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root/i-scream/projects/libstatgrab/src/libstatgrab/network_stats.c
Revision: 1.75
Committed: Sat Jul 30 13:23:46 2005 UTC (18 years, 9 months ago) by ats
Content type: text/plain
Branch: MAIN
CVS Tags: LIBSTATGRAB_0_12
Changes since 1.74: +4 -11 lines
Log Message:
Use <asm/types.h> to define __u32 etc., and always define u32 etc. because
the Debian 2.6.0-test9 headers still use them in ethtool.h.

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 1.74 2005/07/13 09:31:54 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 #include <linux/version.h>
53 #include <asm/types.h>
54 /* These aren't defined by asm/types.h unless the kernel is being
55 compiled, but some versions of ethtool.h need them. */
56 typedef __uint8_t u8;
57 typedef __uint16_t u16;
58 typedef __uint32_t u32;
59 typedef __uint64_t u64;
60 #include <linux/ethtool.h>
61 #include <linux/sockios.h>
62 #include <unistd.h>
63 #endif
64 #ifdef ALLBSD
65 #include <sys/types.h>
66 #include <sys/socket.h>
67 #include <ifaddrs.h>
68 #include <net/if.h>
69 #include <net/if_media.h>
70 #include <sys/ioctl.h>
71 #include <unistd.h>
72 #endif
73
74 static void network_stat_init(sg_network_io_stats *s) {
75 s->interface_name = NULL;
76 s->tx = 0;
77 s->rx = 0;
78 s->ipackets = 0;
79 s->opackets = 0;
80 s->ierrors = 0;
81 s->oerrors = 0;
82 s->collisions = 0;
83 }
84
85 static void network_stat_destroy(sg_network_io_stats *s) {
86 free(s->interface_name);
87 }
88
89 VECTOR_DECLARE_STATIC(network_stats, sg_network_io_stats, 5,
90 network_stat_init, network_stat_destroy);
91
92 sg_network_io_stats *sg_get_network_io_stats(int *entries){
93 int interfaces;
94 sg_network_io_stats *network_stat_ptr;
95
96 #ifdef SOLARIS
97 kstat_ctl_t *kc;
98 kstat_t *ksp;
99 kstat_named_t *knp;
100 #endif
101
102 #ifdef LINUX
103 FILE *f;
104 /* Horrible big enough, but it should be easily big enough */
105 char line[8096];
106 regex_t regex;
107 regmatch_t line_match[9];
108 #endif
109 #ifdef ALLBSD
110 struct ifaddrs *net, *net_ptr;
111 struct if_data *net_data;
112 #endif
113
114 #ifdef ALLBSD
115 if(getifaddrs(&net) != 0){
116 sg_set_error_with_errno(SG_ERROR_GETIFADDRS, NULL);
117 return NULL;
118 }
119
120 interfaces=0;
121
122 for(net_ptr=net;net_ptr!=NULL;net_ptr=net_ptr->ifa_next){
123 if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
124
125 if (VECTOR_RESIZE(network_stats, interfaces + 1) < 0) {
126 return NULL;
127 }
128 network_stat_ptr=network_stats+interfaces;
129
130 if (sg_update_string(&network_stat_ptr->interface_name,
131 net_ptr->ifa_name) < 0) {
132 return NULL;
133 }
134 net_data=(struct if_data *)net_ptr->ifa_data;
135 network_stat_ptr->rx=net_data->ifi_ibytes;
136 network_stat_ptr->tx=net_data->ifi_obytes;
137 network_stat_ptr->ipackets=net_data->ifi_ipackets;
138 network_stat_ptr->opackets=net_data->ifi_opackets;
139 network_stat_ptr->ierrors=net_data->ifi_ierrors;
140 network_stat_ptr->oerrors=net_data->ifi_oerrors;
141 network_stat_ptr->collisions=net_data->ifi_collisions;
142 network_stat_ptr->systime=time(NULL);
143 interfaces++;
144 }
145 freeifaddrs(net);
146 #endif
147
