4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2013, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/mdt/mdt_lib.c
38 * Lustre Metadata Target (mdt) request unpacking helper.
40 * Author: Peter Braam <braam@clusterfs.com>
41 * Author: Andreas Dilger <adilger@clusterfs.com>
42 * Author: Phil Schwan <phil@clusterfs.com>
43 * Author: Mike Shaver <shaver@clusterfs.com>
44 * Author: Nikita Danilov <nikita@clusterfs.com>
45 * Author: Huang Hua <huanghua@clusterfs.com>
46 * Author: Fan Yong <fanyong@clusterfs.com>
49 #define DEBUG_SUBSYSTEM S_MDS
51 #include "mdt_internal.h"
52 #include <lnet/lib-lnet.h>
55 typedef enum ucred_init_type {
61 void mdt_exit_ucred(struct mdt_thread_info *info)
63 struct lu_ucred *uc = mdt_ucred(info);
64 struct mdt_device *mdt = info->mti_mdt;
67 if (uc->uc_valid != UCRED_INIT) {
68 uc->uc_suppgids[0] = uc->uc_suppgids[1] = -1;
70 put_group_info(uc->uc_ginfo);
73 if (uc->uc_identity) {
74 mdt_identity_put(mdt->mdt_identity_cache,
76 uc->uc_identity = NULL;
78 uc->uc_valid = UCRED_INIT;
82 static int match_nosquash_list(struct rw_semaphore *sem,
89 rc = cfs_match_nid(peernid, nidlist);
94 /* root_squash for inter-MDS operations */
95 static int mdt_root_squash(struct mdt_thread_info *info, lnet_nid_t peernid)
97 struct lu_ucred *ucred = mdt_ucred(info);
100 LASSERT(ucred != NULL);
101 if (!info->mti_mdt->mdt_squash_uid || ucred->uc_fsuid)
104 if (match_nosquash_list(&info->mti_mdt->mdt_squash_sem,
105 &info->mti_mdt->mdt_nosquash_nids,
107 CDEBUG(D_OTHER, "%s is in nosquash_nids list\n",
108 libcfs_nid2str(peernid));
112 CDEBUG(D_OTHER, "squash req from %s, (%d:%d/%x)=>(%d:%d/%x)\n",
113 libcfs_nid2str(peernid),
114 ucred->uc_fsuid, ucred->uc_fsgid, ucred->uc_cap,
115 info->mti_mdt->mdt_squash_uid, info->mti_mdt->mdt_squash_gid,
118 ucred->uc_fsuid = info->mti_mdt->mdt_squash_uid;
119 ucred->uc_fsgid = info->mti_mdt->mdt_squash_gid;
121 ucred->uc_suppgids[0] = -1;
122 ucred->uc_suppgids[1] = -1;
127 static int new_init_ucred(struct mdt_thread_info *info, ucred_init_type_t type,
130 struct ptlrpc_request *req = mdt_info_req(info);
131 struct mdt_device *mdt = info->mti_mdt;
132 struct ptlrpc_user_desc *pud = req->rq_user_desc;
133 struct lu_ucred *ucred = mdt_ucred(info);
134 lnet_nid_t peernid = req->rq_peer.nid;
136 __u32 remote = exp_connect_rmtclient(info->mti_exp);
143 LASSERT(req->rq_auth_gss);
144 LASSERT(!req->rq_auth_usr_mdt);
145 LASSERT(req->rq_user_desc);
146 LASSERT(ucred != NULL);
148 ucred->uc_valid = UCRED_INVALID;
150 ucred->uc_o_uid = pud->pud_uid;
151 ucred->uc_o_gid = pud->pud_gid;
152 ucred->uc_o_fsuid = pud->pud_fsuid;
153 ucred->uc_o_fsgid = pud->pud_fsgid;
155 if (type == BODY_INIT) {
156 struct mdt_body *body = (struct mdt_body *)buf;
158 ucred->uc_suppgids[0] = body->suppgid;
159 ucred->uc_suppgids[1] = -1;
162 /* sanity check: we expect the uid which client claimed is true */
164 if (req->rq_auth_mapped_uid == INVALID_UID) {
165 CDEBUG(D_SEC, "remote user not mapped, deny access!\n");
169 if (ptlrpc_user_desc_do_idmap(req, pud))
172 if (req->rq_auth_mapped_uid != pud->pud_uid) {
173 CDEBUG(D_SEC, "remote client %s: auth/mapped uid %u/%u "
174 "while client claims %u:%u/%u:%u\n",
175 libcfs_nid2str(peernid), req->rq_auth_uid,
176 req->rq_auth_mapped_uid,
177 pud->pud_uid, pud->pud_gid,
178 pud->pud_fsuid, pud->pud_fsgid);
182 if (req->rq_auth_uid != pud->pud_uid) {
183 CDEBUG(D_SEC, "local client %s: auth uid %u "
184 "while client claims %u:%u/%u:%u\n",
185 libcfs_nid2str(peernid), req->rq_auth_uid,
186 pud->pud_uid, pud->pud_gid,
187 pud->pud_fsuid, pud->pud_fsgid);
192 if (is_identity_get_disabled(mdt->mdt_identity_cache)) {
194 CDEBUG(D_SEC, "remote client must run with identity_get "
198 ucred->uc_identity = NULL;
199 perm = CFS_SETUID_PERM | CFS_SETGID_PERM |
203 struct md_identity *identity;
205 identity = mdt_identity_get(mdt->mdt_identity_cache,
207 if (IS_ERR(identity)) {
208 if (unlikely(PTR_ERR(identity) == -EREMCHG &&
210 ucred->uc_identity = NULL;
211 perm = CFS_SETUID_PERM | CFS_SETGID_PERM |
214 CDEBUG(D_SEC, "Deny access without identity: uid %u\n",
219 ucred->uc_identity = identity;
220 perm = mdt_identity_get_perm(ucred->uc_identity,
225 /* find out the setuid/setgid attempt */
226 setuid = (pud->pud_uid != pud->pud_fsuid);
227 setgid = ((pud->pud_gid != pud->pud_fsgid) ||
228 (ucred->uc_identity &&
229 (pud->pud_gid != ucred->uc_identity->mi_gid)));
231 /* check permission of setuid */
232 if (setuid && !(perm & CFS_SETUID_PERM)) {
233 CDEBUG(D_SEC, "mdt blocked setuid attempt (%u -> %u) from %s\n",
234 pud->pud_uid, pud->pud_fsuid, libcfs_nid2str(peernid));
235 GOTO(out, rc = -EACCES);
238 /* check permission of setgid */
239 if (setgid && !(perm & CFS_SETGID_PERM)) {
240 CDEBUG(D_SEC, "mdt blocked setgid attempt (%u:%u/%u:%u -> %u) "
241 "from %s\n", pud->pud_uid, pud->pud_gid,
242 pud->pud_fsuid, pud->pud_fsgid,
243 ucred->uc_identity->mi_gid, libcfs_nid2str(peernid));
244 GOTO(out, rc = -EACCES);
248 * NB: remote client not allowed to setgroups anyway.
