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 (!uid_valid(make_kuid(&init_user_ns, req->rq_auth_mapped_uid))) {
165 CDEBUG(D_SEC, "remote user not mapped, deny access!\n");
166 CDEBUG(D_SEC, "remote user not mapped, deny access!\n");
170 if (ptlrpc_user_desc_do_idmap(req, pud))
173 if (req->rq_auth_mapped_uid != pud->pud_uid) {
174 CDEBUG(D_SEC, "remote client %s: auth/mapped uid %u/%u "
175 "while client claims %u:%u/%u:%u\n",
176 libcfs_nid2str(peernid), req->rq_auth_uid,
177 req->rq_auth_mapped_uid,
178 pud->pud_uid, pud->pud_gid,
179 pud->pud_fsuid, pud->pud_fsgid);
183 if (req->rq_auth_uid != pud->pud_uid) {
184 CDEBUG(D_SEC, "local client %s: auth uid %u "
185 "while client claims %u:%u/%u:%u\n",
186 libcfs_nid2str(peernid), req->rq_auth_uid,
187 pud->pud_uid, pud->pud_gid,
188 pud->pud_fsuid, pud->pud_fsgid);
193 if (is_identity_get_disabled(mdt->mdt_identity_cache)) {
195 CDEBUG(D_SEC, "remote client must run with identity_get "
199 ucred->uc_identity = NULL;
200 perm = CFS_SETUID_PERM | CFS_SETGID_PERM |
204 struct md_identity *identity;
206 identity = mdt_identity_get(mdt->mdt_identity_cache,
208 if (IS_ERR(identity)) {
209 if (unlikely(PTR_ERR(identity) == -EREMCHG &&
211 ucred->uc_identity = NULL;
212 perm = CFS_SETUID_PERM | CFS_SETGID_PERM |
215 CDEBUG(D_SEC, "Deny access without identity: uid %u\n",
220 ucred->uc_identity = identity;
221 perm = mdt_identity_get_perm(ucred->uc_identity,
226 /* find out the setuid/setgid attempt */
227 setuid = (pud->pud_uid != pud->pud_fsuid);
228 setgid = ((pud->pud_gid != pud->pud_fsgid) ||
229 (ucred->uc_identity &&
230 (pud->pud_gid != ucred->uc_identity->mi_gid)));
232 /* check permission of setuid */
233 if (setuid && !(perm & CFS_SETUID_PERM)) {
234 CDEBUG(D_SEC, "mdt blocked setuid attempt (%u -> %u) from %s\n",
235 pud->pud_uid, pud->pud_fsuid, libcfs_nid2str(peernid));
236 GOTO(out, rc = -EACCES);
239 /* check permission of setgid */
240 if (setgid && !(perm & CFS_SETGID_PERM)) {
241 CDEBUG(D_SEC, "mdt blocked setgid attempt (%u:%u/%u:%u -> %u) "
242 "from %s\n", pud->pud_uid, pud->pud_gid,
243 pud->pud_fsuid, pud->pud_fsgid,
244 ucred->uc_identity->mi_gid, libcfs_nid2str(peernid));
245 GOTO(out, rc = -EACCES);
249 * NB: remote client not allowed to setgroups anyway.
251 if (!remote && perm & CFS_SETGRP_PERM) {
252 if (pud->pud_ngroups) {
253 /* setgroups for local client */
254 ucred->uc_ginfo = groups_alloc(pud->pud_ngroups);
255 if (!ucred->uc_ginfo) {
256 CERROR("failed to alloc %d groups\n",
258 GOTO(out, rc = -ENOMEM);
261 lustre_groups_from_list(ucred->uc_ginfo,
263 lustre_groups_sort(ucred->uc_ginfo);
265 ucred->uc_ginfo = NULL;
268 ucred->uc_suppgids[0] = -1;
269 ucred->uc_suppgids[1] = -1;
270 ucred->uc_ginfo = NULL;
273 ucred->uc_uid = pud->pud_uid;
274 ucred->uc_gid = pud->pud_gid;
275 ucred->uc_fsuid = pud->pud_fsuid;
276 ucred->uc_fsgid = pud->pud_fsgid;
278 /* process root_squash here. */
279 mdt_root_squash(info, peernid);
281 /* remove fs privilege for non-root user. */
283 ucred->uc_cap = pud->pud_cap & ~CFS_CAP_FS_MASK;
285 ucred->uc_cap = pud->pud_cap;
286 if (remote && !(perm & CFS_RMTOWN_PERM))
287 ucred->uc_cap &= ~(CFS_CAP_SYS_RESOURCE_MASK |
289 ucred->uc_valid = UCRED_NEW;
295 if (ucred->uc_ginfo) {
296 put_group_info(ucred->uc_ginfo);
297 ucred->uc_ginfo = NULL;
299 if (ucred->uc_identity) {
300 mdt_identity_put(mdt->mdt_identity_cache,
302 ucred->uc_identity = NULL;
309 int mdt_check_ucred(struct mdt_thread_info *info)
311 struct ptlrpc_request *req = mdt_info_req(info);
312 struct mdt_device *mdt = info->mti_mdt;
313 struct ptlrpc_user_desc *pud = req->rq_user_desc;
314 struct lu_ucred *ucred = mdt_ucred(info);
315 struct md_identity *identity = NULL;
316 lnet_nid_t peernid = req->rq_peer.nid;
318 __u32 remote = exp_connect_rmtclient(info->mti_exp);
325 LASSERT(ucred != NULL);
326 if ((ucred->uc_valid == UCRED_OLD) || (ucred->uc_valid == UCRED_NEW))
329 if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
332 /* sanity check: if we use strong authentication, we expect the
333 * uid which client claimed is true */
335 if (!uid_valid(make_kuid(&init_user_ns, req->rq_auth_mapped_uid))) {
336 CDEBUG(D_SEC, "remote user not mapped, deny access!\n");
