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1 | /* |
2 | * $Id: libnet_link_dlpi.c,v 1.19 2005/11/29 22:43:19 carlosc Exp $ | |
3 | * | |
4 | * libnet | |
5 | * libnet_dlpi.c - dlpi routines | |
6 | * | |
7 | * Copyright (c) 1998 - 2004 Mike D. Schiffman <mike@infonexus.com> | |
8 | * All rights reserved. | |
9 | * | |
10 | * Copyright (c) 1993, 1994, 1995, 1996, 1997 | |
11 | * The Regents of the University of California. All rights reserved. | |
12 | * | |
13 | * Redistribution and use in source and binary forms, with or without | |
14 | * modification, are permitted provided that: (1) source code distributions | |
15 | * retain the above copyright notice and this paragraph in its entirety, (2) | |
16 | * distributions including binary code include the above copyright notice and | |
17 | * this paragraph in its entirety in the documentation or other materials | |
18 | * provided with the distribution, and (3) all advertising materials mentioning | |
19 | * features or use of this software display the following acknowledgement: | |
20 | * ``This product includes software developed by the University of California, | |
21 | * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of | |
22 | * the University nor the names of its contributors may be used to endorse | |
23 | * or promote products derived from this software without specific prior | |
24 | * written permission. | |
25 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED | |
26 | * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF | |
27 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
28 | * | |
29 | * This code contributed by Atanu Ghosh (atanu@cs.ucl.ac.uk), | |
30 | * University College London. | |
31 | */ | |
32 | ||
33 | ||
34 | #if (HAVE_CONFIG_H) | |
35 | #include "../include/config.h" | |
36 | #endif | |
37 | #include <sys/types.h> | |
38 | #include <sys/time.h> | |
39 | #ifdef HAVE_SYS_BUFMOD_H | |
40 | #include <sys/bufmod.h> | |
41 | #endif | |
42 | #include <sys/dlpi.h> | |
43 | #ifdef HAVE_HPUX9 | |
44 | #include <sys/socket.h> | |
45 | #endif | |
46 | #ifdef DL_HP_PPA_ACK_OBS | |
47 | #include <sys/stat.h> | |
48 | #endif | |
49 | #include <sys/stream.h> | |
50 | #if defined(HAVE_SOLARIS) && defined(HAVE_SYS_BUFMOD_H) | |
51 | #include <sys/systeminfo.h> | |
52 | #endif | |
53 | ||
54 | #ifdef HAVE_SYS_DLPI_EXT_H | |
55 | #include <sys/dlpi_ext.h> | |
56 | #endif | |
57 | ||
58 | #ifdef HAVE_HPUX9 | |
59 | #include <net/if.h> | |
60 | #endif | |
61 | ||
62 | #include <ctype.h> | |
63 | #ifdef HAVE_HPUX9 | |
64 | #include <nlist.h> | |
65 | #include <dlpi_ext.h> | |
66 | #endif | |
67 | #include <errno.h> | |
68 | #include <fcntl.h> | |
69 | #include <memory.h> | |
70 | #include <stdio.h> | |
71 | #include <stdlib.h> | |
