1 files changed, 119 insertions, 0 deletions
diff --git a/src/resolve/resolved-link.h b/src/resolve/resolved-link.h
new file mode 100644
index 0000000..b5299e0
--- /dev/null
+++ b/src/resolve/resolved-link.h
@@ -0,0 +1,119 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include <sys/stat.h>
+
+#include "sd-netlink.h"
+
+#include "in-addr-util.h"
+#include "network-util.h"
+#include "ratelimit.h"
+#include "resolve-util.h"
+
+typedef struct Link Link;
+typedef struct LinkAddress LinkAddress;
+
+#include "resolved-dns-rr.h"
+#include "resolved-dns-scope.h"
+#include "resolved-dns-search-domain.h"
+#include "resolved-dns-server.h"
+
+#define LINK_SEARCH_DOMAINS_MAX 256
+#define LINK_DNS_SERVERS_MAX 256
+
+struct LinkAddress {
+        Link *link;
+
+        int family;
+        union in_addr_union in_addr;
+        unsigned char prefixlen;
+
+        unsigned char flags, scope;
+
+        DnsResourceRecord *llmnr_address_rr;
+        DnsResourceRecord *llmnr_ptr_rr;
+        DnsResourceRecord *mdns_address_rr;
+        DnsResourceRecord *mdns_ptr_rr;
+
+        LIST_FIELDS(LinkAddress, addresses);
+};
+
+struct Link {
+        Manager *manager;
+
+        int ifindex;
+        unsigned flags;
+
+        LIST_HEAD(LinkAddress, addresses);
+        unsigned n_addresses;
+
+        LIST_HEAD(DnsServer, dns_servers);
+        DnsServer *current_dns_server;
+        unsigned n_dns_servers;
+
+        LIST_HEAD(DnsSearchDomain, search_domains);
+        unsigned n_search_domains;
+
+        int default_route;
+
+        ResolveSupport llmnr_support;
+        ResolveSupport mdns_support;
+        DnsOverTlsMode dns_over_tls_mode;
+        DnssecMode dnssec_mode;
+        Set *dnssec_negative_trust_anchors;
+
+        DnsScope *unicast_scope;
+        DnsScope *llmnr_ipv4_scope;
+        DnsScope *llmnr_ipv6_scope;
+        DnsScope *mdns_ipv4_scope;
+        DnsScope *mdns_ipv6_scope;
+
+        struct stat networkd_state_file_stat;
+        LinkOperationalState networkd_operstate;
+        bool is_managed;
+
+        char *ifname;
+        uint32_t mtu;
+        uint8_t operstate;
+
+        bool loaded;
+        char *state_file;
+
+        bool unicast_relevant;
+};
+
+int link_new(Manager *m, Link **ret, int ifindex);
+Link *link_free(Link *l);
+int link_process_rtnl(Link *l, sd_netlink_message *m);
+int link_update(Link *l);
+bool link_relevant(Link *l, int family, bool local_multicast);
+LinkAddress* link_find_address(Link *l, int family, const union in_addr_union *in_addr);
+void link_add_rrs(Link *l, bool force_remove);
+
+void link_flush_settings(Link *l);
+void link_set_dnssec_mode(Link *l, DnssecMode mode);
+void link_set_dns_over_tls_mode(Link *l, DnsOverTlsMode mode);
+void link_allocate_scopes(Link *l);
+
+DnsServer* link_set_dns_server(Link *l, DnsServer *s);
+DnsServer* link_get_dns_server(Link *l);
+void link_next_dns_server(Link *l, DnsServer *if_current);
+
+DnssecMode link_get_dnssec_mode(Link *l);
+bool link_dnssec_supported(Link *l);
+
+DnsOverTlsMode link_get_dns_over_tls_mode(Link *l);
+
+int link_save_user(Link *l);
+int link_load_user(Link *l);
+void link_remove_user(Link *l);
+
+int link_address_new(Link *l, LinkAddress **ret, int family, const union in_addr_union *in_addr);
+LinkAddress *link_address_free(LinkAddress *a);
+int link_address_update_rtnl(LinkAddress *a, sd_netlink_message *m);
+bool link_address_relevant(LinkAddress *l, bool local_multicast);
+void link_address_add_rrs(LinkAddress *a, bool force_remove);
+
+bool link_negative_trust_anchor_lookup(Link *l, const char *name);
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_free);