diff options
Diffstat (limited to 'openssl-1.1.0h/apps/ocsp.c')
| -rw-r--r-- | openssl-1.1.0h/apps/ocsp.c | 1290 |
1 files changed, 1290 insertions, 0 deletions
diff --git a/openssl-1.1.0h/apps/ocsp.c b/openssl-1.1.0h/apps/ocsp.c new file mode 100644 index 0000000..4b53334 --- /dev/null +++ b/openssl-1.1.0h/apps/ocsp.c @@ -0,0 +1,1290 @@ +/* + * Copyright 2001-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include <openssl/opensslconf.h> + +#ifdef OPENSSL_NO_OCSP +NON_EMPTY_TRANSLATION_UNIT +#else +# ifdef OPENSSL_SYS_VMS +# define _XOPEN_SOURCE_EXTENDED/* So fd_set and friends get properly defined + * on OpenVMS */ +# endif + +# define USE_SOCKETS + +# include <stdio.h> +# include <stdlib.h> +# include <string.h> +# include <time.h> +# include <ctype.h> + +/* Needs to be included before the openssl headers */ +# include "apps.h" +# include <openssl/e_os2.h> +# include <openssl/crypto.h> +# include <openssl/err.h> +# include <openssl/ssl.h> +# include <openssl/evp.h> +# include <openssl/bn.h> +# include <openssl/x509v3.h> + +# if defined(NETWARE_CLIB) +# ifdef NETWARE_BSDSOCK +# include <sys/socket.h> +# include <sys/bsdskt.h> +# else +# include <novsock2.h> +# endif +# elif defined(NETWARE_LIBC) +# ifdef NETWARE_BSDSOCK +# include <sys/select.h> +# else +# include <novsock2.h> +# endif +# endif + +/* Maximum leeway in validity period: default 5 minutes */ +# define MAX_VALIDITY_PERIOD (5 * 60) + +static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, + const EVP_MD *cert_id_md, X509 *issuer, + STACK_OF(OCSP_CERTID) *ids); +static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, + const EVP_MD *cert_id_md, X509 *issuer, + STACK_OF(OCSP_CERTID) *ids); +static void print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req, + STACK_OF(OPENSSL_STRING) *names, + STACK_OF(OCSP_CERTID) *ids, long nsec, + long maxage); +static void make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, + CA_DB *db, X509 *ca, X509 *rcert, + EVP_PKEY *rkey, const EVP_MD *md, + STACK_OF(X509) *rother, unsigned long flags, + int nmin, int ndays, int badsig); + +static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser); +static BIO *init_responder(const char *port); +static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio); +static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp); + +# ifndef OPENSSL_NO_SOCK +static OCSP_RESPONSE *query_responder(BIO *cbio, const char *host, + const char *path, + const STACK_OF(CONF_VALUE) *headers, + OCSP_REQUEST *req, int req_timeout); +# endif + +typedef enum OPTION_choice { + OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, + OPT_OUTFILE, OPT_TIMEOUT, OPT_URL, OPT_HOST, OPT_PORT, + OPT_IGNORE_ERR, OPT_NOVERIFY, OPT_NONCE, OPT_NO_NONCE, + OPT_RESP_NO_CERTS, OPT_RESP_KEY_ID, OPT_NO_CERTS, + OPT_NO_SIGNATURE_VERIFY, OPT_NO_CERT_VERIFY, OPT_NO_CHAIN, + OPT_NO_CERT_CHECKS, OPT_NO_EXPLICIT, OPT_TRUST_OTHER, + OPT_NO_INTERN, OPT_BADSIG, OPT_TEXT, OPT_REQ_TEXT, OPT_RESP_TEXT, + OPT_REQIN, OPT_RESPIN, OPT_SIGNER, OPT_VAFILE, OPT_SIGN_OTHER, + OPT_VERIFY_OTHER, OPT_CAFILE, OPT_CAPATH, OPT_NOCAFILE, OPT_NOCAPATH, + OPT_VALIDITY_PERIOD, OPT_STATUS_AGE, OPT_SIGNKEY, OPT_REQOUT, + OPT_RESPOUT, OPT_PATH, OPT_ISSUER, OPT_CERT, OPT_SERIAL, + OPT_INDEX, OPT_CA, OPT_NMIN, OPT_REQUEST, OPT_NDAYS, OPT_RSIGNER, + OPT_RKEY, OPT_ROTHER, OPT_RMD, OPT_HEADER, + OPT_V_ENUM, + OPT_MD +} OPTION_CHOICE; + +OPTIONS ocsp_options[] = { + {"help", OPT_HELP, '-', "Display this summary"}, + {"out", OPT_OUTFILE, '>', "Output filename"}, + {"timeout", OPT_TIMEOUT, 'p', + "Connection timeout (in seconds) to the OCSP responder"}, + {"url", OPT_URL, 's', "Responder URL"}, + {"host", OPT_HOST, 's', "TCP/IP hostname:port to connect to"}, + {"port", OPT_PORT, 'p', "Port to run responder on"}, + {"ignore_err", OPT_IGNORE_ERR, '-', + "Ignore Error response from OCSP responder, and retry "}, + {"noverify", OPT_NOVERIFY, '-', "Don't verify response at all"}, + {"nonce", OPT_NONCE, '-', "Add OCSP nonce to