diff options
Diffstat (limited to 'src/resolve/resolved-dns-server.c')
| -rw-r--r-- | src/resolve/resolved-dns-server.c | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/src/resolve/resolved-dns-server.c b/src/resolve/resolved-dns-server.c deleted file mode 100644 index caf06fe450..0000000000 --- a/src/resolve/resolved-dns-server.c +++ /dev/null @@ -1,127 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2014 Lennart Poettering - - 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 "siphash24.h" - -#include "resolved-dns-server.h" - -int dns_server_new( - Manager *m, - DnsServer **ret, - DnsServerType type, - Link *l, - int family, - const union in_addr_union *in_addr) { - - DnsServer *s, *tail; - - assert(m); - assert((type == DNS_SERVER_LINK) == !!l); - assert(in_addr); - - s = new0(DnsServer, 1); - if (!s) - return -ENOMEM; - - s->type = type; - s->family = family; - s->address = *in_addr; - - if (type == DNS_SERVER_LINK) { - LIST_FIND_TAIL(servers, l->dns_servers, tail); - LIST_INSERT_AFTER(servers, l->dns_servers, tail, s); - s->link = l; - } else if (type == DNS_SERVER_SYSTEM) { - LIST_FIND_TAIL(servers, m->dns_servers, tail); - LIST_INSERT_AFTER(servers, m->dns_servers, tail, s); - } else if (type == DNS_SERVER_FALLBACK) { - LIST_FIND_TAIL(servers, m->fallback_dns_servers, tail); - LIST_INSERT_AFTER(servers, m->fallback_dns_servers, tail, s); - } else - assert_not_reached("Unknown server type"); - - s->manager = m; - - /* A new DNS server that isn't fallback is added and the one - * we used so far was a fallback one? Then let's try to pick - * the new one */ - if (type != DNS_SERVER_FALLBACK && - m->current_dns_server && - m->current_dns_server->type == DNS_SERVER_FALLBACK) - manager_set_dns_server(m, NULL); - - if (ret) - *ret = s; - - return 0; -} - -DnsServer* dns_server_free(DnsServer *s) { - if (!s) - return NULL; - - if (s->manager) { - if (s->type == DNS_SERVER_LINK) - LIST_REMOVE(servers, s->link->dns_servers, s); - else if (s->type == DNS_SERVER_SYSTEM) - LIST_REMOVE(servers, s->manager->dns_servers, s); - else if (s->type == DNS_SERVER_FALLBACK) - LIST_REMOVE(servers, s->manager->fallback_dns_servers, s); - else - assert_not_reached("Unknown server type"); - - if (s->manager->current_dns_server == s) - manager_set_dns_server(s->manager, NULL); - } - - if (s->link && s->link->current_dns_server == s) - link_set_dns_server(s->link, NULL); - - free(s); - - return NULL; -} - -static unsigned long dns_server_hash_func(const void *p, const uint8_t hash_key[HASH_KEY_SIZE]) { - const DnsServer *s = p; - uint64_t u; - - siphash24((uint8_t*) &u, &s->address, FAMILY_ADDRESS_SIZE(s->family), hash_key); - u = u * hash_key[0] + u + s->family; - - return u; -} - -static int dns_server_compare_func(const void *a, const void *b) { - const DnsServer *x = a, *y = b; - - if (x->family < y->family) - return -1; - if (x->family > y->family) - return 1; - - return memcmp(&x->address, &y->address, FAMILY_ADDRESS_SIZE(x->family)); -} - -const struct hash_ops dns_server_hash_ops = { - .hash = dns_server_hash_func, - .compare = dns_server_compare_func -}; |