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9d0efc10 ND |
1 | /* |
2 | * link_ip6tnl.c ip6tnl 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: Nicolas Dichtel <nicolas.dichtel@6wind.com> | |
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 | #include "rt_names.h" | |
23 | #include "utils.h" | |
24 | #include "ip_common.h" | |
25 | #include "tunnel.h" | |
26 | ||
27 | #define IP6_FLOWINFO_TCLASS htonl(0x0FF00000) | |
28 | #define IP6_FLOWINFO_FLOWLABEL htonl(0x000FFFFF) | |
29 | ||
30 | #define DEFAULT_TNL_HOP_LIMIT (64) | |
31 | ||
06e3975f SP |
32 | static void ip6tunnel_print_help(struct link_util *lu, int argc, char **argv, |
33 | FILE *f) | |
9d0efc10 | 34 | { |
06e3975f | 35 | fprintf(f, |
8589eb4e MC |
36 | "Usage: ... %-6s [ remote ADDR ]\n" |
37 | " [ local ADDR ]\n" | |
38 | " [ encaplimit ELIM ]\n" | |
39 | " [ hoplimit HLIM ]\n" | |
40 | " [ tclass TCLASS ]\n" | |
41 | " [ flowlabel FLOWLABEL ]\n" | |
42 | " [ dscp inherit ]\n" | |
43 | " [ [no]allow-localremote ]\n" | |
44 | " [ dev PHYS_DEV ]\n" | |
45 | " [ fwmark MARK ]\n" | |
46 | " [ external ]\n" | |
47 | " [ noencap ]\n" | |
48 | " [ encap { fou | gue | none } ]\n" | |
49 | " [ encap-sport PORT ]\n" | |
50 | " [ encap-dport PORT ]\n" | |
51 | " [ [no]encap-csum ]\n" | |
52 | " [ [no]encap-csum6 ]\n" | |
53 | " [ [no]encap-remcsum ]\n" | |
54 | " [ mode { ip6ip6 | ipip6 | any } ]\n" | |
55 | "\n" | |
56 | "Where: ADDR := IPV6_ADDRESS\n" | |
57 | " ELIM := { none | 0..255 }(default=%d)\n" | |
58 | " HLIM := 0..255 (default=%d)\n" | |
59 | " TCLASS := { 0x0..0xff | inherit }\n" | |
60 | " FLOWLABEL := { 0x0..0xfffff | inherit }\n" | |
61 | " MARK := { 0x0..0xffffffff | inherit }\n", | |
62 | lu->id, | |
63 | IPV6_DEFAULT_TNL_ENCAP_LIMIT, DEFAULT_TNL_HOP_LIMIT); | |
561e650e | 64 | } |
65 | ||
9d0efc10 ND |
66 | static int ip6tunnel_parse_opt(struct link_util *lu, int argc, char **argv, |
67 | struct nlmsghdr *n) | |
68 | { | |
28254695 | 69 | struct ifinfomsg *ifi = NLMSG_DATA(n); |
9d0efc10 ND |
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; |
9d0efc10 ND |
81 | struct rtattr *tb[IFLA_MAX + 1]; |
82 | struct rtattr *linkinfo[IFLA_INFO_MAX+1]; | |
83 | struct rtattr *iptuninfo[IFLA_IPTUN_MAX + 1]; | |
84 | int len; | |
7bda9fd3 | 85 | inet_prefix saddr, daddr; |
9d0efc10 ND |
86 | __u8 hop_limit = DEFAULT_TNL_HOP_LIMIT; |
87 | __u8 encap_limit = IPV6_DEFAULT_TNL_ENCAP_LIMIT; | |
88 | __u32 flowinfo = 0; | |
89 | __u32 flags = 0; | |
