lustre/mdt/mdt_lib.c

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2  * vim:expandtab:shiftwidth=8:tabstop=8:
   3  *
   4  *  lustre/mdt/mdt_lib.c
   5  *  Lustre Metadata Target (mdt) request unpacking helper.
   6  *
   7  *  Copyright (c) 2006 Cluster File Systems, Inc.
   8  *   Author: Peter Braam <braam@clusterfs.com>
   9  *   Author: Andreas Dilger <adilger@clusterfs.com>
  10  *   Author: Phil Schwan <phil@clusterfs.com>
  11  *   Author: Mike Shaver <shaver@clusterfs.com>
  12  *   Author: Nikita Danilov <nikita@clusterfs.com>
  13  *   Author: Huang Hua <huanghua@clusterfs.com>
  14  *   Author: Fan Yong <fanyong@clusterfs.com>
  15  *
  16  *
  17  *   This file is part of the Lustre file system, http://www.lustre.org
  18  *   Lustre is a trademark of Cluster File Systems, Inc.
  19  *
  20  *   You may have signed or agreed to another license before downloading
  21  *   this software.  If so, you are bound by the terms and conditions
  22  *   of that agreement, and the following does not apply to you.  See the
  23  *   LICENSE file included with this distribution for more information.
  24  *
  25  *   If you did not agree to a different license, then this copy of Lustre
  26  *   is open source software; you can redistribute it and/or modify it
  27  *   under the terms of version 2 of the GNU General Public License as
  28  *   published by the Free Software Foundation.
  29  *
  30  *   In either case, Lustre is distributed in the hope that it will be
  31  *   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
  32  *   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  33  *   license text for more details.
  34  */
  35
  36
  37 #ifndef EXPORT_SYMTAB
  38 # define EXPORT_SYMTAB
  39 #endif
  40 #define DEBUG_SUBSYSTEM S_MDS
  41
  42 #include "mdt_internal.h"
  43
  44
  45 typedef enum ucred_init_type {
  46         NONE_INIT       = 0,
  47         BODY_INIT       = 1,
  48         REC_INIT        = 2
  49 } ucred_init_type_t;
  50
  51 void mdt_exit_ucred(struct mdt_thread_info *info)
  52 {
  53         struct md_ucred   *uc  = mdt_ucred(info);
  54         struct mdt_device *mdt = info->mti_mdt;
  55
  56         if (uc->mu_valid != UCRED_INIT) {
  57                 uc->mu_suppgids[0] = uc->mu_suppgids[1] = -1;
  58                 if (uc->mu_ginfo) {
  59                         groups_free(uc->mu_ginfo);
  60                         uc->mu_ginfo = NULL;
  61                 }
  62                 if (uc->mu_identity) {
  63                         mdt_identity_put(mdt->mdt_identity_cache,
  64                                          uc->mu_identity);
  65                         uc->mu_identity = NULL;
  66                 }
  67                 uc->mu_valid = UCRED_INIT;
  68         }
  69 }
  70
  71 /* XXX: root_squash will be redesigned in Lustre 1.7.
  72  * Do not root_squash for inter-MDS operations */
  73 static int mdt_root_squash(struct mdt_thread_info *info)
  74 {
  75         return 0;
  76 }
  77
  78 static int new_init_ucred(struct mdt_thread_info *info, ucred_init_type_t type,
  79                           void *buf)
  80 {
  81         struct ptlrpc_request   *req = mdt_info_req(info);
  82         struct mdt_export_data  *med = mdt_req2med(req);
  83         struct mdt_device       *mdt = info->mti_mdt;
  84         struct ptlrpc_user_desc *pud = req->rq_user_desc;
  85         struct md_ucred         *ucred = mdt_ucred(info);
  86         lnet_nid_t              peernid = req->rq_peer.nid;
  87         __u32                    perm = 0;
  88         int                     setuid;
  89         int                     setgid;
  90         int                     rc = 0;
  91
  92         ENTRY;
  93
  94         LASSERT(req->rq_auth_gss);
  95         LASSERT(!req->rq_auth_usr_mdt);
  96         LASSERT(req->rq_user_desc);
  97
  98         ucred->mu_valid = UCRED_INVALID;
  99
 100         ucred->mu_o_uid   = pud->pud_uid;
 101         ucred->mu_o_gid   = pud->pud_gid;
 102         ucred->mu_o_fsuid = pud->pud_fsuid;
 103         ucred->mu_o_fsgid = pud->pud_fsgid;
 104
 105         if (type == BODY_INIT) {
 106                 struct mdt_body *body = (struct mdt_body *)buf;
 107
 108                 ucred->mu_suppgids[0] = body->suppgid;
 109                 ucred->mu_suppgids[1] = -1;
 110         }
 111
 112         /* sanity check: we expect the uid which client claimed is true */
 113         if (med->med_rmtclient) {
 114                 if (req->rq_auth_mapped_uid == INVALID_UID) {
 115                         CWARN("remote user not mapped, deny access!\n");
 116                         RETURN(-EACCES);
 117                 }
 118
 119                 if (ptlrpc_user_desc_do_idmap(req, pud))
 120                         RETURN(-EACCES);
 121
 122                 if (req->rq_auth_mapped_uid != pud->pud_uid) {
 123                         CERROR("remote client "LPU64": auth/mapped uid %u/%u "
 124                                "while client claim %u:%u/%u:%u\n",
 125                                peernid, req->rq_auth_uid,
 126                                req->rq_auth_mapped_uid,
 127                                pud->pud_uid, pud->pud_gid,
 128                                pud->pud_fsuid, pud->pud_fsgid);
 129                         RETURN(-EACCES);
 130                 }
 131         } else {
 132                 if (req->rq_auth_uid != pud->pud_uid) {
 133                         CERROR("local client "LPU64": auth uid %u "
 134                                "while client claim %u:%u/%u:%u\n",
 135                                peernid, req->rq_auth_uid, pud->pud_uid,
 136                                pud->pud_gid, pud->pud_fsuid, pud->pud_fsgid);
 137                         RETURN(-EACCES);
 138                 }
 139         }
 140
 141         if (is_identity_get_disabled(mdt->mdt_identity_cache)) {
 142                 if (med->med_rmtclient) {
 143                         CERROR("remote client must run with identity_get "
 144                                "enabled!\n");
 145                         RETURN(-EACCES);
 146                 } else {
 147                         ucred->mu_identity = NULL;
 148                         perm = CFS_SETUID_PERM | CFS_SETGID_PERM |
 149                                CFS_SETGRP_PERM;
 150                 }
 151         } else {
 152                 ucred->mu_identity = mdt_identity_get(mdt->mdt_identity_cache,
 153                                                       pud->pud_uid);
 154                 if (!ucred->mu_identity) {
 155                         CERROR("Deny access without identity: uid %d\n",
 156                                pud->pud_uid);
 157                 RETURN(-EACCES);
 158                 } else {
 159                         perm = mdt_identity_get_perm(ucred->mu_identity,
 160                                                    med->med_rmtclient,
 161                                                    peernid);
 162                 }
 163         }
 164
 165         /* find out the setuid/setgid attempt */
 166         setuid = (pud->pud_uid != pud->pud_fsuid);
 167         setgid = ((pud->pud_gid != pud->pud_fsgid) ||
 168                   (ucred->mu_identity &&
 169                   (pud->pud_gid != ucred->mu_identity->mi_gid)));
 170
 171         /* check permission of setuid */
 172         if (setuid && !(perm & CFS_SETUID_PERM)) {
 173                 CWARN("mdt blocked setuid attempt (%u -> %u) from "
 174                       LPX64"\n", pud->pud_uid, pud->pud_fsuid, peernid);
 175                 GOTO(out, rc = -EACCES);
 176         }
 177
 178         /* check permission of setgid */
 179         if (setgid && !(perm & CFS_SETGID_PERM)) {
 180                 CWARN("mdt blocked setgid attempt (%u:%u/%u:%u -> %u) "
 181                       "from "LPX64"\n", pud->pud_uid, pud->pud_gid,
 182                       pud->pud_fsuid, pud->pud_fsgid,
 183                       ucred->mu_identity->mi_gid, peernid);
 184                 GOTO(out, rc = -EACCES);
 185         }
 186
 187         /*
 188          * NB: remote client not allowed to setgroups anyway.
