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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 1.40 by pajs, Sun Apr 6 12:08:37 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>
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		#include <netinet/in.h>
35	+
36		#include <ukcprog.h>
37	<	#include <netdb.h>
9	<	#include <strings.h>
37	>	#include <statgrab.h>
38
39	+	#define LOG_CRIT 0
40	+	#define LOG_ERR 1
41	+	#define LOG_INFO 2
42	+	#define LOG_DEBUG 3
43	+
44		typedef struct{
45	<	int fm_port;
46	<	char *fm_host;
47	<
48	<	char *my_fqdn;
45	>	int filtermanager_port;
46	>	char *filtermanager_host;
47	>
48	>	char *host_ip;
49	>	char *host_fqdn;
50	>
51		char *server_fqdn;
52		int server_udp_port;
53	<	int server_tcp_port;
54	<	long last_modified;
55	<	char *files_list;
56	<	char *key;
53	>
54	>	/* Weird stuff iscream wants sent to it */
55	>	char *last_modified;
56	>	char *file_list;
57	>
58		int udp_update_time;
59	<	int tcp_update_time;
59	>	//      int config_ttl;
60
61	+	time_t config_ttl;
62	+
63		}ihost_state_t;
64
65	<	char* sock_comm(FILE *f, char* sendString){
66	<	char *reply;
65	>	typedef struct{
66	>	int verbose;
67	>	int daemon;
68
69	<	fprintf(f, sendString);
70	<	fflush(f);
32	<	reply=fpgetline(f);
33	<	/* Returns pointer to static buffer */
34	<	return reply;
35	<	}
69	>	FILE *log;
70	>	}ihost_config_t;
71
72	<	int ihost_configure(ihost_state_t *ihost_state){
72	>	typedef struct{
73		struct sockaddr_in addr;
74	<	struct in_addr haddr;
75	<	int sd;
41	<	FILE *fm_fd;
42	<	char *reply;
74	>	int sock;
75	>	}udp_sockinfo_t;
76
77	<	if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) {
45	<	errf("Can't create AF_INET socket (%m)");
46	<	return -1;
47	<	}
77	>	ihost_config_t ihost_config;
78
79	<	if (get_host_addr(ihost_state->fm_host, &haddr) != 0){
80	<	errf("Failed to resolve address %s (%m)", ihost_state->fm_host);
81	<	return -1;
79	>	extern int errno;
80	>
81	>	/* Taken from the OpenSSH code. Its licence included in function.*/
82	>	#ifndef HAVE_STRLCAT
83	>
84	>	/*
85	>	* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
86	>	* All rights reserved.
87	>	*
88	>	* Redistribution and use in source and binary forms, with or without
89	>	* modification, are permitted provided that the following conditions
90	>	* are met:
91	>	* 1. Redistributions of source code must retain the above copyright
92	>	*    notice, this list of conditions and the following disclaimer.
93	>	* 2. Redistributions in binary form must reproduce the above copyright
94	>	*    notice, this list of conditions and the following disclaimer in the
95	>	*    documentation and/or other materials provided with the distribution.
96	>	* 3. The name of the author may not be used to endorse or promote products
97	>	*    derived from this software without specific prior written permission.
98	>	*
99	>	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
100	>	* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
101	>	* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
102	>	* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
103	>	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
104	>	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
105	>	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
106	>	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
107	>	* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
108	>	* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
109	>	*/
110	>
111	>	/*
112	>	* Appends src to string dst of size siz (unlike strncat, siz is the
113	>	* full size of dst, not space left).  At most siz-1 characters
114	>	* will be copied.  Always NUL terminates (unless siz <= strlen(dst)).
115	>	* Returns strlen(src) + MIN(siz, strlen(initial dst)).
116	>	* If retval >= siz, truncation occurred.
