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

Comparing projects/cms/source/ihost/ihost.c (file contents):
Revision 1.1 by pajs, Fri May 10 17:11:30 2002 UTC vs.
Revision 1.29 by tdb, Mon Mar 3 12:32:35 2003 UTC

#	Line 1 | Line 1
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>
2	–	#include <sys/socket.h>
26		#include <stdlib.h>
27		#include <unistd.h>
28	<	#include <syslog.h>
29	<	#include <netinet/in.h>
30	<	#include <ukcprog.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>
9	–	#include <strings.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 fm_port;
45	<	char *fm_host;
46	<
47	<	char *my_fqdn;
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	<	int server_tcp_port;
53	<	long last_modified;
54	<	char *files_list;
55	<	char *key;
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 tcp_update_time;
58	>	//      int config_ttl;
59
60	+	time_t config_ttl;
61	+
62		}ihost_state_t;
63
64	<	char* sock_comm(FILE *f, char* sendString){
65	<	char *reply;
64	>	typedef struct{
65	>	int verbose;
66	>	int daemon;
67
68	<	fprintf(f, sendString);
69	<	fflush(f);
32	<	reply=fpgetline(f);
33	<	/* Returns pointer to static buffer */
34	<	return reply;
35	<	}
68	>	FILE *log;
69	>	}ihost_config_t;
70
71	<	int ihost_configure(ihost_state_t *ihost_state){
71	>	typedef struct{
72		struct sockaddr_in addr;
73	<	struct in_addr haddr;
74	<	int sd;
41	<	FILE *fm_fd;
42	<	char *reply;
73	>	int sock;
74	>	}udp_sockinfo_t;
75
76	<	if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) {
45	<	errf("Can't create AF_INET socket (%m)");
46	<	return -1;
47	<	}
76	>	ihost_config_t ihost_config;
77
78	<	if (get_host_addr(ihost_state->fm_host, &haddr) != 0){
79	<	errf("Failed to resolve address %s (%m)", ihost_state->fm_host);
80	<	return -1;
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	<	memset((char *)&addr, 0, sizeof addr);
98	<	addr.sin_family = AF_INET;
99	<	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
100	<	addr.sin_port =  htons(ihost_state->fm_port);
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	<	if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
105	<	errf("Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
106	<	return -1;
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	<	if ((fm_fd=fdopen(sd,"r+")) == NULL){
116	<	errf("Failed to open stream (%m)");
117	<	return -1;
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	<	reply=sock_comm(fm_fd, "STARTCONFIG\n");
126	<	if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
127	<	errf("Server error");
72	<	return -1;
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	<	reply=sock_comm(fm_fd, "LASTMODIFIED\n");
131	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5))){
132	<	errf("Server error (%m)");
133	<	return -1;
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	<	ihost_state->last_modified=atol(reply);
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	<	reply=sock_comm(fm_fd, "FILELIST\n");
189	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5))){
190	<	errf("Server error (%m)");
