-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * lustre/mdt/mdt_lib.c
- * Lustre Metadata Target (mdt) request unpacking helper.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * Copyright (c) 2006 Cluster File Systems, Inc.
- * Author: Peter Braam <braam@clusterfs.com>
- * Author: Andreas Dilger <adilger@clusterfs.com>
- * Author: Phil Schwan <phil@clusterfs.com>
- * Author: Mike Shaver <shaver@clusterfs.com>
- * Author: Nikita Danilov <nikita@clusterfs.com>
- * Author: Huang Hua <huanghua@clusterfs.com>
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * This file is part of the Lustre file system, http://www.lustre.org
- * Lustre is a trademark of Cluster File Systems, Inc.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
- * You may have signed or agreed to another license before downloading
- * this software. If so, you are bound by the terms and conditions
- * of that agreement, and the following does not apply to you. See the
- * LICENSE file included with this distribution for more information.
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
*
- * If you did not agree to a different license, then this copy of Lustre
- * is open source software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
*
- * In either case, Lustre is distributed in the hope that it will be
- * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * license text for more details.
+ * Copyright (c) 2011, 2013, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/mdt/mdt_lib.c
+ *
+ * Lustre Metadata Target (mdt) request unpacking helper.
+ *
+ * Author: Peter Braam <braam@clusterfs.com>
+ * Author: Andreas Dilger <adilger@clusterfs.com>
+ * Author: Phil Schwan <phil@clusterfs.com>
+ * Author: Mike Shaver <shaver@clusterfs.com>
+ * Author: Nikita Danilov <nikita@clusterfs.com>
+ * Author: Huang Hua <huanghua@clusterfs.com>
+ * Author: Fan Yong <fanyong@clusterfs.com>
*/
-
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
#define DEBUG_SUBSYSTEM S_MDS
#include "mdt_internal.h"
+#include <lnet/lib-lnet.h>
typedef enum ucred_init_type {
REC_INIT = 2
} ucred_init_type_t;
-int groups_from_list(struct group_info *ginfo, gid_t *glist)
+void mdt_exit_ucred(struct mdt_thread_info *info)
{
- int i;
- int count = ginfo->ngroups;
-
- /* fill group_info from gid array */
- for (i = 0; i < ginfo->nblocks; i++) {
- int cp_count = min(NGROUPS_PER_BLOCK, count);
- int off = i * NGROUPS_PER_BLOCK;
- int len = cp_count * sizeof(*glist);
-
- if (memcpy(ginfo->blocks[i], glist + off, len))
- return -EFAULT;
-
- count -= cp_count;
- }
- return 0;
+ struct lu_ucred *uc = mdt_ucred(info);
+ struct mdt_device *mdt = info->mti_mdt;
+
+ LASSERT(uc != NULL);
+ if (uc->uc_valid != UCRED_INIT) {
+ uc->uc_suppgids[0] = uc->uc_suppgids[1] = -1;
+ if (uc->uc_ginfo) {
+ put_group_info(uc->uc_ginfo);
+ uc->uc_ginfo = NULL;
+ }
+ if (uc->uc_identity) {
+ mdt_identity_put(mdt->mdt_identity_cache,
+ uc->uc_identity);
+ uc->uc_identity = NULL;
+ }
+ uc->uc_valid = UCRED_INIT;
+ }
}
-/* groups_sort() is copied from linux kernel! */
-/* a simple shell-metzner sort */
-void groups_sort(struct group_info *group_info)
+static int match_nosquash_list(struct rw_semaphore *sem,
+ cfs_list_t *nidlist,
+ lnet_nid_t peernid)
{
- int base, max, stride;
- int gidsetsize = group_info->ngroups;
-
- for (stride = 1; stride < gidsetsize; stride = 3 * stride + 1)
- ; /* nothing */
- stride /= 3;
-
- while (stride) {
- max = gidsetsize - stride;
- for (base = 0; base < max; base++) {
- int left = base;
- int right = left + stride;
- gid_t tmp = GROUP_AT(group_info, right);
-
- while (left >= 0 && GROUP_AT(group_info, left) > tmp) {
- GROUP_AT(group_info, right) =
- GROUP_AT(group_info, left);
- right = left;
- left -= stride;
- }
- GROUP_AT(group_info, right) = tmp;
- }
- stride /= 3;
- }
+ int rc;
+ ENTRY;
+ down_read(sem);
+ rc = cfs_match_nid(peernid, nidlist);
+ up_read(sem);
+ RETURN(rc);
}
-void mdt_exit_ucred(struct mdt_thread_info *info)
+/* root_squash for inter-MDS operations */
+static int mdt_root_squash(struct mdt_thread_info *info, lnet_nid_t peernid)
{
- struct md_ucred *uc = mdt_ucred(info);
- struct mdt_device *mdt = info->mti_mdt;
-
- if (uc->mu_valid != UCRED_INIT) {
- uc->mu_suppgids[0] = uc->mu_suppgids[1] = -1;
- if (uc->mu_ginfo) {
- groups_free(uc->mu_ginfo);
- uc->mu_ginfo = NULL;
- }
- if (uc->mu_identity) {
- mdt_identity_put(mdt->mdt_identity_cache,
- uc->mu_identity);
- uc->mu_identity = NULL;
- }
- uc->mu_valid = UCRED_INIT;
- }
+ struct lu_ucred *ucred = mdt_ucred(info);
+ struct root_squash_info *squash = &info->mti_mdt->mdt_squash;
+ ENTRY;
+
+ LASSERT(ucred != NULL);
+ if (!squash->rsi_uid || ucred->uc_fsuid)
+ RETURN(0);
+
+ if (match_nosquash_list(&squash->rsi_sem,
+ &squash->rsi_nosquash_nids,
+ peernid)) {
+ CDEBUG(D_OTHER, "%s is in nosquash_nids list\n",
+ libcfs_nid2str(peernid));
+ RETURN(0);
+ }
+
+ CDEBUG(D_OTHER, "squash req from %s, (%d:%d/%x)=>(%d:%d/%x)\n",
+ libcfs_nid2str(peernid),
+ ucred->uc_fsuid, ucred->uc_fsgid, ucred->uc_cap,
+ squash->rsi_uid, squash->rsi_gid, 0);
+
+ ucred->uc_fsuid = squash->rsi_uid;
+ ucred->uc_fsgid = squash->rsi_gid;
+ ucred->uc_cap = 0;
+ ucred->uc_suppgids[0] = -1;
+ ucred->uc_suppgids[1] = -1;
+
+ RETURN(0);
}
-static int old_init_ucred(struct mdt_thread_info *info,
- struct mdt_body *body)
+static int new_init_ucred(struct mdt_thread_info *info, ucred_init_type_t type,
+ void *buf)
{
- struct md_ucred *uc = mdt_ucred(info);
- struct mdt_device *mdt = info->mti_mdt;
- struct mdt_identity *identity = NULL;
+ struct ptlrpc_request *req = mdt_info_req(info);
+ struct mdt_device *mdt = info->mti_mdt;
+ struct ptlrpc_user_desc *pud = req->rq_user_desc;
+ struct lu_ucred *ucred = mdt_ucred(info);
+ lnet_nid_t peernid = req->rq_peer.nid;
+ __u32 perm = 0;
+ __u32 remote = exp_connect_rmtclient(info->mti_exp);
+ int setuid;
+ int setgid;
+ int rc = 0;
ENTRY;
- uc->mu_valid = UCRED_INVALID;
+ LASSERT(req->rq_auth_gss);
+ LASSERT(!req->rq_auth_usr_mdt);
+ LASSERT(req->rq_user_desc);
+ LASSERT(ucred != NULL);
- if (!is_identity_get_disabled(mdt->mdt_identity_cache)) {
- /* get identity info of this user */
- identity = mdt_identity_get(mdt->mdt_identity_cache,
- body->fsuid);
- if (!identity) {
- CERROR("Deny access without identity: uid %d\n",
- body->fsuid);
- RETURN(-EACCES);
- }
- }
+ ucred->uc_valid = UCRED_INVALID;
- uc->mu_valid = UCRED_OLD;
- uc->mu_squash = SQUASH_NONE;
- uc->mu_o_uid = uc->mu_uid = body->uid;
- uc->mu_o_gid = uc->mu_gid = body->gid;
- uc->mu_o_fsuid = uc->mu_fsuid = body->fsuid;
- uc->mu_o_fsgid = uc->mu_fsgid = body->fsgid;
- uc->mu_suppgids[0] = body->suppgid;
- uc->mu_suppgids[1] = -1;
- if (uc->mu_fsuid)
- uc->mu_cap = body->capability & ~CAP_FS_MASK;
- else
- uc->mu_cap = body->capability;
- uc->mu_ginfo = NULL;
- uc->mu_identity = identity;
+ ucred->uc_o_uid = pud->pud_uid;
+ ucred->uc_o_gid = pud->pud_gid;
+ ucred->uc_o_fsuid = pud->pud_fsuid;
+ ucred->uc_o_fsgid = pud->pud_fsgid;
- RETURN(0);
-}
+ if (type == BODY_INIT) {
+ struct mdt_body *body = (struct mdt_body *)buf;
-static int old_init_ucred_reint(struct mdt_thread_info *info)
-{
- struct md_ucred *uc = mdt_ucred(info);
- struct mdt_device *mdt = info->mti_mdt;
- struct mdt_identity *identity = NULL;
+ ucred->uc_suppgids[0] = body->suppgid;
+ ucred->uc_suppgids[1] = -1;
+ }
- ENTRY;
+ /* sanity check: we expect the uid which client claimed is true */
+ if (remote) {
+ if (!uid_valid(make_kuid(&init_user_ns, req->rq_auth_mapped_uid))) {
+ CDEBUG(D_SEC, "remote user not mapped, deny access!\n");
+ CDEBUG(D_SEC, "remote user not mapped, deny access!\n");
+ RETURN(-EACCES);
+ }
- uc->mu_valid = UCRED_INVALID;
