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

Comparing projects/cms/source/ihost/ihost.c (file contents):
Revision 1.8 by pajs, Mon May 13 11:01:27 2002 UTC vs.
Revision 1.38 by pajs, Wed Mar 19 21:51:50 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	<	#define RECONFIGURE_RETURN_CODE 2
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;
52	>
53	>	/* Weird stuff iscream wants sent to it */
54		char *last_modified;
55	<	char *files_list;
56	<	char *key;
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\n", sendString);
32	<	fflush(f_w);
33	<	reply=fpgetline(f_r);
34	<	/* Returns pointer to static buffer */
35	<	return reply;
36	<	}
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;
42	<	FILE *fm_fd_r, *fm_fd_w;
43	<	char *reply;
44	<	char *reply_ptr;
73	>	int sock;
74	>	}udp_sockinfo_t;
75
76	<	/* Check to see if anything needs to be free'd */
47	<	if (ihost_state->my_fqdn!=NULL) free(ihost_state->my_fqdn);
48	<	if (ihost_state->server_fqdn!=NULL) free(ihost_state->server_fqdn);
49	<	if (ihost_state->last_modified!=NULL) free(ihost_state->last_modified);
50	<	if (ihost_state->files_list!=NULL) free(ihost_state->files_list);
76	>	ihost_config_t ihost_config;
77
78	<	if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) {
53	<	errf("Can't create AF_INET socket (%m)");
54	<	return -1;
55	<	}
78	>	extern int errno;
79
80	<	if (get_host_addr(ihost_state->fm_host, &haddr) != 0){
81	<	errf("Failed to resolve address %s (%m)", ihost_state->fm_host);
82	<	return -1;
80	>	/* Taken from the OpenSSH code. Its licence included in function.*/
81	>	#ifndef HAVE_STRLCAT
82	>
83	>	/*
84	>	* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
85	>	* All rights reserved.
86	>	*
87	>	* Redistribution and use in source and binary forms, with or without
88	>	* modification, are permitted provided that the following conditions
89	>	* are met:
90	>	* 1. Redistributions of source code must retain the above copyright
91	>	*    notice, this list of conditions and the following disclaimer.
92	>	* 2. Redistributions in binary form must reproduce the above copyright
93	>	*    notice, this list of conditions and the following disclaimer in the
94	>	*    documentation and/or other materials provided with the distribution.
95	>	* 3. The name of the author may not be used to endorse or promote products
96	>	*    derived from this software without specific prior written permission.
97	>	*
98	>	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
99	>	* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
100	>	* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
101	>	* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
102	>	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
103	>	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
104	>	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
105	>	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
106	>	* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
107	>	* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
108	>	*/
109	>
110	>	/*
111	>	* Appends src to string dst of size siz (unlike strncat, siz is the
112	>	* full size of dst, not space left).  At most siz-1 characters
113	>	* will be copied.  Always NUL terminates (unless siz <= strlen(dst)).
114	>	* Returns strlen(src) + MIN(siz, strlen(initial dst)).
115	>	* If retval >= siz, truncation occurred.
116	>	*/
117	>	size_t
118	>	strlcat(dst, src, siz)
119	>	char *dst;
120	>	const char *src;
121	>	size_t siz;
122	>	{
123	>	register char *d = dst;
124	>	register const char *s = src;
125	>	register size_t n = siz;
126	>	size_t dlen;
127	>
128	>	/* Find the end of dst and adjust bytes left but don't go past end */
129	>	while (n-- != 0 && *d != '\0')
130	>	d++;
131	>	dlen = d - dst;
132	>	n = siz - dlen;
133	>
134	>	if (n == 0)
135	>	return(dlen + strlen(s));
136	>	while (*s != '\0') {
137	>	if (n != 1) {
138	>	*d++ = *s;
139	>	n--;
140	>	}
141	>	s++;
142	>	}
143	>	*d = '\0';
144	>
145	>	return(dlen + (s - src));       /* count does not include NUL */
146	>	}
147	>
148	>	#endif
149	>	/* End strlcat function taken from OpenSSH */
