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"
30 #include "libcli/raw/raw_proto.h"
32 struct sock_connect_state {
33 struct composite_context *ctx;
34 const char *host_name;
37 const char *socket_options;
38 struct smbcli_socket *result;
42 connect a smbcli_socket context to an IP/port pair
43 if port is 0 then choose 445 then 139
46 static void smbcli_sock_connect_recv_conn(struct composite_context *ctx);
48 struct composite_context *smbcli_sock_connect_send(TALLOC_CTX *mem_ctx,
49 const char *host_addr,
51 const char *host_name,
52 struct resolve_context *resolve_ctx,
53 struct tevent_context *event_ctx,
54 const char *socket_options)
56 struct composite_context *result, *ctx;
57 struct sock_connect_state *state;
60 result = talloc_zero(mem_ctx, struct composite_context);
61 if (result == NULL) goto failed;
62 result->state = COMPOSITE_STATE_IN_PROGRESS;
64 result->event_ctx = event_ctx;
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;
75 state->num_ports = str_list_length(ports);
76 state->ports = talloc_array(state, uint16_t, state->num_ports);
77 if (state->ports == NULL) goto failed;
78 for (i=0;ports[i];i++) {
79 state->ports[i] = atoi(ports[i]);
81 state->socket_options = talloc_reference(state, socket_options);
83 ctx = socket_connect_multi_send(state, host_addr,
84 state->num_ports, state->ports,
86 state->ctx->event_ctx);
87 if (ctx == NULL) goto failed;
88 ctx->async.fn = smbcli_sock_connect_recv_conn;
89 ctx->async.private_data = state;
97 static void smbcli_sock_connect_recv_conn(struct composite_context *ctx)
99 struct sock_connect_state *state =
100 talloc_get_type(ctx->async.private_data,
101 struct sock_connect_state);
102 struct socket_context *sock;
105 state->ctx->status = socket_connect_multi_recv(ctx, state, &sock,
107 if (!composite_is_ok(state->ctx)) return;
110 socket_set_option(sock, state->socket_options, NULL);
111 if (!composite_is_ok(state->ctx)) return;
114 state->result = talloc_zero(state, struct smbcli_socket);
115 if (composite_nomem(state->result, state->ctx)) return;
117 state->result->sock = talloc_steal(state->result, sock);
118 state->result->port = port;
119 state->result->hostname = talloc_steal(sock, state->host_name);
121 state->result->event.ctx = state->ctx->event_ctx;
122 if (composite_nomem(state->result->event.ctx, state->ctx)) return;
124 composite_done(state->ctx);
128 finish a smbcli_sock_connect_send() operation
130 NTSTATUS smbcli_sock_connect_recv(struct composite_context *c,
132 struct smbcli_socket **result)
134 NTSTATUS status = composite_wait(c);
135 if (NT_STATUS_IS_OK(status)) {
136 struct sock_connect_state *state =
137 talloc_get_type(c->private_data,
138 struct sock_connect_state);
139 *result = talloc_steal(mem_ctx, state->result);
146 connect a smbcli_socket context to an IP/port pair
147 if port is 0 then choose the ports listed in smb.conf (normally 445 then 139)
149 sync version of the function
151 NTSTATUS smbcli_sock_connect(TALLOC_CTX *mem_ctx,
152 const char *host_addr, const char **ports,
153 const char *host_name,
154 struct resolve_context *resolve_ctx,
155 struct tevent_context *event_ctx,
156 const char *socket_options,
157 struct smbcli_socket **result)
159 struct composite_context *c =
160 smbcli_sock_connect_send(mem_ctx, host_addr, ports, host_name,
162 event_ctx, socket_options);
163 return smbcli_sock_connect_recv(c, mem_ctx, result);
167 /****************************************************************************
168 mark the socket as dead
169 ****************************************************************************/
170 _PUBLIC_ void smbcli_sock_dead(struct smbcli_socket *sock)
172 talloc_free(sock->event.fde);
173 sock->event.fde = NULL;
174 talloc_free(sock->sock);
178 /****************************************************************************
179 Set socket options on a open connection.
180 ****************************************************************************/
181 void smbcli_sock_set_options(struct smbcli_socket *sock, const char *options)
183 socket_set_option(sock->sock, options, NULL);
186 /****************************************************************************
187 resolve a hostname and connect
188 ****************************************************************************/
189 _PUBLIC_ struct smbcli_socket *smbcli_sock_connect_byname(const char *host, const char **ports,
191 struct resolve_context *resolve_ctx,
192 struct tevent_context *event_ctx,
193 const char *socket_options)
195 int name_type = NBT_NAME_SERVER;
198 struct nbt_name nbt_name;
200 TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
201 struct smbcli_socket *result;
203 if (event_ctx == NULL) {
204 DEBUG(0, ("Invalid NULL event context passed in as parameter\n"));
208 if (tmp_ctx == NULL) {
209 DEBUG(0, ("talloc_new failed\n"));
213 name = talloc_strdup(tmp_ctx, host);
215 DEBUG(0, ("talloc_strdup failed\n"));
216 talloc_free(tmp_ctx);
220 /* allow hostnames of the form NAME#xx and do a netbios lookup */
221 if ((p = strchr(name, '#'))) {
222 name_type = strtol(p+1, NULL, 16);
226 make_nbt_name(&nbt_name, host, name_type);
228 status = resolve_name(resolve_ctx, &nbt_name, tmp_ctx, &address, event_ctx);
229 if (!NT_STATUS_IS_OK(status)) {
230 talloc_free(tmp_ctx);
234 status = smbcli_sock_connect(mem_ctx, address, ports, name, resolve_ctx,
236 socket_options, &result);
238 if (!NT_STATUS_IS_OK(status)) {
239 DEBUG(9, ("smbcli_sock_connect failed: %s\n",
241 talloc_free(tmp_ctx);
245 talloc_free(tmp_ctx);