libpcap  1.10.1
About: libpcap is a packet filter library used by tools like tcpdump.
  Fossies Dox: libpcap-1.10.1.tar.gz  ("unofficial" and yet experimental doxygen-generated source code documentation)  

pcap.h
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3  * Copyright (c) 1993, 1994, 1995, 1996, 1997
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10  * notice, this list of conditions and the following disclaimer.
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16  * This product includes software developed by the Computer Systems
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34 
35 /*
36  * Remote packet capture mechanisms and extensions from WinPcap:
37  *
38  * Copyright (c) 2002 - 2003
39  * NetGroup, Politecnico di Torino (Italy)
40  * All rights reserved.
41  *
42  * Redistribution and use in source and binary forms, with or without
43  * modification, are permitted provided that the following conditions
44  * are met:
45  *
46  * 1. Redistributions of source code must retain the above copyright
47  * notice, this list of conditions and the following disclaimer.
48  * 2. Redistributions in binary form must reproduce the above copyright
49  * notice, this list of conditions and the following disclaimer in the
50  * documentation and/or other materials provided with the distribution.
51  * 3. Neither the name of the Politecnico di Torino nor the names of its
52  * contributors may be used to endorse or promote products derived from
53  * this software without specific prior written permission.
54  *
55  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
56  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
57  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
58  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
59  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
60  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
61  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
62  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
63  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
64  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
65  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
66  *
67  */
68 
69 #ifndef lib_pcap_pcap_h
70 #define lib_pcap_pcap_h
71 
72 /*
73  * Some software that uses libpcap/WinPcap/Npcap defines _MSC_VER before
74  * includeing pcap.h if it's not defined - and it defines it to 1500.
75  * (I'm looking at *you*, lwIP!)
76  *
77  * Attempt to detect this, and undefine _MSC_VER so that we can *reliably*
78  * use it to know what compiler is being used and, if it's Visual Studio,
79  * what version is being used.
80  */
81 #if defined(_MSC_VER)
82  /*
83  * We assume here that software such as that doesn't define _MSC_FULL_VER
84  * as well and that it defines _MSC_VER with a value > 1200.
85  *
86  * DO NOT BREAK THESE ASSUMPTIONS. IF YOU FEEL YOU MUST DEFINE _MSC_VER
87  * WITH A COMPILER THAT'S NOT MICROSOFT'S C COMPILER, PLEASE CONTACT
88  * US SO THAT WE CAN MAKE IT SO THAT YOU DON'T HAVE TO DO THAT. THANK
89  * YOU.
90  *
91  * OK, is _MSC_FULL_VER defined?
92  */
93  #if !defined(_MSC_FULL_VER)
94  /*
95  * According to
96  *
97  * https://sourceforge.net/p/predef/wiki/Compilers/
98  *
99  * with "Visual C++ 6.0 Processor Pack"/Visual C++ 6.0 SP6 and
100  * later, _MSC_FULL_VER is defined, so either this is an older
101  * version of Visual C++ or it's not Visual C++ at all.
102  *
103  * For Visual C++ 6.0, _MSC_VER is defined as 1200.
104  */
105  #if _MSC_VER > 1200
106  /*
107  * If this is Visual C++, _MSC_FULL_VER should be defined, so we
108  * assume this isn't Visual C++, and undo the lie that it is.
109  */
110  #undef _MSC_VER
111  #endif
112  #endif
113 #endif
114 
115 #include <pcap/funcattrs.h>
116 
117 #include <pcap/pcap-inttypes.h>
118 
119 #if defined(_WIN32)
120  #include <winsock2.h> /* u_int, u_char etc. */
121  #include <io.h> /* _get_osfhandle() */
122 #elif defined(MSDOS)
123  #include <sys/types.h> /* u_int, u_char etc. */
124  #include <sys/socket.h>
125 #else /* UN*X */
126  #include <sys/types.h> /* u_int, u_char etc. */
127  #include <sys/time.h>
128 #endif /* _WIN32/MSDOS/UN*X */
129 
130 #include <pcap/socket.h> /* for SOCKET, as the active-mode rpcap APIs use it */
131 
132 #ifndef PCAP_DONT_INCLUDE_PCAP_BPF_H
133 #include <pcap/bpf.h>
134 #endif
135 
136 #include <stdio.h>
137 
138 #ifdef __cplusplus
139 extern "C" {
140 #endif
141 
142 /*
143  * Version number of the current version of the pcap file format.
144  *
145  * NOTE: this is *NOT* the version number of the libpcap library.
146  * To fetch the version information for the version of libpcap
147  * you're using, use pcap_lib_version().
148  */
149 #define PCAP_VERSION_MAJOR 2
150 #define PCAP_VERSION_MINOR 4
151 
152 #define PCAP_ERRBUF_SIZE 256
153 
154 /*
155  * Compatibility for systems that have a bpf.h that
156  * predates the bpf typedefs for 64-bit support.
157  */
158 #if BPF_RELEASE - 0 < 199406
159 typedef int bpf_int32;
160 typedef u_int bpf_u_int32;
161 #endif
162 
163 typedef struct pcap pcap_t;
164 typedef struct pcap_dumper pcap_dumper_t;
165 typedef struct pcap_if pcap_if_t;
166 typedef struct pcap_addr pcap_addr_t;
167 
168 /*
169  * The first record in the file contains saved values for some
170  * of the flags used in the printout phases of tcpdump.
171  * Many fields here are 32 bit ints so compilers won't insert unwanted
172  * padding; these files need to be interchangeable across architectures.
173  * Documentation: https://www.tcpdump.org/manpages/pcap-savefile.5.txt.
174  *
175  * Do not change the layout of this structure, in any way (this includes
176  * changes that only affect the length of fields in this structure).
177  *
178  * Also, do not change the interpretation of any of the members of this
179  * structure, in any way (this includes using values other than
180  * LINKTYPE_ values, as defined in "savefile.c", in the "linktype"
181  * field).
182  *
183  * Instead:
184  *
185  * introduce a new structure for the new format, if the layout
186  * of the structure changed;
187  *
188  * send mail to "tcpdump-workers@lists.tcpdump.org", requesting
189  * a new magic number for your new capture file format, and, when
190  * you get the new magic number, put it in "savefile.c";
191  *
192  * use that magic number for save files with the changed file
193  * header;
194  *
195  * make the code in "savefile.c" capable of reading files with
196  * the old file header as well as files with the new file header
197  * (using the magic number to determine the header format).
198  *
199  * Then supply the changes by forking the branch at
200  *
201  * https://github.com/the-tcpdump-group/libpcap/tree/master
202  *
203  * and issuing a pull request, so that future versions of libpcap and
204  * programs that use it (such as tcpdump) will be able to read your new
205  * capture file format.
206  */
209  u_short version_major;
210  u_short version_minor;
211  bpf_int32 thiszone; /* gmt to local correction; this is always 0 */
212  bpf_u_int32 sigfigs; /* accuracy of timestamps; this is always 0 */
213  bpf_u_int32 snaplen; /* max length saved portion of each pkt */
214  bpf_u_int32 linktype; /* data link type (LINKTYPE_*) */
215 };
216 
217 /*
218  * Macros for the value returned by pcap_datalink_ext().
