TclTLS
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Comment:Refactored tlsInfo.c file to clear errors, use Obj in var names, and pass name as object instead of string. Split cipher command from its info function.
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SHA3-256: d7ab5a4ae15473e4ea636e988e0976797d920e4861fde3ea604b9075cc3733b8
User & Date: bohagan on 2023-12-10 05:55:14
Other Links: branch diff | manifest | tags
Context
2023-12-11
05:24
Added KDF module to derive keys and ivs from passwords and salts. Added -hash option as alias for -digest. check-in: d4c2159faf user: bohagan tags: crypto
2023-12-10
05:55
Refactored tlsInfo.c file to clear errors, use Obj in var names, and pass name as object instead of string. Split cipher command from its info function. check-in: d7ab5a4ae1 user: bohagan tags: crypto
2023-12-08
03:03
Digest optimizations to delay conversion to OpenSSL types to initialization procedure. Add MAC info and incomplete Pkey info functions. check-in: d93493f320 user: bohagan tags: crypto
Changes
Hide Diffs Side-by-Side Diffs Ignore Whitespace Patch

Modified generic/tlsDigest.c from [65509e5caa] to [8122b24581]. 

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/*
 * Message Digest (MD) and Message Authentication Code (MAC) Module
 *
 * Provides commands to calculate a message digest (MD) or message
 * authentication code (MAC) using a specified hash function and/or cipher.
 * Provides commands to calculate a Message Digest (MD) or a Message
 * Authentication Code (MAC).
 *
 * Copyright (C) 2023 Brian O'Hagan
 *
 */

#include "tlsInt.h"
#include "tclOpts.h"
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 *	Sets result to message digest or an error message.
 *
 *-------------------------------------------------------------------
 */
int DigestFinalize(Tcl_Interp *interp, DigestState *statePtr, Tcl_Obj **resultObj) {
    unsigned char md_buf[EVP_MAX_MD_SIZE];
    unsigned int ulen;
    int res = 0, md_len = 0;
    int res = 0, md_len = 0, type = statePtr->format & 0xFF0;

    dprintf("Called");

    /* Finalize cryptography function and get result */
    switch(statePtr->format & 0xFF0) {
    switch(type) {
    case TYPE_MD:
	if (!(statePtr->format & IS_XOF)) {
	    res = EVP_DigestFinal_ex(statePtr->ctx, md_buf, &ulen);
	    md_len = (int) ulen;
	} else {
	    res = EVP_DigestFinalXOF(statePtr->ctx, md_buf, (size_t) EVP_MAX_MD_SIZE);
	    md_len = EVP_MAX_MD_SIZE;
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 *	TCL_OK or TCL_ERROR
 *
 * Side effects:
 *	Sets result to message digest or error message
 *
 *-------------------------------------------------------------------
 */
 #define validate_argc(objc, objv) { \
 #define VALIDATE_ARGC(objc, objv) { \
    if (objc != 2) { \
	Tcl_WrongNumArgs(interp, 1, objv, "data"); \
	return TCL_ERROR; \
    } \
}
 
int MD4ObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
    validate_argc(objc, objv);
    VALIDATE_ARGC(objc, objv);
    return DigestDataHandler(interp, objv[1], EVP_md4(), NULL, HEX_FORMAT | TYPE_MD, NULL, NULL);
}

int MD5ObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
    validate_argc(objc, objv);
    VALIDATE_ARGC(objc, objv);
    return DigestDataHandler(interp, objv[1], EVP_md5(), NULL, HEX_FORMAT | TYPE_MD, NULL, NULL);
}

int SHA1ObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
    validate_argc(objc, objv);
    VALIDATE_ARGC(objc, objv);
    return DigestDataHandler(interp, objv[1], EVP_sha1(), NULL, HEX_FORMAT | TYPE_MD, NULL, NULL);
}

int SHA256ObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
    validate_argc(objc, objv);
    VALIDATE_ARGC(objc, objv);
    return DigestDataHandler(interp, objv[1], EVP_sha256(), NULL, HEX_FORMAT | TYPE_MD, NULL, NULL);
}

int SHA512ObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
    validate_argc(objc, objv);
    VALIDATE_ARGC(objc, objv);
    return DigestDataHandler(interp, objv[1], EVP_sha512(), NULL, HEX_FORMAT | TYPE_MD, NULL, NULL);
}

/*
 *-------------------------------------------------------------------
 *
 * Tls_DigestCommands --
︙

Modified generic/tlsInfo.c from [95753c0faa] to [13359ae431].

