74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

b5efdb8af40ea759a1ea584c1bc44ecc81dd00ceLennart Poettering#include <net/if.h>

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering#include "sd-network.h"

b5efdb8af40ea759a1ea584c1bc44ecc81dd00ceLennart Poettering

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen#include "alloc-util.h"

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering#include "missing.h"

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering#include "parse-util.h"

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen#include "resolved-link.h"

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen#include "string-util.h"

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen#include "strv.h"

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersenint link_new(Manager *m, Link **ret, int ifindex) {

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen _cleanup_(link_freep) Link *l = NULL;

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen int r;

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen assert(m);

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen assert(ifindex > 0);

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering r = hashmap_ensure_allocated(&m->links, NULL);

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (r < 0)

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering return r;

4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering l = new0(Link, 1);

0dd25fb9f005d8ab7ac4bc10a609d00569f8c56aLennart Poettering if (!l)

3c0cf502796be355431d4a64d738e75f543aa51dLennart Poettering return -ENOMEM;

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering l->ifindex = ifindex;

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering l->llmnr_support = SUPPORT_YES;

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering r = hashmap_put(m->links, INT_TO_PTR(ifindex), l);

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (r < 0)

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering return r;

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering l->manager = m;

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering if (ret)

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering *ret = l;

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering l = NULL;

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering return 0;

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering}

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering

eed857b71702f8551b46b66b31fa0d08583cf23cLennart PoetteringLink *link_free(Link *l) {

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (!l)

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering return NULL;

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering link_flush_dns_servers(l);

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering while (l->addresses)

f4461e5641d53f27d6e76e0607bdaa9c0c58c1f6Lennart Poettering link_address_free(l->addresses);

f4461e5641d53f27d6e76e0607bdaa9c0c58c1f6Lennart Poettering

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen if (l->manager)

d74fb368b18f0fbd9a4fe6f15691bbea7f3c4a01Tom Gundersen hashmap_remove(l->manager->links, INT_TO_PTR(l->ifindex));

4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering dns_scope_free(l->unicast_scope);

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering dns_scope_free(l->llmnr_ipv4_scope);

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen dns_scope_free(l->llmnr_ipv6_scope);

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering free(l);

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering return NULL;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering}

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poetteringstatic void link_allocate_scopes(Link *l) {

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering int r;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering assert(l);

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering if (l->dns_servers) {

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering if (!l->unicast_scope) {

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering r = dns_scope_new(l->manager, &l->unicast_scope, l, DNS_PROTOCOL_DNS, AF_UNSPEC);

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering if (r < 0)

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering log_warning_errno(r, "Failed to allocate DNS scope: %m");

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering }

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering } else

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering l->unicast_scope = dns_scope_free(l->unicast_scope);

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering if (link_relevant(l, AF_INET) &&

4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering l->llmnr_support != SUPPORT_NO &&

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering l->manager->llmnr_support != SUPPORT_NO) {

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (!l->llmnr_ipv4_scope) {

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering r = dns_scope_new(l->manager, &l->llmnr_ipv4_scope, l, DNS_PROTOCOL_LLMNR, AF_INET);

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (r < 0)

4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering log_warning_errno(r, "Failed to allocate LLMNR IPv4 scope: %m");

4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering }

4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering } else

4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering l->llmnr_ipv4_scope = dns_scope_free(l->llmnr_ipv4_scope);

3e684349c2cead2e6fd2f816c34eb17daba23a49Lennart Poettering

3e684349c2cead2e6fd2f816c34eb17daba23a49Lennart Poettering if (link_relevant(l, AF_INET6) &&

3e684349c2cead2e6fd2f816c34eb17daba23a49Lennart Poettering l->llmnr_support != SUPPORT_NO &&

4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering l->manager->llmnr_support != SUPPORT_NO &&

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering socket_ipv6_is_supported()) {

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (!l->llmnr_ipv6_scope) {

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering r = dns_scope_new(l->manager, &l->llmnr_ipv6_scope, l, DNS_PROTOCOL_LLMNR, AF_INET6);

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (r < 0)

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering log_warning_errno(r, "Failed to allocate LLMNR IPv6 scope: %m");

