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) 2007, 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.
36 * lustre/mdt/mdt_lib.c
38 * Lustre Metadata Target (mdt) request unpacking helper.
40 * Author: Peter Braam <braam@clusterfs.com>
41 * Author: Andreas Dilger <adilger@clusterfs.com>
42 * Author: Phil Schwan <phil@clusterfs.com>
43 * Author: Mike Shaver <shaver@clusterfs.com>
44 * Author: Nikita Danilov <nikita@clusterfs.com>
45 * Author: Huang Hua <huanghua@clusterfs.com>
46 * Author: Fan Yong <fanyong@clusterfs.com>
49 #define DEBUG_SUBSYSTEM S_MDS
51 #include "mdt_internal.h"
52 #include <lnet/nidstr.h>
53 #include <lustre_nodemap.h>
55 typedef enum ucred_init_type {
61 void mdt_exit_ucred(struct mdt_thread_info *info)
63 struct lu_ucred *uc = mdt_ucred(info);
64 struct mdt_device *mdt = info->mti_mdt;
67 if (uc->uc_valid != UCRED_INIT) {
68 uc->uc_suppgids[0] = uc->uc_suppgids[1] = -1;
70 put_group_info(uc->uc_ginfo);
73 if (uc->uc_identity) {
74 mdt_identity_put(mdt->mdt_identity_cache,
76 uc->uc_identity = NULL;
78 uc->uc_valid = UCRED_INIT;
82 static int match_nosquash_list(struct rw_semaphore *sem,
83 struct list_head *nidlist,
89 rc = cfs_match_nid(peernid, nidlist);
94 /* root_squash for inter-MDS operations */
95 static int mdt_root_squash(struct mdt_thread_info *info, lnet_nid_t peernid)
97 struct lu_ucred *ucred = mdt_ucred(info);
98 struct root_squash_info *squash = &info->mti_mdt->mdt_squash;
101 LASSERT(ucred != NULL);
102 if (!squash->rsi_uid || ucred->uc_fsuid)
105 if (match_nosquash_list(&squash->rsi_sem,
106 &squash->rsi_nosquash_nids,
108 CDEBUG(D_OTHER, "%s is in nosquash_nids list\n",
109 libcfs_nid2str(peernid));
113 CDEBUG(D_OTHER, "squash req from %s, (%d:%d/%x)=>(%d:%d/%x)\n",
114 libcfs_nid2str(peernid),
115 ucred->uc_fsuid, ucred->uc_fsgid, ucred->uc_cap,
116 squash->rsi_uid, squash->rsi_gid, 0);
118 ucred->uc_fsuid = squash->rsi_uid;
119 ucred->uc_fsgid = squash->rsi_gid;
121 ucred->uc_suppgids[0] = -1;
122 ucred->uc_suppgids[1] = -1;
127 static void ucred_set_jobid(struct mdt_thread_info *info, struct lu_ucred *uc)
129 struct ptlrpc_request *req = mdt_info_req(info);
130 const char *jobid = mdt_req_get_jobid(req);
132 /* set jobid if specified. */
134 strlcpy(uc->uc_jobid, jobid, sizeof(uc->uc_jobid));
136 uc->uc_jobid[0] = '\0';
139 static int new_init_ucred(struct mdt_thread_info *info, ucred_init_type_t type,
142 struct ptlrpc_request *req = mdt_info_req(info);
143 struct mdt_device *mdt = info->mti_mdt;
144 struct ptlrpc_user_desc *pud = req->rq_user_desc;
145 struct lu_ucred *ucred = mdt_ucred(info);
146 lnet_nid_t peernid = req->rq_peer.nid;
148 __u32 remote = exp_connect_rmtclient(info->mti_exp);
155 LASSERT(req->rq_auth_gss);
156 LASSERT(!req->rq_auth_usr_mdt);
157 LASSERT(req->rq_user_desc);
158 LASSERT(ucred != NULL);
160 ucred->uc_valid = UCRED_INVALID;
162 ucred->uc_o_uid = pud->pud_uid;
163 ucred->uc_o_gid = pud->pud_gid;
164 ucred->uc_o_fsuid = pud->pud_fsuid;
165 ucred->uc_o_fsgid = pud->pud_fsgid;
167 if (type == BODY_INIT) {
168 struct mdt_body *body = (struct mdt_body *)buf;
170 ucred->uc_suppgids[0] = body->mbo_suppgid;
171 ucred->uc_suppgids[1] = -1;
174 /* sanity check: we expect the uid which client claimed is true */
176 if (!uid_valid(make_kuid(&init_user_ns, req->rq_auth_mapped_uid))) {
177 CDEBUG(D_SEC, "remote user not mapped, deny access!\n");
181 if (ptlrpc_user_desc_do_idmap(req, pud))
184 if (req->rq_auth_mapped_uid != pud->pud_uid) {
185 CDEBUG(D_SEC, "remote client %s: auth/mapped uid %u/%u "
186 "while client claims %u:%u/%u:%u\n",
187 libcfs_nid2str(peernid), req->rq_auth_uid,
188 req->rq_auth_mapped_uid,
189 pud->pud_uid, pud->pud_gid,
190 pud->pud_fsuid, pud->pud_fsgid);
194 if (req->rq_auth_uid != pud->pud_uid) {
195 CDEBUG(D_SEC, "local client %s: auth uid %u "
196 "while client claims %u:%u/%u:%u\n",
197 libcfs_nid2str(peernid), req->rq_auth_uid,
198 pud->pud_uid, pud->pud_gid,
199 pud->pud_fsuid, pud->pud_fsgid);
204 if (is_identity_get_disabled(mdt->mdt_identity_cache)) {
206 CDEBUG(D_SEC, "remote client must run with identity_get "
210 ucred->uc_identity = NULL;
211 perm = CFS_SETUID_PERM | CFS_SETGID_PERM |
215 struct md_identity *identity;
217 identity = mdt_identity_get(mdt->mdt_identity_cache,
219 if (IS_ERR(identity)) {
220 if (unlikely(PTR_ERR(identity) == -EREMCHG &&
222 ucred->uc_identity = NULL;
223 perm = CFS_SETUID_PERM | CFS_SETGID_PERM |
226 CDEBUG(D_SEC, "Deny access without identity: uid %u\n",
231 ucred->uc_identity = identity;
232 perm = mdt_identity_get_perm(ucred->uc_identity,
237 /* find out the setuid/setgid attempt */
238 setuid = (pud->pud_uid != pud->pud_fsuid);
239 setgid = ((pud->pud_gid != pud->pud_fsgid) ||
240 (ucred->uc_identity &&
241 (pud->pud_gid != ucred->uc_identity->mi_gid)));
243 /* check permission of setuid */
244 if (setuid && !(perm & CFS_SETUID_PERM)) {
245 CDEBUG(D_SEC, "mdt blocked setuid attempt (%u -> %u) from %s\n",
246 pud->pud_uid, pud->pud_fsuid, libcfs_nid2str(peernid));
247 GOTO(out, rc = -EACCES);
250 /* check permission of setgid */
251 if (setgid && !(perm & CFS_SETGID_PERM)) {
252 CDEBUG(D_SEC, "mdt blocked setgid attempt (%u:%u/%u:%u -> %u) "
253 "from %s\n", pud->pud_uid, pud->pud_gid,
254 pud->pud_fsuid, pud->pud_fsgid,
255 ucred->uc_identity->mi_gid, libcfs_nid2str(peernid));
256 GOTO(out, rc = -EACCES);
260 * NB: remote client not allowed to setgroups anyway.