72 | #include <string.h> | |
73 | #include <stropts.h> | |
74 | #include <unistd.h> | |
75 | ||
76 | #include "../include/libnet.h" | |
77 | #include "../include/bpf.h" | |
78 | ||
79 | #include "../include/gnuc.h" | |
80 | #ifdef HAVE_OS_PROTO_H | |
81 | #include "../include/os-proto.h" | |
82 | #endif | |
83 | ||
84 | #ifndef DLPI_DEV_PREFIX | |
85 | #define DLPI_DEV_PREFIX "/dev" | |
86 | #endif | |
87 | ||
88 | #define MAXDLBUF 8192 | |
89 | ||
90 | /* Forwards */ | |
91 | static int dlattachreq(int, bpf_u_int32, int8_t *); | |
92 | static int dlbindack(int, int8_t *, int8_t *); | |
93 | static int dlbindreq(int, bpf_u_int32, int8_t *); | |
94 | static int dlinfoack(int, int8_t *, int8_t *); | |
95 | static int dlinforeq(int, int8_t *); | |
96 | static int dlokack(int, const int8_t *, int8_t *, int8_t *); | |
97 | static int recv_ack(int, int, const int8_t *, int8_t *, int8_t *); | |
98 | static int send_request(int, int8_t *, int, int8_t *, int8_t *, int); | |
99 | #ifdef HAVE_SYS_BUFMOD_H | |
100 | static int strioctl(int, int, int, int8_t *); | |
101 | #endif | |
102 | #ifdef HAVE_HPUX9 | |
103 | static int dlpi_kread(int, off_t, void *, u_int, int8_t *); | |
104 | #endif | |
105 | #ifdef HAVE_DEV_DLPI | |
106 | static int get_dlpi_ppa(int, const int8_t *, int, int8_t *); | |
107 | #endif | |
108 | ||
109 | /* XXX Needed by HP-UX (at least) */ | |
110 | static bpf_u_int32 ctlbuf[MAXDLBUF]; | |
111 | ||
112 | ||
113 | int | |
114 | libnet_open_link(libnet_t *l) | |
115 | { | |
116 | register int8_t *cp; | |
117 | int8_t *eos; | |
118 | register int ppa; | |
119 | register dl_info_ack_t *infop; | |
120 | bpf_u_int32 buf[MAXDLBUF]; | |
121 | int8_t dname[100]; | |
122 | #ifndef HAVE_DEV_DLPI | |
123 | int8_t dname2[100]; | |
124 | #endif | |
125 | ||
126 | if (l == NULL) | |
127 | { | |
128 | return (-1); | |
129 | } | |
130 | ||
131 | /* | |
132 | * Determine device and ppa | |
133 | */ | |
134 | cp = strpbrk(l->device, "0123456789"); | |
135 | if (cp == NULL) | |
136 | { | |
137 | snprintf(l->err_buf, LIBNET_ERRBUF_SIZE, | |
138 | "%s(): %s is missing unit number\n", __func__, l->device); | |
139 | goto bad; | |
140 | } | |
141 | ppa = strtol(cp, &eos, 10); | |
142 | if (*eos != '\0') | |
143 | { | |
144 | snprintf(l->err_buf, LIBNET_ERRBUF_SIZE, | |
145 | "%s(): %s bad unit number\n", __func__, l->device); | |
146 | goto bad; | |
147 | } | |
148 | ||
149 | if (*(l->device) == '/') | |
150 | { | |
151 | memset(&dname, 0, sizeof(dname)); | |
152 | strncpy(dname, l->device, sizeof(dname) - 1); | |
153 | dname[sizeof(dname) - 1] = '\0'; | |
154 | } | |
155 | else | |
156 | { | |
157 | sprintf(dname, "%s/%s", DLPI_DEV_PREFIX, l->device); | |
158 | } | |
159 | #ifdef HAVE_DEV_DLPI | |
160 | /* | |
161 | * Map network device to /dev/dlpi unit | |
