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iproute: Set ip/ip6 lwtunnel flags
[mirror_iproute2.git] / ip / link_gre6.c
CommitLineData
af89576d 1/*
2 * link_gre6.c gre driver module
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: Dmitry Kozlov <xeb@mail.ru>
10 *
11 */
12
13#include <string.h>
14#include <net/if.h>
15#include <sys/types.h>
16#include <sys/socket.h>
17#include <arpa/inet.h>
18
19#include <linux/ip.h>
20#include <linux/if_tunnel.h>
21#include <linux/ip6_tunnel.h>
22
23#include "rt_names.h"
24#include "utils.h"
25#include "ip_common.h"
26#include "tunnel.h"
27
28#define IP6_FLOWINFO_TCLASS htonl(0x0FF00000)
29#define IP6_FLOWINFO_FLOWLABEL htonl(0x000FFFFF)
30
31#define DEFAULT_TNL_HOP_LIMIT (64)
32
ae91205c 33static void gre_print_help(struct link_util *lu, int argc, char **argv, FILE *f)
af89576d 34{
8b471354 35 fprintf(f,
ae91205c
SP		 36 "Usage: ... %-9s [ remote ADDR ]\n",
37 lu->id
38 );
39 fprintf(f,
40 " [ local ADDR ]\n"
7f520601
SD		 41 " [ [no][i|o]seq ]\n"
42 " [ [i|o]key KEY | no[i|o]key ]\n"
43 " [ [no][i|o]csum ]\n"
ae91205c
SP		 44 " [ hoplimit TTL ]\n"
45 " [ encaplimit ELIM ]\n"
46 " [ tclass TCLASS ]\n"
47 " [ flowlabel FLOWLABEL ]\n"
48 " [ dscp inherit ]\n"
49 " [ dev PHYS_DEV ]\n"
50 " [ fwmark MARK ]\n"
f798a8ab 51 " [ [no]allow-localremote ]\n"
ae91205c
SP		 52 " [ external ]\n"
53 " [ noencap ]\n"
54 " [ encap { fou | gue | none } ]\n"
55 " [ encap-sport PORT ]\n"
56 " [ encap-dport PORT ]\n"
57 " [ [no]encap-csum ]\n"
58 " [ [no]encap-csum6 ]\n"
59 " [ [no]encap-remcsum ]\n"
60 " [ erspan_ver version ]\n"
61 " [ erspan IDX ]\n"
62 " [ erspan_dir { ingress | egress } ]\n"
63 " [ erspan_hwid hwid ]\n"
8b471354 64 "\n"
ae91205c
SP		 65 );
66 fprintf(f,
8b471354
PS		 67 "Where: ADDR := IPV6_ADDRESS\n"
68 " TTL := { 0..255 } (default=%d)\n"
69 " KEY := { DOTTED_QUAD | NUMBER }\n"
70 " ELIM := { none | 0..255 }(default=%d)\n"
71 " TCLASS := { 0x0..0xff | inherit }\n"
ad4b1425
CG		 72 " FLOWLABEL := { 0x0..0xfffff | inherit }\n"
73 " MARK := { 0x0..0xffffffff | inherit }\n",
8b471354
PS		 74 DEFAULT_TNL_HOP_LIMIT, IPV6_DEFAULT_TNL_ENCAP_LIMIT
75 );
561e650e 76}
77
af89576d 78static int gre_parse_opt(struct link_util *lu, int argc, char **argv,
79 struct nlmsghdr *n)
80{
28254695 81 struct ifinfomsg *ifi = NLMSG_DATA(n);
af89576d 82 struct {
83 struct nlmsghdr n;
84 struct ifinfomsg i;
d17b136f
PS		 85 } req = {
86 .n.nlmsg_len = NLMSG_LENGTH(sizeof(*ifi)),
87 .n.nlmsg_flags = NLM_F_REQUEST,
88 .n.nlmsg_type = RTM_GETLINK,
89 .i.ifi_family = preferred_family,
90 .i.ifi_index = ifi->ifi_index,
91 };
08ede25f 92 struct nlmsghdr *answer;
af89576d 93 struct rtattr *tb[IFLA_MAX + 1];