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering }

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen } else

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering l->llmnr_ipv6_scope = dns_scope_free(l->llmnr_ipv6_scope);

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering}

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersenvoid link_add_rrs(Link *l, bool force_remove) {

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen LinkAddress *a;

cab5b05903096e1c9cf5575ccc73f89d15c8db69Lennart Poettering

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen LIST_FOREACH(addresses, a, l->addresses)

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen link_address_add_rrs(a, force_remove);

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen}

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersenint link_update_rtnl(Link *l, sd_netlink_message *m) {

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen const char *n = NULL;

3e684349c2cead2e6fd2f816c34eb17daba23a49Lennart Poettering int r;

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering assert(l);

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen assert(m);

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering r = sd_rtnl_message_link_get_flags(m, &l->flags);

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (r < 0)

6cb08a8930bdaca950b152b1e8b82466ed59511cLennart Poettering return r;

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering sd_netlink_message_read_u32(m, IFLA_MTU, &l->mtu);

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering if (sd_netlink_message_read_string(m, IFLA_IFNAME, &n) >= 0) {

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering strncpy(l->name, n, sizeof(l->name)-1);

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering char_array_0(l->name);

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering }

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering link_allocate_scopes(l);

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering link_add_rrs(l, false);

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen return 0;

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering}

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersenstatic int link_update_dns_servers(Link *l) {

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering _cleanup_strv_free_ char **nameservers = NULL;

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering char **nameserver;

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering int r;

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering assert(l);

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering r = sd_network_link_get_dns(l->ifindex, &nameservers);

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering if (r < 0)

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering goto clear;

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering link_mark_dns_servers(l);

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering STRV_FOREACH(nameserver, nameservers) {

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering union in_addr_union a;

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering DnsServer *s;

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering int family;

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering r = in_addr_from_string_auto(*nameserver, &family, &a);

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering if (r < 0)

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering goto clear;

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering s = link_find_dns_server(l, family, &a);

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering if (s)

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering dns_server_move_back_and_unmark(s);

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering else {

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering r = dns_server_new(l->manager, NULL, DNS_SERVER_LINK, l, family, &a);

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering if (r < 0)

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering goto clear;

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering }

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering }

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen link_flush_marked_dns_servers(l);

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering return 0;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poetteringclear:

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering link_flush_dns_servers(l);

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering return r;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering}

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poetteringstatic int link_update_llmnr_support(Link *l) {

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering _cleanup_free_ char *b = NULL;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering int r;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering assert(l);

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering r = sd_network_link_get_llmnr(l->ifindex, &b);

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering if (r < 0)

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering goto clear;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering r = parse_boolean(b);

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering if (r < 0) {

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering if (streq(b, "resolve"))

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering l->llmnr_support = SUPPORT_RESOLVE;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering else

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering goto clear;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering } else if (r > 0)

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering l->llmnr_support = SUPPORT_YES;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering else

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering l->llmnr_support = SUPPORT_NO;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering return 0;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poetteringclear:

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering l->llmnr_support = SUPPORT_YES;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering return r;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering}

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poetteringstatic int link_update_domains(Link *l) {

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering int r;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering if (!l->unicast_scope)

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering return 0;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering l->unicast_scope->domains = strv_free(l->unicast_scope->domains);

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen r = sd_network_link_get_domains(l->ifindex,

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering &l->unicast_scope->domains);

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering if (r < 0)

b652d4a2099d1c167584dcc1d179d47c58dc38a2Lennart Poettering return r;

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering return 0;

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering}

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering

f4461e5641d53f27d6e76e0607bdaa9c0c58c1f6Lennart Poetteringint link_update_monitor(Link *l) {

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen assert(l);

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering link_update_dns_servers(l);

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering link_update_llmnr_support(l);

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering link_allocate_scopes(l);

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering link_update_domains(l);

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering link_add_rrs(l, false);

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering return 0;

