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Commit | Line | Data |
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68d5ba54 SH |
1 | /* |
2 | * m_action.c Action Management | |
3 | * | |
4 | * This program is free software; you can distribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
6 | * as published by the Free Software Foundation; either version | |
7 | * 2 of the License, or (at your option) any later version. | |
8 | * | |
9 | * Authors: J Hadi Salim (hadi@cyberus.ca) | |
10 | * | |
11 | * TODO: | |
12 | * - parse to be passed a filedescriptor for logging purposes | |
13 | * | |
14 | */ | |
15 | ||
16 | #include <stdio.h> | |
17 | #include <stdlib.h> | |
18 | #include <unistd.h> | |
19 | #include <syslog.h> | |
20 | #include <fcntl.h> | |
21 | #include <sys/socket.h> | |
22 | #include <netinet/in.h> | |
23 | #include <arpa/inet.h> | |
24 | #include <string.h> | |
25 | #include <dlfcn.h> | |
26 | ||
27 | #include "utils.h" | |
28 | #include "tc_util.h" | |
29 | ||
30 | void *aBODY; | |
31 | ||
32 | ||
33 | static struct action_util * action_list; | |
34 | #ifdef CONFIG_GACT | |
35 | int gact_ld = 0 ; //fuckin backward compatibility | |
36 | #endif | |
37 | int batch_c = 0; | |
38 | int tab_flush = 0; | |
39 | ||
40 | void act_usage(void) | |
41 | { | |
42 | fprintf (stderr, "action usage improper\n"); | |
43 | } | |
44 | ||
45 | static int print_noaopt(struct action_util *au, FILE *f, struct rtattr *opt) | |
46 | { | |
47 | if (opt && RTA_PAYLOAD(opt)) | |
bb6a21a4 SH |
48 | fprintf(f, "[Unknown action, optlen=%u] ", |
49 | (unsigned) RTA_PAYLOAD(opt)); | |
68d5ba54 SH |
50 | return 0; |
51 | } | |
52 | ||
53 | static int parse_noaopt(struct action_util *au, int *argc_p, char ***argv_p, int code, struct nlmsghdr *n) | |
54 | { | |
55 | int argc = *argc_p; | |
56 | char **argv = *argv_p; | |
57 | ||
58 | if (argc) { | |
59 | fprintf(stderr, "Unknown action \"%s\", hence option \"%s\" is unparsable\n", au->id, *argv); | |
60 | } else { | |
61 | fprintf(stderr, "Unknown action \"%s\"\n", au->id); | |
62 | } | |
63 | return -1; | |
64 | } | |
65 | ||
66 | struct action_util *get_action_kind(char *str) | |
67 | { | |
68 | void *dlh; | |
69 | char buf[256]; | |
70 | struct action_util *a; | |
71 | #ifdef CONFIG_GACT | |
72 | int looked4gact = 0; | |
73 | restart_s: | |
74 | #endif | |
75 | for (a = action_list; a; a = a->next) { | |
76 | if (strcmp(a->id, str) == 0) | |
77 | return a; | |
78 | } | |
79 | ||
80 | snprintf(buf, sizeof(buf), "m_%s.so", str); | |
81 | dlh = dlopen(buf, RTLD_LAZY); | |
82 | if (dlh == NULL) { | |
83 | dlh = aBODY; | |
84 | if (dlh == NULL) { | |
85 | dlh = aBODY = dlopen(NULL, RTLD_LAZY); | |
86 | if (dlh == NULL) | |
87 | goto noexist; | |