219  *
220  * If LT_FCS_LENGTH_PRESENT(x) is true, the LT_FCS_LENGTH(x) macro
221  * gives the FCS length of packets in the capture.
222  */
223 #define LT_FCS_LENGTH_PRESENT(x) ((x) & 0x04000000)
224 #define LT_FCS_LENGTH(x) (((x) & 0xF0000000) >> 28)
225 #define LT_FCS_DATALINK_EXT(x) ((((x) & 0xF) << 28) | 0x04000000)
226 
227 typedef enum {
230  PCAP_D_OUT
232 
233 /*
234  * Generic per-packet information, as supplied by libpcap.
235  *
236  * The time stamp can and should be a "struct timeval", regardless of
237  * whether your system supports 32-bit tv_sec in "struct timeval",
238  * 64-bit tv_sec in "struct timeval", or both if it supports both 32-bit
239  * and 64-bit applications. The on-disk format of savefiles uses 32-bit
240  * tv_sec (and tv_usec); this structure is irrelevant to that. 32-bit
241  * and 64-bit versions of libpcap, even if they're on the same platform,
242  * should supply the appropriate version of "struct timeval", even if
243  * that's not what the underlying packet capture mechanism supplies.
244  */
245 struct pcap_pkthdr {
246  struct timeval ts; /* time stamp */
247  bpf_u_int32 caplen; /* length of portion present */
248  bpf_u_int32 len; /* length of this packet (off wire) */
249 };
250 
251 /*
252  * As returned by the pcap_stats()
253  */
254 struct pcap_stat {
255  u_int ps_recv; /* number of packets received */
256  u_int ps_drop; /* number of packets dropped */
257  u_int ps_ifdrop; /* drops by interface -- only supported on some platforms */
258 #ifdef _WIN32
259  u_int ps_capt; /* number of packets that reach the application */
260  u_int ps_sent; /* number of packets sent by the server on the network */
261  u_int ps_netdrop; /* number of packets lost on the network */
262 #endif /* _WIN32 */
263 };
264 
265 #ifdef MSDOS
266 /*
267  * As returned by the pcap_stats_ex()
268  */
269 struct pcap_stat_ex {
270  u_long rx_packets; /* total packets received */
271  u_long tx_packets; /* total packets transmitted */
272  u_long rx_bytes; /* total bytes received */
273  u_long tx_bytes; /* total bytes transmitted */
274  u_long rx_errors; /* bad packets received */
275  u_long tx_errors; /* packet transmit problems */
276  u_long rx_dropped; /* no space in Rx buffers */
277  u_long tx_dropped; /* no space available for Tx */
278  u_long multicast; /* multicast packets received */
279  u_long collisions;
280 
281  /* detailed rx_errors: */
282  u_long rx_length_errors;
283  u_long rx_over_errors; /* receiver ring buff overflow */
284  u_long rx_crc_errors; /* recv'd pkt with crc error */
285  u_long rx_frame_errors; /* recv'd frame alignment error */
286  u_long rx_fifo_errors; /* recv'r fifo overrun */
287  u_long rx_missed_errors; /* recv'r missed packet */
288 
289  /* detailed tx_errors */
290  u_long tx_aborted_errors;
291  u_long tx_carrier_errors;
292  u_long tx_fifo_errors;
293  u_long tx_heartbeat_errors;
294  u_long tx_window_errors;
295  };
296 #endif
297 
298 /*
299  * Item in a list of interfaces.
300  */
301 struct pcap_if {
302  struct pcap_if *next;
303  char *name; /* name to hand to "pcap_open_live()" */
304  char *description; /* textual description of interface, or NULL */
306  bpf_u_int32 flags; /* PCAP_IF_ interface flags */
307 };
308 
309 #define PCAP_IF_LOOPBACK 0x00000001 /* interface is loopback */
310 #define PCAP_IF_UP 0x00000002 /* interface is up */
311 #define PCAP_IF_RUNNING 0x00000004 /* interface is running */
312 #define PCAP_IF_WIRELESS 0x00000008 /* interface is wireless (*NOT* necessarily Wi-Fi!) */
313 #define PCAP_IF_CONNECTION_STATUS 0x00000030 /* connection status: */
314 #define PCAP_IF_CONNECTION_STATUS_UNKNOWN 0x00000000 /* unknown */
315 #define PCAP_IF_CONNECTION_STATUS_CONNECTED 0x00000010 /* connected */
316 #define PCAP_IF_CONNECTION_STATUS_DISCONNECTED 0x00000020 /* disconnected */
317 #define PCAP_IF_CONNECTION_STATUS_NOT_APPLICABLE 0x00000030 /* not applicable */
318 
319 /*
320  * Representation of an interface address.
321  */
322 struct pcap_addr {
323  struct pcap_addr *next;
324  struct sockaddr *addr; /* address */
325  struct sockaddr *netmask; /* netmask for that address */
326  struct sockaddr *broadaddr; /* broadcast address for that address */
327  struct sockaddr *dstaddr; /* P2P destination address for that address */
328 };
329 
330 typedef void (*pcap_handler)(u_char *, const struct pcap_pkthdr *,
331  const u_char *);
332 
333 /*
334  * Error codes for the pcap API.
335  * These will all be negative, so you can check for the success or
336  * failure of a call that returns these codes by checking for a
337  * negative value.
338  */
339 #define PCAP_ERROR -1 /* generic error code */
340 #define PCAP_ERROR_BREAK -2 /* loop terminated by pcap_breakloop */
341 #define PCAP_ERROR_NOT_ACTIVATED -3 /* the capture needs to be activated */
342 #define PCAP_ERROR_ACTIVATED -4 /* the operation can't be performed on already activated captures */
343 #define PCAP_ERROR_NO_SUCH_DEVICE -5 /* no such device exists */
344 #define PCAP_ERROR_RFMON_NOTSUP -6 /* this device doesn't support rfmon (monitor) mode */
345 #define PCAP_ERROR_NOT_RFMON -7 /* operation supported only in monitor mode */
346 #define PCAP_ERROR_PERM_DENIED -8 /* no permission to open the device */
347 #define PCAP_ERROR_IFACE_NOT_UP -9 /* interface isn't up */
348 #define PCAP_ERROR_CANTSET_TSTAMP_TYPE -10 /* this device doesn't support setting the time stamp type */
349 #define PCAP_ERROR_PROMISC_PERM_DENIED -11 /* you don't have permission to capture in promiscuous mode */
350 #define PCAP_ERROR_TSTAMP_PRECISION_NOTSUP -12 /* the requested time stamp precision is not supported */
351 
352 /*
353  * Warning codes for the pcap API.
354  * These will all be positive and non-zero, so they won't look like
355  * errors.
356  */
357 #define PCAP_WARNING 1 /* generic warning code */
358 #define PCAP_WARNING_PROMISC_NOTSUP 2 /* this device doesn't support promiscuous mode */
359 #define PCAP_WARNING_TSTAMP_TYPE_NOTSUP 3 /* the requested time stamp type is not supported */
360 
361 /*
362  * Value to pass to pcap_compile() as the netmask if you don't know what
363  * the netmask is.
