mirror of https://github.com/PCSX2/pcsx2.git
977 lines
38 KiB
C
977 lines
38 KiB
C
/* -*- Mode: c; tab-width: 8; indent-tabs-mode: 1; c-basic-offset: 8; -*- */
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/*
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* Copyright (c) 1993, 1994, 1995, 1996, 1997
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the Computer Systems
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* Engineering Group at Lawrence Berkeley Laboratory.
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* 4. Neither the name of the University nor of the Laboratory may be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Remote packet capture mechanisms and extensions from WinPcap:
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*
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* Copyright (c) 2002 - 2003
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* NetGroup, Politecnico di Torino (Italy)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Politecnico di Torino nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef lib_pcap_pcap_h
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#define lib_pcap_pcap_h
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#include <pcap/funcattrs.h>
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#include <pcap/pcap-inttypes.h>
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#if defined(_WIN32)
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#include <winsock2.h> /* u_int, u_char etc. */
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#include <io.h> /* _get_osfhandle() */
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#elif defined(MSDOS)
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#include <sys/types.h> /* u_int, u_char etc. */
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#include <sys/socket.h>
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#else /* UN*X */
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#include <sys/types.h> /* u_int, u_char etc. */
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#include <sys/time.h>
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#endif /* _WIN32/MSDOS/UN*X */
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#include <pcap/socket.h> /* for SOCKET, as the active-mode rpcap APIs use it */
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#ifndef PCAP_DONT_INCLUDE_PCAP_BPF_H
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#include <pcap/bpf.h>
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#endif
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#include <stdio.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Version number of the current version of the pcap file format.
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*
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* NOTE: this is *NOT* the version number of the libpcap library.
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* To fetch the version information for the version of libpcap
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* you're using, use pcap_lib_version().
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*/
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#define PCAP_VERSION_MAJOR 2
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#define PCAP_VERSION_MINOR 4
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#define PCAP_ERRBUF_SIZE 256
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/*
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* Compatibility for systems that have a bpf.h that
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* predates the bpf typedefs for 64-bit support.
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*/
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#if BPF_RELEASE - 0 < 199406
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typedef int bpf_int32;
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typedef u_int bpf_u_int32;
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#endif
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typedef struct pcap pcap_t;
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typedef struct pcap_dumper pcap_dumper_t;
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typedef struct pcap_if pcap_if_t;
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typedef struct pcap_addr pcap_addr_t;
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/*
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* The first record in the file contains saved values for some
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* of the flags used in the printout phases of tcpdump.
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* Many fields here are 32 bit ints so compilers won't insert unwanted
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* padding; these files need to be interchangeable across architectures.
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*
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* Do not change the layout of this structure, in any way (this includes
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* changes that only affect the length of fields in this structure).
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*
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* Also, do not change the interpretation of any of the members of this
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* structure, in any way (this includes using values other than
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* LINKTYPE_ values, as defined in "savefile.c", in the "linktype"
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* field).
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*
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* Instead:
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*
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* introduce a new structure for the new format, if the layout
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* of the structure changed;
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*
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* send mail to "tcpdump-workers@lists.tcpdump.org", requesting
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* a new magic number for your new capture file format, and, when
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* you get the new magic number, put it in "savefile.c";
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*
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* use that magic number for save files with the changed file
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* header;
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*
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* make the code in "savefile.c" capable of reading files with
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* the old file header as well as files with the new file header
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* (using the magic number to determine the header format).
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*
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* Then supply the changes by forking the branch at
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*
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* https://github.com/the-tcpdump-group/libpcap/issues
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*
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* and issuing a pull request, so that future versions of libpcap and
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* programs that use it (such as tcpdump) will be able to read your new
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* capture file format.
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*/
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struct pcap_file_header {
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bpf_u_int32 magic;
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u_short version_major;
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u_short version_minor;
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bpf_int32 thiszone; /* gmt to local correction */
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bpf_u_int32 sigfigs; /* accuracy of timestamps */
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bpf_u_int32 snaplen; /* max length saved portion of each pkt */
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bpf_u_int32 linktype; /* data link type (LINKTYPE_*) */
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};
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/*
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* Macros for the value returned by pcap_datalink_ext().
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*
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* If LT_FCS_LENGTH_PRESENT(x) is true, the LT_FCS_LENGTH(x) macro
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* gives the FCS length of packets in the capture.
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*/
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#define LT_FCS_LENGTH_PRESENT(x) ((x) & 0x04000000)
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#define LT_FCS_LENGTH(x) (((x) & 0xF0000000) >> 28)
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#define LT_FCS_DATALINK_EXT(x) ((((x) & 0xF) << 28) | 0x04000000)
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typedef enum {
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PCAP_D_INOUT = 0,
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PCAP_D_IN,
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PCAP_D_OUT
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} pcap_direction_t;
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/*
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* Generic per-packet information, as supplied by libpcap.
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*
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* The time stamp can and should be a "struct timeval", regardless of
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* whether your system supports 32-bit tv_sec in "struct timeval",
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* 64-bit tv_sec in "struct timeval", or both if it supports both 32-bit
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* and 64-bit applications. The on-disk format of savefiles uses 32-bit
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* tv_sec (and tv_usec); this structure is irrelevant to that. 32-bit
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* and 64-bit versions of libpcap, even if they're on the same platform,
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* should supply the appropriate version of "struct timeval", even if
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* that's not what the underlying packet capture mechanism supplies.
