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

Comparing projects/cms/source/ihost/ihost.c (file contents):
Revision 1.2 by pajs, Fri May 10 20:05:05 2002 UTC vs.
Revision 1.33 by pajs, Sat Mar 8 20:41:46 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_r, FILE *f_w, char* sendString){
65	<	char *reply;
66	<	fprintf(f_w, "%s", sendString);
30	<	fflush(f_w);
31	<	reply=fpgetline(f_r);
32	<	/* Returns pointer to static buffer */
33	<	return reply;
34	<	}
64	>	typedef struct{
65	>	int verbose;
66	>	int daemon;
67
68	<	int ihost_configure(ihost_state_t *ihost_state){
68	>	FILE *log;
69	>	}ihost_config_t;
70	>
71	>	typedef struct{
72		struct sockaddr_in addr;
73	<	struct in_addr haddr;
74	<	int sd;
40	<	FILE *fm_fd_r, *fm_fd_w;
41	<	char *reply;
42	<	char *reply_ptr;
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	>	* Appends src to string dst of size siz (unlike strncat, siz is the
111	>	* full size of dst, not space left).  At most siz-1 characters
112	>	* will be copied.  Always NUL terminates (unless siz <= strlen(dst)).
113	>	* Returns strlen(src) + MIN(siz, strlen(initial dst)).
114	>	* If retval >= siz, truncation occurred.
115	>	*/
116	>	size_t
117	>	strlcat(dst, src, siz)
118	>	char *dst;
119	>	const char *src;
120	>	size_t siz;
121	>	{
122	>	register char *d = dst;
123	>	register const char *s = src;
124	>	register size_t n = siz;
125	>	size_t dlen;
126	>
127	>	/* Find the end of dst and adjust bytes left but don't go past end */
128	>	while (n-- != 0 && *d != '\0')
129	>	d++;
130	>	dlen = d - dst;
131	>	n = siz - dlen;
132	>
133	>	if (n == 0)
134	>	return(dlen + strlen(s));
135	>	while (*s != '\0') {
136	>	if (n != 1) {
137	>	*d++ = *s;
138	>	n--;
139	>	}
140	>	s++;
141	>	}
142	>	*d = '\0';
143	>
144	>	return(dlen + (s - src));       /* count does not include NUL */
145	>	}
146	>
147	>	//#endif
148	>
149	>
150	>	void log_msg(int level, char *format, ...){
151	>	int cur_errno;
152	>	va_list ap;
153	>
154	>	cur_errno=errno;
155	>
156	>	if(level<=ihost_config.verbose){
157	>	va_start(ap, format);
158	>	vfprintf(ihost_config.log, format, ap);
159	>	va_end(ap);
160	>	if(level==LOG_CRIT){
161	>	fprintf(ihost_config.log, " (%s)\n", strerror(cur_errno));
162	>	}else{
163	>	fprintf(ihost_config.log, "\n");
164	>	}
165		}
166	+	}
167
168	<	memset((char *)&addr, 0, sizeof addr);
169	<	addr.sin_family = AF_INET;
170	<	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
171	<	addr.sin_port =  htons(ihost_state->fm_port);
168	>	/* Takes many pointers, checks if they are NULL or not, and then free's them */
169	>	/* Deprciated - and i only wrote it today! :)
170	>	void m_free(int num_pointers, ...){
171	>	int x=0;
172	>	va_list ap;
173	>	void *p;
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	>	va_start(ap, num_pointers);
176	>	for(;x<num_pointers;x++){
177	>	p=va_arg(ap, void*);
178	>	if(p!=NULL){
179	>	free(p);
180	>	}
181		}
182	+	va_end(ap);
183	+	}
184	+	*/
185
186	<	/* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */
187	<	if ((fm_fd_r=fdopen(sd,"r")) == NULL){
188	<	errf("Failed to open stream (%m)");
189	<	return -1;
186	>	int create_udp_sockinfo(udp_sockinfo_t *udp_sockinfo, char *hostname, int port){
187	>
188	>	struct in_addr haddr;
189	>
190	>	log_msg(LOG_DEBUG, "Resolving name for udp connection");
191	>	if(get_host_addr(hostname, &haddr) != 0){