250 if (!remote && perm & CFS_SETGRP_PERM) {
251 if (pud->pud_ngroups) {
252 /* setgroups for local client */
253 ucred->uc_ginfo = groups_alloc(pud->pud_ngroups);
254 if (!ucred->uc_ginfo) {
255 CERROR("failed to alloc %d groups\n",
257 GOTO(out, rc = -ENOMEM);
260 lustre_groups_from_list(ucred->uc_ginfo,
262 lustre_groups_sort(ucred->uc_ginfo);
264 ucred->uc_ginfo = NULL;
267 ucred->uc_suppgids[0] = -1;
268 ucred->uc_suppgids[1] = -1;
269 ucred->uc_ginfo = NULL;
272 ucred->uc_uid = pud->pud_uid;
273 ucred->uc_gid = pud->pud_gid;
274 ucred->uc_fsuid = pud->pud_fsuid;
275 ucred->uc_fsgid = pud->pud_fsgid;
277 /* process root_squash here. */
278 mdt_root_squash(info, peernid);
280 /* remove fs privilege for non-root user. */
282 ucred->uc_cap = pud->pud_cap & ~CFS_CAP_FS_MASK;
284 ucred->uc_cap = pud->pud_cap;
285 if (remote && !(perm & CFS_RMTOWN_PERM))
286 ucred->uc_cap &= ~(CFS_CAP_SYS_RESOURCE_MASK |
288 ucred->uc_valid = UCRED_NEW;
294 if (ucred->uc_ginfo) {
295 put_group_info(ucred->uc_ginfo);
296 ucred->uc_ginfo = NULL;
298 if (ucred->uc_identity) {
299 mdt_identity_put(mdt->mdt_identity_cache,
301 ucred->uc_identity = NULL;
308 int mdt_check_ucred(struct mdt_thread_info *info)
310 struct ptlrpc_request *req = mdt_info_req(info);
311 struct mdt_device *mdt = info->mti_mdt;
312 struct ptlrpc_user_desc *pud = req->rq_user_desc;
313 struct lu_ucred *ucred = mdt_ucred(info);
314 struct md_identity *identity = NULL;
315 lnet_nid_t peernid = req->rq_peer.nid;
317 __u32 remote = exp_connect_rmtclient(info->mti_exp);
324 LASSERT(ucred != NULL);
325 if ((ucred->uc_valid == UCRED_OLD) || (ucred->uc_valid == UCRED_NEW))
328 if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
331 /* sanity check: if we use strong authentication, we expect the
332 * uid which client claimed is true */
334 if (req->rq_auth_mapped_uid == INVALID_UID) {
335 CDEBUG(D_SEC, "remote user not mapped, deny access!\n");
339 if (ptlrpc_user_desc_do_idmap(req, pud))
342 if (req->rq_auth_mapped_uid != pud->pud_uid) {
343 CDEBUG(D_SEC, "remote client %s: auth/mapped uid %u/%u "
344 "while client claims %u:%u/%u:%u\n",
345 libcfs_nid2str(peernid), req->rq_auth_uid,
346 req->rq_auth_mapped_uid,
347 pud->pud_uid, pud->pud_gid,
348 pud->pud_fsuid, pud->pud_fsgid);
352 if (req->rq_auth_uid != pud->pud_uid) {
353 CDEBUG(D_SEC, "local client %s: auth uid %u "
354 "while client claims %u:%u/%u:%u\n",
355 libcfs_nid2str(peernid), req->rq_auth_uid,
356 pud->pud_uid, pud->pud_gid,
357 pud->pud_fsuid, pud->pud_fsgid);
362 if (is_identity_get_disabled(mdt->mdt_identity_cache)) {
364 CDEBUG(D_SEC, "remote client must run with identity_get "
371 identity = mdt_identity_get(mdt->mdt_identity_cache, pud->pud_uid);
372 if (IS_ERR(identity)) {
373 if (unlikely(PTR_ERR(identity) == -EREMCHG &&
377 CDEBUG(D_SEC, "Deny access without identity: uid %u\n",
383 perm = mdt_identity_get_perm(identity, remote, peernid);
384 /* find out the setuid/setgid attempt */
385 setuid = (pud->pud_uid != pud->pud_fsuid);
386 setgid = (pud->pud_gid != pud->pud_fsgid ||
387 pud->pud_gid != identity->mi_gid);
389 /* check permission of setuid */
390 if (setuid && !(perm & CFS_SETUID_PERM)) {
391 CDEBUG(D_SEC, "mdt blocked setuid attempt (%u -> %u) from %s\n",
392 pud->pud_uid, pud->pud_fsuid, libcfs_nid2str(peernid));
393 GOTO(out, rc = -EACCES);
396 /* check permission of setgid */
397 if (setgid && !(perm & CFS_SETGID_PERM)) {
398 CDEBUG(D_SEC, "mdt blocked setgid attempt (%u:%u/%u:%u -> %u) "
399 "from %s\n", pud->pud_uid, pud->pud_gid,
400 pud->pud_fsuid, pud->pud_fsgid, identity->mi_gid,
401 libcfs_nid2str(peernid));
402 GOTO(out, rc = -EACCES);
408 mdt_identity_put(mdt->mdt_identity_cache, identity);
412 static int old_init_ucred(struct mdt_thread_info *info,
413 struct mdt_body *body)
415 struct lu_ucred *uc = mdt_ucred(info);
416 struct mdt_device *mdt = info->mti_mdt;
417 struct md_identity *identity = NULL;
422 uc->uc_valid = UCRED_INVALID;
423 uc->uc_o_uid = uc->uc_uid = body->uid;
424 uc->uc_o_gid = uc->uc_gid = body->gid;
425 uc->uc_o_fsuid = uc->uc_fsuid = body->fsuid;
426 uc->uc_o_fsgid = uc->uc_fsgid = body->fsgid;
427 uc->uc_suppgids[0] = body->suppgid;
428 uc->uc_suppgids[1] = -1;
430 if (!is_identity_get_disabled(mdt->mdt_identity_cache)) {
431 identity = mdt_identity_get(mdt->mdt_identity_cache,
433 if (IS_ERR(identity)) {
434 if (unlikely(PTR_ERR(identity) == -EREMCHG)) {
437 CDEBUG(D_SEC, "Deny access without identity: "
438 "uid %u\n", uc->uc_fsuid);
443 uc->uc_identity = identity;
445 /* process root_squash here. */
446 mdt_root_squash(info, mdt_info_req(info)->rq_peer.nid);
448 /* remove fs privilege for non-root user. */
450 uc->uc_cap = body->capability & ~CFS_CAP_FS_MASK;
452 uc->uc_cap = body->capability;