94 struct rtattr *linkinfo[IFLA_INFO_MAX+1];
95 struct rtattr *greinfo[IFLA_GRE_MAX + 1];
5bd93795 96 int len;
af89576d 97 __u16 iflags = 0;
98 __u16 oflags = 0;
1f44b937
SP		 99 __be32 ikey = 0;
100 __be32 okey = 0;
a066cc66 101 inet_prefix saddr, daddr;
af89576d 102 __u8 hop_limit = DEFAULT_TNL_HOP_LIMIT;
103 __u8 encap_limit = IPV6_DEFAULT_TNL_ENCAP_LIMIT;
5bd93795
SP		 104 __u32 flowinfo = 0;
105 __u32 flags = 0;
106 __u32 link = 0;
0b2fbb73
TH		 107 __u16 encaptype = 0;
108 __u16 encapflags = TUNNEL_ENCAP_FLAG_CSUM6;
109 __u16 encapsport = 0;
110 __u16 encapdport = 0;
6231c5be 111 __u8 metadata = 0;
ad4b1425 112 __u32 fwmark = 0;
8595cc40 113 __u32 erspan_idx = 0;
28976362
WT		 114 __u8 erspan_ver = 0;
115 __u8 erspan_dir = 0;
116 __u16 erspan_hwid = 0;
af89576d 117
a066cc66
SP		 118 inet_prefix_reset(&saddr);
119 inet_prefix_reset(&daddr);
120
af89576d 121 if (!(n->nlmsg_flags & NLM_F_CREATE)) {
a066cc66
SP		 122 const struct rtattr *rta;
123
86bf43c7 124 if (rtnl_talk(&rth, &req.n, &answer) < 0) {
af89576d 125get_failed:
126 fprintf(stderr,
127 "Failed to get existing tunnel info.\n");
128 return -1;
129 }
130
86bf43c7 131 len = answer->nlmsg_len;
af89576d 132 len -= NLMSG_LENGTH(sizeof(*ifi));
133 if (len < 0)
134 goto get_failed;
135
86bf43c7 136 parse_rtattr(tb, IFLA_MAX, IFLA_RTA(NLMSG_DATA(answer)), len);
af89576d 137
138 if (!tb[IFLA_LINKINFO])
139 goto get_failed;
140
141 parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb[IFLA_LINKINFO]);
142
143 if (!linkinfo[IFLA_INFO_DATA])
144 goto get_failed;
145
146 parse_rtattr_nested(greinfo, IFLA_GRE_MAX,
147 linkinfo[IFLA_INFO_DATA]);
148
a066cc66
SP		 149 rta = greinfo[IFLA_GRE_LOCAL];
150 if (rta && get_addr_rta(&saddr, rta, AF_INET6))
151 goto get_failed;
152
153 rta = greinfo[IFLA_GRE_REMOTE];
154 if (rta && get_addr_rta(&daddr, rta, AF_INET6))
155 goto get_failed;
156
af89576d 157 if (greinfo[IFLA_GRE_IKEY])
158 ikey = rta_getattr_u32(greinfo[IFLA_GRE_IKEY]);
159
160 if (greinfo[IFLA_GRE_OKEY])
161 okey = rta_getattr_u32(greinfo[IFLA_GRE_OKEY]);
162
163 if (greinfo[IFLA_GRE_IFLAGS])
164 iflags = rta_getattr_u16(greinfo[IFLA_GRE_IFLAGS]);
165
166 if (greinfo[IFLA_GRE_OFLAGS])
167 oflags = rta_getattr_u16(greinfo[IFLA_GRE_OFLAGS]);
168
af89576d 169 if (greinfo[IFLA_GRE_TTL])
170 hop_limit = rta_getattr_u8(greinfo[IFLA_GRE_TTL]);
171
172 if (greinfo[IFLA_GRE_LINK])
173 link = rta_getattr_u32(greinfo[IFLA_GRE_LINK]);
174
175 if (greinfo[IFLA_GRE_ENCAP_LIMIT])
176 encap_limit = rta_getattr_u8(greinfo[IFLA_GRE_ENCAP_LIMIT]);
177
178 if (greinfo[IFLA_GRE_FLOWINFO])
179 flowinfo = rta_getattr_u32(greinfo[IFLA_GRE_FLOWINFO]);
180
181 if (greinfo[IFLA_GRE_FLAGS])
182 flags = rta_getattr_u32(greinfo[IFLA_GRE_FLAGS]);
