4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2013, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/mdt/mdt_lib.c
38 * Lustre Metadata Target (mdt) request unpacking helper.
40 * Author: Peter Braam <braam@clusterfs.com>
41 * Author: Andreas Dilger <adilger@clusterfs.com>
42 * Author: Phil Schwan <phil@clusterfs.com>
43 * Author: Mike Shaver <shaver@clusterfs.com>
44 * Author: Nikita Danilov <nikita@clusterfs.com>
45 * Author: Huang Hua <huanghua@clusterfs.com>
46 * Author: Fan Yong <fanyong@clusterfs.com>
49 #define DEBUG_SUBSYSTEM S_MDS
51 #include "mdt_internal.h"
52 #include <lnet/nidstr.h>
54 typedef enum ucred_init_type {
60 void mdt_exit_ucred(struct mdt_thread_info *info)
62 struct lu_ucred *uc = mdt_ucred(info);
63 struct mdt_device *mdt = info->mti_mdt;
66 if (uc->uc_valid != UCRED_INIT) {
67 uc->uc_suppgids[0] = uc->uc_suppgids[1] = -1;
69 put_group_info(uc->uc_ginfo);
72 if (uc->uc_identity) {
73 mdt_identity_put(mdt->mdt_identity_cache,
75 uc->uc_identity = NULL;
77 uc->uc_valid = UCRED_INIT;
81 static int match_nosquash_list(struct rw_semaphore *sem,
82 struct list_head *nidlist,
88 rc = cfs_match_nid(peernid, nidlist);
93 /* root_squash for inter-MDS operations */
94 static int mdt_root_squash(struct mdt_thread_info *info, lnet_nid_t peernid)
96 struct lu_ucred *ucred = mdt_ucred(info);
97 struct root_squash_info *squash = &info->mti_mdt->mdt_squash;
100 LASSERT(ucred != NULL);
101 if (!squash->rsi_uid || ucred->uc_fsuid)
104 if (match_nosquash_list(&squash->rsi_sem,
105 &squash->rsi_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 squash->rsi_uid, squash->rsi_gid, 0);
117 ucred->uc_fsuid = squash->rsi_uid;
118 ucred->uc_fsgid = squash->rsi_gid;
120 ucred->uc_suppgids[0] = -1;
121 ucred->uc_suppgids[1] = -1;
126 static int new_init_ucred(struct mdt_thread_info *info, ucred_init_type_t type,
129 struct ptlrpc_request *req = mdt_info_req(info);
130 struct mdt_device *mdt = info->mti_mdt;
131 struct ptlrpc_user_desc *pud = req->rq_user_desc;
132 struct lu_ucred *ucred = mdt_ucred(info);
133 lnet_nid_t peernid = req->rq_peer.nid;
135 __u32 remote = exp_connect_rmtclient(info->mti_exp);
142 LASSERT(req->rq_auth_gss);
143 LASSERT(!req->rq_auth_usr_mdt);
144 LASSERT(req->rq_user_desc);
145 LASSERT(ucred != NULL);
147 ucred->uc_valid = UCRED_INVALID;
149 ucred->uc_o_uid = pud->pud_uid;
150 ucred->uc_o_gid = pud->pud_gid;
151 ucred->uc_o_fsuid = pud->pud_fsuid;
152 ucred->uc_o_fsgid = pud->pud_fsgid;
154 if (type == BODY_INIT) {
155 struct mdt_body *body = (struct mdt_body *)buf;
157 ucred->uc_suppgids[0] = body->mbo_suppgid;
158 ucred->uc_suppgids[1] = -1;
161 /* sanity check: we expect the uid which client claimed is true */
163 if (!uid_valid(make_kuid(&init_user_ns, req->rq_auth_mapped_uid))) {
164 CDEBUG(D_SEC, "remote user not mapped, deny access!\n");
168 if (ptlrpc_user_desc_do_idmap(req, pud))
171 if (req->rq_auth_mapped_uid != pud->pud_uid) {
172 CDEBUG(D_SEC, "remote client %s: auth/mapped uid %u/%u "
173 "while client claims %u:%u/%u:%u\n",
174 libcfs_nid2str(peernid), req->rq_auth_uid,
175 req->rq_auth_mapped_uid,
176 pud->pud_uid, pud->pud_gid,
177 pud->pud_fsuid, pud->pud_fsgid);
181 if (req->rq_auth_uid != pud->pud_uid) {
182 CDEBUG(D_SEC, "local client %s: auth uid %u "
183 "while client claims %u:%u/%u:%u\n",
184 libcfs_nid2str(peernid), req->rq_auth_uid,
185 pud->pud_uid, pud->pud_gid,
186 pud->pud_fsuid, pud->pud_fsgid);
191 if (is_identity_get_disabled(mdt->mdt_identity_cache)) {
193 CDEBUG(D_SEC, "remote client must run with identity_get "
197 ucred->uc_identity = NULL;
198 perm = CFS_SETUID_PERM | CFS_SETGID_PERM |
202 struct md_identity *identity;
204 identity = mdt_identity_get(mdt->mdt_identity_cache,
206 if (IS_ERR(identity)) {
207 if (unlikely(PTR_ERR(identity) == -EREMCHG &&
209 ucred->uc_identity = NULL;
210 perm = CFS_SETUID_PERM | CFS_SETGID_PERM |
213 CDEBUG(D_SEC, "Deny access without identity: uid %u\n",
218 ucred->uc_identity = identity;
219 perm = mdt_identity_get_perm(ucred->uc_identity,
224 /* find out the setuid/setgid attempt */
225 setuid = (pud->pud_uid != pud->pud_fsuid);
226 setgid = ((pud->pud_gid != pud->pud_fsgid) ||
227 (ucred->uc_identity &&
228 (pud->pud_gid != ucred->uc_identity->mi_gid)));
230 /* check permission of setuid */
231 if (setuid && !(perm & CFS_SETUID_PERM)) {
232 CDEBUG(D_SEC, "mdt blocked setuid attempt (%u -> %u) from %s\n",
233 pud->pud_uid, pud->pud_fsuid, libcfs_nid2str(peernid));
234 GOTO(out, rc = -EACCES);
237 /* check permission of setgid */
238 if (setgid && !(perm & CFS_SETGID_PERM)) {
239 CDEBUG(D_SEC, "mdt blocked setgid attempt (%u:%u/%u:%u -> %u) "
240 "from %s\n", pud->pud_uid, pud->pud_gid,
241 pud->pud_fsuid, pud->pud_fsgid,
242 ucred->uc_identity->mi_gid, libcfs_nid2str(peernid));
243 GOTO(out, rc = -EACCES);
247 * NB: remote client not allowed to setgroups anyway.
