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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 1.9 by pajs, Wed Mar 12 16:15:48 2003 UTC vs.
Revision 1.40 by ats, Sat Feb 14 00:47:24 2004 UTC

#	Line 1 | Line 1
1	<	/*
1	>	/*
2		* i-scream central monitoring system
3	<	* http://www.i-scream.org.uk
4	<	* Copyright (C) 2000-2002 i-scream
3	>	* http://www.i-scream.org
4	>	* Copyright (C) 2000-2004 i-scream
5		*
6	<	* This program is free software; you can redistribute it and/or
7	<	* modify it under the terms of the GNU General Public License
8	<	* as published by the Free Software Foundation; either version 2
9	<	* of the License, or (at your option) any later version.
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 25 | Line 28
28		#include <stdlib.h>
29		#include <string.h>
30		#include "statgrab.h"
31	<	#include "time.h"
31	>	#include <time.h>
32		#ifdef SOLARIS
33		#include <kstat.h>
34		#include <sys/sysinfo.h>
#	Line 34 | Line 37
37		#include <stdio.h>
38		#include <sys/types.h>
39		#include <regex.h>
40	+	#include <sys/ioctl.h>
41	+	#include <sys/socket.h>
42	+	#include <net/if.h>
43	+	#include <ctype.h>
44		#include "tools.h"
45	+	/* Stuff which could be defined by defining KERNEL, but
46	+	* that would be a bad idea, so we'll just declare it here
47	+	*/
48	+	typedef __uint8_t u8;
49	+	typedef __uint16_t u16;
50	+	typedef __uint32_t u32;
51	+	#include <linux/ethtool.h>
52	+	#include <linux/sockios.h>
53	+	#include <unistd.h>
54		#endif
55	+	#ifdef ALLBSD
56	+	#include <sys/types.h>
57	+	#include <sys/socket.h>
58	+	#include <ifaddrs.h>
59	+	#include <net/if.h>
60	+	#include <net/if_media.h>
61	+	#include <sys/ioctl.h>
62	+	#endif
63
64		static network_stat_t *network_stats=NULL;
65		static int interfaces=0;
#	Line 90 | Line 114 | network_stat_t *get_network_stats(int *entries){
114
115		#ifdef LINUX
116		FILE *f;
117	<	/* Horrible big enough, but it should be quite easily */
117	>	/* Horrible big enough, but it should be easily big enough */
118		char line[8096];
119		regex_t regex;
120		regmatch_t line_match[4];
121		#endif
122	+	#ifdef ALLBSD
123	+	struct ifaddrs *net, *net_ptr;
124	+	struct if_data *net_data;
125	+	#endif
126
127	+	#ifdef ALLBSD
128	+	if(getifaddrs(&net) != 0){
129	+	return NULL;
130	+	}
131	+
132	+	interfaces=0;
133	+
134	+	for(net_ptr=net;net_ptr!=NULL;net_ptr=net_ptr->ifa_next){
135	+	if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
136	+	network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats);
137	+	if(network_stats==NULL){
138	+	return NULL;
139	+	}
140	+	network_stat_ptr=network_stats+interfaces;
141	+
142	+	if(network_stat_ptr->interface_name!=NULL) free(network_stat_ptr->interface_name);
143	+	network_stat_ptr->interface_name=strdup(net_ptr->ifa_name);
144	+	if(network_stat_ptr->interface_name==NULL) return NULL;
145	+	net_data=(struct if_data *)net_ptr->ifa_data;
146	+	network_stat_ptr->rx=net_data->ifi_ibytes;
147	+	network_stat_ptr->tx=net_data->ifi_obytes;
148	+	network_stat_ptr->systime=time(NULL);
149	+	interfaces++;
150	+	}
151	+	freeifaddrs(net);
152	+	#endif
153	+
154		#ifdef SOLARIS
155		if ((kc = kstat_open()) == NULL) {
156		return NULL;
#	Line 183 | Line 238 | network_stat_t *get_network_stats(int *entries){
238
239		interfaces++;
240		}
241	+	fclose(f);
242	+	regfree(&regex);
243
244		#endif
245	+
246	+	#ifdef CYGWIN
247	+	return NULL;
248	+	#endif
249	+
