2 Unix SMB/CIFS implementation.
4 server side dcerpc using various kinds of sockets (tcp, unix domain)
6 Copyright (C) Andrew Tridgell 2003
7 Copyright (C) Stefan (metze) Metzmacher 2004-2005
8 Copyright (C) Jelmer Vernooij 2004
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 #include "lib/socket/socket.h"
27 #include "lib/events/events.h"
28 #include "rpc_server/dcerpc_server.h"
29 #include "smbd/service_stream.h"
30 #include "smbd/service.h"
31 #include "lib/messaging/irpc.h"
32 #include "system/network.h"
33 #include "netif/netif.h"
35 struct dcesrv_socket_context {
36 const struct dcesrv_endpoint *endpoint;
37 struct dcesrv_context *dcesrv_ctx;
41 write_fn callback for dcesrv_output()
43 static NTSTATUS dcerpc_write_fn(void *private_data, DATA_BLOB *out, size_t *nwritten)
46 struct socket_context *sock = talloc_get_type(private_data, struct socket_context);
49 status = socket_send(sock, out, &sendlen, 0);
50 NT_STATUS_IS_ERR_RETURN(status);
56 static void dcesrv_terminate_connection(struct dcesrv_connection *dce_conn, const char *reason)
58 struct stream_connection *srv_conn;
59 srv_conn = talloc_get_type(dce_conn->transport.private_data,
60 struct stream_connection);
62 stream_terminate_connection(srv_conn, reason);
65 static void dcesrv_sock_report_output_data(struct dcesrv_connection *dcesrv_conn)
67 struct stream_connection *srv_conn;
68 srv_conn = talloc_get_type(dcesrv_conn->transport.private_data,
69 struct stream_connection);
71 if (srv_conn && srv_conn->event.fde) {
72 EVENT_FD_WRITEABLE(srv_conn->event.fde);
76 static struct socket_address *dcesrv_sock_get_my_addr(struct dcesrv_connection *dcesrv_conn, TALLOC_CTX *mem_ctx)
78 struct stream_connection *srv_conn;
79 srv_conn = talloc_get_type(dcesrv_conn->transport.private_data,
80 struct stream_connection);
82 return socket_get_my_addr(srv_conn->socket, mem_ctx);
85 static struct socket_address *dcesrv_sock_get_peer_addr(struct dcesrv_connection *dcesrv_conn, TALLOC_CTX *mem_ctx)
87 struct stream_connection *srv_conn;
88 srv_conn = talloc_get_type(dcesrv_conn->transport.private_data,
89 struct stream_connection);
91 return socket_get_peer_addr(srv_conn->socket, mem_ctx);
94 static void dcesrv_sock_accept(struct stream_connection *srv_conn)
97 struct dcesrv_socket_context *dcesrv_sock =
98 talloc_get_type(srv_conn->private, struct dcesrv_socket_context);
99 struct dcesrv_connection *dcesrv_conn = NULL;
101 status = dcesrv_endpoint_connect(dcesrv_sock->dcesrv_ctx,
103 dcesrv_sock->endpoint,
105 DCESRV_CALL_STATE_FLAG_MAY_ASYNC,
107 if (!NT_STATUS_IS_OK(status)) {
108 DEBUG(0,("dcesrv_sock_accept: dcesrv_endpoint_connect failed: %s\n",
110 stream_terminate_connection(srv_conn, nt_errstr(status));
114 dcesrv_conn->transport.private_data = srv_conn;
115 dcesrv_conn->transport.report_output_data = dcesrv_sock_report_output_data;
116 dcesrv_conn->transport.get_my_addr = dcesrv_sock_get_my_addr;
117 dcesrv_conn->transport.get_peer_addr = dcesrv_sock_get_peer_addr;
119 srv_conn->private = dcesrv_conn;
121 irpc_add_name(srv_conn->msg_ctx, "rpc_server");
126 static void dcesrv_sock_recv(struct stream_connection *conn, uint16_t flags)
129 struct dcesrv_connection *dce_conn = talloc_get_type(conn->private, struct dcesrv_connection);
133 if (dce_conn->processing) {
134 EVENT_FD_NOT_READABLE(conn->event.fde);
138 tmp_blob = data_blob_talloc(conn->socket, NULL, 0x1000);
139 if (tmp_blob.data == NULL) {
140 dcesrv_terminate_connection(dce_conn, "out of memory");
144 status = socket_recv(conn->socket, tmp_blob.data, tmp_blob.length, &nread, 0);
145 if (NT_STATUS_IS_ERR(status)) {
146 dcesrv_terminate_connection(dce_conn, nt_errstr(status));
150 talloc_free(tmp_blob.data);
154 tmp_blob.length = nread;
156 dce_conn->processing = True;
157 status = dcesrv_input(dce_conn, &tmp_blob);
158 dce_conn->processing = False;
159 talloc_free(tmp_blob.data);
161 EVENT_FD_READABLE(conn->event.fde);
163 if (!NT_STATUS_IS_OK(status)) {
164 dcesrv_terminate_connection(dce_conn, nt_errstr(status));
168 if (dce_conn->call_list && dce_conn->call_list->replies) {
169 EVENT_FD_WRITEABLE(conn->event.fde);
173 static void dcesrv_sock_send(struct stream_connection *conn, uint16_t flags)
