7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering#include <net/if.h>

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering#include "sd-network.h"

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering#include "missing.h"

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering#include "resolved-link.h"

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering#include "string-util.h"

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering#include "strv.h"

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poetteringint link_new(Manager *m, Link **ret, int ifindex) {

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering _cleanup_(link_freep) Link *l = NULL;

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering int r;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

bb99a35a873c35e80b0b47fe045081022660374dLennart Poettering assert(m);

bb99a35a873c35e80b0b47fe045081022660374dLennart Poettering assert(ifindex > 0);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering r = hashmap_ensure_allocated(&m->links, NULL);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (r < 0)

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering return r;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering l = new0(Link, 1);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (!l)

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering return -ENOMEM;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering l->ifindex = ifindex;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering l->llmnr_support = SUPPORT_YES;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering r = hashmap_put(m->links, INT_TO_PTR(ifindex), l);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (r < 0)

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering return r;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering l->manager = m;

bb99a35a873c35e80b0b47fe045081022660374dLennart Poettering

bb99a35a873c35e80b0b47fe045081022660374dLennart Poettering if (ret)

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering *ret = l;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering l = NULL;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering return 0;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering}

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart PoetteringLink *link_free(Link *l) {

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (!l)

a5344d2c3b0f14e954ce1c0ef905c5b44bc5bf0aLennart Poettering return NULL;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering while (l->addresses)

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering link_address_free(l->addresses);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

d0bbc21caa6e68693a47db60c93e99422bf2a858Lennart Poettering if (l->manager)

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering hashmap_remove(l->manager->links, INT_TO_PTR(l->ifindex));

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering while (l->dns_servers) {

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering DnsServer *s = l->dns_servers;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

a5344d2c3b0f14e954ce1c0ef905c5b44bc5bf0aLennart Poettering LIST_REMOVE(servers, l->dns_servers, s);

d0bbc21caa6e68693a47db60c93e99422bf2a858Lennart Poettering dns_server_unref(s);

d0bbc21caa6e68693a47db60c93e99422bf2a858Lennart Poettering }

d0bbc21caa6e68693a47db60c93e99422bf2a858Lennart Poettering

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering dns_scope_free(l->unicast_scope);

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering dns_scope_free(l->llmnr_ipv4_scope);

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering dns_scope_free(l->llmnr_ipv6_scope);

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering free(l);

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering return NULL;

d0bbc21caa6e68693a47db60c93e99422bf2a858Lennart Poettering}

d0bbc21caa6e68693a47db60c93e99422bf2a858Lennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poetteringstatic void link_allocate_scopes(Link *l) {

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering int r;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering assert(l);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (l->dns_servers) {

d0bbc21caa6e68693a47db60c93e99422bf2a858Lennart Poettering if (!l->unicast_scope) {

d0bbc21caa6e68693a47db60c93e99422bf2a858Lennart Poettering r = dns_scope_new(l->manager, &l->unicast_scope, l, DNS_PROTOCOL_DNS, AF_UNSPEC);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (r < 0)

d0bbc21caa6e68693a47db60c93e99422bf2a858Lennart Poettering log_warning_errno(r, "Failed to allocate DNS scope: %m");

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering }

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering } else

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering l->unicast_scope = dns_scope_free(l->unicast_scope);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (link_relevant(l, AF_INET) &&

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering l->llmnr_support != SUPPORT_NO &&

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering l->manager->llmnr_support != SUPPORT_NO) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (!l->llmnr_ipv4_scope) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering r = dns_scope_new(l->manager, &l->llmnr_ipv4_scope, l, DNS_PROTOCOL_LLMNR, AF_INET);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (r < 0)

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering log_warning_errno(r, "Failed to allocate LLMNR IPv4 scope: %m");

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering }

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering } else

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering l->llmnr_ipv4_scope = dns_scope_free(l->llmnr_ipv4_scope);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (link_relevant(l, AF_INET6) &&

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering l->llmnr_support != SUPPORT_NO &&

