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/*
* Copyright (C) 1997-1999 Matt Newman <[email protected]>
* some modifications:
* Copyright (C) 2000 Ajuba Solutions
* Copyright (C) 2002 ActiveState Corporation
* Copyright (C) 2004 Starfish Systems
* Copyright (C) 2004 Starfish Systems
*
* TLS (aka SSL) Channel - can be layered on any bi-directional
* Tcl_Channel (Note: Requires Trf Core Patch)
*
* This was built (almost) from scratch based upon observation of
* OpenSSL 0.9.2B
*
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* External functions
*/
/*
* Forward declarations
*/
#define F2N( key, dsp) \
#define F2N(key, dsp) \
(((key) == NULL) ? (char *) NULL : \
Tcl_TranslateFileName(interp, (key), (dsp)))
#define REASON() ERR_reason_error_string(ERR_get_error())
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);
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/*
* 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))
#define sk_SSL_CIPHER_value(sk, index) (SSL_CIPHER*)sk_value((sk), (index))
#endif
/*
* Thread-Safe TLS Code
*/
#ifdef TCL_THREADS
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static int locksCount = 0;
static Tcl_Mutex init_mx;
# if OPENSSL_VERSION_NUMBER < 0x10100000L
void CryptoThreadLockCallback(int mode, int n, const char *file, int line) {
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;
file = file;
line = line;
unsigned long ret;
dprintf("Called");
ret = (unsigned long) Tcl_GetCurrentThread();
dprintf("Returning %lu", ret);
return(ret);
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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 */
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";
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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_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewStringObj("info", -1));
Tcl_NewStringObj( "info", -1));
statePtr->interp, cmdPtr,
Tcl_NewStringObj( Tcl_GetChannelName(statePtr->self), -1) );
statePtr->interp, cmdPtr,
Tcl_NewStringObj( major, -1) );
statePtr->interp, cmdPtr,
Tcl_NewStringObj( minor, -1) );
Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
Tcl_NewStringObj( SSL_state_string_long(ssl), -1) );
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_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewStringObj(cp, -1));
Tcl_NewStringObj( cp, -1) );
Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
Tcl_NewStringObj( SSL_state_string_long(ssl), -1) );
Tcl_ListObjAppendElement(statePtr->interp, cmdPtr,
Tcl_NewStringObj(SSL_state_string_long(ssl), -1));
}
Tcl_Preserve( (ClientData) statePtr->interp);
Tcl_Preserve( (ClientData) statePtr);
Tcl_Preserve((ClientData) statePtr->interp);
Tcl_Preserve((ClientData) statePtr);
Tcl_IncrRefCount( cmdPtr);
Tcl_IncrRefCount(cmdPtr);
(void) Tcl_EvalObjEx(statePtr->interp, cmdPtr, TCL_EVAL_GLOBAL);
Tcl_DecrRefCount( cmdPtr);
Tcl_DecrRefCount(cmdPtr);
Tcl_Release( (ClientData) statePtr);
Tcl_Release( (ClientData) statePtr->interp);
Tcl_Release((ClientData) statePtr);
Tcl_Release((ClientData) statePtr->interp);
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return ok;
} else {
return 1;
}
}
cmdPtr = Tcl_DuplicateObj(statePtr->callback);
Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewStringObj("verify", -1));
Tcl_NewStringObj( "verify", -1));
statePtr->interp, cmdPtr,
Tcl_NewStringObj( Tcl_GetChannelName(statePtr->self), -1) );
statePtr->interp, cmdPtr,
Tcl_NewIntObj( depth) );
statePtr->interp, cmdPtr,
Tls_NewX509Obj( statePtr->interp, cert) );
statePtr->interp, cmdPtr,
Tcl_NewIntObj( ok) );
statePtr->interp, cmdPtr,
Tcl_NewStringObj( errStr ? errStr : "", -1) );
Tcl_Preserve( (ClientData) statePtr->interp);
Tcl_Preserve( (ClientData) statePtr);
Tcl_Preserve((ClientData) statePtr->interp);
Tcl_Preserve((ClientData) statePtr);
statePtr->flags |= TLS_TCL_CALLBACK;
Tcl_IncrRefCount( cmdPtr);
Tcl_IncrRefCount(cmdPtr);
code = Tcl_EvalObjEx(statePtr->interp, cmdPtr, TCL_EVAL_GLOBAL);
if (code != TCL_OK) {
/* It got an error - reject the certificate. */
#if (TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION < 6)
Tcl_BackgroundError(statePtr->interp);
#else
Tcl_BackgroundException(statePtr->interp, code);
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#else
Tcl_BackgroundException(statePtr->interp, code);
#endif
ok = 0;
}
}
}
Tcl_DecrRefCount( cmdPtr);
Tcl_DecrRefCount(cmdPtr);
statePtr->flags &= ~(TLS_TCL_CALLBACK);
Tcl_Release( (ClientData) statePtr);
Tcl_Release( (ClientData) statePtr->interp);
Tcl_Release((ClientData) statePtr);
Tcl_Release((ClientData) statePtr->interp);
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}
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_SetResult(statePtr->interp, buf, TCL_VOLATILE);
#if (TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION < 6)
Tcl_BackgroundError(statePtr->interp);
#else
Tcl_BackgroundException(statePtr->interp, TCL_ERROR);
#endif
return;
}
