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cmdmon.c
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/*
chronyd/chronyc - Programs for keeping computer clocks accurate.
**********************************************************************
* Copyright (C) Richard P. Curnow 1997-2003
* Copyright (C) Miroslav Lichvar 2009-2016, 2018-2024
*
* 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.
*
**********************************************************************
=======================================================================
Command and monitoring module in the main program
*/
#include "config.h"
#include "sysincl.h"
#include "cmdmon.h"
#include "candm.h"
#include "sched.h"
#include "util.h"
#include "logging.h"
#include "keys.h"
#include "ntp_sources.h"
#include "ntp_core.h"
#include "smooth.h"
#include "socket.h"
#include "sources.h"
#include "sourcestats.h"
#include "reference.h"
#include "manual.h"
#include "memory.h"
#include "nts_ke_server.h"
#include "local.h"
#include "addrfilt.h"
#include "conf.h"
#include "rtc.h"
#include "pktlength.h"
#include "clientlog.h"
#include "refclock.h"
/* ================================================== */
#define INVALID_SOCK_FD (-5)
/* File descriptors for command and monitoring sockets */
static int sock_fdu;
static int sock_fd4;
static int sock_fd6;
/* Flag indicating the IPv4 socket is bound to an address */
static int bound_sock_fd4;
/* Flag indicating whether this module has been initialised or not */
static int initialised = 0;
/* ================================================== */
/* This authorisation table is used for checking whether particular
machines are allowed to make command and monitoring requests. */
static ADF_AuthTable access_auth_table;
/* ================================================== */
/* Forward prototypes */
static void read_from_cmd_socket(int sock_fd, int event, void *anything);
/* ================================================== */
static int
open_socket(int family)
{
const char *local_path, *iface;
IPSockAddr local_addr;
int sock_fd, port;
switch (family) {
case IPADDR_INET4:
case IPADDR_INET6:
port = CNF_GetCommandPort();
if (port == 0 || !SCK_IsIpFamilyEnabled(family))
return INVALID_SOCK_FD;
CNF_GetBindCommandAddress(family, &local_addr.ip_addr);
local_addr.port = port;
iface = CNF_GetBindCommandInterface();
sock_fd = SCK_OpenUdpSocket(NULL, &local_addr, iface, SCK_FLAG_RX_DEST_ADDR);
if (sock_fd < 0) {
LOG(LOGS_ERR, "Could not open command socket on %s",
UTI_IPSockAddrToString(&local_addr));
return INVALID_SOCK_FD;
}
if (family == IPADDR_INET4)
bound_sock_fd4 = local_addr.ip_addr.addr.in4 != INADDR_ANY;
break;
case IPADDR_UNSPEC:
local_path = CNF_GetBindCommandPath();
sock_fd = SCK_OpenUnixDatagramSocket(NULL, local_path, 0);
if (sock_fd < 0) {
LOG(LOGS_ERR, "Could not open command socket on %s", local_path);
return INVALID_SOCK_FD;
}
break;
default:
assert(0);
}
/* Register handler for read events on the socket */
SCH_AddFileHandler(sock_fd, SCH_FILE_INPUT, read_from_cmd_socket, NULL);
return sock_fd;
}
/* ================================================== */
static void
do_size_checks(void)
{
int i, request_length, padding_length, reply_length;
CMD_Request request;
CMD_Reply reply;
assert(offsetof(CMD_Request, data) == 20);
assert(offsetof(CMD_Reply, data) == 28);
for (i = 0; i < N_REQUEST_TYPES; i++) {
request.version = PROTO_VERSION_NUMBER;
request.command = htons(i);
request_length = PKL_CommandLength(&request);
padding_length = PKL_CommandPaddingLength(&request);
BRIEF_ASSERT(padding_length <= MAX_PADDING_LENGTH && padding_length <= request_length &&
