tcpreplay/tcpreplay.h

/* $Id: tcpreplay.h 767 2004-10-06 12:48:49Z aturner $ */

/*
 * Copyright (c) 2001-2004 Aaron Turner, Matt Bing.
 * All rights reserved.
 *
 * Copyright (c) 1999 Anzen Computing. 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 Anzen Computing, Inc.
 * 4. Neither the names of the copyright owners nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED ``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 AUTHORS OR COPYRIGHT HOLDERS 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.
 */

#ifndef _TCPREPLAY_H_
#define _TCPREPLAY_H_

#include "config.h"

#include <libnet.h>
#include <pcap.h>
#include <sys/time.h>
#include "timer.h"
#include "cache.h"
#include "dlt.h"

/* Map libnet 1.1 structs to shorter names for internal use */
typedef libnet_t LIBNET;
#define LIBNET_IP_H LIBNET_IPV4_H
#define LIBNET_ICMP_H LIBNET_ICMPV4_H

/* The release version of libnet 1.1.1 changed DNS */
#ifdef LIBNET_DNSV4_H
#define LIBNET_DNS_H LIBNET_DNSV4_H
#else
#define LIBNET_DNS_H LIBNET_UDP_DNSV4_H
#endif

/* standardize all common header typedefs */
typedef struct libnet_ipv4_hdr ip_hdr_t;
typedef struct libnet_dnsv4_hdr dns_hdr_t;
typedef struct libnet_icmpv4_hdr icmp_hdr_t;
typedef struct libnet_arp_hdr arp_hdr_t;
typedef struct libnet_tcp_hdr tcp_hdr_t;
typedef struct libnet_udp_hdr udp_hdr_t;
typedef struct libnet_ethernet_hdr eth_hdr_t;

#define DEFAULT_MTU 1500        /* Max Transmission Unit of standard ethernet
                                 * don't forget *frames* are MTU + L2 header! */
#define MAXPACKET 16436         /* MTU of Linux loopback */
#define MAX_SNAPLEN 65535       /* tell libpcap to capture the entire packet */

/* run-time options */
struct options {
    LIBNET *intf1;
    LIBNET *intf2;
    pcap_t *listen1;
    pcap_t *listen2;
    pcap_t *savepcap;
    pcap_t *savepcap2;
    pcap_dumper_t *savedumper;
    pcap_dumper_t *savedumper2;
    char intf1_mac[ETHER_ADDR_LEN];
    char intf2_mac[ETHER_ADDR_LEN];
    char intf1_smac[ETHER_ADDR_LEN];
    char intf2_smac[ETHER_ADDR_LEN];
    int datadump_mode;
    int datadumpfile;
    int datadumpfile2;
    int break_percent;
    float rate;
    float mult;
    float packetrate;
    int one_at_a_time;
    int n_iter;
    int cache_packets;
    int no_martians;
    int topspeed;
    int fixchecksums;
    int cidr;
    int trunc;
    long int seed;
    int rewriteip;
    int rewriteports;
    int mtu;
    int truncate;
    char **files;
    char *cache_files;
    u_int64_t offset; 
    u_int64_t limit_send;
    char *bpf_filter;
    int bpf_optimize;
    int sniff_snaplen;
    int sniff_bridge;
    int promisc;
    int poll_timeout;
    int verbose;
    int one_output;
    char *tcpprep_comment;
    char break_type;
};

#define RESOLVE 0               /* disable dns lookups */
#define BPF_OPTIMIZE 1          /* default is to optimize bpf program */
#define PCAP_TIMEOUT 100        /* 100ms pcap_open_live timeout */

#define TRUE 1
#define FALSE 0

#define EBUF_SIZE 256           /* size of our error buffers */
#define MAC_SIZE  7             /* size of the mac[] buffer */

#define CIDR_MODE 1             /* single pass, CIDR netblock */
#define REGEX_MODE 2            /* single pass, Regex */
#define AUTO_MODE 4             /* first pass through in auto mode */
#define PORT_MODE 8             /* single pass, use src/dst ports to split */
#define ROUTER_MODE 16          /* second pass through in router/auto mode */
#define BRIDGE_MODE 32          /* second pass through in bridge/auto mode */
#define SERVER_MODE 64          /* second pass through in client/auto mode */
#define CLIENT_MODE 128         /* second pass through in server/auto mode */

#define L2DATALEN 255           /* Max size of the L2 data file */

#define DNS_QUERY_FLAG 0x8000

#define SERVER 1
#define CLIENT 0
#define UNKNOWN -1
#define ANY 2

#define DEBUG_INFO 1            /* informational only, lessthan 1 line per packet */
#define DEBUG_BASIC 2           /* limited debugging, one line per packet */
#define DEBUG_DETAILED 3        /* more detailed, a few lines per packet */
#define DEBUG_CODE 4            /* examines code & values, many lines per packet */

#define PAD_PACKET 1            /* values for the 'uflag' in tcpreplay */
#define TRUNC_PACKET 2


#ifndef SWAPLONG
#define SWAPLONG(y) \
((((y)&0xff)<<24) | (((y)&0xff00)<<8) | (((y)&0xff0000)>>8) | (((y)>>24)&0xff))
#endif

#ifndef SWAPSHORT
#define SWAPSHORT(y) \
( (((y)&0xff)<<8) | ((u_short)((y)&0xff00)>>8) )
#endif

#define NULL_MAC "\0\0\0\0\0\0"
#define BROADCAST_MAC "\FF\FF\FF\FF\FF\FF"

/* MAC macros for printf */
#define MAC_FORMAT "%02X:%02X:%02X:%02X:%02X:%02X"
#define MAC_STR(x) x[0], x[1], x[2], x[3], x[4], x[5]

/* converts a 64bit int to network byte order */
#ifndef ntohll
#ifdef WORDS_BIGENDIAN
#define ntohll(x) (x)
#define htonll(x) (x)
#else
/* stolen from http://www.codeproject.com/cpp/endianness.asp */
#define ntohll(x) (((u_int64_t)(ntohl((int)((x << 32) >> 32))) << 32) | \
                     (unsigned int)ntohl(((int)(x >> 32))))
#define htonll(x) ntohll(x)
#endif /* WORDS_BIGENDIAN */
#endif /* ntholl */

#endif