lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2001-2022 The OpenSSL Project Authors. All Rights Reserved. |
| 3 | * |
| 4 | * Licensed under the OpenSSL license (the "License"). You may not use |
| 5 | * this file except in compliance with the License. You can obtain a copy |
| 6 | * in the file LICENSE in the source distribution or at |
| 7 | * https://www.openssl.org/source/license.html |
| 8 | */ |
| 9 | |
| 10 | #include <openssl/opensslconf.h> |
| 11 | |
| 12 | #ifdef OPENSSL_SYS_VMS |
| 13 | # define _XOPEN_SOURCE_EXTENDED/* So fd_set and friends get properly defined |
| 14 | * on OpenVMS */ |
| 15 | #endif |
| 16 | |
| 17 | #include <stdio.h> |
| 18 | #include <stdlib.h> |
| 19 | #include <string.h> |
| 20 | #include <time.h> |
| 21 | #include <ctype.h> |
| 22 | |
| 23 | /* Needs to be included before the openssl headers */ |
| 24 | #include "apps.h" |
| 25 | #include "progs.h" |
| 26 | #include "internal/sockets.h" |
| 27 | #include <openssl/e_os2.h> |
| 28 | #include <openssl/crypto.h> |
| 29 | #include <openssl/err.h> |
| 30 | #include <openssl/ssl.h> |
| 31 | #include <openssl/evp.h> |
| 32 | #include <openssl/bn.h> |
| 33 | #include <openssl/x509v3.h> |
| 34 | #include <openssl/rand.h> |
| 35 | |
| 36 | #ifndef HAVE_FORK |
| 37 | #if defined(OPENSSL_SYS_VMS) || defined(OPENSSL_SYS_WINDOWS) |
| 38 | # define HAVE_FORK 0 |
| 39 | #else |
| 40 | # define HAVE_FORK 1 |
| 41 | #endif |
| 42 | #endif |
| 43 | |
| 44 | #if HAVE_FORK |
| 45 | #undef NO_FORK |
| 46 | #else |
| 47 | #define NO_FORK |
| 48 | #endif |
| 49 | |
| 50 | #if !defined(NO_FORK) && !defined(OPENSSL_NO_SOCK) \ |
| 51 | && !defined(OPENSSL_NO_POSIX_IO) |
| 52 | # define OCSP_DAEMON |
| 53 | # include <sys/types.h> |
| 54 | # include <sys/wait.h> |
| 55 | # include <syslog.h> |
| 56 | # include <signal.h> |
| 57 | # define MAXERRLEN 1000 /* limit error text sent to syslog to 1000 bytes */ |
| 58 | #else |
| 59 | # undef LOG_INFO |
| 60 | # undef LOG_WARNING |
| 61 | # undef LOG_ERR |
| 62 | # define LOG_INFO 0 |
| 63 | # define LOG_WARNING 1 |
| 64 | # define LOG_ERR 2 |
| 65 | #endif |
| 66 | |
| 67 | #if defined(OPENSSL_SYS_VXWORKS) |
| 68 | /* not supported */ |
| 69 | int setpgid(pid_t pid, pid_t pgid) |
| 70 | { |
| 71 | errno = ENOSYS; |
| 72 | return 0; |
| 73 | } |
| 74 | /* not supported */ |
| 75 | pid_t fork(void) |
| 76 | { |
| 77 | errno = ENOSYS; |
| 78 | return (pid_t) -1; |
| 79 | } |
| 80 | #endif |
| 81 | /* Maximum leeway in validity period: default 5 minutes */ |
| 82 | #define MAX_VALIDITY_PERIOD (5 * 60) |
| 83 | |
| 84 | static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, |
| 85 | const EVP_MD *cert_id_md, X509 *issuer, |
| 86 | STACK_OF(OCSP_CERTID) *ids); |
| 87 | static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, |
| 88 | const EVP_MD *cert_id_md, X509 *issuer, |
| 89 | STACK_OF(OCSP_CERTID) *ids); |
| 90 | static void print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req, |
| 91 | STACK_OF(OPENSSL_STRING) *names, |
| 92 | STACK_OF(OCSP_CERTID) *ids, long nsec, |
| 93 | long maxage); |
| 94 | static void make_ocsp_response(BIO *err, OCSP_RESPONSE **resp, OCSP_REQUEST *req, |
| 95 | CA_DB *db, STACK_OF(X509) *ca, X509 *rcert, |
| 96 | EVP_PKEY *rkey, const EVP_MD *md, |
| 97 | STACK_OF(OPENSSL_STRING) *sigopts, |
| 98 | STACK_OF(X509) *rother, unsigned long flags, |
| 99 | int nmin, int ndays, int badsig); |
| 100 | |
| 101 | static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser); |
| 102 | static BIO *init_responder(const char *port); |
| 103 | static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, int timeout); |
| 104 | static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp); |
| 105 | static void log_message(int level, const char *fmt, ...); |
| 106 | static char *prog; |
| 107 | static int multi = 0; |
| 108 | |
| 109 | #ifdef OCSP_DAEMON |
| 110 | static int acfd = (int) INVALID_SOCKET; |
| 111 | static int index_changed(CA_DB *); |
| 112 | static void spawn_loop(void); |
| 113 | static int print_syslog(const char *str, size_t len, void *levPtr); |
| 114 | static void socket_timeout(int signum); |
| 115 | #endif |
| 116 | |
| 117 | #ifndef OPENSSL_NO_SOCK |
| 118 | static OCSP_RESPONSE *query_responder(BIO *cbio, const char *host, |
| 119 | const char *path, |
| 120 | const STACK_OF(CONF_VALUE) *headers, |
| 121 | OCSP_REQUEST *req, int req_timeout); |
| 122 | #endif |
| 123 | |
| 124 | typedef enum OPTION_choice { |
| 125 | OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, |
| 126 | OPT_OUTFILE, OPT_TIMEOUT, OPT_URL, OPT_HOST, OPT_PORT, |
| 127 | OPT_IGNORE_ERR, OPT_NOVERIFY, OPT_NONCE, OPT_NO_NONCE, |
| 128 | OPT_RESP_NO_CERTS, OPT_RESP_KEY_ID, OPT_NO_CERTS, |
| 129 | OPT_NO_SIGNATURE_VERIFY, OPT_NO_CERT_VERIFY, OPT_NO_CHAIN, |
| 130 | OPT_NO_CERT_CHECKS, OPT_NO_EXPLICIT, OPT_TRUST_OTHER, |
| 131 | OPT_NO_INTERN, OPT_BADSIG, OPT_TEXT, OPT_REQ_TEXT, OPT_RESP_TEXT, |
| 132 | OPT_REQIN, OPT_RESPIN, OPT_SIGNER, OPT_VAFILE, OPT_SIGN_OTHER, |
| 133 | OPT_VERIFY_OTHER, OPT_CAFILE, OPT_CAPATH, OPT_NOCAFILE, OPT_NOCAPATH, |
