The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 1994, 1995, 1996 |
| 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 the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in the |
| 12 | * documentation and/or other materials provided with the distribution. |
| 13 | * 3. All advertising materials mentioning features or use of this software |
| 14 | * must display the following acknowledgement: |
| 15 | * This product includes software developed by the Computer Systems |
| 16 | * Engineering Group at Lawrence Berkeley Laboratory. |
| 17 | * 4. Neither the name of the University nor of the Laboratory may be used |
| 18 | * to endorse or promote products derived from this software without |
| 19 | * specific prior written permission. |
| 20 | * |
| 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 31 | * SUCH DAMAGE. |
| 32 | * |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 33 | * @(#) $Header: /tcpdump/master/libpcap/pcap-int.h,v 1.94 2008-09-16 00:20:23 guy Exp $ (LBL) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 34 | */ |
| 35 | |
| 36 | #ifndef pcap_int_h |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 37 | #define pcap_int_h |
| 38 | |
| 39 | #include <pcap/pcap.h> |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 40 | |
| 41 | #ifdef __cplusplus |
| 42 | extern "C" { |
| 43 | #endif |
| 44 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 45 | #ifdef WIN32 |
| 46 | #include <Packet32.h> |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 47 | extern CRITICAL_SECTION g_PcapCompileCriticalSection; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 48 | #endif /* WIN32 */ |
| 49 | |
| 50 | #ifdef MSDOS |
| 51 | #include <fcntl.h> |
| 52 | #include <io.h> |
| 53 | #endif |
| 54 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 55 | #if (defined(_MSC_VER) && (_MSC_VER <= 1200)) /* we are compiling with Visual Studio 6, that doesn't support the LL suffix*/ |
| 56 | |
| 57 | /* |
| 58 | * Swap byte ordering of unsigned long long timestamp on a big endian |
| 59 | * machine. |
| 60 | */ |
| 61 | #define SWAPLL(ull) ((ull & 0xff00000000000000) >> 56) | \ |
| 62 | ((ull & 0x00ff000000000000) >> 40) | \ |
| 63 | ((ull & 0x0000ff0000000000) >> 24) | \ |
| 64 | ((ull & 0x000000ff00000000) >> 8) | \ |
| 65 | ((ull & 0x00000000ff000000) << 8) | \ |
| 66 | ((ull & 0x0000000000ff0000) << 24) | \ |
| 67 | ((ull & 0x000000000000ff00) << 40) | \ |
| 68 | ((ull & 0x00000000000000ff) << 56) |
| 69 | |
| 70 | #else /* A recent Visual studio compiler or not VC */ |
| 71 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 72 | /* |
| 73 | * Swap byte ordering of unsigned long long timestamp on a big endian |
| 74 | * machine. |
| 75 | */ |
| 76 | #define SWAPLL(ull) ((ull & 0xff00000000000000LL) >> 56) | \ |
| 77 | ((ull & 0x00ff000000000000LL) >> 40) | \ |
| 78 | ((ull & 0x0000ff0000000000LL) >> 24) | \ |
| 79 | ((ull & 0x000000ff00000000LL) >> 8) | \ |
| 80 | ((ull & 0x00000000ff000000LL) << 8) | \ |
| 81 | ((ull & 0x0000000000ff0000LL) << 24) | \ |
| 82 | ((ull & 0x000000000000ff00LL) << 40) | \ |
| 83 | ((ull & 0x00000000000000ffLL) << 56) |
| 84 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 85 | #endif /* _MSC_VER */ |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 86 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 87 | struct pcap_opt { |
| 88 | char *source; |
| 89 | int timeout; /* timeout for buffering */ |
| 90 | int buffer_size; |
| 91 | int promisc; |
| 92 | int rfmon; /* monitor mode */ |
| 93 | int immediate; /* immediate mode - deliver packets as soon as they arrive */ |
| 94 | int tstamp_type; |