150	>
151	>	void log_msg(int level, char *format, ...){
152	>	int cur_errno;
153	>	va_list ap;
154	>
155	>	cur_errno=errno;
156	>
157	>	if(level<=ihost_config.verbose){
158	>	va_start(ap, format);
159	>	vfprintf(ihost_config.log, format, ap);
160	>	va_end(ap);
161	>	if(level==LOG_CRIT){
162	>	fprintf(ihost_config.log, " (%s)\n", strerror(cur_errno));
163	>	}else{
164	>	fprintf(ihost_config.log, "\n");
165	>	}
166	>	fflush(ihost_config.log);
167		}
168	+	}
169
170	<	memset((char *)&addr, 0, sizeof addr);
171	<	addr.sin_family = AF_INET;
172	<	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
173	<	addr.sin_port =  htons(ihost_state->fm_port);
170	>	/* Takes many pointers, checks if they are NULL or not, and then free's them */
171	>	/* Deprciated - and i only wrote it today! :)
172	>	void m_free(int num_pointers, ...){
173	>	int x=0;
174	>	va_list ap;
175	>	void *p;
176
177	<	if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
178	<	errf("Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
179	<	return -1;
177	>	va_start(ap, num_pointers);
178	>	for(;x<num_pointers;x++){
179	>	p=va_arg(ap, void*);
180	>	if(p!=NULL){
181	>	free(p);
182	>	}
183		}
184	+	va_end(ap);
185	+	}
186	+	*/
187
188	<	/* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */
189	<	if ((fm_fd_r=fdopen(sd,"r")) == NULL){
190	<	errf("Failed to open read stream (%m)");
191	<	return -1;
188	>	int create_udp_sockinfo(udp_sockinfo_t *udp_sockinfo, char *hostname, int port){
189	>
190	>	struct in_addr haddr;
191	>
192	>	log_msg(LOG_DEBUG, "Resolving name for udp connection");
193	>	if(get_host_addr(hostname, &haddr) != 0){
194	>	log_msg(LOG_CRIT, "Failed to lookup name");
195	>	return 1;
196		}
197
198	<	if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){
199	<	errf("Failed to open write stream (%m)");
200	<	return -1;
198	>	if((udp_sockinfo->sock=socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0){
199	>	log_msg(LOG_CRIT, "Failed to create UDP socket");
200	>	return 1;
201		}
202
203	<	reply=sock_comm(fm_fd_r, fm_fd_w, "STARTCONFIG");
204	<	if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
205	<	errf("Server error");
206	<	return -1;
203	>	memset(&(udp_sockinfo->addr), 0, sizeof(struct sockaddr_in));
204	>	udp_sockinfo->addr.sin_family=AF_INET;
205	>	memcpy((char *)&(udp_sockinfo->addr.sin_addr), &haddr, sizeof(haddr));
206	>	udp_sockinfo->addr.sin_port = htons(port);
207	>
208	>	log_msg(LOG_DEBUG, "Socket created");
209	>	return 0;
210	>	}
211	>
212	>	FILE *create_tcp_connection(char *hostname, int port){
213	>	int sock;
214	>	struct sockaddr_in addr;
215	>	struct in_addr haddr;
216	>	FILE *f;
217	>
218	>	log_msg(LOG_DEBUG, "Creating tcp socket");
219	>	if((sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP))<0){
220	>	log_msg(LOG_CRIT, "Failed to make TCP Socket");
221	>	return NULL;
222		}
223
224	<	reply=sock_comm(fm_fd_r, fm_fd_w, "LASTMODIFIED");
225	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){
226	<	errf("Server error (%m)");
227	<	return -1;
224	>	if((get_host_addr(hostname, &haddr))!=0){
225	>	log_msg(LOG_CRIT, "Failed to lookup name for %s", hostname);
226	>	close(sock);
227	>	return NULL;
228		}
229	<	if((ihost_state->last_modified=strdup(reply)) == NULL){
230	<	errf("strdup failed (%m)");
231	<	return -1;
232	<	}
229	>
230	>	memset(&addr, 0, sizeof(addr));
231	>	addr.sin_family = AF_INET;
232	>	memcpy(&addr.sin_addr, &haddr, sizeof(haddr));
233	>	addr.sin_port = htons(port);
234	>
235	>	log_msg(LOG_DEBUG, "Creating a tcp connection");
236	>	if(connect(sock, (struct sockaddr *)&addr, sizeof(addr)) !=0){
237	>	log_msg(LOG_CRIT, "Failed to connect to hostname %s on port %d", hostname, port);
238	>	close(sock);
239	>	return NULL;
240	>	}
241	>
242	>	if((f=fdopen(sock, "r+"))==NULL){
243	>	log_msg(LOG_CRIT, "Failed to connect to open filedescriptor on tcp connection");
244	>	close(sock);
245	>	return NULL;
246	>	}
247	>
248	>	return f;
249	>	}
250	>
251	>	int tcp_comm(FILE *f, char *send, char **response, char *expected){
252	>
253	>	log_msg(LOG_DEBUG, "Sending %s", send);
254	>	fprintf(f, "%s\n", send);
