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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include "alloc-util.h"
#include "string-table.h"
#include "timesyncd-server.h"
static const char * const server_type_table[_SERVER_TYPE_MAX] = {
[SERVER_SYSTEM] = "system",
[SERVER_FALLBACK] = "fallback",
[SERVER_LINK] = "link",
[SERVER_RUNTIME] = "runtime",
};
DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(server_type, ServerType);
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 = new(ServerAddress, 1);
if (!a)
return -ENOMEM;
*a = (ServerAddress) {
.name = n,
.socklen = socklen,
};
memcpy(&a->sockaddr, sockaddr, socklen);
tail = LIST_FIND_TAIL(addresses, n->addresses);
LIST_INSERT_AFTER(addresses, n->addresses, tail, a);
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);
}
static int enable_ntp_server_defer_event(Manager *m, ServerType type) {
int r;
assert(m);
assert((type >= 0) && (type < _SERVER_TYPE_MAX));
m->ntp_server_change_mask |= 1U << type;
r = bus_manager_emit_ntp_server_changed(m);
if (r < 0)
return r;
return 1;
}
int server_name_new(
Manager *m,
ServerName **ret,
ServerType type,
const char *string) {
int r;
ServerName *n;
assert(m);
assert(string);
n = new(ServerName, 1);
if (!n)
return -ENOMEM;
*n = (ServerName) {
.manager = m,
.type = type,
.string = strdup(string),
};
if (!n->string) {
free(n);
return -ENOMEM;
}
switch (type) {
case SERVER_SYSTEM:
LIST_APPEND(names, m->system_servers, n);
break;
case SERVER_LINK:
LIST_APPEND(names, m->link_servers, n);
break;
case SERVER_FALLBACK:
LIST_APPEND(names, m->fallback_servers, n);
break;
case SERVER_RUNTIME:
LIST_APPEND(names, m->runtime_servers, n);
break;
default:
assert_not_reached();
}
r = enable_ntp_server_defer_event(m, type);
if (r < 0)
log_debug_errno(r, "Failed to enable ntp server defer event, ignoring: %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 %s server %s.", server_type_to_string(type), string);
if (ret)
*ret = n;
return 0;
}
ServerName *server_name_free(ServerName *n) {
int r;
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 if (n->type == SERVER_RUNTIME)
LIST_REMOVE(names, n->manager->runtime_servers, n);
else
assert_not_reached();
r = enable_ntp_server_defer_event(n->manager, n->type);
if (r < 0)
log_debug_errno(r, "Failed to enable ntp server defer event, ignoring: %m");
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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