module pcap;
/* -*- Mode: c; tab-width: 8; indent-tabs-mode: 1; c-basic-offset: 8; -*- */
/*
* Copyright (c) 1993, 1994, 1995, 1996, 1997
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the Computer Systems
* Engineering Group at Lawrence Berkeley Laboratory.
* 4. Neither the name of the University nor of the Laboratory may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#) $Header: /tcpdump/master/libpcap/pcap/pcap.h,v 1.4.2.11 2008-10-06 15:38:39 gianluca Exp $ (LBL)
*/
import bpf;
import std.c.time;
version(Windows){
//import pcapStdinc;
import std.c.windows.winsock;
}
version(OSX){
import std.c.osx.socket;
}
version(linux){
import std.c.linux.socket;
}
version(FreeBSD){
import std.c.freebsd.socket;
}
//import pcap.bpf;
import std.stdio;
extern (C) {
const PCAP_VERSION_MAJOR=2;
const PCAP_VERSION_MINOR=4;
const PCAP_ERRBUF_SIZE=256;
//incomplete c types, void * does the job?
alias void * pcap_t;
alias void * pcap_dumper_t;
alias pcap_if pcap_if_t;
alias pcap_addr pcap_addr_t;
/*
* The first record in the file contains saved values for some
* of the flags used in the printout phases of tcpdump.
* Many fields here are 32 bit ints so compilers won't insert unwanted
* padding; these files need to be interchangeable across architectures.
*
* Do not change the layout of this structure, in any way (this includes
* changes that only affect the length of fields in this structure).
*
* Also, do not change the interpretation of any of the members of this
* structure, in any way (this includes using values other than
* LINKTYPE_ values, as defined in "savefile.c", in the "linktype"
* field).
*
* Instead:
*
* introduce a new structure for the new format, if the layout
* of the structure changed;
*
* send mail to "tcpdump-workers@lists.tcpdump.org", requesting
* a new magic number for your new capture file format, and, when
* you get the new magic number, put it in "savefile.c";
*
* use that magic number for save files with the changed file
* header;
*
* make the code in "savefile.c" capable of reading files with
* the old file header as well as files with the new file header
* (using the magic number to determine the header format).
*
* Then supply the changes as a patch at
*
* http://sourceforge.net/projects/libpcap/
*
* so that future versions of libpcap and programs that use it (such as
* tcpdump) will be able to read your new capture file format.
*/
struct pcap_file_header {
uint magic;
ushort version_major;
ushort version_minor;
int thiszone; /* gmt to local correction */
uint sigfigs; /* accuracy of timestamps */
uint snaplen; /* max length saved portion of each pkt */
uint linktype; /* data link type (LINKTYPE_*) */
}
/*
* Macros for the value returned by pcap_datalink_ext().
*
* If LT_FCS_LENGTH_PRESENT(x) is true, the LT_FCS_LENGTH(x) macro
* gives the FCS length of packets in the capture.
*/
//not even going to try...
/*#define LT_FCS_LENGTH_PRESENT(x) ((x) & 0x04000000)
#define LT_FCS_LENGTH(x) (((x) & 0xF0000000) >> 28)
#define LT_FCS_DATALINK_EXT(x) ((((x) & 0xF) << 28) | 0x04000000)*/
enum pcap_direction_t{
PCAP_D_INOUT = 0,
PCAP_D_IN,
PCAP_D_OUT
}
/*
* Generic per-packet information, as supplied by libpcap.
*
* The time stamp can and should be a "struct timeval", regardless of
* whether your system supports 32-bit tv_sec in "struct timeval",
* 64-bit tv_sec in "struct timeval", or both if it supports both 32-bit
* and 64-bit applications. The on-disk format of savefiles uses 32-bit
* tv_sec (and tv_usec); this structure is irrelevant to that. 32-bit
* and 64-bit versions of libpcap, even if they're on the same platform,
* should supply the appropriate version of "struct timeval", even if
* that's not what the underlying packet capture mechanism supplies.
*/
struct pcap_pkthdr {
timeval ts; /* time stamp */
uint caplen; /* length of portion present */
uint len; /* length this packet (off wire) */
}
/*
* As returned by the pcap_stats()
*/
struct pcap_stat {
uint ps_recv; /* number of packets received */
uint ps_drop; /* number of packets dropped */
uint ps_ifdrop; /* drops by interface XXX not yet supported */
//NOT SUPPORTED
version(HAVE_REMOTE){
uint ps_capt; /* number of packets that are received by the application; please get rid off the Win32 ifdef */
uint ps_sent; /* number of packets sent by the server on the network */
uint ps_netdrop; /* number of packets lost on the network */
}
}
/*
* Item in a list of interfaces.
*/
struct pcap_if {
pcap_if *next;
char *name; /* name to hand to "pcap_open_live()" */
char *description; /* textual description of interface, or NULL */
pcap_addr *addresses;
uint flags; /* PCAP_IF_ interface flags */
}
const PCAP_IF_LOOPBACK= 0x00000001; /* interface is loopback */
/*
* Representation of an interface address.
*/
struct pcap_addr {
pcap_addr *next;
sockaddr *addr; /* address */
sockaddr *netmask; /* netmask for that address */
sockaddr *broadaddr; /* broadcast address for that address */
sockaddr *dstaddr; /* P2P destination address for that address */
}
/*alias void (*pcap_handler)(ubyte *, const struct pcap_pkthdr *,
const ubyte *);*/
/*
* Error codes for the pcap API.
* These will all be negative, so you can check for the success or
* failure of a call that returns these codes by checking for a
* negative value.
