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root/i-scream/projects/libstatgrab/src/libstatgrab/network_stats.c
Revision: 1.69
Committed: Sun Jul 18 21:30:11 2004 UTC (19 years, 10 months ago) by ats
Content type: text/plain
Branch: MAIN
CVS Tags: LIBSTATGRAB_0_10_3, LIBSTATGRAB_0_10_2, LIBSTATGRAB_0_10_1
Changes since 1.68: +7 -7 lines
Log Message:
Use sg_set_error_with_errno whenever errno's valid.
Change the one user of SG_ERROR_ENOENT to SG_ERROR_SYSCTL instead (since
that's what it should have been).

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 1.68 2004/04/08 13:44:44 ats 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 typedef __uint8_t u8;
56 typedef __uint16_t u16;
57 typedef __uint32_t u32;
58 typedef __uint64_t u64;
59 #include <linux/ethtool.h>
60 #include <linux/sockios.h>
61 #include <unistd.h>
62 #endif
63 #ifdef ALLBSD
64 #include <sys/types.h>
65 #include <sys/socket.h>
66 #include <ifaddrs.h>
67 #include <net/if.h>
68 #include <net/if_media.h>
69 #include <sys/ioctl.h>
70 #include <unistd.h>
71 #endif
72
73 static void network_stat_init(sg_network_io_stats *s) {
74 s->interface_name = NULL;
75 s->tx = 0;
76 s->rx = 0;
77 s->ipackets = 0;
78 s->opackets = 0;
79 s->ierrors = 0;
80 s->oerrors = 0;
81 s->collisions = 0;
82 }
83
84 static void network_stat_destroy(sg_network_io_stats *s) {
85 free(s->interface_name);
86 }
87
88 VECTOR_DECLARE_STATIC(network_stats, sg_network_io_stats, 5,
89 network_stat_init, network_stat_destroy);
90
91 sg_network_io_stats *sg_get_network_io_stats(int *entries){
92 int interfaces;
93 sg_network_io_stats *network_stat_ptr;
94
95 #ifdef SOLARIS
96 kstat_ctl_t *kc;
97 kstat_t *ksp;
98 kstat_named_t *knp;
99 #endif
100
101 #ifdef LINUX
102 FILE *f;
103 /* Horrible big enough, but it should be easily big enough */
104 char line[8096];
105 regex_t regex;
106 regmatch_t line_match[9];
107 #endif
108 #ifdef ALLBSD
109 struct ifaddrs *net, *net_ptr;
110 struct if_data *net_data;
111 #endif
112
113 #ifdef ALLBSD
114 if(getifaddrs(&net) != 0){
115 sg_set_error_with_errno(SG_ERROR_GETIFADDRS, NULL);
116 return NULL;
117 }
118
119 interfaces=0;
120
121 for(net_ptr=net;net_ptr!=NULL;net_ptr=net_ptr->ifa_next){
122 if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
123
124 if (VECTOR_RESIZE(network_stats, interfaces + 1) < 0) {
125 return NULL;
126 }
127 network_stat_ptr=network_stats+interfaces;
128
129 if (sg_update_string(&network_stat_ptr->interface_name,
130 net_ptr->ifa_name) < 0) {
131 return NULL;
132 }
133 net_data=(struct if_data *)net_ptr->ifa_data;
134 network_stat_ptr->rx=net_data->ifi_ibytes;
135 network_stat_ptr->tx=net_data->ifi_obytes;
136 network_stat_ptr->ipackets=net_data->ifi_ipackets;
137 network_stat_ptr->opackets=net_data->ifi_opackets;
138 network_stat_ptr->ierrors=net_data->ifi_ierrors;
139 network_stat_ptr->oerrors=net_data->ifi_oerrors;
140 network_stat_ptr->collisions=net_data->ifi_collisions;
141 network_stat_ptr->systime=time(NULL);
142 interfaces++;
143 }
144 freeifaddrs(net);
145 #endif
146
147 #ifdef SOLARIS