255	>	fflush(f);
256	>	*response=fpgetline(f);
257	>	fseek(f, 0, SEEK_CUR);
258	>
259	>	if(*response!=NULL) log_msg(LOG_DEBUG, "Recieved %s", *response);
260	>
261	>	if( (*response==NULL) || (strcmp(*response, "ERROR")==0) ) return -1;
262
263	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FILELIST");
264	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){
265	<	errf("Server error (%m)");
263	>	if(expected==NULL) return 0;
264	>
265	>	if((strcmp(expected, *response))==0) return 0;
266	>
267	>	log_msg(LOG_DEBUG, "Did not get expected response");
268	>	return -1;
269	>	}
270	>
271	>	int tcp_comm_strdup(FILE *f, char *send, char **response, char *expected){
272	>	if((tcp_comm(f, send, response, expected))!=0){
273		return -1;
274		}
104	–	if((ihost_state->files_list=strdup(reply)) == NULL){
105	–	errf("strdup failed (%m)");
106	–	return -1;
107	–	}
275
276	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FQDN");
277	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
278	<	errf("Server error (%m)");
276	>	*response=strdup(*response);
277	>	if (response==NULL) return -1;
278	>
279	>	return 0;
280	>	}
281	>
282	>	int ihost_getconfig(ihost_state_t *ihost_state){
283	>
284	>	FILE *tcp_con;
285	>	char *response;
286	>	char *response_ptr;
287	>
288	>	/* Keep these in case of a failure and so it can keep running on the old config */
289	>	char *file_list=NULL;
290	>	char *last_modified=NULL;
291	>	char *host_fqdn=NULL;
292	>	char *host_ip=NULL;
293	>	int udp_update_time=0;
294	>	char *server_fqdn=NULL;
295	>	int server_udp_port=0;
296	>	time_t config_ttl=0;
297	>
298	>	if((tcp_con=create_tcp_connection(ihost_state->filtermanager_host, ihost_state->filtermanager_port))==NULL){
299		return -1;
300		}
301	<	if((ihost_state->my_fqdn=strdup(reply)) == NULL){
302	<	errf("strdup failed (%m)");
303	<	return -1;
301	>
302	>	if(ihost_state->file_list!=NULL || ihost_state->last_modified!=NULL){
303	>	if(tcp_con==NULL){
304	>	goto error;
305	>	}
306	>
307	>	if((tcp_comm(tcp_con, "CHECKCONFIG", &response, "OK"))!=0){
308	>	goto error;
309	>	}
310	>
311	>	if((tcp_comm(tcp_con, ihost_state->file_list, &response, "OK"))!=0){
312	>	goto error;
313	>	}
314	>
315	>	if((tcp_comm(tcp_con, ihost_state->last_modified, &response, "OK"))==0){
316	>	if((tcp_comm(tcp_con, "END", &response, "OK"))!=0){
317	>	goto error;
318	>	}
319	>	fclose(tcp_con);
320	>	return 0;
321	>	}else{
322	>	if((strcmp(response, "EXPIRED"))!=0){
323	>	goto error;
324	>	}
325	>	}
326		}
327
328	<	reply=sock_comm(fm_fd_r, fm_fd_w, "UDPUpdateTime");
329	<	if(reply== NULL){
330	<	errf("Server error (%m)");
331	<	return -1;
328	>	/* If we got to here, the config must of expired */
329	>
330	>	if((tcp_comm(tcp_con, "STARTCONFIG", &response, "OK"))!=0){
331	>	goto error;
332		}
333	<	if (strncasecmp(reply, "ERROR", 5) != 0){
334	<	ihost_state->udp_update_time=atoi(reply);
333	>
334	>	if((tcp_comm_strdup(tcp_con, "LASTMODIFIED", &response, NULL))!=0){
335	>	goto error;
336		}
337	+	last_modified=response;
338	+
339	+	if((tcp_comm_strdup(tcp_con, "FILELIST", &response, NULL))!=0){
340	+	goto error;
341	+	}
342	+	file_list=response;
343
344	<	reply=sock_comm(fm_fd_r, fm_fd_w, "TCPUpdateTime");
345	<	if(reply== NULL){
130	<	errf("Server error (%m)");
131	<	return -1;
344	>	if((tcp_comm_strdup(tcp_con, "FQDN", &response, NULL))!=0){
345	>	goto error;
346		}
347	<	if (strncasecmp(reply, "ERROR", 5) != 0){
348	<	ihost_state->tcp_update_time=atoi(reply);
347	>	host_fqdn=response;
348	>
349	>	if((tcp_comm_strdup(tcp_con, "IP", &response, NULL))!=0){
350	>	goto error;
351		}
352	+	host_ip=response;
353
354	<	reply=sock_comm(fm_fd_r, fm_fd_w, "ENDCONFIG");
355	<	if(reply== NULL){
139	<	errf("Server error (%m)");
140	<	return -1;
354	>	if((tcp_comm(tcp_con, "UDPUpdateTime", &response, NULL))!=0){
355	>	goto error;
356		}
357	+	udp_update_time=atoi(response);
358
359	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FILTER");
360	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
145	<	errf("Server error (%m)");
146	<	return -1;
359	>	if((tcp_comm(tcp_con, "ConfigTTL", &response, NULL))!=0){
