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Commit | Line | Data |
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aba5acdf SH |
1 | /* |
2 | * iplink.c "ip link". | |
3 | * | |
4 | * This program is free software; you can redistribute 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: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> | |
10 | * | |
11 | */ | |
12 | ||
13 | #include <stdio.h> | |
14 | #include <stdlib.h> | |
15 | #include <unistd.h> | |
16 | #include <syslog.h> | |
17 | #include <fcntl.h> | |
1d934839 | 18 | #include <dlfcn.h> |
aba5acdf SH |
19 | #include <errno.h> |
20 | #include <sys/socket.h> | |
21 | #include <linux/if.h> | |
22 | #include <linux/if_packet.h> | |
23 | #include <linux/if_ether.h> | |
24 | #include <linux/sockios.h> | |
25 | #include <netinet/in.h> | |
26 | #include <arpa/inet.h> | |
27 | #include <string.h> | |
28 | #include <sys/ioctl.h> | |
29 | #include <linux/sockios.h> | |
fbea6115 | 30 | #include <stdbool.h> |
aba5acdf SH |
31 | |
32 | #include "rt_names.h" | |
33 | #include "utils.h" | |
34 | #include "ip_common.h" | |
c3087c10 | 35 | #include "namespace.h" |
aba5acdf | 36 | |
1d934839 | 37 | #define IPLINK_IOCTL_COMPAT 1 |
5e3bb534 | 38 | #ifndef LIBDIR |
5c434a9e | 39 | #define LIBDIR "/usr/lib" |
b514b358 | 40 | #endif |
aba5acdf SH |
41 | |
42 | static void usage(void) __attribute__((noreturn)); | |
750a405a | 43 | static int iplink_have_newlink(void); |
aba5acdf SH |
44 | |
45 | void iplink_usage(void) | |
46 | { | |
750a405a | 47 | if (iplink_have_newlink()) { |
6773bcc2 SH |
48 | fprintf(stderr, |
49 | "Usage: ip link add [link DEV] [ name ] NAME\n" | |
50 | " [ txqueuelen PACKETS ]\n" | |
51 | " [ address LLADDR ]\n" | |
52 | " [ broadcast LLADDR ]\n" | |
53 | " [ mtu MTU ] [index IDX ]\n" | |
54 | " [ numtxqueues QUEUE_COUNT ]\n" | |
55 | " [ numrxqueues QUEUE_COUNT ]\n" | |
56 | " type TYPE [ ARGS ]\n" | |
57 | " ip link delete { DEVICE | dev DEVICE | group DEVGROUP } type TYPE [ ARGS ]\n" | |
58 | "\n" | |
59 | " ip link set { DEVICE | dev DEVICE | group DEVGROUP }\n" | |
60 | " [ { up | down } ]\n" | |
61 | " [ type TYPE ARGS ]\n"); | |
750a405a SH |
62 | } else |
63 | fprintf(stderr, "Usage: ip link set DEVICE [ { up | down } ]\n"); | |
64 | ||
6773bcc2 SH |
65 | fprintf(stderr, |
66 | " [ arp { on | off } ]\n" | |
67 | " [ dynamic { on | off } ]\n" | |
68 | " [ multicast { on | off } ]\n" | |
69 | " [ allmulticast { on | off } ]\n" | |
70 | " [ promisc { on | off } ]\n" | |
71 | " [ trailers { on | off } ]\n" | |
72 | " [ txqueuelen PACKETS ]\n" | |
73 | " [ name NEWNAME ]\n" | |
74 | " [ address LLADDR ]\n" | |
75 | " [ broadcast LLADDR ]\n" | |
76 | " [ mtu MTU ]\n" | |
77 | " [ netns { PID | NAME } ]\n" | |
78 | " [ link-netnsid ID ]\n" | |
79 | " [ alias NAME ]\n" | |
80 | " [ vf NUM [ mac LLADDR ]\n" | |
81 | " [ vlan VLANID [ qos VLAN-QOS ] [ proto VLAN-PROTO ] ]\n" | |
82 | ||
83 | " [ rate TXRATE ]\n" | |
84 | " [ max_tx_rate TXRATE ]\n" | |
85 | " [ min_tx_rate TXRATE ]\n" | |
86 | ||
87 | " [ spoofchk { on | off} ]\n" | |
88 | " [ query_rss { on | off} ]\n" | |
89 | " [ state { auto | enable | disable} ] ]\n" | |
90 | " [ trust { on | off} ] ]\n" | |
91 | " [ master DEVICE ][ vrf NAME ]\n" | |
92 | " [ nomaster ]\n" | |
93 | " [ addrgenmode { eui64 | none | stable_secret | random } ]\n" | |
94 | " [ protodown { on | off } ]\n" | |
95 | " ip link show [ DEVICE | group GROUP ] [up] [master DEV] [vrf NAME] [type TYPE]\n"); | |
750a405a SH |
96 | |
97 | if (iplink_have_newlink()) { | |
6773bcc2 SH |
98 | fprintf(stderr, |
99 | " ip link help [ TYPE ]\n\n" | |
100 | "TYPE := { vlan | veth | vcan | dummy | ifb | macvlan | macvtap |\n" | |
6bd1ea28 ZS |
101 | " bridge | bond | team | ipoib | ip6tnl | ipip | sit | vxlan |\n" |
102 | " gre | gretap | ip6gre | ip6gretap | vti | nlmon | team_slave |\n" | |
6773bcc2 | 103 | " bond_slave | ipvlan | geneve | bridge_slave | vrf | macsec }\n"); |
750a405a | 104 | } |
aba5acdf SH |
105 | exit(-1); |
106 | } | |
107 | ||
108 | static void usage(void) | |
109 | { | |
110 | iplink_usage(); | |
111 | } | |
112 | ||
14645ec2 | 113 | static int on_off(const char *msg, const char *realval) |
aba5acdf | 114 | { |
6c5ffb9a SH |
115 | fprintf(stderr, |
116 | "Error: argument of \"%s\" must be \"on\" or \"off\", not \"%s\"\n", | |
117 | msg, realval); | |
aba5acdf SH |
118 | return -1; |
119 | } | |
120 | ||
1d934839 PM |
121 | static void *BODY; /* cached dlopen(NULL) handle */ |
122 | static struct link_util *linkutil_list; | |
123 | ||
22a84711 | 124 | struct link_util *get_link_kind(const char *id) |
1d934839 PM |
125 | { |
126 | void *dlh; | |
127 | char buf[256]; | |
128 | struct link_util *l; | |
129 | ||
130 | for (l = linkutil_list; l; l = l->next) | |
22a84711 | 131 | if (strcmp(l->id, id) == 0) |
1d934839 PM |
132 | return l; |
133 | ||
5e3bb534 | 134 | snprintf(buf, sizeof(buf), LIBDIR "/ip/link_%s.so", id); |
1d934839 PM |
135 | dlh = dlopen(buf, RTLD_LAZY); |
136 | if (dlh == NULL) { | |
137 | /* look in current binary, only open once */ | |
138 | dlh = BODY; | |
139 | if (dlh == NULL) { | |
140 | dlh = BODY = dlopen(NULL, RTLD_LAZY); | |
141 | if (dlh == NULL) | |
142 | return NULL; | |
143 | } | |
144 | } | |
145 | ||
22a84711 | 146 | snprintf(buf, sizeof(buf), "%s_link_util", id); |
1d934839 PM |
147 | l = dlsym(dlh, buf); |
148 | if (l == NULL) | |
149 | return NULL; | |
150 | ||
151 | l->next = linkutil_list; | |
152 | linkutil_list = l; | |
153 | return l; | |
154 | } | |
155 | ||
d1f28cf1 | 156 | static int get_link_mode(const char *mode) |
82499282 | 157 | { |
4ccfb44d | 158 | if (strcasecmp(mode, "default") == 0) |
82499282 | 159 | return IF_LINK_MODE_DEFAULT; |
4ccfb44d | 160 | if (strcasecmp(mode, "dormant") == 0) |
82499282 SH |
161 | return IF_LINK_MODE_DORMANT; |
162 | return -1; | |
163 | } | |
164 | ||
ff7c2084 JP |
165 | static int get_addr_gen_mode(const char *mode) |
166 | { | |
167 | if (strcasecmp(mode, "eui64") == 0) | |
168 | return IN6_ADDR_GEN_MODE_EUI64; | |
169 | if (strcasecmp(mode, "none") == 0) | |
170 | return IN6_ADDR_GEN_MODE_NONE; | |
8e098dd8 BM |
171 | if (strcasecmp(mode, "stable_secret") == 0) |
172 | return IN6_ADDR_GEN_MODE_STABLE_PRIVACY; | |
8e12bc0a BM |
173 | if (strcasecmp(mode, "random") == 0) |
174 | return IN6_ADDR_GEN_MODE_RANDOM; | |
