Imported Upstream version 1.4.11
This commit is contained in:
parent
cff68b4c0a
commit
1d1585cd09
72 changed files with 16170 additions and 13657 deletions
686
plugins/check_ntp_peer.c
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686
plugins/check_ntp_peer.c
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/******************************************************************************
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*
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* Nagios check_ntp_peer plugin
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*
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* License: GPL
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* Copyright (c) 2006 sean finney <seanius@seanius.net>
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* Copyright (c) 2007 nagios-plugins team
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*
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* Last Modified: $Date: 2007-12-11 13:31:22 +0000 (Tue, 11 Dec 2007) $
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*
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* Description:
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*
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* This file contains the check_ntp_peer plugin
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*
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* This plugin checks an NTP server independent of any commandline
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* programs or external libraries.
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*
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* Use this plugin to check the health of an NTP server. It supports
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* checking the offset with the sync peer, the jitter and stratum. This
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* plugin will not check the clock offset between the local host and NTP
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* server; please use check_ntp_time for that purpose.
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*
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*
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* License Information:
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id: check_ntp_peer.c 1864 2007-12-11 13:31:22Z dermoth $
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*****************************************************************************/
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const char *progname = "check_ntp_peer";
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const char *revision = "$Revision: 1864 $";
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const char *copyright = "2007";
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const char *email = "nagiosplug-devel@lists.sourceforge.net";
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#include "common.h"
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#include "netutils.h"
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#include "utils.h"
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static char *server_address=NULL;
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static int verbose=0;
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static int quiet=0;
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static short do_offset=0;
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static char *owarn="60";
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static char *ocrit="120";
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static short do_stratum=0;
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static char *swarn="-1:16";
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static char *scrit="-1:16";
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static short do_jitter=0;
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static char *jwarn="-1:5000";
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static char *jcrit="-1:10000";
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static int syncsource_found=0;
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int process_arguments (int, char **);
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thresholds *offset_thresholds = NULL;
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thresholds *jitter_thresholds = NULL;
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thresholds *stratum_thresholds = NULL;
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void print_help (void);
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void print_usage (void);
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/* max size of control message data */
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#define MAX_CM_SIZE 468
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/* this structure holds everything in an ntp control message as per rfc1305 */
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typedef struct {
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uint8_t flags; /* byte with leapindicator,vers,mode. see macros */
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uint8_t op; /* R,E,M bits and Opcode */
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uint16_t seq; /* Packet sequence */
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uint16_t status; /* Clock status */
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uint16_t assoc; /* Association */
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uint16_t offset; /* Similar to TCP sequence # */
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uint16_t count; /* # bytes of data */
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char data[MAX_CM_SIZE]; /* ASCII data of the request */
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/* NB: not necessarily NULL terminated! */
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} ntp_control_message;
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/* this is an association/status-word pair found in control packet reponses */
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typedef struct {
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uint16_t assoc;
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uint16_t status;
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} ntp_assoc_status_pair;
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/* bits 1,2 are the leap indicator */
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#define LI_MASK 0xc0
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#define LI(x) ((x&LI_MASK)>>6)
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#define LI_SET(x,y) do{ x |= ((y<<6)&LI_MASK); }while(0)
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/* and these are the values of the leap indicator */
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#define LI_NOWARNING 0x00
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#define LI_EXTRASEC 0x01
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#define LI_MISSINGSEC 0x02
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#define LI_ALARM 0x03
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/* bits 3,4,5 are the ntp version */
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#define VN_MASK 0x38
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#define VN(x) ((x&VN_MASK)>>3)
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#define VN_SET(x,y) do{ x |= ((y<<3)&VN_MASK); }while(0)
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#define VN_RESERVED 0x02
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/* bits 6,7,8 are the ntp mode */
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#define MODE_MASK 0x07
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#define MODE(x) (x&MODE_MASK)
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#define MODE_SET(x,y) do{ x |= (y&MODE_MASK); }while(0)
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/* here are some values */
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#define MODE_CLIENT 0x03
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#define MODE_CONTROLMSG 0x06
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/* In control message, bits 8-10 are R,E,M bits */
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#define REM_MASK 0xe0
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#define REM_RESP 0x80
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#define REM_ERROR 0x40
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#define REM_MORE 0x20
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/* In control message, bits 11 - 15 are opcode */
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#define OP_MASK 0x1f
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#define OP_SET(x,y) do{ x |= (y&OP_MASK); }while(0)
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#define OP_READSTAT 0x01
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#define OP_READVAR 0x02
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/* In peer status bytes, bits 6,7,8 determine clock selection status */
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#define PEER_SEL(x) ((ntohs(x)>>8)&0x07)
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#define PEER_INCLUDED 0x04
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#define PEER_SYNCSOURCE 0x06
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/* NTP control message header is 12 bytes, plus any data in the data
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* field, plus null padding to the nearest 32-bit boundary per rfc.
