• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 /* -*- Mode: c; tab-width: 8; indent-tabs-mode: 1; c-basic-offset: 8; -*- */
2 /*
3  * Copyright (c) 1993, 1994, 1995, 1996, 1997
4  *	The Regents of the University of California.  All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. All advertising materials mentioning features or use of this software
15  *    must display the following acknowledgement:
16  *	This product includes software developed by the Computer Systems
17  *	Engineering Group at Lawrence Berkeley Laboratory.
18  * 4. Neither the name of the University nor of the Laboratory may be used
19  *    to endorse or promote products derived from this software without
20  *    specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  */
34 
35 #ifndef lib_pcap_pcap_h
36 #define lib_pcap_pcap_h
37 
38 #include <pcap/export-defs.h>
39 
40 #if defined(_WIN32)
41   #include <pcap-stdinc.h>
42 #elif defined(MSDOS)
43   #include <sys/types.h>
44   #include <sys/socket.h>  /* u_int, u_char etc. */
45 #else /* UN*X */
46   #include <sys/types.h>
47   #include <sys/time.h>
48 #endif /* _WIN32/MSDOS/UN*X */
49 
50 #ifndef PCAP_DONT_INCLUDE_PCAP_BPF_H
51 #include <pcap/bpf.h>
52 #endif
53 
54 #include <stdio.h>
55 
56 #ifdef __cplusplus
57 extern "C" {
58 #endif
59 
60 /*
61  * Version number of the current version of the pcap file format.
62  *
63  * NOTE: this is *NOT* the version number of the libpcap library.
64  * To fetch the version information for the version of libpcap
65  * you're using, use pcap_lib_version().
66  */
67 #define PCAP_VERSION_MAJOR 2
68 #define PCAP_VERSION_MINOR 4
69 
70 #define PCAP_ERRBUF_SIZE 256
71 
72 /*
73  * Compatibility for systems that have a bpf.h that
74  * predates the bpf typedefs for 64-bit support.
75  */
76 #if BPF_RELEASE - 0 < 199406
77 typedef	int bpf_int32;
78 typedef	u_int bpf_u_int32;
79 #endif
80 
81 typedef struct pcap pcap_t;
82 typedef struct pcap_dumper pcap_dumper_t;
83 typedef struct pcap_if pcap_if_t;
84 typedef struct pcap_addr pcap_addr_t;
85 
86 /*
87  * The first record in the file contains saved values for some
88  * of the flags used in the printout phases of tcpdump.
89  * Many fields here are 32 bit ints so compilers won't insert unwanted
90  * padding; these files need to be interchangeable across architectures.
91  *
92  * Do not change the layout of this structure, in any way (this includes
93  * changes that only affect the length of fields in this structure).
94  *
95  * Also, do not change the interpretation of any of the members of this
96  * structure, in any way (this includes using values other than
97  * LINKTYPE_ values, as defined in "savefile.c", in the "linktype"
98  * field).
99  *
100  * Instead:
101  *
102  *	introduce a new structure for the new format, if the layout
103  *	of the structure changed;
104  *
105  *	send mail to "tcpdump-workers@lists.tcpdump.org", requesting
106  *	a new magic number for your new capture file format, and, when
107  *	you get the new magic number, put it in "savefile.c";
108  *
109  *	use that magic number for save files with the changed file
110  *	header;
111  *
112  *	make the code in "savefile.c" capable of reading files with
113  *	the old file header as well as files with the new file header
114  *	(using the magic number to determine the header format).
115  *
116  * Then supply the changes by forking the branch at
117  *
118  *	https://github.com/the-tcpdump-group/libpcap/issues
119  *
120  * and issuing a pull request, so that future versions of libpcap and
121  * programs that use it (such as tcpdump) will be able to read your new
122  * capture file format.
123  */
124 struct pcap_file_header {
125 	bpf_u_int32 magic;
126 	u_short version_major;
127 	u_short version_minor;
128 	bpf_int32 thiszone;	/* gmt to local correction */
129 	bpf_u_int32 sigfigs;	/* accuracy of timestamps */
130 	bpf_u_int32 snaplen;	/* max length saved portion of each pkt */
131 	bpf_u_int32 linktype;	/* data link type (LINKTYPE_*) */
132 };
133 
134 /*
135  * Macros for the value returned by pcap_datalink_ext().
