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+/***************************************************************************
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 2012 - 2017, Nick Zitzmann, <nickzman@gmail.com>.
+ * Copyright (C) 2012 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at https://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+
+/*
+ * Source file for all iOS and macOS SecureTransport-specific code for the
+ * TLS/SSL layer. No code but vtls.c should ever call or use these functions.
+ */
+
+#include "curl_setup.h"
+
+#include "urldata.h" /* for the Curl_easy definition */
+#include "curl_base64.h"
+#include "strtok.h"
+
+#ifdef USE_SECTRANSP
+
+#ifdef __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wtautological-pointer-compare"
+#endif /* __clang__ */
+
+#include <limits.h>
+
+#include <Security/Security.h>
+/* For some reason, when building for iOS, the omnibus header above does
+ * not include SecureTransport.h as of iOS SDK 5.1. */
+#include <Security/SecureTransport.h>
+#include <CoreFoundation/CoreFoundation.h>
+#include <CommonCrypto/CommonDigest.h>
+
+/* The Security framework has changed greatly between iOS and different macOS
+ versions, and we will try to support as many of them as we can (back to
+ Leopard and iOS 5) by using macros and weak-linking.
+
+ In general, you want to build this using the most recent OS SDK, since some
+ features require curl to be built against the latest SDK. TLS 1.1 and 1.2
+ support, for instance, require the macOS 10.8 SDK or later. TLS 1.3
+ requires the macOS 10.13 or iOS 11 SDK or later. */
+#if (TARGET_OS_MAC && !(TARGET_OS_EMBEDDED || TARGET_OS_IPHONE))
+
+#if MAC_OS_X_VERSION_MAX_ALLOWED < 1050
+#error "The Secure Transport back-end requires Leopard or later."
+#endif /* MAC_OS_X_VERSION_MAX_ALLOWED < 1050 */
+
+#define CURL_BUILD_IOS 0
+#define CURL_BUILD_IOS_7 0
+#define CURL_BUILD_IOS_9 0
+#define CURL_BUILD_IOS_11 0
+#define CURL_BUILD_MAC 1
+/* This is the maximum API level we are allowed to use when building: */
+#define CURL_BUILD_MAC_10_5 MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
+#define CURL_BUILD_MAC_10_6 MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
+#define CURL_BUILD_MAC_10_7 MAC_OS_X_VERSION_MAX_ALLOWED >= 1070
+#define CURL_BUILD_MAC_10_8 MAC_OS_X_VERSION_MAX_ALLOWED >= 1080
+#define CURL_BUILD_MAC_10_9 MAC_OS_X_VERSION_MAX_ALLOWED >= 1090
+#define CURL_BUILD_MAC_10_11 MAC_OS_X_VERSION_MAX_ALLOWED >= 101100
+#define CURL_BUILD_MAC_10_13 MAC_OS_X_VERSION_MAX_ALLOWED >= 101300
+/* These macros mean "the following code is present to allow runtime backward
+ compatibility with at least this cat or earlier":
+ (You set this at build-time using the compiler command line option
+ "-mmacos-version-min.") */
+#define CURL_SUPPORT_MAC_10_5 MAC_OS_X_VERSION_MIN_REQUIRED <= 1050
+#define CURL_SUPPORT_MAC_10_6 MAC_OS_X_VERSION_MIN_REQUIRED <= 1060
+#define CURL_SUPPORT_MAC_10_7 MAC_OS_X_VERSION_MIN_REQUIRED <= 1070
+#define CURL_SUPPORT_MAC_10_8 MAC_OS_X_VERSION_MIN_REQUIRED <= 1080
+#define CURL_SUPPORT_MAC_10_9 MAC_OS_X_VERSION_MIN_REQUIRED <= 1090
+
+#elif TARGET_OS_EMBEDDED || TARGET_OS_IPHONE
+#define CURL_BUILD_IOS 1
+#define CURL_BUILD_IOS_7 __IPHONE_OS_VERSION_MAX_ALLOWED >= 70000
+#define CURL_BUILD_IOS_9 __IPHONE_OS_VERSION_MAX_ALLOWED >= 90000
+#define CURL_BUILD_IOS_11 __IPHONE_OS_VERSION_MAX_ALLOWED >= 110000
+#define CURL_BUILD_MAC 0
+#define CURL_BUILD_MAC_10_5 0
+#define CURL_BUILD_MAC_10_6 0
+#define CURL_BUILD_MAC_10_7 0
+#define CURL_BUILD_MAC_10_8 0
+#define CURL_BUILD_MAC_10_9 0
+#define CURL_BUILD_MAC_10_11 0
+#define CURL_BUILD_MAC_10_13 0
+#define CURL_SUPPORT_MAC_10_5 0
+#define CURL_SUPPORT_MAC_10_6 0
+#define CURL_SUPPORT_MAC_10_7 0
+#define CURL_SUPPORT_MAC_10_8 0
+#define CURL_SUPPORT_MAC_10_9 0
+
+#else
+#error "The Secure Transport back-end requires iOS or macOS."
+#endif /* (TARGET_OS_MAC && !(TARGET_OS_EMBEDDED || TARGET_OS_IPHONE)) */
+
+#if CURL_BUILD_MAC
+#include <sys/sysctl.h>
+#endif /* CURL_BUILD_MAC */
+
+#include "urldata.h"
+#include "sendf.h"
+#include "inet_pton.h"
+#include "connect.h"
+#include "select.h"
+#include "vtls.h"
+#include "sectransp.h"
+#include "curl_printf.h"
+#include "strdup.h"
+
+#include "curl_memory.h"
+/* The last #include file should be: */
+#include "memdebug.h"
+
+/* From MacTypes.h (which we can't include because it isn't present in iOS: */
+#define ioErr -36
+#define paramErr -50
+
+struct ssl_backend_data {
+ SSLContextRef ssl_ctx;
+ curl_socket_t ssl_sockfd;
+ bool ssl_direction; /* true if writing, false if reading */
+ size_t ssl_write_buffered_length;
+};
+
+#define BACKEND connssl->backend
+
+/* pinned public key support tests */
+
+/* version 1 supports macOS 10.12+ and iOS 10+ */
+#if ((TARGET_OS_IPHONE && __IPHONE_OS_VERSION_MIN_REQUIRED >= 100000) || \
+ (!TARGET_OS_IPHONE && __MAC_OS_X_VERSION_MIN_REQUIRED >= 101200))
+#define SECTRANSP_PINNEDPUBKEY_V1 1
+#endif
+
+/* version 2 supports MacOSX 10.7+ */
+#if (!TARGET_OS_IPHONE && __MAC_OS_X_VERSION_MIN_REQUIRED >= 1070)
+#define SECTRANSP_PINNEDPUBKEY_V2 1
+#endif
+
+#if defined(SECTRANSP_PINNEDPUBKEY_V1) || defined(SECTRANSP_PINNEDPUBKEY_V2)
+/* this backend supports CURLOPT_PINNEDPUBLICKEY */
+#define SECTRANSP_PINNEDPUBKEY 1
+#endif /* SECTRANSP_PINNEDPUBKEY */
+
+#ifdef SECTRANSP_PINNEDPUBKEY
+/* both new and old APIs return rsa keys missing the spki header (not DER) */
+static const unsigned char rsa4096SpkiHeader[] = {
+ 0x30, 0x82, 0x02, 0x22, 0x30, 0x0d,
+ 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86,
+ 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05,
+ 0x00, 0x03, 0x82, 0x02, 0x0f, 0x00};
+
+static const unsigned char rsa2048SpkiHeader[] = {
+ 0x30, 0x82, 0x01, 0x22, 0x30, 0x0d,
+ 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86,
+ 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05,
+ 0x00, 0x03, 0x82, 0x01, 0x0f, 0x00};
+#ifdef SECTRANSP_PINNEDPUBKEY_V1
+/* the *new* version doesn't return DER encoded ecdsa certs like the old... */
+static const unsigned char ecDsaSecp256r1SpkiHeader[] = {
+ 0x30, 0x59, 0x30, 0x13, 0x06, 0x07,
+ 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02,
+ 0x01, 0x06, 0x08, 0x2a, 0x86, 0x48,
+ 0xce, 0x3d, 0x03, 0x01, 0x07, 0x03,
+ 0x42, 0x00};
+
+static const unsigned char ecDsaSecp384r1SpkiHeader[] = {
+ 0x30, 0x76, 0x30, 0x10, 0x06, 0x07,
+ 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02,
+ 0x01, 0x06, 0x05, 0x2b, 0x81, 0x04,
+ 0x00, 0x22, 0x03, 0x62, 0x00};
+#endif /* SECTRANSP_PINNEDPUBKEY_V1 */
+#endif /* SECTRANSP_PINNEDPUBKEY */
+
+/* The following two functions were ripped from Apple sample code,
+ * with some modifications: */
+static OSStatus SocketRead(SSLConnectionRef connection,
+ void *data, /* owned by
+ * caller, data
+ * RETURNED */
+ size_t *dataLength) /* IN/OUT */
+{
+ size_t bytesToGo = *dataLength;
+ size_t initLen = bytesToGo;
+ UInt8 *currData = (UInt8 *)data;
+ /*int sock = *(int *)connection;*/
+ struct ssl_connect_data *connssl = (struct ssl_connect_data *)connection;
+ int sock = BACKEND->ssl_sockfd;
+ OSStatus rtn = noErr;
+ size_t bytesRead;
+ ssize_t rrtn;
+ int theErr;
+
+ *dataLength = 0;
+
+ for(;;) {
+ bytesRead = 0;
+ rrtn = read(sock, currData, bytesToGo);
+ if(rrtn <= 0) {
+ /* this is guesswork... */
+ theErr = errno;
+ if(rrtn == 0) { /* EOF = server hung up */
+ /* the framework will turn this into errSSLClosedNoNotify */
+ rtn = errSSLClosedGraceful;
+ }
+ else /* do the switch */
+ switch(theErr) {
+ case ENOENT:
+ /* connection closed */
+ rtn = errSSLClosedGraceful;
+ break;
+ case ECONNRESET:
+ rtn = errSSLClosedAbort;
+ break;
+ case EAGAIN:
+ rtn = errSSLWouldBlock;
+ BACKEND->ssl_direction = false;
+ break;
+ default:
+ rtn = ioErr;
+ break;
+ }
+ break;
+ }
+ else {
+ bytesRead = rrtn;
+ }
+ bytesToGo -= bytesRead;
+ currData += bytesRead;
+
+ if(bytesToGo == 0) {
+ /* filled buffer with incoming data, done */
+ break;
+ }
+ }
+ *dataLength = initLen - bytesToGo;
+
+ return rtn;
+}
+
+static OSStatus SocketWrite(SSLConnectionRef connection,
+ const void *data,
+ size_t *dataLength) /* IN/OUT */
+{
+ size_t bytesSent = 0;
+ /*int sock = *(int *)connection;*/
+ struct ssl_connect_data *connssl = (struct ssl_connect_data *)connection;
+ int sock = BACKEND->ssl_sockfd;
+ ssize_t length;
+ size_t dataLen = *dataLength;
+ const UInt8 *dataPtr = (UInt8 *)data;
+ OSStatus ortn;
+ int theErr;
+
+ *dataLength = 0;
+
+ do {
+ length = write(sock,
+ (char *)dataPtr + bytesSent,
+ dataLen - bytesSent);
+ } while((length > 0) &&
+ ( (bytesSent += length) < dataLen) );
+
+ if(length <= 0) {
+ theErr = errno;
+ if(theErr == EAGAIN) {
+ ortn = errSSLWouldBlock;
+ BACKEND->ssl_direction = true;
+ }
+ else {
+ ortn = ioErr;
+ }
+ }
+ else {
+ ortn = noErr;
+ }
+ *dataLength = bytesSent;
+ return ortn;
+}
+
+#ifndef CURL_DISABLE_VERBOSE_STRINGS
+CF_INLINE const char *SSLCipherNameForNumber(SSLCipherSuite cipher)
+{
+ switch(cipher) {
+ /* SSL version 3.0 */
+ case SSL_RSA_WITH_NULL_MD5:
+ return "SSL_RSA_WITH_NULL_MD5";
+ break;
+ case SSL_RSA_WITH_NULL_SHA:
+ return "SSL_RSA_WITH_NULL_SHA";
+ break;
+ case SSL_RSA_EXPORT_WITH_RC4_40_MD5:
+ return "SSL_RSA_EXPORT_WITH_RC4_40_MD5";
+ break;
+ case SSL_RSA_WITH_RC4_128_MD5:
+ return "SSL_RSA_WITH_RC4_128_MD5";
+ break;
+ case SSL_RSA_WITH_RC4_128_SHA:
+ return "SSL_RSA_WITH_RC4_128_SHA";
+ break;
+ case SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5:
+ return "SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5";
+ break;
+ case SSL_RSA_WITH_IDEA_CBC_SHA:
+ return "SSL_RSA_WITH_IDEA_CBC_SHA";
+ break;
+ case SSL_RSA_EXPORT_WITH_DES40_CBC_SHA:
+ return "SSL_RSA_EXPORT_WITH_DES40_CBC_SHA";
+ break;
+ case SSL_RSA_WITH_DES_CBC_SHA:
+ return "SSL_RSA_WITH_DES_CBC_SHA";
+ break;
+ case SSL_RSA_WITH_3DES_EDE_CBC_SHA:
+ return "SSL_RSA_WITH_3DES_EDE_CBC_SHA";
+ break;
+ case SSL_DH_DSS_EXPORT_WITH_DES40_CBC_SHA:
+ return "SSL_DH_DSS_EXPORT_WITH_DES40_CBC_SHA";
+ break;
+ case SSL_DH_DSS_WITH_DES_CBC_SHA:
+ return "SSL_DH_DSS_WITH_DES_CBC_SHA";
+ break;
+ case SSL_DH_DSS_WITH_3DES_EDE_CBC_SHA:
+ return "SSL_DH_DSS_WITH_3DES_EDE_CBC_SHA";
+ break;
+ case SSL_DH_RSA_EXPORT_WITH_DES40_CBC_SHA:
+ return "SSL_DH_RSA_EXPORT_WITH_DES40_CBC_SHA";
+ break;
+ case SSL_DH_RSA_WITH_DES_CBC_SHA:
+ return "SSL_DH_RSA_WITH_DES_CBC_SHA";
+ break;
+ case SSL_DH_RSA_WITH_3DES_EDE_CBC_SHA:
+ return "SSL_DH_RSA_WITH_3DES_EDE_CBC_SHA";
+ break;
+ case SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA:
+ return "SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA";
+ break;
+ case SSL_DHE_DSS_WITH_DES_CBC_SHA:
+ return "SSL_DHE_DSS_WITH_DES_CBC_SHA";
+ break;
+ case SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA:
+ return "SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA";
+ break;
+ case SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA:
+ return "SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA";
+ break;
+ case SSL_DHE_RSA_WITH_DES_CBC_SHA:
+ return "SSL_DHE_RSA_WITH_DES_CBC_SHA";
+ break;
+ case SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA:
+ return "SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA";
+ break;
+ case SSL_DH_anon_EXPORT_WITH_RC4_40_MD5:
+ return "SSL_DH_anon_EXPORT_WITH_RC4_40_MD5";
+ break;
+ case SSL_DH_anon_WITH_RC4_128_MD5:
+ return "SSL_DH_anon_WITH_RC4_128_MD5";
+ break;
+ case SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA:
+ return "SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA";
+ break;
+ case SSL_DH_anon_WITH_DES_CBC_SHA:
+ return "SSL_DH_anon_WITH_DES_CBC_SHA";
+ break;
+ case SSL_DH_anon_WITH_3DES_EDE_CBC_SHA:
+ return "SSL_DH_anon_WITH_3DES_EDE_CBC_SHA";
+ break;
+ case SSL_FORTEZZA_DMS_WITH_NULL_SHA:
+ return "SSL_FORTEZZA_DMS_WITH_NULL_SHA";
+ break;
+ case SSL_FORTEZZA_DMS_WITH_FORTEZZA_CBC_SHA:
+ return "SSL_FORTEZZA_DMS_WITH_FORTEZZA_CBC_SHA";
+ break;
+ /* TLS 1.0 with AES (RFC 3268)
+ (Apparently these are used in SSLv3 implementations as well.) */
+ case TLS_RSA_WITH_AES_128_CBC_SHA:
+ return "TLS_RSA_WITH_AES_128_CBC_SHA";
+ break;
+ case TLS_DH_DSS_WITH_AES_128_CBC_SHA:
+ return "TLS_DH_DSS_WITH_AES_128_CBC_SHA";
+ break;
+ case TLS_DH_RSA_WITH_AES_128_CBC_SHA:
+ return "TLS_DH_RSA_WITH_AES_128_CBC_SHA";
+ break;
+ case TLS_DHE_DSS_WITH_AES_128_CBC_SHA:
+ return "TLS_DHE_DSS_WITH_AES_128_CBC_SHA";
+ break;
+ case TLS_DHE_RSA_WITH_AES_128_CBC_SHA:
+ return "TLS_DHE_RSA_WITH_AES_128_CBC_SHA";
+ break;
+ case TLS_DH_anon_WITH_AES_128_CBC_SHA:
+ return "TLS_DH_anon_WITH_AES_128_CBC_SHA";
