diff options
Diffstat (limited to 'src/resolve/resolved-link.c')
| -rw-r--r-- | src/resolve/resolved-link.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/resolve/resolved-link.c b/src/resolve/resolved-link.c index 4e38e88815..4d7447b507 100644 --- a/src/resolve/resolved-link.c +++ b/src/resolve/resolved-link.c @@ -692,10 +692,26 @@ LinkAddress *link_address_free(LinkAddress *a) { 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); } + + if (a->mdns_address_rr) { + if (a->family == AF_INET && a->link->mdns_ipv4_scope) + dns_zone_remove_rr(&a->link->mdns_ipv4_scope->zone, a->mdns_address_rr); + else if (a->family == AF_INET6 && a->link->mdns_ipv6_scope) + dns_zone_remove_rr(&a->link->mdns_ipv6_scope->zone, a->mdns_address_rr); + } + + if (a->mdns_ptr_rr) { + if (a->family == AF_INET && a->link->mdns_ipv4_scope) + dns_zone_remove_rr(&a->link->mdns_ipv4_scope->zone, a->mdns_ptr_rr); + else if (a->family == AF_INET6 && a->link->mdns_ipv6_scope) + dns_zone_remove_rr(&a->link->mdns_ipv6_scope->zone, a->mdns_ptr_rr); + } } dns_resource_record_unref(a->llmnr_address_rr); dns_resource_record_unref(a->llmnr_ptr_rr); + dns_resource_record_unref(a->mdns_address_rr); + dns_resource_record_unref(a->mdns_ptr_rr); return mfree(a); } @@ -760,6 +776,59 @@ void link_address_add_rrs(LinkAddress *a, bool force_remove) { a->llmnr_ptr_rr = dns_resource_record_unref(a->llmnr_ptr_rr); } } + + if (!force_remove && + link_address_relevant(a, true) && + a->link->mdns_ipv4_scope && + a->link->mdns_support == RESOLVE_SUPPORT_YES && + a->link->manager->mdns_support == RESOLVE_SUPPORT_YES) { + if (!a->link->manager->mdns_host_ipv4_key) { + a->link->manager->mdns_host_ipv4_key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_A, a->link->manager->mdns_hostname); + if (!a->link->manager->mdns_host_ipv4_key) { + r = -ENOMEM; + goto fail; + } + } + + if (!a->mdns_address_rr) { + a->mdns_address_rr = dns_resource_record_new(a->link->manager->mdns_host_ipv4_key); + if (!a->mdns_address_rr) { + r = -ENOMEM; + goto fail; + } + + a->mdns_address_rr->a.in_addr = a->in_addr.in; + a->mdns_address_rr->ttl = MDNS_DEFAULT_TTL; + } + + if (!a->mdns_ptr_rr) { + r = dns_resource_record_new_reverse(&a->mdns_ptr_rr, a->family, &a->in_addr, a->link->manager->mdns_hostname); + if (r < 0) + goto fail; + + a->mdns_ptr_rr->ttl = MDNS_DEFAULT_TTL; + } + + r = dns_zone_put(&a->link->mdns_ipv4_scope->zone, a->link->mdns_ipv4_scope, a->mdns_address_rr, true); + if (r < 0) + log_warning_errno(r, "Failed to add A record to MDNS zone: %m"); + + r = dns_zone_put(&a->link->mdns_ipv4_scope->zone, a->link->mdns_ipv4_scope, a->mdns_ptr_rr, false); + if (r < 0) + log_warning_errno(r, "Failed to add IPv4 PTR record to MDNS zone: %m"); + } else { + if (a->mdns_address_rr) { + if (a->link->mdns_ipv4_scope) + dns_zone_remove_rr(&a->link->mdns_ipv4_scope->zone, a->mdns_address_rr); + a->mdns_address_rr = dns_resource_record_unref(a->mdns_address_rr); + } + + if (a->mdns_ptr_rr) { + if (a->link->mdns_ipv4_scope) + dns_zone_remove_rr(&a->link->mdns_ipv4_scope->zone, a->mdns_ptr_rr); + a->mdns_ptr_rr = dns_resource_record_unref(a->mdns_ptr_rr); + } + } } if (a->family == AF_INET6) { @@ -817,6 +886,60 @@ void link_address_add_rrs(LinkAddress *a, bool force_remove) { a->llmnr_ptr_rr = dns_resource_record_unref(a->llmnr_ptr_rr); } } + + if (!force_remove && + link_address_relevant(a, true) && + a->link->mdns_ipv6_scope && + a->link->mdns_support == RESOLVE_SUPPORT_YES && + a->link->manager->mdns_support == RESOLVE_SUPPORT_YES) { + + if (!a->link->manager->mdns_host_ipv6_key) { + a->link->manager->mdns_host_ipv6_key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_AAAA, a->link->manager->mdns_hostname); + if (!a->link->manager->mdns_host_ipv6_key) { + r = -ENOMEM; + goto fail; + } + } + + if (!a->mdns_address_rr) { + a->mdns_address_rr = dns_resource_record_new(a->link->manager->mdns_host_ipv6_key); + if (!a->mdns_address_rr) { + r = -ENOMEM; + goto fail; + } + + a->mdns_address_rr->aaaa.in6_addr = a->in_addr.in6; + a->mdns_address_rr->ttl = MDNS_DEFAULT_TTL; + } + + if (!a->mdns_ptr_rr) { + r = dns_resource_record_new_reverse(&a->mdns_ptr_rr, a->family, &a->in_addr, a->link->manager->mdns_hostname); + if (r < 0) + goto fail; + + a->mdns_ptr_rr->ttl = MDNS_DEFAULT_TTL; + } + + r = dns_zone_put(&a->link->mdns_ipv6_scope->zone, a->link->mdns_ipv6_scope, a->mdns_address_rr, true); + if (r < 0) + log_warning_errno(r, "Failed to add AAAA record to MDNS zone: %m"); + + r = dns_zone_put(&a->link->mdns_ipv6_scope->zone, a->link->mdns_ipv6_scope, a->mdns_ptr_rr, false); + if (r < 0) + log_warning_errno(r, "Failed to add IPv6 PTR record to MDNS zone: %m"); + } else { + if (a->mdns_address_rr) { + if (a->link->mdns_ipv6_scope) + dns_zone_remove_rr(&a->link->mdns_ipv6_scope->zone, a->mdns_address_rr); + a->mdns_address_rr = dns_resource_record_unref(a->mdns_address_rr); + } + + if (a->mdns_ptr_rr) { + if (a->link->mdns_ipv6_scope) + dns_zone_remove_rr(&a->link->mdns_ipv6_scope->zone, a->mdns_ptr_rr); + a->mdns_ptr_rr = dns_resource_record_unref(a->mdns_ptr_rr); + } + } } return; |