Changes On Branch c61ea12657415690

Changes In Branch bohagan Through [c61ea12657] Excluding Merge-Ins

This is equivalent to a diff from 46ffe75283 to c61ea12657

2024-02-22
17:44
Merge trunk. tlsBIO.c is now fully equal to trunk. check-in: dae8857d72 user: jan.nijtmans tags: bohagan
17:40
Fix [006bd0c74e]: PATCH: BIO_CTRL_PUSH not handled. Also add some changes from androwish: [https://www.androwish.org/home/info/982ebf9d31a60440] check-in: 1b8c76f783 user: jan.nijtmans tags: nijtmans
15:27
Merge trunk check-in: c61ea12657 user: jan.nijtmans tags: bohagan
13:49
A lot of formatting, no change in functionality. check-in: 46ffe75283 user: jan.nijtmans tags: nijtmans
08:03
Merge trunk check-in: d0c262769f user: jan.nijtmans tags: bohagan
07:56
Applied patch to add OpenSSL3 KTLS trivial processing. Description: Patch adds trivial processing for BIO_CTRL_GET_KTLS_SEND and BIO_CTRL_GET_KTLS_RECV control commands to make tcltls working with OpenSSL 3.0. See also: - https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1006587 - https://bugzilla.redhat.com/show_bug.cgi?id=2088363 Source: https://sources.debian.org/src/tcltls/1.7.22-3/debian/patches/openssl3.patch check-in: 0f781794ab user: jan.nijtmans tags: nijtmans

Modified Makefile.in from [413d5be116] to [25417b55a9].

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doc:
	@echo "If you have documentation to create, place the commands to"
	@echo "build the docs in the 'doc:' target.  For example:"
	@echo "        xml2nroff sample.xml > sample.n"
	@echo "        xml2html sample.xml > sample.html"

install: all install-binaries install-libraries

install-binaries: binaries install-lib-binaries install-bin-binaries

#========================================================================
# This rule installs platform-independent files, such as header files.
# The list=...; for p in $$list handles the empty list case x-platform.
#========================================================================







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doc:
	@echo "If you have documentation to create, place the commands to"
	@echo "build the docs in the 'doc:' target.  For example:"
	@echo "        xml2nroff sample.xml > sample.n"
	@echo "        xml2html sample.xml > sample.html"

install: all install-binaries install-libraries install-doc

install-binaries: binaries install-lib-binaries install-bin-binaries

#========================================================================
# This rule installs platform-independent files, such as header files.
# The list=...; for p in $$list handles the empty list case x-platform.
#========================================================================
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# this extension
tls.tcl.h: @srcdir@/library/tls.tcl Makefile
	od -A n -v -t xC < '@srcdir@/library/tls.tcl' > tls.tcl.h.new.1
	sed 's@[^0-9A-Fa-f]@@g;s@..@0x&, @g' < tls.tcl.h.new.1 > tls.tcl.h.new.2
	rm -f tls.tcl.h.new.1
	mv tls.tcl.h.new.2 @srcdir@/generic/tls.tcl.h

# Create default DH parameters
dh_params.h: @srcdir@/gen_dh_params Makefile
	sh @srcdir@/gen_dh_params @GEN_DH_PARAMS_ARGS@ > dh_params.h.new
	mv dh_params.h.new dh_params.h

tls.o:	dh_params.h

$(srcdir)/manifest.uuid:
	printf "git-" >$(srcdir)/manifest.uuid
	(cd $(srcdir); git rev-parse HEAD >>$(srcdir)/manifest.uuid || \
	    (printf "svn-r" >$(srcdir)/manifest.uuid ; \
	    svn info --show-item last-changed-revision >>$(srcdir)/manifest.uuid) || \
	    printf "unknown" >$(srcdir)/manifest.uuid)








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# this extension
tls.tcl.h: @srcdir@/library/tls.tcl Makefile
	od -A n -v -t xC < '@srcdir@/library/tls.tcl' > tls.tcl.h.new.1
	sed 's@[^0-9A-Fa-f]@@g;s@..@0x&, @g' < tls.tcl.h.new.1 > tls.tcl.h.new.2
	rm -f tls.tcl.h.new.1
	mv tls.tcl.h.new.2 @srcdir@/generic/tls.tcl.h








$(srcdir)/manifest.uuid:
	printf "git-" >$(srcdir)/manifest.uuid
	(cd $(srcdir); git rev-parse HEAD >>$(srcdir)/manifest.uuid || \
	    (printf "svn-r" >$(srcdir)/manifest.uuid ; \
	    svn info --show-item last-changed-revision >>$(srcdir)/manifest.uuid) || \
	    printf "unknown" >$(srcdir)/manifest.uuid)

Modified README.txt from [3dc72eec51] to [ddcf2ab361].


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TclTLS 1.7.22













==========





Release Date: Mon Oct 12 15:40:16 CDT 2020



https://tcltls.rkeene.org/















































































Original TLS Copyright (C) 1997-2000 Matt Newman <[email protected]>
TLS 1.4.1    Copyright (C) 2000 Ajuba Solutions
TLS 1.6      Copyright (C) 2008 ActiveState Software Inc.
TLS 1.7      Copyright (C) 2016 Matt Newman, Ajuba Solutions, ActiveState
                                Software Inc, Roy Keene <[email protected]>

TLS (aka SSL) Channel - can be layered on any bi-directional Tcl_Channel.

Both client and server-side sockets are possible, and this code should work
on any platform as it uses a generic mechanism for layering on SSL and Tcl.

Full filevent sematics should also be intact - see tests directory for
blocking and non-blocking examples.

The current release is TLS 1.6, with binaries built against OpenSSL 0.9.8g.
For best security and function, always compile from source with the latest
official release of OpenSSL (http://www.openssl.org/).

TLS 1.7 and newer require Tcl 8.4.0+, older versions may be used if older
versions of Tcl need to be used.

TclTLS requires OpenSSL or LibreSSL in order to be compiled and function.

Non-exclusive credits for TLS are:
   Original work: Matt Newman @ Novadigm
   Updates: Jeff Hobbs @ ActiveState
   Tcl Channel mechanism: Andreas Kupries
   Impetus/Related work: tclSSL (Colin McCormack, Shared Technology)
                         SSLtcl (Peter Antman)




This code is licensed under the same terms as the Tcl Core.
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Tool Command Language (TCL) Transport Layer Security (TLS) Extension

Intro
=====

This package provides an extension which implements Secure Socket Layer (SSL)
and Transport Layer Security (TLS) over Transmission Control Protocol (TCP)
network communication channels. It utilizes either the OpenSSL or LibreSSL
software library.

Version 2.0 also provides a cryptography library providing TCL scripts access
to the crypto capabilities of the OpenSSL library.


Description
===========

This extension works by creating a layered TCL Channel on top of an existing
bi-directional channel created by the TLS socket command. All existing socket
functionality is supported, in addition to several new options. Both client
and server modes are supported.


Documentation
=============

See the doc directory for the full usage documentation.


Compatibility
=============

This package requires TCL 8.5 or later.

This package is compatible with:
- OpenSSL v1.1.1 or later. See (http://www.openssl.org/
- LibreSSL (TBD version)


Installation
============

This package uses the Tcl Extension Architecture (TEA) to build and install on
any supported Unix, Mac, or MS Windows system. Either the OpenSSL or LibreSSL
software libraries must be built and available prior to building TCL TLS.

UNIX and Linux
--------------

The standard TEA config, make and install process is supported.

	$ cd tcltls
	$ ./configure --enable-64bit --enable-deterministic --with-builtin-dh-params-size=2048
	$ make
	$ make test
	$ make install

The supported configure options include all of the standard TEA configure script
options, plus:

  --disable-tls1          disable TLS1 protocol
  --disable-tls1_1        disable TLS1.1 protocol
  --disable-tls1_2        disable TLS1.2 protocol
  --disable-tls1_3        disable TLS1.3 protocol
  --enable-deterministic  enable deterministic DH parameters
  --enable-ssl-fastpath   enable using the underlying file descriptor for talking directly to the SSL library
  --enable-hardening      enable hardening attempts
  --enable-static-ssl     enable static linking to the SSL library
  --with-builtin-dh-params-size=<bits>	specify the size of the built-in, precomputed, DH params

If either TCL or OpenSSL are installed in non-standard locations, the following
configure options are available. For all options, see ./configure --help.

  --with-tcl=<dir>			path to where tclCondig.sh file resides
  --with-tclinclude=<dir>		directory containing the public Tcl header files
  --with-openssl-dir=<dir>		path to root directory of OpenSSL or LibreSSL installation
  --with-openssl-includedir=<dir>	path to include directory of OpenSSL or LibreSSL installation
  --with-openssl-libdir=<dir>		path to lib directory of OpenSSL or LibreSSL installation
  --with-openssl-pkgconfig=<dir>	path to root directory of OpenSSL or LibreSSL pkgconfigdir


MacOS
-----

The standard TEA installation process is supported. Use the --with-tcl option
to set the TCL path if the ActiveState or other non-Apple version of TCL is to
be used.

	$ cd tcltls
	$ ./configure --with-tcl=/Library/Frameworks/Tcl.framework/
	$ make
	$ make test
	$ make install


Windows
-------

If installing with MinGW, use the TEA build process. If using MS Visual C
(MSVC), see the win/README.txt file for the installation instructions.


Copyrights
==========

Original TLS Copyright (C) 1997-2000 Matt Newman <[email protected]>
TLS 1.4.1    Copyright (C) 2000 Ajuba Solutions
TLS 1.6      Copyright (C) 2008 ActiveState Software Inc.
TLS 1.7      Copyright (C) 2016 Matt Newman, Ajuba Solutions, ActiveState
                                Software Inc, Roy Keene <[email protected]>
TLS 1.9-2.0  Copyright (C) 2023 Brian O'Hagan




Acknowledgments


===============









Non-exclusive credits for TLS are:
   Original work: Matt Newman @ Novadigm
   Updates: Jeff Hobbs @ ActiveState
   Tcl Channel mechanism: Andreas Kupries
   Impetus/Related work: tclSSL (Colin McCormack, Shared Technology)
                         SSLtcl (Peter Antman)

License
=======

This code is licensed under the same terms as the Tcl Core.

Added acinclude.m4 version [7f4a09fb4a].

Added doc/tls.html version [65948dd927].

Modified generic/tls.c from [0d8631d8e5] to [b894390529].

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 *	tclSSL (Colin McCormack, Shared Technology)
 *	SSLtcl (Peter Antman)
 *
 */

#include "tlsInt.h"
#include "tclOpts.h"

#include <stdlib.h>



/* Min OpenSSL version */
#if OPENSSL_VERSION_NUMBER < 0x10101000L
#error "Only OpenSSL v1.1.1 or later is supported"
#endif

/*
 * External functions
 */

/*
 * Forward declarations
 */

#define F2N(key, dsp) \
	(((key) == NULL) ? (char *)NULL : \
		Tcl_TranslateFileName(interp, (key), (dsp)))
#define REASON()	ERR_reason_error_string(ERR_get_error())

static void	InfoCallback(const SSL *ssl, int where, int ret);

static Tcl_ObjCmdProc CiphersObjCmd;
static Tcl_ObjCmdProc HandshakeObjCmd;
static Tcl_ObjCmdProc ImportObjCmd;
static Tcl_ObjCmdProc StatusObjCmd;
static Tcl_ObjCmdProc VersionObjCmd;
static Tcl_ObjCmdProc MiscObjCmd;
static Tcl_ObjCmdProc UnimportObjCmd;

static SSL_CTX *CTX_Init(State *statePtr, int isServer, int proto, char *key,
		char *certfile, unsigned char *key_asn1, unsigned char *cert_asn1,
		int key_asn1_len, int cert_asn1_len, char *CAdir, char *CAfile,
		char *ciphers, char *DHparams);

static int	TlsLibInit(int uninitialize);

#define TLS_PROTO_SSL2		0x01
#define TLS_PROTO_SSL3		0x02
#define TLS_PROTO_TLS1		0x04
#define TLS_PROTO_TLS1_1	0x08
#define TLS_PROTO_TLS1_2	0x10
#define TLS_PROTO_TLS1_3	0x20
#define ENABLED(flag, mask)	(((flag) & (mask)) == (mask))

/*
 * Static data structures
 */

#ifndef OPENSSL_NO_DH
#include "dh_params.h"
#endif

/*
 * We lose the tcl password callback when we use the RSA BSAFE SSL-C 1.1.2
 * libraries instead of the current OpenSSL libraries.
 */

#ifdef BSAFE
#define PRE_OPENSSL_0_9_4 1
#endif

/*
 * Pre OpenSSL 0.9.4 Compat
 */

#ifndef STACK_OF
#define STACK_OF(x)			STACK
#define sk_SSL_CIPHER_num(sk)		sk_num((sk))
#define sk_SSL_CIPHER_value( sk, index)	(SSL_CIPHER*)sk_value((sk), (index))
#endif

/*
 * Thread-Safe TLS Code
 */

#ifdef TCL_THREADS
#define OPENSSL_THREAD_DEFINES
#include <openssl/opensslconf.h>

#ifdef OPENSSL_THREADS
#include <openssl/crypto.h>


/*
 * Threaded operation requires locking callbacks
 * Based from /crypto/cryptlib.c of OpenSSL and NSOpenSSL.
 */

static Tcl_Mutex *locks = NULL;
static int locksCount = 0;
static Tcl_Mutex init_mx;

void CryptoThreadLockCallback(
    int mode,
    int n,
    TCL_UNUSED(const char *),
    TCL_UNUSED(int))
{
	if (mode & CRYPTO_LOCK) {
		/* This debugging is turned off by default -- it's too noisy. */
		/* dprintf("Called to lock (n=%i of %i)", n, locksCount); */
		Tcl_MutexLock(&locks[n]);
	} else {
		/* dprintf("Called to unlock (n=%i of %i)", n, locksCount); */
		Tcl_MutexUnlock(&locks[n]);
	}

	/* dprintf("Returning"); */

	return;
}

unsigned long CryptoThreadIdCallback(void) {
	unsigned long ret;

	dprintf("Called");

	ret = (unsigned long) Tcl_GetCurrentThread();

	dprintf("Returning %lu", ret);

	return(ret);
}
#endif /* OPENSSL_THREADS */
#endif /* TCL_THREADS */

























































/*
 *-------------------------------------------------------------------
 *
 * InfoCallback --
 *
 *	Monitors SSL connection process
 *
 * Results:
 *	None
 *
 * Side effects:
 *	Calls callback (if defined)
 *
 *-------------------------------------------------------------------
 */
static void
InfoCallback(const SSL *ssl, int where, int ret)
{
    State *statePtr = (State*)SSL_get_app_data((SSL *)ssl);

    Tcl_Obj *cmdPtr;
    const char *major, *minor;

    dprintf("Called");

    if (statePtr->callback == (Tcl_Obj*)NULL)
	return;

    cmdPtr = Tcl_DuplicateObj(statePtr->callback);

#if 0
    if (where & SSL_CB_ALERT) {
	sev = SSL_alert_type_string_long(ret);
	if (strcmp( sev, "fatal")==0) {	/* Map to error */
	    Tls_Error(statePtr, SSL_ERROR(ssl, 0));
	    return;
	}
    }
#endif
    if (where & SSL_CB_HANDSHAKE_START) {
	major = "handshake";
	minor = "start";
    } else if (where & SSL_CB_HANDSHAKE_DONE) {
	major = "handshake";
	minor = "done";
    } else {
	if (where & SSL_CB_ALERT)		major = "alert";
	else if (where & SSL_ST_CONNECT)	major = "connect";
	else if (where & SSL_ST_ACCEPT)		major = "accept";
	else					major = "unknown";

	if (where & SSL_CB_READ)		minor = "read";
	else if (where & SSL_CB_WRITE)		minor = "write";
	else if (where & SSL_CB_LOOP)		minor = "loop";
	else if (where & SSL_CB_EXIT)		minor = "exit";
	else					minor = "unknown";
    }

    Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
	    Tcl_NewStringObj( "info", -1));

    Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
	    Tcl_NewStringObj( Tcl_GetChannelName(statePtr->self), -1) );

    Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
	    Tcl_NewStringObj( major, -1) );

    Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
	    Tcl_NewStringObj( minor, -1) );

    if (where & (SSL_CB_LOOP|SSL_CB_EXIT)) {
	Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
	    Tcl_NewStringObj( SSL_state_string_long(ssl), -1) );
    } else if (where & SSL_CB_ALERT) {
	const char *cp = (char *) SSL_alert_desc_string_long(ret);

	Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
	    Tcl_NewStringObj( cp, -1) );
    } else {
	Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
	    Tcl_NewStringObj( SSL_state_string_long(ssl), -1) );

    }


























    Tcl_Preserve( (ClientData) statePtr->interp);





    Tcl_Preserve( (ClientData) statePtr);






























    Tcl_IncrRefCount( cmdPtr);



























    (void) Tcl_EvalObjEx(statePtr->interp, cmdPtr, TCL_EVAL_GLOBAL);


    Tcl_DecrRefCount( cmdPtr);







    Tcl_Release( (ClientData) statePtr);

    Tcl_Release( (ClientData) statePtr->interp);












}


/*
 *-------------------------------------------------------------------
 *
 * VerifyCallback --
 *
 *	Monitors SSL certificate validation process.

 *	This is called whenever a certificate is inspected


 *	or decided invalid.







 *



 * Results:
 *	A callback bound to the socket may return one of:
 *	    0			- the certificate is deemed invalid

 *	    1			- the certificate is deemed valid
 *	    empty string	- no change to certificate validation
 *
 * Side effects:
 *	The err field of the currently operative State is set
 *	  to a string describing the SSL negotiation failure reason
 *
 *-------------------------------------------------------------------
 */
static int
VerifyCallback(int ok, X509_STORE_CTX *ctx)
{
    Tcl_Obj *cmdPtr, *result;
    char *errStr, *string;
    Tcl_Size length;
    SSL   *ssl		= (SSL*)X509_STORE_CTX_get_ex_data(ctx, SSL_get_ex_data_X509_STORE_CTX_idx());
    X509  *cert		= X509_STORE_CTX_get_current_cert(ctx);
    State *statePtr	= (State*)SSL_get_app_data(ssl);

    int depth		= X509_STORE_CTX_get_error_depth(ctx);
    int err		= X509_STORE_CTX_get_error(ctx);


    dprintf("Verify: %d", ok);

    if (!ok) {
	errStr = (char *)X509_verify_cert_error_string(err);
    } else {
	errStr = (char *)0;
    }

    if (statePtr->callback == NULL) {
	if (statePtr->vflags & SSL_VERIFY_FAIL_IF_NO_PEER_CERT) {
	    return ok;
	} else {
	    return 1;
	}


    }
    cmdPtr = Tcl_DuplicateObj(statePtr->callback);

    Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
	    Tcl_NewStringObj( "verify", -1));

    Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
	    Tcl_NewStringObj( Tcl_GetChannelName(statePtr->self), -1) );

    Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
	    Tcl_NewIntObj( depth) );

    Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
	    Tls_NewX509Obj( statePtr->interp, cert) );

    Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
	    Tcl_NewIntObj( ok) );

    Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
	    Tcl_NewStringObj( errStr ? errStr : "", -1) );

    Tcl_Preserve( (ClientData) statePtr->interp);
    Tcl_Preserve( (ClientData) statePtr);

    statePtr->flags |= TLS_TCL_CALLBACK;

    Tcl_IncrRefCount( cmdPtr);
    if (Tcl_EvalObjEx(statePtr->interp, cmdPtr, TCL_EVAL_GLOBAL) != TCL_OK) {
	/* It got an error - reject the certificate.		*/
	Tcl_BackgroundError( statePtr->interp);
	ok = 0;
    } else {
	result = Tcl_GetObjResult(statePtr->interp);
	string = Tcl_GetStringFromObj(result, &length);
	/* An empty result leaves verification unchanged.	*/
	if (string != NULL && length > 0) {
	    if (Tcl_GetIntFromObj(statePtr->interp, result, &ok) != TCL_OK) {
		Tcl_BackgroundError(statePtr->interp);
		ok = 0;
	    }
	}
    }



    Tcl_DecrRefCount( cmdPtr);

    statePtr->flags &= ~(TLS_TCL_CALLBACK);

    Tcl_Release( (ClientData) statePtr);
    Tcl_Release( (ClientData) statePtr->interp);


    return(ok);	/* By default, leave verification unchanged.	*/
}

/*
 *-------------------------------------------------------------------
 *
 * Tls_Error --
 *
 *	Calls callback with $fd and $msg - so the callback can decide
 *	what to do with errors.
 *
 * Side effects:
 *	The err field of the currently operative State is set
 *	  to a string describing the SSL negotiation failure reason

 *-------------------------------------------------------------------
 */
void
Tls_Error(State *statePtr, char *msg)
{

    Tcl_Obj *cmdPtr;



    dprintf("Called");

    if (msg && *msg) {
	Tcl_SetErrorCode(statePtr->interp, "SSL", msg, (char *)NULL);
    } else {
	msg = Tcl_GetString(Tcl_GetObjResult(statePtr->interp));
    }
    statePtr->err = msg;

    if (statePtr->callback == (Tcl_Obj*)NULL) {
	char buf[BUFSIZ];
	sprintf(buf, "SSL channel \"%s\": error: %s",
	    Tcl_GetChannelName(statePtr->self), msg);
	Tcl_SetResult( statePtr->interp, buf, TCL_VOLATILE);
	Tcl_BackgroundError( statePtr->interp);
	return;
    }

    cmdPtr = Tcl_DuplicateObj(statePtr->callback);

    Tcl_ListObjAppendElement(statePtr->interp, cmdPtr,
	    Tcl_NewStringObj("error", -1));




    Tcl_ListObjAppendElement(statePtr->interp, cmdPtr,
	    Tcl_NewStringObj(Tcl_GetChannelName(statePtr->self), -1));





    Tcl_ListObjAppendElement(statePtr->interp, cmdPtr,
	    Tcl_NewStringObj(msg, -1));

    Tcl_Preserve((ClientData) statePtr->interp);
    Tcl_Preserve((ClientData) statePtr);


    Tcl_IncrRefCount(cmdPtr);
    if (Tcl_EvalObjEx(statePtr->interp, cmdPtr, TCL_EVAL_GLOBAL) != TCL_OK) {
	Tcl_BackgroundError(statePtr->interp);
    }
    Tcl_DecrRefCount(cmdPtr);

    Tcl_Release((ClientData) statePtr);















    Tcl_Release((ClientData) statePtr->interp);







}

/*
 *-------------------------------------------------------------------
 *
 * PasswordCallback --
 *
 *	Called when a password is needed to unpack RSA and PEM keys.
 *	Evals any bound password script and returns the result as
 *	the password string.










 *-------------------------------------------------------------------
 */
#ifdef PRE_OPENSSL_0_9_4
/*
 * No way to handle user-data therefore no way without a global
 * variable to access the Tcl interpreter.
*/
static int
PasswordCallback(
    TCL_UNUSED(char *) /* buf */,
    TCL_UNUSED(int) /* size */,
    TCL_UNUSED(int) /* verify */)
{
    return -1;
}
#else
static int
PasswordCallback(
    char *buf,
    int size,
    TCL_UNUSED(int), /* verify */
    void *udata)
{
    State *statePtr	= (State *) udata;
    Tcl_Interp *interp	= statePtr->interp;
    Tcl_Obj *cmdPtr;
    int result;

    dprintf("Called");


    if (statePtr->password == NULL) {
	if (Tcl_EvalEx(interp, "tls::password", -1, TCL_EVAL_GLOBAL)
		== TCL_OK) {
	    const char *ret = Tcl_GetStringResult(interp);
	    strncpy(buf, ret, (size_t) size);
	    return (int)strlen(ret);
	} else {
	    return -1;
	}
    }


    cmdPtr = Tcl_DuplicateObj(statePtr->password);




    Tcl_Preserve((ClientData) statePtr->interp);
    Tcl_Preserve((ClientData) statePtr);



















































































































































































































































































































































































    Tcl_IncrRefCount(cmdPtr);
    result = Tcl_EvalObjEx(interp, cmdPtr, TCL_EVAL_GLOBAL);


    if (result != TCL_OK) {
	Tcl_BackgroundError(statePtr->interp);




    }
    Tcl_DecrRefCount(cmdPtr);

    Tcl_Release((ClientData) statePtr);
    Tcl_Release((ClientData) statePtr->interp);

    if (result == TCL_OK) {
	const char *ret = Tcl_GetStringResult(interp);
	strncpy(buf, ret, (size_t) size);
	return (int)strlen(ret);
    } else {
	return -1;
    }
}

#endif


/*
 *-------------------------------------------------------------------
 *
 * CiphersObjCmd -- list available ciphers
 *
 *	This procedure is invoked to process the "tls::ciphers" command
 *	to list available ciphers, based upon protocol selected.







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 *	tclSSL (Colin McCormack, Shared Technology)
 *	SSLtcl (Peter Antman)
 *
 */

#include "tlsInt.h"
#include "tclOpts.h"
#include <stdio.h>
#include <stdlib.h>
#include <openssl/rsa.h>
#include <openssl/safestack.h>

/* Min OpenSSL version */
#if OPENSSL_VERSION_NUMBER < 0x10101000L
#error "Only OpenSSL v1.1.1 or later is supported"
#endif

/*
 * External functions
 */

/*
 * Forward declarations
 */

#define F2N(key, dsp) \
	(((key) == NULL) ? (char *)NULL : \
		Tcl_TranslateFileName(interp, (key), (dsp)))












static SSL_CTX *CTX_Init(State *statePtr, int isServer, int proto, char *key,
		char *certfile, unsigned char *key_asn1, unsigned char *cert_asn1,
		int key_asn1_len, int cert_asn1_len, char *CApath, char *CAfile,
		char *ciphers, char *ciphersuites, int level, char *DHparams);

static int	TlsLibInit(int uninitialize);

#define TLS_PROTO_SSL2		0x01
#define TLS_PROTO_SSL3		0x02
#define TLS_PROTO_TLS1		0x04
#define TLS_PROTO_TLS1_1	0x08
#define TLS_PROTO_TLS1_2	0x10
#define TLS_PROTO_TLS1_3	0x20
#define ENABLED(flag, mask)	(((flag) & (mask)) == (mask))




#define SSLKEYLOGFILE		"SSLKEYLOGFILE"























/*
 * Thread-Safe TLS Code
 */

#ifdef TCL_THREADS
#define OPENSSL_THREAD_DEFINES
#include <openssl/opensslconf.h>

#ifdef OPENSSL_THREADS
#include <openssl/crypto.h>
#include <openssl/ssl.h>

/*
 * Threaded operation requires locking callbacks
 * Based from /crypto/cryptlib.c of OpenSSL and NSOpenSSL.
 */

static Tcl_Mutex *locks = NULL;
static int locksCount = 0;
static Tcl_Mutex init_mx;
































#endif /* OPENSSL_THREADS */
#endif /* TCL_THREADS */


/********************/
/* Callbacks        */
/********************/

/*
 *-------------------------------------------------------------------
 *
 * Eval Callback Command --
 *
 *	Eval callback command and catch any errors
 *
 * Results:
 *	0 = Command returned fail or eval returned TCL_ERROR
 *	1 = Command returned success or eval returned TCL_OK
 *
 * Side effects:
 *	Evaluates callback command
 *
 *-------------------------------------------------------------------
 */
static int
EvalCallback(Tcl_Interp *interp, State *statePtr, Tcl_Obj *cmdPtr) {
    int code, ok = 0;

    dprintf("Called");

    Tcl_Preserve((void *) interp);
    Tcl_Preserve((void *) statePtr);

    /* Eval callback with success for ok or return value 1, fail for error or return value 0 */
    Tcl_ResetResult(interp);
    code = Tcl_EvalObjEx(interp, cmdPtr, TCL_EVAL_GLOBAL);
    dprintf("EvalCallback: %d", code);
    if (code == TCL_OK) {
	/* Check result for return value */
	Tcl_Obj *result = Tcl_GetObjResult(interp);
	if (result == NULL || Tcl_GetIntFromObj(interp, result, &ok) != TCL_OK) {
	    ok = 1;
	}
	dprintf("Result: %d", ok);
    } else {
	/* Error - reject the certificate */
	dprintf("Tcl_BackgroundError");
#if (TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION < 6)
	Tcl_BackgroundError(interp);
#else
	Tcl_BackgroundException(interp, code);
#endif
    }

    Tcl_Release((void *) statePtr);
    Tcl_Release((void *) interp);
    return ok;
}

/*
 *-------------------------------------------------------------------
 *
 * InfoCallback --
 *
 *	Monitors SSL connection process
 *
 * Results:
 *	None
 *
 * Side effects:
 *	Calls callback (if defined)
 *
 *-------------------------------------------------------------------
 */
static void
InfoCallback(const SSL *ssl, int where, int ret)
{
    State *statePtr = (State*)SSL_get_app_data((SSL *)ssl);
    Tcl_Interp *interp	= statePtr->interp;
    Tcl_Obj *cmdPtr;
    const char *major, *minor;

    dprintf("Called");

    if (statePtr->callback == (Tcl_Obj*)NULL)
	return;












    if (where & SSL_CB_HANDSHAKE_START) {
	major = "handshake";
	minor = "start";
    } else if (where & SSL_CB_HANDSHAKE_DONE) {
	major = "handshake";
	minor = "done";
    } else {
	if (where & SSL_CB_ALERT)		major = "alert";
	else if (where & SSL_ST_CONNECT)	major = "connect";
	else if (where & SSL_ST_ACCEPT)		major = "accept";
	else					major = "unknown";

	if (where & SSL_CB_READ)		minor = "read";
	else if (where & SSL_CB_WRITE)		minor = "write";
	else if (where & SSL_CB_LOOP)		minor = "loop";
	else if (where & SSL_CB_EXIT)		minor = "exit";
	else					minor = "unknown";
    }



    /* Create command to eval with fn, chan, major, minor, message, and type args */
    cmdPtr = Tcl_DuplicateObj(statePtr->callback);

    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj("info", -1));
    Tcl_ListObjAppendElement(interp, cmdPtr,
	    Tcl_NewStringObj(Tcl_GetChannelName(statePtr->self), -1));

    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj(major, -1));
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj(minor, -1));

    if (where & SSL_CB_ALERT) {
	Tcl_ListObjAppendElement(interp, cmdPtr,


	    Tcl_NewStringObj(SSL_alert_desc_string_long(ret), -1));

	Tcl_ListObjAppendElement(interp, cmdPtr,
	    Tcl_NewStringObj(SSL_alert_type_string_long(ret), -1));
    } else {
	Tcl_ListObjAppendElement(interp, cmdPtr,
	    Tcl_NewStringObj(SSL_state_string_long(ssl), -1));
	Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj("info", -1));
    }

    /* Eval callback command */
    Tcl_IncrRefCount(cmdPtr);
    EvalCallback(interp, statePtr, cmdPtr);
    Tcl_DecrRefCount(cmdPtr);
}

/*
 *-------------------------------------------------------------------
 *
 * MessageCallback --
 *
 *	Monitors SSL protocol messages
 *
 * Results:
 *	None
 *
 * Side effects:
 *	Calls callback (if defined)
 *
 *-------------------------------------------------------------------
 */
#ifndef OPENSSL_NO_SSL_TRACE
static void
MessageCallback(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg) {
    State *statePtr = (State*)arg;
    Tcl_Interp *interp	= statePtr->interp;
    Tcl_Obj *cmdPtr;
    char *ver, *type;
    BIO *bio;
    char buffer[15000];
    buffer[0] = 0;

    dprintf("Called");

    if (statePtr->callback == (Tcl_Obj*)NULL)
	return;

    switch(version) {
#if !defined(NO_SSL3) && !defined(OPENSSL_NO_SSL3)
    case SSL3_VERSION:
	ver = "SSLv3";
	break;
#endif
    case TLS1_VERSION:
	ver = "TLSv1";
	break;
    case TLS1_1_VERSION:
	ver = "TLSv1.1";
	break;
    case TLS1_2_VERSION:
	ver = "TLSv1.2";
	break;
    case TLS1_3_VERSION:
	ver = "TLSv1.3";
	break;
    case 0:
	ver = "none";
	break;
    default:
	ver = "unknown";
	break;
    }

    switch (content_type) {
    case SSL3_RT_HEADER:
	type = "Header";
	break;
    case SSL3_RT_INNER_CONTENT_TYPE:
	type = "Inner Content Type";
	break;
    case SSL3_RT_CHANGE_CIPHER_SPEC:
	type = "Change Cipher";
	break;
    case SSL3_RT_ALERT:
	type = "Alert";
	break;
    case SSL3_RT_HANDSHAKE:
	type = "Handshake";
	break;
    case SSL3_RT_APPLICATION_DATA:
	type = "App Data";
	break;
#if OPENSSL_VERSION_NUMBER < 0x30000000L
    case DTLS1_RT_HEARTBEAT:
	type = "Heartbeat";
	break;
#endif
    default:
	type = "unknown";
    }

    /* Needs compile time option "enable-ssl-trace". */
    if ((bio = BIO_new(BIO_s_mem())) != NULL) {
	int n;
	SSL_trace(write_p, version, content_type, buf, len, ssl, (void *)bio);
	n = BIO_read(bio, buffer, BIO_pending(bio) < 15000 ? BIO_pending(bio) : 14999);
	n = (n<0) ? 0 : n;
	buffer[n] = 0;
	(void)BIO_flush(bio);
	BIO_free(bio);
   }

    /* Create command to eval with fn, chan, direction, version, type, and message args */
    cmdPtr = Tcl_DuplicateObj(statePtr->callback);
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj("message", -1));
    Tcl_ListObjAppendElement(interp, cmdPtr,
	    Tcl_NewStringObj(Tcl_GetChannelName(statePtr->self), -1));
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj(write_p ? "Sent" : "Received", -1));
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj(ver, -1));
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj(type, -1));
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj(buffer, -1));

    /* Eval callback command */
    Tcl_IncrRefCount(cmdPtr);
    EvalCallback(interp, statePtr, cmdPtr);
    Tcl_DecrRefCount(cmdPtr);
}
#endif

/*
 *-------------------------------------------------------------------
 *
 * VerifyCallback --
 *
 *	Monitors SSL certificate validation process. Used to control the
 *	behavior when the SSL_VERIFY_PEER flag is set. This is called
 *	whenever a certificate is inspected or decided invalid. Called for
 *	each certificate in the cert chain.
 *
 * Checks:
 *	certificate chain is checked starting with the deepest nesting level
 *	  (the root CA certificate) and worked upward to the peer's certificate.
 *	All signatures are valid, current time is within first and last validity time.
 *	Check that the certificate is issued by the issuer certificate issuer.
 *	Check the revocation status for each certificate.
 *	Check the validity of the given CRL and the cert revocation status.
 *	Check the policies of all the certificates
 *
 * Args
 *	preverify_ok indicates whether the certificate verification passed (1) or not (0)
 *
 * Results:
 *	A callback bound to the socket may return one of:
 *	    0			- the certificate is deemed invalid, send verification
 *				  failure alert to peer, and terminate handshake.
 *	    1			- the certificate is deemed valid, continue with handshake.
 *	    empty string	- no change to certificate validation
 *
 * Side effects:
 *	The err field of the currently operative State is set
 *	  to a string describing the SSL negotiation failure reason
 *
 *-------------------------------------------------------------------
 */
static int
VerifyCallback(int ok, X509_STORE_CTX *ctx) {

    Tcl_Obj *cmdPtr;


    SSL   *ssl		= (SSL*)X509_STORE_CTX_get_ex_data(ctx, SSL_get_ex_data_X509_STORE_CTX_idx());
    X509  *cert		= X509_STORE_CTX_get_current_cert(ctx);
    State *statePtr	= (State*)SSL_get_app_data(ssl);
    Tcl_Interp *interp	= statePtr->interp;
    int depth		= X509_STORE_CTX_get_error_depth(ctx);
    int err		= X509_STORE_CTX_get_error(ctx);

    dprintf("Called");
    dprintf("VerifyCallback: %d", ok);

    if (statePtr->vcmd == (Tcl_Obj*)NULL) {




	/* Use ok value if verification is required */

	if (statePtr->vflags & SSL_VERIFY_FAIL_IF_NO_PEER_CERT) {
	    return ok;
	} else {
	    return 1;
	}
    } else if (cert == NULL || ssl == NULL) {
	return 0;
    }



    dprintf("VerifyCallback: eval callback");



    /* Create command to eval with fn, chan, depth, cert info list, status, and error args */
    cmdPtr = Tcl_DuplicateObj(statePtr->vcmd);

    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj("verify", -1));
    Tcl_ListObjAppendElement(interp, cmdPtr,
	Tcl_NewStringObj(Tcl_GetChannelName(statePtr->self), -1));
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewIntObj(depth));
    Tcl_ListObjAppendElement(interp, cmdPtr, Tls_NewX509Obj(interp, cert));
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewIntObj(ok));

    Tcl_ListObjAppendElement(interp, cmdPtr,

	Tcl_NewStringObj((char*)X509_verify_cert_error_string(err), -1));





    /* Prevent I/O while callback is in progress */


    /* statePtr->flags |= TLS_TCL_CALLBACK; */












    /* Eval callback command */
    Tcl_IncrRefCount(cmdPtr);
    ok = EvalCallback(interp, statePtr, cmdPtr);
    Tcl_DecrRefCount(cmdPtr);


    dprintf("VerifyCallback: command result = %d", ok);



    /* statePtr->flags &= ~(TLS_TCL_CALLBACK); */
    return(ok);	/* By default, leave verification unchanged. */
}

/*
 *-------------------------------------------------------------------
 *
 * Tls_Error --
 *
 *	Calls callback with list of errors.

