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// -*- C++ -*-
#include "SSL_Asynch_BIO.h"
#if OPENSSL_VERSION_NUMBER > 0x0090581fL && ((defined (ACE_WIN32) && !defined (ACE_HAS_WINCE)) || (defined (ACE_HAS_AIO_CALLS)))
#include "SSL_Asynch_Stream.h"
#include "ace/OS_NS_string.h"
ACE_RCSID (ACE_SSL,
SSL_Asynch_BIO,
"$Id$")
#if (defined (ACE_HAS_VERSIONED_NAMESPACE) && ACE_HAS_VERSIONED_NAMESPACE == 1)
# define ACE_ASYNCH_BIO_WRITE_NAME ACE_PREPROC_CONCATENATE(ACE_VERSIONED_NAMESPACE_NAME, _ACE_Asynch_BIO_write)
# define ACE_ASYNCH_BIO_READ_NAME ACE_PREPROC_CONCATENATE(ACE_VERSIONED_NAMESPACE_NAME, _ACE_Asynch_BIO_read)
# define ACE_ASYNCH_BIO_PUTS_NAME ACE_PREPROC_CONCATENATE(ACE_VERSIONED_NAMESPACE_NAME, _ACE_Asynch_BIO_puts)
# define ACE_ASYNCH_BIO_CTRL_NAME ACE_PREPROC_CONCATENATE(ACE_VERSIONED_NAMESPACE_NAME, _ACE_Asynch_BIO_ctrl)
# define ACE_ASYNCH_BIO_NEW_NAME ACE_PREPROC_CONCATENATE(ACE_VERSIONED_NAMESPACE_NAME, _ACE_Asynch_BIO_new)
# define ACE_ASYNCH_BIO_FREE_NAME ACE_PREPROC_CONCATENATE(ACE_VERSIONED_NAMESPACE_NAME, _ACE_Asynch_BIO_free)
#endif /* ACE_HAS_VERSIONED_NAMESPACE == 1 */
/**
* @name OpenSSL BIO Helper Methods for use with ACE's Asynchronous
* SSL I/O support.
*/
//@{
extern "C"
{
int ACE_ASYNCH_BIO_WRITE_NAME (BIO *pBIO, const char *buf, int len);
int ACE_ASYNCH_BIO_READ_NAME (BIO *pBIO, char *buf, int len);
int ACE_ASYNCH_BIO_PUTS_NAME (BIO *pBIO, const char *str);
long ACE_ASYNCH_BIO_CTRL_NAME (BIO *pBIO, int cmd, long arg1, void *arg2);
int ACE_ASYNCH_BIO_NEW_NAME (BIO *pBIO);
int ACE_ASYNCH_BIO_FREE_NAME (BIO *pBIO);
}
//@}
#define BIO_TYPE_ACE ( 21 | BIO_TYPE_SOURCE_SINK )
static BIO_METHOD methods_ACE =
{
BIO_TYPE_ACE, // BIO_TYPE_PROXY_SERVER,
"ACE_Asynch_BIO",
ACE_ASYNCH_BIO_WRITE_NAME,
ACE_ASYNCH_BIO_READ_NAME,
ACE_ASYNCH_BIO_PUTS_NAME,
NULL, /* ACE_ASYNCH_BIO_GETS_NAME, */
ACE_ASYNCH_BIO_CTRL_NAME,
ACE_ASYNCH_BIO_NEW_NAME,
ACE_ASYNCH_BIO_FREE_NAME,
NULL
};
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
BIO *
ACE_SSL_make_BIO (void * ssl_asynch_stream)
{
BIO * const pBIO = BIO_new (&methods_ACE);
if (pBIO)
BIO_ctrl (pBIO,
BIO_C_SET_FILE_PTR,
0,
ssl_asynch_stream);
return pBIO;
}
/**
* @struct @c ACE_SSL_Asynch_Stream_Accessor
*
* @brief Privileged @c ACE_SSL_Asynch_Stream accessor.
