1 | /*
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2 | * Copyright 2001-2016 The OpenSSL Project Authors. All Rights Reserved.
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3 | *
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4 | * Licensed under the OpenSSL license (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 |
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10 | #include <openssl/opensslconf.h>
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11 |
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12 | #ifdef OPENSSL_NO_OCSP
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13 | NON_EMPTY_TRANSLATION_UNIT
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14 | #else
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15 | # ifdef OPENSSL_SYS_VMS
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16 | # define _XOPEN_SOURCE_EXTENDED/* So fd_set and friends get properly defined
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17 | * on OpenVMS */
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18 | # endif
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19 |
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20 | # define USE_SOCKETS
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21 |
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22 | # include <stdio.h>
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23 | # include <stdlib.h>
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24 | # include <string.h>
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25 | # include <time.h>
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26 | # include <ctype.h>
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27 |
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28 | /* Needs to be included before the openssl headers */
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29 | # include "apps.h"
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30 | # include <openssl/e_os2.h>
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31 | # include <openssl/crypto.h>
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32 | # include <openssl/err.h>
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33 | # include <openssl/ssl.h>
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34 | # include <openssl/evp.h>
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35 | # include <openssl/bn.h>
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36 | # include <openssl/x509v3.h>
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37 |
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38 | # if defined(NETWARE_CLIB)
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39 | # ifdef NETWARE_BSDSOCK
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40 | # include <sys/socket.h>
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41 | # include <sys/bsdskt.h>
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42 | # else
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43 | # include <novsock2.h>
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44 | # endif
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45 | # elif defined(NETWARE_LIBC)
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46 | # ifdef NETWARE_BSDSOCK
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47 | # include <sys/select.h>
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48 | # else
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49 | # include <novsock2.h>
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50 | # endif
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51 | # endif
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52 |
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53 | /* Maximum leeway in validity period: default 5 minutes */
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54 | # define MAX_VALIDITY_PERIOD (5 * 60)
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55 |
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56 | static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert,
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57 | const EVP_MD *cert_id_md, X509 *issuer,
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58 | STACK_OF(OCSP_CERTID) *ids);
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59 | static int add_ocsp_serial(OCSP_REQUEST **req, char *serial,
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60 | const EVP_MD *cert_id_md, X509 *issuer,
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61 | STACK_OF(OCSP_CERTID) *ids);
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62 | static void print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
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63 | STACK_OF(OPENSSL_STRING) *names,
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64 | STACK_OF(OCSP_CERTID) *ids, long nsec,
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65 | long maxage);
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66 | static void make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req,
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67 | CA_DB *db, X509 *ca, X509 *rcert,
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68 | EVP_PKEY *rkey, const EVP_MD *md,
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69 | STACK_OF(X509) *rother, unsigned long flags,
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70 | int nmin, int ndays, int badsig);
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71 |
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72 | static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser);
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73 | static BIO *init_responder(const char *port);
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74 | static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio);
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75 | static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp);
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76 |
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77 | # ifndef OPENSSL_NO_SOCK
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78 | static OCSP_RESPONSE *query_responder(BIO *cbio, const char *host,
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79 | const char *path,
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80 | const STACK_OF(CONF_VALUE) *headers,
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81 | OCSP_REQUEST *req, int req_timeout);
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82 | # endif
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83 |
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84 | typedef enum OPTION_choice {
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85 | OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
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86 | OPT_OUTFILE, OPT_TIMEOUT, OPT_URL, OPT_HOST, OPT_PORT,
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87 | OPT_IGNORE_ERR, OPT_NOVERIFY, OPT_NONCE, OPT_NO_NONCE,
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88 | OPT_RESP_NO_CERTS, OPT_RESP_KEY_ID, OPT_NO_CERTS,
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89 | OPT_NO_SIGNATURE_VERIFY, OPT_NO_CERT_VERIFY, OPT_NO_CHAIN,
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90 | OPT_NO_CERT_CHECKS, OPT_NO_EXPLICIT, OPT_TRUST_OTHER,
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91 | OPT_NO_INTERN, OPT_BADSIG, OPT_TEXT, OPT_REQ_TEXT, OPT_RESP_TEXT,
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92 | OPT_REQIN, OPT_RESPIN, OPT_SIGNER, OPT_VAFILE, OPT_SIGN_OTHER,
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93 | OPT_VERIFY_OTHER, OPT_CAFILE, OPT_CAPATH, OPT_NOCAFILE, OPT_NOCAPATH,
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94 | OPT_VALIDITY_PERIOD, OPT_STATUS_AGE, OPT_SIGNKEY, OPT_REQOUT,
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95 | OPT_RESPOUT, OPT_PATH, OPT_ISSUER, OPT_CERT, OPT_SERIAL,
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96 | OPT_INDEX, OPT_CA, OPT_NMIN, OPT_REQUEST, OPT_NDAYS, OPT_RSIGNER,
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97 | OPT_RKEY, OPT_ROTHER, OPT_RMD, OPT_HEADER,
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98 | OPT_V_ENUM,
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99 | OPT_MD
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100 | } OPTION_CHOICE;
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101 |
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102 | OPTIONS ocsp_options[] = {
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103 | {"help", OPT_HELP, '-', "Display this summary"},
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104 | {"out", OPT_OUTFILE, '>', "Output filename"},
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105 | {"timeout", OPT_TIMEOUT, 'p',
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106 | "Connection timeout (in seconds) to the OCSP responder"},
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107 | {"url", OPT_URL, 's', "Responder URL"},
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108 | {"host", OPT_HOST, 's', "TCP/IP hostname:port to connect to"},
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109 | {"port", OPT_PORT, 'p', "Port to run responder on"},
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110 | {"ignore_err", OPT_IGNORE_ERR, '-',
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111 | "Ignore Error response from OCSP responder, and retry "},
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112 | {"noverify", OPT_NOVERIFY, '-', "Don't verify response at all"},
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113 | {"nonce", OPT_NONCE, '-', "Add OCSP nonce to request"},
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114 | {"no_nonce", OPT_NO_NONCE, '-', "Don't add OCSP nonce to request"},
