sslauth.c
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上传日期:2007-01-12
资源大小:3042k
文件大小:6k
- /*
- * The contents of this file are subject to the Mozilla Public
- * License Version 1.1 (the "License"); you may not use this file
- * except in compliance with the License. You may obtain a copy of
- * the License at http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS
- * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- * implied. See the License for the specific language governing
- * rights and limitations under the License.
- *
- * The Original Code is the Netscape security libraries.
- *
- * The Initial Developer of the Original Code is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1994-2000 Netscape Communications Corporation. All
- * Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL"), in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your
- * version of this file only under the terms of the GPL and not to
- * allow others to use your version of this file under the MPL,
- * indicate your decision by deleting the provisions above and
- * replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient
- * may use your version of this file under either the MPL or the
- * GPL.
- *
- * $Id: sslauth.c,v 1.2 2000/09/12 20:15:42 jgmyers%netscape.com Exp $
- */
- #include "cert.h"
- #include "secitem.h"
- #include "ssl.h"
- #include "sslimpl.h"
- #include "sslproto.h"
- #include "pk11func.h"
- /* NEED LOCKS IN HERE. */
- CERTCertificate *SSL_PeerCertificate(PRFileDesc *fd)
- {
- sslSocket *ss;
- sslSecurityInfo *sec;
- ss = ssl_FindSocket(fd);
- if (!ss) {
- SSL_DBG(("%d: SSL[%d]: bad socket in PeerCertificate",
- SSL_GETPID(), fd));
- return 0;
- }
- sec = ss->sec;
- if (ss->useSecurity && sec && sec->peerCert) {
- return CERT_DupCertificate(sec->peerCert);
- }
- return 0;
- }
- /* NEED LOCKS IN HERE. */
- int
- SSL_SecurityStatus(PRFileDesc *fd, int *op, char **cp, int *kp0, int *kp1,
- char **ip, char **sp)
- {
- sslSocket *ss;
- sslSecurityInfo *sec;
- const char *cipherName;
- PRBool isDes = PR_FALSE;
- ss = ssl_FindSocket(fd);
- if (!ss) {
- SSL_DBG(("%d: SSL[%d]: bad socket in SecurityStatus",
- SSL_GETPID(), fd));
- return SECFailure;
- }
- if (cp) *cp = 0;
- if (kp0) *kp0 = 0;
- if (kp1) *kp1 = 0;
- if (ip) *ip = 0;
- if (sp) *sp = 0;
- if (op) {
- *op = SSL_SECURITY_STATUS_OFF;
- }
- if (ss->useSecurity && ss->connected) {
- PORT_Assert(ss->sec != 0);
- sec = ss->sec;
- if (ss->version < SSL_LIBRARY_VERSION_3_0) {
- cipherName = ssl_cipherName[sec->cipherType];
- } else {
- cipherName = ssl3_cipherName[sec->cipherType];
- }
- if (cipherName && PORT_Strstr(cipherName, "DES")) isDes = PR_TRUE;
- /* do same key stuff for fortezza */
-
- if (cp) {
- *cp = PORT_Strdup(cipherName);
- }
- if (kp0) {
- *kp0 = sec->keyBits;
- if (isDes) *kp0 = (*kp0 * 7) / 8;
- }
- if (kp1) {
- *kp1 = sec->secretKeyBits;
- if (isDes) *kp1 = (*kp1 * 7) / 8;
- }
- if (op) {
- if (sec->keyBits == 0) {
- *op = SSL_SECURITY_STATUS_OFF;
- } else if (sec->secretKeyBits < 90) {
- *op = SSL_SECURITY_STATUS_ON_LOW;
- } else {
- *op = SSL_SECURITY_STATUS_ON_HIGH;
- }
- }
- if (ip || sp) {
- CERTCertificate *cert;
- cert = sec->peerCert;
- if (cert) {
- if (ip) {
- *ip = CERT_NameToAscii(&cert->issuer);
- }
- if (sp) {
- *sp = CERT_NameToAscii(&cert->subject);
- }
- } else {
- if (ip) {
- *ip = PORT_Strdup("no certificate");
- }
- if (sp) {
- *sp = PORT_Strdup("no certificate");
- }
- }
- }
- }
- return 0;
- }
- /************************************************************************/
- /* NEED LOCKS IN HERE. */
- int
- SSL_AuthCertificateHook(PRFileDesc *s, SSLAuthCertificate func, void *arg)
- {
- sslSocket *ss;
- int rv;
- ss = ssl_FindSocket(s);
- if (!ss) {
- SSL_DBG(("%d: SSL[%d]: bad socket in AuthCertificateHook",
- SSL_GETPID(), s));
- return SECFailure;
- }
- if ((rv = ssl_CreateSecurityInfo(ss)) != 0) {
- return(rv);
- }
- ss->authCertificate = func;
- ss->authCertificateArg = arg;
- return(0);
- }
- /* NEED LOCKS IN HERE. */
- int
- SSL_GetClientAuthDataHook(PRFileDesc *s, SSLGetClientAuthData func,
- void *arg)
- {
- sslSocket *ss;
- int rv;
- ss = ssl_FindSocket(s);
- if (!ss) {
- SSL_DBG(("%d: SSL[%d]: bad socket in GetClientAuthDataHook",
- SSL_GETPID(), s));
- return SECFailure;
- }
- if ((rv = ssl_CreateSecurityInfo(ss)) != 0) {
- return rv;
- }
- ss->getClientAuthData = func;
- ss->getClientAuthDataArg = arg;
- return 0;
- }
- /* NEED LOCKS IN HERE. */
- int
- SSL_SetPKCS11PinArg(PRFileDesc *s, void *arg)
- {
- sslSocket *ss;
- int rv;
- ss = ssl_FindSocket(s);
- if (!ss) {
- SSL_DBG(("%d: SSL[%d]: bad socket in GetClientAuthDataHook",
- SSL_GETPID(), s));
- return SECFailure;
- }
- if ((rv = ssl_CreateSecurityInfo(ss)) != 0) {
- return rv;
- }
- ss->pkcs11PinArg = arg;
- return 0;
- }
- /* This is the "default" authCert callback function. It is called when a
- * certificate message is received from the peer and the local application
- * has not registered an authCert callback function.
- */
- int
- SSL_AuthCertificate(void *arg, PRFileDesc *fd, PRBool checkSig, PRBool isServer)
- {
- SECStatus rv;
- CERTCertDBHandle * handle;
- sslSocket * ss;
- SECCertUsage certUsage;
- const char * hostname = NULL;
-
- ss = ssl_FindSocket(fd);
- PORT_Assert(ss != NULL);
- handle = (CERTCertDBHandle *)arg;
- /* this may seem backwards, but isn't. */
- certUsage = isServer ? certUsageSSLClient : certUsageSSLServer;
- rv = CERT_VerifyCertNow(handle, ss->sec->peerCert, checkSig, certUsage,
- ss->pkcs11PinArg);
- if ( rv != SECSuccess || isServer )
- return rv;
-
- /* cert is OK. This is the client side of an SSL connection.
- * Now check the name field in the cert against the desired hostname.
- * NB: This is our only defense against Man-In-The-Middle (MITM) attacks!
- */
- hostname = ss->url;
- if (hostname && hostname[0])
- rv = CERT_VerifyCertName(ss->sec->peerCert, hostname);
- else
- rv = SECFailure;
- if (rv != SECSuccess)
- PORT_SetError(SSL_ERROR_BAD_CERT_DOMAIN);
- return rv;
- }