340 if (ptlrpc_user_desc_do_idmap(req, pud))
343 if (req->rq_auth_mapped_uid != pud->pud_uid) {
344 CDEBUG(D_SEC, "remote client %s: auth/mapped uid %u/%u "
345 "while client claims %u:%u/%u:%u\n",
346 libcfs_nid2str(peernid), req->rq_auth_uid,
347 req->rq_auth_mapped_uid,
348 pud->pud_uid, pud->pud_gid,
349 pud->pud_fsuid, pud->pud_fsgid);
353 if (req->rq_auth_uid != pud->pud_uid) {
354 CDEBUG(D_SEC, "local client %s: auth uid %u "
355 "while client claims %u:%u/%u:%u\n",
356 libcfs_nid2str(peernid), req->rq_auth_uid,
357 pud->pud_uid, pud->pud_gid,
358 pud->pud_fsuid, pud->pud_fsgid);
363 if (is_identity_get_disabled(mdt->mdt_identity_cache)) {
365 CDEBUG(D_SEC, "remote client must run with identity_get "
372 identity = mdt_identity_get(mdt->mdt_identity_cache, pud->pud_uid);
373 if (IS_ERR(identity)) {
374 if (unlikely(PTR_ERR(identity) == -EREMCHG &&
378 CDEBUG(D_SEC, "Deny access without identity: uid %u\n",
384 perm = mdt_identity_get_perm(identity, remote, peernid);
385 /* find out the setuid/setgid attempt */
386 setuid = (pud->pud_uid != pud->pud_fsuid);
387 setgid = (pud->pud_gid != pud->pud_fsgid ||
388 pud->pud_gid != identity->mi_gid);
390 /* check permission of setuid */
391 if (setuid && !(perm & CFS_SETUID_PERM)) {
392 CDEBUG(D_SEC, "mdt blocked setuid attempt (%u -> %u) from %s\n",
393 pud->pud_uid, pud->pud_fsuid, libcfs_nid2str(peernid));
394 GOTO(out, rc = -EACCES);
397 /* check permission of setgid */
398 if (setgid && !(perm & CFS_SETGID_PERM)) {
399 CDEBUG(D_SEC, "mdt blocked setgid attempt (%u:%u/%u:%u -> %u) "
400 "from %s\n", pud->pud_uid, pud->pud_gid,
401 pud->pud_fsuid, pud->pud_fsgid, identity->mi_gid,
402 libcfs_nid2str(peernid));
403 GOTO(out, rc = -EACCES);
409 mdt_identity_put(mdt->mdt_identity_cache, identity);
413 static int old_init_ucred(struct mdt_thread_info *info,
414 struct mdt_body *body)
416 struct lu_ucred *uc = mdt_ucred(info);
417 struct mdt_device *mdt = info->mti_mdt;
418 struct md_identity *identity = NULL;
423 uc->uc_valid = UCRED_INVALID;
424 uc->uc_o_uid = uc->uc_uid = body->uid;
425 uc->uc_o_gid = uc->uc_gid = body->gid;
426 uc->uc_o_fsuid = uc->uc_fsuid = body->fsuid;
427 uc->uc_o_fsgid = uc->uc_fsgid = body->fsgid;
428 uc->uc_suppgids[0] = body->suppgid;
429 uc->uc_suppgids[1] = -1;
431 if (!is_identity_get_disabled(mdt->mdt_identity_cache)) {
432 identity = mdt_identity_get(mdt->mdt_identity_cache,
434 if (IS_ERR(identity)) {
435 if (unlikely(PTR_ERR(identity) == -EREMCHG)) {
438 CDEBUG(D_SEC, "Deny access without identity: "
439 "uid %u\n", uc->uc_fsuid);
444 uc->uc_identity = identity;
446 /* process root_squash here. */
447 mdt_root_squash(info, mdt_info_req(info)->rq_peer.nid);
449 /* remove fs privilege for non-root user. */
451 uc->uc_cap = body->capability & ~CFS_CAP_FS_MASK;
453 uc->uc_cap = body->capability;
454 uc->uc_valid = UCRED_OLD;
459 static int old_init_ucred_reint(struct mdt_thread_info *info)
461 struct lu_ucred *uc = mdt_ucred(info);
462 struct mdt_device *mdt = info->mti_mdt;
463 struct md_identity *identity = NULL;
468 uc->uc_valid = UCRED_INVALID;
469 uc->uc_o_uid = uc->uc_o_fsuid = uc->uc_uid = uc->uc_fsuid;
470 uc->uc_o_gid = uc->uc_o_fsgid = uc->uc_gid = uc->uc_fsgid;
472 if (!is_identity_get_disabled(mdt->mdt_identity_cache)) {
473 identity = mdt_identity_get(mdt->mdt_identity_cache,
475 if (IS_ERR(identity)) {
476 if (unlikely(PTR_ERR(identity) == -EREMCHG)) {
479 CDEBUG(D_SEC, "Deny access without identity: "
480 "uid %u\n", uc->uc_fsuid);
485 uc->uc_identity = identity;
487 /* process root_squash here. */
488 mdt_root_squash(info, mdt_info_req(info)->rq_peer.nid);
490 /* remove fs privilege for non-root user. */
492 uc->uc_cap &= ~CFS_CAP_FS_MASK;
493 uc->uc_valid = UCRED_OLD;
498 int mdt_init_ucred(struct mdt_thread_info *info, struct mdt_body *body)
500 struct ptlrpc_request *req = mdt_info_req(info);
501 struct lu_ucred *uc = mdt_ucred(info);
504 if ((uc->uc_valid == UCRED_OLD) || (uc->uc_valid == UCRED_NEW))
507 mdt_exit_ucred(info);
509 if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
510 return old_init_ucred(info, body);
512 return new_init_ucred(info, BODY_INIT, body);
515 int mdt_init_ucred_reint(struct mdt_thread_info *info)
