0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering#include <net/if.h>

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering#include "sd-network.h"

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering#include "alloc-util.h"

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering#include "missing.h"

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering#include "parse-util.h"

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering#include "resolved-link.h"

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering#include "string-util.h"

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering#include "strv.h"

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poetteringint link_new(Manager *m, Link **ret, int ifindex) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering _cleanup_(link_freep) Link *l = NULL;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering int r;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering assert(m);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering assert(ifindex > 0);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = hashmap_ensure_allocated(&m->links, NULL);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (r < 0)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return r;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering l = new0(Link, 1);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (!l)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return -ENOMEM;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

baed47c3c20512507e497058d388782400a072f6Lennart Poettering l->ifindex = ifindex;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering l->llmnr_support = RESOLVE_SUPPORT_YES;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering l->mdns_support = RESOLVE_SUPPORT_NO;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering l->dnssec_mode = _DNSSEC_MODE_INVALID;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = hashmap_put(m->links, INT_TO_PTR(ifindex), l);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (r < 0)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return r;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering l->manager = m;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (ret)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering *ret = l;

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering l = NULL;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

e627440b41bb0284e4892f7aa9d84c77972487e2Lennart Poettering return 0;

e627440b41bb0284e4892f7aa9d84c77972487e2Lennart Poettering}

e627440b41bb0284e4892f7aa9d84c77972487e2Lennart Poettering

e627440b41bb0284e4892f7aa9d84c77972487e2Lennart PoetteringLink *link_free(Link *l) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (!l)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return NULL;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering dns_server_unlink_all(l->dns_servers);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering dns_search_domain_unlink_all(l->search_domains);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering while (l->addresses)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering link_address_free(l->addresses);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (l->manager)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering hashmap_remove(l->manager->links, INT_TO_PTR(l->ifindex));

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering dns_scope_free(l->unicast_scope);

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering dns_scope_free(l->llmnr_ipv4_scope);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering dns_scope_free(l->llmnr_ipv6_scope);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering dns_scope_free(l->mdns_ipv4_scope);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering dns_scope_free(l->mdns_ipv6_scope);

baed47c3c20512507e497058d388782400a072f6Lennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering set_free_free(l->dnssec_negative_trust_anchors);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering free(l);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return NULL;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering}

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poetteringstatic void link_allocate_scopes(Link *l) {

b7c9ae91d111b3e89d1ffc00e08f9ed97a8ff5dbLennart Poettering int r;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering assert(l);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (l->dns_servers) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (!l->unicast_scope) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = dns_scope_new(l->manager, &l->unicast_scope, l, DNS_PROTOCOL_DNS, AF_UNSPEC);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (r < 0)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering log_warning_errno(r, "Failed to allocate DNS scope: %m");

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering }

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering } else

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering l->unicast_scope = dns_scope_free(l->unicast_scope);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

baed47c3c20512507e497058d388782400a072f6Lennart Poettering if (link_relevant(l, AF_INET) &&

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering l->llmnr_support != RESOLVE_SUPPORT_NO &&

baed47c3c20512507e497058d388782400a072f6Lennart Poettering l->manager->llmnr_support != RESOLVE_SUPPORT_NO) {

baed47c3c20512507e497058d388782400a072f6Lennart Poettering if (!l->llmnr_ipv4_scope) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = dns_scope_new(l->manager, &l->llmnr_ipv4_scope, l, DNS_PROTOCOL_LLMNR, AF_INET);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (r < 0)

baed47c3c20512507e497058d388782400a072f6Lennart Poettering log_warning_errno(r, "Failed to allocate LLMNR IPv4 scope: %m");

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering }

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering } else

baed47c3c20512507e497058d388782400a072f6Lennart Poettering l->llmnr_ipv4_scope = dns_scope_free(l->llmnr_ipv4_scope);

baed47c3c20512507e497058d388782400a072f6Lennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (link_relevant(l, AF_INET6) &&

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering l->llmnr_support != RESOLVE_SUPPORT_NO &&

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering l->manager->llmnr_support != RESOLVE_SUPPORT_NO &&

