src/resolve/resolved-link.c

	resolved-link.c revision ec2c5e4398f9d65e5dfe61530f2556224733d1e6
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek/***
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek  This file is part of systemd.
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek  Copyright 2014 Lennart Poettering
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek  systemd is free software; you can redistribute it and/or modify it
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek  under the terms of the GNU Lesser General Public License as published by
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek  the Free Software Foundation; either version 2.1 of the License, or
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek  (at your option) any later version.
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek  systemd is distributed in the hope that it will be useful, but
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek  WITHOUT ANY WARRANTY; without even the implied warranty of
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek  Lesser General Public License for more details.
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek  You should have received a copy of the GNU Lesser General Public License
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek  along with systemd; If not, see <http://www.gnu.org/licenses/>.
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek***/
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek#include <net/if.h>
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek#include "sd-network.h"
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek#include "strv.h"
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek#include "missing.h"
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk#include "resolved-link.h"
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekint link_new(Manager *m, Link **ret, int ifindex) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        _cleanup_(link_freep) Link *l = NULL;
74df0fca09b3c31ed19e14ba80f996fdff772417Lennart Poettering        int r;
74df0fca09b3c31ed19e14ba80f996fdff772417Lennart Poettering
74df0fca09b3c31ed19e14ba80f996fdff772417Lennart Poettering        assert(m);
a5c32cff1f56afe6f0c6c70d91a88a7a8238b2d7Harald Hoyer        assert(ifindex > 0);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        r = hashmap_ensure_allocated(&m->links, NULL, NULL);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        if (r < 0)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                return r;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        l = new0(Link, 1);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        if (!l)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                return -ENOMEM;
74df0fca09b3c31ed19e14ba80f996fdff772417Lennart Poettering
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        l->ifindex = ifindex;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        r = hashmap_put(m->links, INT_TO_PTR(ifindex), l);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        if (r < 0)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                return r;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        l->manager = m;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        if (ret)
74df0fca09b3c31ed19e14ba80f996fdff772417Lennart Poettering                *ret = l;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        l = NULL;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        return 0;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-SzmekLink *link_free(Link *l) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        if (!l)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                return NULL;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        while (l->addresses)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                link_address_free(l->addresses);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk        if (l->manager)
7f1ad696a273703789b624fe0b209fb63e953016Lennart Poettering                hashmap_remove(l->manager->links, INT_TO_PTR(l->ifindex));
7f1ad696a273703789b624fe0b209fb63e953016Lennart Poettering
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        dns_scope_free(l->unicast_scope);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        dns_scope_free(l->llmnr_ipv4_scope);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        dns_scope_free(l->llmnr_ipv6_scope);
2c5859afecee81e345fc9526b1083bf79990ffb8Daniel Mack
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        while (l->dns_servers)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                dns_server_free(l->dns_servers);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        free(l);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        return NULL;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic void link_allocate_scopes(Link *l) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        int r;
2c5859afecee81e345fc9526b1083bf79990ffb8Daniel Mack
2c5859afecee81e345fc9526b1083bf79990ffb8Daniel Mack        assert(l);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
2c5859afecee81e345fc9526b1083bf79990ffb8Daniel Mack        if (l->dns_servers) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                if (!l->unicast_scope) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                        r = dns_scope_new(l->manager, &l->unicast_scope, l, DNS_PROTOCOL_DNS, AF_UNSPEC);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                        if (r < 0)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                                log_warning("Failed to allocate DNS scope: %s", strerror(-r));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                }
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek        } else
db91ea32aa223d1b087d99811226a9c59a1bb281Zbigniew Jędrzejewski-Szmek                l->unicast_scope = dns_scope_free(l->unicast_scope);
7fd1b19bc9e9f5574f2877936b8ac267c7706947Harald Hoyer
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        if (link_relevant(l, AF_INET) && l->manager->use_llmnr) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                if (!l->llmnr_ipv4_scope) {
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek                        r = dns_scope_new(l->manager, &l->llmnr_ipv4_scope, l, DNS_PROTOCOL_LLMNR, AF_INET);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                        if (r < 0)
7fd1b19bc9e9f5574f2877936b8ac267c7706947Harald Hoyer                                log_warning("Failed to allocate LLMNR IPv4 scope: %s", strerror(-r));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                }
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek        } else