262 if (!remote && perm & CFS_SETGRP_PERM) {
263 if (pud->pud_ngroups) {
264 /* setgroups for local client */
265 ucred->uc_ginfo = groups_alloc(pud->pud_ngroups);
266 if (!ucred->uc_ginfo) {
267 CERROR("failed to alloc %d groups\n",
269 GOTO(out, rc = -ENOMEM);
272 lustre_groups_from_list(ucred->uc_ginfo,
274 lustre_groups_sort(ucred->uc_ginfo);
276 ucred->uc_ginfo = NULL;
279 ucred->uc_suppgids[0] = -1;
280 ucred->uc_suppgids[1] = -1;
281 ucred->uc_ginfo = NULL;
284 ucred->uc_uid = pud->pud_uid;
285 ucred->uc_gid = pud->pud_gid;
286 ucred->uc_fsuid = pud->pud_fsuid;
287 ucred->uc_fsgid = pud->pud_fsgid;
289 /* process root_squash here. */
290 mdt_root_squash(info, peernid);
292 /* remove fs privilege for non-root user. */
294 ucred->uc_cap = pud->pud_cap & ~CFS_CAP_FS_MASK;
296 ucred->uc_cap = pud->pud_cap;
297 if (remote && !(perm & CFS_RMTOWN_PERM))
298 ucred->uc_cap &= ~(CFS_CAP_SYS_RESOURCE_MASK |
300 ucred->uc_valid = UCRED_NEW;
301 ucred_set_jobid(info, ucred);
307 if (ucred->uc_ginfo) {
308 put_group_info(ucred->uc_ginfo);
309 ucred->uc_ginfo = NULL;
311 if (ucred->uc_identity) {
312 mdt_identity_put(mdt->mdt_identity_cache,
314 ucred->uc_identity = NULL;
321 int mdt_check_ucred(struct mdt_thread_info *info)
323 struct ptlrpc_request *req = mdt_info_req(info);
324 struct mdt_device *mdt = info->mti_mdt;
325 struct ptlrpc_user_desc *pud = req->rq_user_desc;
326 struct lu_ucred *ucred = mdt_ucred(info);
327 struct md_identity *identity = NULL;
328 lnet_nid_t peernid = req->rq_peer.nid;
330 __u32 remote = exp_connect_rmtclient(info->mti_exp);
337 LASSERT(ucred != NULL);
338 if ((ucred->uc_valid == UCRED_OLD) || (ucred->uc_valid == UCRED_NEW))
341 if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
344 /* sanity check: if we use strong authentication, we expect the
345 * uid which client claimed is true */
347 if (!uid_valid(make_kuid(&init_user_ns, req->rq_auth_mapped_uid))) {
348 CDEBUG(D_SEC, "remote user not mapped, deny access!\n");
352 if (ptlrpc_user_desc_do_idmap(req, pud))
355 if (req->rq_auth_mapped_uid != pud->pud_uid) {
356 CDEBUG(D_SEC, "remote client %s: auth/mapped uid %u/%u "
357 "while client claims %u:%u/%u:%u\n",
358 libcfs_nid2str(peernid), req->rq_auth_uid,
359 req->rq_auth_mapped_uid,
360 pud->pud_uid, pud->pud_gid,
361 pud->pud_fsuid, pud->pud_fsgid);
365 if (req->rq_auth_uid != pud->pud_uid) {
366 CDEBUG(D_SEC, "local client %s: auth uid %u "
367 "while client claims %u:%u/%u:%u\n",
368 libcfs_nid2str(peernid), req->rq_auth_uid,
369 pud->pud_uid, pud->pud_gid,
370 pud->pud_fsuid, pud->pud_fsgid);
375 if (is_identity_get_disabled(mdt->mdt_identity_cache)) {
377 CDEBUG(D_SEC, "remote client must run with identity_get "
384 identity = mdt_identity_get(mdt->mdt_identity_cache, pud->pud_uid);
385 if (IS_ERR(identity)) {
386 if (unlikely(PTR_ERR(identity) == -EREMCHG &&
390 CDEBUG(D_SEC, "Deny access without identity: uid %u\n",
396 perm = mdt_identity_get_perm(identity, remote, peernid);
397 /* find out the setuid/setgid attempt */
398 setuid = (pud->pud_uid != pud->pud_fsuid);
399 setgid = (pud->pud_gid != pud->pud_fsgid ||
400 pud->pud_gid != identity->mi_gid);
402 /* check permission of setuid */
403 if (setuid && !(perm & CFS_SETUID_PERM)) {
404 CDEBUG(D_SEC, "mdt blocked setuid attempt (%u -> %u) from %s\n",
405 pud->pud_uid, pud->pud_fsuid, libcfs_nid2str(peernid));
406 GOTO(out, rc = -EACCES);
409 /* check permission of setgid */
410 if (setgid && !(perm & CFS_SETGID_PERM)) {
411 CDEBUG(D_SEC, "mdt blocked setgid attempt (%u:%u/%u:%u -> %u) "
412 "from %s\n", pud->pud_uid, pud->pud_gid,
413 pud->pud_fsuid, pud->pud_fsgid, identity->mi_gid,
414 libcfs_nid2str(peernid));
415 GOTO(out, rc = -EACCES);
421 mdt_identity_put(mdt->mdt_identity_cache, identity);
425 static void mdt_squash_nodemap_id(struct lu_ucred *ucred,
426 struct lu_nodemap *nodemap)
428 if (ucred->uc_o_uid == nodemap->nm_squash_uid) {
429 ucred->uc_fsuid = nodemap->nm_squash_uid;
430 ucred->uc_fsgid = nodemap->nm_squash_gid;
432 ucred->uc_suppgids[0] = -1;
433 ucred->uc_suppgids[1] = -1;
438 static int old_init_ucred(struct mdt_thread_info *info,
439 struct mdt_body *body)
441 struct lu_ucred *uc = mdt_ucred(info);
442 struct mdt_device *mdt = info->mti_mdt;
443 struct md_identity *identity = NULL;
444 struct lu_nodemap *nodemap =
445 info->mti_exp->exp_target_data.ted_nodemap;
448 body->mbo_uid = nodemap_map_id(nodemap, NODEMAP_UID,
449 NODEMAP_CLIENT_TO_FS, body->mbo_uid);
450 body->mbo_gid = nodemap_map_id(nodemap, NODEMAP_GID,
451 NODEMAP_CLIENT_TO_FS, body->mbo_gid);
452 body->mbo_fsuid = nodemap_map_id(nodemap, NODEMAP_UID,
453 NODEMAP_CLIENT_TO_FS, body->mbo_fsuid);
454 body->mbo_fsgid = nodemap_map_id(nodemap, NODEMAP_GID,
455 NODEMAP_CLIENT_TO_FS, body->mbo_fsgid);
458 uc->uc_valid = UCRED_INVALID;
459 uc->uc_o_uid = uc->uc_uid = body->mbo_uid;
460 uc->uc_o_gid = uc->uc_gid = body->mbo_gid;
