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Commit | Line | Data |
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aba5acdf SH |
1 | /* |
2 | * iptunnel.c "ip tunnel" | |
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 | * | |
aba5acdf SH |
11 | */ |
12 | ||
13 | #include <stdio.h> | |
14 | #include <stdlib.h> | |
15 | #include <string.h> | |
16 | #include <unistd.h> | |
d9bd1bd9 | 17 | #include <sys/types.h> |
aba5acdf | 18 | #include <sys/socket.h> |
7272ddc7 | 19 | #include <arpa/inet.h> |
aba5acdf SH |
20 | #include <sys/ioctl.h> |
21 | #include <linux/if.h> | |
22 | #include <linux/if_arp.h> | |
7272ddc7 | 23 | #include <linux/ip.h> |
aba5acdf SH |
24 | #include <linux/if_tunnel.h> |
25 | ||
26 | #include "rt_names.h" | |
27 | #include "utils.h" | |
288384f2 | 28 | #include "ip_common.h" |
d9bd1bd9 | 29 | #include "tunnel.h" |
aba5acdf SH |
30 | |
31 | static void usage(void) __attribute__((noreturn)); | |
32 | ||
33 | static void usage(void) | |
34 | { | |
a07e9912 | 35 | fprintf(stderr, "Usage: ip tunnel { add | change | del | show | prl } [ NAME ]\n"); |
0bd17929 | 36 | fprintf(stderr, " [ mode { ipip | gre | sit | isatap } ] [ remote ADDR ] [ local ADDR ]\n"); |
aba5acdf | 37 | fprintf(stderr, " [ [i|o]seq ] [ [i|o]key KEY ] [ [i|o]csum ]\n"); |
a07e9912 | 38 | fprintf(stderr, " [ prl-default ADDR ] [ prl-nodefault ADDR ] [ prl-delete ADDR ]\n"); |
aba5acdf SH |
39 | fprintf(stderr, " [ ttl TTL ] [ tos TOS ] [ [no]pmtudisc ] [ dev PHYS_DEV ]\n"); |
40 | fprintf(stderr, "\n"); | |
41 | fprintf(stderr, "Where: NAME := STRING\n"); | |
42 | fprintf(stderr, " ADDR := { IP_ADDRESS | any }\n"); | |
43 | fprintf(stderr, " TOS := { NUMBER | inherit }\n"); | |
44 | fprintf(stderr, " TTL := { 1..255 | inherit }\n"); | |
45 | fprintf(stderr, " KEY := { DOTTED_QUAD | NUMBER }\n"); | |
46 | exit(-1); | |
47 | } | |
48 | ||
aba5acdf SH |
49 | static int parse_args(int argc, char **argv, int cmd, struct ip_tunnel_parm *p) |
50 | { | |
51 | int count = 0; | |
52 | char medium[IFNAMSIZ]; | |
0bd17929 | 53 | int isatap = 0; |
aba5acdf SH |
54 | |
55 | memset(p, 0, sizeof(*p)); | |
56 | memset(&medium, 0, sizeof(medium)); | |
57 | ||
58 | p->iph.version = 4; | |
59 | p->iph.ihl = 5; | |
60 | #ifndef IP_DF | |
61 | #define IP_DF 0x4000 /* Flag: "Don't Fragment" */ | |
62 | #endif | |
63 | p->iph.frag_off = htons(IP_DF); | |
64 | ||
65 | while (argc > 0) { | |
66 | if (strcmp(*argv, "mode") == 0) { | |
67 | NEXT_ARG(); | |
68 | if (strcmp(*argv, "ipip") == 0 || | |
69 | strcmp(*argv, "ip/ip") == 0) { | |
70 | if (p->iph.protocol && p->iph.protocol != IPPROTO_IPIP) { | |
71 | fprintf(stderr,"You managed to ask for more than one tunnel mode.\n"); | |
72 | exit(-1); | |
73 | } | |
74 | p->iph.protocol = IPPROTO_IPIP; | |
75 | } else if (strcmp(*argv, "gre") == 0 || | |
76 | strcmp(*argv, "gre/ip") == 0) { | |
