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Add session deserializing (not completed)

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Signed-off-by: Piotr Nowicki <piotr.nowicki@arm.com>
This commit is contained in:
Piotr Nowicki 2020-03-18 17:27:29 +01:00
parent ab3ecd8ac2
commit 4e192000fa
1 changed files with 123 additions and 4 deletions
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127
programs/ssl/ssl_base64_dump.c
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@ -26,6 +26,7 @@
#include <string.h>
#include "mbedtls/error.h"
#include "mbedtls/base64.h"
#include "mbedtls/md.h"
/*
* This program version
@ -326,8 +327,126 @@ size_t read_next_b64_code( uint8_t *b64, size_t max_len )
void print_deserialized_ssl_session( const uint8_t *ssl, uint32_t len,
int session_cfg_flag )
{
mbedtls_md_type_t peer_cert_digest_type;
uint32_t peer_cert_digest_len, cert_len, ticket_len;
uint32_t verify_result, ticket_lifetime;
/* TODO is keep_peer_certificate? */
char keep_peer_certificate = 1;
const uint8_t *end = ssl + len;
printf( "TODO\n" );
printf( "\nSession info:\n" );
if( session_cfg_flag & SESSION_CONFIG_TIME_BIT )
{
uint64_t start = ( (uint64_t) ssl[0] << 56 ) |
( (uint64_t) ssl[1] << 48 ) |
( (uint64_t) ssl[2] << 40 ) |
( (uint64_t) ssl[3] << 32 ) |
( (uint64_t) ssl[4] << 24 ) |
( (uint64_t) ssl[5] << 16 ) |
( (uint64_t) ssl[6] << 8 ) |
( (uint64_t) ssl[7] );
ssl += 8;
printf( "\tstart: %lu\n", start );
}
printf( "\tciphersuite: 0x%02X%02X\n", ssl[0], ssl[1] );
ssl += 2;
printf( "\tcompression: 0x%02X\n", *ssl++ );
printf( "\tid_len: 0x%02X\n", *ssl++ );
printf( "\tsession ID: ");
print_hex( ssl, 32 );
ssl += 32;
printf( "\tmaster: ");
print_hex( ssl, 48 );
ssl += 48;
verify_result = ( (uint32_t) ssl[0] << 24 ) |
( (uint32_t) ssl[1] << 16 ) |
( (uint32_t) ssl[2] << 8 ) |
( (uint32_t) ssl[3] );
ssl += 4;
printf( "\tverify_result: %u\n", verify_result );
if( SESSION_CONFIG_CRT_BIT & session_cfg_flag )
{
if( keep_peer_certificate )
{
cert_len = ( (uint32_t) ssl[0] << 16 ) |
( (uint32_t) ssl[1] << 8 ) |
( (uint32_t) ssl[2] );
ssl += 3;
printf_dbg( "cert_len: %u\n", cert_len );
if( cert_len > 0 )
{
/* TODO: cert */
printf( "TODO: cert\n" );
ssl += cert_len;
}
}
else
{
peer_cert_digest_type = (mbedtls_md_type_t) *ssl++;
printf( "\tpeer_cert_digest_type: %d\n", (int)peer_cert_digest_type );
peer_cert_digest_len = (uint32_t) *ssl++;
printf_dbg( "peer_cert_digest_len: %u\n", peer_cert_digest_len );
if( peer_cert_digest_len > 0 )
{
/* TODO: peer_cert_digest */
printf( "TODO: peer_cert_digest\n" );
ssl += peer_cert_digest_len;
}
}
}
if( SESSION_CONFIG_CLIENT_TICKET_BIT & session_cfg_flag )
{
ticket_len = ( (uint32_t) ssl[0] << 16 ) |
( (uint32_t) ssl[1] << 8 ) |
( (uint32_t) ssl[2] );
ssl += 3;
printf_dbg( "ticket_len: %u\n", ticket_len );
if( ticket_len > 0 )
{
/* TODO ticket dump */
printf( "TODO ticket dump\n" );
ssl += ticket_len;
}
ticket_lifetime = ( (uint32_t) ssl[0] << 24 ) |
( (uint32_t) ssl[1] << 16 ) |
( (uint32_t) ssl[2] << 8 ) |
( (uint32_t) ssl[3] );
ssl += 4;
printf( "\tticket_lifetime: %u\n", ticket_lifetime );
}
if( SESSION_CONFIG_MFL_BIT & session_cfg_flag )
{
printf( "\tmfl_code: 0x%02X\n", *ssl++ );
}
if( SESSION_CONFIG_TRUNC_HMAC_BIT & session_cfg_flag )
{
printf( "\ttrunc_hmac: 0x%02X\n", *ssl++ );
}
if( SESSION_CONFIG_ETM_BIT & session_cfg_flag )
{
printf( "\tencrypt_then_mac: 0x%02X\n", *ssl++ );
}
if( 0 != ( end - ssl ) )
{
printf_err( "%i bytes left to analyze from session\n", (int32_t)( end - ssl ) );
}
}
/*
@ -496,9 +615,9 @@ void print_deserialized_ssl_context( const uint8_t *ssl, size_t len )
/* TODO: check mbedtls_ssl_update_out_pointers( ssl, ssl->transform ); */
printf( "TODO: check mbedtls_ssl_update_out_pointers( ssl, ssl->transform );\n" );
if( 0 < ( end - ssl ) )
if( 0 != ( end - ssl ) )
{
printf_dbg( "Left to analyze %u\n", (uint32_t)( end - ssl ) );
printf_err( "%i bytes left to analyze from context\n", (int32_t)( end - ssl ) );
}
printf( "\n" );
}
@ -522,7 +641,7 @@ int main( int argc, char *argv[] )
{
int ret;
printf( "%u. Desierializing:\n", ++b64_counter );
printf( "%u. Deserializing...\n", ++b64_counter );
if( debug )
{