0b2fbb73
TH		 183
184 if (greinfo[IFLA_GRE_ENCAP_TYPE])
185 encaptype = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_TYPE]);
186
187 if (greinfo[IFLA_GRE_ENCAP_FLAGS])
188 encapflags = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_FLAGS]);
189
190 if (greinfo[IFLA_GRE_ENCAP_SPORT])
191 encapsport = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_SPORT]);
192
193 if (greinfo[IFLA_GRE_ENCAP_DPORT])
194 encapdport = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_DPORT]);
ad4b1425 195
5bd93795
SP		 196 if (greinfo[IFLA_GRE_COLLECT_METADATA])
197 metadata = 1;
198
ad4b1425
CG		 199 if (greinfo[IFLA_GRE_FWMARK])
200 fwmark = rta_getattr_u32(greinfo[IFLA_GRE_FWMARK]);
86bf43c7 201
8595cc40
WT		 202 if (greinfo[IFLA_GRE_ERSPAN_INDEX])
203 erspan_idx = rta_getattr_u32(greinfo[IFLA_GRE_ERSPAN_INDEX]);
204
28976362
WT		 205 if (greinfo[IFLA_GRE_ERSPAN_VER])
206 erspan_ver = rta_getattr_u8(greinfo[IFLA_GRE_ERSPAN_VER]);
207
208 if (greinfo[IFLA_GRE_ERSPAN_DIR])
209 erspan_dir = rta_getattr_u8(greinfo[IFLA_GRE_ERSPAN_DIR]);
210
211 if (greinfo[IFLA_GRE_ERSPAN_HWID])
212 erspan_hwid = rta_getattr_u16(greinfo[IFLA_GRE_ERSPAN_HWID]);
213
86bf43c7 214 free(answer);
af89576d 215 }
216
217 while (argc > 0) {
218 if (!matches(*argv, "key")) {
af89576d 219 NEXT_ARG();
220 iflags |= GRE_KEY;
221 oflags |= GRE_KEY;
1f44b937 222 ikey = okey = tnl_parse_key("key", *argv);
7f520601
SD		 223 } else if (!matches(*argv, "nokey")) {
224 iflags &= ~GRE_KEY;
225 oflags &= ~GRE_KEY;
226 ikey = okey = 0;
af89576d 227 } else if (!matches(*argv, "ikey")) {
af89576d 228 NEXT_ARG();
229 iflags |= GRE_KEY;
1f44b937 230 ikey = tnl_parse_key("ikey", *argv);
7f520601
SD		 231 } else if (!matches(*argv, "noikey")) {
232 iflags &= ~GRE_KEY;
233 ikey = 0;
af89576d 234 } else if (!matches(*argv, "okey")) {
af89576d 235 NEXT_ARG();
236 oflags |= GRE_KEY;
1f44b937 237 okey = tnl_parse_key("okey", *argv);
7f520601
SD		 238 } else if (!matches(*argv, "nookey")) {
239 oflags &= ~GRE_KEY;
240 okey = 0;
af89576d 241 } else if (!matches(*argv, "seq")) {
242 iflags |= GRE_SEQ;
243 oflags |= GRE_SEQ;
7f520601
SD		 244 } else if (!matches(*argv, "noseq")) {
245 iflags &= ~GRE_SEQ;
246 oflags &= ~GRE_SEQ;
af89576d 247 } else if (!matches(*argv, "iseq")) {
248 iflags |= GRE_SEQ;
7f520601
SD		 249 } else if (!matches(*argv, "noiseq")) {
250 iflags &= ~GRE_SEQ;
af89576d 251 } else if (!matches(*argv, "oseq")) {
252 oflags |= GRE_SEQ;
7f520601
SD		 253 } else if (!matches(*argv, "nooseq")) {
254 oflags &= ~GRE_SEQ;
af89576d 255 } else if (!matches(*argv, "csum")) {
256 iflags |= GRE_CSUM;
257 oflags |= GRE_CSUM;
7f520601
SD		 258 } else if (!matches(*argv, "nocsum")) {