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115 | {"resp_no_certs", OPT_RESP_NO_CERTS, '-',
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116 | "Don't include any certificates in response"},
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117 | {"resp_key_id", OPT_RESP_KEY_ID, '-',
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118 | "Identify response by signing certificate key ID"},
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119 | {"no_certs", OPT_NO_CERTS, '-',
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120 | "Don't include any certificates in signed request"},
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121 | {"no_signature_verify", OPT_NO_SIGNATURE_VERIFY, '-',
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122 | "Don't check signature on response"},
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123 | {"no_cert_verify", OPT_NO_CERT_VERIFY, '-',
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124 | "Don't check signing certificate"},
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125 | {"no_chain", OPT_NO_CHAIN, '-', "Don't chain verify response"},
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126 | {"no_cert_checks", OPT_NO_CERT_CHECKS, '-',
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127 | "Don't do additional checks on signing certificate"},
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128 | {"no_explicit", OPT_NO_EXPLICIT, '-',
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129 | "Do not explicitly check the chain, just verify the root"},
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130 | {"trust_other", OPT_TRUST_OTHER, '-',
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131 | "Don't verify additional certificates"},
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132 | {"no_intern", OPT_NO_INTERN, '-',
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133 | "Don't search certificates contained in response for signer"},
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134 | {"badsig", OPT_BADSIG, '-',
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135 | "Corrupt last byte of loaded OSCP response signature (for test)"},
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136 | {"text", OPT_TEXT, '-', "Print text form of request and response"},
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137 | {"req_text", OPT_REQ_TEXT, '-', "Print text form of request"},
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138 | {"resp_text", OPT_RESP_TEXT, '-', "Print text form of response"},
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139 | {"reqin", OPT_REQIN, 's', "File with the DER-encoded request"},
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140 | {"respin", OPT_RESPIN, 's', "File with the DER-encoded response"},
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141 | {"signer", OPT_SIGNER, '<', "Certificate to sign OCSP request with"},
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142 | {"VAfile", OPT_VAFILE, '<', "Validator certificates file"},
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143 | {"sign_other", OPT_SIGN_OTHER, '<',
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144 | "Additional certificates to include in signed request"},
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145 | {"verify_other", OPT_VERIFY_OTHER, '<',
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146 | "Additional certificates to search for signer"},
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147 | {"CAfile", OPT_CAFILE, '<', "Trusted certificates file"},
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148 | {"CApath", OPT_CAPATH, '<', "Trusted certificates directory"},
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149 | {"no-CAfile", OPT_NOCAFILE, '-',
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150 | "Do not load the default certificates file"},
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151 | {"no-CApath", OPT_NOCAPATH, '-',
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152 | "Do not load certificates from the default certificates directory"},
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153 | {"validity_period", OPT_VALIDITY_PERIOD, 'u',
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154 | "Maximum validity discrepancy in seconds"},
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155 | {"status_age", OPT_STATUS_AGE, 'p', "Maximum status age in seconds"},
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156 | {"signkey", OPT_SIGNKEY, 's', "Private key to sign OCSP request with"},
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157 | {"reqout", OPT_REQOUT, 's', "Output file for the DER-encoded request"},
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158 | {"respout", OPT_RESPOUT, 's', "Output file for the DER-encoded response"},
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159 | {"path", OPT_PATH, 's', "Path to use in OCSP request"},
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160 | {"issuer", OPT_ISSUER, '<', "Issuer certificate"},
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161 | {"cert", OPT_CERT, '<', "Certificate to check"},
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162 | {"serial", OPT_SERIAL, 's', "Serial number to check"},
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163 | {"index", OPT_INDEX, '<', "Certificate status index file"},
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164 | {"CA", OPT_CA, '<', "CA certificate"},
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165 | {"nmin", OPT_NMIN, 'p', "Number of minutes before next update"},
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166 | {"nrequest", OPT_REQUEST, 'p',
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167 | "Number of requests to accept (default unlimited)"},
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168 | {"ndays", OPT_NDAYS, 'p', "Number of days before next update"},
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169 | {"rsigner", OPT_RSIGNER, '<',
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170 | "Responder certificate to sign responses with"},
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171 | {"rkey", OPT_RKEY, '<', "Responder key to sign responses with"},
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172 | {"rother", OPT_ROTHER, '<', "Other certificates to include in response"},
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173 | {"rmd", OPT_RMD, 's', "Digest Algorithm to use in signature of OCSP response"},
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174 | {"header", OPT_HEADER, 's', "key=value header to add"},
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175 | {"", OPT_MD, '-', "Any supported digest algorithm (sha1,sha256, ... )"},
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176 | OPT_V_OPTIONS,
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177 | {NULL}
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178 | };
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179 |
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180 | int ocsp_main(int argc, char **argv)
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181 | {
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182 | BIO *acbio = NULL, *cbio = NULL, *derbio = NULL, *out = NULL;
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183 | const EVP_MD *cert_id_md = NULL, *rsign_md = NULL;
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184 | int trailing_md = 0;
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185 | CA_DB *rdb = NULL;
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186 | EVP_PKEY *key = NULL, *rkey = NULL;
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187 | OCSP_BASICRESP *bs = NULL;
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188 | OCSP_REQUEST *req = NULL;
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189 | OCSP_RESPONSE *resp = NULL;
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190 | STACK_OF(CONF_VALUE) *headers = NULL;
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191 | STACK_OF(OCSP_CERTID) *ids = NULL;
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192 | STACK_OF(OPENSSL_STRING) *reqnames = NULL;
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193 | STACK_OF(X509) *sign_other = NULL, *verify_other = NULL, *rother = NULL;
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194 | STACK_OF(X509) *issuers = NULL;
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195 | X509 *issuer = NULL, *cert = NULL, *rca_cert = NULL;
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196 | X509 *signer = NULL, *rsigner = NULL;
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197 | X509_STORE *store = NULL;
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198 | X509_VERIFY_PARAM *vpm = NULL;
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199 | const char *CAfile = NULL, *CApath = NULL;
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200 | char *header, *value;
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201 | char *host = NULL, *port = NULL, *path = "/", *outfile = NULL;
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202 | char *rca_filename = NULL, *reqin = NULL, *respin = NULL;
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203 | char *reqout = NULL, *respout = NULL, *ridx_filename = NULL;
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204 | char *rsignfile = NULL, *rkeyfile = NULL;
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205 | char *sign_certfile = NULL, *verify_certfile = NULL, *rcertfile = NULL;
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206 | char *signfile = NULL, *keyfile = NULL;
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207 | char *thost = NULL, *tport = NULL, *tpath = NULL;
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208 | int noCAfile = 0, noCApath = 0;
