Load OCSP responder key before waiting for an incoming
[openssl.git] / apps / ocsp.c
index f23aa4c52a856b397f794d79964cc83dd61c000c..66460391fbfd0badd2bdb66f061e1c6c6b25d43c 100644 (file)
 #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)
+
+/* 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_OF(OCSP_CERTID) *ids);
 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
-                               STACK *names, STACK_OF(OCSP_CERTID) *ids);
+                               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,
+                       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 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);
 
 #undef PROG
 #define PROG ocsp_main
@@ -77,31 +105,47 @@ int MAIN(int, char **);
 
 int MAIN(int argc, char **argv)
        {
+       ENGINE *e = NULL;
        char **args;
-       char *host = NULL, *path = "/";
+       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;
+       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;
+       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;
        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;
+       int nmin = 0, ndays = -1;
+
        if (bio_err == NULL) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
-       ERR_load_crypto_strings();
+       SSL_load_error_strings();
        args = argv + 1;
        reqnames = sk_new_null();
        ids = sk_OCSP_CERTID_new_null();
@@ -116,6 +160,19 @@ int MAIN(int argc, char **argv)
                                }
                        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])
@@ -125,12 +182,41 @@ int MAIN(int argc, char **argv)
                                }
                        else badarg = 1;
                        }
+               else if (!strcmp(*args, "-port"))
+                       {
+                       if (args[1])
+                               {
+                               args++;
+                               port = *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, "-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;
@@ -167,6 +253,34 @@ int MAIN(int argc, char **argv)
                                }
                        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])
@@ -185,6 +299,38 @@ int MAIN(int argc, char **argv)
                                }
                        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])
@@ -227,7 +373,8 @@ int MAIN(int argc, char **argv)
                                {
                                args++;
                                X509_free(issuer);
-                               issuer = load_cert(bio_err, *args, FORMAT_PEM);
+                               issuer = load_cert(bio_err, *args, FORMAT_PEM,
+                                       NULL, e, "issuer certificate");
                                if(!issuer) goto end;
                                }
                        else badarg = 1;
@@ -238,7 +385,8 @@ int MAIN(int argc, char **argv)
                                {
                                args++;
                                X509_free(cert);
-                               cert = load_cert(bio_err, *args, FORMAT_PEM);
+                               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;
@@ -259,38 +407,157 @@ int MAIN(int argc, char **argv)
                                }
                        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) badarg = 1;
+       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, "-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, "-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, "-noverify     don't verify response\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");
+               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 requests with\n");
+               BIO_printf (bio_err, "-rkey file         responder key to sign requests 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;
                }
 
@@ -322,7 +589,54 @@ int MAIN(int argc, char **argv)
                        }
                }
 
-       if (!req && (signfile || reqout || host || add_nonce))
+       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, 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;
+               }
+       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;
@@ -333,40 +647,65 @@ int MAIN(int argc, char **argv)
        if (signfile)
                {
                if (!keyfile) keyfile = signfile;
-               signer = load_cert(bio_err, signfile, FORMAT_PEM);
+               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;
                        }
-               key = load_key(bio_err, keyfile, FORMAT_PEM, NULL, NULL);
-               if (!key)
+               if (sign_certfile)
                        {
-                       BIO_printf(bio_err, "Error loading signer private key\n");
-                       goto end;
+                       sign_other = load_certs(bio_err, sign_certfile, FORMAT_PEM,
+                               NULL, e, "signer certificates");
+                       if (!sign_other) goto end;
                        }
-               if (!OCSP_request_sign(req, signer, key, EVP_sha1(), NULL, 0))
+               key = load_key(bio_err, keyfile, FORMAT_PEM, 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 (reqout)
+       if (req_text && req) OCSP_REQUEST_print(out, req, 0);
+
+       if (ridx_filename && (!rkey || !rsigner || !rca_cert))
                {
-               derbio = BIO_new_file(reqout, "wb");
-               if (!derbio)
+               BIO_printf(bio_err, "Need a responder certificate, key and CA for this operation!\n");
+               goto end;
+               }
+
+       if (ridx_filename && !rdb)
+               {
+               BIO *db_bio = NULL;
+               db_bio = BIO_new_file(ridx_filename, "r");
+               if (!db_bio)
                        {
-                       BIO_printf(bio_err, "Error opening file %s\n", reqout);
+                       BIO_printf(bio_err, "Error opening index file %s\n", ridx_filename);
                        goto end;
                        }
-               i2d_OCSP_REQUEST_bio(derbio, req);
-               BIO_free(derbio);
+               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;
                }
 
