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ocsp.c
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/*
* Written by Dr Stephen N Henson ([email protected]) for the OpenSSL project
* 2000.
*/
/* ====================================================================
* Copyright (c) 1999 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* ([email protected]). This product includes software written by Tim
* Hudson ([email protected]).
*
*/
#ifndef OPENSSL_NO_OCSP
# ifdef OPENSSL_SYS_VMS
# define _XOPEN_SOURCE_EXTENDED/* So fd_set and friends get properly defined
* on OpenVMS */
# endif
# define USE_SOCKETS
# include <stdio.h>
# include <stdlib.h>
# include <string.h>
# include <time.h>
# include <ctype.h>
# include "apps.h" /* needs to be included before the openssl
* headers! */
# include <openssl/e_os2.h>
# include <openssl/crypto.h>
# include <openssl/err.h>
# include <openssl/ssl.h>
# include <openssl/evp.h>
# include <openssl/bn.h>
# include <openssl/x509v3.h>
# if defined(NETWARE_CLIB)
# ifdef NETWARE_BSDSOCK
# include <sys/socket.h>
# include <sys/bsdskt.h>
# else
# include <novsock2.h>
# endif
# elif defined(NETWARE_LIBC)
# ifdef NETWARE_BSDSOCK
# include <sys/select.h>
# else
# include <novsock2.h>
# endif
# endif
/* Maximum leeway in validity period: default 5 minutes */
# define MAX_VALIDITY_PERIOD (5 * 60)
static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert,
const EVP_MD *cert_id_md, X509 *issuer,
STACK_OF(OCSP_CERTID) *ids);
static int add_ocsp_serial(OCSP_REQUEST **req, char *serial,
const EVP_MD *cert_id_md, X509 *issuer,
STACK_OF(OCSP_CERTID) *ids);
static void print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
STACK_OF(OPENSSL_STRING) *names,
STACK_OF(OCSP_CERTID) *ids, long nsec,
long maxage);
static void make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req,
CA_DB *db, X509 *ca, X509 *rcert,
EVP_PKEY *rkey, const EVP_MD *md,
STACK_OF(X509) *rother, unsigned long flags,
int nmin, int ndays, int badsig);
static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser);
static BIO *init_responder(const char *port);
static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio,
const char *port);
static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp);
static OCSP_RESPONSE *query_responder(BIO *cbio, const char *host,
const char *path,
const STACK_OF(CONF_VALUE) *headers,
OCSP_REQUEST *req, int req_timeout);
typedef enum OPTION_choice {
OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
OPT_OUTFILE, OPT_TIMEOUT, OPT_URL, OPT_HOST, OPT_PORT,
OPT_IGNORE_ERR, OPT_NOVERIFY, OPT_NONCE, OPT_NO_NONCE,
OPT_RESP_NO_CERTS, OPT_RESP_KEY_ID, OPT_NO_CERTS,
OPT_NO_SIGNATURE_VERIFY, OPT_NO_CERT_VERIFY, OPT_NO_CHAIN,
OPT_NO_CERT_CHECKS, OPT_NO_EXPLICIT, OPT_TRUST_OTHER,
OPT_NO_INTERN, OPT_BADSIG, OPT_TEXT, OPT_REQ_TEXT, OPT_RESP_TEXT,
OPT_REQIN, OPT_RESPIN, OPT_SIGNER, OPT_VAFILE, OPT_SIGN_OTHER,
OPT_VERIFY_OTHER, OPT_CAFILE, OPT_CAPATH, OPT_NOCAFILE, OPT_NOCAPATH,
