1 | /* apps/crl.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 | #include <stdio.h> |
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60 | #include <stdlib.h> |
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61 | #include <string.h> |
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62 | #include "apps.h" |
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63 | #include <openssl/bio.h> |
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64 | #include <openssl/err.h> |
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65 | #include <openssl/x509.h> |
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66 | #include <openssl/x509v3.h> |
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67 | #include <openssl/pem.h> |
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68 | |
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69 | #undef PROG |
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70 | #define PROG crl_main |
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71 | |
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72 | #undef POSTFIX |
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73 | #define POSTFIX ".rvk" |
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74 | |
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75 | static char *crl_usage[]={ |
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76 | "usage: crl args\n", |
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77 | "\n", |
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78 | " -inform arg - input format - default PEM (DER or PEM)\n", |
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79 | " -outform arg - output format - default PEM\n", |
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80 | " -text - print out a text format version\n", |
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81 | " -in arg - input file - default stdin\n", |
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82 | " -out arg - output file - default stdout\n", |
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83 | " -hash - print hash value\n", |
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84 | " -issuer - print issuer DN\n", |
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85 | " -lastupdate - lastUpdate field\n", |
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86 | " -nextupdate - nextUpdate field\n", |
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87 | " -noout - no CRL output\n", |
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88 | " -CAfile name - verify CRL using certificates in file \"name\"\n", |
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89 | " -CApath dir - verify CRL using certificates in \"dir\"\n", |
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90 | " -nameopt arg - various certificate name options\n", |
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91 | NULL |
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92 | }; |
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93 | |
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94 | static X509_CRL *load_crl(char *file, int format); |
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95 | static BIO *bio_out=NULL; |
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96 | |
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97 | int MAIN(int, char **); |
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98 | |
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99 | int MAIN(int argc, char **argv) |
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100 | { |
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101 | unsigned long nmflag = 0; |
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102 | X509_CRL *x=NULL; |
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103 | char *CAfile = NULL, *CApath = NULL; |
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104 | int ret=1,i,num,badops=0; |
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105 | BIO *out=NULL; |
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106 | int informat,outformat; |
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107 | char *infile=NULL,*outfile=NULL; |
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108 | int hash=0,issuer=0,lastupdate=0,nextupdate=0,noout=0,text=0; |
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109 | int fingerprint = 0; |
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110 | char **pp; |
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111 | X509_STORE *store = NULL; |
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112 | X509_STORE_CTX ctx; |
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113 | X509_LOOKUP *lookup = NULL; |
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114 | X509_OBJECT xobj; |
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115 | EVP_PKEY *pkey; |
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116 | int do_ver = 0; |
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117 | const EVP_MD *md_alg,*digest=EVP_md5(); |
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118 | |
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119 | apps_startup(); |
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120 | |
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121 | if (bio_err == NULL) |
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122 | if ((bio_err=BIO_new(BIO_s_file())) != NULL) |
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123 | BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); |
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124 | |
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125 | if (!load_config(bio_err, NULL)) |
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126 | goto end; |
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127 | |
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128 | if (bio_out == NULL) |
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129 | if ((bio_out=BIO_new(BIO_s_file())) != NULL) |
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130 | { |
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131 | BIO_set_fp(bio_out,stdout,BIO_NOCLOSE); |
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132 | #ifdef OPENSSL_SYS_VMS |
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133 | { |
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134 | BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
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135 | bio_out = BIO_push(tmpbio, bio_out); |
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136 | } |
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137 | #endif |
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138 | } |
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139 | |
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140 | informat=FORMAT_PEM; |
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141 | outformat=FORMAT_PEM; |
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142 | |
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143 | argc--; |
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144 | argv++; |
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145 | num=0; |
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146 | while (argc >= 1) |
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147 | { |
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148 | #ifdef undef |
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149 | if (strcmp(*argv,"-p") == 0) |
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150 | { |
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151 | if (--argc < 1) goto bad; |
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152 | if (!args_from_file(++argv,Nargc,Nargv)) { goto end; }*/ |
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153 | } |
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154 | #endif |
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155 | if (strcmp(*argv,"-inform") == 0) |
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156 | { |
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157 | if (--argc < 1) goto bad; |
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158 | informat=str2fmt(*(++argv)); |
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159 | } |
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160 | else if (strcmp(*argv,"-outform") == 0) |
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161 | { |
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162 | if (--argc < 1) goto bad; |
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163 | outformat=str2fmt(*(++argv)); |
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164 | } |
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165 | else if (strcmp(*argv,"-in") == 0) |
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166 | { |
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167 | if (--argc < 1) goto bad; |
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168 | infile= *(++argv); |
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169 | } |
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170 | else if (strcmp(*argv,"-out") == 0) |
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171 | { |
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172 | if (--argc < 1) goto bad; |
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173 | outfile= *(++argv); |
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174 | } |
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175 | else if (strcmp(*argv,"-CApath") == 0) |
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176 | { |
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177 | if (--argc < 1) goto bad; |
