The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 1993, 1994, 1995, 1996, 1997 |
| 3 | * The Regents of the University of California. All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that: (1) source code distributions |
| 7 | * retain the above copyright notice and this paragraph in its entirety, (2) |
| 8 | * distributions including binary code include the above copyright notice and |
| 9 | * this paragraph in its entirety in the documentation or other materials |
| 10 | * provided with the distribution, and (3) all advertising materials mentioning |
| 11 | * features or use of this software display the following acknowledgement: |
| 12 | * ``This product includes software developed by the University of California, |
| 13 | * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of |
| 14 | * the University nor the names of its contributors may be used to endorse |
| 15 | * or promote products derived from this software without specific prior |
| 16 | * written permission. |
| 17 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED |
| 18 | * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF |
| 19 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
| 20 | * |
| 21 | * This code contributed by Atanu Ghosh (atanu@cs.ucl.ac.uk), |
| 22 | * University College London, and subsequently modified by |
| 23 | * Guy Harris (guy@alum.mit.edu), Mark Pizzolato |
| 24 | * <List-tcpdump-workers@subscriptions.pizzolato.net>, |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 25 | * Mark C. Brown (mbrown@hp.com), and Sagun Shakya <Sagun.Shakya@Sun.COM>. |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 26 | */ |
| 27 | |
| 28 | /* |
| 29 | * Packet capture routine for DLPI under SunOS 5, HP-UX 9/10/11, and AIX. |
| 30 | * |
| 31 | * Notes: |
| 32 | * |
| 33 | * - The DLIOCRAW ioctl() is specific to SunOS. |
| 34 | * |
| 35 | * - There is a bug in bufmod(7) such that setting the snapshot |
| 36 | * length results in data being left of the front of the packet. |
| 37 | * |
| 38 | * - It might be desirable to use pfmod(7) to filter packets in the |
| 39 | * kernel when possible. |
| 40 | * |
| 41 | * - An older version of the HP-UX DLPI Programmer's Guide, which |
| 42 | * I think was advertised as the 10.20 version, used to be available |
| 43 | * at |
| 44 | * |
| 45 | * http://docs.hp.com/hpux/onlinedocs/B2355-90093/B2355-90093.html |
| 46 | * |
| 47 | * but is no longer available; it can still be found at |
| 48 | * |
| 49 | * http://h21007.www2.hp.com/dspp/files/unprotected/Drivers/Docs/Refs/B2355-90093.pdf |
| 50 | * |
| 51 | * in PDF form. |
| 52 | * |
| 53 | * - The HP-UX 10.x, 11.0, and 11i v1.6 version of the HP-UX DLPI |
| 54 | * Programmer's Guide, which I think was once advertised as the |
| 55 | * 11.00 version is available at |
| 56 | * |
| 57 | * http://docs.hp.com/en/B2355-90139/index.html |
| 58 | * |
| 59 | * - The HP-UX 11i v2 version of the HP-UX DLPI Programmer's Guide |
| 60 | * is available at |
| 61 | * |
| 62 | * http://docs.hp.com/en/B2355-90871/index.html |
| 63 | * |
| 64 | * - All of the HP documents describe raw-mode services, which are |
| 65 | * what we use if DL_HP_RAWDLS is defined. XXX - we use __hpux |
| 66 | * in some places to test for HP-UX, but use DL_HP_RAWDLS in |
| 67 | * other places; do we support any versions of HP-UX without |
| 68 | * DL_HP_RAWDLS? |
| 69 | */ |
| 70 | |
| 71 | #ifndef lint |
| 72 | static const char rcsid[] _U_ = |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 73 | "@(#) $Header: /tcpdump/master/libpcap/pcap-dlpi.c,v 1.128 2008-12-02 16:20:23 guy Exp $ (LBL)"; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 74 | #endif |
| 75 | |
| 76 | #ifdef HAVE_CONFIG_H |
| 77 | #include "config.h" |
| 78 | #endif |
| 79 | |
| 80 | #include <sys/types.h> |
| 81 | #include <sys/time.h> |
| 82 | #ifdef HAVE_SYS_BUFMOD_H |
| 83 | #include <sys/bufmod.h> |
| 84 | #endif |
| 85 | #include <sys/dlpi.h> |
| 86 | #ifdef HAVE_SYS_DLPI_EXT_H |
| 87 | #include <sys/dlpi_ext.h> |
| 88 | #endif |
| 89 | #ifdef HAVE_HPUX9 |
| 90 | #include <sys/socket.h> |
| 91 | #endif |
| 92 | #ifdef DL_HP_PPA_REQ |
| 93 | #include <sys/stat.h> |
| 94 | #endif |
| 95 | #include <sys/stream.h> |
| 96 | #if defined(HAVE_SOLARIS) && defined(HAVE_SYS_BUFMOD_H) |
| 97 | #include <sys/systeminfo.h> |
| 98 | #endif |
| 99 | |
| 100 | #ifdef HAVE_HPUX9 |
| 101 | #include <net/if.h> |
| 102 | #endif |
| 103 | |
| 104 | #include <ctype.h> |
| 105 | #ifdef HAVE_HPUX9 |
| 106 | #include <nlist.h> |
| 107 | #endif |
| 108 | #include <errno.h> |
| 109 | #include <fcntl.h> |
| 110 | #include <memory.h> |
| 111 | #include <stdio.h> |
| 112 | #include <stdlib.h> |
| 113 | #include <string.h> |
| 114 | #include <stropts.h> |
| 115 | #include <unistd.h> |
| 116 | |
| 117 | #ifdef HAVE_LIMITS_H |
| 118 | #include <limits.h> |
| 119 | #else |
| 120 | #define INT_MAX 2147483647 |
| 121 | #endif |
| 122 | |
| 123 | #include "pcap-int.h" |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 124 | #include "dlpisubs.h" |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 125 | |
| 126 | #ifdef HAVE_OS_PROTO_H |
| 127 | #include "os-proto.h" |
| 128 | #endif |
| 129 | |
| 130 | #ifndef PCAP_DEV_PREFIX |
| 131 | #ifdef _AIX |
| 132 | #define PCAP_DEV_PREFIX "/dev/dlpi" |
| 133 | #else |
| 134 | #define PCAP_DEV_PREFIX "/dev" |
| 135 | #endif |
| 136 | #endif |
| 137 | |
| 138 | #define MAXDLBUF 8192 |
| 139 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 140 | /* Forwards */ |
| 141 | static char *split_dname(char *, int *, char *); |
| 142 | static int dl_doattach(int, int, char *); |
| 143 | #ifdef DL_HP_RAWDLS |
| 144 | static int dl_dohpuxbind(int, char *); |
| 145 | #endif |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 146 | static int dlpromiscon(pcap_t *, bpf_u_int32); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 147 | static int dlbindreq(int, bpf_u_int32, char *); |
| 148 | static int dlbindack(int, char *, char *, int *); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 149 | static int dlokack(int, const char *, char *, char *); |
| 150 | static int dlinforeq(int, char *); |
| 151 | static int dlinfoack(int, char *, char *); |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 152 | |
| 153 | #ifdef HAVE_DLPI_PASSIVE |
| 154 | static void dlpassive(int, char *); |
| 155 | #endif |
| 156 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 157 | #ifdef DL_HP_RAWDLS |
| 158 | static int dlrawdatareq(int, const u_char *, int); |
| 159 | #endif |
| 160 | static int recv_ack(int, int, const char *, char *, char *, int *); |
| 161 | static char *dlstrerror(bpf_u_int32); |
| 162 | static char *dlprim(bpf_u_int32); |
| 163 | #if defined(HAVE_SOLARIS) && defined(HAVE_SYS_BUFMOD_H) |
| 164 | static char *get_release(bpf_u_int32 *, bpf_u_int32 *, bpf_u_int32 *); |
| 165 | #endif |
| 166 | static int send_request(int, char *, int, char *, char *); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 167 | #ifdef HAVE_HPUX9 |
| 168 | static int dlpi_kread(int, off_t, void *, u_int, char *); |
| 169 | #endif |
| 170 | #ifdef HAVE_DEV_DLPI |
| 171 | static int get_dlpi_ppa(int, const char *, int, char *); |
| 172 | #endif |
| 173 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 174 | /* XXX Needed by HP-UX (at least) */ |
| 175 | static bpf_u_int32 ctlbuf[MAXDLBUF]; |
| 176 | static struct strbuf ctl = { |
| 177 | MAXDLBUF, |
| 178 | 0, |
| 179 | (char *)ctlbuf |
| 180 | }; |
| 181 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 182 | /* |
| 183 | * Cast a buffer to "union DL_primitives" without provoking warnings |
| 184 | * from the compiler. |
| 185 | */ |
| 186 | #define MAKE_DL_PRIMITIVES(ptr) ((union DL_primitives *)(void *)(ptr)) |
| 187 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 188 | static int |
| 189 | pcap_read_dlpi(pcap_t *p, int cnt, pcap_handler callback, u_char *user) |
| 190 | { |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 191 | int cc; |
| 192 | u_char *bp; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 193 | int flags; |
| 194 | struct strbuf data; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 195 | |
| 196 | flags = 0; |
| 197 | cc = p->cc; |
| 198 | if (cc == 0) { |
| 199 | data.buf = (char *)p->buffer + p->offset; |
| 200 | data.maxlen = p->bufsize; |
| 201 | data.len = 0; |
| 202 | do { |
| 203 | /* |
| 204 | * Has "pcap_breakloop()" been called? |
| 205 | */ |
| 206 | if (p->break_loop) { |
| 207 | /* |
| 208 | * Yes - clear the flag that indicates |
| 209 | * that it has, and return -2 to |
| 210 | * indicate that we were told to |
