faraphel/chrony
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chrony/conf.c

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/*
chronyd/chronyc - Programs for keeping computer clocks accurate.
**********************************************************************
* Copyright (C) Richard P. Curnow 1997-2003
* Copyright (C) Miroslav Lichvar 2009-2014
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
**********************************************************************
=======================================================================
Module that reads and processes the configuration file.
*/
#include "config.h"
#include "sysincl.h"
#include "conf.h"
#include "ntp_sources.h"
#include "ntp_core.h"
#include "refclock.h"
#include "cmdmon.h"
#include "srcparams.h"
#include "logging.h"
#include "nameserv.h"
#include "memory.h"
#include "cmdparse.h"
#include "broadcast.h"
#include "util.h"
/* ================================================== */
/* Forward prototypes */
static int parse_string(char *line, char **result);
static int parse_int(char *line, int *result);
static int parse_unsignedlong(char *, unsigned long *result);
static int parse_double(char *line, double *result);
static int parse_null(char *line);
static void parse_allow(char *);
static void parse_bindacqaddress(char *);
static void parse_bindaddress(char *);
static void parse_bindcmdaddress(char *);
static void parse_broadcast(char *);
static void parse_clientloglimit(char *);
static void parse_cmdallow(char *);
static void parse_cmddeny(char *);
static void parse_deny(char *);
static void parse_fallbackdrift(char *);
static void parse_include(char *);
static void parse_initstepslew(char *);
static void parse_local(char *);
static void parse_log(char *);
static void parse_mailonchange(char *);
static void parse_makestep(char *);
static void parse_maxchange(char *);
static void parse_peer(char *);
static void parse_refclock(char *);
static void parse_server(char *);
static void parse_tempcomp(char *);
/* ================================================== */
/* Configuration variables */
static int restarted = 0;
static int generate_command_key = 0;
static char *rtc_device = "/dev/rtc";
static int acquisition_port = -1;
static int ntp_port = 123;
static char *keys_file = NULL;
static char *drift_file = NULL;
static char *rtc_file = NULL;
static unsigned long command_key_id;
static double max_update_skew = 1000.0;
static double correction_time_ratio = 3.0;
static double max_clock_error = 1.0; /* in ppm */
static double max_slew_rate = 1e6 / 12.0; /* in ppm */
static double reselect_distance = 1e-4;
static double stratum_weight = 1.0;
static double combine_limit = 3.0;
static int cmd_port = DEFAULT_CANDM_PORT;
static int do_log_measurements = 0;
static int do_log_statistics = 0;
static int do_log_tracking = 0;
static int do_log_rtc = 0;
static int do_log_refclocks = 0;
static int do_log_tempcomp = 0;
static int do_dump_on_exit = 0;
static int log_banner = 32;
static char *logdir = ".";
static char *dumpdir = ".";
static int enable_local=0;
static int local_stratum;
static int n_init_srcs;
/* Threshold (in seconds) - if absolute value of initial error is less
than this, slew instead of stepping */
static double init_slew_threshold;
#define MAX_INIT_SRCS 8
static IPAddr init_srcs_ip[MAX_INIT_SRCS];
static int enable_manual=0;
/* Flag set if the RTC runs UTC (default is it runs local time
incl. daylight saving). */
static int rtc_on_utc = 0;
/* Filename used to read the hwclock(8) LOCAL/UTC setting */
static char *hwclock_file = NULL;
/* Flag set if the RTC should be automatically synchronised by kernel */
static int rtc_sync = 0;
/* Limit and threshold for clock stepping */
static int make_step_limit = 0;
static double make_step_threshold = 0.0;
/* Threshold for automatic RTC trimming */
static double rtc_autotrim_threshold = 0.0;
/* Number of updates before offset checking, number of ignored updates
before exiting and the maximum allowed offset */
static int max_offset_delay = -1;
static int max_offset_ignore;
static double max_offset;
/* Maximum and minimum number of samples per source */
static int max_samples = 0; /* no limit */
static int min_samples = 0;
/* Flag set if we should log to syslog when a time adjustment
exceeding the threshold is initiated */
static int do_log_change = 0;
static double log_change_threshold = 0.0;
static char *mail_user_on_change = NULL;
static double mail_change_threshold = 0.0;
/* Flag indicating that we don't want to log clients, e.g. to save