9d0efc10 | 90 | __u8 proto = 0; |
5bd93795 | 91 | __u32 link = 0; |
73516e12 TH |
92 | __u16 encaptype = 0; |
93 | __u16 encapflags = TUNNEL_ENCAP_FLAG_CSUM6; | |
94 | __u16 encapsport = 0; | |
95 | __u16 encapdport = 0; | |
4bfe6825 | 96 | __u8 metadata = 0; |
ad4b1425 | 97 | __u32 fwmark = 0; |
9d0efc10 | 98 | |
7bda9fd3 SP |
99 | inet_prefix_reset(&saddr); |
100 | inet_prefix_reset(&daddr); | |
101 | ||
9d0efc10 | 102 | if (!(n->nlmsg_flags & NLM_F_CREATE)) { |
7bda9fd3 SP |
103 | const struct rtattr *rta; |
104 | ||
86bf43c7 | 105 | if (rtnl_talk(&rth, &req.n, &answer) < 0) { |
9d0efc10 ND |
106 | get_failed: |
107 | fprintf(stderr, | |
108 | "Failed to get existing tunnel info.\n"); | |
109 | return -1; | |
110 | } | |
111 | ||
86bf43c7 | 112 | len = answer->nlmsg_len; |
9d0efc10 ND |
113 | len -= NLMSG_LENGTH(sizeof(*ifi)); |
114 | if (len < 0) | |
115 | goto get_failed; | |
116 | ||
86bf43c7 | 117 | parse_rtattr(tb, IFLA_MAX, IFLA_RTA(NLMSG_DATA(answer)), len); |
9d0efc10 ND |
118 | |
119 | if (!tb[IFLA_LINKINFO]) | |
120 | goto get_failed; | |
121 | ||
122 | parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb[IFLA_LINKINFO]); | |
123 | ||
124 | if (!linkinfo[IFLA_INFO_DATA]) | |
125 | goto get_failed; | |
126 | ||
127 | parse_rtattr_nested(iptuninfo, IFLA_IPTUN_MAX, | |
128 | linkinfo[IFLA_INFO_DATA]); | |
129 | ||
7bda9fd3 SP |
130 | rta = iptuninfo[IFLA_IPTUN_LOCAL]; |
131 | if (rta && get_addr_rta(&saddr, rta, AF_INET6)) | |
132 | goto get_failed; | |
9d0efc10 | 133 | |
7bda9fd3 SP |
134 | rta = iptuninfo[IFLA_IPTUN_REMOTE]; |
135 | if (rta && get_addr_rta(&daddr, rta, AF_INET6)) | |
136 | goto get_failed; | |
9d0efc10 ND |
137 | |
138 | if (iptuninfo[IFLA_IPTUN_TTL]) | |
139 | hop_limit = rta_getattr_u8(iptuninfo[IFLA_IPTUN_TTL]); | |
140 | ||
141 | if (iptuninfo[IFLA_IPTUN_ENCAP_LIMIT]) | |
142 | encap_limit = rta_getattr_u8(iptuninfo[IFLA_IPTUN_ENCAP_LIMIT]); | |
143 | ||
144 | if (iptuninfo[IFLA_IPTUN_FLOWINFO]) | |
145 | flowinfo = rta_getattr_u32(iptuninfo[IFLA_IPTUN_FLOWINFO]); | |
146 | ||
147 | if (iptuninfo[IFLA_IPTUN_FLAGS]) | |
148 | flags = rta_getattr_u32(iptuninfo[IFLA_IPTUN_FLAGS]); | |
149 | ||
150 | if (iptuninfo[IFLA_IPTUN_LINK]) | |
151 | link = rta_getattr_u32(iptuninfo[IFLA_IPTUN_LINK]); | |
152 | ||
153 | if (iptuninfo[IFLA_IPTUN_PROTO]) | |
154 | proto = rta_getattr_u8(iptuninfo[IFLA_IPTUN_PROTO]); | |
4bfe6825 AS |
155 | if (iptuninfo[IFLA_IPTUN_COLLECT_METADATA]) |
