Initial revision

git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@2 f882894a-f735-0410-b71e-b25c423dba1c

1 files changed, 430 insertions, 0 deletions

diff --git a/contrib/check_fping_in.c b/contrib/check_fping_in.c
new file mode 100644
index 00000000..50fd5eea
--- /dev/null
+++ b/contrib/check_fping_in.c
@@ -0,0 +1,430 @@
+/******************************************************************************
+*
+* CHECK_INET_FPING.C
+*
+* Program: Fping plugin for Nagios
+* License: GPL
+* Copyright (c) 1999 Didi Rieder (adrieder@sbox.tu-graz.ac.at)
+* $Id$
+*
+* Modifications:
+*
+* 08-24-1999 Didi Rieder (adrieder@sbox.tu-graz.ac.at)
+*            Intial Coding
+* 09-11-1999 Karl DeBisschop (kdebiss@alum.mit.edu)
+*            Change to spopen
+*            Fix so that state unknown is returned by default
+*            (formerly would give state ok if no fping specified)
+*            Add server_name to output
+*            Reformat to 80-character standard screen
+* 11-18-1999 Karl DeBisschop (kdebiss@alum.mit.edu)
+*            set STATE_WARNING of stderr written or nonzero status returned
+* 09-29-2000 Matthew Grant (matthewg@plain.co.nz)
+*            changes for monitoring multiple hosts for checking Internet
+*            reachibility
+*
+* Description:
+*
+* This plugin will use the /bin/fping command (from nagios) to ping
+* the specified host for a fast check if the host is alive. Note that
+* it is necessary to set the suid flag on fping.
+******************************************************************************/
+
+#include "config.h"
+#include "common.h"
+#include "popen.h"
+#include "utils.h"
+
+#define PROGNAME "check_fping"
+#define PACKET_COUNT 15
+#define PACKET_SIZE 56
+#define CRITICAL_COUNT 2
+#define WARNING_COUNT 1
+#define UNKNOWN_PACKET_LOSS 200 /* 200% */
+#define UNKNOWN_TRIP_TIME -1.0 /* -1 seconds */
+
+#define STRSZ 100
+
+int textscan(char *buf);
+int process_arguments(int, char **);
+int get_threshold (char *arg, char *rv[2]);
+void print_usage(void);
+void print_help(void);
+
+char *server_names=NULL;
+char *name="INTERNET";
+int cthresh=CRITICAL_COUNT;
+int wthresh=WARNING_COUNT;
+int nnames=0;
+int tpl=UNKNOWN_PACKET_LOSS;
+double trta=UNKNOWN_TRIP_TIME;
+int packet_size=PACKET_SIZE;
+int packet_count=PACKET_COUNT;
+int verbose=FALSE;
+int fail = 0;
+int not_found = 0;
+int rta_fail = 0;
+int pl_fail = 0;
+int unreachable = 0;
+
+int main(int argc, char **argv){
+	int result;
+	int status=STATE_UNKNOWN;
+	char *servers=NULL;
+	char *command_line=NULL;
+	char *input_buffer=NULL;
+	char *pl_buffer=NULL; 
+	char *rta_buffer=NULL; 
+	input_buffer=malloc(MAX_INPUT_BUFFER);
+	rta_buffer = malloc(80);
+	pl_buffer = malloc(80);
+	memset(rta_buffer, 0, 80);
+	memset(pl_buffer, 0, 80);
+	
+	if(process_arguments(argc,argv)==ERROR)
+		usage("Could not parse arguments\n");
+
+	servers=strscpy(servers,server_names);
+
+	/* compose the command */
+	command_line=ssprintf
+		(command_line,"%s -b %d -c %d %s",
+		 PATH_TO_FPING,
+		 packet_size,
+		 packet_count,
+		 servers);
+
+	if (verbose) printf("%s\n",command_line);
+
+	/* run the command */
+	child_process=spopen(command_line);
+	if(child_process==NULL){
+		printf("Unable to open pipe: %s\n",command_line);
+		return STATE_UNKNOWN;
+	}
+
+	child_stderr=fdopen(child_stderr_array[fileno(child_process)],"r");
+	if(child_stderr==NULL){
+		printf("Could not open stderr for %s\n",command_line);
+	}
+
+	while (fgets(input_buffer,MAX_INPUT_BUFFER-1,child_process)) {
+		if (verbose) printf("%s",input_buffer);
+		result = textscan(input_buffer);
+		status = max(status,result);
+	}
+
+	while(fgets(input_buffer,MAX_INPUT_BUFFER-1,child_stderr)) {
+		if (verbose) printf("%s",input_buffer);
+		result = textscan(input_buffer);
+		status = max(status,result);
+	}
+	
+	(void)fclose(child_stderr);
+
+	/* close the pipe */
+	if(spclose(child_process))
+		status=max(status,STATE_WARNING);
+
