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authorEric Andersen <andersen@codepoet.org>2001-03-06 00:48:59 +0000
committerEric Andersen <andersen@codepoet.org>2001-03-06 00:48:59 +0000
commitf15d4dad66374f1b035e2ee59a6495ab4743646a (patch)
tree4eadd327d98aa598444f1f7bfecf6ba08b62e0e6
parent5efa2291aa133feac7c46e0fa853becf4116f998 (diff)
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Add in a first pass at ifconfig status reporting. It took a long while
hacking on the mess in net-tools-1.59, but it currently adds 12k and supports ethernet, loop, ppp, and treats everything else as a generic interface. Works ok for me. -Erik
Diffstat
-rw-r--r--Config.h10
-rw-r--r--ifconfig.c437
-rw-r--r--interface.c2080
-rw-r--r--networking/ifconfig.c437
4 files changed, 2482 insertions, 482 deletions
diff --git a/Config.h b/Config.h
index 3fd48314c..9b9eec65c 100644
--- a/Config.h
+++ b/Config.h
@@ -284,6 +284,8 @@
284// Support for Minix filesystem, version 2 284// Support for Minix filesystem, version 2
285//#define BB_FEATURE_MINIX2 285//#define BB_FEATURE_MINIX2
286// 286//
287// Enable ifconfig status reporting output -- this feature adds 12k.
288//#define BB_FEATURE_IFCONFIG_STATUS
287// 289//
288// Enable busybox --install [-s] 290// Enable busybox --install [-s]
289// to create links (or symlinks) for all the commands that are 291// to create links (or symlinks) for all the commands that are
@@ -393,6 +395,14 @@
393#endif 395#endif
394#endif 396#endif
395// 397//
398#if defined BB_IFCONFIG
399#ifdef BB_FEATURE_IFCONFIG_STATUS
400#define BB_INTERFACE
401#endif
402#else
403#undef BB_INTERFACE
404#endif
405//
396#if defined BB_FEATURE_AUTOWIDTH 406#if defined BB_FEATURE_AUTOWIDTH
397#ifndef BB_FEATURE_USE_TERMIOS 407#ifndef BB_FEATURE_USE_TERMIOS
398#define BB_FEATURE_USE_TERMIOS 408#define BB_FEATURE_USE_TERMIOS
diff --git a/ifconfig.c b/ifconfig.c
index a3e2c0fdb..2a50a9605 100644
--- a/ifconfig.c
+++ b/ifconfig.c
@@ -15,16 +15,19 @@
15 * Foundation; either version 2 of the License, or (at 15 * Foundation; either version 2 of the License, or (at
16 * your option) any later version. 16 * your option) any later version.
17 * 17 *
18 * $Id: ifconfig.c,v 1.3 2001/02/20 06:14:07 andersen Exp $ 18 * $Id: ifconfig.c,v 1.4 2001/03/06 00:48:59 andersen Exp $
19 *
20 * Majorly hacked up by Larry Doolittle <ldoolitt@recycle.lbl.gov>
19 * 21 *
20 */ 22 */
21 23
24#include "busybox.h"
25#include <sys/types.h>
22#include <stdio.h> 26#include <stdio.h>
23#include <stdlib.h> 27#include <stdlib.h>
24#include <errno.h> 28#include <errno.h>
25#include <string.h> // strcmp and friends 29#include <string.h> // strcmp and friends
26#include <ctype.h> // isdigit and friends 30#include <ctype.h> // isdigit and friends
27#include <sys/types.h>
28#include <sys/socket.h> 31#include <sys/socket.h>
29#include <sys/ioctl.h> 32#include <sys/ioctl.h>
30#include <netinet/in.h> 33#include <netinet/in.h>
@@ -32,10 +35,50 @@
32#include <net/if.h> 35#include <net/if.h>
33#include <net/if_arp.h> 36#include <net/if_arp.h>
34#include <linux/if_ether.h> 37#include <linux/if_ether.h>
35#include "busybox.h"
36 38
37static int sockfd; /* socket fd we use to manipulate stuff with */ 39static int sockfd; /* socket fd we use to manipulate stuff with */
38 40
41#define TESTME 0
42#if TESTME
43#define ioctl test_ioctl
44char *saddr_to_a(struct sockaddr *s)
45{
46 if (s->sa_family == ARPHRD_ETHER) {
47 static char hw[18];
48 sprintf(hw, "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x",
49 s->sa_data[0], s->sa_data[1], s->sa_data[2],
50 s->sa_data[3], s->sa_data[4], s->sa_data[5]);
51 return hw;
52 } else if (s->sa_family == AF_INET) {
53 struct sockaddr_in *ss = (struct sockaddr_in *) s;
54 return inet_ntoa(ss->sin_addr);
55 } else {
56 return NULL;
57 }
58}
59
60int test_ioctl(int __fd, unsigned long int __request, void *param)
61{
62 struct ifreq *i=(struct ifreq *)param;
63 printf("ioctl fd=%d, request=%ld\n", __fd, __request);
64
65 switch(__request) {
66 case SIOCGIFFLAGS: printf(" SIOCGIFFLAGS\n"); i->ifr_flags = 0; break;
67 case SIOCSIFFLAGS: printf(" SIOCSIFFLAGS, %x\n", i->ifr_flags); break;
68 case SIOCSIFMETRIC: printf(" SIOCSIFMETRIC, %d\n", i->ifr_metric); break;
69 case SIOCSIFMTU: printf(" SIOCSIFMTU, %d\n", i->ifr_mtu); break;
70 case SIOCSIFBRDADDR: printf(" SIOCSIFBRDADDR, %s\n", saddr_to_a(&(i->ifr_broadaddr))); break;
71 case SIOCSIFDSTADDR: printf(" SIOCSIFDSTADDR, %s\n", saddr_to_a(&(i->ifr_dstaddr ))); break;
72 case SIOCSIFNETMASK: printf(" SIOCSIFNETMASK, %s\n", saddr_to_a(&(i->ifr_netmask ))); break;
73 case SIOCSIFADDR: printf(" SIOCSIFADDR, %s\n", saddr_to_a(&(i->ifr_addr ))); break;
74 case SIOCSIFHWADDR: printf(" SIOCSIFHWADDR, %s\n", saddr_to_a(&(i->ifr_hwaddr ))); break; /* broken */
75 default:
76 }
77 return 0;
78}
79#endif
80
81
39/* print usage and exit */ 82/* print usage and exit */
40 83
41#define _(x) x 84#define _(x) x
@@ -49,7 +92,7 @@ set_flag(char *ifname, short flag)
49 strcpy(ifr.ifr_name, ifname); 92 strcpy(ifr.ifr_name, ifname);
50 if (ioctl(sockfd, SIOCGIFFLAGS, &ifr) < 0) { 93 if (ioctl(sockfd, SIOCGIFFLAGS, &ifr) < 0) {
51 perror("SIOCGIFFLAGS"); 94 perror("SIOCGIFFLAGS");
52 return (-1); 95 return -1;
53 } 96 }
54 strcpy(ifr.ifr_name, ifname); 97 strcpy(ifr.ifr_name, ifname);
55 ifr.ifr_flags |= flag; 98 ifr.ifr_flags |= flag;
@@ -57,7 +100,7 @@ set_flag(char *ifname, short flag)
57 perror("SIOCSIFFLAGS"); 100 perror("SIOCSIFFLAGS");
58 return -1; 101 return -1;
59 } 102 }
60 return (0); 103 return 0;
61} 104}
62 105
63 106
@@ -78,9 +121,62 @@ clr_flag(char *ifname, short flag)
78 perror("SIOCSIFFLAGS"); 121 perror("SIOCSIFFLAGS");
79 return -1; 122 return -1;
80 } 123 }
81 return (0); 124 return 0;
82} 125}
83 126
127/* which element in struct ifreq to frob */
128enum frob {
129 L_METRIC,
130 L_MTU,
131 L_DATA,
132 L_BROAD,
133 L_DEST,
134 L_MASK,
135 L_HWAD,
136};
137
138
139struct flag_map {
140 char *name;
141 enum frob frob;
142 int flag;
143 int sflag;
144 int action;
145};
146
147/* action:
148 * 2 set
149 * 4 clear
150 * 6 set/clear
151 * 8 clear/set
152 * 10 numeric
153 * 12 address
154 * 14 address/clear
155 */
156const static struct flag_map flag_table[] = {
157 {"arp", 0, IFF_NOARP, 0, 6},
158 {"trailers", 0, IFF_NOTRAILERS, 0, 6},
159 {"promisc", 0, IFF_PROMISC, 0, 8},
160 {"multicast", 0, IFF_MULTICAST, 0, 8},
161 {"allmulti", 0, IFF_ALLMULTI, 0, 8},
162 {"up", 0, (IFF_UP | IFF_RUNNING), 0, 2},
163 {"down", 0, IFF_UP, 0, 4},
164 {"metric", L_METRIC, 0, SIOCSIFMETRIC, 10},
165 {"mtu", L_MTU, 0, SIOCSIFMTU, 10},
166#ifdef SIOCSKEEPALIVE
167 {"keepalive", L_DATA, 0, SIOCSKEEPALIVE, 10},
168#endif
169#ifdef SIOCSOUTFILL
170 {"outfill", L_DATA, 0, SIOCSOUTFILL, 10},
171#endif
172 {"broadcast", L_BROAD, IFF_BROADCAST, SIOCSIFBRDADDR, 14},
173 {"dstaddr", L_DEST, 0, SIOCSIFDSTADDR, 12},
174 {"netmask", L_MASK, 0, SIOCSIFNETMASK, 12},
175 {"pointopoint", L_DEST, IFF_POINTOPOINT, SIOCSIFDSTADDR, 14},
176 {"hw", L_HWAD, 0, SIOCSIFHWADDR, 14},
177};
178
179
84/* resolve XXX.YYY.ZZZ.QQQ -> binary */ 180/* resolve XXX.YYY.ZZZ.QQQ -> binary */
85 181
86static int 182static int
@@ -90,15 +186,16 @@ INET_resolve(char *name, struct sockaddr_in *sin)
90 sin->sin_port = 0; 186 sin->sin_port = 0;
91 187
92 /* Default is special, meaning 0.0.0.0. */ 188 /* Default is special, meaning 0.0.0.0. */
93 if (!strcmp(name, "default")) { 189 if (strcmp(name, "default")==0) {
94 sin->sin_addr.s_addr = INADDR_ANY; 190 sin->sin_addr.s_addr = INADDR_ANY;
95 return (1); 191 return 1;
96 } 192 }
97 /* Look to see if it's a dotted quad. */ 193 /* Look to see if it's a dotted quad. */
98 if (inet_aton(name, &sin->sin_addr)) { 194 if (inet_aton(name, &sin->sin_addr)) {
99 return 0; 195 return 0;
100 } 196 }
101 /* guess not.. */ 197 /* guess not.. */
198 errno = EINVAL;
102 return -1; 199 return -1;
103} 200}
104 201
@@ -127,12 +224,12 @@ in_ether(char *bufp, struct sockaddr *sap)
127 val = c - 'A' + 10; 224 val = c - 'A' + 10;
128 else { 225 else {
129#ifdef DEBUG 226#ifdef DEBUG
130 fprintf(stderr, 227 error_msg(
131 _("in_ether(%s): invalid ether address!\n"), 228 _("in_ether(%s): invalid ether address!"),
132 orig); 229 orig);
133#endif 230#endif
134 errno = EINVAL; 231 errno = EINVAL;
135 return (-1); 232 return -1;
136 } 233 }
137 val <<= 4; 234 val <<= 4;
138 c = *bufp; 235 c = *bufp;
@@ -146,22 +243,19 @@ in_ether(char *bufp, struct sockaddr *sap)
146 val >>= 4; 243 val >>= 4;
147 else { 244 else {
148#ifdef DEBUG 245#ifdef DEBUG
149 fprintf(stderr, 246 error_msg(
150 _("in_ether(%s): invalid ether address!\n"), 247 _("in_ether(%s): invalid ether address!"),
151 orig); 248 orig);
152#endif 249#endif
153 errno = EINVAL; 250 errno = EINVAL;
154 return (-1); 251 return -1;
155 } 252 }
156 if (c != 0) 253 if (c != 0)
157 bufp++; 254 bufp++;
158 *ptr++ = (unsigned char) (val & 0377); 255 *ptr++ = (unsigned char) (val & 0377);
159 i++; 256 i++;
160 257
161 /* We might get a semicolon here - not required. */ 258 /* optional colon already handled, don't swallow a second */
162 if (*bufp == ':')
163 bufp++;
164
165 } 259 }
166 260
167 if(i != ETH_ALEN) { 261 if(i != ETH_ALEN) {
@@ -171,25 +265,37 @@ in_ether(char *bufp, struct sockaddr *sap)
171 265
172 return 0; 266 return 0;
173} 267}
268
269#ifdef BB_FEATURE_IFCONFIG_STATUS
270extern int display_interfaces(void);
271#else
272int display_interfaces(void)
273{
274 show_usage();
275}
276#endif
174 277
175int ifconfig_main(int argc, char **argv) 278int ifconfig_main(int argc, char **argv)
176{ 279{
177 struct ifreq ifr; 280 struct ifreq ifr;
178 struct sockaddr_in sa; 281 struct sockaddr_in sa;
179 struct sockaddr sa2; 282 char **spp, *cmd;
180 char **spp;
181 int goterr = 0; 283 int goterr = 0;
182 int r, didnetmask = 0; 284 int r;
285 /* int didnetmask = 0; special case input error detection no longer implemented */
183 char host[128]; 286 char host[128];
