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authorandersen <andersen@69ca8d6d-28ef-0310-b511-8ec308f3f277>2001-04-19 16:55:27 +0000
committerandersen <andersen@69ca8d6d-28ef-0310-b511-8ec308f3f277>2001-04-19 16:55:27 +0000
commit1d961a851d66587c93a183d763e1067ca43ef56c (patch)
tree8262e023a17fdaf0dc5982d7d49d801c6596a2d4 /libbb
parent5fb749a0320175f2cf7d1558908a448dea640f51 (diff)
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This has two patches. First it moves interface.c to libbb (it is
support code after all). It also contains a patch from Larry Doolittle that removes two instances of "strlen([^)]*) *- *1", un-shadows two variables, relaxes requirement for a sprintf(3) that returns number of bytes written, and eliminates a duplicate subroutine. git-svn-id: svn://busybox.net/trunk/busybox@2379 69ca8d6d-28ef-0310-b511-8ec308f3f277
Diffstat (limited to 'libbb')
-rw-r--r--libbb/interface.c2129
1 files changed, 2129 insertions, 0 deletions
diff --git a/libbb/interface.c b/libbb/interface.c
new file mode 100644
index 000000000..b453b6f67
--- /dev/null
+++ b/libbb/interface.c
@@ -0,0 +1,2129 @@
1/*
2 * ifconfig This file contains an implementation of the command
3 * that either displays or sets the characteristics of
4 * one or more of the system's networking interfaces.
5 *
6 * Version: $Id: interface.c,v 1.1 2001/04/19 16:55:27 andersen Exp $
7 *
8 * Author: Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
9 * and others. Copyright 1993 MicroWalt Corporation
10 *
11 * This program is free software; you can redistribute it
12 * and/or modify it under the terms of the GNU General
13 * Public License as published by the Free Software
14 * Foundation; either version 2 of the License, or (at
15 * your option) any later version.
16 *
17 * Patched to support 'add' and 'del' keywords for INET(4) addresses
18 * by Mrs. Brisby <mrs.brisby@nimh.org>
19 *
20 * {1.34} - 19980630 - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
21 * - gettext instead of catgets for i18n
22 * 10/1998 - Andi Kleen. Use interface list primitives.
23 * 20001008 - Bernd Eckenfels, Patch from RH for setting mtu
24 * (default AF was wrong)
25 * stolen from net-tools-1.59 and stripped down for busybox by
26 * Erik Andersen <andersee@debian.org>
27 */
28
29/*
30 * Heavily modified by Manuel Novoa III Mar 12, 2001
31 *
32 * Pruned unused code using KEEP_UNUSED define.
33 * Added print_bytes_scaled function to reduce code size.
34 * Added some (potentially) missing defines.
35 * Improved display support for -a and for a named interface.
36 */
37
38/* #define KEEP_UNUSED */
39
40#include "libbb.h"
41
42/*
43 *
44 * Protocol Families.
45 *
46 */
47#define HAVE_AFINET 1
48#undef HAVE_AFINET6
49#undef HAVE_AFIPX
50#undef HAVE_AFATALK
51#undef HAVE_AFNETROM
52#undef HAVE_AFX25
53#undef HAVE_AFECONET
54
55/*
56 *
57 * Device Hardware types.
58 *
59 */
60#define HAVE_HWETHER 1
61#define HAVE_HWPPP 1
62#undef HAVE_HWSLIP
63
64
65#include <features.h>
66#include <sys/types.h>
67#include <sys/socket.h>
68#include <sys/ioctl.h>
69#include <netinet/in.h>
70#include <net/if.h>
71#include <net/if_arp.h>
72#include <stdio.h>
73#include <errno.h>
74#include <fcntl.h>
75#include <ctype.h>
76#include <stdlib.h>
77#include <string.h>
78#include <unistd.h>
79#include <netdb.h>
80#include <netinet/in.h>
81#include <arpa/inet.h>
82#include <arpa/nameser.h>
83
84#define _(x) x
85#define _PATH_PROCNET_DEV "/proc/net/dev"
86#define new(p) ((p) = xcalloc(1,sizeof(*(p))))
87#define KRELEASE(maj,min,patch) ((maj) * 10000 + (min)*1000 + (patch))
88
89static int procnetdev_vsn = 1;
90
91
92/* Ugh. But libc5 doesn't provide POSIX types. */
93#include <asm/types.h>
94
95
96#ifdef HAVE_HWSLIP
97#include <linux/if_slip.h>
98#endif
99
100#if HAVE_AFINET6
101
102#ifndef _LINUX_IN6_H
103/*
104 * This is in linux/include/net/ipv6.h.
105 */
106
107struct in6_ifreq {
108 struct in6_addr ifr6_addr;
109 __u32 ifr6_prefixlen;
110 unsigned int ifr6_ifindex;
111};
112
113#endif
114
115#endif /* HAVE_AFINET6 */
116
117#if HAVE_AFIPX
118#if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1)
119#include <netipx/ipx.h>
120#else
121#include "ipx.h"
122#endif
123#endif
124#if 0
125#include "net-support.h"
126#include "pathnames.h"
127#include "version.h"
128#include "../intl.h"
129#include "interface.h"
130#include "sockets.h"
131#include "util.h"
132#endif
133
134/* Defines for glibc2.0 users. */
135#ifndef SIOCSIFTXQLEN
136#define SIOCSIFTXQLEN 0x8943
137#define SIOCGIFTXQLEN 0x8942
138#endif
139
140/* ifr_qlen is ifru_ivalue, but it isn't present in 2.0 kernel headers */
141#ifndef ifr_qlen
142#define ifr_qlen ifr_ifru.ifru_mtu
143#endif
144
145#ifndef HAVE_TXQUEUELEN
146#define HAVE_TXQUEUELEN 1
147#endif
148
149#ifndef IFF_DYNAMIC
150#define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses */
151#endif
152
153/* This structure defines protocol families and their handlers. */
154struct aftype {
155 const char *name;
156 const char *title;
157 int af;
158 int alen;
159 char *(*print) (unsigned char *);
160 char *(*sprint) (struct sockaddr *, int numeric);
161 int (*input) (int type, char *bufp, struct sockaddr *);
162 void (*herror) (char *text);
163 int (*rprint) (int options);
164 int (*rinput) (int typ, int ext, char **argv);
165
166 /* may modify src */
167 int (*getmask) (char *src, struct sockaddr * mask, char *name);
168
169 int fd;
170 char *flag_file;
171};
172
173static struct aftype *aftypes[];
174
175#ifdef KEEP_UNUSED
176
177static int flag_unx;
178static int flag_ipx;
179static int flag_ax25;
180static int flag_ddp;
181static int flag_netrom;
182static int flag_inet;
183static int flag_inet6;
184static int flag_econet;
185static int flag_x25 = 0;
186static int flag_ash;
187
188
189static struct aftrans_t {
190 char *alias;
191 char *name;
192 int *flag;
193} aftrans[] = {
194
195 {
196 "ax25", "ax25", &flag_ax25
197 },
198 {
199 "ip", "inet", &flag_inet
200 },
201 {
202 "ip6", "inet6", &flag_inet6
203 },
204 {
205 "ipx", "ipx", &flag_ipx
206 },
207 {
208 "appletalk", "ddp", &flag_ddp
209 },
210 {
211 "netrom", "netrom", &flag_netrom
212 },
213 {
214 "inet", "inet", &flag_inet
215 },
216 {
217 "inet6", "inet6", &flag_inet6
218 },
219 {
220 "ddp", "ddp", &flag_ddp
221 },
222 {
223 "unix", "unix", &flag_unx
224 },
225 {
226 "tcpip", "inet", &flag_inet
227 },
228 {
229 "econet", "ec", &flag_econet
230 },
231 {
232 "x25", "x25", &flag_x25
233 },
234 {
235 "ash", "ash", &flag_ash
236 },
237 {
238 0, 0, 0
239 }
240};
241
242static char afname[256] = "";
243#endif /* KEEP_UNUSED */
244
245#if HAVE_AFUNIX
246
247/* Display a UNIX domain address. */
248static char *UNIX_print(unsigned char *ptr)
249{
250 return (ptr);
251}
252
253
