2 Unix SMB/CIFS implementation.
4 broadcast name resolution module
6 Copyright (C) Andrew Tridgell 2005
7 Copyright (C) Jelmer Vernooij 2007
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 "libcli/resolve/resolve.h"
25 #include "system/network.h"
26 #include "lib/socket/netif.h"
27 #include "param/param.h"
29 struct resolve_bcast_data
{
30 struct interface
*ifaces
;
36 broadcast name resolution method - async send
38 struct composite_context
*resolve_name_bcast_send(TALLOC_CTX
*mem_ctx
,
39 struct tevent_context
*event_ctx
,
40 void *userdata
, uint32_t flags
,
42 struct nbt_name
*name
)
45 const char **address_list
;
46 struct composite_context
*c
;
48 struct resolve_bcast_data
*data
= talloc_get_type(userdata
, struct resolve_bcast_data
);
50 num_interfaces
= iface_count(data
->ifaces
);
52 address_list
= talloc_array(mem_ctx
, const char *, num_interfaces
+1);
53 if (address_list
== NULL
) return NULL
;
55 for (i
=0;i
<num_interfaces
;i
++) {
56 const char *bcast
= iface_n_bcast(data
->ifaces
, i
);
57 if (bcast
== NULL
) continue;
58 address_list
[count
] = talloc_strdup(address_list
, bcast
);
59 if (address_list
[count
] == NULL
) {
60 talloc_free(address_list
);
65 address_list
[count
] = NULL
;
67 c
= resolve_name_nbtlist_send(mem_ctx
, event_ctx
, flags
, port
, name
,
68 address_list
, data
->ifaces
, data
->nbt_port
,
69 data
->nbt_timeout
, true, false);
70 talloc_free(address_list
);
76 broadcast name resolution method - recv side
78 NTSTATUS
resolve_name_bcast_recv(struct composite_context
*c
,
80 struct socket_address
***addrs
,
83 NTSTATUS status
= resolve_name_nbtlist_recv(c
, mem_ctx
, addrs
, names
);
84 if (NT_STATUS_EQUAL(status
, NT_STATUS_IO_TIMEOUT
)) {
85 /* this makes much more sense for a bcast name resolution
87 status
= NT_STATUS_OBJECT_NAME_NOT_FOUND
;
92 bool resolve_context_add_bcast_method(struct resolve_context
*ctx
, struct interface
*ifaces
, uint16_t nbt_port
, int nbt_timeout
)
94 struct resolve_bcast_data
*data
= talloc(ctx
, struct resolve_bcast_data
);
95 data
->ifaces
= ifaces
;
96 data
->nbt_port
= nbt_port
;
97 data
->nbt_timeout
= nbt_timeout
;
98 return resolve_context_add_method(ctx
, resolve_name_bcast_send
, resolve_name_bcast_recv
, data
);
101 bool resolve_context_add_bcast_method_lp(struct resolve_context
*ctx
, struct loadparm_context
*lp_ctx
)
103 struct interface
*ifaces
;
104 load_interfaces(ctx
, lp_interfaces(lp_ctx
), &ifaces
);
105 return resolve_context_add_bcast_method(ctx
, ifaces
, lp_nbt_port(lp_ctx
), lp_parm_int(lp_ctx
, NULL
, "nbt", "timeout", 1));