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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
ca5ad760 | 2 | |
67c311ab YW |
3 | #include <netinet/in.h> |
4 | #include <linux/if_arp.h> | |
5 | ||
f63e09ef | 6 | #include "bus-error.h" |
d2775306 | 7 | #include "bus-locator.h" |
8664ded7 | 8 | #include "dhcp-option.h" |
e7d5fe17 | 9 | #include "dhcp6-internal.h" |
0e96961d | 10 | #include "escape.h" |
cde74a65 | 11 | #include "hexdecoct.h" |
bffaa49e | 12 | #include "in-addr-prefix-util.h" |
ca5ad760 | 13 | #include "networkd-dhcp-common.h" |
67c311ab | 14 | #include "networkd-link.h" |
256c75fd | 15 | #include "networkd-manager.h" |
ca5ad760 | 16 | #include "networkd-network.h" |
7db98bc9 | 17 | #include "networkd-route-util.h" |
ca5ad760 | 18 | #include "parse-util.h" |
67c311ab | 19 | #include "socket-util.h" |
ca5ad760 | 20 | #include "string-table.h" |
426588bc | 21 | #include "strv.h" |
e47bcb7d YW |
22 | #include "vrf.h" |
23 | ||
24 | static uint32_t link_get_vrf_table(Link *link) { | |
25 | assert(link); | |
26 | assert(link->network); | |
27 | ||
28 | return link->network->vrf ? VRF(link->network->vrf)->table : RT_TABLE_MAIN; | |
29 | } | |
30 | ||
31 | uint32_t link_get_dhcp4_route_table(Link *link) { | |
32 | assert(link); | |
33 | assert(link->network); | |
34 | ||
35 | /* When the interface is part of an VRF use the VRFs routing table, unless | |
36 | * another table is explicitly specified. */ | |
37 | ||
38 | if (link->network->dhcp_route_table_set) | |
39 | return link->network->dhcp_route_table; | |
40 | return link_get_vrf_table(link); | |
41 | } | |
42 | ||
52672db3 | 43 | uint32_t link_get_ndisc_route_table(Link *link) { |
e47bcb7d YW |
44 | assert(link); |
45 | assert(link->network); | |
46 | ||
52672db3 YW |
47 | if (link->network->ndisc_route_table_set) |
48 | return link->network->ndisc_route_table; | |
e47bcb7d YW |
49 | return link_get_vrf_table(link); |
50 | } | |
ca5ad760 | 51 | |
67c311ab YW |
52 | bool link_dhcp_enabled(Link *link, int family) { |
53 | assert(link); | |
54 | assert(IN_SET(family, AF_INET, AF_INET6)); | |
55 | ||
7e2f684e YW |
56 | /* Currently, sd-dhcp-client supports only ethernet and infiniband. */ |
57 | if (family == AF_INET && !IN_SET(link->iftype, ARPHRD_ETHER, ARPHRD_INFINIBAND)) | |
58 | return false; | |
59 | ||
67c311ab YW |
60 | if (family == AF_INET6 && !socket_ipv6_is_supported()) |
61 | return false; | |
62 | ||
63 | if (link->flags & IFF_LOOPBACK) | |
64 | return false; | |
65 | ||
22d37e5d | 66 | if (link->iftype == ARPHRD_CAN) |
67c311ab YW |
67 | return false; |
68 | ||
22d37e5d | 69 | if (!link->network) |
67c311ab YW |
70 | return false; |
71 | ||
72 | return link->network->dhcp & (family == AF_INET ? ADDRESS_FAMILY_IPV4 : ADDRESS_FAMILY_IPV6); | |
73 | } | |
74 | ||
22d37e5d YW |
75 | void network_adjust_dhcp(Network *network) { |
76 | assert(network); | |
77 | assert(network->dhcp >= 0); | |
78 | ||
79 | if (network->dhcp == ADDRESS_FAMILY_NO) | |
80 | return; | |
81 | ||
82 | /* Bonding slave does not support addressing. */ | |
83 | if (network->bond) { | |
84 | log_warning("%s: Cannot enable DHCP= when Bond= is specified, disabling DHCP=.", | |
85 | network->filename); | |
86 | network->dhcp = ADDRESS_FAMILY_NO; | |
87 | return; | |
88 | } | |
89 | ||
90 | if (!FLAGS_SET(network->link_local, ADDRESS_FAMILY_IPV6) && | |
91 | FLAGS_SET(network->dhcp, ADDRESS_FAMILY_IPV6)) { | |
f81ac115 | 92 | log_warning("%s: DHCPv6 client is enabled but IPv6 link-local addressing is disabled. " |
22d37e5d YW |
93 | "Disabling DHCPv6 client.", network->filename); |
94 | SET_FLAG(network->dhcp, ADDRESS_FAMILY_IPV6, false); | |
95 | } | |
ae7ea5a7 YW |
96 | |
97 | network_adjust_dhcp4(network); | |
22d37e5d YW |
98 | } |
99 | ||
8c72f5c0 YW |
100 | static bool duid_needs_product_uuid(const DUID *duid) { |
101 | assert(duid); | |
102 | ||
103 | return duid->type == DUID_TYPE_UUID && duid->raw_data_len == 0; | |
104 | } | |
105 | ||
28f9667d | 106 | static const struct DUID fallback_duid = { .type = DUID_TYPE_EN }; |
4e26a5ba | 107 | |
28f9667d YW |
108 | const DUID *link_get_duid(Link *link, int family) { |
109 | const DUID *duid; | |
4e26a5ba YW |
110 | |
111 | assert(link); | |
112 | assert(IN_SET(family, AF_INET, AF_INET6)); | |
113 | ||
114 | if (link->network) { | |
115 | duid = family == AF_INET ? &link->network->dhcp_duid : &link->network->dhcp6_duid; | |
28f9667d YW |
116 | if (duid->type != _DUID_TYPE_INVALID) { |
117 | if (duid_needs_product_uuid(duid)) | |
118 | return &link->manager->duid_product_uuid; | |
119 | else | |
120 | return duid; | |
121 | } | |
4e26a5ba YW |
122 | } |
123 | ||
124 | duid = family == AF_INET ? &link->manager->dhcp_duid : &link->manager->dhcp6_duid; | |
125 | if (link->hw_addr.length == 0 && IN_SET(duid->type, DUID_TYPE_LLT, DUID_TYPE_LL)) | |
53ec5dd0 YW |
126 | /* Fallback to DUID that works without MAC address. |
127 | * This is useful for tunnel devices without MAC address. */ | |
1d370b2c | 128 | return &fallback_duid; |
4e26a5ba YW |
129 | |
130 | return duid; | |
256c75fd YW |
131 | } |
132 | ||
256c75fd | 133 | static int get_product_uuid_handler(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) { |
99534007 | 134 | Manager *manager = ASSERT_PTR(userdata); |
256c75fd YW |
135 | const sd_bus_error *e; |
136 | const void *a; | |
137 | size_t sz; | |
256c75fd YW |
138 | int r; |
139 | ||
140 | assert(m); | |
256c75fd | 141 | |
ccffa166 YW |
142 | /* To avoid calling GetProductUUID() bus method so frequently, set the flag below |
143 | * even if the method fails. */ | |
144 | manager->has_product_uuid = true; | |
145 | ||
256c75fd YW |
146 | e = sd_bus_message_get_error(m); |
147 | if (e) { | |
f63e09ef YW |
148 | r = sd_bus_error_get_errno(e); |
149 | log_warning_errno(r, "Could not get product UUID. Falling back to use machine-app-specific ID as DUID-UUID: %s", | |
150 | bus_error_message(e, r)); | |
ccffa166 | 151 | return 0; |
256c75fd YW |
152 | } |
153 | ||
154 | r = sd_bus_message_read_array(m, 'y', &a, &sz); | |
f63e09ef YW |
155 | if (r < 0) { |
156 | log_warning_errno(r, "Failed to get product UUID. Falling back to use machine-app-specific ID as DUID-UUID: %m"); | |
ccffa166 | 157 | return 0; |
f63e09ef | 158 | } |
256c75fd YW |
159 | |
160 | if (sz != sizeof(sd_id128_t)) { | |
f63e09ef | 161 | log_warning("Invalid product UUID. Falling back to use machine-app-specific ID as DUID-UUID."); |
ccffa166 | 162 | return 0; |
256c75fd YW |
163 | } |
164 | ||
ccffa166 YW |
165 | log_debug("Successfully obtained product UUID"); |
166 | ||
28f9667d YW |
167 | memcpy(&manager->duid_product_uuid.raw_data, a, sz); |
