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/lib-lnet.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,
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);
100 LASSERT(ucred != NULL);
101 if (!info->mti_mdt->mdt_squash_uid || ucred->uc_fsuid)
104 if (match_nosquash_list(&info->mti_mdt->mdt_squash_sem,
105 &info->mti_mdt->mdt_nosquash_nids,
107 CDEBUG(D_OTHER, "%s is in nosquash_nids list\n",
108 libcfs_nid2str(peernid));
112 CDEBUG(D_OTHER, "squash req from %s, (%d:%d/%x)=>(%d:%d/%x)\n",
113 libcfs_nid2str(peernid),
114 ucred->uc_fsuid, ucred->uc_fsgid, ucred->uc_cap,
115 info->mti_mdt->mdt_squash_uid, info->mti_mdt->mdt_squash_gid,
118 ucred->uc_fsuid = info->mti_mdt->mdt_squash_uid;
119 ucred->uc_fsgid = info->mti_mdt->mdt_squash_gid;
121 ucred->uc_suppgids[0] = -1;
122 ucred->uc_suppgids[1] = -1;
127 static int new_init_ucred(struct mdt_thread_info *info, ucred_init_type_t type,
130 struct ptlrpc_request *req = mdt_info_req(info);
131 struct mdt_device *mdt = info->mti_mdt;
132 struct ptlrpc_user_desc *pud = req->rq_user_desc;
133 struct lu_ucred *ucred = mdt_ucred(info);
134 lnet_nid_t peernid = req->rq_peer.nid;
136 __u32 remote = exp_connect_rmtclient(info->mti_exp);
143 LASSERT(req->rq_auth_gss);
144 LASSERT(!req->rq_auth_usr_mdt);
145 LASSERT(req->rq_user_desc);
146 LASSERT(ucred != NULL);
148 ucred->uc_valid = UCRED_INVALID;
150 ucred->uc_o_uid = pud->pud_uid;
151 ucred->uc_o_gid = pud->pud_gid;
152 ucred->uc_o_fsuid = pud->pud_fsuid;
153 ucred->uc_o_fsgid = pud->pud_fsgid;
155 if (type == BODY_INIT) {
156 struct mdt_body *body = (struct mdt_body *)buf;
158 ucred->uc_suppgids[0] = body->suppgid;
159 ucred->uc_suppgids[1] = -1;
162 /* sanity check: we expect the uid which client claimed is true */
164 if (req->rq_auth_mapped_uid == INVALID_UID) {
165 CDEBUG(D_SEC, "remote user not mapped, deny access!\n");
169 if (ptlrpc_user_desc_do_idmap(req, pud))
172 if (req->rq_auth_mapped_uid != pud->pud_uid) {
173 CDEBUG(D_SEC, "remote client %s: auth/mapped uid %u/%u "
174 "while client claims %u:%u/%u:%u\n",
175 libcfs_nid2str(peernid), req->rq_auth_uid,
176 req->rq_auth_mapped_uid,
177 pud->pud_uid, pud->pud_gid,
178 pud->pud_fsuid, pud->pud_fsgid);
182 if (req->rq_auth_uid != pud->pud_uid) {
183 CDEBUG(D_SEC, "local client %s: auth uid %u "
184 "while client claims %u:%u/%u:%u\n",
185 libcfs_nid2str(peernid), req->rq_auth_uid,
186 pud->pud_uid, pud->pud_gid,
187 pud->pud_fsuid, pud->pud_fsgid);
192 if (is_identity_get_disabled(mdt->mdt_identity_cache)) {
194 CDEBUG(D_SEC, "remote client must run with identity_get "
198 ucred->uc_identity = NULL;
199 perm = CFS_SETUID_PERM | CFS_SETGID_PERM |
203 struct md_identity *identity;
205 identity = mdt_identity_get(mdt->mdt_identity_cache,
207 if (IS_ERR(identity)) {
208 if (unlikely(PTR_ERR(identity) == -EREMCHG &&
210 ucred->uc_identity = NULL;
211 perm = CFS_SETUID_PERM | CFS_SETGID_PERM |
214 CDEBUG(D_SEC, "Deny access without identity: uid %u\n",
219 ucred->uc_identity = identity;
220 perm = mdt_identity_get_perm(ucred->uc_identity,
225 /* find out the setuid/setgid attempt */
226 setuid = (pud->pud_uid != pud->pud_fsuid);
227 setgid = ((pud->pud_gid != pud->pud_fsgid) ||
228 (ucred->uc_identity &&
229 (pud->pud_gid != ucred->uc_identity->mi_gid)));
231 /* check permission of setuid */
232 if (setuid && !(perm & CFS_SETUID_PERM)) {
233 CDEBUG(D_SEC, "mdt blocked setuid attempt (%u -> %u) from %s\n",
234 pud->pud_uid, pud->pud_fsuid, libcfs_nid2str(peernid));
235 GOTO(out, rc = -EACCES);
238 /* check permission of setgid */
239 if (setgid && !(perm & CFS_SETGID_PERM)) {
240 CDEBUG(D_SEC, "mdt blocked setgid attempt (%u:%u/%u:%u -> %u) "
241 "from %s\n", pud->pud_uid, pud->pud_gid,
242 pud->pud_fsuid, pud->pud_fsgid,
243 ucred->uc_identity->mi_gid, libcfs_nid2str(peernid));
244 GOTO(out, rc = -EACCES);
248 * NB: remote client not allowed to setgroups anyway.
