/***************************************************************************** * * Monitoring check_fping plugin * * License: GPL * Copyright (c) 2000-2007 Monitoring Plugins Development Team * * Description: * * This file contains the check_disk plugin * * This plugin will use the fping command to ping the specified host for a * fast check * * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * 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, see . * * *****************************************************************************/ const char *progname = "check_fping"; const char *copyright = "2000-2007"; const char *email = "devel@monitoring-plugins.org"; #include "common.h" #include "popen.h" #include "netutils.h" #include "utils.h" #include enum { PACKET_COUNT = 1, PACKET_SIZE = 56, PL = 0, RTA = 1 }; int textscan (char *buf); int process_arguments (int, char **); int get_threshold (char *arg, char *rv[2]); void print_help (void); void print_usage (void); char *server_name = NULL; char *sourceip = NULL; char *sourceif = NULL; int packet_size = PACKET_SIZE; int packet_count = PACKET_COUNT; int target_timeout = 0; int packet_interval = 0; int verbose = FALSE; int cpl; int wpl; double crta; double wrta; int cpl_p = FALSE; int wpl_p = FALSE; bool alive_p = FALSE; int crta_p = FALSE; int wrta_p = FALSE; int main (int argc, char **argv) { /* normally should be int result = STATE_UNKNOWN; */ int status = STATE_UNKNOWN; int result = 0; char *fping_prog = NULL; char *server = NULL; char *command_line = NULL; char *input_buffer = NULL; char *option_string = ""; input_buffer = malloc (MAX_INPUT_BUFFER); setlocale (LC_ALL, ""); bindtextdomain (PACKAGE, LOCALEDIR); textdomain (PACKAGE); /* Parse extra opts if any */ argv=np_extra_opts (&argc, argv, progname); if (process_arguments (argc, argv) == ERROR) usage4 (_("Could not parse arguments")); server = strscpy (server, server_name); /* compose the command */ if (target_timeout) xasprintf(&option_string, "%s-t %d ", option_string, target_timeout); if (packet_interval) xasprintf(&option_string, "%s-p %d ", option_string, packet_interval); if (sourceip) xasprintf(&option_string, "%s-S %s ", option_string, sourceip); if (sourceif) xasprintf(&option_string, "%s-I %s ", option_string, sourceif); #ifdef PATH_TO_FPING6 if (address_family != AF_INET && is_inet6_addr(server)) fping_prog = strdup(PATH_TO_FPING6); else fping_prog = strdup(PATH_TO_FPING); #else fping_prog = strdup(PATH_TO_FPING); #endif xasprintf (&command_line, "%s %s-b %d -c %d %s", fping_prog, option_string, packet_size, packet_count, server); if (verbose) printf ("%s\n", command_line); /* run the command */ child_process = spopen (command_line); if (child_process == NULL) { printf (_("Could not 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); status = max_state (status, textscan (input_buffer)); } /* If we get anything on STDERR, at least set warning */ while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_stderr)) { status = max_state (status, STATE_WARNING); if (verbose) printf ("%s", input_buffer); status = max_state (status, textscan (input_buffer)); } (void) fclose (child_stderr); /* close the pipe */ result = spclose (child_process); if (result) { /* need to use max_state not max */ status = max_state (status, STATE_WARNING); } if (result > 1 ) { status = max_state (status, STATE_UNKNOWN); if (result == 2) { die (STATE_UNKNOWN, _("FPING UNKNOWN - IP address not found\n")); } if (result == 3) { die (STATE_UNKNOWN, _("FPING UNKNOWN - invalid commandline argument\n")); } if (result == 4) { die (STATE_UNKNOWN, _("FPING UNKNOWN - failed system call\n")); } } printf ("FPING %s - %s\n", state_text (status), server_name); return status; } int textscan (char *buf) { char *rtastr = NULL; char *losstr = NULL; char *xmtstr = NULL; double loss; double rta; double xmt; int status = STATE_UNKNOWN; /* stops testing after the first successful reply. */ if (alive_p && strstr(buf, "avg, 0% loss)")) { rtastr = strstr (buf, "ms ("); rtastr = 1 + index(rtastr, '('); rta = strtod(rtastr, NULL); loss=strtod("0",NULL); die (STATE_OK, _("FPING %s - %s (rta=%f ms)|%s\n"), state_text (STATE_OK), server_name,rta, /* No loss since we only waited for the first reply perfdata ("loss", (long int)loss, "%", wpl_p, wpl, cpl_p, cpl, TRUE, 0, TRUE, 100), */ fperfdata ("rta", rta/1.0e3, "s", wrta_p, wrta/1.0e3, crta_p, crta/1.0e3, TRUE, 0, FALSE, 0)); } if (strstr (buf, "not found")) { die (STATE_CRITICAL, _("FPING UNKNOWN - %s not found\n"), server_name); } else if (strstr (buf, "is unreachable") || strstr (buf, "Unreachable")) { die (STATE_CRITICAL, _("FPING CRITICAL - %s is unreachable\n"), "host"); } else if (strstr (buf, "Operation not permitted") || strstr (buf, "No such device") ) { die (STATE_UNKNOWN, _("FPING UNKNOWN - %s parameter error\n"), "host"); } else if (strstr (buf, "is down")) { die (STATE_CRITICAL, _("FPING CRITICAL - %s is down\n"), server_name); } else if (strstr (buf, "is alive")) { status = STATE_OK; } 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); if (cpl_p == TRUE && loss > cpl) status = STATE_CRITICAL; else if (crta_p == TRUE && rta > crta) status = STATE_CRITICAL; else if (wpl_p == TRUE && loss > wpl) status = STATE_WARNING; else if (wrta_p == TRUE && rta > wrta) status = STATE_WARNING; else status = STATE_OK; die (status, _("FPING %s - %s (loss=%.0f%%, rta=%f ms)|%s %s\n"), state_text (status), server_name, loss, rta, perfdata ("loss", (long int)loss, "%", wpl_p, wpl, cpl_p, cpl, TRUE, 0, TRUE, 100), fperfdata ("rta", rta/1.0e3, "s", wrta_p, wrta/1.0e3, crta_p, crta/1.0e3, TRUE, 0, FALSE, 0)); } else if(strstr (buf, "xmt/rcv/%loss") ) { /* no min/max/avg if host was unreachable in fping v2.2.b1 */ /* in v2.4b2: 10.99.0.1 : xmt/rcv/%loss = 0/0/0% */ losstr = strstr (buf, "="); xmtstr = 1 + losstr; xmt = strtod (xmtstr, NULL); if(xmt == 0) die (STATE_CRITICAL, _("FPING CRITICAL - %s is down\n"), server_name); losstr = 1 + strstr (losstr, "/"); losstr = 1 + strstr (losstr, "/"); loss = strtod (losstr, NULL); if (atoi(losstr) == 100) status = STATE_CRITICAL; else if (cpl_p == TRUE && loss > cpl) status = STATE_CRITICAL; else if (wpl_p == TRUE && loss > wpl) status = STATE_WARNING; else status = STATE_OK; /* loss=%.0f%%;%d;%d;0;100 */ die (status, _("FPING %s - %s (loss=%.0f%% )|%s\n"), state_text (status), server_name, loss , perfdata ("loss", (long int)loss, "%", wpl_p, wpl, cpl_p, cpl, TRUE, 0, TRUE, 100)); } else { status = max_state (status, STATE_WARNING); } return status; } /* process command-line arguments */ int process_arguments (int argc, char **argv) { int c; char *rv[2]; int option = 0; static struct option longopts[] = { {"hostname", required_argument, 0, 'H'}, {"sourceip", required_argument, 0, 'S'}, {"sourceif", required_argument, 0, 'I'}, {"critical", required_argument, 0, 'c'}, {"warning", required_argument, 0, 'w'}, {"alive", no_argument, 0, 'a'}, {"bytes", required_argument, 0, 'b'}, {"number", required_argument, 0, 'n'}, {"target-timeout", required_argument, 0, 'T'}, {"interval", required_argument, 0, 'i'}, {"verbose", no_argument, 0, 'v'}, {"version", no_argument, 0, 'V'}, {"help", no_argument, 0, 'h'}, {"use-ipv4", no_argument, 0, '4'}, {"use-ipv6", no_argument, 0, '6'}, {0, 0, 0, 0} }; rv[PL] = NULL; rv[RTA] = NULL; if (argc < 2) return ERROR; if (!is_option (argv[1])) { server_name = argv[1]; argv[1] = argv[0]; argv = &argv[1]; argc--; } while (1) { c = getopt_long (argc, argv, "+hVvaH:S:c:w:b:n:T:i:I:46", longopts, &option); if (c == -1 || c == EOF || c == 1) break; switch (c) { case '?': /* print short usage statement if args not parsable */ usage5 (); case 'a': /* host alive mode */ alive_p = TRUE; break; case 'h': /* help */ print_help (); exit (STATE_UNKNOWN); case 'V': /* version */ print_revision (progname, NP_VERSION); exit (STATE_UNKNOWN); case 'v': /* verbose mode */ verbose = TRUE; break; case 'H': /* hostname */ if (is_host (optarg) == FALSE) { usage2 (_("Invalid hostname/address"), optarg); } server_name = strscpy (server_name, optarg); break; case 'S': /* sourceip */ if (is_host (optarg) == FALSE) { usage2 (_("Invalid