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root/i-scream/projects/libstatgrab/src/libstatgrab/network_stats.c

Comparing projects/libstatgrab/src/libstatgrab/network_stats.c (file contents):
Revision 1.17 by pajs, Tue Aug 26 22:34:49 2003 UTC vs.
Revision 1.26 by pajs, Sun Jan 25 20:13:57 2004 UTC

#	Line 1 | Line 1
1	<	/*
1	>	/*
2		* i-scream central monitoring system
3		* http://www.i-scream.org
4	<	* Copyright (C) 2000-2003 i-scream
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.
6	>	* This library is free software; you can redistribute it and/or
7	>	* modify it under the terms of the GNU Lesser General Public
8	>	* License as published by the Free Software Foundation; either
9	>	* version 2.1 of the License, or (at your option) any later version.
10		*
11	<	* This program is distributed in the hope that it will be useful,
11	>	* This library 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.
13	>	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14	>	* Lesser 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.
16	>	* You should have received a copy of the GNU Lesser General Public
17	>	* License along with this library; if not, write to the Free Software
18	>	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19	>	* 02111-1307 USA
20	>	*
21	>	* $Id$
22		*/
23
24		#ifdef HAVE_CONFIG_H
#	Line 36 | Line 39
39		#include <regex.h>
40		#include "tools.h"
41		#endif
42	<	#ifdef FREEBSD
42	>	#ifdef ALLBSD
43		#include <sys/types.h>
44		#include <sys/socket.h>
45		#include <ifaddrs.h>
46		#include <net/if.h>
47	+	#include <net/if_media.h>
48	+	#include <sys/ioctl.h>
49		#endif
50
51		static network_stat_t *network_stats=NULL;
#	Line 101 | Line 106 | network_stat_t *get_network_stats(int *entries){
106		regex_t regex;
107		regmatch_t line_match[4];
108		#endif
109	<	#ifdef FREEBSD
109	>	#ifdef ALLBSD
110		struct ifaddrs *net, *net_ptr;
111		struct if_data *net_data;
112		#endif
113
114	<	#ifdef FREEBSD
114	>	#ifdef ALLBSD
115		if(getifaddrs(&net) != 0){
116		return NULL;
117		}
#	Line 224 | Line 229 | network_stat_t *get_network_stats(int *entries){
229		regfree(&regex);
230
231		#endif
232	+
233	+	#ifdef CYGWIN
234	+	return NULL;
235	+	#endif
236	+
237		*entries=interfaces;
238
239		return network_stats;
#	Line 231 | Line 241 | network_stat_t *get_network_stats(int *entries){
241
242		long long transfer_diff(long long new, long long old){
243		#if defined(SOL7) || defined(LINUX) || defined(FREEBSD)
244	<	#define MAXVAL 4294967296
244	>	#define MAXVAL 4294967296LL
245		#else
246	<	#define MAXVAL 18446744073709551616
246	>	#define MAXVAL 18446744073709551616LL
247		#endif
248		long long result;
249		if(new>=old){
#	Line 246 | Line 256 | long long transfer_diff(long long new, long long old){
256
257		}
258
259	<	network_stat_t *get_network_stats_diff(int *entries){
260	<	static network_stat_t *network_stats_diff=NULL;
261	<	static int sizeof_net_stats_diff=0;
262	<	network_stat_t *network_stats_ptr, *network_stats_diff_ptr;
263	<	int ifaces, x, y;
259	>	network_stat_t *get_network_stats_diff(int *entries) {