250 if (!remote && perm & CFS_SETGRP_PERM) {
251 if (pud->pud_ngroups) {
252 /* setgroups for local client */
253 ucred->uc_ginfo = groups_alloc(pud->pud_ngroups);
254 if (!ucred->uc_ginfo) {
255 CERROR("failed to alloc %d groups\n",
257 GOTO(out, rc = -ENOMEM);
260 lustre_groups_from_list(ucred->uc_ginfo,
262 lustre_groups_sort(ucred->uc_ginfo);
264 ucred->uc_ginfo = NULL;
267 ucred->uc_suppgids[0] = -1;
268 ucred->uc_suppgids[1] = -1;
269 ucred->uc_ginfo = NULL;
272 ucred->uc_uid = pud->pud_uid;
273 ucred->uc_gid = pud->pud_gid;
274 ucred->uc_fsuid = pud->pud_fsuid;
275 ucred->uc_fsgid = pud->pud_fsgid;
277 /* process root_squash here. */
278 mdt_root_squash(info, peernid);
280 /* remove fs privilege for non-root user. */
282 ucred->uc_cap = pud->pud_cap & ~CFS_CAP_FS_MASK;
284 ucred->uc_cap = pud->pud_cap;
285 if (remote && !(perm & CFS_RMTOWN_PERM))
286 ucred->uc_cap &= ~(CFS_CAP_SYS_RESOURCE_MASK |
288 ucred->uc_valid = UCRED_NEW;
294 if (ucred->uc_ginfo) {
295 put_group_info(ucred->uc_ginfo);
296 ucred->uc_ginfo = NULL;
298 if (ucred->uc_identity) {
299 mdt_identity_put(mdt->mdt_identity_cache,
301 ucred->uc_identity = NULL;
308 int mdt_check_ucred(struct mdt_thread_info *info)
310 struct ptlrpc_request *req = mdt_info_req(info);
311 struct mdt_device *mdt = info->mti_mdt;
312 struct ptlrpc_user_desc *pud = req->rq_user_desc;
313 struct lu_ucred *ucred = mdt_ucred(info);
314 struct md_identity *identity = NULL;
315 lnet_nid_t peernid = req->rq_peer.nid;
317 __u32 remote = exp_connect_rmtclient(info->mti_exp);
324 LASSERT(ucred != NULL);
325 if ((ucred->uc_valid == UCRED_OLD) || (ucred->uc_valid == UCRED_NEW))
328 if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
331 /* sanity check: if we use strong authentication, we expect the
332 * uid which client claimed is true */
334 if (req->rq_auth_mapped_uid == INVALID_UID) {
335 CDEBUG(D_SEC, "remote user not mapped, deny access!\n");
339 if (ptlrpc_user_desc_do_idmap(req, pud))
342 if (req->rq_auth_mapped_uid != pud->pud_uid) {
343 CDEBUG(D_SEC, "remote client %s: auth/mapped uid %u/%u "
344 "while client claims %u:%u/%u:%u\n",
345 libcfs_nid2str(peernid), req->rq_auth_uid,
346 req->rq_auth_mapped_uid,
347 pud->pud_uid, pud->pud_gid,
348 pud->pud_fsuid, pud->pud_fsgid);
352 if (req->rq_auth_uid != pud->pud_uid) {
353 CDEBUG(D_SEC, "local client %s: auth uid %u "
354 "while client claims %u:%u/%u:%u\n",
355 libcfs_nid2str(peernid), req->rq_auth_uid,
356 pud->pud_uid, pud->pud_gid,
357 pud->pud_fsuid, pud->pud_fsgid);
362 if (is_identity_get_disabled(mdt->mdt_identity_cache)) {
364 CDEBUG(D_SEC, "remote client must run with identity_get "
371 identity = mdt_identity_get(mdt->mdt_identity_cache, pud->pud_uid);
372 if (IS_ERR(identity)) {
373 if (unlikely(PTR_ERR(identity) == -EREMCHG &&
377 CDEBUG(D_SEC, "Deny access without identity: uid %u\n",
383 perm = mdt_identity_get_perm(identity, remote, peernid);
384 /* find out the setuid/setgid attempt */
385 setuid = (pud->pud_uid != pud->pud_fsuid);
386 setgid = (pud->pud_gid != pud->pud_fsgid ||
387 pud->pud_gid != identity->mi_gid);
389 /* check permission of setuid */
390 if (setuid && !(perm & CFS_SETUID_PERM)) {
391 CDEBUG(D_SEC, "mdt blocked setuid attempt (%u -> %u) from %s\n",
392 pud->pud_uid, pud->pud_fsuid, libcfs_nid2str(peernid));
393 GOTO(out, rc = -EACCES);
396 /* check permission of setgid */
397 if (setgid && !(perm & CFS_SETGID_PERM)) {
398 CDEBUG(D_SEC, "mdt blocked setgid attempt (%u:%u/%u:%u -> %u) "
399 "from %s\n", pud->pud_uid, pud->pud_gid,
400 pud->pud_fsuid, pud->pud_fsgid, identity->mi_gid,
401 libcfs_nid2str(peernid));
402 GOTO(out, rc = -EACCES);
408 mdt_identity_put(mdt->mdt_identity_cache, identity);
412 static int old_init_ucred(struct mdt_thread_info *info,
413 struct mdt_body *body)
415 struct lu_ucred *uc = mdt_ucred(info);
416 struct mdt_device *mdt = info->mti_mdt;
417 struct md_identity *identity = NULL;
422 uc->uc_valid = UCRED_INVALID;
423 uc->uc_o_uid = uc->uc_uid = body->uid;
424 uc->uc_o_gid = uc->uc_gid = body->gid;
425 uc->uc_o_fsuid = uc->uc_fsuid = body->fsuid;
426 uc->uc_o_fsgid = uc->uc_fsgid = body->fsgid;
427 uc->uc_suppgids[0] = body->suppgid;
428 uc->uc_suppgids[1] = -1;
430 if (!is_identity_get_disabled(mdt->mdt_identity_cache)) {
431 identity = mdt_identity_get(mdt->mdt_identity_cache,
433 if (IS_ERR(identity)) {
434 if (unlikely(PTR_ERR(identity) == -EREMCHG)) {
437 CDEBUG(D_SEC, "Deny access without identity: "
438 "uid %u\n", uc->uc_fsuid);
443 uc->uc_identity = identity;
445 /* process root_squash here. */
446 mdt_root_squash(info, mdt_info_req(info)->rq_peer.nid);
448 /* remove fs privilege for non-root user. */
450 uc->uc_cap = body->capability & ~CFS_CAP_FS_MASK;
452 uc->uc_cap = body->capability;
453 uc->uc_valid = UCRED_OLD;
458 static int old_init_ucred_reint(struct mdt_thread_info *info)
460 struct lu_ucred *uc = mdt_ucred(info);
461 struct mdt_device *mdt = info->mti_mdt;
462 struct md_identity *identity = NULL;
467 uc->uc_valid = UCRED_INVALID;
