X-Git-Url: https://git.saurik.com/apple/security.git/blobdiff_plain/ed6778a32ecff23bc2dfb6ca452badd0c68774a0..563f4f96f568bcdc0a04a82f89cafe3bebbe43f1:/SecureTransport/sslSession.cpp diff --git a/SecureTransport/sslSession.cpp b/SecureTransport/sslSession.cpp deleted file mode 100644 index f6a9e5ab..00000000 --- a/SecureTransport/sslSession.cpp +++ /dev/null @@ -1,264 +0,0 @@ -/* - * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved. - * - * The contents of this file constitute Original Code as defined in and are - * subject to the Apple Public Source License Version 1.2 (the 'License'). - * You may not use this file except in compliance with the License. Please obtain - * a copy of the License at http://www.apple.com/publicsource and read it before - * using this file. - * - * This Original Code and all software distributed under the License are - * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS - * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT - * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR - * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the - * specific language governing rights and limitations under the License. - */ - - -#include "ssl.h" -#include "sslContext.h" -#include "sslSession.h" -#include "sslMemory.h" -#include "sslUtils.h" -#include "sslDebug.h" -#include "cipherSpecs.h" -#include "appleSession.h" - -#include -#include -#include - -typedef struct -{ int sessionIDLen; - UInt8 sessionID[32]; - SSLProtocolVersion protocolVersion; - UInt16 cipherSuite; - UInt16 padding; /* so remainder is word aligned */ - UInt8 masterSecret[48]; - int certCount; - UInt8 certs[1]; /* Actually, variable length */ -} ResumableSession; - -/* - * Cook up a (private) resumable session blob, based on the - * specified ctx, store it with ctx->peerID as the key. - * NOTE: This is contrary to the SSL v3 spec, which claims that - * servers store resumable sessions using ctx->sessionID as the key. - * I don' think this is an issue...is it? - */ -OSStatus -SSLAddSessionData(const SSLContext *ctx) -{ OSStatus err; - uint32 sessionIDLen; - SSLBuffer sessionID; - ResumableSession *session; - int certCount; - SSLCertificate *cert; - uint8 *certDest; - - /* If we don't know who the peer is, we can't store a session */ - if (ctx->peerID.data == 0) - return errSSLSessionNotFound; - - sessionIDLen = offsetof(ResumableSession, certs); - cert = ctx->peerCert; - certCount = 0; - while (cert) - { ++certCount; - sessionIDLen += 4 + cert->derCert.length; - cert = cert->next; - } - - if ((err = SSLAllocBuffer(sessionID, sessionIDLen, ctx)) != 0) - return err; - - session = (ResumableSession*)sessionID.data; - - session->sessionIDLen = ctx->sessionID.length; - memcpy(session->sessionID, ctx->sessionID.data, session->sessionIDLen); - session->protocolVersion = ctx->negProtocolVersion; - session->cipherSuite = ctx->selectedCipher; - memcpy(session->masterSecret, ctx->masterSecret, 48); - session->certCount = certCount; - session->padding = 0; - - certDest = session->certs; - cert = ctx->peerCert; - while (cert) - { certDest = SSLEncodeInt(certDest, cert->derCert.length, 4); - memcpy(certDest, cert->derCert.data, cert->derCert.length); - certDest += cert->derCert.length; - cert = cert->next; - } - - err = sslAddSession(ctx->peerID, sessionID); - SSLFreeBuffer(sessionID, ctx); - - return err; -} - -/* - * Retrieve resumable session data, from key ctx->peerID. - */ -OSStatus -SSLGetSessionData(SSLBuffer *sessionData, const SSLContext *ctx) -{ OSStatus err; - - if (ctx->peerID.data == 0) - return errSSLSessionNotFound; - - sessionData->data = 0; - - err = sslGetSession(ctx->peerID, sessionData); - if (sessionData->data == 0) - return errSSLSessionNotFound; - - return err; -} - -OSStatus -SSLDeleteSessionData(const SSLContext *ctx) -{ OSStatus err; - - if (ctx->peerID.data == 0) - return errSSLSessionNotFound; - - err = sslDeleteSession(ctx->peerID); - return