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                l->llmnr_ipv4_scope = dns_scope_free(l->llmnr_ipv4_scope);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        if (link_relevant(l, AF_INET6) && l->manager->use_llmnr) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                if (!l->llmnr_ipv6_scope) {
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek                        r = dns_scope_new(l->manager, &l->llmnr_ipv6_scope, l, DNS_PROTOCOL_LLMNR, AF_INET6);
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek                        if (r < 0)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                                log_warning("Failed to allocate LLMNR IPv6 scope: %s", strerror(-r));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                }
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        } else
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                l->llmnr_ipv6_scope = dns_scope_free(l->llmnr_ipv6_scope);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekvoid link_add_rrs(Link *l, bool force_remove) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        LinkAddress *a;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        LIST_FOREACH(addresses, a, l->addresses)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                link_address_add_rrs(a, force_remove);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekint link_update_rtnl(Link *l, sd_rtnl_message *m) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        const char *n = NULL;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        int r;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        assert(l);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        assert(m);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        r = sd_rtnl_message_link_get_flags(m, &l->flags);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        if (r < 0)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                return r;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        sd_rtnl_message_read_u32(m, IFLA_MTU, &l->mtu);
db91ea32aa223d1b087d99811226a9c59a1bb281Zbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        if (sd_rtnl_message_read_string(m, IFLA_IFNAME, &n) >= 0) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                strncpy(l->name, n, sizeof(l->name));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                char_array_0(l->name);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        }
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
0371ca0dac1d70b2e5060a3c4e6fbbc2bdbd8671Florian Weimer        link_allocate_scopes(l);
0371ca0dac1d70b2e5060a3c4e6fbbc2bdbd8671Florian Weimer        link_add_rrs(l, false);
0371ca0dac1d70b2e5060a3c4e6fbbc2bdbd8671Florian Weimer
0371ca0dac1d70b2e5060a3c4e6fbbc2bdbd8671Florian Weimer        return 0;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int link_update_dns_servers(Link *l) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        _cleanup_strv_free_ char **nameservers = NULL;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        char **nameserver;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        DnsServer *s, *nx;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        int r;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        assert(l);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        LIST_FOREACH(servers, s, l->dns_servers)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                s->marked = true;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        r = sd_network_get_dns(l->ifindex, &nameservers);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        if (r < 0)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                goto clear;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        STRV_FOREACH(nameserver, nameservers) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                union in_addr_union a;
348ced909724a1331b85d57aede80a102a00e428Zbigniew Jędrzejewski-Szmek                int family;
348ced909724a1331b85d57aede80a102a00e428Zbigniew Jędrzejewski-Szmek
348ced909724a1331b85d57aede80a102a00e428Zbigniew Jędrzejewski-Szmek                r = in_addr_from_string_auto(*nameserver, &family, &a);
348ced909724a1331b85d57aede80a102a00e428Zbigniew Jędrzejewski-Szmek                if (r < 0)
348ced909724a1331b85d57aede80a102a00e428Zbigniew Jędrzejewski-Szmek                        goto clear;
348ced909724a1331b85d57aede80a102a00e428Zbigniew Jędrzejewski-Szmek
348ced909724a1331b85d57aede80a102a00e428Zbigniew Jędrzejewski-Szmek                s = link_find_dns_server(l, family, &a);
348ced909724a1331b85d57aede80a102a00e428Zbigniew Jędrzejewski-Szmek                if (s)
348ced909724a1331b85d57aede80a102a00e428Zbigniew Jędrzejewski-Szmek                        s->marked = false;
348ced909724a1331b85d57aede80a102a00e428Zbigniew Jędrzejewski-Szmek                else {
348ced909724a1331b85d57aede80a102a00e428Zbigniew Jędrzejewski-Szmek                        r = dns_server_new(l->manager, NULL, l, family, &a);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                        if (r < 0)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                                goto clear;
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek                }
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek        }
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek        LIST_FOREACH_SAFE(servers, s, nx, l->dns_servers)
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek                if (s->marked)
348ced909724a1331b85d57aede80a102a00e428Zbigniew Jędrzejewski-Szmek                        dns_server_free(s);
348ced909724a1331b85d57aede80a102a00e428Zbigniew Jędrzejewski-Szmek
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek        return 0;
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmekclear:
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek        while (l->dns_servers)
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek                dns_server_free(l->dns_servers);
348ced909724a1331b85d57aede80a102a00e428Zbigniew Jędrzejewski-Szmek
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek        return r;
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek}
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekint link_update_monitor(Link *l) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        assert(l);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        link_update_dns_servers(l);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        link_allocate_scopes(l);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        link_add_rrs(l, false);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        return 0;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekbool link_relevant(Link *l, int family) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        _cleanup_free_ char *state = NULL;
4608af4333d0f7f5f8e3bc632801b04ef07d246dLennart Poettering        LinkAddress *a;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
