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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 | ||
20927e05 PM |
26 | static bool gre_is_erspan(struct link_util *lu) |
27 | { | |
28 | return !strcmp(lu->id, "erspan"); | |
29 | } | |
30 | ||
ae91205c | 31 | static void gre_print_help(struct link_util *lu, int argc, char **argv, FILE *f) |
561e650e | 32 | { |
20927e05 PM |
33 | bool is_erspan = gre_is_erspan(lu); |
34 | ||
8b471354 | 35 | fprintf(f, |
8589eb4e MC |
36 | "Usage: ... %-9s [ remote ADDR ]\n" |
37 | " [ local ADDR ]\n" | |
38 | " [ [no][i|o]seq ]\n" | |
39 | " [ [i|o]key KEY | no[i|o]key ]\n" | |
40 | " [ [no][i|o]csum ]\n" | |
41 | " [ ttl TTL ]\n" | |
42 | " [ tos TOS ]\n" | |
43 | " [ [no]pmtudisc ]\n" | |
44 | " [ [no]ignore-df ]\n" | |
45 | " [ dev PHYS_DEV ]\n" | |
46 | " [ fwmark MARK ]\n" | |
47 | " [ external ]\n" | |
48 | " [ noencap ]\n" | |
49 | " [ encap { fou | gue | none } ]\n" | |
50 | " [ encap-sport PORT ]\n" | |
51 | " [ encap-dport PORT ]\n" | |
52 | " [ [no]encap-csum ]\n" | |
53 | " [ [no]encap-csum6 ]\n" | |
20927e05 PM |
54 | " [ [no]encap-remcsum ]\n", lu->id); |
55 | if (is_erspan) | |
56 | fprintf(f, | |
57 | " [ erspan_ver version ]\n" | |
58 | " [ erspan IDX ]\n" | |
59 | " [ erspan_dir { ingress | egress } ]\n" | |
60 | " [ erspan_hwid hwid ]\n"); | |
61 | fprintf(f, | |
8b471354 | 62 | "\n" |
8589eb4e MC |
63 | "Where: ADDR := { IP_ADDRESS | any }\n" |
64 | " TOS := { NUMBER | inherit }\n" | |
65 | " TTL := { 1..255 | inherit }\n" | |
66 | " KEY := { DOTTED_QUAD | NUMBER }\n" | |
20927e05 | 67 | " MARK := { 0x0..0xffffffff }\n"); |
561e650e | 68 | } |
69 | ||
237d9e82 HX |
70 | static int gre_parse_opt(struct link_util *lu, int argc, char **argv, |
71 | struct nlmsghdr *n) | |
72 | { | |
28254695 | 73 | struct ifinfomsg *ifi = NLMSG_DATA(n); |
72c771b2 HX |
74 | struct { |
75 | struct nlmsghdr n; | |
76 | struct ifinfomsg i; | |
d17b136f PS |
77 | } req = { |
78 | .n.nlmsg_len = NLMSG_LENGTH(sizeof(*ifi)), | |
79 | .n.nlmsg_flags = NLM_F_REQUEST, | |
80 | .n.nlmsg_type = RTM_GETLINK, | |
81 | .i.ifi_family = preferred_family, | |
82 | .i.ifi_index = ifi->ifi_index, | |
83 | }; | |
08ede25f | 84 | struct nlmsghdr *answer; |
72c771b2 HX |
85 | struct rtattr *tb[IFLA_MAX + 1]; |
86 | struct rtattr *linkinfo[IFLA_INFO_MAX+1]; | |
87 | struct rtattr *greinfo[IFLA_GRE_MAX + 1]; | |
5bd93795 | 88 | int len; |
237d9e82 HX |
89 | __u16 iflags = 0; |
90 | __u16 oflags = 0; | |
1f44b937 SP |
91 | __be32 ikey = 0; |
92 | __be32 okey = 0; | |
a066cc66 | 93 | inet_prefix saddr, daddr; |
72c771b2 | 94 | __u8 pmtudisc = 1; |
5bd93795 | 95 | __u8 ignore_df = 0; |
72c771b2 | 96 | __u8 tos = 0; |
5bd93795 SP |
97 | __u8 ttl = 0; |
98 | __u32 link = 0; | |
80c24b09 TH |
99 | __u16 encaptype = 0; |
