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
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2013, 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
40 # include <liblustre.h>
42 #include <lustre_net.h>
43 #include <lustre/lustre_idl.h>
44 #include <obd_class.h>
46 #include <cl_object.h>
48 #include "mdc_internal.h"
51 /* some liblustre hackings here */
57 static void __mdc_pack_body(struct mdt_body *b, __u32 suppgid)
62 b->uid = from_kuid(&init_user_ns, current_uid());
63 b->gid = from_kgid(&init_user_ns, current_gid());
64 b->fsuid = from_kuid(&init_user_ns, current_fsuid());
65 b->fsgid = from_kgid(&init_user_ns, current_fsgid());
66 b->capability = cfs_curproc_cap_pack();
69 void mdc_pack_capa(struct ptlrpc_request *req, const struct req_msg_field *field,
72 struct req_capsule *pill = &req->rq_pill;
73 struct lustre_capa *c;
76 LASSERT(req_capsule_get_size(pill, field, RCL_CLIENT) == 0);
80 c = req_capsule_client_get(pill, field);
83 DEBUG_CAPA(D_SEC, c, "pack");
86 void mdc_is_subdir_pack(struct ptlrpc_request *req, const struct lu_fid *pfid,
87 const struct lu_fid *cfid, int flags)
89 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
94 b->valid = OBD_MD_FLID;
101 void mdc_swap_layouts_pack(struct ptlrpc_request *req,
102 struct md_op_data *op_data)
104 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
107 __mdc_pack_body(b, op_data->op_suppgids[0]);
108 b->fid1 = op_data->op_fid1;
109 b->fid2 = op_data->op_fid2;
110 b->valid |= OBD_MD_FLID;
112 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
113 mdc_pack_capa(req, &RMF_CAPA2, op_data->op_capa2);
116 void mdc_pack_body(struct ptlrpc_request *req,
117 const struct lu_fid *fid, struct obd_capa *oc,
118 __u64 valid, int ea_size, __u32 suppgid, int flags)
120 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
124 b->eadatasize = ea_size;
126 __mdc_pack_body(b, suppgid);
129 b->valid |= OBD_MD_FLID;
130 mdc_pack_capa(req, &RMF_CAPA1, oc);
135 * Pack a name (path component) into a request
137 * \param[in] req request
138 * \param[in] field request field (usually RMF_NAME)
139 * \param[in] name path component
140 * \param[in] name_len length of path component
142 * \a field must be present in \a req and of size \a name_len + 1.
144 * \a name must be '\0' terminated of length \a name_len and represent
145 * a single path component (not contain '/').
147 static void mdc_pack_name(struct ptlrpc_request *req,
148 const struct req_msg_field *field,
149 const char *name, size_t name_len)
155 buf = req_capsule_client_get(&req->rq_pill, field);
156 buf_size = req_capsule_get_size(&req->rq_pill, field, RCL_CLIENT);
158 LASSERT(name != NULL && name_len != 0 &&
159 buf != NULL && buf_size == name_len + 1);
161 cpy_len = strlcpy(buf, name, buf_size);
163 LASSERT(cpy_len == name_len && lu_name_is_valid_2(buf, cpy_len));
166 void mdc_readdir_pack(struct ptlrpc_request *req, __u64 pgoff,
167 __u32 size, const struct lu_fid *fid, struct obd_capa *oc)
169 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
172 b->valid |= OBD_MD_FLID;
173 b->size = pgoff; /* !! */
174 b->nlink = size; /* !! */
175 __mdc_pack_body(b, -1);
176 b->mode = LUDA_FID | LUDA_TYPE;
178 mdc_pack_capa(req, &RMF_CAPA1, oc);
181 /* packing of MDS records */
182 void mdc_create_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
183 const void *data, int datalen, __u32 mode,
184 __u32 uid, __u32 gid, cfs_cap_t cap_effective, __u64 rdev)
186 struct mdt_rec_create *rec;
190 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_create));