148 if ((kc = kstat_open()) == NULL) {
149 sg_set_error(SG_ERROR_KSTAT_OPEN, NULL);
150 return NULL;
151 }
152
153 interfaces=0;
154
155 for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
156 if (!strcmp(ksp->ks_class, "net")) {
157 kstat_read(kc, ksp, NULL);
158
159 #ifdef SOL7
160 #define LRX "rbytes"
161 #define LTX "obytes"
162 #define LIPACKETS "ipackets"
163 #define LOPACKETS "opackets"
164 #define VALTYPE value.ui32
165 #else
166 #define LRX "rbytes64"
167 #define LTX "obytes64"
168 #define LIPACKETS "ipackets64"
169 #define LOPACKETS "opackets64"
170 #define VALTYPE value.ui64
171 #endif
172
173 /* Read rx */
174 if((knp=kstat_data_lookup(ksp, LRX))==NULL){
175 /* This is a network interface, but it doesn't
176 * have the rbytes/obytes values; for instance,
177 * the loopback devices have this behaviour
178 * (although they do track packets in/out). */
179 /* FIXME: Show packet counts when byte counts
180 * not available. */
181 continue;
182 }
183
184 /* Create new network_stats */
185 if (VECTOR_RESIZE(network_stats, interfaces + 1) < 0) {
186 return NULL;
187 }
188 network_stat_ptr=network_stats+interfaces;
189
190 /* Finish reading rx */
191 network_stat_ptr->rx=knp->VALTYPE;
192
193 /* Read tx */
194 if((knp=kstat_data_lookup(ksp, LTX))==NULL){
195 continue;
196 }
197 network_stat_ptr->tx=knp->VALTYPE;
198
199 /* Read ipackets */
200 if((knp=kstat_data_lookup(ksp, LIPACKETS))==NULL){
201 continue;
202 }
203 network_stat_ptr->ipackets=knp->VALTYPE;
204
205 /* Read opackets */
206 if((knp=kstat_data_lookup(ksp, LOPACKETS))==NULL){
207 continue;
208 }
209 network_stat_ptr->opackets=knp->VALTYPE;
210
211 /* Read ierrors */
212 if((knp=kstat_data_lookup(ksp, "ierrors"))==NULL){
213 continue;
214 }
215 network_stat_ptr->ierrors=knp->value.ui32;
216
217 /* Read oerrors */
218 if((knp=kstat_data_lookup(ksp, "oerrors"))==NULL){
219 continue;
220 }
221 network_stat_ptr->oerrors=knp->value.ui32;
222
223 /* Read collisions */
224 if((knp=kstat_data_lookup(ksp, "collisions"))==NULL){
225 continue;
226 }
227 network_stat_ptr->collisions=knp->value.ui32;
228
229 /* Read interface name */
230 if (sg_update_string(&network_stat_ptr->interface_name,
231 ksp->ks_name) < 0) {
232 return NULL;
233 }
234
235 /* Store systime */
236 network_stat_ptr->systime=time(NULL);
237
238 interfaces++;
239 }
240 }
241
242 kstat_close(kc);
243 #endif
244 #ifdef LINUX
245 f=fopen("/proc/net/dev", "r");
246 if(f==NULL){
247 sg_set_error_with_errno(SG_ERROR_OPEN, "/proc/net/dev");
248 return NULL;
249 }
250 /* read the 2 lines.. Its the title, so we dont care :) */
251 fgets(line, sizeof(line), f);
252 fgets(line, sizeof(line), f);
253
254
255 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){
256 sg_set_error(SG_ERROR_PARSE, NULL);
257 return NULL;
258 }
259
260 interfaces=0;
261
262 while((fgets(line, sizeof(line), f)) != NULL){
263 if((regexec(&regex, line, 9, line_match, 0))!=0){
264 continue;
265 }
266
267 if (VECTOR_RESIZE(network_stats, interfaces + 1) < 0) {
268 return NULL;
269 }
270 network_stat_ptr=network_stats+interfaces;