ff7c2084 JP |
175 | return -1; |
176 | } | |
177 | ||
1d934839 PM |
178 | #if IPLINK_IOCTL_COMPAT |
179 | static int have_rtnl_newlink = -1; | |
180 | ||
181 | static int accept_msg(const struct sockaddr_nl *who, | |
0628cddd | 182 | struct rtnl_ctrl_data *ctrl, |
1d934839 PM |
183 | struct nlmsghdr *n, void *arg) |
184 | { | |
185 | struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(n); | |
186 | ||
66e529f5 PM |
187 | if (n->nlmsg_type == NLMSG_ERROR && |
188 | (err->error == -EOPNOTSUPP || err->error == -EINVAL)) | |
1d934839 PM |
189 | have_rtnl_newlink = 0; |
190 | else | |
191 | have_rtnl_newlink = 1; | |
192 | return -1; | |
193 | } | |
194 | ||
195 | static int iplink_have_newlink(void) | |
196 | { | |
197 | struct { | |
198 | struct nlmsghdr n; | |
199 | struct ifinfomsg i; | |
200 | char buf[1024]; | |
d17b136f PS |
201 | } req = { |
202 | .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)), | |
203 | .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK, | |
204 | .n.nlmsg_type = RTM_NEWLINK, | |
205 | .i.ifi_family = AF_UNSPEC, | |
206 | }; | |
1d934839 PM |
207 | |
208 | if (have_rtnl_newlink < 0) { | |
d2468da0 SH |
209 | if (rtnl_send(&rth, &req.n, req.n.nlmsg_len) < 0) { |
210 | perror("request send failed"); | |
211 | exit(1); | |
212 | } | |
1d934839 PM |
213 | rtnl_listen(&rth, accept_msg, NULL); |
214 | } | |
215 | return have_rtnl_newlink; | |
216 | } | |
217 | #else /* IPLINK_IOCTL_COMPAT */ | |
218 | static int iplink_have_newlink(void) | |
219 | { | |
220 | return 1; | |
221 | } | |
222 | #endif /* ! IPLINK_IOCTL_COMPAT */ | |
223 | ||
909dfe2c PE |
224 | struct iplink_req { |
225 | struct nlmsghdr n; | |
226 | struct ifinfomsg i; | |
227 | char buf[1024]; | |
228 | }; | |
229 | ||
8fe58d58 PS |
230 | static int nl_get_ll_addr_len(unsigned int dev_index) |
231 | { | |
232 | int len; | |
233 | struct iplink_req req = { | |
234 | .n = { | |
235 | .nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)), | |
236 | .nlmsg_type = RTM_GETLINK, | |
237 | .nlmsg_flags = NLM_F_REQUEST | |
238 | }, | |
239 | .i = { | |
240 | .ifi_family = preferred_family, | |
241 | .ifi_index = dev_index, | |
242 | } | |
243 | }; | |
244 | struct rtattr *tb[IFLA_MAX+1]; | |
245 | ||
246 | if (rtnl_talk(&rth, &req.n, &req.n, sizeof(req)) < 0) | |
247 | return -1; | |
248 | ||
249 | len = req.n.nlmsg_len - NLMSG_LENGTH(sizeof(req.i)); | |
250 | if (len < 0) | |
251 | return -1; | |
252 | ||
253 | parse_rtattr_flags(tb, IFLA_MAX, IFLA_RTA(&req.i), len, NLA_F_NESTED); | |
254 | if (!tb[IFLA_ADDRESS]) | |
255 | return -1; | |
256 | ||
257 | return RTA_PAYLOAD(tb[IFLA_ADDRESS]); | |
258 | } | |
259 | ||
56e9f0ab MS |
260 | static void iplink_parse_vf_vlan_info(int vf, int *argcp, char ***argvp, |
261 | struct ifla_vf_vlan_info *ivvip) | |
262 | { | |
263 | int argc = *argcp; | |
264 | char **argv = *argvp; | |
265 | ||
266 | NEXT_ARG(); | |
267 | if (get_unsigned(&ivvip->vlan, *argv, 0)) | |
268 | invarg("Invalid \"vlan\" value\n", *argv); | |
269 | ||
270 | ivvip->vf = vf; | |
271 | ivvip->qos = 0; | |
272 | ivvip->vlan_proto = htons(ETH_P_8021Q); | |
273 | if (NEXT_ARG_OK()) { | |
274 | NEXT_ARG(); | |
275 | if (matches(*argv, "qos") == 0) { | |
276 | NEXT_ARG(); | |
277 | if (get_unsigned(&ivvip->qos, *argv, 0)) | |
278 | invarg("Invalid \"qos\" value\n", *argv); | |
279 | } else { | |
280 | /* rewind arg */ | |
281 | PREV_ARG(); | |
282 | } | |
283 | } | |
284 | if (NEXT_ARG_OK()) { | |
285 | NEXT_ARG(); | |
286 | if (matches(*argv, "proto") == 0) { | |
287 | NEXT_ARG(); | |
288 | if (ll_proto_a2n(&ivvip->vlan_proto, *argv)) | |
289 | invarg("protocol is invalid\n", *argv); | |
290 | if (ivvip->vlan_proto != htons(ETH_P_8021AD) && | |
291 | ivvip->vlan_proto != htons(ETH_P_8021Q)) { | |
292 | SPRINT_BUF(b1); | |
293 | SPRINT_BUF(b2); | |
294 | char msg[64 + sizeof(b1) + sizeof(b2)]; | |
295 | ||
6773bcc2 | 296 | sprintf(msg, "Invalid \"vlan protocol\" value - supported %s, %s\n", |
56e9f0ab MS |
297 | ll_proto_n2a(htons(ETH_P_8021Q), |
298 | b1, sizeof(b1)), | |
299 | ll_proto_n2a(htons(ETH_P_8021AD), | |
300 | b2, sizeof(b2))); | |
301 | invarg(msg, *argv); | |
302 | } | |
303 | } else { | |
304 | /* rewind arg */ | |
305 | PREV_ARG(); | |
306 | } | |
307 | } | |
308 | ||
309 | *argcp = argc; | |
310 | *argvp = argv; | |
311 | } | |
312 | ||
d1f28cf1 | 313 | static int iplink_parse_vf(int vf, int *argcp, char ***argvp, |
f89a2a05 | 314 | struct iplink_req *req, int dev_index) |
3fd86630 | 315 | { |
f89a2a05 SC |
316 | char new_rate_api = 0, count = 0, override_legacy_rate = 0; |
317 | struct ifla_vf_rate tivt; | |
3fd86630 CW |
318 | int len, argc = *argcp; |
319 | char **argv = *argvp; | |
320 | struct rtattr *vfinfo; | |
1598b9ef | 321 | |
f89a2a05 SC |
322 | tivt.min_tx_rate = -1; |
323 | tivt.max_tx_rate = -1; | |
324 | ||
1598b9ef | 325 | vfinfo = addattr_nest(&req->n, sizeof(*req), IFLA_VF_INFO); |
3fd86630 | 326 | |
f89a2a05 SC |
327 | while (NEXT_ARG_OK()) { |
328 | NEXT_ARG(); | |
329 | count++; | |
330 | if (!matches(*argv, "max_tx_rate")) { | |
331 | /* new API in use */ | |
332 | new_rate_api = 1; | |
333 | /* override legacy rate */ | |
334 | override_legacy_rate = 1; | |
335 | } else if (!matches(*argv, "min_tx_rate")) { | |
336 | /* new API in use */ | |
337 | new_rate_api = 1; | |
338 | } | |
339 | } | |
340 | ||
341 | while (count--) { | |
342 | /* rewind arg */ | |
343 | PREV_ARG(); | |
344 | } | |
345 | ||
3fd86630 CW |
346 | while (NEXT_ARG_OK()) { |
347 | NEXT_ARG(); | |
1598b9ef | 348 | if (matches(*argv, "mac") == 0) { |
a89193a7 | 349 | struct ifla_vf_mac ivm = { 0 }; |
8fe58d58 | 350 | int halen = nl_get_ll_addr_len(dev_index); |
6c5ffb9a | 351 | |
3fd86630 | 352 | NEXT_ARG(); |
1598b9ef SH |
353 | ivm.vf = vf; |
354 | len = ll_addr_a2n((char *)ivm.mac, 32, *argv); | |
355 | if (len < 0) | |
356 | return -1; | |
8fe58d58 PS |
357 | if (halen > 0 && len != halen) { |
358 | fprintf(stderr, | |
359 | "Invalid address length %d - must be %d bytes\n", | |
360 | len, halen); | |
361 | return -1; | |
362 | } | |
ef0a738c SH |
363 | addattr_l(&req->n, sizeof(*req), IFLA_VF_MAC, |
364 | &ivm, sizeof(ivm)); | |
3fd86630 | 365 | } else if (matches(*argv, "vlan") == 0) { |
56e9f0ab | 366 | struct ifla_vf_vlan_info ivvi; |
6c5ffb9a | 367 | |
56e9f0ab MS |