287 const struct flag_map *ft;
288 int i, sense;
289 int a, ecode;
290 struct sockaddr *d;
184 291
185 if(argc < 2) { 292 if(argc < 2) {
186 show_usage(); 293 return(display_interfaces());
187 } 294 }
188 295
189 /* Create a channel to the NET kernel. */ 296 /* Create a channel to the NET kernel. */
190 if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { 297 if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
191 perror("socket"); 298 perror_msg_and_die("socket");
192 exit(1);
193 } 299 }
194 300
195 /* skip argv[0] */ 301 /* skip argv[0] */
@@ -205,235 +311,84 @@ int ifconfig_main(int argc, char **argv)
205 311
206 /* Process the remaining arguments. */ 312 /* Process the remaining arguments. */
207 while (*spp != (char *) NULL) { 313 while (*spp != (char *) NULL) {
208 if (!strcmp(*spp, "arp")) { 314 cmd = *spp;
209 goterr |= clr_flag(ifr.ifr_name, IFF_NOARP); 315 sense=0;
210 spp++; 316 if (*cmd=='-') {
211 continue; 317 sense=1;
212 } 318 cmd++;
213 if (!strcmp(*spp, "-arp")) {
214 goterr |= set_flag(ifr.ifr_name, IFF_NOARP);
215 spp++;
216 continue;
217 }
218
219 if (!strcmp(*spp, "trailers")) {
220 goterr |= clr_flag(ifr.ifr_name, IFF_NOTRAILERS);
221 spp++;
222 continue;
223 }
224 if (!strcmp(*spp, "-trailers")) {
225 goterr |= set_flag(ifr.ifr_name, IFF_NOTRAILERS);
226 spp++;
227 continue;
228 }
229 if (!strcmp(*spp, "promisc")) {
230 goterr |= set_flag(ifr.ifr_name, IFF_PROMISC);
231 spp++;
232 continue;
233 }
234 if (!strcmp(*spp, "-promisc")) {
235 goterr |= clr_flag(ifr.ifr_name, IFF_PROMISC);
236 spp++;
237 continue;
238 }
239 if (!strcmp(*spp, "multicast")) {
240 goterr |= set_flag(ifr.ifr_name, IFF_MULTICAST);
241 spp++;
242 continue;
243 }
244 if (!strcmp(*spp, "-multicast")) {
245 goterr |= clr_flag(ifr.ifr_name, IFF_MULTICAST);
246 spp++;
247 continue;
248 }
249 if (!strcmp(*spp, "allmulti")) {
250 goterr |= set_flag(ifr.ifr_name, IFF_ALLMULTI);
251 spp++;
252 continue;
253 }
254 if (!strcmp(*spp, "-allmulti")) {
255 goterr |= clr_flag(ifr.ifr_name, IFF_ALLMULTI);
256 spp++;
257 continue;
258 }
259 if (!strcmp(*spp, "up")) {
260 goterr |= set_flag(ifr.ifr_name, (IFF_UP | IFF_RUNNING));
261 spp++;
262 continue;
263 }
264 if (!strcmp(*spp, "down")) {
265 goterr |= clr_flag(ifr.ifr_name, IFF_UP);
266 spp++;
267 continue;
268 }
269
270 if (!strcmp(*spp, "metric")) {
271 if (*++spp == NULL)
272 show_usage();
273 ifr.ifr_metric = atoi(*spp);
274 if (ioctl(sockfd, SIOCSIFMETRIC, &ifr) < 0) {
275 fprintf(stderr, "SIOCSIFMETRIC: %s\n", strerror(errno));
276 goterr++;
277 }
278 spp++;
279 continue;
280 }
281 if (!strcmp(*spp, "mtu")) {
282 if (*++spp == NULL)
283 show_usage();
284 ifr.ifr_mtu = atoi(*spp);
285 if (ioctl(sockfd, SIOCSIFMTU, &ifr) < 0) {
286 fprintf(stderr, "SIOCSIFMTU: %s\n", strerror(errno));
287 goterr++;
288 }
289 spp++;
290 continue;
291 } 319 }
292#ifdef SIOCSKEEPALIVE 320 ft = NULL;
293 if (!strcmp(*spp, "keepalive")) { 321 for (i=0; i<(sizeof(flag_table)/sizeof(struct flag_map)); i++) {
294 if (*++spp == NULL) 322 if (strcmp(cmd, flag_table[i].name)==0) {
295 show_usage(); 323 ft=flag_table+i;
296 ifr.ifr_data = (caddr_t) atoi(*spp); 324 spp++;
297 if (ioctl(sockfd, SIOCSKEEPALIVE, &ifr) < 0) { 325 break;
298 fprintf(stderr, "SIOCSKEEPALIVE: %s\n", strerror(errno));
299 goterr++;
300 }
301 spp++;
302 continue;
303 }
304#endif
305
306#ifdef SIOCSOUTFILL
307 if (!strcmp(*spp, "outfill")) {
308 if (*++spp == NULL)
309 show_usage();
310 ifr.ifr_data = (caddr_t) atoi(*spp);
311 if (ioctl(sockfd, SIOCSOUTFILL, &ifr) < 0) {
312 fprintf(stderr, "SIOCSOUTFILL: %s\n", strerror(errno));
313 goterr++;
314 } 326 }
315 spp++;
316 continue;
317 } 327 }
318#endif 328 if (ft) {
329 switch (ft->action+sense) {
330 case 4:
331 case 7:
332 case 8:
333 case 15:
334 goterr |= clr_flag(ifr.ifr_name, ft->flag);
335 break;
336 case 2:
337 case 6:
338 case 9:
339 goterr |= set_flag(ifr.ifr_name, ft->flag);
340 break;
341 case 10:
342 if (*spp == NULL)
343 show_usage();
344 a = atoi(*spp++);
345 switch (ft->frob) {
346 case L_METRIC: ifr.ifr_metric = a; break;
347 case L_MTU: ifr.ifr_mtu = a; break;
348 case L_DATA: ifr.ifr_data = (caddr_t) a; break;
349 default: error_msg_and_die("bugaboo");
350 }
319 351
320 if (!strcmp(*spp, "-broadcast")) { 352 if (ioctl(sockfd, ft->sflag, &ifr) < 0) {
321 goterr |= clr_flag(ifr.ifr_name, IFF_BROADCAST); 353 perror(ft->name); /* imperfect */
322 spp++;
323 continue;
324 }
325 if (!strcmp(*spp, "broadcast")) {
326 if (*++spp != NULL) {
327 safe_strncpy(host, *spp, (sizeof host));
328 if (INET_resolve(host, &sa) < 0) {
329 goterr++; 354 goterr++;
330 spp++;
331 continue;
332 } 355 }
333 memcpy((char *) &ifr.ifr_broadaddr, 356 break;
334 (char *) &sa, 357 case 12:
335 sizeof(struct sockaddr)); 358 case 14:
336 if (ioctl(sockfd, SIOCSIFBRDADDR, &ifr) < 0) { 359 if (ft->action+sense==10 && *spp == NULL) {
337 perror("SIOCSIFBRDADDR"); 360 show_usage();
338 goterr++; 361 break;
339 } 362 }
340 spp++; 363 if (*spp != NULL) {
341 } 364 safe_strncpy(host, *spp, (sizeof host));
342 goterr |= set_flag(ifr.ifr_name, IFF_BROADCAST);
343 continue;
344 }
345 if (!strcmp(*spp, "dstaddr")) {
346 if (*++spp == NULL)
347 show_usage();
348 safe_strncpy(host, *spp, (sizeof host));
349 if (INET_resolve(host, &sa) < 0) {
350 goterr++;
351 spp++;
352 continue;
353 }
354 memcpy((char *) &ifr.ifr_dstaddr, (char *) &sa,
355 sizeof(struct sockaddr));
356 if (ioctl(sockfd, SIOCSIFDSTADDR, &ifr) < 0) {
357 fprintf(stderr, "SIOCSIFDSTADDR: %s\n",
358 strerror(errno));
359 goterr++;
360 }
361 spp++;
362 continue;
363 }
364 if (!strcmp(*spp, "netmask")) {
365 if (*++spp == NULL || didnetmask)
366 show_usage();
367 safe_strncpy(host, *spp, (sizeof host));
368 if (INET_resolve(host, &sa) < 0) {
369 goterr++;
370 spp++;
371 continue;
372 }
373 didnetmask++;
374 memcpy((char *) &ifr.ifr_netmask, (char *) &sa,
375 sizeof(struct sockaddr));
376 if (ioctl(sockfd, SIOCSIFNETMASK, &ifr) < 0) {
377 perror("SIOCSIFNETMASK");
378 goterr++;
379 }
380 spp++;
381 continue;
382 }
383
384 if (!strcmp(*spp, "-pointopoint")) {
385 goterr |= clr_flag(ifr.ifr_name, IFF_POINTOPOINT);
386 spp++;
387 continue;
388 }
389 if (!strcmp(*spp, "pointopoint")) {
390 if (*(spp + 1) != NULL) {
391 spp++;
392 safe_strncpy(host, *spp, (sizeof host));
393 if (INET_resolve(host, &sa)) {
394 goterr++;
395 spp++; 365 spp++;
396 continue; 366 if (ft->frob == L_HWAD) {
367 ecode = in_ether(host, &ifr.ifr_hwaddr);
368 } else {
369 switch (ft->frob) {
370 case L_BROAD: d = &ifr.ifr_broadaddr; break;
371 case L_DEST: d = &ifr.ifr_dstaddr; break;
372 case L_MASK: d = &ifr.ifr_netmask; break;
373 default: error_msg_and_die("bugaboo");
374 }
375 ecode = INET_resolve(host, (struct sockaddr_in *) d);
376 }
377 if (ecode < 0 || ioctl(sockfd, ft->sflag, &ifr) < 0) {
378 perror(ft->name); /* imperfect */
379 goterr++;
380 }
397 } 381 }
398 memcpy((char *) &ifr.ifr_dstaddr, (char *) &sa, 382 if (ft->flag != 0) {
399 sizeof(struct sockaddr)); 383 goterr |= set_flag(ifr.ifr_name, ft->flag);
400 if (ioctl(sockfd, SIOCSIFDSTADDR, &ifr) < 0) {
401 perror("SIOCSIFDSTADDR");
402 goterr++;
403 } 384 }
404 } 385 break;
405 goterr |= set_flag(ifr.ifr_name, IFF_POINTOPOINT); 386 default:
406 spp++;
407 continue;
408 };
409
410 if (!strcmp(*spp, "hw")) {
411 if (*++spp == NULL || strcmp("ether", *spp)) {
412 show_usage(); 387 show_usage();
413 } 388 } /* end of switch */
414
415 if (*++spp == NULL) {
416 /* silently ignore it if no address */
417 continue;
418 }
419
420 safe_strncpy(host, *spp, (sizeof host));
421 if (in_ether(host, &sa2) < 0) {
422 fprintf(stderr, "invalid hw-addr %s\n", host);
423 goterr++;
424 spp++;
425 continue;
426 }
427 memcpy((char *) &ifr.ifr_hwaddr, (char *) &sa2,
428 sizeof(struct sockaddr));
429 if (ioctl(sockfd, SIOCSIFHWADDR, &ifr) < 0) {
430 perror("SIOCSIFHWADDR");
431 goterr++;
432 }
433 spp++;
434 continue; 389 continue;
435 } 390 }
436 391
437 /* If the next argument is a valid hostname, assume OK. */ 392 /* If the next argument is a valid hostname, assume OK. */
438 safe_strncpy(host, *spp, (sizeof host)); 393 safe_strncpy(host, *spp, (sizeof host));
439 394
@@ -471,6 +426,6 @@ int ifconfig_main(int argc, char **argv)
471 426
472 } /* end of while-loop */ 427 } /* end of while-loop */
473 428
474 exit(0); 429 return goterr;
475} 430}
476 431
diff --git a/interface.c b/interface.c
new file mode 100644
index 000000000..05019e5eb
--- /dev/null
+++ b/interface.c
@@ -0,0 +1,2080 @@
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 2001/03/06 00:48:59 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#include "busybox.h"
30
31/*
32 *
33 * Protocol Families.
34 *
35 */
36#define HAVE_AFINET 1
37#undef HAVE_AFINET6
38#undef HAVE_AFIPX
39#undef HAVE_AFATALK
40#undef HAVE_AFNETROM
41#undef HAVE_AFX25
42#undef HAVE_AFECONET
43
44/*
45 *
46 * Device Hardware types.
47 *
48 */
49#define HAVE_HWETHER 1
50#define HAVE_HWPPP 1
51#undef HAVE_HWSLIP
52
53
54#include <features.h>
55#include <sys/types.h>
56#include <sys/socket.h>
57#include <sys/ioctl.h>
58#include <netinet/in.h>
59#include <net/if.h>
60#include <net/if_arp.h>
61#include <stdio.h>
62#include <errno.h>
63#include <fcntl.h>
64#include <ctype.h>
65#include <stdlib.h>
66#include <string.h>
67#include <unistd.h>
68#include <netdb.h>
69#include <netinet/in.h>
70#include <arpa/inet.h>
71#include <arpa/nameser.h>
72
73#define _(x) x
74#define _PATH_PROCNET_DEV "/proc/net/dev"
75#define new(p) ((p) = xcalloc(1,sizeof(*(p))))
76#define xmalloc malloc
77#define xcalloc calloc
78#define xrealloc realloc
79#define KRELEASE(maj,min,patch) ((maj) * 10000 + (min)*1000 + (patch))
80
81int procnetdev_vsn = 1;
82
83
84/* Ugh. But libc5 doesn't provide POSIX types. */
85#include <asm/types.h>
86
87
88#ifdef HAVE_HWSLIP
89#include <linux/if_slip.h>
90#endif
91
92#if HAVE_AFINET6
93
94#ifndef _LINUX_IN6_H
95/*
96 * This is in linux/include/net/ipv6.h.