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering l->manager->llmnr_support != SUPPORT_NO &&

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering socket_ipv6_is_supported()) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (!l->llmnr_ipv6_scope) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering r = dns_scope_new(l->manager, &l->llmnr_ipv6_scope, l, DNS_PROTOCOL_LLMNR, AF_INET6);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (r < 0)

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering log_warning_errno(r, "Failed to allocate LLMNR IPv6 scope: %m");

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering }

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering } else

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering l->llmnr_ipv6_scope = dns_scope_free(l->llmnr_ipv6_scope);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering}

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poetteringvoid link_add_rrs(Link *l, bool force_remove) {

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering LinkAddress *a;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering LIST_FOREACH(addresses, a, l->addresses)

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering link_address_add_rrs(a, force_remove);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering}

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poetteringint link_update_rtnl(Link *l, sd_netlink_message *m) {

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering const char *n = NULL;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering int r;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering assert(l);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering assert(m);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering r = sd_rtnl_message_link_get_flags(m, &l->flags);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (r < 0)

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering return r;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering sd_netlink_message_read_u32(m, IFLA_MTU, &l->mtu);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (sd_netlink_message_read_string(m, IFLA_IFNAME, &n) >= 0) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering strncpy(l->name, n, sizeof(l->name)-1);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering char_array_0(l->name);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering }

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering link_allocate_scopes(l);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering link_add_rrs(l, false);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering return 0;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering}

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poetteringstatic int link_update_dns_servers(Link *l) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering _cleanup_strv_free_ char **nameservers = NULL;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering char **nameserver;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering DnsServer *s, *nx;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering int r;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering assert(l);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering r = sd_network_link_get_dns(l->ifindex, &nameservers);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (r < 0)

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering goto clear;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering LIST_FOREACH(servers, s, l->dns_servers)

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering s->marked = true;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering STRV_FOREACH(nameserver, nameservers) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering union in_addr_union a;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering int family;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering r = in_addr_from_string_auto(*nameserver, &family, &a);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (r < 0)

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering goto clear;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering s = link_find_dns_server(l, family, &a);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (s)

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering s->marked = false;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering else {

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering r = dns_server_new(l->manager, NULL, DNS_SERVER_LINK, l, family, &a);

a5344d2c3b0f14e954ce1c0ef905c5b44bc5bf0aLennart Poettering if (r < 0)

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering goto clear;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering }

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering }

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering LIST_FOREACH_SAFE(servers, s, nx, l->dns_servers)

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (s->marked) {

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering LIST_REMOVE(servers, l->dns_servers, s);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering dns_server_unref(s);

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering }

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering return 0;

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poetteringclear:

9058851be7821edac08c1fa7ecafe5cba9ab9022Lennart Poettering while (l->dns_servers) {

9058851be7821edac08c1fa7ecafe5cba9ab9022Lennart Poettering s = l->dns_servers;

9058851be7821edac08c1fa7ecafe5cba9ab9022Lennart Poettering

9058851be7821edac08c1fa7ecafe5cba9ab9022Lennart Poettering LIST_REMOVE(servers, l->dns_servers, s);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering dns_server_unref(s);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering }

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering return r;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering}

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poetteringstatic int link_update_llmnr_support(Link *l) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering _cleanup_free_ char *b = NULL;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering int r;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering assert(l);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering r = sd_network_link_get_llmnr(l->ifindex, &b);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (r < 0)

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering goto clear;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering r = parse_boolean(b);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (r < 0) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (streq(b, "resolve"))

a5344d2c3b0f14e954ce1c0ef905c5b44bc5bf0aLennart Poettering l->llmnr_support = SUPPORT_RESOLVE;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering else

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering goto clear;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering } else if (r > 0)

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering l->llmnr_support = SUPPORT_YES;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering else

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering l->llmnr_support = SUPPORT_NO;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering return 0;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poetteringclear:

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering l->llmnr_support = SUPPORT_YES;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering return r;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering}

