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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 | * | |
ae665a52 SH |
9 | * Authors: J Hadi Salim (hadi@cyberus.ca) |
10 | * | |
68d5ba54 SH |
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" | |
c1027a75 | 28 | #include "tc_common.h" |
68d5ba54 SH |
29 | #include "tc_util.h" |
30 | ||
68d5ba54 SH |
31 | static struct action_util * action_list; |
32 | #ifdef CONFIG_GACT | |
33 | int gact_ld = 0 ; //fuckin backward compatibility | |
34 | #endif | |
35 | int batch_c = 0; | |
36 | int tab_flush = 0; | |
37 | ||
38 | void act_usage(void) | |
39 | { | |
f1e4f042 | 40 | /*XXX: In the near future add a action->print_help to improve |
41 | * usability | |
42 | * This would mean new tc will not be backward compatible | |
43 | * with any action .so from the old days. But if someone really | |
44 | * does that, they would know how to fix this .. | |
45 | * | |
302d3fb7 | 46 | */ |
f1e4f042 | 47 | fprintf (stderr, "usage: tc actions <ACTSPECOP>*\n"); |
48 | fprintf(stderr, | |
49 | "Where: \tACTSPECOP := ACR | GD | FL\n" | |
302d3fb7 SH |
50 | "\tACR := add | change | replace <ACTSPEC>* \n" |
51 | "\tGD := get | delete | <ACTISPEC>*\n" | |
52 | "\tFL := ls | list | flush | <ACTNAMESPEC>\n" | |
53 | "\tACTNAMESPEC := action <ACTNAME>\n" | |
54 | "\tACTISPEC := <ACTNAMESPEC> <INDEXSPEC>\n" | |
55 | "\tACTSPEC := action <ACTDETAIL> [INDEXSPEC]\n" | |
56 | "\tINDEXSPEC := index <32 bit indexvalue>\n" | |
57 | "\tACTDETAIL := <ACTNAME> <ACTPARAMS>\n" | |
58 | "\t\tExample ACTNAME is gact, mirred etc\n" | |
59 | "\t\tEach action has its own parameters (ACTPARAMS)\n" | |
60 | "\n"); | |
61 | ||
ebf32083 | 62 | exit(-1); |
68d5ba54 SH |
63 | } |
64 | ||
65 | static int print_noaopt(struct action_util *au, FILE *f, struct rtattr *opt) | |
66 | { | |
67 | if (opt && RTA_PAYLOAD(opt)) | |
ae665a52 | 68 | fprintf(f, "[Unknown action, optlen=%u] ", |
bb6a21a4 | 69 | (unsigned) RTA_PAYLOAD(opt)); |
68d5ba54 SH |
70 | return 0; |
71 | } | |
72 | ||
73 | static int parse_noaopt(struct action_util *au, int *argc_p, char ***argv_p, int code, struct nlmsghdr *n) | |
74 | { | |
75 | int argc = *argc_p; | |
76 | char **argv = *argv_p; | |
77 | ||
78 | if (argc) { | |
79 | fprintf(stderr, "Unknown action \"%s\", hence option \"%s\" is unparsable\n", au->id, *argv); | |
80 | } else { | |
81 | fprintf(stderr, "Unknown action \"%s\"\n", au->id); | |
82 | } | |
83 | return -1; | |
84 | } | |
85 | ||
86 | struct action_util *get_action_kind(char *str) | |
87 | { | |
cda4026c | 88 | static void *aBODY; |
68d5ba54 SH |
89 | void *dlh; |
90 | char buf[256]; | |
91 | struct action_util *a; | |
92 | #ifdef CONFIG_GACT | |
93 | int looked4gact = 0; | |
94 | restart_s: | |
95 | #endif | |
96 | for (a = action_list; a; a = a->next) { | |
97 | if (strcmp(a->id, str) == 0) | |
98 | return a; | |
99 | } | |
100 | ||
101 | snprintf(buf, sizeof(buf), "m_%s.so", str); | |
102 | dlh = dlopen(buf, RTLD_LAZY); | |
103 | if (dlh == NULL) { | |
104 | dlh = aBODY; | |
105 | if (dlh == NULL) { | |
106 | dlh = aBODY = dlopen(NULL, RTLD_LAZY); | |
