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root/i-scream/projects/libstatgrab/src/libstatgrab/network_stats.c
Revision: 1.73
Committed: Mon Apr 25 14:12:05 2005 UTC (19 years ago) by tdb
Content type: text/plain
Branch: MAIN
Changes since 1.72: +9 -1 lines
Log Message:
Apply patch from Scott Lampert to make the network ethtool bits compile
on Linux 2.6.

File Contents

# Content
1 /*
2 * i-scream libstatgrab
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 1.72 2005/02/24 18:35:11 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 "vector.h"
32 #include "tools.h"
33 #include <time.h>
34 #ifdef SOLARIS
35 #include <kstat.h>
36 #include <sys/sysinfo.h>
37 #include <sys/types.h>
38 #include <sys/socket.h>
39 #include <sys/ioctl.h>
40 #include <net/if.h>
41 #include <netinet/in.h>
42 #include <sys/sockio.h>
43 #include <unistd.h>
44 #endif
45 #ifdef LINUX
46 #include <stdio.h>
47 #include <sys/types.h>
48 #include <sys/ioctl.h>
49 #include <sys/socket.h>
50 #include <net/if.h>
51 #include <ctype.h>
52 /* Stuff which could be defined by defining KERNEL, but
53 * that would be a bad idea, so we'll just declare it here
54 */
55 #include <linux/version.h>
56 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
57 typedef __uint8_t __u8;
58 typedef __uint16_t __u16;
59 typedef __uint32_t __u32;
60 typedef __uint64_t __u64;
61 #else
62 typedef __uint8_t u8;
63 typedef __uint16_t u16;
64 typedef __uint32_t u32;
65 typedef __uint64_t u64;
66 #endif
67 #include <linux/ethtool.h>
68 #include <linux/sockios.h>
69 #include <unistd.h>
70 #endif
71 #ifdef ALLBSD
72 #include <sys/types.h>
73 #include <sys/socket.h>
74 #include <ifaddrs.h>
75 #include <net/if.h>
76 #include <net/if_media.h>
77 #include <sys/ioctl.h>
78 #include <unistd.h>
79 #endif
80
81 static void network_stat_init(sg_network_io_stats *s) {
82 s->interface_name = NULL;
83 s->tx = 0;
84 s->rx = 0;
85 s->ipackets = 0;
86 s->opackets = 0;
87 s->ierrors = 0;
88 s->oerrors = 0;
89 s->collisions = 0;
90 }
91
92 static void network_stat_destroy(sg_network_io_stats *s) {
93 free(s->interface_name);
94 }
95
96 VECTOR_DECLARE_STATIC(network_stats, sg_network_io_stats, 5,
97 network_stat_init, network_stat_destroy);
98
99 sg_network_io_stats *sg_get_network_io_stats(int *entries){
100 int interfaces;
101 sg_network_io_stats *network_stat_ptr;
102
103 #ifdef SOLARIS
104 kstat_ctl_t *kc;
105 kstat_t *ksp;
106 kstat_named_t *knp;
107 #endif
108
109 #ifdef LINUX
110 FILE *f;
111 /* Horrible big enough, but it should be easily big enough */
112 char line[8096];
113 regex_t regex;
114 regmatch_t line_match[9];
115 #endif
116 #ifdef ALLBSD
117 struct ifaddrs *net, *net_ptr;
118 struct if_data *net_data;
119 #endif
120
121 #ifdef ALLBSD
122 if(getifaddrs(&net) != 0){
123 sg_set_error_with_errno(SG_ERROR_GETIFADDRS, NULL);
124 return NULL;
125 }
126
127 interfaces=0;
128
129 for(net_ptr=net;net_ptr!=NULL;net_ptr=net_ptr->ifa_next){
130 if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
131
132 if (VECTOR_RESIZE(network_stats, interfaces + 1) < 0) {
133 return NULL;
134 }
135 network_stat_ptr=network_stats+interfaces;
136
137 if (sg_update_string(&network_stat_ptr->interface_name,
138 net_ptr->ifa_name) < 0) {
139 return NULL;
