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7951dea2 SS |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
855ee1a1 | 6 | Copyright 2014 Susant Sahani |
7951dea2 SS |
7 | |
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
7951dea2 SS |
22 | #include <arpa/inet.h> |
23 | #include <net/if.h> | |
24 | #include <linux/ip.h> | |
25 | #include <linux/if_tunnel.h> | |
855ee1a1 | 26 | #include <linux/ip6_tunnel.h> |
7951dea2 | 27 | |
1c4baffc | 28 | #include "sd-netlink.h" |
07630cea LP |
29 | |
30 | #include "conf-parser.h" | |
31 | #include "missing.h" | |
0b1831c2 | 32 | #include "networkd-link.h" |
07630cea | 33 | #include "string-util.h" |
7951dea2 | 34 | #include "util.h" |
07630cea | 35 | #include "networkd-netdev-tunnel.h" |
7951dea2 | 36 | |
855ee1a1 | 37 | #define DEFAULT_TNL_HOP_LIMIT 64 |
407af9dd | 38 | #define IP6_FLOWINFO_FLOWLABEL htonl(0x000FFFFF) |
855ee1a1 SS |
39 | |
40 | static const char* const ip6tnl_mode_table[_NETDEV_IP6_TNL_MODE_MAX] = { | |
41 | [NETDEV_IP6_TNL_MODE_IP6IP6] = "ip6ip6", | |
73b23bea | 42 | [NETDEV_IP6_TNL_MODE_IPIP6] = "ipip6", |
855ee1a1 SS |
43 | [NETDEV_IP6_TNL_MODE_ANYIP6] = "any", |
44 | }; | |
45 | ||
46 | DEFINE_STRING_TABLE_LOOKUP(ip6tnl_mode, Ip6TnlMode); | |
47 | DEFINE_CONFIG_PARSE_ENUM(config_parse_ip6tnl_mode, ip6tnl_mode, Ip6TnlMode, "Failed to parse ip6 tunnel Mode"); | |
48 | ||
1c4baffc | 49 | static int netdev_ipip_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) { |
aa9f1140 | 50 | Tunnel *t = IPIP(netdev); |
7951dea2 SS |
51 | int r; |
52 | ||
3be1d7e0 | 53 | assert(netdev); |
7951dea2 | 54 | assert(link); |
7951dea2 | 55 | assert(m); |
aa9f1140 TG |
56 | assert(t); |
57 | assert(t->family == AF_INET); | |
7951dea2 | 58 | |
1c4baffc | 59 | r = sd_netlink_message_append_u32(m, IFLA_IPTUN_LINK, link->ifindex); |
5289f3ff SS |
60 | if (r < 0) |
61 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LINK attribute: %m"); | |
7951dea2 | 62 | |
1c4baffc | 63 | r = sd_netlink_message_append_in_addr(m, IFLA_IPTUN_LOCAL, &t->local.in); |
5289f3ff SS |
64 | if (r < 0) |
65 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LOCAL attribute: %m"); | |
7951dea2 | 66 | |
1c4baffc | 67 | r = sd_netlink_message_append_in_addr(m, IFLA_IPTUN_REMOTE, &t->remote.in); |
5289f3ff SS |
68 | if (r < 0) |
69 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_REMOTE attribute: %m"); | |
7951dea2 | 70 | |
1c4baffc | 71 | r = sd_netlink_message_append_u8(m, IFLA_IPTUN_TTL, t->ttl); |
5289f3ff SS |
72 | if (r < 0) |
73 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_TTL attribute: %m"); | |
9ae70211 | 74 | |
1c4baffc | 75 | r = sd_netlink_message_append_u8(m, IFLA_IPTUN_PMTUDISC, t->pmtudisc); |
5289f3ff SS |
76 | if (r < 0) |
77 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_PMTUDISC attribute: %m"); | |
9243e967 | 78 | |
7951dea2 SS |
79 | return r; |
80 | } | |
81 | ||
1c4baffc | 82 | static int netdev_sit_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) { |