| 211 | * break out of the loop. |
| 212 | */ |
| 213 | p->break_loop = 0; |
| 214 | return (-2); |
| 215 | } |
| 216 | /* |
| 217 | * XXX - check for the DLPI primitive, which |
| 218 | * would be DL_HP_RAWDATA_IND on HP-UX |
| 219 | * if we're in raw mode? |
| 220 | */ |
| 221 | if (getmsg(p->fd, &ctl, &data, &flags) < 0) { |
| 222 | /* Don't choke when we get ptraced */ |
| 223 | switch (errno) { |
| 224 | |
| 225 | case EINTR: |
| 226 | cc = 0; |
| 227 | continue; |
| 228 | |
| 229 | case EAGAIN: |
| 230 | return (0); |
| 231 | } |
| 232 | strlcpy(p->errbuf, pcap_strerror(errno), |
| 233 | sizeof(p->errbuf)); |
| 234 | return (-1); |
| 235 | } |
| 236 | cc = data.len; |
| 237 | } while (cc == 0); |
| 238 | bp = p->buffer + p->offset; |
| 239 | } else |
| 240 | bp = p->bp; |
| 241 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 242 | return (pcap_process_pkts(p, callback, user, cnt, bp, cc)); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 243 | } |
| 244 | |
| 245 | static int |
| 246 | pcap_inject_dlpi(pcap_t *p, const void *buf, size_t size) |
| 247 | { |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 248 | #ifdef DL_HP_RAWDLS |
| 249 | struct pcap_dlpi *pd = p->priv; |
| 250 | #endif |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 251 | int ret; |
| 252 | |
| 253 | #if defined(DLIOCRAW) |
| 254 | ret = write(p->fd, buf, size); |
| 255 | if (ret == -1) { |
| 256 | snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "send: %s", |
| 257 | pcap_strerror(errno)); |
| 258 | return (-1); |
| 259 | } |
| 260 | #elif defined(DL_HP_RAWDLS) |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 261 | if (pd->send_fd < 0) { |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 262 | snprintf(p->errbuf, PCAP_ERRBUF_SIZE, |
| 263 | "send: Output FD couldn't be opened"); |
| 264 | return (-1); |
| 265 | } |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 266 | ret = dlrawdatareq(pd->send_fd, buf, size); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 267 | if (ret == -1) { |
| 268 | snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "send: %s", |
| 269 | pcap_strerror(errno)); |
| 270 | return (-1); |
| 271 | } |
| 272 | /* |
| 273 | * putmsg() returns either 0 or -1; it doesn't indicate how |
| 274 | * many bytes were written (presumably they were all written |
| 275 | * or none of them were written). OpenBSD's pcap_inject() |
| 276 | * returns the number of bytes written, so, for API compatibility, |
| 277 | * we return the number of bytes we were told to write. |
| 278 | */ |
| 279 | ret = size; |
| 280 | #else /* no raw mode */ |
| 281 | /* |
| 282 | * XXX - this is a pain, because you might have to extract |
| 283 | * the address from the packet and use it in a DL_UNITDATA_REQ |
| 284 | * request. That would be dependent on the link-layer type. |
| 285 | * |
| 286 | * I also don't know what SAP you'd have to bind the descriptor |
| 287 | * to, or whether you'd need separate "receive" and "send" FDs, |
| 288 | * nor do I know whether you'd need different bindings for |
| 289 | * D/I/X Ethernet and 802.3, or for {FDDI,Token Ring} plus |
| 290 | * 802.2 and {FDDI,Token Ring} plus 802.2 plus SNAP. |
| 291 | * |
| 292 | * So, for now, we just return a "you can't send" indication, |
| 293 | * and leave it up to somebody with a DLPI-based system lacking |
| 294 | * both DLIOCRAW and DL_HP_RAWDLS to supply code to implement |
| 295 | * packet transmission on that system. If they do, they should |
| 296 | * send it to us - but should not send us code that assumes |
| 297 | * Ethernet; if the code doesn't work on non-Ethernet interfaces, |
| 298 | * it should check "p->linktype" and reject the send request if |
| 299 | * it's anything other than DLT_EN10MB. |
| 300 | */ |
| 301 | strlcpy(p->errbuf, "send: Not supported on this version of this OS", |
| 302 | PCAP_ERRBUF_SIZE); |
| 303 | ret = -1; |
| 304 | #endif /* raw mode */ |
| 305 | return (ret); |
| 306 | } |
| 307 | |
| 308 | #ifndef DL_IPATM |
| 309 | #define DL_IPATM 0x12 /* ATM Classical IP interface */ |
| 310 | #endif |
| 311 | |
| 312 | #ifdef HAVE_SOLARIS |
| 313 | /* |
| 314 | * For SunATM. |
| 315 | */ |
| 316 | #ifndef A_GET_UNITS |
| 317 | #define A_GET_UNITS (('A'<<8)|118) |
| 318 | #endif /* A_GET_UNITS */ |
| 319 | #ifndef A_PROMISCON_REQ |
| 320 | #define A_PROMISCON_REQ (('A'<<8)|121) |
| 321 | #endif /* A_PROMISCON_REQ */ |
| 322 | #endif /* HAVE_SOLARIS */ |
| 323 | |
| 324 | static void |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 325 | pcap_cleanup_dlpi(pcap_t *p) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 326 | { |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 327 | #ifdef DL_HP_RAWDLS |
| 328 | struct pcap_dlpi *pd = p->priv; |
| 329 | |
| 330 | if (pd->send_fd >= 0) { |
| 331 | close(pd->send_fd); |
| 332 | pd->send_fd = -1; |
| 333 | } |
| 334 | #endif |
| 335 | pcap_cleanup_live_common(p); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 336 | } |
| 337 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 338 | static int |
| 339 | pcap_activate_dlpi(pcap_t *p) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 340 | { |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 341 | #ifdef DL_HP_RAWDLS |
| 342 | struct pcap_dlpi *pd = p->priv; |
| 343 | #endif |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 344 | register char *cp; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 345 | int ppa; |
| 346 | #ifdef HAVE_SOLARIS |
| 347 | int isatm = 0; |
| 348 | #endif |
| 349 | register dl_info_ack_t *infop; |
| 350 | #ifdef HAVE_SYS_BUFMOD_H |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 351 | bpf_u_int32 ss; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 352 | #ifdef HAVE_SOLARIS |
| 353 | register char *release; |
| 354 | bpf_u_int32 osmajor, osminor, osmicro; |
| 355 | #endif |
| 356 | #endif |
| 357 | bpf_u_int32 buf[MAXDLBUF]; |
| 358 | char dname[100]; |
| 359 | #ifndef HAVE_DEV_DLPI |
| 360 | char dname2[100]; |
| 361 | #endif |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 362 | int status = PCAP_ERROR; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 363 | |
| 364 | #ifdef HAVE_DEV_DLPI |
| 365 | /* |
| 366 | ** Remove any "/dev/" on the front of the device. |
| 367 | */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 368 | cp = strrchr(p->opt.source, '/'); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 369 | if (cp == NULL) |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 370 | strlcpy(dname, p->opt.source, sizeof(dname)); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 371 | else |
| 372 | strlcpy(dname, cp + 1, sizeof(dname)); |
| 373 | |
| 374 | /* |
| 375 | * Split the device name into a device type name and a unit number; |
| 376 | * chop off the unit number, so "dname" is just a device type name. |
| 377 | */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 378 | cp = split_dname(dname, &ppa, p->errbuf); |
| 379 | if (cp == NULL) { |
| 380 | status = PCAP_ERROR_NO_SUCH_DEVICE; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 381 | goto bad; |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 382 | } |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 383 | *cp = '\0'; |
| 384 | |
| 385 | /* |
| 386 | * Use "/dev/dlpi" as the device. |
| 387 | * |
| 388 | * XXX - HP's DLPI Programmer's Guide for HP-UX 11.00 says that |
| 389 | * the "dl_mjr_num" field is for the "major number of interface |
| 390 | * driver"; that's the major of "/dev/dlpi" on the system on |
| 391 | * which I tried this, but there may be DLPI devices that |
| 392 | * use a different driver, in which case we may need to |
| 393 | * search "/dev" for the appropriate device with that major |
| 394 | * device number, rather than hardwiring "/dev/dlpi". |
| 395 | */ |
| 396 | cp = "/dev/dlpi"; |
| 397 | if ((p->fd = open(cp, O_RDWR)) < 0) { |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 398 | if (errno == EPERM || errno == EACCES) |
| 399 | status = PCAP_ERROR_PERM_DENIED; |
| 400 | snprintf(p->errbuf, PCAP_ERRBUF_SIZE, |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 401 | "%s: %s", cp, pcap_strerror(errno)); |
| 402 | goto bad; |
| 403 | } |
| 404 | |
| 405 | #ifdef DL_HP_RAWDLS |
| 406 | /* |
| 407 | * XXX - HP-UX 10.20 and 11.xx don't appear to support sending and |
| 408 | * receiving packets on the same descriptor - you need separate |
| 409 | * descriptors for sending and receiving, bound to different SAPs. |
| 410 | * |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 411 | * If the open fails, we just leave -1 in "pd->send_fd" and reject |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 412 | * attempts to send packets, just as if, in pcap-bpf.c, we fail |
