# | Line 1 | Line 1 | |
---|---|---|
1 | + | /* |
2 | + | * i-scream central monitoring system |
3 | + | * Copyright (C) 2000-2002 i-scream |
4 | + | * |
5 | + | * This program is free software; you can redistribute it and/or |
6 | + | * modify it under the terms of the GNU General Public License |
7 | + | * as published by the Free Software Foundation; either version 2 |
8 | + | * of the License, or (at your option) any later version. |
9 | + | * |
10 | + | * This program is distributed in the hope that it will be useful, |
11 | + | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | + | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | + | * GNU General Public License for more details. |
14 | + | * |
15 | + | * You should have received a copy of the GNU General Public License |
16 | + | * along with this program; if not, write to the Free Software |
17 | + | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
18 | + | */ |
19 | + | |
20 | #include <stdio.h> | |
21 | #include <sys/socket.h> | |
22 | #include <stdlib.h> | |
23 | #include <unistd.h> | |
24 | #include <syslog.h> | |
25 | #include <netinet/in.h> | |
26 | < | #include <ukcprog.h> |
26 | > | #include "ukcprog.h" |
27 | #include <netdb.h> | |
28 | #include <strings.h> | |
29 | + | #include "statgrab.h" |
30 | ||
31 | + | #define RECONFIGURE_RETURN_CODE 2 |
32 | + | #define UDP_MAX_PACKET_SIZE 8192 |
33 | + | |
34 | typedef struct{ | |
35 | int fm_port; | |
36 | char *fm_host; | |
# | Line 16 | Line 39 | typedef struct{ | |
39 | char *server_fqdn; | |
40 | int server_udp_port; | |
41 | int server_tcp_port; | |
42 | < | long last_modified; |
42 | > | char *last_modified; |
43 | char *files_list; | |
44 | char *key; | |
45 | int udp_update_time; | |
# | Line 24 | Line 47 | typedef struct{ | |
47 | ||
48 | }ihost_state_t; | |
49 | ||
50 | < | char* sock_comm(FILE *f_r, FILE *f_w, char* sendString){ |
50 | > | char* sock_comm(FILE *f_r, FILE *f_w, char *sendString){ |
51 | char *reply; | |
52 | < | fprintf(f_w, "%s", sendString); |
52 | > | fprintf(f_w, "%s\n", sendString); |
53 | fflush(f_w); | |
54 | reply=fpgetline(f_r); | |
55 | /* Returns pointer to static buffer */ | |
# | Line 41 | Line 64 | int ihost_configure(ihost_state_t *ihost_state){ | |
64 | char *reply; | |
65 | char *reply_ptr; | |
66 | ||
67 | + | /* Check to see if anything needs to be free'd */ |
68 | + | if (ihost_state->my_fqdn!=NULL) free(ihost_state->my_fqdn); |
69 | + | if (ihost_state->server_fqdn!=NULL) free(ihost_state->server_fqdn); |
70 | + | if (ihost_state->last_modified!=NULL) free(ihost_state->last_modified); |
71 | + | if (ihost_state->files_list!=NULL) free(ihost_state->files_list); |
72 | + | |
73 | if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) { | |
74 | errf("Can't create AF_INET socket (%m)"); | |
75 | return -1; | |
# | Line 51 | Line 80 | int ihost_configure(ihost_state_t *ihost_state){ | |
80 | return -1; | |
81 | } | |
82 | ||
83 | < | memset((char *)&addr, 0, sizeof addr); |
83 | > | memset(&addr, 0, sizeof addr); |
84 | addr.sin_family = AF_INET; | |
85 | < | memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr); |
85 | > | memcpy(&addr.sin_addr, &haddr, sizeof haddr); |
86 | addr.sin_port = htons(ihost_state->fm_port); | |
87 | ||
88 | if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) { | |
# | Line 63 | Line 92 | int ihost_configure(ihost_state_t *ihost_state){ | |
92 | ||