254/* Display a UNIX domain address. */
255static char *UNIX_sprint(struct sockaddr *sap, int numeric)
256{
257 static char buf[64];
258
259 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
260 return safe_strncpy(buf, _("[NONE SET]"), sizeof(buf));
261 return (UNIX_print(sap->sa_data));
262}
263
264
265static struct aftype unix_aftype =
266{
267 "unix", "UNIX Domain", AF_UNIX, 0,
268 UNIX_print, UNIX_sprint, NULL, NULL,
269 NULL, NULL, NULL,
270 -1,
271 "/proc/net/unix"
272};
273#endif /* HAVE_AFUNIX */
274
275#if HAVE_AFINET
276
277#if 0
278extern int h_errno; /* some netdb.h versions don't export this */
279#endif
280
281/* cache */
282struct addr {
283 struct sockaddr_in addr;
284 char *name;
285 int host;
286 struct addr *next;
287};
288
289static struct addr *INET_nn = NULL; /* addr-to-name cache */
290
291#ifdef KEEP_UNUSED
292static int INET_resolve(char *name, struct sockaddr_in *sin, int hostfirst)
293{
294 struct hostent *hp;
295 struct netent *np;
296
297 /* Grmpf. -FvK */
298 sin->sin_family = AF_INET;
299 sin->sin_port = 0;
300
301 /* Default is special, meaning 0.0.0.0. */
302 if (!strcmp(name, "default")) {
303 sin->sin_addr.s_addr = INADDR_ANY;
304 return (1);
305 }
306 /* Look to see if it's a dotted quad. */
307 if (inet_aton(name, &sin->sin_addr)) {
308 return 0;
309 }
310 /* If we expect this to be a hostname, try hostname database first */
311#ifdef DEBUG
312 if (hostfirst) fprintf (stderr, "gethostbyname (%s)\n", name);
313#endif
314 if (hostfirst &&
315 (hp = gethostbyname(name)) != (struct hostent *) NULL) {
316 memcpy((char *) &sin->sin_addr, (char *) hp->h_addr_list[0],
317 sizeof(struct in_addr));
318 return 0;
319 }
320 /* Try the NETWORKS database to see if this is a known network. */
321#ifdef DEBUG
322 fprintf (stderr, "getnetbyname (%s)\n", name);
323#endif
324 if ((np = getnetbyname(name)) != (struct netent *) NULL) {
325 sin->sin_addr.s_addr = htonl(np->n_net);
326 return 1;
327 }
328 if (hostfirst) {
329 /* Don't try again */
330 errno = h_errno;
331 return -1;
332 }
333#ifdef DEBUG
334 res_init();
335 _res.options |= RES_DEBUG;
336#endif
337
338#ifdef DEBUG
339 fprintf (stderr, "gethostbyname (%s)\n", name);
340#endif
341 if ((hp = gethostbyname(name)) == (struct hostent *) NULL) {
342 errno = h_errno;
343 return -1;
344 }
345 memcpy((char *) &sin->sin_addr, (char *) hp->h_addr_list[0],
346 sizeof(struct in_addr));
347
348 return 0;
349}
350#endif /* KEEP_UNUSED */
351
352/* numeric: & 0x8000: default instead of *,
353 * & 0x4000: host instead of net,
354 * & 0x0fff: don't resolve
355 */
356static int INET_rresolve(char *name, size_t len, struct sockaddr_in *s_in,
357 int numeric, unsigned int netmask)
358{
359 struct hostent *ent;
360 struct netent *np;
361 struct addr *pn;
362 unsigned long ad, host_ad;
363 int host = 0;
364
365 /* Grmpf. -FvK */
366 if (s_in->sin_family != AF_INET) {
367#ifdef DEBUG
368 fprintf(stderr, _("rresolve: unsupport address family %d !\n"), s_in->sin_family);
369#endif
370 errno = EAFNOSUPPORT;
371 return (-1);
372 }
373 ad = (unsigned long) s_in->sin_addr.s_addr;
374#ifdef DEBUG
375 fprintf (stderr, "rresolve: %08lx, mask %08x, num %08x \n", ad, netmask, numeric);
376#endif
377 if (ad == INADDR_ANY) {
378 if ((numeric & 0x0FFF) == 0) {
379 if (numeric & 0x8000)
380 safe_strncpy(name, "default", len);
381 else
382 safe_strncpy(name, "*", len);
383 return (0);
384 }
385 }
386 if (numeric & 0x0FFF) {
387 safe_strncpy(name, inet_ntoa(s_in->sin_addr), len);
388 return (0);
389 }
390
391 if ((ad & (~netmask)) != 0 || (numeric & 0x4000))
392 host = 1;
393#if 0
394 INET_nn = NULL;
395#endif
396 pn = INET_nn;
397 while (pn != NULL) {
398 if (pn->addr.sin_addr.s_addr == ad && pn->host == host) {
399 safe_strncpy(name, pn->name, len);
400#ifdef DEBUG
401 fprintf (stderr, "rresolve: found %s %08lx in cache\n", (host? "host": "net"), ad);
402#endif
403 return (0);
404 }
405 pn = pn->next;
406 }
407
408 host_ad = ntohl(ad);
409 np = NULL;
410 ent = NULL;
411 if (host) {
412#ifdef DEBUG
413 fprintf (stderr, "gethostbyaddr (%08lx)\n", ad);
414#endif
415 ent = gethostbyaddr((char *) &ad, 4, AF_INET);
416 if (ent != NULL)
417 safe_strncpy(name, ent->h_name, len);
418 } else {
419#ifdef DEBUG
420 fprintf (stderr, "getnetbyaddr (%08lx)\n", host_ad);
421#endif
422 np = getnetbyaddr(host_ad, AF_INET);
423 if (np != NULL)
424 safe_strncpy(name, np->n_name, len);
425 }
426 if ((ent == NULL) && (np == NULL))
427 safe_strncpy(name, inet_ntoa(s_in->sin_addr), len);
428 pn = (struct addr *) xmalloc(sizeof(struct addr));
429 pn->addr = *s_in;
430 pn->next = INET_nn;
431 pn->host = host;
432 pn->name = (char *) xmalloc(strlen(name) + 1);
433 strcpy(pn->name, name);
434 INET_nn = pn;
435
436 return (0);
437}
438
439#ifdef KEEP_UNUSED
440static void INET_reserror(char *text)
441{
442 herror(text);
443}
444
445/* Display an Internet socket address. */
446static char *INET_print(unsigned char *ptr)
447{
448 return (inet_ntoa((*(struct in_addr *) ptr)));
449}
450#endif /* KEEP_UNUSED */
451
452/* Display an Internet socket address. */
453static char *INET_sprint(struct sockaddr *sap, int numeric)
454{
455 static char buff[128];
456
457 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
458 return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff));
459
460 if (INET_rresolve(buff, sizeof(buff), (struct sockaddr_in *) sap,
461 numeric, 0xffffff00) != 0)
462 return (NULL);
463
464 return (buff);
465}
466
467#ifdef KEEP_UNUSED
468static char *INET_sprintmask(struct sockaddr *sap, int numeric,
469 unsigned int netmask)
470{
471 static char buff[128];
472
473 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
474 return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff));
475 if (INET_rresolve(buff, sizeof(buff), (struct sockaddr_in *) sap,
476 numeric, netmask) != 0)
477 return (NULL);
478 return (buff);
479}
480
481static int INET_getsock(char *bufp, struct sockaddr *sap)
482{
483 char *sp = bufp, *bp;
484 unsigned int i;
485 unsigned val;
486 struct sockaddr_in *sin;
487
488 sin = (struct sockaddr_in *) sap;
489 sin->sin_family = AF_INET;
490 sin->sin_port = 0;
491
492 val = 0;
493 bp = (char *) &val;
494 for (i = 0; i < sizeof(sin->sin_addr.s_addr); i++) {
495 *sp = toupper(*sp);
496
497 if ((*sp >= 'A') && (*sp <= 'F'))
498 bp[i] |= (int) (*sp - 'A') + 10;
499 else if ((*sp >= '0') && (*sp <= '9'))
500 bp[i] |= (int) (*sp - '0');
501 else
502 return (-1);
503
504 bp[i] <<= 4;
505 sp++;
506 *sp = toupper(*sp);
507
508 if ((*sp >= 'A') && (*sp <= 'F'))
509 bp[i] |= (int) (*sp - 'A') + 10;
510 else if ((*sp >= '0') && (*sp <= '9'))
511 bp[i] |= (int) (*sp - '0');
512 else
513 return (-1);
514
515 sp++;
516 }
517 sin->sin_addr.s_addr = htonl(val);
518
519 return (sp - bufp);