249 if (!remote && perm & CFS_SETGRP_PERM) {
250 if (pud->pud_ngroups) {
251 /* setgroups for local client */
252 ucred->uc_ginfo = groups_alloc(pud->pud_ngroups);
253 if (!ucred->uc_ginfo) {
254 CERROR("failed to alloc %d groups\n",
256 GOTO(out, rc = -ENOMEM);
259 lustre_groups_from_list(ucred->uc_ginfo,
261 lustre_groups_sort(ucred->uc_ginfo);
263 ucred->uc_ginfo = NULL;
266 ucred->uc_suppgids[0] = -1;
267 ucred->uc_suppgids[1] = -1;
268 ucred->uc_ginfo = NULL;
271 ucred->uc_uid = pud->pud_uid;
272 ucred->uc_gid = pud->pud_gid;
273 ucred->uc_fsuid = pud->pud_fsuid;
274 ucred->uc_fsgid = pud->pud_fsgid;
276 /* process root_squash here. */
277 mdt_root_squash(info, peernid);
279 /* remove fs privilege for non-root user. */
281 ucred->uc_cap = pud->pud_cap & ~CFS_CAP_FS_MASK;
283 ucred->uc_cap = pud->pud_cap;
284 if (remote && !(perm & CFS_RMTOWN_PERM))
285 ucred->uc_cap &= ~(CFS_CAP_SYS_RESOURCE_MASK |
287 ucred->uc_valid = UCRED_NEW;
293 if (ucred->uc_ginfo) {
294 put_group_info(ucred->uc_ginfo);
295 ucred->uc_ginfo = NULL;
297 if (ucred->uc_identity) {
298 mdt_identity_put(mdt->mdt_identity_cache,
300 ucred->uc_identity = NULL;
307 int mdt_check_ucred(struct mdt_thread_info *info)
309 struct ptlrpc_request *req = mdt_info_req(info);
310 struct mdt_device *mdt = info->mti_mdt;
311 struct ptlrpc_user_desc *pud = req->rq_user_desc;
312 struct lu_ucred *ucred = mdt_ucred(info);
313 struct md_identity *identity = NULL;
314 lnet_nid_t peernid = req->rq_peer.nid;
316 __u32 remote = exp_connect_rmtclient(info->mti_exp);
323 LASSERT(ucred != NULL);
324 if ((ucred->uc_valid == UCRED_OLD) || (ucred->uc_valid == UCRED_NEW))
327 if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
330 /* sanity check: if we use strong authentication, we expect the
331 * uid which client claimed is true */
333 if (!uid_valid(make_kuid(&init_user_ns, req->rq_auth_mapped_uid))) {
334 CDEBUG(D_SEC, "remote user not mapped, deny access!\n");
338 if (ptlrpc_user_desc_do_idmap(req, pud))
341 if (req->rq_auth_mapped_uid != pud->pud_uid) {
342 CDEBUG(D_SEC, "remote client %s: auth/mapped uid %u/%u "
343 "while client claims %u:%u/%u:%u\n",
344 libcfs_nid2str(peernid), req->rq_auth_uid,
345 req->rq_auth_mapped_uid,
346 pud->pud_uid, pud->pud_gid,
347 pud->pud_fsuid, pud->pud_fsgid);
351 if (req->rq_auth_uid != pud->pud_uid) {
352 CDEBUG(D_SEC, "local client %s: auth uid %u "
353 "while client claims %u:%u/%u:%u\n",
354 libcfs_nid2str(peernid), req->rq_auth_uid,
355 pud->pud_uid, pud->pud_gid,
356 pud->pud_fsuid, pud->pud_fsgid);
361 if (is_identity_get_disabled(mdt->mdt_identity_cache)) {
363 CDEBUG(D_SEC, "remote client must run with identity_get "
370 identity = mdt_identity_get(mdt->mdt_identity_cache, pud->pud_uid);
371 if (IS_ERR(identity)) {
372 if (unlikely(PTR_ERR(identity) == -EREMCHG &&
376 CDEBUG(D_SEC, "Deny access without identity: uid %u\n",
382 perm = mdt_identity_get_perm(identity, remote, peernid);
383 /* find out the setuid/setgid attempt */
384 setuid = (pud->pud_uid != pud->pud_fsuid);
385 setgid = (pud->pud_gid != pud->pud_fsgid ||
386 pud->pud_gid != identity->mi_gid);
388 /* check permission of setuid */
389 if (setuid && !(perm & CFS_SETUID_PERM)) {
390 CDEBUG(D_SEC, "mdt blocked setuid attempt (%u -> %u) from %s\n",
391 pud->pud_uid, pud->pud_fsuid, libcfs_nid2str(peernid));
392 GOTO(out, rc = -EACCES);
395 /* check permission of setgid */
396 if (setgid && !(perm & CFS_SETGID_PERM)) {
397 CDEBUG(D_SEC, "mdt blocked setgid attempt (%u:%u/%u:%u -> %u) "
398 "from %s\n", pud->pud_uid, pud->pud_gid,
399 pud->pud_fsuid, pud->pud_fsgid, identity->mi_gid,
400 libcfs_nid2str(peernid));
401 GOTO(out, rc = -EACCES);
407 mdt_identity_put(mdt->mdt_identity_cache, identity);
411 static int old_init_ucred(struct mdt_thread_info *info,
412 struct mdt_body *body)
414 struct lu_ucred *uc = mdt_ucred(info);
415 struct mdt_device *mdt = info->mti_mdt;
416 struct md_identity *identity = NULL;
421 uc->uc_valid = UCRED_INVALID;
422 uc->uc_o_uid = uc->uc_uid = body->mbo_uid;
423 uc->uc_o_gid = uc->uc_gid = body->mbo_gid;
424 uc->uc_o_fsuid = uc->uc_fsuid = body->mbo_fsuid;
425 uc->uc_o_fsgid = uc->uc_fsgid = body->mbo_fsgid;
426 uc->uc_suppgids[0] = body->mbo_suppgid;
427 uc->uc_suppgids[1] = -1;
429 if (!is_identity_get_disabled(mdt->mdt_identity_cache)) {
430 identity = mdt_identity_get(mdt->mdt_identity_cache,
432 if (IS_ERR(identity)) {
433 if (unlikely(PTR_ERR(identity) == -EREMCHG)) {
436 CDEBUG(D_SEC, "Deny access without identity: "
437 "uid %u\n", uc->uc_fsuid);
442 uc->uc_identity = identity;
444 /* process root_squash here. */
445 mdt_root_squash(info, mdt_info_req(info)->rq_peer.nid);
