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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 1.52 by tdb, Mon May 31 13:52:27 2004 UTC

#	Line 1 | Line 1
1	+	/*
2	+	* i-scream central monitoring system
3	+	* http://www.i-scream.org
4	+	* Copyright (C) 2000-2004 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	+	#include <time.h>
36	+
37		#include <ukcprog.h>
38	<	#include <netdb.h>
9	<	#include <strings.h>
38	>	#include <statgrab.h>
39
40	+	#define LOG_CRIT 0
41	+	#define LOG_ERR 1
42	+	#define LOG_INFO 2
43	+	#define LOG_DEBUG 3
44	+
45		typedef struct{
46	<	int fm_port;
47	<	char *fm_host;
48	<
49	<	char *my_fqdn;
46	>	int filtermanager_port;
47	>	char *filtermanager_host;
48	>
49	>	char *host_ip;
50	>	char *host_fqdn;
51	>	int preset_fqdn;
52	>	int preset_ip;
53	>
54		char *server_fqdn;
55		int server_udp_port;
56	<	int server_tcp_port;
57	<	long last_modified;
58	<	char *files_list;
59	<	char *key;
56	>
57	>	/* Weird stuff iscream wants sent to it */
58	>	char *last_modified;
59	>	char *file_list;
60	>
61		int udp_update_time;
23	–	int tcp_update_time;
62
63	+	time_t config_ttl;
64	+
65		}ihost_state_t;
66
67	<	char* sock_comm(FILE *f_r, FILE *f_w, char* sendString){
68	<	char *reply;
69	<	fprintf(f_w, "%s", sendString);
30	<	fflush(f_w);
31	<	reply=fpgetline(f_r);
32	<	/* Returns pointer to static buffer */
33	<	return reply;
34	<	}
67	>	typedef struct{
68	>	int verbose;
69	>	int daemon;
70
71	<	int ihost_configure(ihost_state_t *ihost_state){
71	>	FILE *log;
72	>	}ihost_config_t;
73	>
74	>	typedef struct{
75		struct sockaddr_in addr;
76	<	struct in_addr haddr;
77	<	int sd;
40	<	FILE *fm_fd_r, *fm_fd_w;
41	<	char *reply;
42	<	char *reply_ptr;
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	<	memset((char *)&addr, 0, sizeof addr);
149	<	addr.sin_family = AF_INET;
56	<	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
57	<	addr.sin_port =  htons(ihost_state->fm_port);
148	>	return(dlen + (s - src));       /* count does not include NUL */
149	>	}
150
151	<	if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
152	<	errf("Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
153	<	return -1;
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	<	/* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */
174	<	if ((fm_fd_r=fdopen(sd,"r")) == NULL){
175	<	errf("Failed to open stream (%m)");
176	<	return -1;
173	>	int create_udp_sockinfo(udp_sockinfo_t *udp_sockinfo, char *hostname, int port){
174	>
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_w=fdopen(dup(sd),"w")) == 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	<	reply=sock_comm(fm_fd_r, fm_fd_w, "STARTCONFIG\n");
189	<	if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
190	<	errf("Server error");
191	<	return -1;
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	<	reply=sock_comm(fm_fd_r, fm_fd_w, "LASTMODIFIED\n");
210	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){
211	<	errf("Server error (%m)");
212	<	return -1;
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	<	ihost_state->last_modified=atol(reply);
215	<
216	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FILELIST\n");
217	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){
218	<	errf("Server error (%m)");
219	<	return -1;
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	<	if((ihost_state->files_list=strdup(reply)) == NULL){
227	<	errf("strdup failed (%m)");
228	<	return -1;
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	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FQDN\n");
