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-rw-r--r--source4/rpc_server/dcerpc_server.c726
1 files changed, 726 insertions, 0 deletions
diff --git a/source4/rpc_server/dcerpc_server.c b/source4/rpc_server/dcerpc_server.c
new file mode 100644
index 0000000..e072cd2
--- /dev/null
+++ b/source4/rpc_server/dcerpc_server.c
@@ -0,0 +1,726 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ server side dcerpc core code
+
+ Copyright (C) Andrew Tridgell 2003-2005
+ Copyright (C) Stefan (metze) Metzmacher 2004-2005
+
+ 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/auth.h"
+#include "auth/gensec/gensec.h"
+#include "auth/credentials/credentials.h"
+#include "rpc_server/dcerpc_server.h"
+#include "rpc_server/dcerpc_server_proto.h"
+#include "param/param.h"
+#include "samba/service_stream.h"
+#include "lib/tsocket/tsocket.h"
+#include "lib/socket/socket.h"
+#include "samba/process_model.h"
+#include "lib/util/samba_modules.h"
+#include "lib/util/tevent_ntstatus.h"
+#include "lib/util/idtree_random.h"
+
+/*
+ take a reference to an existing association group
+ */
+static struct dcesrv_assoc_group *dcesrv_assoc_group_reference(struct dcesrv_connection *conn,
+ uint32_t id)
+{
+ const struct dcesrv_endpoint *endpoint = conn->endpoint;
+ enum dcerpc_transport_t transport =
+ dcerpc_binding_get_transport(endpoint->ep_description);
+ struct dcesrv_assoc_group *assoc_group;
+ void *id_ptr = NULL;
+
+ /* find an association group given a assoc_group_id */
+ id_ptr = idr_find(conn->dce_ctx->assoc_groups_idr, id);
+ if (id_ptr == NULL) {
+ DBG_NOTICE("Failed to find assoc_group 0x%08x\n", id);
+ return NULL;
+ }
+ assoc_group = talloc_get_type_abort(id_ptr, struct dcesrv_assoc_group);
+
+ if (assoc_group->transport != transport) {
+ const char *at =
+ derpc_transport_string_by_transport(
+ assoc_group->transport);
+ const char *ct =
+ derpc_transport_string_by_transport(
+ transport);
+
+ DBG_NOTICE("assoc_group 0x%08x (transport %s) "
+ "is not available on transport %s\n",
+ id, at, ct);
+ return NULL;
+ }
+
+ return talloc_reference(conn, assoc_group);
+}
+
+static int dcesrv_assoc_group_destructor(struct dcesrv_assoc_group *assoc_group)
+{
+ int ret;
+ ret = idr_remove(assoc_group->dce_ctx->assoc_groups_idr, assoc_group->id);
+ if (ret != 0) {
+ DEBUG(0,(__location__ ": Failed to remove assoc_group 0x%08x\n",
+ assoc_group->id));
+ }
+ SMB_ASSERT(assoc_group->dce_ctx->assoc_groups_num > 0);
+ assoc_group->dce_ctx->assoc_groups_num -= 1;
+ return 0;
+}
+
+/*
+ allocate a new association group
+ */
+static struct dcesrv_assoc_group *dcesrv_assoc_group_new(struct dcesrv_connection *conn)
+{
+ struct dcesrv_context *dce_ctx = conn->dce_ctx;
+ const struct dcesrv_endpoint *endpoint = conn->endpoint;
+ enum dcerpc_transport_t transport =
+ dcerpc_binding_get_transport(endpoint->ep_description);
+ struct dcesrv_assoc_group *assoc_group;
+ int id;
+
+ assoc_group = talloc_zero(conn, struct dcesrv_assoc_group);
+ if (assoc_group == NULL) {
+ return NULL;
+ }
+
+ id = idr_get_new_random(
+ dce_ctx->assoc_groups_idr, assoc_group, 1, UINT16_MAX);
+ if (id == -1) {
+ talloc_free(assoc_group);
+ DEBUG(0,(__location__ ": Out of association groups!\n"));
+ return NULL;
+ }
+
+ assoc_group->transport = transport;
+ assoc_group->id = id;
+ assoc_group->dce_ctx = dce_ctx;