aa9f1140 | 83 | Tunnel *t = SIT(netdev); |
abf446af SS |
84 | int r; |
85 | ||
3be1d7e0 | 86 | assert(netdev); |
abf446af | 87 | assert(link); |
abf446af | 88 | assert(m); |
aa9f1140 TG |
89 | assert(t); |
90 | assert(t->family == AF_INET); | |
abf446af | 91 | |
1c4baffc | 92 | r = sd_netlink_message_append_u32(m, IFLA_IPTUN_LINK, link->ifindex); |
5289f3ff SS |
93 | if (r < 0) |
94 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LINK attribute: %m"); | |
abf446af | 95 | |
1c4baffc | 96 | r = sd_netlink_message_append_in_addr(m, IFLA_IPTUN_LOCAL, &t->local.in); |
5289f3ff SS |
97 | if (r < 0) |
98 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LOCAL attribute: %m"); | |
abf446af | 99 | |
1c4baffc | 100 | r = sd_netlink_message_append_in_addr(m, IFLA_IPTUN_REMOTE, &t->remote.in); |
5289f3ff SS |
101 | if (r < 0) |
102 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_REMOTE attribute: %m"); | |
abf446af | 103 | |
1c4baffc | 104 | r = sd_netlink_message_append_u8(m, IFLA_IPTUN_TTL, t->ttl); |
5289f3ff SS |
105 | if (r < 0) |
106 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_TTL attribute: %m"); | |
a9f434cf | 107 | |
1c4baffc | 108 | r = sd_netlink_message_append_u8(m, IFLA_IPTUN_PMTUDISC, t->pmtudisc); |
5289f3ff SS |
109 | if (r < 0) |
110 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_PMTUDISC attribute: %m"); | |
436b910f | 111 | |
abf446af SS |
112 | return r; |
113 | } | |
114 | ||
1c4baffc | 115 | static int netdev_gre_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) { |
1af2536a | 116 | Tunnel *t; |
8bb088c5 SS |
117 | int r; |
118 | ||
3be1d7e0 | 119 | assert(netdev); |
1af2536a SS |
120 | |
121 | if (netdev->kind == NETDEV_KIND_GRE) | |
5289f3ff | 122 | t = GRE(netdev); |
1af2536a | 123 | else |
5289f3ff | 124 | t = GRETAP(netdev); |
1af2536a | 125 | |
aa9f1140 TG |
126 | assert(t); |
127 | assert(t->family == AF_INET); | |
1af2536a SS |
128 | assert(link); |
129 | assert(m); | |
8bb088c5 | 130 | |
1c4baffc | 131 | r = sd_netlink_message_append_u32(m, IFLA_GRE_LINK, link->ifindex); |
5289f3ff SS |
132 | if (r < 0) |
133 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_LINK attribute: %m"); | |
8bb088c5 | 134 | |
1c4baffc | 135 | r = sd_netlink_message_append_in_addr(m, IFLA_GRE_LOCAL, &t->local.in); |
5289f3ff SS |
136 | if (r < 0) |
137 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_LOCAL attribute: %m"); | |
8bb088c5 | 138 | |
1c4baffc | 139 | r = sd_netlink_message_append_in_addr(m, IFLA_GRE_REMOTE, &t->remote.in); |
5289f3ff SS |
140 | if (r < 0) |
141 | log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_REMOTE attribute: %m"); | |
8bb088c5 | 142 | |
1c4baffc | 143 | r = sd_netlink_message_append_u8(m, IFLA_GRE_TTL, t->ttl); |
5289f3ff SS |
144 | if (r < 0) |
145 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_TTL attribute: %m"); | |
8bb088c5 | 146 | |
1c4baffc | 147 | r = sd_netlink_message_append_u8(m, IFLA_GRE_TOS, t->tos); |
5289f3ff SS |
148 | if (r < 0) |