*/
const PCAP_ERROR = -1 ;/* generic error code */
const PCAP_ERROR_BREAK = -2 ;/* loop terminated by pcap_breakloop */
const PCAP_ERROR_NOT_ACTIVATED =-3 ;/* the capture needs to be activated */
const PCAP_ERROR_ACTIVATED =-4 ;/* the operation can't be performed on already activated captures */
const PCAP_ERROR_NO_SUCH_DEVICE =-5 ;/* no such device exists */
const PCAP_ERROR_RFMON_NOTSUP = -6; /* this device doesn't support rfmon (monitor) mode */
const PCAP_ERROR_NOT_RFMON =-7 ;/* operation supported only in monitor mode */
const PCAP_ERROR_PERM_DENIED = -8; /* no permission to open the device */
const PCAP_ERROR_IFACE_NOT_UP = -9; /* interface isn't up */
/*
* Warning codes for the pcap API.
* These will all be positive and non-zero, so they won't look like
* errors.
*/
const PCAP_WARNING = 1; /* generic warning code */
const PCAP_WARNING_PROMISC_NOTSUP =2; /* this device doesn't support promiscuous mode */
char *pcap_lookupdev(char *);
int pcap_lookupnet(const char *, uint *, uint *, char *);
pcap_t *pcap_create(const char *, char *);
int pcap_set_snaplen(pcap_t *, int);
int pcap_set_promisc(pcap_t *, int);
int pcap_can_set_rfmon(pcap_t *);
int pcap_set_rfmon(pcap_t *, int);
int pcap_set_timeout(pcap_t *, int);
int pcap_set_buffer_size(pcap_t *, int);
int pcap_activate(pcap_t *);
pcap_t *pcap_open_live(const char *, int, int, int, char *);
pcap_t *pcap_open_dead(int, int);
pcap_t *pcap_open_offline(const char *, char *);
version(Windows){
pcap_t *pcap_hopen_offline(void *_t, char *);
static pcap_t *pcap_fopen_offline(FILE *, char *);
}
else{
pcap_t *pcap_fopen_offline(FILE *, char *);
}
void pcap_close(pcap_t *);
//we don't have a definitio for pcap_handler so
alias void * pcap_handler;
int pcap_loop(pcap_t *, int, pcap_handler, ubyte *);
int pcap_dispatch(pcap_t *, int, pcap_handler, ubyte *);
ubyte*
pcap_next(pcap_t *, pcap_pkthdr *);
int pcap_next_ex(pcap_t *, pcap_pkthdr **, const ubyte **);
void pcap_breakloop(pcap_t *);
int pcap_stats(pcap_t *, pcap_stat *);
int pcap_setfilter(pcap_t *, bpf_program *);
int pcap_setdirection(pcap_t *, pcap_direction_t);
int pcap_getnonblock(pcap_t *, char *);
int pcap_setnonblock(pcap_t *, int, char *);
int pcap_inject(pcap_t *, const void *, size_t);
int pcap_sendpacket(pcap_t *, const ubyte *, int);
char *pcap_statustostr(int);
char *pcap_strerror(int);
char *pcap_geterr(pcap_t *);
void pcap_perror(pcap_t *, char *);
int pcap_compile(pcap_t *, bpf_program *, const char *, int,
uint);
int pcap_compile_nopcap(int, int, bpf_program *,
const char *, int, uint);
void pcap_freecode( bpf_program *);
int pcap_offline_filter( bpf_program *, const pcap_pkthdr *,
const ubyte *);
int pcap_datalink(pcap_t *);
int pcap_datalink_ext(pcap_t *);
int pcap_list_datalinks(pcap_t *, int **);
int pcap_set_datalink(pcap_t *, int);
void pcap_free_datalinks(int *);
int pcap_datalink_name_to_val(const char *);
char *pcap_datalink_val_to_name(int);
char *pcap_datalink_val_to_description(int);
int pcap_snapshot(pcap_t *);
int pcap_is_swapped(pcap_t *);
int pcap_major_version(pcap_t *);
int pcap_minor_version(pcap_t *);
/* XXX */
FILE *pcap_file(pcap_t *);
int pcap_fileno(pcap_t *);
pcap_dumper_t *pcap_dump_open(pcap_t *, const char *);
pcap_dumper_t *pcap_dump_fopen(pcap_t *, FILE *fp);
FILE *pcap_dump_file(pcap_dumper_t *);
long pcap_dump_ftell(pcap_dumper_t *);
int pcap_dump_flush(pcap_dumper_t *);
void pcap_dump_close(pcap_dumper_t *);
void pcap_dump(ubyte *, const pcap_pkthdr *, const ubyte *);
int pcap_findalldevs(pcap_if_t **, char *);
void pcap_freealldevs(pcap_if_t *);
char *pcap_lib_version();
/* XXX this guy lives in the bpf tree */
uint bpf_filter(const bpf_insn *, const ubyte *, uint, uint);
int bpf_validate(const bpf_insn *f, int len);
char *bpf_image(const bpf_insn *, int);
void bpf_dump(const bpf_program *, int);
version(Windows){
/*
* Win32 definitions
*/
int pcap_setbuff(pcap_t *p, int dim);
int pcap_setmode(pcap_t *p, int mode);
int pcap_setmintocopy(pcap_t *p, int size);
}
const MODE_CAPT =0;
const MODE_STAT =1;
const MODE_MON =2;
version(Posix){
/*
* UN*X definitions
*/
int pcap_get_selectable_fd(pcap_t *);
}
//NOT SUPPORTED
version(HAVE_REMOTE){
import remoteExt;
}
}