447 /* remove fs privilege for non-root user. */
449 uc->uc_cap = body->mbo_capability & ~CFS_CAP_FS_MASK;
451 uc->uc_cap = body->mbo_capability;
452 uc->uc_valid = UCRED_OLD;
457 static int old_init_ucred_reint(struct mdt_thread_info *info)
459 struct lu_ucred *uc = mdt_ucred(info);
460 struct mdt_device *mdt = info->mti_mdt;
461 struct md_identity *identity = NULL;
466 uc->uc_valid = UCRED_INVALID;
467 uc->uc_o_uid = uc->uc_o_fsuid = uc->uc_uid = uc->uc_fsuid;
468 uc->uc_o_gid = uc->uc_o_fsgid = uc->uc_gid = uc->uc_fsgid;
470 if (!is_identity_get_disabled(mdt->mdt_identity_cache)) {
471 identity = mdt_identity_get(mdt->mdt_identity_cache,
473 if (IS_ERR(identity)) {
474 if (unlikely(PTR_ERR(identity) == -EREMCHG)) {
477 CDEBUG(D_SEC, "Deny access without identity: "
478 "uid %u\n", uc->uc_fsuid);
483 uc->uc_identity = identity;
485 /* process root_squash here. */
486 mdt_root_squash(info, mdt_info_req(info)->rq_peer.nid);
488 /* remove fs privilege for non-root user. */
490 uc->uc_cap &= ~CFS_CAP_FS_MASK;
491 uc->uc_valid = UCRED_OLD;
496 int mdt_init_ucred(struct mdt_thread_info *info, struct mdt_body *body)
498 struct ptlrpc_request *req = mdt_info_req(info);
499 struct lu_ucred *uc = mdt_ucred(info);
502 if ((uc->uc_valid == UCRED_OLD) || (uc->uc_valid == UCRED_NEW))
505 mdt_exit_ucred(info);
507 if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
508 return old_init_ucred(info, body);
510 return new_init_ucred(info, BODY_INIT, body);
513 int mdt_init_ucred_reint(struct mdt_thread_info *info)
515 struct ptlrpc_request *req = mdt_info_req(info);
516 struct lu_ucred *uc = mdt_ucred(info);
519 if ((uc->uc_valid == UCRED_OLD) || (uc->uc_valid == UCRED_NEW))
522 mdt_exit_ucred(info);
524 if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
525 return old_init_ucred_reint(info);
527 return new_init_ucred(info, REC_INIT, NULL);
530 /* copied from lov/lov_ea.c, just for debugging, will be removed later */
531 void mdt_dump_lmm(int level, const struct lov_mds_md *lmm, __u64 valid)
533 const struct lov_ost_data_v1 *lod;
537 if (likely(!cfs_cdebug_show(level, DEBUG_SUBSYSTEM)))
540 count = le16_to_cpu(((struct lov_user_md *)lmm)->lmm_stripe_count);
542 CDEBUG(level, "objid "DOSTID", magic 0x%08X, pattern %#X\n",
543 POSTID(&lmm->lmm_oi), le32_to_cpu(lmm->lmm_magic),
544 le32_to_cpu(lmm->lmm_pattern));
545 CDEBUG(level, "stripe_size=0x%x, stripe_count=0x%x\n",
546 le32_to_cpu(lmm->lmm_stripe_size), count);
548 /* If it's a directory or a released file, then there are
549 * no actual objects to print, so bail out. */
550 if (valid & OBD_MD_FLDIREA ||
551 le32_to_cpu(lmm->lmm_pattern) & LOV_PATTERN_F_RELEASED)
554 LASSERT(count <= LOV_MAX_STRIPE_COUNT);
555 for (i = 0, lod = lmm->lmm_objects; i < count; i++, lod++) {
558 ostid_le_to_cpu(&lod->l_ost_oi, &oi);
559 CDEBUG(level, "stripe %u idx %u subobj "DOSTID"\n",
560 i, le32_to_cpu(lod->l_ost_idx), POSTID(&oi));
564 void mdt_dump_lmv(unsigned int level, const union lmv_mds_md *lmv)
566 const struct lmv_mds_md_v1 *lmm1;
569 if (likely(!cfs_cdebug_show(level, DEBUG_SUBSYSTEM)))
572 lmm1 = &lmv->lmv_md_v1;
573 CDEBUG(level, "magic 0x%08X, master %#X stripe_count %#x\n",
574 le32_to_cpu(lmm1->lmv_magic),
575 le32_to_cpu(lmm1->lmv_master_mdt_index),
576 le32_to_cpu(lmm1->lmv_stripe_count));
578 if (le32_to_cpu(lmm1->lmv_magic) == LMV_MAGIC_STRIPE)
581 for (i = 0; i < le32_to_cpu(lmm1->lmv_stripe_count); i++) {
584 fid_le_to_cpu(&fid, &lmm1->lmv_stripe_fids[i]);
585 CDEBUG(level, "idx %u subobj "DFID"\n", i, PFID(&fid));
589 /* Shrink and/or grow reply buffers */
590 int mdt_fix_reply(struct mdt_thread_info *info)
592 struct req_capsule *pill = info->mti_pill;
593 struct mdt_body *body;
594 int md_size, md_packed = 0;
599 body = req_capsule_server_get(pill, &RMF_MDT_BODY);
600 LASSERT(body != NULL);
602 if (body->mbo_valid & (OBD_MD_FLDIREA | OBD_MD_FLEASIZE |
604 md_size = body->mbo_eadatasize;
608 acl_size = body->mbo_aclsize;
610 /* this replay - not send info to client */
611 if (info->mti_spec.no_create) {
616 CDEBUG(D_INFO, "Shrink to md_size = %d cookie/acl_size = %d"
617 " MDSCAPA = %llx, OSSCAPA = %llx\n",
619 (unsigned long long)(body->mbo_valid & OBD_MD_FLMDSCAPA),
620 (unsigned long long)(body->mbo_valid & OBD_MD_FLOSSCAPA));
624 &RMF_ACL, or &RMF_LOGCOOKIES
625 (optional) &RMF_CAPA1,
626 (optional) &RMF_CAPA2,
627 (optional) something else
630 /* MDT_MD buffer may be bigger than packed value, let's shrink all
631 * buffers before growing it */
632 if (info->mti_big_lmm_used) {
633 /* big_lmm buffer may be used even without packing the result
634 * into reply, just for internal server needs */
635 if (req_capsule_has_field(pill, &RMF_MDT_MD, RCL_SERVER))