149 | log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_TOS attribute: %m"); | |
8bb088c5 | 150 | |
1c4baffc | 151 | r = sd_netlink_message_append_u8(m, IFLA_GRE_PMTUDISC, t->pmtudisc); |
5289f3ff SS |
152 | if (r < 0) |
153 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_PMTUDISC attribute: %m"); | |
9243e967 | 154 | |
8bb088c5 SS |
155 | return r; |
156 | } | |
157 | ||
1c4baffc | 158 | static int netdev_ip6gre_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) { |
b16492f8 SS |
159 | Tunnel *t; |
160 | int r; | |
161 | ||
162 | assert(netdev); | |
163 | ||
164 | if (netdev->kind == NETDEV_KIND_IP6GRE) | |
5289f3ff | 165 | t = IP6GRE(netdev); |
b16492f8 | 166 | else |
5289f3ff | 167 | t = IP6GRETAP(netdev); |
b16492f8 SS |
168 | |
169 | assert(t); | |
170 | assert(t->family == AF_INET6); | |
171 | assert(link); | |
172 | assert(m); | |
173 | ||
1c4baffc | 174 | r = sd_netlink_message_append_u32(m, IFLA_GRE_LINK, link->ifindex); |
5289f3ff SS |
175 | if (r < 0) |
176 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_LINK attribute: %m"); | |
b16492f8 | 177 | |
1c4baffc | 178 | r = sd_netlink_message_append_in6_addr(m, IFLA_GRE_LOCAL, &t->local.in6); |
5289f3ff SS |
179 | if (r < 0) |
180 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_LOCAL attribute: %m"); | |
b16492f8 | 181 | |
1c4baffc | 182 | r = sd_netlink_message_append_in6_addr(m, IFLA_GRE_REMOTE, &t->remote.in6); |
5289f3ff SS |
183 | if (r < 0) |
184 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_REMOTE attribute: %m"); | |
b16492f8 | 185 | |
1c4baffc | 186 | r = sd_netlink_message_append_u8(m, IFLA_GRE_TTL, t->ttl); |
5289f3ff SS |
187 | if (r < 0) |
188 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_TTL attribute: %m"); | |
b16492f8 | 189 | |
54a9d20c SS |
190 | if (t->ipv6_flowlabel != _NETDEV_IPV6_FLOWLABEL_INVALID) { |
191 | r = sd_netlink_message_append_u32(m, IFLA_GRE_FLOWINFO, t->ipv6_flowlabel); | |
192 | if (r < 0) | |
193 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_FLOWINFO attribute: %m"); | |
194 | } | |
195 | ||
196 | r = sd_netlink_message_append_u32(m, IFLA_GRE_FLAGS, t->flags); | |
197 | if (r < 0) | |
198 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_FLAGS attribute: %m"); | |
199 | ||
b16492f8 SS |
200 | return r; |
201 | } | |
202 | ||
1c4baffc | 203 | static int netdev_vti_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) { |
aa9f1140 | 204 | Tunnel *t = VTI(netdev); |
a613382b SS |
205 | int r; |
206 | ||
3be1d7e0 | 207 | assert(netdev); |
a613382b | 208 | assert(link); |
a613382b | 209 | assert(m); |
aa9f1140 TG |
210 | assert(t); |
211 | assert(t->family == AF_INET); | |
a613382b | 212 | |
1c4baffc | 213 | r = sd_netlink_message_append_u32(m, IFLA_VTI_LINK, link->ifindex); |
5289f3ff SS |
214 | if (r < 0) |
215 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LINK attribute: %m"); | |
a613382b | 216 | |
1c4baffc | 217 | r = sd_netlink_message_append_in_addr(m, IFLA_VTI_LOCAL, &t->local.in); |
5289f3ff SS |
218 | if (r < 0) |
