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);
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 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->mbo_suppgid;
159 ucred->uc_suppgids[1] = -1;
162 /* sanity check: we expect the uid which client claimed is true */
164 if (!uid_valid(make_kuid(&init_user_ns, req->rq_auth_mapped_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 (!uid_valid(make_kuid(&init_user_ns, req->rq_auth_mapped_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->mbo_uid;
424 uc->uc_o_gid = uc->uc_gid = body->mbo_gid;
425 uc->uc_o_fsuid = uc->uc_fsuid = body->mbo_fsuid;
426 uc->uc_o_fsgid = uc->uc_fsgid = body->mbo_fsgid;
427 uc->uc_suppgids[0] = body->mbo_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->mbo_capability & ~CFS_CAP_FS_MASK;
452 uc->uc_cap = body->mbo_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, __u64 valid)
534 const struct lov_ost_data_v1 *lod;
538 if (likely(!cfs_cdebug_show(level, DEBUG_SUBSYSTEM)))
541 count = le16_to_cpu(((struct lov_user_md *)lmm)->lmm_stripe_count);
543 CDEBUG(level, "objid "DOSTID", magic 0x%08X, pattern %#X\n",
544 POSTID(&lmm->lmm_oi), le32_to_cpu(lmm->lmm_magic),
545 le32_to_cpu(lmm->lmm_pattern));
546 CDEBUG(level, "stripe_size=0x%x, stripe_count=0x%x\n",
547 le32_to_cpu(lmm->lmm_stripe_size), count);
549 /* If it's a directory or a released file, then there are
550 * no actual objects to print, so bail out. */
551 if (valid & OBD_MD_FLDIREA ||
552 le32_to_cpu(lmm->lmm_pattern) & LOV_PATTERN_F_RELEASED)
555 LASSERT(count <= LOV_MAX_STRIPE_COUNT);
556 for (i = 0, lod = lmm->lmm_objects; i < count; i++, lod++) {
559 ostid_le_to_cpu(&lod->l_ost_oi, &oi);
560 CDEBUG(level, "stripe %u idx %u subobj "DOSTID"\n",
561 i, le32_to_cpu(lod->l_ost_idx), POSTID(&oi));
565 void mdt_dump_lmv(unsigned int level, const union lmv_mds_md *lmv)
567 const struct lmv_mds_md_v1 *lmm1;
570 if (likely(!cfs_cdebug_show(level, DEBUG_SUBSYSTEM)))
573 lmm1 = &lmv->lmv_md_v1;
574 CDEBUG(level, "magic 0x%08X, master %#X stripe_count %#x\n",
575 le32_to_cpu(lmm1->lmv_magic),
576 le32_to_cpu(lmm1->lmv_master_mdt_index),
577 le32_to_cpu(lmm1->lmv_stripe_count));
579 if (le32_to_cpu(lmm1->lmv_magic) == LMV_MAGIC_STRIPE)
582 for (i = 0; i < le32_to_cpu(lmm1->lmv_stripe_count); i++) {
585 fid_le_to_cpu(&fid, &lmm1->lmv_stripe_fids[i]);
586 CDEBUG(level, "idx %u subobj "DFID"\n", i, PFID(&fid));
590 /* Shrink and/or grow reply buffers */
591 int mdt_fix_reply(struct mdt_thread_info *info)
593 struct req_capsule *pill = info->mti_pill;
594 struct mdt_body *body;
595 int md_size, md_packed = 0;
600 body = req_capsule_server_get(pill, &RMF_MDT_BODY);
601 LASSERT(body != NULL);
603 if (body->mbo_valid & (OBD_MD_FLDIREA | OBD_MD_FLEASIZE |
605 md_size = body->mbo_eadatasize;
609 acl_size = body->mbo_aclsize;
611 /* this replay - not send info to client */
612 if (info->mti_spec.no_create) {
617 CDEBUG(D_INFO, "Shrink to md_size = %d cookie/acl_size = %d"
618 " MDSCAPA = %llx, OSSCAPA = %llx\n",
620 (unsigned long long)(body->mbo_valid & OBD_MD_FLMDSCAPA),
621 (unsigned long long)(body->mbo_valid & OBD_MD_FLOSSCAPA));
625 &RMF_ACL, or &RMF_LOGCOOKIES
626 (optional) &RMF_CAPA1,
627 (optional) &RMF_CAPA2,
628 (optional) something else
631 /* MDT_MD buffer may be bigger than packed value, let's shrink all
632 * buffers before growing it */