271
272 if(network_stat_ptr->interface_name!=NULL){
273 free(network_stat_ptr->interface_name);
274 }
275
276 network_stat_ptr->interface_name=sg_get_string_match(line, &line_match[1]);
277 network_stat_ptr->rx=sg_get_ll_match(line, &line_match[2]);
278 network_stat_ptr->tx=sg_get_ll_match(line, &line_match[5]);
279 network_stat_ptr->ipackets=sg_get_ll_match(line, &line_match[3]);
280 network_stat_ptr->opackets=sg_get_ll_match(line, &line_match[6]);
281 network_stat_ptr->ierrors=sg_get_ll_match(line, &line_match[4]);
282 network_stat_ptr->oerrors=sg_get_ll_match(line, &line_match[7]);
283 network_stat_ptr->collisions=sg_get_ll_match(line, &line_match[8]);
284 network_stat_ptr->systime=time(NULL);
285
286 interfaces++;
287 }
288 fclose(f);
289 regfree(&regex);
290
291 #endif
292
293 #ifdef CYGWIN
294 sg_set_error(SG_ERROR_UNSUPPORTED, "Cygwin");
295 return NULL;
296 #endif
297
298 *entries=interfaces;
299
300 return network_stats;
301 }
302
303 static long long transfer_diff(long long new, long long old){
304 #if defined(SOL7) || defined(LINUX) || defined(FREEBSD) || defined(DFBSD) || defined(OPENBSD)
305 /* 32-bit quantities, so we must explicitly deal with wraparound. */
306 #define MAXVAL 0x100000000LL
307 if (new >= old) {
308 return new - old;
309 } else {
310 return MAXVAL + new - old;
311 }
312 #else
313 /* 64-bit quantities, so plain subtraction works. */
314 return new - old;
315 #endif
316 }
317
318 sg_network_io_stats *sg_get_network_io_stats_diff(int *entries) {
319 VECTOR_DECLARE_STATIC(diff, sg_network_io_stats, 1,
320 network_stat_init, network_stat_destroy);
321 sg_network_io_stats *src = NULL, *dest;
322 int i, j, diff_count, new_count;
323
324 if (network_stats == NULL) {
325 /* No previous stats, so we can't calculate a difference. */
326 return sg_get_network_io_stats(entries);
327 }
328
329 /* Resize the results array to match the previous stats. */
330 diff_count = VECTOR_SIZE(network_stats);
331 if (VECTOR_RESIZE(diff, diff_count) < 0) {
332 return NULL;
333 }
334
335 /* Copy the previous stats into the result. */
336 for (i = 0; i < diff_count; i++) {
337 src = &network_stats[i];
338 dest = &diff[i];
339
340 if (sg_update_string(&dest->interface_name,
341 src->interface_name) < 0) {
342 return NULL;
343 }
344 dest->rx = src->rx;
345 dest->tx = src->tx;
346 dest->ipackets = src->ipackets;
347 dest->opackets = src->opackets;
348 dest->ierrors = src->ierrors;
349 dest->oerrors = src->oerrors;
350 dest->collisions = src->collisions;
351 dest->systime = src->systime;
352 }
353
354 /* Get a new set of stats. */
355 if (sg_get_network_io_stats(&new_count) == NULL) {
356 return NULL;
357 }
358
359 /* For each previous stat... */
360 for (i = 0; i < diff_count; i++) {
361 dest = &diff[i];
362
363 /* ... find the corresponding new stat ... */
364 for (j = 0; j < new_count; j++) {
365 /* Try the new stat in the same position first,
366 since that's most likely to be it. */
367 src = &network_stats[(i + j) % new_count];
368 if (strcmp(src->interface_name, dest->interface_name) == 0) {
369 break;
370 }
