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-rw-r--r--include/linux/sunrpc/auth.h4
-rw-r--r--net/sunrpc/auth.c35
-rw-r--r--net/sunrpc/auth_unix.c56
-rw-r--r--net/sunrpc/sched.c4
4 files changed, 49 insertions, 50 deletions
diff --git a/include/linux/sunrpc/auth.h b/include/linux/sunrpc/auth.h
index 84d5f3a05b16..012566a6257b 100644
--- a/include/linux/sunrpc/auth.h
+++ b/include/linux/sunrpc/auth.h
@@ -89,7 +89,6 @@ struct rpc_auth {
/* Flags for rpcauth_lookupcred() */
#define RPCAUTH_LOOKUP_NEW 0x01 /* Accept an uninitialised cred */
-#define RPCAUTH_LOOKUP_ROOTCREDS 0x02 /* This really ought to go! */
/*
* Client authentication ops
@@ -136,7 +135,8 @@ void rpcauth_release(struct rpc_auth *);
struct rpc_cred * rpcauth_lookup_credcache(struct rpc_auth *, struct auth_cred *, int);
void rpcauth_init_cred(struct rpc_cred *, const struct auth_cred *, struct rpc_auth *, const struct rpc_credops *);
struct rpc_cred * rpcauth_lookupcred(struct rpc_auth *, int);
-struct rpc_cred * rpcauth_bindcred(struct rpc_task *);
+void rpcauth_bindcred(struct rpc_task *);
+void rpcauth_bind_root_cred(struct rpc_task *);
void rpcauth_holdcred(struct rpc_task *);
void put_rpccred(struct rpc_cred *);
void rpcauth_unbindcred(struct rpc_task *);
diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c
index b38f6ee2f5e2..b0f2b2ee7cc0 100644
--- a/net/sunrpc/auth.c
+++ b/net/sunrpc/auth.c
@@ -285,9 +285,6 @@ rpcauth_lookup_credcache(struct rpc_auth *auth, struct auth_cred * acred,
nr = hash_long(acred->uid, RPC_CREDCACHE_HASHBITS);
- if (!(flags & RPCAUTH_LOOKUP_ROOTCREDS))
- nr = acred->uid & RPC_CREDCACHE_MASK;
-
rcu_read_lock();
hlist_for_each_entry_rcu(entry, pos, &cache->hashtable[nr], cr_hash) {
if (!entry->cr_ops->crmatch(acred, entry, flags))
@@ -378,30 +375,38 @@ rpcauth_init_cred(struct rpc_cred *cred, const struct auth_cred *acred,
}
EXPORT_SYMBOL_GPL(rpcauth_init_cred);
-struct rpc_cred *
-rpcauth_bindcred(struct rpc_task *task)
+void
+rpcauth_bind_root_cred(struct rpc_task *task)
{
struct rpc_auth *auth = task->tk_client->cl_auth;
struct auth_cred acred = {
- .uid = current->fsuid,
- .gid = current->fsgid,
- .group_info = current->group_info,
+ .uid = 0,
+ .gid = 0,
};
struct rpc_cred *ret;
- int flags = 0;
dprintk("RPC: %5u looking up %s cred\n",
task->tk_pid, task->tk_client->cl_auth->au_ops->au_name);
- get_group_info(acred.group_info);
- if (task->tk_flags & RPC_TASK_ROOTCREDS)
- flags |= RPCAUTH_LOOKUP_ROOTCREDS;
- ret = auth->au_ops->lookup_cred(auth, &acred, flags);
+ ret = auth->au_ops->lookup_cred(auth, &acred, 0);
+ if (!IS_ERR(ret))
+ task->tk_msg.rpc_cred = ret;
+ else
+ task->tk_status = PTR_ERR(ret);
+}
+
+void
+rpcauth_bindcred(struct rpc_task *task)
+{
+ struct rpc_auth *auth = task->tk_client->cl_auth;
+ struct rpc_cred *ret;
+
+ dprintk("RPC: %5u looking up %s cred\n",
+ task->tk_pid, auth->au_ops->au_name);
+ ret = rpcauth_lookupcred(auth, 0);
if (!IS_ERR(ret))
task->tk_msg.rpc_cred = ret;
