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

Comparing projects/cms/source/ihost/ihost.c (file contents):
Revision 1.6 by pajs, Sun May 12 17:33:21 2002 UTC vs.
Revision 1.9 by pajs, Fri May 17 11:21:17 2002 UTC

#	Line 4 | Line 4
4		#include <unistd.h>
5		#include <syslog.h>
6		#include <netinet/in.h>
7	<	#include <ukcprog.h>
7	>	#include "ukcprog.h"
8		#include <netdb.h>
9		#include <strings.h>
10	+	#include "statgrab.h"
11
12		#define RECONFIGURE_RETURN_CODE 2
13	+	#define UDP_MAX_PACKET_SIZE 8192
14
15		typedef struct{
16		int fm_port;
#	Line 26 | Line 28 | typedef struct{
28
29		}ihost_state_t;
30
31	<	char* sock_comm(FILE *f_r, FILE *f_w, char* sendString){
31	>	char* sock_comm(FILE *f_r, FILE *f_w, char *sendString){
32		char *reply;
33	<	fprintf(f_w, "%s", sendString);
33	>	fprintf(f_w, "%s\n", sendString);
34		fflush(f_w);
35		reply=fpgetline(f_r);
36		/* Returns pointer to static buffer */
#	Line 59 | Line 61 | int ihost_configure(ihost_state_t *ihost_state){
61		return -1;
62		}
63
64	<	memset((char *)&addr, 0, sizeof addr);
64	>	memset(&addr, 0, sizeof addr);
65		addr.sin_family = AF_INET;
66	<	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
66	>	memcpy(&addr.sin_addr, &haddr, sizeof haddr);
67		addr.sin_port =  htons(ihost_state->fm_port);
68
69		if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
#	Line 71 | Line 73 | int ihost_configure(ihost_state_t *ihost_state){
73
74		/* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */
75		if ((fm_fd_r=fdopen(sd,"r")) == NULL){
76	<	errf("Failed to open stream (%m)");
76	>	errf("Failed to open read stream (%m)");
77		return -1;
78		}
79
80		if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){
81	<	errf("Failed to open stream (%m)");
81	>	errf("Failed to open write stream (%m)");
82		return -1;
83		}
84
85	<	reply=sock_comm(fm_fd_r, fm_fd_w, "STARTCONFIG\n");
85	>	reply=sock_comm(fm_fd_r, fm_fd_w, "STARTCONFIG");
86		if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
87		errf("Server error");
88		return -1;
89		}
90
91	<	reply=sock_comm(fm_fd_r, fm_fd_w, "LASTMODIFIED\n");
91	>	reply=sock_comm(fm_fd_r, fm_fd_w, "LASTMODIFIED");
92		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){
93		errf("Server error (%m)");
94		return -1;
95		}
96	<	if((ihost_state->last_modified=malloc((strlen(reply))+1)) == NULL){
97	<	errf("malloc failed (%m)");
96	>	if((ihost_state->last_modified=strdup(reply)) == NULL){
97	>	errf("strdup failed (%m)");
98		return -1;
99		}
98	–	strcpy(ihost_state->last_modified, reply);
99	–	ihost_state->last_modified[(strlen(ihost_state->last_modified))]='\n';
100
101	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FILELIST\n");
101	>	reply=sock_comm(fm_fd_r, fm_fd_w, "FILELIST");
102		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){
103		errf("Server error (%m)");
104		return -1;
105		}
106	<	if((ihost_state->files_list=malloc((strlen(reply))+1)) == NULL){
107	<	errf("malloc failed (%m)");
106	>	if((ihost_state->files_list=strdup(reply)) == NULL){
107	>	errf("strdup failed (%m)");
108		return -1;
109		}
110	–	strcpy(ihost_state->files_list, reply);
111	–	ihost_state->files_list[(strlen(ihost_state->files_list))]='\n';