468 uc->uc_o_uid = uc->uc_o_fsuid = uc->uc_uid = uc->uc_fsuid;
469 uc->uc_o_gid = uc->uc_o_fsgid = uc->uc_gid = uc->uc_fsgid;
471 if (!is_identity_get_disabled(mdt->mdt_identity_cache)) {
472 identity = mdt_identity_get(mdt->mdt_identity_cache,
474 if (IS_ERR(identity)) {
475 if (unlikely(PTR_ERR(identity) == -EREMCHG)) {
478 CDEBUG(D_SEC, "Deny access without identity: "
479 "uid %u\n", uc->uc_fsuid);
484 uc->uc_identity = identity;
486 /* process root_squash here. */
487 mdt_root_squash(info, mdt_info_req(info)->rq_peer.nid);
489 /* remove fs privilege for non-root user. */
491 uc->uc_cap &= ~CFS_CAP_FS_MASK;
492 uc->uc_valid = UCRED_OLD;
497 int mdt_init_ucred(struct mdt_thread_info *info, struct mdt_body *body)
499 struct ptlrpc_request *req = mdt_info_req(info);
500 struct lu_ucred *uc = mdt_ucred(info);
503 if ((uc->uc_valid == UCRED_OLD) || (uc->uc_valid == UCRED_NEW))
506 mdt_exit_ucred(info);
508 if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
509 return old_init_ucred(info, body);
511 return new_init_ucred(info, BODY_INIT, body);
514 int mdt_init_ucred_reint(struct mdt_thread_info *info)
516 struct ptlrpc_request *req = mdt_info_req(info);
517 struct lu_ucred *uc = mdt_ucred(info);
520 if ((uc->uc_valid == UCRED_OLD) || (uc->uc_valid == UCRED_NEW))
523 mdt_exit_ucred(info);
525 if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
526 return old_init_ucred_reint(info);
528 return new_init_ucred(info, REC_INIT, NULL);
531 /* copied from lov/lov_ea.c, just for debugging, will be removed later */
532 void mdt_dump_lmm(int level, const struct lov_mds_md *lmm)
534 const struct lov_ost_data_v1 *lod;
538 count = le16_to_cpu(((struct lov_user_md*)lmm)->lmm_stripe_count);
540 CDEBUG(level, "objid "DOSTID", magic 0x%08X, pattern %#X\n",
541 POSTID(&lmm->lmm_oi), le32_to_cpu(lmm->lmm_magic),
542 le32_to_cpu(lmm->lmm_pattern));
543 CDEBUG(level,"stripe_size=0x%x, stripe_count=0x%x\n",
544 le32_to_cpu(lmm->lmm_stripe_size), count);
545 if (count == LOV_ALL_STRIPES ||
546 le32_to_cpu(lmm->lmm_pattern) & LOV_PATTERN_F_RELEASED)
549 LASSERT(count <= LOV_MAX_STRIPE_COUNT);
550 for (i = 0, lod = lmm->lmm_objects; i < count; i++, lod++) {
552 ostid_le_to_cpu(&lod->l_ost_oi, &oi);
553 CDEBUG(level, "stripe %u idx %u subobj "DOSTID"\n",
554 i, le32_to_cpu(lod->l_ost_idx), POSTID(&oi));
558 void mdt_dump_lmv(unsigned int level, const union lmv_mds_md *lmv)
560 const struct lmv_mds_md_v1 *lmm1;
563 lmm1 = &lmv->lmv_md_v1;
564 CDEBUG(level, "magic 0x%08X, master %#X stripe_count %#x\n",
565 le32_to_cpu(lmm1->lmv_magic),
566 le32_to_cpu(lmm1->lmv_master_mdt_index),
567 le32_to_cpu(lmm1->lmv_stripe_count));
568 for (i = 0; i < le32_to_cpu(lmm1->lmv_stripe_count); i++) {
571 fid_le_to_cpu(&fid, &lmm1->lmv_stripe_fids[i]);
572 CDEBUG(level, "idx %u subobj "DFID"\n", i, PFID(&fid));
576 /* Shrink and/or grow reply buffers */
577 int mdt_fix_reply(struct mdt_thread_info *info)
579 struct req_capsule *pill = info->mti_pill;
580 struct mdt_body *body;
581 int md_size, md_packed = 0;
586 body = req_capsule_server_get(pill, &RMF_MDT_BODY);
587 LASSERT(body != NULL);
589 if (body->valid & (OBD_MD_FLDIREA | OBD_MD_FLEASIZE | OBD_MD_LINKNAME))
590 md_size = body->eadatasize;
594 acl_size = body->aclsize;
596 /* this replay - not send info to client */
597 if (info->mti_spec.no_create) {
602 CDEBUG(D_INFO, "Shrink to md_size = %d cookie/acl_size = %d"
603 " MDSCAPA = %llx, OSSCAPA = %llx\n",
605 (unsigned long long)(body->valid & OBD_MD_FLMDSCAPA),
606 (unsigned long long)(body->valid & OBD_MD_FLOSSCAPA));
610 &RMF_ACL, or &RMF_LOGCOOKIES
611 (optional) &RMF_CAPA1,
612 (optional) &RMF_CAPA2,
613 (optional) something else
616 /* MDT_MD buffer may be bigger than packed value, let's shrink all
617 * buffers before growing it */
618 if (info->mti_big_lmm_used) {
619 LASSERT(req_capsule_has_field(pill, &RMF_MDT_MD, RCL_SERVER));
620 md_packed = req_capsule_get_size(pill, &RMF_MDT_MD,
622 LASSERT(md_packed > 0);
623 /* buffer must be allocated separately */
624 LASSERT(info->mti_attr.ma_lmm !=
625 req_capsule_server_get(pill, &RMF_MDT_MD));
626 req_capsule_shrink(pill, &RMF_MDT_MD, 0, RCL_SERVER);
627 /* free big lmm if md_size is not needed */
629 info->mti_big_lmm_used = 0;
630 } else if (req_capsule_has_field(pill, &RMF_MDT_MD, RCL_SERVER)) {
631 req_capsule_shrink(pill, &RMF_MDT_MD, md_size, RCL_SERVER);
634 if (req_capsule_has_field(pill, &RMF_ACL, RCL_SERVER))
635 req_capsule_shrink(pill, &RMF_ACL, acl_size, RCL_SERVER);
636 else if (req_capsule_has_field(pill, &RMF_LOGCOOKIES, RCL_SERVER))
637 req_capsule_shrink(pill, &RMF_LOGCOOKIES,
638 acl_size, RCL_SERVER);
640 if (req_capsule_has_field(pill, &RMF_CAPA1, RCL_SERVER) &&
641 !(body->valid & OBD_MD_FLMDSCAPA))
642 req_capsule_shrink(pill, &RMF_CAPA1, 0, RCL_SERVER);
644 if (req_capsule_has_field(pill, &RMF_CAPA2, RCL_SERVER) &&
645 !(body->valid & OBD_MD_FLOSSCAPA))
646 req_capsule_shrink(pill, &RMF_CAPA2, 0, RCL_SERVER);
649 * Some more field should be shrinked if needed.