88 | } | |
89 | } | |
90 | ||
95812b56 | 91 | snprintf(buf, sizeof(buf), "%s_action_util", str); |
68d5ba54 SH |
92 | a = dlsym(dlh, buf); |
93 | if (a == NULL) | |
94 | goto noexist; | |
95 | ||
96 | reg: | |
97 | a->next = action_list; | |
98 | action_list = a; | |
99 | return a; | |
100 | ||
101 | noexist: | |
102 | #ifdef CONFIG_GACT | |
103 | if (!looked4gact) { | |
104 | looked4gact = 1; | |
105 | strcpy(str,"gact"); | |
106 | goto restart_s; | |
107 | } | |
108 | #endif | |
109 | a = malloc(sizeof(*a)); | |
110 | if (a) { | |
111 | memset(a, 0, sizeof(*a)); | |
112 | strncpy(a->id, "noact", 15); | |
113 | a->parse_aopt = parse_noaopt; | |
114 | a->print_aopt = print_noaopt; | |
115 | goto reg; | |
116 | } | |
117 | return a; | |
118 | } | |
119 | ||
120 | int | |
121 | new_cmd(char **argv) | |
122 | { | |
123 | if ((matches(*argv, "change") == 0) || | |
124 | (matches(*argv, "replace") == 0)|| | |
125 | (matches(*argv, "delete") == 0)|| | |
126 | (matches(*argv, "add") == 0)) | |
127 | return 1; | |
128 | ||
129 | return 0; | |
130 | ||
131 | } | |
132 | ||
133 | int | |
134 | parse_action(int *argc_p, char ***argv_p, int tca_id, struct nlmsghdr *n) | |
135 | { | |
136 | int argc = *argc_p; | |
137 | char **argv = *argv_p; | |
138 | struct rtattr *tail, *tail2; | |
139 | char k[16]; | |
140 | int ok = 0; | |
141 | int eap = 0; /* expect action parameters */ | |
142 | ||
143 | int ret = 0; | |
144 | int prio = 0; | |
145 | ||
146 | if (argc <= 0) | |
147 | return -1; | |
148 | ||
149 | tail = tail2 = | |
150 | (struct rtattr *) (((void *) n) + NLMSG_ALIGN(n->nlmsg_len)); | |
151 | ||
152 | addattr_l(n, MAX_MSG, tca_id, NULL, 0); | |
153 | ||
154 | while (argc > 0) { | |
155 | ||
156 | memset(k, 0, sizeof (k)); | |
157 | ||
158 | if (strcmp(*argv, "action") == 0 ) { | |
159 | argc--; | |
160 | argv++; | |
161 | eap = 1; | |
162 | #ifdef CONFIG_GACT | |
163 | if (!gact_ld) { | |
164 | get_action_kind("gact"); | |
165 | } | |
166 | #endif | |
167 | continue; | |
168 | } else if (strcmp(*argv, "help") == 0) { | |
169 | return -1; | |
170 | } else if (new_cmd(argv)) { | |
171 | goto done0; | |
172 | } else { | |
173 | struct action_util *a = NULL; | |
174 | strncpy(k, *argv, sizeof (k) - 1); | |
175 | eap = 0; | |
176 | if (argc > 0 ) { | |
177 | a = get_action_kind(k); | |
178 | } else { | |
179 | done0: | |
180 | if (ok) | |
181 | break; | |
182 | else | |
183 | goto done; | |
184 | } | |
185 | ||
186 | if (NULL == a) { | |
187 | goto bad_val; | |
188 | } | |
189 | ||
190 | tail = | |
191 | (struct rtattr *) (((void *) n) + | |
192 | NLMSG_ALIGN(n->nlmsg_len)); | |
193 | addattr_l(n, MAX_MSG, ++prio, NULL, 0); | |
194 | addattr_l(n, MAX_MSG, TCA_ACT_KIND, k, strlen(k) + 1); | |
