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|
*/
#include "tlsInt.h"
#include "tclOpts.h"
#include <stdio.h>
#include <stdlib.h>
#include "tlsUuid.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)))
#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;
int key_asn1_len, int cert_asn1_len, char *CAdir, char *CAfile,
char *ciphers, char *DHparams);
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))
/*
* 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
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);
}
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
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) );
statePtr->interp, cmdPtr,
Tcl_NewStringObj( minor, -1) );
if (where & (SSL_CB_LOOP|SSL_CB_EXIT)) {
Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
if (where & SSL_CB_ALERT) {
Tcl_ListObjAppendElement(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);
statePtr->interp, cmdPtr,
Tcl_NewStringObj( cp, -1) );
Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
Tcl_NewStringObj( SSL_state_string_long(ssl), -1) );
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_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);
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.
* This is called whenever a certificate is inspected
* or decided invalid.
* 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
* 1 - the certificate is deemed valid
* 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)
VerifyCallback(int ok, X509_STORE_CTX *ctx) {
{
Tcl_Obj *cmdPtr, *result;
char *errStr, *string;
Tcl_Size length;
dprintf("Verify: %d", ok);
dprintf("VerifyCallback: %d", ok);
if (!ok) {
if (statePtr->vcmd == (Tcl_Obj*)NULL) {
errStr = (char *)X509_verify_cert_error_string(err);
} else {
errStr = (char *)0;
}
if (statePtr->callback == NULL) {
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) );
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);
/* Prevent I/O while callback is in progress */
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. */
return(ok); /* By default, leave verification unchanged. */
}
/*
*-------------------------------------------------------------------
*
* Tls_Error --
*
* Calls callback with $fd and $msg - so the callback can decide
* Calls callback with list of errors.
* what to do with errors.
Tls_Error(State *statePtr, char *msg)
Tls_Error(State *statePtr, char *msg) {
{
Tcl_Obj *cmdPtr;
if (msg && *msg) {
Tcl_SetErrorCode(statePtr->interp, "SSL", msg, (char *)NULL);
} else {
msg = Tcl_GetString(Tcl_GetObjResult(statePtr->interp));
}
statePtr->err = msg;
{
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);
}
Tcl_ListObjAppendElement(statePtr->interp, cmdPtr,
Tcl_NewStringObj("error", -1));
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_GetString(Tcl_GetObjResult(interp))) != NULL) {
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);
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);
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);
}
}
/*
*-------------------------------------------------------------------
*
* PasswordCallback --
* Password Callback --
*
* 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.
* 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.
*
*-------------------------------------------------------------------
*/
#ifdef PRE_OPENSSL_0_9_4
/*
* No way to handle user-data therefore no way without a global
* variable to access the Tcl interpreter.
*/
PasswordCallback(
PasswordCallback(char *buf, int size, int rwflag, void *udata) {
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)
{
int result;
int code;
dprintf("Called");
/* If no callback, use default callback */
if (statePtr->password == NULL) {
if (Tcl_EvalEx(interp, "tls::password", -1, TCL_EVAL_GLOBAL)
if (Tcl_EvalEx(interp, "tls::password", -1, TCL_EVAL_GLOBAL) == TCL_OK) {
== TCL_OK) {
const char *ret = Tcl_GetStringResult(interp);
Tcl_Preserve((ClientData) statePtr->interp);
Tcl_Preserve((ClientData) statePtr);
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);
result = Tcl_EvalObjEx(interp, cmdPtr, TCL_EVAL_GLOBAL);
if (result != TCL_OK) {
if ((code = EvalCallback(interp, statePtr, cmdPtr)) > 1) {
res = SSL_CLIENT_HELLO_RETRY;
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);
return -1;
res = SSL_CLIENT_HELLO_ERROR;
*alert = SSL_R_TLSV1_ALERT_INTERNAL_ERROR;
}
Tcl_DecrRefCount(cmdPtr);
return res;
}
#endif
|
| ︙ | | |
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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;
int index, verbose = 0, use_supported = 0;
const SSL_METHOD *method;
dprintf("Called");
if ((objc < 2) || (objc > 3)) {
Tcl_WrongNumArgs(interp, 1, objv, "protocol ?verbose?");
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, "protocol not supported", (char *)NULL);
Tcl_AppendResult(interp, protocols[index], ": protocol not supported", (char *)NULL);
return TCL_ERROR;
#else
ctx = SSL_CTX_new(SSLv3_method()); break;
method = 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);
Tcl_AppendResult(interp, protocols[index], ": protocol not supported", (char *)NULL);
return TCL_ERROR;
#else
ctx = SSL_CTX_new(TLSv1_method()); break;
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
ctx = SSL_CTX_new(TLSv1_1_method()); break;
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, "protocol not supported", (char *)NULL);
