/*
* Copyright (C) 1997-2000 Matt Newman <[email protected]>
*
* $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tlsInt.h,v 1.3 2000/05/04 20:21:06 aborr Exp $
*
* TLS (aka SSL) Channel - can be layered on any bi-directional
* Tcl_Channel (Note: Requires Trf Core Patch)
*
* This was built from scratch based upon observation of OpenSSL 0.9.2B
*
* Addition credit is due for Andreas Kupries ([email protected]), for
* providing the Tcl_ReplaceChannel mechanism and working closely with me
* to enhance it to support full fileevent semantics.
*
* Also work done by the follow people provided the impetus to do this "right":-
* tclSSL (Colin McCormack, Shared Technology)
* SSLtcl (Peter Antman)
*
*/
#ifndef _TSLINT_H
#define _TLSINT_H
#include "tls.h"
#include <errno.h>
#ifdef NO_PATENTS
#define NO_IDEA
#define NO_RC2
#define NO_RC4
#define NO_RC5
#define NO_RSA
#define NO_SSL2
#endif
#ifdef BSAFE
#include <ssl.h>
#else
#include <openssl/ssl.h>
#endif
#ifdef TCL_STORAGE_CLASS
# undef TCL_STORAGE_CLASS
#endif
#ifdef BUILD_tls
# define TCL_STORAGE_CLASS DLLEXPORT
#else
# define TCL_STORAGE_CLASS DLLIMPORT
#endif
#ifndef ECONNABORTED
#define ECONNABORTED 130 /* Software caused connection abort */
#endif
#ifndef ECONNRESET
#define ECONNRESET 131 /* Connection reset by peer */
#endif
#ifdef DEBUG
#define dprintf fprintf
#else
#define dprintf if (0) fprintf
#endif
#define SSL_ERROR(ssl,err) \
((char*)ERR_reason_error_string(SSL_get_error((ssl),(err))))
/*
* OpenSSL BIO Routines
*/
#define BIO_TYPE_TCL (19|0x0400)
/*
* Defines for State.flags
*/
#define TLS_TCL_ASYNC (1<<0) /* non-blocking mode */
#define TLS_TCL_SERVER (1<<1) /* Server-Side */
#define TLS_TCL_INIT (1<<2) /* Initializing connection */
#define TLS_TCL_DEBUG (1<<3) /* Show debug tracing */
#define TLS_TCL_DELAY (5)
/*
* This structure describes the per-instance state
* of an ssl channel.
*
* The SSL processing context is maintained here, in the ClientData
*/
typedef struct State {
Tcl_Channel self; /* this socket channel */
#if TCL_MAJOR_VERSION == 8 && TCL_MINOR_VERSION < 2
Tcl_Channel parent; /* underlying channel */
#endif
Tcl_TimerToken timer;
int flags; /* currently only CHANNEL_ASYNC */
int watchMask; /* current WatchProc mask */
int mode; /* current mode of parent channel */
Tcl_Interp *interp; /* interpreter in which this resides */
Tcl_Obj *callback; /* script called for tracing, verifying and errors */
int vflags; /* verify flags */
SSL *ssl; /* Struct for SSL processing */
SSL_CTX *ctx; /* SSL Context */
BIO *bio; /* Struct for SSL processing */
BIO *p_bio; /* Parent BIO (that is layered on Tcl_Channel) */
char *err;
} State;
/*
* Forward declarations
*/
EXTERN Tcl_ChannelType *Tls_ChannelType _ANSI_ARGS_((void));
EXTERN Tcl_Channel Tls_GetParent _ANSI_ARGS_((State *statePtr));
EXTERN Tcl_Obj* Tls_NewX509Obj _ANSI_ARGS_ (( Tcl_Interp *interp, X509 *cert));
EXTERN void Tls_Error _ANSI_ARGS_ ((State *statePtr, char *msg));
EXTERN void Tls_Free _ANSI_ARGS_ ((char *blockPtr));
EXTERN int Tls_WaitForConnect _ANSI_ARGS_(( State *statePtr,
int *errorCodePtr));
EXTERN BIO_METHOD * BIO_s_tcl _ANSI_ARGS_((void));
EXTERN BIO * BIO_new_tcl _ANSI_ARGS_((State* statePtr, int flags));
#endif /* _TLSINT_H */