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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 1.48 by tdb, Wed Jan 7 11:37:10 2004 UTC

#	Line 1 | Line 1
1	+	/*
2	+	* i-scream central monitoring system
3	+	* http://www.i-scream.org
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	>	int preset_fqdn;
51	>	int preset_ip;
52	>
53		char *server_fqdn;
54		int server_udp_port;
55	<	int server_tcp_port;
56	<	long last_modified;
57	<	char *files_list;
58	<	char *key;
55	>
56	>	/* Weird stuff iscream wants sent to it */
57	>	char *last_modified;
58	>	char *file_list;
59	>
60		int udp_update_time;
61	<	int tcp_update_time;
61	>	//      int config_ttl;
62
63	+	time_t config_ttl;
64	+
65		}ihost_state_t;
66
67	<	char* sock_comm(FILE *f, char* sendString){
68	<	char *reply;
67	>	typedef struct{
68	>	int verbose;
69	>	int daemon;
70
71	<	fprintf(f, sendString);
72	<	fflush(f);
32	<	reply=fpgetline(f);
33	<	/* Returns pointer to static buffer */
34	<	return reply;
35	<	}
71	>	FILE *log;
72	>	}ihost_config_t;
73
74	<	int ihost_configure(ihost_state_t *ihost_state){
74	>	typedef struct{
75		struct sockaddr_in addr;
76	<	struct in_addr haddr;
77	<	int sd;
41	<	FILE *fm_fd;
42	<	char *reply;
76	>	int sock;
77	>	}udp_sockinfo_t;
78
79	<	if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) {
45	<	errf("Can't create AF_INET socket (%m)");
46	<	return -1;
47	<	}
79	>	ihost_config_t ihost_config;
80
81	<	if (get_host_addr(ihost_state->fm_host, &haddr) != 0){
82	<	errf("Failed to resolve address %s (%m)", ihost_state->fm_host);
83	<	return -1;
81	>	extern int errno;
82	>
83	>	/* Taken from the OpenSSH code. Its licence included in function.*/
84	>	#ifndef HAVE_STRLCAT
85	>
86	>	/*
87	>	* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
88	>	* All rights reserved.
89	>	*
90	>	* Redistribution and use in source and binary forms, with or without
91	>	* modification, are permitted provided that the following conditions
92	>	* are met:
93	>	* 1. Redistributions of source code must retain the above copyright
94	>	*    notice, this list of conditions and the following disclaimer.
95	>	* 2. Redistributions in binary form must reproduce the above copyright
96	>	*    notice, this list of conditions and the following disclaimer in the
97	>	*    documentation and/or other materials provided with the distribution.
98	>	* 3. The name of the author may not be used to endorse or promote products
99	>	*    derived from this software without specific prior written permission.
100	>	*
101	>	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
102	>	* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
103	>	* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
104	>	* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
105	>	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
106	>	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
107	>	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
108	>	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
109	>	* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
110	>	* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
111	>	*/
112	>
113	>	/*
114	>	* Appends src to string dst of size siz (unlike strncat, siz is the
115	>	* full size of dst, not space left).  At most siz-1 characters
116	>	* will be copied.  Always NUL terminates (unless siz <= strlen(dst)).
117	>	* Returns strlen(src) + MIN(siz, strlen(initial dst)).
118	>	* If retval >= siz, truncation occurred.