517 struct ptlrpc_request *req = mdt_info_req(info);
518 struct lu_ucred *uc = mdt_ucred(info);
521 if ((uc->uc_valid == UCRED_OLD) || (uc->uc_valid == UCRED_NEW))
524 mdt_exit_ucred(info);
526 if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
527 return old_init_ucred_reint(info);
529 return new_init_ucred(info, REC_INIT, NULL);
532 /* copied from lov/lov_ea.c, just for debugging, will be removed later */
533 void mdt_dump_lmm(int level, const struct lov_mds_md *lmm, __u64 valid)
535 const struct lov_ost_data_v1 *lod;
539 if (likely(!cfs_cdebug_show(level, DEBUG_SUBSYSTEM)))
542 count = le16_to_cpu(((struct lov_user_md *)lmm)->lmm_stripe_count);
544 CDEBUG(level, "objid "DOSTID", magic 0x%08X, pattern %#X\n",
545 POSTID(&lmm->lmm_oi), le32_to_cpu(lmm->lmm_magic),
546 le32_to_cpu(lmm->lmm_pattern));
547 CDEBUG(level, "stripe_size=0x%x, stripe_count=0x%x\n",
548 le32_to_cpu(lmm->lmm_stripe_size), count);
550 /* If it's a directory or a released file, then there are
551 * no actual objects to print, so bail out. */
552 if (valid & OBD_MD_FLDIREA ||
553 le32_to_cpu(lmm->lmm_pattern) & LOV_PATTERN_F_RELEASED)
556 LASSERT(count <= LOV_MAX_STRIPE_COUNT);
557 for (i = 0, lod = lmm->lmm_objects; i < count; i++, lod++) {
560 ostid_le_to_cpu(&lod->l_ost_oi, &oi);
561 CDEBUG(level, "stripe %u idx %u subobj "DOSTID"\n",
562 i, le32_to_cpu(lod->l_ost_idx), POSTID(&oi));
566 void mdt_dump_lmv(unsigned int level, const union lmv_mds_md *lmv)
568 const struct lmv_mds_md_v1 *lmm1;
571 if (likely(!cfs_cdebug_show(level, DEBUG_SUBSYSTEM)))
574 lmm1 = &lmv->lmv_md_v1;
575 CDEBUG(level, "magic 0x%08X, master %#X stripe_count %#x\n",
576 le32_to_cpu(lmm1->lmv_magic),
577 le32_to_cpu(lmm1->lmv_master_mdt_index),
578 le32_to_cpu(lmm1->lmv_stripe_count));
579 for (i = 0; i < le32_to_cpu(lmm1->lmv_stripe_count); i++) {
582 fid_le_to_cpu(&fid, &lmm1->lmv_stripe_fids[i]);
583 CDEBUG(level, "idx %u subobj "DFID"\n", i, PFID(&fid));
587 /* Shrink and/or grow reply buffers */
588 int mdt_fix_reply(struct mdt_thread_info *info)
590 struct req_capsule *pill = info->mti_pill;
591 struct mdt_body *body;
592 int md_size, md_packed = 0;
597 body = req_capsule_server_get(pill, &RMF_MDT_BODY);
598 LASSERT(body != NULL);
600 if (body->valid & (OBD_MD_FLDIREA | OBD_MD_FLEASIZE | OBD_MD_LINKNAME))
601 md_size = body->eadatasize;
605 acl_size = body->aclsize;
607 /* this replay - not send info to client */
608 if (info->mti_spec.no_create) {
613 CDEBUG(D_INFO, "Shrink to md_size = %d cookie/acl_size = %d"
614 " MDSCAPA = %llx, OSSCAPA = %llx\n",
616 (unsigned long long)(body->valid & OBD_MD_FLMDSCAPA),
617 (unsigned long long)(body->valid & OBD_MD_FLOSSCAPA));
621 &RMF_ACL, or &RMF_LOGCOOKIES
622 (optional) &RMF_CAPA1,
623 (optional) &RMF_CAPA2,
624 (optional) something else
627 /* MDT_MD buffer may be bigger than packed value, let's shrink all
628 * buffers before growing it */
629 if (info->mti_big_lmm_used) {
630 LASSERT(req_capsule_has_field(pill, &RMF_MDT_MD, RCL_SERVER));
631 md_packed = req_capsule_get_size(pill, &RMF_MDT_MD,
633 LASSERT(md_packed > 0);
634 /* buffer must be allocated separately */
635 LASSERT(info->mti_attr.ma_lmm !=
636 req_capsule_server_get(pill, &RMF_MDT_MD));
637 req_capsule_shrink(pill, &RMF_MDT_MD, 0, RCL_SERVER);
638 /* free big lmm if md_size is not needed */
640 info->mti_big_lmm_used = 0;
641 } else if (req_capsule_has_field(pill, &RMF_MDT_MD, RCL_SERVER)) {
642 req_capsule_shrink(pill, &RMF_MDT_MD, md_size, RCL_SERVER);
645 if (req_capsule_has_field(pill, &RMF_ACL, RCL_SERVER))
646 req_capsule_shrink(pill, &RMF_ACL, acl_size, RCL_SERVER);
647 else if (req_capsule_has_field(pill, &RMF_LOGCOOKIES, RCL_SERVER))
648 req_capsule_shrink(pill, &RMF_LOGCOOKIES,
649 acl_size, RCL_SERVER);
651 if (req_capsule_has_field(pill, &RMF_CAPA1, RCL_SERVER) &&
652 !(body->valid & OBD_MD_FLMDSCAPA))
653 req_capsule_shrink(pill, &RMF_CAPA1, 0, RCL_SERVER);
655 if (req_capsule_has_field(pill, &RMF_CAPA2, RCL_SERVER) &&
656 !(body->valid & OBD_MD_FLOSSCAPA))
657 req_capsule_shrink(pill, &RMF_CAPA2, 0, RCL_SERVER);
660 * Some more field should be shrinked if needed.
661 * This should be done by those who added fields to reply message.