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering socket_ipv6_is_supported()) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (!l->llmnr_ipv6_scope) {

baed47c3c20512507e497058d388782400a072f6Lennart Poettering r = dns_scope_new(l->manager, &l->llmnr_ipv6_scope, l, DNS_PROTOCOL_LLMNR, AF_INET6);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (r < 0)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering log_warning_errno(r, "Failed to allocate LLMNR IPv6 scope: %m");

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering }

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering } else

baed47c3c20512507e497058d388782400a072f6Lennart Poettering l->llmnr_ipv6_scope = dns_scope_free(l->llmnr_ipv6_scope);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (link_relevant(l, AF_INET) &&

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering l->mdns_support != RESOLVE_SUPPORT_NO &&

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering l->manager->mdns_support != RESOLVE_SUPPORT_NO) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (!l->mdns_ipv4_scope) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = dns_scope_new(l->manager, &l->mdns_ipv4_scope, l, DNS_PROTOCOL_MDNS, AF_INET);

b7c9ae91d111b3e89d1ffc00e08f9ed97a8ff5dbLennart Poettering if (r < 0)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering log_warning_errno(r, "Failed to allocate mDNS IPv4 scope: %m");

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering }

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering } else

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering l->mdns_ipv4_scope = dns_scope_free(l->mdns_ipv4_scope);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (link_relevant(l, AF_INET6) &&

baed47c3c20512507e497058d388782400a072f6Lennart Poettering l->mdns_support != RESOLVE_SUPPORT_NO &&

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering l->manager->mdns_support != RESOLVE_SUPPORT_NO) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (!l->mdns_ipv6_scope) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = dns_scope_new(l->manager, &l->mdns_ipv6_scope, l, DNS_PROTOCOL_MDNS, AF_INET6);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (r < 0)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering log_warning_errno(r, "Failed to allocate mDNS IPv6 scope: %m");

baed47c3c20512507e497058d388782400a072f6Lennart Poettering }

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering } else

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering l->mdns_ipv6_scope = dns_scope_free(l->mdns_ipv6_scope);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering}

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poetteringvoid link_add_rrs(Link *l, bool force_remove) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering LinkAddress *a;

b7c9ae91d111b3e89d1ffc00e08f9ed97a8ff5dbLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering LIST_FOREACH(addresses, a, l->addresses)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering link_address_add_rrs(a, force_remove);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering}

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poetteringint link_update_rtnl(Link *l, sd_netlink_message *m) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering const char *n = NULL;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering int r;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering assert(l);

b7c9ae91d111b3e89d1ffc00e08f9ed97a8ff5dbLennart Poettering assert(m);

b7c9ae91d111b3e89d1ffc00e08f9ed97a8ff5dbLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = sd_rtnl_message_link_get_flags(m, &l->flags);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (r < 0)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return r;

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering sd_netlink_message_read_u32(m, IFLA_MTU, &l->mtu);

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering if (sd_netlink_message_read_string(m, IFLA_IFNAME, &n) >= 0) {

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering strncpy(l->name, n, sizeof(l->name)-1);

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering char_array_0(l->name);

baed47c3c20512507e497058d388782400a072f6Lennart Poettering }

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering link_allocate_scopes(l);

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering link_add_rrs(l, false);

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering return 0;

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering}

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poetteringstatic int link_update_dns_servers(Link *l) {

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering _cleanup_strv_free_ char **nameservers = NULL;

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering char **nameserver;

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering int r;

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering assert(l);

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering r = sd_network_link_get_dns(l->ifindex, &nameservers);

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering if (r == -ENODATA) {

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering r = 0;

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering goto clear;

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering }

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering if (r < 0)

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering goto clear;

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering dns_server_mark_all(l->dns_servers);

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering STRV_FOREACH(nameserver, nameservers) {

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering union in_addr_union a;

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering DnsServer *s;

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering int family;

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering r = in_addr_from_string_auto(*nameserver, &family, &a);

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering if (r < 0)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering goto clear;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering s = dns_server_find(l->dns_servers, family, &a);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (s)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering dns_server_move_back_and_unmark(s);

baed47c3c20512507e497058d388782400a072f6Lennart Poettering else {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = dns_server_new(l->manager, NULL, DNS_SERVER_LINK, l, family, &a);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (r < 0)