191 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
194 rec->cr_opcode = REINT_CREATE;
197 rec->cr_cap = cap_effective;
198 rec->cr_fid1 = op_data->op_fid1;
199 rec->cr_fid2 = op_data->op_fid2;
202 rec->cr_time = op_data->op_mod_time;
203 rec->cr_suppgid1 = op_data->op_suppgids[0];
204 rec->cr_suppgid2 = op_data->op_suppgids[1];
205 flags = op_data->op_flags & MF_SOM_LOCAL_FLAGS;
206 if (op_data->op_bias & MDS_CREATE_VOLATILE)
207 flags |= MDS_OPEN_VOLATILE;
208 set_mrc_cr_flags(rec, flags);
209 rec->cr_bias = op_data->op_bias;
210 rec->cr_umask = current_umask();
212 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
214 mdc_pack_name(req, &RMF_NAME, op_data->op_name, op_data->op_namelen);
216 tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
217 memcpy(tmp, data, datalen);
221 static __u64 mds_pack_open_flags(__u64 flags, __u32 mode)
223 __u64 cr_flags = (flags & (FMODE_READ | FMODE_WRITE |
224 MDS_OPEN_HAS_EA | MDS_OPEN_HAS_OBJS |
225 MDS_OPEN_OWNEROVERRIDE | MDS_OPEN_LOCK |
226 MDS_OPEN_BY_FID | MDS_OPEN_LEASE |
229 cr_flags |= MDS_OPEN_CREAT;
231 cr_flags |= MDS_OPEN_EXCL;
233 cr_flags |= MDS_OPEN_TRUNC;
234 if (flags & O_APPEND)
235 cr_flags |= MDS_OPEN_APPEND;
237 cr_flags |= MDS_OPEN_SYNC;
238 if (flags & O_DIRECTORY)
239 cr_flags |= MDS_OPEN_DIRECTORY;
241 if (flags & FMODE_EXEC)
242 cr_flags |= MDS_FMODE_EXEC;
244 if (cl_is_lov_delay_create(flags))
245 cr_flags |= MDS_OPEN_DELAY_CREATE;
247 if ((flags & O_NOACCESS) || (flags & O_NONBLOCK))
248 cr_flags |= MDS_OPEN_NORESTORE;
253 /* packing of MDS records */
254 void mdc_open_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
255 __u32 mode, __u64 rdev, __u64 flags, const void *lmm,
258 struct mdt_rec_create *rec;
262 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_create));
263 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
265 /* XXX do something about time, uid, gid */
266 rec->cr_opcode = REINT_OPEN;
267 rec->cr_fsuid = from_kuid(&init_user_ns, current_fsuid());
268 rec->cr_fsgid = from_kgid(&init_user_ns, current_fsgid());
269 rec->cr_cap = cfs_curproc_cap_pack();
271 cr_flags = mds_pack_open_flags(flags, mode);
273 rec->cr_umask = current_umask();
274 if (op_data != NULL) {
275 rec->cr_fid1 = op_data->op_fid1;
276 rec->cr_fid2 = op_data->op_fid2;
277 rec->cr_time = op_data->op_mod_time;
278 rec->cr_suppgid1 = op_data->op_suppgids[0];
279 rec->cr_suppgid2 = op_data->op_suppgids[1];
280 rec->cr_bias = op_data->op_bias;
281 rec->cr_old_handle = op_data->op_handle;
283 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
284 /* the next buffer is child capa, which is used for replay,
285 * will be packed from the data in reply message. */
287 if (op_data->op_name) {
288 mdc_pack_name(req, &RMF_NAME, op_data->op_name,
289 op_data->op_namelen);
291 if (op_data->op_bias & MDS_CREATE_VOLATILE)
292 cr_flags |= MDS_OPEN_VOLATILE;
295 /*XXX a hack for liblustre to set EA (LL_IOC_LOV_SETSTRIPE) */
296 rec->cr_fid2 = op_data->op_fid2;
301 cr_flags |= MDS_OPEN_HAS_EA;
302 tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
303 memcpy(tmp, lmm, lmmlen);
305 set_mrc_cr_flags(rec, cr_flags);
308 static inline __u64 attr_pack(unsigned int ia_valid) {
311 if (ia_valid & ATTR_MODE)
312 sa_valid |= MDS_ATTR_MODE;
313 if (ia_valid & ATTR_UID)
314 sa_valid |= MDS_ATTR_UID;
315 if (ia_valid & ATTR_GID)
316 sa_valid |= MDS_ATTR_GID;
317 if (ia_valid & ATTR_SIZE)
318 sa_valid |= MDS_ATTR_SIZE;
319 if (ia_valid & ATTR_ATIME)
320 sa_valid |= MDS_ATTR_ATIME;
321 if (ia_valid & ATTR_MTIME)
322 sa_valid |= MDS_ATTR_MTIME;