110
111	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FQDN\n");
111	>	reply=sock_comm(fm_fd_r, fm_fd_w, "FQDN");
112		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
113		errf("Server error (%m)");
114		return -1;
#	Line 120 | Line 118 | int ihost_configure(ihost_state_t *ihost_state){
118		return -1;
119		}
120
121	<	reply=sock_comm(fm_fd_r, fm_fd_w, "UDPUpdateTime\n");
121	>	reply=sock_comm(fm_fd_r, fm_fd_w, "UDPUpdateTime");
122		if(reply== NULL){
123		errf("Server error (%m)");
124		return -1;
#	Line 129 | Line 127 | int ihost_configure(ihost_state_t *ihost_state){
127		ihost_state->udp_update_time=atoi(reply);
128		}
129
130	<	reply=sock_comm(fm_fd_r, fm_fd_w, "TCPUpdateTime\n");
130	>	reply=sock_comm(fm_fd_r, fm_fd_w, "TCPUpdateTime");
131		if(reply== NULL){
132		errf("Server error (%m)");
133		return -1;
#	Line 138 | Line 136 | int ihost_configure(ihost_state_t *ihost_state){
136		ihost_state->tcp_update_time=atoi(reply);
137		}
138
139	<	reply=sock_comm(fm_fd_r, fm_fd_w, "ENDCONFIG\n");
139	>	reply=sock_comm(fm_fd_r, fm_fd_w, "ENDCONFIG");
140		if(reply== NULL){
141		errf("Server error (%m)");
142		return -1;
143		}
144
145	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FILTER\n");
145	>	reply=sock_comm(fm_fd_r, fm_fd_w, "FILTER");
146		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
147	<	errf("Server error (%m)");
147	>	errf("Server error FILTER failed (%m)");
148		return -1;
149		}
150		reply_ptr=strchr(reply,';');
#	Line 159 | Line 157 | int ihost_configure(ihost_state_t *ihost_state){
157		errf("strdup failed (%m)");
158		return -1;
159		}
160	<	reply=++reply_ptr;
160	>	reply=reply_ptr + 1;
161		reply_ptr=strchr(reply,';');
162		if (reply_ptr==NULL){
163		errf("Incorrect data returned 2");
#	Line 167 | Line 165 | int ihost_configure(ihost_state_t *ihost_state){
165		}
166		*reply_ptr='\0';
167		ihost_state->server_udp_port=atoi(reply);
168	<	reply=++reply_ptr;
168	>	reply=reply_ptr+1;
169		ihost_state->server_tcp_port=atoi(reply);
170		if ((ihost_state->server_tcp_port==0) || (ihost_state->server_udp_port==0)){
171		errf("Incorrect data returned 3 ");
172		return -1;
173		}
174
175	<	reply=sock_comm(fm_fd_r, fm_fd_w, "END\n");
175	>	reply=sock_comm(fm_fd_r, fm_fd_w, "END");
176		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){
177		errf("Server error (%m)");
178		return -1;
179		}
180
181		if(fclose(fm_fd_r) !=0){
182	<	errf("Failed to close FD (%m)");
182	>	errf("Failed to close read FD (%m)");
183		return -1;
184		}
185		if(fclose(fm_fd_w) !=0){
186	<	errf("Failed to close FD (%m)");
186	>	errf("Failed to close write FD (%m)");
187		return -1;
188		}
189
#	Line 210 | Line 208 | int heartbeat(ihost_state_t *ihost_state){
208		return -1;
209		}
210
211	<	memset((char *)&addr, 0, sizeof addr);
211	>	memset(&addr, 0, sizeof addr);
212		addr.sin_family = AF_INET;
213	<	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
213	>	memcpy(&addr.sin_addr, &haddr, sizeof haddr);
214		addr.sin_port =  htons(ihost_state->server_tcp_port);
215
216		if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
#	Line 231 | Line 229 | int heartbeat(ihost_state_t *ihost_state){
229		return -1;