100 | __u16 encapflags = 0; | |
101 | __u16 encapsport = 0; | |
102 | __u16 encapdport = 0; | |
926b39e1 | 103 | __u8 metadata = 0; |
ad4b1425 | 104 | __u32 fwmark = 0; |
20927e05 | 105 | bool is_erspan = gre_is_erspan(lu); |
9a1381d5 | 106 | __u32 erspan_idx = 0; |
83c543af | 107 | __u8 erspan_ver = 1; |
28976362 WT |
108 | __u8 erspan_dir = 0; |
109 | __u16 erspan_hwid = 0; | |
72c771b2 | 110 | |
a066cc66 SP |
111 | inet_prefix_reset(&saddr); |
112 | inet_prefix_reset(&daddr); | |
113 | ||
72c771b2 | 114 | if (!(n->nlmsg_flags & NLM_F_CREATE)) { |
a066cc66 SP |
115 | const struct rtattr *rta; |
116 | ||
86bf43c7 | 117 | if (rtnl_talk(&rth, &req.n, &answer) < 0) { |
72c771b2 HX |
118 | get_failed: |
119 | fprintf(stderr, | |
120 | "Failed to get existing tunnel info.\n"); | |
121 | return -1; | |
122 | } | |
123 | ||
86bf43c7 | 124 | len = answer->nlmsg_len; |
72c771b2 HX |
125 | len -= NLMSG_LENGTH(sizeof(*ifi)); |
126 | if (len < 0) | |
127 | goto get_failed; | |
128 | ||
86bf43c7 | 129 | parse_rtattr(tb, IFLA_MAX, IFLA_RTA(NLMSG_DATA(answer)), len); |
72c771b2 HX |
130 | |
131 | if (!tb[IFLA_LINKINFO]) | |
132 | goto get_failed; | |
133 | ||
134 | parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb[IFLA_LINKINFO]); | |
135 | ||
136 | if (!linkinfo[IFLA_INFO_DATA]) | |
137 | goto get_failed; | |
138 | ||
139 | parse_rtattr_nested(greinfo, IFLA_GRE_MAX, | |
140 | linkinfo[IFLA_INFO_DATA]); | |
141 | ||
a066cc66 SP |
142 | rta = greinfo[IFLA_GRE_LOCAL]; |
143 | if (rta && get_addr_rta(&saddr, rta, AF_INET)) | |
144 | goto get_failed; | |
145 | ||
146 | rta = greinfo[IFLA_GRE_REMOTE]; | |
147 | if (rta && get_addr_rta(&daddr, rta, AF_INET)) | |
148 | goto get_failed; | |
149 | ||
72c771b2 | 150 | if (greinfo[IFLA_GRE_IKEY]) |
ff24746c | 151 | ikey = rta_getattr_u32(greinfo[IFLA_GRE_IKEY]); |
72c771b2 HX |
152 | |
153 | if (greinfo[IFLA_GRE_OKEY]) | |
ff24746c | 154 | okey = rta_getattr_u32(greinfo[IFLA_GRE_OKEY]); |
72c771b2 HX |
155 | |
156 | if (greinfo[IFLA_GRE_IFLAGS]) | |
ff24746c | 157 | iflags = rta_getattr_u16(greinfo[IFLA_GRE_IFLAGS]); |
72c771b2 HX |
158 | |
159 | if (greinfo[IFLA_GRE_OFLAGS]) | |
ff24746c | 160 | oflags = rta_getattr_u16(greinfo[IFLA_GRE_OFLAGS]); |
72c771b2 | 161 | |
72c771b2 | 162 | if (greinfo[IFLA_GRE_PMTUDISC]) |
ff24746c | 163 | pmtudisc = rta_getattr_u8( |
72c771b2 HX |
164 | greinfo[IFLA_GRE_PMTUDISC]); |
165 | ||
5bd93795 SP |
166 | if (greinfo[IFLA_GRE_IGNORE_DF]) |
167 | ignore_df = | |
168 | !!rta_getattr_u8(greinfo[IFLA_GRE_IGNORE_DF]); | |
72c771b2 HX |
169 | |
170 | if (greinfo[IFLA_GRE_TOS]) | |
ff24746c | 171 | tos = rta_getattr_u8(greinfo[IFLA_GRE_TOS]); |
72c771b2 | 172 | |
5bd93795 SP |
173 | if (greinfo[IFLA_GRE_TTL]) |
174 | ttl = rta_getattr_u8(greinfo[IFLA_GRE_TTL]); | |