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poetteringstatic int link_update_domains(Link *l) {

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering int r;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (!l->unicast_scope)

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering return 0;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering l->unicast_scope->domains = strv_free(l->unicast_scope->domains);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering r = sd_network_link_get_domains(l->ifindex,

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering &l->unicast_scope->domains);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (r < 0)

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering return r;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering return 0;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering}

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poetteringint link_update_monitor(Link *l) {

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering assert(l);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering link_update_dns_servers(l);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering link_update_llmnr_support(l);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering link_allocate_scopes(l);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering link_update_domains(l);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering link_add_rrs(l, false);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering return 0;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering}

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poetteringbool link_relevant(Link *l, int family) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering _cleanup_free_ char *state = NULL;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering LinkAddress *a;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering assert(l);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

5ba081b0fb02380cee4c2ff5bc7e05f869eb8415Lennart Poettering /* A link is relevant if it isn't a loopback or pointopoint

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (l->flags & (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_DORMANT))

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering return false;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if ((l->flags & (IFF_UP|IFF_LOWER_UP|IFF_MULTICAST)) != (IFF_UP|IFF_LOWER_UP|IFF_MULTICAST))

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering return false;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering sd_network_link_get_operational_state(l->ifindex, &state);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (state && !STR_IN_SET(state, "unknown", "degraded", "routable"))

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering return false;

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering LIST_FOREACH(addresses, a, l->addresses)

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (a->family == family && link_address_relevant(a))

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering return true;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering return false;

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering}

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering

0dad12c190b7493955cd60d2a1625199b1709f69Lennart PoetteringLinkAddress *link_find_address(Link *l, int family, const union in_addr_union *in_addr) {

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering LinkAddress *a;

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering assert(l);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering LIST_FOREACH(addresses, a, l->addresses)

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (a->family == family && in_addr_equal(family, &a->in_addr, in_addr))

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering return a;

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering return NULL;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering}

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

0dad12c190b7493955cd60d2a1625199b1709f69Lennart PoetteringDnsServer* link_find_dns_server(Link *l, int family, const union in_addr_union *in_addr) {

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering DnsServer *s;

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering assert(l);

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering LIST_FOREACH(servers, s, l->dns_servers)

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (s->family == family && in_addr_equal(family, &s->address, in_addr))

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering return s;

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering return NULL;

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering}

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering

0dad12c190b7493955cd60d2a1625199b1709f69Lennart PoetteringDnsServer* link_set_dns_server(Link *l, DnsServer *s) {

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering assert(l);

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering if (l->current_dns_server == s)

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering return s;

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering if (s) {

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering _cleanup_free_ char *ip = NULL;

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering in_addr_to_string(s->family, &s->address, &ip);

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering log_info("Switching to DNS server %s for interface %s.", strna(ip), l->name);

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering }

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering l->current_dns_server = s;

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering if (l->unicast_scope)

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering dns_cache_flush(&l->unicast_scope->cache);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering return s;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering}

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart PoetteringDnsServer *link_get_dns_server(Link *l) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering assert(l);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (!l->current_dns_server)

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering link_set_dns_server(l, l->dns_servers);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering return l->current_dns_server;

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering}

4cd9a9d9ecf3a8835e21930f3215a5f5b74144beLennart Poettering

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poetteringvoid link_next_dns_server(Link *l) {

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering assert(l);

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering if (!l->current_dns_server)

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering return;

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering if (l->current_dns_server->servers_next) {

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering link_set_dns_server(l, l->current_dns_server->servers_next);

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering return;

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering }

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering link_set_dns_server(l, l->dns_servers);

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering}

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poetteringint link_address_new(Link *l, LinkAddress **ret, int family, const union in_addr_union *in_addr) {

259d2e762041d8d50c2a17bfea90b1a96f6b880bLennart Poettering LinkAddress *a;

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering assert(l);

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering assert(in_addr);

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering a = new0(LinkAddress, 1);