memory */
static int no_client_log = 0;
/* Limit memory allocated for the clients log */
static unsigned long client_log_limit = 524288;
/* Minimum and maximum fallback drift intervals */
static int fb_drift_min = 0;
static int fb_drift_max = 0;
/* IP addresses for binding the NTP server sockets to. UNSPEC family means
INADDR_ANY will be used */
static IPAddr bind_address4, bind_address6;
/* IP addresses for binding the NTP client sockets to. UNSPEC family means
INADDR_ANY will be used */
static IPAddr bind_acq_address4, bind_acq_address6;
/* IP addresses for binding the command socket to. UNSPEC family means
use the value of bind_address */
static IPAddr bind_cmd_address4, bind_cmd_address6;
/* Filename to use for storing pid of running chronyd, to prevent multiple
* chronyds being started. */
static char *pidfile = "/var/run/chronyd.pid";
/* Temperature sensor, update interval and compensation coefficients */
static char *tempcomp_file = NULL;
static double tempcomp_interval;
static double tempcomp_T0, tempcomp_k0, tempcomp_k1, tempcomp_k2;
static int sched_priority = 0;
static int lock_memory = 0;
/* Name of a system timezone containing leap seconds occuring at midnight */
static char *leapsec_tz = NULL;
/* Name of the user to which will be dropped root privileges. */
static char *user = DEFAULT_USER;
typedef struct {
NTP_Source_Type type;
CPS_NTP_Source params;
} NTP_Source;
#define MAX_NTP_SOURCES 64
static NTP_Source ntp_sources[MAX_NTP_SOURCES];
static int n_ntp_sources = 0;
#define MAX_RCL_SOURCES 8
static RefclockParameters refclock_sources[MAX_RCL_SOURCES];
static int n_refclock_sources = 0;
typedef struct _AllowDeny {
struct _AllowDeny *next;
struct _AllowDeny *prev;
IPAddr ip;
int subnet_bits;
int all; /* 1 to override existing more specific defns */
int allow; /* 0 for deny, 1 for allow */
} AllowDeny;
static AllowDeny ntp_auth_list = {&ntp_auth_list, &ntp_auth_list};
static AllowDeny cmd_auth_list = {&cmd_auth_list, &cmd_auth_list};
typedef struct {
/* Both in host (not necessarily network) order */
IPAddr addr;
unsigned short port;
int interval;
} NTP_Broadcast_Destination;
static NTP_Broadcast_Destination *broadcasts = NULL;
static int max_broadcasts = 0;
static int n_broadcasts = 0;
/* ================================================== */
/* The line number in the configuration file being processed */
static int line_number;
static const char *processed_file;
static const char *processed_command;
/* ================================================== */
static void
command_parse_error(void)
{
LOG_FATAL(LOGF_Configure, "Could not parse %s directive at line %d%s%s",
processed_command, line_number, processed_file ? " in file " : "",
processed_file ? processed_file : "");
}
/* ================================================== */
static void
other_parse_error(const char *message)
{
LOG_FATAL(LOGF_Configure, "%s at line %d%s%s",
message, line_number, processed_file ? " in file " : "",
processed_file ? processed_file : "");
}
/* ================================================== */
static void
check_number_of_args(char *line, int num)
{
/* The line is normalized, between arguments is just one space */
if (*line == ' ')
line++;
if (*line)
num--;
for (; *line; line++) {
if (*line == ' ')
num--;
}
if (num) {
LOG_FATAL(LOGF_Configure, "%s arguments for %s directive at line %d%s%s",
num > 0 ? "Missing" : "Too many",
processed_command, line_number, processed_file ? " in file " : "",
processed_file ? processed_file : "");
}
}
/* ================================================== */
void
CNF_SetRestarted(int r)
{
restarted = r;
}
/* ================================================== */
/* Read the configuration file */
void
CNF_ReadFile(const char *filename)
{
FILE *in;
char line[2048];
int i;
in = fopen(filename, "r");
if (!in) {
LOG_FATAL(LOGF_Configure, "Could not open configuration file %s", filename);
return;
}
for (i = 1; fgets(line, sizeof(line), in); i++) {
CNF_ParseLine(filename, i, line);
}
fclose(in);
}
/* ================================================== */
/* Parse one configuration line */
void
CNF_ParseLine(const char *filename, int number, char *line)
{
char *p, *command;
/* Set global variables used in error messages */
processed_file = filename;
line_number = number;
/* Remove extra white-space and comments */
CPS_NormalizeLine(line);
/* Skip blank lines */
if (!*line)
return;
/* We have a real line, now try to match commands */
processed_command = command = line;