520}
521
522static int INET_input(int type, char *bufp, struct sockaddr *sap)
523{
524 switch (type) {
525 case 1:
526 return (INET_getsock(bufp, sap));
527 case 256:
528 return (INET_resolve(bufp, (struct sockaddr_in *) sap, 1));
529 default:
530 return (INET_resolve(bufp, (struct sockaddr_in *) sap, 0));
531 }
532}
533
534static int INET_getnetmask(char *adr, struct sockaddr *m, char *name)
535{
536 struct sockaddr_in *mask = (struct sockaddr_in *) m;
537 char *slash, *end;
538 int prefix;
539
540 if ((slash = strchr(adr, '/')) == NULL)
541 return 0;
542
543 *slash++ = '\0';
544 prefix = strtoul(slash, &end, 0);
545 if (*end != '\0')
546 return -1;
547
548 if (name) {
549 sprintf(name, "/%d", prefix);
550 }
551 mask->sin_family = AF_INET;
552 mask->sin_addr.s_addr = htonl(~(0xffffffffU >> prefix));
553 return 1;
554}
555#endif /* KEEP_UNUSED */
556
557static struct aftype inet_aftype =
558{
559 "inet", "DARPA Internet", AF_INET, sizeof(unsigned long),
560 NULL /* UNUSED INET_print */, INET_sprint,
561 NULL /* UNUSED INET_input */, NULL /* UNUSED INET_reserror */,
562 NULL /*INET_rprint */ , NULL /*INET_rinput */ ,
563 NULL /* UNUSED INET_getnetmask */,
564 -1,
565 NULL
566};
567
568#endif /* HAVE_AFINET */
569
570/* Display an UNSPEC address. */
571static char *UNSPEC_print(unsigned char *ptr)
572{
573 static char buff[sizeof(struct sockaddr)*3+1];
574 char *pos;
575 unsigned int i;
576
577 pos = buff;
578 for (i = 0; i < sizeof(struct sockaddr); i++) {
579 /* careful -- not every libc's sprintf returns # bytes written */
580 sprintf(pos, "%02X-", (*ptr++ & 0377));
581 pos += 3;
582 }
583 /* Erase trailing "-". Works as long as sizeof(struct sockaddr) != 0 */
584 *--pos = '\0';
585 return (buff);
586}
587
588/* Display an UNSPEC socket address. */
589static char *UNSPEC_sprint(struct sockaddr *sap, int numeric)
590{
591 static char buf[64];
592
593 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
594 return safe_strncpy(buf, _("[NONE SET]"), sizeof(buf));
595 return (UNSPEC_print(sap->sa_data));
596}
597
598static struct aftype unspec_aftype =
599{
600 "unspec", "UNSPEC", AF_UNSPEC, 0,
601 UNSPEC_print, UNSPEC_sprint, NULL, NULL,
602 NULL,
603};
604
605static struct aftype *aftypes[] =
606{
607#if HAVE_AFUNIX
608 &unix_aftype,
609#endif
610#if HAVE_AFINET
611 &inet_aftype,
612#endif
613#if HAVE_AFINET6
614 &inet6_aftype,
615#endif
616#if HAVE_AFAX25
617 &ax25_aftype,
618#endif
619#if HAVE_AFNETROM
620 &netrom_aftype,
621#endif
622#if HAVE_AFROSE
623 &rose_aftype,
624#endif
625#if HAVE_AFIPX
626 &ipx_aftype,
627#endif
628#if HAVE_AFATALK
629 &ddp_aftype,
630#endif
631#if HAVE_AFECONET
632 &ec_aftype,
633#endif
634#if HAVE_AFASH
635 &ash_aftype,
636#endif
637#if HAVE_AFX25
638 &x25_aftype,
639#endif
640 &unspec_aftype,
641 NULL
642};
643
644#ifdef KEEP_UNUSED
645static short sVafinit = 0;
646
647static void afinit()
648{
649 unspec_aftype.title = _("UNSPEC");
650#if HAVE_AFUNIX
651 unix_aftype.title = _("UNIX Domain");
652#endif
653#if HAVE_AFINET
654 inet_aftype.title = _("DARPA Internet");
655#endif
656#if HAVE_AFINET6
657 inet6_aftype.title = _("IPv6");
658#endif
659#if HAVE_AFAX25
660 ax25_aftype.title = _("AMPR AX.25");
661#endif
662#if HAVE_AFNETROM
663 netrom_aftype.title = _("AMPR NET/ROM");
664#endif
665#if HAVE_AFIPX
666 ipx_aftype.title = _("Novell IPX");
667#endif
668#if HAVE_AFATALK
669 ddp_aftype.title = _("Appletalk DDP");
670#endif
671#if HAVE_AFECONET
672 ec_aftype.title = _("Econet");
673#endif
674#if HAVE_AFX25
675 x25_aftype.title = _("CCITT X.25");
676#endif
677#if HAVE_AFROSE
678 rose_aftype.title = _("AMPR ROSE");
679#endif
680#if HAVE_AFASH
681 ash_aftype.title = _("Ash");
682#endif
683 sVafinit = 1;
684}
685
686static int aftrans_opt(const char *arg)
687{
688 struct aftrans_t *paft;
689 char *tmp1, *tmp2;
690 char buf[256];
691
692 safe_strncpy(buf, arg, sizeof(buf));
693
694 tmp1 = buf;
695
696 while (tmp1) {
697
698 tmp2 = index(tmp1, ',');
699
700 if (tmp2)
701 *(tmp2++) = '\0';
702
703 paft = aftrans;
704 for (paft = aftrans; paft->alias; paft++) {
705 if (strcmp(tmp1, paft->alias))
706 continue;
707 if (strlen(paft->name) + strlen(afname) + 1 >= sizeof(afname)) {
708 fprintf(stderr, _("Too much address family arguments.\n"));
709 return (0);
710 }
711 if (paft->flag)
712 (*paft->flag)++;
713 if (afname[0])
714 strcat(afname, ",");
715 strcat(afname, paft->name);
716 break;
717 }
718 if (!paft->alias) {
719 fprintf(stderr, _("Unknown address family `%s'.\n"), tmp1);
720 return (1);
721 }
722 tmp1 = tmp2;
723 }
724
725 return (0);
726}
727
728/* set the default AF list from the program name or a constant value */
729static void aftrans_def(char *tool, char *argv0, char *dflt)
730{
731 char *tmp;
732 char *buf;
733
734 strcpy(afname, dflt);
735
736 if (!(tmp = strrchr(argv0, '/')))
737 tmp = argv0; /* no slash?! */
738 else
739 tmp++;
740
741 if (!(buf = strdup(tmp)))
742 return;
743
744 if (strlen(tool) >= strlen(tmp)) {
745 free(buf);
746 return;
747 }
748 tmp = buf + (strlen(tmp) - strlen(tool));
749
750 if (strcmp(tmp, tool) != 0) {
751 free(buf);
752 return;
753 }
754 *tmp = '\0';
755 if ((tmp = strchr(buf, '_')))
756 *tmp = '\0';
757
758 afname[0] = '\0';
759 if (aftrans_opt(buf))
760 strcpy(afname, buf);
761
762 free(buf);
763}
764
765/* Check our protocol family table for this family. */
766static struct aftype *get_aftype(const char *name)
767{
768 struct aftype **afp;
769
770#ifdef KEEP_UNUSED
771 if (!sVafinit)
772 afinit();
773#endif /* KEEP_UNUSED */
774
775 afp = aftypes;
776 while (*afp != NULL) {
777 if (!strcmp((*afp)->name, name))
778 return (*afp);
779 afp++;
780 }
781 if (index(name, ','))
782 fprintf(stderr, _("Please don't supply more than one address family.\n"));
783 return (NULL);
784}
785#endif /* KEEP_UNUSED */
786
787/* Check our protocol family table for this family. */
788static struct aftype *get_afntype(int af)
789{
790 struct aftype **afp;
791
792#ifdef KEEP_UNUSED
793 if (!sVafinit)
794 afinit();
795#endif /* KEEP_UNUSED */
796
797 afp = aftypes;
798 while (*afp != NULL) {
799 if ((*afp)->af == af)
800 return (*afp);
801 afp++;
802 }
803 return (NULL);
804}
805
806/* Check our protocol family table for this family and return its socket */
807static int get_socket_for_af(int af)
808{
809 struct aftype **afp;
810
811#ifdef KEEP_UNUSED
812 if (!sVafinit)
813 afinit();
814#endif /* KEEP_UNUSED */
815
816 afp = aftypes;
817 while (*afp != NULL) {
818 if ((*afp)->af == af)
819 return (*afp)->fd;
820 afp++;
821 }
822 return -1;
823}
824
825#ifdef KEEP_UNUSED
826/* type: 0=all, 1=getroute */
827static void print_aflist(int type) {
828 int count = 0;
829 char * txt;
830 struct aftype **afp;
831
832#ifdef KEEP_UNUSED
833 if (!sVafinit)