107 | if (dlh == NULL) | |
108 | goto noexist; | |
109 | } | |
110 | } | |
111 | ||
95812b56 | 112 | snprintf(buf, sizeof(buf), "%s_action_util", str); |
68d5ba54 SH |
113 | a = dlsym(dlh, buf); |
114 | if (a == NULL) | |
115 | goto noexist; | |
116 | ||
117 | reg: | |
118 | a->next = action_list; | |
119 | action_list = a; | |
120 | return a; | |
121 | ||
122 | noexist: | |
123 | #ifdef CONFIG_GACT | |
124 | if (!looked4gact) { | |
125 | looked4gact = 1; | |
126 | strcpy(str,"gact"); | |
127 | goto restart_s; | |
128 | } | |
129 | #endif | |
130 | a = malloc(sizeof(*a)); | |
131 | if (a) { | |
132 | memset(a, 0, sizeof(*a)); | |
133 | strncpy(a->id, "noact", 15); | |
134 | a->parse_aopt = parse_noaopt; | |
135 | a->print_aopt = print_noaopt; | |
136 | goto reg; | |
137 | } | |
138 | return a; | |
139 | } | |
140 | ||
141 | int | |
ae665a52 | 142 | new_cmd(char **argv) |
68d5ba54 SH |
143 | { |
144 | if ((matches(*argv, "change") == 0) || | |
145 | (matches(*argv, "replace") == 0)|| | |
146 | (matches(*argv, "delete") == 0)|| | |
147 | (matches(*argv, "add") == 0)) | |
148 | return 1; | |
149 | ||
150 | return 0; | |
151 | ||
152 | } | |
153 | ||
154 | int | |
155 | parse_action(int *argc_p, char ***argv_p, int tca_id, struct nlmsghdr *n) | |
156 | { | |
157 | int argc = *argc_p; | |
158 | char **argv = *argv_p; | |
159 | struct rtattr *tail, *tail2; | |
160 | char k[16]; | |
161 | int ok = 0; | |
162 | int eap = 0; /* expect action parameters */ | |
163 | ||
164 | int ret = 0; | |
165 | int prio = 0; | |
166 | ||
167 | if (argc <= 0) | |
168 | return -1; | |
169 | ||
4a86fe19 | 170 | tail = tail2 = NLMSG_TAIL(n); |
68d5ba54 SH |
171 | |
172 | addattr_l(n, MAX_MSG, tca_id, NULL, 0); | |
173 | ||
174 | while (argc > 0) { | |
175 | ||
176 | memset(k, 0, sizeof (k)); | |
177 | ||
178 | if (strcmp(*argv, "action") == 0 ) { | |
179 | argc--; | |
180 | argv++; | |
181 | eap = 1; | |
182 | #ifdef CONFIG_GACT | |
183 | if (!gact_ld) { | |
184 | get_action_kind("gact"); | |
185 | } | |
186 | #endif | |
187 | continue; | |
188 | } else if (strcmp(*argv, "help") == 0) { | |
189 | return -1; | |
190 | } else if (new_cmd(argv)) { | |
191 | goto done0; | |
192 | } else { | |
193 | struct action_util *a = NULL; | |
194 | strncpy(k, *argv, sizeof (k) - 1); | |
195 | eap = 0; | |
196 | if (argc > 0 ) { | |
197 | a = get_action_kind(k); | |
198 | } else { | |
199 | done0: | |
200 | if (ok) | |
201 | break; | |
202 | else | |
203 | goto done; | |
204 | } | |
205 | ||
ae665a52 | 206 | if (NULL == a) { |
68d5ba54 SH |
207 | goto bad_val; |
208 | } | |
209 | ||
4a86fe19 | 210 | tail = NLMSG_TAIL(n); |
68d5ba54 SH |
211 | addattr_l(n, MAX_MSG, ++prio, NULL, 0); |
212 | addattr_l(n, MAX_MSG, TCA_ACT_KIND, k, strlen(k) + 1); | |
213 | ||
214 | ret = a->parse_aopt(a,&argc, &argv, TCA_ACT_OPTIONS, n); | |
215 | ||
216 | if (ret < 0) { | |
217 | fprintf(stderr,"bad action parsing\n"); | |
218 | goto bad_val; | |
219 | } | |
4a86fe19 | 220 | tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail; |
68d5ba54 SH |
221 | ok++; |