 *
 * Side effects:
 *	The err field of the currently operative State is set
 *	  to a string describing the SSL negotiation failure reason
 *
 *-------------------------------------------------------------------
 */
void
Tls_Error(State *statePtr, char *msg) {

    Tcl_Interp *interp	= statePtr->interp;
    Tcl_Obj *cmdPtr, *listPtr;
    unsigned long err;
    statePtr->err = msg;

    dprintf("Called");








    if (statePtr->callback == (Tcl_Obj*)NULL)





	return;

    /* Create command to eval with fn, chan, and message args */
    cmdPtr = Tcl_DuplicateObj(statePtr->callback);
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj("error", -1));
    Tcl_ListObjAppendElement(interp, cmdPtr,
	    Tcl_NewStringObj(Tcl_GetChannelName(statePtr->self), -1));
    if (msg != NULL) {
	Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj(msg, -1));

    } else if ((msg = Tcl_GetStringFromObj(Tcl_GetObjResult(interp), (Tcl_Size *) NULL)) != NULL) {
	Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj(msg, -1));

    } else {
	listPtr = Tcl_NewListObj(0, NULL);
	while ((err = ERR_get_error()) != 0) {
	    Tcl_ListObjAppendElement(interp, listPtr, Tcl_NewStringObj(ERR_reason_error_string(err), -1));
	}
	Tcl_ListObjAppendElement(interp, cmdPtr, listPtr);

    }



    /* Eval callback command */
    Tcl_IncrRefCount(cmdPtr);

    EvalCallback(interp, statePtr, cmdPtr);

    Tcl_DecrRefCount(cmdPtr);
}

/*
 *-------------------------------------------------------------------
 *
 * KeyLogCallback --
 *
 *	Write received key data to log file.
 *
 * Side effects:
 *	none
 *
 *-------------------------------------------------------------------
 */
void KeyLogCallback(const SSL *ssl, const char *line) {
    char *str = getenv(SSLKEYLOGFILE);
    FILE *fd;

    dprintf("Called");

    if (str) {
	fd = fopen(str, "a");
	fprintf(fd, "%s\n",line);
	fclose(fd);
    }
}

/*
 *-------------------------------------------------------------------
 *
 * Password Callback --
 *
 *	Called when a password for a private key loading/storing a PEM
 *	certificate with encryption. Evals callback script and returns
 *	the result as the password string in buf.
 *
 * Results:
 *	None
 *
 * Side effects:
 *	Calls callback (if defined)
 *
 * Returns:
 *	Password size in bytes or -1 for an error.
 *
 *-------------------------------------------------------------------
 */





static int
PasswordCallback(char *buf, int size, int rwflag, void *udata) {














    State *statePtr	= (State *) udata;
    Tcl_Interp *interp	= statePtr->interp;
    Tcl_Obj *cmdPtr;
    int code;

    dprintf("Called");

    /* If no callback, use default callback */
    if (statePtr->password == NULL) {
	if (Tcl_EvalEx(interp, "tls::password", -1, TCL_EVAL_GLOBAL) == TCL_OK) {

	    char *ret = (char *) Tcl_GetStringResult(interp);
	    strncpy(buf, ret, (size_t) size);
	    return (int)strlen(ret);
	} else {
	    return -1;
	}
    }

    /* Create command to eval with fn, rwflag, and size args */
    cmdPtr = Tcl_DuplicateObj(statePtr->password);
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj("password", -1));
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewIntObj(rwflag));
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewIntObj(size));

    Tcl_Preserve((void *) interp);
    Tcl_Preserve((void *) statePtr);

    /* Eval callback command */
    Tcl_IncrRefCount(cmdPtr);
    code = Tcl_EvalObjEx(interp, cmdPtr, TCL_EVAL_GLOBAL);
    if (code != TCL_OK) {
#if (TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION < 6)
	Tcl_BackgroundError(interp);
#else
	Tcl_BackgroundException(interp, code);
#endif
    }
    Tcl_DecrRefCount(cmdPtr);

    Tcl_Release((void *) statePtr);

    /* If successful, pass back password string and truncate if too long */
    if (code == TCL_OK) {
	Tcl_Size len;
	char *ret = (char *) Tcl_GetStringFromObj(Tcl_GetObjResult(interp), &len);
	if (len > (Tcl_Size) size-1) {
	    len = (Tcl_Size) size-1;
	}
	strncpy(buf, ret, (size_t) len);
	buf[len] = '\0';
	Tcl_Release((void *) interp);
	return((int) len);
    }
    Tcl_Release((void *) interp);
    return -1;
}

/*
 *-------------------------------------------------------------------
 *
 * Session Callback for Clients --
 *
 *	Called when a new session is added to the cache. In TLS 1.3
 *	this may be received multiple times after the handshake. For
 *	earlier versions, this will be received during the handshake.
 *	This is the preferred way to obtain a resumable session.
 *
 * Results:
 *	None
 *
 * Side effects:
 *	Calls callback (if defined)
 *
 * Return codes:
 *	0 = error where session will be immediately removed from the internal cache.
 *	1 = success where app retains session in session cache, and must call SSL_SESSION_free() when done.
 *
 *-------------------------------------------------------------------
 */
static int
SessionCallback(SSL *ssl, SSL_SESSION *session) {
    State *statePtr = (State*)SSL_get_app_data((SSL *)ssl);
    Tcl_Interp *interp	= statePtr->interp;
    Tcl_Obj *cmdPtr;
    const unsigned char *ticket;
    const unsigned char *session_id;
    size_t len2;
    unsigned int ulen;

    dprintf("Called");

    if (statePtr->callback == (Tcl_Obj*)NULL) {
	return SSL_TLSEXT_ERR_OK;
    } else if (ssl == NULL) {
	return SSL_TLSEXT_ERR_NOACK;
    }

    /* Create command to eval with fn, chan, session id, session ticket, and lifetime args */
    cmdPtr = Tcl_DuplicateObj(statePtr->callback);
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj("session", -1));
    Tcl_ListObjAppendElement(interp, cmdPtr,
	    Tcl_NewStringObj(Tcl_GetChannelName(statePtr->self), -1));

    /* Session id */
    session_id = SSL_SESSION_get_id(session, &ulen);
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewByteArrayObj(session_id, (Tcl_Size) ulen));

    /* Session ticket */
    SSL_SESSION_get0_ticket(session, &ticket, &len2);
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewByteArrayObj(ticket, (Tcl_Size) len2));

    /* Lifetime - number of seconds */
    Tcl_ListObjAppendElement(interp, cmdPtr,
	Tcl_NewLongObj((long) SSL_SESSION_get_ticket_lifetime_hint(session)));

    /* Eval callback command */
    Tcl_IncrRefCount(cmdPtr);
    EvalCallback(interp, statePtr, cmdPtr);
    Tcl_DecrRefCount(cmdPtr);
    return 0;
}

/*
 *-------------------------------------------------------------------
 *
 * ALPN Callback for Servers and NPN Callback for Clients --
 *
 *	Perform protocol (http/1.1, h2, h3, etc.) selection for the
 *	incoming connection. Called after Hello and server callbacks.
 *	Where 'out' is selected protocol and 'in' is the peer advertised list.
 *
 * Results:
 *	None
 *
 * Side effects:
 *	Calls callback (if defined)
 *
 * Return codes:
 *	SSL_TLSEXT_ERR_OK: ALPN protocol selected. The connection continues.
 *	SSL_TLSEXT_ERR_ALERT_FATAL: There was no overlap between the client's
 *	    supplied list and the server configuration. The connection will be aborted.
 *	SSL_TLSEXT_ERR_NOACK: ALPN protocol not selected, e.g., because no ALPN
 *	    protocols are configured for this connection. The connection continues.
 *
 *-------------------------------------------------------------------
 */
static int
ALPNCallback(SSL *ssl, const unsigned char **out, unsigned char *outlen,
	const unsigned char *in, unsigned int inlen, void *arg) {
    State *statePtr = (State*)arg;
    Tcl_Interp *interp	= statePtr->interp;
    Tcl_Obj *cmdPtr;
    int code, res;

    dprintf("Called");

    if (ssl == NULL || arg == NULL) {
	return SSL_TLSEXT_ERR_NOACK;
    }

    /* Select protocol */
    if (SSL_select_next_proto((unsigned char **) out, outlen, statePtr->protos, statePtr->protos_len,
	in, inlen) == OPENSSL_NPN_NEGOTIATED) {
	/* Match found */
	res = SSL_TLSEXT_ERR_OK;
    } else {
	/* OPENSSL_NPN_NO_OVERLAP = No overlap, so use first item from client protocol list */
	res = SSL_TLSEXT_ERR_NOACK;
    }

    if (statePtr->vcmd == (Tcl_Obj*)NULL) {
	return res;
    }

    /* Create command to eval with fn, chan, depth, cert info list, status, and error args */
    cmdPtr = Tcl_DuplicateObj(statePtr->vcmd);
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj("alpn", -1));
    Tcl_ListObjAppendElement(interp, cmdPtr,
	    Tcl_NewStringObj(Tcl_GetChannelName(statePtr->self), -1));
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj((const char *) *out, -1));
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewBooleanObj(res == SSL_TLSEXT_ERR_OK));

    /* Eval callback command */
    Tcl_IncrRefCount(cmdPtr);
    if ((code = EvalCallback(interp, statePtr, cmdPtr)) > 1) {
	res = SSL_TLSEXT_ERR_NOACK;
    } else if (code == 1) {
	res = SSL_TLSEXT_ERR_OK;
    } else {
	res = SSL_TLSEXT_ERR_ALERT_FATAL;
    }
    Tcl_DecrRefCount(cmdPtr);
    return res;
}

/*
 *-------------------------------------------------------------------
 *
 * Advertise Protocols Callback for Next Protocol Negotiation (NPN) in ServerHello --
 *
 *	called when a TLS server needs a list of supported protocols for Next
 *	Protocol Negotiation.
 *
 * Results:
 *	None
 *
 * Side effects:
 *
 * Return codes:
 *	SSL_TLSEXT_ERR_OK: NPN protocol selected. The connection continues.
 *	SSL_TLSEXT_ERR_NOACK: NPN protocol not selected. The connection continues.
 *
 *-------------------------------------------------------------------
 */
#ifdef USE_NPN
static int
NPNCallback(const SSL *ssl, const unsigned char **out, unsigned int *outlen, void *arg) {
    State *statePtr = (State*)arg;

    dprintf("Called");

    if (ssl == NULL || arg == NULL) {
	return SSL_TLSEXT_ERR_NOACK;
    }

    /* Set protocols list */
    if (statePtr->protos != NULL) {
	*out = statePtr->protos;
	*outlen = statePtr->protos_len;
    } else {
	*out = NULL;
	*outlen = 0;
	return SSL_TLSEXT_ERR_NOACK;
    }
    return SSL_TLSEXT_ERR_OK;
}
#endif

/*
 *-------------------------------------------------------------------
 *
 * SNI Callback for Servers --
 *
 *	Perform server-side SNI hostname selection after receiving SNI extension
 *	in Client Hello. Called after hello callback but before ALPN callback.
 *
 * Results:
 *	None
 *
 * Side effects:
 *	Calls callback (if defined)
 *
 * Return codes:
 *	SSL_TLSEXT_ERR_OK: SNI hostname is accepted. The connection continues.
 *	SSL_TLSEXT_ERR_ALERT_FATAL: SNI hostname is not accepted. The connection
 *	    is aborted. Default for alert is SSL_AD_UNRECOGNIZED_NAME.
 *	SSL_TLSEXT_ERR_ALERT_WARNING: SNI hostname is not accepted, warning alert
 *	    sent (not supported in TLSv1.3). The connection continues.
 *	SSL_TLSEXT_ERR_NOACK: SNI hostname is not accepted and not acknowledged,
 *	    e.g. if SNI has not been configured. The connection continues.
 *
 *-------------------------------------------------------------------
 */
static int
SNICallback(const SSL *ssl, int *alert, void *arg) {
    State *statePtr = (State*)arg;
    Tcl_Interp *interp	= statePtr->interp;
    Tcl_Obj *cmdPtr;
    int code, res;
    const char *servername = NULL;

    dprintf("Called");

    if (ssl == NULL || arg == NULL) {
	return SSL_TLSEXT_ERR_NOACK;
    }

    /* Only works for TLS 1.2 and earlier */
    servername = SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name);
    if (!servername || servername[0] == '\0') {
	return SSL_TLSEXT_ERR_NOACK;
    }

    if (statePtr->vcmd == (Tcl_Obj*)NULL) {
	return SSL_TLSEXT_ERR_OK;
    }

    /* Create command to eval with fn, chan, and server name args */
    cmdPtr = Tcl_DuplicateObj(statePtr->vcmd);
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj("sni", -1));
    Tcl_ListObjAppendElement(interp, cmdPtr,
	    Tcl_NewStringObj(Tcl_GetChannelName(statePtr->self), -1));
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj(servername , -1));

    /* Eval callback command */
    Tcl_IncrRefCount(cmdPtr);
    if ((code = EvalCallback(interp, statePtr, cmdPtr)) > 1) {
	res = SSL_TLSEXT_ERR_ALERT_WARNING;
	*alert = SSL_AD_UNRECOGNIZED_NAME; /* Not supported by TLS 1.3 */
    } else if (code == 1) {
	res = SSL_TLSEXT_ERR_OK;
    } else {
	res = SSL_TLSEXT_ERR_ALERT_FATAL;
	*alert = SSL_AD_UNRECOGNIZED_NAME; /* Not supported by TLS 1.3 */
    }
    Tcl_DecrRefCount(cmdPtr);
    return res;
}

/*
 *-------------------------------------------------------------------
 *
 * ClientHello Handshake Callback for Servers --
 *
 *	Used by server to examine the server name indication (SNI) extension
 *	provided by the client in order to select an appropriate certificate to
 *	present, and make other configuration adjustments relevant to that server
 *	name and its configuration. This includes swapping out the associated
 *	SSL_CTX pointer, modifying the server's list of permitted TLS versions,
 *	changing the server's cipher list in response to the client's cipher list, etc.
 *	Called before SNI and ALPN callbacks.
 *
 * Results:
 *	None
 *
 * Side effects:
 *	Calls callback (if defined)
 *
 * Return codes:
 *	SSL_CLIENT_HELLO_RETRY: suspend the handshake, and the handshake function will return immediately
 *	SSL_CLIENT_HELLO_ERROR: failure, terminate connection. Set alert to error code.
 *	SSL_CLIENT_HELLO_SUCCESS: success
 *
 *-------------------------------------------------------------------
 */
static int
HelloCallback(SSL *ssl, int *alert, void *arg) {
    State *statePtr = (State*)arg;
    Tcl_Interp *interp	= statePtr->interp;
    Tcl_Obj *cmdPtr;
    int code, res;
    const char *servername;
    const unsigned char *p;
    size_t len, remaining;

    dprintf("Called");

    if (statePtr->vcmd == (Tcl_Obj*)NULL) {
	return SSL_CLIENT_HELLO_SUCCESS;
    } else if (ssl == (const SSL *)NULL || arg == (void *)NULL) {
	return SSL_CLIENT_HELLO_ERROR;
    }

    /* Get names */
    if (!SSL_client_hello_get0_ext(ssl, TLSEXT_TYPE_server_name, &p, &remaining) || remaining <= 2) {
	*alert = SSL_R_SSLV3_ALERT_ILLEGAL_PARAMETER;
	return SSL_CLIENT_HELLO_ERROR;
    }

    /* Extract the length of the supplied list of names. */
    len = (*(p++) << 8);
    len += *(p++);
    if (len + 2 != remaining) {
	*alert = SSL_R_SSLV3_ALERT_ILLEGAL_PARAMETER;
	return SSL_CLIENT_HELLO_ERROR;
    }
    remaining = len;

    /* The list in practice only has a single element, so we only consider the first one. */
    if (remaining == 0 || *p++ != TLSEXT_NAMETYPE_host_name) {
	*alert = SSL_R_TLSV1_ALERT_INTERNAL_ERROR;
	return SSL_CLIENT_HELLO_ERROR;
    }
    remaining--;

    /* Now we can finally pull out the byte array with the actual hostname. */
    if (remaining <= 2) {
	*alert = SSL_R_TLSV1_ALERT_INTERNAL_ERROR;
	return SSL_CLIENT_HELLO_ERROR;
    }
    len = (*(p++) << 8);
    len += *(p++);
    if (len + 2 > remaining) {
	*alert = SSL_R_TLSV1_ALERT_INTERNAL_ERROR;
	return SSL_CLIENT_HELLO_ERROR;
    }
    remaining = len;
    servername = (const char *)p;

    /* Create command to eval with fn, chan, and server name args */
    cmdPtr = Tcl_DuplicateObj(statePtr->vcmd);
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj("hello", -1));
    Tcl_ListObjAppendElement(interp, cmdPtr,
	    Tcl_NewStringObj(Tcl_GetChannelName(statePtr->self), -1));
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj(servername, (Tcl_Size) len));

    /* Eval callback command */
    Tcl_IncrRefCount(cmdPtr);
    if ((code = EvalCallback(interp, statePtr, cmdPtr)) > 1) {
	res = SSL_CLIENT_HELLO_RETRY;
	*alert = SSL_R_TLSV1_ALERT_USER_CANCELLED;
    } else if (code == 1) {

	res = SSL_CLIENT_HELLO_SUCCESS;
    } else {
	res = SSL_CLIENT_HELLO_ERROR;
	*alert = SSL_R_TLSV1_ALERT_INTERNAL_ERROR;
    }
    Tcl_DecrRefCount(cmdPtr);









    return res;
}

/********************/
/* Commands         */
/********************/

/*
 *-------------------------------------------------------------------
 *
 * CiphersObjCmd -- list available ciphers
 *
 *	This procedure is invoked to process the "tls::ciphers" command
 *	to list available ciphers, based upon protocol selected.
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{
    Tcl_Obj *objPtr = NULL;
    SSL_CTX *ctx = NULL;
    SSL *ssl = NULL;
    STACK_OF(SSL_CIPHER) *sk;
    const char *cp;
    char buf[BUFSIZ];
    int index, verbose = 0;


    dprintf("Called");

    if ((objc < 2) || (objc > 3)) {
	Tcl_WrongNumArgs(interp, 1, objv, "protocol ?verbose?");
	return TCL_ERROR;
    }
    if (Tcl_GetIndexFromObj(interp, objv[1], protocols, "protocol", 0, &index) != TCL_OK) {
	return TCL_ERROR;
    }
    if ((objc > 2) && Tcl_GetBooleanFromObj(interp, objv[2], &verbose) != TCL_OK) {
	return TCL_ERROR;
    }






    switch ((enum protocol)index) {
    case TLS_SSL2:
	Tcl_AppendResult(interp, protocols[index], ": protocol not supported", (char *)NULL);
	return TCL_ERROR;
    case TLS_SSL3:
#if defined(NO_SSL3) || defined(OPENSSL_NO_SSL3) || defined(OPENSSL_NO_SSL3_METHOD)
	Tcl_AppendResult(interp, "protocol not supported", (char *)NULL);
	return TCL_ERROR;
#else
	ctx = SSL_CTX_new(SSLv3_method()); break;
#endif
    case TLS_TLS1:
#if defined(NO_TLS1) || defined(OPENSSL_NO_TLS1) || defined(OPENSSL_NO_TLS1_METHOD)
	Tcl_AppendResult(interp, "protocol not supported", (char *)NULL);
	return TCL_ERROR;
#else
	ctx = SSL_CTX_new(TLSv1_method()); break;
#endif
    case TLS_TLS1_1:
#if defined(NO_TLS1_1) || defined(OPENSSL_NO_TLS1_1) || defined(OPENSSL_NO_TLS1_1_METHOD)
	Tcl_AppendResult(interp, protocols[index], ": protocol not supported", (char *)NULL);
	return TCL_ERROR;
#else
	ctx = SSL_CTX_new(TLSv1_1_method()); break;
#endif

#if defined(NO_TLS1_2) || defined(OPENSSL_NO_TLS1_2) || defined(OPENSSL_NO_TLS1_2_METHOD)
	Tcl_AppendResult(interp, "protocol not supported", (char *)NULL);
	return TCL_ERROR;
#else
	ctx = SSL_CTX_new(TLSv1_2_method()); break;
#endif

#if defined(NO_TLS1_3) || defined(OPENSSL_NO_TLS1_3) || defined(OPENSSL_NO_TLS1_3_METHOD)
	Tcl_AppendResult(interp, "protocol not supported", (char *)NULL);
	return TCL_ERROR;
#else
	ctx = SSL_CTX_new(TLS_method()); break;
	SSL_CTX_set_min_proto_version (ctx, TLS1_3_VERSION);
	SSL_CTX_set_max_proto_version (ctx, TLS1_3_VERSION);

#endif
    default:

		break;
    }


    if (ctx == NULL) {
	Tcl_AppendResult(interp, REASON(), (char *)NULL);
	return TCL_ERROR;
    }

    ssl = SSL_new(ctx);
    if (ssl == NULL) {
	Tcl_AppendResult(interp, REASON(), (char *)NULL);
	SSL_CTX_free(ctx);
	return TCL_ERROR;
    }
    objPtr = Tcl_NewListObj( 0, NULL);








    if (!verbose) {

	for (index = 0; ; index++) {


	    cp = (char*)SSL_get_cipher_list( ssl, index);


	    if (cp == NULL) break;
	    Tcl_ListObjAppendElement( interp, objPtr,
		Tcl_NewStringObj( cp, -1) );
	}

    } else {


	sk = SSL_get_ciphers(ssl);


	for (index = 0; index < sk_SSL_CIPHER_num(sk); index++) {
	    size_t i;
	    SSL_CIPHER_description( sk_SSL_CIPHER_value( sk, index),
				    buf, sizeof(buf));
	    for (i = strlen(buf) - 1; i ; i--) {
		if (buf[i] == ' ' || buf[i] == '\n' ||
		    buf[i] == '\r' || buf[i] == '\t') {
		    buf[i] = '\0';
		} else {
		    break;

		}
	    }
	    Tcl_ListObjAppendElement( interp, objPtr,
		Tcl_NewStringObj( buf, -1) );



	}
    }
    SSL_free(ssl);
    SSL_CTX_free(ctx);

























































    Tcl_SetObjResult(interp, objPtr);
    return TCL_OK;
}

/*
 *-------------------------------------------------------------------







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{
    Tcl_Obj *objPtr = NULL;
    SSL_CTX *ctx = NULL;
    SSL *ssl = NULL;
    STACK_OF(SSL_CIPHER) *sk;
    const char *cp;
    char buf[BUFSIZ];
    int index, verbose = 0, use_supported = 0;
    const SSL_METHOD *method;

    dprintf("Called");

    if ((objc < 2) || (objc > 4)) {
	Tcl_WrongNumArgs(interp, 1, objv, "protocol ?verbose? ?supported?");
	return TCL_ERROR;
    }
    if (Tcl_GetIndexFromObj(interp, objv[1], protocols, "protocol", 0, &index) != TCL_OK) {
	return TCL_ERROR;
    }
    if ((objc > 2) && Tcl_GetBooleanFromObj(interp, objv[2], &verbose) != TCL_OK) {
	return TCL_ERROR;
    }
    if ((objc > 3) && Tcl_GetBooleanFromObj(interp, objv[3], &use_supported) != TCL_OK) {
	return TCL_ERROR;
    }

    ERR_clear_error();

    switch ((enum protocol)index) {
    case TLS_SSL2:
	Tcl_AppendResult(interp, protocols[index], ": protocol not supported", (char *)NULL);
	return TCL_ERROR;
    case TLS_SSL3:
#if defined(NO_SSL3) || defined(OPENSSL_NO_SSL3) || defined(OPENSSL_NO_SSL3_METHOD)
	Tcl_AppendResult(interp, protocols[index], ": protocol not supported", NULL);
	return TCL_ERROR;
#else
	method = SSLv3_method(); break;
#endif
    case TLS_TLS1:
#if defined(NO_TLS1) || defined(OPENSSL_NO_TLS1) || defined(OPENSSL_NO_TLS1_METHOD)
	Tcl_AppendResult(interp, protocols[index], ": protocol not supported", (char *)NULL);
	return TCL_ERROR;
#else
	method = TLSv1_method(); break;
#endif
    case TLS_TLS1_1:
#if defined(NO_TLS1_1) || defined(OPENSSL_NO_TLS1_1) || defined(OPENSSL_NO_TLS1_1_METHOD)
	Tcl_AppendResult(interp, protocols[index], ": protocol not supported", (char *)NULL);
	return TCL_ERROR;
#else
	method = TLSv1_1_method(); break;
#endif
    case TLS_TLS1_2:
#if defined(NO_TLS1_2) || defined(OPENSSL_NO_TLS1_2) || defined(OPENSSL_NO_TLS1_2_METHOD)
	Tcl_AppendResult(interp, protocols[index], ": protocol not supported", (char *)NULL);
	return TCL_ERROR;
#else
	method = TLSv1_2_method(); break;
#endif
    case TLS_TLS1_3:
#if defined(NO_TLS1_3) || defined(OPENSSL_NO_TLS1_3)
	Tcl_AppendResult(interp, protocols[index], ": protocol not supported", (char *)NULL);
	return TCL_ERROR;
#else
	method = TLS_method();
	SSL_CTX_set_min_proto_version(ctx, TLS1_3_VERSION);
	SSL_CTX_set_max_proto_version(ctx, TLS1_3_VERSION);
	break;
#endif
    default:
	method = TLS_method();
	break;
    }

    ctx = SSL_CTX_new(method);
    if (ctx == NULL) {
	Tcl_AppendResult(interp, GET_ERR_REASON(), (char *)NULL);
	return TCL_ERROR;
    }

    ssl = SSL_new(ctx);
    if (ssl == NULL) {
	Tcl_AppendResult(interp, GET_ERR_REASON(), (char *)NULL);
	SSL_CTX_free(ctx);
	return TCL_ERROR;
    }

    /* Use list and order as would be sent in a ClientHello or all available ciphers */
    if (use_supported) {
	sk = SSL_get1_supported_ciphers(ssl);
    } else {
	sk = SSL_get_ciphers(ssl);
    }

    if (sk != NULL) {
	if (!verbose) {
	    objPtr = Tcl_NewListObj(0, NULL);
	    for (int i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
		const SSL_CIPHER *c = sk_SSL_CIPHER_value(sk, i);
		if (c == NULL) continue;

		/* cipher name or (NONE) */
		cp = SSL_CIPHER_get_name(c);
		if (cp == NULL) break;
		Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(cp, -1));

	    }

	} else {
	    objPtr = Tcl_NewStringObj("",0);
	    for (int i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
		const SSL_CIPHER *c = sk_SSL_CIPHER_value(sk, i);
		if (c == NULL) continue;



		/* textual description of the cipher */
		if (SSL_CIPHER_description(c, buf, sizeof(buf)) != NULL) {
		    Tcl_AppendToObj(objPtr, buf, (Tcl_Size) strlen(buf));



		} else {

		    Tcl_AppendToObj(objPtr, "UNKNOWN\n", 8);
		}
	    }


	}
	if (use_supported) {
	    sk_SSL_CIPHER_free(sk);
	}
    }
    SSL_free(ssl);
    SSL_CTX_free(ctx);

    Tcl_SetObjResult(interp, objPtr);
    return TCL_OK;
}

/*
 *-------------------------------------------------------------------
 *
 * ProtocolsObjCmd -- list available protocols
 *
 *	This procedure is invoked to process the "tls::protocols" command
 *	to list available protocols.
 *
 * Results:
 *	A standard Tcl result list.
 *
 * Side effects:
 *	none
 *
 *-------------------------------------------------------------------
 */

static int
ProtocolsObjCmd(
    TCL_UNUSED(void *),
    Tcl_Interp *interp,
    int objc,
    Tcl_Obj *const objv[]) {
    Tcl_Obj *objPtr;

    dprintf("Called");

    if (objc != 1) {
	Tcl_WrongNumArgs(interp, 1, objv, "");
	return TCL_ERROR;
    }

    ERR_clear_error();

    objPtr = Tcl_NewListObj(0, NULL);

#if !defined(NO_SSL3) && !defined(OPENSSL_NO_SSL3) && !defined(OPENSSL_NO_SSL3_METHOD)
    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(protocols[TLS_SSL3], -1));
#endif
#if !defined(NO_TLS1) && !defined(OPENSSL_NO_TLS1) && !defined(OPENSSL_NO_TLS1_METHOD)
    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(protocols[TLS_TLS1], -1));
#endif
#if !defined(NO_TLS1_1) && !defined(OPENSSL_NO_TLS1_1) && !defined(OPENSSL_NO_TLS1_1_METHOD)
    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(protocols[TLS_TLS1_1], -1));
#endif
#if !defined(NO_TLS1_2) && !defined(OPENSSL_NO_TLS1_2) && !defined(OPENSSL_NO_TLS1_2_METHOD)
    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(protocols[TLS_TLS1_2], -1));
#endif
#if !defined(NO_TLS1_3) && !defined(OPENSSL_NO_TLS1_3)
    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(protocols[TLS_TLS1_3], -1));
#endif

    Tcl_SetObjResult(interp, objPtr);
    return TCL_OK;
}

/*
 *-------------------------------------------------------------------
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    dprintf("Called");

    if (objc != 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "channel");
	return(TCL_ERROR);
    }



    chan = Tcl_GetChannel(interp, Tcl_GetString(objv[1]), NULL);
    if (chan == (Tcl_Channel) NULL) {
	return(TCL_ERROR);
    }

    /* Make sure to operate on the topmost channel */
    chan = Tcl_GetTopChannel(chan);
    if (Tcl_GetChannelType(chan) != Tls_ChannelType()) {
	Tcl_AppendResult(interp, "bad channel \"", Tcl_GetChannelName(chan),
		"\": not a TLS channel", (char *)NULL);

	return(TCL_ERROR);
    }
    statePtr = (State *)Tcl_GetChannelInstanceData(chan);

    dprintf("Calling Tls_WaitForConnect");
    ret = Tls_WaitForConnect(statePtr, &err, 1);
    dprintf("Tls_WaitForConnect returned: %i", ret);

    if (ret < 0 && ((statePtr->flags & TLS_TCL_ASYNC) && (err == EAGAIN))) {
	dprintf("Async set and err = EAGAIN");
	ret = 0;
    } else if (ret < 0) {

	errStr = statePtr->err;
	Tcl_ResetResult(interp);
	Tcl_SetErrno(err);

	if (!errStr || *errStr == 0) {
	    errStr = Tcl_PosixError(interp);
	}

	Tcl_AppendResult(interp, "handshake failed: ", errStr, (char *)NULL);




	dprintf("Returning TCL_ERROR with handshake failed: %s", errStr);
	return(TCL_ERROR);
    } else {
	if (err != 0) {
	    dprintf("Got an error with a completed handshake: err = %i", err);
	}
	ret = 1;







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    dprintf("Called");

    if (objc != 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "channel");
	return(TCL_ERROR);
    }

    ERR_clear_error();

    chan = Tcl_GetChannel(interp, Tcl_GetString(objv[1]), NULL);
    if (chan == (Tcl_Channel) NULL) {
	return(TCL_ERROR);
    }

    /* Make sure to operate on the topmost channel */
    chan = Tcl_GetTopChannel(chan);
    if (Tcl_GetChannelType(chan) != Tls_ChannelType()) {
	Tcl_AppendResult(interp, "bad channel \"", Tcl_GetChannelName(chan),
		"\": not a TLS channel", (char *)NULL);
	Tcl_SetErrorCode(interp, "TLS", "HANDSHAKE", "CHANNEL", "INVALID", (char *)NULL);
	return(TCL_ERROR);
    }
    statePtr = (State *)Tcl_GetChannelInstanceData(chan);

    dprintf("Calling Tls_WaitForConnect");
    ret = Tls_WaitForConnect(statePtr, &err, 1);
    dprintf("Tls_WaitForConnect returned: %i", ret);

    if (ret < 0 && ((statePtr->flags & TLS_TCL_ASYNC) && (err == EAGAIN))) {
	dprintf("Async set and err = EAGAIN");
	ret = 0;
    } else if (ret < 0) {
	long result;
	errStr = statePtr->err;
	Tcl_ResetResult(interp);
	Tcl_SetErrno(err);

	if (!errStr || (*errStr == 0)) {
	    errStr = Tcl_PosixError(interp);
	}

	Tcl_AppendResult(interp, "handshake failed: ", errStr, (char *)NULL);
	if ((result = SSL_get_verify_result(statePtr->ssl)) != X509_V_OK) {
	    Tcl_AppendResult(interp, " due to \"", X509_verify_cert_error_string(result), "\"", (char *)NULL);
	}
	Tcl_SetErrorCode(interp, "TLS", "HANDSHAKE", "FAILED", (char *)NULL);
	dprintf("Returning TCL_ERROR with handshake failed: %s", errStr);
	return(TCL_ERROR);
    } else {
	if (err != 0) {
	    dprintf("Got an error with a completed handshake: err = %i", err);
	}
	ret = 1;
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    Tcl_Obj *const objv[])
{
    Tcl_Channel chan;		/* The channel to set a mode on. */
    State *statePtr;		/* client state for ssl socket */
    SSL_CTX *ctx		= NULL;
    Tcl_Obj *script		= NULL;
    Tcl_Obj *password		= NULL;

    Tcl_DString upperChannelTranslation, upperChannelBlocking, upperChannelEncoding, upperChannelEOFChar;
    int idx;
    Tcl_Size len;
    int flags			= TLS_TCL_INIT;
    int server			= 0;	/* is connection incoming or outgoing? */
    char *keyfile		= NULL;
    char *certfile		= NULL;
    unsigned char *key		= NULL;
    Tcl_Size key_len		= 0;
    unsigned char *cert		= NULL;
    Tcl_Size cert_len		= 0;
    char *ciphers		= NULL;

    char *CAfile		= NULL;
    char *CAdir			= NULL;
    char *DHparams		= NULL;
    char *model			= NULL;
#ifndef OPENSSL_NO_TLSEXT
    char *servername		= NULL;	/* hostname for Server Name Indication */
#endif

    int ssl2 = 0, ssl3 = 0;
    int tls1 = 1, tls1_1 = 1, tls1_2 = 1, tls1_3 = 1;
    int proto = 0;
    int verify = 0, require = 0, request = 1;

    dprintf("Called");

#if defined(NO_TLS1) && defined(NO_TLS1_1) && defined(NO_TLS1_2) && defined(NO_TLS1_3) && !defined(NO_SSL3)
    ssl3 = 1;
#endif
#if defined(NO_TLS1)
    tls1 = 0;
#endif
#if defined(NO_TLS1_1)
    tls1_1 = 0;
#endif
#if defined(NO_TLS1_2)
    tls1_2 = 0;
#endif
#if defined(NO_TLS1_3)
    tls1_3 = 0;
#endif

    if (objc < 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "channel ?options?");
	return TCL_ERROR;
    }



    chan = Tcl_GetChannel(interp, Tcl_GetString(objv[1]), NULL);
    if (chan == (Tcl_Channel) NULL) {
	return TCL_ERROR;
    }

    /*
     * Make sure to operate on the topmost channel
     */
    chan = Tcl_GetTopChannel(chan);

    for (idx = 2; idx < objc; idx++) {
	char *opt = Tcl_GetString(objv[idx]);

	if (opt[0] != '-')
	    break;


	OPTSTR("-cadir", CAdir);
	OPTSTR("-cafile", CAfile);

	OPTSTR("-certfile", certfile);
	OPTSTR("-cipher", ciphers);


	OPTOBJ("-command", script);
	OPTSTR("-dhparams", DHparams);

	OPTSTR("-keyfile", keyfile);
	OPTSTR("-model", model);
	OPTOBJ("-password", password);
	OPTBOOL("-require", require);
	OPTBOOL("-request", request);


	OPTBOOL("-server", server);
#ifndef OPENSSL_NO_TLSEXT
	OPTSTR( "-servername", servername);
#endif

	OPTBOOL("-ssl2", ssl2);
	OPTBOOL("-ssl3", ssl3);
	OPTBOOL("-tls1", tls1);
	OPTBOOL("-tls1.1", tls1_1);
	OPTBOOL("-tls1.2", tls1_2);
	OPTBOOL("-tls1.3", tls1_3)
	OPTBYTE("-cert", cert, cert_len);
	OPTBYTE("-key", key, key_len);

	OPTBAD("option", "-cadir, -cafile, -cert, -certfile, -cipher, -command, -dhparams, -key, -keyfile, -model, -password, -require, -request, -server, -servername, -ssl2, -ssl3, -tls1, -tls1.1, -tls1.2, or tls1.3");

	return TCL_ERROR;
    }
    if (request)	    verify |= SSL_VERIFY_CLIENT_ONCE | SSL_VERIFY_PEER;
    if (request && require) verify |= SSL_VERIFY_FAIL_IF_NO_PEER_CERT;

    if (verify == 0)	verify = SSL_VERIFY_NONE;

    proto |= (ssl2 ? TLS_PROTO_SSL2 : 0);
    proto |= (ssl3 ? TLS_PROTO_SSL3 : 0);
    proto |= (tls1 ? TLS_PROTO_TLS1 : 0);
    proto |= (tls1_1 ? TLS_PROTO_TLS1_1 : 0);
    proto |= (tls1_2 ? TLS_PROTO_TLS1_2 : 0);
    proto |= (tls1_3 ? TLS_PROTO_TLS1_3 : 0);

    /* reset to NULL if blank string provided */
    if (cert && !*cert)		        cert	        = NULL;
    if (key && !*key)		        key	        = NULL;
    if (certfile && !*certfile)         certfile	= NULL;
    if (keyfile && !*keyfile)		keyfile	        = NULL;
    if (ciphers && !*ciphers)	        ciphers	        = NULL;

    if (CAfile && !*CAfile)	        CAfile	        = NULL;
    if (CAdir && !*CAdir)	        CAdir	        = NULL;
    if (DHparams && !*DHparams)	        DHparams        = NULL;

    /* new SSL state */
    statePtr		= (State *) ckalloc((unsigned) sizeof(State));
    memset(statePtr, 0, sizeof(State));

    statePtr->flags	= flags;







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    Tcl_Obj *const objv[])
{
    Tcl_Channel chan;		/* The channel to set a mode on. */
    State *statePtr;		/* client state for ssl socket */
    SSL_CTX *ctx		= NULL;
    Tcl_Obj *script		= NULL;
    Tcl_Obj *password		= NULL;
    Tcl_Obj *vcmd		= NULL;
    Tcl_DString upperChannelTranslation, upperChannelBlocking, upperChannelEncoding, upperChannelEOFChar;
    int idx;
    Tcl_Size len;
    int flags			= TLS_TCL_INIT;
    int server			= 0;	/* is connection incoming or outgoing? */
    char *keyfile		= NULL;
    char *certfile		= NULL;
    unsigned char *key		= NULL;
    Tcl_Size key_len		= 0;
    unsigned char *cert		= NULL;
    Tcl_Size cert_len		= 0;
    char *ciphers		= NULL;
    char *ciphersuites		= NULL;
    char *CAfile		= NULL;
    char *CApath		= NULL;
    char *DHparams		= NULL;
    char *model			= NULL;

    char *servername		= NULL;	/* hostname for Server Name Indication */
    const unsigned char *session_id = NULL;
    Tcl_Obj *alpn		= NULL;
    int ssl2 = 0, ssl3 = 0;
    int tls1 = 1, tls1_1 = 1, tls1_2 = 1, tls1_3 = 1;
    int proto = 0, level = -1;
    int verify = 0, require = 0, request = 1, post_handshake = 0;

    dprintf("Called");




#if defined(NO_TLS1) || defined(OPENSSL_NO_TLS1)
    tls1 = 0;
#endif
#if defined(NO_TLS1_1) || defined(OPENSSL_NO_TLS1_1)
    tls1_1 = 0;
#endif
#if defined(NO_TLS1_2) || defined(OPENSSL_NO_TLS1_2)
    tls1_2 = 0;
#endif
#if defined(NO_TLS1_3) || defined(OPENSSL_NO_TLS1_3)
    tls1_3 = 0;
#endif

    if (objc < 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "channel ?options?");
	return TCL_ERROR;
    }

    ERR_clear_error();

    chan = Tcl_GetChannel(interp, Tcl_GetString(objv[1]), NULL);
    if (chan == (Tcl_Channel) NULL) {
	return TCL_ERROR;
    }

    /*
     * Make sure to operate on the topmost channel
     */
    chan = Tcl_GetTopChannel(chan);

    for (idx = 2; idx < objc; idx++) {
	char *opt = Tcl_GetString(objv[idx]);

	if (opt[0] != '-')
	    break;

	OPTOBJ("-alpn", alpn);
	OPTSTR("-cadir", CApath);
	OPTSTR("-cafile", CAfile);
	OPTBYTE("-cert", cert, cert_len);
	OPTSTR("-certfile", certfile);
	OPTSTR("-cipher", ciphers);
	OPTSTR("-ciphers", ciphers);
	OPTSTR("-ciphersuites", ciphersuites);
	OPTOBJ("-command", script);
	OPTSTR("-dhparams", DHparams);
	OPTBYTE("-key", key, key_len);
	OPTSTR("-keyfile", keyfile);
	OPTSTR("-model", model);
	OPTOBJ("-password", password);
	OPTBOOL("-post_handshake", post_handshake);
	OPTBOOL("-request", request);
	OPTBOOL("-require", require);
	OPTINT("-security_level", level);
	OPTBOOL("-server", server);

	OPTSTR("-servername", servername);

	OPTSTR("-session_id", session_id);
	OPTBOOL("-ssl2", ssl2);
	OPTBOOL("-ssl3", ssl3);
	OPTBOOL("-tls1", tls1);
	OPTBOOL("-tls1.1", tls1_1);
	OPTBOOL("-tls1.2", tls1_2);
	OPTBOOL("-tls1.3", tls1_3);
	OPTOBJ("-validatecommand", vcmd);
	OPTOBJ("-vcmd", vcmd);

	OPTBAD("option", "-alpn, -cadir, -cafile, -cert, -certfile, -cipher, -ciphersuites, -command, -dhparams, -key, -keyfile, -model, -password, -post_handshake, -request, -require, -security_level, -server, -servername, -session_id, -ssl2, -ssl3, -tls1, -tls1.1, -tls1.2, -tls1.3, or -validatecommand");

	return TCL_ERROR;
    }
    if (request)	    verify |= SSL_VERIFY_CLIENT_ONCE | SSL_VERIFY_PEER;
    if (request && require) verify |= SSL_VERIFY_FAIL_IF_NO_PEER_CERT;
    if (request && post_handshake)	verify |= SSL_VERIFY_POST_HANDSHAKE;
    if (verify == 0)	verify = SSL_VERIFY_NONE;

    proto |= (ssl2 ? TLS_PROTO_SSL2 : 0);
    proto |= (ssl3 ? TLS_PROTO_SSL3 : 0);
    proto |= (tls1 ? TLS_PROTO_TLS1 : 0);
    proto |= (tls1_1 ? TLS_PROTO_TLS1_1 : 0);
    proto |= (tls1_2 ? TLS_PROTO_TLS1_2 : 0);
    proto |= (tls1_3 ? TLS_PROTO_TLS1_3 : 0);

    /* reset to NULL if blank string provided */
    if (cert && !*cert)		        cert	        = NULL;
    if (key && !*key)		        key	        = NULL;
    if (certfile && !*certfile)         certfile	= NULL;
    if (keyfile && !*keyfile)		keyfile	        = NULL;
    if (ciphers && !*ciphers)	        ciphers	        = NULL;
    if (ciphersuites && !*ciphersuites) ciphersuites    = NULL;
    if (CAfile && !*CAfile)	        CAfile	        = NULL;
    if (CApath && !*CApath)	        CApath	        = NULL;
    if (DHparams && !*DHparams)	        DHparams        = NULL;

