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,
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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).
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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, 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
38 #include <lustre_net.h>
39 #include <lustre/lustre_idl.h>
40 #include <obd_class.h>
42 #include <cl_object.h>
44 #include "mdc_internal.h"
47 static void __mdc_pack_body(struct mdt_body *b, __u32 suppgid)
51 b->mbo_suppgid = suppgid;
52 b->mbo_uid = from_kuid(&init_user_ns, current_uid());
53 b->mbo_gid = from_kgid(&init_user_ns, current_gid());
54 b->mbo_fsuid = from_kuid(&init_user_ns, current_fsuid());
55 b->mbo_fsgid = from_kgid(&init_user_ns, current_fsgid());
56 b->mbo_capability = cfs_curproc_cap_pack();
59 void mdc_pack_capa(struct ptlrpc_request *req, const struct req_msg_field *field,
62 struct req_capsule *pill = &req->rq_pill;
63 struct lustre_capa *c;
66 LASSERT(req_capsule_get_size(pill, field, RCL_CLIENT) == 0);
70 c = req_capsule_client_get(pill, field);
73 DEBUG_CAPA(D_SEC, c, "pack");
76 void mdc_swap_layouts_pack(struct ptlrpc_request *req,
77 struct md_op_data *op_data)
79 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
82 __mdc_pack_body(b, op_data->op_suppgids[0]);
83 b->mbo_fid1 = op_data->op_fid1;
84 b->mbo_fid2 = op_data->op_fid2;
85 b->mbo_valid |= OBD_MD_FLID;
87 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
88 mdc_pack_capa(req, &RMF_CAPA2, op_data->op_capa2);
91 void mdc_pack_body(struct ptlrpc_request *req,
92 const struct lu_fid *fid, struct obd_capa *oc,
93 __u64 valid, int ea_size, __u32 suppgid, int flags)
95 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
99 b->mbo_eadatasize = ea_size;
100 b->mbo_flags = flags;
101 __mdc_pack_body(b, suppgid);
104 b->mbo_valid |= OBD_MD_FLID;
105 mdc_pack_capa(req, &RMF_CAPA1, oc);
110 * Pack a name (path component) into a request
112 * \param[in] req request
113 * \param[in] field request field (usually RMF_NAME)
114 * \param[in] name path component
115 * \param[in] name_len length of path component
117 * \a field must be present in \a req and of size \a name_len + 1.
119 * \a name must be '\0' terminated of length \a name_len and represent
120 * a single path component (not contain '/').
122 static void mdc_pack_name(struct ptlrpc_request *req,
123 const struct req_msg_field *field,
124 const char *name, size_t name_len)
130 buf = req_capsule_client_get(&req->rq_pill, field);
131 buf_size = req_capsule_get_size(&req->rq_pill, field, RCL_CLIENT);
133 LASSERT(name != NULL && name_len != 0 &&
134 buf != NULL && buf_size == name_len + 1);
136 cpy_len = strlcpy(buf, name, buf_size);
138 LASSERT(cpy_len == name_len && lu_name_is_valid_2(buf, cpy_len));
141 void mdc_readdir_pack(struct ptlrpc_request *req, __u64 pgoff,
142 __u32 size, const struct lu_fid *fid, struct obd_capa *oc)
144 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
147 b->mbo_valid |= OBD_MD_FLID;
148 b->mbo_size = pgoff; /* !! */
149 b->mbo_nlink = size; /* !! */
150 __mdc_pack_body(b, -1);
151 b->mbo_mode = LUDA_FID | LUDA_TYPE;
153 mdc_pack_capa(req, &RMF_CAPA1, oc);
156 /* packing of MDS records */
157 void mdc_create_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
158 const void *data, int datalen, __u32 mode,
159 __u32 uid, __u32 gid, cfs_cap_t cap_effective, __u64 rdev)
161 struct mdt_rec_create *rec;
