| 1 |
/* |
| 2 |
* i-scream central monitoring system |
| 3 |
* http://www.i-scream.org.uk |
| 4 |
* Copyright (C) 2000-2002 i-scream |
| 5 |
* |
| 6 |
* This program is free software; you can redistribute it and/or |
| 7 |
* modify it under the terms of the GNU General Public License |
| 8 |
* as published by the Free Software Foundation; either version 2 |
| 9 |
* of the License, or (at your option) any later version. |
| 10 |
* |
| 11 |
* This program is distributed in the hope that it will be useful, |
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
* GNU General Public License for more details. |
| 15 |
* |
| 16 |
* You should have received a copy of the GNU General Public License |
| 17 |
* along with this program; if not, write to the Free Software |
| 18 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 19 |
*/ |
| 20 |
|
| 21 |
#ifdef HAVE_CONFIG_H |
| 22 |
#include "config.h" |
| 23 |
#endif |
| 24 |
|
| 25 |
#include <stdio.h> |
| 26 |
#include <stdlib.h> |
| 27 |
#include <unistd.h> |
| 28 |
#include <string.h> |
| 29 |
#include <sys/types.h> |
| 30 |
#include <sys/socket.h> |
| 31 |
#include <stdarg.h> |
| 32 |
#include <errno.h> |
| 33 |
#include <netdb.h> |
| 34 |
|
| 35 |
#include "ukcprog.h" |
| 36 |
#include "statgrab.h" |
| 37 |
|
| 38 |
#define LOG_CRIT 0 |
| 39 |
#define LOG_ERR 1 |
| 40 |
#define LOG_INFO 2 |
| 41 |
#define LOG_DEBUG 3 |
| 42 |
|
| 43 |
typedef struct{ |
| 44 |
int filtermanager_port; |
| 45 |
char *filtermanager_host; |
| 46 |
|
| 47 |
char *host_ip; |
| 48 |
char *host_fqdn; |
| 49 |
|
| 50 |
char *server_fqdn; |
| 51 |
int server_udp_port; |
| 52 |
|
| 53 |
/* Weird stuff iscream wants sent to it */ |
| 54 |
char *last_modified; |
| 55 |
char *file_list; |
| 56 |
|
| 57 |
int udp_update_time; |
| 58 |
// int config_ttl; |
| 59 |
|
| 60 |
time_t config_ttl; |
| 61 |
|
| 62 |
}ihost_state_t; |
| 63 |
|
| 64 |
typedef struct{ |
| 65 |
int verbose; |
| 66 |
int daemon; |
| 67 |
|
| 68 |
FILE *log; |
| 69 |
}ihost_config_t; |
| 70 |
|
| 71 |
typedef struct{ |
| 72 |
struct sockaddr_in addr; |
| 73 |
int sock; |
| 74 |
}udp_sockinfo_t; |
| 75 |
|
| 76 |
ihost_config_t ihost_config; |
| 77 |
|
| 78 |
void log_msg(int level, char *format, ...){ |
| 79 |
extern int errno; |
| 80 |
int cur_errno; |
| 81 |
va_list ap; |
| 82 |
|
| 83 |
cur_errno=errno; |
| 84 |
|
| 85 |
if(level<=ihost_config.verbose){ |
| 86 |
va_start(ap, format); |
| 87 |
vfprintf(ihost_config.log, format, ap); |
| 88 |
va_end(ap); |
| 89 |
if(level==LOG_CRIT){ |
| 90 |
fprintf(ihost_config.log, " (%s)\n", strerror(cur_errno)); |
| 91 |
}else{ |
| 92 |
fprintf(ihost_config.log, "\n"); |
| 93 |
} |
| 94 |
} |
| 95 |
} |
| 96 |
|
| 97 |
/* Takes many pointers, checks if they are NULL or not, and then free's them */ |
| 98 |
/* Deprciated - and i only wrote it today! :) |
| 99 |
void m_free(int num_pointers, ...){ |
| 100 |
int x=0; |
| 101 |
va_list ap; |
| 102 |
void *p; |
| 103 |
|
| 104 |
va_start(ap, num_pointers); |
| 105 |
for(;x<num_pointers;x++){ |
| 106 |
p=va_arg(ap, void*); |
| 107 |
if(p!=NULL){ |
| 108 |
free(p); |
| 109 |
} |
| 110 |
} |
| 111 |
va_end(ap); |
| 112 |
} |
| 113 |
*/ |
| 114 |
|
| 115 |
int create_udp_sockinfo(udp_sockinfo_t *udp_sockinfo, char *hostname, int port){ |
| 116 |
|
| 117 |
struct in_addr haddr; |
| 118 |
|
| 119 |
