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091a364c TG |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
74b2466e LP |
3 | #pragma once |
4 | ||
091a364c TG |
5 | /*** |
6 | This file is part of systemd. | |
7 | ||
4e945a6f | 8 | Copyright 2014 Tom Gundersen <teg@jklm.no> |
091a364c TG |
9 | |
10 | systemd is free software; you can redistribute it and/or modify it | |
11 | under the terms of the GNU Lesser General Public License as published by | |
12 | the Free Software Foundation; either version 2.1 of the License, or | |
13 | (at your option) any later version. | |
14 | ||
15 | systemd is distributed in the hope that it will be useful, but | |
16 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | Lesser General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU Lesser General Public License | |
21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
22 | ***/ | |
23 | ||
091a364c TG |
24 | #include "sd-event.h" |
25 | #include "sd-network.h" | |
74b2466e | 26 | #include "sd-rtnl.h" |
091a364c TG |
27 | #include "util.h" |
28 | #include "list.h" | |
3b653205 | 29 | #include "in-addr-util.h" |
74b2466e | 30 | #include "hashmap.h" |
091a364c | 31 | |
091a364c TG |
32 | typedef struct Manager Manager; |
33 | ||
74b2466e LP |
34 | #include "resolved-dns-query.h" |
35 | #include "resolved-dns-server.h" | |
36 | #include "resolved-dns-scope.h" | |
623a4c97 | 37 | #include "resolved-dns-stream.h" |
39d8db04 | 38 | #include "resolved-link.h" |
091a364c | 39 | |
4e945a6f LP |
40 | typedef enum Support { |
41 | SUPPORT_NO, | |
42 | SUPPORT_YES, | |
43 | SUPPORT_RESOLVE, | |
44 | _SUPPORT_MAX, | |
45 | _SUPPORT_INVALID = -1 | |
46 | } Support; | |
47 | ||
091a364c TG |
48 | struct Manager { |
49 | sd_event *event; | |
50 | ||
4e945a6f | 51 | Support llmnr_support; |
1716f6dc LP |
52 | |
53 | /* Network */ | |
74b2466e LP |
54 | Hashmap *links; |
55 | ||
56 | sd_rtnl *rtnl; | |
57 | sd_event_source *rtnl_event_source; | |
58 | ||
091a364c | 59 | sd_network_monitor *network_monitor; |
74b2466e LP |
60 | sd_event_source *network_event_source; |
61 | ||
1716f6dc | 62 | /* DNS query management */ |
ec2c5e43 | 63 | Hashmap *dns_transactions; |
1716f6dc LP |
64 | LIST_HEAD(DnsQuery, dns_queries); |
65 | unsigned n_dns_queries; | |
66 | ||
623a4c97 LP |
67 | LIST_HEAD(DnsStream, dns_streams); |
68 | unsigned n_dns_streams; | |
69 | ||
1716f6dc | 70 | /* Unicast dns */ |
74b2466e LP |
71 | int dns_ipv4_fd; |
72 | int dns_ipv6_fd; | |
73 | ||
74 | sd_event_source *dns_ipv4_event_source; | |
75 | sd_event_source *dns_ipv6_event_source; | |
76 | ||
74b2466e | 77 | LIST_HEAD(DnsServer, dns_servers); |
4e945a6f | 78 | LIST_HEAD(DnsServer, fallback_dns_servers); |
74b2466e LP |
79 | DnsServer *current_dns_server; |
80 | ||
5cb36f41 LP |
81 | bool read_resolv_conf; |
82 | usec_t resolv_conf_mtime; | |
83 | ||
74b2466e LP |
84 | LIST_HEAD(DnsScope, dns_scopes); |
85 | DnsScope *unicast_scope; | |
86 | ||
1716f6dc LP |
87 | /* LLMNR */ |
88 | int llmnr_ipv4_udp_fd; | |
