diff options
Diffstat (limited to 'plugins/check_swap.c')
| -rw-r--r-- | plugins/check_swap.c | 152 |
1 files changed, 115 insertions, 37 deletions
diff --git a/plugins/check_swap.c b/plugins/check_swap.c index bc90a90b..dbf53a00 100644 --- a/plugins/check_swap.c +++ b/plugins/check_swap.c | |||
| @@ -28,6 +28,9 @@ | |||
| 28 | *****************************************************************************/ | 28 | *****************************************************************************/ |
| 29 | 29 | ||
| 30 | #include "common.h" | 30 | #include "common.h" |
| 31 | #include "output.h" | ||
| 32 | #include "states.h" | ||
| 33 | #include <limits.h> | ||
| 31 | #ifdef HAVE_DECL_SWAPCTL | 34 | #ifdef HAVE_DECL_SWAPCTL |
| 32 | # ifdef HAVE_SYS_PARAM_H | 35 | # ifdef HAVE_SYS_PARAM_H |
| 33 | # include <sys/param.h> | 36 | # include <sys/param.h> |
| @@ -69,8 +72,6 @@ int main(int argc, char **argv) { | |||
| 69 | bindtextdomain(PACKAGE, LOCALEDIR); | 72 | bindtextdomain(PACKAGE, LOCALEDIR); |
| 70 | textdomain(PACKAGE); | 73 | textdomain(PACKAGE); |
| 71 | 74 | ||
| 72 | char *status = strdup(""); | ||
| 73 | |||
| 74 | /* Parse extra opts if any */ | 75 | /* Parse extra opts if any */ |
| 75 | argv = np_extra_opts(&argc, argv, progname); | 76 | argv = np_extra_opts(&argc, argv, progname); |
| 76 | 77 | ||
| @@ -89,60 +90,112 @@ int main(int argc, char **argv) { | |||
| 89 | exit(STATE_UNKNOWN); | 90 | exit(STATE_UNKNOWN); |
| 90 | } | 91 | } |
| 91 | 92 | ||
| 93 | if (verbose) { | ||
| 94 | printf("Swap retrieval result:\n" | ||
| 95 | "\tFree: %llu\n" | ||
| 96 | "\tUsed: %llu\n" | ||
| 97 | "\tTotal: %llu\n", | ||
| 98 | data.metrics.free, data.metrics.used, data.metrics.total); | ||
| 99 | } | ||
| 100 | |||
| 92 | double percent_used; | 101 | double percent_used; |
| 102 | mp_check overall = mp_check_init(); | ||
| 103 | if (config.output_format_is_set) { | ||
| 104 | mp_set_format(config.output_format); | ||
| 105 | } | ||
| 106 | mp_subcheck sc1 = mp_subcheck_init(); | ||
| 107 | sc1 = mp_set_subcheck_default_state(sc1, STATE_OK); | ||
| 108 | |||
| 93 | /* if total_swap_mb == 0, let's not divide by 0 */ | 109 | /* if total_swap_mb == 0, let's not divide by 0 */ |
| 94 | if (data.metrics.total != 0) { | 110 | if (data.metrics.total != 0) { |
| 95 | percent_used = HUNDRED_PERCENT * ((double)data.metrics.used) / ((double)data.metrics.total); | 111 | percent_used = HUNDRED_PERCENT * ((double)data.metrics.used) / ((double)data.metrics.total); |
| 96 | } else { | 112 | } else { |
| 97 | printf(_("SWAP %s - Swap is either disabled, not present, or of zero " | 113 | sc1 = mp_set_subcheck_state(sc1, config.no_swap_state); |
| 98 | "size."), | 114 | sc1.output = (char *)_("Swap is either disabled, not present, or of zero size."); |
| 99 | state_text(data.statusCode)); | 115 | |
| 100 | exit(config.no_swap_state); | 116 | mp_add_subcheck_to_check(&overall, sc1); |
| 117 | mp_exit(overall); | ||
| 101 | } | 118 | } |
| 102 | 119 | ||
| 103 | if (verbose) { | 120 | if (verbose) { |
| 104 | printf("Computed usage percentage: %g\n", percent_used); | 121 | printf("Computed usage percentage: %g\n", percent_used); |
| 105 | } | 122 | } |
| 106 | 123 | ||