log_msg(LOG_DEBUG, "Resolving name for udp connection"); |
| 120 |
if(get_host_addr(hostname, &haddr) != 0){ |
| 121 |
log_msg(LOG_CRIT, "Failed to lookup name"); |
| 122 |
return 1; |
| 123 |
} |
| 124 |
|
| 125 |
if((udp_sockinfo->sock=socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0){ |
| 126 |
log_msg(LOG_CRIT, "Failed to create UDP socket"); |
| 127 |
return 1; |
| 128 |
} |
| 129 |
|
| 130 |
memset(&(udp_sockinfo->addr), 0, sizeof(struct sockaddr_in)); |
| 131 |
udp_sockinfo->addr.sin_family=AF_INET; |
| 132 |
memcpy((char *)&(udp_sockinfo->addr.sin_addr), &haddr, sizeof(haddr)); |
| 133 |
udp_sockinfo->addr.sin_port = htons(port); |
| 134 |
|
| 135 |
log_msg(LOG_DEBUG, "Socket created"); |
| 136 |
return 0; |
| 137 |
} |
| 138 |
|
| 139 |
FILE *create_tcp_connection(char *hostname, int port){ |
| 140 |
int sock; |
| 141 |
struct sockaddr_in addr; |
| 142 |
struct in_addr haddr; |
| 143 |
FILE *f; |
| 144 |
|
| 145 |
log_msg(LOG_DEBUG, "Creating tcp socket"); |
| 146 |
if((sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP))<0){ |
| 147 |
log_msg(LOG_CRIT, "Failed to make TCP Socket"); |
| 148 |
return NULL; |
| 149 |
} |
| 150 |
|
| 151 |
if((get_host_addr(hostname, &haddr))!=0){ |
| 152 |
log_msg(LOG_CRIT, "Failed to lookup name for %s", hostname); |
| 153 |
return NULL; |
| 154 |
} |
| 155 |
|
| 156 |
memset(&addr, 0, sizeof(addr)); |
| 157 |
addr.sin_family = AF_INET; |
| 158 |
memcpy(&addr.sin_addr, &haddr, sizeof(haddr)); |
| 159 |
addr.sin_port = htons(port); |
| 160 |
|
| 161 |
log_msg(LOG_DEBUG, "Creating a tcp connection"); |
| 162 |
if(connect(sock, (struct sockaddr *)&addr, sizeof(addr)) !=0){ |
| 163 |
log_msg(LOG_CRIT, "Failed to connect to hostname %s on port %d", hostname, port); |
| 164 |
return NULL; |
| 165 |
} |
| 166 |
|
| 167 |
if((f=fdopen(sock, "r+"))==NULL){ |
| 168 |
log_msg(LOG_CRIT, "Failed to connect to open filedescriptor on tcp connection"); |
| 169 |
close(sock); |
| 170 |
return NULL; |
| 171 |
} |
| 172 |
|
| 173 |
return f; |
| 174 |
} |
| 175 |
|
| 176 |
int tcp_comm(FILE *f, char *send, char **response, char *expected){ |
| 177 |
|
| 178 |
log_msg(LOG_DEBUG, "Sending %s", send); |
| 179 |
fprintf(f, "%s\n", send); |
| 180 |
fflush(f); |
| 181 |
*response=fpgetline(f); |
| 182 |
fseek(f, 0, SEEK_CUR); |
| 183 |
|
| 184 |
if(*response!=NULL) log_msg(LOG_DEBUG, "Recieved %s", *response); |
| 185 |
|
| 186 |
if( (*response==NULL) || (strcmp(*response, "ERROR")==0) ) return -1; |
| 187 |
|
| 188 |
if(expected==NULL) return 0; |
| 189 |
|
| 190 |
if((strcmp(expected, *response))==0) return 0; |
| 191 |
|
| 192 |
log_msg(LOG_DEBUG, "Did not get expected response"); |
| 193 |
return -1; |
| 194 |
} |
| 195 |
|
| 196 |
int tcp_comm_strdup(FILE *f, char *send, char **response, char *expected){ |
| 197 |
if((tcp_comm(f, send, response, expected))!=0){ |
| 198 |
return -1; |
| 199 |
} |
| 200 |
|
| 201 |
*response=strdup(*response); |
| 202 |
if (response==NULL) return -1; |
| 203 |
|
| 204 |
return 0; |
| 205 |
} |
| 206 |
|
| 207 |
int ihost_getconfig(ihost_state_t *ihost_state){ |
| 208 |
|
| 209 |
FILE *tcp_con; |
| 210 |
char *response; |
| 211 |
char *response_ptr; |
| 212 |
|
| 213 |
/* Keep these in case of a failure and so it can keep running on the old config */ |
| 214 |
char *file_list=NULL; |
| 215 |
char *last_modified=NULL; |
| 216 |
char *host_fqdn=NULL; |