    /* new SSL state */
    statePtr		= (State *) ckalloc((unsigned) sizeof(State));
    memset(statePtr, 0, sizeof(State));

    statePtr->flags	= flags;
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    if (password) {
	(void) Tcl_GetStringFromObj(password, &len);
	if (len) {
	    statePtr->password = password;
	    Tcl_IncrRefCount(statePtr->password);
	}
    }










    if (model != NULL) {
	int mode;
	/* Get the "model" context */
	chan = Tcl_GetChannel(interp, model, &mode);
	if (chan == (Tcl_Channel) NULL) {
	    Tls_Free((void *)statePtr);
	    return TCL_ERROR;
	}

	/*
	 * Make sure to operate on the topmost channel
	 */
	chan = Tcl_GetTopChannel(chan);
	if (Tcl_GetChannelType(chan) != Tls_ChannelType()) {
	    Tcl_AppendResult(interp, "bad channel \"", Tcl_GetChannelName(chan),
		    "\": not a TLS channel", (char *)NULL);

	    Tls_Free((void *)statePtr);
	    return TCL_ERROR;
	}
	ctx = ((State *)Tcl_GetChannelInstanceData(chan))->ctx;
    } else {
	if ((ctx = CTX_Init(statePtr, server, proto, keyfile, certfile, key,
		cert, key_len, cert_len, CAdir, CAfile, ciphers,
		DHparams)) == NULL) {
	    Tls_Free((void *)statePtr);
	    return TCL_ERROR;
	}
    }

    statePtr->ctx = ctx;








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    if (password) {
	(void) Tcl_GetStringFromObj(password, &len);
	if (len) {
	    statePtr->password = password;
	    Tcl_IncrRefCount(statePtr->password);
	}
    }

    /* allocate validate command */
    if (vcmd) {
	(void) Tcl_GetStringFromObj(vcmd, &len);
	if (len) {
	    statePtr->vcmd = vcmd;
	    Tcl_IncrRefCount(statePtr->vcmd);
	}
    }

    if (model != NULL) {
	int mode;
	/* Get the "model" context */
	chan = Tcl_GetChannel(interp, model, &mode);
	if (chan == (Tcl_Channel) NULL) {
	    Tls_Free((void *)statePtr);
	    return TCL_ERROR;
	}

	/*
	 * Make sure to operate on the topmost channel
	 */
	chan = Tcl_GetTopChannel(chan);
	if (Tcl_GetChannelType(chan) != Tls_ChannelType()) {
	    Tcl_AppendResult(interp, "bad channel \"", Tcl_GetChannelName(chan),
		    "\": not a TLS channel", (char *)NULL);
	    Tcl_SetErrorCode(interp, "TLS", "IMPORT", "CHANNEL", "INVALID", (char *)NULL);
	    Tls_Free((void *)statePtr);
	    return TCL_ERROR;
	}
	ctx = ((State *)Tcl_GetChannelInstanceData(chan))->ctx;
    } else {
	if ((ctx = CTX_Init(statePtr, server, proto, keyfile, certfile, key, cert, (int) key_len,

	    (int) cert_len, CApath, CAfile, ciphers, ciphersuites, level, DHparams)) == NULL) {
	    Tls_Free((void *)statePtr);
	    return TCL_ERROR;
	}
    }

    statePtr->ctx = ctx;

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	return TCL_ERROR;
    }

    Tcl_SetChannelOption(interp, statePtr->self, "-translation", Tcl_DStringValue(&upperChannelTranslation));
    Tcl_SetChannelOption(interp, statePtr->self, "-encoding", Tcl_DStringValue(&upperChannelEncoding));
    Tcl_SetChannelOption(interp, statePtr->self, "-eofchar", Tcl_DStringValue(&upperChannelEOFChar));
    Tcl_SetChannelOption(interp, statePtr->self, "-blocking", Tcl_DStringValue(&upperChannelBlocking));





    /*
     * SSL Initialization
     */

    statePtr->ssl = SSL_new(statePtr->ctx);
    if (!statePtr->ssl) {
	/* SSL library error */
	Tcl_AppendResult(interp, "couldn't construct ssl session: ", REASON(), (char *)NULL);

	Tls_Free((void *)statePtr);
	return TCL_ERROR;
    }

#ifndef OPENSSL_NO_TLSEXT
    if (servername) {


	if (!SSL_set_tlsext_host_name(statePtr->ssl, servername) && require) {














































	    Tcl_AppendResult(interp, "setting TLS host name extension failed", (char *)NULL);

	    Tls_Free((void *)statePtr);
	    return TCL_ERROR;
	}

    }
#endif




























    /*
     * SSL Callbacks
     */
    SSL_set_app_data(statePtr->ssl, (void *)statePtr);	/* point back to us */
    SSL_set_verify(statePtr->ssl, verify, VerifyCallback);
    SSL_CTX_set_info_callback(statePtr->ctx, InfoCallback);









    /* Create Tcl_Channel BIO Handler */
    statePtr->p_bio	= BIO_new_tcl(statePtr, BIO_NOCLOSE);
    statePtr->bio	= BIO_new(BIO_f_ssl());

    if (server) {
























	statePtr->flags |= TLS_TCL_SERVER;
	SSL_set_accept_state(statePtr->ssl);
    } else {

















	SSL_set_connect_state(statePtr->ssl);
    }
    SSL_set_bio(statePtr->ssl, statePtr->p_bio, statePtr->p_bio);
    BIO_set_ssl(statePtr->bio, statePtr->ssl, BIO_NOCLOSE);

    /*
     * End of SSL Init







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	return TCL_ERROR;
    }

    Tcl_SetChannelOption(interp, statePtr->self, "-translation", Tcl_DStringValue(&upperChannelTranslation));
    Tcl_SetChannelOption(interp, statePtr->self, "-encoding", Tcl_DStringValue(&upperChannelEncoding));
    Tcl_SetChannelOption(interp, statePtr->self, "-eofchar", Tcl_DStringValue(&upperChannelEOFChar));
    Tcl_SetChannelOption(interp, statePtr->self, "-blocking", Tcl_DStringValue(&upperChannelBlocking));
    Tcl_DStringFree(&upperChannelTranslation);
    Tcl_DStringFree(&upperChannelEncoding);
    Tcl_DStringFree(&upperChannelEOFChar);
    Tcl_DStringFree(&upperChannelBlocking);

    /*
     * SSL Initialization
     */

    statePtr->ssl = SSL_new(statePtr->ctx);
    if (!statePtr->ssl) {
	/* SSL library error */
	Tcl_AppendResult(interp, "couldn't construct ssl session: ", GET_ERR_REASON(), (char *)NULL);
	Tcl_SetErrorCode(interp, "TLS", "IMPORT", "INIT", "FAILED", (char *)NULL);
	Tls_Free((void *)statePtr);
	return TCL_ERROR;
    }

    /* Set host server name */
    if (servername) {
	/* Sets the server name indication (SNI) in ClientHello extension */
	/* Per RFC 6066, hostname is a ASCII encoded string, though RFC 4366 says UTF-8. */
	if (!SSL_set_tlsext_host_name(statePtr->ssl, servername) && require) {
	    Tcl_AppendResult(interp, "Set SNI extension failed: ", GET_ERR_REASON(), (char *)NULL);
	    Tcl_SetErrorCode(interp, "TLS", "IMPORT", "SNI", "FAILED", (char *)NULL);
	    Tls_Free((void *)statePtr);
	    return TCL_ERROR;
	}

	/* Set hostname for peer certificate hostname verification in clients.
	   Don't use SSL_set1_host since it has limitations. */
	if (!SSL_add1_host(statePtr->ssl, servername)) {
	    Tcl_AppendResult(interp, "Set DNS hostname failed: ", GET_ERR_REASON(), (char *)NULL);
	    Tcl_SetErrorCode(interp, "TLS", "IMPORT", "HOSTNAME", "FAILED", (char *)NULL);
	    Tls_Free((void *)statePtr);
	    return TCL_ERROR;
	}
    }

    /* Resume session id */
    if (session_id && strlen(session_id) <= SSL_MAX_SID_CTX_LENGTH) {
	/* SSL_set_session() */
	if (!SSL_SESSION_set1_id_context(SSL_get_session(statePtr->ssl), session_id, (unsigned int) strlen(session_id))) {
	    Tcl_AppendResult(interp, "Resume session failed: ", GET_ERR_REASON(), (char *)NULL);
	    Tcl_SetErrorCode(interp, "TLS", "IMPORT", "SESSION", "FAILED", (char *)NULL);
	    Tls_Free((void *)statePtr);
	    return TCL_ERROR;
	}
    }

    /* Enable Application-Layer Protocol Negotiation. Examples are: http/1.0,
	http/1.1, h2, h3, ftp, imap, pop3, xmpp-client, xmpp-server, mqtt, irc, etc. */
    if (alpn) {
	/* Convert a TCL list into a protocol-list in wire-format */
	unsigned char *protos, *p;
	unsigned int protos_len = 0;
	Tcl_Size cnt, i;
	int j;
	Tcl_Obj **list;

	if (Tcl_ListObjGetElements(interp, alpn, &cnt, &list) != TCL_OK) {
	    Tls_Free((void *)statePtr);
	    return TCL_ERROR;
	}

	/* Determine the memory required for the protocol-list */
	for (i = 0; i < cnt; i++) {
	    Tcl_GetStringFromObj(list[i], &len);
	    if (len > 255) {
		Tcl_AppendResult(interp, "ALPN protocol names too long", (char *)NULL);
		Tcl_SetErrorCode(interp, "TLS", "IMPORT", "ALPN", "FAILED", (char *)NULL);
		Tls_Free((void *)statePtr);
		return TCL_ERROR;
	    }
	    protos_len += 1 + (int) len;
	}

	/* Build the complete protocol-list */
	protos = ckalloc(protos_len);
	/* protocol-lists consist of 8-bit length-prefixed, byte strings */
	for (j = 0, p = protos; j < cnt; j++) {
	    char *str = Tcl_GetStringFromObj(list[j], &len);
	    *p++ = (unsigned char) len;
	    memcpy(p, str, (size_t) len);
	    p += len;
	}

	/* SSL_set_alpn_protos makes a copy of the protocol-list */
	/* Note: This functions reverses the return value convention */
	if (SSL_set_alpn_protos(statePtr->ssl, protos, protos_len)) {
	    Tcl_AppendResult(interp, "Set ALPN protocols failed: ", GET_ERR_REASON(), (char *)NULL);
	    Tcl_SetErrorCode(interp, "TLS", "IMPORT", "ALPN", "FAILED", (char *)NULL);
	    Tls_Free((void *)statePtr);
	    ckfree(protos);
	    return TCL_ERROR;
	}

	/* Store protocols list */
	statePtr->protos = protos;
	statePtr->protos_len = protos_len;
    } else {
	statePtr->protos = NULL;
	statePtr->protos_len = 0;
    }

    /*
     * SSL Callbacks
     */
    SSL_set_app_data(statePtr->ssl, (void *)statePtr);	/* point back to us */
    SSL_set_verify(statePtr->ssl, verify, VerifyCallback);
    SSL_set_info_callback(statePtr->ssl, InfoCallback);

    /* Callback for observing protocol messages */
#ifndef OPENSSL_NO_SSL_TRACE
    /* void SSL_CTX_set_msg_callback_arg(statePtr->ctx, (void *)statePtr);
    void SSL_CTX_set_msg_callback(statePtr->ctx, MessageCallback); */
    SSL_set_msg_callback_arg(statePtr->ssl, (void *)statePtr);
    SSL_set_msg_callback(statePtr->ssl, MessageCallback);
#endif

    /* Create Tcl_Channel BIO Handler */
    statePtr->p_bio	= BIO_new_tcl(statePtr, BIO_NOCLOSE);
    statePtr->bio	= BIO_new(BIO_f_ssl());

    if (server) {
	/* Server callbacks */
	SSL_CTX_set_tlsext_servername_arg(statePtr->ctx, (void *)statePtr);
	SSL_CTX_set_tlsext_servername_callback(statePtr->ctx, SNICallback);
	SSL_CTX_set_client_hello_cb(statePtr->ctx, HelloCallback, (void *)statePtr);
	if (statePtr->protos != NULL) {
	    SSL_CTX_set_alpn_select_cb(statePtr->ctx, ALPNCallback, (void *)statePtr);
#ifdef USE_NPN
	    if (tls1_2 == 0 && tls1_3 == 0) {
		SSL_CTX_set_next_protos_advertised_cb(statePtr->ctx, NPNCallback, (void *)statePtr);
	    }
#endif
	}

	/* Enable server to send cert request after handshake (TLS 1.3 only) */
	/* A write operation must take place for the Certificate Request to be
	   sent to the client, this can be done with SSL_do_handshake(). */
	if (request && post_handshake && tls1_3) {
	    SSL_verify_client_post_handshake(statePtr->ssl);
	}

	/* set automatic curve selection */
	SSL_set_ecdh_auto(statePtr->ssl, 1);

	/* Set server mode */
	statePtr->flags |= TLS_TCL_SERVER;
	SSL_set_accept_state(statePtr->ssl);
    } else {
	/* Client callbacks */
#ifdef USE_NPN
	if (statePtr->protos != NULL && tls1_2 == 0 && tls1_3 == 0) {
	    SSL_CTX_set_next_proto_select_cb(statePtr->ctx, ALPNCallback, (void *)statePtr);
	}
#endif

	/* Session caching */
	SSL_CTX_set_session_cache_mode(statePtr->ctx, SSL_SESS_CACHE_CLIENT | SSL_SESS_CACHE_NO_INTERNAL_STORE);
	SSL_CTX_sess_set_new_cb(statePtr->ctx, SessionCallback);

	/* Enable post handshake Authentication extension. TLS 1.3 only, not http/2. */
	if (request && post_handshake) {
	    SSL_set_post_handshake_auth(statePtr->ssl, 1);
	}

	/* Set client mode */
	SSL_set_connect_state(statePtr->ssl);
    }
    SSL_set_bio(statePtr->ssl, statePtr->p_bio, statePtr->p_bio);
    BIO_set_ssl(statePtr->bio, statePtr->ssl, BIO_NOCLOSE);

    /*
     * End of SSL Init
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     * Make sure to operate on the topmost channel
     */
    chan = Tcl_GetTopChannel(chan);

    if (Tcl_GetChannelType(chan) != Tls_ChannelType()) {
	Tcl_AppendResult(interp, "bad channel \"", Tcl_GetChannelName(chan),
		"\": not a TLS channel", (char *)NULL);

	return TCL_ERROR;
    }

    if (Tcl_UnstackChannel(interp, chan) == TCL_ERROR) {
	return TCL_ERROR;
    }








>







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     * Make sure to operate on the topmost channel
     */
    chan = Tcl_GetTopChannel(chan);

    if (Tcl_GetChannelType(chan) != Tls_ChannelType()) {
	Tcl_AppendResult(interp, "bad channel \"", Tcl_GetChannelName(chan),
		"\": not a TLS channel", (char *)NULL);
	    Tcl_SetErrorCode(interp, "TLS", "UNIMPORT", "CHANNEL", "INVALID", (char *)NULL);
	return TCL_ERROR;
    }

    if (Tcl_UnstackChannel(interp, chan) == TCL_ERROR) {
	return TCL_ERROR;
    }

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 *
 *-------------------------------------------------------------------
 */

static SSL_CTX *
CTX_Init(
    State *statePtr,
    TCL_UNUSED(int) /* isServer */,
    int proto,
    char *keyfile,
    char *certfile,
    unsigned char *key,
    unsigned char *cert,
    int key_len,
    int cert_len,
    char *CAdir,
    char *CAfile,
    char *ciphers,


    char *DHparams)
{
    Tcl_Interp *interp = statePtr->interp;
    SSL_CTX *ctx = NULL;
    Tcl_DString ds;
    Tcl_DString ds1;
    int off = 0;
    int load_private_key;
    const SSL_METHOD *method;

    dprintf("Called");

    if (!proto) {
	Tcl_AppendResult(interp, "no valid protocol selected", (char *)NULL);
	return NULL;
    }

    /* create SSL context */
    if (ENABLED(proto, TLS_PROTO_SSL2)) {
	Tcl_AppendResult(interp, "protocol not supported", (char *)NULL);
	return NULL;
    }
#if defined(NO_SSL3) || defined(OPENSSL_NO_SSL3) || defined(OPENSSL_NO_SSL3_METHOD)
    if (ENABLED(proto, TLS_PROTO_SSL3)) {
	Tcl_AppendResult(interp, "protocol not supported", (char *)NULL);
	return NULL;
    }
#endif
#if defined(NO_TLS1) || defined(OPENSSL_NO_TLS1) || defined(OPENSSL_NO_TLS1_METHOD)
    if (ENABLED(proto, TLS_PROTO_TLS1)) {
	Tcl_AppendResult(interp, "protocol not supported", (char *)NULL);
	return NULL;
    }
#endif
#if defined(NO_TLS1_1) || defined(OPENSSL_NO_TLS1_1) || defined(OPENSSL_NO_TLS1_1_METHOD)
    if (ENABLED(proto, TLS_PROTO_TLS1_1)) {
	Tcl_AppendResult(interp, "protocol not supported", (char *)NULL);
	return NULL;
    }
#endif
#if defined(NO_TLS1_2) || defined(OPENSSL_NO_TLS1_2) || defined(OPENSSL_NO_TLS1_2_METHOD)
    if (ENABLED(proto, TLS_PROTO_TLS1_2)) {
	Tcl_AppendResult(interp, "protocol not supported", (char *)NULL);
	return NULL;
    }
#endif
#if defined(NO_TLS1_3) || defined(OPENSSL_NO_TLS1_3) || defined(OPENSSL_NO_TLS1_3_METHOD)
    if (ENABLED(proto, TLS_PROTO_TLS1_3)) {
	Tcl_AppendResult(interp, "protocol not supported", (char *)NULL);
	return NULL;
    }
#endif






    switch (proto) {
#if !defined(NO_SSL3) && !defined(OPENSSL_NO_SSL3) && !defined(OPENSSL_NO_SSL3_METHOD)
    case TLS_PROTO_SSL3:
	method = SSLv3_method ();
	break;
#endif
#if !defined(NO_TLS1) && !defined(OPENSSL_NO_TLS1) && !defined(OPENSSL_NO_TLS1_METHOD)
    case TLS_PROTO_TLS1:
	method = TLSv1_method ();
	break;
#endif
#if !defined(NO_TLS1_1) && !defined(OPENSSL_NO_TLS1_1) && !defined(OPENSSL_NO_TLS1_1_METHOD)
    case TLS_PROTO_TLS1_1:
	method = TLSv1_1_method ();
	break;
#endif
#if !defined(NO_TLS1_2) && !defined(OPENSSL_NO_TLS1_2) && !defined(OPENSSL_NO_TLS1_2_METHOD)
    case TLS_PROTO_TLS1_2:
	method = TLSv1_2_method ();
	break;
#endif
#if !defined(NO_TLS1_3) && !defined(OPENSSL_NO_TLS1_3) && !defined(OPENSSL_NO_TLS1_3_METHOD)
    case TLS_PROTO_TLS1_3:
	/* Use the generic method and constraint range after context is created */
	method = TLS_method ();
	break;
#endif
    default:
#ifdef HAVE_TLS_METHOD
        method = TLS_method ();
#else
        method = SSLv23_method ();
#endif
#if !defined(NO_SSL3) && !defined(OPENSSL_NO_SSL3) && !defined(OPENSSL_NO_SSL3_METHOD)
	off |= (ENABLED(proto, TLS_PROTO_SSL3)   ? 0 : SSL_OP_NO_SSLv3);
#endif
#if !defined(NO_TLS1) && !defined(OPENSSL_NO_TLS1) && !defined(OPENSSL_NO_TLS1_METHOD)
	off |= (ENABLED(proto, TLS_PROTO_TLS1)   ? 0 : SSL_OP_NO_TLSv1);
#endif
#if !defined(NO_TLS1_1) && !defined(OPENSSL_NO_TLS1_1) && !defined(OPENSSL_NO_TLS1_1_METHOD)
	off |= (ENABLED(proto, TLS_PROTO_TLS1_1) ? 0 : SSL_OP_NO_TLSv1_1);
#endif
#if !defined(NO_TLS1_2) && !defined(OPENSSL_NO_TLS1_2) && !defined(OPENSSL_NO_TLS1_2_METHOD)
	off |= (ENABLED(proto, TLS_PROTO_TLS1_2) ? 0 : SSL_OP_NO_TLSv1_2);
#endif
#if !defined(NO_TLS1_3) && !defined(OPENSSL_NO_TLS1_3) && !defined(OPENSSL_NO_TLS1_3_METHOD)
	off |= (ENABLED(proto, TLS_PROTO_TLS1_3) ? 0 : SSL_OP_NO_TLSv1_3);
#endif
	break;
    }

    ctx = SSL_CTX_new (method);


    if (!ctx) {
	return(NULL);
    }





#if !defined(NO_TLS1_3) && !defined(OPENSSL_NO_TLS1_3)
    if (proto == TLS_PROTO_TLS1_3) {
	SSL_CTX_set_min_proto_version(ctx, TLS1_3_VERSION);
	SSL_CTX_set_max_proto_version(ctx, TLS1_3_VERSION);
    }
#endif






    SSL_CTX_set_app_data(ctx, interp);	/* remember the interpreter */
    SSL_CTX_set_options(ctx, SSL_OP_ALL);	/* all SSL bug workarounds */

    SSL_CTX_set_options(ctx, off);	/* all SSL bug workarounds */
    SSL_CTX_sess_set_cache_size(ctx, 128);

    if (ciphers != NULL)
	SSL_CTX_set_cipher_list(ctx, ciphers);
















    /* set some callbacks */
    SSL_CTX_set_default_passwd_cb(ctx, PasswordCallback);

#ifndef BSAFE
    SSL_CTX_set_default_passwd_cb_userdata(ctx, (void *)statePtr);
#endif

    /* read a Diffie-Hellman parameters file, or use the built-in one */
#ifdef OPENSSL_NO_DH
    if (DHparams != NULL) {
	Tcl_AppendResult(interp,
		"DH parameter support not available", (char *)NULL);
	SSL_CTX_free(ctx);
	return NULL;
    }
#else
    {
	DH* dh;
	if (DHparams != NULL) {
	    BIO *bio;
	    Tcl_DStringInit(&ds);
	    bio = BIO_new_file(F2N(DHparams, &ds), "r");
	    if (!bio) {
		Tcl_DStringFree(&ds);
		Tcl_AppendResult(interp,
		    "Could not find DH parameters file", (char *)NULL);
		SSL_CTX_free(ctx);
		return NULL;
	    }

	    dh = PEM_read_bio_DHparams(bio, NULL, NULL, NULL);
	    BIO_free(bio);
	    Tcl_DStringFree(&ds);
	    if (!dh) {
		Tcl_AppendResult(interp,





		    "Could not read DH parameters from file", (char *)NULL);




		SSL_CTX_free(ctx);
		return NULL;
	    }
	} else {
	    dh = get_dhParams();
	}
	SSL_CTX_set_tmp_dh(ctx, dh);
	DH_free(dh);
    }
#endif

    /* set our certificate */
    load_private_key = 0;
    if (certfile != NULL) {
	load_private_key = 1;

	Tcl_DStringInit(&ds);

	if (SSL_CTX_use_certificate_file(ctx, F2N( certfile, &ds),
					SSL_FILETYPE_PEM) <= 0) {
	    Tcl_DStringFree(&ds);
	    Tcl_AppendResult(interp,
			     "unable to set certificate file ", certfile, ": ",
			     REASON(), (char *)NULL);
	    SSL_CTX_free(ctx);
	    return NULL;
	}


    } else if (cert != NULL) {
	load_private_key = 1;
	if (SSL_CTX_use_certificate_ASN1(ctx, cert_len, cert) <= 0) {
	    Tcl_DStringFree(&ds);
	    Tcl_AppendResult(interp,
			     "unable to set certificate: ",
			     REASON(), (char *)NULL);
	    SSL_CTX_free(ctx);
	    return NULL;
	}
    } else {
	certfile = (char*)X509_get_default_cert_file();

	if (SSL_CTX_use_certificate_file(ctx, certfile,
					SSL_FILETYPE_PEM) <= 0) {
#if 0
	    Tcl_DStringFree(&ds);
	    Tcl_AppendResult(interp,
			     "unable to use default certificate file ", certfile, ": ",
			     REASON(), (char *)NULL);
	    SSL_CTX_free(ctx);
	    return NULL;
#endif
	}
    }

    /* set our private key */
    if (load_private_key) {
	if (keyfile == NULL && key == NULL) {
	    keyfile = certfile;
	}

	if (keyfile != NULL) {
	    /* get the private key associated with this certificate */
	    if (keyfile == NULL) {
		keyfile = certfile;
	    }

	    if (SSL_CTX_use_PrivateKey_file(ctx, F2N( keyfile, &ds), SSL_FILETYPE_PEM) <= 0) {
		Tcl_DStringFree(&ds);
		/* flush the passphrase which might be left in the result */
		Tcl_SetResult(interp, NULL, TCL_STATIC);
		Tcl_AppendResult(interp,
			         "unable to set public key file ", keyfile, " ",
			         REASON(), (char *)NULL);
		SSL_CTX_free(ctx);
		return NULL;
	    }

	    Tcl_DStringFree(&ds);
	} else if (key != NULL) {
	    if (SSL_CTX_use_PrivateKey_ASN1(EVP_PKEY_RSA, ctx, key,key_len) <= 0) {
		Tcl_DStringFree(&ds);
		/* flush the passphrase which might be left in the result */
		Tcl_SetResult(interp, NULL, TCL_STATIC);
		Tcl_AppendResult(interp, "unable to set public key: ", REASON(), (char *)NULL);
		SSL_CTX_free(ctx);
		return NULL;
	    }
	}
	/* Now we know that a key and cert have been set against
	 * the SSL context */
	if (!SSL_CTX_check_private_key(ctx)) {
	    Tcl_AppendResult(interp,
			     "private key does not match the certificate public key",
			     (char *)NULL);
	    SSL_CTX_free(ctx);
	    return NULL;
	}
    }




    /* Set verification CAs */


    Tcl_DStringInit(&ds);




    Tcl_DStringInit(&ds1);
    if (!SSL_CTX_load_verify_locations(ctx, F2N(CAfile, &ds), F2N(CAdir, &ds1)) ||
	!SSL_CTX_set_default_verify_paths(ctx)) {
#if 0


	Tcl_DStringFree(&ds);
	Tcl_DStringFree(&ds1);
	/* Don't currently care if this fails */









	Tcl_AppendResult(interp, "SSL default verify paths: ",

		REASON(), (char *)NULL);










	SSL_CTX_free(ctx);


	return NULL;




#endif
    }

    /* https://sourceforge.net/p/tls/bugs/57/ */
    /* XXX:TODO: Let the user supply values here instead of something that exists on the filesystem */
    if ( CAfile != NULL ) {
        STACK_OF(X509_NAME) *certNames = SSL_load_client_CA_file( F2N(CAfile, &ds) );
	if ( certNames != NULL ) {
	    SSL_CTX_set_client_CA_list(ctx, certNames );
	}
    }

    Tcl_DStringFree(&ds);
    Tcl_DStringFree(&ds1);
    return ctx;
}

/*
 *-------------------------------------------------------------------
 *
 * StatusObjCmd -- return certificate for connected peer.







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 *
 *-------------------------------------------------------------------
 */

static SSL_CTX *
CTX_Init(
    State *statePtr,
    int isServer,
    int proto,
    char *keyfile,
    char *certfile,
    unsigned char *key,
    unsigned char *cert,
    int key_len,
    int cert_len,
    char *CApath,
    char *CAfile,
    char *ciphers,
    char *ciphersuites,
    int level,
    char *DHparams)
{
    Tcl_Interp *interp = statePtr->interp;
    SSL_CTX *ctx = NULL;
    Tcl_DString ds;

    int off = 0, abort = 0;
    int load_private_key;
    const SSL_METHOD *method;

    dprintf("Called");

    if (!proto) {
	Tcl_AppendResult(interp, "no valid protocol selected", (char *)NULL);
	return NULL;
    }

    /* create SSL context */
    if (ENABLED(proto, TLS_PROTO_SSL2)) {
	Tcl_AppendResult(interp, "SSL2 protocol not supported", (char *)NULL);
	return NULL;
    }
#if defined(NO_SSL3) || defined(OPENSSL_NO_SSL3) || defined(OPENSSL_NO_SSL3_METHOD)
    if (ENABLED(proto, TLS_PROTO_SSL3)) {
	Tcl_AppendResult(interp, "SSL3 protocol not supported", (char *)NULL);
	return NULL;
    }
#endif
#if defined(NO_TLS1) || defined(OPENSSL_NO_TLS1) || defined(OPENSSL_NO_TLS1_METHOD)
    if (ENABLED(proto, TLS_PROTO_TLS1)) {
	Tcl_AppendResult(interp, "TLS 1.0 protocol not supported", (char *)NULL);
	return NULL;
    }
#endif
#if defined(NO_TLS1_1) || defined(OPENSSL_NO_TLS1_1) || defined(OPENSSL_NO_TLS1_1_METHOD)
    if (ENABLED(proto, TLS_PROTO_TLS1_1)) {
	Tcl_AppendResult(interp, "TLS 1.1 protocol not supported", (char *)NULL);
	return NULL;
    }
#endif
#if defined(NO_TLS1_2) || defined(OPENSSL_NO_TLS1_2) || defined(OPENSSL_NO_TLS1_2_METHOD)
    if (ENABLED(proto, TLS_PROTO_TLS1_2)) {
	Tcl_AppendResult(interp, "TLS 1.2 protocol not supported", (char *)NULL);
	return NULL;
    }
#endif
#if defined(NO_TLS1_3) || defined(OPENSSL_NO_TLS1_3) || defined(OPENSSL_NO_TLS1_3_METHOD)
    if (ENABLED(proto, TLS_PROTO_TLS1_3)) {
	Tcl_AppendResult(interp, "TLS 1.3 protocol not supported", (char *)NULL);
	return NULL;
    }
#endif
    if (proto == 0) {
	/* Use full range */
	SSL_CTX_set_min_proto_version(ctx, 0);
	SSL_CTX_set_max_proto_version(ctx, 0);
    }

    switch (proto) {
#if !defined(NO_SSL3) && !defined(OPENSSL_NO_SSL3) && !defined(OPENSSL_NO_SSL3_METHOD)
    case TLS_PROTO_SSL3:
	method = isServer ? SSLv3_server_method() : SSLv3_client_method();
	break;
#endif
#if !defined(NO_TLS1) && !defined(OPENSSL_NO_TLS1) && !defined(OPENSSL_NO_TLS1_METHOD)
    case TLS_PROTO_TLS1:
	method = isServer ? TLSv1_server_method() : TLSv1_client_method();
	break;
#endif
#if !defined(NO_TLS1_1) && !defined(OPENSSL_NO_TLS1_1) && !defined(OPENSSL_NO_TLS1_1_METHOD)
    case TLS_PROTO_TLS1_1:
	method = isServer ? TLSv1_1_server_method() : TLSv1_1_client_method();
	break;
#endif
#if !defined(NO_TLS1_2) && !defined(OPENSSL_NO_TLS1_2) && !defined(OPENSSL_NO_TLS1_2_METHOD)
    case TLS_PROTO_TLS1_2:
	method = isServer ? TLSv1_2_server_method() : TLSv1_2_client_method();
	break;
#endif
#if !defined(NO_TLS1_3) && !defined(OPENSSL_NO_TLS1_3)
    case TLS_PROTO_TLS1_3:
	/* Use the generic method and constraint range after context is created */
	method = isServer ? TLS_server_method() : TLS_client_method();
	break;
#endif
    default:
	/* Negotiate highest available SSL/TLS version */
	method = isServer ? TLS_server_method() : TLS_client_method();



#if !defined(NO_SSL3) && !defined(OPENSSL_NO_SSL3) && !defined(OPENSSL_NO_SSL3_METHOD)
	off |= (ENABLED(proto, TLS_PROTO_SSL3)   ? 0 : SSL_OP_NO_SSLv3);
#endif
#if !defined(NO_TLS1) && !defined(OPENSSL_NO_TLS1) && !defined(OPENSSL_NO_TLS1_METHOD)
	off |= (ENABLED(proto, TLS_PROTO_TLS1)   ? 0 : SSL_OP_NO_TLSv1);
#endif
#if !defined(NO_TLS1_1) && !defined(OPENSSL_NO_TLS1_1) && !defined(OPENSSL_NO_TLS1_1_METHOD)
	off |= (ENABLED(proto, TLS_PROTO_TLS1_1) ? 0 : SSL_OP_NO_TLSv1_1);
#endif
#if !defined(NO_TLS1_2) && !defined(OPENSSL_NO_TLS1_2) && !defined(OPENSSL_NO_TLS1_2_METHOD)
	off |= (ENABLED(proto, TLS_PROTO_TLS1_2) ? 0 : SSL_OP_NO_TLSv1_2);
#endif
#if !defined(NO_TLS1_3) && !defined(OPENSSL_NO_TLS1_3) && !defined(OPENSSL_NO_TLS1_3_METHOD)
	off |= (ENABLED(proto, TLS_PROTO_TLS1_3) ? 0 : SSL_OP_NO_TLSv1_3);
#endif
	break;
    }

    ERR_clear_error();

    ctx = SSL_CTX_new(method);
    if (!ctx) {
	return(NULL);
    }

    if (getenv(SSLKEYLOGFILE)) {
	SSL_CTX_set_keylog_callback(ctx, KeyLogCallback);
    }

#if !defined(NO_TLS1_3) && !defined(OPENSSL_NO_TLS1_3)
    if (proto == TLS_PROTO_TLS1_3) {
	SSL_CTX_set_min_proto_version(ctx, TLS1_3_VERSION);
	SSL_CTX_set_max_proto_version(ctx, TLS1_3_VERSION);
    }
#endif

    /* Force cipher selection order by server */
    if (!isServer) {
	SSL_CTX_set_options(ctx, SSL_OP_CIPHER_SERVER_PREFERENCE);
    }

    SSL_CTX_set_app_data(ctx, (void*)interp);	/* remember the interpreter */
    SSL_CTX_set_options(ctx, SSL_OP_ALL);	/* all SSL bug workarounds */
    SSL_CTX_set_options(ctx, SSL_OP_NO_COMPRESSION);	/* disable compression even if supported */
    SSL_CTX_set_options(ctx, off);		/* disable protocol versions */
    SSL_CTX_sess_set_cache_size(ctx, 128);

    /* Set user defined ciphers, cipher suites, and security level */
    if ((ciphers != NULL) && !SSL_CTX_set_cipher_list(ctx, ciphers)) {
	Tcl_AppendResult(interp, "Set ciphers failed: No valid ciphers", (char *)NULL);
	SSL_CTX_free(ctx);
	return NULL;
    }
    if ((ciphersuites != NULL) && !SSL_CTX_set_ciphersuites(ctx, ciphersuites)) {
	Tcl_AppendResult(interp, "Set cipher suites failed: No valid ciphers", (char *)NULL);
	SSL_CTX_free(ctx);
	return NULL;
    }

    /* Set security level */
    if (level > -1 && level < 6) {
	/* SSL_set_security_level */
	SSL_CTX_set_security_level(ctx, level);
    }

    /* set some callbacks */
    SSL_CTX_set_default_passwd_cb(ctx, PasswordCallback);


    SSL_CTX_set_default_passwd_cb_userdata(ctx, (void *)statePtr);


    /* read a Diffie-Hellman parameters file, or use the built-in one */
#ifdef OPENSSL_NO_DH
    if (DHparams != NULL) {

	Tcl_AppendResult(interp, "DH parameter support not available", (char *)NULL);
	SSL_CTX_free(ctx);
	return NULL;
    }
#else
    {
	DH* dh;
	if (DHparams != NULL) {
	    BIO *bio;

	    bio = BIO_new_file(F2N(DHparams, &ds), "r");
	    if (!bio) {
		Tcl_DStringFree(&ds);

		Tcl_AppendResult(interp, "Could not find DH parameters file", (char *)NULL);
		SSL_CTX_free(ctx);
		return NULL;
	    }

	    dh = PEM_read_bio_DHparams(bio, NULL, NULL, NULL);
	    BIO_free(bio);
	    Tcl_DStringFree(&ds);
	    if (!dh) {
		Tcl_AppendResult(interp, "Could not read DH parameters from file", (char *)NULL);
		SSL_CTX_free(ctx);
		return NULL;
	    }
	    SSL_CTX_set_tmp_dh(ctx, dh);
	    DH_free(dh);

	} else {
	    /* Use well known DH parameters that have built-in support in OpenSSL */
	    if (!SSL_CTX_set_dh_auto(ctx, 1)) {
		Tcl_AppendResult(interp, "Could not enable set DH auto: ", GET_ERR_REASON(), (char *)NULL);
		SSL_CTX_free(ctx);
		return NULL;
	    }


	}


    }
#endif

    /* set our certificate */
    load_private_key = 0;
    if (certfile != NULL) {
	load_private_key = 1;



	if (SSL_CTX_use_certificate_file(ctx, F2N(certfile, &ds), SSL_FILETYPE_PEM) <= 0) {

	    Tcl_DStringFree(&ds);

	    Tcl_AppendResult(interp, "unable to set certificate file ", certfile, ": ",
		    GET_ERR_REASON(), (char *)NULL);
	    SSL_CTX_free(ctx);
	    return NULL;
	}
	Tcl_DStringFree(&ds);

    } else if (cert != NULL) {
	load_private_key = 1;
	if (SSL_CTX_use_certificate_ASN1(ctx, cert_len, cert) <= 0) {

	    Tcl_AppendResult(interp, "unable to set certificate: ",

		    GET_ERR_REASON(), (char *)NULL);
	    SSL_CTX_free(ctx);
	    return NULL;
	}
    } else {
	certfile = (char*)X509_get_default_cert_file();

	if (SSL_CTX_use_certificate_file(ctx, certfile, SSL_FILETYPE_PEM) <= 0) {

#if 0


	    Tcl_AppendResult(interp, "unable to use default certificate file ", certfile, ": ",
		    GET_ERR_REASON(), (char *)NULL);
	    SSL_CTX_free(ctx);
	    return NULL;
#endif
	}
    }

    /* set our private key */
    if (load_private_key) {
	if (keyfile == NULL && key == NULL) {
	    keyfile = certfile;
	}

	if (keyfile != NULL) {
	    /* get the private key associated with this certificate */
	    if (keyfile == NULL) {
		keyfile = certfile;
	    }

	    if (SSL_CTX_use_PrivateKey_file(ctx, F2N(keyfile, &ds), SSL_FILETYPE_PEM) <= 0) {
		Tcl_DStringFree(&ds);
		/* flush the passphrase which might be left in the result */
		Tcl_SetResult(interp, NULL, TCL_STATIC);

		Tcl_AppendResult(interp, "unable to set public key file ", keyfile, " ",
			GET_ERR_REASON(), (char *)NULL);
		SSL_CTX_free(ctx);
		return NULL;
	    }

	    Tcl_DStringFree(&ds);
	} else if (key != NULL) {
	    if (SSL_CTX_use_PrivateKey_ASN1(EVP_PKEY_RSA, ctx, key,key_len) <= 0) {

		/* flush the passphrase which might be left in the result */
		Tcl_SetResult(interp, NULL, TCL_STATIC);
		Tcl_AppendResult(interp, "unable to set public key: ", GET_ERR_REASON(), (char *)NULL);
		SSL_CTX_free(ctx);
		return NULL;
	    }
	}
	/* Now we know that a key and cert have been set against
	 * the SSL context */
	if (!SSL_CTX_check_private_key(ctx)) {
	    Tcl_AppendResult(interp,
			    "private key does not match the certificate public key",
			    (char *)NULL);
	    SSL_CTX_free(ctx);
	    return NULL;
	}
    }

    /* Set to use default location and file for Certificate Authority (CA) certificates. The
     * verify path and store can be overridden by the SSL_CERT_DIR env var. The verify file can
     * be overridden by the SSL_CERT_FILE env var. */
    if (!SSL_CTX_set_default_verify_paths(ctx)) {
	abort++;
    }

    /* Overrides for the CA verify path and file */
    {
#if OPENSSL_VERSION_NUMBER < 0x30000000L
	if (CApath != NULL || CAfile != NULL) {
	    Tcl_DString ds1;
	    if (!SSL_CTX_load_verify_locations(ctx, F2N(CAfile, &ds), F2N(CApath, &ds1))) {


		abort++;
	    }
	    Tcl_DStringFree(&ds);
	    Tcl_DStringFree(&ds1);

	    /* Set list of CAs to send to client when requesting a client certificate */
	    /* https://sourceforge.net/p/tls/bugs/57/ */
	    /* XXX:TODO: Let the user supply values here instead of something that exists on the filesystem */
	    STACK_OF(X509_NAME) *certNames = SSL_load_client_CA_file(F2N(CAfile, &ds));
	    if (certNames != NULL) {
		SSL_CTX_set_client_CA_list(ctx, certNames);
	    }
	    Tcl_DStringFree(&ds);
	}

#else
	if (CApath != NULL) {
	    if (!SSL_CTX_load_verify_dir(ctx, F2N(CApath, &ds))) {
		abort++;
	    }
	    Tcl_DStringFree(&ds);
	}
	if (CAfile != NULL) {
	    if (!SSL_CTX_load_verify_file(ctx, F2N(CAfile, &ds))) {
		abort++;
	    }
	    Tcl_DStringFree(&ds);

	    /* Set list of CAs to send to client when requesting a client certificate */
	    STACK_OF(X509_NAME) *certNames = SSL_load_client_CA_file(F2N(CAfile, &ds));
	    if (certNames != NULL) {
		SSL_CTX_set_client_CA_list(ctx, certNames);
	    }
	    Tcl_DStringFree(&ds);
	}
#endif
    }












    return ctx;
}

/*
 *-------------------------------------------------------------------
 *
 * StatusObjCmd -- return certificate for connected peer.
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{
    State *statePtr;
    X509 *peer;
    Tcl_Obj *objPtr;
    Tcl_Channel chan;
    char *channelName, *ciphers;
    int mode;




    dprintf("Called");

    switch (objc) {
	case 2:
	    channelName = Tcl_GetString(objv[1]);
	    break;

	case 3:
	    if (!strcmp (Tcl_GetString (objv[1]), "-local")) {
		channelName = Tcl_GetString(objv[2]);
		break;
	    }
	    /* fallthrough */
	default:
	    Tcl_WrongNumArgs(interp, 1, objv, "?-local? channel");
	    return TCL_ERROR;
    }



    chan = Tcl_GetChannel(interp, channelName, &mode);
    if (chan == (Tcl_Channel) NULL) {
	return TCL_ERROR;
    }
    /*
     * Make sure to operate on the topmost channel
     */
    chan = Tcl_GetTopChannel(chan);
    if (Tcl_GetChannelType(chan) != Tls_ChannelType()) {
	Tcl_AppendResult(interp, "bad channel \"", Tcl_GetChannelName(chan),
		"\": not a TLS channel", (char *)NULL);

	return TCL_ERROR;
    }
    statePtr = (State *) Tcl_GetChannelInstanceData(chan);


    if (objc == 2) {
	peer = SSL_get_peer_certificate(statePtr->ssl);
    } else {
	peer = SSL_get_certificate(statePtr->ssl);
    }

    if (peer) {
	objPtr = Tls_NewX509Obj(interp, peer);
	if (objc == 2) { X509_free(peer); }



    } else {
	objPtr = Tcl_NewListObj(0, NULL);
    }

    Tcl_ListObjAppendElement (interp, objPtr,
	    Tcl_NewStringObj ("sbits", -1));
    Tcl_ListObjAppendElement (interp, objPtr,
	    Tcl_NewIntObj (SSL_get_cipher_bits (statePtr->ssl, NULL)));

    ciphers = (char*)SSL_get_cipher(statePtr->ssl);

    if (ciphers != NULL && strcmp(ciphers, "(NONE)")!=0) {











	Tcl_ListObjAppendElement(interp, objPtr,





		Tcl_NewStringObj("cipher", -1));


	Tcl_ListObjAppendElement(interp, objPtr,



		Tcl_NewStringObj(SSL_get_cipher(statePtr->ssl), -1));


    }




















































































































































    Tcl_ListObjAppendElement(interp, objPtr,


	Tcl_NewStringObj("version", -1));






































































































    Tcl_ListObjAppendElement(interp, objPtr,
	Tcl_NewStringObj(SSL_get_version(statePtr->ssl), -1));






    Tcl_SetObjResult( interp, objPtr);
    return TCL_OK;
}

/*
 *-------------------------------------------------------------------
 *
 * VersionObjCmd -- return version string from OpenSSL.