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	<	if((ihost_state->files_list=strdup(reply)) == NULL){
201	<	errf("strdup failed (%m)");
202	<	return -1;
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	>	tcp_con=create_tcp_connection(ihost_state->filtermanager_host, ihost_state->filtermanager_port);
224	>
225	>	if(ihost_state->file_list!=NULL || ihost_state->last_modified!=NULL){
226	>	if(tcp_con==NULL){
227	>	goto error;
228	>	}
229	>
230	>	if((tcp_comm(tcp_con, "CHECKCONFIG", &response, "OK"))!=0){
231	>	goto error;
232	>	}
233	>
234	>	if((tcp_comm(tcp_con, ihost_state->file_list, &response, "OK"))!=0){
235	>	goto error;
236	>	}
237	>
238	>	if((tcp_comm(tcp_con, ihost_state->last_modified, &response, "OK"))==0){
239	>	if((tcp_comm(tcp_con, "END", &response, "OK"))==0){
240	>	goto error;
241	>	}
242	>	fclose(tcp_con);
243	>	return 0;
244	>	}else{
245	>	if((strcmp(response, "EXPIRED"))!=0){
246	>	goto error;
247	>	}
248	>	}
249		}
250
251	<	reply=sock_comm(fm_fd, "FQDN\n");
252	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5))){
253	<	errf("Server error (%m)");
254	<	return -1;
251	>	/* If we got to here, the config must of expired */
252	>
253	>	if((tcp_comm(tcp_con, "STARTCONFIG", &response, "OK"))!=0){
254	>	goto error;
255		}
256	<	if((ihost_state->my_fqdn=strdup(reply)) == NULL){
257	<	errf("strdup failed (%m)");
258	<	return -1;
256	>
257	>	if((tcp_comm_strdup(tcp_con, "LASTMODIFIED", &response, NULL))!=0){
258	>	goto error;
259		}
260	+	last_modified=response;
261	+
262	+	if((tcp_comm_strdup(tcp_con, "FILELIST", &response, NULL))!=0){
263	+	goto error;
264	+	}
265	+	file_list=response;
266
267	<	reply=sock_comm(fm_fd, "UDPUpdateTime\n");
268	<	if(reply== NULL){
104	<	errf("Server error (%m)");
105	<	return -1;
267	>	if((tcp_comm_strdup(tcp_con, "FQDN", &response, NULL))!=0){
268	>	goto error;
269		}
270	<	if (strncasecmp(reply, "ERROR", 5) != 0){
271	<	ihost_state->udp_update_time=atoi(reply);
270	>	host_fqdn=response;
271	>
272	>	if((tcp_comm_strdup(tcp_con, "IP", &response, NULL))!=0){
273	>	goto error;
274		}
275	+	host_ip=response;
276
277	<	reply=sock_comm(fm_fd, "TCPUpdateTime\n");
278	<	if(reply== NULL){
113	<	errf("Server error (%m)");
114	<	return -1;
277	>	if((tcp_comm(tcp_con, "UDPUpdateTime", &response, NULL))!=0){
278	>	goto error;
279		}
280	<	if (strncasecmp(reply, "ERROR", 5) != 0){
281	<	ihost_state->tcp_update_time=atoi(reply);
280	>	udp_update_time=atoi(response);
281	>
282	>	if((tcp_comm(tcp_con, "ConfigTTL", &response, NULL))!=0){
283	>	goto error;
284		}
285	+	config_ttl=atoi(response);
286
287	<	reply=sock_comm(fm_fd, "ENDCONFIG\n");
288	<	if(reply== NULL){
122	<	errf("Server error (%m)");
123	<	return -1;
287	>	if((tcp_comm(tcp_con, "ENDCONFIG", &response, NULL))!=0){
288	>	goto error;
289		}
290
291	<
291	>	if((tcp_comm(tcp_con, "FILTER", &response, NULL))!=0){
292	>	goto error;
293	>	}else{
294	>	response_ptr=strchr(response,';');
295	>	if(response_ptr==NULL){
296	>	log_msg(LOG_ERR, "Incorrect data sent by server");
297	>	goto error;
298	>	}
299	>	*response_ptr='\0';
300	>	server_fqdn=strdup(response);