+ break;
+ case TLS_RSA_WITH_AES_256_CBC_SHA:
+ return "TLS_RSA_WITH_AES_256_CBC_SHA";
+ break;
+ case TLS_DH_DSS_WITH_AES_256_CBC_SHA:
+ return "TLS_DH_DSS_WITH_AES_256_CBC_SHA";
+ break;
+ case TLS_DH_RSA_WITH_AES_256_CBC_SHA:
+ return "TLS_DH_RSA_WITH_AES_256_CBC_SHA";
+ break;
+ case TLS_DHE_DSS_WITH_AES_256_CBC_SHA:
+ return "TLS_DHE_DSS_WITH_AES_256_CBC_SHA";
+ break;
+ case TLS_DHE_RSA_WITH_AES_256_CBC_SHA:
+ return "TLS_DHE_RSA_WITH_AES_256_CBC_SHA";
+ break;
+ case TLS_DH_anon_WITH_AES_256_CBC_SHA:
+ return "TLS_DH_anon_WITH_AES_256_CBC_SHA";
+ break;
+ /* SSL version 2.0 */
+ case SSL_RSA_WITH_RC2_CBC_MD5:
+ return "SSL_RSA_WITH_RC2_CBC_MD5";
+ break;
+ case SSL_RSA_WITH_IDEA_CBC_MD5:
+ return "SSL_RSA_WITH_IDEA_CBC_MD5";
+ break;
+ case SSL_RSA_WITH_DES_CBC_MD5:
+ return "SSL_RSA_WITH_DES_CBC_MD5";
+ break;
+ case SSL_RSA_WITH_3DES_EDE_CBC_MD5:
+ return "SSL_RSA_WITH_3DES_EDE_CBC_MD5";
+ break;
+ }
+ return "SSL_NULL_WITH_NULL_NULL";
+}
+
+CF_INLINE const char *TLSCipherNameForNumber(SSLCipherSuite cipher)
+{
+ switch(cipher) {
+ /* TLS 1.0 with AES (RFC 3268) */
+ case TLS_RSA_WITH_AES_128_CBC_SHA:
+ return "TLS_RSA_WITH_AES_128_CBC_SHA";
+ break;
+ case TLS_DH_DSS_WITH_AES_128_CBC_SHA:
+ return "TLS_DH_DSS_WITH_AES_128_CBC_SHA";
+ break;
+ case TLS_DH_RSA_WITH_AES_128_CBC_SHA:
+ return "TLS_DH_RSA_WITH_AES_128_CBC_SHA";
+ break;
+ case TLS_DHE_DSS_WITH_AES_128_CBC_SHA:
+ return "TLS_DHE_DSS_WITH_AES_128_CBC_SHA";
+ break;
+ case TLS_DHE_RSA_WITH_AES_128_CBC_SHA:
+ return "TLS_DHE_RSA_WITH_AES_128_CBC_SHA";
+ break;
+ case TLS_DH_anon_WITH_AES_128_CBC_SHA:
+ return "TLS_DH_anon_WITH_AES_128_CBC_SHA";
+ break;
+ case TLS_RSA_WITH_AES_256_CBC_SHA:
+ return "TLS_RSA_WITH_AES_256_CBC_SHA";
+ break;
+ case TLS_DH_DSS_WITH_AES_256_CBC_SHA:
+ return "TLS_DH_DSS_WITH_AES_256_CBC_SHA";
+ break;
+ case TLS_DH_RSA_WITH_AES_256_CBC_SHA:
+ return "TLS_DH_RSA_WITH_AES_256_CBC_SHA";
+ break;
+ case TLS_DHE_DSS_WITH_AES_256_CBC_SHA:
+ return "TLS_DHE_DSS_WITH_AES_256_CBC_SHA";
+ break;
+ case TLS_DHE_RSA_WITH_AES_256_CBC_SHA:
+ return "TLS_DHE_RSA_WITH_AES_256_CBC_SHA";
+ break;
+ case TLS_DH_anon_WITH_AES_256_CBC_SHA:
+ return "TLS_DH_anon_WITH_AES_256_CBC_SHA";
+ break;
+#if CURL_BUILD_MAC_10_6 || CURL_BUILD_IOS
+ /* TLS 1.0 with ECDSA (RFC 4492) */
+ case TLS_ECDH_ECDSA_WITH_NULL_SHA:
+ return "TLS_ECDH_ECDSA_WITH_NULL_SHA";
+ break;
+ case TLS_ECDH_ECDSA_WITH_RC4_128_SHA:
+ return "TLS_ECDH_ECDSA_WITH_RC4_128_SHA";
+ break;
+ case TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA:
+ return "TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA";
+ break;
+ case TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA:
+ return "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA";
+ break;
+ case TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA:
+ return "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA";
+ break;
+ case TLS_ECDHE_ECDSA_WITH_NULL_SHA:
+ return "TLS_ECDHE_ECDSA_WITH_NULL_SHA";
+ break;
+ case TLS_ECDHE_ECDSA_WITH_RC4_128_SHA:
+ return "TLS_ECDHE_ECDSA_WITH_RC4_128_SHA";
+ break;
+ case TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA:
+ return "TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA";
+ break;
+ case TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA:
+ return "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA";
+ break;
+ case TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA:
+ return "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA";
+ break;
+ case TLS_ECDH_RSA_WITH_NULL_SHA:
+ return "TLS_ECDH_RSA_WITH_NULL_SHA";
+ break;
+ case TLS_ECDH_RSA_WITH_RC4_128_SHA:
+ return "TLS_ECDH_RSA_WITH_RC4_128_SHA";
+ break;
+ case TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA:
+ return "TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA";
+ break;
+ case TLS_ECDH_RSA_WITH_AES_128_CBC_SHA:
+ return "TLS_ECDH_RSA_WITH_AES_128_CBC_SHA";
+ break;
+ case TLS_ECDH_RSA_WITH_AES_256_CBC_SHA:
+ return "TLS_ECDH_RSA_WITH_AES_256_CBC_SHA";
+ break;
+ case TLS_ECDHE_RSA_WITH_NULL_SHA:
+ return "TLS_ECDHE_RSA_WITH_NULL_SHA";
+ break;
+ case TLS_ECDHE_RSA_WITH_RC4_128_SHA:
+ return "TLS_ECDHE_RSA_WITH_RC4_128_SHA";
+ break;
+ case TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA:
+ return "TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA";
+ break;
+ case TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA:
+ return "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA";
+ break;
+ case TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA:
+ return "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA";
+ break;
+ case TLS_ECDH_anon_WITH_NULL_SHA:
+ return "TLS_ECDH_anon_WITH_NULL_SHA";
+ break;
+ case TLS_ECDH_anon_WITH_RC4_128_SHA:
+ return "TLS_ECDH_anon_WITH_RC4_128_SHA";
+ break;
+ case TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA:
+ return "TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA";
+ break;
+ case TLS_ECDH_anon_WITH_AES_128_CBC_SHA:
+ return "TLS_ECDH_anon_WITH_AES_128_CBC_SHA";
+ break;
+ case TLS_ECDH_anon_WITH_AES_256_CBC_SHA:
+ return "TLS_ECDH_anon_WITH_AES_256_CBC_SHA";
+ break;
+#endif /* CURL_BUILD_MAC_10_6 || CURL_BUILD_IOS */
+#if CURL_BUILD_MAC_10_8 || CURL_BUILD_IOS
+ /* TLS 1.2 (RFC 5246) */
+ case TLS_RSA_WITH_NULL_MD5:
+ return "TLS_RSA_WITH_NULL_MD5";
+ break;
+ case TLS_RSA_WITH_NULL_SHA:
+ return "TLS_RSA_WITH_NULL_SHA";
+ break;
+ case TLS_RSA_WITH_RC4_128_MD5:
+ return "TLS_RSA_WITH_RC4_128_MD5";
+ break;
+ case TLS_RSA_WITH_RC4_128_SHA:
+ return "TLS_RSA_WITH_RC4_128_SHA";
+ break;
+ case TLS_RSA_WITH_3DES_EDE_CBC_SHA:
+ return "TLS_RSA_WITH_3DES_EDE_CBC_SHA";
+ break;
+ case TLS_RSA_WITH_NULL_SHA256:
+ return "TLS_RSA_WITH_NULL_SHA256";
+ break;
+ case TLS_RSA_WITH_AES_128_CBC_SHA256:
+ return "TLS_RSA_WITH_AES_128_CBC_SHA256";
+ break;
+ case TLS_RSA_WITH_AES_256_CBC_SHA256:
+ return "TLS_RSA_WITH_AES_256_CBC_SHA256";
+ break;
+ case TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA:
+ return "TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA";
+ break;
+ case TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA:
+ return "TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA";
+ break;
+ case TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA:
+ return "TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA";
+ break;
+ case TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA:
+ return "TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA";
+ break;
+ case TLS_DH_DSS_WITH_AES_128_CBC_SHA256:
+ return "TLS_DH_DSS_WITH_AES_128_CBC_SHA256";
+ break;
+ case TLS_DH_RSA_WITH_AES_128_CBC_SHA256:
+ return "TLS_DH_RSA_WITH_AES_128_CBC_SHA256";
+ break;
+ case TLS_DHE_DSS_WITH_AES_128_CBC_SHA256:
+ return "TLS_DHE_DSS_WITH_AES_128_CBC_SHA256";
+ break;
+ case TLS_DHE_RSA_WITH_AES_128_CBC_SHA256:
+ return "TLS_DHE_RSA_WITH_AES_128_CBC_SHA256";
+ break;
+ case TLS_DH_DSS_WITH_AES_256_CBC_SHA256:
+ return "TLS_DH_DSS_WITH_AES_256_CBC_SHA256";
+ break;
+ case TLS_DH_RSA_WITH_AES_256_CBC_SHA256:
+ return "TLS_DH_RSA_WITH_AES_256_CBC_SHA256";
+ break;
+ case TLS_DHE_DSS_WITH_AES_256_CBC_SHA256:
+ return "TLS_DHE_DSS_WITH_AES_256_CBC_SHA256";
+ break;
+ case TLS_DHE_RSA_WITH_AES_256_CBC_SHA256:
+ return "TLS_DHE_RSA_WITH_AES_256_CBC_SHA256";
+ break;
+ case TLS_DH_anon_WITH_RC4_128_MD5:
+ return "TLS_DH_anon_WITH_RC4_128_MD5";
+ break;
+ case TLS_DH_anon_WITH_3DES_EDE_CBC_SHA:
+ return "TLS_DH_anon_WITH_3DES_EDE_CBC_SHA";
+ break;
+ case TLS_DH_anon_WITH_AES_128_CBC_SHA256:
+ return "TLS_DH_anon_WITH_AES_128_CBC_SHA256";
+ break;
+ case TLS_DH_anon_WITH_AES_256_CBC_SHA256:
+ return "TLS_DH_anon_WITH_AES_256_CBC_SHA256";
+ break;
+ /* TLS 1.2 with AES GCM (RFC 5288) */
+ case TLS_RSA_WITH_AES_128_GCM_SHA256:
+ return "TLS_RSA_WITH_AES_128_GCM_SHA256";
+ break;
+ case TLS_RSA_WITH_AES_256_GCM_SHA384:
+ return "TLS_RSA_WITH_AES_256_GCM_SHA384";
+ break;
+ case TLS_DHE_RSA_WITH_AES_128_GCM_SHA256:
+ return "TLS_DHE_RSA_WITH_AES_128_GCM_SHA256";
+ break;
+ case TLS_DHE_RSA_WITH_AES_256_GCM_SHA384:
+ return "TLS_DHE_RSA_WITH_AES_256_GCM_SHA384";
+ break;
+ case TLS_DH_RSA_WITH_AES_128_GCM_SHA256:
+ return "TLS_DH_RSA_WITH_AES_128_GCM_SHA256";
+ break;
+ case TLS_DH_RSA_WITH_AES_256_GCM_SHA384:
+ return "TLS_DH_RSA_WITH_AES_256_GCM_SHA384";
+ break;
+ case TLS_DHE_DSS_WITH_AES_128_GCM_SHA256:
+ return "TLS_DHE_DSS_WITH_AES_128_GCM_SHA256";
+ break;
+ case TLS_DHE_DSS_WITH_AES_256_GCM_SHA384:
+ return "TLS_DHE_DSS_WITH_AES_256_GCM_SHA384";
+ break;
+ case TLS_DH_DSS_WITH_AES_128_GCM_SHA256:
+ return "TLS_DH_DSS_WITH_AES_128_GCM_SHA256";
+ break;
+ case TLS_DH_DSS_WITH_AES_256_GCM_SHA384:
+ return "TLS_DH_DSS_WITH_AES_256_GCM_SHA384";
+ break;
+ case TLS_DH_anon_WITH_AES_128_GCM_SHA256:
+ return "TLS_DH_anon_WITH_AES_128_GCM_SHA256";
+ break;
+ case TLS_DH_anon_WITH_AES_256_GCM_SHA384:
+ return "TLS_DH_anon_WITH_AES_256_GCM_SHA384";
+ break;
+ /* TLS 1.2 with elliptic curve ciphers (RFC 5289) */
+ case TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256:
+ return "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256";
+ break;
+ case TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384:
+ return "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384";
+ break;
+ case TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256:
+ return "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256";
+ break;
+ case TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384:
+ return "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384";
+ break;
+ case TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256:
+ return "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256";
+ break;
+ case TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384:
+ return "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384";
+ break;
+ case TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256:
+ return "TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256";
+ break;
+ case TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384:
+ return "TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384";
+ break;
+ case TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256:
+ return "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256";
+ break;
+ case TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384:
+ return "TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384";
+ break;
+ case TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256:
+ return "TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256";
+ break;
+ case TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384:
+ return "TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384";
+ break;
+ case TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256:
+ return "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256";
+ break;
+ case TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384:
+ return "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384";
+ break;
+ case TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256:
+ return "TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256";
+ break;
+ case TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384:
+ return "TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384";
+ break;
+ case TLS_EMPTY_RENEGOTIATION_INFO_SCSV:
+ return "TLS_EMPTY_RENEGOTIATION_INFO_SCSV";
+ break;
+#else
+ case SSL_RSA_WITH_NULL_MD5:
+ return "TLS_RSA_WITH_NULL_MD5";
+ break;
+ case SSL_RSA_WITH_NULL_SHA:
+ return "TLS_RSA_WITH_NULL_SHA";
+ break;
+ case SSL_RSA_WITH_RC4_128_MD5:
+ return "TLS_RSA_WITH_RC4_128_MD5";
+ break;
+ case SSL_RSA_WITH_RC4_128_SHA:
+ return "TLS_RSA_WITH_RC4_128_SHA";
+ break;
+ case SSL_RSA_WITH_3DES_EDE_CBC_SHA:
+ return "TLS_RSA_WITH_3DES_EDE_CBC_SHA";
+ break;
+ case SSL_DH_anon_WITH_RC4_128_MD5:
+ return "TLS_DH_anon_WITH_RC4_128_MD5";
+ break;
+ case SSL_DH_anon_WITH_3DES_EDE_CBC_SHA:
+ return "TLS_DH_anon_WITH_3DES_EDE_CBC_SHA";
+ break;
+#endif /* CURL_BUILD_MAC_10_8 || CURL_BUILD_IOS */
+#if CURL_BUILD_MAC_10_9 || CURL_BUILD_IOS_7
+ /* TLS PSK (RFC 4279): */
+ case TLS_PSK_WITH_RC4_128_SHA:
+ return "TLS_PSK_WITH_RC4_128_SHA";
+ break;
+ case TLS_PSK_WITH_3DES_EDE_CBC_SHA:
+ return "TLS_PSK_WITH_3DES_EDE_CBC_SHA";
+ break;
+ case TLS_PSK_WITH_AES_128_CBC_SHA:
+ return "TLS_PSK_WITH_AES_128_CBC_SHA";
+ break;
+ case TLS_PSK_WITH_AES_256_CBC_SHA:
+ return "TLS_PSK_WITH_AES_256_CBC_SHA";
+ break;
+ case TLS_DHE_PSK_WITH_RC4_128_SHA:
+ return "TLS_DHE_PSK_WITH_RC4_128_SHA";
+ break;
+ case TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA:
