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Diffstat (limited to 'package/siit/src/siit.h')
| -rw-r--r-- | package/siit/src/siit.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/package/siit/src/siit.h b/package/siit/src/siit.h new file mode 100644 index 0000000000..47cf77645f --- /dev/null +++ b/package/siit/src/siit.h @@ -0,0 +1,61 @@ +/* + * 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...) + + + + + + + + |