97 */
98
99struct in6_ifreq {
100 struct in6_addr ifr6_addr;
101 __u32 ifr6_prefixlen;
102 unsigned int ifr6_ifindex;
103};
104
105#endif
106
107#endif /* HAVE_AFINET6 */
108
109#if HAVE_AFIPX
110#if (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1)
111#include <netipx/ipx.h>
112#else
113#include "ipx.h"
114#endif
115#endif
116#if 0
117#include "net-support.h"
118#include "pathnames.h"
119#include "version.h"
120#include "../intl.h"
121#include "interface.h"
122#include "sockets.h"
123#include "util.h"
124#endif
125
126/* This structure defines protocol families and their handlers. */
127struct aftype {
128 char *name;
129 char *title;
130 int af;
131 int alen;
132 char *(*print) (unsigned char *);
133 char *(*sprint) (struct sockaddr *, int numeric);
134 int (*input) (int type, char *bufp, struct sockaddr *);
135 void (*herror) (char *text);
136 int (*rprint) (int options);
137 int (*rinput) (int typ, int ext, char **argv);
138
139 /* may modify src */
140 int (*getmask) (char *src, struct sockaddr * mask, char *name);
141
142 int fd;
143 char *flag_file;
144};
145
146extern struct aftype *aftypes[];
147int flag_unx;
148int flag_ipx;
149int flag_ax25;
150int flag_ddp;
151int flag_netrom;
152int flag_inet;
153int flag_inet6;
154int flag_econet;
155int flag_x25 = 0;
156int flag_ash;
157
158
159struct aftrans_t {
160 char *alias;
161 char *name;
162 int *flag;
163} aftrans[] = {
164
165 {
166 "ax25", "ax25", &flag_ax25
167 },
168 {
169 "ip", "inet", &flag_inet
170 },
171 {
172 "ip6", "inet6", &flag_inet6
173 },
174 {
175 "ipx", "ipx", &flag_ipx
176 },
177 {
178 "appletalk", "ddp", &flag_ddp
179 },
180 {
181 "netrom", "netrom", &flag_netrom
182 },
183 {
184 "inet", "inet", &flag_inet
185 },
186 {
187 "inet6", "inet6", &flag_inet6
188 },
189 {
190 "ddp", "ddp", &flag_ddp
191 },
192 {
193 "unix", "unix", &flag_unx
194 },
195 {
196 "tcpip", "inet", &flag_inet
197 },
198 {
199 "econet", "ec", &flag_econet
200 },
201 {
202 "x25", "x25", &flag_x25
203 },
204 {
205 "ash", "ash", &flag_ash
206 },
207 {
208 0, 0, 0
209 }
210};
211
212char afname[256] = "";
213
214#if HAVE_AFUNIX
215
216/* Display a UNIX domain address. */
217static char *UNIX_print(unsigned char *ptr)
218{
219 return (ptr);
220}
221
222
223/* Display a UNIX domain address. */
224static char *UNIX_sprint(struct sockaddr *sap, int numeric)
225{
226 static char buf[64];
227
228 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
229 return safe_strncpy(buf, _("[NONE SET]"), sizeof(buf));
230 return (UNIX_print(sap->sa_data));
231}
232
233
234struct aftype unix_aftype =
235{
236 "unix", NULL, /*"UNIX Domain", */ AF_UNIX, 0,
237 UNIX_print, UNIX_sprint, NULL, NULL,
238 NULL, NULL, NULL,
239 -1,
240 "/proc/net/unix"
241};
242#endif /* HAVE_AFUNIX */
243
244#if HAVE_AFINET
245
246extern int h_errno; /* some netdb.h versions don't export this */
247
248/* cache */
249struct addr {
250 struct sockaddr_in addr;
251 char *name;
252 int host;
253 struct addr *next;
254};
255
256static struct addr *INET_nn = NULL; /* addr-to-name cache */
257
258static int INET_resolve(char *name, struct sockaddr_in *sin, int hostfirst)
259{
260 struct hostent *hp;
261 struct netent *np;
262
263 /* Grmpf. -FvK */
264 sin->sin_family = AF_INET;
265 sin->sin_port = 0;
266
267 /* Default is special, meaning 0.0.0.0. */
268 if (!strcmp(name, "default")) {
269 sin->sin_addr.s_addr = INADDR_ANY;
270 return (1);
271 }
272 /* Look to see if it's a dotted quad. */
273 if (inet_aton(name, &sin->sin_addr)) {
274 return 0;
275 }
276 /* If we expect this to be a hostname, try hostname database first */
277#ifdef DEBUG
278 if (hostfirst) fprintf (stderr, "gethostbyname (%s)\n", name);
279#endif
280 if (hostfirst &&
281 (hp = gethostbyname(name)) != (struct hostent *) NULL) {
282 memcpy((char *) &sin->sin_addr, (char *) hp->h_addr_list[0],
283 sizeof(struct in_addr));
284 return 0;
285 }
286 /* Try the NETWORKS database to see if this is a known network. */
287#ifdef DEBUG
288 fprintf (stderr, "getnetbyname (%s)\n", name);
289#endif
290 if ((np = getnetbyname(name)) != (struct netent *) NULL) {
291 sin->sin_addr.s_addr = htonl(np->n_net);
292 return 1;
293 }
294 if (hostfirst) {
295 /* Don't try again */
296 errno = h_errno;
297 return -1;
298 }
299#ifdef DEBUG
300 res_init();
301 _res.options |= RES_DEBUG;
302#endif
303
304#ifdef DEBUG
305 fprintf (stderr, "gethostbyname (%s)\n", name);
306#endif
307 if ((hp = gethostbyname(name)) == (struct hostent *) NULL) {
308 errno = h_errno;
309 return -1;
310 }
311 memcpy((char *) &sin->sin_addr, (char *) hp->h_addr_list[0],
312 sizeof(struct in_addr));
313
314 return 0;
315}
316
317
318/* numeric: & 0x8000: default instead of *,
319 * & 0x4000: host instead of net,
320 * & 0x0fff: don't resolve
321 */
322static int INET_rresolve(char *name, size_t len, struct sockaddr_in *sin,
323 int numeric, unsigned int netmask)
324{
325 struct hostent *ent;
326 struct netent *np;
327 struct addr *pn;
328 unsigned long ad, host_ad;
329 int host = 0;
330
331 /* Grmpf. -FvK */
332 if (sin->sin_family != AF_INET) {
333#ifdef DEBUG
334 fprintf(stderr, _("rresolve: unsupport address family %d !\n"), sin->sin_family);
335#endif
336 errno = EAFNOSUPPORT;
337 return (-1);
338 }
339 ad = (unsigned long) sin->sin_addr.s_addr;
340#ifdef DEBUG
341 fprintf (stderr, "rresolve: %08lx, mask %08x, num %08x \n", ad, netmask, numeric);
342#endif
343 if (ad == INADDR_ANY) {
344 if ((numeric & 0x0FFF) == 0) {
345 if (numeric & 0x8000)
346 safe_strncpy(name, "default", len);
347 else
348 safe_strncpy(name, "*", len);
349 return (0);
350 }
351 }
352 if (numeric & 0x0FFF) {
353 safe_strncpy(name, inet_ntoa(sin->sin_addr), len);
354 return (0);
355 }
356
357 if ((ad & (~netmask)) != 0 || (numeric & 0x4000))
358 host = 1;
359#if 0
360 INET_nn = NULL;
361#endif
362 pn = INET_nn;
363 while (pn != NULL) {
364 if (pn->addr.sin_addr.s_addr == ad && pn->host == host) {
365 safe_strncpy(name, pn->name, len);
366#ifdef DEBUG
367 fprintf (stderr, "rresolve: found %s %08lx in cache\n", (host? "host": "net"), ad);
368#endif
369 return (0);
370 }
371 pn = pn->next;
372 }
373
374 host_ad = ntohl(ad);
375 np = NULL;
376 ent = NULL;
377 if (host) {
378#ifdef DEBUG
379 fprintf (stderr, "gethostbyaddr (%08lx)\n", ad);
380#endif
381 ent = gethostbyaddr((char *) &ad, 4, AF_INET);
382 if (ent != NULL)
383 safe_strncpy(name, ent->h_name, len);
384 } else {
385#ifdef DEBUG
386 fprintf (stderr, "getnetbyaddr (%08lx)\n", host_ad);
387#endif
388 np = getnetbyaddr(host_ad, AF_INET);
389 if (np != NULL)
390 safe_strncpy(name, np->n_name, len);
391 }
392 if ((ent == NULL) && (np == NULL))
393 safe_strncpy(name, inet_ntoa(sin->sin_addr), len);
394 pn = (struct addr *) malloc(sizeof(struct addr));
395 pn->addr = *sin;
396 pn->next = INET_nn;
397 pn->host = host;
398 pn->name = (char *) malloc(strlen(name) + 1);
399 strcpy(pn->name, name);
400 INET_nn = pn;
401
402 return (0);
403}
404
405
406static void INET_reserror(char *text)
407{
408 herror(text);
409}
410
411
412/* Display an Internet socket address. */
413static char *INET_print(unsigned char *ptr)
414{
415 return (inet_ntoa((*(struct in_addr *) ptr)));
416}
417
418
419/* Display an Internet socket address. */
420static char *INET_sprint(struct sockaddr *sap, int numeric)
421{
422 static char buff[128];
423
424 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
425 return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff));
426
427 if (INET_rresolve(buff, sizeof(buff), (struct sockaddr_in *) sap,
428 numeric, 0xffffff00) != 0)
429 return (NULL);
430
431 return (buff);
432}
433
434char *INET_sprintmask(struct sockaddr *sap, int numeric,
435 unsigned int netmask)
436{
437 static char buff[128];
438
439 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
440 return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff));
441 if (INET_rresolve(buff, sizeof(buff), (struct sockaddr_in *) sap,
442 numeric, netmask) != 0)
443 return (NULL);
444 return (buff);
445}
446
447
448static int INET_getsock(char *bufp, struct sockaddr *sap)
449{
450 char *sp = bufp, *bp;
451 unsigned int i;
452 unsigned val;
453 struct sockaddr_in *sin;
454
455 sin = (struct sockaddr_in *) sap;
456 sin->sin_family = AF_INET;
457 sin->sin_port = 0;
458
459 val = 0;
460 bp = (char *) &val;
461 for (i = 0; i < sizeof(sin->sin_addr.s_addr); i++) {
462 *sp = toupper(*sp);
463
464 if ((*sp >= 'A') && (*sp <= 'F'))
465 bp[i] |= (int) (*sp - 'A') + 10;
466 else if ((*sp >= '0') && (*sp <= '9'))
467 bp[i] |= (int) (*sp - '0');
468 else
469 return (-1);
470
471 bp[i] <<= 4;
472 sp++;
473 *sp = toupper(*sp);
474
475 if ((*sp >= 'A') && (*sp <= 'F'))
476 bp[i] |= (int) (*sp - 'A') + 10;
477 else if ((*sp >= '0') && (*sp <= '9'))
478 bp[i] |= (int) (*sp - '0');
479 else
480 return (-1);
481
482 sp++;
483 }
484 sin->sin_addr.s_addr = htonl(val);
485
486 return (sp - bufp);
487}
488
489static int INET_input(int type, char *bufp, struct sockaddr *sap)
490{
491 switch (type) {
492 case 1:
493 return (INET_getsock(bufp, sap));
494 case 256:
495 return (INET_resolve(bufp, (struct sockaddr_in *) sap, 1));
496 default:
497 return (INET_resolve(bufp, (struct sockaddr_in *) sap, 0));
498 }
499}
500
501static int INET_getnetmask(char *adr, struct sockaddr *m, char *name)
502{
503 struct sockaddr_in *mask = (struct sockaddr_in *) m;
504 char *slash, *end;
505 int prefix;
506
507 if ((slash = strchr(adr, '/')) == NULL)
508 return 0;
509
510 *slash++ = '\0';
511 prefix = strtoul(slash, &end, 0);
512 if (*end != '\0')
513 return -1;
514
515 if (name) {
516 sprintf(name, "/%d", prefix);
517 }
518 mask->sin_family = AF_INET;
519 mask->sin_addr.s_addr = htonl(~(0xffffffffU >> prefix));
520 return 1;
521}
522
523
524struct aftype inet_aftype =
525{
526 "inet", NULL, /*"DARPA Internet", */ AF_INET, sizeof(unsigned long),
527 INET_print, INET_sprint, INET_input, INET_reserror,
528 NULL /*INET_rprint */ , NULL /*INET_rinput */ ,
529 INET_getnetmask,
530 -1,
531 NULL
532};
533
534#endif /* HAVE_AFINET */
535
536/* Display an UNSPEC address. */
537static char *UNSPEC_print(unsigned char *ptr)
538{
539 static char buff[64];
540 char *pos;
541 unsigned int i;
542
543 pos = buff;
544 for (i = 0; i < sizeof(struct sockaddr); i++) {
545 pos += sprintf(pos, "%02X-", (*ptr++ & 0377));
546 }
547 buff[strlen(buff) - 1] = '\0';
548 return (buff);
549}
550
551/* Display an UNSPEC socket address. */
552static char *UNSPEC_sprint(struct sockaddr *sap, int numeric)
553{
554 static char buf[64];
555
556 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
557 return safe_strncpy(buf, _("[NONE SET]"), sizeof(buf));
558 return (UNSPEC_print(sap->sa_data));
559}
560
561struct aftype unspec_aftype =
562{
563 "unspec", NULL, /*"UNSPEC", */ AF_UNSPEC, 0,
564 UNSPEC_print, UNSPEC_sprint, NULL, NULL,
565 NULL,
566};
567
568static short sVafinit = 0;
569
570struct aftype *aftypes[] =
571{
572#if HAVE_AFUNIX
573 &unix_aftype,
574#endif
575#if HAVE_AFINET
576 &inet_aftype,
577#endif
578#if HAVE_AFINET6
579 &inet6_aftype,
580#endif
581#if HAVE_AFAX25
582 &ax25_aftype,
583#endif
584#if HAVE_AFNETROM
585 &netrom_aftype,
586#endif
587#if HAVE_AFROSE
588 &rose_aftype,
589#endif
590#if HAVE_AFIPX
591 &ipx_aftype,
592#endif
593#if HAVE_AFATALK
594 &ddp_aftype,
595#endif
596#if HAVE_AFECONET
597 &ec_aftype,
598#endif
599#if HAVE_AFASH