+
+ talloc_set_destructor(assoc_group, dcesrv_assoc_group_destructor);
+
+ SMB_ASSERT(dce_ctx->assoc_groups_num < UINT16_MAX);
+ dce_ctx->assoc_groups_num += 1;
+
+ return assoc_group;
+}
+
+NTSTATUS dcesrv_assoc_group_find_s4(
+ struct dcesrv_call_state *call,
+ void *private_data)
+{
+ /*
+ if provided, check the assoc_group is valid
+ */
+ if (call->pkt.u.bind.assoc_group_id != 0) {
+ call->conn->assoc_group =
+ dcesrv_assoc_group_reference(call->conn,
+ call->pkt.u.bind.assoc_group_id);
+ } else {
+ call->conn->assoc_group = dcesrv_assoc_group_new(call->conn);
+ }
+
+ /*
+ * The NETLOGON server does not use handles and so
+ * there is no need to support association groups, but
+ * we need to give back a number regardless.
+ *
+ * We have to do this when it is not run as a single process,
+ * because then it can't see the other valid association
+ * groups. We handle this generically for all endpoints not
+ * running in single process mode.
+ *
+ * We know which endpoint we are on even before checking the
+ * iface UUID, so for simplicity we enforce the same policy
+ * for all interfaces on the endpoint.
+ *
+ * This means that where NETLOGON
+ * shares an endpoint (such as ncalrpc or if 'lsa over
+ * netlogon' is set) we will still check association groups.
+ *
+ */
+
+ if (call->conn->assoc_group == NULL &&
+ !call->conn->endpoint->use_single_process) {
+ call->conn->assoc_group
+ = dcesrv_assoc_group_new(call->conn);
+ }
+
+ if (call->conn->assoc_group == NULL) {
+ /* TODO Return correct status */
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+
+ return NT_STATUS_OK;
+}
+
+void dcerpc_server_init(struct loadparm_context *lp_ctx)
+{
+ static bool initialized;
+#define _MODULE_PROTO(init) extern NTSTATUS init(TALLOC_CTX *);
+ STATIC_dcerpc_server_MODULES_PROTO;
+ init_module_fn static_init[] = { STATIC_dcerpc_server_MODULES };
+ init_module_fn *shared_init;
+
+ if (initialized) {
+ return;
+ }
+ initialized = true;
+
+ shared_init = load_samba_modules(NULL, "dcerpc_server");
+
+ run_init_functions(NULL, static_init);
+ run_init_functions(NULL, shared_init);
+
+ talloc_free(shared_init);
+}
+
+struct dcesrv_socket_context {
+ const struct dcesrv_endpoint *endpoint;
+ struct dcesrv_context *dcesrv_ctx;
+};
+
+static void dcesrv_sock_accept(struct stream_connection *srv_conn)
+{
+ NTSTATUS status;
+ struct dcesrv_socket_context *dcesrv_sock =
+ talloc_get_type(srv_conn->private_data, struct dcesrv_socket_context);
+ enum dcerpc_transport_t transport =
+ dcerpc_binding_get_transport(dcesrv_sock->endpoint->ep_description);
+ struct dcesrv_connection *dcesrv_conn = NULL;
+ int ret;
+ struct loadparm_context *lp_ctx = dcesrv_sock->dcesrv_ctx->lp_ctx;
+
+ dcesrv_cleanup_broken_connections(dcesrv_sock->dcesrv_ctx);
+
+ if (!srv_conn->session_info) {
+ status = auth_anonymous_session_info(srv_conn,
+ lp_ctx,
+ &srv_conn->session_info);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("dcesrv_sock_accept: auth_anonymous_session_info failed: %s\n",
+ nt_errstr(status)));
+ stream_terminate_connection(srv_conn, nt_errstr(status));
+ return;
+ }
+ }
+
+ /*
+ * This fills in dcesrv_conn->endpoint with the endpoint
+ * associated with the socket. From this point on we know
+ * which (group of) services we are handling, but not the
+ * specific interface.