OPT_VALIDITY_PERIOD, OPT_STATUS_AGE, OPT_SIGNKEY, OPT_REQOUT,
OPT_RESPOUT, OPT_PATH, OPT_ISSUER, OPT_CERT, OPT_SERIAL,
OPT_INDEX, OPT_CA, OPT_NMIN, OPT_REQUEST, OPT_NDAYS, OPT_RSIGNER,
OPT_RKEY, OPT_ROTHER, OPT_RMD, OPT_HEADER,
OPT_V_ENUM,
OPT_MD
} OPTION_CHOICE;
OPTIONS ocsp_options[] = {
{"help", OPT_HELP, '-', "Display this summary"},
{"out", OPT_OUTFILE, '>', "Output filename"},
{"timeout", OPT_TIMEOUT, 'p'},
{"url", OPT_URL, 's', "Responder URL"},
{"host", OPT_HOST, 's', "host:prot top to connect to"},
{"port", OPT_PORT, 'p', "Port to run responder on"},
{"ignore_err", OPT_IGNORE_ERR, '-'},
{"noverify", OPT_NOVERIFY, '-', "Don't verify response at all"},
{"nonce", OPT_NONCE, '-', "Add OCSP nonce to request"},
{"no_nonce", OPT_NO_NONCE, '-', "Don't add OCSP nonce to request"},
{"resp_no_certs", OPT_RESP_NO_CERTS, '-',
"Don't include any certificates in response"},
{"resp_key_id", OPT_RESP_KEY_ID, '-',
"Identify reponse by signing certificate key ID"},
{"no_certs", OPT_NO_CERTS, '-',
"Don't include any certificates in signed request"},
{"no_signature_verify", OPT_NO_SIGNATURE_VERIFY, '-',
"Don't check signature on response"},
{"no_cert_verify", OPT_NO_CERT_VERIFY, '-',
"Don't check signing certificate"},
{"no_chain", OPT_NO_CHAIN, '-', "Don't chain verify response"},
{"no_cert_checks", OPT_NO_CERT_CHECKS, '-',
"Don't do additional checks on signing certificate"},
{"no_explicit", OPT_NO_EXPLICIT, '-'},
{"trust_other", OPT_TRUST_OTHER, '-',
"Don't verify additional certificates"},
{"no_intern", OPT_NO_INTERN, '-',
"Don't search certificates contained in response for signer"},
{"badsig", OPT_BADSIG, '-'},
{"text", OPT_TEXT, '-', "Print text form of request and response"},
{"req_text", OPT_REQ_TEXT, '-', "Print text form of request"},
{"resp_text", OPT_RESP_TEXT, '-', "Print text form of response"},
{"reqin", OPT_REQIN, 's', "File with the DER-encoded request"},
{"respin", OPT_RESPIN, 's', "File with the DER-encoded response"},
{"signer", OPT_SIGNER, '<', "Certificate to sign OCSP request with"},
{"VAfile", OPT_VAFILE, '<', "Validator certificates file"},
{"sign_other", OPT_SIGN_OTHER, '<',
"Additional certificates to include in signed request"},
{"verify_other", OPT_VERIFY_OTHER, '<',
"Additional certificates to search for signer"},
{"CAfile", OPT_CAFILE, '<', "Trusted certificates file"},
{"CApath", OPT_CAPATH, '<', "Trusted certificates directory"},
{"no-CAfile", OPT_NOCAFILE, '-',
"Do not load the default certificates file"},
{"no-CApath", OPT_NOCAPATH, '-',
"Do not load certificates from the default certificates directory"},
{"validity_period", OPT_VALIDITY_PERIOD, 'u',
"Maximum validity discrepancy in seconds"},
{"status_age", OPT_STATUS_AGE, 'p', "Maximum status age in seconds"},
{"signkey", OPT_SIGNKEY, 's', "Private key to sign OCSP request with"},
{"reqout", OPT_REQOUT, 's', "Output file for the DER-encoded request"},
{"respout", OPT_RESPOUT, 's', "Output file for the DER-encoded response"},