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{
    State *statePtr;
    X509 *peer;
    Tcl_Obj *objPtr;
    Tcl_Channel chan;
    char *channelName, *ciphers;
    int mode;
    const unsigned char *proto;
    unsigned int len;
    int nid, res;

    dprintf("Called");



    if (objc < 2 || objc > 3 || (objc == 3 && !strcmp(Tcl_GetString(objv[1]), "-local"))) {









	Tcl_WrongNumArgs(interp, 1, objv, "?-local? channel");
	return TCL_ERROR;
    }

    /* Get channel Id */
    channelName = Tcl_GetStringFromObj(objv[(objc == 2 ? 1 : 2)], (Tcl_Size *) NULL);
    chan = Tcl_GetChannel(interp, channelName, &mode);
    if (chan == (Tcl_Channel) NULL) {
	return TCL_ERROR;
    }

    /* Make sure to operate on the topmost channel */

    chan = Tcl_GetTopChannel(chan);
    if (Tcl_GetChannelType(chan) != Tls_ChannelType()) {
	Tcl_AppendResult(interp, "bad channel \"", Tcl_GetChannelName(chan),
		"\": not a TLS channel", NULL);
	Tcl_SetErrorCode(interp, "TLS", "STATUS", "CHANNEL", "INVALID", (char *)NULL);
	return TCL_ERROR;
    }
    statePtr = (State *) Tcl_GetChannelInstanceData(chan);

    /* Get certificate for peer or self */
    if (objc == 2) {
	peer = SSL_get_peer_certificate(statePtr->ssl);
    } else {
	peer = SSL_get_certificate(statePtr->ssl);
    }
    /* Get X509 certificate info */
    if (peer) {
	objPtr = Tls_NewX509Obj(interp, peer);
	if (objc == 2) {
	    X509_free(peer);
	    peer = NULL;
	}
    } else {
	objPtr = Tcl_NewListObj(0, NULL);
    }

    /* Peer name */

    LAPPEND_STR(interp, objPtr, "peername", SSL_get0_peername(statePtr->ssl), -1);
    LAPPEND_INT(interp, objPtr, "sbits", SSL_get_cipher_bits(statePtr->ssl, NULL));

    ciphers = (char*)SSL_get_cipher(statePtr->ssl);
    LAPPEND_STR(interp, objPtr, "cipher", ciphers, -1);

    /* Verify the X509 certificate presented by the peer */
    LAPPEND_STR(interp, objPtr, "verifyResult",
	X509_verify_cert_error_string(SSL_get_verify_result(statePtr->ssl)), -1);

    /* Verify mode */
    mode = SSL_get_verify_mode(statePtr->ssl);
    if (mode && SSL_VERIFY_NONE) {
	LAPPEND_STR(interp, objPtr, "verifyMode", "none", -1);
    } else {
	Tcl_Obj *listObjPtr = Tcl_NewListObj(0, NULL);
	if (mode && SSL_VERIFY_PEER) {
	    Tcl_ListObjAppendElement(interp, listObjPtr, Tcl_NewStringObj("peer", -1));
	}
	if (mode && SSL_VERIFY_FAIL_IF_NO_PEER_CERT) {
	    Tcl_ListObjAppendElement(interp, listObjPtr, Tcl_NewStringObj("fail if no peer cert", -1));
	}
	if (mode && SSL_VERIFY_CLIENT_ONCE) {
	    Tcl_ListObjAppendElement(interp, listObjPtr, Tcl_NewStringObj("client once", -1));
	}
	if (mode && SSL_VERIFY_POST_HANDSHAKE) {
	    Tcl_ListObjAppendElement(interp, listObjPtr, Tcl_NewStringObj("post handshake", -1));
	}
	LAPPEND_OBJ(interp, objPtr, "verifyMode", listObjPtr)
    }

    /* Verify mode depth */
    LAPPEND_INT(interp, objPtr, "verifyDepth", SSL_get_verify_depth(statePtr->ssl));

    /* Report the selected protocol as a result of the negotiation */
    SSL_get0_alpn_selected(statePtr->ssl, &proto, &len);
    LAPPEND_STR(interp, objPtr, "alpn", (char *)proto, (Tcl_Size) len);
    LAPPEND_STR(interp, objPtr, "protocol", SSL_get_version(statePtr->ssl), -1);

    /* Valid for non-RSA signature and TLS 1.3 */
    if (objc == 2) {
	res = SSL_get_peer_signature_nid(statePtr->ssl, &nid);
    } else {
	res = SSL_get_signature_nid(statePtr->ssl, &nid);
    }
    if (!res) {nid = 0;}
    LAPPEND_STR(interp, objPtr, "signatureHashAlgorithm", OBJ_nid2ln(nid), -1);

    if (objc == 2) {
	res = SSL_get_peer_signature_type_nid(statePtr->ssl, &nid);
    } else {
	res = SSL_get_signature_type_nid(statePtr->ssl, &nid);
    }
    if (!res) {nid = 0;}
    LAPPEND_STR(interp, objPtr, "signatureType", OBJ_nid2ln(nid), -1);

    Tcl_SetObjResult(interp, objPtr);
    return TCL_OK;
}

/*
 *-------------------------------------------------------------------
 *
 * ConnectionInfoObjCmd -- return connection info from OpenSSL.
 *
 * Results:
 *	A list of connection info
  *
 *-------------------------------------------------------------------
 */

static int ConnectionInfoObjCmd(
    TCL_UNUSED(void *),
    Tcl_Interp *interp,
    int objc,
    Tcl_Obj *const objv[])
{
    Tcl_Channel chan;		/* The channel to set a mode on */
    State *statePtr;		/* client state for ssl socket */
    Tcl_Obj *objPtr, *listPtr;
    const SSL *ssl;
    const SSL_CIPHER *cipher;
    const SSL_SESSION *session;
    const EVP_MD *md;

    if (objc != 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "channel");
	return(TCL_ERROR);
    }

    chan = Tcl_GetChannel(interp, Tcl_GetStringFromObj(objv[1], (Tcl_Size *)NULL), NULL);
    if (chan == (Tcl_Channel) NULL) {
	return(TCL_ERROR);
    }

    /* Make sure to operate on the topmost channel */
    chan = Tcl_GetTopChannel(chan);
    if (Tcl_GetChannelType(chan) != Tls_ChannelType()) {
	Tcl_AppendResult(interp, "bad channel \"", Tcl_GetChannelName(chan),
	    "\": not a TLS channel", NULL);
	Tcl_SetErrorCode(interp, "TLS", "CONNECTION", "CHANNEL", "INVALID", (char *)NULL);
	return(TCL_ERROR);
    }

    objPtr = Tcl_NewListObj(0, NULL);

    /* Connection info */
    statePtr = (State *)Tcl_GetChannelInstanceData(chan);
    ssl = statePtr->ssl;
    if (ssl != NULL) {
	/* connection state */
	LAPPEND_STR(interp, objPtr, "state", SSL_state_string_long(ssl), -1);

	/* Get SNI requested server name */
	LAPPEND_STR(interp, objPtr, "servername", SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name), -1);

	/* Get protocol */
	LAPPEND_STR(interp, objPtr, "protocol", SSL_get_version(ssl), -1);

	/* Renegotiation allowed */
	LAPPEND_BOOL(interp, objPtr, "renegotiation_allowed", SSL_get_secure_renegotiation_support((SSL *) ssl));

	/* Get security level */
	LAPPEND_INT(interp, objPtr, "security_level", SSL_get_security_level(ssl));

	/* Session info */
	LAPPEND_BOOL(interp, objPtr, "session_reused", SSL_session_reused(ssl));

	/* Is server info */
	LAPPEND_BOOL(interp, objPtr, "is_server", SSL_is_server(ssl));

	/* Is DTLS */
	LAPPEND_BOOL(interp, objPtr, "is_dtls", SSL_is_dtls(ssl));
    }

    /* Cipher info */
    cipher = SSL_get_current_cipher(ssl);
    if (cipher != NULL) {
	char buf[BUFSIZ] = {0};
	int bits, alg_bits;

	/* Cipher name */
	LAPPEND_STR(interp, objPtr, "cipher", SSL_CIPHER_get_name(cipher), -1);

	/* RFC name of cipher */
	LAPPEND_STR(interp, objPtr, "standard_name", SSL_CIPHER_standard_name(cipher), -1);

	/* OpenSSL name of cipher */
	LAPPEND_STR(interp, objPtr, "openssl_name", OPENSSL_cipher_name(SSL_CIPHER_standard_name(cipher)), -1);

	/* number of secret bits used for cipher */
	bits = SSL_CIPHER_get_bits(cipher, &alg_bits);
	LAPPEND_INT(interp, objPtr, "secret_bits", bits);
	LAPPEND_INT(interp, objPtr, "algorithm_bits", alg_bits);
	/* alg_bits is actual key secret bits. If use bits and secret (algorithm) bits differ,
	   the rest of the bits are fixed, i.e. for limited export ciphers (bits < 56) */

	/* Indicates which SSL/TLS protocol version first defined the cipher */
	LAPPEND_STR(interp, objPtr, "min_version", SSL_CIPHER_get_version(cipher), -1);

	/* Cipher NID */
	LAPPEND_STR(interp, objPtr, "cipherNID", (char *)OBJ_nid2ln(SSL_CIPHER_get_cipher_nid(cipher)), -1);
	LAPPEND_STR(interp, objPtr, "digestNID", (char *)OBJ_nid2ln(SSL_CIPHER_get_digest_nid(cipher)), -1);
	LAPPEND_STR(interp, objPtr, "keyExchangeNID", (char *)OBJ_nid2ln(SSL_CIPHER_get_kx_nid(cipher)), -1);
	LAPPEND_STR(interp, objPtr, "authenticationNID", (char *)OBJ_nid2ln(SSL_CIPHER_get_auth_nid(cipher)), -1);

	/* message authentication code - Cipher is AEAD (e.g. GCM or ChaCha20/Poly1305) or not */
	/* Authenticated Encryption with associated data (AEAD) check */
	LAPPEND_BOOL(interp, objPtr, "cipher_is_aead", SSL_CIPHER_is_aead(cipher));

	/* Digest used during the SSL/TLS handshake when using the cipher. */
	md = SSL_CIPHER_get_handshake_digest(cipher);
	LAPPEND_STR(interp, objPtr, "handshake_digest", (char *)EVP_MD_name(md), -1);

	/* Get OpenSSL-specific ID, not IANA ID */
	LAPPEND_INT(interp, objPtr, "cipher_id", (int) SSL_CIPHER_get_id(cipher));

	/* Two-byte ID used in the TLS protocol of the given cipher */
	LAPPEND_INT(interp, objPtr, "protocol_id", (int) SSL_CIPHER_get_protocol_id(cipher));

	/* Textual description of the cipher */
	if (SSL_CIPHER_description(cipher, buf, sizeof(buf)) != NULL) {
	    LAPPEND_STR(interp, objPtr, "description", buf, -1);
	}
    }

    /* Session info */
    session = SSL_get_session(ssl);
    if (session != NULL) {
	const unsigned char *ticket;
	size_t len2;
	unsigned int ulen;
	const unsigned char *session_id, *proto;
	unsigned char buffer[SSL_MAX_MASTER_KEY_LENGTH];

	/* Report the selected protocol as a result of the ALPN negotiation */
	SSL_SESSION_get0_alpn_selected(session, &proto, &len2);
	LAPPEND_STR(interp, objPtr, "alpn", (char *) proto, (Tcl_Size) len2);

	/* Report the selected protocol as a result of the NPN negotiation */
#ifdef USE_NPN
	SSL_get0_next_proto_negotiated(ssl, &proto, &ulen);
	LAPPEND_STR(interp, objPtr, "npn", (char *) proto, (Tcl_Size) ulen);
#endif

	/* Resumable session */
	LAPPEND_BOOL(interp, objPtr, "resumable", SSL_SESSION_is_resumable(session));

	/* Session start time (seconds since epoch) */
	LAPPEND_LONG(interp, objPtr, "start_time", SSL_SESSION_get_time(session));

	/* Timeout value - SSL_CTX_get_timeout (in seconds) */
	LAPPEND_LONG(interp, objPtr, "timeout", SSL_SESSION_get_timeout(session));

	/* Session id - TLSv1.2 and below only */
	session_id = SSL_SESSION_get_id(session, &ulen);
	LAPPEND_BARRAY(interp, objPtr, "session_id", session_id, (Tcl_Size) ulen);

	/* Session context */
	session_id = SSL_SESSION_get0_id_context(session, &ulen);
	LAPPEND_BARRAY(interp, objPtr, "session_context", session_id, (Tcl_Size) ulen);

	/* Session ticket - client only */
	SSL_SESSION_get0_ticket(session, &ticket, &len2);
	LAPPEND_BARRAY(interp, objPtr, "session_ticket", ticket, (Tcl_Size) len2);

	/* Session ticket lifetime hint (in seconds) */
	LAPPEND_LONG(interp, objPtr, "lifetime", SSL_SESSION_get_ticket_lifetime_hint(session));

	/* Ticket app data */
#if OPENSSL_VERSION_NUMBER < 0x30000000L
	SSL_SESSION_get0_ticket_appdata((SSL_SESSION *) session, &ticket, &len2);
	LAPPEND_BARRAY(interp, objPtr, "ticket_app_data", ticket, (Tcl_Size) len2);
#endif

	/* Get master key */
	len2 = SSL_SESSION_get_master_key(session, buffer, SSL_MAX_MASTER_KEY_LENGTH);
	LAPPEND_BARRAY(interp, objPtr, "master_key", buffer, (Tcl_Size) len2);

	/* Compression id */
	unsigned int id = SSL_SESSION_get_compress_id(session);
	LAPPEND_STR(interp, objPtr, "compression_id", id == 1 ? "zlib" : "none", -1);
    }

    /* Compression info */
    if (ssl != NULL) {
#ifdef HAVE_SSL_COMPRESSION
	const COMP_METHOD *comp, *expn;
	comp = SSL_get_current_compression(ssl);
	expn = SSL_get_current_expansion(ssl);

	LAPPEND_STR(interp, objPtr, "compression", comp ? SSL_COMP_get_name(comp) : "none", -1);
	LAPPEND_STR(interp, objPtr, "expansion", expn ? SSL_COMP_get_name(expn) : "none", -1);
#else
	LAPPEND_STR(interp, objPtr, "compression", "none", -1);
	LAPPEND_STR(interp, objPtr, "expansion", "none", -1);
#endif
    }

    /* Server info */
    {
	long mode = SSL_CTX_get_session_cache_mode(statePtr->ctx);
	char *msg;

	if (mode & SSL_SESS_CACHE_OFF) {
	    msg = "off";
	} else if (mode & SSL_SESS_CACHE_CLIENT) {
	    msg = "client";
	} else if (mode & SSL_SESS_CACHE_SERVER) {
	    msg = "server";
	} else if (mode & SSL_SESS_CACHE_BOTH) {
	    msg = "both";
	} else {
	    msg = "unknown";
	}
	LAPPEND_STR(interp, objPtr, "session_cache_mode", msg, -1);
    }

    /* CA List */
    /* IF not a server, same as SSL_get0_peer_CA_list. If server same as SSL_CTX_get_client_CA_list */
    listPtr = Tcl_NewListObj(0, NULL);
    STACK_OF(X509_NAME) *ca_list;
    if ((ca_list = SSL_get_client_CA_list(ssl)) != NULL) {
	char buffer[BUFSIZ];
	for (int i = 0; i < sk_X509_NAME_num(ca_list); i++) {
	    X509_NAME *name = sk_X509_NAME_value(ca_list, i);
	    if (name) {
		X509_NAME_oneline(name, buffer, BUFSIZ);
		Tcl_ListObjAppendElement(interp, listPtr, Tcl_NewStringObj(buffer, -1));

	    }
	}
    }
    LAPPEND_OBJ(interp, objPtr, "caList", listPtr);
    LAPPEND_INT(interp, objPtr, "caListCount", sk_X509_NAME_num(ca_list));

    Tcl_SetObjResult(interp, objPtr);
    return TCL_OK;
}

/*
 *-------------------------------------------------------------------
 *
 * VersionObjCmd -- return version string from OpenSSL.
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static int
MiscObjCmd(
    TCL_UNUSED(void *),
    Tcl_Interp *interp,
    int objc,
    Tcl_Obj	*const objv[])
{
    static const char *commands [] = { "req", NULL };
    enum command { C_REQ, C_DUMMY };
    int cmd;



    dprintf("Called");

    if (objc < 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "subcommand ?args?");
	return TCL_ERROR;
    }
    if (Tcl_GetIndexFromObj(interp, objv[1], commands,
	    "command", 0,&cmd) != TCL_OK) {
	return TCL_ERROR;
    }




    switch ((enum command) cmd) {
	case C_REQ: {

	    EVP_PKEY *pkey=NULL;
	    X509 *cert=NULL;
	    X509_NAME *name=NULL;
	    Tcl_Obj **listv;
	    Tcl_Size listc,i;

	    BIO *out=NULL;

	    const char *k_C="",*k_ST="",*k_L="",*k_O="",*k_OU="",*k_CN="",*k_Email="";
	    char *keyout,*pemout,*str;
	    int keysize,serial=0,days=365;








	    if ((objc<5) || (objc>6)) {
		Tcl_WrongNumArgs(interp, 2, objv, "keysize keyfile certfile ?info?");
		return TCL_ERROR;
	    }

	    if (Tcl_GetIntFromObj(interp, objv[2], &keysize) != TCL_OK) {
		return TCL_ERROR;
	    }
	    keyout=Tcl_GetString(objv[3]);
	    pemout=Tcl_GetString(objv[4]);





	    if (objc>=6) {
		if (Tcl_ListObjGetElements(interp, objv[5],
			&listc, &listv) != TCL_OK) {
		    return TCL_ERROR;
		}

		if ((listc%2) != 0) {
		    Tcl_SetResult(interp,"Information list must have even number of arguments",NULL);
		    return TCL_ERROR;
		}
		for (i=0; i<listc; i+=2) {
		    str=Tcl_GetString(listv[i]);
		    if (strcmp(str,"days")==0) {
			if (Tcl_GetIntFromObj(interp,listv[i+1],&days)!=TCL_OK)
			    return TCL_ERROR;
		    } else if (strcmp(str,"serial")==0) {
			if (Tcl_GetIntFromObj(interp,listv[i+1],&serial)!=TCL_OK)
			    return TCL_ERROR;
		    } else if (strcmp(str,"serial")==0) {
			if (Tcl_GetIntFromObj(interp,listv[i+1],&serial)!=TCL_OK)
			    return TCL_ERROR;
		    } else if (strcmp(str,"C")==0) {
			k_C=Tcl_GetString(listv[i+1]);
		    } else if (strcmp(str,"ST")==0) {
			k_ST=Tcl_GetString(listv[i+1]);







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2559
2560

2561
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2566
2567
2568
2569
2570
2571
2572



2573
2574
2575
2576
2577
2578
2579
static int
MiscObjCmd(
    TCL_UNUSED(void *),
    Tcl_Interp *interp,
    int objc,
    Tcl_Obj	*const objv[])
{
    static const char *commands [] = { "req", "strreq", NULL };
    enum command { C_REQ, C_STRREQ, C_DUMMY };
    Tcl_Size cmd;
    int isStr;
    char buffer[16384];

    dprintf("Called");

    if (objc < 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "subcommand ?args?");
	return TCL_ERROR;
    }
    if (Tcl_GetIndexFromObj(interp, objv[1], commands,
	    "command", 0,&cmd) != TCL_OK) {
	return TCL_ERROR;
    }

    ERR_clear_error();

    isStr = (cmd == C_STRREQ);
    switch ((enum command) cmd) {
	case C_REQ:
	case C_STRREQ: {
	    EVP_PKEY *pkey=NULL;
	    X509 *cert=NULL;
	    X509_NAME *name=NULL;
	    Tcl_Obj **listv;
	    Tcl_Size listc,i;

	    BIO *out=NULL;

	    const char *k_C="",*k_ST="",*k_L="",*k_O="",*k_OU="",*k_CN="",*k_Email="";
	    char *keyout,*pemout,*str;
	    int keysize,serial=0,days=365;

#if OPENSSL_VERSION_NUMBER < 0x30000000L
	    BIGNUM *bne = NULL;
	    RSA *rsa = NULL;
#else
	    EVP_PKEY_CTX *ctx = NULL;
#endif

	    if ((objc<5) || (objc>6)) {
		Tcl_WrongNumArgs(interp, 2, objv, "keysize keyfile certfile ?info?");
		return TCL_ERROR;
	    }

	    if (Tcl_GetIntFromObj(interp, objv[2], &keysize) != TCL_OK) {
		return TCL_ERROR;
	    }
	    keyout=Tcl_GetString(objv[3]);
	    pemout=Tcl_GetString(objv[4]);
	    if (isStr) {
		Tcl_SetVar(interp,keyout,"",0);
		Tcl_SetVar(interp,pemout,"",0);
	    }

	    if (objc>=6) {
		if (Tcl_ListObjGetElements(interp, objv[5], &listc, &listv) != TCL_OK) {

		    return TCL_ERROR;
		}

		if ((listc%2) != 0) {
		    Tcl_SetResult(interp,"Information list must have even number of arguments",NULL);
		    return TCL_ERROR;
		}
		for (i=0; i<listc; i+=2) {
		    str=Tcl_GetString(listv[i]);
		    if (strcmp(str,"days")==0) {
			if (Tcl_GetIntFromObj(interp,listv[i+1],&days)!=TCL_OK)
			    return TCL_ERROR;



		    } else if (strcmp(str,"serial")==0) {
			if (Tcl_GetIntFromObj(interp,listv[i+1],&serial)!=TCL_OK)
			    return TCL_ERROR;
		    } else if (strcmp(str,"C")==0) {
			k_C=Tcl_GetString(listv[i+1]);
		    } else if (strcmp(str,"ST")==0) {
			k_ST=Tcl_GetString(listv[i+1]);
1569
1570
1571
1572
1573
1574
1575




1576

1577




1578
1579


1580



1581
1582










1583
1584
1585

1586
1587

1588
1589
1590



1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
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1610
1611
1612
1613
1614



1615
1616
1617
1618










1619
1620
1621
1622
1623
1624

1625
1626


1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
			k_Email=Tcl_GetString(listv[i+1]);
		    } else {
			Tcl_SetResult(interp,"Unknown parameter",NULL);
			return TCL_ERROR;
		    }
		}
	    }




	    if ((pkey = EVP_PKEY_new()) != NULL) {

		if (!EVP_PKEY_assign_RSA(pkey,




			RSA_generate_key(keysize, 0x10001, NULL, NULL))) {
		    Tcl_SetResult(interp,"Error generating private key",NULL);


		    EVP_PKEY_free(pkey);



		    return TCL_ERROR;
		}










		out=BIO_new(BIO_s_file());
		BIO_write_filename(out,keyout);
		PEM_write_bio_PrivateKey(out,pkey,NULL,NULL,0,NULL,NULL);

		BIO_free_all(out);


		if ((cert=X509_new())==NULL) {
		    Tcl_SetResult(interp,"Error generating certificate request",NULL);
		    EVP_PKEY_free(pkey);



		    return(TCL_ERROR);
		}

		X509_set_version(cert,2);
		ASN1_INTEGER_set(X509_get_serialNumber(cert),serial);
		X509_gmtime_adj(X509_get_notBefore(cert),0);
		X509_gmtime_adj(X509_get_notAfter(cert),(long)60*60*24*days);
		X509_set_pubkey(cert,pkey);

		name=X509_get_subject_name(cert);

		X509_NAME_add_entry_by_txt(name,"C", MBSTRING_ASC, (unsigned char *) k_C, -1, -1, 0);
		X509_NAME_add_entry_by_txt(name,"ST", MBSTRING_ASC, (unsigned char *) k_ST, -1, -1, 0);
		X509_NAME_add_entry_by_txt(name,"L", MBSTRING_ASC, (unsigned char *) k_L, -1, -1, 0);
		X509_NAME_add_entry_by_txt(name,"O", MBSTRING_ASC, (unsigned char *) k_O, -1, -1, 0);
		X509_NAME_add_entry_by_txt(name,"OU", MBSTRING_ASC, (unsigned char *) k_OU, -1, -1, 0);
		X509_NAME_add_entry_by_txt(name,"CN", MBSTRING_ASC, (unsigned char *) k_CN, -1, -1, 0);
		X509_NAME_add_entry_by_txt(name,"Email", MBSTRING_ASC, (unsigned char *) k_Email, -1, -1, 0);

		X509_set_subject_name(cert,name);

		if (!X509_sign(cert,pkey,EVP_md5())) {
		    X509_free(cert);
		    EVP_PKEY_free(pkey);



		    Tcl_SetResult(interp,"Error signing certificate",NULL);
		    return TCL_ERROR;
		}











		out=BIO_new(BIO_s_file());
		BIO_write_filename(out,pemout);

		PEM_write_bio_X509(out,cert);
		BIO_free_all(out);


		X509_free(cert);
		EVP_PKEY_free(pkey);


	    } else {
		Tcl_SetResult(interp,"Error generating private key",NULL);
		return TCL_ERROR;
	    }
	}
	break;
    default:
	break;
    }
    return TCL_OK;







>
>
>
>
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>
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>
>
>
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>
>
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>
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>
>
>
>
>
>
>
|
|
|
>
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>



>
>
>





|
|














|


>
>
>




>
>
>
>
>
>
>
>
>
>
|
|
<
|
|
|
>


>
>
|
<
<







2589
2590
2591
2592
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2595
2596
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2601
2602
2603
2604
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2618
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2622
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2624
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2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
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2657
2658
2659
2660
2661
2662
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2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682

2683
2684
2685
2686
2687
2688
2689
2690
2691


2692
2693
2694
2695
2696
2697
2698
			k_Email=Tcl_GetString(listv[i+1]);
		    } else {
			Tcl_SetResult(interp,"Unknown parameter",NULL);
			return TCL_ERROR;
		    }
		}
	    }

#if OPENSSL_VERSION_NUMBER < 0x30000000L
	    bne = BN_new();
	    rsa = RSA_new();
	    pkey = EVP_PKEY_new();
	    if (bne == NULL || rsa == NULL || pkey == NULL || !BN_set_word(bne,RSA_F4) ||
		!RSA_generate_key_ex(rsa, keysize, bne, NULL) || !EVP_PKEY_assign_RSA(pkey, rsa)) {
		EVP_PKEY_free(pkey);
		/* RSA_free(rsa); freed by EVP_PKEY_free */
		BN_free(bne);
#else
	    pkey = EVP_RSA_gen((unsigned int) keysize);
	    ctx = EVP_PKEY_CTX_new(pkey,NULL);
	    if (pkey == NULL || ctx == NULL || !EVP_PKEY_keygen_init(ctx) ||
		!EVP_PKEY_CTX_set_rsa_keygen_bits(ctx, keysize) || !EVP_PKEY_keygen(ctx, &pkey)) {
		EVP_PKEY_free(pkey);
		EVP_PKEY_CTX_free(ctx);
#endif
		Tcl_SetResult(interp,"Error generating private key",NULL);
		return TCL_ERROR;
	    } else {
		if (isStr) {
		    out=BIO_new(BIO_s_mem());
		    PEM_write_bio_PrivateKey(out,pkey,NULL,NULL,0,NULL,NULL);
		    i=BIO_read(out,buffer,sizeof(buffer)-1);
		    i=(i<0) ? 0 : i;
		    buffer[i]='\0';
		    Tcl_SetVar(interp,keyout,buffer,0);
		    BIO_flush(out);
		    BIO_free(out);
		} else {
		    out=BIO_new(BIO_s_file());
		    BIO_write_filename(out,keyout);
		    PEM_write_bio_PrivateKey(out,pkey,NULL,NULL,0,NULL,NULL);
		    /* PEM_write_bio_RSAPrivateKey(out, rsa, NULL, NULL, 0, NULL, NULL); */
		    BIO_free_all(out);
	 	}

		if ((cert=X509_new())==NULL) {
		    Tcl_SetResult(interp,"Error generating certificate request",NULL);
		    EVP_PKEY_free(pkey);
#if OPENSSL_VERSION_NUMBER < 0x30000000L
		    BN_free(bne);
#endif
		    return(TCL_ERROR);
		}

		X509_set_version(cert,2);
		ASN1_INTEGER_set(X509_get_serialNumber(cert),serial);
		X509_gmtime_adj(X509_getm_notBefore(cert),0);
		X509_gmtime_adj(X509_getm_notAfter(cert),(long)60*60*24*days);
		X509_set_pubkey(cert,pkey);

		name=X509_get_subject_name(cert);

		X509_NAME_add_entry_by_txt(name,"C", MBSTRING_ASC, (unsigned char *) k_C, -1, -1, 0);
		X509_NAME_add_entry_by_txt(name,"ST", MBSTRING_ASC, (unsigned char *) k_ST, -1, -1, 0);
		X509_NAME_add_entry_by_txt(name,"L", MBSTRING_ASC, (unsigned char *) k_L, -1, -1, 0);
		X509_NAME_add_entry_by_txt(name,"O", MBSTRING_ASC, (unsigned char *) k_O, -1, -1, 0);
		X509_NAME_add_entry_by_txt(name,"OU", MBSTRING_ASC, (unsigned char *) k_OU, -1, -1, 0);
		X509_NAME_add_entry_by_txt(name,"CN", MBSTRING_ASC, (unsigned char *) k_CN, -1, -1, 0);
		X509_NAME_add_entry_by_txt(name,"Email", MBSTRING_ASC, (unsigned char *) k_Email, -1, -1, 0);

		X509_set_subject_name(cert,name);

		if (!X509_sign(cert,pkey,EVP_sha256())) {
		    X509_free(cert);
		    EVP_PKEY_free(pkey);
#if OPENSSL_VERSION_NUMBER < 0x30000000L
		    BN_free(bne);
#endif
		    Tcl_SetResult(interp,"Error signing certificate",NULL);
		    return TCL_ERROR;
		}

		if (isStr) {
		    out=BIO_new(BIO_s_mem());
		    PEM_write_bio_X509(out,cert);
		    i=BIO_read(out,buffer,sizeof(buffer)-1);
		    i=(i<0) ? 0 : i;
		    buffer[i]='\0';
		    Tcl_SetVar(interp,pemout,buffer,0);
		    BIO_flush(out);
		    BIO_free(out);
		} else {
		    out=BIO_new(BIO_s_file());
		    BIO_write_filename(out,pemout);

		    PEM_write_bio_X509(out,cert);
		    BIO_free_all(out);
		}

		X509_free(cert);
		EVP_PKEY_free(pkey);
#if OPENSSL_VERSION_NUMBER < 0x30000000L
		BN_free(bne);
#endif


	    }
	}
	break;
    default:
	break;
    }
    return TCL_OK;
1692
1693
1694
1695
1696
1697
1698




1699
1700
1701
1702
1703
1704
1705
     * we're assuming here that we're single-threaded
     */
    if (statePtr->timer != (Tcl_TimerToken) NULL) {
	Tcl_DeleteTimerHandler(statePtr->timer);
	statePtr->timer = NULL;
    }





    if (statePtr->bio) {
	/* This will call SSL_shutdown. Bug 1414045 */
	dprintf("BIO_free_all(%p)", statePtr->bio);
	BIO_free_all(statePtr->bio);
	statePtr->bio = NULL;
    }
    if (statePtr->ssl) {







>
>
>
>







2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
     * we're assuming here that we're single-threaded
     */
    if (statePtr->timer != (Tcl_TimerToken) NULL) {
	Tcl_DeleteTimerHandler(statePtr->timer);
	statePtr->timer = NULL;
    }

    if (statePtr->protos) {
	ckfree(statePtr->protos);
	statePtr->protos = NULL;
    }
    if (statePtr->bio) {
	/* This will call SSL_shutdown. Bug 1414045 */
	dprintf("BIO_free_all(%p)", statePtr->bio);
	BIO_free_all(statePtr->bio);
	statePtr->bio = NULL;
    }
    if (statePtr->ssl) {
1715
1716
1717
1718
1719
1720
1721




1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764

1765
1766
1767
1768
1769
1770

1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
	Tcl_DecrRefCount(statePtr->callback);
	statePtr->callback = NULL;
    }
    if (statePtr->password) {
	Tcl_DecrRefCount(statePtr->password);
	statePtr->password = NULL;
    }





    dprintf("Returning");
}

/*
 *-------------------------------------------------------------------
 *
 * Tls_Init --
 *
 *	This is a package initialization procedure, which is called
 *	by Tcl when this package is to be added to an interpreter.
 *
 * Results:  Ssl configured and loaded
 *
 * Side effects:
 *	 create the ssl command, initialise ssl context
 *
 *-------------------------------------------------------------------
 */

DLLEXPORT int Tls_Init(
    Tcl_Interp *interp)
{
    const char tlsTclInitScript[] = {
#include "tls.tcl.h"
	    0x00
    };

    dprintf("Called");

	/*
	 * We only support Tcl 8.6 or newer
	 */
    if (Tcl_InitStubs(interp, "8.6-", 0) == NULL) {
	return TCL_ERROR;
    }

    if (TlsLibInit(0) != TCL_OK) {
	Tcl_AppendResult(interp, "could not initialize SSL library", (char *)NULL);
	return TCL_ERROR;
    }

    Tcl_CreateObjCommand(interp, "tls::ciphers", CiphersObjCmd, NULL, 0);

    Tcl_CreateObjCommand(interp, "tls::handshake", HandshakeObjCmd, NULL, 0);
    Tcl_CreateObjCommand(interp, "tls::import", ImportObjCmd, NULL, 0);
    Tcl_CreateObjCommand(interp, "tls::unimport", UnimportObjCmd, NULL, 0);
    Tcl_CreateObjCommand(interp, "tls::status", StatusObjCmd, NULL, 0);
    Tcl_CreateObjCommand(interp, "tls::version", VersionObjCmd, NULL, 0);
    Tcl_CreateObjCommand(interp, "tls::misc", MiscObjCmd, NULL, 0);


    if (interp) {
	Tcl_Eval(interp, tlsTclInitScript);
    }

    return(Tcl_PkgProvide(interp, "tls", PACKAGE_VERSION));
}

/*
 *------------------------------------------------------*
 *
 *	Tls_SafeInit --
 *







>
>
>
>















|









|




<
<
<










>






>





|







2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821



2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
	Tcl_DecrRefCount(statePtr->callback);
	statePtr->callback = NULL;
    }
    if (statePtr->password) {
	Tcl_DecrRefCount(statePtr->password);
	statePtr->password = NULL;
    }
    if (statePtr->vcmd) {
	Tcl_DecrRefCount(statePtr->vcmd);
	statePtr->vcmd = NULL;
    }

    dprintf("Returning");
}

/*
 *-------------------------------------------------------------------
 *
 * Tls_Init --
 *
 *	This is a package initialization procedure, which is called
 *	by Tcl when this package is to be added to an interpreter.
 *
 * Results:  Ssl configured and loaded
 *
 * Side effects:
 *	 create the ssl command, initialize ssl context
 *
 *-------------------------------------------------------------------
 */

DLLEXPORT int Tls_Init(
    Tcl_Interp *interp)
{
    const char tlsTclInitScript[] = {
#include "tls.tcl.h"
	0x00
    };

    dprintf("Called");




    if (Tcl_InitStubs(interp, "8.6-", 0) == NULL) {
	return TCL_ERROR;
    }

    if (TlsLibInit(0) != TCL_OK) {
	Tcl_AppendResult(interp, "could not initialize SSL library", (char *)NULL);
	return TCL_ERROR;
    }

    Tcl_CreateObjCommand(interp, "tls::ciphers", CiphersObjCmd, NULL, 0);
    Tcl_CreateObjCommand(interp, "tls::connection", ConnectionInfoObjCmd, NULL, 0);
    Tcl_CreateObjCommand(interp, "tls::handshake", HandshakeObjCmd, NULL, 0);
    Tcl_CreateObjCommand(interp, "tls::import", ImportObjCmd, NULL, 0);
    Tcl_CreateObjCommand(interp, "tls::unimport", UnimportObjCmd, NULL, 0);
    Tcl_CreateObjCommand(interp, "tls::status", StatusObjCmd, NULL, 0);
    Tcl_CreateObjCommand(interp, "tls::version", VersionObjCmd, NULL, 0);
    Tcl_CreateObjCommand(interp, "tls::misc", MiscObjCmd, NULL, 0);
    Tcl_CreateObjCommand(interp, "tls::protocols", ProtocolsObjCmd, NULL, 0);

    if (interp) {
	Tcl_Eval(interp, tlsTclInitScript);
    }

    return Tcl_PkgProvide(interp, PACKAGE_NAME, PACKAGE_VERSION);
}

/*
 *------------------------------------------------------*
 *
 *	Tls_SafeInit --
 *
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
	}

	dprintf("Asked to uninitialize");

#if defined(OPENSSL_THREADS) && defined(TCL_THREADS)
	Tcl_MutexLock(&init_mx);

	CRYPTO_set_locking_callback(NULL);
	CRYPTO_set_id_callback(NULL);

	if (locks) {
	    free(locks);
	    locks = NULL;
	    locksCount = 0;
	}
#endif
	initialized = 0;







<
<
<







2901
2902
2903
2904
2905
2906
2907



2908
2909
2910
2911
2912
2913
2914
	}

	dprintf("Asked to uninitialize");

#if defined(OPENSSL_THREADS) && defined(TCL_THREADS)
	Tcl_MutexLock(&init_mx);




	if (locks) {
	    free(locks);
	    locks = NULL;
	    locksCount = 0;
	}
#endif
	initialized = 0;
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885

1886
1887
1888
1889
1890
1891
1892
1893
1894
1895

#if defined(OPENSSL_THREADS) && defined(TCL_THREADS)
    Tcl_MutexLock(&init_mx);
#endif
    initialized = 1;

#if defined(OPENSSL_THREADS) && defined(TCL_THREADS)
    num_locks = CRYPTO_num_locks();
    locksCount = num_locks;
    locks = malloc(sizeof(*locks) * num_locks);
    memset(locks, 0, sizeof(*locks) * num_locks);

    CRYPTO_set_locking_callback(CryptoThreadLockCallback);
    CRYPTO_set_id_callback(CryptoThreadIdCallback);
#endif

    if (SSL_library_init() != 1) {
	status = TCL_ERROR;
	goto done;
    }

    SSL_load_error_strings();
    ERR_load_crypto_strings();


    BIO_new_tcl(NULL, 0);

done:
#if defined(OPENSSL_THREADS) && defined(TCL_THREADS)
    Tcl_MutexUnlock(&init_mx);
#endif

    return(status);
}







|
|


<
<
<


<
<
|
<
|
<
<
>



<






2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939



2940
2941


2942

2943


2944
2945
2946
2947

2948
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#if defined(OPENSSL_THREADS) && defined(TCL_THREADS)
    Tcl_MutexLock(&init_mx);
#endif
    initialized = 1;

#if defined(OPENSSL_THREADS) && defined(TCL_THREADS)
    num_locks = 1;
    locksCount = (int) num_locks;
    locks = malloc(sizeof(*locks) * num_locks);
    memset(locks, 0, sizeof(*locks) * num_locks);



#endif



    /* Initialize BOTH libcrypto and libssl. */

    OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS | OPENSSL_INIT_LOAD_CRYPTO_STRINGS


	| OPENSSL_INIT_ADD_ALL_CIPHERS | OPENSSL_INIT_ADD_ALL_DIGESTS, NULL);

    BIO_new_tcl(NULL, 0);


#if defined(OPENSSL_THREADS) && defined(TCL_THREADS)
    Tcl_MutexUnlock(&init_mx);
#endif

    return(status);
}

Modified generic/tlsBIO.c from [1f5961558a] to [e2553f33f8].

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/*
 * Copyright (C) 1997-2000 Matt Newman <[email protected]>
 *
 * Provides BIO layer to interface OpenSSL to Tcl.
 */

#include "tlsInt.h"

#ifdef TCLTLS_OPENSSL_PRE_1_1_API
#define BIO_get_data(bio)                ((bio)->ptr)
#define BIO_get_init(bio)                ((bio)->init)
#define BIO_get_shutdown(bio)            ((bio)->shutdown)
#define BIO_set_data(bio, val)           (bio)->ptr = (val)
#define BIO_set_init(bio, val)           (bio)->init = (val)
#define BIO_set_shutdown(bio, val)       (bio)->shutdown = (val)

/* XXX: This assumes the variable being assigned to is BioMethods */
#define BIO_meth_new(type_, name_)       (BIO_METHOD *)Tcl_Alloc(sizeof(BIO_METHOD)); \
                                         memset(BioMethods, 0, sizeof(BIO_METHOD)); \
                                         BioMethods->type = type_; \
                                         BioMethods->name = name_;
#define BIO_meth_set_write(bio, val)     (bio)->bwrite = val;
#define BIO_meth_set_read(bio, val)      (bio)->bread = val;
#define BIO_meth_set_puts(bio, val)      (bio)->bputs = val;
#define BIO_meth_set_ctrl(bio, val)      (bio)->ctrl = val;
#define BIO_meth_set_create(bio, val)    (bio)->create = val;
#define BIO_meth_set_destroy(bio, val)   (bio)->destroy = val;
#endif

/*
 * Forward declarations
 */

static int BioWrite (BIO *h, const char *buf, int num);
static int BioRead  (BIO *h, char *buf, int num);
static int BioPuts  (BIO *h, const char *str);
static long BioCtrl (BIO *h, int cmd, long arg1, void *ptr);
static int BioNew   (BIO *h);
static int BioFree  (BIO *h);

BIO *BIO_new_tcl(
    State *statePtr,
    int flags)
{
    BIO *bio;
    static BIO_METHOD *BioMethods = NULL;
#ifdef TCLTLS_SSL_USE_FASTPATH
    Tcl_Channel parentChannel;
    const Tcl_ChannelType *parentChannelType;
    void *parentChannelFdIn_p, *parentChannelFdOut_p;
    int parentChannelFdIn, parentChannelFdOut, parentChannelFd;
    int validParentChannelFd;
    int tclGetChannelHandleRet;
#endif

    dprintf("BIO_new_tcl() called");

    if (BioMethods == NULL) {
	BioMethods = BIO_meth_new(BIO_TYPE_TCL, "tcl");
	BIO_meth_set_write(BioMethods, BioWrite);
	BIO_meth_set_read(BioMethods, BioRead);
	BIO_meth_set_puts(BioMethods, BioPuts);
	BIO_meth_set_ctrl(BioMethods, BioCtrl);
	BIO_meth_set_create(BioMethods, BioNew);
	BIO_meth_set_destroy(BioMethods, BioFree);
    }

    if (statePtr == NULL) {
	dprintf("Asked to setup a NULL state, just creating the initial configuration");

	return(NULL);
    }

#ifdef TCLTLS_SSL_USE_FASTPATH
    /*
     * If the channel can be mapped back to a file descriptor, just use the file descriptor
     * with the SSL library since it will likely be optimized for this.
     */
    parentChannel = Tls_GetParent(statePtr, 0);
    parentChannelType = Tcl_GetChannelType(parentChannel);

    validParentChannelFd = 0;
    if (strcmp(parentChannelType->typeName, "tcp") == 0) {
	tclGetChannelHandleRet = Tcl_GetChannelHandle(parentChannel, TCL_READABLE, &parentChannelFdIn_p);
	if (tclGetChannelHandleRet == TCL_OK) {
	    tclGetChannelHandleRet = Tcl_GetChannelHandle(parentChannel, TCL_WRITABLE, &parentChannelFdOut_p);
	    if (tclGetChannelHandleRet == TCL_OK) {
		parentChannelFdIn = PTR2INT(parentChannelFdIn_p);
		parentChannelFdOut = PTR2INT(parentChannelFdOut_p);
		if (parentChannelFdIn == parentChannelFdOut) {
		    parentChannelFd = parentChannelFdIn;
		    validParentChannelFd = 1;
		}
	    }
	}
    }

    if (validParentChannelFd) {
	dprintf("We found a shortcut, this channel is backed by a socket: %i", parentChannelFdIn);
	bio = BIO_new_socket(parentChannelFd, flags);
	statePtr->flags |= TLS_TCL_FASTPATH;
	return(bio);
    }

    dprintf("Falling back to Tcl I/O for this channel");
#endif

    bio = BIO_new(BioMethods);
    BIO_set_data(bio, statePtr);
    BIO_set_shutdown(bio, flags);
    BIO_set_init(bio, 1);
    return(bio);
}

static int BioWrite(BIO *bio, const char *buf, int bufLen) {
    Tcl_Channel chan;
    int ret;
    int tclEofChan, tclErrno;

    chan = Tls_GetParent((State *) BIO_get_data(bio), 0);

    dprintf("[chan=%p] BioWrite(%p, <buf>, %d)", (void *)chan, (void *) bio, bufLen);

    ret = Tcl_WriteRaw(chan, buf, bufLen);

    tclEofChan = Tcl_Eof(chan);
    tclErrno = Tcl_GetErrno();


    dprintf("[chan=%p] BioWrite(%d) -> %d [tclEof=%d; tclErrno=%d]", (void *) chan, bufLen, ret, tclEofChan, Tcl_GetErrno());

    BIO_clear_flags(bio, BIO_FLAGS_WRITE | BIO_FLAGS_SHOULD_RETRY);

    if (tclEofChan && ret <= 0) {
	dprintf("Got EOF while reading, returning a Connection Reset error which maps to Soft EOF");
	Tcl_SetErrno(ECONNRESET);
	ret = 0;
    } else if (ret == 0) {
	dprintf("Got 0 from Tcl_WriteRaw, and EOF is not set; ret = 0");
	dprintf("Setting retry read flag");
	BIO_set_retry_read(bio);
    } else if (ret < 0) {
	dprintf("We got some kind of I/O error");

	if (tclErrno == EAGAIN) {
	    dprintf("It's EAGAIN");
	} else {
	    dprintf("It's an unexpected error: %s/%i", Tcl_ErrnoMsg(tclErrno), tclErrno);
	}
    } else {
	dprintf("Successfully wrote some data");
    }

    if (ret != -1 || (ret == -1 && tclErrno == EAGAIN)) {
	if (BIO_should_read(bio)) {
	    dprintf("Setting should retry read flag");

	    BIO_set_retry_read(bio);
	}
    }
    return(ret);
}

/* Called by SSL_read()*/
static int BioRead(BIO *bio, char *buf, int bufLen) {
    Tcl_Channel chan;
    int ret = 0;
    int tclEofChan, tclErrno;

    chan = Tls_GetParent((State *) BIO_get_data(bio), 0);

    dprintf("[chan=%p] BioRead(%p, <buf>, %d)", (void *) chan, (void *) bio, bufLen);

    if (buf == NULL) {
	return 0;
    }

    ret = Tcl_ReadRaw(chan, buf, bufLen);

    tclEofChan = Tcl_Eof(chan);
    tclErrno = Tcl_GetErrno();


    dprintf("[chan=%p] BioRead(%d) -> %d [tclEof=%d; tclErrno=%d]", (void *) chan, bufLen, ret, tclEofChan, tclErrno);

    BIO_clear_flags(bio, BIO_FLAGS_READ | BIO_FLAGS_SHOULD_RETRY);

    if (tclEofChan && ret <= 0) {
	dprintf("Got EOF while reading, returning a Connection Reset error which maps to Soft EOF");
	Tcl_SetErrno(ECONNRESET);
	ret = 0;
    } else if (ret == 0) {
	dprintf("Got 0 from Tcl_Read or Tcl_ReadRaw, and EOF is not set; ret = 0");
	dprintf("Setting retry read flag");
	BIO_set_retry_read(bio);
    } else if (ret < 0) {
	dprintf("We got some kind of I/O error");

	if (tclErrno == EAGAIN) {
	    dprintf("It's EAGAIN");
	} else {
	    dprintf("It's an unexpected error: %s/%i", Tcl_ErrnoMsg(tclErrno), tclErrno);
	}
    } else {
	dprintf("Successfully read some data");
    }

    if (ret != -1 || (ret == -1 && tclErrno == EAGAIN)) {
	if (BIO_should_write(bio)) {
	    dprintf("Setting should retry write flag");

	    BIO_set_retry_write(bio);
	}
    }

    dprintf("BioRead(%p, <buf>, %d) [%p] returning %i", (void *) bio, bufLen, (void *) chan, ret);


    return(ret);
}

static int BioPuts(BIO *bio, const char *str) {
    dprintf("BioPuts(%p, <string:%p>) called", bio, str);

    return BioWrite(bio, str, (int) strlen(str));
}








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/*
 * Copyright (C) 1997-2000 Matt Newman <[email protected]>
 *
 * Provides BIO layer to interface OpenSSL to Tcl.
 */

#include "tlsInt.h"








/* Called by SSL_write() */


































































































static int BioWrite(BIO *bio, const char *buf, int bufLen) {
    Tcl_Channel chan;
    Tcl_Size ret;
    int tclEofChan, tclErrno;

    chan = Tls_GetParent((State *) BIO_get_data(bio), 0);

    dprintf("[chan=%p] BioWrite(%p, <buf>, %d)", (void *)chan, (void *) bio, bufLen);

    ret = Tcl_WriteRaw(chan, buf, (Tcl_Size)bufLen);

    tclEofChan = Tcl_Eof(chan);
    tclErrno = Tcl_GetErrno();

    dprintf("[chan=%p] BioWrite(%d) -> %" TCL_SIZE_MODIFIER "d [tclEof=%d; tclErrno=%d]",
	    (void *) chan, bufLen, ret, tclEofChan, tclErrno);

    BIO_clear_flags(bio, BIO_FLAGS_WRITE | BIO_FLAGS_SHOULD_RETRY);

    if (tclEofChan && ret <= 0) {
	dprintf("Got EOF while reading, returning a Connection Reset error which maps to Soft EOF");
	Tcl_SetErrno(ECONNRESET);
	ret = 0;
    } else if (ret == 0) {
	dprintf("Got 0 from Tcl_WriteRaw, and EOF is not set; ret = 0");
	dprintf("Setting retry read flag");
	BIO_set_retry_read(bio);
    } else if (ret < 0) {
	dprintf("We got some kind of I/O error");

	if (tclErrno == EAGAIN) {
	    dprintf("It's EAGAIN");
	} else {
	    dprintf("It's an unexpected error: %s/%i", Tcl_ErrnoMsg(tclErrno), tclErrno);
	}
    } else {
	dprintf("Successfully wrote %" TCL_SIZE_MODIFIER "d bytes of data", ret);
    }

    if (ret != -1 || (ret == -1 && tclErrno == EAGAIN)) {
	if (BIO_should_read(bio)) {
	    dprintf("Setting should retry read flag");

	    BIO_set_retry_read(bio);
	}
    }
    return((int) ret);
}

/* Called by SSL_read()*/
static int BioRead(BIO *bio, char *buf, int bufLen) {
    Tcl_Channel chan;
    Tcl_Size ret = 0;
    int tclEofChan, tclErrno;

    chan = Tls_GetParent((State *) BIO_get_data(bio), 0);

    dprintf("[chan=%p] BioRead(%p, <buf>, %d)", (void *) chan, (void *) bio, bufLen);

    if (buf == NULL) {
	return 0;
    }

    ret = Tcl_ReadRaw(chan, buf, (Tcl_Size)bufLen);

    tclEofChan = Tcl_Eof(chan);
    tclErrno = Tcl_GetErrno();

    dprintf("[chan=%p] BioRead(%d) -> %" TCL_SIZE_MODIFIER "d [tclEof=%d; tclErrno=%d]",
	    (void *) chan, bufLen, ret, tclEofChan, tclErrno);

    BIO_clear_flags(bio, BIO_FLAGS_READ | BIO_FLAGS_SHOULD_RETRY);

    if (tclEofChan && ret <= 0) {
	dprintf("Got EOF while reading, returning a Connection Reset error which maps to Soft EOF");
	Tcl_SetErrno(ECONNRESET);
	ret = 0;
    } else if (ret == 0) {
	dprintf("Got 0 from Tcl_Read or Tcl_ReadRaw, and EOF is not set; ret = 0");
	dprintf("Setting retry read flag");
	BIO_set_retry_read(bio);
    } else if (ret < 0) {
	dprintf("We got some kind of I/O error");

	if (tclErrno == EAGAIN) {
	    dprintf("It's EAGAIN");
	} else {
	    dprintf("It's an unexpected error: %s/%i", Tcl_ErrnoMsg(tclErrno), tclErrno);
	}
    } else {
	dprintf("Successfully read %" TCL_SIZE_MODIFIER "d bytes of data", ret);
    }

    if (ret != -1 || (ret == -1 && tclErrno == EAGAIN)) {
	if (BIO_should_write(bio)) {
	    dprintf("Setting should retry write flag");

	    BIO_set_retry_write(bio);
	}
    }

    dprintf("BioRead(%p, <buf>, %d) [%p] returning %" TCL_SIZE_MODIFIER "d",
	    (void *)bio, bufLen, (void *) chan, ret);

    return (int)ret;
}

static int BioPuts(BIO *bio, const char *str) {
    dprintf("BioPuts(%p, <string:%p>) called", bio, str);

    return BioWrite(bio, str, (int) strlen(str));
}
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		break;
	case BIO_CTRL_SET_CLOSE:
		dprintf("Got BIO_SET_CLOSE");
		BIO_set_shutdown(bio, num);
		break;
	case BIO_CTRL_EOF:
		dprintf("Got BIO_CTRL_EOF");
		ret = Tcl_Eof(chan);
		break;
	case BIO_CTRL_PENDING:
		dprintf("Got BIO_CTRL_PENDING");
		ret = ((chan) ? Tcl_InputBuffered(chan) : 0);
		dprintf("BIO_CTRL_PENDING(%d)", (int) ret);
		break;
	case BIO_CTRL_WPENDING:
		dprintf("Got BIO_CTRL_WPENDING");
		ret = 0;
		break;
	case BIO_CTRL_DUP:
		dprintf("Got BIO_CTRL_DUP");
		break;
	case BIO_CTRL_FLUSH:
		dprintf("Got BIO_CTRL_FLUSH");
		ret = ((Tcl_WriteRaw(chan, "", 0) >= 0) ? 1 : -1);
		dprintf("BIO_CTRL_FLUSH returning value %li", ret);
















		break;
#ifdef BIO_CTRL_GET_KTLS_SEND
	case BIO_CTRL_GET_KTLS_SEND:
		dprintf("Got BIO_CTRL_GET_KTLS_SEND");
		ret = 0;
		break;
#endif
#ifdef BIO_CTRL_GET_KTLS_RECV
	case BIO_CTRL_GET_KTLS_RECV:
		dprintf("Got BIO_CTRL_GET_KTLS_RECV");
		ret = 0;
		break;
#endif
	default:
		dprintf("Got unknown control command (%i)", cmd);
		ret = -2;
		break;
    }

    return(ret);
}

static int BioNew(BIO *bio) {
    dprintf("BioNew(%p) called", bio);

    BIO_set_init(bio, 0);
    BIO_set_data(bio, NULL);
    BIO_clear_flags(bio, -1);

    return(1);
}

static int BioFree(BIO *bio) {
    if (bio == NULL) {
	return(0);
    }

    dprintf("BioFree(%p) called", bio);

    if (BIO_get_shutdown(bio)) {
	if (BIO_get_init(bio)) {
	    /*shutdown(bio->num, 2) */
	    /*closesocket(bio->num) */
	}

	BIO_set_init(bio, 0);
	BIO_clear_flags(bio, -1);
    }






























    return(1);
}
















































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		break;
	case BIO_CTRL_SET_CLOSE:
		dprintf("Got BIO_SET_CLOSE");
		BIO_set_shutdown(bio, num);
		break;
	case BIO_CTRL_EOF:
		dprintf("Got BIO_CTRL_EOF");
		ret = ((chan) ? Tcl_Eof(chan) : 1);
		break;
	case BIO_CTRL_PENDING:
		dprintf("Got BIO_CTRL_PENDING");
		ret = ((chan) ? ((Tcl_InputBuffered(chan) ? 1 : 0)) : 0);
		dprintf("BIO_CTRL_PENDING(%d)", (int) ret);
		break;
	case BIO_CTRL_WPENDING:
		dprintf("Got BIO_CTRL_WPENDING");
		ret = 0;
		break;
	case BIO_CTRL_DUP:
		dprintf("Got BIO_CTRL_DUP");
		break;
	case BIO_CTRL_FLUSH:
		dprintf("Got BIO_CTRL_FLUSH");
		ret = ((chan) && (Tcl_WriteRaw(chan, "", 0) >= 0) ? 1 : -1);
		dprintf("BIO_CTRL_FLUSH returning value %li", ret);
		break;
	case BIO_CTRL_PUSH:
		dprintf("Got BIO_CTRL_PUSH");
		ret = 0;
		break;
	case BIO_CTRL_POP:
		dprintf("Got BIO_CTRL_POP");
		ret = 0;
		break;
	case BIO_CTRL_SET:
		dprintf("Got BIO_CTRL_SET");
		ret = 0;
		break;
	case BIO_CTRL_GET :
		dprintf("Got BIO_CTRL_GET ");
		ret = 0;
		break;
#ifdef BIO_CTRL_GET_KTLS_SEND
	case BIO_CTRL_GET_KTLS_SEND:
		dprintf("Got BIO_CTRL_GET_KTLS_SEND");
		ret = 0;
		break;
#endif
#ifdef BIO_CTRL_GET_KTLS_RECV
	case BIO_CTRL_GET_KTLS_RECV:
		dprintf("Got BIO_CTRL_GET_KTLS_RECV");
		ret = 0;
		break;
#endif
	default:
		dprintf("Got unknown control command (%i)", cmd);
		ret = -2;
		break;
    }

    return ret;
}

static int BioNew(BIO *bio) {
    dprintf("BioNew(%p) called", bio);

    BIO_set_init(bio, 0);
    BIO_set_data(bio, NULL);
    BIO_clear_flags(bio, -1);

    return 1;
}

static int BioFree(BIO *bio) {
    if (bio == NULL) {
	return(0);
    }

    dprintf("BioFree(%p) called", bio);

    if (BIO_get_shutdown(bio)) {
	if (BIO_get_init(bio)) {
	    /*shutdown(bio->num, 2) */
	    /*closesocket(bio->num) */
	}

	BIO_set_init(bio, 0);
	BIO_clear_flags(bio, -1);
    }
    return 1;
}

BIO *BIO_new_tcl(State *statePtr, int flags) {
    BIO *bio;
    static BIO_METHOD *BioMethods = NULL;
#ifdef TCLTLS_SSL_USE_FASTPATH
    Tcl_Channel parentChannel;
    const Tcl_ChannelType *parentChannelType;
    void *parentChannelFdIn_p, *parentChannelFdOut_p;
    int parentChannelFdIn, parentChannelFdOut, parentChannelFd;
    int validParentChannelFd;
    int tclGetChannelHandleRet;
#endif

    dprintf("BIO_new_tcl() called");

    if (BioMethods == NULL) {
	BioMethods = BIO_meth_new(BIO_TYPE_TCL, "tcl");
	BIO_meth_set_write(BioMethods, BioWrite);
	BIO_meth_set_read(BioMethods, BioRead);
	BIO_meth_set_puts(BioMethods, BioPuts);
	BIO_meth_set_ctrl(BioMethods, BioCtrl);
	BIO_meth_set_create(BioMethods, BioNew);
	BIO_meth_set_destroy(BioMethods, BioFree);
    }

    if (statePtr == NULL) {
	dprintf("Asked to setup a NULL state, just creating the initial configuration");

	return(NULL);
    }

#ifdef TCLTLS_SSL_USE_FASTPATH
    /*
     * If the channel can be mapped back to a file descriptor, just use the file descriptor
     * with the SSL library since it will likely be optimized for this.
     */
    parentChannel = Tls_GetParent(statePtr, 0);
    parentChannelType = Tcl_GetChannelType(parentChannel);

    validParentChannelFd = 0;
    if (strcmp(parentChannelType->typeName, "tcp") == 0) {
	tclGetChannelHandleRet = Tcl_GetChannelHandle(parentChannel, TCL_READABLE, (ClientData) &parentChannelFdIn_p);
	if (tclGetChannelHandleRet == TCL_OK) {
	    tclGetChannelHandleRet = Tcl_GetChannelHandle(parentChannel, TCL_WRITABLE, (ClientData) &parentChannelFdOut_p);
	    if (tclGetChannelHandleRet == TCL_OK) {
		parentChannelFdIn = PTR2INT(parentChannelFdIn_p);
		parentChannelFdOut = PTR2INT(parentChannelFdOut_p);
		if (parentChannelFdIn == parentChannelFdOut) {
		    parentChannelFd = parentChannelFdIn;
		    validParentChannelFd = 1;
		}
	    }
	}
    }

    if (validParentChannelFd) {
	dprintf("We found a shortcut, this channel is backed by a socket: %i", parentChannelFdIn);
	bio = BIO_new_socket(parentChannelFd, flags);
	statePtr->flags |= TLS_TCL_FASTPATH;
	return(bio);
    }

    dprintf("Falling back to Tcl I/O for this channel");
#endif

    bio = BIO_new(BioMethods);
    BIO_set_data(bio, statePtr);
    BIO_set_shutdown(bio, flags);
    BIO_set_init(bio, 1);
    return(bio);
}

Modified generic/tlsIO.c from [46ff3e28a8] to [41f450ae51].

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 * Also work done by the follow people provided the impetus to do this "right":
 *    tclSSL (Colin McCormack, Shared Technology)
 *    SSLtcl (Peter Antman)
 *
 */

#include "tlsInt.h"


/*
 * Forward declarations
 */
static void TlsChannelHandlerTimer(void *clientData);

/*







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 * Also work done by the follow people provided the impetus to do this "right":
 *    tclSSL (Colin McCormack, Shared Technology)
 *    SSLtcl (Peter Antman)
 *
 */

#include "tlsInt.h"
#include <errno.h>

/*
 * Forward declarations
 */
static void TlsChannelHandlerTimer(void *clientData);

/*
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 *
 *-------------------------------------------------------------------
 */
static int TlsCloseProc(
    void *instanceData,
    TCL_UNUSED(Tcl_Interp *))
{
    State *statePtr = (State *) instanceData;

    dprintf("TlsCloseProc(%p)", statePtr);

    Tls_Clean(statePtr);
    Tcl_EventuallyFree(statePtr, Tls_Free);
    return TCL_OK;
}

static int TlsClose2Proc(
    void *instanceData,    /* The socket state. */
    Tcl_Interp *interp,		/* For errors - can be NULL. */
    int flags)			/* Flags to close read and/or write side of channel */
{


    if (!(flags&(TCL_CLOSE_READ|TCL_CLOSE_WRITE))) {
	return TlsCloseProc(instanceData, interp);
    }
    return EINVAL;
}

/*
 *------------------------------------------------------*







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 *
 *-------------------------------------------------------------------
 */
static int TlsCloseProc(
    void *instanceData,
    TCL_UNUSED(Tcl_Interp *))
{
    State *statePtr = (State *)instanceData;

    dprintf("TlsCloseProc(%p)", statePtr);

    Tls_Clean(statePtr);
    Tcl_EventuallyFree(statePtr, Tls_Free);
    return TCL_OK;
}

static int TlsClose2Proc(
    void *instanceData,    /* The socket state. */
    Tcl_Interp *interp,		/* For errors - can be NULL. */
    int flags)			/* Flags to close read and/or write side of channel */
{
    dprintf("TlsClose2Proc(%p)", instanceData);

    if (!(flags & (TCL_CLOSE_READ|TCL_CLOSE_WRITE))) {
	return TlsCloseProc(instanceData, interp);
    }
    return EINVAL;
}

/*
 *------------------------------------------------------*
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 *
 *------------------------------------------------------*
 */
int Tls_WaitForConnect(State *statePtr, int *errorCodePtr, int handshakeFailureIsPermanent) {
    unsigned long backingError;
    int err, rc;
    int bioShouldRetry;


    dprintf("WaitForConnect(%p)", statePtr);
    dprintFlags(statePtr);

    if (!(statePtr->flags & TLS_TCL_INIT)) {
	dprintf("Tls_WaitForConnect called on already initialized channel -- returning with immediate success");
	*errorCodePtr = 0;
	return(0);
    }

    if (statePtr->flags & TLS_TCL_HANDSHAKE_FAILED) {
	/*
	 * Different types of operations have different requirements
	 * SSL being established
	 */
	if (handshakeFailureIsPermanent) {
	    dprintf("Asked to wait for a TLS handshake that has already failed.  Returning fatal error");
	    *errorCodePtr = ECONNABORTED;
	} else {
	    dprintf("Asked to wait for a TLS handshake that has already failed.  Returning soft error");
	    *errorCodePtr = ECONNRESET;
	}

	return(-1);
    }

    for (;;) {


	/* Not initialized yet! */
	if (statePtr->flags & TLS_TCL_SERVER) {
	    dprintf("Calling SSL_accept()");

		err = SSL_accept(statePtr->ssl);
	} else {
	    dprintf("Calling SSL_connect()");
	    err = SSL_connect(statePtr->ssl);
	}

	if (err > 0) {
	    dprintf("That seems to have gone okay");

	    err = BIO_flush(statePtr->bio);
	    if (err <= 0) {
		dprintf("Flushing the lower layers failed, this will probably terminate this session");
	    }


	}

	rc = SSL_get_error(statePtr->ssl, err);


	dprintf("Got error: %i (rc = %i)", err, rc);



	bioShouldRetry = 0;
	if (err <= 0) {
	    if (rc == SSL_ERROR_WANT_CONNECT || rc == SSL_ERROR_WANT_ACCEPT || rc == SSL_ERROR_WANT_READ || rc == SSL_ERROR_WANT_WRITE) {
		bioShouldRetry = 1;
	    } else if (BIO_should_retry(statePtr->bio)) {
		bioShouldRetry = 1;







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 *
 *------------------------------------------------------*
 */
int Tls_WaitForConnect(State *statePtr, int *errorCodePtr, int handshakeFailureIsPermanent) {
    unsigned long backingError;
    int err, rc;
    int bioShouldRetry;
    *errorCodePtr = 0;

    dprintf("WaitForConnect(%p)", statePtr);
    dprintFlags(statePtr);

    if (!(statePtr->flags & TLS_TCL_INIT)) {
	dprintf("Tls_WaitForConnect called on already initialized channel -- returning with immediate success");

	return(0);
    }

    if (statePtr->flags & TLS_TCL_HANDSHAKE_FAILED) {
	/*
	 * Different types of operations have different requirements
	 * SSL being established
	 */
	if (handshakeFailureIsPermanent) {
	    dprintf("Asked to wait for a TLS handshake that has already failed.  Returning fatal error");
	    *errorCodePtr = ECONNABORTED;
	} else {
	    dprintf("Asked to wait for a TLS handshake that has already failed.  Returning soft error");
	    *errorCodePtr = ECONNRESET;
	}
	Tls_Error(statePtr, "Wait for failed handshake");
	return(-1);
    }

    for (;;) {
	ERR_clear_error();

	/* Not initialized yet! Also calls SSL_do_handshake. */
	if (statePtr->flags & TLS_TCL_SERVER) {
	    dprintf("Calling SSL_accept()");

	    err = SSL_accept(statePtr->ssl);
	} else {
	    dprintf("Calling SSL_connect()");
	    err = SSL_connect(statePtr->ssl);
	}

	if (err > 0) {
	    dprintf("Accept or connect was successful");

	    err = BIO_flush(statePtr->bio);
	    if (err <= 0) {
		dprintf("Flushing the lower layers failed, this will probably terminate this session");
	    }
	} else {
	    dprintf("Accept or connect failed");
	}

	rc = SSL_get_error(statePtr->ssl, err);
	backingError = ERR_get_error();
	if (rc != SSL_ERROR_NONE) {
	    dprintf("Got error: %i (rc = %i)", err, rc);
	    dprintf("Got error: %s", ERR_reason_error_string(backingError));
	}

	bioShouldRetry = 0;
	if (err <= 0) {
	    if (rc == SSL_ERROR_WANT_CONNECT || rc == SSL_ERROR_WANT_ACCEPT || rc == SSL_ERROR_WANT_READ || rc == SSL_ERROR_WANT_WRITE) {
		bioShouldRetry = 1;
	    } else if (BIO_should_retry(statePtr->bio)) {
		bioShouldRetry = 1;
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	if (bioShouldRetry) {
	    dprintf("The I/O did not complete -- but we should try it again");

	    if (statePtr->flags & TLS_TCL_ASYNC) {
		dprintf("Returning EAGAIN so that it can be retried later");
		*errorCodePtr = EAGAIN;

		return(-1);
	    } else {
		dprintf("Doing so now");
		continue;
	    }
	}

	dprintf("We have either completely established the session or completely failed it -- there is no more need to ever retry it though");
	break;
    }


    *errorCodePtr = EINVAL;

    switch (rc) {
	case SSL_ERROR_NONE:
	    /* The connection is up, we are done here */
	    dprintf("The connection is up");

	    break;

	case SSL_ERROR_ZERO_RETURN:

	    dprintf("SSL_ERROR_ZERO_RETURN: Connect returned an invalid value...")


	    return(-1);

	case SSL_ERROR_SYSCALL:
	    backingError = ERR_get_error();


	    if (backingError == 0 && err == 0) {
		dprintf("EOF reached")
		*errorCodePtr = ECONNRESET;


	    } else if (backingError == 0 && err == -1) {
		dprintf("I/O error occurred (errno = %lu)", (unsigned long) Tcl_GetErrno());
		*errorCodePtr = Tcl_GetErrno();
		if (*errorCodePtr == ECONNRESET) {
		    *errorCodePtr = ECONNABORTED;
		}


	    } else {
		dprintf("I/O error occurred (backingError = %lu)", backingError);
		*errorCodePtr = backingError;
		if (*errorCodePtr == ECONNRESET) {
		    *errorCodePtr = ECONNABORTED;
		}

		}

		statePtr->flags |= TLS_TCL_HANDSHAKE_FAILED;

		return(-1);

	case SSL_ERROR_SSL:

	    dprintf("Got permanent fatal SSL error, aborting immediately");




		Tls_Error(statePtr, (char *)ERR_reason_error_string(ERR_get_error()));

	    statePtr->flags |= TLS_TCL_HANDSHAKE_FAILED;
	    *errorCodePtr = ECONNABORTED;
	    return(-1);




	case SSL_ERROR_WANT_CONNECT:
	case SSL_ERROR_WANT_ACCEPT:
	case SSL_ERROR_WANT_X509_LOOKUP:


	default:

	    dprintf("We got a confusing reply: %i", rc);
	    *errorCodePtr = Tcl_GetErrno();
	    dprintf("ERR(%d, %d) ", rc, *errorCodePtr);
	    return(-1);
    }

#if 0
    if (statePtr->flags & TLS_TCL_SERVER) {
	dprintf("This is an TLS server, checking the certificate for the peer");

	err = SSL_get_verify_result(statePtr->ssl);
	if (err != X509_V_OK) {
		dprintf("Invalid certificate, returning in failure");

		Tls_Error(statePtr, (char *)X509_verify_cert_error_string(err));
		statePtr->flags |= TLS_TCL_HANDSHAKE_FAILED;
		*errorCodePtr = ECONNABORTED;
		return(-1);
	}
    }
#endif

    dprintf("Removing the \"TLS_TCL_INIT\" flag since we have completed the handshake");
    statePtr->flags &= ~TLS_TCL_INIT;

    dprintf("Returning in success");
    *errorCodePtr = 0;
    return 0;







>











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	if (bioShouldRetry) {
	    dprintf("The I/O did not complete -- but we should try it again");

	    if (statePtr->flags & TLS_TCL_ASYNC) {
		dprintf("Returning EAGAIN so that it can be retried later");
		*errorCodePtr = EAGAIN;
		Tls_Error(statePtr, "Handshake not complete, will retry later");
		return(-1);
	    } else {
		dprintf("Doing so now");
		continue;
	    }
	}

	dprintf("We have either completely established the session or completely failed it -- there is no more need to ever retry it though");
	break;
    }




    switch (rc) {
	case SSL_ERROR_NONE:
	    /* The TLS/SSL I/O operation completed */
	    dprintf("The connection is good");
	    *errorCodePtr = 0;
	    break;

	case SSL_ERROR_ZERO_RETURN:
	    /* The TLS/SSL peer has closed the connection for writing by sending the close_notify alert */
	    dprintf("SSL_ERROR_ZERO_RETURN: Connect returned an invalid value...");
	    *errorCodePtr = EINVAL;
	    Tls_Error(statePtr, "Peer has closed the connection for writing by sending the close_notify alert");
	    return(-1);

	case SSL_ERROR_SYSCALL:
	    /* Some non-recoverable, fatal I/O error occurred */
	    dprintf("SSL_ERROR_SYSCALL");

	    if (backingError == 0 && err == 0) {
		dprintf("EOF reached")
		*errorCodePtr = ECONNRESET;
		Tls_Error(statePtr, "(unexpected) EOF reached");

	    } else if (backingError == 0 && err == -1) {
		dprintf("I/O error occurred (errno = %lu)", (unsigned long) Tcl_GetErrno());
		*errorCodePtr = Tcl_GetErrno();
		if (*errorCodePtr == ECONNRESET) {
		    *errorCodePtr = ECONNABORTED;
		}
		Tls_Error(statePtr, (char *) Tcl_ErrnoMsg(*errorCodePtr));

	    } else {
		dprintf("I/O error occurred (backingError = %lu)", backingError);
		*errorCodePtr = Tcl_GetErrno();
		if (*errorCodePtr == ECONNRESET) {
		    *errorCodePtr = ECONNABORTED;
		}
		Tls_Error(statePtr, (char *) ERR_reason_error_string(backingError));
	    }

	    statePtr->flags |= TLS_TCL_HANDSHAKE_FAILED;

	    return(-1);

	case SSL_ERROR_SSL:
	    /* A non-recoverable, fatal error in the SSL library occurred, usually a protocol error */
	    dprintf("SSL_ERROR_SSL: Got permanent fatal SSL error, aborting immediately");
	    if (SSL_get_verify_result(statePtr->ssl) != X509_V_OK) {
		Tls_Error(statePtr, (char *) X509_verify_cert_error_string(SSL_get_verify_result(statePtr->ssl)));
	    }
	    if (backingError != 0) {
		Tls_Error(statePtr, (char *) ERR_reason_error_string(backingError));
	    }
	    statePtr->flags |= TLS_TCL_HANDSHAKE_FAILED;
	    *errorCodePtr = ECONNABORTED;
	    return(-1);

	case SSL_ERROR_WANT_READ:
	case SSL_ERROR_WANT_WRITE:
	case SSL_ERROR_WANT_X509_LOOKUP:
	case SSL_ERROR_WANT_CONNECT:
	case SSL_ERROR_WANT_ACCEPT:
	case SSL_ERROR_WANT_ASYNC:
	case SSL_ERROR_WANT_ASYNC_JOB:
	case SSL_ERROR_WANT_CLIENT_HELLO_CB:
	default:
	    /* The operation did not complete and should be retried later. */
	    dprintf("Operation did not complete, call function again later: %i", rc);
	    *errorCodePtr = EAGAIN;
	    dprintf("ERR(%d, %d) ", rc, *errorCodePtr);


	    Tls_Error(statePtr, "Operation did not complete, call function again later");











	    return(-1);
    }



    dprintf("Removing the \"TLS_TCL_INIT\" flag since we have completed the handshake");
    statePtr->flags &= ~TLS_TCL_INIT;

    dprintf("Returning in success");
    *errorCodePtr = 0;
    return 0;
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	return(0);
    }

    dprintf("Calling Tls_WaitForConnect");
    tlsConnect = Tls_WaitForConnect(statePtr, errorCodePtr, 0);
    if (tlsConnect < 0) {
	dprintf("Got an error waiting to connect (tlsConnect = %i, *errorCodePtr = %i)", tlsConnect, *errorCodePtr);


	bytesRead = -1;
	if (*errorCodePtr == ECONNRESET) {
	    dprintf("Got connection reset");
	    /* Soft EOF */
	    *errorCodePtr = 0;
	    bytesRead = 0;







