src/resolve/resolved-link.c

	resolved-link.c revision b5efdb8af40ea759a1ea584c1bc44ecc81dd00ce
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering/***
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering  This file is part of systemd.
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering  Copyright 2014 Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering  systemd is free software; you can redistribute it and/or modify it
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering  under the terms of the GNU Lesser General Public License as published by
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering  the Free Software Foundation; either version 2.1 of the License, or
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering  (at your option) any later version.
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering  systemd is distributed in the hope that it will be useful, but
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering  WITHOUT ANY WARRANTY; without even the implied warranty of
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering  Lesser General Public License for more details.
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering  You should have received a copy of the GNU Lesser General Public License
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering  along with systemd; If not, see <http://www.gnu.org/licenses/>.
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering***/
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering#include <net/if.h>
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering#include "sd-network.h"
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering
b5efdb8af40ea759a1ea584c1bc44ecc81dd00ceLennart Poettering#include "alloc-util.h"
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering#include "missing.h"
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering#include "parse-util.h"
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering#include "resolved-link.h"
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#include "string-util.h"
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#include "strv.h"
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poetteringint link_new(Manager *m, Link **ret, int ifindex) {
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        _cleanup_(link_freep) Link *l = NULL;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        int r;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        assert(m);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        assert(ifindex > 0);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt        r = hashmap_ensure_allocated(&m->links, NULL);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        if (r < 0)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                return r;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        l = new0(Link, 1);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        if (!l)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                return -ENOMEM;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        l->ifindex = ifindex;
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering        l->llmnr_support = SUPPORT_YES;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        r = hashmap_put(m->links, INT_TO_PTR(ifindex), l);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        if (r < 0)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                return r;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        l->manager = m;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        if (ret)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                *ret = l;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        l = NULL;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        return 0;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering}
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart PoetteringLink *link_free(Link *l) {
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        if (!l)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                return NULL;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        while (l->addresses)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                link_address_free(l->addresses);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        if (l->manager)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                hashmap_remove(l->manager->links, INT_TO_PTR(l->ifindex));
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen        while (l->dns_servers) {
91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen                DnsServer *s = l->dns_servers;
91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen
91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen                LIST_REMOVE(servers, l->dns_servers, s);
91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen                dns_server_unref(s);
91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen        }
cab5b05903096e1c9cf5575ccc73f89d15c8db69Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        dns_scope_free(l->unicast_scope);
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering        dns_scope_free(l->llmnr_ipv4_scope);
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering        dns_scope_free(l->llmnr_ipv6_scope);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        free(l);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        return NULL;
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering}
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poetteringstatic void link_allocate_scopes(Link *l) {
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering        int r;
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering        assert(l);
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering
6073b6f26ab9fc6bf335faa7073ec443eef093fdTom Gundersen        if (l->dns_servers) {
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering                if (!l->unicast_scope) {
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering                        r = dns_scope_new(l->manager, &l->unicast_scope, l, DNS_PROTOCOL_DNS, AF_UNSPEC);
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering                        if (r < 0)
da927ba997d68401563b927f92e6e40e021a8e5cMichal Schmidt                                log_warning_errno(r, "Failed to allocate DNS scope: %m");
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering                }
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering        } else
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering                l->unicast_scope = dns_scope_free(l->unicast_scope);
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering
90ab504273a7f186ebb76e6acfb778b4e0d7c91bLennart Poettering        if (link_relevant(l, AF_INET) &&
90ab504273a7f186ebb76e6acfb778b4e0d7c91bLennart Poettering            l->llmnr_support != SUPPORT_NO &&
db97a66aa69925f7403ba3c433e86320d136567dLennart Poettering            l->manager->llmnr_support != SUPPORT_NO) {