117	>	*/
118	>	size_t
119	>	strlcat(dst, src, siz)
120	>	char *dst;
121	>	const char *src;
122	>	size_t siz;
123	>	{
124	>	register char *d = dst;
125	>	register const char *s = src;
126	>	register size_t n = siz;
127	>	size_t dlen;
128	>
129	>	/* Find the end of dst and adjust bytes left but don't go past end */
130	>	while (n-- != 0 && *d != '\0')
131	>	d++;
132	>	dlen = d - dst;
133	>	n = siz - dlen;
134	>
135	>	if (n == 0)
136	>	return(dlen + strlen(s));
137	>	while (*s != '\0') {
138	>	if (n != 1) {
139	>	*d++ = *s;
140	>	n--;
141	>	}
142	>	s++;
143	>	}
144	>	*d = '\0';
145	>
146	>	return(dlen + (s - src));       /* count does not include NUL */
147	>	}
148	>
149	>	#endif
150	>	/* End strlcat function taken from OpenSSH */
151	>
152	>	void log_msg(int level, char *format, ...){
153	>	int cur_errno;
154	>	va_list ap;
155	>
156	>	cur_errno=errno;
157	>
158	>	if(level<=ihost_config.verbose){
159	>	va_start(ap, format);
160	>	vfprintf(ihost_config.log, format, ap);
161	>	va_end(ap);
162	>	if(level==LOG_CRIT){
163	>	fprintf(ihost_config.log, " (%s)\n", strerror(cur_errno));
164	>	}else{
165	>	fprintf(ihost_config.log, "\n");
166	>	}
167	>	fflush(ihost_config.log);
168		}
169	+	}
170
171	<	memset((char *)&addr, 0, sizeof addr);
172	<	addr.sin_family = AF_INET;
173	<	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
174	<	addr.sin_port =  htons(ihost_state->fm_port);
171	>	/* Takes many pointers, checks if they are NULL or not, and then free's them */
172	>	/* Deprciated - and i only wrote it today! :)
173	>	void m_free(int num_pointers, ...){
174	>	int x=0;
175	>	va_list ap;
176	>	void *p;
177
178	<	if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
179	<	errf("Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
180	<	return -1;
178	>	va_start(ap, num_pointers);
179	>	for(;x<num_pointers;x++){
180	>	p=va_arg(ap, void*);
181	>	if(p!=NULL){
182	>	free(p);
183	>	}
184		}
185	+	va_end(ap);
186	+	}
187	+	*/
188
189	<	if ((fm_fd=fdopen(sd,"r+")) == NULL){
190	<	errf("Failed to open stream (%m)");
191	<	return -1;
189	>	int create_udp_sockinfo(udp_sockinfo_t *udp_sockinfo, char *hostname, int port){
190	>
191	>	struct in_addr haddr;
192	>
193	>	log_msg(LOG_DEBUG, "Resolving name for udp connection");
194	>	if(get_host_addr(hostname, &haddr) != 0){
195	>	log_msg(LOG_CRIT, "Failed to lookup name");
196	>	return 1;
197		}
198	+
199	+	if((udp_sockinfo->sock=socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0){
200	+	log_msg(LOG_CRIT, "Failed to create UDP socket");
201	+	return 1;
202	+	}
203	+
204	+	memset(&(udp_sockinfo->addr), 0, sizeof(struct sockaddr_in));
205	+	udp_sockinfo->addr.sin_family=AF_INET;
206	+	memcpy((char *)&(udp_sockinfo->addr.sin_addr), &haddr, sizeof(haddr));
207	+	udp_sockinfo->addr.sin_port = htons(port);
208	+
209	+	log_msg(LOG_DEBUG, "Socket created");
210	+	return 0;
211	+	}
212	+
213	+	FILE *create_tcp_connection(char *hostname, int port){
214	+	int sock;
215	+	struct sockaddr_in addr;
216	+	struct in_addr haddr;
217	+	FILE *f;
218	+
219	+	log_msg(LOG_DEBUG, "Creating tcp socket");
220	+	if((sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP))<0){
221	+	log_msg(LOG_CRIT, "Failed to make TCP Socket");
222	+	return NULL;
223	+	}
224	+
225	+	if((get_host_addr(hostname, &haddr))!=0){
226	+	log_msg(LOG_CRIT, "Failed to lookup name for %s", hostname);
227	+	close(sock);
228	+	return NULL;
229	+	}
230	+
231	+	memset(&addr, 0, sizeof(addr));
232	+	addr.sin_family = AF_INET;