259 iflags &= ~GRE_CSUM;
260 oflags &= ~GRE_CSUM;
af89576d 261 } else if (!matches(*argv, "icsum")) {
262 iflags |= GRE_CSUM;
7f520601
SD		 263 } else if (!matches(*argv, "noicsum")) {
264 iflags &= ~GRE_CSUM;
af89576d 265 } else if (!matches(*argv, "ocsum")) {
266 oflags |= GRE_CSUM;
7f520601
SD		 267 } else if (!matches(*argv, "noocsum")) {
268 oflags &= ~GRE_CSUM;
af89576d 269 } else if (!matches(*argv, "remote")) {
af89576d 270 NEXT_ARG();
a066cc66 271 get_addr(&daddr, *argv, AF_INET6);
af89576d 272 } else if (!matches(*argv, "local")) {
af89576d 273 NEXT_ARG();
a066cc66 274 get_addr(&saddr, *argv, AF_INET6);
af89576d 275 } else if (!matches(*argv, "dev")) {
276 NEXT_ARG();
7a14358b 277 link = ll_name_to_index(*argv);
fe99adbc
SP		 278 if (!link)
279 exit(nodev(*argv));
af89576d 280 } else if (!matches(*argv, "ttl") ||
c4743c4d
SP		 281 !matches(*argv, "hoplimit") ||
282 !matches(*argv, "hlim")) {
af89576d 283 NEXT_ARG();
c4743c4d
SP		 284 if (strcmp(*argv, "inherit") != 0) {
285 if (get_u8(&hop_limit, *argv, 0))
286 invarg("invalid HLIM\n", *argv);
287 } else
288 hop_limit = 0;
af89576d 289 } else if (!matches(*argv, "tos") ||
290 !matches(*argv, "tclass") ||
291 !matches(*argv, "dsfield")) {
292 __u8 uval;
56f5daac 293
af89576d 294 NEXT_ARG();
afdf9277 295 flowinfo &= ~IP6_FLOWINFO_TCLASS;
af89576d 296 if (strcmp(*argv, "inherit") == 0)
297 flags |= IP6_TNL_F_USE_ORIG_TCLASS;
298 else {
299 if (get_u8(&uval, *argv, 16))
300 invarg("invalid TClass", *argv);
301 flowinfo |= htonl((__u32)uval << 20) & IP6_FLOWINFO_TCLASS;
302 flags &= ~IP6_TNL_F_USE_ORIG_TCLASS;
303 }
304 } else if (strcmp(*argv, "flowlabel") == 0 ||
305 strcmp(*argv, "fl") == 0) {
306 __u32 uval;
56f5daac 307
af89576d 308 NEXT_ARG();
afdf9277 309 flowinfo &= ~IP6_FLOWINFO_FLOWLABEL;
af89576d 310 if (strcmp(*argv, "inherit") == 0)
311 flags |= IP6_TNL_F_USE_ORIG_FLOWLABEL;
312 else {
313 if (get_u32(&uval, *argv, 16))
314 invarg("invalid Flowlabel", *argv);
315 if (uval > 0xFFFFF)
316 invarg("invalid Flowlabel", *argv);
317 flowinfo |= htonl(uval) & IP6_FLOWINFO_FLOWLABEL;
318 flags &= ~IP6_TNL_F_USE_ORIG_FLOWLABEL;
319 }
320 } else if (strcmp(*argv, "dscp") == 0) {
321 NEXT_ARG();
322 if (strcmp(*argv, "inherit") != 0)
323 invarg("not inherit", *argv);
324 flags |= IP6_TNL_F_RCV_DSCP_COPY;
0b2fbb73
TH		 325 } else if (strcmp(*argv, "noencap") == 0) {
326 encaptype = TUNNEL_ENCAP_NONE;
327 } else if (strcmp(*argv, "encap") == 0) {
328 NEXT_ARG();
329 if (strcmp(*argv, "fou") == 0)
330 encaptype = TUNNEL_ENCAP_FOU;
331 else if (strcmp(*argv, "gue") == 0)
332 encaptype = TUNNEL_ENCAP_GUE;
333 else if (strcmp(*argv, "none") == 0)
334 encaptype = TUNNEL_ENCAP_NONE;
335 else
