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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 1.34 by tdb, Sun Mar 9 00:21:22 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	>	extern int errno;
79	>
80	>	/* Taken from the OpenSSH code. Its licence included in function.*/
81	>	#ifndef HAVE_STRLCAT
82	>
83	>	/*
84	>	* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
85	>	* All rights reserved.
86	>	*
87	>	* Redistribution and use in source and binary forms, with or without
88	>	* modification, are permitted provided that the following conditions
89	>	* are met:
90	>	* 1. Redistributions of source code must retain the above copyright
91	>	*    notice, this list of conditions and the following disclaimer.
92	>	* 2. Redistributions in binary form must reproduce the above copyright
93	>	*    notice, this list of conditions and the following disclaimer in the
94	>	*    documentation and/or other materials provided with the distribution.
95	>	* 3. The name of the author may not be used to endorse or promote products
96	>	*    derived from this software without specific prior written permission.
97	>	*
98	>	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
99	>	* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
100	>	* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
101	>	* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
102	>	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
103	>	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
104	>	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
105	>	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
106	>	* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
107	>	* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
108	>	*/
109	>
110	>	/*
111	>	* Appends src to string dst of size siz (unlike strncat, siz is the
112	>	* full size of dst, not space left).  At most siz-1 characters
113	>	* will be copied.  Always NUL terminates (unless siz <= strlen(dst)).
114	>	* Returns strlen(src) + MIN(siz, strlen(initial dst)).
115	>	* If retval >= siz, truncation occurred.
116	>	*/
117	>	size_t
118	>	strlcat(dst, src, siz)
119	>	char *dst;
120	>	const char *src;
121	>	size_t siz;
122	>	{
123	>	register char *d = dst;
124	>	register const char *s = src;
125	>	register size_t n = siz;
126	>	size_t dlen;
127	>
128	>	/* Find the end of dst and adjust bytes left but don't go past end */
129	>	while (n-- != 0 && *d != '\0')
130	>	d++;
131	>	dlen = d - dst;
132	>	n = siz - dlen;
133	>
134	>	if (n == 0)
135	>	return(dlen + strlen(s));
136	>	while (*s != '\0') {
137	>	if (n != 1) {
138	>	*d++ = *s;
139	>	n--;
140	>	}
141	>	s++;
142	>	}
143	>	*d = '\0';
144	>
145	>	return(dlen + (s - src));       /* count does not include NUL */
146	>	}
147	>
148	>	#endif
149	>	/* End strlcat function taken from OpenSSH */
150	>
151	>	void log_msg(int level, char *format, ...){
152	>	int cur_errno;
153	>	va_list ap;
154	>
155	>	cur_errno=errno;
156	>
157	>	if(level<=ihost_config.verbose){
158	>	va_start(ap, format);
159	>	vfprintf(ihost_config.log, format, ap);
160	>	va_end(ap);
161	>	if(level==LOG_CRIT){
162	>	fprintf(ihost_config.log, " (%s)\n", strerror(cur_errno));
163	>	}else{
164	>	fprintf(ihost_config.log, "\n");
165	>	}
166		}
167	+	}
168
169	<	memset((char *)&addr, 0, sizeof addr);