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	return(0);
    }

    dprintf("Calling Tls_WaitForConnect");
    tlsConnect = Tls_WaitForConnect(statePtr, errorCodePtr, 0);
    if (tlsConnect < 0) {
	dprintf("Got an error waiting to connect (tlsConnect = %i, *errorCodePtr = %i)", tlsConnect, *errorCodePtr);
	Tls_Error(statePtr, strerror(*errorCodePtr));

	bytesRead = -1;
	if (*errorCodePtr == ECONNRESET) {
	    dprintf("Got connection reset");
	    /* Soft EOF */
	    *errorCodePtr = 0;
	    bytesRead = 0;
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     * correctly.  Similar fix in TlsOutputProc. - hobbs
     */
    ERR_clear_error();
    bytesRead = BIO_read(statePtr->bio, buf, bufSize);
    dprintf("BIO_read -> %d", bytesRead);

    err = SSL_get_error(statePtr->ssl, bytesRead);


#if 0
    if (bytesRead <= 0) {
	if (BIO_should_retry(statePtr->bio)) {
	    dprintf("I/O failed, will retry based on EAGAIN");
	    *errorCodePtr = EAGAIN;
	}
    }
#endif

    switch (err) {
	case SSL_ERROR_NONE:
	    dprintBuffer(buf, bytesRead);
	    break;

	case SSL_ERROR_SSL:

	    dprintf("SSL negotiation error, indicating that the connection has been aborted");







	    Tls_Error(statePtr, TCLTLS_SSL_ERROR(statePtr->ssl, bytesRead));
	    *errorCodePtr = ECONNABORTED;
	    bytesRead = -1;










	    break;

	case SSL_ERROR_SYSCALL:
		backingError = ERR_get_error();

		if (backingError == 0 && bytesRead == 0) {

				dprintf("EOF reached")
				*errorCodePtr = 0;
				bytesRead = 0;


		} else if (backingError == 0 && bytesRead == -1) {
				dprintf("I/O error occurred (errno = %lu)", (unsigned long) Tcl_GetErrno());
				*errorCodePtr = Tcl_GetErrno();
				bytesRead = -1;


		} else {
				dprintf("I/O error occurred (backingError = %lu)", backingError);
				*errorCodePtr = backingError;
				bytesRead = -1;

		}

		break;

		case SSL_ERROR_ZERO_RETURN:
			dprintf("Got SSL_ERROR_ZERO_RETURN, this means an EOF has been reached");
			bytesRead = 0;
			*errorCodePtr = 0;

			break;

		case SSL_ERROR_WANT_READ:
			dprintf("Got SSL_ERROR_WANT_READ, mapping this to EAGAIN");
			bytesRead = -1;
			*errorCodePtr = EAGAIN;

			break;

		default:
			dprintf("Unknown error (err = %i), mapping to EOF", err);
		*errorCodePtr = 0;
		bytesRead = 0;

		break;
    }

    dprintf("Input(%d) -> %d [%d]", bufSize, bytesRead, *errorCodePtr);
    return bytesRead;
}

/*







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     * correctly.  Similar fix in TlsOutputProc. - hobbs
     */
    ERR_clear_error();
    bytesRead = BIO_read(statePtr->bio, buf, bufSize);
    dprintf("BIO_read -> %d", bytesRead);

    err = SSL_get_error(statePtr->ssl, bytesRead);
    backingError = ERR_get_error();

#if 0
    if (bytesRead <= 0) {
	if (BIO_should_retry(statePtr->bio)) {
	    dprintf("I/O failed, will retry based on EAGAIN");
	    *errorCodePtr = EAGAIN;
	}
    }
#endif

    switch (err) {
	case SSL_ERROR_NONE:
	    dprintBuffer(buf, bytesRead);
	    break;

	case SSL_ERROR_SSL:
	    /* A non-recoverable, fatal error in the SSL library occurred, usually a protocol error */
	    dprintf("SSL error, indicating that the connection has been aborted");
	    if (backingError != 0) {
		Tls_Error(statePtr, (char *) ERR_reason_error_string(backingError));
	    } else if (SSL_get_verify_result(statePtr->ssl) != X509_V_OK) {
		Tls_Error(statePtr, (char *) X509_verify_cert_error_string(SSL_get_verify_result(statePtr->ssl)));
	    } else {
		Tls_Error(statePtr, "Unknown SSL error");
	    }

	    *errorCodePtr = ECONNABORTED;
	    bytesRead = -1;

#if OPENSSL_VERSION_NUMBER >= 0x30000000L
	    /* Unexpected EOF from the peer for OpenSSL 3.0+ */
	    if (ERR_GET_REASON(backingError) == SSL_R_UNEXPECTED_EOF_WHILE_READING) {
		dprintf("(Unexpected) EOF reached")
		*errorCodePtr = 0;
		bytesRead = 0;
		Tls_Error(statePtr, "EOF reached");
	    }
#endif
	    break;

	case SSL_ERROR_SYSCALL:
	    /* Some non-recoverable, fatal I/O error occurred */

	    if (backingError == 0 && bytesRead == 0) {
		/* Unexpected EOF from the peer for OpenSSL 1.1 */
		dprintf("(Unexpected) EOF reached")
		*errorCodePtr = 0;
		bytesRead = 0;
		Tls_Error(statePtr, "EOF reached");

	    } else if (backingError == 0 && bytesRead == -1) {
		dprintf("I/O error occurred (errno = %lu)", (unsigned long) Tcl_GetErrno());
		*errorCodePtr = Tcl_GetErrno();
		bytesRead = -1;
		Tls_Error(statePtr, (char *) Tcl_ErrnoMsg(*errorCodePtr));

	    } else {
		dprintf("I/O error occurred (backingError = %lu)", backingError);
		*errorCodePtr = Tcl_GetErrno();
		bytesRead = -1;
		Tls_Error(statePtr, (char *) ERR_reason_error_string(backingError));
	    }

	    break;

	case SSL_ERROR_ZERO_RETURN:
	    dprintf("Got SSL_ERROR_ZERO_RETURN, this means an EOF has been reached");
	    bytesRead = 0;
	    *errorCodePtr = 0;
	    Tls_Error(statePtr, "Peer has closed the connection for writing by sending the close_notify alert");
	    break;

	case SSL_ERROR_WANT_READ:
	    dprintf("Got SSL_ERROR_WANT_READ, mapping this to EAGAIN");
	    bytesRead = -1;
	    *errorCodePtr = EAGAIN;
	    Tls_Error(statePtr, "SSL_ERROR_WANT_READ");
	    break;

	default:
	    dprintf("Unknown error (err = %i), mapping to EOF", err);
	    *errorCodePtr = 0;
	    bytesRead = 0;
	    Tls_Error(statePtr, "Unknown error");
	    break;
    }

    dprintf("Input(%d) -> %d [%d]", bufSize, bytesRead, *errorCodePtr);
    return bytesRead;
}

/*
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	return(-1);
    }

    dprintf("Calling Tls_WaitForConnect");
    tlsConnect = Tls_WaitForConnect(statePtr, errorCodePtr, 1);
    if (tlsConnect < 0) {
	dprintf("Got an error waiting to connect (tlsConnect = %i, *errorCodePtr = %i)", tlsConnect, *errorCodePtr);


	written = -1;
	if (*errorCodePtr == ECONNRESET) {
	    dprintf("Got connection reset");
	    /* Soft EOF */
	    *errorCodePtr = 0;
	    written = 0;
	}
	return(written);
    }

    if (toWrite == 0) {
	dprintf("zero-write");
	err = BIO_flush(statePtr->bio);

	if (err <= 0) {
	    dprintf("Flushing failed");


	    *errorCodePtr = EIO;
	    written = 0;
	    return(-1);
	}

	written = 0;







>

















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	return(-1);
    }

    dprintf("Calling Tls_WaitForConnect");
    tlsConnect = Tls_WaitForConnect(statePtr, errorCodePtr, 1);
    if (tlsConnect < 0) {
	dprintf("Got an error waiting to connect (tlsConnect = %i, *errorCodePtr = %i)", tlsConnect, *errorCodePtr);
	Tls_Error(statePtr, strerror(*errorCodePtr));

	written = -1;
	if (*errorCodePtr == ECONNRESET) {
	    dprintf("Got connection reset");
	    /* Soft EOF */
	    *errorCodePtr = 0;
	    written = 0;
	}
	return(written);
    }

    if (toWrite == 0) {
	dprintf("zero-write");
	err = BIO_flush(statePtr->bio);

	if (err <= 0) {
	    dprintf("Flushing failed");
	    Tls_Error(statePtr, "Flush failed");

	    *errorCodePtr = EIO;
	    written = 0;
	    return(-1);
	}

	written = 0;
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     * work correctly.  Similar fix in TlsInputProc. - hobbs
     */
    ERR_clear_error();
    written = BIO_write(statePtr->bio, buf, toWrite);
    dprintf("BIO_write(%p, %d) -> [%d]", (void *) statePtr, toWrite, written);

    err = SSL_get_error(statePtr->ssl, written);

    switch (err) {
	case SSL_ERROR_NONE:
	    if (written < 0) {
		written = 0;
	    }
	    break;
	case SSL_ERROR_WANT_WRITE:
	    dprintf("Got SSL_ERROR_WANT_WRITE, mapping it to EAGAIN");
	    *errorCodePtr = EAGAIN;
	    written = -1;

	    break;
	case SSL_ERROR_WANT_READ:
	    dprintf(" write R BLOCK");

	    break;
	case SSL_ERROR_WANT_X509_LOOKUP:
	    dprintf(" write X BLOCK");

	    break;
	case SSL_ERROR_ZERO_RETURN:
	    dprintf(" closed");
	    written = 0;
	    *errorCodePtr = 0;

	    break;
	case SSL_ERROR_SYSCALL:
	    backingError = ERR_get_error();

	    if (backingError == 0 && written == 0) {
		dprintf("EOF reached")
		*errorCodePtr = 0;
		written = 0;


	    } else if (backingError == 0 && written == -1) {
		dprintf("I/O error occurred (errno = %lu)", (unsigned long) Tcl_GetErrno());
		*errorCodePtr = Tcl_GetErrno();
		written = -1;


	    } else {
		dprintf("I/O error occurred (backingError = %lu)", backingError);
		*errorCodePtr = backingError;
		written = -1;

	    }
	    break;

	case SSL_ERROR_SSL:







	    Tls_Error(statePtr, TCLTLS_SSL_ERROR(statePtr->ssl, written));

	    *errorCodePtr = ECONNABORTED;
	    written = -1;
	    break;
	default:
	    dprintf(" unknown err: %d", err);

	    break;
    }

    dprintf("Output(%d) -> %d", toWrite, written);
    return(written);
}












































/*
 *-------------------------------------------------------------------
 *
 * TlsGetOptionProc --
 *
 *    Gets an option value for a SSL socket based channel, or a







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     * work correctly.  Similar fix in TlsInputProc. - hobbs
     */
    ERR_clear_error();
    written = BIO_write(statePtr->bio, buf, toWrite);
    dprintf("BIO_write(%p, %d) -> [%d]", (void *) statePtr, toWrite, written);

    err = SSL_get_error(statePtr->ssl, written);
    backingError = ERR_get_error();
    switch (err) {
	case SSL_ERROR_NONE:
	    if (written < 0) {
		written = 0;
	    }
	    break;
	case SSL_ERROR_WANT_WRITE:
	    dprintf("Got SSL_ERROR_WANT_WRITE, mapping it to EAGAIN");
	    *errorCodePtr = EAGAIN;
	    written = -1;
	    Tls_Error(statePtr, "SSL_ERROR_WANT_WRITE");
	    break;
	case SSL_ERROR_WANT_READ:
	    dprintf(" write R BLOCK");
	    Tls_Error(statePtr, "SSL_ERROR_WANT_READ");
	    break;
	case SSL_ERROR_WANT_X509_LOOKUP:
	    dprintf(" write X BLOCK");
	    Tls_Error(statePtr, "SSL_ERROR_WANT_X509_LOOKUP");
	    break;
	case SSL_ERROR_ZERO_RETURN:
	    dprintf(" closed");
	    written = 0;
	    *errorCodePtr = 0;
	    Tls_Error(statePtr, "Peer has closed the connection for writing by sending the close_notify alert");
	    break;
	case SSL_ERROR_SYSCALL:
	    /* Some non-recoverable, fatal I/O error occurred */

	    if (backingError == 0 && written == 0) {
		dprintf("EOF reached")
		*errorCodePtr = 0;
		written = 0;
		Tls_Error(statePtr, "EOF reached");

	    } else if (backingError == 0 && written == -1) {
		dprintf("I/O error occurred (errno = %lu)", (unsigned long) Tcl_GetErrno());
		*errorCodePtr = Tcl_GetErrno();
		written = -1;
		Tls_Error(statePtr, (char *) Tcl_ErrnoMsg(*errorCodePtr));

	    } else {
		dprintf("I/O error occurred (backingError = %lu)", backingError);
		*errorCodePtr = Tcl_GetErrno();
		written = -1;
		Tls_Error(statePtr, (char *) ERR_reason_error_string(backingError));
	    }
	    break;

	case SSL_ERROR_SSL:
	    /* A non-recoverable, fatal error in the SSL library occurred, usually a protocol error */
	    dprintf("SSL error, indicating that the connection has been aborted");
	    if (backingError != 0) {
		Tls_Error(statePtr, (char *) ERR_reason_error_string(backingError));
	    } else if (SSL_get_verify_result(statePtr->ssl) != X509_V_OK) {
		Tls_Error(statePtr, (char *) X509_verify_cert_error_string(SSL_get_verify_result(statePtr->ssl)));
	    } else {
		Tls_Error(statePtr, "Unknown SSL error");
	    }
	    *errorCodePtr = ECONNABORTED;
	    written = -1;
	    break;
	default:
	    dprintf("unknown error: %d", err);
	    Tls_Error(statePtr, "Unknown error");
	    break;
    }

    dprintf("Output(%d) -> %d", toWrite, written);
    return(written);
}

/*
 *-------------------------------------------------------------------
 *
 * TlsSetOptionProc --
 *
 *    Sets an option value for a SSL socket based channel, or a
 *    list of all options and their values.
 *
 * Results:
 *    TCL_OK if successful or TCL_ERROR if failed.
 *
 * Side effects:
 *    Updates channel option to new value.
 *
 *-------------------------------------------------------------------
 */
static int
TlsSetOptionProc(void *instanceData,    /* Socket state. */
    Tcl_Interp *interp,		/* For errors - can be NULL. */
    const char *optionName,	/* Name of the option to set the value for, or
				 * NULL to get all options and their values. */
    const char *optionValue)	/* Value for option. */
{
    State *statePtr = (State *) instanceData;

    Tcl_Channel downChan = Tls_GetParent(statePtr, TLS_TCL_FASTPATH);
    Tcl_DriverSetOptionProc *setOptionProc;

    setOptionProc = Tcl_ChannelSetOptionProc(Tcl_GetChannelType(downChan));
    if (setOptionProc != NULL) {
	return (*setOptionProc)(Tcl_GetChannelInstanceData(downChan), interp, optionName, optionValue);
    } else if (optionName == (char*) NULL) {
	/*
	 * Request is query for all options, this is ok.
	 */
	return TCL_OK;
    }
    /*
     * Request for a specific option has to fail, we don't have any.
     */
    return Tcl_BadChannelOption(interp, optionName, "");
}

/*
 *-------------------------------------------------------------------
 *
 * TlsGetOptionProc --
 *
 *    Gets an option value for a SSL socket based channel, or a
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 */
static int
TlsGetOptionProc(
    void *instanceData,	/* Socket state. */
    Tcl_Interp *interp,		/* For errors - can be NULL. */
    const char *optionName,	/* Name of the option to retrieve the value for, or
				 * NULL to get all options and their values. */
    Tcl_DString *dsPtr)	/* Where to store the computed value initialized by caller. */
{
    State *statePtr = (State *) instanceData;

    Tcl_Channel downChan = Tls_GetParent(statePtr, TLS_TCL_FASTPATH);
    Tcl_DriverGetOptionProc *getOptionProc;

    getOptionProc = Tcl_ChannelGetOptionProc(Tcl_GetChannelType(downChan));
    if (getOptionProc != NULL) {
	return (*getOptionProc)(Tcl_GetChannelInstanceData(downChan), interp, optionName, dsPtr);
    } else if (optionName == (char*) NULL) {
	/*
	 * Request is query for all options, this is ok.
	 */
	return TCL_OK;
    }
    /*
     * Request for a specific option has to fail, we don't have any.
     */
    return TCL_ERROR;
}

/*
 *-------------------------------------------------------------------
 *
 * TlsWatchProc --
 *







|








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 */
static int
TlsGetOptionProc(
    void *instanceData,	/* Socket state. */
    Tcl_Interp *interp,		/* For errors - can be NULL. */
    const char *optionName,	/* Name of the option to retrieve the value for, or
				 * NULL to get all options and their values. */
    Tcl_DString *optionValue)	/* Where to store the computed value initialized by caller. */
{
    State *statePtr = (State *) instanceData;

    Tcl_Channel downChan = Tls_GetParent(statePtr, TLS_TCL_FASTPATH);
    Tcl_DriverGetOptionProc *getOptionProc;

    getOptionProc = Tcl_ChannelGetOptionProc(Tcl_GetChannelType(downChan));
    if (getOptionProc != NULL) {
	return (*getOptionProc)(Tcl_GetChannelInstanceData(downChan), interp, optionName, optionValue);
    } else if (optionName == (char*) NULL) {
	/*
	 * Request is query for all options, this is ok.
	 */
	return TCL_OK;
    }
    /*
     * Request for a specific option has to fail, we don't have any.
     */
    return Tcl_BadChannelOption(interp, optionName, "");
}

/*
 *-------------------------------------------------------------------
 *
 * TlsWatchProc --
 *
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TlsWatchProc(
    void *instanceData,    /* The socket state. */
    int mask)			/* Events of interest; an OR-ed combination of
				 * TCL_READABLE, TCL_WRITABLE and TCL_EXCEPTION. */
{
    Tcl_Channel     downChan;
    State *statePtr = (State *) instanceData;


    dprintf("TlsWatchProc(0x%x)", mask);

    /* Pretend to be dead as long as the verify callback is running.
     * Otherwise that callback could be invoked recursively. */
    if (statePtr->flags & TLS_TCL_CALLBACK) {
	dprintf("Callback is on-going, doing nothing");
	return;
    }

    dprintFlags(statePtr);

    downChan = Tls_GetParent(statePtr, TLS_TCL_FASTPATH);

    if (statePtr->flags & TLS_TCL_HANDSHAKE_FAILED) {
	dprintf("Asked to watch a socket with a failed handshake -- nothing can happen here");
	dprintf("Unregistering interest in the lower channel");


	(Tcl_GetChannelType(downChan))->watchProc(Tcl_GetChannelInstanceData(downChan), 0);
	statePtr->watchMask = 0;
	return;
    }

    statePtr->watchMask = mask;

    /* No channel handlers any more. We will be notified automatically
     * about events on the channel below via a call to our
     * 'TransformNotifyProc'. But we have to pass the interest down now.
     * We are allowed to add additional 'interest' to the mask if we want
     * to. But this transformation has no such interest. It just passes
     * the request down, unchanged.
     */
    dprintf("Registering our interest in the lower channel (chan=%p)", (void *) downChan);
    (Tcl_GetChannelType(downChan))
	    ->watchProc(Tcl_GetChannelInstanceData(downChan), mask);


    /*
     * Management of the internal timer.
     */
    if (statePtr->timer != (Tcl_TimerToken) NULL) {
	dprintf("A timer was found, deleting it");
	Tcl_DeleteTimerHandler(statePtr->timer);







>


















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TlsWatchProc(
    void *instanceData,    /* The socket state. */
    int mask)			/* Events of interest; an OR-ed combination of
				 * TCL_READABLE, TCL_WRITABLE and TCL_EXCEPTION. */
{
    Tcl_Channel     downChan;
    State *statePtr = (State *) instanceData;
    Tcl_DriverWatchProc *watchProc;

    dprintf("TlsWatchProc(0x%x)", mask);

    /* Pretend to be dead as long as the verify callback is running.
     * Otherwise that callback could be invoked recursively. */
    if (statePtr->flags & TLS_TCL_CALLBACK) {
	dprintf("Callback is on-going, doing nothing");
	return;
    }

    dprintFlags(statePtr);

    downChan = Tls_GetParent(statePtr, TLS_TCL_FASTPATH);

    if (statePtr->flags & TLS_TCL_HANDSHAKE_FAILED) {
	dprintf("Asked to watch a socket with a failed handshake -- nothing can happen here");
	dprintf("Unregistering interest in the lower channel");

	watchProc = Tcl_ChannelWatchProc(Tcl_GetChannelType(downChan));
	watchProc(Tcl_GetChannelInstanceData(downChan), 0);
	statePtr->watchMask = 0;
	return;
    }

    statePtr->watchMask = mask;

    /* No channel handlers any more. We will be notified automatically
     * about events on the channel below via a call to our
     * 'TransformNotifyProc'. But we have to pass the interest down now.
     * We are allowed to add additional 'interest' to the mask if we want
     * to. But this transformation has no such interest. It just passes
     * the request down, unchanged.
     */
    dprintf("Registering our interest in the lower channel (chan=%p)", (void *) downChan);
    watchProc = Tcl_ChannelWatchProc(Tcl_GetChannelType(downChan));
    watchProc(Tcl_GetChannelInstanceData(downChan), mask);


    /*
     * Management of the internal timer.
     */
    if (statePtr->timer != (Tcl_TimerToken) NULL) {
	dprintf("A timer was found, deleting it");
	Tcl_DeleteTimerHandler(statePtr->timer);
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	dprintf("Returning 0 due to callback");
	return 0;
    }

    dprintf("Calling Tls_WaitForConnect");
    errorCode = 0;
    if (Tls_WaitForConnect(statePtr, &errorCode, 1) < 0) {

	if (errorCode == EAGAIN) {
	    dprintf("Async flag could be set (didn't check) and errorCode == EAGAIN:  Returning 0");

	    return 0;
	}

	dprintf("Tls_WaitForConnect returned an error");
    }

    dprintf("Returning %i", mask);

    return(mask);
}

#if 0
/*
 *------------------------------------------------------*
 *
 *      TlsChannelHandler --
 *
 *      ------------------------------------------------*
 *      Handler called by Tcl as a result of
 *      Tcl_CreateChannelHandler - to inform us of activity
 *      on the underlying channel.
 *      ------------------------------------------------*
 *
 *      Sideeffects:
 *              May generate subsequent calls to
 *              Tcl_NotifyChannel.
 *
 *      Result:
 *              None.
 *
 *------------------------------------------------------*
 */

static void
TlsChannelHandler (clientData, mask)
    void *    clientData;
    int            mask;
{
    State *statePtr = (State *) clientData;


    dprintf("HANDLER(0x%x)", mask);
    Tcl_Preserve(statePtr);

    if (mask & TCL_READABLE) {
	BIO_set_flags(statePtr->p_bio, BIO_FLAGS_READ);
    } else {
	BIO_clear_flags(statePtr->p_bio, BIO_FLAGS_READ);
    }



    if (mask & TCL_WRITABLE) {
	BIO_set_flags(statePtr->p_bio, BIO_FLAGS_WRITE);
    } else {
	BIO_clear_flags(statePtr->p_bio, BIO_FLAGS_WRITE);
    }

    mask = 0;
    if (BIO_wpending(statePtr->bio)) {
	mask |= TCL_WRITABLE;

    }
    if (BIO_pending(statePtr->bio)) {
	mask |= TCL_READABLE;
    }

    /*
     * The following NotifyChannel calls seems to be important, but
     * we don't know why.  It looks like if the mask is ever non-zero
     * that it will enter an infinite loop.
     *
     * Notify the upper channel of the current BIO state so the event
     * continues to propagate up the chain.
     *
     * stanton: It looks like this could result in an infinite loop if
     * the upper channel doesn't cause ChannelHandler to be removed
     * before Tcl_NotifyChannel calls channel handlers on the lower channel.
     */

    Tcl_NotifyChannel(statePtr->self, mask);

    if (statePtr->timer != (Tcl_TimerToken)NULL) {
	Tcl_DeleteTimerHandler(statePtr->timer);
	statePtr->timer = (Tcl_TimerToken)NULL;
    }
    if ((mask & TCL_READABLE) && Tcl_InputBuffered(statePtr->self) > 0) {
	/*
	 * Data is waiting, flush it out in short time
	 */
	statePtr->timer = Tcl_CreateTimerHandler(TLS_TCL_DELAY,
		TlsChannelHandlerTimer, statePtr);
    }

    Tcl_Release(statePtr);
}


#endif

/*
 *------------------------------------------------------*
 *
 *	TlsChannelHandlerTimer --
 *
 *	------------------------------------------------*
 *	Called by the notifier (-> timer) to flush out
 *	information waiting in channel buffers.
 *	------------------------------------------------*
 *
 *	Sideeffects:
 *		As of 'TlsChannelHandler'.
 *
 *	Result:
 *		None.
 *
 *------------------------------------------------------*
 */


/*
 *-------------------------------------------------------------------
 *
 * Tls_ChannelType --
 *
 *    Return the correct TLS channel driver info







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	dprintf("Returning 0 due to callback");
	return 0;
    }

    dprintf("Calling Tls_WaitForConnect");
    errorCode = 0;
    if (Tls_WaitForConnect(statePtr, &errorCode, 1) < 0) {
	Tls_Error(statePtr, strerror(errorCode));
	if (errorCode == EAGAIN) {
	    dprintf("Async flag could be set (didn't check) and errorCode == EAGAIN:  Returning 0");

	    return 0;
	}

	dprintf("Tls_WaitForConnect returned an error");
    }

    dprintf("Returning %i", mask);

    return(mask);
}


/*
 *------------------------------------------------------*
 *
 *    TlsChannelHandlerTimer --
 *
 *    ------------------------------------------------*
 *    Called by the notifier (-> timer) to flush out

 *    information waiting in channel buffers.
 *    ------------------------------------------------*
 *
 *    Side effects:

 *        As of 'TlsChannelHandler'.
 *
 *    Result:
 *        None.
 *
 *------------------------------------------------------*
 */

static void TlsChannelHandlerTimer(void *clientData) {




    State *statePtr = (State *) clientData;
    int mask = 0;

    dprintf("Called");



    statePtr->timer = (Tcl_TimerToken) NULL;



    if (BIO_wpending(statePtr->bio)) {
	dprintf("[chan=%p] BIO writable", statePtr->self);

	mask |= TCL_WRITABLE;



    }


    if (BIO_pending(statePtr->bio)) {

	dprintf("[chan=%p] BIO readable", statePtr->self);


	mask |= TCL_READABLE;
    }













    dprintf("Notifying ourselves");
    Tcl_NotifyChannel(statePtr->self, mask);

    dprintf("Returning");

    return;
}







Tcl_Channel Tls_GetParent(State *statePtr, int maskFlags) {
    dprintf("Requested to get parent of channel %p", statePtr->self);

    if ((statePtr->flags & ~maskFlags) & TLS_TCL_FASTPATH) {
	dprintf("Asked to get the parent channel while we are using FastPath -- returning NULL");
	return(NULL);
    }



    return(Tcl_GetStackedChannel(statePtr->self));














}

/*
 *-------------------------------------------------------------------
 *
 * Tls_ChannelType --
 *
 *    Return the correct TLS channel driver info
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static const Tcl_ChannelType tlsChannelType = {
    "tls",			/* Type name */
    TCL_CHANNEL_VERSION_5,	/* v5 channel */
    TlsCloseProc,		/* Close proc */
    TlsInputProc,		/* Input proc */
    TlsOutputProc,		/* Output proc */
    0,			/* Seek proc */
    0,		/* Set option proc */
    TlsGetOptionProc,		/* Get option proc */
    TlsWatchProc,		/* Initialize notifier */
    TlsGetHandleProc,		/* Get OS handles out of channel */
    TlsClose2Proc,		/* close2proc */
    TlsBlockModeProc,		/* Set blocking/nonblocking mode*/
    0,			/* Flush proc */
    TlsNotifyProc,		/* Handling of events bubbling up */
    0,			/* Wide seek proc */
    NULL,			/* Thread action */
    NULL			/* Truncate */
};

const Tcl_ChannelType *Tls_ChannelType(void) {
    return &tlsChannelType;
}


static void TlsChannelHandlerTimer(void *clientData) {
	State *statePtr = (State *) clientData;
	int mask = 0;

	dprintf("Called");

	statePtr->timer = (Tcl_TimerToken) NULL;

	if (BIO_wpending(statePtr->bio)) {
		dprintf("[chan=%p] BIO writable", statePtr->self);

		mask |= TCL_WRITABLE;
	}

	if (BIO_pending(statePtr->bio)) {
		dprintf("[chan=%p] BIO readable", statePtr->self);

		mask |= TCL_READABLE;
	}

	dprintf("Notifying ourselves");
	Tcl_NotifyChannel(statePtr->self, mask);

	dprintf("Returning");

	return;
}

Tcl_Channel Tls_GetParent(State *statePtr, int maskFlags) {
	dprintf("Requested to get parent of channel %p", statePtr->self);

	if ((statePtr->flags & ~maskFlags) & TLS_TCL_FASTPATH) {
		dprintf("Asked to get the parent channel while we are using FastPath -- returning NULL");
		return(NULL);
	}

	return(Tcl_GetStackedChannel(statePtr->self));
}







|















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static const Tcl_ChannelType tlsChannelType = {
    "tls",			/* Type name */
    TCL_CHANNEL_VERSION_5,	/* v5 channel */
    TlsCloseProc,		/* Close proc */
    TlsInputProc,		/* Input proc */
    TlsOutputProc,		/* Output proc */
    0,			/* Seek proc */
    TlsSetOptionProc,		/* Set option proc */
    TlsGetOptionProc,		/* Get option proc */
    TlsWatchProc,		/* Initialize notifier */
    TlsGetHandleProc,		/* Get OS handles out of channel */
    TlsClose2Proc,		/* close2proc */
    TlsBlockModeProc,		/* Set blocking/nonblocking mode*/
    0,			/* Flush proc */
    TlsNotifyProc,		/* Handling of events bubbling up */
    0,			/* Wide seek proc */
    NULL,			/* Thread action */
    NULL			/* Truncate */
};

const Tcl_ChannelType *Tls_ChannelType(void) {
    return &tlsChannelType;
}








































Modified generic/tlsInt.h from [3f639399ff] to [482c56ef99].

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#ifdef _WIN32
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <wincrypt.h> /* OpenSSL needs this on Windows */
#endif


#ifdef NO_PATENTS
#  define NO_IDEA
#  define NO_RC2
#  define NO_RC4
#  define NO_RC5
#  define NO_RSA
#endif

#include <openssl/ssl.h>
#include <openssl/err.h>
#include <openssl/rand.h>
#include <openssl/opensslv.h>

/*
 * Determine if we should use the pre-OpenSSL 1.1.0 API
 */
#undef TCLTLS_OPENSSL_PRE_1_1
#if defined(LIBRESSL_VERSION_NUMBER)
#  define TCLTLS_OPENSSL_PRE_1_1_API 1
#endif

#ifndef ECONNABORTED
#define ECONNABORTED	130	/* Software caused connection abort */
#endif
#ifndef ECONNRESET
#define ECONNRESET	131	/* Connection reset by peer */
#endif








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#ifdef _WIN32
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <wincrypt.h> /* OpenSSL needs this on Windows */
#endif

/* Handle TCL 8.6 CONST changes */
#ifndef CONST86
#   if TCL_MAJOR_VERSION > 8
#	define CONST86 const
#   else
#	define CONST86
#   endif
#endif

#include <openssl/ssl.h>
#include <openssl/err.h>
#include <openssl/rand.h>
#include <openssl/opensslv.h>









#ifndef ECONNABORTED
#define ECONNABORTED	130	/* Software caused connection abort */
#endif
#ifndef ECONNRESET
#define ECONNRESET	131	/* Connection reset by peer */
#endif

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}
#else
#define dprintf(...) if (0) { fprintf(stderr, __VA_ARGS__); }
#define dprintBuffer(bufferName, bufferLength) /**/
#define dprintFlags(statePtr) /**/
#endif


#define TCLTLS_SSL_ERROR(ssl,err) ((char*)ERR_reason_error_string((unsigned long)SSL_get_error((ssl),(err))))


























/*
 * OpenSSL BIO Routines
 */
#define BIO_TYPE_TCL	(19|0x0400)

/*
 * Defines for State.flags







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}
#else
#define dprintf(...) if (0) { fprintf(stderr, __VA_ARGS__); }
#define dprintBuffer(bufferName, bufferLength) /**/
#define dprintFlags(statePtr) /**/
#endif

#define GET_ERR_REASON()	ERR_reason_error_string(ERR_get_error())

/* Common list append macros */
#define LAPPEND_BARRAY(interp, obj, text, value, size) {\
    if (text != NULL) Tcl_ListObjAppendElement(interp, obj, Tcl_NewStringObj(text, -1)); \
    Tcl_ListObjAppendElement(interp, obj, Tcl_NewByteArrayObj(value, size)); \
}
#define LAPPEND_STR(interp, obj, text, value, size) {\
    if (text != NULL) Tcl_ListObjAppendElement(interp, obj, Tcl_NewStringObj(text, -1)); \
    Tcl_ListObjAppendElement(interp, obj, Tcl_NewStringObj(value, size)); \
}
#define LAPPEND_INT(interp, obj, text, value) {\
    if (text != NULL) Tcl_ListObjAppendElement(interp, obj, Tcl_NewStringObj(text, -1)); \
    Tcl_ListObjAppendElement(interp, obj, Tcl_NewIntObj(value)); \
}
#define LAPPEND_LONG(interp, obj, text, value) {\
    if (text != NULL) Tcl_ListObjAppendElement(interp, obj, Tcl_NewStringObj(text, -1)); \
    Tcl_ListObjAppendElement(interp, obj, Tcl_NewLongObj(value)); \
}
#define LAPPEND_BOOL(interp, obj, text, value) {\
    if (text != NULL) Tcl_ListObjAppendElement(interp, obj, Tcl_NewStringObj(text, -1)); \
    Tcl_ListObjAppendElement(interp, obj, Tcl_NewBooleanObj(value)); \
}
#define LAPPEND_OBJ(interp, obj, text, listObj) {\
    if (text != NULL) Tcl_ListObjAppendElement(interp, obj, Tcl_NewStringObj(text, -1)); \
    Tcl_ListObjAppendElement(interp, obj, listObj); \
}

/*
 * OpenSSL BIO Routines
 */
#define BIO_TYPE_TCL	(19|0x0400)

/*
 * Defines for State.flags
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	int flags;		/* see State.flags above  */
	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, info, and errors */
	Tcl_Obj *password;	/* script called for certificate password */


	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) */




	const char *err;
} State;

#ifdef USE_TCL_STUBS
#ifndef Tcl_StackChannel
#error "Unable to compile on this version of Tcl"







>






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	int flags;		/* see State.flags above  */
	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, info, and errors */
	Tcl_Obj *password;	/* script called for certificate password */
	Tcl_Obj *vcmd;		/* script called to verify or validate protocol config */

	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) */

	unsigned char *protos;	/* List of supported protocols in protocol format */
	unsigned int protos_len; /* Length of protos */

	const char *err;
} State;

#ifdef USE_TCL_STUBS
#ifndef Tcl_StackChannel
#error "Unable to compile on this version of Tcl"
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/*
 * Forward declarations
 */
const Tcl_ChannelType *Tls_ChannelType(void);
Tcl_Channel     Tls_GetParent(State *statePtr, int maskFlags);

Tcl_Obj        *Tls_NewX509Obj(Tcl_Interp *interp, X509 *cert);

void            Tls_Error(State *statePtr, char *msg);
#if TCL_MAJOR_VERSION > 8
void            Tls_Free(void *blockPtr);
#else
void            Tls_Free(char *blockPtr);
#endif
void            Tls_Clean(State *statePtr);







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/*
 * Forward declarations
 */
const Tcl_ChannelType *Tls_ChannelType(void);
Tcl_Channel     Tls_GetParent(State *statePtr, int maskFlags);

Tcl_Obj        *Tls_NewX509Obj(Tcl_Interp *interp, X509 *cert);
Tcl_Obj	       *Tls_NewCAObj(Tcl_Interp *interp, const SSL *ssl, int peer);
void            Tls_Error(State *statePtr, char *msg);
#if TCL_MAJOR_VERSION > 8
void            Tls_Free(void *blockPtr);
#else
void            Tls_Free(char *blockPtr);
#endif
void            Tls_Clean(State *statePtr);

Modified generic/tlsX509.c from [6adf085ff1] to [e4f9edb46f].