600 &ash_aftype,
601#endif
602#if HAVE_AFX25
603 &x25_aftype,
604#endif
605 &unspec_aftype,
606 NULL
607};
608
609void afinit()
610{
611 unspec_aftype.title = _("UNSPEC");
612#if HAVE_AFUNIX
613 unix_aftype.title = _("UNIX Domain");
614#endif
615#if HAVE_AFINET
616 inet_aftype.title = _("DARPA Internet");
617#endif
618#if HAVE_AFINET6
619 inet6_aftype.title = _("IPv6");
620#endif
621#if HAVE_AFAX25
622 ax25_aftype.title = _("AMPR AX.25");
623#endif
624#if HAVE_AFNETROM
625 netrom_aftype.title = _("AMPR NET/ROM");
626#endif
627#if HAVE_AFIPX
628 ipx_aftype.title = _("Novell IPX");
629#endif
630#if HAVE_AFATALK
631 ddp_aftype.title = _("Appletalk DDP");
632#endif
633#if HAVE_AFECONET
634 ec_aftype.title = _("Econet");
635#endif
636#if HAVE_AFX25
637 x25_aftype.title = _("CCITT X.25");
638#endif
639#if HAVE_AFROSE
640 rose_aftype.title = _("AMPR ROSE");
641#endif
642#if HAVE_AFASH
643 ash_aftype.title = _("Ash");
644#endif
645 sVafinit = 1;
646}
647
648int aftrans_opt(const char *arg)
649{
650 struct aftrans_t *paft;
651 char *tmp1, *tmp2;
652 char buf[256];
653
654 safe_strncpy(buf, arg, sizeof(buf));
655
656 tmp1 = buf;
657
658 while (tmp1) {
659
660 tmp2 = index(tmp1, ',');
661
662 if (tmp2)
663 *(tmp2++) = '\0';
664
665 paft = aftrans;
666 for (paft = aftrans; paft->alias; paft++) {
667 if (strcmp(tmp1, paft->alias))
668 continue;
669 if (strlen(paft->name) + strlen(afname) + 1 >= sizeof(afname)) {
670 fprintf(stderr, _("Too much address family arguments.\n"));
671 return (0);
672 }
673 if (paft->flag)
674 (*paft->flag)++;
675 if (afname[0])
676 strcat(afname, ",");
677 strcat(afname, paft->name);
678 break;
679 }
680 if (!paft->alias) {
681 fprintf(stderr, _("Unknown address family `%s'.\n"), tmp1);
682 return (1);
683 }
684 tmp1 = tmp2;
685 }
686
687 return (0);
688}
689
690/* set the default AF list from the program name or a constant value */
691void aftrans_def(char *tool, char *argv0, char *dflt)
692{
693 char *tmp;
694 char *buf;
695
696 strcpy(afname, dflt);
697
698 if (!(tmp = strrchr(argv0, '/')))
699 tmp = argv0; /* no slash?! */
700 else
701 tmp++;
702
703 if (!(buf = strdup(tmp)))
704 return;
705
706 if (strlen(tool) >= strlen(tmp)) {
707 free(buf);
708 return;
709 }
710 tmp = buf + (strlen(tmp) - strlen(tool));
711
712 if (strcmp(tmp, tool) != 0) {
713 free(buf);
714 return;
715 }
716 *tmp = '\0';
717 if ((tmp = strchr(buf, '_')))
718 *tmp = '\0';
719
720 afname[0] = '\0';
721 if (aftrans_opt(buf))
722 strcpy(afname, buf);
723
724 free(buf);
725}
726
727
728/* Check our protocol family table for this family. */
729struct aftype *get_aftype(const char *name)
730{
731 struct aftype **afp;
732
733 if (!sVafinit)
734 afinit();
735
736 afp = aftypes;
737 while (*afp != NULL) {
738 if (!strcmp((*afp)->name, name))
739 return (*afp);
740 afp++;
741 }
742 if (index(name, ','))
743 fprintf(stderr, _("Please don't supply more than one address family.\n"));
744 return (NULL);
745}
746
747
748/* Check our protocol family table for this family. */
749struct aftype *get_afntype(int af)
750{
751 struct aftype **afp;
752
753 if (!sVafinit)
754 afinit();
755
756 afp = aftypes;
757 while (*afp != NULL) {
758 if ((*afp)->af == af)
759 return (*afp);
760 afp++;
761 }
762 return (NULL);
763}
764
765/* Check our protocol family table for this family and return its socket */
766int get_socket_for_af(int af)
767{
768 struct aftype **afp;
769
770 if (!sVafinit)
771 afinit();
772
773 afp = aftypes;
774 while (*afp != NULL) {
775 if ((*afp)->af == af)
776 return (*afp)->fd;
777 afp++;
778 }
779 return -1;
780}
781
782/* type: 0=all, 1=getroute */
783void print_aflist(int type) {
784 int count = 0;
785 char * txt;
786 struct aftype **afp;
787
788 if (!sVafinit)
789 afinit();
790
791 afp = aftypes;
792 while (*afp != NULL) {
793 if ((type == 1 && ((*afp)->rprint == NULL)) || ((*afp)->af == 0)) {
794 afp++; continue;
795 }
796 if ((count % 3) == 0) fprintf(stderr,count?"\n ":" ");
797 txt = (*afp)->name; if (!txt) txt = "..";
798 fprintf(stderr,"%s (%s) ",txt,(*afp)->title);
799 count++;
800 afp++;
801 }
802 fprintf(stderr,"\n");
803}
804
805struct user_net_device_stats {
806 unsigned long long rx_packets; /* total packets received */
807 unsigned long long tx_packets; /* total packets transmitted */
808 unsigned long long rx_bytes; /* total bytes received */
809 unsigned long long tx_bytes; /* total bytes transmitted */
810 unsigned long rx_errors; /* bad packets received */
811 unsigned long tx_errors; /* packet transmit problems */
812 unsigned long rx_dropped; /* no space in linux buffers */
813 unsigned long tx_dropped; /* no space available in linux */
814 unsigned long rx_multicast; /* multicast packets received */
815 unsigned long rx_compressed;
816 unsigned long tx_compressed;
817 unsigned long collisions;
818
819 /* detailed rx_errors: */
820 unsigned long rx_length_errors;
821 unsigned long rx_over_errors; /* receiver ring buff overflow */
822 unsigned long rx_crc_errors; /* recved pkt with crc error */
823 unsigned long rx_frame_errors; /* recv'd frame alignment error */
824 unsigned long rx_fifo_errors; /* recv'r fifo overrun */
825 unsigned long rx_missed_errors; /* receiver missed packet */
826 /* detailed tx_errors */
827 unsigned long tx_aborted_errors;
828 unsigned long tx_carrier_errors;
829 unsigned long tx_fifo_errors;
830 unsigned long tx_heartbeat_errors;
831 unsigned long tx_window_errors;
832};
833
834struct interface {
835 struct interface *next, *prev;
836 char name[IFNAMSIZ]; /* interface name */
837 short type; /* if type */
838 short flags; /* various flags */
839 int metric; /* routing metric */
840 int mtu; /* MTU value */
841 int tx_queue_len; /* transmit queue length */
842 struct ifmap map; /* hardware setup */
843 struct sockaddr addr; /* IP address */
844 struct sockaddr dstaddr; /* P-P IP address */
845 struct sockaddr broadaddr; /* IP broadcast address */
846 struct sockaddr netmask; /* IP network mask */
847 struct sockaddr ipxaddr_bb; /* IPX network address */
848 struct sockaddr ipxaddr_sn; /* IPX network address */
849 struct sockaddr ipxaddr_e3; /* IPX network address */
850 struct sockaddr ipxaddr_e2; /* IPX network address */
851 struct sockaddr ddpaddr; /* Appletalk DDP address */
852 struct sockaddr ecaddr; /* Econet address */
853 int has_ip;
854 int has_ipx_bb;
855 int has_ipx_sn;
856 int has_ipx_e3;
857 int has_ipx_e2;
858 int has_ax25;
859 int has_ddp;
860 int has_econet;
861 char hwaddr[32]; /* HW address */
862 int statistics_valid;
863 struct user_net_device_stats stats; /* statistics */
864 int keepalive; /* keepalive value for SLIP */
865 int outfill; /* outfill value for SLIP */
866};
867
868
869int opt_a = 0; /* show all interfaces */
870int opt_i = 0; /* show the statistics */
871int opt_v = 0; /* debugging output flag */
872
873int addr_family = 0; /* currently selected AF */
874static struct interface *int_list, *int_last;
875int skfd = -1; /* generic raw socket desc. */
876
877
878int sockets_open(int family)
879{
880 struct aftype **aft;
881 int sfd = -1;
882 static int force = -1;
883
884 if (force < 0) {
885 force = 0;
886 if (get_kernel_revision() < KRELEASE(2, 1, 0))
887 force = 1;
888 if (access("/proc/net", R_OK))
889 force = 1;
890 }
891 for (aft = aftypes; *aft; aft++) {
892 struct aftype *af = *aft;
893 int type = SOCK_DGRAM;
894 if (af->af == AF_UNSPEC)
895 continue;
896 if (family && family != af->af)
897 continue;
898 if (af->fd != -1) {
899 sfd = af->fd;
900 continue;
901 }
902 /* Check some /proc file first to not stress kmod */
903 if (!family && !force && af->flag_file) {
904 if (access(af->flag_file, R_OK))
905 continue;
906 }
907#if HAVE_AFNETROM
908 if (af->af == AF_NETROM)
909 type = SOCK_SEQPACKET;
910#endif
911#if HAVE_AFX25
912 if (af->af == AF_X25)
913 type = SOCK_SEQPACKET;
914#endif
915 af->fd = socket(af->af, type, 0);
916 if (af->fd >= 0)
917 sfd = af->fd;
918 }
919 if (sfd < 0)
920 fprintf(stderr, _("No usable address families found.\n"));
921 return sfd;
922}
923
924/* like strcmp(), but knows about numbers */
925int nstrcmp(const char *astr, const char *b)
926{
927 const char *a = astr;
928
929 while (*a == *b) {
930 if (*a == '\0')
931 return 0;
932 a++;
933 b++;
934 }
935 if (isdigit(*a)) {
936 if (!isdigit(*b))
937 return -1;
938 while (a > astr) {
939 a--;
940 if (!isdigit(*a)) {
941 a++;
942 break;
943 }
944 if (!isdigit(*b))
945 return -1;
946 b--;
947 }
948 return atoi(a) > atoi(b) ? 1 : -1;
949 }
950 return *a - *b;
951}
952
953static struct interface *add_interface(char *name)
954{
955 struct interface *ife, **nextp, *new;
956
957 for (ife = int_last; ife; ife = ife->prev) {
958 int n = nstrcmp(ife->name, name);
959 if (n == 0)
960 return ife;
961 if (n < 0)
962 break;
963 }
964 new(new);
965 safe_strncpy(new->name, name, IFNAMSIZ);
966 nextp = ife ? &ife->next : &int_list;
967 new->prev = ife;
968 new->next = *nextp;
969 if (new->next)
970 new->next->prev = new;
971 else
972 int_last = new;
973 *nextp = new;
974 return new;
975}
976
977
978static int if_readconf(void)
979{
980 int numreqs = 30;
981 struct ifconf ifc;
982 struct ifreq *ifr;
983 int n, err = -1;
984 int skfd;
985
986 /* SIOCGIFCONF currently seems to only work properly on AF_INET sockets
987 (as of 2.1.128) */
988 skfd = get_socket_for_af(AF_INET);
989 if (skfd < 0) {
990 fprintf(stderr, _("warning: no inet socket available: %s\n"),
991 strerror(errno));
992 /* Try to soldier on with whatever socket we can get hold of. */
993 skfd = sockets_open(0);
994 if (skfd < 0)
995 return -1;
996 }
997
998 ifc.ifc_buf = NULL;
999 for (;;) {
1000 ifc.ifc_len = sizeof(struct ifreq) * numreqs;
1001 ifc.ifc_buf = xrealloc(ifc.ifc_buf, ifc.ifc_len);
1002
1003 if (ioctl(skfd, SIOCGIFCONF, &ifc) < 0) {
1004 perror("SIOCGIFCONF");
1005 goto out;
1006 }
1007 if (ifc.ifc_len == sizeof(struct ifreq) * numreqs) {
1008 /* assume it overflowed and try again */
1009 numreqs += 10;
1010 continue;
1011 }
1012 break;
1013 }
1014
1015 ifr = ifc.ifc_req;
1016 for (n = 0; n < ifc.ifc_len; n += sizeof(struct ifreq)) {
1017 add_interface(ifr->ifr_name);
1018 ifr++;
1019 }
1020 err = 0;
1021
1022out:
1023 free(ifc.ifc_buf);
1024 return err;
1025}
1026
1027static char *get_name(char *name, char *p)
1028{
1029 while (isspace(*p))
1030 p++;
1031 while (*p) {
1032 if (isspace(*p))
1033 break;
1034 if (*p == ':') { /* could be an alias */
1035 char *dot = p, *dotname = name;
1036 *name++ = *p++;
1037 while (isdigit(*p))
1038 *name++ = *p++;
1039 if (*p != ':') { /* it wasn't, backup */
1040 p = dot;
1041 name = dotname;
1042 }
1043 if (*p == '\0')
1044 return NULL;
1045 p++;
1046 break;
1047 }
1048 *name++ = *p++;
1049 }
1050 *name++ = '\0';
1051 return p;
1052}
1053
1054static int get_dev_fields(char *bp, struct interface *ife)
1055{
1056 switch (procnetdev_vsn) {
1057 case 3:
1058 sscanf(bp,
1059 "%llu %llu %lu %lu %lu %lu %lu %lu %llu %llu %lu %lu %lu %lu %lu %lu",
1060 &ife->stats.rx_bytes,
1061 &ife->stats.rx_packets,
1062 &ife->stats.rx_errors,
1063 &ife->stats.rx_dropped,
1064 &ife->stats.rx_fifo_errors,
1065 &ife->stats.rx_frame_errors,
1066 &ife->stats.rx_compressed,
1067 &ife->stats.rx_multicast,
1068
1069 &ife->stats.tx_bytes,
1070 &ife->stats.tx_packets,
1071 &ife->stats.tx_errors,
1072 &ife->stats.tx_dropped,
1073 &ife->stats.tx_fifo_errors,