| 95 | int tstamp_precision; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 96 | }; |
| 97 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 98 | typedef int (*activate_op_t)(pcap_t *); |
| 99 | typedef int (*can_set_rfmon_op_t)(pcap_t *); |
| 100 | typedef int (*read_op_t)(pcap_t *, int cnt, pcap_handler, u_char *); |
| 101 | typedef int (*inject_op_t)(pcap_t *, const void *, size_t); |
| 102 | typedef int (*setfilter_op_t)(pcap_t *, struct bpf_program *); |
| 103 | typedef int (*setdirection_op_t)(pcap_t *, pcap_direction_t); |
| 104 | typedef int (*set_datalink_op_t)(pcap_t *, int); |
| 105 | typedef int (*getnonblock_op_t)(pcap_t *, char *); |
| 106 | typedef int (*setnonblock_op_t)(pcap_t *, int, char *); |
| 107 | typedef int (*stats_op_t)(pcap_t *, struct pcap_stat *); |
| 108 | #ifdef WIN32 |
| 109 | typedef int (*setbuff_op_t)(pcap_t *, int); |
| 110 | typedef int (*setmode_op_t)(pcap_t *, int); |
| 111 | typedef int (*setmintocopy_op_t)(pcap_t *, int); |
| 112 | typedef Adapter *(*getadapter_op_t)(pcap_t *); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 113 | #endif |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 114 | typedef void (*cleanup_op_t)(pcap_t *); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 115 | |
| 116 | /* |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 117 | * We put all the stuff used in the read code path at the beginning, |
| 118 | * to try to keep it together in the same cache line or lines. |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 119 | */ |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 120 | struct pcap { |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 121 | /* |
| 122 | * Method to call to read packets on a live capture. |
| 123 | */ |
| 124 | read_op_t read_op; |
| 125 | |
| 126 | /* |
| 127 | * Method to call to read to read packets from a savefile. |
| 128 | */ |
| 129 | int (*next_packet_op)(pcap_t *, struct pcap_pkthdr *, u_char **); |
| 130 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 131 | #ifdef WIN32 |
| 132 | ADAPTER *adapter; |
| 133 | LPPACKET Packet; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 134 | int nonblock; |
| 135 | #else |
| 136 | int fd; |
| 137 | int selectable_fd; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 138 | #endif /* WIN32 */ |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 139 | |
| 140 | /* |
| 141 | * Read buffer. |
| 142 | */ |
| 143 | int bufsize; |
| 144 | u_char *buffer; |
| 145 | u_char *bp; |
| 146 | int cc; |
| 147 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 148 | int break_loop; /* flag set to force break from packet-reading loop */ |
| 149 | |
| 150 | void *priv; /* private data for methods */ |
| 151 | |
| 152 | int swapped; |
| 153 | FILE *rfile; /* null if live capture, non-null if savefile */ |
| 154 | int fddipad; |
| 155 | struct pcap *next; /* list of open pcaps that need stuff cleared on close */ |
| 156 | |
| 157 | /* |
| 158 | * File version number; meaningful only for a savefile, but we |
| 159 | * keep it here so that apps that (mistakenly) ask for the |
| 160 | * version numbers will get the same zero values that they |
| 161 | * always did. |
| 162 | */ |
| 163 | int version_major; |
| 164 | int version_minor; |
| 165 | |
| 166 | int snapshot; |
| 167 | int linktype; /* Network linktype */ |
| 168 | int linktype_ext; /* Extended information stored in the linktype field of a file */ |
| 169 | int tzoff; /* timezone offset */ |
| 170 | int offset; /* offset for proper alignment */ |
| 171 | int activated; /* true if the capture is really started */ |
| 172 | int oldstyle; /* if we're opening with pcap_open_live() */ |
| 173 | |