165 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_create));
166 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
169 rec->cr_opcode = REINT_CREATE;
172 rec->cr_cap = cap_effective;
173 rec->cr_fid1 = op_data->op_fid1;
174 rec->cr_fid2 = op_data->op_fid2;
177 rec->cr_time = op_data->op_mod_time;
178 rec->cr_suppgid1 = op_data->op_suppgids[0];
179 rec->cr_suppgid2 = op_data->op_suppgids[1];
180 flags = op_data->op_flags & MF_SOM_LOCAL_FLAGS;
181 if (op_data->op_bias & MDS_CREATE_VOLATILE)
182 flags |= MDS_OPEN_VOLATILE;
183 set_mrc_cr_flags(rec, flags);
184 rec->cr_bias = op_data->op_bias;
185 rec->cr_umask = current_umask();
187 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
189 mdc_pack_name(req, &RMF_NAME, op_data->op_name, op_data->op_namelen);
191 tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
192 memcpy(tmp, data, datalen);
196 static __u64 mds_pack_open_flags(__u64 flags, __u32 mode)
198 __u64 cr_flags = (flags & (FMODE_READ | FMODE_WRITE |
199 MDS_OPEN_FL_INTERNAL));
202 cr_flags |= MDS_OPEN_CREAT;
204 cr_flags |= MDS_OPEN_EXCL;
206 cr_flags |= MDS_OPEN_TRUNC;
207 if (flags & O_APPEND)
208 cr_flags |= MDS_OPEN_APPEND;
210 cr_flags |= MDS_OPEN_SYNC;
211 if (flags & O_DIRECTORY)
212 cr_flags |= MDS_OPEN_DIRECTORY;
214 if (flags & FMODE_EXEC)
215 cr_flags |= MDS_FMODE_EXEC;
217 if (cl_is_lov_delay_create(flags))
218 cr_flags |= MDS_OPEN_DELAY_CREATE;
220 if (flags & O_NONBLOCK)
221 cr_flags |= MDS_OPEN_NORESTORE;
226 /* packing of MDS records */
227 void mdc_open_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
228 __u32 mode, __u64 rdev, __u64 flags, const void *lmm,
231 struct mdt_rec_create *rec;
235 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_create));
236 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
238 /* XXX do something about time, uid, gid */
239 rec->cr_opcode = REINT_OPEN;
240 rec->cr_fsuid = from_kuid(&init_user_ns, current_fsuid());
241 rec->cr_fsgid = from_kgid(&init_user_ns, current_fsgid());
242 rec->cr_cap = cfs_curproc_cap_pack();
244 cr_flags = mds_pack_open_flags(flags, mode);
246 rec->cr_umask = current_umask();
247 if (op_data != NULL) {
248 rec->cr_fid1 = op_data->op_fid1;
249 rec->cr_fid2 = op_data->op_fid2;
250 rec->cr_time = op_data->op_mod_time;
251 rec->cr_suppgid1 = op_data->op_suppgids[0];
252 rec->cr_suppgid2 = op_data->op_suppgids[1];
253 rec->cr_bias = op_data->op_bias;
254 rec->cr_old_handle = op_data->op_handle;
256 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
257 /* the next buffer is child capa, which is used for replay,
258 * will be packed from the data in reply message. */
260 if (op_data->op_name) {
261 mdc_pack_name(req, &RMF_NAME, op_data->op_name,
262 op_data->op_namelen);
264 if (op_data->op_bias & MDS_CREATE_VOLATILE)
265 cr_flags |= MDS_OPEN_VOLATILE;
270 cr_flags |= MDS_OPEN_HAS_EA;
271 tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
272 memcpy(tmp, lmm, lmmlen);
274 set_mrc_cr_flags(rec, cr_flags);
277 static inline __u64 attr_pack(unsigned int ia_valid) {
280 if (ia_valid & ATTR_MODE)
281 sa_valid |= MDS_ATTR_MODE;
282 if (ia_valid & ATTR_UID)
283 sa_valid |= MDS_ATTR_UID;
284 if (ia_valid & ATTR_GID)
285 sa_valid |= MDS_ATTR_GID;
286 if (ia_valid & ATTR_SIZE)
287 sa_valid |= MDS_ATTR_SIZE;
288 if (ia_valid & ATTR_ATIME)
289 sa_valid |= MDS_ATTR_ATIME;
290 if (ia_valid & ATTR_MTIME)
291 sa_valid |= MDS_ATTR_MTIME;
292 if (ia_valid & ATTR_CTIME)
293 sa_valid |= MDS_ATTR_CTIME;
