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Merge pull request #2099 from RincewindsHat/refactor/check_ping

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Refactor/check ping
This commit is contained in:
Lorenz Kästle 2025-03-12 17:50:51 +01:00 committed by GitHub
commit 9cb0a6f063
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GPG key ID: B5690EEEBB952194
3 changed files with 346 additions and 238 deletions
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1
plugins/Makefile.am
View file

@ -65,6 +65,7 @@ EXTRA_DIST = t \
check_ntp_peer.d \
check_apt.d \
check_pgsql.d \
check_ping.d \
check_by_ssh.d \
check_smtp.d \
check_mysql.d \

537
plugins/check_ping.c
View file

@ -36,61 +36,52 @@ const char *email = "devel@monitoring-plugins.org";
#include "netutils.h"
#include "popen.h"
#include "utils.h"
#include "check_ping.d/config.h"
#include "../lib/states.h"
#include <signal.h>
#define WARN_DUPLICATES "DUPLICATES FOUND! "
#define UNKNOWN_TRIP_TIME -1.0 /* -1 seconds */
#define WARN_DUPLICATES "DUPLICATES FOUND! "
enum {
UNKNOWN_PACKET_LOSS = 200, /* 200% */
DEFAULT_MAX_PACKETS = 5 /* default no. of ICMP ECHO packets */
};
typedef struct {
int errorcode;
check_ping_config config;
} check_ping_config_wrapper;
static check_ping_config_wrapper process_arguments(int /*argc*/, char ** /*argv*/);
static check_ping_config_wrapper validate_arguments(check_ping_config_wrapper /*config_wrapper*/);
static int process_arguments(int /*argc*/, char ** /*argv*/);
static int get_threshold(char * /*arg*/, float * /*trta*/, int * /*tpl*/);
static int validate_arguments(void);
static int run_ping(const char *cmd, const char *addr);
static int error_scan(char buf[MAX_INPUT_BUFFER], const char *addr);
static int get_threshold(char * /*arg*/, double * /*trta*/, int * /*tpl*/);
typedef struct {
mp_state_enum state;
double round_trip_average;
int packet_loss;
} ping_result;
static ping_result run_ping(const char *cmd, const char *addr, double /*crta*/);
static mp_state_enum error_scan(char buf[MAX_INPUT_BUFFER], const char *addr);
static void print_help(void);
void print_usage(void);
static bool display_html = false;
static int wpl = UNKNOWN_PACKET_LOSS;
static int cpl = UNKNOWN_PACKET_LOSS;
static float wrta = UNKNOWN_TRIP_TIME;
static float crta = UNKNOWN_TRIP_TIME;
static char **addresses = NULL;
static int n_addresses = 0;
static int max_addr = 1;
static int max_packets = -1;
static int verbose = 0;
static float rta = UNKNOWN_TRIP_TIME;
static int pl = UNKNOWN_PACKET_LOSS;
static char *warn_text;
int main(int argc, char **argv) {
char *cmd = NULL;
char *rawcmd = NULL;
int result = STATE_UNKNOWN;
int this_result = STATE_UNKNOWN;
int i;
setlocale(LC_ALL, "");
setlocale(LC_NUMERIC, "C");
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
addresses = malloc(sizeof(char *) * max_addr);
addresses[0] = NULL;
/* Parse extra opts if any */
argv = np_extra_opts(&argc, argv, progname);
if (process_arguments(argc, argv) == ERROR)
check_ping_config_wrapper tmp_config = process_arguments(argc, argv);
if (tmp_config.errorcode == ERROR) {
usage4(_("Could not parse arguments"));
}
const check_ping_config config = tmp_config.config;
/* Set signal handling and alarm */
if (signal(SIGALRM, popen_timeout_alarm_handler) == SIG_ERR) {
@ -105,71 +96,86 @@ int main(int argc, char **argv) {
alarm(timeout_interval);
#endif
for (i = 0; i < n_addresses; i++) {
int result = STATE_UNKNOWN;