364  */
365 #define PCAP_NETMASK_UNKNOWN 0xffffffff
366 
367 /*
368  * Initialize pcap. If this isn't called, pcap is initialized to
369  * a mode source-compatible and binary-compatible with older versions
370  * that lack this routine.
371  */
372 
373 /*
374  * Initialization options.
375  * All bits not listed here are reserved for expansion.
376  *
377  * On UNIX-like systems, the local character encoding is assumed to be
378  * UTF-8, so no character encoding transformations are done.
379  *
380  * On Windows, the local character encoding is the local ANSI code page.
381  */
382 #define PCAP_CHAR_ENC_LOCAL 0x00000000U /* strings are in the local character encoding */
383 #define PCAP_CHAR_ENC_UTF_8 0x00000001U /* strings are in UTF-8 */
384 
386 PCAP_API int pcap_init(unsigned int, char *);
387 
388 /*
389  * We're deprecating pcap_lookupdev() for various reasons (not
390  * thread-safe, can behave weirdly with WinPcap). Callers
391  * should use pcap_findalldevs() and use the first device.
392  */
394 PCAP_API char *pcap_lookupdev(char *)
395 PCAP_DEPRECATED(pcap_lookupdev, "use 'pcap_findalldevs' and use the first device");
396 
398 PCAP_API int pcap_lookupnet(const char *, bpf_u_int32 *, bpf_u_int32 *, char *);
399 
401 PCAP_API pcap_t *pcap_create(const char *, char *);
402 
404 PCAP_API int pcap_set_snaplen(pcap_t *, int);
405 
407 PCAP_API int pcap_set_promisc(pcap_t *, int);
408 
411 
413 PCAP_API int pcap_set_rfmon(pcap_t *, int);
414 
416 PCAP_API int pcap_set_timeout(pcap_t *, int);
417 
420 
423 
426 
429 
432 
435 
437 PCAP_API int pcap_list_tstamp_types(pcap_t *, int **);
438 
440 PCAP_API void pcap_free_tstamp_types(int *);
441 
443 PCAP_API int pcap_tstamp_type_name_to_val(const char *);
444 
446 PCAP_API const char *pcap_tstamp_type_val_to_name(int);
447 
450 
451 #ifdef __linux__
454 #endif
455 
456 /*
457  * Time stamp types.
458  * Not all systems and interfaces will necessarily support all of these.
459  *
460  * A system that supports PCAP_TSTAMP_HOST is offering time stamps
461  * provided by the host machine, rather than by the capture device,
462  * but not committing to any characteristics of the time stamp.
463  *
464  * PCAP_TSTAMP_HOST_LOWPREC is a time stamp, provided by the host machine,
465  * that's low-precision but relatively cheap to fetch; it's normally done
466  * using the system clock, so it's normally synchronized with times you'd
467  * fetch from system calls.
468  *
469  * PCAP_TSTAMP_HOST_HIPREC is a time stamp, provided by the host machine,
470  * that's high-precision; it might be more expensive to fetch. It is
471  * synchronized with the system clock.
472  *
473  * PCAP_TSTAMP_HOST_HIPREC_UNSYNCED is a time stamp, provided by the host
474  * machine, that's high-precision; it might be more expensive to fetch.
475  * It is not synchronized with the system clock, and might have
476  * problems with time stamps for packets received on different CPUs,
477  * depending on the platform. It might be more likely to be strictly
478  * monotonic than PCAP_TSTAMP_HOST_HIPREC.
479  *
480  * PCAP_TSTAMP_ADAPTER is a high-precision time stamp supplied by the
481  * capture device; it's synchronized with the system clock.
482  *
483  * PCAP_TSTAMP_ADAPTER_UNSYNCED is a high-precision time stamp supplied by
484  * the capture device; it's not synchronized with the system clock.
485  *
486  * Note that time stamps synchronized with the system clock can go
487  * backwards, as the system clock can go backwards. If a clock is
488  * not in sync with the system clock, that could be because the
489  * system clock isn't keeping accurate time, because the other
490  * clock isn't keeping accurate time, or both.
491  *
492  * Note that host-provided time stamps generally correspond to the
493  * time when the time-stamping code sees the packet; this could
494  * be some unknown amount of time after the first or last bit of
495  * the packet is received by the network adapter, due to batching
496  * of interrupts for packet arrival, queueing delays, etc..
497  */
498 #define PCAP_TSTAMP_HOST 0 /* host-provided, unknown characteristics */
499 #define PCAP_TSTAMP_HOST_LOWPREC 1 /* host-provided, low precision, synced with the system clock */
500 #define PCAP_TSTAMP_HOST_HIPREC 2 /* host-provided, high precision, synced with the system clock */
501 #define PCAP_TSTAMP_ADAPTER 3 /* device-provided, synced with the system clock */
502 #define PCAP_TSTAMP_ADAPTER_UNSYNCED 4 /* device-provided, not synced with the system clock */
503 #define PCAP_TSTAMP_HOST_HIPREC_UNSYNCED 5 /* host-provided, high precision, not synced with the system clock */
504 
505 /*
506  * Time stamp resolution types.
507  * Not all systems and interfaces will necessarily support all of these
508  * resolutions when doing live captures; all of them can be requested
509  * when reading a savefile.
510  */
511 #define PCAP_TSTAMP_PRECISION_MICRO 0 /* use timestamps with microsecond precision, default */
512 #define PCAP_TSTAMP_PRECISION_NANO 1 /* use timestamps with nanosecond precision */
513 
515 PCAP_API pcap_t *pcap_open_live(const char *, int, int, int, char *);
516 
518 PCAP_API pcap_t *pcap_open_dead(int, int);
519 
522 
524 PCAP_API pcap_t *pcap_open_offline_with_tstamp_precision(const char *, u_int, char *);
525 
527 PCAP_API pcap_t *pcap_open_offline(const char *, char *);
528 
529 #ifdef _WIN32
531  PCAP_API pcap_t *pcap_hopen_offline_with_tstamp_precision(intptr_t, u_int, char *);
532 
533  PCAP_API pcap_t *pcap_hopen_offline(intptr_t, char *);
534  /*
535  * If we're building libpcap, these are internal routines in savefile.c,
536  * so we must not define them as macros.
537  *
538  * If we're not building libpcap, given that the version of the C runtime
539  * with which libpcap was built might be different from the version
540  * of the C runtime with which an application using libpcap was built,
541  * and that a FILE structure may differ between the two versions of the
542  * C runtime, calls to _fileno() must use the version of _fileno() in
543  * the C runtime used to open the FILE *, not the version in the C
544  * runtime with which libpcap was built. (Maybe once the Universal CRT
545  * rules the world, this will cease to be a problem.)