| 217 |
char *host_ip=NULL; |
| 218 |
int udp_update_time=0; |
| 219 |
char *server_fqdn=NULL; |
| 220 |
int server_udp_port=0; |
| 221 |
time_t config_ttl=0; |
| 222 |
|
| 223 |
if((tcp_con=create_tcp_connection(ihost_state->filtermanager_host, ihost_state->filtermanager_port))==NULL){ |
| 224 |
goto error; |
| 225 |
} |
| 226 |
|
| 227 |
if(ihost_state->file_list!=NULL || ihost_state->last_modified!=NULL){ |
| 228 |
if(tcp_con==NULL){ |
| 229 |
goto error; |
| 230 |
} |
| 231 |
|
| 232 |
if((tcp_comm(tcp_con, "CHECKCONFIG", &response, "OK"))!=0){ |
| 233 |
goto error; |
| 234 |
} |
| 235 |
|
| 236 |
if((tcp_comm(tcp_con, ihost_state->file_list, &response, "OK"))!=0){ |
| 237 |
goto error; |
| 238 |
} |
| 239 |
|
| 240 |
if((tcp_comm(tcp_con, ihost_state->last_modified, &response, "OK"))==0){ |
| 241 |
if((tcp_comm(tcp_con, "END", &response, "OK"))==0){ |
| 242 |
goto error; |
| 243 |
} |
| 244 |
fclose(tcp_con); |
| 245 |
return 0; |
| 246 |
}else{ |
| 247 |
if((strcmp(response, "EXPIRED"))!=0){ |
| 248 |
goto error; |
| 249 |
} |
| 250 |
} |
| 251 |
} |
| 252 |
|
| 253 |
/* If we got to here, the config must of expired */ |
| 254 |
|
| 255 |
if((tcp_comm(tcp_con, "STARTCONFIG", &response, "OK"))!=0){ |
| 256 |
goto error; |
| 257 |
} |
| 258 |
|
| 259 |
if((tcp_comm_strdup(tcp_con, "LASTMODIFIED", &response, NULL))!=0){ |
| 260 |
goto error; |
| 261 |
} |
| 262 |
last_modified=response; |
| 263 |
|
| 264 |
if((tcp_comm_strdup(tcp_con, "FILELIST", &response, NULL))!=0){ |
| 265 |
goto error; |
| 266 |
} |
| 267 |
file_list=response; |
| 268 |
|
| 269 |
if((tcp_comm_strdup(tcp_con, "FQDN", &response, NULL))!=0){ |
| 270 |
goto error; |
| 271 |
} |
| 272 |
host_fqdn=response; |
| 273 |
|
| 274 |
if((tcp_comm_strdup(tcp_con, "IP", &response, NULL))!=0){ |
| 275 |
goto error; |
| 276 |
} |
| 277 |
host_ip=response; |
| 278 |
|
| 279 |
if((tcp_comm(tcp_con, "UDPUpdateTime", &response, NULL))!=0){ |
| 280 |
goto error; |
| 281 |
} |
| 282 |
udp_update_time=atoi(response); |
| 283 |
|
| 284 |
if((tcp_comm(tcp_con, "ConfigTTL", &response, NULL))!=0){ |
| 285 |
goto error; |
| 286 |
} |
| 287 |
config_ttl=atoi(response); |
| 288 |
|
| 289 |
if((tcp_comm(tcp_con, "ENDCONFIG", &response, NULL))!=0){ |
| 290 |
goto error; |
| 291 |
} |
| 292 |
|
| 293 |
if((tcp_comm(tcp_con, "FILTER", &response, NULL))!=0){ |
| 294 |
goto error; |
| 295 |
}else{ |
| 296 |
response_ptr=strchr(response,';'); |
| 297 |
if(response_ptr==NULL){ |
| 298 |
log_msg(LOG_ERR, "Incorrect data sent by server"); |
| 299 |
goto error; |
| 300 |
} |
| 301 |
*response_ptr='\0'; |
| 302 |
server_fqdn=strdup(response); |
| 303 |
if(server_fqdn==NULL){ |
| 304 |
goto error; |
| 305 |
} |
| 306 |
response_ptr++; |
| 307 |
if(response_ptr==NULL){ |
| 308 |
log_msg(LOG_ERR, "Incorrect data sent by server"); |
| 309 |
goto error; |
| 310 |
} |
| 311 |
|
| 312 |
printf("string : %s\n", response_ptr); |
| 313 |
server_udp_port=atoi(response_ptr); |
| 314 |
|
| 315 |
if (server_udp_port==0){ |
| 316 |
log_msg(LOG_ERR, "Incorrect data sent by server"); |
| 317 |
goto error; |
| 318 |
} |
| 319 |
} |
| 320 |
|
| 321 |
if((tcp_comm(tcp_con, "END", &response, "OK"))!=0){ |
| 322 |
goto error; |
| 323 |
} |
| 324 |
|
| 325 |
fclose(tcp_con); |
| 326 |
|
| 327 |
/* We have the data we need, and its all been read correctly */ |
| 328 |
|
