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Commit | Line | Data |
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237d9e82 HX |
1 | /* |
2 | * link_gre.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: Herbert Xu <herbert@gondor.apana.org.au> | |
10 | * | |
11 | */ | |
12 | ||
13 | #include <string.h> | |
14 | #include <net/if.h> | |
237d9e82 HX |
15 | #include <sys/types.h> |
16 | #include <sys/socket.h> | |
17 | #include <arpa/inet.h> | |
18 | ||
1957a322 SH |
19 | #include <linux/ip.h> |
20 | #include <linux/if_tunnel.h> | |
237d9e82 HX |
21 | #include "rt_names.h" |
22 | #include "utils.h" | |
23 | #include "ip_common.h" | |
24 | #include "tunnel.h" | |
25 | ||
ae91205c | 26 | static void gre_print_help(struct link_util *lu, int argc, char **argv, FILE *f) |
561e650e | 27 | { |
8b471354 | 28 | fprintf(f, |
ae91205c SP |
29 | "Usage: ... %-9s [ remote ADDR ]\n", |
30 | lu->id | |
31 | ); | |
32 | fprintf(f, | |
33 | " [ local ADDR ]\n" | |
34 | " [ [i|o]seq ]\n" | |
35 | " [ [i|o]key KEY ]\n" | |
36 | " [ [i|o]csum ]\n" | |
37 | " [ ttl TTL ]\n" | |
38 | " [ tos TOS ]\n" | |
39 | " [ [no]pmtudisc ]\n" | |
40 | " [ [no]ignore-df ]\n" | |
41 | " [ dev PHYS_DEV ]\n" | |
42 | " [ fwmark MARK ]\n" | |
43 | " [ external ]\n" | |
44 | " [ noencap ]\n" | |
45 | " [ encap { fou | gue | none } ]\n" | |
46 | " [ encap-sport PORT ]\n" | |
47 | " [ encap-dport PORT ]\n" | |
48 | " [ [no]encap-csum ]\n" | |
49 | " [ [no]encap-csum6 ]\n" | |
50 | " [ [no]encap-remcsum ]\n" | |
51 | " [ erspan_ver version ]\n" | |
52 | " [ erspan IDX ]\n" | |
53 | " [ erspan_dir { ingress | egress } ]\n" | |
54 | " [ erspan_hwid hwid ]\n" | |
8b471354 | 55 | "\n" |
ae91205c SP |
56 | ); |
57 | fprintf(f, | |
8b471354 PS |
58 | "Where: ADDR := { IP_ADDRESS | any }\n" |
59 | " TOS := { NUMBER | inherit }\n" | |
60 | " TTL := { 1..255 | inherit }\n" | |
61 | " KEY := { DOTTED_QUAD | NUMBER }\n" | |
ad4b1425 | 62 | " MARK := { 0x0..0xffffffff }\n" |
8b471354 | 63 | ); |
561e650e | 64 | } |
65 | ||
237d9e82 HX |
66 | static int gre_parse_opt(struct link_util *lu, int argc, char **argv, |
67 | struct nlmsghdr *n) | |
68 | { | |
28254695 | 69 | struct ifinfomsg *ifi = NLMSG_DATA(n); |
72c771b2 HX |
70 | struct { |
71 | struct nlmsghdr n; | |
72 | struct ifinfomsg i; | |
d17b136f PS |
73 | } req = { |
74 | .n.nlmsg_len = NLMSG_LENGTH(sizeof(*ifi)), | |
75 | .n.nlmsg_flags = NLM_F_REQUEST, | |
76 | .n.nlmsg_type = RTM_GETLINK, | |
77 | .i.ifi_family = preferred_family, | |
78 | .i.ifi_index = ifi->ifi_index, | |
79 | }; | |
08ede25f | 80 | struct nlmsghdr *answer; |
72c771b2 HX |
81 | struct rtattr *tb[IFLA_MAX + 1]; |