230		}
231
232	<	reply=sock_comm(fm_fd_r, fm_fd_w, "HEARTBEAT\n");
232	>	reply=sock_comm(fm_fd_r, fm_fd_w, "HEARTBEAT");
233		if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
234		errf("Server error");
235		return -1;
236		}
237	<	if (ihost_state->fm_host!=NULL) free(ihost_state->fm_host);
238	<	reply=sock_comm(fm_fd_r, fm_fd_w, "CONFIG\n");
237	>
238	>	reply=sock_comm(fm_fd_r, fm_fd_w, "CONFIG");
239		if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
240		errf("Server error");
241		return -1;
242		}
243
246	–	printf("filelist %s\n",ihost_state->files_list);
244		reply=sock_comm(fm_fd_r, fm_fd_w, ihost_state->files_list);
245		if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
246		errf("Server error");
#	Line 259 | Line 256 | int heartbeat(ihost_state_t *ihost_state){
256		/* Means the config has changed */
257		exitcode=RECONFIGURE_RETURN_CODE;
258		}
259	<	reply=sock_comm(fm_fd_r, fm_fd_w, "KEY\n");
259	>	reply=sock_comm(fm_fd_r, fm_fd_w, "KEY");
260		if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
261		errf("Server error");
262		return -1;
263		}
264		if (ihost_state->key!=NULL) free(ihost_state->key);
265
266	<	if((ihost_state->key=malloc(strlen(reply)+1)) == NULL){
267	<	errf("malloc failed (%m)");
266	>	if((ihost_state->key=strdup(reply)) == NULL){
267	>	errf("strdup failed (%m)");
268		return -1;
269		}
273	–	strcpy(ihost_state->key, reply);
274	–	ihost_state->key[(strlen(ihost_state->key))]='\n';
270
271	<	reply=sock_comm(fm_fd_r, fm_fd_w, "ENDHEARTBEAT\n");
271	>	reply=sock_comm(fm_fd_r, fm_fd_w, "ENDHEARTBEAT");
272		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){
273		errf("Server error (%m)");
274		return -1;
275		}
276
277		if(fclose(fm_fd_r) !=0){
278	<	errf("Failed to close FD (%m)");
278	>	errf("Failed to close read FD (%m)");
279		return -1;
280		}
281		if(fclose(fm_fd_w) !=0){
282	<	errf("Failed to close FD (%m)");
282	>	errf("Failed to close write FD (%m)");
283		return -1;
284		}
285
286		return exitcode;
287		}
288
289	+	char *stat_grab(ihost_state_t *ihost_state, int counter){
290	+	#define NUM_STATS 9
291	+	char *stats[NUM_STATS];
292	+	char *xml_data=NULL;
293	+	char *xml_data_p;
294	+	int x=0;
295	+
296	+	stats[0]=get_cpu_stats();
297	+	stats[1]=get_disk_stats();
298	+	stats[2]=get_load_stats();
299	+	stats[3]=get_memory_stats();
300	+	stats[4]=get_os_info();
301	+	stats[5]=get_page_stats();
302	+	stats[6]=get_process_stats();
303	+	stats[7]=get_swap_stats();
304	+	stats[8]=get_user_stats();
305
306	+	for(;x<NUM_STATS;x++){
307	+	if(stats[x]==NULL){
308	+	return NULL;
309	+	}
310	+	if(xml_data==NULL){
311	+	if((xml_data=strf("%s", stats[x])) == NULL){
312	+	errf("str failed (%m)");
313	+	return NULL;
314	+	}
315	+	}else{
316	+	xml_data_p=xml_data;
317	+	if((xml_data=strf("%s%s", xml_data, stats[x])) == NULL){
318	+	errf("str failed (%m)");
319	+	return NULL;
320	+	}
321	+	free(xml_data_p);
322	+	}
323	+	free(stats[x]);
324	+	}
325	+	xml_data_p=xml_data;
326	+	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);
327	+	free(xml_data_p);
328	+
329	+	return xml_data;
330	+	}
331	+
332	+	int send_stats(ihost_state_t *ihost_state, char *data_stream){
