Commit | Line | Data |
---|---|---|
e2f34481 NJ |
1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* | |
3 | * Copyright (C) 2016 Namjae Jeon <linkinjeon@kernel.org> | |
4 | * Copyright (C) 2018 Samsung Electronics Co., Ltd. | |
5 | */ | |
6 | ||
7 | #include <linux/inetdevice.h> | |
8 | #include <net/addrconf.h> | |
9 | #include <linux/syscalls.h> | |
10 | #include <linux/namei.h> | |
11 | #include <linux/statfs.h> | |
12 | #include <linux/ethtool.h> | |
e8c06191 | 13 | #include <linux/falloc.h> |
02655a70 | 14 | #include <linux/mount.h> |
5970e15d | 15 | #include <linux/filelock.h> |
e2f34481 NJ |
16 | |
17 | #include "glob.h" | |
e2f34481 NJ |
18 | #include "smbfsctl.h" |
19 | #include "oplock.h" | |
20 | #include "smbacl.h" | |
21 | ||
22 | #include "auth.h" | |
23 | #include "asn1.h" | |
e2f34481 NJ |
24 | #include "connection.h" |
25 | #include "transport_ipc.h" | |
03d8d4f1 | 26 | #include "transport_rdma.h" |
e2f34481 NJ |
27 | #include "vfs.h" |
28 | #include "vfs_cache.h" | |
29 | #include "misc.h" | |
30 | ||
e2f34481 NJ |
31 | #include "server.h" |
32 | #include "smb_common.h" | |
33 | #include "smbstatus.h" | |
34 | #include "ksmbd_work.h" | |
35 | #include "mgmt/user_config.h" | |
36 | #include "mgmt/share_config.h" | |
37 | #include "mgmt/tree_connect.h" | |
38 | #include "mgmt/user_session.h" | |
39 | #include "mgmt/ksmbd_ida.h" | |
40 | #include "ndr.h" | |
41 | ||
42 | static void __wbuf(struct ksmbd_work *work, void **req, void **rsp) | |
43 | { | |
44 | if (work->next_smb2_rcv_hdr_off) { | |
8a893315 NJ |
45 | *req = ksmbd_req_buf_next(work); |
46 | *rsp = ksmbd_resp_buf_next(work); | |
e2f34481 | 47 | } else { |
cb451720 NJ |
48 | *req = smb2_get_msg(work->request_buf); |
49 | *rsp = smb2_get_msg(work->response_buf); | |
e2f34481 NJ |
50 | } |
51 | } | |
52 | ||
53 | #define WORK_BUFFERS(w, rq, rs) __wbuf((w), (void **)&(rq), (void **)&(rs)) | |
54 | ||
55 | /** | |
56 | * check_session_id() - check for valid session id in smb header | |
57 | * @conn: connection instance | |
58 | * @id: session id from smb header | |
59 | * | |
60 | * Return: 1 if valid session id, otherwise 0 | |
61 | */ | |
f4228b67 | 62 | static inline bool check_session_id(struct ksmbd_conn *conn, u64 id) |
e2f34481 NJ |
63 | { |
64 | struct ksmbd_session *sess; | |
65 | ||
66 | if (id == 0 || id == -1) | |
f4228b67 | 67 | return false; |
e2f34481 | 68 | |
f5a544e3 | 69 | sess = ksmbd_session_lookup_all(conn, id); |
e2f34481 | 70 | if (sess) |
f4228b67 | 71 | return true; |
bde1694a | 72 | pr_err("Invalid user session id: %llu\n", id); |
f4228b67 | 73 | return false; |
e2f34481 NJ |
74 | } |
75 | ||
f5a544e3 | 76 | struct channel *lookup_chann_list(struct ksmbd_session *sess, struct ksmbd_conn *conn) |
e2f34481 | 77 | { |
1d9c4172 | 78 | return xa_load(&sess->ksmbd_chann_list, (long)conn); |
e2f34481 NJ |
79 | } |
80 | ||
81 | /** | |
5ec3df8e | 82 | * smb2_get_ksmbd_tcon() - get tree connection information using a tree id. |
95fa1ce9 | 83 | * @work: smb work |
e2f34481 | 84 | * |
5ec3df8e NJ |
85 | * Return: 0 if there is a tree connection matched or these are |
86 | * skipable commands, otherwise error | |
e2f34481 NJ |
87 | */ |
88 | int smb2_get_ksmbd_tcon(struct ksmbd_work *work) | |
89 | { | |
3df0411e | 90 | struct smb2_hdr *req_hdr = ksmbd_req_buf_next(work); |
341b1601 | 91 | unsigned int cmd = le16_to_cpu(req_hdr->Command); |
3df0411e | 92 | unsigned int tree_id; |
e2f34481 | 93 | |
341b1601 RB |
94 | if (cmd == SMB2_TREE_CONNECT_HE || |
95 | cmd == SMB2_CANCEL_HE || | |
96 | cmd == SMB2_LOGOFF_HE) { | |
e2f34481 NJ |
97 | ksmbd_debug(SMB, "skip to check tree connect request\n"); |
98 | return 0; | |
99 | } | |
100 | ||
02b68b20 | 101 | if (xa_empty(&work->sess->tree_conns)) { |
e2f34481 | 102 | ksmbd_debug(SMB, "NO tree connected\n"); |
c6ce2b57 | 103 | return -ENOENT; |
e2f34481 NJ |
104 | } |
105 | ||
106 | tree_id = le32_to_cpu(req_hdr->Id.SyncId.TreeId); | |
5005bcb4 NJ |
107 | |
108 | /* | |
109 | * If request is not the first in Compound request, | |
110 | * Just validate tree id in header with work->tcon->id. | |
111 | */ | |
112 | if (work->next_smb2_rcv_hdr_off) { | |
113 | if (!work->tcon) { | |
114 | pr_err("The first operation in the compound does not have tcon\n"); | |
115 | return -EINVAL; | |
116 | } | |
3df0411e | 117 | if (tree_id != UINT_MAX && work->tcon->id != tree_id) { |
5005bcb4 NJ |
118 | pr_err("tree id(%u) is different with id(%u) in first operation\n", |
119 | tree_id, work->tcon->id); | |
120 | return -EINVAL; | |
121 | } | |
122 | return 1; | |
123 | } | |
124 | ||
e2f34481 NJ |
125 | work->tcon = ksmbd_tree_conn_lookup(work->sess, tree_id); |
126 | if (!work->tcon) { | |
bde1694a | 127 | pr_err("Invalid tid %d\n", tree_id); |
5005bcb4 | 128 | return -ENOENT; |
e2f34481 NJ |
129 | } |
130 | ||
131 | return 1; | |
132 | } | |
133 | ||
134 | /** | |
135 | * smb2_set_err_rsp() - set error response code on smb response | |
136 | * @work: smb work containing response buffer | |
137 | */ | |
138 | void smb2_set_err_rsp(struct ksmbd_work *work) | |
139 | { | |
140 | struct smb2_err_rsp *err_rsp; | |
141 | ||
142 | if (work->next_smb2_rcv_hdr_off) | |
8a893315 | 143 | err_rsp = ksmbd_resp_buf_next(work); |
e2f34481 | 144 | else |
cb451720 | 145 | err_rsp = smb2_get_msg(work->response_buf); |
e2f34481 NJ |
146 | |
147 | if (err_rsp->hdr.Status != STATUS_STOPPED_ON_SYMLINK) { | |
e2b76ab8 NJ |
148 | int err; |
149 | ||
e2f34481 NJ |
150 | err_rsp->StructureSize = SMB2_ERROR_STRUCTURE_SIZE2_LE; |
151 | err_rsp->ErrorContextCount = 0; | |
152 | err_rsp->Reserved = 0; | |
153 | err_rsp->ByteCount = 0; | |
154 | err_rsp->ErrorData[0] = 0; | |
e2b76ab8 | 155 | err = ksmbd_iov_pin_rsp(work, (void *)err_rsp, |
041bba44 NJ |
156 | __SMB2_HEADER_STRUCTURE_SIZE + |
157 | SMB2_ERROR_STRUCTURE_SIZE2); | |
e2b76ab8 NJ |
158 | if (err) |
159 | work->send_no_response = 1; | |
e2f34481 NJ |
160 | } |
161 | } | |
162 | ||
163 | /** | |
164 | * is_smb2_neg_cmd() - is it smb2 negotiation command | |
165 | * @work: smb work containing smb header | |
166 | * | |
f4228b67 | 167 | * Return: true if smb2 negotiation command, otherwise false |
e2f34481 | 168 | */ |
f4228b67 | 169 | bool is_smb2_neg_cmd(struct ksmbd_work *work) |
e2f34481 | 170 | { |
cb451720 | 171 | struct smb2_hdr *hdr = smb2_get_msg(work->request_buf); |
e2f34481 NJ |
172 | |
173 | /* is it SMB2 header ? */ | |
174 | if (hdr->ProtocolId != SMB2_PROTO_NUMBER) | |
f4228b67 | 175 | return false; |
e2f34481 NJ |
176 | |
177 | /* make sure it is request not response message */ | |
178 | if (hdr->Flags & SMB2_FLAGS_SERVER_TO_REDIR) | |
f4228b67 | 179 | return false; |
e2f34481 NJ |
180 | |
181 | if (hdr->Command != SMB2_NEGOTIATE) | |
f4228b67 | 182 | return false; |
e2f34481 | 183 | |
f4228b67 | 184 | return true; |
e2f34481 NJ |
185 | } |
186 | ||
187 | /** | |
188 | * is_smb2_rsp() - is it smb2 response | |
189 | * @work: smb work containing smb response buffer | |
190 | * | |
f4228b67 | 191 | * Return: true if smb2 response, otherwise false |
e2f34481 | 192 | */ |
f4228b67 | 193 | bool is_smb2_rsp(struct ksmbd_work *work) |
e2f34481 | 194 | { |
cb451720 | 195 | struct smb2_hdr *hdr = smb2_get_msg(work->response_buf); |
e2f34481 NJ |
196 | |
197 | /* is it SMB2 header ? */ | |
198 | if (hdr->ProtocolId != SMB2_PROTO_NUMBER) | |
f4228b67 | 199 | return false; |
e2f34481 NJ |
200 | |
201 | /* make sure it is response not request message */ | |
202 | if (!(hdr->Flags & SMB2_FLAGS_SERVER_TO_REDIR)) | |
f4228b67 | 203 | return false; |
e2f34481 | 204 | |
f4228b67 | 205 | return true; |
e2f34481 NJ |
206 | } |
207 | ||
208 | /** | |
209 | * get_smb2_cmd_val() - get smb command code from smb header | |
210 | * @work: smb work containing smb request buffer | |
211 | * | |
212 | * Return: smb2 request command value | |
213 | */ | |
fc2d1b58 | 214 | u16 get_smb2_cmd_val(struct ksmbd_work *work) |
e2f34481 NJ |
215 | { |
216 | struct smb2_hdr *rcv_hdr; | |
217 | ||
218 | if (work->next_smb2_rcv_hdr_off) | |
8a893315 | 219 | rcv_hdr = ksmbd_req_buf_next(work); |
e2f34481 | 220 | else |
cb451720 | 221 | rcv_hdr = smb2_get_msg(work->request_buf); |
e2f34481 NJ |
222 | return le16_to_cpu(rcv_hdr->Command); |
223 | } | |
224 | ||
225 | /** | |
226 | * set_smb2_rsp_status() - set error response code on smb2 header | |
227 | * @work: smb work containing response buffer | |
95fa1ce9 | 228 | * @err: error response code |
e2f34481 NJ |
229 | */ |
230 | void set_smb2_rsp_status(struct ksmbd_work *work, __le32 err) | |
231 | { | |
232 | struct smb2_hdr *rsp_hdr; | |
233 | ||
be0f89d4 | 234 | rsp_hdr = smb2_get_msg(work->response_buf); |
e2f34481 | 235 | rsp_hdr->Status = err; |
be0f89d4 NJ |
236 | |
237 | work->iov_idx = 0; | |
238 | work->iov_cnt = 0; | |
239 | work->next_smb2_rcv_hdr_off = 0; | |
e2f34481 NJ |
240 | smb2_set_err_rsp(work); |
241 | } | |
242 | ||
243 | /** | |
244 | * init_smb2_neg_rsp() - initialize smb2 response for negotiate command | |
245 | * @work: smb work containing smb request buffer | |
246 | * | |
247 | * smb2 negotiate response is sent in reply of smb1 negotiate command for | |
248 | * dialect auto-negotiation. | |
249 | */ | |
250 | int init_smb2_neg_rsp(struct ksmbd_work *work) | |
251 | { | |
252 | struct smb2_hdr *rsp_hdr; | |
253 | struct smb2_negotiate_rsp *rsp; | |
254 | struct ksmbd_conn *conn = work->conn; | |
e2b76ab8 | 255 | int err; |
e2f34481 | 256 | |
cb451720 | 257 | rsp_hdr = smb2_get_msg(work->response_buf); |
e2f34481 | 258 | memset(rsp_hdr, 0, sizeof(struct smb2_hdr) + 2); |
e2f34481 NJ |
259 | rsp_hdr->ProtocolId = SMB2_PROTO_NUMBER; |
260 | rsp_hdr->StructureSize = SMB2_HEADER_STRUCTURE_SIZE; | |
261 | rsp_hdr->CreditRequest = cpu_to_le16(2); | |
262 | rsp_hdr->Command = SMB2_NEGOTIATE; | |
263 | rsp_hdr->Flags = (SMB2_FLAGS_SERVER_TO_REDIR); | |
264 | rsp_hdr->NextCommand = 0; | |
265 | rsp_hdr->MessageId = 0; | |
266 | rsp_hdr->Id.SyncId.ProcessId = 0; | |
267 | rsp_hdr->Id.SyncId.TreeId = 0; | |
268 | rsp_hdr->SessionId = 0; | |
269 | memset(rsp_hdr->Signature, 0, 16); | |
270 | ||
cb451720 | 271 | rsp = smb2_get_msg(work->response_buf); |
e2f34481 | 272 | |
f5c779b7 | 273 | WARN_ON(ksmbd_conn_good(conn)); |
e2f34481 NJ |
274 | |
275 | rsp->StructureSize = cpu_to_le16(65); | |
276 | ksmbd_debug(SMB, "conn->dialect 0x%x\n", conn->dialect); | |
277 | rsp->DialectRevision = cpu_to_le16(conn->dialect); | |
278 | /* Not setting conn guid rsp->ServerGUID, as it | |
279 | * not used by client for identifying connection | |
280 | */ | |
281 | rsp->Capabilities = cpu_to_le32(conn->vals->capabilities); | |
282 | /* Default Max Message Size till SMB2.0, 64K*/ | |
283 | rsp->MaxTransactSize = cpu_to_le32(conn->vals->max_trans_size); | |
284 | rsp->MaxReadSize = cpu_to_le32(conn->vals->max_read_size); | |
285 | rsp->MaxWriteSize = cpu_to_le32(conn->vals->max_write_size); | |
286 | ||
287 | rsp->SystemTime = cpu_to_le64(ksmbd_systime()); | |
288 | rsp->ServerStartTime = 0; | |
289 | ||
290 | rsp->SecurityBufferOffset = cpu_to_le16(128); | |
291 | rsp->SecurityBufferLength = cpu_to_le16(AUTH_GSS_LENGTH); | |
cb451720 | 292 | ksmbd_copy_gss_neg_header((char *)(&rsp->hdr) + |
e2f34481 | 293 | le16_to_cpu(rsp->SecurityBufferOffset)); |
e2f34481 NJ |
294 | rsp->SecurityMode = SMB2_NEGOTIATE_SIGNING_ENABLED_LE; |
295 | if (server_conf.signing == KSMBD_CONFIG_OPT_MANDATORY) | |
296 | rsp->SecurityMode |= SMB2_NEGOTIATE_SIGNING_REQUIRED_LE; | |
e2b76ab8 NJ |
297 | err = ksmbd_iov_pin_rsp(work, rsp, |
298 | sizeof(struct smb2_negotiate_rsp) + AUTH_GSS_LENGTH); | |
299 | if (err) | |
300 | return err; | |
e2f34481 NJ |
301 | conn->use_spnego = true; |
302 | ||
f5c779b7 | 303 | ksmbd_conn_set_need_negotiate(conn); |
e2f34481 NJ |
304 | return 0; |
305 | } | |
306 | ||
e2f34481 NJ |
307 | /** |
308 | * smb2_set_rsp_credits() - set number of credits in response buffer | |
309 | * @work: smb work containing smb response buffer | |
310 | */ | |
311 | int smb2_set_rsp_credits(struct ksmbd_work *work) | |
312 | { | |
8a893315 NJ |
313 | struct smb2_hdr *req_hdr = ksmbd_req_buf_next(work); |
314 | struct smb2_hdr *hdr = ksmbd_resp_buf_next(work); | |
e2f34481 | 315 | struct ksmbd_conn *conn = work->conn; |
914d7e57 | 316 | unsigned short credits_requested, aux_max; |
bf8acc9e | 317 | unsigned short credit_charge, credits_granted = 0; |
e2f34481 | 318 | |
bf8acc9e HL |
319 | if (work->send_no_response) |
320 | return 0; | |
e2f34481 | 321 | |
bf8acc9e | 322 | hdr->CreditCharge = req_hdr->CreditCharge; |
e2f34481 | 323 | |
004443b3 | 324 | if (conn->total_credits > conn->vals->max_credits) { |
bf8acc9e | 325 | hdr->CreditRequest = 0; |
bde1694a | 326 | pr_err("Total credits overflow: %d\n", conn->total_credits); |
bf8acc9e | 327 | return -EINVAL; |
e2f34481 NJ |
328 | } |
329 | ||
bf8acc9e HL |
330 | credit_charge = max_t(unsigned short, |
331 | le16_to_cpu(req_hdr->CreditCharge), 1); | |
914d7e57 NJ |
332 | if (credit_charge > conn->total_credits) { |
333 | ksmbd_debug(SMB, "Insufficient credits granted, given: %u, granted: %u\n", | |
334 | credit_charge, conn->total_credits); | |
335 | return -EINVAL; | |
336 | } | |
337 | ||
338 | conn->total_credits -= credit_charge; | |
b589f5db | 339 | conn->outstanding_credits -= credit_charge; |
bf8acc9e HL |
340 | credits_requested = max_t(unsigned short, |
341 | le16_to_cpu(req_hdr->CreditRequest), 1); | |
e2f34481 | 342 | |
bf8acc9e HL |
343 | /* according to smb2.credits smbtorture, Windows server |
344 | * 2016 or later grant up to 8192 credits at once. | |
345 | * | |
346 | * TODO: Need to adjuct CreditRequest value according to | |
347 | * current cpu load | |
348 | */ | |
bf8acc9e | 349 | if (hdr->Command == SMB2_NEGOTIATE) |
914d7e57 | 350 | aux_max = 1; |
bf8acc9e | 351 | else |
84c5aa47 | 352 | aux_max = conn->vals->max_credits - conn->total_credits; |
914d7e57 | 353 | credits_granted = min_t(unsigned short, credits_requested, aux_max); |
bf8acc9e | 354 | |
e2f34481 NJ |
355 | conn->total_credits += credits_granted; |
356 | work->credits_granted += credits_granted; | |
357 | ||
358 | if (!req_hdr->NextCommand) { | |
359 | /* Update CreditRequest in last request */ | |
360 | hdr->CreditRequest = cpu_to_le16(work->credits_granted); | |
361 | } | |
e2f34481 | 362 | ksmbd_debug(SMB, |
070fb21e NJ |
363 | "credits: requested[%d] granted[%d] total_granted[%d]\n", |
364 | credits_requested, credits_granted, | |
365 | conn->total_credits); | |
e2f34481 NJ |
366 | return 0; |
367 | } | |
368 | ||
369 | /** | |
370 | * init_chained_smb2_rsp() - initialize smb2 chained response | |
371 | * @work: smb work containing smb response buffer | |
372 | */ | |
373 | static void init_chained_smb2_rsp(struct ksmbd_work *work) | |
374 | { | |
8a893315 NJ |
375 | struct smb2_hdr *req = ksmbd_req_buf_next(work); |
376 | struct smb2_hdr *rsp = ksmbd_resp_buf_next(work); | |
e2f34481 NJ |
377 | struct smb2_hdr *rsp_hdr; |
378 | struct smb2_hdr *rcv_hdr; | |
379 | int next_hdr_offset = 0; | |
380 | int len, new_len; | |
381 | ||
382 | /* Len of this response = updated RFC len - offset of previous cmd | |
383 | * in the compound rsp | |
384 | */ | |
385 | ||
386 | /* Storing the current local FID which may be needed by subsequent | |
387 | * command in the compound request | |
388 | */ | |
389 | if (req->Command == SMB2_CREATE && rsp->Status == STATUS_SUCCESS) { | |
2d004c6c PA |
390 | work->compound_fid = ((struct smb2_create_rsp *)rsp)->VolatileFileId; |
391 | work->compound_pfid = ((struct smb2_create_rsp *)rsp)->PersistentFileId; | |
e2f34481 NJ |
392 | work->compound_sid = le64_to_cpu(rsp->SessionId); |
393 | } | |
394 | ||
e5066499 | 395 | len = get_rfc1002_len(work->response_buf) - work->next_smb2_rsp_hdr_off; |
e2f34481 NJ |
396 | next_hdr_offset = le32_to_cpu(req->NextCommand); |
397 | ||
398 | new_len = ALIGN(len, 8); | |
e2b76ab8 NJ |
399 | work->iov[work->iov_idx].iov_len += (new_len - len); |
400 | inc_rfc1001_len(work->response_buf, new_len - len); | |
e2f34481 NJ |
401 | rsp->NextCommand = cpu_to_le32(new_len); |
402 | ||
403 | work->next_smb2_rcv_hdr_off += next_hdr_offset; | |
e2b76ab8 | 404 | work->curr_smb2_rsp_hdr_off = work->next_smb2_rsp_hdr_off; |
e2f34481 NJ |
405 | work->next_smb2_rsp_hdr_off += new_len; |
406 | ksmbd_debug(SMB, | |
070fb21e NJ |
407 | "Compound req new_len = %d rcv off = %d rsp off = %d\n", |
408 | new_len, work->next_smb2_rcv_hdr_off, | |
409 | work->next_smb2_rsp_hdr_off); | |
e2f34481 | 410 | |
8a893315 NJ |
411 | rsp_hdr = ksmbd_resp_buf_next(work); |
412 | rcv_hdr = ksmbd_req_buf_next(work); | |
e2f34481 NJ |
413 | |
414 | if (!(rcv_hdr->Flags & SMB2_FLAGS_RELATED_OPERATIONS)) { | |
415 | ksmbd_debug(SMB, "related flag should be set\n"); | |
416 | work->compound_fid = KSMBD_NO_FID; | |
417 | work->compound_pfid = KSMBD_NO_FID; | |
418 | } | |
cb451720 | 419 | memset((char *)rsp_hdr, 0, sizeof(struct smb2_hdr) + 2); |
18a015bc | 420 | rsp_hdr->ProtocolId = SMB2_PROTO_NUMBER; |
e2f34481 NJ |
421 | rsp_hdr->StructureSize = SMB2_HEADER_STRUCTURE_SIZE; |
422 | rsp_hdr->Command = rcv_hdr->Command; | |
423 | ||
424 | /* | |
425 | * Message is response. We don't grant oplock yet. | |
426 | */ | |
427 | rsp_hdr->Flags = (SMB2_FLAGS_SERVER_TO_REDIR | | |
428 | SMB2_FLAGS_RELATED_OPERATIONS); | |
429 | rsp_hdr->NextCommand = 0; | |
430 | rsp_hdr->MessageId = rcv_hdr->MessageId; | |
431 | rsp_hdr->Id.SyncId.ProcessId = rcv_hdr->Id.SyncId.ProcessId; | |
432 | rsp_hdr->Id.SyncId.TreeId = rcv_hdr->Id.SyncId.TreeId; | |
433 | rsp_hdr->SessionId = rcv_hdr->SessionId; | |
434 | memcpy(rsp_hdr->Signature, rcv_hdr->Signature, 16); | |
435 | } | |
436 | ||
437 | /** | |
438 | * is_chained_smb2_message() - check for chained command | |
439 | * @work: smb work containing smb request buffer | |
440 | * | |
441 | * Return: true if chained request, otherwise false | |
442 | */ | |
443 | bool is_chained_smb2_message(struct ksmbd_work *work) | |
444 | { | |
cb451720 | 445 | struct smb2_hdr *hdr = smb2_get_msg(work->request_buf); |
d72a9c15 | 446 | unsigned int len, next_cmd; |
e2f34481 NJ |
447 | |
448 | if (hdr->ProtocolId != SMB2_PROTO_NUMBER) | |
449 | return false; | |
450 | ||
8a893315 | 451 | hdr = ksmbd_req_buf_next(work); |
d72a9c15 NJ |
452 | next_cmd = le32_to_cpu(hdr->NextCommand); |
453 | if (next_cmd > 0) { | |
454 | if ((u64)work->next_smb2_rcv_hdr_off + next_cmd + | |
455 | __SMB2_HEADER_STRUCTURE_SIZE > | |
456 | get_rfc1002_len(work->request_buf)) { | |
457 | pr_err("next command(%u) offset exceeds smb msg size\n", | |
458 | next_cmd); | |
459 | return false; | |
460 | } | |
461 | ||
dbad6300 NJ |
462 | if ((u64)get_rfc1002_len(work->response_buf) + MAX_CIFS_SMALL_BUFFER_SIZE > |
463 | work->response_sz) { | |
464 | pr_err("next response offset exceeds response buffer size\n"); | |
465 | return false; | |
466 | } | |
467 | ||
e2f34481 NJ |
468 | ksmbd_debug(SMB, "got SMB2 chained command\n"); |
469 | init_chained_smb2_rsp(work); | |
470 | return true; | |
471 | } else if (work->next_smb2_rcv_hdr_off) { | |
472 | /* | |
473 | * This is last request in chained command, | |
474 | * align response to 8 byte | |
475 | */ | |
e5066499 NJ |
476 | len = ALIGN(get_rfc1002_len(work->response_buf), 8); |
477 | len = len - get_rfc1002_len(work->response_buf); | |
e2f34481 NJ |
478 | if (len) { |
479 | ksmbd_debug(SMB, "padding len %u\n", len); | |
e2b76ab8 | 480 | work->iov[work->iov_idx].iov_len += len; |
e5066499 | 481 | inc_rfc1001_len(work->response_buf, len); |
e2f34481 | 482 | } |
e2b76ab8 | 483 | work->curr_smb2_rsp_hdr_off = work->next_smb2_rsp_hdr_off; |
e2f34481 NJ |
484 | } |
485 | return false; | |
486 | } | |
487 | ||
488 | /** | |
489 | * init_smb2_rsp_hdr() - initialize smb2 response | |
490 | * @work: smb work containing smb request buffer | |
491 | * | |
492 | * Return: 0 | |
493 | */ | |
494 | int init_smb2_rsp_hdr(struct ksmbd_work *work) | |
495 | { | |
cb451720 NJ |
496 | struct smb2_hdr *rsp_hdr = smb2_get_msg(work->response_buf); |
497 | struct smb2_hdr *rcv_hdr = smb2_get_msg(work->request_buf); | |
e2f34481 NJ |
498 | |
499 | memset(rsp_hdr, 0, sizeof(struct smb2_hdr) + 2); | |
e2f34481 NJ |
500 | rsp_hdr->ProtocolId = rcv_hdr->ProtocolId; |
501 | rsp_hdr->StructureSize = SMB2_HEADER_STRUCTURE_SIZE; | |
502 | rsp_hdr->Command = rcv_hdr->Command; | |
503 | ||
504 | /* | |
505 | * Message is response. We don't grant oplock yet. | |
506 | */ | |
507 | rsp_hdr->Flags = (SMB2_FLAGS_SERVER_TO_REDIR); | |
508 | rsp_hdr->NextCommand = 0; | |
509 | rsp_hdr->MessageId = rcv_hdr->MessageId; | |
510 | rsp_hdr->Id.SyncId.ProcessId = rcv_hdr->Id.SyncId.ProcessId; | |
511 | rsp_hdr->Id.SyncId.TreeId = rcv_hdr->Id.SyncId.TreeId; | |
512 | rsp_hdr->SessionId = rcv_hdr->SessionId; | |
513 | memcpy(rsp_hdr->Signature, rcv_hdr->Signature, 16); | |
514 | ||
e2f34481 NJ |
515 | return 0; |
516 | } | |
517 | ||
518 | /** | |
519 | * smb2_allocate_rsp_buf() - allocate smb2 response buffer | |
520 | * @work: smb work containing smb request buffer | |
521 | * | |
522 | * Return: 0 on success, otherwise -ENOMEM | |
523 | */ | |
524 | int smb2_allocate_rsp_buf(struct ksmbd_work *work) | |
525 | { | |
cb451720 | 526 | struct smb2_hdr *hdr = smb2_get_msg(work->request_buf); |
e2f34481 | 527 | size_t small_sz = MAX_CIFS_SMALL_BUFFER_SIZE; |
4bc59477 | 528 | size_t large_sz = small_sz + work->conn->vals->max_trans_size; |
e2f34481 NJ |
529 | size_t sz = small_sz; |
530 | int cmd = le16_to_cpu(hdr->Command); | |
531 | ||
c30f4eb8 | 532 | if (cmd == SMB2_IOCTL_HE || cmd == SMB2_QUERY_DIRECTORY_HE) |
e2f34481 | 533 | sz = large_sz; |
e2f34481 NJ |
534 | |
535 | if (cmd == SMB2_QUERY_INFO_HE) { | |
536 | struct smb2_query_info_req *req; | |
537 | ||
17cf0c27 NJ |
538 | if (get_rfc1002_len(work->request_buf) < |
539 | offsetof(struct smb2_query_info_req, OutputBufferLength)) | |
540 | return -EINVAL; | |
541 | ||
cb451720 | 542 | req = smb2_get_msg(work->request_buf); |
8f054118 NJ |
543 | if ((req->InfoType == SMB2_O_INFO_FILE && |
544 | (req->FileInfoClass == FILE_FULL_EA_INFORMATION || | |
545 | req->FileInfoClass == FILE_ALL_INFORMATION)) || | |
546 | req->InfoType == SMB2_O_INFO_SECURITY) | |
e2f34481 | 547 | sz = large_sz; |
e2f34481 NJ |
548 | } |
549 | ||
550 | /* allocate large response buf for chained commands */ | |
551 | if (le32_to_cpu(hdr->NextCommand) > 0) | |
552 | sz = large_sz; | |
553 | ||
81a94b27 | 554 | work->response_buf = kvzalloc(sz, GFP_KERNEL); |
63c454f8 | 555 | if (!work->response_buf) |
e2f34481 | 556 | return -ENOMEM; |
e2f34481 NJ |
557 | |
558 | work->response_sz = sz; | |
559 | return 0; | |
560 | } | |
561 | ||
562 | /** | |
563 | * smb2_check_user_session() - check for valid session for a user | |
564 | * @work: smb work containing smb request buffer | |
565 | * | |
566 | * Return: 0 on success, otherwise error | |
567 | */ | |
568 | int smb2_check_user_session(struct ksmbd_work *work) | |
569 | { | |
3df0411e | 570 | struct smb2_hdr *req_hdr = ksmbd_req_buf_next(work); |
e2f34481 | 571 | struct ksmbd_conn *conn = work->conn; |
3df0411e | 572 | unsigned int cmd = le16_to_cpu(req_hdr->Command); |
e2f34481 NJ |
573 | unsigned long long sess_id; |
574 | ||
e2f34481 NJ |
575 | /* |
576 | * SMB2_ECHO, SMB2_NEGOTIATE, SMB2_SESSION_SETUP command do not | |
577 | * require a session id, so no need to validate user session's for | |
578 | * these commands. | |
579 | */ | |
580 | if (cmd == SMB2_ECHO_HE || cmd == SMB2_NEGOTIATE_HE || | |
64b39f4a | 581 | cmd == SMB2_SESSION_SETUP_HE) |
e2f34481 NJ |
582 | return 0; |
583 | ||
f5c779b7 | 584 | if (!ksmbd_conn_good(conn)) |
5005bcb4 | 585 | return -EIO; |
e2f34481 NJ |
586 | |
587 | sess_id = le64_to_cpu(req_hdr->SessionId); | |
5005bcb4 NJ |
588 | |
589 | /* | |
590 | * If request is not the first in Compound request, | |
591 | * Just validate session id in header with work->sess->id. | |
592 | */ | |
593 | if (work->next_smb2_rcv_hdr_off) { | |
594 | if (!work->sess) { | |
595 | pr_err("The first operation in the compound does not have sess\n"); | |
596 | return -EINVAL; | |
597 | } | |
3df0411e | 598 | if (sess_id != ULLONG_MAX && work->sess->id != sess_id) { |
5005bcb4 NJ |
599 | pr_err("session id(%llu) is different with the first operation(%lld)\n", |
600 | sess_id, work->sess->id); | |
601 | return -EINVAL; | |
602 | } | |
603 | return 1; | |
604 | } | |
605 | ||
e2f34481 | 606 | /* Check for validity of user session */ |
f5a544e3 | 607 | work->sess = ksmbd_session_lookup_all(conn, sess_id); |
e2f34481 NJ |
608 | if (work->sess) |
609 | return 1; | |
610 | ksmbd_debug(SMB, "Invalid user session, Uid %llu\n", sess_id); | |
5005bcb4 | 611 | return -ENOENT; |
e2f34481 NJ |
612 | } |
613 | ||
e2f34481 NJ |
614 | /** |
615 | * smb2_get_name() - get filename string from on the wire smb format | |
616 | * @src: source buffer | |
617 | * @maxlen: maxlen of source string | |
d4eeb826 | 618 | * @local_nls: nls_table pointer |
e2f34481 NJ |
619 | * |
620 | * Return: matching converted filename on success, otherwise error ptr | |
621 | */ | |
622 | static char * | |
80917f17 | 623 | smb2_get_name(const char *src, const int maxlen, struct nls_table *local_nls) |
e2f34481 | 624 | { |
265fd199 | 625 | char *name; |
e2f34481 | 626 | |
64b39f4a | 627 | name = smb_strndup_from_utf16(src, maxlen, 1, local_nls); |
e2f34481 | 628 | if (IS_ERR(name)) { |
bde1694a | 629 | pr_err("failed to get name %ld\n", PTR_ERR(name)); |
e2f34481 NJ |
630 | return name; |
631 | } | |
632 | ||
265fd199 HL |
633 | ksmbd_conv_path_to_unix(name); |
634 | ksmbd_strip_last_slash(name); | |
635 | return name; | |
e2f34481 NJ |
636 | } |
637 | ||
e2f34481 NJ |
638 | int setup_async_work(struct ksmbd_work *work, void (*fn)(void **), void **arg) |
639 | { | |
e2f34481 NJ |
640 | struct ksmbd_conn *conn = work->conn; |
641 | int id; | |
642 | ||
d40012a8 | 643 | id = ksmbd_acquire_async_msg_id(&conn->async_ida); |
e2f34481 | 644 | if (id < 0) { |
bde1694a | 645 | pr_err("Failed to alloc async message id\n"); |
e2f34481 NJ |
646 | return id; |
647 | } | |
3a9b557f | 648 | work->asynchronous = true; |
e2f34481 | 649 | work->async_id = id; |
e2f34481 NJ |
650 | |
651 | ksmbd_debug(SMB, | |
070fb21e NJ |
652 | "Send interim Response to inform async request id : %d\n", |
653 | work->async_id); | |
e2f34481 NJ |
654 | |
655 | work->cancel_fn = fn; | |
656 | work->cancel_argv = arg; | |
657 | ||
6c4e675a NJ |
658 | if (list_empty(&work->async_request_entry)) { |
659 | spin_lock(&conn->request_lock); | |
660 | list_add_tail(&work->async_request_entry, &conn->async_requests); | |
661 | spin_unlock(&conn->request_lock); | |
662 | } | |
e2f34481 NJ |
663 | |
664 | return 0; | |
665 | } | |
666 | ||
3a9b557f NJ |
667 | void release_async_work(struct ksmbd_work *work) |
668 | { | |
669 | struct ksmbd_conn *conn = work->conn; | |
670 | ||
671 | spin_lock(&conn->request_lock); | |
672 | list_del_init(&work->async_request_entry); | |
673 | spin_unlock(&conn->request_lock); | |
674 | ||
675 | work->asynchronous = 0; | |
676 | work->cancel_fn = NULL; | |
677 | kfree(work->cancel_argv); | |
678 | work->cancel_argv = NULL; | |
679 | if (work->async_id) { | |
680 | ksmbd_release_id(&conn->async_ida, work->async_id); | |
681 | work->async_id = 0; | |
682 | } | |
683 | } | |
684 | ||
e2f34481 NJ |
685 | void smb2_send_interim_resp(struct ksmbd_work *work, __le32 status) |
686 | { | |
687 | struct smb2_hdr *rsp_hdr; | |
041bba44 | 688 | struct ksmbd_work *in_work = ksmbd_alloc_work_struct(); |
e2f34481 | 689 | |
041bba44 NJ |
690 | if (allocate_interim_rsp_buf(in_work)) { |
691 | pr_err("smb_allocate_rsp_buf failed!\n"); | |
692 | ksmbd_free_work_struct(in_work); | |
693 | return; | |
694 | } | |
695 | ||
696 | in_work->conn = work->conn; | |
697 | memcpy(smb2_get_msg(in_work->response_buf), ksmbd_resp_buf_next(work), | |
698 | __SMB2_HEADER_STRUCTURE_SIZE); | |
699 | ||
700 | rsp_hdr = smb2_get_msg(in_work->response_buf); | |
9ac45ac7 NJ |
701 | rsp_hdr->Flags |= SMB2_FLAGS_ASYNC_COMMAND; |
702 | rsp_hdr->Id.AsyncId = cpu_to_le64(work->async_id); | |
041bba44 | 703 | smb2_set_err_rsp(in_work); |
e2f34481 NJ |
704 | rsp_hdr->Status = status; |
705 | ||
041bba44 NJ |
706 | ksmbd_conn_write(in_work); |
707 | ksmbd_free_work_struct(in_work); | |
e2f34481 NJ |
708 | } |
709 | ||
710 | static __le32 smb2_get_reparse_tag_special_file(umode_t mode) | |
711 | { | |
712 | if (S_ISDIR(mode) || S_ISREG(mode)) | |
713 | return 0; | |
714 | ||
715 | if (S_ISLNK(mode)) | |
716 | return IO_REPARSE_TAG_LX_SYMLINK_LE; | |
717 | else if (S_ISFIFO(mode)) | |
718 | return IO_REPARSE_TAG_LX_FIFO_LE; | |
719 | else if (S_ISSOCK(mode)) | |
720 | return IO_REPARSE_TAG_AF_UNIX_LE; | |
721 | else if (S_ISCHR(mode)) | |
722 | return IO_REPARSE_TAG_LX_CHR_LE; | |
723 | else if (S_ISBLK(mode)) | |
724 | return IO_REPARSE_TAG_LX_BLK_LE; | |
725 | ||
726 | return 0; | |
727 | } | |
728 | ||
729 | /** | |
730 | * smb2_get_dos_mode() - get file mode in dos format from unix mode | |
731 | * @stat: kstat containing file mode | |
95fa1ce9 | 732 | * @attribute: attribute flags |
e2f34481 NJ |
733 | * |
734 | * Return: converted dos mode | |
735 | */ | |
736 | static int smb2_get_dos_mode(struct kstat *stat, int attribute) | |
737 | { | |
738 | int attr = 0; | |
739 | ||
64b39f4a | 740 | if (S_ISDIR(stat->mode)) { |
26a2787d RS |
741 | attr = FILE_ATTRIBUTE_DIRECTORY | |
742 | (attribute & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)); | |
64b39f4a | 743 | } else { |
26a2787d RS |
744 | attr = (attribute & 0x00005137) | FILE_ATTRIBUTE_ARCHIVE; |
745 | attr &= ~(FILE_ATTRIBUTE_DIRECTORY); | |
e2f34481 NJ |
746 | if (S_ISREG(stat->mode) && (server_conf.share_fake_fscaps & |
747 | FILE_SUPPORTS_SPARSE_FILES)) | |
26a2787d | 748 | attr |= FILE_ATTRIBUTE_SPARSE_FILE; |
e2f34481 NJ |
749 | |
750 | if (smb2_get_reparse_tag_special_file(stat->mode)) | |
26a2787d | 751 | attr |= FILE_ATTRIBUTE_REPARSE_POINT; |
e2f34481 NJ |
752 | } |
753 | ||
754 | return attr; | |
755 | } | |
756 | ||
757 | static void build_preauth_ctxt(struct smb2_preauth_neg_context *pneg_ctxt, | |
070fb21e | 758 | __le16 hash_id) |
e2f34481 NJ |
759 | { |
760 | pneg_ctxt->ContextType = SMB2_PREAUTH_INTEGRITY_CAPABILITIES; | |
761 | pneg_ctxt->DataLength = cpu_to_le16(38); | |
762 | pneg_ctxt->HashAlgorithmCount = cpu_to_le16(1); | |
763 | pneg_ctxt->Reserved = cpu_to_le32(0); | |
764 | pneg_ctxt->SaltLength = cpu_to_le16(SMB311_SALT_SIZE); | |
765 | get_random_bytes(pneg_ctxt->Salt, SMB311_SALT_SIZE); | |
766 | pneg_ctxt->HashAlgorithms = hash_id; | |
767 | } | |
768 | ||
769 | static void build_encrypt_ctxt(struct smb2_encryption_neg_context *pneg_ctxt, | |
070fb21e | 770 | __le16 cipher_type) |
e2f34481 NJ |
771 | { |
772 | pneg_ctxt->ContextType = SMB2_ENCRYPTION_CAPABILITIES; | |
773 | pneg_ctxt->DataLength = cpu_to_le16(4); | |
774 | pneg_ctxt->Reserved = cpu_to_le32(0); | |
775 | pneg_ctxt->CipherCount = cpu_to_le16(1); | |
776 | pneg_ctxt->Ciphers[0] = cipher_type; | |
777 | } | |
778 | ||
378087cd NJ |
779 | static void build_sign_cap_ctxt(struct smb2_signing_capabilities *pneg_ctxt, |
780 | __le16 sign_algo) | |
781 | { | |
782 | pneg_ctxt->ContextType = SMB2_SIGNING_CAPABILITIES; | |
783 | pneg_ctxt->DataLength = | |
784 | cpu_to_le16((sizeof(struct smb2_signing_capabilities) + 2) | |
785 | - sizeof(struct smb2_neg_context)); | |
786 | pneg_ctxt->Reserved = cpu_to_le32(0); | |
787 | pneg_ctxt->SigningAlgorithmCount = cpu_to_le16(1); | |
788 | pneg_ctxt->SigningAlgorithms[0] = sign_algo; | |
789 | } | |
790 | ||
64b39f4a | 791 | static void build_posix_ctxt(struct smb2_posix_neg_context *pneg_ctxt) |
e2f34481 NJ |
792 | { |
793 | pneg_ctxt->ContextType = SMB2_POSIX_EXTENSIONS_AVAILABLE; | |
794 | pneg_ctxt->DataLength = cpu_to_le16(POSIX_CTXT_DATA_LEN); | |
795 | /* SMB2_CREATE_TAG_POSIX is "0x93AD25509CB411E7B42383DE968BCD7C" */ | |
796 | pneg_ctxt->Name[0] = 0x93; | |
797 | pneg_ctxt->Name[1] = 0xAD; | |
798 | pneg_ctxt->Name[2] = 0x25; | |
799 | pneg_ctxt->Name[3] = 0x50; | |
800 | pneg_ctxt->Name[4] = 0x9C; | |
801 | pneg_ctxt->Name[5] = 0xB4; | |
802 | pneg_ctxt->Name[6] = 0x11; | |
803 | pneg_ctxt->Name[7] = 0xE7; | |
804 | pneg_ctxt->Name[8] = 0xB4; | |
805 | pneg_ctxt->Name[9] = 0x23; | |
806 | pneg_ctxt->Name[10] = 0x83; | |
807 | pneg_ctxt->Name[11] = 0xDE; | |
808 | pneg_ctxt->Name[12] = 0x96; | |
809 | pneg_ctxt->Name[13] = 0x8B; | |
810 | pneg_ctxt->Name[14] = 0xCD; | |
811 | pneg_ctxt->Name[15] = 0x7C; | |
812 | } | |
813 | ||
e2b76ab8 NJ |
814 | static unsigned int assemble_neg_contexts(struct ksmbd_conn *conn, |
815 | struct smb2_negotiate_rsp *rsp) | |
e2f34481 | 816 | { |
a12a07a8 | 817 | char * const pneg_ctxt = (char *)rsp + |
cb451720 | 818 | le32_to_cpu(rsp->NegotiateContextOffset); |
e2f34481 NJ |
819 | int neg_ctxt_cnt = 1; |
820 | int ctxt_size; | |
821 | ||
822 | ksmbd_debug(SMB, | |
070fb21e | 823 | "assemble SMB2_PREAUTH_INTEGRITY_CAPABILITIES context\n"); |
e2f34481 | 824 | build_preauth_ctxt((struct smb2_preauth_neg_context *)pneg_ctxt, |
070fb21e | 825 | conn->preauth_info->Preauth_HashId); |
e2f34481 | 826 | ctxt_size = sizeof(struct smb2_preauth_neg_context); |
e2f34481 NJ |
827 | |
828 | if (conn->cipher_type) { | |
a12a07a8 | 829 | /* Round to 8 byte boundary */ |
e2f34481 NJ |
830 | ctxt_size = round_up(ctxt_size, 8); |
831 | ksmbd_debug(SMB, | |
070fb21e | 832 | "assemble SMB2_ENCRYPTION_CAPABILITIES context\n"); |
a12a07a8 DD |
833 | build_encrypt_ctxt((struct smb2_encryption_neg_context *) |
834 | (pneg_ctxt + ctxt_size), | |
070fb21e | 835 | conn->cipher_type); |
34e8ccf9 | 836 | neg_ctxt_cnt++; |
af320a73 | 837 | ctxt_size += sizeof(struct smb2_encryption_neg_context) + 2; |
e2f34481 NJ |
838 | } |
839 | ||
af36c51e DD |
840 | /* compression context not yet supported */ |
841 | WARN_ON(conn->compress_algorithm != SMB3_COMPRESS_NONE); | |
e2f34481 NJ |
842 | |
843 | if (conn->posix_ext_supported) { | |
844 | ctxt_size = round_up(ctxt_size, 8); | |
845 | ksmbd_debug(SMB, | |
070fb21e | 846 | "assemble SMB2_POSIX_EXTENSIONS_AVAILABLE context\n"); |
a12a07a8 DD |
847 | build_posix_ctxt((struct smb2_posix_neg_context *) |
848 | (pneg_ctxt + ctxt_size)); | |
34e8ccf9 | 849 | neg_ctxt_cnt++; |
e2f34481 | 850 | ctxt_size += sizeof(struct smb2_posix_neg_context); |
378087cd NJ |
851 | } |
852 | ||
853 | if (conn->signing_negotiated) { | |
854 | ctxt_size = round_up(ctxt_size, 8); | |
855 | ksmbd_debug(SMB, | |
856 | "assemble SMB2_SIGNING_CAPABILITIES context\n"); | |
a12a07a8 DD |
857 | build_sign_cap_ctxt((struct smb2_signing_capabilities *) |
858 | (pneg_ctxt + ctxt_size), | |
378087cd | 859 | conn->signing_algorithm); |
34e8ccf9 | 860 | neg_ctxt_cnt++; |
378087cd | 861 | ctxt_size += sizeof(struct smb2_signing_capabilities) + 2; |
e2f34481 NJ |
862 | } |
863 | ||
34e8ccf9 | 864 | rsp->NegotiateContextCount = cpu_to_le16(neg_ctxt_cnt); |
e2b76ab8 | 865 | return ctxt_size + AUTH_GSS_PADDING; |
e2f34481 NJ |
866 | } |
867 | ||
64b39f4a | 868 | static __le32 decode_preauth_ctxt(struct ksmbd_conn *conn, |
e7067a44 | 869 | struct smb2_preauth_neg_context *pneg_ctxt, |
0512a5f8 | 870 | int ctxt_len) |
e2f34481 | 871 | { |
e7067a44 DD |
872 | /* |
873 | * sizeof(smb2_preauth_neg_context) assumes SMB311_SALT_SIZE Salt, | |
874 | * which may not be present. Only check for used HashAlgorithms[1]. | |
875 | */ | |
0512a5f8 KTC |
876 | if (ctxt_len < |
877 | sizeof(struct smb2_neg_context) + MIN_PREAUTH_CTXT_DATA_LEN) | |
e7067a44 | 878 | return STATUS_INVALID_PARAMETER; |
e2f34481 | 879 | |
e7067a44 DD |
880 | if (pneg_ctxt->HashAlgorithms != SMB2_PREAUTH_INTEGRITY_SHA512) |
881 | return STATUS_NO_PREAUTH_INTEGRITY_HASH_OVERLAP; | |
e2f34481 | 882 | |
e7067a44 DD |
883 | conn->preauth_info->Preauth_HashId = SMB2_PREAUTH_INTEGRITY_SHA512; |
884 | return STATUS_SUCCESS; | |
e2f34481 NJ |
885 | } |
886 | ||
af320a73 NJ |
887 | static void decode_encrypt_ctxt(struct ksmbd_conn *conn, |
888 | struct smb2_encryption_neg_context *pneg_ctxt, | |
0512a5f8 | 889 | int ctxt_len) |
e2f34481 | 890 | { |
0512a5f8 KTC |
891 | int cph_cnt; |
892 | int i, cphs_size; | |
893 | ||
894 | if (sizeof(struct smb2_encryption_neg_context) > ctxt_len) { | |
895 | pr_err("Invalid SMB2_ENCRYPTION_CAPABILITIES context size\n"); | |
896 | return; | |
897 | } | |
e2f34481 NJ |
898 | |
899 | conn->cipher_type = 0; | |
900 | ||
0512a5f8 KTC |
901 | cph_cnt = le16_to_cpu(pneg_ctxt->CipherCount); |
902 | cphs_size = cph_cnt * sizeof(__le16); | |
903 | ||
af320a73 | 904 | if (sizeof(struct smb2_encryption_neg_context) + cphs_size > |
0512a5f8 | 905 | ctxt_len) { |
af320a73 NJ |
906 | pr_err("Invalid cipher count(%d)\n", cph_cnt); |
907 | return; | |
908 | } | |
909 | ||
37ba7b00 | 910 | if (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB2_ENCRYPTION_OFF) |
af320a73 | 911 | return; |
e2f34481 NJ |
912 | |
913 | for (i = 0; i < cph_cnt; i++) { | |
914 | if (pneg_ctxt->Ciphers[i] == SMB2_ENCRYPTION_AES128_GCM || | |
5a0ca770 NJ |
915 | pneg_ctxt->Ciphers[i] == SMB2_ENCRYPTION_AES128_CCM || |
916 | pneg_ctxt->Ciphers[i] == SMB2_ENCRYPTION_AES256_CCM || | |
917 | pneg_ctxt->Ciphers[i] == SMB2_ENCRYPTION_AES256_GCM) { | |
e2f34481 | 918 | ksmbd_debug(SMB, "Cipher ID = 0x%x\n", |
070fb21e | 919 | pneg_ctxt->Ciphers[i]); |
e2f34481 NJ |
920 | conn->cipher_type = pneg_ctxt->Ciphers[i]; |
921 | break; | |
922 | } | |
923 | } | |
e2f34481 NJ |
924 | } |
925 | ||
83912d6d MDSV |
926 | /** |
927 | * smb3_encryption_negotiated() - checks if server and client agreed on enabling encryption | |
928 | * @conn: smb connection | |
929 | * | |
930 | * Return: true if connection should be encrypted, else false | |
931 | */ | |
5bedae90 | 932 | bool smb3_encryption_negotiated(struct ksmbd_conn *conn) |
83912d6d MDSV |
933 | { |
934 | if (!conn->ops->generate_encryptionkey) | |
935 | return false; | |
936 | ||
937 | /* | |
938 | * SMB 3.0 and 3.0.2 dialects use the SMB2_GLOBAL_CAP_ENCRYPTION flag. | |
939 | * SMB 3.1.1 uses the cipher_type field. | |
940 | */ | |
941 | return (conn->vals->capabilities & SMB2_GLOBAL_CAP_ENCRYPTION) || | |
942 | conn->cipher_type; | |
943 | } | |
944 | ||
af320a73 | 945 | static void decode_compress_ctxt(struct ksmbd_conn *conn, |
d6c9ad23 | 946 | struct smb2_compression_capabilities_context *pneg_ctxt) |
e2f34481 | 947 | { |
e2f34481 | 948 | conn->compress_algorithm = SMB3_COMPRESS_NONE; |
e2f34481 NJ |
949 | } |
950 | ||
378087cd NJ |
951 | static void decode_sign_cap_ctxt(struct ksmbd_conn *conn, |
952 | struct smb2_signing_capabilities *pneg_ctxt, | |
0512a5f8 | 953 | int ctxt_len) |
378087cd | 954 | { |
0512a5f8 KTC |
955 | int sign_algo_cnt; |
956 | int i, sign_alos_size; | |
957 | ||
958 | if (sizeof(struct smb2_signing_capabilities) > ctxt_len) { | |
959 | pr_err("Invalid SMB2_SIGNING_CAPABILITIES context length\n"); | |
960 | return; | |
961 | } | |
378087cd NJ |
962 | |
963 | conn->signing_negotiated = false; | |
0512a5f8 KTC |
964 | sign_algo_cnt = le16_to_cpu(pneg_ctxt->SigningAlgorithmCount); |
965 | sign_alos_size = sign_algo_cnt * sizeof(__le16); | |
378087cd NJ |
966 | |
967 | if (sizeof(struct smb2_signing_capabilities) + sign_alos_size > | |
0512a5f8 | 968 | ctxt_len) { |
378087cd NJ |
969 | pr_err("Invalid signing algorithm count(%d)\n", sign_algo_cnt); |
970 | return; | |
971 | } | |
972 | ||
973 | for (i = 0; i < sign_algo_cnt; i++) { | |
d6c9ad23 RS |
974 | if (pneg_ctxt->SigningAlgorithms[i] == SIGNING_ALG_HMAC_SHA256_LE || |
975 | pneg_ctxt->SigningAlgorithms[i] == SIGNING_ALG_AES_CMAC_LE) { | |
378087cd NJ |
976 | ksmbd_debug(SMB, "Signing Algorithm ID = 0x%x\n", |
977 | pneg_ctxt->SigningAlgorithms[i]); | |
978 | conn->signing_negotiated = true; | |
979 | conn->signing_algorithm = | |
980 | pneg_ctxt->SigningAlgorithms[i]; | |
981 | break; | |
982 | } | |
983 | } | |
984 | } | |
985 | ||
e2f34481 | 986 | static __le32 deassemble_neg_contexts(struct ksmbd_conn *conn, |
cb451720 | 987 | struct smb2_negotiate_req *req, |
f1a41187 | 988 | unsigned int len_of_smb) |
e2f34481 | 989 | { |
e2f34481 | 990 | /* +4 is to account for the RFC1001 len field */ |
cb451720 | 991 | struct smb2_neg_context *pctx = (struct smb2_neg_context *)req; |
af320a73 | 992 | int i = 0, len_of_ctxts; |
f1a41187 NJ |
993 | unsigned int offset = le32_to_cpu(req->NegotiateContextOffset); |
994 | unsigned int neg_ctxt_cnt = le16_to_cpu(req->NegotiateContextCount); | |
af320a73 NJ |
995 | __le32 status = STATUS_INVALID_PARAMETER; |
996 | ||
997 | ksmbd_debug(SMB, "decoding %d negotiate contexts\n", neg_ctxt_cnt); | |
998 | if (len_of_smb <= offset) { | |
999 | ksmbd_debug(SMB, "Invalid response: negotiate context offset\n"); | |
1000 | return status; | |
1001 | } | |
1002 | ||
1003 | len_of_ctxts = len_of_smb - offset; | |
e2f34481 | 1004 | |
e2f34481 | 1005 | while (i++ < neg_ctxt_cnt) { |
0512a5f8 | 1006 | int clen, ctxt_len; |
af320a73 | 1007 | |
f1a41187 | 1008 | if (len_of_ctxts < (int)sizeof(struct smb2_neg_context)) |
af320a73 NJ |
1009 | break; |
1010 | ||
1011 | pctx = (struct smb2_neg_context *)((char *)pctx + offset); | |
1012 | clen = le16_to_cpu(pctx->DataLength); | |
0512a5f8 KTC |
1013 | ctxt_len = clen + sizeof(struct smb2_neg_context); |
1014 | ||
1015 | if (ctxt_len > len_of_ctxts) | |
af320a73 NJ |
1016 | break; |
1017 | ||
1018 | if (pctx->ContextType == SMB2_PREAUTH_INTEGRITY_CAPABILITIES) { | |
e2f34481 | 1019 | ksmbd_debug(SMB, |
070fb21e | 1020 | "deassemble SMB2_PREAUTH_INTEGRITY_CAPABILITIES context\n"); |
e2f34481 NJ |
1021 | if (conn->preauth_info->Preauth_HashId) |
1022 | break; | |
1023 | ||
1024 | status = decode_preauth_ctxt(conn, | |
e7067a44 | 1025 | (struct smb2_preauth_neg_context *)pctx, |
0512a5f8 | 1026 | ctxt_len); |
af320a73 NJ |
1027 | if (status != STATUS_SUCCESS) |
1028 | break; | |
1029 | } else if (pctx->ContextType == SMB2_ENCRYPTION_CAPABILITIES) { | |
e2f34481 | 1030 | ksmbd_debug(SMB, |
070fb21e | 1031 | "deassemble SMB2_ENCRYPTION_CAPABILITIES context\n"); |
e2f34481 NJ |
1032 | if (conn->cipher_type) |
1033 | break; | |
1034 | ||
af320a73 NJ |
1035 | decode_encrypt_ctxt(conn, |
1036 | (struct smb2_encryption_neg_context *)pctx, | |
0512a5f8 | 1037 | ctxt_len); |
af320a73 | 1038 | } else if (pctx->ContextType == SMB2_COMPRESSION_CAPABILITIES) { |
e2f34481 | 1039 | ksmbd_debug(SMB, |
070fb21e | 1040 | "deassemble SMB2_COMPRESSION_CAPABILITIES context\n"); |
e2f34481 NJ |
1041 | if (conn->compress_algorithm) |
1042 | break; | |
1043 | ||
af320a73 | 1044 | decode_compress_ctxt(conn, |
d6c9ad23 | 1045 | (struct smb2_compression_capabilities_context *)pctx); |
af320a73 | 1046 | } else if (pctx->ContextType == SMB2_NETNAME_NEGOTIATE_CONTEXT_ID) { |
e2f34481 | 1047 | ksmbd_debug(SMB, |
070fb21e | 1048 | "deassemble SMB2_NETNAME_NEGOTIATE_CONTEXT_ID context\n"); |
af320a73 | 1049 | } else if (pctx->ContextType == SMB2_POSIX_EXTENSIONS_AVAILABLE) { |
e2f34481 | 1050 | ksmbd_debug(SMB, |
070fb21e | 1051 | "deassemble SMB2_POSIX_EXTENSIONS_AVAILABLE context\n"); |
e2f34481 | 1052 | conn->posix_ext_supported = true; |
378087cd NJ |
1053 | } else if (pctx->ContextType == SMB2_SIGNING_CAPABILITIES) { |
1054 | ksmbd_debug(SMB, | |
1055 | "deassemble SMB2_SIGNING_CAPABILITIES context\n"); | |
0512a5f8 | 1056 | |
378087cd NJ |
1057 | decode_sign_cap_ctxt(conn, |
1058 | (struct smb2_signing_capabilities *)pctx, | |
0512a5f8 | 1059 | ctxt_len); |
e2f34481 | 1060 | } |
e2f34481 | 1061 | |
af320a73 | 1062 | /* offsets must be 8 byte aligned */ |
f1a41187 NJ |
1063 | offset = (ctxt_len + 7) & ~0x7; |
1064 | len_of_ctxts -= offset; | |
e2f34481 NJ |
1065 | } |
1066 | return status; | |
1067 | } | |
1068 | ||
1069 | /** | |
1070 | * smb2_handle_negotiate() - handler for smb2 negotiate command | |
1071 | * @work: smb work containing smb request buffer | |
1072 | * | |
1073 | * Return: 0 | |
1074 | */ | |
1075 | int smb2_handle_negotiate(struct ksmbd_work *work) | |
1076 | { | |
1077 | struct ksmbd_conn *conn = work->conn; | |