 189          */
 190         if (!med->med_rmtclient && perm & CFS_SETGRP_PERM) {
 191                 if (pud->pud_ngroups) {
 192                 /* setgroups for local client */
 193                         ucred->mu_ginfo = groups_alloc(pud->pud_ngroups);
 194                         if (!ucred->mu_ginfo) {
 195                         CERROR("failed to alloc %d groups\n",
 196                                pud->pud_ngroups);
 197                         GOTO(out, rc = -ENOMEM);
 198                 }
 199
 200                         lustre_groups_from_list(ucred->mu_ginfo,
 201                                                 pud->pud_groups);
 202                         lustre_groups_sort(ucred->mu_ginfo);
 203         } else {
 204                 ucred->mu_ginfo = NULL;
 205         }
 206         } else {
 207                 ucred->mu_suppgids[0] = -1;
 208                 ucred->mu_suppgids[1] = -1;
 209                 ucred->mu_ginfo = NULL;
 210         }
 211
 212         ucred->mu_uid   = pud->pud_uid;
 213         ucred->mu_gid   = pud->pud_gid;
 214         ucred->mu_fsuid = pud->pud_fsuid;
 215         ucred->mu_fsgid = pud->pud_fsgid;
 216
 217         /* XXX: need to process root_squash here. */
 218         mdt_root_squash(info);
 219
 220         /* remove fs privilege for non-root user */
 221         if (ucred->mu_fsuid)
 222                 ucred->mu_cap = pud->pud_cap & ~CAP_FS_MASK;
 223         else
 224                 ucred->mu_cap = pud->pud_cap;
 225         ucred->mu_valid = UCRED_NEW;
 226
 227         EXIT;
 228
 229 out:
 230         if (rc) {
 231                 if (ucred->mu_ginfo) {
 232                         groups_free(ucred->mu_ginfo);
 233                         ucred->mu_ginfo = NULL;
 234                 }
 235                 if (ucred->mu_identity) {
 236                         mdt_identity_put(mdt->mdt_identity_cache,
 237                                          ucred->mu_identity);
 238                         ucred->mu_identity = NULL;
 239                 }
 240         }
 241
 242         return rc;
 243 }
 244
 245 int mdt_check_ucred(struct mdt_thread_info *info)
 246 {
 247         struct ptlrpc_request   *req = mdt_info_req(info);
 248         struct mdt_export_data  *med = mdt_req2med(req);
 249         struct mdt_device       *mdt = info->mti_mdt;
 250         struct ptlrpc_user_desc *pud = req->rq_user_desc;
 251         struct md_ucred         *ucred = mdt_ucred(info);
 252         struct md_identity      *identity = NULL;
 253         lnet_nid_t              peernid = req->rq_peer.nid;
 254         __u32                    perm = 0;
 255         int                      setuid;
 256         int                      setgid;
 257         int                      rc = 0;
 258
 259         ENTRY;
 260
 261         if ((ucred->mu_valid == UCRED_OLD) || (ucred->mu_valid == UCRED_NEW))
 262                 RETURN(0);
 263
 264         if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
 265                 RETURN(0);
 266
 267         /* sanity check: if we use strong authentication, we expect the
 268          * uid which client claimed is true */
 269                 if (med->med_rmtclient) {
 270                         if (req->rq_auth_mapped_uid == INVALID_UID) {
 271                                 CWARN("remote user not mapped, deny access!\n");
 272                                 RETURN(-EACCES);
 273                         }
 274
 275                         if (ptlrpc_user_desc_do_idmap(req, pud))
 276                                 RETURN(-EACCES);
 277
 278                         if (req->rq_auth_mapped_uid != pud->pud_uid) {
 279                         CERROR("remote client "LPU64": auth/mapped uid %u/%u "
 280                                        "while client claim %u:%u/%u:%u\n",
 281                                peernid, req->rq_auth_uid,
 282                                req->rq_auth_mapped_uid,
 283                                pud->pud_uid, pud->pud_gid,
 284                                pud->pud_fsuid, pud->pud_fsgid);
 285                                 RETURN(-EACCES);
 286                         }
 287                 } else {
 288                         if (req->rq_auth_uid != pud->pud_uid) {
 289                                 CERROR("local client "LPU64": auth uid %u "
 290                                        "while client claim %u:%u/%u:%u\n",
 291                                        peernid, req->rq_auth_uid, pud->pud_uid,
 292                                        pud->pud_gid, pud->pud_fsuid,
 293                                        pud->pud_fsgid);
 294                                 RETURN(-EACCES);
 295                         }
 296                 }
 297
 298         if (is_identity_get_disabled(mdt->mdt_identity_cache)) {
 299                 if (med->med_rmtclient) {
 300                         CERROR("remote client must run with identity_get "
 301                                "enabled!\n");
 302                         RETURN(-EACCES);
 303                 }
 304                 RETURN(0);
 305         }
 306
 307         identity = mdt_identity_get(mdt->mdt_identity_cache, pud->pud_uid);
 308         if (!identity) {
 309                 CERROR("Deny access without identity: uid %d\n", pud->pud_uid);
 310                 RETURN(-EACCES);
 311         }
 312
 313         perm = mdt_identity_get_perm(identity, med->med_rmtclient, peernid);
 314         /* find out the setuid/setgid attempt */
 315         setuid = (pud->pud_uid != pud->pud_fsuid);
 316         setgid = (pud->pud_gid != pud->pud_fsgid ||