request_length <= sizeof (CMD_Request) &&
(request_length == 0 || request_length >= offsetof(CMD_Request, data)));
}
for (i = 1; i < N_REPLY_TYPES; i++) {
reply.reply = htons(i);
reply.status = STT_SUCCESS;
reply_length = PKL_ReplyLength(&reply);
BRIEF_ASSERT((reply_length == 0 || reply_length >= offsetof(CMD_Reply, data)) &&
reply_length <= sizeof (CMD_Reply));
}
}
/* ================================================== */
void
CAM_Initialise(void)
{
assert(!initialised);
do_size_checks();
initialised = 1;
bound_sock_fd4 = 0;
sock_fdu = INVALID_SOCK_FD;
sock_fd4 = open_socket(IPADDR_INET4);
sock_fd6 = open_socket(IPADDR_INET6);
access_auth_table = ADF_CreateTable();
}
/* ================================================== */
void
CAM_Finalise(void)
{
if (sock_fdu != INVALID_SOCK_FD) {
SCH_RemoveFileHandler(sock_fdu);
SCK_RemoveSocket(sock_fdu);
SCK_CloseSocket(sock_fdu);
sock_fdu = INVALID_SOCK_FD;
}
if (sock_fd4 != INVALID_SOCK_FD) {
SCH_RemoveFileHandler(sock_fd4);
SCK_CloseSocket(sock_fd4);
sock_fd4 = INVALID_SOCK_FD;
}
if (sock_fd6 != INVALID_SOCK_FD) {
SCH_RemoveFileHandler(sock_fd6);
SCK_CloseSocket(sock_fd6);
sock_fd6 = INVALID_SOCK_FD;
}
ADF_DestroyTable(access_auth_table);
initialised = 0;
}
/* ================================================== */
void
CAM_OpenUnixSocket(void)
{
/* This is separated from CAM_Initialise() as it needs to be called when
the process has already dropped the root privileges */
if (CNF_GetBindCommandPath())
sock_fdu = open_socket(IPADDR_UNSPEC);
}
/* ================================================== */
static void
transmit_reply(int sock_fd, int request_length, SCK_Message *message)
{
message->length = PKL_ReplyLength((CMD_Reply *)message->data);
if (request_length < message->length) {
DEBUG_LOG("Response longer than request req_len=%d res_len=%d",
request_length, message->length);
return;
}
/* Don't require responses to non-link-local addresses to use the same
interface */
if (message->addr_type == SCK_ADDR_IP &&
!SCK_IsLinkLocalIPAddress(&message->remote_addr.ip.ip_addr))
message->if_index = INVALID_IF_INDEX;
#if !defined(HAVE_IN_PKTINFO) && defined(IP_SENDSRCADDR)
/* On FreeBSD a local IPv4 address cannot be specified on bound socket */
if (message->addr_type == SCK_ADDR_IP && message->local_addr.ip.family == IPADDR_INET4 &&
(sock_fd != sock_fd4 || bound_sock_fd4))
message->local_addr.ip.family = IPADDR_UNSPEC;
#endif
if (!SCK_SendMessage(sock_fd, message, 0))
return;
}
/* ================================================== */
static void
handle_dump(CMD_Request *rx_message, CMD_Reply *tx_message)
{
SRC_DumpSources();
NSR_DumpAuthData();
NKS_DumpKeys();
}
/* ================================================== */
static void
handle_online(CMD_Request *rx_message, CMD_Reply *tx_message)
{
IPAddr address, mask;
UTI_IPNetworkToHost(&rx_message->data.online.mask, &mask);
UTI_IPNetworkToHost(&rx_message->data.online.address, &address);
if (!NSR_SetConnectivity(&mask, &address, SRC_ONLINE))
tx_message->status = htons(STT_NOSUCHSOURCE);
}
/* ================================================== */
static void
handle_offline(CMD_Request *rx_message, CMD_Reply *tx_message)
{
IPAddr address, mask;
UTI_IPNetworkToHost(&rx_message->data.offline.mask, &mask);
UTI_IPNetworkToHost(&rx_message->data.offline.address, &address);
if (!NSR_SetConnectivity(&mask, &address, SRC_OFFLINE))
tx_message->status = htons(STT_NOSUCHSOURCE);
}
/* ================================================== */
static void
handle_onoffline(CMD_Request *rx_message, CMD_Reply *tx_message)
{
IPAddr address, mask;
address.family = mask.family = IPADDR_UNSPEC;
if (!NSR_SetConnectivity(&mask, &address, SRC_MAYBE_ONLINE))
;
}
/* ================================================== */
static void
handle_burst(CMD_Request *rx_message, CMD_Reply *tx_message)
{
IPAddr address, mask;
UTI_IPNetworkToHost(&rx_message->data.burst.mask, &mask);
UTI_IPNetworkToHost(&rx_message->data.burst.address, &address);
if (!NSR_InitiateSampleBurst(ntohl(rx_message->data.burst.n_good_samples),
ntohl(rx_message->data.burst.n_total_samples),
&mask, &address))
tx_message->status = htons(STT_NOSUCHSOURCE);
}
/* ================================================== */
static void
handle_modify_minpoll(CMD_Request *rx_message, CMD_Reply *tx_message)
{
IPAddr address;
UTI_IPNetworkToHost(&rx_message->data.modify_minpoll.address, &address);
if (!NSR_ModifyMinpoll(&address,
ntohl(rx_message->data.modify_minpoll.new_minpoll)))
tx_message->status = htons(STT_NOSUCHSOURCE);
}
/* ================================================== */
static void
handle_modify_maxpoll(CMD_Request *rx_message, CMD_Reply *tx_message)
{
IPAddr address;
UTI_IPNetworkToHost(&rx_message->data.modify_minpoll.address, &address);
if (!NSR_ModifyMaxpoll(&address,
ntohl(rx_message->data.modify_minpoll.new_minpoll)))
tx_message->status = htons(STT_NOSUCHSOURCE);
}
/* ================================================== */
static void
handle_modify_maxdelay(CMD_Request *rx_message, CMD_Reply *tx_message)
{
IPAddr address;
UTI_IPNetworkToHost(&rx_message->data.modify_maxdelay.address, &address);
if (!NSR_ModifyMaxdelay(&address,
UTI_FloatNetworkToHost(rx_message->data.modify_maxdelay.new_max_delay)))
tx_message->status = htons(STT_NOSUCHSOURCE);
}
/* ================================================== */
static void
handle_modify_maxdelayratio(CMD_Request *rx_message, CMD_Reply *tx_message)
{
IPAddr address;
UTI_IPNetworkToHost(&rx_message->data.modify_maxdelayratio.address, &address);
if (!NSR_ModifyMaxdelayratio(&address,
UTI_FloatNetworkToHost(rx_message->data.modify_maxdelayratio.new_max_delay_ratio)))
tx_message->status = htons(STT_NOSUCHSOURCE);
}
/* ================================================== */
static void
handle_modify_maxdelaydevratio(CMD_Request *rx_message, CMD_Reply *tx_message)
{
IPAddr address;
UTI_IPNetworkToHost(&rx_message->data.modify_maxdelaydevratio.address, &address);
if (!NSR_ModifyMaxdelaydevratio(&address,
UTI_FloatNetworkToHost(rx_message->data.modify_maxdelaydevratio.new_max_delay_dev_ratio)))
tx_message->status = htons(STT_NOSUCHSOURCE);
}
/* ================================================== */
static void
handle_modify_minstratum(CMD_Request *rx_message, CMD_Reply *tx_message)
{
IPAddr address;
UTI_IPNetworkToHost(&rx_message->data.modify_minpoll.address, &address);
if (!NSR_ModifyMinstratum(&address,
ntohl(rx_message->data.modify_minstratum.new_min_stratum)))
tx_message->status = htons(STT_NOSUCHSOURCE);
}
/* ================================================== */
static void
handle_modify_polltarget(CMD_Request *rx_message, CMD_Reply *tx_message)
{
IPAddr address;
UTI_IPNetworkToHost(&rx_message->data.modify_polltarget.address, &address);
if (!NSR_ModifyPolltarget(&address,
ntohl(rx_message->data.modify_polltarget.new_poll_target)))
tx_message->status = htons(STT_NOSUCHSOURCE);
}
/* ================================================== */
static void
handle_modify_maxupdateskew(CMD_Request *rx_message, CMD_Reply *tx_message)
{
REF_ModifyMaxupdateskew(UTI_FloatNetworkToHost(rx_message->data.modify_maxupdateskew.new_max_update_skew));
}
/* ================================================== */
static void
handle_modify_makestep(CMD_Request *rx_message, CMD_Reply *tx_message)
