4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
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13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
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21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
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30 * Copyright (c) 2011, 2014, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
37 #define DEBUG_SUBSYSTEM S_MDC
38 #include <lustre_net.h>
39 #include <lustre/lustre_idl.h>
40 #include <obd_class.h>
42 #include <cl_object.h>
43 #include "mdc_internal.h"
46 static void __mdc_pack_body(struct mdt_body *b, __u32 suppgid)
50 b->mbo_suppgid = suppgid;
51 b->mbo_uid = from_kuid(&init_user_ns, current_uid());
52 b->mbo_gid = from_kgid(&init_user_ns, current_gid());
53 b->mbo_fsuid = from_kuid(&init_user_ns, current_fsuid());
54 b->mbo_fsgid = from_kgid(&init_user_ns, current_fsgid());
55 b->mbo_capability = cfs_curproc_cap_pack();
58 void mdc_pack_capa(struct ptlrpc_request *req, const struct req_msg_field *field,
61 struct req_capsule *pill = &req->rq_pill;
62 struct lustre_capa *c;
65 LASSERT(req_capsule_get_size(pill, field, RCL_CLIENT) == 0);
69 c = req_capsule_client_get(pill, field);
72 DEBUG_CAPA(D_SEC, c, "pack");
75 void mdc_swap_layouts_pack(struct ptlrpc_request *req,
76 struct md_op_data *op_data)
78 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
81 __mdc_pack_body(b, op_data->op_suppgids[0]);
82 b->mbo_fid1 = op_data->op_fid1;
83 b->mbo_fid2 = op_data->op_fid2;
84 b->mbo_valid |= OBD_MD_FLID;
86 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
87 mdc_pack_capa(req, &RMF_CAPA2, op_data->op_capa2);
90 void mdc_pack_body(struct ptlrpc_request *req,
91 const struct lu_fid *fid, struct obd_capa *oc,
92 __u64 valid, size_t ea_size, __u32 suppgid, __u32 flags)
94 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
98 b->mbo_eadatasize = ea_size;
100 __mdc_pack_body(b, suppgid);
103 b->mbo_valid |= OBD_MD_FLID;
104 mdc_pack_capa(req, &RMF_CAPA1, oc);
109 * Pack a name (path component) into a request
111 * \param[in] req request
112 * \param[in] field request field (usually RMF_NAME)
113 * \param[in] name path component
114 * \param[in] name_len length of path component
116 * \a field must be present in \a req and of size \a name_len + 1.
118 * \a name must be '\0' terminated of length \a name_len and represent
119 * a single path component (not contain '/').
121 static void mdc_pack_name(struct ptlrpc_request *req,
122 const struct req_msg_field *field,
123 const char *name, size_t name_len)
129 buf = req_capsule_client_get(&req->rq_pill, field);
130 buf_size = req_capsule_get_size(&req->rq_pill, field, RCL_CLIENT);
132 LASSERT(name != NULL && name_len != 0 &&
133 buf != NULL && buf_size == name_len + 1);
135 cpy_len = strlcpy(buf, name, buf_size);
137 LASSERT(cpy_len == name_len && lu_name_is_valid_2(buf, cpy_len));
140 void mdc_readdir_pack(struct ptlrpc_request *req, __u64 pgoff, size_t size,
141 const struct lu_fid *fid, struct obd_capa *oc)
143 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
146 b->mbo_valid |= OBD_MD_FLID;
147 b->mbo_size = pgoff; /* !! */
148 b->mbo_nlink = size; /* !! */
149 __mdc_pack_body(b, -1);
150 b->mbo_mode = LUDA_FID | LUDA_TYPE;
152 mdc_pack_capa(req, &RMF_CAPA1, oc);
155 /* packing of MDS records */
156 void mdc_create_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
157 const void *data, size_t datalen, umode_t mode,