{"path", OPT_PATH, 's', "Path to use in OCSP request"},
{"issuer", OPT_ISSUER, '<', "Issuer certificate"},
{"cert", OPT_CERT, '<', "Certificate to check"},
{"serial", OPT_SERIAL, 's', "Nerial number to check"},
{"index", OPT_INDEX, '<', "Certificate status index file"},
{"CA", OPT_CA, '<', "CA certificate"},
{"nmin", OPT_NMIN, 'p', "Number of minutes before next update"},
{"nrequest", OPT_REQUEST, 'p',
"Number of requests to accept (default unlimited)"},
{"ndays", OPT_NDAYS, 'p', "Number of days before next update"},
{"rsigner", OPT_RSIGNER, '<',
"Sesponder certificate to sign responses with"},
{"rkey", OPT_RKEY, '<', "Responder key to sign responses with"},
{"rother", OPT_ROTHER, '<', "Other certificates to include in response"},
{"rmd", OPT_RMD, 's'},
{"header", OPT_HEADER, 's', "key=value header to add"},
{"", OPT_MD, '-', "Any supported digest"},
OPT_V_OPTIONS,
{NULL}
};
int ocsp_main(int argc, char **argv)
{
BIO *acbio = NULL, *cbio = NULL, *derbio = NULL, *out = NULL;
const EVP_MD *cert_id_md = NULL, *rsign_md = NULL;
CA_DB *rdb = NULL;
EVP_PKEY *key = NULL, *rkey = NULL;
OCSP_BASICRESP *bs = NULL;
OCSP_REQUEST *req = NULL;
OCSP_RESPONSE *resp = NULL;
STACK_OF(CONF_VALUE) *headers = NULL;
STACK_OF(OCSP_CERTID) *ids = NULL;
STACK_OF(OPENSSL_STRING) *reqnames = NULL;
STACK_OF(X509) *sign_other = NULL, *verify_other = NULL, *rother = NULL;
STACK_OF(X509) *issuers = NULL;
X509 *issuer = NULL, *cert = NULL, *rca_cert = NULL;
X509 *signer = NULL, *rsigner = NULL;
X509_STORE *store = NULL;
X509_VERIFY_PARAM *vpm = NULL;
char *CAfile = NULL, *CApath = NULL, *header, *value;
char *host = NULL, *port = NULL, *path = "/", *outfile = NULL;
char *rca_filename = NULL, *reqin = NULL, *respin = NULL;
char *reqout = NULL, *respout = NULL, *ridx_filename = NULL;
char *rsignfile = NULL, *rkeyfile = NULL;
char *sign_certfile = NULL, *verify_certfile = NULL, *rcertfile = NULL;
char *signfile = NULL, *keyfile = NULL;
char *thost = NULL, *tport = NULL, *tpath = NULL;
int noCAfile = 0, noCApath = 0;
int accept_count = -1, add_nonce = 1, noverify = 0, use_ssl = -1;
int vpmtouched = 0, badsig = 0, i, ignore_err = 0, nmin = 0, ndays = -1;
int req_text = 0, resp_text = 0, req_timeout = -1, ret = 1;
long nsec = MAX_VALIDITY_PERIOD, maxage = -1;
unsigned long sign_flags = 0, verify_flags = 0, rflags = 0;
OPTION_CHOICE o;
char *prog;
reqnames = sk_OPENSSL_STRING_new_null();
if (!reqnames)
goto end;
ids = sk_OCSP_CERTID_new_null();
if (!ids)
goto end;
if ((vpm = X509_VERIFY_PARAM_new()) == NULL)
return 1;
prog = opt_init(argc, argv, ocsp_options);
while ((o = opt_next()) != OPT_EOF) {
switch (o) {
case OPT_EOF:
case OPT_ERR:
opthelp:
BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
goto end;
case OPT_HELP:
ret = 0;
opt_help(ocsp_options);
goto end;
case OPT_OUTFILE:
outfile = opt_arg();
break;
case OPT_TIMEOUT:
req_timeout = atoi(opt_arg());
break;
case OPT_URL:
OPENSSL_free(thost);