77 | if (p->iph.protocol && p->iph.protocol != IPPROTO_GRE) { | |
78 | fprintf(stderr,"You managed to ask for more than one tunnel mode.\n"); | |
79 | exit(-1); | |
80 | } | |
81 | p->iph.protocol = IPPROTO_GRE; | |
82 | } else if (strcmp(*argv, "sit") == 0 || | |
83 | strcmp(*argv, "ipv6/ip") == 0) { | |
84 | if (p->iph.protocol && p->iph.protocol != IPPROTO_IPV6) { | |
85 | fprintf(stderr,"You managed to ask for more than one tunnel mode.\n"); | |
86 | exit(-1); | |
87 | } | |
88 | p->iph.protocol = IPPROTO_IPV6; | |
0bd17929 TF |
89 | } else if (strcmp(*argv, "isatap") == 0) { |
90 | if (p->iph.protocol && p->iph.protocol != IPPROTO_IPV6) { | |
91 | fprintf(stderr, "You managed to ask for more than one tunnel mode.\n"); | |
92 | exit(-1); | |
93 | } | |
94 | p->iph.protocol = IPPROTO_IPV6; | |
95 | isatap++; | |
aba5acdf SH |
96 | } else { |
97 | fprintf(stderr,"Cannot guess tunnel mode.\n"); | |
98 | exit(-1); | |
99 | } | |
100 | } else if (strcmp(*argv, "key") == 0) { | |
101 | unsigned uval; | |
102 | NEXT_ARG(); | |
103 | p->i_flags |= GRE_KEY; | |
104 | p->o_flags |= GRE_KEY; | |
105 | if (strchr(*argv, '.')) | |
106 | p->i_key = p->o_key = get_addr32(*argv); | |
107 | else { | |
108 | if (get_unsigned(&uval, *argv, 0)<0) { | |
109 | fprintf(stderr, "invalid value of \"key\"\n"); | |
110 | exit(-1); | |
111 | } | |
112 | p->i_key = p->o_key = htonl(uval); | |
113 | } | |
114 | } else if (strcmp(*argv, "ikey") == 0) { | |
115 | unsigned uval; | |
116 | NEXT_ARG(); | |
117 | p->i_flags |= GRE_KEY; | |
118 | if (strchr(*argv, '.')) | |
4282c6c5 | 119 | p->i_key = get_addr32(*argv); |
aba5acdf SH |
120 | else { |
121 | if (get_unsigned(&uval, *argv, 0)<0) { | |
122 | fprintf(stderr, "invalid value of \"ikey\"\n"); | |
123 | exit(-1); | |
124 | } | |
125 | p->i_key = htonl(uval); | |
126 | } | |
127 | } else if (strcmp(*argv, "okey") == 0) { | |
128 | unsigned uval; | |
129 | NEXT_ARG(); | |
130 | p->o_flags |= GRE_KEY; | |
131 | if (strchr(*argv, '.')) | |
132 | p->o_key = get_addr32(*argv); | |
133 | else { | |
134 | if (get_unsigned(&uval, *argv, 0)<0) { | |
135 | fprintf(stderr, "invalid value of \"okey\"\n"); | |
136 | exit(-1); | |
137 | } | |
138 | p->o_key = htonl(uval); | |
139 | } | |
140 | } else if (strcmp(*argv, "seq") == 0) { | |
141 | p->i_flags |= GRE_SEQ; | |
142 | p->o_flags |= GRE_SEQ; | |
143 | } else if (strcmp(*argv, "iseq") == 0) { | |
144 | p->i_flags |= GRE_SEQ; | |
145 | } else if (strcmp(*argv, "oseq") == 0) { | |
146 | p->o_flags |= GRE_SEQ; | |
147 | } else if (strcmp(*argv, "csum") == 0) { | |
148 | p->i_flags |= GRE_CSUM; | |
149 | p->o_flags |= GRE_CSUM; | |
150 | } else if (strcmp(*argv, "icsum") == 0) { | |
151 | p->i_flags |= GRE_CSUM; | |
152 | } else if (strcmp(*argv, "ocsum") == 0) { | |
153 | p->o_flags |= GRE_CSUM; | |
154 | } else if (strcmp(*argv, "nopmtudisc") == 0) { | |
155 | p->iph.frag_off = 0; | |
