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02b59d57 TG |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2013 Tom Gundersen <teg@jklm.no> | |
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 | ||
987efa17 TG |
22 | #include <net/if.h> |
23 | ||
02b59d57 | 24 | #include "networkd.h" |
c6f7c917 | 25 | #include "network-internal.h" |
02b59d57 TG |
26 | #include "path-util.h" |
27 | #include "conf-files.h" | |
28 | #include "conf-parser.h" | |
29 | #include "list.h" | |
30 | ||
672682a6 TG |
31 | #define VLANID_MAX 4094 |
32 | ||
2c5859af | 33 | static const char* const netdev_kind_table[_NETDEV_KIND_MAX] = { |
52433f6b | 34 | [NETDEV_KIND_BRIDGE] = "bridge", |
54abf461 TG |
35 | [NETDEV_KIND_BOND] = "bond", |
36 | [NETDEV_KIND_VLAN] = "vlan", | |
fe6b2d55 | 37 | [NETDEV_KIND_MACVLAN] = "macvlan", |
7951dea2 SS |
38 | [NETDEV_KIND_IPIP] = "ipip", |
39 | [NETDEV_KIND_GRE] = "gre", | |
40 | [NETDEV_KIND_SIT] = "sit", | |
10142d75 | 41 | [NETDEV_KIND_VETH] = "veth", |
52433f6b | 42 | }; |
02b59d57 | 43 | |
1a436809 TG |
44 | DEFINE_STRING_TABLE_LOOKUP(netdev_kind, NetDevKind); |
45 | DEFINE_CONFIG_PARSE_ENUM(config_parse_netdev_kind, netdev_kind, NetDevKind, "Failed to parse netdev kind"); | |
52433f6b | 46 | |
2c5859af | 47 | static const char* const macvlan_mode_table[_NETDEV_MACVLAN_MODE_MAX] = { |
fe6b2d55 TG |
48 | [NETDEV_MACVLAN_MODE_PRIVATE] = "private", |
49 | [NETDEV_MACVLAN_MODE_VEPA] = "vepa", | |
50 | [NETDEV_MACVLAN_MODE_BRIDGE] = "bridge", | |
51 | [NETDEV_MACVLAN_MODE_PASSTHRU] = "passthru", | |
52 | }; | |
53 | ||
54 | DEFINE_STRING_TABLE_LOOKUP(macvlan_mode, MacVlanMode); | |
55 | DEFINE_CONFIG_PARSE_ENUM(config_parse_macvlan_mode, macvlan_mode, MacVlanMode, "Failed to parse macvlan mode"); | |
56 | ||
59cb64e6 TG |
57 | static void netdev_cancel_callbacks(NetDev *netdev) { |
58 | _cleanup_rtnl_message_unref_ sd_rtnl_message *m = NULL; | |
52433f6b TG |
59 | netdev_enslave_callback *callback; |
60 | ||
61 | if (!netdev) | |
02b59d57 TG |
62 | return; |
63 | ||
59cb64e6 TG |
64 | rtnl_message_new_synthetic_error(-ENODEV, 0, &m); |
65 | ||
52433f6b | 66 | while ((callback = netdev->callbacks)) { |
59cb64e6 TG |
67 | if (m) { |
68 | assert(callback->link); | |
69 | assert(callback->callback); | |
70 | assert(netdev->manager); | |
71 | assert(netdev->manager->rtnl); | |
72 | ||
73 | callback->callback(netdev->manager->rtnl, m, link); | |
74 | } | |
75 | ||
52433f6b | 76 | LIST_REMOVE(callbacks, netdev->callbacks, callback); |
02b59d57 TG |
77 | free(callback); |
78 | } | |
59cb64e6 TG |
79 | } |
80 | ||
81 | static void netdev_free(NetDev *netdev) { | |
82 | if (!netdev) | |
83 | return; | |
84 | ||
85 | netdev_cancel_callbacks(netdev); | |
02b59d57 | 86 | |
af4e9e2c TG |
87 | if (netdev->ifname) |
88 | hashmap_remove(netdev->manager->netdevs, netdev->ifname); | |
02b59d57 | 89 | |