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static const char *protocols[] = {
	"ssl2", "ssl3", "tls1", "tls1.1", "tls1.2", "tls1.3", NULL
};
enum protocol {
    TLS_SSL2, TLS_SSL3, TLS_TLS1, TLS_TLS1_1, TLS_TLS1_2, TLS_TLS1_3, TLS_NONE
};

/*******************************************************************/

/*
 *-------------------------------------------------------------------
 *
 * NamesCallback --
 *
 *	Callback to add algorithm or method names to a TCL list object.
 *
 * Results:
 *	Append name to TCL list object.
 *
 * Side effects:
 *	None.
 *
 *-------------------------------------------------------------------
 */
void NamesCallback(const OBJ_NAME *obj, void *arg) {
    Tcl_Obj *objPtr = (Tcl_Obj *) arg;
    Tcl_Obj *listObj = (Tcl_Obj *) arg;

    /* Fields: (int) type and alias, (const char*) name (alias from) and data (alias to) */
    if (strstr(obj->name, "rsa") == NULL && strstr(obj->name, "RSA") == NULL) {
	Tcl_ListObjAppendElement(NULL, objPtr, Tcl_NewStringObj(obj->name,-1));
	Tcl_ListObjAppendElement(NULL, listObj, Tcl_NewStringObj(obj->name,-1));
    }
}

/*******************************************************************/

/*
 *-------------------------------------------------------------------
 *
 * CipherObjCmd --
 * CipherInfo --
 *
 *	Return a list of properties and values for cipherName.
 *	Return a list of properties and values for cipher.
 *
 * Results:
 *	A standard Tcl list.
 *
 * Side effects:
 *	None.
 *
 *-------------------------------------------------------------------
 */
static int CipherObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
int CipherInfo(Tcl_Interp *interp, Tcl_Obj *nameObj) {
    Tcl_Obj *objPtr, *listPtr;
    unsigned char *cipherName = NULL, *modeName = NULL;
    const EVP_CIPHER *cipher;
    Tcl_Obj *resultObj, *listObj;
    unsigned long flags, mode;

    unsigned char *modeName = NULL;
    dprintf("Called");

    char *name = Tcl_GetStringFromObj(nameObj,NULL);
    /* Clear errors */
    Tcl_ResetResult(interp);
    ERR_clear_error();

    /* Validate arg count */
    if (objc != 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "name");
	return TCL_ERROR;
    }

    /* Get cipher */
    cipherName = Tcl_GetStringFromObj(objv[1], NULL);
    cipher = EVP_get_cipherbyname(cipherName);
    cipher = EVP_get_cipherbyname(name);

    if (cipher == NULL) {
	Tcl_AppendResult(interp, "Invalid cipher \"", cipherName, "\"", NULL);
	Tcl_AppendResult(interp, "Invalid cipher \"", name, "\"", NULL);
	return TCL_ERROR;
    }

    /* Get properties */
    objPtr = Tcl_NewListObj(0, NULL);
    if (objPtr == NULL) {
    resultObj = Tcl_NewListObj(0, NULL);
    if (resultObj == NULL) {
	return TCL_ERROR;
    }
    LAPPEND_STR(interp, objPtr, "nid", OBJ_nid2ln(EVP_CIPHER_nid(cipher)), -1);
    LAPPEND_STR(interp, objPtr, "name", EVP_CIPHER_name(cipher), -1);
    LAPPEND_STR(interp, objPtr, "description", "", -1);
    LAPPEND_INT(interp, objPtr, "block_size", EVP_CIPHER_block_size(cipher));
    LAPPEND_INT(interp, objPtr, "key_length", EVP_CIPHER_key_length(cipher));
    LAPPEND_INT(interp, objPtr, "iv_length", EVP_CIPHER_iv_length(cipher));
    LAPPEND_STR(interp, objPtr, "type", OBJ_nid2ln(EVP_CIPHER_type(cipher)), -1);
    LAPPEND_STR(interp, objPtr, "provider", "", -1);
    LAPPEND_STR(interp, resultObj, "nid", OBJ_nid2ln(EVP_CIPHER_nid(cipher)), -1);
    LAPPEND_STR(interp, resultObj, "name", EVP_CIPHER_name(cipher), -1);
    LAPPEND_STR(interp, resultObj, "description", "", -1);
    LAPPEND_INT(interp, resultObj, "block_size", EVP_CIPHER_block_size(cipher));
    LAPPEND_INT(interp, resultObj, "key_length", EVP_CIPHER_key_length(cipher));
    LAPPEND_INT(interp, resultObj, "iv_length", EVP_CIPHER_iv_length(cipher));
    LAPPEND_STR(interp, resultObj, "type", OBJ_nid2ln(EVP_CIPHER_type(cipher)), -1);
    LAPPEND_STR(interp, resultObj, "provider", "", -1);
    flags = EVP_CIPHER_flags(cipher);
    mode  = EVP_CIPHER_mode(cipher);