453 uc->uc_valid = UCRED_OLD;
458 static int old_init_ucred_reint(struct mdt_thread_info *info)
460 struct lu_ucred *uc = mdt_ucred(info);
461 struct mdt_device *mdt = info->mti_mdt;
462 struct md_identity *identity = NULL;
467 uc->uc_valid = UCRED_INVALID;
468 uc->uc_o_uid = uc->uc_o_fsuid = uc->uc_uid = uc->uc_fsuid;
469 uc->uc_o_gid = uc->uc_o_fsgid = uc->uc_gid = uc->uc_fsgid;
471 if (!is_identity_get_disabled(mdt->mdt_identity_cache)) {
472 identity = mdt_identity_get(mdt->mdt_identity_cache,
474 if (IS_ERR(identity)) {
475 if (unlikely(PTR_ERR(identity) == -EREMCHG)) {
478 CDEBUG(D_SEC, "Deny access without identity: "
479 "uid %u\n", uc->uc_fsuid);
484 uc->uc_identity = identity;
486 /* process root_squash here. */
487 mdt_root_squash(info, mdt_info_req(info)->rq_peer.nid);
489 /* remove fs privilege for non-root user. */
491 uc->uc_cap &= ~CFS_CAP_FS_MASK;
492 uc->uc_valid = UCRED_OLD;
497 int mdt_init_ucred(struct mdt_thread_info *info, struct mdt_body *body)
499 struct ptlrpc_request *req = mdt_info_req(info);
500 struct lu_ucred *uc = mdt_ucred(info);
503 if ((uc->uc_valid == UCRED_OLD) || (uc->uc_valid == UCRED_NEW))
506 mdt_exit_ucred(info);
508 if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
509 return old_init_ucred(info, body);
511 return new_init_ucred(info, BODY_INIT, body);
514 int mdt_init_ucred_reint(struct mdt_thread_info *info)
516 struct ptlrpc_request *req = mdt_info_req(info);
517 struct lu_ucred *uc = mdt_ucred(info);
520 if ((uc->uc_valid == UCRED_OLD) || (uc->uc_valid == UCRED_NEW))
523 mdt_exit_ucred(info);
525 if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
526 return old_init_ucred_reint(info);
528 return new_init_ucred(info, REC_INIT, NULL);
531 /* copied from lov/lov_ea.c, just for debugging, will be removed later */
532 void mdt_dump_lmm(int level, const struct lov_mds_md *lmm)
534 const struct lov_ost_data_v1 *lod;
538 count = le16_to_cpu(((struct lov_user_md*)lmm)->lmm_stripe_count);
540 CDEBUG(level, "objid "DOSTID", magic 0x%08X, pattern %#X\n",
541 POSTID(&lmm->lmm_oi), le32_to_cpu(lmm->lmm_magic),
542 le32_to_cpu(lmm->lmm_pattern));
543 CDEBUG(level,"stripe_size=0x%x, stripe_count=0x%x\n",
544 le32_to_cpu(lmm->lmm_stripe_size), count);
545 if (count == LOV_ALL_STRIPES ||
546 le32_to_cpu(lmm->lmm_pattern) & LOV_PATTERN_F_RELEASED)
549 LASSERT(count <= LOV_MAX_STRIPE_COUNT);
550 for (i = 0, lod = lmm->lmm_objects; i < count; i++, lod++) {
552 ostid_le_to_cpu(&lod->l_ost_oi, &oi);
553 CDEBUG(level, "stripe %u idx %u subobj "DOSTID"\n",
554 i, le32_to_cpu(lod->l_ost_idx), POSTID(&oi));
558 /* Shrink and/or grow reply buffers */
559 int mdt_fix_reply(struct mdt_thread_info *info)
561 struct req_capsule *pill = info->mti_pill;
562 struct mdt_body *body;
563 int md_size, md_packed = 0;
568 body = req_capsule_server_get(pill, &RMF_MDT_BODY);
569 LASSERT(body != NULL);
571 if (body->valid & (OBD_MD_FLDIREA | OBD_MD_FLEASIZE | OBD_MD_LINKNAME))
572 md_size = body->eadatasize;
576 acl_size = body->aclsize;
578 /* this replay - not send info to client */
579 if (info->mti_spec.no_create) {
584 CDEBUG(D_INFO, "Shrink to md_size = %d cookie/acl_size = %d"
585 " MDSCAPA = %llx, OSSCAPA = %llx\n",
587 (unsigned long long)(body->valid & OBD_MD_FLMDSCAPA),
588 (unsigned long long)(body->valid & OBD_MD_FLOSSCAPA));
592 &RMF_ACL, or &RMF_LOGCOOKIES
593 (optional) &RMF_CAPA1,
594 (optional) &RMF_CAPA2,
595 (optional) something else
598 /* MDT_MD buffer may be bigger than packed value, let's shrink all
599 * buffers before growing it */
600 if (info->mti_big_lmm_used) {
601 LASSERT(req_capsule_has_field(pill, &RMF_MDT_MD, RCL_SERVER));
602 md_packed = req_capsule_get_size(pill, &RMF_MDT_MD,
604 LASSERT(md_packed > 0);
605 /* buffer must be allocated separately */
606 LASSERT(info->mti_attr.ma_lmm !=
607 req_capsule_server_get(pill, &RMF_MDT_MD));
608 req_capsule_shrink(pill, &RMF_MDT_MD, 0, RCL_SERVER);
609 /* free big lmm if md_size is not needed */
611 info->mti_big_lmm_used = 0;
612 } else if (req_capsule_has_field(pill, &RMF_MDT_MD, RCL_SERVER)) {
613 req_capsule_shrink(pill, &RMF_MDT_MD, md_size, RCL_SERVER);
616 if (req_capsule_has_field(pill, &RMF_ACL, RCL_SERVER))
617 req_capsule_shrink(pill, &RMF_ACL, acl_size, RCL_SERVER);
618 else if (req_capsule_has_field(pill, &RMF_LOGCOOKIES, RCL_SERVER))
619 req_capsule_shrink(pill, &RMF_LOGCOOKIES,
620 acl_size, RCL_SERVER);
622 if (req_capsule_has_field(pill, &RMF_CAPA1, RCL_SERVER) &&
623 !(body->valid & OBD_MD_FLMDSCAPA))
624 req_capsule_shrink(pill, &RMF_CAPA1, 0, RCL_SERVER);
626 if (req_capsule_has_field(pill, &RMF_CAPA2, RCL_SERVER) &&
627 !(body->valid & OBD_MD_FLOSSCAPA))
628 req_capsule_shrink(pill, &RMF_CAPA2, 0, RCL_SERVER);
631 * Some more field should be shrinked if needed.
