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)
61 b->mbo_suppgid = suppgid;
62 b->mbo_uid = from_kuid(&init_user_ns, current_uid());
63 b->mbo_gid = from_kgid(&init_user_ns, current_gid());
64 b->mbo_fsuid = from_kuid(&init_user_ns, current_fsuid());
65 b->mbo_fsgid = from_kgid(&init_user_ns, current_fsgid());
66 b->mbo_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_swap_layouts_pack(struct ptlrpc_request *req,
87 struct md_op_data *op_data)
89 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
92 __mdc_pack_body(b, op_data->op_suppgids[0]);
93 b->mbo_fid1 = op_data->op_fid1;
94 b->mbo_fid2 = op_data->op_fid2;
95 b->mbo_valid |= OBD_MD_FLID;
97 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
98 mdc_pack_capa(req, &RMF_CAPA2, op_data->op_capa2);
101 void mdc_pack_body(struct ptlrpc_request *req,
102 const struct lu_fid *fid, struct obd_capa *oc,
103 __u64 valid, int ea_size, __u32 suppgid, int flags)
105 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
108 b->mbo_valid = valid;
109 b->mbo_eadatasize = ea_size;
110 b->mbo_flags = flags;
111 __mdc_pack_body(b, suppgid);
114 b->mbo_valid |= OBD_MD_FLID;
115 mdc_pack_capa(req, &RMF_CAPA1, oc);
120 * Pack a name (path component) into a request
122 * \param[in] req request
123 * \param[in] field request field (usually RMF_NAME)
124 * \param[in] name path component
125 * \param[in] name_len length of path component
127 * \a field must be present in \a req and of size \a name_len + 1.
129 * \a name must be '\0' terminated of length \a name_len and represent
130 * a single path component (not contain '/').
132 static void mdc_pack_name(struct ptlrpc_request *req,
133 const struct req_msg_field *field,
134 const char *name, size_t name_len)
140 buf = req_capsule_client_get(&req->rq_pill, field);
141 buf_size = req_capsule_get_size(&req->rq_pill, field, RCL_CLIENT);
143 LASSERT(name != NULL && name_len != 0 &&
144 buf != NULL && buf_size == name_len + 1);
146 cpy_len = strlcpy(buf, name, buf_size);
148 LASSERT(cpy_len == name_len && lu_name_is_valid_2(buf, cpy_len));
151 void mdc_readdir_pack(struct ptlrpc_request *req, __u64 pgoff,
152 __u32 size, const struct lu_fid *fid, struct obd_capa *oc)
154 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
157 b->mbo_valid |= OBD_MD_FLID;
158 b->mbo_size = pgoff; /* !! */
159 b->mbo_nlink = size; /* !! */
160 __mdc_pack_body(b, -1);
161 b->mbo_mode = LUDA_FID | LUDA_TYPE;
163 mdc_pack_capa(req, &RMF_CAPA1, oc);
166 /* packing of MDS records */
167 void mdc_create_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
168 const void *data, int datalen, __u32 mode,
169 __u32 uid, __u32 gid, cfs_cap_t cap_effective, __u64 rdev)
171 struct mdt_rec_create *rec;
175 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_create));
176 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
179 rec->cr_opcode = REINT_CREATE;
182 rec->cr_cap = cap_effective;
183 rec->cr_fid1 = op_data->op_fid1;
184 rec->cr_fid2 = op_data->op_fid2;
187 rec->cr_time = op_data->op_mod_time;
188 rec->cr_suppgid1 = op_data->op_suppgids[0];
189 rec->cr_suppgid2 = op_data->op_suppgids[1];
190 flags = op_data->op_flags & MF_SOM_LOCAL_FLAGS;
191 if (op_data->op_bias & MDS_CREATE_VOLATILE)
192 flags |= MDS_OPEN_VOLATILE;
