| 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 |
#include <stdio.h> |
| 22 |
#include <stdlib.h> |
| 23 |
#include <sys/types.h> |
| 24 |
#include <unistd.h> |
| 25 |
#include <syslog.h> |
| 26 |
#include <netinet/in.h> |
| 27 |
#include "ukcprog.h" |
| 28 |
#include <netdb.h> |
| 29 |
#include <string.h> |
| 30 |
#include "statgrab.h" |
| 31 |
#include <time.h> |
| 32 |
#include <sys/socket.h> |
| 33 |
#include <arpa/inet.h> |
| 34 |
#include <syslog.h> |
| 35 |
|
| 36 |
#define VERSION_NO "1.0rc1" |
| 37 |
#define RECONFIGURE_RETURN_CODE 2 |
| 38 |
#define UDP_MAX_PACKET_SIZE 8192 |
| 39 |
#define PID_FILE "/var/tmp/.ihost.pid" |
| 40 |
|
| 41 |
#define logmessage(level, ...) do { cur_level = level; errf(__VA_ARGS__); } while (0) |
| 42 |
|
| 43 |
typedef struct{ |
| 44 |
int fm_port; |
| 45 |
char *fm_host; |
| 46 |
|
| 47 |
char *my_ip; |
| 48 |
char *my_fqdn; |
| 49 |
char *server_fqdn; |
| 50 |
int server_udp_port; |
| 51 |
int server_tcp_port; |
| 52 |
char *last_modified; |
| 53 |
char *files_list; |
| 54 |
char *key; |
| 55 |
int udp_update_time; |
| 56 |
int tcp_update_time; |
| 57 |
|
| 58 |
}ihost_state_t; |
| 59 |
|
| 60 |
static int log_level; |
| 61 |
static int cur_level; |
| 62 |
static int syslog_logging; |
| 63 |
|
| 64 |
void log_errors(const char *message){ |
| 65 |
if(log_level>=cur_level){ |
| 66 |
if (syslog_logging==1){ |
| 67 |
syslog(cur_level, "%s\n", message); |
| 68 |
}else{ |
| 69 |
fprintf(stderr, "%s\n", message); |
| 70 |
} |
| 71 |
} |
| 72 |
} |
| 73 |
|
| 74 |
char* sock_comm(FILE *f_r, FILE *f_w, char *sendString){ |
| 75 |
char *reply; |
| 76 |
logmessage(LOG_DEBUG, "Sending %s",sendString); |
| 77 |
fprintf(f_w, "%s\n", sendString); |
| 78 |
fflush(f_w); |
| 79 |
reply=fpgetline(f_r); |
| 80 |
if (reply!=NULL) logmessage(LOG_DEBUG, "Received %s", reply); |
| 81 |
/* Returns pointer to static buffer */ |
| 82 |
return reply; |
| 83 |
} |
| 84 |
|
| 85 |
int ihost_configure(ihost_state_t *ihost_state){ |
| 86 |
struct sockaddr_in addr; |
| 87 |
struct in_addr haddr; |
| 88 |
struct sockaddr ip; |
| 89 |
int ip_len; |
| 90 |
int sd; |
| 91 |
FILE *fm_fd_r, *fm_fd_w; |
| 92 |
char *reply; |
| 93 |
char *reply_ptr; |
| 94 |
|
| 95 |
/* Check to see if anything needs to be free'd */ |
| 96 |
if (ihost_state->my_fqdn!=NULL) free(ihost_state->my_fqdn); |
| 97 |
if (ihost_state->server_fqdn!=NULL) free(ihost_state->server_fqdn); |
| 98 |
if (ihost_state->last_modified!=NULL) free(ihost_state->last_modified); |
| 99 |
if (ihost_state->files_list!=NULL) free(ihost_state->files_list); |
| 100 |
|
| 101 |
logmessage(LOG_DEBUG, "Setting up configure socket to %s on port %d", ihost_state->fm_host, ihost_state->fm_port); |
| 102 |