    /* EVP_CIPHER_get_mode */
    switch(mode) {
	case EVP_CIPH_STREAM_CIPHER:
	    modeName = "STREAM";
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	case EVP_CIPH_WRAP_MODE :
	    modeName = "WRAP";
	    break;
	default:
	    modeName = "unknown";
	    break;
    }
    LAPPEND_STR(interp, objPtr, "mode", modeName, -1);
    LAPPEND_STR(interp, resultObj, "mode", modeName, -1);

    /* Flags */
    listPtr = Tcl_NewListObj(0, NULL);
    LAPPEND_BOOL(interp, listPtr, "Variable Length", flags & EVP_CIPH_VARIABLE_LENGTH);
    LAPPEND_BOOL(interp, listPtr, "Always Call Init", flags & EVP_CIPH_ALWAYS_CALL_INIT);
    LAPPEND_BOOL(interp, listPtr, "Custom IV", flags & EVP_CIPH_CUSTOM_IV);
    LAPPEND_BOOL(interp, listPtr, "Control Init", flags & EVP_CIPH_CTRL_INIT);
    LAPPEND_BOOL(interp, listPtr, "Custom Cipher", flags & EVP_CIPH_FLAG_CUSTOM_CIPHER);
    LAPPEND_BOOL(interp, listPtr, "AEAD Cipher", flags & EVP_CIPH_FLAG_AEAD_CIPHER);
    LAPPEND_BOOL(interp, listPtr, "Custom Copy", flags & EVP_CIPH_CUSTOM_COPY);
    LAPPEND_BOOL(interp, listPtr, "Non FIPS Allow", flags & EVP_CIPH_FLAG_NON_FIPS_ALLOW);
    LAPPEND_OBJ(interp, objPtr, "flags", listPtr);
    listObj = Tcl_NewListObj(0, NULL);
    LAPPEND_BOOL(interp, listObj, "Variable Length", flags & EVP_CIPH_VARIABLE_LENGTH);
    LAPPEND_BOOL(interp, listObj, "Always Call Init", flags & EVP_CIPH_ALWAYS_CALL_INIT);
    LAPPEND_BOOL(interp, listObj, "Custom IV", flags & EVP_CIPH_CUSTOM_IV);
    LAPPEND_BOOL(interp, listObj, "Control Init", flags & EVP_CIPH_CTRL_INIT);
    LAPPEND_BOOL(interp, listObj, "Custom Cipher", flags & EVP_CIPH_FLAG_CUSTOM_CIPHER);
    LAPPEND_BOOL(interp, listObj, "AEAD Cipher", flags & EVP_CIPH_FLAG_AEAD_CIPHER);
    LAPPEND_BOOL(interp, listObj, "Custom Copy", flags & EVP_CIPH_CUSTOM_COPY);
    LAPPEND_BOOL(interp, listObj, "Non FIPS Allow", flags & EVP_CIPH_FLAG_NON_FIPS_ALLOW);
    LAPPEND_OBJ(interp, resultObj, "flags", listObj);

    Tcl_SetObjResult(interp, objPtr);
    Tcl_SetObjResult(interp, resultObj);
    return TCL_OK;
}

/*
 *-------------------------------------------------------------------
 *
 * CipherList --
 *
 *	Return a list of all cipher algorithms
 *
 * Results:
 *	A standard Tcl list.
 *
 * Side effects:
 *	None.
 *
 *-------------------------------------------------------------------
 */
int CipherList(Tcl_Interp *interp) {
    Tcl_Obj *objPtr = Tcl_NewListObj(0, NULL);
    if (objPtr == NULL) {
    Tcl_Obj *resultObj = Tcl_NewListObj(0, NULL);
    if (resultObj == NULL) {
	return TCL_ERROR;
    }

    /* Same as EVP_CIPHER_do_all */
    OBJ_NAME_do_all(OBJ_NAME_TYPE_CIPHER_METH, NamesCallback, (void *) objPtr);
    Tcl_SetObjResult(interp, objPtr);
    OBJ_NAME_do_all(OBJ_NAME_TYPE_CIPHER_METH, NamesCallback, (void *) resultObj);
    Tcl_SetObjResult(interp, resultObj);
    return TCL_OK;
}