+ */
+
+ status = dcesrv_endpoint_connect(dcesrv_sock->dcesrv_ctx,
+ srv_conn,
+ dcesrv_sock->endpoint,
+ srv_conn->session_info,
+ srv_conn->event.ctx,
+ DCESRV_CALL_STATE_FLAG_MAY_ASYNC,
+ &dcesrv_conn);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("dcesrv_sock_accept: dcesrv_endpoint_connect failed: %s\n",
+ nt_errstr(status)));
+ stream_terminate_connection(srv_conn, nt_errstr(status));
+ return;
+ }
+
+ dcesrv_conn->transport.private_data = srv_conn;
+ dcesrv_conn->transport.report_output_data = dcesrv_sock_report_output_data;
+ dcesrv_conn->transport.terminate_connection = dcesrv_transport_terminate_connection_s4;
+
+ TALLOC_FREE(srv_conn->event.fde);
+
+ dcesrv_conn->send_queue = tevent_queue_create(dcesrv_conn, "dcesrv send queue");
+ if (!dcesrv_conn->send_queue) {
+ status = NT_STATUS_NO_MEMORY;
+ DEBUG(0,("dcesrv_sock_accept: tevent_queue_create(%s)\n",
+ nt_errstr(status)));
+ stream_terminate_connection(srv_conn, nt_errstr(status));
+ return;
+ }
+
+ if (transport == NCACN_NP) {
+ dcesrv_conn->stream = talloc_move(dcesrv_conn,
+ &srv_conn->tstream);
+ } else {
+ ret = tstream_bsd_existing_socket(dcesrv_conn,
+ socket_get_fd(srv_conn->socket),
+ &dcesrv_conn->stream);
+ if (ret == -1) {
+ status = map_nt_error_from_unix_common(errno);
+ DEBUG(0, ("dcesrv_sock_accept: "
+ "failed to setup tstream: %s\n",
+ nt_errstr(status)));
+ stream_terminate_connection(srv_conn, nt_errstr(status));
+ return;
+ }
+ socket_set_flags(srv_conn->socket, SOCKET_FLAG_NOCLOSE);
+ /* as server we want to fail early */
+ tstream_bsd_fail_readv_first_error(dcesrv_conn->stream, true);
+ }
+
+ dcesrv_conn->local_address = srv_conn->local_address;
+ dcesrv_conn->remote_address = srv_conn->remote_address;
+
+ if (transport == NCALRPC) {
+ uid_t uid;
+ gid_t gid;
+ int sock_fd;
+
+ sock_fd = socket_get_fd(srv_conn->socket);
+ if (sock_fd == -1) {
+ stream_terminate_connection(
+ srv_conn, "socket_get_fd failed\n");
+ return;
+ }
+
+ ret = getpeereid(sock_fd, &uid, &gid);
+ if (ret == -1) {
+ status = map_nt_error_from_unix_common(errno);
+ DEBUG(0, ("dcesrv_sock_accept: "
+ "getpeereid() failed for NCALRPC: %s\n",
+ nt_errstr(status)));
+ stream_terminate_connection(srv_conn, nt_errstr(status));
+ return;
+ }
+ if (uid == dcesrv_conn->dce_ctx->initial_euid) {
+ struct tsocket_address *r = NULL;
+
+ ret = tsocket_address_unix_from_path(dcesrv_conn,
+ AS_SYSTEM_MAGIC_PATH_TOKEN,
+ &r);
+ if (ret == -1) {
+ status = map_nt_error_from_unix_common(errno);
+ DEBUG(0, ("dcesrv_sock_accept: "
+ "tsocket_address_unix_from_path() failed for NCALRPC: %s\n",
+ nt_errstr(status)));
+ stream_terminate_connection(srv_conn, nt_errstr(status));
+ return;
+ }
+ dcesrv_conn->remote_address = r;
+ }
+ }
+