633 if (info->mti_big_lmm_used) {
634 /* big_lmm buffer may be used even without packing the result
635 * into reply, just for internal server needs */
636 if (req_capsule_has_field(pill, &RMF_MDT_MD, RCL_SERVER))
637 md_packed = req_capsule_get_size(pill, &RMF_MDT_MD,
640 /* free big lmm if md_size is not needed */
641 if (md_size == 0 || md_packed == 0) {
642 info->mti_big_lmm_used = 0;
644 /* buffer must be allocated separately */
645 LASSERT(info->mti_attr.ma_lmm !=
646 req_capsule_server_get(pill, &RMF_MDT_MD));
647 req_capsule_shrink(pill, &RMF_MDT_MD, 0, RCL_SERVER);
649 } else if (req_capsule_has_field(pill, &RMF_MDT_MD, RCL_SERVER)) {
650 req_capsule_shrink(pill, &RMF_MDT_MD, md_size, RCL_SERVER);
653 if (req_capsule_has_field(pill, &RMF_ACL, RCL_SERVER))
654 req_capsule_shrink(pill, &RMF_ACL, acl_size, RCL_SERVER);
655 else if (req_capsule_has_field(pill, &RMF_LOGCOOKIES, RCL_SERVER))
656 req_capsule_shrink(pill, &RMF_LOGCOOKIES,
657 acl_size, RCL_SERVER);
659 if (req_capsule_has_field(pill, &RMF_CAPA1, RCL_SERVER) &&
660 !(body->mbo_valid & OBD_MD_FLMDSCAPA))
661 req_capsule_shrink(pill, &RMF_CAPA1, 0, RCL_SERVER);
663 if (req_capsule_has_field(pill, &RMF_CAPA2, RCL_SERVER) &&
664 !(body->mbo_valid & OBD_MD_FLOSSCAPA))
665 req_capsule_shrink(pill, &RMF_CAPA2, 0, RCL_SERVER);
668 * Some more field should be shrinked if needed.
669 * This should be done by those who added fields to reply message.
672 /* Grow MD buffer if needed finally */
673 if (info->mti_big_lmm_used) {
676 LASSERT(md_size > md_packed);
677 CDEBUG(D_INFO, "Enlarge reply buffer, need extra %d bytes\n",
678 md_size - md_packed);
679 rc = req_capsule_server_grow(pill, &RMF_MDT_MD, md_size);
681 /* we can't answer with proper LOV EA, drop flags,
682 * the rc is also returned so this request is
683 * considered as failed */
684 body->mbo_valid &= ~(OBD_MD_FLDIREA | OBD_MD_FLEASIZE);
685 /* don't return transno along with error */
686 lustre_msg_set_transno(pill->rc_req->rq_repmsg, 0);
688 /* now we need to pack right LOV/LMV EA */
689 lmm = req_capsule_server_get(pill, &RMF_MDT_MD);
690 if (info->mti_attr.ma_valid & MA_LOV) {
691 LASSERT(req_capsule_get_size(pill, &RMF_MDT_MD,
693 info->mti_attr.ma_lmm_size);
694 memcpy(lmm, info->mti_attr.ma_lmm,
695 info->mti_attr.ma_lmm_size);
696 } else if (info->mti_attr.ma_valid & MA_LMV) {
697 LASSERT(req_capsule_get_size(pill, &RMF_MDT_MD,
699 info->mti_attr.ma_lmv_size);
700 memcpy(lmm, info->mti_attr.ma_lmv,
701 info->mti_attr.ma_lmv_size);
704 /* update mdt_max_mdsize so clients will be aware about that */
705 if (info->mti_mdt->mdt_max_mdsize < info->mti_attr.ma_lmm_size)
706 info->mti_mdt->mdt_max_mdsize =
707 info->mti_attr.ma_lmm_size;
708 info->mti_big_lmm_used = 0;
714 /* if object is dying, pack the lov/llog data,
715 * parameter info->mti_attr should be valid at this point! */
716 int mdt_handle_last_unlink(struct mdt_thread_info *info, struct mdt_object *mo,
717 const struct md_attr *ma)
719 struct mdt_body *repbody;
720 const struct lu_attr *la = &ma->ma_attr;
724 repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
725 LASSERT(repbody != NULL);
727 if (ma->ma_valid & MA_INODE)
728 mdt_pack_attr2body(info, repbody, la, mdt_object_fid(mo));
730 if (ma->ma_valid & MA_LOV) {
731 CERROR("No need in LOV EA upon unlink\n");
734 repbody->mbo_eadatasize = 0;
736 if (info->mti_mdt->mdt_lut.lut_oss_capa &&
