Commit | Line | Data |
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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
08e0e7c8 | 2 | /* AFS File Server client stubs |
1da177e4 | 3 | * |
08e0e7c8 | 4 | * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved. |
1da177e4 | 5 | * Written by David Howells (dhowells@redhat.com) |
1da177e4 LT |
6 | */ |
7 | ||
8 | #include <linux/init.h> | |
5a0e3ad6 | 9 | #include <linux/slab.h> |
1da177e4 | 10 | #include <linux/sched.h> |
08e0e7c8 | 11 | #include <linux/circ_buf.h> |
a01179e6 | 12 | #include <linux/iversion.h> |
5cbf0398 | 13 | #include <linux/netfs.h> |
1da177e4 | 14 | #include "internal.h" |
08e0e7c8 | 15 | #include "afs_fs.h" |
dd9fbcb8 | 16 | #include "xdr_fs.h" |
c435ee34 | 17 | |
260a9803 DH |
18 | /* |
19 | * decode an AFSFid block | |
20 | */ | |
21 | static void xdr_decode_AFSFid(const __be32 **_bp, struct afs_fid *fid) | |
22 | { | |
23 | const __be32 *bp = *_bp; | |
24 | ||
25 | fid->vid = ntohl(*bp++); | |
26 | fid->vnode = ntohl(*bp++); | |
27 | fid->unique = ntohl(*bp++); | |
28 | *_bp = bp; | |
29 | } | |
30 | ||
888b3384 DH |
31 | /* |
32 | * Dump a bad file status record. | |
33 | */ | |
34 | static void xdr_dump_bad(const __be32 *bp) | |
35 | { | |
36 | __be32 x[4]; | |
37 | int i; | |
38 | ||
39 | pr_notice("AFS XDR: Bad status record\n"); | |
40 | for (i = 0; i < 5 * 4 * 4; i += 16) { | |
41 | memcpy(x, bp, 16); | |
42 | bp += 4; | |
43 | pr_notice("%03x: %08x %08x %08x %08x\n", | |
44 | i, ntohl(x[0]), ntohl(x[1]), ntohl(x[2]), ntohl(x[3])); | |
45 | } | |
46 | ||
47 | memcpy(x, bp, 4); | |
48 | pr_notice("0x50: %08x\n", ntohl(x[0])); | |
49 | } | |
50 | ||
dd9fbcb8 DH |
51 | /* |
52 | * decode an AFSFetchStatus block | |
53 | */ | |
38355eec DH |
54 | static void xdr_decode_AFSFetchStatus(const __be32 **_bp, |
55 | struct afs_call *call, | |
56 | struct afs_status_cb *scb) | |
dd9fbcb8 DH |
57 | { |
58 | const struct afs_xdr_AFSFetchStatus *xdr = (const void *)*_bp; | |
a58823ac | 59 | struct afs_file_status *status = &scb->status; |
684b0f68 | 60 | bool inline_error = (call->operation_ID == afs_FS_InlineBulkStatus); |
260a9803 | 61 | u64 data_version, size; |
dd9fbcb8 | 62 | u32 type, abort_code; |
c435ee34 | 63 | |
684b0f68 DH |
64 | abort_code = ntohl(xdr->abort_code); |
65 | ||
dd9fbcb8 | 66 | if (xdr->if_version != htonl(AFS_FSTATUS_VERSION)) { |
684b0f68 DH |
67 | if (xdr->if_version == htonl(0) && |
68 | abort_code != 0 && | |
69 | inline_error) { | |
70 | /* The OpenAFS fileserver has a bug in FS.InlineBulkStatus | |
71 | * whereby it doesn't set the interface version in the error | |
72 | * case. | |
73 | */ | |
74 | status->abort_code = abort_code; | |
a38a7558 | 75 | scb->have_error = true; |
38355eec | 76 | goto advance; |
684b0f68 DH |
77 | } |
78 | ||
dd9fbcb8 DH |
79 | pr_warn("Unknown AFSFetchStatus version %u\n", ntohl(xdr->if_version)); |
80 | goto bad; | |
81 | } | |
08e0e7c8 | 82 | |
684b0f68 DH |
83 | if (abort_code != 0 && inline_error) { |
84 | status->abort_code = abort_code; | |
3e0d9892 | 85 | scb->have_error = true; |
38355eec | 86 | goto advance; |
684b0f68 DH |
87 | } |
88 | ||
dd9fbcb8 | 89 | type = ntohl(xdr->type); |
dd9fbcb8 | 90 | switch (type) { |
888b3384 DH |
91 | case AFS_FTYPE_FILE: |
92 | case AFS_FTYPE_DIR: | |
93 | case AFS_FTYPE_SYMLINK: | |
dd9fbcb8 | 94 | status->type = type; |
888b3384 | 95 | break; |
888b3384 | 96 | default: |
dd9fbcb8 | 97 | goto bad; |
888b3384 DH |
98 | } |
99 | ||
a58823ac DH |
100 | status->nlink = ntohl(xdr->nlink); |
101 | status->author = ntohl(xdr->author); | |
102 | status->owner = ntohl(xdr->owner); | |
103 | status->caller_access = ntohl(xdr->caller_access); /* Ticket dependent */ | |
104 | status->anon_access = ntohl(xdr->anon_access); | |
105 | status->mode = ntohl(xdr->mode) & S_IALLUGO; | |
106 | status->group = ntohl(xdr->group); | |
107 | status->lock_count = ntohl(xdr->lock_count); | |
dd9fbcb8 | 108 | |
d4936803 DH |
109 | status->mtime_client.tv_sec = ntohl(xdr->mtime_client); |
110 | status->mtime_client.tv_nsec = 0; | |
111 | status->mtime_server.tv_sec = ntohl(xdr->mtime_server); | |
112 | status->mtime_server.tv_nsec = 0; | |
dd9fbcb8 DH |
113 | |
114 | size = (u64)ntohl(xdr->size_lo); | |
115 | size |= (u64)ntohl(xdr->size_hi) << 32; | |
63a4681f | 116 | status->size = size; |
dd9fbcb8 DH |
117 | |
118 | data_version = (u64)ntohl(xdr->data_version_lo); | |
119 | data_version |= (u64)ntohl(xdr->data_version_hi) << 32; | |
a58823ac | 120 | status->data_version = data_version; |
a38a7558 | 121 | scb->have_status = true; |
c72057b5 | 122 | advance: |
dd9fbcb8 | 123 | *_bp = (const void *)*_bp + sizeof(*xdr); |
38355eec | 124 | return; |
dd9fbcb8 DH |
125 | |
126 | bad: | |
127 | xdr_dump_bad(*_bp); | |
7126ead9 | 128 | afs_protocol_error(call, afs_eproto_bad_status); |
c72057b5 | 129 | goto advance; |
c875c76a DH |
130 | } |
131 | ||
78107055 DH |
132 | static time64_t xdr_decode_expiry(struct afs_call *call, u32 expiry) |
133 | { | |
7903192c | 134 | return ktime_divns(call->issue_time, NSEC_PER_SEC) + expiry; |
78107055 DH |
135 | } |
136 | ||
a58823ac DH |
137 | static void xdr_decode_AFSCallBack(const __be32 **_bp, |
138 | struct afs_call *call, | |
139 | struct afs_status_cb *scb) | |
78107055 | 140 | { |
a58823ac | 141 | struct afs_callback *cb = &scb->callback; |
78107055 DH |
142 | const __be32 *bp = *_bp; |
143 | ||
7c712458 | 144 | bp++; /* version */ |
78107055 | 145 | cb->expires_at = xdr_decode_expiry(call, ntohl(*bp++)); |
7c712458 | 146 | bp++; /* type */ |
a58823ac | 147 | scb->have_cb = true; |
78107055 DH |
148 | *_bp = bp; |
149 | } | |
150 | ||
1da177e4 | 151 | /* |
08e0e7c8 | 152 | * decode an AFSVolSync block |
1da177e4 | 153 | */ |
08e0e7c8 DH |
154 | static void xdr_decode_AFSVolSync(const __be32 **_bp, |
155 | struct afs_volsync *volsync) | |
1da177e4 | 156 | { |
08e0e7c8 | 157 | const __be32 *bp = *_bp; |
30062bd1 | 158 | u32 creation; |
1da177e4 | 159 | |
30062bd1 | 160 | creation = ntohl(*bp++); |
08e0e7c8 DH |
161 | bp++; /* spare2 */ |
162 | bp++; /* spare3 */ | |
163 | bp++; /* spare4 */ | |
164 | bp++; /* spare5 */ | |
165 | bp++; /* spare6 */ | |
166 | *_bp = bp; | |
30062bd1 DH |
167 | |
168 | if (volsync) | |
169 | volsync->creation = creation; | |
08e0e7c8 | 170 | } |
1da177e4 | 171 | |
31143d5d DH |
172 | /* |
173 | * encode the requested attributes into an AFSStoreStatus block | |
174 | */ | |
175 | static void xdr_encode_AFS_StoreStatus(__be32 **_bp, struct iattr *attr) | |
176 | { | |
177 | __be32 *bp = *_bp; | |
178 | u32 mask = 0, mtime = 0, owner = 0, group = 0, mode = 0; | |
179 | ||
180 | mask = 0; | |
181 | if (attr->ia_valid & ATTR_MTIME) { | |
182 | mask |= AFS_SET_MTIME; | |
183 | mtime = attr->ia_mtime.tv_sec; | |
184 | } | |
185 | ||
186 | if (attr->ia_valid & ATTR_UID) { | |
187 | mask |= AFS_SET_OWNER; | |
a0a5386a | 188 | owner = from_kuid(&init_user_ns, attr->ia_uid); |
31143d5d DH |
189 | } |
190 | ||
191 | if (attr->ia_valid & ATTR_GID) { | |
192 | mask |= AFS_SET_GROUP; | |
a0a5386a | 193 | group = from_kgid(&init_user_ns, attr->ia_gid); |
31143d5d DH |
194 | } |
195 | ||
196 | if (attr->ia_valid & ATTR_MODE) { | |
197 | mask |= AFS_SET_MODE; | |
198 | mode = attr->ia_mode & S_IALLUGO; | |
199 | } | |
200 | ||
201 | *bp++ = htonl(mask); | |
202 | *bp++ = htonl(mtime); | |
203 | *bp++ = htonl(owner); | |
204 | *bp++ = htonl(group); | |
205 | *bp++ = htonl(mode); | |
206 | *bp++ = 0; /* segment size */ | |
207 | *_bp = bp; | |
208 | } | |
209 | ||
45222b9e DH |
210 | /* |
211 | * decode an AFSFetchVolumeStatus block | |
212 | */ | |
213 | static void xdr_decode_AFSFetchVolumeStatus(const __be32 **_bp, | |
214 | struct afs_volume_status *vs) | |
215 | { | |
216 | const __be32 *bp = *_bp; | |
217 | ||
218 | vs->vid = ntohl(*bp++); | |
219 | vs->parent_id = ntohl(*bp++); | |
220 | vs->online = ntohl(*bp++); | |
221 | vs->in_service = ntohl(*bp++); | |
222 | vs->blessed = ntohl(*bp++); | |
223 | vs->needs_salvage = ntohl(*bp++); | |
224 | vs->type = ntohl(*bp++); | |
225 | vs->min_quota = ntohl(*bp++); | |
226 | vs->max_quota = ntohl(*bp++); | |
227 | vs->blocks_in_use = ntohl(*bp++); | |
228 | vs->part_blocks_avail = ntohl(*bp++); | |
229 | vs->part_max_blocks = ntohl(*bp++); | |
30062bd1 DH |
230 | vs->vol_copy_date = 0; |
231 | vs->vol_backup_date = 0; | |
45222b9e DH |
232 | *_bp = bp; |
233 | } | |
234 | ||
08e0e7c8 DH |
235 | /* |
236 | * deliver reply data to an FS.FetchStatus | |
237 | */ | |
e49c7b2f | 238 | static int afs_deliver_fs_fetch_status(struct afs_call *call) |
08e0e7c8 | 239 | { |
e49c7b2f DH |
240 | struct afs_operation *op = call->op; |
241 | struct afs_vnode_param *vp = &op->file[op->fetch_status.which]; | |
08e0e7c8 | 242 | const __be32 *bp; |
372ee163 | 243 | int ret; |
1da177e4 | 244 | |
d001648e | 245 | ret = afs_transfer_reply(call); |
372ee163 DH |
246 | if (ret < 0) |
247 | return ret; | |
1da177e4 | 248 | |
08e0e7c8 DH |
249 | /* unmarshall the reply once we've received all of it */ |
250 | bp = call->buffer; | |
e49c7b2f DH |
251 | xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); |
252 | xdr_decode_AFSCallBack(&bp, call, &vp->scb); | |
253 | xdr_decode_AFSVolSync(&bp, &op->volsync); | |
1da177e4 | 254 | |
08e0e7c8 DH |
255 | _leave(" = 0 [done]"); |
256 | return 0; | |
ec26815a | 257 | } |
08e0e7c8 DH |
258 | |
259 | /* | |
260 | * FS.FetchStatus operation type | |
261 | */ | |
e49c7b2f DH |
262 | static const struct afs_call_type afs_RXFSFetchStatus = { |
263 | .name = "FS.FetchStatus", | |
025db80c | 264 | .op = afs_FS_FetchStatus, |
e49c7b2f | 265 | .deliver = afs_deliver_fs_fetch_status, |
08e0e7c8 DH |
266 | .destructor = afs_flat_call_destructor, |
267 | }; | |
1da177e4 | 268 | |
1da177e4 LT |
269 | /* |
270 | * fetch the status information for a file | |
271 | */ | |
e49c7b2f | 272 | void afs_fs_fetch_status(struct afs_operation *op) |
1da177e4 | 273 | { |
e49c7b2f | 274 | struct afs_vnode_param *vp = &op->file[op->fetch_status.which]; |