834 afinit();
835#endif /* KEEP_UNUSED */
836
837 afp = aftypes;
838 while (*afp != NULL) {
839 if ((type == 1 && ((*afp)->rprint == NULL)) || ((*afp)->af == 0)) {
840 afp++; continue;
841 }
842 if ((count % 3) == 0) fprintf(stderr,count?"\n ":" ");
843 txt = (*afp)->name; if (!txt) txt = "..";
844 fprintf(stderr,"%s (%s) ",txt,_((*afp)->title));
845 count++;
846 afp++;
847 }
848 fprintf(stderr,"\n");
849}
850#endif /* KEEP_UNUSED */
851
852struct user_net_device_stats {
853 unsigned long long rx_packets; /* total packets received */
854 unsigned long long tx_packets; /* total packets transmitted */
855 unsigned long long rx_bytes; /* total bytes received */
856 unsigned long long tx_bytes; /* total bytes transmitted */
857 unsigned long rx_errors; /* bad packets received */
858 unsigned long tx_errors; /* packet transmit problems */
859 unsigned long rx_dropped; /* no space in linux buffers */
860 unsigned long tx_dropped; /* no space available in linux */
861 unsigned long rx_multicast; /* multicast packets received */
862 unsigned long rx_compressed;
863 unsigned long tx_compressed;
864 unsigned long collisions;
865
866 /* detailed rx_errors: */
867 unsigned long rx_length_errors;
868 unsigned long rx_over_errors; /* receiver ring buff overflow */
869 unsigned long rx_crc_errors; /* recved pkt with crc error */
870 unsigned long rx_frame_errors; /* recv'd frame alignment error */
871 unsigned long rx_fifo_errors; /* recv'r fifo overrun */
872 unsigned long rx_missed_errors; /* receiver missed packet */
873 /* detailed tx_errors */
874 unsigned long tx_aborted_errors;
875 unsigned long tx_carrier_errors;
876 unsigned long tx_fifo_errors;
877 unsigned long tx_heartbeat_errors;
878 unsigned long tx_window_errors;
879};
880
881struct interface {
882 struct interface *next, *prev;
883 char name[IFNAMSIZ]; /* interface name */
884 short type; /* if type */
885 short flags; /* various flags */
886 int metric; /* routing metric */
887 int mtu; /* MTU value */
888 int tx_queue_len; /* transmit queue length */
889 struct ifmap map; /* hardware setup */
890 struct sockaddr addr; /* IP address */
891 struct sockaddr dstaddr; /* P-P IP address */
892 struct sockaddr broadaddr; /* IP broadcast address */
893 struct sockaddr netmask; /* IP network mask */
894 struct sockaddr ipxaddr_bb; /* IPX network address */
895 struct sockaddr ipxaddr_sn; /* IPX network address */
896 struct sockaddr ipxaddr_e3; /* IPX network address */
897 struct sockaddr ipxaddr_e2; /* IPX network address */
898 struct sockaddr ddpaddr; /* Appletalk DDP address */
899 struct sockaddr ecaddr; /* Econet address */
900 int has_ip;
901 int has_ipx_bb;
902 int has_ipx_sn;
903 int has_ipx_e3;
904 int has_ipx_e2;
905 int has_ax25;
906 int has_ddp;
907 int has_econet;
908 char hwaddr[32]; /* HW address */
909 int statistics_valid;
910 struct user_net_device_stats stats; /* statistics */
911 int keepalive; /* keepalive value for SLIP */
912 int outfill; /* outfill value for SLIP */
913};
914
915
916int interface_opt_a = 0; /* show all interfaces */
917
918#ifdef KEEP_UNUSED
919static int opt_i = 0; /* show the statistics */
920static int opt_v = 0; /* debugging output flag */
921
922static int addr_family = 0; /* currently selected AF */
923#endif /* KEEP_UNUSED */
924
925static struct interface *int_list, *int_last;
926static int skfd = -1; /* generic raw socket desc. */
927
928
929static int sockets_open(int family)
930{
931 struct aftype **aft;
932 int sfd = -1;
933 static int force = -1;
934
935 if (force < 0) {
936 force = 0;
937 if (get_kernel_revision() < KRELEASE(2, 1, 0))
938 force = 1;
939 if (access("/proc/net", R_OK))
940 force = 1;
941 }
942 for (aft = aftypes; *aft; aft++) {
943 struct aftype *af = *aft;
944 int type = SOCK_DGRAM;
945 if (af->af == AF_UNSPEC)
946 continue;
947 if (family && family != af->af)
948 continue;
949 if (af->fd != -1) {
950 sfd = af->fd;
951 continue;
952 }
953 /* Check some /proc file first to not stress kmod */
954 if (!family && !force && af->flag_file) {
955 if (access(af->flag_file, R_OK))
956 continue;
957 }
958#if HAVE_AFNETROM
959 if (af->af == AF_NETROM)
960 type = SOCK_SEQPACKET;
961#endif
962#if HAVE_AFX25
963 if (af->af == AF_X25)
964 type = SOCK_SEQPACKET;
965#endif
966 af->fd = socket(af->af, type, 0);
967 if (af->fd >= 0)
968 sfd = af->fd;
969 }
970 if (sfd < 0)
971 fprintf(stderr, _("No usable address families found.\n"));
972 return sfd;
973}
974
975/* like strcmp(), but knows about numbers */
976static int nstrcmp(const char *astr, const char *b)
977{
978 const char *a = astr;
979
980 while (*a == *b) {
981 if (*a == '\0')
982 return 0;
983 a++;
984 b++;
985 }
986 if (isdigit(*a)) {
987 if (!isdigit(*b))
988 return -1;
989 while (a > astr) {
990 a--;
991 if (!isdigit(*a)) {
992 a++;
993 break;
994 }
995 if (!isdigit(*b))
996 return -1;
997 b--;
998 }
999 return atoi(a) > atoi(b) ? 1 : -1;
1000 }
1001 return *a - *b;
1002}
1003
1004static struct interface *add_interface(char *name)
1005{
1006 struct interface *ife, **nextp, *new;
1007
1008 for (ife = int_last; ife; ife = ife->prev) {
1009 int n = nstrcmp(ife->name, name);
1010 if (n == 0)
1011 return ife;
1012 if (n < 0)
1013 break;
1014 }
1015 new(new);
1016 safe_strncpy(new->name, name, IFNAMSIZ);
1017 nextp = ife ? &ife->next : &int_list;
1018 new->prev = ife;
1019 new->next = *nextp;
1020 if (new->next)
1021 new->next->prev = new;
1022 else
1023 int_last = new;
1024 *nextp = new;
1025 return new;
1026}
1027
1028
1029static int if_readconf(void)
1030{
1031 int numreqs = 30;
1032 struct ifconf ifc;
1033 struct ifreq *ifr;
1034 int n, err = -1;
1035 /* XXX Should this re-use the global skfd? */
1036 int skfd2;
1037
1038 /* SIOCGIFCONF currently seems to only work properly on AF_INET sockets
1039 (as of 2.1.128) */
1040 skfd2 = get_socket_for_af(AF_INET);
1041 if (skfd2 < 0) {
1042 fprintf(stderr, _("warning: no inet socket available: %s\n"),
1043 strerror(errno));
1044 /* Try to soldier on with whatever socket we can get hold of. */
1045 skfd2 = sockets_open(0);
1046 if (skfd2 < 0)
1047 return -1;
1048 }
1049
1050 ifc.ifc_buf = NULL;
1051 for (;;) {
1052 ifc.ifc_len = sizeof(struct ifreq) * numreqs;
1053 ifc.ifc_buf = xrealloc(ifc.ifc_buf, ifc.ifc_len);
1054
1055 if (ioctl(skfd2, SIOCGIFCONF, &ifc) < 0) {
1056 perror("SIOCGIFCONF");
1057 goto out;
1058 }
1059 if (ifc.ifc_len == sizeof(struct ifreq) * numreqs) {
1060 /* assume it overflowed and try again */
1061 numreqs += 10;
1062 continue;
1063 }
1064 break;
1065 }
1066
1067 ifr = ifc.ifc_req;
1068 for (n = 0; n < ifc.ifc_len; n += sizeof(struct ifreq)) {
1069 add_interface(ifr->ifr_name);
1070 ifr++;
1071 }
1072 err = 0;
1073
1074out:
1075 free(ifc.ifc_buf);
1076 return err;
1077}
1078