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering                if (!l->llmnr_ipv4_scope) {
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering                        r = dns_scope_new(l->manager, &l->llmnr_ipv4_scope, l, DNS_PROTOCOL_LLMNR, AF_INET);
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering                        if (r < 0)
da927ba997d68401563b927f92e6e40e021a8e5cMichal Schmidt                                log_warning_errno(r, "Failed to allocate LLMNR IPv4 scope: %m");
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering                }
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering        } else
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering                l->llmnr_ipv4_scope = dns_scope_free(l->llmnr_ipv4_scope);
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering
90ab504273a7f186ebb76e6acfb778b4e0d7c91bLennart Poettering        if (link_relevant(l, AF_INET6) &&
90ab504273a7f186ebb76e6acfb778b4e0d7c91bLennart Poettering            l->llmnr_support != SUPPORT_NO &&
90ab504273a7f186ebb76e6acfb778b4e0d7c91bLennart Poettering            l->manager->llmnr_support != SUPPORT_NO &&
db97a66aa69925f7403ba3c433e86320d136567dLennart Poettering            socket_ipv6_is_supported()) {
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering                if (!l->llmnr_ipv6_scope) {
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering                        r = dns_scope_new(l->manager, &l->llmnr_ipv6_scope, l, DNS_PROTOCOL_LLMNR, AF_INET6);
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering                        if (r < 0)
da927ba997d68401563b927f92e6e40e021a8e5cMichal Schmidt                                log_warning_errno(r, "Failed to allocate LLMNR IPv6 scope: %m");
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering                }
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering        } else
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering                l->llmnr_ipv6_scope = dns_scope_free(l->llmnr_ipv6_scope);
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering}
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poetteringvoid link_add_rrs(Link *l, bool force_remove) {
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering        LinkAddress *a;
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering        LIST_FOREACH(addresses, a, l->addresses)
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                link_address_add_rrs(a, force_remove);
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering}
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
1c4baffc1895809bae9ac36b670af90a4cb9cd7dTom Gundersenint link_update_rtnl(Link *l, sd_netlink_message *m) {
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering        const char *n = NULL;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        int r;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        assert(l);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        assert(m);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        r = sd_rtnl_message_link_get_flags(m, &l->flags);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        if (r < 0)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                return r;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
1c4baffc1895809bae9ac36b670af90a4cb9cd7dTom Gundersen        sd_netlink_message_read_u32(m, IFLA_MTU, &l->mtu);
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering
1c4baffc1895809bae9ac36b670af90a4cb9cd7dTom Gundersen        if (sd_netlink_message_read_string(m, IFLA_IFNAME, &n) >= 0) {
cc7844e78751916acb639443c119763cafe2c684Lennart Poettering                strncpy(l->name, n, sizeof(l->name)-1);
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering                char_array_0(l->name);
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering        }
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering        link_allocate_scopes(l);
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering        link_add_rrs(l, false);
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        return 0;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering}
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
6073b6f26ab9fc6bf335faa7073ec443eef093fdTom Gundersenstatic int link_update_dns_servers(Link *l) {
6f4dedb250f2d607eceefaa491f338becbeee7c0Tom Gundersen        _cleanup_strv_free_ char **nameservers = NULL;
6f4dedb250f2d607eceefaa491f338becbeee7c0Tom Gundersen        char **nameserver;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        DnsServer *s, *nx;
6f4dedb250f2d607eceefaa491f338becbeee7c0Tom Gundersen        int r;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        assert(l);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
d6731e4c7964ee2860d4f5abdb0b52acd7a66960Tom Gundersen        r = sd_network_link_get_dns(l->ifindex, &nameservers);
6f4dedb250f2d607eceefaa491f338becbeee7c0Tom Gundersen        if (r < 0)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                goto clear;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
5cb36f41f01cf4b1f4395abfffd1b33116591e58Lennart Poettering        LIST_FOREACH(servers, s, l->dns_servers)
5cb36f41f01cf4b1f4395abfffd1b33116591e58Lennart Poettering                s->marked = true;
5cb36f41f01cf4b1f4395abfffd1b33116591e58Lennart Poettering
6f4dedb250f2d607eceefaa491f338becbeee7c0Tom Gundersen        STRV_FOREACH(nameserver, nameservers) {
6f4dedb250f2d607eceefaa491f338becbeee7c0Tom Gundersen                union in_addr_union a;
6f4dedb250f2d607eceefaa491f338becbeee7c0Tom Gundersen                int family;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
6f4dedb250f2d607eceefaa491f338becbeee7c0Tom Gundersen                r = in_addr_from_string_auto(*nameserver, &family, &a);
6f4dedb250f2d607eceefaa491f338becbeee7c0Tom Gundersen                if (r < 0)
6f4dedb250f2d607eceefaa491f338becbeee7c0Tom Gundersen                        goto clear;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
6f4dedb250f2d607eceefaa491f338becbeee7c0Tom Gundersen                s = link_find_dns_server(l, family, &a);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                if (s)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                        s->marked = false;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                else {
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering                        r = dns_server_new(l->manager, NULL, DNS_SERVER_LINK, l, family, &a);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                        if (r < 0)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                                goto clear;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                }
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        }
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
6073b6f26ab9fc6bf335faa7073ec443eef093fdTom Gundersen        LIST_FOREACH_SAFE(servers, s, nx, l->dns_servers)