148 #ifdef SOLARIS
149 if ((kc = kstat_open()) == NULL) {
150 sg_set_error(SG_ERROR_KSTAT_OPEN, NULL);
151 return NULL;
152 }
153
154 interfaces=0;
155
156 for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
157 if (!strcmp(ksp->ks_class, "net")) {
158 kstat_read(kc, ksp, NULL);
159
160 #ifdef SOL7
161 #define LRX "rbytes"
162 #define LTX "obytes"
163 #define LIPACKETS "ipackets"
164 #define LOPACKETS "opackets"
165 #define VALTYPE value.ui32
166 #else
167 #define LRX "rbytes64"
168 #define LTX "obytes64"
169 #define LIPACKETS "ipackets64"
170 #define LOPACKETS "opackets64"
171 #define VALTYPE value.ui64
172 #endif
173
174 /* Read rx */
175 if((knp=kstat_data_lookup(ksp, LRX))==NULL){
176 /* This is a network interface, but it doesn't
177 * have the rbytes/obytes values; for instance,
178 * the loopback devices have this behaviour
179 * (although they do track packets in/out). */
180 /* FIXME: Show packet counts when byte counts
181 * not available. */
182 continue;
183 }
184
185 /* Create new network_stats */
186 if (VECTOR_RESIZE(network_stats, interfaces + 1) < 0) {
187 return NULL;
188 }
189 network_stat_ptr=network_stats+interfaces;
190
191 /* Finish reading rx */
192 network_stat_ptr->rx=knp->VALTYPE;
193
194 /* Read tx */
195 if((knp=kstat_data_lookup(ksp, LTX))==NULL){
196 continue;
197 }
198 network_stat_ptr->tx=knp->VALTYPE;
199
200 /* Read ipackets */
201 if((knp=kstat_data_lookup(ksp, LIPACKETS))==NULL){
202 continue;
203 }
204 network_stat_ptr->ipackets=knp->VALTYPE;
205
206 /* Read opackets */
207 if((knp=kstat_data_lookup(ksp, LOPACKETS))==NULL){
208 continue;
209 }
210 network_stat_ptr->opackets=knp->VALTYPE;
211
212 /* Read ierrors */
213 if((knp=kstat_data_lookup(ksp, "ierrors"))==NULL){
214 continue;
215 }
216 network_stat_ptr->ierrors=knp->value.ui32;
217
218 /* Read oerrors */
219 if((knp=kstat_data_lookup(ksp, "oerrors"))==NULL){
220 continue;
221 }
222 network_stat_ptr->oerrors=knp->value.ui32;
223
224 /* Read collisions */
225 if((knp=kstat_data_lookup(ksp, "collisions"))==NULL){
226 continue;
227 }
228 network_stat_ptr->collisions=knp->value.ui32;
229
230 /* Read interface name */
231 if (sg_update_string(&network_stat_ptr->interface_name,
232 ksp->ks_name) < 0) {
233 return NULL;
234 }
235
236 /* Store systime */
237 network_stat_ptr->systime=time(NULL);
238
239 interfaces++;
240 }
241 }
242
243 kstat_close(kc);
244 #endif
245 #ifdef LINUX
246 f=fopen("/proc/net/dev", "r");
247 if(f==NULL){
248 sg_set_error_with_errno(SG_ERROR_OPEN, "/proc/net/dev");
249 return NULL;
250 }
251 /* read the 2 lines.. Its the title, so we dont care :) */
252 fgets(line, sizeof(line), f);
253 fgets(line, sizeof(line), f);
254
255
256 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){
257 sg_set_error(SG_ERROR_PARSE, NULL);
258 return NULL;
259 }
260
261 interfaces=0;
262
263 while((fgets(line, sizeof(line), f)) != NULL){
264 if((regexec(&regex, line, 9, line_match, 0))!=0){
265 continue;
266 }
267
268 if (VECTOR_RESIZE(network_stats, interfaces + 1) < 0) {
269 return NULL;
270 }
271 network_stat_ptr=network_stats+interfaces;
272
273 if(network_stat_ptr->interface_name!=NULL){
274 free(network_stat_ptr->interface_name);
