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No memmove: parse_new_session_ticket()

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Manuel Pégourié-Gonnard 2014-09-10 21:52:12 +02:00 committed by Paul Bakker
parent 0b3400dafa
commit 000d5aec13
1 changed files with 12 additions and 13 deletions
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25
library/ssl_cli.c
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@ -2634,6 +2634,7 @@ static int ssl_parse_new_session_ticket( ssl_context *ssl )
uint32_t lifetime;
size_t ticket_len;
unsigned char *ticket;
const unsigned char *msg;
SSL_DEBUG_MSG( 2, ( "=> parse new session ticket" ) );
@ -2643,8 +2644,6 @@ static int ssl_parse_new_session_ticket( ssl_context *ssl )
return( ret );
}
ssl_hs_rm_dtls_hdr( ssl );
if( ssl->in_msgtype != SSL_MSG_HANDSHAKE )
{
SSL_DEBUG_MSG( 1, ( "bad new session ticket message" ) );
@ -2657,25 +2656,25 @@ static int ssl_parse_new_session_ticket( ssl_context *ssl )
* opaque ticket<0..2^16-1>;
* } NewSessionTicket;
*
* 0 . 0 handshake message type
* 1 . 3 handshake message length
* 4 . 7 ticket_lifetime_hint
* 8 . 9 ticket_len (n)
* 10 . 9+n ticket content
* 0 . 3 ticket_lifetime_hint
* 4 . 5 ticket_len (n)
* 6 . 5+n ticket content
*/
if( ssl->in_msg[0] != SSL_HS_NEW_SESSION_TICKET ||
ssl->in_hslen < 10 )
ssl->in_hslen < 6 + ssl_hs_hdr_len( ssl ) )
{
SSL_DEBUG_MSG( 1, ( "bad new session ticket message" ) );
return( POLARSSL_ERR_SSL_BAD_HS_NEW_SESSION_TICKET );
}
lifetime = ( ssl->in_msg[4] << 24 ) | ( ssl->in_msg[5] << 16 ) |
( ssl->in_msg[6] << 8 ) | ( ssl->in_msg[7] );
msg = ssl->in_msg + ssl_hs_hdr_len( ssl );
ticket_len = ( ssl->in_msg[8] << 8 ) | ( ssl->in_msg[9] );
lifetime = ( msg[0] << 24 ) | ( msg[1] << 16 ) |
( msg[2] << 8 ) | ( msg[3] );
if( ticket_len + 10 != ssl->in_hslen )
ticket_len = ( msg[4] << 8 ) | ( msg[5] );
if( ticket_len + 6 + ssl_hs_hdr_len( ssl ) != ssl->in_hslen )
{
SSL_DEBUG_MSG( 1, ( "bad new session ticket message" ) );
return( POLARSSL_ERR_SSL_BAD_HS_NEW_SESSION_TICKET );
@ -2705,7 +2704,7 @@ static int ssl_parse_new_session_ticket( ssl_context *ssl )
return( POLARSSL_ERR_SSL_MALLOC_FAILED );
}
memcpy( ticket, ssl->in_msg + 10, ticket_len );
memcpy( ticket, msg + 6, ticket_len );
ssl->session_negotiate->ticket = ticket;
ssl->session_negotiate->ticket_len = ticket_len;