cmdPtr = Tcl_DuplicateObj(statePtr->callback);
Tcl_ListObjAppendElement(statePtr->interp, cmdPtr,
Tcl_ListObjAppendElement(statePtr->interp, cmdPtr,
Tcl_NewStringObj("error", -1));
Tcl_ListObjAppendElement(statePtr->interp, cmdPtr,
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);
code = Tcl_EvalObjEx(statePtr->interp, cmdPtr, TCL_EVAL_GLOBAL);
if (code != TCL_OK) {
#if (TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION < 6)
Tcl_BackgroundError(statePtr->interp);
#else
Tcl_BackgroundException(statePtr->interp, code);
#endif
}
Tcl_DecrRefCount(cmdPtr);
* PasswordCallback --
* 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(char *buf, int size, int verify) {
return -1;
buf = buf;
if (Tcl_EvalEx(interp, "tls::password", -1, TCL_EVAL_GLOBAL)
if (Tcl_EvalEx(interp, "tls::password", -1, TCL_EVAL_GLOBAL) == TCL_OK) {
== TCL_OK) {
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Tcl_DecrRefCount(cmdPtr);
Tcl_Release((ClientData) statePtr);
if (code == TCL_OK) {
char *ret = (char *) Tcl_GetStringResult(interp);
if (strlen(ret) < size - 1) {
strncpy(buf, ret, (size_t) size);
strncpy(buf, ret, (size_t) size);
Tcl_Release((ClientData) interp);
return (int)strlen(ret);
return (int)strlen(ret);
}
}
Tcl_Release((ClientData) interp);
return -1;
verify = verify;
}
#endif
/*
*-------------------------------------------------------------------
*
* CiphersObjCmd -- list available ciphers
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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,
if (Tcl_GetIndexFromObj(interp, objv[1], protocols, "protocol", 0, &index) != TCL_OK) {
&index) != TCL_OK) {
if ((objc > 2) && Tcl_GetBooleanFromObj( interp, objv[2],
if ((objc > 2) && Tcl_GetBooleanFromObj(interp, objv[2], &verbose) != TCL_OK) {
&verbose) != TCL_OK) {
case TLS_SSL2:
Tcl_AppendResult(interp, protocols[index], ": protocol not supported", NULL);
return TCL_ERROR;
Tcl_AppendResult(interp, protocols[index], ": protocol not supported", NULL);
return TCL_ERROR;
#else
ctx = SSL_CTX_new(SSLv2_method()); break;
ctx = SSL_CTX_new(SSLv2_method()); break;
#endif
case TLS_SSL3:
Tcl_AppendResult(interp, protocols[index], ": protocol not supported", NULL);
return TCL_ERROR;
Tcl_AppendResult(interp, protocols[index], ": protocol not supported", NULL);
return TCL_ERROR;
#else
ctx = SSL_CTX_new(SSLv3_method()); break;
ctx = SSL_CTX_new(SSLv3_method()); break;
#endif
case TLS_TLS1:
Tcl_AppendResult(interp, protocols[index], ": protocol not supported", NULL);
return TCL_ERROR;
Tcl_AppendResult(interp, protocols[index], ": protocol not supported", NULL);
return TCL_ERROR;
#else
ctx = SSL_CTX_new(TLSv1_method()); break;
ctx = SSL_CTX_new(TLSv1_method()); break;
#endif
case TLS_TLS1_1:
Tcl_AppendResult(interp, protocols[index], ": protocol not supported", NULL);
return TCL_ERROR;
Tcl_AppendResult(interp, protocols[index], ": protocol not supported", NULL);
return TCL_ERROR;
#else
ctx = SSL_CTX_new(TLSv1_1_method()); break;
ctx = SSL_CTX_new(TLSv1_1_method()); break;
#endif
case TLS_TLS1_2:
Tcl_AppendResult(interp, protocols[index], ": protocol not supported", NULL);
return TCL_ERROR;
Tcl_AppendResult(interp, protocols[index], ": protocol not supported", NULL);
return TCL_ERROR;
#else
ctx = SSL_CTX_new(TLSv1_2_method()); break;
ctx = SSL_CTX_new(TLSv1_2_method()); break;
#endif
case TLS_TLS1_3:
Tcl_AppendResult(interp, protocols[index], ": protocol not supported", NULL);
return TCL_ERROR;
Tcl_AppendResult(interp, protocols[index], ": protocol not supported", NULL);
return TCL_ERROR;
#else
ctx = SSL_CTX_new(TLS_method());
SSL_CTX_set_min_proto_version (ctx, TLS1_3_VERSION);
SSL_CTX_set_max_proto_version (ctx, TLS1_3_VERSION);
break;
ctx = SSL_CTX_new(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:
break;
objPtr = Tcl_NewListObj( 0, NULL);
objPtr = Tcl_NewListObj(0, NULL);
if (!verbose) {
for (index = 0; ; index++) {
cp = (char*)SSL_get_cipher_list( ssl, index);
cp = (char*)SSL_get_cipher_list(ssl, index);
if (cp == NULL) break;
Tcl_ListObjAppendElement( interp, objPtr,
Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(cp, -1));
Tcl_NewStringObj( cp, -1) );
SSL_CIPHER_description( sk_SSL_CIPHER_value( sk, index),
buf, sizeof(buf));
if ((buf[i] == ' ') || (buf[i] == '\n') ||
if ((buf[i] == ' ') || (buf[i] == '\n') || (buf[i] == '\r') || (buf[i] == '\t')) {
(buf[i] == '\r') || (buf[i] == '\t')) {
Tcl_ListObjAppendElement( interp, objPtr,
Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(buf, -1));
Tcl_NewStringObj( buf, -1) );
Tcl_SetObjResult( interp, objPtr);
Tcl_SetObjResult(interp, objPtr);
return TCL_OK;
clientData = clientData;
Tcl_Channel chan; /* The channel to set a mode on. */
State *statePtr; /* client state for ssl socket */
const char *errStr = NULL;
int ret = 1;
int err = 0;
dprintf("Called");
if (objc != 2) {
Tcl_WrongNumArgs(interp, 1, objv, "channel");
return(TCL_ERROR);
}
chan = Tcl_GetChannel(interp, Tcl_GetStringFromObj(objv[1], 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);
