7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

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

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

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

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering#include "alloc-util.h"

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering#include "missing.h"

72f1d5a2880d103dc1c1746f5c02e192e054705eLennart Poettering#include "parse-util.h"

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering#include "resolved-link.h"

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering#include "string-util.h"

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering#include "strv.h"

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

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

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering _cleanup_(link_freep) Link *l = NULL;

a09abc4ae0bdc0200324eaa0416f23ff2170ec4eLennart Poettering int r;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

bb99a35a873c35e80b0b47fe045081022660374dLennart Poettering assert(m);

bb99a35a873c35e80b0b47fe045081022660374dLennart Poettering assert(ifindex > 0);

3ed08c446cfaaae2b234fdfeb0c34ab6b4748c3eLennart Poettering

3ed08c446cfaaae2b234fdfeb0c34ab6b4748c3eLennart Poettering r = hashmap_ensure_allocated(&m->links, NULL);

3ed08c446cfaaae2b234fdfeb0c34ab6b4748c3eLennart Poettering if (r < 0)

3ed08c446cfaaae2b234fdfeb0c34ab6b4748c3eLennart Poettering return r;

3ed08c446cfaaae2b234fdfeb0c34ab6b4748c3eLennart Poettering

3ed08c446cfaaae2b234fdfeb0c34ab6b4748c3eLennart Poettering l = new0(Link, 1);

3ed08c446cfaaae2b234fdfeb0c34ab6b4748c3eLennart Poettering if (!l)

3ed08c446cfaaae2b234fdfeb0c34ab6b4748c3eLennart Poettering return -ENOMEM;

3ed08c446cfaaae2b234fdfeb0c34ab6b4748c3eLennart Poettering

3ed08c446cfaaae2b234fdfeb0c34ab6b4748c3eLennart Poettering l->ifindex = ifindex;

3ed08c446cfaaae2b234fdfeb0c34ab6b4748c3eLennart 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;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart 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)

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering return NULL;

bb99a35a873c35e80b0b47fe045081022660374dLennart Poettering

bb99a35a873c35e80b0b47fe045081022660374dLennart Poettering link_flush_dns_servers(l);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

03e334a1c7dc8c20c38902aa039440763acc9b17Lennart Poettering while (l->addresses)

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering link_address_free(l->addresses);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (l->manager)

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

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering dns_scope_free(l->unicast_scope);

a5344d2c3b0f14e954ce1c0ef905c5b44bc5bf0aLennart Poettering dns_scope_free(l->llmnr_ipv4_scope);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering dns_scope_free(l->llmnr_ipv6_scope);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering free(l);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering return NULL;

d0bbc21caa6e68693a47db60c93e99422bf2a858Lennart Poettering}

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poetteringstatic void link_allocate_scopes(Link *l) {

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering int r;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering assert(l);

a5344d2c3b0f14e954ce1c0ef905c5b44bc5bf0aLennart Poettering

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering if (l->dns_servers) {

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering if (!l->unicast_scope) {

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering r = dns_scope_new(l->manager, &l->unicast_scope, l, DNS_PROTOCOL_DNS, AF_UNSPEC);

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering if (r < 0)

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering log_warning_errno(r, "Failed to allocate DNS scope: %m");

d0bbc21caa6e68693a47db60c93e99422bf2a858Lennart Poettering }

1ae464e09376853c52075ec4d8a6bfc4b4036d0cThomas Hindoe Paaboel Andersen } else

1ae464e09376853c52075ec4d8a6bfc4b4036d0cThomas Hindoe Paaboel Andersen l->unicast_scope = dns_scope_free(l->unicast_scope);

1ae464e09376853c52075ec4d8a6bfc4b4036d0cThomas Hindoe Paaboel Andersen

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering if (link_relevant(l, AF_INET) &&

d0bbc21caa6e68693a47db60c93e99422bf2a858Lennart Poettering l->llmnr_support != SUPPORT_NO &&

d0bbc21caa6e68693a47db60c93e99422bf2a858Lennart Poettering l->manager->llmnr_support != SUPPORT_NO) {

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (!l->llmnr_ipv4_scope) {

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering r = dns_scope_new(l->manager, &l->llmnr_ipv4_scope, l, DNS_PROTOCOL_LLMNR, AF_INET);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (r < 0)

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering log_warning_errno(r, "Failed to allocate LLMNR IPv4 scope: %m");