260	>	static network_stat_t *diff = NULL;
261	>	static int diff_count = 0;
262	>	network_stat_t *src, *dest;
263	>	int i, j, new_count;
264
265	<	if(network_stats==NULL){
266	<	network_stats_ptr=get_network_stats(&ifaces);
267	<	*entries=ifaces;
258	<	return network_stats_ptr;
265	>	if (network_stats == NULL) {
266	>	/* No previous stats, so we can't calculate a difference. */
267	>	return get_network_stats(entries);
268		}
269
270	<	network_stats_diff=network_stat_malloc(interfaces, &sizeof_net_stats_diff, network_stats_diff);
271	<	if(network_stats_diff==NULL){
270	>	/* Resize the results array to match the previous stats. */
271	>	diff = network_stat_malloc(interfaces, &diff_count, diff);
272	>	if (diff == NULL) {
273		return NULL;
274		}
275
276	<	network_stats_ptr=network_stats;
277	<	network_stats_diff_ptr=network_stats_diff;
276	>	/* Copy the previous stats into the result. */
277	>	for (i = 0; i < diff_count; i++) {
278	>	src = &network_stats[i];
279	>	dest = &diff[i];
280
281	<	for(ifaces=0;ifaces<interfaces;ifaces++){
282	<	if(network_stats_diff_ptr->interface_name!=NULL){
271	<	free(network_stats_diff_ptr->interface_name);
281	>	if (dest->interface_name != NULL) {
282	>	free(dest->interface_name);
283		}
284	<	network_stats_diff_ptr->interface_name=strdup(network_stats_ptr->interface_name);
285	<	network_stats_diff_ptr->tx=network_stats_ptr->tx;
286	<	network_stats_diff_ptr->rx=network_stats_ptr->rx;
287	<	network_stats_diff_ptr->systime=network_stats->systime;
284	>	dest->interface_name = strdup(src->interface_name);
285	>	dest->rx = src->rx;
286	>	dest->tx = src->tx;
287	>	dest->systime = src->systime;
288	>	}
289
290	<	network_stats_ptr++;
291	<	network_stats_diff_ptr++;
290	>	/* Get a new set of stats. */
291	>	if (get_network_stats(&new_count) == NULL) {
292	>	return NULL;
293		}
281	–	network_stats_ptr=get_network_stats(&ifaces);
282	–	network_stats_diff_ptr=network_stats_diff;
294
295	<	for(x=0;x<sizeof_net_stats_diff;x++){
295	>	/* For each previous stat... */
296	>	for (i = 0; i < diff_count; i++) {
297	>	dest = &diff[i];
298
299	<	if((strcmp(network_stats_diff_ptr->interface_name, network_stats_ptr->interface_name))==0){
300	<	network_stats_diff_ptr->tx = transfer_diff(network_stats_ptr->tx, network_stats_diff_ptr->tx);
301	<	network_stats_diff_ptr->rx = transfer_diff(network_stats_ptr->rx, network_stats_diff_ptr->rx);
302	<	network_stats_diff_ptr->systime = network_stats_ptr->systime - network_stats_diff_ptr->systime;
303	<	}else{
304	<
305	<	network_stats_ptr=network_stats;
306	<	for(y=0;y<ifaces;y++){
307	<	if((strcmp(network_stats_diff_ptr->interface_name, network_stats_ptr->interface_name))==0){
308	<	network_stats_diff_ptr->tx = transfer_diff(network_stats_ptr->tx, network_stats_diff_ptr->tx);
309	<	network_stats_diff_ptr->rx = transfer_diff(network_stats_ptr->rx, network_stats_diff_ptr->rx);
310	<	network_stats_diff_ptr->systime = network_stats_ptr->systime - network_stats_diff_ptr->systime;
311	<	break;
299	<	}
299	>	/* ... find the corresponding new stat ... */
300	>	for (j = 0; j < new_count; j++) {