| 134 | OPT_VALIDITY_PERIOD, OPT_STATUS_AGE, OPT_SIGNKEY, OPT_REQOUT, |
| 135 | OPT_RESPOUT, OPT_PATH, OPT_ISSUER, OPT_CERT, OPT_SERIAL, |
| 136 | OPT_INDEX, OPT_CA, OPT_NMIN, OPT_REQUEST, OPT_NDAYS, OPT_RSIGNER, |
| 137 | OPT_RKEY, OPT_ROTHER, OPT_RMD, OPT_RSIGOPT, OPT_HEADER, |
| 138 | OPT_V_ENUM, |
| 139 | OPT_MD, |
| 140 | OPT_MULTI |
| 141 | } OPTION_CHOICE; |
| 142 | |
| 143 | const OPTIONS ocsp_options[] = { |
| 144 | {"help", OPT_HELP, '-', "Display this summary"}, |
| 145 | {"out", OPT_OUTFILE, '>', "Output filename"}, |
| 146 | {"timeout", OPT_TIMEOUT, 'p', |
| 147 | "Connection timeout (in seconds) to the OCSP responder"}, |
| 148 | {"url", OPT_URL, 's', "Responder URL"}, |
| 149 | {"host", OPT_HOST, 's', "TCP/IP hostname:port to connect to"}, |
| 150 | {"port", OPT_PORT, 'p', "Port to run responder on"}, |
| 151 | {"ignore_err", OPT_IGNORE_ERR, '-', |
| 152 | "Ignore error on OCSP request or response and continue running"}, |
| 153 | {"noverify", OPT_NOVERIFY, '-', "Don't verify response at all"}, |
| 154 | {"nonce", OPT_NONCE, '-', "Add OCSP nonce to request"}, |
| 155 | {"no_nonce", OPT_NO_NONCE, '-', "Don't add OCSP nonce to request"}, |
| 156 | {"resp_no_certs", OPT_RESP_NO_CERTS, '-', |
| 157 | "Don't include any certificates in response"}, |
| 158 | {"resp_key_id", OPT_RESP_KEY_ID, '-', |
| 159 | "Identify response by signing certificate key ID"}, |
| 160 | #ifdef OCSP_DAEMON |
| 161 | {"multi", OPT_MULTI, 'p', "run multiple responder processes"}, |
| 162 | #endif |
| 163 | {"no_certs", OPT_NO_CERTS, '-', |
| 164 | "Don't include any certificates in signed request"}, |
| 165 | {"no_signature_verify", OPT_NO_SIGNATURE_VERIFY, '-', |
| 166 | "Don't check signature on response"}, |
| 167 | {"no_cert_verify", OPT_NO_CERT_VERIFY, '-', |
| 168 | "Don't check signing certificate"}, |
| 169 | {"no_chain", OPT_NO_CHAIN, '-', "Don't chain verify response"}, |
| 170 | {"no_cert_checks", OPT_NO_CERT_CHECKS, '-', |
| 171 | "Don't do additional checks on signing certificate"}, |
| 172 | {"no_explicit", OPT_NO_EXPLICIT, '-', |
| 173 | "Do not explicitly check the chain, just verify the root"}, |
| 174 | {"trust_other", OPT_TRUST_OTHER, '-', |
| 175 | "Don't verify additional certificates"}, |
| 176 | {"no_intern", OPT_NO_INTERN, '-', |
| 177 | "Don't search certificates contained in response for signer"}, |
| 178 | {"badsig", OPT_BADSIG, '-', |
| 179 | "Corrupt last byte of loaded OCSP response signature (for test)"}, |
| 180 | {"text", OPT_TEXT, '-', "Print text form of request and response"}, |
| 181 | {"req_text", OPT_REQ_TEXT, '-', "Print text form of request"}, |
| 182 | {"resp_text", OPT_RESP_TEXT, '-', "Print text form of response"}, |
| 183 | {"reqin", OPT_REQIN, 's', "File with the DER-encoded request"}, |
| 184 | {"respin", OPT_RESPIN, 's', "File with the DER-encoded response"}, |
| 185 | {"signer", OPT_SIGNER, '<', "Certificate to sign OCSP request with"}, |
| 186 | {"VAfile", OPT_VAFILE, '<', "Validator certificates file"}, |
| 187 | {"sign_other", OPT_SIGN_OTHER, '<', |
| 188 | "Additional certificates to include in signed request"}, |
| 189 | {"verify_other", OPT_VERIFY_OTHER, '<', |
| 190 | "Additional certificates to search for signer"}, |
| 191 | {"CAfile", OPT_CAFILE, '<', "Trusted certificates file"}, |
| 192 | {"CApath", OPT_CAPATH, '<', "Trusted certificates directory"}, |
| 193 | {"no-CAfile", OPT_NOCAFILE, '-', |
| 194 | "Do not load the default certificates file"}, |
| 195 | {"no-CApath", OPT_NOCAPATH, '-', |
| 196 | "Do not load certificates from the default certificates directory"}, |
| 197 | {"validity_period", OPT_VALIDITY_PERIOD, 'u', |
| 198 | "Maximum validity discrepancy in seconds"}, |
| 199 | {"status_age", OPT_STATUS_AGE, 'p', "Maximum status age in seconds"}, |
| 200 | {"signkey", OPT_SIGNKEY, 's', "Private key to sign OCSP request with"}, |
| 201 | {"reqout", OPT_REQOUT, 's', "Output file for the DER-encoded request"}, |
| 202 | {"respout", OPT_RESPOUT, 's', "Output file for the DER-encoded response"}, |
| 203 | {"path", OPT_PATH, 's', "Path to use in OCSP request"}, |
| 204 | {"issuer", OPT_ISSUER, '<', "Issuer certificate"}, |
| 205 | {"cert", OPT_CERT, '<', "Certificate to check"}, |
| 206 | {"serial", OPT_SERIAL, 's', "Serial number to check"}, |
| 207 | {"index", OPT_INDEX, '<', "Certificate status index file"}, |
| 208 | {"CA", OPT_CA, '<', "CA certificate"}, |
| 209 | {"nmin", OPT_NMIN, 'p', "Number of minutes before next update"}, |
| 210 | {"nrequest", OPT_REQUEST, 'p', |
| 211 | "Number of requests to accept (default unlimited)"}, |
| 212 | {"ndays", OPT_NDAYS, 'p', "Number of days before next update"}, |
| 213 | {"rsigner", OPT_RSIGNER, '<', |
| 214 | "Responder certificate to sign responses with"}, |
| 215 | {"rkey", OPT_RKEY, '<', "Responder key to sign responses with"}, |
| 216 | {"rother", OPT_ROTHER, '<', "Other certificates to include in response"}, |
| 217 | {"rmd", OPT_RMD, 's', "Digest Algorithm to use in signature of OCSP response"}, |
