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

Comparing projects/cms/source/ihost/ihost.c (file contents):
Revision 1.14 by pajs, Sun May 19 14:58:06 2002 UTC vs.
Revision 1.30 by pajs, Mon Mar 3 17:07:34 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
#	Line 17 | Line 18
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>
26		#include <stdlib.h>
27		#include <unistd.h>
23	–	#include <syslog.h>
24	–	#include <netinet/in.h>
25	–	#include "ukcprog.h"
26	–	#include <netdb.h>
28		#include <string.h>
29	<	#include "statgrab.h"
29	<	#include <time.h>
29	>	#include <sys/types.h>
30		#include <sys/socket.h>
31	+	#include <stdarg.h>
32	+	#include <errno.h>
33	+	#include <netdb.h>
34
35	<	#define RECONFIGURE_RETURN_CODE 2
36	<	#define UDP_MAX_PACKET_SIZE 8192
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);
54	<	fflush(f_w);
55	<	reply=fpgetline(f_r);
56	<	/* Returns pointer to static buffer */
57	<	return reply;
58	<	}
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;
64	<	FILE *fm_fd_r, *fm_fd_w;
65	<	char *reply;
66	<	char *reply_ptr;
73	>	int sock;
74	>	}udp_sockinfo_t;
75
76	<	/* Check to see if anything needs to be free'd */
69	<	if (ihost_state->my_fqdn!=NULL) free(ihost_state->my_fqdn);
70	<	if (ihost_state->server_fqdn!=NULL) free(ihost_state->server_fqdn);
71	<	if (ihost_state->last_modified!=NULL) free(ihost_state->last_modified);
72	<	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) {
79	<	errf("Can't create AF_INET socket (%m)");
80	<	return -1;
81	<	}
78	>	void log_msg(int level, char *format, ...){
79	>	extern int errno;
80	>	int cur_errno;
81	>	va_list ap;
82
83	<	if (get_host_addr(ihost_state->fm_host, &haddr) != 0){
84	<	errf("Failed to resolve address %s (%m)", ihost_state->fm_host);
85	<	return -1;
83	>	cur_errno=errno;
84	>
85	>	if(level<=ihost_config.verbose){
86	>	va_start(ap, format);
87	>	vfprintf(ihost_config.log, format, ap);
88	>	va_end(ap);
89	>	if(level==LOG_CRIT){
90	>	fprintf(ihost_config.log, " (%s)\n", strerror(cur_errno));
91	>	}else{
92	>	fprintf(ihost_config.log, "\n");
93	>	}
94		}
95	+	}
96
97	<	memset(&addr, 0, sizeof addr);
98	<	addr.sin_family = AF_INET;
99	<	memcpy(&addr.sin_addr, &haddr, sizeof haddr);
100	<	addr.sin_port =  htons(ihost_state->fm_port);
97	>	/* Takes many pointers, checks if they are NULL or not, and then free's them */
98	>	/* Deprciated - and i only wrote it today! :)
99	>	void m_free(int num_pointers, ...){
100	>	int x=0;
101	>	va_list ap;
102	>	void *p;
103
104	<	if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
105	<	errf("Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
106	<	return -1;
104	>	va_start(ap, num_pointers);
105	>	for(;x<num_pointers;x++){
106	>	p=va_arg(ap, void*);
107	>	if(p!=NULL){
108	>	free(p);
109	>	}
110		}
111	+	va_end(ap);
112	+	}
113	+	*/
114
115	<	/* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */
116	<	if ((fm_fd_r=fdopen(sd,"r")) == NULL){
117	<	errf("Failed to open read stream (%m)");
118	<	return -1;
115	>	int create_udp_sockinfo(udp_sockinfo_t *udp_sockinfo, char *hostname, int port){
116	>
117	>	struct in_addr haddr;
118	>
119	>	log_msg(LOG_DEBUG, "Resolving name for udp connection");
120	>	if(get_host_addr(hostname, &haddr) != 0){
121	>	log_msg(LOG_CRIT, "Failed to lookup name");
122	>	return 1;
123		}
124
125	<	if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){
126	<	errf("Failed to open write stream (%m)");
127	<	return -1;
125	>	if((udp_sockinfo->sock=socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0){
126	>	log_msg(LOG_CRIT, "Failed to create UDP socket");
127	>	return 1;
128		}
129
130	<	reply=sock_comm(fm_fd_r, fm_fd_w, "STARTCONFIG");
131	<	if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
132	<	errf("Server error");
133	<	return -1;
130	>	memset(&(udp_sockinfo->addr), 0, sizeof(struct sockaddr_in));
131	>	udp_sockinfo->addr.sin_family=AF_INET;
132	>	memcpy((char *)&(udp_sockinfo->addr.sin_addr), &haddr, sizeof(haddr));
133	>	udp_sockinfo->addr.sin_port = htons(port);
134	>
135	>	log_msg(LOG_DEBUG, "Socket created");
136	>	return 0;
137	>	}
138	>
139	>	FILE *create_tcp_connection(char *hostname, int port){
140	>	int sock;
141	>	struct sockaddr_in addr;