136  *
137  * If LT_FCS_LENGTH_PRESENT(x) is true, the LT_FCS_LENGTH(x) macro
138  * gives the FCS length of packets in the capture.
139  */
140 #define LT_FCS_LENGTH_PRESENT(x)	((x) & 0x04000000)
141 #define LT_FCS_LENGTH(x)		(((x) & 0xF0000000) >> 28)
142 #define LT_FCS_DATALINK_EXT(x)		((((x) & 0xF) << 28) | 0x04000000)
143 
144 typedef enum {
145        PCAP_D_INOUT = 0,
146        PCAP_D_IN,
147        PCAP_D_OUT
148 } pcap_direction_t;
149 
150 /*
151  * Generic per-packet information, as supplied by libpcap.
152  *
153  * The time stamp can and should be a "struct timeval", regardless of
154  * whether your system supports 32-bit tv_sec in "struct timeval",
155  * 64-bit tv_sec in "struct timeval", or both if it supports both 32-bit
156  * and 64-bit applications.  The on-disk format of savefiles uses 32-bit
157  * tv_sec (and tv_usec); this structure is irrelevant to that.  32-bit
158  * and 64-bit versions of libpcap, even if they're on the same platform,
159  * should supply the appropriate version of "struct timeval", even if
160  * that's not what the underlying packet capture mechanism supplies.
161  */
162 struct pcap_pkthdr {
163 	struct timeval ts;	/* time stamp */
164 	bpf_u_int32 caplen;	/* length of portion present */
165 	bpf_u_int32 len;	/* length this packet (off wire) */
166 };
167 
168 /*
169  * As returned by the pcap_stats()
170  */
171 struct pcap_stat {
172 	u_int ps_recv;		/* number of packets received */
173 	u_int ps_drop;		/* number of packets dropped */
174 	u_int ps_ifdrop;	/* drops by interface -- only supported on some platforms */
175 #if defined(_WIN32) && defined(HAVE_REMOTE)
176 	u_int ps_capt;		/* number of packets that reach the application */
177 	u_int ps_sent;		/* number of packets sent by the server on the network */
178 	u_int ps_netdrop;	/* number of packets lost on the network */
179 #endif /* _WIN32 && HAVE_REMOTE */
180 };
181 
182 #ifdef MSDOS
183 /*
184  * As returned by the pcap_stats_ex()
185  */
186 struct pcap_stat_ex {
187        u_long  rx_packets;        /* total packets received       */
188        u_long  tx_packets;        /* total packets transmitted    */
189        u_long  rx_bytes;          /* total bytes received         */
190        u_long  tx_bytes;          /* total bytes transmitted      */
191        u_long  rx_errors;         /* bad packets received         */
192        u_long  tx_errors;         /* packet transmit problems     */
193        u_long  rx_dropped;        /* no space in Rx buffers       */
194        u_long  tx_dropped;        /* no space available for Tx    */
195        u_long  multicast;         /* multicast packets received   */
196        u_long  collisions;
197 
198        /* detailed rx_errors: */
199        u_long  rx_length_errors;
200        u_long  rx_over_errors;    /* receiver ring buff overflow  */
201        u_long  rx_crc_errors;     /* recv'd pkt with crc error    */
202        u_long  rx_frame_errors;   /* recv'd frame alignment error */
203        u_long  rx_fifo_errors;    /* recv'r fifo overrun          */
204        u_long  rx_missed_errors;  /* recv'r missed packet         */
205 
206        /* detailed tx_errors */
207        u_long  tx_aborted_errors;
208        u_long  tx_carrier_errors;
209        u_long  tx_fifo_errors;
210        u_long  tx_heartbeat_errors;
211        u_long  tx_window_errors;
212      };
213 #endif
214 
215 /*
216  * Item in a list of interfaces.
217  */
218 struct pcap_if {
219 	struct pcap_if *next;
220 	char *name;		/* name to hand to "pcap_open_live()" */
221 	char *description;	/* textual description of interface, or NULL */
222 	struct pcap_addr *addresses;
223 	bpf_u_int32 flags;	/* PCAP_IF_ interface flags */
224 };
225 
226 #define PCAP_IF_LOOPBACK	0x00000001	/* interface is loopback */
227 #define PCAP_IF_UP		0x00000002	/* interface is up */
228 #define PCAP_IF_RUNNING		0x00000004	/* interface is running */
229 
230 /*
231  * Representation of an interface address.