737 exp_connect_flags(info->mti_exp) & OBD_CONNECT_OSS_CAPA &&
738 repbody->mbo_valid & OBD_MD_FLEASIZE) {
739 struct lustre_capa *capa;
741 capa = req_capsule_server_get(info->mti_pill, &RMF_CAPA2);
743 capa->lc_opc = CAPA_OPC_OSS_DESTROY;
744 rc = mo_capa_get(info->mti_env, mdt_object_child(mo), capa, 0);
748 repbody->mbo_valid |= OBD_MD_FLOSSCAPA;
754 static __u64 mdt_attr_valid_xlate(__u64 in, struct mdt_reint_record *rr,
760 if (in & MDS_ATTR_MODE)
762 if (in & MDS_ATTR_UID)
764 if (in & MDS_ATTR_GID)
766 if (in & MDS_ATTR_SIZE)
768 if (in & MDS_ATTR_BLOCKS)
770 if (in & MDS_ATTR_ATIME_SET)
772 if (in & MDS_ATTR_CTIME_SET)
774 if (in & MDS_ATTR_MTIME_SET)
776 if (in & MDS_ATTR_ATTR_FLAG)
778 if (in & MDS_ATTR_KILL_SUID)
780 if (in & MDS_ATTR_KILL_SGID)
783 if (in & MDS_ATTR_FROM_OPEN)
784 rr->rr_flags |= MRF_OPEN_TRUNC;
785 if (in & MDS_OPEN_OWNEROVERRIDE)
786 ma->ma_attr_flags |= MDS_OWNEROVERRIDE;
787 if (in & MDS_ATTR_FORCE)
788 ma->ma_attr_flags |= MDS_PERM_BYPASS;
790 in &= ~(MDS_ATTR_MODE | MDS_ATTR_UID | MDS_ATTR_GID |
791 MDS_ATTR_ATIME | MDS_ATTR_MTIME | MDS_ATTR_CTIME |
792 MDS_ATTR_ATIME_SET | MDS_ATTR_CTIME_SET | MDS_ATTR_MTIME_SET |
793 MDS_ATTR_SIZE | MDS_ATTR_BLOCKS | MDS_ATTR_ATTR_FLAG |
794 MDS_ATTR_FORCE | MDS_ATTR_KILL_SUID | MDS_ATTR_KILL_SGID |
795 MDS_ATTR_FROM_OPEN | MDS_OPEN_OWNEROVERRIDE);
797 CERROR("Unknown attr bits: "LPX64"\n", in);
801 void mdt_set_capainfo(struct mdt_thread_info *info, int offset,
802 const struct lu_fid *fid, struct lustre_capa *capa)
804 struct lu_capainfo *lci;
806 LASSERT(offset >= 0 && offset < LU_CAPAINFO_MAX);
807 if (!info->mti_mdt->mdt_lut.lut_mds_capa ||
808 !(exp_connect_flags(info->mti_exp) & OBD_CONNECT_MDS_CAPA))
811 lci = lu_capainfo_get(info->mti_env);
813 lci->lci_fid[offset] = *fid;
814 lci->lci_capa[offset] = capa;
818 void mdt_dump_capainfo(struct mdt_thread_info *info)
820 struct lu_capainfo *lci = lu_capainfo_get(info->mti_env);
826 for (i = 0; i < LU_CAPAINFO_MAX; i++) {
827 if (lci->lci_capa[i] == NULL) {
828 CERROR("no capa for index %d "DFID"\n",
829 i, PFID(&lci->lci_fid[i]));
832 if (lci->lci_capa[i] == BYPASS_CAPA) {
833 CERROR("bypass for index %d "DFID"\n",
834 i, PFID(&lci->lci_fid[i]));
837 DEBUG_CAPA(D_ERROR, lci->lci_capa[i], "index %d", i);
840 #endif /* DEBUG_CAPA */
844 int mdt_name_unpack(struct req_capsule *pill,
845 const struct req_msg_field *field,
847 enum mdt_name_flags flags)
849 ln->ln_name = req_capsule_client_get(pill, field);
850 ln->ln_namelen = req_capsule_get_size(pill, field, RCL_CLIENT) - 1;
852 if (!lu_name_is_valid(ln)) {
859 if ((flags & MNF_FIX_ANON) &&
860 ln->ln_namelen == 1 && ln->ln_name[0] == '/') {
861 /* Newer (3.x) kernels use a name of "/" for the
862 * "anonymous" disconnected dentries from NFS
863 * filehandle conversion. See d_obtain_alias(). */
871 static int mdt_setattr_unpack_rec(struct mdt_thread_info *info)
873 struct lu_ucred *uc = mdt_ucred(info);
874 struct md_attr *ma = &info->mti_attr;
875 struct lu_attr *la = &ma->ma_attr;
876 struct req_capsule *pill = info->mti_pill;
877 struct mdt_reint_record *rr = &info->mti_rr;
878 struct mdt_rec_setattr *rec;
881 CLASSERT(sizeof(struct mdt_rec_setattr)== sizeof(struct mdt_rec_reint));
882 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
886 /* This prior initialization is needed for old_init_ucred_reint() */
887 uc->uc_fsuid = rec->sa_fsuid;