91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen                if (s->marked) {
91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen                        LIST_REMOVE(servers, l->dns_servers, s);
91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen                        dns_server_unref(s);
91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen                }
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        return 0;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poetteringclear:
91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen        while (l->dns_servers) {
91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen                s = l->dns_servers;
91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen
91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen                LIST_REMOVE(servers, l->dns_servers, s);
91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen                dns_server_unref(s);
91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen        }
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        return r;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering}
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poetteringstatic int link_update_llmnr_support(Link *l) {
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering        _cleanup_free_ char *b = NULL;
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering        int r;
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering        assert(l);
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering
d6731e4c7964ee2860d4f5abdb0b52acd7a66960Tom Gundersen        r = sd_network_link_get_llmnr(l->ifindex, &b);
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering        if (r < 0)
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering                goto clear;
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering        r = parse_boolean(b);
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering        if (r < 0) {
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering                if (streq(b, "resolve"))
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering                        l->llmnr_support = SUPPORT_RESOLVE;
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering                else
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering                        goto clear;
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering        } else if (r > 0)
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering                l->llmnr_support = SUPPORT_YES;
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering        else
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering                l->llmnr_support = SUPPORT_NO;
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering        return 0;
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poetteringclear:
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering        l->llmnr_support = SUPPORT_YES;
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering        return r;
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering}
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering
bda2c408f8a739c19161818bcc842107f60652a2Tom Gundersenstatic int link_update_domains(Link *l) {
bda2c408f8a739c19161818bcc842107f60652a2Tom Gundersen        int r;
bda2c408f8a739c19161818bcc842107f60652a2Tom Gundersen
bda2c408f8a739c19161818bcc842107f60652a2Tom Gundersen        if (!l->unicast_scope)
bda2c408f8a739c19161818bcc842107f60652a2Tom Gundersen                return 0;
bda2c408f8a739c19161818bcc842107f60652a2Tom Gundersen
6796073e330f49923c5134652ee085e29fc88002Lennart Poettering        l->unicast_scope->domains = strv_free(l->unicast_scope->domains);
bda2c408f8a739c19161818bcc842107f60652a2Tom Gundersen
bda2c408f8a739c19161818bcc842107f60652a2Tom Gundersen        r = sd_network_link_get_domains(l->ifindex,
bda2c408f8a739c19161818bcc842107f60652a2Tom Gundersen                                        &l->unicast_scope->domains);
bda2c408f8a739c19161818bcc842107f60652a2Tom Gundersen        if (r < 0)
bda2c408f8a739c19161818bcc842107f60652a2Tom Gundersen                return r;
bda2c408f8a739c19161818bcc842107f60652a2Tom Gundersen
bda2c408f8a739c19161818bcc842107f60652a2Tom Gundersen        return 0;
bda2c408f8a739c19161818bcc842107f60652a2Tom Gundersen}
bda2c408f8a739c19161818bcc842107f60652a2Tom Gundersen
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poetteringint link_update_monitor(Link *l) {
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        assert(l);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
6073b6f26ab9fc6bf335faa7073ec443eef093fdTom Gundersen        link_update_dns_servers(l);
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering        link_update_llmnr_support(l);
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering        link_allocate_scopes(l);
bda2c408f8a739c19161818bcc842107f60652a2Tom Gundersen        link_update_domains(l);
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering        link_add_rrs(l, false);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        return 0;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering}
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
0dd25fb9f005d8ab7ac4bc10a609d00569f8c56aLennart Poetteringbool link_relevant(Link *l, int family) {
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering        _cleanup_free_ char *state = NULL;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        LinkAddress *a;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        assert(l);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering        /* A link is relevant if it isn't a loopback or pointopoint
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering         * device, has a link beat, can do multicast and has at least
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering         * one relevant IP address */
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering        if (l->flags & (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_DORMANT))
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                return false;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering        if ((l->flags & (IFF_UP|IFF_LOWER_UP|IFF_MULTICAST)) != (IFF_UP|IFF_LOWER_UP|IFF_MULTICAST))
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                return false;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
d6731e4c7964ee2860d4f5abdb0b52acd7a66960Tom Gundersen        sd_network_link_get_operational_state(l->ifindex, &state);
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering        if (state && !STR_IN_SET(state, "unknown", "degraded", "routable"))
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                return false;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        LIST_FOREACH(addresses, a, l->addresses)
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering                if (a->family == family && link_address_relevant(a))
