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Merge I/O contexts into one

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Manuel Pégourié-Gonnard 2014-09-17 11:34:57 +02:00 committed by Paul Bakker
parent f4acfe1808
commit e6bdc4497c
3 changed files with 34 additions and 9 deletions
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1
ChangeLog
View file

@ -7,6 +7,7 @@ Features
API Changes
* net_connect() and net_bind() have a new 'proto' argument to choose
between TCP and UDP, using the macros NET_PROTO_TCP or NET_PROTO_UDP.
* ssl_set_bio() now requires that p_send == p_recv.
= PolarSSL 1.3.9 released 2014-10-20
Security

11
include/polarssl/ssl.h
View file

@ -725,8 +725,7 @@ struct _ssl_context
void *p_rng; /*!< context for the RNG function */
void *p_dbg; /*!< context for the debug function */
void *p_recv; /*!< context for reading operations */
void *p_send; /*!< context for writing operations */
void *p_bio; /*!< context for I/O operations */
void *p_get_cache; /*!< context for cache retrieval */
void *p_set_cache; /*!< context for cache store */
void *p_hw_data; /*!< context for HW acceleration */
@ -1069,9 +1068,13 @@ void ssl_set_dbg( ssl_context *ssl,
*
* \param ssl SSL context
* \param f_recv read callback
* \param p_recv read parameter
* \param p_recv read parameter (must be equal to write parameter)
* \param f_send write callback
* \param p_send write parameter
* \param p_send write parameter (must be equal to read parameter)
*
* \warning It is required that p_recv == p_send. Otherwise, the first
* attempt at sending or receiving will result in a
* POLARSSL_ERR_SSL_BAD_INPUT_DATA error.
*/
void ssl_set_bio( ssl_context *ssl,
int (*f_recv)(void *, unsigned char *, size_t), void *p_recv,

31
library/ssl_tls.c
View file

@ -1842,6 +1842,13 @@ int ssl_fetch_input( ssl_context *ssl, size_t nb_want )
SSL_DEBUG_MSG( 2, ( "=> fetch input" ) );
if( ssl->f_recv == NULL && ssl->f_recv_timeout == NULL )
{
SSL_DEBUG_MSG( 1, ( "Bad usage of ssl_set_bio() "
"or ssl_set_bio_timeout()" ) );
return( POLARSSL_ERR_SSL_BAD_INPUT_DATA );
}
if( nb_want > SSL_BUFFER_LEN - (size_t)( ssl->in_hdr - ssl->in_buf ) )
{
SSL_DEBUG_MSG( 1, ( "requesting more data than fits" ) );
@ -1907,7 +1914,7 @@ int ssl_fetch_input( ssl_context *ssl, size_t nb_want )
}
len = SSL_BUFFER_LEN - ( ssl->in_hdr - ssl->in_buf );
ret = ssl->f_recv( ssl->p_recv, ssl->in_hdr, len );
ret = ssl->f_recv( ssl->p_bio, ssl->in_hdr, len );
SSL_DEBUG_RET( 2, "ssl->f_recv", ret );
@ -1928,7 +1935,7 @@ int ssl_fetch_input( ssl_context *ssl, size_t nb_want )
while( ssl->in_left < nb_want )
{
len = nb_want - ssl->in_left;
ret = ssl->f_recv( ssl->p_recv, ssl->in_hdr + ssl->in_left, len );
ret = ssl->f_recv( ssl->p_bio, ssl->in_hdr + ssl->in_left, len );
SSL_DEBUG_MSG( 2, ( "in_left: %d, nb_want: %d",
ssl->in_left, nb_want ) );
@ -1959,6 +1966,13 @@ int ssl_flush_output( ssl_context *ssl )
SSL_DEBUG_MSG( 2, ( "=> flush output" ) );
if( ssl->f_send == NULL )
{
SSL_DEBUG_MSG( 1, ( "Bad usage of ssl_set_bio() "
"or ssl_set_bio_timeout()" ) );
return( POLARSSL_ERR_SSL_BAD_INPUT_DATA );
}
/* Avoid incrementing counter if data is flushed */
if( ssl->out_left == 0 )
{
@ -1973,7 +1987,7 @@ int ssl_flush_output( ssl_context *ssl )
buf = ssl->out_hdr + ssl_hdr_len( ssl ) +
ssl->out_msglen - ssl->out_left;
ret = ssl->f_send( ssl->p_send, buf, ssl->out_left );
ret = ssl->f_send( ssl->p_bio, buf, ssl->out_left );
SSL_DEBUG_RET( 2, "ssl->f_send", ret );
@ -4299,10 +4313,17 @@ void ssl_set_bio( ssl_context *ssl,
int (*f_recv)(void *, unsigned char *, size_t), void *p_recv,
int (*f_send)(void *, const unsigned char *, size_t), void *p_send )
{
if( p_recv != p_send )
{
ssl->f_recv = NULL;
ssl->f_send = NULL;
ssl->p_bio = NULL;
return;
}
ssl->f_recv = f_recv;
ssl->f_send = f_send;
ssl->p_recv = p_recv;
ssl->p_send = p_send;
ssl->p_bio = p_send;
}
void ssl_set_session_cache( ssl_context *ssl,