+ return "TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA";
+ break;
+ case TLS_DHE_PSK_WITH_AES_128_CBC_SHA:
+ return "TLS_DHE_PSK_WITH_AES_128_CBC_SHA";
+ break;
+ case TLS_DHE_PSK_WITH_AES_256_CBC_SHA:
+ return "TLS_DHE_PSK_WITH_AES_256_CBC_SHA";
+ break;
+ case TLS_RSA_PSK_WITH_RC4_128_SHA:
+ return "TLS_RSA_PSK_WITH_RC4_128_SHA";
+ break;
+ case TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA:
+ return "TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA";
+ break;
+ case TLS_RSA_PSK_WITH_AES_128_CBC_SHA:
+ return "TLS_RSA_PSK_WITH_AES_128_CBC_SHA";
+ break;
+ case TLS_RSA_PSK_WITH_AES_256_CBC_SHA:
+ return "TLS_RSA_PSK_WITH_AES_256_CBC_SHA";
+ break;
+ /* More TLS PSK (RFC 4785): */
+ case TLS_PSK_WITH_NULL_SHA:
+ return "TLS_PSK_WITH_NULL_SHA";
+ break;
+ case TLS_DHE_PSK_WITH_NULL_SHA:
+ return "TLS_DHE_PSK_WITH_NULL_SHA";
+ break;
+ case TLS_RSA_PSK_WITH_NULL_SHA:
+ return "TLS_RSA_PSK_WITH_NULL_SHA";
+ break;
+ /* Even more TLS PSK (RFC 5487): */
+ case TLS_PSK_WITH_AES_128_GCM_SHA256:
+ return "TLS_PSK_WITH_AES_128_GCM_SHA256";
+ break;
+ case TLS_PSK_WITH_AES_256_GCM_SHA384:
+ return "TLS_PSK_WITH_AES_256_GCM_SHA384";
+ break;
+ case TLS_DHE_PSK_WITH_AES_128_GCM_SHA256:
+ return "TLS_DHE_PSK_WITH_AES_128_GCM_SHA256";
+ break;
+ case TLS_DHE_PSK_WITH_AES_256_GCM_SHA384:
+ return "TLS_DHE_PSK_WITH_AES_256_GCM_SHA384";
+ break;
+ case TLS_RSA_PSK_WITH_AES_128_GCM_SHA256:
+ return "TLS_RSA_PSK_WITH_AES_128_GCM_SHA256";
+ break;
+ case TLS_RSA_PSK_WITH_AES_256_GCM_SHA384:
+ return "TLS_PSK_WITH_AES_256_GCM_SHA384";
+ break;
+ case TLS_PSK_WITH_AES_128_CBC_SHA256:
+ return "TLS_PSK_WITH_AES_128_CBC_SHA256";
+ break;
+ case TLS_PSK_WITH_AES_256_CBC_SHA384:
+ return "TLS_PSK_WITH_AES_256_CBC_SHA384";
+ break;
+ case TLS_PSK_WITH_NULL_SHA256:
+ return "TLS_PSK_WITH_NULL_SHA256";
+ break;
+ case TLS_PSK_WITH_NULL_SHA384:
+ return "TLS_PSK_WITH_NULL_SHA384";
+ break;
+ case TLS_DHE_PSK_WITH_AES_128_CBC_SHA256:
+ return "TLS_DHE_PSK_WITH_AES_128_CBC_SHA256";
+ break;
+ case TLS_DHE_PSK_WITH_AES_256_CBC_SHA384:
+ return "TLS_DHE_PSK_WITH_AES_256_CBC_SHA384";
+ break;
+ case TLS_DHE_PSK_WITH_NULL_SHA256:
+ return "TLS_DHE_PSK_WITH_NULL_SHA256";
+ break;
+ case TLS_DHE_PSK_WITH_NULL_SHA384:
+ return "TLS_RSA_PSK_WITH_NULL_SHA384";
+ break;
+ case TLS_RSA_PSK_WITH_AES_128_CBC_SHA256:
+ return "TLS_RSA_PSK_WITH_AES_128_CBC_SHA256";
+ break;
+ case TLS_RSA_PSK_WITH_AES_256_CBC_SHA384:
+ return "TLS_RSA_PSK_WITH_AES_256_CBC_SHA384";
+ break;
+ case TLS_RSA_PSK_WITH_NULL_SHA256:
+ return "TLS_RSA_PSK_WITH_NULL_SHA256";
+ break;
+ case TLS_RSA_PSK_WITH_NULL_SHA384:
+ return "TLS_RSA_PSK_WITH_NULL_SHA384";
+ break;
+#endif /* CURL_BUILD_MAC_10_9 || CURL_BUILD_IOS_7 */
+#if CURL_BUILD_MAC_10_13 || CURL_BUILD_IOS_11
+ /* New ChaCha20+Poly1305 cipher-suites used by TLS 1.3: */
+ case TLS_AES_128_GCM_SHA256:
+ return "TLS_AES_128_GCM_SHA256";
+ break;
+ case TLS_AES_256_GCM_SHA384:
+ return "TLS_AES_256_GCM_SHA384";
+ break;
+ case TLS_CHACHA20_POLY1305_SHA256:
+ return "TLS_CHACHA20_POLY1305_SHA256";
+ break;
+ case TLS_AES_128_CCM_SHA256:
+ return "TLS_AES_128_CCM_SHA256";
+ break;
+ case TLS_AES_128_CCM_8_SHA256:
+ return "TLS_AES_128_CCM_8_SHA256";
+ break;
+ case TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256:
+ return "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256";
+ break;
+ case TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256:
+ return "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256";
+ break;
+#endif /* CURL_BUILD_MAC_10_13 || CURL_BUILD_IOS_11 */
+ }
+ return "TLS_NULL_WITH_NULL_NULL";
+}
+#endif /* !CURL_DISABLE_VERBOSE_STRINGS */
+
+#if CURL_BUILD_MAC
+CF_INLINE void GetDarwinVersionNumber(int *major, int *minor)
+{
+ int mib[2];
+ char *os_version;
+ size_t os_version_len;
+ char *os_version_major, *os_version_minor;
+ char *tok_buf;
+
+ /* Get the Darwin kernel version from the kernel using sysctl(): */
+ mib[0] = CTL_KERN;
+ mib[1] = KERN_OSRELEASE;
+ if(sysctl(mib, 2, NULL, &os_version_len, NULL, 0) == -1)
+ return;
+ os_version = malloc(os_version_len*sizeof(char));
+ if(!os_version)
+ return;
+ if(sysctl(mib, 2, os_version, &os_version_len, NULL, 0) == -1) {
+ free(os_version);
+ return;
+ }
+
+ /* Parse the version: */
+ os_version_major = strtok_r(os_version, ".", &tok_buf);
+ os_version_minor = strtok_r(NULL, ".", &tok_buf);
+ *major = atoi(os_version_major);
+ *minor = atoi(os_version_minor);
+ free(os_version);
+}
+#endif /* CURL_BUILD_MAC */
+
+/* Apple provides a myriad of ways of getting information about a certificate
+ into a string. Some aren't available under iOS or newer cats. So here's
+ a unified function for getting a string describing the certificate that
+ ought to work in all cats starting with Leopard. */
+CF_INLINE CFStringRef getsubject(SecCertificateRef cert)
+{
+ CFStringRef server_cert_summary = CFSTR("(null)");
+
+#if CURL_BUILD_IOS
+ /* iOS: There's only one way to do this. */
+ server_cert_summary = SecCertificateCopySubjectSummary(cert);
+#else
+#if CURL_BUILD_MAC_10_7
+ /* Lion & later: Get the long description if we can. */
+ if(SecCertificateCopyLongDescription != NULL)
+ server_cert_summary =
+ SecCertificateCopyLongDescription(NULL, cert, NULL);
+ else
+#endif /* CURL_BUILD_MAC_10_7 */
+#if CURL_BUILD_MAC_10_6
+ /* Snow Leopard: Get the certificate summary. */
+ if(SecCertificateCopySubjectSummary != NULL)
+ server_cert_summary = SecCertificateCopySubjectSummary(cert);
+ else
+#endif /* CURL_BUILD_MAC_10_6 */
+ /* Leopard is as far back as we go... */
+ (void)SecCertificateCopyCommonName(cert, &server_cert_summary);
+#endif /* CURL_BUILD_IOS */
+ return server_cert_summary;
+}
+
+static CURLcode CopyCertSubject(struct Curl_easy *data,
+ SecCertificateRef cert, char **certp)
+{
+ CFStringRef c = getsubject(cert);
+ CURLcode result = CURLE_OK;
+ const char *direct;
+ char *cbuf = NULL;
+ *certp = NULL;
+
+ if(!c) {
+ failf(data, "SSL: invalid CA certificate subject");
+ return CURLE_PEER_FAILED_VERIFICATION;
+ }
+
+ /* If the subject is already available as UTF-8 encoded (ie 'direct') then
+ use that, else convert it. */
+ direct = CFStringGetCStringPtr(c, kCFStringEncodingUTF8);
+ if(direct) {
+ *certp = strdup(direct);
+ if(!*certp) {
+ failf(data, "SSL: out of memory");
+ result = CURLE_OUT_OF_MEMORY;
+ }
+ }
+ else {
+ size_t cbuf_size = ((size_t)CFStringGetLength(c) * 4) + 1;
+ cbuf = calloc(cbuf_size, 1);
+ if(cbuf) {
+ if(!CFStringGetCString(c, cbuf, cbuf_size,
+ kCFStringEncodingUTF8)) {
+ failf(data, "SSL: invalid CA certificate subject");
+ result = CURLE_PEER_FAILED_VERIFICATION;
+ }
+ else
+ /* pass back the buffer */
+ *certp = cbuf;
+ }
+ else {
+ failf(data, "SSL: couldn't allocate %zu bytes of memory", cbuf_size);
+ result = CURLE_OUT_OF_MEMORY;
+ }
+ }
+ if(result)
+ free(cbuf);
+ CFRelease(c);
+ return result;
+}
+
+#if CURL_SUPPORT_MAC_10_6
+/* The SecKeychainSearch API was deprecated in Lion, and using it will raise
+ deprecation warnings, so let's not compile this unless it's necessary: */
+static OSStatus CopyIdentityWithLabelOldSchool(char *label,
+ SecIdentityRef *out_c_a_k)
+{
+ OSStatus status = errSecItemNotFound;
+ SecKeychainAttributeList attr_list;
+ SecKeychainAttribute attr;
+ SecKeychainSearchRef search = NULL;
+ SecCertificateRef cert = NULL;
+
+ /* Set up the attribute list: */
+ attr_list.count = 1L;
+ attr_list.attr = &attr;
+
+ /* Set up our lone search criterion: */
+ attr.tag = kSecLabelItemAttr;
+ attr.data = label;
+ attr.length = (UInt32)strlen(label);
+
+ /* Start searching: */
+ status = SecKeychainSearchCreateFromAttributes(NULL,
+ kSecCertificateItemClass,
+ &attr_list,
+ &search);
+ if(status == noErr) {
+ status = SecKeychainSearchCopyNext(search,
+ (SecKeychainItemRef *)&cert);
+ if(status == noErr && cert) {
+ /* If we found a certificate, does it have a private key? */
+ status = SecIdentityCreateWithCertificate(NULL, cert, out_c_a_k);
+ CFRelease(cert);
+ }
+ }
+
+ if(search)
+ CFRelease(search);
+ return status;
+}
+#endif /* CURL_SUPPORT_MAC_10_6 */
+
+static OSStatus CopyIdentityWithLabel(char *label,
+ SecIdentityRef *out_cert_and_key)
+{
+ OSStatus status = errSecItemNotFound;
+
+#if CURL_BUILD_MAC_10_7 || CURL_BUILD_IOS
+ CFArrayRef keys_list;
+ CFIndex keys_list_count;
+ CFIndex i;
+ CFStringRef common_name;
+
+ /* SecItemCopyMatching() was introduced in iOS and Snow Leopard.
+ kSecClassIdentity was introduced in Lion. If both exist, let's use them
+ to find the certificate. */
+ if(SecItemCopyMatching != NULL && kSecClassIdentity != NULL) {
+ CFTypeRef keys[5];
+ CFTypeRef values[5];
+ CFDictionaryRef query_dict;
+ CFStringRef label_cf = CFStringCreateWithCString(NULL, label,
+ kCFStringEncodingUTF8);
+
+ /* Set up our search criteria and expected results: */
+ values[0] = kSecClassIdentity; /* we want a certificate and a key */
+ keys[0] = kSecClass;
+ values[1] = kCFBooleanTrue; /* we want a reference */
+ keys[1] = kSecReturnRef;
+ values[2] = kSecMatchLimitAll; /* kSecMatchLimitOne would be better if the
+ * label matching below worked correctly */
+ keys[2] = kSecMatchLimit;
+ /* identity searches need a SecPolicyRef in order to work */
+ values[3] = SecPolicyCreateSSL(false, NULL);
+ keys[3] = kSecMatchPolicy;
+ /* match the name of the certificate (doesn't work in macOS 10.12.1) */
+ values[4] = label_cf;
+ keys[4] = kSecAttrLabel;
+ query_dict = CFDictionaryCreate(NULL, (const void **)keys,
+ (const void **)values, 5L,
+ &kCFCopyStringDictionaryKeyCallBacks,
+ &kCFTypeDictionaryValueCallBacks);
+ CFRelease(values[3]);
+
+ /* Do we have a match? */
+ status = SecItemCopyMatching(query_dict, (CFTypeRef *) &keys_list);
+
+ /* Because kSecAttrLabel matching doesn't work with kSecClassIdentity,
+ * we need to find the correct identity ourselves */
+ if(status == noErr) {
+ keys_list_count = CFArrayGetCount(keys_list);
+ *out_cert_and_key = NULL;
+ status = 1;
+ for(i = 0; i<keys_list_count; i++) {
+ OSStatus err = noErr;
+ SecCertificateRef cert = NULL;
+ SecIdentityRef identity =
+ (SecIdentityRef) CFArrayGetValueAtIndex(keys_list, i);
+ err = SecIdentityCopyCertificate(identity, &cert);
+ if(err == noErr) {
+#if CURL_BUILD_IOS
+ common_name = SecCertificateCopySubjectSummary(cert);
+#elif CURL_BUILD_MAC_10_7
+ SecCertificateCopyCommonName(cert, &common_name);
+#endif
+ if(CFStringCompare(common_name, label_cf, 0) == kCFCompareEqualTo) {
+ CFRelease(cert);
+ CFRelease(common_name);
+ CFRetain(identity);
+ *out_cert_and_key = identity;
+ status = noErr;
+ break;
+ }
+ CFRelease(common_name);
+ }
+ CFRelease(cert);
+ }
+ }
+
+ if(keys_list)
+ CFRelease(keys_list);
+ CFRelease(query_dict);
+ CFRelease(label_cf);
+ }
+ else {
+#if CURL_SUPPORT_MAC_10_6
+ /* On Leopard and Snow Leopard, fall back to SecKeychainSearch. */
+ status = CopyIdentityWithLabelOldSchool(label, out_cert_and_key);
+#endif /* CURL_SUPPORT_MAC_10_6 */
+ }
+#elif CURL_SUPPORT_MAC_10_6
+ /* For developers building on older cats, we have no choice but to fall back
+ to SecKeychainSearch. */
+ status = CopyIdentityWithLabelOldSchool(label, out_cert_and_key);
+#endif /* CURL_BUILD_MAC_10_7 || CURL_BUILD_IOS */
+ return status;
+}
+
+static OSStatus CopyIdentityFromPKCS12File(const char *cPath,
+ const char *cPassword,
+ SecIdentityRef *out_cert_and_key)
+{
+ OSStatus status = errSecItemNotFound;
+ CFURLRef pkcs_url = CFURLCreateFromFileSystemRepresentation(NULL,
+ (const UInt8 *)cPath, strlen(cPath), false);
+ CFStringRef password = cPassword ? CFStringCreateWithCString(NULL,
+ cPassword, kCFStringEncodingUTF8) : NULL;
+ CFDataRef pkcs_data = NULL;
+
+ /* We can import P12 files on iOS or OS X 10.7 or later: */
+ /* These constants are documented as having first appeared in 10.6 but they
+ raise linker errors when used on that cat for some reason. */
+#if CURL_BUILD_MAC_10_7 || CURL_BUILD_IOS
+ if(CFURLCreateDataAndPropertiesFromResource(NULL, pkcs_url, &pkcs_data,
+ NULL, NULL, &status)) {
+ CFArrayRef items = NULL;
+
+ /* On iOS SecPKCS12Import will never add the client certificate to the
+ * Keychain.
+ *
+ * It gives us back a SecIdentityRef that we can use directly. */
+#if CURL_BUILD_IOS
+ const void *cKeys[] = {kSecImportExportPassphrase};
+ const void *cValues[] = {password};
+ CFDictionaryRef options = CFDictionaryCreate(NULL, cKeys, cValues,
+ password ? 1L : 0L, NULL, NULL);
+
+ if(options != NULL) {
+ status = SecPKCS12Import(pkcs_data, options, &items);
+ CFRelease(options);
+ }
+
+
+ /* On macOS SecPKCS12Import will always add the client certificate to
+ * the Keychain.