{
REF_ModifyMakestep(ntohl(rx_message->data.modify_makestep.limit),
UTI_FloatNetworkToHost(rx_message->data.modify_makestep.threshold));
}
/* ================================================== */
static void
handle_settime(CMD_Request *rx_message, CMD_Reply *tx_message)
{
struct timespec ts;
double offset, dfreq_ppm, new_afreq_ppm;
UTI_TimespecNetworkToHost(&rx_message->data.settime.ts, &ts);
if (!MNL_IsEnabled()) {
tx_message->status = htons(STT_NOTENABLED);
} else if (MNL_AcceptTimestamp(&ts, &offset, &dfreq_ppm, &new_afreq_ppm)) {
tx_message->reply = htons(RPY_MANUAL_TIMESTAMP2);
tx_message->data.manual_timestamp.offset = UTI_FloatHostToNetwork(offset);
tx_message->data.manual_timestamp.dfreq_ppm = UTI_FloatHostToNetwork(dfreq_ppm);
tx_message->data.manual_timestamp.new_afreq_ppm = UTI_FloatHostToNetwork(new_afreq_ppm);
} else {
tx_message->status = htons(STT_FAILED);
}
}
/* ================================================== */
static void
handle_local(CMD_Request *rx_message, CMD_Reply *tx_message)
{
if (ntohl(rx_message->data.local.on_off)) {
REF_EnableLocal(ntohl(rx_message->data.local.stratum),
UTI_FloatNetworkToHost(rx_message->data.local.distance),
ntohl(rx_message->data.local.orphan),
UTI_FloatNetworkToHost(rx_message->data.local.activate),
UTI_FloatNetworkToHost(rx_message->data.local.wait_synced),
UTI_FloatNetworkToHost(rx_message->data.local.wait_unsynced));
} else {
REF_DisableLocal();
}
}
/* ================================================== */
static void
handle_manual(CMD_Request *rx_message, CMD_Reply *tx_message)
{
int option;
option = ntohl(rx_message->data.manual.option);
switch (option) {
case 0:
MNL_Disable();
break;
case 1:
MNL_Enable();
break;
case 2:
MNL_Reset();
break;
default:
tx_message->status = htons(STT_INVALID);
break;
}
}
/* ================================================== */
static void
handle_n_sources(CMD_Request *rx_message, CMD_Reply *tx_message)
{
int n_sources;
n_sources = SRC_ReadNumberOfSources();
tx_message->reply = htons(RPY_N_SOURCES);
tx_message->data.n_sources.n_sources = htonl(n_sources);
}
/* ================================================== */
static void
handle_source_data(CMD_Request *rx_message, CMD_Reply *tx_message)
{
RPT_SourceReport report;
struct timespec now_corr;
/* Get data */
SCH_GetLastEventTime(&now_corr, NULL, NULL);
if (SRC_ReportSource(ntohl(rx_message->data.source_data.index), &report, &now_corr)) {
switch (SRC_GetType(ntohl(rx_message->data.source_data.index))) {
case SRC_NTP:
NSR_ReportSource(&report, &now_corr);
break;
case SRC_REFCLOCK:
RCL_ReportSource(&report, &now_corr);
break;
}
tx_message->reply = htons(RPY_SOURCE_DATA);
UTI_IPHostToNetwork(&report.ip_addr, &tx_message->data.source_data.ip_addr);
tx_message->data.source_data.stratum = htons(report.stratum);
tx_message->data.source_data.poll = htons(report.poll);
switch (report.state) {
case RPT_NONSELECTABLE:
tx_message->data.source_data.state = htons(RPY_SD_ST_NONSELECTABLE);
break;
case RPT_FALSETICKER:
tx_message->data.source_data.state = htons(RPY_SD_ST_FALSETICKER);
break;
case RPT_JITTERY:
tx_message->data.source_data.state = htons(RPY_SD_ST_JITTERY);
break;
case RPT_SELECTABLE:
tx_message->data.source_data.state = htons(RPY_SD_ST_SELECTABLE);
break;
case RPT_UNSELECTED:
tx_message->data.source_data.state = htons(RPY_SD_ST_UNSELECTED);
break;
case RPT_SELECTED:
tx_message->data.source_data.state = htons(RPY_SD_ST_SELECTED);
break;
}
switch (report.mode) {
case RPT_NTP_CLIENT:
tx_message->data.source_data.mode = htons(RPY_SD_MD_CLIENT);
break;
case RPT_NTP_PEER:
tx_message->data.source_data.mode = htons(RPY_SD_MD_PEER);
