* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2012, Whamcloud, Inc.
+ * Copyright (c) 2011, 2015, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#define DEBUG_SUBSYSTEM S_MDS
+#include <linux/user_namespace.h>
+#ifdef HAVE_UIDGID_HEADER
+# include <linux/uidgid.h>
+#endif
#include "mdt_internal.h"
-#include <lnet/lib-lnet.h>
-
+#include <lnet/nidstr.h>
+#include <lustre_nodemap.h>
typedef enum ucred_init_type {
NONE_INIT = 0,
void mdt_exit_ucred(struct mdt_thread_info *info)
{
- 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) {
- cfs_put_group_info(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 *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;
+ }
}
static int match_nosquash_list(struct rw_semaphore *sem,
- cfs_list_t *nidlist,
+ struct list_head *nidlist,
lnet_nid_t peernid)
{
int rc;
/* root_squash for inter-MDS operations */
static int mdt_root_squash(struct mdt_thread_info *info, lnet_nid_t peernid)
{
- struct md_ucred *ucred = mdt_ucred(info);
- ENTRY;
+ struct lu_ucred *ucred = mdt_ucred(info);
+ struct root_squash_info *squash = &info->mti_mdt->mdt_squash;
+ ENTRY;
- if (!info->mti_mdt->mdt_squash_uid || ucred->mu_fsuid)
- RETURN(0);
+ LASSERT(ucred != NULL);
+ if (!squash->rsi_uid || ucred->uc_fsuid)
+ RETURN(0);
- if (match_nosquash_list(&info->mti_mdt->mdt_squash_sem,
- &info->mti_mdt->mdt_nosquash_nids,
- peernid)) {
- CDEBUG(D_OTHER, "%s is in nosquash_nids list\n",
- libcfs_nid2str(peernid));
- 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->mu_fsuid, ucred->mu_fsgid, ucred->mu_cap,
- info->mti_mdt->mdt_squash_uid, info->mti_mdt->mdt_squash_gid,
- 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->mu_fsuid = info->mti_mdt->mdt_squash_uid;
- ucred->mu_fsgid = info->mti_mdt->mdt_squash_gid;
- ucred->mu_cap = 0;
- ucred->mu_suppgids[0] = -1;
- ucred->mu_suppgids[1] = -1;
+ 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);
+ RETURN(0);
+}
+
+static void ucred_set_jobid(struct mdt_thread_info *info, struct lu_ucred *uc)
+{
+ struct ptlrpc_request *req = mdt_info_req(info);
+ const char *jobid = mdt_req_get_jobid(req);
+
+ /* set jobid if specified. */
+ if (jobid)
+ strlcpy(uc->uc_jobid, jobid, sizeof(uc->uc_jobid));
+ else
+ uc->uc_jobid[0] = '\0';
}
static int new_init_ucred(struct mdt_thread_info *info, ucred_init_type_t type,
- void *buf)
+ void *buf, bool drop_fs_cap)
{
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 md_ucred *ucred = mdt_ucred(info);
+ 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);
LASSERT(req->rq_auth_gss);
LASSERT(!req->rq_auth_usr_mdt);
LASSERT(req->rq_user_desc);
+ LASSERT(ucred != NULL);
- ucred->mu_valid = UCRED_INVALID;
+ ucred->uc_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;
+ 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;
- if (type == BODY_INIT) {
- struct mdt_body *body = (struct mdt_body *)buf;
+ if (type == BODY_INIT) {
+ struct mdt_body *body = (struct mdt_body *)buf;
- ucred->mu_suppgids[0] = body->suppgid;
- ucred->mu_suppgids[1] = -1;
- }
+ ucred->uc_suppgids[0] = body->mbo_suppgid;
+ ucred->uc_suppgids[1] = -1;
+ }
- /* sanity check: we expect the uid which client claimed is true */
- if (remote) {
- if (req->rq_auth_mapped_uid == INVALID_UID) {
- CDEBUG(D_SEC, "remote user not mapped, deny access!\n");
- RETURN(-EACCES);
- }
+ /* 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");
+ RETURN(-EACCES);
