1 | #include <machine/rtems-bsd-user-space.h> |
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2 | |
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3 | /* |
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4 | * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. |
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5 | * |
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6 | * Licensed under the OpenSSL license (the "License"). You may not use |
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7 | * this file except in compliance with the License. You can obtain a copy |
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8 | * in the file LICENSE in the source distribution or at |
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9 | * https://www.openssl.org/source/license.html |
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10 | */ |
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11 | |
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12 | #include <stdio.h> |
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13 | #include <string.h> |
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14 | #include <sys/types.h> |
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15 | #include "apps.h" |
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16 | #include "progs.h" |
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17 | #include <openssl/err.h> |
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18 | #include <openssl/evp.h> |
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19 | #include <openssl/x509.h> |
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20 | #include <openssl/pkcs7.h> |
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21 | #include <openssl/pem.h> |
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22 | #include <openssl/objects.h> |
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23 | |
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24 | static int add_certs_from_file(STACK_OF(X509) *stack, char *certfile); |
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25 | |
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26 | typedef enum OPTION_choice { |
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27 | OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, |
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28 | OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_NOCRL, OPT_CERTFILE |
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29 | } OPTION_CHOICE; |
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30 | |
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31 | const OPTIONS crl2pkcs7_options[] = { |
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32 | {"help", OPT_HELP, '-', "Display this summary"}, |
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33 | {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"}, |
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34 | {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"}, |
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35 | {"in", OPT_IN, '<', "Input file"}, |
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36 | {"out", OPT_OUT, '>', "Output file"}, |
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37 | {"nocrl", OPT_NOCRL, '-', "No crl to load, just certs from '-certfile'"}, |
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38 | {"certfile", OPT_CERTFILE, '<', |
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39 | "File of chain of certs to a trusted CA; can be repeated"}, |
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40 | {NULL} |
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41 | }; |
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42 | |
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43 | int crl2pkcs7_main(int argc, char **argv) |
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44 | { |
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45 | BIO *in = NULL, *out = NULL; |
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46 | PKCS7 *p7 = NULL; |
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47 | PKCS7_SIGNED *p7s = NULL; |
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48 | STACK_OF(OPENSSL_STRING) *certflst = NULL; |
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49 | STACK_OF(X509) *cert_stack = NULL; |
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50 | STACK_OF(X509_CRL) *crl_stack = NULL; |
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51 | X509_CRL *crl = NULL; |
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52 | char *infile = NULL, *outfile = NULL, *prog, *certfile; |
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53 | int i = 0, informat = FORMAT_PEM, outformat = FORMAT_PEM, ret = 1, nocrl = |
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54 | 0; |
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55 | OPTION_CHOICE o; |
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56 | |
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57 | prog = opt_init(argc, argv, crl2pkcs7_options); |
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58 | while ((o = opt_next()) != OPT_EOF) { |
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59 | switch (o) { |
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60 | case OPT_EOF: |
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61 | case OPT_ERR: |
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62 | opthelp: |
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63 | BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); |
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64 | goto end; |
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65 | case OPT_HELP: |
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66 | opt_help(crl2pkcs7_options); |
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67 | ret = 0; |
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68 | goto end; |
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69 | case OPT_INFORM: |
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70 | if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat)) |
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71 | goto opthelp; |
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72 | break; |
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73 | case OPT_OUTFORM: |
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74 | if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat)) |
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75 | goto opthelp; |
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76 | break; |
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77 | case OPT_IN: |
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78 | infile = opt_arg(); |
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79 | break; |
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80 | case OPT_OUT: |
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81 | outfile = opt_arg(); |
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82 | break; |
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83 | case OPT_NOCRL: |
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84 | nocrl = 1; |
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85 | break; |
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86 | case OPT_CERTFILE: |
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87 | if ((certflst == NULL) |
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88 | && (certflst = sk_OPENSSL_STRING_new_null()) == NULL) |
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89 | goto end; |
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90 | if (!sk_OPENSSL_STRING_push(certflst, opt_arg())) |
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91 | goto end; |
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92 | break; |
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93 | } |
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94 | } |
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95 | argc = opt_num_rest(); |
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96 | if (argc != 0) |
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97 | goto opthelp; |
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98 | |
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99 | if (!nocrl) { |
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100 | in = bio_open_default(infile, 'r', informat); |
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101 | if (in == NULL) |
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102 | goto end; |
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103 | |
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104 | if (informat == FORMAT_ASN1) |
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105 | crl = d2i_X509_CRL_bio(in, NULL); |
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106 | else if (informat == FORMAT_PEM) |
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107 | crl = PEM_read_bio_X509_CRL(in, NULL, NULL, NULL); |
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108 | if (crl == NULL) { |