156 | } else if (strcmp(*argv, "pmtudisc") == 0) { | |
157 | p->iph.frag_off = htons(IP_DF); | |
158 | } else if (strcmp(*argv, "remote") == 0) { | |
159 | NEXT_ARG(); | |
160 | if (strcmp(*argv, "any")) | |
161 | p->iph.daddr = get_addr32(*argv); | |
162 | } else if (strcmp(*argv, "local") == 0) { | |
163 | NEXT_ARG(); | |
164 | if (strcmp(*argv, "any")) | |
165 | p->iph.saddr = get_addr32(*argv); | |
166 | } else if (strcmp(*argv, "dev") == 0) { | |
167 | NEXT_ARG(); | |
168 | strncpy(medium, *argv, IFNAMSIZ-1); | |
eddde110 YH |
169 | } else if (strcmp(*argv, "ttl") == 0 || |
170 | strcmp(*argv, "hoplimit") == 0) { | |
aba5acdf SH |
171 | unsigned uval; |
172 | NEXT_ARG(); | |
173 | if (strcmp(*argv, "inherit") != 0) { | |
174 | if (get_unsigned(&uval, *argv, 0)) | |
175 | invarg("invalid TTL\n", *argv); | |
176 | if (uval > 255) | |
177 | invarg("TTL must be <=255\n", *argv); | |
178 | p->iph.ttl = uval; | |
179 | } | |
180 | } else if (strcmp(*argv, "tos") == 0 || | |
eddde110 | 181 | strcmp(*argv, "tclass") == 0 || |
aba5acdf SH |
182 | matches(*argv, "dsfield") == 0) { |
183 | __u32 uval; | |
184 | NEXT_ARG(); | |
185 | if (strcmp(*argv, "inherit") != 0) { | |
186 | if (rtnl_dsfield_a2n(&uval, *argv)) | |
187 | invarg("bad TOS value", *argv); | |
188 | p->iph.tos = uval; | |
189 | } else | |
190 | p->iph.tos = 1; | |
191 | } else { | |
192 | if (strcmp(*argv, "name") == 0) { | |
193 | NEXT_ARG(); | |
1f1ae524 | 194 | } else if (matches(*argv, "help") == 0) |
aba5acdf SH |
195 | usage(); |
196 | if (p->name[0]) | |
197 | duparg2("name", *argv); | |
198 | strncpy(p->name, *argv, IFNAMSIZ); | |
199 | if (cmd == SIOCCHGTUNNEL && count == 0) { | |
200 | struct ip_tunnel_parm old_p; | |
201 | memset(&old_p, 0, sizeof(old_p)); | |
d9bd1bd9 | 202 | if (tnl_get_ioctl(*argv, &old_p)) |
aba5acdf SH |
203 | return -1; |
204 | *p = old_p; | |
205 | } | |
206 | } | |
207 | count++; | |
208 | argc--; argv++; | |
209 | } | |
210 | ||
211 | ||
212 | if (p->iph.protocol == 0) { | |
213 | if (memcmp(p->name, "gre", 3) == 0) | |
214 | p->iph.protocol = IPPROTO_GRE; | |
215 | else if (memcmp(p->name, "ipip", 4) == 0) | |
216 | p->iph.protocol = IPPROTO_IPIP; | |
217 | else if (memcmp(p->name, "sit", 3) == 0) | |
218 | p->iph.protocol = IPPROTO_IPV6; | |
0bd17929 TF |
219 | else if (memcmp(p->name, "isatap", 6) == 0) { |
220 | p->iph.protocol = IPPROTO_IPV6; | |
221 | isatap++; | |
222 | } | |
aba5acdf SH |
223 | } |
224 | ||
225 | if (p->iph.protocol == IPPROTO_IPIP || p->iph.protocol == IPPROTO_IPV6) { | |
226 | if ((p->i_flags & GRE_KEY) || (p->o_flags & GRE_KEY)) { | |
227 | fprintf(stderr, "Keys are not allowed with ipip and sit.\n"); | |
228 | return -1; | |
229 | } | |
230 | } | |
231 | ||
232 | if (medium[0]) { | |
d9bd1bd9 | 233 | p->link = tnl_ioctl_get_ifindex(medium); |
aba5acdf SH |
234 | if (p->link == 0) |
235 | return -1; | |
236 | } | |