664 /* Grow MD buffer if needed finally */
665 if (info->mti_big_lmm_used) {
668 LASSERT(md_size > md_packed);
669 CDEBUG(D_INFO, "Enlarge reply buffer, need extra %d bytes\n",
670 md_size - md_packed);
671 rc = req_capsule_server_grow(pill, &RMF_MDT_MD, md_size);
673 /* we can't answer with proper LOV EA, drop flags,
674 * the rc is also returned so this request is
675 * considered as failed */
676 body->valid &= ~(OBD_MD_FLDIREA | OBD_MD_FLEASIZE);
677 /* don't return transno along with error */
678 lustre_msg_set_transno(pill->rc_req->rq_repmsg, 0);
680 /* now we need to pack right LOV/LMV EA */
681 lmm = req_capsule_server_get(pill, &RMF_MDT_MD);
682 if (info->mti_attr.ma_valid & MA_LOV) {
683 LASSERT(req_capsule_get_size(pill, &RMF_MDT_MD,
685 info->mti_attr.ma_lmm_size);
686 memcpy(lmm, info->mti_attr.ma_lmm,
687 info->mti_attr.ma_lmm_size);
688 } else if (info->mti_attr.ma_valid & MA_LMV) {
689 LASSERT(req_capsule_get_size(pill, &RMF_MDT_MD,
691 info->mti_attr.ma_lmv_size);
692 memcpy(lmm, info->mti_attr.ma_lmv,
693 info->mti_attr.ma_lmv_size);
696 /* update mdt_max_mdsize so clients will be aware about that */
697 if (info->mti_mdt->mdt_max_mdsize < info->mti_attr.ma_lmm_size)
698 info->mti_mdt->mdt_max_mdsize =
699 info->mti_attr.ma_lmm_size;
700 info->mti_big_lmm_used = 0;
706 /* if object is dying, pack the lov/llog data,
707 * parameter info->mti_attr should be valid at this point! */
708 int mdt_handle_last_unlink(struct mdt_thread_info *info, struct mdt_object *mo,
709 const struct md_attr *ma)
711 struct mdt_body *repbody;
712 const struct lu_attr *la = &ma->ma_attr;
716 repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
717 LASSERT(repbody != NULL);
719 if (ma->ma_valid & MA_INODE)
720 mdt_pack_attr2body(info, repbody, la, mdt_object_fid(mo));
722 if (ma->ma_valid & MA_LOV) {
723 CERROR("No need in LOV EA upon unlink\n");
726 repbody->eadatasize = 0;
728 if (ma->ma_cookie_size && (ma->ma_valid & MA_COOKIE)) {
729 repbody->aclsize = ma->ma_cookie_size;
730 repbody->valid |= OBD_MD_FLCOOKIE;
733 if (info->mti_mdt->mdt_lut.lut_oss_capa &&
734 exp_connect_flags(info->mti_exp) & OBD_CONNECT_OSS_CAPA &&
735 repbody->valid & OBD_MD_FLEASIZE) {
736 struct lustre_capa *capa;
738 capa = req_capsule_server_get(info->mti_pill, &RMF_CAPA2);
740 capa->lc_opc = CAPA_OPC_OSS_DESTROY;
741 rc = mo_capa_get(info->mti_env, mdt_object_child(mo), capa, 0);
745 repbody->valid |= OBD_MD_FLOSSCAPA;
751 static __u64 mdt_attr_valid_xlate(__u64 in, struct mdt_reint_record *rr,
757 if (in & MDS_ATTR_MODE)
759 if (in & MDS_ATTR_UID)
761 if (in & MDS_ATTR_GID)
763 if (in & MDS_ATTR_SIZE)
765 if (in & MDS_ATTR_BLOCKS)
767 if (in & MDS_ATTR_ATIME_SET)
769 if (in & MDS_ATTR_CTIME_SET)
771 if (in & MDS_ATTR_MTIME_SET)
773 if (in & MDS_ATTR_ATTR_FLAG)
775 if (in & MDS_ATTR_KILL_SUID)
777 if (in & MDS_ATTR_KILL_SGID)
780 if (in & MDS_ATTR_FROM_OPEN)
781 rr->rr_flags |= MRF_OPEN_TRUNC;
782 if (in & MDS_OPEN_OWNEROVERRIDE)
783 ma->ma_attr_flags |= MDS_OWNEROVERRIDE;
784 if (in & MDS_ATTR_FORCE)
785 ma->ma_attr_flags |= MDS_PERM_BYPASS;
787 in &= ~(MDS_ATTR_MODE | MDS_ATTR_UID | MDS_ATTR_GID |
788 MDS_ATTR_ATIME | MDS_ATTR_MTIME | MDS_ATTR_CTIME |
789 MDS_ATTR_ATIME_SET | MDS_ATTR_CTIME_SET | MDS_ATTR_MTIME_SET |
790 MDS_ATTR_SIZE | MDS_ATTR_BLOCKS | MDS_ATTR_ATTR_FLAG |
791 MDS_ATTR_FORCE | MDS_ATTR_KILL_SUID | MDS_ATTR_KILL_SGID |
792 MDS_ATTR_FROM_OPEN | MDS_OPEN_OWNEROVERRIDE);
794 CERROR("Unknown attr bits: "LPX64"\n", in);
798 void mdt_set_capainfo(struct mdt_thread_info *info, int offset,
799 const struct lu_fid *fid, struct lustre_capa *capa)
801 struct lu_capainfo *lci;
803 LASSERT(offset >= 0 && offset < LU_CAPAINFO_MAX);
804 if (!info->mti_mdt->mdt_lut.lut_mds_capa ||
805 !(exp_connect_flags(info->mti_exp) & OBD_CONNECT_MDS_CAPA))
808 lci = lu_capainfo_get(info->mti_env);
810 lci->lci_fid[offset] = *fid;
811 lci->lci_capa[offset] = capa;
815 void mdt_dump_capainfo(struct mdt_thread_info *info)
817 struct lu_capainfo *lci = lu_capainfo_get(info->mti_env);
823 for (i = 0; i < LU_CAPAINFO_MAX; i++) {
824 if (lci->lci_capa[i] == NULL) {
825 CERROR("no capa for index %d "DFID"\n",
826 i, PFID(&lci->lci_fid[i]));
829 if (lci->lci_capa[i] == BYPASS_CAPA) {
830 CERROR("bypass for index %d "DFID"\n",
831 i, PFID(&lci->lci_fid[i]));
834 DEBUG_CAPA(D_ERROR, lci->lci_capa[i], "index %d", i);
837 #endif /* DEBUG_CAPA */
841 int mdt_name_unpack(struct req_capsule *pill,
842 const struct req_msg_field *field,
844 enum mdt_name_flags flags)
846 ln->ln_name = req_capsule_client_get(pill, field);
847 ln->ln_namelen = req_capsule_get_size(pill, field, RCL_CLIENT) - 1;
849 if (!lu_name_is_valid(ln)) {
856 if ((flags & MNF_FIX_ANON) &&
857 ln->ln_namelen == 1 && ln->ln_name[0] == '/') {