+ }
- if (ptlrpc_user_desc_do_idmap(req, pud))
- RETURN(-EACCES);
+ if (ptlrpc_user_desc_do_idmap(req, pud))
+ RETURN(-EACCES);
if (req->rq_auth_mapped_uid != pud->pud_uid) {
CDEBUG(D_SEC, "remote client %s: auth/mapped uid %u/%u "
RETURN(-EACCES);
}
} else {
- if (req->rq_auth_uid != pud->pud_uid) {
+ if (!flvr_is_rootonly(req->rq_flvr.sf_rpc) &&
+ 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,
"enabled!\n");
RETURN(-EACCES);
} else {
- ucred->mu_identity = NULL;
+ ucred->uc_identity = NULL;
perm = CFS_SETUID_PERM | CFS_SETGID_PERM |
CFS_SETGRP_PERM;
}
if (IS_ERR(identity)) {
if (unlikely(PTR_ERR(identity) == -EREMCHG &&
!remote)) {
- ucred->mu_identity = NULL;
+ ucred->uc_identity = NULL;
perm = CFS_SETUID_PERM | CFS_SETGID_PERM |
CFS_SETGRP_PERM;
} else {
RETURN(-EACCES);
}
} else {
- ucred->mu_identity = identity;
- perm = mdt_identity_get_perm(ucred->mu_identity,
- remote, peernid);
+ ucred->uc_identity = identity;
+ perm = mdt_identity_get_perm(ucred->uc_identity,
+ remote, peernid);
}
}
/* find out the setuid/setgid attempt */
setuid = (pud->pud_uid != pud->pud_fsuid);
- setgid = ((pud->pud_gid != pud->pud_fsgid) ||
- (ucred->mu_identity &&
- (pud->pud_gid != ucred->mu_identity->mi_gid)));
+ setgid = ((pud->pud_gid != pud->pud_fsgid) ||
+ (ucred->uc_identity &&
+ (pud->pud_gid != ucred->uc_identity->mi_gid)));
/* check permission of setuid */
if (setuid && !(perm & CFS_SETUID_PERM)) {
/* 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->mu_identity->mi_gid, libcfs_nid2str(peernid));
- GOTO(out, rc = -EACCES);
+ 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);
}
/*
* NB: remote client not allowed to setgroups anyway.
*/
- if (!remote && perm & CFS_SETGRP_PERM) {
- if (pud->pud_ngroups) {
- /* setgroups for local client */
- ucred->mu_ginfo = cfs_groups_alloc(pud->pud_ngroups);
- if (!ucred->mu_ginfo) {
- CERROR("failed to alloc %d groups\n",
- pud->pud_ngroups);
- GOTO(out, rc = -ENOMEM);
- }
-
- lustre_groups_from_list(ucred->mu_ginfo,
- pud->pud_groups);
- lustre_groups_sort(ucred->mu_ginfo);
- } else {
- ucred->mu_ginfo = NULL;
- }
- } else {
- ucred->mu_suppgids[0] = -1;
- ucred->mu_suppgids[1] = -1;
- ucred->mu_ginfo = NULL;
- }
+ 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->mu_uid = pud->pud_uid;
- ucred->mu_gid = pud->pud_gid;
- ucred->mu_fsuid = pud->pud_fsuid;
- ucred->mu_fsgid = pud->pud_fsgid;
+ 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);
+ /* process root_squash here. */
+ mdt_root_squash(info, peernid);
- /* remove fs privilege for non-root user. */
- if (ucred->mu_fsuid)
- ucred->mu_cap = pud->pud_cap & ~CFS_CAP_FS_MASK;
- else
- ucred->mu_cap = pud->pud_cap;
- if (remote && !(perm & CFS_RMTOWN_PERM))
- ucred->mu_cap &= ~(CFS_CAP_SYS_RESOURCE_MASK |
- CFS_CAP_CHOWN_MASK);
- ucred->mu_valid = UCRED_NEW;
+ /* remove fs privilege for non-root user. */
+ if (ucred->uc_fsuid && drop_fs_cap)
+ 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;
+ ucred_set_jobid(info, ucred);
- EXIT;
+ EXIT;
out:
- if (rc) {
- if (ucred->mu_ginfo) {
- cfs_put_group_info(ucred->mu_ginfo);
- ucred->mu_ginfo = NULL;
- }
- if (ucred->mu_identity) {
- mdt_identity_put(mdt->mdt_identity_cache,
- ucred->mu_identity);
- ucred->mu_identity = NULL;
- }
- }
+ 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;
+ return rc;
+}
+
+/**
+ * Check whether allow the client to set supplementary group IDs or not.
+ *
+ * \param[in] info pointer to the thread context
+ * \param[in] uc pointer to the RPC user descriptor
+ *
+ * \retval true if allow to set supplementary group IDs
+ * \retval false for other cases
+ */
+bool allow_client_chgrp(struct mdt_thread_info *info, struct lu_ucred *uc)
+{
+ __u32 remote = exp_connect_rmtclient(info->mti_exp);
+ __u32 perm;
+
+ /* 1. If identity_upcall is disabled, then forbid remote client to set
+ * supplementary group IDs, but permit local client to do that. */
+ if (is_identity_get_disabled(info->mti_mdt->mdt_identity_cache)) {
+ if (remote)
+ return false;
+
+ return true;
+ }
+
+ /* 2. If fail to get related identities, then forbid any client to
+ * set supplementary group IDs. */
+ if (uc->uc_identity == NULL)
+ return false;
+
+ /* 3. Check the permission in the identities. */
+ perm = mdt_identity_get_perm(uc->uc_identity, remote,
+ mdt_info_req(info)->rq_peer.nid);
+ if (perm & CFS_SETGRP_PERM)
+ return true;
+
+ return false;
}
int mdt_check_ucred(struct mdt_thread_info *info)
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 md_ucred *ucred = mdt_ucred(info);
+ struct lu_ucred *ucred = mdt_ucred(info);
struct md_identity *identity = NULL;
lnet_nid_t peernid = req->rq_peer.nid;
__u32 perm = 0;
ENTRY;
- if ((ucred->mu_valid == UCRED_OLD) || (ucred->mu_valid == UCRED_NEW))
- RETURN(0);
+ LASSERT(ucred != NULL);
+ if ((ucred->uc_valid == UCRED_OLD) || (ucred->uc_valid == UCRED_NEW))
+ RETURN(0);
if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
RETURN(0);
/* sanity check: if we use strong authentication, we expect the
* uid which client claimed is true */
if (remote) {
- if (req->rq_auth_mapped_uid == INVALID_UID) {
+ 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);
}
} else {
- if (req->rq_auth_uid != pud->pud_uid) {
+ if (!flvr_is_rootonly(req->rq_flvr.sf_rpc) &&
+ 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,
return rc;
}
-static int old_init_ucred(struct mdt_thread_info *info,
- struct mdt_body *body)
+static int old_init_ucred_common(struct mdt_thread_info *info,
+ struct lu_nodemap *nodemap,
+ bool drop_fs_cap)
{
- struct md_ucred *uc = mdt_ucred(info);
- struct mdt_device *mdt = info->mti_mdt;
- struct md_identity *identity = NULL;
+ struct lu_ucred *uc = mdt_ucred(info);
+ struct mdt_device *mdt = info->mti_mdt;
+ struct md_identity *identity = 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 ||
+ uc->uc_cap & CFS_CAP_FS_MASK)) {
+ identity = NULL;
+ } else {
+ CDEBUG(D_SEC, "Deny access without identity: "
+ "uid %u\n", uc->uc_fsuid);
+ RETURN(-EACCES);
+ }
+ }
+ }
+ uc->uc_identity = identity;
+
+ if (nodemap && uc->uc_o_uid == nodemap->nm_squash_uid) {
+ uc->uc_fsuid = nodemap->nm_squash_uid;
+ uc->uc_fsgid = nodemap->nm_squash_gid;
+ uc->uc_cap = 0;
+ uc->uc_suppgids[0] = -1;
+ uc->uc_suppgids[1] = -1;
+ }
- ENTRY;
+ /* process root_squash here. */
+ mdt_root_squash(info, mdt_info_req(info)->rq_peer.nid);
- uc->mu_valid = UCRED_INVALID;
- 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;
- uc->mu_ginfo = NULL;
- if (!is_identity_get_disabled(mdt->mdt_identity_cache)) {
- identity = mdt_identity_get(mdt->mdt_identity_cache,
- uc->mu_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->mu_fsuid);
- RETURN(-EACCES);
- }
- }
- }