632 * This should be done by those who added fields to reply message.
635 /* Grow MD buffer if needed finally */
636 if (info->mti_big_lmm_used) {
639 LASSERT(md_size > md_packed);
640 CDEBUG(D_INFO, "Enlarge reply buffer, need extra %d bytes\n",
641 md_size - md_packed);
642 rc = req_capsule_server_grow(pill, &RMF_MDT_MD, md_size);
644 /* we can't answer with proper LOV EA, drop flags,
645 * the rc is also returned so this request is
646 * considered as failed */
647 body->valid &= ~(OBD_MD_FLDIREA | OBD_MD_FLEASIZE);
648 /* don't return transno along with error */
649 lustre_msg_set_transno(pill->rc_req->rq_repmsg, 0);
651 /* now we need to pack right LOV/LMV EA */
652 lmm = req_capsule_server_get(pill, &RMF_MDT_MD);
653 if (info->mti_attr.ma_valid & MA_LOV) {
654 LASSERT(req_capsule_get_size(pill, &RMF_MDT_MD,
656 info->mti_attr.ma_lmm_size);
657 memcpy(lmm, info->mti_attr.ma_lmm,
658 info->mti_attr.ma_lmm_size);
659 } else if (info->mti_attr.ma_valid & MA_LMV) {
660 LASSERT(req_capsule_get_size(pill, &RMF_MDT_MD,
662 info->mti_attr.ma_lmv_size);
663 memcpy(lmm, info->mti_attr.ma_lmv,
664 info->mti_attr.ma_lmv_size);
667 /* update mdt_max_mdsize so clients will be aware about that */
668 if (info->mti_mdt->mdt_max_mdsize < info->mti_attr.ma_lmm_size)
669 info->mti_mdt->mdt_max_mdsize =
670 info->mti_attr.ma_lmm_size;
671 info->mti_big_lmm_used = 0;
677 /* if object is dying, pack the lov/llog data,
678 * parameter info->mti_attr should be valid at this point! */
679 int mdt_handle_last_unlink(struct mdt_thread_info *info, struct mdt_object *mo,
680 const struct md_attr *ma)
682 struct mdt_body *repbody;
683 const struct lu_attr *la = &ma->ma_attr;
687 repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
688 LASSERT(repbody != NULL);
690 if (ma->ma_valid & MA_INODE)
691 mdt_pack_attr2body(info, repbody, la, mdt_object_fid(mo));
693 if (ma->ma_valid & MA_LOV) {
694 CERROR("No need in LOV EA upon unlink\n");
697 repbody->eadatasize = 0;
699 if (ma->ma_cookie_size && (ma->ma_valid & MA_COOKIE)) {
700 repbody->aclsize = ma->ma_cookie_size;
701 repbody->valid |= OBD_MD_FLCOOKIE;
704 if (info->mti_mdt->mdt_lut.lut_oss_capa &&
705 exp_connect_flags(info->mti_exp) & OBD_CONNECT_OSS_CAPA &&
706 repbody->valid & OBD_MD_FLEASIZE) {
707 struct lustre_capa *capa;
709 capa = req_capsule_server_get(info->mti_pill, &RMF_CAPA2);
711 capa->lc_opc = CAPA_OPC_OSS_DESTROY;
712 rc = mo_capa_get(info->mti_env, mdt_object_child(mo), capa, 0);
716 repbody->valid |= OBD_MD_FLOSSCAPA;
722 static __u64 mdt_attr_valid_xlate(__u64 in, struct mdt_reint_record *rr,
728 if (in & MDS_ATTR_MODE)
730 if (in & MDS_ATTR_UID)
732 if (in & MDS_ATTR_GID)
734 if (in & MDS_ATTR_SIZE)
736 if (in & MDS_ATTR_BLOCKS)
738 if (in & MDS_ATTR_ATIME_SET)
740 if (in & MDS_ATTR_CTIME_SET)
742 if (in & MDS_ATTR_MTIME_SET)
744 if (in & MDS_ATTR_ATTR_FLAG)
746 if (in & MDS_ATTR_KILL_SUID)
748 if (in & MDS_ATTR_KILL_SGID)
751 if (in & MDS_ATTR_FROM_OPEN)
752 rr->rr_flags |= MRF_OPEN_TRUNC;
753 if (in & MDS_OPEN_OWNEROVERRIDE)
754 ma->ma_attr_flags |= MDS_OWNEROVERRIDE;
755 if (in & MDS_ATTR_FORCE)
756 ma->ma_attr_flags |= MDS_PERM_BYPASS;
758 in &= ~(MDS_ATTR_MODE | MDS_ATTR_UID | MDS_ATTR_GID |
759 MDS_ATTR_ATIME | MDS_ATTR_MTIME | MDS_ATTR_CTIME |
760 MDS_ATTR_ATIME_SET | MDS_ATTR_CTIME_SET | MDS_ATTR_MTIME_SET |
761 MDS_ATTR_SIZE | MDS_ATTR_BLOCKS | MDS_ATTR_ATTR_FLAG |
762 MDS_ATTR_FORCE | MDS_ATTR_KILL_SUID | MDS_ATTR_KILL_SGID |
763 MDS_ATTR_FROM_OPEN | MDS_OPEN_OWNEROVERRIDE);
765 CERROR("Unknown attr bits: "LPX64"\n", in);
769 void mdt_set_capainfo(struct mdt_thread_info *info, int offset,
770 const struct lu_fid *fid, struct lustre_capa *capa)
772 struct lu_capainfo *lci;
774 LASSERT(offset >= 0 && offset < LU_CAPAINFO_MAX);
775 if (!info->mti_mdt->mdt_lut.lut_mds_capa ||
776 !(exp_connect_flags(info->mti_exp) & OBD_CONNECT_MDS_CAPA))
779 lci = lu_capainfo_get(info->mti_env);
781 lci->lci_fid[offset] = *fid;
782 lci->lci_capa[offset] = capa;
786 void mdt_dump_capainfo(struct mdt_thread_info *info)
788 struct lu_capainfo *lci = lu_capainfo_get(info->mti_env);
794 for (i = 0; i < LU_CAPAINFO_MAX; i++) {
795 if (lci->lci_capa[i] == NULL) {
796 CERROR("no capa for index %d "DFID"\n",
797 i, PFID(&lci->lci_fid[i]));
800 if (lci->lci_capa[i] == BYPASS_CAPA) {
801 CERROR("bypass for index %d "DFID"\n",
802 i, PFID(&lci->lci_fid[i]));
