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root/i-scream/projects/libstatgrab/src/libstatgrab/network_stats.c
Revision: 1.55
Committed: Tue Mar 9 11:29:46 2004 UTC (20 years, 2 months ago) by ats
Content type: text/plain
Branch: MAIN
Changes since 1.54: +3 -1 lines
Log Message:
Add a FIXME note on the network interface stats code; some Solaris
interfaces have packet counts but not byte counts, so it would be useful
to return those once we have a way of indicating the byte count is
unknown.

File Contents

# Content
1 /*
2 * i-scream central monitoring system
3 * http://www.i-scream.org
4 * Copyright (C) 2000-2004 i-scream
5 *
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 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 GNU
14 * Lesser General Public License for more details.
15 *
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: network_stats.c,v 1.54 2004/03/08 13:48:00 tdb Exp $
22 */
23
24 #ifdef HAVE_CONFIG_H
25 #include "config.h"
26 #endif
27
28 #include <stdlib.h>
29 #include <string.h>
30 #include "statgrab.h"
31 #include <time.h>
32 #ifdef SOLARIS
33 #include <kstat.h>
34 #include <sys/sysinfo.h>
35 #include <sys/types.h>
36 #include <sys/socket.h>
37 #include <sys/ioctl.h>
38 #include <net/if.h>
39 #include <netinet/in.h>
40 #include <sys/sockio.h>
41 #endif
42 #ifdef LINUX
43 #include <stdio.h>
44 #include <sys/types.h>
45 #include <regex.h>
46 #include <sys/ioctl.h>
47 #include <sys/socket.h>
48 #include <net/if.h>
49 #include <ctype.h>
50 #include "tools.h"
51 /* Stuff which could be defined by defining KERNEL, but
52 * that would be a bad idea, so we'll just declare it here
53 */
54 typedef __uint8_t u8;
55 typedef __uint16_t u16;
56 typedef __uint32_t u32;
57 typedef __uint64_t u64;
58 #include <linux/ethtool.h>
59 #include <linux/sockios.h>
60 #include <unistd.h>
61 #endif
62 #ifdef ALLBSD
63 #include <sys/types.h>
64 #include <sys/socket.h>
65 #include <ifaddrs.h>
66 #include <net/if.h>
67 #include <net/if_media.h>
68 #include <sys/ioctl.h>
69 #endif
70
71 static network_stat_t *network_stats=NULL;
72 static int interfaces=0;
73
74 void network_stat_init(int start, int end, network_stat_t *net_stats){
75
76 for(net_stats+=start; start<end; start++){
77 net_stats->interface_name=NULL;
78 net_stats->tx=0;
79 net_stats->rx=0;
80 net_stats->ipackets=0;
81 net_stats->opackets=0;
82 net_stats->ierrors=0;
83 net_stats->oerrors=0;
84 net_stats->collisions=0;
85 net_stats++;
86 }
87 }
88
89 network_stat_t *network_stat_malloc(int needed_entries, int *cur_entries, network_stat_t *net_stats){
90
91 if(net_stats==NULL){
92
93 if((net_stats=malloc(needed_entries * sizeof(network_stat_t)))==NULL){
94 return NULL;
95 }
96 network_stat_init(0, needed_entries, net_stats);
97 *cur_entries=needed_entries;
98
99 return net_stats;
100 }
101
102
103 if(*cur_entries<needed_entries){
104 net_stats=realloc(net_stats, (sizeof(network_stat_t)*needed_entries));
105 if(net_stats==NULL){
106 return NULL;
107 }
108 network_stat_init(*cur_entries, needed_entries, net_stats);
109 *cur_entries=needed_entries;
110 }
111
112 return net_stats;
113 }
114
115
116 network_stat_t *get_network_stats(int *entries){
117
118 static int sizeof_network_stats=0;
119 network_stat_t *network_stat_ptr;
120
121 #ifdef SOLARIS
122 kstat_ctl_t *kc;
123 kstat_t *ksp;
124 kstat_named_t *knp;