/*
 *-------------------------------------------------------------------
 *
 * CipherObjCmd --
 *
 *	Return a list of properties and values for cipherName.
 *
 * Results:
 *	A standard Tcl list.
 *
 * Side effects:
 *	None.
 *
 *-------------------------------------------------------------------
 */
static int CipherObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
    dprintf("Called");

    /* Clear errors */
    Tcl_ResetResult(interp);
    ERR_clear_error();

    /* Validate arg count */
    if (objc == 1) {
	return CipherList(interp);

    } else if (objc == 2) {
	return CipherInfo(interp, objv[1]);

    } else {
	Tcl_WrongNumArgs(interp, 1, objv, "?name?");
	return TCL_ERROR;
    }
    return TCL_OK;
	clientData = clientData;
}

/*
 *-------------------------------------------------------------------
 *
 * CiphersObjCmd --
 *
︙
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	sk = SSL_get1_supported_ciphers(ssl);
    } else {
	sk = SSL_get_ciphers(ssl);
	/*sk = SSL_CTX_get_ciphers(ctx);*/
    }

    if (sk != NULL) {
	Tcl_Obj *objPtr = NULL;
	Tcl_Obj *resultObj = NULL;

	if (!verbose) {
	    char *cp;
	    objPtr = Tcl_NewListObj(0, NULL);
	    if (objPtr == NULL) {
	    resultObj = Tcl_NewListObj(0, NULL);
	    if (resultObj == NULL) {
		res = TCL_ERROR;
		goto done;
	    }

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

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

	} else {
	    char buf[BUFSIZ];
	    objPtr = Tcl_NewStringObj("",0);
	    if (objPtr == NULL) {
	    resultObj = Tcl_NewStringObj("",0);
	    if (resultObj == NULL) {
		res = TCL_ERROR;
		goto done;
	    }

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

		/* textual description of the cipher */
		if (SSL_CIPHER_description(c, buf, sizeof(buf)) != NULL) {
		    Tcl_AppendToObj(objPtr, buf, (Tcl_Size) strlen(buf));
		    Tcl_AppendToObj(resultObj, buf, (Tcl_Size) strlen(buf));
		} else {
		    Tcl_AppendToObj(objPtr, "UNKNOWN\n", 8);
		    Tcl_AppendToObj(resultObj, "UNKNOWN\n", 8);
		}
	    }
	}

	/* Clean up */
	if (use_supported) {
	    sk_SSL_CIPHER_free(sk);
	}
	Tcl_SetObjResult(interp, objPtr);
	Tcl_SetObjResult(interp, resultObj);
    }

done:
    SSL_free(ssl);
    SSL_CTX_free(ctx);
    return res;
	clientData = clientData;
}

/*******************************************************************/

/*
 *-------------------------------------------------------------------
 *
 * DigestInfo --
 *
 *	Return a list of properties and values for digestName.
 *	Return a list of properties and values for digest.
 *
 * Results:
 *	A standard Tcl list.
 *
 * Side effects:
 *	None.
 *
 *-------------------------------------------------------------------
 */
int DigestInfo(Tcl_Interp *interp, char *digestName) {
int DigestInfo(Tcl_Interp *interp, Tcl_Obj *nameObj) {
    EVP_MD *md;
    Tcl_Obj *objPtr, *listPtr;
    Tcl_Obj *resultObj, *listObj;
    unsigned long flags;
    int res = TCL_OK;
    char *name = Tcl_GetStringFromObj(nameObj,NULL);

    /* Get message digest */
    md = EVP_get_digestbyname(digestName);
    md = EVP_get_digestbyname(name);

    if (md == NULL) {
	Tcl_AppendResult(interp, "Invalid digest \"", digestName, "\"", NULL);
	Tcl_AppendResult(interp, "Invalid digest \"", name, "\"", NULL);
	return TCL_ERROR;
    }