170	<	addr.sin_family = AF_INET;
171	<	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
172	<	addr.sin_port =  htons(ihost_state->fm_port);
169	>	/* Takes many pointers, checks if they are NULL or not, and then free's them */
170	>	/* Deprciated - and i only wrote it today! :)
171	>	void m_free(int num_pointers, ...){
172	>	int x=0;
173	>	va_list ap;
174	>	void *p;
175
176	<	if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
177	<	errf("Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
178	<	return -1;
176	>	va_start(ap, num_pointers);
177	>	for(;x<num_pointers;x++){
178	>	p=va_arg(ap, void*);
179	>	if(p!=NULL){
180	>	free(p);
181	>	}
182		}
183	+	va_end(ap);
184	+	}
185	+	*/
186
187	<	if ((fm_fd=fdopen(sd,"r+")) == NULL){
188	<	errf("Failed to open stream (%m)");
189	<	return -1;
187	>	int create_udp_sockinfo(udp_sockinfo_t *udp_sockinfo, char *hostname, int port){
188	>
189	>	struct in_addr haddr;
190	>
191	>	log_msg(LOG_DEBUG, "Resolving name for udp connection");
192	>	if(get_host_addr(hostname, &haddr) != 0){
193	>	log_msg(LOG_CRIT, "Failed to lookup name");
194	>	return 1;
195		}
196	+
197	+	if((udp_sockinfo->sock=socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0){
198	+	log_msg(LOG_CRIT, "Failed to create UDP socket");
199	+	return 1;
200	+	}
201	+
202	+	memset(&(udp_sockinfo->addr), 0, sizeof(struct sockaddr_in));
203	+	udp_sockinfo->addr.sin_family=AF_INET;
204	+	memcpy((char *)&(udp_sockinfo->addr.sin_addr), &haddr, sizeof(haddr));
205	+	udp_sockinfo->addr.sin_port = htons(port);
206	+
207	+	log_msg(LOG_DEBUG, "Socket created");
208	+	return 0;
209	+	}
210	+
211	+	FILE *create_tcp_connection(char *hostname, int port){
212	+	int sock;
213	+	struct sockaddr_in addr;
214	+	struct in_addr haddr;
215	+	FILE *f;
216	+
217	+	log_msg(LOG_DEBUG, "Creating tcp socket");
218	+	if((sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP))<0){
219	+	log_msg(LOG_CRIT, "Failed to make TCP Socket");
220	+	return NULL;
221	+	}
222	+
223	+	if((get_host_addr(hostname, &haddr))!=0){
224	+	log_msg(LOG_CRIT, "Failed to lookup name for %s", hostname);
225	+	return NULL;
226	+	}
227	+
228	+	memset(&addr, 0, sizeof(addr));
229	+	addr.sin_family = AF_INET;
230	+	memcpy(&addr.sin_addr, &haddr, sizeof(haddr));
231	+	addr.sin_port = htons(port);
232	+
233	+	log_msg(LOG_DEBUG, "Creating a tcp connection");
234	+	if(connect(sock, (struct sockaddr *)&addr, sizeof(addr)) !=0){
235	+	log_msg(LOG_CRIT, "Failed to connect to hostname %s on port %d", hostname, port);
236	+	return NULL;
237	+	}
238	+
239	+	if((f=fdopen(sock, "r+"))==NULL){
240	+	log_msg(LOG_CRIT, "Failed to connect to open filedescriptor on tcp connection");
241	+	close(sock);
242	+	return NULL;
243	+	}
244	+
245	+	return f;
246	+	}
247	+
248	+	int tcp_comm(FILE *f, char *send, char **response, char *expected){
249	+
250	+	log_msg(LOG_DEBUG, "Sending %s", send);
251	+	fprintf(f, "%s\n", send);
252	+	fflush(f);
253	+	*response=fpgetline(f);
254	+	fseek(f, 0, SEEK_CUR);
255	+
256	+	if(*response!=NULL) log_msg(LOG_DEBUG, "Recieved %s", *response);
257	+
258	+	if( (*response==NULL) || (strcmp(*response, "ERROR")==0) ) return -1;
259
260	<	reply=sock_comm(fm_fd, "STARTCONFIG\n");
261	<	if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
262	<	errf("Server error");