162 | */ | |
163 | cp = "/dev/dlpi"; | |
164 | ||
165 | l->fd = open(cp, O_RDWR); | |
166 | if (l->fd == -1) | |
167 | { | |
168 | snprintf(l->err_buf, LIBNET_ERRBUF_SIZE, "%s(): open(): %s: %s\n", | |
169 | __func__, cp, strerror(errno)); | |
170 | goto bad; | |
171 | } | |
172 | ||
173 | /* | |
174 | * Map network interface to /dev/dlpi unit | |
175 | */ | |
176 | ppa = get_dlpi_ppa(l->fd, dname, ppa, l->err_buf); | |
177 | if (ppa < 0) | |
178 | { | |
179 | goto bad; | |
180 | } | |
181 | #else | |
182 | /* | |
183 | * Try device without unit number | |
184 | */ | |
185 | strcpy(dname2, dname); | |
186 | cp = strchr(dname, *cp); | |
187 | *cp = '\0'; | |
188 | ||
189 | l->fd = open(dname, O_RDWR); | |
190 | if (l->fd == -1) | |
191 | { | |
192 | if (errno != ENOENT) | |
193 | { | |
194 | snprintf(l->err_buf, LIBNET_ERRBUF_SIZE, "%s(): open(): %s: %s\n", | |
195 | __func__, dname, strerror(errno)); | |
196 | goto bad; | |
197 | } | |
198 | ||
199 | /* | |
200 | * Try again with unit number | |
201 | */ | |
202 | l->fd = open(dname2, O_RDWR); | |
203 | if (l->fd == -1) | |
204 | { | |
205 | snprintf(l->err_buf, LIBNET_ERRBUF_SIZE, "%s(): open(): %s: %s\n", | |
206 | __func__, dname2, strerror(errno)); | |
207 | goto bad; | |
208 | } | |
209 | ||
210 | cp = dname2; | |
211 | while (*cp && !isdigit((int)*cp)) | |
212 | { | |
213 | cp++; | |
214 | } | |
215 | if (*cp) | |
216 | { | |
217 | ppa = atoi(cp); | |
218 | } | |
219 | else | |
220 | /* | |
221 | * XXX Assume unit zero | |
222 | */ | |
223 | ppa = 0; | |
224 | } | |
225 | #endif | |
226 | /* | |
227 | * Attach if "style 2" provider | |
228 | */ | |
229 | if (dlinforeq(l->fd, l->err_buf) < 0 || | |
230 | dlinfoack(l->fd, (int8_t *)buf, l->err_buf) < 0) | |
231 | { | |
232 | goto bad; | |
233 | } | |
234 | infop = &((union DL_primitives *)buf)->info_ack; | |
235 | if (infop->dl_provider_style == DL_STYLE2 && | |
236 | (dlattachreq(l->fd, ppa, l->err_buf) | |
237 | < 0 || dlokack(l->fd, "attach", (int8_t *)buf, l->err_buf) < 0)) | |
238 | { | |
239 | goto bad; | |
240 | } | |
241 | ||
242 | /* | |
243 | * Bind HP-UX 9 and HP-UX 10.20 | |
244 | */ | |
245 | #if defined(HAVE_HPUX9) || defined(HAVE_HPUX10_20) || defined(HAVE_HPUX11) || defined(HAVE_SOLARIS) | |
246 | if (dlbindreq(l->fd, 0, l->err_buf) < 0 || | |
247 | dlbindack(l->fd, (int8_t *)buf, l->err_buf) < 0) | |
248 | { | |
249 | goto bad; | |
250 | } | |
251 | #endif | |
252 | ||
253 | /* | |
254 | * Determine link type | |
255 | */ | |
256 | if (dlinforeq(l->fd, l->err_buf) < 0 || | |
257 | dlinfoack(l->fd, (int8_t *)buf, l->err_buf) < 0) | |
258 | { | |
259 | goto bad; | |
260 | } | |
261 | ||
262 | infop = &((union DL_primitives *)buf)->info_ack; | |
263 | switch (infop->dl_mac_type) | |
264 | { | |