Tcl_AppendResult(interp, protocols[index], ": protocol not supported", (char *)NULL);
return TCL_ERROR;
#else
ctx = SSL_CTX_new(TLSv1_2_method()); break;
method = TLSv1_2_method(); break;
#endif
case TLS_TLS1_3:
#if defined(NO_TLS1_3) || defined(OPENSSL_NO_TLS1_3) || defined(OPENSSL_NO_TLS1_3_METHOD)
Tcl_AppendResult(interp, "protocol not supported", (char *)NULL);
Tcl_AppendResult(interp, protocols[index], ": 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);
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;
Tcl_AppendResult(interp, REASON(), (char *)NULL);
Tcl_AppendResult(interp, GET_ERR_REASON(), (char *)NULL);
return TCL_ERROR;
}
ssl = SSL_new(ctx);
if (ssl == NULL) {
Tcl_AppendResult(interp, REASON(), (char *)NULL);
Tcl_AppendResult(interp, GET_ERR_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';
break;
Tcl_ListObjAppendElement( interp, objPtr,
Tcl_NewStringObj( buf, -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_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 *CAdir = NULL;
char *CApath = NULL;
char *DHparams = NULL;
char *model = NULL;
#ifndef OPENSSL_NO_TLSEXT
#endif
int proto = 0;
int verify = 0, require = 0, request = 1;
int proto = 0, level = -1;
int verify = 0, require = 0, request = 1, post_handshake = 0;
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)
#if defined(NO_TLS1_1)
#if defined(NO_TLS1_1) || defined(OPENSSL_NO_TLS1_1)
tls1_1 = 0;
#endif
#if defined(NO_TLS1_2)
#if defined(NO_TLS1_2) || defined(OPENSSL_NO_TLS1_2)
tls1_2 = 0;
#endif
#if defined(NO_TLS1_3)
#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", CAdir);
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("-require", require);
OPTBOOL("-post_handshake", post_handshake);
OPTBOOL("-request", request);
OPTBOOL("-require", require);
OPTINT("-security_level", level);
OPTBOOL("-server", server);
#ifndef OPENSSL_NO_TLSEXT
OPTSTR( "-servername", servername);
#endif
OPTBOOL("-tls1.3", tls1_3)
OPTBYTE("-cert", cert, cert_len);
OPTBYTE("-key", key, key_len);
OPTBOOL("-tls1.3", tls1_3);
OPTOBJ("-validatecommand", vcmd);
OPTOBJ("-vcmd", vcmd);
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");
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 (CAdir && !*CAdir) CAdir = 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);
}
}
/* 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,
if ((ctx = CTX_Init(statePtr, server, proto, keyfile, certfile, key, cert, (int) key_len,
cert, key_len, cert_len, CAdir, CAfile, ciphers,
DHparams)) == NULL) {
|
| ︙ | | |
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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: ", REASON(), (char *)NULL);
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;
}
#ifndef OPENSSL_NO_TLSEXT
Tcl_AppendResult(interp, "setting TLS host name extension failed", (char *)NULL);
Tls_Free((void *)statePtr);
return TCL_ERROR;
}
}
#endif
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_CTX_set_info_callback(statePtr->ctx, InfoCallback);
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);
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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|
-
+
-
+
+
+
-
-
+
-
+
-
+
-
+
-
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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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+
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-
-
-
-
|
*
*-------------------------------------------------------------------
*/
static SSL_CTX *
CTX_Init(
State *statePtr,
TCL_UNUSED(int) /* isServer */,
int isServer,
int proto,
char *keyfile,
char *certfile,
unsigned char *key,
unsigned char *cert,
int key_len,
int cert_len,
char *CAdir,
char *CApath,
char *CAfile,
char *ciphers,
char *ciphersuites,
int level,
char *DHparams)
{
Tcl_Interp *interp = statePtr->interp;
SSL_CTX *ctx = NULL;
Tcl_DString ds;
Tcl_DString ds1;
int off = 0;
Tcl_AppendResult(interp, "protocol not supported", (char *)NULL);
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, "protocol not supported", (char *)NULL);
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, "protocol not supported", (char *)NULL);
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, "protocol not supported", (char *)NULL);
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, "protocol not supported", (char *)NULL);
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, "protocol not supported", (char *)NULL);
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 = SSLv3_method ();
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 = TLSv1_method ();
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 = TLSv1_1_method ();
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 = TLSv1_2_method ();
method = isServer ? TLSv1_2_server_method() : TLSv1_2_client_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 ();
method = isServer ? TLS_server_method() : TLS_client_method();
break;
#endif
default:
#ifdef HAVE_TLS_METHOD
method = TLS_method ();
#else
method = SSLv23_method ();
#endif
ctx = SSL_CTX_new (method);
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, interp); /* remember the interpreter */
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); /* all SSL bug workarounds */
SSL_CTX_set_options(ctx, off); /* disable protocol versions */