140 }
141 net_data=(struct if_data *)net_ptr->ifa_data;
142 network_stat_ptr->rx=net_data->ifi_ibytes;
143 network_stat_ptr->tx=net_data->ifi_obytes;
144 network_stat_ptr->ipackets=net_data->ifi_ipackets;
145 network_stat_ptr->opackets=net_data->ifi_opackets;
146 network_stat_ptr->ierrors=net_data->ifi_ierrors;
147 network_stat_ptr->oerrors=net_data->ifi_oerrors;
148 network_stat_ptr->collisions=net_data->ifi_collisions;
149 network_stat_ptr->systime=time(NULL);
150 interfaces++;
151 }
152 freeifaddrs(net);
153 #endif
154
155 #ifdef SOLARIS
156 if ((kc = kstat_open()) == NULL) {
157 sg_set_error(SG_ERROR_KSTAT_OPEN, NULL);
158 return NULL;
159 }
160
161 interfaces=0;
162
163 for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
164 if (!strcmp(ksp->ks_class, "net")) {
165 kstat_read(kc, ksp, NULL);
166
167 #ifdef SOL7
168 #define LRX "rbytes"
169 #define LTX "obytes"
170 #define LIPACKETS "ipackets"
171 #define LOPACKETS "opackets"
172 #define VALTYPE value.ui32
173 #else
174 #define LRX "rbytes64"
175 #define LTX "obytes64"
176 #define LIPACKETS "ipackets64"
177 #define LOPACKETS "opackets64"
178 #define VALTYPE value.ui64
179 #endif
180
181 /* Read rx */
182 if((knp=kstat_data_lookup(ksp, LRX))==NULL){
183 /* This is a network interface, but it doesn't
184 * have the rbytes/obytes values; for instance,
185 * the loopback devices have this behaviour
186 * (although they do track packets in/out). */
187 /* FIXME: Show packet counts when byte counts
188 * not available. */
189 continue;
190 }
191
192 /* Create new network_stats */
193 if (VECTOR_RESIZE(network_stats, interfaces + 1) < 0) {
194 return NULL;
195 }
196 network_stat_ptr=network_stats+interfaces;
197
198 /* Finish reading rx */
199 network_stat_ptr->rx=knp->VALTYPE;
200
201 /* Read tx */
202 if((knp=kstat_data_lookup(ksp, LTX))==NULL){
203 continue;
204 }
205 network_stat_ptr->tx=knp->VALTYPE;
206
207 /* Read ipackets */
208 if((knp=kstat_data_lookup(ksp, LIPACKETS))==NULL){
209 continue;
210 }
211 network_stat_ptr->ipackets=knp->VALTYPE;
212
213 /* Read opackets */
214 if((knp=kstat_data_lookup(ksp, LOPACKETS))==NULL){
215 continue;
216 }
217 network_stat_ptr->opackets=knp->VALTYPE;
218
219 /* Read ierrors */
220 if((knp=kstat_data_lookup(ksp, "ierrors"))==NULL){
221 continue;
222 }
223 network_stat_ptr->ierrors=knp->value.ui32;
224
225 /* Read oerrors */
226 if((knp=kstat_data_lookup(ksp, "oerrors"))==NULL){
227 continue;
228 }
229 network_stat_ptr->oerrors=knp->value.ui32;
230
231 /* Read collisions */
232 if((knp=kstat_data_lookup(ksp, "collisions"))==NULL){
233 continue;
234 }
235 network_stat_ptr->collisions=knp->value.ui32;
236
237 /* Read interface name */
238 if (sg_update_string(&network_stat_ptr->interface_name,
239 ksp->ks_name) < 0) {
240 return NULL;
241 }
242
243 /* Store systime */
244 network_stat_ptr->systime=time(NULL);
245
246 interfaces++;
247 }
248 }
249
250 kstat_close(kc);
251 #endif
252 #ifdef LINUX
253 f=fopen("/proc/net/dev", "r");
254 if(f==NULL){
255 sg_set_error_with_errno(SG_ERROR_OPEN, "/proc/net/dev");
256 return NULL;
257 }
258 /* read the 2 lines.. Its the title, so we dont care :) */
259 fgets(line, sizeof(line), f);
260 fgets(line, sizeof(line), f);
261
262