371 }
372 if (j == new_count) {
373 /* No match found. */
374 continue;
375 }
376
377 /* ... and subtract the previous stat from it to get the
378 difference. */
379 dest->rx = transfer_diff(src->rx, dest->rx);
380 dest->tx = transfer_diff(src->tx, dest->tx);
381 dest->ipackets = transfer_diff(src->ipackets, dest->ipackets);
382 dest->opackets = transfer_diff(src->opackets, dest->opackets);
383 dest->ierrors = transfer_diff(src->ierrors, dest->ierrors);
384 dest->oerrors = transfer_diff(src->oerrors, dest->oerrors);
385 dest->collisions = transfer_diff(src->collisions, dest->collisions);
386 dest->systime = src->systime - dest->systime;
387 }
388
389 *entries = diff_count;
390 return diff;
391 }
392
393 int sg_network_io_compare_name(const void *va, const void *vb) {
394 const sg_network_io_stats *a = (const sg_network_io_stats *)va;
395 const sg_network_io_stats *b = (const sg_network_io_stats *)vb;
396
397 return strcmp(a->interface_name, b->interface_name);
398 }
399
400 /* NETWORK INTERFACE STATS */
401
402 static void network_iface_stat_init(sg_network_iface_stats *s) {
403 s->interface_name = NULL;
404 s->speed = 0;
405 s->dup = SG_IFACE_DUPLEX_UNKNOWN;
406 }
407
408 static void network_iface_stat_destroy(sg_network_iface_stats *s) {
409 free(s->interface_name);
410 }
411
412 sg_network_iface_stats *sg_get_network_iface_stats(int *entries){
413 VECTOR_DECLARE_STATIC(network_iface_stats, sg_network_iface_stats, 5,
414 network_iface_stat_init, network_iface_stat_destroy);
415 sg_network_iface_stats *network_iface_stat_ptr;
416 int ifaces = 0;
417
418 #ifdef SOLARIS
419 kstat_ctl_t *kc;
420 kstat_t *ksp;
421 kstat_named_t *knp;
422 int sock;
423 #endif
424 #ifdef ALLBSD
425 struct ifaddrs *net, *net_ptr;
426 struct ifmediareq ifmed;
427 struct ifreq ifr;
428 int sock;
429 int x;
430 #endif
431 #ifdef LINUX
432 FILE *f;
433 /* Horrible big enough, but it should be easily big enough */
434 char line[8096];
435 int sock;
436 #endif
437
438 #ifdef ALLBSD
439 if(getifaddrs(&net) != 0){
440 sg_set_error_with_errno(SG_ERROR_GETIFADDRS, NULL);
441 return NULL;
442 }
443
444 if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) == 0) return NULL;
445
446 for(net_ptr=net; net_ptr!=NULL; net_ptr=net_ptr->ifa_next){
447 if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
448
449 if (VECTOR_RESIZE(network_iface_stats, ifaces + 1) < 0) {
450 return NULL;
451 }
452 network_iface_stat_ptr = network_iface_stats + ifaces;
453
454 memset(&ifr, 0, sizeof(ifr));
455 strncpy(ifr.ifr_name, net_ptr->ifa_name, sizeof(ifr.ifr_name));
456
457 if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0){
458 continue;
459 }
460 if((ifr.ifr_flags & IFF_UP) != 0){
461 network_iface_stat_ptr->up = 1;
462 }else{
463 network_iface_stat_ptr->up = 0;
464 }
465
466 if (sg_update_string(&network_iface_stat_ptr->interface_name,
467 net_ptr->ifa_name) < 0) {
468 return NULL;
469 }
470
471 network_iface_stat_ptr->speed = 0;
472 network_iface_stat_ptr->dup = SG_IFACE_DUPLEX_UNKNOWN;
473 ifaces++;
474
475 memset(&ifmed, 0, sizeof(struct ifmediareq));