82 | struct rtattr *linkinfo[IFLA_INFO_MAX+1]; | |
83 | struct rtattr *greinfo[IFLA_GRE_MAX + 1]; | |
5bd93795 | 84 | int len; |
237d9e82 HX |
85 | __u16 iflags = 0; |
86 | __u16 oflags = 0; | |
1f44b937 SP |
87 | __be32 ikey = 0; |
88 | __be32 okey = 0; | |
a066cc66 | 89 | inet_prefix saddr, daddr; |
72c771b2 | 90 | __u8 pmtudisc = 1; |
5bd93795 | 91 | __u8 ignore_df = 0; |
72c771b2 | 92 | __u8 tos = 0; |
5bd93795 SP |
93 | __u8 ttl = 0; |
94 | __u32 link = 0; | |
80c24b09 TH |
95 | __u16 encaptype = 0; |
96 | __u16 encapflags = 0; | |
97 | __u16 encapsport = 0; | |
98 | __u16 encapdport = 0; | |
926b39e1 | 99 | __u8 metadata = 0; |
ad4b1425 | 100 | __u32 fwmark = 0; |
9a1381d5 | 101 | __u32 erspan_idx = 0; |
28976362 WT |
102 | __u8 erspan_ver = 0; |
103 | __u8 erspan_dir = 0; | |
104 | __u16 erspan_hwid = 0; | |
72c771b2 | 105 | |
a066cc66 SP |
106 | inet_prefix_reset(&saddr); |
107 | inet_prefix_reset(&daddr); | |
108 | ||
72c771b2 | 109 | if (!(n->nlmsg_flags & NLM_F_CREATE)) { |
a066cc66 SP |
110 | const struct rtattr *rta; |
111 | ||
86bf43c7 | 112 | if (rtnl_talk(&rth, &req.n, &answer) < 0) { |
72c771b2 HX |
113 | get_failed: |
114 | fprintf(stderr, | |
115 | "Failed to get existing tunnel info.\n"); | |
116 | return -1; | |
117 | } | |
118 | ||
86bf43c7 | 119 | len = answer->nlmsg_len; |
72c771b2 HX |
120 | len -= NLMSG_LENGTH(sizeof(*ifi)); |
121 | if (len < 0) | |
122 | goto get_failed; | |
123 | ||
86bf43c7 | 124 | parse_rtattr(tb, IFLA_MAX, IFLA_RTA(NLMSG_DATA(answer)), len); |
72c771b2 HX |
125 | |
126 | if (!tb[IFLA_LINKINFO]) | |
127 | goto get_failed; | |
128 | ||
129 | parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb[IFLA_LINKINFO]); | |
130 | ||
131 | if (!linkinfo[IFLA_INFO_DATA]) | |
132 | goto get_failed; | |
133 | ||
134 | parse_rtattr_nested(greinfo, IFLA_GRE_MAX, | |
135 | linkinfo[IFLA_INFO_DATA]); | |
136 | ||
a066cc66 SP |
137 | rta = greinfo[IFLA_GRE_LOCAL]; |
138 | if (rta && get_addr_rta(&saddr, rta, AF_INET)) | |
139 | goto get_failed; | |
140 | ||
141 | rta = greinfo[IFLA_GRE_REMOTE]; | |
142 | if (rta && get_addr_rta(&daddr, rta, AF_INET)) | |
143 | goto get_failed; | |
144 | ||
72c771b2 | 145 | if (greinfo[IFLA_GRE_IKEY]) |
ff24746c | 146 | ikey = rta_getattr_u32(greinfo[IFLA_GRE_IKEY]); |
72c771b2 HX |
147 | |
148 | if (greinfo[IFLA_GRE_OKEY]) | |
ff24746c | 149 | okey = rta_getattr_u32(greinfo[IFLA_GRE_OKEY]); |
72c771b2 HX |
150 | |
151 | if (greinfo[IFLA_GRE_IFLAGS]) | |
ff24746c | 152 | iflags = rta_getattr_u16(greinfo[IFLA_GRE_IFLAGS]); |
72c771b2 HX |
153 | |
154 | if (greinfo[IFLA_GRE_OFLAGS]) | |
ff24746c | 155 | oflags = rta_getattr_u16(greinfo[IFLA_GRE_OFLAGS]); |