195 | ||
196 | ret = a->parse_aopt(a,&argc, &argv, TCA_ACT_OPTIONS, n); | |
197 | ||
198 | if (ret < 0) { | |
199 | fprintf(stderr,"bad action parsing\n"); | |
200 | goto bad_val; | |
201 | } | |
202 | tail->rta_len = | |
203 | (((void *) n) + NLMSG_ALIGN(n->nlmsg_len)) - | |
204 | (void *) tail; | |
205 | ok++; | |
206 | } | |
207 | ||
208 | } | |
209 | ||
210 | if (eap > 0) { | |
211 | fprintf(stderr,"bad action empty %d\n",eap); | |
212 | goto bad_val; | |
213 | } | |
214 | ||
215 | tail2->rta_len = | |
216 | (((void *) n) + NLMSG_ALIGN(n->nlmsg_len)) - (void *) tail2; | |
217 | ||
218 | done: | |
219 | *argc_p = argc; | |
220 | *argv_p = argv; | |
221 | return 0; | |
222 | bad_val: | |
223 | /* no need to undo things, returning from here should | |
224 | * cause enough pain */ | |
225 | fprintf(stderr, "parse_action: bad value (%d:%s)!\n",argc,*argv); | |
226 | return -1; | |
227 | } | |
228 | ||
229 | int | |
230 | tc_print_one_action(FILE * f, struct rtattr *arg) | |
231 | { | |
232 | ||
233 | struct rtattr *tb[TCA_ACT_MAX + 1]; | |
234 | int err = 0; | |
235 | struct action_util *a = NULL; | |
236 | ||
237 | if (arg == NULL) | |
238 | return -1; | |
239 | ||
240 | memset(tb, 0, sizeof (tb)); | |
241 | parse_rtattr(tb, TCA_ACT_MAX, RTA_DATA(arg), RTA_PAYLOAD(arg)); | |
242 | if (tb[TCA_ACT_KIND] == NULL) { | |
243 | fprintf(stderr, "NULL Action!\n"); | |
244 | return -1; | |
245 | } | |
246 | ||
247 | ||
248 | a = get_action_kind(RTA_DATA(tb[TCA_ACT_KIND])); | |
249 | if (NULL == a) | |
250 | return err; | |
251 | ||
252 | if (tab_flush) { | |
253 | fprintf(f," %s \n", a->id); | |
254 | tab_flush = 0; | |
255 | return 0; | |
256 | } | |
257 | ||
258 | err = a->print_aopt(a,f,tb[TCA_ACT_OPTIONS]); | |
259 | ||
260 | ||
261 | if (0 > err) | |
262 | return err; | |
263 | ||
3d327bf5 SH |
264 | if (show_stats && tb[TCA_STATS]) { |
265 | fprintf(f, "\t"); | |
266 | print_tcstats_attr(f, tb[TCA_STATS]); | |
267 | fprintf(f, "\n"); | |
68d5ba54 SH |
268 | } |
269 | ||
270 | return 0; | |
271 | } | |
272 | ||
273 | int | |
3d327bf5 | 274 | tc_print_action(FILE * f, const struct rtattr *arg) |
68d5ba54 SH |
275 | { |
276 | ||
277 | int i; | |
278 | struct rtattr *tb[TCA_ACT_MAX_PRIO + 1]; | |
279 | ||
280 | if (arg == NULL) | |
281 | return 0; | |
282 | ||
283 | memset(tb, 0, sizeof (tb)); | |
284 | parse_rtattr(tb, TCA_ACT_MAX_PRIO, RTA_DATA(arg), RTA_PAYLOAD(arg)); | |
285 | ||
286 | if (tab_flush && NULL != tb[0] && NULL == tb[1]) { | |
287 | int ret = tc_print_one_action(f, tb[0]); | |
288 | return ret; | |
289 | } | |
290 | ||
291 | for (i = 0; i < TCA_ACT_MAX_PRIO; i++) { | |
292 | if (tb[i]) { | |
293 | fprintf(f, "\n\taction order %d: ", i + batch_c); | |