193 set_mrc_cr_flags(rec, flags);
194 rec->cr_bias = op_data->op_bias;
195 rec->cr_umask = current_umask();
197 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
199 mdc_pack_name(req, &RMF_NAME, op_data->op_name, op_data->op_namelen);
201 tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
202 memcpy(tmp, data, datalen);
206 static __u64 mds_pack_open_flags(__u64 flags, __u32 mode)
208 __u64 cr_flags = (flags & (FMODE_READ | FMODE_WRITE |
209 MDS_OPEN_FL_INTERNAL));
212 cr_flags |= MDS_OPEN_CREAT;
214 cr_flags |= MDS_OPEN_EXCL;
216 cr_flags |= MDS_OPEN_TRUNC;
217 if (flags & O_APPEND)
218 cr_flags |= MDS_OPEN_APPEND;
220 cr_flags |= MDS_OPEN_SYNC;
221 if (flags & O_DIRECTORY)
222 cr_flags |= MDS_OPEN_DIRECTORY;
224 if (flags & FMODE_EXEC)
225 cr_flags |= MDS_FMODE_EXEC;
227 if (cl_is_lov_delay_create(flags))
228 cr_flags |= MDS_OPEN_DELAY_CREATE;
230 if (flags & O_NONBLOCK)
231 cr_flags |= MDS_OPEN_NORESTORE;
236 /* packing of MDS records */
237 void mdc_open_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
238 __u32 mode, __u64 rdev, __u64 flags, const void *lmm,
241 struct mdt_rec_create *rec;
245 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_create));
246 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
248 /* XXX do something about time, uid, gid */
249 rec->cr_opcode = REINT_OPEN;
250 rec->cr_fsuid = from_kuid(&init_user_ns, current_fsuid());
251 rec->cr_fsgid = from_kgid(&init_user_ns, current_fsgid());
252 rec->cr_cap = cfs_curproc_cap_pack();
254 cr_flags = mds_pack_open_flags(flags, mode);
256 rec->cr_umask = current_umask();
257 if (op_data != NULL) {
258 rec->cr_fid1 = op_data->op_fid1;
259 rec->cr_fid2 = op_data->op_fid2;
260 rec->cr_time = op_data->op_mod_time;
261 rec->cr_suppgid1 = op_data->op_suppgids[0];
262 rec->cr_suppgid2 = op_data->op_suppgids[1];
263 rec->cr_bias = op_data->op_bias;
264 rec->cr_old_handle = op_data->op_handle;
266 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
267 /* the next buffer is child capa, which is used for replay,
268 * will be packed from the data in reply message. */
270 if (op_data->op_name) {
271 mdc_pack_name(req, &RMF_NAME, op_data->op_name,
272 op_data->op_namelen);
274 if (op_data->op_bias & MDS_CREATE_VOLATILE)
275 cr_flags |= MDS_OPEN_VOLATILE;
278 /*XXX a hack for liblustre to set EA (LL_IOC_LOV_SETSTRIPE) */
279 rec->cr_fid2 = op_data->op_fid2;
284 cr_flags |= MDS_OPEN_HAS_EA;
285 tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
286 memcpy(tmp, lmm, lmmlen);
288 set_mrc_cr_flags(rec, cr_flags);
291 static inline __u64 attr_pack(unsigned int ia_valid) {
294 if (ia_valid & ATTR_MODE)
295 sa_valid |= MDS_ATTR_MODE;
296 if (ia_valid & ATTR_UID)
297 sa_valid |= MDS_ATTR_UID;
298 if (ia_valid & ATTR_GID)
299 sa_valid |= MDS_ATTR_GID;
300 if (ia_valid & ATTR_SIZE)
301 sa_valid |= MDS_ATTR_SIZE;
302 if (ia_valid & ATTR_ATIME)
303 sa_valid |= MDS_ATTR_ATIME;
304 if (ia_valid & ATTR_MTIME)
305 sa_valid |= MDS_ATTR_MTIME;
306 if (ia_valid & ATTR_CTIME)
307 sa_valid |= MDS_ATTR_CTIME;
308 if (ia_valid & ATTR_ATIME_SET)
309 sa_valid |= MDS_ATTR_ATIME_SET;
310 if (ia_valid & ATTR_MTIME_SET)
311 sa_valid |= MDS_ATTR_MTIME_SET;
312 if (ia_valid & ATTR_FORCE)
313 sa_valid |= MDS_ATTR_FORCE;
