diff -r 000000000000 -r 6474c204b198 security/nss/lib/ssl/sslauth.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/security/nss/lib/ssl/sslauth.c Wed Dec 31 06:09:35 2014 +0100 @@ -0,0 +1,294 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ +#include "cert.h" +#include "secitem.h" +#include "ssl.h" +#include "sslimpl.h" +#include "sslproto.h" +#include "pk11func.h" +#include "ocsp.h" + +/* NEED LOCKS IN HERE. */ +CERTCertificate * +SSL_PeerCertificate(PRFileDesc *fd) +{ + sslSocket *ss; + + ss = ssl_FindSocket(fd); + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in PeerCertificate", + SSL_GETPID(), fd)); + return 0; + } + if (ss->opt.useSecurity && ss->sec.peerCert) { + return CERT_DupCertificate(ss->sec.peerCert); + } + return 0; +} + +/* NEED LOCKS IN HERE. */ +CERTCertList * +SSL_PeerCertificateChain(PRFileDesc *fd) +{ + sslSocket *ss; + CERTCertList *chain = NULL; + CERTCertificate *cert; + ssl3CertNode *cur; + + ss = ssl_FindSocket(fd); + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in PeerCertificateChain", + SSL_GETPID(), fd)); + return NULL; + } + if (!ss->opt.useSecurity || !ss->sec.peerCert) { + PORT_SetError(SSL_ERROR_NO_CERTIFICATE); + return NULL; + } + chain = CERT_NewCertList(); + if (!chain) { + return NULL; + } + cert = CERT_DupCertificate(ss->sec.peerCert); + if (CERT_AddCertToListTail(chain, cert) != SECSuccess) { + goto loser; + } + for (cur = ss->ssl3.peerCertChain; cur; cur = cur->next) { + cert = CERT_DupCertificate(cur->cert); + if (CERT_AddCertToListTail(chain, cert) != SECSuccess) { + goto loser; + } + } + return chain; + +loser: + CERT_DestroyCertList(chain); + return NULL; +} + +/* NEED LOCKS IN HERE. */ +CERTCertificate * +SSL_LocalCertificate(PRFileDesc *fd) +{ + sslSocket *ss; + + ss = ssl_FindSocket(fd); + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in PeerCertificate", + SSL_GETPID(), fd)); + return NULL; + } + if (ss->opt.useSecurity) { + if (ss->sec.localCert) { + return CERT_DupCertificate(ss->sec.localCert); + } + if (ss->sec.ci.sid && ss->sec.ci.sid->localCert) { + return CERT_DupCertificate(ss->sec.ci.sid->localCert); + } + } + return NULL; +} + + + +/* NEED LOCKS IN HERE. */ +SECStatus +SSL_SecurityStatus(PRFileDesc *fd, int *op, char **cp, int *kp0, int *kp1, + char **ip, char **sp) +{ + sslSocket *ss; + 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->opt.useSecurity && ss->enoughFirstHsDone) { + if (ss->version < SSL_LIBRARY_VERSION_3_0) { + cipherName = ssl_cipherName[ss->sec.cipherType]; + } else { + cipherName = ssl3_cipherName[ss->sec.cipherType]; + } + PORT_Assert(cipherName); + if (cipherName) { + if (PORT_Strstr(cipherName, "DES")) isDes = PR_TRUE; + + if (cp) { + *cp = PORT_Strdup(cipherName); + } + } + + if (kp0) { + *kp0 = ss->sec.keyBits; + if (isDes) *kp0 = (*kp0 * 7) / 8; + } + if (kp1) { + *kp1 = ss->sec.secretKeyBits; + if (isDes) *kp1 = (*kp1 * 7) / 8; + } + if (op) { + if (ss->sec.keyBits == 0) { + *op = SSL_SECURITY_STATUS_OFF; + } else if (ss->sec.secretKeyBits < 90) { + *op = SSL_SECURITY_STATUS_ON_LOW; + + } else { + *op = SSL_SECURITY_STATUS_ON_HIGH; + } + } + + if (ip || sp) { + CERTCertificate *cert; + + cert = ss->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 SECSuccess; +} + +/************************************************************************/ + +/* NEED LOCKS IN HERE. */ +SECStatus +SSL_AuthCertificateHook(PRFileDesc *s, SSLAuthCertificate func, void *arg) +{ + sslSocket *ss; + + ss = ssl_FindSocket(s); + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in AuthCertificateHook", + SSL_GETPID(), s)); + return SECFailure; + } + + ss->authCertificate = func; + ss->authCertificateArg = arg; + + return SECSuccess; +} + +/* NEED LOCKS IN HERE. */ +SECStatus +SSL_GetClientAuthDataHook(PRFileDesc *s, SSLGetClientAuthData func, + void *arg) +{ + sslSocket *ss; + + ss = ssl_FindSocket(s); + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in GetClientAuthDataHook", + SSL_GETPID(), s)); + return SECFailure; + } + + ss->getClientAuthData = func; + ss->getClientAuthDataArg = arg; + return SECSuccess; +} + +/* NEED LOCKS IN HERE. */ +SECStatus +SSL_SetPKCS11PinArg(PRFileDesc *s, void *arg) +{ + sslSocket *ss; + + ss = ssl_FindSocket(s); + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in GetClientAuthDataHook", + SSL_GETPID(), s)); + return SECFailure; + } + + ss->pkcs11PinArg = arg; + return SECSuccess; +} + + +/* 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. + */ +SECStatus +SSL_AuthCertificate(void *arg, PRFileDesc *fd, PRBool checkSig, PRBool isServer) +{ + SECStatus rv; + CERTCertDBHandle * handle; + sslSocket * ss; + SECCertUsage certUsage; + const char * hostname = NULL; + PRTime now = PR_Now(); + SECItemArray * certStatusArray; + + ss = ssl_FindSocket(fd); + PORT_Assert(ss != NULL); + if (!ss) { + return SECFailure; + } + + handle = (CERTCertDBHandle *)arg; + certStatusArray = &ss->sec.ci.sid->peerCertStatus; + + if (certStatusArray->len) { + PORT_SetError(0); + if (CERT_CacheOCSPResponseFromSideChannel(handle, ss->sec.peerCert, now, + &certStatusArray->items[0], + ss->pkcs11PinArg) + != SECSuccess) { + PRErrorCode error = PR_GetError(); + PORT_Assert(error != 0); + } + } + + /* this may seem backwards, but isn't. */ + certUsage = isServer ? certUsageSSLClient : certUsageSSLServer; + + rv = CERT_VerifyCert(handle, ss->sec.peerCert, checkSig, certUsage, + now, ss->pkcs11PinArg, NULL); + + 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; +}