version 1.153, 2002/06/13 16:25:54 |
version 1.154, 2002/06/30 22:40:34 |
Line 420 ip_input(struct mbuf *m) |
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Line 420 ip_input(struct mbuf *m) |
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if (TAILQ_FIRST(&in_ifaddr) == 0) |
if (TAILQ_FIRST(&in_ifaddr) == 0) |
goto bad; |
goto bad; |
ipstat.ips_total++; |
ipstat.ips_total++; |
if (m->m_len < sizeof (struct ip) && |
/* |
(m = m_pullup(m, sizeof (struct ip))) == 0) { |
* If the IP header is not aligned, slurp it up into a new |
ipstat.ips_toosmall++; |
* mbuf with space for link headers, in the event we forward |
return; |
* it. Otherwise, if it is aligned, make sure the entire |
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* base IP header is in the first mbuf of the chain. |
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*/ |
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if (IP_HDR_ALIGNED_P(mtod(m, caddr_t)) == 0) { |
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if ((m = m_copyup(m, sizeof(struct ip), |
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(max_linkhdr + 3) & ~3)) == NULL) { |
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/* XXXJRT new stat, please */ |
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ipstat.ips_toosmall++; |
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return; |
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} |
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} else if (__predict_false(m->m_len < sizeof (struct ip))) { |
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if ((m = m_pullup(m, sizeof (struct ip))) == NULL) { |
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ipstat.ips_toosmall++; |
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return; |
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} |
} |
} |
ip = mtod(m, struct ip *); |
ip = mtod(m, struct ip *); |
if (ip->ip_v != IPVERSION) { |
if (ip->ip_v != IPVERSION) { |