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Forbid setting max_frag_len > MAX_CONTENT_LEN

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This commit is contained in:
Manuel Pégourié-Gonnard 2013-07-17 14:33:38 +02:00
parent 30dc7ef3ad
commit 6b4f237f6a
1 changed files with 10 additions and 4 deletions
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14
library/ssl_tls.c
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@ -3119,29 +3119,35 @@ void ssl_set_min_version( ssl_context *ssl, int major, int minor )
int ssl_set_max_frag_len( ssl_context *ssl, unsigned char mfl_code )
{
uint16_t max_frag_len;
switch( mfl_code )
{
case SSL_MAX_FRAG_LEN_512:
ssl->max_frag_len = 512;
max_frag_len = 512;
break;
case SSL_MAX_FRAG_LEN_1024:
ssl->max_frag_len = 1024;
max_frag_len = 1024;
break;
case SSL_MAX_FRAG_LEN_2048:
ssl->max_frag_len = 2048;
max_frag_len = 2048;
break;
case SSL_MAX_FRAG_LEN_4096:
ssl->max_frag_len = 4096;
max_frag_len = 4096;
break;
default:
return( POLARSSL_ERR_SSL_BAD_INPUT_DATA );
}
if( max_frag_len > SSL_MAX_CONTENT_LEN )
return( POLARSSL_ERR_SSL_BAD_INPUT_DATA );
ssl->mfl_code = mfl_code;
ssl->max_frag_len = max_frag_len;
return( 0 );
}