72c771b2 | 156 | |
72c771b2 | 157 | if (greinfo[IFLA_GRE_PMTUDISC]) |
ff24746c | 158 | pmtudisc = rta_getattr_u8( |
72c771b2 HX |
159 | greinfo[IFLA_GRE_PMTUDISC]); |
160 | ||
5bd93795 SP |
161 | if (greinfo[IFLA_GRE_IGNORE_DF]) |
162 | ignore_df = | |
163 | !!rta_getattr_u8(greinfo[IFLA_GRE_IGNORE_DF]); | |
72c771b2 HX |
164 | |
165 | if (greinfo[IFLA_GRE_TOS]) | |
ff24746c | 166 | tos = rta_getattr_u8(greinfo[IFLA_GRE_TOS]); |
72c771b2 | 167 | |
5bd93795 SP |
168 | if (greinfo[IFLA_GRE_TTL]) |
169 | ttl = rta_getattr_u8(greinfo[IFLA_GRE_TTL]); | |
170 | ||
72c771b2 | 171 | if (greinfo[IFLA_GRE_LINK]) |
a6addd5c | 172 | link = rta_getattr_u32(greinfo[IFLA_GRE_LINK]); |
80c24b09 TH |
173 | |
174 | if (greinfo[IFLA_GRE_ENCAP_TYPE]) | |
175 | encaptype = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_TYPE]); | |
5bd93795 | 176 | |
80c24b09 TH |
177 | if (greinfo[IFLA_GRE_ENCAP_FLAGS]) |
178 | encapflags = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_FLAGS]); | |
5bd93795 | 179 | |
80c24b09 TH |
180 | if (greinfo[IFLA_GRE_ENCAP_SPORT]) |
181 | encapsport = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_SPORT]); | |
5bd93795 | 182 | |
80c24b09 TH |
183 | if (greinfo[IFLA_GRE_ENCAP_DPORT]) |
184 | encapdport = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_DPORT]); | |
926b39e1 PA |
185 | |
186 | if (greinfo[IFLA_GRE_COLLECT_METADATA]) | |
187 | metadata = 1; | |
ad4b1425 CG |
188 | |
189 | if (greinfo[IFLA_GRE_FWMARK]) | |
190 | fwmark = rta_getattr_u32(greinfo[IFLA_GRE_FWMARK]); | |
9a1381d5 WT |
191 | |
192 | if (greinfo[IFLA_GRE_ERSPAN_INDEX]) | |
193 | erspan_idx = rta_getattr_u32(greinfo[IFLA_GRE_ERSPAN_INDEX]); | |
86bf43c7 | 194 | |
28976362 WT |
195 | if (greinfo[IFLA_GRE_ERSPAN_VER]) |
196 | erspan_ver = rta_getattr_u8(greinfo[IFLA_GRE_ERSPAN_VER]); | |
197 | ||
198 | if (greinfo[IFLA_GRE_ERSPAN_DIR]) | |
199 | erspan_dir = rta_getattr_u8(greinfo[IFLA_GRE_ERSPAN_DIR]); | |
200 | ||
201 | if (greinfo[IFLA_GRE_ERSPAN_HWID]) | |
202 | erspan_hwid = rta_getattr_u16(greinfo[IFLA_GRE_ERSPAN_HWID]); | |
203 | ||
86bf43c7 | 204 | free(answer); |
72c771b2 | 205 | } |
237d9e82 HX |
206 | |
207 | while (argc > 0) { | |
208 | if (!matches(*argv, "key")) { | |
237d9e82 HX |
209 | NEXT_ARG(); |
210 | iflags |= GRE_KEY; | |
211 | oflags |= GRE_KEY; | |
1f44b937 | 212 | ikey = okey = tnl_parse_key("key", *argv); |
237d9e82 | 213 | } else if (!matches(*argv, "ikey")) { |
237d9e82 HX |
214 | NEXT_ARG(); |
215 | iflags |= GRE_KEY; | |
1f44b937 | 216 | ikey = tnl_parse_key("ikey", *argv); |
237d9e82 | 217 | } else if (!matches(*argv, "okey")) { |
237d9e82 HX |
218 | NEXT_ARG(); |
219 | oflags |= GRE_KEY; | |
