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> |
1da177e4 | 13 | #include "internal.h" |
08e0e7c8 | 14 | #include "afs_fs.h" |
dd9fbcb8 | 15 | #include "xdr_fs.h" |
c435ee34 | 16 | |
260a9803 DH |
17 | /* |
18 | * decode an AFSFid block | |
19 | */ | |
20 | static void xdr_decode_AFSFid(const __be32 **_bp, struct afs_fid *fid) | |
21 | { | |
22 | const __be32 *bp = *_bp; | |
23 | ||
24 | fid->vid = ntohl(*bp++); | |
25 | fid->vnode = ntohl(*bp++); | |
26 | fid->unique = ntohl(*bp++); | |
27 | *_bp = bp; | |
28 | } | |
29 | ||
888b3384 DH |
30 | /* |
31 | * Dump a bad file status record. | |
32 | */ | |
33 | static void xdr_dump_bad(const __be32 *bp) | |
34 | { | |
35 | __be32 x[4]; | |
36 | int i; | |
37 | ||
38 | pr_notice("AFS XDR: Bad status record\n"); | |
39 | for (i = 0; i < 5 * 4 * 4; i += 16) { | |
40 | memcpy(x, bp, 16); | |
41 | bp += 4; | |
42 | pr_notice("%03x: %08x %08x %08x %08x\n", | |
43 | i, ntohl(x[0]), ntohl(x[1]), ntohl(x[2]), ntohl(x[3])); | |
44 | } | |
45 | ||
46 | memcpy(x, bp, 4); | |
47 | pr_notice("0x50: %08x\n", ntohl(x[0])); | |
48 | } | |
49 | ||
dd9fbcb8 DH |
50 | /* |
51 | * decode an AFSFetchStatus block | |
52 | */ | |
38355eec DH |
53 | static void xdr_decode_AFSFetchStatus(const __be32 **_bp, |
54 | struct afs_call *call, | |
55 | struct afs_status_cb *scb) | |
dd9fbcb8 DH |
56 | { |
57 | const struct afs_xdr_AFSFetchStatus *xdr = (const void *)*_bp; | |
a58823ac | 58 | struct afs_file_status *status = &scb->status; |
684b0f68 | 59 | bool inline_error = (call->operation_ID == afs_FS_InlineBulkStatus); |
260a9803 | 60 | u64 data_version, size; |
dd9fbcb8 | 61 | u32 type, abort_code; |
c435ee34 | 62 | |
684b0f68 DH |
63 | abort_code = ntohl(xdr->abort_code); |
64 | ||
dd9fbcb8 | 65 | if (xdr->if_version != htonl(AFS_FSTATUS_VERSION)) { |
684b0f68 DH |
66 | if (xdr->if_version == htonl(0) && |
67 | abort_code != 0 && | |
68 | inline_error) { | |
69 | /* The OpenAFS fileserver has a bug in FS.InlineBulkStatus | |
70 | * whereby it doesn't set the interface version in the error | |
71 | * case. | |
72 | */ | |
73 | status->abort_code = abort_code; | |
a38a7558 | 74 | scb->have_error = true; |
38355eec | 75 | goto advance; |
684b0f68 DH |
76 | } |
77 | ||
dd9fbcb8 DH |
78 | pr_warn("Unknown AFSFetchStatus version %u\n", ntohl(xdr->if_version)); |
79 | goto bad; | |
80 | } | |
08e0e7c8 | 81 | |
684b0f68 DH |
82 | if (abort_code != 0 && inline_error) { |
83 | status->abort_code = abort_code; | |
3e0d9892 | 84 | scb->have_error = true; |
38355eec | 85 | goto advance; |
684b0f68 DH |
86 | } |
87 | ||
dd9fbcb8 | 88 | type = ntohl(xdr->type); |
dd9fbcb8 | 89 | switch (type) { |
888b3384 DH |
90 | case AFS_FTYPE_FILE: |
91 | case AFS_FTYPE_DIR: | |
92 | case AFS_FTYPE_SYMLINK: | |
dd9fbcb8 | 93 | status->type = type; |
888b3384 | 94 | break; |
888b3384 | 95 | default: |
dd9fbcb8 | 96 | goto bad; |
888b3384 DH |
97 | } |
98 | ||
a58823ac DH |
99 | status->nlink = ntohl(xdr->nlink); |
100 | status->author = ntohl(xdr->author); | |
101 | status->owner = ntohl(xdr->owner); | |
102 | status->caller_access = ntohl(xdr->caller_access); /* Ticket dependent */ | |
103 | status->anon_access = ntohl(xdr->anon_access); | |
104 | status->mode = ntohl(xdr->mode) & S_IALLUGO; | |
105 | status->group = ntohl(xdr->group); | |
106 | status->lock_count = ntohl(xdr->lock_count); | |
dd9fbcb8 | 107 | |
d4936803 DH |
108 | status->mtime_client.tv_sec = ntohl(xdr->mtime_client); |
109 | status->mtime_client.tv_nsec = 0; | |
110 | status->mtime_server.tv_sec = ntohl(xdr->mtime_server); | |
111 | status->mtime_server.tv_nsec = 0; | |
dd9fbcb8 DH |
112 | |
113 | size = (u64)ntohl(xdr->size_lo); | |
114 | size |= (u64)ntohl(xdr->size_hi) << 32; | |
63a4681f | 115 | status->size = size; |
dd9fbcb8 DH |
116 | |
117 | data_version = (u64)ntohl(xdr->data_version_lo); | |
118 | data_version |= (u64)ntohl(xdr->data_version_hi) << 32; | |
a58823ac | 119 | status->data_version = data_version; |
a38a7558 | 120 | scb->have_status = true; |
c72057b5 | 121 | advance: |
dd9fbcb8 | 122 | *_bp = (const void *)*_bp + sizeof(*xdr); |
38355eec | 123 | return; |
dd9fbcb8 DH |
124 | |
125 | bad: | |
126 | xdr_dump_bad(*_bp); | |
7126ead9 | 127 | afs_protocol_error(call, afs_eproto_bad_status); |
c72057b5 | 128 | goto advance; |
c875c76a DH |
129 | } |
130 | ||
78107055 DH |
131 | static time64_t xdr_decode_expiry(struct afs_call *call, u32 expiry) |
132 | { | |
133 | return ktime_divns(call->reply_time, NSEC_PER_SEC) + expiry; | |
134 | } | |
135 | ||
a58823ac DH |
136 | static void xdr_decode_AFSCallBack(const __be32 **_bp, |
137 | struct afs_call *call, | |
138 | struct afs_status_cb *scb) | |
78107055 | 139 | { |
a58823ac | 140 | struct afs_callback *cb = &scb->callback; |
78107055 DH |
141 | const __be32 *bp = *_bp; |
142 | ||
7c712458 | 143 | bp++; /* version */ |
78107055 | 144 | cb->expires_at = xdr_decode_expiry(call, ntohl(*bp++)); |
7c712458 | 145 | bp++; /* type */ |
a58823ac | 146 | scb->have_cb = true; |
78107055 DH |
147 | *_bp = bp; |
148 | } | |
149 | ||
1da177e4 | 150 | /* |
08e0e7c8 | 151 | * decode an AFSVolSync block |
1da177e4 | 152 | */ |
08e0e7c8 DH |
153 | static void xdr_decode_AFSVolSync(const __be32 **_bp, |
154 | struct afs_volsync *volsync) | |
1da177e4 | 155 | { |
08e0e7c8 | 156 | const __be32 *bp = *_bp; |
30062bd1 | 157 | u32 creation; |
1da177e4 | 158 | |
30062bd1 | 159 | creation = ntohl(*bp++); |
08e0e7c8 DH |
160 | bp++; /* spare2 */ |
161 | bp++; /* spare3 */ | |
162 | bp++; /* spare4 */ | |
163 | bp++; /* spare5 */ | |
164 | bp++; /* spare6 */ | |
165 | *_bp = bp; | |
30062bd1 DH |
166 | |
167 | if (volsync) | |
168 | volsync->creation = creation; | |
08e0e7c8 | 169 | } |
1da177e4 | 170 | |
31143d5d DH |
171 | /* |
172 | * encode the requested attributes into an AFSStoreStatus block | |
173 | */ | |
174 | static void xdr_encode_AFS_StoreStatus(__be32 **_bp, struct iattr *attr) | |
175 | { | |
176 | __be32 *bp = *_bp; | |
177 | u32 mask = 0, mtime = 0, owner = 0, group = 0, mode = 0; | |
178 | ||
179 | mask = 0; | |
180 | if (attr->ia_valid & ATTR_MTIME) { | |
181 | mask |= AFS_SET_MTIME; | |
182 | mtime = attr->ia_mtime.tv_sec; | |
183 | } | |
184 | ||
185 | if (attr->ia_valid & ATTR_UID) { | |
186 | mask |= AFS_SET_OWNER; | |
a0a5386a | 187 | owner = from_kuid(&init_user_ns, attr->ia_uid); |
31143d5d DH |
188 | } |
189 | ||
190 | if (attr->ia_valid & ATTR_GID) { | |
191 | mask |= AFS_SET_GROUP; | |
a0a5386a | 192 | group = from_kgid(&init_user_ns, attr->ia_gid); |
31143d5d DH |
193 | } |
194 | ||
195 | if (attr->ia_valid & ATTR_MODE) { | |
196 | mask |= AFS_SET_MODE; | |
197 | mode = attr->ia_mode & S_IALLUGO; | |
198 | } | |
199 | ||
200 | *bp++ = htonl(mask); | |
201 | *bp++ = htonl(mtime); | |
202 | *bp++ = htonl(owner); | |
203 | *bp++ = htonl(group); | |
204 | *bp++ = htonl(mode); | |
205 | *bp++ = 0; /* segment size */ | |
206 | *_bp = bp; | |
207 | } | |
208 | ||
45222b9e DH |
209 | /* |
210 | * decode an AFSFetchVolumeStatus block | |
211 | */ | |
212 | static void xdr_decode_AFSFetchVolumeStatus(const __be32 **_bp, | |
213 | struct afs_volume_status *vs) | |
214 | { | |
215 | const __be32 *bp = *_bp; | |
216 | ||
217 | vs->vid = ntohl(*bp++); | |
218 | vs->parent_id = ntohl(*bp++); | |
219 | vs->online = ntohl(*bp++); | |
220 | vs->in_service = ntohl(*bp++); | |
221 | vs->blessed = ntohl(*bp++); | |
222 | vs->needs_salvage = ntohl(*bp++); | |
223 | vs->type = ntohl(*bp++); | |
224 | vs->min_quota = ntohl(*bp++); | |
225 | vs->max_quota = ntohl(*bp++); | |
226 | vs->blocks_in_use = ntohl(*bp++); | |
227 | vs->part_blocks_avail = ntohl(*bp++); | |
228 | vs->part_max_blocks = ntohl(*bp++); | |
30062bd1 DH |
229 | vs->vol_copy_date = 0; |
230 | vs->vol_backup_date = 0; | |
45222b9e DH |
231 | *_bp = bp; |
232 | } | |
233 | ||
08e0e7c8 DH |
234 | /* |
235 | * deliver reply data to an FS.FetchStatus | |
236 | */ | |
e49c7b2f | 237 | static int afs_deliver_fs_fetch_status(struct afs_call *call) |
08e0e7c8 | 238 | { |
e49c7b2f DH |
239 | struct afs_operation *op = call->op; |
240 | struct afs_vnode_param *vp = &op->file[op->fetch_status.which]; | |
08e0e7c8 | 241 | const __be32 *bp; |
372ee163 | 242 | int ret; |
1da177e4 | 243 | |
d001648e | 244 | ret = afs_transfer_reply(call); |
372ee163 DH |
245 | if (ret < 0) |
246 | return ret; | |
1da177e4 | 247 | |
08e0e7c8 DH |
248 | /* unmarshall the reply once we've received all of it */ |
249 | bp = call->buffer; | |
e49c7b2f DH |
250 | xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); |
251 | xdr_decode_AFSCallBack(&bp, call, &vp->scb); | |
252 | xdr_decode_AFSVolSync(&bp, &op->volsync); | |
1da177e4 | 253 | |
08e0e7c8 DH |
254 | _leave(" = 0 [done]"); |
255 | return 0; | |
ec26815a | 256 | } |
08e0e7c8 DH |
257 | |
258 | /* | |
259 | * FS.FetchStatus operation type | |
260 | */ | |
e49c7b2f DH |
261 | static const struct afs_call_type afs_RXFSFetchStatus = { |
262 | .name = "FS.FetchStatus", | |
025db80c | 263 | .op = afs_FS_FetchStatus, |
e49c7b2f | 264 | .deliver = afs_deliver_fs_fetch_status, |
08e0e7c8 DH |
265 | .destructor = afs_flat_call_destructor, |
266 | }; | |
1da177e4 | 267 | |
1da177e4 LT |
268 | /* |
269 | * fetch the status information for a file | |
270 | */ | |
e49c7b2f | 271 | void afs_fs_fetch_status(struct afs_operation *op) |
1da177e4 | 272 | { |
e49c7b2f | 273 | struct afs_vnode_param *vp = &op->file[op->fetch_status.which]; |
08e0e7c8 | 274 | struct afs_call *call; |
1da177e4 LT |
275 | __be32 *bp; |
276 | ||
3b6492df | 277 | _enter(",%x,{%llx:%llu},,", |
e49c7b2f | 278 | key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
1da177e4 | 279 | |
e49c7b2f | 280 | call = afs_alloc_flat_call(op->net, &afs_RXFSFetchStatus, |
5cf9dd55 | 281 | 16, (21 + 3 + 6) * 4); |
e49c7b2f DH |