294 | if (0 > tc_print_one_action(f, tb[i])) { | |
295 | fprintf(f, "Error printing action\n"); | |
296 | } | |
297 | } | |
298 | ||
299 | } | |
300 | ||
301 | batch_c+=TCA_ACT_MAX_PRIO ; | |
302 | return 0; | |
303 | } | |
304 | ||
3d327bf5 SH |
305 | static int do_print_action(const struct sockaddr_nl *who, |
306 | const struct nlmsghdr *n, | |
307 | void *arg) | |
68d5ba54 SH |
308 | { |
309 | FILE *fp = (FILE*)arg; | |
310 | struct tcamsg *t = NLMSG_DATA(n); | |
311 | int len = n->nlmsg_len; | |
312 | struct rtattr * tb[TCAA_MAX+1]; | |
313 | ||
314 | len -= NLMSG_LENGTH(sizeof(*t)); | |
315 | ||
316 | if (len < 0) { | |
317 | fprintf(stderr, "Wrong len %d\n", len); | |
318 | return -1; | |
319 | } | |
320 | ||
321 | memset(tb, 0, sizeof(tb)); | |
322 | parse_rtattr(tb, TCAA_MAX, TA_RTA(t), len); | |
323 | ||
324 | if (NULL == tb[TCA_ACT_TAB]) { | |
325 | if (n->nlmsg_type != RTM_GETACTION) | |
326 | fprintf(stderr, "do_print_action: NULL kind\n"); | |
327 | return -1; | |
328 | } | |
329 | ||
330 | if (n->nlmsg_type == RTM_DELACTION) { | |
331 | if (n->nlmsg_flags & NLM_F_ROOT) { | |
332 | fprintf(fp, "Flushed table "); | |
333 | tab_flush = 1; | |
334 | } else { | |
335 | fprintf(fp, "deleted action "); | |
336 | } | |
337 | } | |
338 | ||
339 | if (n->nlmsg_type == RTM_NEWACTION) | |
340 | fprintf(fp, "Added action "); | |
341 | tc_print_action(fp, tb[TCA_ACT_TAB]); | |
342 | ||
343 | return 0; | |
344 | } | |
345 | ||
346 | int tc_action_gd(int cmd, unsigned flags, int *argc_p, char ***argv_p) | |
347 | { | |
348 | char k[16]; | |
349 | struct action_util *a = NULL; | |
350 | int argc = *argc_p; | |
351 | char **argv = *argv_p; | |
352 | int prio = 0; | |
353 | int ret = 0; | |
354 | __u32 i; | |
355 | struct rtnl_handle rth; | |
356 | struct sockaddr_nl nladdr; | |
357 | struct rtattr *tail; | |
358 | struct rtattr *tail2; | |
359 | struct nlmsghdr *ans = NULL; | |
360 | ||
361 | struct { | |
362 | struct nlmsghdr n; | |
363 | struct tcamsg t; | |
364 | char buf[MAX_MSG]; | |
365 | } req; | |
366 | ||
367 | req.t.tca_family = AF_UNSPEC; | |
368 | ||
369 | memset(&req, 0, sizeof(req)); | |
370 | ||
371 | memset(&nladdr, 0, sizeof(nladdr)); | |
372 | nladdr.nl_family = AF_NETLINK; | |
373 | ||
374 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcamsg)); | |
375 | req.n.nlmsg_flags = NLM_F_REQUEST|flags; | |
376 | req.n.nlmsg_type = cmd; | |
377 | argc -=1; | |
378 | argv +=1; | |
379 | ||
380 | ||
381 | tail = (struct rtattr*)(((void*)&req.n)+NLMSG_ALIGN(req.n.nlmsg_len)); | |
382 | ||
383 | addattr_l(&req.n, MAX_MSG, TCA_ACT_TAB, NULL, 0); | |
384 | ||
385 | while (argc > 0) { | |
386 | if (strcmp(*argv, "action") == 0 ) { | |
387 | argc--; | |
388 | argv++; | |
389 | continue; | |