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering if (!a)

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering return -ENOMEM;

86b9b8e70d54e79db3ff4f67bbd5280ecfc82537Lennart Poettering

86b9b8e70d54e79db3ff4f67bbd5280ecfc82537Lennart Poettering a->family = family;

86b9b8e70d54e79db3ff4f67bbd5280ecfc82537Lennart Poettering a->in_addr = *in_addr;

86b9b8e70d54e79db3ff4f67bbd5280ecfc82537Lennart Poettering

86b9b8e70d54e79db3ff4f67bbd5280ecfc82537Lennart Poettering a->link = l;

bb99a35a873c35e80b0b47fe045081022660374dLennart Poettering LIST_PREPEND(addresses, l->addresses, a);

bb99a35a873c35e80b0b47fe045081022660374dLennart Poettering

4cd9a9d9ecf3a8835e21930f3215a5f5b74144beLennart Poettering if (ret)

4cd9a9d9ecf3a8835e21930f3215a5f5b74144beLennart Poettering *ret = a;

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering

4cd9a9d9ecf3a8835e21930f3215a5f5b74144beLennart Poettering return 0;

224f2ee221e77c326d1d7761abb6e812432b2163Lennart Poettering}

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering

4cd9a9d9ecf3a8835e21930f3215a5f5b74144beLennart PoetteringLinkAddress *link_address_free(LinkAddress *a) {

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering if (!a)

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering return NULL;

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering

4cd9a9d9ecf3a8835e21930f3215a5f5b74144beLennart Poettering if (a->link) {

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering LIST_REMOVE(addresses, a->link->addresses, a);

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering if (a->llmnr_address_rr) {

224f2ee221e77c326d1d7761abb6e812432b2163Lennart Poettering if (a->family == AF_INET && a->link->llmnr_ipv4_scope)

224f2ee221e77c326d1d7761abb6e812432b2163Lennart Poettering dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_address_rr);

224f2ee221e77c326d1d7761abb6e812432b2163Lennart Poettering else if (a->family == AF_INET6 && a->link->llmnr_ipv6_scope)

224f2ee221e77c326d1d7761abb6e812432b2163Lennart Poettering dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_address_rr);

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering }

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering if (a->llmnr_ptr_rr) {

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering if (a->family == AF_INET && a->link->llmnr_ipv4_scope)

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_ptr_rr);

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering else if (a->family == AF_INET6 && a->link->llmnr_ipv6_scope)

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_ptr_rr);

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering }

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering }

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering dns_resource_record_unref(a->llmnr_address_rr);

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering dns_resource_record_unref(a->llmnr_ptr_rr);

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering free(a);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering return NULL;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering}

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poetteringvoid link_address_add_rrs(LinkAddress *a, bool force_remove) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering int r;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering assert(a);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (a->family == AF_INET) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (!force_remove &&

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering link_address_relevant(a) &&

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering a->link->llmnr_ipv4_scope &&

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering a->link->llmnr_support == SUPPORT_YES &&

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering a->link->manager->llmnr_support == SUPPORT_YES) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (!a->link->manager->llmnr_host_ipv4_key) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering a->link->manager->llmnr_host_ipv4_key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_A, a->link->manager->llmnr_hostname);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (!a->link->manager->llmnr_host_ipv4_key) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering r = -ENOMEM;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering goto fail;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering }

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering }

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (!a->llmnr_address_rr) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering a->llmnr_address_rr = dns_resource_record_new(a->link->manager->llmnr_host_ipv4_key);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (!a->llmnr_address_rr) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering r = -ENOMEM;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering goto fail;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering }

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering a->llmnr_address_rr->a.in_addr = a->in_addr.in;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering a->llmnr_address_rr->ttl = LLMNR_DEFAULT_TTL;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering }

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (!a->llmnr_ptr_rr) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering r = dns_resource_record_new_reverse(&a->llmnr_ptr_rr, a->family, &a->in_addr, a->link->manager->llmnr_hostname);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (r < 0)