| 329 |
/* Free the old data before pointing them to the new data. m_free copes should |
| 330 |
* this already be NULL */ |
| 331 |
if(ihost_state->file_list!=NULL) free(ihost_state->file_list); |
| 332 |
if(ihost_state->last_modified!=NULL) free(ihost_state->last_modified); |
| 333 |
if(ihost_state->host_fqdn!=NULL) free(ihost_state->host_fqdn); |
| 334 |
if(ihost_state->server_fqdn!=NULL) free(ihost_state->server_fqdn); |
| 335 |
if(ihost_state->host_ip!=NULL) free(ihost_state->host_ip); |
| 336 |
|
| 337 |
ihost_state->file_list=file_list; |
| 338 |
ihost_state->last_modified=last_modified; |
| 339 |
ihost_state->host_fqdn=host_fqdn; |
| 340 |
ihost_state->host_ip=host_ip; |
| 341 |
ihost_state->server_fqdn=server_fqdn; |
| 342 |
ihost_state->server_udp_port=server_udp_port; |
| 343 |
ihost_state->udp_update_time=udp_update_time; |
| 344 |
ihost_state->config_ttl=config_ttl; |
| 345 |
|
| 346 |
log_msg(LOG_DEBUG, "UDP Update time %d", udp_update_time); |
| 347 |
log_msg(LOG_DEBUG, "Configure ttl %d", config_ttl); |
| 348 |
|
| 349 |
return 0; |
| 350 |
|
| 351 |
error: |
| 352 |
|
| 353 |
if(file_list!=NULL) free(file_list); |
| 354 |
if(last_modified!=NULL) free(last_modified); |
| 355 |
if(host_fqdn!=NULL) free(host_fqdn); |
| 356 |
if(server_fqdn!=NULL) free(server_fqdn); |
| 357 |
if(host_ip!=NULL) free(host_ip); |
| 358 |
fclose(tcp_con); |
| 359 |
|
| 360 |
return -1; |
| 361 |
} |
| 362 |
|
| 363 |
int get_system_stats(int seq_no, ihost_state_t *ihost_state, char *xml, int size){ |
| 364 |
char tmp[size]; |
| 365 |
cpu_percent_t *cpu_percent; |
| 366 |
mem_stat_t *mem_stats; |
| 367 |
load_stat_t *load_stats; |
| 368 |
user_stat_t *user_stats; |
| 369 |
swap_stat_t *swap_stats; |
| 370 |
general_stat_t *general_stats; |
| 371 |
disk_stat_t *disk_stats; |
| 372 |
diskio_stat_t *diskio_stats; |
| 373 |
process_stat_t *process_stats; |
| 374 |
network_stat_t *network_stats; |
| 375 |
page_stat_t *page_stats; |
| 376 |
int disk_entries=0; |
| 377 |
int diskio_entries=0; |
| 378 |
int network_entries=0; |
| 379 |
|
| 380 |
int counter; |
| 381 |
long long x; |
| 382 |
long long y; |
| 383 |
|
| 384 |
/* Print start of the packet we want */ |
| 385 |
snprintf(xml, size, "<packet seq_no=\"%d\" machine_name=\"%s\" date=\"%ld\" type=\"data\" ip=\"%s\">", \ |
| 386 |
seq_no, ihost_state->host_fqdn, time(NULL), ihost_state->host_ip); |
| 387 |
|
| 388 |
/* Get cpu stats, check it is correct, then fill in its entry for the xml */ |
| 389 |
if((cpu_percent=cpu_percent_usage())==NULL){ |
| 390 |
log_msg(LOG_CRIT, "Failed to get cpu statistics"); |
| 391 |
}else{ |
| 392 |
snprintf(tmp, size, \ |
| 393 |
"<cpu><user>%3.2f</user><kernel>%3.2f</kernel><idle>%3.2f</idle><iowait>%3.2f</iowait><swap>%3.2f</swap></cpu>", \ |
| 394 |
cpu_percent->user, \ |
| 395 |
cpu_percent->kernel, \ |
| 396 |
cpu_percent->idle, \ |
| 397 |
cpu_percent->iowait, \ |
| 398 |
cpu_percent->swap); |
| 399 |
|
| 400 |
if(strlcat(xml, tmp, size) >= size) goto too_big_error; |
| 401 |
} |
| 402 |
|
| 403 |
|
| 404 |
/*Get mem stats, and fill in xml */ |
| 405 |
if((mem_stats=get_memory_stats())==NULL){ |
| 406 |
log_msg(LOG_CRIT, "Failed to get memory statistics"); |
| 407 |
}else{ |
| 408 |
snprintf(tmp, size, \ |
| 409 |
"<memory><total>%lld</total><free>%lld</free><used>%lld</used><cache>%lld</cache></memory>", \ |