360	>	goto error;
361		}
362	<	reply_ptr=strchr(reply,';');
363	<	if (reply_ptr==NULL){
364	<	errf("Incorrect data returned");
365	<	return -1;
362	>	config_ttl=atoi(response);
363	>
364	>	if((tcp_comm(tcp_con, "ENDCONFIG", &response, NULL))!=0){
365	>	goto error;
366		}
367	<	*reply_ptr='\0';
368	<	if((ihost_state->server_fqdn=strdup(reply)) == NULL){
369	<	errf("strdup failed (%m)");
370	<	return -1;
367	>
368	>	if((tcp_comm(tcp_con, "FILTER", &response, NULL))!=0){
369	>	goto error;
370	>	}else{
371	>	response_ptr=strchr(response,';');
372	>	if(response_ptr==NULL){
373	>	log_msg(LOG_ERR, "Incorrect data sent by server");
374	>	goto error;
375	>	}
376	>	*response_ptr='\0';
377	>	server_fqdn=strdup(response);
378	>	if(server_fqdn==NULL){
379	>	goto error;
380	>	}
381	>	response_ptr++;
382	>	if(response_ptr==NULL){
383	>	log_msg(LOG_ERR, "Incorrect data sent by server");
384	>	goto error;
385	>	}
386	>
387	>	printf("string : %s\n", response_ptr);
388	>	server_udp_port=atoi(response_ptr);
389	>
390	>	if (server_udp_port==0){
391	>	log_msg(LOG_ERR, "Incorrect data sent by server");
392	>	goto error;
393	>	}
394		}
395	<	reply=reply_ptr + 1;
396	<	reply_ptr=strchr(reply,';');
397	<	if (reply_ptr==NULL){
161	<	errf("Incorrect data returned 2");
162	<	return -1;
395	>
396	>	if((tcp_comm(tcp_con, "END", &response, "OK"))!=0){
397	>	goto error;
398		}
399	<	*reply_ptr='\0';
400	<	ihost_state->server_udp_port=atoi(reply);
401	<	reply=reply_ptr+1;
402	<	ihost_state->server_tcp_port=atoi(reply);
403	<	if ((ihost_state->server_tcp_port==0) || (ihost_state->server_udp_port==0)){
404	<	errf("Incorrect data returned 3 ");
405	<	return -1;
399	>
400	>	fclose(tcp_con);
401	>
402	>	/* We have the data we need, and its all been read correctly */
403	>
404	>	/* Free the old data before pointing them to the new data. m_free copes should
405	>	* this already be NULL */
406	>	if(ihost_state->file_list!=NULL) free(ihost_state->file_list);
407	>	if(ihost_state->last_modified!=NULL) free(ihost_state->last_modified);
408	>	if(ihost_state->host_fqdn!=NULL) free(ihost_state->host_fqdn);
409	>	if(ihost_state->server_fqdn!=NULL) free(ihost_state->server_fqdn);
410	>	if(ihost_state->host_ip!=NULL) free(ihost_state->host_ip);
411	>
412	>	ihost_state->file_list=file_list;
413	>	ihost_state->last_modified=last_modified;
414	>	ihost_state->host_fqdn=host_fqdn;
415	>	ihost_state->host_ip=host_ip;
416	>	ihost_state->server_fqdn=server_fqdn;
417	>	ihost_state->server_udp_port=server_udp_port;
418	>	ihost_state->udp_update_time=udp_update_time;
419	>	ihost_state->config_ttl=config_ttl;
420	>
421	>	log_msg(LOG_DEBUG, "UDP Update time %d", udp_update_time);
422	>	log_msg(LOG_DEBUG, "Configure ttl %d", config_ttl);
423	>
424	>	return 0;
425	>
426	>	error:
427	>
428	>	if(file_list!=NULL) free(file_list);
429	>	if(last_modified!=NULL) free(last_modified);
430	>	if(host_fqdn!=NULL) free(host_fqdn);
431	>	if(server_fqdn!=NULL) free(server_fqdn);
432	>	if(host_ip!=NULL) free(host_ip);
433	>	fclose(tcp_con);
434	>
435	>	return -1;
436	>	}
437	>
438	>	int get_system_stats(int seq_no, ihost_state_t *ihost_state, char *xml, int size){
439	>	char tmp[size];
440	>	cpu_percent_t *cpu_percent;
441	>	mem_stat_t *mem_stats;
442	>	load_stat_t *load_stats;
443	>	user_stat_t *user_stats;
444	>	swap_stat_t *swap_stats;
445	>	general_stat_t *general_stats;
446	>	disk_stat_t *disk_stats;
447	>	diskio_stat_t *diskio_stats;
448	>	process_stat_t *process_stats;
449	>	network_stat_t *network_stats;
450	>	page_stat_t *page_stats;
451	>	int disk_entries=0;
452	>	int diskio_entries=0;
453	>	int network_entries=0;
454	>
455	>	int counter;
456	>	long long x;
457	>	long long y;
458	>
459	>	/* Print start of the packet we want */
460	>	snprintf(xml, size, "<packet seq_no=\"%d\" machine_name=\"%s\" date=\"%ld\" type=\"data\" ip=\"%s\">", \
461	>	seq_no, ihost_state->host_fqdn, time(NULL), ihost_state->host_ip);
462	>
463	>	/* Get cpu stats, check it is correct, then fill in its entry for the xml */
464	>	if((cpu_percent=cpu_percent_usage())==NULL){
465	>	log_msg(LOG_CRIT, "Failed to get cpu statistics");