52433f6b | 90 | free(netdev->filename); |
02b59d57 | 91 | |
52433f6b | 92 | free(netdev->description); |
af4e9e2c | 93 | free(netdev->ifname); |
02b59d57 | 94 | |
79e16ce3 LP |
95 | condition_free_list(netdev->match_host); |
96 | condition_free_list(netdev->match_virt); | |
97 | condition_free_list(netdev->match_kernel); | |
98 | condition_free_list(netdev->match_arch); | |
99 | ||
52433f6b | 100 | free(netdev); |
02b59d57 TG |
101 | } |
102 | ||
14b746f7 TG |
103 | NetDev *netdev_unref(NetDev *netdev) { |
104 | if (netdev && (-- netdev->n_ref <= 0)) | |
105 | netdev_free(netdev); | |
106 | ||
107 | return NULL; | |
108 | } | |
109 | ||
110 | NetDev *netdev_ref(NetDev *netdev) { | |
111 | if (netdev) | |
112 | assert_se(++ netdev->n_ref >= 2); | |
113 | ||
114 | return netdev; | |
115 | } | |
116 | ||
2cc7e981 TG |
117 | void netdev_drop(NetDev *netdev) { |
118 | if (!netdev || netdev->state == NETDEV_STATE_LINGER) | |
119 | return; | |
120 | ||
121 | netdev->state = NETDEV_STATE_LINGER; | |
122 | ||
5e273efe | 123 | log_debug_netdev(netdev, "netdev removed"); |
370e9930 | 124 | |
2cc7e981 TG |
125 | netdev_cancel_callbacks(netdev); |
126 | ||
127 | netdev_unref(netdev); | |
128 | ||
129 | return; | |
130 | } | |
131 | ||
1a436809 TG |
132 | int netdev_get(Manager *manager, const char *name, NetDev **ret) { |
133 | NetDev *netdev; | |
02b59d57 TG |
134 | |
135 | assert(manager); | |
136 | assert(name); | |
137 | assert(ret); | |
138 | ||
52433f6b TG |
139 | netdev = hashmap_get(manager->netdevs, name); |
140 | if (!netdev) { | |
02b59d57 TG |
141 | *ret = NULL; |
142 | return -ENOENT; | |
143 | } | |
144 | ||
52433f6b | 145 | *ret = netdev; |
02b59d57 TG |
146 | |
147 | return 0; | |
148 | } | |
149 | ||
1a436809 | 150 | static int netdev_enter_failed(NetDev *netdev) { |
52433f6b | 151 | netdev->state = NETDEV_STATE_FAILED; |
02b59d57 TG |
152 | |
153 | return 0; | |
154 | } | |
155 | ||
1a436809 | 156 | static int netdev_enslave_ready(NetDev *netdev, Link* link, sd_rtnl_message_handler_t callback) { |
cf6a8911 | 157 | _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL; |
02b59d57 TG |
158 | int r; |
159 | ||
52433f6b TG |
160 | assert(netdev); |
161 | assert(netdev->state == NETDEV_STATE_READY); | |
4fb7242c TG |
162 | assert(netdev->manager); |
163 | assert(netdev->manager->rtnl); | |
02b59d57 TG |
164 | assert(link); |
165 | assert(callback); | |
166 | ||
151b9b96 LP |
167 | r = sd_rtnl_message_new_link(netdev->manager->rtnl, &req, |
168 | RTM_SETLINK, link->ifindex); | |
02b59d57 | 169 | if (r < 0) { |
52433f6b | 170 | log_error_netdev(netdev, |
3333d748 ZJS |
171 | "Could not allocate RTM_SETLINK message: %s", |
172 | strerror(-r)); | |
02b59d57 TG |
173 | return r; |
174 | } | |
175 | ||
50add290 | 176 | r = sd_rtnl_message_append_u32(req, IFLA_MASTER, netdev->ifindex); |
02b59d57 | 177 | if (r < 0) { |
52433f6b | 178 | log_error_netdev(netdev, |