1079static char *get_name(char *name, char *p)
1080{
1081 while (isspace(*p))
1082 p++;
1083 while (*p) {
1084 if (isspace(*p))
1085 break;
1086 if (*p == ':') { /* could be an alias */
1087 char *dot = p, *dotname = name;
1088 *name++ = *p++;
1089 while (isdigit(*p))
1090 *name++ = *p++;
1091 if (*p != ':') { /* it wasn't, backup */
1092 p = dot;
1093 name = dotname;
1094 }
1095 if (*p == '\0')
1096 return NULL;
1097 p++;
1098 break;
1099 }
1100 *name++ = *p++;
1101 }
1102 *name++ = '\0';
1103 return p;
1104}
1105
1106static int get_dev_fields(char *bp, struct interface *ife)
1107{
1108 switch (procnetdev_vsn) {
1109 case 3:
1110 sscanf(bp,
1111 "%Lu %Lu %lu %lu %lu %lu %lu %lu %Lu %Lu %lu %lu %lu %lu %lu %lu",
1112 &ife->stats.rx_bytes,
1113 &ife->stats.rx_packets,
1114 &ife->stats.rx_errors,
1115 &ife->stats.rx_dropped,
1116 &ife->stats.rx_fifo_errors,
1117 &ife->stats.rx_frame_errors,
1118 &ife->stats.rx_compressed,
1119 &ife->stats.rx_multicast,
1120
1121 &ife->stats.tx_bytes,
1122 &ife->stats.tx_packets,
1123 &ife->stats.tx_errors,
1124 &ife->stats.tx_dropped,
1125 &ife->stats.tx_fifo_errors,
1126 &ife->stats.collisions,
1127 &ife->stats.tx_carrier_errors,
1128 &ife->stats.tx_compressed);
1129 break;
1130 case 2:
1131 sscanf(bp, "%Lu %Lu %lu %lu %lu %lu %Lu %Lu %lu %lu %lu %lu %lu",
1132 &ife->stats.rx_bytes,
1133 &ife->stats.rx_packets,
1134 &ife->stats.rx_errors,
1135 &ife->stats.rx_dropped,
1136 &ife->stats.rx_fifo_errors,
1137 &ife->stats.rx_frame_errors,
1138
1139 &ife->stats.tx_bytes,
1140 &ife->stats.tx_packets,
1141 &ife->stats.tx_errors,
1142 &ife->stats.tx_dropped,
1143 &ife->stats.tx_fifo_errors,
1144 &ife->stats.collisions,
1145 &ife->stats.tx_carrier_errors);
1146 ife->stats.rx_multicast = 0;
1147 break;
1148 case 1:
1149 sscanf(bp, "%Lu %lu %lu %lu %lu %Lu %lu %lu %lu %lu %lu",
1150 &ife->stats.rx_packets,
1151 &ife->stats.rx_errors,
1152 &ife->stats.rx_dropped,
1153 &ife->stats.rx_fifo_errors,
1154 &ife->stats.rx_frame_errors,
1155
1156 &ife->stats.tx_packets,
1157 &ife->stats.tx_errors,
1158 &ife->stats.tx_dropped,
1159 &ife->stats.tx_fifo_errors,
1160 &ife->stats.collisions,
1161 &ife->stats.tx_carrier_errors);
1162 ife->stats.rx_bytes = 0;
1163 ife->stats.tx_bytes = 0;
1164 ife->stats.rx_multicast = 0;
1165 break;
1166 }
1167 return 0;
1168}
1169
1170static inline int procnetdev_version(char *buf)
1171{
1172 if (strstr(buf, "compressed"))
1173 return 3;
1174 if (strstr(buf, "bytes"))
1175 return 2;
1176 return 1;
1177}
1178
1179static int if_readlist_proc(char *target)
1180{
1181 static int proc_read;
1182 FILE *fh;
1183 char buf[512];
1184 struct interface *ife;
1185 int err;
1186
1187 if (proc_read)
1188 return 0;
1189 if (!target)
1190 proc_read = 1;
1191
1192 fh = fopen(_PATH_PROCNET_DEV, "r");
1193 if (!fh) {
1194 fprintf(stderr, _("Warning: cannot open %s (%s). Limited output.\n"),
1195 _PATH_PROCNET_DEV, strerror(errno));
1196 return if_readconf();
1197 }
1198 fgets(buf, sizeof buf, fh); /* eat line */
1199 fgets(buf, sizeof buf, fh);
1200
1201#if 0 /* pretty, but can't cope with missing fields */
1202 fmt = proc_gen_fmt(_PATH_PROCNET_DEV, 1, fh,
1203 "face", "", /* parsed separately */
1204 "bytes", "%lu",
1205 "packets", "%lu",
1206 "errs", "%lu",
1207 "drop", "%lu",
1208 "fifo", "%lu",
1209 "frame", "%lu",
1210 "compressed", "%lu",
1211 "multicast", "%lu",
1212 "bytes", "%lu",
1213 "packets", "%lu",
1214 "errs", "%lu",
1215 "drop", "%lu",
1216 "fifo", "%lu",
1217 "colls", "%lu",
1218 "carrier", "%lu",
1219 "compressed", "%lu",
1220 NULL);
1221 if (!fmt)
1222 return -1;
1223#else
1224 procnetdev_vsn = procnetdev_version(buf);
1225#endif
1226
1227 err = 0;
1228 while (fgets(buf, sizeof buf, fh)) {
1229 char *s, name[IFNAMSIZ];
1230 s = get_name(name, buf);
1231 ife = add_interface(name);
1232 get_dev_fields(s, ife);
1233 ife->statistics_valid = 1;
1234 if (target && !strcmp(target,name))
1235 break;
1236 }
1237 if (ferror(fh)) {
1238 perror(_PATH_PROCNET_DEV);
1239 err = -1;
1240 proc_read = 0;
1241 }
1242
1243#if 0
1244 free(fmt);
1245#endif
1246 fclose(fh);
1247 return err;
1248}
1249
1250static int if_readlist(void)
1251{
1252 int err = if_readlist_proc(NULL);
1253 if (!err)
1254 err = if_readconf();
1255 return err;
1256}
1257
1258static int for_all_interfaces(int (*doit) (struct interface *, void *), void *cookie)
1259{
1260 struct interface *ife;
1261
1262 if (!int_list && (if_readlist() < 0))
1263 return -1;
1264 for (ife = int_list; ife; ife = ife->next) {
1265 int err = doit(ife, cookie);
1266 if (err)
1267 return err;
1268 }
1269 return 0;
1270}
1271
1272/* Support for fetching an IPX address */
1273
1274#if HAVE_AFIPX
1275static int ipx_getaddr(int sock, int ft, struct ifreq *ifr)
1276{
1277 ((struct sockaddr_ipx *) &ifr->ifr_addr)->sipx_type = ft;
1278 return ioctl(sock, SIOCGIFADDR, ifr);
1279}
1280#endif
1281
1282
1283/* Fetch the interface configuration from the kernel. */
1284static int if_fetch(struct interface *ife)
1285{
1286 struct ifreq ifr;
1287 int fd;
1288 char *ifname = ife->name;
1289
1290 strcpy(ifr.ifr_name, ifname);
1291 if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0)
1292 return (-1);
1293 ife->flags = ifr.ifr_flags;
1294
1295 strcpy(ifr.ifr_name, ifname);
1296 if (ioctl(skfd, SIOCGIFHWADDR, &ifr) < 0)
1297 memset(ife->hwaddr, 0, 32);
1298 else
1299 memcpy(ife->hwaddr, ifr.ifr_hwaddr.sa_data, 8);
1300
1301 ife->type = ifr.ifr_hwaddr.sa_family;
1302
1303 strcpy(ifr.ifr_name, ifname);
1304 if (ioctl(skfd, SIOCGIFMETRIC, &ifr) < 0)
1305 ife->metric = 0;
1306 else
1307 ife->metric = ifr.ifr_metric;
1308
1309 strcpy(ifr.ifr_name, ifname);
1310 if (ioctl(skfd, SIOCGIFMTU, &ifr) < 0)
1311 ife->mtu = 0;
1312 else
1313 ife->mtu = ifr.ifr_mtu;
1314
1315#ifdef HAVE_HWSLIP
1316 if (ife->type == ARPHRD_SLIP || ife->type == ARPHRD_CSLIP ||
1317 ife->type == ARPHRD_SLIP6 || ife->type == ARPHRD_CSLIP6 ||
1318 ife->type == ARPHRD_ADAPT) {
1319#ifdef SIOCGOUTFILL
1320 strcpy(ifr.ifr_name, ifname);
1321 if (ioctl(skfd, SIOCGOUTFILL, &ifr) < 0)
1322 ife->outfill = 0;
1323 else
1324 ife->outfill = (unsigned int) ifr.ifr_data;
1325#endif
1326#ifdef SIOCGKEEPALIVE
1327 strcpy(ifr.ifr_name, ifname);
1328 if (ioctl(skfd, SIOCGKEEPALIVE, &ifr) < 0)
1329 ife->keepalive = 0;
1330 else
1331 ife->keepalive = (unsigned int) ifr.ifr_data;
1332#endif
1333 }
1334#endif
1335
1336 strcpy(ifr.ifr_name, ifname);
1337 if (ioctl(skfd, SIOCGIFMAP, &ifr) < 0)
1338 memset(&ife->map, 0, sizeof(struct ifmap));
1339 else
1340 memcpy(&ife->map, &ifr.ifr_map, sizeof(struct ifmap));
1341
1342 strcpy(ifr.ifr_name, ifname);
1343 if (ioctl(skfd, SIOCGIFMAP, &ifr) < 0)
1344 memset(&ife->map, 0, sizeof(struct ifmap));
1345 else
1346 ife->map = ifr.ifr_map;
1347
1348#ifdef HAVE_TXQUEUELEN