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                        return true;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        return false;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering}
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart PoetteringLinkAddress *link_find_address(Link *l, int family, const union in_addr_union *in_addr) {
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        LinkAddress *a;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        assert(l);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering        LIST_FOREACH(addresses, a, l->addresses)
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering                if (a->family == family && in_addr_equal(family, &a->in_addr, in_addr))
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                        return a;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        return NULL;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering}
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart PoetteringDnsServer* link_find_dns_server(Link *l, int family, const union in_addr_union *in_addr) {
6073b6f26ab9fc6bf335faa7073ec443eef093fdTom Gundersen        DnsServer *s;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        assert(l);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
6073b6f26ab9fc6bf335faa7073ec443eef093fdTom Gundersen        LIST_FOREACH(servers, s, l->dns_servers)
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering                if (s->family == family && in_addr_equal(family, &s->address, in_addr))
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                        return s;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        return NULL;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering}
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
2c27fbca2d88214bd305272308a370a962818f1eLennart PoetteringDnsServer* link_set_dns_server(Link *l, DnsServer *s) {
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering        assert(l);
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering        if (l->current_dns_server == s)
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering                return s;
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering        if (s) {
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering                _cleanup_free_ char *ip = NULL;
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering                in_addr_to_string(s->family, &s->address, &ip);
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering                log_info("Switching to DNS server %s for interface %s.", strna(ip), l->name);
2c27fbca2d88214bd305272308a370a962818f1eLennart Poettering        }
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering        l->current_dns_server = s;
2c27fbca2d88214bd305272308a370a962818f1eLennart Poettering
2c27fbca2d88214bd305272308a370a962818f1eLennart Poettering        if (l->unicast_scope)
2c27fbca2d88214bd305272308a370a962818f1eLennart Poettering                dns_cache_flush(&l->unicast_scope->cache);
2c27fbca2d88214bd305272308a370a962818f1eLennart Poettering
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering        return s;
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering}
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart PoetteringDnsServer *link_get_dns_server(Link *l) {
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        assert(l);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        if (!l->current_dns_server)
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering                link_set_dns_server(l, l->dns_servers);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        return l->current_dns_server;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering}
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poetteringvoid link_next_dns_server(Link *l) {
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        assert(l);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        if (!l->current_dns_server)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                return;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        if (l->current_dns_server->servers_next) {
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering                link_set_dns_server(l, l->current_dns_server->servers_next);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                return;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        }
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering        link_set_dns_server(l, l->dns_servers);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering}
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poetteringint link_address_new(Link *l, LinkAddress **ret, int family, const union in_addr_union *in_addr) {
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        LinkAddress *a;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        assert(l);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        assert(in_addr);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        a = new0(LinkAddress, 1);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        if (!a)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                return -ENOMEM;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        a->family = family;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        a->in_addr = *in_addr;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        a->link = l;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        LIST_PREPEND(addresses, l->addresses, a);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        if (ret)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                *ret = a;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        return 0;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering}
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart PoetteringLinkAddress *link_address_free(LinkAddress *a) {
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        if (!a)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                return NULL;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering        if (a->link) {
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                LIST_REMOVE(addresses, a->link->addresses, a);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                if (a->llmnr_address_rr) {
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                        if (a->family == AF_INET && a->link->llmnr_ipv4_scope)
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                                dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_address_rr);
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                        else if (a->family == AF_INET6 && a->link->llmnr_ipv6_scope)
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                                dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_address_rr);
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                }
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                if (a->llmnr_ptr_rr) {
