Annotation of embedaddon/libnet/include/libnet/libnet-macros.h, revision 1.1
1.1 ! misho 1: /*
! 2: * $Id: libnet-macros.h,v 1.6 2004/03/01 20:26:12 mike Exp $
! 3: *
! 4: * libnet-macros.h - Network routine library macro header file
! 5: *
! 6: * Copyright (c) 1998 - 2004 Mike D. Schiffman <mike@infonexus.com>
! 7: * All rights reserved.
! 8: *
! 9: * Redistribution and use in source and binary forms, with or without
! 10: * modification, are permitted provided that the following conditions
! 11: * are met:
! 12: * 1. Redistributions of source code must retain the above copyright
! 13: * notice, this list of conditions and the following disclaimer.
! 14: * 2. Redistributions in binary form must reproduce the above copyright
! 15: * notice, this list of conditions and the following disclaimer in the
! 16: * documentation and/or other materials provided with the distribution.
! 17: *
! 18: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
! 19: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 20: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 21: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
! 22: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 23: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 24: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 25: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 26: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 27: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 28: * SUCH DAMAGE.
! 29: *
! 30: */
! 31:
! 32: #ifndef __LIBNET_MACROS_H
! 33: #define __LIBNET_MACROS_H
! 34: /**
! 35: * @file libnet-macros.h
! 36: * @brief libnet macros and symbloc constants
! 37: */
! 38:
! 39: /* for systems without snprintf */
! 40: #if defined(NO_SNPRINTF)
! 41: #define snprintf(buf, len, args...) sprintf(buf, ##args)
! 42: #endif
! 43:
! 44:
! 45: /**
! 46: * Used for libnet's name resolution functions, specifies that no DNS lookups
! 47: * should be performed and the IP address should be kept in numeric form.
! 48: */
! 49: #define LIBNET_DONT_RESOLVE 0
! 50:
! 51: /**
! 52: * Used for libnet's name resolution functions, specifies that a DNS lookup
! 53: * can be performed if needed to resolve the IP address to a canonical form.
! 54: */
! 55: #define LIBNET_RESOLVE 1
! 56:
! 57: /**
! 58: * Used several places, to specify "on" or "one"
! 59: */
! 60: #define LIBNET_ON 0
! 61:
! 62: /**
! 63: * Used several places, to specify "on" or "one"
! 64: */
! 65: #define LIBNET_OFF 1
! 66:
! 67: /**
! 68: * IPv6 error code
! 69: */
! 70: #ifndef IN6ADDR_ERROR_INIT
! 71: #define IN6ADDR_ERROR_INIT { { { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
! 72: 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
! 73: 0xff, 0xff } } }
! 74: #endif
! 75:
! 76: /**
! 77: * Used for libnet_get_prand() to specify function disposition
! 78: */
! 79: #define LIBNET_PR2 0
! 80: #define LIBNET_PR8 1
! 81: #define LIBNET_PR16 2
! 82: #define LIBNET_PRu16 3
! 83: #define LIBNET_PR32 4
! 84: #define LIBNET_PRu32 5
! 85: #define LIBNET_PRAND_MAX 0xffffffff
! 86:
! 87: /**
! 88: * The biggest an IP packet can be -- 65,535 bytes.
! 89: */
! 90: #define LIBNET_MAX_PACKET 0xffff
! 91: #ifndef IP_MAXPACKET
! 92: #define IP_MAXPACKET 0xffff
! 93: #endif
! 94:
! 95:
! 96: /* ethernet addresses are 6 octets long */
! 97: #ifndef ETHER_ADDR_LEN
! 98: #define ETHER_ADDR_LEN 0x6
! 99: #endif
! 100:
! 101: /* FDDI addresses are 6 octets long */
! 102: #ifndef FDDI_ADDR_LEN
! 103: #define FDDI_ADDR_LEN 0x6
! 104: #endif
! 105:
! 106: /* token ring addresses are 6 octets long */
! 107: #ifndef TOKEN_RING_ADDR_LEN
! 108: #define TOKEN_RING_ADDR_LEN 0x6
! 109: #endif
! 110:
! 111: /* LLC Organization Code is 3 bytes long */
! 112: #define LIBNET_ORG_CODE_SIZE 0x3
! 113:
! 114: /**
! 115: * The libnet error buffer is 256 bytes long.
! 116: */
! 117: #define LIBNET_ERRBUF_SIZE 0x100
! 118:
! 119: /**
! 120: * IP and TCP options can be up to 40 bytes long.
! 121: */
! 122: #define LIBNET_MAXOPTION_SIZE 0x28
! 123:
! 124: /* some BSD variants have this endianess problem */
! 125: #if (LIBNET_BSD_BYTE_SWAP)
! 126: #define FIX(n) ntohs(n)
! 127: #define UNFIX(n) htons(n)
! 128: #else
! 129: #define FIX(n) (n)
! 130: #define UNFIX(n) (n)
! 131: #endif
! 132:
! 133: /* used internally for checksum stuff */
! 134: #define LIBNET_CKSUM_CARRY(x) \
! 135: (x = (x >> 16) + (x & 0xffff), (~(x + (x >> 16)) & 0xffff))
! 136:
! 137: /* used interally for OSPF stuff */
! 138: #define LIBNET_OSPF_AUTHCPY(x, y) \
! 139: memcpy((u_int8_t *)x, (u_int8_t *)y, sizeof(y))
! 140: #define LIBNET_OSPF_CKSUMBUF(x, y) \
! 141: memcpy((u_int8_t *)x, (u_int8_t *)y, sizeof(y))
! 142:
! 143: /* used internally for NTP leap indicator, version, and mode */
! 144: #define LIBNET_NTP_DO_LI_VN_MODE(li, vn, md) \
! 145: ((u_int8_t)((((li) << 6) & 0xc0) | (((vn) << 3) & 0x38) | ((md) & 0x7)))
! 146:
! 147: /* Not all systems have IFF_LOOPBACK */
! 148: #ifdef IFF_LOOPBACK
! 149: #define LIBNET_ISLOOPBACK(p) ((p)->ifr_flags & IFF_LOOPBACK)
! 150: #else
! 151: #define LIBNET_ISLOOPBACK(p) (strcmp((p)->ifr_name, "lo0") == 0)
! 152: #endif
! 153:
! 154: /* advanced mode check */
! 155: #define LIBNET_ISADVMODE(x) (x & 0x08)
! 156:
! 157: /* context queue macros and constants */
! 158: #define LIBNET_LABEL_SIZE 64
! 159: #define LIBNET_LABEL_DEFAULT "cardshark"
! 160: #define CQ_LOCK_UNLOCKED (u_int)0x00000000
! 161: #define CQ_LOCK_READ (u_int)0x00000001
! 162: #define CQ_LOCK_WRITE (u_int)0x00000002
! 163:
! 164: /**
! 165: * Provides an interface to iterate through the context queue of libnet
! 166: * contexts. Before calling this macro, be sure to set the queue using
! 167: * libnet_cq_head().
! 168: */
! 169: #define for_each_context_in_cq(l) \
! 170: for (l = libnet_cq_head(); libnet_cq_last(); l = libnet_cq_next())
! 171:
! 172: /* return 1 if write lock is set on cq */
! 173: #define cq_is_wlocked() (l_cqd.cq_lock & CQ_LOCK_WRITE)
! 174:
! 175: /* return 1 if read lock is set on cq */
! 176: #define cq_is_rlocked() (l_cqd.cq_lock & CQ_LOCK_READ)
! 177:
! 178: /* return 1 if any lock is set on cq */
! 179: #define cq_is_locked() (l_cqd.cq_lock & (CQ_LOCK_READ | CQ_LOCK_WRITE))
! 180:
! 181: /* check if a context queue is locked */
! 182: #define check_cq_lock(x) (l_cqd.cq_lock & x)
! 183:
! 184: #endif /* __LIBNET_MACROS_H */
! 185:
! 186: /* EOF */
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