* Hudson (tjh@cryptsoft.com).
*
*/
-
+#ifndef OPENSSL_NO_OCSP
+#define USE_SOCKETS
#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
-#include <openssl/pem.h>
-#include <openssl/ocsp.h>
-#include <openssl/err.h>
+#include "apps.h" /* needs to be included before the openssl headers! */
+#include <openssl/e_os2.h>
#include <openssl/ssl.h>
-#include "apps.h"
+#include <openssl/err.h>
/* Maximum leeway in validity period: default 5 minutes */
#define MAX_VALIDITY_PERIOD (5 * 60)
-/* CA index.txt definitions */
-#define DB_type 0
-#define DB_exp_date 1
-#define DB_rev_date 2
-#define DB_serial 3 /* index - unique */
-#define DB_file 4
-#define DB_name 5 /* index - unique for active */
-#define DB_NUMBER 6
-
-#define DB_TYPE_REV 'R'
-#define DB_TYPE_EXP 'E'
-#define DB_TYPE_VAL 'V'
-
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 *names, STACK_OF(OCSP_CERTID) *ids,
long nsec, long maxage);
-static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, TXT_DB *db,
+static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
X509 *ca, X509 *rcert, EVP_PKEY *rkey,
STACK_OF(X509) *rother, unsigned long flags,
int nmin, int ndays);
-static char **lookup_serial(TXT_DB *db, ASN1_INTEGER *ser);
-static OCSP_REQUEST *do_responder(BIO **cbio, char *port);
+static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser);
+static BIO *init_responder(char *port);
+static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port);
static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp);
+static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
+ OCSP_REQUEST *req, int req_timeout);
#undef PROG
#define PROG ocsp_main
X509 *issuer = NULL, *cert = NULL;
X509 *signer = NULL, *rsigner = NULL;
EVP_PKEY *key = NULL, *rkey = NULL;
- BIO *cbio = NULL, *derbio = NULL;
+ BIO *acbio = NULL, *cbio = NULL;
+ BIO *derbio = NULL;
BIO *out = NULL;
+ int req_timeout = -1;
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;
- TXT_DB *rdb = 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();
}
else badarg = 1;
}
+ else if (!strcmp(*args, "-timeout"))
+ {
+ if (args[1])
+ {
+ args++;
+ req_timeout = atol(*args);
+ if (req_timeout < 0)
+ {
+ BIO_printf(bio_err,
+ "Illegal timeout value %s\n",
+ *args);
+ badarg = 1;
+ }
+ }
+ else badarg = 1;
+ }
else if (!strcmp(*args, "-url"))
{
if (args[1])
}
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, "-responder_no_certs"))
+ else if (!strcmp(*args, "-resp_no_certs"))
rflags |= OCSP_NOCERTS;
- else if (!strcmp(*args, "-responder_no_time"))
- rflags |= OCSP_NOTIME;
- else if (!strcmp(*args, "-responder_key_id"))
+ else if (!strcmp(*args, "-resp_key_id"))
rflags |= OCSP_RESPID_KEY;
else if (!strcmp(*args, "-no_certs"))
sign_flags |= OCSP_NOCERTS;
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])
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, "-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, "-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, "-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_sig_verify don't check signature on response\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 (!req && port)
{
- req = do_responder(&cbio, port);
- if (!req && !cbio)
+ 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 && cbio)
+ if (!req)
{
resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
send_ocsp_response(cbio, resp);
NULL, e, "signer certificates");
if (!sign_other) goto end;
}
- key = load_key(bio_err, keyfile, FORMAT_PEM, NULL, NULL,
+ key = load_key(bio_err, keyfile, FORMAT_PEM, 0, NULL, NULL,
"signer private key");
if (!key)
goto end;
if (req_text && req) OCSP_REQUEST_print(out, req, 0);
- if (rsignfile)
+ if (reqout)
{
- if (!rkeyfile) rkeyfile = rsignfile;
- rsigner = load_cert(bio_err, rsignfile, FORMAT_PEM,
- NULL, e, "responder certificate");
- if (!rsigner)
+ derbio = BIO_new_file(reqout, "wb");
+ if(!derbio)