368 | iplink_parse_vf_vlan_info(vf, &argc, &argv, &ivvi); |
369 | /* support the old interface in case of older kernel*/ | |
370 | if (ivvi.vlan_proto == htons(ETH_P_8021Q)) { | |
371 | struct ifla_vf_vlan ivv; | |
372 | ||
373 | ivv.vf = ivvi.vf; | |
374 | ivv.vlan = ivvi.vlan; | |
375 | ivv.qos = ivvi.qos; | |
376 | addattr_l(&req->n, sizeof(*req), | |
377 | IFLA_VF_VLAN, &ivv, sizeof(ivv)); | |
378 | } else { | |
379 | struct rtattr *vfvlanlist; | |
380 | ||
381 | vfvlanlist = addattr_nest(&req->n, sizeof(*req), | |
382 | IFLA_VF_VLAN_LIST); | |
383 | addattr_l(&req->n, sizeof(*req), | |
384 | IFLA_VF_VLAN_INFO, &ivvi, | |
385 | sizeof(ivvi)); | |
386 | ||
387 | while (NEXT_ARG_OK()) { | |
3fd86630 | 388 | NEXT_ARG(); |
56e9f0ab MS |
389 | if (matches(*argv, "vlan") != 0) { |
390 | PREV_ARG(); | |
391 | break; | |
392 | } | |
393 | iplink_parse_vf_vlan_info(vf, &argc, | |
394 | &argv, &ivvi); | |
395 | addattr_l(&req->n, sizeof(*req), | |
396 | IFLA_VF_VLAN_INFO, &ivvi, | |
397 | sizeof(ivvi)); | |
3fd86630 | 398 | } |
56e9f0ab | 399 | addattr_nest_end(&req->n, vfvlanlist); |
3fd86630 | 400 | } |
3fd86630 | 401 | } else if (matches(*argv, "rate") == 0) { |
1598b9ef | 402 | struct ifla_vf_tx_rate ivt; |
6c5ffb9a | 403 | |
3fd86630 | 404 | NEXT_ARG(); |
6c5ffb9a | 405 | if (get_unsigned(&ivt.rate, *argv, 0)) |
1598b9ef | 406 | invarg("Invalid \"rate\" value\n", *argv); |
6c5ffb9a | 407 | |
1598b9ef | 408 | ivt.vf = vf; |
f89a2a05 SC |
409 | if (!new_rate_api) |
410 | addattr_l(&req->n, sizeof(*req), | |
411 | IFLA_VF_TX_RATE, &ivt, sizeof(ivt)); | |
412 | else if (!override_legacy_rate) | |
413 | tivt.max_tx_rate = ivt.rate; | |
414 | ||
415 | } else if (matches(*argv, "max_tx_rate") == 0) { | |
416 | NEXT_ARG(); | |
417 | if (get_unsigned(&tivt.max_tx_rate, *argv, 0)) | |
418 | invarg("Invalid \"max tx rate\" value\n", | |
419 | *argv); | |
420 | tivt.vf = vf; | |
421 | ||
422 | } else if (matches(*argv, "min_tx_rate") == 0) { | |
423 | NEXT_ARG(); | |
424 | if (get_unsigned(&tivt.min_tx_rate, *argv, 0)) | |
425 | invarg("Invalid \"min tx rate\" value\n", | |
426 | *argv); | |
427 | tivt.vf = vf; | |
af89576d | 428 | |
7b8179c7 GR |
429 | } else if (matches(*argv, "spoofchk") == 0) { |
430 | struct ifla_vf_spoofchk ivs; | |
6c5ffb9a | 431 | |
7b8179c7 GR |
432 | NEXT_ARG(); |
433 | if (matches(*argv, "on") == 0) | |
434 | ivs.setting = 1; | |
435 | else if (matches(*argv, "off") == 0) | |
436 | ivs.setting = 0; | |
437 | else | |
ff1e35ed | 438 | return on_off("spoofchk", *argv); |
7b8179c7 | 439 | ivs.vf = vf; |
ef0a738c SH |
440 | addattr_l(&req->n, sizeof(*req), IFLA_VF_SPOOFCHK, |
441 | &ivs, sizeof(ivs)); | |
7b8179c7 | 442 | |
6c55c8c4 VZ |
443 | } else if (matches(*argv, "query_rss") == 0) { |
444 | struct ifla_vf_rss_query_en ivs; | |
6c5ffb9a | 445 | |
6c55c8c4 VZ |
446 | NEXT_ARG(); |
447 | if (matches(*argv, "on") == 0) | |
448 | ivs.setting = 1; | |
449 | else if (matches(*argv, "off") == 0) | |
450 | ivs.setting = 0; | |
451 | else | |
ff1e35ed | 452 | return on_off("query_rss", *argv); |
6c55c8c4 | 453 | ivs.vf = vf; |
ef0a738c SH |
454 | addattr_l(&req->n, sizeof(*req), IFLA_VF_RSS_QUERY_EN, |
455 | &ivs, sizeof(ivs)); | |
6c55c8c4 | 456 | |
b6d77d9e HS |
457 | } else if (matches(*argv, "trust") == 0) { |
458 | struct ifla_vf_trust ivt; | |
56f5daac | 459 | |
b6d77d9e HS |
460 | NEXT_ARG(); |
461 | if (matches(*argv, "on") == 0) | |
462 | ivt.setting = 1; | |
463 | else if (matches(*argv, "off") == 0) | |
464 | ivt.setting = 0; | |
465 | else | |
466 | invarg("Invalid \"trust\" value\n", *argv); | |
467 | ivt.vf = vf; | |
ef0a738c SH |
468 | addattr_l(&req->n, sizeof(*req), IFLA_VF_TRUST, |
469 | &ivt, sizeof(ivt)); | |
b6d77d9e | 470 | |
07fa9c15 RE |
471 | } else if (matches(*argv, "state") == 0) { |
472 | struct ifla_vf_link_state ivl; | |
6c5ffb9a | 473 | |
07fa9c15 RE |
474 | NEXT_ARG(); |
475 | if (matches(*argv, "auto") == 0) | |
476 | ivl.link_state = IFLA_VF_LINK_STATE_AUTO; | |
477 | else if (matches(*argv, "enable") == 0) | |
478 | ivl.link_state = IFLA_VF_LINK_STATE_ENABLE; | |
479 | else if (matches(*argv, "disable") == 0) | |
480 | ivl.link_state = IFLA_VF_LINK_STATE_DISABLE; | |
481 | else | |
482 | invarg("Invalid \"state\" value\n", *argv); | |
483 | ivl.vf = vf; | |
ef0a738c SH |
484 | addattr_l(&req->n, sizeof(*req), IFLA_VF_LINK_STATE, |
485 | &ivl, sizeof(ivl)); | |
d91fb3f4 EC |
486 | } else if (matches(*argv, "node_guid") == 0) { |
487 | struct ifla_vf_guid ivg; | |
488 | ||
489 | NEXT_ARG(); | |
490 | ivg.vf = vf; | |
491 | if (get_guid(&ivg.guid, *argv)) { | |
492 | invarg("Invalid GUID format\n", *argv); | |
493 | return -1; | |
494 | } | |
ef0a738c SH |
495 | addattr_l(&req->n, sizeof(*req), IFLA_VF_IB_NODE_GUID, |
496 | &ivg, sizeof(ivg)); | |
d91fb3f4 EC |
497 | } else if (matches(*argv, "port_guid") == 0) { |
498 | struct ifla_vf_guid ivg; | |
499 | ||
500 | NEXT_ARG(); | |
501 | ivg.vf = vf; | |
502 | if (get_guid(&ivg.guid, *argv)) { | |
503 | invarg("Invalid GUID format\n", *argv); | |
504 | return -1; | |
505 | } | |
ef0a738c SH |
506 | addattr_l(&req->n, sizeof(*req), IFLA_VF_IB_PORT_GUID, |
507 | &ivg, sizeof(ivg)); | |
3fd86630 CW |
508 | } else { |
509 | /* rewind arg */ | |
510 | PREV_ARG(); | |
511 | break; | |
512 | } | |
513 | } | |
514 | ||
f89a2a05 SC |
515 | if (new_rate_api) { |
516 | int tmin, tmax; | |
9a02651a | 517 | |
f89a2a05 SC |
518 | if (tivt.min_tx_rate == -1 || tivt.max_tx_rate == -1) { |
519 | ipaddr_get_vf_rate(tivt.vf, &tmin, &tmax, dev_index); | |
520 | if (tivt.min_tx_rate == -1) | |
521 | tivt.min_tx_rate = tmin; | |
522 | if (tivt.max_tx_rate == -1) | |
523 | tivt.max_tx_rate = tmax; | |
524 | } | |
525 | addattr_l(&req->n, sizeof(*req), IFLA_VF_RATE, &tivt, | |
526 | sizeof(tivt)); | |
527 | } | |
528 | ||
3fd86630 CW |
529 | if (argc == *argcp) |
530 | incomplete_command(); | |
531 | ||
1598b9ef | 532 | addattr_nest_end(&req->n, vfinfo); |
3fd86630 CW |
533 | |
534 | *argcp = argc; | |
535 | *argvp = argv; | |
1598b9ef | 536 | return 0; |
3fd86630 CW |
537 | } |
538 | ||
909dfe2c | 539 | int iplink_parse(int argc, char **argv, struct iplink_req *req, |
6c5ffb9a SH |
540 | char **name, char **type, char **link, char **dev, |
541 | int *group, int *index) | |
1d934839 | 542 | { |
909dfe2c PE |
543 | int ret, len; |