250		*entries=interfaces;
251
252		return network_stats;
253		}
254
255		long long transfer_diff(long long new, long long old){
256	<	#ifdef SOL7
257	<	#define MAXVAL 4294967296
256	>	#if defined(SOL7) || defined(LINUX) || defined(FREEBSD)
257	>	#define MAXVAL 4294967296LL
258		#else
259	<	#define MAXVAL 18446744073709551616
259	>	#define MAXVAL 18446744073709551616LL
260		#endif
261		long long result;
262	<	if(new>old){
262	>	if(new>=old){
263		result = (new-old);
264		}else{
265		result = (MAXVAL+(new-old));
#	Line 207 | Line 269 | long long transfer_diff(long long new, long long old){
269
270		}
271
272	<	network_stat_t *get_network_stats_diff(int *entries){
273	<	static network_stat_t *network_stats_diff=NULL;
274	<	static int sizeof_net_stats_diff=0;
275	<	network_stat_t *network_stats_ptr, *network_stats_diff_ptr;
276	<	int ifaces, x, y;
272	>	network_stat_t *get_network_stats_diff(int *entries) {
273	>	static network_stat_t *diff = NULL;
274	>	static int diff_count = 0;
275	>	network_stat_t *src, *dest;
276	>	int i, j, new_count;
277
278	<	if(network_stats==NULL){
279	<	network_stats_ptr=get_network_stats(&ifaces);
280	<	*entries=ifaces;
219	<	return network_stats_ptr;
278	>	if (network_stats == NULL) {
279	>	/* No previous stats, so we can't calculate a difference. */
280	>	return get_network_stats(entries);
281		}
282
283	<	network_stats_diff=network_stat_malloc(interfaces, &sizeof_net_stats_diff, network_stats_diff);
284	<	if(network_stats_diff==NULL){
283	>	/* Resize the results array to match the previous stats. */
284	>	diff = network_stat_malloc(interfaces, &diff_count, diff);
285	>	if (diff == NULL) {
286		return NULL;
287		}
288
289	<	network_stats_ptr=network_stats;
290	<	network_stats_diff_ptr=network_stats_diff;
289	>	/* Copy the previous stats into the result. */
290	>	for (i = 0; i < diff_count; i++) {
291	>	src = &network_stats[i];
292	>	dest = &diff[i];
293
294	<	for(ifaces=0;ifaces<interfaces;ifaces++){
295	<	if(network_stats_diff_ptr->interface_name!=NULL){
232	<	free(network_stats_diff_ptr->interface_name);
294	>	if (dest->interface_name != NULL) {
295	>	free(dest->interface_name);
296		}
297	<	network_stats_diff_ptr->interface_name=strdup(network_stats_ptr->interface_name);
298	<	network_stats_diff_ptr->tx=network_stats_ptr->tx;
299	<	network_stats_diff_ptr->rx=network_stats_ptr->rx;
300	<	network_stats_diff_ptr->systime=network_stats->systime;
297	>	dest->interface_name = strdup(src->interface_name);
298	>	dest->rx = src->rx;
299	>	dest->tx = src->tx;
300	>	dest->systime = src->systime;
301	>	}
302
303	<	network_stats_ptr++;
304	<	network_stats_diff_ptr++;
303	>	/* Get a new set of stats. */
304	>	if (get_network_stats(&new_count) == NULL) {
305	>	return NULL;
306		}
242	–	network_stats_ptr=get_network_stats(&ifaces);
243	–	network_stats_diff_ptr=network_stats_diff;
307
308	<	for(x=0;x<sizeof_net_stats_diff;x++){
308	>	/* For each previous stat... */
309	>	for (i = 0; i < diff_count; i++) {
310	>	dest = &diff[i];
311
312	<	if((strcmp(network_stats_diff_ptr->interface_name, network_stats_ptr->interface_name))==0){
313	<	network_stats_diff_ptr->tx = transfer_diff(network_stats_ptr->tx, network_stats_diff_ptr->tx);
314	<	network_stats_diff_ptr->rx = transfer_diff(network_stats_ptr->rx, network_stats_diff_ptr->rx);
315	<	network_stats_diff_ptr->systime = network_stats_ptr->systime - network_stats_diff_ptr->systime;