| 107 | uint64_t warn_print = config.warn.value; | 124 | mp_perfdata pd = perfdata_init(); |
| 108 | if (config.warn.is_percentage) { | 125 | pd.label = "swap"; |
| 109 | warn_print = config.warn.value * (data.metrics.total / HUNDRED_PERCENT); | 126 | pd = mp_set_pd_value(pd, data.metrics.free); |
| 127 | pd.uom = "B"; | ||
| 128 | |||
| 129 | if (config.warn_is_set) { | ||
| 130 | uint64_t warn_print = config.warn.value; | ||
| 131 | if (config.warn.is_percentage) { | ||
| 132 | warn_print = config.warn.value * (data.metrics.total / HUNDRED_PERCENT); | ||
| 133 | } | ||
| 134 | |||
| 135 | mp_perfdata_value warn_pd = mp_create_pd_value(warn_print); | ||
| 136 | |||
| 137 | mp_range warn_range = mp_range_init(); | ||
| 138 | warn_range.end_infinity = false; | ||
| 139 | warn_range.end = warn_pd; | ||
| 140 | |||
| 141 | pd.warn = warn_range; | ||
| 142 | pd.warn_present = true; | ||
| 110 | } | 143 | } |
| 111 | 144 | ||
| 112 | uint64_t crit_print = config.crit.value; | 145 | if (config.crit_is_set) { |
| 113 | if (config.crit.is_percentage) { | 146 | uint64_t crit_print = config.crit.value; |
| 114 | crit_print = config.crit.value * (data.metrics.total / HUNDRED_PERCENT); | 147 | if (config.crit.is_percentage) { |
| 148 | crit_print = config.crit.value * (data.metrics.total / HUNDRED_PERCENT); | ||
| 149 | } | ||
| 150 | |||
| 151 | mp_perfdata_value crit_pd = mp_create_pd_value(crit_print); | ||
| 152 | |||
| 153 | mp_range crit_range = mp_range_init(); | ||
| 154 | crit_range.end_infinity = false; | ||
| 155 | crit_range.end = crit_pd; | ||
| 156 | |||
| 157 | pd.crit = crit_range; | ||
| 158 | pd.crit_present = true; | ||
| 115 | } | 159 | } |
| 116 | 160 | ||
| 117 | char *perfdata = perfdata_uint64("swap", data.metrics.free, "B", config.warn_is_set, warn_print, config.crit_is_set, crit_print, true, | 161 | mp_perfdata_value max = mp_create_pd_value(data.metrics.total); |
| 118 | 0, true, data.metrics.total); | 162 | pd.max = max; |
| 163 | pd.max_present = true; | ||
| 119 | 164 | ||
| 120 | if (config.warn_is_set) { | 165 | mp_perfdata_value min = mp_create_pd_value(0); |
| 121 | if (verbose > 1) { | 166 | pd.min = min; |
| 122 | printf("Warn threshold value: %" PRIu64 "\n", config.warn.value); | 167 | pd.min_present = true; |
| 123 | } | 168 | |
| 169 | mp_add_perfdata_to_subcheck(&sc1, pd); | ||
| 170 | if (verbose > 1) { | ||
| 171 | printf("Warn threshold value: %" PRIu64 "\n", config.warn.value); | ||
| 172 | } | ||
| 124 | 173 | ||
| 125 | if ((config.warn.is_percentage && (percent_used >= (double)(HUNDRED_PERCENT - config.warn.value))) || | 174 | if (config.warn_is_set) { |
| 175 | if ((config.warn.is_percentage && (percent_used >= (100 - (double)config.warn.value))) || | ||
| 126 | config.warn.value >= data.metrics.free) { | 176 | config.warn.value >= data.metrics.free) { |
| 127 | data.statusCode = max_state(data.statusCode, STATE_WARNING); | 177 | sc1 = mp_set_subcheck_state(sc1, STATE_WARNING); |
| 128 | } | 178 | } |
| 129 | } | 179 | } |
| 130 | 180 | ||
| 131 | if (config.crit_is_set) { | 181 | if (verbose > 1) { |
| 132 | if (verbose > 1) { | 182 | printf("Crit threshold value: %" PRIu64 "\n", config.crit.value); |