390 | } else if (strcmp(*argv, "help") == 0) { | |
391 | return -1; | |
392 | } | |
393 | ||
394 | strncpy(k, *argv, sizeof (k) - 1); | |
395 | a = get_action_kind(k); | |
396 | if (NULL == a) { | |
397 | fprintf(stderr, "Error: non existent action: %s\n",k); | |
398 | ret = -1; | |
399 | goto bad_val; | |
400 | } | |
401 | if (strcmp(a->id, k) != 0) { | |
402 | fprintf(stderr, "Error: non existent action: %s\n",k); | |
403 | ret = -1; | |
404 | goto bad_val; | |
405 | } | |
406 | ||
407 | argc -=1; | |
408 | argv +=1; | |
409 | if (argc <= 0) { | |
410 | fprintf(stderr, "Error: no index specified action: %s\n",k); | |
411 | ret = -1; | |
412 | goto bad_val; | |
413 | } | |
414 | ||
415 | if (matches(*argv, "index") == 0) { | |
416 | NEXT_ARG(); | |
417 | if (get_u32(&i, *argv, 10)) { | |
418 | fprintf(stderr, "Illegal \"index\"\n"); | |
419 | ret = -1; | |
420 | goto bad_val; | |
421 | } | |
422 | argc -=1; | |
423 | argv +=1; | |
424 | } else { | |
425 | fprintf(stderr, "Error: no index specified action: %s\n",k); | |
426 | ret = -1; | |
427 | goto bad_val; | |
428 | } | |
429 | ||
430 | tail2 = | |
431 | (struct rtattr *) (((void *) &req.n) + NLMSG_ALIGN(req.n.nlmsg_len)); | |
432 | addattr_l(&req.n, MAX_MSG, ++prio, NULL, 0); | |
433 | addattr_l(&req.n, MAX_MSG, TCA_ACT_KIND, k, strlen(k) + 1); | |
434 | addattr32(&req.n, MAX_MSG, TCA_ACT_INDEX, i); | |
435 | tail2->rta_len = | |
436 | (((void *) &req.n) + NLMSG_ALIGN(req.n.nlmsg_len)) - (void *) tail2; | |
437 | ||
438 | } | |
439 | ||
440 | tail->rta_len = (((void*)&req.n)+ NLMSG_ALIGN(req.n.nlmsg_len)) - (void*)tail; | |
441 | ||
442 | if (rtnl_open(&rth, 0) < 0) { | |
443 | fprintf(stderr, "Cannot open rtnetlink\n"); | |
444 | exit(1); | |
445 | } | |
446 | ||
447 | req.n.nlmsg_seq = rth.dump = ++rth.seq; | |
448 | if (cmd == RTM_GETACTION) | |
449 | ans = &req.n; | |
450 | if (rtnl_talk(&rth, &req.n, 0, 0, ans, NULL, NULL) < 0) { | |
451 | fprintf(stderr, "We have an error talking to the kernel\n"); | |
452 | rtnl_close(&rth); | |
453 | exit (1); | |
454 | } | |
455 | ||
456 | if (ans && do_print_action(NULL, &req.n, (void*)stdout) < 0) { | |
457 | fprintf(stderr, "Dump terminated\n"); | |
458 | rtnl_close(&rth); | |
459 | exit(1); | |
460 | } | |
461 | ||
462 | *argc_p = argc; | |
463 | *argv_p = argv; | |
464 | rtnl_close(&rth); | |
465 | bad_val: | |
466 | return ret; | |
467 | } | |
468 | ||
469 | int tc_action_modify(int cmd, unsigned flags, int *argc_p, char ***argv_p) | |
470 | { | |
471 | int argc = *argc_p; | |
472 | char **argv = *argv_p; | |
473 | int ret = 0; | |
474 | ||
475 | struct rtnl_handle rth; | |
476 | struct rtattr *tail; | |
477 | struct { | |
478 | struct nlmsghdr n; | |
479 | struct tcamsg t; | |