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178 | CApath = *(++argv); |
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179 | do_ver = 1; |
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180 | } |
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181 | else if (strcmp(*argv,"-CAfile") == 0) |
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182 | { |
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183 | if (--argc < 1) goto bad; |
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184 | CAfile = *(++argv); |
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185 | do_ver = 1; |
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186 | } |
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187 | else if (strcmp(*argv,"-verify") == 0) |
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188 | do_ver = 1; |
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189 | else if (strcmp(*argv,"-text") == 0) |
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190 | text = 1; |
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191 | else if (strcmp(*argv,"-hash") == 0) |
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192 | hash= ++num; |
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193 | else if (strcmp(*argv,"-nameopt") == 0) |
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194 | { |
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195 | if (--argc < 1) goto bad; |
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196 | if (!set_name_ex(&nmflag, *(++argv))) goto bad; |
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197 | } |
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198 | else if (strcmp(*argv,"-issuer") == 0) |
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199 | issuer= ++num; |
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200 | else if (strcmp(*argv,"-lastupdate") == 0) |
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201 | lastupdate= ++num; |
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202 | else if (strcmp(*argv,"-nextupdate") == 0) |
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203 | nextupdate= ++num; |
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204 | else if (strcmp(*argv,"-noout") == 0) |
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205 | noout= ++num; |
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206 | else if (strcmp(*argv,"-fingerprint") == 0) |
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207 | fingerprint= ++num; |
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208 | else if ((md_alg=EVP_get_digestbyname(*argv + 1))) |
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209 | { |
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210 | /* ok */ |
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211 | digest=md_alg; |
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212 | } |
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213 | else |
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214 | { |
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215 | BIO_printf(bio_err,"unknown option %s\n",*argv); |
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216 | badops=1; |
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217 | break; |
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218 | } |
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219 | argc--; |
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220 | argv++; |
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221 | } |
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222 | |
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223 | if (badops) |
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224 | { |
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225 | bad: |
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226 | for (pp=crl_usage; (*pp != NULL); pp++) |
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227 | BIO_printf(bio_err,"%s",*pp); |
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228 | goto end; |
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229 | } |
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230 | |
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231 | ERR_load_crypto_strings(); |
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232 | x=load_crl(infile,informat); |
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233 | if (x == NULL) { goto end; } |
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234 | |
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235 | if(do_ver) { |
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236 | store = X509_STORE_new(); |
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237 | lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file()); |
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238 | if (lookup == NULL) goto end; |
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239 | if (!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) |
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240 | X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT); |
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241 | |
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242 | lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir()); |
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243 | if (lookup == NULL) goto end; |
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244 | if (!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) |
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245 | X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT); |
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246 | ERR_clear_error(); |
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247 | |
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248 | if(!X509_STORE_CTX_init(&ctx, store, NULL, NULL)) { |
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249 | BIO_printf(bio_err, |
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250 | "Error initialising X509 store\n"); |
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251 | goto end; |
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252 | } |
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253 | |
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254 | i = X509_STORE_get_by_subject(&ctx, X509_LU_X509, |
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255 | X509_CRL_get_issuer(x), &xobj); |
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256 | if(i <= 0) { |
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257 | BIO_printf(bio_err, |
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258 | "Error getting CRL issuer certificate\n"); |
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259 | goto end; |
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260 | } |
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261 | pkey = X509_get_pubkey(xobj.data.x509); |
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262 | X509_OBJECT_free_contents(&xobj); |
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263 | if(!pkey) { |
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264 | BIO_printf(bio_err, |
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265 | "Error getting CRL issuer public key\n"); |
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266 | goto end; |
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267 | } |
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268 | i = X509_CRL_verify(x, pkey); |
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269 | EVP_PKEY_free(pkey); |
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270 | if(i < 0) goto end; |
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271 | if(i == 0) BIO_printf(bio_err, "verify failure\n"); |
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272 | else BIO_printf(bio_err, "verify OK\n"); |
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273 | } |
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274 | |
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275 | if (num) |
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276 | { |
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277 | for (i=1; i<=num; i++) |
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278 | { |
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279 | if (issuer == i) |
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280 | { |
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281 | print_name(bio_out, "issuer=", X509_CRL_get_issuer(x), nmflag); |
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282 | } |
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283 | |
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284 | if (hash == i) |
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285 | { |
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286 | BIO_printf(bio_out,"%08lx\n", |
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287 | X509_NAME_hash(X509_CRL_get_issuer(x))); |
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288 | } |
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289 | if (lastupdate == i) |
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290 | { |
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291 | BIO_printf(bio_out,"lastUpdate="); |
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292 | ASN1_TIME_print(bio_out, |
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293 | X509_CRL_get_lastUpdate(x)); |
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294 | BIO_printf(bio_out,"\n"); |
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295 | } |
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296 | if (nextupdate == i) |
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297 | { |