237 | ||
238 | if (p->i_key == 0 && IN_MULTICAST(ntohl(p->iph.daddr))) { | |
239 | p->i_key = p->iph.daddr; | |
240 | p->i_flags |= GRE_KEY; | |
241 | } | |
242 | if (p->o_key == 0 && IN_MULTICAST(ntohl(p->iph.daddr))) { | |
243 | p->o_key = p->iph.daddr; | |
244 | p->o_flags |= GRE_KEY; | |
245 | } | |
246 | if (IN_MULTICAST(ntohl(p->iph.daddr)) && !p->iph.saddr) { | |
247 | fprintf(stderr, "Broadcast tunnel requires a source address.\n"); | |
248 | return -1; | |
249 | } | |
eeef12c5 | 250 | if (isatap) |
0bd17929 | 251 | p->i_flags |= SIT_ISATAP; |
0bd17929 | 252 | |
aba5acdf SH |
253 | return 0; |
254 | } | |
255 | ||
256 | ||
257 | static int do_add(int cmd, int argc, char **argv) | |
258 | { | |
259 | struct ip_tunnel_parm p; | |
260 | ||
261 | if (parse_args(argc, argv, cmd, &p) < 0) | |
262 | return -1; | |
263 | ||
264 | if (p.iph.ttl && p.iph.frag_off == 0) { | |
265 | fprintf(stderr, "ttl != 0 and noptmudisc are incompatible\n"); | |
266 | return -1; | |
267 | } | |
268 | ||
269 | switch (p.iph.protocol) { | |
270 | case IPPROTO_IPIP: | |
d9bd1bd9 | 271 | return tnl_add_ioctl(cmd, "tunl0", p.name, &p); |
aba5acdf | 272 | case IPPROTO_GRE: |
d9bd1bd9 | 273 | return tnl_add_ioctl(cmd, "gre0", p.name, &p); |
aba5acdf | 274 | case IPPROTO_IPV6: |
d9bd1bd9 | 275 | return tnl_add_ioctl(cmd, "sit0", p.name, &p); |
ae665a52 | 276 | default: |
aba5acdf SH |
277 | fprintf(stderr, "cannot determine tunnel mode (ipip, gre or sit)\n"); |
278 | return -1; | |
279 | } | |
280 | return -1; | |
281 | } | |
282 | ||
d9bd1bd9 | 283 | static int do_del(int argc, char **argv) |
aba5acdf SH |
284 | { |
285 | struct ip_tunnel_parm p; | |
286 | ||
287 | if (parse_args(argc, argv, SIOCDELTUNNEL, &p) < 0) | |
288 | return -1; | |
289 | ||
290 | switch (p.iph.protocol) { | |
291 | case IPPROTO_IPIP: | |
d9bd1bd9 | 292 | return tnl_del_ioctl("tunl0", p.name, &p); |
aba5acdf | 293 | case IPPROTO_GRE: |
d9bd1bd9 | 294 | return tnl_del_ioctl("gre0", p.name, &p); |
aba5acdf | 295 | case IPPROTO_IPV6: |
d9bd1bd9 | 296 | return tnl_del_ioctl("sit0", p.name, &p); |
ae665a52 | 297 | default: |
d9bd1bd9 | 298 | return tnl_del_ioctl(p.name, p.name, &p); |
aba5acdf SH |
299 | } |
300 | return -1; | |
301 | } | |
302 | ||
d9bd1bd9 | 303 | static void print_tunnel(struct ip_tunnel_parm *p) |
aba5acdf SH |
304 | { |
305 | char s1[1024]; | |
306 | char s2[1024]; | |
307 | char s3[64]; | |
308 | char s4[64]; | |
309 | ||
310 | inet_ntop(AF_INET, &p->i_key, s3, sizeof(s3)); | |
311 | inet_ntop(AF_INET, &p->o_key, s4, sizeof(s4)); | |
312 | ||
313 | /* Do not use format_host() for local addr, | |
314 | * symbolic name will not be useful. | |
315 | */ | |
316 | printf("%s: %s/ip remote %s local %s ", | |
317 | p->name, | |
d9bd1bd9 | 318 | tnl_strproto(p->iph.protocol), |
aba5acdf SH |
319 | p->iph.daddr ? format_host(AF_INET, 4, &p->iph.daddr, s1, sizeof(s1)) : "any", |