| 218 | {"rsigopt", OPT_RSIGOPT, 's', "OCSP response signature parameter in n:v form"}, |
| 219 | {"header", OPT_HEADER, 's', "key=value header to add"}, |
| 220 | {"", OPT_MD, '-', "Any supported digest algorithm (sha1,sha256, ... )"}, |
| 221 | OPT_V_OPTIONS, |
| 222 | {NULL} |
| 223 | }; |
| 224 | |
| 225 | int ocsp_main(int argc, char **argv) |
| 226 | { |
| 227 | BIO *acbio = NULL, *cbio = NULL, *derbio = NULL, *out = NULL; |
| 228 | const EVP_MD *cert_id_md = NULL, *rsign_md = NULL; |
| 229 | STACK_OF(OPENSSL_STRING) *rsign_sigopts = NULL; |
| 230 | int trailing_md = 0; |
| 231 | CA_DB *rdb = NULL; |
| 232 | EVP_PKEY *key = NULL, *rkey = NULL; |
| 233 | OCSP_BASICRESP *bs = NULL; |
| 234 | OCSP_REQUEST *req = NULL; |
| 235 | OCSP_RESPONSE *resp = NULL; |
| 236 | STACK_OF(CONF_VALUE) *headers = NULL; |
| 237 | STACK_OF(OCSP_CERTID) *ids = NULL; |
| 238 | STACK_OF(OPENSSL_STRING) *reqnames = NULL; |
| 239 | STACK_OF(X509) *sign_other = NULL, *verify_other = NULL, *rother = NULL; |
| 240 | STACK_OF(X509) *issuers = NULL; |
| 241 | X509 *issuer = NULL, *cert = NULL; |
| 242 | STACK_OF(X509) *rca_cert = NULL; |
| 243 | X509 *signer = NULL, *rsigner = NULL; |
| 244 | X509_STORE *store = NULL; |
| 245 | X509_VERIFY_PARAM *vpm = NULL; |
| 246 | const char *CAfile = NULL, *CApath = NULL; |
| 247 | char *header, *value; |
| 248 | char *host = NULL, *port = NULL, *path = "/", *outfile = NULL; |
| 249 | char *rca_filename = NULL, *reqin = NULL, *respin = NULL; |
| 250 | char *reqout = NULL, *respout = NULL, *ridx_filename = NULL; |
| 251 | char *rsignfile = NULL, *rkeyfile = NULL; |
| 252 | char *sign_certfile = NULL, *verify_certfile = NULL, *rcertfile = NULL; |
| 253 | char *signfile = NULL, *keyfile = NULL; |
| 254 | char *thost = NULL, *tport = NULL, *tpath = NULL; |
| 255 | int noCAfile = 0, noCApath = 0; |
| 256 | int accept_count = -1, add_nonce = 1, noverify = 0, use_ssl = -1; |
| 257 | int vpmtouched = 0, badsig = 0, i, ignore_err = 0, nmin = 0, ndays = -1; |
| 258 | int req_text = 0, resp_text = 0, ret = 1; |
| 259 | int req_timeout = -1; |
| 260 | long nsec = MAX_VALIDITY_PERIOD, maxage = -1; |
| 261 | unsigned long sign_flags = 0, verify_flags = 0, rflags = 0; |
| 262 | OPTION_CHOICE o; |
| 263 | |
| 264 | reqnames = sk_OPENSSL_STRING_new_null(); |
| 265 | if (reqnames == NULL) |
| 266 | goto end; |
| 267 | ids = sk_OCSP_CERTID_new_null(); |
| 268 | if (ids == NULL) |
| 269 | goto end; |
| 270 | if ((vpm = X509_VERIFY_PARAM_new()) == NULL) |
| 271 | return 1; |
| 272 | |
| 273 | prog = opt_init(argc, argv, ocsp_options); |
| 274 | while ((o = opt_next()) != OPT_EOF) { |
| 275 | switch (o) { |
| 276 | case OPT_EOF: |
| 277 | case OPT_ERR: |
| 278 | opthelp: |
| 279 | BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); |
| 280 | goto end; |
| 281 | case OPT_HELP: |
| 282 | ret = 0; |
| 283 | opt_help(ocsp_options); |
| 284 | goto end; |
| 285 | case OPT_OUTFILE: |
| 286 | outfile = opt_arg(); |
| 287 | break; |
| 288 | case OPT_TIMEOUT: |
| 289 | #ifndef OPENSSL_NO_SOCK |
| 290 | req_timeout = atoi(opt_arg()); |
| 291 | #endif |
| 292 | break; |
| 293 | case OPT_URL: |
| 294 | OPENSSL_free(thost); |
| 295 | OPENSSL_free(tport); |
| 296 | OPENSSL_free(tpath); |
| 297 | thost = tport = tpath = NULL; |
| 298 | if (!OCSP_parse_url(opt_arg(), &host, &port, &path, &use_ssl)) { |
| 299 | BIO_printf(bio_err, "%s Error parsing URL\n", prog); |
| 300 | goto end; |
| 301 | } |
| 302 | thost = host; |
| 303 | tport = port; |
| 304 | tpath = path; |
| 305 | break; |
| 306 | case OPT_HOST: |
| 307 | host = opt_arg(); |
| 308 | break; |
| 309 | case OPT_PORT: |
| 310 | port = opt_arg(); |
| 311 | break; |
| 312 | case OPT_IGNORE_ERR: |
| 313 | ignore_err = 1; |
| 314 | break; |
| 315 | case OPT_NOVERIFY: |
| 316 | noverify = 1; |
| 317 | break; |
| 318 | case OPT_NONCE: |
| 319 | add_nonce = 2; |
| 320 | break; |
| 321 | case OPT_NO_NONCE: |
| 322 | add_nonce = 0; |
| 323 | break; |
| 324 | case OPT_RESP_NO_CERTS: |
| 325 | rflags |= OCSP_NOCERTS; |
| 326 | break; |
| 327 | case OPT_RESP_KEY_ID: |
| 328 | rflags |= OCSP_RESPID_KEY; |
| 329 | break; |
| 330 | case OPT_NO_CERTS: |
| 331 | sign_flags |= OCSP_NOCERTS; |
| 332 | break; |
| 333 | case OPT_NO_SIGNATURE_VERIFY: |
| 334 | verify_flags |= OCSP_NOSIGS; |
| 335 | break; |
| 336 | case OPT_NO_CERT_VERIFY: |
| 337 | verify_flags |= OCSP_NOVERIFY; |
| 338 | break; |
| 339 | case OPT_NO_CHAIN: |
| 340 | verify_flags |= OCSP_NOCHAIN; |
| 341 | break; |
| 342 | case OPT_NO_CERT_CHECKS: |
| 343 | verify_flags |= OCSP_NOCHECKS; |
| 344 | break; |
| 345 | case OPT_NO_EXPLICIT: |
| 346 | verify_flags |= OCSP_NOEXPLICIT; |
| 347 | break; |
| 348 | case OPT_TRUST_OTHER: |
| 349 | verify_flags |= OCSP_TRUSTOTHER; |
| 350 | break; |
| 351 | case OPT_NO_INTERN: |
| 352 | verify_flags |= OCSP_NOINTERN; |
| 353 | break; |
| 354 | case OPT_BADSIG: |
| 355 | badsig = 1; |
| 356 | break; |
| 357 | case OPT_TEXT: |
| 358 | req_text = resp_text = 1; |
| 359 | break; |
| 360 | case OPT_REQ_TEXT: |
| 361 | req_text = 1; |
| 362 | break; |
| 363 | case OPT_RESP_TEXT: |