+ if (ptlrpc_user_desc_do_idmap(req, pud))
+ RETURN(-EACCES);
- if (!is_identity_get_disabled(mdt->mdt_identity_cache)) {
- /* get identity info of this user */
- identity = mdt_identity_get(mdt->mdt_identity_cache,
- uc->mu_fsuid);
- if (!identity) {
- CERROR("Deny access without identity: uid %d\n",
- uc->mu_fsuid);
+ if (req->rq_auth_mapped_uid != pud->pud_uid) {
+ CDEBUG(D_SEC, "remote client %s: auth/mapped uid %u/%u "
+ "while client claims %u:%u/%u:%u\n",
+ libcfs_nid2str(peernid), req->rq_auth_uid,
+ req->rq_auth_mapped_uid,
+ pud->pud_uid, pud->pud_gid,
+ pud->pud_fsuid, pud->pud_fsgid);
RETURN(-EACCES);
}
- }
-
- uc->mu_valid = UCRED_OLD;
- uc->mu_squash = SQUASH_NONE;
- uc->mu_o_uid = uc->mu_o_fsuid = uc->mu_uid = uc->mu_fsuid;
- uc->mu_o_gid = uc->mu_o_fsgid = uc->mu_gid = uc->mu_fsgid;
- if (uc->mu_fsuid)
- uc->mu_cap &= ~CAP_FS_MASK;
- uc->mu_ginfo = NULL;
- uc->mu_identity = identity;
-
- RETURN(0);
-}
-
-static int nid_nosquash(struct mdt_device *mdt, lnet_nid_t nid)
-{
- struct rootsquash_info *rsi = mdt->mdt_rootsquash_info;
- int i;
-
- for (i = 0; i < rsi->rsi_n_nosquash_nids; i++)
- if ((rsi->rsi_nosquash_nids[i] == nid) ||
- (rsi->rsi_nosquash_nids[i] == LNET_NID_ANY))
- return 1;
-
- return 0;
-}
-
-static int mdt_squash_root(struct mdt_device *mdt, struct md_ucred *ucred,
- struct ptlrpc_user_desc *pud, lnet_nid_t peernid)
-{
- struct rootsquash_info *rsi = mdt->mdt_rootsquash_info;
-
- if (!rsi || (!rsi->rsi_uid && !rsi->rsi_gid) ||
- nid_nosquash(mdt, peernid))
- return 0;
-
- CDEBUG(D_SEC, "squash req from "LPX64":"
- "(%u:%u-%u:%u/%x)=>(%u:%u-%u:%u/%x)\n", peernid,
- pud->pud_uid, pud->pud_gid,
- pud->pud_fsuid, pud->pud_fsgid, pud->pud_cap,
- pud->pud_uid ? pud->pud_uid : rsi->rsi_uid,
- pud->pud_uid ? pud->pud_gid : rsi->rsi_gid,
- pud->pud_fsuid ? pud->pud_fsuid : rsi->rsi_uid,
- pud->pud_fsuid ? pud->pud_fsgid : rsi->rsi_gid,
- pud->pud_cap & ~CAP_FS_MASK);
-
- if (rsi->rsi_uid) {
- if (!pud->pud_uid) {
- ucred->mu_uid = rsi->rsi_uid;
- ucred->mu_squash |= SQUASH_UID;
- } else {
- ucred->mu_uid = pud->pud_uid;
+ } else {
+ if (req->rq_auth_uid != pud->pud_uid) {
+ CDEBUG(D_SEC, "local client %s: auth uid %u "
+ "while client claims %u:%u/%u:%u\n",
+ libcfs_nid2str(peernid), req->rq_auth_uid,
+ pud->pud_uid, pud->pud_gid,
+ pud->pud_fsuid, pud->pud_fsgid);
+ RETURN(-EACCES);
}
+ }
- if (!pud->pud_fsuid) {
- ucred->mu_fsuid = rsi->rsi_uid;
- ucred->mu_squash |= SQUASH_UID;
+ if (is_identity_get_disabled(mdt->mdt_identity_cache)) {
+ if (remote) {
+ CDEBUG(D_SEC, "remote client must run with identity_get "
+ "enabled!\n");
+ RETURN(-EACCES);
} else {
- ucred->mu_fsuid = pud->pud_fsuid;
+ ucred->uc_identity = NULL;
+ perm = CFS_SETUID_PERM | CFS_SETGID_PERM |
+ CFS_SETGRP_PERM;
}
} else {
- ucred->mu_uid = pud->pud_uid;
- ucred->mu_fsuid = pud->pud_fsuid;
- }
+ struct md_identity *identity;
- if (rsi->rsi_gid) {
- int i;
-
- if (!pud->pud_gid) {
- ucred->mu_gid = rsi->rsi_gid;
- ucred->mu_squash |= SQUASH_GID;
+ identity = mdt_identity_get(mdt->mdt_identity_cache,
+ pud->pud_uid);
+ if (IS_ERR(identity)) {
+ if (unlikely(PTR_ERR(identity) == -EREMCHG &&
+ !remote)) {
+ ucred->uc_identity = NULL;
+ perm = CFS_SETUID_PERM | CFS_SETGID_PERM |
+ CFS_SETGRP_PERM;
+ } else {
+ CDEBUG(D_SEC, "Deny access without identity: uid %u\n",
+ pud->pud_uid);
+ RETURN(-EACCES);
+ }
} else {
- ucred->mu_gid = pud->pud_gid;
+ ucred->uc_identity = identity;
+ perm = mdt_identity_get_perm(ucred->uc_identity,
+ remote, peernid);
}
+ }
- if (!pud->pud_fsgid) {
- ucred->mu_fsgid = rsi->rsi_gid;
- ucred->mu_squash |= SQUASH_GID;
- } else {
- ucred->mu_fsgid = pud->pud_fsgid;
- }
+ /* find out the setuid/setgid attempt */
+ setuid = (pud->pud_uid != pud->pud_fsuid);
+ setgid = ((pud->pud_gid != pud->pud_fsgid) ||
+ (ucred->uc_identity &&
+ (pud->pud_gid != ucred->uc_identity->mi_gid)));
- for (i = 0; i < 2; i++) {
- if (!ucred->mu_suppgids[i]) {
- ucred->mu_suppgids[i] = rsi->rsi_gid;
- ucred->mu_squash |= SQUASH_GID;
- }
- }
+ /* check permission of setuid */
+ if (setuid && !(perm & CFS_SETUID_PERM)) {
+ CDEBUG(D_SEC, "mdt blocked setuid attempt (%u -> %u) from %s\n",
+ pud->pud_uid, pud->pud_fsuid, libcfs_nid2str(peernid));
+ GOTO(out, rc = -EACCES);
+ }
- for (i = 0; i < pud->pud_ngroups; i++) {
- if (!pud->pud_groups[i]) {
- pud->pud_groups[i] = rsi->rsi_gid;
- ucred->mu_squash |= SQUASH_GID;
- }
- }
- } else {
- ucred->mu_gid = pud->pud_gid;
- ucred->mu_fsgid = pud->pud_fsgid;
+ /* check permission of setgid */
+ if (setgid && !(perm & CFS_SETGID_PERM)) {
+ CDEBUG(D_SEC, "mdt blocked setgid attempt (%u:%u/%u:%u -> %u) "
+ "from %s\n", pud->pud_uid, pud->pud_gid,
+ pud->pud_fsuid, pud->pud_fsgid,
+ ucred->uc_identity->mi_gid, libcfs_nid2str(peernid));
+ GOTO(out, rc = -EACCES);
}
- return 1;
+ /*
+ * NB: remote client not allowed to setgroups anyway.
+ */
+ if (!remote && perm & CFS_SETGRP_PERM) {
+ if (pud->pud_ngroups) {
+ /* setgroups for local client */
+ ucred->uc_ginfo = groups_alloc(pud->pud_ngroups);
+ if (!ucred->uc_ginfo) {
+ CERROR("failed to alloc %d groups\n",
+ pud->pud_ngroups);
+ GOTO(out, rc = -ENOMEM);
+ }
+
+ lustre_groups_from_list(ucred->uc_ginfo,
+ pud->pud_groups);
+ lustre_groups_sort(ucred->uc_ginfo);
+ } else {
+ ucred->uc_ginfo = NULL;
+ }
+ } else {
+ ucred->uc_suppgids[0] = -1;
+ ucred->uc_suppgids[1] = -1;
+ ucred->uc_ginfo = NULL;
+ }
+
+ ucred->uc_uid = pud->pud_uid;
+ ucred->uc_gid = pud->pud_gid;
+ ucred->uc_fsuid = pud->pud_fsuid;
+ ucred->uc_fsgid = pud->pud_fsgid;
+
+ /* process root_squash here. */
+ mdt_root_squash(info, peernid);
+
+ /* remove fs privilege for non-root user. */
+ if (ucred->uc_fsuid)
+ ucred->uc_cap = pud->pud_cap & ~CFS_CAP_FS_MASK;
+ else
+ ucred->uc_cap = pud->pud_cap;
+ if (remote && !(perm & CFS_RMTOWN_PERM))
+ ucred->uc_cap &= ~(CFS_CAP_SYS_RESOURCE_MASK |
+ CFS_CAP_CHOWN_MASK);
+ ucred->uc_valid = UCRED_NEW;
+
+ EXIT;
+
+out:
+ if (rc) {
+ if (ucred->uc_ginfo) {
+ put_group_info(ucred->uc_ginfo);
+ ucred->uc_ginfo = NULL;
+ }
+ if (ucred->uc_identity) {
+ mdt_identity_put(mdt->mdt_identity_cache,
+ ucred->uc_identity);
+ ucred->uc_identity = NULL;
+ }
+ }
+
+ return rc;
}
-static int new_init_ucred(struct mdt_thread_info *info, ucred_init_type_t type,
- void *buf)
+int mdt_check_ucred(struct mdt_thread_info *info)
{
struct ptlrpc_request *req = mdt_info_req(info);
- struct mdt_export_data *med = mdt_req2med(req);
struct mdt_device *mdt = info->mti_mdt;
struct ptlrpc_user_desc *pud = req->rq_user_desc;
- struct md_ucred *ucred = mdt_ucred(info);
- struct mdt_identity *identity = NULL;
- lnet_nid_t peernid = req->rq_peer.nid;
- __u32 setxid_perm = 0;
- int setuid;
- int setgid;
- int rc = 0;
+ struct lu_ucred *ucred = mdt_ucred(info);
+ struct md_identity *identity = NULL;
+ lnet_nid_t peernid = req->rq_peer.nid;
+ __u32 perm = 0;
+ __u32 remote = exp_connect_rmtclient(info->mti_exp);
+ int setuid;
+ int setgid;
+ int rc = 0;
ENTRY;
- LASSERT(req->rq_auth_gss);
- LASSERT(!req->rq_auth_usr_mdt);
- LASSERT(req->rq_user_desc);
-
- ucred->mu_valid = UCRED_INVALID;
-
- ucred->mu_o_uid = pud->pud_uid;
- ucred->mu_o_gid = pud->pud_gid;
- ucred->mu_o_fsuid = pud->pud_fsuid;
- ucred->mu_o_fsgid = pud->pud_fsgid;
+ LASSERT(ucred != NULL);
+ if ((ucred->uc_valid == UCRED_OLD) || (ucred->uc_valid == UCRED_NEW))
+ RETURN(0);
- if (type == BODY_INIT) {
- struct mdt_body *body = (struct mdt_body *)buf;
-
- ucred->mu_suppgids[0] = body->suppgid;
- ucred->mu_suppgids[1] = -1;
- }
+ if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
+ RETURN(0);
- /* sanity check: we expect the uid which client claimed is true */
- if (med->med_rmtclient) {
- if (req->rq_auth_mapped_uid == INVALID_UID) {