168 | manager->duid_product_uuid.raw_data_len = sz; | |
256c75fd | 169 | |
ccffa166 | 170 | return 0; |
256c75fd YW |
171 | } |
172 | ||
4e26a5ba | 173 | int manager_request_product_uuid(Manager *m) { |
ccffa166 | 174 | static bool bus_method_is_called = false; |
256c75fd YW |
175 | int r; |
176 | ||
177 | assert(m); | |
178 | ||
ccffa166 | 179 | if (bus_method_is_called) |
256c75fd YW |
180 | return 0; |
181 | ||
ccffa166 | 182 | if (sd_bus_is_ready(m->bus) <= 0 && !m->product_uuid_requested) { |
256c75fd | 183 | log_debug("Not connected to system bus, requesting product UUID later."); |
ccffa166 | 184 | m->product_uuid_requested = true; |
256c75fd YW |
185 | return 0; |
186 | } | |
187 | ||
ccffa166 YW |
188 | m->product_uuid_requested = false; |
189 | ||
d2775306 | 190 | r = bus_call_method_async( |
256c75fd YW |
191 | m->bus, |
192 | NULL, | |
d2775306 | 193 | bus_hostname, |
256c75fd YW |
194 | "GetProductUUID", |
195 | get_product_uuid_handler, | |
196 | m, | |
197 | "b", | |
198 | false); | |
199 | if (r < 0) | |
200 | return log_warning_errno(r, "Failed to get product UUID: %m"); | |
201 | ||
ccffa166 YW |
202 | log_debug("Requesting product UUID."); |
203 | ||
204 | bus_method_is_called = true; | |
4e26a5ba | 205 | |
256c75fd YW |
206 | return 0; |
207 | } | |
208 | ||
28f9667d | 209 | int dhcp_configure_duid(Link *link, const DUID *duid) { |
256c75fd | 210 | Manager *m; |
256c75fd YW |
211 | int r; |
212 | ||
213 | assert(link); | |
214 | assert(link->manager); | |
294f129b | 215 | assert(duid); |
256c75fd YW |
216 | |
217 | m = link->manager; | |
256c75fd | 218 | |
8c72f5c0 | 219 | if (!duid_needs_product_uuid(duid)) |
256c75fd YW |
220 | return 1; |
221 | ||
28f9667d | 222 | if (m->has_product_uuid) |
256c75fd | 223 | return 1; |
256c75fd | 224 | |
4e26a5ba YW |
225 | r = manager_request_product_uuid(m); |
226 | if (r < 0) { | |
227 | log_link_warning_errno(link, r, | |
228 | "Failed to get product UUID. Falling back to use machine-app-specific ID as DUID-UUID: %m"); | |
6211b736 YW |
229 | |
230 | m->has_product_uuid = true; /* Do not request UUID again on failure. */ | |
4e26a5ba YW |
231 | return 1; |
232 | } | |
256c75fd | 233 | |
256c75fd YW |
234 | return 0; |
235 | } | |
236 | ||
c995fa02 YW |
237 | bool address_is_filtered(int family, const union in_addr_union *address, uint8_t prefixlen, Set *allow_list, Set *deny_list) { |
238 | struct in_addr_prefix *p; | |
239 | ||
240 | assert(IN_SET(family, AF_INET, AF_INET6)); | |
241 | assert(address); | |
242 | ||
243 | if (allow_list) { | |
244 | SET_FOREACH(p, allow_list) | |
245 | if (p->family == family && | |
246 | p->prefixlen <= prefixlen && | |
247 | in_addr_prefix_covers(family, &p->address, p->prefixlen, address) > 0) | |
248 | return false; | |
249 | ||
250 | return true; | |
251 | } | |
252 | ||
253 | SET_FOREACH(p, deny_list) | |
254 | if (p->family == family && | |
255 | in_addr_prefix_intersect(family, &p->address, p->prefixlen, address, prefixlen) > 0) | |
256 | return true; | |
257 | ||
258 | return false; | |
259 | } | |
260 | ||
6341ea54 YW |
261 | int link_get_captive_portal(Link *link, const char **ret) { |
262 | const char *dhcp4_cp = NULL, *dhcp6_cp = NULL, *ndisc_cp = NULL; | |
263 | int r; | |
264 | ||
265 | assert(link); | |
266 | ||
267 | if (!link->network) { | |
268 | *ret = NULL; | |
269 | return 0; | |
270 | } | |
271 | ||
272 | if (link->network->dhcp_use_captive_portal && link->dhcp_lease) { | |
273 | r = sd_dhcp_lease_get_captive_portal(link->dhcp_lease, &dhcp4_cp); | |
274 | if (r < 0 && r != -ENODATA) | |
275 | return r; | |
276 | } | |
277 | ||
278 | if (link->network->dhcp6_use_captive_portal && link->dhcp6_lease) { | |
279 | r = sd_dhcp6_lease_get_captive_portal(link->dhcp6_lease, &dhcp6_cp); | |
280 | if (r < 0 && r != -ENODATA) | |
281 | return r; | |
282 | } | |
283 | ||
52672db3 | 284 | if (link->network->ndisc_use_captive_portal) { |
64de00c4 YW |
285 | NDiscCaptivePortal *cp; |
286 | usec_t usec = 0; | |
287 | ||
288 | /* Use the captive portal with the longest lifetime. */ | |
289 | ||
290 | SET_FOREACH(cp, link->ndisc_captive_portals) { | |
291 | if (cp->lifetime_usec < usec) | |
292 | continue; | |
293 | ||
294 | ndisc_cp = cp->captive_portal; | |
295 | usec = cp->lifetime_usec; | |
296 | } | |
297 | ||
298 | if (set_size(link->ndisc_captive_portals) > 1) | |
299 | log_link_debug(link, "Multiple captive portals obtained by IPv6RA, using \"%s\" and ignoring others.", | |
300 | ndisc_cp); | |
301 | } | |
6341ea54 YW |
302 | |
303 | if (dhcp4_cp) { | |
304 | if (dhcp6_cp && !streq(dhcp4_cp, dhcp6_cp)) | |
305 | log_link_debug(link, "DHCPv6 captive portal (%s) does not match DHCPv4 (%s), ignoring DHCPv6 captive portal.", | |
306 | dhcp6_cp, dhcp4_cp); | |
307 | ||
308 | if (ndisc_cp && !streq(dhcp4_cp, ndisc_cp)) | |
309 | log_link_debug(link, "IPv6RA captive portal (%s) does not match DHCPv4 (%s), ignoring IPv6RA captive portal.", | |
310 | ndisc_cp, dhcp4_cp); | |
311 | ||
312 | *ret = dhcp4_cp; | |
313 | return 1; | |
314 | } | |
315 | ||
316 | if (dhcp6_cp) { | |
317 | if (ndisc_cp && !streq(dhcp6_cp, ndisc_cp)) | |
318 | log_link_debug(link, "IPv6RA captive portal (%s) does not match DHCPv6 (%s), ignoring IPv6RA captive portal.", | |
319 | ndisc_cp, dhcp6_cp); | |
320 | ||
321 | *ret = dhcp6_cp; | |
322 | return 1; | |
323 | } | |
324 | ||
325 | *ret = ndisc_cp; | |
326 | return !!ndisc_cp; | |
327 | } | |
328 | ||
ca5ad760 YW |
329 | int config_parse_dhcp( |
330 | const char* unit, | |
331 | const char *filename, | |
332 | unsigned line, | |
333 | const char *section, | |
334 | unsigned section_line, | |
335 | const char *lvalue, | |
336 | int ltype, | |
337 | const char *rvalue, | |
338 | void *data, | |
339 | void *userdata) { | |
340 | ||
2d792895 | 341 | AddressFamily *dhcp = data, s; |
ca5ad760 YW |
342 | |
343 | assert(filename); | |
344 | assert(lvalue); | |
345 | assert(rvalue); | |
346 | assert(data); | |
347 | ||
348 | /* Note that this is mostly like | |
2d792895 | 349 | * config_parse_address_family(), except that it |
ca5ad760 YW |
350 | * understands some old names for the enum values */ |
351 | ||
2d792895 | 352 | s = address_family_from_string(rvalue); |
ca5ad760 YW |
353 | if (s < 0) { |
354 | ||
355 | /* Previously, we had a slightly different enum here, | |
356 | * support its values for compatibility. */ | |
357 | ||
bde8467a YW |
358 | s = dhcp_deprecated_address_family_from_string(rvalue); |
359 | if (s < 0) { | |
360 | log_syntax(unit, LOG_WARNING, filename, line, s, | |
ca5ad760 YW |
361 | "Failed to parse DHCP option, ignoring: %s", rvalue); |
362 | return 0; | |
363 | } | |
364 | ||
365 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