233	+	memcpy(&addr.sin_addr, &haddr, sizeof(haddr));
234	+	addr.sin_port = htons(port);
235	+
236	+	log_msg(LOG_DEBUG, "Creating a tcp connection");
237	+	if(connect(sock, (struct sockaddr *)&addr, sizeof(addr)) !=0){
238	+	log_msg(LOG_CRIT, "Failed to connect to hostname %s on port %d", hostname, port);
239	+	close(sock);
240	+	return NULL;
241	+	}
242	+
243	+	if((f=fdopen(sock, "r+"))==NULL){
244	+	log_msg(LOG_CRIT, "Failed to connect to open filedescriptor on tcp connection");
245	+	close(sock);
246	+	return NULL;
247	+	}
248	+
249	+	return f;
250	+	}
251	+
252	+	int tcp_comm(FILE *f, char *send, char **response, char *expected){
253	+
254	+	log_msg(LOG_DEBUG, "Sending %s", send);
255	+	fprintf(f, "%s\n", send);
256	+	fflush(f);
257	+	*response=fpgetline(f);
258	+	fseek(f, 0, SEEK_CUR);
259	+
260	+	if(*response!=NULL) log_msg(LOG_DEBUG, "Recieved %s", *response);
261	+
262	+	if( (*response==NULL) || (strcmp(*response, "ERROR")==0) ) return -1;
263
264	<	reply=sock_comm(fm_fd, "STARTCONFIG\n");
265	<	if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
266	<	errf("Server error");
264	>	if(expected==NULL) return 0;
265	>
266	>	if((strcmp(expected, *response))==0) return 0;
267	>
268	>	log_msg(LOG_DEBUG, "Did not get expected response");
269	>	return -1;
270	>	}
271	>
272	>	int tcp_comm_strdup(FILE *f, char *send, char **response, char *expected){
273	>	if((tcp_comm(f, send, response, expected))!=0){
274		return -1;
275		}
276
277	<	reply=sock_comm(fm_fd, "LASTMODIFIED\n");
278	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5))){
279	<	errf("Server error (%m)");
277	>	*response=strdup(*response);
278	>	if (response==NULL) return -1;
279	>
280	>	return 0;
281	>	}
282	>
283	>	int ihost_getconfig(ihost_state_t *ihost_state){
284	>
285	>	FILE *tcp_con;
286	>	char *response;
287	>	char *response_ptr;
288	>
289	>	/* Keep these in case of a failure and so it can keep running on the old config */
290	>	char *file_list=NULL;
291	>	char *last_modified=NULL;
292	>	char *host_fqdn=NULL;
293	>	char *host_ip=NULL;
294	>	int udp_update_time=0;
295	>	char *server_fqdn=NULL;
296	>	int server_udp_port=0;
297	>	time_t config_ttl=0;
298	>
299	>	if((tcp_con=create_tcp_connection(ihost_state->filtermanager_host, ihost_state->filtermanager_port))==NULL){
300		return -1;
301		}
302	<	ihost_state->last_modified=atol(reply);
302	>
303	>	if(ihost_state->file_list!=NULL || ihost_state->last_modified!=NULL){
304	>	if(tcp_con==NULL){
305	>	goto error;
306	>	}
307
308	<	reply=sock_comm(fm_fd, "FILELIST\n");
309	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5))){
310	<	errf("Server error (%m)");
311	<	return -1;
308	>	if((tcp_comm(tcp_con, "CHECKCONFIG", &response, "OK"))!=0){
309	>	goto error;
310	>	}
311	>
312	>	if((tcp_comm(tcp_con, ihost_state->file_list, &response, "OK"))!=0){
313	>	goto error;
314	>	}
315	>
316	>	if((tcp_comm(tcp_con, ihost_state->last_modified, &response, "OK"))==0){
317	>	if((tcp_comm(tcp_con, "END", &response, "OK"))!=0){
318	>	goto error;
319	>	}
320	>	fclose(tcp_con);
321	>	return 0;
322	>	}else{
323	>	if((strcmp(response, "EXPIRED"))!=0){
324	>	goto error;
325	>	}
326	>	}
327		}
328	<	if((ihost_state->files_list=strdup(reply)) == NULL){
329	<	errf("strdup failed (%m)");
330	<	return -1;
328	>
329	>	/* If we got to here, the config must of expired */
330	>
331	>	if((tcp_comm(tcp_con, "STARTCONFIG", &response, "OK"))!=0){
332	>	goto error;
333		}
334
335	<	reply=sock_comm(fm_fd, "FQDN\n");
336	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5))){
94	<	errf("Server error (%m)");
95	<	return -1;
335	>	if((tcp_comm_strdup(tcp_con, "LASTMODIFIED", &response, NULL))!=0){
336	>	goto error;
337		}
338	<	if((ihost_state->my_fqdn=strdup(reply)) == NULL){
339	<	errf("strdup failed (%m)");
340	<	return -1;
338	>	last_modified=response;
339	>
340	>	if((tcp_comm_strdup(tcp_con, "FILELIST", &response, NULL))!=0){
341	>	goto error;
342		}
343	+	file_list=response;
344
345	<	reply=sock_comm(fm_fd, "UDPUpdateTime\n");
346	<	if(reply== NULL){
104	<	errf("Server error (%m)");
105	<	return -1;
345	>	if((tcp_comm_strdup(tcp_con, "FQDN", &response, NULL))!=0){
346	>	goto error;
347		}
348	<	if (strncasecmp(reply, "ERROR", 5) != 0){
349	<	ihost_state->udp_update_time=atoi(reply);
348	>	host_fqdn=response;
349	>
350	>	if((tcp_comm_strdup(tcp_con, "IP", &response, NULL))!=0){
351	>	goto error;
352		}
353	+	host_ip=response;
354
355	<	reply=sock_comm(fm_fd, "TCPUpdateTime\n");
356	<	if(reply== NULL){
113	<	errf("Server error (%m)");
114	<	return -1;
355	>	if((tcp_comm(tcp_con, "UDPUpdateTime", &response, NULL))!=0){
356	>	goto error;
357		}
358	<	if (strncasecmp(reply, "ERROR", 5) != 0){
359	<	ihost_state->tcp_update_time=atoi(reply);
358	>	udp_update_time=atoi(response);
359	>
360	>	if((tcp_comm(tcp_con, "ConfigTTL", &response, NULL))!=0){
361	>	goto error;
362		}
363	+	config_ttl=atoi(response);
364
365	<	reply=sock_comm(fm_fd, "ENDCONFIG\n");
366	<	if(reply== NULL){
122	<	errf("Server error (%m)");
123	<	return -1;
365	>	if((tcp_comm(tcp_con, "ENDCONFIG", &response, NULL))!=0){
366	>	goto error;
367		}
368
369	<
369	>	if((tcp_comm(tcp_con, "FILTER", &response, NULL))!=0){
370	>	goto error;
371	>	}else{
372	>	response_ptr=strchr(response,';');
373	>	if(response_ptr==NULL){
374	>	log_msg(LOG_ERR, "Incorrect data sent by server");
375	>	goto error;
376	>	}
377	>	*response_ptr='\0';
378	>	server_fqdn=strdup(response);
379	>	if(server_fqdn==NULL){
380	>	goto error;
381	>	}
382	>	response_ptr++;
383	>	if(response_ptr==NULL){
384	>	log_msg(LOG_ERR, "Incorrect data sent by server");
385	>	goto error;
386	>	}
387
388	+	printf("string : %s\n", response_ptr);
389	+	server_udp_port=atoi(response_ptr);
390
391	+	if (server_udp_port==0){
392	+	log_msg(LOG_ERR, "Incorrect data sent by server");
393	+	goto error;
394	+	}
395	+	}
396	+
397	+	if((tcp_comm(tcp_con, "END", &response, "OK"))!=0){
398	+	goto error;
399	+	}
400	+
401	+	fclose(tcp_con);
402	+
403	+	/* We have the data we need, and its all been read correctly */
404	+
405	+	/* Free the old data before pointing them to the new data. m_free copes should
406	+	* this already be NULL */
407	+	if(ihost_state->file_list!=NULL) free(ihost_state->file_list);
408	+	if(ihost_state->last_modified!=NULL) free(ihost_state->last_modified);
409	+	if(ihost_state->host_fqdn!=NULL) free(ihost_state->host_fqdn);
410	+	if(ihost_state->server_fqdn!=NULL) free(ihost_state->server_fqdn);
411	+	if(ihost_state->host_ip!=NULL) free(ihost_state->host_ip);
412	+
413	+	ihost_state->file_list=file_list;
414	+	ihost_state->last_modified=last_modified;
415	+	ihost_state->host_fqdn=host_fqdn;
416	+	ihost_state->host_ip=host_ip;
417	+	ihost_state->server_fqdn=server_fqdn;
418	+	ihost_state->server_udp_port=server_udp_port;
419	+	ihost_state->udp_update_time=udp_update_time;
420	+	ihost_state->config_ttl=config_ttl;
421	+
422	+	log_msg(LOG_DEBUG, "UDP Update time %d", udp_update_time);