char *rawcmd = NULL;
for (size_t i = 0; i < config.n_addresses; i++) {
#ifdef PING6_COMMAND
if (address_family != AF_INET && is_inet6_addr(addresses[i]))
if (address_family != AF_INET && is_inet6_addr(config.addresses[i])) {
rawcmd = strdup(PING6_COMMAND);
else
} else {
rawcmd = strdup(PING_COMMAND);
}
#else
rawcmd = strdup(PING_COMMAND);
#endif
/* does the host address of number of packets argument come first? */
char *cmd = NULL;
/* does the host address of number of packets argument come first? */
#ifdef PING_PACKETS_FIRST
# ifdef PING_HAS_TIMEOUT
xasprintf(&cmd, rawcmd, timeout_interval, max_packets, addresses[i]);
xasprintf(&cmd, rawcmd, timeout_interval, config.max_packets, config.addresses[i]);
# else
xasprintf(&cmd, rawcmd, max_packets, addresses[i]);
xasprintf(&cmd, rawcmd, config.max_packets, addresses[i]);
# endif
#else
xasprintf(&cmd, rawcmd, addresses[i], max_packets);
xasprintf(&cmd, rawcmd, addresses[i], config.max_packets);
#endif
if (verbose >= 2)
if (verbose >= 2) {
printf("CMD: %s\n", cmd);
}
/* run the command */
this_result = run_ping(cmd, addresses[i]);
if (pl == UNKNOWN_PACKET_LOSS || rta < 0.0) {
ping_result pinged = run_ping(cmd, config.addresses[i], config.crta);
if (pinged.packet_loss == UNKNOWN_PACKET_LOSS || pinged.round_trip_average < 0.0) {
printf("%s\n", cmd);
die(STATE_UNKNOWN, _("CRITICAL - Could not interpret output from ping command\n"));
}
if (pl >= cpl || rta >= crta || rta < 0)
this_result = STATE_CRITICAL;
else if (pl >= wpl || rta >= wrta)
this_result = STATE_WARNING;
else if (pl >= 0 && rta >= 0)
this_result = max_state(STATE_OK, this_result);
if (pinged.packet_loss >= config.cpl || pinged.round_trip_average >= config.crta || pinged.round_trip_average < 0) {
pinged.state = STATE_CRITICAL;
} else if (pinged.packet_loss >= config.wpl || pinged.round_trip_average >= config.wrta) {
pinged.state = STATE_WARNING;
} else if (pinged.packet_loss >= 0 && pinged.round_trip_average >= 0) {
pinged.state = max_state(STATE_OK, pinged.state);
}
if (n_addresses > 1 && this_result != STATE_UNKNOWN)
die(STATE_OK, "%s is alive\n", addresses[i]);
if (config.n_addresses > 1 && pinged.state != STATE_UNKNOWN) {
die(STATE_OK, "%s is alive\n", config.addresses[i]);
}
if (display_html == true)
printf("<A HREF='%s/traceroute.cgi?%s'>", CGIURL, addresses[i]);
if (pl == 100)
printf(_("PING %s - %sPacket loss = %d%%"), state_text(this_result), warn_text, pl);
else
printf(_("PING %s - %sPacket loss = %d%%, RTA = %2.2f ms"), state_text(this_result), warn_text, pl, rta);
if (display_html == true)
if (config.display_html) {
printf("<A HREF='%s/traceroute.cgi?%s'>", CGIURL, config.addresses[i]);
}
if (pinged.packet_loss == 100) {
printf(_("PING %s - %sPacket loss = %d%%"), state_text(pinged.state), warn_text, pinged.packet_loss);
} else {
printf(_("PING %s - %sPacket loss = %d%%, RTA = %2.2f ms"), state_text(pinged.state), warn_text, pinged.packet_loss,
pinged.round_trip_average);
}
if (config.display_html) {
printf("</A>");
}
/* Print performance data */
if (pl != 100) {
printf("|%s",
fperfdata("rta", (double)rta, "ms", wrta > 0 ? true : false, wrta, crta > 0 ? true : false, crta, true, 0, false, 0));
if (pinged.packet_loss != 100) {
printf("|%s", fperfdata("rta", pinged.round_trip_average, "ms", (bool)(config.wrta > 0), config.wrta, (bool)(config.crta > 0),
config.crta, true, 0, false, 0));
} else {
printf("| rta=U;%f;%f;;", wrta, crta);
printf("| rta=U;%f;%f;;", config.wrta, config.crta);