336 invarg("Invalid encap type.", *argv);
337 } else if (strcmp(*argv, "encap-sport") == 0) {
338 NEXT_ARG();
339 if (strcmp(*argv, "auto") == 0)
340 encapsport = 0;
341 else if (get_u16(&encapsport, *argv, 0))
342 invarg("Invalid source port.", *argv);
343 } else if (strcmp(*argv, "encap-dport") == 0) {
344 NEXT_ARG();
345 if (get_u16(&encapdport, *argv, 0))
346 invarg("Invalid destination port.", *argv);
347 } else if (strcmp(*argv, "encap-csum") == 0) {
348 encapflags |= TUNNEL_ENCAP_FLAG_CSUM;
349 } else if (strcmp(*argv, "noencap-csum") == 0) {
350 encapflags &= ~TUNNEL_ENCAP_FLAG_CSUM;
351 } else if (strcmp(*argv, "encap-udp6-csum") == 0) {
352 encapflags |= TUNNEL_ENCAP_FLAG_CSUM6;
353 } else if (strcmp(*argv, "noencap-udp6-csum") == 0) {
354 encapflags &= ~TUNNEL_ENCAP_FLAG_CSUM6;
355 } else if (strcmp(*argv, "encap-remcsum") == 0) {
356 encapflags |= TUNNEL_ENCAP_FLAG_REMCSUM;
357 } else if (strcmp(*argv, "noencap-remcsum") == 0) {
358 encapflags &= ~TUNNEL_ENCAP_FLAG_REMCSUM;
6231c5be
WT		 359 } else if (strcmp(*argv, "external") == 0) {
360 metadata = 1;
ad4b1425
CG		 361 } else if (strcmp(*argv, "fwmark") == 0) {
362 NEXT_ARG();
363 if (strcmp(*argv, "inherit") == 0) {
364 flags |= IP6_TNL_F_USE_ORIG_FWMARK;
365 fwmark = 0;
366 } else {
367 if (get_u32(&fwmark, *argv, 0))
368 invarg("invalid fwmark\n", *argv);
369 flags &= ~IP6_TNL_F_USE_ORIG_FWMARK;
370 }
f798a8ab
PM		 371 } else if (strcmp(*argv, "allow-localremote") == 0) {
372 flags |= IP6_TNL_F_ALLOW_LOCAL_REMOTE;
373 } else if (strcmp(*argv, "noallow-localremote") == 0) {
374 flags &= ~IP6_TNL_F_ALLOW_LOCAL_REMOTE;
a11b7b71
ND		 375 } else if (strcmp(*argv, "encaplimit") == 0) {
376 NEXT_ARG();
377 if (strcmp(*argv, "none") == 0) {
378 flags |= IP6_TNL_F_IGN_ENCAP_LIMIT;
379 } else {
380 __u8 uval;
381
56708ae7 382 if (get_u8(&uval, *argv, 0))
a11b7b71
ND		 383 invarg("invalid ELIM", *argv);
384 encap_limit = uval;
385 flags &= ~IP6_TNL_F_IGN_ENCAP_LIMIT;
386 }
8595cc40
WT		 387 } else if (strcmp(*argv, "erspan") == 0) {
388 NEXT_ARG();
389 if (get_u32(&erspan_idx, *argv, 0))
390 invarg("invalid erspan index\n", *argv);
391 if (erspan_idx & ~((1<<20) - 1) || erspan_idx == 0)
392 invarg("erspan index must be > 0 and <= 20-bit\n", *argv);
28976362
WT		 393 } else if (strcmp(*argv, "erspan_ver") == 0) {
394 NEXT_ARG();
395 if (get_u8(&erspan_ver, *argv, 0))
396 invarg("invalid erspan version\n", *argv);
397 if (erspan_ver != 1 && erspan_ver != 2)
398 invarg("erspan version must be 1 or 2\n", *argv);
399 } else if (strcmp(*argv, "erspan_dir") == 0) {
400 NEXT_ARG();
401 if (matches(*argv, "ingress") == 0)
402 erspan_dir = 0;
403 else if (matches(*argv, "egress") == 0)
404 erspan_dir = 1;