119	>	*/
120	>	size_t
121	>	strlcat(dst, src, siz)
122	>	char *dst;
123	>	const char *src;
124	>	size_t siz;
125	>	{
126	>	register char *d = dst;
127	>	register const char *s = src;
128	>	register size_t n = siz;
129	>	size_t dlen;
130	>
131	>	/* Find the end of dst and adjust bytes left but don't go past end */
132	>	while (n-- != 0 && *d != '\0')
133	>	d++;
134	>	dlen = d - dst;
135	>	n = siz - dlen;
136	>
137	>	if (n == 0)
138	>	return(dlen + strlen(s));
139	>	while (*s != '\0') {
140	>	if (n != 1) {
141	>	*d++ = *s;
142	>	n--;
143	>	}
144	>	s++;
145	>	}
146	>	*d = '\0';
147	>
148	>	return(dlen + (s - src));       /* count does not include NUL */
149	>	}
150	>
151	>	#endif
152	>	/* End strlcat function taken from OpenSSH */
153	>
154	>	void log_msg(int level, char *format, ...){
155	>	int cur_errno;
156	>	va_list ap;
157	>
158	>	cur_errno=errno;
159	>
160	>	if(level<=ihost_config.verbose){
161	>	va_start(ap, format);
162	>	vfprintf(ihost_config.log, format, ap);
163	>	va_end(ap);
164	>	if(level==LOG_CRIT){
165	>	fprintf(ihost_config.log, " (%s)\n", strerror(cur_errno));
166	>	}else{
167	>	fprintf(ihost_config.log, "\n");
168	>	}
169	>	fflush(ihost_config.log);
170		}
171	+	}
172
173	<	memset((char *)&addr, 0, sizeof addr);
55	<	addr.sin_family = AF_INET;
56	<	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
57	<	addr.sin_port =  htons(ihost_state->fm_port);
173	>	int create_udp_sockinfo(udp_sockinfo_t *udp_sockinfo, char *hostname, int port){
174
175	<	if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
176	<	errf("Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
177	<	return -1;
175	>	struct in_addr haddr;
176	>
177	>	log_msg(LOG_DEBUG, "Resolving name for udp connection");
178	>	if(get_host_addr(hostname, &haddr) != 0){
179	>	log_msg(LOG_CRIT, "Failed to lookup name");
180	>	return 1;
181		}
182
183	<	if ((fm_fd=fdopen(sd,"r+")) == NULL){
184	<	errf("Failed to open stream (%m)");
185	<	return -1;
183	>	if((udp_sockinfo->sock=socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0){
184	>	log_msg(LOG_CRIT, "Failed to create UDP socket");
185	>	return 1;
186		}
187	+
188	+	memset(&(udp_sockinfo->addr), 0, sizeof(struct sockaddr_in));
189	+	udp_sockinfo->addr.sin_family=AF_INET;
190	+	memcpy((char *)&(udp_sockinfo->addr.sin_addr), &haddr, sizeof(haddr));
191	+	udp_sockinfo->addr.sin_port = htons(port);
192	+
193	+	log_msg(LOG_DEBUG, "Socket created");
194	+	return 0;
195	+	}
196	+
197	+	FILE *create_tcp_connection(char *hostname, int port){
198	+	int sock;
199	+	struct sockaddr_in addr;
200	+	struct in_addr haddr;
201	+	FILE *f;
202	+
203	+	log_msg(LOG_DEBUG, "Creating tcp socket");
204	+	if((sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP))<0){
205	+	log_msg(LOG_CRIT, "Failed to make TCP Socket");
206	+	return NULL;
207	+	}
208	+
209	+	if((get_host_addr(hostname, &haddr))!=0){
210	+	log_msg(LOG_CRIT, "Failed to lookup name for %s", hostname);
211	+	close(sock);
212	+	return NULL;
213	+	}
214	+
215	+	memset(&addr, 0, sizeof(addr));
216	+	addr.sin_family = AF_INET;
217	+	memcpy(&addr.sin_addr, &haddr, sizeof(haddr));
218	+	addr.sin_port = htons(port);
219	+
220	+	log_msg(LOG_DEBUG, "Creating a tcp connection");
221	+	if(connect(sock, (struct sockaddr *)&addr, sizeof(addr)) !=0){
222	+	log_msg(LOG_CRIT, "Failed to connect to hostname %s on port %d", hostname, port);
223	+	close(sock);
224	+	return NULL;
225	+	}
226	+
227	+	if((f=fdopen(sock, "r+"))==NULL){
228	+	log_msg(LOG_CRIT, "Failed to connect to open filedescriptor on tcp connection");
229	+	close(sock);
230	+	return NULL;
231	+	}
232	+
233	+	return f;
234	+	}
235	+
236	+	int tcp_comm(FILE *f, char *send, char **response, char *expected){
237	+
238	+	log_msg(LOG_DEBUG, "Sending %s", send);
239	+	fprintf(f, "%s\n", send);
240	+	fflush(f);
241	+	*response=fpgetline(f);
242	+	fseek(f, 0, SEEK_CUR);
243	+
244	+	if(*response!=NULL) log_msg(LOG_DEBUG, "Recieved %s", *response);
245	+
246	+	if( (*response==NULL) || (strcmp(*response, "ERROR")==0) ) return -1;
247
248	<	reply=sock_comm(fm_fd, "STARTCONFIG\n");
249	<	if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
250	<	errf("Server error");
248	>	if(expected==NULL) return 0;
249	>
250	>	if((strcmp(expected, *response))==0) return 0;
251	>
252	>	log_msg(LOG_DEBUG, "Did not get expected response");
253	>	return -1;
254	>	}
255	>
256	>	int tcp_comm_strdup(FILE *f, char *send, char **response, char *expected){
257	>	if((tcp_comm(f, send, response, expected))!=0){
258		return -1;
259		}
260
261	<	reply=sock_comm(fm_fd, "LASTMODIFIED\n");
262	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5))){
263	<	errf("Server error (%m)");
261	>	*response=strdup(*response);
262	>	if (response==NULL) return -1;
263	>
264	>	return 0;
265	>	}
266	>
267	>	int ihost_getconfig(ihost_state_t *ihost_state){
268	>
269	>	FILE *tcp_con;
270	>	char *response;
271	>	char *response_ptr;
272	>
273	>	/* Keep these in case of a failure and so it can keep running on the old config */
274	>	char *file_list=NULL;
275	>	char *last_modified=NULL;
276	>	char *host_fqdn=NULL;
277	>	char *host_ip=NULL;
278	>	int udp_update_time=0;
279	>	char *server_fqdn=NULL;
280	>	int server_udp_port=0;
281	>	time_t config_ttl=0;
282	>
283	>	if((tcp_con=create_tcp_connection(ihost_state->filtermanager_host, ihost_state->filtermanager_port))==NULL){
284		return -1;
285		}
286	<	ihost_state->last_modified=atol(reply);
286	>
287	>	if(ihost_state->file_list!=NULL || ihost_state->last_modified!=NULL){
288	>	if(tcp_con==NULL){
289	>	goto error;
290	>	}
291
292	<	reply=sock_comm(fm_fd, "FILELIST\n");
293	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5))){
294	<	errf("Server error (%m)");
295	<	return -1;
292	>	if((tcp_comm(tcp_con, "CHECKCONFIG", &response, "OK"))!=0){
293	>	goto error;
294	>	}
295	>
296	>	if((tcp_comm(tcp_con, ihost_state->file_list, &response, "OK"))!=0){
297	>	goto error;
298	>	}
299	>
300	>	if((tcp_comm(tcp_con, ihost_state->last_modified, &response, "OK"))==0){
301	>	if((tcp_comm(tcp_con, "END", &response, "OK"))!=0){
302	>	goto error;
303	>	}
304	>	fclose(tcp_con);
305	>	return 0;
306	>	}else{
307	>	if((strcmp(response, "EXPIRED"))!=0){
308	>	goto error;
309	>	}
310	>	}
311		}
312	<	if((ihost_state->files_list=strdup(reply)) == NULL){
313	<	errf("strdup failed (%m)");
314	<	return -1;
312	>
313	>	/* If we got to here, the config must of expired */
314	>
315	>	if((tcp_comm(tcp_con, "STARTCONFIG", &response, "OK"))!=0){
316	>	goto error;
317		}
318
319	<	reply=sock_comm(fm_fd, "FQDN\n");
320	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5))){
94	<	errf("Server error (%m)");
95	<	return -1;
319	>	if((tcp_comm_strdup(tcp_con, "LASTMODIFIED", &response, NULL))!=0){
320	>	goto error;
321		}
322	<	if((ihost_state->my_fqdn=strdup(reply)) == NULL){
323	<	errf("strdup failed (%m)");
324	<	return -1;
322	>	last_modified=response;
323	>
324	>	if((tcp_comm_strdup(tcp_con, "FILELIST", &response, NULL))!=0){
325	>	goto error;
326		}
327	+	file_list=response;
328
329	<	reply=sock_comm(fm_fd, "UDPUpdateTime\n");
330	<	if(reply== NULL){
104	<	errf("Server error (%m)");
105	<	return -1;
329	>	if((tcp_comm_strdup(tcp_con, "FQDN", &response, NULL))!=0){
330	>	goto error;
331		}
332	<	if (strncasecmp(reply, "ERROR", 5) != 0){
333	<	ihost_state->udp_update_time=atoi(reply);
332	>	host_fqdn=response;
333	>
334	>	if((tcp_comm_strdup(tcp_con, "IP", &response, NULL))!=0){
335	>	goto error;
336		}
337	+	host_ip=response;
338
339	<	reply=sock_comm(fm_fd, "TCPUpdateTime\n");
340	<	if(reply== NULL){
113	<	errf("Server error (%m)");
114	<	return -1;
339	>	if((tcp_comm(tcp_con, "UDPUpdateTime", &response, NULL))!=0){
340	>	goto error;
341		}
342	<	if (strncasecmp(reply, "ERROR", 5) != 0){
343	<	ihost_state->tcp_update_time=atoi(reply);
342	>	udp_update_time=atoi(response);
343	>
344	>	if((tcp_comm(tcp_con, "ConfigTTL", &response, NULL))!=0){
345	>	goto error;
346		}
347	+	config_ttl=atoi(response);
348
349	<	reply=sock_comm(fm_fd, "ENDCONFIG\n");
350	<	if(reply== NULL){
122	<	errf("Server error (%m)");
123	<	return -1;
349	>	if((tcp_comm(tcp_con, "ENDCONFIG", &response, NULL))!=0){
350	>	goto error;
351		}
352
353	<
353	>	if((tcp_comm(tcp_con, "FILTER", &response, NULL))!=0){
354	>	goto error;
355	>	}else{
356	>	response_ptr=strchr(response,';');
357	>	if(response_ptr==NULL){
358	>	log_msg(LOG_ERR, "Incorrect data sent by server");
359	>	goto error;
360	>	}
361	>	*response_ptr='\0';
362	>	server_fqdn=strdup(response);
363	>	if(server_fqdn==NULL){
364	>	goto error;
365	>	}
366	>	response_ptr++;
367	>	if(response_ptr==NULL){
368	>	log_msg(LOG_ERR, "Incorrect data sent by server");
369	>	goto error;
370	>	}
371
372	+	server_udp_port=atoi(response_ptr);
373
374	+	if (server_udp_port==0){
375	+	log_msg(LOG_ERR, "Incorrect data sent by server");
376	+	goto error;
377	+	}
378	+	}
379	+
380	+	if((tcp_comm(tcp_con, "END", &response, "OK"))!=0){
381	+	goto error;
382	+	}
383	+
384	+	fclose(tcp_con);
385	+
386	+	/* We have the data we need, and its all been read correctly */
387	+
388	+	/* Free the old data before pointing them to the new data. m_free copes should
389	+	* this already be NULL */
390	+	if(ihost_state->file_list!=NULL) free(ihost_state->file_list);
391	+	if(ihost_state->last_modified!=NULL) free(ihost_state->last_modified);
392	+	if(ihost_state->server_fqdn!=NULL) free(ihost_state->server_fqdn);
393	+
394	+	if(ihost_state->preset_fqdn){
395	+	if(host_fqdn != NULL) free(host_fqdn);
396	+	}else{
397	+	if(ihost_state->host_fqdn!=NULL) free(ihost_state->host_fqdn);
398	+	ihost_state->host_fqdn=host_fqdn;
399	+	}
400	+
401	+	if(ihost_state->preset_ip){
402	+	if(host_ip != NULL) free(host_ip);
403	+	}else{
404	+	if(ihost_state->host_ip!=NULL) free(ihost_state->host_ip);
405	+	ihost_state->host_ip=host_ip;
406	+	}
407	+
408	+
409	+	ihost_state->file_list=file_list;
410	+	ihost_state->last_modified=last_modified;
411	+	ihost_state->server_fqdn=server_fqdn;
412	+	ihost_state->server_udp_port=server_udp_port;
413	+	ihost_state->udp_update_time=udp_update_time;
414	+	ihost_state->config_ttl=config_ttl;
415	+
416	+	log_msg(LOG_DEBUG, "UDP Update time %d", udp_update_time);
417	+	log_msg(LOG_DEBUG, "Configure ttl %d", config_ttl);
418	+
419		return 0;
420
421	+	error:
422	+
423	+	if(file_list!=NULL) free(file_list);
424	+	if(last_modified!=NULL) free(last_modified);
425	+	if(host_fqdn!=NULL) free(host_fqdn);
426	+	if(server_fqdn!=NULL) free(server_fqdn);
427	+	if(host_ip!=NULL) free(host_ip);
428	+	fclose(tcp_con);
429	+
430	+	return -1;
431		}
432
433	<	int main(){
433	>	int get_system_stats(int seq_no, ihost_state_t *ihost_state, char *xml, int size){
434	>	char tmp[size];
435	>	cpu_percent_t *cpu_percent;
436	>	mem_stat_t *mem_stats;
437	>	load_stat_t *load_stats;
438	>	user_stat_t *user_stats;
439	>	swap_stat_t *swap_stats;
440	>	general_stat_t *general_stats;
441	>	disk_stat_t *disk_stats;
442	>	diskio_stat_t *diskio_stats;
443	>	process_stat_t *process_stats;
444	>	network_stat_t *network_stats;
445	>	page_stat_t *page_stats;
446	>	int disk_entries=0;
447	>	int diskio_entries=0;
448	>	int network_entries=0;
449
450	+	int counter;
451	+	long long x;
452	+	long long y;
453	+
454	+	/* Print start of the packet we want */
455	+	snprintf(xml, size, "<packet seq_no=\"%d\" machine_name=\"%s\" date=\"%ld\" type=\"data\" ip=\"%s\">", \
456	+	seq_no, ihost_state->host_fqdn, time(NULL), ihost_state->host_ip);
457	+
458	+	/* Get cpu stats, check it is correct, then fill in its entry for the xml */
459	+	if((cpu_percent=cpu_percent_usage())==NULL){
460	+	log_msg(LOG_CRIT, "Failed to get cpu statistics");
461	+	}else{
462	+	snprintf(tmp, size, \
463	+	"<cpu><user>%3.2f</user><kernel>%3.2f</kernel><idle>%3.2f</idle><iowait>%3.2f</iowait><swap>%3.2f</swap></cpu>", \
464	+	cpu_percent->user, \
465	+	cpu_percent->kernel, \
466	+	cpu_percent->idle, \
467	+	cpu_percent->iowait, \
468	+	cpu_percent->swap);
469	+
470	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
471	+	}
472	+
473	+
474	+	/*Get mem stats, and fill in xml */
475	+	if((mem_stats=get_memory_stats())==NULL){
476	+	log_msg(LOG_CRIT, "Failed to get memory statistics");
477	+	}else{
478	+	snprintf(tmp, size, \
479	+	"<memory><total>%lld</total><free>%lld</free><used>%lld</used><cache>%lld</cache></memory>", \
480	+	mem_stats->total, \
481	+	mem_stats->free, \
482	+	mem_stats->used, \
483	+	mem_stats->cache);
484	+
485	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
486	+	}
487	+
488	+
489	+	/* Get load stats */
490	+	if((load_stats=get_load_stats())==NULL){
491	+	log_msg(LOG_CRIT, "Failed to get load statistics");
492	+	}else{
493	+	snprintf(tmp, size, \
494	+	"<load><load1>%.2lf</load1><load5>%.2lf</load5><load15>%.2lf</load15></load>", \
495	+	load_stats->min1, \
496	+	load_stats->min5, \
497	+	load_stats->min15);
498	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
499	+	}
500	+
501	+
502	+	/* get user stats */
503	+
504	+	if((user_stats=get_user_stats())==NULL){
505	+	log_msg(LOG_CRIT, "Failed to get user statistics");
506	+	}else{
507	+
508	+	snprintf(tmp, size, \
509	+	"<users><list>%s</list><count>%d</count></users>", \
510	+	user_stats->name_list, \
511	+	user_stats->num_entries);
512	+
513	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
514	+	}
515	+
516	+
517	+	/* swap stats */
518	+	if((swap_stats=get_swap_stats())==NULL){
519	+	log_msg(LOG_CRIT, "Failed to get swap statistics");
520	+	}else{
521	+	snprintf(tmp, size, \
522	+	"<swap><total>%lld</total><used>%lld</used><free>%lld</free></swap>",\
523	+	swap_stats->total, \
524	+	swap_stats->used, \
525	+	swap_stats->free);
526	+
527	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
528	+	}
529	+
530	+
531	+	/* general stats */
532	+
533	+	if((general_stats=get_general_stats())==NULL){
534	+	log_msg(LOG_CRIT, "Failed to get general statistics");
535	+	}else{
536	+	snprintf(tmp, size, \
537	+	"<os><name>%s</name><release>%s</release><version>%s</version><sysname>%s</sysname><platform>%s</platform><uptime>%ld</uptime></os>", \
538	+	general_stats->os_name, \
539	+	general_stats->os_release, \
