[164] | 1 | /* io.c
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| 2 | *
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| 3 | * Copyright (C) 2006-2015 wolfSSL Inc.
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| 4 | *
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| 5 | * This file is part of wolfSSL. (formerly known as CyaSSL)
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| 6 | *
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| 7 | * wolfSSL is free software; you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation; either version 2 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * wolfSSL is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with this program; if not, write to the Free Software
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| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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| 20 | */
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| 21 |
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| 22 |
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| 23 | #ifdef HAVE_CONFIG_H
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| 24 | #include <config.h>
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| 25 | #endif
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| 26 |
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| 27 | #include <wolfssl/wolfcrypt/settings.h>
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| 28 |
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| 29 | #ifndef WOLFCRYPT_ONLY
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| 30 |
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| 31 | #ifdef _WIN32_WCE
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| 32 | /* On WinCE winsock2.h must be included before windows.h for socket stuff */
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| 33 | #include <winsock2.h>
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| 34 | #endif
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| 35 |
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| 36 | #include <wolfssl/internal.h>
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| 37 | #include <wolfssl/error-ssl.h>
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| 38 |
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| 39 |
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| 40 | /* if user writes own I/O callbacks they can define WOLFSSL_USER_IO to remove
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| 41 | automatic setting of default I/O functions EmbedSend() and EmbedReceive()
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| 42 | but they'll still need SetCallback xxx() at end of file
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| 43 | */
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| 44 | #ifndef WOLFSSL_USER_IO
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| 45 |
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| 46 | #ifdef HAVE_LIBZ
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| 47 | #include "zlib.h"
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| 48 | #endif
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| 49 |
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| 50 | #ifndef USE_WINDOWS_API
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| 51 | #ifdef WOLFSSL_LWIP
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| 52 | /* lwIP needs to be configured to use sockets API in this mode */
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| 53 | /* LWIP_SOCKET 1 in lwip/opt.h or in build */
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| 54 | #include "lwip/sockets.h"
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| 55 | #include <errno.h>
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| 56 | #ifndef LWIP_PROVIDE_ERRNO
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| 57 | #define LWIP_PROVIDE_ERRNO 1
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| 58 | #endif
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| 59 | #elif defined(FREESCALE_MQX)
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| 60 | #include <posix.h>
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| 61 | #include <rtcs.h>
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| 62 | #elif defined(FREESCALE_KSDK_MQX)
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| 63 | #include <rtcs.h>
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| 64 | #elif defined(WOLFSSL_MDK_ARM) || defined(WOLFSSL_KEIL_TCP_NET)
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| 65 | #if defined(WOLFSSL_MDK5) || defined(WOLFSSL_KEIL_TCP_NET)
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| 66 | #include "cmsis_os.h"
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| 67 | #else
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| 68 | #include <rtl.h>
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| 69 | #endif
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| 70 | #include "errno.h"
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| 71 | #define SOCKET_T int
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| 72 | #include "rl_net.h"
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| 73 | #elif defined(WOLFSSL_TIRTOS)
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| 74 | #include <sys/socket.h>
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| 75 | #elif defined(FREERTOS_TCP)
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| 76 | #include "FreeRTOS_Sockets.h"
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| 77 | #elif defined(WOLFSSL_IAR_ARM)
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| 78 | /* nothing */
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| 79 | #elif defined(WOLFSSL_VXWORKS)
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| 80 | #include <sockLib.h>
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| 81 | #include <errno.h>
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| 82 | #else
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| 83 | #include <sys/types.h>
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| 84 | #include <errno.h>
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| 85 | #ifndef EBSNET
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| 86 | #include <unistd.h>
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| 87 | #endif
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| 88 | #include <fcntl.h>
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| 89 | #if !(defined(DEVKITPRO) || defined(HAVE_RTP_SYS) || defined(EBSNET)) \
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| 90 | && !(defined(WOLFSSL_PICOTCP))
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| 91 | #include <sys/socket.h>
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| 92 | #include <arpa/inet.h>
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| 93 | #include <netinet/in.h>
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| 94 | #include <netdb.h>
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| 95 | #ifdef __PPU
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| 96 | #include <netex/errno.h>
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| 97 | #else
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| 98 | #include <sys/ioctl.h>
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| 99 | #endif
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| 100 | #endif
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| 101 | #ifdef HAVE_RTP_SYS
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| 102 | #include <socket.h>