888 uc->uc_fsgid = rec->sa_fsgid;
889 uc->uc_cap = rec->sa_cap;
890 uc->uc_suppgids[0] = rec->sa_suppgid;
891 uc->uc_suppgids[1] = -1;
893 rr->rr_fid1 = &rec->sa_fid;
894 la->la_valid = mdt_attr_valid_xlate(rec->sa_valid, rr, ma);
895 /* If MDS_ATTR_xTIME is set without MDS_ATTR_xTIME_SET and
896 * the client does not have OBD_CONNECT_FULL20, convert it
897 * to LA_xTIME. LU-3036 */
898 if (!(exp_connect_flags(info->mti_exp) & OBD_CONNECT_FULL20)) {
899 if (!(rec->sa_valid & MDS_ATTR_ATIME_SET) &&
900 (rec->sa_valid & MDS_ATTR_ATIME))
901 la->la_valid |= LA_ATIME;
902 if (!(rec->sa_valid & MDS_ATTR_MTIME_SET) &&
903 (rec->sa_valid & MDS_ATTR_MTIME))
904 la->la_valid |= LA_MTIME;
905 if (!(rec->sa_valid & MDS_ATTR_CTIME_SET) &&
906 (rec->sa_valid & MDS_ATTR_CTIME))
907 la->la_valid |= LA_CTIME;
909 la->la_mode = rec->sa_mode;
910 la->la_flags = rec->sa_attr_flags;
911 la->la_uid = rec->sa_uid;
912 la->la_gid = rec->sa_gid;
913 la->la_size = rec->sa_size;
914 la->la_blocks = rec->sa_blocks;
915 la->la_ctime = rec->sa_ctime;
916 la->la_atime = rec->sa_atime;
917 la->la_mtime = rec->sa_mtime;
918 ma->ma_valid = MA_INODE;
920 if (rec->sa_bias & MDS_DATA_MODIFIED)
921 ma->ma_attr_flags |= MDS_DATA_MODIFIED;
923 ma->ma_attr_flags &= ~MDS_DATA_MODIFIED;
925 if (rec->sa_bias & MDS_HSM_RELEASE)
926 ma->ma_attr_flags |= MDS_HSM_RELEASE;
928 ma->ma_attr_flags &= ~MDS_HSM_RELEASE;
930 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
931 mdt_set_capainfo(info, 0, rr->rr_fid1,
932 req_capsule_client_get(pill, &RMF_CAPA1));
937 static int mdt_ioepoch_unpack(struct mdt_thread_info *info)
939 struct req_capsule *pill = info->mti_pill;
942 if (req_capsule_get_size(pill, &RMF_MDT_EPOCH, RCL_CLIENT))
944 req_capsule_client_get(pill, &RMF_MDT_EPOCH);
946 info->mti_ioepoch = NULL;
947 RETURN(info->mti_ioepoch == NULL ? -EFAULT : 0);
950 static inline int mdt_dlmreq_unpack(struct mdt_thread_info *info) {
951 struct req_capsule *pill = info->mti_pill;
953 if (req_capsule_get_size(pill, &RMF_DLM_REQ, RCL_CLIENT)) {
954 info->mti_dlm_req = req_capsule_client_get(pill, &RMF_DLM_REQ);
955 if (info->mti_dlm_req == NULL)
962 static int mdt_setattr_unpack(struct mdt_thread_info *info)
964 struct mdt_reint_record *rr = &info->mti_rr;
965 struct md_attr *ma = &info->mti_attr;
966 struct req_capsule *pill = info->mti_pill;
970 rc = mdt_setattr_unpack_rec(info);
974 /* Epoch may be absent */
975 mdt_ioepoch_unpack(info);
977 if (req_capsule_field_present(pill, &RMF_EADATA, RCL_CLIENT)) {
978 rr->rr_eadata = req_capsule_client_get(pill, &RMF_EADATA);
979 rr->rr_eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
981 if (rr->rr_eadatalen > 0) {
982 const struct lmv_user_md *lum;
985 /* Sigh ma_valid(from req) does not indicate whether
986 * it will set LOV/LMV EA, so we have to check magic */
987 if (le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC) {
988 ma->ma_valid |= MA_LMV;
989 ma->ma_lmv = (void *)rr->rr_eadata;
990 ma->ma_lmv_size = rr->rr_eadatalen;
992 ma->ma_valid |= MA_LOV;
993 ma->ma_lmm = (void *)rr->rr_eadata;
994 ma->ma_lmm_size = rr->rr_eadatalen;
999 rc = mdt_dlmreq_unpack(info);
1003 static int mdt_hsm_release_unpack(struct mdt_thread_info *info)
1005 struct md_attr *ma = &info->mti_attr;
1006 struct req_capsule *pill = info->mti_pill;
1009 if (!(ma->ma_attr_flags & MDS_HSM_RELEASE))