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/*
 * Copyright (C) 1997-2000 Sensus Consulting Ltd.
 * Matt Newman <[email protected]>

 */








#include "tlsInt.h"





/*







 *  Ensure these are not macros - known to be defined on Win32










 */



#ifdef min









#undef min






#endif



#ifdef max











#undef max







#endif







static int min(int a, int b)
{

    return (a < b) ? a : b;




}



static int max(int a, int b)
{
    return (a > b) ? a : b;






























}



/*




 * ASN1_UTCTIME_tostr --


























 */


static char *
ASN1_UTCTIME_tostr(ASN1_UTCTIME *tm)



{



    static char bp[128];









    char *v;






    int gmt=0;

    static char *mon[12]={



        "Jan","Feb","Mar","Apr","May","Jun",



        "Jul","Aug","Sep","Oct","Nov","Dec"};







    int i;






    int y=0,M=0,d=0,h=0,m=0,s=0;



    i=tm->length;


    v=(char *)tm->data;








































    if (i < 10) goto err;


    if (v[i-1] == 'Z') gmt=1;

    for (i=0; i<10; i++)


        if ((v[i] > '9') || (v[i] < '0')) goto err;
    y= (v[0]-'0')*10+(v[1]-'0');
    if (y < 70) y+=100;
    M= (v[2]-'0')*10+(v[3]-'0');





    if ((M > 12) || (M < 1)) goto err;
    d= (v[4]-'0')*10+(v[5]-'0');
    h= (v[6]-'0')*10+(v[7]-'0');
    m=  (v[8]-'0')*10+(v[9]-'0');



    if (	(v[10] >= '0') && (v[10] <= '9') &&













		(v[11] >= '0') && (v[11] <= '9'))
        s=  (v[10]-'0')*10+(v[11]-'0');










    sprintf(bp,"%s %2d %02d:%02d:%02d %d%s",
                   mon[M-1],d,h,m,s,y+1900,(gmt)?" GMT":"");






    return bp;

 err:

























    return "Bad time value";
}

/*
 *------------------------------------------------------*
 *
 *	Tls_NewX509Obj --
 *
 *	------------------------------------------------*
 *	Converts a X509 certificate into a Tcl_Obj
 *	------------------------------------------------*
 *
 *	Sideeffects:
 *		None
 *
 *	Result:
 *		A Tcl List Object representing the provided
 *		X509 certificate.
 *
 *------------------------------------------------------*
 */

#define CERT_STR_SIZE 16384

Tcl_Obj*
Tls_NewX509Obj( interp, cert)
    Tcl_Interp *interp;
    X509 *cert;
{
    Tcl_Obj *certPtr = Tcl_NewListObj( 0, NULL);
    BIO *bio;
    int n;
    unsigned long flags;
    char subject[BUFSIZ];

    char issuer[BUFSIZ];
    char serial[BUFSIZ];


    char notBefore[BUFSIZ];
    char notAfter[BUFSIZ];


    char certStr[CERT_STR_SIZE], *certStr_p;


    int certStr_len, toRead;
#ifndef NO_SSL_SHA




    int shai;
    char sha_hash_ascii[SHA_DIGEST_LENGTH * 2 + 1];
    unsigned char sha_hash_binary[SHA_DIGEST_LENGTH];
    const char *shachars="0123456789ABCDEF";







    sha_hash_ascii[SHA_DIGEST_LENGTH * 2] = '\0';


#endif






















    certStr[0] = 0;
    if ((bio = BIO_new(BIO_s_mem())) == NULL) {
	subject[0] = 0;

	issuer[0]  = 0;
	serial[0]  = 0;
    } else {
	flags = XN_FLAG_RFC2253 | ASN1_STRFLGS_UTF8_CONVERT;
	flags &= ~ASN1_STRFLGS_ESC_MSB;


	X509_NAME_print_ex(bio, X509_get_subject_name(cert), 0, flags);


	n = BIO_read(bio, subject, min(BIO_pending(bio), BUFSIZ - 1));


	n = max(n, 0);





	subject[n] = 0;



	(void)BIO_flush(bio);




	X509_NAME_print_ex(bio, X509_get_issuer_name(cert), 0, flags);
	n = BIO_read(bio, issuer, min(BIO_pending(bio), BUFSIZ - 1));




	n = max(n, 0);

	issuer[n] = 0;
	(void)BIO_flush(bio);





	i2a_ASN1_INTEGER(bio, X509_get_serialNumber(cert));



	n = BIO_read(bio, serial, min(BIO_pending(bio), BUFSIZ - 1));

	n = max(n, 0);

	serial[n] = 0;






	(void)BIO_flush(bio);



        if (PEM_write_bio_X509(bio, cert)) {
            certStr_p = certStr;

            certStr_len = 0;
            while (1) {
                toRead = min(BIO_pending(bio), CERT_STR_SIZE - certStr_len - 1);
                toRead = min(toRead, BUFSIZ);
                if (toRead == 0) {

                    break;

                }
                dprintf("Reading %i bytes from the certificate...", toRead);
                n = BIO_read(bio, certStr_p, toRead);
                if (n <= 0) {

                    break;

                }
                certStr_len += n;
                certStr_p   += n;
            }
            *certStr_p = '\0';



            (void)BIO_flush(bio);




        }








	BIO_free(bio);




    }


    strcpy( notBefore, ASN1_UTCTIME_tostr( X509_get_notBefore(cert) ));



    strcpy( notAfter, ASN1_UTCTIME_tostr( X509_get_notAfter(cert) ));




#ifndef NO_SSL_SHA
    X509_digest(cert, EVP_sha1(), sha_hash_binary, NULL);
    for (shai = 0; shai < SHA_DIGEST_LENGTH; shai++) {
        sha_hash_ascii[shai * 2]     = shachars[(sha_hash_binary[shai] & 0xF0) >> 4];
        sha_hash_ascii[shai * 2 + 1] = shachars[(sha_hash_binary[shai] & 0x0F)];


    }
    Tcl_ListObjAppendElement( interp, certPtr, Tcl_NewStringObj("sha1_hash", -1) );
    Tcl_ListObjAppendElement( interp, certPtr, Tcl_NewStringObj(sha_hash_ascii, SHA_DIGEST_LENGTH * 2) );







#endif
    Tcl_ListObjAppendElement( interp, certPtr,
	    Tcl_NewStringObj( "subject", -1) );



    Tcl_ListObjAppendElement( interp, certPtr,
	    Tcl_NewStringObj( subject, -1) );





    Tcl_ListObjAppendElement( interp, certPtr,
	    Tcl_NewStringObj( "issuer", -1) );


    Tcl_ListObjAppendElement( interp, certPtr,
	    Tcl_NewStringObj( issuer, -1) );



    Tcl_ListObjAppendElement( interp, certPtr,


	    Tcl_NewStringObj( "notBefore", -1) );
    Tcl_ListObjAppendElement( interp, certPtr,
	    Tcl_NewStringObj( notBefore, -1) );




    Tcl_ListObjAppendElement( interp, certPtr,
	    Tcl_NewStringObj( "notAfter", -1) );

    Tcl_ListObjAppendElement( interp, certPtr,
	    Tcl_NewStringObj( notAfter, -1) );





    Tcl_ListObjAppendElement( interp, certPtr,
	    Tcl_NewStringObj( "serial", -1) );
    Tcl_ListObjAppendElement( interp, certPtr,

	    Tcl_NewStringObj( serial, -1) );



    Tcl_ListObjAppendElement( interp, certPtr,
	    Tcl_NewStringObj( "certificate", -1) );

    Tcl_ListObjAppendElement( interp, certPtr,
	    Tcl_NewStringObj( certStr, -1) );






    return certPtr;
}



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/*
 * Copyright (C) 1997-2000 Sensus Consulting Ltd.
 * Matt Newman <[email protected]>
 * Copyright (C) 2023 Brian O'Hagan
 */
#include <tcl.h>
#include <stdio.h>
#include <openssl/bio.h>
#include <openssl/sha.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include <openssl/x509_vfy.h>
#include <openssl/asn1.h>
#include "tlsInt.h"

/* Define maximum certificate size. Max PEM size 100kB and DER size is 24kB. */
#define CERT_STR_SIZE 32768


/*
 * Binary string to hex string
 */
int String_to_Hex(unsigned char* input, int ilen, unsigned char *output, int olen) {
    int count = 0;
    unsigned char *iptr = input;
    unsigned char *optr = &output[0];
    const char *hex = "0123456789abcdef";

    for (int i = 0; i < ilen && count < olen - 1; i++, count += 2) {
        *optr++ = hex[(*iptr>>4)&0xF];
        *optr++ = hex[(*iptr++)&0xF];
    }
    *optr = 0;
    return count;
}

/*
 * BIO to Buffer
 */
int BIO_to_Buffer(int result, BIO *bio, void *buffer, int size) {
    int len = 0;
    int pending = BIO_pending(bio);

    if (result) {
	len = BIO_read(bio, buffer, (pending < size) ? pending : size);
	(void)BIO_flush(bio);
	if (len < 0) {
	    len = 0;
	}
    }
    return len;
}

/*
 * Get X509 Certificate Extensions
 */
Tcl_Obj *Tls_x509Extensions(Tcl_Interp *interp, X509 *cert) {
    const STACK_OF(X509_EXTENSION) *exts;
    Tcl_Obj *listPtr = Tcl_NewListObj(0, NULL);

    if (listPtr == NULL) {
	return NULL;
    }

    if ((exts = X509_get0_extensions(cert)) != NULL) {
	for (int i=0; i < X509_get_ext_count(cert); i++) {
	    X509_EXTENSION *ex = sk_X509_EXTENSION_value(exts, i);
	    ASN1_OBJECT *obj = X509_EXTENSION_get_object(ex);
	    /* ASN1_OCTET_STRING *data = X509_EXTENSION_get_data(ex); */
	    int critical = X509_EXTENSION_get_critical(ex);
	    LAPPEND_BOOL(interp, listPtr, OBJ_nid2ln(OBJ_obj2nid(obj)), critical);
	}
    }
    return listPtr;
}

/*
 * Get Authority and Subject Key Identifiers
 */
Tcl_Obj *Tls_x509Identifier(const ASN1_OCTET_STRING *astring) {
    Tcl_Obj *resultPtr = NULL;
    int len = 0;
    unsigned char buffer[1024];

    if (astring != NULL) {
	len = String_to_Hex((unsigned char *)ASN1_STRING_get0_data(astring),
	    ASN1_STRING_length(astring), buffer, 1024);
    }
    resultPtr = Tcl_NewStringObj((char *) &buffer[0], (Tcl_Size) len);
    return resultPtr;
}


/*
 * Get Key Usage
 */
Tcl_Obj *Tls_x509KeyUsage(Tcl_Interp *interp, X509 *cert, uint32_t xflags) {
    uint32_t usage = X509_get_key_usage(cert);
    Tcl_Obj *listPtr = Tcl_NewListObj(0, NULL);

    if (listPtr == NULL) {
	return NULL;
    }



    if ((xflags & EXFLAG_KUSAGE) && usage < UINT32_MAX) {
	if (usage & KU_DIGITAL_SIGNATURE) {
	    Tcl_ListObjAppendElement(interp, listPtr, Tcl_NewStringObj("Digital Signature", -1));
	}
	if (usage & KU_NON_REPUDIATION) {
	    Tcl_ListObjAppendElement(interp, listPtr, Tcl_NewStringObj("Non-Repudiation", -1));
	}
	if (usage & KU_KEY_ENCIPHERMENT) {
	    Tcl_ListObjAppendElement(interp, listPtr, Tcl_NewStringObj("Key Encipherment", -1));
	}
	if (usage & KU_DATA_ENCIPHERMENT) {
	    Tcl_ListObjAppendElement(interp, listPtr, Tcl_NewStringObj("Data Encipherment", -1));
	}
	if (usage & KU_KEY_AGREEMENT) {
	    Tcl_ListObjAppendElement(interp, listPtr, Tcl_NewStringObj("Key Agreement", -1));
	}
	if (usage & KU_KEY_CERT_SIGN) {
	    Tcl_ListObjAppendElement(interp, listPtr, Tcl_NewStringObj("Certificate Signing", -1));
	}
	if (usage & KU_CRL_SIGN) {
	    Tcl_ListObjAppendElement(interp, listPtr, Tcl_NewStringObj("CRL Signing", -1));
	}
	if (usage & KU_ENCIPHER_ONLY) {
	    Tcl_ListObjAppendElement(interp, listPtr, Tcl_NewStringObj("Encipher Only", -1));
	}
	if (usage & KU_DECIPHER_ONLY) {
	    Tcl_ListObjAppendElement(interp, listPtr, Tcl_NewStringObj("Decipher Only", -1));
	}
    } else {
	    Tcl_ListObjAppendElement(interp, listPtr, Tcl_NewStringObj("unrestricted", -1));
    }
    return listPtr;
}

/*
 * Get Certificate Purpose
 */
char *Tls_x509Purpose(X509 *cert) {
    char *purpose = NULL;

    if (X509_check_purpose(cert, X509_PURPOSE_SSL_CLIENT, 0) > 0) {
	purpose = "SSL Client";
    } else if (X509_check_purpose(cert, X509_PURPOSE_SSL_SERVER, 0) > 0) {
	purpose = "SSL Server";
    } else if (X509_check_purpose(cert, X509_PURPOSE_NS_SSL_SERVER, 0) > 0) {
	purpose = "MSS SSL Server";
    } else if (X509_check_purpose(cert, X509_PURPOSE_SMIME_SIGN, 0) > 0) {
	purpose = "SMIME Signing";
    } else if (X509_check_purpose(cert, X509_PURPOSE_SMIME_ENCRYPT, 0) > 0) {
	purpose = "SMIME Encryption";
    } else if (X509_check_purpose(cert, X509_PURPOSE_CRL_SIGN, 0) > 0) {
	purpose = "CRL Signing";
    } else if (X509_check_purpose(cert, X509_PURPOSE_ANY, 0) > 0) {
	purpose = "Any";
    } else if (X509_check_purpose(cert, X509_PURPOSE_OCSP_HELPER, 0) > 0) {
	purpose = "OCSP Helper";
    } else if (X509_check_purpose(cert, X509_PURPOSE_TIMESTAMP_SIGN, 0) > 0) {
	purpose = "Timestamp Signing";
    } else {
	purpose = "";
    }
    return purpose;
}

/*
 * For each purpose, get certificate applicability
 */
Tcl_Obj *Tls_x509Purposes(Tcl_Interp *interp, X509 *cert) {
    Tcl_Obj *listPtr = Tcl_NewListObj(0, NULL);
    X509_PURPOSE *ptmp;

    if (listPtr == NULL) {
	return NULL;
    }

    for (int i = 0; i < X509_PURPOSE_get_count(); i++) {
	ptmp = X509_PURPOSE_get0(i);
	Tcl_Obj *tmpPtr = Tcl_NewListObj(0, NULL);

	for (int j = 0; j < 2; j++) {
	    int idret = X509_check_purpose(cert, X509_PURPOSE_get_id(ptmp), j);
	    Tcl_ListObjAppendElement(interp, tmpPtr, Tcl_NewStringObj(j ? "CA" : "nonCA", -1));
	    Tcl_ListObjAppendElement(interp, tmpPtr, Tcl_NewStringObj(idret == 1 ? "Yes" : "No", -1));
	}
	LAPPEND_OBJ(interp, listPtr, X509_PURPOSE_get0_name(ptmp), tmpPtr);
    }
    return listPtr;
}

/*
 * Get Subject Alternate Names (SAN) and Issuer Alternate Names
 */
Tcl_Obj *Tls_x509Names(Tcl_Interp *interp, X509 *cert, int nid, BIO *bio) {
    STACK_OF(GENERAL_NAME) *names;
    Tcl_Obj *listPtr = Tcl_NewListObj(0, NULL);
    int len;
    char buffer[1024];

    if (listPtr == NULL) {
	return NULL;
    }

    if ((names = X509_get_ext_d2i(cert, nid, NULL, NULL)) != NULL) {
	for (int i=0; i < sk_GENERAL_NAME_num(names); i++) {
	    const GENERAL_NAME *name = sk_GENERAL_NAME_value(names, i);

	    len = BIO_to_Buffer(name && GENERAL_NAME_print(bio, (GENERAL_NAME *) name), bio, buffer, 1024);
	    LAPPEND_STR(interp, listPtr, NULL, buffer, (Tcl_Size) len);
	}
	sk_GENERAL_NAME_pop_free(names, GENERAL_NAME_free);
    }
    return listPtr;
}

/*
 * Get EXtended Key Usage
 */
Tcl_Obj *Tls_x509ExtKeyUsage(Tcl_Interp *interp, X509 *cert, uint32_t xflags) {
    uint32_t usage = X509_get_key_usage(cert);
    Tcl_Obj *listPtr = Tcl_NewListObj(0, NULL);

    if (listPtr == NULL) {
	return NULL;
    }

    if ((xflags & EXFLAG_XKUSAGE) && usage < UINT32_MAX) {
	usage = X509_get_extended_key_usage(cert);

	if (usage & XKU_SSL_SERVER) {
	    Tcl_ListObjAppendElement(interp, listPtr, Tcl_NewStringObj("TLS Web Server Authentication", -1));
	}
	if (usage & XKU_SSL_CLIENT) {
	    Tcl_ListObjAppendElement(interp, listPtr, Tcl_NewStringObj("TLS Web Client Authentication", -1));
	}
	if (usage & XKU_SMIME) {
	    Tcl_ListObjAppendElement(interp, listPtr, Tcl_NewStringObj("E-mail Protection", -1));
	}
	if (usage & XKU_CODE_SIGN) {
	    Tcl_ListObjAppendElement(interp, listPtr, Tcl_NewStringObj("Code Signing", -1));
	}
	if (usage & XKU_SGC) {
	    Tcl_ListObjAppendElement(interp, listPtr, Tcl_NewStringObj("SGC", -1));
	}
	if (usage & XKU_OCSP_SIGN) {
	    Tcl_ListObjAppendElement(interp, listPtr, Tcl_NewStringObj("OCSP Signing", -1));
	}
	if (usage & XKU_TIMESTAMP) {
	    Tcl_ListObjAppendElement(interp, listPtr, Tcl_NewStringObj("Time Stamping", -1));
	}
	if (usage & XKU_DVCS ) {
	    Tcl_ListObjAppendElement(interp, listPtr, Tcl_NewStringObj("DVCS", -1));
	}
	if (usage & XKU_ANYEKU) {
	    Tcl_ListObjAppendElement(interp, listPtr, Tcl_NewStringObj("Any Extended Key Usage", -1));
	}
    } else {
	    Tcl_ListObjAppendElement(interp, listPtr, Tcl_NewStringObj("unrestricted", -1));
    }
    return listPtr;
}

/*
 * Get CRL Distribution Points
 */
Tcl_Obj *Tls_x509CrlDp(Tcl_Interp *interp, X509 *cert) {
    STACK_OF(DIST_POINT) *crl;
    Tcl_Obj *listPtr = Tcl_NewListObj(0, NULL);

    if (listPtr == NULL) {
	return NULL;
    }

    if ((crl = X509_get_ext_d2i(cert, NID_crl_distribution_points, NULL, NULL)) != NULL) {
	for (int i=0; i < sk_DIST_POINT_num(crl); i++) {
	    DIST_POINT *dp = sk_DIST_POINT_value(crl, i);
	    DIST_POINT_NAME *distpoint = dp->distpoint;


	    if (distpoint->type == 0) {

		/* full-name GENERALIZEDNAME */
		for (int j = 0; j < sk_GENERAL_NAME_num(distpoint->name.fullname); j++) {
		    GENERAL_NAME *gen = sk_GENERAL_NAME_value(distpoint->name.fullname, j);
		    int type;
		    ASN1_STRING *uri = GENERAL_NAME_get0_value(gen, &type);
		    if (type == GEN_URI) {



			LAPPEND_STR(interp, listPtr, (char *) NULL, (char *) ASN1_STRING_get0_data(uri), (Tcl_Size) ASN1_STRING_length(uri));
		    }
		}
	    } else if (distpoint->type == 1) {
		/* relative-name X509NAME */
		STACK_OF(X509_NAME_ENTRY) *sk_relname = distpoint->name.relativename;
		for (int j = 0; j < sk_X509_NAME_ENTRY_num(sk_relname); j++) {
		    X509_NAME_ENTRY *e = sk_X509_NAME_ENTRY_value(sk_relname, j);
		    ASN1_STRING *d = X509_NAME_ENTRY_get_data(e);
		    LAPPEND_STR(interp, listPtr, (char *) NULL, (char *) ASN1_STRING_data(d), (Tcl_Size) ASN1_STRING_length(d));
		}
	    }
	}
	CRL_DIST_POINTS_free(crl);
    }
    return listPtr;
}


/*
 * Get On-line Certificate Status Protocol (OSCP) URL
 */
Tcl_Obj *Tls_x509Oscp(Tcl_Interp *interp, X509 *cert) {
    STACK_OF(OPENSSL_STRING) *ocsp;
    Tcl_Obj *listPtr = Tcl_NewListObj(0, NULL);

    if (listPtr == NULL) {
	return NULL;
    }


    if ((ocsp = X509_get1_ocsp(cert)) != NULL) {
	for (int i = 0; i < sk_OPENSSL_STRING_num(ocsp); i++) {
	    LAPPEND_STR(interp, listPtr, NULL, sk_OPENSSL_STRING_value(ocsp, i), -1);
	}
	X509_email_free(ocsp);
    }
    return listPtr;
}

/*
 * Get Certificate Authority (CA) Issuers URL
 */
Tcl_Obj *Tls_x509CaIssuers(Tcl_Interp *interp, X509 *cert) {
    STACK_OF(ACCESS_DESCRIPTION) *ads;
    ACCESS_DESCRIPTION *ad;
    Tcl_Obj *listPtr = Tcl_NewListObj(0, NULL);
    unsigned char *buf;
    int len;

    if ((ads = X509_get_ext_d2i(cert, NID_info_access, NULL, NULL)) != NULL) {
	for (int i = 0; i < sk_ACCESS_DESCRIPTION_num(ads); i++) {
	    ad = sk_ACCESS_DESCRIPTION_value(ads, i);
	    if (OBJ_obj2nid(ad->method) == NID_ad_ca_issuers && ad->location) {
		if (ad->location->type == GEN_URI) {
		    len = ASN1_STRING_to_UTF8(&buf, ad->location->d.uniformResourceIdentifier);
		    Tcl_ListObjAppendElement(interp, listPtr, Tcl_NewStringObj((char *) buf, (Tcl_Size) len));
		    OPENSSL_free(buf);
		    break;
		}
	    }
	}
	/* sk_ACCESS_DESCRIPTION_pop_free(ads, ACCESS_DESCRIPTION_free); */
	AUTHORITY_INFO_ACCESS_free(ads);
    }
    return listPtr;
}

/*
 *------------------------------------------------------*
 *
 *	Tls_NewX509Obj --
 *
 *	------------------------------------------------*
 *	Converts a X509 certificate into a Tcl_Obj
 *	------------------------------------------------*
 *
 *	Side effects:
 *		None
 *
 *	Result:
 *		A Tcl List Object representing the provided
 *		X509 certificate.
 *
 *------------------------------------------------------*
 */



Tcl_Obj*
Tls_NewX509Obj(
    Tcl_Interp *interp,
    X509 *cert)
{
    Tcl_Obj *certPtr = Tcl_NewListObj(0, NULL);
    BIO *bio = BIO_new(BIO_s_mem());
    int mdnid, pknid, bits, len;
    unsigned int ulen;

    uint32_t xflags;
    char buffer[BUFSIZ];
    unsigned char md[EVP_MAX_MD_SIZE];
    unsigned long flags = XN_FLAG_RFC2253 | ASN1_STRFLGS_UTF8_CONVERT;
    flags &= ~ASN1_STRFLGS_ESC_MSB;

    if (interp == NULL || cert == NULL || bio == NULL || certPtr == NULL) {
	return NULL;
    }

    /* Signature algorithm and value - RFC 5280 section 4.1.1.2 and 4.1.1.3 */
    /* signatureAlgorithm is the id of the cryptographic algorithm used by the
	CA to sign this cert. signatureValue is the digital signature computed

	upon the ASN.1 DER encoded tbsCertificate. */
    {
	const X509_ALGOR *sig_alg;
	const ASN1_BIT_STRING *sig;
	int sig_nid;



	X509_get0_signature(&sig, &sig_alg, cert);
	/* sig_nid = X509_get_signature_nid(cert) */
	sig_nid = OBJ_obj2nid(sig_alg->algorithm);
	LAPPEND_STR(interp, certPtr, "signatureAlgorithm", OBJ_nid2ln(sig_nid), -1);
	len = (sig_nid != NID_undef) ? String_to_Hex(sig->data, sig->length, (unsigned char *) buffer, BUFSIZ) : 0;
	LAPPEND_STR(interp, certPtr, "signatureValue", buffer, (Tcl_Size) len);
    }

    /* Version of the encoded certificate - RFC 5280 section 4.1.2.1 */
    LAPPEND_LONG(interp, certPtr, "version", X509_get_version(cert)+1);

    /* Unique number assigned by CA to certificate - RFC 5280 section 4.1.2.2 */
    len = BIO_to_Buffer(i2a_ASN1_INTEGER(bio, X509_get0_serialNumber(cert)), bio, buffer, BUFSIZ);
    LAPPEND_STR(interp, certPtr, "serialNumber", buffer, (Tcl_Size) len);

    /* Signature algorithm used by the CA to sign the certificate. Must match
	signatureAlgorithm. RFC 5280 section 4.1.2.3 */
    LAPPEND_STR(interp, certPtr, "signature", OBJ_nid2ln(X509_get_signature_nid(cert)), -1);

    /* Issuer identifies the entity that signed and issued the cert. RFC 5280 section 4.1.2.4 */
    len = BIO_to_Buffer(X509_NAME_print_ex(bio, X509_get_issuer_name(cert), 0, flags), bio, buffer, BUFSIZ);
    LAPPEND_STR(interp, certPtr, "issuer", buffer, (Tcl_Size) len);

    /* Certificate validity period is the interval the CA warrants that it will
	maintain info on the status of the certificate. RFC 5280 section 4.1.2.5 */
    /* Get Validity - Not Before */
    len = BIO_to_Buffer(ASN1_TIME_print(bio, X509_get0_notBefore(cert)), bio, buffer, BUFSIZ);
    LAPPEND_STR(interp, certPtr, "notBefore", buffer, (Tcl_Size) len);

    /* Get Validity - Not After */
    len = BIO_to_Buffer(ASN1_TIME_print(bio, X509_get0_notAfter(cert)), bio, buffer, BUFSIZ);
    LAPPEND_STR(interp, certPtr, "notAfter", buffer, (Tcl_Size) len);

    /* Subject identifies the entity associated with the public key stored in

	the subject public key field. RFC 5280 section 4.1.2.6 */
    len = BIO_to_Buffer(X509_NAME_print_ex(bio, X509_get_subject_name(cert), 0, flags), bio, buffer, BUFSIZ);
    LAPPEND_STR(interp, certPtr, "subject", buffer, (Tcl_Size) len);

    /* SHA1 Digest (Fingerprint) of cert - DER representation */
    if (X509_digest(cert, EVP_sha1(), md, &ulen)) {
    len = String_to_Hex(md, len, (unsigned char *) buffer, BUFSIZ);
	LAPPEND_STR(interp, certPtr, "sha1_hash", buffer, (Tcl_Size) ulen);
    }

    /* SHA256 Digest (Fingerprint) of cert - DER representation */
    if (X509_digest(cert, EVP_sha256(), md, &ulen)) {
    len = String_to_Hex(md, len, (unsigned char *) buffer, BUFSIZ);
	LAPPEND_STR(interp, certPtr, "sha256_hash", buffer, (Tcl_Size) ulen);
    }

    /* Subject Public Key Info specifies the public key and identifies the
	algorithm with which the key is used. RFC 5280 section 4.1.2.7 */
    if (X509_get_signature_info(cert, &mdnid, &pknid, &bits, &xflags)) {
	ASN1_BIT_STRING *key;
	unsigned int n;

	LAPPEND_STR(interp, certPtr, "signingDigest", OBJ_nid2ln(mdnid), -1);
	LAPPEND_STR(interp, certPtr, "publicKeyAlgorithm", OBJ_nid2ln(pknid), -1);
	LAPPEND_INT(interp, certPtr, "bits", bits); /* Effective security bits */

	key = X509_get0_pubkey_bitstr(cert);
	len = String_to_Hex(key->data, key->length, (unsigned char *) buffer, BUFSIZ);
	LAPPEND_STR(interp, certPtr, "publicKey", buffer, (Tcl_Size) len);


	len = 0;
	if (X509_pubkey_digest(cert, EVP_get_digestbynid(pknid), md, &n)) {
	    len = String_to_Hex(md, (int) n, (unsigned char *) buffer, BUFSIZ);
	}
	LAPPEND_STR(interp, certPtr, "publicKeyHash", buffer, (Tcl_Size) len);

	/* digest of the DER representation of the certificate */
	len = 0;

	if (X509_digest(cert, EVP_get_digestbynid(mdnid), md, &n)) {
	    len = String_to_Hex(md, (int) n, (unsigned char *) buffer, BUFSIZ);
	}
	LAPPEND_STR(interp, certPtr, "signatureHash", buffer, (Tcl_Size) len);
    }

    /* Certificate Purpose. Call before checking for extensions. */
    LAPPEND_STR(interp, certPtr, "purpose", Tls_x509Purpose(cert), -1);
    LAPPEND_OBJ(interp, certPtr, "certificatePurpose", Tls_x509Purposes(interp, cert));

    /* Get extensions flags */
    xflags = X509_get_extension_flags(cert);
    LAPPEND_INT(interp, certPtr, "extFlags", xflags);

	/* Check if cert was issued by CA cert issuer or self signed */
    LAPPEND_BOOL(interp, certPtr, "selfIssued", xflags & EXFLAG_SI);
    LAPPEND_BOOL(interp, certPtr, "selfSigned", xflags & EXFLAG_SS);
    LAPPEND_BOOL(interp, certPtr, "isProxyCert", xflags & EXFLAG_PROXY);
    LAPPEND_BOOL(interp, certPtr, "extInvalid", xflags & EXFLAG_INVALID);
    LAPPEND_BOOL(interp, certPtr, "isCACert", X509_check_ca(cert));

    /* The Unique Ids are used to handle the possibility of reuse of subject
	and/or issuer names over time. RFC 5280 section 4.1.2.8 */
    {


	const ASN1_BIT_STRING *iuid, *suid;
        X509_get0_uids(cert, &iuid, &suid);


	Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("issuerUniqueId", -1));
	if (iuid != NULL) {
	    Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewByteArrayObj((const unsigned char *)iuid->data, (Tcl_Size) iuid->length));
	} else {
	    Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("", -1));
	}

	Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("subjectUniqueId", -1));
	if (suid != NULL) {
	    Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewByteArrayObj((const unsigned char *)suid->data, (Tcl_Size) suid->length));
	} else {
	    Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("", -1));
	}


    }

    /* X509 v3 Extensions - RFC 5280 section 4.1.2.9 */
    LAPPEND_INT(interp, certPtr, "extCount", X509_get_ext_count(cert));
    LAPPEND_OBJ(interp, certPtr, "extensions", Tls_x509Extensions(interp, cert));

    /* Authority Key Identifier (AKI) is the Subject Key Identifier (SKI) of
	its signer (the CA). RFC 5280 section 4.2.1.1, NID_authority_key_identifier */
    LAPPEND_OBJ(interp, certPtr, "authorityKeyIdentifier",
	Tls_x509Identifier(X509_get0_authority_key_id(cert)));

    /* Subject Key Identifier (SKI) is used to identify certificates that contain
	a particular public key. RFC 5280 section 4.2.1.2, NID_subject_key_identifier */
    LAPPEND_OBJ(interp, certPtr, "subjectKeyIdentifier",
	Tls_x509Identifier(X509_get0_subject_key_id(cert)));

    /* Key usage extension defines the purpose (e.g., encipherment, signature, certificate
	signing) of the key in the certificate. RFC 5280 section 4.2.1.3, NID_key_usage */
    LAPPEND_OBJ(interp, certPtr, "keyUsage", Tls_x509KeyUsage(interp, cert, xflags));

    /* Certificate Policies - indicates the issuing CA considers its issuerDomainPolicy
	equivalent to the subject CA's subjectDomainPolicy. RFC 5280 section 4.2.1.4, NID_certificate_policies */
    if (xflags & EXFLAG_INVALID_POLICY) {
	/* Reject cert */
    }

    /* Policy Mappings - RFC 5280 section 4.2.1.5, NID_policy_mappings */

    /* Subject Alternative Name (SAN) contains additional URLs, DNS names, or IP
	addresses bound to certificate. RFC 5280 section 4.2.1.6, NID_subject_alt_name */
    LAPPEND_OBJ(interp, certPtr, "subjectAltName", Tls_x509Names(interp, cert, NID_subject_alt_name, bio));

    /* Issuer Alternative Name is used to associate Internet style identities
	with the certificate issuer. RFC 5280 section 4.2.1.7, NID_issuer_alt_name */
    LAPPEND_OBJ(interp, certPtr, "issuerAltName", Tls_x509Names(interp, cert, NID_issuer_alt_name, bio));






    /* Subject Directory Attributes provides identification attributes (e.g., nationality)
	of the subject. RFC 5280 section 4.2.1.8 (subjectDirectoryAttributes) */



    /* Basic Constraints identifies whether the subject of the cert is a CA and
	the max depth of valid cert paths for this cert. RFC 5280 section 4.2.1.9, NID_basic_constraints */
    if (!(xflags & EXFLAG_PROXY)) {
	LAPPEND_LONG(interp, certPtr, "pathLen", X509_get_pathlen(cert));
    } else {
	LAPPEND_LONG(interp, certPtr, "pathLen", X509_get_proxy_pathlen(cert));
    }

    LAPPEND_BOOL(interp, certPtr, "basicConstraintsCA", xflags & EXFLAG_CA);

    /* Name Constraints is only used in CA certs to indicate the name space for
	all subject names in subsequent certificates in a certification path
	MUST be located. RFC 5280 section 4.2.1.10, NID_name_constraints */


    /* Policy Constraints is only used in CA certs to limit the length of a
	cert chain for that CA. RFC 5280 section 4.2.1.11, NID_policy_constraints */

    /* Extended Key Usage indicates the purposes the certified public key may be
	used, beyond the basic purposes. RFC 5280 section 4.2.1.12, NID_ext_key_usage */
    LAPPEND_OBJ(interp, certPtr, "extendedKeyUsage", Tls_x509ExtKeyUsage(interp, cert, xflags));

    /* CRL Distribution Points identifies where CRL information can be obtained.
	RFC 5280 section 4.2.1.13*/
    LAPPEND_OBJ(interp, certPtr, "crlDistributionPoints", Tls_x509CrlDp(interp, cert));

    /* Freshest CRL extension */
    if (xflags & EXFLAG_FRESHEST) {
    }

    /* Authority Information Access indicates how to access info and services
	for the certificate issuer. RFC 5280 section 4.2.2.1, NID_info_access */



    /* Get On-line Certificate Status Protocol (OSCP) Responders URL */
    LAPPEND_OBJ(interp, certPtr, "ocspResponders", Tls_x509Oscp(interp, cert));

    /* Get Certificate Authority (CA) Issuers URL */
    LAPPEND_OBJ(interp, certPtr, "caIssuers", Tls_x509CaIssuers(interp, cert));

    /* Subject Information Access - RFC 5280 section 4.2.2.2, NID_sinfo_access */


    /* Certificate Alias. If uses a PKCS#12 structure, alias will reflect the
	friendlyName attribute (RFC 2985). */
    {
	len = 0;
        unsigned char *string = X509_alias_get0(cert, &len);
	LAPPEND_STR(interp, certPtr, "alias", (char *) string, (Tcl_Size) len);
        string = X509_keyid_get0(cert, &len);
	LAPPEND_STR(interp, certPtr, "keyId", (char *) string, (Tcl_Size) len);
    }

    /* Certificate and dump all data */
    {
	char certStr[CERT_STR_SIZE];

	/* Get certificate */
	len = BIO_to_Buffer(PEM_write_bio_X509(bio, cert), bio, certStr, CERT_STR_SIZE);
	LAPPEND_STR(interp, certPtr, "certificate", certStr, (Tcl_Size) len);

	/* Get all cert info */
	len = BIO_to_Buffer(X509_print_ex(bio, cert, flags, 0), bio, certStr, CERT_STR_SIZE);
	LAPPEND_STR(interp, certPtr, "all", certStr, (Tcl_Size) len);
    }

    BIO_free(bio);
    return certPtr;
}

Modified library/tls.tcl from [ebe93438e0] to [806ff9312a].

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    #### iopts: [tls::import] option
    ### How many arguments the following the option to consume
    variable socketOptionRules {
        {0 -async sopts 0}
        {* -myaddr sopts 1}
        {0 -myport sopts 1}
        {* -type sopts 1}

        {* -cadir iopts 1}
        {* -cafile iopts 1}
        {* -cert iopts 1}
        {* -certfile iopts 1}
        {* -cipher iopts 1}

        {* -command iopts 1}
        {* -dhparams iopts 1}
        {* -key iopts 1}
        {* -keyfile iopts 1}
        {* -password iopts 1}

        {* -request iopts 1}
        {* -require iopts 1}

        {* -autoservername discardOpts 1}

        {* -servername iopts 1}

        {* -ssl2 iopts 1}
        {* -ssl3 iopts 1}
        {* -tls1 iopts 1}
        {* -tls1.1 iopts 1}
        {* -tls1.2 iopts 1}
        {* -tls1.3 iopts 1}


    }

    # tls::socket and tls::init options as a humane readable string
    variable socketOptionsNoServer
    variable socketOptionsServer

    # Internal [switch] body to validate options







>





>





>


>

>

>






>
>







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    #### iopts: [tls::import] option
    ### How many arguments the following the option to consume
    variable socketOptionRules {
        {0 -async sopts 0}
        {* -myaddr sopts 1}
        {0 -myport sopts 1}
        {* -type sopts 1}
        {* -alpn iopts 1}
        {* -cadir iopts 1}
        {* -cafile iopts 1}
        {* -cert iopts 1}
        {* -certfile iopts 1}
        {* -cipher iopts 1}
        {* -ciphersuites iopts 1}
        {* -command iopts 1}
        {* -dhparams iopts 1}
        {* -key iopts 1}
        {* -keyfile iopts 1}
        {* -password iopts 1}
        {* -post_handshake iopts 1}
        {* -request iopts 1}
        {* -require iopts 1}
        {* -securitylevel iopts 1}
        {* -autoservername discardOpts 1}
        {* -server iopts 1}
        {* -servername iopts 1}
        {* -session_id iopts 1}
        {* -ssl2 iopts 1}
        {* -ssl3 iopts 1}
        {* -tls1 iopts 1}
        {* -tls1.1 iopts 1}
        {* -tls1.2 iopts 1}
        {* -tls1.3 iopts 1}
        {* -validatecommand iopts 1}
        {* -vcmd iopts 1}
    }

    # tls::socket and tls::init options as a humane readable string
    variable socketOptionsNoServer
    variable socketOptionsServer

    # Internal [switch] body to validate options
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	![string equal [lindex [file system $dir] 0] "native"]} {
	# If it is a wrapped executable running on windows, the openssl
	# dlls must be copied out of the virtual filesystem to the disk
	# where Windows will find them when resolving the dependency in
	# the tls dll. We choose to make them siblings of the executable.
	package require starkit
	set dst [file nativename [file dirname $starkit::topdir]]
	foreach sdll [glob -nocomplain -directory $dir -tails *eay32.dll] {
	    catch {file delete -force            $dst/$sdll}
	    catch {file copy   -force $dir/$sdll $dst/$sdll}
	}
    }
    set res [catch {uplevel #0 [list load [file join [pwd] $dll]]} err]
    catch {cd $cwd}
    if {$res} {







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	![string equal [lindex [file system $dir] 0] "native"]} {
	# If it is a wrapped executable running on windows, the openssl
	# dlls must be copied out of the virtual filesystem to the disk
	# where Windows will find them when resolving the dependency in
	# the tls dll. We choose to make them siblings of the executable.
	package require starkit
	set dst [file nativename [file dirname $starkit::topdir]]
	foreach sdll [glob -nocomplain -directory $dir -tails libssl32.dll libcrypto*.dll libssl*.dll libssp*.dll] {
	    catch {file delete -force            $dst/$sdll}
	    catch {file copy   -force $dir/$sdll $dst/$sdll}
	}
    }
    set res [catch {uplevel #0 [list load [file join [pwd] $dll]]} err]
    catch {cd $cwd}
    if {$res} {
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	log 1 "tls::_accept error: ${::errorInfo}"
	close $chan
	error $err $::errorInfo $::errorCode
    } else {
	log 2 "tls::_accept - called \"$callback\" succeeded"
    }
}

#
# Sample callback for hooking: -
#
# error
# verify
# info
#
proc tls::callback {option args} {
    variable debug

    #log 2 [concat $option $args]

    switch -- $option {
	"error"	{
	    foreach {chan msg} $args break

	    log 0 "TLS/$chan: error: $msg"
	}























































	"verify"	{
	    # poor man's lassign
	    foreach {chan depth cert rc err} $args break

	    array set c $cert

	    if {$rc != "1"} {
		log 1 "TLS/$chan: verify/$depth: Bad Cert: $err (rc = $rc)"
	    } else {
		log 2 "TLS/$chan: verify/$depth: $c(subject)"
	    }
	    if {$debug > 0} {
		return 1;	# FORCE OK
	    } else {
		return $rc
	    }
	}
	"info"	{
	    # poor man's lassign
	    foreach {chan major minor state msg} $args break

	    if {$msg != ""} {
		append state ": $msg"
	    }
	    # For tracing
	    upvar #0 tls::$chan cb
	    set cb($major) $minor

	    log 2 "TLS/$chan: $major/$minor: $state"
	}
	default	{
	    return -code error "bad option \"$option\":\
		    must be one of error, info, or verify"
	}
    }

}

proc tls::xhandshake {chan} {
    upvar #0 tls::$chan cb

    if {[info exists cb(handshake)] && \
	$cb(handshake) == "done"} {
	return 1
    }
    while {1} {
	vwait tls::${chan}(handshake)
	if {![info exists cb(handshake)]} {
	    return 0
	}
	if {$cb(handshake) == "done"} {
	    return 1
	}
    }
}

proc tls::password {} {
    log 0 "TLS/Password: did you forget to set your passwd!"
    # Return the worlds best kept secret password.
    return "secret"
}

proc tls::log {level msg} {
    variable debug







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	log 1 "tls::_accept error: ${::errorInfo}"
	close $chan
	error $err $::errorInfo $::errorCode
    } else {
	log 2 "tls::_accept - called \"$callback\" succeeded"
    }
}

#
# Sample callback for hooking: -
#
# error
# verify
# info
#
proc tls::callback {option args} {
    variable debug

    #log 2 [concat $option $args]

    switch -- $option {
	"error" {
	    foreach {chan msg} $args break

	    log 0 "TLS/$chan: error: $msg"
	}
	"info" {
	    # poor man's lassign
	    foreach {chan major minor msg type} $args break

	    if {$msg != ""} {
		append state ": $msg"
	    }
	    # For tracing
	    upvar #0 tls::$chan cb
	    set cb($major) $minor

	    log 2 "TLS/$chan: $major/$minor: $state"
	}
	"message" {
	    # poor man's lassign
	    foreach {chan direction version content_type msg} $args break

	    log 0 "TLS/$chan: info: $direction $msg"
	}
	"session" {
	    foreach {chan session_id ticket lifetime} $args break

	    log 0 "TLS/$chan: session: lifetime $lifetime"
	}
	default	{
	    return -code error "bad option \"$option\":\
		    must be one of error, info, or session"
	}
    }
}

#
# Sample callback when return value is needed
#
proc tls::validate_command {option args} {
    variable debug

    #log 2 [concat $option $args]

    switch -- $option {
	"alpn" {
	    foreach {chan protocol match} $args break

	    log 0 "TLS/$chan: alpn: $protocol $match"
	}
	"hello" {
	    foreach {chan servername} $args break

	    log 0 "TLS/$chan: hello: $servername"
	}
	"sni" {
	    foreach {chan servername} $args break

	    log 0 "TLS/$chan: sni: $servername"
	}
	"verify" {
	    # poor man's lassign
	    foreach {chan depth cert rc err} $args break

	    array set c $cert

	    if {$rc != "1"} {
		log 1 "TLS/$chan: verify/$depth: Bad Cert: $err (rc = $rc)"
	    } else {
		log 2 "TLS/$chan: verify/$depth: $c(subject)"
	    }
	    if {$debug > 0} {
		return 1;	# FORCE OK
	    } else {
		return $rc
	    }
	}













	default	{
	    return -code error "bad option \"$option\":\
		    must be one of alpn, info, or verify"
	}
    }
    return 1
}

proc tls::xhandshake {chan} {
    upvar #0 tls::$chan cb

    if {[info exists cb(handshake)] && \
	$cb(handshake) == "done"} {
	return 1
    }
    while {1} {
	vwait tls::${chan}(handshake)
	if {![info exists cb(handshake)]} {
	    return 0
	}
	if {$cb(handshake) == "done"} {
	    return 1
	}
    }
}

proc tls::password {rwflag size} {
    log 0 "TLS/Password: did you forget to set your passwd!"
    # Return the worlds best kept secret password.
    return "secret"
}

proc tls::log {level msg} {
    variable debug

Added tests/README.txt version [dc27a7e2a2].