544 | char abuf[32]; | |
1d934839 PM |
545 | int qlen = -1; |
546 | int mtu = -1; | |
e2613dc8 | 547 | int netns = -1; |
ae7229d5 | 548 | int vf = -1; |
d992f3e6 JP |
549 | int numtxqueues = -1; |
550 | int numrxqueues = -1; | |
9a02651a | 551 | int dev_index = 0; |
ccdcbf35 | 552 | int link_netnsid = -1; |
8fe58d58 | 553 | int addr_len = 0; |
1d934839 | 554 | |
db02608b | 555 | *group = -1; |
909dfe2c | 556 | ret = argc; |
1d934839 PM |
557 | |
558 | while (argc > 0) { | |
559 | if (strcmp(*argv, "up") == 0) { | |
909dfe2c PE |
560 | req->i.ifi_change |= IFF_UP; |
561 | req->i.ifi_flags |= IFF_UP; | |
1d934839 | 562 | } else if (strcmp(*argv, "down") == 0) { |
909dfe2c PE |
563 | req->i.ifi_change |= IFF_UP; |
564 | req->i.ifi_flags &= ~IFF_UP; | |
1d934839 PM |
565 | } else if (strcmp(*argv, "name") == 0) { |
566 | NEXT_ARG(); | |
909dfe2c | 567 | *name = *argv; |
5e25cf77 PE |
568 | } else if (strcmp(*argv, "index") == 0) { |
569 | NEXT_ARG(); | |
570 | *index = atoi(*argv); | |
3c682146 WC |
571 | if (*index < 0) |
572 | invarg("Invalid \"index\" value", *argv); | |
1d934839 PM |
573 | } else if (matches(*argv, "link") == 0) { |
574 | NEXT_ARG(); | |
909dfe2c | 575 | *link = *argv; |
1d934839 PM |
576 | } else if (matches(*argv, "address") == 0) { |
577 | NEXT_ARG(); | |
8fe58d58 | 578 | addr_len = ll_addr_a2n(abuf, sizeof(abuf), *argv); |
0aae2346 | 579 | if (addr_len < 0) |
cb2eb999 | 580 | return -1; |
8fe58d58 | 581 | addattr_l(&req->n, sizeof(*req), IFLA_ADDRESS, abuf, addr_len); |
1d934839 | 582 | } else if (matches(*argv, "broadcast") == 0 || |
6c5ffb9a | 583 | strcmp(*argv, "brd") == 0) { |
1d934839 PM |
584 | NEXT_ARG(); |
585 | len = ll_addr_a2n(abuf, sizeof(abuf), *argv); | |
cb2eb999 AH |
586 | if (len < 0) |
587 | return -1; | |
909dfe2c | 588 | addattr_l(&req->n, sizeof(*req), IFLA_BROADCAST, abuf, len); |
1d934839 | 589 | } else if (matches(*argv, "txqueuelen") == 0 || |
6c5ffb9a SH |
590 | strcmp(*argv, "qlen") == 0 || |
591 | matches(*argv, "txqlen") == 0) { | |
1d934839 PM |
592 | NEXT_ARG(); |
593 | if (qlen != -1) | |
594 | duparg("txqueuelen", *argv); | |
595 | if (get_integer(&qlen, *argv, 0)) | |
596 | invarg("Invalid \"txqueuelen\" value\n", *argv); | |
909dfe2c | 597 | addattr_l(&req->n, sizeof(*req), IFLA_TXQLEN, &qlen, 4); |
1d934839 PM |
598 | } else if (strcmp(*argv, "mtu") == 0) { |
599 | NEXT_ARG(); | |
600 | if (mtu != -1) | |
601 | duparg("mtu", *argv); | |
602 | if (get_integer(&mtu, *argv, 0)) | |
603 | invarg("Invalid \"mtu\" value\n", *argv); | |
909dfe2c | 604 | addattr_l(&req->n, sizeof(*req), IFLA_MTU, &mtu, 4); |
4b726cb1 SH |
605 | } else if (strcmp(*argv, "netns") == 0) { |
606 | NEXT_ARG(); | |
607 | if (netns != -1) | |
608 | duparg("netns", *argv); | |
6c5ffb9a SH |
609 | netns = netns_get_fd(*argv); |
610 | if (netns >= 0) | |
ef0a738c SH |
611 | addattr_l(&req->n, sizeof(*req), IFLA_NET_NS_FD, |
612 | &netns, 4); | |
0dc34c77 | 613 | else if (get_integer(&netns, *argv, 0) == 0) |
ef0a738c SH |
614 | addattr_l(&req->n, sizeof(*req), IFLA_NET_NS_PID, |
615 | &netns, 4); | |
0dc34c77 | 616 | else |
4b726cb1 | 617 | invarg("Invalid \"netns\" value\n", *argv); |
1d934839 PM |
618 | } else if (strcmp(*argv, "multicast") == 0) { |
619 | NEXT_ARG(); | |
909dfe2c | 620 | req->i.ifi_change |= IFF_MULTICAST; |
6c5ffb9a SH |
621 | |
622 | if (strcmp(*argv, "on") == 0) | |
909dfe2c | 623 | req->i.ifi_flags |= IFF_MULTICAST; |
6c5ffb9a | 624 | else if (strcmp(*argv, "off") == 0) |
909dfe2c | 625 | req->i.ifi_flags &= ~IFF_MULTICAST; |
6c5ffb9a | 626 | else |
14645ec2 | 627 | return on_off("multicast", *argv); |
1d934839 PM |
628 | } else if (strcmp(*argv, "allmulticast") == 0) { |
629 | NEXT_ARG(); | |
909dfe2c | 630 | req->i.ifi_change |= IFF_ALLMULTI; |
6c5ffb9a SH |
631 | |
632 | if (strcmp(*argv, "on") == 0) | |
909dfe2c | 633 | req->i.ifi_flags |= IFF_ALLMULTI; |
6c5ffb9a | 634 | else if (strcmp(*argv, "off") == 0) |
909dfe2c | 635 | req->i.ifi_flags &= ~IFF_ALLMULTI; |
6c5ffb9a | 636 | else |
14645ec2 | 637 | return on_off("allmulticast", *argv); |
1d934839 PM |
638 | } else if (strcmp(*argv, "promisc") == 0) { |
639 | NEXT_ARG(); | |
909dfe2c | 640 | req->i.ifi_change |= IFF_PROMISC; |
6c5ffb9a SH |
641 | |
642 | if (strcmp(*argv, "on") == 0) | |
909dfe2c | 643 | req->i.ifi_flags |= IFF_PROMISC; |
6c5ffb9a | 644 | else if (strcmp(*argv, "off") == 0) |
909dfe2c | 645 | req->i.ifi_flags &= ~IFF_PROMISC; |
6c5ffb9a | 646 | else |
14645ec2 | 647 | return on_off("promisc", *argv); |
1d934839 PM |
648 | } else if (strcmp(*argv, "trailers") == 0) { |
649 | NEXT_ARG(); | |
909dfe2c | 650 | req->i.ifi_change |= IFF_NOTRAILERS; |
6c5ffb9a SH |
651 | |
652 | if (strcmp(*argv, "off") == 0) | |
909dfe2c | 653 | req->i.ifi_flags |= IFF_NOTRAILERS; |
6c5ffb9a | 654 | else if (strcmp(*argv, "on") == 0) |
909dfe2c | 655 | req->i.ifi_flags &= ~IFF_NOTRAILERS; |
6c5ffb9a | 656 | else |
14645ec2 | 657 | return on_off("trailers", *argv); |
1d934839 PM |
658 | } else if (strcmp(*argv, "arp") == 0) { |
659 | NEXT_ARG(); | |
909dfe2c | 660 | req->i.ifi_change |= IFF_NOARP; |
6c5ffb9a SH |
661 | |
662 | if (strcmp(*argv, "on") == 0) | |
909dfe2c | 663 | req->i.ifi_flags &= ~IFF_NOARP; |
6c5ffb9a | 664 | else if (strcmp(*argv, "off") == 0) |
909dfe2c | 665 | req->i.ifi_flags |= IFF_NOARP; |
6c5ffb9a | 666 | else |
e543a6a8 | 667 | return on_off("arp", *argv); |
ae7229d5 | 668 | } else if (strcmp(*argv, "vf") == 0) { |
1598b9ef | 669 | struct rtattr *vflist; |
6c5ffb9a | 670 | |
ae7229d5 | 671 | NEXT_ARG(); |
6c5ffb9a | 672 | if (get_integer(&vf, *argv, 0)) |
ae7229d5 | 673 | invarg("Invalid \"vf\" value\n", *argv); |
6c5ffb9a | 674 | |
1598b9ef SH |
675 | vflist = addattr_nest(&req->n, sizeof(*req), |
676 | IFLA_VFINFO_LIST); | |
9a02651a SH |
677 | if (dev_index == 0) |
678 | missarg("dev"); | |
679 | ||
f89a2a05 | 680 | len = iplink_parse_vf(vf, &argc, &argv, req, dev_index); |
1598b9ef SH |
681 | if (len < 0) |
682 | return -1; | |
683 | addattr_nest_end(&req->n, vflist); | |
a1e191b9 JP |
684 | } else if (matches(*argv, "master") == 0) { |
685 | int ifindex; | |
6c5ffb9a | 686 | |
a1e191b9 JP |
687 | NEXT_ARG(); |
688 | ifindex = ll_name_to_index(*argv); | |
689 | if (!ifindex) | |
690 | invarg("Device does not exist\n", *argv); | |
691 | addattr_l(&req->n, sizeof(*req), IFLA_MASTER, | |