1012 req_capsule_extend(pill, &RQF_MDS_RELEASE_CLOSE);
1014 if (!(req_capsule_has_field(pill, &RMF_CLOSE_DATA, RCL_CLIENT) &&
1015 req_capsule_field_present(pill, &RMF_CLOSE_DATA, RCL_CLIENT)))
1021 int mdt_close_unpack(struct mdt_thread_info *info)
1026 rc = mdt_ioepoch_unpack(info);
1030 rc = mdt_setattr_unpack_rec(info);
1034 rc = mdt_hsm_release_unpack(info);
1038 RETURN(mdt_init_ucred_reint(info));
1041 static int mdt_create_unpack(struct mdt_thread_info *info)
1043 struct lu_ucred *uc = mdt_ucred(info);
1044 struct mdt_rec_create *rec;
1045 struct lu_attr *attr = &info->mti_attr.ma_attr;
1046 struct mdt_reint_record *rr = &info->mti_rr;
1047 struct req_capsule *pill = info->mti_pill;
1048 struct md_op_spec *sp = &info->mti_spec;
1052 CLASSERT(sizeof(struct mdt_rec_create) == sizeof(struct mdt_rec_reint));
1053 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1057 /* This prior initialization is needed for old_init_ucred_reint() */
1058 uc->uc_fsuid = rec->cr_fsuid;
1059 uc->uc_fsgid = rec->cr_fsgid;
1060 uc->uc_cap = rec->cr_cap;
1061 uc->uc_suppgids[0] = rec->cr_suppgid1;
1062 uc->uc_suppgids[1] = -1;
1063 uc->uc_umask = rec->cr_umask;
1065 rr->rr_fid1 = &rec->cr_fid1;
1066 rr->rr_fid2 = &rec->cr_fid2;
1067 attr->la_mode = rec->cr_mode;
1068 attr->la_rdev = rec->cr_rdev;
1069 attr->la_uid = rec->cr_fsuid;
1070 attr->la_gid = rec->cr_fsgid;
1071 attr->la_ctime = rec->cr_time;
1072 attr->la_mtime = rec->cr_time;
1073 attr->la_atime = rec->cr_time;
1074 attr->la_valid = LA_MODE | LA_RDEV | LA_UID | LA_GID | LA_TYPE |
1075 LA_CTIME | LA_MTIME | LA_ATIME;
1076 memset(&sp->u, 0, sizeof(sp->u));
1077 sp->sp_cr_flags = get_mrc_cr_flags(rec);
1079 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1080 mdt_set_capainfo(info, 0, rr->rr_fid1,
1081 req_capsule_client_get(pill, &RMF_CAPA1));
1082 mdt_set_capainfo(info, 1, rr->rr_fid2, BYPASS_CAPA);
1084 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1088 if (S_ISLNK(attr->la_mode)) {
1089 const char *tgt = NULL;
1091 req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_SYM);
1092 if (req_capsule_get_size(pill, &RMF_SYMTGT, RCL_CLIENT)) {
1093 tgt = req_capsule_client_get(pill, &RMF_SYMTGT);
1094 sp->u.sp_symname = tgt;
1099 req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_RMT_ACL);
1100 if (S_ISDIR(attr->la_mode) &&
1101 req_capsule_get_size(pill, &RMF_EADATA, RCL_CLIENT) > 0) {
1102 sp->u.sp_ea.eadata =
1103 req_capsule_client_get(pill, &RMF_EADATA);
1104 sp->u.sp_ea.eadatalen =
1105 req_capsule_get_size(pill, &RMF_EADATA,
1107 sp->sp_cr_flags |= MDS_OPEN_HAS_EA;
1111 rc = mdt_dlmreq_unpack(info);
1115 static int mdt_link_unpack(struct mdt_thread_info *info)
1117 struct lu_ucred *uc = mdt_ucred(info);
1118 struct mdt_rec_link *rec;
1119 struct lu_attr *attr = &info->mti_attr.ma_attr;
1120 struct mdt_reint_record *rr = &info->mti_rr;
1121 struct req_capsule *pill = info->mti_pill;
1125 CLASSERT(sizeof(struct mdt_rec_link) == sizeof(struct mdt_rec_reint));
1126 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1130 /* This prior initialization is needed for old_init_ucred_reint() */
1131 uc->uc_fsuid = rec->lk_fsuid;
1132 uc->uc_fsgid = rec->lk_fsgid;
1133 uc->uc_cap = rec->lk_cap;
1134 uc->uc_suppgids[0] = rec->lk_suppgid1;
1135 uc->uc_suppgids[1] = rec->lk_suppgid2;
1137 attr->la_uid = rec->lk_fsuid;
1138 attr->la_gid = rec->lk_fsgid;
1139 rr->rr_fid1 = &rec->lk_fid1;