275 }
276
277 network_stat_ptr->interface_name=sg_get_string_match(line, &line_match[1]);
278 network_stat_ptr->rx=sg_get_ll_match(line, &line_match[2]);
279 network_stat_ptr->tx=sg_get_ll_match(line, &line_match[5]);
280 network_stat_ptr->ipackets=sg_get_ll_match(line, &line_match[3]);
281 network_stat_ptr->opackets=sg_get_ll_match(line, &line_match[6]);
282 network_stat_ptr->ierrors=sg_get_ll_match(line, &line_match[4]);
283 network_stat_ptr->oerrors=sg_get_ll_match(line, &line_match[7]);
284 network_stat_ptr->collisions=sg_get_ll_match(line, &line_match[8]);
285 network_stat_ptr->systime=time(NULL);
286
287 interfaces++;
288 }
289 fclose(f);
290 regfree(&regex);
291
292 #endif
293
294 #ifdef CYGWIN
295 sg_set_error(SG_ERROR_UNSUPPORTED, "Cygwin");
296 return NULL;
297 #endif
298 #ifdef HPUX
299 sg_set_error(SG_ERROR_UNSUPPORTED, "HP-UX");
300 return NULL;
301 #endif
302
303 *entries=interfaces;
304
305 return network_stats;
306 }
307
308 static long long transfer_diff(long long new, long long old){
309 #if defined(SOL7) || defined(LINUX) || defined(FREEBSD) || defined(DFBSD) || defined(OPENBSD)
310 /* 32-bit quantities, so we must explicitly deal with wraparound. */
311 #define MAXVAL 0x100000000LL
312 if (new >= old) {
313 return new - old;
314 } else {
315 return MAXVAL + new - old;
316 }
317 #else
318 /* 64-bit quantities, so plain subtraction works. */
319 return new - old;
320 #endif
321 }
322
323 sg_network_io_stats *sg_get_network_io_stats_diff(int *entries) {
324 VECTOR_DECLARE_STATIC(diff, sg_network_io_stats, 1,
325 network_stat_init, network_stat_destroy);
326 sg_network_io_stats *src = NULL, *dest;
327 int i, j, diff_count, new_count;
328
329 if (network_stats == NULL) {
330 /* No previous stats, so we can't calculate a difference. */
331 return sg_get_network_io_stats(entries);
332 }
333
334 /* Resize the results array to match the previous stats. */
335 diff_count = VECTOR_SIZE(network_stats);
336 if (VECTOR_RESIZE(diff, diff_count) < 0) {
337 return NULL;
338 }
339
340 /* Copy the previous stats into the result. */
341 for (i = 0; i < diff_count; i++) {
342 src = &network_stats[i];
343 dest = &diff[i];
344
345 if (sg_update_string(&dest->interface_name,
346 src->interface_name) < 0) {
347 return NULL;
348 }
349 dest->rx = src->rx;
350 dest->tx = src->tx;
351 dest->ipackets = src->ipackets;
352 dest->opackets = src->opackets;
353 dest->ierrors = src->ierrors;
354 dest->oerrors = src->oerrors;
355 dest->collisions = src->collisions;
356 dest->systime = src->systime;
357 }
358
359 /* Get a new set of stats. */
360 if (sg_get_network_io_stats(&new_count) == NULL) {
361 return NULL;
362 }
363
364 /* For each previous stat... */
365 for (i = 0; i < diff_count; i++) {
366 dest = &diff[i];
367
368 /* ... find the corresponding new stat ... */
369 for (j = 0; j < new_count; j++) {
370 /* Try the new stat in the same position first,
371 since that's most likely to be it. */
372 src = &network_stats[(i + j) % new_count];
373 if (strcmp(src->interface_name, dest->interface_name) == 0) {
374 break;
375 }
376 }
377 if (j == new_count) {
378 /* No match found. */
379 continue;