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| 103 | #endif
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| 104 | #ifdef EBSNET
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| 105 | #include "rtipapi.h" /* errno */
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| 106 | #include "socket.h"
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| 107 | #endif
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| 108 | #endif
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| 109 | #endif /* USE_WINDOWS_API */
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| 110 |
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| 111 | #ifdef __sun
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| 112 | #include <sys/filio.h>
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| 113 | #endif
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| 114 |
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| 115 | #ifdef USE_WINDOWS_API
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| 116 | /* no epipe yet */
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| 117 | #ifndef WSAEPIPE
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| 118 | #define WSAEPIPE -12345
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| 119 | #endif
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| 120 | #define SOCKET_EWOULDBLOCK WSAEWOULDBLOCK
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| 121 | #define SOCKET_EAGAIN WSAETIMEDOUT
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| 122 | #define SOCKET_ECONNRESET WSAECONNRESET
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| 123 | #define SOCKET_EINTR WSAEINTR
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| 124 | #define SOCKET_EPIPE WSAEPIPE
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| 125 | #define SOCKET_ECONNREFUSED WSAENOTCONN
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| 126 | #define SOCKET_ECONNABORTED WSAECONNABORTED
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| 127 | #define close(s) closesocket(s)
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| 128 | #elif defined(__PPU)
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| 129 | #define SOCKET_EWOULDBLOCK SYS_NET_EWOULDBLOCK
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| 130 | #define SOCKET_EAGAIN SYS_NET_EAGAIN
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| 131 | #define SOCKET_ECONNRESET SYS_NET_ECONNRESET
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| 132 | #define SOCKET_EINTR SYS_NET_EINTR
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| 133 | #define SOCKET_EPIPE SYS_NET_EPIPE
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| 134 | #define SOCKET_ECONNREFUSED SYS_NET_ECONNREFUSED
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| 135 | #define SOCKET_ECONNABORTED SYS_NET_ECONNABORTED
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| 136 | #elif defined(FREESCALE_MQX) || defined(FREESCALE_KSDK_MQX)
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| 137 | #if MQX_USE_IO_OLD
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| 138 | /* RTCS old I/O doesn't have an EWOULDBLOCK */
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| 139 | #define SOCKET_EWOULDBLOCK EAGAIN
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| 140 | #define SOCKET_EAGAIN EAGAIN
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| 141 | #define SOCKET_ECONNRESET RTCSERR_TCP_CONN_RESET
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| 142 | #define SOCKET_EINTR EINTR
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| 143 | #define SOCKET_EPIPE EPIPE
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| 144 | #define SOCKET_ECONNREFUSED RTCSERR_TCP_CONN_REFUSED
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| 145 | #define SOCKET_ECONNABORTED RTCSERR_TCP_CONN_ABORTED
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| 146 | #else
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| 147 | #define SOCKET_EWOULDBLOCK NIO_EWOULDBLOCK
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| 148 | #define SOCKET_EAGAIN NIO_EAGAIN
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| 149 | #define SOCKET_ECONNRESET NIO_ECONNRESET
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| 150 | #define SOCKET_EINTR NIO_EINTR
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| 151 | #define SOCKET_EPIPE NIO_EPIPE
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| 152 | #define SOCKET_ECONNREFUSED NIO_ECONNREFUSED
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| 153 | #define SOCKET_ECONNABORTED NIO_ECONNABORTED
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| 154 | #endif
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| 155 | #elif defined(WOLFSSL_MDK_ARM)|| defined(WOLFSSL_KEIL_TCP_NET)
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| 156 | #if defined(WOLFSSL_MDK5)|| defined(WOLFSSL_KEIL_TCP_NET)
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| 157 | #define SOCKET_EWOULDBLOCK BSD_ERROR_WOULDBLOCK
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| 158 | #define SOCKET_EAGAIN BSD_ERROR_LOCKED
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| 159 | #define SOCKET_ECONNRESET BSD_ERROR_CLOSED
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| 160 | #define SOCKET_EINTR BSD_ERROR
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| 161 | #define SOCKET_EPIPE BSD_ERROR
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| 162 | #define SOCKET_ECONNREFUSED BSD_ERROR
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| 163 | #define SOCKET_ECONNABORTED BSD_ERROR
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| 164 | #else
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| 165 | #define SOCKET_EWOULDBLOCK SCK_EWOULDBLOCK
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| 166 | #define SOCKET_EAGAIN SCK_ELOCKED
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| 167 | #define SOCKET_ECONNRESET SCK_ECLOSED
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| 168 | #define SOCKET_EINTR SCK_ERROR
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| 169 | #define SOCKET_EPIPE SCK_ERROR
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| 170 | #define SOCKET_ECONNREFUSED SCK_ERROR
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| 171 | #define SOCKET_ECONNABORTED SCK_ERROR
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| 172 | #endif
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| 173 | #elif defined(WOLFSSL_PICOTCP)
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| 174 | #define SOCKET_EWOULDBLOCK PICO_ERR_EAGAIN
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| 175 | #define SOCKET_EAGAIN PICO_ERR_EAGAIN
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| 176 | #define SOCKET_ECONNRESET PICO_ERR_ECONNRESET
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| 177 | #define SOCKET_EINTR PICO_ERR_EINTR
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| 178 | #define SOCKET_EPIPE PICO_ERR_EIO
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| 179 | #define SOCKET_ECONNREFUSED PICO_ERR_ECONNREFUSED
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| 180 | #define SOCKET_ECONNABORTED PICO_ERR_ESHUTDOWN
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| 181 | #elif defined(FREERTOS_TCP)
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| 182 | #define SOCKET_EWOULDBLOCK FREERTOS_EWOULDBLOCK
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| 183 | #define SOCKET_EAGAIN FREERTOS_EWOULDBLOCK
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| 184 | #define SOCKET_ECONNRESET FREERTOS_SOCKET_ERROR