+	/* Analyse fail count and produce results */
+	if (fail >= wthresh) {
+		status = max(status, STATE_WARNING);
+	}
+
+	if (fail >= cthresh) {
+		status = max(status, STATE_CRITICAL);
+	}
+	
+	if( tpl != UNKNOWN_PACKET_LOSS ) {
+		snprintf(pl_buffer, 80, ", %d PL", pl_fail);
+	}
+
+	if( trta != UNKNOWN_TRIP_TIME ) {
+		snprintf(rta_buffer, 80, ", %d RTA", rta_fail);
+
+	}
+	
+	printf("FPING %s - %s, %d of %d fail, %d NF, %d UR%s%s\n",
+			state_text(status),
+			(name != NULL ? name : server_names),
+			fail,
+			nnames,
+			not_found,
+			unreachable,
+			pl_buffer,
+			rta_buffer);
+	
+	return status;
+}
+
+
+
+/* analyse fping output - each event resulting in an increment of fail
+ * must be mutually exclusive. packet loss and round trip time analysed 
+ * together, both at once just results in one increment of fail
+ */
+int textscan(char *buf)
+{
+	char *rtastr=NULL;
+	char *losstr=NULL;
+	double loss;
+	double rta;
+	int status=STATE_OK;
+	
+	if (strstr(buf,"not found")) {
+		fail++;
+		not_found++;
+	} else if(strstr(buf,"xmt/rcv/%loss") 
+		&& strstr(buf,"min/avg/max")) {
+		losstr = strstr(buf,"=");
+		losstr = 1+strstr(losstr,"/");
+		losstr = 1+strstr(losstr,"/");
+		rtastr = strstr(buf,"min/avg/max");
+		rtastr = strstr(rtastr,"=");
+		rtastr = 1+index(rtastr,'/');
+		loss = strtod(losstr,NULL);
+		rta = strtod(rtastr,NULL);
+		/* Increment fail counter
+		 */
+		if (tpl!=UNKNOWN_PACKET_LOSS && loss>tpl) {
+			fail++;
+		}
+		else if (trta!=UNKNOWN_TRIP_TIME && rta>trta) {
+			fail++;
+		}
+		else if (loss >= 100) {
+			fail++;
+		}
+		/* Increment other counters 
+		 */
+		if (trta!=UNKNOWN_TRIP_TIME && rta>trta) 
+			rta_fail++;
+		if (tpl!=UNKNOWN_PACKET_LOSS && loss>tpl) 
+			pl_fail++;
+		if (loss >= 100) 
+			unreachable++;
+	} else if(strstr(buf,"xmt/rcv/%loss") ) {
+		losstr = strstr(buf,"=");
+		losstr = 1+strstr(losstr,"/");
+		losstr = 1+strstr(losstr,"/");
+		loss = strtod(losstr,NULL);
+		/* Increment fail counter
+		 */
+		if (tpl!=UNKNOWN_PACKET_LOSS && loss>tpl) {
+			fail++;
+		}
+		else if (loss >= 100) {
+			fail++;
+		}
+		/* Increment other counters 
+		 */
+		if (tpl!=UNKNOWN_PACKET_LOSS && loss>tpl)
+			pl_fail++;
+		if (loss >= 100) 
+			unreachable++;
+	}
+	
+	return status;
+}
+
+
+
+
+/* process command-line arguments */
+int process_arguments(int argc, char **argv)
+{
+	int c;
+
+#ifdef HAVE_GETOPT_H
+	int option_index = 0;
+	static struct option long_options[] =
+	{ 
+		{"hostname"           ,required_argument,0,'H'},
+		{"critical"           ,required_argument,0,'c'},
+		{"warning"            ,required_argument,0,'w'},
+		{"bytes"              ,required_argument,0,'b'},
+		{"number"             ,required_argument,0,'n'},
+		{"pl-threshold"       ,required_argument,0,'p'},
+		{"rta-threshold"      ,required_argument,0,'r'},
+		{"name"               ,required_argument,0,'N'},
+		{"verbose"            ,no_argument,      0,'v'},
+		{"version"            ,no_argument,      0,'V'},
+		{"help"               ,no_argument,      0,'h'},
+		{0,0,0,0}
+	};
+#else
+
+ 	if(argc<2) return ERROR;
+	
+	if (!is_option(argv[1])){
+		server_names=argv[1];
+		argv[1]=argv[0];
+		argv=&argv[1];
+		argc--;
+	}
+#endif
+	
+	while (1){
+#ifdef HAVE_GETOPT_H
+		c = getopt_long(argc,argv,"+hVvH:c:w:b:n:N:p:r:",long_options,&option_index);
+#else
+		c = getopt(argc,argv,"+hVvH:c:w:b:n:N:p:r:");
+#endif
+
+		if (c==-1||c==EOF||c==1)
+			break;
+
+		switch (c)
+			{
+			case '?': /* print short usage statement if args not parsable */
+				printf("%s: Unknown argument: %s\n\n",my_basename(argv[0]),optarg);
+				print_usage();
+				exit(STATE_UNKNOWN);
+			case 'h': /* help */
+				print_help();
+				exit(STATE_OK);
+			case 'V': /* version */
+				print_revision(my_basename(argv[0]),"$Revision$");
+				exit(STATE_OK);
+			case 'v': /* verbose mode */
+				verbose=TRUE;
+				break;
+			case 'H': /* hostname */
+				if(is_host(optarg)==FALSE){
