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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 1.12 by pajs, Mon Mar 31 11:30:54 2003 UTC vs.
Revision 1.31 by ats, Fri Feb 13 15:12:26 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 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		#endif
54	+	#ifdef ALLBSD
55	+	#include <sys/types.h>
56	+	#include <sys/socket.h>
57	+	#include <ifaddrs.h>
58	+	#include <net/if.h>
59	+	#include <net/if_media.h>
60	+	#include <sys/ioctl.h>
61	+	#endif
62
63		static network_stat_t *network_stats=NULL;
64		static int interfaces=0;
#	Line 95 | Line 118 | network_stat_t *get_network_stats(int *entries){
118		regex_t regex;
119		regmatch_t line_match[4];
120		#endif
121	+	#ifdef ALLBSD
122	+	struct ifaddrs *net, *net_ptr;
123	+	struct if_data *net_data;
124	+	#endif
125
126	+	#ifdef ALLBSD
127	+	if(getifaddrs(&net) != 0){
128	+	return NULL;
129	+	}
130	+
131	+	interfaces=0;
132	+
133	+	for(net_ptr=net;net_ptr!=NULL;net_ptr=net_ptr->ifa_next){
134	+	if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
135	+	network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats);
136	+	if(network_stats==NULL){
137	+	return NULL;
138	+	}
139	+	network_stat_ptr=network_stats+interfaces;
140	+
141	+	if(network_stat_ptr->interface_name!=NULL) free(network_stat_ptr->interface_name);
142	+	network_stat_ptr->interface_name=strdup(net_ptr->ifa_name);
143	+	if(network_stat_ptr->interface_name==NULL) return NULL;
144	+	net_data=(struct if_data *)net_ptr->ifa_data;
145	+	network_stat_ptr->rx=net_data->ifi_ibytes;
146	+	network_stat_ptr->tx=net_data->ifi_obytes;
147	+	network_stat_ptr->systime=time(NULL);
148	+	interfaces++;
149	+	}
150	+	freeifaddrs(net);
151	+	#endif
152	+
153		#ifdef SOLARIS
154		if ((kc = kstat_open()) == NULL) {
155		return NULL;
#	Line 184 | Line 238 | network_stat_t *get_network_stats(int *entries){
238		interfaces++;
239		}
240		fclose(f);
241	+	regfree(&regex);
242
243		#endif
244	+
245	+	#ifdef CYGWIN
246	+	return NULL;
247	+	#endif
248	+
249		*entries=interfaces;
250
251		return network_stats;
252		}
253
254		long long transfer_diff(long long new, long long old){
255	<	#ifdef SOL7
256	<	#define MAXVAL 4294967296
255	>	#if defined(SOL7) || defined(LINUX) || defined(FREEBSD)
256	>	#define MAXVAL 4294967296LL
257		#else
258	<	#define MAXVAL 18446744073709551616
258	>	#define MAXVAL 18446744073709551616LL
259		#endif
260		long long result;
261		if(new>=old){
#	Line 208 | Line 268 | long long transfer_diff(long long new, long long old){
268
269		}
270
271	<	network_stat_t *get_network_stats_diff(int *entries){
272	<	static network_stat_t *network_stats_diff=NULL;
273	<	static int sizeof_net_stats_diff=0;
274	<	network_stat_t *network_stats_ptr, *network_stats_diff_ptr;
275	<	int ifaces, x, y;
271	>	network_stat_t *get_network_stats_diff(int *entries) {
272	>	static network_stat_t *diff = NULL;
273	>	static int diff_count = 0;
274	>	network_stat_t *src, *dest;
275	>	int i, j, new_count;
276
277	<	if(network_stats==NULL){
278	<	network_stats_ptr=get_network_stats(&ifaces);
279	<	*entries=ifaces;
220	<	return network_stats_ptr;
277	>	if (network_stats == NULL) {
278	>	/* No previous stats, so we can't calculate a difference. */
279	>	return get_network_stats(entries);
280		}
281
282	<	network_stats_diff=network_stat_malloc(interfaces, &sizeof_net_stats_diff, network_stats_diff);
283	<	if(network_stats_diff==NULL){
282	>	/* Resize the results array to match the previous stats. */