1140 rr->rr_fid2 = &rec->lk_fid2;
1141 attr->la_ctime = rec->lk_time;
1142 attr->la_mtime = rec->lk_time;
1143 attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME;
1145 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1146 mdt_set_capainfo(info, 0, rr->rr_fid1,
1147 req_capsule_client_get(pill, &RMF_CAPA1));
1148 if (req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT))
1149 mdt_set_capainfo(info, 1, rr->rr_fid2,
1150 req_capsule_client_get(pill, &RMF_CAPA2));
1152 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1156 rc = mdt_dlmreq_unpack(info);
1161 static int mdt_unlink_unpack(struct mdt_thread_info *info)
1163 struct lu_ucred *uc = mdt_ucred(info);
1164 struct mdt_rec_unlink *rec;
1165 struct md_attr *ma = &info->mti_attr;
1166 struct lu_attr *attr = &info->mti_attr.ma_attr;
1167 struct mdt_reint_record *rr = &info->mti_rr;
1168 struct req_capsule *pill = info->mti_pill;
1172 CLASSERT(sizeof(struct mdt_rec_unlink) == sizeof(struct mdt_rec_reint));
1173 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1177 /* This prior initialization is needed for old_init_ucred_reint() */
1178 uc->uc_fsuid = rec->ul_fsuid;
1179 uc->uc_fsgid = rec->ul_fsgid;
1180 uc->uc_cap = rec->ul_cap;
1181 uc->uc_suppgids[0] = rec->ul_suppgid1;
1182 uc->uc_suppgids[1] = -1;
1184 attr->la_uid = rec->ul_fsuid;
1185 attr->la_gid = rec->ul_fsgid;
1186 rr->rr_fid1 = &rec->ul_fid1;
1187 rr->rr_fid2 = &rec->ul_fid2;
1188 attr->la_ctime = rec->ul_time;
1189 attr->la_mtime = rec->ul_time;
1190 attr->la_mode = rec->ul_mode;
1191 attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME | LA_MODE;
1193 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1194 mdt_set_capainfo(info, 0, rr->rr_fid1,
1195 req_capsule_client_get(pill, &RMF_CAPA1));
1197 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1201 if (rec->ul_bias & MDS_VTX_BYPASS)
1202 ma->ma_attr_flags |= MDS_VTX_BYPASS;
1204 ma->ma_attr_flags &= ~MDS_VTX_BYPASS;
1206 info->mti_spec.no_create = !!req_is_replay(mdt_info_req(info));
1208 rc = mdt_dlmreq_unpack(info);
1212 static int mdt_rmentry_unpack(struct mdt_thread_info *info)
1214 info->mti_spec.sp_rm_entry = 1;
1215 return mdt_unlink_unpack(info);
1218 static int mdt_rename_unpack(struct mdt_thread_info *info)
1220 struct lu_ucred *uc = mdt_ucred(info);
1221 struct mdt_rec_rename *rec;
1222 struct md_attr *ma = &info->mti_attr;
1223 struct lu_attr *attr = &info->mti_attr.ma_attr;
1224 struct mdt_reint_record *rr = &info->mti_rr;
1225 struct req_capsule *pill = info->mti_pill;
1229 CLASSERT(sizeof(struct mdt_rec_rename) == sizeof(struct mdt_rec_reint));
1230 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1234 /* This prior initialization is needed for old_init_ucred_reint() */
1235 uc->uc_fsuid = rec->rn_fsuid;
1236 uc->uc_fsgid = rec->rn_fsgid;
1237 uc->uc_cap = rec->rn_cap;
1238 uc->uc_suppgids[0] = rec->rn_suppgid1;
1239 uc->uc_suppgids[1] = rec->rn_suppgid2;
1241 attr->la_uid = rec->rn_fsuid;
1242 attr->la_gid = rec->rn_fsgid;
1243 rr->rr_fid1 = &rec->rn_fid1;
1244 rr->rr_fid2 = &rec->rn_fid2;
1245 attr->la_ctime = rec->rn_time;
1246 attr->la_mtime = rec->rn_time;
1247 /* rename_tgt contains the mode already */
1248 attr->la_mode = rec->rn_mode;
1249 attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME | LA_MODE;
1251 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1252 mdt_set_capainfo(info, 0, rr->rr_fid1,