234	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
235	<	errf("Server error (%m)");
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, "Received %s", *response);
245	>
246	>	if( (*response==NULL) || (strcmp(*response, "ERROR")==0) ) return -1;
247	>
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	<	if((ihost_state->my_fqdn=strdup(reply)) == NULL){
261	<	errf("strdup failed (%m)");
260	>
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
287	<	reply=sock_comm(fm_fd_r, fm_fd_w, "UDPUpdateTime\n");
288	<	if(reply== NULL){
289	<	errf("Server error (%m)");
290	<	return -1;
287	>	if(ihost_state->file_list!=NULL || ihost_state->last_modified!=NULL){
288	>	if(tcp_con==NULL){
289	>	goto error;
290	>	}
291	>
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 (strncasecmp(reply, "ERROR", 5) != 0){
313	<	ihost_state->udp_update_time=atoi(reply);
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_r, fm_fd_w, "TCPUpdateTime\n");
320	<	if(reply== NULL){
119	<	errf("Server error (%m)");
120	<	return -1;
319	>	if((tcp_comm_strdup(tcp_con, "LASTMODIFIED", &response, NULL))!=0){
320	>	goto error;
321		}
322	<	if (strncasecmp(reply, "ERROR", 5) != 0){
323	<	ihost_state->tcp_update_time=atoi(reply);
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_r, fm_fd_w, "ENDCONFIG\n");
330	<	if(reply== NULL){
128	<	errf("Server error (%m)");
129	<	return -1;
329	>	if((tcp_comm_strdup(tcp_con, "FQDN", &response, NULL))!=0){
330	>	goto error;
331		}
332	+	host_fqdn=response;
333
334	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FILTER\n");
335	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
134	<	errf("Server error (%m)");
135	<	return -1;
334	>	if((tcp_comm_strdup(tcp_con, "IP", &response, NULL))!=0){
335	>	goto error;
336		}
337	<	reply_ptr=strchr(reply,';');
338	<	if (reply_ptr==NULL){
339	<	errf("Incorrect data returned");
340	<	return -1;
337	>	host_ip=response;
338	>
339	>	if((tcp_comm(tcp_con, "UDPUpdateTime", &response, NULL))!=0){
340	>	goto error;
341		}
342	<	*reply_ptr='\0';
343	<	if((ihost_state->server_fqdn=strdup(reply)) == NULL){
344	<	errf("strdup failed (%m)");
345	<	return -1;
342	>	udp_update_time=atoi(response);
343	>
344	>	if((tcp_comm(tcp_con, "ConfigTTL", &response, NULL))!=0){
345	>	goto error;
346		}
347	<	reply=++reply_ptr;
348	<	reply_ptr=strchr(reply,';');
349	<	if (reply_ptr==NULL){
350	<	errf("Incorrect data returned 2");
151	<	return -1;
347	>	config_ttl=atoi(response);
348	>
349	>	if((tcp_comm(tcp_con, "ENDCONFIG", &response, NULL))!=0){
350	>	goto error;
351		}
352	<	*reply_ptr='\0';
353	<	ihost_state->server_udp_port=atoi(reply);
354	<	reply=++reply_ptr;
355	<	ihost_state->server_tcp_port=atoi(reply);
356	<	if ((ihost_state->server_tcp_port==0) || (ihost_state->server_udp_port==0)){
357	<	errf("Incorrect data returned 3 ");
358	<	return -1;
352	>
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	<	reply=sock_comm(fm_fd_r, fm_fd_w, "END\n");
381	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){
164	<	errf("Server error (%m)");
165	<	return -1;
380	>	if((tcp_comm(tcp_con, "END", &response, "OK"))!=0){
381	>	goto error;
382		}
383
384	<	if(fclose(fm_fd_r) !=0){
385	<	errf("Failed to close FD (%m)");
386	<	return -1;
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	<	if(fclose(fm_fd_w) !=0){
401	<	errf("Failed to close FD (%m)");
402	<	return -1;
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(){
434	<	ihost_state_t ihost_state;
433	>	int get_system_stats(int seq_no, ihost_state_t *ihost_state, char *xml, int size){
434	>	char tmp[size];
435	>	sg_cpu_percents *cpu_percent;
436	>	sg_mem_stats *mem_stats;
437	>	sg_load_stats *load_stats;
438	>	sg_user_stats *user_stats;
439	>	sg_swap_stats *swap_stats;
440	>	sg_host_info *general_stats;
441	>	sg_fs_stats *disk_stats;
442	>	sg_disk_io_stats *diskio_stats;
443	>	sg_process_count *process_stats;
444	>	sg_network_io_stats *network_stats;
445	>	sg_page_stats *page_stats;
446	>	int disk_entries=0;
447	>	int diskio_entries=0;
448	>	int network_entries=0;
449
450	<	ihost_state.fm_host=strdup("kernow.ukc.ac.uk");
451	<	ihost_state.fm_port=4567;
450	>	int counter;
451	>	long long x;
452	>	long long y;
453
454	<	if(ihost_configure(&ihost_state)!=0){
455	<	errf("configure failed");
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, (long) 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=sg_get_cpu_percents())==NULL){
460	>	log_msg(LOG_CRIT, "Failed to get cpu statistics: %s (%s)",
461	>	sg_str_error(sg_get_error()), sg_get_error_arg());
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	+
475	+	/*Get mem stats, and fill in xml */
476	+	if((mem_stats=sg_get_mem_stats())==NULL){
477	+	log_msg(LOG_CRIT, "Failed to get memory statistics: %s (%s)",
478	+	sg_str_error(sg_get_error()), sg_get_error_arg());
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=sg_get_load_stats())==NULL){
493	+	log_msg(LOG_CRIT, "Failed to get load statistics: %s (%s)",
494	+	sg_str_error(sg_get_error()), sg_get_error_arg());
495	+	}else{
496	+	snprintf(tmp, size, \
497	+	"<load><load1>%.2lf</load1><load5>%.2lf</load5><load15>%.2lf</load15></load>", \
498	+	load_stats->min1, \
499	+	load_stats->min5, \
500	+	load_stats->min15);
501	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
502	+	}
503	+
504	+
505	+	/* get user stats */
506	+
507	+	if((user_stats=sg_get_user_stats())==NULL){
508	+	log_msg(LOG_CRIT, "Failed to get user statistics: %s (%s)",
509	+	sg_str_error(sg_get_error()), sg_get_error_arg());
510	+	}else{
511	+
512	+	snprintf(tmp, size, \
513	+	"<users><list>%s</list><count>%d</count></users>", \
514	+	user_stats->name_list, \
515	+	user_stats->num_entries);
516	+
517	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
518	+	}
519	+
520	+
521	+	/* swap stats */
522	+	if((swap_stats=sg_get_swap_stats())==NULL){
523	+	log_msg(LOG_CRIT, "Failed to get swap statistics: %s (%s)",
524	+	sg_str_error(sg_get_error()), sg_get_error_arg());
525	+	}else{
526	+	snprintf(tmp, size, \
527	+	"<swap><total>%lld</total><used>%lld</used><free>%lld</free></swap>",\
528	+	swap_stats->total, \
529	+	swap_stats->used, \
530	+	swap_stats->free);
531	+
532	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
533	+	}
534	+
535	+
536	+	/* general stats */
537	+
538	+	if((general_stats=sg_get_host_info())==NULL){
539	+	log_msg(LOG_CRIT, "Failed to get host info statistics: %s (%s)",
540	+	sg_str_error(sg_get_error()), sg_get_error_arg());
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=sg_get_process_count())==NULL){
558	+	log_msg(LOG_CRIT, "Failed to get process statistics: %s (%s)",
559	+	sg_str_error(sg_get_error()), sg_get_error_arg());
560	+	}else{
561	+	snprintf(tmp, size, \
562	+	"<processes><sleeping>%d</sleeping><cpu>%d</cpu><zombie>%d</zombie><stopped>%d</stopped><total>%d</total></processes>",\
563	+	process_stats->sleeping, \
564	+	process_stats->running, \
565	+	process_stats->zombie, \
566	+	process_stats->stopped, \
567	+	process_stats->total);
568	+
569	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
570	+
571	+	}
572	+
573	+
574	+	/* Get paging stats */