- uc->mu_identity = identity;
+ /* remove fs privilege for non-root user. */
+ if (uc->uc_fsuid && drop_fs_cap)
+ uc->uc_cap &= ~CFS_CAP_FS_MASK;
+ uc->uc_valid = UCRED_OLD;
+ ucred_set_jobid(info, uc);
- /* process root_squash here. */
- mdt_root_squash(info, mdt_info_req(info)->rq_peer.nid);
+ return 0;
+}
- /* remove fs privilege for non-root user. */
- if (uc->mu_fsuid)
- uc->mu_cap = body->capability & ~CFS_CAP_FS_MASK;
- else
- uc->mu_cap = body->capability;
- uc->mu_valid = UCRED_OLD;
+static int old_init_ucred(struct mdt_thread_info *info,
+ struct mdt_body *body, bool drop_fs_cap)
+{
+ struct lu_ucred *uc = mdt_ucred(info);
+ struct lu_nodemap *nodemap;
+ int rc;
+ ENTRY;
- RETURN(0);
+ nodemap = nodemap_get_from_exp(info->mti_exp);
+ if (IS_ERR(nodemap))
+ RETURN(PTR_ERR(nodemap));
+
+ body->mbo_uid = nodemap_map_id(nodemap, NODEMAP_UID,
+ NODEMAP_CLIENT_TO_FS, body->mbo_uid);
+ body->mbo_gid = nodemap_map_id(nodemap, NODEMAP_GID,
+ NODEMAP_CLIENT_TO_FS, body->mbo_gid);
+ body->mbo_fsuid = nodemap_map_id(nodemap, NODEMAP_UID,
+ NODEMAP_CLIENT_TO_FS, body->mbo_fsuid);
+ body->mbo_fsgid = nodemap_map_id(nodemap, NODEMAP_GID,
+ NODEMAP_CLIENT_TO_FS, body->mbo_fsgid);
+
+ LASSERT(uc != NULL);
+ uc->uc_valid = UCRED_INVALID;
+ uc->uc_o_uid = uc->uc_uid = body->mbo_uid;
+ uc->uc_o_gid = uc->uc_gid = body->mbo_gid;
+ uc->uc_o_fsuid = uc->uc_fsuid = body->mbo_fsuid;
+ uc->uc_o_fsgid = uc->uc_fsgid = body->mbo_fsgid;
+ uc->uc_suppgids[0] = body->mbo_suppgid;
+ uc->uc_suppgids[1] = -1;
+ uc->uc_ginfo = NULL;
+ uc->uc_cap = body->mbo_capability;
+
+ rc = old_init_ucred_common(info, nodemap, drop_fs_cap);
+ nodemap_putref(nodemap);
+
+ RETURN(rc);
}
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 md_identity *identity = NULL;
+ struct lu_ucred *uc = mdt_ucred(info);
+ struct lu_nodemap *nodemap;
+ int rc;
+ ENTRY;
- ENTRY;
+ nodemap = nodemap_get_from_exp(info->mti_exp);
+ if (IS_ERR(nodemap))
+ RETURN(PTR_ERR(nodemap));
- uc->mu_valid = UCRED_INVALID;
- 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;
- uc->mu_ginfo = NULL;
- if (!is_identity_get_disabled(mdt->mdt_identity_cache)) {
- identity = mdt_identity_get(mdt->mdt_identity_cache,
- uc->mu_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->mu_fsuid);
- RETURN(-EACCES);
- }
- }
- }
- uc->mu_identity = identity;
+ LASSERT(uc != NULL);
- /* process root_squash here. */
- mdt_root_squash(info, mdt_info_req(info)->rq_peer.nid);
+ uc->uc_fsuid = nodemap_map_id(nodemap, NODEMAP_UID,
+ NODEMAP_CLIENT_TO_FS, uc->uc_fsuid);
+ uc->uc_fsgid = nodemap_map_id(nodemap, NODEMAP_GID,
+ NODEMAP_CLIENT_TO_FS, uc->uc_fsgid);
- /* remove fs privilege for non-root user. */
- if (uc->mu_fsuid)
- uc->mu_cap &= ~CFS_CAP_FS_MASK;
- uc->mu_valid = UCRED_OLD;
+ 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;
- RETURN(0);
+ rc = old_init_ucred_common(info, nodemap, true); /* drop_fs_cap=true */
+ nodemap_putref(nodemap);
+
+ RETURN(rc);
}
-int mdt_init_ucred(struct mdt_thread_info *info, struct mdt_body *body)
+static inline int __mdt_init_ucred(struct mdt_thread_info *info,
+ struct mdt_body *body,
+ bool drop_fs_cap)
{
- struct ptlrpc_request *req = mdt_info_req(info);
- struct md_ucred *uc = mdt_ucred(info);
+ struct ptlrpc_request *req = mdt_info_req(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);