+ *
+ * As this doesn't match iOS, and apps may not want to see their client
+ * certificate saved in the the user's keychain, we use SecItemImport
+ * with a NULL keychain to avoid importing it.
+ *
+ * This returns a SecCertificateRef from which we can construct a
+ * SecIdentityRef.
+ */
+#elif CURL_BUILD_MAC_10_7
+ SecItemImportExportKeyParameters keyParams;
+ SecExternalFormat inputFormat = kSecFormatPKCS12;
+ SecExternalItemType inputType = kSecItemTypeCertificate;
+
+ memset(&keyParams, 0x00, sizeof(keyParams));
+ keyParams.version = SEC_KEY_IMPORT_EXPORT_PARAMS_VERSION;
+ keyParams.passphrase = password;
+
+ status = SecItemImport(pkcs_data, NULL, &inputFormat, &inputType,
+ 0, &keyParams, NULL, &items);
+#endif
+
+
+ /* Extract the SecIdentityRef */
+ if(status == errSecSuccess && items && CFArrayGetCount(items)) {
+ CFIndex i, count;
+ count = CFArrayGetCount(items);
+
+ for(i = 0; i < count; i++) {
+ CFTypeRef item = (CFTypeRef) CFArrayGetValueAtIndex(items, i);
+ CFTypeID itemID = CFGetTypeID(item);
+
+ if(itemID == CFDictionaryGetTypeID()) {
+ CFTypeRef identity = (CFTypeRef) CFDictionaryGetValue(
+ (CFDictionaryRef) item,
+ kSecImportItemIdentity);
+ CFRetain(identity);
+ *out_cert_and_key = (SecIdentityRef) identity;
+ break;
+ }
+#if CURL_BUILD_MAC_10_7
+ else if(itemID == SecCertificateGetTypeID()) {
+ status = SecIdentityCreateWithCertificate(NULL,
+ (SecCertificateRef) item,
+ out_cert_and_key);
+ break;
+ }
+#endif
+ }
+ }
+
+ if(items)
+ CFRelease(items);
+ CFRelease(pkcs_data);
+ }
+#endif /* CURL_BUILD_MAC_10_7 || CURL_BUILD_IOS */
+ if(password)
+ CFRelease(password);
+ CFRelease(pkcs_url);
+ return status;
+}
+
+/* This code was borrowed from nss.c, with some modifications:
+ * Determine whether the nickname passed in is a filename that needs to
+ * be loaded as a PEM or a regular NSS nickname.
+ *
+ * returns 1 for a file
+ * returns 0 for not a file
+ */
+CF_INLINE bool is_file(const char *filename)
+{
+ struct_stat st;
+
+ if(filename == NULL)
+ return false;
+
+ if(stat(filename, &st) == 0)
+ return S_ISREG(st.st_mode);
+ return false;
+}
+
+#if CURL_BUILD_MAC_10_8 || CURL_BUILD_IOS
+static CURLcode sectransp_version_from_curl(SSLProtocol *darwinver,
+ long ssl_version)
+{
+ switch(ssl_version) {
+ case CURL_SSLVERSION_TLSv1_0:
+ *darwinver = kTLSProtocol1;
+ return CURLE_OK;
+ case CURL_SSLVERSION_TLSv1_1:
+ *darwinver = kTLSProtocol11;
+ return CURLE_OK;
+ case CURL_SSLVERSION_TLSv1_2:
+ *darwinver = kTLSProtocol12;
+ return CURLE_OK;
+ case CURL_SSLVERSION_TLSv1_3:
+ /* TLS 1.3 support first appeared in iOS 11 and macOS 10.13 */
+#if (CURL_BUILD_MAC_10_13 || CURL_BUILD_IOS_11) && HAVE_BUILTIN_AVAILABLE == 1
+ if(__builtin_available(macOS 10.13, iOS 11.0, *)) {
+ *darwinver = kTLSProtocol13;
+ return CURLE_OK;
+ }
+#endif /* (CURL_BUILD_MAC_10_13 || CURL_BUILD_IOS_11) &&
+ HAVE_BUILTIN_AVAILABLE == 1 */
+ break;
+ }
+ return CURLE_SSL_CONNECT_ERROR;
+}
+#endif
+
+static CURLcode
+set_ssl_version_min_max(struct connectdata *conn, int sockindex)
+{
+ struct Curl_easy *data = conn->data;
+ struct ssl_connect_data *connssl = &conn->ssl[sockindex];
+ long ssl_version = SSL_CONN_CONFIG(version);
+ long ssl_version_max = SSL_CONN_CONFIG(version_max);
+ long max_supported_version_by_os;
+
+ /* macOS 10.5-10.7 supported TLS 1.0 only.
+ macOS 10.8 and later, and iOS 5 and later, added TLS 1.1 and 1.2.
+ macOS 10.13 and later, and iOS 11 and later, added TLS 1.3. */
+#if (CURL_BUILD_MAC_10_13 || CURL_BUILD_IOS_11) && HAVE_BUILTIN_AVAILABLE == 1
+ if(__builtin_available(macOS 10.13, iOS 11.0, *)) {
+ max_supported_version_by_os = CURL_SSLVERSION_MAX_TLSv1_3;
+ }
+ else {
+ max_supported_version_by_os = CURL_SSLVERSION_MAX_TLSv1_2;
+ }
+#else
+ max_supported_version_by_os = CURL_SSLVERSION_MAX_TLSv1_2;
+#endif /* (CURL_BUILD_MAC_10_13 || CURL_BUILD_IOS_11) &&
+ HAVE_BUILTIN_AVAILABLE == 1 */
+
+ switch(ssl_version) {
+ case CURL_SSLVERSION_DEFAULT:
+ case CURL_SSLVERSION_TLSv1:
+ ssl_version = CURL_SSLVERSION_TLSv1_0;
+ break;
+ }
+
+ switch(ssl_version_max) {
+ case CURL_SSLVERSION_MAX_NONE:
+ case CURL_SSLVERSION_MAX_DEFAULT:
+ ssl_version_max = max_supported_version_by_os;
+ break;
+ }
+
+#if CURL_BUILD_MAC_10_8 || CURL_BUILD_IOS
+ if(SSLSetProtocolVersionMax != NULL) {
+ SSLProtocol darwin_ver_min = kTLSProtocol1;
+ SSLProtocol darwin_ver_max = kTLSProtocol1;
+ CURLcode result = sectransp_version_from_curl(&darwin_ver_min,
+ ssl_version);
+ if(result) {
+ failf(data, "unsupported min version passed via CURLOPT_SSLVERSION");
+ return result;
+ }
+ result = sectransp_version_from_curl(&darwin_ver_max,
+ ssl_version_max >> 16);
+ if(result) {
+ failf(data, "unsupported max version passed via CURLOPT_SSLVERSION");
+ return result;
+ }
+
+ (void)SSLSetProtocolVersionMin(BACKEND->ssl_ctx, darwin_ver_min);
+ (void)SSLSetProtocolVersionMax(BACKEND->ssl_ctx, darwin_ver_max);
+ return result;
+ }
+ else {
+#if CURL_SUPPORT_MAC_10_8
+ long i = ssl_version;
+ (void)SSLSetProtocolVersionEnabled(BACKEND->ssl_ctx,
+ kSSLProtocolAll,
+ false);
+ for(; i <= (ssl_version_max >> 16); i++) {
+ switch(i) {
+ case CURL_SSLVERSION_TLSv1_0:
+ (void)SSLSetProtocolVersionEnabled(BACKEND->ssl_ctx,
+ kTLSProtocol1,
+ true);
+ break;
+ case CURL_SSLVERSION_TLSv1_1:
+ (void)SSLSetProtocolVersionEnabled(BACKEND->ssl_ctx,
+ kTLSProtocol11,
+ true);
+ break;
+ case CURL_SSLVERSION_TLSv1_2:
+ (void)SSLSetProtocolVersionEnabled(BACKEND->ssl_ctx,
+ kTLSProtocol12,
+ true);
+ break;
+ case CURL_SSLVERSION_TLSv1_3:
+ failf(data, "Your version of the OS does not support TLSv1.3");
+ return CURLE_SSL_CONNECT_ERROR;
+ }
+ }
+ return CURLE_OK;
+#endif /* CURL_SUPPORT_MAC_10_8 */
+ }
+#endif /* CURL_BUILD_MAC_10_8 || CURL_BUILD_IOS */
+ failf(data, "Secure Transport: cannot set SSL protocol");
+ return CURLE_SSL_CONNECT_ERROR;
+}
+
+
+static CURLcode sectransp_connect_step1(struct connectdata *conn,
+ int sockindex)
+{
+ struct Curl_easy *data = conn->data;
+ curl_socket_t sockfd = conn->sock[sockindex];
+ struct ssl_connect_data *connssl = &conn->ssl[sockindex];
+ const char * const ssl_cafile = SSL_CONN_CONFIG(CAfile);
+ const bool verifypeer = SSL_CONN_CONFIG(verifypeer);
+ char * const ssl_cert = SSL_SET_OPTION(cert);
+ const char * const hostname = SSL_IS_PROXY() ? conn->http_proxy.host.name :
+ conn->host.name;
+ const long int port = SSL_IS_PROXY() ? conn->port : conn->remote_port;
+#ifdef ENABLE_IPV6
+ struct in6_addr addr;
+#else
+ struct in_addr addr;
+#endif /* ENABLE_IPV6 */
+ size_t all_ciphers_count = 0UL, allowed_ciphers_count = 0UL, i;
+ SSLCipherSuite *all_ciphers = NULL, *allowed_ciphers = NULL;
+ OSStatus err = noErr;
+#if CURL_BUILD_MAC
+ int darwinver_maj = 0, darwinver_min = 0;
+
+ GetDarwinVersionNumber(&darwinver_maj, &darwinver_min);
+#endif /* CURL_BUILD_MAC */
+
+#if CURL_BUILD_MAC_10_8 || CURL_BUILD_IOS
+ if(SSLCreateContext != NULL) { /* use the newer API if available */
+ if(BACKEND->ssl_ctx)
+ CFRelease(BACKEND->ssl_ctx);
+ BACKEND->ssl_ctx = SSLCreateContext(NULL, kSSLClientSide, kSSLStreamType);
+ if(!BACKEND->ssl_ctx) {
+ failf(data, "SSL: couldn't create a context!");
+ return CURLE_OUT_OF_MEMORY;
+ }
+ }
+ else {
+ /* The old ST API does not exist under iOS, so don't compile it: */
+#if CURL_SUPPORT_MAC_10_8
+ if(BACKEND->ssl_ctx)
+ (void)SSLDisposeContext(BACKEND->ssl_ctx);
+ err = SSLNewContext(false, &(BACKEND->ssl_ctx));
+ if(err != noErr) {
+ failf(data, "SSL: couldn't create a context: OSStatus %d", err);
+ return CURLE_OUT_OF_MEMORY;
+ }
+#endif /* CURL_SUPPORT_MAC_10_8 */
+ }
+#else
+ if(BACKEND->ssl_ctx)
+ (void)SSLDisposeContext(BACKEND->ssl_ctx);
+ err = SSLNewContext(false, &(BACKEND->ssl_ctx));
+ if(err != noErr) {
+ failf(data, "SSL: couldn't create a context: OSStatus %d", err);
+ return CURLE_OUT_OF_MEMORY;
+ }
+#endif /* CURL_BUILD_MAC_10_8 || CURL_BUILD_IOS */
+ BACKEND->ssl_write_buffered_length = 0UL; /* reset buffered write length */
+
+ /* check to see if we've been told to use an explicit SSL/TLS version */
+#if CURL_BUILD_MAC_10_8 || CURL_BUILD_IOS
+ if(SSLSetProtocolVersionMax != NULL) {
+ switch(conn->ssl_config.version) {
+ case CURL_SSLVERSION_TLSv1:
+ (void)SSLSetProtocolVersionMin(BACKEND->ssl_ctx, kTLSProtocol1);
+#if (CURL_BUILD_MAC_10_13 || CURL_BUILD_IOS_11) && HAVE_BUILTIN_AVAILABLE == 1
+ if(__builtin_available(macOS 10.13, iOS 11.0, *)) {
+ (void)SSLSetProtocolVersionMax(BACKEND->ssl_ctx, kTLSProtocol13);
+ }
+ else {
+ (void)SSLSetProtocolVersionMax(BACKEND->ssl_ctx, kTLSProtocol12);
+ }
+#else
+ (void)SSLSetProtocolVersionMax(BACKEND->ssl_ctx, kTLSProtocol12);
+#endif /* (CURL_BUILD_MAC_10_13 || CURL_BUILD_IOS_11) &&
+ HAVE_BUILTIN_AVAILABLE == 1 */
+ break;
+ case CURL_SSLVERSION_DEFAULT:
+ case CURL_SSLVERSION_TLSv1_0:
+ case CURL_SSLVERSION_TLSv1_1:
+ case CURL_SSLVERSION_TLSv1_2:
+ case CURL_SSLVERSION_TLSv1_3:
+ {
+ CURLcode result = set_ssl_version_min_max(conn, sockindex);
+ if(result != CURLE_OK)
+ return result;
+ break;
+ }
+ case CURL_SSLVERSION_SSLv3:
+ err = SSLSetProtocolVersionMin(BACKEND->ssl_ctx, kSSLProtocol3);
+ if(err != noErr) {
+ failf(data, "Your version of the OS does not support SSLv3");
+ return CURLE_SSL_CONNECT_ERROR;
+ }
+ (void)SSLSetProtocolVersionMax(BACKEND->ssl_ctx, kSSLProtocol3);
+ break;
+ case CURL_SSLVERSION_SSLv2:
+ err = SSLSetProtocolVersionMin(BACKEND->ssl_ctx, kSSLProtocol2);
+ if(err != noErr) {
+ failf(data, "Your version of the OS does not support SSLv2");
+ return CURLE_SSL_CONNECT_ERROR;
+ }
+ (void)SSLSetProtocolVersionMax(BACKEND->ssl_ctx, kSSLProtocol2);
+ break;
+ default:
+ failf(data, "Unrecognized parameter passed via CURLOPT_SSLVERSION");
+ return CURLE_SSL_CONNECT_ERROR;
+ }
+ }
+ else {
+#if CURL_SUPPORT_MAC_10_8
+ (void)SSLSetProtocolVersionEnabled(BACKEND->ssl_ctx,
+ kSSLProtocolAll,
+ false);
+ switch(conn->ssl_config.version) {
+ case CURL_SSLVERSION_DEFAULT:
+ case CURL_SSLVERSION_TLSv1:
+ (void)SSLSetProtocolVersionEnabled(BACKEND->ssl_ctx,
+ kTLSProtocol1,
+ true);
+ (void)SSLSetProtocolVersionEnabled(BACKEND->ssl_ctx,
+ kTLSProtocol11,
+ true);
+ (void)SSLSetProtocolVersionEnabled(BACKEND->ssl_ctx,
+ kTLSProtocol12,
+ true);
+ break;
+ case CURL_SSLVERSION_TLSv1_0:
+ case CURL_SSLVERSION_TLSv1_1:
+ case CURL_SSLVERSION_TLSv1_2:
+ case CURL_SSLVERSION_TLSv1_3:
+ {
+ CURLcode result = set_ssl_version_min_max(conn, sockindex);
+ if(result != CURLE_OK)
+ return result;
+ break;
+ }
+ case CURL_SSLVERSION_SSLv3:
+ err = SSLSetProtocolVersionEnabled(BACKEND->ssl_ctx,
+ kSSLProtocol3,
+ true);
+ if(err != noErr) {
+ failf(data, "Your version of the OS does not support SSLv3");
+ return CURLE_SSL_CONNECT_ERROR;
+ }
+ break;
+ case CURL_SSLVERSION_SSLv2:
+ err = SSLSetProtocolVersionEnabled(BACKEND->ssl_ctx,
+ kSSLProtocol2,
+ true);
+ if(err != noErr) {
+ failf(data, "Your version of the OS does not support SSLv2");
+ return CURLE_SSL_CONNECT_ERROR;
+ }
+ break;
+ default:
+ failf(data, "Unrecognized parameter passed via CURLOPT_SSLVERSION");
+ return CURLE_SSL_CONNECT_ERROR;
+ }
+#endif /* CURL_SUPPORT_MAC_10_8 */
+ }
+#else
+ if(conn->ssl_config.version_max != CURL_SSLVERSION_MAX_NONE) {
+ failf(data, "Your version of the OS does not support to set maximum"
+ " SSL/TLS version");
+ return CURLE_SSL_CONNECT_ERROR;
+ }
+ (void)SSLSetProtocolVersionEnabled(BACKEND->ssl_ctx, kSSLProtocolAll, false);
+ switch(conn->ssl_config.version) {
+ case CURL_SSLVERSION_DEFAULT:
+ case CURL_SSLVERSION_TLSv1:
+ case CURL_SSLVERSION_TLSv1_0:
+ (void)SSLSetProtocolVersionEnabled(BACKEND->ssl_ctx,
+ kTLSProtocol1,
+ true);
+ break;
+ case CURL_SSLVERSION_TLSv1_1:
+ failf(data, "Your version of the OS does not support TLSv1.1");
+ return CURLE_SSL_CONNECT_ERROR;
+ case CURL_SSLVERSION_TLSv1_2:
+ failf(data, "Your version of the OS does not support TLSv1.2");
+ return CURLE_SSL_CONNECT_ERROR;
+ case CURL_SSLVERSION_TLSv1_3:
+ failf(data, "Your version of the OS does not support TLSv1.3");
+ return CURLE_SSL_CONNECT_ERROR;
+ case CURL_SSLVERSION_SSLv2:
+ err = SSLSetProtocolVersionEnabled(BACKEND->ssl_ctx,
+ kSSLProtocol2,
+ true);
+ if(err != noErr) {
+ failf(data, "Your version of the OS does not support SSLv2");
+ return CURLE_SSL_CONNECT_ERROR;
+ }
+ break;
+ case CURL_SSLVERSION_SSLv3:
+ err = SSLSetProtocolVersionEnabled(BACKEND->ssl_ctx,
+ kSSLProtocol3,
+ true);
+ if(err != noErr) {
+ failf(data, "Your version of the OS does not support SSLv3");
+ return CURLE_SSL_CONNECT_ERROR;
+ }
+ break;
+ default:
+ failf(data, "Unrecognized parameter passed via CURLOPT_SSLVERSION");
+ return CURLE_SSL_CONNECT_ERROR;
+ }
+#endif /* CURL_BUILD_MAC_10_8 || CURL_BUILD_IOS */
+
+#if (CURL_BUILD_MAC_10_13 || CURL_BUILD_IOS_11) && HAVE_BUILTIN_AVAILABLE == 1
+ if(conn->bits.tls_enable_alpn) {
+ if(__builtin_available(macOS 10.13.4, iOS 11, *)) {
+ CFMutableArrayRef alpnArr = CFArrayCreateMutable(NULL, 0,
+ &kCFTypeArrayCallBacks);
+
+#ifdef USE_NGHTTP2
+ if(data->set.httpversion >= CURL_HTTP_VERSION_2 &&
+ (!SSL_IS_PROXY() || !conn->bits.tunnel_proxy)) {
+ CFArrayAppendValue(alpnArr, CFSTR(NGHTTP2_PROTO_VERSION_ID));
+ infof(data, "ALPN, offering %s\n", NGHTTP2_PROTO_VERSION_ID);
+ }
+#endif
+
+ CFArrayAppendValue(alpnArr, CFSTR(ALPN_HTTP_1_1));
+ infof(data, "ALPN, offering %s\n", ALPN_HTTP_1_1);
+
+ /* expects length prefixed preference ordered list of protocols in wire
+ * format
+ */
+ err = SSLSetALPNProtocols(BACKEND->ssl_ctx, alpnArr);
+ if(err != noErr)
+ infof(data, "WARNING: failed to set ALPN protocols; OSStatus %d\n",
+ err);
+ CFRelease(alpnArr);
+ }
+ }
+#endif
+
+ if(SSL_SET_OPTION(key)) {
+ infof(data, "WARNING: SSL: CURLOPT_SSLKEY is ignored by Secure "
+ "Transport. The private key must be in the Keychain.\n");
+ }
+
+ if(ssl_cert) {
+ SecIdentityRef cert_and_key = NULL;
+ bool is_cert_file = is_file(ssl_cert);
+
+ /* User wants to authenticate with a client cert. Look for it:
+ If we detect that this is a file on disk, then let's load it.