OPENSSL_free(tport);
OPENSSL_free(tpath);
thost = tport = tpath = NULL;
if (!OCSP_parse_url(opt_arg(), &host, &port, &path, &use_ssl)) {
BIO_printf(bio_err, "%s Error parsing URL\n", prog);
goto end;
}
thost = host;
tport = port;
tpath = path;
break;
case OPT_HOST:
host = opt_arg();
break;
case OPT_PORT:
port = opt_arg();
break;
case OPT_IGNORE_ERR:
ignore_err = 1;
break;
case OPT_NOVERIFY:
noverify = 1;
break;
case OPT_NONCE:
add_nonce = 2;
break;
case OPT_NO_NONCE:
add_nonce = 0;
break;
case OPT_RESP_NO_CERTS:
rflags |= OCSP_NOCERTS;
break;
case OPT_RESP_KEY_ID:
rflags |= OCSP_RESPID_KEY;
break;
case OPT_NO_CERTS:
sign_flags |= OCSP_NOCERTS;
break;
case OPT_NO_SIGNATURE_VERIFY:
verify_flags |= OCSP_NOSIGS;
break;
case OPT_NO_CERT_VERIFY:
verify_flags |= OCSP_NOVERIFY;
break;
case OPT_NO_CHAIN:
verify_flags |= OCSP_NOCHAIN;
break;
case OPT_NO_CERT_CHECKS:
verify_flags |= OCSP_NOCHECKS;
break;
case OPT_NO_EXPLICIT:
verify_flags |= OCSP_NOEXPLICIT;
break;
case OPT_TRUST_OTHER:
verify_flags |= OCSP_TRUSTOTHER;
break;
case OPT_NO_INTERN:
verify_flags |= OCSP_NOINTERN;
break;
case OPT_BADSIG:
badsig = 1;
break;
case OPT_TEXT:
req_text = resp_text = 1;
break;
case OPT_REQ_TEXT:
req_text = 1;
break;
case OPT_RESP_TEXT:
resp_text = 1;
break;
case OPT_REQIN:
reqin = opt_arg();
break;
case OPT_RESPIN:
respin = opt_arg();
break;
case OPT_SIGNER:
signfile = opt_arg();
break;
case OPT_VAFILE:
verify_certfile = opt_arg();
verify_flags |= OCSP_TRUSTOTHER;
break;
case OPT_SIGN_OTHER:
sign_certfile = opt_arg();
break;
case OPT_VERIFY_OTHER:
verify_certfile = opt_arg();
break;
case OPT_CAFILE:
CAfile = opt_arg();
break;
case OPT_CAPATH:
CApath = opt_arg();
break;
case OPT_NOCAFILE:
noCAfile = 1;
break;
case OPT_NOCAPATH:
noCApath = 1;
break;
case OPT_V_CASES:
if (!opt_verify(o, vpm))
goto end;
vpmtouched++;
break;
case OPT_VALIDITY_PERIOD:
opt_long(opt_arg(), &nsec);
break;
case OPT_STATUS_AGE:
opt_long(opt_arg(), &maxage);
break;
case OPT_SIGNKEY:
keyfile = opt_arg();
break;
case OPT_REQOUT:
reqout = opt_arg();
break;
case OPT_RESPOUT:
respout = opt_arg();
break;
case OPT_PATH:
path = opt_arg();
break;
case OPT_ISSUER:
issuer = load_cert(opt_arg(), FORMAT_PEM,
NULL, NULL, "issuer certificate");
if (issuer == NULL)
goto end;
if (issuers == NULL) {
if ((issuers = sk_X509_new_null()) == NULL)
goto end;
}
sk_X509_push(issuers, issuer);
break;
case OPT_CERT:
X509_free(cert);
cert = load_cert(opt_arg(), FORMAT_PEM,
NULL, NULL, "certificate");
if (cert == NULL)
goto end;
if (cert_id_md == NULL)
cert_id_md = EVP_sha1();
if (!add_ocsp_cert(&req, cert, cert_id_md, issuer, ids))
goto end;
if (!sk_OPENSSL_STRING_push(reqnames, opt_arg()))
goto end;
break;
case OPT_SERIAL:
if (cert_id_md == NULL)
cert_id_md = EVP_sha1();
if (!add_ocsp_serial(&req, opt_arg(), cert_id_md, issuer, ids))
goto end;
if (!sk_OPENSSL_STRING_push(reqnames, opt_arg()))
goto end;
break;
case OPT_INDEX:
ridx_filename = opt_arg();
break;
case OPT_CA:
rca_filename = opt_arg();
break;
case OPT_NMIN:
opt_int(opt_arg(), &nmin);
if (ndays == -1)
ndays = 0;
break;
case OPT_REQUEST:
opt_int(opt_arg(), &accept_count);
break;
case OPT_NDAYS:
ndays = atoi(opt_arg());
break;
case OPT_RSIGNER:
rsignfile = opt_arg();
break;
case OPT_RKEY:
rkeyfile = opt_arg();
break;
case OPT_ROTHER:
rcertfile = opt_arg();
break;
case OPT_RMD:
if (!opt_md(opt_arg(), &rsign_md))
goto end;
break;
case OPT_HEADER:
header = opt_arg();
value = strchr(header, '=');
if (value == NULL) {
BIO_printf(bio_err, "Missing = in header key=value\n");
goto opthelp;
}
*value++ = '\0';
if (!X509V3_add_value(header, value, &headers))
goto end;
break;
case OPT_MD:
if (cert_id_md != NULL) {
BIO_printf(bio_err,
"%s: Digest must be before -cert or -serial\n",
prog);
goto opthelp;
}
if (!opt_md(opt_unknown(), &cert_id_md))
goto opthelp;
break;
}
}
argc = opt_num_rest();
argv = opt_rest();
/* Have we anything to do? */
if (!req && !reqin && !respin && !(port && ridx_filename))
goto opthelp;
out = bio_open_default(outfile, 'w', FORMAT_TEXT);
if (out == NULL)
goto end;
if (!req && (add_nonce != 2))
add_nonce = 0;
if (!req && reqin) {
derbio = bio_open_default(reqin, 'r', FORMAT_ASN1);
if (derbio == NULL)
goto end;
req = d2i_OCSP_REQUEST_bio(derbio, NULL);
BIO_free(derbio);
if (!req) {
BIO_printf(bio_err, "Error reading OCSP request\n");
goto end;
}
}
if (!req && port) {
acbio = init_responder(port);
if (!acbio)
goto end;
}
if (rsignfile && !rdb) {
if (!rkeyfile)
rkeyfile = rsignfile;
rsigner = load_cert(rsignfile, FORMAT_PEM,
NULL, NULL, "responder certificate");
if (!rsigner) {
BIO_printf(bio_err, "Error loading responder certificate\n");
goto end;
}
rca_cert = load_cert(rca_filename, FORMAT_PEM,
NULL, NULL, "CA certificate");
if (rcertfile) {
rother = load_certs(rcertfile, FORMAT_PEM,
NULL, NULL, "responder other certificates");
if (!rother)
goto end;
}
rkey = load_key(rkeyfile, FORMAT_PEM, 0, NULL, NULL,
"responder private key");
if (!rkey)
goto end;
}
if (acbio)
BIO_printf(bio_err, "Waiting for OCSP client connections...\n");
redo_accept:
if (acbio) {
if (!do_responder(&req, &cbio, acbio, port))
goto end;
if (!req) {
resp =
OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST,
NULL);
send_ocsp_response(cbio, resp);
goto done_resp;
}
}
if (!req && (signfile || reqout || host || add_nonce || ridx_filename)) {
BIO_printf(bio_err, "Need an OCSP request for this operation!\n");
goto end;
}
if (req && add_nonce)
OCSP_request_add1_nonce(req, NULL, -1);
if (signfile) {
if (!keyfile)
keyfile = signfile;
signer = load_cert(signfile, FORMAT_PEM,
NULL, NULL, "signer certificate");
if (!signer) {
BIO_printf(bio_err, "Error loading signer certificate\n");
goto end;
}
if (sign_certfile) {
sign_other = load_certs(sign_certfile, FORMAT_PEM,
NULL, NULL, "signer certificates");
if (!sign_other)
goto end;
}
key = load_key(keyfile, FORMAT_PEM, 0, NULL, NULL,
"signer private key");
if (!key)
goto end;
if (!OCSP_request_sign