request"}, + {"no_nonce", OPT_NO_NONCE, '-', "Don't add OCSP nonce to request"}, + {"resp_no_certs", OPT_RESP_NO_CERTS, '-', + "Don't include any certificates in response"}, + {"resp_key_id", OPT_RESP_KEY_ID, '-', + "Identify response by signing certificate key ID"}, + {"no_certs", OPT_NO_CERTS, '-', + "Don't include any certificates in signed request"}, + {"no_signature_verify", OPT_NO_SIGNATURE_VERIFY, '-', + "Don't check signature on response"}, + {"no_cert_verify", OPT_NO_CERT_VERIFY, '-', + "Don't check signing certificate"}, + {"no_chain", OPT_NO_CHAIN, '-', "Don't chain verify response"}, + {"no_cert_checks", OPT_NO_CERT_CHECKS, '-', + "Don't do additional checks on signing certificate"}, + {"no_explicit", OPT_NO_EXPLICIT, '-', + "Do not explicitly check the chain, just verify the root"}, + {"trust_other", OPT_TRUST_OTHER, '-', + "Don't verify additional certificates"}, + {"no_intern", OPT_NO_INTERN, '-', + "Don't search certificates contained in response for signer"}, + {"badsig", OPT_BADSIG, '-', + "Corrupt last byte of loaded OSCP response signature (for test)"}, + {"text", OPT_TEXT, '-', "Print text form of request and response"}, + {"req_text", OPT_REQ_TEXT, '-', "Print text form of request"}, + {"resp_text", OPT_RESP_TEXT, '-', "Print text form of response"}, + {"reqin", OPT_REQIN, 's', "File with the DER-encoded request"}, + {"respin", OPT_RESPIN, 's', "File with the DER-encoded response"}, + {"signer", OPT_SIGNER, '<', "Certificate to sign OCSP request with"}, + {"VAfile", OPT_VAFILE, '<', "Validator certificates file"}, + {"sign_other", OPT_SIGN_OTHER, '<', + "Additional certificates to include in signed request"}, + {"verify_other", OPT_VERIFY_OTHER, '<', + "Additional certificates to search for signer"}, + {"CAfile", OPT_CAFILE, '<', "Trusted certificates file"}, + {"CApath", OPT_CAPATH, '<', "Trusted certificates directory"}, + {"no-CAfile", OPT_NOCAFILE, '-', + "Do not load the default certificates file"}, + {"no-CApath", OPT_NOCAPATH, '-', + "Do not load certificates from the default certificates directory"}, + {"validity_period", OPT_VALIDITY_PERIOD, 'u', + "Maximum validity discrepancy in seconds"}, + {"status_age", OPT_STATUS_AGE, 'p', "Maximum status age in seconds"}, + {"signkey", OPT_SIGNKEY, 's', "Private key to sign OCSP request with"}, + {"reqout", OPT_REQOUT, 's', "Output file for the DER-encoded request"}, + {"respout", OPT_RESPOUT, 's', "Output file for the DER-encoded response"}, + {"path", OPT_PATH, 's', "Path to use in OCSP request"}, + {"issuer", OPT_ISSUER, '<', "Issuer certificate"}, + {"cert", OPT_CERT, '<', "Certificate to check"}, + {"serial", OPT_SERIAL, 's', "Serial number to check"}, + {"index", OPT_INDEX, '<', "Certificate status index file"}, + {"CA", OPT_CA, '<', "CA certificate"}, + {"nmin", OPT_NMIN, 'p', "Number of minutes before next update"}, + {"nrequest", OPT_REQUEST, 'p', + "Number of requests to accept (default unlimited)"}, + {"ndays", OPT_NDAYS, 'p', "Number of days before next update"}, + {"rsigner", OPT_RSIGNER, '<', + "Responder certificate to sign responses with"}, + {"rkey", OPT_RKEY, '<', "Responder key to sign responses with"}, + {"rother", OPT_ROTHER, '<', "Other certificates to include in response"}, + {"rmd", OPT_RMD, 's', "Digest Algorithm to use in signature of OCSP response"}, + {"header", OPT_HEADER, 's', "key=value header to add"}, + {"", OPT_MD, '-', "Any supported digest algorithm (sha1,sha256, ... )"}, + OPT_V_OPTIONS, + {NULL} +}; + +int ocsp_main(int argc, char **argv) +{ + BIO *acbio = NULL, *cbio = NULL, *derbio = NULL, *out = NULL; + const EVP_MD *cert_id_md = NULL, *rsign_md = NULL; + int trailing_md = 0; + CA_DB *rdb = NULL; + EVP_PKEY *key = NULL, *rkey = NULL; + OCSP_BASICRESP *bs = NULL; + OCSP_REQUEST *req = NULL; + OCSP_RESPONSE *resp = NULL; + STACK_OF(CONF_VALUE) *headers = NULL; + STACK_OF(OCSP_CERTID) *ids = NULL; + STACK_OF(OPENSSL_STRING) *reqnames = NULL; + STACK_OF(X509) *sign_other = NULL, *verify_other = NULL, *rother = NULL; + STACK_OF(X509) *issuers = NULL; + X509 *issuer = NULL, *cert = NULL, *rca_cert = NULL; + X509 *signer = NULL, *rsigner = NULL; + X509_STORE *store = NULL; + X509_VERIFY_PARAM *vpm = NULL; + const char *CAfile = NULL, *CApath = NULL; + char *header, *value; + char *host = NULL, *port = NULL, *path = "/", *outfile = NULL; + char *rca_filename = NULL, *reqin = NULL, *respin = NULL; + char *reqout = NULL, *respout = NULL, *ridx_filename = NULL; + char *rsignfile = NULL, *rkeyfile = NULL; + char *sign_certfile = NULL, *verify_certfile = NULL, *rcertfile = NULL; + char *signfile = NULL, *keyfile = NULL; + char *thost = NULL, *tport = NULL, *tpath = NULL; + int noCAfile = 0, noCApath = 0; + int accept_count = -1, add_nonce = 1, noverify = 0, use_ssl = -1; + int vpmtouched = 0, badsig = 0, i, ignore_err = 0, nmin = 0, ndays = -1; + int req_text = 0, resp_text = 0, ret = 1; +#ifndef OPENSSL_NO_SOCK + int req_timeout = -1; +#endif + long nsec = MAX_VALIDITY_PERIOD, maxage = -1; + unsigned long sign_flags = 0, verify_flags = 0, rflags = 0; + OPTION_CHOICE o; + char *prog; + + reqnames = sk_OPENSSL_STRING_new_null(); + if (!reqnames) + goto end; + ids = sk_OCSP_CERTID_new_null(); + if (!ids) + goto end; + if ((vpm = X509_VERIFY_PARAM_new()) == NULL) + return 1; + + prog = opt_init(argc, argv, ocsp_options); + while ((o = opt_next()) != OPT_EOF) { + switch (o) { + case OPT_EOF: + case OPT_ERR: + opthelp: + BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); + goto end; + case OPT_HELP: + ret = 0; + opt_help(ocsp_options); + goto end; + case OPT_OUTFILE: + outfile = opt_arg(); + break; + case OPT_TIMEOUT: +#ifndef OPENSSL_NO_SOCK + req_timeout = atoi(opt_arg()); +#endif + break; + case OPT_URL: + OPENSSL_free(thost); + OPENSSL_free(tport); + OPENSSL_free(tpath); + thost = tport = tpath = NULL; + if (!OCSP_parse_url(opt_arg(), &host, &port, &path, &use_ssl)) { + BIO_printf(bio_err, "%s Error parsing URL\n", prog); + goto end; + } + thost = host; + tport = port; + tpath = path; + break; + case OPT_HOST: + host = opt_arg(); + break; + case OPT_PORT: + port = opt_arg(); + break; + case OPT_IGNORE_ERR: + ignore_err = 1; + break; + case OPT_NOVERIFY: + noverify = 1; + break; + case OPT_NONCE: + add_nonce = 2; + break; + case OPT_NO_NONCE: + add_nonce = 0; + break; + case OPT_RESP_NO_CERTS: + rflags |= OCSP_NOCERTS; + break; + case OPT_RESP_KEY_ID: + rflags |= OCSP_RESPID_KEY; + break; + case OPT_NO_CERTS: + sign_flags |= OCSP_NOCERTS; + break; + case OPT_NO_SIGNATURE_VERIFY: + verify_flags |= OCSP_NOSIGS; + break; + case OPT_NO_CERT_VERIFY: + verify_flags |= OCSP_NOVERIFY; + break; + case OPT_NO_CHAIN: + verify_flags |= OCSP_NOCHAIN; + break; + case OPT_NO_CERT_CHECKS: + verify_flags |= OCSP_NOCHECKS; + break; + case OPT_NO_EXPLICIT: + verify_flags |= OCSP_NOEXPLICIT; + break; + case OPT_TRUST_OTHER: + verify_flags |= OCSP_TRUSTOTHER; + break; + case OPT_NO_INTERN: + verify_flags |= OCSP_NOINTERN; + break; + case OPT_BADSIG: + badsig = 1; + break; + case OPT_TEXT: + req_text = resp_text = 1; + break; + case OPT_REQ_TEXT: + req_text = 1; + break; + case OPT_RESP_TEXT: + resp_text = 1; + break; + case OPT_REQIN: + reqin = opt_arg(); + break; + case OPT_RESPIN: + respin = opt_arg(); + break; + case OPT_SIGNER: + signfile = opt_arg(); + break; + case OPT_VAFILE: + verify_certfile = opt_arg(); + verify_flags |= OCSP_TRUSTOTHER; + break; + case OPT_SIGN_OTHER: + sign_certfile = opt_arg(); + break; + case OPT_VERIFY_OTHER: + verify_certfile = opt_arg(); + break; + case OPT_CAFILE: + CAfile = opt_arg(); + break; + case OPT_CAPATH: + CApath = opt_arg(); + break; + case OPT_NOCAFILE: + noCAfile = 1; + break; + case OPT_NOCAPATH: + noCApath = 1; + break; + case OPT_V_CASES: + if (!opt_verify(o, vpm)) + goto end; + vpmtouched++; + break; + case OPT_VALIDITY_PERIOD: + opt_long(opt_arg(), &nsec); + break; + case OPT_STATUS_AGE: + opt_long(opt_arg(), &maxage); + break; + case OPT_SIGNKEY: + keyfile = opt_arg(); + break; + case OPT_REQOUT: + reqout = opt_arg(); + break; + case OPT_RESPOUT: + respout = opt_arg(); + break; + case OPT_PATH: + path = opt_arg(); + break; + case OPT_ISSUER: + issuer = load_cert(opt_arg(), FORMAT_PEM, "issuer certificate"); + if (issuer == NULL) + goto end; + if (issuers == NULL) { + if ((issuers = sk_X509_new_null()) == NULL) + goto end; + } + sk_X509_push(issuers, issuer); + break; + case OPT_CERT: + X509_free(cert); + cert = load_cert(opt_arg(), FORMAT_PEM, "certificate"); + if (cert == NULL) + goto end; + if (cert_id_md == NULL) + cert_id_md = EVP_sha1(); + if (!add_ocsp_cert(&req, cert, cert_id_md, issuer, ids)) + goto end; + if (!sk_OPENSSL_STRING_push(reqnames, opt_arg())) + goto end; + trailing_md = 0; + break; + case OPT_SERIAL: + if (cert_id_md == NULL) + cert_id_md = EVP_sha1(); + if (!add_ocsp_serial(&req, opt_arg(), cert_id_md, issuer, ids)) + goto end; + if (!sk_OPENSSL_STRING_push(reqnames, opt_arg())) + goto end; + trailing_md = 0; + break; + case OPT_INDEX: + ridx_filename = opt_arg(); + break; + case OPT_CA: + rca_filename = opt_arg(); + break; + case OPT_NMIN: + opt_int(opt_arg(), &nmin); + if (ndays == -1) + ndays = 0; + break; + case OPT_REQUEST: + opt_int(opt_arg(), &accept_count); + break; + case OPT_NDAYS: + ndays = atoi(opt_arg()); + break; + case OPT_RSIGNER: + rsignfile = opt_arg(); + break; + case OPT_RKEY: + rkeyfile = opt_arg(); + break; + case OPT_ROTHER: + rcertfile = opt_arg(); + break; + case OPT_RMD: /* Response MessageDigest */ + if (!opt_md(opt_arg(), &rsign_md)) + goto end; + break; + case OPT_HEADER: + header = opt_arg(); + value = strchr(header, '='); + if (value == NULL) { + BIO_printf(bio_err, "Missing = in header key=value\n"); + goto opthelp; + } + *value++ = '\0'; + if (!X509V3_add_value(header, value, &headers)) + goto end; + break; + case OPT_MD: + if (trailing_md) { + BIO_printf(bio_err, + "%s: Digest must be before -cert or -serial\n", + prog); + goto opthelp; + } + if (!opt_md(opt_unknown(), &cert_id_md)) + goto opthelp; + trailing_md = 1; + break; + } + } + + if (trailing_md) { + BIO_printf(bio_err, "%s: Digest must be before -cert or -serial\n", + prog); + goto opthelp; + } + argc = opt_num_rest(); + if (argc != 0) + goto opthelp; + + /* Have we anything to do? */ + if (!req && !reqin && !respin && !(port && ridx_filename)) + goto opthelp; + + out = bio_open_default(outfile, 'w', FORMAT_TEXT); + if (out == NULL) + goto end; + + if (!req && (add_nonce != 2)) + add_nonce = 0; + + if (!req && reqin) { + derbio = bio_open_default(reqin, 'r', FORMAT_ASN1); + if (derbio == NULL) + goto end; + req = d2i_OCSP_REQUEST_bio(derbio, NULL); + BIO_free(derbio); + if (!req) { + BIO_printf(bio_err, "Error reading OCSP request\n"); + goto end; + } + } + + if (!req && port) { + acbio = init_responder(port); + if (!acbio) + goto end; + } + + if (rsignfile) { + if (!rkeyfile) + rkeyfile = rsignfile; + rsigner = load_cert(rsignfile, FORMAT_PEM, "responder certificate"); + if (!rsigner) { + BIO_printf(bio_err, "Error loading responder certificate\n"); + goto end; + } + rca_cert = load_cert(rca_filename, FORMAT_PEM, "CA certificate"); + if (rcertfile) { + if (!load_certs(rcertfile, &rother, FORMAT_PEM, NULL, + "responder other certificates")) + goto end; + } + rkey = load_key(rkeyfile, FORMAT_PEM, 0, NULL, NULL, + "responder private key"); + if (!rkey) + goto end; + } + if (acbio) + BIO_printf(bio_err, "Waiting for OCSP client connections...\n"); + + redo_accept: + + if (acbio) { + if (!do_responder(&req, &cbio, acbio)) + goto end; + if (!req) { + resp = + OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, + NULL); + send_ocsp_response(cbio, resp); + goto done_resp; + } + } + + if (!req && (signfile || reqout || host || add_nonce || ridx_filename)) { + BIO_printf(bio_err, "Need an OCSP request for this operation!