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                        if (a->family == AF_INET && a->link->llmnr_ipv4_scope)
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                                dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_ptr_rr);
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                        else if (a->family == AF_INET6 && a->link->llmnr_ipv6_scope)
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                                dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_ptr_rr);
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                }
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering        }
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering        dns_resource_record_unref(a->llmnr_address_rr);
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering        dns_resource_record_unref(a->llmnr_ptr_rr);
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        free(a);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        return NULL;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering}
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poetteringvoid link_address_add_rrs(LinkAddress *a, bool force_remove) {
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering        int r;
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering        assert(a);
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering        if (a->family == AF_INET) {
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering                if (!force_remove &&
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering                    link_address_relevant(a) &&
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering                    a->link->llmnr_ipv4_scope &&
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering                    a->link->llmnr_support == SUPPORT_YES &&
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering                    a->link->manager->llmnr_support == SUPPORT_YES) {
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering
78c6a153c47f8d597c827bdcaf8c4e42ac87f738Lennart Poettering                        if (!a->link->manager->llmnr_host_ipv4_key) {
78c6a153c47f8d597c827bdcaf8c4e42ac87f738Lennart Poettering                                a->link->manager->llmnr_host_ipv4_key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_A, a->link->manager->llmnr_hostname);
78c6a153c47f8d597c827bdcaf8c4e42ac87f738Lennart Poettering                                if (!a->link->manager->llmnr_host_ipv4_key) {
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                        r = -ENOMEM;
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                        goto fail;
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                }
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                        }
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                        if (!a->llmnr_address_rr) {
78c6a153c47f8d597c827bdcaf8c4e42ac87f738Lennart Poettering                                a->llmnr_address_rr = dns_resource_record_new(a->link->manager->llmnr_host_ipv4_key);
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                if (!a->llmnr_address_rr) {
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                        r = -ENOMEM;
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                        goto fail;
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                }
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                a->llmnr_address_rr->a.in_addr = a->in_addr.in;
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                a->llmnr_address_rr->ttl = LLMNR_DEFAULT_TTL;
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                        }
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                        if (!a->llmnr_ptr_rr) {
78c6a153c47f8d597c827bdcaf8c4e42ac87f738Lennart Poettering                                r = dns_resource_record_new_reverse(&a->llmnr_ptr_rr, a->family, &a->in_addr, a->link->manager->llmnr_hostname);
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                if (r < 0)
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                        goto fail;
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                a->llmnr_ptr_rr->ttl = LLMNR_DEFAULT_TTL;
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                        }
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                        r = dns_zone_put(&a->link->llmnr_ipv4_scope->zone, a->link->llmnr_ipv4_scope, a->llmnr_address_rr, true);
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                        if (r < 0)
da927ba997d68401563b927f92e6e40e021a8e5cMichal Schmidt                                log_warning_errno(r, "Failed to add A record to LLMNR zone: %m");
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                        r = dns_zone_put(&a->link->llmnr_ipv4_scope->zone, a->link->llmnr_ipv4_scope, a->llmnr_ptr_rr, false);
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                        if (r < 0)
da927ba997d68401563b927f92e6e40e021a8e5cMichal Schmidt                                log_warning_errno(r, "Failed to add IPv6 PTR record to LLMNR zone: %m");
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                } else {
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                        if (a->llmnr_address_rr) {
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                if (a->link->llmnr_ipv4_scope)
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                        dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_address_rr);
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                a->llmnr_address_rr = dns_resource_record_unref(a->llmnr_address_rr);
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                        }
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                        if (a->llmnr_ptr_rr) {
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                if (a->link->llmnr_ipv4_scope)
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                        dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_ptr_rr);
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                a->llmnr_ptr_rr = dns_resource_record_unref(a->llmnr_ptr_rr);
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                        }
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                }
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering        }
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering        if (a->family == AF_INET6) {
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering                if (!force_remove &&
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering                    link_address_relevant(a) &&
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering                    a->link->llmnr_ipv6_scope &&