4608af4333d0f7f5f8e3bc632801b04ef07d246dLennart Poettering        assert(l);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        /* A link is relevant if it isn't a loopback or pointopoint
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek         * device, has a link beat, can do multicast and has at least
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek         * one relevant IP address */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        if (l->flags & (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_DORMANT))
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                return false;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        if ((l->flags & (IFF_UP|IFF_LOWER_UP|IFF_MULTICAST)) != (IFF_UP|IFF_LOWER_UP|IFF_MULTICAST))
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                return false;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        sd_network_get_link_operational_state(l->ifindex, &state);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        if (state && !STR_IN_SET(state, "unknown", "degraded", "routable"))
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                return false;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        LIST_FOREACH(addresses, a, l->addresses)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                if (a->family == family && link_address_relevant(a))
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                        return true;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        return false;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
23ad4dd8844c582929115a11ed2830a1371568d6Jan Alexander Steffens (heftig)LinkAddress *link_find_address(Link *l, int family, const union in_addr_union *in_addr) {
23ad4dd8844c582929115a11ed2830a1371568d6Jan Alexander Steffens (heftig)        LinkAddress *a;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
23ad4dd8844c582929115a11ed2830a1371568d6Jan Alexander Steffens (heftig)        assert(l);
23ad4dd8844c582929115a11ed2830a1371568d6Jan Alexander Steffens (heftig)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        LIST_FOREACH(addresses, a, l->addresses)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                if (a->family == family && in_addr_equal(family, &a->in_addr, in_addr))
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                        return a;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        return NULL;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-SzmekDnsServer* link_find_dns_server(Link *l, int family, const union in_addr_union *in_addr) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        DnsServer *s;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        assert(l);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        LIST_FOREACH(servers, s, l->dns_servers)
ed375bebf46c1251f4baa170b39ee93761dbdb19Zbigniew Jędrzejewski-Szmek                if (s->family == family && in_addr_equal(family, &s->address, in_addr))
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                        return s;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        return NULL;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-SzmekDnsServer *link_get_dns_server(Link *l) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        assert(l);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        if (!l->current_dns_server)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                l->current_dns_server = l->dns_servers;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        return l->current_dns_server;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekvoid link_next_dns_server(Link *l) {
f7dc3ab9f43b67abcbd34062b9352ab42debec49Lennart Poettering        assert(l);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        /* Switch to the next DNS server */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        if (!l->current_dns_server) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                l->current_dns_server = l->dns_servers;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                if (l->current_dns_server)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                        return;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        }
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        if (!l->current_dns_server)
de0671ee7fe465e108f62dcbbbe9366f81dd9e9aZbigniew Jędrzejewski-Szmek                return;
de0671ee7fe465e108f62dcbbbe9366f81dd9e9aZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        if (l->current_dns_server->servers_next) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                l->current_dns_server = l->current_dns_server->servers_next;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                return;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        }
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        l->current_dns_server = l->dns_servers;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekint link_address_new(Link *l, LinkAddress **ret, int family, const union in_addr_union *in_addr) {
cbd671772c9ce053a7050ddd29de170eb9efac7eZbigniew Jędrzejewski-Szmek        LinkAddress *a;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        assert(l);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        assert(in_addr);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        a = new0(LinkAddress, 1);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        if (!a)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                return -ENOMEM;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        a->family = family;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        a->in_addr = *in_addr;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        a->link = l;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        LIST_PREPEND(addresses, l->addresses, a);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek        if (ret)
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek                *ret = a;
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek        return 0;
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek}
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-SzmekLinkAddress *link_address_free(LinkAddress *a) {
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek        if (!a)
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek                return NULL;
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek        if (a->link) {
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek                LIST_REMOVE(addresses, a->link->addresses, a);
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek                if (a->llmnr_address_rr) {
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek                        if (a->family == AF_INET && a->link->llmnr_ipv4_scope)
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek                                dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_address_rr);
