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270 lines
6.6 KiB
C
270 lines
6.6 KiB
C
/*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is the Netscape security libraries.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1994-2000 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the
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* terms of the GNU General Public License Version 2 or later (the
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* "GPL"), in which case the provisions of the GPL are applicable
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* instead of those above. If you wish to allow use of your
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* version of this file only under the terms of the GPL and not to
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* allow others to use your version of this file under the MPL,
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* indicate your decision by deleting the provisions above and
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* replace them with the notice and other provisions required by
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* the GPL. If you do not delete the provisions above, a recipient
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* may use your version of this file under either the MPL or the
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* GPL.
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*
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* $Id: sslauth.c,v 1.9 2002/09/06 00:27:52 wtc%netscape.com Exp $
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*/
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#include "cert.h"
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#include "secitem.h"
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#include "ssl.h"
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#include "sslimpl.h"
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#include "sslproto.h"
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#include "pk11func.h"
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/* NEED LOCKS IN HERE. */
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CERTCertificate *
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SSL_PeerCertificate(PRFileDesc *fd)
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{
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sslSocket *ss;
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ss = ssl_FindSocket(fd);
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if (!ss) {
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SSL_DBG(("%d: SSL[%d]: bad socket in PeerCertificate",
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SSL_GETPID(), fd));
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return 0;
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}
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if (ss->useSecurity && ss->sec.peerCert) {
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return CERT_DupCertificate(ss->sec.peerCert);
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}
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return 0;
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}
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/* NEED LOCKS IN HERE. */
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CERTCertificate *
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SSL_LocalCertificate(PRFileDesc *fd)
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{
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sslSocket *ss;
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ss = ssl_FindSocket(fd);
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if (!ss) {
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SSL_DBG(("%d: SSL[%d]: bad socket in PeerCertificate",
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SSL_GETPID(), fd));
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return NULL;
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}
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if (ss->useSecurity) {
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if (ss->sec.localCert) {
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return CERT_DupCertificate(ss->sec.localCert);
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}
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if (ss->sec.ci.sid && ss->sec.ci.sid->localCert) {
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return CERT_DupCertificate(ss->sec.ci.sid->localCert);
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}
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}
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return NULL;
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}
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/* NEED LOCKS IN HERE. */
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SECStatus
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SSL_SecurityStatus(PRFileDesc *fd, int *op, char **cp, int *kp0, int *kp1,
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char **ip, char **sp)
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{
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sslSocket *ss;
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const char *cipherName;
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PRBool isDes = PR_FALSE;
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ss = ssl_FindSocket(fd);
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if (!ss) {
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SSL_DBG(("%d: SSL[%d]: bad socket in SecurityStatus",
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SSL_GETPID(), fd));
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return SECFailure;
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}
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if (cp) *cp = 0;
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if (kp0) *kp0 = 0;
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if (kp1) *kp1 = 0;
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if (ip) *ip = 0;
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if (sp) *sp = 0;
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if (op) {
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*op = SSL_SECURITY_STATUS_OFF;
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}
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if (ss->useSecurity && ss->firstHsDone) {
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if (ss->version < SSL_LIBRARY_VERSION_3_0) {
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cipherName = ssl_cipherName[ss->sec.cipherType];
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} else {
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cipherName = ssl3_cipherName[ss->sec.cipherType];
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}
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if (cipherName && PORT_Strstr(cipherName, "DES")) isDes = PR_TRUE;
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/* do same key stuff for fortezza */
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if (cp) {
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*cp = PORT_Strdup(cipherName);
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}
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if (kp0) {
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*kp0 = ss->sec.keyBits;
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if (isDes) *kp0 = (*kp0 * 7) / 8;
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}
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if (kp1) {
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*kp1 = ss->sec.secretKeyBits;
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if (isDes) *kp1 = (*kp1 * 7) / 8;
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}
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if (op) {
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if (ss->sec.keyBits == 0) {
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*op = SSL_SECURITY_STATUS_OFF;
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} else if (ss->sec.secretKeyBits < 90) {
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*op = SSL_SECURITY_STATUS_ON_LOW;