89 | int llmnr_ipv6_udp_fd; | |
623a4c97 LP |
90 | int llmnr_ipv4_tcp_fd; |
91 | int llmnr_ipv6_tcp_fd; | |
1716f6dc LP |
92 | |
93 | sd_event_source *llmnr_ipv4_udp_event_source; | |
94 | sd_event_source *llmnr_ipv6_udp_event_source; | |
623a4c97 LP |
95 | sd_event_source *llmnr_ipv4_tcp_event_source; |
96 | sd_event_source *llmnr_ipv6_tcp_event_source; | |
1716f6dc | 97 | |
74b2466e LP |
98 | /* dbus */ |
99 | sd_bus *bus; | |
100 | sd_event_source *bus_retry_event_source; | |
623a4c97 LP |
101 | |
102 | /* The hostname we publish on LLMNR and mDNS */ | |
103 | char *hostname; | |
104 | DnsResourceKey *host_ipv4_key; | |
105 | DnsResourceKey *host_ipv6_key; | |
eb60f9cd LP |
106 | |
107 | /* Watch the system hostname */ | |
108 | int hostname_fd; | |
109 | sd_event_source *hostname_event_source; | |
091a364c TG |
110 | }; |
111 | ||
112 | /* Manager */ | |
113 | ||
114 | int manager_new(Manager **ret); | |
74b2466e LP |
115 | Manager* manager_free(Manager *m); |
116 | ||
edc501d4 | 117 | int manager_start(Manager *m); |
5cb36f41 | 118 | int manager_read_resolv_conf(Manager *m); |
74b2466e LP |
119 | int manager_write_resolv_conf(Manager *m); |
120 | ||
2c27fbca LP |
121 | DnsServer *manager_set_dns_server(Manager *m, DnsServer *s); |
122 | DnsServer *manager_find_dns_server(Manager *m, int family, const union in_addr_union *in_addr); | |
74b2466e LP |
123 | DnsServer *manager_get_dns_server(Manager *m); |
124 | void manager_next_dns_server(Manager *m); | |
ec2c5e43 | 125 | |
e1c95994 | 126 | uint32_t manager_find_mtu(Manager *m); |
091a364c | 127 | |
623a4c97 | 128 | int manager_send(Manager *m, int fd, int ifindex, int family, const union in_addr_union *addr, uint16_t port, DnsPacket *p); |
1716f6dc | 129 | int manager_recv(Manager *m, int fd, DnsProtocol protocol, DnsPacket **ret); |
74b2466e | 130 | |
1716f6dc | 131 | int manager_dns_ipv4_fd(Manager *m); |
74b2466e | 132 | int manager_dns_ipv6_fd(Manager *m); |
1716f6dc LP |
133 | int manager_llmnr_ipv4_udp_fd(Manager *m); |
134 | int manager_llmnr_ipv6_udp_fd(Manager *m); | |
623a4c97 LP |
135 | int manager_llmnr_ipv4_tcp_fd(Manager *m); |
136 | int manager_llmnr_ipv6_tcp_fd(Manager *m); | |
137 | ||
138 | int manager_ifindex_is_loopback(Manager *m, int ifindex); | |
139 | int manager_find_ifindex(Manager *m, int family, const union in_addr_union *in_addr); | |
4e945a6f | 140 | LinkAddress* manager_find_link_address(Manager *m, int family, const union in_addr_union *in_addr); |
ec2c5e43 | 141 | |
eb60f9cd | 142 | void manager_refresh_rrs(Manager *m); |
ec2c5e43 | 143 | int manager_next_hostname(Manager *m); |
74b2466e | 144 | |
ec2c5e43 | 145 | int manager_our_packet(Manager *m, DnsPacket *p); |
091a364c TG |
146 | |
147 | DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free); | |
091a364c | 148 | |
623a4c97 | 149 | #define EXTRA_CMSG_SPACE 1024 |
4e945a6f LP |
150 | |
151 | const char* support_to_string(Support p) _const_; | |
152 | int support_from_string(const char *s) _pure_; |