2 Unix SMB/CIFS implementation.
4 SMB client socket context management functions
6 Copyright (C) Andrew Tridgell 1994-2005
7 Copyright (C) James Myers 2003 <myersjj@samba.org>
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
24 #include "lib/events/events.h"
25 #include "libcli/raw/libcliraw.h"
26 #include "libcli/composite/composite.h"
27 #include "lib/socket/socket.h"
28 #include "libcli/resolve/resolve.h"
30 struct sock_connect_state {
31 struct composite_context *ctx;
32 const char *host_name;
35 struct smbcli_socket *result;
39 connect a smbcli_socket context to an IP/port pair
40 if port is 0 then choose 445 then 139
43 static void smbcli_sock_connect_recv_conn(struct composite_context *ctx);
45 struct composite_context *smbcli_sock_connect_send(TALLOC_CTX *mem_ctx,
46 const char *host_addr,
48 const char *host_name,
49 struct event_context *event_ctx)
51 struct composite_context *result, *ctx;
52 struct sock_connect_state *state;
54 result = talloc_zero(mem_ctx, struct composite_context);
55 if (result == NULL) goto failed;
56 result->state = COMPOSITE_STATE_IN_PROGRESS;
58 if (event_ctx != NULL) {
59 result->event_ctx = talloc_reference(result, event_ctx);
61 result->event_ctx = event_context_init(result);
64 if (result->event_ctx == NULL) goto failed;
66 state = talloc(result, struct sock_connect_state);
67 if (state == NULL) goto failed;
69 result->private_data = state;
71 state->host_name = talloc_strdup(state, host_name);
72 if (state->host_name == NULL) goto failed;
75 const char **ports = lp_smb_ports();
78 for (i=0;ports[i];i++) /* noop */ ;
80 DEBUG(3, ("no smb ports defined\n"));
84 state->ports = talloc_array(state, uint16_t, i);
85 if (state->ports == NULL) goto failed;
86 for (i=0;ports[i];i++) {
87 state->ports[i] = atoi(ports[i]);
90 state->ports = talloc_array(state, uint16_t, 1);
91 if (state->ports == NULL) goto failed;
93 state->ports[0] = port;
96 ctx = socket_connect_multi_send(state, host_addr,
97 state->num_ports, state->ports,
98 state->ctx->event_ctx);
99 if (ctx == NULL) goto failed;
100 ctx->async.fn = smbcli_sock_connect_recv_conn;
101 ctx->async.private_data = state;
109 static void smbcli_sock_connect_recv_conn(struct composite_context *ctx)
111 struct sock_connect_state *state =
112 talloc_get_type(ctx->async.private_data,
113 struct sock_connect_state);
114 struct socket_context *sock;
117 state->ctx->status = socket_connect_multi_recv(ctx, state, &sock,
119 if (!composite_is_ok(state->ctx)) return;
122 socket_set_option(sock, lp_socket_options(), NULL);
123 if (!composite_is_ok(state->ctx)) return;
126 state->result = talloc_zero(state, struct smbcli_socket);
127 if (composite_nomem(state->result, state->ctx)) return;
129 state->result->sock = talloc_steal(state->result, sock);
130 state->result->port = port;
131 state->result->hostname = talloc_steal(sock, state->host_name);
133 state->result->event.ctx =
134 talloc_reference(state->result, state->ctx->event_ctx);
135 if (composite_nomem(state->result->event.ctx, state->ctx)) return;
137 composite_done(state->ctx);
141 finish a smbcli_sock_connect_send() operation
143 NTSTATUS smbcli_sock_connect_recv(struct composite_context *c,
145 struct smbcli_socket **result)
147 NTSTATUS status = composite_wait(c);
148 if (NT_STATUS_IS_OK(status)) {
149 struct sock_connect_state *state =
150 talloc_get_type(c->private_data,
151 struct sock_connect_state);
152 *result = talloc_steal(mem_ctx, state->result);
159 connect a smbcli_socket context to an IP/port pair
160 if port is 0 then choose the ports listed in smb.conf (normally 445 then 139)
162 sync version of the function
164 NTSTATUS smbcli_sock_connect(TALLOC_CTX *mem_ctx,
165 const char *host_addr, int port,
166 const char *host_name,
167 struct event_context *event_ctx,
168 struct smbcli_socket **result)
170 struct composite_context *c =
171 smbcli_sock_connect_send(mem_ctx, host_addr, port, host_name,
173 return smbcli_sock_connect_recv(c, mem_ctx, result);
177 /****************************************************************************
178 mark the socket as dead
179 ****************************************************************************/
180 void smbcli_sock_dead(struct smbcli_socket *sock)
182 talloc_free(sock->event.fde);
183 sock->event.fde = NULL;
184 talloc_free(sock->sock);
188 /****************************************************************************
189 Set socket options on a open connection.
190 ****************************************************************************/
191 void smbcli_sock_set_options(struct smbcli_socket *sock, const char *options)
193 socket_set_option(sock->sock, options, NULL);
196 /****************************************************************************
197 resolve a hostname and connect
198 ****************************************************************************/
199 struct smbcli_socket *smbcli_sock_connect_byname(const char *host, int port,
201 struct event_context *event_ctx)
203 int name_type = NBT_NAME_SERVER;
206 struct nbt_name nbt_name;
208 TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
209 struct smbcli_socket *result;
211 if (tmp_ctx == NULL) {
212 DEBUG(0, ("talloc_new failed\n"));
216 name = talloc_strdup(tmp_ctx, host);
218 DEBUG(0, ("talloc_strdup failed\n"));
219 talloc_free(tmp_ctx);
223 if (event_ctx == NULL) {
224 event_ctx = event_context_init(mem_ctx);
227 if (event_ctx == NULL) {
228 DEBUG(0, ("event_context_init failed\n"));
229 talloc_free(tmp_ctx);
233 /* allow hostnames of the form NAME#xx and do a netbios lookup */
234 if ((p = strchr(name, '#'))) {
235 name_type = strtol(p+1, NULL, 16);
239 make_nbt_name(&nbt_name, host, name_type);
241 status = resolve_name(&nbt_name, tmp_ctx, &address, event_ctx);
242 if (!NT_STATUS_IS_OK(status)) {
243 talloc_free(tmp_ctx);
247 status = smbcli_sock_connect(mem_ctx, address, port, name, event_ctx,
250 if (!NT_STATUS_IS_OK(status)) {
251 DEBUG(9, ("smbcli_sock_connect failed: %s\n",
253 talloc_free(tmp_ctx);
257 talloc_free(tmp_ctx);