3333d748 ZJS |
179 | "Could not append IFLA_MASTER attribute: %s", |
180 | strerror(-r)); | |
02b59d57 TG |
181 | return r; |
182 | } | |
183 | ||
52433f6b | 184 | r = sd_rtnl_call_async(netdev->manager->rtnl, req, callback, link, 0, NULL); |
02b59d57 | 185 | if (r < 0) { |
52433f6b | 186 | log_error_netdev(netdev, |
3333d748 ZJS |
187 | "Could not send rtnetlink message: %s", |
188 | strerror(-r)); | |
02b59d57 TG |
189 | return r; |
190 | } | |
191 | ||
52433f6b | 192 | log_debug_netdev(netdev, "enslaving link '%s'", link->ifname); |
ab47d620 | 193 | |
02b59d57 TG |
194 | return 0; |
195 | } | |
196 | ||
1a436809 | 197 | static int netdev_enter_ready(NetDev *netdev) { |
52433f6b | 198 | netdev_enslave_callback *callback; |
02b59d57 | 199 | |
52433f6b | 200 | assert(netdev); |
af4e9e2c | 201 | assert(netdev->ifname); |
924fe430 | 202 | |
ba5596ec TG |
203 | if (netdev->state != NETDEV_STATE_CREATING) |
204 | return 0; | |
205 | ||
52433f6b | 206 | netdev->state = NETDEV_STATE_READY; |
02b59d57 | 207 | |
52433f6b | 208 | log_info_netdev(netdev, "netdev ready"); |
02b59d57 | 209 | |
52433f6b | 210 | LIST_FOREACH(callbacks, callback, netdev->callbacks) { |
b226d99b | 211 | /* enslave the links that were attempted to be enslaved before the |
02b59d57 | 212 | * link was ready */ |
52433f6b | 213 | netdev_enslave_ready(netdev, callback->link, callback->callback); |
02b59d57 TG |
214 | } |
215 | ||
216 | return 0; | |
217 | } | |
52433f6b | 218 | static int netdev_create_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) { |
1a436809 | 219 | NetDev *netdev = userdata; |
172f6635 | 220 | int r; |
02b59d57 | 221 | |
52433f6b | 222 | assert(netdev->state != _NETDEV_STATE_INVALID); |
02b59d57 TG |
223 | |
224 | r = sd_rtnl_message_get_errno(m); | |
e09826dc | 225 | if (r == -EEXIST) |
505f8da7 TG |
226 | log_debug_netdev(netdev, "netdev exists, using existing"); |
227 | else if (r < 0) { | |
3d94b787 | 228 | log_warning_netdev(netdev, "netdev could not be created: %s", strerror(-r)); |
37ebeb77 | 229 | netdev_drop(netdev); |
dd3efc09 TG |
230 | |
231 | return 1; | |
02b59d57 TG |
232 | } |
233 | ||
dd3efc09 | 234 | return 1; |
02b59d57 TG |
235 | } |
236 | ||
7951dea2 SS |
237 | int config_parse_tunnel_address(const char *unit, |
238 | const char *filename, | |
239 | unsigned line, | |
240 | const char *section, | |
241 | unsigned section_line, | |
242 | const char *lvalue, | |
243 | int ltype, | |
244 | const char *rvalue, | |
245 | void *data, | |
246 | void *userdata) { | |
247 | NetDev *n = data; | |
248 | unsigned char family = AF_INET; | |
249 | int r; | |
250 | ||
251 | assert(filename); | |
252 | assert(lvalue); | |
253 | assert(rvalue); | |
254 | assert(data); | |
255 | ||
256 | r = net_parse_inaddr(rvalue, &family, n); | |
257 | if (r < 0) { | |
258 | log_syntax(unit, LOG_ERR, filename, line, EINVAL, | |