260	>	if(expected==NULL) return 0;
261	>
262	>	if((strcmp(expected, *response))==0) return 0;
263	>
264	>	log_msg(LOG_DEBUG, "Did not get expected response");
265	>	return -1;
266	>	}
267	>
268	>	int tcp_comm_strdup(FILE *f, char *send, char **response, char *expected){
269	>	if((tcp_comm(f, send, response, expected))!=0){
270		return -1;
271		}
272
273	<	reply=sock_comm(fm_fd, "LASTMODIFIED\n");
274	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5))){
275	<	errf("Server error (%m)");
276	<	return -1;
273	>	*response=strdup(*response);
274	>	if (response==NULL) return -1;
275	>
276	>	return 0;
277	>	}
278	>
279	>	int ihost_getconfig(ihost_state_t *ihost_state){
280	>
281	>	FILE *tcp_con;
282	>	char *response;
283	>	char *response_ptr;
284	>
285	>	/* Keep these in case of a failure and so it can keep running on the old config */
286	>	char *file_list=NULL;
287	>	char *last_modified=NULL;
288	>	char *host_fqdn=NULL;
289	>	char *host_ip=NULL;
290	>	int udp_update_time=0;
291	>	char *server_fqdn=NULL;
292	>	int server_udp_port=0;
293	>	time_t config_ttl=0;
294	>
295	>	if((tcp_con=create_tcp_connection(ihost_state->filtermanager_host, ihost_state->filtermanager_port))==NULL){
296	>	goto error;
297		}
298	<	ihost_state->last_modified=atol(reply);
298	>
299	>	if(ihost_state->file_list!=NULL || ihost_state->last_modified!=NULL){
300	>	if(tcp_con==NULL){
301	>	goto error;
302	>	}
303
304	<	reply=sock_comm(fm_fd, "FILELIST\n");
305	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5))){
306	<	errf("Server error (%m)");
307	<	return -1;
304	>	if((tcp_comm(tcp_con, "CHECKCONFIG", &response, "OK"))!=0){
305	>	goto error;
306	>	}
307	>
308	>	if((tcp_comm(tcp_con, ihost_state->file_list, &response, "OK"))!=0){
309	>	goto error;
310	>	}
311	>
312	>	if((tcp_comm(tcp_con, ihost_state->last_modified, &response, "OK"))==0){
313	>	if((tcp_comm(tcp_con, "END", &response, "OK"))!=0){
314	>	goto error;
315	>	}
316	>	fclose(tcp_con);
317	>	return 0;
318	>	}else{
319	>	if((strcmp(response, "EXPIRED"))!=0){
320	>	goto error;
321	>	}
322	>	}
323		}
324	<	if((ihost_state->files_list=strdup(reply)) == NULL){
325	<	errf("strdup failed (%m)");
326	<	return -1;
324	>
325	>	/* If we got to here, the config must of expired */
326	>
327	>	if((tcp_comm(tcp_con, "STARTCONFIG", &response, "OK"))!=0){
328	>	goto error;
329		}
330
331	<	reply=sock_comm(fm_fd, "FQDN\n");
332	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5))){
94	<	errf("Server error (%m)");
95	<	return -1;
331	>	if((tcp_comm_strdup(tcp_con, "LASTMODIFIED", &response, NULL))!=0){
332	>	goto error;
333		}
334	<	if((ihost_state->my_fqdn=strdup(reply)) == NULL){
335	<	errf("strdup failed (%m)");
336	<	return -1;
334	>	last_modified=response;
335	>
336	>	if((tcp_comm_strdup(tcp_con, "FILELIST", &response, NULL))!=0){
337	>	goto error;
338		}
339	+	file_list=response;
340
341	<	reply=sock_comm(fm_fd, "UDPUpdateTime\n");
342	<	if(reply== NULL){
104	<	errf("Server error (%m)");
105	<	return -1;
341	>	if((tcp_comm_strdup(tcp_con, "FQDN", &response, NULL))!=0){
342	>	goto error;
343		}
344	<	if (strncasecmp(reply, "ERROR", 5) != 0){
345	<	ihost_state->udp_update_time=atoi(reply);
344	>	host_fqdn=response;
345	>
346	>	if((tcp_comm_strdup(tcp_con, "IP", &response, NULL))!=0){
347	>	goto error;