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} else {
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*op = SSL_SECURITY_STATUS_ON_HIGH;
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}
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}
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if (ip || sp) {
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CERTCertificate *cert;
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cert = ss->sec.peerCert;
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if (cert) {
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if (ip) {
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*ip = CERT_NameToAscii(&cert->issuer);
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}
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if (sp) {
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*sp = CERT_NameToAscii(&cert->subject);
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}
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} else {
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if (ip) {
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*ip = PORT_Strdup("no certificate");
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}
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if (sp) {
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*sp = PORT_Strdup("no certificate");
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}
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}
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}
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}
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return SECSuccess;
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}
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/************************************************************************/
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/* NEED LOCKS IN HERE. */
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SECStatus
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SSL_AuthCertificateHook(PRFileDesc *s, SSLAuthCertificate func, void *arg)
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{
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sslSocket *ss;
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ss = ssl_FindSocket(s);
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if (!ss) {
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SSL_DBG(("%d: SSL[%d]: bad socket in AuthCertificateHook",
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SSL_GETPID(), s));
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return SECFailure;
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}
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ss->authCertificate = func;
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ss->authCertificateArg = arg;
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return SECSuccess;
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}
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/* NEED LOCKS IN HERE. */
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SECStatus
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SSL_GetClientAuthDataHook(PRFileDesc *s, SSLGetClientAuthData func,
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void *arg)
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{
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sslSocket *ss;
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ss = ssl_FindSocket(s);
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if (!ss) {
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SSL_DBG(("%d: SSL[%d]: bad socket in GetClientAuthDataHook",
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SSL_GETPID(), s));
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return SECFailure;
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}
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ss->getClientAuthData = func;
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ss->getClientAuthDataArg = arg;
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return SECSuccess;
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}
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/* NEED LOCKS IN HERE. */
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SECStatus
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SSL_SetPKCS11PinArg(PRFileDesc *s, void *arg)
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{
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sslSocket *ss;
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ss = ssl_FindSocket(s);
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if (!ss) {
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SSL_DBG(("%d: SSL[%d]: bad socket in GetClientAuthDataHook",
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SSL_GETPID(), s));
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return SECFailure;
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}
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ss->pkcs11PinArg = arg;
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return SECSuccess;
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}
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/* This is the "default" authCert callback function. It is called when a
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* certificate message is received from the peer and the local application
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* has not registered an authCert callback function.
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*/
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SECStatus
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SSL_AuthCertificate(void *arg, PRFileDesc *fd, PRBool checkSig, PRBool isServer)
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{
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SECStatus rv;
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CERTCertDBHandle * handle;
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sslSocket * ss;
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SECCertUsage certUsage;
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const char * hostname = NULL;
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ss = ssl_FindSocket(fd);
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PORT_Assert(ss != NULL);
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if (!ss) {
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return SECFailure;
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}
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handle = (CERTCertDBHandle *)arg;
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/* this may seem backwards, but isn't. */
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certUsage = isServer ? certUsageSSLClient : certUsageSSLServer;
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rv = CERT_VerifyCertNow(handle, ss->sec.peerCert, checkSig, certUsage,
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ss->pkcs11PinArg);
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if ( rv != SECSuccess || isServer )
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return rv;
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/* cert is OK. This is the client side of an SSL connection.
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* Now check the name field in the cert against the desired hostname.
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* NB: This is our only defense against Man-In-The-Middle (MITM) attacks!
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*/
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hostname = ss->url;
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if (hostname && hostname[0])
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rv = CERT_VerifyCertName(ss->sec.peerCert, hostname);
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else
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rv = SECFailure;
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if (rv != SECSuccess)
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PORT_SetError(SSL_ERROR_BAD_CERT_DOMAIN);
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return rv;
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}
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