320 | p->iph.saddr ? rt_addr_n2a(AF_INET, 4, &p->iph.saddr, s2, sizeof(s2)) : "any"); | |
321 | ||
a07e9912 SH |
322 | if (p->i_flags & SIT_ISATAP) { |
323 | struct ip_tunnel_prl prl[16]; | |
324 | int i; | |
325 | ||
326 | memset(prl, 0, sizeof(prl)); | |
327 | prl[0].datalen = sizeof(prl) - sizeof(prl[0]); | |
328 | prl[0].addr = htonl(INADDR_ANY); | |
329 | ||
330 | if (!tnl_prl_ioctl(SIOCGETPRL, p->name, prl)) | |
331 | for (i = 1; i < sizeof(prl) / sizeof(prl[0]); i++) | |
332 | { | |
333 | if (prl[i].addr != htonl(INADDR_ANY)) { | |
334 | printf(" %s %s ", | |
335 | (prl[i].flags & PRL_DEFAULT) ? "pdr" : "pr", | |
336 | format_host(AF_INET, 4, &prl[i].addr, s1, sizeof(s1))); | |
337 | } | |
338 | } | |
339 | } | |
340 | ||
aba5acdf | 341 | if (p->link) { |
d9bd1bd9 | 342 | char *n = tnl_ioctl_get_ifname(p->link); |
aba5acdf SH |
343 | if (n) |
344 | printf(" dev %s ", n); | |
345 | } | |
346 | ||
347 | if (p->iph.ttl) | |
348 | printf(" ttl %d ", p->iph.ttl); | |
349 | else | |
350 | printf(" ttl inherit "); | |
ae665a52 | 351 | |
aba5acdf SH |
352 | if (p->iph.tos) { |
353 | SPRINT_BUF(b1); | |
354 | printf(" tos"); | |
355 | if (p->iph.tos&1) | |
356 | printf(" inherit"); | |
357 | if (p->iph.tos&~1) | |
358 | printf("%c%s ", p->iph.tos&1 ? '/' : ' ', | |
359 | rtnl_dsfield_n2a(p->iph.tos&~1, b1, sizeof(b1))); | |
360 | } | |
361 | ||
362 | if (!(p->iph.frag_off&htons(IP_DF))) | |
363 | printf(" nopmtudisc"); | |
364 | ||
365 | if ((p->i_flags&GRE_KEY) && (p->o_flags&GRE_KEY) && p->o_key == p->i_key) | |
366 | printf(" key %s", s3); | |
367 | else if ((p->i_flags|p->o_flags)&GRE_KEY) { | |
368 | if (p->i_flags&GRE_KEY) | |
369 | printf(" ikey %s ", s3); | |
370 | if (p->o_flags&GRE_KEY) | |
371 | printf(" okey %s ", s4); | |
372 | } | |
373 | ||
374 | if (p->i_flags&GRE_SEQ) | |
375 | printf("%s Drop packets out of sequence.\n", _SL_); | |
376 | if (p->i_flags&GRE_CSUM) | |
377 | printf("%s Checksum in received packet is required.", _SL_); | |
378 | if (p->o_flags&GRE_SEQ) | |
379 | printf("%s Sequence packets on output.", _SL_); | |
380 | if (p->o_flags&GRE_CSUM) | |
381 | printf("%s Checksum output packets.", _SL_); | |
382 | } | |
383 | ||
384 | static int do_tunnels_list(struct ip_tunnel_parm *p) | |
385 | { | |
386 | char name[IFNAMSIZ]; | |
387 | unsigned long rx_bytes, rx_packets, rx_errs, rx_drops, | |
388 | rx_fifo, rx_frame, | |
389 | tx_bytes, tx_packets, tx_errs, tx_drops, | |
390 | tx_fifo, tx_colls, tx_carrier, rx_multi; | |
391 | int type; | |
392 | struct ip_tunnel_parm p1; | |
393 | ||
394 | char buf[512]; | |
395 | FILE *fp = fopen("/proc/net/dev", "r"); | |
396 | if (fp == NULL) { | |
397 | perror("fopen"); | |
398 | return -1; | |
399 | } | |
400 | ||
401 | fgets(buf, sizeof(buf), fp); | |
402 | fgets(buf, sizeof(buf), fp); | |
403 | ||
404 | while (fgets(buf, sizeof(buf), fp) != NULL) { | |
405 | char *ptr; | |