636 md_packed = req_capsule_get_size(pill, &RMF_MDT_MD,
639 /* free big lmm if md_size is not needed */
640 if (md_size == 0 || md_packed == 0) {
641 info->mti_big_lmm_used = 0;
643 /* buffer must be allocated separately */
644 LASSERT(info->mti_attr.ma_lmm !=
645 req_capsule_server_get(pill, &RMF_MDT_MD));
646 req_capsule_shrink(pill, &RMF_MDT_MD, 0, RCL_SERVER);
648 } else if (req_capsule_has_field(pill, &RMF_MDT_MD, RCL_SERVER)) {
649 req_capsule_shrink(pill, &RMF_MDT_MD, md_size, RCL_SERVER);
652 if (req_capsule_has_field(pill, &RMF_ACL, RCL_SERVER))
653 req_capsule_shrink(pill, &RMF_ACL, acl_size, RCL_SERVER);
654 else if (req_capsule_has_field(pill, &RMF_LOGCOOKIES, RCL_SERVER))
655 req_capsule_shrink(pill, &RMF_LOGCOOKIES,
656 acl_size, RCL_SERVER);
658 if (req_capsule_has_field(pill, &RMF_CAPA1, RCL_SERVER) &&
659 !(body->mbo_valid & OBD_MD_FLMDSCAPA))
660 req_capsule_shrink(pill, &RMF_CAPA1, 0, RCL_SERVER);
662 if (req_capsule_has_field(pill, &RMF_CAPA2, RCL_SERVER) &&
663 !(body->mbo_valid & OBD_MD_FLOSSCAPA))
664 req_capsule_shrink(pill, &RMF_CAPA2, 0, RCL_SERVER);
667 * Some more field should be shrinked if needed.
668 * This should be done by those who added fields to reply message.
671 /* Grow MD buffer if needed finally */
672 if (info->mti_big_lmm_used) {
675 LASSERT(md_size > md_packed);
676 CDEBUG(D_INFO, "Enlarge reply buffer, need extra %d bytes\n",
677 md_size - md_packed);
678 rc = req_capsule_server_grow(pill, &RMF_MDT_MD, md_size);
680 /* we can't answer with proper LOV EA, drop flags,
681 * the rc is also returned so this request is
682 * considered as failed */
683 body->mbo_valid &= ~(OBD_MD_FLDIREA | OBD_MD_FLEASIZE);
684 /* don't return transno along with error */
685 lustre_msg_set_transno(pill->rc_req->rq_repmsg, 0);
687 /* now we need to pack right LOV/LMV EA */
688 lmm = req_capsule_server_get(pill, &RMF_MDT_MD);
689 if (info->mti_attr.ma_valid & MA_LOV) {
690 LASSERT(req_capsule_get_size(pill, &RMF_MDT_MD,
692 info->mti_attr.ma_lmm_size);
693 memcpy(lmm, info->mti_attr.ma_lmm,
694 info->mti_attr.ma_lmm_size);
695 } else if (info->mti_attr.ma_valid & MA_LMV) {
696 LASSERT(req_capsule_get_size(pill, &RMF_MDT_MD,
698 info->mti_attr.ma_lmv_size);
699 memcpy(lmm, info->mti_attr.ma_lmv,
700 info->mti_attr.ma_lmv_size);
703 /* update mdt_max_mdsize so clients will be aware about that */
704 if (info->mti_mdt->mdt_max_mdsize < info->mti_attr.ma_lmm_size)
705 info->mti_mdt->mdt_max_mdsize =
706 info->mti_attr.ma_lmm_size;
707 info->mti_big_lmm_used = 0;
713 /* if object is dying, pack the lov/llog data,
714 * parameter info->mti_attr should be valid at this point! */
715 int mdt_handle_last_unlink(struct mdt_thread_info *info, struct mdt_object *mo,
716 const struct md_attr *ma)
718 struct mdt_body *repbody;
719 const struct lu_attr *la = &ma->ma_attr;
723 repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
724 LASSERT(repbody != NULL);
726 if (ma->ma_valid & MA_INODE)
727 mdt_pack_attr2body(info, repbody, la, mdt_object_fid(mo));
729 if (ma->ma_valid & MA_LOV) {
730 CERROR("No need in LOV EA upon unlink\n");
733 repbody->mbo_eadatasize = 0;
735 if (info->mti_mdt->mdt_lut.lut_oss_capa &&
736 exp_connect_flags(info->mti_exp) & OBD_CONNECT_OSS_CAPA &&
737 repbody->mbo_valid & OBD_MD_FLEASIZE) {
738 struct lustre_capa *capa;
740 capa = req_capsule_server_get(info->mti_pill, &RMF_CAPA2);
742 capa->lc_opc = CAPA_OPC_OSS_DESTROY;
743 rc = mo_capa_get(info->mti_env, mdt_object_child(mo), capa, 0);
747 repbody->mbo_valid |= OBD_MD_FLOSSCAPA;
753 static __u64 mdt_attr_valid_xlate(__u64 in, struct mdt_reint_record *rr,
759 if (in & MDS_ATTR_MODE)
761 if (in & MDS_ATTR_UID)
763 if (in & MDS_ATTR_GID)
765 if (in & MDS_ATTR_SIZE)
767 if (in & MDS_ATTR_BLOCKS)
769 if (in & MDS_ATTR_ATIME_SET)
771 if (in & MDS_ATTR_CTIME_SET)
773 if (in & MDS_ATTR_MTIME_SET)
775 if (in & MDS_ATTR_ATTR_FLAG)
777 if (in & MDS_ATTR_KILL_SUID)
779 if (in & MDS_ATTR_KILL_SGID)
782 if (in & MDS_ATTR_FROM_OPEN)
783 rr->rr_flags |= MRF_OPEN_TRUNC;
784 if (in & MDS_OPEN_OWNEROVERRIDE)
785 ma->ma_attr_flags |= MDS_OWNEROVERRIDE;
786 if (in & MDS_ATTR_FORCE)
787 ma->ma_attr_flags |= MDS_PERM_BYPASS;
789 in &= ~(MDS_ATTR_MODE | MDS_ATTR_UID | MDS_ATTR_GID |
790 MDS_ATTR_ATIME | MDS_ATTR_MTIME | MDS_ATTR_CTIME |
791 MDS_ATTR_ATIME_SET | MDS_ATTR_CTIME_SET | MDS_ATTR_MTIME_SET |
792 MDS_ATTR_SIZE | MDS_ATTR_BLOCKS | MDS_ATTR_ATTR_FLAG |
793 MDS_ATTR_FORCE | MDS_ATTR_KILL_SUID | MDS_ATTR_KILL_SGID |
794 MDS_ATTR_FROM_OPEN | MDS_OPEN_OWNEROVERRIDE);
796 CERROR("Unknown attr bits: "LPX64"\n", in);
800 void mdt_set_capainfo(struct mdt_thread_info *info, int offset,