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;
}
dprintf("Returning TCL_OK with data \"%i\"", ret);
Tcl_SetObjResult(interp, Tcl_NewIntObj(ret));
return(TCL_OK);
clientData = clientData;
|
| ︙ | | |
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
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822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
|
771
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775
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777
778
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780
781
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784
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786
787
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793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
|
-
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
-
-
+
+
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
-
+
|
for (idx = 2; idx < objc; idx++) {
char *opt = Tcl_GetStringFromObj(objv[idx], NULL);
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);
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);
OPTOBJ( "-alpn", alpn);
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);
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", "-alpn, -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");
OPTBAD("option", "-alpn, -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;
|
| ︙ | | |
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
|
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
|
-
-
-
-
+
+
+
+
-
-
+
+
|
/* Get the "model" context */
chan = Tcl_GetChannel(interp, model, &mode);
if (chan == (Tcl_Channel) NULL) {
Tls_Free((char *) statePtr);
return TCL_ERROR;
}
/*
* Make sure to operate on the topmost channel
*/
chan = Tcl_GetTopChannel(chan);
Tcl_AppendResult(interp, "bad channel \"",
Tcl_GetChannelName(chan), "\": not a TLS channel", NULL);
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, keyfile, certfile, key, cert,
key_len, cert_len, CAdir, CAfile, ciphers, DHparams)) == (SSL_CTX*)0) {
|
| ︙ | | |
943
944
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946
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949
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953
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1007
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1009
1010
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1016
1017
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1020
1021
1022
1023
1024
1025
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1028
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1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
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1045
1046
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1050
1051
1052
1053
1054
1055
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1057
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1060
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1064
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1066
1067
|
914
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955
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961
962
963
964
965
966
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968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
|
-
-
+
-
-
-
+
+
-
-
+
-
-
+
-
-
-
-
-
-
+
+
-
+
-
|
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
*/
Tcl_AppendResult(interp, "couldn't construct ssl session: ", REASON(),
Tcl_AppendResult(interp, "couldn't construct ssl session: ", REASON(), (char *) NULL);
(char *) NULL);
if (!SSL_set_tlsext_host_name(statePtr->ssl, servername) && require) {
Tcl_AppendResult(interp, "setting TLS host name extension failed",
(char *) NULL);
Tcl_AppendResult(interp, "alpn protocol name too long",
Tcl_AppendResult(interp, "alpn protocol name too long", (char *) NULL);
(char *) NULL);
Tcl_AppendResult(interp, "failed to set alpn protocols",
Tcl_AppendResult(interp, "failed to set alpn protocols", (char *) NULL);
(char *) NULL);
Tcl_SetResult(interp, (char *) Tcl_GetChannelName(statePtr->self),
TCL_VOLATILE);
Tcl_SetResult(interp, (char *) Tcl_GetChannelName(statePtr->self), TCL_VOLATILE);
return TCL_OK;
clientData = clientData;
|
| ︙ | | |
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
|
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
|
-
+
-
|
}
if (Tcl_UnstackChannel(interp, chan) == TCL_ERROR) {
return TCL_ERROR;
}
return TCL_OK;
clientData = clientData;
|
| ︙ | | |
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
|
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
|
-
-
-
-
-
+
+
+
+
+
-
+
-
+
|
#if !defined(NO_TLS1_2) && !defined(OPENSSL_NO_TLS1_2)
case TLS_PROTO_TLS1_2:
method = TLSv1_2_method();
break;
#endif
#if !defined(NO_TLS1_3) && !defined(OPENSSL_NO_TLS1_3)
case TLS_PROTO_TLS1_3:
/*
* The version range is constrained below,
* after the context is created. Use the
* generic method here.