1074 &ife->stats.collisions,
1075 &ife->stats.tx_carrier_errors,
1076 &ife->stats.tx_compressed);
1077 break;
1078 case 2:
1079 sscanf(bp, "%llu %llu %lu %lu %lu %lu %llu %llu %lu %lu %lu %lu %lu",
1080 &ife->stats.rx_bytes,
1081 &ife->stats.rx_packets,
1082 &ife->stats.rx_errors,
1083 &ife->stats.rx_dropped,
1084 &ife->stats.rx_fifo_errors,
1085 &ife->stats.rx_frame_errors,
1086
1087 &ife->stats.tx_bytes,
1088 &ife->stats.tx_packets,
1089 &ife->stats.tx_errors,
1090 &ife->stats.tx_dropped,
1091 &ife->stats.tx_fifo_errors,
1092 &ife->stats.collisions,
1093 &ife->stats.tx_carrier_errors);
1094 ife->stats.rx_multicast = 0;
1095 break;
1096 case 1:
1097 sscanf(bp, "%llu %lu %lu %lu %lu %llu %lu %lu %lu %lu %lu",
1098 &ife->stats.rx_packets,
1099 &ife->stats.rx_errors,
1100 &ife->stats.rx_dropped,
1101 &ife->stats.rx_fifo_errors,
1102 &ife->stats.rx_frame_errors,
1103
1104 &ife->stats.tx_packets,
1105 &ife->stats.tx_errors,
1106 &ife->stats.tx_dropped,
1107 &ife->stats.tx_fifo_errors,
1108 &ife->stats.collisions,
1109 &ife->stats.tx_carrier_errors);
1110 ife->stats.rx_bytes = 0;
1111 ife->stats.tx_bytes = 0;
1112 ife->stats.rx_multicast = 0;
1113 break;
1114 }
1115 return 0;
1116}
1117
1118static int procnetdev_version(char *buf)
1119{
1120 if (strstr(buf, "compressed"))
1121 return 3;
1122 if (strstr(buf, "bytes"))
1123 return 2;
1124 return 1;
1125}
1126
1127static int if_readlist_proc(char *target)
1128{
1129 static int proc_read;
1130 FILE *fh;
1131 char buf[512];
1132 struct interface *ife;
1133 int err;
1134
1135 if (proc_read)
1136 return 0;
1137 if (!target)
1138 proc_read = 1;
1139
1140 fh = fopen(_PATH_PROCNET_DEV, "r");
1141 if (!fh) {
1142 fprintf(stderr, _("Warning: cannot open %s (%s). Limited output.\n"),
1143 _PATH_PROCNET_DEV, strerror(errno));
1144 return if_readconf();
1145 }
1146 fgets(buf, sizeof buf, fh); /* eat line */
1147 fgets(buf, sizeof buf, fh);
1148
1149#if 0 /* pretty, but can't cope with missing fields */
1150 fmt = proc_gen_fmt(_PATH_PROCNET_DEV, 1, fh,
1151 "face", "", /* parsed separately */
1152 "bytes", "%lu",
1153 "packets", "%lu",
1154 "errs", "%lu",
1155 "drop", "%lu",
1156 "fifo", "%lu",
1157 "frame", "%lu",
1158 "compressed", "%lu",
1159 "multicast", "%lu",
1160 "bytes", "%lu",
1161 "packets", "%lu",
1162 "errs", "%lu",
1163 "drop", "%lu",
1164 "fifo", "%lu",
1165 "colls", "%lu",
1166 "carrier", "%lu",
1167 "compressed", "%lu",
1168 NULL);
1169 if (!fmt)
1170 return -1;
1171#else
1172 procnetdev_vsn = procnetdev_version(buf);
1173#endif
1174
1175 err = 0;
1176 while (fgets(buf, sizeof buf, fh)) {
1177 char *s, name[IFNAMSIZ];
1178 s = get_name(name, buf);
1179 ife = add_interface(name);
1180 get_dev_fields(s, ife);
1181 ife->statistics_valid = 1;
1182 if (target && !strcmp(target,name))
1183 break;
1184 }
1185 if (ferror(fh)) {
1186 perror(_PATH_PROCNET_DEV);
1187 err = -1;
1188 proc_read = 0;
1189 }
1190
1191#if 0
1192 free(fmt);
1193#endif
1194 fclose(fh);
1195 return err;
1196}
1197
1198int if_readlist(void)
1199{
1200 int err = if_readlist_proc(NULL);
1201 if (!err)
1202 err = if_readconf();
1203 return err;
1204}
1205
1206int for_all_interfaces(int (*doit) (struct interface *, void *), void *cookie)
1207{
1208 struct interface *ife;
1209
1210 if (!int_list && (if_readlist() < 0))
1211 return -1;
1212 for (ife = int_list; ife; ife = ife->next) {
1213 int err = doit(ife, cookie);
1214 if (err)
1215 return err;
1216 }
1217 return 0;
1218}
1219
1220/* Support for fetching an IPX address */
1221
1222#if HAVE_AFIPX
1223static int ipx_getaddr(int sock, int ft, struct ifreq *ifr)
1224{
1225 ((struct sockaddr_ipx *) &ifr->ifr_addr)->sipx_type = ft;
1226 return ioctl(sock, SIOCGIFADDR, ifr);
1227}
1228#endif
1229
1230
1231/* Fetch the interface configuration from the kernel. */
1232int if_fetch(struct interface *ife)
1233{
1234 struct ifreq ifr;
1235 int fd;
1236 char *ifname = ife->name;
1237
1238 strcpy(ifr.ifr_name, ifname);
1239 if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0)
1240 return (-1);
1241 ife->flags = ifr.ifr_flags;
1242
1243 strcpy(ifr.ifr_name, ifname);
1244 if (ioctl(skfd, SIOCGIFHWADDR, &ifr) < 0)
1245 memset(ife->hwaddr, 0, 32);
1246 else
1247 memcpy(ife->hwaddr, ifr.ifr_hwaddr.sa_data, 8);
1248
1249 ife->type = ifr.ifr_hwaddr.sa_family;
1250
1251 strcpy(ifr.ifr_name, ifname);
1252 if (ioctl(skfd, SIOCGIFMETRIC, &ifr) < 0)
1253 ife->metric = 0;
1254 else
1255 ife->metric = ifr.ifr_metric;
1256
1257 strcpy(ifr.ifr_name, ifname);
1258 if (ioctl(skfd, SIOCGIFMTU, &ifr) < 0)
1259 ife->mtu = 0;
1260 else
1261 ife->mtu = ifr.ifr_mtu;
1262
1263#ifdef HAVE_HWSLIP
1264 if (ife->type == ARPHRD_SLIP || ife->type == ARPHRD_CSLIP ||
1265 ife->type == ARPHRD_SLIP6 || ife->type == ARPHRD_CSLIP6 ||
1266 ife->type == ARPHRD_ADAPT) {
1267#ifdef SIOCGOUTFILL
1268 strcpy(ifr.ifr_name, ifname);
1269 if (ioctl(skfd, SIOCGOUTFILL, &ifr) < 0)
1270 ife->outfill = 0;
1271 else
1272 ife->outfill = (unsigned int) ifr.ifr_data;
1273#endif
1274#ifdef SIOCGKEEPALIVE
1275 strcpy(ifr.ifr_name, ifname);
1276 if (ioctl(skfd, SIOCGKEEPALIVE, &ifr) < 0)
1277 ife->keepalive = 0;
1278 else
1279 ife->keepalive = (unsigned int) ifr.ifr_data;
1280#endif
1281 }
1282#endif
1283
1284 strcpy(ifr.ifr_name, ifname);
1285 if (ioctl(skfd, SIOCGIFMAP, &ifr) < 0)
1286 memset(&ife->map, 0, sizeof(struct ifmap));
1287 else
1288 memcpy(&ife->map, &ifr.ifr_map, sizeof(struct ifmap));
1289
1290 strcpy(ifr.ifr_name, ifname);
1291 if (ioctl(skfd, SIOCGIFMAP, &ifr) < 0)
1292 memset(&ife->map, 0, sizeof(struct ifmap));
1293 else
1294 ife->map = ifr.ifr_map;
1295
1296#ifdef HAVE_TXQUEUELEN
1297 strcpy(ifr.ifr_name, ifname);
1298 if (ioctl(skfd, SIOCGIFTXQLEN, &ifr) < 0)
1299 ife->tx_queue_len = -1; /* unknown value */
1300 else
1301 ife->tx_queue_len = ifr.ifr_qlen;
1302#else
1303 ife->tx_queue_len = -1; /* unknown value */
1304#endif
1305
1306#if HAVE_AFINET
1307 /* IPv4 address? */
1308 fd = get_socket_for_af(AF_INET);
1309 if (fd >= 0) {
1310 strcpy(ifr.ifr_name, ifname);
1311 ifr.ifr_addr.sa_family = AF_INET;
1312 if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
1313 ife->has_ip = 1;
1314 ife->addr = ifr.ifr_addr;
1315 strcpy(ifr.ifr_name, ifname);
1316 if (ioctl(fd, SIOCGIFDSTADDR, &ifr) < 0)
1317 memset(&ife->dstaddr, 0, sizeof(struct sockaddr));
1318 else
1319 ife->dstaddr = ifr.ifr_dstaddr;
1320
1321 strcpy(ifr.ifr_name, ifname);
1322 if (ioctl(fd, SIOCGIFBRDADDR, &ifr) < 0)
1323 memset(&ife->broadaddr, 0, sizeof(struct sockaddr));
1324 else
1325 ife->broadaddr = ifr.ifr_broadaddr;
1326
1327 strcpy(ifr.ifr_name, ifname);
1328 if (ioctl(fd, SIOCGIFNETMASK, &ifr) < 0)
1329 memset(&ife->netmask, 0, sizeof(struct sockaddr));
1330 else
1331 ife->netmask = ifr.ifr_netmask;
1332 } else
1333 memset(&ife->addr, 0, sizeof(struct sockaddr));
1334 }
1335#endif
1336
1337#if HAVE_AFATALK
1338 /* DDP address maybe ? */
1339 fd = get_socket_for_af(AF_APPLETALK);
1340 if (fd >= 0) {
1341 strcpy(ifr.ifr_name, ifname);
1342 if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
1343 ife->ddpaddr = ifr.ifr_addr;
1344 ife->has_ddp = 1;
1345 }
1346 }
1347#endif
1348
1349#if HAVE_AFIPX
1350 /* Look for IPX addresses with all framing types */
1351 fd = get_socket_for_af(AF_IPX);
1352 if (fd >= 0) {
1353 strcpy(ifr.ifr_name, ifname);
1354 if (!ipx_getaddr(fd, IPX_FRAME_ETHERII, &ifr)) {
1355 ife->has_ipx_bb = 1;
1356 ife->ipxaddr_bb = ifr.ifr_addr;
1357 }
1358 strcpy(ifr.ifr_name, ifname);
1359 if (!ipx_getaddr(fd, IPX_FRAME_SNAP, &ifr)) {
1360 ife->has_ipx_sn = 1;
1361 ife->ipxaddr_sn = ifr.ifr_addr;
1362 }
1363 strcpy(ifr.ifr_name, ifname);
1364 if (!ipx_getaddr(fd, IPX_FRAME_8023, &ifr)) {
1365 ife->has_ipx_e3 = 1;
1366 ife->ipxaddr_e3 = ifr.ifr_addr;
1367 }
1368 strcpy(ifr.ifr_name, ifname);
1369 if (!ipx_getaddr(fd, IPX_FRAME_8022, &ifr)) {
1370 ife->has_ipx_e2 = 1;
1371 ife->ipxaddr_e2 = ifr.ifr_addr;
1372 }
1373 }
1374#endif
1375
1376#if HAVE_AFECONET
1377 /* Econet address maybe? */
1378 fd = get_socket_for_af(AF_ECONET);
1379 if (fd >= 0) {
1380 strcpy(ifr.ifr_name, ifname);
1381 if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
1382 ife->ecaddr = ifr.ifr_addr;
1383 ife->has_econet = 1;
1384 }
1385 }
1386#endif
1387
1388 return 0;
1389}
1390
1391
1392int do_if_fetch(struct interface *ife)
1393{
1394 if (if_fetch(ife) < 0) {
1395 char *errmsg;
1396 if (errno == ENODEV) {
1397 /* Give better error message for this case. */
1398 errmsg = _("Device not found");
1399 } else {
1400 errmsg = strerror(errno);
1401 }
1402 fprintf(stderr, _("%s: error fetching interface information: %s\n"),
1403 ife->name, errmsg);
1404 return -1;
1405 }
1406 return 0;
1407}
1408
1409/* This structure defines hardware protocols and their handlers. */
1410struct hwtype {
1411 char *name;
1412 char *title;
1413 int type;
1414 int alen;
1415 char *(*print) (unsigned char *);
1416 int (*input) (char *, struct sockaddr *);
1417 int (*activate) (int fd);
1418 int suppress_null_addr;
1419};
1420
1421/* Display an UNSPEC address. */
1422static char *pr_unspec(unsigned char *ptr)
1423{
1424 static char buff[64];
1425 char *pos;
1426 unsigned int i;
1427
1428 pos = buff;
1429 for (i = 0; i < sizeof(struct sockaddr); i++) {
1430 pos += sprintf(pos, "%02X-", (*ptr++ & 0377));
1431 }
1432 buff[strlen(buff) - 1] = '\0';
1433 return (buff);
1434}
1435
1436struct hwtype unspec_hwtype =
1437{
1438 "unspec", NULL, /*"UNSPEC", */ -1, 0,
1439 pr_unspec, NULL, NULL
1440};
1441
1442struct hwtype loop_hwtype =
1443{
1444 "loop", NULL, /*"Local Loopback", */ ARPHRD_LOOPBACK, 0,
1445 NULL, NULL, NULL
1446};
1447
1448#if HAVE_HWETHER
1449#include <net/if_arp.h>
1450#include <linux/if_ether.h>
1451
1452extern struct hwtype ether_hwtype;
1453
1454/* Display an Ethernet address in readable format. */
1455static char *pr_ether(unsigned char *ptr)
1456{
1457 static char buff[64];
1458
1459 snprintf(buff, sizeof(buff), "%02X:%02X:%02X:%02X:%02X:%02X",
1460 (ptr[0] & 0377), (ptr[1] & 0377), (ptr[2] & 0377),
1461 (ptr[3] & 0377), (ptr[4] & 0377), (ptr[5] & 0377)
1462 );
1463 return (buff);
1464}
1465
1466
1467/* Input an Ethernet address and convert to binary. */
1468static int in_ether(char *bufp, struct sockaddr *sap)
1469{
1470 unsigned char *ptr;
1471 char c, *orig;
1472 int i;
1473 unsigned val;
1474
1475 sap->sa_family = ether_hwtype.type;
1476 ptr = sap->sa_data;
1477
1478 i = 0;
1479 orig = bufp;
1480 while ((*bufp != '\0') && (i < ETH_ALEN)) {
1481 val = 0;
1482 c = *bufp++;
1483 if (isdigit(c))
1484 val = c - '0';
1485 else if (c >= 'a' && c <= 'f')
1486 val = c - 'a' + 10;
1487 else if (c >= 'A' && c <= 'F')
1488 val = c - 'A' + 10;
1489 else {
1490#ifdef DEBUG
1491 fprintf(stderr, _("in_ether(%s): invalid ether address!\n"), orig);
1492#endif
1493 errno = EINVAL;
1494 return (-1);
1495 }
1496 val <<= 4;
1497 c = *bufp;
1498 if (isdigit(c))
1499 val |= c - '0';
1500 else if (c >= 'a' && c <= 'f')
1501 val |= c - 'a' + 10;
1502 else if (c >= 'A' && c <= 'F')
1503 val |= c - 'A' + 10;
1504 else if (c == ':' || c == 0)
1505 val >>= 4;
1506 else {
1507#ifdef DEBUG
1508 fprintf(stderr, _("in_ether(%s): invalid ether address!\n"), orig);
1509#endif
1510 errno = EINVAL;
1511 return (-1);
1512 }
1513 if (c != 0)
1514 bufp++;
1515 *ptr++ = (unsigned char) (val & 0377);
1516 i++;
1517
1518 /* We might get a semicolon here - not required. */