(req, signer, key, NULL, sign_other, sign_flags)) {
BIO_printf(bio_err, "Error signing OCSP request\n");
goto end;
}
}
if (req_text && req)
OCSP_REQUEST_print(out, req, 0);
if (reqout) {
derbio = bio_open_default(reqout, 'w', FORMAT_ASN1);
if (derbio == NULL)
goto end;
i2d_OCSP_REQUEST_bio(derbio, req);
BIO_free(derbio);
}
if (ridx_filename && (!rkey || !rsigner || !rca_cert)) {
BIO_printf(bio_err,
"Need a responder certificate, key and CA for this operation!\n");
goto end;
}
if (ridx_filename && !rdb) {
rdb = load_index(ridx_filename, NULL);
if (!rdb)
goto end;
if (!index_index(rdb))
goto end;
}
if (rdb) {
make_ocsp_response(&resp, req, rdb, rca_cert, rsigner, rkey,
rsign_md, rother, rflags, nmin, ndays, badsig);
if (cbio)
send_ocsp_response(cbio, resp);
} else if (host) {
# ifndef OPENSSL_NO_SOCK
resp = process_responder(req, host, path,
port, use_ssl, headers, req_timeout);
if (!resp)
goto end;
# else
BIO_printf(bio_err,
"Error creating connect BIO - sockets not supported.\n");
goto end;
# endif
} else if (respin) {
derbio = bio_open_default(respin, 'r', FORMAT_ASN1);
if (derbio == NULL)
goto end;
resp = d2i_OCSP_RESPONSE_bio(derbio, NULL);
BIO_free(derbio);
if (!resp) {
BIO_printf(bio_err, "Error reading OCSP response\n");
goto end;
}
} else {
ret = 0;
goto end;
}
done_resp:
if (respout) {
derbio = bio_open_default(respout, 'w', FORMAT_ASN1);
if (derbio == NULL)
goto end;
i2d_OCSP_RESPONSE_bio(derbio, resp);
BIO_free(derbio);
}
i = OCSP_response_status(resp);
if (i != OCSP_RESPONSE_STATUS_SUCCESSFUL) {
BIO_printf(out, "Responder Error: %s (%d)\n",
OCSP_response_status_str(i), i);
if (ignore_err)
goto redo_accept;
ret = 0;
goto end;
}
if (resp_text)
OCSP_RESPONSE_print(out, resp, 0);
/* If running as responder don't verify our own response */
if (cbio) {
/* If not unlimited, see if we took all we should. */
if (accept_count != -1 && --accept_count <= 0) {
ret = 0;
goto end;
}
BIO_free_all(cbio);
cbio = NULL;
OCSP_REQUEST_free(req);
req = NULL;
OCSP_RESPONSE_free(resp);
resp = NULL;
goto redo_accept;
}
if (ridx_filename) {
ret = 0;
goto end;
}
if (!store) {
store = setup_verify(CAfile, CApath, noCAfile, noCApath);
if (!store)
goto end;
}
if (vpmtouched)
X509_STORE_set1_param(store, vpm);
if (verify_certfile) {
verify_other = load_certs(verify_certfile, FORMAT_PEM,
NULL, NULL, "validator certificate");
if (!verify_other)
goto end;
}
bs = OCSP_response_get1_basic(resp);
if (!bs) {
BIO_printf(bio_err, "Error parsing response\n");
goto end;
}
ret = 0;
if (!noverify) {
if (req && ((i = OCSP_check_nonce(req, bs)) <= 0)) {
if (i == -1)
BIO_printf(bio_err, "WARNING: no nonce in response\n");
else {
BIO_printf(bio_err, "Nonce Verify error\n");
ret = 1;
goto end;
}
}
i = OCSP_basic_verify(bs, verify_other, store, verify_flags);
if (i <= 0 && issuers) {
i = OCSP_basic_verify(bs, issuers, store, OCSP_TRUSTOTHER);
if (i > 0)
ERR_clear_error();
}
if (i <= 0) {
BIO_printf(bio_err, "Response Verify Failure\n");
