diff options
Diffstat (limited to 'plugins/netutils.c')
| -rw-r--r-- | plugins/netutils.c | 93 |
1 files changed, 58 insertions, 35 deletions
diff --git a/plugins/netutils.c b/plugins/netutils.c index ee81912a..e2916c65 100644 --- a/plugins/netutils.c +++ b/plugins/netutils.c | |||
| @@ -28,6 +28,8 @@ | |||
| 28 | *****************************************************************************/ | 28 | *****************************************************************************/ |
| 29 | 29 | ||
| 30 | #include "common.h" | 30 | #include "common.h" |
| 31 | #include "output.h" | ||
| 32 | #include "states.h" | ||
| 31 | #include "netutils.h" | 33 | #include "netutils.h" |
| 32 | 34 | ||
| 33 | unsigned int socket_timeout = DEFAULT_SOCKET_TIMEOUT; | 35 | unsigned int socket_timeout = DEFAULT_SOCKET_TIMEOUT; |
| @@ -43,12 +45,19 @@ int address_family = AF_INET; | |||
| 43 | 45 | ||
| 44 | /* handles socket timeouts */ | 46 | /* handles socket timeouts */ |
| 45 | void socket_timeout_alarm_handler(int sig) { | 47 | void socket_timeout_alarm_handler(int sig) { |
| 46 | if (sig == SIGALRM) | 48 | mp_subcheck timeout_sc = mp_subcheck_init(); |
| 47 | printf(_("%s - Socket timeout after %d seconds\n"), state_text(socket_timeout_state), socket_timeout); | 49 | timeout_sc = mp_set_subcheck_state(timeout_sc, socket_timeout_state); |
| 48 | else | ||
| 49 | printf(_("%s - Abnormal timeout after %d seconds\n"), state_text(socket_timeout_state), socket_timeout); | ||
| 50 | 50 | ||
| 51 | exit(socket_timeout_state); | 51 | if (sig == SIGALRM) { |
| 52 | xasprintf(&timeout_sc.output, _("Socket timeout after %d seconds\n"), socket_timeout); | ||
| 53 | } else { | ||
| 54 | xasprintf(&timeout_sc.output, _("Abnormal timeout after %d seconds\n"), socket_timeout); | ||
| 55 | } | ||
| 56 | |||
| 57 | mp_check overall = mp_check_init(); | ||
| 58 | mp_add_subcheck_to_check(&overall, timeout_sc); | ||
| 59 | |||
| 60 | mp_exit(overall); | ||
| 52 | } | 61 | } |
| 53 | 62 | ||
| 54 | /* connects to a host on a specified tcp port, sends a string, and gets a | 63 | /* connects to a host on a specified tcp port, sends a string, and gets a |
| @@ -65,12 +74,13 @@ int process_tcp_request2(const char *server_address, int server_port, const char | |||
| 65 | int recv_length = 0; | 74 | int recv_length = 0; |
| 66 | 75 | ||
| 67 | result = np_net_connect(server_address, server_port, &sd, IPPROTO_TCP); | 76 | result = np_net_connect(server_address, server_port, &sd, IPPROTO_TCP); |
| 68 | if (result != STATE_OK) | 77 | if (result != STATE_OK) { |
| 69 | return STATE_CRITICAL; | 78 | return STATE_CRITICAL; |
| 79 | } | ||
| 70 | 80 | ||
| 71 | send_result = send(sd, send_buffer, strlen(send_buffer), 0); | 81 | send_result = send(sd, send_buffer, strlen(send_buffer), 0); |
| 72 | if (send_result < 0 || (size_t)send_result != strlen(send_buffer)) { | 82 | if (send_result < 0 || (size_t)send_result != strlen(send_buffer)) { |
| 73 | printf("%s\n", _("Send failed")); | 83 | // printf("%s\n", _("Send failed")); |
| 74 | result = STATE_WARNING; | 84 | result = STATE_WARNING; |
| 75 | } | 85 | } |
| 76 | 86 | ||
| @@ -87,7 +97,7 @@ int process_tcp_request2(const char *server_address, int server_port, const char | |||
| 87 | if (!FD_ISSET(sd, &readfds)) { /* it hasn't */ | 97 | if (!FD_ISSET(sd, &readfds)) { /* it hasn't */ |