461 uc->uc_o_fsuid = uc->uc_fsuid = body->mbo_fsuid;
462 uc->uc_o_fsgid = uc->uc_fsgid = body->mbo_fsgid;
463 uc->uc_suppgids[0] = body->mbo_suppgid;
464 uc->uc_suppgids[1] = -1;
466 if (!is_identity_get_disabled(mdt->mdt_identity_cache)) {
467 identity = mdt_identity_get(mdt->mdt_identity_cache,
469 if (IS_ERR(identity)) {
470 if (unlikely(PTR_ERR(identity) == -EREMCHG)) {
473 CDEBUG(D_SEC, "Deny access without identity: "
474 "uid %u\n", uc->uc_fsuid);
479 uc->uc_identity = identity;
481 mdt_squash_nodemap_id(uc, nodemap);
483 /* process root_squash here. */
484 mdt_root_squash(info, mdt_info_req(info)->rq_peer.nid);
486 /* remove fs privilege for non-root user. */
488 uc->uc_cap = body->mbo_capability & ~CFS_CAP_FS_MASK;
490 uc->uc_cap = body->mbo_capability;
491 uc->uc_valid = UCRED_OLD;
492 ucred_set_jobid(info, uc);
497 static int old_init_ucred_reint(struct mdt_thread_info *info)
499 struct lu_ucred *uc = mdt_ucred(info);
500 struct mdt_device *mdt = info->mti_mdt;
501 struct md_identity *identity = NULL;
502 struct lu_nodemap *nodemap =
503 info->mti_exp->exp_target_data.ted_nodemap;
508 uc->uc_fsuid = nodemap_map_id(nodemap, NODEMAP_UID,
509 NODEMAP_CLIENT_TO_FS, uc->uc_fsuid);
510 uc->uc_fsgid = nodemap_map_id(nodemap, NODEMAP_GID,
511 NODEMAP_CLIENT_TO_FS, uc->uc_fsgid);
513 uc->uc_valid = UCRED_INVALID;
514 uc->uc_o_uid = uc->uc_o_fsuid = uc->uc_uid = uc->uc_fsuid;
515 uc->uc_o_gid = uc->uc_o_fsgid = uc->uc_gid = uc->uc_fsgid;
518 if (!is_identity_get_disabled(mdt->mdt_identity_cache)) {
519 identity = mdt_identity_get(mdt->mdt_identity_cache,
521 if (IS_ERR(identity)) {
522 if (unlikely(PTR_ERR(identity) == -EREMCHG)) {
525 CDEBUG(D_SEC, "Deny access without identity: "
526 "uid %u\n", uc->uc_fsuid);
531 uc->uc_identity = identity;
533 /* process root_squash here. */
534 mdt_root_squash(info, mdt_info_req(info)->rq_peer.nid);
536 /* remove fs privilege for non-root user. */
538 uc->uc_cap &= ~CFS_CAP_FS_MASK;
539 uc->uc_valid = UCRED_OLD;
540 ucred_set_jobid(info, uc);
545 int mdt_init_ucred(struct mdt_thread_info *info, struct mdt_body *body)
547 struct ptlrpc_request *req = mdt_info_req(info);
548 struct lu_ucred *uc = mdt_ucred(info);
551 if ((uc->uc_valid == UCRED_OLD) || (uc->uc_valid == UCRED_NEW))
554 mdt_exit_ucred(info);
556 if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
557 return old_init_ucred(info, body);
559 return new_init_ucred(info, BODY_INIT, body);
562 int mdt_init_ucred_reint(struct mdt_thread_info *info)
564 struct ptlrpc_request *req = mdt_info_req(info);
565 struct lu_ucred *uc = mdt_ucred(info);
568 if ((uc->uc_valid == UCRED_OLD) || (uc->uc_valid == UCRED_NEW))
571 mdt_exit_ucred(info);
573 if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
574 return old_init_ucred_reint(info);
576 return new_init_ucred(info, REC_INIT, NULL);
579 /* copied from lov/lov_ea.c, just for debugging, will be removed later */
580 void mdt_dump_lmm(int level, const struct lov_mds_md *lmm, __u64 valid)
582 const struct lov_ost_data_v1 *lod;
586 if (likely(!cfs_cdebug_show(level, DEBUG_SUBSYSTEM)))
589 count = le16_to_cpu(((struct lov_user_md *)lmm)->lmm_stripe_count);
591 CDEBUG(level, "objid "DOSTID", magic 0x%08X, pattern %#X\n",
592 POSTID(&lmm->lmm_oi), le32_to_cpu(lmm->lmm_magic),
593 le32_to_cpu(lmm->lmm_pattern));
594 CDEBUG(level, "stripe_size=0x%x, stripe_count=0x%x\n",
595 le32_to_cpu(lmm->lmm_stripe_size), count);
597 /* If it's a directory or a released file, then there are
598 * no actual objects to print, so bail out. */
599 if (valid & OBD_MD_FLDIREA ||
600 le32_to_cpu(lmm->lmm_pattern) & LOV_PATTERN_F_RELEASED)
603 LASSERT(count <= LOV_MAX_STRIPE_COUNT);
604 for (i = 0, lod = lmm->lmm_objects; i < count; i++, lod++) {
607 ostid_le_to_cpu(&lod->l_ost_oi, &oi);
608 CDEBUG(level, "stripe %u idx %u subobj "DOSTID"\n",
609 i, le32_to_cpu(lod->l_ost_idx), POSTID(&oi));
613 void mdt_dump_lmv(unsigned int level, const union lmv_mds_md *lmv)
615 const struct lmv_mds_md_v1 *lmm1;
618 if (likely(!cfs_cdebug_show(level, DEBUG_SUBSYSTEM)))
621 lmm1 = &lmv->lmv_md_v1;
622 CDEBUG(level, "magic 0x%08X, master %#X stripe_count %#x\n",
623 le32_to_cpu(lmm1->lmv_magic),
624 le32_to_cpu(lmm1->lmv_master_mdt_index),
625 le32_to_cpu(lmm1->lmv_stripe_count));
627 if (le32_to_cpu(lmm1->lmv_magic) == LMV_MAGIC_STRIPE)
630 for (i = 0; i < le32_to_cpu(lmm1->lmv_stripe_count); i++) {
633 fid_le_to_cpu(&fid, &lmm1->lmv_stripe_fids[i]);
634 CDEBUG(level, "idx %u subobj "DFID"\n", i, PFID(&fid));
638 /* Shrink and/or grow reply buffers */
639 int mdt_fix_reply(struct mdt_thread_info *info)
641 struct req_capsule *pill = info->mti_pill;
642 struct mdt_body *body;
643 int md_size, md_packed = 0;
648 body = req_capsule_server_get(pill, &RMF_MDT_BODY);
649 LASSERT(body != NULL);
651 if (body->mbo_valid & (OBD_MD_FLDIREA | OBD_MD_FLEASIZE |