301	>	if(server_fqdn==NULL){
302	>	goto error;
303	>	}
304	>	response_ptr++;
305	>	if(response_ptr==NULL){
306	>	log_msg(LOG_ERR, "Incorrect data sent by server");
307	>	goto error;
308	>	}
309
310	+	printf("string : %s\n", response_ptr);
311	+	server_udp_port=atoi(response_ptr);
312
313	+	if (server_udp_port==0){
314	+	log_msg(LOG_ERR, "Incorrect data sent by server");
315	+	goto error;
316	+	}
317	+	}
318	+
319	+	if((tcp_comm(tcp_con, "END", &response, "OK"))!=0){
320	+	goto error;
321	+	}
322	+
323	+	fclose(tcp_con);
324	+
325	+	/* We have the data we need, and its all been read correctly */
326	+
327	+	/* Free the old data before pointing them to the new data. m_free copes should
328	+	* this already be NULL */
329	+	if(ihost_state->file_list!=NULL) free(ihost_state->file_list);
330	+	if(ihost_state->last_modified!=NULL) free(ihost_state->last_modified);
331	+	if(ihost_state->host_fqdn!=NULL) free(ihost_state->host_fqdn);
332	+	if(ihost_state->server_fqdn!=NULL) free(ihost_state->server_fqdn);
333	+	if(ihost_state->host_ip!=NULL) free(ihost_state->host_ip);
334	+
335	+	ihost_state->file_list=file_list;
336	+	ihost_state->last_modified=last_modified;
337	+	ihost_state->host_fqdn=host_fqdn;
338	+	ihost_state->host_ip=host_ip;
339	+	ihost_state->server_fqdn=server_fqdn;
340	+	ihost_state->server_udp_port=server_udp_port;
341	+	ihost_state->udp_update_time=udp_update_time;
342	+	ihost_state->config_ttl=config_ttl;
343	+
344	+	log_msg(LOG_DEBUG, "UDP Update time %d", udp_update_time);
345	+	log_msg(LOG_DEBUG, "Configure ttl %d", config_ttl);
346	+
347		return 0;
348
349	+	error:
350	+
351	+	if(file_list!=NULL) free(file_list);
352	+	if(last_modified!=NULL) free(last_modified);
353	+	if(host_fqdn!=NULL) free(host_fqdn);
354	+	if(server_fqdn!=NULL) free(server_fqdn);
355	+	if(host_ip!=NULL) free(host_ip);
356	+	fclose(tcp_con);
357	+
358	+	return -1;
359		}
360
361	<	int main(){
361	>	int get_system_stats(int seq_no, ihost_state_t *ihost_state, char *xml, int size){
362	>	char tmp[size];
363	>	cpu_percent_t *cpu_percent;
364	>	mem_stat_t *mem_stats;
365	>	load_stat_t *load_stats;
366	>	user_stat_t *user_stats;
367	>	swap_stat_t *swap_stats;
368	>	general_stat_t *general_stats;
369	>	disk_stat_t *disk_stats;
370	>	diskio_stat_t *diskio_stats;
371	>	process_stat_t *process_stats;
372	>	network_stat_t *network_stats;
373	>	page_stat_t *page_stats;
374	>	int disk_entries=0;
375	>	int diskio_entries=0;
376	>	int network_entries=0;
377
378	+	int counter;
379	+	long long x;
380	+	long long y;
381	+
382	+	/* Print start of the packet we want */
383	+	snprintf(xml, size, "<packet seq_no=\"%d\" machine_name=\"%s\" date=\"%ld\" type=\"data\" ip=\"%s\">", \
384	+	seq_no, ihost_state->host_fqdn, time(NULL), ihost_state->host_ip);
385	+
386	+	/* Get cpu stats, check it is correct, then fill in its entry for the xml */
387	+	if((cpu_percent=cpu_percent_usage())==NULL){
388	+	log_msg(LOG_CRIT, "Failed to get cpu statistics");
389	+	}else{
390	+	snprintf(tmp, size, \
391	+	"<cpu><user>%3.2f</user><kernel>%3.2f</kernel><idle>%3.2f</idle><iowait>%3.2f</iowait><swap>%3.2f</swap></cpu>", \