cb451720 NJ |
1078 | struct smb2_negotiate_req *req = smb2_get_msg(work->request_buf); |
1079 | struct smb2_negotiate_rsp *rsp = smb2_get_msg(work->response_buf); | |
e2f34481 | 1080 | int rc = 0; |
e2b76ab8 | 1081 | unsigned int smb2_buf_len, smb2_neg_size, neg_ctxt_len = 0; |
e2f34481 NJ |
1082 | __le32 status; |
1083 | ||
1084 | ksmbd_debug(SMB, "Received negotiate request\n"); | |
1085 | conn->need_neg = false; | |
f5c779b7 | 1086 | if (ksmbd_conn_good(conn)) { |
bde1694a | 1087 | pr_err("conn->tcp_status is already in CifsGood State\n"); |
e2f34481 NJ |
1088 | work->send_no_response = 1; |
1089 | return rc; | |
1090 | } | |
1091 | ||
d738950f KTC |
1092 | smb2_buf_len = get_rfc1002_len(work->request_buf); |
1093 | smb2_neg_size = offsetof(struct smb2_negotiate_req, Dialects); | |
1094 | if (smb2_neg_size > smb2_buf_len) { | |
e2f34481 NJ |
1095 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; |
1096 | rc = -EINVAL; | |
1097 | goto err_out; | |
1098 | } | |
1099 | ||
d738950f KTC |
1100 | if (req->DialectCount == 0) { |
1101 | pr_err("malformed packet\n"); | |
442ff9eb NJ |
1102 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; |
1103 | rc = -EINVAL; | |
1104 | goto err_out; | |
1105 | } | |
1106 | ||
1107 | if (conn->dialect == SMB311_PROT_ID) { | |
1108 | unsigned int nego_ctxt_off = le32_to_cpu(req->NegotiateContextOffset); | |
1109 | ||
1110 | if (smb2_buf_len < nego_ctxt_off) { | |
1111 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; | |
1112 | rc = -EINVAL; | |
1113 | goto err_out; | |
1114 | } | |
1115 | ||
1116 | if (smb2_neg_size > nego_ctxt_off) { | |
1117 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; | |
1118 | rc = -EINVAL; | |
1119 | goto err_out; | |
1120 | } | |
1121 | ||
1122 | if (smb2_neg_size + le16_to_cpu(req->DialectCount) * sizeof(__le16) > | |
1123 | nego_ctxt_off) { | |
1124 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; | |
1125 | rc = -EINVAL; | |
1126 | goto err_out; | |
1127 | } | |
1128 | } else { | |
1129 | if (smb2_neg_size + le16_to_cpu(req->DialectCount) * sizeof(__le16) > | |
1130 | smb2_buf_len) { | |
1131 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; | |
1132 | rc = -EINVAL; | |
1133 | goto err_out; | |
1134 | } | |
1135 | } | |
1136 | ||
e2f34481 NJ |
1137 | conn->cli_cap = le32_to_cpu(req->Capabilities); |
1138 | switch (conn->dialect) { | |
1139 | case SMB311_PROT_ID: | |
1140 | conn->preauth_info = | |
1141 | kzalloc(sizeof(struct preauth_integrity_info), | |
070fb21e | 1142 | GFP_KERNEL); |
e2f34481 NJ |
1143 | if (!conn->preauth_info) { |
1144 | rc = -ENOMEM; | |
1145 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; | |
1146 | goto err_out; | |
1147 | } | |
1148 | ||
cb451720 NJ |
1149 | status = deassemble_neg_contexts(conn, req, |
1150 | get_rfc1002_len(work->request_buf)); | |
e2f34481 | 1151 | if (status != STATUS_SUCCESS) { |
bde1694a NJ |
1152 | pr_err("deassemble_neg_contexts error(0x%x)\n", |
1153 | status); | |
e2f34481 NJ |
1154 | rsp->hdr.Status = status; |
1155 | rc = -EINVAL; | |
aa7253c2 NJ |
1156 | kfree(conn->preauth_info); |
1157 | conn->preauth_info = NULL; | |
e2f34481 NJ |
1158 | goto err_out; |
1159 | } | |
1160 | ||
1161 | rc = init_smb3_11_server(conn); | |
1162 | if (rc < 0) { | |
1163 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; | |
aa7253c2 NJ |
1164 | kfree(conn->preauth_info); |
1165 | conn->preauth_info = NULL; | |
e2f34481 NJ |
1166 | goto err_out; |
1167 | } | |
1168 | ||
1169 | ksmbd_gen_preauth_integrity_hash(conn, | |
070fb21e NJ |
1170 | work->request_buf, |
1171 | conn->preauth_info->Preauth_HashValue); | |
e2f34481 NJ |
1172 | rsp->NegotiateContextOffset = |
1173 | cpu_to_le32(OFFSET_OF_NEG_CONTEXT); | |
e2b76ab8 | 1174 | neg_ctxt_len = assemble_neg_contexts(conn, rsp); |
e2f34481 NJ |
1175 | break; |
1176 | case SMB302_PROT_ID: | |
1177 | init_smb3_02_server(conn); | |
1178 | break; | |
1179 | case SMB30_PROT_ID: | |
1180 | init_smb3_0_server(conn); | |
1181 | break; | |
1182 | case SMB21_PROT_ID: | |
1183 | init_smb2_1_server(conn); | |
1184 | break; | |
e2f34481 NJ |
1185 | case SMB2X_PROT_ID: |
1186 | case BAD_PROT_ID: | |
1187 | default: | |
1188 | ksmbd_debug(SMB, "Server dialect :0x%x not supported\n", | |
070fb21e | 1189 | conn->dialect); |
e2f34481 NJ |
1190 | rsp->hdr.Status = STATUS_NOT_SUPPORTED; |
1191 | rc = -EINVAL; | |
1192 | goto err_out; | |
1193 | } | |
1194 | rsp->Capabilities = cpu_to_le32(conn->vals->capabilities); | |
1195 | ||
1196 | /* For stats */ | |
1197 | conn->connection_type = conn->dialect; | |
1198 | ||
1199 | rsp->MaxTransactSize = cpu_to_le32(conn->vals->max_trans_size); | |
1200 | rsp->MaxReadSize = cpu_to_le32(conn->vals->max_read_size); | |
1201 | rsp->MaxWriteSize = cpu_to_le32(conn->vals->max_write_size); | |
1202 | ||
51a13873 NJ |
1203 | memcpy(conn->ClientGUID, req->ClientGUID, |
1204 | SMB2_CLIENT_GUID_SIZE); | |
1205 | conn->cli_sec_mode = le16_to_cpu(req->SecurityMode); | |
e2f34481 NJ |
1206 | |
1207 | rsp->StructureSize = cpu_to_le16(65); | |
1208 | rsp->DialectRevision = cpu_to_le16(conn->dialect); | |
1209 | /* Not setting conn guid rsp->ServerGUID, as it | |
1210 | * not used by client for identifying server | |
1211 | */ | |
1212 | memset(rsp->ServerGUID, 0, SMB2_CLIENT_GUID_SIZE); | |
1213 | ||
1214 | rsp->SystemTime = cpu_to_le64(ksmbd_systime()); | |
1215 | rsp->ServerStartTime = 0; | |
1216 | ksmbd_debug(SMB, "negotiate context offset %d, count %d\n", | |
070fb21e NJ |
1217 | le32_to_cpu(rsp->NegotiateContextOffset), |
1218 | le16_to_cpu(rsp->NegotiateContextCount)); | |
e2f34481 NJ |
1219 | |
1220 | rsp->SecurityBufferOffset = cpu_to_le16(128); | |
1221 | rsp->SecurityBufferLength = cpu_to_le16(AUTH_GSS_LENGTH); | |
cb451720 NJ |
1222 | ksmbd_copy_gss_neg_header((char *)(&rsp->hdr) + |
1223 | le16_to_cpu(rsp->SecurityBufferOffset)); | |
e2b76ab8 | 1224 | |
e2f34481 NJ |
1225 | rsp->SecurityMode = SMB2_NEGOTIATE_SIGNING_ENABLED_LE; |
1226 | conn->use_spnego = true; | |
1227 | ||
1228 | if ((server_conf.signing == KSMBD_CONFIG_OPT_AUTO || | |
64b39f4a NJ |
1229 | server_conf.signing == KSMBD_CONFIG_OPT_DISABLED) && |
1230 | req->SecurityMode & SMB2_NEGOTIATE_SIGNING_REQUIRED_LE) | |
e2f34481 NJ |
1231 | conn->sign = true; |
1232 | else if (server_conf.signing == KSMBD_CONFIG_OPT_MANDATORY) { | |
1233 | server_conf.enforced_signing = true; | |
1234 | rsp->SecurityMode |= SMB2_NEGOTIATE_SIGNING_REQUIRED_LE; | |
1235 | conn->sign = true; | |
1236 | } | |
1237 | ||
1238 | conn->srv_sec_mode = le16_to_cpu(rsp->SecurityMode); | |
f5c779b7 | 1239 | ksmbd_conn_set_need_negotiate(conn); |
e2f34481 NJ |
1240 | |
1241 | err_out: | |
e2b76ab8 NJ |
1242 | if (rc) |
1243 | rsp->hdr.Status = STATUS_INSUFFICIENT_RESOURCES; | |
1244 | ||
1245 | if (!rc) | |
1246 | rc = ksmbd_iov_pin_rsp(work, rsp, | |
1247 | sizeof(struct smb2_negotiate_rsp) + | |
1248 | AUTH_GSS_LENGTH + neg_ctxt_len); | |
e2f34481 NJ |
1249 | if (rc < 0) |
1250 | smb2_set_err_rsp(work); | |
e2f34481 NJ |
1251 | return rc; |
1252 | } | |
1253 | ||
1254 | static int alloc_preauth_hash(struct ksmbd_session *sess, | |
070fb21e | 1255 | struct ksmbd_conn *conn) |
e2f34481 NJ |
1256 | { |
1257 | if (sess->Preauth_HashValue) | |
1258 | return 0; | |
1259 | ||
86f52978 | 1260 | sess->Preauth_HashValue = kmemdup(conn->preauth_info->Preauth_HashValue, |
070fb21e | 1261 | PREAUTH_HASHVALUE_SIZE, GFP_KERNEL); |
e2f34481 NJ |
1262 | if (!sess->Preauth_HashValue) |
1263 | return -ENOMEM; | |
1264 | ||
e2f34481 NJ |
1265 | return 0; |
1266 | } | |
1267 | ||
1268 | static int generate_preauth_hash(struct ksmbd_work *work) | |
1269 | { | |
1270 | struct ksmbd_conn *conn = work->conn; | |
1271 | struct ksmbd_session *sess = work->sess; | |
f5a544e3 | 1272 | u8 *preauth_hash; |
e2f34481 NJ |
1273 | |
1274 | if (conn->dialect != SMB311_PROT_ID) | |
1275 | return 0; | |
1276 | ||
f5a544e3 NJ |
1277 | if (conn->binding) { |
1278 | struct preauth_session *preauth_sess; | |
1279 | ||
1280 | preauth_sess = ksmbd_preauth_session_lookup(conn, sess->id); | |
1281 | if (!preauth_sess) { | |
1282 | preauth_sess = ksmbd_preauth_session_alloc(conn, sess->id); | |
1283 | if (!preauth_sess) | |
1284 | return -ENOMEM; | |
1285 | } | |
1286 | ||
1287 | preauth_hash = preauth_sess->Preauth_HashValue; | |
1288 | } else { | |
1289 | if (!sess->Preauth_HashValue) | |
1290 | if (alloc_preauth_hash(sess, conn)) | |
1291 | return -ENOMEM; | |
1292 | preauth_hash = sess->Preauth_HashValue; | |
e2f34481 NJ |
1293 | } |
1294 | ||
f5a544e3 | 1295 | ksmbd_gen_preauth_integrity_hash(conn, work->request_buf, preauth_hash); |
e2f34481 NJ |
1296 | return 0; |
1297 | } | |
1298 | ||
0d994cd4 MM |
1299 | static int decode_negotiation_token(struct ksmbd_conn *conn, |
1300 | struct negotiate_message *negblob, | |
1301 | size_t sz) | |
e2f34481 | 1302 | { |
e2f34481 NJ |
1303 | if (!conn->use_spnego) |
1304 | return -EINVAL; | |
1305 | ||
fad4161b HL |
1306 | if (ksmbd_decode_negTokenInit((char *)negblob, sz, conn)) { |
1307 | if (ksmbd_decode_negTokenTarg((char *)negblob, sz, conn)) { | |
e2f34481 NJ |
1308 | conn->auth_mechs |= KSMBD_AUTH_NTLMSSP; |
1309 | conn->preferred_auth_mech = KSMBD_AUTH_NTLMSSP; | |
1310 | conn->use_spnego = false; | |
1311 | } | |
1312 | } | |
1313 | return 0; | |
1314 | } | |
1315 | ||
1316 | static int ntlm_negotiate(struct ksmbd_work *work, | |
0d994cd4 | 1317 | struct negotiate_message *negblob, |
98422bdd | 1318 | size_t negblob_len, struct smb2_sess_setup_rsp *rsp) |
e2f34481 | 1319 | { |
e2f34481 NJ |
1320 | struct challenge_message *chgblob; |
1321 | unsigned char *spnego_blob = NULL; | |
1322 | u16 spnego_blob_len; | |
1323 | char *neg_blob; | |
1324 | int sz, rc; | |
1325 | ||
1326 | ksmbd_debug(SMB, "negotiate phase\n"); | |
ce53d365 | 1327 | rc = ksmbd_decode_ntlmssp_neg_blob(negblob, negblob_len, work->conn); |
e2f34481 NJ |
1328 | if (rc) |
1329 | return rc; | |
1330 | ||
1331 | sz = le16_to_cpu(rsp->SecurityBufferOffset); | |
1332 | chgblob = | |
1333 | (struct challenge_message *)((char *)&rsp->hdr.ProtocolId + sz); | |
1334 | memset(chgblob, 0, sizeof(struct challenge_message)); | |
1335 | ||
1336 | if (!work->conn->use_spnego) { | |
ce53d365 | 1337 | sz = ksmbd_build_ntlmssp_challenge_blob(chgblob, work->conn); |
e2f34481 NJ |
1338 | if (sz < 0) |
1339 | return -ENOMEM; | |
1340 | ||
1341 | rsp->SecurityBufferLength = cpu_to_le16(sz); | |
1342 | return 0; | |
1343 | } | |
1344 | ||
1345 | sz = sizeof(struct challenge_message); | |
1346 | sz += (strlen(ksmbd_netbios_name()) * 2 + 1 + 4) * 6; | |
1347 | ||
1348 | neg_blob = kzalloc(sz, GFP_KERNEL); | |
1349 | if (!neg_blob) | |
1350 | return -ENOMEM; | |
1351 | ||
1352 | chgblob = (struct challenge_message *)neg_blob; | |
ce53d365 | 1353 | sz = ksmbd_build_ntlmssp_challenge_blob(chgblob, work->conn); |
e2f34481 NJ |
1354 | if (sz < 0) { |
1355 | rc = -ENOMEM; | |
1356 | goto out; | |
1357 | } | |
1358 | ||
070fb21e NJ |
1359 | rc = build_spnego_ntlmssp_neg_blob(&spnego_blob, &spnego_blob_len, |
1360 | neg_blob, sz); | |
e2f34481 NJ |
1361 | if (rc) { |
1362 | rc = -ENOMEM; | |
1363 | goto out; | |
1364 | } | |
1365 | ||
1366 | sz = le16_to_cpu(rsp->SecurityBufferOffset); | |
1367 | memcpy((char *)&rsp->hdr.ProtocolId + sz, spnego_blob, spnego_blob_len); | |
1368 | rsp->SecurityBufferLength = cpu_to_le16(spnego_blob_len); | |
1369 | ||
1370 | out: | |
1371 | kfree(spnego_blob); | |
1372 | kfree(neg_blob); | |
1373 | return rc; | |
1374 | } | |
1375 | ||
1376 | static struct authenticate_message *user_authblob(struct ksmbd_conn *conn, | |
070fb21e | 1377 | struct smb2_sess_setup_req *req) |
e2f34481 NJ |
1378 | { |
1379 | int sz; | |
1380 | ||
1381 | if (conn->use_spnego && conn->mechToken) | |
1382 | return (struct authenticate_message *)conn->mechToken; | |
1383 | ||
1384 | sz = le16_to_cpu(req->SecurityBufferOffset); | |
1385 | return (struct authenticate_message *)((char *)&req->hdr.ProtocolId | |
1386 | + sz); | |
1387 | } | |
1388 | ||
1389 | static struct ksmbd_user *session_user(struct ksmbd_conn *conn, | |
070fb21e | 1390 | struct smb2_sess_setup_req *req) |
e2f34481 NJ |
1391 | { |
1392 | struct authenticate_message *authblob; | |
1393 | struct ksmbd_user *user; | |
1394 | char *name; | |
f0a96d1a | 1395 | unsigned int name_off, name_len, secbuf_len; |
e2f34481 | 1396 | |
92e47016 NJ |
1397 | if (conn->use_spnego && conn->mechToken) |
1398 | secbuf_len = conn->mechTokenLen; | |
1399 | else | |
1400 | secbuf_len = le16_to_cpu(req->SecurityBufferLength); | |
0d994cd4 MM |
1401 | if (secbuf_len < sizeof(struct authenticate_message)) { |
1402 | ksmbd_debug(SMB, "blob len %d too small\n", secbuf_len); | |
1403 | return NULL; | |
1404 | } | |
e2f34481 | 1405 | authblob = user_authblob(conn, req); |
0d994cd4 MM |
1406 | name_off = le32_to_cpu(authblob->UserName.BufferOffset); |
1407 | name_len = le16_to_cpu(authblob->UserName.Length); | |
0d994cd4 | 1408 | |
f0a96d1a | 1409 | if (secbuf_len < (u64)name_off + name_len) |
0d994cd4 MM |
1410 | return NULL; |
1411 | ||
1412 | name = smb_strndup_from_utf16((const char *)authblob + name_off, | |
1413 | name_len, | |
e2f34481 NJ |
1414 | true, |
1415 | conn->local_nls); | |
1416 | if (IS_ERR(name)) { | |
bde1694a | 1417 | pr_err("cannot allocate memory\n"); |
e2f34481 NJ |
1418 | return NULL; |
1419 | } | |
1420 | ||
1421 | ksmbd_debug(SMB, "session setup request for user %s\n", name); | |
1422 | user = ksmbd_login_user(name); | |
1423 | kfree(name); | |
1424 | return user; | |
1425 | } | |
1426 | ||
98422bdd NJ |
1427 | static int ntlm_authenticate(struct ksmbd_work *work, |
1428 | struct smb2_sess_setup_req *req, | |
1429 | struct smb2_sess_setup_rsp *rsp) | |
e2f34481 | 1430 | { |
e2f34481 NJ |
1431 | struct ksmbd_conn *conn = work->conn; |
1432 | struct ksmbd_session *sess = work->sess; | |
1433 | struct channel *chann = NULL; | |
1434 | struct ksmbd_user *user; | |
64b39f4a | 1435 | u64 prev_id; |
e2f34481 NJ |
1436 | int sz, rc; |
1437 | ||
1438 | ksmbd_debug(SMB, "authenticate phase\n"); | |
1439 | if (conn->use_spnego) { | |
1440 | unsigned char *spnego_blob; | |
1441 | u16 spnego_blob_len; | |
1442 | ||
1443 | rc = build_spnego_ntlmssp_auth_blob(&spnego_blob, | |
1444 | &spnego_blob_len, | |
1445 | 0); | |
1446 | if (rc) | |
1447 | return -ENOMEM; | |
1448 | ||
1449 | sz = le16_to_cpu(rsp->SecurityBufferOffset); | |
64b39f4a | 1450 | memcpy((char *)&rsp->hdr.ProtocolId + sz, spnego_blob, spnego_blob_len); |
e2f34481 NJ |
1451 | rsp->SecurityBufferLength = cpu_to_le16(spnego_blob_len); |
1452 | kfree(spnego_blob); | |
e2f34481 NJ |
1453 | } |
1454 | ||
1455 | user = session_user(conn, req); | |
1456 | if (!user) { | |
1457 | ksmbd_debug(SMB, "Unknown user name or an error\n"); | |
58090b17 | 1458 | return -EPERM; |
e2f34481 NJ |
1459 | } |
1460 | ||
1461 | /* Check for previous session */ | |
1462 | prev_id = le64_to_cpu(req->PreviousSessionId); | |
1463 | if (prev_id && prev_id != sess->id) | |
e4d3e6b5 | 1464 | destroy_previous_session(conn, user, prev_id); |
e2f34481 NJ |
1465 | |
1466 | if (sess->state == SMB2_SESSION_VALID) { | |
1467 | /* | |
1468 | * Reuse session if anonymous try to connect | |
1469 | * on reauthetication. | |
1470 | */ | |
3353ab2d | 1471 | if (conn->binding == false && ksmbd_anonymous_user(user)) { |
e2f34481 NJ |
1472 | ksmbd_free_user(user); |
1473 | return 0; | |
1474 | } | |
a58b45a4 NJ |
1475 | |
1476 | if (!ksmbd_compare_user(sess->user, user)) { | |
1477 | ksmbd_free_user(user); | |
1478 | return -EPERM; | |
1479 | } | |
1480 | ksmbd_free_user(user); | |
1481 | } else { | |
1482 | sess->user = user; | |
e2f34481 NJ |
1483 | } |
1484 | ||
3353ab2d | 1485 | if (conn->binding == false && user_guest(sess->user)) { |
e2f34481 NJ |
1486 | rsp->SessionFlags = SMB2_SESSION_FLAG_IS_GUEST_LE; |
1487 | } else { | |
1488 | struct authenticate_message *authblob; | |
1489 | ||
1490 | authblob = user_authblob(conn, req); | |
92e47016 NJ |
1491 | if (conn->use_spnego && conn->mechToken) |
1492 | sz = conn->mechTokenLen; | |
1493 | else | |
1494 | sz = le16_to_cpu(req->SecurityBufferLength); | |
ce53d365 | 1495 | rc = ksmbd_decode_ntlmssp_auth_blob(authblob, sz, conn, sess); |
e2f34481 NJ |
1496 | if (rc) { |
1497 | set_user_flag(sess->user, KSMBD_USER_FLAG_BAD_PASSWORD); | |
1498 | ksmbd_debug(SMB, "authentication failed\n"); | |
58090b17 | 1499 | return -EPERM; |
e2f34481 | 1500 | } |
ac090d9c | 1501 | } |
e2f34481 | 1502 | |
ac090d9c NJ |
1503 | /* |
1504 | * If session state is SMB2_SESSION_VALID, We can assume | |
1505 | * that it is reauthentication. And the user/password | |
1506 | * has been verified, so return it here. | |
1507 | */ | |
1508 | if (sess->state == SMB2_SESSION_VALID) { | |
1509 | if (conn->binding) | |
1510 | goto binding_session; | |
1511 | return 0; | |
1512 | } | |
e2f34481 | 1513 | |
ac090d9c NJ |
1514 | if ((rsp->SessionFlags != SMB2_SESSION_FLAG_IS_GUEST_LE && |
1515 | (conn->sign || server_conf.enforced_signing)) || | |
1516 | (req->SecurityMode & SMB2_NEGOTIATE_SIGNING_REQUIRED)) | |
1517 | sess->sign = true; | |
1518 | ||
1519 | if (smb3_encryption_negotiated(conn) && | |
1520 | !(req->Flags & SMB2_SESSION_REQ_FLAG_BINDING)) { | |
af7c39d9 | 1521 | rc = conn->ops->generate_encryptionkey(conn, sess); |
ac090d9c NJ |
1522 | if (rc) { |
1523 | ksmbd_debug(SMB, | |
1524 | "SMB3 encryption key generation failed\n"); | |
1525 | return -EINVAL; | |
e2f34481 | 1526 | } |
ac090d9c | 1527 | sess->enc = true; |
37ba7b00 NJ |
1528 | if (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB2_ENCRYPTION) |
1529 | rsp->SessionFlags = SMB2_SESSION_FLAG_ENCRYPT_DATA_LE; | |
ac090d9c NJ |
1530 | /* |
1531 | * signing is disable if encryption is enable | |
1532 | * on this session | |
1533 | */ | |
1534 | sess->sign = false; | |
e2f34481 NJ |
1535 | } |
1536 | ||
f5a544e3 | 1537 | binding_session: |
e2f34481 | 1538 | if (conn->dialect >= SMB30_PROT_ID) { |
f5a544e3 | 1539 | chann = lookup_chann_list(sess, conn); |
e2f34481 NJ |
1540 | if (!chann) { |
1541 | chann = kmalloc(sizeof(struct channel), GFP_KERNEL); | |
1542 | if (!chann) | |
1543 | return -ENOMEM; | |
1544 | ||
1545 | chann->conn = conn; | |
1d9c4172 | 1546 | xa_store(&sess->ksmbd_chann_list, (long)conn, chann, GFP_KERNEL); |
e2f34481 NJ |
1547 | } |
1548 | } | |
1549 | ||
1550 | if (conn->ops->generate_signingkey) { | |
f5a544e3 | 1551 | rc = conn->ops->generate_signingkey(sess, conn); |
e2f34481 | 1552 | if (rc) { |
64b39f4a | 1553 | ksmbd_debug(SMB, "SMB3 signing key generation failed\n"); |
58090b17 | 1554 | return -EINVAL; |
e2f34481 NJ |
1555 | } |
1556 | } | |
1557 | ||
51a13873 NJ |
1558 | if (!ksmbd_conn_lookup_dialect(conn)) { |
1559 | pr_err("fail to verify the dialect\n"); | |
1560 | return -ENOENT; | |
e2f34481 NJ |
1561 | } |
1562 | return 0; | |
1563 | } | |
1564 | ||
1565 | #ifdef CONFIG_SMB_SERVER_KERBEROS5 | |
98422bdd NJ |
1566 | static int krb5_authenticate(struct ksmbd_work *work, |
1567 | struct smb2_sess_setup_req *req, | |
1568 | struct smb2_sess_setup_rsp *rsp) | |
e2f34481 | 1569 | { |
e2f34481 NJ |
1570 | struct ksmbd_conn *conn = work->conn; |
1571 | struct ksmbd_session *sess = work->sess; | |
1572 | char *in_blob, *out_blob; | |
1573 | struct channel *chann = NULL; | |
64b39f4a | 1574 | u64 prev_sess_id; |
e2f34481 NJ |
1575 | int in_len, out_len; |
1576 | int retval; | |
1577 | ||
1578 | in_blob = (char *)&req->hdr.ProtocolId + | |
1579 | le16_to_cpu(req->SecurityBufferOffset); | |
1580 | in_len = le16_to_cpu(req->SecurityBufferLength); | |
1581 | out_blob = (char *)&rsp->hdr.ProtocolId + | |
1582 | le16_to_cpu(rsp->SecurityBufferOffset); | |
1583 | out_len = work->response_sz - | |
cb451720 | 1584 | (le16_to_cpu(rsp->SecurityBufferOffset) + 4); |
e2f34481 NJ |
1585 | |
1586 | /* Check previous session */ | |
1587 | prev_sess_id = le64_to_cpu(req->PreviousSessionId); | |
1588 | if (prev_sess_id && prev_sess_id != sess->id) | |
e4d3e6b5 | 1589 | destroy_previous_session(conn, sess->user, prev_sess_id); |
e2f34481 NJ |
1590 | |
1591 | if (sess->state == SMB2_SESSION_VALID) | |
1592 | ksmbd_free_user(sess->user); | |
1593 | ||
1594 | retval = ksmbd_krb5_authenticate(sess, in_blob, in_len, | |
070fb21e | 1595 | out_blob, &out_len); |
e2f34481 NJ |
1596 | if (retval) { |
1597 | ksmbd_debug(SMB, "krb5 authentication failed\n"); | |
58090b17 | 1598 | return -EINVAL; |
e2f34481 NJ |
1599 | } |
1600 | rsp->SecurityBufferLength = cpu_to_le16(out_len); | |
e2f34481 NJ |
1601 | |
1602 | if ((conn->sign || server_conf.enforced_signing) || | |
64b39f4a | 1603 | (req->SecurityMode & SMB2_NEGOTIATE_SIGNING_REQUIRED)) |
e2f34481 NJ |
1604 | sess->sign = true; |
1605 | ||
83912d6d | 1606 | if (smb3_encryption_negotiated(conn)) { |
af7c39d9 | 1607 | retval = conn->ops->generate_encryptionkey(conn, sess); |
e2f34481 NJ |
1608 | if (retval) { |
1609 | ksmbd_debug(SMB, | |
070fb21e | 1610 | "SMB3 encryption key generation failed\n"); |
58090b17 | 1611 | return -EINVAL; |
e2f34481 NJ |
1612 | } |
1613 | sess->enc = true; | |
37ba7b00 NJ |
1614 | if (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB2_ENCRYPTION) |
1615 | rsp->SessionFlags = SMB2_SESSION_FLAG_ENCRYPT_DATA_LE; | |
e2f34481 NJ |
1616 | sess->sign = false; |
1617 | } | |
1618 | ||
1619 | if (conn->dialect >= SMB30_PROT_ID) { | |
f5a544e3 | 1620 | chann = lookup_chann_list(sess, conn); |
e2f34481 NJ |
1621 | if (!chann) { |
1622 | chann = kmalloc(sizeof(struct channel), GFP_KERNEL); | |
1623 | if (!chann) | |
1624 | return -ENOMEM; | |
1625 | ||
1626 | chann->conn = conn; | |
1d9c4172 | 1627 | xa_store(&sess->ksmbd_chann_list, (long)conn, chann, GFP_KERNEL); |
e2f34481 NJ |
1628 | } |
1629 | } | |
1630 | ||
1631 | if (conn->ops->generate_signingkey) { | |
f5a544e3 | 1632 | retval = conn->ops->generate_signingkey(sess, conn); |
e2f34481 | 1633 | if (retval) { |
64b39f4a | 1634 | ksmbd_debug(SMB, "SMB3 signing key generation failed\n"); |
58090b17 | 1635 | return -EINVAL; |
e2f34481 NJ |
1636 | } |
1637 | } | |
1638 | ||
51a13873 NJ |
1639 | if (!ksmbd_conn_lookup_dialect(conn)) { |
1640 | pr_err("fail to verify the dialect\n"); | |
1641 | return -ENOENT; | |
e2f34481 NJ |
1642 | } |
1643 | return 0; | |
1644 | } | |
1645 | #else | |
98422bdd NJ |
1646 | static int krb5_authenticate(struct ksmbd_work *work, |
1647 | struct smb2_sess_setup_req *req, | |
1648 | struct smb2_sess_setup_rsp *rsp) | |
e2f34481 NJ |
1649 | { |
1650 | return -EOPNOTSUPP; | |
1651 | } | |
1652 | #endif | |
1653 | ||
1654 | int smb2_sess_setup(struct ksmbd_work *work) | |
1655 | { | |
1656 | struct ksmbd_conn *conn = work->conn; | |
98422bdd NJ |
1657 | struct smb2_sess_setup_req *req; |
1658 | struct smb2_sess_setup_rsp *rsp; | |
e2f34481 NJ |
1659 | struct ksmbd_session *sess; |
1660 | struct negotiate_message *negblob; | |
0d994cd4 | 1661 | unsigned int negblob_len, negblob_off; |
e2f34481 NJ |
1662 | int rc = 0; |
1663 | ||
1664 | ksmbd_debug(SMB, "Received request for session setup\n"); | |
1665 | ||
98422bdd NJ |
1666 | WORK_BUFFERS(work, req, rsp); |
1667 | ||
e2f34481 NJ |
1668 | rsp->StructureSize = cpu_to_le16(9); |
1669 | rsp->SessionFlags = 0; | |
1670 | rsp->SecurityBufferOffset = cpu_to_le16(72); | |
1671 | rsp->SecurityBufferLength = 0; | |
e2f34481 | 1672 | |
f5c779b7 | 1673 | ksmbd_conn_lock(conn); |
e2f34481 NJ |
1674 | if (!req->hdr.SessionId) { |
1675 | sess = ksmbd_smb2_session_create(); | |
1676 | if (!sess) { | |
1677 | rc = -ENOMEM; | |
1678 | goto out_err; | |
1679 | } | |
1680 | rsp->hdr.SessionId = cpu_to_le64(sess->id); | |
e4d3e6b5 NJ |
1681 | rc = ksmbd_session_register(conn, sess); |
1682 | if (rc) | |
1683 | goto out_err; | |
f5a544e3 NJ |
1684 | } else if (conn->dialect >= SMB30_PROT_ID && |
1685 | (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB3_MULTICHANNEL) && | |
1686 | req->Flags & SMB2_SESSION_REQ_FLAG_BINDING) { | |
1687 | u64 sess_id = le64_to_cpu(req->hdr.SessionId); | |
1688 | ||
1689 | sess = ksmbd_session_lookup_slowpath(sess_id); | |
1690 | if (!sess) { | |
1691 | rc = -ENOENT; | |
1692 | goto out_err; | |
1693 | } | |
1694 | ||
af7c39d9 | 1695 | if (conn->dialect != sess->dialect) { |
f5a544e3 NJ |
1696 | rc = -EINVAL; |
1697 | goto out_err; | |
1698 | } | |
1699 | ||
1700 | if (!(req->hdr.Flags & SMB2_FLAGS_SIGNED)) { | |
1701 | rc = -EINVAL; | |
1702 | goto out_err; | |
1703 | } | |
1704 | ||
af7c39d9 | 1705 | if (strncmp(conn->ClientGUID, sess->ClientGUID, |
f5a544e3 NJ |
1706 | SMB2_CLIENT_GUID_SIZE)) { |
1707 | rc = -ENOENT; | |
1708 | goto out_err; | |
1709 | } | |
1710 | ||
1711 | if (sess->state == SMB2_SESSION_IN_PROGRESS) { | |
1712 | rc = -EACCES; | |
1713 | goto out_err; | |
1714 | } | |
1715 | ||
1716 | if (sess->state == SMB2_SESSION_EXPIRED) { | |
1717 | rc = -EFAULT; | |
1718 | goto out_err; | |
1719 | } | |
1720 | ||
f5c779b7 NJ |
1721 | if (ksmbd_conn_need_reconnect(conn)) { |
1722 | rc = -EFAULT; | |
1723 | sess = NULL; | |
1724 | goto out_err; | |
1725 | } | |
1726 | ||
f5a544e3 NJ |
1727 | if (ksmbd_session_lookup(conn, sess_id)) { |
1728 | rc = -EACCES; | |
1729 | goto out_err; | |
1730 | } | |
1731 | ||
3353ab2d NJ |
1732 | if (user_guest(sess->user)) { |
1733 | rc = -EOPNOTSUPP; | |
1734 | goto out_err; | |
1735 | } | |
1736 | ||
f5a544e3 NJ |
1737 | conn->binding = true; |
1738 | } else if ((conn->dialect < SMB30_PROT_ID || | |
1739 | server_conf.flags & KSMBD_GLOBAL_FLAG_SMB3_MULTICHANNEL) && | |
1740 | (req->Flags & SMB2_SESSION_REQ_FLAG_BINDING)) { | |
4951a84f | 1741 | sess = NULL; |
f5a544e3 NJ |
1742 | rc = -EACCES; |
1743 | goto out_err; | |
e2f34481 NJ |
1744 | } else { |
1745 | sess = ksmbd_session_lookup(conn, | |
070fb21e | 1746 | le64_to_cpu(req->hdr.SessionId)); |
e2f34481 NJ |
1747 | if (!sess) { |
1748 | rc = -ENOENT; | |
e2f34481 NJ |
1749 | goto out_err; |
1750 | } | |
f5c779b7 NJ |
1751 | |
1752 | if (sess->state == SMB2_SESSION_EXPIRED) { | |
1753 | rc = -EFAULT; | |
1754 | goto out_err; | |
1755 | } | |
1756 | ||
1757 | if (ksmbd_conn_need_reconnect(conn)) { | |
1758 | rc = -EFAULT; | |
1759 | sess = NULL; | |
1760 | goto out_err; | |
1761 | } | |
e2f34481 NJ |
1762 | } |
1763 | work->sess = sess; | |
1764 | ||
0d994cd4 MM |
1765 | negblob_off = le16_to_cpu(req->SecurityBufferOffset); |
1766 | negblob_len = le16_to_cpu(req->SecurityBufferLength); | |
92e47016 | 1767 | if (negblob_off < offsetof(struct smb2_sess_setup_req, Buffer)) { |
f8fbfd85 CJ |
1768 | rc = -EINVAL; |
1769 | goto out_err; | |
1770 | } | |
0d994cd4 | 1771 | |
e2f34481 | 1772 | negblob = (struct negotiate_message *)((char *)&req->hdr.ProtocolId + |
0d994cd4 | 1773 | negblob_off); |
e2f34481 | 1774 | |
0d994cd4 | 1775 | if (decode_negotiation_token(conn, negblob, negblob_len) == 0) { |
92e47016 | 1776 | if (conn->mechToken) { |
e2f34481 | 1777 | negblob = (struct negotiate_message *)conn->mechToken; |
92e47016 NJ |
1778 | negblob_len = conn->mechTokenLen; |
1779 | } | |
1780 | } | |
1781 | ||
1782 | if (negblob_len < offsetof(struct negotiate_message, NegotiateFlags)) { | |
1783 | rc = -EINVAL; | |
1784 | goto out_err; | |
e2f34481 NJ |
1785 | } |
1786 | ||
1787 | if (server_conf.auth_mechs & conn->auth_mechs) { | |
f5a544e3 NJ |
1788 | rc = generate_preauth_hash(work); |
1789 | if (rc) | |
1790 | goto out_err; | |
1791 | ||
e2f34481 NJ |
1792 | if (conn->preferred_auth_mech & |
1793 | (KSMBD_AUTH_KRB5 | KSMBD_AUTH_MSKRB5)) { | |
98422bdd | 1794 | rc = krb5_authenticate(work, req, rsp); |
e2f34481 | 1795 | if (rc) { |
f5a544e3 | 1796 | rc = -EINVAL; |
e2f34481 NJ |
1797 | goto out_err; |
1798 | } | |
1799 | ||
f5c779b7 NJ |
1800 | if (!ksmbd_conn_need_reconnect(conn)) { |
1801 | ksmbd_conn_set_good(conn); | |
1802 | sess->state = SMB2_SESSION_VALID; | |
1803 | } | |
822bc8ea | 1804 | kfree(sess->Preauth_HashValue); |
e2f34481 NJ |
1805 | sess->Preauth_HashValue = NULL; |
1806 | } else if (conn->preferred_auth_mech == KSMBD_AUTH_NTLMSSP) { | |
e2f34481 | 1807 | if (negblob->MessageType == NtLmNegotiate) { |
98422bdd | 1808 | rc = ntlm_negotiate(work, negblob, negblob_len, rsp); |
e2f34481 NJ |
1809 | if (rc) |
1810 | goto out_err; | |
1811 | rsp->hdr.Status = | |
1812 | STATUS_MORE_PROCESSING_REQUIRED; | |
e2f34481 | 1813 | } else if (negblob->MessageType == NtLmAuthenticate) { |
98422bdd | 1814 | rc = ntlm_authenticate(work, req, rsp); |
e2f34481 NJ |
1815 | if (rc) |
1816 | goto out_err; | |
1817 | ||
f5c779b7 NJ |
1818 | if (!ksmbd_conn_need_reconnect(conn)) { |
1819 | ksmbd_conn_set_good(conn); | |
1820 | sess->state = SMB2_SESSION_VALID; | |
1821 | } | |
f5a544e3 NJ |
1822 | if (conn->binding) { |
1823 | struct preauth_session *preauth_sess; | |
1824 | ||
1825 | preauth_sess = | |
1826 | ksmbd_preauth_session_lookup(conn, sess->id); | |
1827 | if (preauth_sess) { | |
1828 | list_del(&preauth_sess->preauth_entry); | |
1829 | kfree(preauth_sess); | |
1830 | } | |
1831 | } | |
822bc8ea | 1832 | kfree(sess->Preauth_HashValue); |
e2f34481 | 1833 | sess->Preauth_HashValue = NULL; |
6d7cb549 NJ |
1834 | } else { |
1835 | pr_info_ratelimited("Unknown NTLMSSP message type : 0x%x\n", | |
1836 | le32_to_cpu(negblob->MessageType)); | |
1837 | rc = -EINVAL; | |
e2f34481 NJ |
1838 | } |
1839 | } else { | |
1840 | /* TODO: need one more negotiation */ | |
bde1694a | 1841 | pr_err("Not support the preferred authentication\n"); |
e2f34481 | 1842 | rc = -EINVAL; |
e2f34481 NJ |
1843 | } |
1844 | } else { | |
bde1694a | 1845 | pr_err("Not support authentication\n"); |
e2f34481 | 1846 | rc = -EINVAL; |
e2f34481 NJ |
1847 | } |
1848 | ||
1849 | out_err: | |
f5a544e3 NJ |
1850 | if (rc == -EINVAL) |
1851 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; | |
1852 | else if (rc == -ENOENT) | |
1853 | rsp->hdr.Status = STATUS_USER_SESSION_DELETED; | |
1854 | else if (rc == -EACCES) | |
1855 | rsp->hdr.Status = STATUS_REQUEST_NOT_ACCEPTED; | |
1856 | else if (rc == -EFAULT) | |
1857 | rsp->hdr.Status = STATUS_NETWORK_SESSION_EXPIRED; | |
58090b17 NJ |
1858 | else if (rc == -ENOMEM) |
1859 | rsp->hdr.Status = STATUS_INSUFFICIENT_RESOURCES; | |
3353ab2d NJ |
1860 | else if (rc == -EOPNOTSUPP) |
1861 | rsp->hdr.Status = STATUS_NOT_SUPPORTED; | |
f5a544e3 NJ |
1862 | else if (rc) |
1863 | rsp->hdr.Status = STATUS_LOGON_FAILURE; | |
1864 | ||
e2f34481 NJ |
1865 | if (conn->use_spnego && conn->mechToken) { |
1866 | kfree(conn->mechToken); | |
1867 | conn->mechToken = NULL; | |
1868 | } | |
1869 | ||
621be84a NJ |
1870 | if (rc < 0) { |
1871 | /* | |
1872 | * SecurityBufferOffset should be set to zero | |
1873 | * in session setup error response. | |
1874 | */ | |
1875 | rsp->SecurityBufferOffset = 0; | |
1876 | ||
1877 | if (sess) { | |
1878 | bool try_delay = false; | |
1879 | ||
1880 | /* | |
1881 | * To avoid dictionary attacks (repeated session setups rapidly sent) to | |
1882 | * connect to server, ksmbd make a delay of a 5 seconds on session setup | |
1883 | * failure to make it harder to send enough random connection requests | |
1884 | * to break into a server. | |
1885 | */ | |
1886 | if (sess->user && sess->user->flags & KSMBD_USER_FLAG_DELAY_SESSION) | |
1887 | try_delay = true; | |
1888 | ||
ea174a91 | 1889 | sess->last_active = jiffies; |
f5c779b7 | 1890 | sess->state = SMB2_SESSION_EXPIRED; |
b096d97f NJ |
1891 | if (try_delay) { |
1892 | ksmbd_conn_set_need_reconnect(conn); | |
621be84a | 1893 | ssleep(5); |
b096d97f NJ |
1894 | ksmbd_conn_set_need_negotiate(conn); |
1895 | } | |
621be84a | 1896 | } |
0e2378ea | 1897 | smb2_set_err_rsp(work); |
e2b76ab8 NJ |
1898 | } else { |
1899 | unsigned int iov_len; | |
1900 | ||
1901 | if (rsp->SecurityBufferLength) | |
1902 | iov_len = offsetof(struct smb2_sess_setup_rsp, Buffer) + | |
1903 | le16_to_cpu(rsp->SecurityBufferLength); | |
1904 | else | |
1905 | iov_len = sizeof(struct smb2_sess_setup_rsp); | |
1906 | rc = ksmbd_iov_pin_rsp(work, rsp, iov_len); | |
1907 | if (rc) | |
1908 | rsp->hdr.Status = STATUS_INSUFFICIENT_RESOURCES; | |
e2f34481 NJ |
1909 | } |
1910 | ||
f5c779b7 | 1911 | ksmbd_conn_unlock(conn); |
e2f34481 NJ |
1912 | return rc; |
1913 | } | |
1914 | ||
1915 | /** | |
1916 | * smb2_tree_connect() - handler for smb2 tree connect command | |
1917 | * @work: smb work containing smb request buffer | |
1918 | * | |
1919 | * Return: 0 on success, otherwise error | |
1920 | */ | |
1921 | int smb2_tree_connect(struct ksmbd_work *work) | |
1922 | { | |
1923 | struct ksmbd_conn *conn = work->conn; | |
7b7d709e NJ |
1924 | struct smb2_tree_connect_req *req; |
1925 | struct smb2_tree_connect_rsp *rsp; | |
e2f34481 NJ |
1926 | struct ksmbd_session *sess = work->sess; |
1927 | char *treename = NULL, *name = NULL; | |
1928 | struct ksmbd_tree_conn_status status; | |
1929 | struct ksmbd_share_config *share; | |
1930 | int rc = -EINVAL; | |
1931 | ||
7b7d709e NJ |
1932 | WORK_BUFFERS(work, req, rsp); |
1933 | ||
c6cd2e8d | 1934 | treename = smb_strndup_from_utf16((char *)req + le16_to_cpu(req->PathOffset), |
070fb21e NJ |
1935 | le16_to_cpu(req->PathLength), true, |
1936 | conn->local_nls); | |
e2f34481 | 1937 | if (IS_ERR(treename)) { |
bde1694a | 1938 | pr_err("treename is NULL\n"); |
e2f34481 NJ |
1939 | status.ret = KSMBD_TREE_CONN_STATUS_ERROR; |
1940 | goto out_err1; | |
1941 | } | |
1942 | ||
16b5f54e | 1943 | name = ksmbd_extract_sharename(conn->um, treename); |
e2f34481 NJ |
1944 | if (IS_ERR(name)) { |
1945 | status.ret = KSMBD_TREE_CONN_STATUS_ERROR; | |
1946 | goto out_err1; | |
1947 | } | |
1948 | ||
1949 | ksmbd_debug(SMB, "tree connect request for tree %s treename %s\n", | |
070fb21e | 1950 | name, treename); |
e2f34481 | 1951 | |
af7c39d9 | 1952 | status = ksmbd_tree_conn_connect(conn, sess, name); |
e2f34481 NJ |
1953 | if (status.ret == KSMBD_TREE_CONN_STATUS_OK) |
1954 | rsp->hdr.Id.SyncId.TreeId = cpu_to_le32(status.tree_conn->id); | |
1955 | else | |
1956 | goto out_err1; | |
1957 | ||
1958 | share = status.tree_conn->share_conf; | |
1959 | if (test_share_config_flag(share, KSMBD_SHARE_FLAG_PIPE)) { | |
1960 | ksmbd_debug(SMB, "IPC share path request\n"); | |
1961 | rsp->ShareType = SMB2_SHARE_TYPE_PIPE; | |
1962 | rsp->MaximalAccess = FILE_READ_DATA_LE | FILE_READ_EA_LE | | |
1963 | FILE_EXECUTE_LE | FILE_READ_ATTRIBUTES_LE | | |
1964 | FILE_DELETE_LE | FILE_READ_CONTROL_LE | | |
1965 | FILE_WRITE_DAC_LE | FILE_WRITE_OWNER_LE | | |
1966 | FILE_SYNCHRONIZE_LE; | |
1967 | } else { | |
1968 | rsp->ShareType = SMB2_SHARE_TYPE_DISK; | |
1969 | rsp->MaximalAccess = FILE_READ_DATA_LE | FILE_READ_EA_LE | | |
1970 | FILE_EXECUTE_LE | FILE_READ_ATTRIBUTES_LE; | |
1971 | if (test_tree_conn_flag(status.tree_conn, | |
1972 | KSMBD_TREE_CONN_FLAG_WRITABLE)) { | |
1973 | rsp->MaximalAccess |= FILE_WRITE_DATA_LE | | |
1974 | FILE_APPEND_DATA_LE | FILE_WRITE_EA_LE | | |
3aefd54d WJ |
1975 | FILE_DELETE_LE | FILE_WRITE_ATTRIBUTES_LE | |
1976 | FILE_DELETE_CHILD_LE | FILE_READ_CONTROL_LE | | |
1977 | FILE_WRITE_DAC_LE | FILE_WRITE_OWNER_LE | | |
1978 | FILE_SYNCHRONIZE_LE; | |
e2f34481 NJ |
1979 | } |
1980 | } | |
1981 | ||
1982 | status.tree_conn->maximal_access = le32_to_cpu(rsp->MaximalAccess); | |
1983 | if (conn->posix_ext_supported) | |
1984 | status.tree_conn->posix_extensions = true; | |
1985 | ||
33b235a6 NJ |
1986 | write_lock(&sess->tree_conns_lock); |
1987 | status.tree_conn->t_state = TREE_CONNECTED; | |
1988 | write_unlock(&sess->tree_conns_lock); | |
e2f34481 | 1989 | rsp->StructureSize = cpu_to_le16(16); |
cdfb2fef | 1990 | out_err1: |
e9d8c2f9 NJ |
1991 | if (server_conf.flags & KSMBD_GLOBAL_FLAG_DURABLE_HANDLE && |
1992 | test_share_config_flag(share, | |
1993 | KSMBD_SHARE_FLAG_CONTINUOUS_AVAILABILITY)) | |
1994 | rsp->Capabilities = SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY; | |
1995 | else | |
1996 | rsp->Capabilities = 0; | |
e2f34481 NJ |
1997 | rsp->Reserved = 0; |
1998 | /* default manual caching */ | |
1999 | rsp->ShareFlags = SMB2_SHAREFLAG_MANUAL_CACHING; | |
e2f34481 | 2000 | |
e2b76ab8 NJ |
2001 | rc = ksmbd_iov_pin_rsp(work, rsp, sizeof(struct smb2_tree_connect_rsp)); |
2002 | if (rc) | |
2003 | status.ret = KSMBD_TREE_CONN_STATUS_NOMEM; | |
2004 | ||
e2f34481 NJ |
2005 | if (!IS_ERR(treename)) |
2006 | kfree(treename); | |
2007 | if (!IS_ERR(name)) | |
2008 | kfree(name); | |
2009 | ||
2010 | switch (status.ret) { | |
2011 | case KSMBD_TREE_CONN_STATUS_OK: | |
2012 | rsp->hdr.Status = STATUS_SUCCESS; | |
2013 | rc = 0; | |
2014 | break; | |
4963d74f | 2015 | case -ESTALE: |
fe54833d | 2016 | case -ENOENT: |
e2f34481 | 2017 | case KSMBD_TREE_CONN_STATUS_NO_SHARE: |
fe54833d | 2018 | rsp->hdr.Status = STATUS_BAD_NETWORK_NAME; |
e2f34481 NJ |
2019 | break; |
2020 | case -ENOMEM: | |
2021 | case KSMBD_TREE_CONN_STATUS_NOMEM: | |
2022 | rsp->hdr.Status = STATUS_NO_MEMORY; | |
2023 | break; | |
2024 | case KSMBD_TREE_CONN_STATUS_ERROR: | |
2025 | case KSMBD_TREE_CONN_STATUS_TOO_MANY_CONNS: | |
2026 | case KSMBD_TREE_CONN_STATUS_TOO_MANY_SESSIONS: | |
2027 | rsp->hdr.Status = STATUS_ACCESS_DENIED; | |
2028 | break; | |
2029 | case -EINVAL: | |
2030 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; | |
2031 | break; | |
2032 | default: | |
2033 | rsp->hdr.Status = STATUS_ACCESS_DENIED; | |
2034 | } | |
2035 | ||
cdfb2fef MM |
2036 | if (status.ret != KSMBD_TREE_CONN_STATUS_OK) |
2037 | smb2_set_err_rsp(work); | |
2038 | ||
e2f34481 NJ |
2039 | return rc; |
2040 | } | |
2041 | ||
2042 | /** | |
2043 | * smb2_create_open_flags() - convert smb open flags to unix open flags | |
2044 | * @file_present: is file already present | |
2045 | * @access: file access flags | |
2046 | * @disposition: file disposition flags | |
6c5e36d1 | 2047 | * @may_flags: set with MAY_ flags |
e2f34481 NJ |
2048 | * |
2049 | * Return: file open flags | |
2050 | */ | |
2051 | static int smb2_create_open_flags(bool file_present, __le32 access, | |
6c5e36d1 HL |
2052 | __le32 disposition, |
2053 | int *may_flags) | |
e2f34481 NJ |
2054 | { |
2055 | int oflags = O_NONBLOCK | O_LARGEFILE; | |
2056 | ||
2057 | if (access & FILE_READ_DESIRED_ACCESS_LE && | |
6c5e36d1 | 2058 | access & FILE_WRITE_DESIRE_ACCESS_LE) { |
e2f34481 | 2059 | oflags |= O_RDWR; |
6c5e36d1 HL |
2060 | *may_flags = MAY_OPEN | MAY_READ | MAY_WRITE; |
2061 | } else if (access & FILE_WRITE_DESIRE_ACCESS_LE) { | |
e2f34481 | 2062 | oflags |= O_WRONLY; |
6c5e36d1 HL |
2063 | *may_flags = MAY_OPEN | MAY_WRITE; |
2064 | } else { | |
e2f34481 | 2065 | oflags |= O_RDONLY; |
6c5e36d1 HL |
2066 | *may_flags = MAY_OPEN | MAY_READ; |
2067 | } | |
e2f34481 NJ |
2068 | |
2069 | if (access == FILE_READ_ATTRIBUTES_LE) | |
2070 | oflags |= O_PATH; | |
2071 | ||
2072 | if (file_present) { | |
2073 | switch (disposition & FILE_CREATE_MASK_LE) { | |
2074 | case FILE_OPEN_LE: | |
2075 | case FILE_CREATE_LE: | |
2076 | break; | |
2077 | case FILE_SUPERSEDE_LE: | |
2078 | case FILE_OVERWRITE_LE: | |
2079 | case FILE_OVERWRITE_IF_LE: | |
2080 | oflags |= O_TRUNC; | |
2081 | break; | |
2082 | default: | |
2083 | break; | |
2084 | } | |
2085 | } else { | |
2086 | switch (disposition & FILE_CREATE_MASK_LE) { | |
2087 | case FILE_SUPERSEDE_LE: | |
2088 | case FILE_CREATE_LE: | |
2089 | case FILE_OPEN_IF_LE: | |
2090 | case FILE_OVERWRITE_IF_LE: | |
2091 | oflags |= O_CREAT; | |
2092 | break; | |
2093 | case FILE_OPEN_LE: | |
2094 | case FILE_OVERWRITE_LE: | |
2095 | oflags &= ~O_CREAT; | |
2096 | break; | |
2097 | default: | |
2098 | break; | |
2099 | } | |
2100 | } | |
6c5e36d1 | 2101 | |
e2f34481 NJ |
2102 | return oflags; |
2103 | } | |
2104 | ||
2105 | /** | |
2106 | * smb2_tree_disconnect() - handler for smb tree connect request | |
2107 | * @work: smb work containing request buffer | |
2108 | * | |
2109 | * Return: 0 | |
2110 | */ | |
2111 | int smb2_tree_disconnect(struct ksmbd_work *work) | |
2112 | { | |
7b7d709e NJ |
2113 | struct smb2_tree_disconnect_rsp *rsp; |
2114 | struct smb2_tree_disconnect_req *req; | |
e2f34481 NJ |
2115 | struct ksmbd_session *sess = work->sess; |
2116 | struct ksmbd_tree_connect *tcon = work->tcon; | |
e2b76ab8 | 2117 | int err; |
e2f34481 | 2118 | |
7b7d709e NJ |
2119 | WORK_BUFFERS(work, req, rsp); |
2120 | ||
e2f34481 NJ |
2121 | ksmbd_debug(SMB, "request\n"); |
2122 | ||
33b235a6 NJ |
2123 | if (!tcon) { |
2124 | ksmbd_debug(SMB, "Invalid tid %d\n", req->hdr.Id.SyncId.TreeId); | |
2125 | ||
2126 | rsp->hdr.Status = STATUS_NETWORK_NAME_DELETED; | |
2127 | err = -ENOENT; | |
2128 | goto err_out; | |
2129 | } | |
2130 | ||
2131 | ksmbd_close_tree_conn_fds(work); | |
2132 | ||
2133 | write_lock(&sess->tree_conns_lock); | |
2134 | if (tcon->t_state == TREE_DISCONNECTED) { | |
2135 | write_unlock(&sess->tree_conns_lock); | |
2136 | rsp->hdr.Status = STATUS_NETWORK_NAME_DELETED; | |
2137 | err = -ENOENT; | |
2138 | goto err_out; | |
2139 | } | |
2140 | ||
2141 | WARN_ON_ONCE(atomic_dec_and_test(&tcon->refcount)); | |
2142 | tcon->t_state = TREE_DISCONNECTED; | |
2143 | write_unlock(&sess->tree_conns_lock); | |
2144 | ||
2145 | err = ksmbd_tree_conn_disconnect(sess, tcon); | |
2146 | if (err) { | |
2147 | rsp->hdr.Status = STATUS_NETWORK_NAME_DELETED; | |
2148 | goto err_out; | |
2149 | } | |
2150 | ||
2151 | work->tcon = NULL; | |
2152 | ||
e2b76ab8 NJ |
2153 | rsp->StructureSize = cpu_to_le16(4); |
2154 | err = ksmbd_iov_pin_rsp(work, rsp, | |
2155 | sizeof(struct smb2_tree_disconnect_rsp)); | |
2156 | if (err) { | |
2157 | rsp->hdr.Status = STATUS_INSUFFICIENT_RESOURCES; | |
33b235a6 | 2158 | goto err_out; |
e2b76ab8 NJ |
2159 | } |
2160 | ||
33b235a6 | 2161 | return 0; |
30210947 | 2162 | |
33b235a6 NJ |
2163 | err_out: |
2164 | smb2_set_err_rsp(work); | |
2165 | return err; | |
e2f34481 | 2166 | |
e2f34481 NJ |
2167 | } |
2168 | ||
2169 | /** | |
2170 | * smb2_session_logoff() - handler for session log off request | |
2171 | * @work: smb work containing request buffer | |
2172 | * | |
2173 | * Return: 0 | |
2174 | */ | |
2175 | int smb2_session_logoff(struct ksmbd_work *work) | |
2176 | { | |
2177 | struct ksmbd_conn *conn = work->conn; | |
7b7d709e NJ |
2178 | struct smb2_logoff_req *req; |
2179 | struct smb2_logoff_rsp *rsp; | |
f5c779b7 | 2180 | struct ksmbd_session *sess; |
7b7d709e | 2181 | u64 sess_id; |
e2b76ab8 | 2182 | int err; |
7b7d709e NJ |
2183 | |
2184 | WORK_BUFFERS(work, req, rsp); | |
2185 | ||
e2b76ab8 NJ |
2186 | ksmbd_debug(SMB, "request\n"); |
2187 | ||
7ca9da7d NJ |
2188 | ksmbd_conn_lock(conn); |
2189 | if (!ksmbd_conn_good(conn)) { | |
2190 | ksmbd_conn_unlock(conn); | |
2191 | rsp->hdr.Status = STATUS_NETWORK_NAME_DELETED; | |
e2b76ab8 | 2192 | smb2_set_err_rsp(work); |
7ca9da7d | 2193 | return -ENOENT; |
e2b76ab8 | 2194 | } |
7ca9da7d | 2195 | sess_id = le64_to_cpu(req->hdr.SessionId); |
abcc506a | 2196 | ksmbd_all_conn_set_status(sess_id, KSMBD_SESS_NEED_RECONNECT); |
7ca9da7d NJ |
2197 | ksmbd_conn_unlock(conn); |
2198 | ||
e2f34481 | 2199 | ksmbd_close_session_fds(work); |
abcc506a | 2200 | ksmbd_conn_wait_idle(conn, sess_id); |
e2f34481 | 2201 | |
f5c779b7 NJ |
2202 | /* |
2203 | * Re-lookup session to validate if session is deleted | |
2204 | * while waiting request complete | |
2205 | */ | |
abcc506a | 2206 | sess = ksmbd_session_lookup_all(conn, sess_id); |
e2f34481 | 2207 | if (ksmbd_tree_conn_session_logoff(sess)) { |
e2f34481 NJ |
2208 | ksmbd_debug(SMB, "Invalid tid %d\n", req->hdr.Id.SyncId.TreeId); |
2209 | rsp->hdr.Status = STATUS_NETWORK_NAME_DELETED; | |
2210 | smb2_set_err_rsp(work); | |
e2b76ab8 | 2211 | return -ENOENT; |
e2f34481 NJ |
2212 | } |
2213 | ||
2214 | ksmbd_destroy_file_table(&sess->file_table); | |
2215 | sess->state = SMB2_SESSION_EXPIRED; | |
2216 | ||
2217 | ksmbd_free_user(sess->user); | |
2218 | sess->user = NULL; | |
abcc506a | 2219 | ksmbd_all_conn_set_status(sess_id, KSMBD_SESS_NEED_NEGOTIATE); |
7ca9da7d NJ |
2220 | |
2221 | rsp->StructureSize = cpu_to_le16(4); | |
2222 | err = ksmbd_iov_pin_rsp(work, rsp, sizeof(struct smb2_logoff_rsp)); | |
2223 | if (err) { | |
2224 | rsp->hdr.Status = STATUS_INSUFFICIENT_RESOURCES; | |
