s3-auth re-create the auth context in the s3 ntlmssp server module

This removes the abstraction violation in auth_generic.c.

Andrew Bartlett

Signed-off-by: Stefan Metzmacher <metze@samba.org>

4 files changed, 8 insertions, 61 deletions

diff --git a/source3/auth/auth.c b/source3/auth/auth.c
index 4e413b1de5..1e1ede45a4 100644
--- a/source3/auth/auth.c
+++ b/source3/auth/auth.c
@@ -464,8 +464,6 @@ static NTSTATUS make_auth_context_text_list(TALLOC_CTX *mem_ctx,
 	for (method = (*auth_context)->auth_method_list; method; method = method->next) {
 		if (method->prepare_gensec) {
 			(*auth_context)->prepare_gensec = method->prepare_gensec;
-			(*auth_context)->gensec_start_mech_by_oid = method->gensec_start_mech_by_oid;
-			(*auth_context)->gensec_start_mech_by_authtype = method->gensec_start_mech_by_authtype;
 			break;
 		}
 	}
diff --git a/source3/auth/auth_generic.c b/source3/auth/auth_generic.c
index 34a499895e..13246d642f 100644
--- a/source3/auth/auth_generic.c
+++ b/source3/auth/auth_generic.c
@@ -112,66 +112,12 @@ NTSTATUS auth_generic_prepare(TALLOC_CTX *mem_ctx,
 
 NTSTATUS auth_generic_start(struct auth_generic_state *auth_ntlmssp_state, const char *oid)
 {
-	struct gensec_ntlmssp_context *gensec_ntlmssp;
-	NTSTATUS status;
-
-	if (auth_ntlmssp_state->auth_context->gensec_start_mech_by_oid) {
-		return auth_ntlmssp_state->auth_context->gensec_start_mech_by_oid(
-				auth_ntlmssp_state->gensec_security, oid);
-	}
-
-	if (strcmp(oid, GENSEC_OID_NTLMSSP) != 0) {
-		return NT_STATUS_NOT_IMPLEMENTED;
-	}
-
-	status = gensec_start_mech_by_oid(auth_ntlmssp_state->gensec_security, oid);
-	if (!NT_STATUS_IS_OK(status)) {
-		return status;
-	}
-
-	gensec_ntlmssp =
-		talloc_get_type_abort(auth_ntlmssp_state->gensec_security->private_data,
-				      struct gensec_ntlmssp_context);
-
-	gensec_ntlmssp->auth_context = talloc_move(gensec_ntlmssp, &auth_ntlmssp_state->auth_context);
-
-	return NT_STATUS_OK;
+	return gensec_start_mech_by_oid(auth_ntlmssp_state->gensec_security, oid);
 }
 
 NTSTATUS auth_generic_authtype_start(struct auth_generic_state *auth_ntlmssp_state,
 				     uint8_t auth_type, uint8_t auth_level)
 {
-	struct gensec_ntlmssp_context *gensec_ntlmssp;
-	NTSTATUS status;
-
-	if (auth_ntlmssp_state->auth_context->gensec_start_mech_by_authtype) {
-		return auth_ntlmssp_state->auth_context->gensec_start_mech_by_authtype(
-				auth_ntlmssp_state->gensec_security,
-				auth_type, auth_level);
-	}
-
-	if (auth_type != DCERPC_AUTH_TYPE_NTLMSSP) {
-		/* The caller will then free the auth_ntlmssp_state,
-		 * undoing what was done in auth_generic_prepare().
-		 *
-		 * We can't do that logic here, as
-		 * auth_ntlmssp_want_feature() may have been called in
-		 * between.
-		 */
-		return NT_STATUS_NOT_IMPLEMENTED;
-	}
-
-	status = gensec_start_mech_by_authtype(auth_ntlmssp_state->gensec_security,
-					       auth_type, auth_level);
-	if (!NT_STATUS_IS_OK(status)) {
-		return status;
-	}
-
-	gensec_ntlmssp =
-		talloc_get_type_abort(auth_ntlmssp_state->gensec_security->private_data,
-				      struct gensec_ntlmssp_context);
-
-	gensec_ntlmssp->auth_context = talloc_move(gensec_ntlmssp, &auth_ntlmssp_state->auth_context);
-
-	return NT_STATUS_OK;
+	return gensec_start_mech_by_authtype(auth_ntlmssp_state->gensec_security,
+					     auth_type, auth_level);
 }
diff --git a/source3/auth/auth_ntlmssp.c b/source3/auth/auth_ntlmssp.c
index a0deada9b8..f2b7fa4a19 100644
--- a/source3/auth/auth_ntlmssp.c
+++ b/source3/auth/auth_ntlmssp.c
@@ -242,6 +242,11 @@ static NTSTATUS gensec_ntlmssp3_server_start(struct gensec_security *gensec_secu
 		talloc_get_type_abort(gensec_security->private_data,
 				      struct gensec_ntlmssp_context);
 
+	nt_status = make_auth_context_subsystem(gensec_ntlmssp, &gensec_ntlmssp->auth_context);
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		return nt_status;
+	}
+
 	nt_status = ntlmssp_server_start(gensec_ntlmssp,
 					 is_standalone,
 					 netbios_name,
diff --git a/source3/auth/auth_samba4.c b/source3/auth/auth_samba4.c
index 119099d5dd..971f9d6898 100644
--- a/source3/auth/auth_samba4.c
+++ b/source3/auth/auth_samba4.c
@@ -185,8 +185,6 @@ static NTSTATUS auth_init_samba4(struct auth_context *auth_context,
 	result->name = "samba4";
 	result->auth = check_samba4_security;
 	result->prepare_gensec = prepare_gensec;
-	result->gensec_start_mech_by_oid = gensec_start_mech_by_oid;
-	result->gensec_start_mech_by_authtype = gensec_start_mech_by_authtype;
 
         *auth_method = result;
 	return NT_STATUS_OK;