if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) { |
| 103 |
logmessage(LOG_ERR, "Can't create AF_INET socket (%m)"); |
| 104 |
return -1; |
| 105 |
} |
| 106 |
|
| 107 |
if (get_host_addr(ihost_state->fm_host, &haddr) != 0){ |
| 108 |
logmessage(LOG_ERR, "Failed to resolve address %s (%m)", ihost_state->fm_host); |
| 109 |
return -1; |
| 110 |
} |
| 111 |
|
| 112 |
memset(&addr, 0, sizeof addr); |
| 113 |
addr.sin_family = AF_INET; |
| 114 |
memcpy(&addr.sin_addr, &haddr, sizeof haddr); |
| 115 |
addr.sin_port = htons(ihost_state->fm_port); |
| 116 |
|
| 117 |
if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) { |
| 118 |
logmessage(LOG_ERR, "Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port); |
| 119 |
return -1; |
| 120 |
} |
| 121 |
|
| 122 |
/* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */ |
| 123 |
if ((fm_fd_r=fdopen(sd,"r")) == NULL){ |
| 124 |
logmessage(LOG_ERR, "Failed to open read stream (%m)"); |
| 125 |
return -1; |
| 126 |
} |
| 127 |
|
| 128 |
if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){ |
| 129 |
logmessage(LOG_ERR, "Failed to open write stream (%m)"); |
| 130 |
return -1; |
| 131 |
} |
| 132 |
ip_len=sizeof ip; |
| 133 |
memset(&ip, 0, ip_len); |
| 134 |
if((getsockname(sd, &ip, &ip_len)) != 0){ |
| 135 |
logmessage(LOG_ERR, "Failed to get IP address (%m)"); |
| 136 |
return -1; |
| 137 |
} |
| 138 |
if (ip.sa_family!=AF_INET){ |
| 139 |
logmessage(LOG_ERR, "sa family is wrong type"); |
| 140 |
return -1; |
| 141 |
} |
| 142 |
|
| 143 |
if(ihost_state->my_ip!=NULL) free(ihost_state->my_ip); |
| 144 |
if((ihost_state->my_ip=strdup(inet_ntoa(((struct sockaddr_in *)&ip)->sin_addr)))==NULL){ |
| 145 |
logmessage(LOG_ERR, "Failed to get IP (%m)"); |
| 146 |
return -1; |
| 147 |
} |
| 148 |
|
| 149 |
reply=sock_comm(fm_fd_r, fm_fd_w, "STARTCONFIG"); |
| 150 |
if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) { |
| 151 |
logmessage(LOG_ERR, "Server error on STARTCONFIG"); |
| 152 |
return -1; |
| 153 |
} |
| 154 |
|
| 155 |
reply=sock_comm(fm_fd_r, fm_fd_w, "LASTMODIFIED"); |
| 156 |
if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){ |
| 157 |
logmessage(LOG_ERR, "Server error on LASTMODIFIED (%m)"); |
| 158 |
return -1; |
| 159 |
} |
| 160 |
if((ihost_state->last_modified=strdup(reply)) == NULL){ |
| 161 |
logmessage(LOG_ERR, "strdup failed (%m)"); |
| 162 |
return -1; |
| 163 |
} |
| 164 |
|
| 165 |
reply=sock_comm(fm_fd_r, fm_fd_w, "FILELIST"); |
| 166 |
if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){ |
| 167 |
logmessage(LOG_ERR, "Server error on FILELIST (%m)"); |
| 168 |
return -1; |
| 169 |
} |
| 170 |
if((ihost_state->files_list=strdup(reply)) == NULL){ |
| 171 |