2225 | smb2_set_err_rsp(work); | |
2226 | return err; | |
2227 | } | |
e2f34481 NJ |
2228 | return 0; |
2229 | } | |
2230 | ||
2231 | /** | |
2232 | * create_smb2_pipe() - create IPC pipe | |
2233 | * @work: smb work containing request buffer | |
2234 | * | |
2235 | * Return: 0 on success, otherwise error | |
2236 | */ | |
2237 | static noinline int create_smb2_pipe(struct ksmbd_work *work) | |
2238 | { | |
7b7d709e NJ |
2239 | struct smb2_create_rsp *rsp; |
2240 | struct smb2_create_req *req; | |
e2f34481 NJ |
2241 | int id; |
2242 | int err; | |
2243 | char *name; | |
2244 | ||
7b7d709e NJ |
2245 | WORK_BUFFERS(work, req, rsp); |
2246 | ||
e2f34481 | 2247 | name = smb_strndup_from_utf16(req->Buffer, le16_to_cpu(req->NameLength), |
070fb21e | 2248 | 1, work->conn->local_nls); |
e2f34481 NJ |
2249 | if (IS_ERR(name)) { |
2250 | rsp->hdr.Status = STATUS_NO_MEMORY; | |
2251 | err = PTR_ERR(name); | |
2252 | goto out; | |
2253 | } | |
2254 | ||
2255 | id = ksmbd_session_rpc_open(work->sess, name); | |
79caa960 | 2256 | if (id < 0) { |
bde1694a | 2257 | pr_err("Unable to open RPC pipe: %d\n", id); |
79caa960 MM |
2258 | err = id; |
2259 | goto out; | |
2260 | } | |
e2f34481 | 2261 | |
79caa960 | 2262 | rsp->hdr.Status = STATUS_SUCCESS; |
e2f34481 NJ |
2263 | rsp->StructureSize = cpu_to_le16(89); |
2264 | rsp->OplockLevel = SMB2_OPLOCK_LEVEL_NONE; | |
26a2787d | 2265 | rsp->Flags = 0; |
e2f34481 NJ |
2266 | rsp->CreateAction = cpu_to_le32(FILE_OPENED); |
2267 | ||
2268 | rsp->CreationTime = cpu_to_le64(0); | |
2269 | rsp->LastAccessTime = cpu_to_le64(0); | |
2270 | rsp->ChangeTime = cpu_to_le64(0); | |
2271 | rsp->AllocationSize = cpu_to_le64(0); | |
2272 | rsp->EndofFile = cpu_to_le64(0); | |
26a2787d | 2273 | rsp->FileAttributes = FILE_ATTRIBUTE_NORMAL_LE; |
e2f34481 | 2274 | rsp->Reserved2 = 0; |
2d004c6c | 2275 | rsp->VolatileFileId = id; |
e2f34481 NJ |
2276 | rsp->PersistentFileId = 0; |
2277 | rsp->CreateContextsOffset = 0; | |
2278 | rsp->CreateContextsLength = 0; | |
2279 | ||
e2b76ab8 NJ |
2280 | err = ksmbd_iov_pin_rsp(work, rsp, offsetof(struct smb2_create_rsp, Buffer)); |
2281 | if (err) | |
2282 | goto out; | |
2283 | ||
e2f34481 NJ |
2284 | kfree(name); |
2285 | return 0; | |
2286 | ||
2287 | out: | |
79caa960 MM |
2288 | switch (err) { |
2289 | case -EINVAL: | |
2290 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; | |
2291 | break; | |
2292 | case -ENOSPC: | |
2293 | case -ENOMEM: | |
2294 | rsp->hdr.Status = STATUS_NO_MEMORY; | |
2295 | break; | |
2296 | } | |
2297 | ||
2298 | if (!IS_ERR(name)) | |
2299 | kfree(name); | |
2300 | ||
e2f34481 NJ |
2301 | smb2_set_err_rsp(work); |
2302 | return err; | |
2303 | } | |
2304 | ||
e2f34481 NJ |
2305 | /** |
2306 | * smb2_set_ea() - handler for setting extended attributes using set | |
2307 | * info command | |
2308 | * @eabuf: set info command buffer | |
9496e268 | 2309 | * @buf_len: set info command buffer length |
e2f34481 | 2310 | * @path: dentry path for get ea |
6fc0a265 | 2311 | * @get_write: get write access to a mount |
e2f34481 NJ |
2312 | * |
2313 | * Return: 0 on success, otherwise error | |
2314 | */ | |
9496e268 | 2315 | static int smb2_set_ea(struct smb2_ea_info *eabuf, unsigned int buf_len, |
6fc0a265 | 2316 | const struct path *path, bool get_write) |
e2f34481 | 2317 | { |
4609e1f1 | 2318 | struct mnt_idmap *idmap = mnt_idmap(path->mnt); |
e2f34481 NJ |
2319 | char *attr_name = NULL, *value; |
2320 | int rc = 0; | |
9496e268 NJ |
2321 | unsigned int next = 0; |
2322 | ||
2323 | if (buf_len < sizeof(struct smb2_ea_info) + eabuf->EaNameLength + | |
2324 | le16_to_cpu(eabuf->EaValueLength)) | |
2325 | return -EINVAL; | |
e2f34481 NJ |
2326 | |
2327 | attr_name = kmalloc(XATTR_NAME_MAX + 1, GFP_KERNEL); | |
2328 | if (!attr_name) | |
2329 | return -ENOMEM; | |
2330 | ||
2331 | do { | |
2332 | if (!eabuf->EaNameLength) | |
2333 | goto next; | |
2334 | ||
2335 | ksmbd_debug(SMB, | |
070fb21e NJ |
2336 | "name : <%s>, name_len : %u, value_len : %u, next : %u\n", |
2337 | eabuf->name, eabuf->EaNameLength, | |
2338 | le16_to_cpu(eabuf->EaValueLength), | |
2339 | le32_to_cpu(eabuf->NextEntryOffset)); | |
e2f34481 NJ |
2340 | |
2341 | if (eabuf->EaNameLength > | |
070fb21e | 2342 | (XATTR_NAME_MAX - XATTR_USER_PREFIX_LEN)) { |
e2f34481 NJ |
2343 | rc = -EINVAL; |
2344 | break; | |
2345 | } | |
2346 | ||
2347 | memcpy(attr_name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN); | |
2348 | memcpy(&attr_name[XATTR_USER_PREFIX_LEN], eabuf->name, | |
070fb21e | 2349 | eabuf->EaNameLength); |
e2f34481 NJ |
2350 | attr_name[XATTR_USER_PREFIX_LEN + eabuf->EaNameLength] = '\0'; |
2351 | value = (char *)&eabuf->name + eabuf->EaNameLength + 1; | |
2352 | ||
2353 | if (!eabuf->EaValueLength) { | |
4609e1f1 | 2354 | rc = ksmbd_vfs_casexattr_len(idmap, |
af34983e | 2355 | path->dentry, |
e2f34481 NJ |
2356 | attr_name, |
2357 | XATTR_USER_PREFIX_LEN + | |
2358 | eabuf->EaNameLength); | |
2359 | ||
2360 | /* delete the EA only when it exits */ | |
2361 | if (rc > 0) { | |
4609e1f1 | 2362 | rc = ksmbd_vfs_remove_xattr(idmap, |
40b268d3 | 2363 | path, |
e2f34481 NJ |
2364 | attr_name); |
2365 | ||
2366 | if (rc < 0) { | |
2367 | ksmbd_debug(SMB, | |
070fb21e NJ |
2368 | "remove xattr failed(%d)\n", |
2369 | rc); | |
e2f34481 NJ |
2370 | break; |
2371 | } | |
2372 | } | |
2373 | ||
2374 | /* if the EA doesn't exist, just do nothing. */ | |
2375 | rc = 0; | |
2376 | } else { | |
40b268d3 | 2377 | rc = ksmbd_vfs_setxattr(idmap, path, attr_name, value, |
864fb5d3 NJ |
2378 | le16_to_cpu(eabuf->EaValueLength), |
2379 | 0, true); | |
e2f34481 NJ |
2380 | if (rc < 0) { |
2381 | ksmbd_debug(SMB, | |
070fb21e NJ |
2382 | "ksmbd_vfs_setxattr is failed(%d)\n", |
2383 | rc); | |
e2f34481 NJ |
2384 | break; |
2385 | } | |
2386 | } | |
2387 | ||
2388 | next: | |
2389 | next = le32_to_cpu(eabuf->NextEntryOffset); | |
9496e268 NJ |
2390 | if (next == 0 || buf_len < next) |
2391 | break; | |
2392 | buf_len -= next; | |
e2f34481 | 2393 | eabuf = (struct smb2_ea_info *)((char *)eabuf + next); |
79ed288c NJ |
2394 | if (buf_len < sizeof(struct smb2_ea_info)) { |
2395 | rc = -EINVAL; | |
9496e268 | 2396 | break; |
79ed288c | 2397 | } |
9496e268 | 2398 | |
79ed288c NJ |
2399 | if (buf_len < sizeof(struct smb2_ea_info) + eabuf->EaNameLength + |
2400 | le16_to_cpu(eabuf->EaValueLength)) { | |
2401 | rc = -EINVAL; | |
2402 | break; | |
2403 | } | |
e2f34481 NJ |
2404 | } while (next != 0); |
2405 | ||
2406 | kfree(attr_name); | |
2407 | return rc; | |
2408 | } | |
2409 | ||
c22180a5 | 2410 | static noinline int smb2_set_stream_name_xattr(const struct path *path, |
070fb21e NJ |
2411 | struct ksmbd_file *fp, |
2412 | char *stream_name, int s_type) | |
e2f34481 | 2413 | { |
4609e1f1 | 2414 | struct mnt_idmap *idmap = mnt_idmap(path->mnt); |
e2f34481 NJ |
2415 | size_t xattr_stream_size; |
2416 | char *xattr_stream_name; | |
2417 | int rc; | |
2418 | ||
2419 | rc = ksmbd_vfs_xattr_stream_name(stream_name, | |
2420 | &xattr_stream_name, | |
2421 | &xattr_stream_size, | |
2422 | s_type); | |
2423 | if (rc) | |
2424 | return rc; | |
2425 | ||
2426 | fp->stream.name = xattr_stream_name; | |
2427 | fp->stream.size = xattr_stream_size; | |
2428 | ||
2429 | /* Check if there is stream prefix in xattr space */ | |
4609e1f1 | 2430 | rc = ksmbd_vfs_casexattr_len(idmap, |
af34983e | 2431 | path->dentry, |
e2f34481 NJ |
2432 | xattr_stream_name, |
2433 | xattr_stream_size); | |
2434 | if (rc >= 0) | |
2435 | return 0; | |
2436 | ||
2437 | if (fp->cdoption == FILE_OPEN_LE) { | |
2438 | ksmbd_debug(SMB, "XATTR stream name lookup failed: %d\n", rc); | |
2439 | return -EBADF; | |
2440 | } | |
2441 | ||
864fb5d3 | 2442 | rc = ksmbd_vfs_setxattr(idmap, path, xattr_stream_name, NULL, 0, 0, false); |
e2f34481 | 2443 | if (rc < 0) |
bde1694a | 2444 | pr_err("Failed to store XATTR stream name :%d\n", rc); |
e2f34481 NJ |
2445 | return 0; |
2446 | } | |
2447 | ||
c22180a5 | 2448 | static int smb2_remove_smb_xattrs(const struct path *path) |
e2f34481 | 2449 | { |
4609e1f1 | 2450 | struct mnt_idmap *idmap = mnt_idmap(path->mnt); |
e2f34481 NJ |
2451 | char *name, *xattr_list = NULL; |
2452 | ssize_t xattr_list_len; | |
2453 | int err = 0; | |
2454 | ||
ef24c962 | 2455 | xattr_list_len = ksmbd_vfs_listxattr(path->dentry, &xattr_list); |
e2f34481 NJ |
2456 | if (xattr_list_len < 0) { |
2457 | goto out; | |
2458 | } else if (!xattr_list_len) { | |
2459 | ksmbd_debug(SMB, "empty xattr in the file\n"); | |
2460 | goto out; | |
2461 | } | |
2462 | ||
2463 | for (name = xattr_list; name - xattr_list < xattr_list_len; | |
2464 | name += strlen(name) + 1) { | |
2465 | ksmbd_debug(SMB, "%s, len %zd\n", name, strlen(name)); | |
2466 | ||
17661ecf NJ |
2467 | if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN) && |
2468 | !strncmp(&name[XATTR_USER_PREFIX_LEN], STREAM_PREFIX, | |
2469 | STREAM_PREFIX_LEN)) { | |
40b268d3 | 2470 | err = ksmbd_vfs_remove_xattr(idmap, path, |
17661ecf NJ |
2471 | name); |
2472 | if (err) | |
2473 | ksmbd_debug(SMB, "remove xattr failed : %s\n", | |
2474 | name); | |
2475 | } | |
e2f34481 NJ |
2476 | } |
2477 | out: | |
79f6b11a | 2478 | kvfree(xattr_list); |
e2f34481 NJ |
2479 | return err; |
2480 | } | |
2481 | ||
c22180a5 | 2482 | static int smb2_create_truncate(const struct path *path) |
e2f34481 NJ |
2483 | { |
2484 | int rc = vfs_truncate(path, 0); | |
2485 | ||
2486 | if (rc) { | |
bde1694a | 2487 | pr_err("vfs_truncate failed, rc %d\n", rc); |
e2f34481 NJ |
2488 | return rc; |
2489 | } | |
2490 | ||
ef24c962 | 2491 | rc = smb2_remove_smb_xattrs(path); |
e2f34481 NJ |
2492 | if (rc == -EOPNOTSUPP) |
2493 | rc = 0; | |
2494 | if (rc) | |
2495 | ksmbd_debug(SMB, | |
070fb21e NJ |
2496 | "ksmbd_truncate_stream_name_xattr failed, rc %d\n", |
2497 | rc); | |
e2f34481 NJ |
2498 | return rc; |
2499 | } | |
2500 | ||
c22180a5 | 2501 | static void smb2_new_xattrs(struct ksmbd_tree_connect *tcon, const struct path *path, |
070fb21e | 2502 | struct ksmbd_file *fp) |
e2f34481 NJ |
2503 | { |
2504 | struct xattr_dos_attrib da = {0}; | |
2505 | int rc; | |
2506 | ||
2507 | if (!test_share_config_flag(tcon->share_conf, | |
2508 | KSMBD_SHARE_FLAG_STORE_DOS_ATTRS)) | |
2509 | return; | |
2510 | ||
2511 | da.version = 4; | |
2512 | da.attr = le32_to_cpu(fp->f_ci->m_fattr); | |
2513 | da.itime = da.create_time = fp->create_time; | |
2514 | da.flags = XATTR_DOSINFO_ATTRIB | XATTR_DOSINFO_CREATE_TIME | | |
2515 | XATTR_DOSINFO_ITIME; | |
2516 | ||
a9f106c7 | 2517 | rc = ksmbd_vfs_set_dos_attrib_xattr(mnt_idmap(path->mnt), path, &da, true); |
e2f34481 NJ |
2518 | if (rc) |
2519 | ksmbd_debug(SMB, "failed to store file attribute into xattr\n"); | |
2520 | } | |
2521 | ||
2522 | static void smb2_update_xattrs(struct ksmbd_tree_connect *tcon, | |
c22180a5 | 2523 | const struct path *path, struct ksmbd_file *fp) |
e2f34481 NJ |
2524 | { |
2525 | struct xattr_dos_attrib da; | |
2526 | int rc; | |
2527 | ||
26a2787d | 2528 | fp->f_ci->m_fattr &= ~(FILE_ATTRIBUTE_HIDDEN_LE | FILE_ATTRIBUTE_SYSTEM_LE); |
e2f34481 NJ |
2529 | |
2530 | /* get FileAttributes from XATTR_NAME_DOS_ATTRIBUTE */ | |
2531 | if (!test_share_config_flag(tcon->share_conf, | |
64b39f4a | 2532 | KSMBD_SHARE_FLAG_STORE_DOS_ATTRS)) |
e2f34481 NJ |
2533 | return; |
2534 | ||
4609e1f1 | 2535 | rc = ksmbd_vfs_get_dos_attrib_xattr(mnt_idmap(path->mnt), |
af34983e | 2536 | path->dentry, &da); |
e2f34481 NJ |
2537 | if (rc > 0) { |
2538 | fp->f_ci->m_fattr = cpu_to_le32(da.attr); | |
2539 | fp->create_time = da.create_time; | |
2540 | fp->itime = da.itime; | |
2541 | } | |
2542 | } | |
2543 | ||
2b57a432 NJ |
2544 | static int smb2_creat(struct ksmbd_work *work, struct path *parent_path, |
2545 | struct path *path, char *name, int open_flags, | |
2546 | umode_t posix_mode, bool is_dir) | |
e2f34481 NJ |
2547 | { |
2548 | struct ksmbd_tree_connect *tcon = work->tcon; | |
2549 | struct ksmbd_share_config *share = tcon->share_conf; | |
2550 | umode_t mode; | |
2551 | int rc; | |
2552 | ||
2553 | if (!(open_flags & O_CREAT)) | |
2554 | return -EBADF; | |
2555 | ||
2556 | ksmbd_debug(SMB, "file does not exist, so creating\n"); | |
2557 | if (is_dir == true) { | |
2558 | ksmbd_debug(SMB, "creating directory\n"); | |
2559 | ||
2560 | mode = share_config_directory_mode(share, posix_mode); | |
2561 | rc = ksmbd_vfs_mkdir(work, name, mode); | |
2562 | if (rc) | |
2563 | return rc; | |
2564 | } else { | |
2565 | ksmbd_debug(SMB, "creating regular file\n"); | |
2566 | ||
2567 | mode = share_config_create_mode(share, posix_mode); | |
2568 | rc = ksmbd_vfs_create(work, name, mode); | |
2569 | if (rc) | |
2570 | return rc; | |
2571 | } | |
2572 | ||
2b57a432 | 2573 | rc = ksmbd_vfs_kern_path_locked(work, name, 0, parent_path, path, 0); |
e2f34481 | 2574 | if (rc) { |
bde1694a NJ |
2575 | pr_err("cannot get linux path (%s), err = %d\n", |
2576 | name, rc); | |
e2f34481 NJ |
2577 | return rc; |
2578 | } | |
2579 | return 0; | |
2580 | } | |
2581 | ||
2582 | static int smb2_create_sd_buffer(struct ksmbd_work *work, | |
070fb21e | 2583 | struct smb2_create_req *req, |
c22180a5 | 2584 | const struct path *path) |
e2f34481 NJ |
2585 | { |
2586 | struct create_context *context; | |
21dd1fd6 | 2587 | struct create_sd_buf_req *sd_buf; |
e2f34481 NJ |
2588 | |
2589 | if (!req->CreateContextsOffset) | |
21dd1fd6 | 2590 | return -ENOENT; |
e2f34481 NJ |
2591 | |
2592 | /* Parse SD BUFFER create contexts */ | |
02f76c40 | 2593 | context = smb2_find_context_vals(req, SMB2_CREATE_SD_BUFFER, 4); |
21dd1fd6 HL |
2594 | if (!context) |
2595 | return -ENOENT; | |
2596 | else if (IS_ERR(context)) | |
2597 | return PTR_ERR(context); | |
e2f34481 | 2598 | |
21dd1fd6 HL |
2599 | ksmbd_debug(SMB, |
2600 | "Set ACLs using SMB2_CREATE_SD_BUFFER context\n"); | |
2601 | sd_buf = (struct create_sd_buf_req *)context; | |
8f77150c HL |
2602 | if (le16_to_cpu(context->DataOffset) + |
2603 | le32_to_cpu(context->DataLength) < | |
2604 | sizeof(struct create_sd_buf_req)) | |
2605 | return -EINVAL; | |
21dd1fd6 | 2606 | return set_info_sec(work->conn, work->tcon, path, &sd_buf->ntsd, |
864fb5d3 | 2607 | le32_to_cpu(sd_buf->ccontext.DataLength), true, false); |
e2f34481 NJ |
2608 | } |
2609 | ||
43205ca7 | 2610 | static void ksmbd_acls_fattr(struct smb_fattr *fattr, |
e67fe633 | 2611 | struct mnt_idmap *idmap, |
43205ca7 | 2612 | struct inode *inode) |
3d47e546 | 2613 | { |
e67fe633 CB |
2614 | vfsuid_t vfsuid = i_uid_into_vfsuid(idmap, inode); |
2615 | vfsgid_t vfsgid = i_gid_into_vfsgid(idmap, inode); | |
276a3f7c CB |
2616 | |
2617 | fattr->cf_uid = vfsuid_into_kuid(vfsuid); | |
2618 | fattr->cf_gid = vfsgid_into_kgid(vfsgid); | |
3d47e546 | 2619 | fattr->cf_mode = inode->i_mode; |
777cad16 | 2620 | fattr->cf_acls = NULL; |
3d47e546 NJ |
2621 | fattr->cf_dacls = NULL; |
2622 | ||
777cad16 | 2623 | if (IS_ENABLED(CONFIG_FS_POSIX_ACL)) { |
cac2f8b8 | 2624 | fattr->cf_acls = get_inode_acl(inode, ACL_TYPE_ACCESS); |
777cad16 | 2625 | if (S_ISDIR(inode->i_mode)) |
cac2f8b8 | 2626 | fattr->cf_dacls = get_inode_acl(inode, ACL_TYPE_DEFAULT); |
777cad16 | 2627 | } |
3d47e546 NJ |
2628 | } |
2629 | ||
c8efcc78 NJ |
2630 | enum { |
2631 | DURABLE_RECONN_V2 = 1, | |
2632 | DURABLE_RECONN, | |
2633 | DURABLE_REQ_V2, | |
2634 | DURABLE_REQ, | |
2635 | }; | |
2636 | ||
2637 | struct durable_info { | |
2638 | struct ksmbd_file *fp; | |
2639 | unsigned short int type; | |
2640 | bool persistent; | |
2641 | bool reconnected; | |
2642 | unsigned int timeout; | |
2643 | char *CreateGuid; | |
2644 | }; | |
2645 | ||
2646 | static int parse_durable_handle_context(struct ksmbd_work *work, | |
2647 | struct smb2_create_req *req, | |
2648 | struct lease_ctx_info *lc, | |
2649 | struct durable_info *dh_info) | |
2650 | { | |
2651 | struct ksmbd_conn *conn = work->conn; | |
2652 | struct create_context *context; | |
2653 | int dh_idx, err = 0; | |
2654 | u64 persistent_id = 0; | |
2655 | int req_op_level; | |
2656 | static const char * const durable_arr[] = {"DH2C", "DHnC", "DH2Q", "DHnQ"}; | |
2657 | ||
2658 | req_op_level = req->RequestedOplockLevel; | |
2659 | for (dh_idx = DURABLE_RECONN_V2; dh_idx <= ARRAY_SIZE(durable_arr); | |
2660 | dh_idx++) { | |
2661 | context = smb2_find_context_vals(req, durable_arr[dh_idx - 1], 4); | |
2662 | if (IS_ERR(context)) { | |
2663 | err = PTR_ERR(context); | |
2664 | goto out; | |
2665 | } | |
2666 | if (!context) | |
2667 | continue; | |
2668 | ||
2669 | switch (dh_idx) { | |
2670 | case DURABLE_RECONN_V2: | |
2671 | { | |
2672 | struct create_durable_reconn_v2_req *recon_v2; | |
2673 | ||
2674 | if (dh_info->type == DURABLE_RECONN || | |
2675 | dh_info->type == DURABLE_REQ_V2) { | |
2676 | err = -EINVAL; | |
2677 | goto out; | |
2678 | } | |
2679 | ||
2680 | recon_v2 = (struct create_durable_reconn_v2_req *)context; | |
2681 | persistent_id = recon_v2->Fid.PersistentFileId; | |
2682 | dh_info->fp = ksmbd_lookup_durable_fd(persistent_id); | |
2683 | if (!dh_info->fp) { | |
2684 | ksmbd_debug(SMB, "Failed to get durable handle state\n"); | |
2685 | err = -EBADF; | |
2686 | goto out; | |
2687 | } | |
2688 | ||
2689 | if (memcmp(dh_info->fp->create_guid, recon_v2->CreateGuid, | |
2690 | SMB2_CREATE_GUID_SIZE)) { | |
2691 | err = -EBADF; | |
2692 | ksmbd_put_durable_fd(dh_info->fp); | |
2693 | goto out; | |
2694 | } | |
2695 | ||
2696 | dh_info->type = dh_idx; | |
2697 | dh_info->reconnected = true; | |
2698 | ksmbd_debug(SMB, | |
2699 | "reconnect v2 Persistent-id from reconnect = %llu\n", | |
2700 | persistent_id); | |
2701 | break; | |
2702 | } | |
2703 | case DURABLE_RECONN: | |
2704 | { | |
2705 | struct create_durable_reconn_req *recon; | |
2706 | ||
2707 | if (dh_info->type == DURABLE_RECONN_V2 || | |
2708 | dh_info->type == DURABLE_REQ_V2) { | |
2709 | err = -EINVAL; | |
2710 | goto out; | |
2711 | } | |
2712 | ||
2713 | recon = (struct create_durable_reconn_req *)context; | |
2714 | persistent_id = recon->Data.Fid.PersistentFileId; | |
2715 | dh_info->fp = ksmbd_lookup_durable_fd(persistent_id); | |
2716 | if (!dh_info->fp) { | |
2717 | ksmbd_debug(SMB, "Failed to get durable handle state\n"); | |
2718 | err = -EBADF; | |
2719 | goto out; | |
2720 | } | |
2721 | ||
2722 | dh_info->type = dh_idx; | |
2723 | dh_info->reconnected = true; | |
2724 | ksmbd_debug(SMB, "reconnect Persistent-id from reconnect = %llu\n", | |
2725 | persistent_id); | |
2726 | break; | |
2727 | } | |
2728 | case DURABLE_REQ_V2: | |
2729 | { | |
2730 | struct create_durable_req_v2 *durable_v2_blob; | |
2731 | ||
2732 | if (dh_info->type == DURABLE_RECONN || | |
2733 | dh_info->type == DURABLE_RECONN_V2) { | |
2734 | err = -EINVAL; | |
2735 | goto out; | |
2736 | } | |
2737 | ||
2738 | durable_v2_blob = | |
2739 | (struct create_durable_req_v2 *)context; | |
2740 | ksmbd_debug(SMB, "Request for durable v2 open\n"); | |
2741 | dh_info->fp = ksmbd_lookup_fd_cguid(durable_v2_blob->CreateGuid); | |
2742 | if (dh_info->fp) { | |
2743 | if (!memcmp(conn->ClientGUID, dh_info->fp->client_guid, | |
2744 | SMB2_CLIENT_GUID_SIZE)) { | |
2745 | if (!(req->hdr.Flags & SMB2_FLAGS_REPLAY_OPERATION)) { | |
2746 | err = -ENOEXEC; | |
2747 | goto out; | |
2748 | } | |
2749 | ||
2750 | dh_info->fp->conn = conn; | |
2751 | dh_info->reconnected = true; | |
2752 | goto out; | |
2753 | } | |
2754 | } | |
2755 | ||
2756 | if (((lc && (lc->req_state & SMB2_LEASE_HANDLE_CACHING_LE)) || | |
2757 | req_op_level == SMB2_OPLOCK_LEVEL_BATCH)) { | |
2758 | dh_info->CreateGuid = | |
2759 | durable_v2_blob->CreateGuid; | |
2760 | dh_info->persistent = | |
2761 | le32_to_cpu(durable_v2_blob->Flags); | |
2762 | dh_info->timeout = | |
2763 | le32_to_cpu(durable_v2_blob->Timeout); | |
2764 | dh_info->type = dh_idx; | |
2765 | } | |
2766 | break; | |
2767 | } | |
2768 | case DURABLE_REQ: | |
2769 | if (dh_info->type == DURABLE_RECONN) | |
2770 | goto out; | |
2771 | if (dh_info->type == DURABLE_RECONN_V2 || | |
2772 | dh_info->type == DURABLE_REQ_V2) { | |
2773 | err = -EINVAL; | |
2774 | goto out; | |
2775 | } | |
2776 | ||
2777 | if (((lc && (lc->req_state & SMB2_LEASE_HANDLE_CACHING_LE)) || | |
2778 | req_op_level == SMB2_OPLOCK_LEVEL_BATCH)) { | |
2779 | ksmbd_debug(SMB, "Request for durable open\n"); | |
2780 | dh_info->type = dh_idx; | |
2781 | } | |
2782 | } | |
2783 | } | |
2784 | ||
2785 | out: | |
2786 | return err; | |
2787 | } | |
2788 | ||
e2f34481 NJ |
2789 | /** |
2790 | * smb2_open() - handler for smb file open request | |
2791 | * @work: smb work containing request buffer | |
2792 | * | |
2793 | * Return: 0 on success, otherwise error | |
2794 | */ | |
2795 | int smb2_open(struct ksmbd_work *work) | |
2796 | { | |
2797 | struct ksmbd_conn *conn = work->conn; | |
2798 | struct ksmbd_session *sess = work->sess; | |
2799 | struct ksmbd_tree_connect *tcon = work->tcon; | |
2800 | struct smb2_create_req *req; | |
cb451720 | 2801 | struct smb2_create_rsp *rsp; |
2b57a432 | 2802 | struct path path, parent_path; |
e2f34481 NJ |
2803 | struct ksmbd_share_config *share = tcon->share_conf; |
2804 | struct ksmbd_file *fp = NULL; | |
2805 | struct file *filp = NULL; | |
13e83a49 | 2806 | struct mnt_idmap *idmap = NULL; |
e2f34481 NJ |
2807 | struct kstat stat; |
2808 | struct create_context *context; | |
2809 | struct lease_ctx_info *lc = NULL; | |
2810 | struct create_ea_buf_req *ea_buf = NULL; | |
2811 | struct oplock_info *opinfo; | |
c8efcc78 | 2812 | struct durable_info dh_info = {0}; |
e2f34481 | 2813 | __le32 *next_ptr = NULL; |
6c5e36d1 | 2814 | int req_op_level = 0, open_flags = 0, may_flags = 0, file_info = 0; |
265fd199 | 2815 | int rc = 0; |
e2f34481 NJ |
2816 | int contxt_cnt = 0, query_disk_id = 0; |
2817 | int maximal_access_ctxt = 0, posix_ctxt = 0; | |
2818 | int s_type = 0; | |
2819 | int next_off = 0; | |
2820 | char *name = NULL; | |
2821 | char *stream_name = NULL; | |
2822 | bool file_present = false, created = false, already_permitted = false; | |
e2f34481 NJ |
2823 | int share_ret, need_truncate = 0; |
2824 | u64 time; | |
2825 | umode_t posix_mode = 0; | |
2826 | __le32 daccess, maximal_access = 0; | |
e2b76ab8 | 2827 | int iov_len = 0; |
e2f34481 | 2828 | |
e2f34481 NJ |
2829 | WORK_BUFFERS(work, req, rsp); |
2830 | ||
2831 | if (req->hdr.NextCommand && !work->next_smb2_rcv_hdr_off && | |
64b39f4a | 2832 | (req->hdr.Flags & SMB2_FLAGS_RELATED_OPERATIONS)) { |
e2f34481 NJ |
2833 | ksmbd_debug(SMB, "invalid flag in chained command\n"); |
2834 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; | |
2835 | smb2_set_err_rsp(work); | |
2836 | return -EINVAL; | |
2837 | } | |
2838 | ||
2839 | if (test_share_config_flag(share, KSMBD_SHARE_FLAG_PIPE)) { | |
2840 | ksmbd_debug(SMB, "IPC pipe create request\n"); | |
2841 | return create_smb2_pipe(work); | |
2842 | } | |
2843 | ||
2844 | if (req->NameLength) { | |
2845 | if ((req->CreateOptions & FILE_DIRECTORY_FILE_LE) && | |
64b39f4a | 2846 | *(char *)req->Buffer == '\\') { |
bde1694a | 2847 | pr_err("not allow directory name included leading slash\n"); |
e2f34481 | 2848 | rc = -EINVAL; |
2e450920 | 2849 | goto err_out2; |
e2f34481 NJ |
2850 | } |
2851 | ||
c6cd2e8d | 2852 | name = smb2_get_name((char *)req + le16_to_cpu(req->NameOffset), |
e2f34481 NJ |
2853 | le16_to_cpu(req->NameLength), |
2854 | work->conn->local_nls); | |
2855 | if (IS_ERR(name)) { | |
2856 | rc = PTR_ERR(name); | |
2857 | if (rc != -ENOMEM) | |
2858 | rc = -ENOENT; | |
8b99f350 | 2859 | name = NULL; |
2e450920 | 2860 | goto err_out2; |
e2f34481 NJ |
2861 | } |
2862 | ||
2863 | ksmbd_debug(SMB, "converted name = %s\n", name); | |
2864 | if (strchr(name, ':')) { | |
2865 | if (!test_share_config_flag(work->tcon->share_conf, | |
64b39f4a | 2866 | KSMBD_SHARE_FLAG_STREAMS)) { |
e2f34481 | 2867 | rc = -EBADF; |
2e450920 | 2868 | goto err_out2; |
e2f34481 NJ |
2869 | } |
2870 | rc = parse_stream_name(name, &stream_name, &s_type); | |
2871 | if (rc < 0) | |
2e450920 | 2872 | goto err_out2; |
e2f34481 NJ |
2873 | } |
2874 | ||
2875 | rc = ksmbd_validate_filename(name); | |
2876 | if (rc < 0) | |
2e450920 | 2877 | goto err_out2; |
e2f34481 NJ |
2878 | |
2879 | if (ksmbd_share_veto_filename(share, name)) { | |
2880 | rc = -ENOENT; | |
2881 | ksmbd_debug(SMB, "Reject open(), vetoed file: %s\n", | |
070fb21e | 2882 | name); |
2e450920 | 2883 | goto err_out2; |
e2f34481 NJ |
2884 | } |
2885 | } else { | |
265fd199 | 2886 | name = kstrdup("", GFP_KERNEL); |
e2f34481 | 2887 | if (!name) { |
e2f34481 | 2888 | rc = -ENOMEM; |
2e450920 | 2889 | goto err_out2; |
e2f34481 | 2890 | } |
e2f34481 NJ |
2891 | } |
2892 | ||
c8efcc78 NJ |
2893 | req_op_level = req->RequestedOplockLevel; |
2894 | ||
2895 | if (server_conf.flags & KSMBD_GLOBAL_FLAG_DURABLE_HANDLE && | |
2896 | req->CreateContextsOffset) { | |
2897 | lc = parse_lease_state(req); | |
2898 | rc = parse_durable_handle_context(work, req, lc, &dh_info); | |
2899 | if (rc) { | |
2900 | ksmbd_debug(SMB, "error parsing durable handle context\n"); | |
2901 | goto err_out2; | |
2902 | } | |
2903 | ||
2904 | if (dh_info.reconnected == true) { | |
2905 | rc = smb2_check_durable_oplock(conn, share, dh_info.fp, lc, name); | |
2906 | if (rc) { | |
2907 | ksmbd_put_durable_fd(dh_info.fp); | |
2908 | goto err_out2; | |
2909 | } | |
2910 | ||
2911 | rc = ksmbd_reopen_durable_fd(work, dh_info.fp); | |
2912 | if (rc) { | |
2913 | ksmbd_put_durable_fd(dh_info.fp); | |
2914 | goto err_out2; | |
2915 | } | |
2916 | ||
2917 | if (ksmbd_override_fsids(work)) { | |
2918 | rc = -ENOMEM; | |
2919 | ksmbd_put_durable_fd(dh_info.fp); | |
2920 | goto err_out2; | |
2921 | } | |
2922 | ||
2923 | fp = dh_info.fp; | |
2924 | file_info = FILE_OPENED; | |
2925 | ||
2926 | rc = ksmbd_vfs_getattr(&fp->filp->f_path, &stat); | |
2927 | if (rc) | |
2928 | goto err_out2; | |
2929 | ||
2930 | ksmbd_put_durable_fd(fp); | |
2931 | goto reconnected_fp; | |
2932 | } | |
2933 | } else if (req_op_level == SMB2_OPLOCK_LEVEL_LEASE) | |
2934 | lc = parse_lease_state(req); | |
2935 | ||
26a2787d | 2936 | if (le32_to_cpu(req->ImpersonationLevel) > le32_to_cpu(IL_DELEGATE)) { |
bde1694a NJ |
2937 | pr_err("Invalid impersonationlevel : 0x%x\n", |
2938 | le32_to_cpu(req->ImpersonationLevel)); | |
e2f34481 NJ |
2939 | rc = -EIO; |
2940 | rsp->hdr.Status = STATUS_BAD_IMPERSONATION_LEVEL; | |
2e450920 | 2941 | goto err_out2; |
e2f34481 NJ |
2942 | } |
2943 | ||
26a2787d | 2944 | if (req->CreateOptions && !(req->CreateOptions & CREATE_OPTIONS_MASK_LE)) { |
bde1694a NJ |
2945 | pr_err("Invalid create options : 0x%x\n", |
2946 | le32_to_cpu(req->CreateOptions)); | |
e2f34481 | 2947 | rc = -EINVAL; |
2e450920 | 2948 | goto err_out2; |
e2f34481 | 2949 | } else { |
e2f34481 | 2950 | if (req->CreateOptions & FILE_SEQUENTIAL_ONLY_LE && |
64b39f4a | 2951 | req->CreateOptions & FILE_RANDOM_ACCESS_LE) |
e2f34481 NJ |
2952 | req->CreateOptions = ~(FILE_SEQUENTIAL_ONLY_LE); |
2953 | ||
070fb21e NJ |
2954 | if (req->CreateOptions & |
2955 | (FILE_OPEN_BY_FILE_ID_LE | CREATE_TREE_CONNECTION | | |
2956 | FILE_RESERVE_OPFILTER_LE)) { | |
e2f34481 | 2957 | rc = -EOPNOTSUPP; |
2e450920 | 2958 | goto err_out2; |
e2f34481 NJ |
2959 | } |
2960 | ||
2961 | if (req->CreateOptions & FILE_DIRECTORY_FILE_LE) { | |
2962 | if (req->CreateOptions & FILE_NON_DIRECTORY_FILE_LE) { | |
2963 | rc = -EINVAL; | |
2e450920 | 2964 | goto err_out2; |
64b39f4a | 2965 | } else if (req->CreateOptions & FILE_NO_COMPRESSION_LE) { |
e2f34481 | 2966 | req->CreateOptions = ~(FILE_NO_COMPRESSION_LE); |
64b39f4a | 2967 | } |
e2f34481 NJ |
2968 | } |
2969 | } | |
2970 | ||
2971 | if (le32_to_cpu(req->CreateDisposition) > | |
070fb21e | 2972 | le32_to_cpu(FILE_OVERWRITE_IF_LE)) { |
bde1694a NJ |
2973 | pr_err("Invalid create disposition : 0x%x\n", |
2974 | le32_to_cpu(req->CreateDisposition)); | |
e2f34481 | 2975 | rc = -EINVAL; |
2e450920 | 2976 | goto err_out2; |
e2f34481 NJ |
2977 | } |
2978 | ||
2979 | if (!(req->DesiredAccess & DESIRED_ACCESS_MASK)) { | |
bde1694a NJ |
2980 | pr_err("Invalid desired access : 0x%x\n", |
2981 | le32_to_cpu(req->DesiredAccess)); | |
e2f34481 | 2982 | rc = -EACCES; |
2e450920 | 2983 | goto err_out2; |
e2f34481 NJ |
2984 | } |
2985 | ||
26a2787d | 2986 | if (req->FileAttributes && !(req->FileAttributes & FILE_ATTRIBUTE_MASK_LE)) { |
bde1694a NJ |
2987 | pr_err("Invalid file attribute : 0x%x\n", |
2988 | le32_to_cpu(req->FileAttributes)); | |
e2f34481 | 2989 | rc = -EINVAL; |
2e450920 | 2990 | goto err_out2; |
e2f34481 NJ |
2991 | } |
2992 | ||
2993 | if (req->CreateContextsOffset) { | |
2994 | /* Parse non-durable handle create contexts */ | |
02f76c40 | 2995 | context = smb2_find_context_vals(req, SMB2_CREATE_EA_BUFFER, 4); |
f19b3967 NJ |
2996 | if (IS_ERR(context)) { |
2997 | rc = PTR_ERR(context); | |
2e450920 | 2998 | goto err_out2; |
f19b3967 | 2999 | } else if (context) { |
e2f34481 | 3000 | ea_buf = (struct create_ea_buf_req *)context; |
8f77150c HL |
3001 | if (le16_to_cpu(context->DataOffset) + |
3002 | le32_to_cpu(context->DataLength) < | |
3003 | sizeof(struct create_ea_buf_req)) { | |
3004 | rc = -EINVAL; | |
2e450920 | 3005 | goto err_out2; |
8f77150c | 3006 | } |
e2f34481 NJ |
3007 | if (req->CreateOptions & FILE_NO_EA_KNOWLEDGE_LE) { |
3008 | rsp->hdr.Status = STATUS_ACCESS_DENIED; | |
3009 | rc = -EACCES; | |
2e450920 | 3010 | goto err_out2; |
e2f34481 NJ |
3011 | } |
3012 | } | |
3013 | ||
3014 | context = smb2_find_context_vals(req, | |
02f76c40 | 3015 | SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST, 4); |
f19b3967 NJ |
3016 | if (IS_ERR(context)) { |
3017 | rc = PTR_ERR(context); | |
2e450920 | 3018 | goto err_out2; |
f19b3967 | 3019 | } else if (context) { |
e2f34481 | 3020 | ksmbd_debug(SMB, |
070fb21e | 3021 | "get query maximal access context\n"); |
e2f34481 NJ |
3022 | maximal_access_ctxt = 1; |
3023 | } | |
3024 | ||
3025 | context = smb2_find_context_vals(req, | |
02f76c40 | 3026 | SMB2_CREATE_TIMEWARP_REQUEST, 4); |
f19b3967 NJ |
3027 | if (IS_ERR(context)) { |
3028 | rc = PTR_ERR(context); | |
2e450920 | 3029 | goto err_out2; |
f19b3967 | 3030 | } else if (context) { |
e2f34481 NJ |
3031 | ksmbd_debug(SMB, "get timewarp context\n"); |
3032 | rc = -EBADF; | |
2e450920 | 3033 | goto err_out2; |
e2f34481 NJ |
3034 | } |
3035 | ||
3036 | if (tcon->posix_extensions) { | |
3037 | context = smb2_find_context_vals(req, | |
02f76c40 | 3038 | SMB2_CREATE_TAG_POSIX, 16); |
f19b3967 NJ |
3039 | if (IS_ERR(context)) { |
3040 | rc = PTR_ERR(context); | |
2e450920 | 3041 | goto err_out2; |
f19b3967 | 3042 | } else if (context) { |
e2f34481 NJ |
3043 | struct create_posix *posix = |
3044 | (struct create_posix *)context; | |
8f77150c HL |
3045 | if (le16_to_cpu(context->DataOffset) + |
3046 | le32_to_cpu(context->DataLength) < | |
9ca8581e | 3047 | sizeof(struct create_posix) - 4) { |
8f77150c | 3048 | rc = -EINVAL; |
2e450920 | 3049 | goto err_out2; |
8f77150c | 3050 | } |
e2f34481 NJ |
3051 | ksmbd_debug(SMB, "get posix context\n"); |
3052 | ||
3053 | posix_mode = le32_to_cpu(posix->Mode); | |
3054 | posix_ctxt = 1; | |
3055 | } | |
3056 | } | |
3057 | } | |
3058 | ||
3059 | if (ksmbd_override_fsids(work)) { | |
3060 | rc = -ENOMEM; | |
2e450920 | 3061 | goto err_out2; |
e2f34481 NJ |
3062 | } |
3063 | ||
2b57a432 NJ |
3064 | rc = ksmbd_vfs_kern_path_locked(work, name, LOOKUP_NO_SYMLINKS, |
3065 | &parent_path, &path, 1); | |
4ea47798 | 3066 | if (!rc) { |
74d7970f NJ |
3067 | file_present = true; |
3068 | ||
4ea47798 | 3069 | if (req->CreateOptions & FILE_DELETE_ON_CLOSE_LE) { |
e2f34481 NJ |
3070 | /* |
3071 | * If file exists with under flags, return access | |
3072 | * denied error. | |
3073 | */ | |
3074 | if (req->CreateDisposition == FILE_OVERWRITE_IF_LE || | |
64b39f4a | 3075 | req->CreateDisposition == FILE_OPEN_IF_LE) { |
e2f34481 | 3076 | rc = -EACCES; |
e2f34481 NJ |
3077 | goto err_out; |
3078 | } | |
3079 | ||
64b39f4a | 3080 | if (!test_tree_conn_flag(tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) { |
e2f34481 | 3081 | ksmbd_debug(SMB, |
070fb21e | 3082 | "User does not have write permission\n"); |
e2f34481 | 3083 | rc = -EACCES; |
e2f34481 NJ |
3084 | goto err_out; |
3085 | } | |
4ea47798 NJ |
3086 | } else if (d_is_symlink(path.dentry)) { |
3087 | rc = -EACCES; | |
4ea47798 | 3088 | goto err_out; |
e2f34481 | 3089 | } |
e2f34481 | 3090 | |
74d7970f NJ |
3091 | file_present = true; |
3092 | idmap = mnt_idmap(path.mnt); | |
3093 | } else { | |
265fd199 | 3094 | if (rc != -ENOENT) |
e2f34481 | 3095 | goto err_out; |
e2f34481 | 3096 | ksmbd_debug(SMB, "can not get linux path for %s, rc = %d\n", |
070fb21e | 3097 | name, rc); |
e2f34481 | 3098 | rc = 0; |
e2f34481 | 3099 | } |
74d7970f | 3100 | |
e2f34481 NJ |
3101 | if (stream_name) { |
3102 | if (req->CreateOptions & FILE_DIRECTORY_FILE_LE) { | |
3103 | if (s_type == DATA_STREAM) { | |
3104 | rc = -EIO; | |
3105 | rsp->hdr.Status = STATUS_NOT_A_DIRECTORY; | |
3106 | } | |
3107 | } else { | |
823d0d3e NJ |
3108 | if (file_present && S_ISDIR(d_inode(path.dentry)->i_mode) && |
3109 | s_type == DATA_STREAM) { | |
e2f34481 NJ |
3110 | rc = -EIO; |
3111 | rsp->hdr.Status = STATUS_FILE_IS_A_DIRECTORY; | |
3112 | } | |
3113 | } | |
3114 | ||
3115 | if (req->CreateOptions & FILE_DIRECTORY_FILE_LE && | |
26a2787d | 3116 | req->FileAttributes & FILE_ATTRIBUTE_NORMAL_LE) { |
e2f34481 NJ |
3117 | rsp->hdr.Status = STATUS_NOT_A_DIRECTORY; |
3118 | rc = -EIO; | |
3119 | } | |
3120 | ||
3121 | if (rc < 0) | |
3122 | goto err_out; | |
3123 | } | |
3124 | ||
64b39f4a | 3125 | if (file_present && req->CreateOptions & FILE_NON_DIRECTORY_FILE_LE && |
823d0d3e NJ |
3126 | S_ISDIR(d_inode(path.dentry)->i_mode) && |
3127 | !(req->CreateOptions & FILE_DELETE_ON_CLOSE_LE)) { | |
e2f34481 | 3128 | ksmbd_debug(SMB, "open() argument is a directory: %s, %x\n", |
070fb21e | 3129 | name, req->CreateOptions); |
e2f34481 NJ |
3130 | rsp->hdr.Status = STATUS_FILE_IS_A_DIRECTORY; |
3131 | rc = -EIO; | |
3132 | goto err_out; | |
3133 | } | |
3134 | ||
3135 | if (file_present && (req->CreateOptions & FILE_DIRECTORY_FILE_LE) && | |
64b39f4a | 3136 | !(req->CreateDisposition == FILE_CREATE_LE) && |
823d0d3e | 3137 | !S_ISDIR(d_inode(path.dentry)->i_mode)) { |
e2f34481 NJ |
3138 | rsp->hdr.Status = STATUS_NOT_A_DIRECTORY; |
3139 | rc = -EIO; | |
3140 | goto err_out; | |
3141 | } | |
3142 | ||
3143 | if (!stream_name && file_present && | |
64b39f4a | 3144 | req->CreateDisposition == FILE_CREATE_LE) { |
e2f34481 NJ |
3145 | rc = -EEXIST; |
3146 | goto err_out; | |
3147 | } | |
3148 | ||
e2f34481 NJ |
3149 | daccess = smb_map_generic_desired_access(req->DesiredAccess); |
3150 | ||
3151 | if (file_present && !(req->CreateOptions & FILE_DELETE_ON_CLOSE_LE)) { | |
ef24c962 | 3152 | rc = smb_check_perm_dacl(conn, &path, &daccess, |
070fb21e | 3153 | sess->user->uid); |
e2f34481 NJ |
3154 | if (rc) |
3155 | goto err_out; | |
3156 | } | |
3157 | ||
3158 | if (daccess & FILE_MAXIMAL_ACCESS_LE) { | |
3159 | if (!file_present) { | |
3160 | daccess = cpu_to_le32(GENERIC_ALL_FLAGS); | |
3161 | } else { | |
ccb5889a | 3162 | ksmbd_vfs_query_maximal_access(idmap, |
af34983e | 3163 | path.dentry, |
e2f34481 | 3164 | &daccess); |
e2f34481 NJ |
3165 | already_permitted = true; |
3166 | } | |
3167 | maximal_access = daccess; | |
3168 | } | |
3169 | ||
070fb21e | 3170 | open_flags = smb2_create_open_flags(file_present, daccess, |
6c5e36d1 HL |
3171 | req->CreateDisposition, |
3172 | &may_flags); | |
e2f34481 NJ |
3173 | |
3174 | if (!test_tree_conn_flag(tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) { | |
d592a915 | 3175 | if (open_flags & (O_CREAT | O_TRUNC)) { |
e2f34481 | 3176 | ksmbd_debug(SMB, |
070fb21e | 3177 | "User does not have write permission\n"); |
e2f34481 NJ |
3178 | rc = -EACCES; |
3179 | goto err_out; | |
3180 | } | |
3181 | } | |
3182 | ||
3183 | /*create file if not present */ | |
3184 | if (!file_present) { | |
2b57a432 NJ |
3185 | rc = smb2_creat(work, &parent_path, &path, name, open_flags, |
3186 | posix_mode, | |
070fb21e | 3187 | req->CreateOptions & FILE_DIRECTORY_FILE_LE); |
d337a44e MM |
3188 | if (rc) { |
3189 | if (rc == -ENOENT) { | |
3190 | rc = -EIO; | |
3191 | rsp->hdr.Status = STATUS_OBJECT_PATH_NOT_FOUND; | |
3192 | } | |
e2f34481 | 3193 | goto err_out; |
d337a44e | 3194 | } |
e2f34481 NJ |
3195 | |
3196 | created = true; | |
13e83a49 | 3197 | idmap = mnt_idmap(path.mnt); |
e2f34481 | 3198 | if (ea_buf) { |
9496e268 NJ |
3199 | if (le32_to_cpu(ea_buf->ccontext.DataLength) < |
3200 | sizeof(struct smb2_ea_info)) { | |
3201 | rc = -EINVAL; | |
3202 | goto err_out; | |
3203 | } | |
3204 | ||
3205 | rc = smb2_set_ea(&ea_buf->ea, | |
3206 | le32_to_cpu(ea_buf->ccontext.DataLength), | |
6fc0a265 | 3207 | &path, false); |
e2f34481 NJ |
3208 | if (rc == -EOPNOTSUPP) |
3209 | rc = 0; | |
3210 | else if (rc) | |
3211 | goto err_out; | |
3212 | } | |
3213 | } else if (!already_permitted) { | |
e2f34481 NJ |
3214 | /* FILE_READ_ATTRIBUTE is allowed without inode_permission, |
3215 | * because execute(search) permission on a parent directory, | |
3216 | * is already granted. | |
3217 | */ | |
64b39f4a | 3218 | if (daccess & ~(FILE_READ_ATTRIBUTES_LE | FILE_READ_CONTROL_LE)) { |
4609e1f1 | 3219 | rc = inode_permission(idmap, |
6c5e36d1 HL |
3220 | d_inode(path.dentry), |
3221 | may_flags); | |
ff1d5727 | 3222 | if (rc) |
e2f34481 | 3223 | goto err_out; |
6c5e36d1 HL |
3224 | |
3225 | if ((daccess & FILE_DELETE_LE) || | |
3226 | (req->CreateOptions & FILE_DELETE_ON_CLOSE_LE)) { | |
74d7970f NJ |
3227 | rc = inode_permission(idmap, |
3228 | d_inode(path.dentry->d_parent), | |
3229 | MAY_EXEC | MAY_WRITE); | |
6c5e36d1 HL |
3230 | if (rc) |
3231 | goto err_out; | |
3232 | } | |
e2f34481 NJ |
3233 | } |
3234 | } | |
3235 | ||
4274a9dc | 3236 | rc = ksmbd_query_inode_status(path.dentry->d_parent); |
e2f34481 NJ |
3237 | if (rc == KSMBD_INODE_STATUS_PENDING_DELETE) { |
3238 | rc = -EBUSY; | |
3239 | goto err_out; | |
3240 | } | |
3241 | ||
3242 | rc = 0; | |
3243 | filp = dentry_open(&path, open_flags, current_cred()); | |
3244 | if (IS_ERR(filp)) { | |
3245 | rc = PTR_ERR(filp); | |
bde1694a | 3246 | pr_err("dentry open for dir failed, rc %d\n", rc); |
e2f34481 NJ |
3247 | goto err_out; |
3248 | } | |
3249 | ||
3250 | if (file_present) { | |
3251 | if (!(open_flags & O_TRUNC)) | |
3252 | file_info = FILE_OPENED; | |
3253 | else | |
3254 | file_info = FILE_OVERWRITTEN; | |
3255 | ||
070fb21e NJ |
3256 | if ((req->CreateDisposition & FILE_CREATE_MASK_LE) == |
3257 | FILE_SUPERSEDE_LE) | |
e2f34481 | 3258 | file_info = FILE_SUPERSEDED; |
64b39f4a | 3259 | } else if (open_flags & O_CREAT) { |
e2f34481 | 3260 | file_info = FILE_CREATED; |
64b39f4a | 3261 | } |
e2f34481 NJ |
3262 | |
3263 | ksmbd_vfs_set_fadvise(filp, req->CreateOptions); | |
3264 | ||
3265 | /* Obtain Volatile-ID */ | |
3266 | fp = ksmbd_open_fd(work, filp); | |
3267 | if (IS_ERR(fp)) { | |
3268 | fput(filp); | |
3269 | rc = PTR_ERR(fp); | |
3270 | fp = NULL; | |
3271 | goto err_out; | |
3272 | } | |
3273 | ||
3274 | /* Get Persistent-ID */ | |
3275 | ksmbd_open_durable_fd(fp); | |
3867369e | 3276 | if (!has_file_id(fp->persistent_id)) { |
e2f34481 NJ |
3277 | rc = -ENOMEM; |
3278 | goto err_out; | |
3279 | } | |
3280 | ||
e2f34481 NJ |
3281 | fp->cdoption = req->CreateDisposition; |
3282 | fp->daccess = daccess; | |
3283 | fp->saccess = req->ShareAccess; | |
3284 | fp->coption = req->CreateOptions; | |
3285 | ||
3286 | /* Set default windows and posix acls if creating new file */ | |
3287 | if (created) { | |
3288 | int posix_acl_rc; | |
fba08fa0 | 3289 | struct inode *inode = d_inode(path.dentry); |
e2f34481 | 3290 | |
13e83a49 | 3291 | posix_acl_rc = ksmbd_vfs_inherit_posix_acl(idmap, |
40b268d3 | 3292 | &path, |
af34983e | 3293 | d_inode(path.dentry->d_parent)); |
e2f34481 NJ |
3294 | if (posix_acl_rc) |
3295 | ksmbd_debug(SMB, "inherit posix acl failed : %d\n", posix_acl_rc); | |
3296 | ||
3297 | if (test_share_config_flag(work->tcon->share_conf, | |
64b39f4a | 3298 | KSMBD_SHARE_FLAG_ACL_XATTR)) { |
ef24c962 | 3299 | rc = smb_inherit_dacl(conn, &path, sess->user->uid, |
070fb21e | 3300 | sess->user->gid); |
e2f34481 NJ |
3301 | } |
3302 | ||
3303 | if (rc) { | |
ef24c962 | 3304 | rc = smb2_create_sd_buffer(work, req, &path); |
e2f34481 NJ |
3305 | if (rc) { |
3306 | if (posix_acl_rc) | |
13e83a49 | 3307 | ksmbd_vfs_set_init_posix_acl(idmap, |
40b268d3 | 3308 | &path); |
e2f34481 NJ |
3309 | |
3310 | if (test_share_config_flag(work->tcon->share_conf, | |
64b39f4a | 3311 | KSMBD_SHARE_FLAG_ACL_XATTR)) { |
e2f34481 NJ |
3312 | struct smb_fattr fattr; |
3313 | struct smb_ntsd *pntsd; | |
3d47e546 | 3314 | int pntsd_size, ace_num = 0; |
e2f34481 | 3315 | |
e67fe633 | 3316 | ksmbd_acls_fattr(&fattr, idmap, inode); |
e6b1059f MM |
3317 | if (fattr.cf_acls) |
3318 | ace_num = fattr.cf_acls->a_count; | |
3d47e546 NJ |
3319 | if (fattr.cf_dacls) |
3320 | ace_num += fattr.cf_dacls->a_count; | |
e2f34481 NJ |
3321 | |
3322 | pntsd = kmalloc(sizeof(struct smb_ntsd) + | |
64b39f4a | 3323 | sizeof(struct smb_sid) * 3 + |
e2f34481 | 3324 | sizeof(struct smb_acl) + |
64b39f4a | 3325 | sizeof(struct smb_ace) * ace_num * 2, |
e2f34481 | 3326 | GFP_KERNEL); |
2624b445 C |
3327 | if (!pntsd) { |
3328 | posix_acl_release(fattr.cf_acls); | |
3329 | posix_acl_release(fattr.cf_dacls); | |
e2f34481 | 3330 | goto err_out; |
2624b445 | 3331 | } |
e2f34481 | 3332 | |
4d7ca409 | 3333 | rc = build_sec_desc(idmap, |
8f054118 | 3334 | pntsd, NULL, 0, |
070fb21e | 3335 | OWNER_SECINFO | |
af34983e HL |
3336 | GROUP_SECINFO | |
3337 | DACL_SECINFO, | |
070fb21e | 3338 | &pntsd_size, &fattr); |
e2f34481 NJ |
3339 | posix_acl_release(fattr.cf_acls); |
3340 | posix_acl_release(fattr.cf_dacls); | |
f2e78aff NJ |
3341 | if (rc) { |
3342 | kfree(pntsd); | |
3343 | goto err_out; | |
3344 | } | |
e2f34481 NJ |
3345 | |
3346 | rc = ksmbd_vfs_set_sd_xattr(conn, | |
4609e1f1 | 3347 | idmap, |
40b268d3 | 3348 | &path, |
070fb21e | 3349 | pntsd, |
864fb5d3 NJ |
3350 | pntsd_size, |
3351 | false); | |
3d47e546 | 3352 | kfree(pntsd); |
e2f34481 | 3353 | if (rc) |
bde1694a NJ |
3354 | pr_err("failed to store ntacl in xattr : %d\n", |
3355 | rc); | |
e2f34481 NJ |
3356 | } |
3357 | } | |
3358 | } | |
3359 | rc = 0; | |
3360 | } | |
3361 | ||
3362 | if (stream_name) { | |
3363 | rc = smb2_set_stream_name_xattr(&path, | |
3364 | fp, | |
3365 | stream_name, | |
3366 | s_type); | |
3367 | if (rc) | |
3368 | goto err_out; | |
3369 | file_info = FILE_CREATED; | |
3370 | } | |
3371 | ||
3372 | fp->attrib_only = !(req->DesiredAccess & ~(FILE_READ_ATTRIBUTES_LE | | |
3373 | FILE_WRITE_ATTRIBUTES_LE | FILE_SYNCHRONIZE_LE)); | |
e2f34481 NJ |
3374 | |
3375 | /* fp should be searchable through ksmbd_inode.m_fp_list | |
3376 | * after daccess, saccess, attrib_only, and stream are | |
3377 | * initialized. | |
3378 | */ | |
3379 | write_lock(&fp->f_ci->m_lock); | |
3380 | list_add(&fp->node, &fp->f_ci->m_fp_list); | |
3381 | write_unlock(&fp->f_ci->m_lock); | |
3382 | ||
e2f34481 NJ |
3383 | /* Check delete pending among previous fp before oplock break */ |
3384 | if (ksmbd_inode_pending_delete(fp)) { | |
3385 | rc = -EBUSY; | |
3386 | goto err_out; | |
3387 | } | |
3388 | ||
2e450920 NJ |
3389 | if (file_present || created) |
3390 | ksmbd_vfs_kern_path_unlock(&parent_path, &path); | |
3391 | ||
3392 | if (!S_ISDIR(file_inode(filp)->i_mode) && open_flags & O_TRUNC && | |
3393 | !fp->attrib_only && !stream_name) { | |
3394 | smb_break_all_oplock(work, fp); | |
3395 | need_truncate = 1; | |
3396 | } | |
3397 | ||
e2f34481 | 3398 | share_ret = ksmbd_smb_check_shared_mode(fp->filp, fp); |
64b39f4a NJ |
3399 | if (!test_share_config_flag(work->tcon->share_conf, KSMBD_SHARE_FLAG_OPLOCKS) || |
3400 | (req_op_level == SMB2_OPLOCK_LEVEL_LEASE && | |
3401 | !(conn->vals->capabilities & SMB2_GLOBAL_CAP_LEASING))) { | |
ab0b263b | 3402 | if (share_ret < 0 && !S_ISDIR(file_inode(fp->filp)->i_mode)) { |
e2f34481 | 3403 | rc = share_ret; |
2e450920 | 3404 | goto err_out1; |
