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authorTrond Myklebust <Trond.Myklebust@netapp.com>2008-03-12 12:12:16 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2008-03-14 13:42:32 -0400
commitaf093835774931de898a9baf7b4041fa0d100f77 (patch)
treef7617eb4556ead8615f6c26d8b02fcec8f64c6b3 /net/sunrpc/auth_unix.c
parent25337fdc85951dfeac944f16cb565904c619077a (diff)
downloadlinux-af093835774931de898a9baf7b4041fa0d100f77.tar.gz
SUNRPC: Fix RPCAUTH_LOOKUP_ROOTCREDS
The current RPCAUTH_LOOKUP_ROOTCREDS flag only works for AUTH_SYS authentication, and then only as a special case in the code. This patch removes the auth_sys special casing, and replaces it with generic code. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc/auth_unix.c')
-rw-r--r--net/sunrpc/auth_unix.c56
1 files changed, 24 insertions, 32 deletions
diff --git a/net/sunrpc/auth_unix.c b/net/sunrpc/auth_unix.c
index 5ed91e5bcee..b763710d3db 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;
}
/*