1519 if (*bufp == ':') {
1520 if (i == ETH_ALEN) {
1521#ifdef DEBUG
1522 fprintf(stderr, _("in_ether(%s): trailing : ignored!\n"),
1523 orig)
1524#endif
1525 ; /* nothing */
1526 }
1527 bufp++;
1528 }
1529 }
1530
1531 /* That's it. Any trailing junk? */
1532 if ((i == ETH_ALEN) && (*bufp != '\0')) {
1533#ifdef DEBUG
1534 fprintf(stderr, _("in_ether(%s): trailing junk!\n"), orig);
1535 errno = EINVAL;
1536 return (-1);
1537#endif
1538 }
1539#ifdef DEBUG
1540 fprintf(stderr, "in_ether(%s): %s\n", orig, pr_ether(sap->sa_data));
1541#endif
1542
1543 return (0);
1544}
1545
1546
1547struct hwtype ether_hwtype =
1548{
1549 "ether", NULL, /*"10Mbps Ethernet", */ ARPHRD_ETHER, ETH_ALEN,
1550 pr_ether, in_ether, NULL
1551};
1552
1553
1554#endif /* HAVE_HWETHER */
1555
1556
1557#if HAVE_HWPPP
1558
1559#include <net/if_arp.h>
1560
1561/* Start the PPP encapsulation on the file descriptor. */
1562static int do_ppp(int fd)
1563{
1564 fprintf(stderr, _("You cannot start PPP with this program.\n"));
1565 return -1;
1566}
1567
1568
1569struct hwtype ppp_hwtype =
1570{
1571 "ppp", NULL, /*"Point-Point Protocol", */ ARPHRD_PPP, 0,
1572 NULL, NULL, do_ppp, 0
1573};
1574
1575
1576#endif /* HAVE_PPP */
1577
1578static struct hwtype *hwtypes[] =
1579{
1580
1581 &loop_hwtype,
1582
1583#if HAVE_HWSLIP
1584 &slip_hwtype,
1585 &cslip_hwtype,
1586 &slip6_hwtype,
1587 &cslip6_hwtype,
1588 &adaptive_hwtype,
1589#endif
1590#if HAVE_HWSTRIP
1591 &strip_hwtype,
1592#endif
1593#if HAVE_HWASH
1594 &ash_hwtype,
1595#endif
1596#if HAVE_HWETHER
1597 &ether_hwtype,
1598#endif
1599#if HAVE_HWTR
1600 &tr_hwtype,
1601#ifdef ARPHRD_IEEE802_TR
1602 &tr_hwtype1,
1603#endif
1604#endif
1605#if HAVE_HWAX25
1606 &ax25_hwtype,
1607#endif
1608#if HAVE_HWNETROM
1609 &netrom_hwtype,
1610#endif
1611#if HAVE_HWROSE
1612 &rose_hwtype,
1613#endif
1614#if HAVE_HWTUNNEL
1615 &tunnel_hwtype,
1616#endif
1617#if HAVE_HWPPP
1618 &ppp_hwtype,
1619#endif
1620#if HAVE_HWHDLCLAPB
1621 &hdlc_hwtype,
1622 &lapb_hwtype,
1623#endif
1624#if HAVE_HWARC
1625 &arcnet_hwtype,
1626#endif
1627#if HAVE_HWFR
1628 &dlci_hwtype,
1629 &frad_hwtype,
1630#endif
1631#if HAVE_HWSIT
1632 &sit_hwtype,
1633#endif
1634#if HAVE_HWFDDI
1635 &fddi_hwtype,
1636#endif
1637#if HAVE_HWHIPPI
1638 &hippi_hwtype,
1639#endif
1640#if HAVE_HWIRDA
1641 &irda_hwtype,
1642#endif
1643#if HAVE_HWEC
1644 &ec_hwtype,
1645#endif
1646#if HAVE_HWX25
1647 &x25_hwtype,
1648#endif
1649 &unspec_hwtype,
1650 NULL
1651};
1652
1653static short sVhwinit = 0;
1654
1655void hwinit()
1656{
1657 loop_hwtype.title = _("Local Loopback");
1658 unspec_hwtype.title = _("UNSPEC");
1659#if HAVE_HWSLIP
1660 slip_hwtype.title = _("Serial Line IP");
1661 cslip_hwtype.title = _("VJ Serial Line IP");
1662 slip6_hwtype.title = _("6-bit Serial Line IP");
1663 cslip6_hwtype.title = _("VJ 6-bit Serial Line IP");
1664 adaptive_hwtype.title = _("Adaptive Serial Line IP");
1665#endif
1666#if HAVE_HWETHER
1667 ether_hwtype.title = _("Ethernet");
1668#endif
1669#if HAVE_HWASH
1670 ash_hwtype.title = _("Ash");
1671#endif
1672#if HAVE_HWFDDI
1673 fddi_hwtype.title = _("Fiber Distributed Data Interface");
1674#endif
1675#if HAVE_HWHIPPI
1676 hippi_hwtype.title = _("HIPPI");
1677#endif
1678#if HAVE_HWAX25
1679 ax25_hwtype.title = _("AMPR AX.25");
1680#endif
1681#if HAVE_HWROSE
1682 rose_hwtype.title = _("AMPR ROSE");
1683#endif
1684#if HAVE_HWNETROM
1685 netrom_hwtype.title = _("AMPR NET/ROM");
1686#endif
1687#if HAVE_HWX25
1688 x25_hwtype.title = _("generic X.25");
1689#endif
1690#if HAVE_HWTUNNEL
1691 tunnel_hwtype.title = _("IPIP Tunnel");
1692#endif
1693#if HAVE_HWPPP
1694 ppp_hwtype.title = _("Point-to-Point Protocol");
1695#endif
1696#if HAVE_HWHDLCLAPB
1697 hdlc_hwtype.title = _("(Cisco)-HDLC");
1698 lapb_hwtype.title = _("LAPB");
1699#endif
1700#if HAVE_HWARC
1701 arcnet_hwtype.title = _("ARCnet");
1702#endif
1703#if HAVE_HWFR
1704 dlci_hwtype.title = _("Frame Relay DLCI");
1705 frad_hwtype.title = _("Frame Relay Access Device");
1706#endif
1707#if HAVE_HWSIT
1708 sit_hwtype.title = _("IPv6-in-IPv4");
1709#endif
1710#if HAVE_HWIRDA
1711 irda_hwtype.title = _("IrLAP");
1712#endif
1713#if HAVE_HWTR
1714 tr_hwtype.title = _("16/4 Mbps Token Ring");
1715#ifdef ARPHRD_IEEE802_TR
1716 tr_hwtype1.title = _("16/4 Mbps Token Ring (New)") ;
1717#endif
1718#endif
1719#if HAVE_HWEC
1720 ec_hwtype.title = _("Econet");
1721#endif
1722 sVhwinit = 1;
1723}
1724
1725#ifdef IFF_PORTSEL
1726const char *if_port_text[][4] =
1727{
1728 /* Keep in step with <linux/netdevice.h> */
1729 {"unknown", NULL, NULL, NULL},
1730 {"10base2", "bnc", "coax", NULL},
1731 {"10baseT", "utp", "tpe", NULL},
1732 {"AUI", "thick", "db15", NULL},
1733 {"100baseT", NULL, NULL, NULL},
1734 {"100baseTX", NULL, NULL, NULL},
1735 {"100baseFX", NULL, NULL, NULL},
1736 {NULL, NULL, NULL, NULL},
1737};
1738#endif
1739
1740/* Check our hardware type table for this type. */
1741struct hwtype *get_hwntype(int type)
1742{
1743 struct hwtype **hwp;
1744
1745 if (!sVhwinit)
1746 hwinit();
1747
1748 hwp = hwtypes;
1749 while (*hwp != NULL) {
1750 if ((*hwp)->type == type)
1751 return (*hwp);
1752 hwp++;
1753 }
1754 return (NULL);
1755}
1756
1757/* return 1 if address is all zeros */
1758int hw_null_address(struct hwtype *hw, void *ap)
1759{
1760 unsigned int i;
1761 unsigned char *address = (unsigned char *)ap;
1762 for (i = 0; i < hw->alen; i++)
1763 if (address[i])
1764 return 0;
1765 return 1;
1766}
1767
1768void ife_print(struct interface *ptr)
1769{
1770 struct aftype *ap;
1771 struct hwtype *hw;
1772 int hf;
1773 int can_compress = 0;
1774 unsigned long long rx, tx, short_rx, short_tx;
1775 char Rext[5]="b";
1776 char Text[5]="b";
1777
1778#if HAVE_AFIPX
1779 static struct aftype *ipxtype = NULL;
1780#endif
1781#if HAVE_AFECONET
1782 static struct aftype *ectype = NULL;
1783#endif
1784#if HAVE_AFATALK
1785 static struct aftype *ddptype = NULL;
1786#endif
1787#if HAVE_AFINET6
1788 FILE *f;
1789 char addr6[40], devname[20];
1790 struct sockaddr_in6 sap;
1791 int plen, scope, dad_status, if_idx;
1792 extern struct aftype inet6_aftype;
1793 char addr6p[8][5];
1794#endif
1795
1796 ap = get_afntype(ptr->addr.sa_family);
1797 if (ap == NULL)
1798 ap = get_afntype(0);
1799
1800 hf = ptr->type;
1801
1802 if (hf == ARPHRD_CSLIP || hf == ARPHRD_CSLIP6)
1803 can_compress = 1;
1804
1805 hw = get_hwntype(hf);
1806 if (hw == NULL)
1807 hw = get_hwntype(-1);
1808
1809 printf(_("%-9.9s Link encap:%s "), ptr->name, hw->title);
1810 /* For some hardware types (eg Ash, ATM) we don't print the
1811 hardware address if it's null. */
1812 if (hw->print != NULL && (! (hw_null_address(hw, ptr->hwaddr) &&
1813 hw->suppress_null_addr)))
1814 printf(_("HWaddr %s "), hw->print(ptr->hwaddr));
1815#ifdef IFF_PORTSEL
1816 if (ptr->flags & IFF_PORTSEL) {
1817 printf(_("Media:%s"), if_port_text[ptr->map.port][0]);
1818 if (ptr->flags & IFF_AUTOMEDIA)
1819 printf(_("(auto)"));
1820 }
1821#endif
1822 printf("\n");
1823
1824#if HAVE_AFINET
1825 if (ptr->has_ip) {
1826 printf(_(" %s addr:%s "), ap->name,
1827 ap->sprint(&ptr->addr, 1));
1828 if (ptr->flags & IFF_POINTOPOINT) {
1829 printf(_(" P-t-P:%s "), ap->sprint(&ptr->dstaddr, 1));
1830 }
1831 if (ptr->flags & IFF_BROADCAST) {
1832 printf(_(" Bcast:%s "), ap->sprint(&ptr->broadaddr, 1));
1833 }
1834 printf(_(" Mask:%s\n"), ap->sprint(&ptr->netmask, 1));
1835 }
1836#endif
1837
1838#if HAVE_AFINET6
1839 /* FIXME: should be integrated into interface.c. */
1840
1841 if ((f = fopen(_PATH_PROCNET_IFINET6, "r")) != NULL) {
1842 while (fscanf(f, "%4s%4s%4s%4s%4s%4s%4s%4s %02x %02x %02x %02x %20s\n",
1843 addr6p[0], addr6p[1], addr6p[2], addr6p[3],
1844 addr6p[4], addr6p[5], addr6p[6], addr6p[7],
1845 &if_idx, &plen, &scope, &dad_status, devname) != EOF) {
1846 if (!strcmp(devname, ptr->name)) {
1847 sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s",
1848 addr6p[0], addr6p[1], addr6p[2], addr6p[3],
1849 addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
1850 inet6_aftype.input(1, addr6, (struct sockaddr *) &sap);
1851 printf(_(" inet6 addr: %s/%d"),
1852 inet6_aftype.sprint((struct sockaddr *) &sap, 1), plen);
1853 printf(_(" Scope:"));
1854 switch (scope) {
1855 case 0:
1856 printf(_("Global"));
1857 break;
1858 case IPV6_ADDR_LINKLOCAL:
1859 printf(_("Link"));
1860 break;
1861 case IPV6_ADDR_SITELOCAL:
1862 printf(_("Site"));
1863 break;
1864 case IPV6_ADDR_COMPATv4:
1865 printf(_("Compat"));
1866 break;
1867 case IPV6_ADDR_LOOPBACK:
1868 printf(_("Host"));
1869 break;
1870 default:
1871 printf(_("Unknown"));
1872 }
1873 printf("\n");
1874 }
1875 }
1876 fclose(f);
1877 }
1878#endif
1879
1880#if HAVE_AFIPX
1881 if (ipxtype == NULL)
1882 ipxtype = get_afntype(AF_IPX);
1883
1884 if (ipxtype != NULL) {
1885 if (ptr->has_ipx_bb)
1886 printf(_(" IPX/Ethernet II addr:%s\n"),
1887 ipxtype->sprint(&ptr->ipxaddr_bb, 1));
1888 if (ptr->has_ipx_sn)
1889 printf(_(" IPX/Ethernet SNAP addr:%s\n"),
1890 ipxtype->sprint(&ptr->ipxaddr_sn, 1));
1891 if (ptr->has_ipx_e2)
1892 printf(_(" IPX/Ethernet 802.2 addr:%s\n"),
1893 ipxtype->sprint(&ptr->ipxaddr_e2, 1));
1894 if (ptr->has_ipx_e3)
1895 printf(_(" IPX/Ethernet 802.3 addr:%s\n"),
1896 ipxtype->sprint(&ptr->ipxaddr_e3, 1));
1897 }
1898#endif
1899
1900#if HAVE_AFATALK
1901 if (ddptype == NULL)
1902 ddptype = get_afntype(AF_APPLETALK);
1903 if (ddptype != NULL) {
1904 if (ptr->has_ddp)
1905 printf(_(" EtherTalk Phase 2 addr:%s\n"), ddptype->sprint(&ptr->ddpaddr, 1));
1906 }
1907#endif
1908
1909#if HAVE_AFECONET
1910 if (ectype == NULL)
1911 ectype = get_afntype(AF_ECONET);
1912 if (ectype != NULL) {
1913 if (ptr->has_econet)
1914 printf(_(" econet addr:%s\n"), ectype->sprint(&ptr->ecaddr, 1));
1915 }
1916#endif
1917
1918 printf(" ");
1919 /* DONT FORGET TO ADD THE FLAGS IN ife_print_short, too */
1920 if (ptr->flags == 0)
1921 printf(_("[NO FLAGS] "));
1922 if (ptr->flags & IFF_UP)
1923 printf(_("UP "));
1924 if (ptr->flags & IFF_BROADCAST)
1925 printf(_("BROADCAST "));
1926 if (ptr->flags & IFF_DEBUG)
1927 printf(_("DEBUG "));
1928 if (ptr->flags & IFF_LOOPBACK)
1929 printf(_("LOOPBACK "));
1930 if (ptr->flags & IFF_POINTOPOINT)
1931 printf(_("POINTOPOINT "));
1932 if (ptr->flags & IFF_NOTRAILERS)
1933 printf(_("NOTRAILERS "));
1934 if (ptr->flags & IFF_RUNNING)
1935 printf(_("RUNNING "));
1936 if (ptr->flags & IFF_NOARP)
1937 printf(_("NOARP "));
1938 if (ptr->flags & IFF_PROMISC)
1939 printf(_("PROMISC "));
1940 if (ptr->flags & IFF_ALLMULTI)
1941 printf(_("ALLMULTI "));
1942 if (ptr->flags & IFF_SLAVE)
1943 printf(_("SLAVE "));
1944 if (ptr->flags & IFF_MASTER)
1945 printf(_("MASTER "));
1946 if (ptr->flags & IFF_MULTICAST)
1947 printf(_("MULTICAST "));
1948#ifdef HAVE_DYNAMIC
1949 if (ptr->flags & IFF_DYNAMIC)
1950 printf(_("DYNAMIC "));
1951#endif
1952 /* DONT FORGET TO ADD THE FLAGS IN ife_print_short */
1953 printf(_(" MTU:%d Metric:%d"),
1954 ptr->mtu, ptr->metric ? ptr->metric : 1);
1955#ifdef SIOCSKEEPALIVE
1956 if (ptr->outfill || ptr->keepalive)
1957 printf(_(" Outfill:%d Keepalive:%d"),
1958 ptr->outfill, ptr->keepalive);
1959#endif
1960 printf("\n");
1961
1962 /* If needed, display the interface statistics. */
1963
1964 if (ptr->statistics_valid) {
1965 /* XXX: statistics are currently only printed for the primary address,
1966 * not for the aliases, although strictly speaking they're shared
1967 * by all addresses.