e2f34481 NJ |
3405 | } |
3406 | } else { | |
3407 | if (req_op_level == SMB2_OPLOCK_LEVEL_LEASE) { | |
c8efcc78 NJ |
3408 | if (S_ISDIR(file_inode(filp)->i_mode)) { |
3409 | lc->req_state &= ~SMB2_LEASE_WRITE_CACHING_LE; | |
3410 | lc->is_dir = true; | |
3411 | } | |
3412 | ||
d47d9886 NJ |
3413 | /* |
3414 | * Compare parent lease using parent key. If there is no | |
3415 | * a lease that has same parent key, Send lease break | |
3416 | * notification. | |
3417 | */ | |
3418 | smb_send_parent_lease_break_noti(fp, lc); | |
3419 | ||
e2f34481 NJ |
3420 | req_op_level = smb2_map_lease_to_oplock(lc->req_state); |
3421 | ksmbd_debug(SMB, | |
070fb21e NJ |
3422 | "lease req for(%s) req oplock state 0x%x, lease state 0x%x\n", |
3423 | name, req_op_level, lc->req_state); | |
e2f34481 NJ |
3424 | rc = find_same_lease_key(sess, fp->f_ci, lc); |
3425 | if (rc) | |
2e450920 | 3426 | goto err_out1; |
e2f34481 | 3427 | } else if (open_flags == O_RDONLY && |
64b39f4a NJ |
3428 | (req_op_level == SMB2_OPLOCK_LEVEL_BATCH || |
3429 | req_op_level == SMB2_OPLOCK_LEVEL_EXCLUSIVE)) | |
e2f34481 NJ |
3430 | req_op_level = SMB2_OPLOCK_LEVEL_II; |
3431 | ||
3432 | rc = smb_grant_oplock(work, req_op_level, | |
3433 | fp->persistent_id, fp, | |
3434 | le32_to_cpu(req->hdr.Id.SyncId.TreeId), | |
3435 | lc, share_ret); | |
3436 | if (rc < 0) | |
2e450920 | 3437 | goto err_out1; |
e2f34481 NJ |
3438 | } |
3439 | ||
3440 | if (req->CreateOptions & FILE_DELETE_ON_CLOSE_LE) | |
3441 | ksmbd_fd_set_delete_on_close(fp, file_info); | |
3442 | ||
2e450920 NJ |
3443 | if (need_truncate) { |
3444 | rc = smb2_create_truncate(&fp->filp->f_path); | |
3445 | if (rc) | |
3446 | goto err_out1; | |
3447 | } | |
3448 | ||
e2f34481 NJ |
3449 | if (req->CreateContextsOffset) { |
3450 | struct create_alloc_size_req *az_req; | |
3451 | ||
070fb21e | 3452 | az_req = (struct create_alloc_size_req *)smb2_find_context_vals(req, |
02f76c40 | 3453 | SMB2_CREATE_ALLOCATION_SIZE, 4); |
f19b3967 NJ |
3454 | if (IS_ERR(az_req)) { |
3455 | rc = PTR_ERR(az_req); | |
2e450920 | 3456 | goto err_out1; |
f19b3967 | 3457 | } else if (az_req) { |
8f77150c | 3458 | loff_t alloc_size; |
e2f34481 NJ |
3459 | int err; |
3460 | ||
8f77150c HL |
3461 | if (le16_to_cpu(az_req->ccontext.DataOffset) + |
3462 | le32_to_cpu(az_req->ccontext.DataLength) < | |
3463 | sizeof(struct create_alloc_size_req)) { | |
3464 | rc = -EINVAL; | |
2e450920 | 3465 | goto err_out1; |
8f77150c HL |
3466 | } |
3467 | alloc_size = le64_to_cpu(az_req->AllocationSize); | |
e2f34481 | 3468 | ksmbd_debug(SMB, |
070fb21e NJ |
3469 | "request smb2 create allocate size : %llu\n", |
3470 | alloc_size); | |
e8c06191 NJ |
3471 | smb_break_all_levII_oplock(work, fp, 1); |
3472 | err = vfs_fallocate(fp->filp, FALLOC_FL_KEEP_SIZE, 0, | |
3473 | alloc_size); | |
e2f34481 NJ |
3474 | if (err < 0) |
3475 | ksmbd_debug(SMB, | |
e8c06191 | 3476 | "vfs_fallocate is failed : %d\n", |
070fb21e | 3477 | err); |
e2f34481 NJ |
3478 | } |
3479 | ||
02f76c40 | 3480 | context = smb2_find_context_vals(req, SMB2_CREATE_QUERY_ON_DISK_ID, 4); |
f19b3967 NJ |
3481 | if (IS_ERR(context)) { |
3482 | rc = PTR_ERR(context); | |
2e450920 | 3483 | goto err_out1; |
f19b3967 | 3484 | } else if (context) { |
e2f34481 NJ |
3485 | ksmbd_debug(SMB, "get query on disk id context\n"); |
3486 | query_disk_id = 1; | |
3487 | } | |
3488 | } | |
3489 | ||
a9f106c7 NJ |
3490 | rc = ksmbd_vfs_getattr(&path, &stat); |
3491 | if (rc) | |
3492 | goto err_out1; | |
3493 | ||
3494 | if (stat.result_mask & STATX_BTIME) | |
3495 | fp->create_time = ksmbd_UnixTimeToNT(stat.btime); | |
3496 | else | |
3497 | fp->create_time = ksmbd_UnixTimeToNT(stat.ctime); | |
3498 | if (req->FileAttributes || fp->f_ci->m_fattr == 0) | |
3499 | fp->f_ci->m_fattr = | |
3500 | cpu_to_le32(smb2_get_dos_mode(&stat, le32_to_cpu(req->FileAttributes))); | |
3501 | ||
3502 | if (!created) | |
3503 | smb2_update_xattrs(tcon, &path, fp); | |
3504 | else | |
3505 | smb2_new_xattrs(tcon, &path, fp); | |
3506 | ||
e2f34481 NJ |
3507 | memcpy(fp->client_guid, conn->ClientGUID, SMB2_CLIENT_GUID_SIZE); |
3508 | ||
c8efcc78 | 3509 | if (dh_info.type == DURABLE_REQ_V2 || dh_info.type == DURABLE_REQ) { |
e9d8c2f9 NJ |
3510 | if (dh_info.type == DURABLE_REQ_V2 && dh_info.persistent && |
3511 | test_share_config_flag(work->tcon->share_conf, | |
3512 | KSMBD_SHARE_FLAG_CONTINUOUS_AVAILABILITY)) | |
c8efcc78 NJ |
3513 | fp->is_persistent = true; |
3514 | else | |
3515 | fp->is_durable = true; | |
3516 | ||
3517 | if (dh_info.type == DURABLE_REQ_V2) { | |
3518 | memcpy(fp->create_guid, dh_info.CreateGuid, | |
3519 | SMB2_CREATE_GUID_SIZE); | |
3520 | if (dh_info.timeout) | |
3521 | fp->durable_timeout = min(dh_info.timeout, | |
3522 | 300000); | |
3523 | else | |
3524 | fp->durable_timeout = 60; | |
3525 | } | |
3526 | } | |
3527 | ||
3528 | reconnected_fp: | |
e2f34481 NJ |
3529 | rsp->StructureSize = cpu_to_le16(89); |
3530 | rcu_read_lock(); | |
3531 | opinfo = rcu_dereference(fp->f_opinfo); | |
3532 | rsp->OplockLevel = opinfo != NULL ? opinfo->level : 0; | |
3533 | rcu_read_unlock(); | |
26a2787d | 3534 | rsp->Flags = 0; |
e2f34481 NJ |
3535 | rsp->CreateAction = cpu_to_le32(file_info); |
3536 | rsp->CreationTime = cpu_to_le64(fp->create_time); | |
3537 | time = ksmbd_UnixTimeToNT(stat.atime); | |
3538 | rsp->LastAccessTime = cpu_to_le64(time); | |
3539 | time = ksmbd_UnixTimeToNT(stat.mtime); | |
3540 | rsp->LastWriteTime = cpu_to_le64(time); | |
3541 | time = ksmbd_UnixTimeToNT(stat.ctime); | |
3542 | rsp->ChangeTime = cpu_to_le64(time); | |
3543 | rsp->AllocationSize = S_ISDIR(stat.mode) ? 0 : | |
3544 | cpu_to_le64(stat.blocks << 9); | |
3545 | rsp->EndofFile = S_ISDIR(stat.mode) ? 0 : cpu_to_le64(stat.size); | |
3546 | rsp->FileAttributes = fp->f_ci->m_fattr; | |
3547 | ||
3548 | rsp->Reserved2 = 0; | |
3549 | ||
2d004c6c PA |
3550 | rsp->PersistentFileId = fp->persistent_id; |
3551 | rsp->VolatileFileId = fp->volatile_id; | |
e2f34481 NJ |
3552 | |
3553 | rsp->CreateContextsOffset = 0; | |
3554 | rsp->CreateContextsLength = 0; | |
e2b76ab8 | 3555 | iov_len = offsetof(struct smb2_create_rsp, Buffer); |
e2f34481 NJ |
3556 | |
3557 | /* If lease is request send lease context response */ | |
3558 | if (opinfo && opinfo->is_lease) { | |
3559 | struct create_context *lease_ccontext; | |
3560 | ||
3561 | ksmbd_debug(SMB, "lease granted on(%s) lease state 0x%x\n", | |
070fb21e | 3562 | name, opinfo->o_lease->state); |
e2f34481 NJ |
3563 | rsp->OplockLevel = SMB2_OPLOCK_LEVEL_LEASE; |
3564 | ||
3565 | lease_ccontext = (struct create_context *)rsp->Buffer; | |
3566 | contxt_cnt++; | |
3567 | create_lease_buf(rsp->Buffer, opinfo->o_lease); | |
3568 | le32_add_cpu(&rsp->CreateContextsLength, | |
3569 | conn->vals->create_lease_size); | |
e2b76ab8 | 3570 | iov_len += conn->vals->create_lease_size; |
e2f34481 NJ |
3571 | next_ptr = &lease_ccontext->Next; |
3572 | next_off = conn->vals->create_lease_size; | |
3573 | } | |
3574 | ||
e2f34481 NJ |
3575 | if (maximal_access_ctxt) { |
3576 | struct create_context *mxac_ccontext; | |
3577 | ||
3578 | if (maximal_access == 0) | |
4609e1f1 | 3579 | ksmbd_vfs_query_maximal_access(idmap, |
af34983e | 3580 | path.dentry, |
e2f34481 NJ |
3581 | &maximal_access); |
3582 | mxac_ccontext = (struct create_context *)(rsp->Buffer + | |
3583 | le32_to_cpu(rsp->CreateContextsLength)); | |
3584 | contxt_cnt++; | |
3585 | create_mxac_rsp_buf(rsp->Buffer + | |
3586 | le32_to_cpu(rsp->CreateContextsLength), | |
3587 | le32_to_cpu(maximal_access)); | |
3588 | le32_add_cpu(&rsp->CreateContextsLength, | |
3589 | conn->vals->create_mxac_size); | |
e2b76ab8 | 3590 | iov_len += conn->vals->create_mxac_size; |
e2f34481 NJ |
3591 | if (next_ptr) |
3592 | *next_ptr = cpu_to_le32(next_off); | |
3593 | next_ptr = &mxac_ccontext->Next; | |
3594 | next_off = conn->vals->create_mxac_size; | |
3595 | } | |
3596 | ||
3597 | if (query_disk_id) { | |
3598 | struct create_context *disk_id_ccontext; | |
3599 | ||
3600 | disk_id_ccontext = (struct create_context *)(rsp->Buffer + | |
3601 | le32_to_cpu(rsp->CreateContextsLength)); | |
3602 | contxt_cnt++; | |
3603 | create_disk_id_rsp_buf(rsp->Buffer + | |
3604 | le32_to_cpu(rsp->CreateContextsLength), | |
3605 | stat.ino, tcon->id); | |
3606 | le32_add_cpu(&rsp->CreateContextsLength, | |
3607 | conn->vals->create_disk_id_size); | |
e2b76ab8 | 3608 | iov_len += conn->vals->create_disk_id_size; |
e2f34481 NJ |
3609 | if (next_ptr) |
3610 | *next_ptr = cpu_to_le32(next_off); | |
3611 | next_ptr = &disk_id_ccontext->Next; | |
3612 | next_off = conn->vals->create_disk_id_size; | |
3613 | } | |
3614 | ||
c8efcc78 NJ |
3615 | if (dh_info.type == DURABLE_REQ || dh_info.type == DURABLE_REQ_V2) { |
3616 | struct create_context *durable_ccontext; | |
3617 | ||
3618 | durable_ccontext = (struct create_context *)(rsp->Buffer + | |
3619 | le32_to_cpu(rsp->CreateContextsLength)); | |
3620 | contxt_cnt++; | |
3621 | if (dh_info.type == DURABLE_REQ) { | |
3622 | create_durable_rsp_buf(rsp->Buffer + | |
3623 | le32_to_cpu(rsp->CreateContextsLength)); | |
3624 | le32_add_cpu(&rsp->CreateContextsLength, | |
3625 | conn->vals->create_durable_size); | |
3626 | iov_len += conn->vals->create_durable_size; | |
3627 | } else { | |
3628 | create_durable_v2_rsp_buf(rsp->Buffer + | |
3629 | le32_to_cpu(rsp->CreateContextsLength), | |
3630 | fp); | |
3631 | le32_add_cpu(&rsp->CreateContextsLength, | |
3632 | conn->vals->create_durable_v2_size); | |
3633 | iov_len += conn->vals->create_durable_v2_size; | |
3634 | } | |
3635 | ||
3636 | if (next_ptr) | |
3637 | *next_ptr = cpu_to_le32(next_off); | |
3638 | next_ptr = &durable_ccontext->Next; | |
3639 | next_off = conn->vals->create_durable_size; | |
3640 | } | |
3641 | ||
e2f34481 | 3642 | if (posix_ctxt) { |
e2f34481 NJ |
3643 | contxt_cnt++; |
3644 | create_posix_rsp_buf(rsp->Buffer + | |
3645 | le32_to_cpu(rsp->CreateContextsLength), | |
3646 | fp); | |
3647 | le32_add_cpu(&rsp->CreateContextsLength, | |
3648 | conn->vals->create_posix_size); | |
e2b76ab8 | 3649 | iov_len += conn->vals->create_posix_size; |
e2f34481 NJ |
3650 | if (next_ptr) |
3651 | *next_ptr = cpu_to_le32(next_off); | |
3652 | } | |
3653 | ||
3654 | if (contxt_cnt > 0) { | |
3655 | rsp->CreateContextsOffset = | |
cb451720 | 3656 | cpu_to_le32(offsetof(struct smb2_create_rsp, Buffer)); |
e2f34481 NJ |
3657 | } |
3658 | ||
3659 | err_out: | |
2e450920 | 3660 | if (rc && (file_present || created)) |
864fb5d3 NJ |
3661 | ksmbd_vfs_kern_path_unlock(&parent_path, &path); |
3662 | ||
e2f34481 | 3663 | err_out1: |
2e450920 NJ |
3664 | ksmbd_revert_fsids(work); |
3665 | ||
3666 | err_out2: | |
5a7ee91d NJ |
3667 | if (!rc) { |
3668 | ksmbd_update_fstate(&work->sess->file_table, fp, FP_INITED); | |
e2b76ab8 | 3669 | rc = ksmbd_iov_pin_rsp(work, (void *)rsp, iov_len); |
5a7ee91d | 3670 | } |
e2f34481 NJ |
3671 | if (rc) { |
3672 | if (rc == -EINVAL) | |
3673 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; | |
3674 | else if (rc == -EOPNOTSUPP) | |
3675 | rsp->hdr.Status = STATUS_NOT_SUPPORTED; | |
265fd199 | 3676 | else if (rc == -EACCES || rc == -ESTALE || rc == -EXDEV) |
e2f34481 NJ |
3677 | rsp->hdr.Status = STATUS_ACCESS_DENIED; |
3678 | else if (rc == -ENOENT) | |
3679 | rsp->hdr.Status = STATUS_OBJECT_NAME_INVALID; | |
3680 | else if (rc == -EPERM) | |
3681 | rsp->hdr.Status = STATUS_SHARING_VIOLATION; | |
3682 | else if (rc == -EBUSY) | |
3683 | rsp->hdr.Status = STATUS_DELETE_PENDING; | |
3684 | else if (rc == -EBADF) | |
3685 | rsp->hdr.Status = STATUS_OBJECT_NAME_NOT_FOUND; | |
3686 | else if (rc == -ENOEXEC) | |
3687 | rsp->hdr.Status = STATUS_DUPLICATE_OBJECTID; | |
3688 | else if (rc == -ENXIO) | |
3689 | rsp->hdr.Status = STATUS_NO_SUCH_DEVICE; | |
3690 | else if (rc == -EEXIST) | |
3691 | rsp->hdr.Status = STATUS_OBJECT_NAME_COLLISION; | |
3692 | else if (rc == -EMFILE) | |
3693 | rsp->hdr.Status = STATUS_INSUFFICIENT_RESOURCES; | |
3694 | if (!rsp->hdr.Status) | |
3695 | rsp->hdr.Status = STATUS_UNEXPECTED_IO_ERROR; | |
3696 | ||
e2f34481 NJ |
3697 | if (fp) |
3698 | ksmbd_fd_put(work, fp); | |
3699 | smb2_set_err_rsp(work); | |
3700 | ksmbd_debug(SMB, "Error response: %x\n", rsp->hdr.Status); | |
3701 | } | |
3702 | ||
50f500b7 | 3703 | kfree(name); |
e2f34481 NJ |
3704 | kfree(lc); |
3705 | ||
3706 | return 0; | |
3707 | } | |
3708 | ||
3709 | static int readdir_info_level_struct_sz(int info_level) | |
3710 | { | |
3711 | switch (info_level) { | |
3712 | case FILE_FULL_DIRECTORY_INFORMATION: | |
3713 | return sizeof(struct file_full_directory_info); | |
3714 | case FILE_BOTH_DIRECTORY_INFORMATION: | |
3715 | return sizeof(struct file_both_directory_info); | |
3716 | case FILE_DIRECTORY_INFORMATION: | |
3717 | return sizeof(struct file_directory_info); | |
3718 | case FILE_NAMES_INFORMATION: | |
3719 | return sizeof(struct file_names_info); | |
3720 | case FILEID_FULL_DIRECTORY_INFORMATION: | |
3721 | return sizeof(struct file_id_full_dir_info); | |
3722 | case FILEID_BOTH_DIRECTORY_INFORMATION: | |
3723 | return sizeof(struct file_id_both_directory_info); | |
3724 | case SMB_FIND_FILE_POSIX_INFO: | |
3725 | return sizeof(struct smb2_posix_info); | |
3726 | default: | |
3727 | return -EOPNOTSUPP; | |
3728 | } | |
3729 | } | |
3730 | ||
3731 | static int dentry_name(struct ksmbd_dir_info *d_info, int info_level) | |
3732 | { | |
3733 | switch (info_level) { | |
3734 | case FILE_FULL_DIRECTORY_INFORMATION: | |
3735 | { | |
3736 | struct file_full_directory_info *ffdinfo; | |
3737 | ||
3738 | ffdinfo = (struct file_full_directory_info *)d_info->rptr; | |
3739 | d_info->rptr += le32_to_cpu(ffdinfo->NextEntryOffset); | |
3740 | d_info->name = ffdinfo->FileName; | |
3741 | d_info->name_len = le32_to_cpu(ffdinfo->FileNameLength); | |
3742 | return 0; | |
3743 | } | |
3744 | case FILE_BOTH_DIRECTORY_INFORMATION: | |
3745 | { | |
3746 | struct file_both_directory_info *fbdinfo; | |
3747 | ||
3748 | fbdinfo = (struct file_both_directory_info *)d_info->rptr; | |
3749 | d_info->rptr += le32_to_cpu(fbdinfo->NextEntryOffset); | |
3750 | d_info->name = fbdinfo->FileName; | |
3751 | d_info->name_len = le32_to_cpu(fbdinfo->FileNameLength); | |
3752 | return 0; | |
3753 | } | |
3754 | case FILE_DIRECTORY_INFORMATION: | |
3755 | { | |
3756 | struct file_directory_info *fdinfo; | |
3757 | ||
3758 | fdinfo = (struct file_directory_info *)d_info->rptr; | |
3759 | d_info->rptr += le32_to_cpu(fdinfo->NextEntryOffset); | |
3760 | d_info->name = fdinfo->FileName; | |
3761 | d_info->name_len = le32_to_cpu(fdinfo->FileNameLength); | |
3762 | return 0; | |
3763 | } | |
3764 | case FILE_NAMES_INFORMATION: | |
3765 | { | |
3766 | struct file_names_info *fninfo; | |
3767 | ||
3768 | fninfo = (struct file_names_info *)d_info->rptr; | |
3769 | d_info->rptr += le32_to_cpu(fninfo->NextEntryOffset); | |
3770 | d_info->name = fninfo->FileName; | |
3771 | d_info->name_len = le32_to_cpu(fninfo->FileNameLength); | |
3772 | return 0; | |
3773 | } | |
3774 | case FILEID_FULL_DIRECTORY_INFORMATION: | |
3775 | { | |
3776 | struct file_id_full_dir_info *dinfo; | |
3777 | ||
3778 | dinfo = (struct file_id_full_dir_info *)d_info->rptr; | |
3779 | d_info->rptr += le32_to_cpu(dinfo->NextEntryOffset); | |
3780 | d_info->name = dinfo->FileName; | |
3781 | d_info->name_len = le32_to_cpu(dinfo->FileNameLength); | |
3782 | return 0; | |
3783 | } | |
3784 | case FILEID_BOTH_DIRECTORY_INFORMATION: | |
3785 | { | |
3786 | struct file_id_both_directory_info *fibdinfo; | |
3787 | ||
3788 | fibdinfo = (struct file_id_both_directory_info *)d_info->rptr; | |
3789 | d_info->rptr += le32_to_cpu(fibdinfo->NextEntryOffset); | |
3790 | d_info->name = fibdinfo->FileName; | |
3791 | d_info->name_len = le32_to_cpu(fibdinfo->FileNameLength); | |
3792 | return 0; | |
3793 | } | |
3794 | case SMB_FIND_FILE_POSIX_INFO: | |
3795 | { | |
3796 | struct smb2_posix_info *posix_info; | |
3797 | ||
3798 | posix_info = (struct smb2_posix_info *)d_info->rptr; | |
3799 | d_info->rptr += le32_to_cpu(posix_info->NextEntryOffset); | |
3800 | d_info->name = posix_info->name; | |
3801 | d_info->name_len = le32_to_cpu(posix_info->name_len); | |
3802 | return 0; | |
3803 | } | |
3804 | default: | |
3805 | return -EINVAL; | |
3806 | } | |
3807 | } | |
3808 | ||
3809 | /** | |
3810 | * smb2_populate_readdir_entry() - encode directory entry in smb2 response | |
3811 | * buffer | |
3812 | * @conn: connection instance | |
3813 | * @info_level: smb information level | |
3814 | * @d_info: structure included variables for query dir | |
3815 | * @ksmbd_kstat: ksmbd wrapper of dirent stat information | |
3816 | * | |
3817 | * if directory has many entries, find first can't read it fully. | |
3818 | * find next might be called multiple times to read remaining dir entries | |
3819 | * | |
3820 | * Return: 0 on success, otherwise error | |
3821 | */ | |
64b39f4a | 3822 | static int smb2_populate_readdir_entry(struct ksmbd_conn *conn, int info_level, |
070fb21e NJ |
3823 | struct ksmbd_dir_info *d_info, |
3824 | struct ksmbd_kstat *ksmbd_kstat) | |
e2f34481 NJ |
3825 | { |
3826 | int next_entry_offset = 0; | |
3827 | char *conv_name; | |
3828 | int conv_len; | |
3829 | void *kstat; | |
dac0ec6e | 3830 | int struct_sz, rc = 0; |
e2f34481 NJ |
3831 | |
3832 | conv_name = ksmbd_convert_dir_info_name(d_info, | |
3833 | conn->local_nls, | |
3834 | &conv_len); | |
3835 | if (!conv_name) | |
3836 | return -ENOMEM; | |
3837 | ||
3838 | /* Somehow the name has only terminating NULL bytes */ | |
3839 | if (conv_len < 0) { | |
dac0ec6e NJ |
3840 | rc = -EINVAL; |
3841 | goto free_conv_name; | |
e2f34481 NJ |
3842 | } |
3843 | ||
d272e01f | 3844 | struct_sz = readdir_info_level_struct_sz(info_level) + conv_len; |
04e26094 NJ |
3845 | next_entry_offset = ALIGN(struct_sz, KSMBD_DIR_INFO_ALIGNMENT); |
3846 | d_info->last_entry_off_align = next_entry_offset - struct_sz; | |
e2f34481 NJ |
3847 | |
3848 | if (next_entry_offset > d_info->out_buf_len) { | |
3849 | d_info->out_buf_len = 0; | |
dac0ec6e NJ |
3850 | rc = -ENOSPC; |
3851 | goto free_conv_name; | |
e2f34481 NJ |
3852 | } |
3853 | ||
3854 | kstat = d_info->wptr; | |
3855 | if (info_level != FILE_NAMES_INFORMATION) | |
3856 | kstat = ksmbd_vfs_init_kstat(&d_info->wptr, ksmbd_kstat); | |
3857 | ||
3858 | switch (info_level) { | |
3859 | case FILE_FULL_DIRECTORY_INFORMATION: | |
3860 | { | |
3861 | struct file_full_directory_info *ffdinfo; | |
3862 | ||
3863 | ffdinfo = (struct file_full_directory_info *)kstat; | |
3864 | ffdinfo->FileNameLength = cpu_to_le32(conv_len); | |
3865 | ffdinfo->EaSize = | |
3866 | smb2_get_reparse_tag_special_file(ksmbd_kstat->kstat->mode); | |
3867 | if (ffdinfo->EaSize) | |
26a2787d | 3868 | ffdinfo->ExtFileAttributes = FILE_ATTRIBUTE_REPARSE_POINT_LE; |
e2f34481 | 3869 | if (d_info->hide_dot_file && d_info->name[0] == '.') |
26a2787d | 3870 | ffdinfo->ExtFileAttributes |= FILE_ATTRIBUTE_HIDDEN_LE; |
e2f34481 NJ |
3871 | memcpy(ffdinfo->FileName, conv_name, conv_len); |
3872 | ffdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); | |
3873 | break; | |
3874 | } | |
3875 | case FILE_BOTH_DIRECTORY_INFORMATION: | |
3876 | { | |
3877 | struct file_both_directory_info *fbdinfo; | |
3878 | ||
3879 | fbdinfo = (struct file_both_directory_info *)kstat; | |
3880 | fbdinfo->FileNameLength = cpu_to_le32(conv_len); | |
3881 | fbdinfo->EaSize = | |
3882 | smb2_get_reparse_tag_special_file(ksmbd_kstat->kstat->mode); | |
3883 | if (fbdinfo->EaSize) | |
26a2787d | 3884 | fbdinfo->ExtFileAttributes = FILE_ATTRIBUTE_REPARSE_POINT_LE; |
e2f34481 NJ |
3885 | fbdinfo->ShortNameLength = 0; |
3886 | fbdinfo->Reserved = 0; | |
3887 | if (d_info->hide_dot_file && d_info->name[0] == '.') | |
26a2787d | 3888 | fbdinfo->ExtFileAttributes |= FILE_ATTRIBUTE_HIDDEN_LE; |
e2f34481 NJ |
3889 | memcpy(fbdinfo->FileName, conv_name, conv_len); |
3890 | fbdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); | |
3891 | break; | |
3892 | } | |
3893 | case FILE_DIRECTORY_INFORMATION: | |
3894 | { | |
3895 | struct file_directory_info *fdinfo; | |
3896 | ||
3897 | fdinfo = (struct file_directory_info *)kstat; | |
3898 | fdinfo->FileNameLength = cpu_to_le32(conv_len); | |
3899 | if (d_info->hide_dot_file && d_info->name[0] == '.') | |
26a2787d | 3900 | fdinfo->ExtFileAttributes |= FILE_ATTRIBUTE_HIDDEN_LE; |
e2f34481 NJ |
3901 | memcpy(fdinfo->FileName, conv_name, conv_len); |
3902 | fdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); | |
3903 | break; | |
3904 | } | |
3905 | case FILE_NAMES_INFORMATION: | |
3906 | { | |
3907 | struct file_names_info *fninfo; | |
3908 | ||
3909 | fninfo = (struct file_names_info *)kstat; | |
3910 | fninfo->FileNameLength = cpu_to_le32(conv_len); | |
3911 | memcpy(fninfo->FileName, conv_name, conv_len); | |
3912 | fninfo->NextEntryOffset = cpu_to_le32(next_entry_offset); | |
3913 | break; | |
3914 | } | |
3915 | case FILEID_FULL_DIRECTORY_INFORMATION: | |
3916 | { | |
3917 | struct file_id_full_dir_info *dinfo; | |
3918 | ||
3919 | dinfo = (struct file_id_full_dir_info *)kstat; | |
3920 | dinfo->FileNameLength = cpu_to_le32(conv_len); | |
3921 | dinfo->EaSize = | |
3922 | smb2_get_reparse_tag_special_file(ksmbd_kstat->kstat->mode); | |
3923 | if (dinfo->EaSize) | |
26a2787d | 3924 | dinfo->ExtFileAttributes = FILE_ATTRIBUTE_REPARSE_POINT_LE; |
e2f34481 NJ |
3925 | dinfo->Reserved = 0; |
3926 | dinfo->UniqueId = cpu_to_le64(ksmbd_kstat->kstat->ino); | |
3927 | if (d_info->hide_dot_file && d_info->name[0] == '.') | |
26a2787d | 3928 | dinfo->ExtFileAttributes |= FILE_ATTRIBUTE_HIDDEN_LE; |
e2f34481 NJ |
3929 | memcpy(dinfo->FileName, conv_name, conv_len); |
3930 | dinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); | |
3931 | break; | |
3932 | } | |
3933 | case FILEID_BOTH_DIRECTORY_INFORMATION: | |
3934 | { | |
3935 | struct file_id_both_directory_info *fibdinfo; | |
3936 | ||
3937 | fibdinfo = (struct file_id_both_directory_info *)kstat; | |
3938 | fibdinfo->FileNameLength = cpu_to_le32(conv_len); | |
3939 | fibdinfo->EaSize = | |
3940 | smb2_get_reparse_tag_special_file(ksmbd_kstat->kstat->mode); | |
3941 | if (fibdinfo->EaSize) | |
26a2787d | 3942 | fibdinfo->ExtFileAttributes = FILE_ATTRIBUTE_REPARSE_POINT_LE; |
e2f34481 NJ |
3943 | fibdinfo->UniqueId = cpu_to_le64(ksmbd_kstat->kstat->ino); |
3944 | fibdinfo->ShortNameLength = 0; | |
3945 | fibdinfo->Reserved = 0; | |
3946 | fibdinfo->Reserved2 = cpu_to_le16(0); | |
3947 | if (d_info->hide_dot_file && d_info->name[0] == '.') | |
26a2787d | 3948 | fibdinfo->ExtFileAttributes |= FILE_ATTRIBUTE_HIDDEN_LE; |
e2f34481 NJ |
3949 | memcpy(fibdinfo->FileName, conv_name, conv_len); |
3950 | fibdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); | |
3951 | break; | |
3952 | } | |
3953 | case SMB_FIND_FILE_POSIX_INFO: | |
3954 | { | |
3955 | struct smb2_posix_info *posix_info; | |
3956 | u64 time; | |
3957 | ||
3958 | posix_info = (struct smb2_posix_info *)kstat; | |
3959 | posix_info->Ignored = 0; | |
3960 | posix_info->CreationTime = cpu_to_le64(ksmbd_kstat->create_time); | |
3961 | time = ksmbd_UnixTimeToNT(ksmbd_kstat->kstat->ctime); | |
3962 | posix_info->ChangeTime = cpu_to_le64(time); | |
3963 | time = ksmbd_UnixTimeToNT(ksmbd_kstat->kstat->atime); | |
3964 | posix_info->LastAccessTime = cpu_to_le64(time); | |
3965 | time = ksmbd_UnixTimeToNT(ksmbd_kstat->kstat->mtime); | |
3966 | posix_info->LastWriteTime = cpu_to_le64(time); | |
3967 | posix_info->EndOfFile = cpu_to_le64(ksmbd_kstat->kstat->size); | |
3968 | posix_info->AllocationSize = cpu_to_le64(ksmbd_kstat->kstat->blocks << 9); | |
3969 | posix_info->DeviceId = cpu_to_le32(ksmbd_kstat->kstat->rdev); | |
3970 | posix_info->HardLinks = cpu_to_le32(ksmbd_kstat->kstat->nlink); | |
f6c2b201 | 3971 | posix_info->Mode = cpu_to_le32(ksmbd_kstat->kstat->mode & 0777); |
e2f34481 NJ |
3972 | posix_info->Inode = cpu_to_le64(ksmbd_kstat->kstat->ino); |
3973 | posix_info->DosAttributes = | |
26a2787d RS |
3974 | S_ISDIR(ksmbd_kstat->kstat->mode) ? |
3975 | FILE_ATTRIBUTE_DIRECTORY_LE : FILE_ATTRIBUTE_ARCHIVE_LE; | |
e2f34481 | 3976 | if (d_info->hide_dot_file && d_info->name[0] == '.') |
26a2787d | 3977 | posix_info->DosAttributes |= FILE_ATTRIBUTE_HIDDEN_LE; |
5609bdd9 NJ |
3978 | /* |
3979 | * SidBuffer(32) contain two sids(Domain sid(16), UNIX group sid(16)). | |
3980 | * UNIX sid(16) = revision(1) + num_subauth(1) + authority(6) + | |
3981 | * sub_auth(4 * 1(num_subauth)) + RID(4). | |
3982 | */ | |
475d6f98 | 3983 | id_to_sid(from_kuid_munged(&init_user_ns, ksmbd_kstat->kstat->uid), |
5609bdd9 | 3984 | SIDUNIX_USER, (struct smb_sid *)&posix_info->SidBuffer[0]); |
475d6f98 | 3985 | id_to_sid(from_kgid_munged(&init_user_ns, ksmbd_kstat->kstat->gid), |
5609bdd9 | 3986 | SIDUNIX_GROUP, (struct smb_sid *)&posix_info->SidBuffer[16]); |
e2f34481 NJ |
3987 | memcpy(posix_info->name, conv_name, conv_len); |
3988 | posix_info->name_len = cpu_to_le32(conv_len); | |
3989 | posix_info->NextEntryOffset = cpu_to_le32(next_entry_offset); | |
3990 | break; | |
3991 | } | |
3992 | ||
3993 | } /* switch (info_level) */ | |
3994 | ||
3995 | d_info->last_entry_offset = d_info->data_count; | |
3996 | d_info->data_count += next_entry_offset; | |
e7735c85 | 3997 | d_info->out_buf_len -= next_entry_offset; |
e2f34481 | 3998 | d_info->wptr += next_entry_offset; |
e2f34481 NJ |
3999 | |
4000 | ksmbd_debug(SMB, | |
070fb21e NJ |
4001 | "info_level : %d, buf_len :%d, next_offset : %d, data_count : %d\n", |
4002 | info_level, d_info->out_buf_len, | |
4003 | next_entry_offset, d_info->data_count); | |
e2f34481 | 4004 | |
dac0ec6e NJ |
4005 | free_conv_name: |
4006 | kfree(conv_name); | |
4007 | return rc; | |
e2f34481 NJ |
4008 | } |
4009 | ||
4010 | struct smb2_query_dir_private { | |
4011 | struct ksmbd_work *work; | |
4012 | char *search_pattern; | |
4013 | struct ksmbd_file *dir_fp; | |
4014 | ||
4015 | struct ksmbd_dir_info *d_info; | |
4016 | int info_level; | |
4017 | }; | |
4018 | ||
4019 | static void lock_dir(struct ksmbd_file *dir_fp) | |
4020 | { | |
4021 | struct dentry *dir = dir_fp->filp->f_path.dentry; | |
4022 | ||
4023 | inode_lock_nested(d_inode(dir), I_MUTEX_PARENT); | |
4024 | } | |
4025 | ||
4026 | static void unlock_dir(struct ksmbd_file *dir_fp) | |
4027 | { | |
4028 | struct dentry *dir = dir_fp->filp->f_path.dentry; | |
4029 | ||
4030 | inode_unlock(d_inode(dir)); | |
4031 | } | |
4032 | ||
4033 | static int process_query_dir_entries(struct smb2_query_dir_private *priv) | |
4034 | { | |
b74d24f7 | 4035 | struct mnt_idmap *idmap = file_mnt_idmap(priv->dir_fp->filp); |
e2f34481 NJ |
4036 | struct kstat kstat; |
4037 | struct ksmbd_kstat ksmbd_kstat; | |
4038 | int rc; | |
4039 | int i; | |
4040 | ||
4041 | for (i = 0; i < priv->d_info->num_entry; i++) { | |
4042 | struct dentry *dent; | |
4043 | ||
4044 | if (dentry_name(priv->d_info, priv->info_level)) | |
4045 | return -EINVAL; | |
4046 | ||
4047 | lock_dir(priv->dir_fp); | |
4609e1f1 | 4048 | dent = lookup_one(idmap, priv->d_info->name, |
da1e7ada CB |
4049 | priv->dir_fp->filp->f_path.dentry, |
4050 | priv->d_info->name_len); | |
e2f34481 NJ |
4051 | unlock_dir(priv->dir_fp); |
4052 | ||
4053 | if (IS_ERR(dent)) { | |
4054 | ksmbd_debug(SMB, "Cannot lookup `%s' [%ld]\n", | |
070fb21e NJ |
4055 | priv->d_info->name, |
4056 | PTR_ERR(dent)); | |
e2f34481 NJ |
4057 | continue; |
4058 | } | |
4059 | if (unlikely(d_is_negative(dent))) { | |
4060 | dput(dent); | |
4061 | ksmbd_debug(SMB, "Negative dentry `%s'\n", | |
4062 | priv->d_info->name); | |
4063 | continue; | |
4064 | } | |
4065 | ||
4066 | ksmbd_kstat.kstat = &kstat; | |
5614c8c4 MM |
4067 | if (priv->info_level != FILE_NAMES_INFORMATION) { |
4068 | rc = ksmbd_vfs_fill_dentry_attrs(priv->work, | |
4069 | idmap, | |
4070 | dent, | |
4071 | &ksmbd_kstat); | |
4072 | if (rc) { | |
4073 | dput(dent); | |
4074 | continue; | |
4075 | } | |
4076 | } | |
e2f34481 NJ |
4077 | |
4078 | rc = smb2_populate_readdir_entry(priv->work->conn, | |
4079 | priv->info_level, | |
4080 | priv->d_info, | |
4081 | &ksmbd_kstat); | |
4082 | dput(dent); | |
4083 | if (rc) | |
4084 | return rc; | |
4085 | } | |
4086 | return 0; | |
4087 | } | |
4088 | ||
4089 | static int reserve_populate_dentry(struct ksmbd_dir_info *d_info, | |
070fb21e | 4090 | int info_level) |
e2f34481 NJ |
4091 | { |
4092 | int struct_sz; | |
4093 | int conv_len; | |
4094 | int next_entry_offset; | |
4095 | ||
4096 | struct_sz = readdir_info_level_struct_sz(info_level); | |
4097 | if (struct_sz == -EOPNOTSUPP) | |
4098 | return -EOPNOTSUPP; | |
4099 | ||
4100 | conv_len = (d_info->name_len + 1) * 2; | |
d272e01f | 4101 | next_entry_offset = ALIGN(struct_sz + conv_len, |
e2f34481 NJ |
4102 | KSMBD_DIR_INFO_ALIGNMENT); |
4103 | ||
4104 | if (next_entry_offset > d_info->out_buf_len) { | |
4105 | d_info->out_buf_len = 0; | |
4106 | return -ENOSPC; | |
4107 | } | |
4108 | ||
4109 | switch (info_level) { | |
4110 | case FILE_FULL_DIRECTORY_INFORMATION: | |
4111 | { | |
4112 | struct file_full_directory_info *ffdinfo; | |
4113 | ||
4114 | ffdinfo = (struct file_full_directory_info *)d_info->wptr; | |
4115 | memcpy(ffdinfo->FileName, d_info->name, d_info->name_len); | |
4116 | ffdinfo->FileName[d_info->name_len] = 0x00; | |
4117 | ffdinfo->FileNameLength = cpu_to_le32(d_info->name_len); | |
4118 | ffdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); | |
4119 | break; | |
4120 | } | |
4121 | case FILE_BOTH_DIRECTORY_INFORMATION: | |
4122 | { | |
4123 | struct file_both_directory_info *fbdinfo; | |
4124 | ||
4125 | fbdinfo = (struct file_both_directory_info *)d_info->wptr; | |
4126 | memcpy(fbdinfo->FileName, d_info->name, d_info->name_len); | |
4127 | fbdinfo->FileName[d_info->name_len] = 0x00; | |
4128 | fbdinfo->FileNameLength = cpu_to_le32(d_info->name_len); | |
4129 | fbdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); | |
4130 | break; | |
4131 | } | |
4132 | case FILE_DIRECTORY_INFORMATION: | |
4133 | { | |
4134 | struct file_directory_info *fdinfo; | |
4135 | ||
4136 | fdinfo = (struct file_directory_info *)d_info->wptr; | |
4137 | memcpy(fdinfo->FileName, d_info->name, d_info->name_len); | |
4138 | fdinfo->FileName[d_info->name_len] = 0x00; | |
4139 | fdinfo->FileNameLength = cpu_to_le32(d_info->name_len); | |
4140 | fdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); | |
4141 | break; | |
4142 | } | |
4143 | case FILE_NAMES_INFORMATION: | |
4144 | { | |
4145 | struct file_names_info *fninfo; | |
4146 | ||
4147 | fninfo = (struct file_names_info *)d_info->wptr; | |
4148 | memcpy(fninfo->FileName, d_info->name, d_info->name_len); | |
4149 | fninfo->FileName[d_info->name_len] = 0x00; | |
4150 | fninfo->FileNameLength = cpu_to_le32(d_info->name_len); | |
4151 | fninfo->NextEntryOffset = cpu_to_le32(next_entry_offset); | |
4152 | break; | |
4153 | } | |
4154 | case FILEID_FULL_DIRECTORY_INFORMATION: | |
4155 | { | |
4156 | struct file_id_full_dir_info *dinfo; | |
4157 | ||
4158 | dinfo = (struct file_id_full_dir_info *)d_info->wptr; | |
4159 | memcpy(dinfo->FileName, d_info->name, d_info->name_len); | |
4160 | dinfo->FileName[d_info->name_len] = 0x00; | |
4161 | dinfo->FileNameLength = cpu_to_le32(d_info->name_len); | |
4162 | dinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); | |
4163 | break; | |
4164 | } | |
4165 | case FILEID_BOTH_DIRECTORY_INFORMATION: | |
4166 | { | |
4167 | struct file_id_both_directory_info *fibdinfo; | |
4168 | ||
4169 | fibdinfo = (struct file_id_both_directory_info *)d_info->wptr; | |
4170 | memcpy(fibdinfo->FileName, d_info->name, d_info->name_len); | |
4171 | fibdinfo->FileName[d_info->name_len] = 0x00; | |
4172 | fibdinfo->FileNameLength = cpu_to_le32(d_info->name_len); | |
4173 | fibdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); | |
4174 | break; | |
4175 | } | |
4176 | case SMB_FIND_FILE_POSIX_INFO: | |
4177 | { | |
4178 | struct smb2_posix_info *posix_info; | |
4179 | ||
4180 | posix_info = (struct smb2_posix_info *)d_info->wptr; | |
4181 | memcpy(posix_info->name, d_info->name, d_info->name_len); | |
4182 | posix_info->name[d_info->name_len] = 0x00; | |
4183 | posix_info->name_len = cpu_to_le32(d_info->name_len); | |
4184 | posix_info->NextEntryOffset = | |
4185 | cpu_to_le32(next_entry_offset); | |
4186 | break; | |
4187 | } | |
4188 | } /* switch (info_level) */ | |
4189 | ||
4190 | d_info->num_entry++; | |
4191 | d_info->out_buf_len -= next_entry_offset; | |
4192 | d_info->wptr += next_entry_offset; | |
4193 | return 0; | |
4194 | } | |
4195 | ||
25885a35 | 4196 | static bool __query_dir(struct dir_context *ctx, const char *name, int namlen, |
070fb21e | 4197 | loff_t offset, u64 ino, unsigned int d_type) |
e2f34481 NJ |
4198 | { |
4199 | struct ksmbd_readdir_data *buf; | |
4200 | struct smb2_query_dir_private *priv; | |
4201 | struct ksmbd_dir_info *d_info; | |
4202 | int rc; | |
4203 | ||
4204 | buf = container_of(ctx, struct ksmbd_readdir_data, ctx); | |
4205 | priv = buf->private; | |
4206 | d_info = priv->d_info; | |
4207 | ||
4208 | /* dot and dotdot entries are already reserved */ | |
4209 | if (!strcmp(".", name) || !strcmp("..", name)) | |
25885a35 | 4210 | return true; |
e2f34481 | 4211 | if (ksmbd_share_veto_filename(priv->work->tcon->share_conf, name)) |
25885a35 | 4212 | return true; |
b24c9335 | 4213 | if (!match_pattern(name, namlen, priv->search_pattern)) |
25885a35 | 4214 | return true; |
e2f34481 NJ |
4215 | |
4216 | d_info->name = name; | |
4217 | d_info->name_len = namlen; | |
4218 | rc = reserve_populate_dentry(d_info, priv->info_level); | |
4219 | if (rc) | |
25885a35 AV |
4220 | return false; |
4221 | if (d_info->flags & SMB2_RETURN_SINGLE_ENTRY) | |
e2f34481 | 4222 | d_info->out_buf_len = 0; |
25885a35 | 4223 | return true; |
e2f34481 NJ |
4224 | } |
4225 | ||
e2f34481 NJ |
4226 | static int verify_info_level(int info_level) |
4227 | { | |
4228 | switch (info_level) { | |
4229 | case FILE_FULL_DIRECTORY_INFORMATION: | |
4230 | case FILE_BOTH_DIRECTORY_INFORMATION: | |
4231 | case FILE_DIRECTORY_INFORMATION: | |
4232 | case FILE_NAMES_INFORMATION: | |
4233 | case FILEID_FULL_DIRECTORY_INFORMATION: | |
4234 | case FILEID_BOTH_DIRECTORY_INFORMATION: | |
4235 | case SMB_FIND_FILE_POSIX_INFO: | |
4236 | break; | |
4237 | default: | |
4238 | return -EOPNOTSUPP; | |
4239 | } | |
4240 | ||
4241 | return 0; | |
4242 | } | |
4243 | ||
8f054118 NJ |
4244 | static int smb2_resp_buf_len(struct ksmbd_work *work, unsigned short hdr2_len) |
4245 | { | |
4246 | int free_len; | |
4247 | ||
4248 | free_len = (int)(work->response_sz - | |
4249 | (get_rfc1002_len(work->response_buf) + 4)) - hdr2_len; | |
4250 | return free_len; | |
4251 | } | |
4252 | ||
34061d6b HL |
4253 | static int smb2_calc_max_out_buf_len(struct ksmbd_work *work, |
4254 | unsigned short hdr2_len, | |
4255 | unsigned int out_buf_len) | |
4256 | { | |
4257 | int free_len; | |
4258 | ||
4259 | if (out_buf_len > work->conn->vals->max_trans_size) | |
4260 | return -EINVAL; | |
4261 | ||
8f054118 | 4262 | free_len = smb2_resp_buf_len(work, hdr2_len); |
34061d6b HL |
4263 | if (free_len < 0) |
4264 | return -EINVAL; | |
4265 | ||
4266 | return min_t(int, out_buf_len, free_len); | |
4267 | } | |
4268 | ||
e2f34481 NJ |
4269 | int smb2_query_dir(struct ksmbd_work *work) |
4270 | { | |
4271 | struct ksmbd_conn *conn = work->conn; | |
4272 | struct smb2_query_directory_req *req; | |
cb451720 | 4273 | struct smb2_query_directory_rsp *rsp; |
e2f34481 NJ |
4274 | struct ksmbd_share_config *share = work->tcon->share_conf; |
4275 | struct ksmbd_file *dir_fp = NULL; | |
4276 | struct ksmbd_dir_info d_info; | |
4277 | int rc = 0; | |
4278 | char *srch_ptr = NULL; | |
4279 | unsigned char srch_flag; | |
4280 | int buffer_sz; | |
4281 | struct smb2_query_dir_private query_dir_private = {NULL, }; | |
4282 | ||
e2f34481 NJ |
4283 | WORK_BUFFERS(work, req, rsp); |
4284 | ||
4285 | if (ksmbd_override_fsids(work)) { | |
4286 | rsp->hdr.Status = STATUS_NO_MEMORY; | |
4287 | smb2_set_err_rsp(work); | |
4288 | return -ENOMEM; | |
4289 | } | |
4290 | ||
4291 | rc = verify_info_level(req->FileInformationClass); | |
4292 | if (rc) { | |
4293 | rc = -EFAULT; | |
4294 | goto err_out2; | |
4295 | } | |
4296 | ||
2d004c6c | 4297 | dir_fp = ksmbd_lookup_fd_slow(work, req->VolatileFileId, req->PersistentFileId); |
e2f34481 NJ |
4298 | if (!dir_fp) { |
4299 | rc = -EBADF; | |
4300 | goto err_out2; | |
4301 | } | |
4302 | ||
4303 | if (!(dir_fp->daccess & FILE_LIST_DIRECTORY_LE) || | |
4609e1f1 | 4304 | inode_permission(file_mnt_idmap(dir_fp->filp), |
af34983e | 4305 | file_inode(dir_fp->filp), |
070fb21e | 4306 | MAY_READ | MAY_EXEC)) { |
369c1634 | 4307 | pr_err("no right to enumerate directory (%pD)\n", dir_fp->filp); |
e2f34481 NJ |
4308 | rc = -EACCES; |
4309 | goto err_out2; | |
4310 | } | |
4311 | ||
4312 | if (!S_ISDIR(file_inode(dir_fp->filp)->i_mode)) { | |
bde1694a | 4313 | pr_err("can't do query dir for a file\n"); |
e2f34481 NJ |
4314 | rc = -EINVAL; |
4315 | goto err_out2; | |
4316 | } | |
4317 | ||
4318 | srch_flag = req->Flags; | |
c6cd2e8d | 4319 | srch_ptr = smb_strndup_from_utf16((char *)req + le16_to_cpu(req->FileNameOffset), |
070fb21e NJ |
4320 | le16_to_cpu(req->FileNameLength), 1, |
4321 | conn->local_nls); | |
e2f34481 NJ |
4322 | if (IS_ERR(srch_ptr)) { |
4323 | ksmbd_debug(SMB, "Search Pattern not found\n"); | |
4324 | rc = -EINVAL; | |
4325 | goto err_out2; | |
64b39f4a | 4326 | } else { |
e2f34481 | 4327 | ksmbd_debug(SMB, "Search pattern is %s\n", srch_ptr); |
64b39f4a | 4328 | } |
e2f34481 | 4329 | |
e2f34481 NJ |
4330 | if (srch_flag & SMB2_REOPEN || srch_flag & SMB2_RESTART_SCANS) { |
4331 | ksmbd_debug(SMB, "Restart directory scan\n"); | |
4332 | generic_file_llseek(dir_fp->filp, 0, SEEK_SET); | |
e2f34481 NJ |
4333 | } |
4334 | ||
4335 | memset(&d_info, 0, sizeof(struct ksmbd_dir_info)); | |
4336 | d_info.wptr = (char *)rsp->Buffer; | |
4337 | d_info.rptr = (char *)rsp->Buffer; | |
34061d6b HL |
4338 | d_info.out_buf_len = |
4339 | smb2_calc_max_out_buf_len(work, 8, | |
4340 | le32_to_cpu(req->OutputBufferLength)); | |
4341 | if (d_info.out_buf_len < 0) { | |
4342 | rc = -EINVAL; | |
4343 | goto err_out; | |
4344 | } | |
e2f34481 NJ |
4345 | d_info.flags = srch_flag; |
4346 | ||
4347 | /* | |
4348 | * reserve dot and dotdot entries in head of buffer | |
4349 | * in first response | |
4350 | */ | |
4351 | rc = ksmbd_populate_dot_dotdot_entries(work, req->FileInformationClass, | |
070fb21e NJ |
4352 | dir_fp, &d_info, srch_ptr, |
4353 | smb2_populate_readdir_entry); | |
e2f34481 NJ |
4354 | if (rc == -ENOSPC) |
4355 | rc = 0; | |
4356 | else if (rc) | |
4357 | goto err_out; | |
4358 | ||
4359 | if (test_share_config_flag(share, KSMBD_SHARE_FLAG_HIDE_DOT_FILES)) | |
4360 | d_info.hide_dot_file = true; | |
4361 | ||
4362 | buffer_sz = d_info.out_buf_len; | |
4363 | d_info.rptr = d_info.wptr; | |
4364 | query_dir_private.work = work; | |
4365 | query_dir_private.search_pattern = srch_ptr; | |
4366 | query_dir_private.dir_fp = dir_fp; | |
4367 | query_dir_private.d_info = &d_info; | |
4368 | query_dir_private.info_level = req->FileInformationClass; | |
4369 | dir_fp->readdir_data.private = &query_dir_private; | |
4370 | set_ctx_actor(&dir_fp->readdir_data.ctx, __query_dir); | |
4371 | ||
e8c06191 | 4372 | rc = iterate_dir(dir_fp->filp, &dir_fp->readdir_data.ctx); |
65ca7a3f NJ |
4373 | /* |
4374 | * req->OutputBufferLength is too small to contain even one entry. | |
4375 | * In this case, it immediately returns OutputBufferLength 0 to client. | |
4376 | */ | |
4377 | if (!d_info.out_buf_len && !d_info.num_entry) | |
4378 | goto no_buf_len; | |
88541cb4 | 4379 | if (rc > 0 || rc == -ENOSPC) |
e2f34481 | 4380 | rc = 0; |
88541cb4 | 4381 | else if (rc) |
e2f34481 NJ |
4382 | goto err_out; |
4383 | ||
4384 | d_info.wptr = d_info.rptr; | |
4385 | d_info.out_buf_len = buffer_sz; | |
4386 | rc = process_query_dir_entries(&query_dir_private); | |
4387 | if (rc) | |
4388 | goto err_out; | |
4389 | ||
4390 | if (!d_info.data_count && d_info.out_buf_len >= 0) { | |
64b39f4a | 4391 | if (srch_flag & SMB2_RETURN_SINGLE_ENTRY && !is_asterisk(srch_ptr)) { |
e2f34481 | 4392 | rsp->hdr.Status = STATUS_NO_SUCH_FILE; |
64b39f4a | 4393 | } else { |
e2f34481 NJ |
4394 | dir_fp->dot_dotdot[0] = dir_fp->dot_dotdot[1] = 0; |
4395 | rsp->hdr.Status = STATUS_NO_MORE_FILES; | |
4396 | } | |
4397 | rsp->StructureSize = cpu_to_le16(9); | |
4398 | rsp->OutputBufferOffset = cpu_to_le16(0); | |
4399 | rsp->OutputBufferLength = cpu_to_le32(0); | |
4400 | rsp->Buffer[0] = 0; | |
e2b76ab8 NJ |
4401 | rc = ksmbd_iov_pin_rsp(work, (void *)rsp, |
4402 | sizeof(struct smb2_query_directory_rsp)); | |
4403 | if (rc) | |
4404 | goto err_out; | |
e2f34481 | 4405 | } else { |
65ca7a3f | 4406 | no_buf_len: |
e2f34481 NJ |
4407 | ((struct file_directory_info *) |
4408 | ((char *)rsp->Buffer + d_info.last_entry_offset)) | |
4409 | ->NextEntryOffset = 0; | |
65ca7a3f NJ |
4410 | if (d_info.data_count >= d_info.last_entry_off_align) |
4411 | d_info.data_count -= d_info.last_entry_off_align; | |
e2f34481 NJ |
4412 | |
4413 | rsp->StructureSize = cpu_to_le16(9); | |
4414 | rsp->OutputBufferOffset = cpu_to_le16(72); | |
4415 | rsp->OutputBufferLength = cpu_to_le32(d_info.data_count); | |
e2b76ab8 NJ |
4416 | rc = ksmbd_iov_pin_rsp(work, (void *)rsp, |
4417 | offsetof(struct smb2_query_directory_rsp, Buffer) + | |
4418 | d_info.data_count); | |
4419 | if (rc) | |
4420 | goto err_out; | |
e2f34481 NJ |
4421 | } |
4422 | ||
4423 | kfree(srch_ptr); | |
4424 | ksmbd_fd_put(work, dir_fp); | |
4425 | ksmbd_revert_fsids(work); | |
4426 | return 0; | |
4427 | ||
4428 | err_out: | |
bde1694a | 4429 | pr_err("error while processing smb2 query dir rc = %d\n", rc); |
e2f34481 NJ |
4430 | kfree(srch_ptr); |
4431 | ||
4432 | err_out2: | |
4433 | if (rc == -EINVAL) | |
4434 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; | |
4435 | else if (rc == -EACCES) | |
4436 | rsp->hdr.Status = STATUS_ACCESS_DENIED; | |
4437 | else if (rc == -ENOENT) | |
4438 | rsp->hdr.Status = STATUS_NO_SUCH_FILE; | |
4439 | else if (rc == -EBADF) | |
4440 | rsp->hdr.Status = STATUS_FILE_CLOSED; | |
4441 | else if (rc == -ENOMEM) | |
4442 | rsp->hdr.Status = STATUS_NO_MEMORY; | |
4443 | else if (rc == -EFAULT) | |
4444 | rsp->hdr.Status = STATUS_INVALID_INFO_CLASS; | |
88541cb4 NJ |
4445 | else if (rc == -EIO) |
4446 | rsp->hdr.Status = STATUS_FILE_CORRUPT_ERROR; | |
e2f34481 NJ |
4447 | if (!rsp->hdr.Status) |
4448 | rsp->hdr.Status = STATUS_UNEXPECTED_IO_ERROR; | |
4449 | ||
4450 | smb2_set_err_rsp(work); | |
4451 | ksmbd_fd_put(work, dir_fp); | |
4452 | ksmbd_revert_fsids(work); | |
4453 | return 0; | |
4454 | } | |
4455 | ||
4456 | /** | |
4457 | * buffer_check_err() - helper function to check buffer errors | |
4458 | * @reqOutputBufferLength: max buffer length expected in command response | |
4459 | * @rsp: query info response buffer contains output buffer length | |
e230d013 | 4460 | * @rsp_org: base response buffer pointer in case of chained response |
e2f34481 NJ |
4461 | * |
4462 | * Return: 0 on success, otherwise error | |
4463 | */ | |
4464 | static int buffer_check_err(int reqOutputBufferLength, | |
cb451720 | 4465 | struct smb2_query_info_rsp *rsp, |
e2b76ab8 | 4466 | void *rsp_org) |
e2f34481 NJ |
4467 | { |
4468 | if (reqOutputBufferLength < le32_to_cpu(rsp->OutputBufferLength)) { | |
e2b76ab8 NJ |
4469 | pr_err("Invalid Buffer Size Requested\n"); |
4470 | rsp->hdr.Status = STATUS_INFO_LENGTH_MISMATCH; | |
4471 | *(__be32 *)rsp_org = cpu_to_be32(sizeof(struct smb2_hdr)); | |
4472 | return -EINVAL; | |
e2f34481 NJ |
4473 | } |
4474 | return 0; | |
4475 | } | |
4476 | ||
cb451720 NJ |
4477 | static void get_standard_info_pipe(struct smb2_query_info_rsp *rsp, |
4478 | void *rsp_org) | |
e2f34481 NJ |
4479 | { |
4480 | struct smb2_file_standard_info *sinfo; | |
4481 | ||
4482 | sinfo = (struct smb2_file_standard_info *)rsp->Buffer; | |