142	>	struct in_addr haddr;
143	>	FILE *f;
144	>
145	>	log_msg(LOG_DEBUG, "Creating tcp socket");
146	>	if((sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP))<0){
147	>	log_msg(LOG_CRIT, "Failed to make TCP Socket");
148	>	return NULL;
149		}
150
151	<	reply=sock_comm(fm_fd_r, fm_fd_w, "LASTMODIFIED");
152	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){
153	<	errf("Server error (%m)");
114	<	return -1;
151	>	if((get_host_addr(hostname, &haddr))!=0){
152	>	log_msg(LOG_CRIT, "Failed to lookup name for %s", hostname);
153	>	return NULL;
154		}
155	<	if((ihost_state->last_modified=strdup(reply)) == NULL){
156	<	errf("strdup failed (%m)");
157	<	return -1;
158	<	}
159	<
160	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FILELIST");
161	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){
162	<	errf("Server error (%m)");
163	<	return -1;
155	>
156	>	memset(&addr, 0, sizeof(addr));
157	>	addr.sin_family = AF_INET;
158	>	memcpy(&addr.sin_addr, &haddr, sizeof(haddr));
159	>	addr.sin_port = htons(port);
160	>
161	>	log_msg(LOG_DEBUG, "Creating a tcp connection");
162	>	if(connect(sock, (struct sockaddr *)&addr, sizeof(addr)) !=0){
163	>	log_msg(LOG_CRIT, "Failed to connect to hostname %s on port %d", hostname, port);
164	>	return NULL;
165		}
126	–	if((ihost_state->files_list=strdup(reply)) == NULL){
127	–	errf("strdup failed (%m)");
128	–	return -1;
129	–	}
166
167	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FQDN");
168	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
169	<	errf("Server error (%m)");
170	<	return -1;
167	>	if((f=fdopen(sock, "r+"))==NULL){
168	>	log_msg(LOG_CRIT, "Failed to connect to open filedescriptor on tcp connection");
169	>	close(sock);
170	>	return NULL;
171		}
172	<	if((ihost_state->my_fqdn=strdup(reply)) == NULL){
173	<	errf("strdup failed (%m)");
172	>
173	>	return f;
174	>	}
175	>
176	>	int tcp_comm(FILE *f, char *send, char **response, char *expected){
177	>
178	>	log_msg(LOG_DEBUG, "Sending %s", send);
179	>	fprintf(f, "%s\n", send);
180	>	fflush(f);
181	>	*response=fpgetline(f);
182	>	fseek(f, 0, SEEK_CUR);
183	>
184	>	if(*response!=NULL) log_msg(LOG_DEBUG, "Recieved %s", *response);
185	>
186	>	if( (*response==NULL) || (strcmp(*response, "ERROR")==0) ) return -1;
187	>
188	>	if(expected==NULL) return 0;
189	>
190	>	if((strcmp(expected, *response))==0) return 0;
191	>
192	>	log_msg(LOG_DEBUG, "Did not get expected response");
193	>	return -1;
194	>	}
195	>
196	>	int tcp_comm_strdup(FILE *f, char *send, char **response, char *expected){
197	>	if((tcp_comm(f, send, response, expected))!=0){
198		return -1;
199		}
200
201	<	reply=sock_comm(fm_fd_r, fm_fd_w, "UDPUpdateTime");
202	<	if(reply== NULL){
203	<	errf("Server error (%m)");
204	<	return -1;
201	>	*response=strdup(*response);
202	>	if (response==NULL) return -1;
203	>
204	>	return 0;
205	>	}
206	>
207	>	int ihost_getconfig(ihost_state_t *ihost_state){
208	>
209	>	FILE *tcp_con;
210	>	char *response;
211	>	char *response_ptr;
212	>
213	>	/* Keep these in case of a failure and so it can keep running on the old config */
214	>	char *file_list=NULL;
215	>	char *last_modified=NULL;
216	>	char *host_fqdn=NULL;
217	>	char *host_ip=NULL;
218	>	int udp_update_time=0;
219	>	char *server_fqdn=NULL;
220	>	int server_udp_port=0;
221	>	time_t config_ttl=0;
222	>
223	>	if((tcp_con=create_tcp_connection(ihost_state->filtermanager_host, ihost_state->filtermanager_port))==NULL){
224	>	goto error;
225		}
146	–	if (strncasecmp(reply, "ERROR", 5) != 0){
147	–	ihost_state->udp_update_time=atoi(reply);
148	–	}
226
227	<	reply=sock_comm(fm_fd_r, fm_fd_w, "TCPUpdateTime");
228	<	if(reply== NULL){
229	<	errf("Server error (%m)");
230	<	return -1;
227	>	if(ihost_state->file_list!=NULL || ihost_state->last_modified!=NULL){
228	>	if(tcp_con==NULL){
229	>	goto error;
230	>	}
231	>
232	>	if((tcp_comm(tcp_con, "CHECKCONFIG", &response, "OK"))!=0){
233	>	goto error;
234	>	}
235	>
236	>	if((tcp_comm(tcp_con, ihost_state->file_list, &response, "OK"))!=0){
237	>	goto error;
238	>	}
239	>
240	>	if((tcp_comm(tcp_con, ihost_state->last_modified, &response, "OK"))==0){
241	>	if((tcp_comm(tcp_con, "END", &response, "OK"))==0){
242	>	goto error;
243	>	}
