diff options
author | Chuck Lever <chuck.lever@oracle.com> | 2013-03-16 15:55:10 -0400 |
---|---|---|
committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-03-29 15:43:33 -0400 |
commit | a77c806fb9d097bb7733b64207cf52fc2c6438bb (patch) | |
tree | 198d62d0436f22e7288142eb7341880a1b99ee3e /net/sunrpc | |
parent | 83523d083a045a2069e5f3443d2e4f810a6e6d9a (diff) |
SUNRPC: Refactor nfsd4_do_encode_secinfo()
Clean up. This matches a similar API for the client side, and
keeps ULP fingers out the of the GSS mech switch.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Acked-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc')
-rw-r--r-- | net/sunrpc/auth.c | 35 | ||||
-rw-r--r-- | net/sunrpc/auth_gss/auth_gss.c | 1 | ||||
-rw-r--r-- | net/sunrpc/auth_gss/gss_mech_switch.c | 35 |
3 files changed, 69 insertions, 2 deletions
diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c index 9b81be8d994..2bc0cc2196e 100644 --- a/net/sunrpc/auth.c +++ b/net/sunrpc/auth.c @@ -159,6 +159,41 @@ rpcauth_get_pseudoflavor(rpc_authflavor_t flavor, struct rpcsec_gss_info *info) EXPORT_SYMBOL_GPL(rpcauth_get_pseudoflavor); /** + * rpcauth_get_gssinfo - find GSS tuple matching a GSS pseudoflavor + * @pseudoflavor: GSS pseudoflavor to match + * @info: rpcsec_gss_info structure to fill in + * + * Returns zero and fills in "info" if pseudoflavor matches a + * supported mechanism. + */ +int +rpcauth_get_gssinfo(rpc_authflavor_t pseudoflavor, struct rpcsec_gss_info *info) +{ + rpc_authflavor_t flavor = pseudoflavor_to_flavor(pseudoflavor); + const struct rpc_authops *ops; + int result; + + ops = auth_flavors[flavor]; + if (ops == NULL) + request_module("rpc-auth-%u", flavor); + spin_lock(&rpc_authflavor_lock); + ops = auth_flavors[flavor]; + if (ops == NULL || !try_module_get(ops->owner)) { + spin_unlock(&rpc_authflavor_lock); + return -ENOENT; + } + spin_unlock(&rpc_authflavor_lock); + + result = -ENOENT; + if (ops->flavor2info != NULL) + result = ops->flavor2info(pseudoflavor, info); + + module_put(ops->owner); + return result; +} +EXPORT_SYMBOL_GPL(rpcauth_get_gssinfo); + +/** * rpcauth_list_flavors - discover registered flavors and pseudoflavors * @array: array to fill in * @size: size of "array" diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c index a7420076ef3..51415b07174 100644 --- a/net/sunrpc/auth_gss/auth_gss.c +++ b/net/sunrpc/auth_gss/auth_gss.c @@ -1642,6 +1642,7 @@ static const struct rpc_authops authgss_ops = { .pipes_destroy = gss_pipes_dentries_destroy, .list_pseudoflavors = gss_mech_list_pseudoflavors, .info2flavor = gss_mech_info2flavor, + .flavor2info = gss_mech_flavor2info, }; static const struct rpc_credops gss_credops = { diff --git a/net/sunrpc/auth_gss/gss_mech_switch.c b/net/sunrpc/auth_gss/gss_mech_switch.c index 81fb6f3e242..deaa7ae81cd 100644 --- a/net/sunrpc/auth_gss/gss_mech_switch.c +++ b/net/sunrpc/auth_gss/gss_mech_switch.c @@ -240,8 +240,6 @@ gss_mech_get_by_pseudoflavor(u32 pseudoflavor) return gm; } -EXPORT_SYMBOL_GPL(gss_mech_get_by_pseudoflavor); - /** * gss_mech_list_pseudoflavors - Discover registered GSS pseudoflavors * @array: array to fill in @@ -315,6 +313,39 @@ rpc_authflavor_t gss_mech_info2flavor(struct rpcsec_gss_info *info) return pseudoflavor; } +/** + * gss_mech_flavor2info - look up a GSS tuple for a given pseudoflavor + * @pseudoflavor: GSS pseudoflavor to match + * @info: rpcsec_gss_info structure to fill in + * + * Returns zero and fills in "info" if pseudoflavor matches a + * supported mechanism. Otherwise a negative errno is returned. + */ +int gss_mech_flavor2info(rpc_authflavor_t pseudoflavor, + struct rpcsec_gss_info *info) +{ + struct gss_api_mech *gm; + int i; + + gm = gss_mech_get_by_pseudoflavor(pseudoflavor); + if (gm == NULL) + return -ENOENT; + + for (i = 0; i < gm->gm_pf_num; i++) { + if (gm->gm_pfs[i].pseudoflavor == pseudoflavor) { + memcpy(info->oid.data, gm->gm_oid.data, gm->gm_oid.len); + info->oid.len = gm->gm_oid.len; + info->qop = gm->gm_pfs[i].qop; + info->service = gm->gm_pfs[i].service; + gss_mech_put(gm); + return 0; + } + } + + gss_mech_put(gm); + return -ENOENT; +} + u32 gss_pseudoflavor_to_service(struct gss_api_mech *gm, u32 pseudoflavor) { |