423	+	log_msg(LOG_DEBUG, "Configure ttl %d", config_ttl);
424	+
425		return 0;
426
427	+	error:
428	+
429	+	if(file_list!=NULL) free(file_list);
430	+	if(last_modified!=NULL) free(last_modified);
431	+	if(host_fqdn!=NULL) free(host_fqdn);
432	+	if(server_fqdn!=NULL) free(server_fqdn);
433	+	if(host_ip!=NULL) free(host_ip);
434	+	fclose(tcp_con);
435	+
436	+	return -1;
437		}
438
439	<	int main(){
439	>	int get_system_stats(int seq_no, ihost_state_t *ihost_state, char *xml, int size){
440	>	char tmp[size];
441	>	cpu_percent_t *cpu_percent;
442	>	mem_stat_t *mem_stats;
443	>	load_stat_t *load_stats;
444	>	user_stat_t *user_stats;
445	>	swap_stat_t *swap_stats;
446	>	general_stat_t *general_stats;
447	>	disk_stat_t *disk_stats;
448	>	diskio_stat_t *diskio_stats;
449	>	process_stat_t *process_stats;
450	>	network_stat_t *network_stats;
451	>	page_stat_t *page_stats;
452	>	int disk_entries=0;
453	>	int diskio_entries=0;
454	>	int network_entries=0;
455
456	+	int counter;
457	+	long long x;
458	+	long long y;
459	+
460	+	/* Print start of the packet we want */
461	+	snprintf(xml, size, "<packet seq_no=\"%d\" machine_name=\"%s\" date=\"%ld\" type=\"data\" ip=\"%s\">", \
462	+	seq_no, ihost_state->host_fqdn, time(NULL), ihost_state->host_ip);
463	+
464	+	/* Get cpu stats, check it is correct, then fill in its entry for the xml */
465	+	if((cpu_percent=cpu_percent_usage())==NULL){
466	+	log_msg(LOG_CRIT, "Failed to get cpu statistics");
467	+	}else{
468	+	snprintf(tmp, size, \
469	+	"<cpu><user>%3.2f</user><kernel>%3.2f</kernel><idle>%3.2f</idle><iowait>%3.2f</iowait><swap>%3.2f</swap></cpu>", \
470	+	cpu_percent->user, \
471	+	cpu_percent->kernel, \
472	+	cpu_percent->idle, \
473	+	cpu_percent->iowait, \
474	+	cpu_percent->swap);
475	+
476	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
477	+	}
478	+
479	+
480	+	/*Get mem stats, and fill in xml */
481	+	if((mem_stats=get_memory_stats())==NULL){
482	+	log_msg(LOG_CRIT, "Failed to get memory statistics");
483	+	}else{
484	+	snprintf(tmp, size, \
485	+	"<memory><total>%lld</total><free>%lld</free><used>%lld</used><cache>%lld</cache></memory>", \
486	+	mem_stats->total, \
487	+	mem_stats->free, \
488	+	mem_stats->used, \
489	+	mem_stats->cache);
490	+
491	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
492	+	}
493	+
494	+
495	+	/* Get load stats */
496	+	if((load_stats=get_load_stats())==NULL){
497	+	log_msg(LOG_CRIT, "Failed to get load statistics");
498	+	}else{
499	+	snprintf(tmp, size, \
500	+	"<load><load1>%.2lf</load1><load5>%.2lf</load5><load15>%.2lf</load15></load>", \
501	+	load_stats->min1, \
502	+	load_stats->min5, \
503	+	load_stats->min15);
504	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
505	+	}
506	+
507	+
508	+	/* get user stats */
509	+
510	+	if((user_stats=get_user_stats())==NULL){
511	+	log_msg(LOG_CRIT, "Failed to get user statistics");
512	+	}else{
513	+
514	+	snprintf(tmp, size, \
515	+	"<users><list>%s</list><count>%d</count></users>", \
516	+	user_stats->name_list, \
517	+	user_stats->num_entries);
518	+
519	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
520	+	}
521	+
522	+
523	+	/* swap stats */
524	+	if((swap_stats=get_swap_stats())==NULL){
525	+	log_msg(LOG_CRIT, "Failed to get swap statistics");
526	+	}else{
527	+	snprintf(tmp, size, \
528	+	"<swap><total>%lld</total><used>%lld</used><free>%lld</free></swap>",\
529	+	swap_stats->total, \
530	+	swap_stats->used, \
531	+	swap_stats->free);
532	+
533	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
