embedaddon/libnet/include/libnet/libnet-macros.h - view

File: [ELWIX - Embedded LightWeight unIX -] / embedaddon / libnet / include / libnet / libnet-macros.h
Revision 1.1.1.3 (vendor branch): download - view: text, annotated - select for diffs - revision graph
Wed Sep 27 11:11:38 2023 UTC (15 months ago) by misho
Branches: libnet, MAIN
CVS tags: v1_2p1, HEAD

Version 1.2p1

/* * $Id: libnet-macros.h,v 1.1.1.3 2023/09/27 11:11:38 misho 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 symbolic constants */ /** * 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 packet builders */ #define LIBNET_DO_PAYLOAD(l, p) \ if (payload_s && !payload) \ { \ snprintf(l->err_buf, LIBNET_ERRBUF_SIZE, \ "%s(): payload inconsistency\n", __func__); \ goto bad; \ } \ if (payload_s) \ { \ n = libnet_pblock_append(l, p, payload, payload_s); \ if (n == (uint32_t) - 1) \ { \ goto bad; \ } \ } \ /* 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((uint8_t *)x, (uint8_t *)y, sizeof(y)) #define LIBNET_OSPF_CKSUMBUF(x, y) \ memcpy((uint8_t *)x, (uint8_t *)y, sizeof(y)) /* used internally for NTP leap indicator, version, and mode */ #define LIBNET_NTP_DO_LI_VN_MODE(li, vn, md) \ ((uint8_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, "lo") == 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 */ /** * Local Variables: * indent-tabs-mode: nil * c-file-style: "stroustrup" * End: */