1968 */
1969 printf(" ");
1970
1971 printf(_("RX packets:%llu errors:%lu dropped:%lu overruns:%lu frame:%lu\n"),
1972 ptr->stats.rx_packets, ptr->stats.rx_errors,
1973 ptr->stats.rx_dropped, ptr->stats.rx_fifo_errors,
1974 ptr->stats.rx_frame_errors);
1975 if (can_compress)
1976 printf(_(" compressed:%lu\n"), ptr->stats.rx_compressed);
1977
1978 rx = ptr->stats.rx_bytes;
1979 tx = ptr->stats.tx_bytes;
1980 short_rx = rx * 10;
1981 short_tx = tx * 10;
1982 if (rx > 1048576) { short_rx /= 1048576; strcpy(Rext, "Mb"); }
1983 else if (rx > 1024) { short_rx /= 1024; strcpy(Rext, "Kb"); }
1984 if (tx > 1048576) { short_tx /= 1048576; strcpy(Text, "Mb"); }
1985 else if (tx > 1024) { short_tx /= 1024; strcpy(Text, "Kb"); }
1986
1987 printf(" ");
1988 printf(_("TX packets:%llu errors:%lu dropped:%lu overruns:%lu carrier:%lu\n"),
1989 ptr->stats.tx_packets, ptr->stats.tx_errors,
1990 ptr->stats.tx_dropped, ptr->stats.tx_fifo_errors,
1991 ptr->stats.tx_carrier_errors);
1992 printf(_(" collisions:%lu "), ptr->stats.collisions);
1993 if (can_compress)
1994 printf(_("compressed:%lu "), ptr->stats.tx_compressed);
1995 if (ptr->tx_queue_len != -1)
1996 printf(_("txqueuelen:%d "), ptr->tx_queue_len);
1997 printf("\n ");
1998 printf(_("RX bytes:%llu (%lu.%lu %s) TX bytes:%llu (%lu.%lu %s)\n"),
1999 rx, (unsigned long)(short_rx / 10),
2000 (unsigned long)(short_rx % 10), Rext,
2001 tx, (unsigned long)(short_tx / 10),
2002 (unsigned long)(short_tx % 10), Text);
2003 }
2004
2005 if ((ptr->map.irq || ptr->map.mem_start || ptr->map.dma ||
2006 ptr->map.base_addr)) {
2007 printf(" ");
2008 if (ptr->map.irq)
2009 printf(_("Interrupt:%d "), ptr->map.irq);
2010 if (ptr->map.base_addr >= 0x100) /* Only print devices using it for
2011 I/O maps */
2012 printf(_("Base address:0x%x "), ptr->map.base_addr);
2013 if (ptr->map.mem_start) {
2014 printf(_("Memory:%lx-%lx "), ptr->map.mem_start, ptr->map.mem_end);
2015 }
2016 if (ptr->map.dma)
2017 printf(_("DMA chan:%x "), ptr->map.dma);
2018 printf("\n");
2019 }
2020 printf("\n");
2021}
2022
2023
2024int do_if_print(struct interface *ife, void *cookie)
2025{
2026 int *opt_a = (int *) cookie;
2027 int res;
2028
2029 res = do_if_fetch(ife);
2030 if (res >= 0) {
2031 if ((ife->flags & IFF_UP) || *opt_a)
2032 ife_print(ife);
2033 }
2034 return res;
2035}
2036
2037struct interface *lookup_interface(char *name)
2038{
2039 struct interface *ife = NULL;
2040
2041 if (if_readlist_proc(name) < 0)
2042 return NULL;
2043 ife = add_interface(name);
2044 return ife;
2045}
2046
2047/* for ipv4 add/del modes */
2048static int if_print(char *ifname)
2049{
2050 int res;
2051
2052 if (!ifname) {
2053 res = for_all_interfaces(do_if_print, &opt_a);
2054 } else {
2055 struct interface *ife;
2056
2057 ife = lookup_interface(ifname);
2058 res = do_if_fetch(ife);
2059 if (res >= 0)
2060 ife_print(ife);
2061 }
2062 return res;
2063}
2064
2065int display_interfaces(void)
2066{
2067 int status;
2068
2069 /* Create a channel to the NET kernel. */
2070 if ((skfd = sockets_open(0)) < 0) {
2071 perror("socket");
2072 exit(1);
2073 }
2074
2075 /* Do we have to show the current setup? */
2076 status = if_print((char *) NULL);
2077 close(skfd);
2078 exit(status < 0);
2079}
2080
diff --git a/networking/ifconfig.c b/networking/ifconfig.c
index a3e2c0fdb..2a50a9605 100644
--- a/networking/ifconfig.c
+++ b/networking/ifconfig.c
@@ -15,16 +15,19 @@
15 * Foundation; either version 2 of the License, or (at 15 * Foundation; either version 2 of the License, or (at
16 * your option) any later version. 16 * your option) any later version.
17 * 17 *
18 * $Id: ifconfig.c,v 1.3 2001/02/20 06:14:07 andersen Exp $ 18 * $Id: ifconfig.c,v 1.4 2001/03/06 00:48:59 andersen Exp $
19 *
20 * Majorly hacked up by Larry Doolittle <ldoolitt@recycle.lbl.gov>
19 * 21 *
20 */ 22 */
21 23
24#include "busybox.h"
25#include <sys/types.h>
22#include <stdio.h> 26#include <stdio.h>
23#include <stdlib.h> 27#include <stdlib.h>
24#include <errno.h> 28#include <errno.h>
25#include <string.h> // strcmp and friends 29#include <string.h> // strcmp and friends
26#include <ctype.h> // isdigit and friends 30#include <ctype.h> // isdigit and friends
27#include <sys/types.h>
28#include <sys/socket.h> 31#include <sys/socket.h>
29#include <sys/ioctl.h> 32#include <sys/ioctl.h>
30#include <netinet/in.h> 33#include <netinet/in.h>
@@ -32,10 +35,50 @@
32#include <net/if.h> 35#include <net/if.h>
33#include <net/if_arp.h> 36#include <net/if_arp.h>
34#include <linux/if_ether.h> 37#include <linux/if_ether.h>
35#include "busybox.h"
36 38
37static int sockfd; /* socket fd we use to manipulate stuff with */ 39static int sockfd; /* socket fd we use to manipulate stuff with */
38 40
41#define TESTME 0
42#if TESTME
43#define ioctl test_ioctl
44char *saddr_to_a(struct sockaddr *s)
45{
46 if (s->sa_family == ARPHRD_ETHER) {
47 static char hw[18];
48 sprintf(hw, "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x",
49 s->sa_data[0], s->sa_data[1], s->sa_data[2],
50 s->sa_data[3], s->sa_data[4], s->sa_data[5]);
51 return hw;
52 } else if (s->sa_family == AF_INET) {
53 struct sockaddr_in *ss = (struct sockaddr_in *) s;
54 return inet_ntoa(ss->sin_addr);
55 } else {
56 return NULL;
57 }
58}
59
60int test_ioctl(int __fd, unsigned long int __request, void *param)
61{
62 struct ifreq *i=(struct ifreq *)param;
63 printf("ioctl fd=%d, request=%ld\n", __fd, __request);
64
65 switch(__request) {
66 case SIOCGIFFLAGS: printf(" SIOCGIFFLAGS\n"); i->ifr_flags = 0; break;
67 case SIOCSIFFLAGS: printf(" SIOCSIFFLAGS, %x\n", i->ifr_flags); break;
68 case SIOCSIFMETRIC: printf(" SIOCSIFMETRIC, %d\n", i->ifr_metric); break;
69 case SIOCSIFMTU: printf(" SIOCSIFMTU, %d\n", i->ifr_mtu); break;
70 case SIOCSIFBRDADDR: printf(" SIOCSIFBRDADDR, %s\n", saddr_to_a(&(i->ifr_broadaddr))); break;
71 case SIOCSIFDSTADDR: printf(" SIOCSIFDSTADDR, %s\n", saddr_to_a(&(i->ifr_dstaddr ))); break;
72 case SIOCSIFNETMASK: printf(" SIOCSIFNETMASK, %s\n", saddr_to_a(&(i->ifr_netmask ))); break;
73 case SIOCSIFADDR: printf(" SIOCSIFADDR, %s\n", saddr_to_a(&(i->ifr_addr ))); break;
74 case SIOCSIFHWADDR: printf(" SIOCSIFHWADDR, %s\n", saddr_to_a(&(i->ifr_hwaddr ))); break; /* broken */
75 default:
76 }
77 return 0;
78}
79#endif
80
81
39/* print usage and exit */ 82/* print usage and exit */
40 83
41#define _(x) x 84#define _(x) x
@@ -49,7 +92,7 @@ set_flag(char *ifname, short flag)
49 strcpy(ifr.ifr_name, ifname); 92 strcpy(ifr.ifr_name, ifname);
50 if (ioctl(sockfd, SIOCGIFFLAGS, &ifr) < 0) { 93 if (ioctl(sockfd, SIOCGIFFLAGS, &ifr) < 0) {
51 perror("SIOCGIFFLAGS"); 94 perror("SIOCGIFFLAGS");
52 return (-1); 95 return -1;
53 } 96 }
54 strcpy(ifr.ifr_name, ifname); 97 strcpy(ifr.ifr_name, ifname);
55 ifr.ifr_flags |= flag; 98 ifr.ifr_flags |= flag;
@@ -57,7 +100,7 @@ set_flag(char *ifname, short flag)
57 perror("SIOCSIFFLAGS"); 100 perror("SIOCSIFFLAGS");
58 return -1; 101 return -1;
59 } 102 }
60 return (0); 103 return 0;
61} 104}
62 105
63 106
@@ -78,9 +121,62 @@ clr_flag(char *ifname, short flag)
78 perror("SIOCSIFFLAGS"); 121 perror("SIOCSIFFLAGS");
79 return -1; 122 return -1;
80 } 123 }
81 return (0); 124 return 0;
82} 125}
83 126
127/* which element in struct ifreq to frob */
128enum frob {
129 L_METRIC,
130 L_MTU,
131 L_DATA,
132 L_BROAD,
133 L_DEST,
134 L_MASK,
135 L_HWAD,
136};
137
138
139struct flag_map {
140 char *name;
141 enum frob frob;
142 int flag;
143 int sflag;
144 int action;
145};
146
147/* action:
148 * 2 set
149 * 4 clear
150 * 6 set/clear
151 * 8 clear/set
152 * 10 numeric
153 * 12 address
154 * 14 address/clear
155 */
156const static struct flag_map flag_table[] = {
157 {"arp", 0, IFF_NOARP, 0, 6},
158 {"trailers", 0, IFF_NOTRAILERS, 0, 6},
159 {"promisc", 0, IFF_PROMISC, 0, 8},
160 {"multicast", 0, IFF_MULTICAST, 0, 8},
161 {"allmulti", 0, IFF_ALLMULTI, 0, 8},
162 {"up", 0, (IFF_UP | IFF_RUNNING), 0, 2},
163 {"down", 0, IFF_UP, 0, 4},
164 {"metric", L_METRIC, 0, SIOCSIFMETRIC, 10},
165 {"mtu", L_MTU, 0, SIOCSIFMTU, 10},
166#ifdef SIOCSKEEPALIVE
167 {"keepalive", L_DATA, 0, SIOCSKEEPALIVE, 10},
168#endif
169#ifdef SIOCSOUTFILL
170 {"outfill", L_DATA, 0, SIOCSOUTFILL, 10},
171#endif
172 {"broadcast", L_BROAD, IFF_BROADCAST, SIOCSIFBRDADDR, 14},
173 {"dstaddr", L_DEST, 0, SIOCSIFDSTADDR, 12},
174 {"netmask", L_MASK, 0, SIOCSIFNETMASK, 12},
175 {"pointopoint", L_DEST, IFF_POINTOPOINT, SIOCSIFDSTADDR, 14},
176 {"hw", L_HWAD, 0, SIOCSIFHWADDR, 14},
177};
178
179
84/* resolve XXX.YYY.ZZZ.QQQ -> binary */ 180/* resolve XXX.YYY.ZZZ.QQQ -> binary */
85 181
86static int 182static int
@@ -90,15 +186,16 @@ INET_resolve(char *name, struct sockaddr_in *sin)
90 sin->sin_port = 0; 186 sin->sin_port = 0;
91 187
92 /* Default is special, meaning 0.0.0.0. */ 188 /* Default is special, meaning 0.0.0.0. */
93 if (!strcmp(name, "default")) { 189 if (strcmp(name, "default")==0) {
94 sin->sin_addr.s_addr = INADDR_ANY; 190 sin->sin_addr.s_addr = INADDR_ANY;
95 return (1); 191 return 1;
96 } 192 }
97 /* Look to see if it's a dotted quad. */ 193 /* Look to see if it's a dotted quad. */
98 if (inet_aton(name, &sin->sin_addr)) { 194 if (inet_aton(name, &sin->sin_addr)) {
99 return 0; 195 return 0;
100 } 196 }
101 /* guess not.. */ 197 /* guess not.. */
198 errno = EINVAL;
102 return -1; 199 return -1;
103} 200}
104 201
@@ -127,12 +224,12 @@ in_ether(char *bufp, struct sockaddr *sap)
127 val = c - 'A' + 10; 224 val = c - 'A' + 10;
128 else { 225 else {
129#ifdef DEBUG 226#ifdef DEBUG
130 fprintf(stderr, 227 error_msg(
131 _("in_ether(%s): invalid ether address!\n"), 228 _("in_ether(%s): invalid ether address!"),
132 orig); 229 orig);
133#endif 230#endif
134 errno = EINVAL; 231 errno = EINVAL;
135 return (-1); 232 return -1;
136 } 233 }
137 val <<= 4; 234 val <<= 4;
138 c = *bufp; 235 c = *bufp;
@@ -146,22 +243,19 @@ in_ether(char *bufp, struct sockaddr *sap)