282 | if (!call) |
283 | return afs_op_nomem(op); | |
1da177e4 LT |
284 | |
285 | /* marshall the parameters */ | |
08e0e7c8 | 286 | bp = call->request; |
1da177e4 | 287 | bp[0] = htonl(FSFETCHSTATUS); |
e49c7b2f DH |
288 | bp[1] = htonl(vp->fid.vid); |
289 | bp[2] = htonl(vp->fid.vnode); | |
290 | bp[3] = htonl(vp->fid.unique); | |
1da177e4 | 291 | |
e49c7b2f DH |
292 | trace_afs_make_fs_call(call, &vp->fid); |
293 | afs_make_op_call(op, call, GFP_NOFS); | |
ec26815a | 294 | } |
1da177e4 | 295 | |
1da177e4 | 296 | /* |
08e0e7c8 | 297 | * deliver reply data to an FS.FetchData |
1da177e4 | 298 | */ |
d001648e | 299 | static int afs_deliver_fs_fetch_data(struct afs_call *call) |
1da177e4 | 300 | { |
e49c7b2f DH |
301 | struct afs_operation *op = call->op; |
302 | struct afs_vnode_param *vp = &op->file[0]; | |
303 | struct afs_read *req = op->fetch.req; | |
08e0e7c8 | 304 | const __be32 *bp; |
196ee9cd | 305 | unsigned int size; |
1da177e4 | 306 | int ret; |
1da177e4 | 307 | |
12bdcf33 | 308 | _enter("{%u,%zu/%llu}", |
fc276122 | 309 | call->unmarshall, iov_iter_count(call->iter), req->actual_len); |
08e0e7c8 DH |
310 | |
311 | switch (call->unmarshall) { | |
312 | case 0: | |
196ee9cd | 313 | req->actual_len = 0; |
12bdcf33 DH |
314 | req->index = 0; |
315 | req->offset = req->pos & (PAGE_SIZE - 1); | |
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 | } |
29881608 | 323 | /* Fall through */ |
08e0e7c8 | 324 | |
29881608 | 325 | /* extract the returned data length */ |
12bdcf33 | 326 | case 1: |
08e0e7c8 | 327 | _debug("extract data length"); |
12bdcf33 | 328 | ret = afs_extract_data(call, true); |
372ee163 DH |
329 | if (ret < 0) |
330 | return ret; | |
1da177e4 | 331 | |
12bdcf33 | 332 | req->actual_len = be64_to_cpu(call->tmp64); |
196ee9cd | 333 | _debug("DATA length: %llu", req->actual_len); |
12bdcf33 DH |
334 | req->remain = min(req->len, req->actual_len); |
335 | if (req->remain == 0) | |
196ee9cd | 336 | goto no_more_data; |
12bdcf33 | 337 | |
08e0e7c8 DH |
338 | call->unmarshall++; |
339 | ||
196ee9cd | 340 | begin_page: |
6db3ac3c | 341 | ASSERTCMP(req->index, <, req->nr_pages); |
12bdcf33 DH |
342 | if (req->remain > PAGE_SIZE - req->offset) |
343 | size = PAGE_SIZE - req->offset; | |
196ee9cd DH |
344 | else |
345 | size = req->remain; | |
12bdcf33 DH |
346 | call->bvec[0].bv_len = size; |
347 | call->bvec[0].bv_offset = req->offset; | |
348 | call->bvec[0].bv_page = req->pages[req->index]; | |
fc276122 | 349 | iov_iter_bvec(&call->def_iter, READ, call->bvec, 1, size); |
12bdcf33 | 350 | ASSERTCMP(size, <=, PAGE_SIZE); |
29881608 | 351 | /* Fall through */ |
196ee9cd | 352 | |
29881608 | 353 | /* extract the returned data */ |
12bdcf33 DH |
354 | case 2: |
355 | _debug("extract data %zu/%llu", | |
fc276122 | 356 | iov_iter_count(call->iter), req->remain); |
196ee9cd | 357 | |
12bdcf33 | 358 | ret = afs_extract_data(call, true); |
196ee9cd DH |
359 | if (ret < 0) |
360 | return ret; | |
12bdcf33 DH |
361 | req->remain -= call->bvec[0].bv_len; |
362 | req->offset += call->bvec[0].bv_len; | |
363 | ASSERTCMP(req->offset, <=, PAGE_SIZE); | |
364 | if (req->offset == PAGE_SIZE) { | |
365 | req->offset = 0; | |
29f06985 | 366 | req->index++; |
12bdcf33 | 367 | if (req->remain > 0) |
196ee9cd | 368 | goto begin_page; |
08e0e7c8 | 369 | } |
12bdcf33 DH |
370 | |
371 | ASSERTCMP(req->remain, ==, 0); | |
372 | if (req->actual_len <= req->len) | |
373 | goto no_more_data; | |
6db3ac3c DH |
374 | |
375 | /* Discard any excess data the server gave us */ | |
23a28913 | 376 | afs_extract_discard(call, req->actual_len - req->len); |
12bdcf33 | 377 | call->unmarshall = 3; |
e690c9e3 | 378 | /* Fall through */ |
29881608 | 379 | |
12bdcf33 DH |
380 | case 3: |
381 | _debug("extract discard %zu/%llu", | |
fc276122 | 382 | iov_iter_count(call->iter), req->actual_len - req->len); |
12bdcf33 DH |
383 | |
384 | ret = afs_extract_data(call, true); | |
6db3ac3c DH |
385 | if (ret < 0) |
386 | return ret; | |
1da177e4 | 387 | |
196ee9cd | 388 | no_more_data: |
12bdcf33 DH |
389 | call->unmarshall = 4; |
390 | afs_extract_to_buf(call, (21 + 3 + 6) * 4); | |
29881608 | 391 | /* Fall through */ |
1da177e4 | 392 | |
29881608 | 393 | /* extract the metadata */ |
12bdcf33 DH |
394 | case 4: |
395 | ret = afs_extract_data(call, false); | |
372ee163 DH |
396 | if (ret < 0) |
397 | return ret; | |
08e0e7c8 DH |
398 | |
399 | bp = call->buffer; | |
e49c7b2f DH |
400 | xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); |
401 | xdr_decode_AFSCallBack(&bp, call, &vp->scb); | |
402 | xdr_decode_AFSVolSync(&bp, &op->volsync); | |
08e0e7c8 | 403 | |
e49c7b2f DH |
404 | req->data_version = vp->scb.status.data_version; |
405 | req->file_size = vp->scb.status.size; | |
a58823ac | 406 | |
08e0e7c8 | 407 | call->unmarshall++; |
1da177e4 | 408 | |
12bdcf33 | 409 | case 5: |
08e0e7c8 | 410 | break; |
1da177e4 LT |
411 | } |
412 | ||
6db3ac3c | 413 | for (; req->index < req->nr_pages; req->index++) { |
12bdcf33 | 414 | if (req->offset < PAGE_SIZE) |
6db3ac3c | 415 | zero_user_segment(req->pages[req->index], |
12bdcf33 | 416 | req->offset, PAGE_SIZE); |
12bdcf33 | 417 | req->offset = 0; |
416351f2 DH |
418 | } |
419 | ||
9d1be4f4 DH |
420 | if (req->page_done) |
421 | for (req->index = 0; req->index < req->nr_pages; req->index++) | |
422 | req->page_done(req); | |
423 | ||
08e0e7c8 DH |
424 | _leave(" = 0 [done]"); |
425 | return 0; | |
ec26815a | 426 | } |
1da177e4 | 427 | |
1da177e4 | 428 | /* |
08e0e7c8 | 429 | * FS.FetchData operation type |
1da177e4 | 430 | */ |
08e0e7c8 | 431 | static const struct afs_call_type afs_RXFSFetchData = { |
00d3b7a4 | 432 | .name = "FS.FetchData", |
025db80c | 433 | .op = afs_FS_FetchData, |
08e0e7c8 | 434 | .deliver = afs_deliver_fs_fetch_data, |
e49c7b2f | 435 | .destructor = afs_flat_call_destructor, |
08e0e7c8 DH |
436 | }; |
437 | ||
b9b1f8d5 DH |
438 | static const struct afs_call_type afs_RXFSFetchData64 = { |
439 | .name = "FS.FetchData64", | |
025db80c | 440 | .op = afs_FS_FetchData64, |
b9b1f8d5 | 441 | .deliver = afs_deliver_fs_fetch_data, |
e49c7b2f | 442 | .destructor = afs_flat_call_destructor, |
b9b1f8d5 DH |
443 | }; |
444 | ||
445 | /* | |
446 | * fetch data from a very large file | |
447 | */ | |
e49c7b2f | 448 | static void afs_fs_fetch_data64(struct afs_operation *op) |
b9b1f8d5 | 449 | { |
e49c7b2f DH |
450 | struct afs_vnode_param *vp = &op->file[0]; |
451 | struct afs_read *req = op->fetch.req; | |
b9b1f8d5 DH |
452 | struct afs_call *call; |
453 | __be32 *bp; | |
454 | ||
455 | _enter(""); | |
456 | ||
e49c7b2f | 457 | call = afs_alloc_flat_call(op->net, &afs_RXFSFetchData64, 32, (21 + 3 + 6) * 4); |
b9b1f8d5 | 458 | if (!call) |
e49c7b2f | 459 | return afs_op_nomem(op); |
b9b1f8d5 DH |
460 | |
461 | /* marshall the parameters */ | |
462 | bp = call->request; | |
463 | bp[0] = htonl(FSFETCHDATA64); | |
e49c7b2f DH |
464 | bp[1] = htonl(vp->fid.vid); |
465 | bp[2] = htonl(vp->fid.vnode); | |
466 | bp[3] = htonl(vp->fid.unique); | |
196ee9cd DH |
467 | bp[4] = htonl(upper_32_bits(req->pos)); |
468 | bp[5] = htonl(lower_32_bits(req->pos)); | |
b9b1f8d5 | 469 | bp[6] = 0; |
196ee9cd | 470 | bp[7] = htonl(lower_32_bits(req->len)); |
b9b1f8d5 | 471 | |
e49c7b2f DH |
472 | trace_afs_make_fs_call(call, &vp->fid); |
473 | afs_make_op_call(op, call, GFP_NOFS); | |
b9b1f8d5 DH |
474 | } |
475 | ||
08e0e7c8 DH |
476 | /* |
477 | * fetch data from a file | |
478 | */ | |
e49c7b2f | 479 | void afs_fs_fetch_data(struct afs_operation *op) |
1da177e4 | 480 | { |
e49c7b2f | 481 | struct afs_vnode_param *vp = &op->file[0]; |
08e0e7c8 | 482 | struct afs_call *call; |
e49c7b2f | 483 | struct afs_read *req = op->fetch.req; |
1da177e4 LT |
484 | __be32 *bp; |
485 | ||
196ee9cd DH |
486 | if (upper_32_bits(req->pos) || |
487 | upper_32_bits(req->len) || | |
488 | upper_32_bits(req->pos + req->len)) | |
e49c7b2f | 489 | return afs_fs_fetch_data64(op); |
b9b1f8d5 | 490 | |
08e0e7c8 | 491 | _enter(""); |
1da177e4 | 492 | |
e49c7b2f | 493 | call = afs_alloc_flat_call(op->net, &afs_RXFSFetchData, 24, (21 + 3 + 6) * 4); |
08e0e7c8 | 494 | if (!call) |
e49c7b2f | 495 | return afs_op_nomem(op); |
1da177e4 LT |
496 | |
497 | /* marshall the parameters */ | |
08e0e7c8 DH |
498 | bp = call->request; |
499 | bp[0] = htonl(FSFETCHDATA); | |
e49c7b2f DH |
500 | bp[1] = htonl(vp->fid.vid); |
501 | bp[2] = htonl(vp->fid.vnode); | |
502 | bp[3] = htonl(vp->fid.unique); | |
196ee9cd DH |
503 | bp[4] = htonl(lower_32_bits(req->pos)); |
504 | bp[5] = htonl(lower_32_bits(req->len)); | |
1da177e4 | 505 | |
e49c7b2f DH |
506 | trace_afs_make_fs_call(call, &vp->fid); |
507 | afs_make_op_call(op, call, GFP_NOFS); | |
ec26815a | 508 | } |
260a9803 DH |
509 | |
510 | /* | |
511 | * deliver reply data to an FS.CreateFile or an FS.MakeDir | |
512 | */ | |
d001648e | 513 | static int afs_deliver_fs_create_vnode(struct afs_call *call) |
260a9803 | 514 | { |
e49c7b2f DH |
515 | struct afs_operation *op = call->op; |
516 | struct afs_vnode_param *dvp = &op->file[0]; | |
517 | struct afs_vnode_param *vp = &op->file[1]; | |
260a9803 | 518 | const __be32 *bp; |
372ee163 | 519 | int ret; |
260a9803 | 520 | |
d001648e | 521 | ret = afs_transfer_reply(call); |
372ee163 DH |
522 | if (ret < 0) |
523 | return ret; | |
260a9803 DH |
524 | |
525 | /* unmarshall the reply once we've received all of it */ | |
526 | bp = call->buffer; | |
e49c7b2f DH |
527 | xdr_decode_AFSFid(&bp, &op->file[1].fid); |
528 | xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); | |
529 | xdr_decode_AFSFetchStatus(&bp, call, &dvp->scb); | |
530 | xdr_decode_AFSCallBack(&bp, call, &vp->scb); | |
531 | xdr_decode_AFSVolSync(&bp, &op->volsync); | |
260a9803 DH |
532 | |
533 | _leave(" = 0 [done]"); | |
534 | return 0; | |
535 | } | |
536 | ||
