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root/i-scream/projects/cms/source/ihost/ihost.c

Comparing projects/cms/source/ihost/ihost.c (file contents):
Revision 1.7 by pajs, Mon May 13 09:22:02 2002 UTC vs.
Revision 1.15 by pajs, Sun May 19 15:14:31 2002 UTC

#	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>
2	–	#include <sys/socket.h>
21		#include <stdlib.h>
22		#include <unistd.h>
23		#include <syslog.h>
24		#include <netinet/in.h>
25	<	#include <ukcprog.h>
25	>	#include "ukcprog.h"
26		#include <netdb.h>
27	<	#include <strings.h>
27	>	#include <string.h>
28	>	#include "statgrab.h"
29	>	#include <time.h>
30	>	#include <sys/socket.h>
31
32		#define RECONFIGURE_RETURN_CODE 2
33	+	#define UDP_MAX_PACKET_SIZE 8192
34
35		typedef struct{
36		int fm_port;
#	Line 59 | Line 81 | int ihost_configure(ihost_state_t *ihost_state){
81		return -1;
82		}
83
84	<	memset((char *)&addr, 0, sizeof addr);
84	>	memset(&addr, 0, sizeof addr);
85		addr.sin_family = AF_INET;
86	<	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
86	>	memcpy(&addr.sin_addr, &haddr, sizeof haddr);
87		addr.sin_port =  htons(ihost_state->fm_port);
88
89		if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
#	Line 71 | Line 93 | int ihost_configure(ihost_state_t *ihost_state){
93
94		/* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */
95		if ((fm_fd_r=fdopen(sd,"r")) == NULL){
96	<	errf("Failed to open stream (%m)");
96	>	errf("Failed to open read stream (%m)");
97		return -1;
98		}
99
100		if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){
101	<	errf("Failed to open stream (%m)");
101	>	errf("Failed to open write stream (%m)");
102		return -1;
103		}
104
#	Line 142 | Line 164 | int ihost_configure(ihost_state_t *ihost_state){
164
165		reply=sock_comm(fm_fd_r, fm_fd_w, "FILTER");
166		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
167	<	errf("Server error (%m)");
167	>	errf("Server error FILTER failed (%m)");
168		return -1;
169		}
170		reply_ptr=strchr(reply,';');
#	Line 155 | Line 177 | int ihost_configure(ihost_state_t *ihost_state){
177		errf("strdup failed (%m)");
178		return -1;
179		}
180	<	reply=++reply_ptr;
180	>	reply=reply_ptr + 1;
181		reply_ptr=strchr(reply,';');
182		if (reply_ptr==NULL){
183		errf("Incorrect data returned 2");
#	Line 163 | Line 185 | int ihost_configure(ihost_state_t *ihost_state){
185		}
186		*reply_ptr='\0';
187		ihost_state->server_udp_port=atoi(reply);
188	<	reply=++reply_ptr;
188	>	reply=reply_ptr+1;
189		ihost_state->server_tcp_port=atoi(reply);
190		if ((ihost_state->server_tcp_port==0) || (ihost_state->server_udp_port==0)){
191		errf("Incorrect data returned 3 ");
#	Line 177 | Line 199 | int ihost_configure(ihost_state_t *ihost_state){
199		}
200
201		if(fclose(fm_fd_r) !=0){
202	<	errf("Failed to close FD (%m)");
202	>	errf("Failed to close read FD (%m)");
203		return -1;
204		}
205		if(fclose(fm_fd_w) !=0){
206	<	errf("Failed to close FD (%m)");
206	>	errf("Failed to close write FD (%m)");
207		return -1;
208		}
209
#	Line 206 | Line 228 | int heartbeat(ihost_state_t *ihost_state){
228		return -1;
229		}
230
231	<	memset((char *)&addr, 0, sizeof addr);
231	>	memset(&addr, 0, sizeof addr);
232		addr.sin_family = AF_INET;
233	<	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
233	>	memcpy(&addr.sin_addr, &haddr, sizeof haddr);
234		addr.sin_port =  htons(ihost_state->server_tcp_port);
235
236		if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
#	Line 232 | Line 254 | int heartbeat(ihost_state_t *ihost_state){
254		errf("Server error");
255		return -1;
256		}
257	<	if (ihost_state->fm_host!=NULL) free(ihost_state->fm_host);
257	>
258		reply=sock_comm(fm_fd_r, fm_fd_w, "CONFIG");
259		if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
260		errf("Server error");
#	Line 272 | Line 294 | int heartbeat(ihost_state_t *ihost_state){
294		return -1;
295		}
296
297	+	fflush(fm_fd_r);
298	+	fflush(fm_fd_w);
299	+
300		if(fclose(fm_fd_r) !=0){
301	<	errf("Failed to close FD (%m)");
301	>	errf("Failed to close read FD (%m)");
302		return -1;
303		}
304		if(fclose(fm_fd_w) !=0){
305	<	errf("Failed to close FD (%m)");
305	>	errf("Failed to close write FD (%m)");
306		return -1;
307		}
308
309		return exitcode;
310		}
311
312	+	char *stat_grab(ihost_state_t *ihost_state, int counter){