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298 | BIO_printf(bio_out,"nextUpdate="); |
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299 | if (X509_CRL_get_nextUpdate(x)) |
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300 | ASN1_TIME_print(bio_out, |
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301 | X509_CRL_get_nextUpdate(x)); |
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302 | else |
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303 | BIO_printf(bio_out,"NONE"); |
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304 | BIO_printf(bio_out,"\n"); |
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305 | } |
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306 | if (fingerprint == i) |
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307 | { |
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308 | int j; |
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309 | unsigned int n; |
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310 | unsigned char md[EVP_MAX_MD_SIZE]; |
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311 | |
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312 | if (!X509_CRL_digest(x,digest,md,&n)) |
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313 | { |
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314 | BIO_printf(bio_err,"out of memory\n"); |
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315 | goto end; |
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316 | } |
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317 | BIO_printf(bio_out,"%s Fingerprint=", |
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318 | OBJ_nid2sn(EVP_MD_type(digest))); |
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319 | for (j=0; j<(int)n; j++) |
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320 | { |
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321 | BIO_printf(bio_out,"%02X%c",md[j], |
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322 | (j+1 == (int)n) |
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323 | ?'\n':':'); |
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324 | } |
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325 | } |
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326 | } |
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327 | } |
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328 | |
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329 | out=BIO_new(BIO_s_file()); |
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330 | if (out == NULL) |
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331 | { |
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332 | ERR_print_errors(bio_err); |
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333 | goto end; |
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334 | } |
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335 | |
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336 | if (outfile == NULL) |
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337 | { |
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338 | BIO_set_fp(out,stdout,BIO_NOCLOSE); |
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339 | #ifdef OPENSSL_SYS_VMS |
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340 | { |
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341 | BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
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342 | out = BIO_push(tmpbio, out); |
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343 | } |
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344 | #endif |
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345 | } |
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346 | else |
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347 | { |
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348 | if (BIO_write_filename(out,outfile) <= 0) |
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349 | { |
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350 | perror(outfile); |
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351 | goto end; |
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352 | } |
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353 | } |
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354 | |
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355 | if (text) X509_CRL_print(out, x); |
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356 | |
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357 | if (noout) goto end; |
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358 | |
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359 | if (outformat == FORMAT_ASN1) |
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360 | i=(int)i2d_X509_CRL_bio(out,x); |
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361 | else if (outformat == FORMAT_PEM) |
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362 | i=PEM_write_bio_X509_CRL(out,x); |
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363 | else |
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364 | { |
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365 | BIO_printf(bio_err,"bad output format specified for outfile\n"); |
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366 | goto end; |
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367 | } |
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368 | if (!i) { BIO_printf(bio_err,"unable to write CRL\n"); goto end; } |
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369 | ret=0; |
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370 | end: |
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371 | BIO_free_all(out); |
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372 | BIO_free_all(bio_out); |
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373 | bio_out=NULL; |
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374 | X509_CRL_free(x); |
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375 | if(store) { |
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376 | X509_STORE_CTX_cleanup(&ctx); |
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377 | X509_STORE_free(store); |
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378 | } |
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379 | apps_shutdown(); |
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380 | OPENSSL_EXIT(ret); |
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381 | } |
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382 | |
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383 | static X509_CRL *load_crl(char *infile, int format) |
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384 | { |
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385 | X509_CRL *x=NULL; |
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386 | BIO *in=NULL; |
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387 | |
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388 | in=BIO_new(BIO_s_file()); |
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389 | if (in == NULL) |
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390 | { |
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391 | ERR_print_errors(bio_err); |
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392 | goto end; |
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393 | } |
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394 | |
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395 | if (infile == NULL) |
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396 | BIO_set_fp(in,stdin,BIO_NOCLOSE); |
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397 | else |
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398 | { |
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399 | if (BIO_read_filename(in,infile) <= 0) |
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400 | { |
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401 | perror(infile); |
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402 | goto end; |
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403 | } |
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404 | } |
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405 | if (format == FORMAT_ASN1) |
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406 | x=d2i_X509_CRL_bio(in,NULL); |
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407 | else if (format == FORMAT_PEM) |
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408 | x=PEM_read_bio_X509_CRL(in,NULL,NULL,NULL); |
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409 | else { |
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410 | BIO_printf(bio_err,"bad input format specified for input crl\n"); |
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411 | goto end; |
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412 | } |
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413 | if (x == NULL) |
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414 | { |
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415 | BIO_printf(bio_err,"unable to load CRL\n"); |
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416 | ERR_print_errors(bio_err); |
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417 | goto end; |
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418 | } |
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419 | |
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420 | end: |
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421 | BIO_free(in); |
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422 | return(x); |
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423 | } |
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424 | |
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