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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 1.18 by ats, Sun Oct 19 02:03:02 2003 UTC vs.
Revision 1.33 by pajs, Fri Feb 13 15:29:16 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 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;
#	Line 224 | Line 242 | network_stat_t *get_network_stats(int *entries){
242		regfree(&regex);
243
244		#endif
245	+
246	+	#ifdef CYGWIN
247	+	return NULL;
248	+	#endif
249	+
250		*entries=interfaces;
251
252		return network_stats;
#	Line 231 | Line 254 | network_stat_t *get_network_stats(int *entries){
254
255		long long transfer_diff(long long new, long long old){
256		#if defined(SOL7) || defined(LINUX) || defined(FREEBSD)
257	<	#define MAXVAL 4294967296
257	>	#define MAXVAL 4294967296LL
258		#else
259	<	#define MAXVAL 18446744073709551616
259	>	#define MAXVAL 18446744073709551616LL
260		#endif
261		long long result;
262		if(new>=old){
#	Line 246 | 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;
258	<	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){
271	<	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		}
281	–	network_stats_ptr=get_network_stats(&ifaces);
282	–	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	>	int s;
389	>	int x;
390	>	#endif
391	>	#ifdef LINUX
392	>	FILE *f;
393	>	/* Horrible big enough, but it should be easily big enough */
394	>	char line[8096];
395	>	void *eth_tool_cmd_buf;
396	>	int buf_size;
397	>	int sock;
398	>	#endif
399	>	ifaces = 0;
400	>	#ifdef ALLBSD
401	>	if(getifaddrs(&net) != 0){
402	>	return NULL;
403	>	}
404	>
405	>	if ((s = socket(AF_INET, SOCK_DGRAM, 0)) == NULL) return NULL;
406	>
407	>	for(net_ptr=net; net_ptr!=NULL; net_ptr=net_ptr->ifa_next){
408	>	if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
409	>	network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
410	>	if(network_iface_stats==NULL){
411	>	return NULL;
412	>	}
413	>	network_iface_stat_ptr = network_iface_stats + ifaces;
414	>
415	>	memset(&ifmed, 0, sizeof(struct ifmediareq));
416	>	strlcpy(ifmed.ifm_name, net_ptr->ifa_name, sizeof(ifmed.ifm_name));
417	>	if(ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmed) == -1){
418	>	continue;
419	>	}
420	>
421	>	/* We may need to change this if we start doing wireless devices too */
422	>	if( (ifmed.ifm_active | IFM_ETHER) != ifmed.ifm_active ){
423	>	/* Not a ETHER device */
424	>	continue;
425	>	}
426	>
427	>	if(network_iface_stat_ptr->interface_name != NULL) free(network_iface_stat_ptr->interface_name);
428	>	network_iface_stat_ptr->interface_name = strdup(net_ptr->ifa_name);
429	>	if(network_iface_stat_ptr->interface_name == NULL) return NULL;
430	>
431	>	/* Only intrested in the first 4 bits)  - Assuming only ETHER devices */
432	>	x = ifmed.ifm_active & 0x0f;
433	>	switch(x){
434	>	/* 10 Mbit connections. Speedy :) */
435	>	case(IFM_10_T):
436	>	case(IFM_10_2):
437	>	case(IFM_10_5):
438	>	case(IFM_10_STP):
439	>	case(IFM_10_FL):
440	>	network_iface_stat_ptr->speed = 10;
441	>	break;
442	>	/* 100 Mbit conneections */
443	>	case(IFM_100_TX):
444	>	case(IFM_100_FX):
445	>	case(IFM_100_T4):
446	>	case(IFM_100_VG):
447	>	case(IFM_100_T2):
448	>	network_iface_stat_ptr->speed = 100;
449	>	break;
450	>	/* 1000 Mbit connections */
451	>	case(IFM_1000_SX):
452	>	case(IFM_1000_LX):
453	>	case(IFM_1000_CX):
454	>	#if defined(FREEBSD) && !defined(FREEBSD5)
455	>	case(IFM_1000_TX):
456	>	case(IFM_1000_FX):
457	>	#else
458	>	case(IFM_1000_T):
459	>	#endif
460	>	network_iface_stat_ptr->speed = 1000;
461	>	break;
462	>	/* We don't know what it is */
463	>	default:
464	>	network_iface_stat_ptr->speed = 0;
465	>	break;
466	>	}
467	>
468	>	if( (ifmed.ifm_active | IFM_FDX) == ifmed.ifm_active ){
469	>	network_iface_stat_ptr->dup = FULL_DUPLEX;
470	>	}else if( (ifmed.ifm_active | IFM_HDX) == ifmed.ifm_active ){
471	>	network_iface_stat_ptr->dup = HALF_DUPLEX;
472		}else{
473	<
474	<	network_stats_ptr=network_stats;
475	<	for(y=0;y<ifaces;y++){
476	<	if((strcmp(network_stats_diff_ptr->interface_name, network_stats_ptr->interface_name))==0){
477	<	network_stats_diff_ptr->tx = transfer_diff(network_stats_ptr->tx, network_stats_diff_ptr->tx);
