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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include "alloc-util.h"
#include "constants.h"
#include "dns-domain.h"
#include "extract-word.h"
#include "string-util.h"
#include "timesyncd-conf.h"
#include "timesyncd-manager.h"
#include "timesyncd-server.h"
int manager_parse_server_string(Manager *m, ServerType type, const char *string) {
ServerName *first;
int r;
assert(m);
assert(string);
first = type == SERVER_FALLBACK ? m->fallback_servers : m->system_servers;
if (type == SERVER_FALLBACK)
m->have_fallbacks = true;
for (;;) {
_cleanup_free_ char *word = NULL;
bool found = false;
r = extract_first_word(&string, &word, NULL, 0);
if (r < 0)
return log_error_errno(r, "Failed to parse timesyncd server syntax \"%s\": %m", string);
if (r == 0)
break;
r = dns_name_is_valid_or_address(word);
if (r < 0)
return log_error_errno(r, "Failed to check validity of NTP server name or address '%s': %m", word);
if (r == 0) {
log_error("Invalid NTP server name or address, ignoring: %s", word);
continue;
}
/* Filter out duplicates */
LIST_FOREACH(names, n, first)
if (streq_ptr(n->string, word)) {
found = true;
break;
}
if (found)
continue;
r = server_name_new(m, NULL, type, word);
if (r < 0)
return r;
}
return 0;
}
int manager_parse_fallback_string(Manager *m, const char *string) {
if (m->have_fallbacks)
return 0;
return manager_parse_server_string(m, SERVER_FALLBACK, string);
}
int config_parse_servers(
const char *unit,
const char *filename,
unsigned line,
const char *section,
unsigned section_line,
const char *lvalue,
int ltype,
const char *rvalue,
void *data,
void *userdata) {
Manager *m = userdata;
int r;
assert(filename);
assert(lvalue);
assert(rvalue);
if (isempty(rvalue))
manager_flush_server_names(m, ltype);
else {
r = manager_parse_server_string(m, ltype, rvalue);
if (r < 0) {
log_syntax(unit, LOG_WARNING, filename, line, r,
"Failed to parse NTP server string '%s', ignoring: %m", rvalue);
return 0;
}
}
return 0;
}
int manager_parse_config_file(Manager *m) {
int r;
assert(m);
r = config_parse_standard_file_with_dropins(
"systemd/timesyncd.conf",
"Time\0",
config_item_perf_lookup, timesyncd_gperf_lookup,
CONFIG_PARSE_WARN,
/* userdata= */ m);
if (r < 0)
return r;
if (m->poll_interval_min_usec < 16 * USEC_PER_SEC) {
log_warning("Invalid PollIntervalMinSec=. Using default value.");
m->poll_interval_min_usec = NTP_POLL_INTERVAL_MIN_USEC;
}
if (m->poll_interval_max_usec < m->poll_interval_min_usec) {
log_warning("PollIntervalMaxSec= is smaller than PollIntervalMinSec=. Using default value.");
m->poll_interval_max_usec = MAX(NTP_POLL_INTERVAL_MAX_USEC, m->poll_interval_min_usec * 32);
}
if (m->connection_retry_usec < 1 * USEC_PER_SEC) {
log_warning("Invalid ConnectionRetrySec=. Using default value.");
m->connection_retry_usec = DEFAULT_CONNECTION_RETRY_USEC;
}
return r;
}
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