p = CPS_SplitWord(line);
if (!strcasecmp(command, "acquisitionport")) {
parse_int(p, &acquisition_port);
} else if (!strcasecmp(command, "allow")) {
parse_allow(p);
} else if (!strcasecmp(command, "bindacqaddress")) {
parse_bindacqaddress(p);
} else if (!strcasecmp(command, "bindaddress")) {
parse_bindaddress(p);
} else if (!strcasecmp(command, "bindcmdaddress")) {
parse_bindcmdaddress(p);
} else if (!strcasecmp(command, "broadcast")) {
parse_broadcast(p);
} else if (!strcasecmp(command, "clientloglimit")) {
parse_clientloglimit(p);
} else if (!strcasecmp(command, "cmdallow")) {
parse_cmdallow(p);
} else if (!strcasecmp(command, "cmddeny")) {
parse_cmddeny(p);
} else if (!strcasecmp(command, "cmdport")) {
parse_int(p, &cmd_port);
} else if (!strcasecmp(command, "combinelimit")) {
parse_double(p, &combine_limit);
} else if (!strcasecmp(command, "commandkey")) {
parse_unsignedlong(p, &command_key_id);
} else if (!strcasecmp(command, "corrtimeratio")) {
parse_double(p, &correction_time_ratio);
} else if (!strcasecmp(command, "deny")) {
parse_deny(p);
} else if (!strcasecmp(command, "driftfile")) {
parse_string(p, &drift_file);
} else if (!strcasecmp(command, "dumpdir")) {
parse_string(p, &dumpdir);
} else if (!strcasecmp(command, "dumponexit")) {
do_dump_on_exit = parse_null(p);
} else if (!strcasecmp(command, "fallbackdrift")) {
parse_fallbackdrift(p);
} else if (!strcasecmp(command, "generatecommandkey")) {
generate_command_key = parse_null(p);
} else if (!strcasecmp(command, "hwclockfile")) {
parse_string(p, &hwclock_file);
} else if (!strcasecmp(command, "include")) {
parse_include(p);
} else if (!strcasecmp(command, "initstepslew")) {
parse_initstepslew(p);
} else if (!strcasecmp(command, "keyfile")) {
parse_string(p, &keys_file);
} else if (!strcasecmp(command, "leapsectz")) {
parse_string(p, &leapsec_tz);
} else if (!strcasecmp(command, "linux_freq_scale")) {
LOG(LOGS_WARN, LOGF_Configure, "%s directive is no longer supported", command);
} else if (!strcasecmp(command, "linux_hz")) {
LOG(LOGS_WARN, LOGF_Configure, "%s directive is no longer supported", command);
} else if (!strcasecmp(command, "local")) {
parse_local(p);
} else if (!strcasecmp(command, "lock_all")) {
lock_memory = parse_null(p);
} else if (!strcasecmp(command, "log")) {
parse_log(p);
} else if (!strcasecmp(command, "logbanner")) {
parse_int(p, &log_banner);
} else if (!strcasecmp(command, "logchange")) {
do_log_change = parse_double(p, &log_change_threshold);
} else if (!strcasecmp(command, "logdir")) {
parse_string(p, &logdir);
} else if (!strcasecmp(command, "mailonchange")) {
parse_mailonchange(p);
} else if (!strcasecmp(command, "makestep")) {
parse_makestep(p);
} else if (!strcasecmp(command, "manual")) {
enable_manual = parse_null(p);
} else if (!strcasecmp(command, "maxchange")) {
parse_maxchange(p);
} else if (!strcasecmp(command, "maxclockerror")) {
parse_double(p, &max_clock_error);
} else if (!strcasecmp(command, "maxsamples")) {
parse_int(p, &max_samples);
} else if (!strcasecmp(command, "maxslewrate")) {
parse_double(p, &max_slew_rate);
} else if (!strcasecmp(command, "maxupdateskew")) {
parse_double(p, &max_update_skew);
} else if (!strcasecmp(command, "minsamples")) {
parse_int(p, &min_samples);
} else if (!strcasecmp(command, "noclientlog")) {
no_client_log = parse_null(p);
} else if (!strcasecmp(command, "peer")) {
parse_peer(p);
} else if (!strcasecmp(command, "pidfile")) {
parse_string(p, &pidfile);
} else if (!strcasecmp(command, "port")) {
parse_int(p, &ntp_port);
} else if (!strcasecmp(command, "refclock")) {
parse_refclock(p);
} else if (!strcasecmp(command, "reselectdist")) {
parse_double(p, &reselect_distance);
} else if (!strcasecmp(command, "rtcautotrim")) {
parse_double(p, &rtc_autotrim_threshold);
} else if (!strcasecmp(command, "rtcdevice")) {
parse_string(p, &rtc_device);
} else if (!strcasecmp(command, "rtcfile")) {
parse_string(p, &rtc_file);
} else if (!strcasecmp(command, "rtconutc")) {
rtc_on_utc = parse_null(p);
} else if (!strcasecmp(command, "rtcsync")) {
rtc_sync = parse_null(p);
} else if (!strcasecmp(command, "sched_priority")) {
parse_int(p, &sched_priority);
} else if (!strcasecmp(command, "server")) {
parse_server(p);
} else if (!strcasecmp(command, "stratumweight")) {
parse_double(p, &stratum_weight);
} else if (!strcasecmp(command, "tempcomp")) {
parse_tempcomp(p);
} else if (!strcasecmp(command, "user")) {
parse_string(p, &user);
} else {
other_parse_error("Invalid command");
}
}
/* ================================================== */