219 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LOCAL attribute: %m"); | |
a613382b | 220 | |
1c4baffc | 221 | r = sd_netlink_message_append_in_addr(m, IFLA_VTI_REMOTE, &t->remote.in); |
5289f3ff SS |
222 | if (r < 0) |
223 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_REMOTE attribute: %m"); | |
a613382b | 224 | |
a613382b SS |
225 | return r; |
226 | } | |
8bb088c5 | 227 | |
1c4baffc | 228 | static int netdev_vti6_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) { |
9011ce77 SS |
229 | Tunnel *t = VTI6(netdev); |
230 | int r; | |
231 | ||
232 | assert(netdev); | |
233 | assert(link); | |
234 | assert(m); | |
235 | assert(t); | |
236 | assert(t->family == AF_INET6); | |
237 | ||
1c4baffc | 238 | r = sd_netlink_message_append_u32(m, IFLA_VTI_LINK, link->ifindex); |
9011ce77 SS |
239 | if (r < 0) |
240 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LINK attribute: %m"); | |
241 | ||
1c4baffc | 242 | r = sd_netlink_message_append_in6_addr(m, IFLA_VTI_LOCAL, &t->local.in6); |
9011ce77 SS |
243 | if (r < 0) |
244 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LOCAL attribute: %m"); | |
245 | ||
1c4baffc | 246 | r = sd_netlink_message_append_in6_addr(m, IFLA_VTI_REMOTE, &t->remote.in6); |
9011ce77 SS |
247 | if (r < 0) |
248 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_REMOTE attribute: %m"); | |
249 | ||
250 | return r; | |
251 | } | |
252 | ||
1c4baffc | 253 | static int netdev_ip6tnl_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) { |
855ee1a1 SS |
254 | Tunnel *t = IP6TNL(netdev); |
255 | uint8_t proto; | |
256 | int r; | |
257 | ||
258 | assert(netdev); | |
259 | assert(link); | |
260 | assert(m); | |
261 | assert(t); | |
262 | assert(t->family == AF_INET6); | |
263 | ||
1c4baffc | 264 | r = sd_netlink_message_append_u32(m, IFLA_IPTUN_LINK, link->ifindex); |
5289f3ff SS |
265 | if (r < 0) |
266 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LINK attribute: %m"); | |
855ee1a1 | 267 | |
1c4baffc | 268 | r = sd_netlink_message_append_in6_addr(m, IFLA_IPTUN_LOCAL, &t->local.in6); |
5289f3ff SS |
269 | if (r < 0) |
270 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LOCAL attribute: %m"); | |
855ee1a1 | 271 | |
1c4baffc | 272 | r = sd_netlink_message_append_in6_addr(m, IFLA_IPTUN_REMOTE, &t->remote.in6); |
5289f3ff SS |
273 | if (r < 0) |
274 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_REMOTE attribute: %m"); | |
855ee1a1 | 275 | |
1c4baffc | 276 | r = sd_netlink_message_append_u8(m, IFLA_IPTUN_TTL, t->ttl); |
5289f3ff SS |
277 | if (r < 0) |
278 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_TTL attribute: %m"); | |
855ee1a1 | 279 | |
407af9dd SS |
280 | if (t->ipv6_flowlabel != _NETDEV_IPV6_FLOWLABEL_INVALID) { |
281 | r = sd_netlink_message_append_u32(m, IFLA_IPTUN_FLOWINFO, t->ipv6_flowlabel); | |
282 | if (r < 0) | |
283 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_FLOWINFO attribute: %m"); | |
284 | } | |
285 | ||
a9b70f9d | 286 | if (t->copy_dscp) |
ec2a3e3a SS |