265 | case DL_CSMACD: | |
266 | case DL_ETHER: | |
267 | l->link_type = DLT_EN10MB; | |
268 | l->link_offset = 0xe; | |
269 | break; | |
270 | case DL_FDDI: | |
271 | l->link_type = DLT_FDDI; | |
272 | l->link_offset = 0x15; | |
273 | break; | |
274 | case DL_TPR: | |
275 | l->link_type = DLT_PRONET; | |
276 | l->link_offset = 0x16; | |
277 | break; | |
278 | default: | |
279 | sprintf(l->err_buf, "%s(): unknown mac type 0x%lu\n", __func__, | |
280 | (u_int32_t) infop->dl_mac_type); | |
281 | goto bad; | |
282 | } | |
283 | ||
284 | #ifdef DLIOCRAW | |
285 | /* | |
286 | * This is a non standard SunOS hack to get the ethernet header. | |
287 | */ | |
288 | if (strioctl(l->fd, DLIOCRAW, 0, NULL) < 0) | |
289 | { | |
290 | sprintf(l->err_buf, "%s(): DLIOCRAW: %s\n", __func__, strerror(errno)); | |
291 | goto bad; | |
292 | } | |
293 | #endif | |
294 | ||
295 | return (1); | |
296 | bad: | |
297 | if (l->fd > 0) | |
298 | { | |
299 | close(l->fd); /* this can fail ok */ | |
300 | } | |
301 | return (-1); | |
302 | } | |
303 | ||
304 | ||
305 | static int | |
306 | send_request(int fd, int8_t *ptr, int len, int8_t *what, int8_t *ebuf, | |
307 | int flags) | |
308 | { | |
309 | struct strbuf ctl; | |
310 | ||
311 | ctl.maxlen = 0; | |
312 | ctl.len = len; | |
313 | ctl.buf = ptr; | |
314 | ||
315 | if (putmsg(fd, &ctl, (struct strbuf *) NULL, flags) < 0) | |
316 | { | |
317 | sprintf(ebuf, "%s(): putmsg \"%s\": %s\n", __func__, what, | |
318 | strerror(errno)); | |
319 | return (-1); | |
320 | } | |
321 | return (0); | |
322 | } | |
323 | ||
324 | static int | |
325 | recv_ack(int fd, int size, const int8_t *what, int8_t *bufp, int8_t *ebuf) | |
326 | { | |
327 | union DL_primitives *dlp; | |
328 | struct strbuf ctl; | |
329 | int flags; | |
330 | ||
331 | ctl.maxlen = MAXDLBUF; | |
332 | ctl.len = 0; | |
333 | ctl.buf = bufp; | |
334 | ||
335 | flags = 0; | |
336 | if (getmsg(fd, &ctl, (struct strbuf*)NULL, &flags) < 0) | |
337 | { | |
338 | sprintf(ebuf, "%s(): %s getmsg: %s\n", __func__, what, strerror(errno)); | |
339 | return (-1); | |
340 | } | |
341 | ||
342 | dlp = (union DL_primitives *)ctl.buf; | |
343 | switch (dlp->dl_primitive) | |
344 | { | |
345 | case DL_INFO_ACK: | |
346 | case DL_PHYS_ADDR_ACK: | |
347 | case DL_BIND_ACK: | |
348 | case DL_OK_ACK: | |
349 | #ifdef DL_HP_PPA_ACK | |
350 | case DL_HP_PPA_ACK: | |
351 | #endif | |
352 | /* | |
353 | * These are OK | |
354 | */ | |
355 | break; | |
356 | ||
357 | case DL_ERROR_ACK: | |
358 | switch (dlp->error_ack.dl_errno) | |
359 | { | |
360 | case DL_BADPPA: | |
361 | sprintf(ebuf, "recv_ack: %s bad ppa (device unit)", what); | |
362 | break; | |
363 | case DL_SYSERR: | |
364 | sprintf(ebuf, "recv_ack: %s: %s", | |
365 | what, strerror(dlp->error_ack.dl_unix_errno)); | |