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering}

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poetteringbool link_relevant(Link *l, int family) {

b64513580ce627578351b76a502455e7bc62cae4Lennart Poettering _cleanup_free_ char *state = NULL;

b64513580ce627578351b76a502455e7bc62cae4Lennart Poettering LinkAddress *a;

b64513580ce627578351b76a502455e7bc62cae4Lennart Poettering

b64513580ce627578351b76a502455e7bc62cae4Lennart Poettering assert(l);

b64513580ce627578351b76a502455e7bc62cae4Lennart Poettering

b64513580ce627578351b76a502455e7bc62cae4Lennart Poettering /* A link is relevant if it isn't a loopback or pointopoint

b64513580ce627578351b76a502455e7bc62cae4Lennart Poettering

b64513580ce627578351b76a502455e7bc62cae4Lennart Poettering if (l->flags & (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_DORMANT))

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering return false;

b64513580ce627578351b76a502455e7bc62cae4Lennart Poettering

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering if ((l->flags & (IFF_UP|IFF_LOWER_UP|IFF_MULTICAST)) != (IFF_UP|IFF_LOWER_UP|IFF_MULTICAST))

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering return false;

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering sd_network_link_get_operational_state(l->ifindex, &state);

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering if (state && !STR_IN_SET(state, "unknown", "degraded", "routable"))

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering return false;

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering

b64513580ce627578351b76a502455e7bc62cae4Lennart Poettering LIST_FOREACH(addresses, a, l->addresses)

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering if (a->family == family && link_address_relevant(a))

84129d46cd6e95e142973da93aede4c7433c9600Lennart Poettering return true;

b64513580ce627578351b76a502455e7bc62cae4Lennart Poettering

b64513580ce627578351b76a502455e7bc62cae4Lennart Poettering return false;

d74fb368b18f0fbd9a4fe6f15691bbea7f3c4a01Tom Gundersen}

d74fb368b18f0fbd9a4fe6f15691bbea7f3c4a01Tom Gundersen

d74fb368b18f0fbd9a4fe6f15691bbea7f3c4a01Tom GundersenLinkAddress *link_find_address(Link *l, int family, const union in_addr_union *in_addr) {

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering LinkAddress *a;

d74fb368b18f0fbd9a4fe6f15691bbea7f3c4a01Tom Gundersen

d74fb368b18f0fbd9a4fe6f15691bbea7f3c4a01Tom Gundersen assert(l);

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen LIST_FOREACH(addresses, a, l->addresses)

efd46a696d31097c38f653b36921e00c4df62319Lennart Poettering if (a->family == family && in_addr_equal(family, &a->in_addr, in_addr))

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen return a;

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen return NULL;

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering}

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersenvoid link_flush_dns_servers(Link *l) {

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen assert(l);

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering while (l->dns_servers)

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering dns_server_unlink(l->dns_servers);

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering}

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poetteringvoid link_flush_marked_dns_servers(Link *l) {

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen DnsServer *s, *next;

84129d46cd6e95e142973da93aede4c7433c9600Lennart Poettering

84129d46cd6e95e142973da93aede4c7433c9600Lennart Poettering assert(l);

84129d46cd6e95e142973da93aede4c7433c9600Lennart Poettering

84129d46cd6e95e142973da93aede4c7433c9600Lennart Poettering LIST_FOREACH_SAFE(servers, s, next, l->dns_servers) {

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen if (!s->marked)

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen continue;

f4461e5641d53f27d6e76e0607bdaa9c0c58c1f6Lennart Poettering

4e0b8b17a7465653f4e7b819dad5f8e30d64c0c4Tom Gundersen dns_server_unlink(s);

4e0b8b17a7465653f4e7b819dad5f8e30d64c0c4Tom Gundersen }

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering}

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering

f4461e5641d53f27d6e76e0607bdaa9c0c58c1f6Lennart Poetteringvoid link_mark_dns_servers(Link *l) {

4e0b8b17a7465653f4e7b819dad5f8e30d64c0c4Tom Gundersen DnsServer *s;

4e0b8b17a7465653f4e7b819dad5f8e30d64c0c4Tom Gundersen

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering assert(l);

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering LIST_FOREACH(servers, s, l->dns_servers)

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering s->marked = true;

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering}

571370c1555d2aa697733479a50957aff024bbcbLennart Poettering

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart PoetteringDnsServer* link_find_dns_server(Link *l, int family, const union in_addr_union *in_addr) {