1349 strcpy(ifr.ifr_name, ifname);
1350 if (ioctl(skfd, SIOCGIFTXQLEN, &ifr) < 0)
1351 ife->tx_queue_len = -1; /* unknown value */
1352 else
1353 ife->tx_queue_len = ifr.ifr_qlen;
1354#else
1355 ife->tx_queue_len = -1; /* unknown value */
1356#endif
1357
1358#if HAVE_AFINET
1359 /* IPv4 address? */
1360 fd = get_socket_for_af(AF_INET);
1361 if (fd >= 0) {
1362 strcpy(ifr.ifr_name, ifname);
1363 ifr.ifr_addr.sa_family = AF_INET;
1364 if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
1365 ife->has_ip = 1;
1366 ife->addr = ifr.ifr_addr;
1367 strcpy(ifr.ifr_name, ifname);
1368 if (ioctl(fd, SIOCGIFDSTADDR, &ifr) < 0)
1369 memset(&ife->dstaddr, 0, sizeof(struct sockaddr));
1370 else
1371 ife->dstaddr = ifr.ifr_dstaddr;
1372
1373 strcpy(ifr.ifr_name, ifname);
1374 if (ioctl(fd, SIOCGIFBRDADDR, &ifr) < 0)
1375 memset(&ife->broadaddr, 0, sizeof(struct sockaddr));
1376 else
1377 ife->broadaddr = ifr.ifr_broadaddr;
1378
1379 strcpy(ifr.ifr_name, ifname);
1380 if (ioctl(fd, SIOCGIFNETMASK, &ifr) < 0)
1381 memset(&ife->netmask, 0, sizeof(struct sockaddr));
1382 else
1383 ife->netmask = ifr.ifr_netmask;
1384 } else
1385 memset(&ife->addr, 0, sizeof(struct sockaddr));
1386 }
1387#endif
1388
1389#if HAVE_AFATALK
1390 /* DDP address maybe ? */
1391 fd = get_socket_for_af(AF_APPLETALK);
1392 if (fd >= 0) {
1393 strcpy(ifr.ifr_name, ifname);
1394 if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
1395 ife->ddpaddr = ifr.ifr_addr;
1396 ife->has_ddp = 1;
1397 }
1398 }
1399#endif
1400
1401#if HAVE_AFIPX
1402 /* Look for IPX addresses with all framing types */
1403 fd = get_socket_for_af(AF_IPX);
1404 if (fd >= 0) {
1405 strcpy(ifr.ifr_name, ifname);
1406 if (!ipx_getaddr(fd, IPX_FRAME_ETHERII, &ifr)) {
1407 ife->has_ipx_bb = 1;
1408 ife->ipxaddr_bb = ifr.ifr_addr;
1409 }
1410 strcpy(ifr.ifr_name, ifname);
1411 if (!ipx_getaddr(fd, IPX_FRAME_SNAP, &ifr)) {
1412 ife->has_ipx_sn = 1;
1413 ife->ipxaddr_sn = ifr.ifr_addr;
1414 }
1415 strcpy(ifr.ifr_name, ifname);
1416 if (!ipx_getaddr(fd, IPX_FRAME_8023, &ifr)) {
1417 ife->has_ipx_e3 = 1;
1418 ife->ipxaddr_e3 = ifr.ifr_addr;
1419 }
1420 strcpy(ifr.ifr_name, ifname);
1421 if (!ipx_getaddr(fd, IPX_FRAME_8022, &ifr)) {
1422 ife->has_ipx_e2 = 1;
1423 ife->ipxaddr_e2 = ifr.ifr_addr;
1424 }
1425 }
1426#endif
1427
1428#if HAVE_AFECONET
1429 /* Econet address maybe? */
1430 fd = get_socket_for_af(AF_ECONET);
1431 if (fd >= 0) {
1432 strcpy(ifr.ifr_name, ifname);
1433 if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
1434 ife->ecaddr = ifr.ifr_addr;
1435 ife->has_econet = 1;
1436 }
1437 }
1438#endif
1439
1440 return 0;
1441}
1442
1443
1444static int do_if_fetch(struct interface *ife)
1445{
1446 if (if_fetch(ife) < 0) {
1447 char *errmsg;
1448 if (errno == ENODEV) {
1449 /* Give better error message for this case. */
1450 errmsg = _("Device not found");
1451 } else {
1452 errmsg = strerror(errno);
1453 }
1454 fprintf(stderr, _("%s: error fetching interface information: %s\n"),
1455 ife->name, errmsg);
1456 return -1;
1457 }
1458 return 0;
1459}
1460
1461/* This structure defines hardware protocols and their handlers. */
1462struct hwtype {
1463 const char *name;
1464 const char *title;
1465 int type;
1466 int alen;
1467 char *(*print) (unsigned char *);
1468 int (*input) (char *, struct sockaddr *);
1469 int (*activate) (int fd);
1470 int suppress_null_addr;
1471};
1472
1473static struct hwtype unspec_hwtype =
1474{
1475 "unspec", "UNSPEC", -1, 0,
1476 UNSPEC_print, NULL, NULL
1477};
1478
1479static struct hwtype loop_hwtype =
1480{
1481 "loop", "Local Loopback", ARPHRD_LOOPBACK, 0,
1482 NULL, NULL, NULL
1483};
1484
1485#if HAVE_HWETHER
1486#include <net/if_arp.h>
1487#include <linux/if_ether.h>
1488
1489static struct hwtype ether_hwtype;
1490
1491/* Display an Ethernet address in readable format. */
1492static char *pr_ether(unsigned char *ptr)
1493{
1494 static char buff[64];
1495
1496 snprintf(buff, sizeof(buff), "%02X:%02X:%02X:%02X:%02X:%02X",
1497 (ptr[0] & 0377), (ptr[1] & 0377), (ptr[2] & 0377),
1498 (ptr[3] & 0377), (ptr[4] & 0377), (ptr[5] & 0377)
1499 );
1500 return (buff);
1501}
1502
1503#ifdef KEEP_UNUSED
1504/* Input an Ethernet address and convert to binary. */
1505static int in_ether(char *bufp, struct sockaddr *sap)
1506{
1507 unsigned char *ptr;
1508 char c, *orig;
1509 int i;
1510 unsigned val;
1511
1512 sap->sa_family = ether_hwtype.type;
1513 ptr = sap->sa_data;
1514
1515 i = 0;
1516 orig = bufp;
1517 while ((*bufp != '\0') && (i < ETH_ALEN)) {
1518 val = 0;
1519 c = *bufp++;
1520 if (isdigit(c))
1521 val = c - '0';
1522 else if (c >= 'a' && c <= 'f')
1523 val = c - 'a' + 10;
1524 else if (c >= 'A' && c <= 'F')
1525 val = c - 'A' + 10;
1526 else {
1527#ifdef DEBUG
1528 fprintf(stderr, _("in_ether(%s): invalid ether address!\n"), orig);
1529#endif
1530 errno = EINVAL;
1531 return (-1);
1532 }
1533 val <<= 4;
1534 c = *bufp;
1535 if (isdigit(c))
1536 val |= c - '0';
1537 else if (c >= 'a' && c <= 'f')
1538 val |= c - 'a' + 10;
1539 else if (c >= 'A' && c <= 'F')
1540 val |= c - 'A' + 10;
1541 else if (c == ':' || c == 0)
1542 val >>= 4;
1543 else {
1544#ifdef DEBUG
1545 fprintf(stderr, _("in_ether(%s): invalid ether address!\n"), orig);
1546#endif
1547 errno = EINVAL;
1548 return (-1);
1549 }
1550 if (c != 0)
1551 bufp++;
1552 *ptr++ = (unsigned char) (val & 0377);
1553 i++;
1554
1555 /* We might get a semicolon here - not required. */
1556 if (*bufp == ':') {
1557 if (i == ETH_ALEN) {
1558#ifdef DEBUG
1559 fprintf(stderr, _("in_ether(%s): trailing : ignored!\n"),
1560 orig)
1561#endif
1562 ; /* nothing */
1563 }
1564 bufp++;
1565 }
1566 }
1567
1568 /* That's it. Any trailing junk? */
1569 if ((i == ETH_ALEN) && (*bufp != '\0')) {
1570#ifdef DEBUG
1571 fprintf(stderr, _("in_ether(%s): trailing junk!\n"), orig);
1572 errno = EINVAL;
1573 return (-1);
1574#endif
1575 }
1576#ifdef DEBUG
1577 fprintf(stderr, "in_ether(%s): %s\n", orig, pr_ether(sap->sa_data));
1578#endif
1579
1580 return (0);
1581}
1582#endif /* KEEP_UNUSED */
1583
1584
1585static struct hwtype ether_hwtype =
1586{
1587 "ether", "Ethernet", ARPHRD_ETHER, ETH_ALEN,
1588 pr_ether, NULL /* UNUSED in_ether */, NULL
1589};
1590
1591
1592#endif /* HAVE_HWETHER */
1593
1594
1595#if HAVE_HWPPP
1596
1597#include <net/if_arp.h>
1598
1599#ifdef KEEP_UNUSED
1600/* Start the PPP encapsulation on the file descriptor. */
1601static int do_ppp(int fd)
1602{
1603 fprintf(stderr, _("You cannot start PPP with this program.\n"));
1604 return -1;
1605}
1606#endif /* KEEP_UNUSED */
1607
1608static struct hwtype ppp_hwtype =
1609{
1610 "ppp", "Point-Point Protocol", ARPHRD_PPP, 0,
1611 NULL, NULL, NULL /* UNUSED do_ppp */, 0
1612};
1613
1614
1615#endif /* HAVE_PPP */
1616
1617static struct hwtype *hwtypes[] =