1f44b937 | 220 | okey = tnl_parse_key("okey", *argv); |
237d9e82 HX |
221 | } else if (!matches(*argv, "seq")) { |
222 | iflags |= GRE_SEQ; | |
223 | oflags |= GRE_SEQ; | |
224 | } else if (!matches(*argv, "iseq")) { | |
225 | iflags |= GRE_SEQ; | |
226 | } else if (!matches(*argv, "oseq")) { | |
227 | oflags |= GRE_SEQ; | |
228 | } else if (!matches(*argv, "csum")) { | |
229 | iflags |= GRE_CSUM; | |
230 | oflags |= GRE_CSUM; | |
231 | } else if (!matches(*argv, "icsum")) { | |
232 | iflags |= GRE_CSUM; | |
233 | } else if (!matches(*argv, "ocsum")) { | |
234 | oflags |= GRE_CSUM; | |
235 | } else if (!matches(*argv, "nopmtudisc")) { | |
72c771b2 | 236 | pmtudisc = 0; |
237d9e82 | 237 | } else if (!matches(*argv, "pmtudisc")) { |
72c771b2 | 238 | pmtudisc = 1; |
237d9e82 HX |
239 | } else if (!matches(*argv, "remote")) { |
240 | NEXT_ARG(); | |
a066cc66 | 241 | get_addr(&daddr, *argv, AF_INET); |
237d9e82 HX |
242 | } else if (!matches(*argv, "local")) { |
243 | NEXT_ARG(); | |
a066cc66 | 244 | get_addr(&saddr, *argv, AF_INET); |
237d9e82 | 245 | } else if (!matches(*argv, "dev")) { |
237d9e82 | 246 | NEXT_ARG(); |
7a14358b | 247 | link = ll_name_to_index(*argv); |
fe99adbc SP |
248 | if (!link) |
249 | exit(nodev(*argv)); | |
237d9e82 | 250 | } else if (!matches(*argv, "ttl") || |
c4743c4d SP |
251 | !matches(*argv, "hoplimit") || |
252 | !matches(*argv, "hlim")) { | |
237d9e82 HX |
253 | NEXT_ARG(); |
254 | if (strcmp(*argv, "inherit") != 0) { | |
c4743c4d | 255 | if (get_u8(&ttl, *argv, 0)) |
237d9e82 | 256 | invarg("invalid TTL\n", *argv); |
079e6781 RS |
257 | } else |
258 | ttl = 0; | |
237d9e82 HX |
259 | } else if (!matches(*argv, "tos") || |
260 | !matches(*argv, "tclass") || | |
261 | !matches(*argv, "dsfield")) { | |
262 | __u32 uval; | |
237d9e82 HX |
263 | |
264 | NEXT_ARG(); | |
265 | if (strcmp(*argv, "inherit") != 0) { | |
266 | if (rtnl_dsfield_a2n(&uval, *argv)) | |
267 | invarg("bad TOS value", *argv); | |
268 | tos = uval; | |
269 | } else | |
270 | tos = 1; | |
80c24b09 TH |
271 | } else if (strcmp(*argv, "noencap") == 0) { |
272 | encaptype = TUNNEL_ENCAP_NONE; | |
273 | } else if (strcmp(*argv, "encap") == 0) { | |
274 | NEXT_ARG(); | |
275 | if (strcmp(*argv, "fou") == 0) | |
276 | encaptype = TUNNEL_ENCAP_FOU; | |
277 | else if (strcmp(*argv, "gue") == 0) | |
278 | encaptype = TUNNEL_ENCAP_GUE; | |
279 | else if (strcmp(*argv, "none") == 0) | |
280 | encaptype = TUNNEL_ENCAP_NONE; | |
281 | else | |
282 | invarg("Invalid encap type.", *argv); | |
283 | } else if (strcmp(*argv, "encap-sport") == 0) { | |
284 | NEXT_ARG(); | |
285 | if (strcmp(*argv, "auto") == 0) | |
286 | encapsport = 0; | |