| 174 | struct pcap_opt opt; |
| 175 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 176 | /* |
| 177 | * Place holder for pcap_next(). |
| 178 | */ |
| 179 | u_char *pkt; |
| 180 | |
| 181 | /* We're accepting only packets in this direction/these directions. */ |
| 182 | pcap_direction_t direction; |
| 183 | |
| 184 | /* |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 185 | * Placeholder for filter code if bpf not in kernel. |
| 186 | */ |
| 187 | struct bpf_program fcode; |
| 188 | |
| 189 | char errbuf[PCAP_ERRBUF_SIZE + 1]; |
| 190 | int dlt_count; |
| 191 | u_int *dlt_list; |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 192 | int tstamp_type_count; |
| 193 | u_int *tstamp_type_list; |
| 194 | int tstamp_precision_count; |
| 195 | u_int *tstamp_precision_list; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 196 | |
| 197 | struct pcap_pkthdr pcap_header; /* This is needed for the pcap_next_ex() to work */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 198 | |
| 199 | /* |
| 200 | * More methods. |
| 201 | */ |
| 202 | activate_op_t activate_op; |
| 203 | can_set_rfmon_op_t can_set_rfmon_op; |
| 204 | inject_op_t inject_op; |
| 205 | setfilter_op_t setfilter_op; |
| 206 | setdirection_op_t setdirection_op; |
| 207 | set_datalink_op_t set_datalink_op; |
| 208 | getnonblock_op_t getnonblock_op; |
| 209 | setnonblock_op_t setnonblock_op; |
| 210 | stats_op_t stats_op; |
| 211 | |
| 212 | /* |
| 213 | * Routine to use as callback for pcap_next()/pcap_next_ex(). |
| 214 | */ |
| 215 | pcap_handler oneshot_callback; |
| 216 | |
| 217 | #ifdef WIN32 |
| 218 | /* |
| 219 | * These are, at least currently, specific to the Win32 NPF |
| 220 | * driver. |
| 221 | */ |
| 222 | setbuff_op_t setbuff_op; |
| 223 | setmode_op_t setmode_op; |
| 224 | setmintocopy_op_t setmintocopy_op; |
| 225 | getadapter_op_t getadapter_op; |
| 226 | #endif |
| 227 | cleanup_op_t cleanup_op; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 228 | }; |
| 229 | |
| 230 | /* |
| 231 | * This is a timeval as stored in a savefile. |
| 232 | * It has to use the same types everywhere, independent of the actual |
| 233 | * `struct timeval'; `struct timeval' has 32-bit tv_sec values on some |
| 234 | * platforms and 64-bit tv_sec values on other platforms, and writing |
| 235 | * out native `struct timeval' values would mean files could only be |
| 236 | * read on systems with the same tv_sec size as the system on which |
| 237 | * the file was written. |
| 238 | */ |
| 239 | |
| 240 | struct pcap_timeval { |
| 241 | bpf_int32 tv_sec; /* seconds */ |
| 242 | bpf_int32 tv_usec; /* microseconds */ |
| 243 | }; |
| 244 | |
| 245 | /* |
| 246 | * This is a `pcap_pkthdr' as actually stored in a savefile. |
| 247 | * |
| 248 | * Do not change the format of this structure, in any way (this includes |
| 249 | * changes that only affect the length of fields in this structure), |
| 250 | * and do not make the time stamp anything other than seconds and |
| 251 | * microseconds (e.g., seconds and nanoseconds). Instead: |
| 252 | * |
| 253 | * introduce a new structure for the new format; |
| 254 | * |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 255 | * send mail to "tcpdump-workers@lists.tcpdump.org", requesting |
| 256 | * a new magic number for your new capture file format, and, when |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 257 | * you get the new magic number, put it in "savefile.c"; |
| 258 | * |
| 259 | * use that magic number for save files with the changed record |
| 260 | * header; |
| 261 | * |
| 262 | * make the code in "savefile.c" capable of reading files with |
