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
);
84 host_addr
= host_name
;
87 ctx
= socket_connect_multi_send(state
, host_addr
,
88 state
->num_ports
, state
->ports
,
90 state
->ctx
->event_ctx
);
91 if (ctx
== NULL
) goto failed
;
92 ctx
->async
.fn
= smbcli_sock_connect_recv_conn
;
93 ctx
->async
.private_data
= state
;
101 static void smbcli_sock_connect_recv_conn(struct composite_context
*ctx
)
103 struct sock_connect_state
*state
=
104 talloc_get_type(ctx
->async
.private_data
,
105 struct sock_connect_state
);
106 struct socket_context
*sock
;
109 state
->ctx
->status
= socket_connect_multi_recv(ctx
, state
, &sock
,
111 if (!composite_is_ok(state
->ctx
)) return;
114 socket_set_option(sock
, state
->socket_options
, NULL
);
115 if (!composite_is_ok(state
->ctx
)) return;
118 state
->result
= talloc_zero(state
, struct smbcli_socket
);
119 if (composite_nomem(state
->result
, state
->ctx
)) return;
121 state
->result
->sock
= talloc_steal(state
->result
, sock
);
122 state
->result
->port
= port
;
123 state
->result
->hostname
= talloc_steal(sock
, state
->host_name
);
125 state
->result
->event
.ctx
= state
->ctx
->event_ctx
;
126 if (composite_nomem(state
->result
->event
.ctx
, state
->ctx
)) return;
128 composite_done(state
->ctx
);
132 finish a smbcli_sock_connect_send() operation
134 NTSTATUS
smbcli_sock_connect_recv(struct composite_context
*c
,
136 struct smbcli_socket
**result
)
138 NTSTATUS status
= composite_wait(c
);
139 if (NT_STATUS_IS_OK(status
)) {
140 struct sock_connect_state
*state
=
141 talloc_get_type(c
->private_data
,
142 struct sock_connect_state
);
143 *result
= talloc_steal(mem_ctx
, state
->result
);
150 connect a smbcli_socket context to an IP/port pair
151 if port is 0 then choose the ports listed in smb.conf (normally 445 then 139)
153 sync version of the function
155 NTSTATUS
smbcli_sock_connect(TALLOC_CTX
*mem_ctx
,
156 const char *host_addr
, const char **ports
,
157 const char *host_name
,
158 struct resolve_context
*resolve_ctx
,
159 struct tevent_context
*event_ctx
,
160 const char *socket_options
,
161 struct smbcli_socket
**result
)
163 struct composite_context
*c
=
164 smbcli_sock_connect_send(mem_ctx
, host_addr
, ports
, host_name
,
166 event_ctx
, socket_options
);
167 return smbcli_sock_connect_recv(c
, mem_ctx
, result
);
171 /****************************************************************************
172 mark the socket as dead
173 ****************************************************************************/
174 _PUBLIC_
void smbcli_sock_dead(struct smbcli_socket
*sock
)
176 talloc_free(sock
->event
.fde
);
177 sock
->event
.fde
= NULL
;
178 talloc_free(sock
->sock
);
182 /****************************************************************************
183 Set socket options on a open connection.
184 ****************************************************************************/
185 void smbcli_sock_set_options(struct smbcli_socket
*sock
, const char *options
)
187 socket_set_option(sock
->sock
, options
, NULL
);
190 /****************************************************************************
191 resolve a hostname and connect
192 ****************************************************************************/
193 _PUBLIC_
struct smbcli_socket
*smbcli_sock_connect_byname(const char *host
, const char **ports
,
195 struct resolve_context
*resolve_ctx
,
196 struct tevent_context
*event_ctx
,
197 const char *socket_options
)
199 int name_type
= NBT_NAME_SERVER
;
202 struct nbt_name nbt_name
;
204 TALLOC_CTX
*tmp_ctx
= talloc_new(mem_ctx
);
205 struct smbcli_socket
*result
;
207 if (event_ctx
== NULL
) {
208 DEBUG(0, ("Invalid NULL event context passed in as parameter\n"));
212 if (tmp_ctx
== NULL
) {
213 DEBUG(0, ("talloc_new failed\n"));
217 name
= talloc_strdup(tmp_ctx
, host
);
219 DEBUG(0, ("talloc_strdup failed\n"));
220 talloc_free(tmp_ctx
);
224 /* allow hostnames of the form NAME#xx and do a netbios lookup */
225 if ((p
= strchr(name
, '#'))) {
226 name_type
= strtol(p
+1, NULL
, 16);
230 make_nbt_name(&nbt_name
, host
, name_type
);
232 status
= resolve_name_ex(resolve_ctx
, 0, 0, &nbt_name
, tmp_ctx
, &address
, event_ctx
);
233 if (!NT_STATUS_IS_OK(status
)) {
234 talloc_free(tmp_ctx
);
238 status
= smbcli_sock_connect(mem_ctx
, address
, ports
, name
, resolve_ctx
,
240 socket_options
, &result
);
242 if (!NT_STATUS_IS_OK(status
)) {
243 DEBUG(9, ("smbcli_sock_connect failed: %s\n",
245 talloc_free(tmp_ctx
);
249 talloc_free(tmp_ctx
);