380 }
381
382 /* ... and subtract the previous stat from it to get the
383 difference. */
384 dest->rx = transfer_diff(src->rx, dest->rx);
385 dest->tx = transfer_diff(src->tx, dest->tx);
386 dest->ipackets = transfer_diff(src->ipackets, dest->ipackets);
387 dest->opackets = transfer_diff(src->opackets, dest->opackets);
388 dest->ierrors = transfer_diff(src->ierrors, dest->ierrors);
389 dest->oerrors = transfer_diff(src->oerrors, dest->oerrors);
390 dest->collisions = transfer_diff(src->collisions, dest->collisions);
391 dest->systime = src->systime - dest->systime;
392 }
393
394 *entries = diff_count;
395 return diff;
396 }
397
398 int sg_network_io_compare_name(const void *va, const void *vb) {
399 const sg_network_io_stats *a = (const sg_network_io_stats *)va;
400 const sg_network_io_stats *b = (const sg_network_io_stats *)vb;
401
402 return strcmp(a->interface_name, b->interface_name);
403 }
404
405 /* NETWORK INTERFACE STATS */
406
407 static void network_iface_stat_init(sg_network_iface_stats *s) {
408 s->interface_name = NULL;
409 s->speed = 0;
410 s->duplex = SG_IFACE_DUPLEX_UNKNOWN;
411 }
412
413 static void network_iface_stat_destroy(sg_network_iface_stats *s) {
414 free(s->interface_name);
415 }
416
417 sg_network_iface_stats *sg_get_network_iface_stats(int *entries){
418 VECTOR_DECLARE_STATIC(network_iface_stats, sg_network_iface_stats, 5,
419 network_iface_stat_init, network_iface_stat_destroy);
420 sg_network_iface_stats *network_iface_stat_ptr;
421 int ifaces = 0;
422
423 #ifdef SOLARIS
424 kstat_ctl_t *kc;
425 kstat_t *ksp;
426 kstat_named_t *knp;
427 int sock;
428 #endif
429 #ifdef ALLBSD
430 struct ifaddrs *net, *net_ptr;
431 struct ifmediareq ifmed;
432 struct ifreq ifr;
433 int sock;
434 int x;
435 #endif
436 #ifdef LINUX
437 FILE *f;
438 /* Horrible big enough, but it should be easily big enough */
439 char line[8096];
440 int sock;
441 #endif
442
443 #ifdef ALLBSD
444 if(getifaddrs(&net) != 0){
445 sg_set_error_with_errno(SG_ERROR_GETIFADDRS, NULL);
446 return NULL;
447 }
448
449 if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) == 0) return NULL;
450
451 for(net_ptr=net; net_ptr!=NULL; net_ptr=net_ptr->ifa_next){
452 if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
453
454 if (VECTOR_RESIZE(network_iface_stats, ifaces + 1) < 0) {
455 return NULL;
456 }
457 network_iface_stat_ptr = network_iface_stats + ifaces;
458
459 memset(&ifr, 0, sizeof(ifr));
460 strncpy(ifr.ifr_name, net_ptr->ifa_name, sizeof(ifr.ifr_name));
461
462 if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0){
463 continue;
464 }
465 if((ifr.ifr_flags & IFF_UP) != 0){
466 network_iface_stat_ptr->up = 1;
467 }else{
468 network_iface_stat_ptr->up = 0;
469 }
470
471 if (sg_update_string(&network_iface_stat_ptr->interface_name,
472 net_ptr->ifa_name) < 0) {
473 return NULL;
474 }
475
476 network_iface_stat_ptr->speed = 0;
477 network_iface_stat_ptr->duplex = SG_IFACE_DUPLEX_UNKNOWN;
478 ifaces++;
479
480 memset(&ifmed, 0, sizeof(struct ifmediareq));
481 sg_strlcpy(ifmed.ifm_name, net_ptr->ifa_name, sizeof(ifmed.ifm_name));
482 if(ioctl(sock, SIOCGIFMEDIA, (caddr_t)&ifmed) == -1){