392	+	cpu_percent->user, \
393	+	cpu_percent->kernel, \
394	+	cpu_percent->idle, \
395	+	cpu_percent->iowait, \
396	+	cpu_percent->swap);
397	+
398	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
399	+	}
400	+
401	+
402	+	/*Get mem stats, and fill in xml */
403	+	if((mem_stats=get_memory_stats())==NULL){
404	+	log_msg(LOG_CRIT, "Failed to get memory statistics");
405	+	}else{
406	+	snprintf(tmp, size, \
407	+	"<memory><total>%lld</total><free>%lld</free><used>%lld</used><cache>%lld</cache></memory>", \
408	+	mem_stats->total, \
409	+	mem_stats->free, \
410	+	mem_stats->used, \
411	+	mem_stats->cache);
412	+
413	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
414	+	}
415	+
416	+
417	+	/* Get load stats */
418	+	if((load_stats=get_load_stats())==NULL){
419	+	log_msg(LOG_CRIT, "Failed to get load statistics");
420	+	}else{
421	+	snprintf(tmp, size, \
422	+	"<load><load1>%.2lf</load1><load5>%.2lf</load5><load15>%.2lf</load15></load>", \
423	+	load_stats->min1, \
424	+	load_stats->min5, \
425	+	load_stats->min15);
426	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
427	+	}
428	+
429	+
430	+	/* get user stats */
431	+
432	+	if((user_stats=get_user_stats())==NULL){
433	+	log_msg(LOG_CRIT, "Failed to get user statistics");
434	+	}else{
435	+
436	+	snprintf(tmp, size, \
437	+	"<users><list>%s</list><count>%d</count></users>", \
438	+	user_stats->name_list, \
439	+	user_stats->num_entries);
440	+
441	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
442	+	}
443	+
444	+
445	+	/* swap stats */
446	+	if((swap_stats=get_swap_stats())==NULL){
447	+	log_msg(LOG_CRIT, "Failed to get swap statistics");
448	+	}else{
449	+	snprintf(tmp, size, \
450	+	"<swap><total>%lld</total><used>%lld</used><free>%lld</free></swap>",\
451	+	swap_stats->total, \
452	+	swap_stats->used, \
453	+	swap_stats->free);
454	+
455	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
456	+	}
457	+
458	+
459	+	/* general stats */
460	+
461	+	if((general_stats=get_general_stats())==NULL){
462	+	log_msg(LOG_CRIT, "Failed to get general statistics");
463	+	}else{
464	+	snprintf(tmp, size, \
465	+	"<os><name>%s</name><release>%s</release><version>%s</version><sysname>%s</sysname><platform>%s</platform><uptime>%ld</uptime></os>", \
466	+	general_stats->os_name, \
467	+	general_stats->os_release, \
468	+	general_stats->os_version, \
469	+	general_stats->hostname, \
470	+	general_stats->platform, \
471	+	(long)general_stats->uptime);
472	+
473	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
474	+
475	+	}
476	+
477	+
478	+	/* process stats */
479	+	if((process_stats=get_process_stats())==NULL){
480	+	log_msg(LOG_CRIT, "Failed to get general statistics");
481	+	}else{
482	+	snprintf(tmp, size, \
483	+	"<processes><sleeping>%d</sleeping><cpu>%d</cpu><zombie>%d</zombie><stopped>%d</stopped><total>%d</total></processes>",\
484	+	process_stats->sleeping, \
485	+	process_stats->running, \
486	+	process_stats->zombie, \
487	+	process_stats->stopped, \
488	+	process_stats->total);
489	+