+ mdt_exit_ucred(info);
- if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
- return old_init_ucred(info, body);
- else
- return new_init_ucred(info, BODY_INIT, body);
+ if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
+ return old_init_ucred(info, body, drop_fs_cap);
+ else
+ return new_init_ucred(info, BODY_INIT, body, drop_fs_cap);
+}
+
+int mdt_init_ucred(struct mdt_thread_info *info, struct mdt_body *body)
+{
+ return __mdt_init_ucred(info, body, true);
+}
+
+/* LU-6528 when "no_subtree_check" is set for NFS export, nfsd_set_fh_dentry()
+ * doesn't set correct fsuid explicitely, but raise capability to allow
+ * exportfs_decode_fh() to reconnect disconnected dentry into dcache. So for
+ * lookup (i.e. intent_getattr), we should keep FS capability, otherwise it
+ * will fail permission check. */
+int mdt_init_ucred_intent_getattr(struct mdt_thread_info *info,
+ struct mdt_body *body)
+{
+ return __mdt_init_ucred(info, body, false);
}
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 ptlrpc_request *req = mdt_info_req(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);
+ mdt_exit_ucred(info);
- if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
- return old_init_ucred_reint(info);
- else
- return new_init_ucred(info, REC_INIT, NULL);
+ if (!req->rq_auth_gss || req->rq_auth_usr_mdt || !req->rq_user_desc)
+ return old_init_ucred_reint(info);
+ else
+ return new_init_ucred(info, REC_INIT, NULL, true);
}
/* 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;
- __u16 count;
-
- 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), count);
- if (count == LOV_ALL_STRIPES)
- return;
- LASSERT(count <= LOV_MAX_STRIPE_COUNT);
- for (i = 0, lod = lmm->lmm_objects; i < 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_seq),
- 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_dump_lmv(unsigned int level, const union lmv_mds_md *lmv)
+{
+ 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 */
body = req_capsule_server_get(pill, &RMF_MDT_BODY);
LASSERT(body != NULL);
- if (body->valid & (OBD_MD_FLDIREA | OBD_MD_FLEASIZE | OBD_MD_LINKNAME))
- md_size = body->eadatasize;
- else
- md_size = 0;
+ if (body->mbo_valid & (OBD_MD_FLDIREA | OBD_MD_FLEASIZE |
+ OBD_MD_LINKNAME))
+ md_size = body->mbo_eadatasize;
+ else
+ md_size = 0;
- acl_size = body->aclsize;
+ acl_size = body->mbo_aclsize;
/* this replay - not send info to client */
- if (info->mti_spec.no_create == 1) {
- md_size = 0;
- acl_size = 0;
- }
+ 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,
- (unsigned long long)(body->valid & OBD_MD_FLMDSCAPA),
- (unsigned long long)(body->valid & OBD_MD_FLOSSCAPA));
+ CDEBUG(D_INFO, "Shrink to md_size = %d cookie/acl_size = %d\n",
+ md_size, acl_size);
/*
&RMF_MDT_BODY,
&RMF_MDT_MD,
/* MDT_MD buffer may be bigger than packed value, let's shrink all
* buffers before growing it */
if (info->mti_big_lmm_used) {
- LASSERT(req_capsule_has_field(pill, &RMF_MDT_MD, RCL_SERVER));
- md_packed = req_capsule_get_size(pill, &RMF_MDT_MD,
- RCL_SERVER);
- LASSERT(md_packed > 0);
- /* 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);
- /* free big lmm if md_size is not needed */
- if (md_size == 0)
+ /* 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);
}
acl_size, RCL_SERVER);