+ Otherwise, assume that the user wants to use an identity loaded
+ from the Keychain. */
+ if(is_cert_file) {
+ if(!SSL_SET_OPTION(cert_type))
+ infof(data, "WARNING: SSL: Certificate type not set, assuming "
+ "PKCS#12 format.\n");
+ else if(strncmp(SSL_SET_OPTION(cert_type), "P12",
+ strlen(SSL_SET_OPTION(cert_type))) != 0)
+ infof(data, "WARNING: SSL: The Security framework only supports "
+ "loading identities that are in PKCS#12 format.\n");
+
+ err = CopyIdentityFromPKCS12File(ssl_cert,
+ SSL_SET_OPTION(key_passwd), &cert_and_key);
+ }
+ else
+ err = CopyIdentityWithLabel(ssl_cert, &cert_and_key);
+
+ if(err == noErr && cert_and_key) {
+ SecCertificateRef cert = NULL;
+ CFTypeRef certs_c[1];
+ CFArrayRef certs;
+
+ /* If we found one, print it out: */
+ err = SecIdentityCopyCertificate(cert_and_key, &cert);
+ if(err == noErr) {
+ char *certp;
+ CURLcode result = CopyCertSubject(data, cert, &certp);
+ if(!result) {
+ infof(data, "Client certificate: %s\n", certp);
+ free(certp);
+ }
+
+ CFRelease(cert);
+ if(result == CURLE_PEER_FAILED_VERIFICATION)
+ return CURLE_SSL_CERTPROBLEM;
+ if(result)
+ return result;
+ }
+ certs_c[0] = cert_and_key;
+ certs = CFArrayCreate(NULL, (const void **)certs_c, 1L,
+ &kCFTypeArrayCallBacks);
+ err = SSLSetCertificate(BACKEND->ssl_ctx, certs);
+ if(certs)
+ CFRelease(certs);
+ if(err != noErr) {
+ failf(data, "SSL: SSLSetCertificate() failed: OSStatus %d", err);
+ return CURLE_SSL_CERTPROBLEM;
+ }
+ CFRelease(cert_and_key);
+ }
+ else {
+ switch(err) {
+ case errSecAuthFailed: case -25264: /* errSecPkcs12VerifyFailure */
+ failf(data, "SSL: Incorrect password for the certificate \"%s\" "
+ "and its private key.", ssl_cert);
+ break;
+ case -26275: /* errSecDecode */ case -25257: /* errSecUnknownFormat */
+ failf(data, "SSL: Couldn't make sense of the data in the "
+ "certificate \"%s\" and its private key.",
+ ssl_cert);
+ break;
+ case -25260: /* errSecPassphraseRequired */
+ failf(data, "SSL The certificate \"%s\" requires a password.",
+ ssl_cert);
+ break;
+ case errSecItemNotFound:
+ failf(data, "SSL: Can't find the certificate \"%s\" and its private "
+ "key in the Keychain.", ssl_cert);
+ break;
+ default:
+ failf(data, "SSL: Can't load the certificate \"%s\" and its private "
+ "key: OSStatus %d", ssl_cert, err);
+ break;
+ }
+ return CURLE_SSL_CERTPROBLEM;
+ }
+ }
+
+ /* SSL always tries to verify the peer, this only says whether it should
+ * fail to connect if the verification fails, or if it should continue
+ * anyway. In the latter case the result of the verification is checked with
+ * SSL_get_verify_result() below. */
+#if CURL_BUILD_MAC_10_6 || CURL_BUILD_IOS
+ /* Snow Leopard introduced the SSLSetSessionOption() function, but due to
+ a library bug with the way the kSSLSessionOptionBreakOnServerAuth flag
+ works, it doesn't work as expected under Snow Leopard, Lion or
+ Mountain Lion.
+ So we need to call SSLSetEnableCertVerify() on those older cats in order
+ to disable certificate validation if the user turned that off.
+ (SecureTransport will always validate the certificate chain by
+ default.)
+ Note:
+ Darwin 11.x.x is Lion (10.7)
+ Darwin 12.x.x is Mountain Lion (10.8)
+ Darwin 13.x.x is Mavericks (10.9)
+ Darwin 14.x.x is Yosemite (10.10)
+ Darwin 15.x.x is El Capitan (10.11)
+ */
+#if CURL_BUILD_MAC
+ if(SSLSetSessionOption != NULL && darwinver_maj >= 13) {
+#else
+ if(SSLSetSessionOption != NULL) {
+#endif /* CURL_BUILD_MAC */
+ bool break_on_auth = !conn->ssl_config.verifypeer || ssl_cafile;
+ err = SSLSetSessionOption(BACKEND->ssl_ctx,
+ kSSLSessionOptionBreakOnServerAuth,
+ break_on_auth);
+ if(err != noErr) {
+ failf(data, "SSL: SSLSetSessionOption() failed: OSStatus %d", err);
+ return CURLE_SSL_CONNECT_ERROR;
+ }
+ }
+ else {
+#if CURL_SUPPORT_MAC_10_8
+ err = SSLSetEnableCertVerify(BACKEND->ssl_ctx,
+ conn->ssl_config.verifypeer?true:false);
+ if(err != noErr) {
+ failf(data, "SSL: SSLSetEnableCertVerify() failed: OSStatus %d", err);
+ return CURLE_SSL_CONNECT_ERROR;
+ }
+#endif /* CURL_SUPPORT_MAC_10_8 */
+ }
+#else
+ err = SSLSetEnableCertVerify(BACKEND->ssl_ctx,
+ conn->ssl_config.verifypeer?true:false);
+ if(err != noErr) {
+ failf(data, "SSL: SSLSetEnableCertVerify() failed: OSStatus %d", err);
+ return CURLE_SSL_CONNECT_ERROR;
+ }
+#endif /* CURL_BUILD_MAC_10_6 || CURL_BUILD_IOS */
+
+ if(ssl_cafile && verifypeer) {
+ bool is_cert_file = is_file(ssl_cafile);
+
+ if(!is_cert_file) {
+ failf(data, "SSL: can't load CA certificate file %s", ssl_cafile);
+ return CURLE_SSL_CACERT_BADFILE;
+ }
+ }
+
+ /* Configure hostname check. SNI is used if available.
+ * Both hostname check and SNI require SSLSetPeerDomainName().
+ * Also: the verifyhost setting influences SNI usage */
+ if(conn->ssl_config.verifyhost) {
+ err = SSLSetPeerDomainName(BACKEND->ssl_ctx, hostname,
+ strlen(hostname));
+
+ if(err != noErr) {
+ infof(data, "WARNING: SSL: SSLSetPeerDomainName() failed: OSStatus %d\n",
+ err);
+ }
+
+ if((Curl_inet_pton(AF_INET, hostname, &addr))
+ #ifdef ENABLE_IPV6
+ || (Curl_inet_pton(AF_INET6, hostname, &addr))
+ #endif
+ ) {
+ infof(data, "WARNING: using IP address, SNI is being disabled by "
+ "the OS.\n");
+ }
+ }
+ else {
+ infof(data, "WARNING: disabling hostname validation also disables SNI.\n");
+ }
+
+ /* Disable cipher suites that ST supports but are not safe. These ciphers
+ are unlikely to be used in any case since ST gives other ciphers a much
+ higher priority, but it's probably better that we not connect at all than
+ to give the user a false sense of security if the server only supports
+ insecure ciphers. (Note: We don't care about SSLv2-only ciphers.) */
+ err = SSLGetNumberSupportedCiphers(BACKEND->ssl_ctx, &all_ciphers_count);
+ if(err != noErr) {
+ failf(data, "SSL: SSLGetNumberSupportedCiphers() failed: OSStatus %d",
+ err);
+ return CURLE_SSL_CIPHER;
+ }
+ all_ciphers = malloc(all_ciphers_count*sizeof(SSLCipherSuite));
+ if(!all_ciphers) {
+ failf(data, "SSL: Failed to allocate memory for all ciphers");
+ return CURLE_OUT_OF_MEMORY;
+ }
+ allowed_ciphers = malloc(all_ciphers_count*sizeof(SSLCipherSuite));
+ if(!allowed_ciphers) {
+ Curl_safefree(all_ciphers);
+ failf(data, "SSL: Failed to allocate memory for allowed ciphers");
+ return CURLE_OUT_OF_MEMORY;
+ }
+ err = SSLGetSupportedCiphers(BACKEND->ssl_ctx, all_ciphers,
+ &all_ciphers_count);
+ if(err != noErr) {
+ Curl_safefree(all_ciphers);
+ Curl_safefree(allowed_ciphers);
+ return CURLE_SSL_CIPHER;
+ }
+ for(i = 0UL ; i < all_ciphers_count ; i++) {
+#if CURL_BUILD_MAC
+ /* There's a known bug in early versions of Mountain Lion where ST's ECC
+ ciphers (cipher suite 0xC001 through 0xC032) simply do not work.