+ srv_conn->private_data = dcesrv_conn;
+
+ status = dcesrv_connection_loop_start(dcesrv_conn);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("dcesrv_sock_accept: dcerpc_read_fragment_buffer_send(%s)\n",
+ nt_errstr(status)));
+ stream_terminate_connection(srv_conn, nt_errstr(status));
+ return;
+ }
+
+ return;
+}
+
+static void dcesrv_sock_recv(struct stream_connection *conn, uint16_t flags)
+{
+ struct dcesrv_connection *dce_conn = talloc_get_type(conn->private_data,
+ struct dcesrv_connection);
+ dcesrv_terminate_connection(dce_conn, "dcesrv_sock_recv triggered");
+}
+
+static void dcesrv_sock_send(struct stream_connection *conn, uint16_t flags)
+{
+ struct dcesrv_connection *dce_conn = talloc_get_type(conn->private_data,
+ struct dcesrv_connection);
+ dcesrv_terminate_connection(dce_conn, "dcesrv_sock_send triggered");
+}
+
+
+static const struct stream_server_ops dcesrv_stream_ops = {
+ .name = "rpc",
+ .accept_connection = dcesrv_sock_accept,
+ .recv_handler = dcesrv_sock_recv,
+ .send_handler = dcesrv_sock_send,
+};
+
+static NTSTATUS dcesrv_add_ep_unix(struct dcesrv_context *dce_ctx,
+ struct loadparm_context *lp_ctx,
+ struct dcesrv_endpoint *e,
+ struct tevent_context *event_ctx,
+ const struct model_ops *model_ops,
+ void *process_context)
+{
+ struct dcesrv_socket_context *dcesrv_sock;
+ uint16_t port = 1;
+ NTSTATUS status;
+ const char *endpoint;
+
+ dcesrv_sock = talloc_zero(event_ctx, struct dcesrv_socket_context);
+ NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
+
+ /* remember the endpoint of this socket */
+ dcesrv_sock->endpoint = e;
+ dcesrv_sock->dcesrv_ctx = talloc_reference(dcesrv_sock, dce_ctx);
+
+ endpoint = dcerpc_binding_get_string_option(e->ep_description, "endpoint");
+
+ status = stream_setup_socket(dcesrv_sock, event_ctx, lp_ctx,
+ model_ops, &dcesrv_stream_ops,
+ "unix", endpoint, &port,
+ lpcfg_socket_options(lp_ctx),
+ dcesrv_sock, process_context);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("service_setup_stream_socket(path=%s) failed - %s\n",
+ endpoint, nt_errstr(status)));
+ }
+
+ return status;
+}
+
+static NTSTATUS dcesrv_add_ep_ncalrpc(struct dcesrv_context *dce_ctx,
+ struct loadparm_context *lp_ctx,
+ struct dcesrv_endpoint *e,
+ struct tevent_context *event_ctx,
+ const struct model_ops *model_ops,
+ void *process_context)
+{
+ struct dcesrv_socket_context *dcesrv_sock;
+ uint16_t port = 1;
+ char *full_path;
+ NTSTATUS status;
+ const char *endpoint;
+
+ endpoint = dcerpc_binding_get_string_option(e->ep_description, "endpoint");
+
+ if (endpoint == NULL) {
+ /*
+ * No identifier specified: use DEFAULT.
+ *
+ * TODO: DO NOT hardcode this value anywhere else. Rather, specify
+ * no endpoint and let the epmapper worry about it.