*/
method = TLS_method();
method = SSLv23_method();
|
| ︙ | | |
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
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1255
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1257
1258
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1271
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1301
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1363
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1367
1368
1369
1370
1371
1372
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1375
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1377
1378
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1383
1384
1385
1386
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1389
1390
1391
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1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
|
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
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1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
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1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
|
-
+
-
+
-
-
+
+
-
-
-
-
+
+
+
+
-
+
-
-
+
-
-
+
-
+
-
-
+
-
+
-
-
-
+
-
+
-
-
+
-
-
-
+
-
+
-
-
+
-
+
-
+
-
-
-
-
+
-
+
-
-
-
-
-
+
+
+
+
|
off |= (ENABLED(proto, TLS_PROTO_TLS1_2) ? 0 : SSL_OP_NO_TLSv1_2);
#endif
#if !defined(NO_TLS1_3) && !defined(OPENSSL_NO_TLS1_3)
off |= (ENABLED(proto, TLS_PROTO_TLS1_3) ? 0 : SSL_OP_NO_TLSv1_3);
#endif
break;
}
return(NULL);
SSL_CTX_set_min_proto_version (ctx, TLS1_3_VERSION);
SSL_CTX_set_max_proto_version (ctx, TLS1_3_VERSION);
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, off); /* all SSL bug workarounds */
SSL_CTX_sess_set_cache_size( ctx, 128);
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);
Tcl_AppendResult(interp,
"Could not find DH parameters file", (char *) NULL);
Tcl_AppendResult(interp,
"Could not read DH parameters from file", (char *) NULL);
if (SSL_CTX_use_certificate_file(ctx, F2N( certfile, &ds),
if (SSL_CTX_use_certificate_file(ctx, F2N(certfile, &ds), SSL_FILETYPE_PEM) <= 0) {
SSL_FILETYPE_PEM) <= 0) {
Tcl_AppendResult(interp,
"unable to set certificate file ", certfile, ": ",
Tcl_AppendResult(interp,
Tcl_AppendResult(interp, "unable to set certificate: ",
"unable to set certificate: ",
if (SSL_CTX_use_certificate_file(ctx, certfile,
if (SSL_CTX_use_certificate_file(ctx, certfile, SSL_FILETYPE_PEM) <= 0) {
SSL_FILETYPE_PEM) <= 0) {
Tcl_AppendResult(interp,
"unable to use default certificate file ", certfile, ": ",
if (SSL_CTX_use_PrivateKey_file(ctx, F2N( keyfile, &ds), SSL_FILETYPE_PEM) <= 0) {
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, " ",
Tcl_AppendResult(interp,
Tcl_AppendResult(interp, "unable to set public key: ", REASON(), (char *) NULL);
"unable to set public key: ",
REASON(), (char *) NULL);
Tcl_AppendResult(interp,
"private key does not match the certificate public key",
Tcl_AppendResult(interp, "SSL default verify paths: ",
Tcl_AppendResult(interp, "SSL default verify paths: ", REASON(), (char *) NULL);
REASON(), (char *) NULL);
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 );
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;
}
|
| ︙ | | |
1495
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|
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|
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+
-
-
+
-
-
+
-
-
+
-
-
+
-
-
+
-
-
+
-
-
+
-
+
|
if (peer) {
objPtr = Tls_NewX509Obj(interp, peer);
if (objc == 2) { X509_free(peer); }
} else {
objPtr = Tcl_NewListObj(0, NULL);
}
Tcl_ListObjAppendElement (interp, objPtr,
Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("sbits", -1));
Tcl_NewStringObj ("sbits", -1));
Tcl_ListObjAppendElement (interp, objPtr,
Tcl_NewIntObj (SSL_get_cipher_bits (statePtr->ssl, NULL)));
Tcl_ListObjAppendElement(interp, objPtr,
Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("cipher", -1));
Tcl_NewStringObj("cipher", -1));
Tcl_ListObjAppendElement(interp, objPtr,
Tcl_NewStringObj(SSL_get_cipher(statePtr->ssl), -1));
Tcl_ListObjAppendElement(interp, objPtr,
Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj((char *)proto, (int)len));
Tcl_NewStringObj((char *)proto, (int)len));
Tcl_ListObjAppendElement(interp, objPtr,
Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("version", -1));
Tcl_NewStringObj("version", -1));
Tcl_ListObjAppendElement(interp, objPtr,
Tcl_NewStringObj(SSL_get_version(statePtr->ssl), -1));
Tcl_SetObjResult( interp, objPtr);
Tcl_SetObjResult(interp, objPtr);
return TCL_OK;
clientData = clientData;
|
| ︙ | | |
1545
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|
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|
-
+
-
-
-
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+
+
|
static int
VersionObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
Tcl_Obj *objPtr;
dprintf("Called");
objPtr = Tcl_NewStringObj(OPENSSL_VERSION_TEXT, -1);
clientData = clientData;
objc = objc;
objv = objv;
|
| ︙ | | |
1605
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|
-
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|
#if OPENSSL_VERSION_NUMBER <= 0x10100000L
RSA *rsa = NULL;
#elif OPENSSL_VERSION_NUMBER < 0x30000000L
BIGNUM *bne = NULL;
RSA *rsa = NULL;
#else
EVP_PKEY_CTX *ctx = NULL;
EVP_PKEY_CTX *ctx = NULL;
#endif
if ((objc<5) || (objc>6)) {
Tcl_WrongNumArgs(interp, 2, objv, "keysize keyfile certfile ?info?");
return TCL_ERROR;
}
|
| ︙ | | |
1724
1725
1726
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1728
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|