287 | else if (get_u16(&encapsport, *argv, 0)) | |
288 | invarg("Invalid source port.", *argv); | |
289 | } else if (strcmp(*argv, "encap-dport") == 0) { | |
290 | NEXT_ARG(); | |
291 | if (get_u16(&encapdport, *argv, 0)) | |
292 | invarg("Invalid destination port.", *argv); | |
293 | } else if (strcmp(*argv, "encap-csum") == 0) { | |
294 | encapflags |= TUNNEL_ENCAP_FLAG_CSUM; | |
295 | } else if (strcmp(*argv, "noencap-csum") == 0) { | |
296 | encapflags &= ~TUNNEL_ENCAP_FLAG_CSUM; | |
297 | } else if (strcmp(*argv, "encap-udp6-csum") == 0) { | |
298 | encapflags |= TUNNEL_ENCAP_FLAG_CSUM6; | |
299 | } else if (strcmp(*argv, "noencap-udp6-csum") == 0) { | |
147ade01 | 300 | encapflags &= ~TUNNEL_ENCAP_FLAG_CSUM6; |
858dbb20 TH |
301 | } else if (strcmp(*argv, "encap-remcsum") == 0) { |
302 | encapflags |= TUNNEL_ENCAP_FLAG_REMCSUM; | |
303 | } else if (strcmp(*argv, "noencap-remcsum") == 0) { | |
147ade01 | 304 | encapflags &= ~TUNNEL_ENCAP_FLAG_REMCSUM; |
926b39e1 PA |
305 | } else if (strcmp(*argv, "external") == 0) { |
306 | metadata = 1; | |
adbb2965 PP |
307 | } else if (strcmp(*argv, "ignore-df") == 0) { |
308 | ignore_df = 1; | |
309 | } else if (strcmp(*argv, "noignore-df") == 0) { | |
310 | /* | |
311 | *only the lsb is significant, use 2 for presence | |
312 | */ | |
313 | ignore_df = 2; | |
ad4b1425 CG |
314 | } else if (strcmp(*argv, "fwmark") == 0) { |
315 | NEXT_ARG(); | |
316 | if (get_u32(&fwmark, *argv, 0)) | |
317 | invarg("invalid fwmark\n", *argv); | |
9a1381d5 WT |
318 | } else if (strcmp(*argv, "erspan") == 0) { |
319 | NEXT_ARG(); | |
320 | if (get_u32(&erspan_idx, *argv, 0)) | |
321 | invarg("invalid erspan index\n", *argv); | |
322 | if (erspan_idx & ~((1<<20) - 1) || erspan_idx == 0) | |
323 | invarg("erspan index must be > 0 and <= 20-bit\n", *argv); | |
28976362 WT |
324 | } else if (strcmp(*argv, "erspan_ver") == 0) { |
325 | NEXT_ARG(); | |
326 | if (get_u8(&erspan_ver, *argv, 0)) | |
327 | invarg("invalid erspan version\n", *argv); | |
328 | if (erspan_ver != 1 && erspan_ver != 2) | |
329 | invarg("erspan version must be 1 or 2\n", *argv); | |
330 | } else if (strcmp(*argv, "erspan_dir") == 0) { | |
331 | NEXT_ARG(); | |
332 | if (matches(*argv, "ingress") == 0) | |
333 | erspan_dir = 0; | |
334 | else if (matches(*argv, "egress") == 0) | |
335 | erspan_dir = 1; | |
336 | else | |
337 | invarg("Invalid erspan direction.", *argv); | |
338 | } else if (strcmp(*argv, "erspan_hwid") == 0) { | |
339 | NEXT_ARG(); | |
340 | if (get_u16(&erspan_hwid, *argv, 0)) | |
341 | invarg("invalid erspan hwid\n", *argv); | |
ae91205c SP |
342 | } else { |
343 | gre_print_help(lu, argc, argv, stderr); | |