ERR_print_errors(bio_err);
ret = 1;
} else
BIO_printf(bio_err, "Response verify OK\n");
}
print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage);
end:
ERR_print_errors(bio_err);
X509_free(signer);
X509_STORE_free(store);
X509_VERIFY_PARAM_free(vpm);
EVP_PKEY_free(key);
EVP_PKEY_free(rkey);
X509_free(cert);
sk_X509_pop_free(issuers, X509_free);
X509_free(rsigner);
X509_free(rca_cert);
free_index(rdb);
BIO_free_all(cbio);
BIO_free_all(acbio);
BIO_free(out);
OCSP_REQUEST_free(req);
OCSP_RESPONSE_free(resp);
OCSP_BASICRESP_free(bs);
sk_OPENSSL_STRING_free(reqnames);
sk_OCSP_CERTID_free(ids);
sk_X509_pop_free(sign_other, X509_free);
sk_X509_pop_free(verify_other, X509_free);
sk_CONF_VALUE_pop_free(headers, X509V3_conf_free);
OPENSSL_free(thost);
OPENSSL_free(tport);
OPENSSL_free(tpath);
return (ret);
}
static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert,
const EVP_MD *cert_id_md, X509 *issuer,
STACK_OF(OCSP_CERTID) *ids)
{
OCSP_CERTID *id;
if (!issuer) {
BIO_printf(bio_err, "No issuer certificate specified\n");
return 0;
}
if (*req == NULL)
*req = OCSP_REQUEST_new();
if (*req == NULL)
goto err;
id = OCSP_cert_to_id(cert_id_md, cert, issuer);
if (!id || !sk_OCSP_CERTID_push(ids, id))
goto err;
if (!OCSP_request_add0_id(*req, id))
goto err;
return 1;
err:
BIO_printf(bio_err, "Error Creating OCSP request\n");
return 0;
}
static int add_ocsp_serial(OCSP_REQUEST **req, char *serial,
const EVP_MD *cert_id_md, X509 *issuer,
STACK_OF(OCSP_CERTID) *ids)
{
OCSP_CERTID *id;
X509_NAME *iname;
ASN1_BIT_STRING *ikey;
ASN1_INTEGER *sno;
if (!issuer) {
BIO_printf(bio_err, "No issuer certificate specified\n");
return 0;
}
if (*req == NULL)
*req = OCSP_REQUEST_new();
if (*req == NULL)
goto err;
iname = X509_get_subject_name(issuer);
ikey = X509_get0_pubkey_bitstr(issuer);
sno = s2i_ASN1_INTEGER(NULL, serial);
if (!sno) {
BIO_printf(bio_err, "Error converting serial number %s\n", serial);
return 0;
}
id = OCSP_cert_id_new(cert_id_md, iname, ikey, sno);
ASN1_INTEGER_free(sno);
if (id == NULL || !sk_OCSP_CERTID_push(ids, id))
goto err;
if (!OCSP_request_add0_id(*req, id))
goto err;
return 1;
err:
BIO_printf(bio_err, "Error Creating OCSP request\n");
return 0;
}
static void print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
STACK_OF(OPENSSL_STRING) *names,
STACK_OF(OCSP_CERTID) *ids, long nsec,
long maxage)
{
OCSP_CERTID *id;
char *name;
int i, status, reason;
ASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd;
if (!bs || !req || !sk_OPENSSL_STRING_num(names)
|| !sk_OCSP_CERTID_num(ids))
return;
for (i = 0; i < sk_OCSP_CERTID_num(ids); i++) {
id = sk_OCSP_CERTID_value(ids, i);
name = sk_OPENSSL_STRING_value(names, i);
BIO_printf(out, "%s: ", name);
if (!OCSP_resp_find_status(bs, id, &status, &reason,
&rev, &thisupd, &nextupd)) {
BIO_puts(out, "ERROR: No Status found.\n");
continue;
}
/*
* Check validity: if invalid write to output BIO so we know which
* response this refers to.