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*/
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#define SIZEOF_NTPCM(m) (12+ntohs(m.count)+((m.count)?4-(ntohs(m.count)%4):0))
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/* finally, a little helper or two for debugging: */
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#define DBG(x) do{if(verbose>1){ x; }}while(0);
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#define PRINTSOCKADDR(x) \
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do{ \
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printf("%u.%u.%u.%u", (x>>24)&0xff, (x>>16)&0xff, (x>>8)&0xff, x&0xff);\
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}while(0);
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void print_ntp_control_message(const ntp_control_message *p){
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int i=0, numpeers=0;
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const ntp_assoc_status_pair *peer=NULL;
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printf("control packet contents:\n");
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printf("\tflags: 0x%.2x , 0x%.2x\n", p->flags, p->op);
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printf("\t li=%d (0x%.2x)\n", LI(p->flags), p->flags&LI_MASK);
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printf("\t vn=%d (0x%.2x)\n", VN(p->flags), p->flags&VN_MASK);
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printf("\t mode=%d (0x%.2x)\n", MODE(p->flags), p->flags&MODE_MASK);
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printf("\t response=%d (0x%.2x)\n", (p->op&REM_RESP)>0, p->op&REM_RESP);
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printf("\t more=%d (0x%.2x)\n", (p->op&REM_MORE)>0, p->op&REM_MORE);
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printf("\t error=%d (0x%.2x)\n", (p->op&REM_ERROR)>0, p->op&REM_ERROR);
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printf("\t op=%d (0x%.2x)\n", p->op&OP_MASK, p->op&OP_MASK);
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printf("\tsequence: %d (0x%.2x)\n", ntohs(p->seq), ntohs(p->seq));
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printf("\tstatus: %d (0x%.2x)\n", ntohs(p->status), ntohs(p->status));
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printf("\tassoc: %d (0x%.2x)\n", ntohs(p->assoc), ntohs(p->assoc));
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printf("\toffset: %d (0x%.2x)\n", ntohs(p->offset), ntohs(p->offset));
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printf("\tcount: %d (0x%.2x)\n", ntohs(p->count), ntohs(p->count));
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numpeers=ntohs(p->count)/(sizeof(ntp_assoc_status_pair));
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if(p->op&REM_RESP && p->op&OP_READSTAT){
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peer=(ntp_assoc_status_pair*)p->data;
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for(i=0;i<numpeers;i++){
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printf("\tpeer id %.2x status %.2x",
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ntohs(peer[i].assoc), ntohs(peer[i].status));
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if (PEER_SEL(peer[i].status) >= PEER_INCLUDED){
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if(PEER_SEL(peer[i].status) >= PEER_SYNCSOURCE){
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printf(" <-- current sync source");
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} else {
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printf(" <-- current sync candidate");
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}
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}
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printf("\n");
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}
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}
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}
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char *extract_value(const char *varlist, const char *name){
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char *tmpvarlist=NULL, *tmpkey=NULL, *value=NULL;
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int last=0;
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/* The following code require a non-empty varlist */
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if(strlen(varlist) == 0)
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return NULL;
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tmpvarlist = strdup(varlist);
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tmpkey = strtok(tmpvarlist, "=");
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do {
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if(strstr(tmpkey, name) != NULL) {
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value = strtok(NULL, ",");
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last = 1;
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}
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} while (last == 0 && (tmpkey = strtok(NULL, "=")));
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return value;
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}
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void
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setup_control_request(ntp_control_message *p, uint8_t opcode, uint16_t seq){
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memset(p, 0, sizeof(ntp_control_message));
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LI_SET(p->flags, LI_NOWARNING);
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VN_SET(p->flags, VN_RESERVED);
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MODE_SET(p->flags, MODE_CONTROLMSG);
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OP_SET(p->op, opcode);
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p->seq = htons(seq);
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/* Remaining fields are zero for requests */
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}
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/* This function does all the actual work; roughly here's what it does
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* beside setting the offest, jitter and stratum passed as argument:
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* - offset can be negative, so if it cannot get the offset, offset_result
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* is set to UNKNOWN, otherwise OK.