476 sg_strlcpy(ifmed.ifm_name, net_ptr->ifa_name, sizeof(ifmed.ifm_name));
477 if(ioctl(sock, SIOCGIFMEDIA, (caddr_t)&ifmed) == -1){
478 /* Not all interfaces support the media ioctls. */
479 continue;
480 }
481
482 /* We may need to change this if we start doing wireless devices too */
483 if( (ifmed.ifm_active | IFM_ETHER) != ifmed.ifm_active ){
484 /* Not a ETHER device */
485 continue;
486 }
487
488 /* Only intrested in the first 4 bits) - Assuming only ETHER devices */
489 x = ifmed.ifm_active & 0x0f;
490 switch(x){
491 /* 10 Mbit connections. Speedy :) */
492 case(IFM_10_T):
493 case(IFM_10_2):
494 case(IFM_10_5):
495 case(IFM_10_STP):
496 case(IFM_10_FL):
497 network_iface_stat_ptr->speed = 10;
498 break;
499 /* 100 Mbit conneections */
500 case(IFM_100_TX):
501 case(IFM_100_FX):
502 case(IFM_100_T4):
503 case(IFM_100_VG):
504 case(IFM_100_T2):
505 network_iface_stat_ptr->speed = 100;
506 break;
507 /* 1000 Mbit connections */
508 case(IFM_1000_SX):
509 case(IFM_1000_LX):
510 case(IFM_1000_CX):
511 #if defined(IFM_1000_TX) && !defined(OPENBSD)
512 case(IFM_1000_TX): /* FreeBSD 4 and others (but NOT OpenBSD)? */
513 #endif
514 #ifdef IFM_1000_FX
515 case(IFM_1000_FX): /* FreeBSD 4 */
516 #endif
517 #ifdef IFM_1000_T
518 case(IFM_1000_T): /* FreeBSD 5 */
519 #endif
520 network_iface_stat_ptr->speed = 1000;
521 break;
522 /* We don't know what it is */
523 default:
524 network_iface_stat_ptr->speed = 0;
525 break;
526 }
527
528 if( (ifmed.ifm_active | IFM_FDX) == ifmed.ifm_active ){
529 network_iface_stat_ptr->dup = SG_IFACE_DUPLEX_FULL;
530 }else if( (ifmed.ifm_active | IFM_HDX) == ifmed.ifm_active ){
531 network_iface_stat_ptr->dup = SG_IFACE_DUPLEX_HALF;
532 }else{
533 network_iface_stat_ptr->dup = SG_IFACE_DUPLEX_UNKNOWN;
534 }
535
536 }
537 freeifaddrs(net);
538 close(sock);
539 #endif
540
541 #ifdef SOLARIS
542 if ((kc = kstat_open()) == NULL) {
543 sg_set_error(SG_ERROR_KSTAT_OPEN, NULL);
544 return NULL;
545 }
546
547 if ((sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP)) < 0) {
548 sg_set_error_with_errno(SG_ERROR_SOCKET, NULL);
549 return NULL;
550 }
551
552 for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
553 if (!strcmp(ksp->ks_class, "net")) {
554 struct ifreq ifr;
555
556 kstat_read(kc, ksp, NULL);
557
558 strncpy(ifr.ifr_name, ksp->ks_name, sizeof ifr.ifr_name);
559 if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0) {
560 /* Not a network interface. */
561 continue;
562 }
563
564 if (VECTOR_RESIZE(network_iface_stats, ifaces + 1) < 0) {
565 return NULL;
566 }
567 network_iface_stat_ptr = network_iface_stats + ifaces;
568 ifaces++;
569
570 if (sg_update_string(&network_iface_stat_ptr->interface_name,
571 ksp->ks_name) < 0) {
572 return NULL;
573 }
574
575 if ((ifr.ifr_flags & IFF_UP) != 0) {
576 network_iface_stat_ptr->up = 1;
577 } else {
578 network_iface_stat_ptr->up = 1;
579 }
580
581 if ((knp = kstat_data_lookup(ksp, "ifspeed")) != NULL) {
582 network_iface_stat_ptr->speed = knp->value.ui64 / (1000 * 1000);
583 } else {
584 network_iface_stat_ptr->speed = 0;
585 }