| 410 |
mem_stats->total, \ |
| 411 |
mem_stats->free, \ |
| 412 |
mem_stats->used, \ |
| 413 |
mem_stats->cache); |
| 414 |
|
| 415 |
if(strlcat(xml, tmp, size) >= size) goto too_big_error; |
| 416 |
} |
| 417 |
|
| 418 |
|
| 419 |
/* Get load stats */ |
| 420 |
if((load_stats=get_load_stats())==NULL){ |
| 421 |
log_msg(LOG_CRIT, "Failed to get load statistics"); |
| 422 |
}else{ |
| 423 |
snprintf(tmp, size, \ |
| 424 |
"<load><load1>%.2lf</load1><load5>%.2lf</load5><load15>%.2lf</load15></load>", \ |
| 425 |
load_stats->min1, \ |
| 426 |
load_stats->min5, \ |
| 427 |
load_stats->min15); |
| 428 |
if(strlcat(xml, tmp, size) >= size) goto too_big_error; |
| 429 |
} |
| 430 |
|
| 431 |
|
| 432 |
/* get user stats */ |
| 433 |
|
| 434 |
if((user_stats=get_user_stats())==NULL){ |
| 435 |
log_msg(LOG_CRIT, "Failed to get user statistics"); |
| 436 |
}else{ |
| 437 |
|
| 438 |
snprintf(tmp, size, \ |
| 439 |
"<users><list>%s</list><count>%d</count></users>", \ |
| 440 |
user_stats->name_list, \ |
| 441 |
user_stats->num_entries); |
| 442 |
|
| 443 |
if(strlcat(xml, tmp, size) >= size) goto too_big_error; |
| 444 |
} |
| 445 |
|
| 446 |
|
| 447 |
/* swap stats */ |
| 448 |
if((swap_stats=get_swap_stats())==NULL){ |
| 449 |
log_msg(LOG_CRIT, "Failed to get swap statistics"); |
| 450 |
}else{ |
| 451 |
snprintf(tmp, size, \ |
| 452 |
"<swap><total>%lld</total><used>%lld</used><free>%lld</free></swap>",\ |
| 453 |
swap_stats->total, \ |
| 454 |
swap_stats->used, \ |
| 455 |
swap_stats->free); |
| 456 |
|
| 457 |
if(strlcat(xml, tmp, size) >= size) goto too_big_error; |
| 458 |
} |
| 459 |
|
| 460 |
|
| 461 |
/* general stats */ |
| 462 |
|
| 463 |
if((general_stats=get_general_stats())==NULL){ |
| 464 |
log_msg(LOG_CRIT, "Failed to get general statistics"); |
| 465 |
}else{ |
| 466 |
snprintf(tmp, size, \ |
| 467 |
"<os><name>%s</name><release>%s</release><version>%s</version><sysname>%s</sysname><platform>%s</platform><uptime>%ld</uptime></os>", \ |
| 468 |
general_stats->os_name, \ |
| 469 |
general_stats->os_release, \ |
| 470 |
general_stats->os_version, \ |
| 471 |
general_stats->hostname, \ |
| 472 |
general_stats->platform, \ |
| 473 |
(long)general_stats->uptime); |
| 474 |
|
| 475 |
if(strlcat(xml, tmp, size) >= size) goto too_big_error; |
| 476 |
|
| 477 |
} |
| 478 |
|
| 479 |
|
| 480 |
/* process stats */ |
| 481 |
if((process_stats=get_process_stats())==NULL){ |
| 482 |
log_msg(LOG_CRIT, "Failed to get general statistics"); |
| 483 |
}else{ |
| 484 |
snprintf(tmp, size, \ |
| 485 |
"<processes><sleeping>%d</sleeping><cpu>%d</cpu><zombie>%d</zombie><stopped>%d</stopped><total>%d</total></processes>",\ |
| 486 |
process_stats->sleeping, \ |
| 487 |
process_stats->running, \ |
| 488 |
process_stats->zombie, \ |
| 489 |
process_stats->stopped, \ |
| 490 |
process_stats->total); |
| 491 |
|
| 492 |
if(strlcat(xml, tmp, size) >= size) goto too_big_error; |
| 493 |
|
| 494 |
} |
| 495 |
|
| 496 |
|
| 497 |
/* Get paging stats */ |
| 498 |
if((page_stats=get_page_stats_diff())==NULL){ |
| 499 |
log_msg(LOG_CRIT, "Failed to get paging statistics"); |
| 500 |
}else{ |
| 501 |
if(page_stats->systime!=0){ |
| 502 |
x=page_stats->pages_pagein / page_stats->systime; |
| 503 |
y=page_stats->pages_pageout / page_stats->systime; |
| 504 |
}else{ |
| 505 |
x=page_stats->pages_pagein; |
| 506 |
