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openssl/apps/ocsp.c
Richard Levitte 30b4c2724e Extend all the loading functions to take an engine pointer, a pass 
string (some engines may have certificates protected by a PIN!) and
a description to put into error messages.

Also, have our own password callback that we can send both a password
and some prompt info to.  The default password callback in EVP assumes
that the passed parameter is a password, which isn't always the right
thing, and the ENGINE code (at least the nCipher one) makes other
assumptions...

Also, in spite of having the functions to load keys, some utilities
did the loading all by themselves...  That's changed too.
2001-05-30 15:29:28 +00:00

765 lines
19 KiB
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/* ocsp.c */
/* Written by Dr Stephen N Henson (shenson@bigfoot.com) 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
* licensing@OpenSSL.org.
*
* 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
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include <string.h>
#include <openssl/pem.h>
#include <openssl/ocsp.h>
#include <openssl/err.h>
#include <openssl/ssl.h>
#include "apps.h"
/* Maximum leeway in validity period: default 5 minutes */
#define MAX_VALIDITY_PERIOD (5 * 60)
static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, X509 *issuer,
STACK_OF(OCSP_CERTID) *ids);
static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, X509 *issuer,
STACK_OF(OCSP_CERTID) *ids);
static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
STACK *names, STACK_OF(OCSP_CERTID) *ids,
long nsec, long maxage);
#undef PROG
#define PROG ocsp_main
int MAIN(int, char **);
int MAIN(int argc, char **argv)
{
ENGINE *e = NULL;
char **args;
char *host = NULL, *port = NULL, *path = "/";
char *reqin = NULL, *respin = NULL;
char *reqout = NULL, *respout = NULL;
char *signfile = NULL, *keyfile = NULL;
char *outfile = NULL;
int add_nonce = 1, noverify = 0, use_ssl = -1;
OCSP_REQUEST *req = NULL;
OCSP_RESPONSE *resp = NULL;
OCSP_BASICRESP *bs = NULL;
X509 *issuer = NULL, *cert = NULL;
X509 *signer = NULL;
EVP_PKEY *key = NULL;
BIO *cbio = NULL, *derbio = NULL;
BIO *out = NULL;
int req_text = 0, resp_text = 0;
long nsec = MAX_VALIDITY_PERIOD, maxage = -1;
char *CAfile = NULL, *CApath = NULL;
X509_STORE *store = NULL;
SSL_CTX *ctx = NULL;
STACK_OF(X509) *sign_other = NULL, *verify_other = NULL;
char *sign_certfile = NULL, *verify_certfile = NULL;
unsigned long sign_flags = 0, verify_flags = 0;
int ret = 1;
int badarg = 0;
int i;
STACK *reqnames = NULL;
STACK_OF(OCSP_CERTID) *ids = NULL;
if (bio_err == NULL) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
SSL_load_error_strings();
args = argv + 1;
reqnames = sk_new_null();
ids = sk_OCSP_CERTID_new_null();
while (!badarg && *args && *args[0] == '-')
{
if (!strcmp(*args, "-out"))
{
if (args[1])
{
args++;
outfile = *args;
}
else badarg = 1;
}
else if (!strcmp(*args, "-url"))
{
if (args[1])
{
args++;
if (!OCSP_parse_url(*args, &host, &port, &path, &use_ssl))
{
BIO_printf(bio_err, "Error parsing URL\n");
badarg = 1;
}
}
else badarg = 1;
}
else if (!strcmp(*args, "-host"))
{
if (args[1])
{
args++;
host = *args;
}
else badarg = 1;
}
else if (!strcmp(*args, "-noverify"))
noverify = 1;
else if (!strcmp(*args, "-nonce"))
add_nonce = 2;
else if (!strcmp(*args, "-no_nonce"))
add_nonce = 0;
else if (!strcmp(*args, "-no_certs"))
sign_flags |= OCSP_NOCERTS;