158 uid_t uid, gid_t gid, cfs_cap_t cap_effective, __u64 rdev)
160 struct mdt_rec_create *rec;
164 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_create));
165 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
168 rec->cr_opcode = REINT_CREATE;
171 rec->cr_cap = cap_effective;
172 rec->cr_fid1 = op_data->op_fid1;
173 rec->cr_fid2 = op_data->op_fid2;
176 rec->cr_time = op_data->op_mod_time;
177 rec->cr_suppgid1 = op_data->op_suppgids[0];
178 rec->cr_suppgid2 = op_data->op_suppgids[1];
179 flags = op_data->op_flags & MF_SOM_LOCAL_FLAGS;
180 if (op_data->op_bias & MDS_CREATE_VOLATILE)
181 flags |= MDS_OPEN_VOLATILE;
182 set_mrc_cr_flags(rec, flags);
183 rec->cr_bias = op_data->op_bias;
184 rec->cr_umask = current_umask();
186 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
188 mdc_pack_name(req, &RMF_NAME, op_data->op_name, op_data->op_namelen);
190 tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
191 memcpy(tmp, data, datalen);
195 static inline __u64 mds_pack_open_flags(__u64 flags)
197 __u64 cr_flags = (flags & (FMODE_READ | FMODE_WRITE |
198 MDS_OPEN_FL_INTERNAL));
201 cr_flags |= MDS_OPEN_CREAT;
203 cr_flags |= MDS_OPEN_EXCL;
205 cr_flags |= MDS_OPEN_TRUNC;
206 if (flags & O_APPEND)
207 cr_flags |= MDS_OPEN_APPEND;
209 cr_flags |= MDS_OPEN_SYNC;
210 if (flags & O_DIRECTORY)
211 cr_flags |= MDS_OPEN_DIRECTORY;
213 if (flags & FMODE_EXEC)
214 cr_flags |= MDS_FMODE_EXEC;
216 if (cl_is_lov_delay_create(flags))
217 cr_flags |= MDS_OPEN_DELAY_CREATE;
219 if (flags & O_NONBLOCK)
220 cr_flags |= MDS_OPEN_NORESTORE;
225 /* packing of MDS records */
226 void mdc_open_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
227 umode_t mode, __u64 rdev, __u64 flags, const void *lmm,
230 struct mdt_rec_create *rec;
234 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_create));
235 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
237 /* XXX do something about time, uid, gid */
238 rec->cr_opcode = REINT_OPEN;
239 rec->cr_fsuid = from_kuid(&init_user_ns, current_fsuid());
240 rec->cr_fsgid = from_kgid(&init_user_ns, current_fsgid());
241 rec->cr_cap = cfs_curproc_cap_pack();
243 cr_flags = mds_pack_open_flags(flags);
245 rec->cr_umask = current_umask();
246 if (op_data != NULL) {
247 rec->cr_fid1 = op_data->op_fid1;
248 rec->cr_fid2 = op_data->op_fid2;
249 rec->cr_time = op_data->op_mod_time;
250 rec->cr_suppgid1 = op_data->op_suppgids[0];
251 rec->cr_suppgid2 = op_data->op_suppgids[1];
252 rec->cr_bias = op_data->op_bias;
253 rec->cr_old_handle = op_data->op_handle;
255 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
256 /* the next buffer is child capa, which is used for replay,
257 * will be packed from the data in reply message. */
259 if (op_data->op_name) {
260 mdc_pack_name(req, &RMF_NAME, op_data->op_name,
261 op_data->op_namelen);
263 if (op_data->op_bias & MDS_CREATE_VOLATILE)
264 cr_flags |= MDS_OPEN_VOLATILE;
269 cr_flags |= MDS_OPEN_HAS_EA;
270 tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
271 memcpy(tmp, lmm, lmmlen);
273 set_mrc_cr_flags(rec, cr_flags);
276 static inline __u64 attr_pack(unsigned int ia_valid) {
279 if (ia_valid & ATTR_MODE)
280 sa_valid |= MDS_ATTR_MODE;
281 if (ia_valid & ATTR_UID)
282 sa_valid |= MDS_ATTR_UID;
283 if (ia_valid & ATTR_GID)
284 sa_valid |= MDS_ATTR_GID;
285 if (ia_valid & ATTR_SIZE)
286 sa_valid |= MDS_ATTR_SIZE;
287 if (ia_valid & ATTR_ATIME)
288 sa_valid |= MDS_ATTR_ATIME;
289 if (ia_valid & ATTR_MTIME)
290 sa_valid |= MDS_ATTR_MTIME;
291 if (ia_valid & ATTR_CTIME)