348		}
349	+	host_ip=response;
350
351	<	reply=sock_comm(fm_fd, "TCPUpdateTime\n");
352	<	if(reply== NULL){
113	<	errf("Server error (%m)");
114	<	return -1;
351	>	if((tcp_comm(tcp_con, "UDPUpdateTime", &response, NULL))!=0){
352	>	goto error;
353		}
354	<	if (strncasecmp(reply, "ERROR", 5) != 0){
355	<	ihost_state->tcp_update_time=atoi(reply);
354	>	udp_update_time=atoi(response);
355	>
356	>	if((tcp_comm(tcp_con, "ConfigTTL", &response, NULL))!=0){
357	>	goto error;
358		}
359	+	config_ttl=atoi(response);
360
361	<	reply=sock_comm(fm_fd, "ENDCONFIG\n");
362	<	if(reply== NULL){
122	<	errf("Server error (%m)");
123	<	return -1;
361	>	if((tcp_comm(tcp_con, "ENDCONFIG", &response, NULL))!=0){
362	>	goto error;
363		}
364
365	<
365	>	if((tcp_comm(tcp_con, "FILTER", &response, NULL))!=0){
366	>	goto error;
367	>	}else{
368	>	response_ptr=strchr(response,';');
369	>	if(response_ptr==NULL){
370	>	log_msg(LOG_ERR, "Incorrect data sent by server");
371	>	goto error;
372	>	}
373	>	*response_ptr='\0';
374	>	server_fqdn=strdup(response);
375	>	if(server_fqdn==NULL){
376	>	goto error;
377	>	}
378	>	response_ptr++;
379	>	if(response_ptr==NULL){
380	>	log_msg(LOG_ERR, "Incorrect data sent by server");
381	>	goto error;
382	>	}
383
384	+	printf("string : %s\n", response_ptr);
385	+	server_udp_port=atoi(response_ptr);
386
387	+	if (server_udp_port==0){
388	+	log_msg(LOG_ERR, "Incorrect data sent by server");
389	+	goto error;
390	+	}
391	+	}
392	+
393	+	if((tcp_comm(tcp_con, "END", &response, "OK"))!=0){
394	+	goto error;
395	+	}
396	+
397	+	fclose(tcp_con);
398	+
399	+	/* We have the data we need, and its all been read correctly */
400	+
401	+	/* Free the old data before pointing them to the new data. m_free copes should
402	+	* this already be NULL */
403	+	if(ihost_state->file_list!=NULL) free(ihost_state->file_list);
404	+	if(ihost_state->last_modified!=NULL) free(ihost_state->last_modified);
405	+	if(ihost_state->host_fqdn!=NULL) free(ihost_state->host_fqdn);
406	+	if(ihost_state->server_fqdn!=NULL) free(ihost_state->server_fqdn);
407	+	if(ihost_state->host_ip!=NULL) free(ihost_state->host_ip);
408	+
409	+	ihost_state->file_list=file_list;
410	+	ihost_state->last_modified=last_modified;
411	+	ihost_state->host_fqdn=host_fqdn;
412	+	ihost_state->host_ip=host_ip;
413	+	ihost_state->server_fqdn=server_fqdn;
414	+	ihost_state->server_udp_port=server_udp_port;
415	+	ihost_state->udp_update_time=udp_update_time;
416	+	ihost_state->config_ttl=config_ttl;
417	+
418	+	log_msg(LOG_DEBUG, "UDP Update time %d", udp_update_time);
419	+	log_msg(LOG_DEBUG, "Configure ttl %d", config_ttl);
420	+
421		return 0;
422
423	+	error:
424	+
425	+	if(file_list!=NULL) free(file_list);
426	+	if(last_modified!=NULL) free(last_modified);
427	+	if(host_fqdn!=NULL) free(host_fqdn);
428	+	if(server_fqdn!=NULL) free(server_fqdn);
429	+	if(host_ip!=NULL) free(host_ip);
430	+	fclose(tcp_con);
431	+
432	+	return -1;
433		}
434
435	<	int main(){
435	>	int get_system_stats(int seq_no, ihost_state_t *ihost_state, char *xml, int size){
436	>	char tmp[size];
437	>	cpu_percent_t *cpu_percent;
438	>	mem_stat_t *mem_stats;
439	>	load_stat_t *load_stats;
440	>	user_stat_t *user_stats;
441	>	swap_stat_t *swap_stats;
442	>	general_stat_t *general_stats;
443	>	disk_stat_t *disk_stats;
