forked from zioproto/olsrd-gsoc2012
-
Notifications
You must be signed in to change notification settings - Fork 0
/
ohs_cmd.c
571 lines (462 loc) · 13.4 KB
/
ohs_cmd.c
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
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
/*
* The olsr.org Optimized Link-State Routing daemon(olsrd)
* Copyright (c) 2005, Andreas Tonnesen(andreto@olsr.org)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of olsr.org, olsrd nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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 OWNER 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.
*
* Visit http://www.olsr.org for more information.
*
* If you find this software useful feel free to make a donation
* to the project. For more information see the website or contact
* the copyright holders.
*
*/
#include "olsr_host_switch.h"
#include "olsr_types.h"
#include "commands.h"
#include "link_rules.h"
#include "ipcalc.h"
#include <string.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <errno.h>
#define TOK_BUF_SIZE 500
static char tok_buf[TOK_BUF_SIZE];
#define MAX_OLSRD_ARGS 10
static char olsrd_path[FILENAME_MAX];
static int
get_next_token(const char *src, char *dst, size_t buflen)
{
int i = 0, j = 0;
dst[0] = 0;
/* Skip leading spaces */
while (src[j] == ' ' && src[j] != 0) {
j++;
}
src += j;
i = 0;
while ((src[i] != ' ') && (src[i] != 0) && (i < ((int)buflen - 1))) {
dst[i] = src[i];
i++;
}
dst[i] = 0;
//if(strlen(dst))
//printf("Extracted token: %s\n", dst);
return i + j;
}
int
ohs_set_olsrd_path(const char *path)
{
strscpy(olsrd_path, path, sizeof(olsrd_path));
return 0;
}
#ifdef WIN32
int
ohs_cmd_olsrd(char *args __attribute__ ((unused)))
{
printf("olsrd command not available in windows version\nStart instances manually\n");
return 0;
}
#else
int
ohs_cmd_olsrd(const char *args)
{
const char *olsrd_args[MAX_OLSRD_ARGS];
struct in_addr iaddr;
args += get_next_token(args, tok_buf, TOK_BUF_SIZE);
if (!strlen(tok_buf))
goto print_usage;
/* Start olsrd instance */
if (!strncmp(tok_buf, "start", strlen("start"))) {
int argc = 0, i = 0;
args += get_next_token(args, tok_buf, TOK_BUF_SIZE);
if (!strlen(tok_buf))
goto print_usage;
if (!inet_aton(tok_buf, &iaddr)) {
printf("Invalid IP %s\n", tok_buf);
goto print_usage;
}
olsrd_args[argc++] = olsrd_path;
if (1) { /* config file is set */
olsrd_args[argc++] = "-f";
olsrd_args[argc++] = "/etc/olsrd-emu.conf";
}
olsrd_args[argc++] = "-hemu";
olsrd_args[argc++] = tok_buf;
olsrd_args[argc++] = "-d";
olsrd_args[argc++] = "0";
olsrd_args[argc++] = "-nofork";
olsrd_args[argc] = NULL;
printf("Executing: %s", olsrd_path);
for (i = 0; i < argc; i++)
printf(" %s", olsrd_args[i]);
printf("\n");
if (fork())
return 1;
if (execve(olsrd_path, (char *const *)olsrd_args, NULL) < 0) {
printf("Error executing olsrd: %s\n", strerror(errno));
exit(1);
}
}
/* Stop olsrd instance */
else if (!strncmp(tok_buf, "stop", strlen("stop"))) {
struct ohs_connection *oc;
args += get_next_token(args, tok_buf, TOK_BUF_SIZE);
if (!strlen(tok_buf))
goto print_usage;
if (!inet_aton(tok_buf, &iaddr)) {
printf("Invalid IP %s\n", tok_buf);
goto print_usage;
}
oc = get_client_by_addr((union olsr_ip_addr *)&iaddr.s_addr);
if (!oc) {
printf("No such client: %s\n", tok_buf);
return -1;
}
ohs_delete_connection(oc);
return 1;
}
/* Set olsrd binary path */
else if (!strncmp(tok_buf, "setb", strlen("setb"))) {
struct stat sbuf;
args += get_next_token(args, tok_buf, TOK_BUF_SIZE);
if (!strlen(tok_buf))
goto print_usage;
if (stat(tok_buf, &sbuf) < 0) {
printf("Error setting binary \"%s\": %s\n", tok_buf, strerror(errno));
return -1;
}