}
printf(" %s\n", perfdata("pl", (long)pl, "%", wpl > 0 ? true : false, wpl, cpl > 0 ? true : false, cpl, true, 0, false, 0));
if (verbose >= 2)
printf("%f:%d%% %f:%d%%\n", wrta, wpl, crta, cpl);
printf(" %s\n", perfdata("pl", (long)pinged.packet_loss, "%", (bool)(config.wpl > 0), config.wpl, (bool)(config.cpl > 0),
config.cpl, true, 0, false, 0));
result = max_state(result, this_result);
if (verbose >= 2) {
printf("%f:%d%% %f:%d%%\n", config.wrta, config.wpl, config.crta, config.cpl);
}
result = max_state(result, pinged.state);
free(rawcmd);
free(cmd);
}
@ -178,11 +184,7 @@ int main(int argc, char **argv) {
}
/* process command-line arguments */
int process_arguments(int argc, char **argv) {
int c = 1;
char *ptr;
int option = 0;
check_ping_config_wrapper process_arguments(int argc, char **argv) {
static struct option longopts[] = {STD_LONG_OPTS,
{"packets", required_argument, 0, 'p'},
{"nohtml", no_argument, 0, 'n'},
@ -191,23 +193,35 @@ int process_arguments(int argc, char **argv) {
{"use-ipv6", no_argument, 0, '6'},
{0, 0, 0, 0}};
if (argc < 2)
return ERROR;
check_ping_config_wrapper result = {
.errorcode = OK,
.config = check_ping_config_init(),
};
for (c = 1; c < argc; c++) {
if (strcmp("-to", argv[c]) == 0)
strcpy(argv[c], "-t");
if (strcmp("-nohtml", argv[c]) == 0)
strcpy(argv[c], "-n");
if (argc < 2) {
result.errorcode = ERROR;
return result;
}
while (1) {
c = getopt_long(argc, argv, "VvhnL46t:c:w:H:p:", longopts, &option);
for (int index = 1; index < argc; index++) {
if (strcmp("-to", argv[index]) == 0) {
strcpy(argv[index], "-t");
}
if (strcmp("-nohtml", argv[index]) == 0) {
strcpy(argv[index], "-n");
}
}
if (c == -1 || c == EOF)
int option = 0;
size_t max_addr = MAX_ADDR_START;
while (true) {
int option_index = getopt_long(argc, argv, "VvhnL46t:c:w:H:p:", longopts, &option);
if (option_index == -1 || option_index == EOF) {
break;
}
switch (c) {
switch (option_index) {
case '?': /* usage */
usage5();
case 'h': /* help */
@ -234,17 +248,18 @@ int process_arguments(int argc, char **argv) {
usage(_("IPv6 support not available\n"));
#endif
break;
case 'H': /* hostname */
ptr = optarg;
while (1) {
n_addresses++;
if (n_addresses > max_addr) {
case 'H': /* hostname */ {
char *ptr = optarg;
while (true) {
result.config.n_addresses++;
if (result.config.n_addresses > max_addr) {
max_addr *= 2;
addresses = realloc(addresses, sizeof(char *) * max_addr);
if (addresses == NULL)
result.config.addresses = realloc(result.config.addresses, sizeof(char *) * max_addr);
if (result.config.addresses == NULL) {
die(STATE_UNKNOWN, _("Could not realloc() addresses\n"));
}
}
addresses[n_addresses - 1] = ptr;
result.config.addresses[result.config.n_addresses - 1] = ptr;
if ((ptr = index(ptr, ','))) {
strcpy(ptr, "");
ptr += sizeof(char);
@ -252,203 +267,248 @@ int process_arguments(int argc, char **argv) {
break;
}
}
break;
} break;
case 'p': /* number of packets to send */
if (is_intnonneg(optarg))
max_packets = atoi(optarg);
else
if (is_intnonneg(optarg)) {
result.config.max_packets = atoi(optarg);
} else {
usage2(_("<max_packets> (%s) must be a non-negative number\n"), optarg);
}
break;
case 'n': /* no HTML */
display_html = false;
result.config.display_html = false;
break;
case 'L': /* show HTML */
display_html = true;
result.config.display_html = true;
break;
case 'c':
get_threshold(optarg, &crta, &cpl);
get_threshold(optarg, &result.config.crta, &result.config.cpl);