 317                   pud->pud_gid != identity->mi_gid);
 318
 319         /* check permission of setuid */
 320         if (setuid && !(perm & CFS_SETUID_PERM)) {
 321                 CWARN("mdt blocked setuid attempt (%u -> %u) from "
 322                       LPX64"\n", pud->pud_uid, pud->pud_fsuid, peernid);
 323                 GOTO(out, rc = -EACCES);
 324         }
 325
 326         /* check permission of setgid */
 327         if (setgid && !(perm & CFS_SETGID_PERM)) {
 328                 CWARN("mdt blocked setgid attempt (%u:%u/%u:%u -> %u) "
 329                       "from "LPX64"\n", pud->pud_uid, pud->pud_gid,
 330                       pud->pud_fsuid, pud->pud_fsgid, identity->mi_gid,
 331                       peernid);
 332                 GOTO(out, rc = -EACCES);
 333         }
 334
 335         EXIT;
 336
 337 out:
 338         mdt_identity_put(mdt->mdt_identity_cache, identity);
 339         return rc;
 340 }
 341
 342 static int old_init_ucred(struct mdt_thread_info *info,
 343                           struct mdt_body *body)
 344 {
 345         struct md_ucred *uc = mdt_ucred(info);
 346         struct mdt_device  *mdt = info->mti_mdt;
 347         struct md_identity *identity = NULL;
 348
 349         ENTRY;
 350
 351         uc->mu_valid = UCRED_INVALID;
 352         uc->mu_o_uid = uc->mu_uid = body->uid;
 353         uc->mu_o_gid = uc->mu_gid = body->gid;
 354         uc->mu_o_fsuid = uc->mu_fsuid = body->fsuid;
 355         uc->mu_o_fsgid = uc->mu_fsgid = body->fsgid;
 356         uc->mu_suppgids[0] = body->suppgid;
 357         uc->mu_suppgids[1] = -1;
 358         uc->mu_ginfo = NULL;
 359         if (!is_identity_get_disabled(mdt->mdt_identity_cache)) {
 360                 identity = mdt_identity_get(mdt->mdt_identity_cache,
 361                                             uc->mu_fsuid);
 362                 if (!identity) {
 363                         CERROR("Deny access without identity: uid %d\n",
 364                                uc->mu_fsuid);
 365                         RETURN(-EACCES);
 366                 }
 367         }
 368         uc->mu_identity = identity;
 369
 370         /* XXX: need to process root_squash here. */
 371         mdt_root_squash(info);
 372
 373         /* remove fs privilege for non-root user */
 374         if (uc->mu_fsuid)
 375                 uc->mu_cap = body->capability & ~CAP_FS_MASK;
 376         else
 377                 uc->mu_cap = body->capability;
 378         uc->mu_valid = UCRED_OLD;
 379
 380         RETURN(0);
 381 }
 382
 383 static int old_init_ucred_reint(struct mdt_thread_info *info)
 384 {
 385         struct md_ucred *uc = mdt_ucred(info);
 386         struct mdt_device  *mdt = info->mti_mdt;
 387         struct md_identity *identity = NULL;
 388
 389         ENTRY;
 390
 391         uc->mu_valid = UCRED_INVALID;
 392         uc->mu_o_uid = uc->mu_o_fsuid = uc->mu_uid = uc->mu_fsuid;
 393         uc->mu_o_gid = uc->mu_o_fsgid = uc->mu_gid = uc->mu_fsgid;
 394         uc->mu_ginfo = NULL;
 395         if (!is_identity_get_disabled(mdt->mdt_identity_cache)) {
 396                 identity = mdt_identity_get(mdt->mdt_identity_cache,
 397                                             uc->mu_fsuid);
 398                 if (!identity) {
 399                         CERROR("Deny access without identity: uid %d\n",
 400                                uc->mu_fsuid);
 401                         RETURN(-EACCES);
 402         }
 403         }
 404         uc->mu_identity = identity;
 405
 406         /* XXX: need to process root_squash here. */
 407         mdt_root_squash(info);
 408
 409         /* remove fs privilege for non-root user */
 410         if (uc->mu_fsuid)
 411                 uc->mu_cap &= ~CAP_FS_MASK;
 412         uc->mu_valid = UCRED_OLD;
 413
 414         RETURN(0);
 415 }
 416
 417 int mdt_init_ucred(struct mdt_thread_info *info, struct mdt_body *body)
 418 {
 419         struct ptlrpc_request *req = mdt_info_req(info);
 420         struct md_ucred       *uc  = mdt_ucred(info);
 421
 422         if ((uc->mu_valid == UCRED_OLD) || (uc->mu_valid == UCRED_NEW))
 423                 return 0;
 424
 425         mdt_exit_ucred(info);
 426
 427         if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
 428                 return old_init_ucred(info, body);
 429         else
 430                 return new_init_ucred(info, BODY_INIT, body);
 431 }
 432
 433 int mdt_init_ucred_reint(struct mdt_thread_info *info)
 434 {
 435         struct ptlrpc_request *req = mdt_info_req(info);
 436         struct md_ucred       *uc  = mdt_ucred(info);
 437
 438         if ((uc->mu_valid == UCRED_OLD) || (uc->mu_valid == UCRED_NEW))
 439                 return 0;
 440
 441         mdt_exit_ucred(info);
 442
 443         if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
 444                 return old_init_ucred_reint(info);
 445         else
 446                 return new_init_ucred(info, REC_INIT, NULL);
 447 }
 448
 449 /* copied from lov/lov_ea.c, just for debugging, will be removed later */
 450 void mdt_dump_lmm(int level, const struct lov_mds_md *lmm)
 451 {
 452         const struct lov_ost_data_v1 *lod;
 453         int i;
 454         __s16 stripe_count =
 455                 le16_to_cpu(((struct lov_user_md*)lmm)->lmm_stripe_count);
 456
 457         CDEBUG(level, "objid "LPX64", magic 0x%08X, pattern %#X\n",
 458                le64_to_cpu(lmm->lmm_object_id), le32_to_cpu(lmm->lmm_magic),
 459                le32_to_cpu(lmm->lmm_pattern));
 460         CDEBUG(level,"stripe_size=0x%x, stripe_count=0x%x\n",
 461                le32_to_cpu(lmm->lmm_stripe_size),
