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/* SPDX-License-Identifier: LGPL-2.1+ */
/***
This file is part of systemd.
Copyright 2014 Kay Sievers, 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 "alloc-util.h"
#include "timesyncd-server.h"
int server_address_new(
ServerName *n,
ServerAddress **ret,
const union sockaddr_union *sockaddr,
socklen_t socklen) {
ServerAddress *a, *tail;
assert(n);
assert(sockaddr);
assert(socklen >= offsetof(struct sockaddr, sa_data));
assert(socklen <= sizeof(union sockaddr_union));
a = new0(ServerAddress, 1);
if (!a)
return -ENOMEM;
memcpy(&a->sockaddr, sockaddr, socklen);
a->socklen = socklen;
LIST_FIND_TAIL(addresses, n->addresses, tail);
LIST_INSERT_AFTER(addresses, n->addresses, tail, a);
a->name = n;
if (ret)
*ret = a;
return 0;
}
ServerAddress* server_address_free(ServerAddress *a) {
if (!a)
return NULL;
if (a->name) {
LIST_REMOVE(addresses, a->name->addresses, a);
if (a->name->manager && a->name->manager->current_server_address == a)
manager_set_server_address(a->name->manager, NULL);
}
return mfree(a);
}
int server_name_new(
Manager *m,
ServerName **ret,
ServerType type,
const char *string) {
ServerName *n, *tail;
assert(m);
assert(string);
n = new0(ServerName, 1);
if (!n)
return -ENOMEM;
n->type = type;
n->string = strdup(string);
if (!n->string) {
free(n);
return -ENOMEM;
}
if (type == SERVER_SYSTEM) {
LIST_FIND_TAIL(names, m->system_servers, tail);
LIST_INSERT_AFTER(names, m->system_servers, tail, n);
} else if (type == SERVER_LINK) {
LIST_FIND_TAIL(names, m->link_servers, tail);
LIST_INSERT_AFTER(names, m->link_servers, tail, n);
} else if (type == SERVER_FALLBACK) {
LIST_FIND_TAIL(names, m->fallback_servers, tail);
LIST_INSERT_AFTER(names, m->fallback_servers, tail, n);
} else
assert_not_reached("Unknown server type");
n->manager = m;
if (type != SERVER_FALLBACK &&
m->current_server_name &&
m->current_server_name->type == SERVER_FALLBACK)
manager_set_server_name(m, NULL);
log_debug("Added new server %s.", string);
if (ret)
*ret = n;
return 0;
}
ServerName *server_name_free(ServerName *n) {
if (!n)
return NULL;
server_name_flush_addresses(n);
if (n->manager) {
if (n->type == SERVER_SYSTEM)
LIST_REMOVE(names, n->manager->system_servers, n);
else if (n->type == SERVER_LINK)
LIST_REMOVE(names, n->manager->link_servers, n);
else if (n->type == SERVER_FALLBACK)
LIST_REMOVE(names, n->manager->fallback_servers, n);
else
assert_not_reached("Unknown server type");
if (n->manager->current_server_name == n)
manager_set_server_name(n->manager, NULL);
}
log_debug("Removed server %s.", n->string);
free(n->string);
return mfree(n);
}
void server_name_flush_addresses(ServerName *n) {
assert(n);
while (n->addresses)
server_address_free(n->addresses);
}
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