forked from luck/tmp_suning_uos_patched
[IPv6]: Only modify checksum for UDP
Only change upper-layer checksum from 0 to 0xFFFF for UDP (as RFC 768 states), not for others as RFC 4443 doesn't require it. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -247,8 +247,6 @@ static int icmpv6_push_pending_frames(struct sock *sk, struct flowi *fl, struct
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len, fl->proto, tmp_csum);
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icmp6h->icmp6_cksum = tmp_csum;
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}
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if (icmp6h->icmp6_cksum == 0)
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icmp6h->icmp6_cksum = -1;
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ip6_push_pending_frames(sk);
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out:
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return err;
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@ -536,7 +536,7 @@ static int rawv6_push_pending_frames(struct sock *sk, struct flowi *fl,
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&fl->fl6_dst,
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total_len, fl->proto, tmp_csum);
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if (tmp_csum == 0)
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if (tmp_csum == 0 && fl->proto == IPPROTO_UDP)
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tmp_csum = -1;
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csum = tmp_csum;
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