366 | break; | |
367 | case DL_UNSUPPORTED: | |
368 | sprintf(ebuf, | |
369 | "recv_ack: %s: Service not supplied by provider", what); | |
370 | break; | |
371 | default: | |
372 | sprintf(ebuf, "recv_ack: %s error 0x%x", what, | |
373 | (bpf_u_int32)dlp->error_ack.dl_errno); | |
374 | break; | |
375 | } | |
376 | return (-1); | |
377 | ||
378 | default: | |
379 | sprintf(ebuf, "recv_ack: %s unexpected primitive ack 0x%x ", | |
380 | what, (bpf_u_int32)dlp->dl_primitive); | |
381 | return (-1); | |
382 | } | |
383 | ||
384 | if (ctl.len < size) | |
385 | { | |
386 | sprintf(ebuf, "recv_ack: %s ack too small (%d < %d)", | |
387 | what, ctl.len, size); | |
388 | return (-1); | |
389 | } | |
390 | return (ctl.len); | |
391 | } | |
392 | ||
393 | static int | |
394 | dlattachreq(int fd, bpf_u_int32 ppa, int8_t *ebuf) | |
395 | { | |
396 | dl_attach_req_t req; | |
397 | ||
398 | req.dl_primitive = DL_ATTACH_REQ; | |
399 | req.dl_ppa = ppa; | |
400 | ||
401 | return (send_request(fd, (int8_t *)&req, sizeof(req), "attach", ebuf, 0)); | |
402 | } | |
403 | ||
404 | static int | |
405 | dlbindreq(int fd, bpf_u_int32 sap, int8_t *ebuf) | |
406 | { | |
407 | ||
408 | dl_bind_req_t req; | |
409 | ||
410 | memset((int8_t *)&req, 0, sizeof(req)); | |
411 | req.dl_primitive = DL_BIND_REQ; | |
412 | #ifdef DL_HP_RAWDLS | |
413 | req.dl_max_conind = 1; /* XXX magic number */ | |
414 | /* | |
415 | * 22 is INSAP as per the HP-UX DLPI Programmer's Guide | |
416 | */ | |
417 | req.dl_sap = 22; | |
418 | req.dl_service_mode = DL_HP_RAWDLS; | |
419 | #else | |
420 | req.dl_sap = sap; | |
421 | #ifdef DL_CLDLS | |
422 | req.dl_service_mode = DL_CLDLS; | |
423 | #endif | |
424 | #endif | |
425 | return (send_request(fd, (int8_t *)&req, sizeof(req), "bind", ebuf, 0)); | |
426 | } | |
427 | ||
428 | static int | |
429 | dlbindack(int fd, int8_t *bufp, int8_t *ebuf) | |
430 | { | |
431 | return (recv_ack(fd, DL_BIND_ACK_SIZE, "bind", bufp, ebuf)); | |
432 | } | |
433 | ||
434 | static int | |
435 | dlokack(int fd, const int8_t *what, int8_t *bufp, int8_t *ebuf) | |
436 | { | |
437 | return (recv_ack(fd, DL_OK_ACK_SIZE, what, bufp, ebuf)); | |
438 | } | |
439 | ||
440 | static int | |
441 | dlinforeq(int fd, int8_t *ebuf) | |
442 | { | |
443 | dl_info_req_t req; | |
444 | ||
445 | req.dl_primitive = DL_INFO_REQ; | |
446 | ||
447 | return (send_request(fd, (int8_t *)&req, sizeof(req), "info", ebuf, | |
448 | RS_HIPRI)); | |
449 | } | |
450 | ||
451 | static int | |
452 | dlinfoack(int fd, int8_t *bufp, int8_t *ebuf) | |
453 | { | |
454 | return (recv_ack(fd, DL_INFO_ACK_SIZE, "info", bufp, ebuf)); | |
455 | } | |
456 | ||
457 | ||
458 | #ifdef HAVE_SYS_BUFMOD_H | |
459 | static int | |
460 | strioctl(int fd, int cmd, int len, int8_t *dp) | |
461 | { | |