222 | } | |
223 | ||
224 | } | |
225 | ||
226 | if (eap > 0) { | |
227 | fprintf(stderr,"bad action empty %d\n",eap); | |
228 | goto bad_val; | |
229 | } | |
230 | ||
4a86fe19 | 231 | tail2->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail2; |
68d5ba54 SH |
232 | |
233 | done: | |
234 | *argc_p = argc; | |
235 | *argv_p = argv; | |
236 | return 0; | |
237 | bad_val: | |
ae665a52 | 238 | /* no need to undo things, returning from here should |
68d5ba54 SH |
239 | * cause enough pain */ |
240 | fprintf(stderr, "parse_action: bad value (%d:%s)!\n",argc,*argv); | |
241 | return -1; | |
242 | } | |
243 | ||
244 | int | |
245 | tc_print_one_action(FILE * f, struct rtattr *arg) | |
246 | { | |
247 | ||
248 | struct rtattr *tb[TCA_ACT_MAX + 1]; | |
249 | int err = 0; | |
250 | struct action_util *a = NULL; | |
251 | ||
252 | if (arg == NULL) | |
253 | return -1; | |
254 | ||
ac2fc2df | 255 | parse_rtattr_nested(tb, TCA_ACT_MAX, arg); |
68d5ba54 SH |
256 | if (tb[TCA_ACT_KIND] == NULL) { |
257 | fprintf(stderr, "NULL Action!\n"); | |
258 | return -1; | |
259 | } | |
260 | ||
261 | ||
262 | a = get_action_kind(RTA_DATA(tb[TCA_ACT_KIND])); | |
263 | if (NULL == a) | |
264 | return err; | |
265 | ||
266 | if (tab_flush) { | |
267 | fprintf(f," %s \n", a->id); | |
268 | tab_flush = 0; | |
269 | return 0; | |
270 | } | |
271 | ||
272 | err = a->print_aopt(a,f,tb[TCA_ACT_OPTIONS]); | |
273 | ||
274 | ||
275 | if (0 > err) | |
276 | return err; | |
277 | ||
e5879dc6 | 278 | if (show_stats && tb[TCA_ACT_STATS]) { |
279 | fprintf(f, "\tAction statistics:\n"); | |
280 | print_tcstats2_attr(f, tb[TCA_ACT_STATS], "\t", NULL); | |
3d327bf5 | 281 | fprintf(f, "\n"); |
68d5ba54 SH |
282 | } |
283 | ||
284 | return 0; | |
285 | } | |
286 | ||
287 | int | |
3d327bf5 | 288 | tc_print_action(FILE * f, const struct rtattr *arg) |
68d5ba54 SH |
289 | { |
290 | ||
291 | int i; | |
292 | struct rtattr *tb[TCA_ACT_MAX_PRIO + 1]; | |
293 | ||
294 | if (arg == NULL) | |
295 | return 0; | |
296 | ||
ac2fc2df | 297 | parse_rtattr_nested(tb, TCA_ACT_MAX_PRIO, arg); |
68d5ba54 SH |
298 | |
299 | if (tab_flush && NULL != tb[0] && NULL == tb[1]) { | |
300 | int ret = tc_print_one_action(f, tb[0]); | |
301 | return ret; | |
302 | } | |
303 | ||
304 | for (i = 0; i < TCA_ACT_MAX_PRIO; i++) { | |
305 | if (tb[i]) { | |
306 | fprintf(f, "\n\taction order %d: ", i + batch_c); | |
307 | if (0 > tc_print_one_action(f, tb[i])) { | |
308 | fprintf(f, "Error printing action\n"); | |
309 | } | |
310 | } | |
311 | ||
312 | } | |
313 | ||
314 | batch_c+=TCA_ACT_MAX_PRIO ; | |
315 | return 0; | |
316 | } | |
317 | ||
5bec3484 | 318 | int print_action(const struct sockaddr_nl *who, |
50772dc5 | 319 | struct nlmsghdr *n, |
3d327bf5 | 320 | void *arg) |
68d5ba54 SH |
321 | { |
322 | FILE *fp = (FILE*)arg; | |
323 | struct tcamsg *t = NLMSG_DATA(n); | |
324 | int len = n->nlmsg_len; | |
325 | struct rtattr * tb[TCAA_MAX+1]; | |
326 | ||
327 | len -= NLMSG_LENGTH(sizeof(*t)); | |
328 | ||
329 | if (len < 0) { | |
330 | fprintf(stderr, "Wrong len %d\n", len); | |
331 | return -1; | |