540	+	general_stats->os_version, \
541	+	general_stats->hostname, \
542	+	general_stats->platform, \
543	+	(long)general_stats->uptime);
544	+
545	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
546	+
547	+	}
548	+
549	+
550	+	/* process stats */
551	+	if((process_stats=get_process_stats())==NULL){
552	+	log_msg(LOG_CRIT, "Failed to get general statistics");
553	+	}else{
554	+	snprintf(tmp, size, \
555	+	"<processes><sleeping>%d</sleeping><cpu>%d</cpu><zombie>%d</zombie><stopped>%d</stopped><total>%d</total></processes>",\
556	+	process_stats->sleeping, \
557	+	process_stats->running, \
558	+	process_stats->zombie, \
559	+	process_stats->stopped, \
560	+	process_stats->total);
561	+
562	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
563	+
564	+	}
565	+
566	+
567	+	/* Get paging stats */
568	+	if((page_stats=get_page_stats_diff())==NULL){
569	+	log_msg(LOG_CRIT, "Failed to get paging statistics");
570	+	}else{
571	+	if(page_stats->systime!=0){
572	+	x=page_stats->pages_pagein / page_stats->systime;
573	+	y=page_stats->pages_pageout / page_stats->systime;
574	+	}else{
575	+	x=page_stats->pages_pagein;
576	+	y=page_stats->pages_pageout;
577	+	}
578	+	snprintf(tmp, size, \
579	+	"<pages><pageins>%lld</pageins><pageouts>%lld</pageouts></pages>", \
580	+	x, \
581	+	y);
582	+
583	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
584	+	}
585	+
586	+
587	+	/* get diskio stats */
588	+
589	+	if((diskio_stats=get_diskio_stats_diff(&diskio_entries))==NULL){
590	+	log_msg(LOG_CRIT, "Failed to get diskio statistics");
591	+	}else{
592	+	strlcat(xml, "<diskio>", size);
593	+	for(counter=0;counter<diskio_entries;counter++){
594	+
595	+	if(diskio_stats->systime!=0){
596	+	x=diskio_stats->read_bytes / diskio_stats->systime;
597	+	y=diskio_stats->write_bytes / diskio_stats->systime;
598	+	}else{
599	+	x=diskio_stats->read_bytes;
600	+	y=diskio_stats->write_bytes;
601	+	}
602	+
603	+	snprintf(tmp, size, \
604	+	"<p%d name=\"%s\" rbytes=\"%lld\" wbytes=\"%lld\"></p%d>", \
605	+	counter, \
606	+	diskio_stats->disk_name, \
607	+	x, \
608	+	y, \
609	+	counter);
610	+
611	+	strlcat(xml, tmp, size);
612	+	diskio_stats++;
613	+	}
614	+
615	+	if(strlcat(xml, "</diskio>", size) >= size) goto too_big_error;
616	+
617	+	}
618	+
619	+
620	+	/* get networks stats */
621	+
622	+	if((network_stats=get_network_stats_diff(&network_entries))==NULL){
623	+	log_msg(LOG_CRIT, "Failed to get network statistics");
624	+	}else{
625	+	strlcat(xml, "<net>", size);
626	+	for(counter=0;counter<network_entries;counter++){
627	+	if(network_stats->systime!=0){
628	+	x=network_stats->rx / network_stats->systime;
629	+	y=network_stats->tx / network_stats->systime;
630	+	}else{
631	+	x=network_stats->rx;
632	+	y=network_stats->tx;
633	+	}
634	+
635	+	snprintf(tmp, size, \
636	+	"<p%d name=\"%s\" rx=\"%lld\" tx=\"%lld\"></p%d>", \
637	+	counter, \
638	+	network_stats->interface_name, \
639	+	x, \
640	+	y, \
641	+	counter);
642	+
643	+	strlcat(xml, tmp, size);
644	+	network_stats++;
645	+	}
646	+
647	+	if(strlcat(xml, "</net>", size) >= size) goto too_big_error;
648	+
649	+	}
650	+
651	+
652	+	/* get disk stats */
653	+
654	+	if((disk_stats=get_disk_stats(&disk_entries))==NULL){
655	+	log_msg(LOG_CRIT, "Failed to get disk statistics");
656	+	}else{
657	+	strlcat(xml, "<disk>", size);
658	+	for(counter=0;counter<disk_entries;counter++){
659	+	snprintf(tmp, size, \
660	+	"<p%d name=\"%s\" mount=\"%s\" fstype=\"%s\" total=\"%lld\" used=\"%lld\" avail=\"%lld\" totalinodes=\"%lld\" usedinodes=\"%lld\" freeinodes=\"%lld\"></p%d>", \
661	+	counter, \
662	+	disk_stats->device_name, \
663	+	disk_stats->mnt_point, \
664	+	disk_stats->fs_type, \
665	+	disk_stats->size, \
666	+	disk_stats->used, \
667	+	disk_stats->avail, \
668	+	disk_stats->total_inodes, \
669	+	disk_stats->used_inodes, \
670	+	disk_stats->free_inodes, \
671	+	counter);
672	+
673	+	strlcat(xml, tmp, size);
674	+
675	+	disk_stats++;
676	+	}
677	+
678	+	if(strlcat(xml, "</disk>", size) >= size) goto too_big_error;
679	+
680	+	}
681	+
682	+
683	+	if(strlcat(xml, "</packet>", size) >= size) goto too_big_error;
684	+
685	+	/*If we got to here, it should of all been filled in nicely now */
686		return 0;
687	+
688	+	too_big_error:
689	+	log_msg(LOG_ERR, "UDP Packet is too large. Throwing away the packet");
690	+	return -1;
691		}
692
693	+
694	+
695	+	void usage(char *progname){
696	+	fprintf(stderr, "Usage %s [-v[v]] [-f] [-n name] [-i ip] [-s server] [-p port] [-V] [-h]\n\n", progname);
697	+	fprintf(stderr, "  -v    Verbose mode, -vv would make even more verbose\n");
698	+	fprintf(stderr, "  -f    Foreground mode, print errors to stderr\n");
699	+	fprintf(stderr, "  -n    Set the machine name to be reported as\n");
700	+	fprintf(stderr, "  -i    Set the IP to be reported as\n");
701	+	fprintf(stderr, "  -s    Specifies the i-scream server to connect to\n");
702	+	fprintf(stderr, "          default: %s\n", DEF_SERVER_NAME);
703	+	fprintf(stderr, "  -p    Specifies the i-scream server port\n");
704	+	fprintf(stderr, "          default: %d\n", DEF_SERVER_PORT);
705	+	fprintf(stderr, "  -V    Print version number\n");
706	+	fprintf(stderr, "  -h    Prints this help page\n");
707	+	fprintf(stderr, "\nReport bugs to <%s>.\n", PACKAGE_BUGREPORT);
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=DEF_SERVER_NAME;
735	+	ihost_state.filtermanager_port=DEF_SERVER_PORT;
736	+	ihost_state.host_fqdn=NULL;
737	+	ihost_state.host_ip=NULL;
738	+	ihost_state.preset_fqdn = 0;
739	+	ihost_state.preset_ip = 0;
740	+	ihost_state.server_fqdn=NULL;
741	+	ihost_state.file_list=NULL;
742	+	ihost_state.last_modified=NULL;
743	+
744	+	while((cmdopt=getopt(argc, argv, "vfVn:i:s:p:h")) != -1){
745	+	switch(cmdopt){
746	+	case 'v':
747	+	ihost_config.verbose++;
748	+	break;
749	+
750	+	case 'f':
751	+	/* Force syslog logging since stderr will be closed in this case */
752	+	ihost_config.daemon=0;
753	+	break;
754	+
755	+	case 'V':
756	+	fprintf(stderr, "%s version %s\n", argv[0], VERSION);
757	+	break;
758	+	case 'n':
759	+	ihost_state.preset_fqdn = 1;
760	+	ihost_state.host_fqdn = strdup(optarg);
761	+	if(ihost_state.host_fqdn == NULL){
762	+	fprintf(stderr, "Missing hostname\n");
763	+	usage(argv[0]);
764	+	}
765	+	break;
766	+	case 'i':
767	+	/* Hmm.. Someone could set any string to be the IP, and it will let it */
768	+	ihost_state.preset_ip = 1;
769	+	ihost_state.host_ip = strdup(optarg);
770	+	if(ihost_state.host_ip == NULL){
771	+	fprintf(stderr, "Missing ip\n");
772	+	usage(argv[0]);
773	+	}
774	+	break;
775	+
776	+	case 's':
777	+	ihost_state.filtermanager_host=strdup(optarg);
778	+	break;
779	+
780	+	case 'p':
781	+	ihost_state.filtermanager_port=atoi(optarg);
782	+	break;
783	+
784	+	case 'h':
785	+	default:
786	+	usage(argv[0]);
787	+	exit(1);
788	+	}
789	+	}
790	+
791	+	if(gethostbyname(ihost_state.filtermanager_host)==NULL){
792	+	log_msg(LOG_CRIT, "Failed to lookup hostname. Please check settings");
793	+	exit(1);
794	+	}
795	+	if(ihost_state.filtermanager_port==0){