546  */
547  #ifndef BUILDING_PCAP
548  #define pcap_fopen_offline_with_tstamp_precision(f,p,b) \
549  pcap_hopen_offline_with_tstamp_precision(_get_osfhandle(_fileno(f)), p, b)
550  #define pcap_fopen_offline(f,b) \
551  pcap_hopen_offline(_get_osfhandle(_fileno(f)), b)
552  #endif
553 #else /*_WIN32*/
556 
558  PCAP_API pcap_t *pcap_fopen_offline(FILE *, char *);
559 #endif /*_WIN32*/
560 
562 PCAP_API void pcap_close(pcap_t *);
563 
565 PCAP_API int pcap_loop(pcap_t *, int, pcap_handler, u_char *);
566 
568 PCAP_API int pcap_dispatch(pcap_t *, int, pcap_handler, u_char *);
569 
571 PCAP_API const u_char *pcap_next(pcap_t *, struct pcap_pkthdr *);
572 
574 PCAP_API int pcap_next_ex(pcap_t *, struct pcap_pkthdr **, const u_char **);
575 
578 
580 PCAP_API int pcap_stats(pcap_t *, struct pcap_stat *);
581 
583 PCAP_API int pcap_setfilter(pcap_t *, struct bpf_program *);
584 
587 
589 PCAP_API int pcap_getnonblock(pcap_t *, char *);
590 
592 PCAP_API int pcap_setnonblock(pcap_t *, int, char *);
593 
595 PCAP_API int pcap_inject(pcap_t *, const void *, size_t);
596 
598 PCAP_API int pcap_sendpacket(pcap_t *, const u_char *, int);
599 
601 PCAP_API const char *pcap_statustostr(int);
602 
604 PCAP_API const char *pcap_strerror(int);
605 
607 PCAP_API char *pcap_geterr(pcap_t *);
608 
610 PCAP_API void pcap_perror(pcap_t *, const char *);
611 
613 PCAP_API int pcap_compile(pcap_t *, struct bpf_program *, const char *, int,
614  bpf_u_int32);
615 
617 PCAP_API int pcap_compile_nopcap(int, int, struct bpf_program *,
618  const char *, int, bpf_u_int32);
619 
620 /* XXX - this took two arguments in 0.4 and 0.5 */
622 PCAP_API void pcap_freecode(struct bpf_program *);
623 
625 PCAP_API int pcap_offline_filter(const struct bpf_program *,
626  const struct pcap_pkthdr *, const u_char *);
627 
630 
633 
635 PCAP_API int pcap_list_datalinks(pcap_t *, int **);
636 
638 PCAP_API int pcap_set_datalink(pcap_t *, int);
639 
641 PCAP_API void pcap_free_datalinks(int *);
642 
644 PCAP_API int pcap_datalink_name_to_val(const char *);
645 
647 PCAP_API const char *pcap_datalink_val_to_name(int);
648 
651 
654 
657 
660 
663 
666 
669 
670 /* XXX */
672 PCAP_API FILE *pcap_file(pcap_t *);
673 
674 #ifdef _WIN32
675 /*
676  * This probably shouldn't have been kept in WinPcap; most if not all
677  * UN*X code that used it won't work on Windows. We deprecate it; if
678  * anybody really needs access to whatever HANDLE may be associated
679  * with a pcap_t (there's no guarantee that there is one), we can add
680  * a Windows-only pcap_handle() API that returns the HANDLE.
681  */
684 PCAP_DEPRECATED(pcap_fileno, "use 'pcap_handle'");
685 #else /* _WIN32 */
688 #endif /* _WIN32 */
689 
690 #ifdef _WIN32
691  PCAP_API int pcap_wsockinit(void);
692 #endif
693 
695 PCAP_API pcap_dumper_t *pcap_dump_open(pcap_t *, const char *);
696 
697 #ifdef _WIN32
699  PCAP_API pcap_dumper_t *pcap_dump_hopen(pcap_t *, intptr_t);
700 
701  /*
702  * If we're building libpcap, this is an internal routine in sf-pcap.c, so
703  * we must not define it as a macro.
704  *
705  * If we're not building libpcap, given that the version of the C runtime
706  * with which libpcap was built might be different from the version
707  * of the C runtime with which an application using libpcap was built,
708  * and that a FILE structure may differ between the two versions of the
709  * C runtime, calls to _fileno() must use the version of _fileno() in
710  * the C runtime used to open the FILE *, not the version in the C
711  * runtime with which libpcap was built. (Maybe once the Universal CRT
712  * rules the world, this will cease to be a problem.)
713  */
714  #ifndef BUILDING_PCAP
715  #define pcap_dump_fopen(p,f) \
716  pcap_dump_hopen(p, _get_osfhandle(_fileno(f)))
717  #endif
718 #else /*_WIN32*/
721 #endif /*_WIN32*/
722 
725 
728 
731 
734 
737 
740 
742 PCAP_API void pcap_dump(u_char *, const struct pcap_pkthdr *, const u_char *);
743 
745 PCAP_API int pcap_findalldevs(pcap_if_t **, char *);
746 
749 
750 /*
751  * We return a pointer to the version string, rather than exporting the
752  * version string directly.
753  *
754  * On at least some UNIXes, if you import data from a shared library into
755  * a program, the data is bound into the program binary, so if the string
756  * in the version of the library with which the program was linked isn't
757  * the same as the string in the version of the library with which the
758  * program is being run, various undesirable things may happen (warnings,
759  * the string being the one from the version of the library with which the
760  * program was linked, or even weirder things, such as the string being the
761  * one from the library but being truncated).
762  *
763  * On Windows, the string is constructed at run time.
764  */
766 PCAP_API const char *pcap_lib_version(void);
767 
768 #if defined(_WIN32)
769 
770  /*
771  * Win32 definitions
772  */
773 
774  /*!
775  \brief A queue of raw packets that will be sent to the network with pcap_sendqueue_transmit().
776  */
777  struct pcap_send_queue
778  {
779  u_int maxlen; /* Maximum size of the queue, in bytes. This
780  variable contains the size of the buffer field. */
781  u_int len; /* Current size of the queue, in bytes. */
782  char *buffer; /* Buffer containing the packets to be sent. */
783  };
784 
785  typedef struct pcap_send_queue pcap_send_queue;
786 
787  /*!
788  \brief This typedef is a support for the pcap_get_airpcap_handle() function
789  */
790  #if !defined(AIRPCAP_HANDLE__EAE405F5_0171_9592_B3C2_C19EC426AD34__DEFINED_)
791  #define AIRPCAP_HANDLE__EAE405F5_0171_9592_B3C2_C19EC426AD34__DEFINED_
792  typedef struct _AirpcapHandle *PAirpcapHandle;
793  #endif
794 
795  PCAP_API int pcap_setbuff(pcap_t *p, int dim);
796  PCAP_API int pcap_setmode(pcap_t *p, int mode);
797  PCAP_API int pcap_setmintocopy(pcap_t *p, int size);
798 
799  PCAP_API HANDLE pcap_getevent(pcap_t *p);
800 
802  PCAP_API int pcap_oid_get_request(pcap_t *, bpf_u_int32, void *, size_t *);
803 
805  PCAP_API int pcap_oid_set_request(pcap_t *, bpf_u_int32, const void *, size_t *);
806 
807  PCAP_API pcap_send_queue* pcap_sendqueue_alloc(u_int memsize);
808 
809  PCAP_API void pcap_sendqueue_destroy(pcap_send_queue* queue);
810 
811  PCAP_API int pcap_sendqueue_queue(pcap_send_queue* queue, const struct pcap_pkthdr *pkt_header, const u_char *pkt_data);
812 
813  PCAP_API u_int pcap_sendqueue_transmit(pcap_t *p, pcap_send_queue* queue, int sync);
814 
815  PCAP_API struct pcap_stat *pcap_stats_ex(pcap_t *p, int *pcap_stat_size);
816 
817  PCAP_API int pcap_setuserbuffer(pcap_t *p, int size);
818 
819  PCAP_API int pcap_live_dump(pcap_t *p, char *filename, int maxsize, int maxpacks);
820 
821  PCAP_API int pcap_live_dump_ended(pcap_t *p, int sync);
822 
823  PCAP_API int pcap_start_oem(char* err_str, int flags);
824 
825  PCAP_API PAirpcapHandle pcap_get_airpcap_handle(pcap_t *p);
826 
827  #define MODE_CAPT 0
828  #define MODE_STAT 1
829  #define MODE_MON 2
830 
831 #elif defined(MSDOS)
832 
833  /*
834  * MS-DOS definitions
835  */
836 
837  PCAP_API int pcap_stats_ex (pcap_t *, struct pcap_stat_ex *);
838  PCAP_API void pcap_set_wait (pcap_t *p, void (*yield)(void), int wait);
839  PCAP_API u_long pcap_mac_packets (void);
840 
841 #else /* UN*X */
842 
843  /*
844  * UN*X definitions
845  */
846 
849 
851  PCAP_API const struct timeval *pcap_get_required_select_timeout(pcap_t *);
852 
853 #endif /* _WIN32/MSDOS/UN*X */
854 
855 /*
856  * Remote capture definitions.