312	>	/* ... find the corresponding new stat ... */
313	>	for (j = 0; j < new_count; j++) {
314	>	/* Try the new stat in the same position first,
315	>	since that's most likely to be it. */
316	>	src = &network_stats[(i + j) % new_count];
317	>	if (strcmp(src->interface_name, dest->interface_name) == 0) {
318	>	break;
319	>	}
320	>	}
321	>	if (j == new_count) {
322	>	/* No match found. */
323	>	continue;
324	>	}
325	>
326	>	/* ... and subtract the previous stat from it to get the
327	>	difference. */
328	>	dest->rx = transfer_diff(src->rx, dest->rx);
329	>	dest->tx = transfer_diff(src->tx, dest->tx);
330	>	dest->systime = src->systime - dest->systime;
331	>	}
332	>
333	>	*entries = diff_count;
334	>	return diff;
335	>	}
336	>	/* NETWORK INTERFACE STATS */
337	>
338	>	void network_iface_stat_init(int start, int end, network_iface_stat_t *net_stats){
339	>
340	>	for(net_stats+=start; start<end; start++){
341	>	net_stats->interface_name=NULL;
342	>	net_stats->speed=0;
343	>	net_stats->dup=UNKNOWN_DUPLEX;
344	>	net_stats++;
345	>	}
346	>	}
347	>
348	>	network_iface_stat_t *network_iface_stat_malloc(int needed_entries, int *cur_entries, network_iface_stat_t *net_stats){
349	>
350	>	if(net_stats==NULL){
351	>
352	>	if((net_stats=malloc(needed_entries * sizeof(network_iface_stat_t)))==NULL){
353	>	return NULL;
354	>	}
355	>	network_iface_stat_init(0, needed_entries, net_stats);
356	>	*cur_entries=needed_entries;
357	>
358	>	return net_stats;
359	>	}
360	>
361	>
362	>	if(*cur_entries<needed_entries){
363	>	net_stats=realloc(net_stats, (sizeof(network_iface_stat_t)*needed_entries));
364	>	if(net_stats==NULL){
365	>	return NULL;
366	>	}
367	>	network_iface_stat_init(*cur_entries, needed_entries, net_stats);
368	>	*cur_entries=needed_entries;
369	>	}
370	>
371	>	return net_stats;
372	>	}
373	>
374	>	network_iface_stat_t *get_network_iface_stats(int *entries){
375	>	static network_iface_stat_t *network_iface_stats;
376	>	network_iface_stat_t *network_iface_stat_ptr;
377	>	static int sizeof_network_iface_stats=0;
378	>	static int ifaces;
379	>
380	>	#ifdef SOLARIS
381	>	kstat_ctl_t *kc;
382	>	kstat_t *ksp;
383	>	kstat_named_t *knp;
384	>	#endif
385	>	#ifdef ALLBSD
386	>	struct ifaddrs *net, *net_ptr;
387	>	struct ifmediareq ifmed;
388	>	struct ifreq ifr;
389	>	int sock;
390	>	int x;
391	>	#endif
392	>	#ifdef LINUX
393	>	FILE *f;
394	>	/* Horrible big enough, but it should be easily big enough */
395	>	char line[8096];
396	>	int sock;
397	>	#endif
398	>	ifaces = 0;
399	>	#ifdef ALLBSD
400	>	if(getifaddrs(&net) != 0){
401	>	return NULL;
402	>	}
403	>
404	>	if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) == 0) return NULL;
405	>
406	>	for(net_ptr=net; net_ptr!=NULL; net_ptr=net_ptr->ifa_next){
407	>	if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
408	>	network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
409	>	if(network_iface_stats==NULL){
410	>	return NULL;
411	>	}
412	>	network_iface_stat_ptr = network_iface_stats + ifaces;
413	>
414	>	memset(&ifr, 0, sizeof(ifr));
415	>	strncpy(ifr.ifr_name, net_ptr->ifa_name, sizeof(ifr.ifr_name));
416	>
417	>	if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0){
418	>	continue;
419	>	}
420	>	if((ifr.ifr_flags & IFF_UP) != 0){
421	>	network_iface_stat_ptr->up = 1;
422		}else{
423	<
424	<	network_stats_ptr=network_stats;
254	<	for(y=0;y<ifaces;y++){
255	<	if((strcmp(network_stats_diff_ptr->interface_name, network_stats_ptr->interface_name))==0){