796	+	log_msg(LOG_ERR, "Invalid port number");
797	+	exit(1);
798	+	}
799	+
800	+	if(ihost_config.daemon){
801	+	pid=fork();
802	+	if(pid==-1){
803	+	log_msg(LOG_CRIT, "Failed to background exiting");
804	+	exit(1);
805	+	}else if(pid!=0){
806	+	/* Parent process */
807	+	return 0;
808	+	}
809	+	/* We should now be in the background*/
810	+	if(setsid()==-1){
811	+	log_msg(LOG_CRIT, "setsid failed");
812	+	exit(1);
813	+	}
814	+
815	+	if((ihost_config.log=fopen(LOG_FILE, "a"))==NULL){
816	+	ihost_config.log=stderr;
817	+	log_msg(LOG_CRIT, "Failed to open Logfiles %s for writing", LOG_FILE);
818	+	exit(1);
819	+	}
820	+
821	+	fclose(stdin);
822	+	fclose(stdout);
823	+	fclose(stderr);
824	+
825	+	}
826	+
827	+	log_msg(LOG_INFO, "Starting ihost...");
828	+
829	+	log_msg(LOG_DEBUG, "Running statgrab_init()");
830	+	if(statgrab_init()){
831	+	log_msg(LOG_CRIT, "statgrab_init failed (%m)");
832	+	exit(1);
833	+	}
834	+
835	+	log_msg(LOG_DEBUG,"Writing PID FILE");
836	+
837	+	pid=getpid();
838	+
839	+	if((f=fopen(PID_FILE,"w")) == NULL){
840	+	log_msg(LOG_CRIT, "Failed to write PID file");
841	+	}else{
842	+	if((fprintf(f,"%d",(int)pid)) <= 0 ){
843	+	log_msg(LOG_CRIT, "Failed to write PID file");
844	+	}
845	+	if((fclose(f))!=0){
846	+	log_msg(LOG_CRIT, "failed to close PID file");
847	+	}
848	+	}
849	+
850	+	/* Get the initial config from the filter manager. Should this fail,
851	+	* wait, and then try again. */
852	+
853	+	get_diskio_stats_diff(&packet_num);
854	+	packet_num=0;
855	+
856	+	while(ihost_getconfig(&ihost_state)!=0){
857	+	log_msg(LOG_ERR, "Failed to get ihost config");
858	+	sleep(10);
859	+	}
860	+
861	+	while((create_udp_sockinfo(&udp_sockinfo, ihost_state.server_fqdn, ihost_state.server_udp_port))!=0){
862	+	log_msg(LOG_ERR, "Failed to create udp socket");
863	+	sleep(10);
864	+	}
865	+
866	+	config_time=time(NULL)+ihost_state.config_ttl;
867	+
868	+	/* Now have config.. collect data and send as often as required */
869	+	for(;;){
870	+	cur_time=time(NULL);
871	+
872	+	if(cur_time>=udp_time){
873	+	if((get_system_stats(packet_num++, &ihost_state, packet, MAX_UDP_PACKET_SIZE))!=0){
874	+	log_msg(LOG_ERR, "Failed to get system stats");
875	+	}
876	+
877	+	len=strlen(packet);
878	+	log_msg(LOG_DEBUG, "Packet size: %d\nPacket: %s\n", len, packet);
879	+
880	+	if((sendto(udp_sockinfo.sock, packet, len, 0, (struct sockaddr *) &udp_sockinfo.addr, sizeof(udp_sockinfo.addr)))!=len){
881	+	log_msg(LOG_CRIT, "Failed to send packet");
882	+	}
883	+	udp_time=cur_time+ihost_state.udp_update_time;
884	+	log_msg(LOG_DEBUG, "Next packet should be sent on %d", udp_time);
885	+	}
886	+
887	+	if(cur_time>=config_time){
888	+	if(ihost_getconfig(&ihost_state)!=0){
889	+	/* If we can't get the config, try again 5 minutes time */
890	+	log_msg(LOG_ERR, "Failed to get config, try again 5 minutes time");
891	+	config_time=time(NULL)+300;
892	+	}else{
893	+	close(udp_sockinfo.sock);
894	+
895	+	while((create_udp_sockinfo(&udp_sockinfo, ihost_state.server_fqdn, ihost_state.server_udp_port))!=0){
896	+	log_msg(LOG_CRIT, "Failed to create udp socket");
897	+	sleep(10);
898	+	}
899	+
900	+	config_time=time(NULL)+ihost_state.config_ttl;
901	+
902	+	log_msg(LOG_DEBUG, "Config expires on %d\n", ihost_state.config_ttl);
903	+	}
904	+	}
905	+
906	+	sleep_delay=udp_time-time(NULL);
907	+	log_msg(LOG_DEBUG, "Sleeping for %d", sleep_delay);
908	+	if(sleep_delay>0) sleep(sleep_delay);
909	+	}
910	+
911	+	return(0);
912	+	}

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