resolved-dns-server.c revision 74b2466e14a1961bf3ac0e8a60cfaceec705bd59
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering/***
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering This file is part of systemd.
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering Copyright 2014 Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering systemd is free software; you can redistribute it and/or modify it
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering under the terms of the GNU Lesser General Public License as published by
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering the Free Software Foundation; either version 2.1 of the License, or
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering (at your option) any later version.
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering systemd is distributed in the hope that it will be useful, but
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering WITHOUT ANY WARRANTY; without even the implied warranty of
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering Lesser General Public License for more details.
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering You should have received a copy of the GNU Lesser General Public License
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering along with systemd; If not, see <http://www.gnu.org/licenses/>.
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering***/
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering#include "resolved-dns-server.h"
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poetteringint dns_server_new(
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering Manager *m,
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering DnsServer **ret,
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering DnsServerSource source,
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering Link *l,
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering unsigned char family,
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering union in_addr_union *in_addr) {
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering DnsServer *s, *tail;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering assert(m);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering assert(in_addr);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering assert(source < _DNS_SERVER_SOURCE_MAX);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering s = new0(DnsServer, 1);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (!s)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering return -ENOMEM;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering s->source = source;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering s->family = family;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering s->address = *in_addr;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (source == DNS_SERVER_LINK) {
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering assert(l);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering LIST_FIND_TAIL(servers, l->link_dns_servers, tail);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering LIST_INSERT_AFTER(servers, l->link_dns_servers, tail, s);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering s->link = l;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering } else if (source == DNS_SERVER_DHCP) {
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering assert(l);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering LIST_FIND_TAIL(servers, l->dhcp_dns_servers, tail);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering LIST_INSERT_AFTER(servers, l->dhcp_dns_servers, tail, s);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering s->link = l;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering } else {
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering assert(!l);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering LIST_FIND_TAIL(servers, m->dns_servers, tail);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering LIST_INSERT_AFTER(servers, m->dns_servers, tail, s);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering }
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering s->manager = m;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (ret)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering *ret = s;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering return 0;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering}
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart PoetteringDnsServer* dns_server_free(DnsServer *s) {
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (!s)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering return NULL;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (s->source == DNS_SERVER_LINK) {
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (s->link)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering LIST_REMOVE(servers, s->link->link_dns_servers, s);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering } else if (s->source == DNS_SERVER_DHCP) {
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (s->link)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering LIST_REMOVE(servers, s->link->dhcp_dns_servers, s);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering } else if (s->source == DNS_SERVER_SYSTEM) {
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (s->manager)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering LIST_REMOVE(servers, s->manager->dns_servers, s);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering }
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (s->link && s->link->current_dns_server == s)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering s->link->current_dns_server = NULL;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (s->manager && s->manager->current_dns_server == s)
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering s->manager->current_dns_server = NULL;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering free(s);
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering return NULL;
74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering}