1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
/*
Unix SMB/CIFS implementation.
async implementation of WINBINDD_WINS_BYNAME
Copyright (C) Volker Lendecke 2011
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "winbindd.h"
#include "librpc/gen_ndr/ndr_wbint_c.h"
#include "libsmb/nmblib.h"
#include "lib/util/string_wrappers.h"
struct winbindd_wins_byname_state {
struct tevent_context *ev;
struct winbindd_request *request;
struct sockaddr_storage *addrs;
int num_addrs;
};
static void winbindd_wins_byname_wins_done(struct tevent_req *subreq);
static void winbindd_wins_byname_bcast_done(struct tevent_req *subreq);
struct tevent_req *winbindd_wins_byname_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct winbindd_cli_state *cli,
struct winbindd_request *request)
{
struct tevent_req *req, *subreq;
struct winbindd_wins_byname_state *state;
req = tevent_req_create(mem_ctx, &state,
struct winbindd_wins_byname_state);
if (req == NULL) {
return NULL;
}
state->ev = ev;
state->request = request;
/* Ensure null termination */
request->data.winsreq[sizeof(request->data.winsreq)-1]='\0';
DEBUG(3, ("[%5lu]: wins_byname %s\n", (unsigned long)cli->pid,
request->data.winsreq));
subreq = resolve_wins_send(state, ev, state->request->data.winsreq,
0x20);
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
}
tevent_req_set_callback(subreq, winbindd_wins_byname_wins_done, req);
return req;
}
static void winbindd_wins_byname_wins_done(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct winbindd_wins_byname_state *state = tevent_req_data(
req, struct winbindd_wins_byname_state);
NTSTATUS status;
status = resolve_wins_recv(subreq, talloc_tos(), &state->addrs,
&state->num_addrs, NULL);
TALLOC_FREE(subreq);
if (NT_STATUS_IS_OK(status)) {
tevent_req_done(req);
return;
}
subreq = name_resolve_bcast_send(state, state->ev,
state->request->data.winsreq, 0x20);
if (tevent_req_nomem(subreq, req)) {
return;
}
tevent_req_set_callback(subreq, winbindd_wins_byname_bcast_done, req);
}
static void winbindd_wins_byname_bcast_done(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct winbindd_wins_byname_state *state = tevent_req_data(
req, struct winbindd_wins_byname_state);
NTSTATUS status;
status = name_resolve_bcast_recv(subreq, talloc_tos(), &state->addrs,
&state->num_addrs);
TALLOC_FREE(subreq);
if (tevent_req_nterror(req, status)) {
return;
}
tevent_req_done(req);
}
NTSTATUS winbindd_wins_byname_recv(struct tevent_req *req,
struct winbindd_response *presp)
{
struct winbindd_wins_byname_state *state = tevent_req_data(
req, struct winbindd_wins_byname_state);
char *response;
NTSTATUS status;
int i;
if (tevent_req_is_nterror(req, &status)) {
return status;
}
response = talloc_strdup(talloc_tos(), "");
if (response == NULL) {
return NT_STATUS_NO_MEMORY;
}
for (i=0; i<state->num_addrs; i++) {
char addr[INET6_ADDRSTRLEN];
print_sockaddr(addr, sizeof(addr), &state->addrs[i]);
response = talloc_asprintf_append_buffer(
response, "%s\t", addr);
if (response == NULL) {
return NT_STATUS_NO_MEMORY;
}
}
response = talloc_asprintf_append_buffer(
response, "%s\n", state->request->data.winsreq);
if (response == NULL) {
return NT_STATUS_NO_MEMORY;
}
if (talloc_get_size(response) > sizeof(presp->data.winsresp)) {
TALLOC_FREE(response);
return NT_STATUS_MARSHALL_OVERFLOW;
}
fstrcpy(presp->data.winsresp, response);
TALLOC_FREE(response);
return NT_STATUS_OK;
}
|
