client: add ntpdata command
This commit is contained in:
Miroslav Lichvar
parent
535ca64bba
commit
64f9205189
2 changed files with 166 additions and 0 deletions
81
client.c
81
client.c
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@ -1193,6 +1193,7 @@ give_help(void)
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"\0\0"
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"NTP sources:\0\0"
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"activity\0Check how many NTP sources are online/offline\0"
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"ntpdata <address>\0Display information about last valid measurement\0"
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"add server <address> [options]\0Add new NTP server\0"
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"add peer <address> [options]\0Add new NTP peer\0"
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"delete <address>\0Remove server or peer\0"
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@ -2193,6 +2194,83 @@ process_cmd_tracking(char *line)
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/* ================================================== */
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static int
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process_cmd_ntpdata(char *line)
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{
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CMD_Request request;
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CMD_Reply reply;
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IPAddr remote_addr, local_addr;
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struct timespec ref_time;
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if (DNS_Name2IPAddress(line, &remote_addr, 1) != DNS_Success) {
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LOG(LOGS_ERR, LOGF_Client, "Could not get address for hostname");
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return 0;
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}
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request.command = htons(REQ_NTP_DATA);
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UTI_IPHostToNetwork(&remote_addr, &request.data.ntp_data.ip_addr);
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if (!request_reply(&request, &reply, RPY_NTP_DATA, 0))
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return 0;
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UTI_IPNetworkToHost(&reply.data.ntp_data.remote_addr, &remote_addr);
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UTI_IPNetworkToHost(&reply.data.ntp_data.local_addr, &local_addr);
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UTI_TimespecNetworkToHost(&reply.data.ntp_data.ref_time, &ref_time);
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print_report("Remote address : %s\n"
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"Remote port : %u\n"
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"Local address : %s\n"
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"Leap status : %L\n"
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"Version : %u\n"
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"Mode : %M\n"
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"Stratum : %u\n"
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"Poll : %u\n"
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"Precision : %.9f seconds\n"
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"Root delay : %.6f seconds\n"
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"Root dispersion : %.6f seconds\n"
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"Reference ID : %R\n"
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"Reference time : %T\n"
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"Offset : %+.9f seconds\n"
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"Peer delay : %.9f seconds\n"
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"Peer dispersion : %.9f seconds\n"
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"Response time : %.9f seconds\n"
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"Jitter asymmetry: %+.2f\n"
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"NTP tests : %.3b %.3b %.4b\n"
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"Interleaved : %B\n"
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"Authenticated : %B\n"
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"TX timestamping : %N\n"
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"RX timestamping : %N\n"
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"Total TX : %U\n"
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"Total RX : %U\n"
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"Total valid RX : %U\n",
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UTI_IPToString(&remote_addr), ntohs(reply.data.ntp_data.remote_port),
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UTI_IPToString(&local_addr),
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reply.data.ntp_data.leap, reply.data.ntp_data.version,
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reply.data.ntp_data.mode, reply.data.ntp_data.stratum,
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reply.data.ntp_data.poll, UTI_Log2ToDouble(reply.data.ntp_data.precision),
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UTI_FloatNetworkToHost(reply.data.ntp_data.root_delay),
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UTI_FloatNetworkToHost(reply.data.ntp_data.root_dispersion),
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(unsigned long)ntohl(reply.data.ntp_data.ref_id), &ref_time,
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UTI_FloatNetworkToHost(reply.data.ntp_data.offset),
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UTI_FloatNetworkToHost(reply.data.ntp_data.peer_delay),
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UTI_FloatNetworkToHost(reply.data.ntp_data.peer_dispersion),
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UTI_FloatNetworkToHost(reply.data.ntp_data.response_time),
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UTI_FloatNetworkToHost(reply.data.ntp_data.jitter_asymmetry),
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ntohs(reply.data.ntp_data.flags) >> 7,
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ntohs(reply.data.ntp_data.flags) >> 4,
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ntohs(reply.data.ntp_data.flags),
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ntohs(reply.data.ntp_data.flags) & RPY_NTP_FLAG_INTERLEAVED,
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ntohs(reply.data.ntp_data.flags) & RPY_NTP_FLAG_AUTHENTICATED,
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reply.data.ntp_data.tx_tss_char, reply.data.ntp_data.rx_tss_char,
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(unsigned long)ntohl(reply.data.ntp_data.total_tx_count),
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(unsigned long)ntohl(reply.data.ntp_data.total_rx_count),
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(unsigned long)ntohl(reply.data.ntp_data.total_valid_count),
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REPORT_END);
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return 1;
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}
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/* ================================================== */
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static int
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process_cmd_serverstats(char *line)
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{
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@ -2809,6 +2887,9 @@ process_line(char *line)
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do_normal_submit = process_cmd_minpoll(&tx_message, line);
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} else if (!strcmp(command, "minstratum")) {
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do_normal_submit = process_cmd_minstratum(&tx_message, line);
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} else if (!strcmp(command, "ntpdata")) {
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do_normal_submit = 0;
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ret = process_cmd_ntpdata(line);
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} else if (!strcmp(command, "offline")) {
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do_normal_submit = process_cmd_offline(&tx_message, line);
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} else if (!strcmp(command, "online")) {
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@ -441,6 +441,91 @@ the offline state.