y=page_stats->pages_pageout; |
| 507 |
} |
| 508 |
snprintf(tmp, size, \ |
| 509 |
"<pages><swapins>%lld</swapins><swapouts>%lld</swapouts></pages>", \ |
| 510 |
x, \ |
| 511 |
y); |
| 512 |
|
| 513 |
if(strlcat(xml, tmp, size) >= size) goto too_big_error; |
| 514 |
} |
| 515 |
|
| 516 |
|
| 517 |
/* get diskio stats */ |
| 518 |
|
| 519 |
if((diskio_stats=get_diskio_stats_diff(&diskio_entries))==NULL){ |
| 520 |
log_msg(LOG_CRIT, "Fahttp://www.cs.ukc.ac.uk/teaching/02/modules/CO/6/17/rdl/criteria.pdfiled to get diskio statistics"); |
| 521 |
}else{ |
| 522 |
strlcat(xml, "<diskio>", size); |
| 523 |
for(counter=0;counter<diskio_entries;counter++){ |
| 524 |
|
| 525 |
if(diskio_stats->systime!=0){ |
| 526 |
x=diskio_stats->read_bytes / diskio_stats->systime; |
| 527 |
y=diskio_stats->write_bytes / diskio_stats->systime; |
| 528 |
}else{ |
| 529 |
x=diskio_stats->read_bytes; |
| 530 |
y=diskio_stats->write_bytes; |
| 531 |
} |
| 532 |
|
| 533 |
snprintf(tmp, size, \ |
| 534 |
"<p%d name=\"%s\" rbytes=\"%lld\" wbytes=\"%lld\"></p%d>", \ |
| 535 |
counter, \ |
| 536 |
diskio_stats->disk_name, \ |
| 537 |
x, \ |
| 538 |
y, \ |
| 539 |
counter); |
| 540 |
|
| 541 |
strlcat(xml, tmp, size); |
| 542 |
diskio_stats++; |
| 543 |
} |
| 544 |
|
| 545 |
if(strlcat(xml, "</diskio>", size) >= size) goto too_big_error; |
| 546 |
|
| 547 |
} |
| 548 |
|
| 549 |
|
| 550 |
/* get networks stats */ |
| 551 |
|
| 552 |
if((network_stats=get_network_stats_diff(&network_entries))==NULL){ |
| 553 |
log_msg(LOG_CRIT, "Failed to get network statistics"); |
| 554 |
}else{ |
| 555 |
strlcat(xml, "<net>", size); |
| 556 |
for(counter=0;counter<network_entries;counter++){ |
| 557 |
if(network_stats->systime!=0){ |
| 558 |
x=network_stats->rx / network_stats->systime; |
| 559 |
y=network_stats->tx / network_stats->systime; |
| 560 |
}else{ |
| 561 |
x=network_stats->rx; |
| 562 |
y=network_stats->tx; |
| 563 |
} |
| 564 |
|
| 565 |
snprintf(tmp, size, \ |
| 566 |
"<p%d name=\"%s\" rx=\"%lld\" tx=\"%lld\"></p%d>", \ |
| 567 |
counter, \ |
| 568 |
network_stats->interface_name, \ |
| 569 |
x, \ |
| 570 |
y, \ |
| 571 |
counter); |
| 572 |
|
| 573 |
strlcat(xml, tmp, size); |
| 574 |
network_stats++; |
| 575 |
} |
| 576 |
|
| 577 |
if(strlcat(xml, "</net>", size) >= size) goto too_big_error; |
| 578 |
|
| 579 |
} |
| 580 |
|
| 581 |
|
| 582 |
/* get disk stats */ |
| 583 |
|
| 584 |
if((disk_stats=get_disk_stats(&disk_entries))==NULL){ |
| 585 |
log_msg(LOG_CRIT, "Failed to get disk statistics"); |
| 586 |
}else{ |
| 587 |
strlcat(xml, "<disk>", size); |
| 588 |
for(counter=0;counter<disk_entries;counter++){ |
| 589 |
snprintf(tmp, size, \ |
| 590 |
"<p%d name=\"%s\" mount=\"%s\" fstype=\"%s\" total=\"%lld\" used=\"%lld\" avail=\"%lld\" totalinodes=\"%lld\" usedinodes=\"%lld\" freeinodes=\"%lld\"></p%d>", \ |
| 591 |
counter, \ |
| 592 |
disk_stats->device_name, \ |
| 593 |
disk_stats->mnt_point, \ |
| 594 |
disk_stats->fs_type, \ |
| 595 |
disk_stats->size, \ |
| 596 |
disk_stats->used, \ |
| 597 |
disk_stats->avail, \ |
| 598 |
disk_stats->total_inodes, \ |
| 599 |
disk_stats->used_inodes, \ |
| 600 |
disk_stats->free_inodes, \ |
| 601 |
counter); |
| 602 |
|
| 603 |
strlcat(xml, tmp, size); |
| 604 |
|
| 605 |
disk_stats++; |
| 606 |
} |
| 607 |
|
| 608 |
if(strlcat(xml, "</disk>", size) >= size) goto too_big_error; |