logmessage(LOG_ERR, "strdup failed (%m)"); |
| 172 |
return -1; |
| 173 |
} |
| 174 |
|
| 175 |
reply=sock_comm(fm_fd_r, fm_fd_w, "FQDN"); |
| 176 |
if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){ |
| 177 |
logmessage(LOG_ERR, "Server error on FQDN (%m)"); |
| 178 |
return -1; |
| 179 |
} |
| 180 |
if((ihost_state->my_fqdn=strdup(reply)) == NULL){ |
| 181 |
logmessage(LOG_ERR, "strdup failed (%m)"); |
| 182 |
return -1; |
| 183 |
} |
| 184 |
|
| 185 |
reply=sock_comm(fm_fd_r, fm_fd_w, "UDPUpdateTime"); |
| 186 |
if(reply== NULL){ |
| 187 |
logmessage(LOG_ERR, "Server error (%m)"); |
| 188 |
return -1; |
| 189 |
} |
| 190 |
if (strncasecmp(reply, "ERROR", 5) != 0){ |
| 191 |
ihost_state->udp_update_time=atoi(reply); |
| 192 |
} |
| 193 |
|
| 194 |
reply=sock_comm(fm_fd_r, fm_fd_w, "TCPUpdateTime"); |
| 195 |
if(reply== NULL){ |
| 196 |
logmessage(LOG_ERR, "Server error on TCPUpdateTime (%m)"); |
| 197 |
return -1; |
| 198 |
} |
| 199 |
if (strncasecmp(reply, "ERROR", 5) != 0){ |
| 200 |
ihost_state->tcp_update_time=atoi(reply); |
| 201 |
} |
| 202 |
|
| 203 |
reply=sock_comm(fm_fd_r, fm_fd_w, "ENDCONFIG"); |
| 204 |
if(reply== NULL){ |
| 205 |
logmessage(LOG_ERR, "Server error on ENDCONFIG (%m)"); |
| 206 |
return -1; |
| 207 |
} |
| 208 |
|
| 209 |
reply=sock_comm(fm_fd_r, fm_fd_w, "FILTER"); |
| 210 |
if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){ |
| 211 |
logmessage(LOG_ERR, "Server error FILTER failed (%m)"); |
| 212 |
return -1; |
| 213 |
} |
| 214 |
reply_ptr=strchr(reply,';'); |
| 215 |
if (reply_ptr==NULL){ |
| 216 |
logmessage(LOG_ERR, "Incorrect data returned"); |
| 217 |
return -1; |
| 218 |
} |
| 219 |
*reply_ptr='\0'; |
| 220 |
if((ihost_state->server_fqdn=strdup(reply)) == NULL){ |
| 221 |
logmessage(LOG_ERR, "strdup failed (%m)"); |
| 222 |
return -1; |
| 223 |
} |
| 224 |
reply=reply_ptr + 1; |
| 225 |
reply_ptr=strchr(reply,';'); |
| 226 |
if (reply_ptr==NULL){ |
| 227 |
logmessage(LOG_ERR, "Incorrect data returned 2"); |
| 228 |
return -1; |
| 229 |
} |
| 230 |
*reply_ptr='\0'; |
| 231 |
ihost_state->server_udp_port=atoi(reply); |
| 232 |
reply=reply_ptr+1; |
| 233 |
ihost_state->server_tcp_port=atoi(reply); |
| 234 |
if ((ihost_state->server_tcp_port==0) || (ihost_state->server_udp_port==0)){ |
| 235 |
logmessage(LOG_ERR, "Incorrect data returned 3 "); |
| 236 |
return -1; |
| 237 |
} |
| 238 |
|
| 239 |
reply=sock_comm(fm_fd_r, fm_fd_w, "END"); |
| 240 |
if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){ |
| 241 |
logmessage(LOG_ERR, "Server error on END (%m)"); |
| 242 |
return -1; |
| 243 |
} |
| 244 |
|
| 245 |
if(fclose(fm_fd_r) !=0){ |
| 246 |
logmessage(LOG_ERR, "Failed to close read FD (%m)"); |
| 247 |
return -1; |
| 248 |
} |