125 #endif
126
127 #ifdef LINUX
128 FILE *f;
129 /* Horrible big enough, but it should be easily big enough */
130 char line[8096];
131 regex_t regex;
132 regmatch_t line_match[9];
133 #endif
134 #ifdef ALLBSD
135 struct ifaddrs *net, *net_ptr;
136 struct if_data *net_data;
137 #endif
138
139 #ifdef ALLBSD
140 if(getifaddrs(&net) != 0){
141 return NULL;
142 }
143
144 interfaces=0;
145
146 for(net_ptr=net;net_ptr!=NULL;net_ptr=net_ptr->ifa_next){
147 if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
148 network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats);
149 if(network_stats==NULL){
150 return NULL;
151 }
152 network_stat_ptr=network_stats+interfaces;
153
154 if(network_stat_ptr->interface_name!=NULL) free(network_stat_ptr->interface_name);
155 network_stat_ptr->interface_name=strdup(net_ptr->ifa_name);
156 if(network_stat_ptr->interface_name==NULL) return NULL;
157 net_data=(struct if_data *)net_ptr->ifa_data;
158 network_stat_ptr->rx=net_data->ifi_ibytes;
159 network_stat_ptr->tx=net_data->ifi_obytes;
160 network_stat_ptr->ipackets=net_data->ifi_ipackets;
161 network_stat_ptr->opackets=net_data->ifi_opackets;
162 network_stat_ptr->ierrors=net_data->ifi_ierrors;
163 network_stat_ptr->oerrors=net_data->ifi_oerrors;
164 network_stat_ptr->collisions=net_data->ifi_collisions;
165 network_stat_ptr->systime=time(NULL);
166 interfaces++;
167 }
168 freeifaddrs(net);
169 #endif
170
171 #ifdef SOLARIS
172 if ((kc = kstat_open()) == NULL) {
173 return NULL;
174 }
175
176 interfaces=0;
177
178 for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
179 if (!strcmp(ksp->ks_class, "net")) {
180 kstat_read(kc, ksp, NULL);
181
182 #ifdef SOL7
183 #define LRX "rbytes"
184 #define LTX "obytes"
185 #define LIPACKETS "ipackets"
186 #define LOPACKETS "opackets"
187 #define VALTYPE value.ui32
188 #else
189 #define LRX "rbytes64"
190 #define LTX "obytes64"
191 #define LIPACKETS "ipackets64"
192 #define LOPACKETS "opackets64"
193 #define VALTYPE value.ui64
194 #endif
195
196 /* Read rx */
197 if((knp=kstat_data_lookup(ksp, LRX))==NULL){
198 /* This is a network interface, but it doesn't
199 * have the rbytes/obytes values; for instance,
200 * the loopback devices have this behaviour
201 * (although they do track packets in/out). */
202 /* FIXME: Show packet counts when byte counts
203 * not available. */
204 continue;
205 }
206
207 /* Create new network_stats */
208 network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats);
209 if(network_stats==NULL){
210 return NULL;
211 }
212 network_stat_ptr=network_stats+interfaces;
213
214 /* Finish reading rx */
215 network_stat_ptr->rx=knp->VALTYPE;
216
217 /* Read tx */
218 if((knp=kstat_data_lookup(ksp, LTX))==NULL){
219 continue;
220 }
221 network_stat_ptr->tx=knp->VALTYPE;
222
223 /* Read ipackets */
224 if((knp=kstat_data_lookup(ksp, LIPACKETS))==NULL){
225 continue;
226 }
227 network_stat_ptr->ipackets=knp->VALTYPE;
228
229 /* Read opackets */
230 if((knp=kstat_data_lookup(ksp, LOPACKETS))==NULL){
231 continue;
232 }
233 network_stat_ptr->opackets=knp->VALTYPE;
234
235 /* Read ierrors */
236 if((knp=kstat_data_lookup(ksp, "ierrors"))==NULL){
237 continue;
238 }
239 network_stat_ptr->ierrors=knp->value.ui32;
240
241 /* Read oerrors */
242 if((knp=kstat_data_lookup(ksp, "oerrors"))==NULL){
243 continue;
244 }
245 network_stat_ptr->oerrors=knp->value.ui32;