192	>	log_msg(LOG_CRIT, "Failed to lookup name");
193	>	return 1;
194		}
195
196	<	if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){
197	<	errf("Failed to open stream (%m)");
198	<	return -1;
196	>	if((udp_sockinfo->sock=socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0){
197	>	log_msg(LOG_CRIT, "Failed to create UDP socket");
198	>	return 1;
199		}
200
201	<	reply=sock_comm(fm_fd_r, fm_fd_w, "STARTCONFIG\n");
202	<	if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
203	<	errf("Server error");
204	<	return -1;
201	>	memset(&(udp_sockinfo->addr), 0, sizeof(struct sockaddr_in));
202	>	udp_sockinfo->addr.sin_family=AF_INET;
203	>	memcpy((char *)&(udp_sockinfo->addr.sin_addr), &haddr, sizeof(haddr));
204	>	udp_sockinfo->addr.sin_port = htons(port);
205	>
206	>	log_msg(LOG_DEBUG, "Socket created");
207	>	return 0;
208	>	}
209	>
210	>	FILE *create_tcp_connection(char *hostname, int port){
211	>	int sock;
212	>	struct sockaddr_in addr;
213	>	struct in_addr haddr;
214	>	FILE *f;
215	>
216	>	log_msg(LOG_DEBUG, "Creating tcp socket");
217	>	if((sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP))<0){
218	>	log_msg(LOG_CRIT, "Failed to make TCP Socket");
219	>	return NULL;
220		}
221
222	<	reply=sock_comm(fm_fd_r, fm_fd_w, "LASTMODIFIED\n");
223	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){
224	<	errf("Server error (%m)");
84	<	return -1;
222	>	if((get_host_addr(hostname, &haddr))!=0){
223	>	log_msg(LOG_CRIT, "Failed to lookup name for %s", hostname);
224	>	return NULL;
225		}
226	<	ihost_state->last_modified=atol(reply);
226	>
227	>	memset(&addr, 0, sizeof(addr));
228	>	addr.sin_family = AF_INET;
229	>	memcpy(&addr.sin_addr, &haddr, sizeof(haddr));
230	>	addr.sin_port = htons(port);
231	>
232	>	log_msg(LOG_DEBUG, "Creating a tcp connection");
233	>	if(connect(sock, (struct sockaddr *)&addr, sizeof(addr)) !=0){
234	>	log_msg(LOG_CRIT, "Failed to connect to hostname %s on port %d", hostname, port);
235	>	return NULL;
236	>	}
237	>
238	>	if((f=fdopen(sock, "r+"))==NULL){
239	>	log_msg(LOG_CRIT, "Failed to connect to open filedescriptor on tcp connection");
240	>	close(sock);
241	>	return NULL;
242	>	}
243	>
244	>	return f;
245	>	}
246	>
247	>	int tcp_comm(FILE *f, char *send, char **response, char *expected){
248	>
249	>	log_msg(LOG_DEBUG, "Sending %s", send);
250	>	fprintf(f, "%s\n", send);
251	>	fflush(f);
252	>	*response=fpgetline(f);
253	>	fseek(f, 0, SEEK_CUR);
254	>
255	>	if(*response!=NULL) log_msg(LOG_DEBUG, "Recieved %s", *response);
256	>
257	>	if( (*response==NULL) || (strcmp(*response, "ERROR")==0) ) return -1;
258
259	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FILELIST\n");
260	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){
261	<	errf("Server error (%m)");
259	>	if(expected==NULL) return 0;
260	>
261	>	if((strcmp(expected, *response))==0) return 0;
262	>
263	>	log_msg(LOG_DEBUG, "Did not get expected response");
264	>	return -1;
265	>	}
266	>
267	>	int tcp_comm_strdup(FILE *f, char *send, char **response, char *expected){
268	>	if((tcp_comm(f, send, response, expected))!=0){
269		return -1;
270		}
271	<	if((ihost_state->files_list=strdup(reply)) == NULL){
272	<	errf("strdup failed (%m)");
273	<	return -1;
271	>
272	>	*response=strdup(*response);
273	>	if (response==NULL) return -1;
274	>
275	>	return 0;
276	>	}
277	>
278	>	int ihost_getconfig(ihost_state_t *ihost_state){