483 /* Not all interfaces support the media ioctls. */
484 continue;
485 }
486
487 /* We may need to change this if we start doing wireless devices too */
488 if( (ifmed.ifm_active | IFM_ETHER) != ifmed.ifm_active ){
489 /* Not a ETHER device */
490 continue;
491 }
492
493 /* Only intrested in the first 4 bits) - Assuming only ETHER devices */
494 x = ifmed.ifm_active & 0x0f;
495 switch(x){
496 /* 10 Mbit connections. Speedy :) */
497 case(IFM_10_T):
498 case(IFM_10_2):
499 case(IFM_10_5):
500 case(IFM_10_STP):
501 case(IFM_10_FL):
502 network_iface_stat_ptr->speed = 10;
503 break;
504 /* 100 Mbit conneections */
505 case(IFM_100_TX):
506 case(IFM_100_FX):
507 case(IFM_100_T4):
508 case(IFM_100_VG):
509 case(IFM_100_T2):
510 network_iface_stat_ptr->speed = 100;
511 break;
512 /* 1000 Mbit connections */
513 case(IFM_1000_SX):
514 case(IFM_1000_LX):
515 case(IFM_1000_CX):
516 #if defined(IFM_1000_TX) && !defined(OPENBSD)
517 case(IFM_1000_TX): /* FreeBSD 4 and others (but NOT OpenBSD)? */
518 #endif
519 #ifdef IFM_1000_FX
520 case(IFM_1000_FX): /* FreeBSD 4 */
521 #endif
522 #ifdef IFM_1000_T
523 case(IFM_1000_T): /* FreeBSD 5 */
524 #endif
525 network_iface_stat_ptr->speed = 1000;
526 break;
527 /* We don't know what it is */
528 default:
529 network_iface_stat_ptr->speed = 0;
530 break;
531 }
532
533 if( (ifmed.ifm_active | IFM_FDX) == ifmed.ifm_active ){
534 network_iface_stat_ptr->duplex = SG_IFACE_DUPLEX_FULL;
535 }else if( (ifmed.ifm_active | IFM_HDX) == ifmed.ifm_active ){
536 network_iface_stat_ptr->duplex = SG_IFACE_DUPLEX_HALF;
537 }else{
538 network_iface_stat_ptr->duplex = SG_IFACE_DUPLEX_UNKNOWN;
539 }
540
541 }
542 freeifaddrs(net);
543 close(sock);
544 #endif
545
546 #ifdef SOLARIS
547 if ((kc = kstat_open()) == NULL) {
548 sg_set_error(SG_ERROR_KSTAT_OPEN, NULL);
549 return NULL;
550 }
551
552 if ((sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP)) < 0) {
553 sg_set_error_with_errno(SG_ERROR_SOCKET, NULL);
554 return NULL;
555 }
556
557 for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
558 if (!strcmp(ksp->ks_class, "net")) {
559 struct ifreq ifr;
560
561 kstat_read(kc, ksp, NULL);
562
563 strncpy(ifr.ifr_name, ksp->ks_name, sizeof ifr.ifr_name);
564 if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0) {
565 /* Not a network interface. */
566 continue;
567 }
568
569 if (VECTOR_RESIZE(network_iface_stats, ifaces + 1) < 0) {
570 return NULL;
571 }
572 network_iface_stat_ptr = network_iface_stats + ifaces;
573 ifaces++;
574
575 if (sg_update_string(&network_iface_stat_ptr->interface_name,
576 ksp->ks_name) < 0) {
577 return NULL;
578 }
579
580 if ((ifr.ifr_flags & IFF_UP) != 0) {
581 network_iface_stat_ptr->up = 1;
582 } else {
583 network_iface_stat_ptr->up = 1;
584 }
585
586 if ((knp = kstat_data_lookup(ksp, "ifspeed")) != NULL) {
587 network_iface_stat_ptr->speed = knp->value.ui64 / (1000 * 1000);
588 } else {
589 network_iface_stat_ptr->speed = 0;
590 }
591
592 network_iface_stat_ptr->duplex = SG_IFACE_DUPLEX_UNKNOWN;
593 if ((knp = kstat_data_lookup(ksp, "link_duplex")) != NULL) {
594 switch (knp->value.ui32) {
595 case 1:
596 network_iface_stat_ptr->duplex = SG_IFACE_DUPLEX_HALF;
597 break;