| 249 |
if(fclose(fm_fd_w) !=0){ |
| 250 |
logmessage(LOG_ERR, "Failed to close write FD (%m)"); |
| 251 |
return -1; |
| 252 |
} |
| 253 |
|
| 254 |
return 0; |
| 255 |
} |
| 256 |
|
| 257 |
int heartbeat(ihost_state_t *ihost_state){ |
| 258 |
struct sockaddr_in addr; |
| 259 |
struct in_addr haddr; |
| 260 |
int sd; |
| 261 |
FILE *fm_fd_r, *fm_fd_w; |
| 262 |
char *reply; |
| 263 |
int exitcode=0; |
| 264 |
|
| 265 |
logmessage(LOG_DEBUG, "Setting up configure socket to %s on port %d", ihost_state->server_fqdn, ihost_state->server_tcp_port); |
| 266 |
if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) { |
| 267 |
logmessage(LOG_ERR, "Can't create AF_INET socket (%m)"); |
| 268 |
return -1; |
| 269 |
} |
| 270 |
|
| 271 |
if (get_host_addr(ihost_state->server_fqdn, &haddr) != 0){ |
| 272 |
logmessage(LOG_ERR, "Failed to resolve address %s (%m)", ihost_state->server_fqdn); |
| 273 |
return -1; |
| 274 |
} |
| 275 |
|
| 276 |
memset(&addr, 0, sizeof addr); |
| 277 |
addr.sin_family = AF_INET; |
| 278 |
memcpy(&addr.sin_addr, &haddr, sizeof haddr); |
| 279 |
addr.sin_port = htons(ihost_state->server_tcp_port); |
| 280 |
|
| 281 |
if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) { |
| 282 |
logmessage(LOG_ERR, "Failed to connect to %s on port %d (%m)", ihost_state->server_fqdn, ihost_state->server_tcp_port); |
| 283 |
return -1; |
| 284 |
} |
| 285 |
|
| 286 |
/* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */ |
| 287 |
if ((fm_fd_r=fdopen(sd,"r")) == NULL){ |
| 288 |
logmessage(LOG_ERR, "Failed to open stream (%m)"); |
| 289 |
return -1; |
| 290 |
} |
| 291 |
|
| 292 |
if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){ |
| 293 |
logmessage(LOG_ERR, "Failed to open stream (%m)"); |
| 294 |
return -1; |
| 295 |
} |
| 296 |
|
| 297 |
reply=sock_comm(fm_fd_r, fm_fd_w, "HEARTBEAT"); |
| 298 |
if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) { |
| 299 |
logmessage(LOG_ERR, "Server error on HEARTBEAT"); |
| 300 |
return -1; |
| 301 |
} |
| 302 |
|
| 303 |
reply=sock_comm(fm_fd_r, fm_fd_w, "CONFIG"); |
| 304 |
if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) { |
| 305 |
logmessage(LOG_ERR, "Server error on CONFIG"); |
| 306 |
return -1; |
| 307 |
} |
| 308 |
|
| 309 |
reply=sock_comm(fm_fd_r, fm_fd_w, ihost_state->files_list); |
| 310 |
if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) { |
| 311 |
logmessage(LOG_ERR, "Server error on fileslist"); |
| 312 |
return -1; |
| 313 |
} |
| 314 |
|
| 315 |
reply=sock_comm(fm_fd_r, fm_fd_w, ihost_state->last_modified); |
| 316 |
if (reply==NULL) { |
| 317 |
logmessage(LOG_ERR, "Server error NULL recieved on lastmodified"); |
| 318 |
return -1; |
| 319 |
} |
| 320 |