692 | &ifindex, 4); | |
104444c2 DA |
693 | } else if (strcmp(*argv, "vrf") == 0) { |
694 | int ifindex; | |
695 | ||
696 | NEXT_ARG(); | |
697 | ifindex = ll_name_to_index(*argv); | |
698 | if (!ifindex) | |
699 | invarg("Not a valid VRF name\n", *argv); | |
700 | if (!name_is_vrf(*argv)) | |
701 | invarg("Not a valid VRF name\n", *argv); | |
702 | addattr_l(&req->n, sizeof(*req), IFLA_MASTER, | |
703 | &ifindex, sizeof(ifindex)); | |
a1e191b9 JP |
704 | } else if (matches(*argv, "nomaster") == 0) { |
705 | int ifindex = 0; | |
6c5ffb9a | 706 | |
a1e191b9 JP |
707 | addattr_l(&req->n, sizeof(*req), IFLA_MASTER, |
708 | &ifindex, 4); | |
1d934839 PM |
709 | } else if (matches(*argv, "dynamic") == 0) { |
710 | NEXT_ARG(); | |
909dfe2c | 711 | req->i.ifi_change |= IFF_DYNAMIC; |
6c5ffb9a SH |
712 | |
713 | if (strcmp(*argv, "on") == 0) | |
909dfe2c | 714 | req->i.ifi_flags |= IFF_DYNAMIC; |
6c5ffb9a | 715 | else if (strcmp(*argv, "off") == 0) |
909dfe2c | 716 | req->i.ifi_flags &= ~IFF_DYNAMIC; |
6c5ffb9a | 717 | else |
14645ec2 | 718 | return on_off("dynamic", *argv); |
1d934839 PM |
719 | } else if (matches(*argv, "type") == 0) { |
720 | NEXT_ARG(); | |
909dfe2c | 721 | *type = *argv; |
1d934839 PM |
722 | argc--; argv++; |
723 | break; | |
ace9c961 SH |
724 | } else if (matches(*argv, "alias") == 0) { |
725 | NEXT_ARG(); | |
726 | addattr_l(&req->n, sizeof(*req), IFLA_IFALIAS, | |
727 | *argv, strlen(*argv)); | |
728 | argc--; argv++; | |
729 | break; | |
db02608b VD |
730 | } else if (strcmp(*argv, "group") == 0) { |
731 | NEXT_ARG(); | |
732 | if (*group != -1) | |
733 | duparg("group", *argv); | |
734 | if (rtnl_group_a2n(group, *argv)) | |
735 | invarg("Invalid \"group\" value\n", *argv); | |
82499282 SH |
736 | } else if (strcmp(*argv, "mode") == 0) { |
737 | int mode; | |
6c5ffb9a | 738 | |
82499282 | 739 | NEXT_ARG(); |
4ccfb44d | 740 | mode = get_link_mode(*argv); |
82499282 SH |
741 | if (mode < 0) |
742 | invarg("Invalid link mode\n", *argv); | |
743 | addattr8(&req->n, sizeof(*req), IFLA_LINKMODE, mode); | |
4f2fdd44 SH |
744 | } else if (strcmp(*argv, "state") == 0) { |
745 | int state; | |
6c5ffb9a | 746 | |
4f2fdd44 SH |
747 | NEXT_ARG(); |
748 | state = get_operstate(*argv); | |
749 | if (state < 0) | |
750 | invarg("Invalid operstate\n", *argv); | |
751 | ||
752 | addattr8(&req->n, sizeof(*req), IFLA_OPERSTATE, state); | |
d992f3e6 JP |
753 | } else if (matches(*argv, "numtxqueues") == 0) { |
754 | NEXT_ARG(); | |
755 | if (numtxqueues != -1) | |
756 | duparg("numtxqueues", *argv); | |
757 | if (get_integer(&numtxqueues, *argv, 0)) | |
758 | invarg("Invalid \"numtxqueues\" value\n", *argv); | |
759 | addattr_l(&req->n, sizeof(*req), IFLA_NUM_TX_QUEUES, | |
760 | &numtxqueues, 4); | |
761 | } else if (matches(*argv, "numrxqueues") == 0) { | |
762 | NEXT_ARG(); | |
763 | if (numrxqueues != -1) | |
764 | duparg("numrxqueues", *argv); | |
765 | if (get_integer(&numrxqueues, *argv, 0)) | |
766 | invarg("Invalid \"numrxqueues\" value\n", *argv); | |
767 | addattr_l(&req->n, sizeof(*req), IFLA_NUM_RX_QUEUES, | |
768 | &numrxqueues, 4); | |
ff7c2084 JP |
769 | } else if (matches(*argv, "addrgenmode") == 0) { |
770 | struct rtattr *afs, *afs6; | |
771 | int mode; | |
6c5ffb9a | 772 | |
ff7c2084 JP |
773 | NEXT_ARG(); |
774 | mode = get_addr_gen_mode(*argv); | |
775 | if (mode < 0) | |
776 | invarg("Invalid address generation mode\n", *argv); | |
777 | afs = addattr_nest(&req->n, sizeof(*req), IFLA_AF_SPEC); | |
778 | afs6 = addattr_nest(&req->n, sizeof(*req), AF_INET6); | |
ef0a738c SH |
779 | addattr8(&req->n, sizeof(*req), |
780 | IFLA_INET6_ADDR_GEN_MODE, mode); | |
ff7c2084 JP |
781 | addattr_nest_end(&req->n, afs6); |
782 | addattr_nest_end(&req->n, afs); | |
ccdcbf35 ND |
783 | } else if (matches(*argv, "link-netnsid") == 0) { |
784 | NEXT_ARG(); | |
785 | if (link_netnsid != -1) | |
786 | duparg("link-netnsid", *argv); | |
787 | if (get_integer(&link_netnsid, *argv, 0)) | |
788 | invarg("Invalid \"link-netnsid\" value\n", *argv); | |
789 | addattr32(&req->n, sizeof(*req), IFLA_LINK_NETNSID, | |
790 | link_netnsid); | |
18864827 AK |
791 | } else if (strcmp(*argv, "protodown") == 0) { |
792 | unsigned int proto_down; | |
793 | ||
794 | NEXT_ARG(); | |
795 | if (strcmp(*argv, "on") == 0) | |
796 | proto_down = 1; | |
797 | else if (strcmp(*argv, "off") == 0) | |
798 | proto_down = 0; | |
799 | else | |
800 | return on_off("protodown", *argv); | |
801 | addattr8(&req->n, sizeof(*req), IFLA_PROTO_DOWN, | |
802 | proto_down); | |
1d934839 | 803 | } else { |
05325552 PM |
804 | if (matches(*argv, "help") == 0) |
805 | usage(); | |
940a96e6 PS |
806 | |
807 | if (strcmp(*argv, "dev") == 0) | |
808 | NEXT_ARG(); | |
909dfe2c | 809 | if (*dev) |
1d934839 | 810 | duparg2("dev", *argv); |
909dfe2c | 811 | *dev = *argv; |
f89a2a05 | 812 | dev_index = ll_name_to_index(*dev); |
1d934839 PM |
813 | } |
814 | argc--; argv++; | |
815 | } | |
816 | ||
8fe58d58 PS |
817 | if (dev_index && addr_len) { |
818 | int halen = nl_get_ll_addr_len(dev_index); | |
ef0a738c | 819 | |
8fe58d58 PS |
820 | if (halen >= 0 && halen != addr_len) { |
821 | fprintf(stderr, | |
ef0a738c SH |
822 | "Invalid address length %d - must be %d bytes\n", |
823 | addr_len, halen); | |
8fe58d58 PS |
824 | return -1; |
825 | } | |
826 | } | |
827 | ||
909dfe2c PE |
828 | return ret - argc; |
829 | } | |
830 | ||
831 | static int iplink_modify(int cmd, unsigned int flags, int argc, char **argv) | |
832 | { | |
833 | int len; | |
834 | char *dev = NULL; | |
835 | char *name = NULL; | |
836 | char *link = NULL; | |
837 | char *type = NULL; | |
3c682146 | 838 | int index = -1; |
db02608b | 839 | int group; |
909dfe2c | 840 | struct link_util *lu = NULL; |
d17b136f PS |
841 | struct iplink_req req = { |
842 | .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)), | |
843 | .n.nlmsg_flags = NLM_F_REQUEST | flags, | |
844 | .n.nlmsg_type = cmd, | |
845 | .i.ifi_family = preferred_family, | |
846 | }; | |
909dfe2c PE |
847 | int ret; |
848 | ||
ef0a738c SH |
849 | ret = iplink_parse(argc, argv, |
850 | &req, &name, &type, &link, &dev, &group, &index); | |
909dfe2c PE |
851 | if (ret < 0) |
852 | return ret; | |
853 | ||
854 | argc -= ret; | |
855 | argv += ret; | |
db02608b VD |
856 | |
857 | if (group != -1) { | |