| 364 | resp_text = 1; |
| 365 | break; |
| 366 | case OPT_REQIN: |
| 367 | reqin = opt_arg(); |
| 368 | break; |
| 369 | case OPT_RESPIN: |
| 370 | respin = opt_arg(); |
| 371 | break; |
| 372 | case OPT_SIGNER: |
| 373 | signfile = opt_arg(); |
| 374 | break; |
| 375 | case OPT_VAFILE: |
| 376 | verify_certfile = opt_arg(); |
| 377 | verify_flags |= OCSP_TRUSTOTHER; |
| 378 | break; |
| 379 | case OPT_SIGN_OTHER: |
| 380 | sign_certfile = opt_arg(); |
| 381 | break; |
| 382 | case OPT_VERIFY_OTHER: |
| 383 | verify_certfile = opt_arg(); |
| 384 | break; |
| 385 | case OPT_CAFILE: |
| 386 | CAfile = opt_arg(); |
| 387 | break; |
| 388 | case OPT_CAPATH: |
| 389 | CApath = opt_arg(); |
| 390 | break; |
| 391 | case OPT_NOCAFILE: |
| 392 | noCAfile = 1; |
| 393 | break; |
| 394 | case OPT_NOCAPATH: |
| 395 | noCApath = 1; |
| 396 | break; |
| 397 | case OPT_V_CASES: |
| 398 | if (!opt_verify(o, vpm)) |
| 399 | goto end; |
| 400 | vpmtouched++; |
| 401 | break; |
| 402 | case OPT_VALIDITY_PERIOD: |
| 403 | opt_long(opt_arg(), &nsec); |
| 404 | break; |
| 405 | case OPT_STATUS_AGE: |
| 406 | opt_long(opt_arg(), &maxage); |
| 407 | break; |
| 408 | case OPT_SIGNKEY: |
| 409 | keyfile = opt_arg(); |
| 410 | break; |
| 411 | case OPT_REQOUT: |
| 412 | reqout = opt_arg(); |
| 413 | break; |
| 414 | case OPT_RESPOUT: |
| 415 | respout = opt_arg(); |
| 416 | break; |
| 417 | case OPT_PATH: |
| 418 | path = opt_arg(); |
| 419 | break; |
| 420 | case OPT_ISSUER: |
| 421 | issuer = load_cert(opt_arg(), FORMAT_PEM, "issuer certificate"); |
| 422 | if (issuer == NULL) |
| 423 | goto end; |
| 424 | if (issuers == NULL) { |
| 425 | if ((issuers = sk_X509_new_null()) == NULL) |
| 426 | goto end; |
| 427 | } |
| 428 | sk_X509_push(issuers, issuer); |
| 429 | break; |
| 430 | case OPT_CERT: |
| 431 | X509_free(cert); |
| 432 | cert = load_cert(opt_arg(), FORMAT_PEM, "certificate"); |
| 433 | if (cert == NULL) |
| 434 | goto end; |
| 435 | if (cert_id_md == NULL) |
| 436 | cert_id_md = EVP_sha1(); |
| 437 | if (!add_ocsp_cert(&req, cert, cert_id_md, issuer, ids)) |
| 438 | goto end; |
| 439 | if (!sk_OPENSSL_STRING_push(reqnames, opt_arg())) |
| 440 | goto end; |
| 441 | trailing_md = 0; |
| 442 | break; |
| 443 | case OPT_SERIAL: |
| 444 | if (cert_id_md == NULL) |
| 445 | cert_id_md = EVP_sha1(); |
| 446 | if (!add_ocsp_serial(&req, opt_arg(), cert_id_md, issuer, ids)) |
| 447 | goto end; |
| 448 | if (!sk_OPENSSL_STRING_push(reqnames, opt_arg())) |
| 449 | goto end; |
| 450 | trailing_md = 0; |
| 451 | break; |
| 452 | case OPT_INDEX: |
| 453 | ridx_filename = opt_arg(); |
| 454 | break; |
| 455 | case OPT_CA: |
| 456 | rca_filename = opt_arg(); |
| 457 | break; |
| 458 | case OPT_NMIN: |
| 459 | opt_int(opt_arg(), &nmin); |
| 460 | if (ndays == -1) |
| 461 | ndays = 0; |
| 462 | break; |
| 463 | case OPT_REQUEST: |
| 464 | opt_int(opt_arg(), &accept_count); |
| 465 | break; |
| 466 | case OPT_NDAYS: |
| 467 | ndays = atoi(opt_arg()); |
| 468 | break; |
| 469 | case OPT_RSIGNER: |
| 470 | rsignfile = opt_arg(); |
| 471 | break; |
| 472 | case OPT_RKEY: |
| 473 | rkeyfile = opt_arg(); |
| 474 | break; |
| 475 | case OPT_ROTHER: |
| 476 | rcertfile = opt_arg(); |
| 477 | break; |
| 478 | case OPT_RMD: /* Response MessageDigest */ |
| 479 | if (!opt_md(opt_arg(), &rsign_md)) |
| 480 | goto end; |
| 481 | break; |
| 482 | case OPT_RSIGOPT: |
| 483 | if (rsign_sigopts == NULL) |
| 484 | rsign_sigopts = sk_OPENSSL_STRING_new_null(); |
| 485 | if (rsign_sigopts == NULL || !sk_OPENSSL_STRING_push(rsign_sigopts, opt_arg())) |
| 486 | goto end; |
| 487 | break; |
| 488 | case OPT_HEADER: |
| 489 | header = opt_arg(); |
| 490 | value = strchr(header, '='); |
| 491 | if (value == NULL) { |
| 492 | BIO_printf(bio_err, "Missing = in header key=value\n"); |
| 493 | goto opthelp; |
| 494 | } |
| 495 | *value++ = '\0'; |
| 496 | if (!X509V3_add_value(header, value, &headers)) |
| 497 | goto end; |
| 498 | break; |
| 499 | case OPT_MD: |
| 500 | if (trailing_md) { |
| 501 | BIO_printf(bio_err, |
| 502 | "%s: Digest must be before -cert or -serial\n", |
| 503 | prog); |
| 504 | goto opthelp; |
| 505 | } |
| 506 | if (!opt_md(opt_unknown(), &cert_id_md)) |
| 507 | goto opthelp; |
| 508 | trailing_md = 1; |
| 509 | break; |
| 510 | case OPT_MULTI: |
| 511 | #ifdef OCSP_DAEMON |
| 512 | multi = atoi(opt_arg()); |
| 513 | #endif |
| 514 | break; |
| 515 | } |
| 516 | } |
| 517 | if (trailing_md) { |
| 518 | BIO_printf(bio_err, "%s: Digest must be before -cert or -serial\n", |
| 519 | prog); |
| 520 | goto opthelp; |
| 521 | } |
| 522 | argc = opt_num_rest(); |
| 523 | if (argc != 0) |
| 524 | goto opthelp; |
| 525 | |
| 526 | /* Have we anything to do? */ |
| 527 | if (req == NULL && reqin == NULL |
| 528 | && respin == NULL && !(port != NULL && ridx_filename != NULL)) |
| 529 | goto opthelp; |
| 530 | |
| 531 | out = bio_open_default(outfile, 'w', FORMAT_TEXT); |
| 532 | if (out == NULL) |
| 533 | goto end; |
| 534 | |
| 535 | if (req == NULL && (add_nonce != 2)) |
| 536 | add_nonce = 0; |