314 if (ia_valid & ATTR_ATTR_FLAG)
315 sa_valid |= MDS_ATTR_ATTR_FLAG;
316 if (ia_valid & ATTR_KILL_SUID)
317 sa_valid |= MDS_ATTR_KILL_SUID;
318 if (ia_valid & ATTR_KILL_SGID)
319 sa_valid |= MDS_ATTR_KILL_SGID;
320 if (ia_valid & ATTR_CTIME_SET)
321 sa_valid |= MDS_ATTR_CTIME_SET;
322 if (ia_valid & ATTR_FROM_OPEN)
323 sa_valid |= MDS_ATTR_FROM_OPEN;
324 if (ia_valid & ATTR_BLOCKS)
325 sa_valid |= MDS_ATTR_BLOCKS;
326 if (ia_valid & MDS_OPEN_OWNEROVERRIDE)
327 /* NFSD hack (see bug 5781) */
328 sa_valid |= MDS_OPEN_OWNEROVERRIDE;
332 static void mdc_setattr_pack_rec(struct mdt_rec_setattr *rec,
333 struct md_op_data *op_data)
335 rec->sa_opcode = REINT_SETATTR;
336 rec->sa_fsuid = from_kuid(&init_user_ns, current_fsuid());
337 rec->sa_fsgid = from_kgid(&init_user_ns, current_fsgid());
338 rec->sa_cap = cfs_curproc_cap_pack();
339 rec->sa_suppgid = -1;
341 rec->sa_fid = op_data->op_fid1;
342 rec->sa_valid = attr_pack(op_data->op_attr.ia_valid);
343 rec->sa_mode = op_data->op_attr.ia_mode;
344 rec->sa_uid = from_kuid(&init_user_ns, op_data->op_attr.ia_uid);
345 rec->sa_gid = from_kgid(&init_user_ns, op_data->op_attr.ia_gid);
346 rec->sa_size = op_data->op_attr.ia_size;
347 rec->sa_blocks = op_data->op_attr_blocks;
348 rec->sa_atime = LTIME_S(op_data->op_attr.ia_atime);
349 rec->sa_mtime = LTIME_S(op_data->op_attr.ia_mtime);
350 rec->sa_ctime = LTIME_S(op_data->op_attr.ia_ctime);
352 ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags;
353 if ((op_data->op_attr.ia_valid & ATTR_GID) &&
354 in_group_p(op_data->op_attr.ia_gid))
356 from_kgid(&init_user_ns, op_data->op_attr.ia_gid);
358 rec->sa_suppgid = op_data->op_suppgids[0];
360 rec->sa_bias = op_data->op_bias;
363 static void mdc_ioepoch_pack(struct mdt_ioepoch *epoch,
364 struct md_op_data *op_data)
366 memcpy(&epoch->handle, &op_data->op_handle, sizeof(epoch->handle));
367 epoch->ioepoch = op_data->op_ioepoch;
368 epoch->flags = op_data->op_flags & MF_SOM_LOCAL_FLAGS;
371 void mdc_setattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
372 void *ea, int ealen, void *ea2, int ea2len)
374 struct mdt_rec_setattr *rec;
375 struct mdt_ioepoch *epoch;
376 struct lov_user_md *lum = NULL;
378 CLASSERT(sizeof(struct mdt_rec_reint) ==sizeof(struct mdt_rec_setattr));
379 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
380 mdc_setattr_pack_rec(rec, op_data);
382 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
384 if (op_data->op_flags & (MF_SOM_CHANGE | MF_EPOCH_OPEN)) {
385 epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
386 mdc_ioepoch_pack(epoch, op_data);
392 lum = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
393 if (ea == NULL) { /* Remove LOV EA */
394 lum->lmm_magic = LOV_USER_MAGIC_V1;
395 lum->lmm_stripe_size = 0;
396 lum->lmm_stripe_count = 0;
397 lum->lmm_stripe_offset = (typeof(lum->lmm_stripe_offset))(-1);
399 memcpy(lum, ea, ealen);
405 memcpy(req_capsule_client_get(&req->rq_pill, &RMF_LOGCOOKIES), ea2,
409 void mdc_unlink_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
411 struct mdt_rec_unlink *rec;
413 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_unlink));
414 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
415 LASSERT(rec != NULL);
417 rec->ul_opcode = op_data->op_cli_flags & CLI_RM_ENTRY ?