650 * This should be done by those who added fields to reply message.
653 /* Grow MD buffer if needed finally */
654 if (info->mti_big_lmm_used) {
657 LASSERT(md_size > md_packed);
658 CDEBUG(D_INFO, "Enlarge reply buffer, need extra %d bytes\n",
659 md_size - md_packed);
660 rc = req_capsule_server_grow(pill, &RMF_MDT_MD, md_size);
662 /* we can't answer with proper LOV EA, drop flags,
663 * the rc is also returned so this request is
664 * considered as failed */
665 body->valid &= ~(OBD_MD_FLDIREA | OBD_MD_FLEASIZE);
666 /* don't return transno along with error */
667 lustre_msg_set_transno(pill->rc_req->rq_repmsg, 0);
669 /* now we need to pack right LOV/LMV EA */
670 lmm = req_capsule_server_get(pill, &RMF_MDT_MD);
671 if (info->mti_attr.ma_valid & MA_LOV) {
672 LASSERT(req_capsule_get_size(pill, &RMF_MDT_MD,
674 info->mti_attr.ma_lmm_size);
675 memcpy(lmm, info->mti_attr.ma_lmm,
676 info->mti_attr.ma_lmm_size);
677 } else if (info->mti_attr.ma_valid & MA_LMV) {
678 LASSERT(req_capsule_get_size(pill, &RMF_MDT_MD,
680 info->mti_attr.ma_lmv_size);
681 memcpy(lmm, info->mti_attr.ma_lmv,
682 info->mti_attr.ma_lmv_size);
685 /* update mdt_max_mdsize so clients will be aware about that */
686 if (info->mti_mdt->mdt_max_mdsize < info->mti_attr.ma_lmm_size)
687 info->mti_mdt->mdt_max_mdsize =
688 info->mti_attr.ma_lmm_size;
689 info->mti_big_lmm_used = 0;
695 /* if object is dying, pack the lov/llog data,
696 * parameter info->mti_attr should be valid at this point! */
697 int mdt_handle_last_unlink(struct mdt_thread_info *info, struct mdt_object *mo,
698 const struct md_attr *ma)
700 struct mdt_body *repbody;
701 const struct lu_attr *la = &ma->ma_attr;
705 repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
706 LASSERT(repbody != NULL);
708 if (ma->ma_valid & MA_INODE)
709 mdt_pack_attr2body(info, repbody, la, mdt_object_fid(mo));
711 if (ma->ma_valid & MA_LOV) {
712 CERROR("No need in LOV EA upon unlink\n");
715 repbody->eadatasize = 0;
717 if (ma->ma_cookie_size && (ma->ma_valid & MA_COOKIE)) {
718 repbody->aclsize = ma->ma_cookie_size;
719 repbody->valid |= OBD_MD_FLCOOKIE;
722 if (info->mti_mdt->mdt_lut.lut_oss_capa &&
723 exp_connect_flags(info->mti_exp) & OBD_CONNECT_OSS_CAPA &&
724 repbody->valid & OBD_MD_FLEASIZE) {
725 struct lustre_capa *capa;
727 capa = req_capsule_server_get(info->mti_pill, &RMF_CAPA2);
729 capa->lc_opc = CAPA_OPC_OSS_DESTROY;
730 rc = mo_capa_get(info->mti_env, mdt_object_child(mo), capa, 0);
734 repbody->valid |= OBD_MD_FLOSSCAPA;
740 static __u64 mdt_attr_valid_xlate(__u64 in, struct mdt_reint_record *rr,
746 if (in & MDS_ATTR_MODE)
748 if (in & MDS_ATTR_UID)
750 if (in & MDS_ATTR_GID)
752 if (in & MDS_ATTR_SIZE)
754 if (in & MDS_ATTR_BLOCKS)
756 if (in & MDS_ATTR_ATIME_SET)
758 if (in & MDS_ATTR_CTIME_SET)
760 if (in & MDS_ATTR_MTIME_SET)
762 if (in & MDS_ATTR_ATTR_FLAG)
764 if (in & MDS_ATTR_KILL_SUID)
766 if (in & MDS_ATTR_KILL_SGID)
769 if (in & MDS_ATTR_FROM_OPEN)
770 rr->rr_flags |= MRF_OPEN_TRUNC;
771 if (in & MDS_OPEN_OWNEROVERRIDE)
772 ma->ma_attr_flags |= MDS_OWNEROVERRIDE;
773 if (in & MDS_ATTR_FORCE)
774 ma->ma_attr_flags |= MDS_PERM_BYPASS;
776 in &= ~(MDS_ATTR_MODE | MDS_ATTR_UID | MDS_ATTR_GID |
777 MDS_ATTR_ATIME | MDS_ATTR_MTIME | MDS_ATTR_CTIME |
778 MDS_ATTR_ATIME_SET | MDS_ATTR_CTIME_SET | MDS_ATTR_MTIME_SET |
779 MDS_ATTR_SIZE | MDS_ATTR_BLOCKS | MDS_ATTR_ATTR_FLAG |
780 MDS_ATTR_FORCE | MDS_ATTR_KILL_SUID | MDS_ATTR_KILL_SGID |
781 MDS_ATTR_FROM_OPEN | MDS_OPEN_OWNEROVERRIDE);
783 CERROR("Unknown attr bits: "LPX64"\n", in);
787 void mdt_set_capainfo(struct mdt_thread_info *info, int offset,
788 const struct lu_fid *fid, struct lustre_capa *capa)
790 struct lu_capainfo *lci;
792 LASSERT(offset >= 0 && offset < LU_CAPAINFO_MAX);
793 if (!info->mti_mdt->mdt_lut.lut_mds_capa ||
794 !(exp_connect_flags(info->mti_exp) & OBD_CONNECT_MDS_CAPA))
797 lci = lu_capainfo_get(info->mti_env);
799 lci->lci_fid[offset] = *fid;
800 lci->lci_capa[offset] = capa;
804 void mdt_dump_capainfo(struct mdt_thread_info *info)
806 struct lu_capainfo *lci = lu_capainfo_get(info->mti_env);
812 for (i = 0; i < LU_CAPAINFO_MAX; i++) {
813 if (lci->lci_capa[i] == NULL) {
814 CERROR("no capa for index %d "DFID"\n",
815 i, PFID(&lci->lci_fid[i]));
818 if (lci->lci_capa[i] == BYPASS_CAPA) {
819 CERROR("bypass for index %d "DFID"\n",
820 i, PFID(&lci->lci_fid[i]));
823 DEBUG_CAPA(D_ERROR, lci->lci_capa[i], "index %d", i);