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* - jitter and stratum are set to -1 if they cannot be retrieved so any
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* positive value means a success retrieving the value.
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* - status is set to WARNING if there's no sync.peer (otherwise OK) and is
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* the return value of the function.
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* status is pretty much useless as syncsource_found is a global variable
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* used later in main to check is the server was synchronized. It works
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* so I left it alone */
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int ntp_request(const char *host, double *offset, int *offset_result, double *jitter, int *stratum){
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int conn=-1, i, npeers=0, num_candidates=0;
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double tmp_offset = 0;
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int min_peer_sel=PEER_INCLUDED;
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int peers_size=0, peer_offset=0;
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int status;
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ntp_assoc_status_pair *peers=NULL;
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ntp_control_message req;
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const char *getvar = "stratum,offset,jitter";
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char *data, *value, *nptr;
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void *tmp;
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status = STATE_OK;
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*offset_result = STATE_UNKNOWN;
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*jitter = *stratum = -1;
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/* Long-winded explanation:
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* Getting the sync peer offset, jitter and stratum requires a number of
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* steps:
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* 1) Send a READSTAT request.
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* 2) Interpret the READSTAT reply
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* a) The data section contains a list of peer identifiers (16 bits)
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* and associated status words (16 bits)
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* b) We want the value of 0x06 in the SEL (peer selection) value,
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* which means "current synchronizatin source". If that's missing,
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* we take anything better than 0x04 (see the rfc for details) but
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* set a minimum of warning.
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* 3) Send a READVAR request for information on each peer identified
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* in 2b greater than the minimum selection value.
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* 4) Extract the offset, jitter and stratum value from the data[]
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* (it's ASCII)
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*/
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my_udp_connect(server_address, 123, &conn);
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/* keep sending requests until the server stops setting the
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* REM_MORE bit, though usually this is only 1 packet. */
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do{
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setup_control_request(&req, OP_READSTAT, 1);
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DBG(printf("sending READSTAT request"));
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write(conn, &req, SIZEOF_NTPCM(req));
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DBG(print_ntp_control_message(&req));
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/* Attempt to read the largest size packet possible */
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req.count=htons(MAX_CM_SIZE);
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DBG(printf("recieving READSTAT response"))
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if(read(conn, &req, SIZEOF_NTPCM(req)) == -1)
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die(STATE_CRITICAL, "NTP CRITICAL: No response from NTP server\n");
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DBG(print_ntp_control_message(&req));
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/* Each peer identifier is 4 bytes in the data section, which
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* we represent as a ntp_assoc_status_pair datatype.
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*/
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peers_size+=ntohs(req.count);
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if((tmp=realloc(peers, peers_size)) == NULL)
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free(peers), die(STATE_UNKNOWN, "can not (re)allocate 'peers' buffer\n");
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peers=tmp;
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memcpy((void*)((ptrdiff_t)peers+peer_offset), (void*)req.data, ntohs(req.count));
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npeers=peers_size/sizeof(ntp_assoc_status_pair);
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peer_offset+=ntohs(req.count);
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} while(req.op&REM_MORE);
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/* first, let's find out if we have a sync source, or if there are
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* at least some candidates. In the latter case we'll issue
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* a warning but go ahead with the check on them. */
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for (i = 0; i < npeers; i++){
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if (PEER_SEL(peers[i].status) >= PEER_INCLUDED){
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num_candidates++;
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if(PEER_SEL(peers[i].status) >= PEER_SYNCSOURCE){
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syncsource_found=1;
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min_peer_sel=PEER_SYNCSOURCE;
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}
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}
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}
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if(verbose) printf("%d candiate peers available\n", num_candidates);
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if(verbose && syncsource_found) printf("synchronization source found\n");
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if(! syncsource_found){
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status = STATE_WARNING;
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if(verbose) printf("warning: no synchronization source found\n");
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}
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for (i = 0; i < npeers; i++){
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/* Only query this server if it is the current sync source */
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/* If there's no sync.peer, query all candidates and use the best one */
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if (PEER_SEL(peers[i].status) >= min_peer_sel){
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if(verbose) printf("Getting offset, jitter and stratum for peer %.2x\n", ntohs(peers[i].assoc));
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asprintf(&data, "");
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do{
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setup_control_request(&req, OP_READVAR, 2);
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req.assoc = peers[i].assoc;
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/* Putting the wanted variable names in the request
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* cause the server to provide _only_ the requested values.