if (strncasecmp(reply, "ERROR", 5) == 0){ |
| 321 |
/* Means the config has changed */ |
| 322 |
logmessage(LOG_INFO, "Recieved ERROR from server for a reconfigure required"); |
| 323 |
exitcode=RECONFIGURE_RETURN_CODE; |
| 324 |
} |
| 325 |
|
| 326 |
reply=sock_comm(fm_fd_r, fm_fd_w, "KEY"); |
| 327 |
if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) { |
| 328 |
logmessage(LOG_ERR, "Server error on KEY"); |
| 329 |
return -1; |
| 330 |
} |
| 331 |
if (ihost_state->key!=NULL) free(ihost_state->key); |
| 332 |
|
| 333 |
if((ihost_state->key=strdup(reply)) == NULL){ |
| 334 |
logmessage(LOG_ERR, "strdup failed (%m)"); |
| 335 |
return -1; |
| 336 |
} |
| 337 |
|
| 338 |
reply=sock_comm(fm_fd_r, fm_fd_w, "ENDHEARTBEAT"); |
| 339 |
if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){ |
| 340 |
logmessage(LOG_ERR, "Server error on ENDHEARTBEAT (%m)"); |
| 341 |
return -1; |
| 342 |
} |
| 343 |
|
| 344 |
fflush(fm_fd_r); |
| 345 |
fflush(fm_fd_w); |
| 346 |
|
| 347 |
if(fclose(fm_fd_r) !=0){ |
| 348 |
logmessage(LOG_ERR, "Failed to close read FD (%m)"); |
| 349 |
return -1; |
| 350 |
} |
| 351 |
if(fclose(fm_fd_w) !=0){ |
| 352 |
logmessage(LOG_ERR, "Failed to close write FD (%m)"); |
| 353 |
return -1; |
| 354 |
} |
| 355 |
|
| 356 |
return exitcode; |
| 357 |
} |
| 358 |
|
| 359 |
char *stat_grab(ihost_state_t *ihost_state, int counter){ |
| 360 |
#define NUM_STATS 9 |
| 361 |
char *stats[NUM_STATS]; |
| 362 |
char *xml_data=NULL; |
| 363 |
char *xml_data_p; |
| 364 |
int xml_size=0; |
| 365 |
int x=0; |
| 366 |
|
| 367 |
logmessage(LOG_DEBUG,"get_cpu_stats"); |
| 368 |
stats[0]=get_cpu_stats(); |
| 369 |
logmessage(LOG_DEBUG,"get_disk_stats"); |
| 370 |
stats[1]=get_disk_stats(); |
| 371 |
logmessage(LOG_DEBUG,"get_load_stats"); |
| 372 |
stats[2]=get_load_stats(); |
| 373 |
logmessage(LOG_DEBUG,"get_memory_stats"); |
| 374 |
stats[3]=get_memory_stats(); |
| 375 |
logmessage(LOG_DEBUG,"get_os_info"); |
| 376 |
stats[4]=get_os_info(); |
| 377 |
logmessage(LOG_DEBUG,"get_page_stats"); |
| 378 |
stats[5]=get_page_stats(); |
| 379 |
logmessage(LOG_DEBUG,"get_process_stats"); |
| 380 |
stats[6]=get_process_stats(); |
| 381 |
logmessage(LOG_DEBUG,"get_swap_stats"); |
| 382 |
stats[7]=get_swap_stats(); |
| 383 |
logmessage(LOG_DEBUG,"get_user_stats"); |
| 384 |
stats[8]=get_user_stats(); |
| 385 |
|
| 386 |
|
| 387 |
for(x=0;x<NUM_STATS;x++){ |
| 388 |
if(stats[x]==NULL){ |
| 389 |
logmessage(LOG_ERR,"Function returned NULL"); |
| 390 |
return NULL; |
| 391 |
} |
| 392 |
xml_size+=strlen(stats[x]); |
| 393 |
} |
| 394 |
|
| 395 |
xml_data=malloc(xml_size+1); |
| 396 |
xml_data=strcpy(xml_data, stats[0]); |
| 397 |
free(stats[0]); |
| 398 |
for(x=1;x<NUM_STATS;x++){ |
| 399 |