175 struct dcesrv_connection *dce_conn = talloc_get_type(conn->private, struct dcesrv_connection);
178 status = dcesrv_output(dce_conn, conn->socket, dcerpc_write_fn);
179 if (NT_STATUS_IS_ERR(status)) {
180 dcesrv_terminate_connection(dce_conn, "eof on socket");
184 if (!dce_conn->call_list || !dce_conn->call_list->replies) {
185 EVENT_FD_NOT_WRITEABLE(conn->event.fde);
190 static const struct stream_server_ops dcesrv_stream_ops = {
192 .accept_connection = dcesrv_sock_accept,
193 .recv_handler = dcesrv_sock_recv,
194 .send_handler = dcesrv_sock_send,
199 NTSTATUS dcesrv_add_ep_unix(struct dcesrv_context *dce_ctx, struct dcesrv_endpoint *e,
200 struct event_context *event_ctx, const struct model_ops *model_ops)
202 struct dcesrv_socket_context *dcesrv_sock;
206 dcesrv_sock = talloc(event_ctx, struct dcesrv_socket_context);
207 NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
209 /* remember the endpoint of this socket */
210 dcesrv_sock->endpoint = e;
211 dcesrv_sock->dcesrv_ctx = talloc_reference(dcesrv_sock, dce_ctx);
213 status = stream_setup_socket(event_ctx, model_ops, &dcesrv_stream_ops,
214 "unix", e->ep_description->endpoint, &port,
216 if (!NT_STATUS_IS_OK(status)) {
217 DEBUG(0,("service_setup_stream_socket(path=%s) failed - %s\n",
218 e->ep_description->endpoint, nt_errstr(status)));
224 NTSTATUS dcesrv_add_ep_ncalrpc(struct dcesrv_context *dce_ctx, struct dcesrv_endpoint *e,
225 struct event_context *event_ctx, const struct model_ops *model_ops)
227 struct dcesrv_socket_context *dcesrv_sock;
232 if (!e->ep_description->endpoint) {
233 /* No identifier specified: use DEFAULT.
234 * DO NOT hardcode this value anywhere else. Rather, specify
235 * no endpoint and let the epmapper worry about it. */
236 e->ep_description->endpoint = talloc_strdup(dce_ctx, "DEFAULT");
239 full_path = talloc_asprintf(dce_ctx, "%s/%s", lp_ncalrpc_dir(), e->ep_description->endpoint);
241 dcesrv_sock = talloc(event_ctx, struct dcesrv_socket_context);
242 NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
244 /* remember the endpoint of this socket */
245 dcesrv_sock->endpoint = e;
246 dcesrv_sock->dcesrv_ctx = talloc_reference(dcesrv_sock, dce_ctx);
248 status = stream_setup_socket(event_ctx, model_ops, &dcesrv_stream_ops,
249 "unix", full_path, &port, dcesrv_sock);
250 if (!NT_STATUS_IS_OK(status)) {
251 DEBUG(0,("service_setup_stream_socket(identifier=%s,path=%s) failed - %s\n",
252 e->ep_description->endpoint, full_path, nt_errstr(status)));
258 add a socket address to the list of events, one event per dcerpc endpoint
260 static NTSTATUS add_socket_rpc_tcp_iface(struct dcesrv_context *dce_ctx, struct dcesrv_endpoint *e,
261 struct event_context *event_ctx, const struct model_ops *model_ops,
264 struct dcesrv_socket_context *dcesrv_sock;
268 if (e->ep_description->endpoint) {
269 port = atoi(e->ep_description->endpoint);
272 dcesrv_sock = talloc(event_ctx, struct dcesrv_socket_context);
273 NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
275 /* remember the endpoint of this socket */
276 dcesrv_sock->endpoint = e;
277 dcesrv_sock->dcesrv_ctx = talloc_reference(dcesrv_sock, dce_ctx);
279 status = stream_setup_socket(event_ctx, model_ops, &dcesrv_stream_ops,
280 "ipv4", address, &port, dcesrv_sock);
281 if (!NT_STATUS_IS_OK(status)) {
282 DEBUG(0,("service_setup_stream_socket(address=%s,port=%u) failed - %s\n",
283 address, port, nt_errstr(status)));
286 if (e->ep_description->endpoint == NULL) {
287 e->ep_description->endpoint = talloc_asprintf(dce_ctx, "%d", port);
293 NTSTATUS dcesrv_add_ep_tcp(struct dcesrv_context *dce_ctx, struct dcesrv_endpoint *e,
294 struct event_context *event_ctx, const struct model_ops *model_ops)
298 /* Add TCP/IP sockets */
299 if (lp_interfaces() && lp_bind_interfaces_only()) {
300 int num_interfaces = iface_count();
302 for(i = 0; i < num_interfaces; i++) {
303 const char *address = iface_n_ip(i);
304 status = add_socket_rpc_tcp_iface(dce_ctx, e, event_ctx, model_ops, address);
305 NT_STATUS_NOT_OK_RETURN(status);
308 status = add_socket_rpc_tcp_iface(dce_ctx, e, event_ctx, model_ops, lp_socket_address());
309 NT_STATUS_NOT_OK_RETURN(status);