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1 /* apps/crl2p7.c */ |
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2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
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3 * All rights reserved. |
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4 * |
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5 * This package is an SSL implementation written |
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6 * by Eric Young (eay@cryptsoft.com). |
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7 * The implementation was written so as to conform with Netscapes SSL. |
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8 * |
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9 * This library is free for commercial and non-commercial use as long as |
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10 * the following conditions are aheared to. The following conditions |
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11 * apply to all code found in this distribution, be it the RC4, RSA, |
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12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation |
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13 * included with this distribution is covered by the same copyright terms |
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14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
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15 * |
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16 * Copyright remains Eric Young's, and as such any Copyright notices in |
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17 * the code are not to be removed. |
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18 * If this package is used in a product, Eric Young should be given attribution |
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19 * as the author of the parts of the library used. |
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20 * This can be in the form of a textual message at program startup or |
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21 * in documentation (online or textual) provided with the package. |
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22 * |
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23 * Redistribution and use in source and binary forms, with or without |
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24 * modification, are permitted provided that the following conditions |
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25 * are met: |
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26 * 1. Redistributions of source code must retain the copyright |
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27 * notice, this list of conditions and the following disclaimer. |
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28 * 2. Redistributions in binary form must reproduce the above copyright |
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29 * notice, this list of conditions and the following disclaimer in the |
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30 * documentation and/or other materials provided with the distribution. |
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31 * 3. All advertising materials mentioning features or use of this software |
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32 * must display the following acknowledgement: |
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33 * "This product includes cryptographic software written by |
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34 * Eric Young (eay@cryptsoft.com)" |
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35 * The word 'cryptographic' can be left out if the rouines from the library |
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36 * being used are not cryptographic related :-). |
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37 * 4. If you include any Windows specific code (or a derivative thereof) from |
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38 * the apps directory (application code) you must include an acknowledgement: |
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39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
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40 * |
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41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
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42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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51 * SUCH DAMAGE. |
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52 * |
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53 * The licence and distribution terms for any publically available version or |
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54 * derivative of this code cannot be changed. i.e. this code cannot simply be |
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55 * copied and put under another distribution licence |
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56 * [including the GNU Public Licence.] |
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57 */ |
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58 |
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59 /* This was written by Gordon Chaffee <chaffee@plateau.cs.berkeley.edu> |
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60 * and donated 'to the cause' along with lots and lots of other fixes to |
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61 * the library. */ |
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62 |
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63 #include <stdio.h> |
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64 #include <string.h> |
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65 #include <sys/types.h> |
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66 #include <sys/stat.h> |
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67 #include "apps.h" |
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68 #include <openssl/err.h> |
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69 #include <openssl/evp.h> |
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70 #include <openssl/x509.h> |
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71 #include <openssl/pkcs7.h> |
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72 #include <openssl/pem.h> |
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73 #include <openssl/objects.h> |
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74 |
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75 static int add_certs_from_file(STACK_OF(X509) *stack, char *certfile); |
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76 #undef PROG |
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77 #define PROG crl2pkcs7_main |
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78 |
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79 /* -inform arg - input format - default PEM (DER or PEM) |
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80 * -outform arg - output format - default PEM |
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81 * -in arg - input file - default stdin |
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82 * -out arg - output file - default stdout |
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83 */ |
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84 |
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85 |
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86 int MAIN(int, char **); |
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87 |
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88 int MAIN(int argc, char **argv) |
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89 { |
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90 int i,badops=0; |
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91 BIO *in=NULL,*out=NULL; |
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92 int informat,outformat; |
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93 char *infile,*outfile,*prog,*certfile; |
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94 PKCS7 *p7 = NULL; |
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95 PKCS7_SIGNED *p7s = NULL; |
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96 X509_CRL *crl=NULL; |
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97 STACK *certflst=NULL; |
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98 STACK_OF(X509_CRL) *crl_stack=NULL; |
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99 STACK_OF(X509) *cert_stack=NULL; |
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100 int ret=1,nocrl=0; |
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101 |
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102 apps_startup(); |
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103 |
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104 if (bio_err == NULL) |
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105 if ((bio_err=BIO_new(BIO_s_file())) != NULL) |
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106 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); |
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107 |
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108 infile=NULL; |