175 | ||
72c771b2 | 176 | if (greinfo[IFLA_GRE_LINK]) |
a6addd5c | 177 | link = rta_getattr_u32(greinfo[IFLA_GRE_LINK]); |
80c24b09 TH |
178 | |
179 | if (greinfo[IFLA_GRE_ENCAP_TYPE]) | |
180 | encaptype = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_TYPE]); | |
5bd93795 | 181 | |
80c24b09 TH |
182 | if (greinfo[IFLA_GRE_ENCAP_FLAGS]) |
183 | encapflags = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_FLAGS]); | |
5bd93795 | 184 | |
80c24b09 TH |
185 | if (greinfo[IFLA_GRE_ENCAP_SPORT]) |
186 | encapsport = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_SPORT]); | |
5bd93795 | 187 | |
80c24b09 TH |
188 | if (greinfo[IFLA_GRE_ENCAP_DPORT]) |
189 | encapdport = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_DPORT]); | |
926b39e1 PA |
190 | |
191 | if (greinfo[IFLA_GRE_COLLECT_METADATA]) | |
192 | metadata = 1; | |
ad4b1425 CG |
193 | |
194 | if (greinfo[IFLA_GRE_FWMARK]) | |
195 | fwmark = rta_getattr_u32(greinfo[IFLA_GRE_FWMARK]); | |
9a1381d5 WT |
196 | |
197 | if (greinfo[IFLA_GRE_ERSPAN_INDEX]) | |
198 | erspan_idx = rta_getattr_u32(greinfo[IFLA_GRE_ERSPAN_INDEX]); | |
86bf43c7 | 199 | |
28976362 WT |
200 | if (greinfo[IFLA_GRE_ERSPAN_VER]) |
201 | erspan_ver = rta_getattr_u8(greinfo[IFLA_GRE_ERSPAN_VER]); | |
202 | ||
203 | if (greinfo[IFLA_GRE_ERSPAN_DIR]) | |
204 | erspan_dir = rta_getattr_u8(greinfo[IFLA_GRE_ERSPAN_DIR]); | |
205 | ||
206 | if (greinfo[IFLA_GRE_ERSPAN_HWID]) | |
207 | erspan_hwid = rta_getattr_u16(greinfo[IFLA_GRE_ERSPAN_HWID]); | |
208 | ||
86bf43c7 | 209 | free(answer); |
72c771b2 | 210 | } |
237d9e82 HX |
211 | |
212 | while (argc > 0) { | |
213 | if (!matches(*argv, "key")) { | |
237d9e82 HX |
214 | NEXT_ARG(); |
215 | iflags |= GRE_KEY; | |
216 | oflags |= GRE_KEY; | |
1f44b937 | 217 | ikey = okey = tnl_parse_key("key", *argv); |
7f520601 SD |
218 | } else if (!matches(*argv, "nokey")) { |
219 | iflags &= ~GRE_KEY; | |
220 | oflags &= ~GRE_KEY; | |
221 | ikey = okey = 0; | |
237d9e82 | 222 | } else if (!matches(*argv, "ikey")) { |
237d9e82 HX |
223 | NEXT_ARG(); |
224 | iflags |= GRE_KEY; | |
1f44b937 | 225 | ikey = tnl_parse_key("ikey", *argv); |
7f520601 SD |
226 | } else if (!matches(*argv, "noikey")) { |
227 | iflags &= ~GRE_KEY; | |
228 | ikey = 0; | |
237d9e82 | 229 | } else if (!matches(*argv, "okey")) { |
237d9e82 HX |
230 | NEXT_ARG(); |
231 | oflags |= GRE_KEY; | |
1f44b937 | 232 | okey = tnl_parse_key("okey", *argv); |
7f520601 SD |
233 | } else if (!matches(*argv, "nookey")) { |
234 | oflags &= ~GRE_KEY; | |
235 | okey = 0; | |
237d9e82 HX |
236 | } else if (!matches(*argv, "seq")) { |
237 | iflags |= GRE_SEQ; | |
238 | oflags |= GRE_SEQ; | |
7f520601 SD |
239 | } else if (!matches(*argv, "noseq")) { |
240 | iflags &= ~GRE_SEQ; | |
241 | oflags &= ~GRE_SEQ; | |