537 | /* | |
538 | * FS.CreateFile and FS.MakeDir operation type | |
539 | */ | |
025db80c DH |
540 | static const struct afs_call_type afs_RXFSCreateFile = { |
541 | .name = "FS.CreateFile", | |
542 | .op = afs_FS_CreateFile, | |
543 | .deliver = afs_deliver_fs_create_vnode, | |
544 | .destructor = afs_flat_call_destructor, | |
545 | }; | |
546 | ||
e49c7b2f DH |
547 | /* |
548 | * Create a file. | |
549 | */ | |
550 | void afs_fs_create_file(struct afs_operation *op) | |
551 | { | |
552 | const struct qstr *name = &op->dentry->d_name; | |
553 | struct afs_vnode_param *dvp = &op->file[0]; | |
554 | struct afs_call *call; | |
555 | size_t namesz, reqsz, padsz; | |
556 | __be32 *bp; | |
557 | ||
558 | _enter(""); | |
559 | ||
560 | namesz = name->len; | |
561 | padsz = (4 - (namesz & 3)) & 3; | |
562 | reqsz = (5 * 4) + namesz + padsz + (6 * 4); | |
563 | ||
564 | call = afs_alloc_flat_call(op->net, &afs_RXFSCreateFile, | |
565 | reqsz, (3 + 21 + 21 + 3 + 6) * 4); | |
566 | if (!call) | |
567 | return afs_op_nomem(op); | |
568 | ||
569 | /* marshall the parameters */ | |
570 | bp = call->request; | |
571 | *bp++ = htonl(FSCREATEFILE); | |
572 | *bp++ = htonl(dvp->fid.vid); | |
573 | *bp++ = htonl(dvp->fid.vnode); | |
574 | *bp++ = htonl(dvp->fid.unique); | |
575 | *bp++ = htonl(namesz); | |
576 | memcpy(bp, name->name, namesz); | |
577 | bp = (void *) bp + namesz; | |
578 | if (padsz > 0) { | |
579 | memset(bp, 0, padsz); | |
580 | bp = (void *) bp + padsz; | |
581 | } | |
582 | *bp++ = htonl(AFS_SET_MODE | AFS_SET_MTIME); | |
583 | *bp++ = htonl(op->mtime.tv_sec); /* mtime */ | |
584 | *bp++ = 0; /* owner */ | |
585 | *bp++ = 0; /* group */ | |
586 | *bp++ = htonl(op->create.mode & S_IALLUGO); /* unix mode */ | |
587 | *bp++ = 0; /* segment size */ | |
588 | ||
589 | trace_afs_make_fs_call1(call, &dvp->fid, name); | |
590 | afs_make_op_call(op, call, GFP_NOFS); | |
591 | } | |
592 | ||
025db80c DH |
593 | static const struct afs_call_type afs_RXFSMakeDir = { |
594 | .name = "FS.MakeDir", | |
595 | .op = afs_FS_MakeDir, | |
260a9803 | 596 | .deliver = afs_deliver_fs_create_vnode, |
260a9803 DH |
597 | .destructor = afs_flat_call_destructor, |
598 | }; | |
599 | ||
600 | /* | |
e49c7b2f | 601 | * Create a new directory |
260a9803 | 602 | */ |
e49c7b2f | 603 | void afs_fs_make_dir(struct afs_operation *op) |
260a9803 | 604 | { |
e49c7b2f DH |
605 | const struct qstr *name = &op->dentry->d_name; |
606 | struct afs_vnode_param *dvp = &op->file[0]; | |
260a9803 DH |
607 | struct afs_call *call; |
608 | size_t namesz, reqsz, padsz; | |
609 | __be32 *bp; | |
610 | ||
611 | _enter(""); | |
612 | ||
e49c7b2f | 613 | namesz = name->len; |
260a9803 DH |
614 | padsz = (4 - (namesz & 3)) & 3; |
615 | reqsz = (5 * 4) + namesz + padsz + (6 * 4); | |
616 | ||
e49c7b2f DH |
617 | call = afs_alloc_flat_call(op->net, &afs_RXFSMakeDir, |
618 | reqsz, (3 + 21 + 21 + 3 + 6) * 4); | |
260a9803 | 619 | if (!call) |
e49c7b2f | 620 | return afs_op_nomem(op); |
260a9803 DH |
621 | |
622 | /* marshall the parameters */ | |
623 | bp = call->request; | |
e49c7b2f DH |
624 | *bp++ = htonl(FSMAKEDIR); |
625 | *bp++ = htonl(dvp->fid.vid); | |
626 | *bp++ = htonl(dvp->fid.vnode); | |
627 | *bp++ = htonl(dvp->fid.unique); | |
260a9803 | 628 | *bp++ = htonl(namesz); |
e49c7b2f | 629 | memcpy(bp, name->name, namesz); |
260a9803 DH |
630 | bp = (void *) bp + namesz; |
631 | if (padsz > 0) { | |
632 | memset(bp, 0, padsz); | |
633 | bp = (void *) bp + padsz; | |
634 | } | |
ab94f5d0 | 635 | *bp++ = htonl(AFS_SET_MODE | AFS_SET_MTIME); |
e49c7b2f | 636 | *bp++ = htonl(op->mtime.tv_sec); /* mtime */ |
260a9803 DH |
637 | *bp++ = 0; /* owner */ |
638 | *bp++ = 0; /* group */ | |
e49c7b2f | 639 | *bp++ = htonl(op->create.mode & S_IALLUGO); /* unix mode */ |
260a9803 DH |
640 | *bp++ = 0; /* segment size */ |
641 | ||
e49c7b2f DH |
642 | trace_afs_make_fs_call1(call, &dvp->fid, name); |
643 | afs_make_op_call(op, call, GFP_NOFS); | |
260a9803 DH |
644 | } |
645 | ||
646 | /* | |
e49c7b2f | 647 | * Deliver reply data to any operation that returns status and volume sync. |
260a9803 | 648 | */ |
e49c7b2f | 649 | static int afs_deliver_fs_file_status_and_vol(struct afs_call *call) |
260a9803 | 650 | { |
e49c7b2f DH |
651 | struct afs_operation *op = call->op; |
652 | struct afs_vnode_param *vp = &op->file[0]; | |
260a9803 | 653 | const __be32 *bp; |
372ee163 | 654 | int ret; |
260a9803 | 655 | |
d001648e | 656 | ret = afs_transfer_reply(call); |
372ee163 DH |
657 | if (ret < 0) |
658 | return ret; | |
260a9803 DH |
659 | |
660 | /* unmarshall the reply once we've received all of it */ | |
661 | bp = call->buffer; | |
e49c7b2f DH |
662 | xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); |
663 | xdr_decode_AFSVolSync(&bp, &op->volsync); | |
260a9803 DH |
664 | |
665 | _leave(" = 0 [done]"); | |
666 | return 0; | |
667 | } | |
668 | ||
669 | /* | |
e49c7b2f | 670 | * FS.RemoveFile operation type |
260a9803 | 671 | */ |
025db80c DH |
672 | static const struct afs_call_type afs_RXFSRemoveFile = { |
673 | .name = "FS.RemoveFile", | |
674 | .op = afs_FS_RemoveFile, | |
e49c7b2f | 675 | .deliver = afs_deliver_fs_file_status_and_vol, |
025db80c DH |
676 | .destructor = afs_flat_call_destructor, |
677 | }; | |
678 | ||
e49c7b2f DH |
679 | /* |
680 | * Remove a file. | |
681 | */ | |
682 | void afs_fs_remove_file(struct afs_operation *op) | |
683 | { | |
684 | const struct qstr *name = &op->dentry->d_name; | |
685 | struct afs_vnode_param *dvp = &op->file[0]; | |
686 | struct afs_call *call; | |
687 | size_t namesz, reqsz, padsz; | |
688 | __be32 *bp; | |
689 | ||
690 | _enter(""); | |
691 | ||
692 | namesz = name->len; | |
693 | padsz = (4 - (namesz & 3)) & 3; | |
694 | reqsz = (5 * 4) + namesz + padsz; | |
695 | ||
696 | call = afs_alloc_flat_call(op->net, &afs_RXFSRemoveFile, | |
697 | reqsz, (21 + 6) * 4); | |
698 | if (!call) | |
699 | return afs_op_nomem(op); | |
700 | ||
701 | /* marshall the parameters */ | |
702 | bp = call->request; | |
703 | *bp++ = htonl(FSREMOVEFILE); | |
704 | *bp++ = htonl(dvp->fid.vid); | |
705 | *bp++ = htonl(dvp->fid.vnode); | |
706 | *bp++ = htonl(dvp->fid.unique); | |
707 | *bp++ = htonl(namesz); | |
708 | memcpy(bp, name->name, namesz); | |
709 | bp = (void *) bp + namesz; | |
710 | if (padsz > 0) { | |
711 | memset(bp, 0, padsz); | |
712 | bp = (void *) bp + padsz; | |
713 | } | |
714 | ||
715 | trace_afs_make_fs_call1(call, &dvp->fid, name); | |
716 | afs_make_op_call(op, call, GFP_NOFS); | |
717 | } | |
718 | ||
025db80c DH |
719 | static const struct afs_call_type afs_RXFSRemoveDir = { |
720 | .name = "FS.RemoveDir", | |
721 | .op = afs_FS_RemoveDir, | |
e49c7b2f | 722 | .deliver = afs_deliver_fs_file_status_and_vol, |
260a9803 DH |
723 | .destructor = afs_flat_call_destructor, |
724 | }; | |
725 | ||
726 | /* | |
e49c7b2f | 727 | * Remove a directory. |
260a9803 | 728 | */ |
e49c7b2f | 729 | void afs_fs_remove_dir(struct afs_operation *op) |
260a9803 | 730 | { |
e49c7b2f DH |
731 | const struct qstr *name = &op->dentry->d_name; |
732 | struct afs_vnode_param *dvp = &op->file[0]; | |
260a9803 DH |
733 | struct afs_call *call; |
734 | size_t namesz, reqsz, padsz; | |
735 | __be32 *bp; | |
736 | ||
737 | _enter(""); | |
738 | ||
e49c7b2f | 739 | namesz = name->len; |
260a9803 DH |
740 | padsz = (4 - (namesz & 3)) & 3; |
741 | reqsz = (5 * 4) + namesz + padsz; | |
742 | ||
e49c7b2f DH |
743 | call = afs_alloc_flat_call(op->net, &afs_RXFSRemoveDir, |
744 | reqsz, (21 + 6) * 4); | |
260a9803 | 745 | if (!call) |
e49c7b2f | 746 | return afs_op_nomem(op); |
260a9803 DH |
747 | |
748 | /* marshall the parameters */ | |
749 | bp = call->request; | |
e49c7b2f DH |
750 | *bp++ = htonl(FSREMOVEDIR); |
751 | *bp++ = htonl(dvp->fid.vid); | |
752 | *bp++ = htonl(dvp->fid.vnode); | |
753 | *bp++ = htonl(dvp->fid.unique); | |
260a9803 | 754 | *bp++ = htonl(namesz); |
e49c7b2f | 755 | memcpy(bp, name->name, namesz); |
260a9803 DH |
756 | bp = (void *) bp + namesz; |
757 | if (padsz > 0) { | |
758 | memset(bp, 0, padsz); | |
759 | bp = (void *) bp + padsz; | |
760 | } | |
761 | ||
e49c7b2f DH |
762 | trace_afs_make_fs_call1(call, &dvp->fid, name); |
763 | afs_make_op_call(op, call, GFP_NOFS); | |
260a9803 DH |
764 | } |
765 | ||
766 | /* | |
767 | * deliver reply data to an FS.Link | |
768 | */ | |
d001648e | 769 | static int afs_deliver_fs_link(struct afs_call *call) |
260a9803 | 770 | { |
e49c7b2f DH |
771 | struct afs_operation *op = call->op; |
772 | struct afs_vnode_param *dvp = &op->file[0]; | |
773 | struct afs_vnode_param *vp = &op->file[1]; | |
260a9803 | 774 | const __be32 *bp; |
372ee163 | 775 | int ret; |
260a9803 | 776 | |
d001648e | 777 | _enter("{%u}", call->unmarshall); |
260a9803 | 778 | |
d001648e | 779 | ret = afs_transfer_reply(call); |
372ee163 DH |
780 | if (ret < 0) |
781 | return ret; | |
260a9803 DH |
782 | |
783 | /* unmarshall the reply once we've received all of it */ | |
784 | bp = call->buffer; | |
e49c7b2f DH |
785 | xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); |
786 | xdr_decode_AFSFetchStatus(&bp, call, &dvp->scb); | |
787 | xdr_decode_AFSVolSync(&bp, &op->volsync); | |
260a9803 DH |
788 | |
789 | _leave(" = 0 [done]"); | |
790 | return 0; | |
791 | } | |
792 | ||
793 | /* | |
794 | * FS.Link operation type | |
795 | */ | |
796 | static const struct afs_call_type afs_RXFSLink = { | |
797 | .name = "FS.Link", | |
025db80c | 798 | .op = afs_FS_Link, |
260a9803 | 799 | .deliver = afs_deliver_fs_link, |
260a9803 DH |
800 | .destructor = afs_flat_call_destructor, |
801 | }; | |
802 | ||
803 | /* | |
804 | * make a hard link | |
805 | */ | |
e49c7b2f | 806 | void afs_fs_link(struct afs_operation *op) |
260a9803 | 807 | { |
e49c7b2f DH |
808 | const struct qstr *name = &op->dentry->d_name; |