hostname/address"), optarg); } sourceip = strscpy (sourceip, optarg); break; case 'I': /* sourceip */ sourceif = strscpy (sourceif, optarg); case '4': /* IPv4 only */ address_family = AF_INET; break; case '6': /* IPv6 only */ #ifdef USE_IPV6 address_family = AF_INET6; #else usage (_("IPv6 support not available\n")); #endif break; case 'c': get_threshold (optarg, rv); if (rv[RTA]) { crta = strtod (rv[RTA], NULL); crta_p = TRUE; rv[RTA] = NULL; } if (rv[PL]) { cpl = atoi (rv[PL]); cpl_p = TRUE; rv[PL] = NULL; } break; case 'w': get_threshold (optarg, rv); if (rv[RTA]) { wrta = strtod (rv[RTA], NULL); wrta_p = TRUE; rv[RTA] = NULL; } if (rv[PL]) { wpl = atoi (rv[PL]); wpl_p = TRUE; rv[PL] = NULL; } 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': /* number of packets */ if (is_intpos (optarg)) packet_count = atoi (optarg); else usage (_("Packet count must be a positive integer")); break; case 'T': /* timeout in msec */ if (is_intpos (optarg)) target_timeout = atoi (optarg); else usage (_("Target timeout must be a positive integer")); break; case 'i': /* interval in msec */ if (is_intpos (optarg)) packet_interval = atoi (optarg); else usage (_("Interval must be a positive integer")); break; } } if (server_name == NULL) usage4 (_("Hostname was not supplied")); return OK; } int get_threshold (char *arg, char *rv[2]) { char *arg1 = NULL; char *arg2 = NULL; arg1 = strscpy (arg1, arg); if (strpbrk (arg1, ",:")) arg2 = 1 + strpbrk (arg1, ",:"); if (arg2) { arg1[strcspn (arg1, ",:")] = 0; if (strstr (arg1, "%") && strstr (arg2, "%")) die (STATE_UNKNOWN, _("%s: Only one threshold may be packet loss (%s)\n"), progname, arg); if (!strstr (arg1, "%") && !strstr (arg2, "%")) die (STATE_UNKNOWN, _("%s: Only one threshold must be packet loss (%s)\n"), progname, arg); } if (arg2 && strstr (arg2, "%")) { rv[PL] = arg2; rv[RTA] = arg1; } else if (arg2) { rv[PL] = arg1; rv[RTA] = arg2; } else if (strstr (arg1, "%")) { rv[PL] = arg1; } else { rv[RTA] = arg1; } return OK; } void print_help (void) { print_revision (progname, NP_VERSION); printf ("Copyright (c) 1999 Didi Rieder \n"); printf (COPYRIGHT, copyright, email); printf ("%s\n", _("This plugin will use the fping command to ping the specified host for a fast check")); printf ("%s\n", _("Note that it is necessary to set the suid flag on fping.")); printf ("\n\n"); print_usage (); printf (UT_HELP_VRSN); printf (UT_EXTRA_OPTS); printf (UT_IPv46); printf (" %s\n", "-H, --hostname=HOST"); printf (" %s\n", _("name or IP Address of host to ping (IP Address bypasses name lookup, reducing system load)")); printf (" %s\n", "-w, --warning=THRESHOLD"); printf (" %s\n", _("warning threshold pair")); printf (" %s\n", "-c, --critical=THRESHOLD"); printf (" %s\n", _("critical threshold pair")); printf (" %s\n", "-a, --alive"); printf (" %s\n", _("Return OK after first successful reply")); printf (" %s\n", "-b, --bytes=INTEGER"); printf (" %s (default: %d)\n", _("size of ICMP packet"),PACKET_SIZE); printf (" %s\n", "-n, --number=INTEGER"); printf (" %s (default: %d)\n", _("number of ICMP packets to send"),PACKET_COUNT); printf (" %s\n", "-T, --target-timeout=INTEGER"); printf (" %s (default: fping's default for -t)\n", _("Target timeout (ms)")); printf (" %s\n", "-i, --interval=INTEGER"); printf (" %s (default: fping's default for -p)\n", _("Interval (ms) between sending packets")); printf (" %s\n", "-S, --sourceip=HOST"); printf (" %s\n", _("name or IP Address of sourceip")); printf (" %s\n", "-I, --sourceif=IF"); printf (" %s\n", _("source interface name")); printf (UT_VERBOSE); printf ("\n"); printf (" %s\n", _("THRESHOLD is ,%% where is the round trip average travel time (ms)")); printf (" %s\n", _("which triggers a WARNING or CRITICAL state, and is the percentage of")); printf (" %s\n", _("packet loss to trigger an alarm state.")); printf ("\n"); printf (" %s\n", _("IPv4 is used by default. Specify -6 to use IPv6.")); printf (UT_SUPPORT); } void print_usage (void) { printf ("%s\n", _("Usage:")); printf (" %s -w limit -c limit [-b size] [-n number] [-T number] [-i number]\n", progname); }