| 609 |
|
| 610 |
} |
| 611 |
|
| 612 |
|
| 613 |
if(strlcat(xml, "</packet>", size) >= size) goto too_big_error; |
| 614 |
|
| 615 |
/*If we got to here, it should of all been filled in nicely now */ |
| 616 |
return 0; |
| 617 |
|
| 618 |
too_big_error: |
| 619 |
log_msg(LOG_ERR, "UDP Packet is too large. Throwing away the packet"); |
| 620 |
return -1; |
| 621 |
} |
| 622 |
|
| 623 |
|
| 624 |
|
| 625 |
void usage(char *progname){ |
| 626 |
fprintf(stderr, "Usage %s [options] server port\n", progname); |
| 627 |
fprintf(stderr, "Options\n"); |
| 628 |
fprintf(stderr, " -v Verbose mode,-vv would make even more verbose\n"); |
| 629 |
fprintf(stderr, " -f Foreground mode, print errors to stderr\n"); |
| 630 |
fprintf(stderr, " -V Print version number\n"); |
| 631 |
fprintf(stderr, " -h Prints this help page\n"); |
| 632 |
exit(1); |
| 633 |
} |
| 634 |
|
| 635 |
int main(int argc, char **argv){ |
| 636 |
|
| 637 |
ihost_state_t ihost_state; |
| 638 |
udp_sockinfo_t udp_sockinfo; |
| 639 |
|
| 640 |
int cmdopt; |
| 641 |
extern int optind; |
| 642 |
pid_t pid; |
| 643 |
FILE *f; |
| 644 |
int packet_num=0; |
| 645 |
int len; |
| 646 |
|
| 647 |
char packet[MAX_UDP_PACKET_SIZE]; |
| 648 |
|
| 649 |
time_t cur_time, sleep_delay, udp_time=0, config_time=0; |
| 650 |
|
| 651 |
/* Set default settings */ |
| 652 |
ihost_config.verbose=1; |
| 653 |
ihost_config.daemon=1; |
| 654 |
/* Set all errors to go down stderr until told otherwise */ |
| 655 |
ihost_config.log=stderr; |
| 656 |
|
| 657 |
/* Blank ihost_state to default settings */ |
| 658 |
ihost_state.filtermanager_host=NULL; |
| 659 |
ihost_state.host_fqdn=NULL; |
| 660 |
ihost_state.host_ip=NULL; |
| 661 |
ihost_state.server_fqdn=NULL; |
| 662 |
ihost_state.file_list=NULL; |
| 663 |
ihost_state.last_modified=NULL; |
| 664 |
|
| 665 |
while((cmdopt=getopt(argc, argv, "vfhV")) != -1){ |
| 666 |
switch(cmdopt){ |
| 667 |
case 'v': |
| 668 |
ihost_config.verbose++; |
| 669 |
break; |
| 670 |
|
| 671 |
case 'f': |
| 672 |
/* Force syslog logging since stderr will be closed in this case */ |
| 673 |
ihost_config.daemon=0; |
| 674 |
break; |
| 675 |
|
| 676 |
case 'h': |
| 677 |
usage(argv[0]); |
| 678 |
break; |
| 679 |
|
| 680 |
case 'V': |
| 681 |
fprintf(stderr, "%s version %s\n", argv[0], VERSION); |
| 682 |
break; |
| 683 |
|
| 684 |
default: |
| 685 |
usage(argv[0]); |
| 686 |
exit(1); |
| 687 |
} |
| 688 |
} |
| 689 |
|
| 690 |
if(argc!=optind+2){ |
| 691 |
usage(argv[0]); |
| 692 |
exit(1); |
| 693 |
} |
| 694 |
|
| 695 |
ihost_state.filtermanager_host=strdup(argv[optind]); |
| 696 |
ihost_state.filtermanager_port=atoi(argv[optind+1]); |
| 697 |
|
| 698 |
if(gethostbyname(ihost_state.filtermanager_host)==NULL){ |
| 699 |
log_msg(LOG_CRIT, "Failed to lookup hostname. Please check settings"); |
| 700 |
exit(1); |
| 701 |
} |
| 702 |
if(ihost_state.filtermanager_port==0){ |
| 703 |
log_msg(LOG_ERR, "Invalid port number"); |
| 704 |
exit(1); |
| 705 |
} |
| 706 |
|
| 707 |
if(ihost_config.daemon){ |
| 708 |
pid=fork(); |
| 709 |
if(pid==-1){ |
| 710 |
log_msg(LOG_CRIT, "Failed to background exiting"); |
| 711 |
exit(1); |
| 712 |
}else if(pid!=0){ |
| 713 |
/* Parent process */ |
| 714 |
return 0; |
| 715 |
} |
| 716 |
/* We should now be in the background*/ |
| 717 |
if(setsid()==-1){ |
| 718 |
log_msg(LOG_CRIT, "setsid failed"); |
| 719 |