344 | return -1; | |
345 | } | |
237d9e82 HX |
346 | argc--; argv++; |
347 | } | |
348 | ||
a066cc66 SP |
349 | if (is_addrtype_inet_multi(&daddr)) { |
350 | if (!ikey) { | |
351 | ikey = daddr.data[0]; | |
352 | iflags |= GRE_KEY; | |
353 | } | |
354 | if (!okey) { | |
355 | okey = daddr.data[0]; | |
356 | oflags |= GRE_KEY; | |
357 | } | |
358 | if (!is_addrtype_inet_not_unspec(&saddr)) { | |
359 | fprintf(stderr, | |
360 | "A broadcast tunnel requires a source address.\n"); | |
361 | return -1; | |
362 | } | |
237d9e82 HX |
363 | } |
364 | ||
5bd93795 | 365 | if (metadata) { |
df217d5d | 366 | addattr_l(n, 1024, IFLA_GRE_COLLECT_METADATA, NULL, 0); |
5bd93795 | 367 | return 0; |
df217d5d | 368 | } |
237d9e82 | 369 | |
5bd93795 SP |
370 | addattr32(n, 1024, IFLA_GRE_IKEY, ikey); |
371 | addattr32(n, 1024, IFLA_GRE_OKEY, okey); | |
372 | addattr_l(n, 1024, IFLA_GRE_IFLAGS, &iflags, 2); | |
373 | addattr_l(n, 1024, IFLA_GRE_OFLAGS, &oflags, 2); | |
a066cc66 SP |
374 | if (is_addrtype_inet(&saddr)) |
375 | addattr_l(n, 1024, IFLA_GRE_LOCAL, saddr.data, saddr.bytelen); | |
376 | if (is_addrtype_inet(&daddr)) | |
377 | addattr_l(n, 1024, IFLA_GRE_REMOTE, daddr.data, daddr.bytelen); | |
5bd93795 SP |
378 | addattr_l(n, 1024, IFLA_GRE_PMTUDISC, &pmtudisc, 1); |
379 | if (ignore_df) | |
380 | addattr8(n, 1024, IFLA_GRE_IGNORE_DF, ignore_df & 1); | |
381 | addattr_l(n, 1024, IFLA_GRE_TOS, &tos, 1); | |
382 | if (link) | |
383 | addattr32(n, 1024, IFLA_GRE_LINK, link); | |
384 | addattr_l(n, 1024, IFLA_GRE_TTL, &ttl, 1); | |
385 | addattr32(n, 1024, IFLA_GRE_FWMARK, fwmark); | |
386 | if (erspan_ver) { | |
387 | addattr8(n, 1024, IFLA_GRE_ERSPAN_VER, erspan_ver); | |
388 | if (erspan_ver == 1 && erspan_idx != 0) { | |
389 | addattr32(n, 1024, IFLA_GRE_ERSPAN_INDEX, erspan_idx); | |
390 | } else if (erspan_ver == 2) { | |
391 | addattr8(n, 1024, IFLA_GRE_ERSPAN_DIR, erspan_dir); | |
392 | addattr16(n, 1024, IFLA_GRE_ERSPAN_HWID, erspan_hwid); | |
393 | } | |
394 | } | |
395 | addattr16(n, 1024, IFLA_GRE_ENCAP_TYPE, encaptype); | |
396 | addattr16(n, 1024, IFLA_GRE_ENCAP_FLAGS, encapflags); | |
397 | addattr16(n, 1024, IFLA_GRE_ENCAP_SPORT, htons(encapsport)); | |
398 | addattr16(n, 1024, IFLA_GRE_ENCAP_DPORT, htons(encapdport)); | |
399 | ||
237d9e82 HX |
400 | return 0; |
401 | } | |
402 | ||
00ff4b8e | 403 | static void gre_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) |
237d9e82 | 404 | { |
237d9e82 | 405 | char s2[64]; |
5bd93795 SP |
406 | __u16 iflags = 0; |
407 | __u16 oflags = 0; | |
375560c4 | 408 | __u8 ttl = 0; |
3caa526c | 409 | __u8 tos = 0; |
237d9e82 | 410 | |
00ff4b8e SP |