366 | "DHCP=%s is deprecated, please use DHCP=%s instead.", | |
2d792895 | 367 | rvalue, address_family_to_string(s)); |
ca5ad760 YW |
368 | } |
369 | ||
370 | *dhcp = s; | |
371 | return 0; | |
372 | } | |
373 | ||
6f812d28 | 374 | int config_parse_dhcp_route_metric( |
bdad94d0 YW |
375 | const char* unit, |
376 | const char *filename, | |
377 | unsigned line, | |
378 | const char *section, | |
379 | unsigned section_line, | |
380 | const char *lvalue, | |
381 | int ltype, | |
382 | const char *rvalue, | |
383 | void *data, | |
384 | void *userdata) { | |
385 | ||
5b7f0aaf | 386 | Network *network = userdata; |
bdad94d0 YW |
387 | uint32_t metric; |
388 | int r; | |
389 | ||
390 | assert(filename); | |
391 | assert(lvalue); | |
6f812d28 | 392 | assert(IN_SET(ltype, AF_UNSPEC, AF_INET)); |
bdad94d0 YW |
393 | assert(rvalue); |
394 | assert(data); | |
395 | ||
396 | r = safe_atou32(rvalue, &metric); | |
397 | if (r < 0) { | |
d96edb2c | 398 | log_syntax(unit, LOG_WARNING, filename, line, r, |
bdad94d0 YW |
399 | "Failed to parse RouteMetric=%s, ignoring assignment: %m", rvalue); |
400 | return 0; | |
401 | } | |
402 | ||
89346ac6 | 403 | switch (ltype) { |
967e6a64 | 404 | case AF_INET: |
bdad94d0 YW |
405 | network->dhcp_route_metric = metric; |
406 | network->dhcp_route_metric_set = true; | |
967e6a64 | 407 | break; |
967e6a64 YW |
408 | case AF_UNSPEC: |
409 | /* For backward compatibility. */ | |
bdad94d0 YW |
410 | if (!network->dhcp_route_metric_set) |
411 | network->dhcp_route_metric = metric; | |
52672db3 YW |
412 | if (!network->ndisc_route_metric_set) { |
413 | network->ndisc_route_metric_high = metric; | |
414 | network->ndisc_route_metric_medium = metric; | |
415 | network->ndisc_route_metric_low = metric; | |
6f812d28 | 416 | } |
967e6a64 YW |
417 | break; |
418 | default: | |
419 | assert_not_reached(); | |
bdad94d0 YW |
420 | } |
421 | ||
422 | return 0; | |
423 | } | |
424 | ||
52672db3 | 425 | int config_parse_ndisc_route_metric( |
6f812d28 YW |
426 | const char *unit, |
427 | const char *filename, | |
428 | unsigned line, | |
429 | const char *section, | |
430 | unsigned section_line, | |
431 | const char *lvalue, | |
432 | int ltype, | |
433 | const char *rvalue, | |
434 | void *data, | |
435 | void *userdata) { | |
436 | ||
437 | Network *network = ASSERT_PTR(userdata); | |
438 | uint32_t metric_high, metric_medium, metric_low; | |
439 | int r, s, t; | |
440 | ||
441 | assert(filename); | |
442 | assert(rvalue); | |
443 | ||
444 | if (safe_atou32(rvalue, &metric_low) >= 0) | |
445 | metric_high = metric_medium = metric_low; | |
446 | else { | |
447 | _cleanup_free_ char *high = NULL, *medium = NULL, *low = NULL; | |
448 | const char *p = rvalue; | |
449 | ||
4f495126 | 450 | r = extract_many_words(&p, ":", EXTRACT_DONT_COALESCE_SEPARATORS, &high, &medium, &low); |
6f812d28 YW |
451 | if (r == -ENOMEM) |
452 | return log_oom(); | |
453 | if (r != 3 || !isempty(p)) { | |
454 | log_syntax(unit, LOG_WARNING, filename, line, r < 0 ? r : 0, | |
455 | "Failed to parse RouteTable=%s, ignoring assignment: %m", rvalue); | |
456 | return 0; | |
457 | } | |
458 | ||
459 | r = safe_atou32(high, &metric_high); | |
460 | s = safe_atou32(medium, &metric_medium); | |
461 | t = safe_atou32(low, &metric_low); | |
462 | if (r < 0 || s < 0 || t < 0) { | |
463 | log_syntax(unit, LOG_WARNING, filename, line, r < 0 ? r : s < 0 ? s : t, | |
464 | "Failed to parse RouteTable=%s, ignoring assignment: %m", rvalue); | |
465 | return 0; | |
466 | } | |
467 | ||
468 | if (metric_high >= metric_medium || metric_medium >= metric_low) { | |
469 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
470 | "Invalid RouteTable=%s, ignoring assignment: %m", rvalue); | |
471 | return 0; | |
472 | } | |
473 | } | |
474 | ||
52672db3 YW |
475 | network->ndisc_route_metric_high = metric_high; |
476 | network->ndisc_route_metric_medium = metric_medium; | |
477 | network->ndisc_route_metric_low = metric_low; | |
478 | network->ndisc_route_metric_set = true; | |
6f812d28 YW |
479 | |
480 | return 0; | |
481 | } | |
482 | ||
b90480c8 RP |
483 | int config_parse_dhcp_send_hostname( |
484 | const char* unit, | |
485 | const char *filename, | |
486 | unsigned line, | |
487 | const char *section, | |
488 | unsigned section_line, | |
489 | const char *lvalue, | |
490 | int ltype, | |
491 | const char *rvalue, | |
492 | void *data, | |
493 | void *userdata) { | |
494 | ||
495 | Network *network = userdata; | |
496 | int r; | |
497 | ||
498 | assert(filename); | |
499 | assert(lvalue); | |
500 | assert(IN_SET(ltype, AF_UNSPEC, AF_INET, AF_INET6)); | |
501 | assert(rvalue); | |
502 | assert(data); | |
503 | ||
504 | r = parse_boolean(rvalue); | |
505 | if (r < 0) { | |
506 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
507 | "Failed to parse SendHostname=%s, ignoring assignment: %m", rvalue); | |
508 | return 0; | |
509 | } | |
510 | ||
511 | switch (ltype) { | |
512 | case AF_INET: | |
513 | network->dhcp_send_hostname = r; | |
514 | network->dhcp_send_hostname_set = true; | |
515 | break; | |
516 | case AF_INET6: | |
517 | network->dhcp6_send_hostname = r; | |
518 | network->dhcp6_send_hostname_set = true; | |
519 | break; | |
520 | case AF_UNSPEC: | |
521 | /* For backward compatibility. */ | |
522 | if (!network->dhcp_send_hostname_set) | |
523 | network->dhcp_send_hostname = r; | |
524 | if (!network->dhcp6_send_hostname_set) | |
525 | network->dhcp6_send_hostname = r; | |
526 | break; | |
527 | default: | |
528 | assert_not_reached(); | |
529 | } | |
530 | ||
531 | return 0; | |
532 | } | |
4f7331a8 YW |
533 | int config_parse_dhcp_use_dns( |
534 | const char* unit, | |
535 | const char *filename, | |
536 | unsigned line, | |
537 | const char *section, | |
538 | unsigned section_line, | |
539 | const char *lvalue, | |
540 | int ltype, | |
541 | const char *rvalue, | |
542 | void *data, | |
543 | void *userdata) { | |
544 | ||
5b7f0aaf | 545 | Network *network = userdata; |
4f7331a8 YW |
546 | int r; |
547 | ||
548 | assert(filename); | |
549 | assert(lvalue); | |
967e6a64 | 550 | assert(IN_SET(ltype, AF_UNSPEC, AF_INET, AF_INET6)); |
4f7331a8 YW |
551 | assert(rvalue); |
552 | assert(data); | |
553 | ||
554 | r = parse_boolean(rvalue); | |
555 | if (r < 0) { | |
d96edb2c | 556 | log_syntax(unit, LOG_WARNING, filename, line, r, |
4f7331a8 YW |
557 | "Failed to parse UseDNS=%s, ignoring assignment: %m", rvalue); |
558 | return 0; | |
559 | } | |
560 | ||
89346ac6 | 561 | switch (ltype) { |
967e6a64 | 562 | case AF_INET: |
bdad94d0 YW |
563 | network->dhcp_use_dns = r; |
564 | network->dhcp_use_dns_set = true; | |
967e6a64 YW |
565 | break; |