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*/
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struct pcap_pkthdr {
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struct timeval ts; /* time stamp */
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bpf_u_int32 caplen; /* length of portion present */
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bpf_u_int32 len; /* length this packet (off wire) */
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};
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/*
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* As returned by the pcap_stats()
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*/
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struct pcap_stat {
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u_int ps_recv; /* number of packets received */
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u_int ps_drop; /* number of packets dropped */
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u_int ps_ifdrop; /* drops by interface -- only supported on some platforms */
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#ifdef _WIN32
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u_int ps_capt; /* number of packets that reach the application */
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u_int ps_sent; /* number of packets sent by the server on the network */
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u_int ps_netdrop; /* number of packets lost on the network */
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#endif /* _WIN32 */
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};
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#ifdef MSDOS
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/*
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* As returned by the pcap_stats_ex()
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*/
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struct pcap_stat_ex {
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u_long rx_packets; /* total packets received */
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u_long tx_packets; /* total packets transmitted */
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u_long rx_bytes; /* total bytes received */
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u_long tx_bytes; /* total bytes transmitted */
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u_long rx_errors; /* bad packets received */
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u_long tx_errors; /* packet transmit problems */
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u_long rx_dropped; /* no space in Rx buffers */
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u_long tx_dropped; /* no space available for Tx */
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u_long multicast; /* multicast packets received */
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u_long collisions;
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/* detailed rx_errors: */
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u_long rx_length_errors;
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u_long rx_over_errors; /* receiver ring buff overflow */
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u_long rx_crc_errors; /* recv'd pkt with crc error */
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u_long rx_frame_errors; /* recv'd frame alignment error */
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u_long rx_fifo_errors; /* recv'r fifo overrun */
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u_long rx_missed_errors; /* recv'r missed packet */
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/* detailed tx_errors */
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u_long tx_aborted_errors;
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u_long tx_carrier_errors;
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u_long tx_fifo_errors;
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u_long tx_heartbeat_errors;
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u_long tx_window_errors;
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};
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#endif
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/*
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* Item in a list of interfaces.
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*/
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struct pcap_if {
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struct pcap_if *next;
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char *name; /* name to hand to "pcap_open_live()" */
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char *description; /* textual description of interface, or NULL */
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struct pcap_addr *addresses;
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bpf_u_int32 flags; /* PCAP_IF_ interface flags */
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};
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#define PCAP_IF_LOOPBACK 0x00000001 /* interface is loopback */
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#define PCAP_IF_UP 0x00000002 /* interface is up */
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#define PCAP_IF_RUNNING 0x00000004 /* interface is running */
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#define PCAP_IF_WIRELESS 0x00000008 /* interface is wireless (*NOT* necessarily Wi-Fi!) */
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#define PCAP_IF_CONNECTION_STATUS 0x00000030 /* connection status: */
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#define PCAP_IF_CONNECTION_STATUS_UNKNOWN 0x00000000 /* unknown */
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#define PCAP_IF_CONNECTION_STATUS_CONNECTED 0x00000010 /* connected */
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#define PCAP_IF_CONNECTION_STATUS_DISCONNECTED 0x00000020 /* disconnected */
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#define PCAP_IF_CONNECTION_STATUS_NOT_APPLICABLE 0x00000030 /* not applicable */
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/*
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* Representation of an interface address.
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*/
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struct pcap_addr {
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struct pcap_addr *next;
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struct sockaddr *addr; /* address */
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struct sockaddr *netmask; /* netmask for that address */
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struct sockaddr *broadaddr; /* broadcast address for that address */
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struct sockaddr *dstaddr; /* P2P destination address for that address */
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};
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typedef void (*pcap_handler)(u_char *, const struct pcap_pkthdr *,
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const u_char *);
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/*
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* Error codes for the pcap API.
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* These will all be negative, so you can check for the success or
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* failure of a call that returns these codes by checking for a
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* negative value.
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*/
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#define PCAP_ERROR -1 /* generic error code */
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#define PCAP_ERROR_BREAK -2 /* loop terminated by pcap_breakloop */
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#define PCAP_ERROR_NOT_ACTIVATED -3 /* the capture needs to be activated */
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#define PCAP_ERROR_ACTIVATED -4 /* the operation can't be performed on already activated captures */
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#define PCAP_ERROR_NO_SUCH_DEVICE -5 /* no such device exists */
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#define PCAP_ERROR_RFMON_NOTSUP -6 /* this device doesn't support rfmon (monitor) mode */
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#define PCAP_ERROR_NOT_RFMON -7 /* operation supported only in monitor mode */
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#define PCAP_ERROR_PERM_DENIED -8 /* no permission to open the device */
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#define PCAP_ERROR_IFACE_NOT_UP -9 /* interface isn't up */
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#define PCAP_ERROR_CANTSET_TSTAMP_TYPE -10 /* this device doesn't support setting the time stamp type */
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#define PCAP_ERROR_PROMISC_PERM_DENIED -11 /* you don't have permission to capture in promiscuous mode */
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#define PCAP_ERROR_TSTAMP_PRECISION_NOTSUP -12 /* the requested time stamp precision is not supported */
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/*
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* Warning codes for the pcap API.
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* These will all be positive and non-zero, so they won't look like
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* errors.
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*/
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#define PCAP_WARNING 1 /* generic warning code */
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#define PCAP_WARNING_PROMISC_NOTSUP 2 /* this device doesn't support promiscuous mode */
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#define PCAP_WARNING_TSTAMP_TYPE_NOTSUP 3 /* the requested time stamp type is not supported */
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/*
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* Value to pass to pcap_compile() as the netmask if you don't know what
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* the netmask is.