08e0e7c8 | 275 | struct afs_call *call; |
1da177e4 LT |
276 | __be32 *bp; |
277 | ||
3b6492df | 278 | _enter(",%x,{%llx:%llu},,", |
e49c7b2f | 279 | key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
1da177e4 | 280 | |
e49c7b2f | 281 | call = afs_alloc_flat_call(op->net, &afs_RXFSFetchStatus, |
5cf9dd55 | 282 | 16, (21 + 3 + 6) * 4); |
e49c7b2f DH |
283 | if (!call) |
284 | return afs_op_nomem(op); | |
1da177e4 LT |
285 | |
286 | /* marshall the parameters */ | |
08e0e7c8 | 287 | bp = call->request; |
1da177e4 | 288 | bp[0] = htonl(FSFETCHSTATUS); |
e49c7b2f DH |
289 | bp[1] = htonl(vp->fid.vid); |
290 | bp[2] = htonl(vp->fid.vnode); | |
291 | bp[3] = htonl(vp->fid.unique); | |
1da177e4 | 292 | |
abcbd3bf | 293 | call->fid = vp->fid; |
e49c7b2f DH |
294 | trace_afs_make_fs_call(call, &vp->fid); |
295 | afs_make_op_call(op, call, GFP_NOFS); | |
ec26815a | 296 | } |
1da177e4 | 297 | |
1da177e4 | 298 | /* |
08e0e7c8 | 299 | * deliver reply data to an FS.FetchData |
1da177e4 | 300 | */ |
d001648e | 301 | static int afs_deliver_fs_fetch_data(struct afs_call *call) |
1da177e4 | 302 | { |
e49c7b2f DH |
303 | struct afs_operation *op = call->op; |
304 | struct afs_vnode_param *vp = &op->file[0]; | |
305 | struct afs_read *req = op->fetch.req; | |
08e0e7c8 | 306 | const __be32 *bp; |
1da177e4 | 307 | int ret; |
1da177e4 | 308 | |
f105da1a DH |
309 | _enter("{%u,%zu,%zu/%llu}", |
310 | call->unmarshall, call->iov_len, iov_iter_count(call->iter), | |
311 | req->actual_len); | |
08e0e7c8 DH |
312 | |
313 | switch (call->unmarshall) { | |
314 | case 0: | |
196ee9cd | 315 | req->actual_len = 0; |
08e0e7c8 | 316 | call->unmarshall++; |
12bdcf33 DH |
317 | if (call->operation_ID == FSFETCHDATA64) { |
318 | afs_extract_to_tmp64(call); | |
319 | } else { | |
320 | call->tmp_u = htonl(0); | |
321 | afs_extract_to_tmp(call); | |
b9b1f8d5 | 322 | } |
df561f66 | 323 | fallthrough; |
08e0e7c8 | 324 | |
c4508464 DH |
325 | /* Extract the returned data length into |
326 | * ->actual_len. This may indicate more or less data than was | |
327 | * requested will be returned. | |
328 | */ | |
12bdcf33 | 329 | case 1: |
08e0e7c8 | 330 | _debug("extract data length"); |
12bdcf33 | 331 | ret = afs_extract_data(call, true); |
372ee163 DH |
332 | if (ret < 0) |
333 | return ret; | |
1da177e4 | 334 | |
12bdcf33 | 335 | req->actual_len = be64_to_cpu(call->tmp64); |
196ee9cd | 336 | _debug("DATA length: %llu", req->actual_len); |
c4508464 DH |
337 | |
338 | if (req->actual_len == 0) | |
196ee9cd | 339 | goto no_more_data; |
12bdcf33 | 340 | |
c4508464 DH |
341 | call->iter = req->iter; |
342 | call->iov_len = min(req->actual_len, req->len); | |
08e0e7c8 | 343 | call->unmarshall++; |
df561f66 | 344 | fallthrough; |
196ee9cd | 345 | |
29881608 | 346 | /* extract the returned data */ |
12bdcf33 DH |
347 | case 2: |
348 | _debug("extract data %zu/%llu", | |
c4508464 | 349 | iov_iter_count(call->iter), req->actual_len); |
196ee9cd | 350 | |
12bdcf33 | 351 | ret = afs_extract_data(call, true); |
196ee9cd DH |
352 | if (ret < 0) |
353 | return ret; | |
12bdcf33 | 354 | |
c4508464 | 355 | call->iter = &call->def_iter; |
12bdcf33 DH |
356 | if (req->actual_len <= req->len) |
357 | goto no_more_data; | |
6db3ac3c DH |
358 | |
359 | /* Discard any excess data the server gave us */ | |
23a28913 | 360 | afs_extract_discard(call, req->actual_len - req->len); |
12bdcf33 | 361 | call->unmarshall = 3; |
df561f66 | 362 | fallthrough; |
29881608 | 363 | |
12bdcf33 DH |
364 | case 3: |
365 | _debug("extract discard %zu/%llu", | |
fc276122 | 366 | iov_iter_count(call->iter), req->actual_len - req->len); |
12bdcf33 DH |
367 | |
368 | ret = afs_extract_data(call, true); | |
6db3ac3c DH |
369 | if (ret < 0) |
370 | return ret; | |
1da177e4 | 371 | |
196ee9cd | 372 | no_more_data: |
12bdcf33 DH |
373 | call->unmarshall = 4; |
374 | afs_extract_to_buf(call, (21 + 3 + 6) * 4); | |
df561f66 | 375 | fallthrough; |
1da177e4 | 376 | |
29881608 | 377 | /* extract the metadata */ |
12bdcf33 DH |
378 | case 4: |
379 | ret = afs_extract_data(call, false); | |
372ee163 DH |
380 | if (ret < 0) |
381 | return ret; | |
08e0e7c8 DH |
382 | |
383 | bp = call->buffer; | |
e49c7b2f DH |
384 | xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); |
385 | xdr_decode_AFSCallBack(&bp, call, &vp->scb); | |
386 | xdr_decode_AFSVolSync(&bp, &op->volsync); | |
08e0e7c8 | 387 | |
e49c7b2f DH |
388 | req->data_version = vp->scb.status.data_version; |
389 | req->file_size = vp->scb.status.size; | |
a58823ac | 390 | |
08e0e7c8 | 391 | call->unmarshall++; |
b2db6c35 | 392 | fallthrough; |
1da177e4 | 393 | |
12bdcf33 | 394 | case 5: |
08e0e7c8 | 395 | break; |
1da177e4 LT |
396 | } |
397 | ||
08e0e7c8 DH |
398 | _leave(" = 0 [done]"); |
399 | return 0; | |
ec26815a | 400 | } |
1da177e4 | 401 | |
1da177e4 | 402 | /* |
08e0e7c8 | 403 | * FS.FetchData operation type |
1da177e4 | 404 | */ |
08e0e7c8 | 405 | static const struct afs_call_type afs_RXFSFetchData = { |
00d3b7a4 | 406 | .name = "FS.FetchData", |
025db80c | 407 | .op = afs_FS_FetchData, |
08e0e7c8 | 408 | .deliver = afs_deliver_fs_fetch_data, |
e49c7b2f | 409 | .destructor = afs_flat_call_destructor, |
08e0e7c8 DH |
410 | }; |
411 | ||
b9b1f8d5 DH |
412 | static const struct afs_call_type afs_RXFSFetchData64 = { |
413 | .name = "FS.FetchData64", | |
025db80c | 414 | .op = afs_FS_FetchData64, |
b9b1f8d5 | 415 | .deliver = afs_deliver_fs_fetch_data, |
e49c7b2f | 416 | .destructor = afs_flat_call_destructor, |
b9b1f8d5 DH |
417 | }; |
418 | ||
419 | /* | |
420 | * fetch data from a very large file | |
421 | */ | |
e49c7b2f | 422 | static void afs_fs_fetch_data64(struct afs_operation *op) |
b9b1f8d5 | 423 | { |
e49c7b2f DH |
424 | struct afs_vnode_param *vp = &op->file[0]; |
425 | struct afs_read *req = op->fetch.req; | |
b9b1f8d5 DH |
426 | struct afs_call *call; |
427 | __be32 *bp; | |
428 | ||
429 | _enter(""); | |
430 | ||
e49c7b2f | 431 | call = afs_alloc_flat_call(op->net, &afs_RXFSFetchData64, 32, (21 + 3 + 6) * 4); |
b9b1f8d5 | 432 | if (!call) |
e49c7b2f | 433 | return afs_op_nomem(op); |
b9b1f8d5 DH |
434 | |
435 | /* marshall the parameters */ | |
436 | bp = call->request; | |
437 | bp[0] = htonl(FSFETCHDATA64); | |
e49c7b2f DH |
438 | bp[1] = htonl(vp->fid.vid); |
439 | bp[2] = htonl(vp->fid.vnode); | |
440 | bp[3] = htonl(vp->fid.unique); | |
196ee9cd DH |
441 | bp[4] = htonl(upper_32_bits(req->pos)); |
442 | bp[5] = htonl(lower_32_bits(req->pos)); | |
b9b1f8d5 | 443 | bp[6] = 0; |
196ee9cd | 444 | bp[7] = htonl(lower_32_bits(req->len)); |
b9b1f8d5 | 445 | |
abcbd3bf | 446 | call->fid = vp->fid; |
e49c7b2f DH |
447 | trace_afs_make_fs_call(call, &vp->fid); |
448 | afs_make_op_call(op, call, GFP_NOFS); | |
b9b1f8d5 DH |
449 | } |
450 | ||
08e0e7c8 DH |
451 | /* |
452 | * fetch data from a file | |
453 | */ | |
e49c7b2f | 454 | void afs_fs_fetch_data(struct afs_operation *op) |
1da177e4 | 455 | { |
e49c7b2f | 456 | struct afs_vnode_param *vp = &op->file[0]; |
08e0e7c8 | 457 | struct afs_call *call; |
e49c7b2f | 458 | struct afs_read *req = op->fetch.req; |
1da177e4 LT |
459 | __be32 *bp; |
460 | ||
b537a3c2 | 461 | if (test_bit(AFS_SERVER_FL_HAS_FS64, &op->server->flags)) |
e49c7b2f | 462 | return afs_fs_fetch_data64(op); |
b9b1f8d5 | 463 | |
08e0e7c8 | 464 | _enter(""); |
1da177e4 | 465 | |
e49c7b2f | 466 | call = afs_alloc_flat_call(op->net, &afs_RXFSFetchData, 24, (21 + 3 + 6) * 4); |
08e0e7c8 | 467 | if (!call) |
e49c7b2f | 468 | return afs_op_nomem(op); |
1da177e4 | 469 | |
c4508464 DH |
470 | req->call_debug_id = call->debug_id; |
471 | ||
1da177e4 | 472 | /* marshall the parameters */ |
08e0e7c8 DH |
473 | bp = call->request; |
474 | bp[0] = htonl(FSFETCHDATA); | |
e49c7b2f DH |
475 | bp[1] = htonl(vp->fid.vid); |
476 | bp[2] = htonl(vp->fid.vnode); | |
477 | bp[3] = htonl(vp->fid.unique); | |
196ee9cd DH |
478 | bp[4] = htonl(lower_32_bits(req->pos)); |
479 | bp[5] = htonl(lower_32_bits(req->len)); | |
1da177e4 | 480 | |
abcbd3bf | 481 | call->fid = vp->fid; |
e49c7b2f DH |
482 | trace_afs_make_fs_call(call, &vp->fid); |
483 | afs_make_op_call(op, call, GFP_NOFS); | |
ec26815a | 484 | } |
260a9803 DH |
485 | |
486 | /* | |
487 | * deliver reply data to an FS.CreateFile or an FS.MakeDir | |
488 | */ | |
d001648e | 489 | static int afs_deliver_fs_create_vnode(struct afs_call *call) |
260a9803 | 490 | { |
e49c7b2f DH |
491 | struct afs_operation *op = call->op; |
492 | struct afs_vnode_param *dvp = &op->file[0]; | |
493 | struct afs_vnode_param *vp = &op->file[1]; | |
260a9803 | 494 | const __be32 *bp; |
372ee163 | 495 | int ret; |
260a9803 | 496 | |
d001648e | 497 | ret = afs_transfer_reply(call); |
372ee163 DH |
498 | if (ret < 0) |
499 | return ret; | |
260a9803 DH |
500 | |
501 | /* unmarshall the reply once we've received all of it */ | |
502 | bp = call->buffer; | |
e49c7b2f DH |
503 | xdr_decode_AFSFid(&bp, &op->file[1].fid); |
504 | xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); | |
505 | xdr_decode_AFSFetchStatus(&bp, call, &dvp->scb); | |
506 | xdr_decode_AFSCallBack(&bp, call, &vp->scb); | |
507 | xdr_decode_AFSVolSync(&bp, &op->volsync); | |
260a9803 DH |
508 | |
509 | _leave(" = 0 [done]"); | |
510 | return 0; | |
511 | } | |
512 | ||
513 | /* | |
514 | * FS.CreateFile and FS.MakeDir operation type | |
515 | */ | |
025db80c DH |
516 | static const struct afs_call_type afs_RXFSCreateFile = { |
517 | .name = "FS.CreateFile", | |
518 | .op = afs_FS_CreateFile, | |
519 | .deliver = afs_deliver_fs_create_vnode, | |
520 | .destructor = afs_flat_call_destructor, | |
521 | }; | |
522 | ||
e49c7b2f DH |
523 | /* |
524 | * Create a file. | |
525 | */ | |
526 | void afs_fs_create_file(struct afs_operation *op) | |
527 | { | |
528 | const struct qstr *name = &op->dentry->d_name; | |
529 | struct afs_vnode_param *dvp = &op->file[0]; | |
530 | struct afs_call *call; | |
531 | size_t namesz, reqsz, padsz; | |
532 | __be32 *bp; | |
533 | ||
534 | _enter(""); | |
535 | ||
536 | namesz = name->len; | |