| 413 | * to open the BPF device for reading and writing, we just try |
| 414 | * to open it for reading only and, if that succeeds, just let |
| 415 | * the send attempts fail. |
| 416 | */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 417 | pd->send_fd = open(cp, O_RDWR); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 418 | #endif |
| 419 | |
| 420 | /* |
| 421 | * Get a table of all PPAs for that device, and search that |
| 422 | * table for the specified device type name and unit number. |
| 423 | */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 424 | ppa = get_dlpi_ppa(p->fd, dname, ppa, p->errbuf); |
| 425 | if (ppa < 0) { |
| 426 | status = ppa; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 427 | goto bad; |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 428 | } |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 429 | #else |
| 430 | /* |
| 431 | * If the device name begins with "/", assume it begins with |
| 432 | * the pathname of the directory containing the device to open; |
| 433 | * otherwise, concatenate the device directory name and the |
| 434 | * device name. |
| 435 | */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 436 | if (*p->opt.source == '/') |
| 437 | strlcpy(dname, p->opt.source, sizeof(dname)); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 438 | else |
| 439 | snprintf(dname, sizeof(dname), "%s/%s", PCAP_DEV_PREFIX, |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 440 | p->opt.source); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 441 | |
| 442 | /* |
| 443 | * Get the unit number, and a pointer to the end of the device |
| 444 | * type name. |
| 445 | */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 446 | cp = split_dname(dname, &ppa, p->errbuf); |
| 447 | if (cp == NULL) { |
| 448 | status = PCAP_ERROR_NO_SUCH_DEVICE; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 449 | goto bad; |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 450 | } |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 451 | |
| 452 | /* |
| 453 | * Make a copy of the device pathname, and then remove the unit |
| 454 | * number from the device pathname. |
| 455 | */ |
| 456 | strlcpy(dname2, dname, sizeof(dname)); |
| 457 | *cp = '\0'; |
| 458 | |
| 459 | /* Try device without unit number */ |
| 460 | if ((p->fd = open(dname, O_RDWR)) < 0) { |
| 461 | if (errno != ENOENT) { |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 462 | if (errno == EPERM || errno == EACCES) |
| 463 | status = PCAP_ERROR_PERM_DENIED; |
| 464 | snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "%s: %s", dname, |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 465 | pcap_strerror(errno)); |
| 466 | goto bad; |
| 467 | } |
| 468 | |
| 469 | /* Try again with unit number */ |
| 470 | if ((p->fd = open(dname2, O_RDWR)) < 0) { |
| 471 | if (errno == ENOENT) { |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 472 | status = PCAP_ERROR_NO_SUCH_DEVICE; |
| 473 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 474 | /* |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 475 | * We provide an error message even |
| 476 | * for this error, for diagnostic |
| 477 | * purposes (so that, for example, |
| 478 | * the app can show the message if the |
| 479 | * user requests it). |
| 480 | * |
| 481 | * In it, we just report "No DLPI device |
| 482 | * found" with the device name, so people |
| 483 | * don't get confused and think, for example, |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 484 | * that if they can't capture on "lo0" |
| 485 | * on Solaris the fix is to change libpcap |
| 486 | * (or the application that uses it) to |
| 487 | * look for something other than "/dev/lo0", |
| 488 | * as the fix is to look for an operating |
| 489 | * system other than Solaris - you just |
| 490 | * *can't* capture on a loopback interface |
| 491 | * on Solaris, the lack of a DLPI device |
| 492 | * for the loopback interface is just a |
| 493 | * symptom of that inability. |
| 494 | */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 495 | snprintf(p->errbuf, PCAP_ERRBUF_SIZE, |
| 496 | "%s: No DLPI device found", p->opt.source); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 497 | } else { |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 498 | if (errno == EPERM || errno == EACCES) |
| 499 | status = PCAP_ERROR_PERM_DENIED; |
| 500 | snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "%s: %s", |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 501 | dname2, pcap_strerror(errno)); |
| 502 | } |
| 503 | goto bad; |
| 504 | } |
| 505 | /* XXX Assume unit zero */ |
| 506 | ppa = 0; |
| 507 | } |
| 508 | #endif |
| 509 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 510 | /* |
| 511 | ** Attach if "style 2" provider |
| 512 | */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 513 | if (dlinforeq(p->fd, p->errbuf) < 0 || |
| 514 | dlinfoack(p->fd, (char *)buf, p->errbuf) < 0) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 515 | goto bad; |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 516 | infop = &(MAKE_DL_PRIMITIVES(buf))->info_ack; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 517 | #ifdef HAVE_SOLARIS |
| 518 | if (infop->dl_mac_type == DL_IPATM) |
| 519 | isatm = 1; |
| 520 | #endif |
| 521 | if (infop->dl_provider_style == DL_STYLE2) { |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 522 | status = dl_doattach(p->fd, ppa, p->errbuf); |
| 523 | if (status < 0) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 524 | goto bad; |
| 525 | #ifdef DL_HP_RAWDLS |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 526 | if (pd->send_fd >= 0) { |
| 527 | if (dl_doattach(pd->send_fd, ppa, p->errbuf) < 0) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 528 | goto bad; |
| 529 | } |
| 530 | #endif |
| 531 | } |
| 532 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 533 | if (p->opt.rfmon) { |
| 534 | /* |
| 535 | * This device exists, but we don't support monitor mode |
| 536 | * any platforms that support DLPI. |
| 537 | */ |
| 538 | status = PCAP_ERROR_RFMON_NOTSUP; |
| 539 | goto bad; |
| 540 | } |
| 541 | |
| 542 | #ifdef HAVE_DLPI_PASSIVE |
| 543 | /* |
| 544 | * Enable Passive mode to be able to capture on aggregated link. |
| 545 | * Not supported in all Solaris versions. |
| 546 | */ |
| 547 | dlpassive(p->fd, p->errbuf); |
| 548 | #endif |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 549 | /* |
| 550 | ** Bind (defer if using HP-UX 9 or HP-UX 10.20 or later, totally |
| 551 | ** skip if using SINIX) |
| 552 | */ |
| 553 | #if !defined(HAVE_HPUX9) && !defined(HAVE_HPUX10_20_OR_LATER) && !defined(sinix) |
| 554 | #ifdef _AIX |
| 555 | /* |
| 556 | ** AIX. |
| 557 | ** According to IBM's AIX Support Line, the dl_sap value |
| 558 | ** should not be less than 0x600 (1536) for standard Ethernet. |
| 559 | ** However, we seem to get DL_BADADDR - "DLSAP addr in improper |
| 560 | ** format or invalid" - errors if we use 1537 on the "tr0" |
| 561 | ** device, which, given that its name starts with "tr" and that |
| 562 | ** it's IBM, probably means a Token Ring device. (Perhaps we |
| 563 | ** need to use 1537 on "/dev/dlpi/en" because that device is for |
| 564 | ** D/I/X Ethernet, the "SAP" is actually an Ethernet type, and |
| 565 | ** it rejects invalid Ethernet types.) |
| 566 | ** |
| 567 | ** So if 1537 fails, we try 2, as Hyung Sik Yoon of IBM Korea |
| 568 | ** says that works on Token Ring (he says that 0 does *not* |
| 569 | ** work; perhaps that's considered an invalid LLC SAP value - I |
| 570 | ** assume the SAP value in a DLPI bind is an LLC SAP for network |
| 571 | ** types that use 802.2 LLC). |
| 572 | */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 573 | if ((dlbindreq(p->fd, 1537, p->errbuf) < 0 && |
| 574 | dlbindreq(p->fd, 2, p->errbuf) < 0) || |
| 575 | dlbindack(p->fd, (char *)buf, p->errbuf, NULL) < 0) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 576 | goto bad; |
| 577 | #elif defined(DL_HP_RAWDLS) |
| 578 | /* |
| 579 | ** HP-UX 10.0x and 10.1x. |
| 580 | */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 581 | if (dl_dohpuxbind(p->fd, p->errbuf) < 0) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 582 | goto bad; |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 583 | if (pd->send_fd >= 0) { |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 584 | /* |
| 585 | ** XXX - if this fails, just close send_fd and |
| 586 | ** set it to -1, so that you can't send but can |