244	>	fclose(tcp_con);
245	>	return 0;
246	>	}else{
247	>	if((strcmp(response, "EXPIRED"))!=0){
248	>	goto error;
249	>	}
250	>	}
251		}
155	–	if (strncasecmp(reply, "ERROR", 5) != 0){
156	–	ihost_state->tcp_update_time=atoi(reply);
157	–	}
252
253	<	reply=sock_comm(fm_fd_r, fm_fd_w, "ENDCONFIG");
254	<	if(reply== NULL){
255	<	errf("Server error (%m)");
256	<	return -1;
253	>	/* If we got to here, the config must of expired */
254	>
255	>	if((tcp_comm(tcp_con, "STARTCONFIG", &response, "OK"))!=0){
256	>	goto error;
257		}
258
259	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FILTER");
260	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
167	<	errf("Server error FILTER failed (%m)");
168	<	return -1;
259	>	if((tcp_comm_strdup(tcp_con, "LASTMODIFIED", &response, NULL))!=0){
260	>	goto error;
261		}
262	<	reply_ptr=strchr(reply,';');
263	<	if (reply_ptr==NULL){
264	<	errf("Incorrect data returned");
265	<	return -1;
262	>	last_modified=response;
263	>
264	>	if((tcp_comm_strdup(tcp_con, "FILELIST", &response, NULL))!=0){
265	>	goto error;
266		}
267	<	*reply_ptr='\0';
268	<	if((ihost_state->server_fqdn=strdup(reply)) == NULL){
269	<	errf("strdup failed (%m)");
270	<	return -1;
267	>	file_list=response;
268	>
269	>	if((tcp_comm_strdup(tcp_con, "FQDN", &response, NULL))!=0){
270	>	goto error;
271		}
272	<	reply=reply_ptr + 1;
273	<	reply_ptr=strchr(reply,';');
274	<	if (reply_ptr==NULL){
275	<	errf("Incorrect data returned 2");
184	<	return -1;
272	>	host_fqdn=response;
273	>
274	>	if((tcp_comm_strdup(tcp_con, "IP", &response, NULL))!=0){
275	>	goto error;
276		}
277	<	*reply_ptr='\0';
278	<	ihost_state->server_udp_port=atoi(reply);
279	<	reply=reply_ptr+1;
280	<	ihost_state->server_tcp_port=atoi(reply);
190	<	if ((ihost_state->server_tcp_port==0) || (ihost_state->server_udp_port==0)){
191	<	errf("Incorrect data returned 3 ");
192	<	return -1;
277	>	host_ip=response;
278	>
279	>	if((tcp_comm(tcp_con, "UDPUpdateTime", &response, NULL))!=0){
280	>	goto error;
281		}
282	+	udp_update_time=atoi(response);
283
284	<	reply=sock_comm(fm_fd_r, fm_fd_w, "END");
285	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){
197	<	errf("Server error (%m)");
198	<	return -1;
284	>	if((tcp_comm(tcp_con, "ConfigTTL", &response, NULL))!=0){
285	>	goto error;
286		}
287	+	config_ttl=atoi(response);
288
289	<	if(fclose(fm_fd_r) !=0){
290	<	errf("Failed to close read FD (%m)");
203	<	return -1;
289	>	if((tcp_comm(tcp_con, "ENDCONFIG", &response, NULL))!=0){
290	>	goto error;
291		}
292	<	if(fclose(fm_fd_w) !=0){
293	<	errf("Failed to close write FD (%m)");
294	<	return -1;
292	>
293	>	if((tcp_comm(tcp_con, "FILTER", &response, NULL))!=0){
294	>	goto error;
295	>	}else{
296	>	response_ptr=strchr(response,';');
297	>	if(response_ptr==NULL){
298	>	log_msg(LOG_ERR, "Incorrect data sent by server");
299	>	goto error;
300	>	}
301	>	*response_ptr='\0';
302	>	server_fqdn=strdup(response);
303	>	if(server_fqdn==NULL){
304	>	goto error;
305	>	}
306	>	response_ptr++;
307	>	if(response_ptr==NULL){
308	>	log_msg(LOG_ERR, "Incorrect data sent by server");
309	>	goto error;
310	>	}
311	>
312	>	printf("string : %s\n", response_ptr);
313	>	server_udp_port=atoi(response_ptr);
314	>
315	>	if (server_udp_port==0){
316	>	log_msg(LOG_ERR, "Incorrect data sent by server");
317	>	goto error;
318	>	}
319		}
320	+
321	+	if((tcp_comm(tcp_con, "END", &response, "OK"))!=0){
322	+	goto error;
323	+	}
324
325	+	fclose(tcp_con);
326	+
327	+	/* We have the data we need, and its all been read correctly */
328	+
329	+	/* Free the old data before pointing them to the new data. m_free copes should
330	+	* this already be NULL */
331	+	if(ihost_state->file_list!=NULL) free(ihost_state->file_list);
332	+	if(ihost_state->last_modified!=NULL) free(ihost_state->last_modified);
333	+	if(ihost_state->host_fqdn!=NULL) free(ihost_state->host_fqdn);
334	+	if(ihost_state->server_fqdn!=NULL) free(ihost_state->server_fqdn);
335	+	if(ihost_state->host_ip!=NULL) free(ihost_state->host_ip);
336	+
337	+	ihost_state->file_list=file_list;
338	+	ihost_state->last_modified=last_modified;
339	+	ihost_state->host_fqdn=host_fqdn;
340	+	ihost_state->host_ip=host_ip;
341	+	ihost_state->server_fqdn=server_fqdn;