| 133 | printf("Crit threshold value: %" PRIu64 "\n", config.crit.value); | 183 | } |
| 134 | } | ||
| 135 | 184 | ||
| 136 | if ((config.crit.is_percentage && (percent_used >= (double)(HUNDRED_PERCENT - config.crit.value))) || | 185 | if (config.crit_is_set) { |
| 186 | if ((config.crit.is_percentage && (percent_used >= (100 - (double)config.crit.value))) || | ||
| 137 | config.crit.value >= data.metrics.free) { | 187 | config.crit.value >= data.metrics.free) { |
| 138 | data.statusCode = max_state(data.statusCode, STATE_CRITICAL); | 188 | sc1 = mp_set_subcheck_state(sc1, STATE_CRITICAL); |
| 139 | } | 189 | } |
| 140 | } | 190 | } |
| 141 | 191 | ||
| 142 | printf(_("SWAP %s - %g%% free (%lluMiB out of %lluMiB) %s|%s\n"), state_text(data.statusCode), (HUNDRED_PERCENT - percent_used), | 192 | xasprintf(&sc1.output, _("%g%% free (%lluMiB out of %lluMiB)"), (100 - percent_used), |
| 143 | BYTES_TO_MiB(data.metrics.free), BYTES_TO_MiB(data.metrics.total), status, perfdata); | 193 | data.metrics.free >> 20, data.metrics.total >> 20); |
| 144 | 194 | ||
| 145 | exit(data.statusCode); | 195 | overall.summary = "Swap"; |
| 196 | mp_add_subcheck_to_check(&overall, sc1); | ||
| 197 | |||
| 198 | mp_exit(overall); | ||
| 146 | } | 199 | } |
| 147 | 200 | ||
| 148 | int check_swap(float free_swap_mb, float total_swap_mb, swap_config config) { | 201 | int check_swap(float free_swap_mb, float total_swap_mb, swap_config config) { |
| @@ -150,7 +203,9 @@ int check_swap(float free_swap_mb, float total_swap_mb, swap_config config) { | |||
| 150 | return config.no_swap_state; | 203 | return config.no_swap_state; |
| 151 | } | 204 | } |
| 152 | 205 | ||
| 153 | uint64_t free_swap = (uint64_t)(free_swap_mb * (1024 * 1024)); /* Convert back to bytes as warn and crit specified in bytes */ | 206 | uint64_t free_swap = |
| 207 | (uint64_t)(free_swap_mb * | ||
| 208 | (1024 * 1024)); /* Convert back to bytes as warn and crit specified in bytes */ | ||
| 154 | 209 | ||
| 155 | if (!config.crit.is_percentage && config.crit.value >= free_swap) { | 210 | if (!config.crit.is_percentage && config.crit.value >= free_swap) { |
| 156 | return STATE_CRITICAL; | 211 | return STATE_CRITICAL; |
| @@ -159,28 +214,38 @@ int check_swap(float free_swap_mb, float total_swap_mb, swap_config config) { | |||
| 159 | return STATE_WARNING; | 214 | return STATE_WARNING; |
| 160 | } | 215 | } |
| 161 | 216 | ||
| 162 | uint64_t usage_percentage = (uint64_t)((total_swap_mb - free_swap_mb) / total_swap_mb) * HUNDRED_PERCENT; | 217 | uint64_t usage_percentage = |
| 218 | (uint64_t)((total_swap_mb - free_swap_mb) / total_swap_mb) * HUNDRED_PERCENT; | ||
| 163 | 219 | ||
| 164 | if (config.crit.is_percentage && config.crit.value != 0 && usage_percentage >= (HUNDRED_PERCENT - config.crit.value)) { | 220 | if (config.crit.is_percentage && config.crit.value != 0 && |
| 221 | usage_percentage >= (HUNDRED_PERCENT - config.crit.value)) { | ||
| 165 | return STATE_CRITICAL; | 222 | return STATE_CRITICAL; |
| 166 | } | 223 | } |
| 167 | 224 | ||
| 168 | if (config.warn.is_percentage && config.warn.value != 0 && usage_percentage >= (HUNDRED_PERCENT - config.warn.value)) { | 225 | if (config.warn.is_percentage && config.warn.value != 0 && |