826 #endif /* DEBUG_CAPA */
830 int mdt_name_unpack(struct req_capsule *pill,
831 const struct req_msg_field *field,
833 enum mdt_name_flags flags)
835 ln->ln_name = req_capsule_client_get(pill, field);
836 ln->ln_namelen = req_capsule_get_size(pill, field, RCL_CLIENT) - 1;
838 if (!lu_name_is_valid(ln)) {
845 if ((flags & MNF_FIX_ANON) &&
846 ln->ln_namelen == 1 && ln->ln_name[0] == '/') {
847 /* Newer (3.x) kernels use a name of "/" for the
848 * "anonymous" disconnected dentries from NFS
849 * filehandle conversion. See d_obtain_alias(). */
857 static int mdt_setattr_unpack_rec(struct mdt_thread_info *info)
859 struct lu_ucred *uc = mdt_ucred(info);
860 struct md_attr *ma = &info->mti_attr;
861 struct lu_attr *la = &ma->ma_attr;
862 struct req_capsule *pill = info->mti_pill;
863 struct mdt_reint_record *rr = &info->mti_rr;
864 struct mdt_rec_setattr *rec;
867 CLASSERT(sizeof(struct mdt_rec_setattr)== sizeof(struct mdt_rec_reint));
868 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
872 /* This prior initialization is needed for old_init_ucred_reint() */
873 uc->uc_fsuid = rec->sa_fsuid;
874 uc->uc_fsgid = rec->sa_fsgid;
875 uc->uc_cap = rec->sa_cap;
876 uc->uc_suppgids[0] = rec->sa_suppgid;
877 uc->uc_suppgids[1] = -1;
879 rr->rr_fid1 = &rec->sa_fid;
880 la->la_valid = mdt_attr_valid_xlate(rec->sa_valid, rr, ma);
881 /* If MDS_ATTR_xTIME is set without MDS_ATTR_xTIME_SET and
882 * the client does not have OBD_CONNECT_FULL20, convert it
883 * to LA_xTIME. LU-3036 */
884 if (!(exp_connect_flags(info->mti_exp) & OBD_CONNECT_FULL20)) {
885 if (!(rec->sa_valid & MDS_ATTR_ATIME_SET) &&
886 (rec->sa_valid & MDS_ATTR_ATIME))
887 la->la_valid |= LA_ATIME;
888 if (!(rec->sa_valid & MDS_ATTR_MTIME_SET) &&
889 (rec->sa_valid & MDS_ATTR_MTIME))
890 la->la_valid |= LA_MTIME;
891 if (!(rec->sa_valid & MDS_ATTR_CTIME_SET) &&
892 (rec->sa_valid & MDS_ATTR_CTIME))
893 la->la_valid |= LA_CTIME;
895 la->la_mode = rec->sa_mode;
896 la->la_flags = rec->sa_attr_flags;
897 la->la_uid = rec->sa_uid;
898 la->la_gid = rec->sa_gid;
899 la->la_size = rec->sa_size;
900 la->la_blocks = rec->sa_blocks;
901 la->la_ctime = rec->sa_ctime;
902 la->la_atime = rec->sa_atime;
903 la->la_mtime = rec->sa_mtime;
904 ma->ma_valid = MA_INODE;
906 if (rec->sa_bias & MDS_DATA_MODIFIED)
907 ma->ma_attr_flags |= MDS_DATA_MODIFIED;
909 ma->ma_attr_flags &= ~MDS_DATA_MODIFIED;
911 if (rec->sa_bias & MDS_HSM_RELEASE)
912 ma->ma_attr_flags |= MDS_HSM_RELEASE;
914 ma->ma_attr_flags &= ~MDS_HSM_RELEASE;
916 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
917 mdt_set_capainfo(info, 0, rr->rr_fid1,
918 req_capsule_client_get(pill, &RMF_CAPA1));
923 static int mdt_ioepoch_unpack(struct mdt_thread_info *info)
925 struct req_capsule *pill = info->mti_pill;
928 if (req_capsule_get_size(pill, &RMF_MDT_EPOCH, RCL_CLIENT))
930 req_capsule_client_get(pill, &RMF_MDT_EPOCH);
932 info->mti_ioepoch = NULL;
933 RETURN(info->mti_ioepoch == NULL ? -EFAULT : 0);
936 static inline int mdt_dlmreq_unpack(struct mdt_thread_info *info) {
937 struct req_capsule *pill = info->mti_pill;
939 if (req_capsule_get_size(pill, &RMF_DLM_REQ, RCL_CLIENT)) {
940 info->mti_dlm_req = req_capsule_client_get(pill, &RMF_DLM_REQ);
941 if (info->mti_dlm_req == NULL)
948 static int mdt_setattr_unpack(struct mdt_thread_info *info)
950 struct mdt_reint_record *rr = &info->mti_rr;
951 struct md_attr *ma = &info->mti_attr;
952 struct req_capsule *pill = info->mti_pill;
956 rc = mdt_setattr_unpack_rec(info);
960 /* Epoch may be absent */
961 mdt_ioepoch_unpack(info);
963 if (req_capsule_field_present(pill, &RMF_EADATA, RCL_CLIENT)) {
964 rr->rr_eadata = req_capsule_client_get(pill, &RMF_EADATA);
965 rr->rr_eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
967 if (rr->rr_eadatalen > 0) {
968 const struct lmv_user_md *lum;
971 /* Sigh ma_valid(from req) does not indicate whether
972 * it will set LOV/LMV EA, so we have to check magic */
973 if (le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC) {
974 ma->ma_valid |= MA_LMV;
975 ma->ma_lmv = (void *)rr->rr_eadata;
976 ma->ma_lmv_size = rr->rr_eadatalen;
978 ma->ma_valid |= MA_LOV;
979 ma->ma_lmm = (void *)rr->rr_eadata;
980 ma->ma_lmm_size = rr->rr_eadatalen;
985 rc = mdt_dlmreq_unpack(info);
989 static int mdt_hsm_release_unpack(struct mdt_thread_info *info)
991 struct md_attr *ma = &info->mti_attr;
992 struct req_capsule *pill = info->mti_pill;