232  */
233 struct pcap_addr {
234 	struct pcap_addr *next;
235 	struct sockaddr *addr;		/* address */
236 	struct sockaddr *netmask;	/* netmask for that address */
237 	struct sockaddr *broadaddr;	/* broadcast address for that address */
238 	struct sockaddr *dstaddr;	/* P2P destination address for that address */
239 };
240 
241 typedef void (*pcap_handler)(u_char *, const struct pcap_pkthdr *,
242 			     const u_char *);
243 
244 /*
245  * Error codes for the pcap API.
246  * These will all be negative, so you can check for the success or
247  * failure of a call that returns these codes by checking for a
248  * negative value.
249  */
250 #define PCAP_ERROR			-1	/* generic error code */
251 #define PCAP_ERROR_BREAK		-2	/* loop terminated by pcap_breakloop */
252 #define PCAP_ERROR_NOT_ACTIVATED	-3	/* the capture needs to be activated */
253 #define PCAP_ERROR_ACTIVATED		-4	/* the operation can't be performed on already activated captures */
254 #define PCAP_ERROR_NO_SUCH_DEVICE	-5	/* no such device exists */
255 #define PCAP_ERROR_RFMON_NOTSUP		-6	/* this device doesn't support rfmon (monitor) mode */
256 #define PCAP_ERROR_NOT_RFMON		-7	/* operation supported only in monitor mode */
257 #define PCAP_ERROR_PERM_DENIED		-8	/* no permission to open the device */
258 #define PCAP_ERROR_IFACE_NOT_UP		-9	/* interface isn't up */
259 #define PCAP_ERROR_CANTSET_TSTAMP_TYPE	-10	/* this device doesn't support setting the time stamp type */
260 #define PCAP_ERROR_PROMISC_PERM_DENIED	-11	/* you don't have permission to capture in promiscuous mode */
261 #define PCAP_ERROR_TSTAMP_PRECISION_NOTSUP -12  /* the requested time stamp precision is not supported */
262 
263 /*
264  * Warning codes for the pcap API.
265  * These will all be positive and non-zero, so they won't look like
266  * errors.
267  */
268 #define PCAP_WARNING			1	/* generic warning code */
269 #define PCAP_WARNING_PROMISC_NOTSUP	2	/* this device doesn't support promiscuous mode */
270 #define PCAP_WARNING_TSTAMP_TYPE_NOTSUP	3	/* the requested time stamp type is not supported */
271 
272 /*
273  * Value to pass to pcap_compile() as the netmask if you don't know what
274  * the netmask is.
275  */
276 #define PCAP_NETMASK_UNKNOWN	0xffffffff
277 
278 PCAP_API char	*pcap_lookupdev(char *);
279 PCAP_API int	pcap_lookupnet(const char *, bpf_u_int32 *, bpf_u_int32 *, char *);
280 
281 PCAP_API pcap_t	*pcap_create(const char *, char *);
282 PCAP_API int	pcap_set_snaplen(pcap_t *, int);
283 PCAP_API int	pcap_set_promisc(pcap_t *, int);
284 PCAP_API int	pcap_can_set_rfmon(pcap_t *);
285 PCAP_API int	pcap_set_rfmon(pcap_t *, int);
286 PCAP_API int	pcap_set_timeout(pcap_t *, int);
287 PCAP_API int	pcap_set_tstamp_type(pcap_t *, int);
288 PCAP_API int	pcap_set_immediate_mode(pcap_t *, int);
289 PCAP_API int	pcap_set_buffer_size(pcap_t *, int);
290 PCAP_API int	pcap_set_tstamp_precision(pcap_t *, int);
291 PCAP_API int	pcap_get_tstamp_precision(pcap_t *);
292 PCAP_API int	pcap_activate(pcap_t *);
293 
294 PCAP_API int	pcap_list_tstamp_types(pcap_t *, int **);
295 PCAP_API void	pcap_free_tstamp_types(int *);
296 PCAP_API int	pcap_tstamp_type_name_to_val(const char *);
297 PCAP_API const char *pcap_tstamp_type_val_to_name(int);
298 PCAP_API const char *pcap_tstamp_type_val_to_description(int);
299 
300 /*
301  * Time stamp types.