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209 | int accept_count = -1, add_nonce = 1, noverify = 0, use_ssl = -1;
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210 | int vpmtouched = 0, badsig = 0, i, ignore_err = 0, nmin = 0, ndays = -1;
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211 | int req_text = 0, resp_text = 0, ret = 1;
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212 | #ifndef OPENSSL_NO_SOCK
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213 | int req_timeout = -1;
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214 | #endif
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215 | long nsec = MAX_VALIDITY_PERIOD, maxage = -1;
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216 | unsigned long sign_flags = 0, verify_flags = 0, rflags = 0;
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217 | OPTION_CHOICE o;
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218 | char *prog;
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219 |
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220 | reqnames = sk_OPENSSL_STRING_new_null();
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221 | if (!reqnames)
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222 | goto end;
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223 | ids = sk_OCSP_CERTID_new_null();
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224 | if (!ids)
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225 | goto end;
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226 | if ((vpm = X509_VERIFY_PARAM_new()) == NULL)
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227 | return 1;
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228 |
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229 | prog = opt_init(argc, argv, ocsp_options);
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230 | while ((o = opt_next()) != OPT_EOF) {
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231 | switch (o) {
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232 | case OPT_EOF:
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233 | case OPT_ERR:
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234 | opthelp:
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235 | BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
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236 | goto end;
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237 | case OPT_HELP:
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238 | ret = 0;
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239 | opt_help(ocsp_options);
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240 | goto end;
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241 | case OPT_OUTFILE:
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242 | outfile = opt_arg();
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243 | break;
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244 | case OPT_TIMEOUT:
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245 | #ifndef OPENSSL_NO_SOCK
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246 | req_timeout = atoi(opt_arg());
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247 | #endif
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248 | break;
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249 | case OPT_URL:
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250 | OPENSSL_free(thost);
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251 | OPENSSL_free(tport);
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252 | OPENSSL_free(tpath);
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253 | thost = tport = tpath = NULL;
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254 | if (!OCSP_parse_url(opt_arg(), &host, &port, &path, &use_ssl)) {
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255 | BIO_printf(bio_err, "%s Error parsing URL\n", prog);
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256 | goto end;
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257 | }
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258 | thost = host;
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259 | tport = port;
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260 | tpath = path;
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261 | break;
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262 | case OPT_HOST:
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263 | host = opt_arg();
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264 | break;
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265 | case OPT_PORT:
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266 | port = opt_arg();
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267 | break;
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268 | case OPT_IGNORE_ERR:
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269 | ignore_err = 1;
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270 | break;
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271 | case OPT_NOVERIFY:
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272 | noverify = 1;
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273 | break;
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274 | case OPT_NONCE:
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275 | add_nonce = 2;
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276 | break;
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277 | case OPT_NO_NONCE:
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278 | add_nonce = 0;
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279 | break;
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280 | case OPT_RESP_NO_CERTS:
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281 | rflags |= OCSP_NOCERTS;
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282 | break;
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283 | case OPT_RESP_KEY_ID:
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284 | rflags |= OCSP_RESPID_KEY;
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285 | break;
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286 | case OPT_NO_CERTS:
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287 | sign_flags |= OCSP_NOCERTS;
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288 | break;
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289 | case OPT_NO_SIGNATURE_VERIFY:
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290 | verify_flags |= OCSP_NOSIGS;
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291 | break;
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292 | case OPT_NO_CERT_VERIFY:
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293 | verify_flags |= OCSP_NOVERIFY;
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294 | break;
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295 | case OPT_NO_CHAIN:
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296 | verify_flags |= OCSP_NOCHAIN;
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297 | break;
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298 | case OPT_NO_CERT_CHECKS:
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299 | verify_flags |= OCSP_NOCHECKS;
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300 | break;
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301 | case OPT_NO_EXPLICIT:
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302 | verify_flags |= OCSP_NOEXPLICIT;
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303 | break;
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304 | case OPT_TRUST_OTHER:
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305 | verify_flags |= OCSP_TRUSTOTHER;
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306 | break;
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307 | case OPT_NO_INTERN:
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308 | verify_flags |= OCSP_NOINTERN;
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309 | break;
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310 | case OPT_BADSIG:
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311 | badsig = 1;
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312 | break;
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313 | case OPT_TEXT:
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314 | req_text = resp_text = 1;
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315 | break;
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316 | case OPT_REQ_TEXT:
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317 | req_text = 1;
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318 | break;
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319 | case OPT_RESP_TEXT:
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320 | resp_text = 1;
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321 | break;
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322 | case OPT_REQIN:
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323 | reqin = opt_arg();
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324 | break;
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325 | case OPT_RESPIN:
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326 | respin = opt_arg();
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327 | break;
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328 | case OPT_SIGNER:
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329 | signfile = opt_arg();
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330 | break;
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331 | case OPT_VAFILE:
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332 | verify_certfile = opt_arg();
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333 | verify_flags |= OCSP_TRUSTOTHER;
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334 | break;
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335 | case OPT_SIGN_OTHER:
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336 | sign_certfile = opt_arg();
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337 | break;
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338 | case OPT_VERIFY_OTHER:
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339 | verify_certfile = opt_arg();
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340 | break;
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341 | case OPT_CAFILE:
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342 | CAfile = opt_arg();
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343 | break;
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344 | case OPT_CAPATH:
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345 | CApath = opt_arg();
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346 | break;
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347 | case OPT_NOCAFILE:
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348 | noCAfile = 1;
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349 | break;
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350 | case OPT_NOCAPATH:
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351 | noCApath = 1;
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352 | break;
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353 | case OPT_V_CASES:
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354 | if (!opt_verify(o, vpm))
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355 | goto end;
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356 | vpmtouched++;
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357 | break;
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358 | case OPT_VALIDITY_PERIOD:
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359 | opt_long(opt_arg(), &nsec);
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360 | break;
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361 | case OPT_STATUS_AGE:
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362 | opt_long(opt_arg(), &maxage);
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363 | break;
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364 | case OPT_SIGNKEY:
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365 | keyfile = opt_arg();
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366 | break;
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367 | case OPT_REQOUT:
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368 | reqout = opt_arg();
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369 | break;
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370 | case OPT_RESPOUT:
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371 | respout = opt_arg();
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372 | break;
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373 | case OPT_PATH:
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374 | path = opt_arg();
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375 | break;
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376 | case OPT_ISSUER:
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377 | issuer = load_cert(opt_arg(), FORMAT_PEM, "issuer certificate");
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378 | if (issuer == NULL)
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379 | goto end;
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380 | if (issuers == NULL) {
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381 | if ((issuers = sk_X509_new_null()) == NULL)
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382 | goto end;
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383 | }
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384 | sk_X509_push(issuers, issuer);
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385 | break;
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386 | case OPT_CERT:
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387 | X509_free(cert);
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388 | cert = load_cert(opt_arg(), FORMAT_PEM, "certificate");
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389 | if (cert == NULL)
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390 | goto end;
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391 | if (cert_id_md == NULL)
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392 | cert_id_md = EVP_sha1();
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393 | if (!add_ocsp_cert(&req, cert, cert_id_md, issuer, ids))
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394 | goto end;
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395 | if (!sk_OPENSSL_STRING_push(reqnames, opt_arg()))
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396 | goto end;
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397 | trailing_md = 0;
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398 | break;
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399 | case OPT_SERIAL:
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400 | if (cert_id_md == NULL)
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401 | cert_id_md = EVP_sha1();
|
---|
402 | if (!add_ocsp_serial(&req, opt_arg(), cert_id_md, issuer, ids))
|
---|
403 | goto end;
|
---|
404 | if (!sk_OPENSSL_STRING_push(reqnames, opt_arg()))
|
---|
405 | goto end;
|
---|
406 | trailing_md = 0;
|
---|
407 | break;
|
---|
408 | case OPT_INDEX:
|
---|
409 | ridx_filename = opt_arg();
|
---|
410 | break;
|
---|
411 | case OPT_CA:
|
---|
412 | rca_filename = opt_arg();
|
---|
413 | break;
|
---|
414 | case OPT_NMIN:
|
---|
415 | opt_int(opt_arg(), &nmin);
|
---|
416 | if (ndays == -1)
|
---|
417 | ndays = 0;
|
---|
418 | break;
|
---|
419 | case OPT_REQUEST:
|
---|
420 | opt_int(opt_arg(), &accept_count);
|
---|
421 | break;
|
---|
422 | case OPT_NDAYS:
|
---|
423 | ndays = atoi(opt_arg());
|
---|
424 | break;
|
---|
425 | case OPT_RSIGNER:
|
---|
426 | rsignfile = opt_arg();
|
---|
427 | break;
|
---|
428 | case OPT_RKEY:
|
---|
429 | rkeyfile = opt_arg();
|
---|
430 | break;
|
---|
431 | case OPT_ROTHER:
|
---|
432 | rcertfile = opt_arg();
|
---|
433 | break;
|
---|
434 | case OPT_RMD: /* Response MessageDigest */
|
---|
435 | if (!opt_md(opt_arg(), &rsign_md))
|
---|
436 | goto end;
|
---|
437 | break;
|
---|
438 | case OPT_HEADER:
|
---|
439 | header = opt_arg();
|
---|
440 | value = strchr(header, '=');
|
---|
441 | if (value == NULL) {
|
---|
442 | BIO_printf(bio_err, "Missing = in header key=value\n");
|
---|
443 | goto opthelp;
|
---|
444 | }
|
---|
445 | *value++ = '\0';
|
---|
446 | if (!X509V3_add_value(header, value, &headers))
|
---|
447 | goto end;
|
---|
448 | break;
|
---|
449 | case OPT_MD:
|
---|
450 | if (trailing_md) {
|
---|
451 | BIO_printf(bio_err,
|
---|
452 | "%s: Digest must be before -cert or -serial\n",
|
---|
453 | prog);
|
---|
454 | goto opthelp;
|
---|
455 | }
|
---|
456 | if (!opt_md(opt_unknown(), &cert_id_md))
|
---|
457 | goto opthelp;
|
---|
458 | trailing_md = 1;
|
---|
459 | break;
|
---|
460 | }
|
---|
461 | }
|
---|
462 |
|
---|
463 | if (trailing_md) {
|
---|
464 | BIO_printf(bio_err, "%s: Digest must be before -cert or -serial\n",
|
---|
465 | prog);
|
---|
466 | goto opthelp;
|
---|
467 | }
|
---|
468 | argc = opt_num_rest();
|
---|
469 | if (argc != 0)
|
---|
470 | goto opthelp;
|
---|
471 |
|
---|
472 | /* Have we anything to do? */
|
---|
473 | if (!req && !reqin && !respin && !(port && ridx_filename))
|
---|
474 | goto opthelp;
|
---|
475 |
|
---|
476 | out = bio_open_default(outfile, 'w', FORMAT_TEXT);
|
---|
477 | if (out == NULL)
|
---|
478 | goto end;
|
---|
479 |
|
---|
480 | if (!req && (add_nonce != 2))
|
---|
481 | add_nonce = 0;
|
---|
482 |
|
---|
483 | if (!req && reqin) {
|
---|
484 | derbio = bio_open_default(reqin, 'r', FORMAT_ASN1);
|
---|
485 | if (derbio == NULL)
|
---|
486 | goto end;
|
---|
487 | req = d2i_OCSP_REQUEST_bio(derbio, NULL);
|
---|
488 | BIO_free(derbio);
|
---|
489 | if (!req) {
|
---|
490 | BIO_printf(bio_err, "Error reading OCSP request\n");
|
---|
491 | goto end;
|
---|
492 | }
|
---|
493 | }
|
---|
494 |
|
---|
495 | if (!req && port) {
|
---|
496 | acbio = init_responder(port);
|
---|
497 | if (!acbio)
|
---|
498 | goto end;
|
---|
499 | }
|
---|
500 |
|
---|
501 | if (rsignfile) {
|
---|
502 | if (!rkeyfile)
|
---|
503 | rkeyfile = rsignfile;
|
---|
504 | rsigner = load_cert(rsignfile, FORMAT_PEM, "responder certificate");
|
---|
505 | if (!rsigner) {
|
---|
506 | BIO_printf(bio_err, "Error loading responder certificate\n");
|
---|
507 | goto end;
|
---|
508 | }
|
---|
509 | rca_cert = load_cert(rca_filename, FORMAT_PEM, "CA certificate");
|
---|
510 | if (rcertfile) {
|
---|
511 | if (!load_certs(rcertfile, &rother, FORMAT_PEM, NULL,
|
---|
512 | "responder other certificates"))
|
---|
513 | goto end;
|
---|
514 | }
|
---|
515 | rkey = load_key(rkeyfile, FORMAT_PEM, 0, NULL, NULL,
|
---|
516 | "responder private key");
|
---|
517 | if (!rkey)
|
---|
518 | goto end;
|
---|
519 | }
|
---|
520 | if (acbio)
|
---|
521 | BIO_printf(bio_err, "Waiting for OCSP client connections...\n");
|
---|
522 |
|
---|
523 | redo_accept:
|
---|
524 |
|
---|
525 | if (acbio) {
|
---|
526 | if (!do_responder(&req, &cbio, acbio))
|
---|
527 | goto end;
|
---|
528 | if (!req) {
|
---|
529 | resp =
|
---|
530 | OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST,
|
---|
531 | NULL);
|
---|
532 | send_ocsp_response(cbio, resp);
|
---|
533 | goto done_resp;
|
---|
534 | }
|
---|
535 | }
|
---|
536 |
|
---|
537 | if (!req && (signfile || reqout || host || add_nonce || ridx_filename)) {
|
---|
538 | BIO_printf(bio_err, "Need an OCSP request for this operation!\n");
|
---|
539 | goto end;
|
---|
540 | }
|
---|
541 |
|
---|
542 | if (req && add_nonce)
|
---|
543 | OCSP_request_add1_nonce(req, NULL, -1);
|
---|
544 |
|
---|
545 | if (signfile) {
|
---|
546 | if (!keyfile)
|
---|
547 | keyfile = signfile;
|
---|
548 | signer = load_cert(signfile, FORMAT_PEM, "signer certificate");
