74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

b5efdb8af40ea759a1ea584c1bc44ecc81dd00ceLennart Poettering#include <net/if.h>

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering#include "sd-network.h"

b5efdb8af40ea759a1ea584c1bc44ecc81dd00ceLennart Poettering#include "strv.h"

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering#include "resolved-link.h"

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersenint link_new(Manager *m, Link **ret, int ifindex) {

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen _cleanup_(link_freep) Link *l = NULL;

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen int r;

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering assert(m);

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering assert(ifindex > 0);

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering r = hashmap_ensure_allocated(&m->links, NULL, NULL);

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (r < 0)

0dd25fb9f005d8ab7ac4bc10a609d00569f8c56aLennart Poettering return r;

3c0cf502796be355431d4a64d738e75f543aa51dLennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering l = new0(Link, 1);

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering if (!l)

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering return -ENOMEM;

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering l->ifindex = ifindex;

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering r = hashmap_put(m->links, INT_TO_PTR(ifindex), l);

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering if (r < 0)

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering return r;

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering l->manager = m;

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering if (ret)

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering *ret = l;

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering l = NULL;

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering return 0;

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering}

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart PoetteringLink *link_free(Link *l) {

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (!l)

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen return NULL;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering while (l->addresses)

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering link_address_free(l->addresses);

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen if (l->manager)

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering hashmap_remove(l->manager->links, INT_TO_PTR(l->ifindex));

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering dns_scope_free(l->unicast_scope);

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering dns_scope_free(l->llmnr_ipv4_scope);

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering dns_scope_free(l->llmnr_ipv6_scope);

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering while (l->dns_servers)

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering dns_server_free(l->dns_servers);

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering free(l);

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering return NULL;

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering}

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poetteringstatic void link_allocate_scopes(Link *l) {

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering int r;

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering assert(l);

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering if (l->dns_servers) {

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering if (!l->unicast_scope) {

4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering r = dns_scope_new(l->manager, &l->unicast_scope, l, DNS_PROTOCOL_DNS, AF_UNSPEC);

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering if (r < 0)

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering log_warning("Failed to allocate DNS scope: %s", strerror(-r));

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering }

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering } else

4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering l->unicast_scope = dns_scope_free(l->unicast_scope);

4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering

4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering if (link_relevant(l, AF_INET) && l->manager->use_llmnr) {

4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering if (!l->llmnr_ipv4_scope) {

3e684349c2cead2e6fd2f816c34eb17daba23a49Lennart Poettering r = dns_scope_new(l->manager, &l->llmnr_ipv4_scope, l, DNS_PROTOCOL_LLMNR, AF_INET);

3e684349c2cead2e6fd2f816c34eb17daba23a49Lennart Poettering if (r < 0)

3e684349c2cead2e6fd2f816c34eb17daba23a49Lennart Poettering log_warning("Failed to allocate LLMNR IPv4 scope: %s", strerror(-r));

4e945a6f7971fd7d1f6b2c62ee3afdaff3c95ce4Lennart Poettering }

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering } else

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering l->llmnr_ipv4_scope = dns_scope_free(l->llmnr_ipv4_scope);

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (link_relevant(l, AF_INET6) && l->manager->use_llmnr) {

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (!l->llmnr_ipv6_scope) {

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering r = dns_scope_new(l->manager, &l->llmnr_ipv6_scope, l, DNS_PROTOCOL_LLMNR, AF_INET6);

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen if (r < 0)

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering log_warning("Failed to allocate LLMNR IPv6 scope: %s", strerror(-r));

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering }

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering } else

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen l->llmnr_ipv6_scope = dns_scope_free(l->llmnr_ipv6_scope);

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen}

cab5b05903096e1c9cf5575ccc73f89d15c8db69Lennart Poettering

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersenint link_update_rtnl(Link *l, sd_rtnl_message *m) {

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen const char *n = NULL;

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen int r;

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen assert(l);

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen assert(m);

3e684349c2cead2e6fd2f816c34eb17daba23a49Lennart Poettering

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering r = sd_rtnl_message_link_get_flags(m, &l->flags);

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering if (r < 0)

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen return r;

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering sd_rtnl_message_read_u32(m, IFLA_MTU, &l->mtu);

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (sd_rtnl_message_read_string(m, IFLA_IFNAME, &n) >= 0) {