809 | struct afs_vnode_param *dvp = &op->file[0]; | |
810 | struct afs_vnode_param *vp = &op->file[1]; | |
260a9803 DH |
811 | struct afs_call *call; |
812 | size_t namesz, reqsz, padsz; | |
813 | __be32 *bp; | |
814 | ||
815 | _enter(""); | |
816 | ||
e49c7b2f | 817 | namesz = name->len; |
260a9803 DH |
818 | padsz = (4 - (namesz & 3)) & 3; |
819 | reqsz = (5 * 4) + namesz + padsz + (3 * 4); | |
820 | ||
e49c7b2f | 821 | call = afs_alloc_flat_call(op->net, &afs_RXFSLink, reqsz, (21 + 21 + 6) * 4); |
260a9803 | 822 | if (!call) |
e49c7b2f | 823 | return afs_op_nomem(op); |
260a9803 DH |
824 | |
825 | /* marshall the parameters */ | |
826 | bp = call->request; | |
827 | *bp++ = htonl(FSLINK); | |
e49c7b2f DH |
828 | *bp++ = htonl(dvp->fid.vid); |
829 | *bp++ = htonl(dvp->fid.vnode); | |
830 | *bp++ = htonl(dvp->fid.unique); | |
260a9803 | 831 | *bp++ = htonl(namesz); |
e49c7b2f | 832 | memcpy(bp, name->name, namesz); |
260a9803 DH |
833 | bp = (void *) bp + namesz; |
834 | if (padsz > 0) { | |
835 | memset(bp, 0, padsz); | |
836 | bp = (void *) bp + padsz; | |
837 | } | |
e49c7b2f DH |
838 | *bp++ = htonl(vp->fid.vid); |
839 | *bp++ = htonl(vp->fid.vnode); | |
840 | *bp++ = htonl(vp->fid.unique); | |
841 | ||
842 | trace_afs_make_fs_call1(call, &vp->fid, name); | |
843 | afs_make_op_call(op, call, GFP_NOFS); | |
260a9803 DH |
844 | } |
845 | ||
846 | /* | |
847 | * deliver reply data to an FS.Symlink | |
848 | */ | |
d001648e | 849 | static int afs_deliver_fs_symlink(struct afs_call *call) |
260a9803 | 850 | { |
e49c7b2f DH |
851 | struct afs_operation *op = call->op; |
852 | struct afs_vnode_param *dvp = &op->file[0]; | |
853 | struct afs_vnode_param *vp = &op->file[1]; | |
260a9803 | 854 | const __be32 *bp; |
372ee163 | 855 | int ret; |
260a9803 | 856 | |
d001648e | 857 | _enter("{%u}", call->unmarshall); |
260a9803 | 858 | |
d001648e | 859 | ret = afs_transfer_reply(call); |
372ee163 DH |
860 | if (ret < 0) |
861 | return ret; | |
260a9803 DH |
862 | |
863 | /* unmarshall the reply once we've received all of it */ | |
864 | bp = call->buffer; | |
e49c7b2f DH |
865 | xdr_decode_AFSFid(&bp, &vp->fid); |
866 | xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); | |
867 | xdr_decode_AFSFetchStatus(&bp, call, &dvp->scb); | |
868 | xdr_decode_AFSVolSync(&bp, &op->volsync); | |
260a9803 DH |
869 | |
870 | _leave(" = 0 [done]"); | |
871 | return 0; | |
872 | } | |
873 | ||
874 | /* | |
875 | * FS.Symlink operation type | |
876 | */ | |
877 | static const struct afs_call_type afs_RXFSSymlink = { | |
878 | .name = "FS.Symlink", | |
025db80c | 879 | .op = afs_FS_Symlink, |
260a9803 | 880 | .deliver = afs_deliver_fs_symlink, |
260a9803 DH |
881 | .destructor = afs_flat_call_destructor, |
882 | }; | |
883 | ||
884 | /* | |
885 | * create a symbolic link | |
886 | */ | |
e49c7b2f | 887 | void afs_fs_symlink(struct afs_operation *op) |
260a9803 | 888 | { |
e49c7b2f DH |
889 | const struct qstr *name = &op->dentry->d_name; |
890 | struct afs_vnode_param *dvp = &op->file[0]; | |
260a9803 DH |
891 | struct afs_call *call; |
892 | size_t namesz, reqsz, padsz, c_namesz, c_padsz; | |
893 | __be32 *bp; | |
894 | ||
895 | _enter(""); | |
896 | ||
e49c7b2f | 897 | namesz = name->len; |
260a9803 DH |
898 | padsz = (4 - (namesz & 3)) & 3; |
899 | ||
e49c7b2f | 900 | c_namesz = strlen(op->create.symlink); |
260a9803 DH |
901 | c_padsz = (4 - (c_namesz & 3)) & 3; |
902 | ||
903 | reqsz = (6 * 4) + namesz + padsz + c_namesz + c_padsz + (6 * 4); | |
904 | ||
e49c7b2f | 905 | call = afs_alloc_flat_call(op->net, &afs_RXFSSymlink, reqsz, |
260a9803 DH |
906 | (3 + 21 + 21 + 6) * 4); |
907 | if (!call) | |
e49c7b2f | 908 | return afs_op_nomem(op); |
260a9803 DH |
909 | |
910 | /* marshall the parameters */ | |
911 | bp = call->request; | |
912 | *bp++ = htonl(FSSYMLINK); | |
e49c7b2f DH |
913 | *bp++ = htonl(dvp->fid.vid); |
914 | *bp++ = htonl(dvp->fid.vnode); | |
915 | *bp++ = htonl(dvp->fid.unique); | |
260a9803 | 916 | *bp++ = htonl(namesz); |
e49c7b2f | 917 | memcpy(bp, name->name, namesz); |
260a9803 DH |
918 | bp = (void *) bp + namesz; |
919 | if (padsz > 0) { | |
920 | memset(bp, 0, padsz); | |
921 | bp = (void *) bp + padsz; | |
922 | } | |
923 | *bp++ = htonl(c_namesz); | |
e49c7b2f | 924 | memcpy(bp, op->create.symlink, c_namesz); |
260a9803 DH |
925 | bp = (void *) bp + c_namesz; |
926 | if (c_padsz > 0) { | |
927 | memset(bp, 0, c_padsz); | |
928 | bp = (void *) bp + c_padsz; | |
929 | } | |
ab94f5d0 | 930 | *bp++ = htonl(AFS_SET_MODE | AFS_SET_MTIME); |
e49c7b2f | 931 | *bp++ = htonl(op->mtime.tv_sec); /* mtime */ |
260a9803 DH |
932 | *bp++ = 0; /* owner */ |
933 | *bp++ = 0; /* group */ | |
934 | *bp++ = htonl(S_IRWXUGO); /* unix mode */ | |
935 | *bp++ = 0; /* segment size */ | |
936 | ||
e49c7b2f DH |
937 | trace_afs_make_fs_call1(call, &dvp->fid, name); |
938 | afs_make_op_call(op, call, GFP_NOFS); | |
260a9803 DH |
939 | } |
940 | ||
941 | /* | |
942 | * deliver reply data to an FS.Rename | |
943 | */ | |
d001648e | 944 | static int afs_deliver_fs_rename(struct afs_call *call) |
260a9803 | 945 | { |
e49c7b2f DH |
946 | struct afs_operation *op = call->op; |
947 | struct afs_vnode_param *orig_dvp = &op->file[0]; | |
948 | struct afs_vnode_param *new_dvp = &op->file[1]; | |
260a9803 | 949 | const __be32 *bp; |
372ee163 | 950 | int ret; |
260a9803 | 951 | |
d001648e | 952 | ret = afs_transfer_reply(call); |
372ee163 DH |
953 | if (ret < 0) |
954 | return ret; | |
260a9803 | 955 | |
38355eec | 956 | bp = call->buffer; |
b98f0ec9 DH |
957 | /* If the two dirs are the same, we have two copies of the same status |
958 | * report, so we just decode it twice. | |
959 | */ | |
e49c7b2f DH |
960 | xdr_decode_AFSFetchStatus(&bp, call, &orig_dvp->scb); |
961 | xdr_decode_AFSFetchStatus(&bp, call, &new_dvp->scb); | |
962 | xdr_decode_AFSVolSync(&bp, &op->volsync); | |
260a9803 DH |
963 | |
964 | _leave(" = 0 [done]"); | |
965 | return 0; | |
966 | } | |
967 | ||
968 | /* | |
969 | * FS.Rename operation type | |
970 | */ | |
971 | static const struct afs_call_type afs_RXFSRename = { | |
972 | .name = "FS.Rename", | |
025db80c | 973 | .op = afs_FS_Rename, |
260a9803 | 974 | .deliver = afs_deliver_fs_rename, |
260a9803 DH |
975 | .destructor = afs_flat_call_destructor, |
976 | }; | |
977 | ||
978 | /* | |
a58823ac | 979 | * Rename/move a file or directory. |
260a9803 | 980 | */ |
e49c7b2f | 981 | void afs_fs_rename(struct afs_operation *op) |
260a9803 | 982 | { |
e49c7b2f DH |
983 | struct afs_vnode_param *orig_dvp = &op->file[0]; |
984 | struct afs_vnode_param *new_dvp = &op->file[1]; | |
985 | const struct qstr *orig_name = &op->dentry->d_name; | |
986 | const struct qstr *new_name = &op->dentry_2->d_name; | |
260a9803 DH |
987 | struct afs_call *call; |
988 | size_t reqsz, o_namesz, o_padsz, n_namesz, n_padsz; | |
989 | __be32 *bp; | |
990 | ||
991 | _enter(""); | |
992 | ||
e49c7b2f | 993 | o_namesz = orig_name->len; |
260a9803 DH |
994 | o_padsz = (4 - (o_namesz & 3)) & 3; |
995 | ||
e49c7b2f | 996 | n_namesz = new_name->len; |
260a9803 DH |
997 | n_padsz = (4 - (n_namesz & 3)) & 3; |
998 | ||
999 | reqsz = (4 * 4) + | |
1000 | 4 + o_namesz + o_padsz + | |
1001 | (3 * 4) + | |
1002 | 4 + n_namesz + n_padsz; | |
1003 | ||
e49c7b2f | 1004 | call = afs_alloc_flat_call(op->net, &afs_RXFSRename, reqsz, (21 + 21 + 6) * 4); |
260a9803 | 1005 | if (!call) |
e49c7b2f | 1006 | return afs_op_nomem(op); |
260a9803 DH |
1007 | |
1008 | /* marshall the parameters */ | |
1009 | bp = call->request; | |
1010 | *bp++ = htonl(FSRENAME); | |
e49c7b2f DH |
1011 | *bp++ = htonl(orig_dvp->fid.vid); |
1012 | *bp++ = htonl(orig_dvp->fid.vnode); | |
1013 | *bp++ = htonl(orig_dvp->fid.unique); | |
260a9803 | 1014 | *bp++ = htonl(o_namesz); |
e49c7b2f | 1015 | memcpy(bp, orig_name->name, o_namesz); |
260a9803 DH |
1016 | bp = (void *) bp + o_namesz; |
1017 | if (o_padsz > 0) { | |
1018 | memset(bp, 0, o_padsz); | |
1019 | bp = (void *) bp + o_padsz; | |
1020 | } | |
1021 | ||
e49c7b2f DH |
1022 | *bp++ = htonl(new_dvp->fid.vid); |
1023 | *bp++ = htonl(new_dvp->fid.vnode); | |
1024 | *bp++ = htonl(new_dvp->fid.unique); | |
260a9803 | 1025 | *bp++ = htonl(n_namesz); |
e49c7b2f | 1026 | memcpy(bp, new_name->name, n_namesz); |
260a9803 DH |
1027 | bp = (void *) bp + n_namesz; |
1028 | if (n_padsz > 0) { | |
1029 | memset(bp, 0, n_padsz); | |
1030 | bp = (void *) bp + n_padsz; | |
1031 | } | |
1032 | ||
e49c7b2f DH |
1033 | trace_afs_make_fs_call2(call, &orig_dvp->fid, orig_name, new_name); |
1034 | afs_make_op_call(op, call, GFP_NOFS); | |
260a9803 | 1035 | } |
31143d5d DH |
1036 | |
1037 | /* | |
e49c7b2f | 1038 | * Deliver reply data to FS.StoreData or FS.StoreStatus |
31143d5d | 1039 | */ |
d001648e | 1040 | static int afs_deliver_fs_store_data(struct afs_call *call) |
31143d5d | 1041 | { |
e49c7b2f DH |
1042 | struct afs_operation *op = call->op; |
1043 | struct afs_vnode_param *vp = &op->file[0]; | |
31143d5d | 1044 | const __be32 *bp; |
372ee163 | 1045 | int ret; |
31143d5d | 1046 | |
d001648e | 1047 | _enter(""); |
31143d5d | 1048 | |
d001648e | 1049 | ret = afs_transfer_reply(call); |
372ee163 DH |
1050 | if (ret < 0) |
1051 | return ret; | |
31143d5d DH |
1052 | |
1053 | /* unmarshall the reply once we've received all of it */ | |
1054 | bp = call->buffer; | |
e49c7b2f DH |
1055 | xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); |
1056 | xdr_decode_AFSVolSync(&bp, &op->volsync); | |
31143d5d | 1057 | |
31143d5d DH |
1058 | _leave(" = 0 [done]"); |
1059 | return 0; | |
1060 | } | |
1061 | ||
1062 | /* | |
1063 | * FS.StoreData operation type | |
1064 | */ | |
1065 | static const struct afs_call_type afs_RXFSStoreData = { | |
1066 | .name = "FS.StoreData", | |
025db80c | 1067 | .op = afs_FS_StoreData, |