858 | if (dev) | |
859 | addattr_l(&req.n, sizeof(req), IFLA_GROUP, | |
860 | &group, sizeof(group)); | |
861 | else { | |
862 | if (argc) { | |
6773bcc2 SH |
863 | fprintf(stderr, |
864 | "Garbage instead of arguments \"%s ...\". Try \"ip link help\".\n", | |
865 | *argv); | |
db02608b VD |
866 | return -1; |
867 | } | |
868 | if (flags & NLM_F_CREATE) { | |
56f5daac | 869 | fprintf(stderr, "group cannot be used when creating devices.\n"); |
db02608b VD |
870 | return -1; |
871 | } | |
872 | ||
873 | req.i.ifi_index = 0; | |
874 | addattr32(&req.n, sizeof(req), IFLA_GROUP, group); | |
c079e121 | 875 | if (rtnl_talk(&rth, &req.n, NULL, 0) < 0) |
f921f567 | 876 | return -2; |
db02608b VD |
877 | return 0; |
878 | } | |
879 | } | |
880 | ||
1d934839 PM |
881 | if (!(flags & NLM_F_CREATE)) { |
882 | if (!dev) { | |
56f5daac | 883 | fprintf(stderr, "Not enough information: \"dev\" argument is required.\n"); |
1d934839 PM |
884 | exit(-1); |
885 | } | |
3c682146 | 886 | if (cmd == RTM_NEWLINK && index != -1) { |
56f5daac | 887 | fprintf(stderr, "index can be used only when creating devices.\n"); |
3c682146 WC |
888 | exit(-1); |
889 | } | |
1d934839 PM |
890 | |
891 | req.i.ifi_index = ll_name_to_index(dev); | |
892 | if (req.i.ifi_index == 0) { | |
893 | fprintf(stderr, "Cannot find device \"%s\"\n", dev); | |
894 | return -1; | |
895 | } | |
896 | } else { | |
897 | /* Allow "ip link add dev" and "ip link add name" */ | |
898 | if (!name) | |
899 | name = dev; | |
900 | ||
901 | if (link) { | |
902 | int ifindex; | |
903 | ||
904 | ifindex = ll_name_to_index(link); | |
905 | if (ifindex == 0) { | |
906 | fprintf(stderr, "Cannot find device \"%s\"\n", | |
907 | link); | |
908 | return -1; | |
909 | } | |
910 | addattr_l(&req.n, sizeof(req), IFLA_LINK, &ifindex, 4); | |
911 | } | |
5e25cf77 | 912 | |
68ac9ab3 AW |
913 | if (index == -1) |
914 | req.i.ifi_index = 0; | |
915 | else | |
916 | req.i.ifi_index = index; | |
1d934839 PM |
917 | } |
918 | ||
919 | if (name) { | |
920 | len = strlen(name) + 1; | |
ca78b0e7 | 921 | if (len == 1) |
ef0a738c SH |
922 | invarg("\"\" is not a valid device identifier\n", |
923 | "name"); | |
1d934839 | 924 | if (len > IFNAMSIZ) |
ca78b0e7 | 925 | invarg("\"name\" too long\n", name); |
1d934839 PM |
926 | addattr_l(&req.n, sizeof(req), IFLA_IFNAME, name, len); |
927 | } | |
928 | ||
09fa3279 | 929 | if (type) { |
a1e2e5fc | 930 | struct rtattr *linkinfo; |
22a84711 | 931 | char *ulinep = strchr(type, '_'); |
620ddeda NA |
932 | int iflatype; |
933 | ||
a1e2e5fc | 934 | linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO); |
09fa3279 SH |
935 | addattr_l(&req.n, sizeof(req), IFLA_INFO_KIND, type, |
936 | strlen(type)); | |
937 | ||
22a84711 HL |
938 | lu = get_link_kind(type); |
939 | if (ulinep && !strcmp(ulinep, "_slave")) | |
620ddeda | 940 | iflatype = IFLA_INFO_SLAVE_DATA; |
22a84711 | 941 | else |
620ddeda | 942 | iflatype = IFLA_INFO_DATA; |
09fa3279 | 943 | if (lu && argc) { |
ef0a738c SH |
944 | struct rtattr *data = addattr_nest(&req.n, |
945 | sizeof(req), iflatype); | |
09fa3279 SH |
946 | |
947 | if (lu->parse_opt && | |
948 | lu->parse_opt(lu, argc, argv, &req.n)) | |
949 | return -1; | |
950 | ||
a1e2e5fc | 951 | addattr_nest_end(&req.n, data); |
09fa3279 SH |
952 | } else if (argc) { |
953 | if (matches(*argv, "help") == 0) | |
954 | usage(); | |
6773bcc2 SH |
955 | fprintf(stderr, |
956 | "Garbage instead of arguments \"%s ...\". Try \"ip link help\".\n", | |
957 | *argv); | |
09fa3279 SH |
958 | return -1; |
959 | } | |
a1e2e5fc | 960 | addattr_nest_end(&req.n, linkinfo); |
09fa3279 | 961 | } else if (flags & NLM_F_CREATE) { |
56f5daac | 962 | fprintf(stderr, "Not enough information: \"type\" argument is required\n"); |
09fa3279 SH |
963 | return -1; |
964 | } | |
965 | ||
c079e121 | 966 | if (rtnl_talk(&rth, &req.n, NULL, 0) < 0) |
f921f567 | 967 | return -2; |
1d934839 PM |
968 | |
969 | return 0; | |
970 | } | |
971 | ||
50b9950d RP |
972 | int iplink_get(unsigned int flags, char *name, __u32 filt_mask) |
973 | { | |
974 | int len; | |
d17b136f PS |
975 | struct iplink_req req = { |
976 | .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)), | |
977 | .n.nlmsg_flags = NLM_F_REQUEST | flags, | |
978 | .n.nlmsg_type = RTM_GETLINK, | |
979 | .i.ifi_family = preferred_family, | |
980 | }; | |
c079e121 SH |
981 | struct { |
982 | struct nlmsghdr n; | |
983 | char buf[16384]; | |
984 | } answer; | |
50b9950d | 985 | |
50b9950d RP |
986 | if (name) { |
987 | len = strlen(name) + 1; | |
988 | if (len == 1) | |
989 | invarg("\"\" is not a valid device identifier\n", | |
990 | "name"); | |
991 | if (len > IFNAMSIZ) | |
992 | invarg("\"name\" too long\n", name); | |
993 | addattr_l(&req.n, sizeof(req), IFLA_IFNAME, name, len); | |
994 | } | |
995 | addattr32(&req.n, sizeof(req), IFLA_EXT_MASK, filt_mask); | |
996 | ||
c079e121 | 997 | if (rtnl_talk(&rth, &req.n, &answer.n, sizeof(answer)) < 0) |
50b9950d RP |
998 | return -2; |
999 | ||
5d295bb8 AG |
1000 | if (brief) |
1001 | print_linkinfo_brief(NULL, &answer.n, stdout); | |
1002 | else | |
1003 | print_linkinfo(NULL, &answer.n, stdout); | |
50b9950d RP |
1004 | |
1005 | return 0; | |
1006 | } | |
1007 | ||
1d934839 | 1008 | #if IPLINK_IOCTL_COMPAT |
aba5acdf SH |
1009 | static int get_ctl_fd(void) |
1010 | { | |
1011 | int s_errno; | |
1012 | int fd; | |
1013 | ||
1014 | fd = socket(PF_INET, SOCK_DGRAM, 0); | |
1015 | if (fd >= 0) | |
1016 | return fd; | |
1017 | s_errno = errno; | |
1018 | fd = socket(PF_PACKET, SOCK_DGRAM, 0); | |
1019 | if (fd >= 0) | |
1020 | return fd; | |
1021 | fd = socket(PF_INET6, SOCK_DGRAM, 0); | |
1022 | if (fd >= 0) | |
1023 | return fd; | |
1024 | errno = s_errno; | |
1025 | perror("Cannot create control socket"); | |
1026 | return -1; | |
1027 | } | |
1028 | ||
71058eb8 | 1029 | static int do_chflags(const char *dev, __u32 flags, __u32 mask) |
aba5acdf SH |
1030 | { |
1031 | struct ifreq ifr; | |
1032 | int fd; | |
1033 | int err; | |
1034 | ||
71058eb8 | 1035 | strncpy(ifr.ifr_name, dev, IFNAMSIZ); |
aba5acdf SH |
1036 | fd = get_ctl_fd(); |
1037 | if (fd < 0) | |
1038 | return -1; | |
1039 | err = ioctl(fd, SIOCGIFFLAGS, &ifr); | |
1040 | if (err) { | |
1041 | perror("SIOCGIFFLAGS"); | |
1042 | close(fd); | |
1043 | return -1; | |
1044 | } | |
1045 | if ((ifr.ifr_flags^flags)&mask) { | |