466	>	}else{
467	>	snprintf(tmp, size, \
468	>	"<cpu><user>%3.2f</user><kernel>%3.2f</kernel><idle>%3.2f</idle><iowait>%3.2f</iowait><swap>%3.2f</swap></cpu>", \
469	>	cpu_percent->user, \
470	>	cpu_percent->kernel, \
471	>	cpu_percent->idle, \
472	>	cpu_percent->iowait, \
473	>	cpu_percent->swap);
474	>
475	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
476		}
477
478	<	reply=sock_comm(fm_fd_r, fm_fd_w, "END");
479	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){
480	<	errf("Server error (%m)");
481	<	return -1;
478	>
479	>	/*Get mem stats, and fill in xml */
480	>	if((mem_stats=get_memory_stats())==NULL){
481	>	log_msg(LOG_CRIT, "Failed to get memory statistics");
482	>	}else{
483	>	snprintf(tmp, size, \
484	>	"<memory><total>%lld</total><free>%lld</free><used>%lld</used><cache>%lld</cache></memory>", \
485	>	mem_stats->total, \
486	>	mem_stats->free, \
487	>	mem_stats->used, \
488	>	mem_stats->cache);
489	>
490	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
491		}
492
493	<	if(fclose(fm_fd_r) !=0){
494	<	errf("Failed to close read FD (%m)");
495	<	return -1;
493	>
494	>	/* Get load stats */
495	>	if((load_stats=get_load_stats())==NULL){
496	>	log_msg(LOG_CRIT, "Failed to get load statistics");
497	>	}else{
498	>	snprintf(tmp, size, \
499	>	"<load><load1>%.2lf</load1><load5>%.2lf</load5><load15>%.2lf</load15></load>", \
500	>	load_stats->min1, \
501	>	load_stats->min5, \
502	>	load_stats->min15);
503	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
504		}
505	<	if(fclose(fm_fd_w) !=0){
506	<	errf("Failed to close write FD (%m)");
507	<	return -1;
505	>
506	>
507	>	/* get user stats */
508	>
509	>	if((user_stats=get_user_stats())==NULL){
510	>	log_msg(LOG_CRIT, "Failed to get user statistics");
511	>	}else{
512	>
513	>	snprintf(tmp, size, \
514	>	"<users><list>%s</list><count>%d</count></users>", \
515	>	user_stats->name_list, \
516	>	user_stats->num_entries);
517	>
518	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
519		}
520
188	–	return 0;
189	–	}
521
522	<	int heartbeat(ihost_state_t *ihost_state){
523	<	struct sockaddr_in addr;
524	<	struct in_addr haddr;
525	<	int sd;
526	<	FILE *fm_fd_r, *fm_fd_w;
527	<	char *reply;
528	<	int exitcode=0;
522	>	/* swap stats */
523	>	if((swap_stats=get_swap_stats())==NULL){
524	>	log_msg(LOG_CRIT, "Failed to get swap statistics");
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
199	–	if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) {
200	–	errf("Can't create AF_INET socket (%m)");
201	–	return -1;
202	–	}
535
536	<	if (get_host_addr(ihost_state->server_fqdn, &haddr) != 0){
537	<	errf("Failed to resolve address %s (%m)", ihost_state->fm_host);
538	<	return -1;
539	<	}
536	>	/* general stats */
537	>
538	>	if((general_stats=get_general_stats())==NULL){
539	>	log_msg(LOG_CRIT, "Failed to get general statistics");
540	>	}else{
541	>	snprintf(tmp, size, \
542	>	"<os><name>%s</name><release>%s</release><version>%s</version><sysname>%s</sysname><platform>%s</platform><uptime>%ld</uptime></os>", \
543	>	general_stats->os_name, \
544	>	general_stats->os_release, \
545	>	general_stats->os_version, \
546	>	general_stats->hostname, \
547	>	general_stats->platform, \
548	>	(long)general_stats->uptime);
549	>
550	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
551	>
552	>	}
553
554	<	memset((char *)&addr, 0, sizeof addr);
555	<	addr.sin_family = AF_INET;
556	<	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
557	<	addr.sin_port =  htons(ihost_state->server_tcp_port);
554	>
555	>	/* process stats */
556	>	if((process_stats=get_process_stats())==NULL){
557	>	log_msg(LOG_CRIT, "Failed to get general statistics");
558	>	}else{
559	>	snprintf(tmp, size, \
560	>	"<processes><sleeping>%d</sleeping><cpu>%d</cpu><zombie>%d</zombie><stopped>%d</stopped><total>%d</total></processes>",\
561	>	process_stats->sleeping, \
562	>	process_stats->running, \
563	>	process_stats->zombie, \
564	>	process_stats->stopped, \
565	>	process_stats->total);
566
567	<	if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
215	<	errf("Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