31143d5d | 1068 | .deliver = afs_deliver_fs_store_data, |
31143d5d DH |
1069 | .destructor = afs_flat_call_destructor, |
1070 | }; | |
1071 | ||
b9b1f8d5 DH |
1072 | static const struct afs_call_type afs_RXFSStoreData64 = { |
1073 | .name = "FS.StoreData64", | |
025db80c | 1074 | .op = afs_FS_StoreData64, |
b9b1f8d5 | 1075 | .deliver = afs_deliver_fs_store_data, |
b9b1f8d5 DH |
1076 | .destructor = afs_flat_call_destructor, |
1077 | }; | |
1078 | ||
1079 | /* | |
1080 | * store a set of pages to a very large file | |
1081 | */ | |
e49c7b2f DH |
1082 | static void afs_fs_store_data64(struct afs_operation *op, |
1083 | loff_t pos, loff_t size, loff_t i_size) | |
b9b1f8d5 | 1084 | { |
e49c7b2f | 1085 | struct afs_vnode_param *vp = &op->file[0]; |
b9b1f8d5 DH |
1086 | struct afs_call *call; |
1087 | __be32 *bp; | |
1088 | ||
3b6492df | 1089 | _enter(",%x,{%llx:%llu},,", |
e49c7b2f | 1090 | key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
b9b1f8d5 | 1091 | |
e49c7b2f | 1092 | call = afs_alloc_flat_call(op->net, &afs_RXFSStoreData64, |
b9b1f8d5 DH |
1093 | (4 + 6 + 3 * 2) * 4, |
1094 | (21 + 6) * 4); | |
1095 | if (!call) | |
e49c7b2f | 1096 | return afs_op_nomem(op); |
b9b1f8d5 | 1097 | |
b9b1f8d5 | 1098 | call->send_pages = true; |
b9b1f8d5 DH |
1099 | |
1100 | /* marshall the parameters */ | |
1101 | bp = call->request; | |
1102 | *bp++ = htonl(FSSTOREDATA64); | |
e49c7b2f DH |
1103 | *bp++ = htonl(vp->fid.vid); |
1104 | *bp++ = htonl(vp->fid.vnode); | |
1105 | *bp++ = htonl(vp->fid.unique); | |
b9b1f8d5 | 1106 | |
ab94f5d0 | 1107 | *bp++ = htonl(AFS_SET_MTIME); /* mask */ |
e49c7b2f | 1108 | *bp++ = htonl(op->mtime.tv_sec); /* mtime */ |
b9b1f8d5 DH |
1109 | *bp++ = 0; /* owner */ |
1110 | *bp++ = 0; /* group */ | |
1111 | *bp++ = 0; /* unix mode */ | |
1112 | *bp++ = 0; /* segment size */ | |
1113 | ||
e49c7b2f DH |
1114 | *bp++ = htonl(upper_32_bits(pos)); |
1115 | *bp++ = htonl(lower_32_bits(pos)); | |
1116 | *bp++ = htonl(upper_32_bits(size)); | |
1117 | *bp++ = htonl(lower_32_bits(size)); | |
1118 | *bp++ = htonl(upper_32_bits(i_size)); | |
1119 | *bp++ = htonl(lower_32_bits(i_size)); | |
1120 | ||
1121 | trace_afs_make_fs_call(call, &vp->fid); | |
1122 | afs_make_op_call(op, call, GFP_NOFS); | |
b9b1f8d5 DH |
1123 | } |
1124 | ||
31143d5d DH |
1125 | /* |
1126 | * store a set of pages | |
1127 | */ | |
e49c7b2f | 1128 | void afs_fs_store_data(struct afs_operation *op) |
31143d5d | 1129 | { |
e49c7b2f | 1130 | struct afs_vnode_param *vp = &op->file[0]; |
31143d5d DH |
1131 | struct afs_call *call; |
1132 | loff_t size, pos, i_size; | |
1133 | __be32 *bp; | |
1134 | ||
3b6492df | 1135 | _enter(",%x,{%llx:%llu},,", |
e49c7b2f | 1136 | key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
31143d5d | 1137 | |
e49c7b2f DH |
1138 | size = (loff_t)op->store.last_to - (loff_t)op->store.first_offset; |
1139 | if (op->store.first != op->store.last) | |
1140 | size += (loff_t)(op->store.last - op->store.first) << PAGE_SHIFT; | |
1141 | pos = (loff_t)op->store.first << PAGE_SHIFT; | |
1142 | pos += op->store.first_offset; | |
31143d5d | 1143 | |
e49c7b2f | 1144 | i_size = i_size_read(&vp->vnode->vfs_inode); |
31143d5d DH |
1145 | if (pos + size > i_size) |
1146 | i_size = size + pos; | |
1147 | ||
1148 | _debug("size %llx, at %llx, i_size %llx", | |
1149 | (unsigned long long) size, (unsigned long long) pos, | |
1150 | (unsigned long long) i_size); | |
1151 | ||
e49c7b2f DH |
1152 | if (upper_32_bits(pos) || upper_32_bits(i_size) || upper_32_bits(size) || |
1153 | upper_32_bits(pos + size)) | |
1154 | return afs_fs_store_data64(op, pos, size, i_size); | |
31143d5d | 1155 | |
e49c7b2f | 1156 | call = afs_alloc_flat_call(op->net, &afs_RXFSStoreData, |
31143d5d DH |
1157 | (4 + 6 + 3) * 4, |
1158 | (21 + 6) * 4); | |
1159 | if (!call) | |
e49c7b2f | 1160 | return afs_op_nomem(op); |
31143d5d | 1161 | |
31143d5d | 1162 | call->send_pages = true; |
31143d5d DH |
1163 | |
1164 | /* marshall the parameters */ | |
1165 | bp = call->request; | |
1166 | *bp++ = htonl(FSSTOREDATA); | |
e49c7b2f DH |
1167 | *bp++ = htonl(vp->fid.vid); |
1168 | *bp++ = htonl(vp->fid.vnode); | |
1169 | *bp++ = htonl(vp->fid.unique); | |
31143d5d | 1170 | |
ab94f5d0 | 1171 | *bp++ = htonl(AFS_SET_MTIME); /* mask */ |
e49c7b2f | 1172 | *bp++ = htonl(op->mtime.tv_sec); /* mtime */ |
31143d5d DH |
1173 | *bp++ = 0; /* owner */ |
1174 | *bp++ = 0; /* group */ | |
1175 | *bp++ = 0; /* unix mode */ | |
1176 | *bp++ = 0; /* segment size */ | |
1177 | ||
e49c7b2f DH |
1178 | *bp++ = htonl(lower_32_bits(pos)); |
1179 | *bp++ = htonl(lower_32_bits(size)); | |
1180 | *bp++ = htonl(lower_32_bits(i_size)); | |
31143d5d | 1181 | |
e49c7b2f DH |
1182 | trace_afs_make_fs_call(call, &vp->fid); |
1183 | afs_make_op_call(op, call, GFP_NOFS); | |
31143d5d DH |
1184 | } |
1185 | ||
1186 | /* | |
1187 | * FS.StoreStatus operation type | |
1188 | */ | |
1189 | static const struct afs_call_type afs_RXFSStoreStatus = { | |
1190 | .name = "FS.StoreStatus", | |
025db80c | 1191 | .op = afs_FS_StoreStatus, |
e49c7b2f | 1192 | .deliver = afs_deliver_fs_store_data, |
31143d5d DH |
1193 | .destructor = afs_flat_call_destructor, |
1194 | }; | |
1195 | ||
1196 | static const struct afs_call_type afs_RXFSStoreData_as_Status = { | |
1197 | .name = "FS.StoreData", | |
025db80c | 1198 | .op = afs_FS_StoreData, |
e49c7b2f | 1199 | .deliver = afs_deliver_fs_store_data, |
31143d5d DH |
1200 | .destructor = afs_flat_call_destructor, |
1201 | }; | |
1202 | ||
b9b1f8d5 DH |
1203 | static const struct afs_call_type afs_RXFSStoreData64_as_Status = { |
1204 | .name = "FS.StoreData64", | |
025db80c | 1205 | .op = afs_FS_StoreData64, |
e49c7b2f | 1206 | .deliver = afs_deliver_fs_store_data, |
b9b1f8d5 DH |
1207 | .destructor = afs_flat_call_destructor, |
1208 | }; | |
1209 | ||
1210 | /* | |
1211 | * set the attributes on a very large file, using FS.StoreData rather than | |
1212 | * FS.StoreStatus so as to alter the file size also | |
1213 | */ | |
e49c7b2f | 1214 | static void afs_fs_setattr_size64(struct afs_operation *op) |
b9b1f8d5 | 1215 | { |
e49c7b2f | 1216 | struct afs_vnode_param *vp = &op->file[0]; |
b9b1f8d5 | 1217 | struct afs_call *call; |
e49c7b2f | 1218 | struct iattr *attr = op->setattr.attr; |
b9b1f8d5 DH |
1219 | __be32 *bp; |
1220 | ||
3b6492df | 1221 | _enter(",%x,{%llx:%llu},,", |
e49c7b2f | 1222 | key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
b9b1f8d5 DH |
1223 | |
1224 | ASSERT(attr->ia_valid & ATTR_SIZE); | |
1225 | ||
e49c7b2f | 1226 | call = afs_alloc_flat_call(op->net, &afs_RXFSStoreData64_as_Status, |
b9b1f8d5 DH |
1227 | (4 + 6 + 3 * 2) * 4, |
1228 | (21 + 6) * 4); | |
1229 | if (!call) | |
e49c7b2f | 1230 | return afs_op_nomem(op); |
b9b1f8d5 DH |
1231 | |
1232 | /* marshall the parameters */ | |
1233 | bp = call->request; | |
1234 | *bp++ = htonl(FSSTOREDATA64); | |
e49c7b2f DH |
1235 | *bp++ = htonl(vp->fid.vid); |
1236 | *bp++ = htonl(vp->fid.vnode); | |
1237 | *bp++ = htonl(vp->fid.unique); | |
b9b1f8d5 DH |
1238 | |
1239 | xdr_encode_AFS_StoreStatus(&bp, attr); | |
1240 | ||
e49c7b2f DH |
1241 | *bp++ = htonl(upper_32_bits(attr->ia_size)); /* position of start of write */ |
1242 | *bp++ = htonl(lower_32_bits(attr->ia_size)); | |
1243 | *bp++ = 0; /* size of write */ | |
b9b1f8d5 | 1244 | *bp++ = 0; |
e49c7b2f DH |
1245 | *bp++ = htonl(upper_32_bits(attr->ia_size)); /* new file length */ |
1246 | *bp++ = htonl(lower_32_bits(attr->ia_size)); | |
1247 | ||
1248 | trace_afs_make_fs_call(call, &vp->fid); | |
1249 | afs_make_op_call(op, call, GFP_NOFS); | |
b9b1f8d5 DH |
1250 | } |
1251 | ||
31143d5d DH |
1252 | /* |
1253 | * set the attributes on a file, using FS.StoreData rather than FS.StoreStatus | |
1254 | * so as to alter the file size also | |
1255 | */ | |
e49c7b2f | 1256 | static void afs_fs_setattr_size(struct afs_operation *op) |
31143d5d | 1257 | { |
e49c7b2f | 1258 | struct afs_vnode_param *vp = &op->file[0]; |
31143d5d | 1259 | struct afs_call *call; |
e49c7b2f | 1260 | struct iattr *attr = op->setattr.attr; |
31143d5d DH |
1261 | __be32 *bp; |
1262 | ||
3b6492df | 1263 | _enter(",%x,{%llx:%llu},,", |
e49c7b2f | 1264 | key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
31143d5d DH |
1265 | |
1266 | ASSERT(attr->ia_valid & ATTR_SIZE); | |
e49c7b2f DH |
1267 | if (upper_32_bits(attr->ia_size)) |
1268 | return afs_fs_setattr_size64(op); | |
31143d5d | 1269 | |
e49c7b2f | 1270 | call = afs_alloc_flat_call(op->net, &afs_RXFSStoreData_as_Status, |
31143d5d DH |
1271 | (4 + 6 + 3) * 4, |
1272 | (21 + 6) * 4); | |
1273 | if (!call) | |
e49c7b2f | 1274 | return afs_op_nomem(op); |
31143d5d DH |
1275 | |
1276 | /* marshall the parameters */ | |
1277 | bp = call->request; | |
1278 | *bp++ = htonl(FSSTOREDATA); | |
e49c7b2f DH |
1279 | *bp++ = htonl(vp->fid.vid); |
1280 | *bp++ = htonl(vp->fid.vnode); | |
1281 | *bp++ = htonl(vp->fid.unique); | |
31143d5d DH |
1282 | |
1283 | xdr_encode_AFS_StoreStatus(&bp, attr); | |
1284 | ||
8c7ae38d | 1285 | *bp++ = htonl(attr->ia_size); /* position of start of write */ |
31143d5d DH |
1286 | *bp++ = 0; /* size of write */ |
1287 | *bp++ = htonl(attr->ia_size); /* new file length */ | |
1288 | ||
e49c7b2f DH |
1289 | trace_afs_make_fs_call(call, &vp->fid); |
1290 | afs_make_op_call(op, call, GFP_NOFS); | |
31143d5d DH |
1291 | } |
1292 | ||
1293 | /* | |
1294 | * set the attributes on a file, using FS.StoreData if there's a change in file | |
1295 | * size, and FS.StoreStatus otherwise | |
1296 | */ | |
e49c7b2f | 1297 | void afs_fs_setattr(struct afs_operation *op) |
31143d5d | 1298 | { |
e49c7b2f | 1299 | struct afs_vnode_param *vp = &op->file[0]; |
31143d5d | 1300 | struct afs_call *call; |
e49c7b2f | 1301 | struct iattr *attr = op->setattr.attr; |
31143d5d DH |
