| 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 */ |