*/
if (!OCSP_check_validity(thisupd, nextupd, nsec, maxage)) {
BIO_puts(out, "WARNING: Status times invalid.\n");
ERR_print_errors(out);
}
BIO_printf(out, "%s\n", OCSP_cert_status_str(status));
BIO_puts(out, "\tThis Update: ");
ASN1_GENERALIZEDTIME_print(out, thisupd);
BIO_puts(out, "\n");
if (nextupd) {
BIO_puts(out, "\tNext Update: ");
ASN1_GENERALIZEDTIME_print(out, nextupd);
BIO_puts(out, "\n");
}
if (status != V_OCSP_CERTSTATUS_REVOKED)
continue;
if (reason != -1)
BIO_printf(out, "\tReason: %s\n", OCSP_crl_reason_str(reason));
BIO_puts(out, "\tRevocation Time: ");
ASN1_GENERALIZEDTIME_print(out, rev);
BIO_puts(out, "\n");
}
}
static void make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req,
CA_DB *db, X509 *ca, X509 *rcert,
EVP_PKEY *rkey, const EVP_MD *rmd,
STACK_OF(X509) *rother, unsigned long flags,
int nmin, int ndays, int badsig)
{
ASN1_TIME *thisupd = NULL, *nextupd = NULL;
OCSP_CERTID *cid, *ca_id = NULL;
OCSP_BASICRESP *bs = NULL;
int i, id_count;
id_count = OCSP_request_onereq_count(req);
if (id_count <= 0) {
*resp =
OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
goto end;
}
bs = OCSP_BASICRESP_new();
thisupd = X509_gmtime_adj(NULL, 0);
if (ndays != -1)
nextupd = X509_time_adj_ex(NULL, ndays, nmin * 60, NULL);
/* Examine each certificate id in the request */
for (i = 0; i < id_count; i++) {
OCSP_ONEREQ *one;
ASN1_INTEGER *serial;
char **inf;
ASN1_OBJECT *cert_id_md_oid;
const EVP_MD *cert_id_md;
one = OCSP_request_onereq_get0(req, i);
cid = OCSP_onereq_get0_id(one);
OCSP_id_get0_info(NULL, &cert_id_md_oid, NULL, NULL, cid);
cert_id_md = EVP_get_digestbyobj(cert_id_md_oid);
if (!cert_id_md) {
*resp = OCSP_response_create(OCSP_RESPONSE_STATUS_INTERNALERROR,
NULL);
goto end;
}
OCSP_CERTID_free(ca_id);
ca_id = OCSP_cert_to_id(cert_id_md, NULL, ca);
/* Is this request about our CA? */
if (OCSP_id_issuer_cmp(ca_id, cid)) {
OCSP_basic_add1_status(bs, cid,
V_OCSP_CERTSTATUS_UNKNOWN,
0, NULL, thisupd, nextupd);
continue;
}
OCSP_id_get0_info(NULL, NULL, NULL, &serial, cid);
inf = lookup_serial(db, serial);
if (!inf)
OCSP_basic_add1_status(bs, cid,
V_OCSP_CERTSTATUS_UNKNOWN,
0, NULL, thisupd, nextupd);
else if (inf[DB_type][0] == DB_TYPE_VAL)
OCSP_basic_add1_status(bs, cid,
V_OCSP_CERTSTATUS_GOOD,
0, NULL, thisupd, nextupd);
else if (inf[DB_type][0] == DB_TYPE_REV) {
ASN1_OBJECT *inst = NULL;
ASN1_TIME *revtm = NULL;
ASN1_GENERALIZEDTIME *invtm = NULL;
OCSP_SINGLERESP *single;
int reason = -1;
unpack_revinfo(&revtm, &reason, &inst, &invtm, inf[DB_rev_date]);
single = OCSP_basic_add1_status(bs, cid,
V_OCSP_CERTSTATUS_REVOKED,
reason, revtm, thisupd, nextupd);
if (invtm)
OCSP_SINGLERESP_add1_ext_i2d(single, NID_invalidity_date,
invtm, 0, 0);
else if (inst)
OCSP_SINGLERESP_add1_ext_i2d(single,
NID_hold_instruction_code, inst,
0, 0);
ASN1_OBJECT_free(inst);
ASN1_TIME_free(revtm);
ASN1_GENERALIZEDTIME_free(invtm);
}
}
OCSP_copy_nonce(bs, req);
OCSP_basic_sign(bs, rcert, rkey, rmd, rother, flags);
if (badsig) {
ASN1_OCTET_STRING *sig = OCSP_resp_get0_signature(bs);
unsigned char *sigptr = ASN1_STRING_data(sig);
sigptr[ASN1_STRING_length(sig) - 1] ^= 0x1;
}
*resp = OCSP_response_create(OCSP_RESPONSE_STATUS_SUCCESSFUL, bs);
end:
ASN1_TIME_free(thisupd);
ASN1_TIME_free(nextupd);
OCSP_CERTID_free(ca_id);
OCSP_BASICRESP_free(bs);
}
static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser)
{