Modified tests/all.tcl from [b44ef18ced] to [b91d386182].

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# all.tcl --
#
# This file contains a top-level script to run all of the Tcl
# tests.  Execute it by invoking "source all.test" when running tcltest
# in this directory.
#
# Copyright (c) 1998-2000 by Ajuba Solutions.
# All rights reserved.
#
# RCS: @(#) $Id: all.tcl,v 1.5 2000/08/15 18:45:01 hobbs Exp $


#set auto_path [linsert $auto_path 0 [file normalize [file join [file dirname [info script]] ..]]]
set auto_path [linsert $auto_path 0 [file normalize [pwd]]]

if {[lsearch [namespace children] ::tcltest] == -1} {
    package require tcltest
    namespace import ::tcltest::*
}






set ::tcltest::testSingleFile false
set ::tcltest::testsDirectory [file dir [info script]]

# We should ensure that the testsDirectory is absolute.
# This was introduced in Tcl 8.3+'s tcltest, so we need a catch.
catch {::tcltest::normalizePath ::tcltest::testsDirectory}

puts stdout "Tests running in interp:  [info nameofexecutable]"

puts stdout "Tests running in working dir:  $::tcltest::testsDirectory"
if {[llength $::tcltest::skip] > 0} {
    puts stdout "Skipping tests that match:  $::tcltest::skip"
}
if {[llength $::tcltest::match] > 0} {
    puts stdout "Only running tests that match:  $::tcltest::match"
}


if {[llength $::tcltest::skipFiles] > 0} {
    puts stdout "Skipping test files that match:  $::tcltest::skipFiles"

}
if {[llength $::tcltest::matchFiles] > 0} {
    puts stdout "Only sourcing test files that match:  $::tcltest::matchFiles"
}

set timeCmd {clock format [clock seconds]}



puts stdout "Tests began at [eval $timeCmd]"


# source each of the specified tests
foreach file [lsort [::tcltest::getMatchingFiles]] {
    set tail [file tail $file]
    puts stdout $tail
    if {[catch {source $file} msg]} {
	puts stdout $msg
    }
}

# cleanup
puts stdout "\nTests ended at [eval $timeCmd]"
::tcltest::cleanupTests 1
return












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# all.tcl --
#
# This file contains a top-level script to run all of the Tcl
# tests.  Execute it by invoking "source all.test" when running tcltest
# in this directory.
#
# Copyright (c) 1998-2000 by Ajuba Solutions.
# All rights reserved.
#
# RCS: @(#) $Id: all.tcl,v 1.5 2000/08/15 18:45:01 hobbs Exp $

set path [file normalize [file dirname [file join [pwd] [info script]]]]
#set auto_path [linsert $auto_path 0 [file normalize [file join [file dirname [info script]] ..]]]
set auto_path [linsert $auto_path 0 [file dirname $path] [file normalize [pwd]]]

if {[lsearch [namespace children] ::tcltest] == -1} {
    package require tcltest
    namespace import ::tcltest::*
}

# Get common functions
if {[file exists [file join $path common.tcl]]} {
    source [file join $path common.tcl]
}

set ::tcltest::testSingleFile false
set ::tcltest::testsDirectory [file dir [info script]]

# We should ensure that the testsDirectory is absolute.
# This was introduced in Tcl 8.3+'s tcltest, so we need a catch.
catch {::tcltest::normalizePath ::tcltest::testsDirectory}


#
# Run all tests in current and any sub directories with an all.tcl file.






#
set exitCode 0
if {[package vsatisfies [package require tcltest] 2.5-]} {
    if {[::tcltest::runAllTests] == 1} {
	set exitCode 1
    }



} else {

    # Hook to determine if any of the tests failed. Then we can exit with the
    # proper exit code: 0=all passed, 1=one or more failed
    proc tcltest::cleanupTestsHook {} {
	variable numTests
	set exitCode [expr {$numTests(Total) == 0 || $numTests(Failed) > 0}]
    }

    ::tcltest::runAllTests




}

#  Exit code: 0=all passed, 1=one or more failed




exit $exitCode

Added tests/badssl.csv version [0bcd6b3e35].

Added tests/badssl.test version [4b748d171a].

Added tests/ciphers.csv version [f4aff3652a].

Modified tests/ciphers.test from [9bef3a5541] to [212c1bf055].

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# Commands covered:  tls::ciphers
#
# This file contains a collection of tests for one or more of the Tcl
# built-in commands.  Sourcing this file into Tcl runs the tests and
# generates output for errors.  No output means no errors were found.
#

# All rights reserved.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#

if {[lsearch [namespace children] ::tcltest] == -1} {
    package require tcltest
    namespace import ::tcltest::*
}


# The build dir is added as the first element of $PATH
package require tls

# One of these should == 1, depending on what type of ssl library
# tls was compiled against. (RSA BSAFE SSL-C or OpenSSL).

#


set ::tcltest::testConstraints(rsabsafe) 0

set ::tcltest::testConstraints(openssl) [string match "OpenSSL*" [tls::version]]





set ::EXPECTEDCIPHERS(rsabsafe) {
    EDH-DSS-RC4-SHA
    EDH-RSA-DES-CBC3-SHA
    EDH-DSS-DES-CBC3-SHA
    DES-CBC3-SHA
    RC4-SHA
    RC4-MD5
    EDH-RSA-DES-CBC-SHA
    EDH-DSS-DES-CBC-SHA
    DES-CBC-SHA

    EXP-EDH-DSS-DES-56-SHA

    EXP-EDH-DSS-RC4-56-SHA
    EXP-DES-56-SHA
    EXP-RC4-56-SHA
    EXP-EDH-RSA-DES-CBC-SHA
    EXP-EDH-DSS-DES-CBC-SHA
    EXP-DES-CBC-SHA
    EXP-RC2-CBC-MD5
    EXP-RC4-MD5
}




set ::EXPECTEDCIPHERS(openssl) {
    AES128-SHA
    AES256-SHA
    DES-CBC-SHA
    DES-CBC3-SHA
    DHE-DSS-AES128-SHA



    DHE-DSS-AES256-SHA
    DHE-DSS-RC4-SHA
    DHE-RSA-AES128-SHA
    DHE-RSA-AES256-SHA
    EDH-DSS-DES-CBC-SHA
    EDH-DSS-DES-CBC3-SHA
    EDH-RSA-DES-CBC-SHA
    EDH-RSA-DES-CBC3-SHA
    EXP-DES-CBC-SHA
    EXP-EDH-DSS-DES-CBC-SHA
    EXP-EDH-RSA-DES-CBC-SHA
    EXP-RC2-CBC-MD5
    EXP-RC4-MD5
    EXP1024-DES-CBC-SHA
    EXP1024-DHE-DSS-DES-CBC-SHA
    EXP1024-DHE-DSS-RC4-SHA

    EXP1024-RC2-CBC-MD5
    EXP1024-RC4-MD5
    EXP1024-RC4-SHA
    IDEA-CBC-SHA
    RC4-MD5
    RC4-SHA
}





set ::EXPECTEDCIPHERS(openssl0.9.8) {
    DHE-RSA-AES256-SHA
    DHE-DSS-AES256-SHA
    AES256-SHA
    EDH-RSA-DES-CBC3-SHA
    EDH-DSS-DES-CBC3-SHA
    DES-CBC3-SHA
    DHE-RSA-AES128-SHA
    DHE-DSS-AES128-SHA
    AES128-SHA
    IDEA-CBC-SHA
    RC4-SHA
    RC4-MD5
    EDH-RSA-DES-CBC-SHA
    EDH-DSS-DES-CBC-SHA
    DES-CBC-SHA
    EXP-EDH-RSA-DES-CBC-SHA
    EXP-EDH-DSS-DES-CBC-SHA
    EXP-DES-CBC-SHA
    EXP-RC2-CBC-MD5
    EXP-RC4-MD5
}




set version ""

if {[string match "OpenSSL*" [tls::version]]} {
   regexp {OpenSSL ([\d\.]+)} [tls::version] -> version

}
if {![info exists ::EXPECTEDCIPHERS(openssl$version)]} {
    set version ""



}





proc listcompare {wants haves} {
    array set want {}
    array set have {}
    foreach item $wants { set want($item) 1 }
    foreach item $haves { set have($item) 1 }
    foreach item [lsort -dictionary [array names have]] {
	if {[info exists want($item)]} {
	    unset want($item) have($item)
	}



    }
    if {[array size want] || [array size have]} {
	return [list MISSING [array names want] UNEXPECTED [array names have]]



    }



}

test ciphers-1.1 {Tls::ciphers for ssl3} {rsabsafe} {
    # This will fail if you compiled against OpenSSL.
    # Change the constraint setting above.
    listcompare $::EXPECTEDCIPHERS(rsabsafe) [tls::ciphers ssl3]
} {}

test ciphers-1.2 {Tls::ciphers for tls1} {rsabsafe} {
    # This will fail if you compiled against OpenSSL.
    # Change the constraint setting above.
    listcompare $::EXPECTEDCIPHERS(rsabsafe) [tls::ciphers tls1]
} {}

test ciphers-1.3 {Tls::ciphers for ssl3} {openssl} {
    # This will fail if you compiled against RSA bsafe or with a
    # different set of defines than the default.
    # Change the constraint setting above.
    listcompare $::EXPECTEDCIPHERS(openssl$version) [tls::ciphers ssl3]

} {}

# This version of the test is correct for OpenSSL only.
# An equivalent test for the RSA BSAFE SSL-C is earlier in this file.

test ciphers-1.4 {Tls::ciphers for tls1} {openssl} {
    # This will fail if you compiled against RSA bsafe or with a
    # different set of defines than the default.
    # Change the constraint setting in all.tcl
    listcompare $::EXPECTEDCIPHERS(openssl$version) [tls::ciphers tls1]
} {}





# cleanup
::tcltest::cleanupTests
return
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# Auto generated test cases for ciphers_and_protocols.csv





# Load Tcl Test package
if {[lsearch [namespace children] ::tcltest] == -1} {
	package require tcltest
	namespace import ::tcltest::*
}

set auto_path [concat [list [file dirname [file dirname [info script]]]] $auto_path]

package require tls


# Make sure path includes location of OpenSSL executable
if {[info exists ::env(OPENSSL)]} {set ::env(path) [string cat [file join $::env(OPENSSL) bin] ";" $::env(path)}

# Constraints
set protocols [list ssl2 ssl3 tls1 tls1.1 tls1.2 tls1.3]
foreach protocol $protocols {::tcltest::testConstraint $protocol 0}
foreach protocol [::tls::protocols] {::tcltest::testConstraint $protocol 1}
::tcltest::testConstraint OpenSSL [string match "OpenSSL*" [::tls::version]]
# Helper functions
proc lcompare {list1 list2} {set m "";set u "";foreach i $list1 {if {$i ni $list2} {lappend m $i}};foreach i $list2 {if {$i ni $list1} {lappend u $i}};return [list "missing" $m "unexpected" $u]}
proc exec_get {delim args} {return [split [exec openssl {*}$args] $delim]}
# Test protocols









test Protocols-1.1 {All} -body {

	lcompare $protocols [::tls::protocols]
    } -result {missing {ssl2 ssl3} unexpected {}}
# Test ciphers









test CiphersAll-2.1 {SSL2} -constraints {ssl2} -body {
	lcompare [exec_get ":" ciphers -ssl2] [::tls::ciphers ssl2]
    } -result {missing {} unexpected {}}







test CiphersAll-2.2 {SSL3} -constraints {ssl3} -body {
	lcompare [exec_get ":" ciphers -ssl3] [::tls::ciphers ssl3]
    } -result {missing {} unexpected {}}

test CiphersAll-2.3 {TLS1} -constraints {tls1} -body {
	lcompare [exec_get ":" ciphers -tls1] [::tls::ciphers tls1]
    } -result {missing {} unexpected {}}

test CiphersAll-2.4 {TLS1.1} -constraints {tls1.1} -body {
	lcompare [exec_get ":" ciphers -tls1_1] [::tls::ciphers tls1.1]
    } -result {missing {} unexpected {}}

test CiphersAll-2.5 {TLS1.2} -constraints {tls1.2} -body {
	lcompare [exec_get ":" ciphers -tls1_2] [::tls::ciphers tls1.2]
    } -result {missing {} unexpected {}}

test CiphersAll-2.6 {TLS1.3} -constraints {tls1.3} -body {
	lcompare [exec_get ":" ciphers -tls1_3] [::tls::ciphers tls1.3]
    } -result {missing {} unexpected {}}
# Test cipher descriptions







test CiphersDesc-3.1 {SSL2} -constraints {ssl2} -body {
	lcompare [exec_get "\r\n" ciphers -ssl2 -v] [split [string trim [::tls::ciphers ssl2 1]] \n]
    } -result {missing {} unexpected {}}

test CiphersDesc-3.2 {SSL3} -constraints {ssl3} -body {
	lcompare [exec_get "\r\n" ciphers -ssl3 -v] [split [string trim [::tls::ciphers ssl3 1]] \n]
    } -result {missing {} unexpected {}}




















test CiphersDesc-3.3 {TLS1} -constraints {tls1} -body {
	lcompare [exec_get "\r\n" ciphers -tls1 -v] [split [string trim [::tls::ciphers tls1 1]] \n]
    } -result {missing {} unexpected {}}


test CiphersDesc-3.4 {TLS1.1} -constraints {tls1.1} -body {
	lcompare [exec_get "\r\n" ciphers -tls1_1 -v] [split [string trim [::tls::ciphers tls1.1 1]] \n]

    } -result {missing {} unexpected {}}



test CiphersDesc-3.5 {TLS1.2} -constraints {tls1.2} -body {
	lcompare [exec_get "\r\n" ciphers -tls1_2 -v] [split [string trim [::tls::ciphers tls1.2 1]] \n]
    } -result {missing {} unexpected {}}

test CiphersDesc-3.6 {TLS1.3} -constraints {tls1.3} -body {
	lcompare [exec_get "\r\n" ciphers -tls1_3 -v] [split [string trim [::tls::ciphers tls1.3 1]] \n]
    } -result {missing {} unexpected {}}
# Test protocol specific ciphers










test CiphersSpecific-4.1 {SSL2} -constraints {ssl2} -body {
	lcompare [exec_get ":" ciphers -ssl2 -s] [::tls::ciphers ssl2 0 1]
    } -result {missing {} unexpected {}}



test CiphersSpecific-4.2 {SSL3} -constraints {ssl3} -body {
	lcompare [exec_get ":" ciphers -ssl3 -s] [::tls::ciphers ssl3 0 1]
    } -result {missing {} unexpected {}}

test CiphersSpecific-4.3 {TLS1} -constraints {tls1} -body {
	lcompare [exec_get ":" ciphers -tls1 -s] [::tls::ciphers tls1 0 1]
    } -result {missing {} unexpected {}}

test CiphersSpecific-4.4 {TLS1.1} -constraints {tls1.1} -body {



	lcompare [exec_get ":" ciphers -tls1_1 -s] [::tls::ciphers tls1.1 0 1]
    } -result {missing {} unexpected {}}



test CiphersSpecific-4.5 {TLS1.2} -constraints {tls1.2} -body {
	lcompare [exec_get ":" ciphers -tls1_2 -s] [::tls::ciphers tls1.2 0 1]
    } -result {missing {} unexpected {}}




test CiphersSpecific-4.6 {TLS1.3} -constraints {tls1.3} -body {
	lcompare [exec_get ":" ciphers -tls1_3 -s] [::tls::ciphers tls1.3 0 1]
    } -result {missing {} unexpected {}}
# Test version




test Version-5.1 {All} -body {



	::tls::version
    } -match {glob} -result {*}

test Version-5.2 {OpenSSL} -constraints {OpenSSL} -body {
	::tls::version
    } -match {glob} -result {OpenSSL*}

# Cleanup
::tcltest::cleanupTests
return

Added tests/common.tcl version [3f4b3346c0].

Modified tests/keytest1.tcl from [897f9f74ad] to [8c36976f30].

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#!/bin/sh
# The next line is executed by /bin/sh, but not tcl \
exec tclsh "$0" ${1+"$@"}

set auto_path [linsert $auto_path 0 [file normalize [file join [file dirname [info script]] ..]]]
package require tls

proc creadable {s} {
    puts "LINE=[gets $s]"
    after 2000


    exit
}

proc myserv {s args} {
    fileevent $s readable [list creadable $s]
}

close [file tempfile keyfile]
close [file tempfile certfile]

tls::misc req 1024 $keyfile $certfile [list C CCC ST STTT L LLLL O OOOO OU OUUUU CN CNNNN Email [email protected] days 730 serial 12]

tls::socket -keyfile $keyfile -certfile $certfile -server myserv 12300

puts "Now run keytest2.tcl"
vwait forever











>
>







|
|
>







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#!/bin/sh
# The next line is executed by /bin/sh, but not tcl \
exec tclsh "$0" ${1+"$@"}

set auto_path [linsert $auto_path 0 [file normalize [file join [file dirname [info script]] ..]]]
package require tls

proc creadable {s} {
    puts "LINE=[gets $s]"
    after 2000
    file delete -force $::keyfile
    file delete -force $::certfile
    exit
}

proc myserv {s args} {
    fileevent $s readable [list creadable $s]
}

close [file tempfile keyfile keyfile]
close [file tempfile certfile certfile]

tls::misc req 1024 $keyfile $certfile [list C CCC ST STTT L LLLL O OOOO OU OUUUU CN CNNNN Email [email protected] days 730 serial 12]

tls::socket -keyfile $keyfile -certfile $certfile -server myserv 12300

puts "Now run keytest2.tcl"
vwait forever

Modified tests/keytest2.tcl from [9ae291a22a] to [b3210d97a2].

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#! /usr/bin/env tclsh



set auto_path [linsert $auto_path 0 [file normalize [file join [file dirname [info script]] ..]]]
package require tls

set s [tls::socket 127.0.0.1 12300]
puts $s "A line"
flush $s
|
>
>







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#!/bin/sh
# The next line is executed by /bin/sh, but not tcl \
exec tclsh "$0" ${1+"$@"}

set auto_path [linsert $auto_path 0 [file normalize [file join [file dirname [info script]] ..]]]
package require tls

set s [tls::socket 127.0.0.1 12300]
puts $s "A line"
flush $s

Added tests/make_test_files.tcl version [7d136d6035].

Modified tests/tlsIO.test from [08483551ff] to [15d6345268].

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	    set doTestsWithRemoteServer 0
	} else {
	    set remoteServerIP 127.0.0.1
	    set remoteFile [file join [pwd] remote.tcl]
	    if {[catch {set remoteProcChan \
		    [open "|[list $::tcltest::tcltest $remoteFile \
		    -serverIsSilent -port $remoteServerPort \
		    -address $remoteServerIP] 2> /dev/null" w+]} msg] == 0} {
		after 1000
		if {[catch {set commandSocket [tls::socket -cafile $caCert \
			-certfile $clientCert -keyfile $clientKey \
			$remoteServerIP $remoteServerPort]} msg] == 0} {
		    fconfigure $commandSocket -translation crlf -buffering line
		} else {
		    set noRemoteTestReason $msg







|







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	    set doTestsWithRemoteServer 0
	} else {
	    set remoteServerIP 127.0.0.1
	    set remoteFile [file join [pwd] remote.tcl]
	    if {[catch {set remoteProcChan \
		    [open "|[list $::tcltest::tcltest $remoteFile \
		    -serverIsSilent -port $remoteServerPort \
		    -address $remoteServerIP]" w+]} msg] == 0} {
		after 1000
		if {[catch {set commandSocket [tls::socket -cafile $caCert \
			-certfile $clientCert -keyfile $clientKey \
			$remoteServerIP $remoteServerPort]} msg] == 0} {
		    fconfigure $commandSocket -translation crlf -buffering line
		} else {
		    set noRemoteTestReason $msg
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	puts ready
	vwait x
	after cancel $timer
	close $f
	puts $x
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script] 2> /dev/null" r]
    gets $f x
    if {[catch {tls::socket -certfile $clientCert -cafile $caCert \
	-keyfile $clientKey 127.0.0.1 8828} msg]} {
        set x $msg
    } else {
        lappend x [gets $f]
        close $msg







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	puts ready
	vwait x
	after cancel $timer
	close $f
	puts $x
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script]" r]
    gets $f x
    if {[catch {tls::socket -certfile $clientCert -cafile $caCert \
	-keyfile $clientKey 127.0.0.1 8828} msg]} {
        set x $msg
    } else {
        lappend x [gets $f]
        close $msg
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	}
	puts ready
	vwait x
	after cancel $timer
	close $f
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script] 2> /dev/null" r]
    gets $f x
    global port
    if {[catch {tls::socket -myport $port \
	-certfile $clientCert -cafile $caCert \
	-keyfile $clientKey 127.0.0.1 8829} sock]} {
        set x $sock
	catch {close [tls::socket 127.0.0.1 8829]}







|







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	}
	puts ready
	vwait x
	after cancel $timer
	close $f
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script]" r]
    gets $f x
    global port
    if {[catch {tls::socket -myport $port \
	-certfile $clientCert -cafile $caCert \
	-keyfile $clientKey 127.0.0.1 8829} sock]} {
        set x $sock
	catch {close [tls::socket 127.0.0.1 8829]}
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	}
	puts ready
	vwait x
	after cancel $timer
	close $f
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script] 2> /dev/null" r]
    gets $f x
    if {[catch {tls::socket -myaddr 127.0.0.1 \
	-certfile $clientCert -cafile $caCert \
	-keyfile $clientKey 127.0.0.1 8830} sock]} {
        set x $sock
    } else {
        puts $sock hello







|







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	}
	puts ready
	vwait x
	after cancel $timer
	close $f
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script]" r]
    gets $f x
    if {[catch {tls::socket -myaddr 127.0.0.1 \
	-certfile $clientCert -cafile $caCert \
	-keyfile $clientKey 127.0.0.1 8830} sock]} {
        set x $sock
    } else {
        puts $sock hello
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	}
	puts ready
	vwait x
	after cancel $timer
	close $f
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script] 2> /dev/null" r]
    gets $f x
    if {[catch {tls::socket -certfile $clientCert -cafile $caCert \
	-keyfile $clientKey localhost 8831} sock]} {
        set x $sock
    } else {
        puts $sock hello
	flush $sock







|







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	}
	puts ready
	vwait x
	after cancel $timer
	close $f
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script]" r]
    gets $f x
    if {[catch {tls::socket -certfile $clientCert -cafile $caCert \
	-keyfile $clientKey localhost 8831} sock]} {
        set x $sock
    } else {
        puts $sock hello
	flush $sock
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	}
	puts ready
	vwait x
	after cancel $timer
	close $f
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script] 2> /dev/null" r]
    gets $f x
    if {[catch {tls::socket -certfile $clientCert -cafile $caCert \
	-keyfile $clientKey 127.0.0.1 8832} sock]} {
        set x $sock
    } else {
        puts $sock hello
	flush $sock







|







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	}
	puts ready
	vwait x
	after cancel $timer
	close $f
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script]" r]
    gets $f x
    if {[catch {tls::socket -certfile $clientCert -cafile $caCert \
	-keyfile $clientKey 127.0.0.1 8832} sock]} {
        set x $sock
    } else {
        puts $sock hello
	flush $sock
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	puts ready
	vwait x
	after cancel $timer
	close $f
	puts done
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script] 2> /dev/null" r]
    gets $f
    set s [tls::socket -certfile $clientCert -cafile $caCert \
	-keyfile $clientKey 127.0.0.1 8834]
    fconfigure $s -buffering line -translation lf
    puts $s "hello abcdefghijklmnop"
    after 1000
    set x [gets $s]







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	puts ready
	vwait x
	after cancel $timer
	close $f
	puts done
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script]" r]
    gets $f
    set s [tls::socket -certfile $clientCert -cafile $caCert \
	-keyfile $clientKey 127.0.0.1 8834]
    fconfigure $s -buffering line -translation lf
    puts $s "hello abcdefghijklmnop"
    after 1000
    set x [gets $s]
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	set timer [after 20000 "set x done"]
	vwait x
	after cancel $timer
	close $f
	puts "done $i"
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script] 2> /dev/null" r]
    gets $f
    set s [tls::socket -certfile $clientCert -cafile $caCert \
	-keyfile $clientKey 127.0.0.1 8835]
    fconfigure $s -buffering line
    catch {
	for {set x 0} {$x < 50} {incr x} {
	    puts $s "hello abcdefghijklmnop"







|







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	set timer [after 20000 "set x done"]
	vwait x
	after cancel $timer
	close $f
	puts "done $i"
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script]" r]
    gets $f
    set s [tls::socket -certfile $clientCert -cafile $caCert \
	-keyfile $clientKey 127.0.0.1 8835]
    fconfigure $s -buffering line
    catch {
	for {set x 0} {$x < 50} {incr x} {
	    puts $s "hello abcdefghijklmnop"
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	puts ready
	vwait x
	after cancel $timer
	close $f
	puts $x
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script] 2> /dev/null" r]
    gets $f x
    if {[catch {tls::socket 127.0.0.1 8828} msg]} {
        set x $msg
    } else {
        lappend x [gets $f]
        close $msg
    }







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	puts ready
	vwait x
	after cancel $timer
	close $f
	puts $x
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script]" r]
    gets $f x
    if {[catch {tls::socket 127.0.0.1 8828} msg]} {
        set x $msg
    } else {
        lappend x [gets $f]
        close $msg
    }
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    puts $f "set f \[tls::socket -server accept -certfile $serverCert -cafile $caCert -keyfile $serverKey 8828 \]"
    puts $f {
	puts ready
	gets stdin
	close $f
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script] 2> /dev/null" r+]
    gets $f
    set x [list [catch {tls::socket \
	    -certfile $clientCert -cafile $caCert -keyfile $clientKey \
    	-server accept 8828} msg] \
		$msg]
    puts $f bye
    close $f







|







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    puts $f "set f \[tls::socket -server accept -certfile $serverCert -cafile $caCert -keyfile $serverKey 8828 \]"
    puts $f {
	puts ready
	gets stdin
	close $f
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script]" r+]
    gets $f
    set x [list [catch {tls::socket \
	    -certfile $clientCert -cafile $caCert -keyfile $clientKey \
    	-server accept 8828} msg] \
		$msg]
    puts $f bye
    close $f
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	after cancel $t2
	vwait x
	after cancel $t3
	close $s
	puts $x
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script] 2> /dev/null" r+]
    set x [gets $f]
    set s1 [tls::socket \
	    -certfile $clientCert -cafile $caCert -keyfile $clientKey \
	    127.0.0.1 8828]
    fconfigure $s1 -buffering line
    set s2 [tls::socket \
	    -certfile $clientCert -cafile $caCert -keyfile $clientKey \







|







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	after cancel $t2
	vwait x
	after cancel $t3
	close $s
	puts $x
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script]" r+]
    set x [gets $f]
    set s1 [tls::socket \
	    -certfile $clientCert -cafile $caCert -keyfile $clientKey \
	    127.0.0.1 8828]
    fconfigure $s1 -buffering line
    set s2 [tls::socket \
	    -certfile $clientCert -cafile $caCert -keyfile $clientKey \
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	    gets $s
	}
	close $s
	puts bye
	gets stdin
    }
    close $f
    set p1 [open "|[list $::tcltest::tcltest script] 2> /dev/null" r+]
    fconfigure $p1 -buffering line
    set p2 [open "|[list $::tcltest::tcltest script] 2> /dev/null" r+]
    fconfigure $p2 -buffering line
    set p3 [open "|[list $::tcltest::tcltest script] 2> /dev/null" r+]
    fconfigure $p3 -buffering line
    proc accept {s a p} {
	fconfigure $s -buffering line
	fileevent $s readable [list echo $s]
    }
    proc echo {s} {
	global x







|

|

|







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	    gets $s
	}
	close $s
	puts bye
	gets stdin
    }
    close $f
    set p1 [open "|[list $::tcltest::tcltest script]" r+]
    fconfigure $p1 -buffering line
    set p2 [open "|[list $::tcltest::tcltest script]" r+]
    fconfigure $p2 -buffering line
    set p3 [open "|[list $::tcltest::tcltest script]" r+]
    fconfigure $p3 -buffering line
    proc accept {s a p} {
	fconfigure $s -buffering line
	fileevent $s readable [list echo $s]
    }
    proc echo {s} {
	global x
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    puts $f [list set auto_path $auto_path]
    puts $f {
    	package require tls
	gets stdin
    }
    puts $f [list tls::socket -cafile $caCert 127.0.0.1 8848]
    close $f
    set f [open "|[list $::tcltest::tcltest script] 2> /dev/null" r+]
    proc bgerror args {
	global x
	set x $args
    }
    proc accept {s a p} {expr 10 / 0}
    set s [tls::socket -server accept \
	    -certfile $serverCert -cafile $caCert -keyfile $serverKey 8848]







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    puts $f [list set auto_path $auto_path]
    puts $f {
    	package require tls
	gets stdin
    }
    puts $f [list tls::socket -cafile $caCert 127.0.0.1 8848]
    close $f
    set f [open "|[list $::tcltest::tcltest script]" r+]
    proc bgerror args {
	global x
	set x $args
    }
    proc accept {s a p} {expr 10 / 0}
    set s [tls::socket -server accept \
	    -certfile $serverCert -cafile $caCert -keyfile $serverKey 8848]
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	}
	puts ready
	set timer [after 10000 "set x timed_out"]
	vwait x
	after cancel $timer
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script] 2> /dev/null" r]
    gets $f
    set s [tls::socket \
	    -certfile $clientCert -cafile $caCert -keyfile $clientKey \
	    127.0.0.1 8820]
    set p [fconfigure $s -peername]
    close $s
    close $f







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	}
	puts ready
	set timer [after 10000 "set x timed_out"]
	vwait x
	after cancel $timer
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script]" r]
    gets $f
    set s [tls::socket \
	    -certfile $clientCert -cafile $caCert -keyfile $clientKey \
	    127.0.0.1 8820]
    set p [fconfigure $s -peername]
    close $s
    close $f
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	}
	puts ready
	set timer [after 10000 "set x timed_out"]
	vwait x
	after cancel $timer
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script] 2> /dev/null" r]
    gets $f
    set s [tls::socket \
	    -certfile $clientCert -cafile $caCert -keyfile $clientKey \
	    127.0.0.1 8821]
    set p [fconfigure $s -sockname]
    close $s
    close $f







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	}
	puts ready
	set timer [after 10000 "set x timed_out"]
	vwait x
	after cancel $timer
    }
    close $f
    set f [open "|[list $::tcltest::tcltest script]" r]
    gets $f
    set s [tls::socket \
	    -certfile $clientCert -cafile $caCert -keyfile $clientKey \
	    127.0.0.1 8821]
    set p [fconfigure $s -sockname]
    close $s
    close $f
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    # return the channel to line buffering mode (TLS sets it to 'none').
    fconfigure $s1 -blocking 0 -buffering line
    vwait x
    # TLS handshaking needs one byte from the client...
    puts $s1 a
    # need update to complete TLS handshake in-process
    update

    set z [gets $s1]
    close $s
    close $s1
    set z
} bye

test tlsIO-9.1 {testing spurious events} {socket} {







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    # return the channel to line buffering mode (TLS sets it to 'none').
    fconfigure $s1 -blocking 0 -buffering line
    vwait x
    # TLS handshaking needs one byte from the client...
    puts $s1 a
    # need update to complete TLS handshake in-process
    update
    fconfigure $s1 -blocking 1
    set z [gets $s1]
    close $s
    close $s1
    set z
} bye

test tlsIO-9.1 {testing spurious events} {socket} {
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	}
    }
    proc accept {s a p} {
	fconfigure $s -blocking 0
	fileevent $s readable [list do_handshake $s readable readlittle \
		-buffering none]
    }
    set s [tls::socket \
	    -certfile $serverCert -cafile $caCert -keyfile $serverKey \
	    -server accept 8831]
    set c [tls::socket \
	    -certfile $clientCert -cafile $caCert -keyfile $clientKey \
	    localhost 8831]
    # only the client gets tls::import
    set res [tls::unimport $c]
    list $res [catch {close $c} err] $err \
	[catch {close $s} err] $err
} {{} 0 {} 0 {}}








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	}
    }
    proc accept {s a p} {
	fconfigure $s -blocking 0
	fileevent $s readable [list do_handshake $s readable readlittle \
		-buffering none]
    }

    set s [tls::socket -certfile $serverCert -cafile $caCert -keyfile $serverKey \
	    -server accept 8831]

    set c [tls::socket -certfile $clientCert -cafile $caCert -keyfile $clientKey \
	    localhost 8831]
    # only the client gets tls::import
    set res [tls::unimport $c]
    list $res [catch {close $c} err] $err \
	[catch {close $s} err] $err
} {{} 0 {} 0 {}}

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        set ::done $msg
    }
    # NOTE: when doing an in-process client/server test, both sides need
    # to be non-blocking for the TLS handshake

    # Server - Only accept TLS 1.2
    set s [tls::socket \
               -certfile $serverCert -cafile $caCert -keyfile $serverKey \
               -request 0 -require 0 -ssl2 0 -ssl3 0 -tls1 0 -tls1.1 0 -tls1.2 1 \
               -server Accept 8831]
    # Client - Only propose TLS1.0
    set c [tls::socket -async \
               -cafile $caCert \
               -request 0 -require 0 -ssl2 0 -ssl3 0 -tls1 1 -tls1.1 0 -tls1.2 0 \
               localhost 8831]
    fconfigure $c -blocking 0
    puts $c a ; flush $c
    after 5000 [list set ::done timeout]
    vwait ::done
    switch -exact -- $::done {
        "handshake failed: wrong ssl version" -
        "handshake failed: unsupported protocol" {







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        set ::done $msg
    }
    # NOTE: when doing an in-process client/server test, both sides need
    # to be non-blocking for the TLS handshake

    # Server - Only accept TLS 1.2
    set s [tls::socket \
        -certfile $serverCert -cafile $caCert -keyfile $serverKey -request 0 \
	-require 0 -ssl2 0 -ssl3 0 -tls1 0 -tls1.1 0 -tls1.2 1 -tls1.3 0 \
        -server Accept 8831]
    # Client - Only propose TLS1.0
    set c [tls::socket -async -cafile $caCert -request 0 -require 0 \

	-ssl2 0 -ssl3 0 -tls1 1 -tls1.1 0 -tls1.2 0 -tls1.3 0 localhost 8831]

    fconfigure $c -blocking 0
    puts $c a ; flush $c
    after 5000 [list set ::done timeout]
    vwait ::done
    switch -exact -- $::done {
        "handshake failed: wrong ssl version" -
        "handshake failed: unsupported protocol" {

Modified win/README.txt from [a5d881083e] to [9a1eb98644].

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	Windows DLL Build instructions using nmake build system
	2020-10-15 [email protected]
	2023-08-22 Kevin Walzer ([email protected])

Properties:
- 64 bit DLL
- VisualStudio 2019




- WSL

- OpenSSL dynamically linked to TCLTLS DLL. We used a freely redistributable build of OpenSSL from https://www.firedaemon.com/firedaemon-openssl. Unzip and install OpenSSL in an accessible place (we used the lib subdirectory of our Tcl installation).





1. Visual Studio x64 native prompt. Update environmental variables for building Tcltls. Customize the below entries for your setup.



set PATH=%PATH%;C:\tcl-trunk\lib\openssl-3\x64\bin

set INCLUDE=%INCLUDE%;C:\tcl-trunk\tcl\lib\openssl-3\x64\include\openssl

set LIB=%LIB%;C:\tcl-trunk\tcl\lib\openssl-3\x64\bin
















2) Build TCLTLS




-> Unzip distribution on your system.

-> Start WSL.

-> cd /mnt/c/path/to/tcltls




./gen_dh_params > dh_params.h



od -A n -v -t xC < 'tls.tcl' > tls.tcl.h.new.1
sed 's@[^0-9A-Fa-f]@@g;s@..@0x&, @g' < tls.tcl.h.new.1 > tls.tcl.h
rm -f tls.tcl.h.new.1

-> Visual Studio x64 native prompt.

cd C:path\to\tcltls\win

Run the following commands (modify the flags to your specific installations).

nmake -f makefile.vc TCLDIR=c:\users\wordt\tcl INSTALLDIR=c:\tcl-trunk\tcl\lib SSL_INSTALL_FOLDER=C:\tcl-trunk\tcl\lib\openssl-3\x64

nmake -f makefile.vc TCLDIR=c:\users\wordt\tcl INSTALLDIR=c:\tcl-trunk\tcl\lib SSL_INSTALL_FOLDER=C:\tcl-trunk\tcl\lib\openssl-3\x64 install

The resulting installation will include both the tcltls package and also have libcrypto.dll and libssl.dll copied into the same directory.

3) Test

Start tclsh

package require tls
package require http
http::register https 443 [list ::tls::socket -autoservername true]
set tok [http::data [http::geturl https://www.tcl-lang.org]]



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	Windows DLL Build instructions using nmake build system
	2020-10-15 [email protected]
	2023-04-23 Brian O'Hagan

Properties:
- 64 bit DLL
- VisualStudio 2015
Note: Visual C++ 6 does not build OpenSSL (long long syntax error)
- Cygwin32 (temporary helper, please help to replace by tclsh)
- OpenSSL statically linked to TCLTLS DLL.
Note: Dynamic linking also works but results in a DLL dependency on OPENSSL DLL's

-----------------------------

1) Build OpenSSL static libraries:

set SSLBUILD=\path\to\build\dir
set SSLINSTALL=\path\to\install\dir
set SSLCOMMON=\path\to\common\dir

(1a) Get OpenSSL

  https://github.com/openssl/openssl/releases/download/OpenSSL_1_1_1t/openssl-1.1.1t.tar.gz

  Unpack OpenSSL source distribution to %SSLBUILD%

(1b) Install Perl from https://strawberryperl.com/

  https://strawberryperl.com/download/5.32.1.1/strawberry-perl-5.32.1.1-64bit.msi
  Install to C:\Strawberry\perl

(1c) Install NASM Assembler from https://www.nasm.us/

  https://www.nasm.us/pub/nasm/releasebuilds/2.16.01/win64/nasm-2.16.01-installer-x64.exe
  Install to: C:\Program Files\NASM

(1d) Configure

  At Visual Studio x86 native prompt:

  set Path=%PATH%;C:\Program Files\NASM;C:\Strawberry\perl\bin
  perl ..\Configure VC-WIN64A no-shared no-filenames threads no-ssl2 no-ssl3 --api=1.1.0 --prefix="%SSLINSTALL%" --openssldir="%SSLCOMMON%" -DOPENSSL_NO_DEPRECATED
  # Not used options: no-asm no-zlib no-comp no-ui-console no-autoload-config

(1e) Build OpenSSL

  nmake
  nmake test
  nmake install

-----------------------------

2) Build TclTLS

set BUILDDIR=\path\to\build\dir
set TCLINSTALL=\path\to\tcl\dir

2a) Unzip distribution to %BUILDDIR%

2b) Start BASH shell (MinGW62 Git shell)

cd %BUILDDIR%
od -A n -v -t xC < 'library/tls.tcl' > tls.tcl.h.new.1
sed 's@[^0-9A-Fa-f]@@g;s@..@0x&, @g' < tls.tcl.h.new.1 > generic/tls.tcl.h
rm -f tls.tcl.h.new.1

2c) Start Visual Studio shell

cd %BUILDDIR%\win


nmake -f makefile.vc TCLDIR=%TCLINSTALL% SSL_INSTALL_FOLDER=%SSLINSTALL%
nmake -f makefile.vc install TCLDIR=c:\test\tcl8610 INSTALLDIR=%TCLINSTALL% SSL_INSTALL_FOLDER=%SSLINSTALL%


-----------------------------


3) Test

Start tclsh or wish

package require tls
package require http
http::register https 443 [list ::tls::socket -autoservername true]
set tok [http::data [http::geturl https://www.tcl-lang.org]]
::http::cleanup $tok