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering DnsServer *s;

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering

571370c1555d2aa697733479a50957aff024bbcbLennart Poettering assert(l);

571370c1555d2aa697733479a50957aff024bbcbLennart Poettering assert(in_addr);

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering

4e0b8b17a7465653f4e7b819dad5f8e30d64c0c4Tom Gundersen LIST_FOREACH(servers, s, l->dns_servers)

4e0b8b17a7465653f4e7b819dad5f8e30d64c0c4Tom Gundersen if (s->family == family && in_addr_equal(family, &s->address, in_addr))

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering return s;

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering return NULL;

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering}

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart PoetteringDnsServer* link_set_dns_server(Link *l, DnsServer *s) {

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering assert(l);

b64513580ce627578351b76a502455e7bc62cae4Lennart Poettering

b64513580ce627578351b76a502455e7bc62cae4Lennart Poettering if (l->current_dns_server == s)

b64513580ce627578351b76a502455e7bc62cae4Lennart Poettering return s;

b64513580ce627578351b76a502455e7bc62cae4Lennart Poettering

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering if (s) {

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering _cleanup_free_ char *ip = NULL;

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering in_addr_to_string(s->family, &s->address, &ip);

b652d4a2099d1c167584dcc1d179d47c58dc38a2Lennart Poettering log_info("Switching to DNS server %s for interface %s.", strna(ip), l->name);

b652d4a2099d1c167584dcc1d179d47c58dc38a2Lennart Poettering }

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering dns_server_unref(l->current_dns_server);

b652d4a2099d1c167584dcc1d179d47c58dc38a2Lennart Poettering l->current_dns_server = dns_server_ref(s);

b64513580ce627578351b76a502455e7bc62cae4Lennart Poettering

b64513580ce627578351b76a502455e7bc62cae4Lennart Poettering if (l->unicast_scope)

b64513580ce627578351b76a502455e7bc62cae4Lennart Poettering dns_cache_flush(&l->unicast_scope->cache);

b64513580ce627578351b76a502455e7bc62cae4Lennart Poettering

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering return s;

b652d4a2099d1c167584dcc1d179d47c58dc38a2Lennart Poettering}

b652d4a2099d1c167584dcc1d179d47c58dc38a2Lennart Poettering

be808ea083fa07271116b4519c3c27fd20c5f077Tom GundersenDnsServer *link_get_dns_server(Link *l) {

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen assert(l);

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen if (!l->current_dns_server)

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen link_set_dns_server(l, l->dns_servers);

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen return l->current_dns_server;

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen}

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersenvoid link_next_dns_server(Link *l) {

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen assert(l);

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen if (!l->current_dns_server)

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen return;

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen /* Change to the next one, but make sure to follow the linked

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen if (l->current_dns_server->linked && l->current_dns_server->servers_next) {

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen link_set_dns_server(l, l->current_dns_server->servers_next);

011842775f750711833526d5bba1b818713947f5Lennart Poettering return;

011842775f750711833526d5bba1b818713947f5Lennart Poettering }

011842775f750711833526d5bba1b818713947f5Lennart Poettering

011842775f750711833526d5bba1b818713947f5Lennart Poettering link_set_dns_server(l, l->dns_servers);

011842775f750711833526d5bba1b818713947f5Lennart Poettering}

011842775f750711833526d5bba1b818713947f5Lennart Poettering

011842775f750711833526d5bba1b818713947f5Lennart Poetteringint link_address_new(Link *l, LinkAddress **ret, int family, const union in_addr_union *in_addr) {