653 md_size = body->mbo_eadatasize;
657 acl_size = body->mbo_aclsize;
659 /* this replay - not send info to client */
660 if (info->mti_spec.no_create) {
665 CDEBUG(D_INFO, "Shrink to md_size = %d cookie/acl_size = %d"
666 " MDSCAPA = %llx, OSSCAPA = %llx\n",
668 (unsigned long long)(body->mbo_valid & OBD_MD_FLMDSCAPA),
669 (unsigned long long)(body->mbo_valid & OBD_MD_FLOSSCAPA));
673 &RMF_ACL, or &RMF_LOGCOOKIES
674 (optional) &RMF_CAPA1,
675 (optional) &RMF_CAPA2,
676 (optional) something else
679 /* MDT_MD buffer may be bigger than packed value, let's shrink all
680 * buffers before growing it */
681 if (info->mti_big_lmm_used) {
682 /* big_lmm buffer may be used even without packing the result
683 * into reply, just for internal server needs */
684 if (req_capsule_has_field(pill, &RMF_MDT_MD, RCL_SERVER))
685 md_packed = req_capsule_get_size(pill, &RMF_MDT_MD,
688 /* free big lmm if md_size is not needed */
689 if (md_size == 0 || md_packed == 0) {
690 info->mti_big_lmm_used = 0;
692 /* buffer must be allocated separately */
693 LASSERT(info->mti_attr.ma_lmm !=
694 req_capsule_server_get(pill, &RMF_MDT_MD));
695 req_capsule_shrink(pill, &RMF_MDT_MD, 0, RCL_SERVER);
697 } else if (req_capsule_has_field(pill, &RMF_MDT_MD, RCL_SERVER)) {
698 req_capsule_shrink(pill, &RMF_MDT_MD, md_size, RCL_SERVER);
701 if (req_capsule_has_field(pill, &RMF_ACL, RCL_SERVER))
702 req_capsule_shrink(pill, &RMF_ACL, acl_size, RCL_SERVER);
703 else if (req_capsule_has_field(pill, &RMF_LOGCOOKIES, RCL_SERVER))
704 req_capsule_shrink(pill, &RMF_LOGCOOKIES,
705 acl_size, RCL_SERVER);
707 if (req_capsule_has_field(pill, &RMF_CAPA1, RCL_SERVER) &&
708 !(body->mbo_valid & OBD_MD_FLMDSCAPA))
709 req_capsule_shrink(pill, &RMF_CAPA1, 0, RCL_SERVER);
711 if (req_capsule_has_field(pill, &RMF_CAPA2, RCL_SERVER) &&
712 !(body->mbo_valid & OBD_MD_FLOSSCAPA))
713 req_capsule_shrink(pill, &RMF_CAPA2, 0, RCL_SERVER);
716 * Some more field should be shrinked if needed.
717 * This should be done by those who added fields to reply message.
720 /* Grow MD buffer if needed finally */
721 if (info->mti_big_lmm_used) {
724 LASSERT(md_size > md_packed);
725 CDEBUG(D_INFO, "Enlarge reply buffer, need extra %d bytes\n",
726 md_size - md_packed);
727 rc = req_capsule_server_grow(pill, &RMF_MDT_MD, md_size);
729 /* we can't answer with proper LOV EA, drop flags,
730 * the rc is also returned so this request is
731 * considered as failed */
732 body->mbo_valid &= ~(OBD_MD_FLDIREA | OBD_MD_FLEASIZE);
733 /* don't return transno along with error */
734 lustre_msg_set_transno(pill->rc_req->rq_repmsg, 0);
736 /* now we need to pack right LOV/LMV EA */
737 lmm = req_capsule_server_get(pill, &RMF_MDT_MD);
738 if (info->mti_attr.ma_valid & MA_LOV) {
739 LASSERT(req_capsule_get_size(pill, &RMF_MDT_MD,
741 info->mti_attr.ma_lmm_size);
742 memcpy(lmm, info->mti_attr.ma_lmm,
743 info->mti_attr.ma_lmm_size);
744 } else if (info->mti_attr.ma_valid & MA_LMV) {
745 LASSERT(req_capsule_get_size(pill, &RMF_MDT_MD,
747 info->mti_attr.ma_lmv_size);
748 memcpy(lmm, info->mti_attr.ma_lmv,
749 info->mti_attr.ma_lmv_size);
752 /* update mdt_max_mdsize so clients will be aware about that */
753 if (info->mti_mdt->mdt_max_mdsize < info->mti_attr.ma_lmm_size)
754 info->mti_mdt->mdt_max_mdsize =
755 info->mti_attr.ma_lmm_size;
756 info->mti_big_lmm_used = 0;
762 /* if object is dying, pack the lov/llog data,
763 * parameter info->mti_attr should be valid at this point! */
764 int mdt_handle_last_unlink(struct mdt_thread_info *info, struct mdt_object *mo,
765 const struct md_attr *ma)
767 struct mdt_body *repbody;
768 const struct lu_attr *la = &ma->ma_attr;
772 repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
773 LASSERT(repbody != NULL);
775 if (ma->ma_valid & MA_INODE)
776 mdt_pack_attr2body(info, repbody, la, mdt_object_fid(mo));
778 if (ma->ma_valid & MA_LOV) {
779 CERROR("No need in LOV EA upon unlink\n");
782 repbody->mbo_eadatasize = 0;
784 if (info->mti_mdt->mdt_lut.lut_oss_capa &&
785 exp_connect_flags(info->mti_exp) & OBD_CONNECT_OSS_CAPA &&
786 repbody->mbo_valid & OBD_MD_FLEASIZE) {
787 struct lustre_capa *capa;
789 capa = req_capsule_server_get(info->mti_pill, &RMF_CAPA2);
791 capa->lc_opc = CAPA_OPC_OSS_DESTROY;
792 rc = mo_capa_get(info->mti_env, mdt_object_child(mo), capa, 0);
796 repbody->mbo_valid |= OBD_MD_FLOSSCAPA;
802 static __u64 mdt_attr_valid_xlate(__u64 in, struct mdt_reint_record *rr,
808 if (in & MDS_ATTR_MODE)
810 if (in & MDS_ATTR_UID)
812 if (in & MDS_ATTR_GID)
814 if (in & MDS_ATTR_SIZE)
816 if (in & MDS_ATTR_BLOCKS)
818 if (in & MDS_ATTR_ATIME_SET)
820 if (in & MDS_ATTR_CTIME_SET)
822 if (in & MDS_ATTR_MTIME_SET)
824 if (in & MDS_ATTR_ATTR_FLAG)
826 if (in & MDS_ATTR_KILL_SUID)
828 if (in & MDS_ATTR_KILL_SGID)
831 if (in & MDS_ATTR_FROM_OPEN)
832 rr->rr_flags |= MRF_OPEN_TRUNC;
833 if (in & MDS_OPEN_OWNEROVERRIDE)