537 | padsz = (4 - (namesz & 3)) & 3; | |
538 | reqsz = (5 * 4) + namesz + padsz + (6 * 4); | |
539 | ||
540 | call = afs_alloc_flat_call(op->net, &afs_RXFSCreateFile, | |
541 | reqsz, (3 + 21 + 21 + 3 + 6) * 4); | |
542 | if (!call) | |
543 | return afs_op_nomem(op); | |
544 | ||
545 | /* marshall the parameters */ | |
546 | bp = call->request; | |
547 | *bp++ = htonl(FSCREATEFILE); | |
548 | *bp++ = htonl(dvp->fid.vid); | |
549 | *bp++ = htonl(dvp->fid.vnode); | |
550 | *bp++ = htonl(dvp->fid.unique); | |
551 | *bp++ = htonl(namesz); | |
552 | memcpy(bp, name->name, namesz); | |
553 | bp = (void *) bp + namesz; | |
554 | if (padsz > 0) { | |
555 | memset(bp, 0, padsz); | |
556 | bp = (void *) bp + padsz; | |
557 | } | |
558 | *bp++ = htonl(AFS_SET_MODE | AFS_SET_MTIME); | |
559 | *bp++ = htonl(op->mtime.tv_sec); /* mtime */ | |
560 | *bp++ = 0; /* owner */ | |
561 | *bp++ = 0; /* group */ | |
562 | *bp++ = htonl(op->create.mode & S_IALLUGO); /* unix mode */ | |
563 | *bp++ = 0; /* segment size */ | |
564 | ||
abcbd3bf | 565 | call->fid = dvp->fid; |
e49c7b2f DH |
566 | trace_afs_make_fs_call1(call, &dvp->fid, name); |
567 | afs_make_op_call(op, call, GFP_NOFS); | |
568 | } | |
569 | ||
025db80c DH |
570 | static const struct afs_call_type afs_RXFSMakeDir = { |
571 | .name = "FS.MakeDir", | |
572 | .op = afs_FS_MakeDir, | |
260a9803 | 573 | .deliver = afs_deliver_fs_create_vnode, |
260a9803 DH |
574 | .destructor = afs_flat_call_destructor, |
575 | }; | |
576 | ||
577 | /* | |
e49c7b2f | 578 | * Create a new directory |
260a9803 | 579 | */ |
e49c7b2f | 580 | void afs_fs_make_dir(struct afs_operation *op) |
260a9803 | 581 | { |
e49c7b2f DH |
582 | const struct qstr *name = &op->dentry->d_name; |
583 | struct afs_vnode_param *dvp = &op->file[0]; | |
260a9803 DH |
584 | struct afs_call *call; |
585 | size_t namesz, reqsz, padsz; | |
586 | __be32 *bp; | |
587 | ||
588 | _enter(""); | |
589 | ||
e49c7b2f | 590 | namesz = name->len; |
260a9803 DH |
591 | padsz = (4 - (namesz & 3)) & 3; |
592 | reqsz = (5 * 4) + namesz + padsz + (6 * 4); | |
593 | ||
e49c7b2f DH |
594 | call = afs_alloc_flat_call(op->net, &afs_RXFSMakeDir, |
595 | reqsz, (3 + 21 + 21 + 3 + 6) * 4); | |
260a9803 | 596 | if (!call) |
e49c7b2f | 597 | return afs_op_nomem(op); |
260a9803 DH |
598 | |
599 | /* marshall the parameters */ | |
600 | bp = call->request; | |
e49c7b2f DH |
601 | *bp++ = htonl(FSMAKEDIR); |
602 | *bp++ = htonl(dvp->fid.vid); | |
603 | *bp++ = htonl(dvp->fid.vnode); | |
604 | *bp++ = htonl(dvp->fid.unique); | |
260a9803 | 605 | *bp++ = htonl(namesz); |
e49c7b2f | 606 | memcpy(bp, name->name, namesz); |
260a9803 DH |
607 | bp = (void *) bp + namesz; |
608 | if (padsz > 0) { | |
609 | memset(bp, 0, padsz); | |
610 | bp = (void *) bp + padsz; | |
611 | } | |
ab94f5d0 | 612 | *bp++ = htonl(AFS_SET_MODE | AFS_SET_MTIME); |
e49c7b2f | 613 | *bp++ = htonl(op->mtime.tv_sec); /* mtime */ |
260a9803 DH |
614 | *bp++ = 0; /* owner */ |
615 | *bp++ = 0; /* group */ | |
e49c7b2f | 616 | *bp++ = htonl(op->create.mode & S_IALLUGO); /* unix mode */ |
260a9803 DH |
617 | *bp++ = 0; /* segment size */ |
618 | ||
abcbd3bf | 619 | call->fid = dvp->fid; |
e49c7b2f DH |
620 | trace_afs_make_fs_call1(call, &dvp->fid, name); |
621 | afs_make_op_call(op, call, GFP_NOFS); | |
260a9803 DH |
622 | } |
623 | ||
624 | /* | |
e49c7b2f | 625 | * Deliver reply data to any operation that returns status and volume sync. |
260a9803 | 626 | */ |
e49c7b2f | 627 | static int afs_deliver_fs_file_status_and_vol(struct afs_call *call) |
260a9803 | 628 | { |
e49c7b2f DH |
629 | struct afs_operation *op = call->op; |
630 | struct afs_vnode_param *vp = &op->file[0]; | |
260a9803 | 631 | const __be32 *bp; |
372ee163 | 632 | int ret; |
260a9803 | 633 | |
d001648e | 634 | ret = afs_transfer_reply(call); |
372ee163 DH |
635 | if (ret < 0) |
636 | return ret; | |
260a9803 DH |
637 | |
638 | /* unmarshall the reply once we've received all of it */ | |
639 | bp = call->buffer; | |
e49c7b2f DH |
640 | xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); |
641 | xdr_decode_AFSVolSync(&bp, &op->volsync); | |
260a9803 DH |
642 | |
643 | _leave(" = 0 [done]"); | |
644 | return 0; | |
645 | } | |
646 | ||
647 | /* | |
e49c7b2f | 648 | * FS.RemoveFile operation type |
260a9803 | 649 | */ |
025db80c DH |
650 | static const struct afs_call_type afs_RXFSRemoveFile = { |
651 | .name = "FS.RemoveFile", | |
652 | .op = afs_FS_RemoveFile, | |
e49c7b2f | 653 | .deliver = afs_deliver_fs_file_status_and_vol, |
025db80c DH |
654 | .destructor = afs_flat_call_destructor, |
655 | }; | |
656 | ||
e49c7b2f DH |
657 | /* |
658 | * Remove a file. | |
659 | */ | |
660 | void afs_fs_remove_file(struct afs_operation *op) | |
661 | { | |
662 | const struct qstr *name = &op->dentry->d_name; | |
663 | struct afs_vnode_param *dvp = &op->file[0]; | |
664 | struct afs_call *call; | |
665 | size_t namesz, reqsz, padsz; | |
666 | __be32 *bp; | |
667 | ||
668 | _enter(""); | |
669 | ||
670 | namesz = name->len; | |
671 | padsz = (4 - (namesz & 3)) & 3; | |
672 | reqsz = (5 * 4) + namesz + padsz; | |
673 | ||
674 | call = afs_alloc_flat_call(op->net, &afs_RXFSRemoveFile, | |
675 | reqsz, (21 + 6) * 4); | |
676 | if (!call) | |
677 | return afs_op_nomem(op); | |
678 | ||
679 | /* marshall the parameters */ | |
680 | bp = call->request; | |
681 | *bp++ = htonl(FSREMOVEFILE); | |
682 | *bp++ = htonl(dvp->fid.vid); | |
683 | *bp++ = htonl(dvp->fid.vnode); | |
684 | *bp++ = htonl(dvp->fid.unique); | |
685 | *bp++ = htonl(namesz); | |
686 | memcpy(bp, name->name, namesz); | |
687 | bp = (void *) bp + namesz; | |
688 | if (padsz > 0) { | |
689 | memset(bp, 0, padsz); | |
690 | bp = (void *) bp + padsz; | |
691 | } | |
692 | ||
abcbd3bf | 693 | call->fid = dvp->fid; |
e49c7b2f DH |
694 | trace_afs_make_fs_call1(call, &dvp->fid, name); |
695 | afs_make_op_call(op, call, GFP_NOFS); | |
696 | } | |
697 | ||
025db80c DH |
698 | static const struct afs_call_type afs_RXFSRemoveDir = { |
699 | .name = "FS.RemoveDir", | |
700 | .op = afs_FS_RemoveDir, | |
e49c7b2f | 701 | .deliver = afs_deliver_fs_file_status_and_vol, |
260a9803 DH |
702 | .destructor = afs_flat_call_destructor, |
703 | }; | |
704 | ||
705 | /* | |
e49c7b2f | 706 | * Remove a directory. |
260a9803 | 707 | */ |
e49c7b2f | 708 | void afs_fs_remove_dir(struct afs_operation *op) |
260a9803 | 709 | { |
e49c7b2f DH |
710 | const struct qstr *name = &op->dentry->d_name; |
711 | struct afs_vnode_param *dvp = &op->file[0]; | |
260a9803 DH |
712 | struct afs_call *call; |
713 | size_t namesz, reqsz, padsz; | |
714 | __be32 *bp; | |
715 | ||
716 | _enter(""); | |
717 | ||
e49c7b2f | 718 | namesz = name->len; |
260a9803 DH |
719 | padsz = (4 - (namesz & 3)) & 3; |
720 | reqsz = (5 * 4) + namesz + padsz; | |
721 | ||
e49c7b2f DH |
722 | call = afs_alloc_flat_call(op->net, &afs_RXFSRemoveDir, |
723 | reqsz, (21 + 6) * 4); | |
260a9803 | 724 | if (!call) |
e49c7b2f | 725 | return afs_op_nomem(op); |
260a9803 DH |
726 | |
727 | /* marshall the parameters */ | |
728 | bp = call->request; | |
e49c7b2f DH |
729 | *bp++ = htonl(FSREMOVEDIR); |
730 | *bp++ = htonl(dvp->fid.vid); | |
731 | *bp++ = htonl(dvp->fid.vnode); | |
732 | *bp++ = htonl(dvp->fid.unique); | |
260a9803 | 733 | *bp++ = htonl(namesz); |
e49c7b2f | 734 | memcpy(bp, name->name, namesz); |
260a9803 DH |
735 | bp = (void *) bp + namesz; |
736 | if (padsz > 0) { | |
737 | memset(bp, 0, padsz); | |
738 | bp = (void *) bp + padsz; | |
739 | } | |
740 | ||
abcbd3bf | 741 | call->fid = dvp->fid; |
e49c7b2f DH |
742 | trace_afs_make_fs_call1(call, &dvp->fid, name); |
743 | afs_make_op_call(op, call, GFP_NOFS); | |
260a9803 DH |
744 | } |
745 | ||
746 | /* | |
747 | * deliver reply data to an FS.Link | |
748 | */ | |
d001648e | 749 | static int afs_deliver_fs_link(struct afs_call *call) |
260a9803 | 750 | { |
e49c7b2f DH |
751 | struct afs_operation *op = call->op; |
752 | struct afs_vnode_param *dvp = &op->file[0]; | |
753 | struct afs_vnode_param *vp = &op->file[1]; | |
260a9803 | 754 | const __be32 *bp; |
372ee163 | 755 | int ret; |
260a9803 | 756 | |
d001648e | 757 | _enter("{%u}", call->unmarshall); |
260a9803 | 758 | |
d001648e | 759 | ret = afs_transfer_reply(call); |
372ee163 DH |
760 | if (ret < 0) |
761 | return ret; | |
260a9803 DH |
762 | |
763 | /* unmarshall the reply once we've received all of it */ | |
764 | bp = call->buffer; | |
e49c7b2f DH |
765 | xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); |
766 | xdr_decode_AFSFetchStatus(&bp, call, &dvp->scb); | |
767 | xdr_decode_AFSVolSync(&bp, &op->volsync); | |
260a9803 DH |
768 | |
769 | _leave(" = 0 [done]"); | |
770 | return 0; | |
771 | } | |
772 | ||
773 | /* | |
774 | * FS.Link operation type | |
775 | */ | |
776 | static const struct afs_call_type afs_RXFSLink = { | |
777 | .name = "FS.Link", | |
025db80c | 778 | .op = afs_FS_Link, |
260a9803 | 779 | .deliver = afs_deliver_fs_link, |
260a9803 DH |
780 | .destructor = afs_flat_call_destructor, |
781 | }; | |
782 | ||
783 | /* | |
784 | * make a hard link | |
785 | */ | |
e49c7b2f | 786 | void afs_fs_link(struct afs_operation *op) |
260a9803 | 787 | { |
e49c7b2f DH |
788 | const struct qstr *name = &op->dentry->d_name; |
789 | struct afs_vnode_param *dvp = &op->file[0]; | |
790 | struct afs_vnode_param *vp = &op->file[1]; | |
260a9803 DH |
791 | struct afs_call *call; |
792 | size_t namesz, reqsz, padsz; | |
793 | __be32 *bp; | |
794 | ||
795 | _enter(""); | |
796 | ||
e49c7b2f | 797 | namesz = name->len; |
260a9803 DH |
798 | padsz = (4 - (namesz & 3)) & 3; |
799 | reqsz = (5 * 4) + namesz + padsz + (3 * 4); | |
800 | ||
e49c7b2f | 801 | call = afs_alloc_flat_call(op->net, &afs_RXFSLink, reqsz, (21 + 21 + 6) * 4); |
260a9803 | 802 | if (!call) |
e49c7b2f | 803 | return afs_op_nomem(op); |
260a9803 DH |
804 | |
805 | /* marshall the parameters */ | |
806 | bp = call->request; | |
807 | *bp++ = htonl(FSLINK); | |
e49c7b2f DH |
808 | *bp++ = htonl(dvp->fid.vid); |
