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authorBryan Schumaker <bjschuma@netapp.com>2011-03-24 17:12:30 +0000
committerTrond Myklebust <Trond.Myklebust@netapp.com>2011-03-24 13:52:42 -0400
commit7ebb931598cd95cccea10d4bc4c0123a464ea565 (patch)
treedec1af6eefdbbc3ce42346d7c6d407088eaf509e /net/sunrpc/auth_gss
parent5a5ea0d485c9715c86bf858bbdc5f6d373b3db88 (diff)
NFS: use secinfo when crossing mountpoints
A submount may use different security than the parent mount does. We should figure out what sec flavor the submount uses at mount time. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc/auth_gss')
-rw-r--r--net/sunrpc/auth_gss/gss_mech_switch.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/net/sunrpc/auth_gss/gss_mech_switch.c b/net/sunrpc/auth_gss/gss_mech_switch.c
index 8b4061049d7..6c844b01a1d 100644
--- a/net/sunrpc/auth_gss/gss_mech_switch.c
+++ b/net/sunrpc/auth_gss/gss_mech_switch.c
@@ -160,6 +160,28 @@ gss_mech_get_by_name(const char *name)
EXPORT_SYMBOL_GPL(gss_mech_get_by_name);
+struct gss_api_mech *
+gss_mech_get_by_OID(struct xdr_netobj *obj)
+{
+ struct gss_api_mech *pos, *gm = NULL;
+
+ spin_lock(&registered_mechs_lock);
+ list_for_each_entry(pos, &registered_mechs, gm_list) {
+ if (obj->len == pos->gm_oid.len) {
+ if (0 == memcmp(obj->data, pos->gm_oid.data, obj->len)) {
+ if (try_module_get(pos->gm_owner))
+ gm = pos;
+ break;
+ }
+ }
+ }
+ spin_unlock(&registered_mechs_lock);
+ return gm;
+
+}
+
+EXPORT_SYMBOL_GPL(gss_mech_get_by_OID);
+
static inline int
mech_supports_pseudoflavor(struct gss_api_mech *gm, u32 pseudoflavor)
{