static int
parse_string(char *line, char **result)
{
check_number_of_args(line, 1);
*result = strdup(line);
return 1;
}
/* ================================================== */
static int
parse_int(char *line, int *result)
{
check_number_of_args(line, 1);
if (sscanf(line, "%d", result) != 1) {
command_parse_error();
return 0;
}
return 1;
}
/* ================================================== */
static int
parse_unsignedlong(char *line, unsigned long *result)
{
check_number_of_args(line, 1);
if (sscanf(line, "%lu", result) != 1) {
command_parse_error();
return 0;
}
return 1;
}
/* ================================================== */
static int
parse_double(char *line, double *result)
{
check_number_of_args(line, 1);
if (sscanf(line, "%lf", result) != 1) {
command_parse_error();
return 0;
}
return 1;
}
/* ================================================== */
static int
parse_null(char *line)
{
check_number_of_args(line, 0);
return 1;
}
/* ================================================== */
static void
parse_source(char *line, NTP_Source_Type type)
{
CPS_Status status;
if (n_ntp_sources >= MAX_NTP_SOURCES)
return;
ntp_sources[n_ntp_sources].type = type;
status = CPS_ParseNTPSourceAdd(line, &ntp_sources[n_ntp_sources].params);
switch (status) {
case CPS_Success:
n_ntp_sources++;
break;
case CPS_BadOption:
other_parse_error("Invalid server/peer parameter");
break;
case CPS_BadHost:
other_parse_error("Invalid host/IP address");
break;
case CPS_BadPort:
other_parse_error("Unreadable port");
break;
case CPS_BadMinpoll:
other_parse_error("Unreadable minpoll");
break;
case CPS_BadMaxpoll:
other_parse_error("Unreadable maxpoll");
break;
case CPS_BadPresend:
other_parse_error("Unreadable presend");
break;
case CPS_BadMaxdelaydevratio:
other_parse_error("Unreadable maxdelaydevratio");
break;
case CPS_BadMaxdelayratio:
other_parse_error("Unreadable maxdelayratio");
break;
case CPS_BadMaxdelay:
other_parse_error("Unreadable maxdelay");
break;
case CPS_BadKey:
other_parse_error("Unreadable key");
break;
case CPS_BadMinstratum:
other_parse_error("Unreadable minstratum");
break;
case CPS_BadPolltarget:
other_parse_error("Unreadable polltarget");
break;
}
}
/* ================================================== */
static void
parse_server(char *line)
{
parse_source(line, NTP_SERVER);
}
/* ================================================== */
static void
parse_peer(char *line)
{
parse_source(line, NTP_PEER);
}
/* ================================================== */
static void
parse_refclock(char *line)
{
int i, n, poll, dpoll, filter_length, pps_rate;
uint32_t ref_id, lock_ref_id;
double offset, delay, precision, max_dispersion;
char *p, *cmd, *name, *param;
unsigned char ref[5];
SRC_SelectOption sel_option;
i = n_refclock_sources;
if (i >= MAX_RCL_SOURCES)
return;
poll = 4;
dpoll = 0;
filter_length = 64;
pps_rate = 0;
offset = 0.0;
delay = 1e-9;
precision = 0.0;
max_dispersion = 0.0;
ref_id = 0;
lock_ref_id = 0;
sel_option = SRC_SelectNormal;
if (!*line) {
command_parse_error();
return;
}
p = line;
line = CPS_SplitWord(line);
if (!*line) {
command_parse_error();
return;
}
name = strdup(p);
p = line;
line = CPS_SplitWord(line);
param = strdup(p);
while (*line) {
cmd = line;
line = CPS_SplitWord(line);
if (!strcasecmp(cmd, "refid")) {
if (sscanf(line, "%4s%n", (char *)ref, &n) != 1)
break;
ref_id = ref[0] << 24 | ref[1] << 16 | ref[2] << 8 | ref[3];
} else if (!strcasecmp(cmd, "lock")) {
if (sscanf(line, "%4s%n", (char *)ref, &n) != 1)
break;
lock_ref_id = ref[0] << 24 | ref[1] << 16 | ref[2] << 8 | ref[3];
} else if (!strcasecmp(cmd, "poll")) {
if (sscanf(line, "%d%n", &poll, &n) != 1) {
break;
}
} else if (!strcasecmp(cmd, "dpoll")) {
if (sscanf(line, "%d%n", &dpoll, &n) != 1) {
break;
}
} else if (!strcasecmp(cmd, "filter")) {
if (sscanf(line, "%d%n", &filter_length, &n) != 1) {
break;
}
} else if (!strcasecmp(cmd, "rate")) {
if (sscanf(line, "%d%n", &pps_rate, &n) != 1)
break;
} else if (!strcasecmp(cmd, "offset")) {
if (sscanf(line, "%lf%n", &offset, &n) != 1)
break;
} else if (!strcasecmp(cmd, "delay")) {
if (sscanf(line, "%lf%n", &delay, &n) != 1)
break;
} else if (!strcasecmp(cmd, "precision")) {
if (sscanf(line, "%lf%n", &precision, &n) != 1)
break;
} else if (!strcasecmp(cmd, "maxdispersion")) {
if (sscanf(line, "%lf%n", &max_dispersion, &n) != 1)
break;
} else if (!strcasecmp(cmd, "noselect")) {
n = 0;
sel_option = SRC_SelectNoselect;
} else if (!strcasecmp(cmd, "prefer")) {
n = 0;
sel_option = SRC_SelectPrefer;