809 | *bp++ = htonl(dvp->fid.vnode); | |
810 | *bp++ = htonl(dvp->fid.unique); | |
260a9803 | 811 | *bp++ = htonl(namesz); |
e49c7b2f | 812 | memcpy(bp, name->name, namesz); |
260a9803 DH |
813 | bp = (void *) bp + namesz; |
814 | if (padsz > 0) { | |
815 | memset(bp, 0, padsz); | |
816 | bp = (void *) bp + padsz; | |
817 | } | |
e49c7b2f DH |
818 | *bp++ = htonl(vp->fid.vid); |
819 | *bp++ = htonl(vp->fid.vnode); | |
820 | *bp++ = htonl(vp->fid.unique); | |
821 | ||
abcbd3bf | 822 | call->fid = vp->fid; |
e49c7b2f DH |
823 | trace_afs_make_fs_call1(call, &vp->fid, name); |
824 | afs_make_op_call(op, call, GFP_NOFS); | |
260a9803 DH |
825 | } |
826 | ||
827 | /* | |
828 | * deliver reply data to an FS.Symlink | |
829 | */ | |
d001648e | 830 | static int afs_deliver_fs_symlink(struct afs_call *call) |
260a9803 | 831 | { |
e49c7b2f DH |
832 | struct afs_operation *op = call->op; |
833 | struct afs_vnode_param *dvp = &op->file[0]; | |
834 | struct afs_vnode_param *vp = &op->file[1]; | |
260a9803 | 835 | const __be32 *bp; |
372ee163 | 836 | int ret; |
260a9803 | 837 | |
d001648e | 838 | _enter("{%u}", call->unmarshall); |
260a9803 | 839 | |
d001648e | 840 | ret = afs_transfer_reply(call); |
372ee163 DH |
841 | if (ret < 0) |
842 | return ret; | |
260a9803 DH |
843 | |
844 | /* unmarshall the reply once we've received all of it */ | |
845 | bp = call->buffer; | |
e49c7b2f DH |
846 | xdr_decode_AFSFid(&bp, &vp->fid); |
847 | xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); | |
848 | xdr_decode_AFSFetchStatus(&bp, call, &dvp->scb); | |
849 | xdr_decode_AFSVolSync(&bp, &op->volsync); | |
260a9803 DH |
850 | |
851 | _leave(" = 0 [done]"); | |
852 | return 0; | |
853 | } | |
854 | ||
855 | /* | |
856 | * FS.Symlink operation type | |
857 | */ | |
858 | static const struct afs_call_type afs_RXFSSymlink = { | |
859 | .name = "FS.Symlink", | |
025db80c | 860 | .op = afs_FS_Symlink, |
260a9803 | 861 | .deliver = afs_deliver_fs_symlink, |
260a9803 DH |
862 | .destructor = afs_flat_call_destructor, |
863 | }; | |
864 | ||
865 | /* | |
866 | * create a symbolic link | |
867 | */ | |
e49c7b2f | 868 | void afs_fs_symlink(struct afs_operation *op) |
260a9803 | 869 | { |
e49c7b2f DH |
870 | const struct qstr *name = &op->dentry->d_name; |
871 | struct afs_vnode_param *dvp = &op->file[0]; | |
260a9803 DH |
872 | struct afs_call *call; |
873 | size_t namesz, reqsz, padsz, c_namesz, c_padsz; | |
874 | __be32 *bp; | |
875 | ||
876 | _enter(""); | |
877 | ||
e49c7b2f | 878 | namesz = name->len; |
260a9803 DH |
879 | padsz = (4 - (namesz & 3)) & 3; |
880 | ||
e49c7b2f | 881 | c_namesz = strlen(op->create.symlink); |
260a9803 DH |
882 | c_padsz = (4 - (c_namesz & 3)) & 3; |
883 | ||
884 | reqsz = (6 * 4) + namesz + padsz + c_namesz + c_padsz + (6 * 4); | |
885 | ||
e49c7b2f | 886 | call = afs_alloc_flat_call(op->net, &afs_RXFSSymlink, reqsz, |
260a9803 DH |
887 | (3 + 21 + 21 + 6) * 4); |
888 | if (!call) | |
e49c7b2f | 889 | return afs_op_nomem(op); |
260a9803 DH |
890 | |
891 | /* marshall the parameters */ | |
892 | bp = call->request; | |
893 | *bp++ = htonl(FSSYMLINK); | |
e49c7b2f DH |
894 | *bp++ = htonl(dvp->fid.vid); |
895 | *bp++ = htonl(dvp->fid.vnode); | |
896 | *bp++ = htonl(dvp->fid.unique); | |
260a9803 | 897 | *bp++ = htonl(namesz); |
e49c7b2f | 898 | memcpy(bp, name->name, namesz); |
260a9803 DH |
899 | bp = (void *) bp + namesz; |
900 | if (padsz > 0) { | |
901 | memset(bp, 0, padsz); | |
902 | bp = (void *) bp + padsz; | |
903 | } | |
904 | *bp++ = htonl(c_namesz); | |
e49c7b2f | 905 | memcpy(bp, op->create.symlink, c_namesz); |
260a9803 DH |
906 | bp = (void *) bp + c_namesz; |
907 | if (c_padsz > 0) { | |
908 | memset(bp, 0, c_padsz); | |
909 | bp = (void *) bp + c_padsz; | |
910 | } | |
ab94f5d0 | 911 | *bp++ = htonl(AFS_SET_MODE | AFS_SET_MTIME); |
e49c7b2f | 912 | *bp++ = htonl(op->mtime.tv_sec); /* mtime */ |
260a9803 DH |
913 | *bp++ = 0; /* owner */ |
914 | *bp++ = 0; /* group */ | |
915 | *bp++ = htonl(S_IRWXUGO); /* unix mode */ | |
916 | *bp++ = 0; /* segment size */ | |
917 | ||
abcbd3bf | 918 | call->fid = dvp->fid; |
e49c7b2f DH |
919 | trace_afs_make_fs_call1(call, &dvp->fid, name); |
920 | afs_make_op_call(op, call, GFP_NOFS); | |
260a9803 DH |
921 | } |
922 | ||
923 | /* | |
924 | * deliver reply data to an FS.Rename | |
925 | */ | |
d001648e | 926 | static int afs_deliver_fs_rename(struct afs_call *call) |
260a9803 | 927 | { |
e49c7b2f DH |
928 | struct afs_operation *op = call->op; |
929 | struct afs_vnode_param *orig_dvp = &op->file[0]; | |
930 | struct afs_vnode_param *new_dvp = &op->file[1]; | |
260a9803 | 931 | const __be32 *bp; |
372ee163 | 932 | int ret; |
260a9803 | 933 | |
d001648e | 934 | ret = afs_transfer_reply(call); |
372ee163 DH |
935 | if (ret < 0) |
936 | return ret; | |
260a9803 | 937 | |
38355eec | 938 | bp = call->buffer; |
b98f0ec9 DH |
939 | /* If the two dirs are the same, we have two copies of the same status |
940 | * report, so we just decode it twice. | |
941 | */ | |
e49c7b2f DH |
942 | xdr_decode_AFSFetchStatus(&bp, call, &orig_dvp->scb); |
943 | xdr_decode_AFSFetchStatus(&bp, call, &new_dvp->scb); | |
944 | xdr_decode_AFSVolSync(&bp, &op->volsync); | |
260a9803 DH |
945 | |
946 | _leave(" = 0 [done]"); | |
947 | return 0; | |
948 | } | |
949 | ||
950 | /* | |
951 | * FS.Rename operation type | |
952 | */ | |
953 | static const struct afs_call_type afs_RXFSRename = { | |
954 | .name = "FS.Rename", | |
025db80c | 955 | .op = afs_FS_Rename, |
260a9803 | 956 | .deliver = afs_deliver_fs_rename, |
260a9803 DH |
957 | .destructor = afs_flat_call_destructor, |
958 | }; | |
959 | ||
960 | /* | |
a58823ac | 961 | * Rename/move a file or directory. |
260a9803 | 962 | */ |
e49c7b2f | 963 | void afs_fs_rename(struct afs_operation *op) |
260a9803 | 964 | { |
e49c7b2f DH |
965 | struct afs_vnode_param *orig_dvp = &op->file[0]; |
966 | struct afs_vnode_param *new_dvp = &op->file[1]; | |
967 | const struct qstr *orig_name = &op->dentry->d_name; | |
968 | const struct qstr *new_name = &op->dentry_2->d_name; | |
260a9803 DH |
969 | struct afs_call *call; |
970 | size_t reqsz, o_namesz, o_padsz, n_namesz, n_padsz; | |
971 | __be32 *bp; | |
972 | ||
973 | _enter(""); | |
974 | ||
e49c7b2f | 975 | o_namesz = orig_name->len; |
260a9803 DH |
976 | o_padsz = (4 - (o_namesz & 3)) & 3; |
977 | ||
e49c7b2f | 978 | n_namesz = new_name->len; |
260a9803 DH |
979 | n_padsz = (4 - (n_namesz & 3)) & 3; |
980 | ||
981 | reqsz = (4 * 4) + | |
982 | 4 + o_namesz + o_padsz + | |
983 | (3 * 4) + | |
984 | 4 + n_namesz + n_padsz; | |
985 | ||
e49c7b2f | 986 | call = afs_alloc_flat_call(op->net, &afs_RXFSRename, reqsz, (21 + 21 + 6) * 4); |
260a9803 | 987 | if (!call) |
e49c7b2f | 988 | return afs_op_nomem(op); |
260a9803 DH |
989 | |
990 | /* marshall the parameters */ | |
991 | bp = call->request; | |
992 | *bp++ = htonl(FSRENAME); | |
e49c7b2f DH |
993 | *bp++ = htonl(orig_dvp->fid.vid); |
994 | *bp++ = htonl(orig_dvp->fid.vnode); | |
995 | *bp++ = htonl(orig_dvp->fid.unique); | |
260a9803 | 996 | *bp++ = htonl(o_namesz); |
e49c7b2f | 997 | memcpy(bp, orig_name->name, o_namesz); |
260a9803 DH |
998 | bp = (void *) bp + o_namesz; |
999 | if (o_padsz > 0) { | |
1000 | memset(bp, 0, o_padsz); | |
1001 | bp = (void *) bp + o_padsz; | |
1002 | } | |
1003 | ||
e49c7b2f DH |
1004 | *bp++ = htonl(new_dvp->fid.vid); |
1005 | *bp++ = htonl(new_dvp->fid.vnode); | |
1006 | *bp++ = htonl(new_dvp->fid.unique); | |
260a9803 | 1007 | *bp++ = htonl(n_namesz); |
e49c7b2f | 1008 | memcpy(bp, new_name->name, n_namesz); |
260a9803 DH |
1009 | bp = (void *) bp + n_namesz; |
1010 | if (n_padsz > 0) { | |
1011 | memset(bp, 0, n_padsz); | |
1012 | bp = (void *) bp + n_padsz; | |
1013 | } | |
1014 | ||
abcbd3bf | 1015 | call->fid = orig_dvp->fid; |
e49c7b2f DH |
1016 | trace_afs_make_fs_call2(call, &orig_dvp->fid, orig_name, new_name); |
1017 | afs_make_op_call(op, call, GFP_NOFS); | |
260a9803 | 1018 | } |
31143d5d DH |
1019 | |
1020 | /* | |
e49c7b2f | 1021 | * Deliver reply data to FS.StoreData or FS.StoreStatus |
31143d5d | 1022 | */ |
d001648e | 1023 | static int afs_deliver_fs_store_data(struct afs_call *call) |
31143d5d | 1024 | { |
e49c7b2f DH |
1025 | struct afs_operation *op = call->op; |
1026 | struct afs_vnode_param *vp = &op->file[0]; | |
31143d5d | 1027 | const __be32 *bp; |
372ee163 | 1028 | int ret; |
31143d5d | 1029 | |
d001648e | 1030 | _enter(""); |
31143d5d | 1031 | |
d001648e | 1032 | ret = afs_transfer_reply(call); |
372ee163 DH |
1033 | if (ret < 0) |
1034 | return ret; | |
31143d5d DH |
1035 | |
1036 | /* unmarshall the reply once we've received all of it */ | |
1037 | bp = call->buffer; | |
e49c7b2f DH |
1038 | xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); |
1039 | xdr_decode_AFSVolSync(&bp, &op->volsync); | |
31143d5d | 1040 | |
31143d5d DH |
1041 | _leave(" = 0 [done]"); |
1042 | return 0; | |
1043 | } | |
1044 | ||
1045 | /* | |
1046 | * FS.StoreData operation type | |
1047 | */ | |
1048 | static const struct afs_call_type afs_RXFSStoreData = { | |
1049 | .name = "FS.StoreData", | |
025db80c | 1050 | .op = afs_FS_StoreData, |
31143d5d | 1051 | .deliver = afs_deliver_fs_store_data, |
31143d5d DH |
1052 | .destructor = afs_flat_call_destructor, |
1053 | }; | |
1054 | ||
b9b1f8d5 DH |
1055 | static const struct afs_call_type afs_RXFSStoreData64 = { |
1056 | .name = "FS.StoreData64", | |
025db80c | 1057 | .op = afs_FS_StoreData64, |
b9b1f8d5 | 1058 | .deliver = afs_deliver_fs_store_data, |
b9b1f8d5 DH |
1059 | .destructor = afs_flat_call_destructor, |
1060 | }; | |
1061 | ||
1062 | /* | |
1063 | * store a set of pages to a very large file | |
1064 | */ | |
bd80d8a8 | 1065 | static void afs_fs_store_data64(struct afs_operation *op) |
b9b1f8d5 | 1066 | { |
e49c7b2f | 1067 | struct afs_vnode_param *vp = &op->file[0]; |
b9b1f8d5 DH |
1068 | struct afs_call *call; |
1069 | __be32 *bp; | |
1070 | ||
3b6492df | 1071 | _enter(",%x,{%llx:%llu},,", |