323 if (ia_valid & ATTR_CTIME)
324 sa_valid |= MDS_ATTR_CTIME;
325 if (ia_valid & ATTR_ATIME_SET)
326 sa_valid |= MDS_ATTR_ATIME_SET;
327 if (ia_valid & ATTR_MTIME_SET)
328 sa_valid |= MDS_ATTR_MTIME_SET;
329 if (ia_valid & ATTR_FORCE)
330 sa_valid |= MDS_ATTR_FORCE;
331 if (ia_valid & ATTR_ATTR_FLAG)
332 sa_valid |= MDS_ATTR_ATTR_FLAG;
333 if (ia_valid & ATTR_KILL_SUID)
334 sa_valid |= MDS_ATTR_KILL_SUID;
335 if (ia_valid & ATTR_KILL_SGID)
336 sa_valid |= MDS_ATTR_KILL_SGID;
337 if (ia_valid & ATTR_CTIME_SET)
338 sa_valid |= MDS_ATTR_CTIME_SET;
339 if (ia_valid & ATTR_FROM_OPEN)
340 sa_valid |= MDS_ATTR_FROM_OPEN;
341 if (ia_valid & ATTR_BLOCKS)
342 sa_valid |= MDS_ATTR_BLOCKS;
343 if (ia_valid & MDS_OPEN_OWNEROVERRIDE)
344 /* NFSD hack (see bug 5781) */
345 sa_valid |= MDS_OPEN_OWNEROVERRIDE;
349 static void mdc_setattr_pack_rec(struct mdt_rec_setattr *rec,
350 struct md_op_data *op_data)
352 rec->sa_opcode = REINT_SETATTR;
353 rec->sa_fsuid = from_kuid(&init_user_ns, current_fsuid());
354 rec->sa_fsgid = from_kgid(&init_user_ns, current_fsgid());
355 rec->sa_cap = cfs_curproc_cap_pack();
356 rec->sa_suppgid = -1;
358 rec->sa_fid = op_data->op_fid1;
359 rec->sa_valid = attr_pack(op_data->op_attr.ia_valid);
360 rec->sa_mode = op_data->op_attr.ia_mode;
361 rec->sa_uid = from_kuid(&init_user_ns, op_data->op_attr.ia_uid);
362 rec->sa_gid = from_kgid(&init_user_ns, op_data->op_attr.ia_gid);
363 rec->sa_size = op_data->op_attr.ia_size;
364 rec->sa_blocks = op_data->op_attr_blocks;
365 rec->sa_atime = LTIME_S(op_data->op_attr.ia_atime);
366 rec->sa_mtime = LTIME_S(op_data->op_attr.ia_mtime);
367 rec->sa_ctime = LTIME_S(op_data->op_attr.ia_ctime);
369 ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags;
370 if ((op_data->op_attr.ia_valid & ATTR_GID) &&
371 in_group_p(op_data->op_attr.ia_gid))
373 from_kgid(&init_user_ns, op_data->op_attr.ia_gid);
375 rec->sa_suppgid = op_data->op_suppgids[0];
377 rec->sa_bias = op_data->op_bias;
380 static void mdc_ioepoch_pack(struct mdt_ioepoch *epoch,
381 struct md_op_data *op_data)
383 memcpy(&epoch->handle, &op_data->op_handle, sizeof(epoch->handle));
384 epoch->ioepoch = op_data->op_ioepoch;
385 epoch->flags = op_data->op_flags & MF_SOM_LOCAL_FLAGS;
388 void mdc_setattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
389 void *ea, int ealen, void *ea2, int ea2len)
391 struct mdt_rec_setattr *rec;
392 struct mdt_ioepoch *epoch;
393 struct lov_user_md *lum = NULL;
395 CLASSERT(sizeof(struct mdt_rec_reint) ==sizeof(struct mdt_rec_setattr));
396 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
397 mdc_setattr_pack_rec(rec, op_data);
399 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
401 if (op_data->op_flags & (MF_SOM_CHANGE | MF_EPOCH_OPEN)) {
402 epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
403 mdc_ioepoch_pack(epoch, op_data);
409 lum = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
410 if (ea == NULL) { /* Remove LOV EA */
411 lum->lmm_magic = LOV_USER_MAGIC_V1;
412 lum->lmm_stripe_size = 0;
413 lum->lmm_stripe_count = 0;
414 lum->lmm_stripe_offset = (typeof(lum->lmm_stripe_offset))(-1);
416 memcpy(lum, ea, ealen);
422 memcpy(req_capsule_client_get(&req->rq_pill, &RMF_LOGCOOKIES), ea2,
426 void mdc_unlink_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
428 struct mdt_rec_unlink *rec;
430 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_unlink));
431 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
432 LASSERT(rec != NULL);
434 rec->ul_opcode = op_data->op_cli_flags & CLI_RM_ENTRY ?
435 REINT_RMENTRY : REINT_UNLINK;
436 rec->ul_fsuid = op_data->op_fsuid;
437 rec->ul_fsgid = op_data->op_fsgid;
438 rec->ul_cap = op_data->op_cap;
439 rec->ul_mode = op_data->op_mode;
440 rec->ul_suppgid1= op_data->op_suppgids[0];
441 rec->ul_suppgid2= -1;
442 rec->ul_fid1 = op_data->op_fid1;
443 rec->ul_fid2 = op_data->op_fid2;
444 rec->ul_time = op_data->op_mod_time;
445 rec->ul_bias = op_data->op_bias;
447 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
449 mdc_pack_name(req, &RMF_NAME, op_data->op_name, op_data->op_namelen);
452 void mdc_link_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
454 struct mdt_rec_link *rec;
456 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_link));
457 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
458 LASSERT (rec != NULL);
460 rec->lk_opcode = REINT_LINK;
461 rec->lk_fsuid = op_data->op_fsuid;//current->fsuid;
462 rec->lk_fsgid = op_data->op_fsgid;//current->fsgid;
463 rec->lk_cap = op_data->op_cap;//current->cap_effective;
464 rec->lk_suppgid1 = op_data->op_suppgids[0];
465 rec->lk_suppgid2 = op_data->op_suppgids[1];
466 rec->lk_fid1 = op_data->op_fid1;
467 rec->lk_fid2 = op_data->op_fid2;
468 rec->lk_time = op_data->op_mod_time;
469 rec->lk_bias = op_data->op_bias;
471 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
472 mdc_pack_capa(req, &RMF_CAPA2, op_data->op_capa2);
474 mdc_pack_name(req, &RMF_NAME, op_data->op_name, op_data->op_namelen);
477 void mdc_rename_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
478 const char *old, int oldlen, const char *new, int newlen)
480 struct mdt_rec_rename *rec;
482 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_rename));
483 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
485 /* XXX do something about time, uid, gid */
486 rec->rn_opcode = op_data->op_cli_flags & CLI_MIGRATE ?
487 REINT_MIGRATE : REINT_RENAME;
488 rec->rn_fsuid = op_data->op_fsuid;
489 rec->rn_fsgid = op_data->op_fsgid;
490 rec->rn_cap = op_data->op_cap;
491 rec->rn_suppgid1 = op_data->op_suppgids[0];
492 rec->rn_suppgid2 = op_data->op_suppgids[1];
493 rec->rn_fid1 = op_data->op_fid1;
494 rec->rn_fid2 = op_data->op_fid2;
495 rec->rn_time = op_data->op_mod_time;
496 rec->rn_mode = op_data->op_mode;
497 rec->rn_bias = op_data->op_bias;
499 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
500 mdc_pack_capa(req, &RMF_CAPA2, op_data->op_capa2);
502 mdc_pack_name(req, &RMF_NAME, old, oldlen);
505 mdc_pack_name(req, &RMF_SYMTGT, new, newlen);
508 void mdc_getattr_pack(struct ptlrpc_request *req, __u64 valid, int flags,
509 struct md_op_data *op_data, int ea_size)
511 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
515 if (op_data->op_bias & MDS_CHECK_SPLIT)
516 b->valid |= OBD_MD_FLCKSPLIT;
517 if (op_data->op_bias & MDS_CROSS_REF)
518 b->valid |= OBD_MD_FLCROSSREF;
519 b->eadatasize = ea_size;
521 __mdc_pack_body(b, op_data->op_suppgids[0]);
523 b->fid1 = op_data->op_fid1;
524 b->fid2 = op_data->op_fid2;
525 b->valid |= OBD_MD_FLID;
527 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
529 if (op_data->op_name != NULL)
530 mdc_pack_name(req, &RMF_NAME, op_data->op_name,
531 op_data->op_namelen);
534 static void mdc_hsm_release_pack(struct ptlrpc_request *req,
535 struct md_op_data *op_data)
537 if (op_data->op_bias & MDS_HSM_RELEASE) {
538 struct close_data *data;
539 struct ldlm_lock *lock;
541 data = req_capsule_client_get(&req->rq_pill, &RMF_CLOSE_DATA);
542 LASSERT(data != NULL);
544 lock = ldlm_handle2lock(&op_data->op_lease_handle);
546 data->cd_handle = lock->l_remote_handle;
549 ldlm_cli_cancel(&op_data->op_lease_handle, LCF_LOCAL);
551 data->cd_data_version = op_data->op_data_version;
552 data->cd_fid = op_data->op_fid2;
556 void mdc_close_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
558 struct mdt_ioepoch *epoch;
559 struct mdt_rec_setattr *rec;
561 epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
562 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
564 mdc_setattr_pack_rec(rec, op_data);
565 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
566 mdc_ioepoch_pack(epoch, op_data);
567 mdc_hsm_release_pack(req, op_data);