break;
case 'w':
get_threshold(optarg, &wrta, &wpl);
get_threshold(optarg, &result.config.wrta, &result.config.wpl);
break;
}
}
c = optind;
if (c == argc)
return validate_arguments();
int arg_counter = optind;
if (arg_counter == argc) {
return validate_arguments(result);
}
if (addresses[0] == NULL) {
if (!is_host(argv[c])) {
usage2(_("Invalid hostname/address"), argv[c]);
if (result.config.addresses[0] == NULL) {
if (!is_host(argv[arg_counter])) {
usage2(_("Invalid hostname/address"), argv[arg_counter]);
} else {
addresses[0] = argv[c++];
n_addresses++;
if (c == argc)
return validate_arguments();
result.config.addresses[0] = argv[arg_counter++];
result.config.n_addresses++;
if (arg_counter == argc) {
return validate_arguments(result);
}
}
}
if (wpl == UNKNOWN_PACKET_LOSS) {
if (!is_intpercent(argv[c])) {
printf(_("<wpl> (%s) must be an integer percentage\n"), argv[c]);
return ERROR;
} else {
wpl = atoi(argv[c++]);
if (c == argc)
return validate_arguments();
if (result.config.wpl == UNKNOWN_PACKET_LOSS) {
if (!is_intpercent(argv[arg_counter])) {
printf(_("<wpl> (%s) must be an integer percentage\n"), argv[arg_counter]);
result.errorcode = ERROR;
return result;
}
result.config.wpl = atoi(argv[arg_counter++]);
if (arg_counter == argc) {
return validate_arguments(result);
}
}
if (cpl == UNKNOWN_PACKET_LOSS) {
if (!is_intpercent(argv[c])) {
printf(_("<cpl> (%s) must be an integer percentage\n"), argv[c]);
return ERROR;
} else {
cpl = atoi(argv[c++]);
if (c == argc)
return validate_arguments();
if (result.config.cpl == UNKNOWN_PACKET_LOSS) {
if (!is_intpercent(argv[arg_counter])) {
printf(_("<cpl> (%s) must be an integer percentage\n"), argv[arg_counter]);
result.errorcode = ERROR;
return result;
}
result.config.cpl = atoi(argv[arg_counter++]);
if (arg_counter == argc) {
return validate_arguments(result);
}
}
if (wrta < 0.0) {
if (is_negative(argv[c])) {
printf(_("<wrta> (%s) must be a non-negative number\n"), argv[c]);
return ERROR;
} else {
wrta = atof(argv[c++]);
if (c == argc)
return validate_arguments();
if (result.config.wrta < 0.0) {
if (is_negative(argv[arg_counter])) {
printf(_("<wrta> (%s) must be a non-negative number\n"), argv[arg_counter]);
result.errorcode = ERROR;
return result;
}
result.config.wrta = atof(argv[arg_counter++]);
if (arg_counter == argc) {
return validate_arguments(result);
}
}
if (crta < 0.0) {
if (is_negative(argv[c])) {
printf(_("<crta> (%s) must be a non-negative number\n"), argv[c]);
return ERROR;
} else {
crta = atof(argv[c++]);
if (c == argc)
return validate_arguments();
if (result.config.crta < 0.0) {
if (is_negative(argv[arg_counter])) {
printf(_("<crta> (%s) must be a non-negative number\n"), argv[arg_counter]);
result.errorcode = ERROR;
return result;
}
result.config.crta = atof(argv[arg_counter++]);
if (arg_counter == argc) {
return validate_arguments(result);
}
}
if (max_packets == -1) {
if (is_intnonneg(argv[c])) {
max_packets = atoi(argv[c++]);
if (result.config.max_packets == -1) {
if (is_intnonneg(argv[arg_counter])) {
result.config.max_packets = atoi(argv[arg_counter++]);
} else {
printf(_("<max_packets> (%s) must be a non-negative number\n"), argv[c]);
return ERROR;
printf(_("<max_packets> (%s) must be a non-negative number\n"), argv[arg_counter]);
result.errorcode = ERROR;
return result;
}
}
return validate_arguments();
return validate_arguments(result);
}
int get_threshold(char *arg, float *trta, int *tpl) {