287 | t->flags |= IP6_TNL_F_RCV_DSCP_COPY; |
288 | ||
b4828886 SS |
289 | if (t->encap_limit != IPV6_DEFAULT_TNL_ENCAP_LIMIT) { |
290 | r = sd_netlink_message_append_u8(m, IFLA_IPTUN_ENCAP_LIMIT, t->encap_limit); | |
291 | if (r < 0) | |
292 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_ENCAP_LIMIT attribute: %m"); | |
293 | } | |
294 | ||
407af9dd SS |
295 | r = sd_netlink_message_append_u32(m, IFLA_IPTUN_FLAGS, t->flags); |
296 | if (r < 0) | |
297 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_FLAGS attribute: %m"); | |
298 | ||
855ee1a1 SS |
299 | switch (t->ip6tnl_mode) { |
300 | case NETDEV_IP6_TNL_MODE_IP6IP6: | |
301 | proto = IPPROTO_IPV6; | |
302 | break; | |
303 | case NETDEV_IP6_TNL_MODE_IPIP6: | |
304 | proto = IPPROTO_IPIP; | |
305 | break; | |
306 | case NETDEV_IP6_TNL_MODE_ANYIP6: | |
307 | default: | |
308 | proto = 0; | |
309 | break; | |
310 | } | |
311 | ||
1c4baffc | 312 | r = sd_netlink_message_append_u8(m, IFLA_IPTUN_PROTO, proto); |
5289f3ff SS |
313 | if (r < 0) |
314 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_MODE attribute: %m"); | |
855ee1a1 SS |
315 | |
316 | return r; | |
317 | } | |
318 | ||
3be1d7e0 | 319 | static int netdev_tunnel_verify(NetDev *netdev, const char *filename) { |
aa9f1140 TG |
320 | Tunnel *t = NULL; |
321 | ||
7951dea2 | 322 | assert(netdev); |
3be1d7e0 | 323 | assert(filename); |
7951dea2 | 324 | |
aa9f1140 TG |
325 | switch (netdev->kind) { |
326 | case NETDEV_KIND_IPIP: | |
327 | t = IPIP(netdev); | |
328 | break; | |
329 | case NETDEV_KIND_SIT: | |
330 | t = SIT(netdev); | |
331 | break; | |
332 | case NETDEV_KIND_GRE: | |
333 | t = GRE(netdev); | |
334 | break; | |
1af2536a SS |
335 | case NETDEV_KIND_GRETAP: |
336 | t = GRETAP(netdev); | |
337 | break; | |
b16492f8 SS |
338 | case NETDEV_KIND_IP6GRE: |
339 | t = IP6GRE(netdev); | |
340 | break; | |
341 | case NETDEV_KIND_IP6GRETAP: | |
342 | t = IP6GRETAP(netdev); | |
343 | break; | |
aa9f1140 TG |
344 | case NETDEV_KIND_VTI: |
345 | t = VTI(netdev); | |
346 | break; | |
9011ce77 SS |
347 | case NETDEV_KIND_VTI6: |
348 | t = VTI6(netdev); | |
349 | break; | |
855ee1a1 SS |
350 | case NETDEV_KIND_IP6TNL: |
351 | t = IP6TNL(netdev); | |
352 | break; | |
aa9f1140 TG |
353 | default: |
354 | assert_not_reached("Invalid tunnel kind"); | |
355 | } | |
356 | ||
357 | assert(t); | |
358 | ||
aa9f1140 | 359 | if (t->remote.in.s_addr == INADDR_ANY) { |
5289f3ff SS |
360 | log_warning("Tunnel without remote address configured in %s. Ignoring", filename); |
361 | return -EINVAL; | |
7951dea2 SS |
362 | } |
363 | ||
855ee1a1 | 364 | if (t->family != AF_INET && t->family != AF_INET6) { |
5289f3ff SS |
365 | log_warning("Tunnel with invalid address family configured in %s. Ignoring", filename); |
366 | return -EINVAL; | |
7951dea2 SS |
367 | } |
368 | ||
855ee1a1 SS |
369 | if (netdev->kind == NETDEV_KIND_IP6TNL) { |
370 | if (t->ip6tnl_mode == _NETDEV_IP6_TNL_MODE_INVALID) { | |
371 | log_warning("IP6 Tunnel without mode configured in %s. Ignoring", filename); | |