302  * Not all systems and interfaces will necessarily support all of these.
303  *
304  * A system that supports PCAP_TSTAMP_HOST is offering time stamps
305  * provided by the host machine, rather than by the capture device,
306  * but not committing to any characteristics of the time stamp;
307  * it will not offer any of the PCAP_TSTAMP_HOST_ subtypes.
308  *
309  * PCAP_TSTAMP_HOST_LOWPREC is a time stamp, provided by the host machine,
310  * that's low-precision but relatively cheap to fetch; it's normally done
311  * using the system clock, so it's normally synchronized with times you'd
312  * fetch from system calls.
313  *
314  * PCAP_TSTAMP_HOST_HIPREC is a time stamp, provided by the host machine,
315  * that's high-precision; it might be more expensive to fetch.  It might
316  * or might not be synchronized with the system clock, and might have
317  * problems with time stamps for packets received on different CPUs,
318  * depending on the platform.
319  *
320  * PCAP_TSTAMP_ADAPTER is a high-precision time stamp supplied by the
321  * capture device; it's synchronized with the system clock.
322  *
323  * PCAP_TSTAMP_ADAPTER_UNSYNCED is a high-precision time stamp supplied by
324  * the capture device; it's not synchronized with the system clock.
325  *
326  * Note that time stamps synchronized with the system clock can go
327  * backwards, as the system clock can go backwards.  If a clock is
328  * not in sync with the system clock, that could be because the
329  * system clock isn't keeping accurate time, because the other
330  * clock isn't keeping accurate time, or both.
331  *
332  * Note that host-provided time stamps generally correspond to the
333  * time when the time-stamping code sees the packet; this could
334  * be some unknown amount of time after the first or last bit of
335  * the packet is received by the network adapter, due to batching
336  * of interrupts for packet arrival, queueing delays, etc..
337  */
338 #define PCAP_TSTAMP_HOST		0	/* host-provided, unknown characteristics */
339 #define PCAP_TSTAMP_HOST_LOWPREC	1	/* host-provided, low precision */
340 #define PCAP_TSTAMP_HOST_HIPREC		2	/* host-provided, high precision */
341 #define PCAP_TSTAMP_ADAPTER		3	/* device-provided, synced with the system clock */
342 #define PCAP_TSTAMP_ADAPTER_UNSYNCED	4	/* device-provided, not synced with the system clock */
343 
344 /*
345  * Time stamp resolution types.
346  * Not all systems and interfaces will necessarily support all of these
347  * resolutions when doing live captures; all of them can be requested
348  * when reading a savefile.
349  */
350 #define PCAP_TSTAMP_PRECISION_MICRO	0	/* use timestamps with microsecond precision, default */
351 #define PCAP_TSTAMP_PRECISION_NANO	1	/* use timestamps with nanosecond precision */
352 
353 PCAP_API pcap_t	*pcap_open_live(const char *, int, int, int, char *);
354 PCAP_API pcap_t	*pcap_open_dead(int, int);
355 PCAP_API pcap_t	*pcap_open_dead_with_tstamp_precision(int, int, u_int);
356 PCAP_API pcap_t	*pcap_open_offline_with_tstamp_precision(const char *, u_int, char *);
357 PCAP_API pcap_t	*pcap_open_offline(const char *, char *);
358 #ifdef _WIN32
359   PCAP_API pcap_t  *pcap_hopen_offline_with_tstamp_precision(intptr_t, u_int, char *);
360   PCAP_API pcap_t  *pcap_hopen_offline(intptr_t, char *);
361   /*
362    * If we're building libpcap, these are internal routines in savefile.c,
363    * so we mustn't define them as macros.