995 if (!(ma->ma_attr_flags & MDS_HSM_RELEASE))
998 req_capsule_extend(pill, &RQF_MDS_RELEASE_CLOSE);
1000 if (!(req_capsule_has_field(pill, &RMF_CLOSE_DATA, RCL_CLIENT) &&
1001 req_capsule_field_present(pill, &RMF_CLOSE_DATA, RCL_CLIENT)))
1007 int mdt_close_unpack(struct mdt_thread_info *info)
1012 rc = mdt_ioepoch_unpack(info);
1016 rc = mdt_setattr_unpack_rec(info);
1020 rc = mdt_hsm_release_unpack(info);
1024 RETURN(mdt_init_ucred_reint(info));
1027 static int mdt_create_unpack(struct mdt_thread_info *info)
1029 struct lu_ucred *uc = mdt_ucred(info);
1030 struct mdt_rec_create *rec;
1031 struct lu_attr *attr = &info->mti_attr.ma_attr;
1032 struct mdt_reint_record *rr = &info->mti_rr;
1033 struct req_capsule *pill = info->mti_pill;
1034 struct md_op_spec *sp = &info->mti_spec;
1038 CLASSERT(sizeof(struct mdt_rec_create) == sizeof(struct mdt_rec_reint));
1039 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1043 /* This prior initialization is needed for old_init_ucred_reint() */
1044 uc->uc_fsuid = rec->cr_fsuid;
1045 uc->uc_fsgid = rec->cr_fsgid;
1046 uc->uc_cap = rec->cr_cap;
1047 uc->uc_suppgids[0] = rec->cr_suppgid1;
1048 uc->uc_suppgids[1] = -1;
1049 uc->uc_umask = rec->cr_umask;
1051 rr->rr_fid1 = &rec->cr_fid1;
1052 rr->rr_fid2 = &rec->cr_fid2;
1053 attr->la_mode = rec->cr_mode;
1054 attr->la_rdev = rec->cr_rdev;
1055 attr->la_uid = rec->cr_fsuid;
1056 attr->la_gid = rec->cr_fsgid;
1057 attr->la_ctime = rec->cr_time;
1058 attr->la_mtime = rec->cr_time;
1059 attr->la_atime = rec->cr_time;
1060 attr->la_valid = LA_MODE | LA_RDEV | LA_UID | LA_GID | LA_TYPE |
1061 LA_CTIME | LA_MTIME | LA_ATIME;
1062 memset(&sp->u, 0, sizeof(sp->u));
1063 sp->sp_cr_flags = get_mrc_cr_flags(rec);
1065 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1066 mdt_set_capainfo(info, 0, rr->rr_fid1,
1067 req_capsule_client_get(pill, &RMF_CAPA1));
1068 mdt_set_capainfo(info, 1, rr->rr_fid2, BYPASS_CAPA);
1070 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1074 if (S_ISLNK(attr->la_mode)) {
1075 const char *tgt = NULL;
1077 req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_SYM);
1078 if (req_capsule_get_size(pill, &RMF_SYMTGT, RCL_CLIENT)) {
1079 tgt = req_capsule_client_get(pill, &RMF_SYMTGT);
1080 sp->u.sp_symname = tgt;
1085 req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_RMT_ACL);
1086 if (S_ISDIR(attr->la_mode) &&
1087 req_capsule_get_size(pill, &RMF_EADATA, RCL_CLIENT) > 0) {
1088 sp->u.sp_ea.eadata =
1089 req_capsule_client_get(pill, &RMF_EADATA);
1090 sp->u.sp_ea.eadatalen =
1091 req_capsule_get_size(pill, &RMF_EADATA,
1093 sp->sp_cr_flags |= MDS_OPEN_HAS_EA;
1097 rc = mdt_dlmreq_unpack(info);
1101 static int mdt_link_unpack(struct mdt_thread_info *info)
1103 struct lu_ucred *uc = mdt_ucred(info);
1104 struct mdt_rec_link *rec;
1105 struct lu_attr *attr = &info->mti_attr.ma_attr;
1106 struct mdt_reint_record *rr = &info->mti_rr;
1107 struct req_capsule *pill = info->mti_pill;
1111 CLASSERT(sizeof(struct mdt_rec_link) == sizeof(struct mdt_rec_reint));
1112 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1116 /* This prior initialization is needed for old_init_ucred_reint() */
1117 uc->uc_fsuid = rec->lk_fsuid;
1118 uc->uc_fsgid = rec->lk_fsgid;
1119 uc->uc_cap = rec->lk_cap;
1120 uc->uc_suppgids[0] = rec->lk_suppgid1;
1121 uc->uc_suppgids[1] = rec->lk_suppgid2;
1123 attr->la_uid = rec->lk_fsuid;
1124 attr->la_gid = rec->lk_fsgid;
1125 rr->rr_fid1 = &rec->lk_fid1;
1126 rr->rr_fid2 = &rec->lk_fid2;
1127 attr->la_ctime = rec->lk_time;
1128 attr->la_mtime = rec->lk_time;
1129 attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME;
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 if (req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT))
1135 mdt_set_capainfo(info, 1, rr->rr_fid2,
1136 req_capsule_client_get(pill, &RMF_CAPA2));
1138 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1142 rc = mdt_dlmreq_unpack(info);
1147 static int mdt_unlink_unpack(struct mdt_thread_info *info)
1149 struct lu_ucred *uc = mdt_ucred(info);
1150 struct mdt_rec_unlink *rec;
1151 struct md_attr *ma = &info->mti_attr;
1152 struct lu_attr *attr = &info->mti_attr.ma_attr;
1153 struct mdt_reint_record *rr = &info->mti_rr;
1154 struct req_capsule *pill = info->mti_pill;
1158 CLASSERT(sizeof(struct mdt_rec_unlink) == sizeof(struct mdt_rec_reint));
1159 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1163 /* This prior initialization is needed for old_init_ucred_reint() */