19b50b5ba7ee8c1bfb330377309e4bab7a7531d8Lennart Poettering                    a->link->llmnr_support == SUPPORT_YES &&
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering                    a->link->manager->llmnr_support == SUPPORT_YES) {
4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering
78c6a153c47f8d597c827bdcaf8c4e42ac87f738Lennart Poettering                        if (!a->link->manager->llmnr_host_ipv6_key) {
78c6a153c47f8d597c827bdcaf8c4e42ac87f738Lennart Poettering                                a->link->manager->llmnr_host_ipv6_key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_AAAA, a->link->manager->llmnr_hostname);
78c6a153c47f8d597c827bdcaf8c4e42ac87f738Lennart Poettering                                if (!a->link->manager->llmnr_host_ipv6_key) {
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                        r = -ENOMEM;
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                        goto fail;
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                }
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                        }
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                        if (!a->llmnr_address_rr) {
78c6a153c47f8d597c827bdcaf8c4e42ac87f738Lennart Poettering                                a->llmnr_address_rr = dns_resource_record_new(a->link->manager->llmnr_host_ipv6_key);
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                if (!a->llmnr_address_rr) {
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                        r = -ENOMEM;
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                        goto fail;
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                }
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                a->llmnr_address_rr->aaaa.in6_addr = a->in_addr.in6;
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                a->llmnr_address_rr->ttl = LLMNR_DEFAULT_TTL;
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                        }
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                        if (!a->llmnr_ptr_rr) {
78c6a153c47f8d597c827bdcaf8c4e42ac87f738Lennart Poettering                                r = dns_resource_record_new_reverse(&a->llmnr_ptr_rr, a->family, &a->in_addr, a->link->manager->llmnr_hostname);
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                if (r < 0)
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                        goto fail;
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                a->llmnr_ptr_rr->ttl = LLMNR_DEFAULT_TTL;
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                        }
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                        r = dns_zone_put(&a->link->llmnr_ipv6_scope->zone, a->link->llmnr_ipv6_scope, a->llmnr_address_rr, true);
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                        if (r < 0)
da927ba997d68401563b927f92e6e40e021a8e5cMichal Schmidt                                log_warning_errno(r, "Failed to add AAAA record to LLMNR zone: %m");
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                        r = dns_zone_put(&a->link->llmnr_ipv6_scope->zone, a->link->llmnr_ipv6_scope, a->llmnr_ptr_rr, false);
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                        if (r < 0)
da927ba997d68401563b927f92e6e40e021a8e5cMichal Schmidt                                log_warning_errno(r, "Failed to add IPv6 PTR record to LLMNR zone: %m");
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                } else {
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                        if (a->llmnr_address_rr) {
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                if (a->link->llmnr_ipv6_scope)
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                        dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_address_rr);
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                a->llmnr_address_rr = dns_resource_record_unref(a->llmnr_address_rr);
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                        }
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                        if (a->llmnr_ptr_rr) {
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                if (a->link->llmnr_ipv6_scope)
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                        dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_ptr_rr);
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                                a->llmnr_ptr_rr = dns_resource_record_unref(a->llmnr_ptr_rr);
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering                        }
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering                }
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering        }
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering        return;
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poetteringfail:
da927ba997d68401563b927f92e6e40e021a8e5cMichal Schmidt        log_debug_errno(r, "Failed to update address RRs: %m");
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering}
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
1c4baffc1895809bae9ac36b670af90a4cb9cd7dTom Gundersenint link_address_update_rtnl(LinkAddress *a, sd_netlink_message *m) {
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        int r;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        assert(a);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        assert(m);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        r = sd_rtnl_message_addr_get_flags(m, &a->flags);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        if (r < 0)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                return r;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering        sd_rtnl_message_addr_get_scope(m, &a->scope);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
1716f6dcf54d4c181c2e2558e3d5414f54c8d9caLennart Poettering        link_allocate_scopes(a->link);
ec2c5e4398f9d65e5dfe61530f2556224733d1e6Lennart Poettering        link_add_rrs(a->link, false);
623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        return 0;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering}
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poetteringbool link_address_relevant(LinkAddress *a) {
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        assert(a);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
7b85d72f824cdf34554b349712b6b8e39095dbd4Lennart Poettering        if (a->flags & (IFA_F_DEPRECATED|IFA_F_TENTATIVE))
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                return false;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        if (IN_SET(a->scope, RT_SCOPE_HOST, RT_SCOPE_NOWHERE))
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering                return false;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering        return true;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering}