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Diffstat (limited to 'src/resolve/resolved-manager.h')
| -rw-r--r-- | src/resolve/resolved-manager.h | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/src/resolve/resolved-manager.h b/src/resolve/resolved-manager.h new file mode 100644 index 0000000000..03386f0a4f --- /dev/null +++ b/src/resolve/resolved-manager.h @@ -0,0 +1,146 @@ +/*-*- 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 "util.h" +#include "list.h" +#include "in-addr-util.h" +#include "hashmap.h" + +typedef struct Manager Manager; + +#include "resolved-dns-query.h" +#include "resolved-dns-server.h" +#include "resolved-dns-scope.h" +#include "resolved-dns-stream.h" +#include "resolved-link.h" + +typedef enum Support { + SUPPORT_NO, + SUPPORT_YES, + SUPPORT_RESOLVE, + _SUPPORT_MAX, + _SUPPORT_INVALID = -1 +} Support; + +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; + + 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; +}; + +/* Manager */ + +int manager_new(Manager **ret); +Manager* manager_free(Manager *m); + +int manager_write_resolv_conf(Manager *m); + +bool manager_known_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_ifindex_is_loopback(Manager *m, int ifindex); +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); + +int manager_our_packet(Manager *m, DnsPacket *p); + +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_; |