1253 req_capsule_client_get(pill, &RMF_CAPA1));
1254 if (req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT))
1255 mdt_set_capainfo(info, 1, rr->rr_fid2,
1256 req_capsule_client_get(pill, &RMF_CAPA2));
1258 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1262 rc = mdt_name_unpack(pill, &RMF_SYMTGT, &rr->rr_tgt_name, 0);
1266 if (rec->rn_bias & MDS_VTX_BYPASS)
1267 ma->ma_attr_flags |= MDS_VTX_BYPASS;
1269 ma->ma_attr_flags &= ~MDS_VTX_BYPASS;
1271 info->mti_spec.no_create = !!req_is_replay(mdt_info_req(info));
1274 rc = mdt_dlmreq_unpack(info);
1280 * please see comment above LOV_MAGIC_V1_DEF
1282 static void mdt_fix_lov_magic(struct mdt_thread_info *info)
1284 struct mdt_reint_record *rr = &info->mti_rr;
1285 struct lov_user_md_v1 *v1;
1287 v1 = (void *)rr->rr_eadata;
1290 if (unlikely(req_is_replay(mdt_info_req(info)))) {
1291 if (v1->lmm_magic == LOV_USER_MAGIC_V1) {
1292 v1->lmm_magic = LOV_MAGIC_V1_DEF;
1293 } else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V1)) {
1294 v1->lmm_magic = __swab32(LOV_MAGIC_V1_DEF);
1295 } else if (v1->lmm_magic == LOV_USER_MAGIC_V3) {
1296 v1->lmm_magic = LOV_MAGIC_V3_DEF;
1297 } else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V3)) {
1298 v1->lmm_magic = __swab32(LOV_MAGIC_V3_DEF);
1303 static int mdt_open_unpack(struct mdt_thread_info *info)
1305 struct lu_ucred *uc = mdt_ucred(info);
1306 struct mdt_rec_create *rec;
1307 struct lu_attr *attr = &info->mti_attr.ma_attr;
1308 struct req_capsule *pill = info->mti_pill;
1309 struct mdt_reint_record *rr = &info->mti_rr;
1310 struct ptlrpc_request *req = mdt_info_req(info);
1311 struct md_op_spec *sp = &info->mti_spec;
1314 CLASSERT(sizeof(struct mdt_rec_create) == sizeof(struct mdt_rec_reint));
1315 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1319 /* This prior initialization is needed for old_init_ucred_reint() */
1320 uc->uc_fsuid = rec->cr_fsuid;
1321 uc->uc_fsgid = rec->cr_fsgid;
1322 uc->uc_cap = rec->cr_cap;
1323 uc->uc_suppgids[0] = rec->cr_suppgid1;
1324 uc->uc_suppgids[1] = rec->cr_suppgid2;
1325 uc->uc_umask = rec->cr_umask;
1327 rr->rr_fid1 = &rec->cr_fid1;
1328 rr->rr_fid2 = &rec->cr_fid2;
1329 rr->rr_handle = &rec->cr_old_handle;
1330 attr->la_mode = rec->cr_mode;
1331 attr->la_rdev = rec->cr_rdev;
1332 attr->la_uid = rec->cr_fsuid;
1333 attr->la_gid = rec->cr_fsgid;
1334 attr->la_ctime = rec->cr_time;
1335 attr->la_mtime = rec->cr_time;
1336 attr->la_atime = rec->cr_time;
1337 attr->la_valid = LA_MODE | LA_RDEV | LA_UID | LA_GID |
1338 LA_CTIME | LA_MTIME | LA_ATIME;
1339 memset(&info->mti_spec.u, 0, sizeof(info->mti_spec.u));
1340 info->mti_spec.sp_cr_flags = get_mrc_cr_flags(rec);
1341 /* Do not trigger ASSERTION if client miss to set such flags. */
1342 if (unlikely(info->mti_spec.sp_cr_flags == 0))
1344 info->mti_replayepoch = rec->cr_ioepoch;
1346 info->mti_cross_ref = !!(rec->cr_bias & MDS_CROSS_REF);
1348 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1349 mdt_set_capainfo(info, 0, rr->rr_fid1,
1350 req_capsule_client_get(pill, &RMF_CAPA1));
1351 if (req_is_replay(req) &&
1352 req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT)) {
1354 mdt_set_capainfo(info, 1, rr->rr_fid2,
1355 req_capsule_client_get(pill, &RMF_CAPA2));
1358 * FIXME: capa in replay open request might have expired,
1359 * bypass capa check. Security hole?