89fef99014662a5a63e7deaedd6292b7fb4ab2f8Lennart Poettering goto clear;

671e021c92c835c6c701dc61463149d05b6f31afLennart Poettering }

89fef99014662a5a63e7deaedd6292b7fb4ab2f8Lennart Poettering }

baed47c3c20512507e497058d388782400a072f6Lennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering dns_server_unlink_marked(l->dns_servers);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return 0;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poetteringclear:

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering dns_server_unlink_all(l->dns_servers);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return r;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering}

baed47c3c20512507e497058d388782400a072f6Lennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poetteringstatic int link_update_llmnr_support(Link *l) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering _cleanup_free_ char *b = NULL;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering int r;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering assert(l);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = sd_network_link_get_llmnr(l->ifindex, &b);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (r == -ENODATA) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = 0;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering goto clear;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering }

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (r < 0)

baed47c3c20512507e497058d388782400a072f6Lennart Poettering goto clear;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering l->llmnr_support = resolve_support_from_string(b);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (l->llmnr_support < 0) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = -EINVAL;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering goto clear;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering }

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return 0;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poetteringclear:

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering l->llmnr_support = RESOLVE_SUPPORT_YES;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return r;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering}

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poetteringstatic int link_update_mdns_support(Link *l) {

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering _cleanup_free_ char *b = NULL;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering int r;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering assert(l);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = sd_network_link_get_mdns(l->ifindex, &b);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (r == -ENODATA) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = 0;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering goto clear;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering }

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (r < 0)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering goto clear;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering l->mdns_support = resolve_support_from_string(b);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (l->mdns_support < 0) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = -EINVAL;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering goto clear;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering }

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering return 0;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poetteringclear:

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering l->mdns_support = RESOLVE_SUPPORT_NO;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return r;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering}

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poetteringstatic int link_update_dnssec_mode(Link *l) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering _cleanup_free_ char *m = NULL;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering DnssecMode mode;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering int r;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering assert(l);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

baed47c3c20512507e497058d388782400a072f6Lennart Poettering r = sd_network_link_get_dnssec(l->ifindex, &m);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (r == -ENODATA) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = 0;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering goto clear;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering }

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (r < 0)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering goto clear;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering mode = dnssec_mode_from_string(m);

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering if (mode < 0) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = -EINVAL;

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering goto clear;

14d10188de1fd58e663d73683a400d8d7dc67dbaLennart Poettering }

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if ((l->dnssec_mode == DNSSEC_NO && mode != DNSSEC_NO) ||

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering (l->dnssec_mode == DNSSEC_ALLOW_DOWNGRADE && mode == DNSSEC_YES)) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering /* When switching from non-DNSSEC mode to DNSSEC mode, flush the cache. Also when switching from the

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (l->unicast_scope)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering dns_cache_flush(&l->unicast_scope->cache);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering }

baed47c3c20512507e497058d388782400a072f6Lennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering l->dnssec_mode = mode;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return 0;

baed47c3c20512507e497058d388782400a072f6Lennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poetteringclear:

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering l->dnssec_mode = _DNSSEC_MODE_INVALID;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return r;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering}

baed47c3c20512507e497058d388782400a072f6Lennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poetteringstatic int link_update_dnssec_negative_trust_anchors(Link *l) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering _cleanup_strv_free_ char **ntas = NULL;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering _cleanup_set_free_free_ Set *ns = NULL;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering char **i;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering int r;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

baed47c3c20512507e497058d388782400a072f6Lennart Poettering assert(l);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = sd_network_link_get_dnssec_negative_trust_anchors(l->ifindex, &ntas);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (r == -ENODATA) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = 0;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering goto clear;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering }

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (r < 0)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering goto clear;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering ns = set_new(&dns_name_hash_ops);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (!ns)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return -ENOMEM;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering STRV_FOREACH(i, ntas) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = set_put_strdup(ns, *i);

baed47c3c20512507e497058d388782400a072f6Lennart Poettering if (r < 0)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return r;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering }

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering set_free_free(l->dnssec_negative_trust_anchors);

baed47c3c20512507e497058d388782400a072f6Lennart Poettering l->dnssec_negative_trust_anchors = ns;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering ns = NULL;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return 0;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poetteringclear:

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering l->dnssec_negative_trust_anchors = set_free_free(l->dnssec_negative_trust_anchors);

baed47c3c20512507e497058d388782400a072f6Lennart Poettering return r;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering}

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poetteringstatic int link_update_search_domains(Link *l) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering _cleanup_strv_free_ char **domains = NULL;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering char **i;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering int r;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering assert(l);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

baed47c3c20512507e497058d388782400a072f6Lennart Poettering r = sd_network_link_get_domains(l->ifindex, &domains);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (r == -ENODATA) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering /* networkd knows nothing about this interface, and that's fine. */

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = 0;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering goto clear;

3e4b9b506d676d1cb8692306b38c05f8529e5cdbLennart Poettering }

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (r < 0)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering goto clear;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering dns_search_domain_mark_all(l->search_domains);

baed47c3c20512507e497058d388782400a072f6Lennart Poettering

baed47c3c20512507e497058d388782400a072f6Lennart Poettering STRV_FOREACH(i, domains) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering DnsSearchDomain *d;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = dns_search_domain_find(l->search_domains, *i, &d);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (r < 0)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering goto clear;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (r > 0)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering dns_search_domain_move_back_and_unmark(d);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering else {

baed47c3c20512507e497058d388782400a072f6Lennart Poettering r = dns_search_domain_new(l->manager, NULL, DNS_SEARCH_DOMAIN_LINK, l, *i);

baed47c3c20512507e497058d388782400a072f6Lennart Poettering if (r < 0)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering goto clear;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering }

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering }

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

baed47c3c20512507e497058d388782400a072f6Lennart Poettering dns_search_domain_unlink_marked(l->search_domains);

baed47c3c20512507e497058d388782400a072f6Lennart Poettering return 0;

baed47c3c20512507e497058d388782400a072f6Lennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poetteringclear:

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering dns_search_domain_unlink_all(l->search_domains);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return r;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering}

baed47c3c20512507e497058d388782400a072f6Lennart Poettering

baed47c3c20512507e497058d388782400a072f6Lennart Poetteringint link_update_monitor(Link *l) {

b7c9ae91d111b3e89d1ffc00e08f9ed97a8ff5dbLennart Poettering int r;

baed47c3c20512507e497058d388782400a072f6Lennart Poettering

baed47c3c20512507e497058d388782400a072f6Lennart Poettering assert(l);

b7c9ae91d111b3e89d1ffc00e08f9ed97a8ff5dbLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = link_update_dns_servers(l);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (r < 0)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering log_warning_errno(r, "Failed to read DNS servers for interface %s, ignoring: %m", l->name);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

baed47c3c20512507e497058d388782400a072f6Lennart Poettering r = link_update_llmnr_support(l);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (r < 0)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering log_warning_errno(r, "Failed to read LLMNR support for interface %s, ignoring: %m", l->name);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = link_update_mdns_support(l);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (r < 0)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering log_warning_errno(r, "Failed to read mDNS support for interface %s, ignoring: %m", l->name);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering r = link_update_dnssec_mode(l);

72fbdd3349ad30d8a5074ea9a650f0909f96c299Lennart Poettering if (r < 0)

72fbdd3349ad30d8a5074ea9a650f0909f96c299Lennart Poettering log_warning_errno(r, "Failed to read DNSSEC mode for interface %s, ignoring: %m", l->name);

72fbdd3349ad30d8a5074ea9a650f0909f96c299Lennart Poettering

72fbdd3349ad30d8a5074ea9a650f0909f96c299Lennart Poettering r = link_update_dnssec_negative_trust_anchors(l);

72fbdd3349ad30d8a5074ea9a650f0909f96c299Lennart Poettering if (r < 0)

72fbdd3349ad30d8a5074ea9a650f0909f96c299Lennart Poettering log_warning_errno(r, "Failed to read DNSSEC negative trust anchors for interface %s, ignoring: %m", l->name);

72fbdd3349ad30d8a5074ea9a650f0909f96c299Lennart Poettering

72fbdd3349ad30d8a5074ea9a650f0909f96c299Lennart Poettering r = link_update_search_domains(l);