strcat(xml_data, stats[x]); |
| 400 |
free(stats[x]); |
| 401 |
} |
| 402 |
|
| 403 |
xml_data_p=xml_data; |
| 404 |
xml_data=strf("<packet seq_no=\"%d\" machine_name=\"%s\" date=\"%ld\" type=\"data\" ip=\"%s\" key=\"%s\">%s</packet>", counter, ihost_state->my_fqdn, time(NULL), ihost_state->my_ip, ihost_state->key, xml_data); |
| 405 |
free(xml_data_p); |
| 406 |
|
| 407 |
logmessage(LOG_DEBUG,"Generated XML Data of : %s", xml_data); |
| 408 |
return xml_data; |
| 409 |
} |
| 410 |
|
| 411 |
int send_stats(ihost_state_t *ihost_state, char *data_stream){ |
| 412 |
struct sockaddr_in addr; |
| 413 |
struct in_addr haddr; |
| 414 |
|
| 415 |
int sd; |
| 416 |
size_t len; |
| 417 |
|
| 418 |
len=strlen(data_stream); |
| 419 |
if(len>UDP_MAX_PACKET_SIZE){ |
| 420 |
logmessage(LOG_ERR, "Too big to send to server. Please reconfigure client and server and recompile"); |
| 421 |
exit(1); |
| 422 |
} |
| 423 |
logmessage(LOG_DEBUG,"Resolving IP of server"); |
| 424 |
if (get_host_addr(ihost_state->server_fqdn, &haddr) != 0){ |
| 425 |
logmessage(LOG_ERR, "Failed to resolve address %s (%m)", ihost_state->server_fqdn); |
| 426 |
return -1; |
| 427 |
} |
| 428 |
logmessage(LOG_DEBUG,"Creating UDP socket to %s on %d",ihost_state->server_fqdn, ihost_state->server_udp_port); |
| 429 |
if((sd=socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0){ |
| 430 |
logmessage(LOG_ERR, "failed to create UDP socket (%m)"); |
| 431 |
return -1; |
| 432 |
} |
| 433 |
|
| 434 |
memset(&addr, 0, sizeof(addr)); |
| 435 |
addr.sin_family=AF_INET; |
| 436 |
memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr); |
| 437 |
addr.sin_port = htons(ihost_state->server_udp_port); |
| 438 |
|
| 439 |
logmessage(LOG_INFO,"Sending packet : %s", data_stream); |
| 440 |
if((sendto(sd, data_stream, len, 0, (struct sockaddr *) &addr, sizeof(addr))) != len){ |
| 441 |
logmessage(LOG_ERR, "Send the wrong number of bytes (%m)"); |
| 442 |
return -1; |
| 443 |
} |
| 444 |
|
| 445 |
close(sd); |
| 446 |
|
| 447 |
return 0; |
| 448 |
} |
| 449 |
|
| 450 |
void usage(char *progname){ |
| 451 |
fprintf(stderr, "Usage %s [options] server port\n", progname); |
| 452 |
fprintf(stderr, "Options\n"); |
| 453 |
fprintf(stderr, " -v Verbose, the more v flags the more verbose, eg -vv\n"); |
| 454 |
fprintf(stderr, " -d Daemon mode, self backgrounding\n"); |
| 455 |
fprintf(stderr, " -s Send errors to syslog\n"); |
| 456 |
fprintf(stderr, " -V Print version number\n"); |
| 457 |
fprintf(stderr, " -h Prints this help page\n"); |
| 458 |
exit(1); |
| 459 |
} |
| 460 |
|
| 461 |
int main(int argc, char **argv){ |
| 462 |
ihost_state_t ihost_state; |
| 463 |
int heartbeat_exit; |
| 464 |
int counter=0; |
| 465 |