406 | buf[sizeof(buf) - 1] = 0; | |
407 | if ((ptr = strchr(buf, ':')) == NULL || | |
408 | (*ptr++ = 0, sscanf(buf, "%s", name) != 1)) { | |
409 | fprintf(stderr, "Wrong format of /proc/net/dev. Sorry.\n"); | |
410 | return -1; | |
411 | } | |
412 | if (sscanf(ptr, "%ld%ld%ld%ld%ld%ld%ld%*d%ld%ld%ld%ld%ld%ld%ld", | |
413 | &rx_bytes, &rx_packets, &rx_errs, &rx_drops, | |
414 | &rx_fifo, &rx_frame, &rx_multi, | |
415 | &tx_bytes, &tx_packets, &tx_errs, &tx_drops, | |
416 | &tx_fifo, &tx_colls, &tx_carrier) != 14) | |
417 | continue; | |
418 | if (p->name[0] && strcmp(p->name, name)) | |
419 | continue; | |
d9bd1bd9 | 420 | type = tnl_ioctl_get_iftype(name); |
aba5acdf SH |
421 | if (type == -1) { |
422 | fprintf(stderr, "Failed to get type of [%s]\n", name); | |
423 | continue; | |
424 | } | |
425 | if (type != ARPHRD_TUNNEL && type != ARPHRD_IPGRE && type != ARPHRD_SIT) | |
426 | continue; | |
427 | memset(&p1, 0, sizeof(p1)); | |
d9bd1bd9 | 428 | if (tnl_get_ioctl(name, &p1)) |
aba5acdf SH |
429 | continue; |
430 | if ((p->link && p1.link != p->link) || | |
431 | (p->name[0] && strcmp(p1.name, p->name)) || | |
432 | (p->iph.daddr && p1.iph.daddr != p->iph.daddr) || | |
433 | (p->iph.saddr && p1.iph.saddr != p->iph.saddr) || | |
434 | (p->i_key && p1.i_key != p->i_key)) | |
435 | continue; | |
436 | print_tunnel(&p1); | |
437 | if (show_stats) { | |
438 | printf("%s", _SL_); | |
439 | printf("RX: Packets Bytes Errors CsumErrs OutOfSeq Mcasts%s", _SL_); | |
440 | printf(" %-10ld %-12ld %-6ld %-8ld %-8ld %-8ld%s", | |
441 | rx_packets, rx_bytes, rx_errs, rx_frame, rx_fifo, rx_multi, _SL_); | |
442 | printf("TX: Packets Bytes Errors DeadLoop NoRoute NoBufs%s", _SL_); | |
443 | printf(" %-10ld %-12ld %-6ld %-8ld %-8ld %-6ld", | |
444 | tx_packets, tx_bytes, tx_errs, tx_colls, tx_carrier, tx_drops); | |
445 | } | |
446 | printf("\n"); | |
447 | } | |
448 | return 0; | |
449 | } | |
450 | ||
451 | static int do_show(int argc, char **argv) | |
452 | { | |
453 | int err; | |
454 | struct ip_tunnel_parm p; | |
455 | ||
456 | if (parse_args(argc, argv, SIOCGETTUNNEL, &p) < 0) | |
457 | return -1; | |
458 | ||
459 | switch (p.iph.protocol) { | |
ae665a52 | 460 | case IPPROTO_IPIP: |
d9bd1bd9 | 461 | err = tnl_get_ioctl(p.name[0] ? p.name : "tunl0", &p); |
aba5acdf SH |
462 | break; |
463 | case IPPROTO_GRE: | |
d9bd1bd9 | 464 | err = tnl_get_ioctl(p.name[0] ? p.name : "gre0", &p); |
aba5acdf SH |
465 | break; |
466 | case IPPROTO_IPV6: | |
d9bd1bd9 | 467 | err = tnl_get_ioctl(p.name[0] ? p.name : "sit0", &p); |
aba5acdf SH |
468 | break; |
469 | default: | |
470 | do_tunnels_list(&p); | |
471 | return 0; | |
472 | } | |
473 | if (err) | |
474 | return -1; | |
475 | ||
476 | print_tunnel(&p); | |
477 | printf("\n"); | |
478 | return 0; | |
479 | } | |
480 | ||
a07e9912 SH |
481 | static int do_prl(int argc, char **argv) |
482 | { | |