259 | "Tunnel address is invalid, ignoring assignment: %s", rvalue); | |
260 | return 0; | |
261 | } | |
262 | return 0; | |
263 | } | |
264 | ||
1a436809 | 265 | static int netdev_create(NetDev *netdev, Link *link, sd_rtnl_message_handler_t callback) { |
cf6a8911 | 266 | _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL; |
52433f6b | 267 | const char *kind; |
02b59d57 TG |
268 | int r; |
269 | ||
52433f6b | 270 | assert(netdev); |
fe6b2d55 TG |
271 | assert(!(netdev->kind == NETDEV_KIND_VLAN || netdev->kind == NETDEV_KIND_MACVLAN) || |
272 | (link && callback)); | |
af4e9e2c | 273 | assert(netdev->ifname); |
52433f6b TG |
274 | assert(netdev->manager); |
275 | assert(netdev->manager->rtnl); | |
02b59d57 | 276 | |
151b9b96 | 277 | r = sd_rtnl_message_new_link(netdev->manager->rtnl, &req, RTM_NEWLINK, 0); |
02b59d57 | 278 | if (r < 0) { |
52433f6b | 279 | log_error_netdev(netdev, |
3333d748 ZJS |
280 | "Could not allocate RTM_NEWLINK message: %s", |
281 | strerror(-r)); | |
02b59d57 TG |
282 | return r; |
283 | } | |
284 | ||
54abf461 TG |
285 | if (link) { |
286 | r = sd_rtnl_message_append_u32(req, IFLA_LINK, link->ifindex); | |
287 | if (r < 0) { | |
288 | log_error_netdev(netdev, | |
289 | "Could not append IFLA_LINK attribute: %s", | |
290 | strerror(-r)); | |
291 | return r; | |
292 | } | |
293 | } | |
294 | ||
af4e9e2c | 295 | r = sd_rtnl_message_append_string(req, IFLA_IFNAME, netdev->ifname); |
02b59d57 | 296 | if (r < 0) { |
52433f6b | 297 | log_error_netdev(netdev, |
3333d748 ZJS |
298 | "Could not append IFLA_IFNAME attribute: %s", |
299 | strerror(-r)); | |
02b59d57 TG |
300 | return r; |
301 | } | |
302 | ||
7951dea2 SS |
303 | if(netdev->mtu) { |
304 | r = sd_rtnl_message_append_u32(req, IFLA_MTU, netdev->mtu); | |
305 | if (r < 0) { | |
306 | log_error_netdev(netdev, | |
307 | "Could not append IFLA_MTU attribute: %s", | |
308 | strerror(-r)); | |
309 | return r; | |
310 | } | |
311 | } | |
312 | ||
ee3a6a51 | 313 | r = sd_rtnl_message_open_container(req, IFLA_LINKINFO); |
02b59d57 | 314 | if (r < 0) { |
52433f6b | 315 | log_error_netdev(netdev, |
3333d748 ZJS |
316 | "Could not open IFLA_LINKINFO container: %s", |
317 | strerror(-r)); | |
02b59d57 TG |
318 | return r; |
319 | } | |
320 | ||
52433f6b TG |
321 | kind = netdev_kind_to_string(netdev->kind); |
322 | if (!kind) { | |
323 | log_error_netdev(netdev, "Invalid kind"); | |
324 | return -EINVAL; | |
325 | } | |
326 | ||
d8e538ec | 327 | r = sd_rtnl_message_open_container_union(req, IFLA_INFO_DATA, kind); |
02b59d57 | 328 | if (r < 0) { |
52433f6b | 329 | log_error_netdev(netdev, |
d8e538ec TG |
330 | "Could not open IFLA_INFO_DATA container: %s", |
331 | strerror(-r)); | |
02b59d57 TG |
332 | return r; |
333 | } | |
334 | ||
d8e538ec TG |
335 | if (netdev->vlanid <= VLANID_MAX) { |
336 | r = sd_rtnl_message_append_u16(req, IFLA_VLAN_ID, netdev->vlanid); | |