263 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){
264 sg_set_error(SG_ERROR_PARSE, NULL);
265 return NULL;
266 }
267
268 interfaces=0;
269
270 while((fgets(line, sizeof(line), f)) != NULL){
271 if((regexec(&regex, line, 9, line_match, 0))!=0){
272 continue;
273 }
274
275 if (VECTOR_RESIZE(network_stats, interfaces + 1) < 0) {
276 return NULL;
277 }
278 network_stat_ptr=network_stats+interfaces;
279
280 if(network_stat_ptr->interface_name!=NULL){
281 free(network_stat_ptr->interface_name);
282 }
283
284 network_stat_ptr->interface_name=sg_get_string_match(line, &line_match[1]);
285 network_stat_ptr->rx=sg_get_ll_match(line, &line_match[2]);
286 network_stat_ptr->tx=sg_get_ll_match(line, &line_match[5]);
287 network_stat_ptr->ipackets=sg_get_ll_match(line, &line_match[3]);
288 network_stat_ptr->opackets=sg_get_ll_match(line, &line_match[6]);
289 network_stat_ptr->ierrors=sg_get_ll_match(line, &line_match[4]);
290 network_stat_ptr->oerrors=sg_get_ll_match(line, &line_match[7]);
291 network_stat_ptr->collisions=sg_get_ll_match(line, &line_match[8]);
292 network_stat_ptr->systime=time(NULL);
293
294 interfaces++;
295 }
296 fclose(f);
297 regfree(&regex);
298
299 #endif
300
301 #ifdef CYGWIN
302 sg_set_error(SG_ERROR_UNSUPPORTED, "Cygwin");
303 return NULL;
304 #endif
305 #ifdef HPUX
306 sg_set_error(SG_ERROR_UNSUPPORTED, "HP-UX");
307 return NULL;
308 #endif
309
310 *entries=interfaces;
311
312 return network_stats;
313 }
314
315 static long long transfer_diff(long long new, long long old){
316 #if defined(SOL7) || defined(LINUX) || defined(FREEBSD) || defined(DFBSD) || defined(OPENBSD)
317 /* 32-bit quantities, so we must explicitly deal with wraparound. */
318 #define MAXVAL 0x100000000LL
319 if (new >= old) {
320 return new - old;
321 } else {
322 return MAXVAL + new - old;
323 }
324 #else
325 /* 64-bit quantities, so plain subtraction works. */
326 return new - old;
327 #endif
328 }
329
330 sg_network_io_stats *sg_get_network_io_stats_diff(int *entries) {
331 VECTOR_DECLARE_STATIC(diff, sg_network_io_stats, 1,
332 network_stat_init, network_stat_destroy);
333 sg_network_io_stats *src = NULL, *dest;
334 int i, j, diff_count, new_count;
335
336 if (network_stats == NULL) {
337 /* No previous stats, so we can't calculate a difference. */
338 return sg_get_network_io_stats(entries);
339 }
340
341 /* Resize the results array to match the previous stats. */
342 diff_count = VECTOR_SIZE(network_stats);
343 if (VECTOR_RESIZE(diff, diff_count) < 0) {
344 return NULL;
345 }
346
347 /* Copy the previous stats into the result. */
348 for (i = 0; i < diff_count; i++) {
349 src = &network_stats[i];
350 dest = &diff[i];
351
352 if (sg_update_string(&dest->interface_name,
353 src->interface_name) < 0) {
354 return NULL;
355 }
356 dest->rx = src->rx;
357 dest->tx = src->tx;
358 dest->ipackets = src->ipackets;
359 dest->opackets = src->opackets;
360 dest->ierrors = src->ierrors;
361 dest->oerrors = src->oerrors;
362 dest->collisions = src->collisions;
363 dest->systime = src->systime;
364 }
365
366 /* Get a new set of stats. */
367 if (sg_get_network_io_stats(&new_count) == NULL) {
368 return NULL;
369 }
370
371 /* For each previous stat... */
372 for (i = 0; i < diff_count; i++) {
373 dest = &diff[i];
374