483 | struct ip_tunnel_prl p; | |
484 | int count = 0; | |
485 | int devname = 0; | |
486 | int cmd = 0; | |
487 | char medium[IFNAMSIZ]; | |
488 | ||
489 | memset(&p, 0, sizeof(p)); | |
490 | memset(&medium, 0, sizeof(medium)); | |
491 | ||
492 | while (argc > 0) { | |
493 | if (strcmp(*argv, "prl-default") == 0) { | |
494 | NEXT_ARG(); | |
495 | cmd = SIOCADDPRL; | |
496 | p.addr = get_addr32(*argv); | |
497 | p.flags |= PRL_DEFAULT; | |
498 | count++; | |
499 | } else if (strcmp(*argv, "prl-nodefault") == 0) { | |
500 | NEXT_ARG(); | |
501 | cmd = SIOCADDPRL; | |
502 | p.addr = get_addr32(*argv); | |
503 | count++; | |
504 | } else if (strcmp(*argv, "prl-delete") == 0) { | |
505 | NEXT_ARG(); | |
506 | cmd = SIOCDELPRL; | |
507 | p.addr = get_addr32(*argv); | |
508 | count++; | |
509 | } else if (strcmp(*argv, "dev") == 0) { | |
510 | NEXT_ARG(); | |
511 | strncpy(medium, *argv, IFNAMSIZ-1); | |
512 | devname++; | |
513 | } else { | |
514 | fprintf(stderr,"%s: Invalid PRL parameter.\n", *argv); | |
515 | exit(-1); | |
516 | } | |
517 | if (count > 1) { | |
518 | fprintf(stderr,"One PRL entry at a time.\n"); | |
519 | exit(-1); | |
520 | } | |
521 | argc--; argv++; | |
522 | } | |
523 | if (devname == 0) { | |
524 | fprintf(stderr, "Must specify dev.\n"); | |
525 | exit(-1); | |
526 | } | |
527 | ||
528 | return tnl_prl_ioctl(cmd, medium, &p); | |
529 | } | |
530 | ||
aba5acdf SH |
531 | int do_iptunnel(int argc, char **argv) |
532 | { | |
d9bd1bd9 MN |
533 | switch (preferred_family) { |
534 | case AF_UNSPEC: | |
535 | preferred_family = AF_INET; | |
536 | break; | |
537 | case AF_INET: | |
538 | break; | |
288384f2 MN |
539 | /* |
540 | * This is silly enough but we have no easy way to make it | |
541 | * protocol-independent because of unarranged structure between | |
542 | * IPv4 and IPv6. | |
543 | */ | |
544 | case AF_INET6: | |
545 | return do_ip6tunnel(argc, argv); | |
d9bd1bd9 MN |
546 | default: |
547 | fprintf(stderr, "Unsupported family:%d\n", preferred_family); | |
548 | exit(-1); | |
549 | } | |
550 | ||
aba5acdf SH |
551 | if (argc > 0) { |
552 | if (matches(*argv, "add") == 0) | |
553 | return do_add(SIOCADDTUNNEL, argc-1, argv+1); | |
554 | if (matches(*argv, "change") == 0) | |
555 | return do_add(SIOCCHGTUNNEL, argc-1, argv+1); | |
556 | if (matches(*argv, "del") == 0) | |
557 | return do_del(argc-1, argv+1); | |
558 | if (matches(*argv, "show") == 0 || | |
559 | matches(*argv, "lst") == 0 || | |
560 | matches(*argv, "list") == 0) | |
561 | return do_show(argc-1, argv+1); | |
a07e9912 SH |
562 | if (matches(*argv, "prl") == 0) |
563 | return do_prl(argc-1, argv+1); | |
aba5acdf SH |
564 | if (matches(*argv, "help") == 0) |
565 | usage(); | |
566 | } else | |
567 | return do_show(0, NULL); | |
568 | ||
569 | fprintf(stderr, "Command \"%s\" is unknown, try \"ip tunnel help\".\n", *argv); | |
570 | exit(-1); | |
571 | } |