--- /dev/null
+/*
+ * Copyright (c) 2013-2014 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@
+ */
+
+
+#include <stdio.h>
+#include "tlsCallbacks.h"
+#include "sslContext.h"
+#include "sslCrypto.h"
+#include "sslDebug.h"
+#include "appleSession.h"
+#include <Security/SecCertificate.h>
+#include <Security/SecCertificatePriv.h>
+#include "utilities/SecCFRelease.h"
+
+
+static
+int tls_handshake_write_callback(tls_handshake_ctx_t ctx, const SSLBuffer data, uint8_t content_type)
+{
+ SSLContext *myCtx = (SSLContext *)ctx;
+ sslDebugLog("%p (rec.len=%zd, ct=%d, d[0]=%d)\n", myCtx, data.length, content_type, data.data[0]);
+
+ SSLRecord rec;
+
+ rec.contents=data;
+ rec.contentType=content_type;
+
+ return myCtx->recFuncs->write(myCtx->recCtx,rec);
+}
+
+
+static int
+tls_handshake_message_callback(tls_handshake_ctx_t ctx, tls_handshake_message_t event)
+{
+ SSLContext *myCtx = (SSLContext *)ctx;
+ const tls_buffer *npn_data;
+
+ sslDebugLog("%p, message = %d\n", ctx, event);
+
+ switch(event) {
+ case tls_handshake_message_certificate_request:
+ assert(myCtx->protocolSide == kSSLClientSide);
+ // Need to call this here, in case SetCertificate was already called.
+ myCtx->clientCertState = kSSLClientCertRequested;
+ myCtx->clientAuthTypes = tls_handshake_get_peer_acceptable_client_auth_type(myCtx->hdsk, &myCtx->numAuthTypes);
+ SSLUpdateNegotiatedClientAuthType(myCtx);
+ if (myCtx->breakOnCertRequest && (myCtx->localCert==NULL))
+ {
+ myCtx->signalCertRequest = true;
+ return errSSLClientCertRequested;
+ }
+ break;
+ case tls_handshake_message_client_hello:
+ myCtx->peerSigAlgs = tls_handshake_get_peer_signature_algorithms(myCtx->hdsk, &myCtx->numPeerSigAlgs);
+ break;
+ case tls_handshake_message_server_hello:
+ npn_data = tls_handshake_get_peer_npn_data(myCtx->hdsk);
+ if(npn_data)
+ myCtx->npnFunc(myCtx, myCtx->npnFuncInfo, npn_data->data, npn_data->length);
+ myCtx->peerSigAlgs = tls_handshake_get_peer_signature_algorithms(myCtx->hdsk, &myCtx->numPeerSigAlgs);
+ break;
+ case tls_handshake_message_certificate:
+ return tls_verify_peer_cert(myCtx);
+ case tls_handshake_message_NPN_encrypted_extension:
+ npn_data = tls_handshake_get_peer_npn_data(myCtx->hdsk);
+ if(npn_data)
+ myCtx->npnFunc(myCtx, myCtx->npnFuncInfo, npn_data->data, npn_data->length);
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static void
+tls_handshake_ready_callback(tls_handshake_ctx_t ctx, bool write, bool ready)
+{
+ SSLContext *myCtx = (SSLContext *)ctx;
+
+ sslDebugLog("%p %s ready=%d\n", myCtx, write?"write":"read", ready);
+
+ if(write) {
+ myCtx->writeCipher_ready=ready?1:0;
+ } else {
+ myCtx->readCipher_ready=ready?1:0;
+ if(ready) {
+ SSLChangeHdskState(myCtx, SSL_HdskStateReady);
+ } else {
+ SSLChangeHdskState(myCtx, SSL_HdskStatePending);
+ }
+ }
+}
+
+static int
+tls_handshake_set_retransmit_timer_callback(tls_handshake_ctx_t ctx, int attempt)
+{
+ SSLContext *myCtx = (SSLContext *)ctx;
+
+ sslDebugLog("%p attempt=%d\n", ctx, attempt);
+
+ if(attempt) {
+ myCtx->timeout_deadline = CFAbsoluteTimeGetCurrent()+((1<<(attempt-1))*myCtx->timeout_duration);
+ } else {
+ myCtx->timeout_deadline = 0; // cancel the timeout
+ }
+ return 0;
+}
+
+static int
+tls_handshake_init_pending_cipher_callback(tls_handshake_ctx_t ctx,
+ uint16_t selectedCipher,
+ bool server,
+ SSLBuffer key)
+{
+ sslDebugLog("%p, cipher=%04x, server=%d\n", ctx, selectedCipher, server);
+ SSLContext *myCtx = (SSLContext *)ctx;