858 /* Newer (3.x) kernels use a name of "/" for the
859 * "anonymous" disconnected dentries from NFS
860 * filehandle conversion. See d_obtain_alias(). */
868 static int mdt_setattr_unpack_rec(struct mdt_thread_info *info)
870 struct lu_ucred *uc = mdt_ucred(info);
871 struct md_attr *ma = &info->mti_attr;
872 struct lu_attr *la = &ma->ma_attr;
873 struct req_capsule *pill = info->mti_pill;
874 struct mdt_reint_record *rr = &info->mti_rr;
875 struct mdt_rec_setattr *rec;
878 CLASSERT(sizeof(struct mdt_rec_setattr)== sizeof(struct mdt_rec_reint));
879 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
883 /* This prior initialization is needed for old_init_ucred_reint() */
884 uc->uc_fsuid = rec->sa_fsuid;
885 uc->uc_fsgid = rec->sa_fsgid;
886 uc->uc_cap = rec->sa_cap;
887 uc->uc_suppgids[0] = rec->sa_suppgid;
888 uc->uc_suppgids[1] = -1;
890 rr->rr_fid1 = &rec->sa_fid;
891 la->la_valid = mdt_attr_valid_xlate(rec->sa_valid, rr, ma);
892 /* If MDS_ATTR_xTIME is set without MDS_ATTR_xTIME_SET and
893 * the client does not have OBD_CONNECT_FULL20, convert it
894 * to LA_xTIME. LU-3036 */
895 if (!(exp_connect_flags(info->mti_exp) & OBD_CONNECT_FULL20)) {
896 if (!(rec->sa_valid & MDS_ATTR_ATIME_SET) &&
897 (rec->sa_valid & MDS_ATTR_ATIME))
898 la->la_valid |= LA_ATIME;
899 if (!(rec->sa_valid & MDS_ATTR_MTIME_SET) &&
900 (rec->sa_valid & MDS_ATTR_MTIME))
901 la->la_valid |= LA_MTIME;
902 if (!(rec->sa_valid & MDS_ATTR_CTIME_SET) &&
903 (rec->sa_valid & MDS_ATTR_CTIME))
904 la->la_valid |= LA_CTIME;
906 la->la_mode = rec->sa_mode;
907 la->la_flags = rec->sa_attr_flags;
908 la->la_uid = rec->sa_uid;
909 la->la_gid = rec->sa_gid;
910 la->la_size = rec->sa_size;
911 la->la_blocks = rec->sa_blocks;
912 la->la_ctime = rec->sa_ctime;
913 la->la_atime = rec->sa_atime;
914 la->la_mtime = rec->sa_mtime;
915 ma->ma_valid = MA_INODE;
917 if (rec->sa_bias & MDS_DATA_MODIFIED)
918 ma->ma_attr_flags |= MDS_DATA_MODIFIED;
920 ma->ma_attr_flags &= ~MDS_DATA_MODIFIED;
922 if (rec->sa_bias & MDS_HSM_RELEASE)
923 ma->ma_attr_flags |= MDS_HSM_RELEASE;
925 ma->ma_attr_flags &= ~MDS_HSM_RELEASE;
927 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
928 mdt_set_capainfo(info, 0, rr->rr_fid1,
929 req_capsule_client_get(pill, &RMF_CAPA1));
934 static int mdt_ioepoch_unpack(struct mdt_thread_info *info)
936 struct req_capsule *pill = info->mti_pill;
939 if (req_capsule_get_size(pill, &RMF_MDT_EPOCH, RCL_CLIENT))
941 req_capsule_client_get(pill, &RMF_MDT_EPOCH);
943 info->mti_ioepoch = NULL;
944 RETURN(info->mti_ioepoch == NULL ? -EFAULT : 0);
947 static inline int mdt_dlmreq_unpack(struct mdt_thread_info *info) {
948 struct req_capsule *pill = info->mti_pill;
950 if (req_capsule_get_size(pill, &RMF_DLM_REQ, RCL_CLIENT)) {
951 info->mti_dlm_req = req_capsule_client_get(pill, &RMF_DLM_REQ);
952 if (info->mti_dlm_req == NULL)
959 static int mdt_setattr_unpack(struct mdt_thread_info *info)
961 struct mdt_reint_record *rr = &info->mti_rr;
962 struct md_attr *ma = &info->mti_attr;
963 struct req_capsule *pill = info->mti_pill;
967 rc = mdt_setattr_unpack_rec(info);
971 /* Epoch may be absent */
972 mdt_ioepoch_unpack(info);
974 if (req_capsule_field_present(pill, &RMF_EADATA, RCL_CLIENT)) {
975 rr->rr_eadata = req_capsule_client_get(pill, &RMF_EADATA);
976 rr->rr_eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
978 if (rr->rr_eadatalen > 0) {
979 const struct lmv_user_md *lum;
982 /* Sigh ma_valid(from req) does not indicate whether
983 * it will set LOV/LMV EA, so we have to check magic */
984 if (le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC) {
985 ma->ma_valid |= MA_LMV;
986 ma->ma_lmv = (void *)rr->rr_eadata;
987 ma->ma_lmv_size = rr->rr_eadatalen;
989 ma->ma_valid |= MA_LOV;
990 ma->ma_lmm = (void *)rr->rr_eadata;
991 ma->ma_lmm_size = rr->rr_eadatalen;
996 rc = mdt_dlmreq_unpack(info);
1000 static int mdt_hsm_release_unpack(struct mdt_thread_info *info)
1002 struct md_attr *ma = &info->mti_attr;
1003 struct req_capsule *pill = info->mti_pill;
1006 if (!(ma->ma_attr_flags & MDS_HSM_RELEASE))
1009 req_capsule_extend(pill, &RQF_MDS_RELEASE_CLOSE);
1011 if (!(req_capsule_has_field(pill, &RMF_CLOSE_DATA, RCL_CLIENT) &&
1012 req_capsule_field_present(pill, &RMF_CLOSE_DATA, RCL_CLIENT)))
1018 int mdt_close_unpack(struct mdt_thread_info *info)
1023 rc = mdt_ioepoch_unpack(info);
1027 rc = mdt_setattr_unpack_rec(info);
1031 rc = mdt_hsm_release_unpack(info);
1035 RETURN(mdt_init_ucred_reint(info));
1038 static int mdt_create_unpack(struct mdt_thread_info *info)
1040 struct lu_ucred *uc = mdt_ucred(info);
1041 struct mdt_rec_create *rec;
1042 struct lu_attr *attr = &info->mti_attr.ma_attr;
1043 struct mdt_reint_record *rr = &info->mti_rr;