834 ma->ma_attr_flags |= MDS_OWNEROVERRIDE;
835 if (in & MDS_ATTR_FORCE)
836 ma->ma_attr_flags |= MDS_PERM_BYPASS;
838 in &= ~(MDS_ATTR_MODE | MDS_ATTR_UID | MDS_ATTR_GID |
839 MDS_ATTR_ATIME | MDS_ATTR_MTIME | MDS_ATTR_CTIME |
840 MDS_ATTR_ATIME_SET | MDS_ATTR_CTIME_SET | MDS_ATTR_MTIME_SET |
841 MDS_ATTR_SIZE | MDS_ATTR_BLOCKS | MDS_ATTR_ATTR_FLAG |
842 MDS_ATTR_FORCE | MDS_ATTR_KILL_SUID | MDS_ATTR_KILL_SGID |
843 MDS_ATTR_FROM_OPEN | MDS_OPEN_OWNEROVERRIDE);
845 CERROR("Unknown attr bits: "LPX64"\n", in);
849 void mdt_set_capainfo(struct mdt_thread_info *info, int offset,
850 const struct lu_fid *fid, struct lustre_capa *capa)
852 struct lu_capainfo *lci;
854 LASSERT(offset >= 0 && offset < LU_CAPAINFO_MAX);
855 if (!info->mti_mdt->mdt_lut.lut_mds_capa ||
856 !(exp_connect_flags(info->mti_exp) & OBD_CONNECT_MDS_CAPA))
859 lci = lu_capainfo_get(info->mti_env);
861 lci->lci_fid[offset] = *fid;
862 lci->lci_capa[offset] = capa;
866 void mdt_dump_capainfo(struct mdt_thread_info *info)
868 struct lu_capainfo *lci = lu_capainfo_get(info->mti_env);
874 for (i = 0; i < LU_CAPAINFO_MAX; i++) {
875 if (lci->lci_capa[i] == NULL) {
876 CERROR("no capa for index %d "DFID"\n",
877 i, PFID(&lci->lci_fid[i]));
880 if (lci->lci_capa[i] == BYPASS_CAPA) {
881 CERROR("bypass for index %d "DFID"\n",
882 i, PFID(&lci->lci_fid[i]));
885 DEBUG_CAPA(D_ERROR, lci->lci_capa[i], "index %d", i);
888 #endif /* DEBUG_CAPA */
892 int mdt_name_unpack(struct req_capsule *pill,
893 const struct req_msg_field *field,
895 enum mdt_name_flags flags)
897 ln->ln_name = req_capsule_client_get(pill, field);
898 ln->ln_namelen = req_capsule_get_size(pill, field, RCL_CLIENT) - 1;
900 if (!lu_name_is_valid(ln)) {
907 if ((flags & MNF_FIX_ANON) &&
908 ln->ln_namelen == 1 && ln->ln_name[0] == '/') {
909 /* Newer (3.x) kernels use a name of "/" for the
910 * "anonymous" disconnected dentries from NFS
911 * filehandle conversion. See d_obtain_alias(). */
919 static int mdt_setattr_unpack_rec(struct mdt_thread_info *info)
921 struct lu_ucred *uc = mdt_ucred(info);
922 struct md_attr *ma = &info->mti_attr;
923 struct lu_attr *la = &ma->ma_attr;
924 struct req_capsule *pill = info->mti_pill;
925 struct mdt_reint_record *rr = &info->mti_rr;
926 struct mdt_rec_setattr *rec;
927 struct lu_nodemap *nodemap =
928 info->mti_exp->exp_target_data.ted_nodemap;
931 CLASSERT(sizeof(struct mdt_rec_setattr)== sizeof(struct mdt_rec_reint));
932 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
936 /* This prior initialization is needed for old_init_ucred_reint() */
937 uc->uc_fsuid = rec->sa_fsuid;
938 uc->uc_fsgid = rec->sa_fsgid;
939 uc->uc_cap = rec->sa_cap;
940 uc->uc_suppgids[0] = rec->sa_suppgid;
941 uc->uc_suppgids[1] = -1;
943 rr->rr_fid1 = &rec->sa_fid;
944 la->la_valid = mdt_attr_valid_xlate(rec->sa_valid, rr, ma);
945 /* If MDS_ATTR_xTIME is set without MDS_ATTR_xTIME_SET and
946 * the client does not have OBD_CONNECT_FULL20, convert it
947 * to LA_xTIME. LU-3036 */
948 if (!(exp_connect_flags(info->mti_exp) & OBD_CONNECT_FULL20)) {
949 if (!(rec->sa_valid & MDS_ATTR_ATIME_SET) &&
950 (rec->sa_valid & MDS_ATTR_ATIME))
951 la->la_valid |= LA_ATIME;
952 if (!(rec->sa_valid & MDS_ATTR_MTIME_SET) &&
953 (rec->sa_valid & MDS_ATTR_MTIME))
954 la->la_valid |= LA_MTIME;
955 if (!(rec->sa_valid & MDS_ATTR_CTIME_SET) &&
956 (rec->sa_valid & MDS_ATTR_CTIME))
957 la->la_valid |= LA_CTIME;
959 la->la_mode = rec->sa_mode;
960 la->la_flags = rec->sa_attr_flags;
961 la->la_uid = nodemap_map_id(nodemap, NODEMAP_UID,
962 NODEMAP_CLIENT_TO_FS, rec->sa_uid);
963 la->la_gid = nodemap_map_id(nodemap, NODEMAP_GID,
964 NODEMAP_CLIENT_TO_FS, rec->sa_gid);
965 la->la_size = rec->sa_size;
966 la->la_blocks = rec->sa_blocks;
967 la->la_ctime = rec->sa_ctime;
968 la->la_atime = rec->sa_atime;
969 la->la_mtime = rec->sa_mtime;
970 ma->ma_valid = MA_INODE;
972 if (rec->sa_bias & MDS_DATA_MODIFIED)
973 ma->ma_attr_flags |= MDS_DATA_MODIFIED;
975 ma->ma_attr_flags &= ~MDS_DATA_MODIFIED;
977 if (rec->sa_bias & MDS_HSM_RELEASE)
978 ma->ma_attr_flags |= MDS_HSM_RELEASE;
980 ma->ma_attr_flags &= ~MDS_HSM_RELEASE;
982 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
983 mdt_set_capainfo(info, 0, rr->rr_fid1,
984 req_capsule_client_get(pill, &RMF_CAPA1));
989 static int mdt_ioepoch_unpack(struct mdt_thread_info *info)
991 struct req_capsule *pill = info->mti_pill;
994 if (req_capsule_get_size(pill, &RMF_MDT_EPOCH, RCL_CLIENT))
996 req_capsule_client_get(pill, &RMF_MDT_EPOCH);
998 info->mti_ioepoch = NULL;
999 RETURN(info->mti_ioepoch == NULL ? -EFAULT : 0);
1002 static inline int mdt_dlmreq_unpack(struct mdt_thread_info *info) {
1003 struct req_capsule *pill = info->mti_pill;
1005 if (req_capsule_get_size(pill, &RMF_DLM_REQ, RCL_CLIENT)) {
1006 info->mti_dlm_req = req_capsule_client_get(pill, &RMF_DLM_REQ);
1007 if (info->mti_dlm_req == NULL)
1014 static int mdt_setattr_unpack(struct mdt_thread_info *info)