1361 mdt_set_capainfo(info, 0, rr->rr_fid1, BYPASS_CAPA);
1362 mdt_set_capainfo(info, 1, rr->rr_fid2, BYPASS_CAPA);
1366 mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, MNF_FIX_ANON);
1368 if (req_capsule_field_present(pill, &RMF_EADATA, RCL_CLIENT)) {
1369 rr->rr_eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
1371 if (rr->rr_eadatalen > 0) {
1372 rr->rr_eadata = req_capsule_client_get(pill,
1374 sp->u.sp_ea.eadatalen = rr->rr_eadatalen;
1375 sp->u.sp_ea.eadata = rr->rr_eadata;
1376 sp->no_create = !!req_is_replay(req);
1377 mdt_fix_lov_magic(info);
1381 * Client default md_size may be 0 right after client start,
1382 * until all osc are connected, set here just some reasonable
1383 * value to prevent misbehavior.
1385 if (rr->rr_eadatalen == 0 &&
1386 !(info->mti_spec.sp_cr_flags & MDS_OPEN_DELAY_CREATE))
1387 rr->rr_eadatalen = MIN_MD_SIZE;
1393 static int mdt_setxattr_unpack(struct mdt_thread_info *info)
1395 struct mdt_reint_record *rr = &info->mti_rr;
1396 struct lu_ucred *uc = mdt_ucred(info);
1397 struct lu_attr *attr = &info->mti_attr.ma_attr;
1398 struct req_capsule *pill = info->mti_pill;
1399 struct mdt_rec_setxattr *rec;
1404 CLASSERT(sizeof(struct mdt_rec_setxattr) ==
1405 sizeof(struct mdt_rec_reint));
1407 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1411 /* This prior initialization is needed for old_init_ucred_reint() */
1412 uc->uc_fsuid = rec->sx_fsuid;
1413 uc->uc_fsgid = rec->sx_fsgid;
1414 uc->uc_cap = rec->sx_cap;
1415 uc->uc_suppgids[0] = rec->sx_suppgid1;
1416 uc->uc_suppgids[1] = -1;
1418 rr->rr_opcode = rec->sx_opcode;
1419 rr->rr_fid1 = &rec->sx_fid;
1420 attr->la_valid = rec->sx_valid;
1421 attr->la_ctime = rec->sx_time;
1422 attr->la_size = rec->sx_size;
1423 attr->la_flags = rec->sx_flags;
1425 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1426 mdt_set_capainfo(info, 0, rr->rr_fid1,
1427 req_capsule_client_get(pill, &RMF_CAPA1));
1429 mdt_set_capainfo(info, 0, rr->rr_fid1, BYPASS_CAPA);
1431 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1435 if (req_capsule_field_present(pill, &RMF_EADATA, RCL_CLIENT)) {
1436 rr->rr_eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
1438 if (rr->rr_eadatalen > 0) {
1439 rr->rr_eadata = req_capsule_client_get(pill,
1441 if (rr->rr_eadata == NULL)
1444 rr->rr_eadata = NULL;
1446 } else if (!(attr->la_valid & OBD_MD_FLXATTRRM)) {
1447 CDEBUG(D_INFO, "no xattr data supplied\n");
1451 if (mdt_dlmreq_unpack(info) < 0)
1458 typedef int (*reint_unpacker)(struct mdt_thread_info *info);
1460 static reint_unpacker mdt_reint_unpackers[REINT_MAX] = {
1461 [REINT_SETATTR] = mdt_setattr_unpack,
1462 [REINT_CREATE] = mdt_create_unpack,
1463 [REINT_LINK] = mdt_link_unpack,
1464 [REINT_UNLINK] = mdt_unlink_unpack,
1465 [REINT_RENAME] = mdt_rename_unpack,
1466 [REINT_OPEN] = mdt_open_unpack,
1467 [REINT_SETXATTR] = mdt_setxattr_unpack,
1468 [REINT_RMENTRY] = mdt_rmentry_unpack,
1469 [REINT_MIGRATE] = mdt_rename_unpack,
1472 int mdt_reint_unpack(struct mdt_thread_info *info, __u32 op)
1477 memset(&info->mti_rr, 0, sizeof(info->mti_rr));
1478 if (op < REINT_MAX && mdt_reint_unpackers[op] != NULL) {
1479 info->mti_rr.rr_opcode = op;
1480 rc = mdt_reint_unpackers[op](info);
1482 CERROR("Unexpected opcode %d\n", op);