801 const struct lu_fid *fid, struct lustre_capa *capa)
803 struct lu_capainfo *lci;
805 LASSERT(offset >= 0 && offset < LU_CAPAINFO_MAX);
806 if (!info->mti_mdt->mdt_lut.lut_mds_capa ||
807 !(exp_connect_flags(info->mti_exp) & OBD_CONNECT_MDS_CAPA))
810 lci = lu_capainfo_get(info->mti_env);
812 lci->lci_fid[offset] = *fid;
813 lci->lci_capa[offset] = capa;
817 void mdt_dump_capainfo(struct mdt_thread_info *info)
819 struct lu_capainfo *lci = lu_capainfo_get(info->mti_env);
825 for (i = 0; i < LU_CAPAINFO_MAX; i++) {
826 if (lci->lci_capa[i] == NULL) {
827 CERROR("no capa for index %d "DFID"\n",
828 i, PFID(&lci->lci_fid[i]));
831 if (lci->lci_capa[i] == BYPASS_CAPA) {
832 CERROR("bypass for index %d "DFID"\n",
833 i, PFID(&lci->lci_fid[i]));
836 DEBUG_CAPA(D_ERROR, lci->lci_capa[i], "index %d", i);
839 #endif /* DEBUG_CAPA */
843 int mdt_name_unpack(struct req_capsule *pill,
844 const struct req_msg_field *field,
846 enum mdt_name_flags flags)
848 ln->ln_name = req_capsule_client_get(pill, field);
849 ln->ln_namelen = req_capsule_get_size(pill, field, RCL_CLIENT) - 1;
851 if (!lu_name_is_valid(ln)) {
858 if ((flags & MNF_FIX_ANON) &&
859 ln->ln_namelen == 1 && ln->ln_name[0] == '/') {
860 /* Newer (3.x) kernels use a name of "/" for the
861 * "anonymous" disconnected dentries from NFS
862 * filehandle conversion. See d_obtain_alias(). */
870 static int mdt_setattr_unpack_rec(struct mdt_thread_info *info)
872 struct lu_ucred *uc = mdt_ucred(info);
873 struct md_attr *ma = &info->mti_attr;
874 struct lu_attr *la = &ma->ma_attr;
875 struct req_capsule *pill = info->mti_pill;
876 struct mdt_reint_record *rr = &info->mti_rr;
877 struct mdt_rec_setattr *rec;
880 CLASSERT(sizeof(struct mdt_rec_setattr)== sizeof(struct mdt_rec_reint));
881 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
885 /* This prior initialization is needed for old_init_ucred_reint() */
886 uc->uc_fsuid = rec->sa_fsuid;
887 uc->uc_fsgid = rec->sa_fsgid;
888 uc->uc_cap = rec->sa_cap;
889 uc->uc_suppgids[0] = rec->sa_suppgid;
890 uc->uc_suppgids[1] = -1;
892 rr->rr_fid1 = &rec->sa_fid;
893 la->la_valid = mdt_attr_valid_xlate(rec->sa_valid, rr, ma);
894 /* If MDS_ATTR_xTIME is set without MDS_ATTR_xTIME_SET and
895 * the client does not have OBD_CONNECT_FULL20, convert it
896 * to LA_xTIME. LU-3036 */
897 if (!(exp_connect_flags(info->mti_exp) & OBD_CONNECT_FULL20)) {
898 if (!(rec->sa_valid & MDS_ATTR_ATIME_SET) &&
899 (rec->sa_valid & MDS_ATTR_ATIME))
900 la->la_valid |= LA_ATIME;
901 if (!(rec->sa_valid & MDS_ATTR_MTIME_SET) &&
902 (rec->sa_valid & MDS_ATTR_MTIME))
903 la->la_valid |= LA_MTIME;
904 if (!(rec->sa_valid & MDS_ATTR_CTIME_SET) &&
905 (rec->sa_valid & MDS_ATTR_CTIME))
906 la->la_valid |= LA_CTIME;
908 la->la_mode = rec->sa_mode;
909 la->la_flags = rec->sa_attr_flags;
910 la->la_uid = rec->sa_uid;
911 la->la_gid = rec->sa_gid;
912 la->la_size = rec->sa_size;
913 la->la_blocks = rec->sa_blocks;
914 la->la_ctime = rec->sa_ctime;
915 la->la_atime = rec->sa_atime;
916 la->la_mtime = rec->sa_mtime;
917 ma->ma_valid = MA_INODE;
919 if (rec->sa_bias & MDS_DATA_MODIFIED)
920 ma->ma_attr_flags |= MDS_DATA_MODIFIED;
922 ma->ma_attr_flags &= ~MDS_DATA_MODIFIED;
924 if (rec->sa_bias & MDS_HSM_RELEASE)
925 ma->ma_attr_flags |= MDS_HSM_RELEASE;
927 ma->ma_attr_flags &= ~MDS_HSM_RELEASE;
929 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
930 mdt_set_capainfo(info, 0, rr->rr_fid1,
931 req_capsule_client_get(pill, &RMF_CAPA1));
936 static int mdt_ioepoch_unpack(struct mdt_thread_info *info)
938 struct req_capsule *pill = info->mti_pill;
941 if (req_capsule_get_size(pill, &RMF_MDT_EPOCH, RCL_CLIENT))
943 req_capsule_client_get(pill, &RMF_MDT_EPOCH);
945 info->mti_ioepoch = NULL;
946 RETURN(info->mti_ioepoch == NULL ? -EFAULT : 0);
949 static inline int mdt_dlmreq_unpack(struct mdt_thread_info *info) {
950 struct req_capsule *pill = info->mti_pill;
952 if (req_capsule_get_size(pill, &RMF_DLM_REQ, RCL_CLIENT)) {
953 info->mti_dlm_req = req_capsule_client_get(pill, &RMF_DLM_REQ);
954 if (info->mti_dlm_req == NULL)
961 static int mdt_setattr_unpack(struct mdt_thread_info *info)
963 struct mdt_reint_record *rr = &info->mti_rr;
964 struct md_attr *ma = &info->mti_attr;
965 struct req_capsule *pill = info->mti_pill;
969 rc = mdt_setattr_unpack_rec(info);
973 /* Epoch may be absent */
974 mdt_ioepoch_unpack(info);
976 if (req_capsule_field_present(pill, &RMF_EADATA, RCL_CLIENT)) {
977 rr->rr_eadata = req_capsule_client_get(pill, &RMF_EADATA);
978 rr->rr_eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
980 if (rr->rr_eadatalen > 0) {
981 const struct lmv_user_md *lum;
984 /* Sigh ma_valid(from req) does not indicate whether