364    */
365   #ifndef BUILDING_PCAP
366     #define pcap_fopen_offline_with_tstamp_precision(f,p,b) \
367 	pcap_hopen_offline_with_tstamp_precision(_get_osfhandle(_fileno(f)), p, b)
368     #define pcap_fopen_offline(f,b) \
369 	pcap_hopen_offline(_get_osfhandle(_fileno(f)), b)
370   #endif
371 #else /*_WIN32*/
372   PCAP_API pcap_t	*pcap_fopen_offline_with_tstamp_precision(FILE *, u_int, char *);
373   PCAP_API pcap_t	*pcap_fopen_offline(FILE *, char *);
374 #endif /*_WIN32*/
375 
376 PCAP_API void	pcap_close(pcap_t *);
377 PCAP_API int	pcap_loop(pcap_t *, int, pcap_handler, u_char *);
378 PCAP_API int	pcap_dispatch(pcap_t *, int, pcap_handler, u_char *);
379 PCAP_API const u_char *pcap_next(pcap_t *, struct pcap_pkthdr *);
380 PCAP_API int 	pcap_next_ex(pcap_t *, struct pcap_pkthdr **, const u_char **);
381 PCAP_API void	pcap_breakloop(pcap_t *);
382 PCAP_API int	pcap_stats(pcap_t *, struct pcap_stat *);
383 PCAP_API int	pcap_setfilter(pcap_t *, struct bpf_program *);
384 PCAP_API int 	pcap_setdirection(pcap_t *, pcap_direction_t);
385 PCAP_API int	pcap_getnonblock(pcap_t *, char *);
386 PCAP_API int	pcap_setnonblock(pcap_t *, int, char *);
387 PCAP_API int	pcap_inject(pcap_t *, const void *, size_t);
388 PCAP_API int	pcap_sendpacket(pcap_t *, const u_char *, int);
389 PCAP_API const char *pcap_statustostr(int);
390 PCAP_API const char *pcap_strerror(int);
391 PCAP_API char	*pcap_geterr(pcap_t *);
392 PCAP_API void	pcap_perror(pcap_t *, const char *);
393 PCAP_API int	pcap_compile(pcap_t *, struct bpf_program *, const char *, int,
394 	    bpf_u_int32);
395 PCAP_API int	pcap_compile_nopcap(int, int, struct bpf_program *,
396 	    const char *, int, bpf_u_int32);
397 PCAP_API void	pcap_freecode(struct bpf_program *);
398 PCAP_API int	pcap_offline_filter(const struct bpf_program *,
399 	    const struct pcap_pkthdr *, const u_char *);
400 PCAP_API int	pcap_datalink(pcap_t *);
401 PCAP_API int	pcap_datalink_ext(pcap_t *);
402 PCAP_API int	pcap_list_datalinks(pcap_t *, int **);
403 PCAP_API int	pcap_set_datalink(pcap_t *, int);
404 PCAP_API void	pcap_free_datalinks(int *);
405 PCAP_API int	pcap_datalink_name_to_val(const char *);
406 PCAP_API const char *pcap_datalink_val_to_name(int);
407 PCAP_API const char *pcap_datalink_val_to_description(int);
408 PCAP_API int	pcap_snapshot(pcap_t *);
409 PCAP_API int	pcap_is_swapped(pcap_t *);
410 PCAP_API int	pcap_major_version(pcap_t *);
411 PCAP_API int	pcap_minor_version(pcap_t *);
412 
413 /* XXX */
414 PCAP_API FILE	*pcap_file(pcap_t *);
415 PCAP_API int	pcap_fileno(pcap_t *);
416 
417 #ifdef _WIN32
418   PCAP_API int	pcap_wsockinit(void);
419 #endif
420 
421 PCAP_API pcap_dumper_t *pcap_dump_open(pcap_t *, const char *);
422 PCAP_API pcap_dumper_t *pcap_dump_fopen(pcap_t *, FILE *fp);
423 PCAP_API pcap_dumper_t *pcap_dump_open_append(pcap_t *, const char *);
424 PCAP_API FILE	*pcap_dump_file(pcap_dumper_t *);
425 PCAP_API long	pcap_dump_ftell(pcap_dumper_t *);
426 PCAP_API int	pcap_dump_flush(pcap_dumper_t *);
427 PCAP_API void	pcap_dump_close(pcap_dumper_t *);
428 PCAP_API void	pcap_dump(u_char *, const struct pcap_pkthdr *, const u_char *);
429 
430 PCAP_API int	pcap_findalldevs(pcap_if_t **, char *);
431 PCAP_API void	pcap_freealldevs(pcap_if_t *);
432 
433 PCAP_API const char *pcap_lib_version(void);
434 
435 /*
436  * On at least some versions of NetBSD and QNX, we don't want to declare
437  * bpf_filter() here, as it's also be declared in <net/bpf.h>, with a
438  * different signature, but, on other BSD-flavored UN*Xes, it's not
439  * declared in <net/bpf.h>, so we *do* want to declare it here, so it's
440  * declared when we build pcap-bpf.c.
