[398] | 1 | // Copyright (c) Microsoft. All rights reserved.
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| 2 | // Licensed under the MIT license. See LICENSE file in the project root for full license information.
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| 3 |
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| 4 | #include <stdlib.h>
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| 5 | #include <stdio.h>
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| 6 | #include <stdint.h>
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| 7 | #include <stdbool.h>
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| 8 | #include <string.h>
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| 9 |
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| 10 | #include "mbedtls/config.h"
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| 11 | #include "mbedtls/debug.h"
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| 12 | #include "mbedtls/ssl.h"
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| 13 | #include "mbedtls/entropy.h"
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| 14 | #include "mbedtls/ctr_drbg.h"
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| 15 | #include "mbedtls/error.h"
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| 16 | #include "mbedtls/certs.h"
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| 17 | #include "mbedtls/entropy_poll.h"
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| 18 |
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| 19 | #include "azure_c_shared_utility/gballoc.h"
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| 20 | #include "azure_c_shared_utility/optimize_size.h"
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| 21 | #include "azure_c_shared_utility/tlsio.h"
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| 22 | #include "azure_c_shared_utility/tlsio_mbedtls.h"
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| 23 | #include "azure_c_shared_utility/socketio.h"
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| 24 | #include "azure_c_shared_utility/crt_abstractions.h"
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| 25 | #include "azure_c_shared_utility/shared_util_options.h"
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| 26 | #include "azure_c_shared_utility/threadapi.h"
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| 27 |
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| 28 | static const char *const OPTION_UNDERLYING_IO_OPTIONS = "underlying_io_options";
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| 29 |
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| 30 | #define HANDSHAKE_TIMEOUT_MS 5000
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| 31 | #define HANDSHAKE_WAIT_INTERVAL_MS 10
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| 32 |
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| 33 | typedef enum TLSIO_STATE_ENUM_TAG
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| 34 | {
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| 35 | TLSIO_STATE_NOT_OPEN,
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| 36 | TLSIO_STATE_OPENING_UNDERLYING_IO,
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| 37 | TLSIO_STATE_IN_HANDSHAKE,
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| 38 | TLSIO_STATE_OPEN,
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| 39 | TLSIO_STATE_CLOSING,
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| 40 | TLSIO_STATE_ERROR
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| 41 | } TLSIO_STATE_ENUM;
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| 42 |
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| 43 | typedef struct TLS_IO_INSTANCE_TAG
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| 44 | {
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| 45 | XIO_HANDLE socket_io;
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| 46 | ON_BYTES_RECEIVED on_bytes_received;
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| 47 | ON_IO_OPEN_COMPLETE on_io_open_complete;
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| 48 | ON_IO_CLOSE_COMPLETE on_io_close_complete;
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| 49 | ON_IO_ERROR on_io_error;
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| 50 | void *on_bytes_received_context;
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| 51 | void *on_io_open_complete_context;
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| 52 | void *on_io_close_complete_context;
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| 53 | void *on_io_error_context;
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| 54 | TLSIO_STATE_ENUM tlsio_state;
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| 55 | unsigned char *socket_io_read_bytes;
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| 56 | size_t socket_io_read_byte_count;
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| 57 | ON_SEND_COMPLETE on_send_complete;
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| 58 | void *on_send_complete_callback_context;
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| 59 |
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| 60 | mbedtls_entropy_context entropy;
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| 61 | mbedtls_ctr_drbg_context ctr_drbg;
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| 62 | mbedtls_ssl_context ssl;
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| 63 | mbedtls_ssl_config config;
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| 64 | mbedtls_x509_crt trusted_certificates_parsed;
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| 65 | mbedtls_ssl_session ssn;
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| 66 | char *trusted_certificates;
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| 67 |
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| 68 | char *hostname;
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| 69 | mbedtls_x509_crt owncert;
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| 70 | mbedtls_pk_context pKey;
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| 71 |
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| 72 | char* x509_certificate;
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| 73 | char* x509_private_key;
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| 74 |
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| 75 | int tls_status;
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| 76 | } TLS_IO_INSTANCE;
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| 77 |
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| 78 | typedef enum TLS_STATE_TAG
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| 79 | {
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| 80 | TLS_STATE_NOT_INITIALIZED,
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| 81 | TLS_STATE_INITIALIZED,
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| 82 | TLS_STATE_CLOSING,
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| 83 | } TLS_STATE;
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| 84 |
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| 85 | static void indicate_error(TLS_IO_INSTANCE *tls_io_instance)
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| 86 | {
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| 87 | if ((tls_io_instance->tlsio_state == TLSIO_STATE_NOT_OPEN) || (tls_io_instance->tlsio_state == TLSIO_STATE_ERROR))
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| 88 | {
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| 89 | return;
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| 90 | }
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| 91 | tls_io_instance->tlsio_state = TLSIO_STATE_ERROR;
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| 92 | if (tls_io_instance->on_io_error != NULL)
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| 93 | {
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| 94 | tls_io_instance->on_io_error(tls_io_instance->on_io_error_context);
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| 95 | }
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| 96 | }
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| 97 |
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| 98 | static void indicate_open_complete(TLS_IO_INSTANCE *tls_io_instance, IO_OPEN_RESULT open_result)
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| 99 | {
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| 100 | if (tls_io_instance->on_io_open_complete != NULL)
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| 101 | {
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| 102 | tls_io_instance->on_io_open_complete(tls_io_instance->on_io_open_complete_context, open_result);
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| 103 | }
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| 104 | }
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| 105 |
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| 106 | static int decode_ssl_received_bytes(TLS_IO_INSTANCE *tls_io_instance)
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| 107 | {
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| 108 | int result = 0;
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| 109 | unsigned char buffer[64];
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| 110 | int rcv_bytes = 1;
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| 111 |
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| 112 | while (rcv_bytes > 0)
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| 113 | {
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| 114 | rcv_bytes = mbedtls_ssl_read(&tls_io_instance->ssl, buffer, sizeof(buffer));
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| 115 | if (rcv_bytes > 0)
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| 116 | {
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| 117 | if (tls_io_instance->on_bytes_received != NULL)
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| 118 | {
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| 119 | tls_io_instance->on_bytes_received(tls_io_instance->on_bytes_received_context, buffer, rcv_bytes);
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| 120 | }
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| 121 | }
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| 122 | }
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| 123 |
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| 124 | return result;
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| 125 | }
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| 126 |
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| 127 | static void on_underlying_io_open_complete(void *context, IO_OPEN_RESULT open_result)
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| 128 | {
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| 129 | if (context == NULL)
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| 130 | {
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| 131 | LogError("Invalid context NULL value passed");
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| 132 | }
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| 133 | else
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| 134 | {
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| 135 | TLS_IO_INSTANCE *tls_io_instance = (TLS_IO_INSTANCE *)context;
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| 136 | int result = 0;
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| 137 |
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| 138 | if (open_result != IO_OPEN_OK)
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| 139 | {
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| 140 | xio_close(tls_io_instance->socket_io, NULL, NULL);
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| 141 | tls_io_instance->tlsio_state = TLSIO_STATE_NOT_OPEN;
