void link_allocate_scopes(Link *l) { int r; assert(l); if (link_relevant(l, AF_UNSPEC, false) && l->dns_servers) { if (!l->unicast_scope) { r = dns_scope_new(l->manager, &l->unicast_scope, l, DNS_PROTOCOL_DNS, AF_UNSPEC); if (r < 0) log_warning_errno(r, "Failed to allocate DNS scope: %m"); } } else l->unicast_scope = dns_scope_free(l->unicast_scope); if (link_relevant(l, AF_INET, true) && l->llmnr_support != RESOLVE_SUPPORT_NO && l->manager->llmnr_support != RESOLVE_SUPPORT_NO) { if (!l->llmnr_ipv4_scope) { r = dns_scope_new(l->manager, &l->llmnr_ipv4_scope, l, DNS_PROTOCOL_LLMNR, AF_INET); if (r < 0) log_warning_errno(r, "Failed to allocate LLMNR IPv4 scope: %m"); } } else l->llmnr_ipv4_scope = dns_scope_free(l->llmnr_ipv4_scope); if (link_relevant(l, AF_INET6, true) && l->llmnr_support != RESOLVE_SUPPORT_NO && l->manager->llmnr_support != RESOLVE_SUPPORT_NO && socket_ipv6_is_supported()) { if (!l->llmnr_ipv6_scope) { r = dns_scope_new(l->manager, &l->llmnr_ipv6_scope, l, DNS_PROTOCOL_LLMNR, AF_INET6); if (r < 0) log_warning_errno(r, "Failed to allocate LLMNR IPv6 scope: %m"); } } else l->llmnr_ipv6_scope = dns_scope_free(l->llmnr_ipv6_scope); if (link_relevant(l, AF_INET, true) && l->mdns_support != RESOLVE_SUPPORT_NO && l->manager->mdns_support != RESOLVE_SUPPORT_NO) { if (!l->mdns_ipv4_scope) { r = dns_scope_new(l->manager, &l->mdns_ipv4_scope, l, DNS_PROTOCOL_MDNS, AF_INET); if (r < 0) log_warning_errno(r, "Failed to allocate mDNS IPv4 scope: %m"); } } else l->mdns_ipv4_scope = dns_scope_free(l->mdns_ipv4_scope); if (link_relevant(l, AF_INET6, true) && l->mdns_support != RESOLVE_SUPPORT_NO && l->manager->mdns_support != RESOLVE_SUPPORT_NO) { if (!l->mdns_ipv6_scope) { r = dns_scope_new(l->manager, &l->mdns_ipv6_scope, l, DNS_PROTOCOL_MDNS, AF_INET6); if (r < 0) log_warning_errno(r, "Failed to allocate mDNS IPv6 scope: %m"); } } else l->mdns_ipv6_scope = dns_scope_free(l->mdns_ipv6_scope); }
Link *link_free(Link *l) { if (!l) return NULL; /* Send goodbye messages. */ dns_scope_announce(l->mdns_ipv4_scope, true); dns_scope_announce(l->mdns_ipv6_scope, true); link_flush_settings(l); while (l->addresses) (void) link_address_free(l->addresses); if (l->manager) hashmap_remove(l->manager->links, INT_TO_PTR(l->ifindex)); dns_scope_free(l->unicast_scope); dns_scope_free(l->llmnr_ipv4_scope); dns_scope_free(l->llmnr_ipv6_scope); dns_scope_free(l->mdns_ipv4_scope); dns_scope_free(l->mdns_ipv6_scope); free(l->state_file); return mfree(l); }
Link *link_free(Link *l) { if (!l) return NULL; dns_server_unlink_marked(l->dns_servers); dns_search_domain_unlink_all(l->search_domains); while (l->addresses) link_address_free(l->addresses); if (l->manager) hashmap_remove(l->manager->links, INT_TO_PTR(l->ifindex)); dns_scope_free(l->unicast_scope); dns_scope_free(l->llmnr_ipv4_scope); dns_scope_free(l->llmnr_ipv6_scope); free(l); return NULL; }