405 else
406 invarg("Invalid erspan direction.", *argv);
407 } else if (strcmp(*argv, "erspan_hwid") == 0) {
408 NEXT_ARG();
409 if (get_u16(&erspan_hwid, *argv, 0))
410 invarg("invalid erspan hwid\n", *argv);
ae91205c
SP		 411 } else {
412 gre_print_help(lu, argc, argv, stderr);
413 return -1;
414 }
af89576d 415 argc--; argv++;
416 }
417
5bd93795 418 if (metadata) {
6231c5be 419 addattr_l(n, 1024, IFLA_GRE_COLLECT_METADATA, NULL, 0);
5bd93795
SP		 420 return 0;
421 }
422
423 addattr32(n, 1024, IFLA_GRE_IKEY, ikey);
424 addattr32(n, 1024, IFLA_GRE_OKEY, okey);
425 addattr_l(n, 1024, IFLA_GRE_IFLAGS, &iflags, 2);
426 addattr_l(n, 1024, IFLA_GRE_OFLAGS, &oflags, 2);
fa1e658e 427 if (is_addrtype_inet_not_unspec(&saddr))
a066cc66 428 addattr_l(n, 1024, IFLA_GRE_LOCAL, saddr.data, saddr.bytelen);
fa1e658e 429 if (is_addrtype_inet_not_unspec(&daddr))
a066cc66 430 addattr_l(n, 1024, IFLA_GRE_REMOTE, daddr.data, daddr.bytelen);
5bd93795
SP		 431 if (link)
432 addattr32(n, 1024, IFLA_GRE_LINK, link);
433 addattr_l(n, 1024, IFLA_GRE_TTL, &hop_limit, 1);
434 addattr_l(n, 1024, IFLA_GRE_ENCAP_LIMIT, &encap_limit, 1);
435 addattr_l(n, 1024, IFLA_GRE_FLOWINFO, &flowinfo, 4);
436 addattr32(n, 1024, IFLA_GRE_FLAGS, flags);
437 addattr32(n, 1024, IFLA_GRE_FWMARK, fwmark);
438 if (erspan_ver) {
439 addattr8(n, 1024, IFLA_GRE_ERSPAN_VER, erspan_ver);
440 if (erspan_ver == 1 && erspan_idx != 0) {
441 addattr32(n, 1024, IFLA_GRE_ERSPAN_INDEX, erspan_idx);
442 } else if (erspan_ver == 2) {
443 addattr8(n, 1024, IFLA_GRE_ERSPAN_DIR, erspan_dir);
444 addattr16(n, 1024, IFLA_GRE_ERSPAN_HWID, erspan_hwid);
445 }
6231c5be 446 }
5bd93795
SP		 447 addattr16(n, 1024, IFLA_GRE_ENCAP_TYPE, encaptype);
448 addattr16(n, 1024, IFLA_GRE_ENCAP_FLAGS, encapflags);
449 addattr16(n, 1024, IFLA_GRE_ENCAP_SPORT, htons(encapsport));
450 addattr16(n, 1024, IFLA_GRE_ENCAP_DPORT, htons(encapdport));
0b2fbb73 451
af89576d 452 return 0;
453}
454
455static void gre_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
456{
af89576d 457 char s2[64];
5bd93795
SP		 458 __u16 iflags = 0;
459 __u16 oflags = 0;
460 __u32 flags = 0;
090524f8 461 __u32 flowinfo = 0;
375560c4 462 __u8 ttl = 0;
af89576d 463
464 if (!tb)
465 return;
466
6231c5be 467 if (tb[IFLA_GRE_COLLECT_METADATA]) {
00ff4b8e 468 print_bool(PRINT_ANY, "external", "external", true);
6231c5be
WT		 469 return;
470 }
471
af89576d 472 if (tb[IFLA_GRE_FLAGS])
473 flags = rta_getattr_u32(tb[IFLA_GRE_FLAGS]);
474
475 if (tb[IFLA_GRE_FLOWINFO])
35893864 476 flowinfo = rta_getattr_u32(tb[IFLA_GRE_FLOWINFO]);
af89576d 477
b761fc41
SP		 478 tnl_print_endpoint("remote", tb[IFLA_GRE_REMOTE], AF_INET6);
479 tnl_print_endpoint("local", tb[IFLA_GRE_LOCAL], AF_INET6);