else if (!strcmp(*args, "-no_signature_verify"))
verify_flags |= OCSP_NOSIGS;
else if (!strcmp(*args, "-no_cert_verify"))
verify_flags |= OCSP_NOVERIFY;
else if (!strcmp(*args, "-no_chain"))
verify_flags |= OCSP_NOCHAIN;
else if (!strcmp(*args, "-no_cert_checks"))
verify_flags |= OCSP_NOCHECKS;
else if (!strcmp(*args, "-no_explicit"))
verify_flags |= OCSP_NOEXPLICIT;
else if (!strcmp(*args, "-trust_other"))
verify_flags |= OCSP_TRUSTOTHER;
else if (!strcmp(*args, "-no_intern"))
verify_flags |= OCSP_NOINTERN;
else if (!strcmp(*args, "-text"))
{
req_text = 1;
resp_text = 1;
}
else if (!strcmp(*args, "-req_text"))
req_text = 1;
else if (!strcmp(*args, "-resp_text"))
resp_text = 1;
else if (!strcmp(*args, "-reqin"))
{
if (args[1])
{
args++;
reqin = *args;
}
else badarg = 1;
}
else if (!strcmp(*args, "-respin"))
{
if (args[1])
{
args++;
respin = *args;
}
else badarg = 1;
}
else if (!strcmp(*args, "-signer"))
{
if (args[1])
{
args++;
signfile = *args;
}
else badarg = 1;
}
else if (!strcmp (*args, "-VAfile"))
{
if (args[1])
{
args++;
verify_certfile = *args;
verify_flags |= OCSP_TRUSTOTHER;
}
else badarg = 1;
}
else if (!strcmp(*args, "-sign_other"))
{
if (args[1])
{
args++;
sign_certfile = *args;
}
else badarg = 1;
}
else if (!strcmp(*args, "-verify_other"))
{
if (args[1])
{
args++;
verify_certfile = *args;
}
else badarg = 1;
}
else if (!strcmp (*args, "-CAfile"))
{
if (args[1])
{
args++;
CAfile = *args;
}
else badarg = 1;
}
else if (!strcmp (*args, "-CApath"))
{
if (args[1])
{
args++;
CApath = *args;
}
else badarg = 1;
}
else if (!strcmp (*args, "-validity_period"))
{
if (args[1])
{
args++;
nsec = atol(*args);
if (nsec < 0)
{
BIO_printf(bio_err,
"Illegal validity period %s\n",
*args);
badarg = 1;
}
}
else badarg = 1;
}
else if (!strcmp (*args, "-status_age"))
{
if (args[1])
{
args++;
maxage = atol(*args);
if (maxage < 0)
{
BIO_printf(bio_err,
"Illegal validity age %s\n",
*args);
badarg = 1;
}
}
else badarg = 1;
}
else if (!strcmp(*args, "-signkey"))
{
if (args[1])
{
args++;
keyfile = *args;
}
else badarg = 1;
}
else if (!strcmp(*args, "-reqout"))
{
if (args[1])
{
args++;
reqout = *args;
}
else badarg = 1;
}
else if (!strcmp(*args, "-respout"))
{
if (args[1])
{
args++;
respout = *args;
}
else badarg = 1;
}
else if (!strcmp(*args, "-path"))
{
if (args[1])
{
args++;
path = *args;
}
else badarg = 1;
}
else if (!strcmp(*args, "-issuer"))
{
if (args[1])
{
args++;
X509_free(issuer);
issuer = load_cert(bio_err, *args, FORMAT_PEM,
NULL, e, "issuer certificate");
if(!issuer) goto end;
}
else badarg = 1;
}
else if (!strcmp (*args, "-cert"))
{
if (args[1])
{
args++;
X509_free(cert);
cert = load_cert(bio_err, *args, FORMAT_PEM,
NULL, e, "certificate");
if(!cert) goto end;
if(!add_ocsp_cert(&req, cert, issuer, ids))
goto end;
if(!sk_push(reqnames, *args))
goto end;
}
else badarg = 1;
}
else if (!strcmp(*args, "-serial"))
{
if (args[1])
{
args++;
if(!add_ocsp_serial(&req, *args, issuer, ids))
goto end;
if(!sk_push(reqnames, *args))
goto end;
}
else badarg = 1;
}
else badarg = 1;
args++;
}
/* Have we anything to do? */
if (!req && !reqin && !respin) badarg = 1;
if (badarg)
{
BIO_printf (bio_err, "OCSP utility\n");
BIO_printf (bio_err, "Usage ocsp [options]\n");
BIO_printf (bio_err, "where options are\n");
BIO_printf (bio_err, "-out file output filename\n");
BIO_printf (bio_err, "-issuer file issuer certificate\n");
BIO_printf (bio_err, "-cert file certificate to check\n");
BIO_printf (bio_err, "-serial n serial number to check\n");