342	+	ihost_state->server_udp_port=server_udp_port;
343	+	ihost_state->udp_update_time=udp_update_time;
344	+	ihost_state->config_ttl=config_ttl;
345	+
346	+	log_msg(LOG_DEBUG, "UDP Update time %d", udp_update_time);
347	+	log_msg(LOG_DEBUG, "Configure ttl %d", config_ttl);
348	+
349		return 0;
350	+
351	+	error:
352	+
353	+	if(file_list!=NULL) free(file_list);
354	+	if(last_modified!=NULL) free(last_modified);
355	+	if(host_fqdn!=NULL) free(host_fqdn);
356	+	if(server_fqdn!=NULL) free(server_fqdn);
357	+	if(host_ip!=NULL) free(host_ip);
358	+	fclose(tcp_con);
359	+
360	+	return -1;
361		}
362
363	<	int heartbeat(ihost_state_t *ihost_state){
364	<	struct sockaddr_in addr;
365	<	struct in_addr haddr;
366	<	int sd;
367	<	FILE *fm_fd_r, *fm_fd_w;
368	<	char *reply;
369	<	int exitcode=0;
363	>	int get_system_stats(int seq_no, ihost_state_t *ihost_state, char *xml, int size){
364	>	char tmp[size];
365	>	cpu_percent_t *cpu_percent;
366	>	mem_stat_t *mem_stats;
367	>	load_stat_t *load_stats;
368	>	user_stat_t *user_stats;
369	>	swap_stat_t *swap_stats;
370	>	general_stat_t *general_stats;
371	>	disk_stat_t *disk_stats;
372	>	diskio_stat_t *diskio_stats;
373	>	process_stat_t *process_stats;
374	>	network_stat_t *network_stats;
375	>	page_stat_t *page_stats;
376	>	int disk_entries=0;
377	>	int diskio_entries=0;
378	>	int network_entries=0;
379
380	<	if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) {
381	<	errf("Can't create AF_INET socket (%m)");
382	<	return -1;
224	<	}
380	>	int counter;
381	>	long long x;
382	>	long long y;
383
384	<	if (get_host_addr(ihost_state->server_fqdn, &haddr) != 0){
385	<	errf("Failed to resolve address %s (%m)", ihost_state->fm_host);
386	<	return -1;
229	<	}
384	>	/* Print start of the packet we want */
385	>	snprintf(xml, size, "<packet seq_no=\"%d\" machine_name=\"%s\" date=\"%ld\" type=\"data\" ip=\"%s\">", \
386	>	seq_no, ihost_state->host_fqdn, time(NULL), ihost_state->host_ip);
387
388	<	memset(&addr, 0, sizeof addr);
389	<	addr.sin_family = AF_INET;
390	<	memcpy(&addr.sin_addr, &haddr, sizeof haddr);
391	<	addr.sin_port =  htons(ihost_state->server_tcp_port);
388	>	/* Get cpu stats, check it is correct, then fill in its entry for the xml */
389	>	if((cpu_percent=cpu_percent_usage())==NULL){
390	>	log_msg(LOG_CRIT, "Failed to get cpu statistics");
391	>	}else{
392	>	snprintf(tmp, size, \
393	>	"<cpu><user>%3.2f</user><kernel>%3.2f</kernel><idle>%3.2f</idle><iowait>%3.2f</iowait><swap>%3.2f</swap></cpu>", \
394	>	cpu_percent->user, \
395	>	cpu_percent->kernel, \
396	>	cpu_percent->idle, \
397	>	cpu_percent->iowait, \
398	>	cpu_percent->swap);
399
400	<	if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
401	<	errf("Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
238	<	return -1;
239	<	}
400	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
401	>	}
402
403	<	/* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */
404	<	if ((fm_fd_r=fdopen(sd,"r")) == NULL){
405	<	errf("Failed to open stream (%m)");
406	<	return -1;
407	<	}
403	>
404	>	/*Get mem stats, and fill in xml */
405	>	if((mem_stats=get_memory_stats())==NULL){
406	>	log_msg(LOG_CRIT, "Failed to get memory statistics");
407	>	}else{
408	>	snprintf(tmp, size, \
409	>	"<memory><total>%lld</total><free>%lld</free><used>%lld</used><cache>%lld</cache></memory>", \
410	>	mem_stats->total, \
411	>	mem_stats->free, \
412	>	mem_stats->used, \
413	>	mem_stats->cache);
414	>
415	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
416	>	}
417
247	–	if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){
248	–	errf("Failed to open stream (%m)");
249	–	return -1;
250	–	}
418
419	<	reply=sock_comm(fm_fd_r, fm_fd_w, "HEARTBEAT");
420	<	if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
421	<	errf("Server error");
422	<	return -1;
423	<	}
419	>	/* Get load stats */
420	>	if((load_stats=get_load_stats())==NULL){
421	>	log_msg(LOG_CRIT, "Failed to get load statistics");
422	>	}else{
423	>	snprintf(tmp, size, \
424	>	"<load><load1>%.2lf</load1><load5>%.2lf</load5><load15>%.2lf</load15></load>", \
425	>	load_stats->min1, \
426	>	load_stats->min5, \
427	>	load_stats->min15);
428	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
429	>	}
430
258	–	reply=sock_comm(fm_fd_r, fm_fd_w, "CONFIG");
259	–	if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
260	–	errf("Server error");
261	–	return -1;
262	–	}
431
432	<	reply=sock_comm(fm_fd_r, fm_fd_w, ihost_state->files_list);
433	<	if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
434	<	errf("Server error");
435	<	return -1;
436	<	}
432	>	/* get user stats */
433	>
434	>	if((user_stats=get_user_stats())==NULL){
435	>	log_msg(LOG_CRIT, "Failed to get user statistics");
436	>	}else{
437
438	<	reply=sock_comm(fm_fd_r, fm_fd_w, ihost_state->last_modified);
439	<	if (reply==NULL) {
440	<	errf("Server error");
441	<	return -1;
442	<	}
443	<	if (strncasecmp(reply, "ERROR", 5) == 0){
276	<	/* Means the config has changed */
277	<	exitcode=RECONFIGURE_RETURN_CODE;
438	>	snprintf(tmp, size, \
439	>	"<users><list>%s</list><count>%d</count></users>", \
440	>	user_stats->name_list, \
441	>	user_stats->num_entries);
442	>
443	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
444		}
279	–	reply=sock_comm(fm_fd_r, fm_fd_w, "KEY");
280	–	if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
281	–	errf("Server error");
282	–	return -1;
283	–	}
284	–	if (ihost_state->key!=NULL) free(ihost_state->key);
285	–
286	–	if((ihost_state->key=strdup(reply)) == NULL){
287	–	errf("strdup failed (%m)");
288	–	return -1;
289	–	}
445
291	–	reply=sock_comm(fm_fd_r, fm_fd_w, "ENDHEARTBEAT");
292	–	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){
293	–	errf("Server error (%m)");
294	–	return -1;
295	–	}
446
447	<	fflush(fm_fd_r);
448	<	fflush(fm_fd_w);
447	>	/* swap stats */
448	>	if((swap_stats=get_swap_stats())==NULL){
449	>	log_msg(LOG_CRIT, "Failed to get swap statistics");
450	>	}else{
451	>	snprintf(tmp, size, \
452	>	"<swap><total>%lld</total><used>%lld</used><free>%lld</free></swap>",\
453	>	swap_stats->total, \
454	>	swap_stats->used, \
455	>	swap_stats->free);
456	>
457	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
458	>	}
459
300	–	if(fclose(fm_fd_r) !=0){
301	–	errf("Failed to close read FD (%m)");
302	–	return -1;
303	–	}
304	–	if(fclose(fm_fd_w) !=0){
305	–	errf("Failed to close write FD (%m)");
306	–	return -1;
307	–	}
460
461	<	return exitcode;
462	<	}
461	>	/* general stats */
462	>
463	>	if((general_stats=get_general_stats())==NULL){
464	>	log_msg(LOG_CRIT, "Failed to get general statistics");
465	>	}else{
466	>	snprintf(tmp, size, \
467	>	"<os><name>%s</name><release>%s</release><version>%s</version><sysname>%s</sysname><platform>%s</platform><uptime>%ld</uptime></os>", \
468	>	general_stats->os_name, \
469	>	general_stats->os_release, \
470	>	general_stats->os_version, \
471	>	general_stats->hostname, \
472	>	general_stats->platform, \
473	>	(long)general_stats->uptime);
474	>
475	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
476	>
477	>	}
478
312	–	char *stat_grab(ihost_state_t *ihost_state, int counter){
313	–	#define NUM_STATS 9
314	–	char *stats[NUM_STATS];
315	–	char *xml_data=NULL;
316	–	char *xml_data_p;
317	–	int x=0;
479
480	<	stats[0]=get_cpu_stats();
481	<	stats[1]=get_disk_stats();
482	<	stats[2]=get_load_stats();
483	<	stats[3]=get_memory_stats();
484	<	stats[4]=get_os_info();
485	<	stats[5]=get_page_stats();
486	<	stats[6]=get_process_stats();
487	<	stats[7]=get_swap_stats();
488	<	stats[8]=get_user_stats();
480	>	/* process stats */
481	>	if((process_stats=get_process_stats())==NULL){
482	>	log_msg(LOG_CRIT, "Failed to get general statistics");
483	>	}else{
484	>	snprintf(tmp, size, \
485	>	"<processes><sleeping>%d</sleeping><cpu>%d</cpu><zombie>%d</zombie><stopped>%d</stopped><total>%d</total></processes>",\
486	>	process_stats->sleeping, \
487	>	process_stats->running, \
488	>	process_stats->zombie, \
489	>	process_stats->stopped, \
490	>	process_stats->total);
491
492	<	for(;x<NUM_STATS;x++){
493	<	if(stats[x]==NULL){
494	<	return NULL;
495	<	}
496	<	if(xml_data==NULL){
497	<	if((xml_data=strf("%s", stats[x])) == NULL){
498	<	errf("str failed (%m)");
499	<	return NULL;
500	<	}
492	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
493	>
494	>	}
495	>
496	>
497	>	/* Get paging stats */
498	>	if((page_stats=get_page_stats_diff())==NULL){