146 val >>= 4; 243 val >>= 4;
147 else { 244 else {
148#ifdef DEBUG 245#ifdef DEBUG
149 fprintf(stderr, 246 error_msg(
150 _("in_ether(%s): invalid ether address!\n"), 247 _("in_ether(%s): invalid ether address!"),
151 orig); 248 orig);
152#endif 249#endif
153 errno = EINVAL; 250 errno = EINVAL;
154 return (-1); 251 return -1;
155 } 252 }
156 if (c != 0) 253 if (c != 0)
157 bufp++; 254 bufp++;
158 *ptr++ = (unsigned char) (val & 0377); 255 *ptr++ = (unsigned char) (val & 0377);
159 i++; 256 i++;
160 257
161 /* We might get a semicolon here - not required. */ 258 /* optional colon already handled, don't swallow a second */
162 if (*bufp == ':')
163 bufp++;
164
165 } 259 }
166 260
167 if(i != ETH_ALEN) { 261 if(i != ETH_ALEN) {
@@ -171,25 +265,37 @@ in_ether(char *bufp, struct sockaddr *sap)
171 265
172 return 0; 266 return 0;
173} 267}
268
269#ifdef BB_FEATURE_IFCONFIG_STATUS
270extern int display_interfaces(void);
271#else
272int display_interfaces(void)
273{
274 show_usage();
275}
276#endif
174 277
175int ifconfig_main(int argc, char **argv) 278int ifconfig_main(int argc, char **argv)
176{ 279{
177 struct ifreq ifr; 280 struct ifreq ifr;
178 struct sockaddr_in sa; 281 struct sockaddr_in sa;
179 struct sockaddr sa2; 282 char **spp, *cmd;
180 char **spp;
181 int goterr = 0; 283 int goterr = 0;
182 int r, didnetmask = 0; 284 int r;
285 /* int didnetmask = 0; special case input error detection no longer implemented */
183 char host[128]; 286 char host[128];
287 const struct flag_map *ft;
288 int i, sense;
289 int a, ecode;
290 struct sockaddr *d;
184 291
185 if(argc < 2) { 292 if(argc < 2) {
186 show_usage(); 293 return(display_interfaces());
187 } 294 }
188 295
189 /* Create a channel to the NET kernel. */ 296 /* Create a channel to the NET kernel. */
190 if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { 297 if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
191 perror("socket"); 298 perror_msg_and_die("socket");
192 exit(1);
193 } 299 }
194 300
195 /* skip argv[0] */ 301 /* skip argv[0] */
@@ -205,235 +311,84 @@ int ifconfig_main(int argc, char **argv)
205 311
206 /* Process the remaining arguments. */ 312 /* Process the remaining arguments. */
207 while (*spp != (char *) NULL) { 313 while (*spp != (char *) NULL) {
208 if (!strcmp(*spp, "arp")) { 314 cmd = *spp;
209 goterr |= clr_flag(ifr.ifr_name, IFF_NOARP); 315 sense=0;
210 spp++; 316 if (*cmd=='-') {
211 continue; 317 sense=1;
212 } 318 cmd++;
213 if (!strcmp(*spp, "-arp")) {
214 goterr |= set_flag(ifr.ifr_name, IFF_NOARP);
215 spp++;
216 continue;
217 }
218
219 if (!strcmp(*spp, "trailers")) {
220 goterr |= clr_flag(ifr.ifr_name, IFF_NOTRAILERS);
221 spp++;
222 continue;
223 }
224 if (!strcmp(*spp, "-trailers")) {
225 goterr |= set_flag(ifr.ifr_name, IFF_NOTRAILERS);
226 spp++;
227 continue;
228 }
229 if (!strcmp(*spp, "promisc")) {
230 goterr |= set_flag(ifr.ifr_name, IFF_PROMISC);
231 spp++;
232 continue;
233 }
234 if (!strcmp(*spp, "-promisc")) {
235 goterr |= clr_flag(ifr.ifr_name, IFF_PROMISC);
236 spp++;
237 continue;
238 }
239 if (!strcmp(*spp, "multicast")) {
240 goterr |= set_flag(ifr.ifr_name, IFF_MULTICAST);
241 spp++;
242 continue;
243 }
244 if (!strcmp(*spp, "-multicast")) {
245 goterr |= clr_flag(ifr.ifr_name, IFF_MULTICAST);
246 spp++;
247 continue;
248 }
249 if (!strcmp(*spp, "allmulti")) {
250 goterr |= set_flag(ifr.ifr_name, IFF_ALLMULTI);
251 spp++;
252 continue;
253 }
254 if (!strcmp(*spp, "-allmulti")) {
255 goterr |= clr_flag(ifr.ifr_name, IFF_ALLMULTI);
256 spp++;
257 continue;
258 }
259 if (!strcmp(*spp, "up")) {
260 goterr |= set_flag(ifr.ifr_name, (IFF_UP | IFF_RUNNING));
261 spp++;
262 continue;
263 }
264 if (!strcmp(*spp, "down")) {
265 goterr |= clr_flag(ifr.ifr_name, IFF_UP);
266 spp++;
267 continue;
268 }
269
270 if (!strcmp(*spp, "metric")) {
271 if (*++spp == NULL)
272 show_usage();
273 ifr.ifr_metric = atoi(*spp);
274 if (ioctl(sockfd, SIOCSIFMETRIC, &ifr) < 0) {
275 fprintf(stderr, "SIOCSIFMETRIC: %s\n", strerror(errno));
276 goterr++;
277 }
278 spp++;
279 continue;
280 }
281 if (!strcmp(*spp, "mtu")) {
282 if (*++spp == NULL)
283 show_usage();
284 ifr.ifr_mtu = atoi(*spp);
285 if (ioctl(sockfd, SIOCSIFMTU, &ifr) < 0) {
286 fprintf(stderr, "SIOCSIFMTU: %s\n", strerror(errno));
287 goterr++;
288 }
289 spp++;
290 continue;
291 } 319 }
292#ifdef SIOCSKEEPALIVE 320 ft = NULL;
293 if (!strcmp(*spp, "keepalive")) { 321 for (i=0; i<(sizeof(flag_table)/sizeof(struct flag_map)); i++) {
294 if (*++spp == NULL) 322 if (strcmp(cmd, flag_table[i].name)==0) {
295 show_usage(); 323 ft=flag_table+i;
296 ifr.ifr_data = (caddr_t) atoi(*spp); 324 spp++;
297 if (ioctl(sockfd, SIOCSKEEPALIVE, &ifr) < 0) { 325 break;
298 fprintf(stderr, "SIOCSKEEPALIVE: %s\n", strerror(errno));
299 goterr++;
300 }
301 spp++;
302 continue;
303 }
304#endif
305
306#ifdef SIOCSOUTFILL
307 if (!strcmp(*spp, "outfill")) {
308 if (*++spp == NULL)
309 show_usage();
310 ifr.ifr_data = (caddr_t) atoi(*spp);
311 if (ioctl(sockfd, SIOCSOUTFILL, &ifr) < 0) {
312 fprintf(stderr, "SIOCSOUTFILL: %s\n", strerror(errno));
313 goterr++;
314 } 326 }
315 spp++;
316 continue;
317 } 327 }
318#endif 328 if (ft) {
329 switch (ft->action+sense) {
330 case 4:
331 case 7:
332 case 8:
333 case 15:
334 goterr |= clr_flag(ifr.ifr_name, ft->flag);
335 break;
336 case 2:
337 case 6:
338 case 9:
339 goterr |= set_flag(ifr.ifr_name, ft->flag);
340 break;
341 case 10:
342 if (*spp == NULL)
343 show_usage();
344 a = atoi(*spp++);
345 switch (ft->frob) {
346 case L_METRIC: ifr.ifr_metric = a; break;
347 case L_MTU: ifr.ifr_mtu = a; break;
348 case L_DATA: ifr.ifr_data = (caddr_t) a; break;
349 default: error_msg_and_die("bugaboo");
350 }
319 351
320 if (!strcmp(*spp, "-broadcast")) { 352 if (ioctl(sockfd, ft->sflag, &ifr) < 0) {
321 goterr |= clr_flag(ifr.ifr_name, IFF_BROADCAST); 353 perror(ft->name); /* imperfect */
322 spp++;
323 continue;
324 }
325 if (!strcmp(*spp, "broadcast")) {
326 if (*++spp != NULL) {
327 safe_strncpy(host, *spp, (sizeof host));
328 if (INET_resolve(host, &sa) < 0) {
329 goterr++; 354 goterr++;
330 spp++;
331 continue;
332 } 355 }
333 memcpy((char *) &ifr.ifr_broadaddr, 356 break;
334 (char *) &sa, 357 case 12:
335 sizeof(struct sockaddr)); 358 case 14:
336 if (ioctl(sockfd, SIOCSIFBRDADDR, &ifr) < 0) { 359 if (ft->action+sense==10 && *spp == NULL) {
337 perror("SIOCSIFBRDADDR"); 360 show_usage();
338 goterr++; 361 break;
339 } 362 }
340 spp++; 363 if (*spp != NULL) {
341 } 364 safe_strncpy(host, *spp, (sizeof host));
342 goterr |= set_flag(ifr.ifr_name, IFF_BROADCAST);
343 continue;
344 }
345 if (!strcmp(*spp, "dstaddr")) {
346 if (*++spp == NULL)
347 show_usage();
348 safe_strncpy(host, *spp, (sizeof host));
349 if (INET_resolve(host, &sa) < 0) {
350 goterr++;
351 spp++;
352 continue;
353 }
354 memcpy((char *) &ifr.ifr_dstaddr, (char *) &sa,
355 sizeof(struct sockaddr));
356 if (ioctl(sockfd, SIOCSIFDSTADDR, &ifr) < 0) {
357 fprintf(stderr, "SIOCSIFDSTADDR: %s\n",
358 strerror(errno));
359 goterr++;
360 }
361 spp++;
362 continue;
363 }
364 if (!strcmp(*spp, "netmask")) {
365 if (*++spp == NULL || didnetmask)
366 show_usage();
367 safe_strncpy(host, *spp, (sizeof host));
368 if (INET_resolve(host, &sa) < 0) {
369 goterr++;
370 spp++;
371 continue;
372 }
373 didnetmask++;
374 memcpy((char *) &ifr.ifr_netmask, (char *) &sa,
375 sizeof(struct sockaddr));
376 if (ioctl(sockfd, SIOCSIFNETMASK, &ifr) < 0) {
377 perror("SIOCSIFNETMASK");
378 goterr++;
379 }
380 spp++;
381 continue;
382 }
383
384 if (!strcmp(*spp, "-pointopoint")) {
385 goterr |= clr_flag(ifr.ifr_name, IFF_POINTOPOINT);
386 spp++;
387 continue;
388 }
389 if (!strcmp(*spp, "pointopoint")) {
390 if (*(spp + 1) != NULL) {
391 spp++;
392 safe_strncpy(host, *spp, (sizeof host));
393 if (INET_resolve(host, &sa)) {
394 goterr++;
395 spp++; 365 spp++;
396 continue; 366 if (ft->frob == L_HWAD) {
367 ecode = in_ether(host, &ifr.ifr_hwaddr);
368 } else {
369 switch (ft->frob) {
370 case L_BROAD: d = &ifr.ifr_broadaddr; break;
371 case L_DEST: d = &ifr.ifr_dstaddr; break;
372 case L_MASK: d = &ifr.ifr_netmask; break;
373 default: error_msg_and_die("bugaboo");
374 }
375 ecode = INET_resolve(host, (struct sockaddr_in *) d);
376 }
377 if (ecode < 0 || ioctl(sockfd, ft->sflag, &ifr) < 0) {
378 perror(ft->name); /* imperfect */
379 goterr++;
380 }
397 } 381 }
398 memcpy((char *) &ifr.ifr_dstaddr, (char *) &sa, 382 if (ft->flag != 0) {
399 sizeof(struct sockaddr)); 383 goterr |= set_flag(ifr.ifr_name, ft->flag);
400 if (ioctl(sockfd, SIOCSIFDSTADDR, &ifr) < 0) {
401 perror("SIOCSIFDSTADDR");
402 goterr++;
403 } 384 }
404 } 385 break;
405 goterr |= set_flag(ifr.ifr_name, IFF_POINTOPOINT); 386 default:
406 spp++;
407 continue;
408 };
409
410 if (!strcmp(*spp, "hw")) {
411 if (*++spp == NULL || strcmp("ether", *spp)) {
412 show_usage(); 387 show_usage();
413 } 388 } /* end of switch */
414
415 if (*++spp == NULL) {
416 /* silently ignore it if no address */
417 continue;
418 }
419
420 safe_strncpy(host, *spp, (sizeof host));
421 if (in_ether(host, &sa2) < 0) {
422 fprintf(stderr, "invalid hw-addr %s\n", host);
423 goterr++;
424 spp++;
425 continue;
426 }
427 memcpy((char *) &ifr.ifr_hwaddr, (char *) &sa2,
428 sizeof(struct sockaddr));
429 if (ioctl(sockfd, SIOCSIFHWADDR, &ifr) < 0) {
430 perror("SIOCSIFHWADDR");
431 goterr++;
432 }
433 spp++;
434 continue; 389 continue;
435 } 390 }
436 391
437 /* If the next argument is a valid hostname, assume OK. */ 392 /* If the next argument is a valid hostname, assume OK. */
438 safe_strncpy(host, *spp, (sizeof host)); 393 safe_strncpy(host, *spp, (sizeof host));
439 394
@@ -471,6 +426,6 @@ int ifconfig_main(int argc, char **argv)
471 426
472 } /* end of while-loop */ 427 } /* end of while-loop */
473 428
474 exit(0); 429 return goterr;
475} 430}
476 431
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-03-22 15:44:21 +0000