575	+	if((page_stats=sg_get_page_stats_diff())==NULL){
576	+	log_msg(LOG_CRIT, "Failed to get paging statistics: %s (%s)",
577	+	sg_str_error(sg_get_error()), sg_get_error_arg());
578	+	}else{
579	+	if(page_stats->systime!=0){
580	+	x=page_stats->pages_pagein / page_stats->systime;
581	+	y=page_stats->pages_pageout / page_stats->systime;
582	+	}else{
583	+	x=page_stats->pages_pagein;
584	+	y=page_stats->pages_pageout;
585	+	}
586	+	snprintf(tmp, size, \
587	+	"<pages><pageins>%lld</pageins><pageouts>%lld</pageouts></pages>", \
588	+	x, \
589	+	y);
590	+
591	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
592	+	}
593	+
594	+
595	+	/* get diskio stats */
596	+
597	+	if((diskio_stats=sg_get_disk_io_stats_diff(&diskio_entries))==NULL){
598	+	log_msg(LOG_CRIT, "Failed to get disk io statistics: %s (%s)",
599	+	sg_str_error(sg_get_error()), sg_get_error_arg());
600	+	}else{
601	+	strlcat(xml, "<diskio>", size);
602	+	for(counter=0;counter<diskio_entries;counter++){
603	+
604	+	if(diskio_stats->systime!=0){
605	+	x=diskio_stats->read_bytes / diskio_stats->systime;
606	+	y=diskio_stats->write_bytes / diskio_stats->systime;
607	+	}else{
608	+	x=diskio_stats->read_bytes;
609	+	y=diskio_stats->write_bytes;
610	+	}
611	+
612	+	snprintf(tmp, size, \
613	+	"<p%d name=\"%s\" rbytes=\"%lld\" wbytes=\"%lld\"></p%d>", \
614	+	counter, \
615	+	diskio_stats->disk_name, \
616	+	x, \
617	+	y, \
618	+	counter);
619	+
620	+	strlcat(xml, tmp, size);
621	+	diskio_stats++;
622	+	}
623	+
624	+	if(strlcat(xml, "</diskio>", size) >= size) goto too_big_error;
625	+
626	+	}
627	+
628	+
629	+	/* get networks stats */
630	+
631	+	if((network_stats=sg_get_network_io_stats_diff(&network_entries))==NULL){
632	+	log_msg(LOG_CRIT, "Failed to get network io statistics: %s (%s)",
633	+	sg_str_error(sg_get_error()), sg_get_error_arg());
634	+	}else{
635	+	strlcat(xml, "<net>", size);
636	+	for(counter=0;counter<network_entries;counter++){
637	+	if(network_stats->systime!=0){
638	+	x=network_stats->rx / network_stats->systime;
639	+	y=network_stats->tx / network_stats->systime;
640	+	}else{
641	+	x=network_stats->rx;
642	+	y=network_stats->tx;
643	+	}
644	+
645	+	snprintf(tmp, size, \
646	+	"<p%d name=\"%s\" rx=\"%lld\" tx=\"%lld\"></p%d>", \
647	+	counter, \
648	+	network_stats->interface_name, \
649	+	x, \
650	+	y, \
651	+	counter);
652	+
653	+	strlcat(xml, tmp, size);
654	+	network_stats++;
655	+	}
656	+
657	+	if(strlcat(xml, "</net>", size) >= size) goto too_big_error;
658	+
659	+	}
660	+
661	+
662	+	/* get disk stats */
663	+
664	+	if((disk_stats=sg_get_fs_stats(&disk_entries))==NULL){
665	+	log_msg(LOG_CRIT, "Failed to get fs statistics: %s (%s)",
666	+	sg_str_error(sg_get_error()), sg_get_error_arg());
667	+	}else{
668	+	strlcat(xml, "<disk>", size);
669	+	for(counter=0;counter<disk_entries;counter++){
670	+	snprintf(tmp, size, \
671	+	"<p%d name=\"%s\" mount=\"%s\" fstype=\"%s\" total=\"%lld\" used=\"%lld\" avail=\"%lld\" totalinodes=\"%lld\" usedinodes=\"%lld\" freeinodes=\"%lld\"></p%d>", \
672	+	counter, \
673	+	disk_stats->device_name, \
674	+	disk_stats->mnt_point, \
675	+	disk_stats->fs_type, \
676	+	disk_stats->size, \
677	+	disk_stats->used, \
678	+	disk_stats->avail, \
679	+	disk_stats->total_inodes, \
680	+	disk_stats->used_inodes, \
681	+	disk_stats->free_inodes, \
682	+	counter);
683	+
684	+	strlcat(xml, tmp, size);
685	+
686	+	disk_stats++;
687	+	}
688	+
689	+	if(strlcat(xml, "</disk>", size) >= size) goto too_big_error;
690	+
691	+	}
692	+
693	+
694	+	if(strlcat(xml, "</packet>", size) >= size) goto too_big_error;