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* thus reducing net traffic, guaranteeing us only a single
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* datagram in reply, and making intepretation much simpler
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*/
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/* Older servers doesn't know what jitter is, so if we get an
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* error on the first pass we redo it with "dispersion" */
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strncpy(req.data, getvar, MAX_CM_SIZE-1);
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req.count = htons(strlen(getvar));
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DBG(printf("sending READVAR request...\n"));
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write(conn, &req, SIZEOF_NTPCM(req));
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DBG(print_ntp_control_message(&req));
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req.count = htons(MAX_CM_SIZE);
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DBG(printf("receiving READVAR response...\n"));
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read(conn, &req, SIZEOF_NTPCM(req));
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DBG(print_ntp_control_message(&req));
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if(!(req.op&REM_ERROR))
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asprintf(&data, "%s%s", data, req.data);
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} while(req.op&REM_MORE);
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if(req.op&REM_ERROR) {
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if(strstr(getvar, "jitter")) {
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if(verbose) printf("The command failed. This is usually caused by servers refusing the 'jitter'\nvariable. Restarting with 'dispersion'...\n");
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getvar = "stratum,offset,dispersion";
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i--;
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continue;
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} else if(strlen(getvar)) {
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if(verbose) printf("Server didn't like dispersion either; will retrieve everything\n");
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getvar = "";
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i--;
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continue;
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}
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}
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if(verbose > 1)
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printf("Server responded: >>>%s<<<\n", data);
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/* get the offset */
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if(verbose)
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printf("parsing offset from peer %.2x: ", ntohs(peers[i].assoc));
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value = extract_value(data, "offset");
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nptr=NULL;
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/* Convert the value if we have one */
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if(value != NULL)
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tmp_offset = strtod(value, &nptr) / 1000;
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/* If value is null or no conversion was performed */
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if(value == NULL || value==nptr) {
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if(verbose) printf("error: unable to read server offset response.\n");
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} else {
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if(verbose) printf("%.10g\n", tmp_offset);
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if(*offset_result == STATE_UNKNOWN || fabs(tmp_offset) < fabs(*offset)) {
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*offset = tmp_offset;