805 DEBUG_CAPA(D_ERROR, lci->lci_capa[i], "index %d", i);
808 #endif /* DEBUG_CAPA */
812 int mdt_name_unpack(struct req_capsule *pill,
813 const struct req_msg_field *field,
815 enum mdt_name_flags flags)
817 ln->ln_name = req_capsule_client_get(pill, field);
818 ln->ln_namelen = req_capsule_get_size(pill, field, RCL_CLIENT) - 1;
820 if (!lu_name_is_valid(ln)) {
827 if ((flags & MNF_FIX_ANON) &&
828 ln->ln_namelen == 1 && ln->ln_name[0] == '/') {
829 /* Newer (3.x) kernels use a name of "/" for the
830 * "anonymous" disconnected dentries from NFS
831 * filehandle conversion. See d_obtain_alias(). */
839 static int mdt_setattr_unpack_rec(struct mdt_thread_info *info)
841 struct lu_ucred *uc = mdt_ucred(info);
842 struct md_attr *ma = &info->mti_attr;
843 struct lu_attr *la = &ma->ma_attr;
844 struct req_capsule *pill = info->mti_pill;
845 struct mdt_reint_record *rr = &info->mti_rr;
846 struct mdt_rec_setattr *rec;
849 CLASSERT(sizeof(struct mdt_rec_setattr)== sizeof(struct mdt_rec_reint));
850 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
854 /* This prior initialization is needed for old_init_ucred_reint() */
855 uc->uc_fsuid = rec->sa_fsuid;
856 uc->uc_fsgid = rec->sa_fsgid;
857 uc->uc_cap = rec->sa_cap;
858 uc->uc_suppgids[0] = rec->sa_suppgid;
859 uc->uc_suppgids[1] = -1;
861 rr->rr_fid1 = &rec->sa_fid;
862 la->la_valid = mdt_attr_valid_xlate(rec->sa_valid, rr, ma);
863 /* If MDS_ATTR_xTIME is set without MDS_ATTR_xTIME_SET and
864 * the client does not have OBD_CONNECT_FULL20, convert it
865 * to LA_xTIME. LU-3036 */
866 if (!(exp_connect_flags(info->mti_exp) & OBD_CONNECT_FULL20)) {
867 if (!(rec->sa_valid & MDS_ATTR_ATIME_SET) &&
868 (rec->sa_valid & MDS_ATTR_ATIME))
869 la->la_valid |= LA_ATIME;
870 if (!(rec->sa_valid & MDS_ATTR_MTIME_SET) &&
871 (rec->sa_valid & MDS_ATTR_MTIME))
872 la->la_valid |= LA_MTIME;
873 if (!(rec->sa_valid & MDS_ATTR_CTIME_SET) &&
874 (rec->sa_valid & MDS_ATTR_CTIME))
875 la->la_valid |= LA_CTIME;
877 la->la_mode = rec->sa_mode;
878 la->la_flags = rec->sa_attr_flags;
879 la->la_uid = rec->sa_uid;
880 la->la_gid = rec->sa_gid;
881 la->la_size = rec->sa_size;
882 la->la_blocks = rec->sa_blocks;
883 la->la_ctime = rec->sa_ctime;
884 la->la_atime = rec->sa_atime;
885 la->la_mtime = rec->sa_mtime;
886 ma->ma_valid = MA_INODE;
888 if (rec->sa_bias & MDS_DATA_MODIFIED)
889 ma->ma_attr_flags |= MDS_DATA_MODIFIED;
891 ma->ma_attr_flags &= ~MDS_DATA_MODIFIED;
893 if (rec->sa_bias & MDS_HSM_RELEASE)
894 ma->ma_attr_flags |= MDS_HSM_RELEASE;
896 ma->ma_attr_flags &= ~MDS_HSM_RELEASE;
898 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
899 mdt_set_capainfo(info, 0, rr->rr_fid1,
900 req_capsule_client_get(pill, &RMF_CAPA1));
905 static int mdt_ioepoch_unpack(struct mdt_thread_info *info)
907 struct req_capsule *pill = info->mti_pill;
910 if (req_capsule_get_size(pill, &RMF_MDT_EPOCH, RCL_CLIENT))
912 req_capsule_client_get(pill, &RMF_MDT_EPOCH);
914 info->mti_ioepoch = NULL;
915 RETURN(info->mti_ioepoch == NULL ? -EFAULT : 0);
918 static inline int mdt_dlmreq_unpack(struct mdt_thread_info *info) {
919 struct req_capsule *pill = info->mti_pill;
921 if (req_capsule_get_size(pill, &RMF_DLM_REQ, RCL_CLIENT)) {
922 info->mti_dlm_req = req_capsule_client_get(pill, &RMF_DLM_REQ);
923 if (info->mti_dlm_req == NULL)
930 static int mdt_setattr_unpack(struct mdt_thread_info *info)
932 struct mdt_reint_record *rr = &info->mti_rr;
933 struct md_attr *ma = &info->mti_attr;
934 struct req_capsule *pill = info->mti_pill;
938 rc = mdt_setattr_unpack_rec(info);
942 /* Epoch may be absent */
943 mdt_ioepoch_unpack(info);
945 if (req_capsule_field_present(pill, &RMF_EADATA, RCL_CLIENT)) {
946 rr->rr_eadata = req_capsule_client_get(pill, &RMF_EADATA);
947 rr->rr_eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
949 ma->ma_lmm_size = rr->rr_eadatalen;
950 if (ma->ma_lmm_size > 0) {
951 ma->ma_lmm = (void *)rr->rr_eadata;
952 ma->ma_valid |= MA_LOV;
956 rc = mdt_dlmreq_unpack(info);
960 static int mdt_hsm_release_unpack(struct mdt_thread_info *info)
962 struct md_attr *ma = &info->mti_attr;
963 struct req_capsule *pill = info->mti_pill;
966 if (!(ma->ma_attr_flags & MDS_HSM_RELEASE))
969 req_capsule_extend(pill, &RQF_MDS_RELEASE_CLOSE);
971 if (!(req_capsule_has_field(pill, &RMF_CLOSE_DATA, RCL_CLIENT) &&
972 req_capsule_field_present(pill, &RMF_CLOSE_DATA, RCL_CLIENT)))