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109 outfile=NULL; |
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110 informat=FORMAT_PEM; |
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111 outformat=FORMAT_PEM; |
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112 |
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113 prog=argv[0]; |
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114 argc--; |
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115 argv++; |
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116 while (argc >= 1) |
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117 { |
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118 if (strcmp(*argv,"-inform") == 0) |
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119 { |
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120 if (--argc < 1) goto bad; |
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121 informat=str2fmt(*(++argv)); |
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122 } |
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123 else if (strcmp(*argv,"-outform") == 0) |
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124 { |
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125 if (--argc < 1) goto bad; |
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126 outformat=str2fmt(*(++argv)); |
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127 } |
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128 else if (strcmp(*argv,"-in") == 0) |
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129 { |
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130 if (--argc < 1) goto bad; |
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131 infile= *(++argv); |
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132 } |
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133 else if (strcmp(*argv,"-nocrl") == 0) |
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134 { |
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135 nocrl=1; |
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136 } |
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137 else if (strcmp(*argv,"-out") == 0) |
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138 { |
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139 if (--argc < 1) goto bad; |
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140 outfile= *(++argv); |
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141 } |
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142 else if (strcmp(*argv,"-certfile") == 0) |
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143 { |
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144 if (--argc < 1) goto bad; |
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145 if(!certflst) certflst = sk_new_null(); |
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146 sk_push(certflst,*(++argv)); |
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147 } |
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148 else |
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149 { |
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150 BIO_printf(bio_err,"unknown option %s\n",*argv); |
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151 badops=1; |
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152 break; |
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153 } |
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154 argc--; |
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155 argv++; |
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156 } |
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157 |
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158 if (badops) |
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159 { |
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160 bad: |
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161 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog); |
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162 BIO_printf(bio_err,"where options are\n"); |
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163 BIO_printf(bio_err," -inform arg input format - DER or PEM\n"); |
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164 BIO_printf(bio_err," -outform arg output format - DER or PEM\n"); |
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165 BIO_printf(bio_err," -in arg input file\n"); |
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166 BIO_printf(bio_err," -out arg output file\n"); |
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167 BIO_printf(bio_err," -certfile arg certificates file of chain to a trusted CA\n"); |
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168 BIO_printf(bio_err," (can be used more than once)\n"); |
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169 BIO_printf(bio_err," -nocrl no crl to load, just certs from '-certfile'\n"); |
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170 ret = 1; |
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171 goto end; |
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172 } |
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173 |
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174 ERR_load_crypto_strings(); |
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175 |
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176 in=BIO_new(BIO_s_file()); |
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177 out=BIO_new(BIO_s_file()); |
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178 if ((in == NULL) || (out == NULL)) |
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179 { |
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180 ERR_print_errors(bio_err); |
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181 goto end; |
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182 } |
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183 |
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184 if (!nocrl) |
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185 { |
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186 if (infile == NULL) |
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187 BIO_set_fp(in,stdin,BIO_NOCLOSE); |
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188 |
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189 else |
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190 { |
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191 if (BIO_read_filename(in,infile) <= 0) |
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192 { |
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193 perror(infile); |
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194 goto end; |
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195 } |
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196 } |
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197 |
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198 if (informat == FORMAT_ASN1) |
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199 crl=d2i_X509_CRL_bio(in,NULL); |
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200 else if (informat == FORMAT_PEM) |
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201 crl=PEM_read_bio_X509_CRL(in,NULL,NULL,NULL); |
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202 else { |
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203 BIO_printf(bio_err,"bad input format specified for input crl\n"); |
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204 goto end; |
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205 } |
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206 if (crl == NULL) |
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207 { |
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208 BIO_printf(bio_err,"unable to load CRL\n"); |
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209 ERR_print_errors(bio_err); |
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210 goto end; |
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211 } |
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212 } |
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213 |
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214 if ((p7=PKCS7_new()) == NULL) goto end; |
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215 if ((p7s=PKCS7_SIGNED_new()) == NULL) goto end; |
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216 p7->type=OBJ_nid2obj(NID_pkcs7_signed); |
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217 p7->d.sign=p7s; |
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218 p7s->contents->type=OBJ_nid2obj(NID_pkcs7_data); |
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219 |
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220 if (!ASN1_INTEGER_set(p7s->version,1)) goto end; |
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221 if ((crl_stack=sk_X509_CRL_new_null()) == NULL) goto end; |
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222 p7s->crl=crl_stack; |
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223 if (crl != NULL) |
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224 { |
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225 sk_X509_CRL_push(crl_stack,crl); |
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226 crl=NULL; /* now part of p7 for OPENSSL_freeing */ |
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227 } |