283	>	diff = network_stat_malloc(interfaces, &diff_count, diff);
284	>	if (diff == NULL) {
285		return NULL;
286		}
287
288	<	network_stats_ptr=network_stats;
289	<	network_stats_diff_ptr=network_stats_diff;
288	>	/* Copy the previous stats into the result. */
289	>	for (i = 0; i < diff_count; i++) {
290	>	src = &network_stats[i];
291	>	dest = &diff[i];
292
293	<	for(ifaces=0;ifaces<interfaces;ifaces++){
294	<	if(network_stats_diff_ptr->interface_name!=NULL){
233	<	free(network_stats_diff_ptr->interface_name);
293	>	if (dest->interface_name != NULL) {
294	>	free(dest->interface_name);
295		}
296	<	network_stats_diff_ptr->interface_name=strdup(network_stats_ptr->interface_name);
297	<	network_stats_diff_ptr->tx=network_stats_ptr->tx;
298	<	network_stats_diff_ptr->rx=network_stats_ptr->rx;
299	<	network_stats_diff_ptr->systime=network_stats->systime;
296	>	dest->interface_name = strdup(src->interface_name);
297	>	dest->rx = src->rx;
298	>	dest->tx = src->tx;
299	>	dest->systime = src->systime;
300	>	}
301
302	<	network_stats_ptr++;
303	<	network_stats_diff_ptr++;
302	>	/* Get a new set of stats. */
303	>	if (get_network_stats(&new_count) == NULL) {
304	>	return NULL;
305		}
243	–	network_stats_ptr=get_network_stats(&ifaces);
244	–	network_stats_diff_ptr=network_stats_diff;
306
307	<	for(x=0;x<sizeof_net_stats_diff;x++){
307	>	/* For each previous stat... */
308	>	for (i = 0; i < diff_count; i++) {
309	>	dest = &diff[i];
310
311	<	if((strcmp(network_stats_diff_ptr->interface_name, network_stats_ptr->interface_name))==0){
312	<	network_stats_diff_ptr->tx = transfer_diff(network_stats_ptr->tx, network_stats_diff_ptr->tx);
313	<	network_stats_diff_ptr->rx = transfer_diff(network_stats_ptr->rx, network_stats_diff_ptr->rx);
314	<	network_stats_diff_ptr->systime = network_stats_ptr->systime - network_stats_diff_ptr->systime;
311	>	/* ... find the corresponding new stat ... */
312	>	for (j = 0; j < new_count; j++) {
313	>	/* Try the new stat in the same position first,
314	>	since that's most likely to be it. */
315	>	src = &network_stats[(i + j) % new_count];
316	>	if (strcmp(src->interface_name, dest->interface_name) == 0) {
317	>	break;
318	>	}
319	>	}
320	>	if (j == new_count) {
321	>	/* No match found. */
322	>	continue;
323	>	}
324	>
325	>	/* ... and subtract the previous stat from it to get the
326	>	difference. */
327	>	dest->rx = transfer_diff(src->rx, dest->rx);
328	>	dest->tx = transfer_diff(src->tx, dest->tx);
329	>	dest->systime = src->systime - dest->systime;
330	>	}
331	>
332	>	*entries = diff_count;
333	>	return diff;
334	>	}
335	>	/* NETWORK INTERFACE STATS */
336	>
337	>	void network_iface_stat_init(int start, int end, network_iface_stat_t *net_stats){
338	>
339	>	for(net_stats+=start; start<end; start++){
340	>	net_stats->interface_name=NULL;
341	>	net_stats->speed=0;
342	>	net_stats->dup=UNKNOWN_DUPLEX;
343	>	net_stats++;
344	>	}
345	>	}
346	>
347	>	network_iface_stat_t *network_iface_stat_malloc(int needed_entries, int *cur_entries, network_iface_stat_t *net_stats){
348	>
349	>	if(net_stats==NULL){
350	>
351	>	if((net_stats=malloc(needed_entries * sizeof(network_iface_stat_t)))==NULL){
352	>	return NULL;
353	>	}
354	>	network_iface_stat_init(0, needed_entries, net_stats);
355	>	*cur_entries=needed_entries;
356	>
357	>	return net_stats;
358	>	}
359	>
360	>
361	>	if(*cur_entries<needed_entries){
362	>	net_stats=realloc(net_stats, (sizeof(network_iface_stat_t)*needed_entries));
363	>	if(net_stats==NULL){
364	>	return NULL;
365	>	}
366	>	network_iface_stat_init(*cur_entries, needed_entries, net_stats);