4483 | ||
4484 | sinfo->AllocationSize = cpu_to_le64(4096); | |
4485 | sinfo->EndOfFile = cpu_to_le64(0); | |
4486 | sinfo->NumberOfLinks = cpu_to_le32(1); | |
4487 | sinfo->DeletePending = 1; | |
4488 | sinfo->Directory = 0; | |
4489 | rsp->OutputBufferLength = | |
4490 | cpu_to_le32(sizeof(struct smb2_file_standard_info)); | |
e2f34481 NJ |
4491 | } |
4492 | ||
cb451720 NJ |
4493 | static void get_internal_info_pipe(struct smb2_query_info_rsp *rsp, u64 num, |
4494 | void *rsp_org) | |
e2f34481 NJ |
4495 | { |
4496 | struct smb2_file_internal_info *file_info; | |
4497 | ||
4498 | file_info = (struct smb2_file_internal_info *)rsp->Buffer; | |
4499 | ||
4500 | /* any unique number */ | |
4501 | file_info->IndexNumber = cpu_to_le64(num | (1ULL << 63)); | |
4502 | rsp->OutputBufferLength = | |
4503 | cpu_to_le32(sizeof(struct smb2_file_internal_info)); | |
e2f34481 NJ |
4504 | } |
4505 | ||
e2f34481 | 4506 | static int smb2_get_info_file_pipe(struct ksmbd_session *sess, |
070fb21e | 4507 | struct smb2_query_info_req *req, |
cb451720 NJ |
4508 | struct smb2_query_info_rsp *rsp, |
4509 | void *rsp_org) | |
e2f34481 | 4510 | { |
64b39f4a | 4511 | u64 id; |
e2f34481 NJ |
4512 | int rc; |
4513 | ||
4514 | /* | |
4515 | * Windows can sometime send query file info request on | |
4516 | * pipe without opening it, checking error condition here | |
4517 | */ | |
2d004c6c | 4518 | id = req->VolatileFileId; |
e2f34481 NJ |
4519 | if (!ksmbd_session_rpc_method(sess, id)) |
4520 | return -ENOENT; | |
4521 | ||
4522 | ksmbd_debug(SMB, "FileInfoClass %u, FileId 0x%llx\n", | |
2d004c6c | 4523 | req->FileInfoClass, req->VolatileFileId); |
e2f34481 NJ |
4524 | |
4525 | switch (req->FileInfoClass) { | |
4526 | case FILE_STANDARD_INFORMATION: | |
cb451720 | 4527 | get_standard_info_pipe(rsp, rsp_org); |
e2f34481 | 4528 | rc = buffer_check_err(le32_to_cpu(req->OutputBufferLength), |
e2b76ab8 | 4529 | rsp, rsp_org); |
e2f34481 NJ |
4530 | break; |
4531 | case FILE_INTERNAL_INFORMATION: | |
cb451720 | 4532 | get_internal_info_pipe(rsp, id, rsp_org); |
e2f34481 | 4533 | rc = buffer_check_err(le32_to_cpu(req->OutputBufferLength), |
e2b76ab8 | 4534 | rsp, rsp_org); |
e2f34481 NJ |
4535 | break; |
4536 | default: | |
4537 | ksmbd_debug(SMB, "smb2_info_file_pipe for %u not supported\n", | |
070fb21e | 4538 | req->FileInfoClass); |
e2f34481 NJ |
4539 | rc = -EOPNOTSUPP; |
4540 | } | |
4541 | return rc; | |
4542 | } | |
4543 | ||
4544 | /** | |
4545 | * smb2_get_ea() - handler for smb2 get extended attribute command | |
4546 | * @work: smb work containing query info command buffer | |
95fa1ce9 HL |
4547 | * @fp: ksmbd_file pointer |
4548 | * @req: get extended attribute request | |
4549 | * @rsp: response buffer pointer | |
4550 | * @rsp_org: base response buffer pointer in case of chained response | |
e2f34481 NJ |
4551 | * |
4552 | * Return: 0 on success, otherwise error | |
4553 | */ | |
64b39f4a | 4554 | static int smb2_get_ea(struct ksmbd_work *work, struct ksmbd_file *fp, |
070fb21e NJ |
4555 | struct smb2_query_info_req *req, |
4556 | struct smb2_query_info_rsp *rsp, void *rsp_org) | |
e2f34481 NJ |
4557 | { |
4558 | struct smb2_ea_info *eainfo, *prev_eainfo; | |
4559 | char *name, *ptr, *xattr_list = NULL, *buf; | |
4560 | int rc, name_len, value_len, xattr_list_len, idx; | |
4561 | ssize_t buf_free_len, alignment_bytes, next_offset, rsp_data_cnt = 0; | |
4562 | struct smb2_ea_info_req *ea_req = NULL; | |
c22180a5 | 4563 | const struct path *path; |
4609e1f1 | 4564 | struct mnt_idmap *idmap = file_mnt_idmap(fp->filp); |
e2f34481 NJ |
4565 | |
4566 | if (!(fp->daccess & FILE_READ_EA_LE)) { | |
bde1694a NJ |
4567 | pr_err("Not permitted to read ext attr : 0x%x\n", |
4568 | fp->daccess); | |
e2f34481 NJ |
4569 | return -EACCES; |
4570 | } | |
4571 | ||
4572 | path = &fp->filp->f_path; | |
4573 | /* single EA entry is requested with given user.* name */ | |
64b39f4a | 4574 | if (req->InputBufferLength) { |
6d56262c NJ |
4575 | if (le32_to_cpu(req->InputBufferLength) < |
4576 | sizeof(struct smb2_ea_info_req)) | |
4577 | return -EINVAL; | |
4578 | ||
c6cd2e8d NJ |
4579 | ea_req = (struct smb2_ea_info_req *)((char *)req + |
4580 | le16_to_cpu(req->InputBufferOffset)); | |
64b39f4a | 4581 | } else { |
e2f34481 NJ |
4582 | /* need to send all EAs, if no specific EA is requested*/ |
4583 | if (le32_to_cpu(req->Flags) & SL_RETURN_SINGLE_ENTRY) | |
4584 | ksmbd_debug(SMB, | |
070fb21e NJ |
4585 | "All EAs are requested but need to send single EA entry in rsp flags 0x%x\n", |
4586 | le32_to_cpu(req->Flags)); | |
e2f34481 NJ |
4587 | } |
4588 | ||
34061d6b HL |
4589 | buf_free_len = |
4590 | smb2_calc_max_out_buf_len(work, 8, | |
4591 | le32_to_cpu(req->OutputBufferLength)); | |
4592 | if (buf_free_len < 0) | |
4593 | return -EINVAL; | |
e2f34481 NJ |
4594 | |
4595 | rc = ksmbd_vfs_listxattr(path->dentry, &xattr_list); | |
4596 | if (rc < 0) { | |
4597 | rsp->hdr.Status = STATUS_INVALID_HANDLE; | |
4598 | goto out; | |
4599 | } else if (!rc) { /* there is no EA in the file */ | |
4600 | ksmbd_debug(SMB, "no ea data in the file\n"); | |
4601 | goto done; | |
4602 | } | |
4603 | xattr_list_len = rc; | |
4604 | ||
4605 | ptr = (char *)rsp->Buffer; | |
4606 | eainfo = (struct smb2_ea_info *)ptr; | |
4607 | prev_eainfo = eainfo; | |
4608 | idx = 0; | |
4609 | ||
4610 | while (idx < xattr_list_len) { | |
4611 | name = xattr_list + idx; | |
4612 | name_len = strlen(name); | |
4613 | ||
4614 | ksmbd_debug(SMB, "%s, len %d\n", name, name_len); | |
4615 | idx += name_len + 1; | |
4616 | ||
4617 | /* | |
4618 | * CIFS does not support EA other than user.* namespace, | |
4619 | * still keep the framework generic, to list other attrs | |
4620 | * in future. | |
4621 | */ | |
4622 | if (strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)) | |
4623 | continue; | |
4624 | ||
4625 | if (!strncmp(&name[XATTR_USER_PREFIX_LEN], STREAM_PREFIX, | |
64b39f4a | 4626 | STREAM_PREFIX_LEN)) |
e2f34481 NJ |
4627 | continue; |
4628 | ||
4629 | if (req->InputBufferLength && | |
64b39f4a NJ |
4630 | strncmp(&name[XATTR_USER_PREFIX_LEN], ea_req->name, |
4631 | ea_req->EaNameLength)) | |
e2f34481 NJ |
4632 | continue; |
4633 | ||
4634 | if (!strncmp(&name[XATTR_USER_PREFIX_LEN], | |
64b39f4a | 4635 | DOS_ATTRIBUTE_PREFIX, DOS_ATTRIBUTE_PREFIX_LEN)) |
e2f34481 NJ |
4636 | continue; |
4637 | ||
4638 | if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)) | |
4639 | name_len -= XATTR_USER_PREFIX_LEN; | |
4640 | ||
0ba5439d | 4641 | ptr = eainfo->name + name_len + 1; |
e2f34481 NJ |
4642 | buf_free_len -= (offsetof(struct smb2_ea_info, name) + |
4643 | name_len + 1); | |
4644 | /* bailout if xattr can't fit in buf_free_len */ | |
4609e1f1 | 4645 | value_len = ksmbd_vfs_getxattr(idmap, path->dentry, |
465d7204 | 4646 | name, &buf); |
e2f34481 NJ |
4647 | if (value_len <= 0) { |
4648 | rc = -ENOENT; | |
4649 | rsp->hdr.Status = STATUS_INVALID_HANDLE; | |
4650 | goto out; | |
4651 | } | |
4652 | ||
4653 | buf_free_len -= value_len; | |
4654 | if (buf_free_len < 0) { | |
79f6b11a | 4655 | kfree(buf); |
e2f34481 NJ |
4656 | break; |
4657 | } | |
4658 | ||
4659 | memcpy(ptr, buf, value_len); | |
79f6b11a | 4660 | kfree(buf); |
e2f34481 NJ |
4661 | |
4662 | ptr += value_len; | |
4663 | eainfo->Flags = 0; | |
4664 | eainfo->EaNameLength = name_len; | |
4665 | ||
64b39f4a | 4666 | if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)) |
e2f34481 | 4667 | memcpy(eainfo->name, &name[XATTR_USER_PREFIX_LEN], |
070fb21e | 4668 | name_len); |
e2f34481 NJ |
4669 | else |
4670 | memcpy(eainfo->name, name, name_len); | |
4671 | ||
4672 | eainfo->name[name_len] = '\0'; | |
4673 | eainfo->EaValueLength = cpu_to_le16(value_len); | |
4674 | next_offset = offsetof(struct smb2_ea_info, name) + | |
4675 | name_len + 1 + value_len; | |
4676 | ||
4677 | /* align next xattr entry at 4 byte bundary */ | |
4678 | alignment_bytes = ((next_offset + 3) & ~3) - next_offset; | |
4679 | if (alignment_bytes) { | |
4680 | memset(ptr, '\0', alignment_bytes); | |
4681 | ptr += alignment_bytes; | |
4682 | next_offset += alignment_bytes; | |
4683 | buf_free_len -= alignment_bytes; | |
4684 | } | |
4685 | eainfo->NextEntryOffset = cpu_to_le32(next_offset); | |
4686 | prev_eainfo = eainfo; | |
4687 | eainfo = (struct smb2_ea_info *)ptr; | |
4688 | rsp_data_cnt += next_offset; | |
4689 | ||
4690 | if (req->InputBufferLength) { | |
4691 | ksmbd_debug(SMB, "single entry requested\n"); | |
4692 | break; | |
4693 | } | |
4694 | } | |
4695 | ||
4696 | /* no more ea entries */ | |
4697 | prev_eainfo->NextEntryOffset = 0; | |
4698 | done: | |
4699 | rc = 0; | |
4700 | if (rsp_data_cnt == 0) | |
4701 | rsp->hdr.Status = STATUS_NO_EAS_ON_FILE; | |
4702 | rsp->OutputBufferLength = cpu_to_le32(rsp_data_cnt); | |
e2f34481 | 4703 | out: |
79f6b11a | 4704 | kvfree(xattr_list); |
e2f34481 NJ |
4705 | return rc; |
4706 | } | |
4707 | ||
4708 | static void get_file_access_info(struct smb2_query_info_rsp *rsp, | |
070fb21e | 4709 | struct ksmbd_file *fp, void *rsp_org) |
e2f34481 NJ |
4710 | { |
4711 | struct smb2_file_access_info *file_info; | |
4712 | ||
4713 | file_info = (struct smb2_file_access_info *)rsp->Buffer; | |
4714 | file_info->AccessFlags = fp->daccess; | |
4715 | rsp->OutputBufferLength = | |
4716 | cpu_to_le32(sizeof(struct smb2_file_access_info)); | |
e2f34481 NJ |
4717 | } |
4718 | ||
4719 | static int get_file_basic_info(struct smb2_query_info_rsp *rsp, | |
070fb21e | 4720 | struct ksmbd_file *fp, void *rsp_org) |
e2f34481 | 4721 | { |
88d30052 | 4722 | struct smb2_file_basic_info *basic_info; |
e2f34481 NJ |
4723 | struct kstat stat; |
4724 | u64 time; | |
5614c8c4 | 4725 | int ret; |
e2f34481 NJ |
4726 | |
4727 | if (!(fp->daccess & FILE_READ_ATTRIBUTES_LE)) { | |
bde1694a NJ |
4728 | pr_err("no right to read the attributes : 0x%x\n", |
4729 | fp->daccess); | |
e2f34481 NJ |
4730 | return -EACCES; |
4731 | } | |
4732 | ||
5614c8c4 MM |
4733 | ret = vfs_getattr(&fp->filp->f_path, &stat, STATX_BASIC_STATS, |
4734 | AT_STATX_SYNC_AS_STAT); | |
4735 | if (ret) | |
4736 | return ret; | |
4737 | ||
88d30052 | 4738 | basic_info = (struct smb2_file_basic_info *)rsp->Buffer; |
e2f34481 NJ |
4739 | basic_info->CreationTime = cpu_to_le64(fp->create_time); |
4740 | time = ksmbd_UnixTimeToNT(stat.atime); | |
4741 | basic_info->LastAccessTime = cpu_to_le64(time); | |
4742 | time = ksmbd_UnixTimeToNT(stat.mtime); | |
4743 | basic_info->LastWriteTime = cpu_to_le64(time); | |
4744 | time = ksmbd_UnixTimeToNT(stat.ctime); | |
4745 | basic_info->ChangeTime = cpu_to_le64(time); | |
4746 | basic_info->Attributes = fp->f_ci->m_fattr; | |
4747 | basic_info->Pad1 = 0; | |
4748 | rsp->OutputBufferLength = | |
88d30052 | 4749 | cpu_to_le32(sizeof(struct smb2_file_basic_info)); |
e2f34481 NJ |
4750 | return 0; |
4751 | } | |
4752 | ||
5614c8c4 MM |
4753 | static int get_file_standard_info(struct smb2_query_info_rsp *rsp, |
4754 | struct ksmbd_file *fp, void *rsp_org) | |
e2f34481 NJ |
4755 | { |
4756 | struct smb2_file_standard_info *sinfo; | |
4757 | unsigned int delete_pending; | |
e2f34481 | 4758 | struct kstat stat; |
5614c8c4 | 4759 | int ret; |
e2f34481 | 4760 | |
5614c8c4 MM |
4761 | ret = vfs_getattr(&fp->filp->f_path, &stat, STATX_BASIC_STATS, |
4762 | AT_STATX_SYNC_AS_STAT); | |
4763 | if (ret) | |
4764 | return ret; | |
e2f34481 NJ |
4765 | |
4766 | sinfo = (struct smb2_file_standard_info *)rsp->Buffer; | |
4767 | delete_pending = ksmbd_inode_pending_delete(fp); | |
4768 | ||
5614c8c4 | 4769 | sinfo->AllocationSize = cpu_to_le64(stat.blocks << 9); |
e2f34481 NJ |
4770 | sinfo->EndOfFile = S_ISDIR(stat.mode) ? 0 : cpu_to_le64(stat.size); |
4771 | sinfo->NumberOfLinks = cpu_to_le32(get_nlink(&stat) - delete_pending); | |
4772 | sinfo->DeletePending = delete_pending; | |
4773 | sinfo->Directory = S_ISDIR(stat.mode) ? 1 : 0; | |
4774 | rsp->OutputBufferLength = | |
4775 | cpu_to_le32(sizeof(struct smb2_file_standard_info)); | |
5614c8c4 MM |
4776 | |
4777 | return 0; | |
e2f34481 NJ |
4778 | } |
4779 | ||
4780 | static void get_file_alignment_info(struct smb2_query_info_rsp *rsp, | |
070fb21e | 4781 | void *rsp_org) |
e2f34481 NJ |
4782 | { |
4783 | struct smb2_file_alignment_info *file_info; | |
4784 | ||
4785 | file_info = (struct smb2_file_alignment_info *)rsp->Buffer; | |
4786 | file_info->AlignmentRequirement = 0; | |
4787 | rsp->OutputBufferLength = | |
4788 | cpu_to_le32(sizeof(struct smb2_file_alignment_info)); | |
e2f34481 NJ |
4789 | } |
4790 | ||
4791 | static int get_file_all_info(struct ksmbd_work *work, | |
070fb21e NJ |
4792 | struct smb2_query_info_rsp *rsp, |
4793 | struct ksmbd_file *fp, | |
4794 | void *rsp_org) | |
e2f34481 NJ |
4795 | { |
4796 | struct ksmbd_conn *conn = work->conn; | |
4797 | struct smb2_file_all_info *file_info; | |
4798 | unsigned int delete_pending; | |
e2f34481 NJ |
4799 | struct kstat stat; |
4800 | int conv_len; | |
4801 | char *filename; | |
4802 | u64 time; | |
5614c8c4 | 4803 | int ret; |
e2f34481 NJ |
4804 | |
4805 | if (!(fp->daccess & FILE_READ_ATTRIBUTES_LE)) { | |
4806 | ksmbd_debug(SMB, "no right to read the attributes : 0x%x\n", | |
070fb21e | 4807 | fp->daccess); |
e2f34481 NJ |
4808 | return -EACCES; |
4809 | } | |
4810 | ||
50f500b7 NJ |
4811 | filename = convert_to_nt_pathname(work->tcon->share_conf, &fp->filp->f_path); |
4812 | if (IS_ERR(filename)) | |
4813 | return PTR_ERR(filename); | |
e2f34481 | 4814 | |
5614c8c4 MM |
4815 | ret = vfs_getattr(&fp->filp->f_path, &stat, STATX_BASIC_STATS, |
4816 | AT_STATX_SYNC_AS_STAT); | |
4817 | if (ret) | |
4818 | return ret; | |
e2f34481 NJ |
4819 | |
4820 | ksmbd_debug(SMB, "filename = %s\n", filename); | |
4821 | delete_pending = ksmbd_inode_pending_delete(fp); | |
4822 | file_info = (struct smb2_file_all_info *)rsp->Buffer; | |
4823 | ||
4824 | file_info->CreationTime = cpu_to_le64(fp->create_time); | |
4825 | time = ksmbd_UnixTimeToNT(stat.atime); | |
4826 | file_info->LastAccessTime = cpu_to_le64(time); | |
4827 | time = ksmbd_UnixTimeToNT(stat.mtime); | |
4828 | file_info->LastWriteTime = cpu_to_le64(time); | |
4829 | time = ksmbd_UnixTimeToNT(stat.ctime); | |
4830 | file_info->ChangeTime = cpu_to_le64(time); | |
4831 | file_info->Attributes = fp->f_ci->m_fattr; | |
4832 | file_info->Pad1 = 0; | |
4833 | file_info->AllocationSize = | |
5614c8c4 | 4834 | cpu_to_le64(stat.blocks << 9); |
e2f34481 NJ |
4835 | file_info->EndOfFile = S_ISDIR(stat.mode) ? 0 : cpu_to_le64(stat.size); |
4836 | file_info->NumberOfLinks = | |
4837 | cpu_to_le32(get_nlink(&stat) - delete_pending); | |
4838 | file_info->DeletePending = delete_pending; | |
4839 | file_info->Directory = S_ISDIR(stat.mode) ? 1 : 0; | |
4840 | file_info->Pad2 = 0; | |
4841 | file_info->IndexNumber = cpu_to_le64(stat.ino); | |
4842 | file_info->EASize = 0; | |
4843 | file_info->AccessFlags = fp->daccess; | |
4844 | file_info->CurrentByteOffset = cpu_to_le64(fp->filp->f_pos); | |
4845 | file_info->Mode = fp->coption; | |
4846 | file_info->AlignmentRequirement = 0; | |
070fb21e NJ |
4847 | conv_len = smbConvertToUTF16((__le16 *)file_info->FileName, filename, |
4848 | PATH_MAX, conn->local_nls, 0); | |
e2f34481 NJ |
4849 | conv_len *= 2; |
4850 | file_info->FileNameLength = cpu_to_le32(conv_len); | |
4851 | rsp->OutputBufferLength = | |
4852 | cpu_to_le32(sizeof(struct smb2_file_all_info) + conv_len - 1); | |
4853 | kfree(filename); | |
e2f34481 NJ |
4854 | return 0; |
4855 | } | |
4856 | ||
4857 | static void get_file_alternate_info(struct ksmbd_work *work, | |
070fb21e NJ |
4858 | struct smb2_query_info_rsp *rsp, |
4859 | struct ksmbd_file *fp, | |
4860 | void *rsp_org) | |
e2f34481 NJ |
4861 | { |
4862 | struct ksmbd_conn *conn = work->conn; | |
4863 | struct smb2_file_alt_name_info *file_info; | |
493fa2fb | 4864 | struct dentry *dentry = fp->filp->f_path.dentry; |
e2f34481 | 4865 | int conv_len; |
e2f34481 | 4866 | |
493fa2fb | 4867 | spin_lock(&dentry->d_lock); |
e2f34481 NJ |
4868 | file_info = (struct smb2_file_alt_name_info *)rsp->Buffer; |
4869 | conv_len = ksmbd_extract_shortname(conn, | |
493fa2fb | 4870 | dentry->d_name.name, |
e2f34481 | 4871 | file_info->FileName); |
493fa2fb | 4872 | spin_unlock(&dentry->d_lock); |
e2f34481 NJ |
4873 | file_info->FileNameLength = cpu_to_le32(conv_len); |
4874 | rsp->OutputBufferLength = | |
4875 | cpu_to_le32(sizeof(struct smb2_file_alt_name_info) + conv_len); | |
e2f34481 NJ |
4876 | } |
4877 | ||
5614c8c4 MM |
4878 | static int get_file_stream_info(struct ksmbd_work *work, |
4879 | struct smb2_query_info_rsp *rsp, | |
4880 | struct ksmbd_file *fp, | |
4881 | void *rsp_org) | |
e2f34481 NJ |
4882 | { |
4883 | struct ksmbd_conn *conn = work->conn; | |
4884 | struct smb2_file_stream_info *file_info; | |
4885 | char *stream_name, *xattr_list = NULL, *stream_buf; | |
4886 | struct kstat stat; | |
c22180a5 | 4887 | const struct path *path = &fp->filp->f_path; |
e2f34481 NJ |
4888 | ssize_t xattr_list_len; |
4889 | int nbytes = 0, streamlen, stream_name_len, next, idx = 0; | |
34061d6b HL |
4890 | int buf_free_len; |
4891 | struct smb2_query_info_req *req = ksmbd_req_buf_next(work); | |
5614c8c4 MM |
4892 | int ret; |
4893 | ||
4894 | ret = vfs_getattr(&fp->filp->f_path, &stat, STATX_BASIC_STATS, | |
4895 | AT_STATX_SYNC_AS_STAT); | |
4896 | if (ret) | |
4897 | return ret; | |
e2f34481 | 4898 | |
e2f34481 NJ |
4899 | file_info = (struct smb2_file_stream_info *)rsp->Buffer; |
4900 | ||
1ec72153 NJ |
4901 | buf_free_len = |
4902 | smb2_calc_max_out_buf_len(work, 8, | |
4903 | le32_to_cpu(req->OutputBufferLength)); | |
4904 | if (buf_free_len < 0) | |
4905 | goto out; | |
4906 | ||
e2f34481 NJ |
4907 | xattr_list_len = ksmbd_vfs_listxattr(path->dentry, &xattr_list); |
4908 | if (xattr_list_len < 0) { | |
4909 | goto out; | |
4910 | } else if (!xattr_list_len) { | |
4911 | ksmbd_debug(SMB, "empty xattr in the file\n"); | |
4912 | goto out; | |
4913 | } | |
4914 | ||
4915 | while (idx < xattr_list_len) { | |
4916 | stream_name = xattr_list + idx; | |
4917 | streamlen = strlen(stream_name); | |
4918 | idx += streamlen + 1; | |
4919 | ||
4920 | ksmbd_debug(SMB, "%s, len %d\n", stream_name, streamlen); | |
4921 | ||
4922 | if (strncmp(&stream_name[XATTR_USER_PREFIX_LEN], | |
64b39f4a | 4923 | STREAM_PREFIX, STREAM_PREFIX_LEN)) |
e2f34481 NJ |
4924 | continue; |
4925 | ||
4926 | stream_name_len = streamlen - (XATTR_USER_PREFIX_LEN + | |
4927 | STREAM_PREFIX_LEN); | |
4928 | streamlen = stream_name_len; | |
4929 | ||
4930 | /* plus : size */ | |
4931 | streamlen += 1; | |
4932 | stream_buf = kmalloc(streamlen + 1, GFP_KERNEL); | |
4933 | if (!stream_buf) | |
4934 | break; | |
4935 | ||
4936 | streamlen = snprintf(stream_buf, streamlen + 1, | |
070fb21e | 4937 | ":%s", &stream_name[XATTR_NAME_STREAM_LEN]); |
e2f34481 | 4938 | |
34061d6b | 4939 | next = sizeof(struct smb2_file_stream_info) + streamlen * 2; |
178ca6f8 NJ |
4940 | if (next > buf_free_len) { |
4941 | kfree(stream_buf); | |
34061d6b | 4942 | break; |
178ca6f8 | 4943 | } |
34061d6b | 4944 | |
070fb21e | 4945 | file_info = (struct smb2_file_stream_info *)&rsp->Buffer[nbytes]; |
e2f34481 | 4946 | streamlen = smbConvertToUTF16((__le16 *)file_info->StreamName, |
070fb21e NJ |
4947 | stream_buf, streamlen, |
4948 | conn->local_nls, 0); | |
e2f34481 NJ |
4949 | streamlen *= 2; |
4950 | kfree(stream_buf); | |
4951 | file_info->StreamNameLength = cpu_to_le32(streamlen); | |
4952 | file_info->StreamSize = cpu_to_le64(stream_name_len); | |
4953 | file_info->StreamAllocationSize = cpu_to_le64(stream_name_len); | |
4954 | ||
e2f34481 | 4955 | nbytes += next; |
34061d6b | 4956 | buf_free_len -= next; |
e2f34481 NJ |
4957 | file_info->NextEntryOffset = cpu_to_le32(next); |
4958 | } | |
4959 | ||
1ec72153 | 4960 | out: |
34061d6b HL |
4961 | if (!S_ISDIR(stat.mode) && |
4962 | buf_free_len >= sizeof(struct smb2_file_stream_info) + 7 * 2) { | |
e2f34481 NJ |
4963 | file_info = (struct smb2_file_stream_info *) |
4964 | &rsp->Buffer[nbytes]; | |
4965 | streamlen = smbConvertToUTF16((__le16 *)file_info->StreamName, | |
070fb21e | 4966 | "::$DATA", 7, conn->local_nls, 0); |
e2f34481 NJ |
4967 | streamlen *= 2; |
4968 | file_info->StreamNameLength = cpu_to_le32(streamlen); | |
1ec72153 NJ |
4969 | file_info->StreamSize = cpu_to_le64(stat.size); |
4970 | file_info->StreamAllocationSize = cpu_to_le64(stat.blocks << 9); | |
e2f34481 NJ |
4971 | nbytes += sizeof(struct smb2_file_stream_info) + streamlen; |
4972 | } | |
4973 | ||
4974 | /* last entry offset should be 0 */ | |
4975 | file_info->NextEntryOffset = 0; | |
79f6b11a | 4976 | kvfree(xattr_list); |
e2f34481 NJ |
4977 | |
4978 | rsp->OutputBufferLength = cpu_to_le32(nbytes); | |
5614c8c4 MM |
4979 | |
4980 | return 0; | |
e2f34481 NJ |
4981 | } |
4982 | ||
5614c8c4 MM |
4983 | static int get_file_internal_info(struct smb2_query_info_rsp *rsp, |
4984 | struct ksmbd_file *fp, void *rsp_org) | |
e2f34481 NJ |
4985 | { |
4986 | struct smb2_file_internal_info *file_info; | |
4987 | struct kstat stat; | |
5614c8c4 MM |
4988 | int ret; |
4989 | ||
4990 | ret = vfs_getattr(&fp->filp->f_path, &stat, STATX_BASIC_STATS, | |
4991 | AT_STATX_SYNC_AS_STAT); | |
4992 | if (ret) | |
4993 | return ret; | |
e2f34481 | 4994 | |
e2f34481 NJ |
4995 | file_info = (struct smb2_file_internal_info *)rsp->Buffer; |
4996 | file_info->IndexNumber = cpu_to_le64(stat.ino); | |
4997 | rsp->OutputBufferLength = | |
4998 | cpu_to_le32(sizeof(struct smb2_file_internal_info)); | |
5614c8c4 MM |
4999 | |
5000 | return 0; | |
e2f34481 NJ |
5001 | } |
5002 | ||
5003 | static int get_file_network_open_info(struct smb2_query_info_rsp *rsp, | |
070fb21e | 5004 | struct ksmbd_file *fp, void *rsp_org) |
e2f34481 NJ |
5005 | { |
5006 | struct smb2_file_ntwrk_info *file_info; | |
e2f34481 NJ |
5007 | struct kstat stat; |
5008 | u64 time; | |
5614c8c4 | 5009 | int ret; |
e2f34481 NJ |
5010 | |
5011 | if (!(fp->daccess & FILE_READ_ATTRIBUTES_LE)) { | |
bde1694a NJ |
5012 | pr_err("no right to read the attributes : 0x%x\n", |
5013 | fp->daccess); | |
e2f34481 NJ |
5014 | return -EACCES; |
5015 | } | |
5016 | ||
5614c8c4 MM |
5017 | ret = vfs_getattr(&fp->filp->f_path, &stat, STATX_BASIC_STATS, |
5018 | AT_STATX_SYNC_AS_STAT); | |
5019 | if (ret) | |
5020 | return ret; | |
e2f34481 | 5021 | |
5614c8c4 | 5022 | file_info = (struct smb2_file_ntwrk_info *)rsp->Buffer; |
e2f34481 NJ |
5023 | |
5024 | file_info->CreationTime = cpu_to_le64(fp->create_time); | |
5025 | time = ksmbd_UnixTimeToNT(stat.atime); | |
5026 | file_info->LastAccessTime = cpu_to_le64(time); | |
5027 | time = ksmbd_UnixTimeToNT(stat.mtime); | |
5028 | file_info->LastWriteTime = cpu_to_le64(time); | |
5029 | time = ksmbd_UnixTimeToNT(stat.ctime); | |
5030 | file_info->ChangeTime = cpu_to_le64(time); | |
5031 | file_info->Attributes = fp->f_ci->m_fattr; | |
5614c8c4 | 5032 | file_info->AllocationSize = cpu_to_le64(stat.blocks << 9); |
e2f34481 NJ |
5033 | file_info->EndOfFile = S_ISDIR(stat.mode) ? 0 : cpu_to_le64(stat.size); |
5034 | file_info->Reserved = cpu_to_le32(0); | |
5035 | rsp->OutputBufferLength = | |
5036 | cpu_to_le32(sizeof(struct smb2_file_ntwrk_info)); | |
e2f34481 NJ |
5037 | return 0; |
5038 | } | |
5039 | ||
64b39f4a | 5040 | static void get_file_ea_info(struct smb2_query_info_rsp *rsp, void *rsp_org) |
e2f34481 NJ |
5041 | { |
5042 | struct smb2_file_ea_info *file_info; | |
5043 | ||
5044 | file_info = (struct smb2_file_ea_info *)rsp->Buffer; | |
5045 | file_info->EASize = 0; | |
5046 | rsp->OutputBufferLength = | |
5047 | cpu_to_le32(sizeof(struct smb2_file_ea_info)); | |
e2f34481 NJ |
5048 | } |
5049 | ||
5050 | static void get_file_position_info(struct smb2_query_info_rsp *rsp, | |
070fb21e | 5051 | struct ksmbd_file *fp, void *rsp_org) |
e2f34481 NJ |
5052 | { |
5053 | struct smb2_file_pos_info *file_info; | |
5054 | ||
5055 | file_info = (struct smb2_file_pos_info *)rsp->Buffer; | |
5056 | file_info->CurrentByteOffset = cpu_to_le64(fp->filp->f_pos); | |
5057 | rsp->OutputBufferLength = | |
5058 | cpu_to_le32(sizeof(struct smb2_file_pos_info)); | |
e2f34481 NJ |
5059 | } |
5060 | ||
5061 | static void get_file_mode_info(struct smb2_query_info_rsp *rsp, | |
070fb21e | 5062 | struct ksmbd_file *fp, void *rsp_org) |
e2f34481 NJ |
5063 | { |
5064 | struct smb2_file_mode_info *file_info; | |
5065 | ||
5066 | file_info = (struct smb2_file_mode_info *)rsp->Buffer; | |
5067 | file_info->Mode = fp->coption & FILE_MODE_INFO_MASK; | |
5068 | rsp->OutputBufferLength = | |
5069 | cpu_to_le32(sizeof(struct smb2_file_mode_info)); | |
e2f34481 NJ |
5070 | } |
5071 | ||
5614c8c4 MM |
5072 | static int get_file_compression_info(struct smb2_query_info_rsp *rsp, |
5073 | struct ksmbd_file *fp, void *rsp_org) | |
e2f34481 NJ |
5074 | { |
5075 | struct smb2_file_comp_info *file_info; | |
5076 | struct kstat stat; | |
5614c8c4 | 5077 | int ret; |
e2f34481 | 5078 | |
5614c8c4 MM |
5079 | ret = vfs_getattr(&fp->filp->f_path, &stat, STATX_BASIC_STATS, |
5080 | AT_STATX_SYNC_AS_STAT); | |
5081 | if (ret) | |
5082 | return ret; | |
e2f34481 NJ |
5083 | |
5084 | file_info = (struct smb2_file_comp_info *)rsp->Buffer; | |
5085 | file_info->CompressedFileSize = cpu_to_le64(stat.blocks << 9); | |
5086 | file_info->CompressionFormat = COMPRESSION_FORMAT_NONE; | |
5087 | file_info->CompressionUnitShift = 0; | |
5088 | file_info->ChunkShift = 0; | |
5089 | file_info->ClusterShift = 0; | |
5090 | memset(&file_info->Reserved[0], 0, 3); | |
5091 | ||
5092 | rsp->OutputBufferLength = | |
5093 | cpu_to_le32(sizeof(struct smb2_file_comp_info)); | |
5614c8c4 MM |
5094 | |
5095 | return 0; | |
e2f34481 NJ |
5096 | } |
5097 | ||
5098 | static int get_file_attribute_tag_info(struct smb2_query_info_rsp *rsp, | |
070fb21e | 5099 | struct ksmbd_file *fp, void *rsp_org) |
e2f34481 NJ |
5100 | { |
5101 | struct smb2_file_attr_tag_info *file_info; | |
5102 | ||
5103 | if (!(fp->daccess & FILE_READ_ATTRIBUTES_LE)) { | |
bde1694a NJ |
5104 | pr_err("no right to read the attributes : 0x%x\n", |
5105 | fp->daccess); | |
e2f34481 NJ |
5106 | return -EACCES; |
5107 | } | |
5108 | ||
5109 | file_info = (struct smb2_file_attr_tag_info *)rsp->Buffer; | |
5110 | file_info->FileAttributes = fp->f_ci->m_fattr; | |
5111 | file_info->ReparseTag = 0; | |
5112 | rsp->OutputBufferLength = | |
5113 | cpu_to_le32(sizeof(struct smb2_file_attr_tag_info)); | |
e2f34481 NJ |
5114 | return 0; |
5115 | } | |
5116 | ||
5614c8c4 | 5117 | static int find_file_posix_info(struct smb2_query_info_rsp *rsp, |
070fb21e | 5118 | struct ksmbd_file *fp, void *rsp_org) |
e2f34481 NJ |
5119 | { |
5120 | struct smb311_posix_qinfo *file_info; | |
ab0b263b | 5121 | struct inode *inode = file_inode(fp->filp); |
e67fe633 CB |
5122 | struct mnt_idmap *idmap = file_mnt_idmap(fp->filp); |
5123 | vfsuid_t vfsuid = i_uid_into_vfsuid(idmap, inode); | |
5124 | vfsgid_t vfsgid = i_gid_into_vfsgid(idmap, inode); | |
5614c8c4 | 5125 | struct kstat stat; |
e2f34481 | 5126 | u64 time; |
d5919f2a | 5127 | int out_buf_len = sizeof(struct smb311_posix_qinfo) + 32; |
5614c8c4 MM |
5128 | int ret; |
5129 | ||
5130 | ret = vfs_getattr(&fp->filp->f_path, &stat, STATX_BASIC_STATS, | |
5131 | AT_STATX_SYNC_AS_STAT); | |
5132 | if (ret) | |
5133 | return ret; | |
e2f34481 NJ |
5134 | |
5135 | file_info = (struct smb311_posix_qinfo *)rsp->Buffer; | |
5136 | file_info->CreationTime = cpu_to_le64(fp->create_time); | |
5614c8c4 | 5137 | time = ksmbd_UnixTimeToNT(stat.atime); |
e2f34481 | 5138 | file_info->LastAccessTime = cpu_to_le64(time); |
5614c8c4 | 5139 | time = ksmbd_UnixTimeToNT(stat.mtime); |
e2f34481 | 5140 | file_info->LastWriteTime = cpu_to_le64(time); |
5614c8c4 | 5141 | time = ksmbd_UnixTimeToNT(stat.ctime); |
e2f34481 NJ |
5142 | file_info->ChangeTime = cpu_to_le64(time); |
5143 | file_info->DosAttributes = fp->f_ci->m_fattr; | |
5614c8c4 MM |
5144 | file_info->Inode = cpu_to_le64(stat.ino); |
5145 | file_info->EndOfFile = cpu_to_le64(stat.size); | |
5146 | file_info->AllocationSize = cpu_to_le64(stat.blocks << 9); | |
5147 | file_info->HardLinks = cpu_to_le32(stat.nlink); | |
5148 | file_info->Mode = cpu_to_le32(stat.mode & 0777); | |
5149 | file_info->DeviceId = cpu_to_le32(stat.rdev); | |
d5919f2a NJ |
5150 | |
5151 | /* | |
5152 | * Sids(32) contain two sids(Domain sid(16), UNIX group sid(16)). | |
5153 | * UNIX sid(16) = revision(1) + num_subauth(1) + authority(6) + | |
5154 | * sub_auth(4 * 1(num_subauth)) + RID(4). | |
5155 | */ | |
5156 | id_to_sid(from_kuid_munged(&init_user_ns, vfsuid_into_kuid(vfsuid)), | |
5157 | SIDUNIX_USER, (struct smb_sid *)&file_info->Sids[0]); | |
5158 | id_to_sid(from_kgid_munged(&init_user_ns, vfsgid_into_kgid(vfsgid)), | |
5159 | SIDUNIX_GROUP, (struct smb_sid *)&file_info->Sids[16]); | |
5160 | ||
5161 | rsp->OutputBufferLength = cpu_to_le32(out_buf_len); | |
5614c8c4 MM |
5162 | |
5163 | return 0; | |
e2f34481 NJ |
5164 | } |
5165 | ||
e2f34481 | 5166 | static int smb2_get_info_file(struct ksmbd_work *work, |
070fb21e | 5167 | struct smb2_query_info_req *req, |
cb451720 | 5168 | struct smb2_query_info_rsp *rsp) |
e2f34481 NJ |
5169 | { |
5170 | struct ksmbd_file *fp; | |
5171 | int fileinfoclass = 0; | |
5172 | int rc = 0; | |
e2f34481 NJ |
5173 | unsigned int id = KSMBD_NO_FID, pid = KSMBD_NO_FID; |
5174 | ||
5175 | if (test_share_config_flag(work->tcon->share_conf, | |
64b39f4a | 5176 | KSMBD_SHARE_FLAG_PIPE)) { |
e2f34481 | 5177 | /* smb2 info file called for pipe */ |
cb451720 NJ |
5178 | return smb2_get_info_file_pipe(work->sess, req, rsp, |
5179 | work->response_buf); | |
e2f34481 NJ |
5180 | } |
5181 | ||
5182 | if (work->next_smb2_rcv_hdr_off) { | |
2d004c6c | 5183 | if (!has_file_id(req->VolatileFileId)) { |
3867369e | 5184 | ksmbd_debug(SMB, "Compound request set FID = %llu\n", |
070fb21e | 5185 | work->compound_fid); |
e2f34481 NJ |
5186 | id = work->compound_fid; |
5187 | pid = work->compound_pfid; | |
5188 | } | |
5189 | } | |
5190 | ||
3867369e | 5191 | if (!has_file_id(id)) { |
2d004c6c PA |
5192 | id = req->VolatileFileId; |
5193 | pid = req->PersistentFileId; | |
e2f34481 NJ |
5194 | } |
5195 | ||
5196 | fp = ksmbd_lookup_fd_slow(work, id, pid); | |
5197 | if (!fp) | |
5198 | return -ENOENT; | |
5199 | ||
5200 | fileinfoclass = req->FileInfoClass; | |
5201 | ||
5202 | switch (fileinfoclass) { | |
5203 | case FILE_ACCESS_INFORMATION: | |
cb451720 | 5204 | get_file_access_info(rsp, fp, work->response_buf); |
e2f34481 NJ |
5205 | break; |
5206 | ||
5207 | case FILE_BASIC_INFORMATION: | |
cb451720 | 5208 | rc = get_file_basic_info(rsp, fp, work->response_buf); |
e2f34481 NJ |
5209 | break; |
5210 | ||
5211 | case FILE_STANDARD_INFORMATION: | |
5614c8c4 | 5212 | rc = get_file_standard_info(rsp, fp, work->response_buf); |
e2f34481 NJ |
5213 | break; |
5214 | ||
5215 | case FILE_ALIGNMENT_INFORMATION: | |
cb451720 | 5216 | get_file_alignment_info(rsp, work->response_buf); |
e2f34481 NJ |
5217 | break; |
5218 | ||
5219 | case FILE_ALL_INFORMATION: | |
cb451720 | 5220 | rc = get_file_all_info(work, rsp, fp, work->response_buf); |
e2f34481 NJ |
5221 | break; |
5222 | ||
5223 | case FILE_ALTERNATE_NAME_INFORMATION: | |
cb451720 | 5224 | get_file_alternate_info(work, rsp, fp, work->response_buf); |
e2f34481 NJ |
5225 | break; |
5226 | ||
5227 | case FILE_STREAM_INFORMATION: | |
5614c8c4 | 5228 | rc = get_file_stream_info(work, rsp, fp, work->response_buf); |
e2f34481 NJ |
5229 | break; |
5230 | ||
5231 | case FILE_INTERNAL_INFORMATION: | |
5614c8c4 | 5232 | rc = get_file_internal_info(rsp, fp, work->response_buf); |
e2f34481 NJ |
5233 | break; |
5234 | ||
5235 | case FILE_NETWORK_OPEN_INFORMATION: | |
cb451720 | 5236 | rc = get_file_network_open_info(rsp, fp, work->response_buf); |
e2f34481 NJ |
5237 | break; |
5238 | ||
5239 | case FILE_EA_INFORMATION: | |
cb451720 | 5240 | get_file_ea_info(rsp, work->response_buf); |
e2f34481 NJ |
5241 | break; |
5242 | ||
5243 | case FILE_FULL_EA_INFORMATION: | |
cb451720 | 5244 | rc = smb2_get_ea(work, fp, req, rsp, work->response_buf); |
e2f34481 NJ |
5245 | break; |
5246 | ||
5247 | case FILE_POSITION_INFORMATION: | |
cb451720 | 5248 | get_file_position_info(rsp, fp, work->response_buf); |
e2f34481 NJ |
5249 | break; |
5250 | ||
5251 | case FILE_MODE_INFORMATION: | |
cb451720 | 5252 | get_file_mode_info(rsp, fp, work->response_buf); |
e2f34481 NJ |
5253 | break; |
5254 | ||
5255 | case FILE_COMPRESSION_INFORMATION: | |
5614c8c4 | 5256 | rc = get_file_compression_info(rsp, fp, work->response_buf); |
e2f34481 NJ |
5257 | break; |
5258 | ||
5259 | case FILE_ATTRIBUTE_TAG_INFORMATION: | |
cb451720 | 5260 | rc = get_file_attribute_tag_info(rsp, fp, work->response_buf); |
e2f34481 NJ |
5261 | break; |
5262 | case SMB_FIND_FILE_POSIX_INFO: | |
5263 | if (!work->tcon->posix_extensions) { | |
bde1694a | 5264 | pr_err("client doesn't negotiate with SMB3.1.1 POSIX Extensions\n"); |
e2f34481 NJ |
5265 | rc = -EOPNOTSUPP; |
5266 | } else { | |
5614c8c4 | 5267 | rc = find_file_posix_info(rsp, fp, work->response_buf); |
e2f34481 NJ |
5268 | } |
5269 | break; | |
5270 | default: | |
5271 | ksmbd_debug(SMB, "fileinfoclass %d not supported yet\n", | |
5272 | fileinfoclass); | |
5273 | rc = -EOPNOTSUPP; | |
5274 | } | |
5275 | if (!rc) | |
5276 | rc = buffer_check_err(le32_to_cpu(req->OutputBufferLength), | |
e2b76ab8 | 5277 | rsp, work->response_buf); |
e2f34481 NJ |
5278 | ksmbd_fd_put(work, fp); |
5279 | return rc; | |
5280 | } | |
5281 | ||
e2f34481 | 5282 | static int smb2_get_info_filesystem(struct ksmbd_work *work, |
070fb21e | 5283 | struct smb2_query_info_req *req, |
cb451720 | 5284 | struct smb2_query_info_rsp *rsp) |
e2f34481 NJ |
5285 | { |
5286 | struct ksmbd_session *sess = work->sess; | |
af7c39d9 | 5287 | struct ksmbd_conn *conn = work->conn; |
e2f34481 NJ |
5288 | struct ksmbd_share_config *share = work->tcon->share_conf; |
5289 | int fsinfoclass = 0; | |
5290 | struct kstatfs stfs; | |
5291 | struct path path; | |
5292 | int rc = 0, len; | |
a6a5fa77 | 5293 | |
3ac00a2a NJ |
5294 | if (!share->path) |
5295 | return -EIO; | |
5296 | ||
265fd199 | 5297 | rc = kern_path(share->path, LOOKUP_NO_SYMLINKS, &path); |
e2f34481 | 5298 | if (rc) { |
bde1694a | 5299 | pr_err("cannot create vfs path\n"); |
e2f34481 NJ |
5300 | return -EIO; |
5301 | } | |
5302 | ||
5303 | rc = vfs_statfs(&path, &stfs); | |
5304 | if (rc) { | |
bde1694a | 5305 | pr_err("cannot do stat of path %s\n", share->path); |
e2f34481 NJ |
5306 | path_put(&path); |
5307 | return -EIO; | |
5308 | } | |
5309 | ||
5310 | fsinfoclass = req->FileInfoClass; | |
5311 | ||
5312 | switch (fsinfoclass) { | |
5313 | case FS_DEVICE_INFORMATION: | |
5314 | { | |
5315 | struct filesystem_device_info *info; | |
5316 | ||
5317 | info = (struct filesystem_device_info *)rsp->Buffer; | |
5318 | ||
5319 | info->DeviceType = cpu_to_le32(stfs.f_type); | |
5320 | info->DeviceCharacteristics = cpu_to_le32(0x00000020); | |
5321 | rsp->OutputBufferLength = cpu_to_le32(8); | |
e2f34481 NJ |
5322 | break; |
5323 | } | |
5324 | case FS_ATTRIBUTE_INFORMATION: | |
5325 | { | |
5326 | struct filesystem_attribute_info *info; | |
5327 | size_t sz; | |
5328 | ||
5329 | info = (struct filesystem_attribute_info *)rsp->Buffer; | |
5330 | info->Attributes = cpu_to_le32(FILE_SUPPORTS_OBJECT_IDS | | |
5331 | FILE_PERSISTENT_ACLS | | |
5332 | FILE_UNICODE_ON_DISK | | |
5333 | FILE_CASE_PRESERVED_NAMES | | |
eb817368 NJ |
5334 | FILE_CASE_SENSITIVE_SEARCH | |
5335 | FILE_SUPPORTS_BLOCK_REFCOUNTING); | |
e2f34481 NJ |
5336 | |
5337 | info->Attributes |= cpu_to_le32(server_conf.share_fake_fscaps); | |
5338 | ||
728f14c7 NJ |
5339 | if (test_share_config_flag(work->tcon->share_conf, |
5340 | KSMBD_SHARE_FLAG_STREAMS)) | |
5341 | info->Attributes |= cpu_to_le32(FILE_NAMED_STREAMS); | |
5342 | ||
e2f34481 NJ |
5343 | info->MaxPathNameComponentLength = cpu_to_le32(stfs.f_namelen); |
5344 | len = smbConvertToUTF16((__le16 *)info->FileSystemName, | |
5345 | "NTFS", PATH_MAX, conn->local_nls, 0); | |
5346 | len = len * 2; | |
5347 | info->FileSystemNameLen = cpu_to_le32(len); | |
5348 | sz = sizeof(struct filesystem_attribute_info) - 2 + len; | |
5349 | rsp->OutputBufferLength = cpu_to_le32(sz); | |
e2f34481 NJ |
5350 | break; |
5351 | } | |
5352 | case FS_VOLUME_INFORMATION: | |
5353 | { | |
5354 | struct filesystem_vol_info *info; | |
5355 | size_t sz; | |
5d2f0b10 | 5356 | unsigned int serial_crc = 0; |
e2f34481 NJ |
5357 | |
5358 | info = (struct filesystem_vol_info *)(rsp->Buffer); | |
5359 | info->VolumeCreationTime = 0; | |
5d2f0b10 NJ |
5360 | serial_crc = crc32_le(serial_crc, share->name, |
5361 | strlen(share->name)); | |
5362 | serial_crc = crc32_le(serial_crc, share->path, | |
5363 | strlen(share->path)); | |
5364 | serial_crc = crc32_le(serial_crc, ksmbd_netbios_name(), | |
5365 | strlen(ksmbd_netbios_name())); | |
e2f34481 | 5366 | /* Taking dummy value of serial number*/ |
5d2f0b10 | 5367 | info->SerialNumber = cpu_to_le32(serial_crc); |
e2f34481 NJ |
5368 | len = smbConvertToUTF16((__le16 *)info->VolumeLabel, |
5369 | share->name, PATH_MAX, | |
5370 | conn->local_nls, 0); | |
5371 | len = len * 2; | |
5372 | info->VolumeLabelSize = cpu_to_le32(len); | |
5373 | info->Reserved = 0; | |
5374 | sz = sizeof(struct filesystem_vol_info) - 2 + len; | |
5375 | rsp->OutputBufferLength = cpu_to_le32(sz); | |
e2f34481 NJ |
5376 | break; |
5377 | } | |
5378 | case FS_SIZE_INFORMATION: | |
5379 | { | |
5380 | struct filesystem_info *info; | |
e2f34481 NJ |
5381 | |
5382 | info = (struct filesystem_info *)(rsp->Buffer); | |
e2f34481 NJ |
5383 | info->TotalAllocationUnits = cpu_to_le64(stfs.f_blocks); |
5384 | info->FreeAllocationUnits = cpu_to_le64(stfs.f_bfree); | |
ee81cae1 NJ |
5385 | info->SectorsPerAllocationUnit = cpu_to_le32(1); |
5386 | info->BytesPerSector = cpu_to_le32(stfs.f_bsize); | |
e2f34481 | 5387 | rsp->OutputBufferLength = cpu_to_le32(24); |
e2f34481 NJ |
5388 | break; |
5389 | } | |
5390 | case FS_FULL_SIZE_INFORMATION: | |
5391 | { | |
5392 | struct smb2_fs_full_size_info *info; | |
e2f34481 NJ |
5393 | |
5394 | info = (struct smb2_fs_full_size_info *)(rsp->Buffer); | |
e2f34481 NJ |
5395 | info->TotalAllocationUnits = cpu_to_le64(stfs.f_blocks); |
5396 | info->CallerAvailableAllocationUnits = | |
5397 | cpu_to_le64(stfs.f_bavail); | |
5398 | info->ActualAvailableAllocationUnits = | |
5399 | cpu_to_le64(stfs.f_bfree); | |
ee81cae1 NJ |
5400 | info->SectorsPerAllocationUnit = cpu_to_le32(1); |
5401 | info->BytesPerSector = cpu_to_le32(stfs.f_bsize); | |
e2f34481 | 5402 | rsp->OutputBufferLength = cpu_to_le32(32); |
e2f34481 NJ |
5403 | break; |
5404 | } | |
5405 | case FS_OBJECT_ID_INFORMATION: | |
5406 | { | |
5407 | struct object_id_info *info; | |
5408 | ||
5409 | info = (struct object_id_info *)(rsp->Buffer); | |
5410 | ||
5411 | if (!user_guest(sess->user)) | |
5412 | memcpy(info->objid, user_passkey(sess->user), 16); | |
5413 | else | |
5414 | memset(info->objid, 0, 16); | |
5415 | ||
5416 | info->extended_info.magic = cpu_to_le32(EXTENDED_INFO_MAGIC); | |
5417 | info->extended_info.version = cpu_to_le32(1); | |
5418 | info->extended_info.release = cpu_to_le32(1); | |
5419 | info->extended_info.rel_date = 0; | |
64b39f4a | 5420 | memcpy(info->extended_info.version_string, "1.1.0", strlen("1.1.0")); |
e2f34481 | 5421 | rsp->OutputBufferLength = cpu_to_le32(64); |
e2f34481 NJ |
5422 | break; |
5423 | } | |
5424 | case FS_SECTOR_SIZE_INFORMATION: | |
5425 | { | |
5426 | struct smb3_fs_ss_info *info; | |
02655a70 NJ |
5427 | unsigned int sector_size = |
5428 | min_t(unsigned int, path.mnt->mnt_sb->s_blocksize, 4096); | |
e2f34481 NJ |
5429 | |
5430 | info = (struct smb3_fs_ss_info *)(rsp->Buffer); | |
e2f34481 | 5431 | |
02655a70 | 5432 | info->LogicalBytesPerSector = cpu_to_le32(sector_size); |
e2f34481 | 5433 | info->PhysicalBytesPerSectorForAtomicity = |
02655a70 NJ |
5434 | cpu_to_le32(sector_size); |
5435 | info->PhysicalBytesPerSectorForPerf = cpu_to_le32(sector_size); | |
e2f34481 | 5436 | info->FSEffPhysicalBytesPerSectorForAtomicity = |
02655a70 | 5437 | cpu_to_le32(sector_size); |
e2f34481 NJ |
5438 | info->Flags = cpu_to_le32(SSINFO_FLAGS_ALIGNED_DEVICE | |
5439 | SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE); | |
5440 | info->ByteOffsetForSectorAlignment = 0; | |
5441 | info->ByteOffsetForPartitionAlignment = 0; | |
5442 | rsp->OutputBufferLength = cpu_to_le32(28); | |
e2f34481 NJ |
5443 | break; |
5444 | } | |
5445 | case FS_CONTROL_INFORMATION: | |
5446 | { | |
5447 | /* | |
5448 | * TODO : The current implementation is based on | |
5449 | * test result with win7(NTFS) server. It's need to | |
5450 | * modify this to get valid Quota values | |
5451 | * from Linux kernel | |
5452 | */ | |
5453 | struct smb2_fs_control_info *info; | |
5454 | ||
5455 | info = (struct smb2_fs_control_info *)(rsp->Buffer); | |
5456 | info->FreeSpaceStartFiltering = 0; | |
5457 | info->FreeSpaceThreshold = 0; | |
5458 | info->FreeSpaceStopFiltering = 0; | |
5459 | info->DefaultQuotaThreshold = cpu_to_le64(SMB2_NO_FID); | |
5460 | info->DefaultQuotaLimit = cpu_to_le64(SMB2_NO_FID); | |
5461 | info->Padding = 0; | |
5462 | rsp->OutputBufferLength = cpu_to_le32(48); | |
e2f34481 NJ |
5463 | break; |
5464 | } | |
5465 | case FS_POSIX_INFORMATION: | |
5466 | { | |
5467 | struct filesystem_posix_info *info; | |
e2f34481 NJ |
5468 | |
5469 | if (!work->tcon->posix_extensions) { | |
bde1694a | 5470 | pr_err("client doesn't negotiate with SMB3.1.1 POSIX Extensions\n"); |
e2f34481 NJ |
5471 | rc = -EOPNOTSUPP; |
5472 | } else { | |
5473 | info = (struct filesystem_posix_info *)(rsp->Buffer); | |
ee81cae1 | 5474 | info->OptimalTransferSize = cpu_to_le32(stfs.f_bsize); |
e2f34481 NJ |
5475 | info->BlockSize = cpu_to_le32(stfs.f_bsize); |
5476 | info->TotalBlocks = cpu_to_le64(stfs.f_blocks); | |
5477 | info->BlocksAvail = cpu_to_le64(stfs.f_bfree); | |
5478 | info->UserBlocksAvail = cpu_to_le64(stfs.f_bavail); | |
5479 | info->TotalFileNodes = cpu_to_le64(stfs.f_files); | |
5480 | info->FreeFileNodes = cpu_to_le64(stfs.f_ffree); | |
5481 | rsp->OutputBufferLength = cpu_to_le32(56); | |
e2f34481 NJ |
5482 | } |
5483 | break; | |
5484 | } | |
5485 | default: | |
5486 | path_put(&path); | |
5487 | return -EOPNOTSUPP; | |
5488 | } | |
5489 | rc = buffer_check_err(le32_to_cpu(req->OutputBufferLength), | |
e2b76ab8 | 5490 | rsp, work->response_buf); |
e2f34481 NJ |
5491 | path_put(&path); |
5492 | return rc; | |
5493 | } | |
5494 | ||
5495 | static int smb2_get_info_sec(struct ksmbd_work *work, | |
070fb21e | 5496 | struct smb2_query_info_req *req, |
cb451720 | 5497 | struct smb2_query_info_rsp *rsp) |
e2f34481 NJ |
5498 | { |
5499 | struct ksmbd_file *fp; | |
4609e1f1 | 5500 | struct mnt_idmap *idmap; |
e2f34481 NJ |
5501 | struct smb_ntsd *pntsd = (struct smb_ntsd *)rsp->Buffer, *ppntsd = NULL; |
5502 | struct smb_fattr fattr = {{0}}; | |
5503 | struct inode *inode; | |
8f054118 | 5504 | __u32 secdesclen = 0; |
e2f34481 NJ |
5505 | unsigned int id = KSMBD_NO_FID, pid = KSMBD_NO_FID; |
5506 | int addition_info = le32_to_cpu(req->AdditionalInformation); | |
8f054118 | 5507 | int rc = 0, ppntsd_size = 0; |
e2f34481 | 5508 | |
e294f78d NJ |
5509 | if (addition_info & ~(OWNER_SECINFO | GROUP_SECINFO | DACL_SECINFO | |
5510 | PROTECTED_DACL_SECINFO | | |
5511 | UNPROTECTED_DACL_SECINFO)) { | |
8e537d14 | 5512 | ksmbd_debug(SMB, "Unsupported addition info: 0x%x)\n", |
e294f78d | 5513 | addition_info); |
ced2b26a SG |
5514 | |
5515 | pntsd->revision = cpu_to_le16(1); | |
5516 | pntsd->type = cpu_to_le16(SELF_RELATIVE | DACL_PROTECTED); | |
5517 | pntsd->osidoffset = 0; | |
5518 | pntsd->gsidoffset = 0; | |
5519 | pntsd->sacloffset = 0; | |
5520 | pntsd->dacloffset = 0; | |
5521 | ||
5522 | secdesclen = sizeof(struct smb_ntsd); | |
5523 | rsp->OutputBufferLength = cpu_to_le32(secdesclen); | |
ced2b26a SG |
5524 | |
5525 | return 0; | |
5526 | } | |
5527 | ||
e2f34481 | 5528 | if (work->next_smb2_rcv_hdr_off) { |