375 /* ... find the corresponding new stat ... */
376 for (j = 0; j < new_count; j++) {
377 /* Try the new stat in the same position first,
378 since that's most likely to be it. */
379 src = &network_stats[(i + j) % new_count];
380 if (strcmp(src->interface_name, dest->interface_name) == 0) {
381 break;
382 }
383 }
384 if (j == new_count) {
385 /* No match found. */
386 continue;
387 }
388
389 /* ... and subtract the previous stat from it to get the
390 difference. */
391 dest->rx = transfer_diff(src->rx, dest->rx);
392 dest->tx = transfer_diff(src->tx, dest->tx);
393 dest->ipackets = transfer_diff(src->ipackets, dest->ipackets);
394 dest->opackets = transfer_diff(src->opackets, dest->opackets);
395 dest->ierrors = transfer_diff(src->ierrors, dest->ierrors);
396 dest->oerrors = transfer_diff(src->oerrors, dest->oerrors);
397 dest->collisions = transfer_diff(src->collisions, dest->collisions);
398 dest->systime = src->systime - dest->systime;
399 }
400
401 *entries = diff_count;
402 return diff;
403 }
404
405 int sg_network_io_compare_name(const void *va, const void *vb) {
406 const sg_network_io_stats *a = (const sg_network_io_stats *)va;
407 const sg_network_io_stats *b = (const sg_network_io_stats *)vb;
408
409 return strcmp(a->interface_name, b->interface_name);
410 }
411
412 /* NETWORK INTERFACE STATS */
413
414 static void network_iface_stat_init(sg_network_iface_stats *s) {
415 s->interface_name = NULL;
416 s->speed = 0;
417 s->dup = SG_IFACE_DUPLEX_UNKNOWN;
418 }
419
420 static void network_iface_stat_destroy(sg_network_iface_stats *s) {
421 free(s->interface_name);
422 }
423
424 sg_network_iface_stats *sg_get_network_iface_stats(int *entries){
425 VECTOR_DECLARE_STATIC(network_iface_stats, sg_network_iface_stats, 5,
426 network_iface_stat_init, network_iface_stat_destroy);
427 sg_network_iface_stats *network_iface_stat_ptr;
428 int ifaces = 0;
429
430 #ifdef SOLARIS
431 kstat_ctl_t *kc;
432 kstat_t *ksp;
433 kstat_named_t *knp;
434 int sock;
435 #endif
436 #ifdef ALLBSD
437 struct ifaddrs *net, *net_ptr;
438 struct ifmediareq ifmed;
439 struct ifreq ifr;
440 int sock;
441 int x;
442 #endif
443 #ifdef LINUX
444 FILE *f;
445 /* Horrible big enough, but it should be easily big enough */
446 char line[8096];
447 int sock;
448 #endif
449
450 #ifdef ALLBSD
451 if(getifaddrs(&net) != 0){
452 sg_set_error_with_errno(SG_ERROR_GETIFADDRS, NULL);
453 return NULL;
454 }
455
456 if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) == 0) return NULL;
457
458 for(net_ptr=net; net_ptr!=NULL; net_ptr=net_ptr->ifa_next){
459 if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
460
461 if (VECTOR_RESIZE(network_iface_stats, ifaces + 1) < 0) {
462 return NULL;
463 }
464 network_iface_stat_ptr = network_iface_stats + ifaces;
465
466 memset(&ifr, 0, sizeof(ifr));
467 strncpy(ifr.ifr_name, net_ptr->ifa_name, sizeof(ifr.ifr_name));
468
469 if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0){
470 continue;
471 }
472 if((ifr.ifr_flags & IFF_UP) != 0){
473 network_iface_stat_ptr->up = 1;
474 }else{
475 network_iface_stat_ptr->up = 0;
476 }
477
478 if (sg_update_string(&network_iface_stat_ptr->interface_name,
479 net_ptr->ifa_name) < 0) {
480 return NULL;
481 }
482
483 network_iface_stat_ptr->speed = 0;