93 | /* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */ | |
94 | if ((fm_fd_r=fdopen(sd,"r")) == NULL){ | |
95 | < | errf("Failed to open stream (%m)"); |
95 | > | errf("Failed to open read stream (%m)"); |
96 | return -1; | |
97 | } | |
98 | ||
99 | if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){ | |
100 | < | errf("Failed to open stream (%m)"); |
100 | > | errf("Failed to open write stream (%m)"); |
101 | return -1; | |
102 | } | |
103 | ||
104 | < | reply=sock_comm(fm_fd_r, fm_fd_w, "STARTCONFIG\n"); |
104 | > | reply=sock_comm(fm_fd_r, fm_fd_w, "STARTCONFIG"); |
105 | if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) { | |
106 | errf("Server error"); | |
107 | return -1; | |
108 | } | |
109 | ||
110 | < | reply=sock_comm(fm_fd_r, fm_fd_w, "LASTMODIFIED\n"); |
110 | > | reply=sock_comm(fm_fd_r, fm_fd_w, "LASTMODIFIED"); |
111 | if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){ | |
112 | errf("Server error (%m)"); | |
113 | return -1; | |
114 | } | |
115 | < | ihost_state->last_modified=atol(reply); |
115 | > | if((ihost_state->last_modified=strdup(reply)) == NULL){ |
116 | > | errf("strdup failed (%m)"); |
117 | > | return -1; |
118 | > | } |
119 | ||
120 | < | reply=sock_comm(fm_fd_r, fm_fd_w, "FILELIST\n"); |
120 | > | reply=sock_comm(fm_fd_r, fm_fd_w, "FILELIST"); |
121 | if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){ | |
122 | errf("Server error (%m)"); | |
123 | return -1; | |
124 | } | |
125 | < | if((ihost_state->files_list=strdup(reply)) == NULL){ |
126 | < | errf("strdup failed (%m)"); |
127 | < | return -1; |
128 | < | } |
125 | > | if((ihost_state->files_list=strdup(reply)) == NULL){ |
126 | > | errf("strdup failed (%m)"); |
127 | > | return -1; |
128 | > | } |
129 | ||
130 | < | reply=sock_comm(fm_fd_r, fm_fd_w, "FQDN\n"); |
130 | > | reply=sock_comm(fm_fd_r, fm_fd_w, "FQDN"); |
131 | if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){ | |
132 | errf("Server error (%m)"); | |
133 | return -1; | |
# | Line 105 | Line 137 | int ihost_configure(ihost_state_t *ihost_state){ | |
137 | return -1; | |
138 | } | |
139 | ||
140 | < | reply=sock_comm(fm_fd_r, fm_fd_w, "UDPUpdateTime\n"); |
140 | > | reply=sock_comm(fm_fd_r, fm_fd_w, "UDPUpdateTime"); |
141 | if(reply== NULL){ | |
142 | errf("Server error (%m)"); | |
143 | return -1; | |
# | Line 114 | Line 146 | int ihost_configure(ihost_state_t *ihost_state){ | |
146 | ihost_state->udp_update_time=atoi(reply); | |
147 | } | |
148 | ||
149 | < | reply=sock_comm(fm_fd_r, fm_fd_w, "TCPUpdateTime\n"); |
149 | > | reply=sock_comm(fm_fd_r, fm_fd_w, "TCPUpdateTime"); |
150 | if(reply== NULL){ | |
151 | errf("Server error (%m)"); | |
152 | return -1; | |
# | Line 123 | Line 155 | int ihost_configure(ihost_state_t *ihost_state){ | |
155 | ihost_state->tcp_update_time=atoi(reply); | |
156 | } | |
157 | ||
158 | < | reply=sock_comm(fm_fd_r, fm_fd_w, "ENDCONFIG\n"); |
158 | > | reply=sock_comm(fm_fd_r, fm_fd_w, "ENDCONFIG"); |
159 | if(reply== NULL){ | |
160 | errf("Server error (%m)"); | |
161 | return -1; | |
162 | } | |
163 | ||
164 | < | reply=sock_comm(fm_fd_r, fm_fd_w, "FILTER\n"); |
164 | > | reply=sock_comm(fm_fd_r, fm_fd_w, "FILTER"); |
165 | if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){ | |
166 | < | errf("Server error (%m)"); |
166 | > | errf("Server error FILTER failed (%m)"); |
167 | return -1; | |
168 | } | |
169 | reply_ptr=strchr(reply,';'); | |