+ Work around the problem here by disabling those ciphers if we are
+ running in an affected version of OS X. */
+ if(darwinver_maj == 12 && darwinver_min <= 3 &&
+ all_ciphers[i] >= 0xC001 && all_ciphers[i] <= 0xC032) {
+ continue;
+ }
+#endif /* CURL_BUILD_MAC */
+ switch(all_ciphers[i]) {
+ /* Disable NULL ciphersuites: */
+ case SSL_NULL_WITH_NULL_NULL:
+ case SSL_RSA_WITH_NULL_MD5:
+ case SSL_RSA_WITH_NULL_SHA:
+ case 0x003B: /* TLS_RSA_WITH_NULL_SHA256 */
+ case SSL_FORTEZZA_DMS_WITH_NULL_SHA:
+ case 0xC001: /* TLS_ECDH_ECDSA_WITH_NULL_SHA */
+ case 0xC006: /* TLS_ECDHE_ECDSA_WITH_NULL_SHA */
+ case 0xC00B: /* TLS_ECDH_RSA_WITH_NULL_SHA */
+ case 0xC010: /* TLS_ECDHE_RSA_WITH_NULL_SHA */
+ case 0x002C: /* TLS_PSK_WITH_NULL_SHA */
+ case 0x002D: /* TLS_DHE_PSK_WITH_NULL_SHA */
+ case 0x002E: /* TLS_RSA_PSK_WITH_NULL_SHA */
+ case 0x00B0: /* TLS_PSK_WITH_NULL_SHA256 */
+ case 0x00B1: /* TLS_PSK_WITH_NULL_SHA384 */
+ case 0x00B4: /* TLS_DHE_PSK_WITH_NULL_SHA256 */
+ case 0x00B5: /* TLS_DHE_PSK_WITH_NULL_SHA384 */
+ case 0x00B8: /* TLS_RSA_PSK_WITH_NULL_SHA256 */
+ case 0x00B9: /* TLS_RSA_PSK_WITH_NULL_SHA384 */
+ /* Disable anonymous ciphersuites: */
+ case SSL_DH_anon_EXPORT_WITH_RC4_40_MD5:
+ case SSL_DH_anon_WITH_RC4_128_MD5:
+ case SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA:
+ case SSL_DH_anon_WITH_DES_CBC_SHA:
+ case SSL_DH_anon_WITH_3DES_EDE_CBC_SHA:
+ case TLS_DH_anon_WITH_AES_128_CBC_SHA:
+ case TLS_DH_anon_WITH_AES_256_CBC_SHA:
+ case 0xC015: /* TLS_ECDH_anon_WITH_NULL_SHA */
+ case 0xC016: /* TLS_ECDH_anon_WITH_RC4_128_SHA */
+ case 0xC017: /* TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA */
+ case 0xC018: /* TLS_ECDH_anon_WITH_AES_128_CBC_SHA */
+ case 0xC019: /* TLS_ECDH_anon_WITH_AES_256_CBC_SHA */
+ case 0x006C: /* TLS_DH_anon_WITH_AES_128_CBC_SHA256 */
+ case 0x006D: /* TLS_DH_anon_WITH_AES_256_CBC_SHA256 */
+ case 0x00A6: /* TLS_DH_anon_WITH_AES_128_GCM_SHA256 */
+ case 0x00A7: /* TLS_DH_anon_WITH_AES_256_GCM_SHA384 */
+ /* Disable weak key ciphersuites: */
+ case SSL_RSA_EXPORT_WITH_RC4_40_MD5:
+ case SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5:
+ case SSL_RSA_EXPORT_WITH_DES40_CBC_SHA:
+ case SSL_DH_DSS_EXPORT_WITH_DES40_CBC_SHA:
+ case SSL_DH_RSA_EXPORT_WITH_DES40_CBC_SHA:
+ case SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA:
+ case SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA:
+ case SSL_RSA_WITH_DES_CBC_SHA:
+ case SSL_DH_DSS_WITH_DES_CBC_SHA:
+ case SSL_DH_RSA_WITH_DES_CBC_SHA:
+ case SSL_DHE_DSS_WITH_DES_CBC_SHA:
+ case SSL_DHE_RSA_WITH_DES_CBC_SHA:
+ /* Disable IDEA: */
+ case SSL_RSA_WITH_IDEA_CBC_SHA:
+ case SSL_RSA_WITH_IDEA_CBC_MD5:
+ /* Disable RC4: */
+ case SSL_RSA_WITH_RC4_128_MD5:
+ case SSL_RSA_WITH_RC4_128_SHA:
+ case 0xC002: /* TLS_ECDH_ECDSA_WITH_RC4_128_SHA */
+ case 0xC007: /* TLS_ECDHE_ECDSA_WITH_RC4_128_SHA*/
+ case 0xC00C: /* TLS_ECDH_RSA_WITH_RC4_128_SHA */
+ case 0xC011: /* TLS_ECDHE_RSA_WITH_RC4_128_SHA */
+ case 0x008A: /* TLS_PSK_WITH_RC4_128_SHA */
+ case 0x008E: /* TLS_DHE_PSK_WITH_RC4_128_SHA */
+ case 0x0092: /* TLS_RSA_PSK_WITH_RC4_128_SHA */
+ break;
+ default: /* enable everything else */
+ allowed_ciphers[allowed_ciphers_count++] = all_ciphers[i];
+ break;
+ }
+ }
+ err = SSLSetEnabledCiphers(BACKEND->ssl_ctx, allowed_ciphers,
+ allowed_ciphers_count);
+ Curl_safefree(all_ciphers);
+ Curl_safefree(allowed_ciphers);
+ if(err != noErr) {
+ failf(data, "SSL: SSLSetEnabledCiphers() failed: OSStatus %d", err);
+ return CURLE_SSL_CIPHER;
+ }
+
+#if CURL_BUILD_MAC_10_9 || CURL_BUILD_IOS_7
+ /* We want to enable 1/n-1 when using a CBC cipher unless the user
+ specifically doesn't want us doing that: */
+ if(SSLSetSessionOption != NULL) {
+ /* TODO s/data->set.ssl.enable_beast/SSL_SET_OPTION(enable_beast)/g */
+ SSLSetSessionOption(BACKEND->ssl_ctx, kSSLSessionOptionSendOneByteRecord,
+ !data->set.ssl.enable_beast);
+ SSLSetSessionOption(BACKEND->ssl_ctx, kSSLSessionOptionFalseStart,
+ data->set.ssl.falsestart); /* false start support */
+ }
+#endif /* CURL_BUILD_MAC_10_9 || CURL_BUILD_IOS_7 */
+
+ /* Check if there's a cached ID we can/should use here! */
+ if(SSL_SET_OPTION(primary.sessionid)) {
+ char *ssl_sessionid;
+ size_t ssl_sessionid_len;
+
+ Curl_ssl_sessionid_lock(conn);
+ if(!Curl_ssl_getsessionid(conn, (void **)&ssl_sessionid,
+ &ssl_sessionid_len, sockindex)) {
+ /* we got a session id, use it! */
+ err = SSLSetPeerID(BACKEND->ssl_ctx, ssl_sessionid, ssl_sessionid_len);
+ Curl_ssl_sessionid_unlock(conn);
+ if(err != noErr) {
+ failf(data, "SSL: SSLSetPeerID() failed: OSStatus %d", err);
+ return CURLE_SSL_CONNECT_ERROR;
+ }
+ /* Informational message */
+ infof(data, "SSL re-using session ID\n");
+ }
+ /* If there isn't one, then let's make one up! This has to be done prior
+ to starting the handshake. */
+ else {
+ CURLcode result;
+ ssl_sessionid =
+ aprintf("%s:%d:%d:%s:%hu", ssl_cafile,
+ verifypeer, SSL_CONN_CONFIG(verifyhost), hostname, port);
+ ssl_sessionid_len = strlen(ssl_sessionid);
+
+ err = SSLSetPeerID(BACKEND->ssl_ctx, ssl_sessionid, ssl_sessionid_len);
+ if(err != noErr) {
+ Curl_ssl_sessionid_unlock(conn);
+ failf(data, "SSL: SSLSetPeerID() failed: OSStatus %d", err);
+ return CURLE_SSL_CONNECT_ERROR;
+ }
+
+ result = Curl_ssl_addsessionid(conn, ssl_sessionid, ssl_sessionid_len,
+ sockindex);
+ Curl_ssl_sessionid_unlock(conn);
+ if(result) {
+ failf(data, "failed to store ssl session");
+ return result;
+ }
+ }
+ }
+
+ err = SSLSetIOFuncs(BACKEND->ssl_ctx, SocketRead, SocketWrite);
+ if(err != noErr) {
+ failf(data, "SSL: SSLSetIOFuncs() failed: OSStatus %d", err);
+ return CURLE_SSL_CONNECT_ERROR;
+ }
+
+ /* pass the raw socket into the SSL layers */
+ /* We need to store the FD in a constant memory address, because
+ * SSLSetConnection() will not copy that address. I've found that
+ * conn->sock[sockindex] may change on its own. */
+ BACKEND->ssl_sockfd = sockfd;
+ err = SSLSetConnection(BACKEND->ssl_ctx, connssl);
+ if(err != noErr) {
+ failf(data, "SSL: SSLSetConnection() failed: %d", err);
+ return CURLE_SSL_CONNECT_ERROR;
+ }
+
+ connssl->connecting_state = ssl_connect_2;
+ return CURLE_OK;
+}
+
+static long pem_to_der(const char *in, unsigned char **out, size_t *outlen)
+{
+ char *sep_start, *sep_end, *cert_start, *cert_end;
+ size_t i, j, err;
+ size_t len;
+ unsigned char *b64;
+
+ /* Jump through the separators at the beginning of the certificate. */
+ sep_start = strstr(in, "-----");
+ if(sep_start == NULL)
+ return 0;
+ cert_start = strstr(sep_start + 1, "-----");
+ if(cert_start == NULL)
+ return -1;
+
+ cert_start += 5;
+
+ /* Find separator after the end of the certificate. */
+ cert_end = strstr(cert_start, "-----");
+ if(cert_end == NULL)
+ return -1;
+
+ sep_end = strstr(cert_end + 1, "-----");
+ if(sep_end == NULL)
+ return -1;
+ sep_end += 5;
+
+ len = cert_end - cert_start;
+ b64 = malloc(len + 1);
+ if(!b64)
+ return -1;
+
+ /* Create base64 string without linefeeds. */
+ for(i = 0, j = 0; i < len; i++) {
+ if(cert_start[i] != '\r' && cert_start[i] != '\n')
+ b64[j++] = cert_start[i];
+ }
+ b64[j] = '\0';
+
+ err = Curl_base64_decode((const char *)b64, out, outlen);
+ free(b64);
+ if(err) {
+ free(*out);
+ return -1;
+ }
+
+ return sep_end - in;
+}
+
+static int read_cert(const char *file, unsigned char **out, size_t *outlen)
+{
+ int fd;
+ ssize_t n, len = 0, cap = 512;
+ unsigned char buf[512], *data;
+
+ fd = open(file, 0);
+ if(fd < 0)
+ return -1;
+
+ data = malloc(cap);
+ if(!data) {
+ close(fd);
+ return -1;
+ }
+
+ for(;;) {
+ n = read(fd, buf, sizeof(buf));
+ if(n < 0) {
+ close(fd);
+ free(data);
+ return -1;
+ }
+ else if(n == 0) {
+ close(fd);
+ break;
+ }
+
+ if(len + n >= cap) {
+ cap *= 2;
+ data = Curl_saferealloc(data, cap);
+ if(!data) {
+ close(fd);
+ return -1;
+ }
+ }
+
+ memcpy(data + len, buf, n);
+ len += n;
+ }
+ data[len] = '\0';
+
+ *out = data;
+ *outlen = len;
+
+ return 0;
+}
+
+static int append_cert_to_array(struct Curl_easy *data,
+ unsigned char *buf, size_t buflen,
+ CFMutableArrayRef array)
+{
+ CFDataRef certdata = CFDataCreate(kCFAllocatorDefault, buf, buflen);
+ char *certp;
+ CURLcode result;
+ if(!certdata) {
+ failf(data, "SSL: failed to allocate array for CA certificate");
+ return CURLE_OUT_OF_MEMORY;
+ }
+
+ SecCertificateRef cacert =
+ SecCertificateCreateWithData(kCFAllocatorDefault, certdata);
+ CFRelease(certdata);
+ if(!cacert) {
+ failf(data, "SSL: failed to create SecCertificate from CA certificate");
+ return CURLE_SSL_CACERT_BADFILE;
+ }
+
+ /* Check if cacert is valid. */
+ result = CopyCertSubject(data, cacert, &certp);
+ switch(result) {
+ case CURLE_OK:
+ break;
+ case CURLE_PEER_FAILED_VERIFICATION:
+ return CURLE_SSL_CACERT_BADFILE;
+ case CURLE_OUT_OF_MEMORY:
+ default:
+ return result;
+ }
+ free(certp);
+
+ CFArrayAppendValue(array, cacert);
+ CFRelease(cacert);
+
+ return CURLE_OK;
+}
+
+static int verify_cert(const char *cafile, struct Curl_easy *data,
+ SSLContextRef ctx)
+{
+ int n = 0, rc;
+ long res;
+ unsigned char *certbuf, *der;
+ size_t buflen, derlen, offset = 0;
+
+ if(read_cert(cafile, &certbuf, &buflen) < 0) {
+ failf(data, "SSL: failed to read or invalid CA certificate");
+ return CURLE_SSL_CACERT_BADFILE;
+ }
+
+ /*
+ * Certbuf now contains the contents of the certificate file, which can be
+ * - a single DER certificate,
+ * - a single PEM certificate or
+ * - a bunch of PEM certificates (certificate bundle).
+ *
+ * Go through certbuf, and convert any PEM certificate in it into DER
+ * format.
+ */
+ CFMutableArrayRef array = CFArrayCreateMutable(kCFAllocatorDefault, 0,
+ &kCFTypeArrayCallBacks);
+ if(array == NULL) {
+ free(certbuf);
+ failf(data, "SSL: out of memory creating CA certificate array");
+ return CURLE_OUT_OF_MEMORY;
+ }
+
+ while(offset < buflen) {
+ n++;
+
+ /*
+ * Check if the certificate is in PEM format, and convert it to DER. If
+ * this fails, we assume the certificate is in DER format.
+ */
+ res = pem_to_der((const char *)certbuf + offset, &der, &derlen);
+ if(res < 0) {
+ free(certbuf);
+ CFRelease(array);
+ failf(data, "SSL: invalid CA certificate #%d (offset %d) in bundle",
+ n, offset);
+ return CURLE_SSL_CACERT_BADFILE;
+ }
+ offset += res;
+
+ if(res == 0 && offset == 0) {
+ /* This is not a PEM file, probably a certificate in DER format. */
+ rc = append_cert_to_array(data, certbuf, buflen, array);
+ free(certbuf);
+ if(rc != CURLE_OK) {
+ CFRelease(array);
+ return rc;
+ }
+ break;
+ }
+ else if(res == 0) {
+ /* No more certificates in the bundle. */
+ free(certbuf);
+ break;
+ }
+
+ rc = append_cert_to_array(data, der, derlen, array);
+ free(der);
+ if(rc != CURLE_OK) {
+ free(certbuf);
+ CFRelease(array);
+ return rc;
+ }
+ }
+
+ SecTrustRef trust;
+ OSStatus ret = SSLCopyPeerTrust(ctx, &trust);
+ if(trust == NULL) {
+ failf(data, "SSL: error getting certificate chain");
+ CFRelease(array);
+ return CURLE_PEER_FAILED_VERIFICATION;
+ }
+ else if(ret != noErr) {
+ CFRelease(array);
+ failf(data, "SSLCopyPeerTrust() returned error %d", ret);
+ return CURLE_PEER_FAILED_VERIFICATION;
+ }
+
+ ret = SecTrustSetAnchorCertificates(trust, array);
+ if(ret != noErr) {
+ CFRelease(array);
+ CFRelease(trust);
+ failf(data, "SecTrustSetAnchorCertificates() returned error %d", ret);
+ return CURLE_PEER_FAILED_VERIFICATION;
+ }
+ ret = SecTrustSetAnchorCertificatesOnly(trust, true);
+ if(ret != noErr) {
+ CFRelease(array);
+ CFRelease(trust);
+ failf(data, "SecTrustSetAnchorCertificatesOnly() returned error %d", ret);
+ return CURLE_PEER_FAILED_VERIFICATION;
+ }
+
+ SecTrustResultType trust_eval = 0;
+ ret = SecTrustEvaluate(trust, &trust_eval);
+ CFRelease(array);
+ CFRelease(trust);
+ if(ret != noErr) {
+ failf(data, "SecTrustEvaluate() returned error %d", ret);
+ return CURLE_PEER_FAILED_VERIFICATION;
+ }
+
+ switch(trust_eval) {
+ case kSecTrustResultUnspecified:
+ case kSecTrustResultProceed:
+ return CURLE_OK;
+
+ case kSecTrustResultRecoverableTrustFailure:
+ case kSecTrustResultDeny:
+ default:
+ failf(data, "SSL: certificate verification failed (result: %d)",
+ trust_eval);
+ return CURLE_PEER_FAILED_VERIFICATION;
+ }
+}
+
+#ifdef SECTRANSP_PINNEDPUBKEY
+static CURLcode pkp_pin_peer_pubkey(struct Curl_easy *data,
+ SSLContextRef ctx,
+ const char *pinnedpubkey)
+{ /* Scratch */
+ size_t pubkeylen, realpubkeylen, spkiHeaderLength = 24;
+ unsigned char *pubkey = NULL, *realpubkey = NULL;
+ const unsigned char *spkiHeader = NULL;
+ CFDataRef publicKeyBits = NULL;
+
+ /* Result is returned to caller */
+ CURLcode result = CURLE_SSL_PINNEDPUBKEYNOTMATCH;
+
+ /* if a path wasn't specified, don't pin */
+ if(!pinnedpubkey)
+ return CURLE_OK;
+
+
+ if(!ctx)
+ return result;
+
+ do {
+ SecTrustRef trust;
+ OSStatus ret = SSLCopyPeerTrust(ctx, &trust);
+ if(ret != noErr || trust == NULL)
+ break;
+
+ SecKeyRef keyRef = SecTrustCopyPublicKey(trust);
+ CFRelease(trust);
+ if(keyRef == NULL)
+ break;
+
+#ifdef SECTRANSP_PINNEDPUBKEY_V1
+
+ publicKeyBits = SecKeyCopyExternalRepresentation(keyRef, NULL);
+ CFRelease(keyRef);
+ if(publicKeyBits == NULL)
+ break;
+
+#elif SECTRANSP_PINNEDPUBKEY_V2
+
+ OSStatus success = SecItemExport(keyRef, kSecFormatOpenSSL, 0, NULL,
+ &publicKeyBits);
+ CFRelease(keyRef);
+ if(success != errSecSuccess || publicKeyBits == NULL)
+ break;
+
+#endif /* SECTRANSP_PINNEDPUBKEY_V2 */
+
+ pubkeylen = CFDataGetLength(publicKeyBits);
+ pubkey = (unsigned char *)CFDataGetBytePtr(publicKeyBits);
+
+ switch(pubkeylen) {
+ case 526:
+ /* 4096 bit RSA pubkeylen == 526 */
+ spkiHeader = rsa4096SpkiHeader;
+ break;
+ case 270:
+ /* 2048 bit RSA pubkeylen == 270 */
+ spkiHeader = rsa2048SpkiHeader;
+ break;
+#ifdef SECTRANSP_PINNEDPUBKEY_V1
+ case 65:
+ /* ecDSA secp256r1 pubkeylen == 65 */
+ spkiHeader = ecDsaSecp256r1SpkiHeader;
+ spkiHeaderLength = 26;
+ break;
+ case 97:
+ /* ecDSA secp384r1 pubkeylen == 97 */
+ spkiHeader = ecDsaSecp384r1SpkiHeader;
+ spkiHeaderLength = 23;
+ break;
+ default:
+ infof(data, "SSL: unhandled public key length: %d\n", pubkeylen);
+#elif SECTRANSP_PINNEDPUBKEY_V2
+ default:
+ /* ecDSA secp256r1 pubkeylen == 91 header already included?
+ * ecDSA secp384r1 header already included too
+ * we assume rest of algorithms do same, so do nothing
+ */
+ result = Curl_pin_peer_pubkey(data, pinnedpubkey, pubkey,
+ pubkeylen);
+#endif /* SECTRANSP_PINNEDPUBKEY_V2 */
+ continue; /* break from loop */
+ }
+
+ realpubkeylen = pubkeylen + spkiHeaderLength;
+ realpubkey = malloc(realpubkeylen);
+ if(!realpubkey)
+ break;
+
+ memcpy(realpubkey, spkiHeader, spkiHeaderLength);
+ memcpy(realpubkey + spkiHeaderLength, pubkey, pubkeylen);
+
+ result = Curl_pin_peer_pubkey(data, pinnedpubkey, realpubkey,
+ realpubkeylen);
+
+ } while(0);
+
+ Curl_safefree(realpubkey);
+ if(publicKeyBits != NULL)
+ CFRelease(publicKeyBits);
+
+ return result;
+}
+#endif /* SECTRANSP_PINNEDPUBKEY */
+
+static CURLcode
+sectransp_connect_step2(struct connectdata *conn, int sockindex)
+{
+ struct Curl_easy *data = conn->data;
+ struct ssl_connect_data *connssl = &conn->ssl[sockindex];
+ OSStatus err;
+ SSLCipherSuite cipher;
+ SSLProtocol protocol = 0;
+ const char * const hostname = SSL_IS_PROXY() ? conn->http_proxy.host.name :
+ conn->host.name;
+
+ DEBUGASSERT(ssl_connect_2 == connssl->connecting_state
+ || ssl_connect_2_reading == connssl->connecting_state
+ || ssl_connect_2_writing == connssl->connecting_state);
+
+ /* Here goes nothing: */
+ err = SSLHandshake(BACKEND->ssl_ctx);
+
+ if(err != noErr) {
+ switch(err) {
+ case errSSLWouldBlock: /* they're not done with us yet */
+ connssl->connecting_state = BACKEND->ssl_direction ?