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the name of the server or peer was not resolved to an address yet; this source is
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not visible in the *sources* and *sourcestats* reports.
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[[ntpdata]]*ntpdata* _address_::
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The *ntpdata* command displays the last valid measurement and other
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NTP-specific information about the NTP source. An example of the output is
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shown below.
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+
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----
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Remote address : 203.0.113.15
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Remote port : 123
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Local address : 203.0.113.74
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Leap status : Normal
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Version : 4
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Mode : Server
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Stratum : 1
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Poll : 10
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Precision : 0.000000060 seconds
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Root delay : 0.000015 seconds
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Root dispersion : 0.000015 seconds
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Reference ID : 50505331
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Reference time : Fri Nov 25 15:22:12 2016
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Offset : -0.000060878 seconds
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Peer delay : 0.000175634 seconds
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Peer dispersion : 0.000000681 seconds
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Response time : 0.000053050 seconds
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Jitter asymmetry: +0.00
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NTP tests : 111 111 1111
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Interleaved : No
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Authenticated : No
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TX timestamping : Kernel
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RX timestamping : Kernel
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Total TX : 24
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Total RX : 24
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Total valid RX : 24
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----
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+
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The fields are explained as follows:
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+
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*Remote address*:::
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The IP address of the NTP server or peer.
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*Remote port*:::
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The UDP port number to which the request was sent. The standard NTP port is
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123.
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*Local address*:::
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The local IP address which received the response.
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*Leap status*:::
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*Version*:::
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*Mode*:::
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*Stratum*:::
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*Poll*:::
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*Precision*:::
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*Root delay*:::
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*Root dispersion*:::
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*Reference ID*:::
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*Reference time*:::
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The NTP values from the last valid response.
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*Offset*:::
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*Peer delay*:::
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*Peer dispersion*:::
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The measured values.
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*Response time*:::
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The time the server or peer spent in processing of the request and waiting
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before sending the response.
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*Jitter asymmetry*:::
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The estimated asymmetry of network jitter on the path to the source. The
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asymmetry can be between -0.5 and 0.5. A negative value means the delay of
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packets sent to the source is more variable than the delay of packets sent
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from the source back.
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*NTP tests*:::
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Results of RFC 5905 tests 1 through 3, 5 through 7, and tests for maximum
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delay, delay ratio, delay dev ratio, and synchronisation loop.
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*Interleaved*:::
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This shows if the response was in the interleaved mode.
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*Authenticated*:::
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This shows if the response was authenticated.
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*TX timestamping*:::
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The source of the local transmit timestamp. Valid values are _Daemon_,
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_Kernel_, and _Hardware_.
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*RX timestamping*:::
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The source of the local receive timestamp.
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*Total TX*:::
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The number of packets sent to the source.
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*Total RX*:::
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The number of all packets received from the source.
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*Total valid RX*:::
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The number of valid packets received from the source.
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[[add_peer]]*add peer* _address_ [_option_]...::
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The *add peer* command allows a new NTP peer to be added whilst
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*chronyd* is running.
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