499	>	log_msg(LOG_CRIT, "Failed to get paging statistics");
500	>	}else{
501	>	if(page_stats->systime!=0){
502	>	x=page_stats->pages_pagein / page_stats->systime;
503	>	y=page_stats->pages_pageout / page_stats->systime;
504		}else{
505	<	xml_data_p=xml_data;
506	<	if((xml_data=strf("%s%s", xml_data, stats[x])) == NULL){
341	<	errf("str failed (%m)");
342	<	return NULL;
343	<	}
344	<	free(xml_data_p);
505	>	x=page_stats->pages_pagein;
506	>	y=page_stats->pages_pageout;
507		}
508	<	free(stats[x]);
508	>	snprintf(tmp, size, \
509	>	"<pages><swapins>%lld</swapins><swapouts>%lld</swapouts></pages>", \
510	>	x, \
511	>	y);
512	>
513	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
514		}
515	<	xml_data_p=xml_data;
516	<	xml_data=strf("<packet seq_no=\"%d\" machine_name=\"%s\" date=\"%ld\" type=\"data\" ip=\"%s\" key=\"%s\">%s</packet>", counter, ihost_state->my_fqdn, time(NULL), "127.0.0.1", ihost_state->key, xml_data);
517	<	free(xml_data_p);
515	>
516	>
517	>	/* get diskio stats */
518
519	<	return xml_data;
520	<	}
519	>	if((diskio_stats=get_diskio_stats_diff(&diskio_entries))==NULL){
520	>	log_msg(LOG_CRIT, "Fahttp://www.cs.ukc.ac.uk/teaching/02/modules/CO/6/17/rdl/criteria.pdfiled to get diskio statistics");
521	>	}else{
522	>	strlcat(xml, "<diskio>", size);
523	>	for(counter=0;counter<diskio_entries;counter++){
524
525	<	int send_stats(ihost_state_t *ihost_state, char *data_stream){
526	<	struct sockaddr_in addr;
527	<	struct in_addr haddr;
525	>	if(diskio_stats->systime!=0){
526	>	x=diskio_stats->read_bytes / diskio_stats->systime;
527	>	y=diskio_stats->write_bytes / diskio_stats->systime;
528	>	}else{
529	>	x=diskio_stats->read_bytes;
530	>	y=diskio_stats->write_bytes;
531	>	}
532	>
533	>	snprintf(tmp, size, \
534	>	"<p%d name=\"%s\" rbytes=\"%lld\" wbytes=\"%lld\"></p%d>", \
535	>	counter, \
536	>	diskio_stats->disk_name, \
537	>	x, \
538	>	y, \
539	>	counter);
540
541	<	int sd;
542	<	size_t len;
541	>	strlcat(xml, tmp, size);
542	>	diskio_stats++;
543	>	}
544
545	<	len=strlen(data_stream);
546	<	if(len>UDP_MAX_PACKET_SIZE){
364	<	errf("Too big to send to server. Please reconfigure client and server and recompile");
365	<	exit(1);
545	>	if(strlcat(xml, "</diskio>", size) >= size) goto too_big_error;
546	>
547		}
548	+
549
550	<	if (get_host_addr(ihost_state->server_fqdn, &haddr) != 0){
551	<	errf("Failed to resolve address %s (%m)", ihost_state->fm_host);
552	<	return -1;
553	<	}
550	>	/* get networks stats */
551	>
552	>	if((network_stats=get_network_stats_diff(&network_entries))==NULL){
553	>	log_msg(LOG_CRIT, "Failed to get network statistics");
554	>	}else{
555	>	strlcat(xml, "<net>", size);
556	>	for(counter=0;counter<network_entries;counter++){
557	>	if(network_stats->systime!=0){
558	>	x=network_stats->rx / network_stats->systime;
559	>	y=network_stats->tx / network_stats->systime;
560	>	}else{
561	>	x=network_stats->rx;
562	>	y=network_stats->tx;
563	>	}
564
565	<	if((sd=socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0){
566	<	errf("failed to create UDP socket (%m)");
567	<	return -1;
565	>	snprintf(tmp, size, \
566	>	"<p%d name=\"%s\" rx=\"%lld\" tx=\"%lld\"></p%d>", \
567	>	counter, \
568	>	network_stats->interface_name, \
569	>	x, \
570	>	y, \
571	>	counter);
572	>
573	>	strlcat(xml, tmp, size);
574	>	network_stats++;
575	>	}
576	>
577	>	if(strlcat(xml, "</net>", size) >= size) goto too_big_error;
578	>
579		}
580
378	–	memset(&addr, 0, sizeof(addr));
379	–	addr.sin_family=AF_INET;
380	–	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
381	–	addr.sin_port =  htons(ihost_state->server_udp_port);
581
582	<	if((sendto(sd, data_stream, len, 0, (struct sockaddr *) &addr, sizeof(addr))) != len){
583	<	errf("Send the wrong number of bytes (%m)");
584	<	return -1;
582	>	/* get disk stats */
583	>
584	>	if((disk_stats=get_disk_stats(&disk_entries))==NULL){
585	>	log_msg(LOG_CRIT, "Failed to get disk statistics");
586	>	}else{
587	>	strlcat(xml, "<disk>", size);
588	>	for(counter=0;counter<disk_entries;counter++){
589	>	snprintf(tmp, size, \
590	>	"<p%d name=\"%s\" mount=\"%s\" fstype=\"%s\" total=\"%lld\" used=\"%lld\" avail=\"%lld\" totalinodes=\"%lld\" usedinodes=\"%lld\" freeinodes=\"%lld\"></p%d>", \
591	>	counter, \
592	>	disk_stats->device_name, \
593	>	disk_stats->mnt_point, \
594	>	disk_stats->fs_type, \
595	>	disk_stats->size, \
596	>	disk_stats->used, \
597	>	disk_stats->avail, \
598	>	disk_stats->total_inodes, \
599	>	disk_stats->used_inodes, \
600	>	disk_stats->free_inodes, \
601	>	counter);
602	>
603	>	strlcat(xml, tmp, size);
604	>
605	>	disk_stats++;
606	>	}
607	>
608	>	if(strlcat(xml, "</disk>", size) >= size) goto too_big_error;
609	>
610		}
611	+
612
613	<	close(sd);
613	>	if(strlcat(xml, "</packet>", size) >= size) goto too_big_error;
614
615	<	printf("%s\n",data_stream);
616	<	return 0;
615	>	/*If we got to here, it should of all been filled in nicely now */
616	>	return 0;
617	>
618	>	too_big_error:
619	>	log_msg(LOG_ERR, "UDP Packet is too large. Throwing away the packet");
620	>	return -1;
621		}
622
623	+
624	+
625	+	void usage(char *progname){
626	+	fprintf(stderr, "Usage %s [options] server port\n", progname);
627	+	fprintf(stderr, "Options\n");
628	+	fprintf(stderr, "  -v           Verbose mode,-vv would make even more verbose\n");
629	+	fprintf(stderr, "  -f           Foreground mode, print errors to stderr\n");
630	+	fprintf(stderr, "  -V           Print version number\n");
631	+	fprintf(stderr, "  -h           Prints this help page\n");
632	+	exit(1);
633	+	}
634	+
635		int main(int argc, char **argv){
636	+
637		ihost_state_t ihost_state;
638	<	int heartbeat_exit;
639	<	int counter=0;
640	<	long udp_time=0, tcp_time=0, stat_grab_time=0, cur_time=0;
641	<	int sleep_delay=0;
642	<	char *xml_stats;
638	>	udp_sockinfo_t udp_sockinfo;
639	>
640	>	int cmdopt;
641	>	extern int optind;
642	>	pid_t pid;
643	>	FILE *f;
644	>	int packet_num=0;
645	>	int len;
646
647	<	/* NULL'ify so i can tell if i need to free it or not */
403	<	ihost_state.fm_host=NULL;
404	<	ihost_state.my_fqdn=NULL;
405	<	ihost_state.server_fqdn=NULL;
406	<	ihost_state.last_modified=NULL;
407	<	ihost_state.files_list=NULL;
408	<	ihost_state.key=NULL;
647	>	char packet[MAX_UDP_PACKET_SIZE];
648
649	<	errf_set_progname(argv[0]);
650	<	if(argc!=3){
651	<	errf_usage("<host> <port>");
649	>	time_t cur_time, sleep_delay, udp_time=0, config_time=0;
650	>
651	>	/* Set default settings */
652	>	ihost_config.verbose=1;
653	>	ihost_config.daemon=1;
654	>	/* Set all errors to go down stderr until told otherwise */
655	>	ihost_config.log=stderr;
656	>
657	>	/* Blank ihost_state to default settings */
658	>	ihost_state.filtermanager_host=NULL;
659	>	ihost_state.host_fqdn=NULL;
660	>	ihost_state.host_ip=NULL;
661	>	ihost_state.server_fqdn=NULL;
662	>	ihost_state.file_list=NULL;
663	>	ihost_state.last_modified=NULL;
664	>
665	>	while((cmdopt=getopt(argc, argv, "vfhV")) != -1){
666	>	switch(cmdopt){
667	>	case 'v':
668	>	ihost_config.verbose++;
669	>	break;
670	>
671	>	case 'f':
672	>	/* Force syslog logging since stderr will be closed in this case */
673	>	ihost_config.daemon=0;
674	>	break;
675	>
676	>	case 'h':
677	>	usage(argv[0]);
678	>	break;
679	>
680	>	case 'V':
681	>	fprintf(stderr, "%s version %s\n", argv[0], VERSION);
682	>	break;
683	>
684	>	default:
685	>	usage(argv[0]);
686	>	exit(1);
687	>	}
688	>	}
689	>
690	>	if(argc!=optind+2){
691	>	usage(argv[0]);
692	>	exit(1);
693	>	}
694	>
695	>	ihost_state.filtermanager_host=strdup(argv[optind]);
696	>	ihost_state.filtermanager_port=atoi(argv[optind+1]);
697	>
698	>	if(gethostbyname(ihost_state.filtermanager_host)==NULL){
699	>	log_msg(LOG_CRIT, "Failed to lookup hostname. Please check settings");
700		exit(1);
701		}
702	+	if(ihost_state.filtermanager_port==0){
703	+	log_msg(LOG_ERR, "Invalid port number");
704	+	exit(1);
705	+	}
706
707	<	ihost_state.fm_host=argv[1];
708	<	ihost_state.fm_port=atoi(argv[2]);
707	>	if(ihost_config.daemon){
708	>	pid=fork();
709	>	if(pid==-1){
710	>	log_msg(LOG_CRIT, "Failed to background exiting");
711	>	exit(1);
712	>	}else if(pid!=0){
713	>	/* Parent process */
714	>	return 0;
715	>	}
716	>	/* We should now be in the background*/
717	>	if(setsid()==-1){
718	>	log_msg(LOG_CRIT, "setsid failed");
719	>	exit(1);
720	>	}
721	>
722	>	if((ihost_config.log=fopen(LOG_FILE, "a"))==NULL){
723	>	ihost_config.log=stderr;
724	>	log_msg(LOG_CRIT, "Failed to open Logfiles %s for writing", LOG_FILE);