# | Line 144 | Line 176 | int ihost_configure(ihost_state_t *ihost_state){ | |
176 | errf("strdup failed (%m)"); | |
177 | return -1; | |
178 | } | |
179 | < | reply=++reply_ptr; |
179 | > | reply=reply_ptr + 1; |
180 | reply_ptr=strchr(reply,';'); | |
181 | if (reply_ptr==NULL){ | |
182 | errf("Incorrect data returned 2"); | |
# | Line 152 | Line 184 | int ihost_configure(ihost_state_t *ihost_state){ | |
184 | } | |
185 | *reply_ptr='\0'; | |
186 | ihost_state->server_udp_port=atoi(reply); | |
187 | < | reply=++reply_ptr; |
187 | > | reply=reply_ptr+1; |
188 | ihost_state->server_tcp_port=atoi(reply); | |
189 | if ((ihost_state->server_tcp_port==0) || (ihost_state->server_udp_port==0)){ | |
190 | errf("Incorrect data returned 3 "); | |
191 | return -1; | |
192 | } | |
193 | ||
194 | < | reply=sock_comm(fm_fd_r, fm_fd_w, "END\n"); |
194 | > | reply=sock_comm(fm_fd_r, fm_fd_w, "END"); |
195 | if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){ | |
196 | errf("Server error (%m)"); | |
197 | return -1; | |
198 | } | |
199 | ||
200 | if(fclose(fm_fd_r) !=0){ | |
201 | < | errf("Failed to close FD (%m)"); |
201 | > | errf("Failed to close read FD (%m)"); |
202 | return -1; | |
203 | } | |
204 | if(fclose(fm_fd_w) !=0){ | |
205 | < | errf("Failed to close FD (%m)"); |
205 | > | errf("Failed to close write FD (%m)"); |
206 | return -1; | |
207 | } | |
208 | ||
209 | return 0; | |
210 | } | |
211 | ||
212 | + | int heartbeat(ihost_state_t *ihost_state){ |
213 | + | struct sockaddr_in addr; |
214 | + | struct in_addr haddr; |
215 | + | int sd; |
216 | + | FILE *fm_fd_r, *fm_fd_w; |
217 | + | char *reply; |
218 | + | int exitcode=0; |
219 | + | |
220 | + | if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) { |
221 | + | errf("Can't create AF_INET socket (%m)"); |
222 | + | return -1; |
223 | + | } |
224 | + | |
225 | + | if (get_host_addr(ihost_state->server_fqdn, &haddr) != 0){ |
226 | + | errf("Failed to resolve address %s (%m)", ihost_state->fm_host); |
227 | + | return -1; |
228 | + | } |
229 | + | |
230 | + | memset(&addr, 0, sizeof addr); |
231 | + | addr.sin_family = AF_INET; |
232 | + | memcpy(&addr.sin_addr, &haddr, sizeof haddr); |
233 | + | addr.sin_port = htons(ihost_state->server_tcp_port); |
234 | + | |
235 | + | if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) { |
236 | + | errf("Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port); |
237 | + | return -1; |
238 | + | } |
239 | + | |
240 | + | /* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */ |
241 | + | if ((fm_fd_r=fdopen(sd,"r")) == NULL){ |
242 | + | errf("Failed to open stream (%m)"); |
243 | + | return -1; |
244 | + | } |
245 | + | |
246 | + | if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){ |
247 | + | errf("Failed to open stream (%m)"); |
248 | + | return -1; |
249 | + | } |
250 | + | |
251 | + | reply=sock_comm(fm_fd_r, fm_fd_w, "HEARTBEAT"); |
252 | + | if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) { |
253 | + | errf("Server error"); |
254 | + | return -1; |
255 | + | } |
256 | + | |
257 | + | reply=sock_comm(fm_fd_r, fm_fd_w, "CONFIG"); |
258 | + | if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) { |
259 | + | errf("Server error"); |
260 | + | return -1; |
261 | + | } |
262 | + | |
263 | + | reply=sock_comm(fm_fd_r, fm_fd_w, ihost_state->files_list); |
264 | + | if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) { |