292 sa_valid |= MDS_ATTR_CTIME;
293 if (ia_valid & ATTR_ATIME_SET)
294 sa_valid |= MDS_ATTR_ATIME_SET;
295 if (ia_valid & ATTR_MTIME_SET)
296 sa_valid |= MDS_ATTR_MTIME_SET;
297 if (ia_valid & ATTR_FORCE)
298 sa_valid |= MDS_ATTR_FORCE;
299 if (ia_valid & ATTR_ATTR_FLAG)
300 sa_valid |= MDS_ATTR_ATTR_FLAG;
301 if (ia_valid & ATTR_KILL_SUID)
302 sa_valid |= MDS_ATTR_KILL_SUID;
303 if (ia_valid & ATTR_KILL_SGID)
304 sa_valid |= MDS_ATTR_KILL_SGID;
305 if (ia_valid & ATTR_CTIME_SET)
306 sa_valid |= MDS_ATTR_CTIME_SET;
307 if (ia_valid & ATTR_FROM_OPEN)
308 sa_valid |= MDS_ATTR_FROM_OPEN;
309 if (ia_valid & ATTR_BLOCKS)
310 sa_valid |= MDS_ATTR_BLOCKS;
311 if (ia_valid & MDS_OPEN_OWNEROVERRIDE)
312 /* NFSD hack (see bug 5781) */
313 sa_valid |= MDS_OPEN_OWNEROVERRIDE;
317 static void mdc_setattr_pack_rec(struct mdt_rec_setattr *rec,
318 struct md_op_data *op_data)
320 rec->sa_opcode = REINT_SETATTR;
321 rec->sa_fsuid = from_kuid(&init_user_ns, current_fsuid());
322 rec->sa_fsgid = from_kgid(&init_user_ns, current_fsgid());
323 rec->sa_cap = cfs_curproc_cap_pack();
324 rec->sa_suppgid = -1;
326 rec->sa_fid = op_data->op_fid1;
327 rec->sa_valid = attr_pack(op_data->op_attr.ia_valid);
328 rec->sa_mode = op_data->op_attr.ia_mode;
329 rec->sa_uid = from_kuid(&init_user_ns, op_data->op_attr.ia_uid);
330 rec->sa_gid = from_kgid(&init_user_ns, op_data->op_attr.ia_gid);
331 rec->sa_size = op_data->op_attr.ia_size;
332 rec->sa_blocks = op_data->op_attr_blocks;
333 rec->sa_atime = LTIME_S(op_data->op_attr.ia_atime);
334 rec->sa_mtime = LTIME_S(op_data->op_attr.ia_mtime);
335 rec->sa_ctime = LTIME_S(op_data->op_attr.ia_ctime);
336 rec->sa_attr_flags = op_data->op_attr_flags;
337 if ((op_data->op_attr.ia_valid & ATTR_GID) &&
338 in_group_p(op_data->op_attr.ia_gid))
340 from_kgid(&init_user_ns, op_data->op_attr.ia_gid);
342 rec->sa_suppgid = op_data->op_suppgids[0];
344 rec->sa_bias = op_data->op_bias;
347 static void mdc_ioepoch_pack(struct mdt_ioepoch *epoch,
348 struct md_op_data *op_data)
350 memcpy(&epoch->handle, &op_data->op_handle, sizeof(epoch->handle));
351 epoch->ioepoch = op_data->op_ioepoch;
352 epoch->flags = op_data->op_flags & MF_SOM_LOCAL_FLAGS;
355 void mdc_setattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
356 void *ea, size_t ealen, void *ea2, size_t ea2len)
358 struct mdt_rec_setattr *rec;
359 struct mdt_ioepoch *epoch;
360 struct lov_user_md *lum = NULL;
362 CLASSERT(sizeof(struct mdt_rec_reint) ==sizeof(struct mdt_rec_setattr));
363 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
364 mdc_setattr_pack_rec(rec, op_data);
366 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
368 if (op_data->op_flags & (MF_SOM_CHANGE | MF_EPOCH_OPEN)) {
369 epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
370 mdc_ioepoch_pack(epoch, op_data);
376 lum = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
377 if (ea == NULL) { /* Remove LOV EA */
378 lum->lmm_magic = cpu_to_le32(LOV_USER_MAGIC_V1);
379 lum->lmm_stripe_size = 0;
380 lum->lmm_stripe_count = 0;
381 lum->lmm_stripe_offset = (typeof(lum->lmm_stripe_offset))(-1);
383 memcpy(lum, ea, ealen);
389 memcpy(req_capsule_client_get(&req->rq_pill, &RMF_LOGCOOKIES), ea2,
393 void mdc_unlink_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
395 struct mdt_rec_unlink *rec;
397 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_unlink));
398 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
399 LASSERT(rec != NULL);
401 rec->ul_opcode = op_data->op_cli_flags & CLI_RM_ENTRY ?