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*offset_result = STATE_OK;
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} else {
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/* Skip this one; move to the next */
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continue;
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}
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}
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if(do_jitter) {
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/* get the jitter */
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if(verbose) {
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printf("parsing %s from peer %.2x: ", strstr(getvar, "dispersion") != NULL ? "dispersion" : "jitter", ntohs(peers[i].assoc));
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}
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value = extract_value(data, strstr(getvar, "dispersion") != NULL ? "dispersion" : "jitter");
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nptr=NULL;
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/* Convert the value if we have one */
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if(value != NULL)
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*jitter = strtod(value, &nptr);
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/* If value is null or no conversion was performed */
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if(value == NULL || value==nptr) {
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if(verbose) printf("error: unable to read server jitter/dispersion response.\n");
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*jitter = -1;
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} else if(verbose) {
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printf("%.10g\n", *jitter);
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}
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}
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if(do_stratum) {
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/* get the stratum */
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if(verbose) {
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printf("parsing stratum from peer %.2x: ", ntohs(peers[i].assoc));
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}
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value = extract_value(data, "stratum");
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nptr=NULL;
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/* Convert the value if we have one */
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if(value != NULL)
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*stratum = strtol(value, &nptr, 10);
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if(value == NULL || value==nptr) {
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if(verbose) printf("error: unable to read server stratum response.\n");
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*stratum = -1;
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} else {
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if(verbose) printf("%i\n", *stratum);
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}
|
||||
}
|
||||
} /* if (PEER_SEL(peers[i].status) >= min_peer_sel) */
|
||||
} /* for (i = 0; i < npeers; i++) */
|
||||
|
||||
close(conn);
|
||||
if(peers!=NULL) free(peers);
|
||||
|
||||
return status;
|
||||
}
|
||||
|
||||
int process_arguments(int argc, char **argv){
|
||||
int c;
|
||||
int option=0;
|
||||
static struct option longopts[] = {
|
||||
{"version", no_argument, 0, 'V'},
|
||||
{"help", no_argument, 0, 'h'},
|
||||
{"verbose", no_argument, 0, 'v'},
|
||||
{"use-ipv4", no_argument, 0, '4'},
|
||||
{"use-ipv6", no_argument, 0, '6'},
|
||||
{"quiet", no_argument, 0, 'q'},
|
||||
{"warning", required_argument, 0, 'w'},
|
||||
{"critical", required_argument, 0, 'c'},
|
||||
{"swarn", required_argument, 0, 'W'},
|
||||
{"scrit", required_argument, 0, 'C'},
|
||||
{"jwarn", required_argument, 0, 'j'},
|
||||
{"jcrit", required_argument, 0, 'k'},
|
||||
{"timeout", required_argument, 0, 't'},
|
||||
{"hostname", required_argument, 0, 'H'},
|
||||
{0, 0, 0, 0}
|
||||
};
|