246
247 /* Read collisions */
248 if((knp=kstat_data_lookup(ksp, "collisions"))==NULL){
249 continue;
250 }
251 network_stat_ptr->collisions=knp->value.ui32;
252
253 /* Read interface name */
254 if(network_stat_ptr->interface_name!=NULL){
255 free(network_stat_ptr->interface_name);
256 }
257 network_stat_ptr->interface_name=strdup(ksp->ks_name);
258
259 /* Store systime */
260 network_stat_ptr->systime=time(NULL);
261
262 interfaces++;
263 }
264 }
265
266 kstat_close(kc);
267 #endif
268 #ifdef LINUX
269 f=fopen("/proc/net/dev", "r");
270 if(f==NULL){
271 return NULL;
272 }
273 /* read the 2 lines.. Its the title, so we dont care :) */
274 fgets(line, sizeof(line), f);
275 fgets(line, sizeof(line), f);
276
277
278 if((regcomp(&regex, "^ *([^:]+): *([0-9]+) +([0-9]+) +([0-9]+) +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+ +([0-9]+) +([0-9]+) +([0-9]+) +[0-9]+ +[0-9]+ +([0-9]+)", REG_EXTENDED))!=0){
279 return NULL;
280 }
281
282 interfaces=0;
283
284 while((fgets(line, sizeof(line), f)) != NULL){
285 if((regexec(&regex, line, 9, line_match, 0))!=0){
286 continue;
287 }
288 network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats);
289 if(network_stats==NULL){
290 return NULL;
291 }
292 network_stat_ptr=network_stats+interfaces;
293
294 if(network_stat_ptr->interface_name!=NULL){
295 free(network_stat_ptr->interface_name);
296 }
297
298 network_stat_ptr->interface_name=get_string_match(line, &line_match[1]);
299 network_stat_ptr->rx=get_ll_match(line, &line_match[2]);
300 network_stat_ptr->tx=get_ll_match(line, &line_match[5]);
301 network_stat_ptr->ipackets=get_ll_match(line, &line_match[3]);
302 network_stat_ptr->opackets=get_ll_match(line, &line_match[6]);
303 network_stat_ptr->ierrors=get_ll_match(line, &line_match[4]);
304 network_stat_ptr->oerrors=get_ll_match(line, &line_match[7]);
305 network_stat_ptr->collisions=get_ll_match(line, &line_match[8]);
306 network_stat_ptr->systime=time(NULL);
307
308 interfaces++;
309 }
310 fclose(f);
311 regfree(&regex);
312
313 #endif
314
315 #ifdef CYGWIN
316 return NULL;
317 #endif
318
319 *entries=interfaces;
320
321 return network_stats;
322 }
323
324 long long transfer_diff(long long new, long long old){
325 #if defined(SOL7) || defined(LINUX) || defined(FREEBSD) || defined(DFBSD)
326 #define MAXVAL 0xffffffffLL
327 #else
328 #define MAXVAL 0xffffffffffffffffLL
329 #endif
330 long long result;
331 if(new>=old){
332 result = (new-old);
333 }else{
334 result = (MAXVAL+(new-old));
335 }
336
337 return result;
338
339 }
340
341 network_stat_t *get_network_stats_diff(int *entries) {
342 static network_stat_t *diff = NULL;
343 static int diff_count = 0;
344 network_stat_t *src, *dest;
345 int i, j, new_count;
346
347 if (network_stats == NULL) {
348 /* No previous stats, so we can't calculate a difference. */
349 return get_network_stats(entries);
350 }
351
352 /* Resize the results array to match the previous stats. */
353 diff = network_stat_malloc(interfaces, &diff_count, diff);
354 if (diff == NULL) {
355 return NULL;
356 }
357
358 /* Copy the previous stats into the result. */
359 for (i = 0; i < diff_count; i++) {
360 src = &network_stats[i];
361 dest = &diff[i];
362
363 if (dest->interface_name != NULL) {
364 free(dest->interface_name);
365 }
366 dest->interface_name = strdup(src->interface_name);