237d9e82 HX |
242 | } else if (!matches(*argv, "iseq")) { |
243 | iflags |= GRE_SEQ; | |
7f520601 SD |
244 | } else if (!matches(*argv, "noiseq")) { |
245 | iflags &= ~GRE_SEQ; | |
237d9e82 HX |
246 | } else if (!matches(*argv, "oseq")) { |
247 | oflags |= GRE_SEQ; | |
7f520601 SD |
248 | } else if (!matches(*argv, "nooseq")) { |
249 | oflags &= ~GRE_SEQ; | |
237d9e82 HX |
250 | } else if (!matches(*argv, "csum")) { |
251 | iflags |= GRE_CSUM; | |
252 | oflags |= GRE_CSUM; | |
7f520601 SD |
253 | } else if (!matches(*argv, "nocsum")) { |
254 | iflags &= ~GRE_CSUM; | |
255 | oflags &= ~GRE_CSUM; | |
237d9e82 HX |
256 | } else if (!matches(*argv, "icsum")) { |
257 | iflags |= GRE_CSUM; | |
7f520601 SD |
258 | } else if (!matches(*argv, "noicsum")) { |
259 | iflags &= ~GRE_CSUM; | |
237d9e82 HX |
260 | } else if (!matches(*argv, "ocsum")) { |
261 | oflags |= GRE_CSUM; | |
7f520601 SD |
262 | } else if (!matches(*argv, "noocsum")) { |
263 | oflags &= ~GRE_CSUM; | |
237d9e82 | 264 | } else if (!matches(*argv, "nopmtudisc")) { |
72c771b2 | 265 | pmtudisc = 0; |
237d9e82 | 266 | } else if (!matches(*argv, "pmtudisc")) { |
72c771b2 | 267 | pmtudisc = 1; |
237d9e82 HX |
268 | } else if (!matches(*argv, "remote")) { |
269 | NEXT_ARG(); | |
a066cc66 | 270 | get_addr(&daddr, *argv, AF_INET); |
237d9e82 HX |
271 | } else if (!matches(*argv, "local")) { |
272 | NEXT_ARG(); | |
a066cc66 | 273 | get_addr(&saddr, *argv, AF_INET); |
237d9e82 | 274 | } else if (!matches(*argv, "dev")) { |
237d9e82 | 275 | NEXT_ARG(); |
7a14358b | 276 | link = ll_name_to_index(*argv); |
fe99adbc SP |
277 | if (!link) |
278 | exit(nodev(*argv)); | |
237d9e82 | 279 | } else if (!matches(*argv, "ttl") || |
c4743c4d SP |
280 | !matches(*argv, "hoplimit") || |
281 | !matches(*argv, "hlim")) { | |
237d9e82 HX |
282 | NEXT_ARG(); |
283 | if (strcmp(*argv, "inherit") != 0) { | |
c4743c4d | 284 | if (get_u8(&ttl, *argv, 0)) |
237d9e82 | 285 | invarg("invalid TTL\n", *argv); |
079e6781 RS |
286 | } else |
287 | ttl = 0; | |
237d9e82 HX |
288 | } else if (!matches(*argv, "tos") || |
289 | !matches(*argv, "tclass") || | |
290 | !matches(*argv, "dsfield")) { | |
291 | __u32 uval; | |
237d9e82 HX |
292 | |
293 | NEXT_ARG(); | |
294 | if (strcmp(*argv, "inherit") != 0) { | |
295 | if (rtnl_dsfield_a2n(&uval, *argv)) | |
296 | invarg("bad TOS value", *argv); | |
297 | tos = uval; | |
298 | } else | |
299 | tos = 1; | |
80c24b09 TH |
300 | } else if (strcmp(*argv, "noencap") == 0) { |
301 | encaptype = TUNNEL_ENCAP_NONE; | |
302 | } else if (strcmp(*argv, "encap") == 0) { | |
303 | NEXT_ARG(); | |
304 | if (strcmp(*argv, "fou") == 0) | |
305 | encaptype = TUNNEL_ENCAP_FOU; | |
306 | else if (strcmp(*argv, "gue") == 0) | |
307 | encaptype = TUNNEL_ENCAP_GUE; | |
308 | else if (strcmp(*argv, "none") == 0) | |