444	>	diskio_stat_t *diskio_stats;
445	>	process_stat_t *process_stats;
446	>	network_stat_t *network_stats;
447	>	page_stat_t *page_stats;
448	>	int disk_entries=0;
449	>	int diskio_entries=0;
450	>	int network_entries=0;
451
452	+	int counter;
453	+	long long x;
454	+	long long y;
455	+
456	+	/* Print start of the packet we want */
457	+	snprintf(xml, size, "<packet seq_no=\"%d\" machine_name=\"%s\" date=\"%ld\" type=\"data\" ip=\"%s\">", \
458	+	seq_no, ihost_state->host_fqdn, time(NULL), ihost_state->host_ip);
459	+
460	+	/* Get cpu stats, check it is correct, then fill in its entry for the xml */
461	+	if((cpu_percent=cpu_percent_usage())==NULL){
462	+	log_msg(LOG_CRIT, "Failed to get cpu statistics");
463	+	}else{
464	+	snprintf(tmp, size, \
465	+	"<cpu><user>%3.2f</user><kernel>%3.2f</kernel><idle>%3.2f</idle><iowait>%3.2f</iowait><swap>%3.2f</swap></cpu>", \
466	+	cpu_percent->user, \
467	+	cpu_percent->kernel, \
468	+	cpu_percent->idle, \
469	+	cpu_percent->iowait, \
470	+	cpu_percent->swap);
471	+
472	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
473	+	}
474	+
475	+
476	+	/*Get mem stats, and fill in xml */
477	+	if((mem_stats=get_memory_stats())==NULL){
478	+	log_msg(LOG_CRIT, "Failed to get memory statistics");
479	+	}else{
480	+	snprintf(tmp, size, \
481	+	"<memory><total>%lld</total><free>%lld</free><used>%lld</used><cache>%lld</cache></memory>", \
482	+	mem_stats->total, \
483	+	mem_stats->free, \
484	+	mem_stats->used, \
485	+	mem_stats->cache);
486	+
487	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
488	+	}
489	+
490	+
491	+	/* Get load stats */
492	+	if((load_stats=get_load_stats())==NULL){
493	+	log_msg(LOG_CRIT, "Failed to get load statistics");
494	+	}else{
495	+	snprintf(tmp, size, \
496	+	"<load><load1>%.2lf</load1><load5>%.2lf</load5><load15>%.2lf</load15></load>", \
497	+	load_stats->min1, \
498	+	load_stats->min5, \
499	+	load_stats->min15);
500	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
501	+	}
502	+
503	+
504	+	/* get user stats */
505	+
506	+	if((user_stats=get_user_stats())==NULL){
507	+	log_msg(LOG_CRIT, "Failed to get user statistics");
508	+	}else{
509	+
510	+	snprintf(tmp, size, \
511	+	"<users><list>%s</list><count>%d</count></users>", \
512	+	user_stats->name_list, \
513	+	user_stats->num_entries);
514	+
515	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
516	+	}
517	+
518	+
519	+	/* swap stats */
520	+	if((swap_stats=get_swap_stats())==NULL){
521	+	log_msg(LOG_CRIT, "Failed to get swap statistics");
522	+	}else{
523	+	snprintf(tmp, size, \
524	+	"<swap><total>%lld</total><used>%lld</used><free>%lld</free></swap>",\
525	+	swap_stats->total, \
526	+	swap_stats->used, \
527	+	swap_stats->free);
528	+
529	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
530	+	}
531	+
532	+
533	+	/* general stats */
534	+
535	+	if((general_stats=get_general_stats())==NULL){
536	+	log_msg(LOG_CRIT, "Failed to get general statistics");
537	+	}else{
538	+	snprintf(tmp, size, \
539	+	"<os><name>%s</name><release>%s</release><version>%s</version><sysname>%s</sysname><platform>%s</platform><uptime>%ld</uptime></os>", \
540	+	general_stats->os_name, \
541	+	general_stats->os_release, \
542	+	general_stats->os_version, \
543	+	general_stats->hostname, \
544	+	general_stats->platform, \