978 int mdt_close_unpack(struct mdt_thread_info *info)
983 rc = mdt_ioepoch_unpack(info);
987 rc = mdt_setattr_unpack_rec(info);
991 rc = mdt_hsm_release_unpack(info);
995 RETURN(mdt_init_ucred_reint(info));
998 static int mdt_create_unpack(struct mdt_thread_info *info)
1000 struct lu_ucred *uc = mdt_ucred(info);
1001 struct mdt_rec_create *rec;
1002 struct lu_attr *attr = &info->mti_attr.ma_attr;
1003 struct mdt_reint_record *rr = &info->mti_rr;
1004 struct req_capsule *pill = info->mti_pill;
1005 struct md_op_spec *sp = &info->mti_spec;
1009 CLASSERT(sizeof(struct mdt_rec_create) == sizeof(struct mdt_rec_reint));
1010 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1014 /* This prior initialization is needed for old_init_ucred_reint() */
1015 uc->uc_fsuid = rec->cr_fsuid;
1016 uc->uc_fsgid = rec->cr_fsgid;
1017 uc->uc_cap = rec->cr_cap;
1018 uc->uc_suppgids[0] = rec->cr_suppgid1;
1019 uc->uc_suppgids[1] = -1;
1020 uc->uc_umask = rec->cr_umask;
1022 rr->rr_fid1 = &rec->cr_fid1;
1023 rr->rr_fid2 = &rec->cr_fid2;
1024 attr->la_mode = rec->cr_mode;
1025 attr->la_rdev = rec->cr_rdev;
1026 attr->la_uid = rec->cr_fsuid;
1027 attr->la_gid = rec->cr_fsgid;
1028 attr->la_ctime = rec->cr_time;
1029 attr->la_mtime = rec->cr_time;
1030 attr->la_atime = rec->cr_time;
1031 attr->la_valid = LA_MODE | LA_RDEV | LA_UID | LA_GID | LA_TYPE |
1032 LA_CTIME | LA_MTIME | LA_ATIME;
1033 memset(&sp->u, 0, sizeof(sp->u));
1034 sp->sp_cr_flags = get_mrc_cr_flags(rec);
1036 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1037 mdt_set_capainfo(info, 0, rr->rr_fid1,
1038 req_capsule_client_get(pill, &RMF_CAPA1));
1039 mdt_set_capainfo(info, 1, rr->rr_fid2, BYPASS_CAPA);
1041 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1045 if (S_ISLNK(attr->la_mode)) {
1046 const char *tgt = NULL;
1048 req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_SYM);
1049 if (req_capsule_get_size(pill, &RMF_SYMTGT, RCL_CLIENT)) {
1050 tgt = req_capsule_client_get(pill, &RMF_SYMTGT);
1051 sp->u.sp_symname = tgt;
1056 req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_RMT_ACL);
1057 if (S_ISDIR(attr->la_mode) &&
1058 req_capsule_get_size(pill, &RMF_EADATA, RCL_CLIENT) > 0) {
1059 sp->u.sp_ea.eadata =
1060 req_capsule_client_get(pill, &RMF_EADATA);
1061 sp->u.sp_ea.eadatalen =
1062 req_capsule_get_size(pill, &RMF_EADATA,
1064 sp->sp_cr_flags |= MDS_OPEN_HAS_EA;
1068 rc = mdt_dlmreq_unpack(info);
1072 static int mdt_link_unpack(struct mdt_thread_info *info)
1074 struct lu_ucred *uc = mdt_ucred(info);
1075 struct mdt_rec_link *rec;
1076 struct lu_attr *attr = &info->mti_attr.ma_attr;
1077 struct mdt_reint_record *rr = &info->mti_rr;
1078 struct req_capsule *pill = info->mti_pill;
1082 CLASSERT(sizeof(struct mdt_rec_link) == sizeof(struct mdt_rec_reint));
1083 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1087 /* This prior initialization is needed for old_init_ucred_reint() */
1088 uc->uc_fsuid = rec->lk_fsuid;
1089 uc->uc_fsgid = rec->lk_fsgid;
1090 uc->uc_cap = rec->lk_cap;
1091 uc->uc_suppgids[0] = rec->lk_suppgid1;
1092 uc->uc_suppgids[1] = rec->lk_suppgid2;
1094 attr->la_uid = rec->lk_fsuid;
1095 attr->la_gid = rec->lk_fsgid;
1096 rr->rr_fid1 = &rec->lk_fid1;
1097 rr->rr_fid2 = &rec->lk_fid2;
1098 attr->la_ctime = rec->lk_time;
1099 attr->la_mtime = rec->lk_time;
1100 attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME;
1102 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1103 mdt_set_capainfo(info, 0, rr->rr_fid1,
1104 req_capsule_client_get(pill, &RMF_CAPA1));
1105 if (req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT))
1106 mdt_set_capainfo(info, 1, rr->rr_fid2,
1107 req_capsule_client_get(pill, &RMF_CAPA2));
1109 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1113 rc = mdt_dlmreq_unpack(info);
1118 static int mdt_unlink_unpack(struct mdt_thread_info *info)
1120 struct lu_ucred *uc = mdt_ucred(info);
1121 struct mdt_rec_unlink *rec;
1122 struct md_attr *ma = &info->mti_attr;
1123 struct lu_attr *attr = &info->mti_attr.ma_attr;
1124 struct mdt_reint_record *rr = &info->mti_rr;
1125 struct req_capsule *pill = info->mti_pill;
1129 CLASSERT(sizeof(struct mdt_rec_unlink) == sizeof(struct mdt_rec_reint));
1130 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1134 /* This prior initialization is needed for old_init_ucred_reint() */
1135 uc->uc_fsuid = rec->ul_fsuid;
1136 uc->uc_fsgid = rec->ul_fsgid;