418 REINT_RMENTRY : REINT_UNLINK;
419 rec->ul_fsuid = op_data->op_fsuid;
420 rec->ul_fsgid = op_data->op_fsgid;
421 rec->ul_cap = op_data->op_cap;
422 rec->ul_mode = op_data->op_mode;
423 rec->ul_suppgid1= op_data->op_suppgids[0];
424 rec->ul_suppgid2= -1;
425 rec->ul_fid1 = op_data->op_fid1;
426 rec->ul_fid2 = op_data->op_fid2;
427 rec->ul_time = op_data->op_mod_time;
428 rec->ul_bias = op_data->op_bias;
430 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
432 mdc_pack_name(req, &RMF_NAME, op_data->op_name, op_data->op_namelen);
435 void mdc_link_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
437 struct mdt_rec_link *rec;
439 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_link));
440 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
441 LASSERT (rec != NULL);
443 rec->lk_opcode = REINT_LINK;
444 rec->lk_fsuid = op_data->op_fsuid;//current->fsuid;
445 rec->lk_fsgid = op_data->op_fsgid;//current->fsgid;
446 rec->lk_cap = op_data->op_cap;//current->cap_effective;
447 rec->lk_suppgid1 = op_data->op_suppgids[0];
448 rec->lk_suppgid2 = op_data->op_suppgids[1];
449 rec->lk_fid1 = op_data->op_fid1;
450 rec->lk_fid2 = op_data->op_fid2;
451 rec->lk_time = op_data->op_mod_time;
452 rec->lk_bias = op_data->op_bias;
454 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
455 mdc_pack_capa(req, &RMF_CAPA2, op_data->op_capa2);
457 mdc_pack_name(req, &RMF_NAME, op_data->op_name, op_data->op_namelen);
460 void mdc_rename_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
461 const char *old, int oldlen, const char *new, int newlen)
463 struct mdt_rec_rename *rec;
465 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_rename));
466 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
468 /* XXX do something about time, uid, gid */
469 rec->rn_opcode = op_data->op_cli_flags & CLI_MIGRATE ?
470 REINT_MIGRATE : REINT_RENAME;
471 rec->rn_fsuid = op_data->op_fsuid;
472 rec->rn_fsgid = op_data->op_fsgid;
473 rec->rn_cap = op_data->op_cap;
474 rec->rn_suppgid1 = op_data->op_suppgids[0];
475 rec->rn_suppgid2 = op_data->op_suppgids[1];
476 rec->rn_fid1 = op_data->op_fid1;
477 rec->rn_fid2 = op_data->op_fid2;
478 rec->rn_time = op_data->op_mod_time;
479 rec->rn_mode = op_data->op_mode;
480 rec->rn_bias = op_data->op_bias;
482 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
483 mdc_pack_capa(req, &RMF_CAPA2, op_data->op_capa2);
485 mdc_pack_name(req, &RMF_NAME, old, oldlen);
488 mdc_pack_name(req, &RMF_SYMTGT, new, newlen);
491 void mdc_getattr_pack(struct ptlrpc_request *req, __u64 valid, int flags,
492 struct md_op_data *op_data, int ea_size)
494 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
497 b->mbo_valid = valid;
498 if (op_data->op_bias & MDS_CHECK_SPLIT)
499 b->mbo_valid |= OBD_MD_FLCKSPLIT;
500 if (op_data->op_bias & MDS_CROSS_REF)
501 b->mbo_valid |= OBD_MD_FLCROSSREF;
502 b->mbo_eadatasize = ea_size;
503 b->mbo_flags = flags;
504 __mdc_pack_body(b, op_data->op_suppgids[0]);
506 b->mbo_fid1 = op_data->op_fid1;
507 b->mbo_fid2 = op_data->op_fid2;
508 b->mbo_valid |= OBD_MD_FLID;
510 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
512 if (op_data->op_name != NULL)
513 mdc_pack_name(req, &RMF_NAME, op_data->op_name,
514 op_data->op_namelen);
517 static void mdc_hsm_release_pack(struct ptlrpc_request *req,
518 struct md_op_data *op_data)
520 if (op_data->op_bias & MDS_HSM_RELEASE) {
521 struct close_data *data;
522 struct ldlm_lock *lock;
524 data = req_capsule_client_get(&req->rq_pill, &RMF_CLOSE_DATA);
525 LASSERT(data != NULL);
527 lock = ldlm_handle2lock(&op_data->op_lease_handle);
529 data->cd_handle = lock->l_remote_handle;
532 ldlm_cli_cancel(&op_data->op_lease_handle, LCF_LOCAL);
534 data->cd_data_version = op_data->op_data_version;
535 data->cd_fid = op_data->op_fid2;
539 void mdc_close_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
541 struct mdt_ioepoch *epoch;
542 struct mdt_rec_setattr *rec;
544 epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
545 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
547 mdc_setattr_pack_rec(rec, op_data);
548 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
549 mdc_ioepoch_pack(epoch, op_data);
550 mdc_hsm_release_pack(req, op_data);