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cmdmon: allow client records to be reset

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Add a flag to the CLIENT_ACCESSES_BY_INDEX request to reset the
NTP/cmdmon hits/dropped counters after reporting the current values.

Add -r option to the chronyc clients command to perform the reset. This
should make it easier to find clients that send large number of requests
over short periods of time.
This commit is contained in:
Miroslav Lichvar
2020-05-18 13:28:49 +02:00
parent a6ec6ec3ac
commit ee2220f2e7
7 changed files with 39 additions and 14 deletions
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8
cmdmon.c
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@@ -137,6 +137,7 @@ static const char permissions[] = {
PERMIT_OPEN, /* NTP_SOURCE_NAME */
PERMIT_AUTH, /* RESET_SOURCES */
PERMIT_AUTH, /* AUTH_DATA */
PERMIT_AUTH, /* CLIENT_ACCESSES_BY_INDEX3 */
};
/* ================================================== */
@@ -1001,7 +1002,7 @@ 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;
uint32_t i, j, req_first_index, req_n_clients, req_reset;
struct timespec now;
SCH_GetLastEventTime(&now, NULL, NULL);
@@ -1010,6 +1011,7 @@ handle_client_accesses_by_index(CMD_Request *rx_message, CMD_Reply *tx_message)
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_reset = ntohl(rx_message->data.client_accesses_by_index.reset);
n_indices = CLG_GetNumberOfIndices();
if (n_indices < 0) {
@@ -1021,7 +1023,7 @@ handle_client_accesses_by_index(CMD_Request *rx_message, CMD_Reply *tx_message)
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, &report, &now))
if (!CLG_GetClientAccessReportByIndex(i, req_reset, &report, &now))
continue;
client = &tx_message->data.client_accesses_by_index.clients[j++];
@@ -1594,7 +1596,7 @@ read_from_cmd_socket(int sock_fd, int event, void *anything)
handle_cyclelogs(&rx_message, &tx_message);
break;
case REQ_CLIENT_ACCESSES_BY_INDEX2:
case REQ_CLIENT_ACCESSES_BY_INDEX3:
handle_client_accesses_by_index(&rx_message, &tx_message);
break;