490	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
491	+
492	+	}
493	+
494	+
495	+	/* Get paging stats */
496	+	if((page_stats=get_page_stats_diff())==NULL){
497	+	log_msg(LOG_CRIT, "Failed to get paging statistics");
498	+	}else{
499	+	if(page_stats->systime!=0){
500	+	x=page_stats->pages_pagein / page_stats->systime;
501	+	y=page_stats->pages_pageout / page_stats->systime;
502	+	}else{
503	+	x=page_stats->pages_pagein;
504	+	y=page_stats->pages_pageout;
505	+	}
506	+	snprintf(tmp, size, \
507	+	"<pages><swapins>%lld</swapins><swapouts>%lld</swapouts></pages>", \
508	+	x, \
509	+	y);
510	+
511	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
512	+	}
513	+
514	+
515	+	/* get diskio stats */
516	+
517	+	if((diskio_stats=get_diskio_stats_diff(&diskio_entries))==NULL){
518	+	log_msg(LOG_CRIT, "Failed to get diskio statistics");
519	+	}else{
520	+	strlcat(xml, "<diskio>", size);
521	+	for(counter=0;counter<diskio_entries;counter++){
522	+
523	+	if(diskio_stats->systime!=0){
524	+	x=diskio_stats->read_bytes / diskio_stats->systime;
525	+	y=diskio_stats->write_bytes / diskio_stats->systime;
526	+	}else{
527	+	x=diskio_stats->read_bytes;
528	+	y=diskio_stats->write_bytes;
529	+	}
530	+
531	+	snprintf(tmp, size, \
532	+	"<p%d name=\"%s\" rbytes=\"%lld\" wbytes=\"%lld\"></p%d>", \
533	+	counter, \
534	+	diskio_stats->disk_name, \
535	+	x, \
536	+	y, \
537	+	counter);
538	+
539	+	strlcat(xml, tmp, size);
540	+	diskio_stats++;
541	+	}
542	+
543	+	if(strlcat(xml, "</diskio>", size) >= size) goto too_big_error;
544	+
545	+	}
546	+
547	+
548	+	/* get networks stats */
549	+
550	+	if((network_stats=get_network_stats_diff(&network_entries))==NULL){
551	+	log_msg(LOG_CRIT, "Failed to get network statistics");
552	+	}else{
553	+	strlcat(xml, "<net>", size);
554	+	for(counter=0;counter<network_entries;counter++){
555	+	if(network_stats->systime!=0){
556	+	x=network_stats->rx / network_stats->systime;
557	+	y=network_stats->tx / network_stats->systime;
558	+	}else{
559	+	x=network_stats->rx;
560	+	y=network_stats->tx;
561	+	}
562	+
563	+	snprintf(tmp, size, \
564	+	"<p%d name=\"%s\" rx=\"%lld\" tx=\"%lld\"></p%d>", \
565	+	counter, \
566	+	network_stats->interface_name, \
567	+	x, \
568	+	y, \
569	+	counter);
570	+
571	+	strlcat(xml, tmp, size);
572	+	network_stats++;
573	+	}
574	+
575	+	if(strlcat(xml, "</net>", size) >= size) goto too_big_error;
576	+
577	+	}
578	+
579	+
580	+	/* get disk stats */
581	+
582	+	if((disk_stats=get_disk_stats(&disk_entries))==NULL){
583	+	log_msg(LOG_CRIT, "Failed to get disk statistics");
584	+	}else{
585	+	strlcat(xml, "<disk>", size);
586	+	for(counter=0;counter<disk_entries;counter++){
587	+	snprintf(tmp, size, \
588	+	"<p%d name=\"%s\" mount=\"%s\" fstype=\"%s\" total=\"%lld\" used=\"%lld\" avail=\"%lld\" totalinodes=\"%lld\" usedinodes=\"%lld\" freeinodes=\"%lld\"></p%d>", \
589	+	counter, \
590	+	disk_stats->device_name, \
591	+	disk_stats->mnt_point, \
592	+	disk_stats->fs_type, \
593	+	disk_stats->size, \
594	+	disk_stats->used, \
595	+	disk_stats->avail, \
596	+	disk_stats->total_inodes, \
597	+	disk_stats->used_inodes, \