332 | } | |
333 | ||
68d5ba54 SH |
334 | parse_rtattr(tb, TCAA_MAX, TA_RTA(t), len); |
335 | ||
336 | if (NULL == tb[TCA_ACT_TAB]) { | |
337 | if (n->nlmsg_type != RTM_GETACTION) | |
5bec3484 | 338 | fprintf(stderr, "print_action: NULL kind\n"); |
68d5ba54 | 339 | return -1; |
ae665a52 | 340 | } |
68d5ba54 SH |
341 | |
342 | if (n->nlmsg_type == RTM_DELACTION) { | |
343 | if (n->nlmsg_flags & NLM_F_ROOT) { | |
ae665a52 | 344 | fprintf(fp, "Flushed table "); |
68d5ba54 SH |
345 | tab_flush = 1; |
346 | } else { | |
347 | fprintf(fp, "deleted action "); | |
348 | } | |
349 | } | |
350 | ||
351 | if (n->nlmsg_type == RTM_NEWACTION) | |
352 | fprintf(fp, "Added action "); | |
353 | tc_print_action(fp, tb[TCA_ACT_TAB]); | |
354 | ||
355 | return 0; | |
356 | } | |
357 | ||
358 | int tc_action_gd(int cmd, unsigned flags, int *argc_p, char ***argv_p) | |
359 | { | |
360 | char k[16]; | |
361 | struct action_util *a = NULL; | |
362 | int argc = *argc_p; | |
363 | char **argv = *argv_p; | |
364 | int prio = 0; | |
365 | int ret = 0; | |
366 | __u32 i; | |
68d5ba54 SH |
367 | struct sockaddr_nl nladdr; |
368 | struct rtattr *tail; | |
369 | struct rtattr *tail2; | |
370 | struct nlmsghdr *ans = NULL; | |
371 | ||
372 | struct { | |
373 | struct nlmsghdr n; | |
374 | struct tcamsg t; | |
375 | char buf[MAX_MSG]; | |
376 | } req; | |
377 | ||
378 | req.t.tca_family = AF_UNSPEC; | |
379 | ||
380 | memset(&req, 0, sizeof(req)); | |
381 | ||
382 | memset(&nladdr, 0, sizeof(nladdr)); | |
383 | nladdr.nl_family = AF_NETLINK; | |
384 | ||
385 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcamsg)); | |
386 | req.n.nlmsg_flags = NLM_F_REQUEST|flags; | |
387 | req.n.nlmsg_type = cmd; | |
388 | argc -=1; | |
389 | argv +=1; | |
390 | ||
391 | ||
4a86fe19 | 392 | tail = NLMSG_TAIL(&req.n); |
68d5ba54 SH |
393 | addattr_l(&req.n, MAX_MSG, TCA_ACT_TAB, NULL, 0); |
394 | ||
395 | while (argc > 0) { | |
396 | if (strcmp(*argv, "action") == 0 ) { | |
397 | argc--; | |
398 | argv++; | |
399 | continue; | |
400 | } else if (strcmp(*argv, "help") == 0) { | |
401 | return -1; | |
402 | } | |
403 | ||
404 | strncpy(k, *argv, sizeof (k) - 1); | |
405 | a = get_action_kind(k); | |
ae665a52 | 406 | if (NULL == a) { |
68d5ba54 SH |
407 | fprintf(stderr, "Error: non existent action: %s\n",k); |
408 | ret = -1; | |
409 | goto bad_val; | |
410 | } | |
411 | if (strcmp(a->id, k) != 0) { | |
412 | fprintf(stderr, "Error: non existent action: %s\n",k); | |
413 | ret = -1; | |
414 | goto bad_val; | |
415 | } | |
416 | ||
417 | argc -=1; | |
418 | argv +=1; | |
419 | if (argc <= 0) { | |
420 | fprintf(stderr, "Error: no index specified action: %s\n",k); | |
421 | ret = -1; | |
422 | goto bad_val; | |
423 | } | |
424 | ||
425 | if (matches(*argv, "index") == 0) { | |
426 | NEXT_ARG(); | |
427 | if (get_u32(&i, *argv, 10)) { | |
428 | fprintf(stderr, "Illegal \"index\"\n"); | |
429 | ret = -1; | |
430 | goto bad_val; | |
431 | } | |
432 | argc -=1; | |
433 | argv +=1; | |
434 | } else { | |
435 | fprintf(stderr, "Error: no index specified action: %s\n",k); | |