2d004c6c | 5529 | if (!has_file_id(req->VolatileFileId)) { |
3867369e | 5530 | ksmbd_debug(SMB, "Compound request set FID = %llu\n", |
070fb21e | 5531 | work->compound_fid); |
e2f34481 NJ |
5532 | id = work->compound_fid; |
5533 | pid = work->compound_pfid; | |
5534 | } | |
5535 | } | |
5536 | ||
3867369e | 5537 | if (!has_file_id(id)) { |
2d004c6c PA |
5538 | id = req->VolatileFileId; |
5539 | pid = req->PersistentFileId; | |
e2f34481 NJ |
5540 | } |
5541 | ||
5542 | fp = ksmbd_lookup_fd_slow(work, id, pid); | |
5543 | if (!fp) | |
5544 | return -ENOENT; | |
5545 | ||
4609e1f1 | 5546 | idmap = file_mnt_idmap(fp->filp); |
ab0b263b | 5547 | inode = file_inode(fp->filp); |
e67fe633 | 5548 | ksmbd_acls_fattr(&fattr, idmap, inode); |
e2f34481 NJ |
5549 | |
5550 | if (test_share_config_flag(work->tcon->share_conf, | |
64b39f4a | 5551 | KSMBD_SHARE_FLAG_ACL_XATTR)) |
4609e1f1 | 5552 | ppntsd_size = ksmbd_vfs_get_sd_xattr(work->conn, idmap, |
8f054118 NJ |
5553 | fp->filp->f_path.dentry, |
5554 | &ppntsd); | |
5555 | ||
5556 | /* Check if sd buffer size exceeds response buffer size */ | |
5557 | if (smb2_resp_buf_len(work, 8) > ppntsd_size) | |
4d7ca409 | 5558 | rc = build_sec_desc(idmap, pntsd, ppntsd, ppntsd_size, |
8f054118 | 5559 | addition_info, &secdesclen, &fattr); |
e2f34481 NJ |
5560 | posix_acl_release(fattr.cf_acls); |
5561 | posix_acl_release(fattr.cf_dacls); | |
5562 | kfree(ppntsd); | |
5563 | ksmbd_fd_put(work, fp); | |
5564 | if (rc) | |
5565 | return rc; | |
5566 | ||
5567 | rsp->OutputBufferLength = cpu_to_le32(secdesclen); | |
e2f34481 NJ |
5568 | return 0; |
5569 | } | |
5570 | ||
5571 | /** | |
5572 | * smb2_query_info() - handler for smb2 query info command | |
5573 | * @work: smb work containing query info request buffer | |
5574 | * | |
5575 | * Return: 0 on success, otherwise error | |
5576 | */ | |
5577 | int smb2_query_info(struct ksmbd_work *work) | |
5578 | { | |
5579 | struct smb2_query_info_req *req; | |
cb451720 | 5580 | struct smb2_query_info_rsp *rsp; |
e2f34481 NJ |
5581 | int rc = 0; |
5582 | ||
e2f34481 NJ |
5583 | WORK_BUFFERS(work, req, rsp); |
5584 | ||
5585 | ksmbd_debug(SMB, "GOT query info request\n"); | |
5586 | ||
5587 | switch (req->InfoType) { | |
5588 | case SMB2_O_INFO_FILE: | |
5589 | ksmbd_debug(SMB, "GOT SMB2_O_INFO_FILE\n"); | |
cb451720 | 5590 | rc = smb2_get_info_file(work, req, rsp); |
e2f34481 NJ |
5591 | break; |
5592 | case SMB2_O_INFO_FILESYSTEM: | |
5593 | ksmbd_debug(SMB, "GOT SMB2_O_INFO_FILESYSTEM\n"); | |
cb451720 | 5594 | rc = smb2_get_info_filesystem(work, req, rsp); |
e2f34481 NJ |
5595 | break; |
5596 | case SMB2_O_INFO_SECURITY: | |
5597 | ksmbd_debug(SMB, "GOT SMB2_O_INFO_SECURITY\n"); | |
cb451720 | 5598 | rc = smb2_get_info_sec(work, req, rsp); |
e2f34481 NJ |
5599 | break; |
5600 | default: | |
5601 | ksmbd_debug(SMB, "InfoType %d not supported yet\n", | |
070fb21e | 5602 | req->InfoType); |
e2f34481 NJ |
5603 | rc = -EOPNOTSUPP; |
5604 | } | |
5605 | ||
e2b76ab8 NJ |
5606 | if (!rc) { |
5607 | rsp->StructureSize = cpu_to_le16(9); | |
5608 | rsp->OutputBufferOffset = cpu_to_le16(72); | |
5609 | rc = ksmbd_iov_pin_rsp(work, (void *)rsp, | |
5610 | offsetof(struct smb2_query_info_rsp, Buffer) + | |
5611 | le32_to_cpu(rsp->OutputBufferLength)); | |
5612 | } | |
5613 | ||
e2f34481 NJ |
5614 | if (rc < 0) { |
5615 | if (rc == -EACCES) | |
5616 | rsp->hdr.Status = STATUS_ACCESS_DENIED; | |
5617 | else if (rc == -ENOENT) | |
5618 | rsp->hdr.Status = STATUS_FILE_CLOSED; | |
5619 | else if (rc == -EIO) | |
5620 | rsp->hdr.Status = STATUS_UNEXPECTED_IO_ERROR; | |
e2b76ab8 NJ |
5621 | else if (rc == -ENOMEM) |
5622 | rsp->hdr.Status = STATUS_INSUFFICIENT_RESOURCES; | |
e2f34481 NJ |
5623 | else if (rc == -EOPNOTSUPP || rsp->hdr.Status == 0) |
5624 | rsp->hdr.Status = STATUS_INVALID_INFO_CLASS; | |
5625 | smb2_set_err_rsp(work); | |
5626 | ||
5627 | ksmbd_debug(SMB, "error while processing smb2 query rc = %d\n", | |
070fb21e | 5628 | rc); |
e2f34481 NJ |
5629 | return rc; |
5630 | } | |
e2f34481 NJ |
5631 | return 0; |
5632 | } | |
5633 | ||
5634 | /** | |
5635 | * smb2_close_pipe() - handler for closing IPC pipe | |
5636 | * @work: smb work containing close request buffer | |
5637 | * | |
5638 | * Return: 0 | |
5639 | */ | |
5640 | static noinline int smb2_close_pipe(struct ksmbd_work *work) | |
5641 | { | |
64b39f4a | 5642 | u64 id; |
7b7d709e NJ |
5643 | struct smb2_close_req *req; |
5644 | struct smb2_close_rsp *rsp; | |
5645 | ||
5646 | WORK_BUFFERS(work, req, rsp); | |
e2f34481 | 5647 | |
2d004c6c | 5648 | id = req->VolatileFileId; |
e2f34481 NJ |
5649 | ksmbd_session_rpc_close(work->sess, id); |
5650 | ||
5651 | rsp->StructureSize = cpu_to_le16(60); | |
5652 | rsp->Flags = 0; | |
5653 | rsp->Reserved = 0; | |
5654 | rsp->CreationTime = 0; | |
5655 | rsp->LastAccessTime = 0; | |
5656 | rsp->LastWriteTime = 0; | |
5657 | rsp->ChangeTime = 0; | |
5658 | rsp->AllocationSize = 0; | |
5659 | rsp->EndOfFile = 0; | |
5660 | rsp->Attributes = 0; | |
e2b76ab8 NJ |
5661 | |
5662 | return ksmbd_iov_pin_rsp(work, (void *)rsp, | |
5663 | sizeof(struct smb2_close_rsp)); | |
e2f34481 NJ |
5664 | } |
5665 | ||
5666 | /** | |
5667 | * smb2_close() - handler for smb2 close file command | |
5668 | * @work: smb work containing close request buffer | |
5669 | * | |
5670 | * Return: 0 | |
5671 | */ | |
5672 | int smb2_close(struct ksmbd_work *work) | |
5673 | { | |
3867369e | 5674 | u64 volatile_id = KSMBD_NO_FID; |
64b39f4a | 5675 | u64 sess_id; |
e2f34481 NJ |
5676 | struct smb2_close_req *req; |
5677 | struct smb2_close_rsp *rsp; | |
e2f34481 NJ |
5678 | struct ksmbd_conn *conn = work->conn; |
5679 | struct ksmbd_file *fp; | |
e2f34481 NJ |
5680 | u64 time; |
5681 | int err = 0; | |
5682 | ||
e2f34481 NJ |
5683 | WORK_BUFFERS(work, req, rsp); |
5684 | ||
5685 | if (test_share_config_flag(work->tcon->share_conf, | |
5686 | KSMBD_SHARE_FLAG_PIPE)) { | |
5687 | ksmbd_debug(SMB, "IPC pipe close request\n"); | |
5688 | return smb2_close_pipe(work); | |
5689 | } | |
5690 | ||
5691 | sess_id = le64_to_cpu(req->hdr.SessionId); | |
5692 | if (req->hdr.Flags & SMB2_FLAGS_RELATED_OPERATIONS) | |
5693 | sess_id = work->compound_sid; | |
5694 | ||
5695 | work->compound_sid = 0; | |
64b39f4a | 5696 | if (check_session_id(conn, sess_id)) { |
e2f34481 | 5697 | work->compound_sid = sess_id; |
64b39f4a | 5698 | } else { |
e2f34481 NJ |
5699 | rsp->hdr.Status = STATUS_USER_SESSION_DELETED; |
5700 | if (req->hdr.Flags & SMB2_FLAGS_RELATED_OPERATIONS) | |
5701 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; | |
5702 | err = -EBADF; | |
5703 | goto out; | |
5704 | } | |
5705 | ||
5706 | if (work->next_smb2_rcv_hdr_off && | |
2d004c6c | 5707 | !has_file_id(req->VolatileFileId)) { |
3867369e | 5708 | if (!has_file_id(work->compound_fid)) { |
e2f34481 NJ |
5709 | /* file already closed, return FILE_CLOSED */ |
5710 | ksmbd_debug(SMB, "file already closed\n"); | |
5711 | rsp->hdr.Status = STATUS_FILE_CLOSED; | |
5712 | err = -EBADF; | |
5713 | goto out; | |
5714 | } else { | |
3867369e NJ |
5715 | ksmbd_debug(SMB, |
5716 | "Compound request set FID = %llu:%llu\n", | |
070fb21e NJ |
5717 | work->compound_fid, |
5718 | work->compound_pfid); | |
e2f34481 NJ |
5719 | volatile_id = work->compound_fid; |
5720 | ||
5721 | /* file closed, stored id is not valid anymore */ | |
5722 | work->compound_fid = KSMBD_NO_FID; | |
5723 | work->compound_pfid = KSMBD_NO_FID; | |
5724 | } | |
5725 | } else { | |
2d004c6c | 5726 | volatile_id = req->VolatileFileId; |
e2f34481 | 5727 | } |
3867369e | 5728 | ksmbd_debug(SMB, "volatile_id = %llu\n", volatile_id); |
e2f34481 NJ |
5729 | |
5730 | rsp->StructureSize = cpu_to_le16(60); | |
5731 | rsp->Reserved = 0; | |
5732 | ||
5733 | if (req->Flags == SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB) { | |
5614c8c4 MM |
5734 | struct kstat stat; |
5735 | int ret; | |
5736 | ||
e2f34481 NJ |
5737 | fp = ksmbd_lookup_fd_fast(work, volatile_id); |
5738 | if (!fp) { | |
5739 | err = -ENOENT; | |
5740 | goto out; | |
5741 | } | |
5742 | ||
5614c8c4 MM |
5743 | ret = vfs_getattr(&fp->filp->f_path, &stat, STATX_BASIC_STATS, |
5744 | AT_STATX_SYNC_AS_STAT); | |
5745 | if (ret) { | |
5746 | ksmbd_fd_put(work, fp); | |
5747 | goto out; | |
5748 | } | |
5749 | ||
e2f34481 | 5750 | rsp->Flags = SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB; |
5614c8c4 MM |
5751 | rsp->AllocationSize = S_ISDIR(stat.mode) ? 0 : |
5752 | cpu_to_le64(stat.blocks << 9); | |
5753 | rsp->EndOfFile = cpu_to_le64(stat.size); | |
e2f34481 NJ |
5754 | rsp->Attributes = fp->f_ci->m_fattr; |
5755 | rsp->CreationTime = cpu_to_le64(fp->create_time); | |
5614c8c4 | 5756 | time = ksmbd_UnixTimeToNT(stat.atime); |
e2f34481 | 5757 | rsp->LastAccessTime = cpu_to_le64(time); |
5614c8c4 | 5758 | time = ksmbd_UnixTimeToNT(stat.mtime); |
e2f34481 | 5759 | rsp->LastWriteTime = cpu_to_le64(time); |
5614c8c4 | 5760 | time = ksmbd_UnixTimeToNT(stat.ctime); |
e2f34481 NJ |
5761 | rsp->ChangeTime = cpu_to_le64(time); |
5762 | ksmbd_fd_put(work, fp); | |
5763 | } else { | |
5764 | rsp->Flags = 0; | |
5765 | rsp->AllocationSize = 0; | |
5766 | rsp->EndOfFile = 0; | |
5767 | rsp->Attributes = 0; | |
5768 | rsp->CreationTime = 0; | |
5769 | rsp->LastAccessTime = 0; | |
5770 | rsp->LastWriteTime = 0; | |
5771 | rsp->ChangeTime = 0; | |
5772 | } | |
5773 | ||
5774 | err = ksmbd_close_fd(work, volatile_id); | |
5775 | out: | |
e2b76ab8 NJ |
5776 | if (!err) |
5777 | err = ksmbd_iov_pin_rsp(work, (void *)rsp, | |
5778 | sizeof(struct smb2_close_rsp)); | |
5779 | ||
e2f34481 NJ |
5780 | if (err) { |
5781 | if (rsp->hdr.Status == 0) | |
5782 | rsp->hdr.Status = STATUS_FILE_CLOSED; | |
5783 | smb2_set_err_rsp(work); | |
e2f34481 NJ |
5784 | } |
5785 | ||
e2b76ab8 | 5786 | return err; |
e2f34481 NJ |
5787 | } |
5788 | ||
5789 | /** | |
5790 | * smb2_echo() - handler for smb2 echo(ping) command | |
5791 | * @work: smb work containing echo request buffer | |
5792 | * | |
5793 | * Return: 0 | |
5794 | */ | |
5795 | int smb2_echo(struct ksmbd_work *work) | |
5796 | { | |
cb451720 | 5797 | struct smb2_echo_rsp *rsp = smb2_get_msg(work->response_buf); |
e2f34481 | 5798 | |
7b7d709e NJ |
5799 | if (work->next_smb2_rcv_hdr_off) |
5800 | rsp = ksmbd_resp_buf_next(work); | |
5801 | ||
e2f34481 NJ |
5802 | rsp->StructureSize = cpu_to_le16(4); |
5803 | rsp->Reserved = 0; | |
e2b76ab8 | 5804 | return ksmbd_iov_pin_rsp(work, rsp, sizeof(struct smb2_echo_rsp)); |
e2f34481 NJ |
5805 | } |
5806 | ||
da1e7ada CB |
5807 | static int smb2_rename(struct ksmbd_work *work, |
5808 | struct ksmbd_file *fp, | |
070fb21e NJ |
5809 | struct smb2_file_rename_info *file_info, |
5810 | struct nls_table *local_nls) | |
e2f34481 NJ |
5811 | { |
5812 | struct ksmbd_share_config *share = fp->tcon->share_conf; | |
74d7970f NJ |
5813 | char *new_name = NULL; |
5814 | int rc, flags = 0; | |
e2f34481 NJ |
5815 | |
5816 | ksmbd_debug(SMB, "setting FILE_RENAME_INFO\n"); | |
80917f17 | 5817 | new_name = smb2_get_name(file_info->FileName, |
e2f34481 NJ |
5818 | le32_to_cpu(file_info->FileNameLength), |
5819 | local_nls); | |
74d7970f NJ |
5820 | if (IS_ERR(new_name)) |
5821 | return PTR_ERR(new_name); | |
e2f34481 NJ |
5822 | |
5823 | if (strchr(new_name, ':')) { | |
5824 | int s_type; | |
5825 | char *xattr_stream_name, *stream_name = NULL; | |
5826 | size_t xattr_stream_size; | |
5827 | int len; | |
5828 | ||
5829 | rc = parse_stream_name(new_name, &stream_name, &s_type); | |
5830 | if (rc < 0) | |
5831 | goto out; | |
5832 | ||
5833 | len = strlen(new_name); | |
265fd199 | 5834 | if (len > 0 && new_name[len - 1] != '/') { |
bde1694a | 5835 | pr_err("not allow base filename in rename\n"); |
e2f34481 NJ |
5836 | rc = -ESHARE; |
5837 | goto out; | |
5838 | } | |
5839 | ||
5840 | rc = ksmbd_vfs_xattr_stream_name(stream_name, | |
5841 | &xattr_stream_name, | |
5842 | &xattr_stream_size, | |
5843 | s_type); | |
5844 | if (rc) | |
5845 | goto out; | |
5846 | ||
74d7970f | 5847 | rc = ksmbd_vfs_setxattr(file_mnt_idmap(fp->filp), |
40b268d3 | 5848 | &fp->filp->f_path, |
e2f34481 | 5849 | xattr_stream_name, |
864fb5d3 | 5850 | NULL, 0, 0, true); |
e2f34481 | 5851 | if (rc < 0) { |
bde1694a NJ |
5852 | pr_err("failed to store stream name in xattr: %d\n", |
5853 | rc); | |
e2f34481 NJ |
5854 | rc = -EINVAL; |
5855 | goto out; | |
5856 | } | |
5857 | ||
5858 | goto out; | |
5859 | } | |
5860 | ||
5861 | ksmbd_debug(SMB, "new name %s\n", new_name); | |
e2f34481 NJ |
5862 | if (ksmbd_share_veto_filename(share, new_name)) { |
5863 | rc = -ENOENT; | |
5864 | ksmbd_debug(SMB, "Can't rename vetoed file: %s\n", new_name); | |
5865 | goto out; | |
5866 | } | |
5867 | ||
74d7970f NJ |
5868 | if (!file_info->ReplaceIfExists) |
5869 | flags = RENAME_NOREPLACE; | |
e2f34481 | 5870 | |
74d7970f | 5871 | rc = ksmbd_vfs_rename(work, &fp->filp->f_path, new_name, flags); |
c1832f67 NJ |
5872 | if (!rc) |
5873 | smb_break_all_levII_oplock(work, fp, 0); | |
e2f34481 | 5874 | out: |
74d7970f | 5875 | kfree(new_name); |
e2f34481 NJ |
5876 | return rc; |
5877 | } | |
5878 | ||
e2f34481 | 5879 | static int smb2_create_link(struct ksmbd_work *work, |
070fb21e NJ |
5880 | struct ksmbd_share_config *share, |
5881 | struct smb2_file_link_info *file_info, | |
9496e268 | 5882 | unsigned int buf_len, struct file *filp, |
070fb21e | 5883 | struct nls_table *local_nls) |
e2f34481 NJ |
5884 | { |
5885 | char *link_name = NULL, *target_name = NULL, *pathname = NULL; | |
2b57a432 | 5886 | struct path path, parent_path; |
df14afee | 5887 | bool file_present = false; |
e2f34481 NJ |
5888 | int rc; |
5889 | ||
9496e268 NJ |
5890 | if (buf_len < (u64)sizeof(struct smb2_file_link_info) + |
5891 | le32_to_cpu(file_info->FileNameLength)) | |
5892 | return -EINVAL; | |
5893 | ||
e2f34481 NJ |
5894 | ksmbd_debug(SMB, "setting FILE_LINK_INFORMATION\n"); |
5895 | pathname = kmalloc(PATH_MAX, GFP_KERNEL); | |
5896 | if (!pathname) | |
5897 | return -ENOMEM; | |
5898 | ||
80917f17 | 5899 | link_name = smb2_get_name(file_info->FileName, |
e2f34481 NJ |
5900 | le32_to_cpu(file_info->FileNameLength), |
5901 | local_nls); | |
5902 | if (IS_ERR(link_name) || S_ISDIR(file_inode(filp)->i_mode)) { | |
5903 | rc = -EINVAL; | |
5904 | goto out; | |
5905 | } | |
5906 | ||
5907 | ksmbd_debug(SMB, "link name is %s\n", link_name); | |
2f5930c1 | 5908 | target_name = file_path(filp, pathname, PATH_MAX); |
e2f34481 NJ |
5909 | if (IS_ERR(target_name)) { |
5910 | rc = -EINVAL; | |
5911 | goto out; | |
5912 | } | |
5913 | ||
5914 | ksmbd_debug(SMB, "target name is %s\n", target_name); | |
74d7970f | 5915 | rc = ksmbd_vfs_kern_path_locked(work, link_name, LOOKUP_NO_SYMLINKS, |
2b57a432 | 5916 | &parent_path, &path, 0); |
265fd199 HL |
5917 | if (rc) { |
5918 | if (rc != -ENOENT) | |
5919 | goto out; | |
df14afee NJ |
5920 | } else |
5921 | file_present = true; | |
e2f34481 NJ |
5922 | |
5923 | if (file_info->ReplaceIfExists) { | |
5924 | if (file_present) { | |
74d7970f | 5925 | rc = ksmbd_vfs_remove_file(work, &path); |
e2f34481 NJ |
5926 | if (rc) { |
5927 | rc = -EINVAL; | |
5928 | ksmbd_debug(SMB, "cannot delete %s\n", | |
070fb21e | 5929 | link_name); |
e2f34481 NJ |
5930 | goto out; |
5931 | } | |
5932 | } | |
5933 | } else { | |
5934 | if (file_present) { | |
5935 | rc = -EEXIST; | |
5936 | ksmbd_debug(SMB, "link already exists\n"); | |
5937 | goto out; | |
5938 | } | |
5939 | } | |
5940 | ||
5941 | rc = ksmbd_vfs_link(work, target_name, link_name); | |
5942 | if (rc) | |
5943 | rc = -EINVAL; | |
5944 | out: | |
864fb5d3 NJ |
5945 | if (file_present) |
5946 | ksmbd_vfs_kern_path_unlock(&parent_path, &path); | |
5947 | ||
e2f34481 | 5948 | if (!IS_ERR(link_name)) |
915f570a | 5949 | kfree(link_name); |
e2f34481 NJ |
5950 | kfree(pathname); |
5951 | return rc; | |
5952 | } | |
5953 | ||
9496e268 NJ |
5954 | static int set_file_basic_info(struct ksmbd_file *fp, |
5955 | struct smb2_file_basic_info *file_info, | |
070fb21e | 5956 | struct ksmbd_share_config *share) |
e2f34481 | 5957 | { |
e2f34481 | 5958 | struct iattr attrs; |
e2f34481 NJ |
5959 | struct file *filp; |
5960 | struct inode *inode; | |
abf08576 | 5961 | struct mnt_idmap *idmap; |
4ffd5264 | 5962 | int rc = 0; |
e2f34481 | 5963 | |
7adfd4f6 | 5964 | if (!(fp->daccess & FILE_WRITE_ATTRIBUTES_LE)) |
e2f34481 NJ |
5965 | return -EACCES; |
5966 | ||
e2f34481 NJ |
5967 | attrs.ia_valid = 0; |
5968 | filp = fp->filp; | |
5969 | inode = file_inode(filp); | |
abf08576 | 5970 | idmap = file_mnt_idmap(filp); |
e2f34481 NJ |
5971 | |
5972 | if (file_info->CreationTime) | |
5973 | fp->create_time = le64_to_cpu(file_info->CreationTime); | |
5974 | ||
5975 | if (file_info->LastAccessTime) { | |
5976 | attrs.ia_atime = ksmbd_NTtimeToUnix(file_info->LastAccessTime); | |
5977 | attrs.ia_valid |= (ATTR_ATIME | ATTR_ATIME_SET); | |
5978 | } | |
5979 | ||
64e78755 NJ |
5980 | attrs.ia_valid |= ATTR_CTIME; |
5981 | if (file_info->ChangeTime) | |
db7fb6fe | 5982 | attrs.ia_ctime = ksmbd_NTtimeToUnix(file_info->ChangeTime); |
64e78755 | 5983 | else |
94487653 | 5984 | attrs.ia_ctime = inode_get_ctime(inode); |
e2f34481 NJ |
5985 | |
5986 | if (file_info->LastWriteTime) { | |
5987 | attrs.ia_mtime = ksmbd_NTtimeToUnix(file_info->LastWriteTime); | |
5988 | attrs.ia_valid |= (ATTR_MTIME | ATTR_MTIME_SET); | |
5989 | } | |
5990 | ||
5991 | if (file_info->Attributes) { | |
5992 | if (!S_ISDIR(inode->i_mode) && | |
26a2787d | 5993 | file_info->Attributes & FILE_ATTRIBUTE_DIRECTORY_LE) { |
bde1694a | 5994 | pr_err("can't change a file to a directory\n"); |
e2f34481 NJ |
5995 | return -EINVAL; |
5996 | } | |
5997 | ||
26a2787d | 5998 | if (!(S_ISDIR(inode->i_mode) && file_info->Attributes == FILE_ATTRIBUTE_NORMAL_LE)) |
e2f34481 | 5999 | fp->f_ci->m_fattr = file_info->Attributes | |
26a2787d | 6000 | (fp->f_ci->m_fattr & FILE_ATTRIBUTE_DIRECTORY_LE); |
e2f34481 NJ |
6001 | } |
6002 | ||
6003 | if (test_share_config_flag(share, KSMBD_SHARE_FLAG_STORE_DOS_ATTRS) && | |
6004 | (file_info->CreationTime || file_info->Attributes)) { | |
6005 | struct xattr_dos_attrib da = {0}; | |
6006 | ||
6007 | da.version = 4; | |
6008 | da.itime = fp->itime; | |
6009 | da.create_time = fp->create_time; | |
6010 | da.attr = le32_to_cpu(fp->f_ci->m_fattr); | |
6011 | da.flags = XATTR_DOSINFO_ATTRIB | XATTR_DOSINFO_CREATE_TIME | | |
6012 | XATTR_DOSINFO_ITIME; | |
6013 | ||
864fb5d3 NJ |
6014 | rc = ksmbd_vfs_set_dos_attrib_xattr(idmap, &filp->f_path, &da, |
6015 | true); | |
e2f34481 NJ |
6016 | if (rc) |
6017 | ksmbd_debug(SMB, | |
070fb21e | 6018 | "failed to restore file attribute in EA\n"); |
e2f34481 NJ |
6019 | rc = 0; |
6020 | } | |
6021 | ||
e2f34481 NJ |
6022 | if (attrs.ia_valid) { |
6023 | struct dentry *dentry = filp->f_path.dentry; | |
6024 | struct inode *inode = d_inode(dentry); | |
6025 | ||
6026 | if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) | |
6027 | return -EACCES; | |
6028 | ||
e2f34481 | 6029 | inode_lock(inode); |
94487653 | 6030 | inode_set_ctime_to_ts(inode, attrs.ia_ctime); |
64e78755 | 6031 | attrs.ia_valid &= ~ATTR_CTIME; |
abf08576 | 6032 | rc = notify_change(idmap, dentry, &attrs, NULL); |
e2f34481 NJ |
6033 | inode_unlock(inode); |
6034 | } | |
eb5784f0 | 6035 | return rc; |
e2f34481 NJ |
6036 | } |
6037 | ||
6038 | static int set_file_allocation_info(struct ksmbd_work *work, | |
9496e268 NJ |
6039 | struct ksmbd_file *fp, |
6040 | struct smb2_file_alloc_info *file_alloc_info) | |
e2f34481 NJ |
6041 | { |
6042 | /* | |
6043 | * TODO : It's working fine only when store dos attributes | |
6044 | * is not yes. need to implement a logic which works | |
6045 | * properly with any smb.conf option | |
6046 | */ | |
6047 | ||
e2f34481 NJ |
6048 | loff_t alloc_blks; |
6049 | struct inode *inode; | |
34cd86b6 | 6050 | struct kstat stat; |
e2f34481 NJ |
6051 | int rc; |
6052 | ||
a299669b | 6053 | if (!(fp->daccess & FILE_WRITE_DATA_LE)) |
e2f34481 NJ |
6054 | return -EACCES; |
6055 | ||
34cd86b6 MM |
6056 | rc = vfs_getattr(&fp->filp->f_path, &stat, STATX_BASIC_STATS, |
6057 | AT_STATX_SYNC_AS_STAT); | |
6058 | if (rc) | |
6059 | return rc; | |
6060 | ||
e2f34481 NJ |
6061 | alloc_blks = (le64_to_cpu(file_alloc_info->AllocationSize) + 511) >> 9; |
6062 | inode = file_inode(fp->filp); | |
6063 | ||
34cd86b6 | 6064 | if (alloc_blks > stat.blocks) { |
e8c06191 NJ |
6065 | smb_break_all_levII_oplock(work, fp, 1); |
6066 | rc = vfs_fallocate(fp->filp, FALLOC_FL_KEEP_SIZE, 0, | |
6067 | alloc_blks * 512); | |
e2f34481 | 6068 | if (rc && rc != -EOPNOTSUPP) { |
e8c06191 | 6069 | pr_err("vfs_fallocate is failed : %d\n", rc); |
e2f34481 NJ |
6070 | return rc; |
6071 | } | |
34cd86b6 | 6072 | } else if (alloc_blks < stat.blocks) { |
e2f34481 NJ |
6073 | loff_t size; |
6074 | ||
6075 | /* | |
6076 | * Allocation size could be smaller than original one | |
6077 | * which means allocated blocks in file should be | |
6078 | * deallocated. use truncate to cut out it, but inode | |
6079 | * size is also updated with truncate offset. | |
6080 | * inode size is retained by backup inode size. | |
6081 | */ | |
6082 | size = i_size_read(inode); | |
265fd199 | 6083 | rc = ksmbd_vfs_truncate(work, fp, alloc_blks * 512); |
e2f34481 | 6084 | if (rc) { |
50f500b7 | 6085 | pr_err("truncate failed!, err %d\n", rc); |
e2f34481 NJ |
6086 | return rc; |
6087 | } | |
6088 | if (size < alloc_blks * 512) | |
6089 | i_size_write(inode, size); | |
6090 | } | |
6091 | return 0; | |
6092 | } | |
6093 | ||
64b39f4a | 6094 | static int set_end_of_file_info(struct ksmbd_work *work, struct ksmbd_file *fp, |
9496e268 | 6095 | struct smb2_file_eof_info *file_eof_info) |
e2f34481 | 6096 | { |
e2f34481 NJ |
6097 | loff_t newsize; |
6098 | struct inode *inode; | |
6099 | int rc; | |
6100 | ||
a299669b | 6101 | if (!(fp->daccess & FILE_WRITE_DATA_LE)) |
e2f34481 NJ |
6102 | return -EACCES; |
6103 | ||
e2f34481 NJ |
6104 | newsize = le64_to_cpu(file_eof_info->EndOfFile); |
6105 | inode = file_inode(fp->filp); | |
6106 | ||
6107 | /* | |
6108 | * If FILE_END_OF_FILE_INFORMATION of set_info_file is called | |
6109 | * on FAT32 shared device, truncate execution time is too long | |
6110 | * and network error could cause from windows client. because | |
6111 | * truncate of some filesystem like FAT32 fill zero data in | |
6112 | * truncated range. | |
6113 | */ | |
6114 | if (inode->i_sb->s_magic != MSDOS_SUPER_MAGIC) { | |
50f500b7 | 6115 | ksmbd_debug(SMB, "truncated to newsize %lld\n", newsize); |
265fd199 | 6116 | rc = ksmbd_vfs_truncate(work, fp, newsize); |
e2f34481 | 6117 | if (rc) { |
50f500b7 | 6118 | ksmbd_debug(SMB, "truncate failed!, err %d\n", rc); |
e2f34481 NJ |
6119 | if (rc != -EAGAIN) |
6120 | rc = -EBADF; | |
6121 | return rc; | |
6122 | } | |
6123 | } | |
6124 | return 0; | |
6125 | } | |
6126 | ||
64b39f4a | 6127 | static int set_rename_info(struct ksmbd_work *work, struct ksmbd_file *fp, |
9496e268 NJ |
6128 | struct smb2_file_rename_info *rename_info, |
6129 | unsigned int buf_len) | |
e2f34481 | 6130 | { |
e2f34481 | 6131 | if (!(fp->daccess & FILE_DELETE_LE)) { |
bde1694a | 6132 | pr_err("no right to delete : 0x%x\n", fp->daccess); |
e2f34481 NJ |
6133 | return -EACCES; |
6134 | } | |
6135 | ||
9496e268 NJ |
6136 | if (buf_len < (u64)sizeof(struct smb2_file_rename_info) + |
6137 | le32_to_cpu(rename_info->FileNameLength)) | |
6138 | return -EINVAL; | |
6139 | ||
74d7970f NJ |
6140 | if (!le32_to_cpu(rename_info->FileNameLength)) |
6141 | return -EINVAL; | |
12202c05 | 6142 | |
74d7970f | 6143 | return smb2_rename(work, fp, rename_info, work->conn->local_nls); |
e2f34481 NJ |
6144 | } |
6145 | ||
9496e268 NJ |
6146 | static int set_file_disposition_info(struct ksmbd_file *fp, |
6147 | struct smb2_file_disposition_info *file_info) | |
e2f34481 | 6148 | { |
e2f34481 NJ |
6149 | struct inode *inode; |
6150 | ||
6151 | if (!(fp->daccess & FILE_DELETE_LE)) { | |
bde1694a | 6152 | pr_err("no right to delete : 0x%x\n", fp->daccess); |
e2f34481 NJ |
6153 | return -EACCES; |
6154 | } | |
6155 | ||
6156 | inode = file_inode(fp->filp); | |
e2f34481 NJ |
6157 | if (file_info->DeletePending) { |
6158 | if (S_ISDIR(inode->i_mode) && | |
64b39f4a | 6159 | ksmbd_vfs_empty_dir(fp) == -ENOTEMPTY) |
e2f34481 NJ |
6160 | return -EBUSY; |
6161 | ksmbd_set_inode_pending_delete(fp); | |
6162 | } else { | |
6163 | ksmbd_clear_inode_pending_delete(fp); | |
6164 | } | |
6165 | return 0; | |
6166 | } | |
6167 | ||
9496e268 NJ |
6168 | static int set_file_position_info(struct ksmbd_file *fp, |
6169 | struct smb2_file_pos_info *file_info) | |
e2f34481 | 6170 | { |
e2f34481 | 6171 | loff_t current_byte_offset; |
ee81cae1 | 6172 | unsigned long sector_size; |
e2f34481 NJ |
6173 | struct inode *inode; |
6174 | ||
6175 | inode = file_inode(fp->filp); | |
e2f34481 | 6176 | current_byte_offset = le64_to_cpu(file_info->CurrentByteOffset); |
ee81cae1 | 6177 | sector_size = inode->i_sb->s_blocksize; |
e2f34481 NJ |
6178 | |
6179 | if (current_byte_offset < 0 || | |
64b39f4a NJ |
6180 | (fp->coption == FILE_NO_INTERMEDIATE_BUFFERING_LE && |
6181 | current_byte_offset & (sector_size - 1))) { | |
bde1694a NJ |
6182 | pr_err("CurrentByteOffset is not valid : %llu\n", |
6183 | current_byte_offset); | |
e2f34481 NJ |
6184 | return -EINVAL; |
6185 | } | |
6186 | ||
6187 | fp->filp->f_pos = current_byte_offset; | |
6188 | return 0; | |
6189 | } | |
6190 | ||
9496e268 NJ |
6191 | static int set_file_mode_info(struct ksmbd_file *fp, |
6192 | struct smb2_file_mode_info *file_info) | |
e2f34481 | 6193 | { |
e2f34481 NJ |
6194 | __le32 mode; |
6195 | ||
e2f34481 NJ |
6196 | mode = file_info->Mode; |
6197 | ||
26a2787d | 6198 | if ((mode & ~FILE_MODE_INFO_MASK)) { |
bde1694a | 6199 | pr_err("Mode is not valid : 0x%x\n", le32_to_cpu(mode)); |
e2f34481 NJ |
6200 | return -EINVAL; |
6201 | } | |
6202 | ||
6203 | /* | |
6204 | * TODO : need to implement consideration for | |
6205 | * FILE_SYNCHRONOUS_IO_ALERT and FILE_SYNCHRONOUS_IO_NONALERT | |
6206 | */ | |
6207 | ksmbd_vfs_set_fadvise(fp->filp, mode); | |
6208 | fp->coption = mode; | |
6209 | return 0; | |
6210 | } | |
6211 | ||
6212 | /** | |
6213 | * smb2_set_info_file() - handler for smb2 set info command | |
6214 | * @work: smb work containing set info command buffer | |
95fa1ce9 | 6215 | * @fp: ksmbd_file pointer |
4bfd9eed | 6216 | * @req: request buffer pointer |
95fa1ce9 | 6217 | * @share: ksmbd_share_config pointer |
e2f34481 NJ |
6218 | * |
6219 | * Return: 0 on success, otherwise error | |
6220 | * TODO: need to implement an error handling for STATUS_INFO_LENGTH_MISMATCH | |
6221 | */ | |
64b39f4a | 6222 | static int smb2_set_info_file(struct ksmbd_work *work, struct ksmbd_file *fp, |
9496e268 | 6223 | struct smb2_set_info_req *req, |
070fb21e | 6224 | struct ksmbd_share_config *share) |
e2f34481 | 6225 | { |
9496e268 | 6226 | unsigned int buf_len = le32_to_cpu(req->BufferLength); |
c6cd2e8d | 6227 | char *buffer = (char *)req + le16_to_cpu(req->BufferOffset); |
9496e268 NJ |
6228 | |
6229 | switch (req->FileInfoClass) { | |
e2f34481 | 6230 | case FILE_BASIC_INFORMATION: |
9496e268 NJ |
6231 | { |
6232 | if (buf_len < sizeof(struct smb2_file_basic_info)) | |
6233 | return -EINVAL; | |
e2f34481 | 6234 | |
c6cd2e8d | 6235 | return set_file_basic_info(fp, (struct smb2_file_basic_info *)buffer, share); |
9496e268 | 6236 | } |
e2f34481 | 6237 | case FILE_ALLOCATION_INFORMATION: |
9496e268 NJ |
6238 | { |
6239 | if (buf_len < sizeof(struct smb2_file_alloc_info)) | |
6240 | return -EINVAL; | |
e2f34481 | 6241 | |
9496e268 | 6242 | return set_file_allocation_info(work, fp, |
c6cd2e8d | 6243 | (struct smb2_file_alloc_info *)buffer); |
9496e268 | 6244 | } |
e2f34481 | 6245 | case FILE_END_OF_FILE_INFORMATION: |
9496e268 NJ |
6246 | { |
6247 | if (buf_len < sizeof(struct smb2_file_eof_info)) | |
6248 | return -EINVAL; | |
e2f34481 | 6249 | |
9496e268 | 6250 | return set_end_of_file_info(work, fp, |
c6cd2e8d | 6251 | (struct smb2_file_eof_info *)buffer); |
9496e268 | 6252 | } |
e2f34481 | 6253 | case FILE_RENAME_INFORMATION: |
9496e268 | 6254 | { |
9496e268 NJ |
6255 | if (buf_len < sizeof(struct smb2_file_rename_info)) |
6256 | return -EINVAL; | |
6257 | ||
6258 | return set_rename_info(work, fp, | |
c6cd2e8d | 6259 | (struct smb2_file_rename_info *)buffer, |
9496e268 NJ |
6260 | buf_len); |
6261 | } | |
e2f34481 | 6262 | case FILE_LINK_INFORMATION: |
9496e268 NJ |
6263 | { |
6264 | if (buf_len < sizeof(struct smb2_file_link_info)) | |
6265 | return -EINVAL; | |
6266 | ||
e2f34481 | 6267 | return smb2_create_link(work, work->tcon->share_conf, |
c6cd2e8d | 6268 | (struct smb2_file_link_info *)buffer, |
9496e268 | 6269 | buf_len, fp->filp, |
af7c39d9 | 6270 | work->conn->local_nls); |
9496e268 | 6271 | } |
e2f34481 | 6272 | case FILE_DISPOSITION_INFORMATION: |
9496e268 | 6273 | { |
9496e268 NJ |
6274 | if (buf_len < sizeof(struct smb2_file_disposition_info)) |
6275 | return -EINVAL; | |
6276 | ||
6277 | return set_file_disposition_info(fp, | |
c6cd2e8d | 6278 | (struct smb2_file_disposition_info *)buffer); |
9496e268 | 6279 | } |
e2f34481 NJ |
6280 | case FILE_FULL_EA_INFORMATION: |
6281 | { | |
6282 | if (!(fp->daccess & FILE_WRITE_EA_LE)) { | |
bde1694a NJ |
6283 | pr_err("Not permitted to write ext attr: 0x%x\n", |
6284 | fp->daccess); | |
e2f34481 NJ |
6285 | return -EACCES; |
6286 | } | |
6287 | ||
9496e268 NJ |
6288 | if (buf_len < sizeof(struct smb2_ea_info)) |
6289 | return -EINVAL; | |
e2f34481 | 6290 | |
c6cd2e8d | 6291 | return smb2_set_ea((struct smb2_ea_info *)buffer, |
6fc0a265 | 6292 | buf_len, &fp->filp->f_path, true); |
9496e268 | 6293 | } |
e2f34481 | 6294 | case FILE_POSITION_INFORMATION: |
9496e268 NJ |
6295 | { |
6296 | if (buf_len < sizeof(struct smb2_file_pos_info)) | |
6297 | return -EINVAL; | |
e2f34481 | 6298 | |
c6cd2e8d | 6299 | return set_file_position_info(fp, (struct smb2_file_pos_info *)buffer); |
9496e268 | 6300 | } |
e2f34481 | 6301 | case FILE_MODE_INFORMATION: |
9496e268 NJ |
6302 | { |
6303 | if (buf_len < sizeof(struct smb2_file_mode_info)) | |
6304 | return -EINVAL; | |
6305 | ||
c6cd2e8d | 6306 | return set_file_mode_info(fp, (struct smb2_file_mode_info *)buffer); |
9496e268 | 6307 | } |
e2f34481 NJ |
6308 | } |
6309 | ||
9496e268 | 6310 | pr_err("Unimplemented Fileinfoclass :%d\n", req->FileInfoClass); |
e2f34481 NJ |
6311 | return -EOPNOTSUPP; |
6312 | } | |
6313 | ||
64b39f4a | 6314 | static int smb2_set_info_sec(struct ksmbd_file *fp, int addition_info, |
070fb21e | 6315 | char *buffer, int buf_len) |
e2f34481 NJ |
6316 | { |
6317 | struct smb_ntsd *pntsd = (struct smb_ntsd *)buffer; | |
6318 | ||
6319 | fp->saccess |= FILE_SHARE_DELETE_LE; | |
6320 | ||
ef24c962 | 6321 | return set_info_sec(fp->conn, fp->tcon, &fp->filp->f_path, pntsd, |
864fb5d3 | 6322 | buf_len, false, true); |
e2f34481 NJ |
6323 | } |
6324 | ||
6325 | /** | |
6326 | * smb2_set_info() - handler for smb2 set info command handler | |
6327 | * @work: smb work containing set info request buffer | |
6328 | * | |
6329 | * Return: 0 on success, otherwise error | |
6330 | */ | |
6331 | int smb2_set_info(struct ksmbd_work *work) | |
6332 | { | |
6333 | struct smb2_set_info_req *req; | |
cb451720 | 6334 | struct smb2_set_info_rsp *rsp; |
d592a915 | 6335 | struct ksmbd_file *fp = NULL; |
e2f34481 NJ |
6336 | int rc = 0; |
6337 | unsigned int id = KSMBD_NO_FID, pid = KSMBD_NO_FID; | |
6338 | ||
6339 | ksmbd_debug(SMB, "Received set info request\n"); | |
6340 | ||
e2f34481 | 6341 | if (work->next_smb2_rcv_hdr_off) { |
8a893315 NJ |
6342 | req = ksmbd_req_buf_next(work); |
6343 | rsp = ksmbd_resp_buf_next(work); | |
2d004c6c | 6344 | if (!has_file_id(req->VolatileFileId)) { |
3867369e | 6345 | ksmbd_debug(SMB, "Compound request set FID = %llu\n", |
070fb21e | 6346 | work->compound_fid); |
e2f34481 NJ |
6347 | id = work->compound_fid; |
6348 | pid = work->compound_pfid; | |
6349 | } | |
6350 | } else { | |
cb451720 NJ |
6351 | req = smb2_get_msg(work->request_buf); |
6352 | rsp = smb2_get_msg(work->response_buf); | |
e2f34481 NJ |
6353 | } |
6354 | ||
d592a915 NJ |
6355 | if (!test_tree_conn_flag(work->tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) { |
6356 | ksmbd_debug(SMB, "User does not have write permission\n"); | |
6357 | pr_err("User does not have write permission\n"); | |
6358 | rc = -EACCES; | |
6359 | goto err_out; | |
6360 | } | |
6361 | ||
3867369e | 6362 | if (!has_file_id(id)) { |
2d004c6c PA |
6363 | id = req->VolatileFileId; |
6364 | pid = req->PersistentFileId; | |
e2f34481 NJ |
6365 | } |
6366 | ||
6367 | fp = ksmbd_lookup_fd_slow(work, id, pid); | |
6368 | if (!fp) { | |
6369 | ksmbd_debug(SMB, "Invalid id for close: %u\n", id); | |
6370 | rc = -ENOENT; | |
6371 | goto err_out; | |
6372 | } | |
6373 | ||
6374 | switch (req->InfoType) { | |
6375 | case SMB2_O_INFO_FILE: | |
6376 | ksmbd_debug(SMB, "GOT SMB2_O_INFO_FILE\n"); | |
9496e268 | 6377 | rc = smb2_set_info_file(work, fp, req, work->tcon->share_conf); |
e2f34481 NJ |
6378 | break; |
6379 | case SMB2_O_INFO_SECURITY: | |
6380 | ksmbd_debug(SMB, "GOT SMB2_O_INFO_SECURITY\n"); | |
e70e392f NJ |
6381 | if (ksmbd_override_fsids(work)) { |
6382 | rc = -ENOMEM; | |
6383 | goto err_out; | |
6384 | } | |
e2f34481 | 6385 | rc = smb2_set_info_sec(fp, |
070fb21e | 6386 | le32_to_cpu(req->AdditionalInformation), |
c6cd2e8d | 6387 | (char *)req + le16_to_cpu(req->BufferOffset), |
070fb21e | 6388 | le32_to_cpu(req->BufferLength)); |
e70e392f | 6389 | ksmbd_revert_fsids(work); |
e2f34481 NJ |
6390 | break; |
6391 | default: | |
6392 | rc = -EOPNOTSUPP; | |
6393 | } | |
6394 | ||
6395 | if (rc < 0) | |
6396 | goto err_out; | |
6397 | ||
6398 | rsp->StructureSize = cpu_to_le16(2); | |
e2b76ab8 NJ |
6399 | rc = ksmbd_iov_pin_rsp(work, (void *)rsp, |
6400 | sizeof(struct smb2_set_info_rsp)); | |
6401 | if (rc) | |
6402 | goto err_out; | |
e2f34481 NJ |
6403 | ksmbd_fd_put(work, fp); |
6404 | return 0; | |
6405 | ||
6406 | err_out: | |
265fd199 | 6407 | if (rc == -EACCES || rc == -EPERM || rc == -EXDEV) |
e2f34481 NJ |
6408 | rsp->hdr.Status = STATUS_ACCESS_DENIED; |
6409 | else if (rc == -EINVAL) | |
6410 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; | |
6411 | else if (rc == -ESHARE) | |
6412 | rsp->hdr.Status = STATUS_SHARING_VIOLATION; | |
6413 | else if (rc == -ENOENT) | |
6414 | rsp->hdr.Status = STATUS_OBJECT_NAME_INVALID; | |
6415 | else if (rc == -EBUSY || rc == -ENOTEMPTY) | |
6416 | rsp->hdr.Status = STATUS_DIRECTORY_NOT_EMPTY; | |
6417 | else if (rc == -EAGAIN) | |
6418 | rsp->hdr.Status = STATUS_FILE_LOCK_CONFLICT; | |
ff1d5727 | 6419 | else if (rc == -EBADF || rc == -ESTALE) |
e2f34481 NJ |
6420 | rsp->hdr.Status = STATUS_INVALID_HANDLE; |
6421 | else if (rc == -EEXIST) | |
6422 | rsp->hdr.Status = STATUS_OBJECT_NAME_COLLISION; | |
6423 | else if (rsp->hdr.Status == 0 || rc == -EOPNOTSUPP) | |
6424 | rsp->hdr.Status = STATUS_INVALID_INFO_CLASS; | |
6425 | smb2_set_err_rsp(work); | |
6426 | ksmbd_fd_put(work, fp); | |
070fb21e | 6427 | ksmbd_debug(SMB, "error while processing smb2 query rc = %d\n", rc); |
e2f34481 NJ |
6428 | return rc; |
6429 | } | |
6430 | ||
6431 | /** | |
6432 | * smb2_read_pipe() - handler for smb2 read from IPC pipe | |
6433 | * @work: smb work containing read IPC pipe command buffer | |
6434 | * | |
6435 | * Return: 0 on success, otherwise error | |
6436 | */ | |
6437 | static noinline int smb2_read_pipe(struct ksmbd_work *work) | |
6438 | { | |
6439 | int nbytes = 0, err; | |
64b39f4a | 6440 | u64 id; |
e2f34481 | 6441 | struct ksmbd_rpc_command *rpc_resp; |
7b7d709e NJ |
6442 | struct smb2_read_req *req; |
6443 | struct smb2_read_rsp *rsp; | |
6444 | ||
6445 | WORK_BUFFERS(work, req, rsp); | |
e2f34481 | 6446 | |
2d004c6c | 6447 | id = req->VolatileFileId; |
e2f34481 | 6448 | |
e2f34481 NJ |
6449 | rpc_resp = ksmbd_rpc_read(work->sess, id); |
6450 | if (rpc_resp) { | |
e2b76ab8 NJ |
6451 | void *aux_payload_buf; |
6452 | ||
e2f34481 NJ |
6453 | if (rpc_resp->flags != KSMBD_RPC_OK) { |
6454 | err = -EINVAL; | |
6455 | goto out; | |
6456 | } | |
6457 | ||
e2b76ab8 | 6458 | aux_payload_buf = |
81a94b27 | 6459 | kvmalloc(rpc_resp->payload_sz, GFP_KERNEL); |
e2b76ab8 | 6460 | if (!aux_payload_buf) { |
e2f34481 NJ |
6461 | err = -ENOMEM; |
6462 | goto out; | |
6463 | } | |
6464 | ||
e2b76ab8 | 6465 | memcpy(aux_payload_buf, rpc_resp->payload, rpc_resp->payload_sz); |
e2f34481 NJ |
6466 | |
6467 | nbytes = rpc_resp->payload_sz; | |
e2b76ab8 NJ |
6468 | err = ksmbd_iov_pin_rsp_read(work, (void *)rsp, |
6469 | offsetof(struct smb2_read_rsp, Buffer), | |
6470 | aux_payload_buf, nbytes); | |
108a020c FP |
6471 | if (err) { |
6472 | kvfree(aux_payload_buf); | |
e2b76ab8 | 6473 | goto out; |
108a020c | 6474 | } |
1903e6d0 | 6475 | kvfree(rpc_resp); |
e2b76ab8 NJ |
6476 | } else { |
6477 | err = ksmbd_iov_pin_rsp(work, (void *)rsp, | |
6478 | offsetof(struct smb2_read_rsp, Buffer)); | |
6479 | if (err) | |
6480 | goto out; | |
e2f34481 NJ |
6481 | } |
6482 | ||
6483 | rsp->StructureSize = cpu_to_le16(17); | |
6484 | rsp->DataOffset = 80; | |
6485 | rsp->Reserved = 0; | |
6486 | rsp->DataLength = cpu_to_le32(nbytes); | |
6487 | rsp->DataRemaining = 0; | |
699230f3 | 6488 | rsp->Flags = 0; |
e2f34481 NJ |
6489 | return 0; |
6490 | ||
6491 | out: | |
6492 | rsp->hdr.Status = STATUS_UNEXPECTED_IO_ERROR; | |
6493 | smb2_set_err_rsp(work); | |
79f6b11a | 6494 | kvfree(rpc_resp); |
e2f34481 NJ |
6495 | return err; |
6496 | } | |
6497 | ||
2fd5dcb1 HL |
6498 | static int smb2_set_remote_key_for_rdma(struct ksmbd_work *work, |
6499 | struct smb2_buffer_desc_v1 *desc, | |
6500 | __le32 Channel, | |
2fd5dcb1 | 6501 | __le16 ChannelInfoLength) |
e2f34481 | 6502 | { |
6d896d3b HL |
6503 | unsigned int i, ch_count; |
6504 | ||
64b39f4a | 6505 | if (work->conn->dialect == SMB30_PROT_ID && |
2fd5dcb1 | 6506 | Channel != SMB2_CHANNEL_RDMA_V1) |
e2f34481 NJ |
6507 | return -EINVAL; |
6508 | ||
6d896d3b HL |
6509 | ch_count = le16_to_cpu(ChannelInfoLength) / sizeof(*desc); |
6510 | if (ksmbd_debug_types & KSMBD_DEBUG_RDMA) { | |
6511 | for (i = 0; i < ch_count; i++) { | |
6512 | pr_info("RDMA r/w request %#x: token %#x, length %#x\n", | |
6513 | i, | |
6514 | le32_to_cpu(desc[i].token), | |
6515 | le32_to_cpu(desc[i].length)); | |
6516 | } | |
6517 | } | |
ee1b0558 | 6518 | if (!ch_count) |
e2f34481 NJ |
6519 | return -EINVAL; |
6520 | ||
6521 | work->need_invalidate_rkey = | |
2fd5dcb1 | 6522 | (Channel == SMB2_CHANNEL_RDMA_V1_INVALIDATE); |
1807abcf HL |
6523 | if (Channel == SMB2_CHANNEL_RDMA_V1_INVALIDATE) |
6524 | work->remote_key = le32_to_cpu(desc->token); | |
2fd5dcb1 HL |
6525 | return 0; |
6526 | } | |
6527 | ||
6528 | static ssize_t smb2_read_rdma_channel(struct ksmbd_work *work, | |
6529 | struct smb2_read_req *req, void *data_buf, | |
6530 | size_t length) | |
6531 | { | |
2fd5dcb1 | 6532 | int err; |
e2f34481 | 6533 | |
64b39f4a | 6534 | err = ksmbd_conn_rdma_write(work->conn, data_buf, length, |
1807abcf HL |
6535 | (struct smb2_buffer_desc_v1 *) |
6536 | ((char *)req + le16_to_cpu(req->ReadChannelInfoOffset)), | |
6537 | le16_to_cpu(req->ReadChannelInfoLength)); | |
e2f34481 NJ |
6538 | if (err) |
6539 | return err; | |
6540 | ||
6541 | return length; | |
6542 | } | |
6543 | ||
6544 | /** | |
6545 | * smb2_read() - handler for smb2 read from file | |
6546 | * @work: smb work containing read command buffer | |
6547 | * | |
6548 | * Return: 0 on success, otherwise error | |
6549 | */ | |
6550 | int smb2_read(struct ksmbd_work *work) | |
6551 | { | |
6552 | struct ksmbd_conn *conn = work->conn; | |
6553 | struct smb2_read_req *req; | |
cb451720 | 6554 | struct smb2_read_rsp *rsp; |
2fd5dcb1 | 6555 | struct ksmbd_file *fp = NULL; |
e2f34481 NJ |
6556 | loff_t offset; |
6557 | size_t length, mincount; | |
6558 | ssize_t nbytes = 0, remain_bytes = 0; | |
6559 | int err = 0; | |
7a84399e NJ |
6560 | bool is_rdma_channel = false; |
6561 | unsigned int max_read_size = conn->vals->max_read_size; | |
e2b76ab8 NJ |
6562 | unsigned int id = KSMBD_NO_FID, pid = KSMBD_NO_FID; |
6563 | void *aux_payload_buf; | |
e2f34481 NJ |
6564 | |
6565 | if (test_share_config_flag(work->tcon->share_conf, | |
6566 | KSMBD_SHARE_FLAG_PIPE)) { | |
6567 | ksmbd_debug(SMB, "IPC pipe read request\n"); | |
6568 | return smb2_read_pipe(work); | |
6569 | } | |
6570 | ||
e2b76ab8 NJ |
6571 | if (work->next_smb2_rcv_hdr_off) { |
6572 | req = ksmbd_req_buf_next(work); | |
6573 | rsp = ksmbd_resp_buf_next(work); | |
6574 | if (!has_file_id(req->VolatileFileId)) { | |
6575 | ksmbd_debug(SMB, "Compound request set FID = %llu\n", | |
6576 | work->compound_fid); | |
6577 | id = work->compound_fid; | |
6578 | pid = work->compound_pfid; | |
6579 | } | |
6580 | } else { | |
6581 | req = smb2_get_msg(work->request_buf); | |
6582 | rsp = smb2_get_msg(work->response_buf); | |
6583 | } | |
6584 | ||
6585 | if (!has_file_id(id)) { | |
6586 | id = req->VolatileFileId; | |
6587 | pid = req->PersistentFileId; | |
6588 | } | |
6589 | ||
2fd5dcb1 HL |
6590 | if (req->Channel == SMB2_CHANNEL_RDMA_V1_INVALIDATE || |
6591 | req->Channel == SMB2_CHANNEL_RDMA_V1) { | |
7a84399e NJ |
6592 | is_rdma_channel = true; |
6593 | max_read_size = get_smbd_max_read_write_size(); | |
6594 | } | |
6595 | ||
6596 | if (is_rdma_channel == true) { | |
6d896d3b HL |
6597 | unsigned int ch_offset = le16_to_cpu(req->ReadChannelInfoOffset); |
6598 | ||
6599 | if (ch_offset < offsetof(struct smb2_read_req, Buffer)) { | |
6600 | err = -EINVAL; | |
6601 | goto out; | |
6602 | } | |
2fd5dcb1 HL |
6603 | err = smb2_set_remote_key_for_rdma(work, |
6604 | (struct smb2_buffer_desc_v1 *) | |
6d896d3b | 6605 | ((char *)req + ch_offset), |
2fd5dcb1 | 6606 | req->Channel, |
2fd5dcb1 HL |
6607 | req->ReadChannelInfoLength); |
6608 | if (err) | |
6609 | goto out; | |
6610 | } | |
6611 | ||
e2b76ab8 | 6612 | fp = ksmbd_lookup_fd_slow(work, id, pid); |
e2f34481 | 6613 | if (!fp) { |
a4382db9 MM |
6614 | err = -ENOENT; |
6615 | goto out; | |
e2f34481 NJ |
6616 | } |
6617 | ||
6618 | if (!(fp->daccess & (FILE_READ_DATA_LE | FILE_READ_ATTRIBUTES_LE))) { | |
bde1694a | 6619 | pr_err("Not permitted to read : 0x%x\n", fp->daccess); |
e2f34481 NJ |
6620 | err = -EACCES; |
6621 | goto out; | |
6622 | } | |
6623 | ||
6624 | offset = le64_to_cpu(req->Offset); | |
6625 | length = le32_to_cpu(req->Length); | |
6626 | mincount = le32_to_cpu(req->MinimumCount); | |
6627 | ||
7a84399e | 6628 | if (length > max_read_size) { |
e2f34481 | 6629 | ksmbd_debug(SMB, "limiting read size to max size(%u)\n", |
7a84399e | 6630 | max_read_size); |
e2f34481 NJ |
6631 | err = -EINVAL; |
6632 | goto out; | |
6633 | } | |
6634 | ||
369c1634 AV |
6635 | ksmbd_debug(SMB, "filename %pD, offset %lld, len %zu\n", |
6636 | fp->filp, offset, length); | |
e2f34481 | 6637 | |
e2b76ab8 NJ |
6638 | aux_payload_buf = kvzalloc(length, GFP_KERNEL); |
6639 | if (!aux_payload_buf) { | |
c1ea111f | 6640 | err = -ENOMEM; |
e2f34481 NJ |
6641 | goto out; |
6642 | } | |
6643 | ||
e2b76ab8 | 6644 | nbytes = ksmbd_vfs_read(work, fp, length, &offset, aux_payload_buf); |
e2f34481 NJ |
6645 | if (nbytes < 0) { |
6646 | err = nbytes; | |
6647 | goto out; | |
6648 | } | |
6649 | ||
6650 | if ((nbytes == 0 && length != 0) || nbytes < mincount) { | |
e2b76ab8 | 6651 | kvfree(aux_payload_buf); |
e2f34481 NJ |
6652 | rsp->hdr.Status = STATUS_END_OF_FILE; |
6653 | smb2_set_err_rsp(work); | |
6654 | ksmbd_fd_put(work, fp); | |
6655 | return 0; | |
6656 | } | |
6657 | ||
6658 | ksmbd_debug(SMB, "nbytes %zu, offset %lld mincount %zu\n", | |
070fb21e | 6659 | nbytes, offset, mincount); |
e2f34481 | 6660 | |
7a84399e | 6661 | if (is_rdma_channel == true) { |
e2f34481 NJ |
6662 | /* write data to the client using rdma channel */ |
6663 | remain_bytes = smb2_read_rdma_channel(work, req, | |
e2b76ab8 | 6664 | aux_payload_buf, |
070fb21e | 6665 | nbytes); |
e2b76ab8 | 6666 | kvfree(aux_payload_buf); |
59d8d24f | 6667 | aux_payload_buf = NULL; |
e2f34481 NJ |