else
task->tk_status = PTR_ERR(ret);
- put_group_info(acred.group_info);
- return ret;
}
void
diff --git a/net/sunrpc/auth_unix.c b/net/sunrpc/auth_unix.c
index 5ed91e5bcee4..b763710d3dbd 100644
--- a/net/sunrpc/auth_unix.c
+++ b/net/sunrpc/auth_unix.c
@@ -60,7 +60,8 @@ static struct rpc_cred *
unx_create_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags)
{
struct unx_cred *cred;
- int i;
+ unsigned int groups = 0;
+ unsigned int i;
dprintk("RPC: allocating UNIX cred for uid %d gid %d\n",
acred->uid, acred->gid);
@@ -70,21 +71,17 @@ unx_create_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags)
rpcauth_init_cred(&cred->uc_base, acred, auth, &unix_credops);
cred->uc_base.cr_flags = 1UL << RPCAUTH_CRED_UPTODATE;
- if (flags & RPCAUTH_LOOKUP_ROOTCREDS) {
- cred->uc_uid = 0;
- cred->uc_gid = 0;
- cred->uc_gids[0] = NOGROUP;
- } else {
- int groups = acred->group_info->ngroups;
- if (groups > NFS_NGROUPS)
- groups = NFS_NGROUPS;
-
- cred->uc_gid = acred->gid;
- for (i = 0; i < groups; i++)
- cred->uc_gids[i] = GROUP_AT(acred->group_info, i);
- if (i < NFS_NGROUPS)
- cred->uc_gids[i] = NOGROUP;
- }
+
+ if (acred->group_info != NULL)
+ groups = acred->group_info->ngroups;
+ if (groups > NFS_NGROUPS)
+ groups = NFS_NGROUPS;
+
+ cred->uc_gid = acred->gid;
+ for (i = 0; i < groups; i++)
+ cred->uc_gids[i] = GROUP_AT(acred->group_info, i);
+ if (i < NFS_NGROUPS)
+ cred->uc_gids[i] = NOGROUP;
return &cred->uc_base;
}
@@ -118,26 +115,21 @@ static int
unx_match(struct auth_cred *acred, struct rpc_cred *rcred, int flags)
{
struct unx_cred *cred = container_of(rcred, struct unx_cred, uc_base);
- int i;
+ unsigned int groups = 0;
+ unsigned int i;
- if (!(flags & RPCAUTH_LOOKUP_ROOTCREDS)) {
- int groups;
- if (cred->uc_uid != acred->uid
- || cred->uc_gid != acred->gid)
- return 0;
+ if (cred->uc_uid != acred->uid || cred->uc_gid != acred->gid)
+ return 0;
+ if (acred->group_info != NULL)
groups = acred->group_info->ngroups;
- if (groups > NFS_NGROUPS)
- groups = NFS_NGROUPS;
- for (i = 0; i < groups ; i++)
- if (cred->uc_gids[i] != GROUP_AT(acred->group_info, i))
- return 0;
- return 1;
- }
- return (cred->uc_uid == 0
- && cred->uc_gid == 0
- && cred->uc_gids[0] == (gid_t) NOGROUP);
+ if (groups > NFS_NGROUPS)
+ groups = NFS_NGROUPS;
+ for (i = 0; i < groups ; i++)
+ if (cred->uc_gids[i] != GROUP_AT(acred->group_info, i))
+ return 0;
+ return 1;
}
/*
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index cae219c8caeb..7db956f6e018 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -821,8 +821,10 @@ static void rpc_init_task(struct rpc_task *task, const struct rpc_task_setup *ta
/* Bind the user cred */
if (task->tk_msg.rpc_cred != NULL)
rpcauth_holdcred(task);
- else
+ else if (!(task_setup_data->flags & RPC_TASK_ROOTCREDS))
rpcauth_bindcred(task);
+ else
+ rpcauth_bind_root_cred(task);
if (task->tk_action == NULL)
rpc_call_start(task);
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-21 14:36:11 +0300