54abf461 TG |
337 | if (r < 0) { |
338 | log_error_netdev(netdev, | |
d8e538ec | 339 | "Could not append IFLA_VLAN_ID attribute: %s", |
54abf461 TG |
340 | strerror(-r)); |
341 | return r; | |
342 | } | |
d8e538ec | 343 | } |
54abf461 | 344 | |
d8e538ec TG |
345 | if (netdev->macvlan_mode != _NETDEV_MACVLAN_MODE_INVALID) { |
346 | r = sd_rtnl_message_append_u32(req, IFLA_MACVLAN_MODE, netdev->macvlan_mode); | |
347 | if (r < 0) { | |
348 | log_error_netdev(netdev, | |
349 | "Could not append IFLA_MACVLAN_MODE attribute: %s", | |
350 | strerror(-r)); | |
54abf461 TG |
351 | return r; |
352 | } | |
353 | } | |
354 | ||
d8e538ec TG |
355 | r = sd_rtnl_message_close_container(req); |
356 | if (r < 0) { | |
357 | log_error_netdev(netdev, | |
358 | "Could not close IFLA_INFO_DATA container %s", | |
359 | strerror(-r)); | |
360 | return r; | |
361 | } | |
362 | ||
02b59d57 TG |
363 | r = sd_rtnl_message_close_container(req); |
364 | if (r < 0) { | |
52433f6b | 365 | log_error_netdev(netdev, |
3333d748 ZJS |
366 | "Could not close IFLA_LINKINFO container %s", |
367 | strerror(-r)); | |
02b59d57 TG |
368 | return r; |
369 | } | |
370 | ||
54abf461 TG |
371 | if (link) |
372 | r = sd_rtnl_call_async(netdev->manager->rtnl, req, callback, link, 0, NULL); | |
373 | else | |
374 | r = sd_rtnl_call_async(netdev->manager->rtnl, req, &netdev_create_handler, netdev, 0, NULL); | |
02b59d57 | 375 | if (r < 0) { |
52433f6b | 376 | log_error_netdev(netdev, |
3333d748 | 377 | "Could not send rtnetlink message: %s", strerror(-r)); |
02b59d57 TG |
378 | return r; |
379 | } | |
380 | ||
52433f6b | 381 | log_debug_netdev(netdev, "creating netdev"); |
02b59d57 | 382 | |
52433f6b | 383 | netdev->state = NETDEV_STATE_CREATING; |
02b59d57 TG |
384 | |
385 | return 0; | |
386 | } | |
387 | ||
1a436809 | 388 | int netdev_enslave(NetDev *netdev, Link *link, sd_rtnl_message_handler_t callback) { |
b226d99b TG |
389 | int r; |
390 | ||
fe6b2d55 | 391 | if (netdev->kind == NETDEV_KIND_VLAN || netdev->kind == NETDEV_KIND_MACVLAN) |
54abf461 TG |
392 | return netdev_create(netdev, link, callback); |
393 | ||
7951dea2 SS |
394 | if(netdev->kind == NETDEV_KIND_IPIP || |
395 | netdev->kind == NETDEV_KIND_GRE || | |
396 | netdev->kind == NETDEV_KIND_SIT) | |
397 | return netdev_create_tunnel(link, netdev_create_handler); | |
398 | ||
52433f6b | 399 | if (netdev->state == NETDEV_STATE_READY) { |
b226d99b TG |
400 | r = netdev_enslave_ready(netdev, link, callback); |
401 | if (r < 0) | |
402 | return r; | |
02b59d57 | 403 | } else { |
52433f6b TG |
404 | /* the netdev is not yet read, save this request for when it is*/ |
405 | netdev_enslave_callback *cb; | |
02b59d57 | 406 | |
52433f6b | 407 | cb = new0(netdev_enslave_callback, 1); |
02b59d57 TG |
408 | if (!cb) |
409 | return log_oom(); | |
410 | ||
411 | cb->callback = callback; | |
412 | cb->link = link; | |