af89576d 480
45d3a6ef 481 if (tb[IFLA_GRE_LINK]) {
5bd93795 482 __u32 link = rta_getattr_u32(tb[IFLA_GRE_LINK]);
af89576d 483
45d3a6ef
SP		 484 if (link) {
485 print_string(PRINT_ANY, "link", "dev %s ",
486 ll_index_to_name(link));
487 }
af89576d 488 }
489
375560c4
SP		 490 if (tb[IFLA_GRE_TTL])
491 ttl = rta_getattr_u8(tb[IFLA_GRE_TTL]);
492 if (is_json_context() || ttl)
493 print_uint(PRINT_ANY, "ttl", "hoplimit %u ", ttl);
494 else
495 print_string(PRINT_FP, NULL, "hoplimit %s ", "inherit");
6856fb65 496
e3945d92 497 if (flags & IP6_TNL_F_IGN_ENCAP_LIMIT) {
6856fb65
JF		 498 print_bool(PRINT_ANY,
499 "ip6_tnl_f_ign_encap_limit",
500 "encaplimit none ",
501 true);
e3945d92
SP		 502 } else if (tb[IFLA_GRE_ENCAP_LIMIT]) {
503 __u8 val = rta_getattr_u8(tb[IFLA_GRE_ENCAP_LIMIT]);
af89576d 504
e3945d92 505 print_uint(PRINT_ANY, "encap_limit", "encaplimit %u ", val);
af89576d 506 }
507
2e706e12 508 if (flags & IP6_TNL_F_USE_ORIG_TCLASS) {
6856fb65 509 print_bool(PRINT_ANY,
2e706e12
SH		 510 "ip6_tnl_f_use_orig_tclass",
511 "tclass inherit ",
6856fb65 512 true);
090524f8
SP		 513 } else if (tb[IFLA_GRE_FLOWINFO]) {
514 __u32 val = ntohl(flowinfo & IP6_FLOWINFO_TCLASS) >> 20;
6856fb65 515
090524f8
SP		 516 snprintf(s2, sizeof(s2), "0x%02x", val);
517 print_string(PRINT_ANY, "tclass", "tclass %s ", s2);
6856fb65 518 }
af89576d 519
763cf495 520 if (flags & IP6_TNL_F_USE_ORIG_FLOWLABEL) {
2e706e12 521 print_bool(PRINT_ANY,
763cf495
SP		 522 "ip6_tnl_f_use_orig_flowlabel",
523 "flowlabel inherit ",
2e706e12 524 true);
763cf495
SP		 525 } else if (tb[IFLA_GRE_FLOWINFO]) {
526 __u32 val = ntohl(flowinfo & IP6_FLOWINFO_FLOWLABEL);
2e706e12 527
763cf495
SP		 528 snprintf(s2, sizeof(s2), "0x%05x", val);
529 print_string(PRINT_ANY, "flowlabel", "flowlabel %s ", s2);
2e706e12 530 }
af89576d 531
532 if (flags & IP6_TNL_F_RCV_DSCP_COPY)
6856fb65
JF		 533 print_bool(PRINT_ANY,
534 "ip6_tnl_f_rcv_dscp_copy",
535 "dscp inherit ",
536 true);
af89576d 537
538 if (tb[IFLA_GRE_IFLAGS])
539 iflags = rta_getattr_u16(tb[IFLA_GRE_IFLAGS]);
540
541 if (tb[IFLA_GRE_OFLAGS])
542 oflags = rta_getattr_u16(tb[IFLA_GRE_OFLAGS]);
543
544 if ((iflags & GRE_KEY) && tb[IFLA_GRE_IKEY]) {
545 inet_ntop(AF_INET, RTA_DATA(tb[IFLA_GRE_IKEY]), s2, sizeof(s2));
6856fb65 546 print_string(PRINT_ANY, "ikey", "ikey %s ", s2);
af89576d 547 }
548
549 if ((oflags & GRE_KEY) && tb[IFLA_GRE_OKEY]) {
550 inet_ntop(AF_INET, RTA_DATA(tb[IFLA_GRE_OKEY]), s2, sizeof(s2));
6856fb65 551 print_string(PRINT_ANY, "okey", "okey %s ", s2);
af89576d 552 }
553
554 if (iflags & GRE_SEQ)
6856fb65 555 print_bool(PRINT_ANY, "iseq", "iseq ", true);
af89576d 556 if (oflags & GRE_SEQ)