857  *
858  * These routines are only present if libpcap has been configured to
859  * include remote capture support.
860  */
861 
862 /*
863  * The maximum buffer size in which address, port, interface names are kept.
864  *
865  * In case the adapter name or such is larger than this value, it is truncated.
866  * This is not used by the user; however it must be aware that an hostname / interface
867  * name longer than this value will be truncated.
868  */
869 #define PCAP_BUF_SIZE 1024
870 
871 /*
872  * The type of input source, passed to pcap_open().
873  */
874 #define PCAP_SRC_FILE 2 /* local savefile */
875 #define PCAP_SRC_IFLOCAL 3 /* local network interface */
876 #define PCAP_SRC_IFREMOTE 4 /* interface on a remote host, using RPCAP */
877 
878 /*
879  * The formats allowed by pcap_open() are the following:
880  * - file://path_and_filename [opens a local file]
881  * - rpcap://devicename [opens the selected device devices available on the local host, without using the RPCAP protocol]
882  * - rpcap://host/devicename [opens the selected device available on a remote host]
883  * - rpcap://host:port/devicename [opens the selected device available on a remote host, using a non-standard port for RPCAP]
884  * - adaptername [to open a local adapter; kept for compatibility, but it is strongly discouraged]
885  * - (NULL) [to open the first local adapter; kept for compatibility, but it is strongly discouraged]
886  *
887  * The formats allowed by the pcap_findalldevs_ex() are the following:
888  * - file://folder/ [lists all the files in the given folder]
889  * - rpcap:// [lists all local adapters]
890  * - rpcap://host:port/ [lists the devices available on a remote host]
891  *
892  * In all the above, "rpcaps://" can be substituted for "rpcap://" to enable
893  * SSL (if it has been compiled in).
894  *
895  * Referring to the 'host' and 'port' parameters, they can be either numeric or literal. Since
896  * IPv6 is fully supported, these are the allowed formats:
897  *
898  * - host (literal): e.g. host.foo.bar
899  * - host (numeric IPv4): e.g. 10.11.12.13
900  * - host (numeric IPv4, IPv6 style): e.g. [10.11.12.13]
901  * - host (numeric IPv6): e.g. [1:2:3::4]
902  * - port: can be either numeric (e.g. '80') or literal (e.g. 'http')
903  *
904  * Here you find some allowed examples:
905  * - rpcap://host.foo.bar/devicename [everything literal, no port number]
906  * - rpcap://host.foo.bar:1234/devicename [everything literal, with port number]
907  * - rpcap://10.11.12.13/devicename [IPv4 numeric, no port number]
908  * - rpcap://10.11.12.13:1234/devicename [IPv4 numeric, with port number]
909  * - rpcap://[10.11.12.13]:1234/devicename [IPv4 numeric with IPv6 format, with port number]
910  * - rpcap://[1:2:3::4]/devicename [IPv6 numeric, no port number]
911  * - rpcap://[1:2:3::4]:1234/devicename [IPv6 numeric, with port number]
912  * - rpcap://[1:2:3::4]:http/devicename [IPv6 numeric, with literal port number]
913  */
914 
915 /*
916  * URL schemes for capture source.
917  */
918 /*
919  * This string indicates that the user wants to open a capture from a
920  * local file.
921  */
922 #define PCAP_SRC_FILE_STRING "file://"
923 /*
924  * This string indicates that the user wants to open a capture from a
925  * network interface. This string does not necessarily involve the use
926  * of the RPCAP protocol. If the interface required resides on the local
927  * host, the RPCAP protocol is not involved and the local functions are used.
928  */
929 #define PCAP_SRC_IF_STRING "rpcap://"
930 
931 /*
932  * Flags to pass to pcap_open().
933  */
934 
935 /*
936  * Specifies whether promiscuous mode is to be used.
937  */
938 #define PCAP_OPENFLAG_PROMISCUOUS 0x00000001
939 
940 /*
941  * Specifies, for an RPCAP capture, whether the data transfer (in
942  * case of a remote capture) has to be done with UDP protocol.
943  *
944  * If it is '1' if you want a UDP data connection, '0' if you want
945  * a TCP data connection; control connection is always TCP-based.
946  * A UDP connection is much lighter, but it does not guarantee that all
947  * the captured packets arrive to the client workstation. Moreover,
948  * it could be harmful in case of network congestion.
949  * This flag is meaningless if the source is not a remote interface.
950  * In that case, it is simply ignored.
951  */
952 #define PCAP_OPENFLAG_DATATX_UDP 0x00000002
953 
954 /*
955  * Specifies whether the remote probe will capture its own generated
956  * traffic.
957  *
958  * In case the remote probe uses the same interface to capture traffic
959  * and to send data back to the caller, the captured traffic includes
960  * the RPCAP traffic as well. If this flag is turned on, the RPCAP
961  * traffic is excluded from the capture, so that the trace returned
962  * back to the collector is does not include this traffic.
963  *
964  * Has no effect on local interfaces or savefiles.
965  */
966 #define PCAP_OPENFLAG_NOCAPTURE_RPCAP 0x00000004
967 
968 /*
969  * Specifies whether the local adapter will capture its own generated traffic.
970  *
971  * This flag tells the underlying capture driver to drop the packets
972  * that were sent by itself. This is useful when building applications
973  * such as bridges that should ignore the traffic they just sent.
974  *
975  * Supported only on Windows.
976  */
977 #define PCAP_OPENFLAG_NOCAPTURE_LOCAL 0x00000008
978 
979 /*
980  * This flag configures the adapter for maximum responsiveness.
981  *
982  * In presence of a large value for nbytes, WinPcap waits for the arrival
983  * of several packets before copying the data to the user. This guarantees
984  * a low number of system calls, i.e. lower processor usage, i.e. better
985  * performance, which is good for applications like sniffers. If the user
986  * sets the PCAP_OPENFLAG_MAX_RESPONSIVENESS flag, the capture driver will
987  * copy the packets as soon as the application is ready to receive them.