-       if (req_text && req) OCSP_REQUEST_print(out, req, 0);
-
-       if (host)
+       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)
                {
                cbio = BIO_new_connect(host);
                if (!cbio)
@@ -374,13 +713,22 @@ int MAIN(int argc, char **argv)
                        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(cbio);
+               BIO_free_all(cbio);
                cbio = NULL;
                if (!resp)
                        {
@@ -411,6 +759,8 @@ int MAIN(int argc, char **argv)
                goto end;
                }
 
+       done_resp:
+
        if (respout)
                {
                derbio = BIO_new_file(respout, "wb");
@@ -435,8 +785,33 @@ int MAIN(int argc, char **argv)
 
        if (resp_text) OCSP_RESPONSE_print(out, resp, 0);
 
-       store = setup_verify(bio_err, CAfile, CApath);
-       if(!store) 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;
+               }
+
+       if (!store)
+               store = setup_verify(bio_err, CAfile, CApath);
+       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);
 
@@ -448,13 +823,19 @@ int MAIN(int argc, char **argv)
 
        if (!noverify)
                {
-               if (req && (OCSP_check_nonce(req, bs) <= 0))
+               if (req && ((i = OCSP_check_nonce(req, bs)) <= 0))
                        {
-                       BIO_printf(bio_err, "Nonce Verify error\n");
-                       goto end;
+                       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, NULL, store, 0);
+               i = OCSP_basic_verify(bs, verify_other, store, verify_flags);
+                if (i < 0) i = OCSP_basic_verify(bs, NULL, store, 0);
 
                if(i <= 0)
                        {
@@ -466,7 +847,7 @@ int MAIN(int argc, char **argv)
 
                }
 
-       if (!print_ocsp_summary(out, bs, req, reqnames, ids))
+       if (!print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage))
                goto end;
 
        ret = 0;
@@ -476,15 +857,30 @@ end:
        X509_free(signer);
        X509_STORE_free(store);
        EVP_PKEY_free(key);
+       EVP_PKEY_free(rkey);
        X509_free(issuer);
        X509_free(cert);
-       BIO_free(cbio);
+       X509_free(rsigner);
+       X509_free(rca_cert);
+       TXT_DB_free(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);
+               }
 
        EXIT(ret);
 }
@@ -525,7 +921,7 @@ static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, X509 *issuer,
        if(!*req) *req = OCSP_REQUEST_new();
        if(!*req) goto err;
        iname = X509_get_subject_name(issuer);
-       ikey = issuer->cert_info->key->public_key;
+       ikey = X509_get0_pubkey_bitstr(issuer);
        sno = s2i_ASN1_INTEGER(NULL, serial);
        if(!sno)
                {
@@ -544,7 +940,8 @@ static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, X509 *issuer,
        }
 
 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
-                                       STACK *names, STACK_OF(OCSP_CERTID) *ids)
+                                       STACK *names, STACK_OF(OCSP_CERTID) *ids,
+                                       long nsec, long maxage)
        {
        OCSP_CERTID *id;
        char *name;
@@ -569,6 +966,15 @@ static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
                        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: ");
@@ -578,14 +984,14 @@ static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
                if(nextupd)
                        {
                        BIO_puts(out, "\tNext Update: ");
-                       ASN1_GENERALIZEDTIME_print(out, thisupd);
+                       ASN1_GENERALIZEDTIME_print(out, nextupd);
                        BIO_puts(out, "\n");
                        }
 
                if (status != V_OCSP_CERTSTATUS_REVOKED)
                        continue;
 