279	>
280	>	FILE *tcp_con;
281	>	char *response;
282	>	char *response_ptr;
283	>
284	>	/* Keep these in case of a failure and so it can keep running on the old config */
285	>	char *file_list=NULL;
286	>	char *last_modified=NULL;
287	>	char *host_fqdn=NULL;
288	>	char *host_ip=NULL;
289	>	int udp_update_time=0;
290	>	char *server_fqdn=NULL;
291	>	int server_udp_port=0;
292	>	time_t config_ttl=0;
293	>
294	>	if((tcp_con=create_tcp_connection(ihost_state->filtermanager_host, ihost_state->filtermanager_port))==NULL){
295	>	goto error;
296		}
297
298	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FQDN\n");
299	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
300	<	errf("Server error (%m)");
301	<	return -1;
298	>	if(ihost_state->file_list!=NULL || ihost_state->last_modified!=NULL){
299	>	if(tcp_con==NULL){
300	>	goto error;
301	>	}
302	>
303	>	if((tcp_comm(tcp_con, "CHECKCONFIG", &response, "OK"))!=0){
304	>	goto error;
305	>	}
306	>
307	>	if((tcp_comm(tcp_con, ihost_state->file_list, &response, "OK"))!=0){
308	>	goto error;
309	>	}
310	>
311	>	if((tcp_comm(tcp_con, ihost_state->last_modified, &response, "OK"))==0){
312	>	if((tcp_comm(tcp_con, "END", &response, "OK"))!=0){
313	>	goto error;
314	>	}
315	>	fclose(tcp_con);
316	>	return 0;
317	>	}else{
318	>	if((strcmp(response, "EXPIRED"))!=0){
319	>	goto error;
320	>	}
321	>	}
322		}
323	<	if((ihost_state->my_fqdn=strdup(reply)) == NULL){
324	<	errf("strdup failed (%m)");
325	<	return -1;
323	>
324	>	/* If we got to here, the config must of expired */
325	>
326	>	if((tcp_comm(tcp_con, "STARTCONFIG", &response, "OK"))!=0){
327	>	goto error;
328		}
329
330	<	reply=sock_comm(fm_fd_r, fm_fd_w, "UDPUpdateTime\n");
331	<	if(reply== NULL){
110	<	errf("Server error (%m)");
111	<	return -1;
330	>	if((tcp_comm_strdup(tcp_con, "LASTMODIFIED", &response, NULL))!=0){
331	>	goto error;
332		}
333	<	if (strncasecmp(reply, "ERROR", 5) != 0){
334	<	ihost_state->udp_update_time=atoi(reply);
333	>	last_modified=response;
334	>
335	>	if((tcp_comm_strdup(tcp_con, "FILELIST", &response, NULL))!=0){
336	>	goto error;
337		}
338	+	file_list=response;
339
340	<	reply=sock_comm(fm_fd_r, fm_fd_w, "TCPUpdateTime\n");
341	<	if(reply== NULL){
119	<	errf("Server error (%m)");
120	<	return -1;
340	>	if((tcp_comm_strdup(tcp_con, "FQDN", &response, NULL))!=0){
341	>	goto error;
342		}
343	<	if (strncasecmp(reply, "ERROR", 5) != 0){
344	<	ihost_state->tcp_update_time=atoi(reply);
343	>	host_fqdn=response;
344	>
345	>	if((tcp_comm_strdup(tcp_con, "IP", &response, NULL))!=0){
346	>	goto error;
347		}
348	+	host_ip=response;
349
350	<	reply=sock_comm(fm_fd_r, fm_fd_w, "ENDCONFIG\n");
351	<	if(reply== NULL){
128	<	errf("Server error (%m)");
129	<	return -1;
350	>	if((tcp_comm(tcp_con, "UDPUpdateTime", &response, NULL))!=0){
351	>	goto error;
352		}
353	+	udp_update_time=atoi(response);
354
355	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FILTER\n");
356	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
134	<	errf("Server error (%m)");
135	<	return -1;
355	>	if((tcp_comm(tcp_con, "ConfigTTL", &response, NULL))!=0){
356	>	goto error;
357		}
358	<	reply_ptr=strchr(reply,';');
359	<	if (reply_ptr==NULL){
360	<	errf("Incorrect data returned");
361	<	return -1;
358	>	config_ttl=atoi(response);
359	>
360	>	if((tcp_comm(tcp_con, "ENDCONFIG", &response, NULL))!=0){
361	>	goto error;
362		}
363	<	*reply_ptr='\0';
364	<	if((ihost_state->server_fqdn=strdup(reply)) == NULL){
365	<	errf("strdup failed (%m)");
366	<	return -1;
363	>
364	>	if((tcp_comm(tcp_con, "FILTER", &response, NULL))!=0){
365	>	goto error;
366	>	}else{
367	>	response_ptr=strchr(response,';');
368	>	if(response_ptr==NULL){
369	>	log_msg(LOG_ERR, "Incorrect data sent by server");
370	>	goto error;
371	>	}
372	>	*response_ptr='\0';
373	>	server_fqdn=strdup(response);
374	>	if(server_fqdn==NULL){
375	>	goto error;
376	>	}
377	>	response_ptr++;
378	>	if(response_ptr==NULL){
379	>	log_msg(LOG_ERR, "Incorrect data sent by server");
380	>	goto error;
381	>	}
382	>
383	>	printf("string : %s\n", response_ptr);
384	>	server_udp_port=atoi(response_ptr);
385	>
386	>	if (server_udp_port==0){
387	>	log_msg(LOG_ERR, "Incorrect data sent by server");
388	>	goto error;
389	>	}
390		}
391	<	reply=++reply_ptr;
392	<	reply_ptr=strchr(reply,';');
393	<	if (reply_ptr==NULL){
150	<	errf("Incorrect data returned 2");
151	<	return -1;
391	>
392	>	if((tcp_comm(tcp_con, "END", &response, "OK"))!=0){
393	>	goto error;
394		}
395	<	*reply_ptr='\0';
396	<	ihost_state->server_udp_port=atoi(reply);
397	<	reply=++reply_ptr;
398	<	ihost_state->server_tcp_port=atoi(reply);
399	<	if ((ihost_state->server_tcp_port==0) || (ihost_state->server_udp_port==0)){
400	<	errf("Incorrect data returned 3 ");
401	<	return -1;
395	>
396	>	fclose(tcp_con);
397	>
398	>	/* We have the data we need, and its all been read correctly */
399	>
400	>	/* Free the old data before pointing them to the new data. m_free copes should
401	>	* this already be NULL */
402	>	if(ihost_state->file_list!=NULL) free(ihost_state->file_list);
403	>	if(ihost_state->last_modified!=NULL) free(ihost_state->last_modified);
404	>	if(ihost_state->host_fqdn!=NULL) free(ihost_state->host_fqdn);
405	>	if(ihost_state->server_fqdn!=NULL) free(ihost_state->server_fqdn);
406	>	if(ihost_state->host_ip!=NULL) free(ihost_state->host_ip);
407	>
408	>	ihost_state->file_list=file_list;
409	>	ihost_state->last_modified=last_modified;
410	>	ihost_state->host_fqdn=host_fqdn;
411	>	ihost_state->host_ip=host_ip;
412	>	ihost_state->server_fqdn=server_fqdn;
413	>	ihost_state->server_udp_port=server_udp_port;
414	>	ihost_state->udp_update_time=udp_update_time;
415	>	ihost_state->config_ttl=config_ttl;
416	>
417	>	log_msg(LOG_DEBUG, "UDP Update time %d", udp_update_time);
418	>	log_msg(LOG_DEBUG, "Configure ttl %d", config_ttl);
419	>
420	>	return 0;
421	>
422	>	error:
423	>
424	>	if(file_list!=NULL) free(file_list);
425	>	if(last_modified!=NULL) free(last_modified);
426	>	if(host_fqdn!=NULL) free(host_fqdn);
427	>	if(server_fqdn!=NULL) free(server_fqdn);
428	>	if(host_ip!=NULL) free(host_ip);
429	>	fclose(tcp_con);
430	>
431	>	return -1;
432	>	}
433	>
434	>	int get_system_stats(int seq_no, ihost_state_t *ihost_state, char *xml, int size){
435	>	char tmp[size];
436	>	cpu_percent_t *cpu_percent;
437	>	mem_stat_t *mem_stats;
438	>	load_stat_t *load_stats;
439	>	user_stat_t *user_stats;
440	>	swap_stat_t *swap_stats;
441	>	general_stat_t *general_stats;
442	>	disk_stat_t *disk_stats;
443	>	diskio_stat_t *diskio_stats;
444	>	process_stat_t *process_stats;
445	>	network_stat_t *network_stats;
446	>	page_stat_t *page_stats;
447	>	int disk_entries=0;
448	>	int diskio_entries=0;
449	>	int network_entries=0;
450	>
451	>	int counter;
452	>	long long x;
453	>	long long y;
454	>
455	>	/* Print start of the packet we want */
456	>	snprintf(xml, size, "<packet seq_no=\"%d\" machine_name=\"%s\" date=\"%ld\" type=\"data\" ip=\"%s\">", \
457	>	seq_no, ihost_state->host_fqdn, time(NULL), ihost_state->host_ip);
458	>
459	>	/* Get cpu stats, check it is correct, then fill in its entry for the xml */
460	>	if((cpu_percent=cpu_percent_usage())==NULL){
461	>	log_msg(LOG_CRIT, "Failed to get cpu statistics");
462	>	}else{
463	>	snprintf(tmp, size, \
464	>	"<cpu><user>%3.2f</user><kernel>%3.2f</kernel><idle>%3.2f</idle><iowait>%3.2f</iowait><swap>%3.2f</swap></cpu>", \
465	>	cpu_percent->user, \
466	>	cpu_percent->kernel, \
467	>	cpu_percent->idle, \
468	>	cpu_percent->iowait, \
469	>	cpu_percent->swap);
470	>
471	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
472		}
473
474	<	reply=sock_comm(fm_fd_r, fm_fd_w, "END\n");
475	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){
476	<	errf("Server error (%m)");
477	<	return -1;
474	>
475	>	/*Get mem stats, and fill in xml */
476	>	if((mem_stats=get_memory_stats())==NULL){
477	>	log_msg(LOG_CRIT, "Failed to get memory statistics");
478	>	}else{
479	>	snprintf(tmp, size, \
480	>	"<memory><total>%lld</total><free>%lld</free><used>%lld</used><cache>%lld</cache></memory>", \
481	>	mem_stats->total, \
482	>	mem_stats->free, \
483	>	mem_stats->used, \
484	>	mem_stats->cache);
485	>
486	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
487		}
488
489	<	if(fclose(fm_fd_r) !=0){
490	<	errf("Failed to close FD (%m)");
491	<	return -1;
489	>
490	>	/* Get load stats */
491	>	if((load_stats=get_load_stats())==NULL){
492	>	log_msg(LOG_CRIT, "Failed to get load statistics");
493	>	}else{
494	>	snprintf(tmp, size, \
495	>	"<load><load1>%.2lf</load1><load5>%.2lf</load5><load15>%.2lf</load15></load>", \
496	>	load_stats->min1, \
497	>	load_stats->min5, \
498	>	load_stats->min15);
499	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
500		}
501	<	if(fclose(fm_fd_w) !=0){
502	<	errf("Failed to close FD (%m)");
503	<	return -1;
501	>
502	>
503	>	/* get user stats */
504	>
505	>	if((user_stats=get_user_stats())==NULL){
506	>	log_msg(LOG_CRIT, "Failed to get user statistics");
507	>	}else{
508	>
509	>	snprintf(tmp, size, \
510	>	"<users><list>%s</list><count>%d</count></users>", \
511	>	user_stats->name_list, \
512	>	user_stats->num_entries);
513	>
514	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
515		}
516
517	+
518	+	/* swap stats */
519	+	if((swap_stats=get_swap_stats())==NULL){
520	+	log_msg(LOG_CRIT, "Failed to get swap statistics");
521	+	}else{
522	+	snprintf(tmp, size, \
523	+	"<swap><total>%lld</total><used>%lld</used><free>%lld</free></swap>",\
524	+	swap_stats->total, \
525	+	swap_stats->used, \
526	+	swap_stats->free);
527	+
528	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
529	+	}
530	+
531	+
532	+	/* general stats */
533	+
534	+	if((general_stats=get_general_stats())==NULL){
535	+	log_msg(LOG_CRIT, "Failed to get general statistics");
536	+	}else{
537	+	snprintf(tmp, size, \
538	+	"<os><name>%s</name><release>%s</release><version>%s</version><sysname>%s</sysname><platform>%s</platform><uptime>%ld</uptime></os>", \
539	+	general_stats->os_name, \
540	+	general_stats->os_release, \
541	+	general_stats->os_version, \
542	+	general_stats->hostname, \