 462                le32_to_cpu(lmm->lmm_stripe_count));
 463         LASSERT(stripe_count <= (__s16)LOV_MAX_STRIPE_COUNT);
 464         for (i = 0, lod = lmm->lmm_objects; i < stripe_count; i++, lod++) {
 465                 CDEBUG(level, "stripe %u idx %u subobj "LPX64"/"LPX64"\n",
 466                        i, le32_to_cpu(lod->l_ost_idx),
 467                        le64_to_cpu(lod->l_object_gr),
 468                        le64_to_cpu(lod->l_object_id));
 469         }
 470 }
 471
 472 void mdt_shrink_reply(struct mdt_thread_info *info)
 473 {
 474         struct req_capsule    *pill = &info->mti_pill;
 475         struct mdt_body       *body;
 476         int acl_size, md_size, adjust = 0;
 477         ENTRY;
 478
 479         body = req_capsule_server_get(pill, &RMF_MDT_BODY);
 480         LASSERT(body != NULL);
 481
 482         if (body->valid & (OBD_MD_FLDIREA | OBD_MD_FLEASIZE | OBD_MD_LINKNAME))
 483                 md_size = body->eadatasize;
 484         else
 485                 md_size = 0;
 486
 487         acl_size = body->aclsize;
 488
 489         CDEBUG(D_INFO, "Shrink to md_size = %d cookie/acl_size = %d"
 490                         " MDSCAPA = %d, OSSCAPA = %d\n",
 491                         md_size, acl_size,
 492                         (int)(body->valid & OBD_MD_FLMDSCAPA),
 493                         (int)(body->valid & OBD_MD_FLOSSCAPA));
 494 /*
 495             &RMF_MDT_BODY,
 496             &RMF_MDT_MD,
 497             &RMF_ACL, or &RMF_LOGCOOKIES
 498 (optional)  &RMF_CAPA1,
 499 (optional)  &RMF_CAPA2,
 500 (optional)  something else
 501 */
 502         adjust += req_capsule_shrink(pill, &RMF_MDT_MD,
 503                                     md_size, adjust, 1);
 504
 505         if (req_capsule_has_field(pill, &RMF_ACL, RCL_SERVER))
 506                 adjust += req_capsule_shrink(pill, &RMF_ACL,
 507                                             acl_size, adjust, 1);
 508         else if (req_capsule_has_field(pill, &RMF_LOGCOOKIES, RCL_SERVER))
 509                 adjust += req_capsule_shrink(pill, &RMF_LOGCOOKIES,
 510                                             acl_size, adjust, 1);
 511
 512         /* RMF_CAPA1 on server-side maybe for OBD_MD_FLMDSCAPA or
 513          * OBD_MD_FLOSSCAPA. If RMF_CAPA2 exist also, RMF_CAPA1 is
 514          * for OBD_MD_FLMDSCAPA only. */
 515         if (req_capsule_has_field(pill, &RMF_CAPA1, RCL_SERVER)) {
 516                 if ((req_capsule_has_field(pill, &RMF_CAPA2, RCL_SERVER) &&
 517                     !(body->valid & OBD_MD_FLMDSCAPA)) ||
 518                     (!req_capsule_has_field(pill, &RMF_CAPA2, RCL_SERVER) &&
 519                     !(body->valid & OBD_MD_FLMDSCAPA) &&
 520                     !(body->valid & OBD_MD_FLOSSCAPA)))
 521                         adjust += req_capsule_shrink(pill, &RMF_CAPA1,
 522                                                      0, adjust, 1);
 523         }
 524
 525         /* RMF_CAPA2 on server-side is for OBD_MD_FLOSSCAPA only. */
 526         if ((req_capsule_has_field(pill, &RMF_CAPA2, RCL_SERVER) &&
 527                 !(body->valid & OBD_MD_FLOSSCAPA)))
 528                 adjust += req_capsule_shrink(pill, &RMF_CAPA2, 0, adjust, 0);
 529
 530         /*
 531          * Some more field should be shrinked if needed.
 532          * This should be done by those who added fields to reply message.
 533          */
 534         EXIT;
 535 }
 536
 537
 538 /* if object is dying, pack the lov/llog data,
 539  * parameter info->mti_attr should be valid at this point! */
 540 int mdt_handle_last_unlink(struct mdt_thread_info *info, struct mdt_object *mo,
 541                            const struct md_attr *ma)
 542 {
 543         struct mdt_body       *repbody;
 544         const struct lu_attr *la = &ma->ma_attr;
 545         ENTRY;
 546
 547         repbody = req_capsule_server_get(&info->mti_pill, &RMF_MDT_BODY);
 548         LASSERT(repbody != NULL);
 549
 550         if (ma->ma_valid & MA_INODE)
 551                 mdt_pack_attr2body(info, repbody, la, mdt_object_fid(mo));
 552
 553         if (ma->ma_valid & MA_LOV) {
 554                 __u32 mode;
 555
 556                 if (mdt_object_exists(mo) < 0)
 557                         /* If it is a remote object, and we do not retrieve
 558                          * EA back unlink reg file*/
 559                         mode = S_IFREG;
 560                 else
 561                         mode = lu_object_attr(&mo->mot_obj.mo_lu);
 562
 563                 LASSERT(ma->ma_lmm_size);
 564                 mdt_dump_lmm(D_INFO, ma->ma_lmm);
 565                 repbody->eadatasize = ma->ma_lmm_size;
 566                 if (S_ISREG(mode))
 567                         repbody->valid |= OBD_MD_FLEASIZE;
 568                 else if (S_ISDIR(mode))
 569                         repbody->valid |= OBD_MD_FLDIREA;
 570                 else
 571                         LBUG();
 572         }
 573
 574         if (ma->ma_cookie_size && (ma->ma_valid & MA_COOKIE)) {
 575                 repbody->aclsize = ma->ma_cookie_size;
 576                 repbody->valid |= OBD_MD_FLCOOKIE;
 577         }
 578
 579         RETURN(0);
 580 }
 581
 582 static inline unsigned int attr_unpack(__u64 sa_valid) {
 583         unsigned int ia_valid = 0;
 584
 585         if (sa_valid & MDS_ATTR_MODE)
 586                 ia_valid |= ATTR_MODE;
 587         if (sa_valid & MDS_ATTR_UID)
 588                 ia_valid |= ATTR_UID;
 589         if (sa_valid & MDS_ATTR_GID)
 590                 ia_valid |= ATTR_GID;
 591         if (sa_valid & MDS_ATTR_SIZE)
 592                 ia_valid |= ATTR_SIZE;
 593         if (sa_valid & MDS_ATTR_ATIME)