e49c7b2f | 1072 | key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
b9b1f8d5 | 1073 | |
e49c7b2f | 1074 | call = afs_alloc_flat_call(op->net, &afs_RXFSStoreData64, |
b9b1f8d5 DH |
1075 | (4 + 6 + 3 * 2) * 4, |
1076 | (21 + 6) * 4); | |
1077 | if (!call) | |
e49c7b2f | 1078 | return afs_op_nomem(op); |
b9b1f8d5 | 1079 | |
bd80d8a8 | 1080 | call->write_iter = op->store.write_iter; |
b9b1f8d5 DH |
1081 | |
1082 | /* marshall the parameters */ | |
1083 | bp = call->request; | |
1084 | *bp++ = htonl(FSSTOREDATA64); | |
e49c7b2f DH |
1085 | *bp++ = htonl(vp->fid.vid); |
1086 | *bp++ = htonl(vp->fid.vnode); | |
1087 | *bp++ = htonl(vp->fid.unique); | |
b9b1f8d5 | 1088 | |
ab94f5d0 | 1089 | *bp++ = htonl(AFS_SET_MTIME); /* mask */ |
e49c7b2f | 1090 | *bp++ = htonl(op->mtime.tv_sec); /* mtime */ |
b9b1f8d5 DH |
1091 | *bp++ = 0; /* owner */ |
1092 | *bp++ = 0; /* group */ | |
1093 | *bp++ = 0; /* unix mode */ | |
1094 | *bp++ = 0; /* segment size */ | |
1095 | ||
bd80d8a8 DH |
1096 | *bp++ = htonl(upper_32_bits(op->store.pos)); |
1097 | *bp++ = htonl(lower_32_bits(op->store.pos)); | |
1098 | *bp++ = htonl(upper_32_bits(op->store.size)); | |
1099 | *bp++ = htonl(lower_32_bits(op->store.size)); | |
1100 | *bp++ = htonl(upper_32_bits(op->store.i_size)); | |
1101 | *bp++ = htonl(lower_32_bits(op->store.i_size)); | |
e49c7b2f | 1102 | |
abcbd3bf | 1103 | call->fid = vp->fid; |
e49c7b2f DH |
1104 | trace_afs_make_fs_call(call, &vp->fid); |
1105 | afs_make_op_call(op, call, GFP_NOFS); | |
b9b1f8d5 DH |
1106 | } |
1107 | ||
31143d5d | 1108 | /* |
bd80d8a8 | 1109 | * Write data to a file on the server. |
31143d5d | 1110 | */ |
e49c7b2f | 1111 | void afs_fs_store_data(struct afs_operation *op) |
31143d5d | 1112 | { |
e49c7b2f | 1113 | struct afs_vnode_param *vp = &op->file[0]; |
31143d5d | 1114 | struct afs_call *call; |
31143d5d DH |
1115 | __be32 *bp; |
1116 | ||
3b6492df | 1117 | _enter(",%x,{%llx:%llu},,", |
e49c7b2f | 1118 | key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
31143d5d | 1119 | |
31143d5d | 1120 | _debug("size %llx, at %llx, i_size %llx", |
bd80d8a8 DH |
1121 | (unsigned long long)op->store.size, |
1122 | (unsigned long long)op->store.pos, | |
1123 | (unsigned long long)op->store.i_size); | |
31143d5d | 1124 | |
b537a3c2 | 1125 | if (test_bit(AFS_SERVER_FL_HAS_FS64, &op->server->flags)) |
bd80d8a8 | 1126 | return afs_fs_store_data64(op); |
31143d5d | 1127 | |
e49c7b2f | 1128 | call = afs_alloc_flat_call(op->net, &afs_RXFSStoreData, |
31143d5d DH |
1129 | (4 + 6 + 3) * 4, |
1130 | (21 + 6) * 4); | |
1131 | if (!call) | |
e49c7b2f | 1132 | return afs_op_nomem(op); |
31143d5d | 1133 | |
bd80d8a8 | 1134 | call->write_iter = op->store.write_iter; |
31143d5d DH |
1135 | |
1136 | /* marshall the parameters */ | |
1137 | bp = call->request; | |
1138 | *bp++ = htonl(FSSTOREDATA); | |
e49c7b2f DH |
1139 | *bp++ = htonl(vp->fid.vid); |
1140 | *bp++ = htonl(vp->fid.vnode); | |
1141 | *bp++ = htonl(vp->fid.unique); | |
31143d5d | 1142 | |
ab94f5d0 | 1143 | *bp++ = htonl(AFS_SET_MTIME); /* mask */ |
e49c7b2f | 1144 | *bp++ = htonl(op->mtime.tv_sec); /* mtime */ |
31143d5d DH |
1145 | *bp++ = 0; /* owner */ |
1146 | *bp++ = 0; /* group */ | |
1147 | *bp++ = 0; /* unix mode */ | |
1148 | *bp++ = 0; /* segment size */ | |
1149 | ||
bd80d8a8 DH |
1150 | *bp++ = htonl(lower_32_bits(op->store.pos)); |
1151 | *bp++ = htonl(lower_32_bits(op->store.size)); | |
1152 | *bp++ = htonl(lower_32_bits(op->store.i_size)); | |
31143d5d | 1153 | |
abcbd3bf | 1154 | call->fid = vp->fid; |
e49c7b2f DH |
1155 | trace_afs_make_fs_call(call, &vp->fid); |
1156 | afs_make_op_call(op, call, GFP_NOFS); | |
31143d5d DH |
1157 | } |
1158 | ||
1159 | /* | |
1160 | * FS.StoreStatus operation type | |
1161 | */ | |
1162 | static const struct afs_call_type afs_RXFSStoreStatus = { | |
1163 | .name = "FS.StoreStatus", | |
025db80c | 1164 | .op = afs_FS_StoreStatus, |
e49c7b2f | 1165 | .deliver = afs_deliver_fs_store_data, |
31143d5d DH |
1166 | .destructor = afs_flat_call_destructor, |
1167 | }; | |
1168 | ||
1169 | static const struct afs_call_type afs_RXFSStoreData_as_Status = { | |
1170 | .name = "FS.StoreData", | |
025db80c | 1171 | .op = afs_FS_StoreData, |
e49c7b2f | 1172 | .deliver = afs_deliver_fs_store_data, |
31143d5d DH |
1173 | .destructor = afs_flat_call_destructor, |
1174 | }; | |
1175 | ||
b9b1f8d5 DH |
1176 | static const struct afs_call_type afs_RXFSStoreData64_as_Status = { |
1177 | .name = "FS.StoreData64", | |
025db80c | 1178 | .op = afs_FS_StoreData64, |
e49c7b2f | 1179 | .deliver = afs_deliver_fs_store_data, |
b9b1f8d5 DH |
1180 | .destructor = afs_flat_call_destructor, |
1181 | }; | |
1182 | ||
1183 | /* | |
1184 | * set the attributes on a very large file, using FS.StoreData rather than | |
1185 | * FS.StoreStatus so as to alter the file size also | |
1186 | */ | |
e49c7b2f | 1187 | static void afs_fs_setattr_size64(struct afs_operation *op) |
b9b1f8d5 | 1188 | { |
e49c7b2f | 1189 | struct afs_vnode_param *vp = &op->file[0]; |
b9b1f8d5 | 1190 | struct afs_call *call; |
e49c7b2f | 1191 | struct iattr *attr = op->setattr.attr; |
b9b1f8d5 DH |
1192 | __be32 *bp; |
1193 | ||
3b6492df | 1194 | _enter(",%x,{%llx:%llu},,", |
e49c7b2f | 1195 | key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
b9b1f8d5 DH |
1196 | |
1197 | ASSERT(attr->ia_valid & ATTR_SIZE); | |
1198 | ||
e49c7b2f | 1199 | call = afs_alloc_flat_call(op->net, &afs_RXFSStoreData64_as_Status, |
b9b1f8d5 DH |
1200 | (4 + 6 + 3 * 2) * 4, |
1201 | (21 + 6) * 4); | |
1202 | if (!call) | |
e49c7b2f | 1203 | return afs_op_nomem(op); |
b9b1f8d5 DH |
1204 | |
1205 | /* marshall the parameters */ | |
1206 | bp = call->request; | |
1207 | *bp++ = htonl(FSSTOREDATA64); | |
e49c7b2f DH |
1208 | *bp++ = htonl(vp->fid.vid); |
1209 | *bp++ = htonl(vp->fid.vnode); | |
1210 | *bp++ = htonl(vp->fid.unique); | |
b9b1f8d5 DH |
1211 | |
1212 | xdr_encode_AFS_StoreStatus(&bp, attr); | |
1213 | ||
e49c7b2f DH |
1214 | *bp++ = htonl(upper_32_bits(attr->ia_size)); /* position of start of write */ |
1215 | *bp++ = htonl(lower_32_bits(attr->ia_size)); | |
1216 | *bp++ = 0; /* size of write */ | |
b9b1f8d5 | 1217 | *bp++ = 0; |
e49c7b2f DH |
1218 | *bp++ = htonl(upper_32_bits(attr->ia_size)); /* new file length */ |
1219 | *bp++ = htonl(lower_32_bits(attr->ia_size)); | |
1220 | ||
abcbd3bf | 1221 | call->fid = vp->fid; |
e49c7b2f DH |
1222 | trace_afs_make_fs_call(call, &vp->fid); |
1223 | afs_make_op_call(op, call, GFP_NOFS); | |
b9b1f8d5 DH |
1224 | } |
1225 | ||
31143d5d DH |
1226 | /* |
1227 | * set the attributes on a file, using FS.StoreData rather than FS.StoreStatus | |
1228 | * so as to alter the file size also | |
1229 | */ | |
e49c7b2f | 1230 | static void afs_fs_setattr_size(struct afs_operation *op) |
31143d5d | 1231 | { |
e49c7b2f | 1232 | struct afs_vnode_param *vp = &op->file[0]; |
31143d5d | 1233 | struct afs_call *call; |
e49c7b2f | 1234 | struct iattr *attr = op->setattr.attr; |
31143d5d DH |
1235 | __be32 *bp; |
1236 | ||
3b6492df | 1237 | _enter(",%x,{%llx:%llu},,", |
e49c7b2f | 1238 | key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
31143d5d DH |
1239 | |
1240 | ASSERT(attr->ia_valid & ATTR_SIZE); | |
b537a3c2 | 1241 | if (test_bit(AFS_SERVER_FL_HAS_FS64, &op->server->flags)) |
e49c7b2f | 1242 | return afs_fs_setattr_size64(op); |
31143d5d | 1243 | |
e49c7b2f | 1244 | call = afs_alloc_flat_call(op->net, &afs_RXFSStoreData_as_Status, |
31143d5d DH |
1245 | (4 + 6 + 3) * 4, |
1246 | (21 + 6) * 4); | |
1247 | if (!call) | |
e49c7b2f | 1248 | return afs_op_nomem(op); |
31143d5d DH |
1249 | |
1250 | /* marshall the parameters */ | |
1251 | bp = call->request; | |
1252 | *bp++ = htonl(FSSTOREDATA); | |
e49c7b2f DH |
1253 | *bp++ = htonl(vp->fid.vid); |
1254 | *bp++ = htonl(vp->fid.vnode); | |
1255 | *bp++ = htonl(vp->fid.unique); | |
31143d5d DH |
1256 | |
1257 | xdr_encode_AFS_StoreStatus(&bp, attr); | |
1258 | ||
8c7ae38d | 1259 | *bp++ = htonl(attr->ia_size); /* position of start of write */ |
31143d5d DH |
1260 | *bp++ = 0; /* size of write */ |
1261 | *bp++ = htonl(attr->ia_size); /* new file length */ | |
1262 | ||
abcbd3bf | 1263 | call->fid = vp->fid; |
e49c7b2f DH |
1264 | trace_afs_make_fs_call(call, &vp->fid); |
1265 | afs_make_op_call(op, call, GFP_NOFS); | |
31143d5d DH |
1266 | } |
1267 | ||
1268 | /* | |
1269 | * set the attributes on a file, using FS.StoreData if there's a change in file | |
1270 | * size, and FS.StoreStatus otherwise | |
1271 | */ | |
e49c7b2f | 1272 | void afs_fs_setattr(struct afs_operation *op) |
31143d5d | 1273 | { |
e49c7b2f | 1274 | struct afs_vnode_param *vp = &op->file[0]; |
31143d5d | 1275 | struct afs_call *call; |
e49c7b2f | 1276 | struct iattr *attr = op->setattr.attr; |
31143d5d DH |
1277 | __be32 *bp; |
1278 | ||
1279 | if (attr->ia_valid & ATTR_SIZE) | |
e49c7b2f | 1280 | return afs_fs_setattr_size(op); |
31143d5d | 1281 | |
3b6492df | 1282 | _enter(",%x,{%llx:%llu},,", |
e49c7b2f | 1283 | key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
31143d5d | 1284 | |
e49c7b2f | 1285 | call = afs_alloc_flat_call(op->net, &afs_RXFSStoreStatus, |
31143d5d DH |
1286 | (4 + 6) * 4, |
1287 | (21 + 6) * 4); | |
1288 | if (!call) | |
e49c7b2f | 1289 | return afs_op_nomem(op); |
31143d5d DH |
1290 | |
1291 | /* marshall the parameters */ | |
1292 | bp = call->request; | |
1293 | *bp++ = htonl(FSSTORESTATUS); | |
e49c7b2f DH |
1294 | *bp++ = htonl(vp->fid.vid); |
1295 | *bp++ = htonl(vp->fid.vnode); | |
1296 | *bp++ = htonl(vp->fid.unique); | |
31143d5d | 1297 | |
e49c7b2f | 1298 | xdr_encode_AFS_StoreStatus(&bp, op->setattr.attr); |
31143d5d | 1299 | |
abcbd3bf | 1300 | call->fid = vp->fid; |
e49c7b2f DH |
1301 | trace_afs_make_fs_call(call, &vp->fid); |
1302 | afs_make_op_call(op, call, GFP_NOFS); | |
31143d5d | 1303 | } |
45222b9e DH |
1304 | |
1305 | /* | |
1306 | * deliver reply data to an FS.GetVolumeStatus | |
1307 | */ | |
d001648e | 1308 | static int afs_deliver_fs_get_volume_status(struct afs_call *call) |
45222b9e | 1309 | { |