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*/
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#define PCAP_NETMASK_UNKNOWN 0xffffffff
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/*
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* We're deprecating pcap_lookupdev() for various reasons (not
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* thread-safe, can behave weirdly with WinPcap). Callers
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* should use pcap_findalldevs() and use the first device.
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*/
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PCAP_API char *pcap_lookupdev(char *)
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PCAP_DEPRECATED(pcap_lookupdev, "use 'pcap_findalldevs' and use the first device");
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PCAP_API int pcap_lookupnet(const char *, bpf_u_int32 *, bpf_u_int32 *, char *);
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PCAP_API pcap_t *pcap_create(const char *, char *);
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PCAP_API int pcap_set_snaplen(pcap_t *, int);
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PCAP_API int pcap_set_promisc(pcap_t *, int);
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PCAP_API int pcap_can_set_rfmon(pcap_t *);
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PCAP_API int pcap_set_rfmon(pcap_t *, int);
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PCAP_API int pcap_set_timeout(pcap_t *, int);
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PCAP_API int pcap_set_tstamp_type(pcap_t *, int);
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PCAP_API int pcap_set_immediate_mode(pcap_t *, int);
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PCAP_API int pcap_set_buffer_size(pcap_t *, int);
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PCAP_API int pcap_set_tstamp_precision(pcap_t *, int);
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PCAP_API int pcap_get_tstamp_precision(pcap_t *);
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PCAP_API int pcap_activate(pcap_t *);
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PCAP_API int pcap_list_tstamp_types(pcap_t *, int **);
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PCAP_API void pcap_free_tstamp_types(int *);
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PCAP_API int pcap_tstamp_type_name_to_val(const char *);
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PCAP_API const char *pcap_tstamp_type_val_to_name(int);
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PCAP_API const char *pcap_tstamp_type_val_to_description(int);
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#ifdef __linux__
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PCAP_API int pcap_set_protocol_linux(pcap_t *, int);
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#endif
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/*
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* Time stamp types.
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* Not all systems and interfaces will necessarily support all of these.
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*
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* A system that supports PCAP_TSTAMP_HOST is offering time stamps
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* provided by the host machine, rather than by the capture device,
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* but not committing to any characteristics of the time stamp;
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* it will not offer any of the PCAP_TSTAMP_HOST_ subtypes.
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*
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* PCAP_TSTAMP_HOST_LOWPREC is a time stamp, provided by the host machine,
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* that's low-precision but relatively cheap to fetch; it's normally done
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* using the system clock, so it's normally synchronized with times you'd
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* fetch from system calls.
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*
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* PCAP_TSTAMP_HOST_HIPREC is a time stamp, provided by the host machine,
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* that's high-precision; it might be more expensive to fetch. It might
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* or might not be synchronized with the system clock, and might have
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* problems with time stamps for packets received on different CPUs,
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* depending on the platform.
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*
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* PCAP_TSTAMP_ADAPTER is a high-precision time stamp supplied by the
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* capture device; it's synchronized with the system clock.
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*
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* PCAP_TSTAMP_ADAPTER_UNSYNCED is a high-precision time stamp supplied by
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* the capture device; it's not synchronized with the system clock.
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*
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* Note that time stamps synchronized with the system clock can go
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* backwards, as the system clock can go backwards. If a clock is
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* not in sync with the system clock, that could be because the
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* system clock isn't keeping accurate time, because the other
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* clock isn't keeping accurate time, or both.
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*
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* Note that host-provided time stamps generally correspond to the
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* time when the time-stamping code sees the packet; this could
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* be some unknown amount of time after the first or last bit of
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* the packet is received by the network adapter, due to batching
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* of interrupts for packet arrival, queueing delays, etc..
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*/
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#define PCAP_TSTAMP_HOST 0 /* host-provided, unknown characteristics */
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#define PCAP_TSTAMP_HOST_LOWPREC 1 /* host-provided, low precision */
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#define PCAP_TSTAMP_HOST_HIPREC 2 /* host-provided, high precision */
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#define PCAP_TSTAMP_ADAPTER 3 /* device-provided, synced with the system clock */
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#define PCAP_TSTAMP_ADAPTER_UNSYNCED 4 /* device-provided, not synced with the system clock */
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/*
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* Time stamp resolution types.
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* Not all systems and interfaces will necessarily support all of these
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* resolutions when doing live captures; all of them can be requested
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* when reading a savefile.
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*/
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#define PCAP_TSTAMP_PRECISION_MICRO 0 /* use timestamps with microsecond precision, default */
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#define PCAP_TSTAMP_PRECISION_NANO 1 /* use timestamps with nanosecond precision */
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PCAP_API pcap_t *pcap_open_live(const char *, int, int, int, char *);
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PCAP_API pcap_t *pcap_open_dead(int, int);
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PCAP_API pcap_t *pcap_open_dead_with_tstamp_precision(int, int, u_int);
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PCAP_API pcap_t *pcap_open_offline_with_tstamp_precision(const char *, u_int, char *);
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PCAP_API pcap_t *pcap_open_offline(const char *, char *);
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#ifdef _WIN32
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PCAP_API pcap_t *pcap_hopen_offline_with_tstamp_precision(intptr_t, u_int, char *);
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PCAP_API pcap_t *pcap_hopen_offline(intptr_t, char *);
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/*
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* If we're building libpcap, these are internal routines in savefile.c,
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* so we must not define them as macros.
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*
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* If we're not building libpcap, given that the version of the C runtime
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* with which libpcap was built might be different from the version
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* of the C runtime with which an application using libpcap was built,
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* and that a FILE structure may differ between the two versions of the
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* C runtime, calls to _fileno() must use the version of _fileno() in
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* the C runtime used to open the FILE *, not the version in the C
|
|
* runtime with which libpcap was built. (Maybe once the Universal CRT
|
|
* rules the world, this will cease to be a problem.)
|
|
*/
|
|
#ifndef BUILDING_PCAP
|
|
#define pcap_fopen_offline_with_tstamp_precision(f,p,b) \
|
|
pcap_hopen_offline_with_tstamp_precision(_get_osfhandle(_fileno(f)), p, b)
|
|
#define pcap_fopen_offline(f,b) \
|
|
pcap_hopen_offline(_get_osfhandle(_fileno(f)), b)
|
|
#endif
|
|
#else /*_WIN32*/
|
|
PCAP_API pcap_t *pcap_fopen_offline_with_tstamp_precision(FILE *, u_int, char *);
|
|
PCAP_API pcap_t *pcap_fopen_offline(FILE *, char *);
|
|
#endif /*_WIN32*/
|
|
|
|
PCAP_API void pcap_close(pcap_t *);
|
|
PCAP_API int pcap_loop(pcap_t *, int, pcap_handler, u_char *);
|
|
PCAP_API int pcap_dispatch(pcap_t *, int, pcap_handler, u_char *);
|
|
PCAP_API const u_char *pcap_next(pcap_t *, struct pcap_pkthdr *);
|
|
PCAP_API int pcap_next_ex(pcap_t *, struct pcap_pkthdr **, const u_char **);
|
|
PCAP_API void pcap_breakloop(pcap_t *);
|
|
PCAP_API int pcap_stats(pcap_t *, struct pcap_stat *);
|
|
PCAP_API int pcap_setfilter(pcap_t *, struct bpf_program *);
|
|
PCAP_API int pcap_setdirection(pcap_t *, pcap_direction_t);
|
|
PCAP_API int pcap_getnonblock(pcap_t *, char *);
|
|
PCAP_API int pcap_setnonblock(pcap_t *, int, char *);
|
|
PCAP_API int pcap_inject(pcap_t *, const void *, size_t);
|
|
PCAP_API int pcap_sendpacket(pcap_t *, const u_char *, int);
|
|
PCAP_API const char *pcap_statustostr(int);
|
|
PCAP_API const char *pcap_strerror(int);
|
|
PCAP_API char *pcap_geterr(pcap_t *);
|
|
PCAP_API void pcap_perror(pcap_t *, const char *);
|
|
PCAP_API int pcap_compile(pcap_t *, struct bpf_program *, const char *, int,
|
|
bpf_u_int32);
|
|
PCAP_API int pcap_compile_nopcap(int, int, struct bpf_program *,
|
|
const char *, int, bpf_u_int32);
|
|
PCAP_API void pcap_freecode(struct bpf_program *);
|
|
PCAP_API int pcap_offline_filter(const struct bpf_program *,
|
|
const struct pcap_pkthdr *, const u_char *);
|
|
PCAP_API int pcap_datalink(pcap_t *);
|
|
PCAP_API int pcap_datalink_ext(pcap_t *);
|
|
PCAP_API int pcap_list_datalinks(pcap_t *, int **);
|
|
PCAP_API int pcap_set_datalink(pcap_t *, int);
|
|
PCAP_API void pcap_free_datalinks(int *);
|
|
PCAP_API int pcap_datalink_name_to_val(const char *);
|
|
PCAP_API const char *pcap_datalink_val_to_name(int);
|
|
PCAP_API const char *pcap_datalink_val_to_description(int);
|
|
PCAP_API const char *pcap_datalink_val_to_description_or_dlt(int);
|
|
PCAP_API int pcap_snapshot(pcap_t *);
|
|
PCAP_API int pcap_is_swapped(pcap_t *);
|
|
PCAP_API int pcap_major_version(pcap_t *);
|
|
PCAP_API int pcap_minor_version(pcap_t *);
|
|
PCAP_API int pcap_bufsize(pcap_t *);
|
|
|
|
/* XXX */
|
|
PCAP_API FILE *pcap_file(pcap_t *);
|
|
PCAP_API int pcap_fileno(pcap_t *);
|
|
|
|
#ifdef _WIN32
|
|
PCAP_API int pcap_wsockinit(void);
|
|
#endif
|
|
|
|
PCAP_API pcap_dumper_t *pcap_dump_open(pcap_t *, const char *);
|
|
#ifdef _WIN32
|
|
PCAP_API pcap_dumper_t *pcap_dump_hopen(pcap_t *, intptr_t);
|
|
/*
|
|
* If we're building libpcap, this is an internal routine in sf-pcap.c, so
|
|
* we must not define it as a macro.
|
|
*
|
|
* If we're not building libpcap, given that the version of the C runtime
|
|
* with which libpcap was built might be different from the version
|
|
* of the C runtime with which an application using libpcap was built,
|
|
* and that a FILE structure may differ between the two versions of the
|
|
* C runtime, calls to _fileno() must use the version of _fileno() in
|
|
* the C runtime used to open the FILE *, not the version in the C
|
|
* runtime with which libpcap was built. (Maybe once the Universal CRT
|
|
* rules the world, this will cease to be a problem.)