367	>	*cur_entries=needed_entries;
368	>	}
369	>
370	>	return net_stats;
371	>	}
372	>
373	>	network_iface_stat_t *get_network_iface_stats(int *entries){
374	>	static network_iface_stat_t *network_iface_stats;
375	>	network_iface_stat_t *network_iface_stat_ptr;
376	>	static int sizeof_network_iface_stats=0;
377	>	static int ifaces;
378	>
379	>	#ifdef SOLARIS
380	>	kstat_ctl_t *kc;
381	>	kstat_t *ksp;
382	>	kstat_named_t *knp;
383	>	#endif
384	>	#ifdef ALLBSD
385	>	struct ifaddrs *net, *net_ptr;
386	>	struct ifmediareq ifmed;
387	>	int s;
388	>	int x;
389	>	#endif
390	>	#ifdef LINUX
391	>	FILE *f;
392	>	/* Horrible big enough, but it should be easily big enough */
393	>	char line[8096];
394	>	void *eth_tool_cmd_buf;
395	>	int buf_size;
396	>	int sock;
397	>	#endif
398	>	ifaces = 0;
399	>	#ifdef ALLBSD
400	>	if(getifaddrs(&net) != 0){
401	>	return NULL;
402	>	}
403	>
404	>	if ((s = socket(AF_INET, SOCK_DGRAM, 0)) == NULL) 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(&ifmed, 0, sizeof(struct ifmediareq));
415	>	strlcpy(ifmed.ifm_name, net_ptr->ifa_name, sizeof(ifmed.ifm_name));
416	>	if(ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmed) == -1){
417	>	continue;
418	>	}
419	>
420	>	/* We may need to change this if we start doing wireless devices too */
421	>	if( (ifmed.ifm_active | IFM_ETHER) != ifmed.ifm_active ){
422	>	/* Not a ETHER device */
423	>	continue;
424	>	}
425	>
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	>	/* Only intrested in the first 4 bits)  - Assuming only ETHER devices */
431	>	x = ifmed.ifm_active & 0x0f;
432	>	switch(x){
433	>	/* 10 Mbit connections. Speedy :) */
434	>	case(IFM_10_T):
435	>	case(IFM_10_2):
436	>	case(IFM_10_5):
437	>	case(IFM_10_STP):
438	>	case(IFM_10_FL):
439	>	network_iface_stat_ptr->speed = 10;
440	>	break;
441	>	/* 100 Mbit conneections */
442	>	case(IFM_100_TX):
443	>	case(IFM_100_FX):
444	>	case(IFM_100_T4):
445	>	case(IFM_100_VG):
446	>	case(IFM_100_T2):
447	>	network_iface_stat_ptr->speed = 100;
448	>	break;
449	>	/* 1000 Mbit connections */
450	>	case(IFM_1000_SX):
451	>	case(IFM_1000_LX):
452	>	case(IFM_1000_CX):
453	>	#if defined(FREEBSD) && !defined(FREEBSD5)
454	>	case(IFM_1000_TX):
455	>	case(IFM_1000_FX):
456	>	#else
457	>	case(IFM_1000_T):
458	>	#endif
459	>	network_iface_stat_ptr->speed = 1000;
460	>	break;
461	>	/* We don't know what it is */
462	>	default:
463	>	network_iface_stat_ptr->speed = 0;
464	>	break;
465	>	}
466	>
467	>	if( (ifmed.ifm_active | IFM_FDX) == ifmed.ifm_active ){
468	>	network_iface_stat_ptr->dup = FULL_DUPLEX;
469	>	}else if( (ifmed.ifm_active | IFM_HDX) == ifmed.ifm_active ){
470	>	network_iface_stat_ptr->dup = HALF_DUPLEX;
471		}else{
472	<
473	<	network_stats_ptr=network_stats;
474	<	for(y=0;y<ifaces;y++){
475	<	if((strcmp(network_stats_diff_ptr->interface_name, network_stats_ptr->interface_name))==0){
476	<	network_stats_diff_ptr->tx = transfer_diff(network_stats_ptr->tx, network_stats_diff_ptr->tx);
477	<	network_stats_diff_ptr->rx = transfer_diff(network_stats_ptr->rx, network_stats_diff_ptr->rx);
478	<	network_stats_diff_ptr->systime = network_stats_ptr->systime - network_stats_diff_ptr->systime;
260	<	break;
261	<	}
472	>	network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
473	>	}
474	>	ifaces++;
475	>	}
476	>	freeifaddrs(net);
477	>	close(s);
478	>	#endif
479
480	<	network_stats_ptr++;
481	<	}
480	>	#ifdef SOLARIS
481	>	if ((kc = kstat_open()) == NULL) {
482	>	return NULL;
483	>	}
484	>