if (req_capsule_has_field(pill, &RMF_CAPA1, RCL_SERVER) &&
- !(body->valid & OBD_MD_FLMDSCAPA))
- req_capsule_shrink(pill, &RMF_CAPA1, 0, RCL_SERVER);
+ !(body->mbo_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);
+ if (req_capsule_has_field(pill, &RMF_CAPA2, RCL_SERVER) &&
+ !(body->mbo_valid & OBD_MD_FLOSSCAPA))
+ req_capsule_shrink(pill, &RMF_CAPA2, 0, RCL_SERVER);
/*
* Some more field should be shrinked if needed.
/* 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);
+ body->mbo_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 EA */
- lmm = req_capsule_server_get(pill, &RMF_MDT_MD);
- 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);
+ /* 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)
{
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);
CERROR("No need in LOV EA upon unlink\n");
dump_stack();
}
- repbody->eadatasize = 0;
-
- if (ma->ma_cookie_size && (ma->ma_valid & MA_COOKIE)) {
- repbody->aclsize = ma->ma_cookie_size;
- repbody->valid |= OBD_MD_FLCOOKIE;
- }
-
- if (info->mti_mdt->mdt_opts.mo_oss_capa &&
- info->mti_exp->exp_connect_flags & OBD_CONNECT_OSS_CAPA &&
- repbody->valid & OBD_MD_FLEASIZE) {
- struct lustre_capa *capa;
-
- 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;
- }
+ repbody->mbo_eadatasize = 0;
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_OPEN_TRUNC;
-
- 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 & ATTR_KILL_SUID)
- out |= LA_KILL_SUID;
-
- if (in & ATTR_KILL_SGID)
- out |= LA_KILL_SGID;
-
- if (in & MDS_OPEN_OWNEROVERRIDE)
- ma->ma_attr_flags |= MDS_OPEN_OWNEROVERRIDE;
-
- if (in & ATTR_FORCE)
- ma->ma_attr_flags |= MDS_PERM_BYPASS;
-
- /*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|
- ATTR_FORCE|ATTR_KILL_SUID|ATTR_KILL_SGID);
- if (in != 0)
- CERROR("Unknown attr bits: "LPX64"\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;
}
+
/* 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 md_attr *ma = &info->mti_attr;
- struct lu_attr *la = &ma->ma_attr;
- struct req_capsule *pill = info->mti_pill;
- struct mdt_reint_record *rr = &info->mti_rr;
- struct mdt_rec_setattr *rec;
+ 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 mdt_reint_record *rr = &info->mti_rr;
+ struct mdt_rec_setattr *rec;
+ struct lu_nodemap *nodemap;
ENTRY;
CLASSERT(sizeof(struct mdt_rec_setattr)== sizeof(struct mdt_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_mode = rec->sa_mode;
- la->la_flags = rec->sa_attr_flags;
- la->la_uid = rec->sa_uid;
- la->la_gid = rec->sa_gid;
- la->la_size = rec->sa_size;
- la->la_blocks = rec->sa_blocks;
- la->la_ctime = rec->sa_ctime;
- la->la_atime = rec->sa_atime;
- 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));
-
- RETURN(0);
+ la->la_valid = mdt_attr_valid_xlate(rec->sa_valid, rr, ma);
+ la->la_mode = rec->sa_mode;
+ la->la_flags = rec->sa_attr_flags;
+
+ nodemap = nodemap_get_from_exp(info->mti_exp);
+ if (IS_ERR(nodemap))
+ RETURN(PTR_ERR(nodemap));
+
+ la->la_uid = nodemap_map_id(nodemap, NODEMAP_UID,
+ NODEMAP_CLIENT_TO_FS, rec->sa_uid);
+ la->la_gid = nodemap_map_id(nodemap, NODEMAP_GID,
+ NODEMAP_CLIENT_TO_FS, rec->sa_gid);
+ nodemap_putref(nodemap);
+
+ la->la_size = rec->sa_size;
+ la->la_blocks = rec->sa_blocks;
+ la->la_ctime = rec->sa_ctime;
+ la->la_atime = rec->sa_atime;