||||
|
||||
|
||||
if (argc < 2)
|
||||
usage ("\n");
|
||||
|
||||
while (1) {
|
||||
c = getopt_long (argc, argv, "Vhv46qw:c:W:C:j:k:t:H:", longopts, &option);
|
||||
if (c == -1 || c == EOF || c == 1)
|
||||
break;
|
||||
|
||||
switch (c) {
|
||||
case 'h':
|
||||
print_help();
|
||||
exit(STATE_OK);
|
||||
break;
|
||||
case 'V':
|
||||
print_revision(progname, revision);
|
||||
exit(STATE_OK);
|
||||
break;
|
||||
case 'v':
|
||||
verbose++;
|
||||
break;
|
||||
case 'q':
|
||||
quiet = 1;
|
||||
break;
|
||||
case 'w':
|
||||
do_offset=1;
|
||||
owarn = optarg;
|
||||
break;
|
||||
case 'c':
|
||||
do_offset=1;
|
||||
ocrit = optarg;
|
||||
break;
|
||||
case 'W':
|
||||
do_stratum=1;
|
||||
swarn = optarg;
|
||||
break;
|
||||
case 'C':
|
||||
do_stratum=1;
|
||||
scrit = optarg;
|
||||
break;
|
||||
case 'j':
|
||||
do_jitter=1;
|
||||
jwarn = optarg;
|
||||
break;
|
||||
case 'k':
|
||||
do_jitter=1;
|
||||
jcrit = optarg;
|
||||
break;
|
||||
case 'H':
|
||||
if(is_host(optarg) == FALSE)
|
||||
usage2(_("Invalid hostname/address"), optarg);
|
||||
server_address = strdup(optarg);
|
||||
break;
|
||||
case 't':
|
||||
socket_timeout=atoi(optarg);
|
||||
break;
|
||||
case '4':
|
||||
address_family = AF_INET;
|
||||
break;
|
||||
case '6':
|
||||
#ifdef USE_IPV6
|
||||
address_family = AF_INET6;
|
||||
#else
|
||||
usage4 (_("IPv6 support not available"));
|
||||
#endif
|
||||
break;
|
||||
case '?':
|
||||
/* print short usage statement if args not parsable */
|
||||
usage5 ();
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if(server_address == NULL){
|
||||
usage4(_("Hostname was not supplied"));
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
char *perfd_offset (double offset)
|
||||
{
|
||||
return fperfdata ("offset", offset, "s",
|
||||
TRUE, offset_thresholds->warning->end,
|
||||
TRUE, offset_thresholds->critical->end,
|
||||
FALSE, 0, FALSE, 0);
|
||||
}
|
||||
|
||||
char *perfd_jitter (double jitter)
|
||||
{
|
||||
return fperfdata ("jitter", jitter, "",
|
||||
do_jitter, jitter_thresholds->warning->end,
|
||||
do_jitter, jitter_thresholds->critical->end,
|
||||
TRUE, 0, FALSE, 0);
|
||||
}
|
||||
|
||||
char *perfd_stratum (int stratum)
|
||||
{
|
||||
return perfdata ("stratum", stratum, "",
|
||||
do_stratum, (int)stratum_thresholds->warning->end,
|
||||
do_stratum, (int)stratum_thresholds->critical->end,
|
||||
TRUE, 0, TRUE, 16);
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[]){
|
||||
int result, offset_result, stratum;
|
||||
double offset=0, jitter=0;
|
||||
char *result_line, *perfdata_line;
|
||||
|
||||
setlocale (LC_ALL, "");
|
||||
bindtextdomain (PACKAGE, LOCALEDIR);
|
||||
textdomain (PACKAGE);
|
||||
|
||||
if (process_arguments (argc, argv) == ERROR)
|
||||
usage4 (_("Could not parse arguments"));
|
||||
|
||||
set_thresholds(&offset_thresholds, owarn, ocrit);
|
||||
set_thresholds(&jitter_thresholds, jwarn, jcrit);
|
||||
set_thresholds(&stratum_thresholds, swarn, scrit);
|
||||
|
||||
/* initialize alarm signal handling */
|
||||
signal (SIGALRM, socket_timeout_alarm_handler);
|
||||
|
||||
/* set socket timeout */
|
||||
alarm (socket_timeout);
|
||||
|
||||
/* This returns either OK or WARNING (See comment preceeding ntp_request) */
|
||||
result = ntp_request(server_address, &offset, &offset_result, &jitter, &stratum);
|
||||
|
||||
if(offset_result == STATE_UNKNOWN) {
|
||||
/* if there's no sync peer (this overrides ntp_request output): */
|
||||
result = (quiet == 1 ? STATE_UNKNOWN : STATE_CRITICAL);
|
||||
} else {
|
||||
/* Be quiet if there's no candidates either */
|
||||
if (quiet == 1 && result == STATE_WARNING)
|
||||
result = STATE_UNKNOWN;
|
||||
result = max_state_alt(result, get_status(fabs(offset), offset_thresholds));
|
||||
}
|
||||
|
||||
if(do_stratum)
|
||||
result = max_state_alt(result, get_status(stratum, stratum_thresholds));
|
||||
|
||||
if(do_jitter)
|
||||
result = max_state_alt(result, get_status(jitter, jitter_thresholds));
|
||||
|
||||
switch (result) {
|
||||
case STATE_CRITICAL :
|
||||
asprintf(&result_line, _("NTP CRITICAL:"));
|
||||
break;
|
||||
case STATE_WARNING :
|
||||
asprintf(&result_line, _("NTP WARNING:"));
|
||||
break;
|
||||
case STATE_OK :