 594                 ia_valid |= ATTR_ATIME;
 595         if (sa_valid & MDS_ATTR_MTIME)
 596                 ia_valid |= ATTR_MTIME;
 597         if (sa_valid & MDS_ATTR_CTIME)
 598                 ia_valid |= ATTR_CTIME;
 599         if (sa_valid & MDS_ATTR_ATIME_SET)
 600                 ia_valid |= ATTR_ATIME_SET;
 601         if (sa_valid & MDS_ATTR_MTIME_SET)
 602                 ia_valid |= ATTR_MTIME_SET;
 603         if (sa_valid & MDS_ATTR_FORCE)
 604                 ia_valid |= ATTR_FORCE;
 605         if (sa_valid & MDS_ATTR_ATTR_FLAG)
 606                 ia_valid |= ATTR_ATTR_FLAG;
 607         if (sa_valid & MDS_ATTR_KILL_SUID)
 608                 ia_valid |=  ATTR_KILL_SUID;
 609         if (sa_valid & MDS_ATTR_KILL_SGID)
 610                 ia_valid |= ATTR_KILL_SGID;
 611         if (sa_valid & MDS_ATTR_CTIME_SET)
 612                 ia_valid |= ATTR_CTIME_SET;
 613         if (sa_valid & MDS_ATTR_FROM_OPEN)
 614                 ia_valid |= ATTR_FROM_OPEN;
 615         if (sa_valid & MDS_ATTR_BLOCKS)
 616                 ia_valid |= ATTR_BLOCKS;
 617         if (sa_valid & MDS_OPEN_OWNEROVERRIDE)
 618                 ia_valid |= MDS_OPEN_OWNEROVERRIDE;
 619         return ia_valid;
 620 }
 621
 622 static __u64 mdt_attr_valid_xlate(__u64 in, struct mdt_reint_record *rr,
 623                                   struct md_attr *ma)
 624 {
 625         __u64 out;
 626
 627         out = 0;
 628         if (in & ATTR_MODE)
 629                 out |= LA_MODE;
 630         if (in & ATTR_UID)
 631                 out |= LA_UID;
 632         if (in & ATTR_GID)
 633                 out |= LA_GID;
 634         if (in & ATTR_SIZE)
 635                 out |= LA_SIZE;
 636         if (in & ATTR_BLOCKS)
 637                 out |= LA_BLOCKS;
 638
 639         if (in & ATTR_FROM_OPEN)
 640                 rr->rr_flags |= MRF_SETATTR_LOCKED;
 641
 642         if (in & ATTR_ATIME_SET)
 643                 out |= LA_ATIME;
 644
 645         if (in & ATTR_CTIME_SET)
 646                 out |= LA_CTIME;
 647
 648         if (in & ATTR_MTIME_SET)
 649                 out |= LA_MTIME;
 650
 651         if (in & ATTR_ATTR_FLAG)
 652                 out |= LA_FLAGS;
 653
 654         if (in & MDS_OPEN_OWNEROVERRIDE)
 655                 out |= MDS_OPEN_OWNEROVERRIDE;
 656
 657         /*XXX need ATTR_RAW?*/
 658         in &= ~(ATTR_MODE|ATTR_UID|ATTR_GID|ATTR_SIZE|ATTR_BLOCKS|
 659                 ATTR_ATIME|ATTR_MTIME|ATTR_CTIME|ATTR_FROM_OPEN|
 660                 ATTR_ATIME_SET|ATTR_CTIME_SET|ATTR_MTIME_SET|
 661                 ATTR_ATTR_FLAG|ATTR_RAW|MDS_OPEN_OWNEROVERRIDE);
 662         if (in != 0)
 663                 CERROR("Unknown attr bits: %#llx\n", in);
 664         return out;
 665 }
 666 /* unpacking */
 667
 668 static int mdt_setattr_unpack_rec(struct mdt_thread_info *info)
 669 {
 670         struct md_ucred         *uc  = mdt_ucred(info);
 671         struct md_attr          *ma = &info->mti_attr;
 672         struct lu_attr          *la = &ma->ma_attr;
 673         struct req_capsule      *pill = &info->mti_pill;
 674         struct mdt_reint_record *rr = &info->mti_rr;
 675         struct mdt_rec_setattr  *rec;
 676         ENTRY;
 677
 678         rec = req_capsule_client_get(pill, &RMF_REC_SETATTR);
 679         if (rec == NULL)
 680                 RETURN(-EFAULT);
 681
 682         uc->mu_fsuid = rec->sa_fsuid;
 683         uc->mu_fsgid = rec->sa_fsgid;
 684         uc->mu_cap   = rec->sa_cap;
 685         uc->mu_suppgids[0] = rec->sa_suppgid;
 686         uc->mu_suppgids[1] = -1;
 687
 688         rr->rr_fid1 = &rec->sa_fid;
 689         la->la_valid = mdt_attr_valid_xlate(attr_unpack(rec->sa_valid), rr, ma);
 690         la->la_mode  = rec->sa_mode;
 691         la->la_flags = rec->sa_attr_flags;
 692         la->la_uid   = rec->sa_uid;
 693         la->la_gid   = rec->sa_gid;
 694         la->la_size  = rec->sa_size;
 695         la->la_blocks = rec->sa_blocks;
 696         la->la_ctime = rec->sa_ctime;
 697         la->la_atime = rec->sa_atime;
 698         la->la_mtime = rec->sa_mtime;
 699         ma->ma_valid = MA_INODE;
 700
 701         if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
 702                 mdt_set_capainfo(info, 0, rr->rr_fid1,
 703                                  req_capsule_client_get(pill, &RMF_CAPA1));
 704
 705         RETURN(0);
 706 }
 707
 708 static int mdt_epoch_unpack(struct mdt_thread_info *info)
 709 {
 710         struct req_capsule *pill = &info->mti_pill;
 711         ENTRY;
 712
 713         if (req_capsule_get_size(pill, &RMF_MDT_EPOCH, RCL_CLIENT))
 714                 info->mti_epoch = req_capsule_client_get(pill, &RMF_MDT_EPOCH);
 715         else
 716                 info->mti_epoch = NULL;
 717         RETURN(info->mti_epoch == NULL ? -EFAULT : 0);
 718 }
 719
 720 static inline int mdt_dlmreq_unpack(struct mdt_thread_info *info) {
 721         struct req_capsule      *pill = &info->mti_pill;
 722
 723         if (req_capsule_get_size(pill, &RMF_DLM_REQ, RCL_CLIENT)) {
 724                 info->mti_dlm_req = req_capsule_client_get(pill, &RMF_DLM_REQ);
 725                 if (info->mti_dlm_req == NULL)
 726                         RETURN(-EFAULT);
 727         }
 728
 729         RETURN(0);
 730 }
 731
 732 static int mdt_setattr_unpack(struct mdt_thread_info *info)
 733 {
 734         struct md_attr          *ma = &info->mti_attr;
 735         struct req_capsule      *pill = &info->mti_pill;
 736         int rc;
 737         ENTRY;
 738
 739         rc = mdt_setattr_unpack_rec(info);
 740         if (rc)
 741                 RETURN(rc);
 742
 743         /* Epoch may be absent */