216	<	return -1;
217	<	}
567	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
568
569	<	/* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */
220	<	if ((fm_fd_r=fdopen(sd,"r")) == NULL){
221	<	errf("Failed to open stream (%m)");
222	<	return -1;
223	<	}
569	>	}
570
225	–	if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){
226	–	errf("Failed to open stream (%m)");
227	–	return -1;
228	–	}
571
572	<	reply=sock_comm(fm_fd_r, fm_fd_w, "HEARTBEAT");
573	<	if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
574	<	errf("Server error");
575	<	return -1;
576	<	}
577	<	if (ihost_state->fm_host!=NULL) free(ihost_state->fm_host);
578	<	reply=sock_comm(fm_fd_r, fm_fd_w, "CONFIG");
579	<	if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
580	<	errf("Server error");
581	<	return -1;
582	<	}
572	>	/* Get paging stats */
573	>	if((page_stats=get_page_stats_diff())==NULL){
574	>	log_msg(LOG_CRIT, "Failed to get paging statistics");
575	>	}else{
576	>	if(page_stats->systime!=0){
577	>	x=page_stats->pages_pagein / page_stats->systime;
578	>	y=page_stats->pages_pageout / page_stats->systime;
579	>	}else{
580	>	x=page_stats->pages_pagein;
581	>	y=page_stats->pages_pageout;
582	>	}
583	>	snprintf(tmp, size, \
584	>	"<pages><pageins>%lld</pageins><pageouts>%lld</pageouts></pages>", \
585	>	x, \
586	>	y);
587	>
588	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
589	>	}
590
242	–	reply=sock_comm(fm_fd_r, fm_fd_w, ihost_state->files_list);
243	–	if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
244	–	errf("Server error");
245	–	return -1;
246	–	}
591
592	<	reply=sock_comm(fm_fd_r, fm_fd_w, ihost_state->last_modified);
593	<	if (reply==NULL) {
594	<	errf("Server error");
595	<	return -1;
596	<	}
597	<	if (strncasecmp(reply, "ERROR", 5) == 0){
598	<	/* Means the config has changed */
599	<	exitcode=RECONFIGURE_RETURN_CODE;
592	>	/* get diskio stats */
593	>
594	>	if((diskio_stats=get_diskio_stats_diff(&diskio_entries))==NULL){
595	>	log_msg(LOG_CRIT, "Failed to get diskio statistics");
596	>	}else{
597	>	strlcat(xml, "<diskio>", size);
598	>	for(counter=0;counter<diskio_entries;counter++){
599	>
600	>	if(diskio_stats->systime!=0){
601	>	x=diskio_stats->read_bytes / diskio_stats->systime;
602	>	y=diskio_stats->write_bytes / diskio_stats->systime;
603	>	}else{
604	>	x=diskio_stats->read_bytes;
605	>	y=diskio_stats->write_bytes;
606	>	}
607	>
608	>	snprintf(tmp, size, \
609	>	"<p%d name=\"%s\" rbytes=\"%lld\" wbytes=\"%lld\"></p%d>", \
610	>	counter, \
611	>	diskio_stats->disk_name, \
612	>	x, \
613	>	y, \
614	>	counter);
615	>
616	>	strlcat(xml, tmp, size);
617	>	diskio_stats++;
618	>	}
619	>
620	>	if(strlcat(xml, "</diskio>", size) >= size) goto too_big_error;
621	>
622		}
257	–	reply=sock_comm(fm_fd_r, fm_fd_w, "KEY");
258	–	if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
259	–	errf("Server error");
260	–	return -1;
261	–	}
262	–	if (ihost_state->key!=NULL) free(ihost_state->key);
263	–
264	–	if((ihost_state->key=strdup(reply)) == NULL){
265	–	errf("strdup failed (%m)");
266	–	return -1;
267	–	}
623
624	<	reply=sock_comm(fm_fd_r, fm_fd_w, "ENDHEARTBEAT");
625	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){
626	<	errf("Server error (%m)");
627	<	return -1;
628	<	}
624	>
625	>	/* get networks stats */
626	>
627	>	if((network_stats=get_network_stats_diff(&network_entries))==NULL){
628	>	log_msg(LOG_CRIT, "Failed to get network statistics");
629	>	}else{
630	>	strlcat(xml, "<net>", size);
631	>	for(counter=0;counter<network_entries;counter++){
632	>	if(network_stats->systime!=0){
633	>	x=network_stats->rx / network_stats->systime;
634	>	y=network_stats->tx / network_stats->systime;
635	>	}else{
636	>	x=network_stats->rx;
637	>	y=network_stats->tx;
638	>	}
639
640	<	if(fclose(fm_fd_r) !=0){
641	<	errf("Failed to close read FD (%m)");
642	<	return -1;
643	<	}
644	<	if(fclose(fm_fd_w) !=0){
645	<	errf("Failed to close write FD (%m)");
646	<	return -1;
282	<	}
640	>	snprintf(tmp, size, \
641	>	"<p%d name=\"%s\" rx=\"%lld\" tx=\"%lld\"></p%d>", \
642	>	counter, \
643	>	network_stats->interface_name, \
644	>	x, \