545	+	(long)general_stats->uptime);
546	+
547	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
548	+
549	+	}
550	+
551	+
552	+	/* process stats */
553	+	if((process_stats=get_process_stats())==NULL){
554	+	log_msg(LOG_CRIT, "Failed to get general statistics");
555	+	}else{
556	+	snprintf(tmp, size, \
557	+	"<processes><sleeping>%d</sleeping><cpu>%d</cpu><zombie>%d</zombie><stopped>%d</stopped><total>%d</total></processes>",\
558	+	process_stats->sleeping, \
559	+	process_stats->running, \
560	+	process_stats->zombie, \
561	+	process_stats->stopped, \
562	+	process_stats->total);
563	+
564	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
565	+
566	+	}
567	+
568	+
569	+	/* Get paging stats */
570	+	if((page_stats=get_page_stats_diff())==NULL){
571	+	log_msg(LOG_CRIT, "Failed to get paging statistics");
572	+	}else{
573	+	if(page_stats->systime!=0){
574	+	x=page_stats->pages_pagein / page_stats->systime;
575	+	y=page_stats->pages_pageout / page_stats->systime;
576	+	}else{
577	+	x=page_stats->pages_pagein;
578	+	y=page_stats->pages_pageout;
579	+	}
580	+	snprintf(tmp, size, \
581	+	"<pages><swapins>%lld</swapins><swapouts>%lld</swapouts></pages>", \
582	+	x, \
583	+	y);
584	+
585	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
586	+	}
587	+
588	+
589	+	/* get diskio stats */
590	+
591	+	if((diskio_stats=get_diskio_stats_diff(&diskio_entries))==NULL){
592	+	log_msg(LOG_CRIT, "Failed to get diskio statistics");
593	+	}else{
594	+	strlcat(xml, "<diskio>", size);
595	+	for(counter=0;counter<diskio_entries;counter++){
596	+
597	+	if(diskio_stats->systime!=0){
598	+	x=diskio_stats->read_bytes / diskio_stats->systime;
599	+	y=diskio_stats->write_bytes / diskio_stats->systime;
600	+	}else{
601	+	x=diskio_stats->read_bytes;
602	+	y=diskio_stats->write_bytes;
603	+	}
604	+
605	+	snprintf(tmp, size, \
606	+	"<p%d name=\"%s\" rbytes=\"%lld\" wbytes=\"%lld\"></p%d>", \
607	+	counter, \
608	+	diskio_stats->disk_name, \
609	+	x, \
610	+	y, \
611	+	counter);
612	+
613	+	strlcat(xml, tmp, size);
614	+	diskio_stats++;
615	+	}
616	+
617	+	if(strlcat(xml, "</diskio>", size) >= size) goto too_big_error;
618	+
619	+	}
620	+
621	+
622	+	/* get networks stats */
623	+
624	+	if((network_stats=get_network_stats_diff(&network_entries))==NULL){
625	+	log_msg(LOG_CRIT, "Failed to get network statistics");
626	+	}else{
627	+	strlcat(xml, "<net>", size);
628	+	for(counter=0;counter<network_entries;counter++){
629	+	if(network_stats->systime!=0){
630	+	x=network_stats->rx / network_stats->systime;
631	+	y=network_stats->tx / network_stats->systime;
632	+	}else{
633	+	x=network_stats->rx;
634	+	y=network_stats->tx;
635	+	}
636	+
637	+	snprintf(tmp, size, \
638	+	"<p%d name=\"%s\" rx=\"%lld\" tx=\"%lld\"></p%d>", \
639	+	counter, \
640	+	network_stats->interface_name, \
641	+	x, \
642	+	y, \
643	+	counter);
644	+
645	+	strlcat(xml, tmp, size);
646	+	network_stats++;
647	+	}
648	+
649	+	if(strlcat(xml, "</net>", size) >= size) goto too_big_error;
650	+
651	+	}
652	+
653	+
654	+	/* get disk stats */
655	+
656	+	if((disk_stats=get_disk_stats(&disk_entries))==NULL){
657	+	log_msg(LOG_CRIT, "Failed to get disk statistics");
658	+	}else{
659	+	strlcat(xml, "<disk>", size);
660	+	for(counter=0;counter<disk_entries;counter++){
661	+	snprintf(tmp, size, \