-               if (reason > 0)
+               if (reason != -1)
                        BIO_printf(out, "\tReason: %s\n",
                                OCSP_crl_reason_str(reason));
 
@@ -597,3 +1003,206 @@ static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
        return 1;
        }
 
+
+static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, TXT_DB *db,
+                       X509 *ca, X509 *rcert, EVP_PKEY *rkey,
+                       STACK_OF(X509) *rother, unsigned long flags,
+                       int nmin, int ndays)
+       {
+       ASN1_TIME *thisupd = NULL, *nextupd = NULL;
+       OCSP_CERTID *cid, *ca_id = NULL;
+       OCSP_BASICRESP *bs = NULL;
+       int i, id_count, ret = 1;
+
+
+       id_count = OCSP_request_onereq_count(req);
+
+       if (id_count <= 0)
+               {
+               *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
+               goto end;
+               }
+
+       ca_id = OCSP_cert_to_id(EVP_sha1(), NULL, ca);
+
+       bs = OCSP_BASICRESP_new();
+       thisupd = X509_gmtime_adj(NULL, 0);
+       if (ndays != -1)
+               nextupd = X509_gmtime_adj(NULL, nmin * 60 + ndays * 3600 * 24 );
+
+       /* Examine each certificate id in the request */
+       for (i = 0; i < id_count; i++)
+               {
+               OCSP_ONEREQ *one;
+               ASN1_INTEGER *serial;
+               char **inf;
+               one = OCSP_request_onereq_get0(req, i);
+               cid = OCSP_onereq_get0_id(one);
+               /* 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, EVP_sha1(), rother, flags);
+
+       *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);
+       return ret;
+
+       }
+
+static char **lookup_serial(TXT_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);
+       row[DB_serial] = itmp;
+       BN_free(bn);
+       rrow=TXT_DB_get_by_index(db,DB_serial,row);
+       OPENSSL_free(itmp);
+       return rrow;
+       }
+
+/* Quick and dirty OCSP server: read in and parse input request */
+
+static BIO *init_responder(char *port)
+       {
+       BIO *acbio = NULL, *bufbio = NULL;
+       bufbio = BIO_new(BIO_f_buffer());
+       if (!bufbio) 
+               goto err;
+       acbio = BIO_new_accept(port);
+       if (!acbio)
+               goto err;
+       BIO_set_accept_bios(acbio, bufbio);
+       bufbio = NULL;
+
+       if (BIO_do_accept(acbio) <= 0)
+               {
+                       BIO_printf(bio_err, "Error setting up accept BIO\n");
+                       ERR_print_errors(bio_err);
+                       goto err;
+               }
+
+       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);
+                       return 0;
+               }
+
+       cbio = BIO_pop(acbio);
+       *pcbio = cbio;
+
+       for(;;)
+               {
+               len = BIO_gets(cbio, inbuf, 1024);
+               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");
+                               return 1;
+                               }
+                       have_post = 1;
+                       }
+               /* Look for end of headers */
+               if ((inbuf[0] == '\r') || (inbuf[0] == '\n'))
+                       break;
+               }
+
+       /* Try to read OCSP request */
+
+       req = d2i_OCSP_REQUEST_bio(cbio, NULL);
+
+       if (!req)
+               {
+               BIO_printf(bio_err, "Error parsing OCSP request\n");
+               ERR_print_errors(bio_err);
+               }
+
+       *preq = req;
+
+       return 1;
+
+       }
+
+static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp)
+       {
+       char http_resp[] = 
+               "HTTP/1.0 200 OK\r\nContent-type: application/ocsp-response\r\n"
+               "Content-Length: %d\r\n\r\n";
+       if (!cbio)
+               return 0;
+       BIO_printf(cbio, http_resp, i2d_OCSP_RESPONSE(resp, NULL));
+       i2d_OCSP_RESPONSE_bio(cbio, resp);
+       BIO_flush(cbio);
+       return 1;
+       }
+