{
- BIO_printf(bio_err, "Error loading responder certificate\n");
+ BIO_printf(bio_err, "Error opening file %s\n", reqout);
goto end;
}
- rca_cert = load_cert(bio_err, rca_filename, FORMAT_PEM,
- NULL, e, "CA certificate");
- if (rcertfile)
- {
- rother = load_certs(bio_err, sign_certfile, FORMAT_PEM,
- NULL, e, "responder other certificates");
- if (!sign_other) goto end;
- }
- rkey = load_key(bio_err, rkeyfile, FORMAT_PEM, NULL, NULL,
- "responder private key");
- if (!rkey)
- goto end;
+ i2d_OCSP_REQUEST_bio(derbio, req);
+ BIO_free(derbio);
}
if (ridx_filename && (!rkey || !rsigner || !rca_cert))
goto end;
}
- if (ridx_filename)
+ if (ridx_filename && !rdb)
+ {
+ rdb = load_index(ridx_filename, NULL);
+ if (!rdb) goto end;
+ if (!index_index(rdb)) goto end;
+ }
+
+ if (rdb)
{
- BIO *db_bio = NULL;
- db_bio = BIO_new_file(ridx_filename, "r");
- if (!db_bio)
- {
- BIO_printf(bio_err, "Error opening index file %s\n", ridx_filename);
- goto end;
- }
- rdb = TXT_DB_read(db_bio, DB_NUMBER);
- BIO_free(db_bio);
- if (!rdb)
- {
- BIO_printf(bio_err, "Error reading index file %s\n", ridx_filename);
- goto end;
- }
- if (!make_serial_index(rdb))
- goto end;
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)
{
- 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;
+#ifndef OPENSSL_NO_SOCK
+ resp = process_responder(bio_err, req, host, path,
+ port, use_ssl, req_timeout);
if (!resp)
- {
- BIO_printf(bio_err, "Error querying OCSP responsder\n");
goto end;
- }
+#else
+ BIO_printf(bio_err, "Error creating connect BIO - sockets not supported.\n");
+ goto end;
+#endif
}
else if (respin)
{
if (i != OCSP_RESPONSE_STATUS_SUCCESSFUL)
{
- BIO_printf(out, "Responder Error: %s (%ld)\n",
+ 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 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;
+ }
- store = setup_verify(bio_err, CAfile, CApath);
- if(!store) 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,
if(i <= 0)
{
- BIO_printf(bio_err, "Response Verify Failure\n", i);
+ BIO_printf(bio_err, "Response Verify Failure\n");
ERR_print_errors(bio_err);
}
else
X509_free(cert);
X509_free(rsigner);
X509_free(rca_cert);
- TXT_DB_free(rdb);
+ free_index(rdb);
BIO_free_all(cbio);
+ BIO_free_all(acbio);
BIO_free(out);
OCSP_REQUEST_free(req);
OCSP_RESPONSE_free(resp);
OPENSSL_free(host);
OPENSSL_free(port);
OPENSSL_free(path);
- SSL_CTX_free(ctx);
}
- EXIT(ret);
+ OPENSSL_EXIT(ret);
}
static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, X509 *issuer,
}
-static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, TXT_DB *db,
+static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
X509 *ca, X509 *rcert, EVP_PKEY *rkey,
STACK_OF(X509) *rother, unsigned long flags,
int nmin, int ndays)
}
-static char **lookup_serial(TXT_DB *db, ASN1_INTEGER *ser)
+static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser)
{
int i;
BIGNUM *bn = NULL;
char *itmp, *row[DB_NUMBER],**rrow;
for (i = 0; i < DB_NUMBER; i++) row[i] = NULL;
bn = ASN1_INTEGER_to_BN(ser,NULL);
- itmp = BN_bn2hex(bn);
+ OPENSSL_assert(bn); /* FIXME: should report an error at this point and abort */
+ if (BN_is_zero(bn))
+ itmp = BUF_strdup("00");
+ else
+ itmp = BN_bn2hex(bn);
row[DB_serial] = itmp;
BN_free(bn);
- rrow=TXT_DB_get_by_index(db,DB_serial,row);
+ rrow=TXT_DB_get_by_index(db->db,DB_serial,row);
OPENSSL_free(itmp);
return rrow;
}
/* Quick and dirty OCSP server: read in and parse input request */
-static OCSP_REQUEST *do_responder(BIO **pcbio, char *port)
+static BIO *init_responder(char *port)
{
- int have_post = 0, len;
- OCSP_REQUEST *req = NULL;
- char inbuf[1024];
- BIO *acbio = NULL, *bufbio = NULL, *cbio = NULL;
+ BIO *acbio = NULL, *bufbio = NULL;
bufbio = BIO_new(BIO_f_buffer());
if (!bufbio)
goto err;
+#ifndef OPENSSL_NO_SOCK
acbio = BIO_new_accept(port);
+#else
+ BIO_printf(bio_err, "Error setting up accept BIO - sockets not supported.\n");