1302 | __be32 *bp; |
1303 | ||
1304 | if (attr->ia_valid & ATTR_SIZE) | |
e49c7b2f | 1305 | return afs_fs_setattr_size(op); |
31143d5d | 1306 | |
3b6492df | 1307 | _enter(",%x,{%llx:%llu},,", |
e49c7b2f | 1308 | key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
31143d5d | 1309 | |
e49c7b2f | 1310 | call = afs_alloc_flat_call(op->net, &afs_RXFSStoreStatus, |
31143d5d DH |
1311 | (4 + 6) * 4, |
1312 | (21 + 6) * 4); | |
1313 | if (!call) | |
e49c7b2f | 1314 | return afs_op_nomem(op); |
31143d5d DH |
1315 | |
1316 | /* marshall the parameters */ | |
1317 | bp = call->request; | |
1318 | *bp++ = htonl(FSSTORESTATUS); | |
e49c7b2f DH |
1319 | *bp++ = htonl(vp->fid.vid); |
1320 | *bp++ = htonl(vp->fid.vnode); | |
1321 | *bp++ = htonl(vp->fid.unique); | |
31143d5d | 1322 | |
e49c7b2f | 1323 | xdr_encode_AFS_StoreStatus(&bp, op->setattr.attr); |
31143d5d | 1324 | |
e49c7b2f DH |
1325 | trace_afs_make_fs_call(call, &vp->fid); |
1326 | afs_make_op_call(op, call, GFP_NOFS); | |
31143d5d | 1327 | } |
45222b9e DH |
1328 | |
1329 | /* | |
1330 | * deliver reply data to an FS.GetVolumeStatus | |
1331 | */ | |
d001648e | 1332 | static int afs_deliver_fs_get_volume_status(struct afs_call *call) |
45222b9e | 1333 | { |
e49c7b2f | 1334 | struct afs_operation *op = call->op; |
45222b9e DH |
1335 | const __be32 *bp; |
1336 | char *p; | |
12bdcf33 | 1337 | u32 size; |
45222b9e DH |
1338 | int ret; |
1339 | ||
d001648e | 1340 | _enter("{%u}", call->unmarshall); |
45222b9e DH |
1341 | |
1342 | switch (call->unmarshall) { | |
1343 | case 0: | |
45222b9e | 1344 | call->unmarshall++; |
12bdcf33 | 1345 | afs_extract_to_buf(call, 12 * 4); |
29881608 | 1346 | /* Fall through */ |
45222b9e | 1347 | |
29881608 | 1348 | /* extract the returned status record */ |
45222b9e DH |
1349 | case 1: |
1350 | _debug("extract status"); | |
12bdcf33 | 1351 | ret = afs_extract_data(call, true); |
372ee163 DH |
1352 | if (ret < 0) |
1353 | return ret; | |
45222b9e DH |
1354 | |
1355 | bp = call->buffer; | |
e49c7b2f | 1356 | xdr_decode_AFSFetchVolumeStatus(&bp, &op->volstatus.vs); |
45222b9e | 1357 | call->unmarshall++; |
12bdcf33 | 1358 | afs_extract_to_tmp(call); |
29881608 | 1359 | /* Fall through */ |
45222b9e | 1360 | |
29881608 | 1361 | /* extract the volume name length */ |
45222b9e | 1362 | case 2: |
12bdcf33 | 1363 | ret = afs_extract_data(call, true); |
372ee163 DH |
1364 | if (ret < 0) |
1365 | return ret; | |
45222b9e DH |
1366 | |
1367 | call->count = ntohl(call->tmp); | |
1368 | _debug("volname length: %u", call->count); | |
1369 | if (call->count >= AFSNAMEMAX) | |
7126ead9 | 1370 | return afs_protocol_error(call, afs_eproto_volname_len); |
12bdcf33 | 1371 | size = (call->count + 3) & ~3; /* It's padded */ |
ffba718e | 1372 | afs_extract_to_buf(call, size); |
45222b9e | 1373 | call->unmarshall++; |
29881608 | 1374 | /* Fall through */ |
45222b9e | 1375 | |
29881608 | 1376 | /* extract the volume name */ |
45222b9e DH |
1377 | case 3: |
1378 | _debug("extract volname"); | |
12bdcf33 DH |
1379 | ret = afs_extract_data(call, true); |
1380 | if (ret < 0) | |
1381 | return ret; | |
45222b9e | 1382 | |
ffba718e | 1383 | p = call->buffer; |
45222b9e DH |
1384 | p[call->count] = 0; |
1385 | _debug("volname '%s'", p); | |
12bdcf33 | 1386 | afs_extract_to_tmp(call); |
45222b9e | 1387 | call->unmarshall++; |
29881608 | 1388 | /* Fall through */ |
45222b9e | 1389 | |
29881608 | 1390 | /* extract the offline message length */ |
12bdcf33 DH |
1391 | case 4: |
1392 | ret = afs_extract_data(call, true); | |
372ee163 DH |
1393 | if (ret < 0) |
1394 | return ret; | |
45222b9e DH |
1395 | |
1396 | call->count = ntohl(call->tmp); | |
1397 | _debug("offline msg length: %u", call->count); | |
1398 | if (call->count >= AFSNAMEMAX) | |
7126ead9 | 1399 | return afs_protocol_error(call, afs_eproto_offline_msg_len); |
12bdcf33 | 1400 | size = (call->count + 3) & ~3; /* It's padded */ |
ffba718e | 1401 | afs_extract_to_buf(call, size); |
45222b9e | 1402 | call->unmarshall++; |
29881608 | 1403 | /* Fall through */ |
45222b9e | 1404 | |
29881608 | 1405 | /* extract the offline message */ |
12bdcf33 | 1406 | case 5: |
45222b9e | 1407 | _debug("extract offline"); |
12bdcf33 DH |
1408 | ret = afs_extract_data(call, true); |
1409 | if (ret < 0) | |
1410 | return ret; | |
45222b9e | 1411 | |
ffba718e | 1412 | p = call->buffer; |
45222b9e DH |
1413 | p[call->count] = 0; |
1414 | _debug("offline '%s'", p); | |
1415 | ||
12bdcf33 | 1416 | afs_extract_to_tmp(call); |
45222b9e | 1417 | call->unmarshall++; |
29881608 | 1418 | /* Fall through */ |
45222b9e | 1419 | |
29881608 | 1420 | /* extract the message of the day length */ |
12bdcf33 DH |
1421 | case 6: |
1422 | ret = afs_extract_data(call, true); | |
372ee163 DH |
1423 | if (ret < 0) |
1424 | return ret; | |
45222b9e DH |
1425 | |
1426 | call->count = ntohl(call->tmp); | |
1427 | _debug("motd length: %u", call->count); | |
1428 | if (call->count >= AFSNAMEMAX) | |
7126ead9 | 1429 | return afs_protocol_error(call, afs_eproto_motd_len); |
12bdcf33 | 1430 | size = (call->count + 3) & ~3; /* It's padded */ |
ffba718e | 1431 | afs_extract_to_buf(call, size); |
45222b9e | 1432 | call->unmarshall++; |
29881608 | 1433 | /* Fall through */ |
45222b9e | 1434 | |
29881608 | 1435 | /* extract the message of the day */ |
12bdcf33 | 1436 | case 7: |
45222b9e | 1437 | _debug("extract motd"); |
12bdcf33 DH |
1438 | ret = afs_extract_data(call, false); |
1439 | if (ret < 0) | |
1440 | return ret; | |
45222b9e | 1441 | |
ffba718e | 1442 | p = call->buffer; |
45222b9e DH |
1443 | p[call->count] = 0; |
1444 | _debug("motd '%s'", p); | |
1445 | ||
45222b9e DH |
1446 | call->unmarshall++; |
1447 | ||
12bdcf33 | 1448 | case 8: |
45222b9e DH |
1449 | break; |
1450 | } | |
1451 | ||
45222b9e DH |
1452 | _leave(" = 0 [done]"); |
1453 | return 0; | |
1454 | } | |
1455 | ||
45222b9e DH |
1456 | /* |
1457 | * FS.GetVolumeStatus operation type | |
1458 | */ | |
1459 | static const struct afs_call_type afs_RXFSGetVolumeStatus = { | |
1460 | .name = "FS.GetVolumeStatus", | |
025db80c | 1461 | .op = afs_FS_GetVolumeStatus, |
45222b9e | 1462 | .deliver = afs_deliver_fs_get_volume_status, |
ffba718e | 1463 | .destructor = afs_flat_call_destructor, |
45222b9e DH |
1464 | }; |
1465 | ||
1466 | /* | |
1467 | * fetch the status of a volume | |
1468 | */ | |
e49c7b2f | 1469 | void afs_fs_get_volume_status(struct afs_operation *op) |
45222b9e | 1470 | { |
e49c7b2f | 1471 | struct afs_vnode_param *vp = &op->file[0]; |
45222b9e DH |
1472 | struct afs_call *call; |
1473 | __be32 *bp; | |
45222b9e DH |
1474 | |
1475 | _enter(""); | |
1476 | ||
e49c7b2f | 1477 | call = afs_alloc_flat_call(op->net, &afs_RXFSGetVolumeStatus, 2 * 4, |
ffba718e DH |
1478 | max(12 * 4, AFSOPAQUEMAX + 1)); |
1479 | if (!call) | |
e49c7b2f | 1480 | return afs_op_nomem(op); |
45222b9e DH |
1481 | |
1482 | /* marshall the parameters */ | |
1483 | bp = call->request; | |
1484 | bp[0] = htonl(FSGETVOLUMESTATUS); | |
e49c7b2f | 1485 | bp[1] = htonl(vp->fid.vid); |
45222b9e | 1486 | |
e49c7b2f DH |
1487 | trace_afs_make_fs_call(call, &vp->fid); |
1488 | afs_make_op_call(op, call, GFP_NOFS); | |
45222b9e | 1489 | } |
e8d6c554 DH |
1490 | |
1491 | /* | |
1492 | * deliver reply data to an FS.SetLock, FS.ExtendLock or FS.ReleaseLock | |
1493 | */ | |
d001648e | 1494 | static int afs_deliver_fs_xxxx_lock(struct afs_call *call) |
e8d6c554 | 1495 | { |
e49c7b2f | 1496 | struct afs_operation *op = call->op; |
e8d6c554 | 1497 | const __be32 *bp; |
372ee163 | 1498 | int ret; |
e8d6c554 | 1499 | |
d001648e | 1500 | _enter("{%u}", call->unmarshall); |
e8d6c554 | 1501 | |
d001648e | 1502 | ret = afs_transfer_reply(call); |
372ee163 DH |
1503 | if (ret < 0) |
1504 | return ret; | |
e8d6c554 DH |
1505 | |
1506 | /* unmarshall the reply once we've received all of it */ | |
1507 | bp = call->buffer; | |
e49c7b2f | 1508 | xdr_decode_AFSVolSync(&bp, &op->volsync); |
e8d6c554 DH |
1509 | |
1510 | _leave(" = 0 [done]"); | |
1511 | return 0; | |
1512 | } | |
1513 | ||
1514 | /* | |
1515 | * FS.SetLock operation type | |
1516 | */ | |
1517 | static const struct afs_call_type afs_RXFSSetLock = { | |
1518 | .name = "FS.SetLock", | |
025db80c | 1519 | .op = afs_FS_SetLock, |
e8d6c554 | 1520 | .deliver = afs_deliver_fs_xxxx_lock, |
a690f60a | 1521 | .done = afs_lock_op_done, |
e8d6c554 DH |
1522 | .destructor = afs_flat_call_destructor, |
1523 | }; | |
1524 | ||
1525 | /* | |
1526 | * FS.ExtendLock operation type | |
1527 | */ | |
1528 | static const struct afs_call_type afs_RXFSExtendLock = { | |
1529 | .name = "FS.ExtendLock", | |
025db80c | 1530 | .op = afs_FS_ExtendLock, |
e8d6c554 | 1531 | .deliver = afs_deliver_fs_xxxx_lock, |
a690f60a | 1532 | .done = afs_lock_op_done, |
e8d6c554 DH |
1533 | .destructor = afs_flat_call_destructor, |
1534 | }; | |
1535 | ||
1536 | /* | |
1537 | * FS.ReleaseLock operation type | |
1538 | */ | |
1539 | static const struct afs_call_type afs_RXFSReleaseLock = { | |
1540 | .name = "FS.ReleaseLock", | |
025db80c | 1541 | .op = afs_FS_ReleaseLock, |
e8d6c554 | 1542 | .deliver = afs_deliver_fs_xxxx_lock, |
e8d6c554 DH |
1543 | .destructor = afs_flat_call_destructor, |
1544 | }; | |
1545 | ||
1546 | /* | |
d2ddc776 | 1547 | * Set a lock on a file |
e8d6c554 | 1548 | */ |
e49c7b2f | 1549 | void afs_fs_set_lock(struct afs_operation *op) |
e8d6c554 | 1550 | { |
e49c7b2f | 1551 | struct afs_vnode_param *vp = &op->file[0]; |
e8d6c554 DH |
1552 | struct afs_call *call; |
1553 | __be32 *bp; | |
1554 | ||
1555 | _enter(""); | |
1556 | ||
e49c7b2f | 1557 | call = afs_alloc_flat_call(op->net, &afs_RXFSSetLock, 5 * 4, 6 * 4); |
e8d6c554 | 1558 | if (!call) |
e49c7b2f | 1559 | return afs_op_nomem(op); |
e8d6c554 DH |
1560 | |
1561 | /* marshall the parameters */ | |