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering goto fail;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering a->llmnr_ptr_rr->ttl = LLMNR_DEFAULT_TTL;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering }

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering r = dns_zone_put(&a->link->llmnr_ipv4_scope->zone, a->link->llmnr_ipv4_scope, a->llmnr_address_rr, true);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (r < 0)

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering log_warning_errno(r, "Failed to add A record to LLMNR zone: %m");

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering r = dns_zone_put(&a->link->llmnr_ipv4_scope->zone, a->link->llmnr_ipv4_scope, a->llmnr_ptr_rr, false);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (r < 0)

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering log_warning_errno(r, "Failed to add IPv6 PTR record to LLMNR zone: %m");

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering } else {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (a->llmnr_address_rr) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (a->link->llmnr_ipv4_scope)

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_address_rr);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering a->llmnr_address_rr = dns_resource_record_unref(a->llmnr_address_rr);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering }

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (a->llmnr_ptr_rr) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (a->link->llmnr_ipv4_scope)

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_ptr_rr);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering a->llmnr_ptr_rr = dns_resource_record_unref(a->llmnr_ptr_rr);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering }

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering }

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering }

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (a->family == AF_INET6) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (!force_remove &&

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering link_address_relevant(a) &&

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering a->link->llmnr_ipv6_scope &&

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering a->link->llmnr_support == SUPPORT_YES &&

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering a->link->manager->llmnr_support == SUPPORT_YES) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (!a->link->manager->llmnr_host_ipv6_key) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering a->link->manager->llmnr_host_ipv6_key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_AAAA, a->link->manager->llmnr_hostname);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (!a->link->manager->llmnr_host_ipv6_key) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering r = -ENOMEM;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering goto fail;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering }

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering }

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (!a->llmnr_address_rr) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering a->llmnr_address_rr = dns_resource_record_new(a->link->manager->llmnr_host_ipv6_key);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (!a->llmnr_address_rr) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering r = -ENOMEM;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering goto fail;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering }

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering a->llmnr_address_rr->aaaa.in6_addr = a->in_addr.in6;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering a->llmnr_address_rr->ttl = LLMNR_DEFAULT_TTL;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering }

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (!a->llmnr_ptr_rr) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering r = dns_resource_record_new_reverse(&a->llmnr_ptr_rr, a->family, &a->in_addr, a->link->manager->llmnr_hostname);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (r < 0)

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering goto fail;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering a->llmnr_ptr_rr->ttl = LLMNR_DEFAULT_TTL;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering }

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering r = dns_zone_put(&a->link->llmnr_ipv6_scope->zone, a->link->llmnr_ipv6_scope, a->llmnr_address_rr, true);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (r < 0)

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering log_warning_errno(r, "Failed to add AAAA record to LLMNR zone: %m");

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering r = dns_zone_put(&a->link->llmnr_ipv6_scope->zone, a->link->llmnr_ipv6_scope, a->llmnr_ptr_rr, false);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (r < 0)

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering log_warning_errno(r, "Failed to add IPv6 PTR record to LLMNR zone: %m");

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering } else {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (a->llmnr_address_rr) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (a->link->llmnr_ipv6_scope)

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

a->llmnr_address_rr = dns_resource_record_unref(a->llmnr_address_rr);

}

if (a->llmnr_ptr_rr) {

if (a->link->llmnr_ipv6_scope)

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

a->llmnr_ptr_rr = dns_resource_record_unref(a->llmnr_ptr_rr);

}

}

}

return;

fail:

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

}

int link_address_update_rtnl(LinkAddress *a, sd_netlink_message *m) {

int r;

assert(a);

assert(m);

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

if (r < 0)

return r;

sd_rtnl_message_addr_get_scope(m, &a->scope);

link_allocate_scopes(a->link);

link_add_rrs(a->link, false);

return 0;

}

bool link_address_relevant(LinkAddress *a) {

assert(a);

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

return false;

if (IN_SET(a->scope, RT_SCOPE_HOST, RT_SCOPE_NOWHERE))

return false;

return true;

}