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| 185 | #define SOCKET_EINTR FREERTOS_SOCKET_ERROR
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| 186 | #define SOCKET_EPIPE FREERTOS_SOCKET_ERROR
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| 187 | #define SOCKET_ECONNREFUSED FREERTOS_SOCKET_ERROR
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| 188 | #define SOCKET_ECONNABORTED FREERTOS_SOCKET_ERROR
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| 189 | #else
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| 190 | #define SOCKET_EWOULDBLOCK EWOULDBLOCK
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| 191 | #define SOCKET_EAGAIN EAGAIN
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| 192 | #define SOCKET_ECONNRESET ECONNRESET
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| 193 | #define SOCKET_EINTR EINTR
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| 194 | #define SOCKET_EPIPE EPIPE
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| 195 | #define SOCKET_ECONNREFUSED ECONNREFUSED
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| 196 | #define SOCKET_ECONNABORTED ECONNABORTED
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| 197 | #endif /* USE_WINDOWS_API */
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| 198 |
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| 199 |
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| 200 | #ifdef DEVKITPRO
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| 201 | /* from network.h */
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| 202 | int net_send(int, const void*, int, unsigned int);
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| 203 | int net_recv(int, void*, int, unsigned int);
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| 204 | #define SEND_FUNCTION net_send
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| 205 | #define RECV_FUNCTION net_recv
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| 206 | #elif defined(WOLFSSL_LWIP)
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| 207 | #define SEND_FUNCTION lwip_send
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| 208 | #define RECV_FUNCTION lwip_recv
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| 209 | #elif defined(WOLFSSL_PICOTCP)
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| 210 | #define SEND_FUNCTION pico_send
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| 211 | #define RECV_FUNCTION pico_recv
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| 212 | #elif defined(FREERTOS_TCP)
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| 213 | #define RECV_FUNCTION(a,b,c,d) FreeRTOS_recv((Socket_t)(a),(void*)(b), (size_t)(c), (BaseType_t)(d))
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| 214 | #define SEND_FUNCTION(a,b,c,d) FreeRTOS_send((Socket_t)(a),(void*)(b), (size_t)(c), (BaseType_t)(d))
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| 215 | #else
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| 216 | #define SEND_FUNCTION send
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| 217 | #define RECV_FUNCTION recv
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| 218 | #endif
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| 219 |
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| 220 |
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| 221 | /* Translates return codes returned from
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| 222 | * send() and recv() if need be.
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| 223 | */
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| 224 | static INLINE int TranslateReturnCode(int old, int sd)
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| 225 | {
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| 226 | (void)sd;
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| 227 |
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| 228 | #if defined(FREESCALE_MQX) || defined(FREESCALE_KSDK_MQX)
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| 229 | if (old == 0) {
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| 230 | errno = SOCKET_EWOULDBLOCK;
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| 231 | return -1; /* convert to BSD style wouldblock as error */
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| 232 | }
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| 233 |
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| 234 | if (old < 0) {
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| 235 | errno = RTCS_geterror(sd);
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| 236 | if (errno == RTCSERR_TCP_CONN_CLOSING)
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| 237 | return 0; /* convert to BSD style closing */
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| 238 | if (errno == RTCSERR_TCP_CONN_RLSD)
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| 239 | errno = SOCKET_ECONNRESET;
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| 240 | if (errno == RTCSERR_TCP_TIMED_OUT)
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| 241 | errno = SOCKET_EAGAIN;
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| 242 | }
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| 243 | #endif
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| 244 |
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| 245 | return old;
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| 246 | }
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| 247 |
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| 248 | static INLINE int LastError(void)
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| 249 | {
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| 250 | #ifdef USE_WINDOWS_API
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| 251 | return WSAGetLastError();
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| 252 | #elif defined(EBSNET)
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| 253 | return xn_getlasterror();
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| 254 | #else
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| 255 | return errno;
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| 256 | #endif
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| 257 | }
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| 258 |
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| 259 | /* The receive embedded callback
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| 260 | * return : nb bytes read, or error
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| 261 | */
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| 262 | int EmbedReceive(WOLFSSL *ssl, char *buf, int sz, void *ctx)
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| 263 | {
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| 264 | int recvd;
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| 265 | int err;
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| 266 | int sd = *(int*)ctx;
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| 267 |
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| 268 | #ifdef WOLFSSL_DTLS
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| 269 | {
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| 270 | int dtls_timeout = wolfSSL_dtls_get_current_timeout(ssl);
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| 271 | if (wolfSSL_dtls(ssl)
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| 272 | && !wolfSSL_get_using_nonblock(ssl)
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| 273 | && dtls_timeout != 0) {