SSL_CTX_sess_set_cache_size(ctx, 128);
if (ciphers != NULL)
SSL_CTX_set_cipher_list(ctx, ciphers);
/* 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);
#ifndef BSAFE
#endif
Tcl_DStringInit(&ds);
|
| ︙ | | |
1216
1217
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1977
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1979
|
-
+
-
-
-
+
+
+
-
-
+
-
-
+
|
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: ", REASON(), (char *)NULL);
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;
Tcl_DStringInit(&ds);
REASON(), (char *)NULL);
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_DStringFree(&ds);
REASON(), (char *)NULL);
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_DStringFree(&ds);
REASON(), (char *)NULL);
GET_ERR_REASON(), (char *)NULL);
SSL_CTX_free(ctx);
return NULL;
#endif
}
}
/* set our private key */
|
| ︙ | | |
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
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1289
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|
1989
1990
1991
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1994
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1996
1997
1998
1999
2000
2001
2002
2003
2004
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2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
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2025
2026
2027
2028
2029
2030
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2032
2033
2034
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2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
|
-
+
-
-
+
+
+
+
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
-
-
+
+
+
+
-
-
-
+
+
+
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
|
}
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);
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) {
Tcl_DStringFree(&ds);
Tcl_AppendResult(interp, "unable to set public key: ", REASON(), (char *)NULL);
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. */
/* 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);
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);
}
/* 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);
|
| ︙ | | |
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
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1381
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1389
1390
1391
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1393
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1395
1396
1397
1398
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1400
1401
1402
1403
|
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
|
+
+
+
-
-
-
+
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
|
{
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");
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;
|
| ︙ | | |
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
|
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
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2196
2197
2198
2199
2200
2201
2202
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2204
2205
2206
2207
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2209
2210
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2218
2219
2220
2221
2222
2223
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2225
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2234
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2240
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2248
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2250
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2253
2254
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2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
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2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
|
-
+
-
-
-
+
+
+
-
-
-
-
-
-
+
+
+
+
+
+
+
+
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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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+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
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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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+
+
+
+
+
+
+
-
+
+
+
+
+
|
X509_free(peer);
peer = NULL;
}
} else {
objPtr = Tcl_NewListObj(0, NULL);
}
Tcl_ListObjAppendElement (interp, objPtr,
/* Peer name */
Tcl_NewStringObj ("sbits", -1));
Tcl_ListObjAppendElement (interp, objPtr,
Tcl_NewIntObj (SSL_get_cipher_bits (statePtr->ssl, NULL)));
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,
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));
Tcl_NewStringObj(SSL_get_version(statePtr->ssl), -1));
|
| ︙ | | |
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
|
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
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2541
2542
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2544
2545
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2547
2548
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2552
2553
2554
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2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
|
-
-
-
+
+
+
+
+
+
+
+
-
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
|
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;