645	>	y, \
646	>	counter);
647
648	<	return exitcode;
648	>	strlcat(xml, tmp, size);
649	>	network_stats++;
650	>	}
651	>
652	>	if(strlcat(xml, "</net>", size) >= size) goto too_big_error;
653	>
654	>	}
655	>
656	>
657	>	/* get disk stats */
658	>
659	>	if((disk_stats=get_disk_stats(&disk_entries))==NULL){
660	>	log_msg(LOG_CRIT, "Failed to get disk statistics");
661	>	}else{
662	>	strlcat(xml, "<disk>", size);
663	>	for(counter=0;counter<disk_entries;counter++){
664	>	snprintf(tmp, size, \
665	>	"<p%d name=\"%s\" mount=\"%s\" fstype=\"%s\" total=\"%lld\" used=\"%lld\" avail=\"%lld\" totalinodes=\"%lld\" usedinodes=\"%lld\" freeinodes=\"%lld\"></p%d>", \
666	>	counter, \
667	>	disk_stats->device_name, \
668	>	disk_stats->mnt_point, \
669	>	disk_stats->fs_type, \
670	>	disk_stats->size, \
671	>	disk_stats->used, \
672	>	disk_stats->avail, \
673	>	disk_stats->total_inodes, \
674	>	disk_stats->used_inodes, \
675	>	disk_stats->free_inodes, \
676	>	counter);
677	>
678	>	strlcat(xml, tmp, size);
679	>
680	>	disk_stats++;
681	>	}
682	>
683	>	if(strlcat(xml, "</disk>", size) >= size) goto too_big_error;
684	>
685	>	}
686	>
687	>
688	>	if(strlcat(xml, "</packet>", size) >= size) goto too_big_error;
689	>
690	>	/*If we got to here, it should of all been filled in nicely now */
691	>	return 0;
692	>
693	>	too_big_error:
694	>	log_msg(LOG_ERR, "UDP Packet is too large. Throwing away the packet");
695	>	return -1;
696		}
697
698
699	+
700	+	void usage(char *progname){
701	+	fprintf(stderr, "Usage %s [options] server port\n", progname);
702	+	fprintf(stderr, "Options\n");
703	+	fprintf(stderr, "  -v           Verbose mode,-vv would make even more verbose\n");
704	+	fprintf(stderr, "  -f           Foreground mode, print errors to stderr\n");
705	+	fprintf(stderr, "  -V           Print version number\n");
706	+	fprintf(stderr, "  -h           Prints this help page\n");
707	+	exit(1);
708	+	}
709	+
710		int main(int argc, char **argv){
711	+
712		ihost_state_t ihost_state;
713	<	int heartbeat_exit;
714	<	int counter=0;
713	>	udp_sockinfo_t udp_sockinfo;
714	>
715	>	int cmdopt;
716	>	extern int optind;
717	>	pid_t pid;
718	>	FILE *f;
719	>	int packet_num=0;
720	>	int len;
721
722	+	char packet[MAX_UDP_PACKET_SIZE];
723
724	<	/* NULL'ify so i can tell if i need to free it or not */
295	<	ihost_state.fm_host=NULL;
296	<	ihost_state.my_fqdn=NULL;
297	<	ihost_state.server_fqdn=NULL;
298	<	ihost_state.last_modified=NULL;
299	<	ihost_state.files_list=NULL;
300	<	ihost_state.key=NULL;
724	>	time_t cur_time, sleep_delay, udp_time=0, config_time=0;
725
726	<	errf_set_progname(argv[0]);
727	<	if(argc!=3){
728	<	errf_usage("<host> <port>");
726	>	/* Set default settings */
727	>	ihost_config.verbose=1;
728	>	ihost_config.daemon=1;
729	>	/* Set all errors to go down stderr until told otherwise */
730	>	ihost_config.log=stderr;
731	>
732	>	/* Blank ihost_state to default settings */
733	>	ihost_state.filtermanager_host=NULL;
734	>	ihost_state.host_fqdn=NULL;
735	>	ihost_state.host_ip=NULL;
736	>	ihost_state.server_fqdn=NULL;
737	>	ihost_state.file_list=NULL;
738	>	ihost_state.last_modified=NULL;
739	>
740	>	while((cmdopt=getopt(argc, argv, "vfhV")) != -1){
741	>	switch(cmdopt){
742	>	case 'v':
743	>	ihost_config.verbose++;
744	>	break;
745	>
746	>	case 'f':
747	>	/* Force syslog logging since stderr will be closed in this case */
748	>	ihost_config.daemon=0;
749	>	break;
750	>
751	>	case 'h':
752	>	usage(argv[0]);
753	>	break;
754	>
755	>	case 'V':
756	>	fprintf(stderr, "%s version %s\n", argv[0], VERSION);
757	>	break;
758	>
759	>	default:
760	>	usage(argv[0]);
761	>	exit(1);
762	>	}
763	>	}
764	>
765	>	if(argc!=optind+2){
766	>	usage(argv[0]);
767	>	exit(1);
768	>	}
769	>
770	>	ihost_state.filtermanager_host=strdup(argv[optind]);
771	>	ihost_state.filtermanager_port=atoi(argv[optind+1]);
772	>
773	>	if(gethostbyname(ihost_state.filtermanager_host)==NULL){
774	>	log_msg(LOG_CRIT, "Failed to lookup hostname. Please check settings");
775		exit(1);
776		}
777	+	if(ihost_state.filtermanager_port==0){
778	+	log_msg(LOG_ERR, "Invalid port number");
779	+	exit(1);