1618{
1619
1620 &loop_hwtype,
1621
1622#if HAVE_HWSLIP
1623 &slip_hwtype,
1624 &cslip_hwtype,
1625 &slip6_hwtype,
1626 &cslip6_hwtype,
1627 &adaptive_hwtype,
1628#endif
1629#if HAVE_HWSTRIP
1630 &strip_hwtype,
1631#endif
1632#if HAVE_HWASH
1633 &ash_hwtype,
1634#endif
1635#if HAVE_HWETHER
1636 &ether_hwtype,
1637#endif
1638#if HAVE_HWTR
1639 &tr_hwtype,
1640#ifdef ARPHRD_IEEE802_TR
1641 &tr_hwtype1,
1642#endif
1643#endif
1644#if HAVE_HWAX25
1645 &ax25_hwtype,
1646#endif
1647#if HAVE_HWNETROM
1648 &netrom_hwtype,
1649#endif
1650#if HAVE_HWROSE
1651 &rose_hwtype,
1652#endif
1653#if HAVE_HWTUNNEL
1654 &tunnel_hwtype,
1655#endif
1656#if HAVE_HWPPP
1657 &ppp_hwtype,
1658#endif
1659#if HAVE_HWHDLCLAPB
1660 &hdlc_hwtype,
1661 &lapb_hwtype,
1662#endif
1663#if HAVE_HWARC
1664 &arcnet_hwtype,
1665#endif
1666#if HAVE_HWFR
1667 &dlci_hwtype,
1668 &frad_hwtype,
1669#endif
1670#if HAVE_HWSIT
1671 &sit_hwtype,
1672#endif
1673#if HAVE_HWFDDI
1674 &fddi_hwtype,
1675#endif
1676#if HAVE_HWHIPPI
1677 &hippi_hwtype,
1678#endif
1679#if HAVE_HWIRDA
1680 &irda_hwtype,
1681#endif
1682#if HAVE_HWEC
1683 &ec_hwtype,
1684#endif
1685#if HAVE_HWX25
1686 &x25_hwtype,
1687#endif
1688 &unspec_hwtype,
1689 NULL
1690};
1691
1692#ifdef KEEP_UNUSED
1693static short sVhwinit = 0;
1694
1695static void hwinit()
1696{
1697 loop_hwtype.title = _("Local Loopback");
1698 unspec_hwtype.title = _("UNSPEC");
1699#if HAVE_HWSLIP
1700 slip_hwtype.title = _("Serial Line IP");
1701 cslip_hwtype.title = _("VJ Serial Line IP");
1702 slip6_hwtype.title = _("6-bit Serial Line IP");
1703 cslip6_hwtype.title = _("VJ 6-bit Serial Line IP");
1704 adaptive_hwtype.title = _("Adaptive Serial Line IP");
1705#endif
1706#if HAVE_HWETHER
1707 ether_hwtype.title = _("Ethernet");
1708#endif
1709#if HAVE_HWASH
1710 ash_hwtype.title = _("Ash");
1711#endif
1712#if HAVE_HWFDDI
1713 fddi_hwtype.title = _("Fiber Distributed Data Interface");
1714#endif
1715#if HAVE_HWHIPPI
1716 hippi_hwtype.title = _("HIPPI");
1717#endif
1718#if HAVE_HWAX25
1719 ax25_hwtype.title = _("AMPR AX.25");
1720#endif
1721#if HAVE_HWROSE
1722 rose_hwtype.title = _("AMPR ROSE");
1723#endif
1724#if HAVE_HWNETROM
1725 netrom_hwtype.title = _("AMPR NET/ROM");
1726#endif
1727#if HAVE_HWX25
1728 x25_hwtype.title = _("generic X.25");
1729#endif
1730#if HAVE_HWTUNNEL
1731 tunnel_hwtype.title = _("IPIP Tunnel");
1732#endif
1733#if HAVE_HWPPP
1734 ppp_hwtype.title = _("Point-to-Point Protocol");
1735#endif
1736#if HAVE_HWHDLCLAPB
1737 hdlc_hwtype.title = _("(Cisco)-HDLC");
1738 lapb_hwtype.title = _("LAPB");
1739#endif
1740#if HAVE_HWARC
1741 arcnet_hwtype.title = _("ARCnet");
1742#endif
1743#if HAVE_HWFR
1744 dlci_hwtype.title = _("Frame Relay DLCI");
1745 frad_hwtype.title = _("Frame Relay Access Device");
1746#endif
1747#if HAVE_HWSIT
1748 sit_hwtype.title = _("IPv6-in-IPv4");
1749#endif
1750#if HAVE_HWIRDA
1751 irda_hwtype.title = _("IrLAP");
1752#endif
1753#if HAVE_HWTR
1754 tr_hwtype.title = _("16/4 Mbps Token Ring");
1755#ifdef ARPHRD_IEEE802_TR
1756 tr_hwtype1.title = _("16/4 Mbps Token Ring (New)") ;
1757#endif
1758#endif
1759#if HAVE_HWEC
1760 ec_hwtype.title = _("Econet");
1761#endif
1762 sVhwinit = 1;
1763}
1764#endif /* KEEP_UNUSED */
1765
1766#ifdef IFF_PORTSEL
1767static const char *if_port_text[][4] =
1768{
1769 /* Keep in step with <linux/netdevice.h> */
1770 {"unknown", NULL, NULL, NULL},
1771 {"10base2", "bnc", "coax", NULL},
1772 {"10baseT", "utp", "tpe", NULL},
1773 {"AUI", "thick", "db15", NULL},
1774 {"100baseT", NULL, NULL, NULL},
1775 {"100baseTX", NULL, NULL, NULL},
1776 {"100baseFX", NULL, NULL, NULL},
1777 {NULL, NULL, NULL, NULL},
1778};
1779#endif
1780
1781/* Check our hardware type table for this type. */
1782static struct hwtype *get_hwntype(int type)
1783{
1784 struct hwtype **hwp;
1785
1786#ifdef KEEP_UNUSED
1787 if (!sVhwinit)
1788 hwinit();
1789#endif /* KEEP_UNUSED */
1790
1791 hwp = hwtypes;
1792 while (*hwp != NULL) {
1793 if ((*hwp)->type == type)
1794 return (*hwp);
1795 hwp++;
1796 }
1797 return (NULL);
1798}
1799
1800/* return 1 if address is all zeros */
1801static int hw_null_address(struct hwtype *hw, void *ap)
1802{
1803 unsigned int i;
1804 unsigned char *address = (unsigned char *)ap;
1805 for (i = 0; i < hw->alen; i++)
1806 if (address[i])
1807 return 0;
1808 return 1;
1809}
1810
1811static const char TRext[] = "\0\0k\0M";
1812
1813static void print_bytes_scaled(unsigned long long ull, const char *end)
1814{
1815 unsigned long long int_part;
1816 unsigned long frac_part;
1817 const char *ext;
1818 int i;
1819
1820 frac_part = 0;
1821 ext = TRext;
1822 int_part = ull;
1823 for (i=0 ; i<2 ; i++) {
1824 if (int_part >= 1024) {
1825 frac_part = ((int_part % 1024) * 10) / 1024;
1826 int_part /= 1024;
1827 ext += 2; /* Kb, Mb */
1828 }
1829 }
1830
1831 printf("X bytes:%Lu (%Lu.%lu %sb)%s", ull, int_part, frac_part, ext, end);
1832}
1833
1834static void ife_print(struct interface *ptr)
1835{
1836 struct aftype *ap;
1837 struct hwtype *hw;
1838 int hf;
1839 int can_compress = 0;
1840
1841#if HAVE_AFIPX
1842 static struct aftype *ipxtype = NULL;
1843#endif
1844#if HAVE_AFECONET
1845 static struct aftype *ectype = NULL;
1846#endif
1847#if HAVE_AFATALK
1848 static struct aftype *ddptype = NULL;
1849#endif
1850#if HAVE_AFINET6
1851 FILE *f;
1852 char addr6[40], devname[20];
1853 struct sockaddr_in6 sap;
1854 int plen, scope, dad_status, if_idx;
1855 extern struct aftype inet6_aftype;
1856 char addr6p[8][5];
1857#endif
1858
1859 ap = get_afntype(ptr->addr.sa_family);
1860 if (ap == NULL)
1861 ap = get_afntype(0);
1862
1863 hf = ptr->type;
1864
1865 if (hf == ARPHRD_CSLIP || hf == ARPHRD_CSLIP6)
1866 can_compress = 1;
1867
1868 hw = get_hwntype(hf);
1869 if (hw == NULL)
1870 hw = get_hwntype(-1);
1871
1872 printf(_("%-9.9s Link encap:%s "), ptr->name, _(hw->title));
1873 /* For some hardware types (eg Ash, ATM) we don't print the
1874 hardware address if it's null. */
1875 if (hw->print != NULL && (! (hw_null_address(hw, ptr->hwaddr) &&
1876 hw->suppress_null_addr)))
1877 printf(_("HWaddr %s "), hw->print(ptr->hwaddr));
1878#ifdef IFF_PORTSEL
1879 if (ptr->flags & IFF_PORTSEL) {
1880 printf(_("Media:%s"), if_port_text[ptr->map.port][0]);
1881 if (ptr->flags & IFF_AUTOMEDIA)
1882 printf(_("(auto)"));
1883 }
1884#endif
1885 printf("\n");
1886
1887#if HAVE_AFINET
1888 if (ptr->has_ip) {
1889 printf(_(" %s addr:%s "), ap->name,
1890 ap->sprint(&ptr->addr, 1));
1891 if (ptr->flags & IFF_POINTOPOINT) {
1892 printf(_(" P-t-P:%s "), ap->sprint(&ptr->dstaddr, 1));
1893 }
1894 if (ptr->flags & IFF_BROADCAST) {
1895 printf(_(" Bcast:%s "), ap->sprint(&ptr->broadaddr, 1));
1896 }
1897 printf(_(" Mask:%s\n"), ap->sprint(&ptr->netmask, 1));
1898 }
1899#endif
1900
1901#if HAVE_AFINET6