478	<	network_stats_diff_ptr->rx = transfer_diff(network_stats_ptr->rx, network_stats_diff_ptr->rx);
479	<	network_stats_diff_ptr->systime = network_stats_ptr->systime - network_stats_diff_ptr->systime;
298	<	break;
299	<	}
473	>	network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
474	>	}
475	>	ifaces++;
476	>	}
477	>	freeifaddrs(net);
478	>	close(s);
479	>	#endif
480
481	<	network_stats_ptr++;
482	<	}
481	>	#ifdef SOLARIS
482	>	if ((kc = kstat_open()) == NULL) {
483	>	return NULL;
484	>	}
485	>
486	>	for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
487	>	if (!strcmp(ksp->ks_class, "net")) {
488	>	kstat_read(kc, ksp, NULL);
489	>	if((knp=kstat_data_lookup(ksp, "ifspeed"))==NULL){
490	>	/* Not a network interface, so skip to the next entry */
491	>	continue;
492	>	}
493	>	network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
494	>	if(network_iface_stats==NULL){
495	>	return NULL;
496	>	}
497	>	network_iface_stat_ptr = network_iface_stats + ifaces;
498	>	network_iface_stat_ptr->speed = knp->value.ui64 / (1000*1000);
499	>
500	>	if((knp=kstat_data_lookup(ksp, "link_duplex"))==NULL){
501	>	/* Not a network interface, so skip to the next entry */
502	>	continue;
503	>	}
504	>
505	>	network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
506	>	if(knp->value.ui64 == 2){
507	>	network_iface_stat_ptr->dup = FULL_DUPLEX;
508	>	}
509	>	if(knp->value.ui64 == 1){
510	>	network_iface_stat_ptr->dup = HALF_DUPLEX;
511	>	}
512	>
513	>	if(network_iface_stat_ptr->interface_name != NULL) free(network_iface_stat_ptr->interface_name);
514	>	network_iface_stat_ptr->interface_name = strdup(ksp->ks_name);
515	>	if(network_iface_stat_ptr->interface_name == NULL) return NULL;
516	>	ifaces++;
517		}
518	+	}
519	+	kstat_close(kc);
520	+
521	+	#endif
522	+	#ifdef LINUX
523
524	<	network_stats_ptr++;
525	<	network_stats_diff_ptr++;
524	>	f = fopen("/proc/net/dev", "r");
525	>	if(f == NULL){
526	>	return NULL;
527	>	}
528	>
529	>	/* Setup stuff so we can do the ioctl to get the info */
530	>	if((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0){
531	>	return NULL;
532		}
533
534	<	*entries=sizeof_net_stats_diff;
535	<	return network_stats_diff;
536	<	}
534	>	buf_size = sizeof(struct ethtool_cmd);
535	>	eth_tool_cmd_buf = malloc(buf_size);
536	>	if(eth_tool_cmd_buf == NULL) return NULL;
537	>
538	>	/* Ignore first 2 lines.. Just headings */
539	>	if((fgets(line, sizeof(line), f)) == NULL) return NULL;
540	>	if((fgets(line, sizeof(line), f)) == NULL) return NULL;
541	>
542	>	while((fgets(line, sizeof(line), f)) != NULL){
543	>	char *name, *ptr;
544	>	struct ifreq ifr;
545	>	struct ethtool_cmd *ethcmd;
546	>	int err;
547	>
548	>	/* Get the interface name */
549	>	ptr = strchr(line, ':');
550	>	if (ptr == NULL) continue;
551	>	*ptr='\0';
552	>	name = line;
553	>	while(isspace(*(name))){
554	>	name++;
555	>	}
556	>
557	>	memset(&ifr, 0, sizeof(ifr));
558	>	memset(eth_tool_cmd_buf, 0, buf_size);
559	>	ifr.ifr_data = (caddr_t) eth_tool_cmd_buf;
560	>	strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
561	>
562	>	ethcmd = (struct ethtool_cmd *) ifr.ifr_data;
563	>	ethcmd->cmd = ETHTOOL_GSET;
564	>
565	>	err = ioctl(sock, SIOCETHTOOL, &ifr);
566	>	if(err < 0){
567	>	/* This could fail if the interface doesn't support the command. Carry
568	>	* on to the next :)
569	>	*/
570	>	continue;
571	>	}
572	>
573	>	/* We have a good interface to add */
574	>	network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
575	>	if(network_iface_stats==NULL){
576	>	return NULL;
577	>	}
578	>	network_iface_stat_ptr = network_iface_stats + ifaces;
579	>	network_iface_stat_ptr->interface_name = strdup(name);
580	>	network_iface_stat_ptr->speed = ethcmd->speed;
581	>	network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
582	>	if(ethcmd->duplex == 0x00){
583	>	network_iface_stat_ptr->dup = FULL_DUPLEX;
584	>	}
585	>	if(ethcmd->duplex == 0x01){
586	>	network_iface_stat_ptr->dup = HALF_DUPLEX;
587	>	}
588	>	ifaces++;
589	>	}
590	>	close(sock);
591	>	free(eth_tool_cmd_buf);
592	>	#endif
593	>	*entries = ifaces;
594	>	return network_iface_stats;
595	>	}
596

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