+ ssl_connect_2_writing : ssl_connect_2_reading;
+ return CURLE_OK;
+
+ /* The below is errSSLServerAuthCompleted; it's not defined in
+ Leopard's headers */
+ case -9841:
+ if(SSL_CONN_CONFIG(CAfile) && SSL_CONN_CONFIG(verifypeer)) {
+ int res = verify_cert(SSL_CONN_CONFIG(CAfile), data,
+ BACKEND->ssl_ctx);
+ if(res != CURLE_OK)
+ return res;
+ }
+ /* the documentation says we need to call SSLHandshake() again */
+ return sectransp_connect_step2(conn, sockindex);
+
+ /* Problem with encrypt / decrypt */
+ case errSSLPeerDecodeError:
+ failf(data, "Decode failed");
+ break;
+ case errSSLDecryptionFail:
+ case errSSLPeerDecryptionFail:
+ failf(data, "Decryption failed");
+ break;
+ case errSSLPeerDecryptError:
+ failf(data, "A decryption error occurred");
+ break;
+ case errSSLBadCipherSuite:
+ failf(data, "A bad SSL cipher suite was encountered");
+ break;
+ case errSSLCrypto:
+ failf(data, "An underlying cryptographic error was encountered");
+ break;
+#if CURL_BUILD_MAC_10_11 || CURL_BUILD_IOS_9
+ case errSSLWeakPeerEphemeralDHKey:
+ failf(data, "Indicates a weak ephemeral Diffie-Hellman key");
+ break;
+#endif
+
+ /* Problem with the message record validation */
+ case errSSLBadRecordMac:
+ case errSSLPeerBadRecordMac:
+ failf(data, "A record with a bad message authentication code (MAC) "
+ "was encountered");
+ break;
+ case errSSLRecordOverflow:
+ case errSSLPeerRecordOverflow:
+ failf(data, "A record overflow occurred");
+ break;
+
+ /* Problem with zlib decompression */
+ case errSSLPeerDecompressFail:
+ failf(data, "Decompression failed");
+ break;
+
+ /* Problem with access */
+ case errSSLPeerAccessDenied:
+ failf(data, "Access was denied");
+ break;
+ case errSSLPeerInsufficientSecurity:
+ failf(data, "There is insufficient security for this operation");
+ break;
+
+ /* These are all certificate problems with the server: */
+ case errSSLXCertChainInvalid:
+ failf(data, "SSL certificate problem: Invalid certificate chain");
+ return CURLE_PEER_FAILED_VERIFICATION;
+ case errSSLUnknownRootCert:
+ failf(data, "SSL certificate problem: Untrusted root certificate");
+ return CURLE_PEER_FAILED_VERIFICATION;
+ case errSSLNoRootCert:
+ failf(data, "SSL certificate problem: No root certificate");
+ return CURLE_PEER_FAILED_VERIFICATION;
+ case errSSLCertNotYetValid:
+ failf(data, "SSL certificate problem: The certificate chain had a "
+ "certificate that is not yet valid");
+ return CURLE_PEER_FAILED_VERIFICATION;
+ case errSSLCertExpired:
+ case errSSLPeerCertExpired:
+ failf(data, "SSL certificate problem: Certificate chain had an "
+ "expired certificate");
+ return CURLE_PEER_FAILED_VERIFICATION;
+ case errSSLBadCert:
+ case errSSLPeerBadCert:
+ failf(data, "SSL certificate problem: Couldn't understand the server "
+ "certificate format");
+ return CURLE_PEER_FAILED_VERIFICATION;
+ case errSSLPeerUnsupportedCert:
+ failf(data, "SSL certificate problem: An unsupported certificate "
+ "format was encountered");
+ return CURLE_PEER_FAILED_VERIFICATION;
+ case errSSLPeerCertRevoked:
+ failf(data, "SSL certificate problem: The certificate was revoked");
+ return CURLE_PEER_FAILED_VERIFICATION;
+ case errSSLPeerCertUnknown:
+ failf(data, "SSL certificate problem: The certificate is unknown");
+ return CURLE_PEER_FAILED_VERIFICATION;
+
+ /* These are all certificate problems with the client: */
+ case errSecAuthFailed:
+ failf(data, "SSL authentication failed");
+ break;
+ case errSSLPeerHandshakeFail:
+ failf(data, "SSL peer handshake failed, the server most likely "
+ "requires a client certificate to connect");
+ break;
+ case errSSLPeerUnknownCA:
+ failf(data, "SSL server rejected the client certificate due to "
+ "the certificate being signed by an unknown certificate "
+ "authority");
+ break;
+
+ /* This error is raised if the server's cert didn't match the server's
+ host name: */
+ case errSSLHostNameMismatch:
+ failf(data, "SSL certificate peer verification failed, the "
+ "certificate did not match \"%s\"\n", conn->host.dispname);
+ return CURLE_PEER_FAILED_VERIFICATION;
+
+ /* Problem with SSL / TLS negotiation */
+ case errSSLNegotiation:
+ failf(data, "Could not negotiate an SSL cipher suite with the server");
+ break;
+ case errSSLBadConfiguration:
+ failf(data, "A configuration error occurred");
+ break;
+ case errSSLProtocol:
+ failf(data, "SSL protocol error");
+ break;
+ case errSSLPeerProtocolVersion:
+ failf(data, "A bad protocol version was encountered");
+ break;
+ case errSSLPeerNoRenegotiation:
+ failf(data, "No renegotiation is allowed");
+ break;
+
+ /* Generic handshake errors: */
+ case errSSLConnectionRefused:
+ failf(data, "Server dropped the connection during the SSL handshake");
+ break;
+ case errSSLClosedAbort:
+ failf(data, "Server aborted the SSL handshake");
+ break;
+ case errSSLClosedGraceful:
+ failf(data, "The connection closed gracefully");
+ break;
+ case errSSLClosedNoNotify:
+ failf(data, "The server closed the session with no notification");
+ break;
+ /* Sometimes paramErr happens with buggy ciphers: */
+ case paramErr:
+ case errSSLInternal:
+ case errSSLPeerInternalError:
+ failf(data, "Internal SSL engine error encountered during the "
+ "SSL handshake");
+ break;
+ case errSSLFatalAlert:
+ failf(data, "Fatal SSL engine error encountered during the SSL "
+ "handshake");
+ break;
+ /* Unclassified error */
+ case errSSLBufferOverflow:
+ failf(data, "An insufficient buffer was provided");
+ break;
+ case errSSLIllegalParam:
+ failf(data, "An illegal parameter was encountered");
+ break;
+ case errSSLModuleAttach:
+ failf(data, "Module attach failure");
+ break;
+ case errSSLSessionNotFound:
+ failf(data, "An attempt to restore an unknown session failed");
+ break;
+ case errSSLPeerExportRestriction:
+ failf(data, "An export restriction occurred");
+ break;
+ case errSSLPeerUserCancelled:
+ failf(data, "The user canceled the operation");
+ break;
+ case errSSLPeerUnexpectedMsg:
+ failf(data, "Peer rejected unexpected message");
+ break;
+#if CURL_BUILD_MAC_10_11 || CURL_BUILD_IOS_9
+ /* Treaing non-fatal error as fatal like before */
+ case errSSLClientHelloReceived:
+ failf(data, "A non-fatal result for providing a server name "
+ "indication");
+ break;
+#endif
+
+ /* Error codes defined in the enum but should never be returned.
+ We list them here just in case. */
+#if CURL_BUILD_MAC_10_6
+ /* Only returned when kSSLSessionOptionBreakOnCertRequested is set */
+ case errSSLClientCertRequested:
+ failf(data, "The server has requested a client certificate");
+ break;
+#endif
+#if CURL_BUILD_MAC_10_9
+ /* Alias for errSSLLast, end of error range */
+ case errSSLUnexpectedRecord:
+ failf(data, "Unexpected (skipped) record in DTLS");
+ break;
+#endif
+ default:
+ /* May also return codes listed in Security Framework Result Codes */
+ failf(data, "Unknown SSL protocol error in connection to %s:%d",
+ hostname, err);
+ break;
+ }
+ return CURLE_SSL_CONNECT_ERROR;
+ }
+ else {
+ /* we have been connected fine, we're not waiting for anything else. */
+ connssl->connecting_state = ssl_connect_3;
+
+#ifdef SECTRANSP_PINNEDPUBKEY
+ if(data->set.str[STRING_SSL_PINNEDPUBLICKEY_ORIG]) {
+ CURLcode result = pkp_pin_peer_pubkey(data, BACKEND->ssl_ctx,
+ data->set.str[STRING_SSL_PINNEDPUBLICKEY_ORIG]);
+ if(result) {
+ failf(data, "SSL: public key does not match pinned public key!");
+ return result;
+ }
+ }
+#endif /* SECTRANSP_PINNEDPUBKEY */
+
+ /* Informational message */
+ (void)SSLGetNegotiatedCipher(BACKEND->ssl_ctx, &cipher);
+ (void)SSLGetNegotiatedProtocolVersion(BACKEND->ssl_ctx, &protocol);
+ switch(protocol) {
+ case kSSLProtocol2:
+ infof(data, "SSL 2.0 connection using %s\n",
+ SSLCipherNameForNumber(cipher));
+ break;
+ case kSSLProtocol3:
+ infof(data, "SSL 3.0 connection using %s\n",
+ SSLCipherNameForNumber(cipher));
+ break;
+ case kTLSProtocol1:
+ infof(data, "TLS 1.0 connection using %s\n",
+ TLSCipherNameForNumber(cipher));
+ break;
+#if CURL_BUILD_MAC_10_8 || CURL_BUILD_IOS
+ case kTLSProtocol11:
+ infof(data, "TLS 1.1 connection using %s\n",
+ TLSCipherNameForNumber(cipher));
+ break;
+ case kTLSProtocol12:
+ infof(data, "TLS 1.2 connection using %s\n",
+ TLSCipherNameForNumber(cipher));
+ break;
+#endif /* CURL_BUILD_MAC_10_8 || CURL_BUILD_IOS */
+#if CURL_BUILD_MAC_10_13 || CURL_BUILD_IOS_11
+ case kTLSProtocol13:
+ infof(data, "TLS 1.3 connection using %s\n",
+ TLSCipherNameForNumber(cipher));
+ break;
+#endif /* CURL_BUILD_MAC_10_13 || CURL_BUILD_IOS_11 */
+ default:
+ infof(data, "Unknown protocol connection\n");
+ break;
+ }
+
+#if(CURL_BUILD_MAC_10_13 || CURL_BUILD_IOS_11) && HAVE_BUILTIN_AVAILABLE == 1
+ if(conn->bits.tls_enable_alpn) {
+ if(__builtin_available(macOS 10.13.4, iOS 11, *)) {
+ CFArrayRef alpnArr = NULL;
+ CFStringRef chosenProtocol = NULL;
+ err = SSLCopyALPNProtocols(BACKEND->ssl_ctx, &alpnArr);
+
+ if(err == noErr && alpnArr && CFArrayGetCount(alpnArr) >= 1)
+ chosenProtocol = CFArrayGetValueAtIndex(alpnArr, 0);
+
+#ifdef USE_NGHTTP2
+ if(chosenProtocol &&
+ !CFStringCompare(chosenProtocol, CFSTR(NGHTTP2_PROTO_VERSION_ID),
+ 0)) {
+ conn->negnpn = CURL_HTTP_VERSION_2;
+ }
+ else
+#endif
+ if(chosenProtocol &&
+ !CFStringCompare(chosenProtocol, CFSTR(ALPN_HTTP_1_1), 0)) {
+ conn->negnpn = CURL_HTTP_VERSION_1_1;
+ }
+ else
+ infof(data, "ALPN, server did not agree to a protocol\n");
+
+ /* chosenProtocol is a reference to the string within alpnArr
+ and doesn't need to be freed separately */
+ if(alpnArr)
+ CFRelease(alpnArr);
+ }
+ }
+#endif
+
+ return CURLE_OK;
+ }
+}
+
+#ifndef CURL_DISABLE_VERBOSE_STRINGS
+/* This should be called during step3 of the connection at the earliest */
+static void
+show_verbose_server_cert(struct connectdata *conn,
+ int sockindex)
+{
+ struct Curl_easy *data = conn->data;
+ struct ssl_connect_data *connssl = &conn->ssl[sockindex];
+ CFArrayRef server_certs = NULL;
+ SecCertificateRef server_cert;
+ OSStatus err;
+ CFIndex i, count;
+ SecTrustRef trust = NULL;
+
+ if(!BACKEND->ssl_ctx)
+ return;
+
+#if CURL_BUILD_MAC_10_7 || CURL_BUILD_IOS
+#if CURL_BUILD_IOS
+#pragma unused(server_certs)
+ err = SSLCopyPeerTrust(BACKEND->ssl_ctx, &trust);
+ /* For some reason, SSLCopyPeerTrust() can return noErr and yet return
+ a null trust, so be on guard for that: */
+ if(err == noErr && trust) {
+ count = SecTrustGetCertificateCount(trust);
+ for(i = 0L ; i < count ; i++) {
+ CURLcode result;
+ char *certp;
+ server_cert = SecTrustGetCertificateAtIndex(trust, i);
+ result = CopyCertSubject(data, server_cert, &certp);
+ if(!result) {
+ infof(data, "Server certificate: %s\n", certp);
+ free(certp);
+ }
+ }
+ CFRelease(trust);
+ }
+#else
+ /* SSLCopyPeerCertificates() is deprecated as of Mountain Lion.
+ The function SecTrustGetCertificateAtIndex() is officially present
+ in Lion, but it is unfortunately also present in Snow Leopard as
+ private API and doesn't work as expected. So we have to look for
+ a different symbol to make sure this code is only executed under
+ Lion or later. */
+ if(SecTrustEvaluateAsync != NULL) {
+#pragma unused(server_certs)
+ err = SSLCopyPeerTrust(BACKEND->ssl_ctx, &trust);
+ /* For some reason, SSLCopyPeerTrust() can return noErr and yet return
+ a null trust, so be on guard for that: */
+ if(err == noErr && trust) {
+ count = SecTrustGetCertificateCount(trust);
+ for(i = 0L ; i < count ; i++) {
+ char *certp;
+ CURLcode result;
+ server_cert = SecTrustGetCertificateAtIndex(trust, i);
+ result = CopyCertSubject(data, server_cert, &certp);
+ if(!result) {
+ infof(data, "Server certificate: %s\n", certp);
+ free(certp);
+ }
+ }
+ CFRelease(trust);
+ }
+ }
+ else {
+#if CURL_SUPPORT_MAC_10_8
+ err = SSLCopyPeerCertificates(BACKEND->ssl_ctx, &server_certs);
+ /* Just in case SSLCopyPeerCertificates() returns null too... */
+ if(err == noErr && server_certs) {
+ count = CFArrayGetCount(server_certs);
+ for(i = 0L ; i < count ; i++) {
+ char *certp;
+ CURLcode result;
+ server_cert = (SecCertificateRef)CFArrayGetValueAtIndex(server_certs,
+ i);
+ result = CopyCertSubject(data, server_cert, &certp);
+ if(!result) {
+ infof(data, "Server certificate: %s\n", certp);
+ free(certp);
+ }
+ }
+ CFRelease(server_certs);
+ }
+#endif /* CURL_SUPPORT_MAC_10_8 */
+ }
+#endif /* CURL_BUILD_IOS */
+#else
+#pragma unused(trust)
+ err = SSLCopyPeerCertificates(BACKEND->ssl_ctx, &server_certs);
+ if(err == noErr) {
+ count = CFArrayGetCount(server_certs);
+ for(i = 0L ; i < count ; i++) {
+ CURLcode result;
+ char *certp;
+ server_cert = (SecCertificateRef)CFArrayGetValueAtIndex(server_certs, i);
+ result = CopyCertSubject(data, server_cert, &certp);
+ if(!result) {
+ infof(data, "Server certificate: %s\n", certp);
+ free(certp);
+ }
+ }
+ CFRelease(server_certs);
+ }
+#endif /* CURL_BUILD_MAC_10_7 || CURL_BUILD_IOS */
+}
+#endif /* !CURL_DISABLE_VERBOSE_STRINGS */
+
+static CURLcode
+sectransp_connect_step3(struct connectdata *conn,
+ int sockindex)
+{
+ struct Curl_easy *data = conn->data;
+ struct ssl_connect_data *connssl = &conn->ssl[sockindex];
+
+ /* There is no step 3!
