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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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;
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) {
const ssl3BulkCipherDef *bulkCipherDef;
PRBool isDes = PR_FALSE;
bulkCipherDef = ssl_GetBulkCipherDef(ss->ssl3.hs.suite_def);
if (cp) {
*cp = PORT_Strdup(bulkCipherDef->short_name);
}
if (PORT_Strstr(bulkCipherDef->short_name, "DES")) {
isDes = PR_TRUE;
}
if (kp0) {
*kp0 = bulkCipherDef->key_size * 8;
if (isDes)
*kp0 = (*kp0 * 7) / 8;
}
if (kp1) {
*kp1 = bulkCipherDef->secret_key_size * 8;
if (isDes)
*kp1 = (*kp1 * 7) / 8;
}
if (op) {
if (bulkCipherDef->key_size == 0) {
*op = SSL_SECURITY_STATUS_OFF;
} else if (bulkCipherDef->secret_key_size * 8 < 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;
SECItemArray *certStatusArray;
ss = ssl_FindSocket(fd);
PORT_Assert(ss != NULL);
if (!ss) {
return SECFailure;
}
handle = (CERTCertDBHandle *)arg;
certStatusArray = &ss->sec.ci.sid->peerCertStatus;
PRTime now = ssl_Time(ss);
if (certStatusArray->len) {
PORT_SetError(0);
if (CERT_CacheOCSPResponseFromSideChannel(handle, ss->sec.peerCert, now,
&certStatusArray->items[0],
ss->pkcs11PinArg) !=
SECSuccess) {
PORT_Assert(PR_GetError() != 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;
}