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- /*
- * $Id: libnet-macros.h,v 1.6 2004/03/01 20:26:12 mike Exp $
- *
- * libnet-macros.h - Network routine library macro header file
- *
- * Copyright (c) 1998 - 2004 Mike D. Schiffman <mike@infonexus.com>
- * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
- *
- */
-
- #ifndef __LIBNET_MACROS_H
- #define __LIBNET_MACROS_H
- /**
- * @file libnet-macros.h
- * @brief libnet macros and symbloc constants
- */
-
- /* for systems without snprintf */
- #if defined(NO_SNPRINTF)
- #define snprintf(buf, len, args...) sprintf(buf, ##args)
- #endif
-
-
- /**
- * Used for libnet's name resolution functions, specifies that no DNS lookups
- * should be performed and the IP address should be kept in numeric form.
- */
- #define LIBNET_DONT_RESOLVE 0
-
- /**
- * Used for libnet's name resolution functions, specifies that a DNS lookup
- * can be performed if needed to resolve the IP address to a canonical form.
- */
- #define LIBNET_RESOLVE 1
-
- /**
- * Used several places, to specify "on" or "one"
- */
- #define LIBNET_ON 0
-
- /**
- * Used several places, to specify "on" or "one"
- */
- #define LIBNET_OFF 1
-
- /**
- * IPv6 error code
- */
- #ifndef IN6ADDR_ERROR_INIT
- #define IN6ADDR_ERROR_INIT { { { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
- 0xff, 0xff } } }
- #endif
-
- /**
- * Used for libnet_get_prand() to specify function disposition
- */
- #define LIBNET_PR2 0
- #define LIBNET_PR8 1
- #define LIBNET_PR16 2
- #define LIBNET_PRu16 3
- #define LIBNET_PR32 4
- #define LIBNET_PRu32 5
- #define LIBNET_PRAND_MAX 0xffffffff
-
- /**
- * The biggest an IP packet can be -- 65,535 bytes.
- */
- #define LIBNET_MAX_PACKET 0xffff
- #ifndef IP_MAXPACKET
- #define IP_MAXPACKET 0xffff
- #endif
-
-
- /* ethernet addresses are 6 octets long */
- #ifndef ETHER_ADDR_LEN
- #define ETHER_ADDR_LEN 0x6
- #endif
-
- /* FDDI addresses are 6 octets long */
- #ifndef FDDI_ADDR_LEN
- #define FDDI_ADDR_LEN 0x6
- #endif
-
- /* token ring addresses are 6 octets long */
- #ifndef TOKEN_RING_ADDR_LEN
- #define TOKEN_RING_ADDR_LEN 0x6
- #endif
-
- /* LLC Organization Code is 3 bytes long */
- #define LIBNET_ORG_CODE_SIZE 0x3
-
- /**
- * The libnet error buffer is 256 bytes long.
- */
- #define LIBNET_ERRBUF_SIZE 0x100
-
- /**
- * IP and TCP options can be up to 40 bytes long.
- */
- #define LIBNET_MAXOPTION_SIZE 0x28
-
- /* some BSD variants have this endianess problem */
- #if (LIBNET_BSD_BYTE_SWAP)
- #define FIX(n) ntohs(n)
- #define UNFIX(n) htons(n)
- #else
- #define FIX(n) (n)
- #define UNFIX(n) (n)
- #endif
-
- /* used internally for checksum stuff */
- #define LIBNET_CKSUM_CARRY(x) \
- (x = (x >> 16) + (x & 0xffff), (~(x + (x >> 16)) & 0xffff))
-
- /* used interally for OSPF stuff */
- #define LIBNET_OSPF_AUTHCPY(x, y) \
- memcpy((u_int8_t *)x, (u_int8_t *)y, sizeof(y))
- #define LIBNET_OSPF_CKSUMBUF(x, y) \
- memcpy((u_int8_t *)x, (u_int8_t *)y, sizeof(y))
-
- /* used internally for NTP leap indicator, version, and mode */
- #define LIBNET_NTP_DO_LI_VN_MODE(li, vn, md) \
- ((u_int8_t)((((li) << 6) & 0xc0) | (((vn) << 3) & 0x38) | ((md) & 0x7)))
-
- /* Not all systems have IFF_LOOPBACK */
- #ifdef IFF_LOOPBACK
- #define LIBNET_ISLOOPBACK(p) ((p)->ifr_flags & IFF_LOOPBACK)
- #else
- #define LIBNET_ISLOOPBACK(p) (strcmp((p)->ifr_name, "lo0") == 0)
- #endif
-
- /* advanced mode check */
- #define LIBNET_ISADVMODE(x) (x & 0x08)
-
- /* context queue macros and constants */
- #define LIBNET_LABEL_SIZE 64
- #define LIBNET_LABEL_DEFAULT "cardshark"
- #define CQ_LOCK_UNLOCKED (u_int)0x00000000
- #define CQ_LOCK_READ (u_int)0x00000001
- #define CQ_LOCK_WRITE (u_int)0x00000002
-
- /**
- * Provides an interface to iterate through the context queue of libnet
- * contexts. Before calling this macro, be sure to set the queue using
- * libnet_cq_head().
- */
- #define for_each_context_in_cq(l) \
- for (l = libnet_cq_head(); libnet_cq_last(); l = libnet_cq_next())
-
- /* return 1 if write lock is set on cq */
- #define cq_is_wlocked() (l_cqd.cq_lock & CQ_LOCK_WRITE)
-
- /* return 1 if read lock is set on cq */
- #define cq_is_rlocked() (l_cqd.cq_lock & CQ_LOCK_READ)
-
- /* return 1 if any lock is set on cq */
- #define cq_is_locked() (l_cqd.cq_lock & (CQ_LOCK_READ | CQ_LOCK_WRITE))
-
- /* check if a context queue is locked */
- #define check_cq_lock(x) (l_cqd.cq_lock & x)
-
- #endif /* __LIBNET_MACROS_H */
-
- /* EOF */
-