985 * it will set LOV/LMV EA, so we have to check magic */
986 if (le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC) {
987 ma->ma_valid |= MA_LMV;
988 ma->ma_lmv = (void *)rr->rr_eadata;
989 ma->ma_lmv_size = rr->rr_eadatalen;
991 ma->ma_valid |= MA_LOV;
992 ma->ma_lmm = (void *)rr->rr_eadata;
993 ma->ma_lmm_size = rr->rr_eadatalen;
998 rc = mdt_dlmreq_unpack(info);
1002 static int mdt_hsm_release_unpack(struct mdt_thread_info *info)
1004 struct md_attr *ma = &info->mti_attr;
1005 struct req_capsule *pill = info->mti_pill;
1008 if (!(ma->ma_attr_flags & MDS_HSM_RELEASE))
1011 req_capsule_extend(pill, &RQF_MDS_RELEASE_CLOSE);
1013 if (!(req_capsule_has_field(pill, &RMF_CLOSE_DATA, RCL_CLIENT) &&
1014 req_capsule_field_present(pill, &RMF_CLOSE_DATA, RCL_CLIENT)))
1020 int mdt_close_unpack(struct mdt_thread_info *info)
1025 rc = mdt_ioepoch_unpack(info);
1029 rc = mdt_setattr_unpack_rec(info);
1033 rc = mdt_hsm_release_unpack(info);
1037 RETURN(mdt_init_ucred_reint(info));
1040 static int mdt_create_unpack(struct mdt_thread_info *info)
1042 struct lu_ucred *uc = mdt_ucred(info);
1043 struct mdt_rec_create *rec;
1044 struct lu_attr *attr = &info->mti_attr.ma_attr;
1045 struct mdt_reint_record *rr = &info->mti_rr;
1046 struct req_capsule *pill = info->mti_pill;
1047 struct md_op_spec *sp = &info->mti_spec;
1051 CLASSERT(sizeof(struct mdt_rec_create) == sizeof(struct mdt_rec_reint));
1052 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1056 /* This prior initialization is needed for old_init_ucred_reint() */
1057 uc->uc_fsuid = rec->cr_fsuid;
1058 uc->uc_fsgid = rec->cr_fsgid;
1059 uc->uc_cap = rec->cr_cap;
1060 uc->uc_suppgids[0] = rec->cr_suppgid1;
1061 uc->uc_suppgids[1] = -1;
1062 uc->uc_umask = rec->cr_umask;
1064 rr->rr_fid1 = &rec->cr_fid1;
1065 rr->rr_fid2 = &rec->cr_fid2;
1066 attr->la_mode = rec->cr_mode;
1067 attr->la_rdev = rec->cr_rdev;
1068 attr->la_uid = rec->cr_fsuid;
1069 attr->la_gid = rec->cr_fsgid;
1070 attr->la_ctime = rec->cr_time;
1071 attr->la_mtime = rec->cr_time;
1072 attr->la_atime = rec->cr_time;
1073 attr->la_valid = LA_MODE | LA_RDEV | LA_UID | LA_GID | LA_TYPE |
1074 LA_CTIME | LA_MTIME | LA_ATIME;
1075 memset(&sp->u, 0, sizeof(sp->u));
1076 sp->sp_cr_flags = get_mrc_cr_flags(rec);
1078 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1079 mdt_set_capainfo(info, 0, rr->rr_fid1,
1080 req_capsule_client_get(pill, &RMF_CAPA1));
1081 mdt_set_capainfo(info, 1, rr->rr_fid2, BYPASS_CAPA);
1083 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1087 if (S_ISLNK(attr->la_mode)) {
1088 const char *tgt = NULL;
1090 req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_SYM);
1091 if (req_capsule_get_size(pill, &RMF_SYMTGT, RCL_CLIENT)) {
1092 tgt = req_capsule_client_get(pill, &RMF_SYMTGT);
1093 sp->u.sp_symname = tgt;
1098 req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_RMT_ACL);
1099 if (S_ISDIR(attr->la_mode) &&
1100 req_capsule_get_size(pill, &RMF_EADATA, RCL_CLIENT) > 0) {
1101 sp->u.sp_ea.eadata =
1102 req_capsule_client_get(pill, &RMF_EADATA);
1103 sp->u.sp_ea.eadatalen =
1104 req_capsule_get_size(pill, &RMF_EADATA,
1106 sp->sp_cr_flags |= MDS_OPEN_HAS_EA;
1110 rc = mdt_dlmreq_unpack(info);
1114 static int mdt_link_unpack(struct mdt_thread_info *info)
1116 struct lu_ucred *uc = mdt_ucred(info);
1117 struct mdt_rec_link *rec;
1118 struct lu_attr *attr = &info->mti_attr.ma_attr;
1119 struct mdt_reint_record *rr = &info->mti_rr;
1120 struct req_capsule *pill = info->mti_pill;
1124 CLASSERT(sizeof(struct mdt_rec_link) == sizeof(struct mdt_rec_reint));
1125 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1129 /* This prior initialization is needed for old_init_ucred_reint() */
1130 uc->uc_fsuid = rec->lk_fsuid;
1131 uc->uc_fsgid = rec->lk_fsgid;
1132 uc->uc_cap = rec->lk_cap;
1133 uc->uc_suppgids[0] = rec->lk_suppgid1;
1134 uc->uc_suppgids[1] = rec->lk_suppgid2;
1136 attr->la_uid = rec->lk_fsuid;
1137 attr->la_gid = rec->lk_fsgid;
1138 rr->rr_fid1 = &rec->lk_fid1;
1139 rr->rr_fid2 = &rec->lk_fid2;
1140 attr->la_ctime = rec->lk_time;
1141 attr->la_mtime = rec->lk_time;
1142 attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME;
1144 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1145 mdt_set_capainfo(info, 0, rr->rr_fid1,
1146 req_capsule_client_get(pill, &RMF_CAPA1));
1147 if (req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT))
1148 mdt_set_capainfo(info, 1, rr->rr_fid2,
1149 req_capsule_client_get(pill, &RMF_CAPA2));
1151 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1155 rc = mdt_dlmreq_unpack(info);
1160 static int mdt_unlink_unpack(struct mdt_thread_info *info)
1162 struct lu_ucred *uc = mdt_ucred(info);