333	+	struct sockaddr_in addr;
334	+	struct in_addr haddr;
335	+
336	+	int sd;
337	+	size_t len;
338	+
339	+	len=strlen(data_stream);
340	+	if(len>UDP_MAX_PACKET_SIZE){
341	+	errf("Too big to send to server. Please reconfigure client and server and recompile");
342	+	exit(1);
343	+	}
344	+
345	+	if (get_host_addr(ihost_state->server_fqdn, &haddr) != 0){
346	+	errf("Failed to resolve address %s (%m)", ihost_state->fm_host);
347	+	return -1;
348	+	}
349	+
350	+	if((sd=socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0){
351	+	errf("failed to create UDP socket (%m)");
352	+	return -1;
353	+	}
354	+
355	+	memset(&addr, 0, sizeof(addr));
356	+	addr.sin_family=AF_INET;
357	+	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
358	+	addr.sin_port =  htons(ihost_state->server_udp_port);
359	+
360	+	if((sendto(sd, data_stream, len, 0, (struct sockaddr *) &addr, sizeof(addr))) != len){
361	+	errf("Send the wrong number of bytes (%m)");
362	+	return -1;
363	+	}
364	+
365	+	return 0;
366	+	}
367	+
368		int main(int argc, char **argv){
369		ihost_state_t ihost_state;
370		int heartbeat_exit;
371		int counter=0;
372	+	long udp_time=0, tcp_time=0, cur_time=0;
373	+	int sleep_delay=0;
374	+	char *xml_stats;
375
300	–
376		/* NULL'ify so i can tell if i need to free it or not */
377		ihost_state.fm_host=NULL;
378		ihost_state.my_fqdn=NULL;
#	Line 322 | Line 397 | int main(int argc, char **argv){
397		exit(1);
398		}
399
400	<	while(TRUE){
400	>	/* get starting stats */
401	>	if((heartbeat(&ihost_state)) == -1){
402	>	errf("inital heartbeat failed (%m)");
403	>	exit(1);
404	>	}
405
406	<	heartbeat_exit=heartbeat(&ihost_state);
407	<	if(heartbeat_exit==RECONFIGURE_RETURN_CODE){
408	<	errf("heartbeat needs to be reconfigured");
409	<	ihost_configure(&ihost_state);
406	>
407	>	if((xml_stats=stat_grab(&ihost_state, counter)) == NULL){
408	>	errf("Failed to get stats (%m)");
409	>	exit(1);
410	>	}
411	>
412	>
413	>	for(;;){
414	>	cur_time=time(NULL);
415	>	if(cur_time>=tcp_time){
416	>	heartbeat_exit=heartbeat(&ihost_state);
417	>	if(heartbeat_exit==RECONFIGURE_RETURN_CODE){
418	>	errf("heartbeat needs to be reconfigured");
419	>	ihost_configure(&ihost_state);
420	>	/* So udp doesn't wait til next sending before updating */
421	>	udp_time=0;
422	>	}
423	>	if(heartbeat_exit==-1){
424	>	errf("ah crap");
425	>	exit(1);
426	>	}
427	>	tcp_time=time(NULL)+ihost_state.tcp_update_time;
428		}
429	<	if(heartbeat_exit==-1){
430	<	errf("ah crap");
431	<	exit(1);
432	<	}
433	<	printf("Count : %d\n",counter++);
434	<	printf("waiting %d\n",ihost_state.tcp_update_time);
435	<	sleep(ihost_state.tcp_update_time);
429	>	if(cur_time>=udp_time){
430	>	send_stats(&ihost_state, xml_stats);
431	>	free(xml_stats);
432	>	if((xml_stats=stat_grab(&ihost_state, counter)) == NULL){
433	>	errf("Failed to get stats (%m)");
434	>	exit(1);
435	>	}
436	>	udp_time=time(NULL)+ihost_state.udp_update_time;
437	>	}
438	>	if(tcp_time>udp_time){
439	>	sleep_delay=time(NULL)-tcp_time;
440	>	}else{
441	>	sleep_delay=time(NULL)-udp_time;
442	>	}
443	>	sleep(sleep_delay);
444		}
445		return 0;
446		}

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