309 | encaptype = TUNNEL_ENCAP_NONE; | |
310 | else | |
311 | invarg("Invalid encap type.", *argv); | |
312 | } else if (strcmp(*argv, "encap-sport") == 0) { | |
313 | NEXT_ARG(); | |
314 | if (strcmp(*argv, "auto") == 0) | |
315 | encapsport = 0; | |
316 | else if (get_u16(&encapsport, *argv, 0)) | |
317 | invarg("Invalid source port.", *argv); | |
318 | } else if (strcmp(*argv, "encap-dport") == 0) { | |
319 | NEXT_ARG(); | |
320 | if (get_u16(&encapdport, *argv, 0)) | |
321 | invarg("Invalid destination port.", *argv); | |
322 | } else if (strcmp(*argv, "encap-csum") == 0) { | |
323 | encapflags |= TUNNEL_ENCAP_FLAG_CSUM; | |
324 | } else if (strcmp(*argv, "noencap-csum") == 0) { | |
325 | encapflags &= ~TUNNEL_ENCAP_FLAG_CSUM; | |
326 | } else if (strcmp(*argv, "encap-udp6-csum") == 0) { | |
327 | encapflags |= TUNNEL_ENCAP_FLAG_CSUM6; | |
328 | } else if (strcmp(*argv, "noencap-udp6-csum") == 0) { | |
147ade01 | 329 | encapflags &= ~TUNNEL_ENCAP_FLAG_CSUM6; |
858dbb20 TH |
330 | } else if (strcmp(*argv, "encap-remcsum") == 0) { |
331 | encapflags |= TUNNEL_ENCAP_FLAG_REMCSUM; | |
332 | } else if (strcmp(*argv, "noencap-remcsum") == 0) { | |
147ade01 | 333 | encapflags &= ~TUNNEL_ENCAP_FLAG_REMCSUM; |
926b39e1 PA |
334 | } else if (strcmp(*argv, "external") == 0) { |
335 | metadata = 1; | |
adbb2965 PP |
336 | } else if (strcmp(*argv, "ignore-df") == 0) { |
337 | ignore_df = 1; | |
338 | } else if (strcmp(*argv, "noignore-df") == 0) { | |
339 | /* | |
340 | *only the lsb is significant, use 2 for presence | |
341 | */ | |
342 | ignore_df = 2; | |
ad4b1425 CG |
343 | } else if (strcmp(*argv, "fwmark") == 0) { |
344 | NEXT_ARG(); | |
345 | if (get_u32(&fwmark, *argv, 0)) | |
346 | invarg("invalid fwmark\n", *argv); | |
20927e05 | 347 | } else if (is_erspan && strcmp(*argv, "erspan") == 0) { |
9a1381d5 WT |
348 | NEXT_ARG(); |
349 | if (get_u32(&erspan_idx, *argv, 0)) | |
350 | invarg("invalid erspan index\n", *argv); | |
351 | if (erspan_idx & ~((1<<20) - 1) || erspan_idx == 0) | |
352 | invarg("erspan index must be > 0 and <= 20-bit\n", *argv); | |
20927e05 | 353 | } else if (is_erspan && strcmp(*argv, "erspan_ver") == 0) { |
28976362 WT |
354 | NEXT_ARG(); |
355 | if (get_u8(&erspan_ver, *argv, 0)) | |
356 | invarg("invalid erspan version\n", *argv); | |
846b6b2d WT |
357 | if (erspan_ver > 2) |
358 | invarg("erspan version must be 0/1/2\n", *argv); | |
20927e05 | 359 | } else if (is_erspan && strcmp(*argv, "erspan_dir") == 0) { |
28976362 WT |
360 | NEXT_ARG(); |
361 | if (matches(*argv, "ingress") == 0) | |
362 | erspan_dir = 0; | |
363 | else if (matches(*argv, "egress") == 0) | |
364 | erspan_dir = 1; | |
365 | else | |
366 | invarg("Invalid erspan direction.", *argv); | |