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering strncpy(l->name, n, sizeof(l->name));

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering char_array_0(l->name);

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering }

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering link_allocate_scopes(l);

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering return 0;

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen}

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poetteringstatic int link_update_dns_servers(Link *l) {

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering _cleanup_free_ struct in_addr *nameservers = NULL;

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen _cleanup_free_ struct in6_addr *nameservers6 = NULL;

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering DnsServer *s, *nx;

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering int r, n, i;

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering assert(l);

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering LIST_FOREACH(servers, s, l->dns_servers)

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering s->marked = true;

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering n = sd_network_get_dns(l->ifindex, &nameservers);

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering if (n < 0) {

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering r = n;

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering goto clear;

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering }

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering for (i = 0; i < n; i++) {

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering union in_addr_union a = { .in = nameservers[i] };

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering s = link_find_dns_server(l, AF_INET, &a);

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering if (s)

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering s->marked = false;

eed857b71702f8551b46b66b31fa0d08583cf23cLennart Poettering else {

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering r = dns_server_new(l->manager, NULL, l, AF_INET, &a);

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering if (r < 0)

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering goto clear;

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering }

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering }

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering n = sd_network_get_dns6(l->ifindex, &nameservers6);

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering if (n < 0) {

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering r = n;

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering goto clear;

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering }

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen for (i = 0; i < n; i++) {

91b14d6ff362b938a72db17b095ee9903d07381bTom Gundersen union in_addr_union a = { .in6 = nameservers6[i] };

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering s = link_find_dns_server(l, AF_INET6, &a);

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering if (s)

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering s->marked = false;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering else {

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering r = dns_server_new(l->manager, NULL, l, AF_INET6, &a);

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering if (r < 0)

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering goto clear;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering }

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering }

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering LIST_FOREACH_SAFE(servers, s, nx, l->dns_servers)

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering if (s->marked)

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering dns_server_free(s);

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering return 0;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poetteringclear:

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering while (l->dns_servers)

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering dns_server_free(l->dns_servers);

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering return r;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering}

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poetteringint link_update_monitor(Link *l) {

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering assert(l);

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering link_update_dns_servers(l);

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering link_allocate_scopes(l);

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering return 0;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering}

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poetteringbool link_relevant(Link *l, int family) {

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering _cleanup_free_ char *state = NULL;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering LinkAddress *a;

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering assert(l);

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering /* A link is relevant if it isn't a loopback device and has at

0b58db658b5c3f586ac3a837427f1f7fec2abb2eLennart Poettering

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen if (l->flags & IFF_LOOPBACK)

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen return false;

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen

84129d46cd6e95e142973da93aede4c7433c9600Lennart Poettering sd_network_get_link_operational_state(l->ifindex, &state);

84129d46cd6e95e142973da93aede4c7433c9600Lennart Poettering if (state && !STR_IN_SET(state, "unknown", "degraded", "routable"))

84129d46cd6e95e142973da93aede4c7433c9600Lennart Poettering return false;

84129d46cd6e95e142973da93aede4c7433c9600Lennart Poettering

84129d46cd6e95e142973da93aede4c7433c9600Lennart Poettering LIST_FOREACH(addresses, a, l->addresses)

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen if (a->family == family && link_address_relevant(a))

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen return true;

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen return false;

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen}

84129d46cd6e95e142973da93aede4c7433c9600Lennart Poettering

84129d46cd6e95e142973da93aede4c7433c9600Lennart PoetteringLinkAddress *link_find_address(Link *l, int family, union in_addr_union *in_addr) {

84129d46cd6e95e142973da93aede4c7433c9600Lennart Poettering LinkAddress *a;

84129d46cd6e95e142973da93aede4c7433c9600Lennart Poettering

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen assert(l);

9df3ba6c6cb65eecec06f39dfe85a3596cedac4eTom Gundersen

b826ab586c9e0a9c0d438a75c28cf3a8ab485929Tom Gundersen LIST_FOREACH(addresses, a, l->addresses)

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering if (a->family == family && in_addr_equal(family, &a->in_addr, in_addr))