413 | ||
52433f6b | 414 | LIST_PREPEND(callbacks, netdev->callbacks, cb); |
02b59d57 TG |
415 | } |
416 | ||
417 | return 0; | |
418 | } | |
419 | ||
d39edfc7 | 420 | int netdev_set_ifindex(NetDev *netdev, sd_rtnl_message *message) { |
c3ebdce3 | 421 | uint16_t type; |
d39edfc7 TG |
422 | const char *kind; |
423 | char *received_kind; | |
c6315a7a | 424 | char *received_name; |
d39edfc7 TG |
425 | int r, ifindex; |
426 | ||
50add290 | 427 | assert(netdev); |
c3ebdce3 | 428 | assert(message); |
02b59d57 | 429 | |
c3ebdce3 | 430 | r = sd_rtnl_message_get_type(message, &type); |
ba5596ec TG |
431 | if (r < 0) { |
432 | log_error_netdev(netdev, "Could not get rtnl message type"); | |
c3ebdce3 | 433 | return r; |
ba5596ec | 434 | } |
c3ebdce3 | 435 | |
ba5596ec TG |
436 | if (type != RTM_NEWLINK) { |
437 | log_error_netdev(netdev, "Can not set ifindex from unexpected rtnl message type"); | |
c3ebdce3 | 438 | return -EINVAL; |
ba5596ec | 439 | } |
d39edfc7 | 440 | |
a21df104 TG |
441 | r = sd_rtnl_message_link_get_ifindex(message, &ifindex); |
442 | if (r < 0) { | |
443 | log_error_netdev(netdev, "Could not get ifindex: %s", strerror(-r)); | |
444 | netdev_enter_failed(netdev); | |
445 | return r; | |
446 | } else if (ifindex <= 0) { | |
447 | log_error_netdev(netdev, "Got invalid ifindex: %d", ifindex); | |
448 | netdev_enter_failed(netdev); | |
449 | return r; | |
450 | } | |
451 | ||
a21df104 TG |
452 | if (netdev->ifindex > 0) { |
453 | if (netdev->ifindex != ifindex) { | |
454 | log_error_netdev(netdev, "Could not set ifindex to %d, already set to %d", | |
455 | ifindex, netdev->ifindex); | |
456 | netdev_enter_failed(netdev); | |
457 | return -EEXIST; | |
458 | } else | |
459 | /* ifindex already set to the same for this netdev */ | |
460 | return 0; | |
461 | } | |
462 | ||
c6315a7a TG |
463 | r = sd_rtnl_message_read_string(message, IFLA_IFNAME, &received_name); |
464 | if (r < 0) { | |
465 | log_error_netdev(netdev, "Could not get IFNAME"); | |
466 | return r; | |
467 | } | |
468 | ||
af4e9e2c | 469 | if (!streq(netdev->ifname, received_name)) { |
c6315a7a TG |
470 | log_error_netdev(netdev, "Received newlink with wrong IFNAME %s", |
471 | received_name); | |
472 | netdev_enter_failed(netdev); | |
473 | return r; | |
474 | } | |
475 | ||
d39edfc7 TG |
476 | r = sd_rtnl_message_enter_container(message, IFLA_LINKINFO); |
477 | if (r < 0) { | |
478 | log_error_netdev(netdev, "Could not get LINKINFO"); | |
479 | return r; | |
480 | } | |
481 | ||
482 | r = sd_rtnl_message_read_string(message, IFLA_INFO_KIND, &received_kind); | |
483 | if (r < 0) { | |
484 | log_error_netdev(netdev, "Could not get KIND"); | |
485 | return r; | |
486 | } | |
487 | ||
505f8da7 TG |
488 | r = sd_rtnl_message_exit_container(message); |
489 | if (r < 0) { | |
490 | log_error_netdev(netdev, "Could not exit container"); | |
491 | return r; | |