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek                        else if (a->family == AF_INET6 && a->link->llmnr_ipv6_scope)
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek                                dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_address_rr);
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek                }
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek                if (a->llmnr_ptr_rr) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                        if (a->family == AF_INET && a->link->llmnr_ipv4_scope)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                                dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_ptr_rr);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                        else if (a->family == AF_INET6 && a->link->llmnr_ipv6_scope)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                                dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_ptr_rr);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                }
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        }
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        dns_resource_record_unref(a->llmnr_address_rr);
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek        dns_resource_record_unref(a->llmnr_ptr_rr);
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        free(a);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        return NULL;
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek}
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekvoid link_address_add_rrs(LinkAddress *a, bool force_remove) {
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek        int r;
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek        assert(a);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        if (a->family == AF_INET) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk                if (!force_remove && link_address_relevant(a) && a->link->llmnr_ipv4_scope) {
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk                        if (!a->link->manager->host_ipv4_key) {
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk                                a->link->manager->host_ipv4_key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_A, a->link->manager->hostname);
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk                                if (!a->link->manager->host_ipv4_key) {
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk                                        r = -ENOMEM;
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk                                        goto fail;
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk                                }
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk                        }
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk                        if (!a->llmnr_address_rr) {
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk                                a->llmnr_address_rr = dns_resource_record_new(a->link->manager->host_ipv4_key);
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk                                if (!a->llmnr_address_rr) {
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk                                        r = -ENOMEM;
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk                                        goto fail;
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk                                }
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk                                a->llmnr_address_rr->a.in_addr = a->in_addr.in;
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk                                a->llmnr_address_rr->ttl = LLMNR_DEFAULT_TTL;
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering                        }
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering                        if (!a->llmnr_ptr_rr) {
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering                                r = dns_resource_record_new_reverse(&a->llmnr_ptr_rr, a->family, &a->in_addr, a->link->manager->hostname);
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering                                if (r < 0)
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk                                        goto fail;
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk                                a->llmnr_ptr_rr->ttl = LLMNR_DEFAULT_TTL;
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk                        }
63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek
63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek                        r = dns_zone_put(&a->link->llmnr_ipv4_scope->zone, a->link->llmnr_ipv4_scope, a->llmnr_address_rr, true);
63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek                        if (r < 0)
63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek                                log_warning("Failed tp add A record to LLMNR zone: %s", strerror(-r));
63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek
63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek                        r = dns_zone_put(&a->link->llmnr_ipv4_scope->zone, a->link->llmnr_ipv4_scope, a->llmnr_ptr_rr, false);
63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek                        if (r < 0)
63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek                                log_warning("Failed tp add IPv6 PTR record to LLMNR zone: %s", strerror(-r));
63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek                } else {
63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek                        if (a->llmnr_address_rr) {
63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek                                if (a->link->llmnr_ipv4_scope)
63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek                                        dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_address_rr);
63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek                                a->llmnr_address_rr = dns_resource_record_unref(a->llmnr_address_rr);
63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek                        }
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                        if (a->llmnr_ptr_rr) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                                if (a->link->llmnr_ipv4_scope)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                                        dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_ptr_rr);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                                a->llmnr_ptr_rr = dns_resource_record_unref(a->llmnr_ptr_rr);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                        }
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                }
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        }