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering return a;

b826ab586c9e0a9c0d438a75c28cf3a8ab485929Tom Gundersen

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering return NULL;

b826ab586c9e0a9c0d438a75c28cf3a8ab485929Tom Gundersen}

b826ab586c9e0a9c0d438a75c28cf3a8ab485929Tom Gundersen

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart PoetteringDnsServer* link_find_dns_server(Link *l, int family, union in_addr_union *in_addr) {

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering DnsServer *s;

d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering assert(l);

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering LIST_FOREACH(servers, s, l->dns_servers)

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering if (s->family == family && in_addr_equal(family, &s->address, in_addr))

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering return s;

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering return NULL;

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering}

87f5a19343acf8ba697acc5a62bdb1a2b8c9eda3Lennart Poettering

d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal SchmidtDnsServer *link_get_dns_server(Link *l) {

d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt assert(l);

d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt

d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt if (!l->current_dns_server)

d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt l->current_dns_server = l->dns_servers;

636e813dc98ea40c58c6c85bc5e7e3c9f0904ea2Lennart Poettering

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering return l->current_dns_server;

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering}

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poetteringvoid link_next_dns_server(Link *l) {

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering assert(l);

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering /* Switch to the next DNS server */

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering

636e813dc98ea40c58c6c85bc5e7e3c9f0904ea2Lennart Poettering if (!l->current_dns_server) {

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering l->current_dns_server = l->dns_servers;

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering if (l->current_dns_server)

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering return;

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering }

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering

636e813dc98ea40c58c6c85bc5e7e3c9f0904ea2Lennart Poettering if (!l->current_dns_server)

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering return;

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering

636e813dc98ea40c58c6c85bc5e7e3c9f0904ea2Lennart Poettering if (l->current_dns_server->servers_next) {

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering l->current_dns_server = l->current_dns_server->servers_next;

636e813dc98ea40c58c6c85bc5e7e3c9f0904ea2Lennart Poettering return;

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering }

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering

636e813dc98ea40c58c6c85bc5e7e3c9f0904ea2Lennart Poettering l->current_dns_server = l->dns_servers;

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering}

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering

636e813dc98ea40c58c6c85bc5e7e3c9f0904ea2Lennart Poetteringint link_address_new(Link *l, LinkAddress **ret, int family, union in_addr_union *in_addr) {

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering LinkAddress *a;

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering assert(l);

636e813dc98ea40c58c6c85bc5e7e3c9f0904ea2Lennart Poettering assert(in_addr);

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering a = new0(LinkAddress, 1);

636e813dc98ea40c58c6c85bc5e7e3c9f0904ea2Lennart Poettering if (!a)

636e813dc98ea40c58c6c85bc5e7e3c9f0904ea2Lennart Poettering return -ENOMEM;

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering a->family = family;

636e813dc98ea40c58c6c85bc5e7e3c9f0904ea2Lennart Poettering a->in_addr = *in_addr;

636e813dc98ea40c58c6c85bc5e7e3c9f0904ea2Lennart Poettering

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering a->link = l;

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering LIST_PREPEND(addresses, l->addresses, a);

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering if (ret)

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering *ret = a;

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering return 0;

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering}

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart PoetteringLinkAddress *link_address_free(LinkAddress *a) {

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering if (!a)

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering return NULL;

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering if (a->link)

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering LIST_REMOVE(addresses, a->link->addresses, a);

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering free(a);

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering return NULL;

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering}

4b95f1798f22c1bb75295f448188560cb6ec9eceLennart Poettering

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poetteringint link_address_update_rtnl(LinkAddress *a, sd_rtnl_message *m) {

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering int r;

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering assert(a);

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering assert(m);

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering r = sd_rtnl_message_addr_get_flags(m, &a->flags);

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering if (r < 0)

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering return r;

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering sd_rtnl_message_addr_get_scope(m, &a->scope);

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering link_allocate_scopes(a->link);

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering return 0;

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering}

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poetteringbool link_address_relevant(LinkAddress *a) {

0eac462399c8e87bcce252cf058eba9f2678f2bdLennart Poettering assert(a);

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering if (a->flags & IFA_F_DEPRECATED)

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering return false;

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering if (IN_SET(a->scope, RT_SCOPE_HOST, RT_SCOPE_NOWHERE))

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering return false;

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering return true;

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering}

f2f1dbe50fea13abadc9c1e845a29031b90b40f3Lennart Poettering