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sunrpc: Simplify auth_unix now that everything is a kgid_t 

In unx_create_cred directly assign gids from acred->group_info
to cred->uc_gids.

In unx_match directly compare uc_gids with group_info.

Now that both group_info and unx_cred gids are stored as kgids
this is valid and the extra layer of translation can be removed.

Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman 2013-02-01 16:46:42 -08:00
parent 0b4d51b02a
commit 9132adb021
1 changed files with 4 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
net/sunrpc/auth_unix.c
View File

@ -79,11 +79,8 @@ unx_create_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags)
groups = NFS_NGROUPS;
cred->uc_gid = acred->gid;
for (i = 0; i < groups; i++) {
gid_t gid;
gid = from_kgid(&init_user_ns, GROUP_AT(acred->group_info, i));
cred->uc_gids[i] = 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] = INVALID_GID;
@ -130,12 +127,9 @@ unx_match(struct auth_cred *acred, struct rpc_cred *rcred, int flags)
groups = acred->group_info->ngroups;
if (groups > NFS_NGROUPS)
groups = NFS_NGROUPS;
for (i = 0; i < groups ; i++) {
gid_t gid;
gid = from_kgid(&init_user_ns, GROUP_AT(acred->group_info, i));
if (cred->uc_gids[i] != gid)
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)
return 0;