156 | metadata = 1; | |
ad4b1425 CG |
157 | |
158 | if (iptuninfo[IFLA_IPTUN_FWMARK]) | |
159 | fwmark = rta_getattr_u32(iptuninfo[IFLA_IPTUN_FWMARK]); | |
86bf43c7 HL |
160 | |
161 | free(answer); | |
9d0efc10 ND |
162 | } |
163 | ||
164 | while (argc > 0) { | |
5bd93795 | 165 | if (strcmp(*argv, "mode") == 0) { |
9d0efc10 ND |
166 | NEXT_ARG(); |
167 | if (strcmp(*argv, "ipv6/ipv6") == 0 || | |
168 | strcmp(*argv, "ip6ip6") == 0) | |
169 | proto = IPPROTO_IPV6; | |
170 | else if (strcmp(*argv, "ip/ipv6") == 0 || | |
171 | strcmp(*argv, "ipv4/ipv6") == 0 || | |
172 | strcmp(*argv, "ipip6") == 0 || | |
173 | strcmp(*argv, "ip4ip6") == 0) | |
174 | proto = IPPROTO_IPIP; | |
175 | else if (strcmp(*argv, "any/ipv6") == 0 || | |
176 | strcmp(*argv, "any") == 0) | |
177 | proto = 0; | |
178 | else | |
179 | invarg("Cannot guess tunnel mode.", *argv); | |
180 | } else if (strcmp(*argv, "remote") == 0) { | |
9d0efc10 | 181 | NEXT_ARG(); |
7bda9fd3 | 182 | get_addr(&daddr, *argv, AF_INET6); |
9d0efc10 | 183 | } else if (strcmp(*argv, "local") == 0) { |
9d0efc10 | 184 | NEXT_ARG(); |
7bda9fd3 | 185 | get_addr(&saddr, *argv, AF_INET6); |
9d0efc10 ND |
186 | } else if (matches(*argv, "dev") == 0) { |
187 | NEXT_ARG(); | |
7a14358b | 188 | link = ll_name_to_index(*argv); |
fe99adbc SP |
189 | if (!link) |
190 | exit(nodev(*argv)); | |
c4743c4d SP |
191 | } else if (strcmp(*argv, "ttl") == 0 || |
192 | strcmp(*argv, "hoplimit") == 0 || | |
9d0efc10 | 193 | strcmp(*argv, "hlim") == 0) { |
9d0efc10 | 194 | NEXT_ARG(); |
c4743c4d SP |
195 | if (strcmp(*argv, "inherit") != 0) { |
196 | if (get_u8(&hop_limit, *argv, 0)) | |
197 | invarg("invalid HLIM\n", *argv); | |
198 | } else | |
199 | hop_limit = 0; | |
73516e12 | 200 | } else if (strcmp(*argv, "encaplimit") == 0) { |
9d0efc10 ND |
201 | NEXT_ARG(); |
202 | if (strcmp(*argv, "none") == 0) { | |
203 | flags |= IP6_TNL_F_IGN_ENCAP_LIMIT; | |
204 | } else { | |
205 | __u8 uval; | |
56f5daac | 206 | |
9d0efc10 ND |
207 | if (get_u8(&uval, *argv, 0) < -1) |
208 | invarg("invalid ELIM", *argv); | |
209 | encap_limit = uval; | |
210 | flags &= ~IP6_TNL_F_IGN_ENCAP_LIMIT; | |
211 | } | |
5bd93795 SP |
212 | } else if (strcmp(*argv, "tos") == 0 || |
213 | strcmp(*argv, "tclass") == 0 || | |
9d0efc10 | 214 | strcmp(*argv, "tc") == 0 || |
9d0efc10 ND |
215 | matches(*argv, "dsfield") == 0) { |
216 | __u8 uval; | |
56f5daac | 217 | |
9d0efc10 ND |
218 | NEXT_ARG(); |
219 | flowinfo &= ~IP6_FLOWINFO_TCLASS; | |