|
---|
549 | if (!signer) {
|
---|
550 | BIO_printf(bio_err, "Error loading signer certificate\n");
|
---|
551 | goto end;
|
---|
552 | }
|
---|
553 | if (sign_certfile) {
|
---|
554 | if (!load_certs(sign_certfile, &sign_other, FORMAT_PEM, NULL,
|
---|
555 | "signer certificates"))
|
---|
556 | goto end;
|
---|
557 | }
|
---|
558 | key = load_key(keyfile, FORMAT_PEM, 0, NULL, NULL,
|
---|
559 | "signer private key");
|
---|
560 | if (!key)
|
---|
561 | goto end;
|
---|
562 |
|
---|
563 | if (!OCSP_request_sign
|
---|
564 | (req, signer, key, NULL, sign_other, sign_flags)) {
|
---|
565 | BIO_printf(bio_err, "Error signing OCSP request\n");
|
---|
566 | goto end;
|
---|
567 | }
|
---|
568 | }
|
---|
569 |
|
---|
570 | if (req_text && req)
|
---|
571 | OCSP_REQUEST_print(out, req, 0);
|
---|
572 |
|
---|
573 | if (reqout) {
|
---|
574 | derbio = bio_open_default(reqout, 'w', FORMAT_ASN1);
|
---|
575 | if (derbio == NULL)
|
---|
576 | goto end;
|
---|
577 | i2d_OCSP_REQUEST_bio(derbio, req);
|
---|
578 | BIO_free(derbio);
|
---|
579 | }
|
---|
580 |
|
---|
581 | if (ridx_filename && (!rkey || !rsigner || !rca_cert)) {
|
---|
582 | BIO_printf(bio_err,
|
---|
583 | "Need a responder certificate, key and CA for this operation!\n");
|
---|
584 | goto end;
|
---|
585 | }
|
---|
586 |
|
---|
587 | if (ridx_filename && !rdb) {
|
---|
588 | rdb = load_index(ridx_filename, NULL);
|
---|
589 | if (!rdb)
|
---|
590 | goto end;
|
---|
591 | if (!index_index(rdb))
|
---|
592 | goto end;
|
---|
593 | }
|
---|
594 |
|
---|
595 | if (rdb) {
|
---|
596 | make_ocsp_response(&resp, req, rdb, rca_cert, rsigner, rkey,
|
---|
597 | rsign_md, rother, rflags, nmin, ndays, badsig);
|
---|
598 | if (cbio)
|
---|
599 | send_ocsp_response(cbio, resp);
|
---|
600 | } else if (host) {
|
---|
601 | # ifndef OPENSSL_NO_SOCK
|
---|
602 | resp = process_responder(req, host, path,
|
---|
603 | port, use_ssl, headers, req_timeout);
|
---|
604 | if (!resp)
|
---|
605 | goto end;
|
---|
606 | # else
|
---|
607 | BIO_printf(bio_err,
|
---|
608 | "Error creating connect BIO - sockets not supported.\n");
|
---|
609 | goto end;
|
---|
610 | # endif
|
---|
611 | } else if (respin) {
|
---|
612 | derbio = bio_open_default(respin, 'r', FORMAT_ASN1);
|
---|
613 | if (derbio == NULL)
|
---|
614 | goto end;
|
---|
615 | resp = d2i_OCSP_RESPONSE_bio(derbio, NULL);
|
---|
616 | BIO_free(derbio);
|
---|
617 | if (!resp) {
|
---|
618 | BIO_printf(bio_err, "Error reading OCSP response\n");
|
---|
619 | goto end;
|
---|
620 | }
|
---|
621 | } else {
|
---|
622 | ret = 0;
|
---|
623 | goto end;
|
---|
624 | }
|
---|
625 |
|
---|
626 | done_resp:
|
---|
627 |
|
---|
628 | if (respout) {
|
---|
629 | derbio = bio_open_default(respout, 'w', FORMAT_ASN1);
|
---|
630 | if (derbio == NULL)
|
---|
631 | goto end;
|
---|
632 | i2d_OCSP_RESPONSE_bio(derbio, resp);
|
---|
633 | BIO_free(derbio);
|
---|
634 | }
|
---|
635 |
|
---|
636 | i = OCSP_response_status(resp);
|
---|
637 | if (i != OCSP_RESPONSE_STATUS_SUCCESSFUL) {
|
---|
638 | BIO_printf(out, "Responder Error: %s (%d)\n",
|
---|
639 | OCSP_response_status_str(i), i);
|
---|
640 | if (ignore_err)
|
---|
641 | goto redo_accept;
|
---|
642 | ret = 0;
|
---|
643 | goto end;
|
---|
644 | }
|
---|
645 |
|
---|
646 | if (resp_text)
|
---|
647 | OCSP_RESPONSE_print(out, resp, 0);
|
---|
648 |
|
---|
649 | /* If running as responder don't verify our own response */
|
---|
650 | if (cbio) {
|
---|
651 | /* If not unlimited, see if we took all we should. */
|
---|
652 | if (accept_count != -1 && --accept_count <= 0) {
|
---|
653 | ret = 0;
|
---|
654 | goto end;
|
---|
655 | }
|
---|
656 | BIO_free_all(cbio);
|
---|
657 | cbio = NULL;
|
---|
658 | OCSP_REQUEST_free(req);
|
---|
659 | req = NULL;
|
---|
660 | OCSP_RESPONSE_free(resp);
|
---|
661 | resp = NULL;
|
---|
662 | goto redo_accept;
|
---|
663 | }
|
---|
664 | if (ridx_filename) {
|
---|
665 | ret = 0;
|
---|
666 | goto end;
|
---|
667 | }
|
---|
668 |
|
---|
669 | if (!store) {
|
---|
670 | store = setup_verify(CAfile, CApath, noCAfile, noCApath);
|
---|
671 | if (!store)
|
---|
672 | goto end;
|
---|
673 | }
|
---|
674 | if (vpmtouched)
|
---|
675 | X509_STORE_set1_param(store, vpm);
|
---|
676 | if (verify_certfile) {
|
---|
677 | if (!load_certs(verify_certfile, &verify_other, FORMAT_PEM, NULL,
|
---|
678 | "validator certificate"))
|
---|
679 | goto end;
|
---|
680 | }
|
---|
681 |
|
---|
682 | bs = OCSP_response_get1_basic(resp);
|
---|
683 | if (!bs) {
|
---|
684 | BIO_printf(bio_err, "Error parsing response\n");
|
---|
685 | goto end;
|
---|
686 | }
|
---|
687 |
|
---|
688 | ret = 0;
|
---|
689 |
|
---|
690 | if (!noverify) {
|
---|
691 | if (req && ((i = OCSP_check_nonce(req, bs)) <= 0)) {
|
---|
692 | if (i == -1)
|
---|
693 | BIO_printf(bio_err, "WARNING: no nonce in response\n");
|
---|
694 | else {
|
---|
695 | BIO_printf(bio_err, "Nonce Verify error\n");
|
---|
696 | ret = 1;
|
---|
697 | goto end;
|
---|
698 | }
|
---|
699 | }
|
---|
700 |
|
---|
701 | i = OCSP_basic_verify(bs, verify_other, store, verify_flags);
|
---|
702 | if (i <= 0 && issuers) {
|
---|
703 | i = OCSP_basic_verify(bs, issuers, store, OCSP_TRUSTOTHER);
|
---|
704 | if (i > 0)
|
---|
705 | ERR_clear_error();
|
---|
706 | }
|
---|
707 | if (i <= 0) {
|
---|
708 | BIO_printf(bio_err, "Response Verify Failure\n");
|
---|
709 | ERR_print_errors(bio_err);
|
---|
710 | ret = 1;
|
---|
711 | } else
|
---|
712 | BIO_printf(bio_err, "Response verify OK\n");
|
---|
713 |
|
---|
714 | }
|
---|
715 |
|
---|
716 | print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage);
|
---|
717 |
|
---|
718 | end:
|
---|
719 | ERR_print_errors(bio_err);
|
---|
720 | X509_free(signer);
|
---|
721 | X509_STORE_free(store);
|
---|
722 | X509_VERIFY_PARAM_free(vpm);
|
---|
723 | EVP_PKEY_free(key);
|
---|
724 | EVP_PKEY_free(rkey);
|
---|
725 | X509_free(cert);
|
---|
726 | sk_X509_pop_free(issuers, X509_free);
|
---|
727 | X509_free(rsigner);
|
---|
728 | X509_free(rca_cert);
|
---|
729 | free_index(rdb);
|
---|
730 | BIO_free_all(cbio);
|
---|
731 | BIO_free_all(acbio);
|
---|
732 | BIO_free(out);
|
---|
733 | OCSP_REQUEST_free(req);
|
---|
734 | OCSP_RESPONSE_free(resp);
|
---|
735 | OCSP_BASICRESP_free(bs);
|
---|
736 | sk_OPENSSL_STRING_free(reqnames);
|
---|
737 | sk_OCSP_CERTID_free(ids);
|
---|
738 | sk_X509_pop_free(sign_other, X509_free);
|
---|
739 | sk_X509_pop_free(verify_other, X509_free);
|
---|
740 | sk_CONF_VALUE_pop_free(headers, X509V3_conf_free);
|
---|
741 | OPENSSL_free(thost);
|
---|
742 | OPENSSL_free(tport);
|
---|
743 | OPENSSL_free(tpath);
|
---|
744 |
|
---|
745 | return (ret);
|
---|
746 | }
|
---|
747 |
|
---|
748 | static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert,
|
---|
749 | const EVP_MD *cert_id_md, X509 *issuer,
|
---|
750 | STACK_OF(OCSP_CERTID) *ids)
|
---|
751 | {
|
---|
752 | OCSP_CERTID *id;
|
---|
753 | if (!issuer) {
|
---|
754 | BIO_printf(bio_err, "No issuer certificate specified\n");
|
---|
755 | return 0;
|
---|
756 | }
|
---|
757 | if (*req == NULL)
|
---|
758 | *req = OCSP_REQUEST_new();
|
---|
759 | if (*req == NULL)
|
---|
760 | goto err;
|
---|
761 | id = OCSP_cert_to_id(cert_id_md, cert, issuer);
|
---|
762 | if (!id || !sk_OCSP_CERTID_push(ids, id))
|
---|
763 | goto err;
|
---|
764 | if (!OCSP_request_add0_id(*req, id))
|
---|
765 | goto err;
|
---|
766 | return 1;
|
---|
767 |
|
---|
768 | err:
|
---|
769 | BIO_printf(bio_err, "Error Creating OCSP request\n");
|
---|
770 | return 0;
|
---|
771 | }
|
---|
772 |
|
---|
773 | static int add_ocsp_serial(OCSP_REQUEST **req, char *serial,
|
---|
774 | const EVP_MD *cert_id_md, X509 *issuer,
|
---|
775 | STACK_OF(OCSP_CERTID) *ids)
|
---|
776 | {
|
---|
777 | OCSP_CERTID *id;
|
---|
778 | X509_NAME *iname;
|
---|
779 | ASN1_BIT_STRING *ikey;
|
---|
780 | ASN1_INTEGER *sno;
|
---|
781 | if (!issuer) {
|
---|
782 | BIO_printf(bio_err, "No issuer certificate specified\n");
|
---|
783 | return 0;
|
---|
784 | }
|
---|
785 | if (*req == NULL)
|
---|
786 | *req = OCSP_REQUEST_new();
|
---|
787 | if (*req == NULL)
|
---|
788 | goto err;
|
---|
789 | iname = X509_get_subject_name(issuer);
|
---|
790 | ikey = X509_get0_pubkey_bitstr(issuer);
|
---|
791 | sno = s2i_ASN1_INTEGER(NULL, serial);
|
---|
792 | if (!sno) {
|
---|
793 | BIO_printf(bio_err, "Error converting serial number %s\n", serial);
|
---|
794 | return 0;
|
---|
795 | }
|
---|
796 | id = OCSP_cert_id_new(cert_id_md, iname, ikey, sno);
|
---|
797 | ASN1_INTEGER_free(sno);
|
---|
798 | if (id == NULL || !sk_OCSP_CERTID_push(ids, id))
|
---|
799 | goto err;
|
---|
800 | if (!OCSP_request_add0_id(*req, id))
|
---|
801 | goto err;
|
---|
802 | return 1;
|
---|
803 |
|
---|
804 | err:
|
---|
805 | BIO_printf(bio_err, "Error Creating OCSP request\n");
|
---|
806 | return 0;
|
---|
807 | }
|
---|
808 |
|
---|
809 | static void print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
|
---|
810 | STACK_OF(OPENSSL_STRING) *names,
|
---|
811 | STACK_OF(OCSP_CERTID) *ids, long nsec,
|
---|
812 | long maxage)
|
---|
813 | {
|
---|
814 | OCSP_CERTID *id;
|
---|
815 | const char *name;
|
---|
816 | int i, status, reason;
|
---|
817 | ASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd;
|
---|
818 |
|
---|
819 | if (!bs || !req || !sk_OPENSSL_STRING_num(names)
|
---|
820 | || !sk_OCSP_CERTID_num(ids))
|
---|
821 | return;
|
---|
822 |
|
---|
823 | for (i = 0; i < sk_OCSP_CERTID_num(ids); i++) {
|
---|
824 | id = sk_OCSP_CERTID_value(ids, i);
|
---|
825 | name = sk_OPENSSL_STRING_value(names, i);
|
---|
826 | BIO_printf(out, "%s: ", name);
|
---|
827 |
|
---|
828 | if (!OCSP_resp_find_status(bs, id, &status, &reason,
|
---|
829 | &rev, &thisupd, &nextupd)) {
|
---|
830 | BIO_puts(out, "ERROR: No Status found.\n");
|
---|
831 | continue;
|
---|
832 | }
|
---|
833 |
|
---|
834 | /*
|
---|
835 | * Check validity: if invalid write to output BIO so we know which
|
---|
836 | * response this refers to.
