Check-in [35be4894ce]
Overview
Comment:Added Issuer Alt Name to X509 status, refactored get SAN and CRL
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SHA3-256: 35be4894cebc716f8e853196d0d0025de50da8732bcd71d7fb9c41fb8e96e63a
User & Date: bohagan on 2023-08-07 03:27:12
Other Links: branch diff | manifest | tags
Context
2023-08-10
03:16
Reordered get parameters in Tls_NewX509Obj to follow RFC 5280 section order. Added get self issued, Key usage, Extended Key usage, and purpose values. Added more comments, optimized code, etc. check-in: 10bcd4c88f user: bohagan tags: status_x509
2023-08-07
03:27
Added Issuer Alt Name to X509 status, refactored get SAN and CRL check-in: 35be4894ce user: bohagan tags: status_x509
2023-08-02
01:17
Added Certificate Revocation List (CRL) to X509 status. Moved get X509 extension items to end of function. check-in: f22fb82c96 user: bohagan tags: status_x509
Changes

Modified generic/tlsIO.c from [ede520a139] to [55240df165].

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	    dprintf("Asked to wait for a TLS handshake that has already failed.  Returning soft error");
	    *errorCodePtr = ECONNRESET;
	}
	return(-1);
    }

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

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







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	    dprintf("Asked to wait for a TLS handshake that has already failed.  Returning soft error");
	    *errorCodePtr = ECONNRESET;
	}
	return(-1);
    }

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

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

Modified generic/tlsX509.c from [6962c4384a] to [581b34e1fe].

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	equivalent to the subject CA's subjectDomainPolicy. */

    /* Subject Alternative Name (SAN) extension. Additional URLs, DNS name, or IP addresses
	bound to certificate. */
    san = X509_get_ext_d2i(cert, NID_subject_alt_name, NULL, NULL);
    if (san) {
	Tcl_Obj *namesPtr = Tcl_NewListObj(0, NULL);


	for (int i=0; i < sk_GENERAL_NAME_num(san); i++)         {
	    const GENERAL_NAME *name = sk_GENERAL_NAME_value(san, i);
	    size_t len2;

	    if (name) {
		if (name->type == GEN_DNS) {
		    char *dns_name;

		    if ((len2 = ASN1_STRING_to_UTF8(&dns_name, name->d.dNSName)) > 0) {

			Tcl_ListObjAppendElement(interp, namesPtr, Tcl_NewStringObj(dns_name, (int)len2));



			OPENSSL_free (dns_name);



		    }
		} else if (name->type == GEN_IPADD) {





		    /* name->d.iPAddress */









		}
	    }
	}

	sk_GENERAL_NAME_pop_free(san, GENERAL_NAME_free);
	Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("subjectAltName", -1));
	Tcl_ListObjAppendElement(interp, certPtr, namesPtr);
    }

    /* Get the STACK of all crl distribution point entries for this certificate. */
    /* CRL_DIST_POINTS is typedef on STACK_OF(DIST_POINT). */
    crl = X509_get_ext_d2i(cert, NID_crl_distribution_points, NULL, NULL);
    if (crl) {
	Tcl_Obj *namesPtr = Tcl_NewListObj(0, NULL);

	for (int i=0; i < sk_GENERAL_NAME_num(crl); i++)         {
	    const GENERAL_NAME *name = sk_GENERAL_NAME_value(crl, i);
	    size_t len2;

	    if (name) {
		if (name->type == GEN_DNS) {
		    char *dns_name;



		    if ((len2 = ASN1_STRING_to_UTF8(&dns_name, name->d.dNSName)) > 0) {

			Tcl_ListObjAppendElement(interp, namesPtr, Tcl_NewStringObj(dns_name, (int)len2));
			OPENSSL_free (dns_name);

		    }

		} else if (name->type == GEN_IPADD) {
		    /* name->d.iPAddress */





		}
	    }
	}
	sk_GENERAL_NAME_pop_free(crl, GENERAL_NAME_free);
	Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("cRLDistributionPoints", -1));
	Tcl_ListObjAppendElement(interp, certPtr, namesPtr);
    }


    /* Issuer Alternative Name */
    /* Subject Directory Attributes */

    /* Basic Constraints - identifies whether the subject of the certificate is a CA and
	the maximum depth of valid certification paths that include this certificate. */

    /* Get OSCP URL */
    ocsp = X509_get1_ocsp(cert);







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	equivalent to the subject CA's subjectDomainPolicy. */