1164 uc->uc_fsuid = rec->ul_fsuid;
1165 uc->uc_fsgid = rec->ul_fsgid;
1166 uc->uc_cap = rec->ul_cap;
1167 uc->uc_suppgids[0] = rec->ul_suppgid1;
1168 uc->uc_suppgids[1] = -1;
1170 attr->la_uid = rec->ul_fsuid;
1171 attr->la_gid = rec->ul_fsgid;
1172 rr->rr_fid1 = &rec->ul_fid1;
1173 rr->rr_fid2 = &rec->ul_fid2;
1174 attr->la_ctime = rec->ul_time;
1175 attr->la_mtime = rec->ul_time;
1176 attr->la_mode = rec->ul_mode;
1177 attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME | LA_MODE;
1179 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1180 mdt_set_capainfo(info, 0, rr->rr_fid1,
1181 req_capsule_client_get(pill, &RMF_CAPA1));
1183 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1187 if (rec->ul_bias & MDS_VTX_BYPASS)
1188 ma->ma_attr_flags |= MDS_VTX_BYPASS;
1190 ma->ma_attr_flags &= ~MDS_VTX_BYPASS;
1192 info->mti_spec.no_create = !!req_is_replay(mdt_info_req(info));
1194 rc = mdt_dlmreq_unpack(info);
1198 static int mdt_rmentry_unpack(struct mdt_thread_info *info)
1200 info->mti_spec.sp_rm_entry = 1;
1201 return mdt_unlink_unpack(info);
1204 static int mdt_rename_unpack(struct mdt_thread_info *info)
1206 struct lu_ucred *uc = mdt_ucred(info);
1207 struct mdt_rec_rename *rec;
1208 struct md_attr *ma = &info->mti_attr;
1209 struct lu_attr *attr = &info->mti_attr.ma_attr;
1210 struct mdt_reint_record *rr = &info->mti_rr;
1211 struct req_capsule *pill = info->mti_pill;
1215 CLASSERT(sizeof(struct mdt_rec_rename) == sizeof(struct mdt_rec_reint));
1216 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1220 /* This prior initialization is needed for old_init_ucred_reint() */
1221 uc->uc_fsuid = rec->rn_fsuid;
1222 uc->uc_fsgid = rec->rn_fsgid;
1223 uc->uc_cap = rec->rn_cap;
1224 uc->uc_suppgids[0] = rec->rn_suppgid1;
1225 uc->uc_suppgids[1] = rec->rn_suppgid2;
1227 attr->la_uid = rec->rn_fsuid;
1228 attr->la_gid = rec->rn_fsgid;
1229 rr->rr_fid1 = &rec->rn_fid1;
1230 rr->rr_fid2 = &rec->rn_fid2;
1231 attr->la_ctime = rec->rn_time;
1232 attr->la_mtime = rec->rn_time;
1233 /* rename_tgt contains the mode already */
1234 attr->la_mode = rec->rn_mode;
1235 attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME | LA_MODE;
1237 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1238 mdt_set_capainfo(info, 0, rr->rr_fid1,
1239 req_capsule_client_get(pill, &RMF_CAPA1));
1240 if (req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT))
1241 mdt_set_capainfo(info, 1, rr->rr_fid2,
1242 req_capsule_client_get(pill, &RMF_CAPA2));
1244 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1248 rc = mdt_name_unpack(pill, &RMF_SYMTGT, &rr->rr_tgt_name, 0);
1252 if (rec->rn_bias & MDS_VTX_BYPASS)
1253 ma->ma_attr_flags |= MDS_VTX_BYPASS;
1255 ma->ma_attr_flags &= ~MDS_VTX_BYPASS;
1257 info->mti_spec.no_create = !!req_is_replay(mdt_info_req(info));
1259 rc = mdt_dlmreq_unpack(info);
1264 * please see comment above LOV_MAGIC_V1_DEF
1266 static void mdt_fix_lov_magic(struct mdt_thread_info *info)
1268 struct mdt_reint_record *rr = &info->mti_rr;
1269 struct lov_user_md_v1 *v1;
1271 v1 = (void *)rr->rr_eadata;
1274 if (unlikely(req_is_replay(mdt_info_req(info)))) {
1275 if (v1->lmm_magic == LOV_USER_MAGIC_V1) {
1276 v1->lmm_magic = LOV_MAGIC_V1_DEF;
1277 } else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V1)) {
1278 v1->lmm_magic = __swab32(LOV_MAGIC_V1_DEF);
1279 } else if (v1->lmm_magic == LOV_USER_MAGIC_V3) {
1280 v1->lmm_magic = LOV_MAGIC_V3_DEF;
1281 } else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V3)) {
1282 v1->lmm_magic = __swab32(LOV_MAGIC_V3_DEF);
1287 static int mdt_open_unpack(struct mdt_thread_info *info)
1289 struct lu_ucred *uc = mdt_ucred(info);
1290 struct mdt_rec_create *rec;
1291 struct lu_attr *attr = &info->mti_attr.ma_attr;
1292 struct req_capsule *pill = info->mti_pill;
1293 struct mdt_reint_record *rr = &info->mti_rr;
1294 struct ptlrpc_request *req = mdt_info_req(info);
1295 struct md_op_spec *sp = &info->mti_spec;
1298 CLASSERT(sizeof(struct mdt_rec_create) == sizeof(struct mdt_rec_reint));
1299 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1303 /* This prior initialization is needed for old_init_ucred_reint() */
1304 uc->uc_fsuid = rec->cr_fsuid;
1305 uc->uc_fsgid = rec->cr_fsgid;
1306 uc->uc_cap = rec->cr_cap;
1307 uc->uc_suppgids[0] = rec->cr_suppgid1;
1308 uc->uc_suppgids[1] = rec->cr_suppgid2;
1309 uc->uc_umask = rec->cr_umask;
1311 rr->rr_fid1 = &rec->cr_fid1;