1137 uc->uc_cap = rec->ul_cap;
1138 uc->uc_suppgids[0] = rec->ul_suppgid1;
1139 uc->uc_suppgids[1] = -1;
1141 attr->la_uid = rec->ul_fsuid;
1142 attr->la_gid = rec->ul_fsgid;
1143 rr->rr_fid1 = &rec->ul_fid1;
1144 rr->rr_fid2 = &rec->ul_fid2;
1145 attr->la_ctime = rec->ul_time;
1146 attr->la_mtime = rec->ul_time;
1147 attr->la_mode = rec->ul_mode;
1148 attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME | LA_MODE;
1150 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1151 mdt_set_capainfo(info, 0, rr->rr_fid1,
1152 req_capsule_client_get(pill, &RMF_CAPA1));
1154 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1158 if (rec->ul_bias & MDS_VTX_BYPASS)
1159 ma->ma_attr_flags |= MDS_VTX_BYPASS;
1161 ma->ma_attr_flags &= ~MDS_VTX_BYPASS;
1163 info->mti_spec.no_create = !!req_is_replay(mdt_info_req(info));
1165 rc = mdt_dlmreq_unpack(info);
1169 static int mdt_rmentry_unpack(struct mdt_thread_info *info)
1171 info->mti_spec.sp_rm_entry = 1;
1172 return mdt_unlink_unpack(info);
1175 static int mdt_rename_unpack(struct mdt_thread_info *info)
1177 struct lu_ucred *uc = mdt_ucred(info);
1178 struct mdt_rec_rename *rec;
1179 struct md_attr *ma = &info->mti_attr;
1180 struct lu_attr *attr = &info->mti_attr.ma_attr;
1181 struct mdt_reint_record *rr = &info->mti_rr;
1182 struct req_capsule *pill = info->mti_pill;
1186 CLASSERT(sizeof(struct mdt_rec_rename) == sizeof(struct mdt_rec_reint));
1187 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1191 /* This prior initialization is needed for old_init_ucred_reint() */
1192 uc->uc_fsuid = rec->rn_fsuid;
1193 uc->uc_fsgid = rec->rn_fsgid;
1194 uc->uc_cap = rec->rn_cap;
1195 uc->uc_suppgids[0] = rec->rn_suppgid1;
1196 uc->uc_suppgids[1] = rec->rn_suppgid2;
1198 attr->la_uid = rec->rn_fsuid;
1199 attr->la_gid = rec->rn_fsgid;
1200 rr->rr_fid1 = &rec->rn_fid1;
1201 rr->rr_fid2 = &rec->rn_fid2;
1202 attr->la_ctime = rec->rn_time;
1203 attr->la_mtime = rec->rn_time;
1204 /* rename_tgt contains the mode already */
1205 attr->la_mode = rec->rn_mode;
1206 attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME | LA_MODE;
1208 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1209 mdt_set_capainfo(info, 0, rr->rr_fid1,
1210 req_capsule_client_get(pill, &RMF_CAPA1));
1211 if (req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT))
1212 mdt_set_capainfo(info, 1, rr->rr_fid2,
1213 req_capsule_client_get(pill, &RMF_CAPA2));
1215 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1219 rc = mdt_name_unpack(pill, &RMF_SYMTGT, &rr->rr_tgt_name, 0);
1223 if (rec->rn_bias & MDS_VTX_BYPASS)
1224 ma->ma_attr_flags |= MDS_VTX_BYPASS;
1226 ma->ma_attr_flags &= ~MDS_VTX_BYPASS;
1228 info->mti_spec.no_create = !!req_is_replay(mdt_info_req(info));
1230 rc = mdt_dlmreq_unpack(info);
1235 * please see comment above LOV_MAGIC_V1_DEF
1237 static void mdt_fix_lov_magic(struct mdt_thread_info *info)
1239 struct mdt_reint_record *rr = &info->mti_rr;
1240 struct lov_user_md_v1 *v1;
1242 v1 = (void *)rr->rr_eadata;
1245 if (unlikely(req_is_replay(mdt_info_req(info)))) {
1246 if (v1->lmm_magic == LOV_USER_MAGIC_V1) {
1247 v1->lmm_magic = LOV_MAGIC_V1_DEF;
1248 } else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V1)) {
1249 v1->lmm_magic = __swab32(LOV_MAGIC_V1_DEF);
1250 } else if (v1->lmm_magic == LOV_USER_MAGIC_V3) {
1251 v1->lmm_magic = LOV_MAGIC_V3_DEF;
1252 } else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V3)) {
1253 v1->lmm_magic = __swab32(LOV_MAGIC_V3_DEF);
1258 static int mdt_open_unpack(struct mdt_thread_info *info)
1260 struct lu_ucred *uc = mdt_ucred(info);
1261 struct mdt_rec_create *rec;
1262 struct lu_attr *attr = &info->mti_attr.ma_attr;
1263 struct req_capsule *pill = info->mti_pill;
1264 struct mdt_reint_record *rr = &info->mti_rr;
1265 struct ptlrpc_request *req = mdt_info_req(info);
1266 struct md_op_spec *sp = &info->mti_spec;
1269 CLASSERT(sizeof(struct mdt_rec_create) == sizeof(struct mdt_rec_reint));
1270 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1274 /* This prior initialization is needed for old_init_ucred_reint() */
1275 uc->uc_fsuid = rec->cr_fsuid;
1276 uc->uc_fsgid = rec->cr_fsgid;
1277 uc->uc_cap = rec->cr_cap;
1278 uc->uc_suppgids[0] = rec->cr_suppgid1;
1279 uc->uc_suppgids[1] = rec->cr_suppgid2;
1280 uc->uc_umask = rec->cr_umask;
1282 rr->rr_fid1 = &rec->cr_fid1;
1283 rr->rr_fid2 = &rec->cr_fid2;
