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/*
* siit.h -- definitions for the SIIT module
*
*
*/
/*
* Constants
*/
/* SIIT_ETH control the name of SIIT interface:
* 0 - interface name is siit0,
* 1 - interface name is ethX.
*/
#define SIIT_ETH 0
#define BUFF_SIZE 4096
#define FRAG_BUFF_SIZE 1232 /* IPv6 max fragment size without IPv6 header
* to fragmanet IPv4 if result IPv6 packet will be > 1280
*/
#define TRANSLATED_PREFIX 0x0000ffff /* third byte in IPv4-translated addr prefix */
#define MAPPED_PREFIX 0x0000ffff /* third byte in IPv4-mapped addr prefix */
#define IP4_IP6_HDR_DIFF 20 /* diffirence between IPv4 and IPv6 headers */
#define IP6_FRAGMENT_SIZE 8 /* size of Fragment Header */
/* IPv6 header fields masks */
#define IP6F_OFF_MASK 0xfff8 /* mask out offset from frag_off */
#define IP6F_RESERVED_MASK 0x0006 /* reserved bits in frag_off */
#define IP6F_MORE_FRAG 0x0001 /* more-fragments flag */
/*
* Macros to help debugging
*/
#undef PDEBUG /* undef it, just in case */
#ifdef SIIT_DEBUG
# ifdef __KERNEL__
/* This one if debugging is on, and kernel space */
# define PDEBUG(fmt, args...) printk(KERN_DEBUG "siit: " fmt, ## args)
# else
/* This one for user space */
# define PDEBUG(fmt, args...) fprintf(stderr, fmt, ## args)
# endif
#else
# define PDEBUG(fmt, args...) /* not debugging: nothing */
#endif
#undef PDEBUGG
#define PDEBUGG(fmt, args...)
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