 744         mdt_epoch_unpack(info);
 745
 746         ma->ma_lmm_size = req_capsule_get_size(pill, &RMF_EADATA, RCL_CLIENT);
 747         if (ma->ma_lmm_size) {
 748                 ma->ma_lmm = req_capsule_client_get(pill, &RMF_EADATA);
 749                 ma->ma_valid |= MA_LOV;
 750         }
 751
 752         ma->ma_cookie_size = req_capsule_get_size(pill, &RMF_LOGCOOKIES,
 753                                                   RCL_CLIENT);
 754         if (ma->ma_cookie_size) {
 755                 ma->ma_cookie = req_capsule_client_get(pill, &RMF_LOGCOOKIES);
 756                 ma->ma_valid |= MA_COOKIE;
 757         }
 758
 759         rc = mdt_dlmreq_unpack(info);
 760         RETURN(rc);
 761 }
 762
 763 int mdt_close_unpack(struct mdt_thread_info *info)
 764 {
 765         int rc;
 766         ENTRY;
 767
 768         rc = mdt_epoch_unpack(info);
 769         if (rc)
 770                 RETURN(rc);
 771
 772         RETURN(mdt_setattr_unpack_rec(info));
 773 }
 774
 775 static int mdt_create_unpack(struct mdt_thread_info *info)
 776 {
 777         struct md_ucred         *uc  = mdt_ucred(info);
 778         struct mdt_rec_create   *rec;
 779         struct lu_attr          *attr = &info->mti_attr.ma_attr;
 780         struct mdt_reint_record *rr = &info->mti_rr;
 781         struct req_capsule      *pill = &info->mti_pill;
 782         struct md_op_spec       *sp = &info->mti_spec;
 783         int rc;
 784         ENTRY;
 785
 786         rec = req_capsule_client_get(pill, &RMF_REC_CREATE);
 787         if (rec == NULL)
 788                 RETURN(-EFAULT);
 789
 790         uc->mu_fsuid = rec->cr_fsuid;
 791         uc->mu_fsgid = rec->cr_fsgid;
 792         uc->mu_cap   = rec->cr_cap;
 793         uc->mu_suppgids[0] = rec->cr_suppgid1;
 794         uc->mu_suppgids[1] = -1;
 795
 796         rr->rr_fid1 = &rec->cr_fid1;
 797         rr->rr_fid2 = &rec->cr_fid2;
 798         attr->la_mode = rec->cr_mode;
 799         attr->la_rdev  = rec->cr_rdev;
 800         attr->la_uid   = rec->cr_fsuid;
 801         attr->la_gid   = rec->cr_fsgid;
 802         attr->la_ctime = rec->cr_time;
 803         attr->la_mtime = rec->cr_time;
 804         attr->la_atime = rec->cr_time;
 805         attr->la_valid = LA_MODE | LA_RDEV | LA_UID | LA_GID |
 806                          LA_CTIME | LA_MTIME | LA_ATIME;
 807         memset(&sp->u, 0, sizeof(sp->u));
 808         sp->sp_cr_flags = rec->cr_flags;
 809         sp->sp_ck_split = !!(rec->cr_bias & MDS_CHECK_SPLIT);
 810         info->mti_cross_ref = !!(rec->cr_bias & MDS_CROSS_REF);
 811
 812         if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
 813                 mdt_set_capainfo(info, 0, rr->rr_fid1,
 814                                  req_capsule_client_get(pill, &RMF_CAPA1));
 815         mdt_set_capainfo(info, 1, rr->rr_fid2, BYPASS_CAPA);
 816
 817         rr->rr_name = req_capsule_client_get(pill, &RMF_NAME);
 818         rr->rr_namelen = req_capsule_get_size(pill, &RMF_NAME, RCL_CLIENT) - 1;
 819         LASSERT(rr->rr_namelen > 0);
 820
 821 #ifdef CONFIG_FS_POSIX_ACL
 822         if (sp->sp_cr_flags & MDS_CREATE_RMT_ACL) {
 823                 if (S_ISDIR(attr->la_mode))
 824                         sp->u.sp_pfid = rr->rr_fid1;
 825                 req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_RMT_ACL);
 826                 LASSERT(req_capsule_field_present(pill, &RMF_EADATA,
 827                                                   RCL_CLIENT));
 828                 sp->u.sp_ea.eadata = req_capsule_client_get(pill, &RMF_EADATA);
 829                 sp->u.sp_ea.eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
 830                                                                 RCL_CLIENT);
 831                 sp->u.sp_ea.fid = rr->rr_fid1;
 832                 RETURN(0);
 833         }
 834 #endif
 835         if (S_ISDIR(attr->la_mode)) {
 836                 /* pass parent fid for cross-ref cases */
 837                 sp->u.sp_pfid = rr->rr_fid1;
 838                 if (sp->sp_cr_flags & MDS_CREATE_SLAVE_OBJ) {
 839                         /* create salve object req, need
 840                          * unpack split ea here
 841                          */
 842                        req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_SLAVE);
 843                        LASSERT(req_capsule_field_present(pill, &RMF_EADATA,
 844                                                          RCL_CLIENT));
 845                        sp->u.sp_ea.eadata = req_capsule_client_get(pill,
 846                                                                    &RMF_EADATA);
 847                        sp->u.sp_ea.eadatalen = req_capsule_get_size(pill,
 848                                                                     &RMF_EADATA,
 849                                                                     RCL_CLIENT);
 850                        sp->u.sp_ea.fid = rr->rr_fid1;
 851                        RETURN(0);
 852                 }
 853                 req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_RMT_ACL);
 854         } else if (S_ISLNK(attr->la_mode)) {
 855                 const char *tgt = NULL;
 856
 857                 req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_SYM);
 858                 if (req_capsule_get_size(pill, &RMF_SYMTGT, RCL_CLIENT)) {
 859                         tgt = req_capsule_client_get(pill, &RMF_SYMTGT);
 860                         sp->u.sp_symname = tgt;
 861                 }
 862                 if (tgt == NULL)
 863                         RETURN(-EFAULT);
 864         } else {
