diff options
| -rw-r--r-- | ip6t_MAP66.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/ip6t_MAP66.c b/ip6t_MAP66.c index 18765b5..433586d 100644 --- a/ip6t_MAP66.c +++ b/ip6t_MAP66.c @@ -66,21 +66,14 @@ static void map_csum( u_int16_t csum_to, u_int16_t* csum_transport) { - printk("SOT len=%d, csum = %04hx\n", len_to, - ~add16( - add16( - ~(*csum_transport), - ~csum16((u_int16_t *)&addr, len_to) - ), - csum16((u_int16_t *)&to, len_to) - ) - ); - *csum_transport = ~add16( - ~csum_to, - add16(~*csum_transport, ~csum16((u_int16_t *)&addr, len_to)) + add16( + ~(*csum_transport), + ~csum16((u_int16_t *)addr, len_to) + ), + ~csum_to ); - memcpy(addr, to, sizeof(u_int16_t) * len_to); + memcpy(addr, to, len_to * 2); } #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) @@ -260,6 +253,17 @@ static unsigned int MAP66_tg6( pr_devel("MAP66: SRC_TO, ip_summed=%d\n", skb->ip_summed); if (0 != (IP6T_MAP66_OPT_CSUM & info->mapflags)) { map_csum(&hdr->saddr, &info->pfix_src_to, info->pfix_src_len, info->pfix_src_csum, csum_transport); +#if 0 + *csum_transport = ~add16( + add16( + ~(*csum_transport), + ~csum16((u_int16_t *)&hdr->saddr, info->pfix_src_len) + ), + ~info->pfix_src_csum + ); + memcpy(&hdr->saddr, &info->pfix_src_to, info->pfix_src_len * 2); +#endif + pr_devel("SOT src: cksum=%p(%04hx)\n", csum_transport, *csum_transport); { u_int16_t csum = 0; |