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IPv6 UDP checksum calculation was broken. (Matti Mantere)

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This commit is contained in:
Robin Sommer 2011-01-19 10:08:42 -08:00
parent 06bd8baef6
commit ffaa20602c
1 changed files with 3 additions and 1 deletions
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4
src/net_util.cc
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@ -97,7 +97,9 @@ int udp6_checksum(const struct ip6_hdr* ip6, const struct udphdr* up, int len)
sum = ones_complement_checksum((void*) ip6->ip6_src.s6_addr, 16, sum); sum = ones_complement_checksum((void*) ip6->ip6_src.s6_addr, 16, sum);
sum = ones_complement_checksum((void*) ip6->ip6_dst.s6_addr, 16, sum); sum = ones_complement_checksum((void*) ip6->ip6_dst.s6_addr, 16, sum);
sum = ones_complement_checksum((void*) &len, 4, sum); uint32 l = htonl(len);
sum = ones_complement_checksum((void*) &l, 4, sum);
uint32 addl_pseudo = htons(IPPROTO_UDP); uint32 addl_pseudo = htons(IPPROTO_UDP);
sum = ones_complement_checksum((void*) &addl_pseudo, 4, sum); sum = ones_complement_checksum((void*) &addl_pseudo, 4, sum);
sum = ones_complement_checksum((void*) up, len, sum); sum = ones_complement_checksum((void*) up, len, sum);