    /* Get properties */
    objPtr = Tcl_NewListObj(0, NULL);
    if (objPtr == NULL) {
    resultObj = Tcl_NewListObj(0, NULL);
    if (resultObj == NULL) {
	return TCL_ERROR;
    }
    LAPPEND_STR(interp, objPtr, "name", EVP_MD_name(md), -1);
    LAPPEND_STR(interp, objPtr, "description", "", -1);
    LAPPEND_INT(interp, objPtr, "size", EVP_MD_size(md));
    LAPPEND_INT(interp, objPtr, "block_size", EVP_MD_block_size(md));
    LAPPEND_STR(interp, objPtr, "provider", "", -1);
    LAPPEND_STR(interp, objPtr, "type", OBJ_nid2ln(EVP_MD_type(md)), -1);
    LAPPEND_STR(interp, objPtr, "pkey_type", OBJ_nid2ln(EVP_MD_pkey_type(md)), -1);
    LAPPEND_STR(interp, resultObj, "name", EVP_MD_name(md), -1);
    LAPPEND_STR(interp, resultObj, "description", "", -1);
    LAPPEND_INT(interp, resultObj, "size", EVP_MD_size(md));
    LAPPEND_INT(interp, resultObj, "block_size", EVP_MD_block_size(md));
    LAPPEND_STR(interp, resultObj, "provider", "", -1);
    LAPPEND_STR(interp, resultObj, "type", OBJ_nid2ln(EVP_MD_type(md)), -1);
    LAPPEND_STR(interp, resultObj, "pkey_type", OBJ_nid2ln(EVP_MD_pkey_type(md)), -1);
    flags = EVP_MD_flags(md);

    /* Flags */
    listPtr = Tcl_NewListObj(0, NULL);
    LAPPEND_BOOL(interp, listPtr, "One-shot", flags & EVP_MD_FLAG_ONESHOT);
    LAPPEND_BOOL(interp, listPtr, "XOF", flags & EVP_MD_FLAG_XOF);
    LAPPEND_BOOL(interp, listPtr, "DigestAlgorithmId_NULL", flags & EVP_MD_FLAG_DIGALGID_NULL);
    LAPPEND_BOOL(interp, listPtr, "DigestAlgorithmId_Abscent", flags & EVP_MD_FLAG_DIGALGID_ABSENT);
    LAPPEND_BOOL(interp, listPtr, "DigestAlgorithmId_Custom", flags & EVP_MD_FLAG_DIGALGID_CUSTOM);
    LAPPEND_BOOL(interp, listPtr, "FIPS", flags & EVP_MD_FLAG_FIPS);
    LAPPEND_OBJ(interp, objPtr, "flags", listPtr);
    listObj = Tcl_NewListObj(0, NULL);
    LAPPEND_BOOL(interp, listObj, "One-shot", flags & EVP_MD_FLAG_ONESHOT);
    LAPPEND_BOOL(interp, listObj, "XOF", flags & EVP_MD_FLAG_XOF);
    LAPPEND_BOOL(interp, listObj, "DigestAlgorithmId_NULL", flags & EVP_MD_FLAG_DIGALGID_NULL);
    LAPPEND_BOOL(interp, listObj, "DigestAlgorithmId_Abscent", flags & EVP_MD_FLAG_DIGALGID_ABSENT);
    LAPPEND_BOOL(interp, listObj, "DigestAlgorithmId_Custom", flags & EVP_MD_FLAG_DIGALGID_CUSTOM);
    LAPPEND_BOOL(interp, listObj, "FIPS", flags & EVP_MD_FLAG_FIPS);
    LAPPEND_OBJ(interp, resultObj, "flags", listObj);

    Tcl_SetObjResult(interp, objPtr);
    Tcl_SetObjResult(interp, resultObj);
    return TCL_OK;
}

/*
 *-------------------------------------------------------------------
 *
 * DigestList --
 *
 *	Return a list of all digest algorithms
 *
 * Results:
 *	A standard Tcl list.
 *
 * Side effects:
 *	None.
 *
 *-------------------------------------------------------------------
 */
int DigestList(Tcl_Interp *interp) {
    Tcl_Obj *objPtr = Tcl_NewListObj(0, NULL);
    if (objPtr == NULL) {
    Tcl_Obj *resultObj = Tcl_NewListObj(0, NULL);
    if (resultObj == NULL) {
	return TCL_ERROR;
    }

    /* Same as EVP_MD_do_all */
    OBJ_NAME_do_all(OBJ_NAME_TYPE_MD_METH, NamesCallback, (void *) objPtr);
    Tcl_SetObjResult(interp, objPtr);
    OBJ_NAME_do_all(OBJ_NAME_TYPE_MD_METH, NamesCallback, (void *) resultObj);
    Tcl_SetObjResult(interp, resultObj);
    return TCL_OK;
}

/*
 *-------------------------------------------------------------------
 *
 * DigestsObjCmd --
 *
 *	Return a list of all valid hash algorithms or message digests.
 *
 * Results:
 *	A standard Tcl list.
 *
 * Side effects:
 *	None.
 *
 *-------------------------------------------------------------------
 */
int DigestsObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
    dprintf("Called");

    /* Clear errors */
    Tcl_ResetResult(interp);
    ERR_clear_error();


    /* Validate arg count */
    if (objc == 1) {
	return DigestList(interp);