436 | ret = -1; | |
437 | goto bad_val; | |
438 | } | |
439 | ||
4a86fe19 | 440 | tail2 = NLMSG_TAIL(&req.n); |
441 | addattr_l(&req.n, MAX_MSG, ++prio, NULL, 0); | |
442 | addattr_l(&req.n, MAX_MSG, TCA_ACT_KIND, k, strlen(k) + 1); | |
443 | addattr32(&req.n, MAX_MSG, TCA_ACT_INDEX, i); | |
444 | tail2->rta_len = (void *) NLMSG_TAIL(&req.n) - (void *) tail2; | |
68d5ba54 SH |
445 | |
446 | } | |
447 | ||
4a86fe19 | 448 | tail->rta_len = (void *) NLMSG_TAIL(&req.n) - (void *) tail; |
68d5ba54 | 449 | |
68d5ba54 SH |
450 | req.n.nlmsg_seq = rth.dump = ++rth.seq; |
451 | if (cmd == RTM_GETACTION) | |
452 | ans = &req.n; | |
c1027a75 | 453 | |
68d5ba54 SH |
454 | if (rtnl_talk(&rth, &req.n, 0, 0, ans, NULL, NULL) < 0) { |
455 | fprintf(stderr, "We have an error talking to the kernel\n"); | |
52f337c1 | 456 | return 1; |
68d5ba54 SH |
457 | } |
458 | ||
5bec3484 | 459 | if (ans && print_action(NULL, &req.n, (void*)stdout) < 0) { |
68d5ba54 | 460 | fprintf(stderr, "Dump terminated\n"); |
52f337c1 | 461 | return 1; |
68d5ba54 SH |
462 | } |
463 | ||
464 | *argc_p = argc; | |
465 | *argv_p = argv; | |
68d5ba54 SH |
466 | bad_val: |
467 | return ret; | |
468 | } | |
469 | ||
470 | int tc_action_modify(int cmd, unsigned flags, int *argc_p, char ***argv_p) | |
471 | { | |
472 | int argc = *argc_p; | |
473 | char **argv = *argv_p; | |
474 | int ret = 0; | |
475 | ||
68d5ba54 SH |
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; | |
4a86fe19 | 490 | tail = NLMSG_TAIL(&req.n); |
68d5ba54 SH |
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 | } | |
4a86fe19 | 497 | tail->rta_len = (void *) NLMSG_TAIL(&req.n) - (void *) tail; |
68d5ba54 | 498 | |
68d5ba54 SH |
499 | if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0) { |
500 | fprintf(stderr, "We have an error talking to the kernel\n"); | |
501 | ret = -1; | |
502 | } | |
503 | ||
504 | *argc_p = argc; | |
505 | *argv_p = argv; | |
c1027a75 | 506 | |
68d5ba54 SH |
507 | return ret; |
508 | } | |
509 | ||
510 | int tc_act_list_or_flush(int argc, char **argv, int event) | |
511 | { | |
512 | int ret = 0, prio = 0, msg_size = 0; | |
513 | char k[16]; | |
68d5ba54 SH |
514 | struct rtattr *tail,*tail2; |
515 | struct action_util *a = NULL; | |
516 | struct { | |
517 | struct nlmsghdr n; | |
518 | struct tcamsg t; | |
519 | char buf[MAX_MSG]; | |
520 | } req; | |
521 | ||
522 | req.t.tca_family = AF_UNSPEC; | |
523 | ||
524 | memset(&req, 0, sizeof(req)); | |
525 | ||
526 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcamsg)); | |
527 | ||
4a86fe19 | 528 | tail = NLMSG_TAIL(&req.n); |
68d5ba54 | 529 | addattr_l(&req.n, MAX_MSG, TCA_ACT_TAB, NULL, 0); |
4a86fe19 | 530 | tail2 = NLMSG_TAIL(&req.n); |
68d5ba54 SH |
531 | |
532 | strncpy(k, *argv, sizeof (k) - 1); | |
533 | #ifdef CONFIG_GACT | |
534 | if (!gact_ld) { | |
535 | get_action_kind("gact"); | |
536 | } | |
537 | #endif | |
538 | a = get_action_kind(k); | |
ae665a52 | 539 | if (NULL == a) { |
68d5ba54 SH |
540 | fprintf(stderr,"bad action %s\n",k); |
541 | goto bad_val; | |
542 | } | |
543 | if (strcmp(a->id, k) != 0) { | |