662	+	"<p%d name=\"%s\" mount=\"%s\" fstype=\"%s\" total=\"%lld\" used=\"%lld\" avail=\"%lld\" totalinodes=\"%lld\" usedinodes=\"%lld\" freeinodes=\"%lld\"></p%d>", \
663	+	counter, \
664	+	disk_stats->device_name, \
665	+	disk_stats->mnt_point, \
666	+	disk_stats->fs_type, \
667	+	disk_stats->size, \
668	+	disk_stats->used, \
669	+	disk_stats->avail, \
670	+	disk_stats->total_inodes, \
671	+	disk_stats->used_inodes, \
672	+	disk_stats->free_inodes, \
673	+	counter);
674	+
675	+	strlcat(xml, tmp, size);
676	+
677	+	disk_stats++;
678	+	}
679	+
680	+	if(strlcat(xml, "</disk>", size) >= size) goto too_big_error;
681	+
682	+	}
683	+
684	+
685	+	if(strlcat(xml, "</packet>", size) >= size) goto too_big_error;
686	+
687	+	/*If we got to here, it should of all been filled in nicely now */
688		return 0;
689	+
690	+	too_big_error:
691	+	log_msg(LOG_ERR, "UDP Packet is too large. Throwing away the packet");
692	+	return -1;
693		}
694
695	+
696	+
697	+	void usage(char *progname){
698	+	fprintf(stderr, "Usage %s [options] server port\n", progname);
699	+	fprintf(stderr, "Options\n");
700	+	fprintf(stderr, "  -v           Verbose mode,-vv would make even more verbose\n");
701	+	fprintf(stderr, "  -f           Foreground mode, print errors to stderr\n");
702	+	fprintf(stderr, "  -V           Print version number\n");
703	+	fprintf(stderr, "  -h           Prints this help page\n");
704	+	exit(1);
705	+	}
706	+
707	+	int main(int argc, char **argv){
708	+
709	+	ihost_state_t ihost_state;
710	+	udp_sockinfo_t udp_sockinfo;
711	+
712	+	int cmdopt;
713	+	extern int optind;
714	+	pid_t pid;
715	+	FILE *f;
716	+	int packet_num=0;
717	+	int len;
718	+
719	+	char packet[MAX_UDP_PACKET_SIZE];
720	+
721	+	time_t cur_time, sleep_delay, udp_time=0, config_time=0;
722	+
723	+	/* Set default settings */
724	+	ihost_config.verbose=1;
725	+	ihost_config.daemon=1;
726	+	/* Set all errors to go down stderr until told otherwise */
727	+	ihost_config.log=stderr;
728	+
729	+	/* Blank ihost_state to default settings */
730	+	ihost_state.filtermanager_host=NULL;
731	+	ihost_state.host_fqdn=NULL;
732	+	ihost_state.host_ip=NULL;
733	+	ihost_state.server_fqdn=NULL;
734	+	ihost_state.file_list=NULL;
735	+	ihost_state.last_modified=NULL;
736	+
737	+	while((cmdopt=getopt(argc, argv, "vfhV")) != -1){
738	+	switch(cmdopt){
739	+	case 'v':
740	+	ihost_config.verbose++;
741	+	break;
742	+
743	+	case 'f':
744	+	/* Force syslog logging since stderr will be closed in this case */
745	+	ihost_config.daemon=0;
746	+	break;
747	+
748	+	case 'h':
749	+	usage(argv[0]);
750	+	break;
751	+
752	+	case 'V':
753	+	fprintf(stderr, "%s version %s\n", argv[0], VERSION);
754	+	break;
755	+
756	+	default:
757	+	usage(argv[0]);
758	+	exit(1);
759	+	}
760	+	}
761	+
762	+	if(argc!=optind+2){
763	+	usage(argv[0]);
764	+	exit(1);
765	+	}
766	+
767	+	ihost_state.filtermanager_host=strdup(argv[optind]);
768	+	ihost_state.filtermanager_port=atoi(argv[optind+1]);
769	+
770	+	if(gethostbyname(ihost_state.filtermanager_host)==NULL){
771	+	log_msg(LOG_CRIT, "Failed to lookup hostname. Please check settings");
772	+	exit(1);
773	+	}
774	+	if(ihost_state.filtermanager_port==0){
775	+	log_msg(LOG_ERR, "Invalid port number");
776	+	exit(1);
777	+	}
778	+
779	+	if(ihost_config.daemon){
780	+	pid=fork();
781	+	if(pid==-1){