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| 142 | indicate_open_complete(tls_io_instance, IO_OPEN_ERROR);
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| 143 | }
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| 144 | else
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| 145 | {
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| 146 | tls_io_instance->tlsio_state = TLSIO_STATE_IN_HANDSHAKE;
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| 147 |
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| 148 | do
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| 149 | {
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| 150 | result = mbedtls_ssl_handshake(&tls_io_instance->ssl);
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| 151 | } while (result == MBEDTLS_ERR_SSL_WANT_READ || result == MBEDTLS_ERR_SSL_WANT_WRITE);
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| 152 |
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| 153 | if (result == 0)
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| 154 | {
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| 155 | tls_io_instance->tlsio_state = TLSIO_STATE_OPEN;
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| 156 | indicate_open_complete(tls_io_instance, IO_OPEN_OK);
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| 157 | }
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| 158 | else
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| 159 | {
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| 160 | xio_close(tls_io_instance->socket_io, NULL, NULL);
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| 161 | tls_io_instance->tlsio_state = TLSIO_STATE_NOT_OPEN;
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| 162 | indicate_open_complete(tls_io_instance, IO_OPEN_ERROR);
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| 163 | }
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| 164 | }
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| 165 | }
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| 166 | }
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| 167 |
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| 168 | static void on_underlying_io_bytes_received(void *context, const unsigned char *buffer, size_t size)
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| 169 | {
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| 170 | if (context != NULL)
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| 171 | {
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| 172 | TLS_IO_INSTANCE *tls_io_instance = (TLS_IO_INSTANCE *)context;
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| 173 |
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| 174 | unsigned char *new_socket_io_read_bytes = (unsigned char *)realloc(tls_io_instance->socket_io_read_bytes, tls_io_instance->socket_io_read_byte_count + size);
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| 175 |
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| 176 | if (new_socket_io_read_bytes == NULL)
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| 177 | {
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| 178 | tls_io_instance->tlsio_state = TLSIO_STATE_ERROR;
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| 179 | indicate_error(tls_io_instance);
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| 180 | }
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| 181 | else
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| 182 | {
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| 183 | tls_io_instance->socket_io_read_bytes = new_socket_io_read_bytes;
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| 184 | (void)memcpy(tls_io_instance->socket_io_read_bytes + tls_io_instance->socket_io_read_byte_count, buffer, size);
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| 185 | tls_io_instance->socket_io_read_byte_count += size;
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| 186 | }
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| 187 | }
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| 188 | else
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| 189 | {
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| 190 | LogError("NULL value passed in context");
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| 191 | }
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| 192 | }
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| 193 |
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| 194 | static void on_underlying_io_error(void *context)
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| 195 | {
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| 196 | if (context == NULL)
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| 197 | {
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| 198 | LogError("Invalid context NULL value passed");
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| 199 | }
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| 200 | else
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| 201 | {
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| 202 | TLS_IO_INSTANCE *tls_io_instance = (TLS_IO_INSTANCE *)context;
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| 203 |
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| 204 | switch (tls_io_instance->tlsio_state)
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| 205 | {
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| 206 | default:
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| 207 | case TLSIO_STATE_NOT_OPEN:
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| 208 | case TLSIO_STATE_ERROR:
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| 209 | break;
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| 210 |
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| 211 | case TLSIO_STATE_OPENING_UNDERLYING_IO:
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| 212 | case TLSIO_STATE_IN_HANDSHAKE:
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| 213 | // Existing socket impls are all synchronous close, and this
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| 214 | // adapter does not yet support async close.
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| 215 | xio_close(tls_io_instance->socket_io, NULL, NULL);
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| 216 | tls_io_instance->tlsio_state = TLSIO_STATE_NOT_OPEN;
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| 217 | indicate_open_complete(tls_io_instance, IO_OPEN_ERROR);
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| 218 | break;
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| 219 |
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| 220 | case TLSIO_STATE_OPEN:
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| 221 | indicate_error(tls_io_instance);
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| 222 | break;
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| 223 | }
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| 224 | }
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| 225 | }
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| 226 |
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| 227 | static void on_underlying_io_close_complete_during_close(void *context)
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| 228 | {
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| 229 | if (context == NULL)
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| 230 | {
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| 231 | LogError("NULL value passed in context");
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| 232 | }
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| 233 | else
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| 234 | {
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| 235 | TLS_IO_INSTANCE *tls_io_instance = (TLS_IO_INSTANCE *)context;
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| 236 |
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| 237 | tls_io_instance->tlsio_state = TLSIO_STATE_NOT_OPEN;
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| 238 |
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| 239 | if (tls_io_instance->on_io_close_complete != NULL)
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| 240 | {
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| 241 | tls_io_instance->on_io_close_complete(tls_io_instance->on_io_close_complete_context);
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| 242 | }
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| 243 | }
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| 244 | }
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| 245 |
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| 246 | static int on_io_recv(void *context, unsigned char *buf, size_t sz)
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| 247 | {
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| 248 | int result;
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| 249 | if (context == NULL)
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| 250 | {
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| 251 | LogError("Invalid context NULL value passed");
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| 252 | result = MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
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| 253 | }
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| 254 | else
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| 255 | {
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| 256 | TLS_IO_INSTANCE *tls_io_instance = (TLS_IO_INSTANCE *)context;
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| 257 | unsigned char *new_socket_io_read_bytes;
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| 258 | int pending = 0;
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| 259 |
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| 260 | while (tls_io_instance->socket_io_read_byte_count == 0)
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| 261 | {
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| 262 | xio_dowork(tls_io_instance->socket_io);
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| 263 |
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| 264 | if (tls_io_instance->tlsio_state == TLSIO_STATE_OPEN)
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| 265 | {
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| 266 | break;
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| 267 | }
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| 268 | else if (tls_io_instance->tlsio_state == TLSIO_STATE_NOT_OPEN ||
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| 269 | tls_io_instance->tlsio_state == TLSIO_STATE_CLOSING ||
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| 270 | tls_io_instance->tlsio_state == TLSIO_STATE_ERROR)
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| 271 | {
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| 272 | // Underlying io error, exit.
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| 273 | return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
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| 274 | }
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| 275 | else
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| 276 | {
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| 277 | // Handkshake
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| 278 | if (tls_io_instance->socket_io_read_byte_count == 0)
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| 279 | {
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| 280 | if (pending++ >= HANDSHAKE_TIMEOUT_MS / HANDSHAKE_WAIT_INTERVAL_MS)
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| 281 | {
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| 282 | // The connection is close from server side and no response.
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| 283 | LogError("Tlsio_Failure: encountered unknow connection issue, the connection will be restarted.");
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| 284 | indicate_error(tls_io_instance);
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| 285 | return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
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| 286 | }
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| 287 | ThreadAPI_Sleep(HANDSHAKE_WAIT_INTERVAL_MS);
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| 288 | }
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| 289 | }
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| 290 | }
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| 291 |
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| 292 | result = tls_io_instance->socket_io_read_byte_count;
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| 293 | if (result > (int)sz)
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| 294 | {
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| 295 | result = sz;
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| 296 | }
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| 297 |
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| 298 | if (result > 0)
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| 299 | {
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| 300 | (void)memcpy((void *)buf, tls_io_instance->socket_io_read_bytes, result);
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| 301 | (void)memmove(tls_io_instance->socket_io_read_bytes, tls_io_instance->socket_io_read_bytes + result, tls_io_instance->socket_io_read_byte_count - result);
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| 302 | tls_io_instance->socket_io_read_byte_count -= result;
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| 303 | if (tls_io_instance->socket_io_read_byte_count > 0)
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| 304 | {
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| 305 | new_socket_io_read_bytes = (unsigned char *)realloc(tls_io_instance->socket_io_read_bytes, tls_io_instance->socket_io_read_byte_count);
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| 306 | if (new_socket_io_read_bytes != NULL)
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| 307 | {
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| 308 | tls_io_instance->socket_io_read_bytes = new_socket_io_read_bytes;
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| 309 | }
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| 310 | }
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| 311 | else
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| 312 | {
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| 313 | free(tls_io_instance->socket_io_read_bytes);
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| 314 | tls_io_instance->socket_io_read_bytes = NULL;
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| 315 | }
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| 316 | }
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| 317 |
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| 318 | if ((result == 0) && (tls_io_instance->tlsio_state == TLSIO_STATE_OPEN))
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| 319 | {
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| 320 | result = MBEDTLS_ERR_SSL_WANT_READ;
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| 321 | }
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| 322 | }
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| 323 | return result;
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| 324 | }
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| 325 |
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| 326 | static int on_io_send(void *context, const unsigned char *buf, size_t sz)
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| 327 | {
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| 328 | int result;
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| 329 | if (context == NULL)
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| 330 | {
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| 331 | LogError("Invalid context NULL value passed");
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| 332 | result = 0;
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| 333 | }
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| 334 | else
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| 335 | {
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| 336 | TLS_IO_INSTANCE *tls_io_instance = (TLS_IO_INSTANCE *)context;
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| 337 |
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| 338 | if (xio_send(tls_io_instance->socket_io, buf, sz, tls_io_instance->on_send_complete, tls_io_instance->on_send_complete_callback_context) != 0)
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| 339 | {
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| 340 | indicate_error(tls_io_instance);
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| 341 | result = -1;
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| 342 | }
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| 343 | else
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| 344 | {
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| 345 | result = sz;
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| 346 | }
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| 347 | }
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| 348 | return result;
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| 349 | }
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| 350 |
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| 351 | static int tlsio_entropy_poll(void *v, unsigned char *output, size_t len, size_t *olen)
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| 352 | {
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| 353 | (void)v;
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| 354 | int result = 0;
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| 355 | srand((unsigned int)time(NULL));
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| 356 | for (uint16_t i = 0; i < len; i++)
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| 357 | {
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| 358 | output[i] = rand() % 256;
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| 359 | }
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| 360 | *olen = len;
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| 361 | return result;
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| 362 | }
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| 363 |
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| 364 | // Un-initialize mbedTLS
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| 365 | static void mbedtls_uninit(TLS_IO_INSTANCE *tls_io_instance)
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| 366 | {
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| 367 | if (tls_io_instance->tls_status != TLS_STATE_NOT_INITIALIZED)
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| 368 | {
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| 369 | // mbedTLS cleanup...
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| 370 | mbedtls_ssl_close_notify(&tls_io_instance->ssl);
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| 371 | mbedtls_ssl_free(&tls_io_instance->ssl);
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| 372 | mbedtls_ssl_config_free(&tls_io_instance->config);
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| 373 | mbedtls_x509_crt_free(&tls_io_instance->trusted_certificates_parsed);
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| 374 | mbedtls_ctr_drbg_free(&tls_io_instance->ctr_drbg);
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| 375 | mbedtls_entropy_free(&tls_io_instance->entropy);
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| 376 |
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| 377 | tls_io_instance->tls_status = TLS_STATE_NOT_INITIALIZED;
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| 378 | }
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| 379 | else
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| 380 | {
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| 381 | LogError("Uninitialzing when not previously initialized");
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| 382 | }
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| 383 | }
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| 384 |
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| 385 | static void mbedtls_init(TLS_IO_INSTANCE *tls_io_instance)
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| 386 | {
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| 387 | const char* pers = "azure_iot_client";
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| 388 | if (tls_io_instance->tls_status != TLS_STATE_INITIALIZED)
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| 389 | {
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| 390 | if (tls_io_instance->tls_status == TLS_STATE_CLOSING)
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| 391 | {
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| 392 | // The underlying connection has been closed, so here un-initialize first
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| 393 | mbedtls_uninit(tls_io_instance);
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| 394 | }
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| 395 |
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| 396 | // mbedTLS initialize...
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| 397 | mbedtls_x509_crt_init(&tls_io_instance->trusted_certificates_parsed);
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| 398 |
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| 399 | mbedtls_entropy_init(&tls_io_instance->entropy);
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| 400 | // Add a weak entropy source here,avoid some platform doesn't have strong / hardware entropy
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| 401 | mbedtls_entropy_add_source(&tls_io_instance->entropy, tlsio_entropy_poll, NULL, MBEDTLS_ENTROPY_MAX_GATHER, MBEDTLS_ENTROPY_SOURCE_WEAK);
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| 402 |
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| 403 | mbedtls_ctr_drbg_init(&tls_io_instance->ctr_drbg);
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| 404 | mbedtls_ctr_drbg_seed(&tls_io_instance->ctr_drbg, mbedtls_entropy_func, &tls_io_instance->entropy, (const unsigned char *)pers, strlen(pers));
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| 405 |
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| 406 | mbedtls_ssl_config_init(&tls_io_instance->config);
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| 407 | mbedtls_ssl_config_defaults(&tls_io_instance->config, MBEDTLS_SSL_IS_CLIENT, MBEDTLS_SSL_TRANSPORT_STREAM, MBEDTLS_SSL_PRESET_DEFAULT);
|
---|
| 408 | mbedtls_ssl_conf_rng(&tls_io_instance->config, mbedtls_ctr_drbg_random, &tls_io_instance->ctr_drbg);
|
---|
| 409 | mbedtls_ssl_conf_authmode(&tls_io_instance->config, MBEDTLS_SSL_VERIFY_REQUIRED);
|
---|
| 410 | mbedtls_ssl_conf_min_version(&tls_io_instance->config, MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3); // v1.2
|
---|
| 411 | #if defined(MBEDTLS_SSL_RENEGOTIATION)
|
---|
| 412 | mbedtls_ssl_conf_renegotiation(&tls_io_instance->config, MBEDTLS_SSL_RENEGOTIATION_ENABLED);
|
---|
| 413 | #endif
|
---|
| 414 |
|
---|
| 415 | mbedtls_ssl_init(&tls_io_instance->ssl);
|
---|
| 416 | mbedtls_ssl_set_bio(&tls_io_instance->ssl, tls_io_instance, on_io_send, on_io_recv, NULL);
|
---|
| 417 | mbedtls_ssl_set_hostname(&tls_io_instance->ssl, tls_io_instance->hostname);
|
---|
| 418 |
|
---|
| 419 | mbedtls_ssl_session_init(&tls_io_instance->ssn);
|
---|
| 420 |
|
---|
| 421 | mbedtls_ssl_set_session(&tls_io_instance->ssl, &tls_io_instance->ssn);
|
---|
| 422 | mbedtls_ssl_setup(&tls_io_instance->ssl, &tls_io_instance->config);
|
---|
| 423 |
|
---|
| 424 | tls_io_instance->tls_status = TLS_STATE_INITIALIZED;
|
---|
| 425 | }
|
---|
| 426 | }
|
---|
| 427 |
|
---|
| 428 | CONCRETE_IO_HANDLE tlsio_mbedtls_create(void *io_create_parameters)
|
---|
| 429 | {
|
---|
| 430 | TLSIO_CONFIG *tls_io_config = (TLSIO_CONFIG *)io_create_parameters;
|
---|
| 431 | TLS_IO_INSTANCE *result;
|
---|
| 432 |
|
---|
| 433 | if (tls_io_config == NULL)
|
---|
| 434 | {
|
---|
| 435 | LogError("NULL tls_io_config");
|
---|
| 436 | result = NULL;
|
---|
| 437 | }
|
---|
| 438 | else
|
---|
| 439 | {
|
---|
| 440 | /* Codes_SRS_TLSIO_MBED_OS5_TLS_99_006: [ The tlsio_mbedtls_create shall return NULL if allocating memory for TLS_IO_INSTANCE failed. ]*/
|
---|
| 441 | result = calloc(1, sizeof(TLS_IO_INSTANCE));
|
---|
| 442 | if (result != NULL)
|
---|
| 443 | {
|
---|
| 444 | SOCKETIO_CONFIG socketio_config;
|
---|
| 445 | const IO_INTERFACE_DESCRIPTION *underlying_io_interface;
|
---|
| 446 | void *io_interface_parameters;
|
---|
| 447 |
|
---|
| 448 | if (tls_io_config->underlying_io_interface != NULL)
|
---|
| 449 | {
|
---|
| 450 | underlying_io_interface = tls_io_config->underlying_io_interface;
|
---|
| 451 | io_interface_parameters = tls_io_config->underlying_io_parameters;
|
---|
| 452 | }
|
---|
| 453 | else
|
---|
| 454 | {
|
---|
| 455 | socketio_config.hostname = tls_io_config->hostname;
|
---|
| 456 | socketio_config.port = tls_io_config->port;
|
---|
| 457 | socketio_config.accepted_socket = NULL;
|
---|
| 458 | underlying_io_interface = socketio_get_interface_description();
|
---|
| 459 | io_interface_parameters = &socketio_config;
|
---|
| 460 | }
|
---|
| 461 |
|
---|
| 462 | if (underlying_io_interface == NULL)
|
---|
| 463 | {
|
---|
| 464 | free(result);
|
---|
| 465 | result = NULL;
|
---|
| 466 | LogError("Failed getting socket IO interface description.");
|
---|
| 467 | }
|
---|
| 468 | else
|
---|
| 469 | {
|
---|
| 470 | if (mallocAndStrcpy_s((char **)&result->hostname, tls_io_config->hostname) != 0)
|
---|
| 471 | {
|
---|
| 472 | free(result);
|
---|
| 473 | result = NULL;
|
---|
| 474 | LogError("Failure allocating hostname.");
|
---|
| 475 | }
|
---|
| 476 | else if ((result->socket_io = xio_create(underlying_io_interface, io_interface_parameters)) == NULL)
|
---|
| 477 | {
|
---|
| 478 | LogError("socket xio create failed");
|
---|
| 479 | free(result->hostname);
|
---|
| 480 | free(result);
|
---|
| 481 | result = NULL;
|
---|
| 482 | }
|
---|
| 483 | else
|
---|
| 484 | {
|
---|
| 485 | result->tls_status = TLS_STATE_NOT_INITIALIZED;
|
---|
| 486 | mbedtls_init((void*)result);
|
---|
| 487 |
|
---|
| 488 | result->tlsio_state = TLSIO_STATE_NOT_OPEN;
|
---|
| 489 | }
|
---|
| 490 | }
|
---|
| 491 | }
|
---|
| 492 | else
|
---|
| 493 | {
|
---|
| 494 | LogError("Failure allocating TLS object");
|
---|
| 495 | }
|
---|
| 496 | }
|
---|
| 497 |
|
---|
| 498 | return result;
|
---|
| 499 | }
|
---|
| 500 |
|
---|
| 501 | void tlsio_mbedtls_destroy(CONCRETE_IO_HANDLE tls_io)
|
---|
| 502 | {
|
---|
| 503 | if (tls_io != NULL)
|
---|
| 504 | {
|
---|
| 505 | TLS_IO_INSTANCE *tls_io_instance = (TLS_IO_INSTANCE *)tls_io;
|
---|
| 506 |
|
---|
| 507 | mbedtls_uninit(tls_io_instance);
|
---|
| 508 |
|
---|
| 509 | xio_close(tls_io_instance->socket_io, NULL, NULL);
|
---|
| 510 |
|
---|
| 511 | if (tls_io_instance->socket_io_read_bytes != NULL)
|
---|
| 512 | {
|
---|
| 513 | free(tls_io_instance->socket_io_read_bytes);
|
---|
| 514 | tls_io_instance->socket_io_read_bytes = NULL;
|
---|
| 515 | }
|
---|
| 516 | xio_destroy(tls_io_instance->socket_io);
|
---|
| 517 | if (tls_io_instance->hostname != NULL)
|
---|
| 518 | {
|
---|
| 519 | free(tls_io_instance->hostname);
|
---|
| 520 | tls_io_instance->hostname = NULL;
|
---|
| 521 | }
|
---|
| 522 | if (tls_io_instance->trusted_certificates != NULL)
|
---|
| 523 | {
|
---|
| 524 | free(tls_io_instance->trusted_certificates);
|
---|
| 525 | tls_io_instance->trusted_certificates = NULL;
|
---|
| 526 | }
|
---|
| 527 | if (tls_io_instance->x509_certificate != NULL)
|
---|
| 528 | {
|
---|
| 529 | free(tls_io_instance->x509_certificate);
|
---|
| 530 | tls_io_instance->x509_certificate = NULL;
|
---|
| 531 | }
|
---|
| 532 | if (tls_io_instance->x509_private_key != NULL)
|
---|
| 533 | {
|
---|
| 534 | free(tls_io_instance->x509_private_key);
|
---|
| 535 | tls_io_instance->x509_private_key = NULL;
|
---|
| 536 | }
|
---|
| 537 | free(tls_io);
|
---|
| 538 | }
|
---|
| 539 | }
|
---|
| 540 |
|
---|
| 541 | int tlsio_mbedtls_open(CONCRETE_IO_HANDLE tls_io, ON_IO_OPEN_COMPLETE on_io_open_complete, void *on_io_open_complete_context, ON_BYTES_RECEIVED on_bytes_received, void *on_bytes_received_context, ON_IO_ERROR on_io_error, void *on_io_error_context)
|
---|
| 542 | {
|
---|
| 543 | int result = 0;
|
---|
| 544 |
|
---|
| 545 | if (tls_io == NULL)
|
---|
| 546 | {
|
---|
| 547 | LogError("Invalid parameter specified tls_io: NULL");
|
---|
| 548 | result = MU_FAILURE;
|
---|
| 549 | }
|
---|
| 550 | else
|
---|
| 551 | {
|
---|
| 552 | TLS_IO_INSTANCE *tls_io_instance = (TLS_IO_INSTANCE *)tls_io;
|
---|
| 553 |
|
---|
| 554 | if (tls_io_instance->tlsio_state != TLSIO_STATE_NOT_OPEN)
|
---|
| 555 | {
|
---|
| 556 | LogError("IO should not be open: %d", tls_io_instance->tlsio_state);
|
---|
| 557 | result = MU_FAILURE;
|
---|
| 558 | }
|
---|
| 559 | else
|
---|
| 560 | {
|
---|
| 561 |
|
---|
| 562 | tls_io_instance->on_bytes_received = on_bytes_received;
|
---|
| 563 | tls_io_instance->on_bytes_received_context = on_bytes_received_context;
|
---|
| 564 |
|
---|
| 565 | tls_io_instance->on_io_open_complete = on_io_open_complete;
|
---|
| 566 | tls_io_instance->on_io_open_complete_context = on_io_open_complete_context;
|
---|
| 567 |
|
---|
| 568 | tls_io_instance->on_io_error = on_io_error;
|
---|
| 569 | tls_io_instance->on_io_error_context = on_io_error_context;
|
---|
| 570 |
|
---|
| 571 | tls_io_instance->tlsio_state = TLSIO_STATE_OPENING_UNDERLYING_IO;
|
---|
| 572 |
|
---|
| 573 | mbedtls_ssl_session_reset(&tls_io_instance->ssl);
|
---|
| 574 |
|
---|
| 575 | if (xio_open(tls_io_instance->socket_io, on_underlying_io_open_complete, tls_io_instance, on_underlying_io_bytes_received, tls_io_instance, on_underlying_io_error, tls_io_instance) != 0)
|
---|
| 576 | {
|
---|
| 577 |
|
---|
| 578 | LogError("Underlying IO open failed");
|
---|
| 579 | tls_io_instance->tlsio_state = TLSIO_STATE_NOT_OPEN;
|
---|
| 580 | result = MU_FAILURE;
|
---|
| 581 | }
|
---|
| 582 | }
|
---|
| 583 | }
|
---|
| 584 | return result;
|
---|
| 585 | }
|
---|
| 586 |
|
---|
| 587 | int tlsio_mbedtls_close(CONCRETE_IO_HANDLE tls_io, ON_IO_CLOSE_COMPLETE on_io_close_complete, void *callback_context)
|
---|
| 588 | {
|
---|
| 589 | int result = 0;
|
---|
| 590 |
|
---|
| 591 | if (tls_io == NULL)
|
---|
| 592 | {
|
---|
| 593 | LogError("Invalid parameter specified tls_io: NULL");
|
---|
| 594 | result = MU_FAILURE;
|
---|
| 595 | }
|
---|
| 596 | else
|
---|
| 597 | {
|
---|
| 598 | TLS_IO_INSTANCE *tls_io_instance = (TLS_IO_INSTANCE *)tls_io;
|
---|
| 599 |
|
---|
| 600 | if ((tls_io_instance->tlsio_state == TLSIO_STATE_NOT_OPEN) ||
|
---|
| 601 | (tls_io_instance->tlsio_state == TLSIO_STATE_CLOSING))
|
---|
| 602 | {
|
---|
| 603 | LogError("IO should not be closed: %d", tls_io_instance->tlsio_state);
|
---|
| 604 | result = MU_FAILURE;
|
---|
| 605 | }
|
---|
| 606 | else
|
---|
| 607 | {
|
---|
| 608 | if (tls_io_instance->tls_status == TLS_STATE_INITIALIZED)
|
---|
| 609 | {
|
---|
| 610 | mbedtls_ssl_close_notify(&tls_io_instance->ssl);
|
---|
| 611 | }
|
---|
| 612 |
|
---|
| 613 | tls_io_instance->tlsio_state = TLSIO_STATE_CLOSING;
|
---|
| 614 | tls_io_instance->on_io_close_complete = on_io_close_complete;
|
---|
| 615 | tls_io_instance->on_io_close_complete_context = callback_context;
|
---|
| 616 | if (xio_close(tls_io_instance->socket_io, on_underlying_io_close_complete_during_close, tls_io_instance) != 0)
|
---|
| 617 | {
|
---|
| 618 | LogError("xio_close failed");
|
---|
| 619 | result = MU_FAILURE;
|
---|
| 620 | }
|
---|
| 621 | else
|
---|
| 622 | {
|
---|
| 623 | result = 0;
|
---|
| 624 | }
|
---|
| 625 | }
|
---|
| 626 | }
|
---|
| 627 | return result;
|
---|
| 628 | }
|
---|
| 629 |
|
---|
| 630 | int tlsio_mbedtls_send(CONCRETE_IO_HANDLE tls_io, const void *buffer, size_t size, ON_SEND_COMPLETE on_send_complete, void *callback_context)
|
---|
| 631 | {
|
---|
| 632 | int result = 0;
|
---|
| 633 |
|
---|
| 634 | if (tls_io == NULL || (buffer == NULL) || (size == 0))
|
---|
| 635 | {
|
---|
| 636 | LogError("Invalid parameter specified tls_io: %p, buffer: %p, size: %ul", tls_io, buffer, (unsigned int)size);
|
---|
| 637 | result = MU_FAILURE;
|
---|
| 638 | }
|
---|
| 639 | else
|
---|
| 640 | {
|
---|
| 641 | TLS_IO_INSTANCE *tls_io_instance = (TLS_IO_INSTANCE *)tls_io;
|
---|
| 642 | if (tls_io_instance->tlsio_state != TLSIO_STATE_OPEN)
|
---|
| 643 | {
|
---|
| 644 | LogError("Invalid state specified %d", tls_io_instance->tlsio_state);
|
---|
| 645 | result = MU_FAILURE;
|
---|
| 646 | }
|
---|
| 647 | else
|
---|
| 648 | {
|
---|
| 649 | tls_io_instance->on_send_complete = on_send_complete;
|
---|
| 650 | tls_io_instance->on_send_complete_callback_context = callback_context;
|
---|
| 651 | int res = mbedtls_ssl_write(&tls_io_instance->ssl, buffer, size);
|
---|
| 652 | if (res != (int)size)
|
---|
| 653 | {
|
---|
| 654 | LogError("Unexpected data size returned from mbedtls_ssl_write %d/%d", res, (int)size);
|
---|
| 655 | result = MU_FAILURE;
|
---|
| 656 | }
|
---|
| 657 | else
|
---|
| 658 | {
|
---|
| 659 | result = 0;
|
---|
| 660 | }
|
---|
| 661 | tls_io_instance->on_send_complete = NULL;
|
---|
| 662 | tls_io_instance->on_send_complete_callback_context = NULL;
|
---|
| 663 | }
|
---|
| 664 | }
|
---|
| 665 | return result;
|
---|
| 666 | }
|
---|
| 667 |
|
---|
| 668 | void tlsio_mbedtls_dowork(CONCRETE_IO_HANDLE tls_io)
|
---|
| 669 | {
|
---|
| 670 | if (tls_io != NULL)
|
---|
| 671 | {
|
---|
| 672 | TLS_IO_INSTANCE *tls_io_instance = (TLS_IO_INSTANCE *)tls_io;
|
---|
| 673 |
|
---|
| 674 | if (tls_io_instance->tlsio_state == TLSIO_STATE_OPENING_UNDERLYING_IO)
|
---|
| 675 | {
|
---|
| 676 | xio_dowork(tls_io_instance->socket_io);
|
---|
| 677 | }
|
---|
| 678 | else if (tls_io_instance->tlsio_state == TLSIO_STATE_IN_HANDSHAKE || tls_io_instance->tlsio_state == TLSIO_STATE_OPEN)
|
---|
| 679 | {
|
---|
| 680 | decode_ssl_received_bytes(tls_io_instance);
|
---|
| 681 | // Note: no need to call xio_dowork here because it's called in on_io_recv which is the callback function of decode_ssl_received_bytes
|
---|
| 682 | }
|
---|
| 683 | }
|
---|
| 684 | }
|
---|
| 685 |
|
---|
| 686 | /*this function will clone an option given by name and value*/
|
---|
| 687 | static void *tlsio_mbedtls_CloneOption(const char *name, const void *value)
|
---|
| 688 | {
|
---|
| 689 | void *result = NULL;
|
---|
| 690 | if (name == NULL || value == NULL)
|
---|
| 691 | {
|
---|
| 692 | LogError("invalid parameter detected: const char* name=%p, const void* value=%p", name, value);
|
---|
| 693 | result = NULL;
|
---|
| 694 | }
|
---|
| 695 | else
|
---|
| 696 | {
|
---|
| 697 | if (strcmp(name, OPTION_UNDERLYING_IO_OPTIONS) == 0)
|
---|
| 698 | {
|
---|
| 699 | result = (void *)value;
|
---|
| 700 | }
|
---|
| 701 | else if (strcmp(name, OPTION_TRUSTED_CERT) == 0)
|
---|
| 702 | {
|
---|
| 703 | if (mallocAndStrcpy_s((char **)&result, value) != 0)
|
---|
| 704 | {
|
---|
| 705 | LogError("unable to mallocAndStrcpy_s TrustedCerts value");
|
---|
| 706 | result = NULL;
|
---|
| 707 | }
|
---|
| 708 | else
|
---|
| 709 | {
|
---|
| 710 | /*return as is*/
|
---|
| 711 | }
|
---|
| 712 | }
|
---|
| 713 | else if (strcmp(name, SU_OPTION_X509_CERT) == 0)
|
---|
| 714 | {
|
---|
| 715 | if (mallocAndStrcpy_s((char**)&result, value) != 0)
|
---|
| 716 | {
|
---|
| 717 | LogError("unable to mallocAndStrcpy_s x509certificate value");
|
---|
| 718 | result = NULL;
|
---|
| 719 | }
|
---|
| 720 | else
|
---|
| 721 | {
|
---|
| 722 | /*return as is*/
|
---|
| 723 | }
|
---|
| 724 | }
|
---|
| 725 | else if (strcmp(name, SU_OPTION_X509_PRIVATE_KEY) == 0)
|
---|
| 726 | {
|
---|
| 727 | if (mallocAndStrcpy_s((char**)&result, value) != 0)
|
---|
| 728 | {
|
---|
| 729 | LogError("unable to mallocAndStrcpy_s x509privatekey value");
|
---|
| 730 | result = NULL;
|
---|
| 731 | }
|
---|
| 732 | else
|
---|
| 733 | {
|
---|
| 734 | /*return as is*/
|
---|
| 735 | }
|
---|
| 736 | }
|
---|
| 737 | else if (strcmp(name, OPTION_X509_ECC_CERT) == 0)
|
---|
| 738 | {
|
---|
| 739 | if (mallocAndStrcpy_s((char**)&result, value) != 0)
|
---|
| 740 | {
|
---|
| 741 | LogError("unable to mallocAndStrcpy_s x509EccCertificate value");
|
---|
| 742 | result = NULL;
|
---|
| 743 | }
|
---|
| 744 | else
|
---|
| 745 | {
|
---|
| 746 | /*return as is*/
|
---|
| 747 | }
|
---|
| 748 | }
|
---|
| 749 | else if (strcmp(name, OPTION_X509_ECC_KEY) == 0)
|
---|
| 750 | {
|
---|
| 751 | if (mallocAndStrcpy_s((char**)&result, value) != 0)
|
---|
| 752 | {
|
---|
| 753 | LogError("unable to mallocAndStrcpy_s x509EccKey value");
|
---|
| 754 | result = NULL;
|
---|
| 755 | }
|
---|
| 756 | else
|
---|
| 757 | {
|
---|
| 758 | /*return as is*/
|
---|
| 759 | }
|
---|
| 760 | }
|
---|
| 761 | else
|
---|
| 762 | {
|
---|
| 763 | LogError("not handled option : %s", name);
|
---|
| 764 | result = NULL;
|
---|
| 765 | }
|
---|
| 766 | }
|
---|
| 767 | return result;
|
---|
| 768 | }
|
---|
| 769 |
|
---|
| 770 | /*this function destroys an option previously created*/
|
---|
| 771 | static void tlsio_mbedtls_DestroyOption(const char *name, const void *value)
|
---|
| 772 | {
|
---|
| 773 | /*since all options for this layer are actually string copies., disposing of one is just calling free*/
|
---|
| 774 | if (name == NULL || value == NULL)
|
---|
| 775 | {
|
---|
| 776 | LogError("invalid parameter detected: const char* name=%p, const void* value=%p", name, value);
|
---|
| 777 | }
|
---|
| 778 | else
|
---|
| 779 | {
|
---|
| 780 | if (
|
---|
| 781 | (strcmp(name, OPTION_TRUSTED_CERT) == 0) ||
|
---|
| 782 | (strcmp(name, SU_OPTION_X509_CERT) == 0) ||
|
---|
| 783 | (strcmp(name, SU_OPTION_X509_PRIVATE_KEY) == 0) ||
|
---|
| 784 | (strcmp(name, OPTION_X509_ECC_CERT) == 0) ||
|
---|
| 785 | (strcmp(name, OPTION_X509_ECC_KEY) == 0)
|
---|
| 786 | )
|
---|
| 787 | {
|
---|
| 788 | free((void*)value);
|
---|
| 789 | }
|
---|
| 790 | else if (strcmp(name, OPTION_UNDERLYING_IO_OPTIONS) == 0)
|
---|
| 791 | {
|
---|
| 792 | OptionHandler_Destroy((OPTIONHANDLER_HANDLE)value);
|
---|
| 793 | }
|
---|
| 794 | else
|
---|
| 795 | {
|
---|
| 796 | LogError("not handled option : %s", name);
|
---|
| 797 | }
|
---|
| 798 | }
|
---|
| 799 | }
|
---|
| 800 |
|
---|
| 801 | int tlsio_mbedtls_setoption(CONCRETE_IO_HANDLE tls_io, const char *optionName, const void *value)
|
---|
| 802 | {
|
---|
| 803 | int result = 0;
|
---|
| 804 |
|
---|
| 805 | if (tls_io == NULL || optionName == NULL)
|
---|
| 806 | {
|
---|
| 807 | result = MU_FAILURE;
|
---|
| 808 | }
|
---|
| 809 | else
|
---|
| 810 | {
|
---|
| 811 | TLS_IO_INSTANCE *tls_io_instance = (TLS_IO_INSTANCE *)tls_io;
|
---|
| 812 |
|
---|
| 813 | if (strcmp(OPTION_TRUSTED_CERT, optionName) == 0)
|
---|
| 814 | {
|
---|
| 815 | if (tls_io_instance->trusted_certificates != NULL)
|
---|
| 816 | {
|
---|
| 817 | // Free the memory if it has been previously allocated
|
---|
| 818 | free(tls_io_instance->trusted_certificates);
|
---|
| 819 | tls_io_instance->trusted_certificates = NULL;
|
---|
| 820 | }
|
---|
| 821 | if (mallocAndStrcpy_s(&tls_io_instance->trusted_certificates, (const char *)value) != 0)
|
---|
| 822 | {
|
---|
| 823 | LogError("unable to mallocAndStrcpy_s");
|
---|
| 824 | result = MU_FAILURE;
|
---|
| 825 | }
|
---|
| 826 | else
|
---|
| 827 | {
|
---|
| 828 | int parse_result = mbedtls_x509_crt_parse(&tls_io_instance->trusted_certificates_parsed, (const unsigned char *)value, (int)(strlen(value) + 1));
|
---|
| 829 | if (parse_result != 0)
|
---|
| 830 | {
|
---|
| 831 | LogInfo("Malformed pem certificate");
|
---|
| 832 | result = MU_FAILURE;
|
---|
| 833 | }
|
---|
| 834 | else
|
---|
| 835 | {
|
---|
| 836 | mbedtls_ssl_conf_ca_chain(&tls_io_instance->config, &tls_io_instance->trusted_certificates_parsed, NULL);
|
---|
| 837 | }
|
---|
| 838 | }
|
---|
| 839 | }
|
---|
| 840 | else if (strcmp(SU_OPTION_X509_CERT, optionName) == 0 || strcmp(OPTION_X509_ECC_CERT, optionName) == 0)
|
---|
| 841 | {
|
---|
| 842 | if (tls_io_instance->x509_certificate != NULL)
|
---|
| 843 | {
|
---|
| 844 | // Free the memory if it has been previously allocated
|
---|
| 845 | free(tls_io_instance->x509_certificate);
|
---|
| 846 | }
|
---|
| 847 |
|
---|
| 848 | if (mallocAndStrcpy_s(&tls_io_instance->x509_certificate, (const char *)value) != 0)
|
---|
| 849 | {
|
---|
| 850 | LogError("unable to mallocAndStrcpy_s on certificate");
|
---|
| 851 | result = MU_FAILURE;
|
---|
| 852 | }
|
---|
| 853 | else if (mbedtls_x509_crt_parse(&tls_io_instance->owncert, (const unsigned char *)value, (int)(strlen(value) + 1)) != 0)
|
---|
| 854 | {
|
---|
| 855 | LogError("failure parsing certificate");
|
---|
| 856 | free(tls_io_instance->x509_certificate);
|
---|
| 857 | result = MU_FAILURE;
|
---|
| 858 | }
|
---|
| 859 | else if (tls_io_instance->pKey.pk_info != NULL && mbedtls_ssl_conf_own_cert(&tls_io_instance->config, &tls_io_instance->owncert, &tls_io_instance->pKey) != 0)
|
---|
| 860 | {
|
---|
| 861 | LogError("failure calling mbedtls_ssl_conf_own_cert");
|
---|
| 862 | free(tls_io_instance->x509_certificate);
|
---|
| 863 | result = MU_FAILURE;
|
---|
| 864 | }
|
---|
| 865 | else
|
---|
| 866 | {
|
---|
| 867 | result = 0;
|
---|
| 868 | }
|
---|
| 869 | }
|
---|
| 870 | else if (strcmp(SU_OPTION_X509_PRIVATE_KEY, optionName) == 0 || strcmp(OPTION_X509_ECC_KEY, optionName) == 0)
|
---|
| 871 | {
|
---|
| 872 | if (tls_io_instance->x509_private_key != NULL)
|
---|
| 873 | {
|
---|
| 874 | // Free the memory if it has been previously allocated
|
---|
| 875 | free(tls_io_instance->x509_private_key);
|
---|
| 876 | }
|
---|
| 877 |
|
---|
| 878 | if (mallocAndStrcpy_s(&tls_io_instance->x509_private_key, (const char *)value) != 0)
|
---|
| 879 | {
|
---|
| 880 | LogError("unable to mallocAndStrcpy_s on private key");
|
---|
| 881 | result = MU_FAILURE;
|
---|
| 882 | }
|
---|
| 883 | else if (mbedtls_pk_parse_key(&tls_io_instance->pKey, (const unsigned char *)value, (int)(strlen(value) + 1), NULL, 0) != 0)
|
---|
| 884 | {
|
---|
| 885 | LogError("failure parsing Private Key");
|
---|
| 886 | free(tls_io_instance->x509_private_key);
|
---|
| 887 | result = MU_FAILURE;
|
---|
| 888 | }
|
---|
| 889 | else if (tls_io_instance->owncert.version > 0 && mbedtls_ssl_conf_own_cert(&tls_io_instance->config, &tls_io_instance->owncert, &tls_io_instance->pKey))
|
---|
| 890 | {
|
---|
| 891 | LogError("failure calling mbedtls_ssl_conf_own_cert on cert");
|
---|
| 892 | free(tls_io_instance->x509_private_key);
|
---|
| 893 | result = MU_FAILURE;
|
---|
| 894 | }
|
---|
| 895 | else
|
---|
| 896 | {
|
---|
| 897 | result = 0;
|
---|
| 898 | }
|
---|
| 899 | }
|
---|
| 900 | else if (strcmp(optionName, OPTION_UNDERLYING_IO_OPTIONS) == 0)
|
---|
| 901 | {
|
---|
| 902 | if (OptionHandler_FeedOptions((OPTIONHANDLER_HANDLE)value, (void*)tls_io_instance->socket_io) != OPTIONHANDLER_OK)
|
---|
| 903 | {
|
---|
| 904 | LogError("failed feeding options to underlying I/O instance");
|
---|
| 905 | result = MU_FAILURE;
|
---|
| 906 | }
|
---|
| 907 | else
|
---|
| 908 | {
|
---|
| 909 | result = 0;
|
---|
| 910 | }
|
---|
| 911 | }
|
---|
| 912 | else
|
---|
| 913 | {
|
---|
| 914 | // tls_io_instance->socket_io is never NULL
|
---|
| 915 | result = xio_setoption(tls_io_instance->socket_io, optionName, value);
|
---|
| 916 | }
|
---|
| 917 | }
|
---|
| 918 |
|
---|
| 919 | return result;
|
---|
| 920 | }
|
---|
| 921 |
|
---|
| 922 | OPTIONHANDLER_HANDLE tlsio_mbedtls_retrieveoptions(CONCRETE_IO_HANDLE handle)
|
---|
| 923 | {
|
---|
| 924 | OPTIONHANDLER_HANDLE result = NULL;
|
---|
| 925 | if (handle == NULL)
|
---|
| 926 | {
|
---|
| 927 | LogError("invalid parameter detected: CONCRETE_IO_HANDLE handle=%p", handle);
|
---|
| 928 | result = NULL;
|
---|
| 929 | }
|
---|
| 930 | else
|
---|
| 931 | {
|
---|
| 932 | result = OptionHandler_Create(tlsio_mbedtls_CloneOption, tlsio_mbedtls_DestroyOption, tlsio_mbedtls_setoption);
|
---|
| 933 | if (result == NULL)
|
---|
| 934 | {
|
---|
| 935 | LogError("unable to OptionHandler_Create");
|
---|
| 936 | /*return as is*/
|
---|
| 937 | }
|
---|
| 938 | else
|
---|
| 939 | {
|
---|
| 940 | /*this layer cares about the certificates*/
|
---|
| 941 | TLS_IO_INSTANCE *tls_io_instance = (TLS_IO_INSTANCE *)handle;
|
---|
| 942 | OPTIONHANDLER_HANDLE underlying_io_options;
|
---|
| 943 |
|
---|
| 944 | if ((underlying_io_options = xio_retrieveoptions(tls_io_instance->socket_io)) == NULL ||
|
---|
| 945 | OptionHandler_AddOption(result, OPTION_UNDERLYING_IO_OPTIONS, underlying_io_options) != OPTIONHANDLER_OK)
|
---|
| 946 | {
|
---|
| 947 | LogError("unable to save underlying_io options");
|
---|
| 948 | OptionHandler_Destroy(underlying_io_options);
|
---|
| 949 | OptionHandler_Destroy(result);
|
---|
| 950 | result = NULL;
|
---|
| 951 | }
|
---|
| 952 | else if (tls_io_instance->trusted_certificates != NULL &&
|
---|
| 953 | OptionHandler_AddOption(result, OPTION_TRUSTED_CERT, tls_io_instance->trusted_certificates) != OPTIONHANDLER_OK)
|
---|
| 954 | {
|
---|
| 955 | LogError("unable to save TrustedCerts option");
|
---|
| 956 | OptionHandler_Destroy(result);
|
---|
| 957 | result = NULL;
|
---|
| 958 | }
|
---|
| 959 | else if (&tls_io_instance->owncert != NULL && tls_io_instance->x509_certificate != NULL &&
|
---|
| 960 | OptionHandler_AddOption(result, SU_OPTION_X509_CERT, tls_io_instance->x509_certificate) != OPTIONHANDLER_OK)
|
---|
| 961 | {
|
---|
| 962 | LogError("unable to save x509certificate option");
|
---|
| 963 | OptionHandler_Destroy(result);
|
---|
| 964 | result = NULL;
|
---|
| 965 | }
|
---|
| 966 | else if (
|
---|
| 967 | (&tls_io_instance->pKey != NULL) && tls_io_instance->x509_private_key != NULL &&
|
---|
| 968 | (OptionHandler_AddOption(result, SU_OPTION_X509_PRIVATE_KEY, tls_io_instance->x509_private_key) != OPTIONHANDLER_OK)
|
---|
| 969 | )
|
---|
| 970 | {
|
---|
| 971 | LogError("unable to save x509privatekey option");
|
---|
| 972 | OptionHandler_Destroy(result);
|
---|
| 973 | result = NULL;
|
---|
| 974 | }
|
---|
| 975 | else
|
---|
| 976 | {
|
---|
| 977 | /*all is fine, all interesting options have been saved*/
|
---|
| 978 | /*return as is*/
|
---|
| 979 | }
|
---|
| 980 | }
|
---|
| 981 | }
|
---|
| 982 | return result;
|
---|
| 983 | }
|
---|
| 984 |
|
---|
| 985 | static const IO_INTERFACE_DESCRIPTION tlsio_mbedtls_interface_description =
|
---|
| 986 | {
|
---|
| 987 | tlsio_mbedtls_retrieveoptions,
|
---|
| 988 | tlsio_mbedtls_create,
|
---|
| 989 | tlsio_mbedtls_destroy,
|
---|
| 990 | tlsio_mbedtls_open,
|
---|
| 991 | tlsio_mbedtls_close,
|
---|
| 992 | tlsio_mbedtls_send,
|
---|
| 993 | tlsio_mbedtls_dowork,
|
---|
| 994 | tlsio_mbedtls_setoption};
|
---|
| 995 |
|
---|
| 996 | const IO_INTERFACE_DESCRIPTION *tlsio_mbedtls_get_interface_description(void)
|
---|
| 997 | {
|
---|
| 998 | return &tlsio_mbedtls_interface_description;
|
---|
| 999 | }
|
---|