6668 | nbytes = 0; |
6669 | if (remain_bytes < 0) { | |
6670 | err = (int)remain_bytes; | |
6671 | goto out; | |
6672 | } | |
6673 | } | |
6674 | ||
6675 | rsp->StructureSize = cpu_to_le16(17); | |
6676 | rsp->DataOffset = 80; | |
6677 | rsp->Reserved = 0; | |
6678 | rsp->DataLength = cpu_to_le32(nbytes); | |
6679 | rsp->DataRemaining = cpu_to_le32(remain_bytes); | |
699230f3 | 6680 | rsp->Flags = 0; |
e2b76ab8 NJ |
6681 | err = ksmbd_iov_pin_rsp_read(work, (void *)rsp, |
6682 | offsetof(struct smb2_read_rsp, Buffer), | |
6683 | aux_payload_buf, nbytes); | |
108a020c FP |
6684 | if (err) { |
6685 | kvfree(aux_payload_buf); | |
e2b76ab8 | 6686 | goto out; |
108a020c | 6687 | } |
e2f34481 NJ |
6688 | ksmbd_fd_put(work, fp); |
6689 | return 0; | |
6690 | ||
6691 | out: | |
6692 | if (err) { | |
6693 | if (err == -EISDIR) | |
6694 | rsp->hdr.Status = STATUS_INVALID_DEVICE_REQUEST; | |
6695 | else if (err == -EAGAIN) | |
6696 | rsp->hdr.Status = STATUS_FILE_LOCK_CONFLICT; | |
6697 | else if (err == -ENOENT) | |
6698 | rsp->hdr.Status = STATUS_FILE_CLOSED; | |
6699 | else if (err == -EACCES) | |
6700 | rsp->hdr.Status = STATUS_ACCESS_DENIED; | |
6701 | else if (err == -ESHARE) | |
6702 | rsp->hdr.Status = STATUS_SHARING_VIOLATION; | |
6703 | else if (err == -EINVAL) | |
6704 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; | |
6705 | else | |
6706 | rsp->hdr.Status = STATUS_INVALID_HANDLE; | |
6707 | ||
6708 | smb2_set_err_rsp(work); | |
6709 | } | |
6710 | ksmbd_fd_put(work, fp); | |
6711 | return err; | |
6712 | } | |
6713 | ||
6714 | /** | |
6715 | * smb2_write_pipe() - handler for smb2 write on IPC pipe | |
6716 | * @work: smb work containing write IPC pipe command buffer | |
6717 | * | |
6718 | * Return: 0 on success, otherwise error | |
6719 | */ | |
6720 | static noinline int smb2_write_pipe(struct ksmbd_work *work) | |
6721 | { | |
7b7d709e NJ |
6722 | struct smb2_write_req *req; |
6723 | struct smb2_write_rsp *rsp; | |
e2f34481 | 6724 | struct ksmbd_rpc_command *rpc_resp; |
64b39f4a | 6725 | u64 id = 0; |
e2f34481 NJ |
6726 | int err = 0, ret = 0; |
6727 | char *data_buf; | |
6728 | size_t length; | |
6729 | ||
7b7d709e NJ |
6730 | WORK_BUFFERS(work, req, rsp); |
6731 | ||
e2f34481 | 6732 | length = le32_to_cpu(req->Length); |
2d004c6c | 6733 | id = req->VolatileFileId; |
e2f34481 | 6734 | |
158a66b2 MM |
6735 | if ((u64)le16_to_cpu(req->DataOffset) + length > |
6736 | get_rfc1002_len(work->request_buf)) { | |
6737 | pr_err("invalid write data offset %u, smb_len %u\n", | |
6738 | le16_to_cpu(req->DataOffset), | |
6739 | get_rfc1002_len(work->request_buf)); | |
6740 | err = -EINVAL; | |
6741 | goto out; | |
e2f34481 NJ |
6742 | } |
6743 | ||
158a66b2 MM |
6744 | data_buf = (char *)(((char *)&req->hdr.ProtocolId) + |
6745 | le16_to_cpu(req->DataOffset)); | |
6746 | ||
e2f34481 NJ |
6747 | rpc_resp = ksmbd_rpc_write(work->sess, id, data_buf, length); |
6748 | if (rpc_resp) { | |
6749 | if (rpc_resp->flags == KSMBD_RPC_ENOTIMPLEMENTED) { | |
6750 | rsp->hdr.Status = STATUS_NOT_SUPPORTED; | |
79f6b11a | 6751 | kvfree(rpc_resp); |
e2f34481 NJ |
6752 | smb2_set_err_rsp(work); |
6753 | return -EOPNOTSUPP; | |
6754 | } | |
6755 | if (rpc_resp->flags != KSMBD_RPC_OK) { | |
6756 | rsp->hdr.Status = STATUS_INVALID_HANDLE; | |
6757 | smb2_set_err_rsp(work); | |
79f6b11a | 6758 | kvfree(rpc_resp); |
e2f34481 NJ |
6759 | return ret; |
6760 | } | |
79f6b11a | 6761 | kvfree(rpc_resp); |
e2f34481 NJ |
6762 | } |
6763 | ||
6764 | rsp->StructureSize = cpu_to_le16(17); | |
6765 | rsp->DataOffset = 0; | |
6766 | rsp->Reserved = 0; | |
6767 | rsp->DataLength = cpu_to_le32(length); | |
6768 | rsp->DataRemaining = 0; | |
6769 | rsp->Reserved2 = 0; | |
e2b76ab8 NJ |
6770 | err = ksmbd_iov_pin_rsp(work, (void *)rsp, |
6771 | offsetof(struct smb2_write_rsp, Buffer)); | |
e2f34481 NJ |
6772 | out: |
6773 | if (err) { | |
6774 | rsp->hdr.Status = STATUS_INVALID_HANDLE; | |
6775 | smb2_set_err_rsp(work); | |
6776 | } | |
6777 | ||
6778 | return err; | |
6779 | } | |
6780 | ||
6781 | static ssize_t smb2_write_rdma_channel(struct ksmbd_work *work, | |
070fb21e NJ |
6782 | struct smb2_write_req *req, |
6783 | struct ksmbd_file *fp, | |
6784 | loff_t offset, size_t length, bool sync) | |
e2f34481 | 6785 | { |
e2f34481 NJ |
6786 | char *data_buf; |
6787 | int ret; | |
6788 | ssize_t nbytes; | |
6789 | ||
81a94b27 | 6790 | data_buf = kvzalloc(length, GFP_KERNEL); |
e2f34481 NJ |
6791 | if (!data_buf) |
6792 | return -ENOMEM; | |
6793 | ||
6794 | ret = ksmbd_conn_rdma_read(work->conn, data_buf, length, | |
1807abcf HL |
6795 | (struct smb2_buffer_desc_v1 *) |
6796 | ((char *)req + le16_to_cpu(req->WriteChannelInfoOffset)), | |
6797 | le16_to_cpu(req->WriteChannelInfoLength)); | |
e2f34481 | 6798 | if (ret < 0) { |
79f6b11a | 6799 | kvfree(data_buf); |
e2f34481 NJ |
6800 | return ret; |
6801 | } | |
6802 | ||
64b39f4a | 6803 | ret = ksmbd_vfs_write(work, fp, data_buf, length, &offset, sync, &nbytes); |
79f6b11a | 6804 | kvfree(data_buf); |
e2f34481 NJ |
6805 | if (ret < 0) |
6806 | return ret; | |
6807 | ||
6808 | return nbytes; | |
6809 | } | |
6810 | ||
6811 | /** | |
6812 | * smb2_write() - handler for smb2 write from file | |
6813 | * @work: smb work containing write command buffer | |
6814 | * | |
6815 | * Return: 0 on success, otherwise error | |
6816 | */ | |
6817 | int smb2_write(struct ksmbd_work *work) | |
6818 | { | |
6819 | struct smb2_write_req *req; | |
cb451720 | 6820 | struct smb2_write_rsp *rsp; |
bcd62a36 | 6821 | struct ksmbd_file *fp = NULL; |
e2f34481 NJ |
6822 | loff_t offset; |
6823 | size_t length; | |
6824 | ssize_t nbytes; | |
6825 | char *data_buf; | |
7a84399e | 6826 | bool writethrough = false, is_rdma_channel = false; |
e2f34481 | 6827 | int err = 0; |
7a84399e | 6828 | unsigned int max_write_size = work->conn->vals->max_write_size; |
e2f34481 | 6829 | |
e2f34481 NJ |
6830 | WORK_BUFFERS(work, req, rsp); |
6831 | ||
64b39f4a | 6832 | if (test_share_config_flag(work->tcon->share_conf, KSMBD_SHARE_FLAG_PIPE)) { |
e2f34481 NJ |
6833 | ksmbd_debug(SMB, "IPC pipe write request\n"); |
6834 | return smb2_write_pipe(work); | |
6835 | } | |
6836 | ||
7a84399e NJ |
6837 | offset = le64_to_cpu(req->Offset); |
6838 | length = le32_to_cpu(req->Length); | |
6839 | ||
2fd5dcb1 HL |
6840 | if (req->Channel == SMB2_CHANNEL_RDMA_V1 || |
6841 | req->Channel == SMB2_CHANNEL_RDMA_V1_INVALIDATE) { | |
7a84399e NJ |
6842 | is_rdma_channel = true; |
6843 | max_write_size = get_smbd_max_read_write_size(); | |
6844 | length = le32_to_cpu(req->RemainingBytes); | |
6845 | } | |
6846 | ||
6847 | if (is_rdma_channel == true) { | |
6d896d3b HL |
6848 | unsigned int ch_offset = le16_to_cpu(req->WriteChannelInfoOffset); |
6849 | ||
6850 | if (req->Length != 0 || req->DataOffset != 0 || | |
6851 | ch_offset < offsetof(struct smb2_write_req, Buffer)) { | |
6852 | err = -EINVAL; | |
6853 | goto out; | |
6854 | } | |
2fd5dcb1 HL |
6855 | err = smb2_set_remote_key_for_rdma(work, |
6856 | (struct smb2_buffer_desc_v1 *) | |
6d896d3b | 6857 | ((char *)req + ch_offset), |
2fd5dcb1 | 6858 | req->Channel, |
2fd5dcb1 HL |
6859 | req->WriteChannelInfoLength); |
6860 | if (err) | |
6861 | goto out; | |
6862 | } | |
6863 | ||
e2f34481 NJ |
6864 | if (!test_tree_conn_flag(work->tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) { |
6865 | ksmbd_debug(SMB, "User does not have write permission\n"); | |
6866 | err = -EACCES; | |
6867 | goto out; | |
6868 | } | |
6869 | ||
2d004c6c | 6870 | fp = ksmbd_lookup_fd_slow(work, req->VolatileFileId, req->PersistentFileId); |
e2f34481 | 6871 | if (!fp) { |
a4382db9 MM |
6872 | err = -ENOENT; |
6873 | goto out; | |
e2f34481 NJ |
6874 | } |
6875 | ||
6876 | if (!(fp->daccess & (FILE_WRITE_DATA_LE | FILE_READ_ATTRIBUTES_LE))) { | |
bde1694a | 6877 | pr_err("Not permitted to write : 0x%x\n", fp->daccess); |
e2f34481 NJ |
6878 | err = -EACCES; |
6879 | goto out; | |
6880 | } | |
6881 | ||
7a84399e | 6882 | if (length > max_write_size) { |
e2f34481 | 6883 | ksmbd_debug(SMB, "limiting write size to max size(%u)\n", |
7a84399e | 6884 | max_write_size); |
e2f34481 NJ |
6885 | err = -EINVAL; |
6886 | goto out; | |
6887 | } | |
6888 | ||
745bbc09 | 6889 | ksmbd_debug(SMB, "flags %u\n", le32_to_cpu(req->Flags)); |
e2f34481 NJ |
6890 | if (le32_to_cpu(req->Flags) & SMB2_WRITEFLAG_WRITE_THROUGH) |
6891 | writethrough = true; | |
6892 | ||
7a84399e | 6893 | if (is_rdma_channel == false) { |
ac60778b HL |
6894 | if (le16_to_cpu(req->DataOffset) < |
6895 | offsetof(struct smb2_write_req, Buffer)) { | |
158a66b2 MM |
6896 | err = -EINVAL; |
6897 | goto out; | |
e2f34481 | 6898 | } |
ac60778b | 6899 | |
158a66b2 MM |
6900 | data_buf = (char *)(((char *)&req->hdr.ProtocolId) + |
6901 | le16_to_cpu(req->DataOffset)); | |
e2f34481 | 6902 | |
369c1634 AV |
6903 | ksmbd_debug(SMB, "filename %pD, offset %lld, len %zu\n", |
6904 | fp->filp, offset, length); | |
e2f34481 NJ |
6905 | err = ksmbd_vfs_write(work, fp, data_buf, length, &offset, |
6906 | writethrough, &nbytes); | |
6907 | if (err < 0) | |
6908 | goto out; | |
6909 | } else { | |
6910 | /* read data from the client using rdma channel, and | |
6911 | * write the data. | |
6912 | */ | |
7a84399e | 6913 | nbytes = smb2_write_rdma_channel(work, req, fp, offset, length, |
070fb21e | 6914 | writethrough); |
e2f34481 NJ |
6915 | if (nbytes < 0) { |
6916 | err = (int)nbytes; | |
6917 | goto out; | |
6918 | } | |
6919 | } | |
6920 | ||
6921 | rsp->StructureSize = cpu_to_le16(17); | |
6922 | rsp->DataOffset = 0; | |
6923 | rsp->Reserved = 0; | |
6924 | rsp->DataLength = cpu_to_le32(nbytes); | |
6925 | rsp->DataRemaining = 0; | |
6926 | rsp->Reserved2 = 0; | |
e2b76ab8 NJ |
6927 | err = ksmbd_iov_pin_rsp(work, rsp, offsetof(struct smb2_write_rsp, Buffer)); |
6928 | if (err) | |
6929 | goto out; | |
e2f34481 NJ |
6930 | ksmbd_fd_put(work, fp); |
6931 | return 0; | |
6932 | ||
6933 | out: | |
6934 | if (err == -EAGAIN) | |
6935 | rsp->hdr.Status = STATUS_FILE_LOCK_CONFLICT; | |
6936 | else if (err == -ENOSPC || err == -EFBIG) | |
6937 | rsp->hdr.Status = STATUS_DISK_FULL; | |
6938 | else if (err == -ENOENT) | |
6939 | rsp->hdr.Status = STATUS_FILE_CLOSED; | |
6940 | else if (err == -EACCES) | |
6941 | rsp->hdr.Status = STATUS_ACCESS_DENIED; | |
6942 | else if (err == -ESHARE) | |
6943 | rsp->hdr.Status = STATUS_SHARING_VIOLATION; | |
6944 | else if (err == -EINVAL) | |
6945 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; | |
6946 | else | |
6947 | rsp->hdr.Status = STATUS_INVALID_HANDLE; | |
6948 | ||
6949 | smb2_set_err_rsp(work); | |
6950 | ksmbd_fd_put(work, fp); | |
6951 | return err; | |
6952 | } | |
6953 | ||
6954 | /** | |
6955 | * smb2_flush() - handler for smb2 flush file - fsync | |
6956 | * @work: smb work containing flush command buffer | |
6957 | * | |
6958 | * Return: 0 on success, otherwise error | |
6959 | */ | |
6960 | int smb2_flush(struct ksmbd_work *work) | |
6961 | { | |
6962 | struct smb2_flush_req *req; | |
cb451720 | 6963 | struct smb2_flush_rsp *rsp; |
e2f34481 NJ |
6964 | int err; |
6965 | ||
e2f34481 NJ |
6966 | WORK_BUFFERS(work, req, rsp); |
6967 | ||
2d004c6c | 6968 | ksmbd_debug(SMB, "SMB2_FLUSH called for fid %llu\n", req->VolatileFileId); |
e2f34481 | 6969 | |
2d004c6c | 6970 | err = ksmbd_vfs_fsync(work, req->VolatileFileId, req->PersistentFileId); |
e2f34481 NJ |
6971 | if (err) |
6972 | goto out; | |
6973 | ||
6974 | rsp->StructureSize = cpu_to_le16(4); | |
6975 | rsp->Reserved = 0; | |
e2b76ab8 | 6976 | return ksmbd_iov_pin_rsp(work, rsp, sizeof(struct smb2_flush_rsp)); |
e2f34481 NJ |
6977 | |
6978 | out: | |
e2b76ab8 NJ |
6979 | rsp->hdr.Status = STATUS_INVALID_HANDLE; |
6980 | smb2_set_err_rsp(work); | |
e2f34481 NJ |
6981 | return err; |
6982 | } | |
6983 | ||
6984 | /** | |
6985 | * smb2_cancel() - handler for smb2 cancel command | |
6986 | * @work: smb work containing cancel command buffer | |
6987 | * | |
6988 | * Return: 0 on success, otherwise error | |
6989 | */ | |
6990 | int smb2_cancel(struct ksmbd_work *work) | |
6991 | { | |
6992 | struct ksmbd_conn *conn = work->conn; | |
cb451720 | 6993 | struct smb2_hdr *hdr = smb2_get_msg(work->request_buf); |
e2f34481 | 6994 | struct smb2_hdr *chdr; |
d3ca9f7a | 6995 | struct ksmbd_work *iter; |
e2f34481 NJ |
6996 | struct list_head *command_list; |
6997 | ||
7b7d709e NJ |
6998 | if (work->next_smb2_rcv_hdr_off) |
6999 | hdr = ksmbd_resp_buf_next(work); | |
7000 | ||
e2f34481 | 7001 | ksmbd_debug(SMB, "smb2 cancel called on mid %llu, async flags 0x%x\n", |
070fb21e | 7002 | hdr->MessageId, hdr->Flags); |
e2f34481 NJ |
7003 | |
7004 | if (hdr->Flags & SMB2_FLAGS_ASYNC_COMMAND) { | |
7005 | command_list = &conn->async_requests; | |
7006 | ||
7007 | spin_lock(&conn->request_lock); | |
edf5f054 | 7008 | list_for_each_entry(iter, command_list, |
6f3d5eee | 7009 | async_request_entry) { |
edf5f054 | 7010 | chdr = smb2_get_msg(iter->request_buf); |
e2f34481 | 7011 | |
edf5f054 | 7012 | if (iter->async_id != |
64b39f4a | 7013 | le64_to_cpu(hdr->Id.AsyncId)) |
e2f34481 NJ |
7014 | continue; |
7015 | ||
7016 | ksmbd_debug(SMB, | |
070fb21e NJ |
7017 | "smb2 with AsyncId %llu cancelled command = 0x%x\n", |
7018 | le64_to_cpu(hdr->Id.AsyncId), | |
7019 | le16_to_cpu(chdr->Command)); | |
d3ca9f7a HH |
7020 | iter->state = KSMBD_WORK_CANCELLED; |
7021 | if (iter->cancel_fn) | |
7022 | iter->cancel_fn(iter->cancel_argv); | |
e2f34481 NJ |
7023 | break; |
7024 | } | |
7025 | spin_unlock(&conn->request_lock); | |
7026 | } else { | |
7027 | command_list = &conn->requests; | |
7028 | ||
7029 | spin_lock(&conn->request_lock); | |
edf5f054 JK |
7030 | list_for_each_entry(iter, command_list, request_entry) { |
7031 | chdr = smb2_get_msg(iter->request_buf); | |
e2f34481 NJ |
7032 | |
7033 | if (chdr->MessageId != hdr->MessageId || | |
edf5f054 | 7034 | iter == work) |
e2f34481 NJ |
7035 | continue; |
7036 | ||
7037 | ksmbd_debug(SMB, | |
070fb21e NJ |
7038 | "smb2 with mid %llu cancelled command = 0x%x\n", |
7039 | le64_to_cpu(hdr->MessageId), | |
7040 | le16_to_cpu(chdr->Command)); | |
d3ca9f7a | 7041 | iter->state = KSMBD_WORK_CANCELLED; |
e2f34481 NJ |
7042 | break; |
7043 | } | |
7044 | spin_unlock(&conn->request_lock); | |
7045 | } | |
7046 | ||
e2f34481 NJ |
7047 | /* For SMB2_CANCEL command itself send no response*/ |
7048 | work->send_no_response = 1; | |
7049 | return 0; | |
7050 | } | |
7051 | ||
7052 | struct file_lock *smb_flock_init(struct file *f) | |
7053 | { | |
7054 | struct file_lock *fl; | |
7055 | ||
7056 | fl = locks_alloc_lock(); | |
7057 | if (!fl) | |
7058 | goto out; | |
7059 | ||
7060 | locks_init_lock(fl); | |
7061 | ||
16f9ce81 JL |
7062 | fl->c.flc_owner = f; |
7063 | fl->c.flc_pid = current->tgid; | |
7064 | fl->c.flc_file = f; | |
7065 | fl->c.flc_flags = FL_POSIX; | |
e2f34481 NJ |
7066 | fl->fl_ops = NULL; |
7067 | fl->fl_lmops = NULL; | |
7068 | ||
7069 | out: | |
7070 | return fl; | |
7071 | } | |
7072 | ||
7073 | static int smb2_set_flock_flags(struct file_lock *flock, int flags) | |
7074 | { | |
7075 | int cmd = -EINVAL; | |
7076 | ||
7077 | /* Checking for wrong flag combination during lock request*/ | |
7078 | switch (flags) { | |
7079 | case SMB2_LOCKFLAG_SHARED: | |
7080 | ksmbd_debug(SMB, "received shared request\n"); | |
7081 | cmd = F_SETLKW; | |
16f9ce81 JL |
7082 | flock->c.flc_type = F_RDLCK; |
7083 | flock->c.flc_flags |= FL_SLEEP; | |
e2f34481 NJ |
7084 | break; |
7085 | case SMB2_LOCKFLAG_EXCLUSIVE: | |
7086 | ksmbd_debug(SMB, "received exclusive request\n"); | |
7087 | cmd = F_SETLKW; | |
16f9ce81 JL |
7088 | flock->c.flc_type = F_WRLCK; |
7089 | flock->c.flc_flags |= FL_SLEEP; | |
e2f34481 | 7090 | break; |
64b39f4a | 7091 | case SMB2_LOCKFLAG_SHARED | SMB2_LOCKFLAG_FAIL_IMMEDIATELY: |
e2f34481 | 7092 | ksmbd_debug(SMB, |
070fb21e | 7093 | "received shared & fail immediately request\n"); |
e2f34481 | 7094 | cmd = F_SETLK; |
16f9ce81 | 7095 | flock->c.flc_type = F_RDLCK; |
e2f34481 | 7096 | break; |
64b39f4a | 7097 | case SMB2_LOCKFLAG_EXCLUSIVE | SMB2_LOCKFLAG_FAIL_IMMEDIATELY: |
e2f34481 | 7098 | ksmbd_debug(SMB, |
070fb21e | 7099 | "received exclusive & fail immediately request\n"); |
e2f34481 | 7100 | cmd = F_SETLK; |
16f9ce81 | 7101 | flock->c.flc_type = F_WRLCK; |
e2f34481 NJ |
7102 | break; |
7103 | case SMB2_LOCKFLAG_UNLOCK: | |
7104 | ksmbd_debug(SMB, "received unlock request\n"); | |
16f9ce81 | 7105 | flock->c.flc_type = F_UNLCK; |
7ecbe926 | 7106 | cmd = F_SETLK; |
e2f34481 NJ |
7107 | break; |
7108 | } | |
7109 | ||
7110 | return cmd; | |
7111 | } | |
7112 | ||
7113 | static struct ksmbd_lock *smb2_lock_init(struct file_lock *flock, | |
070fb21e NJ |
7114 | unsigned int cmd, int flags, |
7115 | struct list_head *lock_list) | |
e2f34481 NJ |
7116 | { |
7117 | struct ksmbd_lock *lock; | |
7118 | ||
7119 | lock = kzalloc(sizeof(struct ksmbd_lock), GFP_KERNEL); | |
7120 | if (!lock) | |
7121 | return NULL; | |
7122 | ||
7123 | lock->cmd = cmd; | |
7124 | lock->fl = flock; | |
7125 | lock->start = flock->fl_start; | |
7126 | lock->end = flock->fl_end; | |
7127 | lock->flags = flags; | |
7128 | if (lock->start == lock->end) | |
7129 | lock->zero_len = 1; | |
d63528eb HL |
7130 | INIT_LIST_HEAD(&lock->clist); |
7131 | INIT_LIST_HEAD(&lock->flist); | |
e2f34481 | 7132 | INIT_LIST_HEAD(&lock->llist); |
e2f34481 NJ |
7133 | list_add_tail(&lock->llist, lock_list); |
7134 | ||
7135 | return lock; | |
7136 | } | |
7137 | ||
7138 | static void smb2_remove_blocked_lock(void **argv) | |
7139 | { | |
7140 | struct file_lock *flock = (struct file_lock *)argv[0]; | |
7141 | ||
7142 | ksmbd_vfs_posix_lock_unblock(flock); | |
6a277077 | 7143 | locks_wake_up(flock); |
e2f34481 NJ |
7144 | } |
7145 | ||
7146 | static inline bool lock_defer_pending(struct file_lock *fl) | |
7147 | { | |
7148 | /* check pending lock waiters */ | |
16f9ce81 | 7149 | return waitqueue_active(&fl->c.flc_wait); |
e2f34481 NJ |
7150 | } |
7151 | ||
7152 | /** | |
7153 | * smb2_lock() - handler for smb2 file lock command | |
7154 | * @work: smb work containing lock command buffer | |
7155 | * | |
7156 | * Return: 0 on success, otherwise error | |
7157 | */ | |
7158 | int smb2_lock(struct ksmbd_work *work) | |
7159 | { | |
7b7d709e NJ |
7160 | struct smb2_lock_req *req; |
7161 | struct smb2_lock_rsp *rsp; | |
e2f34481 NJ |
7162 | struct smb2_lock_element *lock_ele; |
7163 | struct ksmbd_file *fp = NULL; | |
7164 | struct file_lock *flock = NULL; | |
7165 | struct file *filp = NULL; | |
7166 | int lock_count; | |
7167 | int flags = 0; | |
7168 | int cmd = 0; | |
6c99dfc4 | 7169 | int err = -EIO, i, rc = 0; |
50bf80a5 | 7170 | u64 lock_start, lock_length; |
d63528eb HL |
7171 | struct ksmbd_lock *smb_lock = NULL, *cmp_lock, *tmp, *tmp2; |
7172 | struct ksmbd_conn *conn; | |
e2f34481 NJ |
7173 | int nolock = 0; |
7174 | LIST_HEAD(lock_list); | |
7175 | LIST_HEAD(rollback_list); | |
7176 | int prior_lock = 0; | |
7177 | ||
7b7d709e NJ |
7178 | WORK_BUFFERS(work, req, rsp); |
7179 | ||
e2f34481 | 7180 | ksmbd_debug(SMB, "Received lock request\n"); |
2d004c6c | 7181 | fp = ksmbd_lookup_fd_slow(work, req->VolatileFileId, req->PersistentFileId); |
e2f34481 | 7182 | if (!fp) { |
2d004c6c | 7183 | ksmbd_debug(SMB, "Invalid file id for lock : %llu\n", req->VolatileFileId); |
6c99dfc4 | 7184 | err = -ENOENT; |
e2f34481 NJ |
7185 | goto out2; |
7186 | } | |
7187 | ||
7188 | filp = fp->filp; | |
7189 | lock_count = le16_to_cpu(req->LockCount); | |
7190 | lock_ele = req->locks; | |
7191 | ||
7192 | ksmbd_debug(SMB, "lock count is %d\n", lock_count); | |
070fb21e | 7193 | if (!lock_count) { |
6c99dfc4 | 7194 | err = -EINVAL; |
e2f34481 NJ |
7195 | goto out2; |
7196 | } | |
7197 | ||
7198 | for (i = 0; i < lock_count; i++) { | |
7199 | flags = le32_to_cpu(lock_ele[i].Flags); | |
7200 | ||
7201 | flock = smb_flock_init(filp); | |
6c99dfc4 | 7202 | if (!flock) |
e2f34481 | 7203 | goto out; |
e2f34481 NJ |
7204 | |
7205 | cmd = smb2_set_flock_flags(flock, flags); | |
7206 | ||
50bf80a5 NJ |
7207 | lock_start = le64_to_cpu(lock_ele[i].Offset); |
7208 | lock_length = le64_to_cpu(lock_ele[i].Length); | |
7209 | if (lock_start > U64_MAX - lock_length) { | |
bde1694a | 7210 | pr_err("Invalid lock range requested\n"); |
e2f34481 | 7211 | rsp->hdr.Status = STATUS_INVALID_LOCK_RANGE; |
01f6c61b | 7212 | locks_free_lock(flock); |
e2f34481 NJ |
7213 | goto out; |
7214 | } | |
7215 | ||
50bf80a5 NJ |
7216 | if (lock_start > OFFSET_MAX) |
7217 | flock->fl_start = OFFSET_MAX; | |
7218 | else | |
7219 | flock->fl_start = lock_start; | |
7220 | ||
e2f34481 | 7221 | lock_length = le64_to_cpu(lock_ele[i].Length); |
50bf80a5 NJ |
7222 | if (lock_length > OFFSET_MAX - flock->fl_start) |
7223 | lock_length = OFFSET_MAX - flock->fl_start; | |
e2f34481 NJ |
7224 | |
7225 | flock->fl_end = flock->fl_start + lock_length; | |
7226 | ||
7227 | if (flock->fl_end < flock->fl_start) { | |
7228 | ksmbd_debug(SMB, | |
070fb21e NJ |
7229 | "the end offset(%llx) is smaller than the start offset(%llx)\n", |
7230 | flock->fl_end, flock->fl_start); | |
e2f34481 | 7231 | rsp->hdr.Status = STATUS_INVALID_LOCK_RANGE; |
01f6c61b | 7232 | locks_free_lock(flock); |
e2f34481 NJ |
7233 | goto out; |
7234 | } | |
7235 | ||
7236 | /* Check conflict locks in one request */ | |
7237 | list_for_each_entry(cmp_lock, &lock_list, llist) { | |
7238 | if (cmp_lock->fl->fl_start <= flock->fl_start && | |
64b39f4a | 7239 | cmp_lock->fl->fl_end >= flock->fl_end) { |
16f9ce81 JL |
7240 | if (cmp_lock->fl->c.flc_type != F_UNLCK && |
7241 | flock->c.flc_type != F_UNLCK) { | |
bde1694a | 7242 | pr_err("conflict two locks in one request\n"); |
6c99dfc4 | 7243 | err = -EINVAL; |
01f6c61b | 7244 | locks_free_lock(flock); |
e2f34481 NJ |
7245 | goto out; |
7246 | } | |
7247 | } | |
7248 | } | |
7249 | ||
7250 | smb_lock = smb2_lock_init(flock, cmd, flags, &lock_list); | |
7251 | if (!smb_lock) { | |
6c99dfc4 | 7252 | err = -EINVAL; |
01f6c61b | 7253 | locks_free_lock(flock); |
e2f34481 NJ |
7254 | goto out; |
7255 | } | |
7256 | } | |
7257 | ||
7258 | list_for_each_entry_safe(smb_lock, tmp, &lock_list, llist) { | |
7259 | if (smb_lock->cmd < 0) { | |
6c99dfc4 | 7260 | err = -EINVAL; |
e2f34481 NJ |
7261 | goto out; |
7262 | } | |
7263 | ||
7264 | if (!(smb_lock->flags & SMB2_LOCKFLAG_MASK)) { | |
6c99dfc4 | 7265 | err = -EINVAL; |
e2f34481 NJ |
7266 | goto out; |
7267 | } | |
7268 | ||
64b39f4a NJ |
7269 | if ((prior_lock & (SMB2_LOCKFLAG_EXCLUSIVE | SMB2_LOCKFLAG_SHARED) && |
7270 | smb_lock->flags & SMB2_LOCKFLAG_UNLOCK) || | |
7271 | (prior_lock == SMB2_LOCKFLAG_UNLOCK && | |
7272 | !(smb_lock->flags & SMB2_LOCKFLAG_UNLOCK))) { | |
6c99dfc4 | 7273 | err = -EINVAL; |
e2f34481 NJ |
7274 | goto out; |
7275 | } | |
7276 | ||
7277 | prior_lock = smb_lock->flags; | |
7278 | ||
7279 | if (!(smb_lock->flags & SMB2_LOCKFLAG_UNLOCK) && | |
64b39f4a | 7280 | !(smb_lock->flags & SMB2_LOCKFLAG_FAIL_IMMEDIATELY)) |
d63528eb | 7281 | goto no_check_cl; |
e2f34481 NJ |
7282 | |
7283 | nolock = 1; | |
d63528eb | 7284 | /* check locks in connection list */ |
abcc506a | 7285 | down_read(&conn_list_lock); |
d63528eb HL |
7286 | list_for_each_entry(conn, &conn_list, conns_list) { |
7287 | spin_lock(&conn->llist_lock); | |
7288 | list_for_each_entry_safe(cmp_lock, tmp2, &conn->lock_list, clist) { | |
16f9ce81 JL |
7289 | if (file_inode(cmp_lock->fl->c.flc_file) != |
7290 | file_inode(smb_lock->fl->c.flc_file)) | |
d63528eb | 7291 | continue; |
e2f34481 | 7292 | |
6a277077 | 7293 | if (lock_is_unlock(smb_lock->fl)) { |
16f9ce81 | 7294 | if (cmp_lock->fl->c.flc_file == smb_lock->fl->c.flc_file && |
d63528eb HL |
7295 | cmp_lock->start == smb_lock->start && |
7296 | cmp_lock->end == smb_lock->end && | |
7297 | !lock_defer_pending(cmp_lock->fl)) { | |
7298 | nolock = 0; | |
7299 | list_del(&cmp_lock->flist); | |
7300 | list_del(&cmp_lock->clist); | |
7301 | spin_unlock(&conn->llist_lock); | |
abcc506a | 7302 | up_read(&conn_list_lock); |
d63528eb HL |
7303 | |
7304 | locks_free_lock(cmp_lock->fl); | |
7305 | kfree(cmp_lock); | |
7306 | goto out_check_cl; | |
7307 | } | |
7308 | continue; | |
e2f34481 | 7309 | } |
e2f34481 | 7310 | |
16f9ce81 | 7311 | if (cmp_lock->fl->c.flc_file == smb_lock->fl->c.flc_file) { |
d63528eb HL |
7312 | if (smb_lock->flags & SMB2_LOCKFLAG_SHARED) |
7313 | continue; | |
7314 | } else { | |
7315 | if (cmp_lock->flags & SMB2_LOCKFLAG_SHARED) | |
7316 | continue; | |
7317 | } | |
e2f34481 | 7318 | |
d63528eb HL |
7319 | /* check zero byte lock range */ |
7320 | if (cmp_lock->zero_len && !smb_lock->zero_len && | |
7321 | cmp_lock->start > smb_lock->start && | |
7322 | cmp_lock->start < smb_lock->end) { | |
7323 | spin_unlock(&conn->llist_lock); | |
abcc506a | 7324 | up_read(&conn_list_lock); |
d63528eb | 7325 | pr_err("previous lock conflict with zero byte lock range\n"); |
6c99dfc4 | 7326 | goto out; |
d63528eb | 7327 | } |
e2f34481 | 7328 | |
d63528eb HL |
7329 | if (smb_lock->zero_len && !cmp_lock->zero_len && |
7330 | smb_lock->start > cmp_lock->start && | |
7331 | smb_lock->start < cmp_lock->end) { | |
7332 | spin_unlock(&conn->llist_lock); | |
abcc506a | 7333 | up_read(&conn_list_lock); |
d63528eb | 7334 | pr_err("current lock conflict with zero byte lock range\n"); |
6c99dfc4 | 7335 | goto out; |
d63528eb | 7336 | } |
e2f34481 | 7337 | |
d63528eb HL |
7338 | if (((cmp_lock->start <= smb_lock->start && |
7339 | cmp_lock->end > smb_lock->start) || | |
7340 | (cmp_lock->start < smb_lock->end && | |
7341 | cmp_lock->end >= smb_lock->end)) && | |
7342 | !cmp_lock->zero_len && !smb_lock->zero_len) { | |
7343 | spin_unlock(&conn->llist_lock); | |
abcc506a | 7344 | up_read(&conn_list_lock); |
d63528eb | 7345 | pr_err("Not allow lock operation on exclusive lock range\n"); |
d63528eb HL |
7346 | goto out; |
7347 | } | |
e2f34481 | 7348 | } |
d63528eb | 7349 | spin_unlock(&conn->llist_lock); |
e2f34481 | 7350 | } |
abcc506a | 7351 | up_read(&conn_list_lock); |
d63528eb | 7352 | out_check_cl: |
6a277077 | 7353 | if (lock_is_unlock(smb_lock->fl) && nolock) { |
bde1694a | 7354 | pr_err("Try to unlock nolocked range\n"); |
e2f34481 NJ |
7355 | rsp->hdr.Status = STATUS_RANGE_NOT_LOCKED; |
7356 | goto out; | |
7357 | } | |
7358 | ||
d63528eb | 7359 | no_check_cl: |
e2f34481 NJ |
7360 | if (smb_lock->zero_len) { |
7361 | err = 0; | |
7362 | goto skip; | |
7363 | } | |
7364 | ||
7365 | flock = smb_lock->fl; | |
7366 | list_del(&smb_lock->llist); | |
7367 | retry: | |
6c99dfc4 | 7368 | rc = vfs_lock_file(filp, smb_lock->cmd, flock, NULL); |
e2f34481 NJ |
7369 | skip: |
7370 | if (flags & SMB2_LOCKFLAG_UNLOCK) { | |
6c99dfc4 | 7371 | if (!rc) { |
e2f34481 | 7372 | ksmbd_debug(SMB, "File unlocked\n"); |
6c99dfc4 | 7373 | } else if (rc == -ENOENT) { |
e2f34481 NJ |
7374 | rsp->hdr.Status = STATUS_NOT_LOCKED; |
7375 | goto out; | |
7376 | } | |
7377 | locks_free_lock(flock); | |
7378 | kfree(smb_lock); | |
7379 | } else { | |
6c99dfc4 | 7380 | if (rc == FILE_LOCK_DEFERRED) { |
e2f34481 NJ |
7381 | void **argv; |
7382 | ||
7383 | ksmbd_debug(SMB, | |
070fb21e | 7384 | "would have to wait for getting lock\n"); |
e2f34481 NJ |
7385 | list_add(&smb_lock->llist, &rollback_list); |
7386 | ||
7387 | argv = kmalloc(sizeof(void *), GFP_KERNEL); | |
7388 | if (!argv) { | |
7389 | err = -ENOMEM; | |
7390 | goto out; | |
7391 | } | |
7392 | argv[0] = flock; | |
7393 | ||
6c99dfc4 NJ |
7394 | rc = setup_async_work(work, |
7395 | smb2_remove_blocked_lock, | |
7396 | argv); | |
7397 | if (rc) { | |
8f175272 | 7398 | kfree(argv); |
6c99dfc4 | 7399 | err = -ENOMEM; |
e2f34481 NJ |
7400 | goto out; |
7401 | } | |
7402 | spin_lock(&fp->f_lock); | |
7403 | list_add(&work->fp_entry, &fp->blocked_works); | |
7404 | spin_unlock(&fp->f_lock); | |
7405 | ||
7406 | smb2_send_interim_resp(work, STATUS_PENDING); | |
7407 | ||
45a64e8b | 7408 | ksmbd_vfs_posix_lock_wait(flock); |
e2f34481 | 7409 | |
d3ca9f7a HH |
7410 | spin_lock(&fp->f_lock); |
7411 | list_del(&work->fp_entry); | |
d3ca9f7a | 7412 | spin_unlock(&fp->f_lock); |
d3ca9f7a | 7413 | |
d4075abb | 7414 | if (work->state != KSMBD_WORK_ACTIVE) { |
e2f34481 | 7415 | list_del(&smb_lock->llist); |
e2f34481 NJ |
7416 | locks_free_lock(flock); |
7417 | ||
d4075abb | 7418 | if (work->state == KSMBD_WORK_CANCELLED) { |
e2f34481 NJ |
7419 | rsp->hdr.Status = |
7420 | STATUS_CANCELLED; | |
7421 | kfree(smb_lock); | |
7422 | smb2_send_interim_resp(work, | |
070fb21e | 7423 | STATUS_CANCELLED); |
e2f34481 NJ |
7424 | work->send_no_response = 1; |
7425 | goto out; | |
7426 | } | |
3a9b557f | 7427 | |
e2f34481 NJ |
7428 | rsp->hdr.Status = |
7429 | STATUS_RANGE_NOT_LOCKED; | |
7430 | kfree(smb_lock); | |
7431 | goto out2; | |
7432 | } | |
7433 | ||
7434 | list_del(&smb_lock->llist); | |
3a9b557f | 7435 | release_async_work(work); |
e2f34481 | 7436 | goto retry; |
6c99dfc4 | 7437 | } else if (!rc) { |
75ac9a3d | 7438 | list_add(&smb_lock->llist, &rollback_list); |
d63528eb HL |
7439 | spin_lock(&work->conn->llist_lock); |
7440 | list_add_tail(&smb_lock->clist, | |
7441 | &work->conn->lock_list); | |
7442 | list_add_tail(&smb_lock->flist, | |
7443 | &fp->lock_list); | |
7444 | spin_unlock(&work->conn->llist_lock); | |
e2f34481 NJ |
7445 | ksmbd_debug(SMB, "successful in taking lock\n"); |
7446 | } else { | |
e2f34481 NJ |
7447 | goto out; |
7448 | } | |
7449 | } | |
7450 | } | |
7451 | ||
7452 | if (atomic_read(&fp->f_ci->op_count) > 1) | |
7453 | smb_break_all_oplock(work, fp); | |
7454 | ||
7455 | rsp->StructureSize = cpu_to_le16(4); | |
7456 | ksmbd_debug(SMB, "successful in taking lock\n"); | |
7457 | rsp->hdr.Status = STATUS_SUCCESS; | |
7458 | rsp->Reserved = 0; | |
e2b76ab8 NJ |
7459 | err = ksmbd_iov_pin_rsp(work, rsp, sizeof(struct smb2_lock_rsp)); |
7460 | if (err) | |
7461 | goto out; | |
7462 | ||
e2f34481 | 7463 | ksmbd_fd_put(work, fp); |
96ad4ec5 | 7464 | return 0; |
e2f34481 NJ |
7465 | |
7466 | out: | |
7467 | list_for_each_entry_safe(smb_lock, tmp, &lock_list, llist) { | |
7468 | locks_free_lock(smb_lock->fl); | |
7469 | list_del(&smb_lock->llist); | |
7470 | kfree(smb_lock); | |
7471 | } | |
7472 | ||
7473 | list_for_each_entry_safe(smb_lock, tmp, &rollback_list, llist) { | |
7474 | struct file_lock *rlock = NULL; | |
7475 | ||
7476 | rlock = smb_flock_init(filp); | |
16f9ce81 | 7477 | rlock->c.flc_type = F_UNLCK; |
e2f34481 NJ |
7478 | rlock->fl_start = smb_lock->start; |
7479 | rlock->fl_end = smb_lock->end; | |
7480 | ||
7ecbe926 | 7481 | rc = vfs_lock_file(filp, F_SETLK, rlock, NULL); |
96ad4ec5 NJ |
7482 | if (rc) |
7483 | pr_err("rollback unlock fail : %d\n", rc); | |
d63528eb | 7484 | |
e2f34481 | 7485 | list_del(&smb_lock->llist); |
d63528eb HL |
7486 | spin_lock(&work->conn->llist_lock); |
7487 | if (!list_empty(&smb_lock->flist)) | |
7488 | list_del(&smb_lock->flist); | |
7489 | list_del(&smb_lock->clist); | |
7490 | spin_unlock(&work->conn->llist_lock); | |
7491 | ||
e2f34481 NJ |
7492 | locks_free_lock(smb_lock->fl); |
7493 | locks_free_lock(rlock); | |
7494 | kfree(smb_lock); | |
7495 | } | |
7496 | out2: | |
6c99dfc4 NJ |
7497 | ksmbd_debug(SMB, "failed in taking lock(flags : %x), err : %d\n", flags, err); |
7498 | ||
7499 | if (!rsp->hdr.Status) { | |
7500 | if (err == -EINVAL) | |
7501 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; | |
7502 | else if (err == -ENOMEM) | |
7503 | rsp->hdr.Status = STATUS_INSUFFICIENT_RESOURCES; | |
7504 | else if (err == -ENOENT) | |
7505 | rsp->hdr.Status = STATUS_FILE_CLOSED; | |
7506 | else | |
7507 | rsp->hdr.Status = STATUS_LOCK_NOT_GRANTED; | |
7508 | } | |
7509 | ||
e2f34481 NJ |
7510 | smb2_set_err_rsp(work); |
7511 | ksmbd_fd_put(work, fp); | |
96ad4ec5 | 7512 | return err; |
e2f34481 NJ |
7513 | } |
7514 | ||
f7db8fd0 NJ |
7515 | static int fsctl_copychunk(struct ksmbd_work *work, |
7516 | struct copychunk_ioctl_req *ci_req, | |
7517 | unsigned int cnt_code, | |
7518 | unsigned int input_count, | |
7519 | unsigned long long volatile_id, | |
7520 | unsigned long long persistent_id, | |
070fb21e | 7521 | struct smb2_ioctl_rsp *rsp) |
e2f34481 | 7522 | { |
e2f34481 NJ |
7523 | struct copychunk_ioctl_rsp *ci_rsp; |
7524 | struct ksmbd_file *src_fp = NULL, *dst_fp = NULL; | |
7525 | struct srv_copychunk *chunks; | |
7526 | unsigned int i, chunk_count, chunk_count_written = 0; | |
7527 | unsigned int chunk_size_written = 0; | |
7528 | loff_t total_size_written = 0; | |
f7db8fd0 | 7529 | int ret = 0; |
e2f34481 | 7530 | |
e2f34481 NJ |
7531 | ci_rsp = (struct copychunk_ioctl_rsp *)&rsp->Buffer[0]; |
7532 | ||
2d004c6c PA |
7533 | rsp->VolatileFileId = volatile_id; |
7534 | rsp->PersistentFileId = persistent_id; | |
64b39f4a NJ |
7535 | ci_rsp->ChunksWritten = |
7536 | cpu_to_le32(ksmbd_server_side_copy_max_chunk_count()); | |
7537 | ci_rsp->ChunkBytesWritten = | |
7538 | cpu_to_le32(ksmbd_server_side_copy_max_chunk_size()); | |
7539 | ci_rsp->TotalBytesWritten = | |
7540 | cpu_to_le32(ksmbd_server_side_copy_max_total_size()); | |
e2f34481 NJ |
7541 | |
7542 | chunks = (struct srv_copychunk *)&ci_req->Chunks[0]; | |
7543 | chunk_count = le32_to_cpu(ci_req->ChunkCount); | |
f7db8fd0 NJ |
7544 | if (chunk_count == 0) |
7545 | goto out; | |
e2f34481 NJ |
7546 | total_size_written = 0; |
7547 | ||
7548 | /* verify the SRV_COPYCHUNK_COPY packet */ | |
7549 | if (chunk_count > ksmbd_server_side_copy_max_chunk_count() || | |
f7db8fd0 | 7550 | input_count < offsetof(struct copychunk_ioctl_req, Chunks) + |
64b39f4a | 7551 | chunk_count * sizeof(struct srv_copychunk)) { |
e2f34481 NJ |
7552 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; |
7553 | return -EINVAL; | |
7554 | } | |
7555 | ||
7556 | for (i = 0; i < chunk_count; i++) { | |
7557 | if (le32_to_cpu(chunks[i].Length) == 0 || | |
64b39f4a | 7558 | le32_to_cpu(chunks[i].Length) > ksmbd_server_side_copy_max_chunk_size()) |
e2f34481 NJ |
7559 | break; |
7560 | total_size_written += le32_to_cpu(chunks[i].Length); | |
7561 | } | |
64b39f4a NJ |
7562 | |
7563 | if (i < chunk_count || | |
7564 | total_size_written > ksmbd_server_side_copy_max_total_size()) { | |
e2f34481 NJ |
7565 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; |
7566 | return -EINVAL; | |
7567 | } | |
7568 | ||
7569 | src_fp = ksmbd_lookup_foreign_fd(work, | |
070fb21e | 7570 | le64_to_cpu(ci_req->ResumeKey[0])); |
f7db8fd0 | 7571 | dst_fp = ksmbd_lookup_fd_slow(work, volatile_id, persistent_id); |
e2f34481 | 7572 | ret = -EINVAL; |
64b39f4a NJ |
7573 | if (!src_fp || |
7574 | src_fp->persistent_id != le64_to_cpu(ci_req->ResumeKey[1])) { | |
e2f34481 NJ |
7575 | rsp->hdr.Status = STATUS_OBJECT_NAME_NOT_FOUND; |
7576 | goto out; | |
7577 | } | |
64b39f4a | 7578 | |
e2f34481 NJ |
7579 | if (!dst_fp) { |
7580 | rsp->hdr.Status = STATUS_FILE_CLOSED; | |
7581 | goto out; | |
7582 | } | |
7583 | ||
7584 | /* | |
7585 | * FILE_READ_DATA should only be included in | |
7586 | * the FSCTL_COPYCHUNK case | |
7587 | */ | |
070fb21e NJ |
7588 | if (cnt_code == FSCTL_COPYCHUNK && |
7589 | !(dst_fp->daccess & (FILE_READ_DATA_LE | FILE_GENERIC_READ_LE))) { | |
e2f34481 NJ |
7590 | rsp->hdr.Status = STATUS_ACCESS_DENIED; |
7591 | goto out; | |
7592 | } | |
7593 | ||
7594 | ret = ksmbd_vfs_copy_file_ranges(work, src_fp, dst_fp, | |
070fb21e NJ |
7595 | chunks, chunk_count, |
7596 | &chunk_count_written, | |
7597 | &chunk_size_written, | |
7598 | &total_size_written); | |
e2f34481 NJ |
7599 | if (ret < 0) { |
7600 | if (ret == -EACCES) | |
7601 | rsp->hdr.Status = STATUS_ACCESS_DENIED; | |
7602 | if (ret == -EAGAIN) | |
7603 | rsp->hdr.Status = STATUS_FILE_LOCK_CONFLICT; | |
7604 | else if (ret == -EBADF) | |
7605 | rsp->hdr.Status = STATUS_INVALID_HANDLE; | |
7606 | else if (ret == -EFBIG || ret == -ENOSPC) | |
7607 | rsp->hdr.Status = STATUS_DISK_FULL; | |
7608 | else if (ret == -EINVAL) | |
7609 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; | |
7610 | else if (ret == -EISDIR) | |
7611 | rsp->hdr.Status = STATUS_FILE_IS_A_DIRECTORY; | |
7612 | else if (ret == -E2BIG) | |
7613 | rsp->hdr.Status = STATUS_INVALID_VIEW_SIZE; | |
7614 | else | |
7615 | rsp->hdr.Status = STATUS_UNEXPECTED_IO_ERROR; | |
7616 | } | |
7617 | ||
7618 | ci_rsp->ChunksWritten = cpu_to_le32(chunk_count_written); | |
7619 | ci_rsp->ChunkBytesWritten = cpu_to_le32(chunk_size_written); | |
7620 | ci_rsp->TotalBytesWritten = cpu_to_le32(total_size_written); | |
7621 | out: | |
7622 | ksmbd_fd_put(work, src_fp); | |
7623 | ksmbd_fd_put(work, dst_fp); | |
7624 | return ret; | |
7625 | } | |
7626 | ||
7627 | static __be32 idev_ipv4_address(struct in_device *idev) | |
7628 | { | |
7629 | __be32 addr = 0; | |
7630 | ||
7631 | struct in_ifaddr *ifa; | |
7632 | ||
7633 | rcu_read_lock(); | |
7634 | in_dev_for_each_ifa_rcu(ifa, idev) { | |
7635 | if (ifa->ifa_flags & IFA_F_SECONDARY) | |
7636 | continue; | |
7637 | ||
7638 | addr = ifa->ifa_address; | |
7639 | break; | |
7640 | } | |
7641 | rcu_read_unlock(); | |
7642 | return addr; | |
7643 | } | |
7644 | ||
7645 | static int fsctl_query_iface_info_ioctl(struct ksmbd_conn *conn, | |
f7db8fd0 NJ |
7646 | struct smb2_ioctl_rsp *rsp, |
7647 | unsigned int out_buf_len) | |
e2f34481 NJ |
7648 | { |
7649 | struct network_interface_info_ioctl_rsp *nii_rsp = NULL; | |
7650 | int nbytes = 0; | |
7651 | struct net_device *netdev; | |
7652 | struct sockaddr_storage_rsp *sockaddr_storage; | |
7653 | unsigned int flags; | |
7654 | unsigned long long speed; | |
7655 | ||
7656 | rtnl_lock(); | |
7657 | for_each_netdev(&init_net, netdev) { | |
71cd9cb6 | 7658 | bool ipv4_set = false; |
f7db8fd0 | 7659 | |
e2f34481 NJ |
7660 | if (netdev->type == ARPHRD_LOOPBACK) |
7661 | continue; | |
7662 | ||
7663 | flags = dev_get_flags(netdev); | |
7664 | if (!(flags & IFF_RUNNING)) | |
7665 | continue; | |
71cd9cb6 NJ |
7666 | ipv6_retry: |
7667 | if (out_buf_len < | |
7668 | nbytes + sizeof(struct network_interface_info_ioctl_rsp)) { | |
7669 | rtnl_unlock(); | |
7670 | return -ENOSPC; | |
7671 | } | |
e2f34481 NJ |
7672 | |
7673 | nii_rsp = (struct network_interface_info_ioctl_rsp *) | |
7674 | &rsp->Buffer[nbytes]; | |
7675 | nii_rsp->IfIndex = cpu_to_le32(netdev->ifindex); | |
7676 | ||
03d8d4f1 | 7677 | nii_rsp->Capability = 0; |
a58b45a4 NJ |
7678 | if (netdev->real_num_tx_queues > 1) |
7679 | nii_rsp->Capability |= cpu_to_le32(RSS_CAPABLE); | |
03d8d4f1 HL |
7680 | if (ksmbd_rdma_capable_netdev(netdev)) |
7681 | nii_rsp->Capability |= cpu_to_le32(RDMA_CAPABLE); | |
e2f34481 NJ |
7682 | |
7683 | nii_rsp->Next = cpu_to_le32(152); | |
7684 | nii_rsp->Reserved = 0; | |
7685 | ||
7686 | if (netdev->ethtool_ops->get_link_ksettings) { | |
7687 | struct ethtool_link_ksettings cmd; | |
7688 | ||
7689 | netdev->ethtool_ops->get_link_ksettings(netdev, &cmd); | |
7690 | speed = cmd.base.speed; | |
7691 | } else { | |
d475866e PF |
7692 | ksmbd_debug(SMB, "%s %s\n", netdev->name, |
7693 | "speed is unknown, defaulting to 1Gb/sec"); | |
e2f34481 NJ |
7694 | speed = SPEED_1000; |
7695 | } | |
7696 | ||
7697 | speed *= 1000000; | |
7698 | nii_rsp->LinkSpeed = cpu_to_le64(speed); | |
7699 | ||
7700 | sockaddr_storage = (struct sockaddr_storage_rsp *) | |
7701 | nii_rsp->SockAddr_Storage; | |
7702 | memset(sockaddr_storage, 0, 128); | |
7703 | ||
71cd9cb6 | 7704 | if (!ipv4_set) { |
e2f34481 NJ |
7705 | struct in_device *idev; |
7706 | ||
7707 | sockaddr_storage->Family = cpu_to_le16(INTERNETWORK); | |
7708 | sockaddr_storage->addr4.Port = 0; | |
7709 | ||
7710 | idev = __in_dev_get_rtnl(netdev); | |
7711 | if (!idev) | |
7712 | continue; | |
7713 | sockaddr_storage->addr4.IPv4address = | |
7714 | idev_ipv4_address(idev); | |
71cd9cb6 NJ |
7715 | nbytes += sizeof(struct network_interface_info_ioctl_rsp); |
7716 | ipv4_set = true; | |
7717 | goto ipv6_retry; | |
e2f34481 NJ |
7718 | } else { |
7719 | struct inet6_dev *idev6; | |
7720 | struct inet6_ifaddr *ifa; | |
7721 | __u8 *ipv6_addr = sockaddr_storage->addr6.IPv6address; | |
7722 | ||
7723 | sockaddr_storage->Family = cpu_to_le16(INTERNETWORKV6); | |
7724 | sockaddr_storage->addr6.Port = 0; | |
7725 | sockaddr_storage->addr6.FlowInfo = 0; | |
7726 | ||
7727 | idev6 = __in6_dev_get(netdev); | |
7728 | if (!idev6) | |
7729 | continue; | |
7730 | ||
7731 | list_for_each_entry(ifa, &idev6->addr_list, if_list) { | |
7732 | if (ifa->flags & (IFA_F_TENTATIVE | | |
7733 | IFA_F_DEPRECATED)) | |
7734 | continue; | |
7735 | memcpy(ipv6_addr, ifa->addr.s6_addr, 16); | |
7736 | break; | |
7737 | } | |
7738 | sockaddr_storage->addr6.ScopeId = 0; | |
71cd9cb6 | 7739 | nbytes += sizeof(struct network_interface_info_ioctl_rsp); |
e2f34481 | 7740 | } |
e2f34481 NJ |
7741 | } |
7742 | rtnl_unlock(); | |
7743 | ||
7744 | /* zero if this is last one */ | |
7745 | if (nii_rsp) | |
7746 | nii_rsp->Next = 0; | |
7747 | ||
2d004c6c PA |
7748 | rsp->PersistentFileId = SMB2_NO_FID; |
7749 | rsp->VolatileFileId = SMB2_NO_FID; | |
e2f34481 NJ |
7750 | return nbytes; |
7751 | } | |
7752 | ||
e2f34481 | 7753 | static int fsctl_validate_negotiate_info(struct ksmbd_conn *conn, |
070fb21e | 7754 | struct validate_negotiate_info_req *neg_req, |
f7db8fd0 NJ |
7755 | struct validate_negotiate_info_rsp *neg_rsp, |
7756 | unsigned int in_buf_len) | |
e2f34481 NJ |
7757 | { |
7758 | int ret = 0; | |
7759 | int dialect; | |
7760 | ||
78f1688a | 7761 | if (in_buf_len < offsetof(struct validate_negotiate_info_req, Dialects) + |
f7db8fd0 NJ |
7762 | le16_to_cpu(neg_req->DialectCount) * sizeof(__le16)) |
7763 | return -EINVAL; | |
7764 | ||
e2f34481 | 7765 | dialect = ksmbd_lookup_dialect_by_id(neg_req->Dialects, |
070fb21e | 7766 | neg_req->DialectCount); |
e2f34481 NJ |
7767 | if (dialect == BAD_PROT_ID || dialect != conn->dialect) { |
7768 | ret = -EINVAL; | |
7769 | goto err_out; | |
7770 | } | |
7771 | ||
7772 | if (strncmp(neg_req->Guid, conn->ClientGUID, SMB2_CLIENT_GUID_SIZE)) { | |
7773 | ret = -EINVAL; | |
7774 | goto err_out; | |
7775 | } | |
7776 | ||
7777 | if (le16_to_cpu(neg_req->SecurityMode) != conn->cli_sec_mode) { | |
7778 | ret = -EINVAL; | |
7779 | goto err_out; | |
7780 | } | |
7781 | ||
7782 | if (le32_to_cpu(neg_req->Capabilities) != conn->cli_cap) { | |
7783 | ret = -EINVAL; | |
7784 | goto err_out; | |
7785 | } | |
7786 | ||
7787 | neg_rsp->Capabilities = cpu_to_le32(conn->vals->capabilities); | |
7788 | memset(neg_rsp->Guid, 0, SMB2_CLIENT_GUID_SIZE); | |
7789 | neg_rsp->SecurityMode = cpu_to_le16(conn->srv_sec_mode); | |
7790 | neg_rsp->Dialect = cpu_to_le16(conn->dialect); | |
7791 | err_out: | |
7792 | return ret; | |
7793 | } | |
7794 | ||
64b39f4a | 7795 | static int fsctl_query_allocated_ranges(struct ksmbd_work *work, u64 id, |
070fb21e NJ |
7796 | struct file_allocated_range_buffer *qar_req, |
7797 | struct file_allocated_range_buffer *qar_rsp, | |
f7db8fd0 | 7798 | unsigned int in_count, unsigned int *out_count) |
e2f34481 NJ |
7799 | { |
7800 | struct ksmbd_file *fp; | |
7801 | loff_t start, length; | |
7802 | int ret = 0; | |
7803 | ||
7804 | *out_count = 0; | |
7805 | if (in_count == 0) | |
7806 | return -EINVAL; | |
7807 | ||
342edb60 NJ |
7808 | start = le64_to_cpu(qar_req->file_offset); |
7809 | length = le64_to_cpu(qar_req->length); | |
7810 | ||
7811 | if (start < 0 || length < 0) | |
7812 | return -EINVAL; | |
7813 | ||
e2f34481 NJ |
7814 | fp = ksmbd_lookup_fd_fast(work, id); |
7815 | if (!fp) | |
7816 | return -ENOENT; | |
7817 | ||
e2f34481 | 7818 | ret = ksmbd_vfs_fqar_lseek(fp, start, length, |
070fb21e | 7819 | qar_rsp, in_count, out_count); |
e2f34481 NJ |
7820 | if (ret && ret != -E2BIG) |
7821 | *out_count = 0; | |
7822 | ||
7823 | ksmbd_fd_put(work, fp); | |
7824 | return ret; | |
7825 | } | |
7826 | ||
64b39f4a | 7827 | static int fsctl_pipe_transceive(struct ksmbd_work *work, u64 id, |
f7db8fd0 NJ |
7828 | unsigned int out_buf_len, |
7829 | struct smb2_ioctl_req *req, | |
070fb21e | 7830 | struct smb2_ioctl_rsp *rsp) |
e2f34481 NJ |
7831 | { |
7832 | struct ksmbd_rpc_command *rpc_resp; | |
c6cd2e8d | 7833 | char *data_buf = (char *)req + le32_to_cpu(req->InputOffset); |