e49c7b2f | 1310 | struct afs_operation *op = call->op; |
45222b9e DH |
1311 | const __be32 *bp; |
1312 | char *p; | |
12bdcf33 | 1313 | u32 size; |
45222b9e DH |
1314 | int ret; |
1315 | ||
d001648e | 1316 | _enter("{%u}", call->unmarshall); |
45222b9e DH |
1317 | |
1318 | switch (call->unmarshall) { | |
1319 | case 0: | |
45222b9e | 1320 | call->unmarshall++; |
12bdcf33 | 1321 | afs_extract_to_buf(call, 12 * 4); |
df561f66 | 1322 | fallthrough; |
45222b9e | 1323 | |
29881608 | 1324 | /* extract the returned status record */ |
45222b9e DH |
1325 | case 1: |
1326 | _debug("extract status"); | |
12bdcf33 | 1327 | ret = afs_extract_data(call, true); |
372ee163 DH |
1328 | if (ret < 0) |
1329 | return ret; | |
45222b9e DH |
1330 | |
1331 | bp = call->buffer; | |
e49c7b2f | 1332 | xdr_decode_AFSFetchVolumeStatus(&bp, &op->volstatus.vs); |
45222b9e | 1333 | call->unmarshall++; |
12bdcf33 | 1334 | afs_extract_to_tmp(call); |
df561f66 | 1335 | fallthrough; |
45222b9e | 1336 | |
29881608 | 1337 | /* extract the volume name length */ |
45222b9e | 1338 | case 2: |
12bdcf33 | 1339 | ret = afs_extract_data(call, true); |
372ee163 DH |
1340 | if (ret < 0) |
1341 | return ret; | |
45222b9e DH |
1342 | |
1343 | call->count = ntohl(call->tmp); | |
1344 | _debug("volname length: %u", call->count); | |
1345 | if (call->count >= AFSNAMEMAX) | |
7126ead9 | 1346 | return afs_protocol_error(call, afs_eproto_volname_len); |
12bdcf33 | 1347 | size = (call->count + 3) & ~3; /* It's padded */ |
ffba718e | 1348 | afs_extract_to_buf(call, size); |
45222b9e | 1349 | call->unmarshall++; |
df561f66 | 1350 | fallthrough; |
45222b9e | 1351 | |
29881608 | 1352 | /* extract the volume name */ |
45222b9e DH |
1353 | case 3: |
1354 | _debug("extract volname"); | |
12bdcf33 DH |
1355 | ret = afs_extract_data(call, true); |
1356 | if (ret < 0) | |
1357 | return ret; | |
45222b9e | 1358 | |
ffba718e | 1359 | p = call->buffer; |
45222b9e DH |
1360 | p[call->count] = 0; |
1361 | _debug("volname '%s'", p); | |
12bdcf33 | 1362 | afs_extract_to_tmp(call); |
45222b9e | 1363 | call->unmarshall++; |
df561f66 | 1364 | fallthrough; |
45222b9e | 1365 | |
29881608 | 1366 | /* extract the offline message length */ |
12bdcf33 DH |
1367 | case 4: |
1368 | ret = afs_extract_data(call, true); | |
372ee163 DH |
1369 | if (ret < 0) |
1370 | return ret; | |
45222b9e DH |
1371 | |
1372 | call->count = ntohl(call->tmp); | |
1373 | _debug("offline msg length: %u", call->count); | |
1374 | if (call->count >= AFSNAMEMAX) | |
7126ead9 | 1375 | return afs_protocol_error(call, afs_eproto_offline_msg_len); |
12bdcf33 | 1376 | size = (call->count + 3) & ~3; /* It's padded */ |
ffba718e | 1377 | afs_extract_to_buf(call, size); |
45222b9e | 1378 | call->unmarshall++; |
df561f66 | 1379 | fallthrough; |
45222b9e | 1380 | |
29881608 | 1381 | /* extract the offline message */ |
12bdcf33 | 1382 | case 5: |
45222b9e | 1383 | _debug("extract offline"); |
12bdcf33 DH |
1384 | ret = afs_extract_data(call, true); |
1385 | if (ret < 0) | |
1386 | return ret; | |
45222b9e | 1387 | |
ffba718e | 1388 | p = call->buffer; |
45222b9e DH |
1389 | p[call->count] = 0; |
1390 | _debug("offline '%s'", p); | |
1391 | ||
12bdcf33 | 1392 | afs_extract_to_tmp(call); |
45222b9e | 1393 | call->unmarshall++; |
df561f66 | 1394 | fallthrough; |
45222b9e | 1395 | |
29881608 | 1396 | /* extract the message of the day length */ |
12bdcf33 DH |
1397 | case 6: |
1398 | ret = afs_extract_data(call, true); | |
372ee163 DH |
1399 | if (ret < 0) |
1400 | return ret; | |
45222b9e DH |
1401 | |
1402 | call->count = ntohl(call->tmp); | |
1403 | _debug("motd length: %u", call->count); | |
1404 | if (call->count >= AFSNAMEMAX) | |
7126ead9 | 1405 | return afs_protocol_error(call, afs_eproto_motd_len); |
12bdcf33 | 1406 | size = (call->count + 3) & ~3; /* It's padded */ |
ffba718e | 1407 | afs_extract_to_buf(call, size); |
45222b9e | 1408 | call->unmarshall++; |
df561f66 | 1409 | fallthrough; |
45222b9e | 1410 | |
29881608 | 1411 | /* extract the message of the day */ |
12bdcf33 | 1412 | case 7: |
45222b9e | 1413 | _debug("extract motd"); |
12bdcf33 DH |
1414 | ret = afs_extract_data(call, false); |
1415 | if (ret < 0) | |
1416 | return ret; | |
45222b9e | 1417 | |
ffba718e | 1418 | p = call->buffer; |
45222b9e DH |
1419 | p[call->count] = 0; |
1420 | _debug("motd '%s'", p); | |
1421 | ||
45222b9e | 1422 | call->unmarshall++; |
b2db6c35 | 1423 | fallthrough; |
45222b9e | 1424 | |
12bdcf33 | 1425 | case 8: |
45222b9e DH |
1426 | break; |
1427 | } | |
1428 | ||
45222b9e DH |
1429 | _leave(" = 0 [done]"); |
1430 | return 0; | |
1431 | } | |
1432 | ||
45222b9e DH |
1433 | /* |
1434 | * FS.GetVolumeStatus operation type | |
1435 | */ | |
1436 | static const struct afs_call_type afs_RXFSGetVolumeStatus = { | |
1437 | .name = "FS.GetVolumeStatus", | |
025db80c | 1438 | .op = afs_FS_GetVolumeStatus, |
45222b9e | 1439 | .deliver = afs_deliver_fs_get_volume_status, |
ffba718e | 1440 | .destructor = afs_flat_call_destructor, |
45222b9e DH |
1441 | }; |
1442 | ||
1443 | /* | |
1444 | * fetch the status of a volume | |
1445 | */ | |
e49c7b2f | 1446 | void afs_fs_get_volume_status(struct afs_operation *op) |
45222b9e | 1447 | { |
e49c7b2f | 1448 | struct afs_vnode_param *vp = &op->file[0]; |
45222b9e DH |
1449 | struct afs_call *call; |
1450 | __be32 *bp; | |
45222b9e DH |
1451 | |
1452 | _enter(""); | |
1453 | ||
e49c7b2f | 1454 | call = afs_alloc_flat_call(op->net, &afs_RXFSGetVolumeStatus, 2 * 4, |
ffba718e DH |
1455 | max(12 * 4, AFSOPAQUEMAX + 1)); |
1456 | if (!call) | |
e49c7b2f | 1457 | return afs_op_nomem(op); |
45222b9e DH |
1458 | |
1459 | /* marshall the parameters */ | |
1460 | bp = call->request; | |
1461 | bp[0] = htonl(FSGETVOLUMESTATUS); | |
e49c7b2f | 1462 | bp[1] = htonl(vp->fid.vid); |
45222b9e | 1463 | |
abcbd3bf | 1464 | call->fid = vp->fid; |
e49c7b2f DH |
1465 | trace_afs_make_fs_call(call, &vp->fid); |
1466 | afs_make_op_call(op, call, GFP_NOFS); | |
45222b9e | 1467 | } |
e8d6c554 DH |
1468 | |
1469 | /* | |
1470 | * deliver reply data to an FS.SetLock, FS.ExtendLock or FS.ReleaseLock | |
1471 | */ | |
d001648e | 1472 | static int afs_deliver_fs_xxxx_lock(struct afs_call *call) |
e8d6c554 | 1473 | { |
e49c7b2f | 1474 | struct afs_operation *op = call->op; |
e8d6c554 | 1475 | const __be32 *bp; |
372ee163 | 1476 | int ret; |
e8d6c554 | 1477 | |
d001648e | 1478 | _enter("{%u}", call->unmarshall); |
e8d6c554 | 1479 | |
d001648e | 1480 | ret = afs_transfer_reply(call); |
372ee163 DH |
1481 | if (ret < 0) |
1482 | return ret; | |
e8d6c554 DH |
1483 | |
1484 | /* unmarshall the reply once we've received all of it */ | |
1485 | bp = call->buffer; | |
e49c7b2f | 1486 | xdr_decode_AFSVolSync(&bp, &op->volsync); |
e8d6c554 DH |
1487 | |
1488 | _leave(" = 0 [done]"); | |
1489 | return 0; | |
1490 | } | |
1491 | ||
1492 | /* | |
1493 | * FS.SetLock operation type | |
1494 | */ | |
1495 | static const struct afs_call_type afs_RXFSSetLock = { | |
1496 | .name = "FS.SetLock", | |
025db80c | 1497 | .op = afs_FS_SetLock, |
e8d6c554 | 1498 | .deliver = afs_deliver_fs_xxxx_lock, |
a690f60a | 1499 | .done = afs_lock_op_done, |
e8d6c554 DH |
1500 | .destructor = afs_flat_call_destructor, |
1501 | }; | |
1502 | ||
1503 | /* | |
1504 | * FS.ExtendLock operation type | |
1505 | */ | |
1506 | static const struct afs_call_type afs_RXFSExtendLock = { | |
1507 | .name = "FS.ExtendLock", | |
025db80c | 1508 | .op = afs_FS_ExtendLock, |
e8d6c554 | 1509 | .deliver = afs_deliver_fs_xxxx_lock, |
a690f60a | 1510 | .done = afs_lock_op_done, |
e8d6c554 DH |
1511 | .destructor = afs_flat_call_destructor, |
1512 | }; | |
1513 | ||
1514 | /* | |
1515 | * FS.ReleaseLock operation type | |
1516 | */ | |
1517 | static const struct afs_call_type afs_RXFSReleaseLock = { | |
1518 | .name = "FS.ReleaseLock", | |
025db80c | 1519 | .op = afs_FS_ReleaseLock, |
e8d6c554 | 1520 | .deliver = afs_deliver_fs_xxxx_lock, |
e8d6c554 DH |
1521 | .destructor = afs_flat_call_destructor, |
1522 | }; | |
1523 | ||
1524 | /* | |
d2ddc776 | 1525 | * Set a lock on a file |
e8d6c554 | 1526 | */ |
e49c7b2f | 1527 | void afs_fs_set_lock(struct afs_operation *op) |
e8d6c554 | 1528 | { |
e49c7b2f | 1529 | struct afs_vnode_param *vp = &op->file[0]; |
e8d6c554 DH |
1530 | struct afs_call *call; |
1531 | __be32 *bp; | |
1532 | ||
1533 | _enter(""); | |
1534 | ||
e49c7b2f | 1535 | call = afs_alloc_flat_call(op->net, &afs_RXFSSetLock, 5 * 4, 6 * 4); |
e8d6c554 | 1536 | if (!call) |
e49c7b2f | 1537 | return afs_op_nomem(op); |
e8d6c554 DH |
1538 | |
1539 | /* marshall the parameters */ | |
1540 | bp = call->request; | |
1541 | *bp++ = htonl(FSSETLOCK); | |
e49c7b2f DH |
1542 | *bp++ = htonl(vp->fid.vid); |
1543 | *bp++ = htonl(vp->fid.vnode); | |
1544 | *bp++ = htonl(vp->fid.unique); | |
1545 | *bp++ = htonl(op->lock.type); | |
1546 | ||
abcbd3bf | 1547 | call->fid = vp->fid; |
e49c7b2f DH |
1548 | trace_afs_make_fs_calli(call, &vp->fid, op->lock.type); |
1549 | afs_make_op_call(op, call, GFP_NOFS); | |
e8d6c554 DH |
1550 | } |
1551 | ||
1552 | /* | |
1553 | * extend a lock on a file | |
1554 | */ | |
e49c7b2f | 1555 | void afs_fs_extend_lock(struct afs_operation *op) |
e8d6c554 | 1556 | { |
e49c7b2f | 1557 | struct afs_vnode_param *vp = &op->file[0]; |
e8d6c554 DH |
1558 | struct afs_call *call; |
1559 | __be32 *bp; | |
1560 | ||
1561 | _enter(""); | |
1562 | ||
e49c7b2f | 1563 | call = afs_alloc_flat_call(op->net, &afs_RXFSExtendLock, 4 * 4, 6 * 4); |
e8d6c554 | 1564 | if (!call) |
e49c7b2f | 1565 | return afs_op_nomem(op); |
e8d6c554 DH |
1566 | |
1567 | /* marshall the parameters */ | |
1568 | bp = call->request; | |
1569 | *bp++ = htonl(FSEXTENDLOCK); | |
e49c7b2f DH |
1570 | *bp++ = htonl(vp->fid.vid); |
1571 | *bp++ = htonl(vp->fid.vnode); | |
1572 | *bp++ = htonl(vp->fid.unique); | |
1573 | ||
abcbd3bf | 1574 | call->fid = vp->fid; |
e49c7b2f DH |
1575 | trace_afs_make_fs_call(call, &vp->fid); |
1576 | afs_make_op_call(op, call, GFP_NOFS); | |
e8d6c554 DH |