|
|
*/
|
|
#ifndef BUILDING_PCAP
|
|
#define pcap_dump_fopen(p,f) \
|
|
pcap_dump_hopen(p, _get_osfhandle(_fileno(f)))
|
|
#endif
|
|
#else /*_WIN32*/
|
|
PCAP_API pcap_dumper_t *pcap_dump_fopen(pcap_t *, FILE *fp);
|
|
#endif /*_WIN32*/
|
|
PCAP_API pcap_dumper_t *pcap_dump_open_append(pcap_t *, const char *);
|
|
PCAP_API FILE *pcap_dump_file(pcap_dumper_t *);
|
|
PCAP_API long pcap_dump_ftell(pcap_dumper_t *);
|
|
PCAP_API int64_t pcap_dump_ftell64(pcap_dumper_t *);
|
|
PCAP_API int pcap_dump_flush(pcap_dumper_t *);
|
|
PCAP_API void pcap_dump_close(pcap_dumper_t *);
|
|
PCAP_API void pcap_dump(u_char *, const struct pcap_pkthdr *, const u_char *);
|
|
|
|
PCAP_API int pcap_findalldevs(pcap_if_t **, char *);
|
|
PCAP_API void pcap_freealldevs(pcap_if_t *);
|
|
|
|
/*
|
|
* We return a pointer to the version string, rather than exporting the
|
|
* version string directly.
|
|
*
|
|
* On at least some UNIXes, if you import data from a shared library into
|
|
* an program, the data is bound into the program binary, so if the string
|
|
* in the version of the library with which the program was linked isn't
|
|
* the same as the string in the version of the library with which the
|
|
* program is being run, various undesirable things may happen (warnings,
|
|
* the string being the one from the version of the library with which the
|
|
* program was linked, or even weirder things, such as the string being the
|
|
* one from the library but being truncated).
|
|
*
|
|
* On Windows, the string is constructed at run time.
|
|
*/
|
|
PCAP_API const char *pcap_lib_version(void);
|
|
|
|
/*
|
|
* On at least some versions of NetBSD and QNX, we don't want to declare
|
|
* bpf_filter() here, as it's also be declared in <net/bpf.h>, with a
|
|
* different signature, but, on other BSD-flavored UN*Xes, it's not
|
|
* declared in <net/bpf.h>, so we *do* want to declare it here, so it's
|
|
* declared when we build pcap-bpf.c.
|
|
*/
|
|
#if !defined(__NetBSD__) && !defined(__QNX__)
|
|
PCAP_API u_int bpf_filter(const struct bpf_insn *, const u_char *, u_int, u_int);
|
|
#endif
|
|
PCAP_API int bpf_validate(const struct bpf_insn *f, int len);
|
|
PCAP_API char *bpf_image(const struct bpf_insn *, int);
|
|
PCAP_API void bpf_dump(const struct bpf_program *, int);
|
|
|
|
#if defined(_WIN32)
|
|
|
|
/*
|
|
* Win32 definitions
|
|
*/
|
|
|
|
/*!
|
|
\brief A queue of raw packets that will be sent to the network with pcap_sendqueue_transmit().
|
|
*/
|
|
struct pcap_send_queue
|
|
{
|
|
u_int maxlen; /* Maximum size of the queue, in bytes. This
|
|
variable contains the size of the buffer field. */
|
|
u_int len; /* Current size of the queue, in bytes. */
|
|
char *buffer; /* Buffer containing the packets to be sent. */
|
|
};
|
|
|
|
typedef struct pcap_send_queue pcap_send_queue;
|
|
|
|
/*!
|
|
\brief This typedef is a support for the pcap_get_airpcap_handle() function
|
|
*/
|
|
#if !defined(AIRPCAP_HANDLE__EAE405F5_0171_9592_B3C2_C19EC426AD34__DEFINED_)
|
|
#define AIRPCAP_HANDLE__EAE405F5_0171_9592_B3C2_C19EC426AD34__DEFINED_
|
|
typedef struct _AirpcapHandle *PAirpcapHandle;
|
|
#endif
|
|
|
|
PCAP_API int pcap_setbuff(pcap_t *p, int dim);
|
|
PCAP_API int pcap_setmode(pcap_t *p, int mode);
|
|
PCAP_API int pcap_setmintocopy(pcap_t *p, int size);
|
|
|
|
PCAP_API HANDLE pcap_getevent(pcap_t *p);
|
|
|
|
PCAP_API int pcap_oid_get_request(pcap_t *, bpf_u_int32, void *, size_t *);
|
|
PCAP_API int pcap_oid_set_request(pcap_t *, bpf_u_int32, const void *, size_t *);
|
|
|
|
PCAP_API pcap_send_queue* pcap_sendqueue_alloc(u_int memsize);
|
|
|
|
PCAP_API void pcap_sendqueue_destroy(pcap_send_queue* queue);
|
|
|
|
PCAP_API int pcap_sendqueue_queue(pcap_send_queue* queue, const struct pcap_pkthdr *pkt_header, const u_char *pkt_data);
|
|
|
|
PCAP_API u_int pcap_sendqueue_transmit(pcap_t *p, pcap_send_queue* queue, int sync);
|
|
|
|
PCAP_API struct pcap_stat *pcap_stats_ex(pcap_t *p, int *pcap_stat_size);
|
|
|
|
PCAP_API int pcap_setuserbuffer(pcap_t *p, int size);
|
|
|
|
PCAP_API int pcap_live_dump(pcap_t *p, char *filename, int maxsize, int maxpacks);
|
|
|
|
PCAP_API int pcap_live_dump_ended(pcap_t *p, int sync);
|
|
|
|
PCAP_API int pcap_start_oem(char* err_str, int flags);
|
|
|
|
PCAP_API PAirpcapHandle pcap_get_airpcap_handle(pcap_t *p);
|
|
|
|
#define MODE_CAPT 0
|
|
#define MODE_STAT 1
|
|
#define MODE_MON 2
|
|
|
|
#elif defined(MSDOS)
|
|
|
|
/*
|
|
* MS-DOS definitions
|
|
*/
|
|
|
|
PCAP_API int pcap_stats_ex (pcap_t *, struct pcap_stat_ex *);
|
|
PCAP_API void pcap_set_wait (pcap_t *p, void (*yield)(void), int wait);
|
|
PCAP_API u_long pcap_mac_packets (void);
|
|
|
|
#else /* UN*X */
|
|
|
|
/*
|
|
* UN*X definitions
|
|
*/
|
|
|
|
PCAP_API int pcap_get_selectable_fd(pcap_t *);
|
|
PCAP_API struct timeval *pcap_get_required_select_timeout(pcap_t *);
|
|
|
|
#endif /* _WIN32/MSDOS/UN*X */
|
|
|
|
/*
|
|
* Remote capture definitions.