Link *link_free(Link *l) { if (!l) return NULL; link_flush_settings(l); while (l->addresses) (void) link_address_free(l->addresses); if (l->manager) hashmap_remove(l->manager->links, INT_TO_PTR(l->ifindex)); dns_scope_free(l->unicast_scope); dns_scope_free(l->llmnr_ipv4_scope); dns_scope_free(l->llmnr_ipv6_scope); dns_scope_free(l->mdns_ipv4_scope); dns_scope_free(l->mdns_ipv6_scope); free(l); return NULL; }
void link_allocate_scopes(Link *l) { bool unicast_relevant; int r; assert(l); /* If a link that used to be relevant is no longer, or a link that did not use to be relevant now becomes * relevant, let's reinit the learnt global DNS server information, since we might talk to different servers * now, even if they have the same addresses as before. */ unicast_relevant = link_relevant(l, AF_UNSPEC, false); if (unicast_relevant != l->unicast_relevant) { l->unicast_relevant = unicast_relevant; dns_server_reset_features_all(l->manager->fallback_dns_servers); dns_server_reset_features_all(l->manager->dns_servers); } /* And now, allocate all scopes that makes sense now if we didn't have them yet, and drop those which we don't * need anymore */ if (unicast_relevant && l->dns_servers) { if (!l->unicast_scope) { dns_server_reset_features_all(l->dns_servers); r = dns_scope_new(l->manager, &l->unicast_scope, l, DNS_PROTOCOL_DNS, AF_UNSPEC); if (r < 0) log_warning_errno(r, "Failed to allocate DNS scope: %m"); } } else l->unicast_scope = dns_scope_free(l->unicast_scope); if (link_relevant(l, AF_INET, true) && l->llmnr_support != RESOLVE_SUPPORT_NO && l->manager->llmnr_support != RESOLVE_SUPPORT_NO) { if (!l->llmnr_ipv4_scope) { r = dns_scope_new(l->manager, &l->llmnr_ipv4_scope, l, DNS_PROTOCOL_LLMNR, AF_INET); if (r < 0) log_warning_errno(r, "Failed to allocate LLMNR IPv4 scope: %m"); } } else l->llmnr_ipv4_scope = dns_scope_free(l->llmnr_ipv4_scope); if (link_relevant(l, AF_INET6, true) && l->llmnr_support != RESOLVE_SUPPORT_NO && l->manager->llmnr_support != RESOLVE_SUPPORT_NO && socket_ipv6_is_supported()) { if (!l->llmnr_ipv6_scope) { r = dns_scope_new(l->manager, &l->llmnr_ipv6_scope, l, DNS_PROTOCOL_LLMNR, AF_INET6); if (r < 0) log_warning_errno(r, "Failed to allocate LLMNR IPv6 scope: %m"); } } else l->llmnr_ipv6_scope = dns_scope_free(l->llmnr_ipv6_scope); if (link_relevant(l, AF_INET, true) && l->mdns_support != RESOLVE_SUPPORT_NO && l->manager->mdns_support != RESOLVE_SUPPORT_NO) { if (!l->mdns_ipv4_scope) { r = dns_scope_new(l->manager, &l->mdns_ipv4_scope, l, DNS_PROTOCOL_MDNS, AF_INET); if (r < 0) log_warning_errno(r, "Failed to allocate mDNS IPv4 scope: %m"); } } else l->mdns_ipv4_scope = dns_scope_free(l->mdns_ipv4_scope); if (link_relevant(l, AF_INET6, true) && l->mdns_support != RESOLVE_SUPPORT_NO && l->manager->mdns_support != RESOLVE_SUPPORT_NO) { if (!l->mdns_ipv6_scope) { r = dns_scope_new(l->manager, &l->mdns_ipv6_scope, l, DNS_PROTOCOL_MDNS, AF_INET6); if (r < 0) log_warning_errno(r, "Failed to allocate mDNS IPv6 scope: %m"); } } else l->mdns_ipv6_scope = dns_scope_free(l->mdns_ipv6_scope); }