BIO_printf (bio_err, "-signer file certificate to sign OCSP request with\n");
BIO_printf (bio_err, "-signkey file private key to sign OCSP request with\n");
BIO_printf (bio_err, "-sign_certs file additional certificates to include in signed request\n");
BIO_printf (bio_err, "-no_certs don't include any certificates in signed request\n");
BIO_printf (bio_err, "-req_text print text form of request\n");
BIO_printf (bio_err, "-resp_text print text form of response\n");
BIO_printf (bio_err, "-text print text form of request and response\n");
BIO_printf (bio_err, "-reqout file write DER encoded OCSP request to \"file\"\n");
BIO_printf (bio_err, "-respout file write DER encoded OCSP reponse to \"file\"\n");
BIO_printf (bio_err, "-reqin file read DER encoded OCSP request from \"file\"\n");
BIO_printf (bio_err, "-respin file read DER encoded OCSP reponse from \"file\"\n");
BIO_printf (bio_err, "-nonce add OCSP nonce to request\n");
BIO_printf (bio_err, "-no_nonce don't add OCSP nonce to request\n");
BIO_printf (bio_err, "-url URL OCSP responder URL\n");
BIO_printf (bio_err, "-host host:n send OCSP request to host on port n\n");
BIO_printf (bio_err, "-path path to use in OCSP request\n");
BIO_printf (bio_err, "-CApath dir trusted certificates directory\n");
BIO_printf (bio_err, "-CAfile file trusted certificates file\n");
BIO_printf (bio_err, "-VAfile file validator certificates file\n");
BIO_printf (bio_err, "-validity_period n maximum validity discrepancy in seconds\n");
BIO_printf (bio_err, "-status_age n maximum status age in seconds\n");
BIO_printf (bio_err, "-noverify don't verify response at all\n");
BIO_printf (bio_err, "-verify_certs file additional certificates to search for signer\n");
BIO_printf (bio_err, "-trust_other don't verify additional certificates\n");
BIO_printf (bio_err, "-no_intern don't search certificates contained in response for signer\n");
BIO_printf (bio_err, "-no_sig_verify don't check signature on response\n");
BIO_printf (bio_err, "-no_cert_verify don't check signing certificate\n");
BIO_printf (bio_err, "-no_chain don't chain verify response\n");
BIO_printf (bio_err, "-no_cert_checks don't do additional checks on signing certificate\n");
goto end;
}
if(outfile) out = BIO_new_file(outfile, "w");
else out = BIO_new_fp(stdout, BIO_NOCLOSE);
if(!out)
{
BIO_printf(bio_err, "Error opening output file\n");
goto end;
}
if (!req && (add_nonce != 2)) add_nonce = 0;
if (!req && reqin)
{
derbio = BIO_new_file(reqin, "rb");
if (!derbio)
{
BIO_printf(bio_err, "Error Opening OCSP request file\n");
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 && (signfile || reqout || host || add_nonce))
{
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(bio_err, signfile, FORMAT_PEM,
NULL, e, "signer certificate");
if (!signer)
{
BIO_printf(bio_err, "Error loading signer certificate\n");
goto end;
}
if (sign_certfile)
{
sign_other = load_certs(bio_err, sign_certfile, FORMAT_PEM,
NULL, e, "signer certificates");
if (!sign_other) goto end;
}
key = load_key(bio_err, keyfile, FORMAT_PEM, NULL, NULL,
"signer private key");
if (!key)
{
#if 0 /* An appropriate message has already been printed */
BIO_printf(bio_err, "Error loading signer private key\n");
#endif
goto end;
}
if (!OCSP_request_sign(req, signer, key, EVP_sha1(), sign_other, sign_flags))
{
BIO_printf(bio_err, "Error signing OCSP request\n");
goto end;
}
}
if (reqout)
{
derbio = BIO_new_file(reqout, "wb");