543	+	general_stats->platform, \
544	+	(long)general_stats->uptime);
545	+
546	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
547	+
548	+	}
549	+
550	+
551	+	/* process stats */
552	+	if((process_stats=get_process_stats())==NULL){
553	+	log_msg(LOG_CRIT, "Failed to get general statistics");
554	+	}else{
555	+	snprintf(tmp, size, \
556	+	"<processes><sleeping>%d</sleeping><cpu>%d</cpu><zombie>%d</zombie><stopped>%d</stopped><total>%d</total></processes>",\
557	+	process_stats->sleeping, \
558	+	process_stats->running, \
559	+	process_stats->zombie, \
560	+	process_stats->stopped, \
561	+	process_stats->total);
562	+
563	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
564	+
565	+	}
566	+
567	+
568	+	/* Get paging stats */
569	+	if((page_stats=get_page_stats_diff())==NULL){
570	+	log_msg(LOG_CRIT, "Failed to get paging statistics");
571	+	}else{
572	+	if(page_stats->systime!=0){
573	+	x=page_stats->pages_pagein / page_stats->systime;
574	+	y=page_stats->pages_pageout / page_stats->systime;
575	+	}else{
576	+	x=page_stats->pages_pagein;
577	+	y=page_stats->pages_pageout;
578	+	}
579	+	snprintf(tmp, size, \
580	+	"<pages><swapins>%lld</swapins><swapouts>%lld</swapouts></pages>", \
581	+	x, \
582	+	y);
583	+
584	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
585	+	}
586	+
587	+
588	+	/* get diskio stats */
589	+
590	+	if((diskio_stats=get_diskio_stats_diff(&diskio_entries))==NULL){
591	+	log_msg(LOG_CRIT, "Failed to get diskio statistics");
592	+	}else{
593	+	strlcat(xml, "<diskio>", size);
594	+	for(counter=0;counter<diskio_entries;counter++){
595	+
596	+	if(diskio_stats->systime!=0){
597	+	x=diskio_stats->read_bytes / diskio_stats->systime;
598	+	y=diskio_stats->write_bytes / diskio_stats->systime;
599	+	}else{
600	+	x=diskio_stats->read_bytes;
601	+	y=diskio_stats->write_bytes;
602	+	}
603	+
604	+	snprintf(tmp, size, \
605	+	"<p%d name=\"%s\" rbytes=\"%lld\" wbytes=\"%lld\"></p%d>", \
606	+	counter, \
607	+	diskio_stats->disk_name, \
608	+	x, \
609	+	y, \
610	+	counter);
611	+
612	+	strlcat(xml, tmp, size);
613	+	diskio_stats++;
614	+	}
615	+
616	+	if(strlcat(xml, "</diskio>", size) >= size) goto too_big_error;
617	+
618	+	}
619	+
620	+
621	+	/* get networks stats */
622	+
623	+	if((network_stats=get_network_stats_diff(&network_entries))==NULL){
624	+	log_msg(LOG_CRIT, "Failed to get network statistics");
625	+	}else{
626	+	strlcat(xml, "<net>", size);
627	+	for(counter=0;counter<network_entries;counter++){
628	+	if(network_stats->systime!=0){
629	+	x=network_stats->rx / network_stats->systime;
630	+	y=network_stats->tx / network_stats->systime;
631	+	}else{
632	+	x=network_stats->rx;
633	+	y=network_stats->tx;
634	+	}
635	+
636	+	snprintf(tmp, size, \
637	+	"<p%d name=\"%s\" rx=\"%lld\" tx=\"%lld\"></p%d>", \
638	+	counter, \
639	+	network_stats->interface_name, \
640	+	x, \
641	+	y, \
642	+	counter);
643	+
644	+	strlcat(xml, tmp, size);
645	+	network_stats++;
646	+	}
647	+
648	+	if(strlcat(xml, "</net>", size) >= size) goto too_big_error;
649	+
650	+	}
651	+
652	+
653	+	/* get disk stats */
654	+
655	+	if((disk_stats=get_disk_stats(&disk_entries))==NULL){
656	+	log_msg(LOG_CRIT, "Failed to get disk statistics");
657	+	}else{
658	+	strlcat(xml, "<disk>", size);
659	+	for(counter=0;counter<disk_entries;counter++){
660	+	snprintf(tmp, size, \