20927e05 | 367 | } else if (is_erspan && strcmp(*argv, "erspan_hwid") == 0) { |
28976362 WT |
368 | NEXT_ARG(); |
369 | if (get_u16(&erspan_hwid, *argv, 0)) | |
370 | invarg("invalid erspan hwid\n", *argv); | |
ae91205c SP |
371 | } else { |
372 | gre_print_help(lu, argc, argv, stderr); | |
373 | return -1; | |
374 | } | |
237d9e82 HX |
375 | argc--; argv++; |
376 | } | |
377 | ||
a066cc66 SP |
378 | if (is_addrtype_inet_multi(&daddr)) { |
379 | if (!ikey) { | |
380 | ikey = daddr.data[0]; | |
381 | iflags |= GRE_KEY; | |
382 | } | |
383 | if (!okey) { | |
384 | okey = daddr.data[0]; | |
385 | oflags |= GRE_KEY; | |
386 | } | |
387 | if (!is_addrtype_inet_not_unspec(&saddr)) { | |
388 | fprintf(stderr, | |
389 | "A broadcast tunnel requires a source address.\n"); | |
390 | return -1; | |
391 | } | |
237d9e82 HX |
392 | } |
393 | ||
5bd93795 | 394 | if (metadata) { |
df217d5d | 395 | addattr_l(n, 1024, IFLA_GRE_COLLECT_METADATA, NULL, 0); |
5bd93795 | 396 | return 0; |
df217d5d | 397 | } |
237d9e82 | 398 | |
5bd93795 SP |
399 | addattr32(n, 1024, IFLA_GRE_IKEY, ikey); |
400 | addattr32(n, 1024, IFLA_GRE_OKEY, okey); | |
401 | addattr_l(n, 1024, IFLA_GRE_IFLAGS, &iflags, 2); | |
402 | addattr_l(n, 1024, IFLA_GRE_OFLAGS, &oflags, 2); | |
fa1e658e | 403 | if (is_addrtype_inet_not_unspec(&saddr)) |
a066cc66 | 404 | addattr_l(n, 1024, IFLA_GRE_LOCAL, saddr.data, saddr.bytelen); |
fa1e658e | 405 | if (is_addrtype_inet_not_unspec(&daddr)) |
a066cc66 | 406 | addattr_l(n, 1024, IFLA_GRE_REMOTE, daddr.data, daddr.bytelen); |
5bd93795 SP |
407 | addattr_l(n, 1024, IFLA_GRE_PMTUDISC, &pmtudisc, 1); |
408 | if (ignore_df) | |
409 | addattr8(n, 1024, IFLA_GRE_IGNORE_DF, ignore_df & 1); | |
410 | addattr_l(n, 1024, IFLA_GRE_TOS, &tos, 1); | |
411 | if (link) | |
412 | addattr32(n, 1024, IFLA_GRE_LINK, link); | |
413 | addattr_l(n, 1024, IFLA_GRE_TTL, &ttl, 1); | |
414 | addattr32(n, 1024, IFLA_GRE_FWMARK, fwmark); | |
20927e05 | 415 | if (is_erspan) { |
5bd93795 SP |
416 | addattr8(n, 1024, IFLA_GRE_ERSPAN_VER, erspan_ver); |
417 | if (erspan_ver == 1 && erspan_idx != 0) { | |
418 | addattr32(n, 1024, IFLA_GRE_ERSPAN_INDEX, erspan_idx); | |
419 | } else if (erspan_ver == 2) { | |
420 | addattr8(n, 1024, IFLA_GRE_ERSPAN_DIR, erspan_dir); | |
421 | addattr16(n, 1024, IFLA_GRE_ERSPAN_HWID, erspan_hwid); | |
422 | } | |
423 | } | |
424 | addattr16(n, 1024, IFLA_GRE_ENCAP_TYPE, encaptype); | |
425 | addattr16(n, 1024, IFLA_GRE_ENCAP_FLAGS, encapflags); | |
426 | addattr16(n, 1024, IFLA_GRE_ENCAP_SPORT, htons(encapsport)); | |
427 | addattr16(n, 1024, IFLA_GRE_ENCAP_DPORT, htons(encapdport)); | |
428 | ||
237d9e82 HX |
429 | return 0; |
430 | } | |
431 | ||
00ff4b8e | 432 | static void gre_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) |
237d9e82 | 433 | { |
237d9e82 | 434 | char s2[64]; |