782	+	log_msg(LOG_CRIT, "Failed to background exiting");
783	+	exit(1);
784	+	}else if(pid!=0){
785	+	/* Parent process */
786	+	return 0;
787	+	}
788	+	/* We should now be in the background*/
789	+	if(setsid()==-1){
790	+	log_msg(LOG_CRIT, "setsid failed");
791	+	exit(1);
792	+	}
793	+
794	+	if((ihost_config.log=fopen(LOG_FILE, "a"))==NULL){
795	+	ihost_config.log=stderr;
796	+	log_msg(LOG_CRIT, "Failed to open Logfiles %s for writing", LOG_FILE);
797	+	exit(1);
798	+	}
799	+
800	+	fclose(stdin);
801	+	fclose(stdout);
802	+	fclose(stderr);
803	+
804	+	}
805	+
806	+	log_msg(LOG_INFO, "Starting ihost");
807	+
808	+	log_msg(LOG_DEBUG,"Writing PID FILE");
809	+
810	+	pid=getpid();
811	+
812	+	if((f=fopen(PID_FILE,"w")) == NULL){
813	+	log_msg(LOG_CRIT, "Failed to write PID file");
814	+	}else{
815	+	if((fprintf(f,"%d",(int)pid)) <= 0 ){
816	+	log_msg(LOG_CRIT, "Failed to write PID file");
817	+	}
818	+	if((fclose(f))!=0){
819	+	log_msg(LOG_CRIT, "failed to close PID file");
820	+	}
821	+	}
822	+
823	+	/* Get the initial config from the filter manager. Should this fail,
824	+	* wait, and then try again. */
825	+
826	+	get_diskio_stats_diff(&packet_num);
827	+	packet_num=0;
828	+
829	+	while(ihost_getconfig(&ihost_state)!=0){
830	+	log_msg(LOG_ERR, "Failed to get ihost config");
831	+	sleep(10);
832	+	}
833	+
834	+	printf("%s\n%d\n", ihost_state.server_fqdn, ihost_state.server_udp_port);
835	+	while((create_udp_sockinfo(&udp_sockinfo, ihost_state.server_fqdn, ihost_state.server_udp_port))!=0){
836	+	log_msg(LOG_ERR, "Failed to create udp socket");
837	+	sleep(10);
838	+	}
839	+
840	+	config_time=time(NULL)+ihost_state.config_ttl;
841	+
842	+	/* Now have config.. collect data and send as often as required */
843	+	for(;;){
844	+	cur_time=time(NULL);
845	+
846	+	if(cur_time>=udp_time){
847	+	if((get_system_stats(packet_num++, &ihost_state, packet, MAX_UDP_PACKET_SIZE))!=0){
848	+	log_msg(LOG_ERR, "Failed to get system stats");
849	+	}
850	+
851	+	len=strlen(packet);
852	+	log_msg(LOG_DEBUG, "Packet size: %d\nPacket: %s\n", len, packet);
853	+
854	+	if((sendto(udp_sockinfo.sock, packet, len, 0, (struct sockaddr *) &udp_sockinfo.addr, sizeof(udp_sockinfo.addr)))!=len){
855	+	log_msg(LOG_CRIT, "Failed to send packet");
856	+	}
857	+	udp_time=cur_time+ihost_state.udp_update_time;
858	+	log_msg(LOG_DEBUG, "Next packet should be sent on %d", udp_time);
859	+	}
860	+
861	+	if(cur_time>=config_time){
862	+	if(ihost_getconfig(&ihost_state)!=0){
863	+	/* If we can't get the config, try again 5 minutes time */
864	+	log_msg(LOG_ERR, "Failed to get config, try again 5 minutes time");
865	+	config_time=time(NULL)+300;
866	+	}else{
867	+	close(udp_sockinfo.sock);
868	+
869	+	while((create_udp_sockinfo(&udp_sockinfo, ihost_state.server_fqdn, ihost_state.server_udp_port))!=0){
870	+	log_msg(LOG_CRIT, "Failed to create udp socket");
871	+	sleep(10);
872	+	}
873	+
874	+	config_time=time(NULL)+ihost_state.config_ttl;
875	+
876	+	log_msg(LOG_DEBUG, "Config expires on %d\n", ihost_state.config_ttl);
877	+	}
878	+	}
879	+
880	+	sleep_delay=udp_time-time(NULL);
881	+	log_msg(LOG_DEBUG, "Sleeping for %d", sleep_delay);
882	+	if(sleep_delay>0) sleep(sleep_delay);
883	+	}
884	+
885	+	return(0);
886	+	}

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