| 88 | if (!recv_length) { | 98 | if (!recv_length) { |
| 89 | strcpy(recv_buffer, ""); | 99 | strcpy(recv_buffer, ""); |
| 90 | printf("%s\n", _("No data was received from host!")); | 100 | // printf("%s\n", _("No data was received from host!")); |
| 91 | result = STATE_WARNING; | 101 | result = STATE_WARNING; |
| 92 | } else { /* this one failed, but previous ones worked */ | 102 | } else { /* this one failed, but previous ones worked */ |
| 93 | recv_buffer[recv_length] = 0; | 103 | recv_buffer[recv_length] = 0; |
| @@ -130,8 +140,9 @@ int process_request(const char *server_address, int server_port, int proto, cons | |||
| 130 | result = STATE_OK; | 140 | result = STATE_OK; |
| 131 | 141 | ||
| 132 | result = np_net_connect(server_address, server_port, &sd, proto); | 142 | result = np_net_connect(server_address, server_port, &sd, proto); |
| 133 | if (result != STATE_OK) | 143 | if (result != STATE_OK) { |
| 134 | return STATE_CRITICAL; | 144 | return STATE_CRITICAL; |
| 145 | } | ||
| 135 | 146 | ||
| 136 | result = send_request(sd, proto, send_buffer, recv_buffer, recv_size); | 147 | result = send_request(sd, proto, send_buffer, recv_buffer, recv_size); |
| 137 | 148 | ||
| @@ -169,15 +180,16 @@ int np_net_connect(const char *host_name, int port, int *sd, int proto) { | |||
| 169 | host_name++; | 180 | host_name++; |
| 170 | len -= 2; | 181 | len -= 2; |
| 171 | } | 182 | } |
| 172 | if (len >= sizeof(host)) | 183 | if (len >= sizeof(host)) { |
| 173 | return STATE_UNKNOWN; | 184 | return STATE_UNKNOWN; |
| 185 | } | ||
| 174 | memcpy(host, host_name, len); | 186 | memcpy(host, host_name, len); |
| 175 | host[len] = '\0'; | 187 | host[len] = '\0'; |
| 176 | snprintf(port_str, sizeof(port_str), "%d", port); | 188 | snprintf(port_str, sizeof(port_str), "%d", port); |
| 177 | result = getaddrinfo(host, port_str, &hints, &res); | 189 | result = getaddrinfo(host, port_str, &hints, &res); |
| 178 | 190 | ||
| 179 | if (result != 0) { | 191 | if (result != 0) { |
| 180 | printf("%s\n", gai_strerror(result)); | 192 | // printf("%s\n", gai_strerror(result)); |
| 181 | return STATE_UNKNOWN; | 193 | return STATE_UNKNOWN; |
| 182 | } | 194 | } |
| 183 | 195 | ||
| @@ -187,7 +199,7 @@ int np_net_connect(const char *host_name, int port, int *sd, int proto) { | |||
| 187 | *sd = socket(r->ai_family, socktype, r->ai_protocol); | 199 | *sd = socket(r->ai_family, socktype, r->ai_protocol); |
| 188 | 200 | ||
| 189 | if (*sd < 0) { | 201 | if (*sd < 0) { |
| 190 | printf("%s\n", _("Socket creation failed")); | 202 | // printf("%s\n", _("Socket creation failed")); |
| 191 | freeaddrinfo(r); | 203 | freeaddrinfo(r); |
| 192 | return STATE_UNKNOWN; | 204 | return STATE_UNKNOWN; |
| 193 | } | 205 | } |
| @@ -226,21 +238,23 @@ int np_net_connect(const char *host_name, int port, int *sd, int proto) { | |||
| 226 | die(STATE_UNKNOWN, _("Socket creation failed")); | 238 | die(STATE_UNKNOWN, _("Socket creation failed")); |
| 227 | } | 239 | } |
| 228 | result = connect(*sd, (struct sockaddr *)&su, sizeof(su)); | 240 | result = connect(*sd, (struct sockaddr *)&su, sizeof(su)); |
| 229 | if (result < 0 && errno == ECONNREFUSED) | 241 | if (result < 0 && errno == ECONNREFUSED) { |
| 230 | was_refused = true; | 242 | was_refused = true; |
| 243 | } | ||
| 231 | } | 244 | } |
| 232 | 245 | ||
| 233 | if (result == 0) | 246 | if (result == 0) { |