485	>	for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
486	>	if (!strcmp(ksp->ks_class, "net")) {
487	>	kstat_read(kc, ksp, NULL);
488	>	if((knp=kstat_data_lookup(ksp, "ifspeed"))==NULL){
489	>	/* Not a network interface, so skip to the next entry */
490	>	continue;
491	>	}
492	>	network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
493	>	if(network_iface_stats==NULL){
494	>	return NULL;
495	>	}
496	>	network_iface_stat_ptr = network_iface_stats + ifaces;
497	>	network_iface_stat_ptr->speed = knp->value.ui64 / (1000*1000);
498	>
499	>	if((knp=kstat_data_lookup(ksp, "link_duplex"))==NULL){
500	>	/* Not a network interface, so skip to the next entry */
501	>	continue;
502	>	}
503	>
504	>	if(knp->value.ui64 == 0){
505	>	network_iface_stat_ptr->dup = FULL_DUPLEX;
506	>	}else{
507	>	network_iface_stat_ptr->dup = HALF_DUPLEX;
508	>	}
509	>
510	>	if(network_iface_stat_ptr->interface_name != NULL) free(network_iface_stat_ptr->interface_name);
511	>	network_iface_stat_ptr->interface_name = strdup(ksp->ks_name);
512	>	if(network_iface_stat_ptr->interface_name == NULL) return NULL;
513	>	ifaces++;
514		}
515	+	}
516	+	kstat_close(kc);
517	+
518	+	#endif
519	+	#ifdef LINUX
520
521	<	network_stats_ptr++;
522	<	network_stats_diff_ptr++;
521	>	f = fopen("/proc/net/dev", "r");
522	>	if(f == NULL){
523	>	return NULL;
524	>	}
525	>
526	>	/* Setup stuff so we can do the ioctl to get the info */
527	>	if((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0){
528	>	return NULL;
529		}
530
531	<	*entries=sizeof_net_stats_diff;
532	<	return network_stats_diff;
533	<	}
531	>	buf_size = sizeof(struct ethtool_cmd);
532	>	eth_tool_cmd_buf = malloc(buf_size);
533	>	if(eth_tool_cmd_buf == NULL) return NULL;
534	>
535	>	/* Ignore first 2 lines.. Just headings */
536	>	if((fgets(line, sizeof(line), f)) == NULL) return NULL;
537	>	if((fgets(line, sizeof(line), f)) == NULL) return NULL;
538	>
539	>	while((fgets(line, sizeof(line), f)) != NULL){
540	>	char *name, *ptr;
541	>	struct ifreq ifr;
542	>	struct ethtool_cmd *ethcmd;
543	>	int err;
544	>
545	>	/* Get the interface name */
546	>	ptr = strchr(line, ':');
547	>	if (ptr == NULL) continue;
548	>	*ptr='\0';
549	>	name = line;
550	>	while(isspace(*(name))){
551	>	name++;
552	>	}
553	>
554	>	memset(&ifr, 0, sizeof(ifr));
555	>	memset(eth_tool_cmd_buf, 0, buf_size);
556	>	ifr.ifr_data = (caddr_t) eth_tool_cmd_buf;
557	>	strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
558	>
559	>	ethcmd = (struct ethtool_cmd *) ifr.ifr_data;
560	>	ethcmd->cmd = ETHTOOL_GSET;
561	>
562	>	err = ioctl(sock, SIOCETHTOOL, &ifr);
563	>	if(err < 0){
564	>	/* This could fail if the interface doesn't support the command. Carry
565	>	* on to the next :)
566	>	*/
567	>	continue;
568	>	}
569	>
570	>	/* We have a good interface to add */
571	>	network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
572	>	if(network_iface_stats==NULL){
573	>	return NULL;
574	>	}
575	>	network_iface_stat_ptr = network_iface_stats + ifaces;
576	>	network_iface_stat_ptr->interface_name = strdup(name);
577	>	network_iface_stat_ptr->speed = ethcmd->speed;
578	>	network_iface_stat_ptr->dup = UNKNOWN_DUPEX;
579	>	if(ethcmd->duplex == 0x00){
580	>	network_iface_stat_ptr->dup = FULL_DUPLEX;
581	>	}
582	>	if(ethcmd->duplex == 0x01){
583	>	network_iface_stat_ptr->dup = HALF_DUPLEX;
584	>	}
585	>	ifaces++;
586	>	}
587	>	close(sock);
588	>	free(eth_tool_cmd_buf);
589	>	#endif
590	>	*entries = ifaces;
591	>	return network_iface_stats;
592	>	}
593

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