725	>	exit(1);
726	>	}
727
728	<	if(ihost_configure(&ihost_state)!=0){
729	<	errf("configure failed");
730	<	/* Ok, ideally we prob should have 2 copies of the structure and carry on if this
731	<	happens.. But we dont :) (at the moment) */
732	<	exit(1);
728	>	fclose(stdin);
729	>	fclose(stdout);
730	>	fclose(stderr);
731	>
732	>	}
733	>
734	>	log_msg(LOG_INFO, "Starting ihost");
735	>
736	>	log_msg(LOG_DEBUG,"Writing PID FILE");
737	>
738	>	pid=getpid();
739	>
740	>	if((f=fopen(PID_FILE,"w")) == NULL){
741	>	log_msg(LOG_CRIT, "Failed to write PID file");
742	>	}else{
743	>	if((fprintf(f,"%d",(int)pid)) <= 0 ){
744	>	log_msg(LOG_CRIT, "Failed to write PID file");
745	>	}
746	>	if((fclose(f))!=0){
747	>	log_msg(LOG_CRIT, "failed to close PID file");
748	>	}
749	>	}
750	>
751	>	/* Get the initial config from the filter manager. Should this fail,
752	>	* wait, and then try again. */
753	>
754	>	get_diskio_stats_diff(&packet_num);
755	>	packet_num=0;
756	>
757	>	while(ihost_getconfig(&ihost_state)!=0){
758	>	log_msg(LOG_ERR, "Failed to get ihost config");
759	>	sleep(10);
760		}
761
762	+	printf("%s\n%d\n", ihost_state.server_fqdn, ihost_state.server_udp_port);
763	+	while((create_udp_sockinfo(&udp_sockinfo, ihost_state.server_fqdn, ihost_state.server_udp_port))!=0){
764	+	log_msg(LOG_ERR, "Failed to create udp socket");
765	+	sleep(10);
766	+	}
767	+
768	+	config_time=time(NULL)+ihost_state.config_ttl;
769	+
770	+	/* Now have config.. collect data and send as often as required */
771		for(;;){
772		cur_time=time(NULL);
428	–	if(cur_time>=tcp_time){
429	–	/*printf("sending TCP\n");*/
430	–	heartbeat_exit=heartbeat(&ihost_state);
431	–	if(heartbeat_exit==RECONFIGURE_RETURN_CODE){
432	–	/*errf("heartbeat needs to be reconfigured");*/
433	–	ihost_configure(&ihost_state);
434	–	/* So udp doesn't wait til next sending before updating */
435	–	udp_time=0;
436	–	}
437	–	if(heartbeat_exit==-1){
438	–	errf("ah crap");
439	–	exit(1);
440	–	}
441	–	tcp_time=time(NULL)+ihost_state.tcp_update_time;
442	–	}
773
774		if(cur_time>=udp_time){
775	<	/*printf("sending UDP\n");*/
776	<	stat_grab_time=time(NULL);
447	<	if((xml_stats=stat_grab(&ihost_state, counter++)) == NULL){
448	<	errf("Failed to get stats (%m)");
449	<	exit(1);
775	>	if((get_system_stats(packet_num++, &ihost_state, packet, MAX_UDP_PACKET_SIZE))!=0){
776	>	log_msg(LOG_ERR, "Failed to get system stats");
777		}
778	<	stat_grab_time=time(NULL)-stat_grab_time;
779	<	send_stats(&ihost_state, xml_stats);
780	<	free(xml_stats);
781	<	udp_time=time(NULL)+ihost_state.udp_update_time-stat_grab_time;
778	>
779	>	len=strlen(packet);
780	>	log_msg(LOG_DEBUG, "Packet size: %d\nPacket: %s\n", len, packet);
781	>
782	>	if((sendto(udp_sockinfo.sock, packet, len, 0, (struct sockaddr *) &udp_sockinfo.addr, sizeof(udp_sockinfo.addr)))!=len){
783	>	log_msg(LOG_CRIT, "Failed to send packet");
784	>	}
785	>	udp_time=cur_time+ihost_state.udp_update_time;
786	>	log_msg(LOG_DEBUG, "Next packet should be sent on %d", udp_time);
787		}
788	+
789	+	if(cur_time>=config_time){
790	+	if(ihost_getconfig(&ihost_state)!=0){
791	+	/* If we can't get the config, try again 5 minutes time */
792	+	log_msg(LOG_ERR, "Failed to get config, try again 5 minutes time");
793	+	config_time=time(NULL)+300;
794	+	}else{
795	+	close(udp_sockinfo.sock);
796
797	<	if(tcp_time<udp_time){
798	<	sleep_delay=tcp_time-time(NULL);
799	<	}else{
800	<	sleep_delay=udp_time-time(NULL);
797	>	while((create_udp_sockinfo(&udp_sockinfo, ihost_state.server_fqdn, ihost_state.server_udp_port))!=0){
798	>	log_msg(LOG_CRIT, "Failed to create udp socket");
799	>	sleep(10);
800	>	}
801	>
802	>	config_time=time(NULL)+ihost_state.config_ttl;
803	>
804	>	log_msg(LOG_DEBUG, "Config expires on %d\n", ihost_state.config_ttl);
805	>	}
806		}
807
808	<	/*printf("tcp epoc: %ld \t udp epoc: %ld\ntime:%ld \tsleeping: %d\n", tcp_time, udp_time, time(NULL), sleep_delay);*/
808	>	sleep_delay=udp_time-time(NULL);
809	>	log_msg(LOG_DEBUG, "Sleeping for %d", sleep_delay);
810		if(sleep_delay>0) sleep(sleep_delay);
811	<	}
812	<	return 0;
811	>	}
812	>
813	>	return(0);
814		}
468	–

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