265 | + | errf("Server error"); |
266 | + | return -1; |
267 | + | } |
268 | + | |
269 | + | reply=sock_comm(fm_fd_r, fm_fd_w, ihost_state->last_modified); |
270 | + | if (reply==NULL) { |
271 | + | errf("Server error"); |
272 | + | return -1; |
273 | + | } |
274 | + | if (strncasecmp(reply, "ERROR", 5) == 0){ |
275 | + | /* Means the config has changed */ |
276 | + | exitcode=RECONFIGURE_RETURN_CODE; |
277 | + | } |
278 | + | reply=sock_comm(fm_fd_r, fm_fd_w, "KEY"); |
279 | + | if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) { |
280 | + | errf("Server error"); |
281 | + | return -1; |
282 | + | } |
283 | + | if (ihost_state->key!=NULL) free(ihost_state->key); |
284 | + | |
285 | + | if((ihost_state->key=strdup(reply)) == NULL){ |
286 | + | errf("strdup failed (%m)"); |
287 | + | return -1; |
288 | + | } |
289 | + | |
290 | + | reply=sock_comm(fm_fd_r, fm_fd_w, "ENDHEARTBEAT"); |
291 | + | if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){ |
292 | + | errf("Server error (%m)"); |
293 | + | return -1; |
294 | + | } |
295 | + | |
296 | + | fflush(fm_fd_r); |
297 | + | fflush(fm_fd_w); |
298 | + | |
299 | + | if(fclose(fm_fd_r) !=0){ |
300 | + | errf("Failed to close read FD (%m)"); |
301 | + | return -1; |
302 | + | } |
303 | + | if(fclose(fm_fd_w) !=0){ |
304 | + | errf("Failed to close write FD (%m)"); |
305 | + | return -1; |
306 | + | } |
307 | + | |
308 | + | return exitcode; |
309 | + | } |
310 | + | |
311 | + | char *stat_grab(ihost_state_t *ihost_state, int counter){ |
312 | + | #define NUM_STATS 9 |
313 | + | char *stats[NUM_STATS]; |
314 | + | char *xml_data=NULL; |
315 | + | char *xml_data_p; |
316 | + | int x=0; |
317 | + | |
318 | + | stats[0]=get_cpu_stats(); |
319 | + | stats[1]=get_disk_stats(); |
320 | + | stats[2]=get_load_stats(); |
321 | + | stats[3]=get_memory_stats(); |
322 | + | stats[4]=get_os_info(); |
323 | + | stats[5]=get_page_stats(); |
324 | + | stats[6]=get_process_stats(); |
325 | + | stats[7]=get_swap_stats(); |
326 | + | stats[8]=get_user_stats(); |
327 | + | |
328 | + | for(;x<NUM_STATS;x++){ |
329 | + | if(stats[x]==NULL){ |
330 | + | return NULL; |
331 | + | } |
332 | + | if(xml_data==NULL){ |
333 | + | if((xml_data=strf("%s", stats[x])) == NULL){ |
334 | + | errf("str failed (%m)"); |
335 | + | return NULL; |
336 | + | } |
337 | + | }else{ |
338 | + | xml_data_p=xml_data; |
339 | + | if((xml_data=strf("%s%s", xml_data, stats[x])) == NULL){ |
340 | + | errf("str failed (%m)"); |
341 | + | return NULL; |
342 | + | } |
343 | + | free(xml_data_p); |
344 | + | } |
345 | + | free(stats[x]); |
346 | + | } |
347 | + | xml_data_p=xml_data; |
348 | + | 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), "127.0.0.1", ihost_state->key, xml_data); |
349 | + | free(xml_data_p); |
350 | + | |
351 | + | return xml_data; |
352 | + | } |
353 | + | |
354 | + | int send_stats(ihost_state_t *ihost_state, char *data_stream){ |
355 | + | struct sockaddr_in addr; |
356 | + | struct in_addr haddr; |
357 | + | |
358 | + | int sd; |
359 | + | size_t len; |
360 | + | |
361 | + | len=strlen(data_stream); |
362 | + | if(len>UDP_MAX_PACKET_SIZE){ |
363 | + | errf("Too big to send to server. Please reconfigure client and server and recompile"); |
364 | + | exit(1); |
365 | + | } |
366 | + | |
367 | + | if (get_host_addr(ihost_state->server_fqdn, &haddr) != 0){ |
368 | + | errf("Failed to resolve address %s (%m)", ihost_state->fm_host); |