} else {
break;
}
line += n;
}
if (*line) {
other_parse_error("Invalid/unreadable refclock parameter");
return;
}
refclock_sources[i].driver_name = name;
refclock_sources[i].driver_parameter = param;
refclock_sources[i].driver_poll = dpoll;
refclock_sources[i].poll = poll;
refclock_sources[i].filter_length = filter_length;
refclock_sources[i].pps_rate = pps_rate;
refclock_sources[i].offset = offset;
refclock_sources[i].delay = delay;
refclock_sources[i].precision = precision;
refclock_sources[i].max_dispersion = max_dispersion;
refclock_sources[i].sel_option = sel_option;
refclock_sources[i].ref_id = ref_id;
refclock_sources[i].lock_ref_id = lock_ref_id;
n_refclock_sources++;
}
/* ================================================== */
static void
parse_log(char *line)
{
char *log_name;
do {
log_name = line;
line = CPS_SplitWord(line);
if (*log_name) {
if (!strcmp(log_name, "measurements")) {
do_log_measurements = 1;
} else if (!strcmp(log_name, "statistics")) {
do_log_statistics = 1;
} else if (!strcmp(log_name, "tracking")) {
do_log_tracking = 1;
} else if (!strcmp(log_name, "rtc")) {
do_log_rtc = 1;
} else if (!strcmp(log_name, "refclocks")) {
do_log_refclocks = 1;
} else if (!strcmp(log_name, "tempcomp")) {
do_log_tempcomp = 1;
} else {
other_parse_error("Invalid log parameter");
break;
}
} else {
break;
}
} while (1);
}
/* ================================================== */
static void
parse_local(char *line)
{
int stratum;
if (sscanf(line, "stratum%d", &stratum) == 1) {
local_stratum = stratum;
enable_local = 1;
} else {
command_parse_error();
}
}
/* ================================================== */
static void
parse_initstepslew(char *line)
{
char *p, *hostname;
IPAddr ip_addr;
/* Ignore the line if chronyd was started with -R. */
if (restarted) {
return;
}
n_init_srcs = 0;
p = CPS_SplitWord(line);
if (sscanf(line, "%lf", &init_slew_threshold) != 1) {
command_parse_error();
return;
}
while (*p) {
hostname = p;
p = CPS_SplitWord(p);
if (*hostname) {
if (DNS_Name2IPAddress(hostname, &ip_addr) == DNS_Success) {
init_srcs_ip[n_init_srcs] = ip_addr;
++n_init_srcs;
} else {
LOG(LOGS_WARN, LOGF_Configure, "Could not resolve address of initstepslew server %s", hostname);
}
if (n_init_srcs >= MAX_INIT_SRCS) {
other_parse_error("Too many initstepslew servers");
}
}
}
}
/* ================================================== */
static void
parse_clientloglimit(char *line)
{
check_number_of_args(line, 1);
if (sscanf(line, "%lu", &client_log_limit) != 1) {
command_parse_error();
}
if (client_log_limit == 0) {
/* unlimited */
client_log_limit = (unsigned long)-1;
}
}
/* ================================================== */
static void
parse_fallbackdrift(char *line)
{
check_number_of_args(line, 2);
if (sscanf(line, "%d %d", &fb_drift_min, &fb_drift_max) != 2) {
command_parse_error();
}
}
/* ================================================== */
static void
parse_makestep(char *line)
{
check_number_of_args(line, 2);
if (sscanf(line, "%lf %d", &make_step_threshold, &make_step_limit) != 2) {
make_step_limit = 0;
command_parse_error();
}
/* Disable limited makestep if chronyd was started with -R. */
if (restarted && make_step_limit > 0) {
make_step_limit = 0;
}
}
/* ================================================== */
static void
parse_maxchange(char *line)
{
check_number_of_args(line, 3);
if (sscanf(line, "%lf %d %d", &max_offset, &max_offset_delay, &max_offset_ignore) != 3) {
max_offset_delay = -1;
command_parse_error();
}
}
/* ================================================== */
static void
parse_mailonchange(char *line)
{
char *address;
check_number_of_args(line, 2);
address = line;
line = CPS_SplitWord(line);
if (sscanf(line, "%lf", &mail_change_threshold) == 1) {
mail_user_on_change = strdup(address);
} else {
mail_user_on_change = NULL;
command_parse_error();
}
}
/* ================================================== */
static void
parse_allow_deny(char *line, AllowDeny *list, int allow)
{
char *p;
unsigned long a, b, c, d, n;
int all = 0;
AllowDeny *new_node = NULL;
IPAddr ip_addr;
p = line;
if (!strncmp(p, "all", 3)) {
all = 1;
p = CPS_SplitWord(line);
}
if (!*p) {
/* Empty line applies to all addresses */
new_node = MallocNew(AllowDeny);
new_node->allow = allow;
new_node->all = all;
new_node->ip.family = IPADDR_UNSPEC;
new_node->subnet_bits = 0;
} else {
char *slashpos;
slashpos = strchr(p, '/');
if (slashpos) *slashpos = 0;
check_number_of_args(p, 1);
n = 0;
if (UTI_StringToIP(p, &ip_addr) ||
(n = sscanf(p, "%lu.%lu.%lu.%lu", &a, &b, &c, &d)) >= 1) {