long udp_time=0, tcp_time=0, stat_grab_time=0, cur_time=0; |
| 466 |
int sleep_delay=0; |
| 467 |
char *xml_stats; |
| 468 |
pid_t pid; |
| 469 |
int cmdopt; |
| 470 |
extern int optind; |
| 471 |
int verbose=0, daemon=0; |
| 472 |
extern int syslog_logging; |
| 473 |
extern int log_level; |
| 474 |
extern int cur_level; |
| 475 |
FILE *f; |
| 476 |
|
| 477 |
log_level=1; |
| 478 |
cur_level=1; |
| 479 |
syslog_logging=0; |
| 480 |
|
| 481 |
errf_set_ofunc(log_errors); |
| 482 |
/* NULL'ify so i can tell if i need to free it or not */ |
| 483 |
ihost_state.fm_host=NULL; |
| 484 |
ihost_state.my_fqdn=NULL; |
| 485 |
ihost_state.server_fqdn=NULL; |
| 486 |
ihost_state.last_modified=NULL; |
| 487 |
ihost_state.files_list=NULL; |
| 488 |
ihost_state.key=NULL; |
| 489 |
ihost_state.my_ip=NULL; |
| 490 |
|
| 491 |
errf_set_progname(argv[0]); |
| 492 |
|
| 493 |
|
| 494 |
while((cmdopt=getopt(argc, argv, "vdshV")) != -1){ |
| 495 |
switch(cmdopt){ |
| 496 |
case 'v': |
| 497 |
verbose++; |
| 498 |
break; |
| 499 |
|
| 500 |
case 'd': |
| 501 |
/* Force syslog logging since stderr will be closed in this case */ |
| 502 |
syslog_logging=1; |
| 503 |
daemon=1; |
| 504 |
break; |
| 505 |
|
| 506 |
case 's': |
| 507 |
syslog_logging=1; |
| 508 |
break; |
| 509 |
|
| 510 |
case 'h': |
| 511 |
usage(argv[0]); |
| 512 |
break; |
| 513 |
|
| 514 |
case 'V': |
| 515 |
errf("%s version %s",argv[0], VERSION_NO); |
| 516 |
break; |
| 517 |
|
| 518 |
default: |
| 519 |
usage(argv[0]); |
| 520 |
exit(1); |
| 521 |
} |
| 522 |
} |
| 523 |
|
| 524 |
if(argc!=optind+2){ |
| 525 |
usage(argv[0]); |
| 526 |
exit(1); |
| 527 |
} |
| 528 |
ihost_state.fm_host=argv[optind]; |
| 529 |
ihost_state.fm_port=atoi(argv[optind+1]); |
| 530 |
if(ihost_state.fm_port==0){ |
| 531 |
errf("Invalid port number"); |
| 532 |
usage(argv[0]); |
| 533 |
} |
| 534 |
|
| 535 |
if(daemon==1){ |
| 536 |
pid=fork(); |
| 537 |
if(pid==-1){ |
| 538 |
errf("Fork failed, can't background. Exiting"); |
| 539 |
exit(1); |
| 540 |
}else if(pid!=0){ |
| 541 |
/* Parent process */ |
| 542 |
return 0; |
| 543 |
} |
| 544 |
/* We should now be in the background*/ |
| 545 |
if(setsid()==-1){ |
| 546 |
errf("setsid failed (%m)"); |
| 547 |
exit(1); |
| 548 |
} |
| 549 |
fclose(stdin); |
| 550 |
fclose(stdout); |
| 551 |
fclose(stderr); |
| 552 |
} |
| 553 |
|
| 554 |
if(syslog_logging==1){ |
| 555 |
openlog(errf_get_progname(),0,LOG_ERR); |
| 556 |
setlogmask(LOG_UPTO(LOG_DEBUG)); |
| 557 |
} |
| 558 |
|
| 559 |
switch(verbose){ |
| 560 |
case 0: |
| 561 |
/* Critical errors + */ |
| 562 |
log_level=LOG_ERR; |
| 563 |
break; |
| 564 |
case 1: |
| 565 |
/* Recoverable errors */ |
| 566 |
log_level=LOG_WARNING; |
| 567 |
break; |
| 568 |
case 2: |