| 263 | * the old record header as well as files with the new record header |
| 264 | * (using the magic number to determine the header format). |
| 265 | * |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 266 | * Then supply the changes by forking the branch at |
| 267 | * |
| 268 | * https://github.com/the-tcpdump-group/libpcap/issues |
| 269 | * |
| 270 | * and issuing a pull request, so that future versions of libpcap and |
| 271 | * programs that use it (such as tcpdump) will be able to read your new |
| 272 | * capture file format. |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 273 | */ |
| 274 | |
| 275 | struct pcap_sf_pkthdr { |
| 276 | struct pcap_timeval ts; /* time stamp */ |
| 277 | bpf_u_int32 caplen; /* length of portion present */ |
| 278 | bpf_u_int32 len; /* length this packet (off wire) */ |
| 279 | }; |
| 280 | |
| 281 | /* |
| 282 | * How a `pcap_pkthdr' is actually stored in savefiles written |
| 283 | * by some patched versions of libpcap (e.g. the ones in Red |
| 284 | * Hat Linux 6.1 and 6.2). |
| 285 | * |
| 286 | * Do not change the format of this structure, in any way (this includes |
| 287 | * changes that only affect the length of fields in this structure). |
| 288 | * Instead, introduce a new structure, as per the above. |
| 289 | */ |
| 290 | |
| 291 | struct pcap_sf_patched_pkthdr { |
| 292 | struct pcap_timeval ts; /* time stamp */ |
| 293 | bpf_u_int32 caplen; /* length of portion present */ |
| 294 | bpf_u_int32 len; /* length this packet (off wire) */ |
| 295 | int index; |
| 296 | unsigned short protocol; |
| 297 | unsigned char pkt_type; |
| 298 | }; |
| 299 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 300 | /* |
| 301 | * User data structure for the one-shot callback used for pcap_next() |
| 302 | * and pcap_next_ex(). |
| 303 | */ |
| 304 | struct oneshot_userdata { |
| 305 | struct pcap_pkthdr *hdr; |
| 306 | const u_char **pkt; |
| 307 | pcap_t *pd; |
| 308 | }; |
| 309 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 310 | int yylex(void); |
| 311 | |
| 312 | #ifndef min |
| 313 | #define min(a, b) ((a) > (b) ? (b) : (a)) |
| 314 | #endif |
| 315 | |
| 316 | /* XXX should these be in pcap.h? */ |
| 317 | int pcap_offline_read(pcap_t *, int, pcap_handler, u_char *); |
| 318 | int pcap_read(pcap_t *, int cnt, pcap_handler, u_char *); |
| 319 | |
| 320 | #ifndef HAVE_STRLCPY |
| 321 | #define strlcpy(x, y, z) \ |
| 322 | (strncpy((x), (y), (z)), \ |
| 323 | ((z) <= 0 ? 0 : ((x)[(z) - 1] = '\0')), \ |
| 324 | strlen((y))) |
| 325 | #endif |
| 326 | |
| 327 | #include <stdarg.h> |
| 328 | |
| 329 | #if !defined(HAVE_SNPRINTF) |
| 330 | #define snprintf pcap_snprintf |
| 331 | extern int snprintf (char *, size_t, const char *, ...); |
| 332 | #endif |
| 333 | |
| 334 | #if !defined(HAVE_VSNPRINTF) |
| 335 | #define vsnprintf pcap_vsnprintf |
| 336 | extern int vsnprintf (char *, size_t, const char *, va_list ap); |
| 337 | #endif |
| 338 | |
| 339 | /* |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 340 | * Does the packet count argument to a module's read routine say |
| 341 | * "supply packets until you run out of packets"? |
| 342 | */ |
| 343 | #define PACKET_COUNT_IS_UNLIMITED(count) ((count) <= 0) |
| 344 | |
| 345 | /* |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 346 | * Routines that most pcap implementations can use for non-blocking mode. |
| 347 | */ |
| 348 | #if !defined(WIN32) && !defined(MSDOS) |
| 349 | int pcap_getnonblock_fd(pcap_t *, char *); |
| 350 | int pcap_setnonblock_fd(pcap_t *p, int, char *); |
| 351 | #endif |
| 352 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 353 | /* |
| 354 | * Internal interfaces for "pcap_create()". |