+					printf("Invalid host name/address\n\n");
+					print_usage();
+					exit(STATE_UNKNOWN);
+				}
+				if (server_names != NULL) 
+					server_names=strscat(server_names," ");
+				server_names=strscat(server_names,optarg);
+				nnames++;
+				break;
+			case 'c':
+				if (is_intpos(optarg))
+					cthresh = atoi(optarg);
+				else
+					usage("Critical threshold must be a positive integer"); 
+				break;
+			case 'w':
+				if (is_intpos(optarg))
+					wthresh = atoi(optarg);
+				else
+					usage("Warning threshold must be a postive integer");
+				break;
+			case 'r':
+				if (is_intpos(optarg)) {
+					trta=strtod(optarg,NULL);
+				} 
+				else {
+					usage("RTA threshold must be a positive integer");
+				}
+				break;
+			case 'p':
+				if (is_intpos(optarg)) {
+					tpl=strtod(optarg,NULL);
+				} 
+				else {
+					usage("RTA threshold must be a positive integer");
+				}
+				break;
+			case 'b': /* bytes per packet */
+				if (is_intpos(optarg))
+					packet_size=atoi(optarg);
+				else
+					usage("Packet size must be a positive integer");
+				break;
+			case 'N': /* Name of service */
+				name = optarg;
+				break;
+			case 'n': /* number of packets */
+				if (is_intpos(optarg))
+					packet_count=atoi(optarg);
+				else
+					usage("Packet count must be a positive integer");
+				break;
+			}
+	}
+
+	while (optind < argc) {
+		if(is_host(argv[optind])==FALSE) {
+			printf("Invalid host name/address\n\n");
+			print_usage();
+			exit(STATE_UNKNOWN);
+		}
+		if (server_names != NULL)
+			server_names=strscat(server_names," ");
+		server_names=strscat(server_names,argv[optind]);
+		nnames++;
+		optind++;
+	}
+	
+	if (server_names==NULL || nnames < 2)
+		usage("At least 2 hostnames must be supplied\n\n");
+	
+	if (cthresh < 2) 
+		usage("Critical threshold must be at least 2");
+	if (cthresh > nnames)
+		usage("Critical threshold cannot be greater than number of hosts tested");
+	if (wthresh < 1)
+		usage("Warning threshold must be at least 1");
+	if (wthresh > nnames)
+		usage("Warning threshold cannot be greater than number of hosts tested");
+	if(wthresh >= cthresh)
+		usage("Warning threshold must be less than the critical threshold"); 
+	
+	return OK;
+}
+
+
+void print_usage(void)
+{
+	printf("Usage: %s <host_address> <host_address> [<host_address>] ...\n",PROGNAME);
+}
+
+
+
+
+
+void print_help(void)
+{
+
+	print_revision(PROGNAME,"$Revision$");
+
+	printf
+		("Copyright (c) 1999 Didi Rieder (adrieder@sbox.tu-graz.ac.at)\n"
+		 "          (c) 2000 Matthew Grant (matthewg@plain.co.nz)\n"
+		 "This plugin will use the /bin/fping command (from saint) to ping the\n"
+		 "specified hosts for a fast check to see if the Internet is still \n"
+		 "reachable, and the results of the testing aggregated. Note that it\n"
+		 "is necessary to set the suid flag on fping.\n\n");
+
+	print_usage();
+
+  printf
+		("\nOptions:\n"
+		 "-b, --bytes=INTEGER\n"
+		 "   Size of ICMP packet (default: %d)\n"
+		 "-c, --critical=INTEGER (default: %d)\n"
+		 "   critical threshold failure count\n"
+		 "-n, --number=INTEGER\n"
+		 "   Number of ICMP packets to send (default: %d)\n"
+		 "-H, --hostname=HOST\n"
+		 "   Name or IP Address of host to ping (IP Address bypasses name lookup,\n"
+		 "   reducing system load)\n"
+		 "-h, --help\n"
+		 "   Print this help screen\n"
+		 "-N, --name\n"
+		 "   Service name to print in results, defaults to INTERNET\n"
+		 "-p, --pl-threshold\n"
+		 "   Packet loss threshold - specify to turn on packet loss testing\n"
+		 "-r, --rta-threshold\n"
+		 "   Round trip average threshold - specify to turn on RTA testing\n"
+		 "-V, --version\n"
+		 "   Print version information\n"
+		 "-v, --verbose\n"
+		 "   Show details for command-line debugging (do not use with nagios server)\n"
+		 "-w, --warning=INTEGER (default: %d)\n"
+		 "   warning threshold failure count\n",
+		 PACKET_SIZE, CRITICAL_COUNT, PACKET_COUNT, WARNING_COUNT);
+}