301	>	/* Try the new stat in the same position first,
302	>	since that's most likely to be it. */
303	>	src = &network_stats[(i + j) % new_count];
304	>	if (strcmp(src->interface_name, dest->interface_name) == 0) {
305	>	break;
306	>	}
307	>	}
308	>	if (j == new_count) {
309	>	/* No match found. */
310	>	continue;
311	>	}
312
313	<	network_stats_ptr++;
314	<	}
313	>	/* ... and subtract the previous stat from it to get the
314	>	difference. */
315	>	dest->rx = transfer_diff(src->rx, dest->rx);
316	>	dest->tx = transfer_diff(src->tx, dest->tx);
317	>	dest->systime = src->systime - dest->systime;
318	>	}
319	>
320	>	*entries = diff_count;
321	>	return diff;
322	>	}
323	>	/* NETWORK INTERFACE STATS */
324	>
325	>	void network_iface_stat_init(int start, int end, network_iface_stat_t *net_stats){
326	>
327	>	for(net_stats+=start; start<end; start++){
328	>	net_stats->interface_name=NULL;
329	>	net_stats->speed=0;
330	>	net_stats->dup=NO_DUPLEX;
331	>	net_stats++;
332	>	}
333	>	}
334	>
335	>	network_iface_stat_t *network_iface_stat_malloc(int needed_entries, int *cur_entries, network_iface_stat_t *net_stats){
336	>
337	>	if(net_stats==NULL){
338	>
339	>	if((net_stats=malloc(needed_entries * sizeof(network_iface_stat_t)))==NULL){
340	>	return NULL;
341		}
342	+	network_iface_stat_init(0, needed_entries, net_stats);
343	+	*cur_entries=needed_entries;
344
345	<	network_stats_ptr++;
306	<	network_stats_diff_ptr++;
345	>	return net_stats;
346		}
347
348	<	*entries=sizeof_net_stats_diff;
349	<	return network_stats_diff;
350	<	}
348	>
349	>	if(*cur_entries<needed_entries){
350	>	net_stats=realloc(net_stats, (sizeof(network_iface_stat_t)*needed_entries));
351	>	if(net_stats==NULL){
352	>	return NULL;
353	>	}
354	>	network_iface_stat_init(*cur_entries, needed_entries, net_stats);
355	>	*cur_entries=needed_entries;
356	>	}
357	>
358	>	return net_stats;
359	>	}
360	>
361	>	network_iface_stat_t *get_network_iface_stats(int *entries){
362	>	static network_iface_stat_t *network_iface_stats;
363	>	network_iface_stat_t *network_iface_stat_ptr;
364	>	static int sizeof_network_iface_stats=0;
365	>	static int ifaces;
366	>
367	>	#ifdef SOLARIS
368	>	kstat_ctl_t *kc;
369	>	kstat_t *ksp;
370	>	kstat_named_t *knp;
371	>	#endif
372	>	#ifdef ALLBSD
373	>	struct ifaddrs *net, *net_ptr;
374	>	struct ifmediareq ifmed;
375	>	int s;
376	>	int x;
377	>	#endif
378	>
379	>	ifaces = 0;
380	>	#ifdef ALLBSD
381	>	if(getifaddrs(&net) != 0){
382	>	return NULL;
383	>	}
384	>
385	>	if ((s = socket(AF_INET, SOCK_DGRAM, 0)) == NULL) return NULL;
386	>
387	>	for(net_ptr=net; net_ptr!=NULL; net_ptr=net_ptr->ifa_next){
388	>	if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
389	>	network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
390	>	if(network_iface_stats==NULL){
391	>	return NULL;
392	>	}
393	>	network_iface_stat_ptr = network_iface_stats + ifaces;
394	>
395	>	memset(&ifmed, 0, sizeof(struct ifmediareq));
396	>	strlcpy(ifmed.ifm_name, net_ptr->ifa_name, sizeof(ifmed.ifm_name));
397	>	if(ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmed) == -1){
398	>	continue;