256	<	network_stats_diff_ptr->tx = transfer_diff(network_stats_ptr->tx, network_stats_diff_ptr->tx);
257	<	network_stats_diff_ptr->rx = transfer_diff(network_stats_ptr->rx, network_stats_diff_ptr->rx);
258	<	network_stats_diff_ptr->systime = network_stats_ptr->systime - network_stats_diff_ptr->systime;
259	<	break;
260	<	}
423	>	network_iface_stat_ptr->up = 0;
424	>	}
425
426	<	network_stats_ptr++;
427	<	}
426	>	if (network_iface_stat_ptr->interface_name != NULL) free(network_iface_stat_ptr->interface_name);
427	>	network_iface_stat_ptr->interface_name = strdup(net_ptr->ifa_name);
428	>	if (network_iface_stat_ptr->interface_name == NULL) return NULL;
429	>
430	>	network_iface_stat_ptr->speed = 0;
431	>	network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
432	>	ifaces++;
433	>
434	>	memset(&ifmed, 0, sizeof(struct ifmediareq));
435	>	strlcpy(ifmed.ifm_name, net_ptr->ifa_name, sizeof(ifmed.ifm_name));
436	>	if(ioctl(sock, SIOCGIFMEDIA, (caddr_t)&ifmed) == -1){
437	>	/* Not all interfaces support the media ioctls. */
438	>	continue;
439		}
440
441	<	network_stats_ptr++;
442	<	network_stats_diff_ptr++;
441	>	/* We may need to change this if we start doing wireless devices too */
442	>	if( (ifmed.ifm_active | IFM_ETHER) != ifmed.ifm_active ){
443	>	/* Not a ETHER device */
444	>	continue;
445	>	}
446	>
447	>	/* Only intrested in the first 4 bits)  - Assuming only ETHER devices */
448	>	x = ifmed.ifm_active & 0x0f;
449	>	switch(x){
450	>	/* 10 Mbit connections. Speedy :) */
451	>	case(IFM_10_T):
452	>	case(IFM_10_2):
453	>	case(IFM_10_5):
454	>	case(IFM_10_STP):
455	>	case(IFM_10_FL):
456	>	network_iface_stat_ptr->speed = 10;
457	>	break;
458	>	/* 100 Mbit conneections */
459	>	case(IFM_100_TX):
460	>	case(IFM_100_FX):
461	>	case(IFM_100_T4):
462	>	case(IFM_100_VG):
463	>	case(IFM_100_T2):
464	>	network_iface_stat_ptr->speed = 100;
465	>	break;
466	>	/* 1000 Mbit connections */
467	>	case(IFM_1000_SX):
468	>	case(IFM_1000_LX):
469	>	case(IFM_1000_CX):
470	>	#if defined(FREEBSD) && !defined(FREEBSD5)
471	>	case(IFM_1000_TX):
472	>	case(IFM_1000_FX):
473	>	#else
474	>	case(IFM_1000_T):
475	>	#endif
476	>	network_iface_stat_ptr->speed = 1000;
477	>	break;
478	>	/* We don't know what it is */
479	>	default:
480	>	network_iface_stat_ptr->speed = 0;
481	>	break;
482	>	}
483	>
484	>	if( (ifmed.ifm_active | IFM_FDX) == ifmed.ifm_active ){
485	>	network_iface_stat_ptr->dup = FULL_DUPLEX;
486	>	}else if( (ifmed.ifm_active | IFM_HDX) == ifmed.ifm_active ){
487	>	network_iface_stat_ptr->dup = HALF_DUPLEX;
488	>	}else{
489	>	network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
490	>	}
491	>
492	>	}
493	>	freeifaddrs(net);
494	>	close(sock);
495	>	#endif
496	>
497	>	#ifdef SOLARIS
498	>	if ((kc = kstat_open()) == NULL) {
499	>	return NULL;
500	>	}
501	>
502	>	for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
503	>	if (!strcmp(ksp->ks_class, "net")) {
504	>	kstat_read(kc, ksp, NULL);
505	>	if((knp=kstat_data_lookup(ksp, "ifspeed"))==NULL){
506	>	/* Not a network interface, so skip to the next entry */
507	>	continue;
508	>	}
509	>	network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
510	>	if(network_iface_stats==NULL){
511	>	return NULL;
512	>	}
513	>	network_iface_stat_ptr = network_iface_stats + ifaces;
514	>	network_iface_stat_ptr->speed = knp->value.ui64 / (1000*1000);
515	>
