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| author | Eric W. Biederman <ebiederm@xmission.com> | 2013-02-01 17:18:04 -0800 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2013-02-13 06:15:20 -0800 |
| commit | e572fc739822ad779493b8a72bd27f2101fc3373 (patch) | |
| tree | 0178825a3990b0b316e7ecd2830cdcfbc3451a5e /net/sunrpc/auth_unix.c | |
| parent | cdba321e291f0fbf5abda4d88340292b858e3d4d (diff) | |
| download | lwn-e572fc739822ad779493b8a72bd27f2101fc3373.tar.gz lwn-e572fc739822ad779493b8a72bd27f2101fc3373.zip | |
sunrpc: Use gid_valid to test for gid != INVALID_GID
In auth unix there are a couple of places INVALID_GID is used a
sentinel to mark the end of uc_gids array. Use gid_valid
as a type safe way to verify we have not hit the end of
valid data in the array.
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'net/sunrpc/auth_unix.c')
| -rw-r--r-- | net/sunrpc/auth_unix.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/net/sunrpc/auth_unix.c b/net/sunrpc/auth_unix.c index 55b6ca6fbbd3..c434fde2079b 100644 --- a/net/sunrpc/auth_unix.c +++ b/net/sunrpc/auth_unix.c @@ -131,8 +131,7 @@ unx_match(struct auth_cred *acred, struct rpc_cred *rcred, int flags) for (i = 0; i < groups ; i++) if (!gid_eq(cred->uc_gids[i], GROUP_AT(acred->group_info, i))) return 0; - if (groups < NFS_NGROUPS && - cred->uc_gids[groups] != INVALID_GID) + if (groups < NFS_NGROUPS && gid_valid(cred->uc_gids[groups])) return 0; return 1; } @@ -161,7 +160,7 @@ 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] != INVALID_GID; i++) + for (i = 0; i < 16 && gid_valid(cred->uc_gids[i]); i++) *p++ = htonl((u32) cred->uc_gids[i]); *hold = htonl(p - hold - 1); /* gid array length */ *base = htonl((p - base - 1) << 2); /* cred length */ |