1163 struct mdt_rec_unlink *rec;
1164 struct md_attr *ma = &info->mti_attr;
1165 struct lu_attr *attr = &info->mti_attr.ma_attr;
1166 struct mdt_reint_record *rr = &info->mti_rr;
1167 struct req_capsule *pill = info->mti_pill;
1171 CLASSERT(sizeof(struct mdt_rec_unlink) == sizeof(struct mdt_rec_reint));
1172 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1176 /* This prior initialization is needed for old_init_ucred_reint() */
1177 uc->uc_fsuid = rec->ul_fsuid;
1178 uc->uc_fsgid = rec->ul_fsgid;
1179 uc->uc_cap = rec->ul_cap;
1180 uc->uc_suppgids[0] = rec->ul_suppgid1;
1181 uc->uc_suppgids[1] = -1;
1183 attr->la_uid = rec->ul_fsuid;
1184 attr->la_gid = rec->ul_fsgid;
1185 rr->rr_fid1 = &rec->ul_fid1;
1186 rr->rr_fid2 = &rec->ul_fid2;
1187 attr->la_ctime = rec->ul_time;
1188 attr->la_mtime = rec->ul_time;
1189 attr->la_mode = rec->ul_mode;
1190 attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME | LA_MODE;
1192 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1193 mdt_set_capainfo(info, 0, rr->rr_fid1,
1194 req_capsule_client_get(pill, &RMF_CAPA1));
1196 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1200 if (rec->ul_bias & MDS_VTX_BYPASS)
1201 ma->ma_attr_flags |= MDS_VTX_BYPASS;
1203 ma->ma_attr_flags &= ~MDS_VTX_BYPASS;
1205 info->mti_spec.no_create = !!req_is_replay(mdt_info_req(info));
1207 rc = mdt_dlmreq_unpack(info);
1211 static int mdt_rmentry_unpack(struct mdt_thread_info *info)
1213 info->mti_spec.sp_rm_entry = 1;
1214 return mdt_unlink_unpack(info);
1217 static int mdt_rename_unpack(struct mdt_thread_info *info)
1219 struct lu_ucred *uc = mdt_ucred(info);
1220 struct mdt_rec_rename *rec;
1221 struct md_attr *ma = &info->mti_attr;
1222 struct lu_attr *attr = &info->mti_attr.ma_attr;
1223 struct mdt_reint_record *rr = &info->mti_rr;
1224 struct req_capsule *pill = info->mti_pill;
1228 CLASSERT(sizeof(struct mdt_rec_rename) == sizeof(struct mdt_rec_reint));
1229 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1233 /* This prior initialization is needed for old_init_ucred_reint() */
1234 uc->uc_fsuid = rec->rn_fsuid;
1235 uc->uc_fsgid = rec->rn_fsgid;
1236 uc->uc_cap = rec->rn_cap;
1237 uc->uc_suppgids[0] = rec->rn_suppgid1;
1238 uc->uc_suppgids[1] = rec->rn_suppgid2;
1240 attr->la_uid = rec->rn_fsuid;
1241 attr->la_gid = rec->rn_fsgid;
1242 rr->rr_fid1 = &rec->rn_fid1;
1243 rr->rr_fid2 = &rec->rn_fid2;
1244 attr->la_ctime = rec->rn_time;
1245 attr->la_mtime = rec->rn_time;
1246 /* rename_tgt contains the mode already */
1247 attr->la_mode = rec->rn_mode;
1248 attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME | LA_MODE;
1250 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1251 mdt_set_capainfo(info, 0, rr->rr_fid1,
1252 req_capsule_client_get(pill, &RMF_CAPA1));
1253 if (req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT))
1254 mdt_set_capainfo(info, 1, rr->rr_fid2,
1255 req_capsule_client_get(pill, &RMF_CAPA2));
1257 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1261 rc = mdt_name_unpack(pill, &RMF_SYMTGT, &rr->rr_tgt_name, 0);
1265 if (rec->rn_bias & MDS_VTX_BYPASS)
1266 ma->ma_attr_flags |= MDS_VTX_BYPASS;
1268 ma->ma_attr_flags &= ~MDS_VTX_BYPASS;
1270 info->mti_spec.no_create = !!req_is_replay(mdt_info_req(info));
1273 rc = mdt_dlmreq_unpack(info);
1279 * please see comment above LOV_MAGIC_V1_DEF
1281 static void mdt_fix_lov_magic(struct mdt_thread_info *info)
1283 struct mdt_reint_record *rr = &info->mti_rr;
1284 struct lov_user_md_v1 *v1;
1286 v1 = (void *)rr->rr_eadata;
1289 if (unlikely(req_is_replay(mdt_info_req(info)))) {
1290 if (v1->lmm_magic == LOV_USER_MAGIC_V1) {
1291 v1->lmm_magic = LOV_MAGIC_V1_DEF;
1292 } else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V1)) {
1293 v1->lmm_magic = __swab32(LOV_MAGIC_V1_DEF);
1294 } else if (v1->lmm_magic == LOV_USER_MAGIC_V3) {
1295 v1->lmm_magic = LOV_MAGIC_V3_DEF;
1296 } else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V3)) {
1297 v1->lmm_magic = __swab32(LOV_MAGIC_V3_DEF);
1302 static int mdt_open_unpack(struct mdt_thread_info *info)
1304 struct lu_ucred *uc = mdt_ucred(info);
1305 struct mdt_rec_create *rec;
1306 struct lu_attr *attr = &info->mti_attr.ma_attr;
1307 struct req_capsule *pill = info->mti_pill;
1308 struct mdt_reint_record *rr = &info->mti_rr;
1309 struct ptlrpc_request *req = mdt_info_req(info);
1310 struct md_op_spec *sp = &info->mti_spec;
1313 CLASSERT(sizeof(struct mdt_rec_create) == sizeof(struct mdt_rec_reint));
1314 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1318 /* This prior initialization is needed for old_init_ucred_reint() */
1319 uc->uc_fsuid = rec->cr_fsuid;
1320 uc->uc_fsgid = rec->cr_fsgid;