313	+	#define NUM_STATS 9
314	+	char *stats[NUM_STATS];
315	+	char *xml_data=NULL;
316	+	char *xml_data_p;
317	+	int x=0;
318	+
319	+	stats[0]=get_cpu_stats();
320	+	stats[1]=get_disk_stats();
321	+	stats[2]=get_load_stats();
322	+	stats[3]=get_memory_stats();
323	+	stats[4]=get_os_info();
324	+	stats[5]=get_page_stats();
325	+	stats[6]=get_process_stats();
326	+	stats[7]=get_swap_stats();
327	+	stats[8]=get_user_stats();
328
329	+	for(;x<NUM_STATS;x++){
330	+	if(stats[x]==NULL){
331	+	return NULL;
332	+	}
333	+	if(xml_data==NULL){
334	+	if((xml_data=strf("%s", stats[x])) == NULL){
335	+	errf("str failed (%m)");
336	+	return NULL;
337	+	}
338	+	}else{
339	+	xml_data_p=xml_data;
340	+	if((xml_data=strf("%s%s", xml_data, stats[x])) == NULL){
341	+	errf("str failed (%m)");
342	+	return NULL;
343	+	}
344	+	free(xml_data_p);
345	+	}
346	+	free(stats[x]);
347	+	}
348	+	xml_data_p=xml_data;
349	+	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);
350	+	free(xml_data_p);
351	+
352	+	return xml_data;
353	+	}
354	+
355	+	int send_stats(ihost_state_t *ihost_state, char *data_stream){
356	+	struct sockaddr_in addr;
357	+	struct in_addr haddr;
358	+
359	+	int sd;
360	+	size_t len;
361	+
362	+	len=strlen(data_stream);
363	+	if(len>UDP_MAX_PACKET_SIZE){
364	+	errf("Too big to send to server. Please reconfigure client and server and recompile");
365	+	exit(1);
366	+	}
367	+
368	+	if (get_host_addr(ihost_state->server_fqdn, &haddr) != 0){
369	+	errf("Failed to resolve address %s (%m)", ihost_state->fm_host);
370	+	return -1;
371	+	}
372	+
373	+	if((sd=socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0){
374	+	errf("failed to create UDP socket (%m)");
375	+	return -1;
376	+	}
377	+
378	+	memset(&addr, 0, sizeof(addr));
379	+	addr.sin_family=AF_INET;
380	+	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
381	+	addr.sin_port =  htons(ihost_state->server_udp_port);
382	+
383	+	if((sendto(sd, data_stream, len, 0, (struct sockaddr *) &addr, sizeof(addr))) != len){
384	+	errf("Send the wrong number of bytes (%m)");
385	+	return -1;
386	+	}
387	+
388	+	close(sd);
389	+
390	+	return 0;
391	+	}
392	+
393		int main(int argc, char **argv){
394		ihost_state_t ihost_state;
395		int heartbeat_exit;
396		int counter=0;
397	+	long udp_time=0, tcp_time=0, stat_grab_time=0, cur_time=0;
398	+	int sleep_delay=0;
399	+	char *xml_stats;
400
293	–
401		/* NULL'ify so i can tell if i need to free it or not */
402		ihost_state.fm_host=NULL;
403		ihost_state.my_fqdn=NULL;
#	Line 315 | Line 422 | int main(int argc, char **argv){
422		exit(1);
423		}
424
425	<	while(TRUE){
425	>	for(;;){
426	>	cur_time=time(NULL);
427	>	if(cur_time>=tcp_time){
428	>	/*printf("sending TCP\n");*/
429	>	heartbeat_exit=heartbeat(&ihost_state);
430	>	if(heartbeat_exit==RECONFIGURE_RETURN_CODE){
431	>	/*errf("heartbeat needs to be reconfigured");*/
432	>	ihost_configure(&ihost_state);
433	>	/* So udp doesn't wait til next sending before updating */
434	>	udp_time=0;
435	>	}
436	>	if(heartbeat_exit==-1){
437	>	errf("ah crap");
438	>	exit(1);
439	>	}
440	>	tcp_time=time(NULL)+ihost_state.tcp_update_time;
441	>	}
442
443	<	heartbeat_exit=heartbeat(&ihost_state);
444	<	if(heartbeat_exit==RECONFIGURE_RETURN_CODE){
445	<	errf("heartbeat needs to be reconfigured");
446	<	ihost_configure(&ihost_state);
443	>	if(cur_time>=udp_time){
444	>	/*printf("sending UDP\n");*/
445	>	stat_grab_time=time(NULL);
446	>	if((xml_stats=stat_grab(&ihost_state, counter++)) == NULL){
447	>	errf("Failed to get stats (%m)");
448	>	exit(1);
449	>	}
450	>	stat_grab_time=time(NULL)-stat_grab_time;
451	>	send_stats(&ihost_state, xml_stats);
452	>	free(xml_stats);
453	>	udp_time=time(NULL)+ihost_state.udp_update_time-stat_grab_time;
454		}
455	<	if(heartbeat_exit==-1){
456	<	errf("ah crap");
457	<	exit(1);
458	<	}
459	<	printf("Count : %d\n",counter++);
460	<	printf("waiting %d\n",ihost_state.tcp_update_time);
461	<	sleep(ihost_state.tcp_update_time);
455	>
456	>	if(tcp_time<udp_time){
457	>	sleep_delay=tcp_time-time(NULL);
458	>	}else{
459	>	sleep_delay=udp_time-time(NULL);
460	>	}
461	>
462	>	/*printf("tcp epoc: %ld \t udp epoc: %ld\ntime:%ld \tsleeping: %d\n", tcp_time, udp_time, time(NULL), sleep_delay);*/
463	>	if(sleep_delay>0) sleep(sleep_delay);
464		}
465		return 0;
466		}

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