1902 /* FIXME: should be integrated into interface.c. */
1903
1904 if ((f = fopen(_PATH_PROCNET_IFINET6, "r")) != NULL) {
1905 while (fscanf(f, "%4s%4s%4s%4s%4s%4s%4s%4s %02x %02x %02x %02x %20s\n",
1906 addr6p[0], addr6p[1], addr6p[2], addr6p[3],
1907 addr6p[4], addr6p[5], addr6p[6], addr6p[7],
1908 &if_idx, &plen, &scope, &dad_status, devname) != EOF) {
1909 if (!strcmp(devname, ptr->name)) {
1910 sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s",
1911 addr6p[0], addr6p[1], addr6p[2], addr6p[3],
1912 addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
1913 inet6_aftype.input(1, addr6, (struct sockaddr *) &sap);
1914 printf(_(" inet6 addr: %s/%d"),
1915 inet6_aftype.sprint((struct sockaddr *) &sap, 1), plen);
1916 printf(_(" Scope:"));
1917 switch (scope) {
1918 case 0:
1919 printf(_("Global"));
1920 break;
1921 case IPV6_ADDR_LINKLOCAL:
1922 printf(_("Link"));
1923 break;
1924 case IPV6_ADDR_SITELOCAL:
1925 printf(_("Site"));
1926 break;
1927 case IPV6_ADDR_COMPATv4:
1928 printf(_("Compat"));
1929 break;
1930 case IPV6_ADDR_LOOPBACK:
1931 printf(_("Host"));
1932 break;
1933 default:
1934 printf(_("Unknown"));
1935 }
1936 printf("\n");
1937 }
1938 }
1939 fclose(f);
1940 }
1941#endif
1942
1943#if HAVE_AFIPX
1944 if (ipxtype == NULL)
1945 ipxtype = get_afntype(AF_IPX);
1946
1947 if (ipxtype != NULL) {
1948 if (ptr->has_ipx_bb)
1949 printf(_(" IPX/Ethernet II addr:%s\n"),
1950 ipxtype->sprint(&ptr->ipxaddr_bb, 1));
1951 if (ptr->has_ipx_sn)
1952 printf(_(" IPX/Ethernet SNAP addr:%s\n"),
1953 ipxtype->sprint(&ptr->ipxaddr_sn, 1));
1954 if (ptr->has_ipx_e2)
1955 printf(_(" IPX/Ethernet 802.2 addr:%s\n"),
1956 ipxtype->sprint(&ptr->ipxaddr_e2, 1));
1957 if (ptr->has_ipx_e3)
1958 printf(_(" IPX/Ethernet 802.3 addr:%s\n"),
1959 ipxtype->sprint(&ptr->ipxaddr_e3, 1));
1960 }
1961#endif
1962
1963#if HAVE_AFATALK
1964 if (ddptype == NULL)
1965 ddptype = get_afntype(AF_APPLETALK);
1966 if (ddptype != NULL) {
1967 if (ptr->has_ddp)
1968 printf(_(" EtherTalk Phase 2 addr:%s\n"), ddptype->sprint(&ptr->ddpaddr, 1));
1969 }
1970#endif
1971
1972#if HAVE_AFECONET
1973 if (ectype == NULL)
1974 ectype = get_afntype(AF_ECONET);
1975 if (ectype != NULL) {
1976 if (ptr->has_econet)
1977 printf(_(" econet addr:%s\n"), ectype->sprint(&ptr->ecaddr, 1));
1978 }
1979#endif
1980
1981 printf(" ");
1982 /* DONT FORGET TO ADD THE FLAGS IN ife_print_short, too */
1983 if (ptr->flags == 0)
1984 printf(_("[NO FLAGS] "));
1985 if (ptr->flags & IFF_UP)
1986 printf(_("UP "));
1987 if (ptr->flags & IFF_BROADCAST)
1988 printf(_("BROADCAST "));
1989 if (ptr->flags & IFF_DEBUG)
1990 printf(_("DEBUG "));
1991 if (ptr->flags & IFF_LOOPBACK)
1992 printf(_("LOOPBACK "));
1993 if (ptr->flags & IFF_POINTOPOINT)
1994 printf(_("POINTOPOINT "));
1995 if (ptr->flags & IFF_NOTRAILERS)
1996 printf(_("NOTRAILERS "));
1997 if (ptr->flags & IFF_RUNNING)
1998 printf(_("RUNNING "));
1999 if (ptr->flags & IFF_NOARP)
2000 printf(_("NOARP "));
2001 if (ptr->flags & IFF_PROMISC)
2002 printf(_("PROMISC "));
2003 if (ptr->flags & IFF_ALLMULTI)
2004 printf(_("ALLMULTI "));
2005 if (ptr->flags & IFF_SLAVE)
2006 printf(_("SLAVE "));
2007 if (ptr->flags & IFF_MASTER)
2008 printf(_("MASTER "));
2009 if (ptr->flags & IFF_MULTICAST)
2010 printf(_("MULTICAST "));
2011#ifdef HAVE_DYNAMIC
2012 if (ptr->flags & IFF_DYNAMIC)
2013 printf(_("DYNAMIC "));
2014#endif
2015 /* DONT FORGET TO ADD THE FLAGS IN ife_print_short */
2016 printf(_(" MTU:%d Metric:%d"),
2017 ptr->mtu, ptr->metric ? ptr->metric : 1);
2018#ifdef SIOCSKEEPALIVE
2019 if (ptr->outfill || ptr->keepalive)
2020 printf(_(" Outfill:%d Keepalive:%d"),
2021 ptr->outfill, ptr->keepalive);
2022#endif
2023 printf("\n");
2024
2025 /* If needed, display the interface statistics. */
2026
2027 if (ptr->statistics_valid) {
2028 /* XXX: statistics are currently only printed for the primary address,
2029 * not for the aliases, although strictly speaking they're shared
2030 * by all addresses.
2031 */
2032 printf(" ");
2033
2034 printf(_("RX packets:%Lu errors:%lu dropped:%lu overruns:%lu frame:%lu\n"),
2035 ptr->stats.rx_packets, ptr->stats.rx_errors,
2036 ptr->stats.rx_dropped, ptr->stats.rx_fifo_errors,
2037 ptr->stats.rx_frame_errors);
2038 if (can_compress)
2039 printf(_(" compressed:%lu\n"), ptr->stats.rx_compressed);
2040 printf(" ");
2041 printf(_("TX packets:%Lu errors:%lu dropped:%lu overruns:%lu carrier:%lu\n"),
2042 ptr->stats.tx_packets, ptr->stats.tx_errors,
2043 ptr->stats.tx_dropped, ptr->stats.tx_fifo_errors,
2044 ptr->stats.tx_carrier_errors);
2045 printf(_(" collisions:%lu "), ptr->stats.collisions);
2046 if (can_compress)
2047 printf(_("compressed:%lu "), ptr->stats.tx_compressed);
2048 if (ptr->tx_queue_len != -1)
2049 printf(_("txqueuelen:%d "), ptr->tx_queue_len);
2050 printf("\n R");
2051 print_bytes_scaled(ptr->stats.rx_bytes, " T");
2052 print_bytes_scaled(ptr->stats.tx_bytes, "\n");
2053
2054 }
2055
2056 if ((ptr->map.irq || ptr->map.mem_start || ptr->map.dma ||
2057 ptr->map.base_addr)) {
2058 printf(" ");
2059 if (ptr->map.irq)
2060 printf(_("Interrupt:%d "), ptr->map.irq);
2061 if (ptr->map.base_addr >= 0x100) /* Only print devices using it for
2062 I/O maps */
2063 printf(_("Base address:0x%x "), ptr->map.base_addr);
2064 if (ptr->map.mem_start) {
2065 printf(_("Memory:%lx-%lx "), ptr->map.mem_start, ptr->map.mem_end);
2066 }
2067 if (ptr->map.dma)
2068 printf(_("DMA chan:%x "), ptr->map.dma);
2069 printf("\n");
2070 }
2071 printf("\n");
2072}
2073
2074
2075static int do_if_print(struct interface *ife, void *cookie)
2076{
2077 int *opt_a = (int *) cookie;
2078 int res;
2079
2080 res = do_if_fetch(ife);
2081 if (res >= 0) {
2082 if ((ife->flags & IFF_UP) || *opt_a)
2083 ife_print(ife);
2084 }
2085 return res;
2086}
2087
2088static struct interface *lookup_interface(char *name)
2089{
2090 struct interface *ife = NULL;
2091
2092 if (if_readlist_proc(name) < 0)
2093 return NULL;
2094 ife = add_interface(name);
2095 return ife;
2096}
2097
2098/* for ipv4 add/del modes */
2099static int if_print(char *ifname)
2100{
2101 int res;
2102
2103 if (!ifname) {
2104 res = for_all_interfaces(do_if_print, &interface_opt_a);
2105 } else {
2106 struct interface *ife;
2107
2108 ife = lookup_interface(ifname);
2109 res = do_if_fetch(ife);
2110 if (res >= 0)
2111 ife_print(ife);
2112 }
2113 return res;
2114}
2115
2116int display_interfaces(char *ifname)
2117{
2118 int status;
2119
2120 /* Create a channel to the NET kernel. */
2121 if ((skfd = sockets_open(0)) < 0) {
2122 perror_msg_and_die("socket");
2123 }
2124
2125 /* Do we have to show the current setup? */
2126 status = if_print(ifname);
2127 close(skfd);
2128 exit(status < 0);
2129}
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-03-24 12:31:03 +0000