372 | return -EINVAL; | |
373 | } | |
374 | } | |
375 | ||
7951dea2 SS |
376 | return 0; |
377 | } | |
6ef892fc TG |
378 | |
379 | int config_parse_tunnel_address(const char *unit, | |
380 | const char *filename, | |
381 | unsigned line, | |
382 | const char *section, | |
383 | unsigned section_line, | |
384 | const char *lvalue, | |
385 | int ltype, | |
386 | const char *rvalue, | |
387 | void *data, | |
388 | void *userdata) { | |
aa9f1140 | 389 | Tunnel *t = userdata; |
44e7b949 LP |
390 | union in_addr_union *addr = data, buffer; |
391 | int r, f; | |
6ef892fc TG |
392 | |
393 | assert(filename); | |
394 | assert(lvalue); | |
395 | assert(rvalue); | |
396 | assert(data); | |
397 | ||
44e7b949 | 398 | r = in_addr_from_string_auto(rvalue, &f, &buffer); |
6ef892fc | 399 | if (r < 0) { |
12ca818f | 400 | log_syntax(unit, LOG_ERR, filename, line, r, "Tunnel address is invalid, ignoring assignment: %s", rvalue); |
6ef892fc TG |
401 | return 0; |
402 | } | |
403 | ||
44e7b949 | 404 | if (t->family != AF_UNSPEC && t->family != f) { |
12ca818f | 405 | log_syntax(unit, LOG_ERR, filename, line, 0, "Tunnel addresses incompatible, ignoring assignment: %s", rvalue); |
44e7b949 LP |
406 | return 0; |
407 | } | |
408 | ||
409 | t->family = f; | |
410 | *addr = buffer; | |
411 | ||
6ef892fc TG |
412 | return 0; |
413 | } | |
3be1d7e0 | 414 | |
407af9dd SS |
415 | int config_parse_ipv6_flowlabel(const char* unit, |
416 | const char *filename, | |
417 | unsigned line, | |
418 | const char *section, | |
419 | unsigned section_line, | |
420 | const char *lvalue, | |
421 | int ltype, | |
422 | const char *rvalue, | |
423 | void *data, | |
424 | void *userdata) { | |
425 | IPv6FlowLabel *ipv6_flowlabel = data; | |
426 | Tunnel *t = userdata; | |
407af9dd SS |
427 | int k = 0; |
428 | int r; | |
429 | ||
430 | assert(filename); | |
431 | assert(lvalue); | |
432 | assert(rvalue); | |
433 | assert(ipv6_flowlabel); | |
434 | ||
6870b415 | 435 | if (streq(rvalue, "inherit")) { |
407af9dd SS |
436 | *ipv6_flowlabel = IP6_FLOWINFO_FLOWLABEL; |
437 | t->flags |= IP6_TNL_F_USE_ORIG_FLOWLABEL; | |
438 | } else { | |
6870b415 | 439 | r = config_parse_int(unit, filename, line, section, section_line, lvalue, ltype, rvalue, &k, userdata); |
12ca818f LP |
440 | if (r < 0) |
441 | return r; | |
442 | ||
443 | if (k > 0xFFFFF) | |
444 | log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse IPv6 flowlabel option, ignoring: %s", rvalue); | |
445 | else { | |
446 | *ipv6_flowlabel = htonl(k) & IP6_FLOWINFO_FLOWLABEL; | |
447 | t->flags &= ~IP6_TNL_F_USE_ORIG_FLOWLABEL; | |
407af9dd SS |
448 | } |
449 | } | |
450 | ||
451 | return 0; | |
452 | } | |
453 | ||
b4828886 SS |
454 | int config_parse_encap_limit(const char* unit, |
455 | const char *filename, | |
456 | unsigned line, | |
457 | const char *section, | |
458 | unsigned section_line, | |
459 | const char *lvalue, | |
460 | int ltype, | |
461 | const char *rvalue, | |
462 | void *data, | |
463 | void *userdata) { | |