1562 | bp = call->request; | |
1563 | *bp++ = htonl(FSSETLOCK); | |
e49c7b2f DH |
1564 | *bp++ = htonl(vp->fid.vid); |
1565 | *bp++ = htonl(vp->fid.vnode); | |
1566 | *bp++ = htonl(vp->fid.unique); | |
1567 | *bp++ = htonl(op->lock.type); | |
1568 | ||
1569 | trace_afs_make_fs_calli(call, &vp->fid, op->lock.type); | |
1570 | afs_make_op_call(op, call, GFP_NOFS); | |
e8d6c554 DH |
1571 | } |
1572 | ||
1573 | /* | |
1574 | * extend a lock on a file | |
1575 | */ | |
e49c7b2f | 1576 | void afs_fs_extend_lock(struct afs_operation *op) |
e8d6c554 | 1577 | { |
e49c7b2f | 1578 | struct afs_vnode_param *vp = &op->file[0]; |
e8d6c554 DH |
1579 | struct afs_call *call; |
1580 | __be32 *bp; | |
1581 | ||
1582 | _enter(""); | |
1583 | ||
e49c7b2f | 1584 | call = afs_alloc_flat_call(op->net, &afs_RXFSExtendLock, 4 * 4, 6 * 4); |
e8d6c554 | 1585 | if (!call) |
e49c7b2f | 1586 | return afs_op_nomem(op); |
e8d6c554 DH |
1587 | |
1588 | /* marshall the parameters */ | |
1589 | bp = call->request; | |
1590 | *bp++ = htonl(FSEXTENDLOCK); | |
e49c7b2f DH |
1591 | *bp++ = htonl(vp->fid.vid); |
1592 | *bp++ = htonl(vp->fid.vnode); | |
1593 | *bp++ = htonl(vp->fid.unique); | |
1594 | ||
1595 | trace_afs_make_fs_call(call, &vp->fid); | |
1596 | afs_make_op_call(op, call, GFP_NOFS); | |
e8d6c554 DH |
1597 | } |
1598 | ||
1599 | /* | |
1600 | * release a lock on a file | |
1601 | */ | |
e49c7b2f | 1602 | void afs_fs_release_lock(struct afs_operation *op) |
e8d6c554 | 1603 | { |
e49c7b2f | 1604 | struct afs_vnode_param *vp = &op->file[0]; |
e8d6c554 DH |
1605 | struct afs_call *call; |
1606 | __be32 *bp; | |
1607 | ||
1608 | _enter(""); | |
1609 | ||
e49c7b2f | 1610 | call = afs_alloc_flat_call(op->net, &afs_RXFSReleaseLock, 4 * 4, 6 * 4); |
e8d6c554 | 1611 | if (!call) |
e49c7b2f | 1612 | return afs_op_nomem(op); |
e8d6c554 DH |
1613 | |
1614 | /* marshall the parameters */ | |
1615 | bp = call->request; | |
1616 | *bp++ = htonl(FSRELEASELOCK); | |
e49c7b2f DH |
1617 | *bp++ = htonl(vp->fid.vid); |
1618 | *bp++ = htonl(vp->fid.vnode); | |
1619 | *bp++ = htonl(vp->fid.unique); | |
1620 | ||
1621 | trace_afs_make_fs_call(call, &vp->fid); | |
1622 | afs_make_op_call(op, call, GFP_NOFS); | |
c435ee34 DH |
1623 | } |
1624 | ||
1625 | /* | |
1626 | * Deliver reply data to an FS.GiveUpAllCallBacks operation. | |
1627 | */ | |
1628 | static int afs_deliver_fs_give_up_all_callbacks(struct afs_call *call) | |
1629 | { | |
1630 | return afs_transfer_reply(call); | |
1631 | } | |
1632 | ||
1633 | /* | |
1634 | * FS.GiveUpAllCallBacks operation type | |
1635 | */ | |
1636 | static const struct afs_call_type afs_RXFSGiveUpAllCallBacks = { | |
1637 | .name = "FS.GiveUpAllCallBacks", | |
025db80c | 1638 | .op = afs_FS_GiveUpAllCallBacks, |
c435ee34 DH |
1639 | .deliver = afs_deliver_fs_give_up_all_callbacks, |
1640 | .destructor = afs_flat_call_destructor, | |
1641 | }; | |
1642 | ||
1643 | /* | |
1644 | * Flush all the callbacks we have on a server. | |
1645 | */ | |
d2ddc776 DH |
1646 | int afs_fs_give_up_all_callbacks(struct afs_net *net, |
1647 | struct afs_server *server, | |
8b2a464c | 1648 | struct afs_addr_cursor *ac, |
d2ddc776 | 1649 | struct key *key) |
c435ee34 DH |
1650 | { |
1651 | struct afs_call *call; | |
1652 | __be32 *bp; | |
1653 | ||
1654 | _enter(""); | |
1655 | ||
d2ddc776 | 1656 | call = afs_alloc_flat_call(net, &afs_RXFSGiveUpAllCallBacks, 1 * 4, 0); |
c435ee34 DH |
1657 | if (!call) |
1658 | return -ENOMEM; | |
1659 | ||
1660 | call->key = key; | |
1661 | ||
1662 | /* marshall the parameters */ | |
1663 | bp = call->request; | |
1664 | *bp++ = htonl(FSGIVEUPALLCALLBACKS); | |
1665 | ||
977e5f8e | 1666 | call->server = afs_use_server(server, afs_server_trace_give_up_cb); |
0b9bf381 DH |
1667 | afs_make_call(ac, call, GFP_NOFS); |
1668 | return afs_wait_for_call_to_complete(call, ac); | |
d2ddc776 DH |
1669 | } |
1670 | ||
1671 | /* | |
1672 | * Deliver reply data to an FS.GetCapabilities operation. | |
1673 | */ | |
1674 | static int afs_deliver_fs_get_capabilities(struct afs_call *call) | |
1675 | { | |
1676 | u32 count; | |
1677 | int ret; | |
1678 | ||
fc276122 | 1679 | _enter("{%u,%zu}", call->unmarshall, iov_iter_count(call->iter)); |
d2ddc776 | 1680 | |
d2ddc776 DH |
1681 | switch (call->unmarshall) { |
1682 | case 0: | |
12bdcf33 | 1683 | afs_extract_to_tmp(call); |
d2ddc776 | 1684 | call->unmarshall++; |
29881608 | 1685 | /* Fall through */ |
d2ddc776 | 1686 | |
29881608 | 1687 | /* Extract the capabilities word count */ |
d2ddc776 | 1688 | case 1: |
12bdcf33 | 1689 | ret = afs_extract_data(call, true); |
d2ddc776 DH |
1690 | if (ret < 0) |
1691 | return ret; | |
1692 | ||
1693 | count = ntohl(call->tmp); | |
1694 | ||
1695 | call->count = count; | |
1696 | call->count2 = count; | |
23a28913 | 1697 | afs_extract_discard(call, count * sizeof(__be32)); |
d2ddc776 | 1698 | call->unmarshall++; |
29881608 | 1699 | /* Fall through */ |
d2ddc776 | 1700 | |
29881608 | 1701 | /* Extract capabilities words */ |
d2ddc776 | 1702 | case 2: |
12bdcf33 | 1703 | ret = afs_extract_data(call, false); |
d2ddc776 DH |
1704 | if (ret < 0) |
1705 | return ret; | |
1706 | ||
1707 | /* TODO: Examine capabilities */ | |
1708 | ||
d2ddc776 DH |
1709 | call->unmarshall++; |
1710 | break; | |
1711 | } | |
1712 | ||
1713 | _leave(" = 0 [done]"); | |
1714 | return 0; | |
1715 | } | |
1716 | ||
1717 | /* | |
1718 | * FS.GetCapabilities operation type | |
1719 | */ | |
1720 | static const struct afs_call_type afs_RXFSGetCapabilities = { | |
1721 | .name = "FS.GetCapabilities", | |
025db80c | 1722 | .op = afs_FS_GetCapabilities, |
d2ddc776 | 1723 | .deliver = afs_deliver_fs_get_capabilities, |
3bf0fb6f | 1724 | .done = afs_fileserver_probe_result, |
ffba718e | 1725 | .destructor = afs_flat_call_destructor, |
d2ddc776 DH |
1726 | }; |
1727 | ||
1728 | /* | |
f6cbb368 DH |
1729 | * Probe a fileserver for the capabilities that it supports. This RPC can |
1730 | * reply with up to 196 words. The operation is asynchronous and if we managed | |
1731 | * to allocate a call, true is returned the result is delivered through the | |
1732 | * ->done() - otherwise we return false to indicate we didn't even try. | |
d2ddc776 | 1733 | */ |
f6cbb368 DH |
1734 | bool afs_fs_get_capabilities(struct afs_net *net, struct afs_server *server, |
1735 | struct afs_addr_cursor *ac, struct key *key) | |
d2ddc776 DH |
1736 | { |
1737 | struct afs_call *call; | |
1738 | __be32 *bp; | |
1739 | ||
1740 | _enter(""); | |
1741 | ||
1742 | call = afs_alloc_flat_call(net, &afs_RXFSGetCapabilities, 1 * 4, 16 * 4); | |
1743 | if (!call) | |
f6cbb368 | 1744 | return false; |
d2ddc776 DH |
1745 | |
1746 | call->key = key; | |
977e5f8e | 1747 | call->server = afs_use_server(server, afs_server_trace_get_caps); |
30062bd1 | 1748 | call->upgrade = true; |
0b9bf381 | 1749 | call->async = true; |
94f699c9 | 1750 | call->max_lifespan = AFS_PROBE_MAX_LIFESPAN; |
d2ddc776 DH |
1751 | |
1752 | /* marshall the parameters */ | |
1753 | bp = call->request; | |
1754 | *bp++ = htonl(FSGETCAPABILITIES); | |
1755 | ||
025db80c | 1756 | trace_afs_make_fs_call(call, NULL); |
0b9bf381 | 1757 | afs_make_call(ac, call, GFP_NOFS); |
f6cbb368 DH |
1758 | afs_put_call(call); |
1759 | return true; | |
e8d6c554 | 1760 | } |
5cf9dd55 | 1761 | |
5cf9dd55 DH |
1762 | /* |
1763 | * Deliver reply data to an FS.InlineBulkStatus call | |
1764 | */ | |
1765 | static int afs_deliver_fs_inline_bulk_status(struct afs_call *call) | |
1766 | { | |
e49c7b2f | 1767 | struct afs_operation *op = call->op; |
87182759 | 1768 | struct afs_status_cb *scb; |
5cf9dd55 DH |
1769 | const __be32 *bp; |
1770 | u32 tmp; | |
1771 | int ret; | |
1772 | ||
1773 | _enter("{%u}", call->unmarshall); | |
1774 | ||
1775 | switch (call->unmarshall) { | |
1776 | case 0: | |
12bdcf33 | 1777 | afs_extract_to_tmp(call); |
5cf9dd55 | 1778 | call->unmarshall++; |
29881608 | 1779 | /* Fall through */ |
5cf9dd55 DH |
1780 | |
1781 | /* Extract the file status count and array in two steps */ | |
1782 | case 1: | |
1783 | _debug("extract status count"); | |
12bdcf33 | 1784 | ret = afs_extract_data(call, true); |
5cf9dd55 DH |
1785 | if (ret < 0) |
1786 | return ret; | |
1787 | ||
1788 | tmp = ntohl(call->tmp); | |
e49c7b2f DH |
1789 | _debug("status count: %u/%u", tmp, op->nr_files); |
1790 | if (tmp != op->nr_files) | |
7126ead9 | 1791 | return afs_protocol_error(call, afs_eproto_ibulkst_count); |
5cf9dd55 DH |
1792 | |
1793 | call->count = 0; | |
1794 | call->unmarshall++; | |
1795 | more_counts: | |
12bdcf33 | 1796 | afs_extract_to_buf(call, 21 * sizeof(__be32)); |
e690c9e3 | 1797 | /* Fall through */ |
29881608 | 1798 | |
5cf9dd55 DH |
1799 | case 2: |
1800 | _debug("extract status array %u", call->count); | |
12bdcf33 | 1801 | ret = afs_extract_data(call, true); |
5cf9dd55 DH |
1802 | if (ret < 0) |
1803 | return ret; | |
1804 | ||
e49c7b2f DH |
1805 | switch (call->count) { |
1806 | case 0: | |
1807 | scb = &op->file[0].scb; | |
1808 | break; | |
1809 | case 1: | |
1810 | scb = &op->file[1].scb; | |
1811 | break; | |
1812 | default: | |
1813 | scb = &op->more_files[call->count - 2].scb; | |
1814 | break; | |
1815 | } | |
1816 | ||
5cf9dd55 | 1817 | bp = call->buffer; |
38355eec | 1818 | xdr_decode_AFSFetchStatus(&bp, call, scb); |
e49c7b2f | 1819 | |
5cf9dd55 | 1820 | call->count++; |
e49c7b2f | 1821 | if (call->count < op->nr_files) |
5cf9dd55 DH |
1822 | goto more_counts; |
1823 | ||
1824 | call->count = 0; | |
1825 | call->unmarshall++; | |
12bdcf33 | 1826 | afs_extract_to_tmp(call); |
29881608 | 1827 | /* Fall through */ |
5cf9dd55 DH |
1828 | |
1829 | /* Extract the callback count and array in two steps */ | |
1830 | case 3: | |
1831 | _debug("extract CB count"); | |
12bdcf33 | 1832 | ret = afs_extract_data(call, true); |