695	+
696	+	/*If we got to here, it should of all been filled in nicely now */
697		return 0;
698	+
699	+	too_big_error:
700	+	log_msg(LOG_ERR, "UDP Packet is too large. Throwing away the packet");
701	+	return -1;
702		}
703
704	+
705	+
706	+	void usage(char *progname){
707	+	fprintf(stderr, "Usage %s [-v[v]] [-f] [-n name] [-i ip] [-s server] [-p port] [-V] [-h]\n\n", progname);
708	+	fprintf(stderr, "  -v    Verbose mode, -vv would make even more verbose\n");
709	+	fprintf(stderr, "  -f    Foreground mode, print errors to stderr\n");
710	+	fprintf(stderr, "  -n    Set the machine name to be reported as\n");
711	+	fprintf(stderr, "  -i    Set the IP to be reported as\n");
712	+	fprintf(stderr, "  -s    Specifies the i-scream server to connect to\n");
713	+	fprintf(stderr, "         default: %s\n", DEF_SERVER_NAME);
714	+	fprintf(stderr, "  -p    Specifies the i-scream server port\n");
715	+	fprintf(stderr, "         default: %d\n", DEF_SERVER_PORT);
716	+	fprintf(stderr, "  -V    Print version number\n");
717	+	fprintf(stderr, "  -h    Prints this help page\n");
718	+	fprintf(stderr, "\nReport bugs to <%s>.\n", PACKAGE_BUGREPORT);
719	+	exit(1);
720	+	}
721	+
722	+	int main(int argc, char **argv){
723	+
724	+	ihost_state_t ihost_state;
725	+	udp_sockinfo_t udp_sockinfo;
726	+
727	+	int cmdopt;
728	+	extern int optind;
729	+	pid_t pid;
730	+	FILE *f;
731	+	int packet_num=0;
732	+	int len;
733	+
734	+	char packet[MAX_UDP_PACKET_SIZE];
735	+
736	+	time_t cur_time, sleep_delay, udp_time=0, config_time=0;
737	+
738	+	/* Set default settings */
739	+	ihost_config.verbose=1;
740	+	ihost_config.daemon=1;
741	+	/* Set all errors to go down stderr until told otherwise */
742	+	ihost_config.log=stderr;
743	+
744	+	/* Blank ihost_state to default settings */
745	+	ihost_state.filtermanager_host=DEF_SERVER_NAME;
746	+	ihost_state.filtermanager_port=DEF_SERVER_PORT;
747	+	ihost_state.host_fqdn=NULL;
748	+	ihost_state.host_ip=NULL;
749	+	ihost_state.preset_fqdn = 0;
750	+	ihost_state.preset_ip = 0;
751	+	ihost_state.server_fqdn=NULL;
752	+	ihost_state.file_list=NULL;
753	+	ihost_state.last_modified=NULL;
754	+
755	+	while((cmdopt=getopt(argc, argv, "vfVn:i:s:p:h")) != -1){
756	+	switch(cmdopt){
757	+	case 'v':
758	+	ihost_config.verbose++;
759	+	break;
760	+
761	+	case 'f':
762	+	/* Force syslog logging since stderr will be closed in this case */
763	+	ihost_config.daemon=0;
764	+	break;
765	+
766	+	case 'V':
767	+	fprintf(stderr, "%s version %s\n", argv[0], VERSION);
768	+	break;
769	+	case 'n':
770	+	ihost_state.preset_fqdn = 1;
771	+	ihost_state.host_fqdn = strdup(optarg);
772	+	if(ihost_state.host_fqdn == NULL){
773	+	fprintf(stderr, "Missing hostname\n");
774	+	usage(argv[0]);
775	+	}
776	+	break;
777	+	case 'i':
778	+	/* Hmm.. Someone could set any string to be the IP, and it will let it */
779	+	ihost_state.preset_ip = 1;
780	+	ihost_state.host_ip = strdup(optarg);
781	+	if(ihost_state.host_ip == NULL){
782	+	fprintf(stderr, "Missing ip\n");
783	+	usage(argv[0]);
784	+	}
785	+	break;
786	+
787	+	case 's':
788	+	ihost_state.filtermanager_host=strdup(optarg);
789	+	break;
790	+
791	+	case 'p':
792	+	ihost_state.filtermanager_port=atoi(optarg);
793	+	break;
794	+
795	+	case 'h':
796	+	default:
797	+	usage(argv[0]);
798	+	exit(1);
799	+	}
800	+	}
801	+
802	+	if(gethostbyname(ihost_state.filtermanager_host)==NULL){
803	+	log_msg(LOG_CRIT, "Failed to lookup hostname. Please check settings");
804	+	exit(1);
805	+	}
806	+	if(ihost_state.filtermanager_port==0){