| 569 |
/* Print stuff like the XML packets */ |
| 570 |
log_level=LOG_INFO; |
| 571 |
break; |
| 572 |
default: |
| 573 |
/* Must have lots of v's */ |
| 574 |
/* Print out everything its doing */ |
| 575 |
log_level=LOG_DEBUG; |
| 576 |
break; |
| 577 |
} |
| 578 |
|
| 579 |
logmessage(LOG_DEBUG,"Writing PID FILE"); |
| 580 |
pid=getpid(); |
| 581 |
if((f=fopen(PID_FILE,"w")) == NULL){ |
| 582 |
logmessage(LOG_WARNING, "Failed to write PID file (%m)"); |
| 583 |
}else{ |
| 584 |
if((fprintf(f,"%d",(int)pid)) <= 0 ){ |
| 585 |
logmessage(LOG_WARNING, "Failed to write PID file (%m)"); |
| 586 |
} |
| 587 |
if((fclose(f))!=0){ |
| 588 |
logmessage(LOG_ERR, "failed to close PID file"); |
| 589 |
exit(1); |
| 590 |
} |
| 591 |
} |
| 592 |
|
| 593 |
if(ihost_configure(&ihost_state)!=0){ |
| 594 |
logmessage(LOG_ERR,"configure failed"); |
| 595 |
/* Ok, ideally we prob should have 2 copies of the structure and carry on if this |
| 596 |
happens.. But we dont :) (at the moment) */ |
| 597 |
exit(1); |
| 598 |
} |
| 599 |
|
| 600 |
for(;;){ |
| 601 |
cur_time=time(NULL); |
| 602 |
if(cur_time>=tcp_time){ |
| 603 |
logmessage(LOG_DEBUG,"Sending heartbeat"); |
| 604 |
heartbeat_exit=heartbeat(&ihost_state); |
| 605 |
if(heartbeat_exit==RECONFIGURE_RETURN_CODE){ |
| 606 |
logmessage(LOG_INFO,"heartbeat needs to be reconfigured"); |
| 607 |
ihost_configure(&ihost_state); |
| 608 |
udp_time=0; |
| 609 |
} |
| 610 |
if(heartbeat_exit==-1){ |
| 611 |
logmessage(LOG_ERR,"Heartbeat failed"); |
| 612 |
exit(1); |
| 613 |
} |
| 614 |
tcp_time=time(NULL)+ihost_state.tcp_update_time; |
| 615 |
logmessage(LOG_DEBUG,"next tcp time should be %d", tcp_time); |
| 616 |
} |
| 617 |
|
| 618 |
if(cur_time>=udp_time){ |
| 619 |
logmessage(LOG_DEBUG,"Sending udp data"); |
| 620 |
/* Work out how long it takes to get the stats for next time round |
| 621 |
so the sleep time can be adjusted accordingly */ |
| 622 |
stat_grab_time=time(NULL); |
| 623 |
if((xml_stats=stat_grab(&ihost_state, counter++)) == NULL){ |
| 624 |
logmessage(LOG_ERR,"Failed to get stats (%m)"); |
| 625 |
exit(1); |
| 626 |
} |
| 627 |
stat_grab_time=time(NULL)-stat_grab_time; |
| 628 |
send_stats(&ihost_state, xml_stats); |
| 629 |
free(xml_stats); |
| 630 |
udp_time=time(NULL)+ihost_state.udp_update_time-stat_grab_time; |
| 631 |
logmessage(LOG_DEBUG,"next udp time should be %d", udp_time); |
| 632 |
} |
| 633 |
|
| 634 |
if(tcp_time<udp_time){ |
| 635 |
sleep_delay=tcp_time-time(NULL); |
| 636 |
}else{ |
| 637 |
sleep_delay=udp_time-time(NULL); |
| 638 |
} |
| 639 |
logmessage(LOG_DEBUG,"Sleeping for %d", sleep_delay); |
| 640 |
if(sleep_delay>0) sleep(sleep_delay); |
| 641 |
} |
| 642 |
return 0; |
| 643 |
} |
| 644 |
|