484 network_iface_stat_ptr->dup = SG_IFACE_DUPLEX_UNKNOWN;
485 ifaces++;
486
487 memset(&ifmed, 0, sizeof(struct ifmediareq));
488 sg_strlcpy(ifmed.ifm_name, net_ptr->ifa_name, sizeof(ifmed.ifm_name));
489 if(ioctl(sock, SIOCGIFMEDIA, (caddr_t)&ifmed) == -1){
490 /* Not all interfaces support the media ioctls. */
491 continue;
492 }
493
494 /* We may need to change this if we start doing wireless devices too */
495 if( (ifmed.ifm_active | IFM_ETHER) != ifmed.ifm_active ){
496 /* Not a ETHER device */
497 continue;
498 }
499
500 /* Only intrested in the first 4 bits) - Assuming only ETHER devices */
501 x = ifmed.ifm_active & 0x0f;
502 switch(x){
503 /* 10 Mbit connections. Speedy :) */
504 case(IFM_10_T):
505 case(IFM_10_2):
506 case(IFM_10_5):
507 case(IFM_10_STP):
508 case(IFM_10_FL):
509 network_iface_stat_ptr->speed = 10;
510 break;
511 /* 100 Mbit conneections */
512 case(IFM_100_TX):
513 case(IFM_100_FX):
514 case(IFM_100_T4):
515 case(IFM_100_VG):
516 case(IFM_100_T2):
517 network_iface_stat_ptr->speed = 100;
518 break;
519 /* 1000 Mbit connections */
520 case(IFM_1000_SX):
521 case(IFM_1000_LX):
522 case(IFM_1000_CX):
523 #if defined(IFM_1000_TX) && !defined(OPENBSD)
524 case(IFM_1000_TX): /* FreeBSD 4 and others (but NOT OpenBSD)? */
525 #endif
526 #ifdef IFM_1000_FX
527 case(IFM_1000_FX): /* FreeBSD 4 */
528 #endif
529 #ifdef IFM_1000_T
530 case(IFM_1000_T): /* FreeBSD 5 */
531 #endif
532 network_iface_stat_ptr->speed = 1000;
533 break;
534 /* We don't know what it is */
535 default:
536 network_iface_stat_ptr->speed = 0;
537 break;
538 }
539
540 if( (ifmed.ifm_active | IFM_FDX) == ifmed.ifm_active ){
541 network_iface_stat_ptr->dup = SG_IFACE_DUPLEX_FULL;
542 }else if( (ifmed.ifm_active | IFM_HDX) == ifmed.ifm_active ){
543 network_iface_stat_ptr->dup = SG_IFACE_DUPLEX_HALF;
544 }else{
545 network_iface_stat_ptr->dup = SG_IFACE_DUPLEX_UNKNOWN;
546 }
547
548 }
549 freeifaddrs(net);
550 close(sock);
551 #endif
552
553 #ifdef SOLARIS
554 if ((kc = kstat_open()) == NULL) {
555 sg_set_error(SG_ERROR_KSTAT_OPEN, NULL);
556 return NULL;
557 }
558
559 if ((sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP)) < 0) {
560 sg_set_error_with_errno(SG_ERROR_SOCKET, NULL);
561 return NULL;
562 }
563
564 for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
565 if (!strcmp(ksp->ks_class, "net")) {
566 struct ifreq ifr;
567
568 kstat_read(kc, ksp, NULL);
569
570 strncpy(ifr.ifr_name, ksp->ks_name, sizeof ifr.ifr_name);
571 if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0) {
572 /* Not a network interface. */
573 continue;
574 }
575
576 if (VECTOR_RESIZE(network_iface_stats, ifaces + 1) < 0) {
577 return NULL;
578 }
579 network_iface_stat_ptr = network_iface_stats + ifaces;
580 ifaces++;
581
582 if (sg_update_string(&network_iface_stat_ptr->interface_name,
583 ksp->ks_name) < 0) {
584 return NULL;
585 }
586
587 if ((ifr.ifr_flags & IFF_UP) != 0) {
588 network_iface_stat_ptr->up = 1;
589 } else {
590 network_iface_stat_ptr->up = 1;
591 }
592
593 if ((knp = kstat_data_lookup(ksp, "ifspeed")) != NULL) {
594 network_iface_stat_ptr->speed = knp->value.ui64 / (1000 * 1000);
595 } else {
596 network_iface_stat_ptr->speed = 0;
597 }
598
599 network_iface_stat_ptr->dup = SG_IFACE_DUPLEX_UNKNOWN;