+ la->la_mtime = rec->sa_mtime;
+ ma->ma_valid = MA_INODE;
+
+ if (rec->sa_bias & MDS_DATA_MODIFIED)
+ ma->ma_attr_flags |= MDS_DATA_MODIFIED;
+ else
+ ma->ma_attr_flags &= ~MDS_DATA_MODIFIED;
+
+ if (rec->sa_bias & MDS_HSM_RELEASE)
+ ma->ma_attr_flags |= MDS_HSM_RELEASE;
+ else
+ ma->ma_attr_flags &= ~MDS_HSM_RELEASE;
+
+ if (rec->sa_bias & MDS_CLOSE_LAYOUT_SWAP)
+ ma->ma_attr_flags |= MDS_CLOSE_LAYOUT_SWAP;
+ else
+ ma->ma_attr_flags &= ~MDS_CLOSE_LAYOUT_SWAP;
+
+ RETURN(0);
}
-static int mdt_ioepoch_unpack(struct mdt_thread_info *info)
+static int mdt_close_handle_unpack(struct mdt_thread_info *info)
{
- struct req_capsule *pill = info->mti_pill;
- ENTRY;
+ struct req_capsule *pill = info->mti_pill;
+ struct mdt_ioepoch *ioepoch;
+ ENTRY;
- if (req_capsule_get_size(pill, &RMF_MDT_EPOCH, RCL_CLIENT))
- info->mti_ioepoch =
- req_capsule_client_get(pill, &RMF_MDT_EPOCH);
- else
- info->mti_ioepoch = NULL;
- RETURN(info->mti_ioepoch == NULL ? -EFAULT : 0);
+ if (req_capsule_get_size(pill, &RMF_MDT_EPOCH, RCL_CLIENT))
+ ioepoch = req_capsule_client_get(pill, &RMF_MDT_EPOCH);
+ else
+ ioepoch = NULL;
+
+ if (ioepoch == NULL)
+ RETURN(-EPROTO);
+
+ info->mti_close_handle = ioepoch->mio_handle;
+
+ RETURN(0);
}
static inline int mdt_dlmreq_unpack(struct mdt_thread_info *info) {
if (rc)
RETURN(rc);
- /* Epoch may be absent */
- 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);
- ma->ma_lmm_size = rr->rr_eadatalen;
- if (ma->ma_lmm_size > 0) {
- ma->ma_lmm = (void *)rr->rr_eadata;
- ma->ma_valid |= MA_LOV;
- }
- }
+ 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);
+ rc = mdt_dlmreq_unpack(info);
+ RETURN(rc);
+}
+
+static int mdt_intent_close_unpack(struct mdt_thread_info *info)
+{
+ struct md_attr *ma = &info->mti_attr;
+ struct req_capsule *pill = info->mti_pill;
+ ENTRY;
+
+ if (!(ma->ma_attr_flags & (MDS_HSM_RELEASE | MDS_CLOSE_LAYOUT_SWAP)))
+ RETURN(0);
+
+ req_capsule_extend(pill, &RQF_MDS_INTENT_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;
+ int rc;
+ ENTRY;
- rc = mdt_ioepoch_unpack(info);
+ rc = mdt_close_handle_unpack(info);
if (rc)
RETURN(rc);
- RETURN(mdt_setattr_unpack_rec(info));
+ rc = mdt_setattr_unpack_rec(info);
+ if (rc)
+ RETURN(rc);
+
+ rc = mdt_intent_close_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;
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;
- uc->mu_umask = rec->cr_umask;
+ /* 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 = 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_name && rr->rr_namelen > 0);
+ 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;
RETURN(-EFAULT);
} else {
req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_RMT_ACL);
- }
+ 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);
+ 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;
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;
attr->la_mtime = rec->lk_time;
attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME;
- 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 (req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT))
- 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;
+ rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
+ if (rc < 0)
+ RETURN(rc);
- LASSERT(rr->rr_namelen > 0);
+ rc = mdt_dlmreq_unpack(info);
- rc = mdt_dlmreq_unpack(info);