544 | fprintf(stderr,"bad action %s\n",k); | |
545 | goto bad_val; | |
546 | } | |
547 | strncpy(k, *argv, sizeof (k) - 1); | |
548 | ||
549 | addattr_l(&req.n, MAX_MSG, ++prio, NULL, 0); | |
550 | addattr_l(&req.n, MAX_MSG, TCA_ACT_KIND, k, strlen(k) + 1); | |
4a86fe19 | 551 | tail2->rta_len = (void *) NLMSG_TAIL(&req.n) - (void *) tail2; |
552 | tail->rta_len = (void *) NLMSG_TAIL(&req.n) - (void *) tail; | |
68d5ba54 | 553 | |
68d5ba54 SH |
554 | msg_size = NLMSG_ALIGN(req.n.nlmsg_len) - NLMSG_ALIGN(sizeof(struct nlmsghdr)); |
555 | ||
ae665a52 | 556 | if (event == RTM_GETACTION) { |
68d5ba54 SH |
557 | if (rtnl_dump_request(&rth, event, (void *)&req.t, msg_size) < 0) { |
558 | perror("Cannot send dump request"); | |
52f337c1 | 559 | return 1; |
68d5ba54 | 560 | } |
5bec3484 | 561 | ret = rtnl_dump_filter(&rth, print_action, stdout, NULL, NULL); |
68d5ba54 SH |
562 | } |
563 | ||
ae665a52 | 564 | if (event == RTM_DELACTION) { |
68d5ba54 SH |
565 | req.n.nlmsg_len = NLMSG_ALIGN(req.n.nlmsg_len); |
566 | req.n.nlmsg_type = RTM_DELACTION; | |
567 | req.n.nlmsg_flags |= NLM_F_ROOT; | |
568 | req.n.nlmsg_flags |= NLM_F_REQUEST; | |
569 | if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0) { | |
570 | fprintf(stderr, "We have an error flushing\n"); | |
52f337c1 | 571 | return 1; |
68d5ba54 SH |
572 | } |
573 | ||
574 | } | |
575 | ||
576 | bad_val: | |
577 | ||
68d5ba54 SH |
578 | return ret; |
579 | } | |
580 | ||
581 | int do_action(int argc, char **argv) | |
582 | { | |
583 | ||
584 | int ret = 0; | |
585 | ||
586 | while (argc > 0) { | |
587 | ||
588 | if (matches(*argv, "add") == 0) { | |
589 | ret = tc_action_modify(RTM_NEWACTION, NLM_F_EXCL|NLM_F_CREATE, &argc, &argv); | |
590 | } else if (matches(*argv, "change") == 0 || | |
591 | matches(*argv, "replace") == 0) { | |
592 | ret = tc_action_modify(RTM_NEWACTION, NLM_F_CREATE|NLM_F_REPLACE, &argc, &argv); | |
593 | } else if (matches(*argv, "delete") == 0) { | |
594 | argc -=1; | |
595 | argv +=1; | |
596 | ret = tc_action_gd(RTM_DELACTION, 0, &argc, &argv); | |
597 | } else if (matches(*argv, "get") == 0) { | |
598 | argc -=1; | |
599 | argv +=1; | |
600 | ret = tc_action_gd(RTM_GETACTION, 0, &argc, &argv); | |
601 | } else if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0 | |
602 | || matches(*argv, "lst") == 0) { | |
603 | if (argc <= 2) { | |
604 | act_usage(); | |
605 | return -1; | |
606 | } | |
607 | return tc_act_list_or_flush(argc-2, argv+2, RTM_GETACTION); | |
608 | } else if (matches(*argv, "flush") == 0) { | |
609 | if (argc <= 2) { | |
610 | act_usage(); | |
611 | return -1; | |
612 | } | |
613 | return tc_act_list_or_flush(argc-2, argv+2, RTM_DELACTION); | |
614 | } else if (matches(*argv, "help") == 0) { | |
615 | act_usage(); | |
616 | return -1; | |
617 | } else { | |
618 | ||
619 | ret = -1; | |
620 | } | |
621 | ||
622 | if (ret < 0) { | |
f1e4f042 | 623 | fprintf(stderr, "Command \"%s\" is unknown, try \"tc actions help\".\n", *argv); |
68d5ba54 SH |
624 | return -1; |
625 | } | |
626 | } | |
627 | ||
628 | return 0; | |
629 | } | |
630 |