    } else if (objc == 2) {
	return DigestInfo(interp, Tcl_GetStringFromObj(objv[1],NULL));
	return DigestInfo(interp, objv[1]);

    } else {
	Tcl_WrongNumArgs(interp, 1, objv, "?name?");
	return TCL_ERROR;
    }
    return TCL_OK;
	clientData = clientData;
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 *	A standard Tcl list.
 *
 * Side effects:
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 *
 *-------------------------------------------------------------------
 */
int MacInfo(Tcl_Interp *interp, char *macName) {
    if (strcmp(macName, "cmac") != 0 && strcmp(macName, "hmac") != 0) {
	Tcl_AppendResult(interp, "Invalid MAC \"", macName, "\"", NULL);
int MacInfo(Tcl_Interp *interp, Tcl_Obj *nameObj) {
    Tcl_Obj *resultObj;
    int res = TCL_OK;
    char *name = Tcl_GetStringFromObj(nameObj,NULL);

    if (strcmp(name, "cmac") != 0 && strcmp(name, "hmac") != 0) {
	Tcl_AppendResult(interp, "Invalid MAC \"", name, "\"", NULL);
	return TCL_ERROR;
    }

    /* Get properties */
    objPtr = Tcl_NewListObj(0, NULL);
    if (objPtr == NULL) {
    resultObj = Tcl_NewListObj(0, NULL);
    if (resultObj == NULL) {
	return TCL_ERROR;
    }
    LAPPEND_STR(interp, objPtr, "name", macName, -1);
    LAPPEND_STR(interp, objPtr, "description", "", -1);
    LAPPEND_STR(interp, objPtr, "provider", "", -1);
    LAPPEND_STR(interp, resultObj, "name", name, -1);
    LAPPEND_STR(interp, resultObj, "description", "", -1);
    LAPPEND_STR(interp, resultObj, "provider", "", -1);

    Tcl_SetObjResult(interp, objPtr);
    return TCL_OK;
    Tcl_SetObjResult(interp, resultObj);
    return res;
}

/*
 *-------------------------------------------------------------------
 *
 * MacList --
 *
 *	Return a list of all MAC algorithms
 *
 * Results:
 *	A standard Tcl list.
 *
 * Side effects:
 *	None.
 *
 *-------------------------------------------------------------------
 */
int MacList(Tcl_Interp *interp) {
    Tcl_Obj *objPtr = Tcl_NewListObj(0, NULL);
    if (objPtr == NULL) {
    Tcl_Obj *resultObj = Tcl_NewListObj(0, NULL);
    if (resultObj == NULL) {
	return TCL_ERROR;
    }

    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("cmac", -1));
    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("hmac", -1));
    Tcl_SetObjResult(interp, objPtr);
    Tcl_ListObjAppendElement(interp, resultObj, Tcl_NewStringObj("cmac", -1));
    Tcl_ListObjAppendElement(interp, resultObj, Tcl_NewStringObj("hmac", -1));
    Tcl_SetObjResult(interp, resultObj);
    return TCL_OK;
}

/*
 *-------------------------------------------------------------------
 *
 * MacsObjCmd --
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    ERR_clear_error();

    /* Validate arg count */
    if (objc == 1) {
	return MacList(interp);

    } else if (objc == 2) {
	return MacInfo(interp, Tcl_GetStringFromObj(objv[1],NULL));
	return MacInfo(interp, objv[1]);

    } else {
	Tcl_WrongNumArgs(interp, 1, objv, "?name?");
	return TCL_ERROR;
    }
    return TCL_OK;
	clientData = clientData;
}

/*******************************************************************/

/*
 *-------------------------------------------------------------------
 *
 * PkeyInfo --
 *
 *	Return a list of properties and values for pkeyName.
 *	Return a list of properties and values for pkey.
 *
 * Results:
 *	A standard Tcl list.
 *
 * Side effects:
 *	None.
 *
 *-------------------------------------------------------------------
 */
int PkeyInfo(Tcl_Interp *interp, char *pkeyName) {
    Tcl_Obj *objPtr;
int PkeyInfo(Tcl_Interp *interp, Tcl_Obj *nameObj) {
    Tcl_Obj *resultObj;
    int res = TCL_OK;
    char *name = Tcl_GetStringFromObj(nameObj,NULL);
    EVP_PKEY *pkey = NULL;

/* In work */
    if (pkey == NULL) {
	Tcl_AppendResult(interp, "Invalid public key method \"", pkeyName, "\"", NULL);
	Tcl_AppendResult(interp, "Invalid public key method \"", name, "\"", NULL);
	return TCL_ERROR;
    }