516	>	if((knp=kstat_data_lookup(ksp, "link_up"))==NULL){
517	>	/* Not a network interface, so skip to the next entry */
518	>	continue;
519	>	}
520	>	/* Solaris has 1 for up, and 0 for not. As we do too */
521	>	network_iface_stat_ptr->up = value.ui32;
522	>
523	>	if((knp=kstat_data_lookup(ksp, "link_duplex"))==NULL){
524	>	/* Not a network interface, so skip to the next entry */
525	>	continue;
526	>	}
527	>
528	>	network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
529	>	if(knp->value.ui32 == 2){
530	>	network_iface_stat_ptr->dup = FULL_DUPLEX;
531	>	}
532	>	if(knp->value.ui32 == 1){
533	>	network_iface_stat_ptr->dup = HALF_DUPLEX;
534	>	}
535	>
536	>	if(network_iface_stat_ptr->interface_name != NULL) free(network_iface_stat_ptr->interface_name);
537	>	network_iface_stat_ptr->interface_name = strdup(ksp->ks_name);
538	>	if(network_iface_stat_ptr->interface_name == NULL) return NULL;
539	>	ifaces++;
540	>	}
541		}
542	+	kstat_close(kc);
543	+
544	+	#endif
545	+	#ifdef LINUX
546	+	f = fopen("/proc/net/dev", "r");
547	+	if(f == NULL){
548	+	return NULL;
549	+	}
550
551	<	*entries=sizeof_net_stats_diff;
552	<	return network_stats_diff;
553	<	}
551	>	/* Setup stuff so we can do the ioctl to get the info */
552	>	if((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0){
553	>	return NULL;
554	>	}
555	>
556	>	/* Ignore first 2 lines.. Just headings */
557	>	if((fgets(line, sizeof(line), f)) == NULL) return NULL;
558	>	if((fgets(line, sizeof(line), f)) == NULL) return NULL;
559	>
560	>	while((fgets(line, sizeof(line), f)) != NULL){
561	>	char *name, *ptr;
562	>	struct ifreq ifr;
563	>	struct ethtool_cmd ethcmd;
564	>	int err;
565	>
566	>	/* Get the interface name */
567	>	ptr = strchr(line, ':');
568	>	if (ptr == NULL) continue;
569	>	*ptr='\0';
570	>	name = line;
571	>	while(isspace(*(name))){
572	>	name++;
573	>	}
574	>
575	>	memset(&ifr, 0, sizeof ifr);
576	>	strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
577	>
578	>	if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0) {
579	>	continue;
580	>	}
581	>
582	>	/* We have a good interface to add */
583	>	network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
584	>	if(network_iface_stats==NULL){
585	>	return NULL;
586	>	}
587	>	network_iface_stat_ptr = network_iface_stats + ifaces;
588	>	network_iface_stat_ptr->interface_name = strdup(name);
589	>	if ((ifr.ifr_flags & IFF_UP) != 0) {
590	>	network_iface_stat_ptr->up = 1;
591	>	} else {
592	>	network_iface_stat_ptr->up = 0;
593	>	}
594	>
595	>	memset(&ethcmd, 0, sizeof ethcmd);
596	>	ethcmd.cmd = ETHTOOL_GSET;
597	>	ifr.ifr_data = (caddr_t) &ethcmd;
598	>
599	>	err = ioctl(sock, SIOCETHTOOL, &ifr);
600	>	if (err == 0) {
601	>	network_iface_stat_ptr->speed = ethcmd.speed;
602	>
603	>	switch (ethcmd.duplex) {
604	>	case 0x00:
605	>	network_iface_stat_ptr->dup = FULL_DUPLEX;
606	>	break;
607	>	case 0x01:
608	>	network_iface_stat_ptr->dup = HALF_DUPLEX;
609	>	break;
610	>	default:
611	>	network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
612	>	}
613	>	} else {
614	>	/* Not all interfaces support the ethtool ioctl. */
615	>	network_iface_stat_ptr->speed = 0;
616	>	network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
617	>	}
618	>
619	>	ifaces++;
620	>	}
621	>	close(sock);
622	>	fclose(f);
623	>	#endif
624	>	*entries = ifaces;
625	>	return network_iface_stats;
626	>	}
627

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