if ((sbuf.st_mode & S_IFDIR) || !(sbuf.st_mode & S_IXUSR)) {
printf("Error setting binary \"%s\": Not a regular execuatble file!\n", tok_buf);
return -1;
}
printf("New olsrd binary path:\"%s\"\n", tok_buf);
ohs_set_olsrd_path(tok_buf);
return 1;
}
/* Set arguments */
else if (!strncmp(tok_buf, "seta", strlen("seta"))) {
printf("Error - NOT IMPLEMENTED YET\n");
return 1;
}
/* Show settings */
else if (!strncmp(tok_buf, "show", strlen("show"))) {
printf("olsrd command settings:\n\tBinary path: %s\n\tArguments : \n", olsrd_path);
return 1;
}
print_usage:
printf("Usage: olsrd [start|stop|show|setb|seta] [IP|path|args]\n");
return 0;
}
#endif
int
ohs_cmd_link(const char *args)
{
olsr_u8_t bi = 0, wildc_src = 0, wildc_dst = 0;
struct ohs_connection *src, *dst;
struct in_addr iaddr;
int qual;
struct ohs_ip_link *link, *inv_link;
args += get_next_token(args, tok_buf, TOK_BUF_SIZE);
if (!strlen(tok_buf)) {
goto print_usage;
}
if (!strncmp(tok_buf, "bi", strlen("bi"))) {
bi = 1;
args += get_next_token(args, tok_buf, TOK_BUF_SIZE);
if (!strlen(tok_buf)) {
goto print_usage;
}
}
if (tok_buf[0] == '*') {
wildc_src = 1;
src = ohs_conns;
} else {
if (!inet_aton(tok_buf, &iaddr)) {
printf("Invalid src IP %s\n", tok_buf);
return -1;
}
src = get_client_by_addr((union olsr_ip_addr *)&iaddr.s_addr);
if (!src) {
printf("No such client: %s!\n", tok_buf);
return -1;
}
}
args += get_next_token(args, tok_buf, TOK_BUF_SIZE);
if (!strlen(tok_buf)) {
goto print_usage;
}
if (tok_buf[0] == '*') {
wildc_dst = 1;
dst = ohs_conns;
} else {
if (!inet_aton(tok_buf, &iaddr)) {
printf("Invalid src IP %s\n", tok_buf);
return -1;
}
dst = get_client_by_addr((union olsr_ip_addr *)&iaddr.s_addr);
if (!dst) {
printf("No such client: %s!\n", tok_buf);
return -1;
}
}
args += get_next_token(args, tok_buf, TOK_BUF_SIZE);
if (!strlen(tok_buf)) {
goto print_usage;
}
/* No use for bi if both src and dst are widcards */
if (wildc_src && wildc_dst) {
bi = 0;
}
qual = atoi(tok_buf);
if (qual < 0 || qual > 100) {
printf("Link quality out of range(0-100)\n");
return -1;
}
while (src) {
while (dst) {
struct ipaddr_str srcaddrstr, dstaddrstr;
if (src != dst) {
link = get_link(src, &dst->ip_addr);
inv_link = bi ? get_link(dst, &src->ip_addr) : NULL;
if (qual == 100) {
/* Remove link entry */
if (link) {
remove_link(src, link);
}
if (inv_link) {
remove_link(dst, inv_link);
}
} else {
if (!link) {
/* Create new link */
link = add_link(src, dst);
}
link->quality = qual;
if (bi) {
if (!inv_link) {
/* Create new link */
inv_link = add_link(dst, src);
}
inv_link->quality = qual;
}
}
printf("%s %sdirectional link(s) %s %c=> %s quality %d\n", (qual == 100) ? "Removing" : "Setting", bi ? "bi" : "uni",
olsr_ip_to_string(&srcaddrstr, &src->ip_addr), bi ? '<' : '=', olsr_ip_to_string(&dstaddrstr, &dst->ip_addr), qual);
}
if (wildc_dst) {
dst = dst->next;
} else {
break;
}
}
dst = wildc_dst ? ohs_conns : dst;
src = wildc_src ? src->next : NULL;
}
return 1;
print_usage:
printf("link <bi> srcIP dstIP [0-100]");
return -1;
}
int
ohs_cmd_list(const char *args)
{
struct ohs_connection *oc = ohs_conns;
args += get_next_token(args, tok_buf, TOK_BUF_SIZE);
if (!strlen(tok_buf) || !strncmp(tok_buf, "clients", strlen("clients"))) {
printf("All connected clients:\n");
while (oc) {
struct ipaddr_str addrstr;
printf("\t%s - Rx: %d Tx: %d LinkCnt: %d\n", olsr_ip_to_string(&addrstr, &oc->ip_addr), oc->rx, oc->tx, oc->linkcnt);
oc = oc->next;
}
} else if (!strncmp(tok_buf, "links", strlen("links"))) {
printf("All configured links:\n");
while (oc) {
struct ohs_ip_link *links = oc->links;
while (links) {
struct ipaddr_str addrstr, dststr;