600 if ((knp = kstat_data_lookup(ksp, "link_duplex")) != NULL) {
601 switch (knp->value.ui32) {
602 case 1:
603 network_iface_stat_ptr->dup = SG_IFACE_DUPLEX_HALF;
604 break;
605 case 2:
606 network_iface_stat_ptr->dup = SG_IFACE_DUPLEX_FULL;
607 break;
608 }
609 }
610 }
611 }
612
613 close(sock);
614 kstat_close(kc);
615 #endif
616 #ifdef LINUX
617 f = fopen("/proc/net/dev", "r");
618 if(f == NULL){
619 sg_set_error_with_errno(SG_ERROR_OPEN, "/proc/net/dev");
620 return NULL;
621 }
622
623 /* Setup stuff so we can do the ioctl to get the info */
624 if((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0){
625 sg_set_error_with_errno(SG_ERROR_SOCKET, NULL);
626 return NULL;
627 }
628
629 /* Ignore first 2 lines.. Just headings */
630 if((fgets(line, sizeof(line), f)) == NULL) {
631 sg_set_error(SG_ERROR_PARSE, NULL);
632 return NULL;
633 }
634 if((fgets(line, sizeof(line), f)) == NULL) {
635 sg_set_error(SG_ERROR_PARSE, NULL);
636 return NULL;
637 }
638
639 while((fgets(line, sizeof(line), f)) != NULL){
640 char *name, *ptr;
641 struct ifreq ifr;
642 struct ethtool_cmd ethcmd;
643 int err;
644
645 /* Get the interface name */
646 ptr = strchr(line, ':');
647 if (ptr == NULL) continue;
648 *ptr='\0';
649 name = line;
650 while(isspace(*(name))){
651 name++;
652 }
653
654 memset(&ifr, 0, sizeof ifr);
655 strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
656
657 if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0) {
658 continue;
659 }
660
661 /* We have a good interface to add */
662 if (VECTOR_RESIZE(network_iface_stats, ifaces + 1) < 0) {
663 return NULL;
664 }
665 network_iface_stat_ptr = network_iface_stats + ifaces;
666
667 if (sg_update_string(&network_iface_stat_ptr->interface_name,
668 name) < 0) {
669 return NULL;
670 }
671 if ((ifr.ifr_flags & IFF_UP) != 0) {
672 network_iface_stat_ptr->up = 1;
673 } else {
674 network_iface_stat_ptr->up = 0;
675 }
676
677 memset(&ethcmd, 0, sizeof ethcmd);
678 ethcmd.cmd = ETHTOOL_GSET;
679 ifr.ifr_data = (caddr_t) &ethcmd;
680
681 err = ioctl(sock, SIOCETHTOOL, &ifr);
682 if (err == 0) {
683 network_iface_stat_ptr->speed = ethcmd.speed;
684
685 switch (ethcmd.duplex) {
686 case DUPLEX_FULL:
687 network_iface_stat_ptr->dup = SG_IFACE_DUPLEX_FULL;
688 break;
689 case DUPLEX_HALF:
690 network_iface_stat_ptr->dup = SG_IFACE_DUPLEX_HALF;
691 break;
692 default:
693 network_iface_stat_ptr->dup = SG_IFACE_DUPLEX_UNKNOWN;
694 }
695 } else {
696 /* Not all interfaces support the ethtool ioctl. */
697 network_iface_stat_ptr->speed = 0;
698 network_iface_stat_ptr->dup = SG_IFACE_DUPLEX_UNKNOWN;
699 }
700
701 ifaces++;
702 }
703 close(sock);
704 fclose(f);
705 #endif
706 #ifdef CYGWIN
707 sg_set_error(SG_ERROR_UNSUPPORTED, "Cygwin");
708 return NULL;
709 #endif
710 #ifdef HPUX
711 sg_set_error(SG_ERROR_UNSUPPORTED, "HP-UX");
712 return NULL;
713 #endif
714
715 *entries = ifaces;
716 return network_iface_stats;
717 }
718
719 int sg_network_iface_compare_name(const void *va, const void *vb) {
720 const sg_network_iface_stats *a = (const sg_network_iface_stats *)va;
721 const sg_network_iface_stats *b = (const sg_network_iface_stats *)vb;
722
723 return strcmp(a->interface_name, b->interface_name);
724 }
725