break;
case RPT_LOCAL_REFERENCE:
tx_message->data.source_data.mode = htons(RPY_SD_MD_REF);
break;
}
tx_message->data.source_data.flags = htons(0);
tx_message->data.source_data.reachability = htons(report.reachability);
tx_message->data.source_data.since_sample = htonl(report.latest_meas_ago);
tx_message->data.source_data.orig_latest_meas = UTI_FloatHostToNetwork(report.orig_latest_meas);
tx_message->data.source_data.latest_meas = UTI_FloatHostToNetwork(report.latest_meas);
tx_message->data.source_data.latest_meas_err = UTI_FloatHostToNetwork(report.latest_meas_err);
} else {
tx_message->status = htons(STT_NOSUCHSOURCE);
}
}
/* ================================================== */
static void
handle_rekey(CMD_Request *rx_message, CMD_Reply *tx_message)
{
KEY_Reload();
NKS_ReloadKeys();
}
/* ================================================== */
static void
handle_allowdeny(CMD_Request *rx_message, CMD_Reply *tx_message, int allow, int all)
{
IPAddr ip;
int subnet_bits;
UTI_IPNetworkToHost(&rx_message->data.allow_deny.ip, &ip);
subnet_bits = ntohl(rx_message->data.allow_deny.subnet_bits);
if (!NCR_AddAccessRestriction(&ip, subnet_bits, allow, all))
tx_message->status = htons(STT_BADSUBNET);
}
/* ================================================== */
static void
handle_cmdallowdeny(CMD_Request *rx_message, CMD_Reply *tx_message, int allow, int all)
{
IPAddr ip;
int subnet_bits;
UTI_IPNetworkToHost(&rx_message->data.allow_deny.ip, &ip);
subnet_bits = ntohl(rx_message->data.allow_deny.subnet_bits);
if (!CAM_AddAccessRestriction(&ip, subnet_bits, allow, all))
tx_message->status = htons(STT_BADSUBNET);
}
/* ================================================== */
static void
handle_accheck(CMD_Request *rx_message, CMD_Reply *tx_message)
{
IPAddr ip;
UTI_IPNetworkToHost(&rx_message->data.ac_check.ip, &ip);
if (NCR_CheckAccessRestriction(&ip)) {
tx_message->status = htons(STT_ACCESSALLOWED);
} else {
tx_message->status = htons(STT_ACCESSDENIED);
}
}
/* ================================================== */
static void
handle_cmdaccheck(CMD_Request *rx_message, CMD_Reply *tx_message)
{
IPAddr ip;
UTI_IPNetworkToHost(&rx_message->data.ac_check.ip, &ip);
if (CAM_CheckAccessRestriction(&ip)) {
tx_message->status = htons(STT_ACCESSALLOWED);
} else {
tx_message->status = htons(STT_ACCESSDENIED);
}
}
/* ================================================== */
static int
convert_addsrc_select_options(int flags)
{
return (flags & REQ_ADDSRC_PREFER ? SRC_SELECT_PREFER : 0) |
(flags & REQ_ADDSRC_NOSELECT ? SRC_SELECT_NOSELECT : 0) |
(flags & REQ_ADDSRC_TRUST ? SRC_SELECT_TRUST : 0) |
(flags & REQ_ADDSRC_REQUIRE ? SRC_SELECT_REQUIRE : 0);
}
/* ================================================== */
static void
handle_add_source(CMD_Request *rx_message, CMD_Reply *tx_message)
{
NTP_Source_Type type;
SourceParameters params;
int family, pool, port;
NSR_Status status;
uint32_t flags;
char *name;
switch (ntohl(rx_message->data.ntp_source.type)) {
case REQ_ADDSRC_SERVER:
type = NTP_SERVER;
pool = 0;
break;
case REQ_ADDSRC_PEER:
type = NTP_PEER;
pool = 0;
break;
case REQ_ADDSRC_POOL:
type = NTP_SERVER;
pool = 1;
break;
default:
tx_message->status = htons(STT_INVALID);
return;
}
name = (char *)rx_message->data.ntp_source.name;
/* Make sure the name is terminated */
if (name[sizeof (rx_message->data.ntp_source.name) - 1] != '\0') {
tx_message->status = htons(STT_INVALIDNAME);
return;
}
flags = ntohl(rx_message->data.ntp_source.flags);
family = flags & REQ_ADDSRC_IPV4 ? IPADDR_INET4 :
flags & REQ_ADDSRC_IPV6 ? IPADDR_INET6 : IPADDR_UNSPEC;
port = ntohl(rx_message->data.ntp_source.port);