- CWARN("remote user not mapped, deny access!\n");
+ /* sanity check: if we use strong authentication, we expect the
+ * uid which client claimed is true */
+ if (remote) {
+ if (!uid_valid(make_kuid(&init_user_ns, req->rq_auth_mapped_uid))) {
+ CDEBUG(D_SEC, "remote user not mapped, deny access!\n");
RETURN(-EACCES);
}
RETURN(-EACCES);
if (req->rq_auth_mapped_uid != pud->pud_uid) {
- CERROR("remote client "LPU64": auth uid %u "
- "while client claim %u:%u/%u:%u\n",
- peernid, req->rq_auth_uid, pud->pud_uid,
- pud->pud_gid, pud->pud_fsuid, pud->pud_fsgid);
+ CDEBUG(D_SEC, "remote client %s: auth/mapped uid %u/%u "
+ "while client claims %u:%u/%u:%u\n",
+ libcfs_nid2str(peernid), req->rq_auth_uid,
+ req->rq_auth_mapped_uid,
+ pud->pud_uid, pud->pud_gid,
+ pud->pud_fsuid, pud->pud_fsgid);
RETURN(-EACCES);
}
} else {
if (req->rq_auth_uid != pud->pud_uid) {
- CERROR("local client "LPU64": auth uid %u "
- "while client claim %u:%u/%u:%u\n",
- peernid, req->rq_auth_uid, pud->pud_uid,
- pud->pud_gid, pud->pud_fsuid, pud->pud_fsgid);
+ CDEBUG(D_SEC, "local client %s: auth uid %u "
+ "while client claims %u:%u/%u:%u\n",
+ libcfs_nid2str(peernid), req->rq_auth_uid,
+ pud->pud_uid, pud->pud_gid,
+ pud->pud_fsuid, pud->pud_fsgid);
RETURN(-EACCES);
}
}
if (is_identity_get_disabled(mdt->mdt_identity_cache)) {
- if (med->med_rmtclient) {
- CERROR("remote client must run with identity_get "
+ if (remote) {
+ CDEBUG(D_SEC, "remote client must run with identity_get "
"enabled!\n");
RETURN(-EACCES);
- } else {
- setxid_perm |= LUSTRE_SETGRP_PERM;
- goto check_squash;
}
+ RETURN(0);
}
identity = mdt_identity_get(mdt->mdt_identity_cache, pud->pud_uid);
- if (!identity) {
- CERROR("Deny access without identity: uid %d\n", pud->pud_uid);
- RETURN(-EACCES);
+ if (IS_ERR(identity)) {
+ if (unlikely(PTR_ERR(identity) == -EREMCHG &&
+ !remote)) {
+ RETURN(0);
+ } else {
+ CDEBUG(D_SEC, "Deny access without identity: uid %u\n",
+ pud->pud_uid);
+ RETURN(-EACCES);
+ }
}
- setxid_perm = mdt_identity_get_setxid_perm(identity,
- med->med_rmtclient,
- peernid);
-
+ perm = mdt_identity_get_perm(identity, remote, peernid);
/* find out the setuid/setgid attempt */
setuid = (pud->pud_uid != pud->pud_fsuid);
setgid = (pud->pud_gid != pud->pud_fsgid ||
pud->pud_gid != identity->mi_gid);
/* check permission of setuid */
- if (setuid && !(setxid_perm & LUSTRE_SETUID_PERM)) {
- CWARN("mdt blocked setuid attempt (%u -> %u) from "
- LPX64"\n", pud->pud_uid, pud->pud_fsuid, peernid);
+ if (setuid && !(perm & CFS_SETUID_PERM)) {
+ CDEBUG(D_SEC, "mdt blocked setuid attempt (%u -> %u) from %s\n",
+ pud->pud_uid, pud->pud_fsuid, libcfs_nid2str(peernid));
GOTO(out, rc = -EACCES);
}
/* check permission of setgid */
- if (setgid && !(setxid_perm & LUSTRE_SETGID_PERM)) {
- CWARN("mdt blocked setgid attempt (%u:%u/%u:%u -> %u) "
- "from "LPX64"\n", pud->pud_uid, pud->pud_gid,
- pud->pud_fsuid, pud->pud_fsgid, identity->mi_gid,
- peernid);
+ if (setgid && !(perm & CFS_SETGID_PERM)) {
+ CDEBUG(D_SEC, "mdt blocked setgid attempt (%u:%u/%u:%u -> %u) "
+ "from %s\n", pud->pud_uid, pud->pud_gid,
+ pud->pud_fsuid, pud->pud_fsgid, identity->mi_gid,
+ libcfs_nid2str(peernid));
GOTO(out, rc = -EACCES);
}
-check_squash:
- /* FIXME: The exact behavior of root_squash is not defined. */
- ucred->mu_squash = SQUASH_NONE;
- if (mdt_squash_root(mdt, ucred, pud, peernid) == 0) {
- ucred->mu_uid = pud->pud_uid;
- ucred->mu_gid = pud->pud_gid;
- ucred->mu_fsuid = pud->pud_fsuid;
- ucred->mu_fsgid = pud->pud_fsgid;
- }
-
- /* remove fs privilege for non-root user */
- if (ucred->mu_fsuid)
- ucred->mu_cap = pud->pud_cap & ~CAP_FS_MASK;
- else
- ucred->mu_cap = pud->pud_cap;
-
- /*
- * NB: remote client not allowed to setgroups anyway.
- */
- if (!med->med_rmtclient && pud->pud_ngroups &&
- (setxid_perm & LUSTRE_SETGRP_PERM)) {
- struct group_info *ginfo;
-
- /* setgroups for local client */
- ginfo = groups_alloc(pud->pud_ngroups);
- if (!ginfo) {
- CERROR("failed to alloc %d groups\n",
- pud->pud_ngroups);
- GOTO(out, rc = -ENOMEM);
- }
- groups_from_list(ginfo, pud->pud_groups);
- groups_sort(ginfo);
- ucred->mu_ginfo = ginfo;
- } else {
- ucred->mu_ginfo = NULL;
- }
-
- ucred->mu_identity = identity;
- ucred->mu_valid = UCRED_NEW;
-
EXIT;
out:
- if (rc && identity)
- mdt_identity_put(mdt->mdt_identity_cache, identity);
-
+ mdt_identity_put(mdt->mdt_identity_cache, identity);
return rc;
}
-int mdt_check_ucred(struct mdt_thread_info *info)
+static int old_init_ucred(struct mdt_thread_info *info,
+ struct mdt_body *body)
{
- struct ptlrpc_request *req = mdt_info_req(info);
- struct mdt_export_data *med = mdt_req2med(req);
- struct mdt_device *mdt = info->mti_mdt;
- struct ptlrpc_user_desc *pud = req->rq_user_desc;
- struct md_ucred *ucred = mdt_ucred(info);
- struct mdt_identity *identity;
- lnet_nid_t peernid = req->rq_peer.nid;
-
- ENTRY;
-
- if ((ucred->mu_valid == UCRED_OLD) || (ucred->mu_valid == UCRED_NEW))
- RETURN(0);
-
- if (!req->rq_user_desc)
- RETURN(0);
-
- /* sanity check: if we use strong authentication, we expect the
- * uid which client claimed is true */
- if (req->rq_auth_gss) {
- if (med->med_rmtclient) {
- if (req->rq_auth_mapped_uid == INVALID_UID) {
- CWARN("remote user not mapped, deny access!\n");
- RETURN(-EACCES);
- }
-
- if (ptlrpc_user_desc_do_idmap(req, pud))
- RETURN(-EACCES);
-
- if (req->rq_auth_mapped_uid != pud->pud_uid) {
- CERROR("remote client "LPU64": auth uid %u "
- "while client claim %u:%u/%u:%u\n",
- peernid, req->rq_auth_uid, pud->pud_uid,
- pud->pud_gid, pud->pud_fsuid,
- pud->pud_fsgid);
- RETURN(-EACCES);
- }
- } else {
- if (req->rq_auth_uid != pud->pud_uid) {
- CERROR("local client "LPU64": auth uid %u "
- "while client claim %u:%u/%u:%u\n",
- peernid, req->rq_auth_uid, pud->pud_uid,
- pud->pud_gid, pud->pud_fsuid,
- pud->pud_fsgid);
- RETURN(-EACCES);
- }
- }
- }
-
- if (is_identity_get_disabled(mdt->mdt_identity_cache)) {
- if (med->med_rmtclient) {
- CERROR("remote client must run with "
- "identity_get enabled!\n");
- RETURN(-EACCES);
- }
- } else {
- identity = mdt_identity_get(mdt->mdt_identity_cache,
- pud->pud_uid);
- if (!identity) {
- CERROR("Deny access without identity: uid %d\n",
- pud->pud_uid);
- RETURN(-EACCES);
- }
-
- mdt_identity_put(mdt->mdt_identity_cache, identity);
- }
+ struct lu_ucred *uc = mdt_ucred(info);
+ struct mdt_device *mdt = info->mti_mdt;
+ struct md_identity *identity = NULL;
+
+ ENTRY;
+
+ LASSERT(uc != NULL);
+ uc->uc_valid = UCRED_INVALID;
+ uc->uc_o_uid = uc->uc_uid = body->uid;
+ uc->uc_o_gid = uc->uc_gid = body->gid;
+ uc->uc_o_fsuid = uc->uc_fsuid = body->fsuid;
+ uc->uc_o_fsgid = uc->uc_fsgid = body->fsgid;
+ uc->uc_suppgids[0] = body->suppgid;
+ uc->uc_suppgids[1] = -1;
+ uc->uc_ginfo = NULL;
+ if (!is_identity_get_disabled(mdt->mdt_identity_cache)) {
+ identity = mdt_identity_get(mdt->mdt_identity_cache,
+ uc->uc_fsuid);
+ if (IS_ERR(identity)) {
+ if (unlikely(PTR_ERR(identity) == -EREMCHG)) {
+ identity = NULL;
+ } else {
+ CDEBUG(D_SEC, "Deny access without identity: "
+ "uid %u\n", uc->uc_fsuid);
+ RETURN(-EACCES);
+ }
+ }
+ }
+ uc->uc_identity = identity;
+
+ /* process root_squash here. */
+ mdt_root_squash(info, mdt_info_req(info)->rq_peer.nid);
+
+ /* remove fs privilege for non-root user. */
+ if (uc->uc_fsuid)
+ uc->uc_cap = body->capability & ~CFS_CAP_FS_MASK;
+ else
+ uc->uc_cap = body->capability;
+ uc->uc_valid = UCRED_OLD;
+
+ RETURN(0);
+}
- RETURN(0);
+static int old_init_ucred_reint(struct mdt_thread_info *info)
+{
+ struct lu_ucred *uc = mdt_ucred(info);
+ struct mdt_device *mdt = info->mti_mdt;
+ struct md_identity *identity = NULL;
+
+ ENTRY;
+
+ LASSERT(uc != NULL);
+ uc->uc_valid = UCRED_INVALID;
+ uc->uc_o_uid = uc->uc_o_fsuid = uc->uc_uid = uc->uc_fsuid;
+ uc->uc_o_gid = uc->uc_o_fsgid = uc->uc_gid = uc->uc_fsgid;
+ uc->uc_ginfo = NULL;
+ if (!is_identity_get_disabled(mdt->mdt_identity_cache)) {
+ identity = mdt_identity_get(mdt->mdt_identity_cache,
+ uc->uc_fsuid);
+ if (IS_ERR(identity)) {
+ if (unlikely(PTR_ERR(identity) == -EREMCHG)) {
+ identity = NULL;
+ } else {
+ CDEBUG(D_SEC, "Deny access without identity: "
+ "uid %u\n", uc->uc_fsuid);
+ RETURN(-EACCES);
+ }
+ }
+ }
+ uc->uc_identity = identity;
+
+ /* process root_squash here. */
+ mdt_root_squash(info, mdt_info_req(info)->rq_peer.nid);
+
+ /* remove fs privilege for non-root user. */
+ if (uc->uc_fsuid)
+ uc->uc_cap &= ~CFS_CAP_FS_MASK;
+ uc->uc_valid = UCRED_OLD;
+
+ RETURN(0);
}
int mdt_init_ucred(struct mdt_thread_info *info, struct mdt_body *body)
{
struct ptlrpc_request *req = mdt_info_req(info);
- struct md_ucred *uc = mdt_ucred(info);
+ struct lu_ucred *uc = mdt_ucred(info);
- if ((uc->mu_valid == UCRED_OLD) || (uc->mu_valid == UCRED_NEW))
- return 0;
+ LASSERT(uc != NULL);
+ if ((uc->uc_valid == UCRED_OLD) || (uc->uc_valid == UCRED_NEW))
+ return 0;
mdt_exit_ucred(info);
int mdt_init_ucred_reint(struct mdt_thread_info *info)
{
struct ptlrpc_request *req = mdt_info_req(info);
- struct md_ucred *uc = mdt_ucred(info);
+ struct lu_ucred *uc = mdt_ucred(info);
- if ((uc->mu_valid == UCRED_OLD) || (uc->mu_valid == UCRED_NEW))
- return 0;
+ LASSERT(uc != NULL);
+ if ((uc->uc_valid == UCRED_OLD) || (uc->uc_valid == UCRED_NEW))
+ return 0;
mdt_exit_ucred(info);
}
/* copied from lov/lov_ea.c, just for debugging, will be removed later */
-void mdt_dump_lmm(int level, const struct lov_mds_md *lmm)
+void mdt_dump_lmm(int level, const struct lov_mds_md *lmm, __u64 valid)
{
- const struct lov_ost_data_v1 *lod;
- int i;
- __s16 stripe_count =
- le16_to_cpu(((struct lov_user_md*)lmm)->lmm_stripe_count);
-
- CDEBUG(level, "objid "LPX64", magic 0x%08X, pattern %#X\n",
- le64_to_cpu(lmm->lmm_object_id), le32_to_cpu(lmm->lmm_magic),
- le32_to_cpu(lmm->lmm_pattern));
- CDEBUG(level,"stripe_size=0x%x, stripe_count=0x%x\n",
- le32_to_cpu(lmm->lmm_stripe_size),
- le32_to_cpu(lmm->lmm_stripe_count));
- LASSERT(stripe_count <= (__s16)LOV_MAX_STRIPE_COUNT);
- for (i = 0, lod = lmm->lmm_objects; i < stripe_count; i++, lod++) {
- CDEBUG(level, "stripe %u idx %u subobj "LPX64"/"LPX64"\n",
- i, le32_to_cpu(lod->l_ost_idx),
- le64_to_cpu(lod->l_object_gr),
- le64_to_cpu(lod->l_object_id));
- }
+ const struct lov_ost_data_v1 *lod;
+ int i;
+ __u16 count;
+
+ if (likely(!cfs_cdebug_show(level, DEBUG_SUBSYSTEM)))
+ return;
+
+ count = le16_to_cpu(((struct lov_user_md *)lmm)->lmm_stripe_count);
+
+ CDEBUG(level, "objid "DOSTID", magic 0x%08X, pattern %#X\n",
+ POSTID(&lmm->lmm_oi), le32_to_cpu(lmm->lmm_magic),
+ le32_to_cpu(lmm->lmm_pattern));
+ CDEBUG(level, "stripe_size=0x%x, stripe_count=0x%x\n",
+ le32_to_cpu(lmm->lmm_stripe_size), count);
+
+ /* If it's a directory or a released file, then there are
+ * no actual objects to print, so bail out. */
+ if (valid & OBD_MD_FLDIREA ||
+ le32_to_cpu(lmm->lmm_pattern) & LOV_PATTERN_F_RELEASED)
+ return;
+
+ LASSERT(count <= LOV_MAX_STRIPE_COUNT);
+ for (i = 0, lod = lmm->lmm_objects; i < count; i++, lod++) {
+ struct ost_id oi;
+
+ ostid_le_to_cpu(&lod->l_ost_oi, &oi);
+ CDEBUG(level, "stripe %u idx %u subobj "DOSTID"\n",
+ i, le32_to_cpu(lod->l_ost_idx), POSTID(&oi));
+ }
}
-void mdt_shrink_reply(struct mdt_thread_info *info)
+void mdt_dump_lmv(unsigned int level, const union lmv_mds_md *lmv)
{
- struct req_capsule *pill = &info->mti_pill;
- struct mdt_body *body;
- int acl_size, md_size, adjust = 0;
+ const struct lmv_mds_md_v1 *lmm1;
+ int i;
+
+ if (likely(!cfs_cdebug_show(level, DEBUG_SUBSYSTEM)))
+ return;
+
+ lmm1 = &lmv->lmv_md_v1;
+ CDEBUG(level, "magic 0x%08X, master %#X stripe_count %#x\n",
+ le32_to_cpu(lmm1->lmv_magic),
+ le32_to_cpu(lmm1->lmv_master_mdt_index),
+ le32_to_cpu(lmm1->lmv_stripe_count));
+
+ if (le32_to_cpu(lmm1->lmv_magic) == LMV_MAGIC_STRIPE)
+ return;
+
+ for (i = 0; i < le32_to_cpu(lmm1->lmv_stripe_count); i++) {
+ struct lu_fid fid;
+
+ fid_le_to_cpu(&fid, &lmm1->lmv_stripe_fids[i]);
+ CDEBUG(level, "idx %u subobj "DFID"\n", i, PFID(&fid));
+ }
+}
+
+/* Shrink and/or grow reply buffers */
+int mdt_fix_reply(struct mdt_thread_info *info)
+{
+ struct req_capsule *pill = info->mti_pill;
+ struct mdt_body *body;
+ int md_size, md_packed = 0;
+ int acl_size;
+ int rc = 0;
ENTRY;
body = req_capsule_server_get(pill, &RMF_MDT_BODY);
acl_size = body->aclsize;
- CDEBUG(D_INFO, "Shrink to md_size = %d cookie/acl_size = %d"
- " MDSCAPA = %d, OSSCAPA = %d\n",
+ /* this replay - not send info to client */
+ if (info->mti_spec.no_create) {
+ md_size = 0;
+ acl_size = 0;
+ }
+
+ CDEBUG(D_INFO, "Shrink to md_size = %d cookie/acl_size = %d"
+ " MDSCAPA = %llx, OSSCAPA = %llx\n",
md_size, acl_size,
- (int)(body->valid & OBD_MD_FLMDSCAPA),
- (int)(body->valid & OBD_MD_FLOSSCAPA));
+ (unsigned long long)(body->valid & OBD_MD_FLMDSCAPA),
+ (unsigned long long)(body->valid & OBD_MD_FLOSSCAPA));
/*
&RMF_MDT_BODY,
&RMF_MDT_MD,
(optional) &RMF_CAPA2,
(optional) something else
*/
- adjust += req_capsule_shrink(pill, &RMF_MDT_MD,
- md_size, adjust, 1);
+
+ /* MDT_MD buffer may be bigger than packed value, let's shrink all
+ * buffers before growing it */
+ if (info->mti_big_lmm_used) {
+ /* big_lmm buffer may be used even without packing the result
+ * into reply, just for internal server needs */
+ if (req_capsule_has_field(pill, &RMF_MDT_MD, RCL_SERVER))
+ md_packed = req_capsule_get_size(pill, &RMF_MDT_MD,
+ RCL_SERVER);
+
+ /* free big lmm if md_size is not needed */
+ if (md_size == 0 || md_packed == 0) {
+ info->mti_big_lmm_used = 0;
+ } else {
+ /* buffer must be allocated separately */
+ LASSERT(info->mti_attr.ma_lmm !=
+ req_capsule_server_get(pill, &RMF_MDT_MD));
+ req_capsule_shrink(pill, &RMF_MDT_MD, 0, RCL_SERVER);
+ }
+ } else if (req_capsule_has_field(pill, &RMF_MDT_MD, RCL_SERVER)) {
+ req_capsule_shrink(pill, &RMF_MDT_MD, md_size, RCL_SERVER);
+ }
if (req_capsule_has_field(pill, &RMF_ACL, RCL_SERVER))
- adjust += req_capsule_shrink(pill, &RMF_ACL,
- acl_size, adjust, 1);
+ req_capsule_shrink(pill, &RMF_ACL, acl_size, RCL_SERVER);
else if (req_capsule_has_field(pill, &RMF_LOGCOOKIES, RCL_SERVER))
- adjust += req_capsule_shrink(pill, &RMF_LOGCOOKIES,
- acl_size, adjust, 1);
-
- /* RMF_CAPA1 on server-side maybe for OBD_MD_FLMDSCAPA or
- * OBD_MD_FLOSSCAPA. If RMF_CAPA2 exist also, RMF_CAPA1 is
- * for OBD_MD_FLMDSCAPA only. */
- if (req_capsule_has_field(pill, &RMF_CAPA1, RCL_SERVER)) {
- if ((req_capsule_has_field(pill, &RMF_CAPA2, RCL_SERVER) &&
- !(body->valid & OBD_MD_FLMDSCAPA)) ||
- (!req_capsule_has_field(pill, &RMF_CAPA2, RCL_SERVER) &&
- !(body->valid & OBD_MD_FLMDSCAPA) &&
- !(body->valid & OBD_MD_FLOSSCAPA)))
- adjust += req_capsule_shrink(pill, &RMF_CAPA1,
- 0, adjust, 1);
- }
+ req_capsule_shrink(pill, &RMF_LOGCOOKIES,
+ acl_size, RCL_SERVER);
- /* RMF_CAPA2 on server-side is for OBD_MD_FLOSSCAPA only. */
- if ((req_capsule_has_field(pill, &RMF_CAPA2, RCL_SERVER) &&
- !(body->valid & OBD_MD_FLOSSCAPA)))
- adjust += req_capsule_shrink(pill, &RMF_CAPA2, 0, adjust, 0);
+ if (req_capsule_has_field(pill, &RMF_CAPA1, RCL_SERVER) &&
+ !(body->valid & OBD_MD_FLMDSCAPA))
+ req_capsule_shrink(pill, &RMF_CAPA1, 0, RCL_SERVER);
+
+ if (req_capsule_has_field(pill, &RMF_CAPA2, RCL_SERVER) &&
+ !(body->valid & OBD_MD_FLOSSCAPA))
+ req_capsule_shrink(pill, &RMF_CAPA2, 0, RCL_SERVER);
/*
* Some more field should be shrinked if needed.
* This should be done by those who added fields to reply message.
*/
- EXIT;
+
+ /* Grow MD buffer if needed finally */
+ if (info->mti_big_lmm_used) {
+ void *lmm;
+
+ LASSERT(md_size > md_packed);
+ CDEBUG(D_INFO, "Enlarge reply buffer, need extra %d bytes\n",
+ md_size - md_packed);
+ rc = req_capsule_server_grow(pill, &RMF_MDT_MD, md_size);
+ if (rc) {
+ /* we can't answer with proper LOV EA, drop flags,
+ * the rc is also returned so this request is
+ * considered as failed */
+ body->valid &= ~(OBD_MD_FLDIREA | OBD_MD_FLEASIZE);
+ /* don't return transno along with error */
+ lustre_msg_set_transno(pill->rc_req->rq_repmsg, 0);
+ } else {
+ /* now we need to pack right LOV/LMV EA */
+ lmm = req_capsule_server_get(pill, &RMF_MDT_MD);
+ if (info->mti_attr.ma_valid & MA_LOV) {
+ LASSERT(req_capsule_get_size(pill, &RMF_MDT_MD,
+ RCL_SERVER) ==
+ info->mti_attr.ma_lmm_size);
+ memcpy(lmm, info->mti_attr.ma_lmm,
+ info->mti_attr.ma_lmm_size);
+ } else if (info->mti_attr.ma_valid & MA_LMV) {
+ LASSERT(req_capsule_get_size(pill, &RMF_MDT_MD,
+ RCL_SERVER) ==
+ info->mti_attr.ma_lmv_size);
+ memcpy(lmm, info->mti_attr.ma_lmv,
+ info->mti_attr.ma_lmv_size);
+ }
+ }
+ /* update mdt_max_mdsize so clients will be aware about that */
+ if (info->mti_mdt->mdt_max_mdsize < info->mti_attr.ma_lmm_size)
+ info->mti_mdt->mdt_max_mdsize =
+ info->mti_attr.ma_lmm_size;
+ info->mti_big_lmm_used = 0;
+ }
+ RETURN(rc);
}
{
struct mdt_body *repbody;
const struct lu_attr *la = &ma->ma_attr;
+ int rc;
ENTRY;
- repbody = req_capsule_server_get(&info->mti_pill, &RMF_MDT_BODY);
+ repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
LASSERT(repbody != NULL);
if (ma->ma_valid & MA_INODE)
mdt_pack_attr2body(info, repbody, la, mdt_object_fid(mo));
if (ma->ma_valid & MA_LOV) {
- __u32 mode;
-
- if (mdt_object_exists(mo) < 0)
- /* If it is a remote object, and we do not retrieve
- * EA back unlink reg file*/
- mode = S_IFREG;
- else
- mode = lu_object_attr(&mo->mot_obj.mo_lu);
-
- LASSERT(ma->ma_lmm_size);
- mdt_dump_lmm(D_INFO, ma->ma_lmm);
- repbody->eadatasize = ma->ma_lmm_size;
- if (S_ISREG(mode))
- repbody->valid |= OBD_MD_FLEASIZE;
- else if (S_ISDIR(mode))
- repbody->valid |= OBD_MD_FLDIREA;
- else
- LBUG();
+ CERROR("No need in LOV EA upon unlink\n");
+ dump_stack();
}
+ repbody->eadatasize = 0;
+
+ if (info->mti_mdt->mdt_lut.lut_oss_capa &&
+ exp_connect_flags(info->mti_exp) & OBD_CONNECT_OSS_CAPA &&
+ repbody->valid & OBD_MD_FLEASIZE) {
+ struct lustre_capa *capa;
- if (ma->ma_cookie_size && (ma->ma_valid & MA_COOKIE)) {
- repbody->aclsize = ma->ma_cookie_size;
- repbody->valid |= OBD_MD_FLCOOKIE;
+ capa = req_capsule_server_get(info->mti_pill, &RMF_CAPA2);
+ LASSERT(capa);
+ capa->lc_opc = CAPA_OPC_OSS_DESTROY;
+ rc = mo_capa_get(info->mti_env, mdt_object_child(mo), capa, 0);
+ if (rc)
+ RETURN(rc);
+
+ repbody->valid |= OBD_MD_FLOSSCAPA;
}
RETURN(0);
}
-static inline unsigned int attr_unpack(__u64 sa_valid) {
- unsigned int ia_valid = 0;
-
- if (sa_valid & MDS_ATTR_MODE)
- ia_valid |= ATTR_MODE;
- if (sa_valid & MDS_ATTR_UID)
- ia_valid |= ATTR_UID;
- if (sa_valid & MDS_ATTR_GID)
- ia_valid |= ATTR_GID;
- if (sa_valid & MDS_ATTR_SIZE)
- ia_valid |= ATTR_SIZE;
- if (sa_valid & MDS_ATTR_ATIME)
- ia_valid |= ATTR_ATIME;
- if (sa_valid & MDS_ATTR_MTIME)
- ia_valid |= ATTR_MTIME;
- if (sa_valid & MDS_ATTR_CTIME)
- ia_valid |= ATTR_CTIME;
- if (sa_valid & MDS_ATTR_ATIME_SET)
- ia_valid |= ATTR_ATIME_SET;
- if (sa_valid & MDS_ATTR_MTIME_SET)
- ia_valid |= ATTR_MTIME_SET;
- if (sa_valid & MDS_ATTR_FORCE)
- ia_valid |= ATTR_FORCE;
- if (sa_valid & MDS_ATTR_ATTR_FLAG)
- ia_valid |= ATTR_ATTR_FLAG;
- if (sa_valid & MDS_ATTR_KILL_SUID)
- ia_valid |= ATTR_KILL_SUID;
- if (sa_valid & MDS_ATTR_KILL_SGID)
- ia_valid |= ATTR_KILL_SGID;
- if (sa_valid & MDS_ATTR_CTIME_SET)
- ia_valid |= ATTR_CTIME_SET;
- if (sa_valid & MDS_ATTR_FROM_OPEN)
- ia_valid |= ATTR_FROM_OPEN;
- if (sa_valid & MDS_ATTR_BLOCKS)
- ia_valid |= ATTR_BLOCKS;
- if (sa_valid & MDS_OPEN_OWNEROVERRIDE)
- ia_valid |= MDS_OPEN_OWNEROVERRIDE;
- return ia_valid;
-}
-
static __u64 mdt_attr_valid_xlate(__u64 in, struct mdt_reint_record *rr,
struct md_attr *ma)
{
- __u64 out;
-
- out = 0;
- if (in & ATTR_MODE)
- out |= LA_MODE;
- if (in & ATTR_UID)
- out |= LA_UID;
- if (in & ATTR_GID)
- out |= LA_GID;
- if (in & ATTR_SIZE)
- out |= LA_SIZE;
- if (in & ATTR_BLOCKS)
- out |= LA_BLOCKS;
-
- if (in & ATTR_FROM_OPEN)
- rr->rr_flags |= MRF_SETATTR_LOCKED;
-
- if (in & ATTR_ATIME_SET)
- out |= LA_ATIME;
-
- if (in & ATTR_CTIME_SET)
- out |= LA_CTIME;
-
- if (in & ATTR_MTIME_SET)
- out |= LA_MTIME;
-
- if (in & ATTR_ATTR_FLAG)
- out |= LA_FLAGS;
-
- if (in & MDS_OPEN_OWNEROVERRIDE)
- out |= MDS_OPEN_OWNEROVERRIDE;
-
- /*XXX need ATTR_RAW?*/
- in &= ~(ATTR_MODE|ATTR_UID|ATTR_GID|ATTR_SIZE|ATTR_BLOCKS|
- ATTR_ATIME|ATTR_MTIME|ATTR_CTIME|ATTR_FROM_OPEN|
- ATTR_ATIME_SET|ATTR_CTIME_SET|ATTR_MTIME_SET|
- ATTR_ATTR_FLAG|ATTR_RAW|MDS_OPEN_OWNEROVERRIDE);
- if (in != 0)
- CERROR("Unknown attr bits: %#llx\n", in);
- return out;
+ __u64 out;
+
+ out = 0;
+ if (in & MDS_ATTR_MODE)
+ out |= LA_MODE;
+ if (in & MDS_ATTR_UID)
+ out |= LA_UID;
+ if (in & MDS_ATTR_GID)
+ out |= LA_GID;
+ if (in & MDS_ATTR_SIZE)
+ out |= LA_SIZE;
+ if (in & MDS_ATTR_BLOCKS)
+ out |= LA_BLOCKS;
+ if (in & MDS_ATTR_ATIME_SET)
+ out |= LA_ATIME;
+ if (in & MDS_ATTR_CTIME_SET)
+ out |= LA_CTIME;
+ if (in & MDS_ATTR_MTIME_SET)
+ out |= LA_MTIME;
+ if (in & MDS_ATTR_ATTR_FLAG)
+ out |= LA_FLAGS;
+ if (in & MDS_ATTR_KILL_SUID)
+ out |= LA_KILL_SUID;
+ if (in & MDS_ATTR_KILL_SGID)
+ out |= LA_KILL_SGID;
+
+ if (in & MDS_ATTR_FROM_OPEN)
+ rr->rr_flags |= MRF_OPEN_TRUNC;
+ if (in & MDS_OPEN_OWNEROVERRIDE)
+ ma->ma_attr_flags |= MDS_OWNEROVERRIDE;
+ if (in & MDS_ATTR_FORCE)
+ ma->ma_attr_flags |= MDS_PERM_BYPASS;
+
+ in &= ~(MDS_ATTR_MODE | MDS_ATTR_UID | MDS_ATTR_GID |
+ MDS_ATTR_ATIME | MDS_ATTR_MTIME | MDS_ATTR_CTIME |
+ MDS_ATTR_ATIME_SET | MDS_ATTR_CTIME_SET | MDS_ATTR_MTIME_SET |
+ MDS_ATTR_SIZE | MDS_ATTR_BLOCKS | MDS_ATTR_ATTR_FLAG |
+ MDS_ATTR_FORCE | MDS_ATTR_KILL_SUID | MDS_ATTR_KILL_SGID |
+ MDS_ATTR_FROM_OPEN | MDS_OPEN_OWNEROVERRIDE);
+ if (in != 0)
+ CERROR("Unknown attr bits: "LPX64"\n", in);
+ return out;
}
+
+void mdt_set_capainfo(struct mdt_thread_info *info, int offset,
+ const struct lu_fid *fid, struct lustre_capa *capa)
+{
+ struct lu_capainfo *lci;
+
+ LASSERT(offset >= 0 && offset < LU_CAPAINFO_MAX);
+ if (!info->mti_mdt->mdt_lut.lut_mds_capa ||
+ !(exp_connect_flags(info->mti_exp) & OBD_CONNECT_MDS_CAPA))
+ return;
+
+ lci = lu_capainfo_get(info->mti_env);
+ LASSERT(lci);
+ lci->lci_fid[offset] = *fid;
+ lci->lci_capa[offset] = capa;
+}
+
+#ifdef DEBUG_CAPA
+void mdt_dump_capainfo(struct mdt_thread_info *info)
+{
+ struct lu_capainfo *lci = lu_capainfo_get(info->mti_env);
+ int i;
+
+ if (lci == NULL)
+ return;
+
+ for (i = 0; i < LU_CAPAINFO_MAX; i++) {
+ if (lci->lci_capa[i] == NULL) {
+ CERROR("no capa for index %d "DFID"\n",
+ i, PFID(&lci->lci_fid[i]));
+ continue;
+ }
+ if (lci->lci_capa[i] == BYPASS_CAPA) {
+ CERROR("bypass for index %d "DFID"\n",
+ i, PFID(&lci->lci_fid[i]));
+ continue;
+ }
+ DEBUG_CAPA(D_ERROR, lci->lci_capa[i], "index %d", i);
+ }
+}
+#endif /* DEBUG_CAPA */
+
/* unpacking */
+int mdt_name_unpack(struct req_capsule *pill,
+ const struct req_msg_field *field,
+ struct lu_name *ln,
+ enum mdt_name_flags flags)
+{
+ ln->ln_name = req_capsule_client_get(pill, field);
+ ln->ln_namelen = req_capsule_get_size(pill, field, RCL_CLIENT) - 1;
+
+ if (!lu_name_is_valid(ln)) {
+ ln->ln_name = NULL;
+ ln->ln_namelen = 0;
+
+ return -EPROTO;
+ }
+
+ if ((flags & MNF_FIX_ANON) &&
+ ln->ln_namelen == 1 && ln->ln_name[0] == '/') {
+ /* Newer (3.x) kernels use a name of "/" for the
+ * "anonymous" disconnected dentries from NFS
+ * filehandle conversion. See d_obtain_alias(). */
+ ln->ln_name = NULL;
+ ln->ln_namelen = 0;
+ }
+
+ return 0;
+}
+
static int mdt_setattr_unpack_rec(struct mdt_thread_info *info)
{
- struct md_ucred *uc = mdt_ucred(info);
+ struct lu_ucred *uc = mdt_ucred(info);
struct md_attr *ma = &info->mti_attr;
struct lu_attr *la = &ma->ma_attr;
- struct req_capsule *pill = &info->mti_pill;
+ struct req_capsule *pill = info->mti_pill;
struct mdt_reint_record *rr = &info->mti_rr;
struct mdt_rec_setattr *rec;
ENTRY;
- rec = req_capsule_client_get(pill, &RMF_REC_SETATTR);
+ CLASSERT(sizeof(struct mdt_rec_setattr)== sizeof(struct mdt_rec_reint));
+ rec = req_capsule_client_get(pill, &RMF_REC_REINT);
if (rec == NULL)
RETURN(-EFAULT);
- uc->mu_fsuid = rec->sa_fsuid;
- uc->mu_fsgid = rec->sa_fsgid;
- uc->mu_cap = rec->sa_cap;
- uc->mu_suppgids[0] = rec->sa_suppgid;
- uc->mu_suppgids[1] = -1;
+ /* This prior initialization is needed for old_init_ucred_reint() */
+ uc->uc_fsuid = rec->sa_fsuid;
+ uc->uc_fsgid = rec->sa_fsgid;
+ uc->uc_cap = rec->sa_cap;
+ uc->uc_suppgids[0] = rec->sa_suppgid;
+ uc->uc_suppgids[1] = -1;
rr->rr_fid1 = &rec->sa_fid;
- la->la_valid = mdt_attr_valid_xlate(attr_unpack(rec->sa_valid), rr, ma);
+ la->la_valid = mdt_attr_valid_xlate(rec->sa_valid, rr, ma);
+ /* If MDS_ATTR_xTIME is set without MDS_ATTR_xTIME_SET and
+ * the client does not have OBD_CONNECT_FULL20, convert it
+ * to LA_xTIME. LU-3036 */
+ if (!(exp_connect_flags(info->mti_exp) & OBD_CONNECT_FULL20)) {
+ if (!(rec->sa_valid & MDS_ATTR_ATIME_SET) &&
+ (rec->sa_valid & MDS_ATTR_ATIME))
+ la->la_valid |= LA_ATIME;
+ if (!(rec->sa_valid & MDS_ATTR_MTIME_SET) &&
+ (rec->sa_valid & MDS_ATTR_MTIME))
+ la->la_valid |= LA_MTIME;
+ if (!(rec->sa_valid & MDS_ATTR_CTIME_SET) &&
+ (rec->sa_valid & MDS_ATTR_CTIME))
+ la->la_valid |= LA_CTIME;
+ }
la->la_mode = rec->sa_mode;
la->la_flags = rec->sa_attr_flags;
la->la_uid = rec->sa_uid;
la->la_mtime = rec->sa_mtime;
ma->ma_valid = MA_INODE;
- if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
- mdt_set_capainfo(info, 0, rr->rr_fid1,
- req_capsule_client_get(pill, &RMF_CAPA1));
+ if (rec->sa_bias & MDS_DATA_MODIFIED)
+ ma->ma_attr_flags |= MDS_DATA_MODIFIED;
+ else
+ ma->ma_attr_flags &= ~MDS_DATA_MODIFIED;
- RETURN(0);
+ if (rec->sa_bias & MDS_HSM_RELEASE)
+ ma->ma_attr_flags |= MDS_HSM_RELEASE;
+ else
+ ma->ma_attr_flags &= ~MDS_HSM_RELEASE;
+
+ if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
+ mdt_set_capainfo(info, 0, rr->rr_fid1,
+ req_capsule_client_get(pill, &RMF_CAPA1));
+
+ RETURN(0);
}
-static int mdt_epoch_unpack(struct mdt_thread_info *info)
+static int mdt_ioepoch_unpack(struct mdt_thread_info *info)
{
- struct req_capsule *pill = &info->mti_pill;
+ struct req_capsule *pill = info->mti_pill;
ENTRY;
if (req_capsule_get_size(pill, &RMF_MDT_EPOCH, RCL_CLIENT))
- info->mti_epoch = req_capsule_client_get(pill, &RMF_MDT_EPOCH);
+ info->mti_ioepoch =
+ req_capsule_client_get(pill, &RMF_MDT_EPOCH);
else
- info->mti_epoch = NULL;
- RETURN(info->mti_epoch == NULL ? -EFAULT : 0);
+ info->mti_ioepoch = NULL;
+ RETURN(info->mti_ioepoch == NULL ? -EFAULT : 0);
}
static inline int mdt_dlmreq_unpack(struct mdt_thread_info *info) {
- struct req_capsule *pill = &info->mti_pill;
+ struct req_capsule *pill = info->mti_pill;
if (req_capsule_get_size(pill, &RMF_DLM_REQ, RCL_CLIENT)) {
info->mti_dlm_req = req_capsule_client_get(pill, &RMF_DLM_REQ);
if (info->mti_dlm_req == NULL)
RETURN(-EFAULT);
}
-
+
RETURN(0);
}
static int mdt_setattr_unpack(struct mdt_thread_info *info)
{
+ struct mdt_reint_record *rr = &info->mti_rr;
struct md_attr *ma = &info->mti_attr;
- struct req_capsule *pill = &info->mti_pill;
+ struct req_capsule *pill = info->mti_pill;
int rc;
ENTRY;
RETURN(rc);
/* Epoch may be absent */
- mdt_epoch_unpack(info);
+ mdt_ioepoch_unpack(info);
+
+ if (req_capsule_field_present(pill, &RMF_EADATA, RCL_CLIENT)) {
+ rr->rr_eadata = req_capsule_client_get(pill, &RMF_EADATA);
+ rr->rr_eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
+ RCL_CLIENT);
+ if (rr->rr_eadatalen > 0) {
+ const struct lmv_user_md *lum;
+
+ lum = rr->rr_eadata;
+ /* Sigh ma_valid(from req) does not indicate whether
+ * it will set LOV/LMV EA, so we have to check magic */
+ if (le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC) {
+ ma->ma_valid |= MA_LMV;
+ ma->ma_lmv = (void *)rr->rr_eadata;
+ ma->ma_lmv_size = rr->rr_eadatalen;
+ } else {
+ ma->ma_valid |= MA_LOV;
+ ma->ma_lmm = (void *)rr->rr_eadata;
+ ma->ma_lmm_size = rr->rr_eadatalen;
+ }
+ }
+ }
+
+ rc = mdt_dlmreq_unpack(info);
+ RETURN(rc);
+}
- ma->ma_lmm_size = req_capsule_get_size(pill, &RMF_EADATA, RCL_CLIENT);
- if (ma->ma_lmm_size) {
- ma->ma_lmm = req_capsule_client_get(pill, &RMF_EADATA);
- ma->ma_valid |= MA_LOV;
- }
+static int mdt_hsm_release_unpack(struct mdt_thread_info *info)
+{
+ struct md_attr *ma = &info->mti_attr;
+ struct req_capsule *pill = info->mti_pill;
+ ENTRY;
- ma->ma_cookie_size = req_capsule_get_size(pill, &RMF_LOGCOOKIES,
- RCL_CLIENT);
- if (ma->ma_cookie_size) {
- ma->ma_cookie = req_capsule_client_get(pill, &RMF_LOGCOOKIES);
- ma->ma_valid |= MA_COOKIE;
- }
+ if (!(ma->ma_attr_flags & MDS_HSM_RELEASE))
+ RETURN(0);
- rc = mdt_dlmreq_unpack(info);
- RETURN(rc);
+ req_capsule_extend(pill, &RQF_MDS_RELEASE_CLOSE);
+
+ if (!(req_capsule_has_field(pill, &RMF_CLOSE_DATA, RCL_CLIENT) &&
+ req_capsule_field_present(pill, &RMF_CLOSE_DATA, RCL_CLIENT)))
+ RETURN(-EFAULT);
+
+ RETURN(0);
}
int mdt_close_unpack(struct mdt_thread_info *info)
int rc;
ENTRY;
- rc = mdt_epoch_unpack(info);
+ rc = mdt_ioepoch_unpack(info);
if (rc)
RETURN(rc);
- RETURN(mdt_setattr_unpack_rec(info));
+ rc = mdt_setattr_unpack_rec(info);
+ if (rc)
+ RETURN(rc);
+
+ rc = mdt_hsm_release_unpack(info);
+ if (rc)
+ RETURN(rc);
+
+ RETURN(mdt_init_ucred_reint(info));
}
static int mdt_create_unpack(struct mdt_thread_info *info)
{
- struct md_ucred *uc = mdt_ucred(info);
+ struct lu_ucred *uc = mdt_ucred(info);
struct mdt_rec_create *rec;
struct lu_attr *attr = &info->mti_attr.ma_attr;
struct mdt_reint_record *rr = &info->mti_rr;
- struct req_capsule *pill = &info->mti_pill;
+ struct req_capsule *pill = info->mti_pill;
struct md_op_spec *sp = &info->mti_spec;
int rc;
ENTRY;
- rec = req_capsule_client_get(pill, &RMF_REC_CREATE);
+ CLASSERT(sizeof(struct mdt_rec_create) == sizeof(struct mdt_rec_reint));
+ rec = req_capsule_client_get(pill, &RMF_REC_REINT);
if (rec == NULL)
RETURN(-EFAULT);
- uc->mu_fsuid = rec->cr_fsuid;
- uc->mu_fsgid = rec->cr_fsgid;
- uc->mu_cap = rec->cr_cap;
- uc->mu_suppgids[0] = rec->cr_suppgid1;
- uc->mu_suppgids[1] = -1;
+ /* This prior initialization is needed for old_init_ucred_reint() */
+ uc->uc_fsuid = rec->cr_fsuid;
+ uc->uc_fsgid = rec->cr_fsgid;
+ uc->uc_cap = rec->cr_cap;
+ uc->uc_suppgids[0] = rec->cr_suppgid1;
+ uc->uc_suppgids[1] = -1;
+ uc->uc_umask = rec->cr_umask;
rr->rr_fid1 = &rec->cr_fid1;
rr->rr_fid2 = &rec->cr_fid2;
attr->la_ctime = rec->cr_time;
attr->la_mtime = rec->cr_time;
attr->la_atime = rec->cr_time;
- attr->la_valid = LA_MODE | LA_RDEV | LA_UID | LA_GID |
- LA_CTIME | LA_MTIME | LA_ATIME;
+ attr->la_valid = LA_MODE | LA_RDEV | LA_UID | LA_GID | LA_TYPE |
+ LA_CTIME | LA_MTIME | LA_ATIME;
memset(&sp->u, 0, sizeof(sp->u));
- sp->sp_cr_flags = rec->cr_flags;
- sp->sp_ck_split = !!(rec->cr_bias & MDS_CHECK_SPLIT);
- info->mti_cross_ref = !!(rec->cr_bias & MDS_CROSS_REF);
+ sp->sp_cr_flags = get_mrc_cr_flags(rec);
if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
mdt_set_capainfo(info, 0, rr->rr_fid1,
req_capsule_client_get(pill, &RMF_CAPA1));
mdt_set_capainfo(info, 1, rr->rr_fid2, BYPASS_CAPA);
- rr->rr_name = req_capsule_client_get(pill, &RMF_NAME);
- rr->rr_namelen = req_capsule_get_size(pill, &RMF_NAME, RCL_CLIENT) - 1;
- LASSERT(rr->rr_namelen > 0);
-
-#ifdef CONFIG_FS_POSIX_ACL
- if (sp->sp_cr_flags & MDS_CREATE_RMT_ACL) {
- if (S_ISDIR(attr->la_mode))
- sp->u.sp_pfid = rr->rr_fid1;
- req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_RMT_ACL);
- LASSERT(req_capsule_field_present(pill, &RMF_EADATA,
- RCL_CLIENT));
- sp->u.sp_ea.eadata = req_capsule_client_get(pill, &RMF_EADATA);
- sp->u.sp_ea.eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
- RCL_CLIENT);
- sp->u.sp_ea.fid = rr->rr_fid1;
- RETURN(0);
- }
-#endif
- if (S_ISDIR(attr->la_mode)) {
- /* pass parent fid for cross-ref cases */
- sp->u.sp_pfid = rr->rr_fid1;
- if (sp->sp_cr_flags & MDS_CREATE_SLAVE_OBJ) {
- /* create salve object req, need
- * unpack split ea here
- */
- req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_SLAVE);
- LASSERT(req_capsule_field_present(pill, &RMF_EADATA,
- RCL_CLIENT));
- sp->u.sp_ea.eadata = req_capsule_client_get(pill,
- &RMF_EADATA);
- sp->u.sp_ea.eadatalen = req_capsule_get_size(pill,
- &RMF_EADATA,
- RCL_CLIENT);
- sp->u.sp_ea.fid = rr->rr_fid1;
- RETURN(0);
- }
- req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_RMT_ACL);
- } else if (S_ISLNK(attr->la_mode)) {
+ rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
+ if (rc < 0)
+ RETURN(rc);
+
+ if (S_ISLNK(attr->la_mode)) {
const char *tgt = NULL;
req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_SYM);
RETURN(-EFAULT);
} else {
req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_RMT_ACL);
- }
- rc = mdt_dlmreq_unpack(info);
- RETURN(rc);
+ if (S_ISDIR(attr->la_mode) &&
+ req_capsule_get_size(pill, &RMF_EADATA, RCL_CLIENT) > 0) {
+ sp->u.sp_ea.eadata =
+ req_capsule_client_get(pill, &RMF_EADATA);
+ sp->u.sp_ea.eadatalen =
+ req_capsule_get_size(pill, &RMF_EADATA,
+ RCL_CLIENT);
+ sp->sp_cr_flags |= MDS_OPEN_HAS_EA;
+ }
+ }
+
+ rc = mdt_dlmreq_unpack(info);
+ RETURN(rc);
}
static int mdt_link_unpack(struct mdt_thread_info *info)
{
- struct md_ucred *uc = mdt_ucred(info);
+ struct lu_ucred *uc = mdt_ucred(info);
struct mdt_rec_link *rec;
struct lu_attr *attr = &info->mti_attr.ma_attr;
struct mdt_reint_record *rr = &info->mti_rr;
- struct req_capsule *pill = &info->mti_pill;
+ struct req_capsule *pill = info->mti_pill;
int rc;
ENTRY;
- rec = req_capsule_client_get(pill, &RMF_REC_LINK);
+ CLASSERT(sizeof(struct mdt_rec_link) == sizeof(struct mdt_rec_reint));
+ rec = req_capsule_client_get(pill, &RMF_REC_REINT);
if (rec == NULL)
RETURN(-EFAULT);
- uc->mu_fsuid = rec->lk_fsuid;
- uc->mu_fsgid = rec->lk_fsgid;
- uc->mu_cap = rec->lk_cap;
- uc->mu_suppgids[0] = rec->lk_suppgid1;
- uc->mu_suppgids[1] = rec->lk_suppgid2;
+ /* This prior initialization is needed for old_init_ucred_reint() */
+ uc->uc_fsuid = rec->lk_fsuid;
+ uc->uc_fsgid = rec->lk_fsgid;
+ uc->uc_cap = rec->lk_cap;
+ uc->uc_suppgids[0] = rec->lk_suppgid1;
+ uc->uc_suppgids[1] = rec->lk_suppgid2;
attr->la_uid = rec->lk_fsuid;
attr->la_gid = rec->lk_fsgid;
mdt_set_capainfo(info, 1, rr->rr_fid2,
req_capsule_client_get(pill, &RMF_CAPA2));
- rr->rr_name = req_capsule_client_get(pill, &RMF_NAME);
- if (rr->rr_name == NULL)
- RETURN(-EFAULT);
- rr->rr_namelen = req_capsule_get_size(pill, &RMF_NAME, RCL_CLIENT) - 1;
- LASSERT(rr->rr_namelen > 0);
- info->mti_spec.sp_ck_split = !!(rec->lk_bias & MDS_CHECK_SPLIT);
- info->mti_cross_ref = !!(rec->lk_bias & MDS_CROSS_REF);
+ rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
+ if (rc < 0)
+ RETURN(rc);
- rc = mdt_dlmreq_unpack(info);
- RETURN(rc);
+ rc = mdt_dlmreq_unpack(info);
+
+ RETURN(rc);
}
static int mdt_unlink_unpack(struct mdt_thread_info *info)
{
- struct md_ucred *uc = mdt_ucred(info);
+ struct lu_ucred *uc = mdt_ucred(info);
struct mdt_rec_unlink *rec;
struct md_attr *ma = &info->mti_attr;
struct lu_attr *attr = &info->mti_attr.ma_attr;
struct mdt_reint_record *rr = &info->mti_rr;
- struct req_capsule *pill = &info->mti_pill;
+ struct req_capsule *pill = info->mti_pill;
int rc;
ENTRY;
- rec = req_capsule_client_get(pill, &RMF_REC_UNLINK);
+ CLASSERT(sizeof(struct mdt_rec_unlink) == sizeof(struct mdt_rec_reint));
+ rec = req_capsule_client_get(pill, &RMF_REC_REINT);
if (rec == NULL)
RETURN(-EFAULT);
- uc->mu_fsuid = rec->ul_fsuid;
- uc->mu_fsgid = rec->ul_fsgid;
- uc->mu_cap = rec->ul_cap;
- uc->mu_suppgids[0] = rec->ul_suppgid;
- uc->mu_suppgids[1] = -1;
+ /* This prior initialization is needed for old_init_ucred_reint() */
+ uc->uc_fsuid = rec->ul_fsuid;
+ uc->uc_fsgid = rec->ul_fsgid;
+ uc->uc_cap = rec->ul_cap;
+ uc->uc_suppgids[0] = rec->ul_suppgid1;
+ uc->uc_suppgids[1] = -1;
attr->la_uid = rec->ul_fsuid;
attr->la_gid = rec->ul_fsgid;
mdt_set_capainfo(info, 0, rr->rr_fid1,
req_capsule_client_get(pill, &RMF_CAPA1));
- rr->rr_name = req_capsule_client_get(pill, &RMF_NAME);
- if (rr->rr_name == NULL)
- RETURN(-EFAULT);
- rr->rr_namelen = req_capsule_get_size(pill, &RMF_NAME, RCL_CLIENT) - 1;
- LASSERT(rr->rr_namelen > 0);
- info->mti_spec.sp_ck_split = !!(rec->ul_bias & MDS_CHECK_SPLIT);
- info->mti_cross_ref = !!(rec->ul_bias & MDS_CROSS_REF);
+ rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
+ if (rc < 0)
+ RETURN(rc);
+
if (rec->ul_bias & MDS_VTX_BYPASS)
ma->ma_attr_flags |= MDS_VTX_BYPASS;
else
ma->ma_attr_flags &= ~MDS_VTX_BYPASS;
+ info->mti_spec.no_create = !!req_is_replay(mdt_info_req(info));
+
rc = mdt_dlmreq_unpack(info);
RETURN(rc);
}
+static int mdt_rmentry_unpack(struct mdt_thread_info *info)
+{
+ info->mti_spec.sp_rm_entry = 1;
+ return mdt_unlink_unpack(info);
+}
+
static int mdt_rename_unpack(struct mdt_thread_info *info)
{
- struct md_ucred *uc = mdt_ucred(info);
+ struct lu_ucred *uc = mdt_ucred(info);
struct mdt_rec_rename *rec;
struct md_attr *ma = &info->mti_attr;
struct lu_attr *attr = &info->mti_attr.ma_attr;
struct mdt_reint_record *rr = &info->mti_rr;
- struct req_capsule *pill = &info->mti_pill;
+ struct req_capsule *pill = info->mti_pill;
int rc;
ENTRY;
- rec = req_capsule_client_get(pill, &RMF_REC_RENAME);
+ CLASSERT(sizeof(struct mdt_rec_rename) == sizeof(struct mdt_rec_reint));
+ rec = req_capsule_client_get(pill, &RMF_REC_REINT);
if (rec == NULL)
RETURN(-EFAULT);
- uc->mu_fsuid = rec->rn_fsuid;
- uc->mu_fsgid = rec->rn_fsgid;
- uc->mu_cap = rec->rn_cap;
- uc->mu_suppgids[0] = rec->rn_suppgid1;
- uc->mu_suppgids[1] = rec->rn_suppgid2;
+ /* This prior initialization is needed for old_init_ucred_reint() */
+ uc->uc_fsuid = rec->rn_fsuid;
+ uc->uc_fsgid = rec->rn_fsgid;
+ uc->uc_cap = rec->rn_cap;
+ uc->uc_suppgids[0] = rec->rn_suppgid1;
+ uc->uc_suppgids[1] = rec->rn_suppgid2;
attr->la_uid = rec->rn_fsuid;
attr->la_gid = rec->rn_fsgid;
mdt_set_capainfo(info, 1, rr->rr_fid2,
req_capsule_client_get(pill, &RMF_CAPA2));
- rr->rr_name = req_capsule_client_get(pill, &RMF_NAME);
- rr->rr_tgt = req_capsule_client_get(pill, &RMF_SYMTGT);
- if (rr->rr_name == NULL || rr->rr_tgt == NULL)
- RETURN(-EFAULT);
- rr->rr_namelen = req_capsule_get_size(pill, &RMF_NAME, RCL_CLIENT) - 1;
- LASSERT(rr->rr_namelen > 0);
- rr->rr_tgtlen = req_capsule_get_size(pill, &RMF_SYMTGT, RCL_CLIENT) - 1;
- LASSERT(rr->rr_tgtlen > 0);
- info->mti_spec.sp_ck_split = !!(rec->rn_bias & MDS_CHECK_SPLIT);
- info->mti_cross_ref = !!(rec->rn_bias & MDS_CROSS_REF);
+ rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
+ if (rc < 0)
+ RETURN(rc);
+
+ rc = mdt_name_unpack(pill, &RMF_SYMTGT, &rr->rr_tgt_name, 0);
+ if (rc < 0)
+ RETURN(rc);
+
if (rec->rn_bias & MDS_VTX_BYPASS)
ma->ma_attr_flags |= MDS_VTX_BYPASS;
else
ma->ma_attr_flags &= ~MDS_VTX_BYPASS;
- rc = mdt_dlmreq_unpack(info);
- RETURN(rc);
+ info->mti_spec.no_create = !!req_is_replay(mdt_info_req(info));
+
+
+ rc = mdt_dlmreq_unpack(info);
+
+ RETURN(rc);
+}
+
+/*
+ * please see comment above LOV_MAGIC_V1_DEF
+ */
+static void mdt_fix_lov_magic(struct mdt_thread_info *info)
+{
+ struct mdt_reint_record *rr = &info->mti_rr;
+ struct lov_user_md_v1 *v1;
+
+ v1 = (void *)rr->rr_eadata;
+ LASSERT(v1);
+
+ if (unlikely(req_is_replay(mdt_info_req(info)))) {
+ if (v1->lmm_magic == LOV_USER_MAGIC_V1) {
+ v1->lmm_magic = LOV_MAGIC_V1_DEF;
+ } else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V1)) {
+ v1->lmm_magic = __swab32(LOV_MAGIC_V1_DEF);
+ } else if (v1->lmm_magic == LOV_USER_MAGIC_V3) {
+ v1->lmm_magic = LOV_MAGIC_V3_DEF;
+ } else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V3)) {
+ v1->lmm_magic = __swab32(LOV_MAGIC_V3_DEF);
+ }
+ }
}
static int mdt_open_unpack(struct mdt_thread_info *info)
{
- struct md_ucred *uc = mdt_ucred(info);
+ struct lu_ucred *uc = mdt_ucred(info);
struct mdt_rec_create *rec;
struct lu_attr *attr = &info->mti_attr.ma_attr;
- struct req_capsule *pill = &info->mti_pill;
+ struct req_capsule *pill = info->mti_pill;
struct mdt_reint_record *rr = &info->mti_rr;
struct ptlrpc_request *req = mdt_info_req(info);
struct md_op_spec *sp = &info->mti_spec;
ENTRY;
- rec = req_capsule_client_get(pill, &RMF_REC_CREATE);
+ CLASSERT(sizeof(struct mdt_rec_create) == sizeof(struct mdt_rec_reint));
+ rec = req_capsule_client_get(pill, &RMF_REC_REINT);
if (rec == NULL)
RETURN(-EFAULT);
- uc->mu_fsuid = rec->cr_fsuid;
- uc->mu_fsgid = rec->cr_fsgid;
- uc->mu_cap = rec->cr_cap;
- uc->mu_suppgids[0] = rec->cr_suppgid1;
- uc->mu_suppgids[1] = rec->cr_suppgid2;
+ /* This prior initialization is needed for old_init_ucred_reint() */
+ uc->uc_fsuid = rec->cr_fsuid;
+ uc->uc_fsgid = rec->cr_fsgid;
+ uc->uc_cap = rec->cr_cap;
+ uc->uc_suppgids[0] = rec->cr_suppgid1;
+ uc->uc_suppgids[1] = rec->cr_suppgid2;
+ uc->uc_umask = rec->cr_umask;
rr->rr_fid1 = &rec->cr_fid1;
rr->rr_fid2 = &rec->cr_fid2;
attr->la_valid = LA_MODE | LA_RDEV | LA_UID | LA_GID |
LA_CTIME | LA_MTIME | LA_ATIME;
memset(&info->mti_spec.u, 0, sizeof(info->mti_spec.u));
- info->mti_spec.sp_cr_flags = rec->cr_flags;
+ info->mti_spec.sp_cr_flags = get_mrc_cr_flags(rec);
+ /* Do not trigger ASSERTION if client miss to set such flags. */
+ if (unlikely(info->mti_spec.sp_cr_flags == 0))
+ RETURN(-EPROTO);
info->mti_replayepoch = rec->cr_ioepoch;
- info->mti_spec.sp_ck_split = !!(rec->cr_bias & MDS_CHECK_SPLIT);
info->mti_cross_ref = !!(rec->cr_bias & MDS_CROSS_REF);
if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
mdt_set_capainfo(info, 0, rr->rr_fid1,
req_capsule_client_get(pill, &RMF_CAPA1));
- if ((lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY) &&
- (req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT))) {
+ if (req_is_replay(req) &&
+ req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT)) {
#if 0
mdt_set_capainfo(info, 1, rr->rr_fid2,
req_capsule_client_get(pill, &RMF_CAPA2));
#endif
}
- rr->rr_name = req_capsule_client_get(pill, &RMF_NAME);
- if (rr->rr_name == NULL)
+ mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, MNF_FIX_ANON);
+
+ if (req_capsule_field_present(pill, &RMF_EADATA, RCL_CLIENT)) {
+ rr->rr_eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
+ RCL_CLIENT);
+ if (rr->rr_eadatalen > 0) {
+ rr->rr_eadata = req_capsule_client_get(pill,
+ &RMF_EADATA);
+ sp->u.sp_ea.eadatalen = rr->rr_eadatalen;
+ sp->u.sp_ea.eadata = rr->rr_eadata;
+ sp->no_create = !!req_is_replay(req);
+ mdt_fix_lov_magic(info);
+ }
+
+ /*
+ * Client default md_size may be 0 right after client start,
+ * until all osc are connected, set here just some reasonable
+ * value to prevent misbehavior.
+ */
+ if (rr->rr_eadatalen == 0 &&
+ !(info->mti_spec.sp_cr_flags & MDS_OPEN_DELAY_CREATE))
+ rr->rr_eadatalen = MIN_MD_SIZE;
+ }
+
+ RETURN(0);
+}
+
+static int mdt_setxattr_unpack(struct mdt_thread_info *info)
+{
+ struct mdt_reint_record *rr = &info->mti_rr;
+ struct lu_ucred *uc = mdt_ucred(info);
+ struct lu_attr *attr = &info->mti_attr.ma_attr;
+ struct req_capsule *pill = info->mti_pill;
+ struct mdt_rec_setxattr *rec;
+ int rc;
+ ENTRY;
+
+
+ CLASSERT(sizeof(struct mdt_rec_setxattr) ==
+ sizeof(struct mdt_rec_reint));
+
+ rec = req_capsule_client_get(pill, &RMF_REC_REINT);
+ if (rec == NULL)
+ RETURN(-EFAULT);
+
+ /* This prior initialization is needed for old_init_ucred_reint() */
+ uc->uc_fsuid = rec->sx_fsuid;
+ uc->uc_fsgid = rec->sx_fsgid;
+ uc->uc_cap = rec->sx_cap;
+ uc->uc_suppgids[0] = rec->sx_suppgid1;
+ uc->uc_suppgids[1] = -1;
+
+ rr->rr_opcode = rec->sx_opcode;
+ rr->rr_fid1 = &rec->sx_fid;
+ attr->la_valid = rec->sx_valid;
+ attr->la_ctime = rec->sx_time;
+ attr->la_size = rec->sx_size;
+ attr->la_flags = rec->sx_flags;
+
+ if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
+ mdt_set_capainfo(info, 0, rr->rr_fid1,
+ req_capsule_client_get(pill, &RMF_CAPA1));
+ else
+ mdt_set_capainfo(info, 0, rr->rr_fid1, BYPASS_CAPA);
+
+ rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
+ if (rc < 0)
+ RETURN(rc);
+
+ if (req_capsule_field_present(pill, &RMF_EADATA, RCL_CLIENT)) {
+ rr->rr_eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
+ RCL_CLIENT);
+ if (rr->rr_eadatalen > 0) {
+ rr->rr_eadata = req_capsule_client_get(pill,
+ &RMF_EADATA);
+ if (rr->rr_eadata == NULL)
+ RETURN(-EFAULT);
+ } else {
+ rr->rr_eadata = NULL;
+ }
+ } else if (!(attr->la_valid & OBD_MD_FLXATTRRM)) {
+ CDEBUG(D_INFO, "no xattr data supplied\n");
RETURN(-EFAULT);
- rr->rr_namelen = req_capsule_get_size(pill, &RMF_NAME, RCL_CLIENT) - 1;
- LASSERT(rr->rr_namelen > 0);
-
- sp->u.sp_ea.eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
- RCL_CLIENT);
- if (sp->u.sp_ea.eadatalen) {
- sp->u.sp_ea.eadata = req_capsule_client_get(pill, &RMF_EADATA);
- if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY)
- sp->u.sp_ea.no_lov_create = 1;
}
+ if (mdt_dlmreq_unpack(info) < 0)
+ RETURN(-EPROTO);
+
RETURN(0);
}
+
typedef int (*reint_unpacker)(struct mdt_thread_info *info);
static reint_unpacker mdt_reint_unpackers[REINT_MAX] = {
- [REINT_SETATTR] = mdt_setattr_unpack,
- [REINT_CREATE] = mdt_create_unpack,
- [REINT_LINK] = mdt_link_unpack,
- [REINT_UNLINK] = mdt_unlink_unpack,
- [REINT_RENAME] = mdt_rename_unpack,
- [REINT_OPEN] = mdt_open_unpack
+ [REINT_SETATTR] = mdt_setattr_unpack,
+ [REINT_CREATE] = mdt_create_unpack,
+ [REINT_LINK] = mdt_link_unpack,
+ [REINT_UNLINK] = mdt_unlink_unpack,
+ [REINT_RENAME] = mdt_rename_unpack,
+ [REINT_OPEN] = mdt_open_unpack,
+ [REINT_SETXATTR] = mdt_setxattr_unpack,
+ [REINT_RMENTRY] = mdt_rmentry_unpack,
+ [REINT_MIGRATE] = mdt_rename_unpack,
};
int mdt_reint_unpack(struct mdt_thread_info *info, __u32 op)
git://git.whamcloud.com / fs / lustre-release.git / blobdiff