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1679
|
-
+
|
X509_gmtime_adj(X509_get_notBefore(cert),0);
X509_gmtime_adj(X509_get_notAfter(cert),(long)60*60*24*days);
#else
X509_gmtime_adj(X509_getm_notBefore(cert),0);
X509_gmtime_adj(X509_getm_notAfter(cert),(long)60*60*24*days);
#endif
X509_set_pubkey(cert,pkey);
|
| ︙ | | |
1775
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|
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1750
|
-
+
-
+
-
|
}
}
break;
default:
break;
}
return TCL_OK;
clientData = clientData;
Tls_Free( char *blockPtr )
Tls_Free(char *blockPtr) {
{
|
| ︙ | | |
1876
1877
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2019
2020
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2064
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2071
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2074
2075
2076
2077
2078
|
1816
1817
1818
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1820
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1823
1824
1825
1826
1827
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1830
1831
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2005
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2011
2012
2013
2014
2015
|
-
-
+
-
-
+
+
-
+
-
-
-
-
+
+
+
+
-
+
-
+
-
-
-
+
+
+
-
-
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-
+
+
+
+
-
-
-
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-
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-
+
+
+
+
+
+
+
-
-
-
+
+
+
-
+
-
+
-
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+
+
-
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+
+
-
+
-
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+
+
+
-
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+
-
+
-
+
-
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+
-
-
+
+
-
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+
+
+
+
+
-
+
-
+
-
-
+
+
-
-
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-
+
+
+
+
-
+
-
+
-
+
-
+
-
+
-
-
-
+
+
+
-
-
+
+
-
-
+
+
-
-
-
-
+
+
+
+
-
-
-
+
+
+
-
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+
+
-
-
+
-
+
-
-
-
-
-
+
+
+
+
+
-
+
|
* Results: Ssl configured and loaded
*
* Side effects:
* create the ssl command, initialize ssl context
*
*-------------------------------------------------------------------
*/
const char tlsTclInitScript[] = {
0x00
};
dprintf("Called");
/*
* We only support Tcl 8.4 or newer
*/
if (
Tcl_InitStubs(interp, "8.4", 0)
Tcl_InitStubs(interp, "8.4", 0)
#else
Tcl_PkgRequire(interp, "Tcl", "8.4-", 0)
Tcl_PkgRequire(interp, "Tcl", "8.4-", 0)
#endif
== NULL) {
return TCL_ERROR;
}
== NULL) {
return TCL_ERROR;
}
if (TlsLibInit(0) != TCL_OK) {
Tcl_AppendResult(interp, "could not initialize SSL library", NULL);
return TCL_ERROR;
}
Tcl_CreateObjCommand(interp, "tls::ciphers", CiphersObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
Tcl_CreateObjCommand(interp, "tls::handshake", HandshakeObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
Tcl_CreateObjCommand(interp, "tls::import", ImportObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
Tcl_CreateObjCommand(interp, "tls::unimport", UnimportObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
Tcl_CreateObjCommand(interp, "tls::status", StatusObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
Tcl_CreateObjCommand(interp, "tls::version", VersionObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
Tcl_CreateObjCommand(interp, "tls::misc", MiscObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
if (interp) {
Tcl_Eval(interp, tlsTclInitScript);
}
return(Tcl_PkgProvide(interp, "tls", PACKAGE_VERSION));
* Standard procedure required by 'load'.
* Standard procedure required by 'load'.
* Initializes this extension for a safe interpreter.
* ------------------------------------------------*
*
* Side effects:
* As of 'Tls_Init'
*
* Result:
* A standard Tcl error code.
*
*------------------------------------------------------*
*/
dprintf("Called");
return(Tls_Init(interp));
static int initialized = 0;
int status = TCL_OK;
size_t num_locks;
if (uninitialize) {
if (!initialized) {
dprintf("Asked to uninitialize, but we are not initialized");
return(TCL_OK);
}
dprintf("Asked to uninitialize");
Tcl_MutexLock(&init_mx);
CRYPTO_set_locking_callback(NULL);
CRYPTO_set_id_callback(NULL);
CRYPTO_set_locking_callback(NULL);
CRYPTO_THREADID_set_callback(NULL)
if (locks) {
free(locks);
locks = NULL;
locksCount = 0;
}
initialized = 0;
Tcl_MutexUnlock(&init_mx);
return(TCL_OK);
}
if (initialized) {
dprintf("Called, but using cached value");
return(status);
}
dprintf("Called");
Tcl_MutexLock(&init_mx);
initialized = 1;
num_locks = CRYPTO_num_locks();
num_locks = 1;
locksCount = (int) 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);
CRYPTO_set_locking_callback(CryptoThreadLockCallback);
CRYPTO_THREADID_set_callback(CryptoThreadIdCallback)
if (SSL_library_init() != 1) {
status = TCL_ERROR;
goto done;
}
/* 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);
SSL_load_error_strings();
ERR_load_crypto_strings();
/* Only initialize libcrypto */
OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
BIO_new_tcl(NULL, 0);
/*
* XXX:TODO: Remove this code and replace it with a check
* for enough entropy and do not try to create our own
* terrible entropy
*/
* The crux of the problem is that Solaris 7 does not have a
* The crux of the problem is that Solaris 7 does not have a
* /dev/random or /dev/urandom device so it cannot gather enough
* entropy from the RAND_seed() when TLS initializes and refuses
* to go further. Earlier versions of OpenSSL carried on regardless.
*/
srand((unsigned int) time((time_t *) NULL));
do {
for (i = 0; i < 16; i++) {
|
| ︙ | | |
| ︙ | | |
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
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81
82
83
84
85
86
87
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89
90
91
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94
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307
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309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
|
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
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341
|
-
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-
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-
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+
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-
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+
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-
+
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
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|
#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_;
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 unepxected 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);
}
}
BIO_set_retry_read(bio);
}
}
return(ret);
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 unepxected 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);
}
}
BIO_set_retry_write(bio);
}
}
dprintf("BioRead(%p, <buf>, %d) [%p] returning %i", (void *) bio, bufLen, (void *) chan, ret);
return(ret);
dprintf("BioPuts(%p, <string:%p>) called", bio, str);
return BioWrite(bio, str, (int) strlen(str));
Tcl_Channel chan;
long ret = 1;
chan = Tls_GetParent((State *) BIO_get_data(bio), 0);
switch (cmd) {
case BIO_CTRL_RESET:
dprintf("Got BIO_CTRL_RESET");
num = 0;
case BIO_C_FILE_SEEK:
dprintf("Got BIO_C_FILE_SEEK");
case BIO_C_FILE_TELL:
dprintf("Got BIO_C_FILE_TELL");
ret = 0;
break;
case BIO_CTRL_INFO:
dprintf("Got BIO_CTRL_INFO");
ret = 1;
break;
case BIO_C_SET_FD:
dprintf("Unsupported call: BIO_C_SET_FD");
ret = -1;
break;
case BIO_C_GET_FD:
dprintf("Unsupported call: BIO_C_GET_FD");
ret = -1;
break;
case BIO_CTRL_GET_CLOSE:
dprintf("Got BIO_CTRL_CLOSE");
ret = BIO_get_shutdown(bio);
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");
break;
case BIO_CTRL_PENDING:
dprintf("Got BIO_CTRL_PENDING");
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");
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;
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;
case BIO_CTRL_GET_KTLS_RECV:
dprintf("Got BIO_CTRL_GET_KTLS_RECV");
ret = 0;
break;
default:
dprintf("Got unknown control command (%i)", cmd);
ret = 0;
break;
}
return(ret);
dprintf("BioNew(%p) called", bio);
BIO_set_init(bio, 0);
BIO_set_data(bio, NULL);
BIO_clear_flags(bio, -1);
return(1);
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;
static BIO_METHOD *BioMethods = NULL;
Tcl_Channel parentChannel;
const Tcl_ChannelType *parentChannelType;
void *parentChannelFdIn_p, *parentChannelFdOut_p;
int parentChannelFdIn, parentChannelFdOut, parentChannelFd;
int validParentChannelFd;
int tclGetChannelHandleRet;
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);
}
/*
* 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");
bio = BIO_new(BioMethods);
BIO_set_data(bio, statePtr);
BIO_set_shutdown(bio, flags);
BIO_set_init(bio, 1);
return(bio);
|
| ︙ | | |
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|
* This was built from scratch based upon observation of OpenSSL 0.9.2B
*
* Addition credit is due for Andreas Kupries ([email protected]), for
* providing the Tcl_ReplaceChannel mechanism and working closely with me
* to enhance it to support full fileevent semantics.
*
* Also work done by the follow people provided the impetus to do this "right":
* tclSSL (Colin McCormack, Shared Technology)
* SSLtcl (Peter Antman)
* tclSSL (Colin McCormack, Shared Technology)
* SSLtcl (Peter Antman)
*
*/
#include "tlsInt.h"
/*
* Forward declarations
*/
static void TlsChannelHandlerTimer(ClientData clientData);
/*
* TLS Channel Type
*/
static Tcl_ChannelType *tlsChannelType = NULL;
/*
*-------------------------------------------------------------------
*
* TlsBlockModeProc --
*
* This procedure is invoked by the generic IO level
* This procedure is invoked by the generic IO level
* to set blocking and nonblocking modes
* Results:
* 0 if successful, errno when failed.
* 0 if successful, errno when failed.
*
* Side effects:
* Sets the device into blocking or nonblocking mode.
* Sets the device into blocking or nonblocking mode.
*
*-------------------------------------------------------------------
*/
static int TlsBlockModeProc(ClientData instanceData, int mode) {
State *statePtr = (State *) instanceData;
if (mode == TCL_MODE_NONBLOCKING) {
statePtr->flags |= TLS_TCL_ASYNC;
} else {
statePtr->flags &= ~(TLS_TCL_ASYNC);
}
return(0);
* This procedure is invoked by the generic IO level to perform
* channel-type-specific cleanup when a SSL socket based channel
* is closed.
* This procedure is invoked by the generic IO level to perform
* channel-type-specific cleanup when a SSL socket based channel
* is closed.
*
* Note: we leave the underlying socket alone, is this right?
* Note: we leave the underlying socket alone, is this right?
*
* Results:
* 0 if successful, the value of Tcl_GetErrno() if failed.
* 0 if successful, the value of Tcl_GetErrno() if failed.
*
* Side effects:
* Closes the socket of the channel.
* Closes the socket of the channel.
*
*-------------------------------------------------------------------
*/
static int TlsCloseProc(ClientData instanceData, Tcl_Interp *interp) {
State *statePtr = (State *) instanceData;
dprintf("TlsCloseProc(%p)", (void *) statePtr);
Tls_Clean(statePtr);
Tcl_EventuallyFree((ClientData)statePtr, Tls_Free);
return(0);
* Tls_WaitForConnect --
* Tls_WaitForConnect --
*
* Sideeffects:
* Issues SSL_accept or SSL_connect
* Sideeffects:
* Issues SSL_accept or SSL_connect
*
* Result:
* None.
* Result:
* None.
*
*------------------------------------------------------*
*/
int Tls_WaitForConnect(State *statePtr, int *errorCodePtr, int handshakeFailureIsPermanent) {
unsigned long backingError;
int err, rc;
int bioShouldRetry;
dprintf("WaitForConnect(%p)", (void *) 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);
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;
} else if (rc == SSL_ERROR_SYSCALL && Tcl_GetErrno() == EAGAIN) {
bioShouldRetry = 1;
}
} else {
if (!SSL_is_init_finished(statePtr->ssl)) {
bioShouldRetry = 1;
}
}
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");
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;
}
}
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;
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 (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);
}
}
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);
* This procedure is invoked by the generic IO level
* This procedure is invoked by the generic IO level
* to read input from a SSL socket based channel.
*
* Results:
* The number of bytes read is returned or -1 on error. An output
* argument contains the POSIX error code on error, or zero if no
* error occurred.
* The number of bytes read is returned or -1 on error. An output
* argument contains the POSIX error code on error, or zero if no
* error occurred.
*
* Side effects:
* Reads input from the input device of the channel.
* Reads input from the input device of the channel.
*
*-------------------------------------------------------------------
*/
unsigned long backingError;
State *statePtr = (State *) instanceData;
int bytesRead;
int tlsConnect;
int err;
*errorCodePtr = 0;
dprintf("BIO_read(%d)", bufSize);
if (statePtr->flags & TLS_TCL_CALLBACK) {
/* don't process any bytes while verify callback is running */
dprintf("Callback is running, reading 0 bytes");
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;
}
return(bytesRead);
}
/*
* We need to clear the SSL error stack now because we sometimes reach
* this function with leftover errors in the stack. If BIO_read
* returns -1 and intends EAGAIN, there is a leftover error, it will be
* misconstrued as an error, not EAGAIN.
*
* Alternatively, we may want to handle the <0 return codes from
* BIO_read specially (as advised in the RSA docs). TLS's lower level BIO
* functions play with the retry flags though, and this seems to work
* 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 (bytesRead <= 0) {
if (BIO_should_retry(statePtr->bio)) {
dprintf("I/O failed, will retry based on EAGAIN");
*errorCodePtr = EAGAIN;
}
}
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;
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;
}
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);
* This procedure is invoked by the generic IO level
* This procedure is invoked by the generic IO level
* to write output to a SSL socket based channel.
*
* Results:
* The number of bytes written is returned. An output argument is
* set to a POSIX error code if an error occurred, or zero.
* The number of bytes written is returned. An output argument is
* set to a POSIX error code if an error occurred, or zero.
*
* Side effects:
* Writes output on the output device of the channel.
* Writes output on the output device of the channel.
*
*-------------------------------------------------------------------
*/
unsigned long backingError;
State *statePtr = (State *) instanceData;
int written, err;
int tlsConnect;
*errorCodePtr = 0;
dprintf("BIO_write(%p, %d)", (void *) statePtr, toWrite);
dprintBuffer(buf, toWrite);
if (statePtr->flags & TLS_TCL_CALLBACK) {
dprintf("Don't process output while callbacks are running")
written = -1;
*errorCodePtr = EAGAIN;
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);
}
*errorCodePtr = EIO;
written = 0;
return(-1);
}
written = 0;
*errorCodePtr = 0;
return(0);
}
/*
* We need to clear the SSL error stack now because we sometimes reach
* this function with leftover errors in the stack. If BIO_write
* returns -1 and intends EAGAIN, there is a leftover error, it will be
* misconstrued as an error, not EAGAIN.
*
* Alternatively, we may want to handle the <0 return codes from
* BIO_write specially (as advised in the RSA docs). TLS's lower level
* BIO functions play with the retry flags though, and this seems to
* 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;
}
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);
* Computes an option value for a SSL socket based channel, or a
* list of all options and their values.
* Computes an option value for a SSL socket based channel, or a
* list of all options and their values.
*
* Results:
* A standard Tcl result. The value of the specified option or a
* list of all options and their values is returned in the
* supplied DString.
* A standard Tcl result. The value of the specified option or a
* list of all options and their values is returned in the
* supplied DString.
*
* Side effects:
* None.
* None.
*
*-------------------------------------------------------------------
*/
static int
TlsSetOptionProc(ClientData 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. */
TlsSetOptionProc(ClientData 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;
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;
return TCL_OK;
}
/*
* Request for a specific option has to fail, we don't have any.
*/
return TCL_ERROR;
}
/*
*-------------------------------------------------------------------
*
* TlsGetOptionProc --
*
* Computes an option value for a SSL socket based channel, or a
* list of all options and their values.
* Computes an option value for a SSL socket based channel, or a
* list of all options and their values.
*
* Results:
* A standard Tcl result. The value of the specified option or a
* list of all options and their values is returned in the
* supplied DString.
* A standard Tcl result. The value of the specified option or a
* list of all options and their values is returned in the
* supplied DString.
*
* Side effects:
* None.
* None.
*
*-------------------------------------------------------------------
*/
static int
TlsGetOptionProc(ClientData 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
TlsGetOptionProc(ClientData 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. */
* initialized by caller. */
Tcl_Channel downChan = Tls_GetParent(statePtr, TLS_TCL_FASTPATH);
Tcl_DriverGetOptionProc *getOptionProc;
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);
/*
* Request is query for all options, this is ok.
*/
return TCL_OK;
* Initialize the notifier to watch Tcl_Files from this channel.
* Initialize the notifier to watch Tcl_Files from this channel.
*
* Results:
* None.
* None.
*
* Side effects:
* Sets up the notifier so that a future event on the channel
* will be seen by Tcl.
* Sets up the notifier so that a future event on the channel
* will be seen by Tcl.
*
*-------------------------------------------------------------------
*/
TlsWatchProc(ClientData instanceData, /* The socket state. */
int mask) /* Events of interest; an OR-ed combination of */
/* TCL_READABLE, TCL_WRITABLE and TCL_EXCEPTION. */
TlsWatchProc(ClientData 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.
/* 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;
dprintf("Asked to watch a socket with a failed handshake -- nothing can happen here");
(Tcl_GetChannelType(downChan))->watchProc(Tcl_GetChannelInstanceData(downChan), 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);
statePtr->timer = (Tcl_TimerToken) NULL;
}
* Called from Tcl_GetChannelFile to retrieve o/s file handler
* from the SSL socket based channel.
* Called from Tcl_GetChannelFile to retrieve o/s file handler
* from the SSL socket based channel.
*
* Results:
* The appropriate Tcl_File or NULL if not present.
* The appropriate Tcl_File or NULL if not present.