params.minpoll = ntohl(rx_message->data.ntp_source.minpoll);
params.maxpoll = ntohl(rx_message->data.ntp_source.maxpoll);
params.presend_minpoll = ntohl(rx_message->data.ntp_source.presend_minpoll);
params.min_stratum = ntohl(rx_message->data.ntp_source.min_stratum);
params.poll_target = ntohl(rx_message->data.ntp_source.poll_target);
params.version = ntohl(rx_message->data.ntp_source.version);
params.max_sources = ntohl(rx_message->data.ntp_source.max_sources);
params.min_samples = ntohl(rx_message->data.ntp_source.min_samples);
params.max_samples = ntohl(rx_message->data.ntp_source.max_samples);
params.filter_length = ntohl(rx_message->data.ntp_source.filter_length);
params.authkey = ntohl(rx_message->data.ntp_source.authkey);
params.nts_port = ntohl(rx_message->data.ntp_source.nts_port);
params.cert_set = ntohl(rx_message->data.ntp_source.cert_set);
params.max_delay = UTI_FloatNetworkToHost(rx_message->data.ntp_source.max_delay);
params.max_delay_ratio =
UTI_FloatNetworkToHost(rx_message->data.ntp_source.max_delay_ratio);
params.max_delay_dev_ratio =
UTI_FloatNetworkToHost(rx_message->data.ntp_source.max_delay_dev_ratio);
params.max_delay_quant =
UTI_FloatNetworkToHost(rx_message->data.ntp_source.max_delay_quant);
params.min_delay = UTI_FloatNetworkToHost(rx_message->data.ntp_source.min_delay);
params.asymmetry = UTI_FloatNetworkToHost(rx_message->data.ntp_source.asymmetry);
params.offset = UTI_FloatNetworkToHost(rx_message->data.ntp_source.offset);
params.connectivity = flags & REQ_ADDSRC_ONLINE ? SRC_ONLINE : SRC_OFFLINE;
params.auto_offline = !!(flags & REQ_ADDSRC_AUTOOFFLINE);
params.iburst = !!(flags & REQ_ADDSRC_IBURST);
params.interleaved = !!(flags & REQ_ADDSRC_INTERLEAVED);
params.burst = !!(flags & REQ_ADDSRC_BURST);
params.nts = !!(flags & REQ_ADDSRC_NTS);
params.copy = !!(flags & REQ_ADDSRC_COPY);
params.ext_fields = (flags & REQ_ADDSRC_EF_EXP_MONO_ROOT ? NTP_EF_FLAG_EXP_MONO_ROOT : 0) |
(flags & REQ_ADDSRC_EF_EXP_NET_CORRECTION ?
NTP_EF_FLAG_EXP_NET_CORRECTION : 0);
params.sel_options = convert_addsrc_select_options(ntohl(rx_message->data.ntp_source.flags));
status = NSR_AddSourceByName(name, family, port, pool, type, ¶ms, NULL);
switch (status) {
case NSR_Success:
break;
case NSR_UnresolvedName:
/* Try to resolve the name now */
NSR_ResolveSources();
break;
case NSR_AlreadyInUse:
tx_message->status = htons(STT_SOURCEALREADYKNOWN);
break;
case NSR_TooManySources:
tx_message->status = htons(STT_TOOMANYSOURCES);
break;
case NSR_InvalidName:
tx_message->status = htons(STT_INVALIDNAME);
break;
case NSR_InvalidAF:
tx_message->status = htons(STT_INVALIDAF);
break;
case NSR_NoSuchSource:
assert(0);
break;
}
}
/* ================================================== */
static void
handle_del_source(CMD_Request *rx_message, CMD_Reply *tx_message)
{
NSR_Status status;
IPAddr ip_addr;
UTI_IPNetworkToHost(&rx_message->data.del_source.ip_addr, &ip_addr);
status = NSR_RemoveSource(&ip_addr);
switch (status) {
case NSR_Success:
break;
case NSR_NoSuchSource:
tx_message->status = htons(STT_NOSUCHSOURCE);
break;
case NSR_TooManySources:
case NSR_AlreadyInUse:
case NSR_InvalidAF:
case NSR_InvalidName:
case NSR_UnresolvedName:
assert(0);
break;
}
}
/* ================================================== */
static void
handle_writertc(CMD_Request *rx_message, CMD_Reply *tx_message)
{
switch (RTC_WriteParameters()) {
case RTC_ST_OK:
break;
case RTC_ST_NODRV:
tx_message->status = htons(STT_NORTC);
break;
case RTC_ST_BADFILE:
tx_message->status = htons(STT_BADRTCFILE);
break;
}
}
/* ================================================== */
static void