586
587 network_iface_stat_ptr->dup = SG_IFACE_DUPLEX_UNKNOWN;
588 if ((knp = kstat_data_lookup(ksp, "link_duplex")) != NULL) {
589 switch (knp->value.ui32) {
590 case 1:
591 network_iface_stat_ptr->dup = SG_IFACE_DUPLEX_HALF;
592 break;
593 case 2:
594 network_iface_stat_ptr->dup = SG_IFACE_DUPLEX_FULL;
595 break;
596 }
597 }
598 }
599 }
600
601 close(sock);
602 kstat_close(kc);
603 #endif
604 #ifdef LINUX
605 f = fopen("/proc/net/dev", "r");
606 if(f == NULL){
607 sg_set_error_with_errno(SG_ERROR_OPEN, "/proc/net/dev");
608 return NULL;
609 }
610
611 /* Setup stuff so we can do the ioctl to get the info */
612 if((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0){
613 sg_set_error_with_errno(SG_ERROR_SOCKET, NULL);
614 return NULL;
615 }
616
617 /* Ignore first 2 lines.. Just headings */
618 if((fgets(line, sizeof(line), f)) == NULL) {
619 sg_set_error(SG_ERROR_PARSE, NULL);
620 return NULL;
621 }
622 if((fgets(line, sizeof(line), f)) == NULL) {
623 sg_set_error(SG_ERROR_PARSE, NULL);
624 return NULL;
625 }
626
627 while((fgets(line, sizeof(line), f)) != NULL){
628 char *name, *ptr;
629 struct ifreq ifr;
630 struct ethtool_cmd ethcmd;
631 int err;
632
633 /* Get the interface name */
634 ptr = strchr(line, ':');
635 if (ptr == NULL) continue;
636 *ptr='\0';
637 name = line;
638 while(isspace(*(name))){
639 name++;
640 }
641
642 memset(&ifr, 0, sizeof ifr);
643 strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
644
645 if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0) {
646 continue;
647 }
648
649 /* We have a good interface to add */
650 if (VECTOR_RESIZE(network_iface_stats, ifaces + 1) < 0) {
651 return NULL;
652 }
653 network_iface_stat_ptr = network_iface_stats + ifaces;
654
655 if (sg_update_string(&network_iface_stat_ptr->interface_name,
656 name) < 0) {
657 return NULL;
658 }
659 if ((ifr.ifr_flags & IFF_UP) != 0) {
660 network_iface_stat_ptr->up = 1;
661 } else {
662 network_iface_stat_ptr->up = 0;
663 }
664
665 memset(&ethcmd, 0, sizeof ethcmd);
666 ethcmd.cmd = ETHTOOL_GSET;
667 ifr.ifr_data = (caddr_t) &ethcmd;
668
669 err = ioctl(sock, SIOCETHTOOL, &ifr);
670 if (err == 0) {
671 network_iface_stat_ptr->speed = ethcmd.speed;
672
673 switch (ethcmd.duplex) {
674 case 0x00:
675 network_iface_stat_ptr->dup = SG_IFACE_DUPLEX_FULL;
676 break;
677 case 0x01:
678 network_iface_stat_ptr->dup = SG_IFACE_DUPLEX_HALF;
679 break;
680 default:
681 network_iface_stat_ptr->dup = SG_IFACE_DUPLEX_UNKNOWN;
682 }
683 } else {
684 /* Not all interfaces support the ethtool ioctl. */
685 network_iface_stat_ptr->speed = 0;
686 network_iface_stat_ptr->dup = SG_IFACE_DUPLEX_UNKNOWN;
687 }
688
689 ifaces++;
690 }
691 close(sock);
692 fclose(f);
693 #endif
694 *entries = ifaces;
695 return network_iface_stats;
696 }
697
698 int sg_network_iface_compare_name(const void *va, const void *vb) {
699 const sg_network_iface_stats *a = (const sg_network_iface_stats *)va;
700 const sg_network_iface_stats *b = (const sg_network_iface_stats *)vb;
701
702 return strcmp(a->interface_name, b->interface_name);
703 }
704