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"
29 #include "param/param.h"
31 struct sock_connect_state {
32 struct composite_context *ctx;
33 const char *host_name;
36 struct smbcli_socket *result;
40 connect a smbcli_socket context to an IP/port pair
41 if port is 0 then choose 445 then 139
44 static void smbcli_sock_connect_recv_conn(struct composite_context *ctx);
46 struct composite_context *smbcli_sock_connect_send(TALLOC_CTX *mem_ctx,
47 const char *host_addr,
49 const char *host_name,
50 struct event_context *event_ctx)
52 struct composite_context *result, *ctx;
53 struct sock_connect_state *state;
55 result = talloc_zero(mem_ctx, struct composite_context);
56 if (result == NULL) goto failed;
57 result->state = COMPOSITE_STATE_IN_PROGRESS;
59 if (event_ctx != NULL) {
60 result->event_ctx = talloc_reference(result, event_ctx);
62 result->event_ctx = event_context_init(result);
65 if (result->event_ctx == NULL) goto failed;
67 state = talloc(result, struct sock_connect_state);
68 if (state == NULL) goto failed;
70 result->private_data = state;
72 state->host_name = talloc_strdup(state, host_name);
73 if (state->host_name == NULL) goto failed;
76 const char **ports = lp_smb_ports(global_loadparm);
79 for (i=0;ports[i];i++) /* noop */ ;
81 DEBUG(3, ("no smb ports defined\n"));
85 state->ports = talloc_array(state, uint16_t, i);
86 if (state->ports == NULL) goto failed;
87 for (i=0;ports[i];i++) {
88 state->ports[i] = atoi(ports[i]);
91 state->ports = talloc_array(state, uint16_t, 1);
92 if (state->ports == NULL) goto failed;
94 state->ports[0] = port;
97 ctx = socket_connect_multi_send(state, host_addr,
98 state->num_ports, state->ports,
99 state->ctx->event_ctx);
100 if (ctx == NULL) goto failed;
101 ctx->async.fn = smbcli_sock_connect_recv_conn;
102 ctx->async.private_data = state;
110 static void smbcli_sock_connect_recv_conn(struct composite_context *ctx)
112 struct sock_connect_state *state =
113 talloc_get_type(ctx->async.private_data,
114 struct sock_connect_state);
115 struct socket_context *sock;
118 state->ctx->status = socket_connect_multi_recv(ctx, state, &sock,
120 if (!composite_is_ok(state->ctx)) return;
123 socket_set_option(sock, lp_socket_options(global_loadparm), NULL);
124 if (!composite_is_ok(state->ctx)) return;
127 state->result = talloc_zero(state, struct smbcli_socket);
128 if (composite_nomem(state->result, state->ctx)) return;
130 state->result->sock = talloc_steal(state->result, sock);
131 state->result->port = port;
132 state->result->hostname = talloc_steal(sock, state->host_name);
134 state->result->event.ctx =
135 talloc_reference(state->result, state->ctx->event_ctx);
136 if (composite_nomem(state->result->event.ctx, state->ctx)) return;
138 composite_done(state->ctx);
142 finish a smbcli_sock_connect_send() operation
144 NTSTATUS smbcli_sock_connect_recv(struct composite_context *c,
146 struct smbcli_socket **result)
148 NTSTATUS status = composite_wait(c);
149 if (NT_STATUS_IS_OK(status)) {
150 struct sock_connect_state *state =
151 talloc_get_type(c->private_data,
152 struct sock_connect_state);
153 *result = talloc_steal(mem_ctx, state->result);
160 connect a smbcli_socket context to an IP/port pair
161 if port is 0 then choose the ports listed in smb.conf (normally 445 then 139)
163 sync version of the function
165 NTSTATUS smbcli_sock_connect(TALLOC_CTX *mem_ctx,
166 const char *host_addr, int port,
167 const char *host_name,
168 struct event_context *event_ctx,
169 struct smbcli_socket **result)
171 struct composite_context *c =
172 smbcli_sock_connect_send(mem_ctx, host_addr, port, host_name,
174 return smbcli_sock_connect_recv(c, mem_ctx, result);
178 /****************************************************************************
179 mark the socket as dead
180 ****************************************************************************/
181 void smbcli_sock_dead(struct smbcli_socket *sock)
183 talloc_free(sock->event.fde);
184 sock->event.fde = NULL;
185 talloc_free(sock->sock);
189 /****************************************************************************
190 Set socket options on a open connection.
191 ****************************************************************************/
192 void smbcli_sock_set_options(struct smbcli_socket *sock, const char *options)
194 socket_set_option(sock->sock, options, NULL);
197 /****************************************************************************
198 resolve a hostname and connect
199 ****************************************************************************/
200 struct smbcli_socket *smbcli_sock_connect_byname(const char *host, int port,
202 const char **name_resolve_order,
203 struct event_context *event_ctx)
205 int name_type = NBT_NAME_SERVER;
208 struct nbt_name nbt_name;
210 TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
211 struct smbcli_socket *result;
213 if (tmp_ctx == NULL) {
214 DEBUG(0, ("talloc_new failed\n"));
218 name = talloc_strdup(tmp_ctx, host);
220 DEBUG(0, ("talloc_strdup failed\n"));
221 talloc_free(tmp_ctx);
225 if (event_ctx == NULL) {
226 event_ctx = event_context_init(mem_ctx);
229 if (event_ctx == NULL) {
230 DEBUG(0, ("event_context_init failed\n"));
231 talloc_free(tmp_ctx);
235 /* allow hostnames of the form NAME#xx and do a netbios lookup */
236 if ((p = strchr(name, '#'))) {
237 name_type = strtol(p+1, NULL, 16);
241 make_nbt_name(&nbt_name, host, name_type);
243 status = resolve_name(&nbt_name, tmp_ctx, &address, event_ctx, name_resolve_order);
244 if (!NT_STATUS_IS_OK(status)) {
245 talloc_free(tmp_ctx);
249 status = smbcli_sock_connect(mem_ctx, address, port, name, event_ctx,
252 if (!NT_STATUS_IS_OK(status)) {
253 DEBUG(9, ("smbcli_sock_connect failed: %s\n",
255 talloc_free(tmp_ctx);
259 talloc_free(tmp_ctx);