1284 rr->rr_handle = &rec->cr_old_handle;
1285 attr->la_mode = rec->cr_mode;
1286 attr->la_rdev = rec->cr_rdev;
1287 attr->la_uid = rec->cr_fsuid;
1288 attr->la_gid = rec->cr_fsgid;
1289 attr->la_ctime = rec->cr_time;
1290 attr->la_mtime = rec->cr_time;
1291 attr->la_atime = rec->cr_time;
1292 attr->la_valid = LA_MODE | LA_RDEV | LA_UID | LA_GID |
1293 LA_CTIME | LA_MTIME | LA_ATIME;
1294 memset(&info->mti_spec.u, 0, sizeof(info->mti_spec.u));
1295 info->mti_spec.sp_cr_flags = get_mrc_cr_flags(rec);
1296 /* Do not trigger ASSERTION if client miss to set such flags. */
1297 if (unlikely(info->mti_spec.sp_cr_flags == 0))
1299 info->mti_replayepoch = rec->cr_ioepoch;
1301 info->mti_cross_ref = !!(rec->cr_bias & MDS_CROSS_REF);
1303 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1304 mdt_set_capainfo(info, 0, rr->rr_fid1,
1305 req_capsule_client_get(pill, &RMF_CAPA1));
1306 if (req_is_replay(req) &&
1307 req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT)) {
1309 mdt_set_capainfo(info, 1, rr->rr_fid2,
1310 req_capsule_client_get(pill, &RMF_CAPA2));
1313 * FIXME: capa in replay open request might have expired,
1314 * bypass capa check. Security hole?
1316 mdt_set_capainfo(info, 0, rr->rr_fid1, BYPASS_CAPA);
1317 mdt_set_capainfo(info, 1, rr->rr_fid2, BYPASS_CAPA);
1321 mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, MNF_FIX_ANON);
1323 if (req_capsule_field_present(pill, &RMF_EADATA, RCL_CLIENT)) {
1324 rr->rr_eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
1326 if (rr->rr_eadatalen > 0) {
1327 rr->rr_eadata = req_capsule_client_get(pill,
1329 sp->u.sp_ea.eadatalen = rr->rr_eadatalen;
1330 sp->u.sp_ea.eadata = rr->rr_eadata;
1331 sp->no_create = !!req_is_replay(req);
1332 mdt_fix_lov_magic(info);
1336 * Client default md_size may be 0 right after client start,
1337 * until all osc are connected, set here just some reasonable
1338 * value to prevent misbehavior.
1340 if (rr->rr_eadatalen == 0 &&
1341 !(info->mti_spec.sp_cr_flags & MDS_OPEN_DELAY_CREATE))
1342 rr->rr_eadatalen = MIN_MD_SIZE;
1348 static int mdt_setxattr_unpack(struct mdt_thread_info *info)
1350 struct mdt_reint_record *rr = &info->mti_rr;
1351 struct lu_ucred *uc = mdt_ucred(info);
1352 struct lu_attr *attr = &info->mti_attr.ma_attr;
1353 struct req_capsule *pill = info->mti_pill;
1354 struct mdt_rec_setxattr *rec;
1359 CLASSERT(sizeof(struct mdt_rec_setxattr) ==
1360 sizeof(struct mdt_rec_reint));
1362 rec = req_capsule_client_get(pill, &RMF_REC_REINT);
1366 /* This prior initialization is needed for old_init_ucred_reint() */
1367 uc->uc_fsuid = rec->sx_fsuid;
1368 uc->uc_fsgid = rec->sx_fsgid;
1369 uc->uc_cap = rec->sx_cap;
1370 uc->uc_suppgids[0] = rec->sx_suppgid1;
1371 uc->uc_suppgids[1] = -1;
1373 rr->rr_opcode = rec->sx_opcode;
1374 rr->rr_fid1 = &rec->sx_fid;
1375 attr->la_valid = rec->sx_valid;
1376 attr->la_ctime = rec->sx_time;
1377 attr->la_size = rec->sx_size;
1378 attr->la_flags = rec->sx_flags;
1380 if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1381 mdt_set_capainfo(info, 0, rr->rr_fid1,
1382 req_capsule_client_get(pill, &RMF_CAPA1));
1384 mdt_set_capainfo(info, 0, rr->rr_fid1, BYPASS_CAPA);
1386 rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
1390 if (req_capsule_field_present(pill, &RMF_EADATA, RCL_CLIENT)) {
1391 rr->rr_eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
1393 if (rr->rr_eadatalen > 0) {
1394 rr->rr_eadata = req_capsule_client_get(pill,
1396 if (rr->rr_eadata == NULL)
1399 rr->rr_eadata = NULL;
1401 } else if (!(attr->la_valid & OBD_MD_FLXATTRRM)) {
1402 CDEBUG(D_INFO, "no xattr data supplied\n");
1406 if (mdt_dlmreq_unpack(info) < 0)
1413 typedef int (*reint_unpacker)(struct mdt_thread_info *info);
1415 static reint_unpacker mdt_reint_unpackers[REINT_MAX] = {
1416 [REINT_SETATTR] = mdt_setattr_unpack,
1417 [REINT_CREATE] = mdt_create_unpack,
1418 [REINT_LINK] = mdt_link_unpack,
1419 [REINT_UNLINK] = mdt_unlink_unpack,
1420 [REINT_RENAME] = mdt_rename_unpack,
1421 [REINT_OPEN] = mdt_open_unpack,
1422 [REINT_SETXATTR] = mdt_setxattr_unpack,
1423 [REINT_RMENTRY] = mdt_rmentry_unpack,
1426 int mdt_reint_unpack(struct mdt_thread_info *info, __u32 op)
1431 memset(&info->mti_rr, 0, sizeof(info->mti_rr));
1432 if (op < REINT_MAX && mdt_reint_unpackers[op] != NULL) {
1433 info->mti_rr.rr_opcode = op;
1434 rc = mdt_reint_unpackers[op](info);
1436 CERROR("Unexpected opcode %d\n", op);