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        if (a->family == AF_INET6) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                if (!force_remove && link_address_relevant(a) && a->link->llmnr_ipv6_scope) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                        if (!a->link->manager->host_ipv6_key) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                                a->link->manager->host_ipv6_key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_AAAA, a->link->manager->hostname);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                                if (!a->link->manager->host_ipv6_key) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                                        r = -ENOMEM;
63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek                                        goto fail;
63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek                                }
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                        }
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                        if (!a->llmnr_address_rr) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                                a->llmnr_address_rr = dns_resource_record_new(a->link->manager->host_ipv6_key);
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                                if (!a->llmnr_address_rr) {
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                                        r = -ENOMEM;
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                                        goto fail;
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                                }
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                                a->llmnr_address_rr->aaaa.in6_addr = a->in_addr.in6;
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                                a->llmnr_address_rr->ttl = LLMNR_DEFAULT_TTL;
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                        }
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                        if (!a->llmnr_ptr_rr) {
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                                r = dns_resource_record_new_reverse(&a->llmnr_ptr_rr, a->family, &a->in_addr, a->link->manager->hostname);
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                                if (r < 0)
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                                        goto fail;
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                                a->llmnr_ptr_rr->ttl = LLMNR_DEFAULT_TTL;
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                        }
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                        r = dns_zone_put(&a->link->llmnr_ipv6_scope->zone, a->link->llmnr_ipv6_scope, a->llmnr_address_rr, true);
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                        if (r < 0)
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                                log_warning("Failed to add AAAA record to LLMNR zone: %s", strerror(-r));
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                        r = dns_zone_put(&a->link->llmnr_ipv6_scope->zone, a->link->llmnr_ipv6_scope, a->llmnr_ptr_rr, false);
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                        if (r < 0)
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                                log_warning("Failed to add IPv6 PTR record to LLMNR zone: %s", strerror(-r));
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                } else {
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                        if (a->llmnr_address_rr) {
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                                if (a->link->llmnr_ipv6_scope)
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                                        dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_address_rr);
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                                a->llmnr_address_rr = dns_resource_record_unref(a->llmnr_address_rr);
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                        }
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                        if (a->llmnr_ptr_rr) {
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                                if (a->link->llmnr_ipv6_scope)
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                                        dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_ptr_rr);
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                                a->llmnr_ptr_rr = dns_resource_record_unref(a->llmnr_ptr_rr);
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                        }
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering                }
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering        }
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering        return;
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poetteringfail:
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering        log_debug("Failed to update address RRs: %s", strerror(-r));
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering}
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekint link_address_update_rtnl(LinkAddress *a, sd_rtnl_message *m) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        int r;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        assert(a);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        assert(m);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        r = sd_rtnl_message_addr_get_flags(m, &a->flags);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        if (r < 0)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                return r;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        sd_rtnl_message_addr_get_scope(m, &a->scope);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        link_allocate_scopes(a->link);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        link_add_rrs(a->link, false);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        return 0;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekbool link_address_relevant(LinkAddress *a) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        assert(a);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        if (a->flags & IFA_F_DEPRECATED)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                return false;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        if (IN_SET(a->scope, RT_SCOPE_HOST, RT_SCOPE_NOWHERE))
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek                return false;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek        return true;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}
d07f7b9ef2835c290d6beadebd17d15308608eeaLennart Poettering