402 REINT_RMENTRY : REINT_UNLINK;
403 rec->ul_fsuid = op_data->op_fsuid;
404 rec->ul_fsgid = op_data->op_fsgid;
405 rec->ul_cap = op_data->op_cap;
406 rec->ul_mode = op_data->op_mode;
407 rec->ul_suppgid1= op_data->op_suppgids[0];
408 rec->ul_suppgid2= -1;
409 rec->ul_fid1 = op_data->op_fid1;
410 rec->ul_fid2 = op_data->op_fid2;
411 rec->ul_time = op_data->op_mod_time;
412 rec->ul_bias = op_data->op_bias;
414 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
416 mdc_pack_name(req, &RMF_NAME, op_data->op_name, op_data->op_namelen);
419 void mdc_link_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
421 struct mdt_rec_link *rec;
423 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_link));
424 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
425 LASSERT (rec != NULL);
427 rec->lk_opcode = REINT_LINK;
428 rec->lk_fsuid = op_data->op_fsuid;//current->fsuid;
429 rec->lk_fsgid = op_data->op_fsgid;//current->fsgid;
430 rec->lk_cap = op_data->op_cap;//current->cap_effective;
431 rec->lk_suppgid1 = op_data->op_suppgids[0];
432 rec->lk_suppgid2 = op_data->op_suppgids[1];
433 rec->lk_fid1 = op_data->op_fid1;
434 rec->lk_fid2 = op_data->op_fid2;
435 rec->lk_time = op_data->op_mod_time;
436 rec->lk_bias = op_data->op_bias;
438 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
439 mdc_pack_capa(req, &RMF_CAPA2, op_data->op_capa2);
441 mdc_pack_name(req, &RMF_NAME, op_data->op_name, op_data->op_namelen);
444 void mdc_rename_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
445 const char *old, size_t oldlen,
446 const char *new, size_t newlen)
448 struct mdt_rec_rename *rec;
450 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_rename));
451 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
453 /* XXX do something about time, uid, gid */
454 rec->rn_opcode = op_data->op_cli_flags & CLI_MIGRATE ?
455 REINT_MIGRATE : REINT_RENAME;
456 rec->rn_fsuid = op_data->op_fsuid;
457 rec->rn_fsgid = op_data->op_fsgid;
458 rec->rn_cap = op_data->op_cap;
459 rec->rn_suppgid1 = op_data->op_suppgids[0];
460 rec->rn_suppgid2 = op_data->op_suppgids[1];
461 rec->rn_fid1 = op_data->op_fid1;
462 rec->rn_fid2 = op_data->op_fid2;
463 rec->rn_time = op_data->op_mod_time;
464 rec->rn_mode = op_data->op_mode;
465 rec->rn_bias = op_data->op_bias;
467 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
468 mdc_pack_capa(req, &RMF_CAPA2, op_data->op_capa2);
470 mdc_pack_name(req, &RMF_NAME, old, oldlen);
473 mdc_pack_name(req, &RMF_SYMTGT, new, newlen);
476 void mdc_getattr_pack(struct ptlrpc_request *req, __u64 valid, __u32 flags,
477 struct md_op_data *op_data, size_t ea_size)
479 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
482 b->mbo_valid = valid;
483 if (op_data->op_bias & MDS_CHECK_SPLIT)
484 b->mbo_valid |= OBD_MD_FLCKSPLIT;
485 if (op_data->op_bias & MDS_CROSS_REF)
486 b->mbo_valid |= OBD_MD_FLCROSSREF;
487 b->mbo_eadatasize = ea_size;
488 b->mbo_flags = flags;
489 __mdc_pack_body(b, op_data->op_suppgids[0]);
491 b->mbo_fid1 = op_data->op_fid1;
492 b->mbo_fid2 = op_data->op_fid2;
493 b->mbo_valid |= OBD_MD_FLID;
495 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
497 if (op_data->op_name != NULL)
498 mdc_pack_name(req, &RMF_NAME, op_data->op_name,
499 op_data->op_namelen);
502 static void mdc_hsm_release_pack(struct ptlrpc_request *req,
503 struct md_op_data *op_data)
505 if (op_data->op_bias & MDS_HSM_RELEASE) {
506 struct close_data *data;
507 struct ldlm_lock *lock;
509 data = req_capsule_client_get(&req->rq_pill, &RMF_CLOSE_DATA);
510 LASSERT(data != NULL);
512 lock = ldlm_handle2lock(&op_data->op_lease_handle);
514 data->cd_handle = lock->l_remote_handle;
517 ldlm_cli_cancel(&op_data->op_lease_handle, LCF_LOCAL);
519 data->cd_data_version = op_data->op_data_version;
520 data->cd_fid = op_data->op_fid2;
524 void mdc_close_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
526 struct mdt_ioepoch *epoch;
527 struct mdt_rec_setattr *rec;
529 epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
530 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
532 mdc_setattr_pack_rec(rec, op_data);
533 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
534 mdc_ioepoch_pack(epoch, op_data);
535 mdc_hsm_release_pack(req, op_data);