1016 struct mdt_reint_record *rr = &info->mti_rr;
1017 struct md_attr *ma = &info->mti_attr;
1018 struct req_capsule *pill = info->mti_pill;
1022 rc = mdt_setattr_unpack_rec(info);
1026 /* Epoch may be absent */
1027 mdt_ioepoch_unpack(info);
1029 if (req_capsule_field_present(pill, &RMF_EADATA, RCL_CLIENT)) {
1030 rr->rr_eadata = req_capsule_client_get(pill, &RMF_EADATA);
1031 rr->rr_eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
1033 if (rr->rr_eadatalen > 0) {
1034 const struct lmv_user_md *lum;
1036 lum = rr->rr_eadata;
1037 /* Sigh ma_valid(from req) does not indicate whether
1038 * it will set LOV/LMV EA, so we have to check magic */
1039 if (le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC) {
1040 ma->ma_valid |= MA_LMV;
1041 ma->ma_lmv = (void *)rr->rr_eadata;
1042 ma->ma_lmv_size = rr->rr_eadatalen;
1044 ma->ma_valid |= MA_LOV;
1045 ma->ma_lmm = (void *)rr->rr_eadata;
1046 ma->ma_lmm_size = rr->rr_eadatalen;
1051 rc = mdt_dlmreq_unpack(info);
1055 static int mdt_hsm_release_unpack(struct mdt_thread_info *info)
1057 struct md_attr *ma = &info->mti_attr;
1058 struct req_capsule *pill = info->mti_pill;
1061 if (!(ma->ma_attr_flags & MDS_HSM_RELEASE))
1064 req_capsule_extend(pill, &RQF_MDS_RELEASE_CLOSE);
1066 if (!(req_capsule_has_field(pill, &RMF_CLOSE_DATA, RCL_CLIENT) &&
1067 req_capsule_field_present(pill, &RMF_CLOSE_DATA, RCL_CLIENT)))
1073 int mdt_close_unpack(struct mdt_thread_info *info)
1078 rc = mdt_ioepoch_unpack(info);
1082 rc = mdt_setattr_unpack_rec(info);
1086 rc = mdt_hsm_release_unpack(info);
1090 RETURN(mdt_init_ucred_reint(info));
1093 static int mdt_create_unpack(struct mdt_thread_info *info)
1095 struct lu_ucred *uc = mdt_ucred(info);
1096 struct mdt_rec_create *rec;
1097 struct lu_attr *attr = &info->mti_attr.ma_attr;
1098 struct mdt_reint_record *rr = &info->mti_rr;
1099 struct req_capsule *pill = info->mti_pill;
1100 struct md_op_spec *sp = &info->mti_spec;
1104 CLASSERT(sizeof(struct mdt_rec_create) == sizeof(struct mdt_rec_reint));
1105 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1109 /* This prior initialization is needed for old_init_ucred_reint() */
1110 uc->uc_fsuid = rec->cr_fsuid;
1111 uc->uc_fsgid = rec->cr_fsgid;
1112 uc->uc_cap = rec->cr_cap;
1113 uc->uc_suppgids[0] = rec->cr_suppgid1;
1114 uc->uc_suppgids[1] = -1;
1115 uc->uc_umask = rec->cr_umask;
1117 rr->rr_fid1 = &rec->cr_fid1;
1118 rr->rr_fid2 = &rec->cr_fid2;
1119 attr->la_mode = rec->cr_mode;
1120 attr->la_rdev = rec->cr_rdev;
1121 attr->la_uid = rec->cr_fsuid;
1122 attr->la_gid = rec->cr_fsgid;
1123 attr->la_ctime = rec->cr_time;
1124 attr->la_mtime = rec->cr_time;
1125 attr->la_atime = rec->cr_time;
1126 attr->la_valid = LA_MODE | LA_RDEV | LA_UID | LA_GID | LA_TYPE |
1127 LA_CTIME | LA_MTIME | LA_ATIME;
1128 memset(&sp->u, 0, sizeof(sp->u));
1129 sp->sp_cr_flags = get_mrc_cr_flags(rec);
1131 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1132 mdt_set_capainfo(info, 0, rr->rr_fid1,
1133 req_capsule_client_get(pill, &RMF_CAPA1));
1134 mdt_set_capainfo(info, 1, rr->rr_fid2, BYPASS_CAPA);
1136 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1140 if (S_ISLNK(attr->la_mode)) {
1141 const char *tgt = NULL;
1143 req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_SYM);
1144 if (req_capsule_get_size(pill, &RMF_SYMTGT, RCL_CLIENT)) {
1145 tgt = req_capsule_client_get(pill, &RMF_SYMTGT);
1146 sp->u.sp_symname = tgt;
1151 req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_RMT_ACL);
1152 if (S_ISDIR(attr->la_mode) &&
1153 req_capsule_get_size(pill, &RMF_EADATA, RCL_CLIENT) > 0) {
1154 sp->u.sp_ea.eadata =
1155 req_capsule_client_get(pill, &RMF_EADATA);
1156 sp->u.sp_ea.eadatalen =
1157 req_capsule_get_size(pill, &RMF_EADATA,
1159 sp->sp_cr_flags |= MDS_OPEN_HAS_EA;
1163 rc = mdt_dlmreq_unpack(info);
1167 static int mdt_link_unpack(struct mdt_thread_info *info)
1169 struct lu_ucred *uc = mdt_ucred(info);
1170 struct mdt_rec_link *rec;
1171 struct lu_attr *attr = &info->mti_attr.ma_attr;
1172 struct mdt_reint_record *rr = &info->mti_rr;
1173 struct req_capsule *pill = info->mti_pill;
1177 CLASSERT(sizeof(struct mdt_rec_link) == sizeof(struct mdt_rec_reint));
1178 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1182 /* This prior initialization is needed for old_init_ucred_reint() */
1183 uc->uc_fsuid = rec->lk_fsuid;
1184 uc->uc_fsgid = rec->lk_fsgid;
1185 uc->uc_cap = rec->lk_cap;
1186 uc->uc_suppgids[0] = rec->lk_suppgid1;
1187 uc->uc_suppgids[1] = rec->lk_suppgid2;
1189 attr->la_uid = rec->lk_fsuid;
1190 attr->la_gid = rec->lk_fsgid;
1191 rr->rr_fid1 = &rec->lk_fid1;
1192 rr->rr_fid2 = &rec->lk_fid2;
1193 attr->la_ctime = rec->lk_time;
1194 attr->la_mtime = rec->lk_time;
1195 attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME;
1197 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1198 mdt_set_capainfo(info, 0, rr->rr_fid1,