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering }

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering } else

d0bbc21caa6e68693a47db60c93e99422bf2a858Lennart Poettering l->llmnr_ipv4_scope = dns_scope_free(l->llmnr_ipv4_scope);

d0bbc21caa6e68693a47db60c93e99422bf2a858Lennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (link_relevant(l, AF_INET6) &&

d0bbc21caa6e68693a47db60c93e99422bf2a858Lennart Poettering l->llmnr_support != SUPPORT_NO &&

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering l->manager->llmnr_support != SUPPORT_NO &&

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering socket_ipv6_is_supported()) {

44b601bc79e46722bc0f0862ee0ce34a2284ef11Lennart Poettering if (!l->llmnr_ipv6_scope) {

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering r = dns_scope_new(l->manager, &l->llmnr_ipv6_scope, l, DNS_PROTOCOL_LLMNR, AF_INET6);

25d042e81516246b1ebf706a57c47ac19abb0b8aLennart Poettering if (r < 0)

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

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering }

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering } else

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering l->llmnr_ipv6_scope = dns_scope_free(l->llmnr_ipv6_scope);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering}

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poetteringvoid link_add_rrs(Link *l, bool force_remove) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering LinkAddress *a;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

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

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering link_address_add_rrs(a, force_remove);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering}

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

25d042e81516246b1ebf706a57c47ac19abb0b8aLennart 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);

72f1d5a2880d103dc1c1746f5c02e192e054705eLennart 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

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering sd_netlink_message_read_u32(m, IFLA_MTU, &l->mtu);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (sd_netlink_message_read_string(m, IFLA_IFNAME, &n) >= 0) {

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering strncpy(l->name, n, sizeof(l->name)-1);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering char_array_0(l->name);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering }

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

72f1d5a2880d103dc1c1746f5c02e192e054705eLennart Poettering link_allocate_scopes(l);

72f1d5a2880d103dc1c1746f5c02e192e054705eLennart Poettering link_add_rrs(l, false);

72f1d5a2880d103dc1c1746f5c02e192e054705eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering return 0;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering}

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

72f1d5a2880d103dc1c1746f5c02e192e054705eLennart Poetteringstatic int link_update_dns_servers(Link *l) {

72f1d5a2880d103dc1c1746f5c02e192e054705eLennart Poettering _cleanup_strv_free_ char **nameservers = NULL;

72f1d5a2880d103dc1c1746f5c02e192e054705eLennart Poettering char **nameserver;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering int r;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering assert(l);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering r = sd_network_link_get_dns(l->ifindex, &nameservers);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (r < 0)

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering goto clear;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering link_mark_dns_servers(l);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering STRV_FOREACH(nameserver, nameservers) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering union in_addr_union a;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering DnsServer *s;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering int family;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

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

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (r < 0)

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering goto clear;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering s = link_find_dns_server(l, family, &a);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (s)

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering s->marked = false;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering else {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering r = dns_server_new(l->manager, NULL, DNS_SERVER_LINK, l, family, &a);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (r < 0)

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering goto clear;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering }

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering }

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering link_flush_marked_dns_servers(l);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering return 0;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poetteringclear:

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering link_flush_dns_servers(l);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering return r;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering}

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poetteringstatic int link_update_llmnr_support(Link *l) {

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering _cleanup_free_ char *b = NULL;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering int r;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering assert(l);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

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

a5344d2c3b0f14e954ce1c0ef905c5b44bc5bf0aLennart Poettering if (r < 0)

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering goto clear;

c79e98eadd3056a36a662699fa650db5b1bca0c3Lennart Poettering

61c024b328d5493a334242a4d01ba923582093faZbigniew Jędrzejewski-Szmek r = parse_boolean(b);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (r < 0) {

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (streq(b, "resolve"))

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering l->llmnr_support = SUPPORT_RESOLVE;

6e5abe1564070a760196b97031eca9cf5e95e8a2Zbigniew Jędrzejewski-Szmek else

6e5abe1564070a760196b97031eca9cf5e95e8a2Zbigniew Jędrzejewski-Szmek goto clear;

6e5abe1564070a760196b97031eca9cf5e95e8a2Zbigniew Jędrzejewski-Szmek

6e5abe1564070a760196b97031eca9cf5e95e8a2Zbigniew Jędrzejewski-Szmek } else if (r > 0)

6e5abe1564070a760196b97031eca9cf5e95e8a2Zbigniew Jędrzejewski-Szmek l->llmnr_support = SUPPORT_YES;

6e5abe1564070a760196b97031eca9cf5e95e8a2Zbigniew Jędrzejewski-Szmek else

6e5abe1564070a760196b97031eca9cf5e95e8a2Zbigniew Jędrzejewski-Szmek l->llmnr_support = SUPPORT_NO;

6e5abe1564070a760196b97031eca9cf5e95e8a2Zbigniew Jędrzejewski-Szmek

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering return 0;

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poetteringclear:

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering l->llmnr_support = SUPPORT_YES;

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering return r;

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering}

ee55db41442ad8055f5a84a339b1e0e22bc037c4Lennart Poettering

c79e98eadd3056a36a662699fa650db5b1bca0c3Lennart Poetteringstatic int link_update_domains(Link *l) {

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering int r;

1ae464e09376853c52075ec4d8a6bfc4b4036d0cThomas Hindoe Paaboel Andersen

1ae464e09376853c52075ec4d8a6bfc4b4036d0cThomas Hindoe Paaboel Andersen if (!l->unicast_scope)

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering return 0;

ee55db41442ad8055f5a84a339b1e0e22bc037c4Lennart 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)

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering return r;

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering

a5344d2c3b0f14e954ce1c0ef905c5b44bc5bf0aLennart Poettering return 0;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering}

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poetteringint link_update_monitor(Link *l) {

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering assert(l);

29abad107f8610e73b2fc091216040b579c75453Zbigniew Jędrzejewski-Szmek

29abad107f8610e73b2fc091216040b579c75453Zbigniew Jędrzejewski-Szmek link_update_dns_servers(l);

2a0e0692565f0435657c93498e09cbb2d3517152Shawn Landden link_update_llmnr_support(l);

ee55db41442ad8055f5a84a339b1e0e22bc037c4Lennart Poettering link_allocate_scopes(l);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering link_update_domains(l);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering link_add_rrs(l, false);

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering return 0;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering}

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poetteringbool link_relevant(Link *l, int family) {

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering _cleanup_free_ char *state = NULL;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering LinkAddress *a;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering assert(l);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart 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))

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering return false;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering sd_network_link_get_operational_state(l->ifindex, &state);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (state && !STR_IN_SET(state, "unknown", "degraded", "routable"))

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering return false;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

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

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering if (a->family == family && link_address_relevant(a))

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering return true;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering return false;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering}

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

ee55db41442ad8055f5a84a339b1e0e22bc037c4Lennart PoetteringLinkAddress *link_find_address(Link *l, int family, const union in_addr_union *in_addr) {

ee55db41442ad8055f5a84a339b1e0e22bc037c4Lennart Poettering LinkAddress *a;

ee55db41442ad8055f5a84a339b1e0e22bc037c4Lennart Poettering

ee55db41442ad8055f5a84a339b1e0e22bc037c4Lennart Poettering assert(l);

ee55db41442ad8055f5a84a339b1e0e22bc037c4Lennart Poettering

ee55db41442ad8055f5a84a339b1e0e22bc037c4Lennart Poettering LIST_FOREACH(addresses, a, l->addresses)

ee55db41442ad8055f5a84a339b1e0e22bc037c4Lennart Poettering if (a->family == family && in_addr_equal(family, &a->in_addr, in_addr))

ee55db41442ad8055f5a84a339b1e0e22bc037c4Lennart Poettering return a;

ee55db41442ad8055f5a84a339b1e0e22bc037c4Lennart Poettering

ee55db41442ad8055f5a84a339b1e0e22bc037c4Lennart Poettering return NULL;

ee55db41442ad8055f5a84a339b1e0e22bc037c4Lennart Poettering}

ee55db41442ad8055f5a84a339b1e0e22bc037c4Lennart Poettering

ee55db41442ad8055f5a84a339b1e0e22bc037c4Lennart Poetteringvoid link_flush_dns_servers(Link *l) {

ee55db41442ad8055f5a84a339b1e0e22bc037c4Lennart Poettering assert(l);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering while (l->dns_servers)

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering dns_server_unlink(l->dns_servers);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering}

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poetteringvoid link_flush_marked_dns_servers(Link *l) {

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering DnsServer *s, *next;

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering assert(l);

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering LIST_FOREACH_SAFE(servers, s, next, l->dns_servers) {

6c045c0b4c49c88a1d3b9360c05efa5084796d2dZbigniew Jędrzejewski-Szmek if (!s->marked)

6c045c0b4c49c88a1d3b9360c05efa5084796d2dZbigniew Jędrzejewski-Szmek continue;

6c045c0b4c49c88a1d3b9360c05efa5084796d2dZbigniew Jędrzejewski-Szmek

6c045c0b4c49c88a1d3b9360c05efa5084796d2dZbigniew Jędrzejewski-Szmek dns_server_unlink(s);

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering }

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering}

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering

c79e98eadd3056a36a662699fa650db5b1bca0c3Lennart Poetteringvoid link_mark_dns_servers(Link *l) {

c79e98eadd3056a36a662699fa650db5b1bca0c3Lennart Poettering DnsServer *s;

c79e98eadd3056a36a662699fa650db5b1bca0c3Lennart Poettering

8e33886ec582336564ae11b80023abe93d7599c0Zbigniew Jędrzejewski-Szmek assert(l);

c79e98eadd3056a36a662699fa650db5b1bca0c3Lennart Poettering

c79e98eadd3056a36a662699fa650db5b1bca0c3Lennart Poettering LIST_FOREACH(servers, s, l->dns_servers)

c79e98eadd3056a36a662699fa650db5b1bca0c3Lennart Poettering s->marked = true;

c79e98eadd3056a36a662699fa650db5b1bca0c3Lennart Poettering}

73843b52585d42cc1a970a1c664818ece6942e9eLennart Poettering

c79e98eadd3056a36a662699fa650db5b1bca0c3Lennart PoetteringDnsServer* link_find_dns_server(Link *l, int family, const union in_addr_union *in_addr) {

73843b52585d42cc1a970a1c664818ece6942e9eLennart Poettering DnsServer *s;

c79e98eadd3056a36a662699fa650db5b1bca0c3Lennart Poettering

c79e98eadd3056a36a662699fa650db5b1bca0c3Lennart Poettering assert(l);

c79e98eadd3056a36a662699fa650db5b1bca0c3Lennart Poettering assert(in_addr);

c79e98eadd3056a36a662699fa650db5b1bca0c3Lennart Poettering

c79e98eadd3056a36a662699fa650db5b1bca0c3Lennart Poettering LIST_FOREACH(servers, s, l->dns_servers)

c79e98eadd3056a36a662699fa650db5b1bca0c3Lennart Poettering if (s->family == family && in_addr_equal(family, &s->address, in_addr))

73843b52585d42cc1a970a1c664818ece6942e9eLennart Poettering return s;

c79e98eadd3056a36a662699fa650db5b1bca0c3Lennart Poettering return NULL;

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering}

87b0284327e34a4b96c22085fa2cdb3219294991Zbigniew Jędrzejewski-Szmek

61c024b328d5493a334242a4d01ba923582093faZbigniew Jędrzejewski-SzmekDnsServer* link_set_dns_server(Link *l, DnsServer *s) {

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering assert(l);

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering

c79e98eadd3056a36a662699fa650db5b1bca0c3Lennart Poettering if (l->current_dns_server == s)

73843b52585d42cc1a970a1c664818ece6942e9eLennart Poettering return s;

c79e98eadd3056a36a662699fa650db5b1bca0c3Lennart Poettering

73843b52585d42cc1a970a1c664818ece6942e9eLennart Poettering if (s) {

c79e98eadd3056a36a662699fa650db5b1bca0c3Lennart Poettering _cleanup_free_ char *ip = NULL;

c79e98eadd3056a36a662699fa650db5b1bca0c3Lennart 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 dns_server_unref(l->current_dns_server);

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering l->current_dns_server = dns_server_ref(s);

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering if (l->unicast_scope)

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering dns_cache_flush(&l->unicast_scope->cache);

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering return s;

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering}

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering

0dad12c190b7493955cd60d2a1625199b1709f69Lennart PoetteringDnsServer *link_get_dns_server(Link *l) {

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering assert(l);

0dad12c190b7493955cd60d2a1625199b1709f69Lennart Poettering

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering if (!l->current_dns_server)

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering link_set_dns_server(l, l->dns_servers);

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering return l->current_dns_server;

7f3e62571a63ac90de6ac5eefeeb8d3e9aa6f49eLennart Poettering}

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poetteringvoid link_next_dns_server(Link *l) {

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering assert(l);

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering if (!l->current_dns_server)

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering return;

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering /* Change to the next one, but make sure to follow the linked

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering if (l->current_dns_server->linked && l->current_dns_server->servers_next) {

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering link_set_dns_server(l, l->current_dns_server->servers_next);

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering return;

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering }

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering link_set_dns_server(l, l->dns_servers);

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering}

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poetteringint link_address_new(Link *l, LinkAddress **ret, int family, const union in_addr_union *in_addr) {

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering LinkAddress *a;

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering assert(l);

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering assert(in_addr);

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering a = new0(LinkAddress, 1);

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering if (!a)

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering return -ENOMEM;

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering a->family = family;

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering a->in_addr = *in_addr;

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering a->link = l;

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering LIST_PREPEND(addresses, l->addresses, a);

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering if (ret)

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering *ret = a;

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering return 0;

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering}

5c0aa72a4999bdcf03fe93ed5c8213c2b4c681f0Lennart Poettering

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart PoetteringLinkAddress *link_address_free(LinkAddress *a) {

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering if (!a)

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering return NULL;

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering if (a->link) {

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering LIST_REMOVE(addresses, a->link->addresses, a);

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering if (a->llmnr_address_rr) {

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering if (a->family == AF_INET && a->link->llmnr_ipv4_scope)

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_address_rr);

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering else if (a->family == AF_INET6 && a->link->llmnr_ipv6_scope)

4cd9a9d9ecf3a8835e21930f3215a5f5b74144beLennart Poettering dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_address_rr);

6e5abe1564070a760196b97031eca9cf5e95e8a2Zbigniew Jędrzejewski-Szmek }

6e5abe1564070a760196b97031eca9cf5e95e8a2Zbigniew Jędrzejewski-Szmek

6e5abe1564070a760196b97031eca9cf5e95e8a2Zbigniew Jędrzejewski-Szmek if (a->llmnr_ptr_rr) {

6e5abe1564070a760196b97031eca9cf5e95e8a2Zbigniew Jędrzejewski-Szmek if (a->family == AF_INET && a->link->llmnr_ipv4_scope)

61c024b328d5493a334242a4d01ba923582093faZbigniew Jędrzejewski-Szmek 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);

61c024b328d5493a334242a4d01ba923582093faZbigniew Jędrzejewski-Szmek }

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering }

1ae464e09376853c52075ec4d8a6bfc4b4036d0cThomas Hindoe Paaboel Andersen

1ae464e09376853c52075ec4d8a6bfc4b4036d0cThomas Hindoe Paaboel Andersen dns_resource_record_unref(a->llmnr_address_rr);

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering dns_resource_record_unref(a->llmnr_ptr_rr);

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering free(a);

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering return NULL;

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering}

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering

61c024b328d5493a334242a4d01ba923582093faZbigniew Jędrzejewski-Szmekvoid link_address_add_rrs(LinkAddress *a, bool force_remove) {

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering int r;

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering

61c024b328d5493a334242a4d01ba923582093faZbigniew Jędrzejewski-Szmek assert(a);

86b9b8e70d54e79db3ff4f67bbd5280ecfc82537Lennart Poettering

86b9b8e70d54e79db3ff4f67bbd5280ecfc82537Lennart Poettering if (a->family == AF_INET) {

bb99a35a873c35e80b0b47fe045081022660374dLennart Poettering

bb99a35a873c35e80b0b47fe045081022660374dLennart Poettering if (!force_remove &&

4cd9a9d9ecf3a8835e21930f3215a5f5b74144beLennart Poettering link_address_relevant(a) &&

4cd9a9d9ecf3a8835e21930f3215a5f5b74144beLennart Poettering a->link->llmnr_ipv4_scope &&

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering a->link->llmnr_support == SUPPORT_YES &&

4cd9a9d9ecf3a8835e21930f3215a5f5b74144beLennart Poettering a->link->manager->llmnr_support == SUPPORT_YES) {

8b38f3cc3eb73adf9536cb73d0f319e60d42ea0cLennart Poettering

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering if (!a->link->manager->llmnr_host_ipv4_key) {

4cd9a9d9ecf3a8835e21930f3215a5f5b74144beLennart Poettering a->link->manager->llmnr_host_ipv4_key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_A, a->link->manager->llmnr_hostname);

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering if (!a->link->manager->llmnr_host_ipv4_key) {

a6e87e90ede66815989ba2db92a07102a69906feLennart Poettering r = -ENOMEM;

