version 1.134, 2005/03/11 06:16:16 |
version 1.134.2.1, 2005/04/28 10:49:13 |
Line 1365 udp4_espinudp(m, off, src, so) |
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Line 1365 udp4_espinudp(m, off, src, so) |
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size_t iphdrlen; |
size_t iphdrlen; |
struct ip *ip; |
struct ip *ip; |
struct mbuf *n; |
struct mbuf *n; |
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struct m_tag *tag; |
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struct udphdr *udphdr; |
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u_int16_t sport, dport; |
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/* |
/* |
* Collapse the mbuf chain if the first mbuf is too short |
* Collapse the mbuf chain if the first mbuf is too short |
Line 1415 udp4_espinudp(m, off, src, so) |
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Line 1418 udp4_espinudp(m, off, src, so) |
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} |
} |
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/* |
/* |
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* Get the UDP ports. They are handled in network |
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* order everywhere in IPSEC_NAT_T code. |
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*/ |
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udphdr = (struct udphdr *)(data - skip); |
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sport = udphdr->uh_sport; |
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dport = udphdr->uh_dport; |
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/* |
* Remove the UDP header (and possibly the non ESP marker) |
* Remove the UDP header (and possibly the non ESP marker) |
* IP header lendth is iphdrlen |
* IP header lendth is iphdrlen |
* Before: |
* Before: |
Line 1447 udp4_espinudp(m, off, src, so) |
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Line 1458 udp4_espinudp(m, off, src, so) |
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return 0; |
return 0; |
} |
} |
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/* |
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* Add a PACKET_TAG_IPSEC_NAT_T_PORT tag to remember |
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* the source UDP port. This is required if we want |
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* to select the right SPD for multiple hosts behind |
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* same NAT |
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*/ |
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tag = m_tag_get(PACKET_TAG_IPSEC_NAT_T_PORTS, |
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sizeof(sport) + sizeof(dport), M_WAITOK); |
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((u_int16_t *)(tag + 1))[0] = sport; |
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((u_int16_t *)(tag + 1))[1] = dport; |
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m_tag_prepend(n, tag); |
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esp4_input(n, iphdrlen); |
esp4_input(n, iphdrlen); |
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/* We handled it, it shoudln't be handled by UDP */ |
/* We handled it, it shoudln't be handled by UDP */ |