988  * This is suggested for real time applications (such as, for example,
989  * a bridge) that need the best responsiveness.
990  *
991  * The equivalent with pcap_create()/pcap_activate() is "immediate mode".
992  */
993 #define PCAP_OPENFLAG_MAX_RESPONSIVENESS 0x00000010
994 
995 /*
996  * Remote authentication methods.
997  * These are used in the 'type' member of the pcap_rmtauth structure.
998  */
999 
1000 /*
1001  * NULL authentication.
1002  *
1003  * The 'NULL' authentication has to be equal to 'zero', so that old
1004  * applications can just put every field of struct pcap_rmtauth to zero,
1005  * and it does work.
1006  */
1007 #define RPCAP_RMTAUTH_NULL 0
1008 /*
1009  * Username/password authentication.
1010  *
1011  * With this type of authentication, the RPCAP protocol will use the username/
1012  * password provided to authenticate the user on the remote machine. If the
1013  * authentication is successful (and the user has the right to open network
1014  * devices) the RPCAP connection will continue; otherwise it will be dropped.
1015  *
1016  * *******NOTE********: the username and password are sent over the network
1017  * to the capture server *IN CLEAR TEXT*. Don't use this on a network
1018  * that you don't completely control! (And be *really* careful in your
1019  * definition of "completely"!)
1020  */
1021 #define RPCAP_RMTAUTH_PWD 1
1022 
1023 /*
1024  * This structure keeps the information needed to authenticate the user
1025  * on a remote machine.
1026  *
1027  * The remote machine can either grant or refuse the access according
1028  * to the information provided.
1029  * In case the NULL authentication is required, both 'username' and
1030  * 'password' can be NULL pointers.
1031  *
1032  * This structure is meaningless if the source is not a remote interface;
1033  * in that case, the functions which requires such a structure can accept
1034  * a NULL pointer as well.
1035  */
1037 {
1038  /*
1039  * \brief Type of the authentication required.
1040  *
1041  * In order to provide maximum flexibility, we can support different types
1042  * of authentication based on the value of this 'type' variable. The currently
1043  * supported authentication methods are defined into the
1044  * \link remote_auth_methods Remote Authentication Methods Section\endlink.
1045  */
1046  int type;
1047  /*
1048  * \brief Zero-terminated string containing the username that has to be
1049  * used on the remote machine for authentication.
1050  *
1051  * This field is meaningless in case of the RPCAP_RMTAUTH_NULL authentication
1052  * and it can be NULL.
1053  */
1054  char *username;
1055  /*
1056  * \brief Zero-terminated string containing the password that has to be
1057  * used on the remote machine for authentication.
1058  *
1059  * This field is meaningless in case of the RPCAP_RMTAUTH_NULL authentication
1060  * and it can be NULL.
1061  */
1062  char *password;
1063 };
1064 
1065 /*
1066  * This routine can open a savefile, a local device, or a device on
1067  * a remote machine running an RPCAP server.
1068  *
1069  * For opening a savefile, the pcap_open_offline routines can be used,
1070  * and will work just as well; code using them will work on more
1071  * platforms than code using pcap_open() to open savefiles.
1072  *
1073  * For opening a local device, pcap_open_live() can be used; it supports
1074  * most of the capabilities that pcap_open() supports, and code using it
1075  * will work on more platforms than code using pcap_open(). pcap_create()
1076  * and pcap_activate() can also be used; they support all capabilities
1077  * that pcap_open() supports, except for the Windows-only
1078  * PCAP_OPENFLAG_NOCAPTURE_LOCAL, and support additional capabilities.
1079  *
1080  * For opening a remote capture, pcap_open() is currently the only
1081  * API available.
1082  */
1084 PCAP_API pcap_t *pcap_open(const char *source, int snaplen, int flags,
1085  int read_timeout, struct pcap_rmtauth *auth, char *errbuf);
1086 
1088 PCAP_API int pcap_createsrcstr(char *source, int type, const char *host,
1089  const char *port, const char *name, char *errbuf);
1090 
1092 PCAP_API int pcap_parsesrcstr(const char *source, int *type, char *host,
1093  char *port, char *name, char *errbuf);
1094 
1095 /*
1096  * This routine can scan a directory for savefiles, list local capture
1097  * devices, or list capture devices on a remote machine running an RPCAP
1098  * server.
1099  *
1100  * For scanning for savefiles, it can be used on both UN*X systems and
1101  * Windows systems; for each directory entry it sees, it tries to open
1102  * the file as a savefile using pcap_open_offline(), and only includes
1103  * it in the list of files if the open succeeds, so it filters out
1104  * files for which the user doesn't have read permission, as well as
1105  * files that aren't valid savefiles readable by libpcap.
1106  *
1107  * For listing local capture devices, it's just a wrapper around
1108  * pcap_findalldevs(); code using pcap_findalldevs() will work on more
1109  * platforms than code using pcap_findalldevs_ex().
1110  *
1111  * For listing remote capture devices, pcap_findalldevs_ex() is currently
1112  * the only API available.
1113  */
1115 PCAP_API int pcap_findalldevs_ex(const char *source,
1116  struct pcap_rmtauth *auth, pcap_if_t **alldevs, char *errbuf);
1117 
1118 /*
1119  * Sampling methods.
1120  *
1121  * These allow pcap_loop(), pcap_dispatch(), pcap_next(), and pcap_next_ex()
1122  * to see only a sample of packets, rather than all packets.
1123  *
1124  * Currently, they work only on Windows local captures.
1125  */
1126 
1127 /*
1128  * Specifies that no sampling is to be done on the current capture.
1129  *
1130  * In this case, no sampling algorithms are applied to the current capture.
1131  */
1132 #define PCAP_SAMP_NOSAMP 0
1133 
1134 /*
1135  * Specifies that only 1 out of N packets must be returned to the user.
1136  *
1137  * In this case, the 'value' field of the 'pcap_samp' structure indicates the
1138  * number of packets (minus 1) that must be discarded before one packet got
1139  * accepted.
1140  * In other words, if 'value = 10', the first packet is returned to the
1141  * caller, while the following 9 are discarded.
1142  */
1143 #define PCAP_SAMP_1_EVERY_N 1
1144 
1145 /*
1146  * Specifies that we have to return 1 packet every N milliseconds.
1147  *
1148  * In this case, the 'value' field of the 'pcap_samp' structure indicates
1149  * the 'waiting time' in milliseconds before one packet got accepted.
1150  * In other words, if 'value = 10', the first packet is returned to the
1151  * caller; the next returned one will be the first packet that arrives
1152  * when 10ms have elapsed.
1153  */
1154 #define PCAP_SAMP_FIRST_AFTER_N_MS 2
1155 
1156 /*
1157  * This structure defines the information related to sampling.
1158  *
1159  * In case the sampling is requested, the capturing device should read
1160  * only a subset of the packets coming from the source. The returned packets
1161  * depend on the sampling parameters.
1162  *
1163  * WARNING: The sampling process is applied *after* the filtering process.
1164  * In other words, packets are filtered first, then the sampling process
1165  * selects a subset of the 'filtered' packets and it returns them to the
1166  * caller.