462 | struct strioctl str; | |
463 | int rc; | |
464 | ||
465 | str.ic_cmd = cmd; | |
466 | str.ic_timout = -1; | |
467 | str.ic_len = len; | |
468 | str.ic_dp = dp; | |
469 | ||
470 | rc = ioctl(fd, I_STR, &str); | |
471 | if (rc < 0) | |
472 | { | |
473 | return (rc); | |
474 | } | |
475 | else | |
476 | { | |
477 | return (str.ic_len); | |
478 | } | |
479 | } | |
480 | #endif | |
481 | ||
482 | ||
483 | #if (defined(DL_HP_PPA_ACK_OBS) && !defined(HAVE_HPUX11)) | |
484 | /* | |
485 | * Under HP-UX 10, we can ask for the ppa | |
486 | */ | |
487 | static int | |
488 | get_dlpi_ppa(register int fd, register const int8_t *device, register int unit, | |
489 | register int8_t *ebuf) | |
490 | { | |
491 | register dl_hp_ppa_ack_t *ap; | |
492 | register dl_hp_ppa_info_t *ip; | |
493 | register int i; | |
494 | register u_int32_t majdev; | |
495 | dl_hp_ppa_req_t req; | |
496 | struct stat statbuf; | |
497 | bpf_u_int32 buf[MAXDLBUF]; | |
498 | ||
499 | if (stat(device, &statbuf) < 0) | |
500 | { | |
501 | sprintf(ebuf, "stat: %s: %s", device, strerror(errno)); | |
502 | return (-1); | |
503 | } | |
504 | majdev = major(statbuf.st_rdev); | |
505 | ||
506 | memset((int8_t *)&req, 0, sizeof(req)); | |
507 | req.dl_primitive = DL_HP_PPA_REQ; | |
508 | ||
509 | memset((int8_t *)buf, 0, sizeof(buf)); | |
510 | if (send_request(fd, (int8_t *)&req, sizeof(req), "hpppa", ebuf, 0) < 0 || | |
511 | recv_ack(fd, DL_HP_PPA_ACK_SIZE, "hpppa", (int8_t *)buf, ebuf) < 0) | |
512 | { | |
513 | return (-1); | |
514 | } | |
515 | ||
516 | ap = (dl_hp_ppa_ack_t *)buf; | |
517 | ip = (dl_hp_ppa_info_t *)((u_int8_t *)ap + ap->dl_offset); | |
518 | ||
519 | for (i = 0; i < ap->dl_count; i++) | |
520 | { | |
521 | if (ip->dl_mjr_num == majdev && ip->dl_instance_num == unit) | |
522 | break; | |
523 | ||
524 | ip = (dl_hp_ppa_info_t *)((u_int8_t *)ip + ip->dl_next_offset); | |
525 | } | |
526 | ||
527 | if (i == ap->dl_count) | |
528 | { | |
529 | sprintf(ebuf, "can't find PPA for %s", device); | |
530 | return (-1); | |
531 | } | |
532 | ||
533 | if (ip->dl_hdw_state == HDW_DEAD) | |
534 | { | |
535 | sprintf(ebuf, "%s: hardware state: DOWN\n", device); | |
536 | return (-1); | |
537 | } | |
538 | return ((int)ip->dl_ppa); | |
539 | } | |
540 | #endif | |
541 | ||
542 | #ifdef HAVE_HPUX9 | |
543 | /* | |
544 | * Under HP-UX 9, there is no good way to determine the ppa. | |
545 | * So punt and read it from /dev/kmem. | |
546 | */ | |
547 | static struct nlist nl[] = | |
548 | { | |
549 | #define NL_IFNET 0 | |
550 | { "ifnet" }, | |
551 | { "" } | |
552 | }; | |
553 | ||
554 | static int8_t path_vmunix[] = "/hp-ux"; | |
555 | ||
556 | /* | |
557 | * Determine ppa number that specifies ifname | |
558 | */ | |
559 | static int | |