+ * Well, okay, if verbose mode is on, let's print the details of the
+ * server certificates. */
+#ifndef CURL_DISABLE_VERBOSE_STRINGS
+ if(data->set.verbose)
+ show_verbose_server_cert(conn, sockindex);
+#endif
+
+ connssl->connecting_state = ssl_connect_done;
+ return CURLE_OK;
+}
+
+static Curl_recv sectransp_recv;
+static Curl_send sectransp_send;
+
+static CURLcode
+sectransp_connect_common(struct connectdata *conn,
+ int sockindex,
+ bool nonblocking,
+ bool *done)
+{
+ CURLcode result;
+ struct Curl_easy *data = conn->data;
+ struct ssl_connect_data *connssl = &conn->ssl[sockindex];
+ curl_socket_t sockfd = conn->sock[sockindex];
+ long timeout_ms;
+ int what;
+
+ /* check if the connection has already been established */
+ if(ssl_connection_complete == connssl->state) {
+ *done = TRUE;
+ return CURLE_OK;
+ }
+
+ if(ssl_connect_1 == connssl->connecting_state) {
+ /* Find out how much more time we're allowed */
+ timeout_ms = Curl_timeleft(data, NULL, TRUE);
+
+ if(timeout_ms < 0) {
+ /* no need to continue if time already is up */
+ failf(data, "SSL connection timeout");
+ return CURLE_OPERATION_TIMEDOUT;
+ }
+
+ result = sectransp_connect_step1(conn, sockindex);
+ if(result)
+ return result;
+ }
+
+ while(ssl_connect_2 == connssl->connecting_state ||
+ ssl_connect_2_reading == connssl->connecting_state ||
+ ssl_connect_2_writing == connssl->connecting_state) {
+
+ /* check allowed time left */
+ timeout_ms = Curl_timeleft(data, NULL, TRUE);
+
+ if(timeout_ms < 0) {
+ /* no need to continue if time already is up */
+ failf(data, "SSL connection timeout");
+ return CURLE_OPERATION_TIMEDOUT;
+ }
+
+ /* if ssl is expecting something, check if it's available. */
+ if(connssl->connecting_state == ssl_connect_2_reading ||
+ connssl->connecting_state == ssl_connect_2_writing) {
+
+ curl_socket_t writefd = ssl_connect_2_writing ==
+ connssl->connecting_state?sockfd:CURL_SOCKET_BAD;
+ curl_socket_t readfd = ssl_connect_2_reading ==
+ connssl->connecting_state?sockfd:CURL_SOCKET_BAD;
+
+ what = Curl_socket_check(readfd, CURL_SOCKET_BAD, writefd,
+ nonblocking?0:timeout_ms);
+ if(what < 0) {
+ /* fatal error */
+ failf(data, "select/poll on SSL socket, errno: %d", SOCKERRNO);
+ return CURLE_SSL_CONNECT_ERROR;
+ }
+ else if(0 == what) {
+ if(nonblocking) {
+ *done = FALSE;
+ return CURLE_OK;
+ }
+ else {
+ /* timeout */
+ failf(data, "SSL connection timeout");
+ return CURLE_OPERATION_TIMEDOUT;
+ }
+ }
+ /* socket is readable or writable */
+ }
+
+ /* Run transaction, and return to the caller if it failed or if this
+ * connection is done nonblocking and this loop would execute again. This
+ * permits the owner of a multi handle to abort a connection attempt
+ * before step2 has completed while ensuring that a client using select()
+ * or epoll() will always have a valid fdset to wait on.
+ */
+ result = sectransp_connect_step2(conn, sockindex);
+ if(result || (nonblocking &&
+ (ssl_connect_2 == connssl->connecting_state ||
+ ssl_connect_2_reading == connssl->connecting_state ||
+ ssl_connect_2_writing == connssl->connecting_state)))
+ return result;
+
+ } /* repeat step2 until all transactions are done. */
+
+
+ if(ssl_connect_3 == connssl->connecting_state) {
+ result = sectransp_connect_step3(conn, sockindex);
+ if(result)
+ return result;
+ }
+
+ if(ssl_connect_done == connssl->connecting_state) {
+ connssl->state = ssl_connection_complete;
+ conn->recv[sockindex] = sectransp_recv;
+ conn->send[sockindex] = sectransp_send;
+ *done = TRUE;
+ }
+ else
+ *done = FALSE;
+
+ /* Reset our connect state machine */
+ connssl->connecting_state = ssl_connect_1;
+
+ return CURLE_OK;
+}
+
+static CURLcode Curl_sectransp_connect_nonblocking(struct connectdata *conn,
+ int sockindex, bool *done)
+{
+ return sectransp_connect_common(conn, sockindex, TRUE, done);
+}
+
+static CURLcode Curl_sectransp_connect(struct connectdata *conn, int sockindex)
+{
+ CURLcode result;
+ bool done = FALSE;
+
+ result = sectransp_connect_common(conn, sockindex, FALSE, &done);
+
+ if(result)
+ return result;
+
+ DEBUGASSERT(done);
+
+ return CURLE_OK;
+}
+
+static void Curl_sectransp_close(struct connectdata *conn, int sockindex)
+{
+ struct ssl_connect_data *connssl = &conn->ssl[sockindex];
+
+ if(BACKEND->ssl_ctx) {
+ (void)SSLClose(BACKEND->ssl_ctx);
+#if CURL_BUILD_MAC_10_8 || CURL_BUILD_IOS
+ if(SSLCreateContext != NULL)
+ CFRelease(BACKEND->ssl_ctx);
+#if CURL_SUPPORT_MAC_10_8
+ else
+ (void)SSLDisposeContext(BACKEND->ssl_ctx);
+#endif /* CURL_SUPPORT_MAC_10_8 */
+#else
+ (void)SSLDisposeContext(BACKEND->ssl_ctx);
+#endif /* CURL_BUILD_MAC_10_8 || CURL_BUILD_IOS */
+ BACKEND->ssl_ctx = NULL;
+ }
+ BACKEND->ssl_sockfd = 0;
+}
+
+static int Curl_sectransp_shutdown(struct connectdata *conn, int sockindex)
+{
+ struct ssl_connect_data *connssl = &conn->ssl[sockindex];
+ struct Curl_easy *data = conn->data;
+ ssize_t nread;
+ int what;
+ int rc;
+ char buf[120];
+
+ if(!BACKEND->ssl_ctx)
+ return 0;
+
+ if(data->set.ftp_ccc != CURLFTPSSL_CCC_ACTIVE)
+ return 0;
+
+ Curl_sectransp_close(conn, sockindex);
+
+ rc = 0;
+
+ what = SOCKET_READABLE(conn->sock[sockindex], SSL_SHUTDOWN_TIMEOUT);
+
+ for(;;) {
+ if(what < 0) {
+ /* anything that gets here is fatally bad */
+ failf(data, "select/poll on SSL socket, errno: %d", SOCKERRNO);
+ rc = -1;
+ break;
+ }
+
+ if(!what) { /* timeout */
+ failf(data, "SSL shutdown timeout");
+ break;
+ }
+
+ /* Something to read, let's do it and hope that it is the close
+ notify alert from the server. No way to SSL_Read now, so use read(). */
+
+ nread = read(conn->sock[sockindex], buf, sizeof(buf));
+
+ if(nread < 0) {
+ failf(data, "read: %s", strerror(errno));
+ rc = -1;
+ }
+
+ if(nread <= 0)
+ break;
+
+ what = SOCKET_READABLE(conn->sock[sockindex], 0);
+ }
+
+ return rc;
+}
+
+static void Curl_sectransp_session_free(void *ptr)
+{
+ /* ST, as of iOS 5 and Mountain Lion, has no public method of deleting a
+ cached session ID inside the Security framework. There is a private
+ function that does this, but I don't want to have to explain to you why I
+ got your application rejected from the App Store due to the use of a
+ private API, so the best we can do is free up our own char array that we
+ created way back in sectransp_connect_step1... */
+ Curl_safefree(ptr);
+}
+
+static size_t Curl_sectransp_version(char *buffer, size_t size)
+{
+ return msnprintf(buffer, size, "SecureTransport");
+}
+
+/*
+ * This function uses SSLGetSessionState to determine connection status.
+ *
+ * Return codes:
+ * 1 means the connection is still in place
+ * 0 means the connection has been closed
+ * -1 means the connection status is unknown
+ */
+static int Curl_sectransp_check_cxn(struct connectdata *conn)
+{
+ struct ssl_connect_data *connssl = &conn->ssl[FIRSTSOCKET];
+ OSStatus err;
+ SSLSessionState state;
+
+ if(BACKEND->ssl_ctx) {
+ err = SSLGetSessionState(BACKEND->ssl_ctx, &state);
+ if(err == noErr)
+ return state == kSSLConnected || state == kSSLHandshake;
+ return -1;
+ }
+ return 0;
+}
+
+static bool Curl_sectransp_data_pending(const struct connectdata *conn,
+ int connindex)
+{
+ const struct ssl_connect_data *connssl = &conn->ssl[connindex];
+ OSStatus err;
+ size_t buffer;
+
+ if(BACKEND->ssl_ctx) { /* SSL is in use */
+ err = SSLGetBufferedReadSize(BACKEND->ssl_ctx, &buffer);
+ if(err == noErr)
+ return buffer > 0UL;
+ return false;
+ }
+ else
+ return false;
+}
+
+static CURLcode Curl_sectransp_random(struct Curl_easy *data UNUSED_PARAM,
+ unsigned char *entropy, size_t length)
+{
+ /* arc4random_buf() isn't available on cats older than Lion, so let's
+ do this manually for the benefit of the older cats. */
+ size_t i;
+ u_int32_t random_number = 0;
+
+ (void)data;
+
+ for(i = 0 ; i < length ; i++) {
+ if(i % sizeof(u_int32_t) == 0)
+ random_number = arc4random();
+ entropy[i] = random_number & 0xFF;
+ random_number >>= 8;
+ }
+ i = random_number = 0;
+ return CURLE_OK;
+}
+
+static CURLcode Curl_sectransp_md5sum(unsigned char *tmp, /* input */
+ size_t tmplen,
+ unsigned char *md5sum, /* output */
+ size_t md5len)
+{
+ (void)md5len;
+ (void)CC_MD5(tmp, (CC_LONG)tmplen, md5sum);
+ return CURLE_OK;
+}
+
+static CURLcode Curl_sectransp_sha256sum(const unsigned char *tmp, /* input */
+ size_t tmplen,
+ unsigned char *sha256sum, /* output */
+ size_t sha256len)
+{
+ assert(sha256len >= CURL_SHA256_DIGEST_LENGTH);
+ (void)CC_SHA256(tmp, (CC_LONG)tmplen, sha256sum);
+ return CURLE_OK;
+}
+
+static bool Curl_sectransp_false_start(void)
+{
+#if CURL_BUILD_MAC_10_9 || CURL_BUILD_IOS_7
+ if(SSLSetSessionOption != NULL)
+ return TRUE;
+#endif
+ return FALSE;
+}
+
+static ssize_t sectransp_send(struct connectdata *conn,
+ int sockindex,
+ const void *mem,
+ size_t len,
+ CURLcode *curlcode)
+{
+ /*struct Curl_easy *data = conn->data;*/
+ struct ssl_connect_data *connssl = &conn->ssl[sockindex];
+ size_t processed = 0UL;
+ OSStatus err;
+
+ /* The SSLWrite() function works a little differently than expected. The
+ fourth argument (processed) is currently documented in Apple's
+ documentation as: "On return, the length, in bytes, of the data actually
+ written."
+
+ Now, one could interpret that as "written to the socket," but actually,
+ it returns the amount of data that was written to a buffer internal to
+ the SSLContextRef instead. So it's possible for SSLWrite() to return
+ errSSLWouldBlock and a number of bytes "written" because those bytes were
+ encrypted and written to a buffer, not to the socket.
+
+ So if this happens, then we need to keep calling SSLWrite() over and
+ over again with no new data until it quits returning errSSLWouldBlock. */
+
+ /* Do we have buffered data to write from the last time we were called? */
+ if(BACKEND->ssl_write_buffered_length) {
+ /* Write the buffered data: */
+ err = SSLWrite(BACKEND->ssl_ctx, NULL, 0UL, &processed);
+ switch(err) {
+ case noErr:
+ /* processed is always going to be 0 because we didn't write to
+ the buffer, so return how much was written to the socket */
+ processed = BACKEND->ssl_write_buffered_length;
+ BACKEND->ssl_write_buffered_length = 0UL;
+ break;
+ case errSSLWouldBlock: /* argh, try again */
+ *curlcode = CURLE_AGAIN;
+ return -1L;
+ default:
+ failf(conn->data, "SSLWrite() returned error %d", err);
+ *curlcode = CURLE_SEND_ERROR;
+ return -1L;
+ }
+ }
+ else {
+ /* We've got new data to write: */
+ err = SSLWrite(BACKEND->ssl_ctx, mem, len, &processed);
+ if(err != noErr) {
+ switch(err) {
+ case errSSLWouldBlock:
+ /* Data was buffered but not sent, we have to tell the caller
+ to try sending again, and remember how much was buffered */
+ BACKEND->ssl_write_buffered_length = len;
+ *curlcode = CURLE_AGAIN;
+ return -1L;
+ default:
+ failf(conn->data, "SSLWrite() returned error %d", err);
+ *curlcode = CURLE_SEND_ERROR;
+ return -1L;
+ }
+ }
+ }
+ return (ssize_t)processed;
+}
+
+static ssize_t sectransp_recv(struct connectdata *conn,
+ int num,
+ char *buf,
+ size_t buffersize,
+ CURLcode *curlcode)
+{
+ /*struct Curl_easy *data = conn->data;*/
+ struct ssl_connect_data *connssl = &conn->ssl[num];
+ size_t processed = 0UL;
+ OSStatus err = SSLRead(BACKEND->ssl_ctx, buf, buffersize, &processed);
+
+ if(err != noErr) {
+ switch(err) {
+ case errSSLWouldBlock: /* return how much we read (if anything) */
+ if(processed)
+ return (ssize_t)processed;
+ *curlcode = CURLE_AGAIN;
+ return -1L;
+ break;
+
+ /* errSSLClosedGraceful - server gracefully shut down the SSL session
+ errSSLClosedNoNotify - server hung up on us instead of sending a
+ closure alert notice, read() is returning 0
+ Either way, inform the caller that the server disconnected. */
+ case errSSLClosedGraceful:
+ case errSSLClosedNoNotify:
+ *curlcode = CURLE_OK;
+ return -1L;
+ break;
+
+ default:
+ failf(conn->data, "SSLRead() return error %d", err);
+ *curlcode = CURLE_RECV_ERROR;
+ return -1L;
+ break;
+ }
+ }
+ return (ssize_t)processed;
+}
+
+static void *Curl_sectransp_get_internals(struct ssl_connect_data *connssl,
+ CURLINFO info UNUSED_PARAM)
+{
+ (void)info;
+ return BACKEND->ssl_ctx;
+}
+
+const struct Curl_ssl Curl_ssl_sectransp = {
+ { CURLSSLBACKEND_SECURETRANSPORT, "secure-transport" }, /* info */
+
+#ifdef SECTRANSP_PINNEDPUBKEY
+ SSLSUPP_PINNEDPUBKEY,
+#else
+ 0,
+#endif /* SECTRANSP_PINNEDPUBKEY */
+
+ sizeof(struct ssl_backend_data),
+
+ Curl_none_init, /* init */
+ Curl_none_cleanup, /* cleanup */
+ Curl_sectransp_version, /* version */
+ Curl_sectransp_check_cxn, /* check_cxn */
+ Curl_sectransp_shutdown, /* shutdown */
+ Curl_sectransp_data_pending, /* data_pending */
+ Curl_sectransp_random, /* random */
+ Curl_none_cert_status_request, /* cert_status_request */
+ Curl_sectransp_connect, /* connect */
+ Curl_sectransp_connect_nonblocking, /* connect_nonblocking */
+ Curl_sectransp_get_internals, /* get_internals */
+ Curl_sectransp_close, /* close_one */
+ Curl_none_close_all, /* close_all */
+ Curl_sectransp_session_free, /* session_free */
+ Curl_none_set_engine, /* set_engine */
+ Curl_none_set_engine_default, /* set_engine_default */
+ Curl_none_engines_list, /* engines_list */
+ Curl_sectransp_false_start, /* false_start */
+ Curl_sectransp_md5sum, /* md5sum */
+ Curl_sectransp_sha256sum /* sha256sum */
+};
+
+#ifdef __clang__
+#pragma clang diagnostic pop
+#endif
+
+#endif /* USE_SECTRANSP */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 02:37:07 +0000