1046 | ifr.ifr_flags &= ~mask; | |
1047 | ifr.ifr_flags |= mask&flags; | |
1048 | err = ioctl(fd, SIOCSIFFLAGS, &ifr); | |
1049 | if (err) | |
1050 | perror("SIOCSIFFLAGS"); | |
1051 | } | |
1052 | close(fd); | |
1053 | return err; | |
1054 | } | |
1055 | ||
71058eb8 | 1056 | static int do_changename(const char *dev, const char *newdev) |
aba5acdf SH |
1057 | { |
1058 | struct ifreq ifr; | |
1059 | int fd; | |
1060 | int err; | |
1061 | ||
71058eb8 SH |
1062 | strncpy(ifr.ifr_name, dev, IFNAMSIZ); |
1063 | strncpy(ifr.ifr_newname, newdev, IFNAMSIZ); | |
aba5acdf SH |
1064 | fd = get_ctl_fd(); |
1065 | if (fd < 0) | |
1066 | return -1; | |
1067 | err = ioctl(fd, SIOCSIFNAME, &ifr); | |
1068 | if (err) { | |
1069 | perror("SIOCSIFNAME"); | |
1070 | close(fd); | |
1071 | return -1; | |
1072 | } | |
1073 | close(fd); | |
1074 | return err; | |
1075 | } | |
1076 | ||
71058eb8 | 1077 | static int set_qlen(const char *dev, int qlen) |
aba5acdf | 1078 | { |
d17b136f | 1079 | struct ifreq ifr = { .ifr_qlen = qlen }; |
aba5acdf SH |
1080 | int s; |
1081 | ||
1082 | s = get_ctl_fd(); | |
1083 | if (s < 0) | |
1084 | return -1; | |
1085 | ||
ae665a52 | 1086 | strncpy(ifr.ifr_name, dev, IFNAMSIZ); |
aba5acdf SH |
1087 | if (ioctl(s, SIOCSIFTXQLEN, &ifr) < 0) { |
1088 | perror("SIOCSIFXQLEN"); | |
1089 | close(s); | |
1090 | return -1; | |
1091 | } | |
1092 | close(s); | |
1093 | ||
ae665a52 | 1094 | return 0; |
aba5acdf SH |
1095 | } |
1096 | ||
71058eb8 | 1097 | static int set_mtu(const char *dev, int mtu) |
aba5acdf | 1098 | { |
d17b136f | 1099 | struct ifreq ifr = { .ifr_mtu = mtu }; |
aba5acdf SH |
1100 | int s; |
1101 | ||
1102 | s = get_ctl_fd(); | |
1103 | if (s < 0) | |
1104 | return -1; | |
1105 | ||
ae665a52 | 1106 | strncpy(ifr.ifr_name, dev, IFNAMSIZ); |
aba5acdf SH |
1107 | if (ioctl(s, SIOCSIFMTU, &ifr) < 0) { |
1108 | perror("SIOCSIFMTU"); | |
1109 | close(s); | |
1110 | return -1; | |
1111 | } | |
1112 | close(s); | |
1113 | ||
ae665a52 | 1114 | return 0; |
aba5acdf SH |
1115 | } |
1116 | ||
71058eb8 | 1117 | static int get_address(const char *dev, int *htype) |
aba5acdf | 1118 | { |
d17b136f PS |
1119 | struct ifreq ifr = {}; |
1120 | struct sockaddr_ll me = { | |
1121 | .sll_family = AF_PACKET, | |
1122 | .sll_protocol = htons(ETH_P_LOOP), | |
1123 | }; | |
f332d169 | 1124 | socklen_t alen; |
aba5acdf SH |
1125 | int s; |
1126 | ||
1127 | s = socket(PF_PACKET, SOCK_DGRAM, 0); | |
ae665a52 | 1128 | if (s < 0) { |
aba5acdf SH |
1129 | perror("socket(PF_PACKET)"); |
1130 | return -1; | |
1131 | } | |
1132 | ||
71058eb8 | 1133 | strncpy(ifr.ifr_name, dev, IFNAMSIZ); |
aba5acdf SH |
1134 | if (ioctl(s, SIOCGIFINDEX, &ifr) < 0) { |
1135 | perror("SIOCGIFINDEX"); | |
1136 | close(s); | |
1137 | return -1; | |
1138 | } | |
1139 | ||
aba5acdf | 1140 | me.sll_ifindex = ifr.ifr_ifindex; |
6c5ffb9a | 1141 | if (bind(s, (struct sockaddr *)&me, sizeof(me)) == -1) { |
aba5acdf SH |
1142 | perror("bind"); |
1143 | close(s); | |
1144 | return -1; | |
1145 | } | |
1146 | ||
1147 | alen = sizeof(me); | |
6c5ffb9a | 1148 | if (getsockname(s, (struct sockaddr *)&me, &alen) == -1) { |
aba5acdf SH |
1149 | perror("getsockname"); |
1150 | close(s); | |
1151 | return -1; | |
1152 | } | |
1153 | close(s); | |
1154 | *htype = me.sll_hatype; | |
1155 | return me.sll_halen; | |
1156 | } | |
1157 | ||
ae665a52 | 1158 | static int parse_address(const char *dev, int hatype, int halen, |
7b565754 | 1159 | char *lla, struct ifreq *ifr) |
aba5acdf SH |
1160 | { |
1161 | int alen; | |
1162 | ||
1163 | memset(ifr, 0, sizeof(*ifr)); | |
71058eb8 | 1164 | strncpy(ifr->ifr_name, dev, IFNAMSIZ); |
aba5acdf SH |
1165 | ifr->ifr_hwaddr.sa_family = hatype; |
1166 | alen = ll_addr_a2n(ifr->ifr_hwaddr.sa_data, 14, lla); | |
1167 | if (alen < 0) | |
1168 | return -1; | |
1169 | if (alen != halen) { | |
ef0a738c SH |
1170 | fprintf(stderr, "Wrong address (%s) length: expected %d bytes\n", |
1171 | lla, halen); | |
aba5acdf SH |
1172 | return -1; |
1173 | } | |
ae665a52 | 1174 | return 0; |
aba5acdf SH |
1175 | } |
1176 | ||
1177 | static int set_address(struct ifreq *ifr, int brd) | |
1178 | { | |
1179 | int s; | |
1180 | ||
1181 | s = get_ctl_fd(); | |
1182 | if (s < 0) | |
1183 | return -1; | |
1184 | if (ioctl(s, brd?SIOCSIFHWBROADCAST:SIOCSIFHWADDR, ifr) < 0) { | |
1185 | perror(brd?"SIOCSIFHWBROADCAST":"SIOCSIFHWADDR"); | |
1186 | close(s); | |
1187 | return -1; | |
1188 | } | |
1189 | close(s); | |
ae665a52 | 1190 | return 0; |
aba5acdf SH |
1191 | } |
1192 | ||
aba5acdf SH |
1193 | static int do_set(int argc, char **argv) |
1194 | { | |
1195 | char *dev = NULL; | |
1196 | __u32 mask = 0; | |
1197 | __u32 flags = 0; | |
1198 | int qlen = -1; | |
1199 | int mtu = -1; | |
1200 | char *newaddr = NULL; | |
1201 | char *newbrd = NULL; | |
1202 | struct ifreq ifr0, ifr1; | |
1203 | char *newname = NULL; | |
1204 | int htype, halen; | |
1205 | ||
1206 | while (argc > 0) { | |
1207 | if (strcmp(*argv, "up") == 0) { | |
1208 | mask |= IFF_UP; | |
1209 | flags |= IFF_UP; | |
1210 | } else if (strcmp(*argv, "down") == 0) { | |
1211 | mask |= IFF_UP; | |
1212 | flags &= ~IFF_UP; | |
1213 | } else if (strcmp(*argv, "name") == 0) { | |
1214 | NEXT_ARG(); | |
1215 | newname = *argv; | |
1216 | } else if (matches(*argv, "address") == 0) { | |
1217 | NEXT_ARG(); | |
1218 | newaddr = *argv; | |
1219 | } else if (matches(*argv, "broadcast") == 0 || | |
1220 | strcmp(*argv, "brd") == 0) { | |
1221 | NEXT_ARG(); | |
1222 | newbrd = *argv; | |
1223 | } else if (matches(*argv, "txqueuelen") == 0 || | |
1224 | strcmp(*argv, "qlen") == 0 || | |
1225 | matches(*argv, "txqlen") == 0) { | |
1226 | NEXT_ARG(); | |
1227 | if (qlen != -1) | |
1228 | duparg("txqueuelen", *argv); | |
1229 | if (get_integer(&qlen, *argv, 0)) | |
1230 | invarg("Invalid \"txqueuelen\" value\n", *argv); | |
1231 | } else if (strcmp(*argv, "mtu") == 0) { | |
1232 | NEXT_ARG(); | |
1233 | if (mtu != -1) | |
1234 | duparg("mtu", *argv); | |
1235 | if (get_integer(&mtu, *argv, 0)) | |
1236 | invarg("Invalid \"mtu\" value\n", *argv); | |
1237 | } else if (strcmp(*argv, "multicast") == 0) { | |
1238 | NEXT_ARG(); | |
1239 | mask |= IFF_MULTICAST; | |
6c5ffb9a SH |
1240 | |
1241 | if (strcmp(*argv, "on") == 0) | |
aba5acdf | 1242 | flags |= IFF_MULTICAST; |