+ */
+ endpoint = "DEFAULT";
+ status = dcerpc_binding_set_string_option(e->ep_description,
+ "endpoint",
+ endpoint);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("dcerpc_binding_set_string_option() failed - %s\n",
+ nt_errstr(status)));
+ return status;
+ }
+ }
+
+ full_path = talloc_asprintf(dce_ctx, "%s/%s", lpcfg_ncalrpc_dir(lp_ctx),
+ endpoint);
+
+ dcesrv_sock = talloc_zero(event_ctx, struct dcesrv_socket_context);
+ NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
+
+ /* remember the endpoint of this socket */
+ dcesrv_sock->endpoint = e;
+ dcesrv_sock->dcesrv_ctx = talloc_reference(dcesrv_sock, dce_ctx);
+
+ status = stream_setup_socket(dcesrv_sock, event_ctx, lp_ctx,
+ model_ops, &dcesrv_stream_ops,
+ "unix", full_path, &port,
+ lpcfg_socket_options(lp_ctx),
+ dcesrv_sock, process_context);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("service_setup_stream_socket(identifier=%s,path=%s) failed - %s\n",
+ endpoint, full_path, nt_errstr(status)));
+ }
+ return status;
+}
+
+static NTSTATUS dcesrv_add_ep_np(struct dcesrv_context *dce_ctx,
+ struct loadparm_context *lp_ctx,
+ struct dcesrv_endpoint *e,
+ struct tevent_context *event_ctx,
+ const struct model_ops *model_ops,
+ void *process_context)
+{
+ struct dcesrv_socket_context *dcesrv_sock;
+ NTSTATUS status;
+ const char *endpoint;
+
+ endpoint = dcerpc_binding_get_string_option(e->ep_description, "endpoint");
+ if (endpoint == NULL) {
+ DEBUG(0, ("Endpoint mandatory for named pipes\n"));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ dcesrv_sock = talloc_zero(event_ctx, struct dcesrv_socket_context);
+ NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
+
+ /* remember the endpoint of this socket */
+ dcesrv_sock->endpoint = e;
+ dcesrv_sock->dcesrv_ctx = talloc_reference(dcesrv_sock, dce_ctx);
+
+ status = tstream_setup_named_pipe(dce_ctx, event_ctx, lp_ctx,
+ model_ops, &dcesrv_stream_ops,
+ endpoint,
+ dcesrv_sock, process_context);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("stream_setup_named_pipe(pipe=%s) failed - %s\n",
+ endpoint, nt_errstr(status)));
+ return status;
+ }
+
+ return NT_STATUS_OK;
+}
+
+/*
+ add a socket address to the list of events, one event per dcerpc endpoint
+*/
+static NTSTATUS add_socket_rpc_tcp_iface(struct dcesrv_context *dce_ctx,
+ struct dcesrv_endpoint *e,
+ struct tevent_context *event_ctx,
+ const struct model_ops *model_ops,
+ const char *address,
+ void *process_context)
+{
+ struct dcesrv_socket_context *dcesrv_sock;
+ uint16_t port = 0;
+ NTSTATUS status;
+ const char *endpoint;
+ char port_str[6];
+
+ endpoint = dcerpc_binding_get_string_option(e->ep_description, "endpoint");
+ if (endpoint != NULL) {
+ port = atoi(endpoint);
+ }
+
+ dcesrv_sock = talloc_zero(event_ctx, struct dcesrv_socket_context);
+ NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
+
+ /* remember the endpoint of this socket */
+ dcesrv_sock->endpoint = e;
+ dcesrv_sock->dcesrv_ctx = talloc_reference(dcesrv_sock, dce_ctx);
+