220 | if (strcmp(*argv, "inherit") == 0) | |
221 | flags |= IP6_TNL_F_USE_ORIG_TCLASS; | |
222 | else { | |
223 | if (get_u8(&uval, *argv, 16)) | |
224 | invarg("invalid TClass", *argv); | |
225 | flowinfo |= htonl((__u32)uval << 20) & IP6_FLOWINFO_TCLASS; | |
226 | flags &= ~IP6_TNL_F_USE_ORIG_TCLASS; | |
227 | } | |
228 | } else if (strcmp(*argv, "flowlabel") == 0 || | |
229 | strcmp(*argv, "fl") == 0) { | |
230 | __u32 uval; | |
56f5daac | 231 | |
9d0efc10 ND |
232 | NEXT_ARG(); |
233 | flowinfo &= ~IP6_FLOWINFO_FLOWLABEL; | |
234 | if (strcmp(*argv, "inherit") == 0) | |
235 | flags |= IP6_TNL_F_USE_ORIG_FLOWLABEL; | |
236 | else { | |
237 | if (get_u32(&uval, *argv, 16)) | |
238 | invarg("invalid Flowlabel", *argv); | |
239 | if (uval > 0xFFFFF) | |
240 | invarg("invalid Flowlabel", *argv); | |
241 | flowinfo |= htonl(uval) & IP6_FLOWINFO_FLOWLABEL; | |
242 | flags &= ~IP6_TNL_F_USE_ORIG_FLOWLABEL; | |
243 | } | |
244 | } else if (strcmp(*argv, "dscp") == 0) { | |
245 | NEXT_ARG(); | |
246 | if (strcmp(*argv, "inherit") != 0) | |
247 | invarg("not inherit", *argv); | |
248 | flags |= IP6_TNL_F_RCV_DSCP_COPY; | |
249 | } else if (strcmp(*argv, "fwmark") == 0) { | |
250 | NEXT_ARG(); | |
ad4b1425 CG |
251 | if (strcmp(*argv, "inherit") == 0) { |
252 | flags |= IP6_TNL_F_USE_ORIG_FWMARK; | |
253 | fwmark = 0; | |
254 | } else { | |
255 | if (get_u32(&fwmark, *argv, 0)) | |
256 | invarg("invalid fwmark\n", *argv); | |
257 | flags &= ~IP6_TNL_F_USE_ORIG_FWMARK; | |
258 | } | |
21440d19 SL |
259 | } else if (strcmp(*argv, "allow-localremote") == 0) { |
260 | flags |= IP6_TNL_F_ALLOW_LOCAL_REMOTE; | |
261 | } else if (strcmp(*argv, "noallow-localremote") == 0) { | |
262 | flags &= ~IP6_TNL_F_ALLOW_LOCAL_REMOTE; | |
73516e12 TH |
263 | } else if (strcmp(*argv, "noencap") == 0) { |
264 | encaptype = TUNNEL_ENCAP_NONE; | |
265 | } else if (strcmp(*argv, "encap") == 0) { | |
266 | NEXT_ARG(); | |
267 | if (strcmp(*argv, "fou") == 0) | |
268 | encaptype = TUNNEL_ENCAP_FOU; | |
269 | else if (strcmp(*argv, "gue") == 0) | |
270 | encaptype = TUNNEL_ENCAP_GUE; | |
271 | else if (strcmp(*argv, "none") == 0) | |
272 | encaptype = TUNNEL_ENCAP_NONE; | |
273 | else | |
274 | invarg("Invalid encap type.", *argv); | |
275 | } else if (strcmp(*argv, "encap-sport") == 0) { | |
276 | NEXT_ARG(); | |
277 | if (strcmp(*argv, "auto") == 0) | |
278 | encapsport = 0; | |
279 | else if (get_u16(&encapsport, *argv, 0)) | |