|
---|
837 | */
|
---|
838 | if (!OCSP_check_validity(thisupd, nextupd, nsec, maxage)) {
|
---|
839 | BIO_puts(out, "WARNING: Status times invalid.\n");
|
---|
840 | ERR_print_errors(out);
|
---|
841 | }
|
---|
842 | BIO_printf(out, "%s\n", OCSP_cert_status_str(status));
|
---|
843 |
|
---|
844 | BIO_puts(out, "\tThis Update: ");
|
---|
845 | ASN1_GENERALIZEDTIME_print(out, thisupd);
|
---|
846 | BIO_puts(out, "\n");
|
---|
847 |
|
---|
848 | if (nextupd) {
|
---|
849 | BIO_puts(out, "\tNext Update: ");
|
---|
850 | ASN1_GENERALIZEDTIME_print(out, nextupd);
|
---|
851 | BIO_puts(out, "\n");
|
---|
852 | }
|
---|
853 |
|
---|
854 | if (status != V_OCSP_CERTSTATUS_REVOKED)
|
---|
855 | continue;
|
---|
856 |
|
---|
857 | if (reason != -1)
|
---|
858 | BIO_printf(out, "\tReason: %s\n", OCSP_crl_reason_str(reason));
|
---|
859 |
|
---|
860 | BIO_puts(out, "\tRevocation Time: ");
|
---|
861 | ASN1_GENERALIZEDTIME_print(out, rev);
|
---|
862 | BIO_puts(out, "\n");
|
---|
863 | }
|
---|
864 | }
|
---|
865 |
|
---|
866 | static void make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req,
|
---|
867 | CA_DB *db, X509 *ca, X509 *rcert,
|
---|
868 | EVP_PKEY *rkey, const EVP_MD *rmd,
|
---|
869 | STACK_OF(X509) *rother, unsigned long flags,
|
---|
870 | int nmin, int ndays, int badsig)
|
---|
871 | {
|
---|
872 | ASN1_TIME *thisupd = NULL, *nextupd = NULL;
|
---|
873 | OCSP_CERTID *cid, *ca_id = NULL;
|
---|
874 | OCSP_BASICRESP *bs = NULL;
|
---|
875 | int i, id_count;
|
---|
876 |
|
---|
877 | id_count = OCSP_request_onereq_count(req);
|
---|
878 |
|
---|
879 | if (id_count <= 0) {
|
---|
880 | *resp =
|
---|
881 | OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
|
---|
882 | goto end;
|
---|
883 | }
|
---|
884 |
|
---|
885 | bs = OCSP_BASICRESP_new();
|
---|
886 | thisupd = X509_gmtime_adj(NULL, 0);
|
---|
887 | if (ndays != -1)
|
---|
888 | nextupd = X509_time_adj_ex(NULL, ndays, nmin * 60, NULL);
|
---|
889 |
|
---|
890 | /* Examine each certificate id in the request */
|
---|
891 | for (i = 0; i < id_count; i++) {
|
---|
892 | OCSP_ONEREQ *one;
|
---|
893 | ASN1_INTEGER *serial;
|
---|
894 | char **inf;
|
---|
895 | ASN1_OBJECT *cert_id_md_oid;
|
---|
896 | const EVP_MD *cert_id_md;
|
---|
897 | one = OCSP_request_onereq_get0(req, i);
|
---|
898 | cid = OCSP_onereq_get0_id(one);
|
---|
899 |
|
---|
900 | OCSP_id_get0_info(NULL, &cert_id_md_oid, NULL, NULL, cid);
|
---|
901 |
|
---|
902 | cert_id_md = EVP_get_digestbyobj(cert_id_md_oid);
|
---|
903 | if (!cert_id_md) {
|
---|
904 | *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_INTERNALERROR,
|
---|
905 | NULL);
|
---|
906 | goto end;
|
---|
907 | }
|
---|
908 | OCSP_CERTID_free(ca_id);
|
---|
909 | ca_id = OCSP_cert_to_id(cert_id_md, NULL, ca);
|
---|
910 |
|
---|
911 | /* Is this request about our CA? */
|
---|
912 | if (OCSP_id_issuer_cmp(ca_id, cid)) {
|
---|
913 | OCSP_basic_add1_status(bs, cid,
|
---|
914 | V_OCSP_CERTSTATUS_UNKNOWN,
|
---|
915 | 0, NULL, thisupd, nextupd);
|
---|
916 | continue;
|
---|
917 | }
|
---|
918 | OCSP_id_get0_info(NULL, NULL, NULL, &serial, cid);
|
---|
919 | inf = lookup_serial(db, serial);
|
---|
920 | if (!inf)
|
---|
921 | OCSP_basic_add1_status(bs, cid,
|
---|
922 | V_OCSP_CERTSTATUS_UNKNOWN,
|
---|
923 | 0, NULL, thisupd, nextupd);
|
---|
924 | else if (inf[DB_type][0] == DB_TYPE_VAL)
|
---|
925 | OCSP_basic_add1_status(bs, cid,
|
---|
926 | V_OCSP_CERTSTATUS_GOOD,
|
---|
927 | 0, NULL, thisupd, nextupd);
|
---|
928 | else if (inf[DB_type][0] == DB_TYPE_REV) {
|
---|
929 | ASN1_OBJECT *inst = NULL;
|
---|
930 | ASN1_TIME *revtm = NULL;
|
---|
931 | ASN1_GENERALIZEDTIME *invtm = NULL;
|
---|
932 | OCSP_SINGLERESP *single;
|
---|
933 | int reason = -1;
|
---|
934 | unpack_revinfo(&revtm, &reason, &inst, &invtm, inf[DB_rev_date]);
|
---|
935 | single = OCSP_basic_add1_status(bs, cid,
|
---|
936 | V_OCSP_CERTSTATUS_REVOKED,
|
---|
937 | reason, revtm, thisupd, nextupd);
|
---|
938 | if (invtm)
|
---|
939 | OCSP_SINGLERESP_add1_ext_i2d(single, NID_invalidity_date,
|
---|
940 | invtm, 0, 0);
|
---|
941 | else if (inst)
|
---|
942 | OCSP_SINGLERESP_add1_ext_i2d(single,
|
---|
943 | NID_hold_instruction_code, inst,
|
---|
944 | 0, 0);
|
---|
945 | ASN1_OBJECT_free(inst);
|
---|
946 | ASN1_TIME_free(revtm);
|
---|
947 | ASN1_GENERALIZEDTIME_free(invtm);
|
---|
948 | }
|
---|
949 | }
|
---|
950 |
|
---|
951 | OCSP_copy_nonce(bs, req);
|
---|
952 |
|
---|
953 | OCSP_basic_sign(bs, rcert, rkey, rmd, rother, flags);
|
---|
954 |
|
---|
955 | if (badsig) {
|
---|
956 | const ASN1_OCTET_STRING *sig = OCSP_resp_get0_signature(bs);
|
---|
957 | corrupt_signature(sig);
|
---|
958 | }
|
---|
959 |
|
---|
960 | *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_SUCCESSFUL, bs);
|
---|
961 |
|
---|
962 | end:
|
---|
963 | ASN1_TIME_free(thisupd);
|
---|
964 | ASN1_TIME_free(nextupd);
|
---|
965 | OCSP_CERTID_free(ca_id);
|
---|
966 | OCSP_BASICRESP_free(bs);
|
---|
967 | }
|
---|
968 |
|
---|
969 | static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser)
|
---|
970 | {
|
---|
971 | int i;
|
---|
972 | BIGNUM *bn = NULL;
|
---|
973 | char *itmp, *row[DB_NUMBER], **rrow;
|
---|
974 | for (i = 0; i < DB_NUMBER; i++)
|
---|
975 | row[i] = NULL;
|
---|
976 | bn = ASN1_INTEGER_to_BN(ser, NULL);
|
---|
977 | OPENSSL_assert(bn); /* FIXME: should report an error at this
|
---|
978 | * point and abort */
|
---|
979 | if (BN_is_zero(bn))