1167  */
1169 {
1170  /*
1171  * Method used for sampling; see above.
1172  */
1173  int method;
1174 
1175  /*
1176  * This value depends on the sampling method defined.
1177  * For its meaning, see above.
1178  */
1179  int value;
1180 };
1181 
1182 /*
1183  * New functions.
1184  */
1187 
1188 /*
1189  * RPCAP active mode.
1190  */
1191 
1192 /* Maximum length of an host name (needed for the RPCAP active mode) */
1193 #define RPCAP_HOSTLIST_SIZE 1024
1194 
1196 PCAP_API SOCKET pcap_remoteact_accept(const char *address, const char *port,
1197  const char *hostlist, char *connectinghost,
1198  struct pcap_rmtauth *auth, char *errbuf);
1199 
1201 PCAP_API SOCKET pcap_remoteact_accept_ex(const char *address, const char *port,
1202  const char *hostlist, char *connectinghost,
1203  struct pcap_rmtauth *auth, int uses_ssl, char *errbuf);
1204 
1206 PCAP_API int pcap_remoteact_list(char *hostlist, char sep, int size,
1207  char *errbuf);
1208 
1210 PCAP_API int pcap_remoteact_close(const char *host, char *errbuf);
1211 
1213 PCAP_API void pcap_remoteact_cleanup(void);
1214 
1215 #ifdef __cplusplus
1216 }
1217 #endif
1218 
1219 #endif /* lib_pcap_pcap_h */
u_int bpf_u_int32
Definition: bpf.h:98
int bpf_int32
Definition: bpf.h:97
char hostlist[64000+1]
Keeps the list of the hosts that are allowed to connect to this server.
Definition: rpcapd.c:80
#define PCAP_AVAILABLE_1_7
Definition: funcattrs.h:208
#define PCAP_AVAILABLE_0_8
Definition: funcattrs.h:199
#define PCAP_AVAILABLE_0_4
Definition: funcattrs.h:195
#define PCAP_AVAILABLE_0_7
Definition: funcattrs.h:198
#define PCAP_AVAILABLE_1_5
Definition: funcattrs.h:206
#define PCAP_AVAILABLE_1_10
Definition: funcattrs.h:211
#define PCAP_AVAILABLE_1_0
Definition: funcattrs.h:201
#define PCAP_DEPRECATED(func, msg)
Definition: funcattrs.h:312
#define PCAP_AVAILABLE_0_6
Definition: funcattrs.h:197
#define PCAP_AVAILABLE_0_9
Definition: funcattrs.h:200
#define PCAP_AVAILABLE_0_5
Definition: funcattrs.h:196
#define PCAP_AVAILABLE_1_8
Definition: funcattrs.h:209
#define PCAP_API
Definition: funcattrs.h:147
#define PCAP_AVAILABLE_1_9
Definition: funcattrs.h:210
#define PCAP_AVAILABLE_1_2
Definition: funcattrs.h:203
int wait(int *)
void sync(void)
int pcap_stats_ex(pcap_t *p, struct pcap_stat_ex *se)
Definition: pcap-dos.c:410
void pcap_set_wait(pcap_t *p, void(*yield)(void), int wait)
Definition: pcap-dos.c:638
u_long pcap_mac_packets(void)
Definition: pcap-dos.c:447
int pcap_set_protocol_linux(pcap_t *p, int protocol)
Definition: pcap-linux.c:5416
char * pcap_lookupdev(char *)
Definition: pcap-dos.c:490
int pcap_fileno(pcap_t *)
Definition: pcap.c:3478
int pcap_parsesrcstr(const char *source, int *type, char *host, char *port, char *name, char *errbuf)
pcap_dumper_t * pcap_dump_open(pcap_t *, const char *)
Definition: sf-pcap.c:795
int pcap_getnonblock(pcap_t *, char *)
Definition: pcap.c:3511
const struct timeval * pcap_get_required_select_timeout(pcap_t *)
Definition: pcap.c:3492
int pcap_can_set_rfmon(pcap_t *)
Definition: pcap.c:500
int pcap_datalink_name_to_val(const char *)
Definition: pcap.c:3308
void pcap_free_datalinks(int *)
Definition: pcap.c:2987
int pcap_get_selectable_fd(pcap_t *)
Definition: pcap.c:3486
int pcap_findalldevs(pcap_if_t **, char *)
Definition: pcap.c:711
int pcap_remoteact_accept_ex(const char *address, const char *port, const char *hostlist, char *connectinghost, struct pcap_rmtauth *auth, int uses_ssl, char *errbuf)
Definition: pcap-rpcap.c:2785
int pcap_activate(pcap_t *)
Definition: pcap.c:2708
int pcap_init(unsigned int, char *)
Definition: pcap.c:244
pcap_t * pcap_open(const char *source, int snaplen, int flags, int read_timeout, struct pcap_rmtauth *auth, char *errbuf)
Definition: pcap-new.c:354
const char * pcap_lib_version(void)
Definition: pcap-bpf.c:3590
int pcap_set_promisc(pcap_t *, int)
Definition: pcap.c:2557
FILE * pcap_dump_file(pcap_dumper_t *)
Definition: sf-pcap.c:1094
pcap_dumper_t * pcap_dump_fopen(pcap_t *, FILE *fp)
Definition: sf-pcap.c:881
int pcap_stats(pcap_t *, struct pcap_stat *)
Definition: pcap.c:3736
pcap_t * pcap_open_live(const char *, int, int, int, char *)
Definition: pcap.c:2762
const char * pcap_tstamp_type_val_to_name(int)
Definition: pcap.c:3387
void pcap_freealldevs(pcap_if_t *)
Definition: pcap.c:1431
void(* pcap_handler)(u_char *, const struct pcap_pkthdr *, const u_char *)
Definition: pcap.h:330
long pcap_dump_ftell(pcap_dumper_t *)
Definition: sf-pcap.c:1100
int pcap_set_snaplen(pcap_t *, int)
Definition: pcap.c:2548
FILE * pcap_file(pcap_t *)
Definition: pcap.c:3451
void pcap_freecode(struct bpf_program *)
Definition: gencode.c:900
int pcap_bufsize(pcap_t *)
Definition: pcap.c:3443
pcap_t * pcap_fopen_offline(FILE *, char *)
Definition: savefile.c:605
pcap_t * pcap_open_dead(int, int)
Definition: pcap.c:4408
int pcap_remoteact_close(const char *host, char *errbuf)
Definition: pcap-rpcap.c:2979
int pcap_next_ex(pcap_t *, struct pcap_pkthdr **, const u_char **)
Definition: pcap.c:602
pcap_t * pcap_open_dead_with_tstamp_precision(int, int, u_int)
Definition: pcap.c:4346
int pcap_set_tstamp_precision(pcap_t *, int)
Definition: pcap.c:2653
int64_t pcap_dump_ftell64(pcap_dumper_t *)
Definition: sf-pcap.c:1138
int pcap_is_swapped(pcap_t *)
Definition: pcap.c:3419
int pcap_datalink_ext(pcap_t *)
Definition: pcap.c:2935
void pcap_remoteact_cleanup(void)
Definition: pcap-rpcap.c:3094
int pcap_offline_filter(const struct bpf_program *, const struct pcap_pkthdr *, const u_char *)
Definition: pcap.c:4155
void pcap_dump(u_char *, const struct pcap_pkthdr *, const u_char *)
Definition: sf-pcap.c:745
int pcap_sendpacket(pcap_t *, const u_char *, int)
Definition: pcap.c:4025
int pcap_remoteact_list(char *hostlist, char sep, int size, char *errbuf)
Definition: pcap-rpcap.c:3116
int pcap_set_rfmon(pcap_t *, int)
Definition: pcap.c:2566
struct pcap_samp * pcap_setsampling(pcap_t *p)
Definition: pcap-new.c:462
int pcap_lookupnet(const char *, bpf_u_int32 *, bpf_u_int32 *, char *)
Definition: pcap-dos.c:518
int pcap_set_timeout(pcap_t *, int)
Definition: pcap.c:2575
int pcap_setnonblock(pcap_t *, int, char *)
Definition: pcap.c:3555
const char * pcap_datalink_val_to_name(int)
Definition: pcap.c:3320
int pcap_get_tstamp_precision(pcap_t *)
Definition: pcap.c:2702
int pcap_findalldevs_ex(const char *source, struct pcap_rmtauth *auth, pcap_if_t **alldevs, char *errbuf)
Definition: pcap-new.c:74
int pcap_tstamp_type_name_to_val(const char *)
Definition: pcap.c:3375
int pcap_inject(pcap_t *, const void *, size_t)
Definition: pcap.c:4043
void pcap_free_tstamp_types(int *)
Definition: pcap.c:568
int pcap_datalink(pcap_t *)
Definition: pcap.c:2927
char * pcap_geterr(pcap_t *)
Definition: pcap.c:3505
int pcap_remoteact_accept(const char *address, const char *port, const char *hostlist, char *connectinghost, struct pcap_rmtauth *auth, char *errbuf)
Definition: pcap-rpcap.c:2974
void pcap_perror(pcap_t *, const char *)
Definition: pcap.c:3499
int pcap_createsrcstr(char *source, int type, const char *host, const char *port, const char *name, char *errbuf)
int pcap_snapshot(pcap_t *)
Definition: pcap.c:3411
int pcap_set_datalink(pcap_t *, int)
Definition: pcap.c:2993
pcap_direction_t
Definition: pcap.h:227
@ PCAP_D_IN
Definition: pcap.h:229
@ PCAP_D_INOUT
Definition: pcap.h:228
@ PCAP_D_OUT
Definition: pcap.h:230
pcap_t * pcap_open_offline(const char *, char *)
Definition: savefile.c:393
pcap_t * pcap_fopen_offline_with_tstamp_precision(FILE *, u_int, char *)
Definition: savefile.c:472
int pcap_major_version(pcap_t *)
Definition: pcap.c:3427
struct pcap_dumper pcap_dumper_t
Definition: pcap.h:164
const char * pcap_datalink_val_to_description(int)
Definition: pcap.c:3332
int pcap_compile_nopcap(int, int, struct bpf_program *, const char *, int, bpf_u_int32)
Definition: gencode.c:880
int pcap_dump_flush(pcap_dumper_t *)
Definition: sf-pcap.c:1145
int pcap_compile(pcap_t *, struct bpf_program *, const char *, int, bpf_u_int32)
Definition: gencode.c:724
int pcap_setdirection(pcap_t *, pcap_direction_t)
Definition: pcap.c:3707
pcap_t * pcap_open_offline_with_tstamp_precision(const char *, u_int, char *)
Definition: savefile.c:339
const char * pcap_tstamp_type_val_to_description(int)
Definition: pcap.c:3399
int pcap_dispatch(pcap_t *, int, pcap_handler, u_char *)
Definition: pcap.c:2882
pcap_dumper_t * pcap_dump_open_append(pcap_t *, const char *)
Definition: sf-pcap.c:898
int pcap_set_immediate_mode(pcap_t *, int)
Definition: pcap.c:2629
int pcap_minor_version(pcap_t *)
Definition: pcap.c:3435
int pcap_set_buffer_size(pcap_t *, int)
Definition: pcap.c:2638
int pcap_list_datalinks(pcap_t *, int **)
Definition: pcap.c:2943
int pcap_set_tstamp_type(pcap_t *, int)
Definition: pcap.c:2584
void pcap_dump_close(pcap_dumper_t *)
Definition: sf-pcap.c:1155
void pcap_breakloop(pcap_t *)
Definition: pcap.c:2921
int pcap_setfilter(pcap_t *, struct bpf_program *)
Definition: pcap.c:3695
void pcap_close(pcap_t *)
Definition: pcap.c:4065
const char * pcap_strerror(int)
Definition: pcap.c:3669
const char * pcap_datalink_val_to_description_or_dlt(int)
Definition: pcap.c:3344
int pcap_loop(pcap_t *, int, pcap_handler, u_char *)
Definition: pcap.c:2888
const char * pcap_statustostr(int)
Definition: pcap.c:3610
pcap_t * pcap_create(const char *, char *)
Definition: pcap.c:2252
int pcap_list_tstamp_types(pcap_t *, int **)
Definition: pcap.c:526
const u_char * pcap_next(pcap_t *, struct pcap_pkthdr *)
Definition: pcap.c:588
static char address[2048+1]
keeps the network address (either numeric or literal) to bind to
Definition: rpcapd.c:87
static int uses_ssl
'1' to use TLS over the data socket
Definition: rpcapd.c:94
static char port[2048+1]
keeps the network port to bind to
Definition: rpcapd.c:88
#define SOCKET
In Winsock, a socket handle is of type SOCKET; in UN*X, it's a file descriptor, and therefore a signe...
Definition: socket.h:70
struct pcap_addr * next
Definition: pcap.h:323
struct sockaddr * addr
Definition: pcap.h:324
struct sockaddr * netmask
Definition: pcap.h:325
struct sockaddr * dstaddr
Definition: pcap.h:327
struct sockaddr * broadaddr
Definition: pcap.h:326
bpf_u_int32 sigfigs
Definition: pcap.h:212
bpf_u_int32 linktype
Definition: pcap.h:214
bpf_u_int32 magic
Definition: pcap.h:208
bpf_u_int32 snaplen
Definition: pcap.h:213
bpf_int32 thiszone
Definition: pcap.h:211
u_short version_minor
Definition: pcap.h:210
u_short version_major
Definition: pcap.h:209
Definition: pcap.h:301
char * name
Definition: pcap.h:303
bpf_u_int32 flags
Definition: pcap.h:306
struct pcap_if * next
Definition: pcap.h:302
char * description
Definition: pcap.h:304
struct pcap_addr * addresses
Definition: pcap.h:305
bpf_u_int32 caplen
Definition: pcap.h:247
struct timeval ts
Definition: pcap.h:246
bpf_u_int32 len
Definition: pcap.h:248
char * password
Definition: pcap.h:1062
char * username
Definition: pcap.h:1054
int type
Definition: pcap.h:1046
int method
Definition: pcap.h:1173
int value
Definition: pcap.h:1179
u_int ps_drop
Definition: pcap.h:256
u_int ps_recv
Definition: pcap.h:255
u_int ps_ifdrop
Definition: pcap.h:257
Definition: pcap-int.h:200