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering goto fail;

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering }

4cd9a9d9ecf3a8835e21930f3215a5f5b74144beLennart Poettering }

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering if (!a->llmnr_address_rr) {

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering a->llmnr_address_rr = dns_resource_record_new(a->link->manager->llmnr_host_ipv4_key);

224f2ee221e77c326d1d7761abb6e812432b2163Lennart Poettering if (!a->llmnr_address_rr) {

224f2ee221e77c326d1d7761abb6e812432b2163Lennart Poettering r = -ENOMEM;

224f2ee221e77c326d1d7761abb6e812432b2163Lennart Poettering goto fail;

224f2ee221e77c326d1d7761abb6e812432b2163Lennart Poettering }

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering

61c024b328d5493a334242a4d01ba923582093faZbigniew Jędrzejewski-Szmek a->llmnr_address_rr->a.in_addr = a->in_addr.in;

61c024b328d5493a334242a4d01ba923582093faZbigniew Jędrzejewski-Szmek a->llmnr_address_rr->ttl = LLMNR_DEFAULT_TTL;

61c024b328d5493a334242a4d01ba923582093faZbigniew Jędrzejewski-Szmek }

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering

61c024b328d5493a334242a4d01ba923582093faZbigniew Jędrzejewski-Szmek if (!a->llmnr_ptr_rr) {

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering r = dns_resource_record_new_reverse(&a->llmnr_ptr_rr, a->family, &a->in_addr, a->link->manager->llmnr_hostname);

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart Poettering if (r < 0)

61c024b328d5493a334242a4d01ba923582093faZbigniew Jędrzejewski-Szmek goto fail;

61c024b328d5493a334242a4d01ba923582093faZbigniew Jędrzejewski-Szmek

61c024b328d5493a334242a4d01ba923582093faZbigniew Jędrzejewski-Szmek a->llmnr_ptr_rr->ttl = LLMNR_DEFAULT_TTL;

fe6521272ba203ec8f0d5a94f0729960b3f90525Lennart 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)

1ae464e09376853c52075ec4d8a6bfc4b4036d0cThomas Hindoe Paaboel Andersen dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_ptr_rr);

1ae464e09376853c52075ec4d8a6bfc4b4036d0cThomas Hindoe Paaboel Andersen a->llmnr_ptr_rr = dns_resource_record_unref(a->llmnr_ptr_rr);

1ae464e09376853c52075ec4d8a6bfc4b4036d0cThomas Hindoe Paaboel Andersen }

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

3ed08c446cfaaae2b234fdfeb0c34ab6b4748c3eLennart 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

3ed08c446cfaaae2b234fdfeb0c34ab6b4748c3eLennart 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)

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering dns_zone_remove_rr(&a->link->llmnr_ipv6_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_ipv6_scope)

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_ptr_rr);

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering a->llmnr_ptr_rr = dns_resource_record_unref(a->llmnr_ptr_rr);

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering }

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering }

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering }

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering return;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poetteringfail:

1ae464e09376853c52075ec4d8a6bfc4b4036d0cThomas Hindoe Paaboel Andersen log_debug_errno(r, "Failed to update address RRs: %m");

1ae464e09376853c52075ec4d8a6bfc4b4036d0cThomas Hindoe Paaboel Andersen}

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poetteringint link_address_update_rtnl(LinkAddress *a, sd_netlink_message *m) {

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering int r;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering assert(a);

3ed08c446cfaaae2b234fdfeb0c34ab6b4748c3eLennart Poettering assert(m);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering r = sd_rtnl_message_addr_get_flags(m, &a->flags);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering if (r < 0)

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering return r;

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering sd_rtnl_message_addr_get_scope(m, &a->scope);

b070e7f3c9ed680c821bd89d42506695f2438506Lennart Poettering

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering link_allocate_scopes(a->link);

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering link_add_rrs(a->link, false);

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering return 0;

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering}

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poetteringbool link_address_relevant(LinkAddress *a) {

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering assert(a);

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering

3ed08c446cfaaae2b234fdfeb0c34ab6b4748c3eLennart Poettering if (a->flags & (IFA_F_DEPRECATED|IFA_F_TENTATIVE))

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering return false;

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering if (IN_SET(a->scope, RT_SCOPE_HOST, RT_SCOPE_NOWHERE))

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering return false;

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering return true;

18c7ed186be28800a2eeb37ad31c9c44480d3d9cLennart Poettering}