661	+	"<p%d name=\"%s\" mount=\"%s\" fstype=\"%s\" total=\"%lld\" used=\"%lld\" avail=\"%lld\" totalinodes=\"%lld\" usedinodes=\"%lld\" freeinodes=\"%lld\"></p%d>", \
662	+	counter, \
663	+	disk_stats->device_name, \
664	+	disk_stats->mnt_point, \
665	+	disk_stats->fs_type, \
666	+	disk_stats->size, \
667	+	disk_stats->used, \
668	+	disk_stats->avail, \
669	+	disk_stats->total_inodes, \
670	+	disk_stats->used_inodes, \
671	+	disk_stats->free_inodes, \
672	+	counter);
673	+
674	+	strlcat(xml, tmp, size);
675	+
676	+	disk_stats++;
677	+	}
678	+
679	+	if(strlcat(xml, "</disk>", size) >= size) goto too_big_error;
680	+
681	+	}
682	+
683	+
684	+	if(strlcat(xml, "</packet>", size) >= size) goto too_big_error;
685	+
686	+	/*If we got to here, it should of all been filled in nicely now */
687		return 0;
688
689	+	too_big_error:
690	+	log_msg(LOG_ERR, "UDP Packet is too large. Throwing away the packet");
691	+	return -1;
692		}
693
694	<	int main(){
694	>
695	>
696	>	void usage(char *progname){
697	>	fprintf(stderr, "Usage %s [options] server port\n", progname);
698	>	fprintf(stderr, "Options\n");
699	>	fprintf(stderr, "  -v           Verbose mode,-vv would make even more verbose\n");
700	>	fprintf(stderr, "  -f           Foreground mode, print errors to stderr\n");
701	>	fprintf(stderr, "  -V           Print version number\n");
702	>	fprintf(stderr, "  -h           Prints this help page\n");
703	>	exit(1);
704	>	}
705	>
706	>	int main(int argc, char **argv){
707	>
708		ihost_state_t ihost_state;
709	+	udp_sockinfo_t udp_sockinfo;
710	+
711	+	int cmdopt;
712	+	extern int optind;
713	+	pid_t pid;
714	+	FILE *f;
715	+	int packet_num=0;
716	+	int len;
717
718	<	ihost_state.fm_host=strdup("kernow.ukc.ac.uk");
185	<	ihost_state.fm_port=4567;
718	>	char packet[MAX_UDP_PACKET_SIZE];
719
720	<	if(ihost_configure(&ihost_state)!=0){
721	<	errf("configure failed");
720	>	time_t cur_time, sleep_delay, udp_time=0, config_time=0;
721	>
722	>	/* Set default settings */
723	>	ihost_config.verbose=1;
724	>	ihost_config.daemon=1;
725	>	/* Set all errors to go down stderr until told otherwise */
726	>	ihost_config.log=stderr;
727	>
728	>	/* Blank ihost_state to default settings */
729	>	ihost_state.filtermanager_host=NULL;
730	>	ihost_state.host_fqdn=NULL;
731	>	ihost_state.host_ip=NULL;
732	>	ihost_state.server_fqdn=NULL;
733	>	ihost_state.file_list=NULL;
734	>	ihost_state.last_modified=NULL;
735	>
736	>	while((cmdopt=getopt(argc, argv, "vfhV")) != -1){
737	>	switch(cmdopt){
738	>	case 'v':
739	>	ihost_config.verbose++;
740	>	break;
741	>
742	>	case 'f':
743	>	/* Force syslog logging since stderr will be closed in this case */
744	>	ihost_config.daemon=0;
745	>	break;
746	>
747	>	case 'h':
748	>	usage(argv[0]);
749	>	break;
750	>
751	>	case 'V':
752	>	fprintf(stderr, "%s version %s\n", argv[0], VERSION);
753	>	break;
754	>
755	>	default:
756	>	usage(argv[0]);
757	>	exit(1);
758	>	}
759	>	}
760	>
761	>	if(argc!=optind+2){
762	>	usage(argv[0]);
763	>	exit(1);
764	>	}
765	>
766	>	ihost_state.filtermanager_host=strdup(argv[optind]);
767	>	ihost_state.filtermanager_port=atoi(argv[optind+1]);
768	>
769	>	if(gethostbyname(ihost_state.filtermanager_host)==NULL){
770	>	log_msg(LOG_CRIT, "Failed to lookup hostname. Please check settings");
771	>	exit(1);
772		}
773	+	if(ihost_state.filtermanager_port==0){
774	+	log_msg(LOG_ERR, "Invalid port number");
775	+	exit(1);
776	+	}
777
778	<	return 0;
