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udp_proxy: show encrypted messages as encrypted

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Manuel Pégourié-Gonnard 2014-09-25 12:59:05 +02:00 committed by Paul Bakker
parent 18e519a660
commit 8cc7e03ae0
1 changed files with 9 additions and 1 deletions
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10
programs/test/udp_proxy.c
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@ -222,7 +222,15 @@ static const char *msg_type( unsigned char *msg, size_t len )
default: return( "Unknown" ); default: return( "Unknown" );
} }
if( len < 13 ) return( "Invalid handshake" ); if( len < 13 + 12 ) return( "Invalid handshake" );
/*
* Our handshake message are less than 2^16 bytes long, so they should
* have 0 as the first byte of length, frag_offset and frag_length.
* Otherwise, assume they are encrypted.
*/
if( msg[14] || msg[19] || msg[22] ) return( "Encrypted handshake" );
switch( msg[13] ) switch( msg[13] )
{ {
case SSL_HS_HELLO_REQUEST: return( "HelloRequest" ); case SSL_HS_HELLO_REQUEST: return( "HelloRequest" );