598 case 2:
599 network_iface_stat_ptr->duplex = SG_IFACE_DUPLEX_FULL;
600 break;
601 }
602 }
603 }
604 }
605
606 close(sock);
607 kstat_close(kc);
608 #endif
609 #ifdef LINUX
610 f = fopen("/proc/net/dev", "r");
611 if(f == NULL){
612 sg_set_error_with_errno(SG_ERROR_OPEN, "/proc/net/dev");
613 return NULL;
614 }
615
616 /* Setup stuff so we can do the ioctl to get the info */
617 if((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0){
618 sg_set_error_with_errno(SG_ERROR_SOCKET, NULL);
619 return NULL;
620 }
621
622 /* Ignore first 2 lines.. Just headings */
623 if((fgets(line, sizeof(line), f)) == NULL) {
624 sg_set_error(SG_ERROR_PARSE, NULL);
625 return NULL;
626 }
627 if((fgets(line, sizeof(line), f)) == NULL) {
628 sg_set_error(SG_ERROR_PARSE, NULL);
629 return NULL;
630 }
631
632 while((fgets(line, sizeof(line), f)) != NULL){
633 char *name, *ptr;
634 struct ifreq ifr;
635 struct ethtool_cmd ethcmd;
636 int err;
637
638 /* Get the interface name */
639 ptr = strchr(line, ':');
640 if (ptr == NULL) continue;
641 *ptr='\0';
642 name = line;
643 while(isspace(*(name))){
644 name++;
645 }
646
647 memset(&ifr, 0, sizeof ifr);
648 strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
649
650 if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0) {
651 continue;
652 }
653
654 /* We have a good interface to add */
655 if (VECTOR_RESIZE(network_iface_stats, ifaces + 1) < 0) {
656 return NULL;
657 }
658 network_iface_stat_ptr = network_iface_stats + ifaces;
659
660 if (sg_update_string(&network_iface_stat_ptr->interface_name,
661 name) < 0) {
662 return NULL;
663 }
664 if ((ifr.ifr_flags & IFF_UP) != 0) {
665 network_iface_stat_ptr->up = 1;
666 } else {
667 network_iface_stat_ptr->up = 0;
668 }
669
670 memset(&ethcmd, 0, sizeof ethcmd);
671 ethcmd.cmd = ETHTOOL_GSET;
672 ifr.ifr_data = (caddr_t) &ethcmd;
673
674 err = ioctl(sock, SIOCETHTOOL, &ifr);
675 if (err == 0) {
676 network_iface_stat_ptr->speed = ethcmd.speed;
677
678 switch (ethcmd.duplex) {
679 case DUPLEX_FULL:
680 network_iface_stat_ptr->duplex = SG_IFACE_DUPLEX_FULL;
681 break;
682 case DUPLEX_HALF:
683 network_iface_stat_ptr->duplex = SG_IFACE_DUPLEX_HALF;
684 break;
685 default:
686 network_iface_stat_ptr->duplex = SG_IFACE_DUPLEX_UNKNOWN;
687 }
688 } else {
689 /* Not all interfaces support the ethtool ioctl. */
690 network_iface_stat_ptr->speed = 0;
691 network_iface_stat_ptr->duplex = SG_IFACE_DUPLEX_UNKNOWN;
692 }
693
694 ifaces++;
695 }
696 close(sock);
697 fclose(f);
698 #endif
699 #ifdef CYGWIN
700 sg_set_error(SG_ERROR_UNSUPPORTED, "Cygwin");
701 return NULL;
702 #endif
703 #ifdef HPUX
704 sg_set_error(SG_ERROR_UNSUPPORTED, "HP-UX");
705 return NULL;
706 #endif
707
708 #ifdef SG_ENABLE_DEPRECATED
709 network_iface_stat_ptr->dup = network_iface_stat_ptr->duplex;
710 #endif
711
712 *entries = ifaces;
713 return network_iface_stats;
714 }
715
716 int sg_network_iface_compare_name(const void *va, const void *vb) {
717 const sg_network_iface_stats *a = (const sg_network_iface_stats *)va;
718 const sg_network_iface_stats *b = (const sg_network_iface_stats *)vb;
719
720 return strcmp(a->interface_name, b->interface_name);
721 }
722