+ return myCtx->recFuncs->initPendingCiphers(myCtx->recCtx, selectedCipher, server, key);
+}
+
+static int
+tls_handshake_advance_write_callback(tls_handshake_ctx_t ctx)
+{
+ SSLContext *myCtx = (SSLContext *)ctx;
+ sslDebugLog("%p\n", myCtx);
+ //FIXME: need to filter on cipher too - require missing coretls ciphersuite header */
+ bool split = (myCtx->oneByteRecordEnable && (myCtx->negProtocolVersion<=TLS_Version_1_0));
+ myCtx->recFuncs->setOption(myCtx->recCtx, kSSLRecordOptionSendOneByteRecord, split);
+ return myCtx->recFuncs->advanceWriteCipher(myCtx->recCtx);
+}
+
+static
+int tls_handshake_rollback_write_callback(tls_handshake_ctx_t ctx)
+{
+ SSLContext *myCtx = (SSLContext *)ctx;
+ sslDebugLog("%p\n", myCtx);
+ return myCtx->recFuncs->rollbackWriteCipher(myCtx->recCtx);
+}
+
+static
+int tls_handshake_advance_read_cipher_callback(tls_handshake_ctx_t ctx)
+{
+ SSLContext *myCtx = (SSLContext *)ctx;
+ sslDebugLog("%p\n", myCtx);
+ return myCtx->recFuncs->advanceReadCipher(myCtx->recCtx);
+}
+
+static
+int tls_handshake_set_protocol_version_callback(tls_handshake_ctx_t ctx,
+ tls_protocol_version protocolVersion)
+{
+ SSLContext *myCtx = (SSLContext *)ctx;
+ //printf("%s: %p, pv=%04x\n", __FUNCTION__, ctx, protocolVersion);
+ myCtx->negProtocolVersion = protocolVersion;
+ return myCtx->recFuncs->setProtocolVersion(myCtx->recCtx, protocolVersion);
+}
+
+static int
+tls_handshake_save_session_data_callback(tls_handshake_ctx_t ctx, SSLBuffer sessionKey, SSLBuffer sessionData)
+{
+ sslDebugLog("%s: %p, key len=%zd, k[0]=%02x, data len=%zd\n", __FUNCTION__, (SSLContext *)ctx, sessionKey.length, sessionKey.data[0], sessionData.length);
+ return sslAddSession(sessionKey, sessionData, 0);
+}
+
+static int
+tls_handshake_load_session_data_callback(tls_handshake_ctx_t ctx, SSLBuffer sessionKey, SSLBuffer *sessionData)
+{
+ SSLContext *myCtx = (SSLContext *)ctx;
+ int err;
+
+ SSLFreeBuffer(&myCtx->resumableSession);
+ err = sslCopySession(sessionKey, &myCtx->resumableSession);
+
+ sslDebugLog("%p, key len=%zd, data len=%zd, err=%d\n", ctx, sessionKey.length, sessionData->length, err);
+
+ *sessionData = myCtx->resumableSession;
+
+ return err;
+}
+
+static int
+tls_handshake_delete_session_data_callback(tls_handshake_ctx_t ctx, SSLBuffer sessionKey)
+{
+ sslDebugLog("%p, key len=%zd k[0]=%02x\n", ctx, sessionKey.length, sessionKey.data[0]);
+ return sslDeleteSession(sessionKey);
+}
+
+static int
+tls_handshake_delete_all_sessions_callback(tls_handshake_ctx_t ctx)
+{
+ sslDebugLog("%p\n", ctx);
+
+ return sslCleanupSession();
+}
+
+tls_handshake_callbacks_t tls_handshake_callbacks = {
+ .write = tls_handshake_write_callback,
+ .message = tls_handshake_message_callback,
+ .ready = tls_handshake_ready_callback,
+ .set_retransmit_timer = tls_handshake_set_retransmit_timer_callback,
+ .save_session_data = tls_handshake_save_session_data_callback,
+ .load_session_data = tls_handshake_load_session_data_callback,
+ .delete_session_data = tls_handshake_delete_session_data_callback,
+ .delete_all_sessions = tls_handshake_delete_all_sessions_callback,
+ .init_pending_cipher = tls_handshake_init_pending_cipher_callback,
+ .advance_write_cipher = tls_handshake_advance_write_callback,
+ .rollback_write_cipher = tls_handshake_rollback_write_callback,
+ .advance_read_cipher = tls_handshake_advance_read_cipher_callback,
+ .set_protocol_version = tls_handshake_set_protocol_version_callback,
+};
+
+
projects / apple / security.git / blobdiff