    /* Get properties */
    objPtr = Tcl_NewListObj(0, NULL);
    if (objPtr == NULL) {
    resultObj = Tcl_NewListObj(0, NULL);
    if (resultObj == NULL) {
	return TCL_ERROR;
    }
    LAPPEND_STR(interp, objPtr, "name", OBJ_nid2ln(EVP_PKEY_id(pkey)), -1);
    LAPPEND_STR(interp, objPtr, "description", "", -1);
    LAPPEND_STR(interp, objPtr, "baseId", OBJ_nid2ln(EVP_PKEY_base_id(pkey)), -1);
    LAPPEND_STR(interp, objPtr, "provider", "", -1);
    LAPPEND_STR(interp, objPtr, "type", OBJ_nid2ln(EVP_PKEY_type(EVP_PKEY_id(pkey))), -1);
    LAPPEND_STR(interp, resultObj, "name", OBJ_nid2ln(EVP_PKEY_id(pkey)), -1);
    LAPPEND_STR(interp, resultObj, "description", "", -1);
    LAPPEND_INT(interp, resultObj, "size", EVP_PKEY_size(pkey));
    LAPPEND_INT(interp, resultObj, "bits", EVP_PKEY_bits(pkey));
    LAPPEND_INT(interp, resultObj, "security_bits", EVP_PKEY_security_bits(pkey));
    LAPPEND_STR(interp, resultObj, "baseId", OBJ_nid2ln(EVP_PKEY_base_id(pkey)), -1);
    LAPPEND_STR(interp, resultObj, "provider", "", -1);
    LAPPEND_STR(interp, resultObj, "type", OBJ_nid2ln(EVP_PKEY_type(EVP_PKEY_id(pkey))), -1);

    {
	int pnid;
    LAPPEND_INT(interp, objPtr, "size", EVP_PKEY_size(pkey));
    LAPPEND_INT(interp, objPtr, "bits", EVP_PKEY_bits(pkey));
	if (EVP_PKEY_get_default_digest_nid(pkey, &pnid) > 0) {
	    LAPPEND_STR(interp, resultObj, "default_digest", OBJ_nid2ln(pnid), -2);
    LAPPEND_INT(interp, objPtr, "security_bits", EVP_PKEY_security_bits(pkey));

    Tcl_SetObjResult(interp, objPtr);
    return TCL_OK;
	}
    }

    Tcl_SetObjResult(interp, resultObj);
    return res;
}

/*
 *-------------------------------------------------------------------
 *
 * PkeyList --
 *
 *	Return a list of all public key methods
 *
 * Results:
 *	A standard Tcl list.
 *
 * Side effects:
 *	None.
 *
 *-------------------------------------------------------------------
 */
int PkeyList(Tcl_Interp *interp) {
    Tcl_Obj *objPtr = Tcl_NewListObj(0, NULL);
    if (objPtr == NULL) {
    Tcl_Obj *resultObj = Tcl_NewListObj(0, NULL);
    if (resultObj == NULL) {
	return TCL_ERROR;
    }

    for (size_t i = 0; i < EVP_PKEY_meth_get_count(); i++) {
        const EVP_PKEY_METHOD *pmeth = EVP_PKEY_meth_get0(i);
        int pkey_id, pkey_flags;

        EVP_PKEY_meth_get0_info(&pkey_id, &pkey_flags, pmeth);
	/*LAPPEND_STR(interp, objPtr, "name", OBJ_nid2ln(pkey_id), -1);
	LAPPEND_STR(interp, objPtr, "type", pkey_flags & ASN1_PKEY_DYNAMIC ? "External" : "Built-in", -1);*/
	/*LAPPEND_STR(interp, resultObj, "name", OBJ_nid2ln(pkey_id), -1);
	LAPPEND_STR(interp, resultObj, "type", pkey_flags & ASN1_PKEY_DYNAMIC ? "External" : "Built-in", -1);*/

	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(OBJ_nid2ln(pkey_id), -1));
	Tcl_ListObjAppendElement(interp, resultObj, Tcl_NewStringObj(OBJ_nid2ln(pkey_id), -1));
    }
    Tcl_SetObjResult(interp, objPtr);
    Tcl_SetObjResult(interp, resultObj);
    return TCL_OK;
}

/*
 *-------------------------------------------------------------------
 *
 * PkeysObjCmd --
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    ERR_clear_error();

    /* Validate arg count */
    if (objc == 1) {
	return PkeyList(interp);