|
|
*
|
|
* These routines are only present if libpcap has been configured to
|
|
* include remote capture support.
|
|
*/
|
|
|
|
/*
|
|
* The maximum buffer size in which address, port, interface names are kept.
|
|
*
|
|
* In case the adapter name or such is larger than this value, it is truncated.
|
|
* This is not used by the user; however it must be aware that an hostname / interface
|
|
* name longer than this value will be truncated.
|
|
*/
|
|
#define PCAP_BUF_SIZE 1024
|
|
|
|
/*
|
|
* The type of input source, passed to pcap_open().
|
|
*/
|
|
#define PCAP_SRC_FILE 2 /* local savefile */
|
|
#define PCAP_SRC_IFLOCAL 3 /* local network interface */
|
|
#define PCAP_SRC_IFREMOTE 4 /* interface on a remote host, using RPCAP */
|
|
|
|
/*
|
|
* The formats allowed by pcap_open() are the following:
|
|
* - file://path_and_filename [opens a local file]
|
|
* - rpcap://devicename [opens the selected device devices available on the local host, without using the RPCAP protocol]
|
|
* - rpcap://host/devicename [opens the selected device available on a remote host]
|
|
* - rpcap://host:port/devicename [opens the selected device available on a remote host, using a non-standard port for RPCAP]
|
|
* - adaptername [to open a local adapter; kept for compability, but it is strongly discouraged]
|
|
* - (NULL) [to open the first local adapter; kept for compability, but it is strongly discouraged]
|
|
*
|
|
* The formats allowed by the pcap_findalldevs_ex() are the following:
|
|
* - file://folder/ [lists all the files in the given folder]
|
|
* - rpcap:// [lists all local adapters]
|
|
* - rpcap://host:port/ [lists the devices available on a remote host]
|
|
*
|
|
* Referring to the 'host' and 'port' parameters, they can be either numeric or literal. Since
|
|
* IPv6 is fully supported, these are the allowed formats:
|
|
*
|
|
* - host (literal): e.g. host.foo.bar
|
|
* - host (numeric IPv4): e.g. 10.11.12.13
|
|
* - host (numeric IPv4, IPv6 style): e.g. [10.11.12.13]
|
|
* - host (numeric IPv6): e.g. [1:2:3::4]
|
|
* - port: can be either numeric (e.g. '80') or literal (e.g. 'http')
|
|
*
|
|
* Here you find some allowed examples:
|
|
* - rpcap://host.foo.bar/devicename [everything literal, no port number]
|
|
* - rpcap://host.foo.bar:1234/devicename [everything literal, with port number]
|
|
* - rpcap://10.11.12.13/devicename [IPv4 numeric, no port number]
|
|
* - rpcap://10.11.12.13:1234/devicename [IPv4 numeric, with port number]
|
|
* - rpcap://[10.11.12.13]:1234/devicename [IPv4 numeric with IPv6 format, with port number]
|
|
* - rpcap://[1:2:3::4]/devicename [IPv6 numeric, no port number]
|
|
* - rpcap://[1:2:3::4]:1234/devicename [IPv6 numeric, with port number]
|
|
* - rpcap://[1:2:3::4]:http/devicename [IPv6 numeric, with literal port number]
|
|
*/
|
|
|
|
/*
|
|
* URL schemes for capture source.
|
|
*/
|
|
/*
|
|
* This string indicates that the user wants to open a capture from a
|
|
* local file.
|
|
*/
|
|
#define PCAP_SRC_FILE_STRING "file://"
|
|
/*
|
|
* This string indicates that the user wants to open a capture from a
|
|
* network interface. This string does not necessarily involve the use
|
|
* of the RPCAP protocol. If the interface required resides on the local
|
|
* host, the RPCAP protocol is not involved and the local functions are used.
|
|
*/
|
|
#define PCAP_SRC_IF_STRING "rpcap://"
|
|
|
|
/*
|
|
* Flags to pass to pcap_open().
|
|
*/
|
|
|
|
/*
|
|
* Specifies whether promiscuous mode is to be used.
|
|
*/
|
|
#define PCAP_OPENFLAG_PROMISCUOUS 0x00000001
|
|
|
|
/*
|
|
* Specifies, for an RPCAP capture, whether the data transfer (in
|
|
* case of a remote capture) has to be done with UDP protocol.
|
|
*
|
|
* If it is '1' if you want a UDP data connection, '0' if you want
|
|
* a TCP data connection; control connection is always TCP-based.
