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One more round on the H/W supported checksum code: Fix NICs that can't do

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the pseudo header. We really need the TCP packet length here. This happens
to end up in ip->ip_len in tcp_input.c, but here we should get it from the
len function variable instead.

Submitted by:	yongari
Tested by:	Nicolas Linard, yongari (sparc64 + hme)
MFC after:	5 days
This commit is contained in:
Max Laier 2004-09-11 11:18:25 +00:00
parent 1e7fad6b6a
commit c9f6794e2e
1 changed files with 2 additions and 3 deletions
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5
sys/contrib/pf/net/pf.c
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@ -5619,9 +5619,8 @@ pf_check_proto_cksum(struct mbuf *m, int off, int len, u_int8_t p, sa_family_t a
} else {
ip = mtod(m, struct ip *);
sum = in_pseudo(ip->ip_src.s_addr,
ip->ip_dst.s_addr,
htonl(m->m_pkthdr.csum_data +
IPPROTO_TCP + ntohs(ip->ip_len)));
ip->ip_dst.s_addr, htonl((u_short)len +
m->m_pkthdr.csum_data + IPPROTO_TCP));
}
sum ^= 0xffff;
++hw_assist;