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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
|
/* -*- mode:c; tab-width:8; c-basic-offset:8; indent-tabs-mode:nil; -*- */
/*
Copyright (C) 2020 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#define _GNU_SOURCE
#include <inttypes.h>
#include <poll.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "smb2.h"
#include "libsmb2.h"
#include "libsmb2-raw.h"
#include "libsmb2-dcerpc.h"
#include "libsmb2-dcerpc-srvsvc.h"
#ifndef discard_const
#define discard_const(ptr) ((void *)((intptr_t)(ptr)))
#endif
int is_finished;
int usage(void)
{
fprintf(stderr, "Usage:\n"
"smb2-share-info <smb2-url>\n\n"
"URL format: "
"smb://[<domain;][<username>@]<host>[:<port>]/share\n");
exit(1);
}
void si_cb(struct dcerpc_context *dce, int status,
void *command_data, void *cb_data)
{
struct srvsvc_NetrShareGetInfo_rep *rep = command_data;
free(cb_data);
if (status) {
printf("failed to get info for share (%s) %s\n",
strerror(-status), dcerpc_get_error(dce));
exit(10);
}
printf("%-20s %-20s", rep->InfoStruct.ShareInfo1.netname.utf8,
rep->InfoStruct.ShareInfo1.remark.utf8);
if ((rep->InfoStruct.ShareInfo1.type & 3) == SHARE_TYPE_DISKTREE) {
printf(" DISKTREE");
}
if ((rep->InfoStruct.ShareInfo1.type & 3) == SHARE_TYPE_PRINTQ) {
printf(" PRINTQ");
}
if ((rep->InfoStruct.ShareInfo1.type & 3) == SHARE_TYPE_DEVICE) {
printf(" DEVICE");
}
if ((rep->InfoStruct.ShareInfo1.type & 3) == SHARE_TYPE_IPC) {
printf(" IPC");
}
if (rep->InfoStruct.ShareInfo1.type & SHARE_TYPE_TEMPORARY) {
printf(" TEMPORARY");
}
if (rep->InfoStruct.ShareInfo1.type & SHARE_TYPE_HIDDEN) {
printf(" HIDDEN");
}
printf("\n");
dcerpc_free_data(dce, rep);
is_finished = 1;
}
void co_cb(struct dcerpc_context *dce, int status,
void *command_data, void *cb_data)
{
struct srvsvc_NetrShareGetInfo_req *si_req;
struct smb2_url *url = cb_data;
char *server;
if (status != SMB2_STATUS_SUCCESS) {
printf("failed to connect to SRVSVC (%s) %s\n",
strerror(-status), dcerpc_get_error(dce));
exit(10);
}
si_req = calloc(1, sizeof(struct srvsvc_NetrShareGetInfo_req));
if (si_req == NULL) {
printf("failed to allocate srvsvc_NetrShareGetInfo_req\n");
exit(10);
}
server = malloc(strlen(url->server) + 3);
if (server == NULL) {
printf("failed to allocate ServerName\n");
exit(10);
}
sprintf(server, "\\\\%s", url->server);
si_req->ServerName.utf8 = server;
si_req->NetName.utf8 = url->share;
si_req->Level = 1;
if (dcerpc_call_async(dce,
SRVSVC_NETRSHAREGETINFO,
srvsvc_NetrShareGetInfo_req_coder, si_req,
srvsvc_NetrShareGetInfo_rep_coder,
sizeof(struct srvsvc_NetrShareGetInfo_rep),
si_cb, si_req) != 0) {
printf("dcerpc_call_async failed with %s\n",
dcerpc_get_error(dce));
free(si_req);
exit(10);
}
free(server);
}
int main(int argc, char *argv[])
{
struct smb2_context *smb2;
struct dcerpc_context *dce;
struct smb2_url *url;
struct pollfd pfd;
if (argc < 2) {
usage();
}
smb2 = smb2_init_context();
if (smb2 == NULL) {
fprintf(stderr, "Failed to init context\n");
exit(0);
}
url = smb2_parse_url(smb2, argv[1]);
if (url == NULL) {
fprintf(stderr, "Failed to parse url: %s\n",
smb2_get_error(smb2));
exit(0);
}
if (url->user) {
smb2_set_user(smb2, url->user);
}
smb2_set_security_mode(smb2, SMB2_NEGOTIATE_SIGNING_ENABLED);
if (smb2_connect_share(smb2, url->server, "IPC$", NULL) < 0) {
printf("Failed to connect to IPC$. %s\n",
smb2_get_error(smb2));
exit(10);
}
dce = dcerpc_create_context(smb2);
if (dce == NULL) {
printf("Failed to create dce context. %s\n",
smb2_get_error(smb2));
exit(10);
}
if (dcerpc_connect_context_async(dce, "srvsvc", &srvsvc_interface,
co_cb, url) != 0) {
printf("Failed to connect dce context. %s\n",
smb2_get_error(smb2));
exit(10);
}
while (!is_finished) {
pfd.fd = smb2_get_fd(smb2);
pfd.events = smb2_which_events(smb2);
if (poll(&pfd, 1, 1000) < 0) {
printf("Poll failed");
exit(10);
}
if (pfd.revents == 0) {
continue;
}
if (smb2_service(smb2, pfd.revents) < 0) {
printf("smb2_service failed with : %s\n",
smb2_get_error(smb2));
break;
}
}
dcerpc_destroy_context(dce);
smb2_disconnect_share(smb2);
smb2_destroy_url(url);
smb2_destroy_context(smb2);
return 0;
}
|