1044 struct req_capsule *pill = info->mti_pill;
1045 struct md_op_spec *sp = &info->mti_spec;
1049 CLASSERT(sizeof(struct mdt_rec_create) == sizeof(struct mdt_rec_reint));
1050 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1054 /* This prior initialization is needed for old_init_ucred_reint() */
1055 uc->uc_fsuid = rec->cr_fsuid;
1056 uc->uc_fsgid = rec->cr_fsgid;
1057 uc->uc_cap = rec->cr_cap;
1058 uc->uc_suppgids[0] = rec->cr_suppgid1;
1059 uc->uc_suppgids[1] = -1;
1060 uc->uc_umask = rec->cr_umask;
1062 rr->rr_fid1 = &rec->cr_fid1;
1063 rr->rr_fid2 = &rec->cr_fid2;
1064 attr->la_mode = rec->cr_mode;
1065 attr->la_rdev = rec->cr_rdev;
1066 attr->la_uid = rec->cr_fsuid;
1067 attr->la_gid = rec->cr_fsgid;
1068 attr->la_ctime = rec->cr_time;
1069 attr->la_mtime = rec->cr_time;
1070 attr->la_atime = rec->cr_time;
1071 attr->la_valid = LA_MODE | LA_RDEV | LA_UID | LA_GID | LA_TYPE |
1072 LA_CTIME | LA_MTIME | LA_ATIME;
1073 memset(&sp->u, 0, sizeof(sp->u));
1074 sp->sp_cr_flags = get_mrc_cr_flags(rec);
1076 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1077 mdt_set_capainfo(info, 0, rr->rr_fid1,
1078 req_capsule_client_get(pill, &RMF_CAPA1));
1079 mdt_set_capainfo(info, 1, rr->rr_fid2, BYPASS_CAPA);
1081 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1085 if (S_ISLNK(attr->la_mode)) {
1086 const char *tgt = NULL;
1088 req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_SYM);
1089 if (req_capsule_get_size(pill, &RMF_SYMTGT, RCL_CLIENT)) {
1090 tgt = req_capsule_client_get(pill, &RMF_SYMTGT);
1091 sp->u.sp_symname = tgt;
1096 req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_RMT_ACL);
1097 if (S_ISDIR(attr->la_mode) &&
1098 req_capsule_get_size(pill, &RMF_EADATA, RCL_CLIENT) > 0) {
1099 sp->u.sp_ea.eadata =
1100 req_capsule_client_get(pill, &RMF_EADATA);
1101 sp->u.sp_ea.eadatalen =
1102 req_capsule_get_size(pill, &RMF_EADATA,
1104 sp->sp_cr_flags |= MDS_OPEN_HAS_EA;
1108 rc = mdt_dlmreq_unpack(info);
1112 static int mdt_link_unpack(struct mdt_thread_info *info)
1114 struct lu_ucred *uc = mdt_ucred(info);
1115 struct mdt_rec_link *rec;
1116 struct lu_attr *attr = &info->mti_attr.ma_attr;
1117 struct mdt_reint_record *rr = &info->mti_rr;
1118 struct req_capsule *pill = info->mti_pill;
1122 CLASSERT(sizeof(struct mdt_rec_link) == sizeof(struct mdt_rec_reint));
1123 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1127 /* This prior initialization is needed for old_init_ucred_reint() */
1128 uc->uc_fsuid = rec->lk_fsuid;
1129 uc->uc_fsgid = rec->lk_fsgid;
1130 uc->uc_cap = rec->lk_cap;
1131 uc->uc_suppgids[0] = rec->lk_suppgid1;
1132 uc->uc_suppgids[1] = rec->lk_suppgid2;
1134 attr->la_uid = rec->lk_fsuid;
1135 attr->la_gid = rec->lk_fsgid;
1136 rr->rr_fid1 = &rec->lk_fid1;
1137 rr->rr_fid2 = &rec->lk_fid2;
1138 attr->la_ctime = rec->lk_time;
1139 attr->la_mtime = rec->lk_time;
1140 attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME;
1142 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1143 mdt_set_capainfo(info, 0, rr->rr_fid1,
1144 req_capsule_client_get(pill, &RMF_CAPA1));
1145 if (req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT))
1146 mdt_set_capainfo(info, 1, rr->rr_fid2,
1147 req_capsule_client_get(pill, &RMF_CAPA2));
1149 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1153 rc = mdt_dlmreq_unpack(info);
1158 static int mdt_unlink_unpack(struct mdt_thread_info *info)
1160 struct lu_ucred *uc = mdt_ucred(info);
1161 struct mdt_rec_unlink *rec;
1162 struct md_attr *ma = &info->mti_attr;
1163 struct lu_attr *attr = &info->mti_attr.ma_attr;
1164 struct mdt_reint_record *rr = &info->mti_rr;
1165 struct req_capsule *pill = info->mti_pill;
1169 CLASSERT(sizeof(struct mdt_rec_unlink) == sizeof(struct mdt_rec_reint));
1170 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1174 /* This prior initialization is needed for old_init_ucred_reint() */
1175 uc->uc_fsuid = rec->ul_fsuid;
1176 uc->uc_fsgid = rec->ul_fsgid;
1177 uc->uc_cap = rec->ul_cap;
1178 uc->uc_suppgids[0] = rec->ul_suppgid1;
1179 uc->uc_suppgids[1] = -1;
1181 attr->la_uid = rec->ul_fsuid;
1182 attr->la_gid = rec->ul_fsgid;
1183 rr->rr_fid1 = &rec->ul_fid1;
1184 rr->rr_fid2 = &rec->ul_fid2;
1185 attr->la_ctime = rec->ul_time;
1186 attr->la_mtime = rec->ul_time;
1187 attr->la_mode = rec->ul_mode;
1188 attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME | LA_MODE;
1190 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1191 mdt_set_capainfo(info, 0, rr->rr_fid1,
1192 req_capsule_client_get(pill, &RMF_CAPA1));
1194 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1198 if (rec->ul_bias & MDS_VTX_BYPASS)
1199 ma->ma_attr_flags |= MDS_VTX_BYPASS;
1201 ma->ma_attr_flags &= ~MDS_VTX_BYPASS;
1203 info->mti_spec.no_create = !!req_is_replay(mdt_info_req(info));
