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
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
|
/*
Unix SMB/CIFS implementation.
NBT client - used to lookup netbios names
Copyright (C) Andrew Tridgell 1994-1998
Copyright (C) Jelmer Vernooij 2003 (Conversion to popt)
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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
extern BOOL AllowDebugChange;
static BOOL give_flags = False;
static BOOL use_bcast = True;
static BOOL got_bcast = False;
static struct in_addr bcast_addr;
static BOOL recursion_desired = False;
static BOOL translate_addresses = False;
static int ServerFD= -1;
static int RootPort = False;
static BOOL find_status=False;
/****************************************************************************
open the socket communication
**************************************************************************/
static BOOL open_sockets(void)
{
ServerFD = open_socket_in( SOCK_DGRAM,
(RootPort ? 137 : 0),
(RootPort ? 0 : 3),
interpret_addr(lp_socket_address()), True );
if (ServerFD == -1)
return(False);
set_socket_options( ServerFD, "SO_BROADCAST" );
DEBUG(3, ("Socket opened.\n"));
return True;
}
/****************************************************************************
turn a node status flags field into a string
****************************************************************************/
static char *node_status_flags(unsigned char flags)
{
static fstring ret;
fstrcpy(ret,"");
fstrcat(ret, (flags & 0x80) ? "<GROUP> " : " ");
if ((flags & 0x60) == 0x00) fstrcat(ret,"B ");
if ((flags & 0x60) == 0x20) fstrcat(ret,"P ");
if ((flags & 0x60) == 0x40) fstrcat(ret,"M ");
if ((flags & 0x60) == 0x60) fstrcat(ret,"H ");
if (flags & 0x10) fstrcat(ret,"<DEREGISTERING> ");
if (flags & 0x08) fstrcat(ret,"<CONFLICT> ");
if (flags & 0x04) fstrcat(ret,"<ACTIVE> ");
if (flags & 0x02) fstrcat(ret,"<PERMANENT> ");
return ret;
}
/****************************************************************************
turn the NMB Query flags into a string
****************************************************************************/
static char *query_flags(int flags)
{
static fstring ret1;
fstrcpy(ret1, "");
if (flags & NM_FLAGS_RS) fstrcat(ret1, "Response ");
if (flags & NM_FLAGS_AA) fstrcat(ret1, "Authoritative ");
if (flags & NM_FLAGS_TC) fstrcat(ret1, "Truncated ");
if (flags & NM_FLAGS_RD) fstrcat(ret1, "Recursion_Desired ");
if (flags & NM_FLAGS_RA) fstrcat(ret1, "Recursion_Available ");
if (flags & NM_FLAGS_B) fstrcat(ret1, "Broadcast ");
return ret1;
}
/****************************************************************************
do a node status query
****************************************************************************/
static void do_node_status(int fd, const char *name, int type, struct in_addr ip)
{
struct nmb_name nname;
int count, i, j;
NODE_STATUS_STRUCT *status;
struct node_status_extra extra;
fstring cleanname;
d_printf("Looking up status of %s\n",inet_ntoa(ip));
make_nmb_name(&nname, name, type);
status = node_status_query(fd,&nname,ip, &count, &extra);
if (status) {
for (i=0;i<count;i++) {
pull_ascii_fstring(cleanname, status[i].name);
for (j=0;cleanname[j];j++) {
if (!isprint((int)cleanname[j])) cleanname[j] = '.';
}
d_printf("\t%-15s <%02x> - %s\n",
cleanname,status[i].type,
node_status_flags(status[i].flags));
}
d_printf("\n\tMAC Address = %02X-%02X-%02X-%02X-%02X-%02X\n",
extra.mac_addr[0], extra.mac_addr[1],
extra.mac_addr[2], extra.mac_addr[3],
extra.mac_addr[4], extra.mac_addr[5]);
d_printf("\n");
SAFE_FREE(status);
} else {
d_printf("No reply from %s\n\n",inet_ntoa(ip));
}
}
/****************************************************************************
send out one query
****************************************************************************/
static BOOL query_one(const char *lookup, unsigned int lookup_type)
{
int j, count, flags = 0;
struct in_addr *ip_list=NULL;
if (got_bcast) {
d_printf("querying %s on %s\n", lookup, inet_ntoa(bcast_addr));
ip_list = name_query(ServerFD,lookup,lookup_type,use_bcast,
use_bcast?True:recursion_desired,
bcast_addr,&count, &flags, NULL);
} else {
struct in_addr *bcast;
for (j=iface_count() - 1;
!ip_list && j >= 0;
j--) {
bcast = iface_n_bcast(j);
d_printf("querying %s on %s\n",
lookup, inet_ntoa(*bcast));
ip_list = name_query(ServerFD,lookup,lookup_type,
use_bcast,
use_bcast?True:recursion_desired,
*bcast,&count, &flags, NULL);
}
}
if (!ip_list) return False;
if (give_flags)
d_printf("Flags: %s\n", query_flags(flags));
for (j=0;j<count;j++) {
if (translate_addresses) {
struct hostent *host = gethostbyaddr((char *)&ip_list[j], sizeof(ip_list[j]), AF_INET);
if (host) {
d_printf("%s, ", host -> h_name);
}
}
d_printf("%s %s<%02x>\n",inet_ntoa(ip_list[j]),lookup, lookup_type);
}
/* We can only do find_status if the ip address returned
was valid - ie. name_query returned true.