|
---|
980 | itmp = OPENSSL_strdup("00");
|
---|
981 | else
|
---|
982 | itmp = BN_bn2hex(bn);
|
---|
983 | row[DB_serial] = itmp;
|
---|
984 | BN_free(bn);
|
---|
985 | rrow = TXT_DB_get_by_index(db->db, DB_serial, row);
|
---|
986 | OPENSSL_free(itmp);
|
---|
987 | return rrow;
|
---|
988 | }
|
---|
989 |
|
---|
990 | /* Quick and dirty OCSP server: read in and parse input request */
|
---|
991 |
|
---|
992 | static BIO *init_responder(const char *port)
|
---|
993 | {
|
---|
994 | # ifdef OPENSSL_NO_SOCK
|
---|
995 | BIO_printf(bio_err,
|
---|
996 | "Error setting up accept BIO - sockets not supported.\n");
|
---|
997 | return NULL;
|
---|
998 | # else
|
---|
999 | BIO *acbio = NULL, *bufbio = NULL;
|
---|
1000 |
|
---|
1001 | bufbio = BIO_new(BIO_f_buffer());
|
---|
1002 | if (bufbio == NULL)
|
---|
1003 | goto err;
|
---|
1004 | acbio = BIO_new(BIO_s_accept());
|
---|
1005 | if (acbio == NULL
|
---|
1006 | || BIO_set_bind_mode(acbio, BIO_BIND_REUSEADDR) < 0
|
---|
1007 | || BIO_set_accept_port(acbio, port) < 0) {
|
---|
1008 | BIO_printf(bio_err, "Error setting up accept BIO\n");
|
---|
1009 | ERR_print_errors(bio_err);
|
---|
1010 | goto err;
|
---|
1011 | }
|
---|
1012 |
|
---|
1013 | BIO_set_accept_bios(acbio, bufbio);
|
---|
1014 | bufbio = NULL;
|
---|
1015 | if (BIO_do_accept(acbio) <= 0) {
|
---|
1016 | BIO_printf(bio_err, "Error starting accept\n");
|
---|
1017 | ERR_print_errors(bio_err);
|
---|
1018 | goto err;
|
---|
1019 | }
|
---|
1020 |
|
---|
1021 | return acbio;
|
---|
1022 |
|
---|
1023 | err:
|
---|
1024 | BIO_free_all(acbio);
|
---|
1025 | BIO_free(bufbio);
|
---|
1026 | return NULL;
|
---|
1027 | # endif
|
---|
1028 | }
|
---|
1029 |
|
---|
1030 | # ifndef OPENSSL_NO_SOCK
|
---|
1031 | /*
|
---|
1032 | * Decode %xx URL-decoding in-place. Ignores mal-formed sequences.
|
---|
1033 | */
|
---|
1034 | static int urldecode(char *p)
|
---|
1035 | {
|
---|
1036 | unsigned char *out = (unsigned char *)p;
|
---|
1037 | unsigned char *save = out;
|
---|
1038 |
|
---|
1039 | for (; *p; p++) {
|
---|
1040 | if (*p != '%')
|
---|
1041 | *out++ = *p;
|
---|
1042 | else if (isxdigit(_UC(p[1])) && isxdigit(_UC(p[2]))) {
|
---|
1043 | /* Don't check, can't fail because of ixdigit() call. */
|
---|
1044 | *out++ = (OPENSSL_hexchar2int(p[1]) << 4)
|
---|
1045 | | OPENSSL_hexchar2int(p[2]);
|
---|
1046 | p += 2;
|
---|
1047 | }
|
---|
1048 | else
|
---|
1049 | return -1;
|
---|
1050 | }
|
---|
1051 | *out = '\0';
|
---|
1052 | return (int)(out - save);
|
---|
1053 | }
|
---|
1054 | # endif
|
---|
1055 |
|
---|
1056 | static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio)
|
---|
1057 | {
|
---|
1058 | # ifdef OPENSSL_NO_SOCK
|
---|
1059 | return 0;
|
---|
1060 | # else
|
---|
1061 | int len;
|
---|
1062 | OCSP_REQUEST *req = NULL;
|
---|
1063 | char inbuf[2048], reqbuf[2048];
|
---|
1064 | char *p, *q;
|
---|
1065 | BIO *cbio = NULL, *getbio = NULL, *b64 = NULL;
|
---|
1066 |
|
---|
1067 | if (BIO_do_accept(acbio) <= 0) {
|
---|
1068 | BIO_printf(bio_err, "Error accepting connection\n");
|
---|
1069 | ERR_print_errors(bio_err);
|
---|
1070 | return 0;
|
---|
1071 | }
|
---|
1072 |
|
---|
1073 | cbio = BIO_pop(acbio);
|
---|
1074 | *pcbio = cbio;
|
---|
1075 |
|
---|
1076 | /* Read the request line. */
|
---|
1077 | len = BIO_gets(cbio, reqbuf, sizeof reqbuf);
|
---|
1078 | if (len <= 0)
|
---|
1079 | return 1;
|
---|
1080 | if (strncmp(reqbuf, "GET ", 4) == 0) {
|
---|
1081 | /* Expecting GET {sp} /URL {sp} HTTP/1.x */
|
---|
1082 | for (p = reqbuf + 4; *p == ' '; ++p)
|
---|
1083 | continue;
|
---|
1084 | if (*p != '/') {
|
---|
1085 | BIO_printf(bio_err, "Invalid request -- bad URL\n");
|
---|
1086 | return 1;
|
---|
1087 | }
|
---|
1088 | p++;
|
---|
1089 |
|
---|
1090 | /* Splice off the HTTP version identifier. */
|
---|
1091 | for (q = p; *q; q++)
|
---|
1092 | if (*q == ' ')
|
---|
1093 | break;
|
---|
1094 | if (strncmp(q, " HTTP/1.", 8) != 0) {
|
---|
1095 | BIO_printf(bio_err, "Invalid request -- bad HTTP vesion\n");
|
---|
1096 | return 1;
|
---|
1097 | }
|
---|
1098 | *q = '\0';
|
---|
1099 | len = urldecode(p);
|
---|
1100 | if (len <= 0) {
|
---|
1101 | BIO_printf(bio_err, "Invalid request -- bad URL encoding\n");
|
---|
1102 | return 1;
|
---|
1103 | }
|
---|
1104 | if ((getbio = BIO_new_mem_buf(p, len)) == NULL
|
---|
1105 | || (b64 = BIO_new(BIO_f_base64())) == NULL) {
|
---|
1106 | BIO_printf(bio_err, "Could not allocate memory\n");
|
---|
1107 | ERR_print_errors(bio_err);
|
---|
1108 | return 1;
|
---|
1109 | }
|
---|
1110 | BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
|
---|
1111 | getbio = BIO_push(b64, getbio);
|
---|
1112 | } else if (strncmp(reqbuf, "POST ", 5) != 0) {
|
---|
1113 | BIO_printf(bio_err, "Invalid request -- bad HTTP verb\n");
|
---|
1114 | return 1;
|
---|
1115 | }
|
---|
1116 |
|
---|
1117 | /* Read and skip past the headers. */
|
---|
1118 | for (;;) {
|
---|
1119 | len = BIO_gets(cbio, inbuf, sizeof inbuf);
|
---|
1120 | if (len <= 0)
|
---|
1121 | return 1;
|
---|
1122 | if ((inbuf[0] == '\r') || (inbuf[0] == '\n'))
|
---|
1123 | break;
|
---|
1124 | }
|
---|
1125 |
|
---|
1126 | /* Try to read OCSP request */
|
---|
1127 | if (getbio) {
|
---|
1128 | req = d2i_OCSP_REQUEST_bio(getbio, NULL);
|
---|
1129 | BIO_free_all(getbio);
|
---|
1130 | } else
|
---|
1131 | req = d2i_OCSP_REQUEST_bio(cbio, NULL);
|
---|
1132 |
|
---|
1133 | if (!req) {
|
---|