new_node = MallocNew(AllowDeny);
new_node->allow = allow;
new_node->all = all;
if (n == 0) {
new_node->ip = ip_addr;
if (ip_addr.family == IPADDR_INET6)
new_node->subnet_bits = 128;
else
new_node->subnet_bits = 32;
} else {
new_node->ip.family = IPADDR_INET4;
a &= 0xff;
b &= 0xff;
c &= 0xff;
d &= 0xff;
switch (n) {
case 1:
new_node->ip.addr.in4 = (a<<24);
new_node->subnet_bits = 8;
break;
case 2:
new_node->ip.addr.in4 = (a<<24) | (b<<16);
new_node->subnet_bits = 16;
break;
case 3:
new_node->ip.addr.in4 = (a<<24) | (b<<16) | (c<<8);
new_node->subnet_bits = 24;
break;
case 4:
new_node->ip.addr.in4 = (a<<24) | (b<<16) | (c<<8) | d;
new_node->subnet_bits = 32;
break;
default:
assert(0);
}
}
if (slashpos) {
int specified_subnet_bits, n;
n = sscanf(slashpos+1, "%d", &specified_subnet_bits);
if (n == 1) {
new_node->subnet_bits = specified_subnet_bits;
} else {
command_parse_error();
}
}
} else {
if (DNS_Name2IPAddress(p, &ip_addr) == DNS_Success) {
new_node = MallocNew(AllowDeny);
new_node->allow = allow;
new_node->all = all;
new_node->ip = ip_addr;
if (ip_addr.family == IPADDR_INET6)
new_node->subnet_bits = 128;
else
new_node->subnet_bits = 32;
} else {
command_parse_error();
}
}
}
if (new_node) {
new_node->prev = list->prev;
new_node->next = list;
list->prev->next = new_node;
list->prev = new_node;
}
}
/* ================================================== */
static void
parse_allow(char *line)
{
parse_allow_deny(line, &ntp_auth_list, 1);
}
/* ================================================== */
static void
parse_deny(char *line)
{
parse_allow_deny(line, &ntp_auth_list, 0);
}
/* ================================================== */
static void
parse_cmdallow(char *line)
{
parse_allow_deny(line, &cmd_auth_list, 1);
}
/* ================================================== */
static void
parse_cmddeny(char *line)
{
parse_allow_deny(line, &cmd_auth_list, 0);
}
/* ================================================== */
static void
parse_bindacqaddress(char *line)
{
IPAddr ip;
check_number_of_args(line, 1);
if (UTI_StringToIP(line, &ip)) {
if (ip.family == IPADDR_INET4)
bind_acq_address4 = ip;
else if (ip.family == IPADDR_INET6)
bind_acq_address6 = ip;
} else {
command_parse_error();
}
}
/* ================================================== */
static void
parse_bindaddress(char *line)
{
IPAddr ip;
check_number_of_args(line, 1);
if (UTI_StringToIP(line, &ip)) {
if (ip.family == IPADDR_INET4)
bind_address4 = ip;
else if (ip.family == IPADDR_INET6)
bind_address6 = ip;
} else {
command_parse_error();
}
}
/* ================================================== */
static void
parse_bindcmdaddress(char *line)
{
IPAddr ip;
check_number_of_args(line, 1);
if (UTI_StringToIP(line, &ip)) {
if (ip.family == IPADDR_INET4)
bind_cmd_address4 = ip;
else if (ip.family == IPADDR_INET6)
bind_cmd_address6 = ip;
} else {
command_parse_error();
}
}
/* ================================================== */
static void
parse_broadcast(char *line)
{
/* Syntax : broadcast <interval> <broadcast-IP-addr> [<port>] */
int port;
int interval;
char *p;
IPAddr ip;
p = line;
line = CPS_SplitWord(line);
if (sscanf(p, "%d", &interval) != 1) {
command_parse_error();
return;
}
p = line;
line = CPS_SplitWord(line);
if (!UTI_StringToIP(p, &ip)) {
command_parse_error();
return;
}
p = line;
line = CPS_SplitWord(line);
if (*p) {
if (sscanf(p, "%d", &port) != 1 || *line) {
command_parse_error();
return;
}
} else {
/* default port */
port = 123;
}
if (max_broadcasts == n_broadcasts) {
/* Expand array */
max_broadcasts += 8;
if (broadcasts) {
broadcasts = ReallocArray(NTP_Broadcast_Destination, max_broadcasts, broadcasts);
} else {
broadcasts = MallocArray(NTP_Broadcast_Destination, max_broadcasts);
}
}
broadcasts[n_broadcasts].addr = ip;
broadcasts[n_broadcasts].port = port;
broadcasts[n_broadcasts].interval = interval;
++n_broadcasts;
}
/* ================================================== */
static void
parse_tempcomp(char *line)
{
char *p;
check_number_of_args(line, 6);
p = line;
line = CPS_SplitWord(line);
if (!*p) {
command_parse_error();
return;
}
if (sscanf(line, "%lf %lf %lf %lf %lf", &tempcomp_interval, &tempcomp_T0, &tempcomp_k0, &tempcomp_k1, &tempcomp_k2) != 5) {
command_parse_error();
return;
}
tempcomp_file = strdup(p);
}
/* ================================================== */
static void
parse_include(char *line)
{
check_number_of_args(line, 1);
CNF_ReadFile(line);
}
/* ================================================== */
void
CNF_AddInitSources(void)