1199 req_capsule_client_get(pill, &RMF_CAPA1));
1200 if (req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT))
1201 mdt_set_capainfo(info, 1, rr->rr_fid2,
1202 req_capsule_client_get(pill, &RMF_CAPA2));
1204 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1208 rc = mdt_dlmreq_unpack(info);
1213 static int mdt_unlink_unpack(struct mdt_thread_info *info)
1215 struct lu_ucred *uc = mdt_ucred(info);
1216 struct mdt_rec_unlink *rec;
1217 struct md_attr *ma = &info->mti_attr;
1218 struct lu_attr *attr = &info->mti_attr.ma_attr;
1219 struct mdt_reint_record *rr = &info->mti_rr;
1220 struct req_capsule *pill = info->mti_pill;
1224 CLASSERT(sizeof(struct mdt_rec_unlink) == sizeof(struct mdt_rec_reint));
1225 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1229 /* This prior initialization is needed for old_init_ucred_reint() */
1230 uc->uc_fsuid = rec->ul_fsuid;
1231 uc->uc_fsgid = rec->ul_fsgid;
1232 uc->uc_cap = rec->ul_cap;
1233 uc->uc_suppgids[0] = rec->ul_suppgid1;
1234 uc->uc_suppgids[1] = -1;
1236 attr->la_uid = rec->ul_fsuid;
1237 attr->la_gid = rec->ul_fsgid;
1238 rr->rr_fid1 = &rec->ul_fid1;
1239 rr->rr_fid2 = &rec->ul_fid2;
1240 attr->la_ctime = rec->ul_time;
1241 attr->la_mtime = rec->ul_time;
1242 attr->la_mode = rec->ul_mode;
1243 attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME | LA_MODE;
1245 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1246 mdt_set_capainfo(info, 0, rr->rr_fid1,
1247 req_capsule_client_get(pill, &RMF_CAPA1));
1249 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1253 if (rec->ul_bias & MDS_VTX_BYPASS)
1254 ma->ma_attr_flags |= MDS_VTX_BYPASS;
1256 ma->ma_attr_flags &= ~MDS_VTX_BYPASS;
1258 info->mti_spec.no_create = !!req_is_replay(mdt_info_req(info));
1260 rc = mdt_dlmreq_unpack(info);
1264 static int mdt_rmentry_unpack(struct mdt_thread_info *info)
1266 info->mti_spec.sp_rm_entry = 1;
1267 return mdt_unlink_unpack(info);
1270 static int mdt_rename_unpack(struct mdt_thread_info *info)
1272 struct lu_ucred *uc = mdt_ucred(info);
1273 struct mdt_rec_rename *rec;
1274 struct md_attr *ma = &info->mti_attr;
1275 struct lu_attr *attr = &info->mti_attr.ma_attr;
1276 struct mdt_reint_record *rr = &info->mti_rr;
1277 struct req_capsule *pill = info->mti_pill;
1281 CLASSERT(sizeof(struct mdt_rec_rename) == sizeof(struct mdt_rec_reint));
1282 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1286 /* This prior initialization is needed for old_init_ucred_reint() */
1287 uc->uc_fsuid = rec->rn_fsuid;
1288 uc->uc_fsgid = rec->rn_fsgid;
1289 uc->uc_cap = rec->rn_cap;
1290 uc->uc_suppgids[0] = rec->rn_suppgid1;
1291 uc->uc_suppgids[1] = rec->rn_suppgid2;
1293 attr->la_uid = rec->rn_fsuid;
1294 attr->la_gid = rec->rn_fsgid;
1295 rr->rr_fid1 = &rec->rn_fid1;
1296 rr->rr_fid2 = &rec->rn_fid2;
1297 attr->la_ctime = rec->rn_time;
1298 attr->la_mtime = rec->rn_time;
1299 /* rename_tgt contains the mode already */
1300 attr->la_mode = rec->rn_mode;
1301 attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME | LA_MODE;
1303 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1304 mdt_set_capainfo(info, 0, rr->rr_fid1,
1305 req_capsule_client_get(pill, &RMF_CAPA1));
1306 if (req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT))
1307 mdt_set_capainfo(info, 1, rr->rr_fid2,
1308 req_capsule_client_get(pill, &RMF_CAPA2));
1310 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1314 rc = mdt_name_unpack(pill, &RMF_SYMTGT, &rr->rr_tgt_name, 0);
1318 if (rec->rn_bias & MDS_VTX_BYPASS)
1319 ma->ma_attr_flags |= MDS_VTX_BYPASS;
1321 ma->ma_attr_flags &= ~MDS_VTX_BYPASS;
1323 info->mti_spec.no_create = !!req_is_replay(mdt_info_req(info));
1326 rc = mdt_dlmreq_unpack(info);
1332 * please see comment above LOV_MAGIC_V1_DEF
1334 static void mdt_fix_lov_magic(struct mdt_thread_info *info)
1336 struct mdt_reint_record *rr = &info->mti_rr;
1337 struct lov_user_md_v1 *v1;
1339 v1 = (void *)rr->rr_eadata;
1342 if (unlikely(req_is_replay(mdt_info_req(info)))) {
1343 if (v1->lmm_magic == LOV_USER_MAGIC_V1) {
1344 v1->lmm_magic = LOV_MAGIC_V1_DEF;
1345 } else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V1)) {
1346 v1->lmm_magic = __swab32(LOV_MAGIC_V1_DEF);
1347 } else if (v1->lmm_magic == LOV_USER_MAGIC_V3) {
1348 v1->lmm_magic = LOV_MAGIC_V3_DEF;
1349 } else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V3)) {
1350 v1->lmm_magic = __swab32(LOV_MAGIC_V3_DEF);
1355 static int mdt_open_unpack(struct mdt_thread_info *info)
1357 struct lu_ucred *uc = mdt_ucred(info);
1358 struct mdt_rec_create *rec;
1359 struct lu_attr *attr = &info->mti_attr.ma_attr;
1360 struct req_capsule *pill = info->mti_pill;
1361 struct mdt_reint_record *rr = &info->mti_rr;
1362 struct ptlrpc_request *req = mdt_info_req(info);
1363 struct md_op_spec *sp = &info->mti_spec;
1366 CLASSERT(sizeof(struct mdt_rec_create) == sizeof(struct mdt_rec_reint));