369 | + | return -1; |
370 | + | } |
371 | + | |
372 | + | if((sd=socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0){ |
373 | + | errf("failed to create UDP socket (%m)"); |
374 | + | return -1; |
375 | + | } |
376 | + | |
377 | + | memset(&addr, 0, sizeof(addr)); |
378 | + | addr.sin_family=AF_INET; |
379 | + | memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr); |
380 | + | addr.sin_port = htons(ihost_state->server_udp_port); |
381 | + | |
382 | + | if((sendto(sd, data_stream, len, 0, (struct sockaddr *) &addr, sizeof(addr))) != len){ |
383 | + | errf("Send the wrong number of bytes (%m)"); |
384 | + | return -1; |
385 | + | } |
386 | + | |
387 | + | close(sd); |
388 | + | |
389 | + | return 0; |
390 | + | } |
391 | + | |
392 | int main(int argc, char **argv){ | |
393 | ihost_state_t ihost_state; | |
394 | + | int heartbeat_exit; |
395 | + | int counter=0; |
396 | + | long udp_time=0, tcp_time=0, stat_grab_time=0, cur_time=0; |
397 | + | int sleep_delay=0; |
398 | + | char *xml_stats; |
399 | + | |
400 | + | /* NULL'ify so i can tell if i need to free it or not */ |
401 | + | ihost_state.fm_host=NULL; |
402 | + | ihost_state.my_fqdn=NULL; |
403 | + | ihost_state.server_fqdn=NULL; |
404 | + | ihost_state.last_modified=NULL; |
405 | + | ihost_state.files_list=NULL; |
406 | + | ihost_state.key=NULL; |
407 | + | |
408 | errf_set_progname(argv[0]); | |
409 | if(argc!=3){ | |
410 | errf_usage("<host> <port>"); | |
# | Line 190 | Line 416 | int main(int argc, char **argv){ | |
416 | ||
417 | if(ihost_configure(&ihost_state)!=0){ | |
418 | errf("configure failed"); | |
419 | + | /* Ok, ideally we prob should have 2 copies of the structure and carry on if this |
420 | + | happens.. But we dont :) (at the moment) */ |
421 | + | exit(1); |
422 | } | |
423 | ||
424 | + | for(;;){ |
425 | + | cur_time=time(NULL); |
426 | + | if(cur_time>=tcp_time){ |
427 | + | /*printf("sending TCP\n");*/ |
428 | + | heartbeat_exit=heartbeat(&ihost_state); |
429 | + | if(heartbeat_exit==RECONFIGURE_RETURN_CODE){ |
430 | + | /*errf("heartbeat needs to be reconfigured");*/ |
431 | + | ihost_configure(&ihost_state); |
432 | + | /* So udp doesn't wait til next sending before updating */ |
433 | + | udp_time=0; |
434 | + | } |
435 | + | if(heartbeat_exit==-1){ |
436 | + | errf("ah crap"); |
437 | + | exit(1); |
438 | + | } |
439 | + | tcp_time=time(NULL)+ihost_state.tcp_update_time; |
440 | + | } |
441 | + | |
442 | + | if(cur_time>=udp_time){ |
443 | + | /*printf("sending UDP\n");*/ |
444 | + | stat_grab_time=time(NULL); |
445 | + | if((xml_stats=stat_grab(&ihost_state, counter)) == NULL){ |
446 | + | errf("Failed to get stats (%m)"); |
447 | + | exit(1); |
448 | + | } |
449 | + | stat_grab_time=time(NULL)-stat_grab_time; |
450 | + | send_stats(&ihost_state, xml_stats); |
451 | + | free(xml_stats); |
452 | + | udp_time=time(NULL)+ihost_state.udp_update_time-stat_grab_time; |
453 | + | } |
454 | + | |
455 | + | if(tcp_time<udp_time){ |
456 | + | sleep_delay=tcp_time-time(NULL); |
457 | + | }else{ |
458 | + | sleep_delay=udp_time-time(NULL); |
459 | + | } |
460 | + | |
461 | + | /*printf("tcp epoc: %ld \t udp epoc: %ld\ntime:%ld \tsleeping: %d\n", tcp_time, udp_time, time(NULL), sleep_delay);*/ |
462 | + | if(sleep_delay>0) sleep(sleep_delay); |
463 | + | } |
464 | return 0; | |
465 | } | |
466 |
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