367 dest->rx = src->rx;
368 dest->tx = src->tx;
369 dest->ipackets = src->ipackets;
370 dest->opackets = src->opackets;
371 dest->ierrors = src->ierrors;
372 dest->oerrors = src->oerrors;
373 dest->collisions = src->collisions;
374 dest->systime = src->systime;
375 }
376
377 /* Get a new set of stats. */
378 if (get_network_stats(&new_count) == NULL) {
379 return NULL;
380 }
381
382 /* For each previous stat... */
383 for (i = 0; i < diff_count; i++) {
384 dest = &diff[i];
385
386 /* ... find the corresponding new stat ... */
387 for (j = 0; j < new_count; j++) {
388 /* Try the new stat in the same position first,
389 since that's most likely to be it. */
390 src = &network_stats[(i + j) % new_count];
391 if (strcmp(src->interface_name, dest->interface_name) == 0) {
392 break;
393 }
394 }
395 if (j == new_count) {
396 /* No match found. */
397 continue;
398 }
399
400 /* ... and subtract the previous stat from it to get the
401 difference. */
402 dest->rx = transfer_diff(src->rx, dest->rx);
403 dest->tx = transfer_diff(src->tx, dest->tx);
404 dest->ipackets = transfer_diff(src->ipackets, dest->ipackets);
405 dest->opackets = transfer_diff(src->opackets, dest->opackets);
406 dest->ierrors = transfer_diff(src->ierrors, dest->ierrors);
407 dest->oerrors = transfer_diff(src->oerrors, dest->oerrors);
408 dest->collisions = transfer_diff(src->collisions, dest->collisions);
409 dest->systime = src->systime - dest->systime;
410 }
411
412 *entries = diff_count;
413 return diff;
414 }
415 /* NETWORK INTERFACE STATS */
416
417 void network_iface_stat_init(int start, int end, network_iface_stat_t *net_stats){
418
419 for(net_stats+=start; start<end; start++){
420 net_stats->interface_name=NULL;
421 net_stats->speed=0;
422 net_stats->dup=UNKNOWN_DUPLEX;
423 net_stats++;
424 }
425 }
426
427 network_iface_stat_t *network_iface_stat_malloc(int needed_entries, int *cur_entries, network_iface_stat_t *net_stats){
428
429 if(net_stats==NULL){
430
431 if((net_stats=malloc(needed_entries * sizeof(network_iface_stat_t)))==NULL){
432 return NULL;
433 }
434 network_iface_stat_init(0, needed_entries, net_stats);
435 *cur_entries=needed_entries;
436
437 return net_stats;
438 }
439
440
441 if(*cur_entries<needed_entries){
442 net_stats=realloc(net_stats, (sizeof(network_iface_stat_t)*needed_entries));
443 if(net_stats==NULL){
444 return NULL;
445 }
446 network_iface_stat_init(*cur_entries, needed_entries, net_stats);
447 *cur_entries=needed_entries;
448 }
449
450 return net_stats;
451 }
452
453 network_iface_stat_t *get_network_iface_stats(int *entries){
454 static network_iface_stat_t *network_iface_stats;
455 network_iface_stat_t *network_iface_stat_ptr;
456 static int sizeof_network_iface_stats=0;
457 int ifaces = 0;
458
459 #ifdef SOLARIS
460 kstat_ctl_t *kc;
461 kstat_t *ksp;
462 kstat_named_t *knp;
463 int sock;
464 #endif
465 #ifdef ALLBSD
466 struct ifaddrs *net, *net_ptr;
467 struct ifmediareq ifmed;
468 struct ifreq ifr;
469 int sock;
470 int x;
471 #endif
472 #ifdef LINUX
473 FILE *f;
474 /* Horrible big enough, but it should be easily big enough */
475 char line[8096];
476 int sock;
477 #endif
478
479 #ifdef ALLBSD
480 if(getifaddrs(&net) != 0){
481 return NULL;
482 }
483
484 if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) == 0) return NULL;
485
486 for(net_ptr=net; net_ptr!=NULL; net_ptr=net_ptr->ifa_next){