handle_dfreq(CMD_Request *rx_message, CMD_Reply *tx_message)
{
double dfreq;
dfreq = UTI_FloatNetworkToHost(rx_message->data.dfreq.dfreq);
LCL_AccumulateDeltaFrequency(dfreq * 1.0e-6);
LOG(LOGS_INFO, "Accumulated delta freq of %.3fppm", dfreq);
}
/* ================================================== */
static void
handle_doffset(CMD_Request *rx_message, CMD_Reply *tx_message)
{
double doffset;
doffset = UTI_FloatNetworkToHost(rx_message->data.doffset.doffset);
if (!LCL_AccumulateOffset(doffset, 0.0)) {
tx_message->status = htons(STT_FAILED);
} else {
LOG(LOGS_INFO, "Accumulated delta offset of %.6f seconds", doffset);
}
}
/* ================================================== */
static void
handle_tracking(CMD_Request *rx_message, CMD_Reply *tx_message)
{
RPT_TrackingReport rpt;
REF_GetTrackingReport(&rpt);
tx_message->reply = htons(RPY_TRACKING);
tx_message->data.tracking.ref_id = htonl(rpt.ref_id);
UTI_IPHostToNetwork(&rpt.ip_addr, &tx_message->data.tracking.ip_addr);
tx_message->data.tracking.stratum = htons(rpt.stratum);
tx_message->data.tracking.leap_status = htons(rpt.leap_status);
UTI_TimespecHostToNetwork(&rpt.ref_time, &tx_message->data.tracking.ref_time);
tx_message->data.tracking.current_correction = UTI_FloatHostToNetwork(rpt.current_correction);
tx_message->data.tracking.last_offset = UTI_FloatHostToNetwork(rpt.last_offset);
tx_message->data.tracking.rms_offset = UTI_FloatHostToNetwork(rpt.rms_offset);
tx_message->data.tracking.freq_ppm = UTI_FloatHostToNetwork(rpt.freq_ppm);
tx_message->data.tracking.resid_freq_ppm = UTI_FloatHostToNetwork(rpt.resid_freq_ppm);
tx_message->data.tracking.skew_ppm = UTI_FloatHostToNetwork(rpt.skew_ppm);
tx_message->data.tracking.root_delay = UTI_FloatHostToNetwork(rpt.root_delay);
tx_message->data.tracking.root_dispersion = UTI_FloatHostToNetwork(rpt.root_dispersion);
tx_message->data.tracking.last_update_interval = UTI_FloatHostToNetwork(rpt.last_update_interval);
}
/* ================================================== */
static void
handle_smoothing(CMD_Request *rx_message, CMD_Reply *tx_message)
{
RPT_SmoothingReport report;
struct timespec now;
SCH_GetLastEventTime(&now, NULL, NULL);
if (!SMT_GetSmoothingReport(&report, &now)) {
tx_message->status = htons(STT_NOTENABLED);
return;
}
tx_message->reply = htons(RPY_SMOOTHING);
tx_message->data.smoothing.flags = htonl((report.active ? RPY_SMT_FLAG_ACTIVE : 0) |
(report.leap_only ? RPY_SMT_FLAG_LEAPONLY : 0));
tx_message->data.smoothing.offset = UTI_FloatHostToNetwork(report.offset);
tx_message->data.smoothing.freq_ppm = UTI_FloatHostToNetwork(report.freq_ppm);
tx_message->data.smoothing.wander_ppm = UTI_FloatHostToNetwork(report.wander_ppm);
tx_message->data.smoothing.last_update_ago = UTI_FloatHostToNetwork(report.last_update_ago);
tx_message->data.smoothing.remaining_time = UTI_FloatHostToNetwork(report.remaining_time);
}
/* ================================================== */
static void
handle_smoothtime(CMD_Request *rx_message, CMD_Reply *tx_message)
{
struct timespec now;
int option;
if (!SMT_IsEnabled()) {
tx_message->status = htons(STT_NOTENABLED);
return;
}
option = ntohl(rx_message->data.smoothtime.option);
SCH_GetLastEventTime(&now, NULL, NULL);
switch (option) {
case REQ_SMOOTHTIME_RESET:
SMT_Reset(&now);
break;
case REQ_SMOOTHTIME_ACTIVATE:
SMT_Activate(&now);
break;
default:
tx_message->status = htons(STT_INVALID);
break;
}
}
/* ================================================== */
static void
handle_sourcestats(CMD_Request *rx_message, CMD_Reply *tx_message)
{
int status;
RPT_SourcestatsReport report;
struct timespec now_corr;
SCH_GetLastEventTime(&now_corr, NULL, NULL);