294 if (ia_valid & ATTR_ATIME_SET)
295 sa_valid |= MDS_ATTR_ATIME_SET;
296 if (ia_valid & ATTR_MTIME_SET)
297 sa_valid |= MDS_ATTR_MTIME_SET;
298 if (ia_valid & ATTR_FORCE)
299 sa_valid |= MDS_ATTR_FORCE;
300 if (ia_valid & ATTR_ATTR_FLAG)
301 sa_valid |= MDS_ATTR_ATTR_FLAG;
302 if (ia_valid & ATTR_KILL_SUID)
303 sa_valid |= MDS_ATTR_KILL_SUID;
304 if (ia_valid & ATTR_KILL_SGID)
305 sa_valid |= MDS_ATTR_KILL_SGID;
306 if (ia_valid & ATTR_CTIME_SET)
307 sa_valid |= MDS_ATTR_CTIME_SET;
308 if (ia_valid & ATTR_FROM_OPEN)
309 sa_valid |= MDS_ATTR_FROM_OPEN;
310 if (ia_valid & ATTR_BLOCKS)
311 sa_valid |= MDS_ATTR_BLOCKS;
312 if (ia_valid & MDS_OPEN_OWNEROVERRIDE)
313 /* NFSD hack (see bug 5781) */
314 sa_valid |= MDS_OPEN_OWNEROVERRIDE;
318 static void mdc_setattr_pack_rec(struct mdt_rec_setattr *rec,
319 struct md_op_data *op_data)
321 rec->sa_opcode = REINT_SETATTR;
322 rec->sa_fsuid = from_kuid(&init_user_ns, current_fsuid());
323 rec->sa_fsgid = from_kgid(&init_user_ns, current_fsgid());
324 rec->sa_cap = cfs_curproc_cap_pack();
325 rec->sa_suppgid = -1;
327 rec->sa_fid = op_data->op_fid1;
328 rec->sa_valid = attr_pack(op_data->op_attr.ia_valid);
329 rec->sa_mode = op_data->op_attr.ia_mode;
330 rec->sa_uid = from_kuid(&init_user_ns, op_data->op_attr.ia_uid);
331 rec->sa_gid = from_kgid(&init_user_ns, op_data->op_attr.ia_gid);
332 rec->sa_size = op_data->op_attr.ia_size;
333 rec->sa_blocks = op_data->op_attr_blocks;
334 rec->sa_atime = LTIME_S(op_data->op_attr.ia_atime);
335 rec->sa_mtime = LTIME_S(op_data->op_attr.ia_mtime);
336 rec->sa_ctime = LTIME_S(op_data->op_attr.ia_ctime);
338 ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags;
339 if ((op_data->op_attr.ia_valid & ATTR_GID) &&
340 in_group_p(op_data->op_attr.ia_gid))
342 from_kgid(&init_user_ns, op_data->op_attr.ia_gid);
344 rec->sa_suppgid = op_data->op_suppgids[0];
346 rec->sa_bias = op_data->op_bias;
349 static void mdc_ioepoch_pack(struct mdt_ioepoch *epoch,
350 struct md_op_data *op_data)
352 memcpy(&epoch->handle, &op_data->op_handle, sizeof(epoch->handle));
353 epoch->ioepoch = op_data->op_ioepoch;
354 epoch->flags = op_data->op_flags & MF_SOM_LOCAL_FLAGS;
357 void mdc_setattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
358 void *ea, int ealen, void *ea2, int ea2len)
360 struct mdt_rec_setattr *rec;
361 struct mdt_ioepoch *epoch;
362 struct lov_user_md *lum = NULL;
364 CLASSERT(sizeof(struct mdt_rec_reint) ==sizeof(struct mdt_rec_setattr));
365 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
366 mdc_setattr_pack_rec(rec, op_data);
368 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
370 if (op_data->op_flags & (MF_SOM_CHANGE | MF_EPOCH_OPEN)) {
371 epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
372 mdc_ioepoch_pack(epoch, op_data);
378 lum = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
379 if (ea == NULL) { /* Remove LOV EA */
380 lum->lmm_magic = LOV_USER_MAGIC_V1;
381 lum->lmm_stripe_size = 0;
382 lum->lmm_stripe_count = 0;
383 lum->lmm_stripe_offset = (typeof(lum->lmm_stripe_offset))(-1);
385 memcpy(lum, ea, ealen);
391 memcpy(req_capsule_client_get(&req->rq_pill, &RMF_LOGCOOKIES), ea2,
395 void mdc_unlink_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
397 struct mdt_rec_unlink *rec;
399 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_unlink));
400 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
401 LASSERT(rec != NULL);
403 rec->ul_opcode = op_data->op_cli_flags & CLI_RM_ENTRY ?