464 | Tunnel *t = userdata; | |
465 | int k = 0; | |
466 | int r; | |
467 | ||
468 | assert(filename); | |
469 | assert(lvalue); | |
470 | assert(rvalue); | |
471 | ||
472 | if (streq(rvalue, "none")) | |
473 | t->flags |= IP6_TNL_F_IGN_ENCAP_LIMIT; | |
474 | else { | |
475 | r = safe_atoi(rvalue, &k); | |
476 | if (r < 0) { | |
12ca818f | 477 | log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse Tunnel Encapsulation Limit option, ignoring: %s", rvalue); |
b4828886 SS |
478 | return 0; |
479 | } | |
480 | ||
481 | if (k > 255 || k < 0) | |
12ca818f | 482 | log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid Tunnel Encapsulation value, ignoring: %d", k); |
b4828886 SS |
483 | else { |
484 | t->encap_limit = k; | |
485 | t->flags &= ~IP6_TNL_F_IGN_ENCAP_LIMIT; | |
486 | } | |
487 | } | |
488 | ||
489 | return 0; | |
490 | } | |
491 | ||
aa9f1140 TG |
492 | static void ipip_init(NetDev *n) { |
493 | Tunnel *t = IPIP(n); | |
494 | ||
495 | assert(n); | |
496 | assert(t); | |
497 | ||
498 | t->pmtudisc = true; | |
499 | } | |
500 | ||
501 | static void sit_init(NetDev *n) { | |
502 | Tunnel *t = SIT(n); | |
503 | ||
504 | assert(n); | |
505 | assert(t); | |
506 | ||
507 | t->pmtudisc = true; | |
508 | } | |
509 | ||
510 | static void vti_init(NetDev *n) { | |
7185d805 | 511 | Tunnel *t; |
aa9f1140 TG |
512 | |
513 | assert(n); | |
9011ce77 SS |
514 | |
515 | if (n->kind == NETDEV_KIND_VTI) | |
7185d805 | 516 | t = VTI(n); |
9011ce77 SS |
517 | else |
518 | t = VTI6(n); | |
519 | ||
aa9f1140 TG |
520 | assert(t); |
521 | ||
522 | t->pmtudisc = true; | |
523 | } | |
524 | ||
525 | static void gre_init(NetDev *n) { | |
1af2536a | 526 | Tunnel *t; |
aa9f1140 TG |
527 | |
528 | assert(n); | |
1af2536a SS |
529 | |
530 | if (n->kind == NETDEV_KIND_GRE) | |
531 | t = GRE(n); | |
532 | else | |
533 | t = GRETAP(n); | |
534 | ||
aa9f1140 TG |
535 | assert(t); |
536 | ||
537 | t->pmtudisc = true; | |
538 | } | |
539 | ||
b16492f8 SS |
540 | static void ip6gre_init(NetDev *n) { |
541 | Tunnel *t; | |
542 | ||
543 | assert(n); | |
544 | ||
545 | if (n->kind == NETDEV_KIND_IP6GRE) | |
546 | t = IP6GRE(n); | |
547 | else | |
548 | t = IP6GRETAP(n); | |
549 | ||
550 | assert(t); | |
551 | ||
552 | t->ttl = DEFAULT_TNL_HOP_LIMIT; | |
553 | } | |
554 | ||
855ee1a1 SS |
555 | static void ip6tnl_init(NetDev *n) { |
556 | Tunnel *t = IP6TNL(n); | |
557 | ||
558 | assert(n); | |
559 | assert(t); | |
560 | ||
561 | t->ttl = DEFAULT_TNL_HOP_LIMIT; | |
562 | t->encap_limit = IPV6_DEFAULT_TNL_ENCAP_LIMIT; | |
563 | t->ip6tnl_mode = _NETDEV_IP6_TNL_MODE_INVALID; | |
407af9dd | 564 | t->ipv6_flowlabel = _NETDEV_IPV6_FLOWLABEL_INVALID; |
855ee1a1 SS |
565 | } |
566 | ||
3be1d7e0 | 567 | const NetDevVTable ipip_vtable = { |
aa9f1140 TG |
568 | .object_size = sizeof(Tunnel), |
569 | .init = ipip_init, | |
570 | .sections = "Match\0NetDev\0Tunnel\0", | |
571 | .fill_message_create = netdev_ipip_fill_message_create, | |
572 | .create_type = NETDEV_CREATE_STACKED, | |
3be1d7e0 TG |