if (is_intnonneg(arg) && sscanf(arg, "%f", trta) == 1)
int get_threshold(char *arg, double *trta, int *tpl) {
if (is_intnonneg(arg) && sscanf(arg, "%lf", trta) == 1) {
return OK;
else if (strpbrk(arg, ",:") && strstr(arg, "%") && sscanf(arg, "%f%*[:,]%d%%", trta, tpl) == 2)
}
if (strpbrk(arg, ",:") && strstr(arg, "%") && sscanf(arg, "%lf%*[:,]%d%%", trta, tpl) == 2) {
return OK;
else if (strstr(arg, "%") && sscanf(arg, "%d%%", tpl) == 1)
}
if (strstr(arg, "%") && sscanf(arg, "%d%%", tpl) == 1) {
return OK;
}
usage2(_("%s: Warning threshold must be integer or percentage!\n\n"), arg);
return STATE_UNKNOWN;
}
int validate_arguments() {
float max_seconds;
int i;
if (wrta < 0.0) {
check_ping_config_wrapper validate_arguments(check_ping_config_wrapper config_wrapper) {
if (config_wrapper.config.wrta < 0.0) {
printf(_("<wrta> was not set\n"));
return ERROR;
} else if (crta < 0.0) {
config_wrapper.errorcode = ERROR;
return config_wrapper;
}
if (config_wrapper.config.crta < 0.0) {
printf(_("<crta> was not set\n"));
return ERROR;
} else if (wpl == UNKNOWN_PACKET_LOSS) {
config_wrapper.errorcode = ERROR;
return config_wrapper;
}
if (config_wrapper.config.wpl == UNKNOWN_PACKET_LOSS) {
printf(_("<wpl> was not set\n"));
return ERROR;
} else if (cpl == UNKNOWN_PACKET_LOSS) {
config_wrapper.errorcode = ERROR;
return config_wrapper;
}
if (config_wrapper.config.cpl == UNKNOWN_PACKET_LOSS) {
printf(_("<cpl> was not set\n"));
return ERROR;
} else if (wrta > crta) {
printf(_("<wrta> (%f) cannot be larger than <crta> (%f)\n"), wrta, crta);
return ERROR;
} else if (wpl > cpl) {
printf(_("<wpl> (%d) cannot be larger than <cpl> (%d)\n"), wpl, cpl);
return ERROR;
config_wrapper.errorcode = ERROR;
return config_wrapper;
}
if (max_packets == -1)
max_packets = DEFAULT_MAX_PACKETS;
max_seconds = crta / 1000.0 * max_packets + max_packets;
if (max_seconds > timeout_interval)
timeout_interval = (int)max_seconds;
for (i = 0; i < n_addresses; i++) {
if (!is_host(addresses[i]))
usage2(_("Invalid hostname/address"), addresses[i]);
if (config_wrapper.config.wrta > config_wrapper.config.crta) {
printf(_("<wrta> (%f) cannot be larger than <crta> (%f)\n"), config_wrapper.config.wrta, config_wrapper.config.crta);
config_wrapper.errorcode = ERROR;
return config_wrapper;
}
if (n_addresses == 0) {
if (config_wrapper.config.wpl > config_wrapper.config.cpl) {
printf(_("<wpl> (%d) cannot be larger than <cpl> (%d)\n"), config_wrapper.config.wpl, config_wrapper.config.cpl);
config_wrapper.errorcode = ERROR;
return config_wrapper;
}
if (config_wrapper.config.max_packets == -1) {
config_wrapper.config.max_packets = DEFAULT_MAX_PACKETS;
}
double max_seconds = (config_wrapper.config.crta / 1000.0 * config_wrapper.config.max_packets) + config_wrapper.config.max_packets;
if (max_seconds > timeout_interval) {
timeout_interval = (unsigned int)max_seconds;
}
for (size_t i = 0; i < config_wrapper.config.n_addresses; i++) {
if (!is_host(config_wrapper.config.addresses[i])) {
usage2(_("Invalid hostname/address"), config_wrapper.config.addresses[i]);
}
}
if (config_wrapper.config.n_addresses == 0) {
usage(_("You must specify a server address or host name"));
}
return OK;
return config_wrapper;
}
int run_ping(const char *cmd, const char *addr) {
char buf[MAX_INPUT_BUFFER];
int result = STATE_UNKNOWN;
int match;
if ((child_process = spopen(cmd)) == NULL)
ping_result run_ping(const char *cmd, const char *addr, double crta) {
if ((child_process = spopen(cmd)) == NULL) {
die(STATE_UNKNOWN, _("Could not open pipe: %s\n"), cmd);
}
child_stderr = fdopen(child_stderr_array[fileno(child_process)], "r");
if (child_stderr == NULL)
if (child_stderr == NULL) {
printf(_("Cannot open stderr for %s\n"), cmd);
}
char buf[MAX_INPUT_BUFFER];
ping_result result = {
.state = STATE_UNKNOWN,
.packet_loss = UNKNOWN_PACKET_LOSS,
.round_trip_average = UNKNOWN_TRIP_TIME,
};
while (fgets(buf, MAX_INPUT_BUFFER - 1, child_process)) {
if (verbose >= 3)
if (verbose >= 3) {
printf("Output: %s", buf);
}
result = max_state(result, error_scan(buf, addr));
result.state = max_state(result.state, error_scan(buf, addr));
/* get the percent loss statistics */
match = 0;
if ((sscanf(buf, "%*d packets transmitted, %*d packets received, +%*d errors, %d%% packet loss%n", &pl, &match) && match) ||
(sscanf(buf, "%*d packets transmitted, %*d packets received, +%*d duplicates, %d%% packet loss%n", &pl, &match) && match) ||
(sscanf(buf, "%*d packets transmitted, %*d received, +%*d duplicates, %d%% packet loss%n", &pl, &match) && match) ||
(sscanf(buf, "%*d packets transmitted, %*d packets received, %d%% packet loss%n", &pl, &match) && match) ||
(sscanf(buf, "%*d packets transmitted, %*d packets received, %d%% loss, time%n", &pl, &match) && match) ||
(sscanf(buf, "%*d packets transmitted, %*d received, %d%% loss, time%n", &pl, &match) && match) ||
(sscanf(buf, "%*d packets transmitted, %*d received, %d%% packet loss, time%n", &pl, &match) && match) ||
(sscanf(buf, "%*d packets transmitted, %*d received, +%*d errors, %d%% packet loss%n", &pl, &match) && match) ||
(sscanf(buf, "%*d packets transmitted %*d received, +%*d errors, %d%% packet loss%n", &pl, &match) && match) ||
(sscanf(buf, "%*[^(](%d%% %*[^)])%n", &pl, &match) && match))
int match = 0;
if ((sscanf(buf, "%*d packets transmitted, %*d packets received, +%*d errors, %d%% packet loss%n", &result.packet_loss, &match) ==
1 &&
match) ||
(sscanf(buf, "%*d packets transmitted, %*d packets received, +%*d duplicates, %d%% packet loss%n", &result.packet_loss,
&match) == 1 &&
match) ||
(sscanf(buf, "%*d packets transmitted, %*d received, +%*d duplicates, %d%% packet loss%n", &result.packet_loss, &match) == 1 &&
match) ||
(sscanf(buf, "%*d packets transmitted, %*d packets received, %d%% packet loss%n", &result.packet_loss, &match) == 1 && match) ||
(sscanf(buf, "%*d packets transmitted, %*d packets received, %d%% loss, time%n", &result.packet_loss, &match) == 1 && match) ||
(sscanf(buf, "%*d packets transmitted, %*d received, %d%% loss, time%n", &result.packet_loss, &match) == 1 && match) ||
(sscanf(buf, "%*d packets transmitted, %*d received, %d%% packet loss, time%n", &result.packet_loss, &match) == 1 && match) ==
1 ||
(sscanf(buf, "%*d packets transmitted, %*d received, +%*d errors, %d%% packet loss%n", &result.packet_loss, &match) == 1 &&
match) ||
(sscanf(buf, "%*d packets transmitted %*d received, +%*d errors, %d%% packet loss%n", &result.packet_loss, &match) == 1 &&
match) ||
(sscanf(buf, "%*[^(](%d%% %*[^)])%n", &result.packet_loss, &match) == 1 && match)) {
continue;
}
/* get the round trip average */
else if ((sscanf(buf, "round-trip min/avg/max = %*f/%f/%*f%n", &rta, &match) && match) ||
(sscanf(buf, "round-trip min/avg/max/mdev = %*f/%f/%*f/%*f%n", &rta, &match) && match) ||
(sscanf(buf, "round-trip min/avg/max/sdev = %*f/%f/%*f/%*f%n", &rta, &match) && match) ||
(sscanf(buf, "round-trip min/avg/max/stddev = %*f/%f/%*f/%*f%n", &rta, &match) && match) ||