1321 uc->uc_cap = rec->cr_cap;
1322 uc->uc_suppgids[0] = rec->cr_suppgid1;
1323 uc->uc_suppgids[1] = rec->cr_suppgid2;
1324 uc->uc_umask = rec->cr_umask;
1326 rr->rr_fid1 = &rec->cr_fid1;
1327 rr->rr_fid2 = &rec->cr_fid2;
1328 rr->rr_handle = &rec->cr_old_handle;
1329 attr->la_mode = rec->cr_mode;
1330 attr->la_rdev = rec->cr_rdev;
1331 attr->la_uid = rec->cr_fsuid;
1332 attr->la_gid = rec->cr_fsgid;
1333 attr->la_ctime = rec->cr_time;
1334 attr->la_mtime = rec->cr_time;
1335 attr->la_atime = rec->cr_time;
1336 attr->la_valid = LA_MODE | LA_RDEV | LA_UID | LA_GID |
1337 LA_CTIME | LA_MTIME | LA_ATIME;
1338 memset(&info->mti_spec.u, 0, sizeof(info->mti_spec.u));
1339 info->mti_spec.sp_cr_flags = get_mrc_cr_flags(rec);
1340 /* Do not trigger ASSERTION if client miss to set such flags. */
1341 if (unlikely(info->mti_spec.sp_cr_flags == 0))
1343 info->mti_replayepoch = rec->cr_ioepoch;
1345 info->mti_cross_ref = !!(rec->cr_bias & MDS_CROSS_REF);
1347 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1348 mdt_set_capainfo(info, 0, rr->rr_fid1,
1349 req_capsule_client_get(pill, &RMF_CAPA1));
1350 if (req_is_replay(req) &&
1351 req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT)) {
1353 mdt_set_capainfo(info, 1, rr->rr_fid2,
1354 req_capsule_client_get(pill, &RMF_CAPA2));
1357 * FIXME: capa in replay open request might have expired,
1358 * bypass capa check. Security hole?
1360 mdt_set_capainfo(info, 0, rr->rr_fid1, BYPASS_CAPA);
1361 mdt_set_capainfo(info, 1, rr->rr_fid2, BYPASS_CAPA);
1365 mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, MNF_FIX_ANON);
1367 if (req_capsule_field_present(pill, &RMF_EADATA, RCL_CLIENT)) {
1368 rr->rr_eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
1370 if (rr->rr_eadatalen > 0) {
1371 rr->rr_eadata = req_capsule_client_get(pill,
1373 sp->u.sp_ea.eadatalen = rr->rr_eadatalen;
1374 sp->u.sp_ea.eadata = rr->rr_eadata;
1375 sp->no_create = !!req_is_replay(req);
1376 mdt_fix_lov_magic(info);
1380 * Client default md_size may be 0 right after client start,
1381 * until all osc are connected, set here just some reasonable
1382 * value to prevent misbehavior.
1384 if (rr->rr_eadatalen == 0 &&
1385 !(info->mti_spec.sp_cr_flags & MDS_OPEN_DELAY_CREATE))
1386 rr->rr_eadatalen = MIN_MD_SIZE;
1392 static int mdt_setxattr_unpack(struct mdt_thread_info *info)
1394 struct mdt_reint_record *rr = &info->mti_rr;
1395 struct lu_ucred *uc = mdt_ucred(info);
1396 struct lu_attr *attr = &info->mti_attr.ma_attr;
1397 struct req_capsule *pill = info->mti_pill;
1398 struct mdt_rec_setxattr *rec;
1403 CLASSERT(sizeof(struct mdt_rec_setxattr) ==
1404 sizeof(struct mdt_rec_reint));
1406 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1410 /* This prior initialization is needed for old_init_ucred_reint() */
1411 uc->uc_fsuid = rec->sx_fsuid;
1412 uc->uc_fsgid = rec->sx_fsgid;
1413 uc->uc_cap = rec->sx_cap;
1414 uc->uc_suppgids[0] = rec->sx_suppgid1;
1415 uc->uc_suppgids[1] = -1;
1417 rr->rr_opcode = rec->sx_opcode;
1418 rr->rr_fid1 = &rec->sx_fid;
1419 attr->la_valid = rec->sx_valid;
1420 attr->la_ctime = rec->sx_time;
1421 attr->la_size = rec->sx_size;
1422 attr->la_flags = rec->sx_flags;
1424 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1425 mdt_set_capainfo(info, 0, rr->rr_fid1,
1426 req_capsule_client_get(pill, &RMF_CAPA1));
1428 mdt_set_capainfo(info, 0, rr->rr_fid1, BYPASS_CAPA);
1430 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1434 if (req_capsule_field_present(pill, &RMF_EADATA, RCL_CLIENT)) {
1435 rr->rr_eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
1437 if (rr->rr_eadatalen > 0) {
1438 rr->rr_eadata = req_capsule_client_get(pill,
1440 if (rr->rr_eadata == NULL)
1443 rr->rr_eadata = NULL;
1445 } else if (!(attr->la_valid & OBD_MD_FLXATTRRM)) {
1446 CDEBUG(D_INFO, "no xattr data supplied\n");
1450 if (mdt_dlmreq_unpack(info) < 0)
1457 typedef int (*reint_unpacker)(struct mdt_thread_info *info);
1459 static reint_unpacker mdt_reint_unpackers[REINT_MAX] = {
1460 [REINT_SETATTR] = mdt_setattr_unpack,
1461 [REINT_CREATE] = mdt_create_unpack,
1462 [REINT_LINK] = mdt_link_unpack,
1463 [REINT_UNLINK] = mdt_unlink_unpack,
1464 [REINT_RENAME] = mdt_rename_unpack,
1465 [REINT_OPEN] = mdt_open_unpack,
1466 [REINT_SETXATTR] = mdt_setxattr_unpack,
1467 [REINT_RMENTRY] = mdt_rmentry_unpack,
1468 [REINT_MIGRATE] = mdt_rename_unpack,
1471 int mdt_reint_unpack(struct mdt_thread_info *info, __u32 op)
1476 memset(&info->mti_rr, 0, sizeof(info->mti_rr));
1477 if (op < REINT_MAX && mdt_reint_unpackers[op] != NULL) {
1478 info->mti_rr.rr_opcode = op;
1479 rc = mdt_reint_unpackers[op](info);
1481 CERROR("Unexpected opcode %d\n", op);