779	<	}
778	>	if(ihost_config.daemon){
779	>	pid=fork();
780	>	if(pid==-1){
781	>	log_msg(LOG_CRIT, "Failed to background exiting");
782	>	exit(1);
783	>	}else if(pid!=0){
784	>	/* Parent process */
785	>	return 0;
786	>	}
787	>	/* We should now be in the background*/
788	>	if(setsid()==-1){
789	>	log_msg(LOG_CRIT, "setsid failed");
790	>	exit(1);
791	>	}
792	>
793	>	if((ihost_config.log=fopen(LOG_FILE, "a"))==NULL){
794	>	ihost_config.log=stderr;
795	>	log_msg(LOG_CRIT, "Failed to open Logfiles %s for writing", LOG_FILE);
796	>	exit(1);
797	>	}
798
799	+	fclose(stdin);
800	+	fclose(stdout);
801	+	fclose(stderr);
802	+
803	+	}
804	+
805	+	log_msg(LOG_INFO, "Starting ihost");
806	+
807	+	log_msg(LOG_DEBUG,"Writing PID FILE");
808	+
809	+	pid=getpid();
810	+
811	+	if((f=fopen(PID_FILE,"w")) == NULL){
812	+	log_msg(LOG_CRIT, "Failed to write PID file");
813	+	}else{
814	+	if((fprintf(f,"%d",(int)pid)) <= 0 ){
815	+	log_msg(LOG_CRIT, "Failed to write PID file");
816	+	}
817	+	if((fclose(f))!=0){
818	+	log_msg(LOG_CRIT, "failed to close PID file");
819	+	}
820	+	}
821	+
822	+	/* Get the initial config from the filter manager. Should this fail,
823	+	* wait, and then try again. */
824	+
825	+	get_diskio_stats_diff(&packet_num);
826	+	packet_num=0;
827	+
828	+	while(ihost_getconfig(&ihost_state)!=0){
829	+	log_msg(LOG_ERR, "Failed to get ihost config");
830	+	sleep(10);
831	+	}
832	+
833	+	printf("%s\n%d\n", ihost_state.server_fqdn, ihost_state.server_udp_port);
834	+	while((create_udp_sockinfo(&udp_sockinfo, ihost_state.server_fqdn, ihost_state.server_udp_port))!=0){
835	+	log_msg(LOG_ERR, "Failed to create udp socket");
836	+	sleep(10);
837	+	}
838	+
839	+	config_time=time(NULL)+ihost_state.config_ttl;
840	+
841	+	/* Now have config.. collect data and send as often as required */
842	+	for(;;){
843	+	cur_time=time(NULL);
844	+
845	+	if(cur_time>=udp_time){
846	+	if((get_system_stats(packet_num++, &ihost_state, packet, MAX_UDP_PACKET_SIZE))!=0){
847	+	log_msg(LOG_ERR, "Failed to get system stats");
848	+	}
849	+
850	+	len=strlen(packet);
851	+	log_msg(LOG_DEBUG, "Packet size: %d\nPacket: %s\n", len, packet);
852	+
853	+	if((sendto(udp_sockinfo.sock, packet, len, 0, (struct sockaddr *) &udp_sockinfo.addr, sizeof(udp_sockinfo.addr)))!=len){
854	+	log_msg(LOG_CRIT, "Failed to send packet");
855	+	}
856	+	udp_time=cur_time+ihost_state.udp_update_time;
857	+	log_msg(LOG_DEBUG, "Next packet should be sent on %d", udp_time);
858	+	}
859	+
860	+	if(cur_time>=config_time){
861	+	if(ihost_getconfig(&ihost_state)!=0){
862	+	/* If we can't get the config, try again 5 minutes time */
863	+	log_msg(LOG_ERR, "Failed to get config, try again 5 minutes time");
864	+	config_time=time(NULL)+300;
865	+	}else{
866	+	close(udp_sockinfo.sock);
867	+
868	+	while((create_udp_sockinfo(&udp_sockinfo, ihost_state.server_fqdn, ihost_state.server_udp_port))!=0){
869	+	log_msg(LOG_CRIT, "Failed to create udp socket");
870	+	sleep(10);
871	+	}
872	+
873	+	config_time=time(NULL)+ihost_state.config_ttl;
874	+
875	+	log_msg(LOG_DEBUG, "Config expires on %d\n", ihost_state.config_ttl);
876	+	}
877	+	}
878	+
879	+	sleep_delay=udp_time-time(NULL);
880	+	log_msg(LOG_DEBUG, "Sleeping for %d", sleep_delay);
881	+	if(sleep_delay>0) sleep(sleep_delay);
882	+	}
883	+
884	+	return(0);
885	+	}

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