280 | invarg("Invalid source port.", *argv); | |
281 | } else if (strcmp(*argv, "encap-dport") == 0) { | |
282 | NEXT_ARG(); | |
283 | if (get_u16(&encapdport, *argv, 0)) | |
284 | invarg("Invalid destination port.", *argv); | |
285 | } else if (strcmp(*argv, "encap-csum") == 0) { | |
286 | encapflags |= TUNNEL_ENCAP_FLAG_CSUM; | |
287 | } else if (strcmp(*argv, "noencap-csum") == 0) { | |
288 | encapflags &= ~TUNNEL_ENCAP_FLAG_CSUM; | |
289 | } else if (strcmp(*argv, "encap-udp6-csum") == 0) { | |
290 | encapflags |= TUNNEL_ENCAP_FLAG_CSUM6; | |
291 | } else if (strcmp(*argv, "noencap-udp6-csum") == 0) { | |
292 | encapflags &= ~TUNNEL_ENCAP_FLAG_CSUM6; | |
293 | } else if (strcmp(*argv, "encap-remcsum") == 0) { | |
294 | encapflags |= TUNNEL_ENCAP_FLAG_REMCSUM; | |
295 | } else if (strcmp(*argv, "noencap-remcsum") == 0) { | |
147ade01 | 296 | encapflags &= ~TUNNEL_ENCAP_FLAG_REMCSUM; |
4bfe6825 AS |
297 | } else if (strcmp(*argv, "external") == 0) { |
298 | metadata = 1; | |
06e3975f SP |
299 | } else { |
300 | ip6tunnel_print_help(lu, argc, argv, stderr); | |
301 | return -1; | |
302 | } | |
9d0efc10 ND |
303 | argc--, argv++; |
304 | } | |
305 | ||
306 | addattr8(n, 1024, IFLA_IPTUN_PROTO, proto); | |
4bfe6825 AS |
307 | if (metadata) { |
308 | addattr_l(n, 1024, IFLA_IPTUN_COLLECT_METADATA, NULL, 0); | |
309 | return 0; | |
310 | } | |
5bd93795 | 311 | |
fa1e658e | 312 | if (is_addrtype_inet_not_unspec(&saddr)) { |
7bda9fd3 SP |
313 | addattr_l(n, 1024, IFLA_IPTUN_LOCAL, |
314 | saddr.data, saddr.bytelen); | |
315 | } | |
fa1e658e | 316 | if (is_addrtype_inet_not_unspec(&daddr)) { |
7bda9fd3 SP |
317 | addattr_l(n, 1024, IFLA_IPTUN_REMOTE, |
318 | daddr.data, daddr.bytelen); | |
319 | } | |
9d0efc10 ND |
320 | addattr8(n, 1024, IFLA_IPTUN_TTL, hop_limit); |
321 | addattr8(n, 1024, IFLA_IPTUN_ENCAP_LIMIT, encap_limit); | |
322 | addattr32(n, 1024, IFLA_IPTUN_FLOWINFO, flowinfo); | |
323 | addattr32(n, 1024, IFLA_IPTUN_FLAGS, flags); | |
324 | addattr32(n, 1024, IFLA_IPTUN_LINK, link); | |
ad4b1425 | 325 | addattr32(n, 1024, IFLA_IPTUN_FWMARK, fwmark); |
9d0efc10 | 326 | |
73516e12 TH |
327 | addattr16(n, 1024, IFLA_IPTUN_ENCAP_TYPE, encaptype); |
328 | addattr16(n, 1024, IFLA_IPTUN_ENCAP_FLAGS, encapflags); | |
329 | addattr16(n, 1024, IFLA_IPTUN_ENCAP_SPORT, htons(encapsport)); | |
330 | addattr16(n, 1024, IFLA_IPTUN_ENCAP_DPORT, htons(encapdport)); | |
331 | ||
9d0efc10 ND |
332 | return 0; |
333 | } | |
334 | ||