1312 rr->rr_fid2 = &rec->cr_fid2;
1313 rr->rr_handle = &rec->cr_old_handle;
1314 attr->la_mode = rec->cr_mode;
1315 attr->la_rdev = rec->cr_rdev;
1316 attr->la_uid = rec->cr_fsuid;
1317 attr->la_gid = rec->cr_fsgid;
1318 attr->la_ctime = rec->cr_time;
1319 attr->la_mtime = rec->cr_time;
1320 attr->la_atime = rec->cr_time;
1321 attr->la_valid = LA_MODE | LA_RDEV | LA_UID | LA_GID |
1322 LA_CTIME | LA_MTIME | LA_ATIME;
1323 memset(&info->mti_spec.u, 0, sizeof(info->mti_spec.u));
1324 info->mti_spec.sp_cr_flags = get_mrc_cr_flags(rec);
1325 /* Do not trigger ASSERTION if client miss to set such flags. */
1326 if (unlikely(info->mti_spec.sp_cr_flags == 0))
1328 info->mti_replayepoch = rec->cr_ioepoch;
1330 info->mti_cross_ref = !!(rec->cr_bias & MDS_CROSS_REF);
1332 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1333 mdt_set_capainfo(info, 0, rr->rr_fid1,
1334 req_capsule_client_get(pill, &RMF_CAPA1));
1335 if (req_is_replay(req) &&
1336 req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT)) {
1338 mdt_set_capainfo(info, 1, rr->rr_fid2,
1339 req_capsule_client_get(pill, &RMF_CAPA2));
1342 * FIXME: capa in replay open request might have expired,
1343 * bypass capa check. Security hole?
1345 mdt_set_capainfo(info, 0, rr->rr_fid1, BYPASS_CAPA);
1346 mdt_set_capainfo(info, 1, rr->rr_fid2, BYPASS_CAPA);
1350 mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, MNF_FIX_ANON);
1352 if (req_capsule_field_present(pill, &RMF_EADATA, RCL_CLIENT)) {
1353 rr->rr_eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
1355 if (rr->rr_eadatalen > 0) {
1356 rr->rr_eadata = req_capsule_client_get(pill,
1358 sp->u.sp_ea.eadatalen = rr->rr_eadatalen;
1359 sp->u.sp_ea.eadata = rr->rr_eadata;
1360 sp->no_create = !!req_is_replay(req);
1361 mdt_fix_lov_magic(info);
1365 * Client default md_size may be 0 right after client start,
1366 * until all osc are connected, set here just some reasonable
1367 * value to prevent misbehavior.
1369 if (rr->rr_eadatalen == 0 &&
1370 !(info->mti_spec.sp_cr_flags & MDS_OPEN_DELAY_CREATE))
1371 rr->rr_eadatalen = MIN_MD_SIZE;
1377 static int mdt_setxattr_unpack(struct mdt_thread_info *info)
1379 struct mdt_reint_record *rr = &info->mti_rr;
1380 struct lu_ucred *uc = mdt_ucred(info);
1381 struct lu_attr *attr = &info->mti_attr.ma_attr;
1382 struct req_capsule *pill = info->mti_pill;
1383 struct mdt_rec_setxattr *rec;
1388 CLASSERT(sizeof(struct mdt_rec_setxattr) ==
1389 sizeof(struct mdt_rec_reint));
1391 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1395 /* This prior initialization is needed for old_init_ucred_reint() */
1396 uc->uc_fsuid = rec->sx_fsuid;
1397 uc->uc_fsgid = rec->sx_fsgid;
1398 uc->uc_cap = rec->sx_cap;
1399 uc->uc_suppgids[0] = rec->sx_suppgid1;
1400 uc->uc_suppgids[1] = -1;
1402 rr->rr_opcode = rec->sx_opcode;
1403 rr->rr_fid1 = &rec->sx_fid;
1404 attr->la_valid = rec->sx_valid;
1405 attr->la_ctime = rec->sx_time;
1406 attr->la_size = rec->sx_size;
1407 attr->la_flags = rec->sx_flags;
1409 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1410 mdt_set_capainfo(info, 0, rr->rr_fid1,
1411 req_capsule_client_get(pill, &RMF_CAPA1));
1413 mdt_set_capainfo(info, 0, rr->rr_fid1, BYPASS_CAPA);
1415 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1419 if (req_capsule_field_present(pill, &RMF_EADATA, RCL_CLIENT)) {
1420 rr->rr_eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
1422 if (rr->rr_eadatalen > 0) {
1423 rr->rr_eadata = req_capsule_client_get(pill,
1425 if (rr->rr_eadata == NULL)
1428 rr->rr_eadata = NULL;
1430 } else if (!(attr->la_valid & OBD_MD_FLXATTRRM)) {
1431 CDEBUG(D_INFO, "no xattr data supplied\n");
1435 if (mdt_dlmreq_unpack(info) < 0)
1442 typedef int (*reint_unpacker)(struct mdt_thread_info *info);
1444 static reint_unpacker mdt_reint_unpackers[REINT_MAX] = {
1445 [REINT_SETATTR] = mdt_setattr_unpack,
1446 [REINT_CREATE] = mdt_create_unpack,
1447 [REINT_LINK] = mdt_link_unpack,
1448 [REINT_UNLINK] = mdt_unlink_unpack,
1449 [REINT_RENAME] = mdt_rename_unpack,
1450 [REINT_OPEN] = mdt_open_unpack,
1451 [REINT_SETXATTR] = mdt_setxattr_unpack,
1452 [REINT_RMENTRY] = mdt_rmentry_unpack,
1455 int mdt_reint_unpack(struct mdt_thread_info *info, __u32 op)
1460 memset(&info->mti_rr, 0, sizeof(info->mti_rr));
1461 if (op < REINT_MAX && mdt_reint_unpackers[op] != NULL) {
1462 info->mti_rr.rr_opcode = op;
1463 rc = mdt_reint_unpackers[op](info);
1465 CERROR("Unexpected opcode %d\n", op);