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| 274 | #ifdef USE_WINDOWS_API
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| 275 | DWORD timeout = dtls_timeout * 1000;
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| 276 | #else
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| 277 | struct timeval timeout;
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| 278 | XMEMSET(&timeout, 0, sizeof(timeout));
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| 279 | timeout.tv_sec = dtls_timeout;
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| 280 | #endif
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| 281 | if (setsockopt(sd, SOL_SOCKET, SO_RCVTIMEO, (char*)&timeout,
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| 282 | sizeof(timeout)) != 0) {
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| 283 | WOLFSSL_MSG("setsockopt rcvtimeo failed");
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| 284 | }
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| 285 | }
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| 286 | }
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| 287 | #endif
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| 288 |
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| 289 | recvd = (int)RECV_FUNCTION(sd, buf, sz, ssl->rflags);
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| 290 |
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| 291 | recvd = TranslateReturnCode(recvd, sd);
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| 292 |
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| 293 | if (recvd < 0) {
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| 294 | err = LastError();
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| 295 | WOLFSSL_MSG("Embed Receive error");
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| 296 |
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| 297 | if (err == SOCKET_EWOULDBLOCK || err == SOCKET_EAGAIN) {
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| 298 | if (!wolfSSL_dtls(ssl) || wolfSSL_get_using_nonblock(ssl)) {
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| 299 | WOLFSSL_MSG(" Would block");
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| 300 | return WOLFSSL_CBIO_ERR_WANT_READ;
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| 301 | }
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| 302 | else {
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| 303 | WOLFSSL_MSG(" Socket timeout");
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| 304 | return WOLFSSL_CBIO_ERR_TIMEOUT;
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| 305 | }
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| 306 | }
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| 307 | else if (err == SOCKET_ECONNRESET) {
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| 308 | WOLFSSL_MSG(" Connection reset");
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| 309 | return WOLFSSL_CBIO_ERR_CONN_RST;
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| 310 | }
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| 311 | else if (err == SOCKET_EINTR) {
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| 312 | WOLFSSL_MSG(" Socket interrupted");
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| 313 | return WOLFSSL_CBIO_ERR_ISR;
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| 314 | }
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| 315 | else if (err == SOCKET_ECONNREFUSED) {
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| 316 | WOLFSSL_MSG(" Connection refused");
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| 317 | return WOLFSSL_CBIO_ERR_WANT_READ;
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| 318 | }
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| 319 | else if (err == SOCKET_ECONNABORTED) {
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| 320 | WOLFSSL_MSG(" Connection aborted");
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| 321 | return WOLFSSL_CBIO_ERR_CONN_CLOSE;
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| 322 | }
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| 323 | else {
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| 324 | WOLFSSL_MSG(" General error");
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| 325 | return WOLFSSL_CBIO_ERR_GENERAL;
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| 326 | }
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| 327 | }
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| 328 | else if (recvd == 0) {
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| 329 | WOLFSSL_MSG("Embed receive connection closed");
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| 330 | return WOLFSSL_CBIO_ERR_CONN_CLOSE;
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| 331 | }
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| 332 |
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| 333 | return recvd;
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| 334 | }
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| 335 |
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| 336 | /* The send embedded callback
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| 337 | * return : nb bytes sent, or error
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| 338 | */
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| 339 | int EmbedSend(WOLFSSL* ssl, char *buf, int sz, void *ctx)
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| 340 | {
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| 341 | int sd = *(int*)ctx;
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| 342 | int sent;
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| 343 | int len = sz;
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| 344 | int err;
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| 345 |
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| 346 | sent = (int)SEND_FUNCTION(sd, &buf[sz - len], len, ssl->wflags);
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| 347 |
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| 348 | sent = TranslateReturnCode(sent, sd);
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| 349 |
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| 350 | if (sent < 0) {
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| 351 | err = LastError();
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| 352 | WOLFSSL_MSG("Embed Send error");
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| 353 |
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| 354 | if (err == SOCKET_EWOULDBLOCK || err == SOCKET_EAGAIN) {
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| 355 | WOLFSSL_MSG(" Would Block");
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| 356 | return WOLFSSL_CBIO_ERR_WANT_WRITE;
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| 357 | }
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| 358 | else if (err == SOCKET_ECONNRESET) {
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| 359 | WOLFSSL_MSG(" Connection reset");
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| 360 | return WOLFSSL_CBIO_ERR_CONN_RST;
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| 361 | }
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| 362 | else if (err == SOCKET_EINTR) {
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| 363 | WOLFSSL_MSG(" Socket interrupted");
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| 364 | return WOLFSSL_CBIO_ERR_ISR;
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| 365 | }
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| 366 | else if (err == SOCKET_EPIPE) {
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| 367 | WOLFSSL_MSG(" Socket EPIPE");
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| 368 | return WOLFSSL_CBIO_ERR_CONN_CLOSE;
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| 369 | }
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| 370 | else {
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| 371 | WOLFSSL_MSG(" General error");
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| 372 | return WOLFSSL_CBIO_ERR_GENERAL;
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| 373 | }
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| 374 | }
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| 375 |
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| 376 | return sent;
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| 377 | }
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| 378 |
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| 379 |
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| 380 | #ifdef WOLFSSL_DTLS
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| 381 |
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| 382 | #include <wolfssl/wolfcrypt/sha.h>
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| 383 |
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| 384 | #ifdef USE_WINDOWS_API
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| 385 | #define XSOCKLENT int
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| 386 | #else
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| 387 | #define XSOCKLENT socklen_t
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| 388 | #endif
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| 389 |
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| 390 | #define SENDTO_FUNCTION sendto
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| 391 | #define RECVFROM_FUNCTION recvfrom
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| 392 |
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| 393 |
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| 394 | /* The receive embedded callback
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| 395 | * return : nb bytes read, or error
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| 396 | */
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| 397 | int EmbedReceiveFrom(WOLFSSL *ssl, char *buf, int sz, void *ctx)
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| 398 | {
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| 399 | WOLFSSL_DTLS_CTX* dtlsCtx = (WOLFSSL_DTLS_CTX*)ctx;
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| 400 | int recvd;
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| 401 | int err;
|
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| 402 | int sd = dtlsCtx->fd;
|
---|
| 403 | int dtls_timeout = wolfSSL_dtls_get_current_timeout(ssl);
|
---|
| 404 | struct sockaddr_storage peer;
|
---|
| 405 | XSOCKLENT peerSz = sizeof(peer);
|
---|
| 406 |
|
---|
| 407 | WOLFSSL_ENTER("EmbedReceiveFrom()");
|
---|
| 408 |
|
---|
| 409 | if (!wolfSSL_get_using_nonblock(ssl) && dtls_timeout != 0) {
|
---|
| 410 | #ifdef USE_WINDOWS_API
|
---|
| 411 | DWORD timeout = dtls_timeout * 1000;
|
---|
| 412 | #else
|
---|
| 413 | struct timeval timeout;
|
---|
| 414 | XMEMSET(&timeout, 0, sizeof(timeout));
|
---|
| 415 | timeout.tv_sec = dtls_timeout;
|
---|
| 416 | #endif
|
---|
| 417 | if (setsockopt(sd, SOL_SOCKET, SO_RCVTIMEO, (char*)&timeout,
|
---|
| 418 | sizeof(timeout)) != 0) {
|
---|
| 419 | WOLFSSL_MSG("setsockopt rcvtimeo failed");
|
---|
| 420 | }
|
---|
| 421 | }
|
---|
| 422 |
|
---|
| 423 | recvd = (int)RECVFROM_FUNCTION(sd, buf, sz, ssl->rflags,
|
---|
| 424 | (struct sockaddr*)&peer, &peerSz);
|
---|
| 425 |
|
---|
| 426 | recvd = TranslateReturnCode(recvd, sd);
|
---|
| 427 |
|
---|
| 428 | if (recvd < 0) {
|
---|
| 429 | err = LastError();
|
---|
| 430 | WOLFSSL_MSG("Embed Receive From error");
|
---|
| 431 |
|
---|
| 432 | if (err == SOCKET_EWOULDBLOCK || err == SOCKET_EAGAIN) {
|
---|
| 433 | if (wolfSSL_get_using_nonblock(ssl)) {
|
---|
| 434 | WOLFSSL_MSG(" Would block");
|
---|
| 435 | return WOLFSSL_CBIO_ERR_WANT_READ;
|
---|
| 436 | }
|
---|
| 437 | else {
|
---|
| 438 | WOLFSSL_MSG(" Socket timeout");
|
---|
| 439 | return WOLFSSL_CBIO_ERR_TIMEOUT;
|
---|
| 440 | }
|
---|
| 441 | }
|
---|
| 442 | else if (err == SOCKET_ECONNRESET) {
|
---|
| 443 | WOLFSSL_MSG(" Connection reset");
|
---|
| 444 | return WOLFSSL_CBIO_ERR_CONN_RST;
|
---|
| 445 | }
|
---|
| 446 | else if (err == SOCKET_EINTR) {
|
---|
| 447 | WOLFSSL_MSG(" Socket interrupted");
|
---|
| 448 | return WOLFSSL_CBIO_ERR_ISR;
|
---|
| 449 | }
|
---|
| 450 | else if (err == SOCKET_ECONNREFUSED) {
|
---|
| 451 | WOLFSSL_MSG(" Connection refused");
|
---|
| 452 | return WOLFSSL_CBIO_ERR_WANT_READ;
|
---|
| 453 | }
|
---|
| 454 | else {
|
---|
| 455 | WOLFSSL_MSG(" General error");
|
---|
| 456 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
| 457 | }
|
---|
| 458 | }
|
---|
| 459 | else {
|
---|
| 460 | if (dtlsCtx->peer.sz > 0
|
---|
| 461 | && peerSz != (XSOCKLENT)dtlsCtx->peer.sz
|
---|
| 462 | && memcmp(&peer, dtlsCtx->peer.sa, peerSz) != 0) {
|
---|
| 463 | WOLFSSL_MSG(" Ignored packet from invalid peer");
|
---|
| 464 | return WOLFSSL_CBIO_ERR_WANT_READ;
|
---|
| 465 | }
|
---|
| 466 | }
|
---|
| 467 |
|
---|
| 468 | return recvd;
|
---|
| 469 | }
|
---|
| 470 |
|
---|
| 471 |
|
---|
| 472 | /* The send embedded callback
|
---|
| 473 | * return : nb bytes sent, or error
|
---|
| 474 | */
|
---|
| 475 | int EmbedSendTo(WOLFSSL* ssl, char *buf, int sz, void *ctx)
|
---|
| 476 | {
|
---|
| 477 | WOLFSSL_DTLS_CTX* dtlsCtx = (WOLFSSL_DTLS_CTX*)ctx;
|
---|
| 478 | int sd = dtlsCtx->fd;
|
---|
| 479 | int sent;
|
---|
| 480 | int len = sz;
|
---|
| 481 | int err;
|
---|
| 482 |
|
---|
| 483 | WOLFSSL_ENTER("EmbedSendTo()");
|
---|
| 484 |
|
---|
| 485 | sent = (int)SENDTO_FUNCTION(sd, &buf[sz - len], len, ssl->wflags,
|
---|
| 486 | (const struct sockaddr*)dtlsCtx->peer.sa,
|
---|
| 487 | dtlsCtx->peer.sz);
|
---|
| 488 |
|
---|
| 489 | sent = TranslateReturnCode(sent, sd);
|
---|
| 490 |
|
---|
| 491 | if (sent < 0) {
|
---|
| 492 | err = LastError();
|
---|
| 493 | WOLFSSL_MSG("Embed Send To error");
|
---|
| 494 |
|
---|
| 495 | if (err == SOCKET_EWOULDBLOCK || err == SOCKET_EAGAIN) {
|
---|
| 496 | WOLFSSL_MSG(" Would Block");
|
---|
| 497 | return WOLFSSL_CBIO_ERR_WANT_WRITE;
|
---|
| 498 | }
|
---|
| 499 | else if (err == SOCKET_ECONNRESET) {
|
---|
| 500 | WOLFSSL_MSG(" Connection reset");
|
---|
| 501 | return WOLFSSL_CBIO_ERR_CONN_RST;
|
---|
| 502 | }
|
---|
| 503 | else if (err == SOCKET_EINTR) {
|
---|
| 504 | WOLFSSL_MSG(" Socket interrupted");
|
---|
| 505 | return WOLFSSL_CBIO_ERR_ISR;
|
---|
| 506 | }
|
---|
| 507 | else if (err == SOCKET_EPIPE) {
|
---|
| 508 | WOLFSSL_MSG(" Socket EPIPE");
|
---|
| 509 | return WOLFSSL_CBIO_ERR_CONN_CLOSE;
|
---|
| 510 | }
|
---|
| 511 | else {
|
---|
| 512 | WOLFSSL_MSG(" General error");
|
---|
| 513 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
| 514 | }
|
---|
| 515 | }
|
---|
| 516 |
|
---|
| 517 | return sent;
|
---|
| 518 | }
|
---|
| 519 |
|
---|
| 520 |
|
---|
| 521 | /* The DTLS Generate Cookie callback
|
---|
| 522 | * return : number of bytes copied into buf, or error
|
---|
| 523 | */
|
---|
| 524 | int EmbedGenerateCookie(WOLFSSL* ssl, byte *buf, int sz, void *ctx)
|
---|
| 525 | {
|
---|
| 526 | int sd = ssl->wfd;
|
---|
| 527 | struct sockaddr_storage peer;
|
---|
| 528 | XSOCKLENT peerSz = sizeof(peer);
|
---|
| 529 | byte digest[SHA_DIGEST_SIZE];
|
---|
| 530 | int ret = 0;
|
---|
| 531 |
|
---|
| 532 | (void)ctx;
|
---|
| 533 |
|
---|
| 534 | XMEMSET(&peer, 0, sizeof(peer));
|
---|
| 535 | if (getpeername(sd, (struct sockaddr*)&peer, &peerSz) != 0) {
|
---|
| 536 | WOLFSSL_MSG("getpeername failed in EmbedGenerateCookie");
|
---|
| 537 | return GEN_COOKIE_E;
|
---|
| 538 | }
|
---|
| 539 |
|
---|
| 540 | ret = wc_ShaHash((byte*)&peer, peerSz, digest);
|
---|
| 541 | if (ret != 0)
|
---|
| 542 | return ret;
|
---|
| 543 |
|
---|
| 544 | if (sz > SHA_DIGEST_SIZE)
|
---|
| 545 | sz = SHA_DIGEST_SIZE;
|
---|
| 546 | XMEMCPY(buf, digest, sz);
|
---|
| 547 |
|
---|
| 548 | return sz;
|
---|
| 549 | }
|
---|
| 550 |
|
---|
| 551 | #endif /* WOLFSSL_DTLS */
|
---|
| 552 |
|
---|
| 553 | #ifdef HAVE_OCSP
|
---|
| 554 |
|
---|
| 555 | #include <stdlib.h> /* atoi() */
|
---|
| 556 |
|
---|
| 557 |
|
---|
| 558 | static int Word16ToString(char* d, word16 number)
|
---|
| 559 | {
|
---|
| 560 | int i = 0;
|
---|
| 561 |
|
---|
| 562 | if (d != NULL) {
|
---|
| 563 | word16 order = 10000;
|
---|
| 564 | word16 digit;
|
---|
| 565 |
|
---|
| 566 | if (number == 0) {
|
---|
| 567 | d[i++] = '0';
|
---|
| 568 | }
|
---|
| 569 | else {
|
---|
| 570 | while (order) {
|
---|
| 571 | digit = number / order;
|
---|
| 572 | if (i > 0 || digit != 0) {
|
---|
| 573 | d[i++] = (char)digit + '0';
|
---|
| 574 | }
|
---|
| 575 | if (digit != 0)
|
---|
| 576 | number %= digit * order;
|
---|
| 577 | if (order > 1)
|
---|
| 578 | order /= 10;
|
---|
| 579 | else
|
---|
| 580 | order = 0;
|
---|
| 581 | }
|
---|
| 582 | }
|
---|
| 583 | d[i] = 0;
|
---|
| 584 | }
|
---|
| 585 |
|
---|
| 586 | return i;
|
---|
| 587 | }
|
---|
| 588 |
|
---|
| 589 |
|
---|
| 590 | static int tcp_connect(SOCKET_T* sockfd, const char* ip, word16 port)
|
---|
| 591 | {
|
---|
| 592 | struct sockaddr_storage addr;
|
---|
| 593 | int sockaddr_len = sizeof(struct sockaddr_in);
|
---|
| 594 | XMEMSET(&addr, 0, sizeof(addr));
|
---|
| 595 |
|
---|
| 596 | #ifdef HAVE_GETADDRINFO
|
---|
| 597 | {
|
---|
| 598 | struct addrinfo hints;
|
---|
| 599 | struct addrinfo* answer = NULL;
|
---|
| 600 | char strPort[6];
|
---|
| 601 |
|
---|
| 602 | XMEMSET(&hints, 0, sizeof(hints));
|
---|
| 603 | hints.ai_family = AF_UNSPEC;
|
---|
| 604 | hints.ai_socktype = SOCK_STREAM;
|
---|
| 605 | hints.ai_protocol = IPPROTO_TCP;
|
---|
| 606 |
|
---|
| 607 | if (Word16ToString(strPort, port) == 0) {
|
---|
| 608 | WOLFSSL_MSG("invalid port number for OCSP responder");
|
---|
| 609 | return -1;
|
---|
| 610 | }
|
---|
| 611 |
|
---|
| 612 | if (getaddrinfo(ip, strPort, &hints, &answer) < 0 || answer == NULL) {
|
---|
| 613 | WOLFSSL_MSG("no addr info for OCSP responder");
|
---|
| 614 | return -1;
|
---|
| 615 | }
|
---|
| 616 |
|
---|
| 617 | sockaddr_len = answer->ai_addrlen;
|
---|
| 618 | XMEMCPY(&addr, answer->ai_addr, sockaddr_len);
|
---|
| 619 | freeaddrinfo(answer);
|
---|
| 620 |
|
---|
| 621 | }
|
---|
| 622 | #else /* HAVE_GETADDRINFO */
|
---|
| 623 | {
|
---|
| 624 | struct hostent* entry = gethostbyname(ip);
|
---|
| 625 | struct sockaddr_in *sin = (struct sockaddr_in *)&addr;
|
---|
| 626 |
|
---|
| 627 | if (entry) {
|
---|
| 628 | sin->sin_family = AF_INET;
|
---|
| 629 | sin->sin_port = htons(port);
|
---|
| 630 | XMEMCPY(&sin->sin_addr.s_addr, entry->h_addr_list[0],
|
---|
| 631 | entry->h_length);
|
---|
| 632 | }
|
---|
| 633 | else {
|
---|
| 634 | WOLFSSL_MSG("no addr info for OCSP responder");
|
---|
| 635 | return -1;
|
---|
| 636 | }
|
---|
| 637 | }
|
---|
| 638 | #endif /* HAVE_GETADDRINFO */
|
---|
| 639 |
|
---|
| 640 | *sockfd = socket(addr.ss_family, SOCK_STREAM, 0);
|
---|
| 641 |
|
---|
| 642 | #ifdef USE_WINDOWS_API
|
---|
| 643 | if (*sockfd == INVALID_SOCKET) {
|
---|
| 644 | WOLFSSL_MSG("bad socket fd, out of fds?");
|
---|
| 645 | return -1;
|
---|
| 646 | }
|
---|
| 647 | #else
|
---|
| 648 | if (*sockfd < 0) {
|
---|
| 649 | WOLFSSL_MSG("bad socket fd, out of fds?");
|
---|
| 650 | return -1;
|
---|
| 651 | }
|
---|
| 652 | #endif
|
---|
| 653 |
|
---|
| 654 | if (connect(*sockfd, (struct sockaddr *)&addr, sockaddr_len) != 0) {
|
---|
| 655 | WOLFSSL_MSG("OCSP responder tcp connect failed");
|
---|
| 656 | return -1;
|
---|
| 657 | }
|
---|
| 658 |
|
---|
| 659 | return 0;
|
---|
| 660 | }
|
---|
| 661 |
|
---|
| 662 |
|
---|
| 663 | static int build_http_request(const char* domainName, const char* path,
|
---|
| 664 | int ocspReqSz, byte* buf, int bufSize)
|
---|
| 665 | {
|
---|
| 666 | word32 domainNameLen, pathLen, ocspReqSzStrLen, completeLen;
|
---|
| 667 | char ocspReqSzStr[6];
|
---|
| 668 |
|
---|
| 669 | domainNameLen = (word32)XSTRLEN(domainName);
|
---|
| 670 | pathLen = (word32)XSTRLEN(path);
|
---|
| 671 | ocspReqSzStrLen = Word16ToString(ocspReqSzStr, (word16)ocspReqSz);
|
---|
| 672 |
|
---|
| 673 | completeLen = domainNameLen + pathLen + ocspReqSzStrLen + 84;
|
---|
| 674 | if (completeLen > (word32)bufSize)
|
---|
| 675 | return 0;
|
---|
| 676 |
|
---|
| 677 | XSTRNCPY((char*)buf, "POST ", 5);
|
---|
| 678 | buf += 5;
|
---|
| 679 | XSTRNCPY((char*)buf, path, pathLen);
|
---|
| 680 | buf += pathLen;
|
---|
| 681 | XSTRNCPY((char*)buf, " HTTP/1.1\r\nHost: ", 17);
|
---|
| 682 | buf += 17;
|
---|
| 683 | XSTRNCPY((char*)buf, domainName, domainNameLen);
|
---|
| 684 | buf += domainNameLen;
|
---|
| 685 | XSTRNCPY((char*)buf, "\r\nContent-Length: ", 18);
|
---|
| 686 | buf += 18;
|
---|
| 687 | XSTRNCPY((char*)buf, ocspReqSzStr, ocspReqSzStrLen);
|
---|
| 688 | buf += ocspReqSzStrLen;
|
---|
| 689 | XSTRNCPY((char*)buf,
|
---|
| 690 | "\r\nContent-Type: application/ocsp-request\r\n\r\n", 44);
|
---|
| 691 |
|
---|
| 692 | return completeLen;
|
---|
| 693 | }
|
---|
| 694 |
|
---|
| 695 |
|
---|
| 696 | static int decode_url(const char* url, int urlSz,
|
---|
| 697 | char* outName, char* outPath, word16* outPort)
|
---|
| 698 | {
|
---|
| 699 | int result = -1;
|
---|
| 700 |
|
---|
| 701 | if (outName != NULL && outPath != NULL && outPort != NULL)
|
---|
| 702 | {
|
---|
| 703 | if (url == NULL || urlSz == 0)
|
---|
| 704 | {
|
---|
| 705 | *outName = 0;
|
---|
| 706 | *outPath = 0;
|
---|
| 707 | *outPort = 0;
|
---|
| 708 | }
|
---|
| 709 | else
|
---|
| 710 | {
|
---|
| 711 | int i, cur;
|
---|
| 712 |
|
---|
| 713 | /* need to break the url down into scheme, address, and port */
|
---|
| 714 | /* "http://example.com:8080/" */
|
---|
| 715 | /* "http://[::1]:443/" */
|
---|
| 716 | if (XSTRNCMP(url, "http://", 7) == 0) {
|
---|
| 717 | cur = 7;
|
---|
| 718 | } else cur = 0;
|
---|
| 719 |
|
---|
| 720 | i = 0;
|
---|
| 721 | if (url[cur] == '[') {
|
---|
| 722 | cur++;
|
---|
| 723 | /* copy until ']' */
|
---|
| 724 | while (url[cur] != 0 && url[cur] != ']' && cur < urlSz) {
|
---|
| 725 | outName[i++] = url[cur++];
|
---|
| 726 | }
|
---|
| 727 | cur++; /* skip ']' */
|
---|
| 728 | }
|
---|
| 729 | else {
|
---|
| 730 | while (url[cur] != 0 && url[cur] != ':' &&
|
---|
| 731 | url[cur] != '/' && cur < urlSz) {
|
---|
| 732 | outName[i++] = url[cur++];
|
---|
| 733 | }
|
---|
| 734 | }
|
---|
| 735 | outName[i] = 0;
|
---|
| 736 | /* Need to pick out the path after the domain name */
|
---|
| 737 |
|
---|
| 738 | if (cur < urlSz && url[cur] == ':') {
|
---|
| 739 | char port[6];
|
---|
| 740 | int j;
|
---|
| 741 | word32 bigPort = 0;
|
---|
| 742 | i = 0;
|
---|
| 743 | cur++;
|
---|
| 744 | while (cur < urlSz && url[cur] != 0 && url[cur] != '/' &&
|
---|
| 745 | i < 6) {
|
---|
| 746 | port[i++] = url[cur++];
|
---|
| 747 | }
|
---|
| 748 |
|
---|
| 749 | for (j = 0; j < i; j++) {
|
---|
| 750 | if (port[j] < '0' || port[j] > '9') return -1;
|
---|
| 751 | bigPort = (bigPort * 10) + (port[j] - '0');
|
---|
| 752 | }
|
---|
| 753 | *outPort = (word16)bigPort;
|
---|
| 754 | }
|
---|
| 755 | else
|
---|
| 756 | *outPort = 80;
|
---|
| 757 |
|
---|
| 758 | if (cur < urlSz && url[cur] == '/') {
|
---|
| 759 | i = 0;
|
---|
| 760 | while (cur < urlSz && url[cur] != 0 && i < 80) {
|
---|
| 761 | outPath[i++] = url[cur++];
|
---|
| 762 | }
|
---|
| 763 | outPath[i] = 0;
|
---|
| 764 | }
|
---|
| 765 | else {
|
---|
| 766 | outPath[0] = '/';
|
---|
| 767 | outPath[1] = 0;
|
---|
| 768 | }
|
---|
| 769 | result = 0;
|
---|
| 770 | }
|
---|
| 771 | }
|
---|
| 772 |
|
---|
| 773 | return result;
|
---|
| 774 | }
|
---|
| 775 |
|
---|
| 776 |
|
---|
| 777 | /* return: >0 OCSP Response Size
|
---|
| 778 | * -1 error */
|
---|
| 779 | static int process_http_response(int sfd, byte** respBuf,
|
---|
| 780 | byte* httpBuf, int httpBufSz)
|
---|
| 781 | {
|
---|
| 782 | int result;
|
---|
| 783 | int len = 0;
|
---|
| 784 | char *start, *end;
|
---|
| 785 | byte *recvBuf = NULL;
|
---|
| 786 | int recvBufSz = 0;
|
---|
| 787 | enum phr_state { phr_init, phr_http_start, phr_have_length,
|
---|
| 788 | phr_have_type, phr_wait_end, phr_http_end
|
---|
| 789 | } state = phr_init;
|
---|
| 790 |
|
---|
| 791 | start = end = NULL;
|
---|
| 792 | do {
|
---|
| 793 | if (end == NULL) {
|
---|
| 794 | result = (int)recv(sfd, (char*)httpBuf+len, httpBufSz-len-1, 0);
|
---|
| 795 | if (result > 0) {
|
---|
| 796 | len += result;
|
---|
| 797 | start = (char*)httpBuf;
|
---|
| 798 | start[len] = 0;
|
---|
| 799 | }
|
---|
| 800 | else {
|
---|
| 801 | WOLFSSL_MSG("process_http_response recv http from peer failed");
|
---|
| 802 | return -1;
|
---|
| 803 | }
|
---|
| 804 | }
|
---|
| 805 | end = XSTRSTR(start, "\r\n");
|
---|
| 806 |
|
---|
| 807 | if (end == NULL) {
|
---|
| 808 | if (len != 0)
|
---|
| 809 | XMEMMOVE(httpBuf, start, len);
|
---|
| 810 | start = end = NULL;
|
---|
| 811 | }
|
---|
| 812 | else if (end == start) {
|
---|
| 813 | if (state == phr_wait_end) {
|
---|
| 814 | state = phr_http_end;
|
---|
| 815 | len -= 2;
|
---|
| 816 | start += 2;
|
---|
| 817 | }
|
---|
| 818 | else {
|
---|
| 819 | WOLFSSL_MSG("process_http_response header ended early");
|
---|
| 820 | return -1;
|
---|
| 821 | }
|
---|
| 822 | }
|
---|
| 823 | else {
|
---|
| 824 | *end = 0;
|
---|
| 825 | len -= (int)(end - start) + 2;
|
---|
| 826 | /* adjust len to remove the first line including the /r/n */
|
---|
| 827 |
|
---|
| 828 | if (XSTRNCASECMP(start, "HTTP/1", 6) == 0) {
|
---|
| 829 | start += 9;
|
---|
| 830 | if (XSTRNCASECMP(start, "200 OK", 6) != 0 ||
|
---|
| 831 | state != phr_init) {
|
---|
| 832 | WOLFSSL_MSG("process_http_response not OK");
|
---|
| 833 | return -1;
|
---|
| 834 | }
|
---|
| 835 | state = phr_http_start;
|
---|
| 836 | }
|
---|
| 837 | else if (XSTRNCASECMP(start, "Content-Type:", 13) == 0) {
|
---|
| 838 | start += 13;
|
---|
| 839 | while (*start == ' ' && *start != '\0') start++;
|
---|
| 840 | if (XSTRNCASECMP(start, "application/ocsp-response", 25) != 0) {
|
---|
| 841 | WOLFSSL_MSG("process_http_response not ocsp-response");
|
---|
| 842 | return -1;
|
---|
| 843 | }
|
---|
| 844 |
|
---|
| 845 | if (state == phr_http_start) state = phr_have_type;
|
---|
| 846 | else if (state == phr_have_length) state = phr_wait_end;
|
---|
| 847 | else {
|
---|
| 848 | WOLFSSL_MSG("process_http_response type invalid state");
|
---|
| 849 | return -1;
|
---|
| 850 | }
|
---|
| 851 | }
|
---|
| 852 | else if (XSTRNCASECMP(start, "Content-Length:", 15) == 0) {
|
---|
| 853 | start += 15;
|
---|
| 854 | while (*start == ' ' && *start != '\0') start++;
|
---|
| 855 | recvBufSz = atoi(start);
|
---|
| 856 |
|
---|
| 857 | if (state == phr_http_start) state = phr_have_length;
|
---|
| 858 | else if (state == phr_have_type) state = phr_wait_end;
|
---|
| 859 | else {
|
---|
| 860 | WOLFSSL_MSG("process_http_response length invalid state");
|
---|
| 861 | return -1;
|
---|
| 862 | }
|
---|
| 863 | }
|
---|
| 864 |
|
---|
| 865 | start = end + 2;
|
---|
| 866 | }
|
---|
| 867 | } while (state != phr_http_end);
|
---|
| 868 |
|
---|
| 869 | recvBuf = (byte*)XMALLOC(recvBufSz, NULL, DYNAMIC_TYPE_IN_BUFFER);
|
---|
| 870 | if (recvBuf == NULL) {
|
---|
| 871 | WOLFSSL_MSG("process_http_response couldn't create response buffer");
|
---|
| 872 | return -1;
|
---|
| 873 | }
|
---|
| 874 |
|
---|
| 875 | /* copy the remainder of the httpBuf into the respBuf */
|
---|
| 876 | if (len != 0)
|
---|
| 877 | XMEMCPY(recvBuf, start, len);
|
---|
| 878 |
|
---|
| 879 | /* receive the OCSP response data */
|
---|
| 880 | do {
|
---|
| 881 | result = (int)recv(sfd, (char*)recvBuf+len, recvBufSz-len, 0);
|
---|
| 882 | if (result > 0)
|
---|
| 883 | len += result;
|
---|
| 884 | else {
|
---|
| 885 | WOLFSSL_MSG("process_http_response recv ocsp from peer failed");
|
---|
| 886 | return -1;
|
---|
| 887 | }
|
---|
| 888 | } while (len != recvBufSz);
|
---|
| 889 |
|
---|
| 890 | *respBuf = recvBuf;
|
---|
| 891 | return recvBufSz;
|
---|
| 892 | }
|
---|
| 893 |
|
---|
| 894 |
|
---|
| 895 | #define SCRATCH_BUFFER_SIZE 512
|
---|
| 896 |
|
---|
| 897 | int EmbedOcspLookup(void* ctx, const char* url, int urlSz,
|
---|
| 898 | byte* ocspReqBuf, int ocspReqSz, byte** ocspRespBuf)
|
---|
| 899 | {
|
---|
| 900 | SOCKET_T sfd = 0;
|
---|
| 901 | word16 port;
|
---|
| 902 | int ret = -1;
|
---|
| 903 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 904 | char* path;
|
---|
| 905 | char* domainName;
|
---|
| 906 | #else
|
---|
| 907 | char path[80];
|
---|
| 908 | char domainName[80];
|
---|
| 909 | #endif
|
---|
| 910 |
|
---|
| 911 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 912 | path = (char*)XMALLOC(80, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 913 | if (path == NULL)
|
---|
| 914 | return -1;
|
---|
| 915 |
|
---|
| 916 | domainName = (char*)XMALLOC(80, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 917 | if (domainName == NULL) {
|
---|
| 918 | XFREE(path, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 919 | return -1;
|
---|
| 920 | }
|
---|
| 921 | #endif
|
---|
| 922 |
|
---|
| 923 | (void)ctx;
|
---|
| 924 |
|
---|
| 925 | if (ocspReqBuf == NULL || ocspReqSz == 0) {
|
---|
| 926 | WOLFSSL_MSG("OCSP request is required for lookup");
|
---|
| 927 | }
|
---|
| 928 | else if (ocspRespBuf == NULL) {
|
---|
| 929 | WOLFSSL_MSG("Cannot save OCSP response");
|
---|
| 930 | }
|
---|
| 931 | else if (decode_url(url, urlSz, domainName, path, &port) < 0) {
|
---|
| 932 | WOLFSSL_MSG("Unable to decode OCSP URL");
|
---|
| 933 | }
|
---|
| 934 | else {
|
---|
| 935 | /* Note, the library uses the EmbedOcspRespFree() callback to
|
---|
| 936 | * free this buffer. */
|
---|
| 937 | int httpBufSz = SCRATCH_BUFFER_SIZE;
|
---|
| 938 | byte* httpBuf = (byte*)XMALLOC(httpBufSz, NULL,
|
---|
| 939 | DYNAMIC_TYPE_IN_BUFFER);
|
---|
| 940 |
|
---|
| 941 | if (httpBuf == NULL) {
|
---|
| 942 | WOLFSSL_MSG("Unable to create OCSP response buffer");
|
---|
| 943 | }
|
---|
| 944 | else {
|
---|
| 945 | httpBufSz = build_http_request(domainName, path, ocspReqSz,
|
---|
| 946 | httpBuf, httpBufSz);
|
---|
| 947 |
|
---|
| 948 | if ((tcp_connect(&sfd, domainName, port) != 0) || (sfd <= 0)) {
|
---|
| 949 | WOLFSSL_MSG("OCSP Responder connection failed");
|
---|
| 950 | }
|
---|
| 951 | else if ((int)send(sfd, (char*)httpBuf, httpBufSz, 0) !=
|
---|
| 952 | httpBufSz) {
|
---|
| 953 | WOLFSSL_MSG("OCSP http request failed");
|
---|
| 954 | }
|
---|
| 955 | else if ((int)send(sfd, (char*)ocspReqBuf, ocspReqSz, 0) !=
|
---|
| 956 | ocspReqSz) {
|
---|
| 957 | WOLFSSL_MSG("OCSP ocsp request failed");
|
---|
| 958 | }
|
---|
| 959 | else {
|
---|
| 960 | ret = process_http_response(sfd, ocspRespBuf, httpBuf,
|
---|
| 961 | SCRATCH_BUFFER_SIZE);
|
---|
| 962 | }
|
---|
| 963 |
|
---|
| 964 | close(sfd);
|
---|
| 965 | XFREE(httpBuf, NULL, DYNAMIC_TYPE_IN_BUFFER);
|
---|
| 966 | }
|
---|
| 967 | }
|
---|
| 968 |
|
---|
| 969 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 970 | XFREE(path, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 971 | XFREE(domainName, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 972 | #endif
|
---|
| 973 |
|
---|
| 974 | return ret;
|
---|
| 975 | }
|
---|
| 976 |
|
---|
| 977 |
|
---|
| 978 | void EmbedOcspRespFree(void* ctx, byte *resp)
|
---|
| 979 | {
|
---|
| 980 | (void)ctx;
|
---|
| 981 |
|
---|
| 982 | if (resp)
|
---|
| 983 | XFREE(resp, NULL, DYNAMIC_TYPE_IN_BUFFER);
|
---|
| 984 | }
|
---|
| 985 |
|
---|
| 986 |
|
---|
| 987 | #endif
|
---|
| 988 |
|
---|
| 989 | #endif /* WOLFSSL_USER_IO */
|
---|
| 990 |
|
---|
| 991 | WOLFSSL_API void wolfSSL_SetIORecv(WOLFSSL_CTX *ctx, CallbackIORecv CBIORecv)
|
---|
| 992 | {
|
---|
| 993 | ctx->CBIORecv = CBIORecv;
|
---|
| 994 | }
|
---|
| 995 |
|
---|
| 996 |
|
---|
| 997 | WOLFSSL_API void wolfSSL_SetIOSend(WOLFSSL_CTX *ctx, CallbackIOSend CBIOSend)
|
---|
| 998 | {
|
---|
| 999 | ctx->CBIOSend = CBIOSend;
|
---|
| 1000 | }
|
---|
| 1001 |
|
---|
| 1002 |
|
---|
| 1003 | WOLFSSL_API void wolfSSL_SetIOReadCtx(WOLFSSL* ssl, void *rctx)
|
---|
| 1004 | {
|
---|
| 1005 | ssl->IOCB_ReadCtx = rctx;
|
---|
| 1006 | }
|
---|
| 1007 |
|
---|
| 1008 |
|
---|
| 1009 | WOLFSSL_API void wolfSSL_SetIOWriteCtx(WOLFSSL* ssl, void *wctx)
|
---|
| 1010 | {
|
---|
| 1011 | ssl->IOCB_WriteCtx = wctx;
|
---|
| 1012 | }
|
---|
| 1013 |
|
---|
| 1014 |
|
---|
| 1015 | WOLFSSL_API void* wolfSSL_GetIOReadCtx(WOLFSSL* ssl)
|
---|
| 1016 | {
|
---|
| 1017 | if (ssl)
|
---|
| 1018 | return ssl->IOCB_ReadCtx;
|
---|
| 1019 |
|
---|
| 1020 | return NULL;
|
---|
| 1021 | }
|
---|
| 1022 |
|
---|
| 1023 |
|
---|
| 1024 | WOLFSSL_API void* wolfSSL_GetIOWriteCtx(WOLFSSL* ssl)
|
---|
| 1025 | {
|
---|
| 1026 | if (ssl)
|
---|
| 1027 | return ssl->IOCB_WriteCtx;
|
---|
| 1028 |
|
---|
| 1029 | return NULL;
|
---|
| 1030 | }
|
---|
| 1031 |
|
---|
| 1032 |
|
---|
| 1033 | WOLFSSL_API void wolfSSL_SetIOReadFlags(WOLFSSL* ssl, int flags)
|
---|
| 1034 | {
|
---|
| 1035 | ssl->rflags = flags;
|
---|
| 1036 | }
|
---|
| 1037 |
|
---|
| 1038 |
|
---|
| 1039 | WOLFSSL_API void wolfSSL_SetIOWriteFlags(WOLFSSL* ssl, int flags)
|
---|
| 1040 | {
|
---|
| 1041 | ssl->wflags = flags;
|
---|
| 1042 | }
|
---|
| 1043 |
|
---|
| 1044 |
|
---|
| 1045 | #ifdef WOLFSSL_DTLS
|
---|
| 1046 |
|
---|
| 1047 | WOLFSSL_API void wolfSSL_CTX_SetGenCookie(WOLFSSL_CTX* ctx, CallbackGenCookie cb)
|
---|
| 1048 | {
|
---|
| 1049 | ctx->CBIOCookie = cb;
|
---|
| 1050 | }
|
---|
| 1051 |
|
---|
| 1052 |
|
---|
| 1053 | WOLFSSL_API void wolfSSL_SetCookieCtx(WOLFSSL* ssl, void *ctx)
|
---|
| 1054 | {
|
---|
| 1055 | ssl->IOCB_CookieCtx = ctx;
|
---|
| 1056 | }
|
---|
| 1057 |
|
---|
| 1058 |
|
---|
| 1059 | WOLFSSL_API void* wolfSSL_GetCookieCtx(WOLFSSL* ssl)
|
---|
| 1060 | {
|
---|
| 1061 | if (ssl)
|
---|
| 1062 | return ssl->IOCB_CookieCtx;
|
---|
| 1063 |
|
---|
| 1064 | return NULL;
|
---|
| 1065 | }
|
---|
| 1066 |
|
---|
| 1067 | #endif /* WOLFSSL_DTLS */
|
---|
| 1068 |
|
---|
| 1069 |
|
---|
| 1070 | #ifdef HAVE_NETX
|
---|
| 1071 |
|
---|
| 1072 | /* The NetX receive callback
|
---|
| 1073 | * return : bytes read, or error
|
---|
| 1074 | */
|
---|
| 1075 | int NetX_Receive(WOLFSSL *ssl, char *buf, int sz, void *ctx)
|
---|
| 1076 | {
|
---|
| 1077 | NetX_Ctx* nxCtx = (NetX_Ctx*)ctx;
|
---|
| 1078 | ULONG left;
|
---|
| 1079 | ULONG total;
|
---|
| 1080 | ULONG copied = 0;
|
---|
| 1081 | UINT status;
|
---|
| 1082 |
|
---|
| 1083 | if (nxCtx == NULL || nxCtx->nxSocket == NULL) {
|
---|
| 1084 | WOLFSSL_MSG("NetX Recv NULL parameters");
|
---|
| 1085 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
| 1086 | }
|
---|
| 1087 |
|
---|
| 1088 | if (nxCtx->nxPacket == NULL) {
|
---|
| 1089 | status = nx_tcp_socket_receive(nxCtx->nxSocket, &nxCtx->nxPacket,
|
---|
| 1090 | nxCtx->nxWait);
|
---|
| 1091 | if (status != NX_SUCCESS) {
|
---|
| 1092 | WOLFSSL_MSG("NetX Recv receive error");
|
---|
| 1093 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
| 1094 | }
|
---|
| 1095 | }
|
---|
| 1096 |
|
---|
| 1097 | if (nxCtx->nxPacket) {
|
---|
| 1098 | status = nx_packet_length_get(nxCtx->nxPacket, &total);
|
---|
| 1099 | if (status != NX_SUCCESS) {
|
---|
| 1100 | WOLFSSL_MSG("NetX Recv length get error");
|
---|
| 1101 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
| 1102 | }
|
---|
| 1103 |
|
---|
| 1104 | left = total - nxCtx->nxOffset;
|
---|
| 1105 | status = nx_packet_data_extract_offset(nxCtx->nxPacket, nxCtx->nxOffset,
|
---|
| 1106 | buf, sz, &copied);
|
---|
| 1107 | if (status != NX_SUCCESS) {
|
---|
| 1108 | WOLFSSL_MSG("NetX Recv data extract offset error");
|
---|
| 1109 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
| 1110 | }
|
---|
| 1111 |
|
---|
| 1112 | nxCtx->nxOffset += copied;
|
---|
| 1113 |
|
---|
| 1114 | if (copied == left) {
|
---|
| 1115 | WOLFSSL_MSG("NetX Recv Drained packet");
|
---|
| 1116 | nx_packet_release(nxCtx->nxPacket);
|
---|
| 1117 | nxCtx->nxPacket = NULL;
|
---|
| 1118 | nxCtx->nxOffset = 0;
|
---|
| 1119 | }
|
---|
| 1120 | }
|
---|
| 1121 |
|
---|
| 1122 | return copied;
|
---|
| 1123 | }
|
---|
| 1124 |
|
---|
| 1125 |
|
---|
| 1126 | /* The NetX send callback
|
---|
| 1127 | * return : bytes sent, or error
|
---|
| 1128 | */
|
---|
| 1129 | int NetX_Send(WOLFSSL* ssl, char *buf, int sz, void *ctx)
|
---|
| 1130 | {
|
---|
| 1131 | NetX_Ctx* nxCtx = (NetX_Ctx*)ctx;
|
---|
| 1132 | NX_PACKET* packet;
|
---|
| 1133 | NX_PACKET_POOL* pool; /* shorthand */
|
---|
| 1134 | UINT status;
|
---|
| 1135 |
|
---|
| 1136 | if (nxCtx == NULL || nxCtx->nxSocket == NULL) {
|
---|
| 1137 | WOLFSSL_MSG("NetX Send NULL parameters");
|
---|
| 1138 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
| 1139 | }
|
---|
| 1140 |
|
---|
| 1141 | pool = nxCtx->nxSocket->nx_tcp_socket_ip_ptr->nx_ip_default_packet_pool;
|
---|
| 1142 | status = nx_packet_allocate(pool, &packet, NX_TCP_PACKET,
|
---|
| 1143 | nxCtx->nxWait);
|
---|
| 1144 | if (status != NX_SUCCESS) {
|
---|
| 1145 | WOLFSSL_MSG("NetX Send packet alloc error");
|
---|
| 1146 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
| 1147 | }
|
---|
| 1148 |
|
---|
| 1149 | status = nx_packet_data_append(packet, buf, sz, pool, nxCtx->nxWait);
|
---|
| 1150 | if (status != NX_SUCCESS) {
|
---|
| 1151 | nx_packet_release(packet);
|
---|
| 1152 | WOLFSSL_MSG("NetX Send data append error");
|
---|
| 1153 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
| 1154 | }
|
---|
| 1155 |
|
---|
| 1156 | status = nx_tcp_socket_send(nxCtx->nxSocket, packet, nxCtx->nxWait);
|
---|
| 1157 | if (status != NX_SUCCESS) {
|
---|
| 1158 | nx_packet_release(packet);
|
---|
| 1159 | WOLFSSL_MSG("NetX Send socket send error");
|
---|
| 1160 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
| 1161 | }
|
---|
| 1162 |
|
---|
| 1163 | return sz;
|
---|
| 1164 | }
|
---|
| 1165 |
|
---|
| 1166 |
|
---|
| 1167 | /* like set_fd, but for default NetX context */
|
---|
| 1168 | void wolfSSL_SetIO_NetX(WOLFSSL* ssl, NX_TCP_SOCKET* nxSocket, ULONG waitOption)
|
---|
| 1169 | {
|
---|
| 1170 | if (ssl) {
|
---|
| 1171 | ssl->nxCtx.nxSocket = nxSocket;
|
---|
| 1172 | ssl->nxCtx.nxWait = waitOption;
|
---|
| 1173 | }
|
---|
| 1174 | }
|
---|
| 1175 |
|
---|
| 1176 | #endif /* HAVE_NETX */
|
---|
| 1177 | #endif /* WOLFCRYPT_ONLY */
|
---|
| 1178 |
|
---|