534	+	}
535	+
536	+
537	+	/* general stats */
538	+
539	+	if((general_stats=get_general_stats())==NULL){
540	+	log_msg(LOG_CRIT, "Failed to get general statistics");
541	+	}else{
542	+	snprintf(tmp, size, \
543	+	"<os><name>%s</name><release>%s</release><version>%s</version><sysname>%s</sysname><platform>%s</platform><uptime>%ld</uptime></os>", \
544	+	general_stats->os_name, \
545	+	general_stats->os_release, \
546	+	general_stats->os_version, \
547	+	general_stats->hostname, \
548	+	general_stats->platform, \
549	+	(long)general_stats->uptime);
550	+
551	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
552	+
553	+	}
554	+
555	+
556	+	/* process stats */
557	+	if((process_stats=get_process_stats())==NULL){
558	+	log_msg(LOG_CRIT, "Failed to get general statistics");
559	+	}else{
560	+	snprintf(tmp, size, \
561	+	"<processes><sleeping>%d</sleeping><cpu>%d</cpu><zombie>%d</zombie><stopped>%d</stopped><total>%d</total></processes>",\
562	+	process_stats->sleeping, \
563	+	process_stats->running, \
564	+	process_stats->zombie, \
565	+	process_stats->stopped, \
566	+	process_stats->total);
567	+
568	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
569	+
570	+	}
571	+
572	+
573	+	/* Get paging stats */
574	+	if((page_stats=get_page_stats_diff())==NULL){
575	+	log_msg(LOG_CRIT, "Failed to get paging statistics");
576	+	}else{
577	+	if(page_stats->systime!=0){
578	+	x=page_stats->pages_pagein / page_stats->systime;
579	+	y=page_stats->pages_pageout / page_stats->systime;
580	+	}else{
581	+	x=page_stats->pages_pagein;
582	+	y=page_stats->pages_pageout;
583	+	}
584	+	snprintf(tmp, size, \
585	+	"<pages><pageins>%lld</pageins><pageouts>%lld</pageouts></pages>", \
586	+	x, \
587	+	y);
588	+
589	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
590	+	}
591	+
592	+
593	+	/* get diskio stats */
594	+
595	+	if((diskio_stats=get_diskio_stats_diff(&diskio_entries))==NULL){
596	+	log_msg(LOG_CRIT, "Failed to get diskio statistics");
597	+	}else{
598	+	strlcat(xml, "<diskio>", size);
599	+	for(counter=0;counter<diskio_entries;counter++){
600	+
601	+	if(diskio_stats->systime!=0){
602	+	x=diskio_stats->read_bytes / diskio_stats->systime;
603	+	y=diskio_stats->write_bytes / diskio_stats->systime;
604	+	}else{
605	+	x=diskio_stats->read_bytes;
606	+	y=diskio_stats->write_bytes;
607	+	}
608	+
609	+	snprintf(tmp, size, \
610	+	"<p%d name=\"%s\" rbytes=\"%lld\" wbytes=\"%lld\"></p%d>", \
611	+	counter, \
612	+	diskio_stats->disk_name, \
613	+	x, \
614	+	y, \
615	+	counter);
616	+
617	+	strlcat(xml, tmp, size);
618	+	diskio_stats++;
619	+	}
620	+
621	+	if(strlcat(xml, "</diskio>", size) >= size) goto too_big_error;
622	+
623	+	}
624	+
625	+
626	+	/* get networks stats */
627	+
628	+	if((network_stats=get_network_stats_diff(&network_entries))==NULL){
629	+	log_msg(LOG_CRIT, "Failed to get network statistics");
630	+	}else{
631	+	strlcat(xml, "<net>", size);
632	+	for(counter=0;counter<network_entries;counter++){
633	+	if(network_stats->systime!=0){
634	+	x=network_stats->rx / network_stats->systime;
635	+	y=network_stats->tx / network_stats->systime;
636	+	}else{
637	+	x=network_stats->rx;
638	+	y=network_stats->tx;
639	+	}
640	+
641	+	snprintf(tmp, size, \
642	+	"<p%d name=\"%s\" rx=\"%lld\" tx=\"%lld\"></p%d>", \
643	+	counter, \
644	+	network_stats->interface_name, \
645	+	x, \
646	+	y, \
647	+	counter);
648	+
649	+	strlcat(xml, tmp, size);
650	+	network_stats++;
651	+	}
652	+