6856fb65 557 print_bool(PRINT_ANY, "oseq", "oseq ", true);
af89576d 558 if (iflags & GRE_CSUM)
6856fb65 559 print_bool(PRINT_ANY, "icsum", "icsum ", true);
af89576d 560 if (oflags & GRE_CSUM)
6856fb65 561 print_bool(PRINT_ANY, "ocsum", "ocsum ", true);
0b2fbb73 562
f798a8ab
PM		 563 if (flags & IP6_TNL_F_ALLOW_LOCAL_REMOTE)
564 print_bool(PRINT_ANY,
565 "ip6_tnl_f_allow_local_remote",
566 "allow-localremote ",
567 true);
568
e97ad3d2 569 if (flags & IP6_TNL_F_USE_ORIG_FWMARK) {
6856fb65
JF		 570 print_bool(PRINT_ANY,
571 "ip6_tnl_f_use_orig_fwmark",
572 "fwmark inherit ",
573 true);
e97ad3d2 574 } else if (tb[IFLA_GRE_FWMARK]) {
6856fb65
JF		 575 __u32 fwmark = rta_getattr_u32(tb[IFLA_GRE_FWMARK]);
576
577 if (fwmark) {
e97ad3d2 578 print_0xhex(PRINT_ANY,
90c5c969 579 "fwmark", "fwmark %#llx ", fwmark);
6856fb65
JF		 580 }
581 }
ad4b1425 582
8595cc40
WT		 583 if (tb[IFLA_GRE_ERSPAN_INDEX]) {
584 __u32 erspan_idx = rta_getattr_u32(tb[IFLA_GRE_ERSPAN_INDEX]);
5bd93795 585
3cb92eb9
SP		 586 print_uint(PRINT_ANY,
587 "erspan_index", "erspan_index %u ", erspan_idx);
28976362
WT		 588 }
589
590 if (tb[IFLA_GRE_ERSPAN_VER]) {
591 __u8 erspan_ver = rta_getattr_u8(tb[IFLA_GRE_ERSPAN_VER]);
592
db2b8b6e
SP		 593 print_uint(PRINT_ANY,
594 "erspan_ver", "erspan_ver %u ", erspan_ver);
28976362
WT		 595 }
596
597 if (tb[IFLA_GRE_ERSPAN_DIR]) {
598 __u8 erspan_dir = rta_getattr_u8(tb[IFLA_GRE_ERSPAN_DIR]);
599
600 if (erspan_dir == 0)
601 print_string(PRINT_ANY, "erspan_dir",
602 "erspan_dir ingress ", NULL);
603 else
604 print_string(PRINT_ANY, "erspan_dir",
605 "erspan_dir egress ", NULL);
606 }
607
608 if (tb[IFLA_GRE_ERSPAN_HWID]) {
609 __u16 erspan_hwid = rta_getattr_u16(tb[IFLA_GRE_ERSPAN_HWID]);
610
db2b8b6e 611 print_0xhex(PRINT_ANY,
90c5c969 612 "erspan_hwid", "erspan_hwid %#llx ", erspan_hwid);
8595cc40
WT		 613 }
614
bad76e6b
SP		 615 tnl_print_encap(tb,
616 IFLA_GRE_ENCAP_TYPE,
617 IFLA_GRE_ENCAP_FLAGS,
618 IFLA_GRE_ENCAP_SPORT,
619 IFLA_GRE_ENCAP_DPORT);
af89576d 620}
621
622struct link_util ip6gre_link_util = {
623 .id = "ip6gre",
624 .maxattr = IFLA_GRE_MAX,
625 .parse_opt = gre_parse_opt,
626 .print_opt = gre_print_opt,
561e650e 627 .print_help = gre_print_help,
af89576d 628};
629
630struct link_util ip6gretap_link_util = {
631 .id = "ip6gretap",
632 .maxattr = IFLA_GRE_MAX,
633 .parse_opt = gre_parse_opt,
634 .print_opt = gre_print_opt,
561e650e 635 .print_help = gre_print_help,
af89576d 636};
8595cc40
WT		 637
638struct link_util ip6erspan_link_util = {
639 .id = "ip6erspan",
640 .maxattr = IFLA_GRE_MAX,
641 .parse_opt = gre_parse_opt,
642 .print_opt = gre_print_opt,
643 .print_help = gre_print_help,
644};
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