441  */
442 #if !defined(__NetBSD__) && !defined(__QNX__)
443   PCAP_API u_int	bpf_filter(const struct bpf_insn *, const u_char *, u_int, u_int);
444 #endif
445 PCAP_API int	bpf_validate(const struct bpf_insn *f, int len);
446 PCAP_API char	*bpf_image(const struct bpf_insn *, int);
447 PCAP_API void	bpf_dump(const struct bpf_program *, int);
448 
449 #if defined(_WIN32)
450 
451   /*
452    * Win32 definitions
453    */
454 
455   /*!
456     \brief A queue of raw packets that will be sent to the network with pcap_sendqueue_transmit().
457   */
458   struct pcap_send_queue
459   {
460 	u_int maxlen;	/* Maximum size of the the queue, in bytes. This
461 			   variable contains the size of the buffer field. */
462 	u_int len;	/* Current size of the queue, in bytes. */
463 	char *buffer;	/* Buffer containing the packets to be sent. */
464   };
465 
466   typedef struct pcap_send_queue pcap_send_queue;
467 
468   /*!
469     \brief This typedef is a support for the pcap_get_airpcap_handle() function
470   */
471   #if !defined(AIRPCAP_HANDLE__EAE405F5_0171_9592_B3C2_C19EC426AD34__DEFINED_)
472     #define AIRPCAP_HANDLE__EAE405F5_0171_9592_B3C2_C19EC426AD34__DEFINED_
473     typedef struct _AirpcapHandle *PAirpcapHandle;
474   #endif
475 
476   PCAP_API int pcap_setbuff(pcap_t *p, int dim);
477   PCAP_API int pcap_setmode(pcap_t *p, int mode);
478   PCAP_API int pcap_setmintocopy(pcap_t *p, int size);
479 
480   PCAP_API HANDLE pcap_getevent(pcap_t *p);
481 
482   PCAP_API int pcap_oid_get_request(pcap_t *, bpf_u_int32, void *, size_t *);
483   PCAP_API int pcap_oid_set_request(pcap_t *, bpf_u_int32, const void *, size_t *);
484 
485   PCAP_API pcap_send_queue* pcap_sendqueue_alloc(u_int memsize);
486 
487   PCAP_API void pcap_sendqueue_destroy(pcap_send_queue* queue);
488 
489   PCAP_API int pcap_sendqueue_queue(pcap_send_queue* queue, const struct pcap_pkthdr *pkt_header, const u_char *pkt_data);
490 
491   PCAP_API u_int pcap_sendqueue_transmit(pcap_t *p, pcap_send_queue* queue, int sync);
492 
493   PCAP_API struct pcap_stat *pcap_stats_ex(pcap_t *p, int *pcap_stat_size);
494 
495   PCAP_API int pcap_setuserbuffer(pcap_t *p, int size);
496 
497   PCAP_API int pcap_live_dump(pcap_t *p, char *filename, int maxsize, int maxpacks);
498 
499   PCAP_API int pcap_live_dump_ended(pcap_t *p, int sync);
500 
501   PCAP_API int pcap_start_oem(char* err_str, int flags);
502 
503   PCAP_API PAirpcapHandle pcap_get_airpcap_handle(pcap_t *p);
504 
505   #define MODE_CAPT 0
506   #define MODE_STAT 1
507   #define MODE_MON 2
508 
509 #elif defined(MSDOS)
510 
511   /*
512    * MS-DOS definitions
513    */
514 
515   PCAP_API int  pcap_stats_ex (pcap_t *, struct pcap_stat_ex *);
516   PCAP_API void pcap_set_wait (pcap_t *p, void (*yield)(void), int wait);
517   PCAP_API u_long pcap_mac_packets (void);
518 
519 #else /* UN*X */
520 
521   /*
522    * UN*X definitions
523    */
524 
525   PCAP_API int	pcap_get_selectable_fd(pcap_t *);
526 
527 #endif /* _WIN32/MSDOS/UN*X */
528 
529 #ifdef HAVE_REMOTE
530   /* Includes most of the public stuff that is needed for the remote capture */
531   #include <remote-ext.h>
532 #endif	 /* HAVE_REMOTE */
533 
534 #ifdef __cplusplus
535 }
536 #endif
537 
538 #endif /* lib_pcap_pcap_h */
539