807	+	log_msg(LOG_ERR, "Invalid port number");
808	+	exit(1);
809	+	}
810	+
811	+	if(ihost_config.daemon){
812	+	pid=fork();
813	+	if(pid==-1){
814	+	log_msg(LOG_CRIT, "Failed to background exiting");
815	+	exit(1);
816	+	}else if(pid!=0){
817	+	/* Parent process */
818	+	return 0;
819	+	}
820	+	/* We should now be in the background*/
821	+	if(setsid()==-1){
822	+	log_msg(LOG_CRIT, "setsid failed");
823	+	exit(1);
824	+	}
825	+
826	+	if((ihost_config.log=fopen(LOG_FILE, "a"))==NULL){
827	+	ihost_config.log=stderr;
828	+	log_msg(LOG_CRIT, "Failed to open Logfiles %s for writing", LOG_FILE);
829	+	exit(1);
830	+	}
831	+
832	+	fclose(stdin);
833	+	fclose(stdout);
834	+	fclose(stderr);
835	+
836	+	}
837	+
838	+	log_msg(LOG_INFO, "Starting ihost...");
839	+
840	+	log_msg(LOG_DEBUG, "Running sg_init()");
841	+	if(sg_init()){
842	+	log_msg(LOG_CRIT, "sg_init failed: %s (%s)",
843	+	sg_str_error(sg_get_error()), sg_get_error_arg());
844	+	exit(1);
845	+	}
846	+
847	+	log_msg(LOG_DEBUG,"Writing PID FILE");
848	+
849	+	pid=getpid();
850	+
851	+	if((f=fopen(PID_FILE,"w")) == NULL){
852	+	log_msg(LOG_CRIT, "Failed to write PID file");
853	+	}else{
854	+	if((fprintf(f,"%d",(int)pid)) <= 0 ){
855	+	log_msg(LOG_CRIT, "Failed to write PID file");
856	+	}
857	+	if((fclose(f))!=0){
858	+	log_msg(LOG_CRIT, "failed to close PID file");
859	+	}
860	+	}
861	+
862	+	/* Get the initial config from the filter manager. Should this fail,
863	+	* wait, and then try again. */
864	+
865	+	sg_get_disk_io_stats_diff(&packet_num);
866	+	packet_num=0;
867	+
868	+	while(ihost_getconfig(&ihost_state)!=0){
869	+	log_msg(LOG_ERR, "Failed to get ihost config");
870	+	sleep(10);
871	+	}
872	+
873	+	while((create_udp_sockinfo(&udp_sockinfo, ihost_state.server_fqdn, ihost_state.server_udp_port))!=0){
874	+	log_msg(LOG_ERR, "Failed to create udp socket");
875	+	sleep(10);
876	+	}
877	+
878	+	config_time=time(NULL)+ihost_state.config_ttl;
879	+
880	+	/* Now have config.. collect data and send as often as required */
881	+	for(;;){
882	+	cur_time=time(NULL);
883	+
884	+	if(cur_time>=udp_time){
885	+	if((get_system_stats(packet_num++, &ihost_state, packet, MAX_UDP_PACKET_SIZE))!=0){
886	+	log_msg(LOG_ERR, "Failed to get system stats");
887	+	}
888	+
889	+	len=strlen(packet);
890	+	log_msg(LOG_DEBUG, "Packet size: %d\nPacket: %s\n", len, packet);
891	+
892	+	if((sendto(udp_sockinfo.sock, packet, len, 0, (struct sockaddr *) &udp_sockinfo.addr, sizeof(udp_sockinfo.addr)))!=len){
893	+	log_msg(LOG_CRIT, "Failed to send packet");
894	+	}
895	+	udp_time=cur_time+ihost_state.udp_update_time;
896	+	log_msg(LOG_DEBUG, "Next packet should be sent on %d", udp_time);
897	+	}
898	+
899	+	if(cur_time>=config_time){
900	+	if(ihost_getconfig(&ihost_state)!=0){
901	+	/* If we can't get the config, try again 5 minutes time */
902	+	log_msg(LOG_ERR, "Failed to get config, try again 5 minutes time");
903	+	config_time=time(NULL)+300;
904	+	}else{
905	+	close(udp_sockinfo.sock);
906	+
907	+	while((create_udp_sockinfo(&udp_sockinfo, ihost_state.server_fqdn, ihost_state.server_udp_port))!=0){
908	+	log_msg(LOG_CRIT, "Failed to create udp socket");
909	+	sleep(10);
910	+	}
911	+
912	+	config_time=time(NULL)+ihost_state.config_ttl;
913	+
914	+	log_msg(LOG_DEBUG, "Config expires on %d\n", ihost_state.config_ttl);
915	+	}
916	+	}
917	+
918	+	sleep_delay=udp_time-time(NULL);
919	+	log_msg(LOG_DEBUG, "Sleeping for %d", sleep_delay);
920	+	if(sleep_delay>0) sleep(sleep_delay);
921	+	}
922	+
923	+	return(0);
924	+	}

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