+ status = stream_setup_socket(dcesrv_sock, event_ctx, dce_ctx->lp_ctx,
+ model_ops, &dcesrv_stream_ops,
+ "ip", address, &port,
+ lpcfg_socket_options(dce_ctx->lp_ctx),
+ dcesrv_sock, process_context);
+ if (!NT_STATUS_IS_OK(status)) {
+ struct dcesrv_if_list *iface;
+ DEBUG(0,("service_setup_stream_socket(address=%s,port=%u) for ",
+ address, port));
+ for (iface = e->interface_list; iface; iface = iface->next) {
+ DEBUGADD(0, ("%s ", iface->iface->name));
+ }
+ DEBUGADD(0, ("failed - %s\n",
+ nt_errstr(status)));
+ return status;
+ }
+
+ snprintf(port_str, sizeof(port_str), "%u", port);
+
+ status = dcerpc_binding_set_string_option(e->ep_description,
+ "endpoint", port_str);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("dcerpc_binding_set_string_option(endpoint, %s) failed - %s\n",
+ port_str, nt_errstr(status)));
+ return status;
+ } else {
+ struct dcesrv_if_list *iface;
+ DEBUG(4,("Successfully listening on ncacn_ip_tcp endpoint [%s]:[%s] for ",
+ address, port_str));
+ for (iface = e->interface_list; iface; iface = iface->next) {
+ DEBUGADD(4, ("%s ", iface->iface->name));
+ }
+ DEBUGADD(4, ("\n"));
+ }
+
+ return NT_STATUS_OK;
+}
+
+#include "lib/socket/netif.h" /* Included here to work around the fact that socket_wrapper redefines bind() */
+
+static NTSTATUS dcesrv_add_ep_tcp(struct dcesrv_context *dce_ctx,
+ struct loadparm_context *lp_ctx,
+ struct dcesrv_endpoint *e,
+ struct tevent_context *event_ctx,
+ const struct model_ops *model_ops,
+ void *process_context)
+{
+ NTSTATUS status;
+
+ /* Add TCP/IP sockets */
+ if (lpcfg_interfaces(lp_ctx) && lpcfg_bind_interfaces_only(lp_ctx)) {
+ int num_interfaces;
+ int i;
+ struct interface *ifaces;
+
+ load_interface_list(dce_ctx, lp_ctx, &ifaces);
+
+ num_interfaces = iface_list_count(ifaces);
+ for(i = 0; i < num_interfaces; i++) {
+ const char *address = iface_list_n_ip(ifaces, i);
+ status = add_socket_rpc_tcp_iface(dce_ctx, e, event_ctx,
+ model_ops, address,
+ process_context);
+ NT_STATUS_NOT_OK_RETURN(status);
+ }
+ } else {
+ char **wcard;
+ size_t i;
+ size_t num_binds = 0;
+ wcard = iface_list_wildcard(dce_ctx);
+ NT_STATUS_HAVE_NO_MEMORY(wcard);
+ for (i=0; wcard[i]; i++) {
+ status = add_socket_rpc_tcp_iface(dce_ctx, e, event_ctx,
+ model_ops, wcard[i],
+ process_context);
+ if (NT_STATUS_IS_OK(status)) {
+ num_binds++;
+ }
+ }
+ talloc_free(wcard);
+ if (num_binds == 0) {
+ return NT_STATUS_INVALID_PARAMETER_MIX;
+ }
+ }
+
+ return NT_STATUS_OK;
+}
+
+NTSTATUS dcesrv_add_ep(struct dcesrv_context *dce_ctx,
+ struct loadparm_context *lp_ctx,
+ struct dcesrv_endpoint *e,
+ struct tevent_context *event_ctx,
+ const struct model_ops *model_ops,
+ void *process_context)
+{
+ enum dcerpc_transport_t transport =
+ dcerpc_binding_get_transport(e->ep_description);
+
+ switch (transport) {
+ case NCACN_UNIX_STREAM:
+ return dcesrv_add_ep_unix(dce_ctx, lp_ctx, e, event_ctx,
+ model_ops, process_context);
+
+ case NCALRPC:
+ return dcesrv_add_ep_ncalrpc(dce_ctx, lp_ctx, e, event_ctx,
+ model_ops, process_context);
