(usagi-users 02699) problem with retransmit packet

[Kazutaka Tachibana <Kazutaka.Tachibana@xxxxxxxxxxx>]

Hi.

I'm facing problem with TCP retransmit packet has
incorrcet cheksum when using IPsec( not Authenticate,
only Cipher ).

I expect Usagi Kernel encrypted plain text and made cipher
text, then already plain text had disappeared.
so, when sent retransmit TCP packet, encrypted cipher
text. after all, encrypted two times.

In fact、dumping packet appleyed IPsec( Using block cipher,
for example 3DES-CBC), and compared first packet with
retransmit packet, I found top of about 20byte(maybe TCP header,
always kernel made)were the same with first packet,
but except 20byte(maybe data)were not the same.

This is Usagi's bug? or my mistake?

I'm runnig usagi stable 4.1 on RedHat9.0.