*
* Side effects:
* None.
* None.
*
*-------------------------------------------------------------------
*/
static int TlsGetHandleProc(ClientData instanceData, int direction, ClientData *handlePtr) {
State *statePtr = (State *) instanceData;
return(Tcl_GetChannelHandle(Tls_GetParent(statePtr, TLS_TCL_FASTPATH), direction, handlePtr));
* Handler called by Tcl to inform us of activity
* on the underlying channel.
* Handler called by Tcl to inform us of activity
* on the underlying channel.
*
* Results:
* None.
* None.
*
* Side effects:
* May process the incoming event by itself.
* May process the incoming event by itself.
*
*-------------------------------------------------------------------
*/
State *statePtr = (State *) instanceData;
int errorCode;
/*
* An event occurred in the underlying channel. This
* transformation doesn't process such events thus returns the
* incoming mask unchanged.
*/
if (statePtr->timer != (Tcl_TimerToken) NULL) {
/*
* Delete an existing timer. It was not fired, yet we are
* here, so the channel below generated such an event and we
* don't have to. The renewal of the interest after the
* execution of channel handlers will eventually cause us to
* recreate the timer (in WatchProc).
*/
Tcl_DeleteTimerHandler(statePtr->timer);
statePtr->timer = (Tcl_TimerToken) NULL;
}
if (statePtr->flags & TLS_TCL_CALLBACK) {
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;
}
return 0;
}
dprintf("Tls_WaitForConnect returned an error");
}
dprintf("Returning %i", mask);
return(mask);
|
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|
* Tcl_NotifyChannel.
*
* Result:
* None.
*
*------------------------------------------------------*
*/
Tcl_Preserve( (ClientData)statePtr);
Tcl_Preserve((ClientData)statePtr);
if (mask & TCL_READABLE) {
BIO_set_flags(statePtr->p_bio, BIO_FLAGS_READ);
} else {
BIO_clear_flags(statePtr->p_bio, BIO_FLAGS_READ);
}
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|
* 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.
*/
statePtr->timer = Tcl_CreateTimerHandler(TLS_TCL_DELAY,
statePtr->timer = Tcl_CreateTimerHandler(TLS_TCL_DELAY, TlsChannelHandlerTimer, (ClientData) statePtr);
TlsChannelHandlerTimer, (ClientData) statePtr);
Tcl_Release( (ClientData)statePtr);
Tcl_Release((ClientData)statePtr);
}
#endif
/*
*------------------------------------------------------*
*
* TlsChannelHandlerTimer --
* TlsChannelHandlerTimer --
*
* ------------------------------------------------*
* Called by the notifier (-> timer) to flush out
* information waiting in channel buffers.
* ------------------------------------------------*
* ------------------------------------------------*
* Called by the notifier (-> timer) to flush out
* information waiting in channel buffers.
* ------------------------------------------------*
*
* Sideeffects:
* As of 'TlsChannelHandler'.
* Sideeffects:
* As of 'TlsChannelHandler'.
*
* Result:
* None.
* Result:
* None.
*
*------------------------------------------------------*
*/
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;
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));
* Return the correct TLS channel driver info
* Return the correct TLS channel driver info
*
* Results:
* The correct channel driver for the current version of Tcl.
* The correct channel driver for the current version of Tcl.
*
* Side effects:
* None.
* None.
*
*-------------------------------------------------------------------
*/
Tcl_ChannelType *Tls_ChannelType(void) {
unsigned int size;
/*
* Initialize the channel type if necessary
*/
if (tlsChannelType == NULL) {
/*
* Allocate new channeltype structure
*/
size = sizeof(Tcl_ChannelType); /* Base size */
tlsChannelType = (Tcl_ChannelType *) ckalloc(size);
memset((void *) tlsChannelType, 0, size);
tlsChannelType->typeName = "tls";
tlsChannelType->version = TCL_CHANNEL_VERSION_5;
tlsChannelType->closeProc = TlsCloseProc;
tlsChannelType->inputProc = TlsInputProc;
tlsChannelType->outputProc = TlsOutputProc;
tlsChannelType->seekProc = NULL;
tlsChannelType->setOptionProc = TlsSetOptionProc;
tlsChannelType->getOptionProc = TlsGetOptionProc;
tlsChannelType->watchProc = TlsWatchProc;
tlsChannelType->getHandleProc = TlsGetHandleProc;
tlsChannelType->close2Proc = TlsCloseProc2;
tlsChannelType->blockModeProc = TlsBlockModeProc;
tlsChannelType->flushProc = NULL;
tlsChannelType->handlerProc = TlsNotifyProc;
tlsChannelType->wideSeekProc = NULL;
tlsChannelType->threadActionProc= NULL;
tlsChannelType->truncateProc = NULL;
tlsChannelType->version = TCL_CHANNEL_VERSION_2;
tlsChannelType->closeProc = TlsCloseProc;
tlsChannelType->inputProc = TlsInputProc;
tlsChannelType->outputProc = TlsOutputProc;
tlsChannelType->seekProc = NULL;
tlsChannelType->setOptionProc = TlsSetOptionProc;
tlsChannelType->getOptionProc = TlsGetOptionProc;
tlsChannelType->watchProc = TlsWatchProc;
tlsChannelType->getHandleProc = TlsGetHandleProc;
tlsChannelType->close2Proc = NULL;
tlsChannelType->blockModeProc = TlsBlockModeProc;
tlsChannelType->flushProc = NULL;
tlsChannelType->handlerProc = TlsNotifyProc;
}
return(tlsChannelType);
|