566 | case AF_INET6: | |
bdad94d0 YW |
567 | network->dhcp6_use_dns = r; |
568 | network->dhcp6_use_dns_set = true; | |
967e6a64 YW |
569 | break; |
570 | case AF_UNSPEC: | |
571 | /* For backward compatibility. */ | |
bdad94d0 YW |
572 | if (!network->dhcp_use_dns_set) |
573 | network->dhcp_use_dns = r; | |
574 | if (!network->dhcp6_use_dns_set) | |
575 | network->dhcp6_use_dns = r; | |
967e6a64 YW |
576 | break; |
577 | default: | |
578 | assert_not_reached(); | |
bdad94d0 | 579 | } |
4f7331a8 YW |
580 | |
581 | return 0; | |
582 | } | |
583 | ||
f225a338 YW |
584 | int config_parse_dhcp_use_domains( |
585 | const char* unit, | |
586 | const char *filename, | |
587 | unsigned line, | |
588 | const char *section, | |
589 | unsigned section_line, | |
590 | const char *lvalue, | |
591 | int ltype, | |
592 | const char *rvalue, | |
593 | void *data, | |
594 | void *userdata) { | |
595 | ||
596 | Network *network = userdata; | |
597 | DHCPUseDomains d; | |
598 | ||
599 | assert(filename); | |
600 | assert(lvalue); | |
967e6a64 | 601 | assert(IN_SET(ltype, AF_UNSPEC, AF_INET, AF_INET6)); |
f225a338 YW |
602 | assert(rvalue); |
603 | assert(data); | |
604 | ||
605 | d = dhcp_use_domains_from_string(rvalue); | |
606 | if (d < 0) { | |
607 | log_syntax(unit, LOG_WARNING, filename, line, d, | |
608 | "Failed to parse %s=%s, ignoring assignment: %m", lvalue, rvalue); | |
609 | return 0; | |
610 | } | |
611 | ||
89346ac6 | 612 | switch (ltype) { |
967e6a64 | 613 | case AF_INET: |
f225a338 YW |
614 | network->dhcp_use_domains = d; |
615 | network->dhcp_use_domains_set = true; | |
967e6a64 YW |
616 | break; |
617 | case AF_INET6: | |
f225a338 YW |
618 | network->dhcp6_use_domains = d; |
619 | network->dhcp6_use_domains_set = true; | |
967e6a64 YW |
620 | break; |
621 | case AF_UNSPEC: | |
622 | /* For backward compatibility. */ | |
f225a338 YW |
623 | if (!network->dhcp_use_domains_set) |
624 | network->dhcp_use_domains = d; | |
625 | if (!network->dhcp6_use_domains_set) | |
626 | network->dhcp6_use_domains = d; | |
967e6a64 YW |
627 | break; |
628 | default: | |
629 | assert_not_reached(); | |
f225a338 YW |
630 | } |
631 | ||
632 | return 0; | |
633 | } | |
634 | ||
fb573007 HL |
635 | DEFINE_CONFIG_PARSE_ENUM(config_parse_default_dhcp_use_domains, dhcp_use_domains, DHCPUseDomains, "Failed to parse UseDomains=") |
636 | ||
4f7331a8 YW |
637 | int config_parse_dhcp_use_ntp( |
638 | const char* unit, | |
639 | const char *filename, | |
640 | unsigned line, | |
641 | const char *section, | |
642 | unsigned section_line, | |
643 | const char *lvalue, | |
644 | int ltype, | |
645 | const char *rvalue, | |
646 | void *data, | |
647 | void *userdata) { | |
648 | ||
5b7f0aaf | 649 | Network *network = userdata; |
4f7331a8 YW |
650 | int r; |
651 | ||
652 | assert(filename); | |
653 | assert(lvalue); | |
967e6a64 | 654 | assert(IN_SET(ltype, AF_UNSPEC, AF_INET, AF_INET6)); |
4f7331a8 YW |
655 | assert(rvalue); |
656 | assert(data); | |
657 | ||
658 | r = parse_boolean(rvalue); | |
659 | if (r < 0) { | |
d96edb2c | 660 | log_syntax(unit, LOG_WARNING, filename, line, r, |
4f7331a8 YW |
661 | "Failed to parse UseNTP=%s, ignoring assignment: %m", rvalue); |
662 | return 0; | |
663 | } | |
664 | ||
89346ac6 | 665 | switch (ltype) { |
967e6a64 | 666 | case AF_INET: |
bdad94d0 YW |
667 | network->dhcp_use_ntp = r; |
668 | network->dhcp_use_ntp_set = true; | |
967e6a64 YW |
669 | break; |
670 | case AF_INET6: | |
bdad94d0 YW |
671 | network->dhcp6_use_ntp = r; |
672 | network->dhcp6_use_ntp_set = true; | |
967e6a64 YW |
673 | break; |
674 | case AF_UNSPEC: | |
675 | /* For backward compatibility. */ | |
bdad94d0 YW |
676 | if (!network->dhcp_use_ntp_set) |
677 | network->dhcp_use_ntp = r; | |
678 | if (!network->dhcp6_use_ntp_set) | |
679 | network->dhcp6_use_ntp = r; | |
967e6a64 YW |
680 | break; |
681 | default: | |
682 | assert_not_reached(); | |
bdad94d0 | 683 | } |
4f7331a8 YW |
684 | |
685 | return 0; | |
686 | } | |
687 | ||
e47bcb7d | 688 | int config_parse_dhcp_or_ra_route_table( |
ca5ad760 YW |
689 | const char *unit, |
690 | const char *filename, | |
691 | unsigned line, | |
692 | const char *section, | |
693 | unsigned section_line, | |
694 | const char *lvalue, | |
695 | int ltype, | |
696 | const char *rvalue, | |
697 | void *data, | |
698 | void *userdata) { | |
699 | ||
99534007 | 700 | Network *network = ASSERT_PTR(userdata); |
ca5ad760 YW |
701 | uint32_t rt; |
702 | int r; | |
703 | ||
704 | assert(filename); | |
705 | assert(lvalue); | |
2d00239c | 706 | assert(IN_SET(ltype, AF_INET, AF_INET6)); |
ca5ad760 | 707 | assert(rvalue); |
ca5ad760 | 708 | |
7db98bc9 | 709 | r = manager_get_route_table_from_string(network->manager, rvalue, &rt); |
ca5ad760 | 710 | if (r < 0) { |
d96edb2c | 711 | log_syntax(unit, LOG_WARNING, filename, line, r, |
ca5ad760 YW |
712 | "Failed to parse RouteTable=%s, ignoring assignment: %m", rvalue); |
713 | return 0; | |
714 | } | |
715 | ||
89346ac6 | 716 | switch (ltype) { |
2d00239c | 717 | case AF_INET: |
ca5ad760 YW |
718 | network->dhcp_route_table = rt; |
719 | network->dhcp_route_table_set = true; | |
e47bcb7d | 720 | break; |
2d00239c | 721 | case AF_INET6: |
52672db3 YW |
722 | network->ndisc_route_table = rt; |
723 | network->ndisc_route_table_set = true; | |
e47bcb7d YW |
724 | break; |
725 | default: | |
726 | assert_not_reached(); | |
ca5ad760 YW |
727 | } |
728 | ||
729 | return 0; | |
730 | } | |
731 | ||
63481576 YW |
732 | int config_parse_iaid( |
733 | const char *unit, | |
734 | const char *filename, | |
735 | unsigned line, | |
736 | const char *section, | |
737 | unsigned section_line, | |
738 | const char *lvalue, | |
739 | int ltype, | |
740 | const char *rvalue, | |
741 | void *data, | |
742 | void *userdata) { | |
4e26a5ba | 743 | |
99534007 | 744 | Network *network = ASSERT_PTR(userdata); |
ca5ad760 YW |
745 | uint32_t iaid; |
746 | int r; | |
747 | ||
748 | assert(filename); | |
749 | assert(lvalue); | |
750 | assert(rvalue); | |
4e26a5ba | 751 | assert(IN_SET(ltype, AF_INET, AF_INET6)); |
ca5ad760 YW |
752 | |
753 | r = safe_atou32(rvalue, &iaid); | |
754 | if (r < 0) { | |
d96edb2c | 755 | log_syntax(unit, LOG_WARNING, filename, line, r, |
ca5ad760 YW |
756 | "Unable to read IAID, ignoring assignment: %s", rvalue); |
757 | return 0; | |
758 | } | |
759 | ||
4e26a5ba YW |
760 | if (ltype == AF_INET) { |
761 | network->dhcp_iaid = iaid; | |
762 | network->dhcp_iaid_set = true; | |
763 | if (!network->dhcp6_iaid_set_explicitly) { | |
87160186 YW |
764 | /* Backward compatibility. Previously, IAID is shared by DHCPv4 and DHCPv6. |
765 | * If DHCPv6 IAID is not specified explicitly, then use DHCPv4 IAID for DHCPv6. */ | |