5cf9dd55 DH |
1833 | if (ret < 0) |
1834 | return ret; | |
1835 | ||
1836 | tmp = ntohl(call->tmp); | |
1837 | _debug("CB count: %u", tmp); | |
e49c7b2f | 1838 | if (tmp != op->nr_files) |
7126ead9 | 1839 | return afs_protocol_error(call, afs_eproto_ibulkst_cb_count); |
5cf9dd55 DH |
1840 | call->count = 0; |
1841 | call->unmarshall++; | |
1842 | more_cbs: | |
12bdcf33 | 1843 | afs_extract_to_buf(call, 3 * sizeof(__be32)); |
e690c9e3 | 1844 | /* Fall through */ |
29881608 | 1845 | |
5cf9dd55 DH |
1846 | case 4: |
1847 | _debug("extract CB array"); | |
12bdcf33 | 1848 | ret = afs_extract_data(call, true); |
5cf9dd55 DH |
1849 | if (ret < 0) |
1850 | return ret; | |
1851 | ||
1852 | _debug("unmarshall CB array"); | |
e49c7b2f DH |
1853 | switch (call->count) { |
1854 | case 0: | |
1855 | scb = &op->file[0].scb; | |
1856 | break; | |
1857 | case 1: | |
1858 | scb = &op->file[1].scb; | |
1859 | break; | |
1860 | default: | |
1861 | scb = &op->more_files[call->count - 2].scb; | |
1862 | break; | |
1863 | } | |
1864 | ||
5cf9dd55 | 1865 | bp = call->buffer; |
a58823ac | 1866 | xdr_decode_AFSCallBack(&bp, call, scb); |
5cf9dd55 | 1867 | call->count++; |
e49c7b2f | 1868 | if (call->count < op->nr_files) |
5cf9dd55 DH |
1869 | goto more_cbs; |
1870 | ||
12bdcf33 | 1871 | afs_extract_to_buf(call, 6 * sizeof(__be32)); |
5cf9dd55 | 1872 | call->unmarshall++; |
e690c9e3 | 1873 | /* Fall through */ |
29881608 | 1874 | |
5cf9dd55 | 1875 | case 5: |
12bdcf33 | 1876 | ret = afs_extract_data(call, false); |
5cf9dd55 DH |
1877 | if (ret < 0) |
1878 | return ret; | |
1879 | ||
1880 | bp = call->buffer; | |
e49c7b2f | 1881 | xdr_decode_AFSVolSync(&bp, &op->volsync); |
5cf9dd55 | 1882 | |
5cf9dd55 DH |
1883 | call->unmarshall++; |
1884 | ||
1885 | case 6: | |
1886 | break; | |
1887 | } | |
1888 | ||
1889 | _leave(" = 0 [done]"); | |
1890 | return 0; | |
1891 | } | |
1892 | ||
e49c7b2f DH |
1893 | static void afs_done_fs_inline_bulk_status(struct afs_call *call) |
1894 | { | |
1895 | if (call->error == -ECONNABORTED && | |
20325960 | 1896 | call->abort_code == RX_INVALID_OPERATION) { |
e49c7b2f | 1897 | set_bit(AFS_SERVER_FL_NO_IBULK, &call->server->flags); |
20325960 DH |
1898 | if (call->op) |
1899 | set_bit(AFS_VOLUME_MAYBE_NO_IBULK, &call->op->volume->flags); | |
1900 | } | |
e49c7b2f DH |
1901 | } |
1902 | ||
5cf9dd55 DH |
1903 | /* |
1904 | * FS.InlineBulkStatus operation type | |
1905 | */ | |
1906 | static const struct afs_call_type afs_RXFSInlineBulkStatus = { | |
1907 | .name = "FS.InlineBulkStatus", | |
1908 | .op = afs_FS_InlineBulkStatus, | |
1909 | .deliver = afs_deliver_fs_inline_bulk_status, | |
e49c7b2f | 1910 | .done = afs_done_fs_inline_bulk_status, |
5cf9dd55 DH |
1911 | .destructor = afs_flat_call_destructor, |
1912 | }; | |
1913 | ||
1914 | /* | |
1915 | * Fetch the status information for up to 50 files | |
1916 | */ | |
e49c7b2f | 1917 | void afs_fs_inline_bulk_status(struct afs_operation *op) |
5cf9dd55 | 1918 | { |
e49c7b2f DH |
1919 | struct afs_vnode_param *dvp = &op->file[0]; |
1920 | struct afs_vnode_param *vp = &op->file[1]; | |
5cf9dd55 DH |
1921 | struct afs_call *call; |
1922 | __be32 *bp; | |
1923 | int i; | |
1924 | ||
20325960 | 1925 | if (test_bit(AFS_SERVER_FL_NO_IBULK, &op->server->flags)) { |
e49c7b2f DH |
1926 | op->error = -ENOTSUPP; |
1927 | return; | |
1928 | } | |
30062bd1 | 1929 | |
3b6492df | 1930 | _enter(",%x,{%llx:%llu},%u", |
e49c7b2f | 1931 | key_serial(op->key), vp->fid.vid, vp->fid.vnode, op->nr_files); |
5cf9dd55 | 1932 | |
e49c7b2f DH |
1933 | call = afs_alloc_flat_call(op->net, &afs_RXFSInlineBulkStatus, |
1934 | (2 + op->nr_files * 3) * 4, | |
5cf9dd55 | 1935 | 21 * 4); |
e49c7b2f DH |
1936 | if (!call) |
1937 | return afs_op_nomem(op); | |
5cf9dd55 DH |
1938 | |
1939 | /* marshall the parameters */ | |
1940 | bp = call->request; | |
1941 | *bp++ = htonl(FSINLINEBULKSTATUS); | |
e49c7b2f DH |
1942 | *bp++ = htonl(op->nr_files); |
1943 | *bp++ = htonl(dvp->fid.vid); | |
1944 | *bp++ = htonl(dvp->fid.vnode); | |
1945 | *bp++ = htonl(dvp->fid.unique); | |
1946 | *bp++ = htonl(vp->fid.vid); | |
1947 | *bp++ = htonl(vp->fid.vnode); | |
1948 | *bp++ = htonl(vp->fid.unique); | |
1949 | for (i = 0; i < op->nr_files - 2; i++) { | |
1950 | *bp++ = htonl(op->more_files[i].fid.vid); | |
1951 | *bp++ = htonl(op->more_files[i].fid.vnode); | |
1952 | *bp++ = htonl(op->more_files[i].fid.unique); | |
5cf9dd55 DH |
1953 | } |
1954 | ||
e49c7b2f DH |
1955 | trace_afs_make_fs_call(call, &vp->fid); |
1956 | afs_make_op_call(op, call, GFP_NOFS); | |
5cf9dd55 | 1957 | } |
260f082b DH |
1958 | |
1959 | /* | |
1960 | * deliver reply data to an FS.FetchACL | |
1961 | */ | |
1962 | static int afs_deliver_fs_fetch_acl(struct afs_call *call) | |
1963 | { | |
e49c7b2f DH |
1964 | struct afs_operation *op = call->op; |
1965 | struct afs_vnode_param *vp = &op->file[0]; | |
260f082b DH |
1966 | struct afs_acl *acl; |
1967 | const __be32 *bp; | |
1968 | unsigned int size; | |
1969 | int ret; | |
1970 | ||
1971 | _enter("{%u}", call->unmarshall); | |
1972 | ||
1973 | switch (call->unmarshall) { | |
1974 | case 0: | |
1975 | afs_extract_to_tmp(call); | |
1976 | call->unmarshall++; | |
29881608 | 1977 | /* Fall through */ |
260f082b DH |
1978 | |
1979 | /* extract the returned data length */ | |
1980 | case 1: | |
1981 | ret = afs_extract_data(call, true); | |
1982 | if (ret < 0) | |
1983 | return ret; | |
1984 | ||
1985 | size = call->count2 = ntohl(call->tmp); | |
1986 | size = round_up(size, 4); | |
1987 | ||
1988 | acl = kmalloc(struct_size(acl, data, size), GFP_KERNEL); | |
1989 | if (!acl) | |
1990 | return -ENOMEM; | |
e49c7b2f | 1991 | op->acl = acl; |
260f082b DH |
1992 | acl->size = call->count2; |
1993 | afs_extract_begin(call, acl->data, size); | |
1994 | call->unmarshall++; | |
29881608 | 1995 | /* Fall through */ |
260f082b DH |
1996 | |
1997 | /* extract the returned data */ | |
1998 | case 2: | |
1999 | ret = afs_extract_data(call, true); | |
2000 | if (ret < 0) | |
2001 | return ret; | |
2002 | ||
2003 | afs_extract_to_buf(call, (21 + 6) * 4); | |
2004 | call->unmarshall++; | |
29881608 | 2005 | /* Fall through */ |
260f082b DH |
2006 | |
2007 | /* extract the metadata */ | |
2008 | case 3: | |
2009 | ret = afs_extract_data(call, false); | |
2010 | if (ret < 0) | |
2011 | return ret; | |
2012 | ||
2013 | bp = call->buffer; | |
e49c7b2f DH |
2014 | xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); |
2015 | xdr_decode_AFSVolSync(&bp, &op->volsync); | |
260f082b DH |
2016 | |
2017 | call->unmarshall++; | |
2018 | ||
2019 | case 4: | |
2020 | break; | |
2021 | } | |
2022 | ||
2023 | _leave(" = 0 [done]"); | |
2024 | return 0; | |
2025 | } | |
2026 | ||
260f082b DH |
2027 | /* |
2028 | * FS.FetchACL operation type | |
2029 | */ | |
2030 | static const struct afs_call_type afs_RXFSFetchACL = { | |
2031 | .name = "FS.FetchACL", | |
2032 | .op = afs_FS_FetchACL, | |
2033 | .deliver = afs_deliver_fs_fetch_acl, | |
260f082b DH |
2034 | }; |
2035 | ||
2036 | /* | |
2037 | * Fetch the ACL for a file. | |
2038 | */ | |
e49c7b2f | 2039 | void afs_fs_fetch_acl(struct afs_operation *op) |
260f082b | 2040 | { |
e49c7b2f | 2041 | struct afs_vnode_param *vp = &op->file[0]; |
260f082b | 2042 | struct afs_call *call; |
260f082b DH |
2043 | __be32 *bp; |
2044 | ||
2045 | _enter(",%x,{%llx:%llu},,", | |
e49c7b2f | 2046 | key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
260f082b | 2047 | |
e49c7b2f DH |
2048 | call = afs_alloc_flat_call(op->net, &afs_RXFSFetchACL, 16, (21 + 6) * 4); |
2049 | if (!call) | |
2050 | return afs_op_nomem(op); | |
260f082b DH |
2051 | |
2052 | /* marshall the parameters */ | |
2053 | bp = call->request; | |
2054 | bp[0] = htonl(FSFETCHACL); | |
e49c7b2f DH |
2055 | bp[1] = htonl(vp->fid.vid); |
2056 | bp[2] = htonl(vp->fid.vnode); | |
2057 | bp[3] = htonl(vp->fid.unique); | |
b10494af | 2058 | |
e49c7b2f DH |
2059 | trace_afs_make_fs_call(call, &vp->fid); |
2060 | afs_make_op_call(op, call, GFP_KERNEL); | |
ffba718e DH |
2061 | } |
2062 | ||
b10494af JG |
2063 | /* |
2064 | * FS.StoreACL operation type | |
2065 | */ | |
2066 | static const struct afs_call_type afs_RXFSStoreACL = { | |
2067 | .name = "FS.StoreACL", | |
2068 | .op = afs_FS_StoreACL, | |
ffba718e | 2069 | .deliver = afs_deliver_fs_file_status_and_vol, |
b10494af JG |
2070 | .destructor = afs_flat_call_destructor, |
2071 | }; | |
2072 | ||
2073 | /* | |
2074 | * Fetch the ACL for a file. | |
2075 | */ | |
e49c7b2f | 2076 | void afs_fs_store_acl(struct afs_operation *op) |
b10494af | 2077 | { |
e49c7b2f | 2078 | struct afs_vnode_param *vp = &op->file[0]; |
b10494af | 2079 | struct afs_call *call; |
e49c7b2f | 2080 | const struct afs_acl *acl = op->acl; |
b10494af JG |
2081 | size_t size; |
2082 | __be32 *bp; | |
2083 | ||
2084 | _enter(",%x,{%llx:%llu},,", | |
e49c7b2f | 2085 | key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
b10494af JG |
2086 | |
2087 | size = round_up(acl->size, 4); | |
e49c7b2f | 2088 | call = afs_alloc_flat_call(op->net, &afs_RXFSStoreACL, |
b10494af | 2089 | 5 * 4 + size, (21 + 6) * 4); |
e49c7b2f DH |
2090 | if (!call) |
2091 | return afs_op_nomem(op); | |
b10494af JG |
2092 | |
2093 | /* marshall the parameters */ | |
2094 | bp = call->request; | |
2095 | bp[0] = htonl(FSSTOREACL); | |
e49c7b2f DH |
2096 | bp[1] = htonl(vp->fid.vid); |
2097 | bp[2] = htonl(vp->fid.vnode); | |
2098 | bp[3] = htonl(vp->fid.unique); | |
b10494af JG |
2099 | bp[4] = htonl(acl->size); |
2100 | memcpy(&bp[5], acl->data, acl->size); | |
2101 | if (acl->size != size) | |
2102 | memset((void *)&bp[5] + acl->size, 0, size - acl->size); | |
2103 | ||
e49c7b2f DH |
2104 | trace_afs_make_fs_call(call, &vp->fid); |
2105 | afs_make_op_call(op, call, GFP_KERNEL); | |
5cf9dd55 | 2106 | } |