1205 rc = mdt_dlmreq_unpack(info);
1209 static int mdt_rmentry_unpack(struct mdt_thread_info *info)
1211 info->mti_spec.sp_rm_entry = 1;
1212 return mdt_unlink_unpack(info);
1215 static int mdt_rename_unpack(struct mdt_thread_info *info)
1217 struct lu_ucred *uc = mdt_ucred(info);
1218 struct mdt_rec_rename *rec;
1219 struct md_attr *ma = &info->mti_attr;
1220 struct lu_attr *attr = &info->mti_attr.ma_attr;
1221 struct mdt_reint_record *rr = &info->mti_rr;
1222 struct req_capsule *pill = info->mti_pill;
1226 CLASSERT(sizeof(struct mdt_rec_rename) == sizeof(struct mdt_rec_reint));
1227 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1231 /* This prior initialization is needed for old_init_ucred_reint() */
1232 uc->uc_fsuid = rec->rn_fsuid;
1233 uc->uc_fsgid = rec->rn_fsgid;
1234 uc->uc_cap = rec->rn_cap;
1235 uc->uc_suppgids[0] = rec->rn_suppgid1;
1236 uc->uc_suppgids[1] = rec->rn_suppgid2;
1238 attr->la_uid = rec->rn_fsuid;
1239 attr->la_gid = rec->rn_fsgid;
1240 rr->rr_fid1 = &rec->rn_fid1;
1241 rr->rr_fid2 = &rec->rn_fid2;
1242 attr->la_ctime = rec->rn_time;
1243 attr->la_mtime = rec->rn_time;
1244 /* rename_tgt contains the mode already */
1245 attr->la_mode = rec->rn_mode;
1246 attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME | LA_MODE;
1248 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1249 mdt_set_capainfo(info, 0, rr->rr_fid1,
1250 req_capsule_client_get(pill, &RMF_CAPA1));
1251 if (req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT))
1252 mdt_set_capainfo(info, 1, rr->rr_fid2,
1253 req_capsule_client_get(pill, &RMF_CAPA2));
1255 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1259 rc = mdt_name_unpack(pill, &RMF_SYMTGT, &rr->rr_tgt_name, 0);
1263 if (rec->rn_bias & MDS_VTX_BYPASS)
1264 ma->ma_attr_flags |= MDS_VTX_BYPASS;
1266 ma->ma_attr_flags &= ~MDS_VTX_BYPASS;
1268 info->mti_spec.no_create = !!req_is_replay(mdt_info_req(info));
1271 rc = mdt_dlmreq_unpack(info);
1277 * please see comment above LOV_MAGIC_V1_DEF
1279 static void mdt_fix_lov_magic(struct mdt_thread_info *info)
1281 struct mdt_reint_record *rr = &info->mti_rr;
1282 struct lov_user_md_v1 *v1;
1284 v1 = (void *)rr->rr_eadata;
1287 if (unlikely(req_is_replay(mdt_info_req(info)))) {
1288 if (v1->lmm_magic == LOV_USER_MAGIC_V1) {
1289 v1->lmm_magic = LOV_MAGIC_V1_DEF;
1290 } else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V1)) {
1291 v1->lmm_magic = __swab32(LOV_MAGIC_V1_DEF);
1292 } else if (v1->lmm_magic == LOV_USER_MAGIC_V3) {
1293 v1->lmm_magic = LOV_MAGIC_V3_DEF;
1294 } else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V3)) {
1295 v1->lmm_magic = __swab32(LOV_MAGIC_V3_DEF);
1300 static int mdt_open_unpack(struct mdt_thread_info *info)
1302 struct lu_ucred *uc = mdt_ucred(info);
1303 struct mdt_rec_create *rec;
1304 struct lu_attr *attr = &info->mti_attr.ma_attr;
1305 struct req_capsule *pill = info->mti_pill;
1306 struct mdt_reint_record *rr = &info->mti_rr;
1307 struct ptlrpc_request *req = mdt_info_req(info);
1308 struct md_op_spec *sp = &info->mti_spec;
1311 CLASSERT(sizeof(struct mdt_rec_create) == sizeof(struct mdt_rec_reint));
1312 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1316 /* This prior initialization is needed for old_init_ucred_reint() */
1317 uc->uc_fsuid = rec->cr_fsuid;
1318 uc->uc_fsgid = rec->cr_fsgid;
1319 uc->uc_cap = rec->cr_cap;
1320 uc->uc_suppgids[0] = rec->cr_suppgid1;
1321 uc->uc_suppgids[1] = rec->cr_suppgid2;
1322 uc->uc_umask = rec->cr_umask;
1324 rr->rr_fid1 = &rec->cr_fid1;
1325 rr->rr_fid2 = &rec->cr_fid2;
1326 rr->rr_handle = &rec->cr_old_handle;
1327 attr->la_mode = rec->cr_mode;
1328 attr->la_rdev = rec->cr_rdev;
1329 attr->la_uid = rec->cr_fsuid;
1330 attr->la_gid = rec->cr_fsgid;
1331 attr->la_ctime = rec->cr_time;
1332 attr->la_mtime = rec->cr_time;
1333 attr->la_atime = rec->cr_time;
1334 attr->la_valid = LA_MODE | LA_RDEV | LA_UID | LA_GID |
1335 LA_CTIME | LA_MTIME | LA_ATIME;
1336 memset(&info->mti_spec.u, 0, sizeof(info->mti_spec.u));
1337 info->mti_spec.sp_cr_flags = get_mrc_cr_flags(rec);
1338 /* Do not trigger ASSERTION if client miss to set such flags. */
1339 if (unlikely(info->mti_spec.sp_cr_flags == 0))
1341 info->mti_replayepoch = rec->cr_ioepoch;
1343 info->mti_cross_ref = !!(rec->cr_bias & MDS_CROSS_REF);
1345 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1346 mdt_set_capainfo(info, 0, rr->rr_fid1,
1347 req_capsule_client_get(pill, &RMF_CAPA1));
1348 if (req_is_replay(req) &&
1349 req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT)) {
1351 mdt_set_capainfo(info, 1, rr->rr_fid2,
1352 req_capsule_client_get(pill, &RMF_CAPA2));
1355 * FIXME: capa in replay open request might have expired,
1356 * bypass capa check. Security hole?