5bd93795 SP |
435 | __u16 iflags = 0; |
436 | __u16 oflags = 0; | |
375560c4 | 437 | __u8 ttl = 0; |
3caa526c | 438 | __u8 tos = 0; |
237d9e82 | 439 | |
00ff4b8e SP |
440 | if (!tb) |
441 | return; | |
442 | ||
443 | if (tb[IFLA_GRE_COLLECT_METADATA]) { | |
d6abae5a | 444 | print_bool(PRINT_ANY, "external", "external ", true); |
00ff4b8e SP |
445 | return; |
446 | } | |
447 | ||
b761fc41 SP |
448 | tnl_print_endpoint("remote", tb[IFLA_GRE_REMOTE], AF_INET); |
449 | tnl_print_endpoint("local", tb[IFLA_GRE_LOCAL], AF_INET); | |
237d9e82 | 450 | |
45d3a6ef | 451 | if (tb[IFLA_GRE_LINK]) { |
5bd93795 | 452 | __u32 link = rta_getattr_u32(tb[IFLA_GRE_LINK]); |
237d9e82 | 453 | |
45d3a6ef SP |
454 | if (link) { |
455 | print_string(PRINT_ANY, "link", "dev %s ", | |
456 | ll_index_to_name(link)); | |
457 | } | |
237d9e82 HX |
458 | } |
459 | ||
375560c4 SP |
460 | if (tb[IFLA_GRE_TTL]) |
461 | ttl = rta_getattr_u8(tb[IFLA_GRE_TTL]); | |
462 | if (is_json_context() || ttl) | |
463 | print_uint(PRINT_ANY, "ttl", "ttl %u ", ttl); | |
464 | else | |
e2d45883 | 465 | print_string(PRINT_FP, NULL, "ttl %s ", "inherit"); |
e2d45883 | 466 | |
3caa526c SP |
467 | if (tb[IFLA_GRE_TOS]) |
468 | tos = rta_getattr_u8(tb[IFLA_GRE_TOS]); | |
469 | if (tos) { | |
470 | if (is_json_context() || tos != 1) | |
90c5c969 | 471 | print_0xhex(PRINT_ANY, "tos", "tos %#llx ", tos); |
3caa526c SP |
472 | else |
473 | print_string(PRINT_FP, NULL, "tos %s ", "inherit"); | |
237d9e82 HX |
474 | } |
475 | ||
e2d45883 JF |
476 | if (tb[IFLA_GRE_PMTUDISC]) { |
477 | if (!rta_getattr_u8(tb[IFLA_GRE_PMTUDISC])) | |
478 | print_bool(PRINT_ANY, "pmtudisc", "nopmtudisc ", false); | |
479 | else | |
480 | print_bool(PRINT_JSON, "pmtudisc", NULL, true); | |
481 | } | |
237d9e82 | 482 | |
00ff4b8e SP |
483 | if (tb[IFLA_GRE_IGNORE_DF] && rta_getattr_u8(tb[IFLA_GRE_IGNORE_DF])) |
484 | print_bool(PRINT_ANY, "ignore_df", "ignore-df ", true); | |
485 | ||
237d9e82 | 486 | if (tb[IFLA_GRE_IFLAGS]) |
ff24746c | 487 | iflags = rta_getattr_u16(tb[IFLA_GRE_IFLAGS]); |
237d9e82 HX |
488 | |
489 | if (tb[IFLA_GRE_OFLAGS]) | |
ff24746c | 490 | oflags = rta_getattr_u16(tb[IFLA_GRE_OFLAGS]); |
237d9e82 | 491 | |
71816553 | 492 | if ((iflags & GRE_KEY) && tb[IFLA_GRE_IKEY]) { |
237d9e82 | 493 | inet_ntop(AF_INET, RTA_DATA(tb[IFLA_GRE_IKEY]), s2, sizeof(s2)); |
e2d45883 | 494 | print_string(PRINT_ANY, "ikey", "ikey %s ", s2); |
237d9e82 HX |
495 | } |
496 | ||
71816553 | 497 | if ((oflags & GRE_KEY) && tb[IFLA_GRE_OKEY]) { |
237d9e82 | 498 | inet_ntop(AF_INET, RTA_DATA(tb[IFLA_GRE_OKEY]), s2, sizeof(s2)); |
e2d45883 | 499 | print_string(PRINT_ANY, "okey", "okey %s ", s2); |
237d9e82 HX |
500 | } |
501 | ||
502 | if (iflags & GRE_SEQ) | |
e2d45883 | 503 | print_bool(PRINT_ANY, "iseq", "iseq ", true); |