72fbdd3349ad30d8a5074ea9a650f0909f96c299Lennart Poettering if (r < 0)

72fbdd3349ad30d8a5074ea9a650f0909f96c299Lennart Poettering log_warning_errno(r, "Failed to read search domains for interface %s, ignoring: %m", l->name);

72fbdd3349ad30d8a5074ea9a650f0909f96c299Lennart Poettering

72fbdd3349ad30d8a5074ea9a650f0909f96c299Lennart Poettering link_allocate_scopes(l);

baed47c3c20512507e497058d388782400a072f6Lennart Poettering link_add_rrs(l, false);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return 0;

baed47c3c20512507e497058d388782400a072f6Lennart Poettering}

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poetteringbool link_relevant(Link *l, int family) {

72fbdd3349ad30d8a5074ea9a650f0909f96c299Lennart Poettering _cleanup_free_ char *state = NULL;

72fbdd3349ad30d8a5074ea9a650f0909f96c299Lennart Poettering LinkAddress *a;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering assert(l);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering /* A link is relevant if it isn't a loopback or pointopoint

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (l->flags & (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_DORMANT))

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return false;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if ((l->flags & (IFF_UP|IFF_LOWER_UP|IFF_MULTICAST)) != (IFF_UP|IFF_LOWER_UP|IFF_MULTICAST))

baed47c3c20512507e497058d388782400a072f6Lennart Poettering return false;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering sd_network_link_get_operational_state(l->ifindex, &state);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (state && !STR_IN_SET(state, "unknown", "degraded", "routable"))

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return false;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering LIST_FOREACH(addresses, a, l->addresses)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (a->family == family && link_address_relevant(a))

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return true;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return false;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering}

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart PoetteringLinkAddress *link_find_address(Link *l, int family, const union in_addr_union *in_addr) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering LinkAddress *a;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering assert(l);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering LIST_FOREACH(addresses, a, l->addresses)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (a->family == family && in_addr_equal(family, &a->in_addr, in_addr))

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return a;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return NULL;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering}

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart PoetteringDnsServer* link_set_dns_server(Link *l, DnsServer *s) {

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering assert(l);

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (l->current_dns_server == s)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering return s;

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering if (s)

0284adc6a60ce0af1107cb0b50041a65d731f39eLennart Poettering log_info("Switching to DNS server %s for interface %s.", dns_server_string(s), l->name);

4da416aa20b956571d74720bc91222881443e24bLennart Poettering

4da416aa20b956571d74720bc91222881443e24bLennart Poettering dns_server_unref(l->current_dns_server);

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering l->current_dns_server = dns_server_ref(s);

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering if (l->unicast_scope)

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering dns_cache_flush(&l->unicast_scope->cache);

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering return s;

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering}

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart PoetteringDnsServer *link_get_dns_server(Link *l) {

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering assert(l);

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering if (!l->current_dns_server)

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering link_set_dns_server(l, l->dns_servers);

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering return l->current_dns_server;

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering}

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poetteringvoid link_next_dns_server(Link *l) {

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering assert(l);

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering if (!l->current_dns_server)

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering return;

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering /* Change to the next one, but make sure to follow the linked

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering if (l->current_dns_server->linked && l->current_dns_server->servers_next) {

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering link_set_dns_server(l, l->current_dns_server->servers_next);

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering return;

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering }

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering link_set_dns_server(l, l->dns_servers);

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering}

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poetteringint link_address_new(Link *l, LinkAddress **ret, int family, const union in_addr_union *in_addr) {

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering LinkAddress *a;

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering assert(l);

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering assert(in_addr);

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering a = new0(LinkAddress, 1);

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering if (!a)

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering return -ENOMEM;

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering a->family = family;

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering a->in_addr = *in_addr;

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering a->link = l;

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering LIST_PREPEND(addresses, l->addresses, a);

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering if (ret)

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering *ret = a;

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering return 0;

feb12d3ed2c7f9132c64773c7c41b9e3a608a814Lennart Poettering}

4da416aa20b956571d74720bc91222881443e24bLennart Poettering

89fef99014662a5a63e7deaedd6292b7fb4ab2f8Lennart PoetteringLinkAddress *link_address_free(LinkAddress *a) {

