/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ #pragma once /*** This file is part of systemd. Copyright 2014 Tom Gundersen <teg@jklm.no> systemd is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with systemd; If not, see <http://www.gnu.org/licenses/>. ***/ #include "sd-event.h" #include "sd-network.h" #include "sd-rtnl.h" #include "list.h" #include "hashmap.h" typedef struct Manager Manager; typedef enum Support Support; enum Support { SUPPORT_NO, SUPPORT_YES, SUPPORT_RESOLVE, _SUPPORT_MAX, _SUPPORT_INVALID = -1 }; #include "resolved-dns-query.h" #include "resolved-dns-stream.h" #include "resolved-link.h" struct Manager { sd_event *event; Support llmnr_support; /* Network */ Hashmap *links; sd_rtnl *rtnl; sd_event_source *rtnl_event_source; sd_network_monitor *network_monitor; sd_event_source *network_event_source; /* DNS query management */ Hashmap *dns_transactions; LIST_HEAD(DnsQuery, dns_queries); unsigned n_dns_queries; LIST_HEAD(DnsStream, dns_streams); unsigned n_dns_streams; /* Unicast dns */ int dns_ipv4_fd; int dns_ipv6_fd; sd_event_source *dns_ipv4_event_source; sd_event_source *dns_ipv6_event_source; LIST_HEAD(DnsServer, dns_servers); LIST_HEAD(DnsServer, fallback_dns_servers); DnsServer *current_dns_server; bool read_resolv_conf; usec_t resolv_conf_mtime; LIST_HEAD(DnsScope, dns_scopes); DnsScope *unicast_scope; /* LLMNR */ int llmnr_ipv4_udp_fd; int llmnr_ipv6_udp_fd; int llmnr_ipv4_tcp_fd; int llmnr_ipv6_tcp_fd; sd_event_source *llmnr_ipv4_udp_event_source; sd_event_source *llmnr_ipv6_udp_event_source; sd_event_source *llmnr_ipv4_tcp_event_source; sd_event_source *llmnr_ipv6_tcp_event_source; /* dbus */ sd_bus *bus; sd_event_source *bus_retry_event_source; /* The hostname we publish on LLMNR and mDNS */ char *hostname; DnsResourceKey *host_ipv4_key; DnsResourceKey *host_ipv6_key; /* Watch the system hostname */ int hostname_fd; sd_event_source *hostname_event_source; /* Watch for system suspends */ sd_bus_slot *prepare_for_sleep_slot; }; /* Manager */ int manager_new(Manager **ret); Manager* manager_free(Manager *m); int manager_start(Manager *m); int manager_read_resolv_conf(Manager *m); int manager_write_resolv_conf(Manager *m); DnsServer *manager_set_dns_server(Manager *m, DnsServer *s); DnsServer *manager_find_dns_server(Manager *m, int family, const union in_addr_union *in_addr); DnsServer *manager_get_dns_server(Manager *m); void manager_next_dns_server(Manager *m); uint32_t manager_find_mtu(Manager *m); int manager_send(Manager *m, int fd, int ifindex, int family, const union in_addr_union *addr, uint16_t port, DnsPacket *p); int manager_recv(Manager *m, int fd, DnsProtocol protocol, DnsPacket **ret); int manager_dns_ipv4_fd(Manager *m); int manager_dns_ipv6_fd(Manager *m); int manager_llmnr_ipv4_udp_fd(Manager *m); int manager_llmnr_ipv6_udp_fd(Manager *m); int manager_llmnr_ipv4_tcp_fd(Manager *m); int manager_llmnr_ipv6_tcp_fd(Manager *m); int manager_find_ifindex(Manager *m, int family, const union in_addr_union *in_addr); LinkAddress* manager_find_link_address(Manager *m, int family, const union in_addr_union *in_addr); void manager_refresh_rrs(Manager *m); int manager_next_hostname(Manager *m); bool manager_our_packet(Manager *m, DnsPacket *p); DnsScope* manager_find_scope(Manager *m, DnsPacket *p); void manager_verify_all(Manager *m); void manager_flush_dns_servers(Manager *m, DnsServerType t); DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free); #define EXTRA_CMSG_SPACE 1024 const char* support_to_string(Support p) _const_; int support_from_string(const char *s) _pure_;