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228 |
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229 if ((cert_stack=sk_X509_new_null()) == NULL) goto end; |
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230 p7s->cert=cert_stack; |
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231 |
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232 if(certflst) for(i = 0; i < sk_num(certflst); i++) { |
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233 certfile = sk_value(certflst, i); |
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234 if (add_certs_from_file(cert_stack,certfile) < 0) |
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235 { |
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236 BIO_printf(bio_err, "error loading certificates\n"); |
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237 ERR_print_errors(bio_err); |
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238 goto end; |
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239 } |
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240 } |
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241 |
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242 sk_free(certflst); |
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243 |
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244 if (outfile == NULL) |
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245 { |
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246 BIO_set_fp(out,stdout,BIO_NOCLOSE); |
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247 #ifdef OPENSSL_SYS_VMS |
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248 { |
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249 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
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250 out = BIO_push(tmpbio, out); |
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251 } |
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252 #endif |
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253 } |
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254 else |
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255 { |
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256 if (BIO_write_filename(out,outfile) <= 0) |
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257 { |
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258 perror(outfile); |
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259 goto end; |
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260 } |
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261 } |
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262 |
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263 if (outformat == FORMAT_ASN1) |
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264 i=i2d_PKCS7_bio(out,p7); |
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265 else if (outformat == FORMAT_PEM) |
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266 i=PEM_write_bio_PKCS7(out,p7); |
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267 else { |
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268 BIO_printf(bio_err,"bad output format specified for outfile\n"); |
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269 goto end; |
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270 } |
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271 if (!i) |
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272 { |
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273 BIO_printf(bio_err,"unable to write pkcs7 object\n"); |
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274 ERR_print_errors(bio_err); |
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275 goto end; |
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276 } |
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277 ret=0; |
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278 end: |
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279 if (in != NULL) BIO_free(in); |
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280 if (out != NULL) BIO_free_all(out); |
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281 if (p7 != NULL) PKCS7_free(p7); |
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282 if (crl != NULL) X509_CRL_free(crl); |
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283 |
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284 apps_shutdown(); |
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285 OPENSSL_EXIT(ret); |
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286 } |
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287 |
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288 /* |
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289 *---------------------------------------------------------------------- |
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290 * int add_certs_from_file |
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291 * |
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292 * Read a list of certificates to be checked from a file. |
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293 * |
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294 * Results: |
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295 * number of certs added if successful, -1 if not. |
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296 *---------------------------------------------------------------------- |
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297 */ |
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298 static int add_certs_from_file(STACK_OF(X509) *stack, char *certfile) |
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299 { |
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300 struct stat st; |
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301 BIO *in=NULL; |
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302 int count=0; |
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303 int ret= -1; |
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304 STACK_OF(X509_INFO) *sk=NULL; |
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305 X509_INFO *xi; |
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306 |
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307 if ((stat(certfile,&st) != 0)) |
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308 { |
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309 BIO_printf(bio_err,"unable to load the file, %s\n",certfile); |
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310 goto end; |
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311 } |
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312 |
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313 in=BIO_new(BIO_s_file()); |
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314 if ((in == NULL) || (BIO_read_filename(in,certfile) <= 0)) |
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315 { |
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316 BIO_printf(bio_err,"error opening the file, %s\n",certfile); |
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317 goto end; |
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318 } |
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319 |
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320 /* This loads from a file, a stack of x509/crl/pkey sets */ |
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321 sk=PEM_X509_INFO_read_bio(in,NULL,NULL,NULL); |
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322 if (sk == NULL) { |
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323 BIO_printf(bio_err,"error reading the file, %s\n",certfile); |
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324 goto end; |
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325 } |
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326 |
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327 /* scan over it and pull out the CRL's */ |
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328 while (sk_X509_INFO_num(sk)) |
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329 { |
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330 xi=sk_X509_INFO_shift(sk); |
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331 if (xi->x509 != NULL) |
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332 { |
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333 sk_X509_push(stack,xi->x509); |
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334 xi->x509=NULL; |
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335 count++; |
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336 } |
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337 X509_INFO_free(xi); |
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338 } |
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339 |
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340 ret=count; |
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341 end: |
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342 /* never need to OPENSSL_free x */ |
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343 if (in != NULL) BIO_free(in); |
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344 if (sk != NULL) sk_X509_INFO_free(sk); |
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345 return(ret); |
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346 } |
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347 |