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_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;
|
| ︙ | | |
1563
1564
1565
1566
1567
1568
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
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1596
1597
1598
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1600
1601
1602
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1604
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1607
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1613
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1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
|
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
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2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
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
|
+
+
+
+
-
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
+
+
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
+
+
-
-
-
-
+
+
+
+
+
+
-
+
-
-
|
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();
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);
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_get_notBefore(cert),0);
X509_gmtime_adj(X509_get_notAfter(cert),(long)60*60*24*days);
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_md5())) {
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);
out=BIO_new(BIO_s_file());
BIO_write_filename(out,pemout);
} else {
Tcl_SetResult(interp,"Error generating private key",NULL);
return TCL_ERROR;
|
| ︙ | | |
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
|
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
|
+
+
+
+
|
* 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) {
|
| ︙ | | |
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
|
2775
2776
2777
2778
2779
2780
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
|
+
+
+
+
-
+
|
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, initialise ssl context
* create the ssl command, initialize ssl context
*
*-------------------------------------------------------------------
*/
#ifndef STRINGIFY
# define STRINGIFY(x) STRINGIFY1(x)
# define STRINGIFY1(x) #x
|
| ︙ | | |
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
1784
1785
1786
1787
1788
1789
|
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
|
+
+
+
|
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) {
if (Tcl_Eval(interp, tlsTclInitScript) != TCL_OK) {
return TCL_ERROR;
}
}
if (Tcl_GetCommandInfo(interp, "::tcl::build-info", &info)) {
Tcl_CreateObjCommand(interp, "::tls::build-info",
info.objProc, (void *)(
PACKAGE_VERSION "+" STRINGIFY(TLS_VERSION_UUID)
".bohagan"
#if defined(__clang__) && defined(__clang_major__)
".clang-" STRINGIFY(__clang_major__)
#if __clang_minor__ < 10
"0"
#endif
STRINGIFY(__clang_minor__)
#endif
|
| ︙ | | |
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
|
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
|
-
-
-
|
}
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);
|
| ︙ | | |
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
|
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
|
-
-
+
+
-
-
-
-
-
-
+
-
-
+
-
-
+
-
|
#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;
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);
if (SSL_library_init() != 1) {
status = TCL_ERROR;
goto done;
}
SSL_load_error_strings();
ERR_load_crypto_strings();
done:
|
1
2
3
4
5
6
7
8
9
10
11
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
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
|
1
2
3
4
5
6
7
8
9
10
11
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
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
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
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
|
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
-
-
+
+
+
+
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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";
* 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;
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;
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";
* Sideeffects:
* Side effects:
* None
*
* Result:
* A Tcl List Object representing the provided
* X509 certificate.
*
*------------------------------------------------------*
*/
#define CERT_STR_SIZE 16384
Tls_NewX509Obj( interp, cert)
Tcl_Interp *interp;
X509 *cert;
Tls_NewX509Obj(
Tcl_Interp *interp,
X509 *cert)
{
Tcl_Obj *certPtr = Tcl_NewListObj( 0, NULL);
BIO *bio;
int n;
unsigned long flags;
Tcl_Obj *certPtr = Tcl_NewListObj(0, NULL);
BIO *bio = BIO_new(BIO_s_mem());
int mdnid, pknid, bits, len;
unsigned int ulen;
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;
/* Subject identifies the entity associated with the public key stored in
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) );
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 */
Tcl_ListObjAppendElement( interp, certPtr,
Tcl_NewStringObj( notBefore, -1) );
Tcl_ListObjAppendElement( interp, certPtr,
Tcl_NewStringObj( "notAfter", -1) );
Tcl_ListObjAppendElement( interp, certPtr,
LAPPEND_OBJ(interp, certPtr, "caIssuers", Tls_x509CaIssuers(interp, cert));
/* Subject Information Access - RFC 5280 section 4.2.2.2, NID_sinfo_access */
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) );
|