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/proto.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 stream_terminate_connection(dce_conn->srv_conn, reason);
62 static void dcesrv_sock_accept(struct stream_connection *srv_conn)
65 struct dcesrv_socket_context *dcesrv_sock =
66 talloc_get_type(srv_conn->private, struct dcesrv_socket_context);
67 struct dcesrv_connection *dcesrv_conn = NULL;
69 status = dcesrv_endpoint_connect(dcesrv_sock->dcesrv_ctx,
71 dcesrv_sock->endpoint,
73 DCESRV_CALL_STATE_FLAG_MAY_ASYNC,
75 if (!NT_STATUS_IS_OK(status)) {
76 DEBUG(0,("dcesrv_sock_accept: dcesrv_endpoint_connect failed: %s\n",
78 stream_terminate_connection(srv_conn, nt_errstr(status));
82 srv_conn->private = dcesrv_conn;
84 irpc_add_name(srv_conn->msg_ctx, "rpc_server");
89 static void dcesrv_sock_recv(struct stream_connection *conn, uint16_t flags)
92 struct dcesrv_connection *dce_conn = talloc_get_type(conn->private, struct dcesrv_connection);
96 if (dce_conn->processing) {
97 EVENT_FD_NOT_READABLE(conn->event.fde);
101 tmp_blob = data_blob_talloc(conn->socket, NULL, 0x1000);
102 if (tmp_blob.data == NULL) {
103 dcesrv_terminate_connection(dce_conn, "out of memory");
107 status = socket_recv(conn->socket, tmp_blob.data, tmp_blob.length, &nread, 0);
108 if (NT_STATUS_IS_ERR(status)) {
109 dcesrv_terminate_connection(dce_conn, nt_errstr(status));
113 talloc_free(tmp_blob.data);
117 tmp_blob.length = nread;
119 dce_conn->processing = True;
120 status = dcesrv_input(dce_conn, &tmp_blob);
121 dce_conn->processing = False;
122 talloc_free(tmp_blob.data);
124 EVENT_FD_READABLE(conn->event.fde);
126 if (!NT_STATUS_IS_OK(status)) {
127 dcesrv_terminate_connection(dce_conn, nt_errstr(status));
131 if (dce_conn->call_list && dce_conn->call_list->replies) {
132 EVENT_FD_WRITEABLE(conn->event.fde);
136 static void dcesrv_sock_send(struct stream_connection *conn, uint16_t flags)
138 struct dcesrv_connection *dce_conn = talloc_get_type(conn->private, struct dcesrv_connection);
141 status = dcesrv_output(dce_conn, conn->socket, dcerpc_write_fn);
142 if (NT_STATUS_IS_ERR(status)) {
143 dcesrv_terminate_connection(dce_conn, "eof on socket");
147 if (!dce_conn->call_list || !dce_conn->call_list->replies) {
148 EVENT_FD_NOT_WRITEABLE(conn->event.fde);
153 static const struct stream_server_ops dcesrv_stream_ops = {
155 .accept_connection = dcesrv_sock_accept,
156 .recv_handler = dcesrv_sock_recv,
157 .send_handler = dcesrv_sock_send,
162 NTSTATUS dcesrv_add_ep_unix(struct dcesrv_context *dce_ctx, struct dcesrv_endpoint *e,
163 struct event_context *event_ctx, const struct model_ops *model_ops)
165 struct dcesrv_socket_context *dcesrv_sock;
169 dcesrv_sock = talloc(event_ctx, struct dcesrv_socket_context);
170 NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
172 /* remember the endpoint of this socket */
173 dcesrv_sock->endpoint = e;
174 dcesrv_sock->dcesrv_ctx = talloc_reference(dcesrv_sock, dce_ctx);
176 status = stream_setup_socket(event_ctx, model_ops, &dcesrv_stream_ops,
177 "unix", e->ep_description->endpoint, &port,
179 if (!NT_STATUS_IS_OK(status)) {
180 DEBUG(0,("service_setup_stream_socket(path=%s) failed - %s\n",
181 e->ep_description->endpoint, nt_errstr(status)));
187 NTSTATUS dcesrv_add_ep_ncalrpc(struct dcesrv_context *dce_ctx, struct dcesrv_endpoint *e,
188 struct event_context *event_ctx, const struct model_ops *model_ops)
190 struct dcesrv_socket_context *dcesrv_sock;
195 if (!e->ep_description->endpoint) {
196 /* No identifier specified: use DEFAULT.
197 * DO NOT hardcode this value anywhere else. Rather, specify
198 * no endpoint and let the epmapper worry about it. */
199 e->ep_description->endpoint = talloc_strdup(dce_ctx, "DEFAULT");
202 full_path = talloc_asprintf(dce_ctx, "%s/%s", lp_ncalrpc_dir(), e->ep_description->endpoint);
204 dcesrv_sock = talloc(event_ctx, struct dcesrv_socket_context);
205 NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
207 /* remember the endpoint of this socket */
208 dcesrv_sock->endpoint = e;
209 dcesrv_sock->dcesrv_ctx = talloc_reference(dcesrv_sock, dce_ctx);
211 status = stream_setup_socket(event_ctx, model_ops, &dcesrv_stream_ops,
212 "unix", full_path, &port, dcesrv_sock);
213 if (!NT_STATUS_IS_OK(status)) {
214 DEBUG(0,("service_setup_stream_socket(identifier=%s,path=%s) failed - %s\n",
215 e->ep_description->endpoint, full_path, nt_errstr(status)));
221 add a socket address to the list of events, one event per dcerpc endpoint
223 static NTSTATUS add_socket_rpc_tcp_iface(struct dcesrv_context *dce_ctx, struct dcesrv_endpoint *e,
224 struct event_context *event_ctx, const struct model_ops *model_ops,
227 struct dcesrv_socket_context *dcesrv_sock;
231 if (e->ep_description->endpoint) {
232 port = atoi(e->ep_description->endpoint);
235 dcesrv_sock = talloc(event_ctx, struct dcesrv_socket_context);
236 NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
238 /* remember the endpoint of this socket */
239 dcesrv_sock->endpoint = e;
240 dcesrv_sock->dcesrv_ctx = talloc_reference(dcesrv_sock, dce_ctx);
242 status = stream_setup_socket(event_ctx, model_ops, &dcesrv_stream_ops,
243 "ipv4", address, &port, dcesrv_sock);
244 if (!NT_STATUS_IS_OK(status)) {
245 DEBUG(0,("service_setup_stream_socket(address=%s,port=%u) failed - %s\n",
246 address, port, nt_errstr(status)));
249 if (e->ep_description->endpoint == NULL) {
250 e->ep_description->endpoint = talloc_asprintf(dce_ctx, "%d", port);
256 NTSTATUS dcesrv_add_ep_tcp(struct dcesrv_context *dce_ctx, struct dcesrv_endpoint *e,
257 struct event_context *event_ctx, const struct model_ops *model_ops)
261 /* Add TCP/IP sockets */
262 if (lp_interfaces() && lp_bind_interfaces_only()) {
263 int num_interfaces = iface_count();
265 for(i = 0; i < num_interfaces; i++) {
266 const char *address = iface_n_ip(i);
267 status = add_socket_rpc_tcp_iface(dce_ctx, e, event_ctx, model_ops, address);
268 NT_STATUS_NOT_OK_RETURN(status);
271 status = add_socket_rpc_tcp_iface(dce_ctx, e, event_ctx, model_ops, lp_socket_address());
272 NT_STATUS_NOT_OK_RETURN(status);