1358 mdt_set_capainfo(info, 0, rr->rr_fid1, BYPASS_CAPA);
1359 mdt_set_capainfo(info, 1, rr->rr_fid2, BYPASS_CAPA);
1363 mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, MNF_FIX_ANON);
1365 if (req_capsule_field_present(pill, &RMF_EADATA, RCL_CLIENT)) {
1366 rr->rr_eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
1368 if (rr->rr_eadatalen > 0) {
1369 rr->rr_eadata = req_capsule_client_get(pill,
1371 sp->u.sp_ea.eadatalen = rr->rr_eadatalen;
1372 sp->u.sp_ea.eadata = rr->rr_eadata;
1373 sp->no_create = !!req_is_replay(req);
1374 mdt_fix_lov_magic(info);
1378 * Client default md_size may be 0 right after client start,
1379 * until all osc are connected, set here just some reasonable
1380 * value to prevent misbehavior.
1382 if (rr->rr_eadatalen == 0 &&
1383 !(info->mti_spec.sp_cr_flags & MDS_OPEN_DELAY_CREATE))
1384 rr->rr_eadatalen = MIN_MD_SIZE;
1390 static int mdt_setxattr_unpack(struct mdt_thread_info *info)
1392 struct mdt_reint_record *rr = &info->mti_rr;
1393 struct lu_ucred *uc = mdt_ucred(info);
1394 struct lu_attr *attr = &info->mti_attr.ma_attr;
1395 struct req_capsule *pill = info->mti_pill;
1396 struct mdt_rec_setxattr *rec;
1401 CLASSERT(sizeof(struct mdt_rec_setxattr) ==
1402 sizeof(struct mdt_rec_reint));
1404 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1408 /* This prior initialization is needed for old_init_ucred_reint() */
1409 uc->uc_fsuid = rec->sx_fsuid;
1410 uc->uc_fsgid = rec->sx_fsgid;
1411 uc->uc_cap = rec->sx_cap;
1412 uc->uc_suppgids[0] = rec->sx_suppgid1;
1413 uc->uc_suppgids[1] = -1;
1415 rr->rr_opcode = rec->sx_opcode;
1416 rr->rr_fid1 = &rec->sx_fid;
1417 attr->la_valid = rec->sx_valid;
1418 attr->la_ctime = rec->sx_time;
1419 attr->la_size = rec->sx_size;
1420 attr->la_flags = rec->sx_flags;
1422 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1423 mdt_set_capainfo(info, 0, rr->rr_fid1,
1424 req_capsule_client_get(pill, &RMF_CAPA1));
1426 mdt_set_capainfo(info, 0, rr->rr_fid1, BYPASS_CAPA);
1428 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1432 if (req_capsule_field_present(pill, &RMF_EADATA, RCL_CLIENT)) {
1433 rr->rr_eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
1435 if (rr->rr_eadatalen > 0) {
1436 rr->rr_eadata = req_capsule_client_get(pill,
1438 if (rr->rr_eadata == NULL)
1441 rr->rr_eadata = NULL;
1443 } else if (!(attr->la_valid & OBD_MD_FLXATTRRM)) {
1444 CDEBUG(D_INFO, "no xattr data supplied\n");
1448 if (mdt_dlmreq_unpack(info) < 0)
1455 typedef int (*reint_unpacker)(struct mdt_thread_info *info);
1457 static reint_unpacker mdt_reint_unpackers[REINT_MAX] = {
1458 [REINT_SETATTR] = mdt_setattr_unpack,
1459 [REINT_CREATE] = mdt_create_unpack,
1460 [REINT_LINK] = mdt_link_unpack,
1461 [REINT_UNLINK] = mdt_unlink_unpack,
1462 [REINT_RENAME] = mdt_rename_unpack,
1463 [REINT_OPEN] = mdt_open_unpack,
1464 [REINT_SETXATTR] = mdt_setxattr_unpack,
1465 [REINT_RMENTRY] = mdt_rmentry_unpack,
1466 [REINT_MIGRATE] = mdt_rename_unpack,
1469 int mdt_reint_unpack(struct mdt_thread_info *info, __u32 op)
1474 memset(&info->mti_rr, 0, sizeof(info->mti_rr));
1475 if (op < REINT_MAX && mdt_reint_unpackers[op] != NULL) {
1476 info->mti_rr.rr_opcode = op;
1477 rc = mdt_reint_unpackers[op](info);
1479 CERROR("Unexpected opcode %d\n", op);