487 if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
488 network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
489 if(network_iface_stats==NULL){
490 return NULL;
491 }
492 network_iface_stat_ptr = network_iface_stats + ifaces;
493
494 memset(&ifr, 0, sizeof(ifr));
495 strncpy(ifr.ifr_name, net_ptr->ifa_name, sizeof(ifr.ifr_name));
496
497 if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0){
498 continue;
499 }
500 if((ifr.ifr_flags & IFF_UP) != 0){
501 network_iface_stat_ptr->up = 1;
502 }else{
503 network_iface_stat_ptr->up = 0;
504 }
505
506 if (network_iface_stat_ptr->interface_name != NULL) free(network_iface_stat_ptr->interface_name);
507 network_iface_stat_ptr->interface_name = strdup(net_ptr->ifa_name);
508 if (network_iface_stat_ptr->interface_name == NULL) return NULL;
509
510 network_iface_stat_ptr->speed = 0;
511 network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
512 ifaces++;
513
514 memset(&ifmed, 0, sizeof(struct ifmediareq));
515 strlcpy(ifmed.ifm_name, net_ptr->ifa_name, sizeof(ifmed.ifm_name));
516 if(ioctl(sock, SIOCGIFMEDIA, (caddr_t)&ifmed) == -1){
517 /* Not all interfaces support the media ioctls. */
518 continue;
519 }
520
521 /* We may need to change this if we start doing wireless devices too */
522 if( (ifmed.ifm_active | IFM_ETHER) != ifmed.ifm_active ){
523 /* Not a ETHER device */
524 continue;
525 }
526
527 /* Only intrested in the first 4 bits) - Assuming only ETHER devices */
528 x = ifmed.ifm_active & 0x0f;
529 switch(x){
530 /* 10 Mbit connections. Speedy :) */
531 case(IFM_10_T):
532 case(IFM_10_2):
533 case(IFM_10_5):
534 case(IFM_10_STP):
535 case(IFM_10_FL):
536 network_iface_stat_ptr->speed = 10;
537 break;
538 /* 100 Mbit conneections */
539 case(IFM_100_TX):
540 case(IFM_100_FX):
541 case(IFM_100_T4):
542 case(IFM_100_VG):
543 case(IFM_100_T2):
544 network_iface_stat_ptr->speed = 100;
545 break;
546 /* 1000 Mbit connections */
547 case(IFM_1000_SX):
548 case(IFM_1000_LX):
549 case(IFM_1000_CX):
550 #if defined(IFM_1000_TX) && !defined(OPENBSD)
551 case(IFM_1000_TX): /* FreeBSD 4 and others (but NOT OpenBSD)? */
552 #endif
553 #ifdef IFM_1000_FX
554 case(IFM_1000_FX): /* FreeBSD 4 */
555 #endif
556 #ifdef IFM_1000_T
557 case(IFM_1000_T): /* FreeBSD 5 */
558 #endif
559 network_iface_stat_ptr->speed = 1000;
560 break;
561 /* We don't know what it is */
562 default:
563 network_iface_stat_ptr->speed = 0;
564 break;
565 }
566
567 if( (ifmed.ifm_active | IFM_FDX) == ifmed.ifm_active ){
568 network_iface_stat_ptr->dup = FULL_DUPLEX;
569 }else if( (ifmed.ifm_active | IFM_HDX) == ifmed.ifm_active ){
570 network_iface_stat_ptr->dup = HALF_DUPLEX;
571 }else{
572 network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
573 }
574
575 }
576 freeifaddrs(net);
577 close(sock);
578 #endif
579
580 #ifdef SOLARIS
581 if ((kc = kstat_open()) == NULL) {
582 return NULL;
583 }
584
585 if ((sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP)) < 0) {
586 return NULL;
587 }
588
589 for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
590 if (!strcmp(ksp->ks_class, "net")) {
591 struct ifreq ifr;
592
593 kstat_read(kc, ksp, NULL);
594
595 strncpy(ifr.ifr_name, ksp->ks_name, sizeof ifr.ifr_name);
596 if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0) {
597 /* Not a network interface. */
598 continue;
599 }
600