011842775f750711833526d5bba1b818713947f5Lennart Poettering LinkAddress *a;

cc450722a02ab9c59bca1d9a5b5012f356336a8cLennart Poettering

cc450722a02ab9c59bca1d9a5b5012f356336a8cLennart Poettering assert(l);

cc450722a02ab9c59bca1d9a5b5012f356336a8cLennart Poettering assert(in_addr);

cc450722a02ab9c59bca1d9a5b5012f356336a8cLennart Poettering

cc450722a02ab9c59bca1d9a5b5012f356336a8cLennart Poettering a = new0(LinkAddress, 1);

cc450722a02ab9c59bca1d9a5b5012f356336a8cLennart Poettering if (!a)

cc450722a02ab9c59bca1d9a5b5012f356336a8cLennart Poettering return -ENOMEM;

cc450722a02ab9c59bca1d9a5b5012f356336a8cLennart Poettering

cc450722a02ab9c59bca1d9a5b5012f356336a8cLennart Poettering a->family = family;

cc450722a02ab9c59bca1d9a5b5012f356336a8cLennart Poettering a->in_addr = *in_addr;

cc450722a02ab9c59bca1d9a5b5012f356336a8cLennart Poettering

011842775f750711833526d5bba1b818713947f5Lennart Poettering a->link = l;

011842775f750711833526d5bba1b818713947f5Lennart Poettering LIST_PREPEND(addresses, l->addresses, a);

f4461e5641d53f27d6e76e0607bdaa9c0c58c1f6Lennart Poettering

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen if (ret)

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen *ret = a;

f4461e5641d53f27d6e76e0607bdaa9c0c58c1f6Lennart Poettering

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen return 0;

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen}

f4461e5641d53f27d6e76e0607bdaa9c0c58c1f6Lennart Poettering

cc450722a02ab9c59bca1d9a5b5012f356336a8cLennart PoetteringLinkAddress *link_address_free(LinkAddress *a) {

011842775f750711833526d5bba1b818713947f5Lennart Poettering if (!a)

011842775f750711833526d5bba1b818713947f5Lennart Poettering return NULL;

cc450722a02ab9c59bca1d9a5b5012f356336a8cLennart Poettering

cc450722a02ab9c59bca1d9a5b5012f356336a8cLennart Poettering if (a->link) {

cc450722a02ab9c59bca1d9a5b5012f356336a8cLennart Poettering LIST_REMOVE(addresses, a->link->addresses, a);

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering

6cb08a8930bdaca950b152b1e8b82466ed59511cLennart Poettering if (a->llmnr_address_rr) {

6cb08a8930bdaca950b152b1e8b82466ed59511cLennart Poettering if (a->family == AF_INET && a->link->llmnr_ipv4_scope)

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_address_rr);

f4461e5641d53f27d6e76e0607bdaa9c0c58c1f6Lennart Poettering else if (a->family == AF_INET6 && a->link->llmnr_ipv6_scope)

f4461e5641d53f27d6e76e0607bdaa9c0c58c1f6Lennart Poettering dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_address_rr);

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering }

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen if (a->llmnr_ptr_rr) {

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering if (a->family == AF_INET && a->link->llmnr_ipv4_scope)

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_ptr_rr);

6a1a5eec43892dee3ff6e208bceb1931c25c782eLennart Poettering else if (a->family == AF_INET6 && a->link->llmnr_ipv6_scope)

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_ptr_rr);

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering }

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering }

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering dns_resource_record_unref(a->llmnr_address_rr);

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering dns_resource_record_unref(a->llmnr_ptr_rr);

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering free(a);

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering return NULL;

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering}

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poetteringvoid link_address_add_rrs(LinkAddress *a, bool force_remove) {

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering int r;

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering

6a1a5eec43892dee3ff6e208bceb1931c25c782eLennart Poettering assert(a);

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering if (a->family == AF_INET) {

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering if (!force_remove &&

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering link_address_relevant(a) &&

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering a->link->llmnr_ipv4_scope &&

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering a->link->llmnr_support == SUPPORT_YES &&

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering a->link->manager->llmnr_support == SUPPORT_YES) {

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering if (!a->link->manager->llmnr_host_ipv4_key) {

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering a->link->manager->llmnr_host_ipv4_key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_A, a->link->manager->llmnr_hostname);

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering if (!a->link->manager->llmnr_host_ipv4_key) {

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering r = -ENOMEM;

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering goto fail;

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering }

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering }

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering if (!a->llmnr_address_rr) {

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering a->llmnr_address_rr = dns_resource_record_new(a->link->manager->llmnr_host_ipv4_key);

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering if (!a->llmnr_address_rr) {

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering r = -ENOMEM;

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering goto fail;

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering }

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering a->llmnr_address_rr->a.in_addr = a->in_addr.in;