{
CPS_NTP_Source cps_source;
NTP_Remote_Address ntp_addr;
char dummy_hostname[2] = "H";
int i;
for (i = 0; i < n_init_srcs; i++) {
/* Get the default NTP params */
CPS_ParseNTPSourceAdd(dummy_hostname, &cps_source);
/* Add the address as an offline iburst server */
ntp_addr.ip_addr = init_srcs_ip[i];
ntp_addr.port = cps_source.port;
cps_source.params.iburst = 1;
cps_source.params.online = 0;
NSR_AddSource(&ntp_addr, NTP_SERVER, &cps_source.params);
}
}
/* ================================================== */
void
CNF_AddSources(void) {
int i;
for (i=0; i<n_ntp_sources; i++) {
NSR_AddUnresolvedSource(ntp_sources[i].params.name, ntp_sources[i].params.port,
ntp_sources[i].type, &ntp_sources[i].params.params);
}
}
/* ================================================== */
void
CNF_AddRefclocks(void) {
int i;
for (i=0; i<n_refclock_sources; i++) {
RCL_AddRefclock(&refclock_sources[i]);
}
}
/* ================================================== */
void
CNF_AddBroadcasts(void)
{
int i;
for (i=0; i<n_broadcasts; i++) {
BRD_AddDestination(&broadcasts[i].addr,
broadcasts[i].port,
broadcasts[i].interval);
}
}
/* ================================================== */
int
CNF_GetNTPPort(void)
{
return ntp_port;
}
/* ================================================== */
int
CNF_GetAcquisitionPort(void)
{
return acquisition_port;
}
/* ================================================== */
char *
CNF_GetDriftFile(void)
{
return drift_file;
}
/* ================================================== */
int
CNF_GetLogBanner(void)
{
return log_banner;
}
/* ================================================== */
char *
CNF_GetLogDir(void)
{
return logdir;
}
/* ================================================== */
char *
CNF_GetDumpDir(void)
{
return dumpdir;
}
/* ================================================== */
int
CNF_GetLogMeasurements(void)
{
return do_log_measurements;
}
/* ================================================== */
int
CNF_GetLogStatistics(void)
{
return do_log_statistics;
}
/* ================================================== */
int
CNF_GetLogTracking(void)
{
return do_log_tracking;
}
/* ================================================== */
int
CNF_GetLogRtc(void)
{
return do_log_rtc;
}
/* ================================================== */
int
CNF_GetLogRefclocks(void)
{
return do_log_refclocks;
}
/* ================================================== */
int
CNF_GetLogTempComp(void)
{
return do_log_tempcomp;
}
/* ================================================== */
char *
CNF_GetKeysFile(void)
{
return keys_file;
}
/* ================================================== */
double
CNF_GetRtcAutotrim(void)
{
return rtc_autotrim_threshold;
}
/* ================================================== */
char *
CNF_GetRtcFile(void)
{
return rtc_file;
}
/* ================================================== */
char *
CNF_GetRtcDevice(void)
{
return rtc_device;
}
/* ================================================== */
unsigned long
CNF_GetCommandKey(void)
{
return command_key_id;
}
/* ================================================== */
int
CNF_GetGenerateCommandKey(void)
{
return generate_command_key;
}
/* ================================================== */
int
CNF_GetDumpOnExit(void)
{
return do_dump_on_exit;
}
/* ================================================== */
double
CNF_GetMaxUpdateSkew(void)
{
return max_update_skew;
}
/* ================================================== */
double
CNF_GetMaxClockError(void)
{
return max_clock_error;
}
/* ================================================== */
double
CNF_GetCorrectionTimeRatio(void)
{
return correction_time_ratio;
}
/* ================================================== */
double
CNF_GetMaxSlewRate(void)
{
return max_slew_rate;
}
/* ================================================== */
double
CNF_GetReselectDistance(void)
{
return reselect_distance;
}
/* ================================================== */
double
CNF_GetStratumWeight(void)
{
return stratum_weight;
}
/* ================================================== */
double
CNF_GetCombineLimit(void)
{
return combine_limit;
}
/* ================================================== */
int
CNF_GetManualEnabled(void)
{
return enable_manual;
}
/* ================================================== */
int
CNF_GetCommandPort(void) {
return cmd_port;
}
/* ================================================== */
int
CNF_AllowLocalReference(int *stratum)
{
if (enable_local) {
*stratum = local_stratum;
return 1;
} else {
return 0;
}