399	>	}
400	>
401	>	/* We may need to change this if we start doing wireless devices too */
402	>	if( (ifmed.ifm_active | IFM_ETHER) != ifmed.ifm_active ){
403	>	/* Not a ETHER device */
404	>	continue;
405	>	}
406	>
407	>	if(network_iface_stat_ptr->interface_name != NULL) free(network_iface_stat_ptr->interface_name);
408	>	network_iface_stat_ptr->interface_name = strdup(net_ptr->ifa_name);
409	>	if(network_iface_stat_ptr->interface_name == NULL) return NULL;
410	>
411	>	/* Only intrested in the first 4 bits)  - Assuming only ETHER devices */
412	>	x = ifmed.ifm_active & 0x0f;
413	>	switch(x){
414	>	/* 10 Mbit connections. Speedy :) */
415	>	case(IFM_10_T):
416	>	case(IFM_10_2):
417	>	case(IFM_10_5):
418	>	case(IFM_10_STP):
419	>	case(IFM_10_FL):
420	>	network_iface_stat_ptr->speed = 10;
421	>	break;
422	>	/* 100 Mbit conneections */
423	>	case(IFM_100_TX):
424	>	case(IFM_100_FX):
425	>	case(IFM_100_T4):
426	>	case(IFM_100_VG):
427	>	case(IFM_100_T2):
428	>	network_iface_stat_ptr->speed = 100;
429	>	break;
430	>	/* 1000 Mbit connections */
431	>	case(IFM_1000_SX):
432	>	case(IFM_1000_LX):
433	>	case(IFM_1000_CX):
434	>	case(IFM_1000_TX):
435	>	network_iface_stat_ptr->speed = 1000;
436	>	break;
437	>	/* We don't know what it is */
438	>	default:
439	>	network_iface_stat_ptr->speed = 0;
440	>	break;
441	>	}
442	>
443	>	if( (ifmed.ifm_active | IFM_FDX) == ifmed.ifm_active ){
444	>	network_iface_stat_ptr->dup = FULL_DUPLEX;
445	>	}else if( (ifmed.ifm_active | IFM_HDX) == ifmed.ifm_active ){
446	>	network_iface_stat_ptr->dup = HALF_DUPLEX;
447	>	}else{
448	>	network_iface_stat_ptr->dup = NO_DUPLEX;
449	>	}
450	>	ifaces++;
451	>	}
452	>	freeifaddrs(net);
453	>	#endif
454	>
455	>	#ifdef SOLARIS
456	>	if ((kc = kstat_open()) == NULL) {
457	>	return NULL;
458	>	}
459	>
460	>	for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
461	>	if (!strcmp(ksp->ks_class, "net")) {
462	>	kstat_read(kc, ksp, NULL);
463	>	if((knp=kstat_data_lookup(ksp, "ifspeed"))==NULL){
464	>	/* Not a network interface, so skip to the next entry */
465	>	continue;
466	>	}
467	>	network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
468	>	if(network_iface_stats==NULL){
469	>	return NULL;
470	>	}
471	>	network_iface_stat_ptr = network_iface_stats + ifaces;
472	>	network_iface_stat_ptr->speed = knp->value.ui64 / (1000*1000);
473	>
474	>	if((knp=kstat_data_lookup(ksp, "link_duplex"))==NULL){
475	>	/* Not a network interface, so skip to the next entry */
476	>	continue;
477	>	}
478	>
479	>	if(knp->value.ui64 == 0){
480	>	network_iface_stat_ptr->dup = FULL_DUPLEX;
481	>	}else{
482	>	network_iface_stat_ptr->dup = HALF_DUPLEX;
483	>	}
484	>
485	>	if(network_iface_stat_ptr->interface_name != NULL) free(network_iface_stat_ptr->interface_name);
486	>	network_iface_stat_ptr->interface_name = strdup(ksp->ks_name);
487	>	if(network_iface_stat_ptr->interface_name == NULL) return NULL;
488	>	ifaces++;
489	>	}
490	>	}
491	>	kstat_close(kc);
492	>
493	>	#endif
494	>	*entries = ifaces;
495	>	return network_iface_stats;
496	>	}
497

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