492 | } | |
493 | ||
c3ebdce3 TG |
494 | kind = netdev_kind_to_string(netdev->kind); |
495 | if (!kind) { | |
496 | log_error_netdev(netdev, "Could not get kind"); | |
497 | netdev_enter_failed(netdev); | |
498 | return -EINVAL; | |
499 | } | |
500 | ||
d39edfc7 | 501 | if (!streq(kind, received_kind)) { |
c6315a7a TG |
502 | log_error_netdev(netdev, "Received newlink with wrong KIND %s, " |
503 | "expected %s", received_kind, kind); | |
d39edfc7 TG |
504 | netdev_enter_failed(netdev); |
505 | return r; | |
506 | } | |
507 | ||
50add290 | 508 | netdev->ifindex = ifindex; |
52433f6b | 509 | |
5261692f TG |
510 | log_debug_netdev(netdev, "netdev has index %d", netdev->ifindex); |
511 | ||
52433f6b | 512 | netdev_enter_ready(netdev); |
02b59d57 TG |
513 | |
514 | return 0; | |
515 | } | |
516 | ||
52433f6b | 517 | static int netdev_load_one(Manager *manager, const char *filename) { |
14b746f7 | 518 | _cleanup_netdev_unref_ NetDev *netdev = NULL; |
02b59d57 TG |
519 | _cleanup_fclose_ FILE *file = NULL; |
520 | int r; | |
521 | ||
bf1bc670 TA |
522 | assert(manager); |
523 | assert(filename); | |
524 | ||
6916ec29 TG |
525 | if (null_or_empty_path(filename)) { |
526 | log_debug("skipping empty file: %s", filename); | |
527 | return 0; | |
528 | } | |
529 | ||
02b59d57 TG |
530 | file = fopen(filename, "re"); |
531 | if (!file) { | |
532 | if (errno == ENOENT) | |
533 | return 0; | |
534 | else | |
ecb08ec6 | 535 | return -errno; |
02b59d57 TG |
536 | } |
537 | ||
1a436809 | 538 | netdev = new0(NetDev, 1); |
52433f6b | 539 | if (!netdev) |
02b59d57 TG |
540 | return log_oom(); |
541 | ||
14b746f7 | 542 | netdev->n_ref = 1; |
52433f6b TG |
543 | netdev->manager = manager; |
544 | netdev->state = _NETDEV_STATE_INVALID; | |
545 | netdev->kind = _NETDEV_KIND_INVALID; | |
fe6b2d55 | 546 | netdev->macvlan_mode = _NETDEV_MACVLAN_MODE_INVALID; |
672682a6 | 547 | netdev->vlanid = VLANID_MAX + 1; |
a9f434cf | 548 | netdev->tunnel_pmtudisc = true; |
02b59d57 | 549 | |
10142d75 | 550 | r = config_parse(NULL, filename, file, "Match\0NetDev\0VLAN\0MACVLAN\0Tunnel\0Peer\0", |
fe6b2d55 TG |
551 | config_item_perf_lookup, (void*) network_netdev_gperf_lookup, |
552 | false, false, netdev); | |
02b59d57 TG |
553 | if (r < 0) { |
554 | log_warning("Could not parse config file %s: %s", filename, strerror(-r)); | |
555 | return r; | |
449f7554 | 556 | } |
02b59d57 | 557 | |
52433f6b | 558 | if (netdev->kind == _NETDEV_KIND_INVALID) { |
1a436809 | 559 | log_warning("NetDev without Kind configured in %s. Ignoring", filename); |
52433f6b TG |
560 | return 0; |
561 | } | |
562 | ||
af4e9e2c | 563 | if (!netdev->ifname) { |
1a436809 | 564 | log_warning("NetDev without Name configured in %s. Ignoring", filename); |
02b59d57 TG |
565 | return 0; |
566 | } | |
567 | ||
672682a6 TG |
568 | if (netdev->kind == NETDEV_KIND_VLAN && netdev->vlanid > VLANID_MAX) { |
569 | log_warning("VLAN without valid Id configured in %s. Ignoring", filename); | |
54abf461 TG |
570 | return 0; |
571 | } | |
572 | ||
fe6b2d55 TG |
573 | if (netdev->kind != NETDEV_KIND_VLAN && netdev->vlanid <= VLANID_MAX) { |
574 | log_warning("VLAN Id configured for a %s in %s. Ignoring", | |
575 | netdev_kind_to_string(netdev->kind), filename); | |
576 | return 0; | |
577 | } | |
578 | ||
579 | if (netdev->kind != NETDEV_KIND_MACVLAN && | |
580 | netdev->macvlan_mode != _NETDEV_MACVLAN_MODE_INVALID) { | |
581 | log_warning("MACVLAN Mode configured for a %s in %s. Ignoring", | |
582 | netdev_kind_to_string(netdev->kind), filename); | |
583 | return 0; | |
584 | } | |
585 | ||
52433f6b TG |
586 | netdev->filename = strdup(filename); |
587 | if (!netdev->filename) | |
02b59d57 TG |
588 | return log_oom(); |
589 | ||
c0dda186 | 590 | if (net_match_config(NULL, NULL, NULL, NULL, NULL, |
edbb03e9 TG |
591 | netdev->match_host, netdev->match_virt, |
592 | netdev->match_kernel, netdev->match_arch, | |
bf175aaf | 593 | NULL, NULL, NULL, NULL, NULL, NULL) <= 0) |
c0dda186 TG |
594 | return 0; |
595 | ||
af4e9e2c | 596 | r = hashmap_put(netdev->manager->netdevs, netdev->ifname, netdev); |
02b59d57 TG |
597 | if (r < 0) |
598 | return r; | |
599 | ||
52433f6b | 600 | LIST_HEAD_INIT(netdev->callbacks); |
02b59d57 | 601 | |
10142d75 SS |
602 | if(netdev->kind == NETDEV_KIND_VETH) |
603 | return netdev_create_veth(netdev, netdev_create_handler); | |
604 | ||
fe6b2d55 | 605 | if (netdev->kind != NETDEV_KIND_VLAN && |
7951dea2 SS |
606 | netdev->kind != NETDEV_KIND_MACVLAN && |
607 | netdev->kind != NETDEV_KIND_IPIP && | |
608 | netdev->kind != NETDEV_KIND_GRE && | |
609 | netdev->kind != NETDEV_KIND_SIT) { | |
54abf461 TG |
610 | r = netdev_create(netdev, NULL, NULL); |
611 | if (r < 0) | |
612 | return r; | |
613 | } | |
02b59d57 | 614 | |
69ceb044 TG |
615 | log_debug_netdev(netdev, "loaded %s", netdev_kind_to_string(netdev->kind)); |
616 | ||
52433f6b | 617 | netdev = NULL; |
02b59d57 TG |
618 | |
619 | return 0; | |
620 | } | |
621 | ||
52433f6b | 622 | int netdev_load(Manager *manager) { |
1a436809 | 623 | NetDev *netdev; |
02b59d57 TG |
624 | char **files, **f; |
625 | int r; | |
626 | ||
627 | assert(manager); | |
628 | ||
52433f6b | 629 | while ((netdev = hashmap_first(manager->netdevs))) |
14b746f7 | 630 | netdev_unref(netdev); |
02b59d57 | 631 | |
2ad8416d | 632 | r = conf_files_list_strv(&files, ".netdev", NULL, network_dirs); |
02b59d57 TG |
633 | if (r < 0) { |
634 | log_error("Failed to enumerate netdev files: %s", strerror(-r)); | |
635 | return r; | |
636 | } | |
637 | ||
638 | STRV_FOREACH_BACKWARDS(f, files) { | |
52433f6b | 639 | r = netdev_load_one(manager, *f); |
02b59d57 TG |
640 | if (r < 0) |
641 | return r; | |
642 | } | |
643 | ||
644 | strv_free(files); | |
645 | ||
646 | return 0; | |
647 | } |