    /* Subject Alternative Name (SAN) extension. Additional URLs, DNS name, or IP addresses
	bound to certificate. */
    san = X509_get_ext_d2i(cert, NID_subject_alt_name, NULL, NULL);
    if (san) {
	Tcl_Obj *namesPtr = Tcl_NewListObj(0, NULL);
	bio = BIO_new(BIO_s_mem());

	for (int i=0; i < sk_GENERAL_NAME_num(san); i++) {
	    const GENERAL_NAME *name = sk_GENERAL_NAME_value(san, i);


	    if (name && bio) {

		if (GENERAL_NAME_print(bio, name)) {
		    int n = BIO_read(bio, buffer, min(BIO_pending(bio), BUFSIZ));
		    buffer[max(n, 0)] = 0;
		    (void)BIO_flush(bio);
		    Tcl_ListObjAppendElement(interp, namesPtr, Tcl_NewStringObj(buffer, n));
		}
	    }
	}
	BIO_free(bio);
	sk_GENERAL_NAME_pop_free(san, GENERAL_NAME_free);
	Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("subjectAltName", -1));
	Tcl_ListObjAppendElement(interp, certPtr, namesPtr);
    }

    /* Issuer Alternative Name */
    san = X509_get_ext_d2i(cert, NID_issuer_alt_name, NULL, NULL);
    if (san) {
	Tcl_Obj *namesPtr = Tcl_NewListObj(0, NULL);
	bio = BIO_new(BIO_s_mem());

	for (int i=0; i < sk_GENERAL_NAME_num(san); i++) {
	    const GENERAL_NAME *name = sk_GENERAL_NAME_value(san, i);

	    if (name && bio) {
		if (GENERAL_NAME_print(bio, name)) {
		    int n = BIO_read(bio, buffer, min(BIO_pending(bio), BUFSIZ));
		    buffer[max(n, 0)] = 0;
		    (void)BIO_flush(bio);
		    Tcl_ListObjAppendElement(interp, namesPtr, Tcl_NewStringObj(buffer, n));
		}
	    }
	}
	BIO_free(bio);
	sk_GENERAL_NAME_pop_free(san, GENERAL_NAME_free);
	Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("issuerAltName", -1));
	Tcl_ListObjAppendElement(interp, certPtr, namesPtr);
    }

    /* Get the STACK of all crl distribution point entries for this certificate. */
    /* CRL_DIST_POINTS is typedef on STACK_OF(DIST_POINT). */
    crl = X509_get_ext_d2i(cert, NID_crl_distribution_points, NULL, NULL);
    if (crl) {
	Tcl_Obj *namesPtr = Tcl_NewListObj(0, NULL);

	for (int i=0; i < sk_DIST_POINT_num(crl); i++) {
	    DIST_POINT *dp = sk_DIST_POINT_value(crl, i);
	    DIST_POINT_NAME *distpoint = dp->distpoint;


	    if (distpoint->type == 0) {
		/* fullname GENERALIZEDNAME */
		for (int j = 0; j < sk_GENERAL_NAME_num(distpoint->name.fullname); j++) {
		    GENERAL_NAME *gen = sk_GENERAL_NAME_value(distpoint->name.fullname, j);
		    int type;
		    ASN1_STRING *uri = GENERAL_NAME_get0_value(gen, &type);
		    if (type == GEN_URI) {
			Tcl_ListObjAppendElement(interp, namesPtr,

			    Tcl_NewStringObj((char*)ASN1_STRING_get0_data(uri), ASN1_STRING_length(uri)));
		    }
		}
	    } else if (distpoint->type == 1) {
		/* relativename X509NAME */
		STACK_OF(X509_NAME_ENTRY) *sk_relname = distpoint->name.relativename;
		for (int j = 0; j < sk_X509_NAME_ENTRY_num(sk_relname); j++) {
		    X509_NAME_ENTRY *e = sk_X509_NAME_ENTRY_value(sk_relname, j);
		    ASN1_STRING *d = X509_NAME_ENTRY_get_data(e);
		    Tcl_ListObjAppendElement(interp, namesPtr, Tcl_NewStringObj((char*)ASN1_STRING_data(d), ASN1_STRING_length(d)));
		}
	    }
	}
	CRL_DIST_POINTS_free(crl);
	Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("crlDistributionPoints", -1));
	Tcl_ListObjAppendElement(interp, certPtr, namesPtr);
    }



    /* Subject Directory Attributes */

    /* Basic Constraints - identifies whether the subject of the certificate is a CA and
	the maximum depth of valid certification paths that include this certificate. */

    /* Get OSCP URL */
    ocsp = X509_get1_ocsp(cert);