e2f34481 NJ |
7834 | int nbytes = 0; |
7835 | ||
64b39f4a | 7836 | rpc_resp = ksmbd_rpc_ioctl(work->sess, id, data_buf, |
070fb21e | 7837 | le32_to_cpu(req->InputCount)); |
e2f34481 NJ |
7838 | if (rpc_resp) { |
7839 | if (rpc_resp->flags == KSMBD_RPC_SOME_NOT_MAPPED) { | |
7840 | /* | |
7841 | * set STATUS_SOME_NOT_MAPPED response | |
7842 | * for unknown domain sid. | |
7843 | */ | |
7844 | rsp->hdr.Status = STATUS_SOME_NOT_MAPPED; | |
7845 | } else if (rpc_resp->flags == KSMBD_RPC_ENOTIMPLEMENTED) { | |
7846 | rsp->hdr.Status = STATUS_NOT_SUPPORTED; | |
7847 | goto out; | |
7848 | } else if (rpc_resp->flags != KSMBD_RPC_OK) { | |
7849 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; | |
7850 | goto out; | |
7851 | } | |
7852 | ||
7853 | nbytes = rpc_resp->payload_sz; | |
7854 | if (rpc_resp->payload_sz > out_buf_len) { | |
7855 | rsp->hdr.Status = STATUS_BUFFER_OVERFLOW; | |
7856 | nbytes = out_buf_len; | |
7857 | } | |
7858 | ||
7859 | if (!rpc_resp->payload_sz) { | |
7860 | rsp->hdr.Status = | |
7861 | STATUS_UNEXPECTED_IO_ERROR; | |
7862 | goto out; | |
7863 | } | |
7864 | ||
7865 | memcpy((char *)rsp->Buffer, rpc_resp->payload, nbytes); | |
7866 | } | |
7867 | out: | |
79f6b11a | 7868 | kvfree(rpc_resp); |
e2f34481 NJ |
7869 | return nbytes; |
7870 | } | |
7871 | ||
64b39f4a | 7872 | static inline int fsctl_set_sparse(struct ksmbd_work *work, u64 id, |
070fb21e | 7873 | struct file_sparse *sparse) |
e2f34481 NJ |
7874 | { |
7875 | struct ksmbd_file *fp; | |
4609e1f1 | 7876 | struct mnt_idmap *idmap; |
e2f34481 NJ |
7877 | int ret = 0; |
7878 | __le32 old_fattr; | |
7879 | ||
7880 | fp = ksmbd_lookup_fd_fast(work, id); | |
7881 | if (!fp) | |
7882 | return -ENOENT; | |
4609e1f1 | 7883 | idmap = file_mnt_idmap(fp->filp); |
e2f34481 NJ |
7884 | |
7885 | old_fattr = fp->f_ci->m_fattr; | |
7886 | if (sparse->SetSparse) | |
26a2787d | 7887 | fp->f_ci->m_fattr |= FILE_ATTRIBUTE_SPARSE_FILE_LE; |
e2f34481 | 7888 | else |
26a2787d | 7889 | fp->f_ci->m_fattr &= ~FILE_ATTRIBUTE_SPARSE_FILE_LE; |
e2f34481 NJ |
7890 | |
7891 | if (fp->f_ci->m_fattr != old_fattr && | |
64b39f4a NJ |
7892 | test_share_config_flag(work->tcon->share_conf, |
7893 | KSMBD_SHARE_FLAG_STORE_DOS_ATTRS)) { | |
e2f34481 NJ |
7894 | struct xattr_dos_attrib da; |
7895 | ||
4609e1f1 | 7896 | ret = ksmbd_vfs_get_dos_attrib_xattr(idmap, |
af34983e | 7897 | fp->filp->f_path.dentry, &da); |
e2f34481 NJ |
7898 | if (ret <= 0) |
7899 | goto out; | |
7900 | ||
7901 | da.attr = le32_to_cpu(fp->f_ci->m_fattr); | |
4609e1f1 | 7902 | ret = ksmbd_vfs_set_dos_attrib_xattr(idmap, |
864fb5d3 NJ |
7903 | &fp->filp->f_path, |
7904 | &da, true); | |
e2f34481 NJ |
7905 | if (ret) |
7906 | fp->f_ci->m_fattr = old_fattr; | |
7907 | } | |
7908 | ||
7909 | out: | |
7910 | ksmbd_fd_put(work, fp); | |
7911 | return ret; | |
7912 | } | |
7913 | ||
7914 | static int fsctl_request_resume_key(struct ksmbd_work *work, | |
070fb21e NJ |
7915 | struct smb2_ioctl_req *req, |
7916 | struct resume_key_ioctl_rsp *key_rsp) | |
e2f34481 NJ |
7917 | { |
7918 | struct ksmbd_file *fp; | |
7919 | ||
2d004c6c | 7920 | fp = ksmbd_lookup_fd_slow(work, req->VolatileFileId, req->PersistentFileId); |
e2f34481 NJ |
7921 | if (!fp) |
7922 | return -ENOENT; | |
7923 | ||
7924 | memset(key_rsp, 0, sizeof(*key_rsp)); | |
7925 | key_rsp->ResumeKey[0] = req->VolatileFileId; | |
7926 | key_rsp->ResumeKey[1] = req->PersistentFileId; | |
7927 | ksmbd_fd_put(work, fp); | |
7928 | ||
7929 | return 0; | |
7930 | } | |
7931 | ||
7932 | /** | |
7933 | * smb2_ioctl() - handler for smb2 ioctl command | |
7934 | * @work: smb work containing ioctl command buffer | |
7935 | * | |
7936 | * Return: 0 on success, otherwise error | |
7937 | */ | |
7938 | int smb2_ioctl(struct ksmbd_work *work) | |
7939 | { | |
7940 | struct smb2_ioctl_req *req; | |
cb451720 | 7941 | struct smb2_ioctl_rsp *rsp; |
f7db8fd0 | 7942 | unsigned int cnt_code, nbytes = 0, out_buf_len, in_buf_len; |
64b39f4a | 7943 | u64 id = KSMBD_NO_FID; |
e2f34481 NJ |
7944 | struct ksmbd_conn *conn = work->conn; |
7945 | int ret = 0; | |
c6cd2e8d | 7946 | char *buffer; |
e2f34481 | 7947 | |
e2f34481 | 7948 | if (work->next_smb2_rcv_hdr_off) { |
8a893315 NJ |
7949 | req = ksmbd_req_buf_next(work); |
7950 | rsp = ksmbd_resp_buf_next(work); | |
2d004c6c | 7951 | if (!has_file_id(req->VolatileFileId)) { |
3867369e | 7952 | ksmbd_debug(SMB, "Compound request set FID = %llu\n", |
070fb21e | 7953 | work->compound_fid); |
e2f34481 NJ |
7954 | id = work->compound_fid; |
7955 | } | |
7956 | } else { | |
cb451720 NJ |
7957 | req = smb2_get_msg(work->request_buf); |
7958 | rsp = smb2_get_msg(work->response_buf); | |
e2f34481 NJ |
7959 | } |
7960 | ||
3867369e | 7961 | if (!has_file_id(id)) |
2d004c6c | 7962 | id = req->VolatileFileId; |
e2f34481 NJ |
7963 | |
7964 | if (req->Flags != cpu_to_le32(SMB2_0_IOCTL_IS_FSCTL)) { | |
7965 | rsp->hdr.Status = STATUS_NOT_SUPPORTED; | |
7966 | goto out; | |
7967 | } | |
7968 | ||
c6cd2e8d NJ |
7969 | buffer = (char *)req + le32_to_cpu(req->InputOffset); |
7970 | ||
15e7b6d7 | 7971 | cnt_code = le32_to_cpu(req->CtlCode); |
34061d6b HL |
7972 | ret = smb2_calc_max_out_buf_len(work, 48, |
7973 | le32_to_cpu(req->MaxOutputResponse)); | |
7974 | if (ret < 0) { | |
7975 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; | |
7976 | goto out; | |
7977 | } | |
7978 | out_buf_len = (unsigned int)ret; | |
f7db8fd0 | 7979 | in_buf_len = le32_to_cpu(req->InputCount); |
e2f34481 NJ |
7980 | |
7981 | switch (cnt_code) { | |
7982 | case FSCTL_DFS_GET_REFERRALS: | |
7983 | case FSCTL_DFS_GET_REFERRALS_EX: | |
7984 | /* Not support DFS yet */ | |
7985 | rsp->hdr.Status = STATUS_FS_DRIVER_REQUIRED; | |
7986 | goto out; | |
7987 | case FSCTL_CREATE_OR_GET_OBJECT_ID: | |
7988 | { | |
7989 | struct file_object_buf_type1_ioctl_rsp *obj_buf; | |
7990 | ||
7991 | nbytes = sizeof(struct file_object_buf_type1_ioctl_rsp); | |
7992 | obj_buf = (struct file_object_buf_type1_ioctl_rsp *) | |
7993 | &rsp->Buffer[0]; | |
7994 | ||
7995 | /* | |
7996 | * TODO: This is dummy implementation to pass smbtorture | |
7997 | * Need to check correct response later | |
7998 | */ | |
7999 | memset(obj_buf->ObjectId, 0x0, 16); | |
8000 | memset(obj_buf->BirthVolumeId, 0x0, 16); | |
8001 | memset(obj_buf->BirthObjectId, 0x0, 16); | |
8002 | memset(obj_buf->DomainId, 0x0, 16); | |
8003 | ||
8004 | break; | |
8005 | } | |
8006 | case FSCTL_PIPE_TRANSCEIVE: | |
f7db8fd0 | 8007 | out_buf_len = min_t(u32, KSMBD_IPC_MAX_PAYLOAD, out_buf_len); |
e2f34481 NJ |
8008 | nbytes = fsctl_pipe_transceive(work, id, out_buf_len, req, rsp); |
8009 | break; | |
8010 | case FSCTL_VALIDATE_NEGOTIATE_INFO: | |
8011 | if (conn->dialect < SMB30_PROT_ID) { | |
8012 | ret = -EOPNOTSUPP; | |
8013 | goto out; | |
8014 | } | |
8015 | ||
b1763d26 ZX |
8016 | if (in_buf_len < offsetof(struct validate_negotiate_info_req, |
8017 | Dialects)) { | |
8018 | ret = -EINVAL; | |
8019 | goto out; | |
8020 | } | |
f7db8fd0 | 8021 | |
b1763d26 ZX |
8022 | if (out_buf_len < sizeof(struct validate_negotiate_info_rsp)) { |
8023 | ret = -EINVAL; | |
8024 | goto out; | |
8025 | } | |
f7db8fd0 | 8026 | |
e2f34481 | 8027 | ret = fsctl_validate_negotiate_info(conn, |
c6cd2e8d | 8028 | (struct validate_negotiate_info_req *)buffer, |
f7db8fd0 NJ |
8029 | (struct validate_negotiate_info_rsp *)&rsp->Buffer[0], |
8030 | in_buf_len); | |
e2f34481 NJ |
8031 | if (ret < 0) |
8032 | goto out; | |
8033 | ||
8034 | nbytes = sizeof(struct validate_negotiate_info_rsp); | |
2d004c6c PA |
8035 | rsp->PersistentFileId = SMB2_NO_FID; |
8036 | rsp->VolatileFileId = SMB2_NO_FID; | |
e2f34481 NJ |
8037 | break; |
8038 | case FSCTL_QUERY_NETWORK_INTERFACE_INFO: | |
f7db8fd0 NJ |
8039 | ret = fsctl_query_iface_info_ioctl(conn, rsp, out_buf_len); |
8040 | if (ret < 0) | |
e2f34481 | 8041 | goto out; |
f7db8fd0 | 8042 | nbytes = ret; |
e2f34481 NJ |
8043 | break; |
8044 | case FSCTL_REQUEST_RESUME_KEY: | |
8045 | if (out_buf_len < sizeof(struct resume_key_ioctl_rsp)) { | |
8046 | ret = -EINVAL; | |
8047 | goto out; | |
8048 | } | |
8049 | ||
8050 | ret = fsctl_request_resume_key(work, req, | |
070fb21e | 8051 | (struct resume_key_ioctl_rsp *)&rsp->Buffer[0]); |
e2f34481 NJ |
8052 | if (ret < 0) |
8053 | goto out; | |
8054 | rsp->PersistentFileId = req->PersistentFileId; | |
8055 | rsp->VolatileFileId = req->VolatileFileId; | |
8056 | nbytes = sizeof(struct resume_key_ioctl_rsp); | |
8057 | break; | |
8058 | case FSCTL_COPYCHUNK: | |
8059 | case FSCTL_COPYCHUNK_WRITE: | |
64b39f4a | 8060 | if (!test_tree_conn_flag(work->tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) { |
e2f34481 | 8061 | ksmbd_debug(SMB, |
070fb21e | 8062 | "User does not have write permission\n"); |
e2f34481 NJ |
8063 | ret = -EACCES; |
8064 | goto out; | |
8065 | } | |
8066 | ||
f7db8fd0 NJ |
8067 | if (in_buf_len < sizeof(struct copychunk_ioctl_req)) { |
8068 | ret = -EINVAL; | |
8069 | goto out; | |
8070 | } | |
8071 | ||
e2f34481 NJ |
8072 | if (out_buf_len < sizeof(struct copychunk_ioctl_rsp)) { |
8073 | ret = -EINVAL; | |
8074 | goto out; | |
8075 | } | |
8076 | ||
8077 | nbytes = sizeof(struct copychunk_ioctl_rsp); | |
f7db8fd0 NJ |
8078 | rsp->VolatileFileId = req->VolatileFileId; |
8079 | rsp->PersistentFileId = req->PersistentFileId; | |
8080 | fsctl_copychunk(work, | |
c6cd2e8d | 8081 | (struct copychunk_ioctl_req *)buffer, |
15e7b6d7 | 8082 | le32_to_cpu(req->CtlCode), |
f7db8fd0 | 8083 | le32_to_cpu(req->InputCount), |
2d004c6c PA |
8084 | req->VolatileFileId, |
8085 | req->PersistentFileId, | |
f7db8fd0 | 8086 | rsp); |
e2f34481 NJ |
8087 | break; |
8088 | case FSCTL_SET_SPARSE: | |
f7db8fd0 NJ |
8089 | if (in_buf_len < sizeof(struct file_sparse)) { |
8090 | ret = -EINVAL; | |
8091 | goto out; | |
8092 | } | |
8093 | ||
c6cd2e8d | 8094 | ret = fsctl_set_sparse(work, id, (struct file_sparse *)buffer); |
e2f34481 NJ |
8095 | if (ret < 0) |
8096 | goto out; | |
8097 | break; | |
8098 | case FSCTL_SET_ZERO_DATA: | |
8099 | { | |
8100 | struct file_zero_data_information *zero_data; | |
8101 | struct ksmbd_file *fp; | |
b5e5f9df | 8102 | loff_t off, len, bfz; |
e2f34481 | 8103 | |
64b39f4a | 8104 | if (!test_tree_conn_flag(work->tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) { |
e2f34481 | 8105 | ksmbd_debug(SMB, |
070fb21e | 8106 | "User does not have write permission\n"); |
e2f34481 NJ |
8107 | ret = -EACCES; |
8108 | goto out; | |
8109 | } | |
8110 | ||
f7db8fd0 NJ |
8111 | if (in_buf_len < sizeof(struct file_zero_data_information)) { |
8112 | ret = -EINVAL; | |
8113 | goto out; | |
8114 | } | |
8115 | ||
e2f34481 | 8116 | zero_data = |
c6cd2e8d | 8117 | (struct file_zero_data_information *)buffer; |
e2f34481 | 8118 | |
b5e5f9df NJ |
8119 | off = le64_to_cpu(zero_data->FileOffset); |
8120 | bfz = le64_to_cpu(zero_data->BeyondFinalZero); | |
2d74ec97 | 8121 | if (off < 0 || bfz < 0 || off > bfz) { |
b5e5f9df | 8122 | ret = -EINVAL; |
e2f34481 NJ |
8123 | goto out; |
8124 | } | |
8125 | ||
b5e5f9df NJ |
8126 | len = bfz - off; |
8127 | if (len) { | |
8128 | fp = ksmbd_lookup_fd_fast(work, id); | |
8129 | if (!fp) { | |
8130 | ret = -ENOENT; | |
8131 | goto out; | |
8132 | } | |
e2f34481 | 8133 | |
b5e5f9df NJ |
8134 | ret = ksmbd_vfs_zero_data(work, fp, off, len); |
8135 | ksmbd_fd_put(work, fp); | |
8136 | if (ret < 0) | |
8137 | goto out; | |
8138 | } | |
e2f34481 NJ |
8139 | break; |
8140 | } | |
8141 | case FSCTL_QUERY_ALLOCATED_RANGES: | |
f7db8fd0 NJ |
8142 | if (in_buf_len < sizeof(struct file_allocated_range_buffer)) { |
8143 | ret = -EINVAL; | |
8144 | goto out; | |
8145 | } | |
8146 | ||
e2f34481 | 8147 | ret = fsctl_query_allocated_ranges(work, id, |
c6cd2e8d | 8148 | (struct file_allocated_range_buffer *)buffer, |
e2f34481 NJ |
8149 | (struct file_allocated_range_buffer *)&rsp->Buffer[0], |
8150 | out_buf_len / | |
8151 | sizeof(struct file_allocated_range_buffer), &nbytes); | |
8152 | if (ret == -E2BIG) { | |
8153 | rsp->hdr.Status = STATUS_BUFFER_OVERFLOW; | |
8154 | } else if (ret < 0) { | |
8155 | nbytes = 0; | |
8156 | goto out; | |
8157 | } | |
8158 | ||
8159 | nbytes *= sizeof(struct file_allocated_range_buffer); | |
8160 | break; | |
8161 | case FSCTL_GET_REPARSE_POINT: | |
8162 | { | |
8163 | struct reparse_data_buffer *reparse_ptr; | |
8164 | struct ksmbd_file *fp; | |
8165 | ||
8166 | reparse_ptr = (struct reparse_data_buffer *)&rsp->Buffer[0]; | |
8167 | fp = ksmbd_lookup_fd_fast(work, id); | |
8168 | if (!fp) { | |
bde1694a | 8169 | pr_err("not found fp!!\n"); |
e2f34481 NJ |
8170 | ret = -ENOENT; |
8171 | goto out; | |
8172 | } | |
8173 | ||
8174 | reparse_ptr->ReparseTag = | |
ab0b263b | 8175 | smb2_get_reparse_tag_special_file(file_inode(fp->filp)->i_mode); |
e2f34481 NJ |
8176 | reparse_ptr->ReparseDataLength = 0; |
8177 | ksmbd_fd_put(work, fp); | |
8178 | nbytes = sizeof(struct reparse_data_buffer); | |
8179 | break; | |
8180 | } | |
eb817368 NJ |
8181 | case FSCTL_DUPLICATE_EXTENTS_TO_FILE: |
8182 | { | |
8183 | struct ksmbd_file *fp_in, *fp_out = NULL; | |
8184 | struct duplicate_extents_to_file *dup_ext; | |
8185 | loff_t src_off, dst_off, length, cloned; | |
8186 | ||
f7db8fd0 NJ |
8187 | if (in_buf_len < sizeof(struct duplicate_extents_to_file)) { |
8188 | ret = -EINVAL; | |
8189 | goto out; | |
8190 | } | |
8191 | ||
c6cd2e8d | 8192 | dup_ext = (struct duplicate_extents_to_file *)buffer; |
eb817368 NJ |
8193 | |
8194 | fp_in = ksmbd_lookup_fd_slow(work, dup_ext->VolatileFileHandle, | |
070fb21e | 8195 | dup_ext->PersistentFileHandle); |
eb817368 | 8196 | if (!fp_in) { |
bde1694a | 8197 | pr_err("not found file handle in duplicate extent to file\n"); |
eb817368 NJ |
8198 | ret = -ENOENT; |
8199 | goto out; | |
8200 | } | |
8201 | ||
8202 | fp_out = ksmbd_lookup_fd_fast(work, id); | |
8203 | if (!fp_out) { | |
bde1694a | 8204 | pr_err("not found fp\n"); |
eb817368 NJ |
8205 | ret = -ENOENT; |
8206 | goto dup_ext_out; | |
8207 | } | |
8208 | ||
8209 | src_off = le64_to_cpu(dup_ext->SourceFileOffset); | |
8210 | dst_off = le64_to_cpu(dup_ext->TargetFileOffset); | |
8211 | length = le64_to_cpu(dup_ext->ByteCount); | |
868f9f2f AG |
8212 | /* |
8213 | * XXX: It is not clear if FSCTL_DUPLICATE_EXTENTS_TO_FILE | |
8214 | * should fall back to vfs_copy_file_range(). This could be | |
8215 | * beneficial when re-exporting nfs/smb mount, but note that | |
8216 | * this can result in partial copy that returns an error status. | |
8217 | * If/when FSCTL_DUPLICATE_EXTENTS_TO_FILE_EX is implemented, | |
8218 | * fall back to vfs_copy_file_range(), should be avoided when | |
8219 | * the flag DUPLICATE_EXTENTS_DATA_EX_SOURCE_ATOMIC is set. | |
8220 | */ | |
8221 | cloned = vfs_clone_file_range(fp_in->filp, src_off, | |
8222 | fp_out->filp, dst_off, length, 0); | |
eb817368 NJ |
8223 | if (cloned == -EXDEV || cloned == -EOPNOTSUPP) { |
8224 | ret = -EOPNOTSUPP; | |
8225 | goto dup_ext_out; | |
8226 | } else if (cloned != length) { | |
f8524776 | 8227 | cloned = vfs_copy_file_range(fp_in->filp, src_off, |
868f9f2f AG |
8228 | fp_out->filp, dst_off, |
8229 | length, 0); | |
eb817368 NJ |
8230 | if (cloned != length) { |
8231 | if (cloned < 0) | |
8232 | ret = cloned; | |
8233 | else | |
8234 | ret = -EINVAL; | |
8235 | } | |
8236 | } | |
8237 | ||
8238 | dup_ext_out: | |
8239 | ksmbd_fd_put(work, fp_in); | |
8240 | ksmbd_fd_put(work, fp_out); | |
8241 | if (ret < 0) | |
8242 | goto out; | |
8243 | break; | |
8244 | } | |
e2f34481 NJ |
8245 | default: |
8246 | ksmbd_debug(SMB, "not implemented yet ioctl command 0x%x\n", | |
070fb21e | 8247 | cnt_code); |
e2f34481 NJ |
8248 | ret = -EOPNOTSUPP; |
8249 | goto out; | |
8250 | } | |
8251 | ||
15e7b6d7 | 8252 | rsp->CtlCode = cpu_to_le32(cnt_code); |
e2f34481 NJ |
8253 | rsp->InputCount = cpu_to_le32(0); |
8254 | rsp->InputOffset = cpu_to_le32(112); | |
8255 | rsp->OutputOffset = cpu_to_le32(112); | |
8256 | rsp->OutputCount = cpu_to_le32(nbytes); | |
8257 | rsp->StructureSize = cpu_to_le16(49); | |
8258 | rsp->Reserved = cpu_to_le16(0); | |
8259 | rsp->Flags = cpu_to_le32(0); | |
8260 | rsp->Reserved2 = cpu_to_le32(0); | |
e2b76ab8 NJ |
8261 | ret = ksmbd_iov_pin_rsp(work, rsp, sizeof(struct smb2_ioctl_rsp) + nbytes); |
8262 | if (!ret) | |
8263 | return ret; | |
e2f34481 NJ |
8264 | |
8265 | out: | |
8266 | if (ret == -EACCES) | |
8267 | rsp->hdr.Status = STATUS_ACCESS_DENIED; | |
8268 | else if (ret == -ENOENT) | |
8269 | rsp->hdr.Status = STATUS_OBJECT_NAME_NOT_FOUND; | |
8270 | else if (ret == -EOPNOTSUPP) | |
8271 | rsp->hdr.Status = STATUS_NOT_SUPPORTED; | |
f7db8fd0 NJ |
8272 | else if (ret == -ENOSPC) |
8273 | rsp->hdr.Status = STATUS_BUFFER_TOO_SMALL; | |
e2f34481 NJ |
8274 | else if (ret < 0 || rsp->hdr.Status == 0) |
8275 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; | |
8276 | smb2_set_err_rsp(work); | |
8277 | return 0; | |
8278 | } | |
8279 | ||
8280 | /** | |
8281 | * smb20_oplock_break_ack() - handler for smb2.0 oplock break command | |
8282 | * @work: smb work containing oplock break command buffer | |
8283 | * | |
8284 | * Return: 0 | |
8285 | */ | |
8286 | static void smb20_oplock_break_ack(struct ksmbd_work *work) | |
8287 | { | |
7b7d709e NJ |
8288 | struct smb2_oplock_break *req; |
8289 | struct smb2_oplock_break *rsp; | |
e2f34481 NJ |
8290 | struct ksmbd_file *fp; |
8291 | struct oplock_info *opinfo = NULL; | |
8292 | __le32 err = 0; | |
8293 | int ret = 0; | |
64b39f4a | 8294 | u64 volatile_id, persistent_id; |
e2f34481 NJ |
8295 | char req_oplevel = 0, rsp_oplevel = 0; |
8296 | unsigned int oplock_change_type; | |
8297 | ||
7b7d709e NJ |
8298 | WORK_BUFFERS(work, req, rsp); |
8299 | ||
c7803b05 SF |
8300 | volatile_id = req->VolatileFid; |
8301 | persistent_id = req->PersistentFid; | |
e2f34481 NJ |
8302 | req_oplevel = req->OplockLevel; |
8303 | ksmbd_debug(OPLOCK, "v_id %llu, p_id %llu request oplock level %d\n", | |
8304 | volatile_id, persistent_id, req_oplevel); | |
8305 | ||
8306 | fp = ksmbd_lookup_fd_slow(work, volatile_id, persistent_id); | |
8307 | if (!fp) { | |
8308 | rsp->hdr.Status = STATUS_FILE_CLOSED; | |
8309 | smb2_set_err_rsp(work); | |
8310 | return; | |
8311 | } | |
8312 | ||
8313 | opinfo = opinfo_get(fp); | |
8314 | if (!opinfo) { | |
bde1694a | 8315 | pr_err("unexpected null oplock_info\n"); |
e2f34481 NJ |
8316 | rsp->hdr.Status = STATUS_INVALID_OPLOCK_PROTOCOL; |
8317 | smb2_set_err_rsp(work); | |
8318 | ksmbd_fd_put(work, fp); | |
8319 | return; | |
8320 | } | |
8321 | ||
8322 | if (opinfo->level == SMB2_OPLOCK_LEVEL_NONE) { | |
8323 | rsp->hdr.Status = STATUS_INVALID_OPLOCK_PROTOCOL; | |
8324 | goto err_out; | |
8325 | } | |
8326 | ||
8327 | if (opinfo->op_state == OPLOCK_STATE_NONE) { | |
8328 | ksmbd_debug(SMB, "unexpected oplock state 0x%x\n", opinfo->op_state); | |
8329 | rsp->hdr.Status = STATUS_UNSUCCESSFUL; | |
8330 | goto err_out; | |
8331 | } | |
8332 | ||
64b39f4a NJ |
8333 | if ((opinfo->level == SMB2_OPLOCK_LEVEL_EXCLUSIVE || |
8334 | opinfo->level == SMB2_OPLOCK_LEVEL_BATCH) && | |
8335 | (req_oplevel != SMB2_OPLOCK_LEVEL_II && | |
8336 | req_oplevel != SMB2_OPLOCK_LEVEL_NONE)) { | |
e2f34481 NJ |
8337 | err = STATUS_INVALID_OPLOCK_PROTOCOL; |
8338 | oplock_change_type = OPLOCK_WRITE_TO_NONE; | |
64b39f4a NJ |
8339 | } else if (opinfo->level == SMB2_OPLOCK_LEVEL_II && |
8340 | req_oplevel != SMB2_OPLOCK_LEVEL_NONE) { | |
e2f34481 NJ |
8341 | err = STATUS_INVALID_OPLOCK_PROTOCOL; |
8342 | oplock_change_type = OPLOCK_READ_TO_NONE; | |
64b39f4a NJ |
8343 | } else if (req_oplevel == SMB2_OPLOCK_LEVEL_II || |
8344 | req_oplevel == SMB2_OPLOCK_LEVEL_NONE) { | |
e2f34481 | 8345 | err = STATUS_INVALID_DEVICE_STATE; |
64b39f4a NJ |
8346 | if ((opinfo->level == SMB2_OPLOCK_LEVEL_EXCLUSIVE || |
8347 | opinfo->level == SMB2_OPLOCK_LEVEL_BATCH) && | |
8348 | req_oplevel == SMB2_OPLOCK_LEVEL_II) { | |
e2f34481 | 8349 | oplock_change_type = OPLOCK_WRITE_TO_READ; |
64b39f4a NJ |
8350 | } else if ((opinfo->level == SMB2_OPLOCK_LEVEL_EXCLUSIVE || |
8351 | opinfo->level == SMB2_OPLOCK_LEVEL_BATCH) && | |
8352 | req_oplevel == SMB2_OPLOCK_LEVEL_NONE) { | |
e2f34481 | 8353 | oplock_change_type = OPLOCK_WRITE_TO_NONE; |
64b39f4a NJ |
8354 | } else if (opinfo->level == SMB2_OPLOCK_LEVEL_II && |
8355 | req_oplevel == SMB2_OPLOCK_LEVEL_NONE) { | |
e2f34481 | 8356 | oplock_change_type = OPLOCK_READ_TO_NONE; |
64b39f4a | 8357 | } else { |
e2f34481 | 8358 | oplock_change_type = 0; |
64b39f4a NJ |
8359 | } |
8360 | } else { | |
e2f34481 | 8361 | oplock_change_type = 0; |
64b39f4a | 8362 | } |
e2f34481 NJ |
8363 | |
8364 | switch (oplock_change_type) { | |
8365 | case OPLOCK_WRITE_TO_READ: | |
8366 | ret = opinfo_write_to_read(opinfo); | |
8367 | rsp_oplevel = SMB2_OPLOCK_LEVEL_II; | |
8368 | break; | |
8369 | case OPLOCK_WRITE_TO_NONE: | |
8370 | ret = opinfo_write_to_none(opinfo); | |
8371 | rsp_oplevel = SMB2_OPLOCK_LEVEL_NONE; | |
8372 | break; | |
8373 | case OPLOCK_READ_TO_NONE: | |
8374 | ret = opinfo_read_to_none(opinfo); | |
8375 | rsp_oplevel = SMB2_OPLOCK_LEVEL_NONE; | |
8376 | break; | |
8377 | default: | |
bde1694a NJ |
8378 | pr_err("unknown oplock change 0x%x -> 0x%x\n", |
8379 | opinfo->level, rsp_oplevel); | |
e2f34481 NJ |
8380 | } |
8381 | ||
8382 | if (ret < 0) { | |
8383 | rsp->hdr.Status = err; | |
8384 | goto err_out; | |
8385 | } | |
8386 | ||
e2f34481 NJ |
8387 | opinfo->op_state = OPLOCK_STATE_NONE; |
8388 | wake_up_interruptible_all(&opinfo->oplock_q); | |
c6981347 | 8389 | opinfo_put(opinfo); |
8390 | ksmbd_fd_put(work, fp); | |
e2f34481 NJ |
8391 | |
8392 | rsp->StructureSize = cpu_to_le16(24); | |
8393 | rsp->OplockLevel = rsp_oplevel; | |
8394 | rsp->Reserved = 0; | |
8395 | rsp->Reserved2 = 0; | |
c7803b05 SF |
8396 | rsp->VolatileFid = volatile_id; |
8397 | rsp->PersistentFid = persistent_id; | |
e2b76ab8 NJ |
8398 | ret = ksmbd_iov_pin_rsp(work, rsp, sizeof(struct smb2_oplock_break)); |
8399 | if (!ret) | |
8400 | return; | |
e2f34481 NJ |
8401 | |
8402 | err_out: | |
8403 | opinfo->op_state = OPLOCK_STATE_NONE; | |
8404 | wake_up_interruptible_all(&opinfo->oplock_q); | |
8405 | ||
8406 | opinfo_put(opinfo); | |
8407 | ksmbd_fd_put(work, fp); | |
8408 | smb2_set_err_rsp(work); | |
8409 | } | |
8410 | ||
8411 | static int check_lease_state(struct lease *lease, __le32 req_state) | |
8412 | { | |
8413 | if ((lease->new_state == | |
64b39f4a NJ |
8414 | (SMB2_LEASE_READ_CACHING_LE | SMB2_LEASE_HANDLE_CACHING_LE)) && |
8415 | !(req_state & SMB2_LEASE_WRITE_CACHING_LE)) { | |
e2f34481 NJ |
8416 | lease->new_state = req_state; |
8417 | return 0; | |
8418 | } | |
8419 | ||
8420 | if (lease->new_state == req_state) | |
8421 | return 0; | |
8422 | ||
8423 | return 1; | |
8424 | } | |
8425 | ||
8426 | /** | |
8427 | * smb21_lease_break_ack() - handler for smb2.1 lease break command | |
8428 | * @work: smb work containing lease break command buffer | |
8429 | * | |
8430 | * Return: 0 | |
8431 | */ | |
8432 | static void smb21_lease_break_ack(struct ksmbd_work *work) | |
8433 | { | |
8434 | struct ksmbd_conn *conn = work->conn; | |
7b7d709e NJ |
8435 | struct smb2_lease_ack *req; |
8436 | struct smb2_lease_ack *rsp; | |
e2f34481 NJ |
8437 | struct oplock_info *opinfo; |
8438 | __le32 err = 0; | |
8439 | int ret = 0; | |
8440 | unsigned int lease_change_type; | |
8441 | __le32 lease_state; | |
8442 | struct lease *lease; | |
8443 | ||
7b7d709e NJ |
8444 | WORK_BUFFERS(work, req, rsp); |
8445 | ||
e2f34481 | 8446 | ksmbd_debug(OPLOCK, "smb21 lease break, lease state(0x%x)\n", |
070fb21e | 8447 | le32_to_cpu(req->LeaseState)); |
e2f34481 NJ |
8448 | opinfo = lookup_lease_in_table(conn, req->LeaseKey); |
8449 | if (!opinfo) { | |
8450 | ksmbd_debug(OPLOCK, "file not opened\n"); | |
8451 | smb2_set_err_rsp(work); | |
8452 | rsp->hdr.Status = STATUS_UNSUCCESSFUL; | |
8453 | return; | |
8454 | } | |
8455 | lease = opinfo->o_lease; | |
8456 | ||
8457 | if (opinfo->op_state == OPLOCK_STATE_NONE) { | |
bde1694a NJ |
8458 | pr_err("unexpected lease break state 0x%x\n", |
8459 | opinfo->op_state); | |
e2f34481 NJ |
8460 | rsp->hdr.Status = STATUS_UNSUCCESSFUL; |
8461 | goto err_out; | |
8462 | } | |
8463 | ||
8464 | if (check_lease_state(lease, req->LeaseState)) { | |
8465 | rsp->hdr.Status = STATUS_REQUEST_NOT_ACCEPTED; | |
8466 | ksmbd_debug(OPLOCK, | |
070fb21e NJ |
8467 | "req lease state: 0x%x, expected state: 0x%x\n", |
8468 | req->LeaseState, lease->new_state); | |
e2f34481 NJ |
8469 | goto err_out; |
8470 | } | |
8471 | ||
8472 | if (!atomic_read(&opinfo->breaking_cnt)) { | |
8473 | rsp->hdr.Status = STATUS_UNSUCCESSFUL; | |
8474 | goto err_out; | |
8475 | } | |
8476 | ||
8477 | /* check for bad lease state */ | |
070fb21e NJ |
8478 | if (req->LeaseState & |
8479 | (~(SMB2_LEASE_READ_CACHING_LE | SMB2_LEASE_HANDLE_CACHING_LE))) { | |
e2f34481 NJ |
8480 | err = STATUS_INVALID_OPLOCK_PROTOCOL; |
8481 | if (lease->state & SMB2_LEASE_WRITE_CACHING_LE) | |
8482 | lease_change_type = OPLOCK_WRITE_TO_NONE; | |
8483 | else | |
8484 | lease_change_type = OPLOCK_READ_TO_NONE; | |
8485 | ksmbd_debug(OPLOCK, "handle bad lease state 0x%x -> 0x%x\n", | |
070fb21e NJ |
8486 | le32_to_cpu(lease->state), |
8487 | le32_to_cpu(req->LeaseState)); | |
64b39f4a NJ |
8488 | } else if (lease->state == SMB2_LEASE_READ_CACHING_LE && |
8489 | req->LeaseState != SMB2_LEASE_NONE_LE) { | |
e2f34481 NJ |
8490 | err = STATUS_INVALID_OPLOCK_PROTOCOL; |
8491 | lease_change_type = OPLOCK_READ_TO_NONE; | |
8492 | ksmbd_debug(OPLOCK, "handle bad lease state 0x%x -> 0x%x\n", | |
070fb21e NJ |
8493 | le32_to_cpu(lease->state), |
8494 | le32_to_cpu(req->LeaseState)); | |
e2f34481 NJ |
8495 | } else { |
8496 | /* valid lease state changes */ | |
8497 | err = STATUS_INVALID_DEVICE_STATE; | |
8498 | if (req->LeaseState == SMB2_LEASE_NONE_LE) { | |
8499 | if (lease->state & SMB2_LEASE_WRITE_CACHING_LE) | |
8500 | lease_change_type = OPLOCK_WRITE_TO_NONE; | |
8501 | else | |
8502 | lease_change_type = OPLOCK_READ_TO_NONE; | |
8503 | } else if (req->LeaseState & SMB2_LEASE_READ_CACHING_LE) { | |
8504 | if (lease->state & SMB2_LEASE_WRITE_CACHING_LE) | |
8505 | lease_change_type = OPLOCK_WRITE_TO_READ; | |
8506 | else | |
8507 | lease_change_type = OPLOCK_READ_HANDLE_TO_READ; | |
64b39f4a | 8508 | } else { |
e2f34481 | 8509 | lease_change_type = 0; |
64b39f4a | 8510 | } |
e2f34481 NJ |
8511 | } |
8512 | ||
8513 | switch (lease_change_type) { | |
8514 | case OPLOCK_WRITE_TO_READ: | |
8515 | ret = opinfo_write_to_read(opinfo); | |
8516 | break; | |
8517 | case OPLOCK_READ_HANDLE_TO_READ: | |
8518 | ret = opinfo_read_handle_to_read(opinfo); | |
8519 | break; | |
8520 | case OPLOCK_WRITE_TO_NONE: | |
8521 | ret = opinfo_write_to_none(opinfo); | |
8522 | break; | |
8523 | case OPLOCK_READ_TO_NONE: | |
8524 | ret = opinfo_read_to_none(opinfo); | |
8525 | break; | |
8526 | default: | |
8527 | ksmbd_debug(OPLOCK, "unknown lease change 0x%x -> 0x%x\n", | |
070fb21e NJ |
8528 | le32_to_cpu(lease->state), |
8529 | le32_to_cpu(req->LeaseState)); | |
e2f34481 NJ |
8530 | } |
8531 | ||
658609d9 NJ |
8532 | if (ret < 0) { |
8533 | rsp->hdr.Status = err; | |
8534 | goto err_out; | |
8535 | } | |
8536 | ||
e2f34481 NJ |
8537 | lease_state = lease->state; |
8538 | opinfo->op_state = OPLOCK_STATE_NONE; | |
8539 | wake_up_interruptible_all(&opinfo->oplock_q); | |
8540 | atomic_dec(&opinfo->breaking_cnt); | |
8541 | wake_up_interruptible_all(&opinfo->oplock_brk); | |
8542 | opinfo_put(opinfo); | |
8543 | ||
e2f34481 NJ |
8544 | rsp->StructureSize = cpu_to_le16(36); |
8545 | rsp->Reserved = 0; | |
8546 | rsp->Flags = 0; | |
8547 | memcpy(rsp->LeaseKey, req->LeaseKey, 16); | |
8548 | rsp->LeaseState = lease_state; | |
8549 | rsp->LeaseDuration = 0; | |
e2b76ab8 NJ |
8550 | ret = ksmbd_iov_pin_rsp(work, rsp, sizeof(struct smb2_lease_ack)); |
8551 | if (!ret) | |
8552 | return; | |
e2f34481 NJ |
8553 | |
8554 | err_out: | |
e2f34481 NJ |
8555 | wake_up_interruptible_all(&opinfo->oplock_q); |
8556 | atomic_dec(&opinfo->breaking_cnt); | |
8557 | wake_up_interruptible_all(&opinfo->oplock_brk); | |
8558 | ||
8559 | opinfo_put(opinfo); | |
8560 | smb2_set_err_rsp(work); | |
8561 | } | |
8562 | ||
8563 | /** | |
8564 | * smb2_oplock_break() - dispatcher for smb2.0 and 2.1 oplock/lease break | |
8565 | * @work: smb work containing oplock/lease break command buffer | |
8566 | * | |
8567 | * Return: 0 | |
8568 | */ | |
8569 | int smb2_oplock_break(struct ksmbd_work *work) | |
8570 | { | |
7b7d709e NJ |
8571 | struct smb2_oplock_break *req; |
8572 | struct smb2_oplock_break *rsp; | |
8573 | ||
8574 | WORK_BUFFERS(work, req, rsp); | |
e2f34481 NJ |
8575 | |
8576 | switch (le16_to_cpu(req->StructureSize)) { | |
8577 | case OP_BREAK_STRUCT_SIZE_20: | |
8578 | smb20_oplock_break_ack(work); | |
8579 | break; | |
8580 | case OP_BREAK_STRUCT_SIZE_21: | |
8581 | smb21_lease_break_ack(work); | |
8582 | break; | |
8583 | default: | |
8584 | ksmbd_debug(OPLOCK, "invalid break cmd %d\n", | |
070fb21e | 8585 | le16_to_cpu(req->StructureSize)); |
e2f34481 NJ |
8586 | rsp->hdr.Status = STATUS_INVALID_PARAMETER; |
8587 | smb2_set_err_rsp(work); | |
8588 | } | |
8589 | ||
8590 | return 0; | |
8591 | } | |
8592 | ||
8593 | /** | |
8594 | * smb2_notify() - handler for smb2 notify request | |
95fa1ce9 | 8595 | * @work: smb work containing notify command buffer |
e2f34481 NJ |
8596 | * |
8597 | * Return: 0 | |
8598 | */ | |
8599 | int smb2_notify(struct ksmbd_work *work) | |
8600 | { | |
699230f3 RS |
8601 | struct smb2_change_notify_req *req; |
8602 | struct smb2_change_notify_rsp *rsp; | |
e2f34481 NJ |
8603 | |
8604 | WORK_BUFFERS(work, req, rsp); | |
8605 | ||
8606 | if (work->next_smb2_rcv_hdr_off && req->hdr.NextCommand) { | |
8607 | rsp->hdr.Status = STATUS_INTERNAL_ERROR; | |
8608 | smb2_set_err_rsp(work); | |
8609 | return 0; | |
8610 | } | |
8611 | ||
8612 | smb2_set_err_rsp(work); | |
8613 | rsp->hdr.Status = STATUS_NOT_IMPLEMENTED; | |
8614 | return 0; | |
8615 | } | |
8616 | ||
8617 | /** | |
8618 | * smb2_is_sign_req() - handler for checking packet signing status | |
95fa1ce9 HL |
8619 | * @work: smb work containing notify command buffer |
8620 | * @command: SMB2 command id | |
e2f34481 NJ |
8621 | * |
8622 | * Return: true if packed is signed, false otherwise | |
8623 | */ | |
8624 | bool smb2_is_sign_req(struct ksmbd_work *work, unsigned int command) | |
8625 | { | |
cb451720 | 8626 | struct smb2_hdr *rcv_hdr2 = smb2_get_msg(work->request_buf); |
e2f34481 NJ |
8627 | |
8628 | if ((rcv_hdr2->Flags & SMB2_FLAGS_SIGNED) && | |
64b39f4a NJ |
8629 | command != SMB2_NEGOTIATE_HE && |
8630 | command != SMB2_SESSION_SETUP_HE && | |
8631 | command != SMB2_OPLOCK_BREAK_HE) | |
e2f34481 NJ |
8632 | return true; |
8633 | ||
5616015f | 8634 | return false; |
e2f34481 NJ |
8635 | } |
8636 | ||
8637 | /** | |
8638 | * smb2_check_sign_req() - handler for req packet sign processing | |
8639 | * @work: smb work containing notify command buffer | |
8640 | * | |
8641 | * Return: 1 on success, 0 otherwise | |
8642 | */ | |
8643 | int smb2_check_sign_req(struct ksmbd_work *work) | |
8644 | { | |
cb451720 | 8645 | struct smb2_hdr *hdr; |
e2f34481 NJ |
8646 | char signature_req[SMB2_SIGNATURE_SIZE]; |
8647 | char signature[SMB2_HMACSHA256_SIZE]; | |
8648 | struct kvec iov[1]; | |
8649 | size_t len; | |
8650 | ||
cb451720 | 8651 | hdr = smb2_get_msg(work->request_buf); |
e2f34481 | 8652 | if (work->next_smb2_rcv_hdr_off) |
8a893315 | 8653 | hdr = ksmbd_req_buf_next(work); |
e2f34481 NJ |
8654 | |
8655 | if (!hdr->NextCommand && !work->next_smb2_rcv_hdr_off) | |
cb451720 | 8656 | len = get_rfc1002_len(work->request_buf); |
e2f34481 NJ |
8657 | else if (hdr->NextCommand) |
8658 | len = le32_to_cpu(hdr->NextCommand); | |
8659 | else | |
cb451720 | 8660 | len = get_rfc1002_len(work->request_buf) - |
e2f34481 NJ |
8661 | work->next_smb2_rcv_hdr_off; |
8662 | ||
8663 | memcpy(signature_req, hdr->Signature, SMB2_SIGNATURE_SIZE); | |
8664 | memset(hdr->Signature, 0, SMB2_SIGNATURE_SIZE); | |
8665 | ||
8666 | iov[0].iov_base = (char *)&hdr->ProtocolId; | |
8667 | iov[0].iov_len = len; | |
8668 | ||
8669 | if (ksmbd_sign_smb2_pdu(work->conn, work->sess->sess_key, iov, 1, | |
64b39f4a | 8670 | signature)) |
e2f34481 NJ |
8671 | return 0; |
8672 | ||
8673 | if (memcmp(signature, signature_req, SMB2_SIGNATURE_SIZE)) { | |
bde1694a | 8674 | pr_err("bad smb2 signature\n"); |
e2f34481 NJ |
8675 | return 0; |
8676 | } | |
8677 | ||
8678 | return 1; | |
8679 | } | |
8680 | ||
8681 | /** | |
8682 | * smb2_set_sign_rsp() - handler for rsp packet sign processing | |
8683 | * @work: smb work containing notify command buffer | |
8684 | * | |
8685 | */ | |
8686 | void smb2_set_sign_rsp(struct ksmbd_work *work) | |
8687 | { | |
cb451720 | 8688 | struct smb2_hdr *hdr; |
e2f34481 | 8689 | char signature[SMB2_HMACSHA256_SIZE]; |
e2b76ab8 | 8690 | struct kvec *iov; |
e2f34481 NJ |
8691 | int n_vec = 1; |
8692 | ||
e2b76ab8 | 8693 | hdr = ksmbd_resp_buf_curr(work); |
e2f34481 NJ |
8694 | hdr->Flags |= SMB2_FLAGS_SIGNED; |
8695 | memset(hdr->Signature, 0, SMB2_SIGNATURE_SIZE); | |
8696 | ||
e2b76ab8 NJ |
8697 | if (hdr->Command == SMB2_READ) { |
8698 | iov = &work->iov[work->iov_idx - 1]; | |
e2f34481 | 8699 | n_vec++; |
e2b76ab8 NJ |
8700 | } else { |
8701 | iov = &work->iov[work->iov_idx]; | |
e2f34481 NJ |
8702 | } |
8703 | ||
8704 | if (!ksmbd_sign_smb2_pdu(work->conn, work->sess->sess_key, iov, n_vec, | |
64b39f4a | 8705 | signature)) |
e2f34481 NJ |
8706 | memcpy(hdr->Signature, signature, SMB2_SIGNATURE_SIZE); |
8707 | } | |
8708 | ||
8709 | /** | |
8710 | * smb3_check_sign_req() - handler for req packet sign processing | |
8711 | * @work: smb work containing notify command buffer | |
8712 | * | |
8713 | * Return: 1 on success, 0 otherwise | |
8714 | */ | |
8715 | int smb3_check_sign_req(struct ksmbd_work *work) | |
8716 | { | |
f5a544e3 | 8717 | struct ksmbd_conn *conn = work->conn; |
e2f34481 | 8718 | char *signing_key; |
cb451720 | 8719 | struct smb2_hdr *hdr; |
e2f34481 NJ |
8720 | struct channel *chann; |
8721 | char signature_req[SMB2_SIGNATURE_SIZE]; | |
8722 | char signature[SMB2_CMACAES_SIZE]; | |
8723 | struct kvec iov[1]; | |
8724 | size_t len; | |
8725 | ||
cb451720 | 8726 | hdr = smb2_get_msg(work->request_buf); |
e2f34481 | 8727 | if (work->next_smb2_rcv_hdr_off) |
8a893315 | 8728 | hdr = ksmbd_req_buf_next(work); |
e2f34481 NJ |
8729 | |
8730 | if (!hdr->NextCommand && !work->next_smb2_rcv_hdr_off) | |
cb451720 | 8731 | len = get_rfc1002_len(work->request_buf); |
e2f34481 NJ |
8732 | else if (hdr->NextCommand) |
8733 | len = le32_to_cpu(hdr->NextCommand); | |
8734 | else | |
cb451720 | 8735 | len = get_rfc1002_len(work->request_buf) - |
e2f34481 NJ |
8736 | work->next_smb2_rcv_hdr_off; |
8737 | ||
8738 | if (le16_to_cpu(hdr->Command) == SMB2_SESSION_SETUP_HE) { | |
8739 | signing_key = work->sess->smb3signingkey; | |
e2f34481 | 8740 | } else { |
f5a544e3 | 8741 | chann = lookup_chann_list(work->sess, conn); |
8e06b31e | 8742 | if (!chann) { |
e2f34481 | 8743 | return 0; |
8e06b31e | 8744 | } |
e2f34481 | 8745 | signing_key = chann->smb3signingkey; |
e2f34481 NJ |
8746 | } |
8747 | ||
8748 | if (!signing_key) { | |
bde1694a | 8749 | pr_err("SMB3 signing key is not generated\n"); |
e2f34481 NJ |
8750 | return 0; |
8751 | } | |
8752 | ||
8753 | memcpy(signature_req, hdr->Signature, SMB2_SIGNATURE_SIZE); | |
8754 | memset(hdr->Signature, 0, SMB2_SIGNATURE_SIZE); | |
8755 | iov[0].iov_base = (char *)&hdr->ProtocolId; | |
8756 | iov[0].iov_len = len; | |
8757 | ||
8758 | if (ksmbd_sign_smb3_pdu(conn, signing_key, iov, 1, signature)) | |
8759 | return 0; | |
8760 | ||
8761 | if (memcmp(signature, signature_req, SMB2_SIGNATURE_SIZE)) { | |
bde1694a | 8762 | pr_err("bad smb2 signature\n"); |
e2f34481 NJ |
8763 | return 0; |
8764 | } | |
8765 | ||
8766 | return 1; | |
8767 | } | |
8768 | ||
8769 | /** | |
8770 | * smb3_set_sign_rsp() - handler for rsp packet sign processing | |
8771 | * @work: smb work containing notify command buffer | |
8772 | * | |
8773 | */ | |
8774 | void smb3_set_sign_rsp(struct ksmbd_work *work) | |
8775 | { | |
f5a544e3 | 8776 | struct ksmbd_conn *conn = work->conn; |
e2b76ab8 | 8777 | struct smb2_hdr *hdr; |
e2f34481 NJ |
8778 | struct channel *chann; |
8779 | char signature[SMB2_CMACAES_SIZE]; | |
e2b76ab8 | 8780 | struct kvec *iov; |
e2f34481 | 8781 | int n_vec = 1; |
e2f34481 NJ |
8782 | char *signing_key; |
8783 | ||
e2b76ab8 | 8784 | hdr = ksmbd_resp_buf_curr(work); |
e2f34481 | 8785 | |
08bdbc6e NJ |
8786 | if (conn->binding == false && |
8787 | le16_to_cpu(hdr->Command) == SMB2_SESSION_SETUP_HE) { | |
e2f34481 | 8788 | signing_key = work->sess->smb3signingkey; |
e2f34481 | 8789 | } else { |
f5a544e3 | 8790 | chann = lookup_chann_list(work->sess, work->conn); |
8e06b31e | 8791 | if (!chann) { |
e2f34481 | 8792 | return; |
8e06b31e | 8793 | } |
e2f34481 | 8794 | signing_key = chann->smb3signingkey; |
e2f34481 NJ |
8795 | } |
8796 | ||
8797 | if (!signing_key) | |
8798 | return; | |
8799 | ||
e2f34481 NJ |
8800 | hdr->Flags |= SMB2_FLAGS_SIGNED; |
8801 | memset(hdr->Signature, 0, SMB2_SIGNATURE_SIZE); | |
e2b76ab8 NJ |
8802 | |
8803 | if (hdr->Command == SMB2_READ) { | |
8804 | iov = &work->iov[work->iov_idx - 1]; | |
e2f34481 | 8805 | n_vec++; |
e2b76ab8 NJ |
8806 | } else { |
8807 | iov = &work->iov[work->iov_idx]; | |
e2f34481 NJ |
8808 | } |
8809 | ||
e2b76ab8 NJ |
8810 | if (!ksmbd_sign_smb3_pdu(conn, signing_key, iov, n_vec, |
8811 | signature)) | |
e2f34481 NJ |
8812 | memcpy(hdr->Signature, signature, SMB2_SIGNATURE_SIZE); |
8813 | } | |
8814 | ||
8815 | /** | |
8816 | * smb3_preauth_hash_rsp() - handler for computing preauth hash on response | |
8817 | * @work: smb work containing response buffer | |
8818 | * | |
8819 | */ | |
8820 | void smb3_preauth_hash_rsp(struct ksmbd_work *work) | |
8821 | { | |
8822 | struct ksmbd_conn *conn = work->conn; | |
8823 | struct ksmbd_session *sess = work->sess; | |
8824 | struct smb2_hdr *req, *rsp; | |
8825 | ||
8826 | if (conn->dialect != SMB311_PROT_ID) | |
8827 | return; | |
8828 | ||
8829 | WORK_BUFFERS(work, req, rsp); | |
8830 | ||
442ff9eb NJ |
8831 | if (le16_to_cpu(req->Command) == SMB2_NEGOTIATE_HE && |
8832 | conn->preauth_info) | |
cb451720 | 8833 | ksmbd_gen_preauth_integrity_hash(conn, work->response_buf, |
070fb21e | 8834 | conn->preauth_info->Preauth_HashValue); |
e2f34481 | 8835 | |
f5a544e3 | 8836 | if (le16_to_cpu(rsp->Command) == SMB2_SESSION_SETUP_HE && sess) { |
e2f34481 NJ |
8837 | __u8 *hash_value; |
8838 | ||
f5a544e3 NJ |
8839 | if (conn->binding) { |
8840 | struct preauth_session *preauth_sess; | |
8841 | ||
8842 | preauth_sess = ksmbd_preauth_session_lookup(conn, sess->id); | |
8843 | if (!preauth_sess) | |
8844 | return; | |
8845 | hash_value = preauth_sess->Preauth_HashValue; | |
8846 | } else { | |
8847 | hash_value = sess->Preauth_HashValue; | |
8848 | if (!hash_value) | |
8849 | return; | |
8850 | } | |
cb451720 | 8851 | ksmbd_gen_preauth_integrity_hash(conn, work->response_buf, |
070fb21e | 8852 | hash_value); |
e2f34481 NJ |
8853 | } |
8854 | } | |
8855 | ||
2dd9129f | 8856 | static void fill_transform_hdr(void *tr_buf, char *old_buf, __le16 cipher_type) |
e2f34481 | 8857 | { |
2dd9129f NJ |
8858 | struct smb2_transform_hdr *tr_hdr = tr_buf + 4; |
8859 | struct smb2_hdr *hdr = smb2_get_msg(old_buf); | |
e2f34481 NJ |
8860 | unsigned int orig_len = get_rfc1002_len(old_buf); |
8861 | ||
56b401fb | 8862 | /* tr_buf must be cleared by the caller */ |
e2f34481 NJ |
8863 | tr_hdr->ProtocolId = SMB2_TRANSFORM_PROTO_NUM; |
8864 | tr_hdr->OriginalMessageSize = cpu_to_le32(orig_len); | |
4355a8fd | 8865 | tr_hdr->Flags = cpu_to_le16(TRANSFORM_FLAG_ENCRYPTED); |
5a0ca770 NJ |
8866 | if (cipher_type == SMB2_ENCRYPTION_AES128_GCM || |
8867 | cipher_type == SMB2_ENCRYPTION_AES256_GCM) | |
8868 | get_random_bytes(&tr_hdr->Nonce, SMB3_AES_GCM_NONCE); | |
e2f34481 | 8869 | else |
5a0ca770 | 8870 | get_random_bytes(&tr_hdr->Nonce, SMB3_AES_CCM_NONCE); |
e2f34481 | 8871 | memcpy(&tr_hdr->SessionId, &hdr->SessionId, 8); |
2dd9129f NJ |
8872 | inc_rfc1001_len(tr_buf, sizeof(struct smb2_transform_hdr)); |
8873 | inc_rfc1001_len(tr_buf, orig_len); | |
e2f34481 NJ |
8874 | } |
8875 | ||
8876 | int smb3_encrypt_resp(struct ksmbd_work *work) | |
8877 | { | |
e2b76ab8 | 8878 | struct kvec *iov = work->iov; |
e2f34481 | 8879 | int rc = -ENOMEM; |
e2b76ab8 | 8880 | void *tr_buf; |
e2f34481 | 8881 | |
e2b76ab8 NJ |
8882 | tr_buf = kzalloc(sizeof(struct smb2_transform_hdr) + 4, GFP_KERNEL); |
8883 | if (!tr_buf) | |
e2f34481 NJ |
8884 | return rc; |
8885 | ||
8886 | /* fill transform header */ | |
e2b76ab8 | 8887 | fill_transform_hdr(tr_buf, work->response_buf, work->conn->cipher_type); |
e2f34481 | 8888 | |
e2b76ab8 | 8889 | iov[0].iov_base = tr_buf; |
2dd9129f | 8890 | iov[0].iov_len = sizeof(struct smb2_transform_hdr) + 4; |
e2b76ab8 | 8891 | work->tr_buf = tr_buf; |
e2f34481 | 8892 | |
e2b76ab8 | 8893 | return ksmbd_crypt_message(work, iov, work->iov_idx + 1, 1); |
e2f34481 NJ |
8894 | } |
8895 | ||
f4228b67 | 8896 | bool smb3_is_transform_hdr(void *buf) |
e2f34481 | 8897 | { |
2dd9129f | 8898 | struct smb2_transform_hdr *trhdr = smb2_get_msg(buf); |
e2f34481 NJ |
8899 | |
8900 | return trhdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM; | |
8901 | } | |
8902 | ||
8903 | int smb3_decrypt_req(struct ksmbd_work *work) | |
8904 | { | |
e2f34481 | 8905 | struct ksmbd_session *sess; |
e5066499 | 8906 | char *buf = work->request_buf; |
e2f34481 NJ |
8907 | unsigned int pdu_length = get_rfc1002_len(buf); |
8908 | struct kvec iov[2]; | |
2dd9129f NJ |
8909 | int buf_data_size = pdu_length - sizeof(struct smb2_transform_hdr); |
8910 | struct smb2_transform_hdr *tr_hdr = smb2_get_msg(buf); | |
e2f34481 NJ |
8911 | int rc = 0; |
8912 | ||
dc318846 NJ |
8913 | if (pdu_length < sizeof(struct smb2_transform_hdr) || |
8914 | buf_data_size < sizeof(struct smb2_hdr)) { | |
bde1694a NJ |
8915 | pr_err("Transform message is too small (%u)\n", |
8916 | pdu_length); | |
e2f34481 NJ |
8917 | return -ECONNABORTED; |
8918 | } | |
8919 | ||
c7705eec | 8920 | if (buf_data_size < le32_to_cpu(tr_hdr->OriginalMessageSize)) { |
bde1694a | 8921 | pr_err("Transform message is broken\n"); |
e2f34481 NJ |
8922 | return -ECONNABORTED; |
8923 | } | |
8924 | ||
af705ef2 | 8925 | sess = ksmbd_session_lookup_all(work->conn, le64_to_cpu(tr_hdr->SessionId)); |
4227f811 NJ |
8926 | if (!sess) { |
8927 | pr_err("invalid session id(%llx) in transform header\n", | |
8928 | le64_to_cpu(tr_hdr->SessionId)); | |
8929 | return -ECONNABORTED; | |
8930 | } | |
8931 | ||
e2f34481 | 8932 | iov[0].iov_base = buf; |
2dd9129f NJ |
8933 | iov[0].iov_len = sizeof(struct smb2_transform_hdr) + 4; |
8934 | iov[1].iov_base = buf + sizeof(struct smb2_transform_hdr) + 4; | |
e2f34481 | 8935 | iov[1].iov_len = buf_data_size; |
af705ef2 | 8936 | rc = ksmbd_crypt_message(work, iov, 2, 0); |
e2f34481 NJ |
8937 | if (rc) |
8938 | return rc; | |
8939 | ||
8940 | memmove(buf + 4, iov[1].iov_base, buf_data_size); | |
cb451720 | 8941 | *(__be32 *)buf = cpu_to_be32(buf_data_size); |
e2f34481 NJ |
8942 | |
8943 | return rc; | |
8944 | } | |
8945 | ||
8946 | bool smb3_11_final_sess_setup_resp(struct ksmbd_work *work) | |
8947 | { | |
8948 | struct ksmbd_conn *conn = work->conn; | |
5fde3c21 | 8949 | struct ksmbd_session *sess = work->sess; |
cb451720 | 8950 | struct smb2_hdr *rsp = smb2_get_msg(work->response_buf); |
e2f34481 NJ |
8951 | |
8952 | if (conn->dialect < SMB30_PROT_ID) | |
8953 | return false; | |
8954 | ||
8955 | if (work->next_smb2_rcv_hdr_off) | |
8a893315 | 8956 | rsp = ksmbd_resp_buf_next(work); |
e2f34481 NJ |
8957 | |
8958 | if (le16_to_cpu(rsp->Command) == SMB2_SESSION_SETUP_HE && | |
5fde3c21 | 8959 | sess->user && !user_guest(sess->user) && |
64b39f4a | 8960 | rsp->Status == STATUS_SUCCESS) |
e2f34481 NJ |
8961 | return true; |
8962 | return false; | |
8963 | } |