status = SRC_ReportSourcestats(ntohl(rx_message->data.sourcestats.index),
&report, &now_corr);
if (status) {
tx_message->reply = htons(RPY_SOURCESTATS);
tx_message->data.sourcestats.ref_id = htonl(report.ref_id);
UTI_IPHostToNetwork(&report.ip_addr, &tx_message->data.sourcestats.ip_addr);
tx_message->data.sourcestats.n_samples = htonl(report.n_samples);
tx_message->data.sourcestats.n_runs = htonl(report.n_runs);
tx_message->data.sourcestats.span_seconds = htonl(report.span_seconds);
tx_message->data.sourcestats.resid_freq_ppm = UTI_FloatHostToNetwork(report.resid_freq_ppm);
tx_message->data.sourcestats.skew_ppm = UTI_FloatHostToNetwork(report.skew_ppm);
tx_message->data.sourcestats.sd = UTI_FloatHostToNetwork(report.sd);
tx_message->data.sourcestats.est_offset = UTI_FloatHostToNetwork(report.est_offset);
tx_message->data.sourcestats.est_offset_err = UTI_FloatHostToNetwork(report.est_offset_err);
} else {
tx_message->status = htons(STT_NOSUCHSOURCE);
}
}
/* ================================================== */
static void
handle_rtcreport(CMD_Request *rx_message, CMD_Reply *tx_message)
{
int status;
RPT_RTC_Report report;
status = RTC_GetReport(&report);
if (status) {
tx_message->reply = htons(RPY_RTC);
UTI_TimespecHostToNetwork(&report.ref_time, &tx_message->data.rtc.ref_time);
tx_message->data.rtc.n_samples = htons(report.n_samples);
tx_message->data.rtc.n_runs = htons(report.n_runs);
tx_message->data.rtc.span_seconds = htonl(report.span_seconds);
tx_message->data.rtc.rtc_seconds_fast = UTI_FloatHostToNetwork(report.rtc_seconds_fast);
tx_message->data.rtc.rtc_gain_rate_ppm = UTI_FloatHostToNetwork(report.rtc_gain_rate_ppm);
} else {
tx_message->status = htons(STT_NORTC);
}
}
/* ================================================== */
static void
handle_trimrtc(CMD_Request *rx_message, CMD_Reply *tx_message)
{
if (!RTC_Trim())
tx_message->status = htons(STT_NORTC);
}
/* ================================================== */
static void
handle_cyclelogs(CMD_Request *rx_message, CMD_Reply *tx_message)
{
LOG_CycleLogFiles();
}
/* ================================================== */
static void
handle_client_accesses_by_index(CMD_Request *rx_message, CMD_Reply *tx_message)
{
RPT_ClientAccessByIndex_Report report;
RPY_ClientAccesses_Client *client;
int n_indices;
uint32_t i, j, req_first_index, req_n_clients, req_min_hits, req_reset;
struct timespec now;
SCH_GetLastEventTime(&now, NULL, NULL);
req_first_index = ntohl(rx_message->data.client_accesses_by_index.first_index);
req_n_clients = ntohl(rx_message->data.client_accesses_by_index.n_clients);
if (req_n_clients > MAX_CLIENT_ACCESSES)
req_n_clients = MAX_CLIENT_ACCESSES;
req_min_hits = ntohl(rx_message->data.client_accesses_by_index.min_hits);
req_reset = ntohl(rx_message->data.client_accesses_by_index.reset);
n_indices = CLG_GetNumberOfIndices();
if (n_indices < 0) {
tx_message->status = htons(STT_INACTIVE);
return;
}
tx_message->reply = htons(RPY_CLIENT_ACCESSES_BY_INDEX3);
tx_message->data.client_accesses_by_index.n_indices = htonl(n_indices);
for (i = req_first_index, j = 0; i < (uint32_t)n_indices && j < req_n_clients; i++) {
if (!CLG_GetClientAccessReportByIndex(i, req_reset, req_min_hits, &report, &now))
continue;
client = &tx_message->data.client_accesses_by_index.clients[j++];
UTI_IPHostToNetwork(&report.ip_addr, &client->ip);
client->ntp_hits = htonl(report.ntp_hits);
client->nke_hits = htonl(report.nke_hits);
client->cmd_hits = htonl(report.cmd_hits);
client->ntp_drops = htonl(report.ntp_drops);
client->nke_drops = htonl(report.nke_drops);
client->cmd_drops = htonl(report.cmd_drops);