| 587 | ** still receive? |
| 588 | */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 589 | if (dl_dohpuxbind(pd->send_fd, p->errbuf) < 0) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 590 | goto bad; |
| 591 | } |
| 592 | #else /* neither AIX nor HP-UX */ |
| 593 | /* |
| 594 | ** Not Sinix, and neither AIX nor HP-UX - Solaris, and any other |
| 595 | ** OS using DLPI. |
| 596 | **/ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 597 | if (dlbindreq(p->fd, 0, p->errbuf) < 0 || |
| 598 | dlbindack(p->fd, (char *)buf, p->errbuf, NULL) < 0) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 599 | goto bad; |
| 600 | #endif /* AIX vs. HP-UX vs. other */ |
| 601 | #endif /* !HP-UX 9 and !HP-UX 10.20 or later and !SINIX */ |
| 602 | |
| 603 | #ifdef HAVE_SOLARIS |
| 604 | if (isatm) { |
| 605 | /* |
| 606 | ** Have to turn on some special ATM promiscuous mode |
| 607 | ** for SunATM. |
| 608 | ** Do *NOT* turn regular promiscuous mode on; it doesn't |
| 609 | ** help, and may break things. |
| 610 | */ |
| 611 | if (strioctl(p->fd, A_PROMISCON_REQ, 0, NULL) < 0) { |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 612 | snprintf(p->errbuf, PCAP_ERRBUF_SIZE, |
| 613 | "A_PROMISCON_REQ: %s", pcap_strerror(errno)); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 614 | goto bad; |
| 615 | } |
| 616 | } else |
| 617 | #endif |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 618 | if (p->opt.promisc) { |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 619 | /* |
| 620 | ** Enable promiscuous (not necessary on send FD) |
| 621 | */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 622 | status = dlpromiscon(p, DL_PROMISC_PHYS); |
| 623 | if (status < 0) { |
| 624 | if (status == PCAP_ERROR_PERM_DENIED) |
| 625 | status = PCAP_ERROR_PROMISC_PERM_DENIED; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 626 | goto bad; |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 627 | } |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 628 | |
| 629 | /* |
| 630 | ** Try to enable multicast (you would have thought |
| 631 | ** promiscuous would be sufficient). (Skip if using |
| 632 | ** HP-UX or SINIX) (Not necessary on send FD) |
| 633 | */ |
| 634 | #if !defined(__hpux) && !defined(sinix) |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 635 | status = dlpromiscon(p, DL_PROMISC_MULTI); |
| 636 | if (status < 0) |
| 637 | status = PCAP_WARNING; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 638 | #endif |
| 639 | } |
| 640 | /* |
| 641 | ** Try to enable SAP promiscuity (when not in promiscuous mode |
| 642 | ** when using HP-UX, when not doing SunATM on Solaris, and never |
| 643 | ** under SINIX) (Not necessary on send FD) |
| 644 | */ |
| 645 | #ifndef sinix |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 646 | #if defined(__hpux) |
| 647 | /* HP-UX - only do this when not in promiscuous mode */ |
| 648 | if (!p->opt.promisc) { |
| 649 | #elif defined(HAVE_SOLARIS) |
| 650 | /* Solaris - don't do this on SunATM devices */ |
| 651 | if (!isatm) { |
| 652 | #else |
| 653 | /* Everything else (except for SINIX) - always do this */ |
| 654 | { |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 655 | #endif |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 656 | status = dlpromiscon(p, DL_PROMISC_SAP); |
| 657 | if (status < 0) { |
| 658 | /* |
| 659 | * Not fatal, since the DL_PROMISC_PHYS mode worked. |
| 660 | * Report it as a warning, however. |
| 661 | */ |
| 662 | if (p->opt.promisc) |
| 663 | status = PCAP_WARNING; |
| 664 | else |
| 665 | goto bad; |
| 666 | } |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 667 | } |
| 668 | #endif /* sinix */ |
| 669 | |
| 670 | /* |
| 671 | ** HP-UX 9, and HP-UX 10.20 or later, must bind after setting |
| 672 | ** promiscuous options. |
| 673 | */ |
| 674 | #if defined(HAVE_HPUX9) || defined(HAVE_HPUX10_20_OR_LATER) |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 675 | if (dl_dohpuxbind(p->fd, p->errbuf) < 0) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 676 | goto bad; |
| 677 | /* |
| 678 | ** We don't set promiscuous mode on the send FD, but we'll defer |
| 679 | ** binding it anyway, just to keep the HP-UX 9/10.20 or later |
| 680 | ** code together. |
| 681 | */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 682 | if (pd->send_fd >= 0) { |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 683 | /* |
| 684 | ** XXX - if this fails, just close send_fd and |
| 685 | ** set it to -1, so that you can't send but can |
| 686 | ** still receive? |
| 687 | */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 688 | if (dl_dohpuxbind(pd->send_fd, p->errbuf) < 0) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 689 | goto bad; |
| 690 | } |
| 691 | #endif |
| 692 | |
| 693 | /* |
| 694 | ** Determine link type |
| 695 | ** XXX - get SAP length and address length as well, for use |
| 696 | ** when sending packets. |
| 697 | */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 698 | if (dlinforeq(p->fd, p->errbuf) < 0 || |
| 699 | dlinfoack(p->fd, (char *)buf, p->errbuf) < 0) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 700 | goto bad; |
| 701 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 702 | infop = &(MAKE_DL_PRIMITIVES(buf))->info_ack; |
| 703 | if (pcap_process_mactype(p, infop->dl_mac_type) != 0) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 704 | goto bad; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 705 | |
| 706 | #ifdef DLIOCRAW |
| 707 | /* |
| 708 | ** This is a non standard SunOS hack to get the full raw link-layer |
| 709 | ** header. |
| 710 | */ |
| 711 | if (strioctl(p->fd, DLIOCRAW, 0, NULL) < 0) { |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 712 | snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "DLIOCRAW: %s", |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 713 | pcap_strerror(errno)); |
| 714 | goto bad; |
| 715 | } |
| 716 | #endif |
| 717 | |
| 718 | #ifdef HAVE_SYS_BUFMOD_H |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 719 | ss = p->snapshot; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 720 | |
| 721 | /* |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 722 | ** There is a bug in bufmod(7). When dealing with messages of |
| 723 | ** less than snaplen size it strips data from the beginning not |
| 724 | ** the end. |
| 725 | ** |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 726 | ** This bug is fixed in 5.3.2. Also, there is a patch available. |
| 727 | ** Ask for bugid 1149065. |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 728 | */ |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 729 | #ifdef HAVE_SOLARIS |
| 730 | release = get_release(&osmajor, &osminor, &osmicro); |
| 731 | if (osmajor == 5 && (osminor <= 2 || (osminor == 3 && osmicro < 2)) && |
| 732 | getenv("BUFMOD_FIXED") == NULL) { |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 733 | snprintf(p->errbuf, PCAP_ERRBUF_SIZE, |
| 734 | "WARNING: bufmod is broken in SunOS %s; ignoring snaplen.", |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 735 | release); |
| 736 | ss = 0; |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 737 | status = PCAP_WARNING; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 738 | } |
| 739 | #endif |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 740 | |
| 741 | /* Push and configure bufmod. */ |
| 742 | if (pcap_conf_bufmod(p, ss) != 0) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 743 | goto bad; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 744 | #endif |
| 745 | |
| 746 | /* |
| 747 | ** As the last operation flush the read side. |
| 748 | */ |
| 749 | if (ioctl(p->fd, I_FLUSH, FLUSHR) != 0) { |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 750 | snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "FLUSHR: %s", |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 751 | pcap_strerror(errno)); |
| 752 | goto bad; |
| 753 | } |
| 754 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 755 | /* Allocate data buffer. */ |
| 756 | if (pcap_alloc_databuf(p) != 0) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 757 | goto bad; |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 758 | |
| 759 | /* Success - but perhaps with a warning */ |
| 760 | if (status < 0) |
| 761 | status = 0; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 762 | |
| 763 | /* |
| 764 | * "p->fd" is an FD for a STREAMS device, so "select()" and |
| 765 | * "poll()" should work on it. |
| 766 | */ |
| 767 | p->selectable_fd = p->fd; |
| 768 | |
| 769 | p->read_op = pcap_read_dlpi; |