+
+ case NCACN_IP_TCP:
+ return dcesrv_add_ep_tcp(dce_ctx, lp_ctx, e, event_ctx,
+ model_ops, process_context);
+
+ case NCACN_NP:
+ return dcesrv_add_ep_np(dce_ctx, lp_ctx, e, event_ctx,
+ model_ops, process_context);
+
+ default:
+ return NT_STATUS_NOT_SUPPORTED;
+ }
+}
+
+_PUBLIC_ struct imessaging_context *dcesrv_imessaging_context(
+ struct dcesrv_connection *conn)
+{
+ struct stream_connection *srv_conn =
+ talloc_get_type_abort(conn->transport.private_data,
+ struct stream_connection);
+ return srv_conn->msg_ctx;
+}
+
+_PUBLIC_ struct server_id dcesrv_server_id(struct dcesrv_connection *conn)
+{
+ struct stream_connection *srv_conn =
+ talloc_get_type_abort(conn->transport.private_data,
+ struct stream_connection);
+ return srv_conn->server_id;
+}
+
+void log_successful_dcesrv_authz_event(
+ struct dcesrv_call_state *call,
+ void *private_data)
+{
+ struct dcesrv_auth *auth = call->auth_state;
+ enum dcerpc_transport_t transport =
+ dcerpc_binding_get_transport(call->conn->endpoint->ep_description);
+ struct imessaging_context *imsg_ctx =
+ dcesrv_imessaging_context(call->conn);
+ const char *auth_type = derpc_transport_string_by_transport(transport);
+ const char *transport_protection = AUTHZ_TRANSPORT_PROTECTION_NONE;
+
+ if (transport == NCACN_NP) {
+ transport_protection = AUTHZ_TRANSPORT_PROTECTION_SMB;
+ }
+
+ /*
+ * Log the authorization to this RPC interface. This
+ * covered ncacn_np pass-through auth, and anonymous
+ * DCE/RPC (eg epmapper, netlogon etc)
+ */
+ log_successful_authz_event(imsg_ctx,
+ call->conn->dce_ctx->lp_ctx,
+ call->conn->remote_address,
+ call->conn->local_address,
+ "DCE/RPC",
+ auth_type,
+ transport_protection,
+ auth->session_info,
+ NULL /* client_audit_info */,
+ NULL /* server_audit_info */);
+
+ auth->auth_audited = true;
+}
+
+NTSTATUS dcesrv_gensec_prepare(
+ TALLOC_CTX *mem_ctx,
+ struct dcesrv_call_state *call,
+ struct gensec_security **out,
+ void *private_data)
+{
+ struct cli_credentials *server_creds = NULL;
+ struct imessaging_context *imsg_ctx =
+ dcesrv_imessaging_context(call->conn);
+ bool ok;
+
+ server_creds = cli_credentials_init_server(call->auth_state,
+ call->conn->dce_ctx->lp_ctx);
+ if (server_creds == NULL) {
+ DEBUG(1, ("Failed to init server credentials\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+ /* This is required for ncalrpc_as_system. */
+ ok = cli_credentials_set_kerberos_state(server_creds,
+ CRED_USE_KERBEROS_DESIRED,
+ CRED_SPECIFIED);
+ if (!ok) {
+ DBG_WARNING("Failed to set kerberos state\n");
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
+ return samba_server_gensec_start(mem_ctx,
+ call->event_ctx,
+ imsg_ctx,
+ call->conn->dce_ctx->lp_ctx,
+ server_creds,
+ NULL,
+ out);
+}
+
+void dcesrv_transport_terminate_connection_s4(struct dcesrv_connection *dce_conn,
+ const char *reason)
+{
+ struct stream_connection *srv_conn =
+ talloc_get_type_abort(dce_conn->transport.private_data,
+ struct stream_connection);
+ stream_terminate_connection(srv_conn, reason);
+}