 865                 req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_RMT_ACL);
 866         }
 867         rc = mdt_dlmreq_unpack(info);
 868         RETURN(rc);
 869 }
 870
 871 static int mdt_link_unpack(struct mdt_thread_info *info)
 872 {
 873         struct md_ucred         *uc  = mdt_ucred(info);
 874         struct mdt_rec_link     *rec;
 875         struct lu_attr          *attr = &info->mti_attr.ma_attr;
 876         struct mdt_reint_record *rr = &info->mti_rr;
 877         struct req_capsule      *pill = &info->mti_pill;
 878         int rc;
 879         ENTRY;
 880
 881         rec = req_capsule_client_get(pill, &RMF_REC_LINK);
 882         if (rec == NULL)
 883                 RETURN(-EFAULT);
 884
 885         uc->mu_fsuid = rec->lk_fsuid;
 886         uc->mu_fsgid = rec->lk_fsgid;
 887         uc->mu_cap   = rec->lk_cap;
 888         uc->mu_suppgids[0] = rec->lk_suppgid1;
 889         uc->mu_suppgids[1] = rec->lk_suppgid2;
 890
 891         attr->la_uid = rec->lk_fsuid;
 892         attr->la_gid = rec->lk_fsgid;
 893         rr->rr_fid1 = &rec->lk_fid1;
 894         rr->rr_fid2 = &rec->lk_fid2;
 895         attr->la_ctime = rec->lk_time;
 896         attr->la_mtime = rec->lk_time;
 897         attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME;
 898
 899         if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
 900                 mdt_set_capainfo(info, 0, rr->rr_fid1,
 901                                  req_capsule_client_get(pill, &RMF_CAPA1));
 902         if (req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT))
 903                 mdt_set_capainfo(info, 1, rr->rr_fid2,
 904                                  req_capsule_client_get(pill, &RMF_CAPA2));
 905
 906         rr->rr_name = req_capsule_client_get(pill, &RMF_NAME);
 907         if (rr->rr_name == NULL)
 908                 RETURN(-EFAULT);
 909         rr->rr_namelen = req_capsule_get_size(pill, &RMF_NAME, RCL_CLIENT) - 1;
 910         LASSERT(rr->rr_namelen > 0);
 911         info->mti_spec.sp_ck_split = !!(rec->lk_bias & MDS_CHECK_SPLIT);
 912         info->mti_cross_ref = !!(rec->lk_bias & MDS_CROSS_REF);
 913
 914         rc = mdt_dlmreq_unpack(info);
 915         RETURN(rc);
 916 }
 917
 918 static int mdt_unlink_unpack(struct mdt_thread_info *info)
 919 {
 920         struct md_ucred         *uc  = mdt_ucred(info);
 921         struct mdt_rec_unlink   *rec;
 922         struct md_attr          *ma = &info->mti_attr;
 923         struct lu_attr          *attr = &info->mti_attr.ma_attr;
 924         struct mdt_reint_record *rr = &info->mti_rr;
 925         struct req_capsule      *pill = &info->mti_pill;
 926         int rc;
 927         ENTRY;
 928
 929         rec = req_capsule_client_get(pill, &RMF_REC_UNLINK);
 930         if (rec == NULL)
 931                 RETURN(-EFAULT);
 932
 933         uc->mu_fsuid = rec->ul_fsuid;
 934         uc->mu_fsgid = rec->ul_fsgid;
 935         uc->mu_cap   = rec->ul_cap;
 936         uc->mu_suppgids[0] = rec->ul_suppgid;
 937         uc->mu_suppgids[1] = -1;
 938
 939         attr->la_uid = rec->ul_fsuid;
 940         attr->la_gid = rec->ul_fsgid;
 941         rr->rr_fid1 = &rec->ul_fid1;
 942         rr->rr_fid2 = &rec->ul_fid2;
 943         attr->la_ctime = rec->ul_time;
 944         attr->la_mtime = rec->ul_time;
 945         attr->la_mode  = rec->ul_mode;
 946         attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME | LA_MODE;
 947
 948         if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
 949                 mdt_set_capainfo(info, 0, rr->rr_fid1,
 950                                  req_capsule_client_get(pill, &RMF_CAPA1));
 951
 952         rr->rr_name = req_capsule_client_get(pill, &RMF_NAME);
 953         if (rr->rr_name == NULL)
 954                 RETURN(-EFAULT);
 955         rr->rr_namelen = req_capsule_get_size(pill, &RMF_NAME, RCL_CLIENT) - 1;
 956         LASSERT(rr->rr_namelen > 0);
 957         info->mti_spec.sp_ck_split = !!(rec->ul_bias & MDS_CHECK_SPLIT);
 958         info->mti_cross_ref = !!(rec->ul_bias & MDS_CROSS_REF);
 959         if (rec->ul_bias & MDS_VTX_BYPASS)
 960                 ma->ma_attr_flags |= MDS_VTX_BYPASS;
 961         else
 962                 ma->ma_attr_flags &= ~MDS_VTX_BYPASS;
 963
 964         rc = mdt_dlmreq_unpack(info);
 965         RETURN(rc);
 966 }
 967
 968 static int mdt_rename_unpack(struct mdt_thread_info *info)
 969 {
 970         struct md_ucred         *uc = mdt_ucred(info);
 971         struct mdt_rec_rename   *rec;
 972         struct md_attr          *ma = &info->mti_attr;
 973         struct lu_attr          *attr = &info->mti_attr.ma_attr;
 974         struct mdt_reint_record *rr = &info->mti_rr;
 975         struct req_capsule      *pill = &info->mti_pill;
 976         int rc;
 977         ENTRY;
 978
 979         rec = req_capsule_client_get(pill, &RMF_REC_RENAME);
 980         if (rec == NULL)
 981                 RETURN(-EFAULT);
 982
 983         uc->mu_fsuid = rec->rn_fsuid;
 984         uc->mu_fsgid = rec->rn_fsgid;
 985         uc->mu_cap   = rec->rn_cap;
 986         uc->mu_suppgids[0] = rec->rn_suppgid1;
 987         uc->mu_suppgids[1] = rec->rn_suppgid2;
 988
 989         attr->la_uid = rec->rn_fsuid;
 990         attr->la_gid = rec->rn_fsgid;
 991         rr->rr_fid1 = &rec->rn_fid1;
 992         rr->rr_fid2 = &rec->rn_fid2;
 993         attr->la_ctime = rec->rn_time;
 994         attr->la_mtime = rec->rn_time;
 995         /* rename_tgt contains the mode already */
 996         attr->la_mode = rec->rn_mode;
 997         attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME | LA_MODE;
 998