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109 | BIO_printf(bio_err, "unable to load CRL\n"); |
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110 | ERR_print_errors(bio_err); |
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111 | goto end; |
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112 | } |
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113 | } |
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114 | |
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115 | if ((p7 = PKCS7_new()) == NULL) |
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116 | goto end; |
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117 | if ((p7s = PKCS7_SIGNED_new()) == NULL) |
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118 | goto end; |
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119 | p7->type = OBJ_nid2obj(NID_pkcs7_signed); |
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120 | p7->d.sign = p7s; |
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121 | p7s->contents->type = OBJ_nid2obj(NID_pkcs7_data); |
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122 | |
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123 | if (!ASN1_INTEGER_set(p7s->version, 1)) |
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124 | goto end; |
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125 | if ((crl_stack = sk_X509_CRL_new_null()) == NULL) |
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126 | goto end; |
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127 | p7s->crl = crl_stack; |
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128 | if (crl != NULL) { |
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129 | sk_X509_CRL_push(crl_stack, crl); |
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130 | crl = NULL; /* now part of p7 for OPENSSL_freeing */ |
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131 | } |
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132 | |
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133 | if ((cert_stack = sk_X509_new_null()) == NULL) |
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134 | goto end; |
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135 | p7s->cert = cert_stack; |
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136 | |
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137 | if (certflst != NULL) |
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138 | for (i = 0; i < sk_OPENSSL_STRING_num(certflst); i++) { |
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139 | certfile = sk_OPENSSL_STRING_value(certflst, i); |
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140 | if (add_certs_from_file(cert_stack, certfile) < 0) { |
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141 | BIO_printf(bio_err, "error loading certificates\n"); |
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142 | ERR_print_errors(bio_err); |
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143 | goto end; |
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144 | } |
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145 | } |
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146 | |
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147 | out = bio_open_default(outfile, 'w', outformat); |
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148 | if (out == NULL) |
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149 | goto end; |
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150 | |
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151 | if (outformat == FORMAT_ASN1) |
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152 | i = i2d_PKCS7_bio(out, p7); |
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153 | else if (outformat == FORMAT_PEM) |
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154 | i = PEM_write_bio_PKCS7(out, p7); |
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155 | if (!i) { |
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156 | BIO_printf(bio_err, "unable to write pkcs7 object\n"); |
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157 | ERR_print_errors(bio_err); |
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158 | goto end; |
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159 | } |
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160 | ret = 0; |
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161 | end: |
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162 | sk_OPENSSL_STRING_free(certflst); |
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163 | BIO_free(in); |
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164 | BIO_free_all(out); |
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165 | PKCS7_free(p7); |
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166 | X509_CRL_free(crl); |
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167 | |
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168 | return ret; |
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169 | } |
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170 | |
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171 | /*- |
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172 | *---------------------------------------------------------------------- |
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173 | * int add_certs_from_file |
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174 | * |
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175 | * Read a list of certificates to be checked from a file. |
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176 | * |
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177 | * Results: |
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178 | * number of certs added if successful, -1 if not. |
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179 | *---------------------------------------------------------------------- |
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180 | */ |
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181 | static int add_certs_from_file(STACK_OF(X509) *stack, char *certfile) |
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182 | { |
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183 | BIO *in = NULL; |
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184 | int count = 0; |
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185 | int ret = -1; |
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186 | STACK_OF(X509_INFO) *sk = NULL; |
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187 | X509_INFO *xi; |
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188 | |
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189 | in = BIO_new_file(certfile, "r"); |
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190 | if (in == NULL) { |
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191 | BIO_printf(bio_err, "error opening the file, %s\n", certfile); |
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192 | goto end; |
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193 | } |
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194 | |
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195 | /* This loads from a file, a stack of x509/crl/pkey sets */ |
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196 | sk = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL); |
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197 | if (sk == NULL) { |
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198 | BIO_printf(bio_err, "error reading the file, %s\n", certfile); |
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199 | goto end; |
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200 | } |
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201 | |
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202 | /* scan over it and pull out the CRL's */ |
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203 | while (sk_X509_INFO_num(sk)) { |
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204 | xi = sk_X509_INFO_shift(sk); |
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205 | if (xi->x509 != NULL) { |
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206 | sk_X509_push(stack, xi->x509); |
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207 | xi->x509 = NULL; |
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208 | count++; |
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209 | } |
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210 | X509_INFO_free(xi); |
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211 | } |
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212 | |
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213 | ret = count; |
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214 | end: |
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215 | /* never need to OPENSSL_free x */ |
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216 | BIO_free(in); |
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217 | sk_X509_INFO_free(sk); |
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218 | return ret; |
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219 | } |
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