}
/* ================================================== */
int
CNF_GetRtcOnUtc(void)
{
return rtc_on_utc;
}
/* ================================================== */
int
CNF_GetRtcSync(void)
{
return rtc_sync;
}
/* ================================================== */
void
CNF_GetMakeStep(int *limit, double *threshold)
{
*limit = make_step_limit;
*threshold = make_step_threshold;
}
/* ================================================== */
void
CNF_GetMaxChange(int *delay, int *ignore, double *offset)
{
*delay = max_offset_delay;
*ignore = max_offset_ignore;
*offset = max_offset;
}
/* ================================================== */
void
CNF_GetLogChange(int *enabled, double *threshold)
{
*enabled = do_log_change;
*threshold = log_change_threshold;
}
/* ================================================== */
void
CNF_GetMailOnChange(int *enabled, double *threshold, char **user)
{
if (mail_user_on_change) {
*enabled = 1;
*threshold = mail_change_threshold;
*user = mail_user_on_change;
} else {
*enabled = 0;
*threshold = 0.0;
*user = NULL;
}
}
/* ================================================== */
void
CNF_SetupAccessRestrictions(void)
{
AllowDeny *node;
int status;
for (node = ntp_auth_list.next; node != &ntp_auth_list; node = node->next) {
status = NCR_AddAccessRestriction(&node->ip, node->subnet_bits, node->allow, node->all);
if (!status) {
LOG_FATAL(LOGF_Configure, "Bad subnet in %s/%d", UTI_IPToString(&node->ip), node->subnet_bits);
}
}
for (node = cmd_auth_list.next; node != &cmd_auth_list; node = node->next) {
status = CAM_AddAccessRestriction(&node->ip, node->subnet_bits, node->allow, node->all);
if (!status) {
LOG_FATAL(LOGF_Configure, "Bad subnet in %s/%d", UTI_IPToString(&node->ip), node->subnet_bits);
}
}
}
/* ================================================== */
int
CNF_GetNoClientLog(void)
{
return no_client_log;
}
/* ================================================== */
unsigned long
CNF_GetClientLogLimit(void)
{
return client_log_limit;
}
/* ================================================== */
void
CNF_GetFallbackDrifts(int *min, int *max)
{
*min = fb_drift_min;
*max = fb_drift_max;
}
/* ================================================== */
void
CNF_GetBindAddress(int family, IPAddr *addr)
{
if (family == IPADDR_INET4)
*addr = bind_address4;
else if (family == IPADDR_INET6)
*addr = bind_address6;
else
addr->family = IPADDR_UNSPEC;
}
/* ================================================== */
void
CNF_GetBindAcquisitionAddress(int family, IPAddr *addr)
{
if (family == IPADDR_INET4)
*addr = bind_acq_address4;
else if (family == IPADDR_INET6)
*addr = bind_acq_address6;
else
addr->family = IPADDR_UNSPEC;
}
/* ================================================== */
void
CNF_GetBindCommandAddress(int family, IPAddr *addr)
{
if (family == IPADDR_INET4)
*addr = bind_cmd_address4.family != IPADDR_UNSPEC ? bind_cmd_address4 : bind_address4;
else if (family == IPADDR_INET6)
*addr = bind_cmd_address6.family != IPADDR_UNSPEC ? bind_cmd_address6 : bind_address6;
else
addr->family = IPADDR_UNSPEC;
}
/* ================================================== */
char *
CNF_GetPidFile(void)
{
return pidfile;
}
/* ================================================== */
char *
CNF_GetLeapSecTimezone(void)
{
return leapsec_tz;
}
/* ================================================== */
int
CNF_GetSchedPriority(void)
{
return sched_priority;
}
/* ================================================== */
int
CNF_GetLockMemory(void)
{
return lock_memory;
}
/* ================================================== */
void
CNF_GetTempComp(char **file, double *interval, double *T0, double *k0, double *k1, double *k2)
{
*file = tempcomp_file;
*interval = tempcomp_interval;
*T0 = tempcomp_T0;
*k0 = tempcomp_k0;
*k1 = tempcomp_k1;
*k2 = tempcomp_k2;
}
/* ================================================== */
char *
CNF_GetUser(void)
{
return user;
}
/* ================================================== */
int
CNF_GetMaxSamples(void)
{
return max_samples;
}
/* ================================================== */
int
CNF_GetMinSamples(void)
{
return min_samples;
}
/* ================================================== */
char *
CNF_GetHwclockFile(void)
{
return hwclock_file;
}
/* ================================================== */
int
CNF_GetInitSources(void)
{
return n_init_srcs;
}
/* ================================================== */
double
CNF_GetInitStepThreshold(void)
{
return init_slew_threshold;
}
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