| 234 | return STATE_OK; | 247 | return STATE_OK; |
| 235 | else if (was_refused) { | 248 | } else if (was_refused) { |
| 236 | switch (econn_refuse_state) { /* a user-defined expected outcome */ | 249 | switch (econn_refuse_state) { /* a user-defined expected outcome */ |
| 237 | case STATE_OK: | 250 | case STATE_OK: |
| 238 | case STATE_WARNING: /* user wants WARN or OK on refusal, or... */ | 251 | case STATE_WARNING: /* user wants WARN or OK on refusal, or... */ |
| 239 | case STATE_CRITICAL: /* user did not set econn_refuse_state, or wanted critical */ | 252 | case STATE_CRITICAL: /* user did not set econn_refuse_state, or wanted critical */ |
| 240 | if (is_socket) | 253 | if (is_socket) { |
| 241 | printf("connect to file socket %s: %s\n", host_name, strerror(errno)); | 254 | // printf("connect to file socket %s: %s\n", host_name, strerror(errno)); |
| 242 | else | 255 | } else { |
| 243 | printf("connect to address %s and port %d: %s\n", host_name, port, strerror(errno)); | 256 | // printf("connect to address %s and port %d: %s\n", host_name, port, strerror(errno)); |
| 257 | } | ||
| 244 | return STATE_CRITICAL; | 258 | return STATE_CRITICAL; |
| 245 | break; | 259 | break; |
| 246 | default: /* it's a logic error if we do not end up in STATE_(OK|WARNING|CRITICAL) */ | 260 | default: /* it's a logic error if we do not end up in STATE_(OK|WARNING|CRITICAL) */ |
| @@ -248,10 +262,11 @@ int np_net_connect(const char *host_name, int port, int *sd, int proto) { | |||
| 248 | break; | 262 | break; |
| 249 | } | 263 | } |
| 250 | } else { | 264 | } else { |
| 251 | if (is_socket) | 265 | if (is_socket) { |
| 252 | printf("connect to file socket %s: %s\n", host_name, strerror(errno)); | 266 | // printf("connect to file socket %s: %s\n", host_name, strerror(errno)); |
| 253 | else | 267 | } else { |
| 254 | printf("connect to address %s and port %d: %s\n", host_name, port, strerror(errno)); | 268 | // printf("connect to address %s and port %d: %s\n", host_name, port, strerror(errno)); |
| 269 | } | ||
| 255 | return STATE_CRITICAL; | 270 | return STATE_CRITICAL; |
| 256 | } | 271 | } |
| 257 | } | 272 | } |
| @@ -265,7 +280,7 @@ int send_request(int sd, int proto, const char *send_buffer, char *recv_buffer, | |||
| 265 | 280 | ||
| 266 | send_result = send(sd, send_buffer, strlen(send_buffer), 0); | 281 | send_result = send(sd, send_buffer, strlen(send_buffer), 0); |
| 267 | if (send_result < 0 || (size_t)send_result != strlen(send_buffer)) { | 282 | if (send_result < 0 || (size_t)send_result != strlen(send_buffer)) { |
| 268 | printf("%s\n", _("Send failed")); | 283 | // printf("%s\n", _("Send failed")); |
| 269 | result = STATE_WARNING; | 284 | result = STATE_WARNING; |
| 270 | } | 285 | } |
| 271 | 286 | ||
| @@ -280,7 +295,7 @@ int send_request(int sd, int proto, const char *send_buffer, char *recv_buffer, | |||
| 280 | /* make sure some data has arrived */ | 295 | /* make sure some data has arrived */ |
| 281 | if (!FD_ISSET(sd, &readfds)) { | 296 | if (!FD_ISSET(sd, &readfds)) { |
| 282 | strcpy(recv_buffer, ""); | 297 | strcpy(recv_buffer, ""); |
| 283 | printf("%s\n", _("No data was received from host!")); | 298 | // printf("%s\n", _("No data was received from host!")); |
| 284 | result = STATE_WARNING; | 299 | result = STATE_WARNING; |
| 285 | } | 300 | } |
| 286 | 301 | ||