 999         if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1000                 mdt_set_capainfo(info, 0, rr->rr_fid1,
1001                                  req_capsule_client_get(pill, &RMF_CAPA1));
1002         if (req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT))
1003                 mdt_set_capainfo(info, 1, rr->rr_fid2,
1004                                  req_capsule_client_get(pill, &RMF_CAPA2));
1005
1006         rr->rr_name = req_capsule_client_get(pill, &RMF_NAME);
1007         rr->rr_tgt = req_capsule_client_get(pill, &RMF_SYMTGT);
1008         if (rr->rr_name == NULL || rr->rr_tgt == NULL)
1009                 RETURN(-EFAULT);
1010         rr->rr_namelen = req_capsule_get_size(pill, &RMF_NAME, RCL_CLIENT) - 1;
1011         LASSERT(rr->rr_namelen > 0);
1012         rr->rr_tgtlen = req_capsule_get_size(pill, &RMF_SYMTGT, RCL_CLIENT) - 1;
1013         LASSERT(rr->rr_tgtlen > 0);
1014         info->mti_spec.sp_ck_split = !!(rec->rn_bias & MDS_CHECK_SPLIT);
1015         info->mti_cross_ref = !!(rec->rn_bias & MDS_CROSS_REF);
1016         if (rec->rn_bias & MDS_VTX_BYPASS)
1017                 ma->ma_attr_flags |= MDS_VTX_BYPASS;
1018         else
1019                 ma->ma_attr_flags &= ~MDS_VTX_BYPASS;
1020
1021         rc = mdt_dlmreq_unpack(info);
1022         RETURN(rc);
1023 }
1024
1025 static int mdt_open_unpack(struct mdt_thread_info *info)
1026 {
1027         struct md_ucred         *uc = mdt_ucred(info);
1028         struct mdt_rec_create   *rec;
1029         struct lu_attr          *attr = &info->mti_attr.ma_attr;
1030         struct req_capsule      *pill = &info->mti_pill;
1031         struct mdt_reint_record *rr   = &info->mti_rr;
1032         struct ptlrpc_request   *req  = mdt_info_req(info);
1033         struct md_op_spec       *sp   = &info->mti_spec;
1034         ENTRY;
1035
1036         rec = req_capsule_client_get(pill, &RMF_REC_CREATE);
1037         if (rec == NULL)
1038                 RETURN(-EFAULT);
1039
1040         uc->mu_fsuid = rec->cr_fsuid;
1041         uc->mu_fsgid = rec->cr_fsgid;
1042         uc->mu_cap   = rec->cr_cap;
1043         uc->mu_suppgids[0] = rec->cr_suppgid1;
1044         uc->mu_suppgids[1] = rec->cr_suppgid2;
1045
1046         rr->rr_fid1   = &rec->cr_fid1;
1047         rr->rr_fid2   = &rec->cr_fid2;
1048         rr->rr_handle = &rec->cr_old_handle;
1049         attr->la_mode = rec->cr_mode;
1050         attr->la_rdev  = rec->cr_rdev;
1051         attr->la_uid   = rec->cr_fsuid;
1052         attr->la_gid   = rec->cr_fsgid;
1053         attr->la_ctime = rec->cr_time;
1054         attr->la_mtime = rec->cr_time;
1055         attr->la_atime = rec->cr_time;
1056         attr->la_valid = LA_MODE  | LA_RDEV  | LA_UID   | LA_GID |
1057                          LA_CTIME | LA_MTIME | LA_ATIME;
1058         memset(&info->mti_spec.u, 0, sizeof(info->mti_spec.u));
1059         info->mti_spec.sp_cr_flags = rec->cr_flags;
1060         info->mti_replayepoch = rec->cr_ioepoch;
1061
1062         info->mti_spec.sp_ck_split = !!(rec->cr_bias & MDS_CHECK_SPLIT);
1063         info->mti_cross_ref = !!(rec->cr_bias & MDS_CROSS_REF);
1064
1065         if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
1066                 mdt_set_capainfo(info, 0, rr->rr_fid1,
1067                                  req_capsule_client_get(pill, &RMF_CAPA1));
1068         if ((lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY) &&
1069             (req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT))) {
1070 #if 0
1071                 mdt_set_capainfo(info, 1, rr->rr_fid2,
1072                                  req_capsule_client_get(pill, &RMF_CAPA2));
1073 #else
1074                 /*
1075                  * FIXME: capa in replay open request might have expired,
1076                  * bypass capa check. Security hole?
1077                  */
1078                 mdt_set_capainfo(info, 0, rr->rr_fid1, BYPASS_CAPA);
1079                 mdt_set_capainfo(info, 1, rr->rr_fid2, BYPASS_CAPA);
1080 #endif
1081         }
1082
1083         rr->rr_name = req_capsule_client_get(pill, &RMF_NAME);
1084         if (rr->rr_name == NULL)
1085                 RETURN(-EFAULT);
1086         rr->rr_namelen = req_capsule_get_size(pill, &RMF_NAME, RCL_CLIENT) - 1;
1087
1088         sp->u.sp_ea.eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
1089                                                      RCL_CLIENT);
1090         if (sp->u.sp_ea.eadatalen) {
1091                 sp->u.sp_ea.eadata = req_capsule_client_get(pill, &RMF_EADATA);
1092                 if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY)
1093                         sp->u.sp_ea.no_lov_create = 1;
1094         }
1095
1096         RETURN(0);
1097 }
1098
1099 typedef int (*reint_unpacker)(struct mdt_thread_info *info);
1100
1101 static reint_unpacker mdt_reint_unpackers[REINT_MAX] = {
1102         [REINT_SETATTR]  = mdt_setattr_unpack,
1103         [REINT_CREATE]   = mdt_create_unpack,
1104         [REINT_LINK]     = mdt_link_unpack,
1105         [REINT_UNLINK]   = mdt_unlink_unpack,
1106         [REINT_RENAME]   = mdt_rename_unpack,
1107         [REINT_OPEN]     = mdt_open_unpack
1108 };
1109
1110 int mdt_reint_unpack(struct mdt_thread_info *info, __u32 op)
1111 {
1112         int rc;
1113         ENTRY;
1114
1115         memset(&info->mti_rr, 0, sizeof(info->mti_rr));
1116         if (op < REINT_MAX && mdt_reint_unpackers[op] != NULL) {
1117                 info->mti_rr.rr_opcode = op;
1118                 rc = mdt_reint_unpackers[op](info);
1119         } else {
1120                 CERROR("Unexpected opcode %d\n", op);
1121                 rc = -EFAULT;
1122         }
1123         RETURN(rc);
1124 }