780	+	}
781
782	<	ihost_state.fm_host=argv[1];
783	<	ihost_state.fm_port=atoi(argv[2]);
782	>	if(ihost_config.daemon){
783	>	pid=fork();
784	>	if(pid==-1){
785	>	log_msg(LOG_CRIT, "Failed to background exiting");
786	>	exit(1);
787	>	}else if(pid!=0){
788	>	/* Parent process */
789	>	return 0;
790	>	}
791	>	/* We should now be in the background*/
792	>	if(setsid()==-1){
793	>	log_msg(LOG_CRIT, "setsid failed");
794	>	exit(1);
795	>	}
796	>
797	>	if((ihost_config.log=fopen(LOG_FILE, "a"))==NULL){
798	>	ihost_config.log=stderr;
799	>	log_msg(LOG_CRIT, "Failed to open Logfiles %s for writing", LOG_FILE);
800	>	exit(1);
801	>	}
802
803	<	if(ihost_configure(&ihost_state)!=0){
804	<	errf("configure failed");
805	<	/* Ok, ideally we prob should have 2 copies of the structure and carry on if this
806	<	happens.. But we dont :) (at the moment) */
807	<	exit(1);
803	>	fclose(stdin);
804	>	fclose(stdout);
805	>	fclose(stderr);
806	>
807	>	}
808	>
809	>	log_msg(LOG_INFO, "Starting ihost");
810	>
811	>	log_msg(LOG_DEBUG,"Writing PID FILE");
812	>
813	>	pid=getpid();
814	>
815	>	if((f=fopen(PID_FILE,"w")) == NULL){
816	>	log_msg(LOG_CRIT, "Failed to write PID file");
817	>	}else{
818	>	if((fprintf(f,"%d",(int)pid)) <= 0 ){
819	>	log_msg(LOG_CRIT, "Failed to write PID file");
820	>	}
821	>	if((fclose(f))!=0){
822	>	log_msg(LOG_CRIT, "failed to close PID file");
823	>	}
824	>	}
825	>
826	>	/* Get the initial config from the filter manager. Should this fail,
827	>	* wait, and then try again. */
828	>
829	>	get_diskio_stats_diff(&packet_num);
830	>	packet_num=0;
831	>
832	>	while(ihost_getconfig(&ihost_state)!=0){
833	>	log_msg(LOG_ERR, "Failed to get ihost config");
834	>	sleep(10);
835		}
836
837	<	while(TRUE){
837	>	printf("%s\n%d\n", ihost_state.server_fqdn, ihost_state.server_udp_port);
838	>	while((create_udp_sockinfo(&udp_sockinfo, ihost_state.server_fqdn, ihost_state.server_udp_port))!=0){
839	>	log_msg(LOG_ERR, "Failed to create udp socket");
840	>	sleep(10);
841	>	}
842
843	<	heartbeat_exit=heartbeat(&ihost_state);
844	<	if(heartbeat_exit==RECONFIGURE_RETURN_CODE){
845	<	errf("heartbeat needs to be reconfigured");
846	<	ihost_configure(&ihost_state);
843	>	config_time=time(NULL)+ihost_state.config_ttl;
844	>
845	>	/* Now have config.. collect data and send as often as required */
846	>	for(;;){
847	>	cur_time=time(NULL);
848	>
849	>	if(cur_time>=udp_time){
850	>	if((get_system_stats(packet_num++, &ihost_state, packet, MAX_UDP_PACKET_SIZE))!=0){
851	>	log_msg(LOG_ERR, "Failed to get system stats");
852	>	}
853	>
854	>	len=strlen(packet);
855	>	log_msg(LOG_DEBUG, "Packet size: %d\nPacket: %s\n", len, packet);
856	>
857	>	if((sendto(udp_sockinfo.sock, packet, len, 0, (struct sockaddr *) &udp_sockinfo.addr, sizeof(udp_sockinfo.addr)))!=len){
858	>	log_msg(LOG_CRIT, "Failed to send packet");
859	>	}
860	>	udp_time=cur_time+ihost_state.udp_update_time;
861	>	log_msg(LOG_DEBUG, "Next packet should be sent on %d", udp_time);
862		}
863	<	if(heartbeat_exit==-1){
864	<	errf("ah crap");
865	<	exit(1);
866	<	}
867	<	printf("Count : %d\n",counter++);
868	<	printf("waiting %d\n",ihost_state.tcp_update_time);
869	<	sleep(ihost_state.tcp_update_time);
870	<	}
333	<	return 0;
334	<	}
863	>
864	>	if(cur_time>=config_time){
865	>	if(ihost_getconfig(&ihost_state)!=0){
866	>	/* If we can't get the config, try again 5 minutes time */
867	>	log_msg(LOG_ERR, "Failed to get config, try again 5 minutes time");
868	>	config_time=time(NULL)+300;
869	>	}else{
870	>	close(udp_sockinfo.sock);
871
872	+	while((create_udp_sockinfo(&udp_sockinfo, ihost_state.server_fqdn, ihost_state.server_udp_port))!=0){
873	+	log_msg(LOG_CRIT, "Failed to create udp socket");
874	+	sleep(10);
875	+	}
876	+
877	+	config_time=time(NULL)+ihost_state.config_ttl;
878	+
879	+	log_msg(LOG_DEBUG, "Config expires on %d\n", ihost_state.config_ttl);
880	+	}
881	+	}
882	+
883	+	sleep_delay=udp_time-time(NULL);
884	+	log_msg(LOG_DEBUG, "Sleeping for %d", sleep_delay);
885	+	if(sleep_delay>0) sleep(sleep_delay);
886	+	}
887	+
888	+	return(0);
889	+	}

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