573 | .config_verify = netdev_tunnel_verify, |
574 | }; | |
575 | ||
576 | const NetDevVTable sit_vtable = { | |
aa9f1140 TG |
577 | .object_size = sizeof(Tunnel), |
578 | .init = sit_init, | |
579 | .sections = "Match\0NetDev\0Tunnel\0", | |
580 | .fill_message_create = netdev_sit_fill_message_create, | |
581 | .create_type = NETDEV_CREATE_STACKED, | |
3be1d7e0 TG |
582 | .config_verify = netdev_tunnel_verify, |
583 | }; | |
584 | ||
585 | const NetDevVTable vti_vtable = { | |
aa9f1140 TG |
586 | .object_size = sizeof(Tunnel), |
587 | .init = vti_init, | |
588 | .sections = "Match\0NetDev\0Tunnel\0", | |
589 | .fill_message_create = netdev_vti_fill_message_create, | |
590 | .create_type = NETDEV_CREATE_STACKED, | |
3be1d7e0 TG |
591 | .config_verify = netdev_tunnel_verify, |
592 | }; | |
593 | ||
9011ce77 SS |
594 | const NetDevVTable vti6_vtable = { |
595 | .object_size = sizeof(Tunnel), | |
596 | .init = vti_init, | |
597 | .sections = "Match\0NetDev\0Tunnel\0", | |
598 | .fill_message_create = netdev_vti6_fill_message_create, | |
599 | .create_type = NETDEV_CREATE_STACKED, | |
600 | .config_verify = netdev_tunnel_verify, | |
601 | }; | |
602 | ||
3be1d7e0 | 603 | const NetDevVTable gre_vtable = { |
aa9f1140 TG |
604 | .object_size = sizeof(Tunnel), |
605 | .init = gre_init, | |
606 | .sections = "Match\0NetDev\0Tunnel\0", | |
607 | .fill_message_create = netdev_gre_fill_message_create, | |
608 | .create_type = NETDEV_CREATE_STACKED, | |
3be1d7e0 TG |
609 | .config_verify = netdev_tunnel_verify, |
610 | }; | |
1af2536a SS |
611 | |
612 | const NetDevVTable gretap_vtable = { | |
613 | .object_size = sizeof(Tunnel), | |
614 | .init = gre_init, | |
615 | .sections = "Match\0NetDev\0Tunnel\0", | |
616 | .fill_message_create = netdev_gre_fill_message_create, | |
617 | .create_type = NETDEV_CREATE_STACKED, | |
618 | .config_verify = netdev_tunnel_verify, | |
619 | }; | |
855ee1a1 | 620 | |
b16492f8 SS |
621 | const NetDevVTable ip6gre_vtable = { |
622 | .object_size = sizeof(Tunnel), | |
623 | .init = ip6gre_init, | |
624 | .sections = "Match\0NetDev\0Tunnel\0", | |
625 | .fill_message_create = netdev_ip6gre_fill_message_create, | |
626 | .create_type = NETDEV_CREATE_STACKED, | |
627 | .config_verify = netdev_tunnel_verify, | |
628 | }; | |
629 | ||
630 | const NetDevVTable ip6gretap_vtable = { | |
631 | .object_size = sizeof(Tunnel), | |
632 | .init = ip6gre_init, | |
633 | .sections = "Match\0NetDev\0Tunnel\0", | |
634 | .fill_message_create = netdev_ip6gre_fill_message_create, | |
635 | .create_type = NETDEV_CREATE_STACKED, | |
636 | .config_verify = netdev_tunnel_verify, | |
637 | }; | |
638 | ||
855ee1a1 SS |
639 | const NetDevVTable ip6tnl_vtable = { |
640 | .object_size = sizeof(Tunnel), | |
641 | .init = ip6tnl_init, | |
642 | .sections = "Match\0NetDev\0Tunnel\0", | |
643 | .fill_message_create = netdev_ip6tnl_fill_message_create, | |
644 | .create_type = NETDEV_CREATE_STACKED, | |
645 | .config_verify = netdev_tunnel_verify, | |
646 | }; |