598	+	disk_stats->free_inodes, \
599	+	counter);
600	+
601	+	strlcat(xml, tmp, size);
602	+
603	+	disk_stats++;
604	+	}
605	+
606	+	if(strlcat(xml, "</disk>", size) >= size) goto too_big_error;
607	+
608	+	}
609	+
610	+
611	+	if(strlcat(xml, "</packet>", size) >= size) goto too_big_error;
612	+
613	+	/*If we got to here, it should of all been filled in nicely now */
614		return 0;
615	+
616	+	too_big_error:
617	+	log_msg(LOG_ERR, "UDP Packet is too large. Throwing away the packet");
618	+	return -1;
619		}
620
621	+
622	+
623	+	void usage(char *progname){
624	+	fprintf(stderr, "Usage %s [options] server port\n", progname);
625	+	fprintf(stderr, "Options\n");
626	+	fprintf(stderr, "  -v           Verbose mode,-vv would make even more verbose\n");
627	+	fprintf(stderr, "  -f           Foreground mode, print errors to stderr\n");
628	+	fprintf(stderr, "  -V           Print version number\n");
629	+	fprintf(stderr, "  -h           Prints this help page\n");
630	+	exit(1);
631	+	}
632	+
633	+	int main(int argc, char **argv){
634	+
635	+	ihost_state_t ihost_state;
636	+	udp_sockinfo_t udp_sockinfo;
637	+
638	+	int cmdopt;
639	+	extern int optind;
640	+	pid_t pid;
641	+	FILE *f;
642	+	int packet_num=0;
643	+	int len;
644	+
645	+	char packet[MAX_UDP_PACKET_SIZE];
646	+
647	+	time_t cur_time, sleep_delay, udp_time=0, config_time=0;
648	+
649	+	/* Set default settings */
650	+	ihost_config.verbose=1;
651	+	ihost_config.daemon=1;
652	+	/* Set all errors to go down stderr until told otherwise */
653	+	ihost_config.log=stderr;
654	+
655	+	/* Blank ihost_state to default settings */
656	+	ihost_state.filtermanager_host=NULL;
657	+	ihost_state.host_fqdn=NULL;
658	+	ihost_state.host_ip=NULL;
659	+	ihost_state.server_fqdn=NULL;
660	+	ihost_state.file_list=NULL;
661	+	ihost_state.last_modified=NULL;
662	+
663	+	while((cmdopt=getopt(argc, argv, "vfhV")) != -1){
664	+	switch(cmdopt){
665	+	case 'v':
666	+	ihost_config.verbose++;
667	+	break;
668	+
669	+	case 'f':
670	+	/* Force syslog logging since stderr will be closed in this case */
671	+	ihost_config.daemon=0;
672	+	break;
673	+
674	+	case 'h':
675	+	usage(argv[0]);
676	+	break;
677	+
678	+	case 'V':
679	+	fprintf(stderr, "%s version %s\n", argv[0], VERSION);
680	+	break;
681	+
682	+	default:
683	+	usage(argv[0]);
684	+	exit(1);
685	+	}
686	+	}
687	+
688	+	if(argc!=optind+2){
689	+	usage(argv[0]);
690	+	exit(1);
691	+	}
692	+
693	+	ihost_state.filtermanager_host=strdup(argv[optind]);
694	+	ihost_state.filtermanager_port=atoi(argv[optind+1]);
695	+
696	+	if(gethostbyname(ihost_state.filtermanager_host)==NULL){
697	+	log_msg(LOG_CRIT, "Failed to lookup hostname. Please check settings");
698	+	exit(1);
699	+	}
700	+	if(ihost_state.filtermanager_port==0){
701	+	log_msg(LOG_ERR, "Invalid port number");
702	+	exit(1);
703	+	}
704	+
705	+	if(ihost_config.daemon){
706	+	pid=fork();
707	+	if(pid==-1){
708	+	log_msg(LOG_CRIT, "Failed to background exiting");
709	+	exit(1);
710	+	}else if(pid!=0){
711	+	/* Parent process */
712	+	return 0;
713	+	}
714	+	/* We should now be in the background*/