|
|
* A UDP connection is much lighter, but it does not guarantee that all
|
|
* the captured packets arrive to the client workstation. Moreover,
|
|
* it could be harmful in case of network congestion.
|
|
* This flag is meaningless if the source is not a remote interface.
|
|
* In that case, it is simply ignored.
|
|
*/
|
|
#define PCAP_OPENFLAG_DATATX_UDP 0x00000002
|
|
|
|
/*
|
|
* Specifies wheether the remote probe will capture its own generated
|
|
* traffic.
|
|
*
|
|
* In case the remote probe uses the same interface to capture traffic
|
|
* and to send data back to the caller, the captured traffic includes
|
|
* the RPCAP traffic as well. If this flag is turned on, the RPCAP
|
|
* traffic is excluded from the capture, so that the trace returned
|
|
* back to the collector is does not include this traffic.
|
|
*
|
|
* Has no effect on local interfaces or savefiles.
|
|
*/
|
|
#define PCAP_OPENFLAG_NOCAPTURE_RPCAP 0x00000004
|
|
|
|
/*
|
|
* Specifies whether the local adapter will capture its own generated traffic.
|
|
*
|
|
* This flag tells the underlying capture driver to drop the packets
|
|
* that were sent by itself. This is useful when building applications
|
|
* such as bridges that should ignore the traffic they just sent.
|
|
*
|
|
* Supported only on Windows.
|
|
*/
|
|
#define PCAP_OPENFLAG_NOCAPTURE_LOCAL 0x00000008
|
|
|
|
/*
|
|
* This flag configures the adapter for maximum responsiveness.
|
|
*
|
|
* In presence of a large value for nbytes, WinPcap waits for the arrival
|
|
* of several packets before copying the data to the user. This guarantees
|
|
* a low number of system calls, i.e. lower processor usage, i.e. better
|
|
* performance, which is good for applications like sniffers. If the user
|
|
* sets the PCAP_OPENFLAG_MAX_RESPONSIVENESS flag, the capture driver will
|
|
* copy the packets as soon as the application is ready to receive them.
|
|
* This is suggested for real time applications (such as, for example,
|
|
* a bridge) that need the best responsiveness.
|
|
*
|
|
* The equivalent with pcap_create()/pcap_activate() is "immediate mode".
|
|
*/
|
|
#define PCAP_OPENFLAG_MAX_RESPONSIVENESS 0x00000010
|
|
|
|
/*
|
|
* Remote authentication methods.
|
|
* These are used in the 'type' member of the pcap_rmtauth structure.
|
|
*/
|
|
|
|
/*
|
|
* NULL authentication.
|
|
*
|
|
* The 'NULL' authentication has to be equal to 'zero', so that old
|
|
* applications can just put every field of struct pcap_rmtauth to zero,
|
|
* and it does work.
|
|
*/
|
|
#define RPCAP_RMTAUTH_NULL 0
|
|
/*
|
|
* Username/password authentication.
|
|
*
|
|
* With this type of authentication, the RPCAP protocol will use the username/
|
|
* password provided to authenticate the user on the remote machine. If the
|
|
* authentication is successful (and the user has the right to open network
|
|
* devices) the RPCAP connection will continue; otherwise it will be dropped.
|
|
*
|
|
* *******NOTE********: the username and password are sent over the network
|
|
* to the capture server *IN CLEAR TEXT*. Don't use this on a network
|
|
* that you don't completely control! (And be *really* careful in your
|
|
* definition of "completely"!)
|
|
*/
|
|
#define RPCAP_RMTAUTH_PWD 1
|
|
|
|
/*
|
|
* This structure keeps the information needed to autheticate the user
|
|
* on a remote machine.
|
|
*
|
|
* The remote machine can either grant or refuse the access according
|
|
* to the information provided.
|
|
* In case the NULL authentication is required, both 'username' and
|
|
* 'password' can be NULL pointers.
|
|
*
|
|
* This structure is meaningless if the source is not a remote interface;
|
|
* in that case, the functions which requires such a structure can accept
|
|
* a NULL pointer as well.
|
|
*/
|
|
struct pcap_rmtauth
|
|
{
|
|
/*
|
|
* \brief Type of the authentication required.
|
|
*
|
|
* In order to provide maximum flexibility, we can support different types
|
|
* of authentication based on the value of this 'type' variable. The currently
|
|
* supported authentication methods are defined into the
|
|
* \link remote_auth_methods Remote Authentication Methods Section\endlink.
|
|
*/
|
|
int type;
|
|
/*
|
|
* \brief Zero-terminated string containing the username that has to be
|
|
* used on the remote machine for authentication.
|
|
*
|
|
* This field is meaningless in case of the RPCAP_RMTAUTH_NULL authentication
|
|
* and it can be NULL.
|
|
*/
|
|
char *username;
|
|
/*
|
|
* \brief Zero-terminated string containing the password that has to be
|
|
* used on the remote machine for authentication.
|
|
*
|
|
* This field is meaningless in case of the RPCAP_RMTAUTH_NULL authentication
|
|
* and it can be NULL.
|
|
*/
|
|
char *password;
|
|
};
|
|
|
|
/*
|
|
* This routine can open a savefile, a local device, or a device on
|
|
* a remote machine running an RPCAP server.
|
|
*
|
|
* For opening a savefile, the pcap_open_offline routines can be used,
|
|
* and will work just as well; code using them will work on more
|
|
* platforms than code using pcap_open() to open savefiles.
|
|
*
|
|
* For opening a local device, pcap_open_live() can be used; it supports
|
|
* most of the capabilities that pcap_open() supports, and code using it
|
|
* will work on more platforms than code using pcap_open(). pcap_create()
|
|
* and pcap_activate() can also be used; they support all capabilities
|
|
* that pcap_open() supports, except for the Windows-only
|
|
* PCAP_OPENFLAG_NOCAPTURE_LOCAL, and support additional capabilities.
|
|
*
|
|
* For opening a remote capture, pcap_open() is currently the only
|
|
* API available.
|
|
*/
|
|
PCAP_API pcap_t *pcap_open(const char *source, int snaplen, int flags,
|
|
int read_timeout, struct pcap_rmtauth *auth, char *errbuf);
|
|
PCAP_API int pcap_createsrcstr(char *source, int type, const char *host,
|
|
const char *port, const char *name, char *errbuf);
|
|
PCAP_API int pcap_parsesrcstr(const char *source, int *type, char *host,
|
|
char *port, char *name, char *errbuf);
|
|
|
|
/*
|
|
* This routine can scan a directory for savefiles, list local capture
|
|
* devices, or list capture devices on a remote machine running an RPCAP
|
|
* server.
|
|
*
|
|
* For scanning for savefiles, it can be used on both UN*X systems and
|
|
* Windows systems; for each directory entry it sees, it tries to open
|
|
* the file as a savefile using pcap_open_offline(), and only includes
|
|
* it in the list of files if the open succeeds, so it filters out
|
|
* files for which the user doesn't have read permission, as well as
|
|
* files that aren't valid savefiles readable by libpcap.
|
|
*
|
|
* For listing local capture devices, it's just a wrapper around
|
|
* pcap_findalldevs(); code using pcap_findalldevs() will work on more
|
|
* platforms than code using pcap_findalldevs_ex().
|
|
*
|
|
* For listing remote capture devices, pcap_findalldevs_ex() is currently
|
|
* the only API available.
|
|
*/
|
|
PCAP_API int pcap_findalldevs_ex(const char *source,
|
|
struct pcap_rmtauth *auth, pcap_if_t **alldevs, char *errbuf);
|
|
|
|
/*
|
|
* Sampling methods.
|
|
*
|
|
* These allow pcap_loop(), pcap_dispatch(), pcap_next(), and pcap_next_ex()
|
|
* to see only a sample of packets, rather than all packets.
|
|
*
|
|
* Currently, they work only on Windows local captures.
|
|
*/
|
|
|
|
/*
|
|
* Specifies that no sampling is to be done on the current capture.
|
|
*
|
|
* In this case, no sampling algorithms are applied to the current capture.
|
|
*/
|
|
#define PCAP_SAMP_NOSAMP 0
|
|
|
|
/*
|
|
* Specifies that only 1 out of N packets must be returned to the user.
|
|
*
|
|
* In this case, the 'value' field of the 'pcap_samp' structure indicates the
|
|
* number of packets (minus 1) that must be discarded before one packet got
|
|
* accepted.
|
|
* In other words, if 'value = 10', the first packet is returned to the
|
|
* caller, while the following 9 are discarded.
|
|
*/
|
|
#define PCAP_SAMP_1_EVERY_N 1
|
|
|
|
/*
|
|
* Specifies that we have to return 1 packet every N milliseconds.
|
|
*
|
|
* In this case, the 'value' field of the 'pcap_samp' structure indicates
|
|
* the 'waiting time' in milliseconds before one packet got accepted.
|
|
* In other words, if 'value = 10', the first packet is returned to the
|
|
* caller; the next returned one will be the first packet that arrives
|
|
* when 10ms have elapsed.
|
|
*/
|
|
#define PCAP_SAMP_FIRST_AFTER_N_MS 2
|
|
|
|
/*
|
|
* This structure defines the information related to sampling.
|
|
*
|
|
* In case the sampling is requested, the capturing device should read
|
|
* only a subset of the packets coming from the source. The returned packets
|
|
* depend on the sampling parameters.
|
|
*
|
|
* WARNING: The sampling process is applied *after* the filtering process.
|
|
* In other words, packets are filtered first, then the sampling process
|
|
* selects a subset of the 'filtered' packets and it returns them to the
|
|
* caller.
|
|
*/
|
|
struct pcap_samp
|
|
{
|
|
/*
|
|
* Method used for sampling; see above.
|
|
*/
|
|
int method;
|
|
|
|
/*
|
|
* This value depends on the sampling method defined.
|
|
* For its meaning, see above.
|
|
*/
|
|
int value;
|
|
};
|
|
|
|
/*
|
|
* New functions.
|
|
*/
|
|
PCAP_API struct pcap_samp *pcap_setsampling(pcap_t *p);
|
|
|
|
/*
|
|
* RPCAP active mode.
|
|
*/
|
|
|
|
/* Maximum length of an host name (needed for the RPCAP active mode) */
|
|
#define RPCAP_HOSTLIST_SIZE 1024
|
|
|
|
PCAP_API SOCKET pcap_remoteact_accept(const char *address, const char *port,
|
|
const char *hostlist, char *connectinghost,
|
|
struct pcap_rmtauth *auth, char *errbuf);
|
|
PCAP_API int pcap_remoteact_list(char *hostlist, char sep, int size,
|
|
char *errbuf);
|
|
PCAP_API int pcap_remoteact_close(const char *host, char *errbuf);
|
|
PCAP_API void pcap_remoteact_cleanup(void);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* lib_pcap_pcap_h */
|