560 | get_dlpi_ppa(register int fd, register const int8_t *ifname, register int unit, | |
561 | register int8_t *ebuf) | |
562 | { | |
563 | register const int8_t *cp; | |
564 | register int kd; | |
565 | void *addr; | |
566 | struct ifnet ifnet; | |
567 | int8_t if_name[sizeof(ifnet.if_name)], tifname[32]; | |
568 | ||
569 | cp = strrchr(ifname, '/'); | |
570 | if (cp != NULL) | |
571 | { | |
572 | ifname = cp + 1; | |
573 | } | |
574 | if (nlist(path_vmunix, &nl) < 0) | |
575 | { | |
576 | sprintf(ebuf, "nlist %s failed", path_vmunix); | |
577 | return (-1); | |
578 | } | |
579 | ||
580 | if (nl[NL_IFNET].n_value == 0) | |
581 | { | |
582 | sprintf(ebuf, "could't find %s kernel symbol", nl[NL_IFNET].n_name); | |
583 | return (-1); | |
584 | } | |
585 | ||
586 | kd = open("/dev/kmem", O_RDONLY); | |
587 | if (kd < 0) | |
588 | { | |
589 | sprintf(ebuf, "kmem open: %s", strerror(errno)); | |
590 | return (-1); | |
591 | } | |
592 | ||
593 | if (dlpi_kread(kd, nl[NL_IFNET].n_value, &addr, sizeof(addr), ebuf) < 0) | |
594 | { | |
595 | close(kd); | |
596 | return (-1); | |
597 | } | |
598 | for (; addr != NULL; addr = ifnet.if_next) | |
599 | { | |
600 | if (dlpi_kread(kd, (off_t)addr, &ifnet, sizeof(ifnet), ebuf) < 0 || | |
601 | dlpi_kread(kd, (off_t)ifnet.if_name, | |
602 | if_name, sizeof(if_name), ebuf) < 0) | |
603 | { | |
604 | close(kd); | |
605 | return (-1); | |
606 | } | |
607 | sprintf(tifname, "%.*s%d", | |
608 | (int)sizeof(if_name), if_name, ifnet.if_unit); | |
609 | if (strcmp(tifname, ifname) == 0) | |
610 | { | |
611 | return (ifnet.if_index); | |
612 | } | |
613 | } | |
614 | ||
615 | sprintf(ebuf, "Can't find %s", ifname); | |
616 | return (-1); | |
617 | } | |
618 | ||
619 | static int | |
620 | dlpi_kread(register int fd, register off_t addr, register void *buf, | |
621 | register u_int len, register int8_t *ebuf) | |
622 | { | |
623 | register int cc; | |
624 | ||
625 | if (lseek(fd, addr, SEEK_SET) < 0) | |
626 | { | |
627 | sprintf(ebuf, "lseek: %s", strerror(errno)); | |
628 | return (-1); | |
629 | } | |
630 | cc = read(fd, buf, len); | |
631 | if (cc < 0) | |
632 | { | |
633 | sprintf(ebuf, "read: %s", strerror(errno)); | |
634 | return (-1); | |
635 | } | |
636 | else if (cc != len) | |
637 | { | |
638 | sprintf(ebuf, "int16_t read (%d != %d)", cc, len); | |
639 | return (-1); | |
640 | } | |
641 | return (cc); | |
642 | } | |
643 | #endif | |
644 | ||
645 | #define ETHERADDRL 6 | |
646 | struct EnetHeaderInfo | |
647 | { | |
648 | struct libnet_ether_addr DestEtherAddr; | |
649 | u_int16_t EtherFrameType; | |
650 | }; | |
651 | ||
652 | ||
653 | int | |
654 | libnet_close_link(libnet_t *l) | |
655 | { | |
656 | if (close(l->fd) == 0) | |
657 | { | |
658 | free(l); | |
659 | return (1); | |
660 | } | |
661 | else | |