653	+	if(strlcat(xml, "</net>", size) >= size) goto too_big_error;
654	+
655	+	}
656	+
657	+
658	+	/* get disk stats */
659	+
660	+	if((disk_stats=get_disk_stats(&disk_entries))==NULL){
661	+	log_msg(LOG_CRIT, "Failed to get disk statistics");
662	+	}else{
663	+	strlcat(xml, "<disk>", size);
664	+	for(counter=0;counter<disk_entries;counter++){
665	+	snprintf(tmp, size, \
666	+	"<p%d name=\"%s\" mount=\"%s\" fstype=\"%s\" total=\"%lld\" used=\"%lld\" avail=\"%lld\" totalinodes=\"%lld\" usedinodes=\"%lld\" freeinodes=\"%lld\"></p%d>", \
667	+	counter, \
668	+	disk_stats->device_name, \
669	+	disk_stats->mnt_point, \
670	+	disk_stats->fs_type, \
671	+	disk_stats->size, \
672	+	disk_stats->used, \
673	+	disk_stats->avail, \
674	+	disk_stats->total_inodes, \
675	+	disk_stats->used_inodes, \
676	+	disk_stats->free_inodes, \
677	+	counter);
678	+
679	+	strlcat(xml, tmp, size);
680	+
681	+	disk_stats++;
682	+	}
683	+
684	+	if(strlcat(xml, "</disk>", size) >= size) goto too_big_error;
685	+
686	+	}
687	+
688	+
689	+	if(strlcat(xml, "</packet>", size) >= size) goto too_big_error;
690	+
691	+	/*If we got to here, it should of all been filled in nicely now */
692		return 0;
693	+
694	+	too_big_error:
695	+	log_msg(LOG_ERR, "UDP Packet is too large. Throwing away the packet");
696	+	return -1;
697		}
698
699	+
700	+
701	+	void usage(char *progname){
702	+	fprintf(stderr, "Usage %s [options] server port\n", progname);
703	+	fprintf(stderr, "Options\n");
704	+	fprintf(stderr, "  -v           Verbose mode,-vv would make even more verbose\n");
705	+	fprintf(stderr, "  -f           Foreground mode, print errors to stderr\n");
706	+	fprintf(stderr, "  -V           Print version number\n");
707	+	fprintf(stderr, "  -h           Prints this help page\n");
708	+	exit(1);
709	+	}
710	+
711	+	int main(int argc, char **argv){
712	+
713	+	ihost_state_t ihost_state;
714	+	udp_sockinfo_t udp_sockinfo;
715	+
716	+	int cmdopt;
717	+	extern int optind;
718	+	pid_t pid;
719	+	FILE *f;
720	+	int packet_num=0;
721	+	int len;
722	+
723	+	char packet[MAX_UDP_PACKET_SIZE];
724	+
725	+	time_t cur_time, sleep_delay, udp_time=0, config_time=0;
726	+
727	+	/* Set default settings */
728	+	ihost_config.verbose=1;
729	+	ihost_config.daemon=1;
730	+	/* Set all errors to go down stderr until told otherwise */
731	+	ihost_config.log=stderr;
732	+
733	+	/* Blank ihost_state to default settings */
734	+	ihost_state.filtermanager_host=NULL;
735	+	ihost_state.host_fqdn=NULL;
736	+	ihost_state.host_ip=NULL;
737	+	ihost_state.server_fqdn=NULL;
738	+	ihost_state.file_list=NULL;
739	+	ihost_state.last_modified=NULL;
740	+
741	+	while((cmdopt=getopt(argc, argv, "vfhV")) != -1){
742	+	switch(cmdopt){
743	+	case 'v':
744	+	ihost_config.verbose++;
745	+	break;
746	+
747	+	case 'f':
748	+	/* Force syslog logging since stderr will be closed in this case */
749	+	ihost_config.daemon=0;
750	+	break;
751	+
752	+	case 'h':
753	+	usage(argv[0]);
754	+	break;
755	+
756	+	case 'V':
757	+	fprintf(stderr, "%s version %s\n", argv[0], VERSION);
758	+	break;
759	+
760	+	default:
761	+	usage(argv[0]);
762	+	exit(1);
763	+	}
764	+	}
765	+
766	+	if(argc!=optind+2){
767	+	usage(argv[0]);
768	+	exit(1);
769	+	}
770	+
771	+	ihost_state.filtermanager_host=strdup(argv[optind]);
772	+	ihost_state.filtermanager_port=atoi(argv[optind+1]);
773	+
774	+	if(gethostbyname(ihost_state.filtermanager_host)==NULL){
775	+	log_msg(LOG_CRIT, "Failed to lookup hostname. Please check settings");
776	+	exit(1);
777	+	}