if (!derbio)
{
BIO_printf(bio_err, "Error opening file %s\n", reqout);
goto end;
}
i2d_OCSP_REQUEST_bio(derbio, req);
BIO_free(derbio);
}
if (req_text && req) OCSP_REQUEST_print(out, req, 0);
if (host)
{
cbio = BIO_new_connect(host);
if (!cbio)
{
BIO_printf(bio_err, "Error creating connect BIO\n");
goto end;
}
if (port) BIO_set_conn_port(cbio, port);
if (use_ssl == 1)
{
BIO *sbio;
ctx = SSL_CTX_new(SSLv23_client_method());
SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY);
sbio = BIO_new_ssl(ctx, 1);
cbio = BIO_push(sbio, cbio);
}
if (BIO_do_connect(cbio) <= 0)
{
BIO_printf(bio_err, "Error connecting BIO\n");
goto end;
}
resp = OCSP_sendreq_bio(cbio, path, req);
BIO_free_all(cbio);
cbio = NULL;
if (!resp)
{
BIO_printf(bio_err, "Error querying OCSP responsder\n");
goto end;
}
}
else if (respin)
{
derbio = BIO_new_file(respin, "rb");
if (!derbio)
{
BIO_printf(bio_err, "Error Opening OCSP response file\n");
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;
}
if (respout)
{
derbio = BIO_new_file(respout, "wb");
if(!derbio)
{
BIO_printf(bio_err, "Error opening file %s\n", respout);
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 (%ld)\n",
OCSP_response_status_str(i), i);
ret = 0;
goto end;
}
if (resp_text) OCSP_RESPONSE_print(out, resp, 0);
store = setup_verify(bio_err, CAfile, CApath);
if(!store) goto end;
if (verify_certfile)
{
verify_other = load_certs(bio_err, verify_certfile, FORMAT_PEM,
NULL, e, "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;
}
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");
goto end;
}
}
i = OCSP_basic_verify(bs, verify_other, store, verify_flags);
if (i < 0) i = OCSP_basic_verify(bs, NULL, store, 0);
if(i <= 0)
{
BIO_printf(bio_err, "Response Verify Failure\n", i);
ERR_print_errors(bio_err);
}
else
BIO_printf(bio_err, "Response verify OK\n");
}
if (!print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage))
goto end;
ret = 0;
end:
ERR_print_errors(bio_err);
X509_free(signer);
X509_STORE_free(store);
EVP_PKEY_free(key);
X509_free(issuer);
X509_free(cert);
BIO_free_all(cbio);
BIO_free(out);
OCSP_REQUEST_free(req);
OCSP_RESPONSE_free(resp);
OCSP_BASICRESP_free(bs);
sk_free(reqnames);
sk_OCSP_CERTID_free(ids);
sk_X509_pop_free(sign_other, X509_free);
sk_X509_pop_free(verify_other, X509_free);
if (use_ssl != -1)
{
OPENSSL_free(host);
OPENSSL_free(port);
OPENSSL_free(path);
SSL_CTX_free(ctx);
}
EXIT(ret);
}
static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, 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) *req = OCSP_REQUEST_new();
if(!*req) goto err;
id = OCSP_cert_to_id(NULL, 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, 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) *req = OCSP_REQUEST_new();
if(!*req) 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(EVP_sha1(), iname, ikey, sno);
ASN1_INTEGER_free(sno);
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 print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
STACK *names, STACK_OF(OCSP_CERTID) *ids,
long nsec, long maxage)
{
OCSP_CERTID *id;
char *name;
int i;
int status, reason;
ASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd;
if (!bs || !req || !sk_num(names) || !sk_OCSP_CERTID_num(ids))
return 1;
for (i = 0; i < sk_OCSP_CERTID_num(ids); i++)
{
id = sk_OCSP_CERTID_value(ids, i);
name = sk_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");
}
return 1;
}
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