| 770 | p->inject_op = pcap_inject_dlpi; |
| 771 | p->setfilter_op = install_bpf_program; /* no kernel filtering */ |
| 772 | p->setdirection_op = NULL; /* Not implemented.*/ |
| 773 | p->set_datalink_op = NULL; /* can't change data link type */ |
| 774 | p->getnonblock_op = pcap_getnonblock_fd; |
| 775 | p->setnonblock_op = pcap_setnonblock_fd; |
| 776 | p->stats_op = pcap_stats_dlpi; |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 777 | p->cleanup_op = pcap_cleanup_dlpi; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 778 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 779 | return (status); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 780 | bad: |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 781 | pcap_cleanup_dlpi(p); |
| 782 | return (status); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 783 | } |
| 784 | |
| 785 | /* |
| 786 | * Split a device name into a device type name and a unit number; |
| 787 | * return the a pointer to the beginning of the unit number, which |
| 788 | * is the end of the device type name, and set "*unitp" to the unit |
| 789 | * number. |
| 790 | * |
| 791 | * Returns NULL on error, and fills "ebuf" with an error message. |
| 792 | */ |
| 793 | static char * |
| 794 | split_dname(char *device, int *unitp, char *ebuf) |
| 795 | { |
| 796 | char *cp; |
| 797 | char *eos; |
| 798 | long unit; |
| 799 | |
| 800 | /* |
| 801 | * Look for a number at the end of the device name string. |
| 802 | */ |
| 803 | cp = device + strlen(device) - 1; |
| 804 | if (*cp < '0' || *cp > '9') { |
| 805 | snprintf(ebuf, PCAP_ERRBUF_SIZE, "%s missing unit number", |
| 806 | device); |
| 807 | return (NULL); |
| 808 | } |
| 809 | |
| 810 | /* Digits at end of string are unit number */ |
| 811 | while (cp-1 >= device && *(cp-1) >= '0' && *(cp-1) <= '9') |
| 812 | cp--; |
| 813 | |
| 814 | errno = 0; |
| 815 | unit = strtol(cp, &eos, 10); |
| 816 | if (*eos != '\0') { |
| 817 | snprintf(ebuf, PCAP_ERRBUF_SIZE, "%s bad unit number", device); |
| 818 | return (NULL); |
| 819 | } |
| 820 | if (errno == ERANGE || unit > INT_MAX) { |
| 821 | snprintf(ebuf, PCAP_ERRBUF_SIZE, "%s unit number too large", |
| 822 | device); |
| 823 | return (NULL); |
| 824 | } |
| 825 | if (unit < 0) { |
| 826 | snprintf(ebuf, PCAP_ERRBUF_SIZE, "%s unit number is negative", |
| 827 | device); |
| 828 | return (NULL); |
| 829 | } |
| 830 | *unitp = (int)unit; |
| 831 | return (cp); |
| 832 | } |
| 833 | |
| 834 | static int |
| 835 | dl_doattach(int fd, int ppa, char *ebuf) |
| 836 | { |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 837 | dl_attach_req_t req; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 838 | bpf_u_int32 buf[MAXDLBUF]; |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 839 | int err; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 840 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 841 | req.dl_primitive = DL_ATTACH_REQ; |
| 842 | req.dl_ppa = ppa; |
| 843 | if (send_request(fd, (char *)&req, sizeof(req), "attach", ebuf) < 0) |
| 844 | return (PCAP_ERROR); |
| 845 | |
| 846 | err = dlokack(fd, "attach", (char *)buf, ebuf); |
| 847 | if (err < 0) |
| 848 | return (err); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 849 | return (0); |
| 850 | } |
| 851 | |
| 852 | #ifdef DL_HP_RAWDLS |
| 853 | static int |
| 854 | dl_dohpuxbind(int fd, char *ebuf) |
| 855 | { |
| 856 | int hpsap; |
| 857 | int uerror; |
| 858 | bpf_u_int32 buf[MAXDLBUF]; |
| 859 | |
| 860 | /* |
| 861 | * XXX - we start at 22 because we used to use only 22, but |
| 862 | * that was just because that was the value used in some |
| 863 | * sample code from HP. With what value *should* we start? |
| 864 | * Does it matter, given that we're enabling SAP promiscuity |
| 865 | * on the input FD? |
| 866 | */ |
| 867 | hpsap = 22; |
| 868 | for (;;) { |
| 869 | if (dlbindreq(fd, hpsap, ebuf) < 0) |
| 870 | return (-1); |
| 871 | if (dlbindack(fd, (char *)buf, ebuf, &uerror) >= 0) |
| 872 | break; |
| 873 | /* |
| 874 | * For any error other than a UNIX EBUSY, give up. |
| 875 | */ |
| 876 | if (uerror != EBUSY) { |
| 877 | /* |
| 878 | * dlbindack() has already filled in ebuf for |
| 879 | * this error. |
| 880 | */ |
| 881 | return (-1); |
| 882 | } |
| 883 | |
| 884 | /* |
| 885 | * For EBUSY, try the next SAP value; that means that |
| 886 | * somebody else is using that SAP. Clear ebuf so |
| 887 | * that application doesn't report the "Device busy" |
| 888 | * error as a warning. |
| 889 | */ |
| 890 | *ebuf = '\0'; |
| 891 | hpsap++; |
| 892 | if (hpsap > 100) { |
| 893 | strlcpy(ebuf, |
| 894 | "All SAPs from 22 through 100 are in use", |
| 895 | PCAP_ERRBUF_SIZE); |
| 896 | return (-1); |
| 897 | } |
| 898 | } |
| 899 | return (0); |
| 900 | } |
| 901 | #endif |
| 902 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 903 | #define STRINGIFY(n) #n |
| 904 | |
| 905 | static int |
| 906 | dlpromiscon(pcap_t *p, bpf_u_int32 level) |
| 907 | { |
| 908 | dl_promiscon_req_t req; |
| 909 | bpf_u_int32 buf[MAXDLBUF]; |
| 910 | int err; |
| 911 | |
| 912 | req.dl_primitive = DL_PROMISCON_REQ; |
| 913 | req.dl_level = level; |
| 914 | if (send_request(p->fd, (char *)&req, sizeof(req), "promiscon", |
| 915 | p->errbuf) < 0) |
| 916 | return (PCAP_ERROR); |
| 917 | err = dlokack(p->fd, "promiscon" STRINGIFY(level), (char *)buf, |
| 918 | p->errbuf); |
| 919 | if (err < 0) |
| 920 | return (err); |
| 921 | return (0); |
| 922 | } |
| 923 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 924 | int |
| 925 | pcap_platform_finddevs(pcap_if_t **alldevsp, char *errbuf) |
| 926 | { |
| 927 | #ifdef HAVE_SOLARIS |
| 928 | int fd; |
| 929 | union { |
| 930 | u_int nunits; |
| 931 | char pad[516]; /* XXX - must be at least 513; is 516 |
| 932 | in "atmgetunits" */ |
| 933 | } buf; |
| 934 | char baname[2+1+1]; |
| 935 | u_int i; |
| 936 | |
| 937 | /* |
| 938 | * We may have to do special magic to get ATM devices. |
| 939 | */ |
| 940 | if ((fd = open("/dev/ba", O_RDWR)) < 0) { |
| 941 | /* |
| 942 | * We couldn't open the "ba" device. |
| 943 | * For now, just give up; perhaps we should |
| 944 | * return an error if the problem is neither |
| 945 | * a "that device doesn't exist" error (ENOENT, |
| 946 | * ENXIO, etc.) or a "you're not allowed to do |
| 947 | * that" error (EPERM, EACCES). |
| 948 | */ |
| 949 | return (0); |
| 950 | } |
| 951 | |
| 952 | if (strioctl(fd, A_GET_UNITS, sizeof(buf), (char *)&buf) < 0) { |
| 953 | snprintf(errbuf, PCAP_ERRBUF_SIZE, "A_GET_UNITS: %s", |
| 954 | pcap_strerror(errno)); |
| 955 | return (-1); |
| 956 | } |
| 957 | for (i = 0; i < buf.nunits; i++) { |
| 958 | snprintf(baname, sizeof baname, "ba%u", i); |
| 959 | if (pcap_add_if(alldevsp, baname, 0, NULL, errbuf) < 0) |
| 960 | return (-1); |
| 961 | } |
| 962 | #endif |
| 963 | |
| 964 | return (0); |
| 965 | } |
| 966 | |
| 967 | static int |
| 968 | send_request(int fd, char *ptr, int len, char *what, char *ebuf) |
| 969 | { |
| 970 | struct strbuf ctl; |
| 971 | int flags; |
| 972 | |
| 973 | ctl.maxlen = 0; |
| 974 | ctl.len = len; |
| 975 | ctl.buf = ptr; |
| 976 | |
| 977 | flags = 0; |
| 978 | if (putmsg(fd, &ctl, (struct strbuf *) NULL, flags) < 0) { |
| 979 | snprintf(ebuf, PCAP_ERRBUF_SIZE, |
| 980 | "send_request: putmsg \"%s\": %s", |
| 981 | what, pcap_strerror(errno)); |
| 982 | return (-1); |
| 983 | } |
| 984 | return (0); |
| 985 | } |
| 986 | |
| 987 | static int |
| 988 | recv_ack(int fd, int size, const char *what, char *bufp, char *ebuf, int *uerror) |
| 989 | { |
| 990 | union DL_primitives *dlp; |
| 991 | struct strbuf ctl; |
| 992 | int flags; |
| 993 | |
| 994 | /* |
| 995 | * Clear out "*uerror", so it's only set for DL_ERROR_ACK/DL_SYSERR, |
| 996 | * making that the only place where EBUSY is treated specially. |
| 997 | */ |
| 998 | if (uerror != NULL) |
| 999 | *uerror = 0; |
| 1000 | |
| 1001 | ctl.maxlen = MAXDLBUF; |
| 1002 | ctl.len = 0; |
| 1003 | ctl.buf = bufp; |
| 1004 | |
| 1005 | flags = 0; |
| 1006 | if (getmsg(fd, &ctl, (struct strbuf*)NULL, &flags) < 0) { |
| 1007 | snprintf(ebuf, PCAP_ERRBUF_SIZE, "recv_ack: %s getmsg: %s", |
| 1008 | what, pcap_strerror(errno)); |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 1009 | return (PCAP_ERROR); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1010 | } |
| 1011 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 1012 | dlp = MAKE_DL_PRIMITIVES(ctl.buf); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1013 | switch (dlp->dl_primitive) { |
| 1014 | |
| 1015 | case DL_INFO_ACK: |
| 1016 | case DL_BIND_ACK: |
| 1017 | case DL_OK_ACK: |
| 1018 | #ifdef DL_HP_PPA_ACK |
