sunrpc: Use userns friendly constants.

Instead of (uid_t)0 use GLOBAL_ROOT_UID.
Instead of (gid_t)0 use GLOBAL_ROOT_GID.
Instead of (uid_t)-1 use INVALID_UID
Instead of (gid_t)-1 use INVALID_GID.
Instead of NOGROUP use INVALID_GID.

Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>

4 files changed, 9 insertions, 9 deletions

diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c
index b5c067bccc45..4cd0ecfe9837 100644
--- a/net/sunrpc/auth.c
+++ b/net/sunrpc/auth.c
@@ -519,8 +519,8 @@ rpcauth_bind_root_cred(struct rpc_task *task, int lookupflags)
 {
         struct rpc_auth *auth = task->tk_client->cl_auth;
         struct auth_cred acred = {
-                .uid = 0,
-                .gid = 0,
+                .uid = GLOBAL_ROOT_UID,
+                .gid = GLOBAL_ROOT_GID,
         };
 
         dprintk("RPC: %5u looking up %s cred\n",
diff --git a/net/sunrpc/auth_generic.c b/net/sunrpc/auth_generic.c
index 6ed6f201b022..9d2e0b045596 100644
--- a/net/sunrpc/auth_generic.c
+++ b/net/sunrpc/auth_generic.c
@@ -18,8 +18,8 @@
 # define RPCDBG_FACILITY        RPCDBG_AUTH
 #endif
 
-#define RPC_MACHINE_CRED_USERID         ((uid_t)0)
-#define RPC_MACHINE_CRED_GROUPID        ((gid_t)0)
+#define RPC_MACHINE_CRED_USERID         GLOBAL_ROOT_UID
+#define RPC_MACHINE_CRED_GROUPID        GLOBAL_ROOT_GID
 
 struct generic_cred {
         struct rpc_cred gc_base;
diff --git a/net/sunrpc/auth_unix.c b/net/sunrpc/auth_unix.c
index 52c5abdee211..2f8627082fa7 100644
--- a/net/sunrpc/auth_unix.c
+++ b/net/sunrpc/auth_unix.c
@@ -85,7 +85,7 @@ unx_create_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags)
                 cred->uc_gids[i] = gid;
         }
         if (i < NFS_NGROUPS)
-                cred->uc_gids[i] = NOGROUP;
+                cred->uc_gids[i] = INVALID_GID;
 
         return &cred->uc_base;
 }
@@ -137,7 +137,7 @@ unx_match(struct auth_cred *acred, struct rpc_cred *rcred, int flags)
                         return 0;
         }
         if (groups < NFS_NGROUPS &&
-            cred->uc_gids[groups] != NOGROUP)
+            cred->uc_gids[groups] != INVALID_GID)
                 return 0;
         return 1;
 }
@@ -166,7 +166,7 @@ unx_marshal(struct rpc_task *task, __be32 *p)
         *p++ = htonl((u32) cred->uc_uid);
         *p++ = htonl((u32) cred->uc_gid);
         hold = p++;
-        for (i = 0; i < 16 && cred->uc_gids[i] != (gid_t) NOGROUP; i++)
+        for (i = 0; i < 16 && cred->uc_gids[i] != INVALID_GID; i++)
                 *p++ = htonl((u32) cred->uc_gids[i]);
         *hold = htonl(p - hold - 1);            /* gid array length */
         *base = htonl((p - base - 1) << 2);     /* cred length */
diff --git a/net/sunrpc/svcauth_unix.c b/net/sunrpc/svcauth_unix.c
index 4d0129203733..c8cb5dc8d871 100644
--- a/net/sunrpc/svcauth_unix.c
+++ b/net/sunrpc/svcauth_unix.c
@@ -750,8 +750,8 @@ svcauth_null_accept(struct svc_rqst *rqstp, __be32 *authp)
         }
 
         /* Signal that mapping to nobody uid/gid is required */
-        cred->cr_uid = (uid_t) -1;
-        cred->cr_gid = (gid_t) -1;
+        cred->cr_uid = INVALID_UID;
+        cred->cr_gid = INVALID_GID;
         cred->cr_group_info = groups_alloc(0);
         if (cred->cr_group_info == NULL)
                 return SVC_CLOSE; /* kmalloc failure - client must retry */