335 | static void ip6tunnel_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) | |
336 | { | |
9d0efc10 | 337 | char s2[64]; |
5bd93795 | 338 | __u32 flags = 0; |
9d0efc10 | 339 | __u32 flowinfo = 0; |
375560c4 | 340 | __u8 ttl = 0; |
9d0efc10 ND |
341 | |
342 | if (!tb) | |
343 | return; | |
344 | ||
00ff4b8e | 345 | if (tb[IFLA_IPTUN_COLLECT_METADATA]) { |
d6abae5a | 346 | print_bool(PRINT_ANY, "external", "external ", true); |
00ff4b8e SP |
347 | return; |
348 | } | |
7b178324 | 349 | |
9d0efc10 ND |
350 | if (tb[IFLA_IPTUN_FLAGS]) |
351 | flags = rta_getattr_u32(tb[IFLA_IPTUN_FLAGS]); | |
352 | ||
353 | if (tb[IFLA_IPTUN_FLOWINFO]) | |
354 | flowinfo = rta_getattr_u32(tb[IFLA_IPTUN_FLOWINFO]); | |
355 | ||
356 | if (tb[IFLA_IPTUN_PROTO]) { | |
357 | switch (rta_getattr_u8(tb[IFLA_IPTUN_PROTO])) { | |
358 | case IPPROTO_IPIP: | |
1facc1c6 | 359 | print_string(PRINT_ANY, "proto", "%s ", "ipip6"); |
9d0efc10 ND |
360 | break; |
361 | case IPPROTO_IPV6: | |
1facc1c6 | 362 | print_string(PRINT_ANY, "proto", "%s ", "ip6ip6"); |
9d0efc10 ND |
363 | break; |
364 | case 0: | |
1facc1c6 | 365 | print_string(PRINT_ANY, "proto", "%s ", "any"); |
9d0efc10 ND |
366 | break; |
367 | } | |
368 | } | |
369 | ||
b761fc41 SP |
370 | tnl_print_endpoint("remote", tb[IFLA_IPTUN_REMOTE], AF_INET6); |
371 | tnl_print_endpoint("local", tb[IFLA_IPTUN_LOCAL], AF_INET6); | |
9d0efc10 | 372 | |
45d3a6ef | 373 | if (tb[IFLA_IPTUN_LINK]) { |
5bd93795 | 374 | __u32 link = rta_getattr_u32(tb[IFLA_IPTUN_LINK]); |
9d0efc10 | 375 | |
45d3a6ef SP |
376 | if (link) { |
377 | print_string(PRINT_ANY, "link", "dev %s ", | |
378 | ll_index_to_name(link)); | |
379 | } | |
9d0efc10 ND |
380 | } |
381 | ||
375560c4 SP |
382 | if (tb[IFLA_IPTUN_TTL]) |
383 | ttl = rta_getattr_u8(tb[IFLA_IPTUN_TTL]); | |
384 | if (is_json_context() || ttl) | |
385 | print_uint(PRINT_ANY, "ttl", "hoplimit %u ", ttl); | |
386 | else | |
387 | print_string(PRINT_FP, NULL, "hoplimit %s ", "inherit"); | |
cc899123 | 388 | |
e3945d92 | 389 | if (flags & IP6_TNL_F_IGN_ENCAP_LIMIT) { |
1facc1c6 JF |
390 | print_bool(PRINT_ANY, |
391 | "ip6_tnl_f_ign_encap_limit", | |
392 | "encaplimit none ", | |
393 | true); | |
e3945d92 SP |
394 | } else if (tb[IFLA_IPTUN_ENCAP_LIMIT]) { |
395 | __u8 val = rta_getattr_u8(tb[IFLA_IPTUN_ENCAP_LIMIT]); | |
396 | ||
397 | print_uint(PRINT_ANY, "encap_limit", "encaplimit %u ", val); | |
398 | } | |
9d0efc10 | 399 | |
090524f8 | 400 | if (flags & IP6_TNL_F_USE_ORIG_TCLASS) { |