715	+	if(setsid()==-1){
716	+	log_msg(LOG_CRIT, "setsid failed");
717	+	exit(1);
718	+	}
719	+
720	+	if((ihost_config.log=fopen(LOG_FILE, "a"))==NULL){
721	+	ihost_config.log=stderr;
722	+	log_msg(LOG_CRIT, "Failed to open Logfiles %s for writing", LOG_FILE);
723	+	exit(1);
724	+	}
725	+
726	+	fclose(stdin);
727	+	fclose(stdout);
728	+	fclose(stderr);
729	+
730	+	}
731	+
732	+	log_msg(LOG_INFO, "Starting ihost");
733	+
734	+	log_msg(LOG_DEBUG,"Writing PID FILE");
735	+
736	+	pid=getpid();
737	+
738	+	if((f=fopen(PID_FILE,"w")) == NULL){
739	+	log_msg(LOG_CRIT, "Failed to write PID file");
740	+	}else{
741	+	if((fprintf(f,"%d",(int)pid)) <= 0 ){
742	+	log_msg(LOG_CRIT, "Failed to write PID file");
743	+	}
744	+	if((fclose(f))!=0){
745	+	log_msg(LOG_CRIT, "failed to close PID file");
746	+	}
747	+	}
748	+
749	+	/* Get the initial config from the filter manager. Should this fail,
750	+	* wait, and then try again. */
751	+
752	+	get_diskio_stats_diff(&packet_num);
753	+	packet_num=0;
754	+
755	+	while(ihost_getconfig(&ihost_state)!=0){
756	+	log_msg(LOG_ERR, "Failed to get ihost config");
757	+	sleep(10);
758	+	}
759	+
760	+	printf("%s\n%d\n", ihost_state.server_fqdn, ihost_state.server_udp_port);
761	+	while((create_udp_sockinfo(&udp_sockinfo, ihost_state.server_fqdn, ihost_state.server_udp_port))!=0){
762	+	log_msg(LOG_ERR, "Failed to create udp socket");
763	+	sleep(10);
764	+	}
765	+
766	+	config_time=time(NULL)+ihost_state.config_ttl;
767	+
768	+	/* Now have config.. collect data and send as often as required */
769	+	for(;;){
770	+	cur_time=time(NULL);
771	+
772	+	if(cur_time>=udp_time){
773	+	if((get_system_stats(packet_num++, &ihost_state, packet, MAX_UDP_PACKET_SIZE))!=0){
774	+	log_msg(LOG_ERR, "Failed to get system stats");
775	+	}
776	+
777	+	len=strlen(packet);
778	+	log_msg(LOG_DEBUG, "Packet size: %d\nPacket: %s\n", len, packet);
779	+
780	+	if((sendto(udp_sockinfo.sock, packet, len, 0, (struct sockaddr *) &udp_sockinfo.addr, sizeof(udp_sockinfo.addr)))!=len){
781	+	log_msg(LOG_CRIT, "Failed to send packet");
782	+	}
783	+	udp_time=cur_time+ihost_state.udp_update_time;
784	+	log_msg(LOG_DEBUG, "Next packet should be sent on %d", udp_time);
785	+	}
786	+
787	+	if(cur_time>=config_time){
788	+	if(ihost_getconfig(&ihost_state)!=0){
789	+	/* If we can't get the config, try again 5 minutes time */
790	+	log_msg(LOG_ERR, "Failed to get config, try again 5 minutes time");
791	+	config_time=time(NULL)+300;
792	+	}else{
793	+	close(udp_sockinfo.sock);
794	+
795	+	while((create_udp_sockinfo(&udp_sockinfo, ihost_state.server_fqdn, ihost_state.server_udp_port))!=0){
796	+	log_msg(LOG_CRIT, "Failed to create udp socket");
797	+	sleep(10);
798	+	}
799	+
800	+	config_time=time(NULL)+ihost_state.config_ttl;
801	+
802	+	log_msg(LOG_DEBUG, "Config expires on %d\n", ihost_state.config_ttl);
803	+	}
804	+	}
805	+
806	+	sleep_delay=udp_time-time(NULL);
807	+	log_msg(LOG_DEBUG, "Sleeping for %d", sleep_delay);
808	+	if(sleep_delay>0) sleep(sleep_delay);
809	+	}
810	+
811	+	return(0);
812	+	}

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