480 | char buf[MAX_MSG]; | |
481 | } req; | |
482 | ||
483 | req.t.tca_family = AF_UNSPEC; | |
484 | ||
485 | memset(&req, 0, sizeof(req)); | |
486 | ||
487 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcamsg)); | |
488 | req.n.nlmsg_flags = NLM_F_REQUEST|flags; | |
489 | req.n.nlmsg_type = cmd; | |
490 | tail = (struct rtattr*)(((void*)&req.n)+NLMSG_ALIGN(req.n.nlmsg_len)); | |
491 | argc -=1; | |
492 | argv +=1; | |
493 | if (parse_action(&argc, &argv, TCA_ACT_TAB, &req.n)) { | |
494 | fprintf(stderr, "Illegal \"action\"\n"); | |
495 | return -1; | |
496 | } | |
497 | tail->rta_len = (((void*)&req.n)+req.n.nlmsg_len) - (void*)tail; | |
498 | ||
499 | if (rtnl_open(&rth, 0) < 0) { | |
500 | fprintf(stderr, "Cannot open rtnetlink\n"); | |
501 | exit(1); | |
502 | } | |
503 | ||
504 | ||
505 | if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0) { | |
506 | fprintf(stderr, "We have an error talking to the kernel\n"); | |
507 | ret = -1; | |
508 | } | |
509 | ||
510 | *argc_p = argc; | |
511 | *argv_p = argv; | |
512 | rtnl_close(&rth); | |
513 | return ret; | |
514 | } | |
515 | ||
516 | int tc_act_list_or_flush(int argc, char **argv, int event) | |
517 | { | |
518 | int ret = 0, prio = 0, msg_size = 0; | |
519 | char k[16]; | |
520 | struct rtnl_handle rth; | |
521 | struct rtattr *tail,*tail2; | |
522 | struct action_util *a = NULL; | |
523 | struct { | |
524 | struct nlmsghdr n; | |
525 | struct tcamsg t; | |
526 | char buf[MAX_MSG]; | |
527 | } req; | |
528 | ||
529 | req.t.tca_family = AF_UNSPEC; | |
530 | ||
531 | memset(&req, 0, sizeof(req)); | |
532 | ||
533 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcamsg)); | |
534 | ||
535 | tail = (struct rtattr*)(((void*)&req.n)+NLMSG_ALIGN(req.n.nlmsg_len)); | |
536 | ||
537 | addattr_l(&req.n, MAX_MSG, TCA_ACT_TAB, NULL, 0); | |
538 | tail2 = | |
539 | (struct rtattr *) (((void *) &req.n) + NLMSG_ALIGN(req.n.nlmsg_len)); | |
540 | ||
541 | strncpy(k, *argv, sizeof (k) - 1); | |
542 | #ifdef CONFIG_GACT | |
543 | if (!gact_ld) { | |
544 | get_action_kind("gact"); | |
545 | } | |
546 | #endif | |
547 | a = get_action_kind(k); | |
548 | if (NULL == a) { | |
549 | fprintf(stderr,"bad action %s\n",k); | |
550 | goto bad_val; | |
551 | } | |
552 | if (strcmp(a->id, k) != 0) { | |
553 | fprintf(stderr,"bad action %s\n",k); | |
554 | goto bad_val; | |
555 | } | |
556 | strncpy(k, *argv, sizeof (k) - 1); | |
557 | ||
558 | addattr_l(&req.n, MAX_MSG, ++prio, NULL, 0); | |
559 | addattr_l(&req.n, MAX_MSG, TCA_ACT_KIND, k, strlen(k) + 1); | |
560 | tail2->rta_len = | |
561 | (((void *) &req.n) + NLMSG_ALIGN(req.n.nlmsg_len)) - (void *) tail2; | |
562 | tail->rta_len = (((void*)&req.n)+NLMSG_ALIGN(req.n.nlmsg_len)) - (void*)tail; | |