6c5ffb9a | 1243 | else if (strcmp(*argv, "off") == 0) |
aba5acdf | 1244 | flags &= ~IFF_MULTICAST; |
6c5ffb9a | 1245 | else |
14645ec2 | 1246 | return on_off("multicast", *argv); |
d27b1b5b | 1247 | } else if (strcmp(*argv, "allmulticast") == 0) { |
1248 | NEXT_ARG(); | |
1249 | mask |= IFF_ALLMULTI; | |
6c5ffb9a SH |
1250 | |
1251 | if (strcmp(*argv, "on") == 0) | |
d27b1b5b | 1252 | flags |= IFF_ALLMULTI; |
6c5ffb9a | 1253 | else if (strcmp(*argv, "off") == 0) |
d27b1b5b | 1254 | flags &= ~IFF_ALLMULTI; |
6c5ffb9a | 1255 | else |
14645ec2 | 1256 | return on_off("allmulticast", *argv); |
d27b1b5b | 1257 | } else if (strcmp(*argv, "promisc") == 0) { |
1258 | NEXT_ARG(); | |
1259 | mask |= IFF_PROMISC; | |
6c5ffb9a SH |
1260 | |
1261 | if (strcmp(*argv, "on") == 0) | |
d27b1b5b | 1262 | flags |= IFF_PROMISC; |
6c5ffb9a | 1263 | else if (strcmp(*argv, "off") == 0) |
d27b1b5b | 1264 | flags &= ~IFF_PROMISC; |
6c5ffb9a | 1265 | else |
14645ec2 | 1266 | return on_off("promisc", *argv); |
d27b1b5b | 1267 | } else if (strcmp(*argv, "trailers") == 0) { |
1268 | NEXT_ARG(); | |
1269 | mask |= IFF_NOTRAILERS; | |
6c5ffb9a SH |
1270 | |
1271 | if (strcmp(*argv, "off") == 0) | |
d27b1b5b | 1272 | flags |= IFF_NOTRAILERS; |
6c5ffb9a | 1273 | else if (strcmp(*argv, "on") == 0) |
d27b1b5b | 1274 | flags &= ~IFF_NOTRAILERS; |
6c5ffb9a | 1275 | else |
14645ec2 | 1276 | return on_off("trailers", *argv); |
aba5acdf SH |
1277 | } else if (strcmp(*argv, "arp") == 0) { |
1278 | NEXT_ARG(); | |
1279 | mask |= IFF_NOARP; | |
6c5ffb9a SH |
1280 | |
1281 | if (strcmp(*argv, "on") == 0) | |
aba5acdf | 1282 | flags &= ~IFF_NOARP; |
6c5ffb9a | 1283 | else if (strcmp(*argv, "off") == 0) |
aba5acdf | 1284 | flags |= IFF_NOARP; |
6c5ffb9a | 1285 | else |
ff1e35ed | 1286 | return on_off("arp", *argv); |
aba5acdf SH |
1287 | } else if (matches(*argv, "dynamic") == 0) { |
1288 | NEXT_ARG(); | |
1289 | mask |= IFF_DYNAMIC; | |
6c5ffb9a SH |
1290 | |
1291 | if (strcmp(*argv, "on") == 0) | |
aba5acdf | 1292 | flags |= IFF_DYNAMIC; |
6c5ffb9a | 1293 | else if (strcmp(*argv, "off") == 0) |
aba5acdf | 1294 | flags &= ~IFF_DYNAMIC; |
6c5ffb9a | 1295 | else |
14645ec2 | 1296 | return on_off("dynamic", *argv); |
aba5acdf | 1297 | } else { |
6c5ffb9a | 1298 | if (strcmp(*argv, "dev") == 0) |
aba5acdf | 1299 | NEXT_ARG(); |
8aacb9bb | 1300 | else if (matches(*argv, "help") == 0) |
aba5acdf | 1301 | usage(); |
6c5ffb9a | 1302 | |
aba5acdf SH |
1303 | if (dev) |
1304 | duparg2("dev", *argv); | |
1305 | dev = *argv; | |
1306 | } | |
1307 | argc--; argv++; | |
1308 | } | |
1309 | ||
1310 | if (!dev) { | |
ef0a738c SH |
1311 | fprintf(stderr, |
1312 | "Not enough of information: \"dev\" argument is required.\n"); | |
aba5acdf SH |
1313 | exit(-1); |
1314 | } | |
1315 | ||
1316 | if (newaddr || newbrd) { | |
1317 | halen = get_address(dev, &htype); | |
1318 | if (halen < 0) | |
1319 | return -1; | |
1320 | if (newaddr) { | |
1321 | if (parse_address(dev, htype, halen, newaddr, &ifr0) < 0) | |
1322 | return -1; | |
1323 | } | |
1324 | if (newbrd) { | |
1325 | if (parse_address(dev, htype, halen, newbrd, &ifr1) < 0) | |
ae665a52 | 1326 | return -1; |
aba5acdf SH |
1327 | } |
1328 | } | |
1329 | ||
1330 | if (newname && strcmp(dev, newname)) { | |
ca78b0e7 PM |
1331 | if (strlen(newname) == 0) |
1332 | invarg("\"\" is not a valid device identifier\n", "name"); | |
aba5acdf SH |
1333 | if (do_changename(dev, newname) < 0) |
1334 | return -1; | |
1335 | dev = newname; | |
1336 | } | |
ae665a52 | 1337 | if (qlen != -1) { |
aba5acdf | 1338 | if (set_qlen(dev, qlen) < 0) |
ae665a52 | 1339 | return -1; |
aba5acdf | 1340 | } |
ae665a52 | 1341 | if (mtu != -1) { |
aba5acdf | 1342 | if (set_mtu(dev, mtu) < 0) |
ae665a52 | 1343 | return -1; |
aba5acdf SH |
1344 | } |
1345 | if (newaddr || newbrd) { | |
1346 | if (newbrd) { | |
1347 | if (set_address(&ifr1, 1) < 0) | |
ae665a52 | 1348 | return -1; |
aba5acdf SH |
1349 | } |
1350 | if (newaddr) { | |
1351 | if (set_address(&ifr0, 0) < 0) | |
1352 | return -1; | |
1353 | } | |
1354 | } | |
1355 | if (mask) | |
1356 | return do_chflags(dev, flags, mask); | |
1357 | return 0; | |
1358 | } | |
1d934839 | 1359 | #endif /* IPLINK_IOCTL_COMPAT */ |
aba5acdf | 1360 | |
561e650e | 1361 | static void do_help(int argc, char **argv) |
1362 | { | |
1363 | struct link_util *lu = NULL; | |
1364 | ||
1365 | if (argc <= 0) { | |
1366 | usage(); | |
6c5ffb9a | 1367 | return; |
561e650e | 1368 | } |
1369 | ||
1370 | lu = get_link_kind(*argv); | |
561e650e | 1371 | if (lu && lu->print_help) |
1372 | lu->print_help(lu, argc-1, argv+1, stdout); | |
1373 | else | |
1374 | usage(); | |
1375 | } | |
1376 | ||
aba5acdf SH |
1377 | int do_iplink(int argc, char **argv) |
1378 | { | |
6843d36e ZS |
1379 | if (argc < 1) |
1380 | return ipaddr_list_link(0, NULL); | |
1381 | ||
1382 | if (iplink_have_newlink()) { | |
1383 | if (matches(*argv, "add") == 0) | |
1384 | return iplink_modify(RTM_NEWLINK, | |
6c5ffb9a SH |
1385 | NLM_F_CREATE|NLM_F_EXCL, |
1386 | argc-1, argv+1); | |
6843d36e | 1387 | if (matches(*argv, "set") == 0 || |
6c5ffb9a | 1388 | matches(*argv, "change") == 0) |
6843d36e | 1389 | return iplink_modify(RTM_NEWLINK, 0, |
6c5ffb9a | 1390 | argc-1, argv+1); |
6843d36e ZS |
1391 | if (matches(*argv, "replace") == 0) |
1392 | return iplink_modify(RTM_NEWLINK, | |
6c5ffb9a SH |
1393 | NLM_F_CREATE|NLM_F_REPLACE, |
1394 | argc-1, argv+1); | |
6843d36e ZS |
1395 | if (matches(*argv, "delete") == 0) |
1396 | return iplink_modify(RTM_DELLINK, 0, | |
6c5ffb9a | 1397 | argc-1, argv+1); |
6843d36e | 1398 | } else { |
1d934839 | 1399 | #if IPLINK_IOCTL_COMPAT |
6843d36e ZS |
1400 | if (matches(*argv, "set") == 0) |
1401 | return do_set(argc-1, argv+1); | |
1d934839 | 1402 | #endif |
6843d36e | 1403 | } |
6c5ffb9a | 1404 | |
6843d36e | 1405 | if (matches(*argv, "show") == 0 || |
6c5ffb9a SH |
1406 | matches(*argv, "lst") == 0 || |
1407 | matches(*argv, "list") == 0) | |
6843d36e | 1408 | return ipaddr_list_link(argc-1, argv+1); |
6c5ffb9a | 1409 | |
6843d36e ZS |
1410 | if (matches(*argv, "help") == 0) { |
1411 | do_help(argc-1, argv+1); | |
1412 | return 0; | |
1413 | } | |
aba5acdf | 1414 | |
6843d36e | 1415 | fprintf(stderr, "Command \"%s\" is unknown, try \"ip link help\".\n", |
6c5ffb9a | 1416 | *argv); |
aba5acdf SH |
1417 | exit(-1); |
1418 | } |