*/
if (find_status) {
do_node_status(ServerFD, lookup, lookup_type, ip_list[0]);
}
safe_free(ip_list);
return (ip_list != NULL);
}
/****************************************************************************
main program
****************************************************************************/
int main(int argc,char *argv[])
{
int opt;
unsigned int lookup_type = 0x0;
fstring lookup;
static BOOL find_master=False;
static BOOL lookup_by_ip = False;
poptContext pc;
struct poptOption long_options[] = {
POPT_AUTOHELP
{ "broadcast", 'B', POPT_ARG_STRING, NULL, 'B', "Specify address to use for broadcasts", "BROADCAST-ADDRESS" },
{ "flags", 'f', POPT_ARG_VAL, &give_flags, True, "List the NMB flags returned" },
{ "unicast", 'U', POPT_ARG_STRING, NULL, 'U', "Specify address to use for unicast" },
{ "master-browser", 'M', POPT_ARG_VAL, &find_master, True, "Search for a master browser" },
{ "recursion", 'R', POPT_ARG_VAL, &recursion_desired, True, "Set recursion desired in package" },
{ "status", 'S', POPT_ARG_VAL, &find_status, True, "Lookup node status as well" },
{ "translate", 'T', POPT_ARG_NONE, NULL, 'T', "Translate IP addresses into names" },
{ "root-port", 'r', POPT_ARG_VAL, &RootPort, True, "Use root port 137 (Win95 only replies to this)" },
{ "lookup-by-ip", 'A', POPT_ARG_VAL, &lookup_by_ip, True, "Do a node status on <name> as an IP Address" },
POPT_COMMON_SAMBA
POPT_COMMON_CONNECTION
{ 0, 0, 0, 0 }
};
*lookup = 0;
load_case_tables();
setup_logging(argv[0],True);
pc = poptGetContext("nmblookup", argc, (const char **)argv, long_options,
POPT_CONTEXT_KEEP_FIRST);
poptSetOtherOptionHelp(pc, "<NODE> ...");
while ((opt = poptGetNextOpt(pc)) != -1) {
switch (opt) {
case 'B':
bcast_addr = *interpret_addr2(poptGetOptArg(pc));
got_bcast = True;
use_bcast = True;
break;
case 'U':
bcast_addr = *interpret_addr2(poptGetOptArg(pc));
got_bcast = True;
use_bcast = False;
break;
case 'T':
translate_addresses = !translate_addresses;
break;
}
}
poptGetArg(pc); /* Remove argv[0] */
if(!poptPeekArg(pc)) {
poptPrintUsage(pc, stderr, 0);
exit(1);
}
if (!lp_load(dyn_CONFIGFILE,True,False,False)) {
fprintf(stderr, "Can't load %s - run testparm to debug it\n", dyn_CONFIGFILE);
}
load_interfaces();
if (!open_sockets()) return(1);
while(poptPeekArg(pc))
{
char *p;
struct in_addr ip;
fstrcpy(lookup,poptGetArg(pc));
if(lookup_by_ip)
{
ip = *interpret_addr2(lookup);
fstrcpy(lookup,"*");
do_node_status(ServerFD, lookup, lookup_type, ip);
continue;
}
if (find_master) {
if (*lookup == '-') {
fstrcpy(lookup,"\01\02__MSBROWSE__\02");
lookup_type = 1;
} else {
lookup_type = 0x1d;
}
}
p = strchr_m(lookup,'#');
if (p) {
*p = '\0';
sscanf(++p,"%x",&lookup_type);
}
if (!query_one(lookup, lookup_type)) {
d_printf( "name_query failed to find name %s", lookup );
if( 0 != lookup_type )
d_printf( "#%02x", lookup_type );
d_printf( "\n" );
}
}
poptFreeContext(pc);
return(0);
}
|