778	+	if(ihost_state.filtermanager_port==0){
779	+	log_msg(LOG_ERR, "Invalid port number");
780	+	exit(1);
781	+	}
782	+
783	+	if(ihost_config.daemon){
784	+	pid=fork();
785	+	if(pid==-1){
786	+	log_msg(LOG_CRIT, "Failed to background exiting");
787	+	exit(1);
788	+	}else if(pid!=0){
789	+	/* Parent process */
790	+	return 0;
791	+	}
792	+	/* We should now be in the background*/
793	+	if(setsid()==-1){
794	+	log_msg(LOG_CRIT, "setsid failed");
795	+	exit(1);
796	+	}
797	+
798	+	if((ihost_config.log=fopen(LOG_FILE, "a"))==NULL){
799	+	ihost_config.log=stderr;
800	+	log_msg(LOG_CRIT, "Failed to open Logfiles %s for writing", LOG_FILE);
801	+	exit(1);
802	+	}
803	+
804	+	fclose(stdin);
805	+	fclose(stdout);
806	+	fclose(stderr);
807	+
808	+	}
809	+
810	+	log_msg(LOG_INFO, "Starting ihost");
811	+
812	+	log_msg(LOG_DEBUG,"Writing PID FILE");
813	+
814	+	pid=getpid();
815	+
816	+	if((f=fopen(PID_FILE,"w")) == NULL){
817	+	log_msg(LOG_CRIT, "Failed to write PID file");
818	+	}else{
819	+	if((fprintf(f,"%d",(int)pid)) <= 0 ){
820	+	log_msg(LOG_CRIT, "Failed to write PID file");
821	+	}
822	+	if((fclose(f))!=0){
823	+	log_msg(LOG_CRIT, "failed to close PID file");
824	+	}
825	+	}
826	+
827	+	/* Get the initial config from the filter manager. Should this fail,
828	+	* wait, and then try again. */
829	+
830	+	get_diskio_stats_diff(&packet_num);
831	+	packet_num=0;
832	+
833	+	while(ihost_getconfig(&ihost_state)!=0){
834	+	log_msg(LOG_ERR, "Failed to get ihost config");
835	+	sleep(10);
836	+	}
837	+
838	+	printf("%s\n%d\n", ihost_state.server_fqdn, ihost_state.server_udp_port);
839	+	while((create_udp_sockinfo(&udp_sockinfo, ihost_state.server_fqdn, ihost_state.server_udp_port))!=0){
840	+	log_msg(LOG_ERR, "Failed to create udp socket");
841	+	sleep(10);
842	+	}
843	+
844	+	config_time=time(NULL)+ihost_state.config_ttl;
845	+
846	+	/* Now have config.. collect data and send as often as required */
847	+	for(;;){
848	+	cur_time=time(NULL);
849	+
850	+	if(cur_time>=udp_time){
851	+	if((get_system_stats(packet_num++, &ihost_state, packet, MAX_UDP_PACKET_SIZE))!=0){
852	+	log_msg(LOG_ERR, "Failed to get system stats");
853	+	}
854	+
855	+	len=strlen(packet);
856	+	log_msg(LOG_DEBUG, "Packet size: %d\nPacket: %s\n", len, packet);
857	+
858	+	if((sendto(udp_sockinfo.sock, packet, len, 0, (struct sockaddr *) &udp_sockinfo.addr, sizeof(udp_sockinfo.addr)))!=len){
859	+	log_msg(LOG_CRIT, "Failed to send packet");
860	+	}
861	+	udp_time=cur_time+ihost_state.udp_update_time;
862	+	log_msg(LOG_DEBUG, "Next packet should be sent on %d", udp_time);
863	+	}
864	+
865	+	if(cur_time>=config_time){
866	+	if(ihost_getconfig(&ihost_state)!=0){
867	+	/* If we can't get the config, try again 5 minutes time */
868	+	log_msg(LOG_ERR, "Failed to get config, try again 5 minutes time");
869	+	config_time=time(NULL)+300;
870	+	}else{
871	+	close(udp_sockinfo.sock);
872	+
873	+	while((create_udp_sockinfo(&udp_sockinfo, ihost_state.server_fqdn, ihost_state.server_udp_port))!=0){
874	+	log_msg(LOG_CRIT, "Failed to create udp socket");
875	+	sleep(10);
876	+	}
877	+
878	+	config_time=time(NULL)+ihost_state.config_ttl;
879	+
880	+	log_msg(LOG_DEBUG, "Config expires on %d\n", ihost_state.config_ttl);
881	+	}
882	+	}
883	+
884	+	sleep_delay=udp_time-time(NULL);
885	+	log_msg(LOG_DEBUG, "Sleeping for %d", sleep_delay);
886	+	if(sleep_delay>0) sleep(sleep_delay);
887	+	}
888	+
889	+	return(0);
890	+	}

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