1577 | } |
1578 | ||
1579 | /* | |
1580 | * release a lock on a file | |
1581 | */ | |
e49c7b2f | 1582 | void afs_fs_release_lock(struct afs_operation *op) |
e8d6c554 | 1583 | { |
e49c7b2f | 1584 | struct afs_vnode_param *vp = &op->file[0]; |
e8d6c554 DH |
1585 | struct afs_call *call; |
1586 | __be32 *bp; | |
1587 | ||
1588 | _enter(""); | |
1589 | ||
e49c7b2f | 1590 | call = afs_alloc_flat_call(op->net, &afs_RXFSReleaseLock, 4 * 4, 6 * 4); |
e8d6c554 | 1591 | if (!call) |
e49c7b2f | 1592 | return afs_op_nomem(op); |
e8d6c554 DH |
1593 | |
1594 | /* marshall the parameters */ | |
1595 | bp = call->request; | |
1596 | *bp++ = htonl(FSRELEASELOCK); | |
e49c7b2f DH |
1597 | *bp++ = htonl(vp->fid.vid); |
1598 | *bp++ = htonl(vp->fid.vnode); | |
1599 | *bp++ = htonl(vp->fid.unique); | |
1600 | ||
abcbd3bf | 1601 | call->fid = vp->fid; |
e49c7b2f DH |
1602 | trace_afs_make_fs_call(call, &vp->fid); |
1603 | afs_make_op_call(op, call, GFP_NOFS); | |
c435ee34 DH |
1604 | } |
1605 | ||
1606 | /* | |
1607 | * Deliver reply data to an FS.GiveUpAllCallBacks operation. | |
1608 | */ | |
1609 | static int afs_deliver_fs_give_up_all_callbacks(struct afs_call *call) | |
1610 | { | |
1611 | return afs_transfer_reply(call); | |
1612 | } | |
1613 | ||
1614 | /* | |
1615 | * FS.GiveUpAllCallBacks operation type | |
1616 | */ | |
1617 | static const struct afs_call_type afs_RXFSGiveUpAllCallBacks = { | |
1618 | .name = "FS.GiveUpAllCallBacks", | |
025db80c | 1619 | .op = afs_FS_GiveUpAllCallBacks, |
c435ee34 DH |
1620 | .deliver = afs_deliver_fs_give_up_all_callbacks, |
1621 | .destructor = afs_flat_call_destructor, | |
1622 | }; | |
1623 | ||
1624 | /* | |
1625 | * Flush all the callbacks we have on a server. | |
1626 | */ | |
98f9fda2 DH |
1627 | int afs_fs_give_up_all_callbacks(struct afs_net *net, struct afs_server *server, |
1628 | struct afs_address *addr, struct key *key) | |
c435ee34 DH |
1629 | { |
1630 | struct afs_call *call; | |
1631 | __be32 *bp; | |
6f2ff7e8 | 1632 | int ret; |
c435ee34 DH |
1633 | |
1634 | _enter(""); | |
1635 | ||
d2ddc776 | 1636 | call = afs_alloc_flat_call(net, &afs_RXFSGiveUpAllCallBacks, 1 * 4, 0); |
c435ee34 DH |
1637 | if (!call) |
1638 | return -ENOMEM; | |
1639 | ||
e38f299e | 1640 | call->key = key; |
98f9fda2 | 1641 | call->peer = rxrpc_kernel_get_peer(addr->peer); |
e38f299e | 1642 | call->service_id = server->service_id; |
c435ee34 DH |
1643 | |
1644 | /* marshall the parameters */ | |
1645 | bp = call->request; | |
1646 | *bp++ = htonl(FSGIVEUPALLCALLBACKS); | |
1647 | ||
977e5f8e | 1648 | call->server = afs_use_server(server, afs_server_trace_give_up_cb); |
98f9fda2 DH |
1649 | afs_make_call(call, GFP_NOFS); |
1650 | afs_wait_for_call_to_complete(call); | |
aa453bec | 1651 | ret = call->error; |
98f9fda2 DH |
1652 | if (call->responded) |
1653 | set_bit(AFS_SERVER_FL_RESPONDING, &server->flags); | |
6f2ff7e8 DH |
1654 | afs_put_call(call); |
1655 | return ret; | |
d2ddc776 DH |
1656 | } |
1657 | ||
1658 | /* | |
1659 | * Deliver reply data to an FS.GetCapabilities operation. | |
1660 | */ | |
1661 | static int afs_deliver_fs_get_capabilities(struct afs_call *call) | |
1662 | { | |
1663 | u32 count; | |
1664 | int ret; | |
1665 | ||
fc276122 | 1666 | _enter("{%u,%zu}", call->unmarshall, iov_iter_count(call->iter)); |
d2ddc776 | 1667 | |
d2ddc776 DH |
1668 | switch (call->unmarshall) { |
1669 | case 0: | |
12bdcf33 | 1670 | afs_extract_to_tmp(call); |
d2ddc776 | 1671 | call->unmarshall++; |
df561f66 | 1672 | fallthrough; |
d2ddc776 | 1673 | |
29881608 | 1674 | /* Extract the capabilities word count */ |
d2ddc776 | 1675 | case 1: |
12bdcf33 | 1676 | ret = afs_extract_data(call, true); |
d2ddc776 DH |
1677 | if (ret < 0) |
1678 | return ret; | |
1679 | ||
1680 | count = ntohl(call->tmp); | |
d2ddc776 DH |
1681 | call->count = count; |
1682 | call->count2 = count; | |
b537a3c2 DH |
1683 | if (count == 0) { |
1684 | call->unmarshall = 4; | |
1685 | call->tmp = 0; | |
1686 | break; | |
1687 | } | |
1688 | ||
1689 | /* Extract the first word of the capabilities to call->tmp */ | |
1690 | afs_extract_to_tmp(call); | |
d2ddc776 | 1691 | call->unmarshall++; |
df561f66 | 1692 | fallthrough; |
d2ddc776 | 1693 | |
d2ddc776 | 1694 | case 2: |
12bdcf33 | 1695 | ret = afs_extract_data(call, false); |
d2ddc776 DH |
1696 | if (ret < 0) |
1697 | return ret; | |
1698 | ||
b537a3c2 DH |
1699 | afs_extract_discard(call, (count - 1) * sizeof(__be32)); |
1700 | call->unmarshall++; | |
1701 | fallthrough; | |
1702 | ||
1703 | /* Extract remaining capabilities words */ | |
1704 | case 3: | |
1705 | ret = afs_extract_data(call, false); | |
1706 | if (ret < 0) | |
1707 | return ret; | |
d2ddc776 | 1708 | |
d2ddc776 DH |
1709 | call->unmarshall++; |
1710 | break; | |
1711 | } | |
1712 | ||
1713 | _leave(" = 0 [done]"); | |
1714 | return 0; | |
1715 | } | |
1716 | ||
98f9fda2 DH |
1717 | static void afs_fs_get_capabilities_destructor(struct afs_call *call) |
1718 | { | |
f49b594d | 1719 | afs_put_endpoint_state(call->probe, afs_estate_trace_put_getcaps); |
98f9fda2 DH |
1720 | afs_flat_call_destructor(call); |
1721 | } | |
1722 | ||
d2ddc776 DH |
1723 | /* |
1724 | * FS.GetCapabilities operation type | |
1725 | */ | |
1726 | static const struct afs_call_type afs_RXFSGetCapabilities = { | |
1727 | .name = "FS.GetCapabilities", | |
025db80c | 1728 | .op = afs_FS_GetCapabilities, |
d2ddc776 | 1729 | .deliver = afs_deliver_fs_get_capabilities, |
3bf0fb6f | 1730 | .done = afs_fileserver_probe_result, |
98f9fda2 | 1731 | .destructor = afs_fs_get_capabilities_destructor, |
d2ddc776 DH |
1732 | }; |
1733 | ||
1734 | /* | |
f6cbb368 DH |
1735 | * Probe a fileserver for the capabilities that it supports. This RPC can |
1736 | * reply with up to 196 words. The operation is asynchronous and if we managed | |
1737 | * to allocate a call, true is returned the result is delivered through the | |
1738 | * ->done() - otherwise we return false to indicate we didn't even try. | |
d2ddc776 | 1739 | */ |
f6cbb368 | 1740 | bool afs_fs_get_capabilities(struct afs_net *net, struct afs_server *server, |
f49b594d | 1741 | struct afs_endpoint_state *estate, unsigned int addr_index, |
98f9fda2 | 1742 | struct key *key) |
d2ddc776 DH |
1743 | { |
1744 | struct afs_call *call; | |
1745 | __be32 *bp; | |
1746 | ||
1747 | _enter(""); | |
1748 | ||
1749 | call = afs_alloc_flat_call(net, &afs_RXFSGetCapabilities, 1 * 4, 16 * 4); | |
1750 | if (!call) | |
f6cbb368 | 1751 | return false; |
d2ddc776 | 1752 | |
e38f299e DH |
1753 | call->key = key; |
1754 | call->server = afs_use_server(server, afs_server_trace_get_caps); | |
f49b594d DH |
1755 | call->peer = rxrpc_kernel_get_peer(estate->addresses->addrs[addr_index].peer); |
1756 | call->probe = afs_get_endpoint_state(estate, afs_estate_trace_get_getcaps); | |
98f9fda2 | 1757 | call->probe_index = addr_index; |
e38f299e DH |
1758 | call->service_id = server->service_id; |
1759 | call->upgrade = true; | |
1760 | call->async = true; | |
94f699c9 | 1761 | call->max_lifespan = AFS_PROBE_MAX_LIFESPAN; |
d2ddc776 DH |
1762 | |
1763 | /* marshall the parameters */ | |
1764 | bp = call->request; | |
1765 | *bp++ = htonl(FSGETCAPABILITIES); | |
1766 | ||
025db80c | 1767 | trace_afs_make_fs_call(call, NULL); |
98f9fda2 | 1768 | afs_make_call(call, GFP_NOFS); |
f6cbb368 DH |
1769 | afs_put_call(call); |
1770 | return true; | |
e8d6c554 | 1771 | } |
5cf9dd55 | 1772 | |
5cf9dd55 DH |
1773 | /* |
1774 | * Deliver reply data to an FS.InlineBulkStatus call | |
1775 | */ | |
1776 | static int afs_deliver_fs_inline_bulk_status(struct afs_call *call) | |
1777 | { | |
e49c7b2f | 1778 | struct afs_operation *op = call->op; |
87182759 | 1779 | struct afs_status_cb *scb; |
5cf9dd55 DH |
1780 | const __be32 *bp; |
1781 | u32 tmp; | |
1782 | int ret; | |
1783 | ||
1784 | _enter("{%u}", call->unmarshall); | |
1785 | ||
1786 | switch (call->unmarshall) { | |
1787 | case 0: | |
12bdcf33 | 1788 | afs_extract_to_tmp(call); |
5cf9dd55 | 1789 | call->unmarshall++; |
df561f66 | 1790 | fallthrough; |
5cf9dd55 DH |
1791 | |
1792 | /* Extract the file status count and array in two steps */ | |
1793 | case 1: | |
1794 | _debug("extract status count"); | |
12bdcf33 | 1795 | ret = afs_extract_data(call, true); |
5cf9dd55 DH |
1796 | if (ret < 0) |
1797 | return ret; | |
1798 | ||
1799 | tmp = ntohl(call->tmp); | |
e49c7b2f DH |
1800 | _debug("status count: %u/%u", tmp, op->nr_files); |
1801 | if (tmp != op->nr_files) | |
7126ead9 | 1802 | return afs_protocol_error(call, afs_eproto_ibulkst_count); |
5cf9dd55 DH |
1803 | |
1804 | call->count = 0; | |
1805 | call->unmarshall++; | |
1806 | more_counts: | |
12bdcf33 | 1807 | afs_extract_to_buf(call, 21 * sizeof(__be32)); |
df561f66 | 1808 | fallthrough; |
29881608 | 1809 | |
5cf9dd55 DH |
1810 | case 2: |
1811 | _debug("extract status array %u", call->count); | |
12bdcf33 | 1812 | ret = afs_extract_data(call, true); |
5cf9dd55 DH |
1813 | if (ret < 0) |
1814 | return ret; | |
1815 | ||
e49c7b2f DH |
1816 | switch (call->count) { |
1817 | case 0: | |
1818 | scb = &op->file[0].scb; | |
1819 | break; | |
1820 | case 1: | |
1821 | scb = &op->file[1].scb; | |
1822 | break; | |
1823 | default: | |
1824 | scb = &op->more_files[call->count - 2].scb; | |
1825 | break; | |
1826 | } | |
1827 | ||
5cf9dd55 | 1828 | bp = call->buffer; |
38355eec | 1829 | xdr_decode_AFSFetchStatus(&bp, call, scb); |
e49c7b2f | 1830 | |
5cf9dd55 | 1831 | call->count++; |
e49c7b2f | 1832 | if (call->count < op->nr_files) |
5cf9dd55 DH |
1833 | goto more_counts; |
1834 | ||
1835 | call->count = 0; | |
1836 | call->unmarshall++; | |
12bdcf33 | 1837 | afs_extract_to_tmp(call); |
df561f66 | 1838 | fallthrough; |
5cf9dd55 DH |
1839 | |
1840 | /* Extract the callback count and array in two steps */ | |
1841 | case 3: | |
1842 | _debug("extract CB count"); | |
12bdcf33 | 1843 | ret = afs_extract_data(call, true); |
5cf9dd55 DH |
1844 | if (ret < 0) |
1845 | return ret; | |
1846 | ||
1847 | tmp = ntohl(call->tmp); | |