237d9e82 | 504 | if (oflags & GRE_SEQ) |
e2d45883 | 505 | print_bool(PRINT_ANY, "oseq", "oseq ", true); |
237d9e82 | 506 | if (iflags & GRE_CSUM) |
e2d45883 | 507 | print_bool(PRINT_ANY, "icsum", "icsum ", true); |
237d9e82 | 508 | if (oflags & GRE_CSUM) |
e2d45883 JF |
509 | print_bool(PRINT_ANY, "ocsum", "ocsum ", true); |
510 | ||
511 | if (tb[IFLA_GRE_FWMARK]) { | |
512 | __u32 fwmark = rta_getattr_u32(tb[IFLA_GRE_FWMARK]); | |
513 | ||
514 | if (fwmark) { | |
e97ad3d2 | 515 | print_0xhex(PRINT_ANY, |
90c5c969 | 516 | "fwmark", "fwmark %#llx ", fwmark); |
e2d45883 | 517 | } |
ad4b1425 | 518 | } |
adbb2965 | 519 | |
9a1381d5 WT |
520 | if (tb[IFLA_GRE_ERSPAN_INDEX]) { |
521 | __u32 erspan_idx = rta_getattr_u32(tb[IFLA_GRE_ERSPAN_INDEX]); | |
522 | ||
3cb92eb9 SP |
523 | print_uint(PRINT_ANY, |
524 | "erspan_index", "erspan_index %u ", erspan_idx); | |
28976362 WT |
525 | } |
526 | ||
527 | if (tb[IFLA_GRE_ERSPAN_VER]) { | |
528 | __u8 erspan_ver = rta_getattr_u8(tb[IFLA_GRE_ERSPAN_VER]); | |
529 | ||
db2b8b6e SP |
530 | print_uint(PRINT_ANY, |
531 | "erspan_ver", "erspan_ver %u ", erspan_ver); | |
28976362 WT |
532 | } |
533 | ||
534 | if (tb[IFLA_GRE_ERSPAN_DIR]) { | |
535 | __u8 erspan_dir = rta_getattr_u8(tb[IFLA_GRE_ERSPAN_DIR]); | |
536 | ||
537 | if (erspan_dir == 0) | |
538 | print_string(PRINT_ANY, "erspan_dir", | |
539 | "erspan_dir ingress ", NULL); | |
540 | else | |
541 | print_string(PRINT_ANY, "erspan_dir", | |
542 | "erspan_dir egress ", NULL); | |
543 | } | |
544 | ||
545 | if (tb[IFLA_GRE_ERSPAN_HWID]) { | |
546 | __u16 erspan_hwid = rta_getattr_u16(tb[IFLA_GRE_ERSPAN_HWID]); | |
547 | ||
db2b8b6e | 548 | print_0xhex(PRINT_ANY, |
90c5c969 | 549 | "erspan_hwid", "erspan_hwid %#llx ", erspan_hwid); |
9a1381d5 WT |
550 | } |
551 | ||
bad76e6b SP |
552 | tnl_print_encap(tb, |
553 | IFLA_GRE_ENCAP_TYPE, | |
554 | IFLA_GRE_ENCAP_FLAGS, | |
555 | IFLA_GRE_ENCAP_SPORT, | |
556 | IFLA_GRE_ENCAP_DPORT); | |
237d9e82 HX |
557 | } |
558 | ||
559 | struct link_util gre_link_util = { | |
560 | .id = "gre", | |
561 | .maxattr = IFLA_GRE_MAX, | |
562 | .parse_opt = gre_parse_opt, | |
563 | .print_opt = gre_print_opt, | |
561e650e | 564 | .print_help = gre_print_help, |
237d9e82 HX |
565 | }; |
566 | ||
567 | struct link_util gretap_link_util = { | |
568 | .id = "gretap", | |
569 | .maxattr = IFLA_GRE_MAX, | |
570 | .parse_opt = gre_parse_opt, | |
571 | .print_opt = gre_print_opt, | |
561e650e | 572 | .print_help = gre_print_help, |
237d9e82 | 573 | }; |
9a1381d5 WT |
574 | |
575 | struct link_util erspan_link_util = { | |
576 | .id = "erspan", | |
577 | .maxattr = IFLA_GRE_MAX, | |
578 | .parse_opt = gre_parse_opt, | |
579 | .print_opt = gre_print_opt, | |
580 | .print_help = gre_print_help, | |
581 | }; |