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authorHoward Chu <hyc@symas.com>2013-09-17 13:09:50 -0700
committerNadezhda Ivanova <nivanova@samba.org>2013-09-18 19:47:55 +0200
commit6bf59b03d72b94b71e53fc2404c11e0d237e41b2 (patch)
tree6e0ad1294191c597b89d3657b0830e23faf6890b /auth/gensec/external.c
parentb3bb3040364d4b8a497ced3e758fc81f24924db9 (diff)
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Add SASL/EXTERNAL gensec module
Signed-off-by: Howard Chu <hyc@symas.com> Reviewed-by: Andrew Bartlett <abartlet@samba.org> Reviewed-by: Nadezhda Ivanova <nivanova@symas.com>
Diffstat (limited to 'auth/gensec/external.c')
-rw-r--r--auth/gensec/external.c82
1 files changed, 82 insertions, 0 deletions
diff --git a/auth/gensec/external.c b/auth/gensec/external.c
new file mode 100644
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+++ b/auth/gensec/external.c
@@ -0,0 +1,82 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ SASL/EXTERNAL authentication.
+
+ Copyright (C) Howard Chu <hyc@symas.com> 2013
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "auth/credentials/credentials.h"
+#include "auth/gensec/gensec.h"
+#include "auth/gensec/gensec_internal.h"
+#include "auth/gensec/gensec_proto.h"
+#include "auth/gensec/gensec_toplevel_proto.h"
+
+/* SASL/EXTERNAL is essentially a no-op; it is only usable when the transport
+ * layer is already mutually authenticated.
+ */
+
+NTSTATUS gensec_external_init(void);
+
+static NTSTATUS gensec_external_start(struct gensec_security *gensec_security)
+{
+ if (gensec_security->want_features & GENSEC_FEATURE_SIGN)
+ return NT_STATUS_INVALID_PARAMETER;
+ if (gensec_security->want_features & GENSEC_FEATURE_SEAL)
+ return NT_STATUS_INVALID_PARAMETER;
+
+ return NT_STATUS_OK;
+}
+
+static NTSTATUS gensec_external_update(struct gensec_security *gensec_security,
+ TALLOC_CTX *out_mem_ctx,
+ struct tevent_context *ev,
+ const DATA_BLOB in, DATA_BLOB *out)
+{
+ *out = data_blob_talloc(out_mem_ctx, "", 0);
+ return NT_STATUS_OK;
+}
+
+/* We have no features */
+static bool gensec_external_have_feature(struct gensec_security *gensec_security,
+ uint32_t feature)
+{
+ return false;
+}
+
+static const struct gensec_security_ops gensec_external_ops = {
+ .name = "sasl-EXTERNAL",
+ .sasl_name = "EXTERNAL",
+ .client_start = gensec_external_start,
+ .update = gensec_external_update,
+ .have_feature = gensec_external_have_feature,
+ .enabled = true,
+ .priority = GENSEC_EXTERNAL
+};
+
+
+NTSTATUS gensec_external_init(void)
+{
+ NTSTATUS ret;
+
+ ret = gensec_register(&gensec_external_ops);
+ if (!NT_STATUS_IS_OK(ret)) {
+ DEBUG(0,("Failed to register '%s' gensec backend!\n",
+ gensec_external_ops.name));
+ }
+ return ret;
+}