1367 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1371 /* This prior initialization is needed for old_init_ucred_reint() */
1372 uc->uc_fsuid = rec->cr_fsuid;
1373 uc->uc_fsgid = rec->cr_fsgid;
1374 uc->uc_cap = rec->cr_cap;
1375 uc->uc_suppgids[0] = rec->cr_suppgid1;
1376 uc->uc_suppgids[1] = rec->cr_suppgid2;
1377 uc->uc_umask = rec->cr_umask;
1379 rr->rr_fid1 = &rec->cr_fid1;
1380 rr->rr_fid2 = &rec->cr_fid2;
1381 rr->rr_handle = &rec->cr_old_handle;
1382 attr->la_mode = rec->cr_mode;
1383 attr->la_rdev = rec->cr_rdev;
1384 attr->la_uid = rec->cr_fsuid;
1385 attr->la_gid = rec->cr_fsgid;
1386 attr->la_ctime = rec->cr_time;
1387 attr->la_mtime = rec->cr_time;
1388 attr->la_atime = rec->cr_time;
1389 attr->la_valid = LA_MODE | LA_RDEV | LA_UID | LA_GID |
1390 LA_CTIME | LA_MTIME | LA_ATIME;
1391 memset(&info->mti_spec.u, 0, sizeof(info->mti_spec.u));
1392 info->mti_spec.sp_cr_flags = get_mrc_cr_flags(rec);
1393 /* Do not trigger ASSERTION if client miss to set such flags. */
1394 if (unlikely(info->mti_spec.sp_cr_flags == 0))
1396 info->mti_replayepoch = rec->cr_ioepoch;
1398 info->mti_cross_ref = !!(rec->cr_bias & MDS_CROSS_REF);
1400 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1401 mdt_set_capainfo(info, 0, rr->rr_fid1,
1402 req_capsule_client_get(pill, &RMF_CAPA1));
1403 if (req_is_replay(req) &&
1404 req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT)) {
1406 mdt_set_capainfo(info, 1, rr->rr_fid2,
1407 req_capsule_client_get(pill, &RMF_CAPA2));
1410 * FIXME: capa in replay open request might have expired,
1411 * bypass capa check. Security hole?
1413 mdt_set_capainfo(info, 0, rr->rr_fid1, BYPASS_CAPA);
1414 mdt_set_capainfo(info, 1, rr->rr_fid2, BYPASS_CAPA);
1418 mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, MNF_FIX_ANON);
1420 if (req_capsule_field_present(pill, &RMF_EADATA, RCL_CLIENT)) {
1421 rr->rr_eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
1423 if (rr->rr_eadatalen > 0) {
1424 rr->rr_eadata = req_capsule_client_get(pill,
1426 sp->u.sp_ea.eadatalen = rr->rr_eadatalen;
1427 sp->u.sp_ea.eadata = rr->rr_eadata;
1428 sp->no_create = !!req_is_replay(req);
1429 mdt_fix_lov_magic(info);
1433 * Client default md_size may be 0 right after client start,
1434 * until all osc are connected, set here just some reasonable
1435 * value to prevent misbehavior.
1437 if (rr->rr_eadatalen == 0 &&
1438 !(info->mti_spec.sp_cr_flags & MDS_OPEN_DELAY_CREATE))
1439 rr->rr_eadatalen = MIN_MD_SIZE;
1445 static int mdt_setxattr_unpack(struct mdt_thread_info *info)
1447 struct mdt_reint_record *rr = &info->mti_rr;
1448 struct lu_ucred *uc = mdt_ucred(info);
1449 struct lu_attr *attr = &info->mti_attr.ma_attr;
1450 struct req_capsule *pill = info->mti_pill;
1451 struct mdt_rec_setxattr *rec;
1456 CLASSERT(sizeof(struct mdt_rec_setxattr) ==
1457 sizeof(struct mdt_rec_reint));
1459 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1463 /* This prior initialization is needed for old_init_ucred_reint() */
1464 uc->uc_fsuid = rec->sx_fsuid;
1465 uc->uc_fsgid = rec->sx_fsgid;
1466 uc->uc_cap = rec->sx_cap;
1467 uc->uc_suppgids[0] = rec->sx_suppgid1;
1468 uc->uc_suppgids[1] = -1;
1470 rr->rr_opcode = rec->sx_opcode;
1471 rr->rr_fid1 = &rec->sx_fid;
1472 attr->la_valid = rec->sx_valid;
1473 attr->la_ctime = rec->sx_time;
1474 attr->la_size = rec->sx_size;
1475 attr->la_flags = rec->sx_flags;
1477 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1478 mdt_set_capainfo(info, 0, rr->rr_fid1,
1479 req_capsule_client_get(pill, &RMF_CAPA1));
1481 mdt_set_capainfo(info, 0, rr->rr_fid1, BYPASS_CAPA);
1483 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1487 if (req_capsule_field_present(pill, &RMF_EADATA, RCL_CLIENT)) {
1488 rr->rr_eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
1490 if (rr->rr_eadatalen > 0) {
1491 rr->rr_eadata = req_capsule_client_get(pill,
1493 if (rr->rr_eadata == NULL)
1496 rr->rr_eadata = NULL;
1498 } else if (!(attr->la_valid & OBD_MD_FLXATTRRM)) {
1499 CDEBUG(D_INFO, "no xattr data supplied\n");
1503 if (mdt_dlmreq_unpack(info) < 0)
1510 typedef int (*reint_unpacker)(struct mdt_thread_info *info);
1512 static reint_unpacker mdt_reint_unpackers[REINT_MAX] = {
1513 [REINT_SETATTR] = mdt_setattr_unpack,
1514 [REINT_CREATE] = mdt_create_unpack,
1515 [REINT_LINK] = mdt_link_unpack,
1516 [REINT_UNLINK] = mdt_unlink_unpack,
1517 [REINT_RENAME] = mdt_rename_unpack,
1518 [REINT_OPEN] = mdt_open_unpack,
1519 [REINT_SETXATTR] = mdt_setxattr_unpack,
1520 [REINT_RMENTRY] = mdt_rmentry_unpack,
1521 [REINT_MIGRATE] = mdt_rename_unpack,
1524 int mdt_reint_unpack(struct mdt_thread_info *info, __u32 op)
1529 memset(&info->mti_rr, 0, sizeof(info->mti_rr));
1530 if (op < REINT_MAX && mdt_reint_unpackers[op] != NULL) {
1531 info->mti_rr.rr_opcode = op;
1532 rc = mdt_reint_unpackers[op](info);
1534 CERROR("Unexpected opcode %d\n", op);