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Lines 372-377
udp_input(struct mbuf *m, int off)
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else |
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else |
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memset(&save_ip, 0, sizeof(save_ip)); |
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memset(&save_ip, 0, sizeof(save_ip)); |
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#ifdef IPSEC_NAT_T |
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/* |
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* RFC 3948 |
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* |
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* 3.1.2. Transport Mode Decapsulation NAT Procedure |
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* |
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* Depending on local policy, one of the following MUST be done: |
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* |
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* [...] |
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* |
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* 3. If the protocol header after the ESP header is a UDP header, set |
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* the checksum field to zero in the UDP header. [...] |
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*/ |
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if (m_tag_find(m, PACKET_TAG_IPSEC_NAT_T_PORTS, NULL) != NULL) { |
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uh->uh_sum = 0; |
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} |
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#endif |
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/* |
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/* |
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* Checksum extended UDP header and data. |
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* Checksum extended UDP header and data. |
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*/ |
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*/ |