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static int MiscObjCmd(ClientData clientData,
Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]);
static int UnimportObjCmd(ClientData clientData,
Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]);
static SSL_CTX *CTX_Init(State *statePtr, int isServer, int proto, char *key,
char *cert, unsigned char *key_asn1, unsigned char *cert_asn1,
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
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SSL_CTX *ctx = NULL;
Tcl_Obj *script = NULL;
Tcl_Obj *password = NULL;
Tcl_DString upperChannelTranslation, upperChannelBlocking, upperChannelEncoding, upperChannelEOFChar;
int idx, len;
int flags = TLS_TCL_INIT;
int server = 0; /* is connection incoming or outgoing? */
char *key = NULL;
char *cert = NULL;
unsigned char *key_asn1 = NULL;
int key_asn1_len = 0;
unsigned char *cert_asn1 = NULL;
int cert_asn1_len = 0;
char *keyfile = NULL;
char *certfile = NULL;
unsigned char *key = NULL;
int key_len = 0;
unsigned char *cert = NULL;
int 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 */
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char *opt = Tcl_GetStringFromObj(objv[idx], NULL);
if (opt[0] != '-')
break;
OPTSTR( "-cadir", CAdir);
OPTSTR( "-cafile", CAfile);
OPTSTR( "-certfile", cert);
OPTSTR( "-certfile", certfile);
OPTSTR( "-cipher", ciphers);
OPTOBJ( "-command", script);
OPTSTR( "-dhparams", DHparams);
OPTSTR( "-keyfile", key);
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_asn1, cert_asn1_len);
OPTBYTE("-key", key_asn1, key_asn1_len);
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 (cert_asn1 && !*cert_asn1) cert_asn1 = NULL;
if (key_asn1 && !*key_asn1) key_asn1 = 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));
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Tcl_AppendResult(interp, "bad channel \"",
Tcl_GetChannelName(chan), "\": not a TLS channel", NULL);
Tls_Free((char *) statePtr);
return TCL_ERROR;
}
ctx = ((State *)Tcl_GetChannelInstanceData(chan))->ctx;
} else {
if ((ctx = CTX_Init(statePtr, server, proto, key, cert, key_asn1,
cert_asn1, key_asn1_len, cert_asn1_len, CAdir, CAfile, ciphers,
if ((ctx = CTX_Init(statePtr, server, proto, keyfile, certfile, key,
cert, key_len, cert_len, CAdir, CAfile, ciphers,
DHparams)) == (SSL_CTX*)0) {
Tls_Free((char *) statePtr);
return TCL_ERROR;
}
}
statePtr->ctx = ctx;
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* Side effects:
* constructs SSL context (CTX)
*
*-------------------------------------------------------------------
*/
static SSL_CTX *
CTX_Init(statePtr, isServer, proto, key, cert, key_asn1, cert_asn1,
key_asn1_len, cert_asn1_len, CAdir, CAfile, ciphers, DHparams)
CTX_Init(statePtr, isServer, proto, keyfile, certfile, key, cert,
key_len, cert_len, CAdir, CAfile, ciphers, DHparams)
State *statePtr;
int isServer;
int proto;
char *key;
char *cert;
unsigned char *key_asn1;
unsigned char *cert_asn1;
int key_asn1_len;
int cert_asn1_len;
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;
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}
SSL_CTX_set_tmp_dh(ctx, dh);
DH_free(dh);
}
#endif
/* set our certificate */
if (cert != NULL) {
if (certfile != NULL) {
Tcl_DStringInit(&ds);
if (SSL_CTX_use_certificate_file(ctx, F2N( cert, &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 ", cert, ": ",
"unable to set certificate file ", certfile, ": ",
REASON(), (char *) NULL);
SSL_CTX_free(ctx);
return (SSL_CTX *)0;
}
/* get the private key associated with this certificate */
if (key == NULL) key=cert;
if (key == NULL) keyfile=certfile;
if (SSL_CTX_use_PrivateKey_file(ctx, F2N( key, &ds),
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 ", key, " ",
"unable to set public key file ", keyfile, " ",
REASON(), (char *) NULL);
SSL_CTX_free(ctx);
return (SSL_CTX *)0;
}
Tcl_DStringFree(&ds);
/* 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 (SSL_CTX *)0;
}
} else if (cert_asn1 != NULL) {
if (SSL_CTX_use_certificate_ASN1(ctx, cert_asn1_len, cert_asn1) <= 0) {
} else if (cert != NULL) {
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 (SSL_CTX *)0;
}
if (key_asn1 == NULL) {
key_asn1=cert_asn1;
key_asn1_len = cert_asn1_len;
if (key == NULL) {
key=cert;
key_len = cert_len;
}
if (SSL_CTX_use_PrivateKey_ASN1(EVP_PKEY_RSA, ctx, key_asn1,key_asn1_len) <= 0) {
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 (SSL_CTX *)0;
}
} else {
cert = (char*)X509_get_default_cert_file();
certfile = (char*)X509_get_default_cert_file();
if (SSL_CTX_use_certificate_file(ctx, cert,
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 ", cert, ": ",
"unable to use default certificate file ", certfile, ": ",
REASON(), (char *) NULL);
SSL_CTX_free(ctx);
return (SSL_CTX *)0;
#endif
}
}
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