411 | if (!tb) |
412 | return; | |
413 | ||
414 | if (tb[IFLA_GRE_COLLECT_METADATA]) { | |
415 | print_bool(PRINT_ANY, "external", "external", true); | |
416 | return; | |
417 | } | |
418 | ||
b761fc41 SP |
419 | tnl_print_endpoint("remote", tb[IFLA_GRE_REMOTE], AF_INET); |
420 | tnl_print_endpoint("local", tb[IFLA_GRE_LOCAL], AF_INET); | |
237d9e82 | 421 | |
45d3a6ef | 422 | if (tb[IFLA_GRE_LINK]) { |
5bd93795 | 423 | __u32 link = rta_getattr_u32(tb[IFLA_GRE_LINK]); |
237d9e82 | 424 | |
45d3a6ef SP |
425 | if (link) { |
426 | print_string(PRINT_ANY, "link", "dev %s ", | |
427 | ll_index_to_name(link)); | |
428 | } | |
237d9e82 HX |
429 | } |
430 | ||
375560c4 SP |
431 | if (tb[IFLA_GRE_TTL]) |
432 | ttl = rta_getattr_u8(tb[IFLA_GRE_TTL]); | |
433 | if (is_json_context() || ttl) | |
434 | print_uint(PRINT_ANY, "ttl", "ttl %u ", ttl); | |
435 | else | |
e2d45883 | 436 | print_string(PRINT_FP, NULL, "ttl %s ", "inherit"); |
e2d45883 | 437 | |
3caa526c SP |
438 | if (tb[IFLA_GRE_TOS]) |
439 | tos = rta_getattr_u8(tb[IFLA_GRE_TOS]); | |
440 | if (tos) { | |
441 | if (is_json_context() || tos != 1) | |
442 | print_0xhex(PRINT_ANY, "tos", "tos 0x%x ", tos); | |
443 | else | |
444 | print_string(PRINT_FP, NULL, "tos %s ", "inherit"); | |
237d9e82 HX |
445 | } |
446 | ||
e2d45883 JF |
447 | if (tb[IFLA_GRE_PMTUDISC]) { |
448 | if (!rta_getattr_u8(tb[IFLA_GRE_PMTUDISC])) | |
449 | print_bool(PRINT_ANY, "pmtudisc", "nopmtudisc ", false); | |
450 | else | |
451 | print_bool(PRINT_JSON, "pmtudisc", NULL, true); | |
452 | } | |
237d9e82 | 453 | |
00ff4b8e SP |
454 | if (tb[IFLA_GRE_IGNORE_DF] && rta_getattr_u8(tb[IFLA_GRE_IGNORE_DF])) |
455 | print_bool(PRINT_ANY, "ignore_df", "ignore-df ", true); | |
456 | ||
237d9e82 | 457 | if (tb[IFLA_GRE_IFLAGS]) |
ff24746c | 458 | iflags = rta_getattr_u16(tb[IFLA_GRE_IFLAGS]); |
237d9e82 HX |
459 | |
460 | if (tb[IFLA_GRE_OFLAGS]) | |
ff24746c | 461 | oflags = rta_getattr_u16(tb[IFLA_GRE_OFLAGS]); |
237d9e82 | 462 | |
71816553 | 463 | if ((iflags & GRE_KEY) && tb[IFLA_GRE_IKEY]) { |
237d9e82 | 464 | inet_ntop(AF_INET, RTA_DATA(tb[IFLA_GRE_IKEY]), s2, sizeof(s2)); |
e2d45883 | 465 | print_string(PRINT_ANY, "ikey", "ikey %s ", s2); |
237d9e82 HX |
466 | } |
467 | ||
71816553 | 468 | if ((oflags & GRE_KEY) && tb[IFLA_GRE_OKEY]) { |
237d9e82 | 469 | inet_ntop(AF_INET, RTA_DATA(tb[IFLA_GRE_OKEY]), s2, sizeof(s2)); |
e2d45883 | 470 | print_string(PRINT_ANY, "okey", "okey %s ", s2); |
237d9e82 HX |
471 | } |
472 | ||
473 | if (iflags & GRE_SEQ) | |
e2d45883 | 474 | print_bool(PRINT_ANY, "iseq", "iseq ", true); |
237d9e82 | 475 | if (oflags & GRE_SEQ) |
e2d45883 | 476 | print_bool(PRINT_ANY, "oseq", "oseq ", true); |