| 226 | usage_percentage >= (HUNDRED_PERCENT - config.warn.value)) { | ||
| 169 | return STATE_WARNING; | 227 | return STATE_WARNING; |
| 170 | } | 228 | } |
| 171 | 229 | ||
| 172 | return STATE_OK; | 230 | return STATE_OK; |
| 173 | } | 231 | } |
| 174 | 232 | ||
| 233 | #define output_format_index CHAR_MAX + 1 | ||
| 234 | |||
| 175 | /* process command-line arguments */ | 235 | /* process command-line arguments */ |
| 176 | swap_config_wrapper process_arguments(int argc, char **argv) { | 236 | swap_config_wrapper process_arguments(int argc, char **argv) { |
| 177 | swap_config_wrapper conf_wrapper = {.errorcode = OK}; | 237 | swap_config_wrapper conf_wrapper = {.errorcode = OK}; |
| 178 | conf_wrapper.config = swap_config_init(); | 238 | conf_wrapper.config = swap_config_init(); |
| 179 | 239 | ||
| 180 | static struct option longopts[] = {{"warning", required_argument, 0, 'w'}, {"critical", required_argument, 0, 'c'}, | 240 | static struct option longopts[] = {{"warning", required_argument, 0, 'w'}, |
| 181 | {"allswaps", no_argument, 0, 'a'}, {"no-swap", required_argument, 0, 'n'}, | 241 | {"critical", required_argument, 0, 'c'}, |
| 182 | {"verbose", no_argument, 0, 'v'}, {"version", no_argument, 0, 'V'}, | 242 | {"allswaps", no_argument, 0, 'a'}, |
| 183 | {"help", no_argument, 0, 'h'}, {0, 0, 0, 0}}; | 243 | {"no-swap", required_argument, 0, 'n'}, |
| 244 | {"verbose", no_argument, 0, 'v'}, | ||
| 245 | {"version", no_argument, 0, 'V'}, | ||
| 246 | {"help", no_argument, 0, 'h'}, | ||
| 247 | {"output-format", required_argument, 0, output_format_index}, | ||
| 248 | {0, 0, 0, 0}}; | ||
| 184 | 249 | ||
| 185 | while (true) { | 250 | while (true) { |
| 186 | int option = 0; | 251 | int option = 0; |
| @@ -263,6 +328,18 @@ swap_config_wrapper process_arguments(int argc, char **argv) { | |||
| 263 | case 'v': /* verbose */ | 328 | case 'v': /* verbose */ |
| 264 | verbose++; | 329 | verbose++; |
| 265 | break; | 330 | break; |
| 331 | case output_format_index: { | ||
| 332 | parsed_output_format parser = mp_parse_output_format(optarg); | ||
| 333 | if (!parser.parsing_success) { | ||
| 334 | // TODO List all available formats here, maybe add anothoer usage function | ||
| 335 | printf("Invalid output format: %s\n", optarg); | ||
| 336 | exit(STATE_UNKNOWN); | ||
| 337 | } | ||
| 338 | |||
| 339 | conf_wrapper.config.output_format_is_set = true; | ||
| 340 | conf_wrapper.config.output_format = parser.output_format; | ||
| 341 | break; | ||
| 342 | } | ||
| 266 | case 'V': /* version */ | 343 | case 'V': /* version */ |
| 267 | print_revision(progname, NP_VERSION); | 344 | print_revision(progname, NP_VERSION); |
| 268 | exit(STATE_UNKNOWN); | 345 | exit(STATE_UNKNOWN); |
| @@ -319,6 +396,7 @@ void print_help(swap_config config) { | |||
| 319 | _("Resulting state when there is no swap regardless of thresholds. " | 396 | _("Resulting state when there is no swap regardless of thresholds. " |
| 320 | "Default:"), | 397 | "Default:"), |
| 321 | state_text(config.no_swap_state)); | 398 | state_text(config.no_swap_state)); |
| 399 | printf(UT_OUTPUT_FORMAT); | ||
| 322 | printf(UT_VERBOSE); | 400 | printf(UT_VERBOSE); |
| 323 | 401 | ||
| 324 | printf("\n"); | 402 | printf("\n"); |