| @@ -288,11 +303,13 @@ int send_request(int sd, int proto, const char *send_buffer, char *recv_buffer, | |||
| 288 | recv_result = recv(sd, recv_buffer, (size_t)recv_size - 1, 0); | 303 | recv_result = recv(sd, recv_buffer, (size_t)recv_size - 1, 0); |
| 289 | if (recv_result == -1) { | 304 | if (recv_result == -1) { |
| 290 | strcpy(recv_buffer, ""); | 305 | strcpy(recv_buffer, ""); |
| 291 | if (proto != IPPROTO_TCP) | 306 | if (proto != IPPROTO_TCP) { |
| 292 | printf("%s\n", _("Receive failed")); | 307 | // printf("%s\n", _("Receive failed")); |
| 308 | } | ||
| 293 | result = STATE_WARNING; | 309 | result = STATE_WARNING; |
| 294 | } else | 310 | } else { |
| 295 | recv_buffer[recv_result] = 0; | 311 | recv_buffer[recv_result] = 0; |
| 312 | } | ||
| 296 | 313 | ||
| 297 | /* die returned string */ | 314 | /* die returned string */ |
| 298 | recv_buffer[recv_size - 1] = 0; | 315 | recv_buffer[recv_size - 1] = 0; |
| @@ -301,26 +318,30 @@ int send_request(int sd, int proto, const char *send_buffer, char *recv_buffer, | |||
| 301 | } | 318 | } |
| 302 | 319 | ||
| 303 | bool is_host(const char *address) { | 320 | bool is_host(const char *address) { |
| 304 | if (is_addr(address) || is_hostname(address)) | 321 | if (is_addr(address) || is_hostname(address)) { |
| 305 | return (true); | 322 | return (true); |
| 323 | } | ||
| 306 | 324 | ||
| 307 | return (false); | 325 | return (false); |
| 308 | } | 326 | } |
| 309 | 327 | ||
| 310 | void host_or_die(const char *str) { | 328 | void host_or_die(const char *str) { |
| 311 | if (!str || (!is_addr(str) && !is_hostname(str))) | 329 | if (!str || (!is_addr(str) && !is_hostname(str))) { |
| 312 | usage_va(_("Invalid hostname/address - %s"), str); | 330 | usage_va(_("Invalid hostname/address - %s"), str); |
| 331 | } | ||
| 313 | } | 332 | } |
| 314 | 333 | ||
| 315 | bool is_addr(const char *address) { | 334 | bool is_addr(const char *address) { |
| 316 | #ifdef USE_IPV6 | 335 | #ifdef USE_IPV6 |
| 317 | if (address_family == AF_INET && is_inet_addr(address)) | 336 | if (address_family == AF_INET && is_inet_addr(address)) { |
| 318 | return true; | 337 | return true; |
| 319 | else if (address_family == AF_INET6 && is_inet6_addr(address)) | 338 | } else if (address_family == AF_INET6 && is_inet6_addr(address)) { |
| 320 | return true; | 339 | return true; |
| 340 | } | ||
| 321 | #else | 341 | #else |
| 322 | if (is_inet_addr(address)) | 342 | if (is_inet_addr(address)) { |
| 323 | return (true); | 343 | return (true); |
| 344 | } | ||
| 324 | #endif | 345 | #endif |
| 325 | 346 | ||
| 326 | return (false); | 347 | return (false); |
| @@ -335,11 +356,13 @@ int dns_lookup(const char *in, struct sockaddr_storage *ss, int family) { | |||
| 335 | hints.ai_family = family; | 356 | hints.ai_family = family; |
| 336 | 357 | ||
| 337 | retval = getaddrinfo(in, NULL, &hints, &res); | 358 | retval = getaddrinfo(in, NULL, &hints, &res); |
| 338 | if (retval != 0) | 359 | if (retval != 0) { |
| 339 | return false; | 360 | return false; |
| 361 | } | ||
| 340 | 362 | ||
| 341 | if (ss != NULL) | 363 | if (ss != NULL) { |
| 342 | memcpy(ss, res->ai_addr, res->ai_addrlen); | 364 | memcpy(ss, res->ai_addr, res->ai_addrlen); |
| 365 | } | ||
| 343 | freeaddrinfo(res); | 366 | freeaddrinfo(res); |
| 344 | return true; | 367 | return true; |
| 345 | } | 368 | } |