| 1019 | case DL_HP_PPA_ACK: |
| 1020 | #endif |
| 1021 | /* These are OK */ |
| 1022 | break; |
| 1023 | |
| 1024 | case DL_ERROR_ACK: |
| 1025 | switch (dlp->error_ack.dl_errno) { |
| 1026 | |
| 1027 | case DL_SYSERR: |
| 1028 | if (uerror != NULL) |
| 1029 | *uerror = dlp->error_ack.dl_unix_errno; |
| 1030 | snprintf(ebuf, PCAP_ERRBUF_SIZE, |
| 1031 | "recv_ack: %s: UNIX error - %s", |
| 1032 | what, pcap_strerror(dlp->error_ack.dl_unix_errno)); |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 1033 | if (dlp->error_ack.dl_unix_errno == EPERM || |
| 1034 | dlp->error_ack.dl_unix_errno == EACCES) |
| 1035 | return (PCAP_ERROR_PERM_DENIED); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1036 | break; |
| 1037 | |
| 1038 | default: |
| 1039 | snprintf(ebuf, PCAP_ERRBUF_SIZE, "recv_ack: %s: %s", |
| 1040 | what, dlstrerror(dlp->error_ack.dl_errno)); |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 1041 | if (dlp->error_ack.dl_errno == DL_BADPPA) |
| 1042 | return (PCAP_ERROR_NO_SUCH_DEVICE); |
| 1043 | else if (dlp->error_ack.dl_errno == DL_ACCESS) |
| 1044 | return (PCAP_ERROR_PERM_DENIED); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1045 | break; |
| 1046 | } |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 1047 | return (PCAP_ERROR); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1048 | |
| 1049 | default: |
| 1050 | snprintf(ebuf, PCAP_ERRBUF_SIZE, |
| 1051 | "recv_ack: %s: Unexpected primitive ack %s", |
| 1052 | what, dlprim(dlp->dl_primitive)); |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 1053 | return (PCAP_ERROR); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1054 | } |
| 1055 | |
| 1056 | if (ctl.len < size) { |
| 1057 | snprintf(ebuf, PCAP_ERRBUF_SIZE, |
| 1058 | "recv_ack: %s: Ack too small (%d < %d)", |
| 1059 | what, ctl.len, size); |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 1060 | return (PCAP_ERROR); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1061 | } |
| 1062 | return (ctl.len); |
| 1063 | } |
| 1064 | |
| 1065 | static char * |
| 1066 | dlstrerror(bpf_u_int32 dl_errno) |
| 1067 | { |
| 1068 | static char errstring[6+2+8+1]; |
| 1069 | |
| 1070 | switch (dl_errno) { |
| 1071 | |
| 1072 | case DL_ACCESS: |
| 1073 | return ("Improper permissions for request"); |
| 1074 | |
| 1075 | case DL_BADADDR: |
| 1076 | return ("DLSAP addr in improper format or invalid"); |
| 1077 | |
| 1078 | case DL_BADCORR: |
| 1079 | return ("Seq number not from outstand DL_CONN_IND"); |
| 1080 | |
| 1081 | case DL_BADDATA: |
| 1082 | return ("User data exceeded provider limit"); |
| 1083 | |
| 1084 | case DL_BADPPA: |
| 1085 | #ifdef HAVE_DEV_DLPI |
| 1086 | /* |
| 1087 | * With a single "/dev/dlpi" device used for all |
| 1088 | * DLPI providers, PPAs have nothing to do with |
| 1089 | * unit numbers. |
| 1090 | */ |
| 1091 | return ("Specified PPA was invalid"); |
| 1092 | #else |
| 1093 | /* |
| 1094 | * We have separate devices for separate devices; |
| 1095 | * the PPA is just the unit number. |
| 1096 | */ |
| 1097 | return ("Specified PPA (device unit) was invalid"); |
| 1098 | #endif |
| 1099 | |
| 1100 | case DL_BADPRIM: |
| 1101 | return ("Primitive received not known by provider"); |
| 1102 | |
| 1103 | case DL_BADQOSPARAM: |
| 1104 | return ("QOS parameters contained invalid values"); |
| 1105 | |
| 1106 | case DL_BADQOSTYPE: |
| 1107 | return ("QOS structure type is unknown/unsupported"); |
| 1108 | |
| 1109 | case DL_BADSAP: |
| 1110 | return ("Bad LSAP selector"); |
| 1111 | |
| 1112 | case DL_BADTOKEN: |
| 1113 | return ("Token used not an active stream"); |
| 1114 | |
| 1115 | case DL_BOUND: |
| 1116 | return ("Attempted second bind with dl_max_conind"); |
| 1117 | |
| 1118 | case DL_INITFAILED: |
| 1119 | return ("Physical link initialization failed"); |
| 1120 | |
| 1121 | case DL_NOADDR: |
| 1122 | return ("Provider couldn't allocate alternate address"); |
| 1123 | |
| 1124 | case DL_NOTINIT: |
| 1125 | return ("Physical link not initialized"); |
| 1126 | |
| 1127 | case DL_OUTSTATE: |
| 1128 | return ("Primitive issued in improper state"); |
| 1129 | |
| 1130 | case DL_SYSERR: |
| 1131 | return ("UNIX system error occurred"); |
| 1132 | |
| 1133 | case DL_UNSUPPORTED: |
| 1134 | return ("Requested service not supplied by provider"); |
| 1135 | |
| 1136 | case DL_UNDELIVERABLE: |
| 1137 | return ("Previous data unit could not be delivered"); |
| 1138 | |
| 1139 | case DL_NOTSUPPORTED: |
| 1140 | return ("Primitive is known but not supported"); |
| 1141 | |
| 1142 | case DL_TOOMANY: |
| 1143 | return ("Limit exceeded"); |
| 1144 | |
| 1145 | case DL_NOTENAB: |
| 1146 | return ("Promiscuous mode not enabled"); |
| 1147 | |
| 1148 | case DL_BUSY: |
| 1149 | return ("Other streams for PPA in post-attached"); |
| 1150 | |
| 1151 | case DL_NOAUTO: |
| 1152 | return ("Automatic handling XID&TEST not supported"); |
| 1153 | |
| 1154 | case DL_NOXIDAUTO: |
| 1155 | return ("Automatic handling of XID not supported"); |
| 1156 | |
| 1157 | case DL_NOTESTAUTO: |
| 1158 | return ("Automatic handling of TEST not supported"); |
| 1159 | |
| 1160 | case DL_XIDAUTO: |
| 1161 | return ("Automatic handling of XID response"); |
| 1162 | |
| 1163 | case DL_TESTAUTO: |
| 1164 | return ("Automatic handling of TEST response"); |
| 1165 | |
| 1166 | case DL_PENDING: |
| 1167 | return ("Pending outstanding connect indications"); |
| 1168 | |
| 1169 | default: |
| 1170 | sprintf(errstring, "Error %02x", dl_errno); |
| 1171 | return (errstring); |
| 1172 | } |
| 1173 | } |
| 1174 | |
| 1175 | static char * |
| 1176 | dlprim(bpf_u_int32 prim) |
| 1177 | { |
| 1178 | static char primbuf[80]; |
| 1179 | |
| 1180 | switch (prim) { |
| 1181 | |
| 1182 | case DL_INFO_REQ: |
| 1183 | return ("DL_INFO_REQ"); |
| 1184 | |
| 1185 | case DL_INFO_ACK: |
| 1186 | return ("DL_INFO_ACK"); |
| 1187 | |
| 1188 | case DL_ATTACH_REQ: |
| 1189 | return ("DL_ATTACH_REQ"); |
| 1190 | |
| 1191 | case DL_DETACH_REQ: |
| 1192 | return ("DL_DETACH_REQ"); |
| 1193 | |
| 1194 | case DL_BIND_REQ: |
| 1195 | return ("DL_BIND_REQ"); |
| 1196 | |
| 1197 | case DL_BIND_ACK: |
| 1198 | return ("DL_BIND_ACK"); |
| 1199 | |
| 1200 | case DL_UNBIND_REQ: |
| 1201 | return ("DL_UNBIND_REQ"); |
| 1202 | |
| 1203 | case DL_OK_ACK: |
| 1204 | return ("DL_OK_ACK"); |
| 1205 | |
| 1206 | case DL_ERROR_ACK: |
| 1207 | return ("DL_ERROR_ACK"); |
| 1208 | |
| 1209 | case DL_SUBS_BIND_REQ: |
| 1210 | return ("DL_SUBS_BIND_REQ"); |
| 1211 | |
| 1212 | case DL_SUBS_BIND_ACK: |
| 1213 | return ("DL_SUBS_BIND_ACK"); |
| 1214 | |
| 1215 | case DL_UNITDATA_REQ: |
| 1216 | return ("DL_UNITDATA_REQ"); |
| 1217 | |
| 1218 | case DL_UNITDATA_IND: |
| 1219 | return ("DL_UNITDATA_IND"); |
| 1220 | |
| 1221 | case DL_UDERROR_IND: |
| 1222 | return ("DL_UDERROR_IND"); |
| 1223 | |
| 1224 | case DL_UDQOS_REQ: |
| 1225 | return ("DL_UDQOS_REQ"); |
| 1226 | |
| 1227 | case DL_CONNECT_REQ: |
| 1228 | return ("DL_CONNECT_REQ"); |
| 1229 | |
| 1230 | case DL_CONNECT_IND: |
| 1231 | return ("DL_CONNECT_IND"); |
| 1232 | |
| 1233 | case DL_CONNECT_RES: |
| 1234 | return ("DL_CONNECT_RES"); |
| 1235 | |
| 1236 | case DL_CONNECT_CON: |
| 1237 | return ("DL_CONNECT_CON"); |
| 1238 | |
| 1239 | case DL_TOKEN_REQ: |
| 1240 | return ("DL_TOKEN_REQ"); |
| 1241 | |
| 1242 | case DL_TOKEN_ACK: |
| 1243 | return ("DL_TOKEN_ACK"); |
| 1244 | |
| 1245 | case DL_DISCONNECT_REQ: |
| 1246 | return ("DL_DISCONNECT_REQ"); |
| 1247 | |
| 1248 | case DL_DISCONNECT_IND: |
| 1249 | return ("DL_DISCONNECT_IND"); |
| 1250 | |
| 1251 | case DL_RESET_REQ: |
| 1252 | return ("DL_RESET_REQ"); |
| 1253 | |
| 1254 | case DL_RESET_IND: |
| 1255 | return ("DL_RESET_IND"); |
| 1256 | |
| 1257 | case DL_RESET_RES: |
| 1258 | return ("DL_RESET_RES"); |
| 1259 | |
| 1260 | case DL_RESET_CON: |
| 1261 | return ("DL_RESET_CON"); |
| 1262 | |
| 1263 | default: |
| 1264 | (void) sprintf(primbuf, "unknown primitive 0x%x", prim); |
| 1265 | return (primbuf); |
| 1266 | } |
| 1267 | } |
| 1268 | |
| 1269 | static int |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1270 | dlbindreq(int fd, bpf_u_int32 sap, char *ebuf) |
| 1271 | { |
| 1272 | |
| 1273 | dl_bind_req_t req; |
| 1274 | |
| 1275 | memset((char *)&req, 0, sizeof(req)); |
| 1276 | req.dl_primitive = DL_BIND_REQ; |
| 1277 | /* XXX - what if neither of these are defined? */ |
| 1278 | #if defined(DL_HP_RAWDLS) |
| 1279 | req.dl_max_conind = 1; /* XXX magic number */ |
| 1280 | req.dl_service_mode = DL_HP_RAWDLS; |
| 1281 | #elif defined(DL_CLDLS) |
| 1282 | req.dl_service_mode = DL_CLDLS; |
| 1283 | #endif |
| 1284 | req.dl_sap = sap; |
| 1285 | |