    } else if (objc == 2) {
	return PkeyInfo(interp, Tcl_GetStringFromObj(objv[1],NULL));
	return PkeyInfo(interp, objv[1]);

    } else {
	Tcl_WrongNumArgs(interp, 1, objv, "?name?");
	return TCL_ERROR;
    }
    return TCL_OK;
	clientData = clientData;
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 * Side effects:
 *	none
 *
 *-------------------------------------------------------------------
 */
static int
ProtocolsObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
    Tcl_Obj *objPtr;
    Tcl_Obj *resultObj;

    dprintf("Called");

    /* Clear errors */
    Tcl_ResetResult(interp);
    ERR_clear_error();

    /* Validate arg count */
    if (objc != 1) {
	Tcl_WrongNumArgs(interp, 1, objv, NULL);
	return TCL_ERROR;
    }

    /* List all protocols */
    objPtr = Tcl_NewListObj(0, NULL);
    if (objPtr == NULL) {
    resultObj = Tcl_NewListObj(0, NULL);
    if (resultObj == NULL) {
	return TCL_ERROR;
    }
#if OPENSSL_VERSION_NUMBER < 0x10100000L && !defined(NO_SSL2) && !defined(OPENSSL_NO_SSL2)
    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(protocols[TLS_SSL2], -1));
    Tcl_ListObjAppendElement(interp, resultObj, Tcl_NewStringObj(protocols[TLS_SSL2], -1));
#endif
#if !defined(NO_SSL3) && !defined(OPENSSL_NO_SSL3) && !defined(OPENSSL_NO_SSL3_METHOD)
    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(protocols[TLS_SSL3], -1));
    Tcl_ListObjAppendElement(interp, resultObj, Tcl_NewStringObj(protocols[TLS_SSL3], -1));
#endif
#if !defined(NO_TLS1) && !defined(OPENSSL_NO_TLS1) && !defined(OPENSSL_NO_TLS1_METHOD)
    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(protocols[TLS_TLS1], -1));
    Tcl_ListObjAppendElement(interp, resultObj, Tcl_NewStringObj(protocols[TLS_TLS1], -1));
#endif
#if !defined(NO_TLS1_1) && !defined(OPENSSL_NO_TLS1_1) && !defined(OPENSSL_NO_TLS1_1_METHOD)
    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(protocols[TLS_TLS1_1], -1));
    Tcl_ListObjAppendElement(interp, resultObj, Tcl_NewStringObj(protocols[TLS_TLS1_1], -1));
#endif
#if !defined(NO_TLS1_2) && !defined(OPENSSL_NO_TLS1_2) && !defined(OPENSSL_NO_TLS1_2_METHOD)
    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(protocols[TLS_TLS1_2], -1));
    Tcl_ListObjAppendElement(interp, resultObj, Tcl_NewStringObj(protocols[TLS_TLS1_2], -1));
#endif
#if !defined(NO_TLS1_3) && !defined(OPENSSL_NO_TLS1_3)
    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(protocols[TLS_TLS1_3], -1));
    Tcl_ListObjAppendElement(interp, resultObj, Tcl_NewStringObj(protocols[TLS_TLS1_3], -1));
#endif
    Tcl_SetObjResult(interp, objPtr);
    Tcl_SetObjResult(interp, resultObj);
    return TCL_OK;
	clientData = clientData;
}

/*******************************************************************/

/*
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-
+









-
-
+
+








 * Side effects:
 *	None.
 *
 *-------------------------------------------------------------------
 */
static int
VersionObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
    Tcl_Obj *objPtr;
    Tcl_Obj *resultObj;

    dprintf("Called");

    /* Validate arg count */
    if (objc != 1) {
	Tcl_WrongNumArgs(interp, 1, objv, NULL);
	return TCL_ERROR;
    }

    objPtr = Tcl_NewStringObj(OPENSSL_VERSION_TEXT, -1);
    Tcl_SetObjResult(interp, objPtr);
    resultObj = Tcl_NewStringObj(OPENSSL_VERSION_TEXT, -1);
    Tcl_SetObjResult(interp, resultObj);
    return TCL_OK;
	clientData = clientData;
}

/*******************************************************************/

/*
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+

    Tcl_CreateObjCommand(interp, "tls::digests", DigestsObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
    Tcl_CreateObjCommand(interp, "tls::macs", MacsObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
    Tcl_CreateObjCommand(interp, "tls::pkeys", PkeysObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
    Tcl_CreateObjCommand(interp, "tls::protocols", ProtocolsObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
    Tcl_CreateObjCommand(interp, "tls::version", VersionObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
    return TCL_OK;
}

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