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author | Bryan Schumaker <bjschuma@netapp.com> | 2011-03-24 17:12:30 +0000 |
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committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-03-24 13:52:42 -0400 |
commit | 7ebb931598cd95cccea10d4bc4c0123a464ea565 (patch) | |
tree | dec1af6eefdbbc3ce42346d7c6d407088eaf509e /net/sunrpc/auth_gss/gss_mech_switch.c | |
parent | 5a5ea0d485c9715c86bf858bbdc5f6d373b3db88 (diff) | |
download | linux-7ebb931598cd95cccea10d4bc4c0123a464ea565.tar.bz2 |
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/gss_mech_switch.c')
-rw-r--r-- | net/sunrpc/auth_gss/gss_mech_switch.c | 22 |
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 8b4061049d76..6c844b01a1d1 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(®istered_mechs_lock); + list_for_each_entry(pos, ®istered_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(®istered_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) { |