| 1286 | return (send_request(fd, (char *)&req, sizeof(req), "bind", ebuf)); |
| 1287 | } |
| 1288 | |
| 1289 | static int |
| 1290 | dlbindack(int fd, char *bufp, char *ebuf, int *uerror) |
| 1291 | { |
| 1292 | |
| 1293 | return (recv_ack(fd, DL_BIND_ACK_SIZE, "bind", bufp, ebuf, uerror)); |
| 1294 | } |
| 1295 | |
| 1296 | static int |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1297 | dlokack(int fd, const char *what, char *bufp, char *ebuf) |
| 1298 | { |
| 1299 | |
| 1300 | return (recv_ack(fd, DL_OK_ACK_SIZE, what, bufp, ebuf, NULL)); |
| 1301 | } |
| 1302 | |
| 1303 | |
| 1304 | static int |
| 1305 | dlinforeq(int fd, char *ebuf) |
| 1306 | { |
| 1307 | dl_info_req_t req; |
| 1308 | |
| 1309 | req.dl_primitive = DL_INFO_REQ; |
| 1310 | |
| 1311 | return (send_request(fd, (char *)&req, sizeof(req), "info", ebuf)); |
| 1312 | } |
| 1313 | |
| 1314 | static int |
| 1315 | dlinfoack(int fd, char *bufp, char *ebuf) |
| 1316 | { |
| 1317 | |
| 1318 | return (recv_ack(fd, DL_INFO_ACK_SIZE, "info", bufp, ebuf, NULL)); |
| 1319 | } |
| 1320 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 1321 | #ifdef HAVE_DLPI_PASSIVE |
| 1322 | /* |
| 1323 | * Enable DLPI passive mode. We do not care if this request fails, as this |
| 1324 | * indicates the underlying DLPI device does not support link aggregation. |
| 1325 | */ |
| 1326 | static void |
| 1327 | dlpassive(int fd, char *ebuf) |
| 1328 | { |
| 1329 | dl_passive_req_t req; |
| 1330 | bpf_u_int32 buf[MAXDLBUF]; |
| 1331 | |
| 1332 | req.dl_primitive = DL_PASSIVE_REQ; |
| 1333 | |
| 1334 | if (send_request(fd, (char *)&req, sizeof(req), "dlpassive", ebuf) == 0) |
| 1335 | (void) dlokack(fd, "dlpassive", (char *)buf, ebuf); |
| 1336 | } |
| 1337 | #endif |
| 1338 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1339 | #ifdef DL_HP_RAWDLS |
| 1340 | /* |
| 1341 | * There's an ack *if* there's an error. |
| 1342 | */ |
| 1343 | static int |
| 1344 | dlrawdatareq(int fd, const u_char *datap, int datalen) |
| 1345 | { |
| 1346 | struct strbuf ctl, data; |
| 1347 | long buf[MAXDLBUF]; /* XXX - char? */ |
| 1348 | union DL_primitives *dlp; |
| 1349 | int dlen; |
| 1350 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 1351 | dlp = MAKE_DL_PRIMITIVES(buf); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1352 | |
| 1353 | dlp->dl_primitive = DL_HP_RAWDATA_REQ; |
| 1354 | dlen = DL_HP_RAWDATA_REQ_SIZE; |
| 1355 | |
| 1356 | /* |
| 1357 | * HP's documentation doesn't appear to show us supplying any |
| 1358 | * address pointed to by the control part of the message. |
| 1359 | * I think that's what raw mode means - you just send the raw |
| 1360 | * packet, you don't specify where to send it to, as that's |
| 1361 | * implied by the destination address. |
| 1362 | */ |
| 1363 | ctl.maxlen = 0; |
| 1364 | ctl.len = dlen; |
| 1365 | ctl.buf = (void *)buf; |
| 1366 | |
| 1367 | data.maxlen = 0; |
| 1368 | data.len = datalen; |
| 1369 | data.buf = (void *)datap; |
| 1370 | |
| 1371 | return (putmsg(fd, &ctl, &data, 0)); |
| 1372 | } |
| 1373 | #endif /* DL_HP_RAWDLS */ |
| 1374 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1375 | #if defined(HAVE_SOLARIS) && defined(HAVE_SYS_BUFMOD_H) |
| 1376 | static char * |
| 1377 | get_release(bpf_u_int32 *majorp, bpf_u_int32 *minorp, bpf_u_int32 *microp) |
| 1378 | { |
| 1379 | char *cp; |
| 1380 | static char buf[32]; |
| 1381 | |
| 1382 | *majorp = 0; |
| 1383 | *minorp = 0; |
| 1384 | *microp = 0; |
| 1385 | if (sysinfo(SI_RELEASE, buf, sizeof(buf)) < 0) |
| 1386 | return ("?"); |
| 1387 | cp = buf; |
| 1388 | if (!isdigit((unsigned char)*cp)) |
| 1389 | return (buf); |
| 1390 | *majorp = strtol(cp, &cp, 10); |
| 1391 | if (*cp++ != '.') |
| 1392 | return (buf); |
| 1393 | *minorp = strtol(cp, &cp, 10); |
| 1394 | if (*cp++ != '.') |
| 1395 | return (buf); |
| 1396 | *microp = strtol(cp, &cp, 10); |
| 1397 | return (buf); |
| 1398 | } |
| 1399 | #endif |
| 1400 | |
| 1401 | #ifdef DL_HP_PPA_REQ |
| 1402 | /* |
| 1403 | * Under HP-UX 10 and HP-UX 11, we can ask for the ppa |
| 1404 | */ |
| 1405 | |
| 1406 | |
| 1407 | /* |
| 1408 | * Determine ppa number that specifies ifname. |
| 1409 | * |
| 1410 | * If the "dl_hp_ppa_info_t" doesn't have a "dl_module_id_1" member, |
| 1411 | * the code that's used here is the old code for HP-UX 10.x. |
| 1412 | * |
| 1413 | * However, HP-UX 10.20, at least, appears to have such a member |
| 1414 | * in its "dl_hp_ppa_info_t" structure, so the new code is used. |
| 1415 | * The new code didn't work on an old 10.20 system on which Rick |
| 1416 | * Jones of HP tried it, but with later patches installed, it |
| 1417 | * worked - it appears that the older system had those members but |
| 1418 | * didn't put anything in them, so, if the search by name fails, we |
| 1419 | * do the old search. |
| 1420 | * |
| 1421 | * Rick suggests that making sure your system is "up on the latest |
| 1422 | * lancommon/DLPI/driver patches" is probably a good idea; it'd fix |
| 1423 | * that problem, as well as allowing libpcap to see packets sent |
| 1424 | * from the system on which the libpcap application is being run. |
| 1425 | * (On 10.20, in addition to getting the latest patches, you need |
| 1426 | * to turn the kernel "lanc_outbound_promisc_flag" flag on with ADB; |
| 1427 | * a posting to "comp.sys.hp.hpux" at |
| 1428 | * |
| 1429 | * http://www.deja.com/[ST_rn=ps]/getdoc.xp?AN=558092266 |
| 1430 | * |
| 1431 | * says that, to see the machine's outgoing traffic, you'd need to |
| 1432 | * apply the right patches to your system, and also set that variable |
| 1433 | * with: |
| 1434 | |
| 1435 | echo 'lanc_outbound_promisc_flag/W1' | /usr/bin/adb -w /stand/vmunix /dev/kmem |
| 1436 | |
| 1437 | * which could be put in, for example, "/sbin/init.d/lan". |
| 1438 | * |
| 1439 | * Setting the variable is not necessary on HP-UX 11.x. |
| 1440 | */ |
| 1441 | static int |
| 1442 | get_dlpi_ppa(register int fd, register const char *device, register int unit, |
| 1443 | register char *ebuf) |
| 1444 | { |
| 1445 | register dl_hp_ppa_ack_t *ap; |
| 1446 | register dl_hp_ppa_info_t *ipstart, *ip; |
| 1447 | register int i; |
| 1448 | char dname[100]; |
| 1449 | register u_long majdev; |
| 1450 | struct stat statbuf; |
| 1451 | dl_hp_ppa_req_t req; |
| 1452 | char buf[MAXDLBUF]; |
| 1453 | char *ppa_data_buf; |
| 1454 | dl_hp_ppa_ack_t *dlp; |
| 1455 | struct strbuf ctl; |
| 1456 | int flags; |
| 1457 | int ppa; |
| 1458 | |
| 1459 | memset((char *)&req, 0, sizeof(req)); |
| 1460 | req.dl_primitive = DL_HP_PPA_REQ; |
| 1461 | |
| 1462 | memset((char *)buf, 0, sizeof(buf)); |
| 1463 | if (send_request(fd, (char *)&req, sizeof(req), "hpppa", ebuf) < 0) |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 1464 | return (PCAP_ERROR); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1465 | |
| 1466 | ctl.maxlen = DL_HP_PPA_ACK_SIZE; |
| 1467 | ctl.len = 0; |
| 1468 | ctl.buf = (char *)buf; |
| 1469 | |
| 1470 | flags = 0; |
| 1471 | /* |
| 1472 | * DLPI may return a big chunk of data for a DL_HP_PPA_REQ. The normal |
| 1473 | * recv_ack will fail because it set the maxlen to MAXDLBUF (8192) |
| 1474 | * which is NOT big enough for a DL_HP_PPA_REQ. |
| 1475 | * |
| 1476 | * This causes libpcap applications to fail on a system with HP-APA |
| 1477 | * installed. |
| 1478 | * |
| 1479 | * To figure out how big the returned data is, we first call getmsg |
| 1480 | * to get the small head and peek at the head to get the actual data |
| 1481 | * length, and then issue another getmsg to get the actual PPA data. |
| 1482 | */ |
| 1483 | /* get the head first */ |
| 1484 | if (getmsg(fd, &ctl, (struct strbuf *)NULL, &flags) < 0) { |
| 1485 | snprintf(ebuf, PCAP_ERRBUF_SIZE, |
| 1486 | "get_dlpi_ppa: hpppa getmsg: %s", pcap_strerror(errno)); |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 1487 | return (PCAP_ERROR); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1488 | } |
| 1489 | |
| 1490 | dlp = (dl_hp_ppa_ack_t *)ctl.buf; |
| 1491 | if (dlp->dl_primitive != DL_HP_PPA_ACK) { |
| 1492 | snprintf(ebuf, PCAP_ERRBUF_SIZE, |
| 1493 | "get_dlpi_ppa: hpppa unexpected primitive ack 0x%x", |
| 1494 | (bpf_u_int32)dlp->dl_primitive); |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 1495 | return (PCAP_ERROR); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1496 | } |
| 1497 | |
| 1498 | if (ctl.len < DL_HP_PPA_ACK_SIZE) { |
| 1499 | snprintf(ebuf, PCAP_ERRBUF_SIZE, |
| 1500 | "get_dlpi_ppa: hpppa ack too small (%d < %lu)", |
| 1501 | ctl.len, (unsigned long)DL_HP_PPA_ACK_SIZE); |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 1502 | return (PCAP_ERROR); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1503 | } |