1848 | _debug("CB count: %u", tmp); | |
e49c7b2f | 1849 | if (tmp != op->nr_files) |
7126ead9 | 1850 | return afs_protocol_error(call, afs_eproto_ibulkst_cb_count); |
5cf9dd55 DH |
1851 | call->count = 0; |
1852 | call->unmarshall++; | |
1853 | more_cbs: | |
12bdcf33 | 1854 | afs_extract_to_buf(call, 3 * sizeof(__be32)); |
df561f66 | 1855 | fallthrough; |
29881608 | 1856 | |
5cf9dd55 DH |
1857 | case 4: |
1858 | _debug("extract CB array"); | |
12bdcf33 | 1859 | ret = afs_extract_data(call, true); |
5cf9dd55 DH |
1860 | if (ret < 0) |
1861 | return ret; | |
1862 | ||
1863 | _debug("unmarshall CB array"); | |
e49c7b2f DH |
1864 | switch (call->count) { |
1865 | case 0: | |
1866 | scb = &op->file[0].scb; | |
1867 | break; | |
1868 | case 1: | |
1869 | scb = &op->file[1].scb; | |
1870 | break; | |
1871 | default: | |
1872 | scb = &op->more_files[call->count - 2].scb; | |
1873 | break; | |
1874 | } | |
1875 | ||
5cf9dd55 | 1876 | bp = call->buffer; |
a58823ac | 1877 | xdr_decode_AFSCallBack(&bp, call, scb); |
5cf9dd55 | 1878 | call->count++; |
e49c7b2f | 1879 | if (call->count < op->nr_files) |
5cf9dd55 DH |
1880 | goto more_cbs; |
1881 | ||
12bdcf33 | 1882 | afs_extract_to_buf(call, 6 * sizeof(__be32)); |
5cf9dd55 | 1883 | call->unmarshall++; |
df561f66 | 1884 | fallthrough; |
29881608 | 1885 | |
5cf9dd55 | 1886 | case 5: |
12bdcf33 | 1887 | ret = afs_extract_data(call, false); |
5cf9dd55 DH |
1888 | if (ret < 0) |
1889 | return ret; | |
1890 | ||
1891 | bp = call->buffer; | |
16069e13 DH |
1892 | /* Unfortunately, prior to OpenAFS-1.6, volsync here is filled |
1893 | * with rubbish. | |
1894 | */ | |
1895 | xdr_decode_AFSVolSync(&bp, NULL); | |
5cf9dd55 | 1896 | |
5cf9dd55 | 1897 | call->unmarshall++; |
b2db6c35 | 1898 | fallthrough; |
5cf9dd55 DH |
1899 | |
1900 | case 6: | |
1901 | break; | |
1902 | } | |
1903 | ||
1904 | _leave(" = 0 [done]"); | |
1905 | return 0; | |
1906 | } | |
1907 | ||
e49c7b2f DH |
1908 | static void afs_done_fs_inline_bulk_status(struct afs_call *call) |
1909 | { | |
1910 | if (call->error == -ECONNABORTED && | |
20325960 | 1911 | call->abort_code == RX_INVALID_OPERATION) { |
e49c7b2f | 1912 | set_bit(AFS_SERVER_FL_NO_IBULK, &call->server->flags); |
20325960 DH |
1913 | if (call->op) |
1914 | set_bit(AFS_VOLUME_MAYBE_NO_IBULK, &call->op->volume->flags); | |
1915 | } | |
e49c7b2f DH |
1916 | } |
1917 | ||
5cf9dd55 DH |
1918 | /* |
1919 | * FS.InlineBulkStatus operation type | |
1920 | */ | |
1921 | static const struct afs_call_type afs_RXFSInlineBulkStatus = { | |
1922 | .name = "FS.InlineBulkStatus", | |
1923 | .op = afs_FS_InlineBulkStatus, | |
1924 | .deliver = afs_deliver_fs_inline_bulk_status, | |
e49c7b2f | 1925 | .done = afs_done_fs_inline_bulk_status, |
5cf9dd55 DH |
1926 | .destructor = afs_flat_call_destructor, |
1927 | }; | |
1928 | ||
1929 | /* | |
1930 | * Fetch the status information for up to 50 files | |
1931 | */ | |
e49c7b2f | 1932 | void afs_fs_inline_bulk_status(struct afs_operation *op) |
5cf9dd55 | 1933 | { |
e49c7b2f DH |
1934 | struct afs_vnode_param *dvp = &op->file[0]; |
1935 | struct afs_vnode_param *vp = &op->file[1]; | |
5cf9dd55 DH |
1936 | struct afs_call *call; |
1937 | __be32 *bp; | |
1938 | int i; | |
1939 | ||
20325960 | 1940 | if (test_bit(AFS_SERVER_FL_NO_IBULK, &op->server->flags)) { |
2de5599f | 1941 | afs_op_set_error(op, -ENOTSUPP); |
e49c7b2f DH |
1942 | return; |
1943 | } | |
30062bd1 | 1944 | |
3b6492df | 1945 | _enter(",%x,{%llx:%llu},%u", |
e49c7b2f | 1946 | key_serial(op->key), vp->fid.vid, vp->fid.vnode, op->nr_files); |
5cf9dd55 | 1947 | |
e49c7b2f DH |
1948 | call = afs_alloc_flat_call(op->net, &afs_RXFSInlineBulkStatus, |
1949 | (2 + op->nr_files * 3) * 4, | |
5cf9dd55 | 1950 | 21 * 4); |
e49c7b2f DH |
1951 | if (!call) |
1952 | return afs_op_nomem(op); | |
5cf9dd55 DH |
1953 | |
1954 | /* marshall the parameters */ | |
1955 | bp = call->request; | |
1956 | *bp++ = htonl(FSINLINEBULKSTATUS); | |
e49c7b2f DH |
1957 | *bp++ = htonl(op->nr_files); |
1958 | *bp++ = htonl(dvp->fid.vid); | |
1959 | *bp++ = htonl(dvp->fid.vnode); | |
1960 | *bp++ = htonl(dvp->fid.unique); | |
1961 | *bp++ = htonl(vp->fid.vid); | |
1962 | *bp++ = htonl(vp->fid.vnode); | |
1963 | *bp++ = htonl(vp->fid.unique); | |
1964 | for (i = 0; i < op->nr_files - 2; i++) { | |
1965 | *bp++ = htonl(op->more_files[i].fid.vid); | |
1966 | *bp++ = htonl(op->more_files[i].fid.vnode); | |
1967 | *bp++ = htonl(op->more_files[i].fid.unique); | |
5cf9dd55 DH |
1968 | } |
1969 | ||
abcbd3bf | 1970 | call->fid = vp->fid; |
e49c7b2f DH |
1971 | trace_afs_make_fs_call(call, &vp->fid); |
1972 | afs_make_op_call(op, call, GFP_NOFS); | |
5cf9dd55 | 1973 | } |
260f082b DH |
1974 | |
1975 | /* | |
1976 | * deliver reply data to an FS.FetchACL | |
1977 | */ | |
1978 | static int afs_deliver_fs_fetch_acl(struct afs_call *call) | |
1979 | { | |
e49c7b2f DH |
1980 | struct afs_operation *op = call->op; |
1981 | struct afs_vnode_param *vp = &op->file[0]; | |
260f082b DH |
1982 | struct afs_acl *acl; |
1983 | const __be32 *bp; | |
1984 | unsigned int size; | |
1985 | int ret; | |
1986 | ||
1987 | _enter("{%u}", call->unmarshall); | |
1988 | ||
1989 | switch (call->unmarshall) { | |
1990 | case 0: | |
1991 | afs_extract_to_tmp(call); | |
1992 | call->unmarshall++; | |
df561f66 | 1993 | fallthrough; |
260f082b DH |
1994 | |
1995 | /* extract the returned data length */ | |
1996 | case 1: | |
1997 | ret = afs_extract_data(call, true); | |
1998 | if (ret < 0) | |
1999 | return ret; | |
2000 | ||
2001 | size = call->count2 = ntohl(call->tmp); | |
2002 | size = round_up(size, 4); | |
2003 | ||
2004 | acl = kmalloc(struct_size(acl, data, size), GFP_KERNEL); | |
2005 | if (!acl) | |
2006 | return -ENOMEM; | |
e49c7b2f | 2007 | op->acl = acl; |
260f082b DH |
2008 | acl->size = call->count2; |
2009 | afs_extract_begin(call, acl->data, size); | |
2010 | call->unmarshall++; | |
df561f66 | 2011 | fallthrough; |
260f082b DH |
2012 | |
2013 | /* extract the returned data */ | |
2014 | case 2: | |
2015 | ret = afs_extract_data(call, true); | |
2016 | if (ret < 0) | |
2017 | return ret; | |
2018 | ||
2019 | afs_extract_to_buf(call, (21 + 6) * 4); | |
2020 | call->unmarshall++; | |
df561f66 | 2021 | fallthrough; |
260f082b DH |
2022 | |
2023 | /* extract the metadata */ | |
2024 | case 3: | |
2025 | ret = afs_extract_data(call, false); | |
2026 | if (ret < 0) | |
2027 | return ret; | |
2028 | ||
2029 | bp = call->buffer; | |
e49c7b2f DH |
2030 | xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); |
2031 | xdr_decode_AFSVolSync(&bp, &op->volsync); | |
260f082b DH |
2032 | |
2033 | call->unmarshall++; | |
b2db6c35 | 2034 | fallthrough; |
260f082b DH |
2035 | |
2036 | case 4: | |
2037 | break; | |
2038 | } | |
2039 | ||
2040 | _leave(" = 0 [done]"); | |
2041 | return 0; | |
2042 | } | |
2043 | ||
260f082b DH |
2044 | /* |
2045 | * FS.FetchACL operation type | |
2046 | */ | |
2047 | static const struct afs_call_type afs_RXFSFetchACL = { | |
2048 | .name = "FS.FetchACL", | |
2049 | .op = afs_FS_FetchACL, | |
2050 | .deliver = afs_deliver_fs_fetch_acl, | |
260f082b DH |
2051 | }; |
2052 | ||
2053 | /* | |
2054 | * Fetch the ACL for a file. | |
2055 | */ | |
e49c7b2f | 2056 | void afs_fs_fetch_acl(struct afs_operation *op) |
260f082b | 2057 | { |
e49c7b2f | 2058 | struct afs_vnode_param *vp = &op->file[0]; |
260f082b | 2059 | struct afs_call *call; |
260f082b DH |
2060 | __be32 *bp; |
2061 | ||
2062 | _enter(",%x,{%llx:%llu},,", | |
e49c7b2f | 2063 | key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
260f082b | 2064 | |
e49c7b2f DH |
2065 | call = afs_alloc_flat_call(op->net, &afs_RXFSFetchACL, 16, (21 + 6) * 4); |
2066 | if (!call) | |
2067 | return afs_op_nomem(op); | |
260f082b DH |
2068 | |
2069 | /* marshall the parameters */ | |
2070 | bp = call->request; | |
2071 | bp[0] = htonl(FSFETCHACL); | |
e49c7b2f DH |
2072 | bp[1] = htonl(vp->fid.vid); |
2073 | bp[2] = htonl(vp->fid.vnode); | |
2074 | bp[3] = htonl(vp->fid.unique); | |
b10494af | 2075 | |
abcbd3bf | 2076 | call->fid = vp->fid; |
e49c7b2f DH |
2077 | trace_afs_make_fs_call(call, &vp->fid); |
2078 | afs_make_op_call(op, call, GFP_KERNEL); | |
ffba718e DH |
2079 | } |
2080 | ||
b10494af JG |
2081 | /* |
2082 | * FS.StoreACL operation type | |
2083 | */ | |
2084 | static const struct afs_call_type afs_RXFSStoreACL = { | |
2085 | .name = "FS.StoreACL", | |
2086 | .op = afs_FS_StoreACL, | |
ffba718e | 2087 | .deliver = afs_deliver_fs_file_status_and_vol, |
b10494af JG |
2088 | .destructor = afs_flat_call_destructor, |
2089 | }; | |
2090 | ||
2091 | /* | |
2092 | * Fetch the ACL for a file. | |
2093 | */ | |
e49c7b2f | 2094 | void afs_fs_store_acl(struct afs_operation *op) |
b10494af | 2095 | { |
e49c7b2f | 2096 | struct afs_vnode_param *vp = &op->file[0]; |
b10494af | 2097 | struct afs_call *call; |
e49c7b2f | 2098 | const struct afs_acl *acl = op->acl; |
b10494af JG |
2099 | size_t size; |
2100 | __be32 *bp; | |
2101 | ||
2102 | _enter(",%x,{%llx:%llu},,", | |
e49c7b2f | 2103 | key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
b10494af JG |
2104 | |
2105 | size = round_up(acl->size, 4); | |
e49c7b2f | 2106 | call = afs_alloc_flat_call(op->net, &afs_RXFSStoreACL, |
b10494af | 2107 | 5 * 4 + size, (21 + 6) * 4); |
e49c7b2f DH |
2108 | if (!call) |
2109 | return afs_op_nomem(op); | |
b10494af JG |
2110 | |
2111 | /* marshall the parameters */ | |
2112 | bp = call->request; | |
2113 | bp[0] = htonl(FSSTOREACL); | |
e49c7b2f DH |
2114 | bp[1] = htonl(vp->fid.vid); |
2115 | bp[2] = htonl(vp->fid.vnode); | |
2116 | bp[3] = htonl(vp->fid.unique); | |
b10494af JG |
2117 | bp[4] = htonl(acl->size); |
2118 | memcpy(&bp[5], acl->data, acl->size); | |
2119 | if (acl->size != size) | |
2120 | memset((void *)&bp[5] + acl->size, 0, size - acl->size); | |
2121 | ||
abcbd3bf | 2122 | call->fid = vp->fid; |
e49c7b2f DH |
2123 | trace_afs_make_fs_call(call, &vp->fid); |
2124 | afs_make_op_call(op, call, GFP_KERNEL); | |
5cf9dd55 | 2125 | } |