|
||||
asprintf(&result_line, _("NTP OK:"));
|
||||
break;
|
||||
default :
|
||||
asprintf(&result_line, _("NTP UNKNOWN:"));
|
||||
break;
|
||||
}
|
||||
if(!syncsource_found)
|
||||
asprintf(&result_line, "%s %s,", result_line, _("Server not synchronized"));
|
||||
|
||||
if(offset_result == STATE_UNKNOWN){
|
||||
asprintf(&result_line, "%s %s", result_line, _("Offset unknown"));
|
||||
asprintf(&perfdata_line, "");
|
||||
} else {
|
||||
asprintf(&result_line, "%s %s %.10g secs", result_line, _("Offset"), offset);
|
||||
asprintf(&perfdata_line, "%s", perfd_offset(offset));
|
||||
}
|
||||
if (do_jitter) {
|
||||
asprintf(&result_line, "%s, jitter=%f", result_line, jitter);
|
||||
asprintf(&perfdata_line, "%s %s", perfdata_line, perfd_jitter(jitter));
|
||||
}
|
||||
if (do_stratum) {
|
||||
asprintf(&result_line, "%s, stratum=%i", result_line, stratum);
|
||||
asprintf(&perfdata_line, "%s %s", perfdata_line, perfd_stratum(stratum));
|
||||
}
|
||||
printf("%s|%s\n", result_line, perfdata_line);
|
||||
|
||||
if(server_address!=NULL) free(server_address);
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
|
||||
void print_help(void){
|
||||
print_revision(progname, revision);
|
||||
|
||||
printf ("Copyright (c) 2006 Sean Finney\n");
|
||||
printf (COPYRIGHT, copyright, email);
|
||||
|
||||
printf ("%s\n", _("This plugin checks the selected ntp server"));
|
||||
|
||||
printf ("\n\n");
|
||||
|
||||
print_usage();
|
||||
printf (_(UT_HELP_VRSN));
|
||||
printf (_(UT_HOST_PORT), 'p', "123");
|
||||
printf (" %s\n", "-q, --quiet");
|
||||
printf (" %s\n", _("Returns UNKNOWN instead of CRITICAL or WARNING if server isn't synchronized"));
|
||||
printf (" %s\n", "-w, --warning=THRESHOLD");
|
||||
printf (" %s\n", _("Offset to result in warning status (seconds)"));
|
||||
printf (" %s\n", "-c, --critical=THRESHOLD");
|
||||
printf (" %s\n", _("Offset to result in critical status (seconds)"));
|
||||
printf (" %s\n", "-W, --warning=THRESHOLD");
|
||||
printf (" %s\n", _("Warning threshold for stratum"));
|
||||
printf (" %s\n", "-W, --critical=THRESHOLD");
|
||||
printf (" %s\n", _("Critical threshold for stratum"));
|
||||
printf (" %s\n", "-j, --warning=THRESHOLD");
|
||||
printf (" %s\n", _("Warning threshold for jitter"));
|
||||
printf (" %s\n", "-k, --critical=THRESHOLD");
|
||||
printf (" %s\n", _("Critical threshold for jitter"));
|
||||
printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT);
|
||||
printf (_(UT_VERBOSE));
|
||||
|
||||
printf("\n");
|
||||
printf("%s\n", _("Notes:"));
|
||||
printf(" %s\n", _("This plugin checks an NTP server independent of any commandline"));
|
||||
printf(" %s\n\n", _("programs or external libraries."));
|
||||
printf(" %s\n", _("Use this plugin to check the health of an NTP server. It supports"));
|
||||
printf(" %s\n", _("checking the offset with the sync peer, the jitter and stratum. This"));
|
||||
printf(" %s\n", _("plugin will not check the clock offset between the local host and NTP"));
|
||||
printf(" %s\n\n", _("server; please use check_ntp_time for that purpose."));
|
||||
|
||||
printf(" %s\n", _("See:"));
|
||||
printf(" %s\n", ("http://nagiosplug.sourceforge.net/developer-guidelines.html#THRESHOLDFORMAT"));
|
||||
printf(" %s\n", _("for THRESHOLD format and examples."));
|
||||
|
||||
printf("\n");
|
||||
printf("%s\n", _("Examples:"));
|
||||
printf(" %s\n", _("Simple NTP server check:"));
|
||||
printf(" %s\n", ("./check_ntp_peer -H ntpserv -w 0.5 -c 1"));
|
||||
printf(" %s\n", _("Check jitter too, avoiding critical notifications if jitter isn't available"));
|
||||
printf(" %s\n", _("(See Notes above for more details on thresholds formats):"));
|
||||
printf(" %s\n", ("./check_ntp_peer -H ntpserv -w 0.5 -c 1 -j -1:100 -k -1:200"));
|
||||
printf(" %s\n", _("Check only stratum:"));
|
||||
printf(" %s\n", ("./check_ntp_peer -H ntpserv -W 4 -C 6"));
|
||||
|
||||
printf (_(UT_SUPPORT));
|
||||
}
|
||||
|
||||
void
|
||||
print_usage(void)
|
||||
{
|
||||
printf (_("Usage:"));
|
||||
printf(" %s -H <host> [-w <warn>] [-c <crit>] [-W <warn>] [-C <crit>]\n", progname);
|
||||
printf(" [-j <warn>] [-k <crit>] [-v verbose]\n");
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue