/*
* This function sends a OCSP request to a defined OCSP responder
* and checks the OCSP response for correctness.
*/
static int ocsp_check(X509_STORE *store, X509 *issuer_cert, X509 *client_cert,
EAP_TLS_CONF *conf)
{
OCSP_CERTID *certid;
OCSP_REQUEST *req;
OCSP_RESPONSE *resp;
OCSP_BASICRESP *bresp = NULL;
char *host = NULL;
char *port = NULL;
char *path = NULL;
int use_ssl = -1;
BIO *cbio;
int ocsp_ok;
int status;
/*
* Create OCSP Request
*/
certid = OCSP_cert_to_id(NULL, client_cert, issuer_cert);
req = OCSP_REQUEST_new();
OCSP_request_add0_id(req, certid);
OCSP_request_add1_nonce(req, NULL, 8);
/*
* Send OCSP Request and get OCSP Response
*/
/* Get OCSP responder URL */
if(conf->ocsp_override_url) {
OCSP_parse_url(conf->ocsp_url, &host, &port, &path, &use_ssl);
}
else {
ocsp_parse_cert_url(client_cert, &host, &port, &path, &use_ssl);
}
DEBUG2("[ocsp] --> Responder URL = http://%s:%s%s", host, port, path);
/* Setup BIO socket to OCSP responder */
cbio = BIO_new_connect(host);
BIO_set_conn_port(cbio, port);
BIO_do_connect(cbio);
/* Send OCSP request and wait for response */
resp = OCSP_sendreq_bio(cbio, path, req);
if(resp==0) {
radlog(L_ERR, "Error: Couldn't get OCSP response");
ocsp_ok = 0;
goto ocsp_end;
}
/* Verify OCSP response */
status = OCSP_response_status(resp);
if(status != OCSP_RESPONSE_STATUS_SUCCESSFUL) {
radlog(L_ERR, "Error: OCSP response status: %s", OCSP_response_status_str(status));
ocsp_ok = 0;
goto ocsp_end;
}
bresp = OCSP_response_get1_basic(resp);
if(OCSP_check_nonce(req, bresp)!=1) {
radlog(L_ERR, "Error: OCSP response has wrong nonce value");
ocsp_ok = 0;
goto ocsp_end;
}
if(OCSP_basic_verify(bresp, NULL, store, 0)!=1){
radlog(L_ERR, "Error: Couldn't verify OCSP basic response");
ocsp_ok = 0;
goto ocsp_end;
}
ocsp_ok = 1;
ocsp_end:
/* Free OCSP Stuff */
OCSP_REQUEST_free(req);
OCSP_RESPONSE_free(resp);
free(host);
free(port);
free(path);
BIO_free_all(cbio);
OCSP_BASICRESP_free(bresp);
if (ocsp_ok) {
DEBUG2("[ocsp] --> Certificate is valid!");
} else {
DEBUG2("[ocsp] --> Certificate has been expired/revoked!");
}
return ocsp_ok;
}
int myproxy_ocsp_verify(X509 *cert, X509 *issuer) {
BIO *bio = 0;
int rc, reason, ssl, status;
char *host = 0, *path = 0, *port = 0, *certdir = 0;
char *aiaocspurl = 0, *chosenurl = 0;
SSL_CTX *ctx = 0;
X509_LOOKUP *lookup = NULL;
X509_STORE *store = 0;
OCSP_CERTID *id;
OCSP_REQUEST *req = 0;
OCSP_RESPONSE *resp = 0;
OCSP_BASICRESP *basic = 0;
myproxy_ocspresult_t result;
ASN1_GENERALIZEDTIME *producedAt, *thisUpdate, *nextUpdate;
globus_result_t res;
if (!policy && !responder_url) {
result = MYPROXY_OCSPRESULT_ERROR_NOTCONFIGURED;
goto end;
}
result = MYPROXY_OCSPRESULT_ERROR_UNKNOWN;
if (policy && strstr(policy, "aia")) {
aiaocspurl = myproxy_get_aia_ocsp_uri(cert);
}
if (!responder_url && !aiaocspurl) {
result = MYPROXY_OCSPRESULT_ERROR_NOTCONFIGURED;
goto end;
}
chosenurl = aiaocspurl ? aiaocspurl : responder_url;
if (!OCSP_parse_url(chosenurl, &host, &port, &path, &ssl)) {
result = MYPROXY_OCSPRESULT_ERROR_BADOCSPADDRESS;
goto end;
}
myproxy_log("querying OCSP responder at %s", chosenurl);
if (!(req = OCSP_REQUEST_new())) {
result = MYPROXY_OCSPRESULT_ERROR_OUTOFMEMORY;
goto end;
}
id = OCSP_cert_to_id(0, cert, issuer);
if (!id || !OCSP_request_add0_id(req, id)) goto end;
if (usenonce) OCSP_request_add1_nonce(req, 0, -1);
/* sign the request */
if (sign_cert && sign_key &&
!OCSP_request_sign(req, sign_cert, sign_key, EVP_sha1(), 0, 0)) {
result = MYPROXY_OCSPRESULT_ERROR_SIGNFAILURE;
goto end;
}
/* setup GSI context */
store=X509_STORE_new();
lookup = X509_STORE_add_lookup(store, X509_LOOKUP_hash_dir());
if (lookup == NULL) {
result = MYPROXY_OCSPRESULT_ERROR_OUTOFMEMORY;
goto end;
}
res = GLOBUS_GSI_SYSCONFIG_GET_CERT_DIR(&certdir);
if (res != GLOBUS_SUCCESS) {
verror_put_string("failed to find GSI CA cert directory");
globus_error_to_verror(res);
goto end;
}
X509_LOOKUP_add_dir(lookup, certdir, X509_FILETYPE_PEM);
ctx = SSL_CTX_new(SSLv23_client_method());
if (ctx == NULL) {
result = MYPROXY_OCSPRESULT_ERROR_OUTOFMEMORY;
goto end;
}
SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2);
SSL_CTX_set_cert_store(ctx, store);
SSL_CTX_set_verify(ctx,SSL_VERIFY_PEER,NULL);
/* establish a connection to the OCSP responder */
if (!(bio = my_connect(host, atoi(port), ssl, &ctx))) {
result = MYPROXY_OCSPRESULT_ERROR_CONNECTFAILURE;
goto end;
}
/* send the request and get a response */
resp = OCSP_sendreq_bio(bio, path, req);
if ((rc = OCSP_response_status(resp)) != OCSP_RESPONSE_STATUS_SUCCESSFUL) {
switch (rc) {
case OCSP_RESPONSE_STATUS_MALFORMEDREQUEST:
result = MYPROXY_OCSPRESULT_ERROR_MALFORMEDREQUEST; break;
case OCSP_RESPONSE_STATUS_INTERNALERROR:
result = MYPROXY_OCSPRESULT_ERROR_INTERNALERROR; break;
case OCSP_RESPONSE_STATUS_TRYLATER:
result = MYPROXY_OCSPRESULT_ERROR_TRYLATER; break;
case OCSP_RESPONSE_STATUS_SIGREQUIRED:
result = MYPROXY_OCSPRESULT_ERROR_SIGREQUIRED; break;
case OCSP_RESPONSE_STATUS_UNAUTHORIZED:
result = MYPROXY_OCSPRESULT_ERROR_UNAUTHORIZED; break;
}
goto end;
}
/* verify the response */
result = MYPROXY_OCSPRESULT_ERROR_INVALIDRESPONSE;
if (!(basic = OCSP_response_get1_basic(resp))) goto end;
if (usenonce && OCSP_check_nonce(req, basic) <= 0) goto end;
if (!responder_cert ||
(rc = OCSP_basic_verify(basic, responder_cert, store,
OCSP_TRUSTOTHER)) <= 0)
if ((rc = OCSP_basic_verify(basic, NULL, store, 0)) <= 0)
goto end;
if (!OCSP_resp_find_status(basic, id, &status, &reason, &producedAt,
&thisUpdate, &nextUpdate))
goto end;
if (!OCSP_check_validity(thisUpdate, nextUpdate, skew, maxage))
goto end;
/* All done. Set the return code based on the status from the response. */
if (status == V_OCSP_CERTSTATUS_REVOKED) {
result = MYPROXY_OCSPRESULT_CERTIFICATE_REVOKED;
myproxy_log("OCSP status revoked!");
} else {
result = MYPROXY_OCSPRESULT_CERTIFICATE_VALID;
myproxy_log("OCSP status valid");
}
end:
if (result < 0 && result != MYPROXY_OCSPRESULT_ERROR_NOTCONFIGURED) {
ssl_error_to_verror();
myproxy_log("OCSP check failed");
myproxy_log_verror();
}
if (bio) BIO_free_all(bio);
if (host) OPENSSL_free(host);
if (port) OPENSSL_free(port);
if (path) OPENSSL_free(path);
if (req) OCSP_REQUEST_free(req);
if (resp) OCSP_RESPONSE_free(resp);
if (basic) OCSP_BASICRESP_free(basic);
if (ctx) SSL_CTX_free(ctx); /* this does X509_STORE_free(store) */
if (certdir) free(certdir);
if (aiaocspurl) free(aiaocspurl);
return result;
}
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 *rsignfile = NULL, *rkeyfile = 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, *rsigner = NULL;
EVP_PKEY *key = NULL, *rkey = NULL;
BIO *acbio = NULL, *cbio = NULL;
BIO *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, *rother = NULL;
char *sign_certfile = NULL, *verify_certfile = NULL, *rcertfile = NULL;
unsigned long sign_flags = 0, verify_flags = 0, rflags = 0;
int ret = 1;
int accept_count = -1;
int badarg = 0;
int i;
int ignore_err = 0;
STACK *reqnames = NULL;
STACK_OF(OCSP_CERTID) *ids = NULL;
X509 *rca_cert = NULL;
char *ridx_filename = NULL;
char *rca_filename = NULL;
CA_DB *rdb = NULL;
int nmin = 0, ndays = -1;
if (bio_err == NULL) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
if (!load_config(bio_err, NULL))
goto end;
SSL_load_error_strings();
OpenSSL_add_ssl_algorithms();
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, "-port"))
{
if (args[1])
{
args++;
port = *args;
}
else badarg = 1;
}
else if (!strcmp(*args, "-ignore_err"))
ignore_err = 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, "-resp_no_certs"))
rflags |= OCSP_NOCERTS;
else if (!strcmp(*args, "-resp_key_id"))
rflags |= OCSP_RESPID_KEY;
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 if (!strcmp(*args, "-index"))
{
if (args[1])
{
args++;
ridx_filename = *args;
}
else badarg = 1;
}
else if (!strcmp(*args, "-CA"))
{
if (args[1])
{
args++;
rca_filename = *args;
}
else badarg = 1;
}
else if (!strcmp (*args, "-nmin"))
{
if (args[1])
{
args++;
nmin = atol(*args);
if (nmin < 0)
{
BIO_printf(bio_err,
"Illegal update period %s\n",
*args);
badarg = 1;
}
}
if (ndays == -1)
ndays = 0;
else badarg = 1;
}
else if (!strcmp (*args, "-nrequest"))
{
if (args[1])
{
args++;
accept_count = atol(*args);
if (accept_count < 0)
{
BIO_printf(bio_err,
"Illegal accept count %s\n",
*args);
badarg = 1;
}
}
else badarg = 1;
}
else if (!strcmp (*args, "-ndays"))
{
if (args[1])
{
args++;
ndays = atol(*args);
if (ndays < 0)
{
BIO_printf(bio_err,
"Illegal update period %s\n",
*args);
badarg = 1;
}
}
else badarg = 1;
}
else if (!strcmp(*args, "-rsigner"))
{
if (args[1])
{
args++;
rsignfile = *args;
}
else badarg = 1;
}
else if (!strcmp(*args, "-rkey"))
{
if (args[1])
{
args++;
rkeyfile = *args;
}
else badarg = 1;
}
else if (!strcmp(*args, "-rother"))
{
if (args[1])
{
args++;
rcertfile = *args;
}
else badarg = 1;
}
else badarg = 1;
args++;
}
/* Have we anything to do? */
if (!req && !reqin && !respin && !(port && ridx_filename)) 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_other 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_other 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_signature_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");
BIO_printf (bio_err, "-port num port to run responder on\n");
BIO_printf (bio_err, "-index file certificate status index file\n");
BIO_printf (bio_err, "-CA file CA certificate\n");
BIO_printf (bio_err, "-rsigner file responder certificate to sign responses with\n");
BIO_printf (bio_err, "-rkey file responder key to sign responses with\n");
BIO_printf (bio_err, "-rother file other certificates to include in response\n");
BIO_printf (bio_err, "-resp_no_certs don't include any certificates in response\n");
BIO_printf (bio_err, "-nmin n number of minutes before next update\n");
BIO_printf (bio_err, "-ndays n number of days before next update\n");
BIO_printf (bio_err, "-resp_key_id identify reponse by signing certificate key ID\n");
BIO_printf (bio_err, "-nrequest n number of requests to accept (default unlimited)\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 && port)
{
acbio = init_responder(port);
if (!acbio)
goto end;
}
if (rsignfile && !rdb)
{
if (!rkeyfile) rkeyfile = rsignfile;
rsigner = load_cert(bio_err, rsignfile, FORMAT_PEM,
NULL, e, "responder certificate");
if (!rsigner)
{
BIO_printf(bio_err, "Error loading responder certificate\n");
goto end;
}
rca_cert = load_cert(bio_err, rca_filename, FORMAT_PEM,
NULL, e, "CA certificate");
if (rcertfile)
{
rother = load_certs(bio_err, rcertfile, FORMAT_PEM,
NULL, e, "responder other certificates");
if (!rother) goto end;
}
rkey = load_key(bio_err, 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(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, 0, NULL, NULL,
"signer private key");
if (!key)
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 (req_text && req) OCSP_REQUEST_print(out, req, 0);
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 (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)
{
i = make_ocsp_response(&resp, req, rdb, rca_cert, rsigner, rkey, rother, rflags, nmin, ndays);
if (cbio)
send_ocsp_response(cbio, resp);
}
else if (host)
{
#ifndef OPENSSL_NO_SOCK
cbio = BIO_new_connect(host);
#else
BIO_printf(bio_err, "Error creating connect BIO - sockets not supported.\n");
goto end;
#endif
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;
#if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
ctx = SSL_CTX_new(SSLv23_client_method());
#elif !defined(OPENSSL_NO_SSL3)
ctx = SSL_CTX_new(SSLv3_client_method());
#elif !defined(OPENSSL_NO_SSL2)
ctx = SSL_CTX_new(SSLv2_client_method());
#else
BIO_printf(bio_err, "SSL is disabled\n");
goto end;
#endif
if (ctx == NULL)
{
BIO_printf(bio_err, "Error creating SSL context.\n");
goto end;
}
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;
}
done_resp:
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 (%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 (accept_count > 0)
accept_count--;
/* Redo if more connections needed */
if (accept_count)
{
BIO_free_all(cbio);
cbio = NULL;
OCSP_REQUEST_free(req);
req = NULL;
OCSP_RESPONSE_free(resp);
resp = NULL;
goto redo_accept;
}
goto end;
}
if (!store)
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");
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);
EVP_PKEY_free(rkey);
X509_free(issuer);
X509_free(cert);
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_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);
}
OPENSSL_EXIT(ret);
}
static int ocsp_check(CLI *c, X509_STORE_CTX *callback_ctx) {
int error, retval=0;
SOCKADDR_UNION addr;
X509 *cert;
X509 *issuer=NULL;
OCSP_CERTID *certID;
BIO *bio=NULL;
OCSP_REQUEST *request=NULL;
OCSP_RESPONSE *response=NULL;
OCSP_BASICRESP *basicResponse=NULL;
ASN1_GENERALIZEDTIME *revoked_at=NULL,
*this_update=NULL, *next_update=NULL;
int status, reason;
/* connect specified OCSP server (responder) */
c->fd=s_socket(c->opt->ocsp_addr.addr[0].sa.sa_family, SOCK_STREAM, 0,
0, "OCSP: socket (auth_user)");
if(c->fd<0)
return 0; /* reject connection */
memcpy(&addr, &c->opt->ocsp_addr.addr[0], sizeof addr);
if(connect_blocking(c, &addr, addr_len(addr)))
goto cleanup;
s_log(LOG_DEBUG, "OCSP: server connected");
/* get current certificate ID */
cert=X509_STORE_CTX_get_current_cert(callback_ctx); /* get current cert */
if(X509_STORE_CTX_get1_issuer(&issuer, callback_ctx, cert)!=1) {
sslerror("OCSP: X509_STORE_CTX_get1_issuer");
goto cleanup;
}
certID=OCSP_cert_to_id(0, cert, issuer);
if(!certID) {
sslerror("OCSP: OCSP_cert_to_id");
goto cleanup;
}
/* build request */
request=OCSP_REQUEST_new();
if(!request) {
sslerror("OCSP: OCSP_REQUEST_new");
goto cleanup;
}
if(!OCSP_request_add0_id(request, certID)) {
sslerror("OCSP: OCSP_request_add0_id");
goto cleanup;
}
OCSP_request_add1_nonce(request, 0, -1);
/* send the request and get a response */
/* FIXME: this code won't work with ucontext threading */
/* (blocking sockets are used) */
bio=BIO_new_fd(c->fd, BIO_NOCLOSE);
response=OCSP_sendreq_bio(bio, c->opt->ocsp_path, request);
if(!response) {
sslerror("OCSP: OCSP_sendreq_bio");
goto cleanup;
}
error=OCSP_response_status(response);
if(error!=OCSP_RESPONSE_STATUS_SUCCESSFUL) {
s_log(LOG_WARNING, "OCSP: Responder error: %d: %s",
error, OCSP_response_status_str(error));
goto cleanup;
}
s_log(LOG_DEBUG, "OCSP: Response received");
/* verify the response */
basicResponse=OCSP_response_get1_basic(response);
if(!basicResponse) {
sslerror("OCSP: OCSP_response_get1_basic");
goto cleanup;
}
if(OCSP_check_nonce(request, basicResponse)<=0) {
sslerror("OCSP: OCSP_check_nonce");
goto cleanup;
}
if(OCSP_basic_verify(basicResponse, NULL,
c->opt->revocation_store, c->opt->ocsp_flags)<=0) {
sslerror("OCSP: OCSP_basic_verify");
goto cleanup;
}
if(!OCSP_resp_find_status(basicResponse, certID, &status, &reason,
&revoked_at, &this_update, &next_update)) {
sslerror("OCSP: OCSP_resp_find_status");
goto cleanup;
}
s_log(LOG_NOTICE, "OCSP: Status: %d: %s",
status, OCSP_cert_status_str(status));
log_time(LOG_INFO, "OCSP: This update", this_update);
log_time(LOG_INFO, "OCSP: Next update", next_update);
/* check if the response is valid for at least one minute */
if(!OCSP_check_validity(this_update, next_update, 60, -1)) {
sslerror("OCSP: OCSP_check_validity");
goto cleanup;
}
if(status==V_OCSP_CERTSTATUS_REVOKED) {
if(reason==-1)
s_log(LOG_WARNING, "OCSP: Certificate revoked");
else
s_log(LOG_WARNING, "OCSP: Certificate revoked: %d: %s",
reason, OCSP_crl_reason_str(reason));
log_time(LOG_NOTICE, "OCSP: Revoked at", revoked_at);
goto cleanup;
}
retval=1; /* accept connection */
cleanup:
if(bio)
BIO_free_all(bio);
if(issuer)
X509_free(issuer);
if(request)
OCSP_REQUEST_free(request);
if(response)
OCSP_RESPONSE_free(response);
if(basicResponse)
OCSP_BASICRESP_free(basicResponse);
closesocket(c->fd);
c->fd=-1; /* avoid double close on cleanup */
return retval;
}