1facc1c6 JF |
401 | print_bool(PRINT_ANY, |
402 | "ip6_tnl_f_use_orig_tclass", | |
403 | "tclass inherit ", | |
404 | true); | |
090524f8 SP |
405 | } else if (tb[IFLA_IPTUN_FLOWINFO]) { |
406 | __u32 val = ntohl(flowinfo & IP6_FLOWINFO_TCLASS) >> 20; | |
9d0efc10 | 407 | |
090524f8 SP |
408 | snprintf(s2, sizeof(s2), "0x%02x", val); |
409 | print_string(PRINT_ANY, "tclass", "tclass %s ", s2); | |
1facc1c6 JF |
410 | } |
411 | ||
412 | if (flags & IP6_TNL_F_USE_ORIG_FLOWLABEL) { | |
413 | print_bool(PRINT_ANY, | |
414 | "ip6_tnl_f_use_orig_flowlabel", | |
415 | "flowlabel inherit ", | |
416 | true); | |
a0fd0c3a SP |
417 | } else if (tb[IFLA_IPTUN_FLOWINFO]) { |
418 | __u32 val = ntohl(flowinfo & IP6_FLOWINFO_FLOWLABEL); | |
1facc1c6 | 419 | |
a0fd0c3a SP |
420 | snprintf(s2, sizeof(s2), "0x%05x", val); |
421 | print_string(PRINT_ANY, "flowlabel", "flowlabel %s ", s2); | |
9d0efc10 ND |
422 | } |
423 | ||
9d0efc10 | 424 | if (flags & IP6_TNL_F_RCV_DSCP_COPY) |
1facc1c6 JF |
425 | print_bool(PRINT_ANY, |
426 | "ip6_tnl_f_rcv_dscp_copy", | |
427 | "dscp inherit ", | |
428 | true); | |
9d0efc10 ND |
429 | |
430 | if (flags & IP6_TNL_F_MIP6_DEV) | |
1facc1c6 JF |
431 | print_bool(PRINT_ANY, "ip6_tnl_f_mip6_dev", "mip6 ", true); |
432 | ||
e97ad3d2 SP |
433 | if (flags & IP6_TNL_F_ALLOW_LOCAL_REMOTE) |
434 | print_bool(PRINT_ANY, | |
435 | "ip6_tnl_f_allow_local_remote", | |
436 | "allow-localremote ", | |
437 | true); | |
438 | ||
1facc1c6 JF |
439 | if (flags & IP6_TNL_F_USE_ORIG_FWMARK) { |
440 | print_bool(PRINT_ANY, | |
441 | "ip6_tnl_f_use_orig_fwmark", | |
442 | "fwmark inherit ", | |
443 | true); | |
444 | } else if (tb[IFLA_IPTUN_FWMARK]) { | |
445 | __u32 fwmark = rta_getattr_u32(tb[IFLA_IPTUN_FWMARK]); | |
9d0efc10 | 446 | |
1facc1c6 | 447 | if (fwmark) { |
e97ad3d2 | 448 | print_0xhex(PRINT_ANY, |
90c5c969 | 449 | "fwmark", "fwmark %#llx ", fwmark); |
1facc1c6 JF |
450 | } |
451 | } | |
73516e12 | 452 | |
bad76e6b SP |
453 | tnl_print_encap(tb, |
454 | IFLA_IPTUN_ENCAP_TYPE, | |
455 | IFLA_IPTUN_ENCAP_FLAGS, | |
456 | IFLA_IPTUN_ENCAP_SPORT, | |
457 | IFLA_IPTUN_ENCAP_DPORT); | |
9d0efc10 ND |
458 | } |
459 | ||
460 | struct link_util ip6tnl_link_util = { | |
461 | .id = "ip6tnl", | |
462 | .maxattr = IFLA_IPTUN_MAX, | |
463 | .parse_opt = ip6tunnel_parse_opt, | |
464 | .print_opt = ip6tunnel_print_opt, | |
561e650e | 465 | .print_help = ip6tunnel_print_help, |
9d0efc10 | 466 | }; |