printf("\t%s => %s Quality: %d\n", olsr_ip_to_string(&addrstr, &oc->ip_addr), olsr_ip_to_string(&dststr, &links->dst),
links->quality);
links = links->next;
}
oc = oc->next;
}
} else {
printf("list [clients|links]");
return -1;
}
return 1;
}
int
ohs_cmd_help(const char *args)
{
int i;
args += get_next_token(args, tok_buf, TOK_BUF_SIZE);
if (!strlen(tok_buf)) {
printf("Olsrd host switch version %s\n", OHS_VERSION);
printf("Available commands:\n");
for (i = 0; ohs_commands[i].cmd; i++) {
if (ohs_commands[i].helptext_brief)
printf("\t%s - %s\n", ohs_commands[i].cmd, ohs_commands[i].helptext_brief);
}
printf("\nType 'help cmd' for help on a specific command\n");
} else {
for (i = 0; ohs_commands[i].cmd; i++) {
if (!strncmp(tok_buf, ohs_commands[i].cmd, strlen(ohs_commands[i].cmd))) {
printf("Usage: %s\nDescription:\n%s\n", ohs_commands[i].syntax, ohs_commands[i].helptext_long);
return 1;
}
}
printf("Usage: help <command>\n");
}
return i;
}
int
ohs_cmd_log(const char *args)
{
olsr_u8_t set = 0;
args += get_next_token(args, tok_buf, TOK_BUF_SIZE);
if (strlen(tok_buf) && ((set = !strncmp(tok_buf, "set", strlen("set"))) || !strncmp(tok_buf, "unset", strlen("unset")))) {
olsr_u32_t new_bit = 0;
args += get_next_token(args, tok_buf, TOK_BUF_SIZE);
if (!strlen(tok_buf))
goto print_usage;
if (!strncmp(tok_buf, "CON", strlen("CON")))
new_bit = LOG_CONNECT;
else if (!strncmp(tok_buf, "FOR", strlen("FOR")))
new_bit = LOG_FORWARD;
else if (!strncmp(tok_buf, "LIN", strlen("LIN")))
new_bit = LOG_LINK;
if (!new_bit)
goto print_usage;
if (set)
logbits |= new_bit;
else
logbits &= ~new_bit;
printf("%s log bit: 0x%08x, new log: 0x%08x\n", set ? "Setting" : "Removing", new_bit, logbits);
} else {
if (strlen(tok_buf))
goto print_usage;
printf("Log: (0x%08x) ", logbits);
if (logbits & LOG_CONNECT)
printf("CONNECT ");
if (logbits & LOG_FORWARD)
printf("FORWARD ");
if (logbits & LOG_LINK)
printf("LINK ");
printf("\n");
}
return 1;
print_usage:
printf("Usage: log <[set|unset] [CONNECT|FORWARD|LINK]>\n");
return 0;
}
int
ohs_cmd_exit(const char *args __attribute__ ((unused)))
{
printf("Exitting... bye-bye!\n");
ohs_close(0);
}
void
ohs_parse_command(void)
{
static char cmd_line[500];
static int cmd_len = 0;
char *args;
char cmd_token[20];
int i;
#if defined WIN32
char c;
unsigned long Read;
INPUT_RECORD InRec;
KEY_EVENT_RECORD *KeyEventRec;
#endif
#if defined WIN32
if (!ReadConsoleInput(GetStdHandle(STD_INPUT_HANDLE), &InRec, sizeof(InRec), &Read)) {
fprintf(stderr, "ReadConsoleInput failed: %s\n", strerror(GetLastError()));
return;
}
if (InRec.EventType != KEY_EVENT)
return;
KeyEventRec = &InRec.Event.KeyEvent;
if (!KeyEventRec->bKeyDown)
return;
c = KeyEventRec->uChar.AsciiChar;
if (c == 8) {
if (cmd_len == 0)
return;
cmd_len--;
fputc(8, stdout);
fputc(32, stdout);
fputc(8, stdout);
fflush(stdout);
return;
}
fputc(c, stdout);
fflush(stdout);
if (c != '\n' && c != '\r' && cmd_len < (int)sizeof(cmd_line) - 1)
cmd_line[cmd_len++] = (char)c;
else
#else
if (fgets(cmd_line, sizeof(cmd_line), stdin) == NULL) {
ohs_cmd_exit(NULL);
}
for (cmd_len = 0; cmd_line[cmd_len] != 0 && cmd_line[cmd_len] != '\n'; cmd_len++);
#endif
{
cmd_line[cmd_len] = 0;
cmd_len = 0;
args = cmd_line + get_next_token(cmd_line, cmd_token, sizeof(cmd_token));
for (i = 0; ohs_commands[i].cmd != NULL; i++) {
if (strcmp(cmd_token, ohs_commands[i].cmd) == 0) {
if (ohs_commands[i].cmd_cb != NULL)
ohs_commands[i].cmd_cb(args);
else
printf("No action registered on cmd %s!\n", cmd_token);
break;
}
}
if (ohs_commands[i].cmd == NULL)
printf("%s: no such cmd!\n", cmd_token);
printf("\n> ");
fflush(stdout);
}
}
/*
* Local Variables:
* c-basic-offset: 2
* indent-tabs-mode: nil
* End:
*/