404 REINT_RMENTRY : REINT_UNLINK;
405 rec->ul_fsuid = op_data->op_fsuid;
406 rec->ul_fsgid = op_data->op_fsgid;
407 rec->ul_cap = op_data->op_cap;
408 rec->ul_mode = op_data->op_mode;
409 rec->ul_suppgid1= op_data->op_suppgids[0];
410 rec->ul_suppgid2= -1;
411 rec->ul_fid1 = op_data->op_fid1;
412 rec->ul_fid2 = op_data->op_fid2;
413 rec->ul_time = op_data->op_mod_time;
414 rec->ul_bias = op_data->op_bias;
416 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
418 mdc_pack_name(req, &RMF_NAME, op_data->op_name, op_data->op_namelen);
421 void mdc_link_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
423 struct mdt_rec_link *rec;
425 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_link));
426 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
427 LASSERT (rec != NULL);
429 rec->lk_opcode = REINT_LINK;
430 rec->lk_fsuid = op_data->op_fsuid;//current->fsuid;
431 rec->lk_fsgid = op_data->op_fsgid;//current->fsgid;
432 rec->lk_cap = op_data->op_cap;//current->cap_effective;
433 rec->lk_suppgid1 = op_data->op_suppgids[0];
434 rec->lk_suppgid2 = op_data->op_suppgids[1];
435 rec->lk_fid1 = op_data->op_fid1;
436 rec->lk_fid2 = op_data->op_fid2;
437 rec->lk_time = op_data->op_mod_time;
438 rec->lk_bias = op_data->op_bias;
440 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
441 mdc_pack_capa(req, &RMF_CAPA2, op_data->op_capa2);
443 mdc_pack_name(req, &RMF_NAME, op_data->op_name, op_data->op_namelen);
446 void mdc_rename_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
447 const char *old, int oldlen, const char *new, int newlen)
449 struct mdt_rec_rename *rec;
451 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_rename));
452 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
454 /* XXX do something about time, uid, gid */
455 rec->rn_opcode = op_data->op_cli_flags & CLI_MIGRATE ?
456 REINT_MIGRATE : REINT_RENAME;
457 rec->rn_fsuid = op_data->op_fsuid;
458 rec->rn_fsgid = op_data->op_fsgid;
459 rec->rn_cap = op_data->op_cap;
460 rec->rn_suppgid1 = op_data->op_suppgids[0];
461 rec->rn_suppgid2 = op_data->op_suppgids[1];
462 rec->rn_fid1 = op_data->op_fid1;
463 rec->rn_fid2 = op_data->op_fid2;
464 rec->rn_time = op_data->op_mod_time;
465 rec->rn_mode = op_data->op_mode;
466 rec->rn_bias = op_data->op_bias;
468 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
469 mdc_pack_capa(req, &RMF_CAPA2, op_data->op_capa2);
471 mdc_pack_name(req, &RMF_NAME, old, oldlen);
474 mdc_pack_name(req, &RMF_SYMTGT, new, newlen);
477 void mdc_getattr_pack(struct ptlrpc_request *req, __u64 valid, int flags,
478 struct md_op_data *op_data, int ea_size)
480 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
483 b->mbo_valid = valid;
484 if (op_data->op_bias & MDS_CHECK_SPLIT)
485 b->mbo_valid |= OBD_MD_FLCKSPLIT;
486 if (op_data->op_bias & MDS_CROSS_REF)
487 b->mbo_valid |= OBD_MD_FLCROSSREF;
488 b->mbo_eadatasize = ea_size;
489 b->mbo_flags = flags;
490 __mdc_pack_body(b, op_data->op_suppgids[0]);
492 b->mbo_fid1 = op_data->op_fid1;
493 b->mbo_fid2 = op_data->op_fid2;
494 b->mbo_valid |= OBD_MD_FLID;
496 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
498 if (op_data->op_name != NULL)
499 mdc_pack_name(req, &RMF_NAME, op_data->op_name,
500 op_data->op_namelen);
503 static void mdc_hsm_release_pack(struct ptlrpc_request *req,
504 struct md_op_data *op_data)
506 if (op_data->op_bias & MDS_HSM_RELEASE) {
507 struct close_data *data;
508 struct ldlm_lock *lock;
510 data = req_capsule_client_get(&req->rq_pill, &RMF_CLOSE_DATA);
511 LASSERT(data != NULL);
513 lock = ldlm_handle2lock(&op_data->op_lease_handle);
515 data->cd_handle = lock->l_remote_handle;
518 ldlm_cli_cancel(&op_data->op_lease_handle, LCF_LOCAL);
520 data->cd_data_version = op_data->op_data_version;
521 data->cd_fid = op_data->op_fid2;
525 void mdc_close_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
527 struct mdt_ioepoch *epoch;
528 struct mdt_rec_setattr *rec;
530 epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
531 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
533 mdc_setattr_pack_rec(rec, op_data);
534 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
535 mdc_ioepoch_pack(epoch, op_data);
536 mdc_hsm_release_pack(req, op_data);