601 network_iface_stats = network_iface_stat_malloc(ifaces + 1, &sizeof_network_iface_stats, network_iface_stats);
602 if (network_iface_stats == NULL) {
603 return NULL;
604 }
605 network_iface_stat_ptr = network_iface_stats + ifaces;
606 ifaces++;
607
608 if (network_iface_stat_ptr->interface_name != NULL) free(network_iface_stat_ptr->interface_name);
609 network_iface_stat_ptr->interface_name = strdup(ksp->ks_name);
610 if (network_iface_stat_ptr->interface_name == NULL) return NULL;
611
612 if ((ifr.ifr_flags & IFF_UP) != 0) {
613 network_iface_stat_ptr->up = 1;
614 } else {
615 network_iface_stat_ptr->up = 1;
616 }
617
618 if ((knp = kstat_data_lookup(ksp, "ifspeed")) != NULL) {
619 network_iface_stat_ptr->speed = knp->value.ui64 / (1000 * 1000);
620 } else {
621 network_iface_stat_ptr->speed = 0;
622 }
623
624 network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
625 if ((knp = kstat_data_lookup(ksp, "link_duplex")) != NULL) {
626 switch (knp->value.ui32) {
627 case 1:
628 network_iface_stat_ptr->dup = HALF_DUPLEX;
629 break;
630 case 2:
631 network_iface_stat_ptr->dup = FULL_DUPLEX;
632 break;
633 }
634 }
635 }
636 }
637
638 close(sock);
639 kstat_close(kc);
640 #endif
641 #ifdef LINUX
642 f = fopen("/proc/net/dev", "r");
643 if(f == NULL){
644 return NULL;
645 }
646
647 /* Setup stuff so we can do the ioctl to get the info */
648 if((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0){
649 return NULL;
650 }
651
652 /* Ignore first 2 lines.. Just headings */
653 if((fgets(line, sizeof(line), f)) == NULL) return NULL;
654 if((fgets(line, sizeof(line), f)) == NULL) return NULL;
655
656 while((fgets(line, sizeof(line), f)) != NULL){
657 char *name, *ptr;
658 struct ifreq ifr;
659 struct ethtool_cmd ethcmd;
660 int err;
661
662 /* Get the interface name */
663 ptr = strchr(line, ':');
664 if (ptr == NULL) continue;
665 *ptr='\0';
666 name = line;
667 while(isspace(*(name))){
668 name++;
669 }
670
671 memset(&ifr, 0, sizeof ifr);
672 strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
673
674 if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0) {
675 continue;
676 }
677
678 /* We have a good interface to add */
679 network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
680 if(network_iface_stats==NULL){
681 return NULL;
682 }
683 network_iface_stat_ptr = network_iface_stats + ifaces;
684 network_iface_stat_ptr->interface_name = strdup(name);
685 if ((ifr.ifr_flags & IFF_UP) != 0) {
686 network_iface_stat_ptr->up = 1;
687 } else {
688 network_iface_stat_ptr->up = 0;
689 }
690
691 memset(&ethcmd, 0, sizeof ethcmd);
692 ethcmd.cmd = ETHTOOL_GSET;
693 ifr.ifr_data = (caddr_t) &ethcmd;
694
695 err = ioctl(sock, SIOCETHTOOL, &ifr);
696 if (err == 0) {
697 network_iface_stat_ptr->speed = ethcmd.speed;
698
699 switch (ethcmd.duplex) {
700 case 0x00:
701 network_iface_stat_ptr->dup = FULL_DUPLEX;
702 break;
703 case 0x01:
704 network_iface_stat_ptr->dup = HALF_DUPLEX;
705 break;
706 default:
707 network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
708 }
709 } else {
710 /* Not all interfaces support the ethtool ioctl. */
711 network_iface_stat_ptr->speed = 0;
712 network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
713 }
714
715 ifaces++;
716 }
717 close(sock);
718 fclose(f);
719 #endif
720 *entries = ifaces;
721 return network_iface_stats;
722 }
723