4e26a5ba YW |
766 | network->dhcp6_iaid = iaid; |
767 | network->dhcp6_iaid_set = true; | |
768 | } | |
769 | } else { | |
770 | assert(ltype == AF_INET6); | |
771 | network->dhcp6_iaid = iaid; | |
772 | network->dhcp6_iaid_set = true; | |
773 | network->dhcp6_iaid_set_explicitly = true; | |
774 | } | |
ca5ad760 YW |
775 | |
776 | return 0; | |
777 | } | |
778 | ||
6fda02e1 | 779 | int config_parse_dhcp_user_or_vendor_class( |
3175a8c2 SS |
780 | const char *unit, |
781 | const char *filename, | |
782 | unsigned line, | |
783 | const char *section, | |
784 | unsigned section_line, | |
785 | const char *lvalue, | |
786 | int ltype, | |
787 | const char *rvalue, | |
788 | void *data, | |
789 | void *userdata) { | |
790 | ||
99534007 | 791 | char ***l = ASSERT_PTR(data); |
f37f2a6b SS |
792 | int r; |
793 | ||
f37f2a6b SS |
794 | assert(lvalue); |
795 | assert(rvalue); | |
6fda02e1 | 796 | assert(IN_SET(ltype, AF_INET, AF_INET6)); |
f37f2a6b SS |
797 | |
798 | if (isempty(rvalue)) { | |
799 | *l = strv_free(*l); | |
800 | return 0; | |
801 | } | |
802 | ||
d96edb2c | 803 | for (const char *p = rvalue;;) { |
f37f2a6b | 804 | _cleanup_free_ char *w = NULL; |
b79951fa | 805 | size_t len; |
f37f2a6b | 806 | |
d96edb2c | 807 | r = extract_first_word(&p, &w, NULL, EXTRACT_CUNESCAPE|EXTRACT_UNQUOTE); |
f37f2a6b SS |
808 | if (r == -ENOMEM) |
809 | return log_oom(); | |
810 | if (r < 0) { | |
d96edb2c | 811 | log_syntax(unit, LOG_WARNING, filename, line, r, |
f37f2a6b | 812 | "Failed to split user classes option, ignoring: %s", rvalue); |
d96edb2c | 813 | return 0; |
f37f2a6b SS |
814 | } |
815 | if (r == 0) | |
d96edb2c | 816 | return 0; |
f37f2a6b | 817 | |
b79951fa | 818 | len = strlen(w); |
f37f2a6b | 819 | if (ltype == AF_INET) { |
b79951fa | 820 | if (len > UINT8_MAX || len == 0) { |
d96edb2c | 821 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
1d3a473b | 822 | "%s length is not in the range 1…255, ignoring.", w); |
f37f2a6b SS |
823 | continue; |
824 | } | |
825 | } else { | |
b79951fa | 826 | if (len > UINT16_MAX || len == 0) { |
d96edb2c | 827 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
1d3a473b | 828 | "%s length is not in the range 1…65535, ignoring.", w); |
f37f2a6b SS |
829 | continue; |
830 | } | |
831 | } | |
832 | ||
b79951fa | 833 | r = strv_consume(l, TAKE_PTR(w)); |
f37f2a6b SS |
834 | if (r < 0) |
835 | return log_oom(); | |
f37f2a6b | 836 | } |
f37f2a6b SS |
837 | } |
838 | ||
0e96961d YW |
839 | int config_parse_dhcp_send_option( |
840 | const char *unit, | |
841 | const char *filename, | |
842 | unsigned line, | |
843 | const char *section, | |
844 | unsigned section_line, | |
845 | const char *lvalue, | |
846 | int ltype, | |
847 | const char *rvalue, | |
848 | void *data, | |
849 | void *userdata) { | |
850 | ||
d7ac0952 FS |
851 | _cleanup_(sd_dhcp_option_unrefp) sd_dhcp_option *opt4 = NULL; |
852 | _cleanup_(sd_dhcp6_option_unrefp) sd_dhcp6_option *opt6 = NULL; | |
853 | _unused_ _cleanup_(sd_dhcp_option_unrefp) sd_dhcp_option *old4 = NULL; | |
854 | _unused_ _cleanup_(sd_dhcp6_option_unrefp) sd_dhcp6_option *old6 = NULL; | |
b4ccc5de | 855 | uint32_t uint32_data, enterprise_identifier = 0; |
0e96961d | 856 | _cleanup_free_ char *word = NULL, *q = NULL; |
99534007 | 857 | OrderedHashmap **options = ASSERT_PTR(data); |
b4ccc5de | 858 | uint16_t u16, uint16_data; |
0e96961d YW |
859 | union in_addr_union addr; |
860 | DHCPOptionDataType type; | |
e7d5fe17 | 861 | uint8_t u8, uint8_data; |
0e96961d YW |
862 | const void *udata; |
863 | const char *p; | |
864 | ssize_t sz; | |
865 | int r; | |
866 | ||
867 | assert(filename); | |
868 | assert(lvalue); | |
869 | assert(rvalue); | |
0e96961d YW |
870 | |
871 | if (isempty(rvalue)) { | |
872 | *options = ordered_hashmap_free(*options); | |
873 | return 0; | |
874 | } | |
875 | ||
876 | p = rvalue; | |
b4ccc5de SS |
877 | if (ltype == AF_INET6 && streq(lvalue, "SendVendorOption")) { |
878 | r = extract_first_word(&p, &word, ":", 0); | |
879 | if (r == -ENOMEM) | |
880 | return log_oom(); | |
881 | if (r <= 0 || isempty(p)) { | |
d96edb2c | 882 | log_syntax(unit, LOG_WARNING, filename, line, r, |
b4ccc5de SS |
883 | "Invalid DHCP option, ignoring assignment: %s", rvalue); |
884 | return 0; | |
885 | } | |
886 | ||
887 | r = safe_atou32(word, &enterprise_identifier); | |
888 | if (r < 0) { | |
d96edb2c | 889 | log_syntax(unit, LOG_WARNING, filename, line, r, |
b4ccc5de SS |
890 | "Failed to parse DHCPv6 enterprise identifier data, ignoring assignment: %s", p); |
891 | return 0; | |
892 | } | |
893 | word = mfree(word); | |
894 | } | |
895 | ||
0e96961d YW |
896 | r = extract_first_word(&p, &word, ":", 0); |
897 | if (r == -ENOMEM) | |
898 | return log_oom(); | |
b4ccc5de | 899 | if (r <= 0 || isempty(p)) { |
d96edb2c | 900 | log_syntax(unit, LOG_WARNING, filename, line, r, |
0e96961d YW |
901 | "Invalid DHCP option, ignoring assignment: %s", rvalue); |
902 | return 0; | |
903 | } | |
904 | ||
e7d5fe17 AD |
905 | if (ltype == AF_INET6) { |
906 | r = safe_atou16(word, &u16); | |
907 | if (r < 0) { | |
d96edb2c | 908 | log_syntax(unit, LOG_WARNING, filename, line, r, |
e7d5fe17 AD |
909 | "Invalid DHCP option, ignoring assignment: %s", rvalue); |
910 | return 0; | |
911 | } | |
f37f2a6b | 912 | if (u16 < 1 || u16 >= UINT16_MAX) { |
d96edb2c | 913 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
e7d5fe17 AD |
914 | "Invalid DHCP option, valid range is 1-65535, ignoring assignment: %s", rvalue); |
915 | return 0; | |
916 | } | |
917 | } else { | |
918 | r = safe_atou8(word, &u8); | |
919 | if (r < 0) { | |
d96edb2c | 920 | log_syntax(unit, LOG_WARNING, filename, line, r, |
e7d5fe17 AD |
921 | "Invalid DHCP option, ignoring assignment: %s", rvalue); |
922 | return 0; | |
923 | } | |
ffed0205 | 924 | if (u8 < 1 || u8 >= UINT8_MAX) { |
d96edb2c | 925 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
e7d5fe17 AD |
926 | "Invalid DHCP option, valid range is 1-254, ignoring assignment: %s", rvalue); |
927 | return 0; | |
928 | } | |
0e96961d YW |
929 | } |
930 | ||
3db7d5d2 | 931 | word = mfree(word); |
0e96961d YW |
932 | r = extract_first_word(&p, &word, ":", 0); |
933 | if (r == -ENOMEM) | |
934 | return log_oom(); | |
1eb73422 | 935 | if (r <= 0 || isempty(p)) { |
d96edb2c | 936 | log_syntax(unit, LOG_WARNING, filename, line, r, |
0e96961d YW |
937 | "Invalid DHCP option, ignoring assignment: %s", rvalue); |
938 | return 0; | |
939 | } | |
940 | ||
941 | type = dhcp_option_data_type_from_string(word); | |
942 | if (type < 0) { | |
b98680b2 | 943 | log_syntax(unit, LOG_WARNING, filename, line, type, |
0e96961d YW |
944 | "Invalid DHCP option data type, ignoring assignment: %s", p); |
945 | return 0; | |
946 | } | |
947 | ||
89346ac6 | 948 | switch (type) { |
0e96961d YW |
949 | case DHCP_OPTION_DATA_UINT8:{ |
950 | r = safe_atou8(p, &uint8_data); | |
951 | if (r < 0) { | |
d96edb2c | 952 | log_syntax(unit, LOG_WARNING, filename, line, r, |
e7d5fe17 | 953 | "Failed to parse DHCP uint8 data, ignoring assignment: %s", p); |
0e96961d YW |
954 | return 0; |
955 | } | |
956 | ||
957 | udata = &uint8_data; | |
958 | sz = sizeof(uint8_t); | |
959 | break; | |
960 | } | |
961 | case DHCP_OPTION_DATA_UINT16:{ | |
176321cb SS |
962 | uint16_t k; |
963 | ||
964 | r = safe_atou16(p, &k); | |
0e96961d | 965 | if (r < 0) { |
d96edb2c | 966 | log_syntax(unit, LOG_WARNING, filename, line, r, |
e7d5fe17 | 967 | "Failed to parse DHCP uint16 data, ignoring assignment: %s", p); |
0e96961d YW |
968 | return 0; |
969 | } | |
970 | ||
176321cb | 971 | uint16_data = htobe16(k); |
0e96961d YW |
972 | udata = &uint16_data; |
973 | sz = sizeof(uint16_t); | |
974 | break; | |
975 | } | |
976 | case DHCP_OPTION_DATA_UINT32: { | |
176321cb SS |
977 | uint32_t k; |
978 | ||
979 | r = safe_atou32(p, &k); | |
0e96961d | 980 | if (r < 0) { |
d96edb2c | 981 | log_syntax(unit, LOG_WARNING, filename, line, r, |
e7d5fe17 | 982 | "Failed to parse DHCP uint32 data, ignoring assignment: %s", p); |
0e96961d YW |
983 | return 0; |
984 | } | |
985 | ||
176321cb | 986 | uint32_data = htobe32(k); |
0e96961d YW |
987 | udata = &uint32_data; |
988 | sz = sizeof(uint32_t); | |
989 | ||
990 | break; | |
991 | } | |
992 | case DHCP_OPTION_DATA_IPV4ADDRESS: { | |
993 | r = in_addr_from_string(AF_INET, p, &addr); | |
994 | if (r < 0) { | |
d96edb2c | 995 | log_syntax(unit, LOG_WARNING, filename, line, r, |
e7d5fe17 | 996 | "Failed to parse DHCP ipv4address data, ignoring assignment: %s", p); |
0e96961d YW |
997 | return 0; |
998 | } | |
999 | ||
1000 | udata = &addr.in; | |
1001 | sz = sizeof(addr.in.s_addr); | |
1002 | break; | |
1003 | } | |
e7d5fe17 AD |
1004 | case DHCP_OPTION_DATA_IPV6ADDRESS: { |
1005 | r = in_addr_from_string(AF_INET6, p, &addr); | |
1006 | if (r < 0) { | |
d96edb2c | 1007 | log_syntax(unit, LOG_WARNING, filename, line, r, |
e7d5fe17 AD |
1008 | "Failed to parse DHCP ipv6address data, ignoring assignment: %s", p); |
1009 | return 0; | |
1010 | } | |
1011 | ||
1012 | udata = &addr.in6; | |
1013 | sz = sizeof(addr.in6.s6_addr); | |
1014 | break; | |
1015 | } | |
0e96961d | 1016 | case DHCP_OPTION_DATA_STRING: |
732e3a61 | 1017 | sz = cunescape(p, UNESCAPE_ACCEPT_NUL, &q); |
fbf946ce | 1018 | if (sz < 0) { |
d96edb2c | 1019 | log_syntax(unit, LOG_WARNING, filename, line, sz, |
e7d5fe17 | 1020 | "Failed to decode DHCP option data, ignoring assignment: %s", p); |
fbf946ce YW |
1021 | return 0; |
1022 | } | |
0e96961d YW |
1023 | |
1024 | udata = q; | |
1025 | break; | |
1026 | default: | |
1027 | return -EINVAL; | |
1028 | } | |
1029 | ||
e7d5fe17 | 1030 | if (ltype == AF_INET6) { |
b4ccc5de | 1031 | r = sd_dhcp6_option_new(u16, udata, sz, enterprise_identifier, &opt6); |
e7d5fe17 | 1032 | if (r < 0) { |
d96edb2c | 1033 | log_syntax(unit, LOG_WARNING, filename, line, r, |
e7d5fe17 AD |
1034 | "Failed to store DHCP option '%s', ignoring assignment: %m", rvalue); |
1035 | return 0; | |
1036 | } | |
0e96961d | 1037 | |
e7d5fe17 AD |
1038 | r = ordered_hashmap_ensure_allocated(options, &dhcp6_option_hash_ops); |
1039 | if (r < 0) | |
1040 | return log_oom(); | |
0e96961d | 1041 | |
e7d5fe17 AD |
1042 | /* Overwrite existing option */ |
1043 | old6 = ordered_hashmap_get(*options, UINT_TO_PTR(u16)); | |
1044 | r = ordered_hashmap_replace(*options, UINT_TO_PTR(u16), opt6); | |
1045 | if (r < 0) { | |
d96edb2c | 1046 | log_syntax(unit, LOG_WARNING, filename, line, r, |
e7d5fe17 AD |
1047 | "Failed to store DHCP option '%s', ignoring assignment: %m", rvalue); |
1048 | return 0; | |
1049 | } | |
1050 | TAKE_PTR(opt6); | |
1051 | } else { | |
1052 | r = sd_dhcp_option_new(u8, udata, sz, &opt4); | |
1053 | if (r < 0) { | |
d96edb2c | 1054 | log_syntax(unit, LOG_WARNING, filename, line, r, |
e7d5fe17 AD |
1055 | "Failed to store DHCP option '%s', ignoring assignment: %m", rvalue); |
1056 | return 0; | |
1057 | } | |
0e96961d | 1058 | |
e7d5fe17 AD |
1059 | r = ordered_hashmap_ensure_allocated(options, &dhcp_option_hash_ops); |
1060 | if (r < 0) | |
1061 | return log_oom(); | |
1062 | ||
1063 | /* Overwrite existing option */ | |
1064 | old4 = ordered_hashmap_get(*options, UINT_TO_PTR(u8)); | |
1065 | r = ordered_hashmap_replace(*options, UINT_TO_PTR(u8), opt4); | |
1066 | if (r < 0) { | |
d96edb2c | 1067 | log_syntax(unit, LOG_WARNING, filename, line, r, |
e7d5fe17 AD |
1068 | "Failed to store DHCP option '%s', ignoring assignment: %m", rvalue); |
1069 | return 0; | |
1070 | } | |
1071 | TAKE_PTR(opt4); | |
1072 | } | |
0e96961d YW |
1073 | return 0; |
1074 | } | |
1075 | ||
35f6a5cb SS |
1076 | int config_parse_dhcp_request_options( |
1077 | const char *unit, | |
1078 | const char *filename, | |
1079 | unsigned line, | |
1080 | const char *section, | |
1081 | unsigned section_line, | |
1082 | const char *lvalue, | |
1083 | int ltype, | |
1084 | const char *rvalue, | |
1085 | void *data, | |
1086 | void *userdata) { | |
1087 | ||
5b7f0aaf | 1088 | Network *network = userdata; |
35f6a5cb SS |
1089 | int r; |
1090 | ||
1091 | assert(filename); | |
1092 | assert(lvalue); | |
1093 | assert(rvalue); | |
1094 | assert(data); | |
1095 | ||
1096 | if (isempty(rvalue)) { | |
1097 | if (ltype == AF_INET) | |
1098 | network->dhcp_request_options = set_free(network->dhcp_request_options); | |
1099 | else | |
1100 | network->dhcp6_request_options = set_free(network->dhcp6_request_options); | |
1101 | ||
1102 | return 0; | |
1103 | } | |
1104 | ||
cda7fc8d | 1105 | for (const char *p = rvalue;;) { |
35f6a5cb SS |
1106 | _cleanup_free_ char *n = NULL; |
1107 | uint32_t i; | |
1108 | ||
1109 | r = extract_first_word(&p, &n, NULL, 0); | |
d96edb2c YW |
1110 | if (r == -ENOMEM) |
1111 | return log_oom(); | |
35f6a5cb | 1112 | if (r < 0) { |
d96edb2c | 1113 | log_syntax(unit, LOG_WARNING, filename, line, r, |
35f6a5cb SS |
1114 | "Failed to parse DHCP request option, ignoring assignment: %s", |
1115 | rvalue); | |
1116 | return 0; | |
1117 | } | |
1118 | if (r == 0) | |
1119 | return 0; | |
1120 | ||
1121 | r = safe_atou32(n, &i); | |
1122 | if (r < 0) { | |
d96edb2c | 1123 | log_syntax(unit, LOG_WARNING, filename, line, r, |
35f6a5cb SS |
1124 | "DHCP request option is invalid, ignoring assignment: %s", n); |
1125 | continue; | |
1126 | } | |
1127 | ||
ffed0205 | 1128 | if (i < 1 || i >= UINT8_MAX) { |
d96edb2c | 1129 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
35f6a5cb SS |
1130 | "DHCP request option is invalid, valid range is 1-254, ignoring assignment: %s", n); |
1131 | continue; | |
1132 | } | |
1133 | ||
de7fef4b ZJS |
1134 | r = set_ensure_put(ltype == AF_INET ? &network->dhcp_request_options : &network->dhcp6_request_options, |
1135 | NULL, UINT32_TO_PTR(i)); | |
35f6a5cb | 1136 | if (r < 0) |
d96edb2c | 1137 | log_syntax(unit, LOG_WARNING, filename, line, r, |
35f6a5cb SS |
1138 | "Failed to store DHCP request option '%s', ignoring assignment: %m", n); |
1139 | } | |
35f6a5cb SS |
1140 | } |
1141 | ||
ca5ad760 YW |
1142 | static const char* const dhcp_use_domains_table[_DHCP_USE_DOMAINS_MAX] = { |
1143 | [DHCP_USE_DOMAINS_NO] = "no", | |
1144 | [DHCP_USE_DOMAINS_ROUTE] = "route", | |
1145 | [DHCP_USE_DOMAINS_YES] = "yes", | |
1146 | }; | |
1147 | ||
1148 | DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(dhcp_use_domains, DHCPUseDomains, DHCP_USE_DOMAINS_YES); | |
2e5580a8 YW |
1149 | |
1150 | static const char * const dhcp_option_data_type_table[_DHCP_OPTION_DATA_MAX] = { | |
1151 | [DHCP_OPTION_DATA_UINT8] = "uint8", | |
1152 | [DHCP_OPTION_DATA_UINT16] = "uint16", | |
1153 | [DHCP_OPTION_DATA_UINT32] = "uint32", | |
1154 | [DHCP_OPTION_DATA_STRING] = "string", | |
1155 | [DHCP_OPTION_DATA_IPV4ADDRESS] = "ipv4address", | |
e7d5fe17 | 1156 | [DHCP_OPTION_DATA_IPV6ADDRESS] = "ipv6address", |
2e5580a8 YW |
1157 | }; |
1158 | ||
1159 | DEFINE_STRING_TABLE_LOOKUP(dhcp_option_data_type, DHCPOptionDataType); | |
cde74a65 YW |
1160 | |
1161 | static const char* const duid_type_table[_DUID_TYPE_MAX] = { | |
6ed69be9 YW |
1162 | [DUID_TYPE_LLT] = "link-layer-time", |
1163 | [DUID_TYPE_EN] = "vendor", | |
1164 | [DUID_TYPE_LL] = "link-layer", | |
1165 | [DUID_TYPE_UUID] = "uuid", | |
cde74a65 YW |
1166 | }; |
1167 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(duid_type, DUIDType); | |
1168 | ||
1169 | int config_parse_duid_type( | |
1170 | const char *unit, | |
1171 | const char *filename, | |
1172 | unsigned line, | |
1173 | const char *section, | |
1174 | unsigned section_line, | |
1175 | const char *lvalue, | |
1176 | int ltype, | |
1177 | const char *rvalue, | |
1178 | void *data, | |
1179 | void *userdata) { | |
1180 | ||
1181 | _cleanup_free_ char *type_string = NULL; | |
99534007 | 1182 | const char *p = ASSERT_PTR(rvalue); |
4e26a5ba | 1183 | bool force = ltype; |
99534007 | 1184 | DUID *duid = ASSERT_PTR(data); |
cde74a65 YW |
1185 | DUIDType type; |
1186 | int r; | |
1187 | ||
1188 | assert(filename); | |
1189 | assert(lvalue); | |
cde74a65 | 1190 | |
4e26a5ba YW |
1191 | if (!force && duid->set) |
1192 | return 0; | |
1193 | ||
cde74a65 YW |
1194 | r = extract_first_word(&p, &type_string, ":", 0); |
1195 | if (r == -ENOMEM) | |
1196 | return log_oom(); | |
1197 | if (r < 0) { | |
1198 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1199 | "Invalid syntax, ignoring: %s", rvalue); | |
1200 | return 0; | |
1201 | } | |
1202 | if (r == 0) { | |
1203 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
1204 | "Failed to extract DUID type from '%s', ignoring.", rvalue); | |
1205 | return 0; | |
1206 | } | |
1207 | ||
1208 | type = duid_type_from_string(type_string); | |
1209 | if (type < 0) { | |
80500bb5 YW |
1210 | uint16_t t; |
1211 | ||
1212 | r = safe_atou16(type_string, &t); | |
1213 | if (r < 0) { | |
1214 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1215 | "Failed to parse DUID type '%s', ignoring.", type_string); | |
1216 | return 0; | |
1217 | } | |
1218 | ||
1219 | type = t; | |
1220 | assert(type == t); /* Check if type can store uint16_t. */ | |
cde74a65 YW |
1221 | } |
1222 | ||
1223 | if (!isempty(p)) { | |
1224 | usec_t u; | |
1225 | ||
1226 | if (type != DUID_TYPE_LLT) { | |
1227 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1228 | "Invalid syntax, ignoring: %s", rvalue); | |
1229 | return 0; | |
1230 | } | |
1231 | ||
1232 | r = parse_timestamp(p, &u); | |
1233 | if (r < 0) { | |
1234 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1235 | "Failed to parse timestamp, ignoring: %s", p); | |
1236 | return 0; | |
1237 | } | |
1238 | ||
1239 | duid->llt_time = u; | |
1240 | } | |
1241 | ||
1242 | duid->type = type; | |
4e26a5ba | 1243 | duid->set = force; |
cde74a65 YW |
1244 | |
1245 | return 0; | |
1246 | } | |
1247 | ||
4e26a5ba YW |
1248 | int config_parse_manager_duid_type( |
1249 | const char *unit, | |
1250 | const char *filename, | |
1251 | unsigned line, | |
1252 | const char *section, | |
1253 | unsigned section_line, | |
1254 | const char *lvalue, | |
1255 | int ltype, | |
1256 | const char *rvalue, | |
1257 | void *data, | |
1258 | void *userdata) { | |
1259 | ||
99534007 | 1260 | Manager *manager = ASSERT_PTR(userdata); |
4e26a5ba YW |
1261 | int r; |
1262 | ||
87160186 | 1263 | /* For backward compatibility. Setting both DHCPv4 and DHCPv6 DUID if they are not specified explicitly. */ |
4e26a5ba YW |
1264 | |
1265 | r = config_parse_duid_type(unit, filename, line, section, section_line, lvalue, false, rvalue, &manager->dhcp_duid, manager); | |
1266 | if (r < 0) | |
1267 | return r; | |
1268 | ||
1269 | return config_parse_duid_type(unit, filename, line, section, section_line, lvalue, false, rvalue, &manager->dhcp6_duid, manager); | |
1270 | } | |
1271 | ||
1272 | int config_parse_network_duid_type( | |
1273 | const char *unit, | |
1274 | const char *filename, | |
1275 | unsigned line, | |
1276 | const char *section, | |
1277 | unsigned section_line, | |
1278 | const char *lvalue, | |
1279 | int ltype, | |
1280 | const char *rvalue, | |
1281 | void *data, | |
1282 | void *userdata) { | |
1283 | ||
99534007 | 1284 | Network *network = ASSERT_PTR(userdata); |
4e26a5ba YW |
1285 | int r; |
1286 | ||
4e26a5ba YW |
1287 | r = config_parse_duid_type(unit, filename, line, section, section_line, lvalue, true, rvalue, &network->dhcp_duid, network); |
1288 | if (r < 0) | |
1289 | return r; | |
1290 | ||
87160186 | 1291 | /* For backward compatibility, also set DHCPv6 DUID if not specified explicitly. */ |
4e26a5ba YW |
1292 | return config_parse_duid_type(unit, filename, line, section, section_line, lvalue, false, rvalue, &network->dhcp6_duid, network); |
1293 | } | |
1294 | ||
cde74a65 YW |
1295 | int config_parse_duid_rawdata( |
1296 | const char *unit, | |
1297 | const char *filename, | |
1298 | unsigned line, | |
1299 | const char *section, | |
1300 | unsigned section_line, | |
1301 | const char *lvalue, | |
1302 | int ltype, | |
1303 | const char *rvalue, | |
1304 | void *data, | |
1305 | void *userdata) { | |
1306 | ||
92914960 | 1307 | uint8_t raw_data[MAX_DUID_DATA_LEN]; |
cde74a65 | 1308 | unsigned count = 0; |