| 1504 | |
| 1505 | /* allocate buffer */ |
| 1506 | if ((ppa_data_buf = (char *)malloc(dlp->dl_length)) == NULL) { |
| 1507 | snprintf(ebuf, PCAP_ERRBUF_SIZE, |
| 1508 | "get_dlpi_ppa: hpppa malloc: %s", pcap_strerror(errno)); |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 1509 | return (PCAP_ERROR); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1510 | } |
| 1511 | ctl.maxlen = dlp->dl_length; |
| 1512 | ctl.len = 0; |
| 1513 | ctl.buf = (char *)ppa_data_buf; |
| 1514 | /* get the data */ |
| 1515 | if (getmsg(fd, &ctl, (struct strbuf *)NULL, &flags) < 0) { |
| 1516 | snprintf(ebuf, PCAP_ERRBUF_SIZE, |
| 1517 | "get_dlpi_ppa: hpppa getmsg: %s", pcap_strerror(errno)); |
| 1518 | free(ppa_data_buf); |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 1519 | return (PCAP_ERROR); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1520 | } |
| 1521 | if (ctl.len < dlp->dl_length) { |
| 1522 | snprintf(ebuf, PCAP_ERRBUF_SIZE, |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 1523 | "get_dlpi_ppa: hpppa ack too small (%d < %lu)", |
| 1524 | ctl.len, (unsigned long)dlp->dl_length); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1525 | free(ppa_data_buf); |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 1526 | return (PCAP_ERROR); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1527 | } |
| 1528 | |
| 1529 | ap = (dl_hp_ppa_ack_t *)buf; |
| 1530 | ipstart = (dl_hp_ppa_info_t *)ppa_data_buf; |
| 1531 | ip = ipstart; |
| 1532 | |
| 1533 | #ifdef HAVE_HP_PPA_INFO_T_DL_MODULE_ID_1 |
| 1534 | /* |
| 1535 | * The "dl_hp_ppa_info_t" structure has a "dl_module_id_1" |
| 1536 | * member that should, in theory, contain the part of the |
| 1537 | * name for the device that comes before the unit number, |
| 1538 | * and should also have a "dl_module_id_2" member that may |
| 1539 | * contain an alternate name (e.g., I think Ethernet devices |
| 1540 | * have both "lan", for "lanN", and "snap", for "snapN", with |
| 1541 | * the former being for Ethernet packets and the latter being |
| 1542 | * for 802.3/802.2 packets). |
| 1543 | * |
| 1544 | * Search for the device that has the specified name and |
| 1545 | * instance number. |
| 1546 | */ |
| 1547 | for (i = 0; i < ap->dl_count; i++) { |
| 1548 | if ((strcmp((const char *)ip->dl_module_id_1, device) == 0 || |
| 1549 | strcmp((const char *)ip->dl_module_id_2, device) == 0) && |
| 1550 | ip->dl_instance_num == unit) |
| 1551 | break; |
| 1552 | |
| 1553 | ip = (dl_hp_ppa_info_t *)((u_char *)ipstart + ip->dl_next_offset); |
| 1554 | } |
| 1555 | #else |
| 1556 | /* |
| 1557 | * We don't have that member, so the search is impossible; make it |
| 1558 | * look as if the search failed. |
| 1559 | */ |
| 1560 | i = ap->dl_count; |
| 1561 | #endif |
| 1562 | |
| 1563 | if (i == ap->dl_count) { |
| 1564 | /* |
| 1565 | * Well, we didn't, or can't, find the device by name. |
| 1566 | * |
| 1567 | * HP-UX 10.20, whilst it has "dl_module_id_1" and |
| 1568 | * "dl_module_id_2" fields in the "dl_hp_ppa_info_t", |
| 1569 | * doesn't seem to fill them in unless the system is |
| 1570 | * at a reasonably up-to-date patch level. |
| 1571 | * |
| 1572 | * Older HP-UX 10.x systems might not have those fields |
| 1573 | * at all. |
| 1574 | * |
| 1575 | * Therefore, we'll search for the entry with the major |
| 1576 | * device number of a device with the name "/dev/<dev><unit>", |
| 1577 | * if such a device exists, as the old code did. |
| 1578 | */ |
| 1579 | snprintf(dname, sizeof(dname), "/dev/%s%d", device, unit); |
| 1580 | if (stat(dname, &statbuf) < 0) { |
| 1581 | snprintf(ebuf, PCAP_ERRBUF_SIZE, "stat: %s: %s", |
| 1582 | dname, pcap_strerror(errno)); |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 1583 | return (PCAP_ERROR); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1584 | } |
| 1585 | majdev = major(statbuf.st_rdev); |
| 1586 | |
| 1587 | ip = ipstart; |
| 1588 | |
| 1589 | for (i = 0; i < ap->dl_count; i++) { |
| 1590 | if (ip->dl_mjr_num == majdev && |
| 1591 | ip->dl_instance_num == unit) |
| 1592 | break; |
| 1593 | |
| 1594 | ip = (dl_hp_ppa_info_t *)((u_char *)ipstart + ip->dl_next_offset); |
| 1595 | } |
| 1596 | } |
| 1597 | if (i == ap->dl_count) { |
| 1598 | snprintf(ebuf, PCAP_ERRBUF_SIZE, |
| 1599 | "can't find /dev/dlpi PPA for %s%d", device, unit); |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 1600 | return (PCAP_ERROR_NO_SUCH_DEVICE); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1601 | } |
| 1602 | if (ip->dl_hdw_state == HDW_DEAD) { |
| 1603 | snprintf(ebuf, PCAP_ERRBUF_SIZE, |
| 1604 | "%s%d: hardware state: DOWN\n", device, unit); |
| 1605 | free(ppa_data_buf); |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 1606 | return (PCAP_ERROR); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1607 | } |
| 1608 | ppa = ip->dl_ppa; |
| 1609 | free(ppa_data_buf); |
| 1610 | return (ppa); |
| 1611 | } |
| 1612 | #endif |
| 1613 | |
| 1614 | #ifdef HAVE_HPUX9 |
| 1615 | /* |
| 1616 | * Under HP-UX 9, there is no good way to determine the ppa. |
| 1617 | * So punt and read it from /dev/kmem. |
| 1618 | */ |
| 1619 | static struct nlist nl[] = { |
| 1620 | #define NL_IFNET 0 |
| 1621 | { "ifnet" }, |
| 1622 | { "" } |
| 1623 | }; |
| 1624 | |
| 1625 | static char path_vmunix[] = "/hp-ux"; |
| 1626 | |
| 1627 | /* Determine ppa number that specifies ifname */ |
| 1628 | static int |
| 1629 | get_dlpi_ppa(register int fd, register const char *ifname, register int unit, |
| 1630 | register char *ebuf) |
| 1631 | { |
| 1632 | register const char *cp; |
| 1633 | register int kd; |
| 1634 | void *addr; |
| 1635 | struct ifnet ifnet; |
| 1636 | char if_name[sizeof(ifnet.if_name) + 1]; |
| 1637 | |
| 1638 | cp = strrchr(ifname, '/'); |
| 1639 | if (cp != NULL) |
| 1640 | ifname = cp + 1; |
| 1641 | if (nlist(path_vmunix, &nl) < 0) { |
| 1642 | snprintf(ebuf, PCAP_ERRBUF_SIZE, "nlist %s failed", |
| 1643 | path_vmunix); |
| 1644 | return (-1); |
| 1645 | } |
| 1646 | if (nl[NL_IFNET].n_value == 0) { |
| 1647 | snprintf(ebuf, PCAP_ERRBUF_SIZE, |
| 1648 | "could't find %s kernel symbol", |
| 1649 | nl[NL_IFNET].n_name); |
| 1650 | return (-1); |
| 1651 | } |
| 1652 | kd = open("/dev/kmem", O_RDONLY); |
| 1653 | if (kd < 0) { |
| 1654 | snprintf(ebuf, PCAP_ERRBUF_SIZE, "kmem open: %s", |
| 1655 | pcap_strerror(errno)); |
| 1656 | return (-1); |
| 1657 | } |
| 1658 | if (dlpi_kread(kd, nl[NL_IFNET].n_value, |
| 1659 | &addr, sizeof(addr), ebuf) < 0) { |
| 1660 | close(kd); |
| 1661 | return (-1); |
| 1662 | } |
| 1663 | for (; addr != NULL; addr = ifnet.if_next) { |
| 1664 | if (dlpi_kread(kd, (off_t)addr, |
| 1665 | &ifnet, sizeof(ifnet), ebuf) < 0 || |
| 1666 | dlpi_kread(kd, (off_t)ifnet.if_name, |
| 1667 | if_name, sizeof(ifnet.if_name), ebuf) < 0) { |
| 1668 | (void)close(kd); |
| 1669 | return (-1); |
| 1670 | } |
| 1671 | if_name[sizeof(ifnet.if_name)] = '\0'; |
| 1672 | if (strcmp(if_name, ifname) == 0 && ifnet.if_unit == unit) |
| 1673 | return (ifnet.if_index); |
| 1674 | } |
| 1675 | |
| 1676 | snprintf(ebuf, PCAP_ERRBUF_SIZE, "Can't find %s", ifname); |
| 1677 | return (-1); |
| 1678 | } |
| 1679 | |
| 1680 | static int |
| 1681 | dlpi_kread(register int fd, register off_t addr, |
| 1682 | register void *buf, register u_int len, register char *ebuf) |
| 1683 | { |
| 1684 | register int cc; |
| 1685 | |
| 1686 | if (lseek(fd, addr, SEEK_SET) < 0) { |
| 1687 | snprintf(ebuf, PCAP_ERRBUF_SIZE, "lseek: %s", |
| 1688 | pcap_strerror(errno)); |
| 1689 | return (-1); |
| 1690 | } |
| 1691 | cc = read(fd, buf, len); |
| 1692 | if (cc < 0) { |
| 1693 | snprintf(ebuf, PCAP_ERRBUF_SIZE, "read: %s", |
| 1694 | pcap_strerror(errno)); |
| 1695 | return (-1); |
| 1696 | } else if (cc != len) { |
| 1697 | snprintf(ebuf, PCAP_ERRBUF_SIZE, "short read (%d != %d)", cc, |
| 1698 | len); |
| 1699 | return (-1); |
| 1700 | } |
| 1701 | return (cc); |
| 1702 | } |
| 1703 | #endif |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 1704 | |
| 1705 | pcap_t * |
| 1706 | pcap_create_interface(const char *device, char *ebuf) |
| 1707 | { |
| 1708 | pcap_t *p; |
| 1709 | #ifdef DL_HP_RAWDLS |
| 1710 | struct pcap_dlpi *pd; |
| 1711 | #endif |
| 1712 | |
| 1713 | p = pcap_create_common(device, ebuf, sizeof (struct pcap_dlpi)); |
| 1714 | if (p == NULL) |
| 1715 | return (NULL); |
| 1716 | |
| 1717 | #ifdef DL_HP_RAWDLS |
| 1718 | pd = p->priv; |
| 1719 | pd->send_fd = -1; /* it hasn't been opened yet */ |
| 1720 | #endif |
| 1721 | |
| 1722 | p->activate_op = pcap_activate_dlpi; |
| 1723 | return (p); |
| 1724 | } |