563 | ||
564 | ||
565 | if (rtnl_open(&rth, 0) < 0) { | |
566 | fprintf(stderr, "Cannot open rtnetlink\n"); | |
567 | exit(1); | |
568 | } | |
569 | ||
570 | msg_size = NLMSG_ALIGN(req.n.nlmsg_len) - NLMSG_ALIGN(sizeof(struct nlmsghdr)); | |
571 | ||
572 | if (event == RTM_GETACTION) { | |
573 | if (rtnl_dump_request(&rth, event, (void *)&req.t, msg_size) < 0) { | |
574 | perror("Cannot send dump request"); | |
575 | exit(1); | |
576 | } | |
577 | ret = rtnl_dump_filter(&rth, do_print_action, stdout, NULL, NULL); | |
578 | } | |
579 | ||
580 | if (event == RTM_DELACTION) { | |
581 | req.n.nlmsg_len = NLMSG_ALIGN(req.n.nlmsg_len); | |
582 | req.n.nlmsg_type = RTM_DELACTION; | |
583 | req.n.nlmsg_flags |= NLM_F_ROOT; | |
584 | req.n.nlmsg_flags |= NLM_F_REQUEST; | |
585 | if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0) { | |
586 | fprintf(stderr, "We have an error flushing\n"); | |
587 | rtnl_close(&rth); | |
588 | exit (1); | |
589 | } | |
590 | ||
591 | } | |
592 | ||
593 | bad_val: | |
594 | ||
595 | rtnl_close(&rth); | |
596 | return ret; | |
597 | } | |
598 | ||
599 | int do_action(int argc, char **argv) | |
600 | { | |
601 | ||
602 | int ret = 0; | |
603 | ||
604 | while (argc > 0) { | |
605 | ||
606 | if (matches(*argv, "add") == 0) { | |
607 | ret = tc_action_modify(RTM_NEWACTION, NLM_F_EXCL|NLM_F_CREATE, &argc, &argv); | |
608 | } else if (matches(*argv, "change") == 0 || | |
609 | matches(*argv, "replace") == 0) { | |
610 | ret = tc_action_modify(RTM_NEWACTION, NLM_F_CREATE|NLM_F_REPLACE, &argc, &argv); | |
611 | } else if (matches(*argv, "delete") == 0) { | |
612 | argc -=1; | |
613 | argv +=1; | |
614 | ret = tc_action_gd(RTM_DELACTION, 0, &argc, &argv); | |
615 | } else if (matches(*argv, "get") == 0) { | |
616 | argc -=1; | |
617 | argv +=1; | |
618 | ret = tc_action_gd(RTM_GETACTION, 0, &argc, &argv); | |
619 | } else if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0 | |
620 | || matches(*argv, "lst") == 0) { | |
621 | if (argc <= 2) { | |
622 | act_usage(); | |
623 | return -1; | |
624 | } | |
625 | return tc_act_list_or_flush(argc-2, argv+2, RTM_GETACTION); | |
626 | } else if (matches(*argv, "flush") == 0) { | |
627 | if (argc <= 2) { | |
628 | act_usage(); | |
629 | return -1; | |
630 | } | |
631 | return tc_act_list_or_flush(argc-2, argv+2, RTM_DELACTION); | |
632 | } else if (matches(*argv, "help") == 0) { | |
633 | act_usage(); | |
634 | return -1; | |
635 | } else { | |
636 | ||
637 | ret = -1; | |
638 | } | |
639 | ||
640 | if (ret < 0) { | |
641 | fprintf(stderr, "Command \"%s\" is unknown, try \"tc action help\".\n", *argv); | |
642 | return -1; | |
643 | } | |
644 | } | |
645 | ||
646 | return 0; | |
647 | } | |
648 |