err; -} - -/* - * Given a sessionData blob, obtain the associated sessionID (NOT the key...). - */ -OSStatus -SSLRetrieveSessionID( - const SSLBuffer sessionData, - SSLBuffer *identifier, - const SSLContext *ctx) -{ OSStatus err; - ResumableSession *session; - - session = (ResumableSession*) sessionData.data; - if ((err = SSLAllocBuffer(*identifier, session->sessionIDLen, ctx)) != 0) - return err; - memcpy(identifier->data, session->sessionID, session->sessionIDLen); - return noErr; -} - -/* - * Obtain the protocol version associated with a specified resumable session blob. - */ -OSStatus -SSLRetrieveSessionProtocolVersion( - const SSLBuffer sessionData, - SSLProtocolVersion *version, - const SSLContext *ctx) -{ ResumableSession *session; - - session = (ResumableSession*) sessionData.data; - *version = session->protocolVersion; - return noErr; -} - -/* - * Retrieve session state from specified sessionData blob, install into - * ctx. Presumably, ctx->sessionID and - * ctx->negProtocolVersion are already init'd (from the above two functions). - */ - -/* - * Netscape Enterprise Server is known to change cipherspecs upon session resumption. - * For example, connecting to cdnow.com with all ciphersuites enabled results in - * CipherSuite 4 (SSL_RSA_WITH_RC4_128_MD5) being selected on the first session, - * and CipherSuite 10 (SSL_RSA_WITH_3DES_EDE_CBC_SHA) being selected on subsequent - * sessions. This is contrary to the SSL3.0 spec, sesion 7.6.1.3, describing the - * Server Hello message. - * - * This anomaly does not occur if only RC4 ciphers are enabled in the Client Hello - * message. It also does not happen in SSL V2. - */ -#define ALLOW_CIPHERSPEC_CHANGE 1 - -OSStatus -SSLInstallSessionFromData(const SSLBuffer sessionData, SSLContext *ctx) -{ OSStatus err; - ResumableSession *session; - uint8 *storedCertProgress; - SSLCertificate *cert, *lastCert; - int certCount; - uint32 certLen; - - session = (ResumableSession*)sessionData.data; - - /* - * For SSLv3 and TLSv1, we know that selectedCipher has already been specified in - * SSLProcessServerHello(). An SSLv2 server hello message with a session - * ID hit contains no CipherKind field so we set it here. - */ - if(ctx->negProtocolVersion == SSL_Version_2_0) { - if(ctx->protocolSide == SSL_ClientSide) { - assert(ctx->selectedCipher == 0); - ctx->selectedCipher = session->cipherSuite; - } - else { - /* - * Else...what if they don't match? Could never happen, right? - * Wouldn't that mean the client is trying to switch ciphers on us? - */ - if(ctx->selectedCipher != session->cipherSuite) { - sslErrorLog("+++SSL2: CipherSpec change from %d to %d on session " - "resume\n", - session->cipherSuite, ctx->selectedCipher); - return errSSLProtocol; - } - } - } - else { - assert(ctx->selectedCipher != 0); - if(ctx->selectedCipher != session->cipherSuite) { - #if ALLOW_CIPHERSPEC_CHANGE - sslErrorLog("+++WARNING: CipherSpec change from %d to %d " - "on session resume\n", - session->cipherSuite, ctx->selectedCipher); - #else - sslErrorLog("+++SSL: CipherSpec change from %d to %d on session resume\n", - session->cipherSuite, ctx->selectedCipher); - return errSSLProtocol; - #endif - } - } - if ((err = FindCipherSpec(ctx)) != 0) { - return err; - } - memcpy(ctx->masterSecret, session->masterSecret, 48); - - lastCert = 0; - storedCertProgress = session->certs; - certCount = session->certCount; - - while (certCount--) - { - cert = (SSLCertificate *)sslMalloc(sizeof(SSLCertificate)); - if(cert == NULL) { - return memFullErr; - } - cert->next = 0; - certLen = SSLDecodeInt(storedCertProgress, 4); - storedCertProgress += 4; - if ((err = SSLAllocBuffer(cert->derCert, certLen, ctx)) != 0) - { - sslFree(cert); - return err; - } - memcpy(cert->derCert.data, storedCertProgress, certLen); - storedCertProgress += certLen; - if (lastCert == 0) - ctx->peerCert = cert; - else - lastCert->next = cert; - lastCert = cert; - } - - return noErr; -}