(sscanf(buf, "round-trip min/avg/max/std-dev = %*f/%f/%*f/%*f%n", &rta, &match) && match) ||
(sscanf(buf, "round-trip (ms) min/avg/max = %*f/%f/%*f%n", &rta, &match) && match) ||
(sscanf(buf, "round-trip (ms) min/avg/max/stddev = %*f/%f/%*f/%*f%n", &rta, &match) && match) ||
(sscanf(buf, "rtt min/avg/max/mdev = %*f/%f/%*f/%*f ms%n", &rta, &match) && match) ||
(sscanf(buf, "%*[^=] = %*fms, %*[^=] = %*fms, %*[^=] = %fms%n", &rta, &match) && match))
if ((sscanf(buf, "round-trip min/avg/max = %*f/%lf/%*f%n", &result.round_trip_average, &match) == 1 && match) ||
(sscanf(buf, "round-trip min/avg/max/mdev = %*f/%lf/%*f/%*f%n", &result.round_trip_average, &match) == 1 && match) ||
(sscanf(buf, "round-trip min/avg/max/sdev = %*f/%lf/%*f/%*f%n", &result.round_trip_average, &match) == 1 && match) ||
(sscanf(buf, "round-trip min/avg/max/stddev = %*f/%lf/%*f/%*f%n", &result.round_trip_average, &match) == 1 && match) ||
(sscanf(buf, "round-trip min/avg/max/std-dev = %*f/%lf/%*f/%*f%n", &result.round_trip_average, &match) == 1 && match) ||
(sscanf(buf, "round-trip (ms) min/avg/max = %*f/%lf/%*f%n", &result.round_trip_average, &match) == 1 && match) ||
(sscanf(buf, "round-trip (ms) min/avg/max/stddev = %*f/%lf/%*f/%*f%n", &result.round_trip_average, &match) == 1 && match) ||
(sscanf(buf, "rtt min/avg/max/mdev = %*f/%lf/%*f/%*f ms%n", &result.round_trip_average, &match) == 1 && match) ||
(sscanf(buf, "%*[^=] = %*fms, %*[^=] = %*fms, %*[^=] = %lfms%n", &result.round_trip_average, &match) == 1 && match)) {
continue;
}
}
/* this is needed because there is no rta if all packets are lost */
if (pl == 100)
rta = crta;
if (result.packet_loss == 100) {
result.round_trip_average = crta;
}
/* check stderr, setting at least WARNING if there is output here */
/* Add warning into warn_text */
@ -459,8 +519,8 @@ int run_ping(const char *cmd, const char *addr) {
if (verbose >= 3) {
printf("Got stderr: %s", buf);
}
if ((result = error_scan(buf, addr)) == STATE_OK) {
result = STATE_WARNING;
if ((result.state = error_scan(buf, addr)) == STATE_OK) {
result.state = STATE_WARNING;
if (warn_text == NULL) {
warn_text = strdup(_("System call sent warnings to stderr "));
} else {
@ -474,43 +534,46 @@ int run_ping(const char *cmd, const char *addr) {
spclose(child_process);
if (warn_text == NULL)
if (warn_text == NULL) {
warn_text = strdup("");
}
return result;
}
int error_scan(char buf[MAX_INPUT_BUFFER], const char *addr) {
if (strstr(buf, "Network is unreachable") || strstr(buf, "Destination Net Unreachable") || strstr(buf, "No route"))
mp_state_enum error_scan(char buf[MAX_INPUT_BUFFER], const char *addr) {
if (strstr(buf, "Network is unreachable") || strstr(buf, "Destination Net Unreachable") || strstr(buf, "No route")) {
die(STATE_CRITICAL, _("CRITICAL - Network Unreachable (%s)\n"), addr);
else if (strstr(buf, "Destination Host Unreachable") || strstr(buf, "Address unreachable"))
} else if (strstr(buf, "Destination Host Unreachable") || strstr(buf, "Address unreachable")) {
die(STATE_CRITICAL, _("CRITICAL - Host Unreachable (%s)\n"), addr);
else if (strstr(buf, "Destination Port Unreachable") || strstr(buf, "Port unreachable"))
} else if (strstr(buf, "Destination Port Unreachable") || strstr(buf, "Port unreachable")) {
die(STATE_CRITICAL, _("CRITICAL - Bogus ICMP: Port Unreachable (%s)\n"), addr);
else if (strstr(buf, "Destination Protocol Unreachable"))