| 537 | |
| 538 | if (req == NULL && reqin != NULL) { |
| 539 | derbio = bio_open_default(reqin, 'r', FORMAT_ASN1); |
| 540 | if (derbio == NULL) |
| 541 | goto end; |
| 542 | req = d2i_OCSP_REQUEST_bio(derbio, NULL); |
| 543 | BIO_free(derbio); |
| 544 | if (req == NULL) { |
| 545 | BIO_printf(bio_err, "Error reading OCSP request\n"); |
| 546 | goto end; |
| 547 | } |
| 548 | } |
| 549 | |
| 550 | if (req == NULL && port != NULL) { |
| 551 | acbio = init_responder(port); |
| 552 | if (acbio == NULL) |
| 553 | goto end; |
| 554 | } |
| 555 | |
| 556 | if (rsignfile != NULL) { |
| 557 | if (rkeyfile == NULL) |
| 558 | rkeyfile = rsignfile; |
| 559 | rsigner = load_cert(rsignfile, FORMAT_PEM, "responder certificate"); |
| 560 | if (rsigner == NULL) { |
| 561 | BIO_printf(bio_err, "Error loading responder certificate\n"); |
| 562 | goto end; |
| 563 | } |
| 564 | if (!load_certs(rca_filename, &rca_cert, FORMAT_PEM, |
| 565 | NULL, "CA certificate")) |
| 566 | goto end; |
| 567 | if (rcertfile != NULL) { |
| 568 | if (!load_certs(rcertfile, &rother, FORMAT_PEM, NULL, |
| 569 | "responder other certificates")) |
| 570 | goto end; |
| 571 | } |
| 572 | rkey = load_key(rkeyfile, FORMAT_PEM, 0, NULL, NULL, |
| 573 | "responder private key"); |
| 574 | if (rkey == NULL) |
| 575 | goto end; |
| 576 | } |
| 577 | |
| 578 | if (ridx_filename != NULL |
| 579 | && (rkey == NULL || rsigner == NULL || rca_cert == NULL)) { |
| 580 | BIO_printf(bio_err, |
| 581 | "Responder mode requires certificate, key, and CA.\n"); |
| 582 | goto end; |
| 583 | } |
| 584 | |
| 585 | if (ridx_filename != NULL) { |
| 586 | rdb = load_index(ridx_filename, NULL); |
| 587 | if (rdb == NULL || index_index(rdb) <= 0) { |
| 588 | ret = 1; |
| 589 | goto end; |
| 590 | } |
| 591 | } |
| 592 | |
| 593 | #ifdef OCSP_DAEMON |
| 594 | if (multi && acbio != NULL) |
| 595 | spawn_loop(); |
| 596 | if (acbio != NULL && req_timeout > 0) |
| 597 | signal(SIGALRM, socket_timeout); |
| 598 | #endif |
| 599 | |
| 600 | if (acbio != NULL) |
| 601 | log_message(LOG_INFO, "waiting for OCSP client connections..."); |
| 602 | |
| 603 | redo_accept: |
| 604 | |
| 605 | if (acbio != NULL) { |
| 606 | #ifdef OCSP_DAEMON |
| 607 | if (index_changed(rdb)) { |
| 608 | CA_DB *newrdb = load_index(ridx_filename, NULL); |
| 609 | |
| 610 | if (newrdb != NULL && index_index(newrdb) > 0) { |
| 611 | free_index(rdb); |
| 612 | rdb = newrdb; |
| 613 | } else { |
| 614 | free_index(newrdb); |
| 615 | log_message(LOG_ERR, "error reloading updated index: %s", |
| 616 | ridx_filename); |
| 617 | } |
| 618 | } |
| 619 | #endif |
| 620 | |
| 621 | req = NULL; |
| 622 | if (!do_responder(&req, &cbio, acbio, req_timeout)) |
| 623 | goto redo_accept; |
| 624 | |
| 625 | if (req == NULL) { |
| 626 | resp = |
| 627 | OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, |
| 628 | NULL); |
| 629 | send_ocsp_response(cbio, resp); |
| 630 | goto done_resp; |
| 631 | } |
| 632 | } |
| 633 | |
| 634 | if (req == NULL |
| 635 | && (signfile != NULL || reqout != NULL |
| 636 | || host != NULL || add_nonce || ridx_filename != NULL)) { |
| 637 | BIO_printf(bio_err, "Need an OCSP request for this operation!\n"); |
| 638 | goto end; |
| 639 | } |
| 640 | |
| 641 | if (req != NULL && add_nonce) { |
| 642 | if (!OCSP_request_add1_nonce(req, NULL, -1)) |
| 643 | goto end; |
| 644 | } |
| 645 | |
| 646 | if (signfile != NULL) { |
| 647 | if (keyfile == NULL) |
| 648 | keyfile = signfile; |
| 649 | signer = load_cert(signfile, FORMAT_PEM, "signer certificate"); |
| 650 | if (signer == NULL) { |
| 651 | BIO_printf(bio_err, "Error loading signer certificate\n"); |
| 652 | goto end; |
| 653 | } |
| 654 | if (sign_certfile != NULL) { |
| 655 | if (!load_certs(sign_certfile, &sign_other, FORMAT_PEM, NULL, |
| 656 | "signer certificates")) |
| 657 | goto end; |
| 658 | } |
| 659 | key = load_key(keyfile, FORMAT_PEM, 0, NULL, NULL, |
| 660 | "signer private key"); |
| 661 | if (key == NULL) |
| 662 | goto end; |
| 663 | |
| 664 | if (!OCSP_request_sign |
| 665 | (req, signer, key, NULL, sign_other, sign_flags)) { |
| 666 | BIO_printf(bio_err, "Error signing OCSP request\n"); |
| 667 | goto end; |
| 668 | } |
| 669 | } |
| 670 | |
| 671 | if (req_text && req != NULL) |
| 672 | OCSP_REQUEST_print(out, req, 0); |
| 673 | |
| 674 | if (reqout != NULL) { |
| 675 | derbio = bio_open_default(reqout, 'w', FORMAT_ASN1); |
| 676 | if (derbio == NULL) |
| 677 | goto end; |
| 678 | i2d_OCSP_REQUEST_bio(derbio, req); |
| 679 | BIO_free(derbio); |
| 680 | } |
| 681 | |
| 682 | if (rdb != NULL) { |
| 683 | make_ocsp_response(bio_err, &resp, req, rdb, rca_cert, rsigner, rkey, |
| 684 | rsign_md, rsign_sigopts, rother, rflags, nmin, ndays, badsig); |
| 685 | if (cbio != NULL) |
| 686 | send_ocsp_response(cbio, resp); |
| 687 | } else if (host != NULL) { |
| 688 | #ifndef OPENSSL_NO_SOCK |
| 689 | resp = process_responder(req, host, path, |
| 690 | port, use_ssl, headers, req_timeout); |
| 691 | if (resp == NULL) |
| 692 | goto end; |
| 693 | #else |
| 694 | BIO_printf(bio_err, |
| 695 | "Error creating connect BIO - sockets not supported.\n"); |
| 696 | goto end; |
| 697 | #endif |
| 698 | } else if (respin != NULL) { |
| 699 | derbio = bio_open_default(respin, 'r', FORMAT_ASN1); |
| 700 | if (derbio == NULL) |
| 701 | goto end; |
| 702 | resp = d2i_OCSP_RESPONSE_bio(derbio, NULL); |
| 703 | BIO_free(derbio); |
| 704 | if (resp == NULL) { |
| 705 | BIO_printf(bio_err, "Error reading OCSP response\n"); |
| 706 | goto end; |
| 707 | } |
| 708 | } else { |
| 709 | ret = 0; |
| 710 | goto end; |
| 711 | } |
| 712 | |
| 713 | done_resp: |
| 714 | |
| 715 | if (respout != NULL) { |
| 716 | derbio = bio_open_default(respout, 'w', FORMAT_ASN1); |
| 717 | if (derbio == NULL) |
| 718 | goto end; |
| 719 | i2d_OCSP_RESPONSE_bio(derbio, resp); |
| 720 | BIO_free(derbio); |
| 721 | } |
| 722 | |
| 723 | i = OCSP_response_status(resp); |
| 724 | if (i != OCSP_RESPONSE_STATUS_SUCCESSFUL) { |
| 725 | BIO_printf(out, "Responder Error: %s (%d)\n", |
| 726 | OCSP_response_status_str(i), i); |
| 727 | if (!ignore_err) |
| 728 | goto end; |
| 729 | } |
| 730 | |
| 731 | if (resp_text) |
| 732 | OCSP_RESPONSE_print(out, resp, 0); |
| 733 | |
| 734 | /* If running as responder don't verify our own response */ |
| 735 | if (cbio != NULL) { |
| 736 | /* If not unlimited, see if we took all we should. */ |
| 737 | if (accept_count != -1 && --accept_count <= 0) { |
| 738 | ret = 0; |
| 739 | goto end; |
| 740 | } |
| 741 | BIO_free_all(cbio); |
| 742 | cbio = NULL; |
| 743 | OCSP_REQUEST_free(req); |
| 744 | req = NULL; |
| 745 | OCSP_RESPONSE_free(resp); |
| 746 | resp = NULL; |
| 747 | goto redo_accept; |
| 748 | } |
| 749 | if (ridx_filename != NULL) { |
| 750 | ret = 0; |
| 751 | goto end; |
| 752 | } |
| 753 | |
| 754 | if (store == NULL) { |
| 755 | store = setup_verify(CAfile, CApath, noCAfile, noCApath); |
| 756 | if (!store) |
| 757 | goto end; |
| 758 | } |
| 759 | if (vpmtouched) |
| 760 | X509_STORE_set1_param(store, vpm); |
| 761 | if (verify_certfile != NULL) { |
| 762 | if (!load_certs(verify_certfile, &verify_other, FORMAT_PEM, NULL, |
| 763 | "validator certificate")) |
| 764 | goto end; |
| 765 | } |
| 766 | |
| 767 | bs = OCSP_response_get1_basic(resp); |
| 768 | if (bs == NULL) { |
| 769 | BIO_printf(bio_err, "Error parsing response\n"); |
| 770 | goto end; |
| 771 | } |
| 772 | |
| 773 | ret = 0; |
| 774 | |
| 775 | if (!noverify) { |
| 776 | if (req != NULL && ((i = OCSP_check_nonce(req, bs)) <= 0)) { |
| 777 | if (i == -1) |
| 778 | BIO_printf(bio_err, "WARNING: no nonce in response\n"); |
| 779 | else { |
| 780 | BIO_printf(bio_err, "Nonce Verify error\n"); |
| 781 | ret = 1; |
| 782 | goto end; |
| 783 | } |
| 784 | } |
| 785 | |
| 786 | i = OCSP_basic_verify(bs, verify_other, store, verify_flags); |
| 787 | if (i <= 0 && issuers) { |
| 788 | i = OCSP_basic_verify(bs, issuers, store, OCSP_TRUSTOTHER); |
| 789 | if (i > 0) |
| 790 | ERR_clear_error(); |
| 791 | } |
| 792 | if (i <= 0) { |
| 793 | BIO_printf(bio_err, "Response Verify Failure\n"); |
| 794 | ERR_print_errors(bio_err); |
| 795 | ret = 1; |
| 796 | } else { |
| 797 | BIO_printf(bio_err, "Response verify OK\n"); |
| 798 | } |
| 799 | } |
| 800 | |
| 801 | print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage); |
| 802 | |
| 803 | end: |
| 804 | ERR_print_errors(bio_err); |
| 805 | X509_free(signer); |
| 806 | X509_STORE_free(store); |
| 807 | X509_VERIFY_PARAM_free(vpm); |
| 808 | sk_OPENSSL_STRING_free(rsign_sigopts); |
| 809 | EVP_PKEY_free(key); |
| 810 | EVP_PKEY_free(rkey); |
| 811 | X509_free(cert); |
| 812 | sk_X509_pop_free(issuers, X509_free); |
| 813 | X509_free(rsigner); |
| 814 | sk_X509_pop_free(rca_cert, X509_free); |
| 815 | free_index(rdb); |
| 816 | BIO_free_all(cbio); |
| 817 | BIO_free_all(acbio); |
| 818 | BIO_free_all(out); |
| 819 | OCSP_REQUEST_free(req); |
| 820 | OCSP_RESPONSE_free(resp); |
| 821 | OCSP_BASICRESP_free(bs); |
| 822 | sk_OPENSSL_STRING_free(reqnames); |
| 823 | sk_OCSP_CERTID_free(ids); |
| 824 | sk_X509_pop_free(sign_other, X509_free); |
| 825 | sk_X509_pop_free(verify_other, X509_free); |
| 826 | sk_CONF_VALUE_pop_free(headers, X509V3_conf_free); |
| 827 | OPENSSL_free(thost); |
| 828 | OPENSSL_free(tport); |
| 829 | OPENSSL_free(tpath); |
| 830 | |
| 831 | return ret; |
| 832 | } |
| 833 | |
| 834 | static void |
| 835 | log_message(int level, const char *fmt, ...) |
| 836 | { |
| 837 | va_list ap; |
| 838 | |
| 839 | va_start(ap, fmt); |
| 840 | #ifdef OCSP_DAEMON |
| 841 | if (multi) { |
| 842 | char buf[1024]; |
| 843 | if (vsnprintf(buf, sizeof(buf), fmt, ap) > 0) { |
| 844 | syslog(level, "%s", buf); |
| 845 | } |
| 846 | if (level >= LOG_ERR) |
| 847 | ERR_print_errors_cb(print_syslog, &level); |
| 848 | } |
| 849 | #endif |
| 850 | if (!multi) { |
| 851 | BIO_printf(bio_err, "%s: ", prog); |
| 852 | BIO_vprintf(bio_err, fmt, ap); |
| 853 | BIO_printf(bio_err, "\n"); |
| 854 | } |
| 855 | va_end(ap); |
| 856 | } |
| 857 | |
| 858 | #ifdef OCSP_DAEMON |
| 859 | |
| 860 | static int print_syslog(const char *str, size_t len, void *levPtr) |
| 861 | { |
| 862 | int level = *(int *)levPtr; |
| 863 | int ilen = (len > MAXERRLEN) ? MAXERRLEN : len; |
| 864 | |
| 865 | syslog(level, "%.*s", ilen, str); |
| 866 | |
| 867 | return ilen; |
| 868 | } |
| 869 | |
| 870 | static int index_changed(CA_DB *rdb) |
| 871 | { |
| 872 | struct stat sb; |
| 873 | |
| 874 | if (rdb != NULL && stat(rdb->dbfname, &sb) != -1) { |
| 875 | if (rdb->dbst.st_mtime != sb.st_mtime |
| 876 | || rdb->dbst.st_ctime != sb.st_ctime |
| 877 | || rdb->dbst.st_ino != sb.st_ino |
| 878 | || rdb->dbst.st_dev != sb.st_dev) { |
| 879 | syslog(LOG_INFO, "index file changed, reloading"); |
| 880 | return 1; |
| 881 | } |
| 882 | } |
| 883 | return 0; |
| 884 | } |
| 885 | |
| 886 | static void killall(int ret, pid_t *kidpids) |
| 887 | { |
| 888 | int i; |
| 889 | |
| 890 | for (i = 0; i < multi; ++i) |
| 891 | if (kidpids[i] != 0) |
| 892 | (void)kill(kidpids[i], SIGTERM); |
| 893 | OPENSSL_free(kidpids); |
| 894 | sleep(1); |
| 895 | exit(ret); |
| 896 | } |
| 897 | |
| 898 | static int termsig = 0; |
| 899 | |
| 900 | static void noteterm (int sig) |
| 901 | { |
| 902 | termsig = sig; |
| 903 | } |
| 904 | |
| 905 | /* |
| 906 | * Loop spawning up to `multi` child processes, only child processes return |
| 907 | * from this function. The parent process loops until receiving a termination |
| 908 | * signal, kills extant children and exits without returning. |
| 909 | */ |
| 910 | static void spawn_loop(void) |
| 911 | { |
| 912 | pid_t *kidpids = NULL; |
| 913 | int status; |
| 914 | int procs = 0; |
| 915 | int i; |
| 916 | |
| 917 | openlog(prog, LOG_PID, LOG_DAEMON); |
| 918 | |
| 919 | if (setpgid(0, 0)) { |
| 920 | syslog(LOG_ERR, "fatal: error detaching from parent process group: %s", |
| 921 | strerror(errno)); |
| 922 | exit(1); |
| 923 | } |
| 924 | kidpids = app_malloc(multi * sizeof(*kidpids), "child PID array"); |
| 925 | for (i = 0; i < multi; ++i) |
| 926 | kidpids[i] = 0; |
| 927 | |
| 928 | signal(SIGINT, noteterm); |
| 929 | signal(SIGTERM, noteterm); |
| 930 | |
| 931 | while (termsig == 0) { |
| 932 | pid_t fpid; |
| 933 | |
| 934 | /* |
| 935 | * Wait for a child to replace when we're at the limit. |
| 936 | * Slow down if a child exited abnormally or waitpid() < 0 |
| 937 | */ |
| 938 | while (termsig == 0 && procs >= multi) { |
| 939 | if ((fpid = waitpid(-1, &status, 0)) > 0) { |
| 940 | for (i = 0; i < procs; ++i) { |
| 941 | if (kidpids[i] == fpid) { |
| 942 | kidpids[i] = 0; |
| 943 | --procs; |
| 944 | break; |
| 945 | } |
| 946 | } |
| 947 | if (i >= multi) { |
| 948 | syslog(LOG_ERR, "fatal: internal error: " |
| 949 | "no matching child slot for pid: %ld", |
| 950 | (long) fpid); |
| 951 | killall(1, kidpids); |
| 952 | } |
| 953 | if (status != 0) { |
| 954 | if (WIFEXITED(status)) |
| 955 | syslog(LOG_WARNING, "child process: %ld, exit status: %d", |
| 956 | (long)fpid, WEXITSTATUS(status)); |
| 957 | else if (WIFSIGNALED(status)) |
| 958 | syslog(LOG_WARNING, "child process: %ld, term signal %d%s", |
| 959 | (long)fpid, WTERMSIG(status), |
| 960 | #ifdef WCOREDUMP |
| 961 | WCOREDUMP(status) ? " (core dumped)" : |
| 962 | #endif |
| 963 | ""); |
| 964 | sleep(1); |
| 965 | } |
| 966 | break; |
| 967 | } else if (errno != EINTR) { |
| 968 | syslog(LOG_ERR, "fatal: waitpid(): %s", strerror(errno)); |
| 969 | killall(1, kidpids); |
| 970 | } |
| 971 | } |
| 972 | if (termsig) |
| 973 | break; |
| 974 | |
| 975 | switch(fpid = fork()) { |
| 976 | case -1: /* error */ |
| 977 | /* System critically low on memory, pause and try again later */ |
| 978 | sleep(30); |
| 979 | break; |
| 980 | case 0: /* child */ |
| 981 | OPENSSL_free(kidpids); |
| 982 | signal(SIGINT, SIG_DFL); |
| 983 | signal(SIGTERM, SIG_DFL); |
| 984 | if (termsig) |
| 985 | _exit(0); |
| 986 | if (RAND_poll() <= 0) { |
| 987 | syslog(LOG_ERR, "fatal: RAND_poll() failed"); |
| 988 | _exit(1); |
| 989 | } |
| 990 | return; |
| 991 | default: /* parent */ |
| 992 | for (i = 0; i < multi; ++i) { |
| 993 | if (kidpids[i] == 0) { |
| 994 | kidpids[i] = fpid; |
| 995 | procs++; |
| 996 | break; |
| 997 | } |
| 998 | } |
| 999 | if (i >= multi) { |
| 1000 | syslog(LOG_ERR, "fatal: internal error: no free child slots"); |
| 1001 | killall(1, kidpids); |
| 1002 | } |
| 1003 | break; |
| 1004 | } |
| 1005 | } |
| 1006 | |
| 1007 | /* The loop above can only break on termsig */ |
| 1008 | syslog(LOG_INFO, "terminating on signal: %d", termsig); |
| 1009 | killall(0, kidpids); |
| 1010 | } |
| 1011 | #endif |
| 1012 | |
| 1013 | static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, |
| 1014 | const EVP_MD *cert_id_md, X509 *issuer, |
| 1015 | STACK_OF(OCSP_CERTID) *ids) |
| 1016 | { |
| 1017 | OCSP_CERTID *id; |
| 1018 | |
| 1019 | if (issuer == NULL) { |
| 1020 | BIO_printf(bio_err, "No issuer certificate specified\n"); |
| 1021 | return 0; |
| 1022 | } |
| 1023 | if (*req == NULL) |
| 1024 | *req = OCSP_REQUEST_new(); |
| 1025 | if (*req == NULL) |
| 1026 | goto err; |
| 1027 | id = OCSP_cert_to_id(cert_id_md, cert, issuer); |