89fef99014662a5a63e7deaedd6292b7fb4ab2f8Lennart Poettering if (!a)

89fef99014662a5a63e7deaedd6292b7fb4ab2f8Lennart Poettering return NULL;

89fef99014662a5a63e7deaedd6292b7fb4ab2f8Lennart Poettering

89fef99014662a5a63e7deaedd6292b7fb4ab2f8Lennart Poettering if (a->link) {

89fef99014662a5a63e7deaedd6292b7fb4ab2f8Lennart Poettering LIST_REMOVE(addresses, a->link->addresses, a);

89fef99014662a5a63e7deaedd6292b7fb4ab2f8Lennart Poettering

89fef99014662a5a63e7deaedd6292b7fb4ab2f8Lennart Poettering if (a->llmnr_address_rr) {

89fef99014662a5a63e7deaedd6292b7fb4ab2f8Lennart Poettering if (a->family == AF_INET && a->link->llmnr_ipv4_scope)

89fef99014662a5a63e7deaedd6292b7fb4ab2f8Lennart Poettering dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_address_rr);

89fef99014662a5a63e7deaedd6292b7fb4ab2f8Lennart Poettering else if (a->family == AF_INET6 && a->link->llmnr_ipv6_scope)

89fef99014662a5a63e7deaedd6292b7fb4ab2f8Lennart Poettering dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_address_rr);

89fef99014662a5a63e7deaedd6292b7fb4ab2f8Lennart Poettering }

89fef99014662a5a63e7deaedd6292b7fb4ab2f8Lennart Poettering

89fef99014662a5a63e7deaedd6292b7fb4ab2f8Lennart Poettering if (a->llmnr_ptr_rr) {

89fef99014662a5a63e7deaedd6292b7fb4ab2f8Lennart Poettering if (a->family == AF_INET && a->link->llmnr_ipv4_scope)

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

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

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

}

}

dns_resource_record_unref(a->llmnr_address_rr);

dns_resource_record_unref(a->llmnr_ptr_rr);

free(a);

return NULL;

}

void link_address_add_rrs(LinkAddress *a, bool force_remove) {

int r;

assert(a);

if (a->family == AF_INET) {

if (!force_remove &&

link_address_relevant(a) &&

a->link->llmnr_ipv4_scope &&

a->link->llmnr_support == RESOLVE_SUPPORT_YES &&

a->link->manager->llmnr_support == RESOLVE_SUPPORT_YES) {

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

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

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

r = -ENOMEM;

goto fail;

}

}

if (!a->llmnr_address_rr) {

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

if (!a->llmnr_address_rr) {

r = -ENOMEM;

goto fail;

}

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

a->llmnr_address_rr->ttl = LLMNR_DEFAULT_TTL;

}

if (!a->llmnr_ptr_rr) {

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

if (r < 0)

goto fail;

a->llmnr_ptr_rr->ttl = LLMNR_DEFAULT_TTL;

}

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

if (r < 0)

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

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

if (r < 0)

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

} else {

if (a->llmnr_address_rr) {

if (a->link->llmnr_ipv4_scope)

dns_zone_remove_rr(&a->link->llmnr_ipv4_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_ipv4_scope)

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

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

}

}

}

if (a->family == AF_INET6) {

if (!force_remove &&

link_address_relevant(a) &&

a->link->llmnr_ipv6_scope &&

a->link->llmnr_support == RESOLVE_SUPPORT_YES &&

a->link->manager->llmnr_support == RESOLVE_SUPPORT_YES) {

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

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

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

r = -ENOMEM;

goto fail;

}

}

if (!a->llmnr_address_rr) {

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

if (!a->llmnr_address_rr) {

r = -ENOMEM;

goto fail;

}

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

a->llmnr_address_rr->ttl = LLMNR_DEFAULT_TTL;

}

if (!a->llmnr_ptr_rr) {

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

if (r < 0)

goto fail;

a->llmnr_ptr_rr->ttl = LLMNR_DEFAULT_TTL;

}

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

if (r < 0)

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

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

if (r < 0)

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

} else {

if (a->llmnr_address_rr) {

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;

}