*
* This structure is a @c friend to the @c ACE_SSL_Asynch_Stream
* class so that it can gain access to the protected
* ssl_bio_{read,write}() methods in that class. It is full declared
* in this implementation file to hide its interface from users to
* prevent potential abuse of the friend relationship between it and
* the @c ACE_SSL_Asynch_Stream class.
*/
struct ACE_SSL_Asynch_Stream_Accessor
{
static int read (ACE_SSL_Asynch_Stream * stream,
char * buf,
size_t len,
int & errval)
{
return stream->ssl_bio_read (buf, len, errval);
}
static int write (ACE_SSL_Asynch_Stream * stream,
const char * buf,
size_t len,
int & errval)
{
return stream->ssl_bio_write (buf, len, errval);
}
};
ACE_END_VERSIONED_NAMESPACE_DECL
int
ACE_ASYNCH_BIO_NEW_NAME (BIO * pBIO)
{
pBIO->init = 0; // not initialized
pBIO->num = 0; // still zero ( we can use it )
pBIO->ptr = 0; // will be pointer to ACE_SSL_Asynch_Stream
pBIO->flags = 0; //
return 1;
}
int
ACE_ASYNCH_BIO_FREE_NAME (BIO * pBIO)
{
if (pBIO && pBIO->shutdown)
{
pBIO->ptr = 0;
pBIO->init = 0;
pBIO->num = 0;
pBIO->flags = 0;
return 1;
}
return 0;
}
int
ACE_ASYNCH_BIO_READ_NAME (BIO * pBIO, char * buf, int len)
{
BIO_clear_retry_flags (pBIO);
ACE_SSL_Asynch_Stream * const p_stream =
static_cast<ACE_SSL_Asynch_Stream *> (pBIO->ptr);
if (pBIO->init == 0 || p_stream == 0 || buf == 0 || len <= 0)
return -1;
BIO_clear_retry_flags (pBIO);
int errval = 0;
int retval =
ACE_SSL_Asynch_Stream_Accessor::read (p_stream,
buf,
len,
errval);
if (retval >= 0)
return retval;
if (errval == EINPROGRESS)
BIO_set_retry_read (pBIO);
return -1;
}
int
ACE_ASYNCH_BIO_WRITE_NAME (BIO * pBIO, const char * buf, int len)
{
BIO_clear_retry_flags (pBIO);
ACE_SSL_Asynch_Stream * p_stream =
static_cast<ACE_SSL_Asynch_Stream *> (pBIO->ptr);
if (pBIO->init == 0 || p_stream == 0 || buf == 0 || len <= 0)
return -1;
BIO_clear_retry_flags (pBIO);
int errval = 0;
int retval =
ACE_SSL_Asynch_Stream_Accessor::write (p_stream,
buf,
len,
errval);
if (retval >= 0)
return retval;
if (errval == EINPROGRESS)
BIO_set_retry_write (pBIO);
return -1;
}
long
ACE_ASYNCH_BIO_CTRL_NAME (BIO * pBIO, int cmd, long num, void *ptr)
{
long ret = 1;
switch (cmd)
{
case BIO_C_SET_FILE_PTR:
pBIO->shutdown = static_cast<int> (num);
pBIO->ptr = ptr;
pBIO->init = 1;
break;
case BIO_CTRL_INFO:
ret = 0;
break;
case BIO_CTRL_GET_CLOSE:
ret = pBIO->shutdown;
break;
case BIO_CTRL_SET_CLOSE:
pBIO->shutdown = static_cast<int> (num);
break;
case BIO_CTRL_PENDING:
case BIO_CTRL_WPENDING:
ret = 0;
break;
case BIO_CTRL_DUP:
case BIO_CTRL_FLUSH:
ret = 1;
break;
default:
ret = 0;
break;
}
return ret;
}
int
ACE_ASYNCH_BIO_PUTS_NAME (BIO *pBIO, const char *str)
{
size_t const n = ACE_OS::strlen (str);
return ACE_ASYNCH_BIO_WRITE_NAME (pBIO, str, n);
}
#endif /* OPENSSL_VERSION_NUMBER > 0x0090581fL && (ACE_WIN32 ||
ACE_HAS_AIO_CALLS) */
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