4e26a5ba | 1309 | bool force = ltype; |
99534007 | 1310 | DUID *duid = ASSERT_PTR(data); |
cde74a65 YW |
1311 | |
1312 | assert(filename); | |
1313 | assert(lvalue); | |
1314 | assert(rvalue); | |
4e26a5ba YW |
1315 | |
1316 | if (!force && duid->set) | |
1317 | return 0; | |
cde74a65 YW |
1318 | |
1319 | /* RawData contains DUID in format "NN:NN:NN..." */ | |
1320 | for (const char *p = rvalue;;) { | |
1321 | int n1, n2, len, r; | |
1322 | uint32_t byte; | |
1323 | _cleanup_free_ char *cbyte = NULL; | |
1324 | ||
1325 | r = extract_first_word(&p, &cbyte, ":", 0); | |
1326 | if (r == -ENOMEM) | |
1327 | return log_oom(); | |
1328 | if (r < 0) { | |
1329 | log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to read DUID, ignoring assignment: %s.", rvalue); | |
1330 | return 0; | |
1331 | } | |
1332 | if (r == 0) | |
1333 | break; | |
1334 | ||
92914960 | 1335 | if (count >= MAX_DUID_DATA_LEN) { |
cde74a65 YW |
1336 | log_syntax(unit, LOG_WARNING, filename, line, 0, "Max DUID length exceeded, ignoring assignment: %s.", rvalue); |
1337 | return 0; | |
1338 | } | |
1339 | ||
1340 | len = strlen(cbyte); | |
1341 | if (!IN_SET(len, 1, 2)) { | |
1342 | log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid length - DUID byte: %s, ignoring assignment: %s.", cbyte, rvalue); | |
1343 | return 0; | |
1344 | } | |
1345 | n1 = unhexchar(cbyte[0]); | |
1346 | if (len == 2) | |
1347 | n2 = unhexchar(cbyte[1]); | |
1348 | else | |
1349 | n2 = 0; | |
1350 | ||
1351 | if (n1 < 0 || n2 < 0) { | |
1352 | log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid DUID byte: %s. Ignoring assignment: %s.", cbyte, rvalue); | |
1353 | return 0; | |
1354 | } | |
1355 | ||
1356 | byte = ((uint8_t) n1 << (4 * (len-1))) | (uint8_t) n2; | |
1357 | raw_data[count++] = byte; | |
1358 | } | |
1359 | ||
4e26a5ba YW |
1360 | assert_cc(sizeof(raw_data) == sizeof(duid->raw_data)); |
1361 | memcpy(duid->raw_data, raw_data, count); | |
1362 | duid->raw_data_len = count; | |
1363 | duid->set = force; | |
1364 | ||
cde74a65 YW |
1365 | return 0; |
1366 | } | |
4e26a5ba YW |
1367 | |
1368 | int config_parse_manager_duid_rawdata( | |
1369 | const char *unit, | |
1370 | const char *filename, | |
1371 | unsigned line, | |
1372 | const char *section, | |
1373 | unsigned section_line, | |
1374 | const char *lvalue, | |
1375 | int ltype, | |
1376 | const char *rvalue, | |
1377 | void *data, | |
1378 | void *userdata) { | |
1379 | ||
99534007 | 1380 | Manager *manager = ASSERT_PTR(userdata); |
4e26a5ba YW |
1381 | int r; |
1382 | ||
87160186 | 1383 | /* For backward compatibility. Setting both DHCPv4 and DHCPv6 DUID if they are not specified explicitly. */ |
4e26a5ba YW |
1384 | |
1385 | r = config_parse_duid_rawdata(unit, filename, line, section, section_line, lvalue, false, rvalue, &manager->dhcp_duid, manager); | |
1386 | if (r < 0) | |
1387 | return r; | |
1388 | ||
1389 | return config_parse_duid_rawdata(unit, filename, line, section, section_line, lvalue, false, rvalue, &manager->dhcp6_duid, manager); | |
1390 | } | |
1391 | ||
1392 | int config_parse_network_duid_rawdata( | |
1393 | const char *unit, | |
1394 | const char *filename, | |
1395 | unsigned line, | |
1396 | const char *section, | |
1397 | unsigned section_line, | |
1398 | const char *lvalue, | |
1399 | int ltype, | |
1400 | const char *rvalue, | |
1401 | void *data, | |
1402 | void *userdata) { | |
1403 | ||
99534007 | 1404 | Network *network = ASSERT_PTR(userdata); |
4e26a5ba YW |
1405 | int r; |
1406 | ||
4e26a5ba YW |
1407 | r = config_parse_duid_rawdata(unit, filename, line, section, section_line, lvalue, true, rvalue, &network->dhcp_duid, network); |
1408 | if (r < 0) | |
1409 | return r; | |
1410 | ||
87160186 | 1411 | /* For backward compatibility, also set DHCPv6 DUID if not specified explicitly. */ |
4e26a5ba YW |
1412 | return config_parse_duid_rawdata(unit, filename, line, section, section_line, lvalue, false, rvalue, &network->dhcp6_duid, network); |
1413 | } | |
2cba2146 YW |
1414 | |
1415 | int config_parse_uplink( | |
1416 | const char *unit, | |
1417 | const char *filename, | |
1418 | unsigned line, | |
1419 | const char *section, | |
1420 | unsigned section_line, | |
1421 | const char *lvalue, | |
1422 | int ltype, | |
1423 | const char *rvalue, | |
1424 | void *data, | |
1425 | void *userdata) { | |
1426 | ||
99534007 | 1427 | Network *network = ASSERT_PTR(userdata); |
dc5cae6c | 1428 | bool accept_none = true; |
2cba2146 YW |
1429 | int *index, r; |
1430 | char **name; | |
1431 | ||
1432 | assert(filename); | |
1433 | assert(section); | |
1434 | assert(lvalue); | |
1435 | assert(rvalue); | |
1436 | ||
1437 | if (streq(section, "DHCPServer")) { | |
1438 | index = &network->dhcp_server_uplink_index; | |
1439 | name = &network->dhcp_server_uplink_name; | |
1440 | } else if (streq(section, "IPv6SendRA")) { | |
1441 | index = &network->router_uplink_index; | |
1442 | name = &network->router_uplink_name; | |
a27588d4 YW |
1443 | } else if (STR_IN_SET(section, "DHCPv6PrefixDelegation", "DHCPPrefixDelegation")) { |
1444 | index = &network->dhcp_pd_uplink_index; | |
1445 | name = &network->dhcp_pd_uplink_name; | |
dc5cae6c | 1446 | accept_none = false; |
2cba2146 YW |
1447 | } else |
1448 | assert_not_reached(); | |
1449 | ||
1450 | if (isempty(rvalue) || streq(rvalue, ":auto")) { | |
1451 | *index = UPLINK_INDEX_AUTO; | |
1452 | *name = mfree(*name); | |
1453 | return 0; | |
1454 | } | |
1455 | ||
dc5cae6c | 1456 | if (accept_none && streq(rvalue, ":none")) { |
2cba2146 YW |
1457 | *index = UPLINK_INDEX_NONE; |
1458 | *name = mfree(*name); | |
1459 | return 0; | |
1460 | } | |
1461 | ||
dc5cae6c YW |
1462 | if (!accept_none && streq(rvalue, ":self")) { |
1463 | *index = UPLINK_INDEX_SELF; | |
1464 | *name = mfree(*name); | |
1465 | return 0; | |
1466 | } | |
1467 | ||
2cba2146 YW |
1468 | r = parse_ifindex(rvalue); |
1469 | if (r > 0) { | |
1470 | *index = r; | |
1471 | *name = mfree(*name); | |
1472 | return 0; | |
1473 | } | |
1474 | ||
1475 | if (!ifname_valid_full(rvalue, IFNAME_VALID_ALTERNATIVE)) { | |
1476 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
1477 | "Invalid interface name in %s=, ignoring assignment: %s", lvalue, rvalue); | |
1478 | return 0; | |
1479 | } | |
1480 | ||
1481 | /* The interface name will be resolved later. */ | |
1482 | r = free_and_strdup_warn(name, rvalue); | |
1483 | if (r < 0) | |
1484 | return r; | |
1485 | ||
1486 | /* Note, if uplink_name is set, then uplink_index will be ignored. So, the below does not mean | |
1487 | * an uplink interface will be selected automatically. */ | |
1488 | *index = UPLINK_INDEX_AUTO; | |
1489 | return 0; | |
1490 | } |