1134 | BIO_printf(bio_err, "Error parsing OCSP request\n");
|
---|
1135 | ERR_print_errors(bio_err);
|
---|
1136 | }
|
---|
1137 |
|
---|
1138 | *preq = req;
|
---|
1139 |
|
---|
1140 | return 1;
|
---|
1141 | # endif
|
---|
1142 | }
|
---|
1143 |
|
---|
1144 | static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp)
|
---|
1145 | {
|
---|
1146 | char http_resp[] =
|
---|
1147 | "HTTP/1.0 200 OK\r\nContent-type: application/ocsp-response\r\n"
|
---|
1148 | "Content-Length: %d\r\n\r\n";
|
---|
1149 | if (!cbio)
|
---|
1150 | return 0;
|
---|
1151 | BIO_printf(cbio, http_resp, i2d_OCSP_RESPONSE(resp, NULL));
|
---|
1152 | i2d_OCSP_RESPONSE_bio(cbio, resp);
|
---|
1153 | (void)BIO_flush(cbio);
|
---|
1154 | return 1;
|
---|
1155 | }
|
---|
1156 |
|
---|
1157 | # ifndef OPENSSL_NO_SOCK
|
---|
1158 | static OCSP_RESPONSE *query_responder(BIO *cbio, const char *host,
|
---|
1159 | const char *path,
|
---|
1160 | const STACK_OF(CONF_VALUE) *headers,
|
---|
1161 | OCSP_REQUEST *req, int req_timeout)
|
---|
1162 | {
|
---|
1163 | int fd;
|
---|
1164 | int rv;
|
---|
1165 | int i;
|
---|
1166 | int add_host = 1;
|
---|
1167 | OCSP_REQ_CTX *ctx = NULL;
|
---|
1168 | OCSP_RESPONSE *rsp = NULL;
|
---|
1169 | fd_set confds;
|
---|
1170 | struct timeval tv;
|
---|
1171 |
|
---|
1172 | if (req_timeout != -1)
|
---|
1173 | BIO_set_nbio(cbio, 1);
|
---|
1174 |
|
---|
1175 | rv = BIO_do_connect(cbio);
|
---|
1176 |
|
---|
1177 | if ((rv <= 0) && ((req_timeout == -1) || !BIO_should_retry(cbio))) {
|
---|
1178 | BIO_puts(bio_err, "Error connecting BIO\n");
|
---|
1179 | return NULL;
|
---|
1180 | }
|
---|
1181 |
|
---|
1182 | if (BIO_get_fd(cbio, &fd) < 0) {
|
---|
1183 | BIO_puts(bio_err, "Can't get connection fd\n");
|
---|
1184 | goto err;
|
---|
1185 | }
|
---|
1186 |
|
---|
1187 | if (req_timeout != -1 && rv <= 0) {
|
---|
1188 | FD_ZERO(&confds);
|
---|
1189 | openssl_fdset(fd, &confds);
|
---|
1190 | tv.tv_usec = 0;
|
---|
1191 | tv.tv_sec = req_timeout;
|
---|
1192 | rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
|
---|
1193 | if (rv == 0) {
|
---|
1194 | BIO_puts(bio_err, "Timeout on connect\n");
|
---|
1195 | return NULL;
|
---|
1196 | }
|
---|
1197 | }
|
---|
1198 |
|
---|
1199 | ctx = OCSP_sendreq_new(cbio, path, NULL, -1);
|
---|
1200 | if (ctx == NULL)
|
---|
1201 | return NULL;
|
---|
1202 |
|
---|
1203 | for (i = 0; i < sk_CONF_VALUE_num(headers); i++) {
|
---|
1204 | CONF_VALUE *hdr = sk_CONF_VALUE_value(headers, i);
|
---|
1205 | if (add_host == 1 && strcasecmp("host", hdr->name) == 0)
|
---|
1206 | add_host = 0;
|
---|
1207 | if (!OCSP_REQ_CTX_add1_header(ctx, hdr->name, hdr->value))
|
---|
1208 | goto err;
|
---|
1209 | }
|
---|
1210 |
|
---|
1211 | if (add_host == 1 && OCSP_REQ_CTX_add1_header(ctx, "Host", host) == 0)
|
---|
1212 | goto err;
|
---|
1213 |
|
---|
1214 | if (!OCSP_REQ_CTX_set1_req(ctx, req))
|
---|
1215 | goto err;
|
---|
1216 |
|
---|
1217 | for (;;) {
|
---|
1218 | rv = OCSP_sendreq_nbio(&rsp, ctx);
|
---|
1219 | if (rv != -1)
|
---|
1220 | break;
|
---|
1221 | if (req_timeout == -1)
|
---|
1222 | continue;
|
---|
1223 | FD_ZERO(&confds);
|
---|
1224 | openssl_fdset(fd, &confds);
|
---|
1225 | tv.tv_usec = 0;
|
---|
1226 | tv.tv_sec = req_timeout;
|
---|
1227 | if (BIO_should_read(cbio))
|
---|
1228 | rv = select(fd + 1, (void *)&confds, NULL, NULL, &tv);
|
---|
1229 | else if (BIO_should_write(cbio))
|
---|
1230 | rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
|
---|
1231 | else {
|
---|
1232 | BIO_puts(bio_err, "Unexpected retry condition\n");
|
---|
1233 | goto err;
|
---|
1234 | }
|
---|
1235 | if (rv == 0) {
|
---|
1236 | BIO_puts(bio_err, "Timeout on request\n");
|
---|
1237 | break;
|
---|
1238 | }
|
---|
1239 | if (rv == -1) {
|
---|
1240 | BIO_puts(bio_err, "Select error\n");
|
---|
1241 | break;
|
---|
1242 | }
|
---|
1243 |
|
---|
1244 | }
|
---|
1245 | err:
|
---|
1246 | OCSP_REQ_CTX_free(ctx);
|
---|
1247 |
|
---|
1248 | return rsp;
|
---|
1249 | }
|
---|
1250 |
|
---|
1251 | OCSP_RESPONSE *process_responder(OCSP_REQUEST *req,
|
---|
1252 | const char *host, const char *path,
|
---|
1253 | const char *port, int use_ssl,
|
---|
1254 | STACK_OF(CONF_VALUE) *headers,
|
---|
1255 | int req_timeout)
|
---|
1256 | {
|
---|
1257 | BIO *cbio = NULL;
|
---|
1258 | SSL_CTX *ctx = NULL;
|
---|
1259 | OCSP_RESPONSE *resp = NULL;
|
---|
1260 |
|
---|
1261 | cbio = BIO_new_connect(host);
|
---|
1262 | if (!cbio) {
|
---|
1263 | BIO_printf(bio_err, "Error creating connect BIO\n");
|
---|
1264 | goto end;
|
---|
1265 | }
|
---|
1266 | if (port)
|
---|
1267 | BIO_set_conn_port(cbio, port);
|
---|
1268 | if (use_ssl == 1) {
|
---|
1269 | BIO *sbio;
|
---|
1270 | ctx = SSL_CTX_new(TLS_client_method());
|
---|
1271 | if (ctx == NULL) {
|
---|
1272 | BIO_printf(bio_err, "Error creating SSL context.\n");
|
---|
1273 | goto end;
|
---|
1274 | }
|
---|
1275 | SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY);
|
---|
1276 | sbio = BIO_new_ssl(ctx, 1);
|
---|
1277 | cbio = BIO_push(sbio, cbio);
|
---|
1278 | }
|
---|
1279 |
|
---|
1280 | resp = query_responder(cbio, host, path, headers, req, req_timeout);
|
---|
1281 | if (!resp)
|
---|
1282 | BIO_printf(bio_err, "Error querying OCSP responder\n");
|
---|
1283 | end:
|
---|
1284 | BIO_free_all(cbio);
|
---|
1285 | SSL_CTX_free(ctx);
|
---|
1286 | return resp;
|
---|
1287 | }
|
---|
1288 | # endif
|
---|
1289 |
|
---|
1290 | #endif
|
---|