} else if (strstr(buf, "Destination Protocol Unreachable")) {
die(STATE_CRITICAL, _("CRITICAL - Bogus ICMP: Protocol Unreachable (%s)\n"), addr);
else if (strstr(buf, "Destination Net Prohibited"))
} else if (strstr(buf, "Destination Net Prohibited")) {
die(STATE_CRITICAL, _("CRITICAL - Network Prohibited (%s)\n"), addr);
else if (strstr(buf, "Destination Host Prohibited"))
} else if (strstr(buf, "Destination Host Prohibited")) {
die(STATE_CRITICAL, _("CRITICAL - Host Prohibited (%s)\n"), addr);
else if (strstr(buf, "Packet filtered") || strstr(buf, "Administratively prohibited"))
} else if (strstr(buf, "Packet filtered") || strstr(buf, "Administratively prohibited")) {
die(STATE_CRITICAL, _("CRITICAL - Packet Filtered (%s)\n"), addr);
else if (strstr(buf, "unknown host"))
} else if (strstr(buf, "unknown host")) {
die(STATE_CRITICAL, _("CRITICAL - Host not found (%s)\n"), addr);
else if (strstr(buf, "Time to live exceeded") || strstr(buf, "Time exceeded"))
} else if (strstr(buf, "Time to live exceeded") || strstr(buf, "Time exceeded")) {
die(STATE_CRITICAL, _("CRITICAL - Time to live exceeded (%s)\n"), addr);
else if (strstr(buf, "Destination unreachable: "))
} else if (strstr(buf, "Destination unreachable: ")) {
die(STATE_CRITICAL, _("CRITICAL - Destination Unreachable (%s)\n"), addr);
if (strstr(buf, "(DUP!)") || strstr(buf, "DUPLICATES FOUND")) {
if (warn_text == NULL)
warn_text = strdup(_(WARN_DUPLICATES));
else if (!strstr(warn_text, _(WARN_DUPLICATES)) && xasprintf(&warn_text, "%s %s", warn_text, _(WARN_DUPLICATES)) == -1)
die(STATE_UNKNOWN, _("Unable to realloc warn_text\n"));
return (STATE_WARNING);
}
return (STATE_OK);
if (strstr(buf, "(DUP!)") || strstr(buf, "DUPLICATES FOUND")) {
if (warn_text == NULL) {
warn_text = strdup(_(WARN_DUPLICATES));
} else if (!strstr(warn_text, _(WARN_DUPLICATES)) && xasprintf(&warn_text, "%s %s", warn_text, _(WARN_DUPLICATES)) == -1) {
die(STATE_UNKNOWN, _("Unable to realloc warn_text\n"));
}
return STATE_WARNING;
}
return STATE_OK;
}
void print_help(void) {
@ -551,9 +614,7 @@ void print_help(void) {
printf("\n");
printf("%s\n", _("This plugin uses the ping command to probe the specified host for packet loss"));
printf("%s\n", _("(percentage) and round trip average (milliseconds). It can produce HTML output"));
printf("%s\n", _("linking to a traceroute CGI contributed by Ian Cass. The CGI can be found in"));
printf("%s\n", _("the contrib area of the downloads section at http://www.nagios.org/"));
printf("%s\n", _("(percentage) and round trip average (milliseconds). It can produce HTML output."));
printf(UT_SUPPORT);
}

46
plugins/check_ping.d/config.h Normal file
View file

@ -0,0 +1,46 @@
#pragma once
#include "../../config.h"
#include <stddef.h>
#include <stdlib.h>
enum {
UNKNOWN_PACKET_LOSS = 200, /* 200% */
DEFAULT_MAX_PACKETS = 5 /* default no. of ICMP ECHO packets */
};
#define UNKNOWN_TRIP_TIME -1.0 /* -1 seconds */
#define MAX_ADDR_START 1
typedef struct {
bool display_html;
int max_packets;
char **addresses;
size_t n_addresses;
int wpl;
int cpl;
double wrta;
double crta;
} check_ping_config;
check_ping_config check_ping_config_init() {
check_ping_config tmp = {
.display_html = false,
.max_packets = -1,
.addresses = NULL,
.n_addresses = 0,
.wpl = UNKNOWN_PACKET_LOSS,
.cpl = UNKNOWN_PACKET_LOSS,
.wrta = UNKNOWN_TRIP_TIME,
.crta = UNKNOWN_TRIP_TIME,
};
tmp.addresses = calloc(MAX_ADDR_START, sizeof(char *));
tmp.addresses[0] = NULL;
return tmp;
}