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering a->llmnr_address_rr->ttl = LLMNR_DEFAULT_TTL;

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering }

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering if (!a->llmnr_ptr_rr) {

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering r = dns_resource_record_new_reverse(&a->llmnr_ptr_rr, a->family, &a->in_addr, a->link->manager->llmnr_hostname);

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering if (r < 0)

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering goto fail;

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering a->llmnr_ptr_rr->ttl = LLMNR_DEFAULT_TTL;

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering }

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering r = dns_zone_put(&a->link->llmnr_ipv4_scope->zone, a->link->llmnr_ipv4_scope, a->llmnr_address_rr, true);

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering if (r < 0)

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering log_warning_errno(r, "Failed to add A record to LLMNR zone: %m");

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering r = dns_zone_put(&a->link->llmnr_ipv4_scope->zone, a->link->llmnr_ipv4_scope, a->llmnr_ptr_rr, false);

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering if (r < 0)

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering log_warning_errno(r, "Failed to add IPv6 PTR record to LLMNR zone: %m");

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering } else {

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering if (a->llmnr_address_rr) {

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering if (a->link->llmnr_ipv4_scope)

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_address_rr);

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering a->llmnr_address_rr = dns_resource_record_unref(a->llmnr_address_rr);

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering }

011842775f750711833526d5bba1b818713947f5Lennart Poettering

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering if (a->llmnr_ptr_rr) {

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering if (a->link->llmnr_ipv4_scope)

6cb08a8930bdaca950b152b1e8b82466ed59511cLennart Poettering dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_ptr_rr);

6cb08a8930bdaca950b152b1e8b82466ed59511cLennart Poettering a->llmnr_ptr_rr = dns_resource_record_unref(a->llmnr_ptr_rr);

6bb2c08597c999c429e889cd2403b2fef5f3e1a0Lennart Poettering }

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen }

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen }

f4461e5641d53f27d6e76e0607bdaa9c0c58c1f6Lennart Poettering

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen if (a->family == AF_INET6) {

be808ea083fa07271116b4519c3c27fd20c5f077Tom Gundersen

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering if (!force_remove &&

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering link_address_relevant(a) &&

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering a->link->llmnr_ipv6_scope &&

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering a->link->llmnr_support == SUPPORT_YES &&

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering a->link->manager->llmnr_support == SUPPORT_YES) {

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering if (!a->link->manager->llmnr_host_ipv6_key) {

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering a->link->manager->llmnr_host_ipv6_key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_AAAA, a->link->manager->llmnr_hostname);

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering if (!a->link->manager->llmnr_host_ipv6_key) {

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering r = -ENOMEM;

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering goto fail;

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering }

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering }

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering if (!a->llmnr_address_rr) {

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering a->llmnr_address_rr = dns_resource_record_new(a->link->manager->llmnr_host_ipv6_key);

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering if (!a->llmnr_address_rr) {

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering r = -ENOMEM;

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering goto fail;

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering }

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering a->llmnr_address_rr->aaaa.in6_addr = a->in_addr.in6;

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering a->llmnr_address_rr->ttl = LLMNR_DEFAULT_TTL;

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering }

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering if (!a->llmnr_ptr_rr) {

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering r = dns_resource_record_new_reverse(&a->llmnr_ptr_rr, a->family, &a->in_addr, a->link->manager->llmnr_hostname);

519ef04651b07a547f010d6462603669d7fde4e5Lennart Poettering if (r < 0)

6cb08a8930bdaca950b152b1e8b82466ed59511cLennart Poettering goto fail;

6cb08a8930bdaca950b152b1e8b82466ed59511cLennart Poettering

6cb08a8930bdaca950b152b1e8b82466ed59511cLennart Poettering a->llmnr_ptr_rr->ttl = LLMNR_DEFAULT_TTL;

6cb08a8930bdaca950b152b1e8b82466ed59511cLennart Poettering }

6cb08a8930bdaca950b152b1e8b82466ed59511cLennart Poettering

6cb08a8930bdaca950b152b1e8b82466ed59511cLennart Poettering r = dns_zone_put(&a->link->llmnr_ipv6_scope->zone, a->link->llmnr_ipv6_scope, a->llmnr_address_rr, true);