- RETURN(rc);
+ 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;
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_suppgid1;
- 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;
attr->la_mode = rec->ul_mode;
attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME | LA_MODE;
- 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));
-
- rr->rr_name = req_capsule_client_get(pill, &RMF_NAME);
- rr->rr_namelen = req_capsule_get_size(pill, &RMF_NAME, RCL_CLIENT) - 1;
- if (rr->rr_name == NULL || rr->rr_namelen == 0)
- RETURN(-EFAULT);
+ 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));
+ 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;
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;
attr->la_mode = rec->rn_mode;
attr->la_valid = LA_UID | LA_GID | LA_CTIME | LA_MTIME | LA_MODE;
- 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 (req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT))
- mdt_set_capainfo(info, 1, rr->rr_fid2,
- req_capsule_client_get(pill, &RMF_CAPA2));
+ rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
+ if (rc < 0)
+ RETURN(rc);
- 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;
- rr->rr_tgtlen = req_capsule_get_size(pill, &RMF_SYMTGT, RCL_CLIENT) - 1;
- LASSERT(rr->rr_namelen > 0 && rr->rr_tgtlen > 0);
+ 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;
+ if (rec->rn_bias & MDS_RENAME_MIGRATE) {
+ req_capsule_extend(info->mti_pill, &RQF_MDS_REINT_MIGRATE);
+ rc = mdt_close_handle_unpack(info);
+ if (rc < 0)
+ RETURN(rc);
+ info->mti_spec.sp_migrate_close = 1;
+ }
+
info->mti_spec.no_create = !!req_is_replay(mdt_info_req(info));
- rc = mdt_dlmreq_unpack(info);
- RETURN(rc);
+
+ rc = mdt_dlmreq_unpack(info);
+
+ RETURN(rc);
}
/*
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;
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;
- uc->mu_umask = rec->cr_umask;
+ /* 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;
/* 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_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 (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));
-#else
- /*
- * FIXME: capa in replay open request might have expired,
- * bypass capa check. Security hole?
- */
- mdt_set_capainfo(info, 0, rr->rr_fid1, BYPASS_CAPA);
- mdt_set_capainfo(info, 1, rr->rr_fid2, BYPASS_CAPA);
-#endif
- }
-
- 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;
+ 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,
static int mdt_setxattr_unpack(struct mdt_thread_info *info)
{
- struct mdt_reint_record *rr = &info->mti_rr;
- struct md_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;
- ENTRY;
+ 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) ==
if (rec == NULL)
RETURN(-EFAULT);
- uc->mu_fsuid = rec->sx_fsuid;
- uc->mu_fsgid = rec->sx_fsgid;
- uc->mu_cap = rec->sx_cap;
- uc->mu_suppgids[0] = rec->sx_suppgid1;
- uc->mu_suppgids[1] = -1;
+ /* 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_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);
-
- 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);
+ 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,
RETURN(-EFAULT);
}
+ 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_SETXATTR] = mdt_setxattr_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