+#endif
if (!acbio)
goto err;
BIO_set_accept_bios(acbio, bufbio);
goto err;
}
- BIO_printf(bio_err, "Waiting for OCSP client connection...\n");
+ return acbio;
+
+ err:
+ BIO_free_all(acbio);
+ BIO_free(bufbio);
+ return NULL;
+ }
+
+static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port)
+ {
+ int have_post = 0, len;
+ OCSP_REQUEST *req = NULL;
+ char inbuf[1024];
+ BIO *cbio = NULL;
if (BIO_do_accept(acbio) <= 0)
{
BIO_printf(bio_err, "Error accepting connection\n");
ERR_print_errors(bio_err);
- goto err;
+ return 0;
}
- BIO_printf(bio_err, "Connection Established\n");
-
-
cbio = BIO_pop(acbio);
- BIO_free_all(acbio);
- acbio = NULL;
+ *pcbio = cbio;
for(;;)
{
- len = BIO_gets(cbio, inbuf, 1024);
- if (len <= 0) goto err;
+ len = BIO_gets(cbio, inbuf, sizeof inbuf);
+ if (len <= 0)
+ return 1;
/* Look for "POST" signalling start of query */
if (!have_post)
{
if(strncmp(inbuf, "POST", 4))
{
BIO_printf(bio_err, "Invalid request\n");
- goto err;
+ return 1;
}
have_post = 1;
}
req = d2i_OCSP_REQUEST_bio(cbio, NULL);
- *pcbio = cbio;
-
if (!req)
{
BIO_printf(bio_err, "Error parsing OCSP request\n");
ERR_print_errors(bio_err);
}
- return req;
+ *preq = req;
+
+ return 1;
- err:
- BIO_free_all(acbio);
- BIO_free_all(cbio);
- BIO_free(bufbio);
- OCSP_REQUEST_free(req);
- return NULL;
}
static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp)
return 0;
BIO_printf(cbio, http_resp, i2d_OCSP_RESPONSE(resp, NULL));
i2d_OCSP_RESPONSE_bio(cbio, resp);
- BIO_flush(cbio);
+ (void)BIO_flush(cbio);
return 1;
}
+static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
+ OCSP_REQUEST *req, int req_timeout)
+ {
+ int fd;
+ int rv;
+ OCSP_REQ_CTX *ctx = NULL;
+ OCSP_RESPONSE *rsp = NULL;
+ fd_set confds;
+ struct timeval tv;
+
+ if (req_timeout != -1)
+ BIO_set_nbio(cbio, 1);
+
+ rv = BIO_do_connect(cbio);
+
+ if ((rv <= 0) && ((req_timeout == -1) || !BIO_should_retry(cbio)))
+ {
+ BIO_puts(err, "Error connecting BIO\n");
+ return NULL;
+ }
+
+ if (req_timeout == -1)
+ return OCSP_sendreq_bio(cbio, path, req);
+
+ if (BIO_get_fd(cbio, &fd) <= 0)
+ {
+ BIO_puts(err, "Can't get connection fd\n");
+ goto err;
+ }
+
+ if (rv <= 0)
+ {
+ FD_ZERO(&confds);
+ openssl_fdset(fd, &confds);
+ tv.tv_usec = 0;
+ tv.tv_sec = req_timeout;
+ rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
+ if (rv == 0)
+ {
+ BIO_puts(err, "Timeout on connect\n");
+ return NULL;
+ }
+ }
+
+
+ ctx = OCSP_sendreq_new(cbio, path, req, -1);
+ if (!ctx)
+ return NULL;
+
+ for (;;)
+ {
+ rv = OCSP_sendreq_nbio(&rsp, ctx);
+ if (rv != -1)
+ break;
+ FD_ZERO(&confds);
+ openssl_fdset(fd, &confds);
+ tv.tv_usec = 0;
+ tv.tv_sec = req_timeout;
+ if (BIO_should_read(cbio))
+ rv = select(fd + 1, (void *)&confds, NULL, NULL, &tv);
+ else if (BIO_should_write(cbio))
+ rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
+ else
+ {
+ BIO_puts(err, "Unexpected retry condition\n");
+ goto err;
+ }
+ if (rv == 0)
+ {
+ BIO_puts(err, "Timeout on request\n");
+ break;
+ }
+ if (rv == -1)
+ {
+ BIO_puts(err, "Select error\n");
+ break;
+ }
+
+ }
+ err:
+ if (ctx)
+ OCSP_REQ_CTX_free(ctx);
+
+ return rsp;
+ }
+
+OCSP_RESPONSE *process_responder(BIO *err, OCSP_REQUEST *req,
+ char *host, char *path, char *port, int use_ssl,
+ int req_timeout)
+ {
+ BIO *cbio = NULL;
+ SSL_CTX *ctx = NULL;
+ OCSP_RESPONSE *resp = NULL;
+ cbio = BIO_new_connect(host);
+ if (!cbio)
+ {
+ BIO_printf(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(err, "SSL is disabled\n");
+ goto end;
+#endif
+ if (ctx == NULL)
+ {
+ BIO_printf(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);
+ }
+ resp = query_responder(err, cbio, path, req, req_timeout);
+ if (!resp)
+ BIO_printf(bio_err, "Error querying OCSP responsder\n");
+ end:
+ if (ctx)
+ SSL_CTX_free(ctx);
+ if (cbio)
+ BIO_free_all(cbio);
+ return resp;
+ }
+
+#endif