6cb08a8930bdaca950b152b1e8b82466ed59511cLennart Poettering if (r < 0)

6cb08a8930bdaca950b152b1e8b82466ed59511cLennart Poettering log_warning_errno(r, "Failed to add AAAA record to LLMNR zone: %m");

6cb08a8930bdaca950b152b1e8b82466ed59511cLennart Poettering

92ec902aad1ade7acbe50efd7b8ef87fbdc63af3Lennart Poettering r = dns_zone_put(&a->link->llmnr_ipv6_scope->zone, a->link->llmnr_ipv6_scope, a->llmnr_ptr_rr, false);

92ec902aad1ade7acbe50efd7b8ef87fbdc63af3Lennart Poettering if (r < 0)

92ec902aad1ade7acbe50efd7b8ef87fbdc63af3Lennart Poettering log_warning_errno(r, "Failed to add IPv6 PTR record to LLMNR zone: %m");

92ec902aad1ade7acbe50efd7b8ef87fbdc63af3Lennart Poettering } else {

92ec902aad1ade7acbe50efd7b8ef87fbdc63af3Lennart Poettering if (a->llmnr_address_rr) {

92ec902aad1ade7acbe50efd7b8ef87fbdc63af3Lennart Poettering if (a->link->llmnr_ipv6_scope)

92ec902aad1ade7acbe50efd7b8ef87fbdc63af3Lennart Poettering dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_address_rr);

92ec902aad1ade7acbe50efd7b8ef87fbdc63af3Lennart Poettering a->llmnr_address_rr = dns_resource_record_unref(a->llmnr_address_rr);

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering }

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering if (a->llmnr_ptr_rr) {

de54e62b4bd7856fb897c9a2ee93cc228adb2135Lennart Poettering if (a->link->llmnr_ipv6_scope)

92ec902aad1ade7acbe50efd7b8ef87fbdc63af3Lennart Poettering dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_ptr_rr);

92ec902aad1ade7acbe50efd7b8ef87fbdc63af3Lennart Poettering a->llmnr_ptr_rr = dns_resource_record_unref(a->llmnr_ptr_rr);

92ec902aad1ade7acbe50efd7b8ef87fbdc63af3Lennart Poettering }

92ec902aad1ade7acbe50efd7b8ef87fbdc63af3Lennart Poettering }

92ec902aad1ade7acbe50efd7b8ef87fbdc63af3Lennart Poettering }

92ec902aad1ade7acbe50efd7b8ef87fbdc63af3Lennart Poettering

92ec902aad1ade7acbe50efd7b8ef87fbdc63af3Lennart Poettering return;

92ec902aad1ade7acbe50efd7b8ef87fbdc63af3Lennart Poettering

92ec902aad1ade7acbe50efd7b8ef87fbdc63af3Lennart Poetteringfail:

b826ab586c9e0a9c0d438a75c28cf3a8ab485929Tom Gundersen log_debug_errno(r, "Failed to update address RRs: %m");

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering}

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering

b826ab586c9e0a9c0d438a75c28cf3a8ab485929Tom Gundersenint link_address_update_rtnl(LinkAddress *a, sd_netlink_message *m) {

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering int r;

b826ab586c9e0a9c0d438a75c28cf3a8ab485929Tom Gundersen assert(a);

b826ab586c9e0a9c0d438a75c28cf3a8ab485929Tom Gundersen assert(m);

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering r = sd_rtnl_message_addr_get_flags(m, &a->flags);

d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt if (r < 0)

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering return r;

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering sd_rtnl_message_addr_get_scope(m, &a->scope);

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering link_allocate_scopes(a->link);

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering link_add_rrs(a->link, false);

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering return 0;

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering}

d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt

d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidtbool link_address_relevant(LinkAddress *a) {

d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt assert(a);

d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt

d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt if (a->flags & (IFA_F_DEPRECATED|IFA_F_TENTATIVE))

636e813dc98ea40c58c6c85bc5e7e3c9f0904ea2Lennart Poettering return false;

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering if (IN_SET(a->scope, RT_SCOPE_HOST, RT_SCOPE_NOWHERE))

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering return false;

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering return true;

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering}

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering