1 | /*
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2 | * Copyright 2018-2021 The OpenSSL Project Authors. All Rights Reserved.
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3 | *
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4 | * Licensed under the Apache License 2.0 (the "License"). You may not use
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5 | * this file except in compliance with the License. You can obtain a copy
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6 | * in the file LICENSE in the source distribution or at
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7 | * https://www.openssl.org/source/license.html
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8 | */
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9 | #include <stdio.h>
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10 | #include <string.h>
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11 | #include <openssl/buffer.h>
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12 | #include <openssl/bio.h>
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13 |
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14 | #include "testutil.h"
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15 |
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16 | static int test_bio_memleak(void)
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17 | {
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18 | int ok = 0;
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19 | BIO *bio;
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20 | BUF_MEM bufmem;
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21 | static const char str[] = "BIO test\n";
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22 | char buf[100];
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23 |
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24 | bio = BIO_new(BIO_s_mem());
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25 | if (!TEST_ptr(bio))
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26 | goto finish;
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27 | bufmem.length = sizeof(str);
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28 | bufmem.data = (char *) str;
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29 | bufmem.max = bufmem.length;
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30 | BIO_set_mem_buf(bio, &bufmem, BIO_NOCLOSE);
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31 | BIO_set_flags(bio, BIO_FLAGS_MEM_RDONLY);
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32 | if (!TEST_int_eq(BIO_read(bio, buf, sizeof(buf)), sizeof(str)))
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33 | goto finish;
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34 | if (!TEST_mem_eq(buf, sizeof(str), str, sizeof(str)))
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35 | goto finish;
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36 | ok = 1;
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37 |
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38 | finish:
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39 | BIO_free(bio);
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40 | return ok;
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41 | }
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42 |
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43 | static int test_bio_get_mem(void)
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44 | {
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45 | int ok = 0;
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46 | BIO *bio = NULL;
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47 | BUF_MEM *bufmem = NULL;
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48 |
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49 | bio = BIO_new(BIO_s_mem());
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50 | if (!TEST_ptr(bio))
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51 | goto finish;
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52 | if (!TEST_int_eq(BIO_puts(bio, "Hello World\n"), 12))
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53 | goto finish;
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54 | BIO_get_mem_ptr(bio, &bufmem);
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55 | if (!TEST_ptr(bufmem))
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56 | goto finish;
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57 | if (!TEST_int_gt(BIO_set_close(bio, BIO_NOCLOSE), 0))
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58 | goto finish;
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59 | BIO_free(bio);
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60 | bio = NULL;
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61 | if (!TEST_mem_eq(bufmem->data, bufmem->length, "Hello World\n", 12))
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62 | goto finish;
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63 | ok = 1;
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64 |
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65 | finish:
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66 | BIO_free(bio);
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67 | BUF_MEM_free(bufmem);
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68 | return ok;
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69 | }
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70 |
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71 | static int test_bio_new_mem_buf(void)
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72 | {
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73 | int ok = 0;
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74 | BIO *bio;
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75 | BUF_MEM *bufmem;
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76 | char data[16];
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77 |
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78 | bio = BIO_new_mem_buf("Hello World\n", 12);
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79 | if (!TEST_ptr(bio))
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80 | goto finish;
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81 | if (!TEST_int_eq(BIO_read(bio, data, 5), 5))
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82 | goto finish;
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83 | if (!TEST_mem_eq(data, 5, "Hello", 5))
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84 | goto finish;
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85 | if (!TEST_int_gt(BIO_get_mem_ptr(bio, &bufmem), 0))
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86 | goto finish;
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87 | if (!TEST_int_lt(BIO_write(bio, "test", 4), 0))
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88 | goto finish;
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89 | if (!TEST_int_eq(BIO_read(bio, data, 16), 7))
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90 | goto finish;
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91 | if (!TEST_mem_eq(data, 7, " World\n", 7))
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92 | goto finish;
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93 | if (!TEST_int_gt(BIO_reset(bio), 0))
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94 | goto finish;
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95 | if (!TEST_int_eq(BIO_read(bio, data, 16), 12))
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96 | goto finish;
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97 | if (!TEST_mem_eq(data, 12, "Hello World\n", 12))
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98 | goto finish;
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99 | ok = 1;
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100 |
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101 | finish:
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102 | BIO_free(bio);
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103 | return ok;
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104 | }
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105 |
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106 | static int test_bio_rdonly_mem_buf(void)
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107 | {
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108 | int ok = 0;
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109 | BIO *bio, *bio2 = NULL;
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110 | BUF_MEM *bufmem;
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111 | char data[16];
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112 |
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113 | bio = BIO_new_mem_buf("Hello World\n", 12);
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114 | if (!TEST_ptr(bio))
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115 | goto finish;
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116 | if (!TEST_int_eq(BIO_read(bio, data, 5), 5))
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117 | goto finish;
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118 | if (!TEST_mem_eq(data, 5, "Hello", 5))
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119 | goto finish;
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120 | if (!TEST_int_gt(BIO_get_mem_ptr(bio, &bufmem), 0))
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121 | goto finish;
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122 | (void)BIO_set_close(bio, BIO_NOCLOSE);
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123 |
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124 | bio2 = BIO_new(BIO_s_mem());
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125 | if (!TEST_ptr(bio2))
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126 | goto finish;
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127 | BIO_set_mem_buf(bio2, bufmem, BIO_CLOSE);
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128 | BIO_set_flags(bio2, BIO_FLAGS_MEM_RDONLY);
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129 |
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130 | if (!TEST_int_eq(BIO_read(bio2, data, 16), 7))
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131 | goto finish;
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132 | if (!TEST_mem_eq(data, 7, " World\n", 7))
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133 | goto finish;
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134 | if (!TEST_int_gt(BIO_reset(bio2), 0))
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135 | goto finish;
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136 | if (!TEST_int_eq(BIO_read(bio2, data, 16), 7))
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137 | goto finish;
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138 | if (!TEST_mem_eq(data, 7, " World\n", 7))
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139 | goto finish;
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140 | ok = 1;
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141 |
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142 | finish:
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143 | BIO_free(bio);
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144 | BIO_free(bio2);
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145 | return ok;
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146 | }
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147 |
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148 | static int test_bio_rdwr_rdonly(void)
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149 | {
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150 | int ok = 0;
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151 | BIO *bio = NULL;
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152 | char data[16];
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153 |
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154 | bio = BIO_new(BIO_s_mem());
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155 | if (!TEST_ptr(bio))
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156 | goto finish;
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157 | if (!TEST_int_eq(BIO_puts(bio, "Hello World\n"), 12))
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158 | goto finish;
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159 |
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160 | BIO_set_flags(bio, BIO_FLAGS_MEM_RDONLY);
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161 | if (!TEST_int_eq(BIO_read(bio, data, 16), 12))
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162 | goto finish;
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163 | if (!TEST_mem_eq(data, 12, "Hello World\n", 12))
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164 | goto finish;
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165 | if (!TEST_int_gt(BIO_reset(bio), 0))
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166 | goto finish;
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167 |
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168 | BIO_clear_flags(bio, BIO_FLAGS_MEM_RDONLY);
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169 | if (!TEST_int_eq(BIO_puts(bio, "Hi!\n"), 4))
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170 | goto finish;
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171 | if (!TEST_int_eq(BIO_read(bio, data, 16), 16))
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172 | goto finish;
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173 |
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174 | if (!TEST_mem_eq(data, 16, "Hello World\nHi!\n", 16))
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175 | goto finish;
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176 |
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177 | ok = 1;
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178 |
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179 | finish:
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180 | BIO_free(bio);
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181 | return ok;
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182 | }
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183 |
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184 | static int test_bio_nonclear_rst(void)
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185 | {
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186 | int ok = 0;
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187 | BIO *bio = NULL;
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188 | char data[16];
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189 |
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190 | bio = BIO_new(BIO_s_mem());
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191 | if (!TEST_ptr(bio))
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192 | goto finish;
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193 | if (!TEST_int_eq(BIO_puts(bio, "Hello World\n"), 12))
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194 | goto finish;
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195 |
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196 | BIO_set_flags(bio, BIO_FLAGS_NONCLEAR_RST);
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197 |
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198 | if (!TEST_int_eq(BIO_read(bio, data, 16), 12))
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199 | goto finish;
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200 | if (!TEST_mem_eq(data, 12, "Hello World\n", 12))
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201 | goto finish;
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202 | if (!TEST_int_gt(BIO_reset(bio), 0))
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203 | goto finish;
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204 |
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205 | if (!TEST_int_eq(BIO_read(bio, data, 16), 12))
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206 | goto finish;
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207 | if (!TEST_mem_eq(data, 12, "Hello World\n", 12))
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208 | goto finish;
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209 |
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210 | BIO_clear_flags(bio, BIO_FLAGS_NONCLEAR_RST);
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211 | if (!TEST_int_gt(BIO_reset(bio), 0))
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212 | goto finish;
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213 |
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214 | if (!TEST_int_lt(BIO_read(bio, data, 16), 1))
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215 | goto finish;
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216 |
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217 | ok = 1;
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218 |
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219 | finish:
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220 | BIO_free(bio);
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221 | return ok;
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222 | }
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223 |
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224 | static int error_callback_fired;
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225 | static long BIO_error_callback(BIO *bio, int cmd, const char *argp,
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226 | size_t len, int argi,
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227 | long argl, int ret, size_t *processed)
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228 | {
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229 | if ((cmd & (BIO_CB_READ | BIO_CB_RETURN)) != 0) {
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230 | error_callback_fired = 1;
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231 | ret = 0; /* fail for read operations to simulate error in input BIO */
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232 | }
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233 | return ret;
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234 | }
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235 |
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236 | /* Checks i2d_ASN1_bio_stream() is freeing all memory when input BIO ends unexpectedly. */
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237 | static int test_bio_i2d_ASN1_mime(void)
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238 | {
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239 | int ok = 0;
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240 | BIO *bio = NULL, *out = NULL;
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241 | BUF_MEM bufmem;
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242 | static const char str[] = "BIO mime test\n";
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243 | PKCS7 *p7 = NULL;
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244 |
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245 | if (!TEST_ptr(bio = BIO_new(BIO_s_mem())))
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246 | goto finish;
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247 |
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248 | bufmem.length = sizeof(str);
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249 | bufmem.data = (char *) str;
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250 | bufmem.max = bufmem.length;
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251 | BIO_set_mem_buf(bio, &bufmem, BIO_NOCLOSE);
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252 | BIO_set_flags(bio, BIO_FLAGS_MEM_RDONLY);
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253 | BIO_set_callback_ex(bio, BIO_error_callback);
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254 |
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255 | if (!TEST_ptr(out = BIO_new(BIO_s_mem())))
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256 | goto finish;
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257 | if (!TEST_ptr(p7 = PKCS7_new()))
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258 | goto finish;
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259 | if (!TEST_true(PKCS7_set_type(p7, NID_pkcs7_data)))
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260 | goto finish;
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261 |
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262 | error_callback_fired = 0;
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263 |
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264 | if (!TEST_false(i2d_ASN1_bio_stream(out, (ASN1_VALUE*) p7, bio,
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265 | SMIME_STREAM | SMIME_BINARY,
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266 | ASN1_ITEM_rptr(PKCS7))))
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267 | goto finish;
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268 |
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269 | if (!TEST_int_eq(error_callback_fired, 1))
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270 | goto finish;
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271 |
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272 | ok = 1;
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273 |
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274 | finish:
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275 | BIO_free(bio);
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276 | BIO_free(out);
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277 | PKCS7_free(p7);
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278 | return ok;
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279 | }
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280 |
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281 | int setup_tests(void)
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282 | {
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283 | ADD_TEST(test_bio_memleak);
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284 | ADD_TEST(test_bio_get_mem);
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285 | ADD_TEST(test_bio_new_mem_buf);
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286 | ADD_TEST(test_bio_rdonly_mem_buf);
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287 | ADD_TEST(test_bio_rdwr_rdonly);
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288 | ADD_TEST(test_bio_nonclear_rst);
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289 | ADD_TEST(test_bio_i2d_ASN1_mime);
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290 | return 1;
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291 | }
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