+++ /dev/null
-/*
- * Copyright (c) 1999-2001,2005-2007,2010-2012 Apple Inc. All Rights Reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
- * The 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.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
-
-/*
- * sslChangeCipher.c - support for change cipher spec messages
- */
-
-#include "sslContext.h"
-#include "sslHandshake.h"
-#include "sslMemory.h"
-#include "sslAlertMessage.h"
-#include "sslDebug.h"
-#include "sslCipherSpecs.h"
-
-#include <assert.h>
-#include <string.h>
-
-OSStatus
-SSLEncodeChangeCipherSpec(SSLRecord *rec, SSLContext *ctx)
-{ OSStatus err;
-
- assert(ctx->writePending_ready);
-
- sslLogNegotiateDebug("===Sending changeCipherSpec msg");
- rec->contentType = SSL_RecordTypeChangeCipher;
- assert(ctx->negProtocolVersion >= SSL_Version_3_0);
- rec->protocolVersion = ctx->negProtocolVersion;
- rec->contents.length = 1;
- if ((err = SSLAllocBuffer(&rec->contents, 1)))
- return err;
- rec->contents.data[0] = 1;
-
- ctx->messageQueueContainsChangeCipherSpec=true;
-
- return errSecSuccess;
-}
-
-OSStatus
-SSLProcessChangeCipherSpec(SSLRecord rec, SSLContext *ctx)
-{ OSStatus err;
-
- if (rec.contents.length != 1 || rec.contents.data[0] != 1)
- {
- if(ctx->isDTLS)
- return errSSLWouldBlock;
-
- SSLFatalSessionAlert(SSL_AlertUnexpectedMsg, ctx);
- sslErrorLog("***bad changeCipherSpec msg: length %d data 0x%x\n",
- (unsigned)rec.contents.length, (unsigned)rec.contents.data[0]);
- return errSSLProtocol;
- }
-
- /*
- * Handle PAC-style session resumption, client side only.
- * In that case, the handshake state was left in either KeyExchange or
- * Cert.
- */
- if((ctx->protocolSide == kSSLClientSide) &&
- (ctx->sessionTicket.length != 0) &&
- ((ctx->state == SSL_HdskStateKeyExchange) || (ctx->state == SSL_HdskStateCert)) &&
- (ctx->masterSecretCallback != NULL)) {
- size_t secretLen = SSL_MASTER_SECRET_SIZE;
- sslEapDebug("Client side resuming based on masterSecretCallback");
- ctx->masterSecretCallback(ctx, ctx->masterSecretArg,
- ctx->masterSecret, &secretLen);
- ctx->sessionMatch = 1;
-
- /* set up selectedCipherSpec */
- if ((err = FindCipherSpec(ctx)) != 0) {
- return err;
- }
- if((err = SSLInitPendingCiphers(ctx)) != 0) {
- SSLFatalSessionAlert(SSL_AlertInternalError, ctx);
- return err;
- }
- SSLChangeHdskState(ctx, SSL_HdskStateChangeCipherSpec);
- }
-
- if (!ctx->readPending_ready || ctx->state != SSL_HdskStateChangeCipherSpec)
- {
- if(ctx->isDTLS)
- return errSSLWouldBlock;
-
- SSLFatalSessionAlert(SSL_AlertUnexpectedMsg, ctx);
- sslErrorLog("***bad changeCipherSpec msg: readPending.ready %d state %d\n",
- (unsigned)ctx->readPending_ready, (unsigned)ctx->state);
- return errSSLProtocol;
- }
-
- sslLogNegotiateDebug("===Processing changeCipherSpec msg");
-
- /* Install new cipher spec on read side */
- if ((err = ctx->recFuncs->advanceReadCipher(ctx->recCtx)) != 0)
- { SSLFatalSessionAlert(SSL_AlertInternalError, ctx);
- return err;
- }
- ctx->readCipher_ready = 0; /* Can't send data until Finished is sent */
- SSLChangeHdskState(ctx, SSL_HdskStateFinished);
- return errSecSuccess;
-}
-