exit(1); |
| 720 |
} |
| 721 |
|
| 722 |
if((ihost_config.log=fopen(LOG_FILE, "a"))==NULL){ |
| 723 |
ihost_config.log=stderr; |
| 724 |
log_msg(LOG_CRIT, "Failed to open Logfiles %s for writing", LOG_FILE); |
| 725 |
exit(1); |
| 726 |
} |
| 727 |
|
| 728 |
fclose(stdin); |
| 729 |
fclose(stdout); |
| 730 |
fclose(stderr); |
| 731 |
|
| 732 |
} |
| 733 |
|
| 734 |
log_msg(LOG_INFO, "Starting ihost"); |
| 735 |
|
| 736 |
log_msg(LOG_DEBUG,"Writing PID FILE"); |
| 737 |
|
| 738 |
pid=getpid(); |
| 739 |
|
| 740 |
if((f=fopen(PID_FILE,"w")) == NULL){ |
| 741 |
log_msg(LOG_CRIT, "Failed to write PID file"); |
| 742 |
}else{ |
| 743 |
if((fprintf(f,"%d",(int)pid)) <= 0 ){ |
| 744 |
log_msg(LOG_CRIT, "Failed to write PID file"); |
| 745 |
} |
| 746 |
if((fclose(f))!=0){ |
| 747 |
log_msg(LOG_CRIT, "failed to close PID file"); |
| 748 |
} |
| 749 |
} |
| 750 |
|
| 751 |
/* Get the initial config from the filter manager. Should this fail, |
| 752 |
* wait, and then try again. */ |
| 753 |
|
| 754 |
get_diskio_stats_diff(&packet_num); |
| 755 |
packet_num=0; |
| 756 |
|
| 757 |
while(ihost_getconfig(&ihost_state)!=0){ |
| 758 |
log_msg(LOG_ERR, "Failed to get ihost config"); |
| 759 |
sleep(10); |
| 760 |
} |
| 761 |
|
| 762 |
printf("%s\n%d\n", ihost_state.server_fqdn, ihost_state.server_udp_port); |
| 763 |
while((create_udp_sockinfo(&udp_sockinfo, ihost_state.server_fqdn, ihost_state.server_udp_port))!=0){ |
| 764 |
log_msg(LOG_ERR, "Failed to create udp socket"); |
| 765 |
sleep(10); |
| 766 |
} |
| 767 |
|
| 768 |
config_time=time(NULL)+ihost_state.config_ttl; |
| 769 |
|
| 770 |
/* Now have config.. collect data and send as often as required */ |
| 771 |
for(;;){ |
| 772 |
cur_time=time(NULL); |
| 773 |
|
| 774 |
if(cur_time>=udp_time){ |
| 775 |
if((get_system_stats(packet_num++, &ihost_state, packet, MAX_UDP_PACKET_SIZE))!=0){ |
| 776 |
log_msg(LOG_ERR, "Failed to get system stats"); |
| 777 |
} |
| 778 |
|
| 779 |
len=strlen(packet); |
| 780 |
log_msg(LOG_DEBUG, "Packet size: %d\nPacket: %s\n", len, packet); |
| 781 |
|
| 782 |
if((sendto(udp_sockinfo.sock, packet, len, 0, (struct sockaddr *) &udp_sockinfo.addr, sizeof(udp_sockinfo.addr)))!=len){ |
| 783 |
log_msg(LOG_CRIT, "Failed to send packet"); |
| 784 |
} |
| 785 |
udp_time=cur_time+ihost_state.udp_update_time; |
| 786 |
log_msg(LOG_DEBUG, "Next packet should be sent on %d", udp_time); |
| 787 |
} |
| 788 |
|
| 789 |
if(cur_time>=config_time){ |
| 790 |
if(ihost_getconfig(&ihost_state)!=0){ |
| 791 |
/* If we can't get the config, try again 5 minutes time */ |
| 792 |
log_msg(LOG_ERR, "Failed to get config, try again 5 minutes time"); |
| 793 |
config_time=time(NULL)+300; |
| 794 |
}else{ |
| 795 |
close(udp_sockinfo.sock); |
| 796 |
|
| 797 |
while((create_udp_sockinfo(&udp_sockinfo, ihost_state.server_fqdn, ihost_state.server_udp_port))!=0){ |
| 798 |
log_msg(LOG_CRIT, "Failed to create udp socket"); |
| 799 |
sleep(10); |
| 800 |
} |
| 801 |
|
| 802 |
config_time=time(NULL)+ihost_state.config_ttl; |
| 803 |
|
| 804 |
log_msg(LOG_DEBUG, "Config expires on %d\n", ihost_state.config_ttl); |
| 805 |
} |
| 806 |
} |
| 807 |
|
| 808 |
sleep_delay=udp_time-time(NULL); |
| 809 |
log_msg(LOG_DEBUG, "Sleeping for %d", sleep_delay); |
| 810 |
if(sleep_delay>0) sleep(sleep_delay); |
| 811 |
} |
| 812 |
|
| 813 |
return(0); |
| 814 |
} |