\n"); + goto end; + } + + if (req && add_nonce) + OCSP_request_add1_nonce(req, NULL, -1); + + if (signfile) { + if (!keyfile) + keyfile = signfile; + signer = load_cert(signfile, FORMAT_PEM, "signer certificate"); + if (!signer) { + BIO_printf(bio_err, "Error loading signer certificate\n"); + goto end; + } + if (sign_certfile) { + if (!load_certs(sign_certfile, &sign_other, FORMAT_PEM, NULL, + "signer certificates")) + goto end; + } + key = load_key(keyfile, FORMAT_PEM, 0, NULL, NULL, + "signer private key"); + if (!key) + goto end; + + if (!OCSP_request_sign + (req, signer, key, NULL, sign_other, sign_flags)) { + BIO_printf(bio_err, "Error signing OCSP request\n"); + goto end; + } + } + + if (req_text && req) + OCSP_REQUEST_print(out, req, 0); + + if (reqout) { + derbio = bio_open_default(reqout, 'w', FORMAT_ASN1); + if (derbio == NULL) + goto end; + i2d_OCSP_REQUEST_bio(derbio, req); + BIO_free(derbio); + } + + if (ridx_filename && (!rkey || !rsigner || !rca_cert)) { + BIO_printf(bio_err, + "Need a responder certificate, key and CA for this operation!\n"); + goto end; + } + + if (ridx_filename && !rdb) { + rdb = load_index(ridx_filename, NULL); + if (!rdb) + goto end; + if (!index_index(rdb)) + goto end; + } + + if (rdb) { + make_ocsp_response(&resp, req, rdb, rca_cert, rsigner, rkey, + rsign_md, rother, rflags, nmin, ndays, badsig); + if (cbio) + send_ocsp_response(cbio, resp); + } else if (host) { +# ifndef OPENSSL_NO_SOCK + resp = process_responder(req, host, path, + port, use_ssl, headers, req_timeout); + if (!resp) + goto end; +# else + BIO_printf(bio_err, + "Error creating connect BIO - sockets not supported.\n"); + goto end; +# endif + } else if (respin) { + derbio = bio_open_default(respin, 'r', FORMAT_ASN1); + if (derbio == NULL) + goto end; + resp = d2i_OCSP_RESPONSE_bio(derbio, NULL); + BIO_free(derbio); + if (!resp) { + BIO_printf(bio_err, "Error reading OCSP response\n"); + goto end; + } + } else { + ret = 0; + goto end; + } + + done_resp: + + if (respout) { + derbio = bio_open_default(respout, 'w', FORMAT_ASN1); + if (derbio == NULL) + goto end; + i2d_OCSP_RESPONSE_bio(derbio, resp); + BIO_free(derbio); + } + + i = OCSP_response_status(resp); + if (i != OCSP_RESPONSE_STATUS_SUCCESSFUL) { + BIO_printf(out, "Responder Error: %s (%d)\n", + OCSP_response_status_str(i), i); + if (ignore_err) + goto redo_accept; + ret = 0; + goto end; + } + + if (resp_text) + OCSP_RESPONSE_print(out, resp, 0); + + /* If running as responder don't verify our own response */ + if (cbio) { + /* If not unlimited, see if we took all we should. */ + if (accept_count != -1 && --accept_count <= 0) { + ret = 0; + goto end; + } + BIO_free_all(cbio); + cbio = NULL; + OCSP_REQUEST_free(req); + req = NULL; + OCSP_RESPONSE_free(resp); + resp = NULL; + goto redo_accept; + } + if (ridx_filename) { + ret = 0; + goto end; + } + + if (!store) { + store = setup_verify(CAfile, CApath, noCAfile, noCApath); + if (!store) + goto end; + } + if (vpmtouched) + X509_STORE_set1_param(store, vpm); + if (verify_certfile) { + if (!load_certs(verify_certfile, &verify_other, FORMAT_PEM, NULL, + "validator certificate")) + goto end; + } + + bs = OCSP_response_get1_basic(resp); + if (!bs) { + BIO_printf(bio_err, "Error parsing response\n"); + goto end; + } + + ret = 0; + + if (!noverify) { + if (req && ((i = OCSP_check_nonce(req, bs)) <= 0)) { + if (i == -1) + BIO_printf(bio_err, "WARNING: no nonce in response\n"); + else { + BIO_printf(bio_err, "Nonce Verify error\n"); + ret = 1; + goto end; + } + } + + i = OCSP_basic_verify(bs, verify_other, store, verify_flags); + if (i <= 0 && issuers) { + i = OCSP_basic_verify(bs, issuers, store, OCSP_TRUSTOTHER); + if (i > 0) + ERR_clear_error(); + } + if (i <= 0) { + BIO_printf(bio_err, "Response Verify Failure\n"); + ERR_print_errors(bio_err); + ret = 1; + } else + BIO_printf(bio_err, "Response verify OK\n"); + + } + + print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage); + + end: + ERR_print_errors(bio_err); + X509_free(signer); + X509_STORE_free(store); + X509_VERIFY_PARAM_free(vpm); + EVP_PKEY_free(key); + EVP_PKEY_free(rkey); + X509_free(cert); + sk_X509_pop_free(issuers, X509_free); + X509_free(rsigner); + X509_free(rca_cert); + free_index(rdb); + BIO_free_all(cbio); + BIO_free_all(acbio); + BIO_free(out); + OCSP_REQUEST_free(req); + OCSP_RESPONSE_free(resp); + OCSP_BASICRESP_free(bs); + sk_OPENSSL_STRING_free(reqnames); + sk_OCSP_CERTID_free(ids); + sk_X509_pop_free(sign_other, X509_free); + sk_X509_pop_free(verify_other, X509_free); + sk_CONF_VALUE_pop_free(headers, X509V3_conf_free); + OPENSSL_free(thost); + OPENSSL_free(tport); + OPENSSL_free(tpath); + + return (ret); +} + +static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, + const EVP_MD *cert_id_md, X509 *issuer, + STACK_OF(OCSP_CERTID) *ids) +{ + OCSP_CERTID *id; + if (!issuer) { + BIO_printf(bio_err, "No issuer certificate specified\n"); + return 0; + } + if (*req == NULL) + *req = OCSP_REQUEST_new(); + if (*req == NULL) + goto err; + id = OCSP_cert_to_id(cert_id_md, cert, issuer); + if (!id || !sk_OCSP_CERTID_push(ids, id)) + goto err; + if (!OCSP_request_add0_id(*req, id)) + goto err; + return 1; + + err: + BIO_printf(bio_err, "Error Creating OCSP request\n"); + return 0; +} + +static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, + const EVP_MD *cert_id_md, X509 *issuer, + STACK_OF(OCSP_CERTID) *ids) +{ + OCSP_CERTID *id; + X509_NAME *iname; + ASN1_BIT_STRING *ikey; + ASN1_INTEGER *sno; + if (!issuer) { + BIO_printf(bio_err, "No issuer certificate specified\n"); + return 0; + } + if (*req == NULL) + *req = OCSP_REQUEST_new(); + if (*req == NULL) + goto err; + iname = X509_get_subject_name(issuer); + ikey = X509_get0_pubkey_bitstr(issuer); + sno = s2i_ASN1_INTEGER(NULL, serial); + if (!sno) { + BIO_printf(bio_err, "Error converting serial number %s\n", serial); + return 0; + } + id = OCSP_cert_id_new(cert_id_md, iname, ikey, sno); + ASN1_INTEGER_free(sno); + if (id == NULL || !sk_OCSP_CERTID_push(ids, id)) + goto err; + if (!OCSP_request_add0_id(*req, id)) + goto err; + return 1; + + err: + BIO_printf(bio_err, "Error Creating OCSP request\n"); + return 0; +} + +static void print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req, + STACK_OF(OPENSSL_STRING) *names, + STACK_OF(OCSP_CERTID) *ids, long nsec, + long maxage) +{ + OCSP_CERTID *id; + const char *name; + int i, status, reason; + ASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd; + + if (!bs || !req || !sk_OPENSSL_STRING_num(names) + || !sk_OCSP_CERTID_num(ids)) + return; + + for (i = 0; i < sk_OCSP_CERTID_num(ids); i++) { + id = sk_OCSP_CERTID_value(ids, i); + name = sk_OPENSSL_STRING_value(names, i); + BIO_printf(out, "%s: ", name); + + if (!OCSP_resp_find_status(bs, id, &status, &reason, + &rev, &thisupd, &nextupd)) { + BIO_puts(out, "ERROR: No Status found.\n"); + continue; + } + + /* + * Check validity: if invalid write to output BIO so we know which + * response this refers to. + */ + if (!OCSP_check_validity(thisupd, nextupd, nsec, maxage)) { + BIO_puts(out, "WARNING: Status times invalid.\n"); + ERR_print_errors(out); + } + BIO_printf(out, "%s\n", OCSP_cert_status_str(status)); + + BIO_puts(out, "\tThis Update: "); + ASN1_GENERALIZEDTIME_print(out, thisupd); + BIO_puts(out, "\n"); + + if (nextupd) { + BIO_puts(out, "\tNext Update: "); + ASN1_GENERALIZEDTIME_print(out, nextupd); + BIO_puts(out, "\n"); + } + + if (status != V_OCSP_CERTSTATUS_REVOKED) + continue; + + if (reason != -1) + BIO_printf(out, "\tReason: %s\n", OCSP_crl_reason_str(reason)); + + BIO_puts(out, "\tRevocation Time: "); + ASN1_GENERALIZEDTIME_print(out, rev); + BIO_puts(out, "\n"); + } +} + +static void make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, + CA_DB *db, X509 *ca, X509 *rcert, + EVP_PKEY *rkey, const EVP_MD *rmd, + STACK_OF(X509) *rother, unsigned long flags, + int nmin, int ndays, int badsig) +{ + ASN1_TIME *thisupd = NULL, *nextupd = NULL; + OCSP_CERTID *cid, *ca_id = NULL; + OCSP_BASICRESP *bs = NULL; + int i, id_count; + + id_count = OCSP_request_onereq_count(req); + + if (id_count <= 0) { + *resp = + OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL); + goto end; + } + + bs = OCSP_BASICRESP_new(); + thisupd = X509_gmtime_adj(NULL, 0); + if (ndays != -1) + nextupd = X509_time_adj_ex(NULL, ndays, nmin * 60, NULL); + + /* Examine each certificate id in the request */ + for (i = 0; i < id_count; i++) { + OCSP_ONEREQ *one; + ASN1_INTEGER *serial; + char **inf; + ASN1_OBJECT *cert_id_md_oid; + const EVP_MD *cert_id_md; + one = OCSP_request_onereq_get0(req, i); + cid = OCSP_onereq_get0_id(one); + + OCSP_id_get0_info(NULL, &cert_id_md_oid, NULL, NULL, cid); + + cert_id_md = EVP_get_digestbyobj(cert_id_md_oid); + if (!cert_id_md) { + *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_INTERNALERROR, + NULL); + goto end; + } + OCSP_CERTID_free(ca_id); + ca_id = OCSP_cert_to_id(cert_id_md, NULL, ca); + + /* Is this request about our CA? */ + if (OCSP_id_issuer_cmp(ca_id, cid)) { + OCSP_basic_add1_status(bs, cid, + V_OCSP_CERTSTATUS_UNKNOWN, + 0, NULL, thisupd, nextupd); + continue; + } + OCSP_id_get0_info(NULL, NULL, NULL, &serial, cid); + inf = lookup_serial(db, serial); + if (!inf) + OCSP_basic_add1_status(bs, cid, + V_OCSP_CERTSTATUS_UNKNOWN, + 0, NULL, thisupd, nextupd); + else if (inf[DB_type][0] == DB_TYPE_VAL) + OCSP_basic_add1_status(bs, cid, + V_OCSP_CERTSTATUS_GOOD, + 0, NULL, thisupd, nextupd); + else if (inf[DB_type][0] == DB_TYPE_REV) { + ASN1_OBJECT *inst = NULL; + ASN1_TIME *revtm = NULL; + ASN1_GENERALIZEDTIME *invtm = NULL; + OCSP_SINGLERESP *single; + int reason = -1; + unpack_revinfo(&revtm, &reason, &inst, &invtm, inf[DB_rev_date]); + single = OCSP_basic_add1_status(bs, cid, + V_OCSP_CERTSTATUS_REVOKED, + reason, revtm, thisupd, nextupd); + if (invtm) + OCSP_SINGLERESP_add1_ext_i2d(single, NID_invalidity_date, + invtm, 0, 0); + else if (inst) + OCSP_SINGLERESP_add1_ext_i2d(single, + NID_hold_instruction_code, inst, + 0, 0); + ASN1_OBJECT_free(inst); + ASN1_TIME_free(revtm); + ASN1_GENERALIZEDTIME_free(invtm); + } + } + + OCSP_copy_nonce(bs, req); + + OCSP_basic_sign(bs, rcert, rkey, rmd, rother, flags); + + if (badsig) { + const ASN1_OCTET_STRING *sig = OCSP_resp_get0_signature(bs); + corrupt_signature(sig); + } + + *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_SUCCESSFUL, bs); + + end: + ASN1_TIME_free(thisupd); + ASN1_TIME_free(nextupd); + OCSP_CERTID_free(ca_id); + OCSP_BASICRESP_free(bs); +} + +static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser) +{ + 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); + OPENSSL_assert(bn); /* FIXME: should report an error at this + * point and abort */ + if (BN_is_zero(bn)) + itmp = OPENSSL_strdup("00"); + else + itmp = BN_bn2hex(bn); + row[DB_serial] = itmp; + BN_free(bn); + 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 BIO *init_responder(const char *port) +{ +# ifdef OPENSSL_NO_SOCK + BIO_printf(bio_err, + "Error setting up accept BIO - sockets not supported.\n"); + return NULL; +# else + BIO *acbio = NULL, *bufbio = NULL; + + bufbio = BIO_new(BIO_f_buffer()); + if (bufbio == NULL) + goto err; + acbio = BIO_new(BIO_s_accept()); + if (acbio == NULL + || BIO_set_bind_mode(acbio, BIO_BIND_REUSEADDR) < 0 + || BIO_set_accept_port(acbio, port) < 0) { + BIO_printf(bio_err, "Error setting up accept BIO\n"); + ERR_print_errors(bio_err); + goto err; + } + + BIO_set_accept_bios(acbio, bufbio); + bufbio = NULL; + if (BIO_do_accept(acbio) <= 0) { + BIO_printf(bio_err, "Error starting accept\n"); + ERR_print_errors(bio_err); + goto err; + } + + return acbio; + + err: + BIO_free_all(acbio); + BIO_free(bufbio); + return NULL; +# endif +} + +# ifndef OPENSSL_NO_SOCK +/* + * Decode %xx URL-decoding in-place. Ignores mal-formed sequences. + */ +static int urldecode(char *p) +{ + unsigned char *out = (unsigned char *)p; + unsigned char *save = out; + + for (; *p; p++) { + if (*p != '%') + *out++ = *p; + else if (isxdigit(_UC(p[1])) && isxdigit(_UC(p[2]))) { + /* Don't check, can't fail because of ixdigit() call. */ + *out++ = (OPENSSL_hexchar2int(p[1]) << 4) + | OPENSSL_hexchar2int(p[2]); + p += 2; + } + else + return -1; + } + *out = '\0'; + return (int)(out - save); +} +# endif + +static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio) +{ +# ifdef OPENSSL_NO_SOCK + return 0; +# else + int len; + OCSP_REQUEST *req = NULL; + char inbuf[2048], reqbuf[2048]; + char *p, *q; + BIO *cbio = NULL, *getbio = NULL, *b64 = 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; + + /* Read the request line. */ + len = BIO_gets(cbio, reqbuf, sizeof(reqbuf)); + if (len <= 0) + return 1; + if (strncmp(reqbuf, "GET ", 4) == 0) { + /* Expecting GET {sp} /URL {sp} HTTP/1.x */ + for (p = reqbuf + 4; *p == ' '; ++p) + continue; + if (*p != '/') { + BIO_printf(bio_err, "Invalid request -- bad URL\n"); + return 1; + } + p++; + + /* Splice off the HTTP version identifier. */ + for (q = p; *q; q++) + if (*q == ' ') + break; + if (strncmp(q, " HTTP/1.", 8) != 0) { + BIO_printf(bio_err, "Invalid request -- bad HTTP vesion\n"); + return 1; + } + *q = '\0'; + len = urldecode(p); + if (len <= 0) { + BIO_printf(bio_err, "Invalid request -- bad URL encoding\n"); + return 1; + } + if ((getbio = BIO_new_mem_buf(p, len)) == NULL + || (b64 = BIO_new(BIO_f_base64())) == NULL) { + BIO_printf(bio_err, "Could not allocate memory\n"); + ERR_print_errors(bio_err); + return 1; + } + BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL); + getbio = BIO_push(b64, getbio); + } else if (strncmp(reqbuf, "POST ", 5) != 0) { + BIO_printf(bio_err, "Invalid request -- bad HTTP verb\n"); + return 1; + } + + /* Read and skip past the headers. */ + for (;;) { + len = BIO_gets(cbio, inbuf, sizeof(inbuf)); + if (len <= 0) + return 1; + if ((inbuf[0] == '\r') || (inbuf[0] == '\n')) + break; + } + + /* Try to read OCSP request */ + if (getbio) { + req = d2i_OCSP_REQUEST_bio(getbio, NULL); + BIO_free_all(getbio); + } else + 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; +# endif +} + +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); + (void)BIO_flush(cbio); + return 1; +} + +# ifndef OPENSSL_NO_SOCK +static OCSP_RESPONSE *query_responder(BIO *cbio, const char *host, + const char *path, + const STACK_OF(CONF_VALUE) *headers, + OCSP_REQUEST *req, int req_timeout) +{ + int fd; + int rv; + int i; + int add_host = 1; + 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(bio_err, "Error connecting BIO\n"); + return NULL; + } + + if (BIO_get_fd(cbio, &fd) < 0) { + BIO_puts(bio_err, "Can't get connection fd\n"); + goto err; + } + + if (req_timeout != -1 && 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(bio_err, "Timeout on connect\n"); + return NULL; + } + } + + ctx = OCSP_sendreq_new(cbio, path, NULL, -1); + if (ctx == NULL) + return NULL; + + for (i = 0; i < sk_CONF_VALUE_num(headers); i++) { + CONF_VALUE *hdr = sk_CONF_VALUE_value(headers, i); + if (add_host == 1 && strcasecmp("host", hdr->name) == 0) + add_host = 0; + if (!OCSP_REQ_CTX_add1_header(ctx, hdr->name, hdr->value)) + goto err; + } + + if (add_host == 1 && OCSP_REQ_CTX_add1_header(ctx, "Host", host) == 0) + goto err; + + if (!OCSP_REQ_CTX_set1_req(ctx, req)) + goto err; + + for (;;) { + rv = OCSP_sendreq_nbio(&rsp, ctx); + if (rv != -1) + break; + if (req_timeout == -1) + continue; + 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(bio_err, "Unexpected retry condition\n"); + goto err; + } + if (rv == 0) { + BIO_puts(bio_err, "Timeout on request\n"); + break; + } + if (rv == -1) { + BIO_puts(bio_err, "Select error\n"); + break; + } + + } + err: + OCSP_REQ_CTX_free(ctx); + + return rsp; +} + +OCSP_RESPONSE *process_responder(OCSP_REQUEST *req, + const char *host, const char *path, + const char *port, int use_ssl, + STACK_OF(CONF_VALUE) *headers, + int req_timeout) +{ + BIO *cbio = NULL; + SSL_CTX *ctx = NULL; + OCSP_RESPONSE *resp = NULL; + + 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(TLS_client_method()); + 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); + } + + resp = query_responder(cbio, host, path, headers, req, req_timeout); + if (!resp) + BIO_printf(bio_err, "Error querying OCSP responder\n"); + end: + BIO_free_all(cbio); + SSL_CTX_free(ctx); + return resp; +} +# endif + +#endif |