| 355 | * |
| 356 | * "pcap_create_interface()" is the routine to do a pcap_create on |
| 357 | * a regular network interface. There are multiple implementations |
| 358 | * of this, one for each platform type (Linux, BPF, DLPI, etc.), |
| 359 | * with the one used chosen by the configure script. |
| 360 | * |
| 361 | * "pcap_create_common()" allocates and fills in a pcap_t, for use |
| 362 | * by pcap_create routines. |
| 363 | */ |
| 364 | pcap_t *pcap_create_interface(const char *, char *); |
| 365 | pcap_t *pcap_create_common(const char *, char *, size_t); |
| 366 | int pcap_do_addexit(pcap_t *); |
| 367 | void pcap_add_to_pcaps_to_close(pcap_t *); |
| 368 | void pcap_remove_from_pcaps_to_close(pcap_t *); |
| 369 | void pcap_cleanup_live_common(pcap_t *); |
| 370 | int pcap_not_initialized(pcap_t *); |
| 371 | int pcap_check_activated(pcap_t *); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 372 | |
| 373 | /* |
| 374 | * Internal interfaces for "pcap_findalldevs()". |
| 375 | * |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 376 | * "pcap_findalldevs_interfaces()" finds interfaces using the |
| 377 | * "standard" mechanisms (SIOCGIFCONF, "getifaddrs()", etc.). |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 378 | * |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 379 | * "pcap_platform_finddevs()" is a platform-dependent routine to |
| 380 | * add devices not found by the "standard" mechanisms. |
| 381 | * |
| 382 | * "pcap_add_if()" adds an interface to the list of interfaces, for |
| 383 | * use by various "find interfaces" routines. |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 384 | */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 385 | int pcap_findalldevs_interfaces(pcap_if_t **, char *); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 386 | int pcap_platform_finddevs(pcap_if_t **, char *); |
| 387 | int add_addr_to_iflist(pcap_if_t **, const char *, u_int, struct sockaddr *, |
| 388 | size_t, struct sockaddr *, size_t, struct sockaddr *, size_t, |
| 389 | struct sockaddr *, size_t, char *); |
| 390 | int pcap_add_if(pcap_if_t **, const char *, u_int, const char *, char *); |
| 391 | struct sockaddr *dup_sockaddr(struct sockaddr *, size_t); |
| 392 | int add_or_find_if(pcap_if_t **, pcap_if_t **, const char *, u_int, |
| 393 | const char *, char *); |
| 394 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 395 | /* |
| 396 | * Internal interfaces for "pcap_open_offline()". |
| 397 | * |
| 398 | * "pcap_open_offline_common()" allocates and fills in a pcap_t, for use |
| 399 | * by pcap_open_offline routines. |
| 400 | * |
| 401 | * "sf_cleanup()" closes the file handle associated with a pcap_t, if |
| 402 | * appropriate, and frees all data common to all modules for handling |
| 403 | * savefile types. |
| 404 | */ |
| 405 | pcap_t *pcap_open_offline_common(char *ebuf, size_t size); |
| 406 | void sf_cleanup(pcap_t *p); |
| 407 | |
| 408 | /* |
| 409 | * Internal interfaces for both "pcap_create()" and routines that |
| 410 | * open savefiles. |
| 411 | * |
| 412 | * "pcap_oneshot()" is the standard one-shot callback for "pcap_next()" |
| 413 | * and "pcap_next_ex()". |
| 414 | */ |
| 415 | void pcap_oneshot(u_char *, const struct pcap_pkthdr *, const u_char *); |
| 416 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 417 | #ifdef WIN32 |
| 418 | char *pcap_win32strerror(void); |
| 419 | #endif |
| 420 | |
| 421 | int install_bpf_program(pcap_t *, struct bpf_program *); |
| 422 | |
| 423 | int pcap_strcasecmp(const char *, const char *); |
| 424 | |
| 425 | #ifdef __cplusplus |
| 426 | } |
| 427 | #endif |
| 428 | |
| 429 | #endif |