662 | { | |
663 | free(l); | |
664 | return (-1); | |
665 | } | |
666 | } | |
667 | ||
668 | #ifdef HAVE_HPUX11 | |
669 | int | |
670 | libnet_write_link(libnet_t *l, u_int8_t *packet, u_int32_t size) | |
671 | { | |
672 | struct strbuf data, ctl; | |
673 | dl_hp_rawdata_req_t *rdata; | |
674 | int c; | |
675 | ||
676 | if (l == NULL) | |
677 | { | |
678 | return (-1); | |
679 | } | |
680 | ||
681 | rdata = (dl_hp_rawdata_req_t *)ctlbuf; | |
682 | rdata->dl_primitive = DL_HP_RAWDATA_REQ; | |
683 | ||
684 | /* send it */ | |
685 | ctl.len = sizeof(dl_hp_rawdata_req_t); | |
686 | ctl.maxlen = sizeof(dl_hp_rawdata_req_t); | |
687 | ctl.buf = (int8_t *)rdata; | |
688 | ||
689 | data.maxlen = size; | |
690 | data.len = size; | |
691 | data.buf = packet; | |
692 | ||
693 | c = putmsg(l->fd, &ctl, &data, 0); | |
694 | if (c == -1) | |
695 | { | |
696 | snprintf(l->err_buf, LIBNET_ERRBUF_SIZE, | |
697 | "libnet_write_link(): %d bytes written (%s)\n", c, | |
698 | strerror(errno)); | |
699 | return (-1); | |
700 | } | |
701 | else | |
702 | { | |
703 | return (size); | |
704 | } | |
705 | } | |
706 | #else | |
707 | int | |
708 | libnet_write_link(libnet_t *l, u_int8_t *packet, u_int32_t size) | |
709 | { | |
710 | int c; | |
711 | struct strbuf data; | |
712 | ||
713 | if (l == NULL) | |
714 | { | |
715 | return (-1); | |
716 | } | |
717 | ||
718 | data.maxlen = size; | |
719 | data.len = size; | |
720 | data.buf = packet; | |
721 | ||
722 | c = putmsg(l->fd, NULL, &data, 0); | |
723 | if (c == -1) | |
724 | { | |
725 | snprintf(l->err_buf, LIBNET_ERRBUF_SIZE, | |
726 | "libnet_write_link: %d bytes written (%s)\n", c, | |
727 | strerror(errno)); | |
728 | return (-1); | |
729 | } | |
730 | else | |
731 | { | |
732 | return (size); | |
733 | } | |
734 | } | |
735 | #endif | |
736 | ||
737 | struct libnet_ether_addr * | |
738 | libnet_get_hwaddr(libnet_t *l) | |
739 | { | |
740 | int8_t buf[2048]; | |
741 | union DL_primitives *dlp; | |
742 | struct libnet_ether_addr *eap; | |
743 | ||
744 | if (l == NULL) | |
745 | { | |
746 | return (NULL); | |
747 | } | |
748 | ||
749 | dlp = (union DL_primitives *)buf; | |
750 | ||
751 | dlp->physaddr_req.dl_primitive = DL_PHYS_ADDR_REQ; | |
752 | dlp->physaddr_req.dl_addr_type = DL_CURR_PHYS_ADDR; | |
753 | ||
754 | if (send_request(l->fd, (int8_t *)dlp, DL_PHYS_ADDR_REQ_SIZE, "physaddr", | |
755 | l->err_buf, 0) < 0) | |
756 | { | |
757 | return (NULL); | |
758 | } | |
759 | if (recv_ack(l->fd, DL_PHYS_ADDR_ACK_SIZE, "physaddr", (int8_t *)dlp, | |
760 | l->err_buf) < 0) | |
761 | { | |
762 | return (NULL); | |
763 | } | |
764 | ||
765 | eap = (struct libnet_ether_addr *) | |
766 | ((int8_t *) dlp + dlp->physaddr_ack.dl_addr_offset); | |
767 | return (eap); | |
768 | } | |
769 | ||
770 | /* EOF */ |