237d9e82 | 477 | if (iflags & GRE_CSUM) |
e2d45883 | 478 | print_bool(PRINT_ANY, "icsum", "icsum ", true); |
237d9e82 | 479 | if (oflags & GRE_CSUM) |
e2d45883 JF |
480 | print_bool(PRINT_ANY, "ocsum", "ocsum ", true); |
481 | ||
482 | if (tb[IFLA_GRE_FWMARK]) { | |
483 | __u32 fwmark = rta_getattr_u32(tb[IFLA_GRE_FWMARK]); | |
484 | ||
485 | if (fwmark) { | |
e97ad3d2 SP |
486 | print_0xhex(PRINT_ANY, |
487 | "fwmark", "fwmark 0x%x ", fwmark); | |
e2d45883 | 488 | } |
ad4b1425 | 489 | } |
adbb2965 | 490 | |
9a1381d5 WT |
491 | if (tb[IFLA_GRE_ERSPAN_INDEX]) { |
492 | __u32 erspan_idx = rta_getattr_u32(tb[IFLA_GRE_ERSPAN_INDEX]); | |
493 | ||
3cb92eb9 SP |
494 | print_uint(PRINT_ANY, |
495 | "erspan_index", "erspan_index %u ", erspan_idx); | |
28976362 WT |
496 | } |
497 | ||
498 | if (tb[IFLA_GRE_ERSPAN_VER]) { | |
499 | __u8 erspan_ver = rta_getattr_u8(tb[IFLA_GRE_ERSPAN_VER]); | |
500 | ||
db2b8b6e SP |
501 | print_uint(PRINT_ANY, |
502 | "erspan_ver", "erspan_ver %u ", erspan_ver); | |
28976362 WT |
503 | } |
504 | ||
505 | if (tb[IFLA_GRE_ERSPAN_DIR]) { | |
506 | __u8 erspan_dir = rta_getattr_u8(tb[IFLA_GRE_ERSPAN_DIR]); | |
507 | ||
508 | if (erspan_dir == 0) | |
509 | print_string(PRINT_ANY, "erspan_dir", | |
510 | "erspan_dir ingress ", NULL); | |
511 | else | |
512 | print_string(PRINT_ANY, "erspan_dir", | |
513 | "erspan_dir egress ", NULL); | |
514 | } | |
515 | ||
516 | if (tb[IFLA_GRE_ERSPAN_HWID]) { | |
517 | __u16 erspan_hwid = rta_getattr_u16(tb[IFLA_GRE_ERSPAN_HWID]); | |
518 | ||
db2b8b6e SP |
519 | print_0xhex(PRINT_ANY, |
520 | "erspan_hwid", "erspan_hwid 0x%x ", erspan_hwid); | |
9a1381d5 WT |
521 | } |
522 | ||
bad76e6b SP |
523 | tnl_print_encap(tb, |
524 | IFLA_GRE_ENCAP_TYPE, | |
525 | IFLA_GRE_ENCAP_FLAGS, | |
526 | IFLA_GRE_ENCAP_SPORT, | |
527 | IFLA_GRE_ENCAP_DPORT); | |
237d9e82 HX |
528 | } |
529 | ||
530 | struct link_util gre_link_util = { | |
531 | .id = "gre", | |
532 | .maxattr = IFLA_GRE_MAX, | |
533 | .parse_opt = gre_parse_opt, | |
534 | .print_opt = gre_print_opt, | |
561e650e | 535 | .print_help = gre_print_help, |
237d9e82 HX |
536 | }; |
537 | ||
538 | struct link_util gretap_link_util = { | |
539 | .id = "gretap", | |
540 | .maxattr = IFLA_GRE_MAX, | |
541 | .parse_opt = gre_parse_opt, | |
542 | .print_opt = gre_print_opt, | |
561e650e | 543 | .print_help = gre_print_help, |
237d9e82 | 544 | }; |
9a1381d5 WT |
545 | |
546 | struct link_util erspan_link_util = { | |
547 | .id = "erspan", | |
548 | .maxattr = IFLA_GRE_MAX, | |
549 | .parse_opt = gre_parse_opt, | |
550 | .print_opt = gre_print_opt, | |
551 | .print_help = gre_print_help, | |
552 | }; |