| 1028 | if (id == NULL || !sk_OCSP_CERTID_push(ids, id)) |
| 1029 | goto err; |
| 1030 | if (!OCSP_request_add0_id(*req, id)) |
| 1031 | goto err; |
| 1032 | return 1; |
| 1033 | |
| 1034 | err: |
| 1035 | BIO_printf(bio_err, "Error Creating OCSP request\n"); |
| 1036 | return 0; |
| 1037 | } |
| 1038 | |
| 1039 | static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, |
| 1040 | const EVP_MD *cert_id_md, X509 *issuer, |
| 1041 | STACK_OF(OCSP_CERTID) *ids) |
| 1042 | { |
| 1043 | OCSP_CERTID *id; |
| 1044 | X509_NAME *iname; |
| 1045 | ASN1_BIT_STRING *ikey; |
| 1046 | ASN1_INTEGER *sno; |
| 1047 | |
| 1048 | if (issuer == NULL) { |
| 1049 | BIO_printf(bio_err, "No issuer certificate specified\n"); |
| 1050 | return 0; |
| 1051 | } |
| 1052 | if (*req == NULL) |
| 1053 | *req = OCSP_REQUEST_new(); |
| 1054 | if (*req == NULL) |
| 1055 | goto err; |
| 1056 | iname = X509_get_subject_name(issuer); |
| 1057 | ikey = X509_get0_pubkey_bitstr(issuer); |
| 1058 | sno = s2i_ASN1_INTEGER(NULL, serial); |
| 1059 | if (sno == NULL) { |
| 1060 | BIO_printf(bio_err, "Error converting serial number %s\n", serial); |
| 1061 | return 0; |
| 1062 | } |
| 1063 | id = OCSP_cert_id_new(cert_id_md, iname, ikey, sno); |
| 1064 | ASN1_INTEGER_free(sno); |
| 1065 | if (id == NULL || !sk_OCSP_CERTID_push(ids, id)) |
| 1066 | goto err; |
| 1067 | if (!OCSP_request_add0_id(*req, id)) |
| 1068 | goto err; |
| 1069 | return 1; |
| 1070 | |
| 1071 | err: |
| 1072 | BIO_printf(bio_err, "Error Creating OCSP request\n"); |
| 1073 | return 0; |
| 1074 | } |
| 1075 | |
| 1076 | static void print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req, |
| 1077 | STACK_OF(OPENSSL_STRING) *names, |
| 1078 | STACK_OF(OCSP_CERTID) *ids, long nsec, |
| 1079 | long maxage) |
| 1080 | { |
| 1081 | OCSP_CERTID *id; |
| 1082 | const char *name; |
| 1083 | int i, status, reason; |
| 1084 | ASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd; |
| 1085 | |
| 1086 | if (bs == NULL || req == NULL || !sk_OPENSSL_STRING_num(names) |
| 1087 | || !sk_OCSP_CERTID_num(ids)) |
| 1088 | return; |
| 1089 | |
| 1090 | for (i = 0; i < sk_OCSP_CERTID_num(ids); i++) { |
| 1091 | id = sk_OCSP_CERTID_value(ids, i); |
| 1092 | name = sk_OPENSSL_STRING_value(names, i); |
| 1093 | BIO_printf(out, "%s: ", name); |
| 1094 | |
| 1095 | if (!OCSP_resp_find_status(bs, id, &status, &reason, |
| 1096 | &rev, &thisupd, &nextupd)) { |
| 1097 | BIO_puts(out, "ERROR: No Status found.\n"); |
| 1098 | continue; |
| 1099 | } |
| 1100 | |
| 1101 | /* |
| 1102 | * Check validity: if invalid write to output BIO so we know which |
| 1103 | * response this refers to. |
| 1104 | */ |
| 1105 | if (!OCSP_check_validity(thisupd, nextupd, nsec, maxage)) { |
| 1106 | BIO_puts(out, "WARNING: Status times invalid.\n"); |
| 1107 | ERR_print_errors(out); |
| 1108 | } |
| 1109 | BIO_printf(out, "%s\n", OCSP_cert_status_str(status)); |
| 1110 | |
| 1111 | BIO_puts(out, "\tThis Update: "); |
| 1112 | ASN1_GENERALIZEDTIME_print(out, thisupd); |
| 1113 | BIO_puts(out, "\n"); |
| 1114 | |
| 1115 | if (nextupd) { |
| 1116 | BIO_puts(out, "\tNext Update: "); |
| 1117 | ASN1_GENERALIZEDTIME_print(out, nextupd); |
| 1118 | BIO_puts(out, "\n"); |
| 1119 | } |
| 1120 | |
| 1121 | if (status != V_OCSP_CERTSTATUS_REVOKED) |
| 1122 | continue; |
| 1123 | |
| 1124 | if (reason != -1) |
| 1125 | BIO_printf(out, "\tReason: %s\n", OCSP_crl_reason_str(reason)); |
| 1126 | |
| 1127 | BIO_puts(out, "\tRevocation Time: "); |
| 1128 | ASN1_GENERALIZEDTIME_print(out, rev); |
| 1129 | BIO_puts(out, "\n"); |
| 1130 | } |
| 1131 | } |
| 1132 | |
| 1133 | static void make_ocsp_response(BIO *err, OCSP_RESPONSE **resp, OCSP_REQUEST *req, |
| 1134 | CA_DB *db, STACK_OF(X509) *ca, X509 *rcert, |
| 1135 | EVP_PKEY *rkey, const EVP_MD *rmd, |
| 1136 | STACK_OF(OPENSSL_STRING) *sigopts, |
| 1137 | STACK_OF(X509) *rother, unsigned long flags, |
| 1138 | int nmin, int ndays, int badsig) |
| 1139 | { |
| 1140 | ASN1_TIME *thisupd = NULL, *nextupd = NULL; |
| 1141 | OCSP_CERTID *cid; |
| 1142 | OCSP_BASICRESP *bs = NULL; |
| 1143 | int i, id_count; |
| 1144 | EVP_MD_CTX *mctx = NULL; |
| 1145 | EVP_PKEY_CTX *pkctx = NULL; |
| 1146 | |
| 1147 | id_count = OCSP_request_onereq_count(req); |
| 1148 | |
| 1149 | if (id_count <= 0) { |
| 1150 | *resp = |
| 1151 | OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL); |
| 1152 | goto end; |
| 1153 | } |
| 1154 | |
| 1155 | bs = OCSP_BASICRESP_new(); |
| 1156 | thisupd = X509_gmtime_adj(NULL, 0); |
| 1157 | if (ndays != -1) |
| 1158 | nextupd = X509_time_adj_ex(NULL, ndays, nmin * 60, NULL); |
| 1159 | |
| 1160 | /* Examine each certificate id in the request */ |
| 1161 | for (i = 0; i < id_count; i++) { |
| 1162 | OCSP_ONEREQ *one; |
| 1163 | ASN1_INTEGER *serial; |
| 1164 | char **inf; |
| 1165 | int jj; |
| 1166 | int found = 0; |
| 1167 | ASN1_OBJECT *cert_id_md_oid; |
| 1168 | const EVP_MD *cert_id_md; |
| 1169 | one = OCSP_request_onereq_get0(req, i); |
| 1170 | cid = OCSP_onereq_get0_id(one); |
| 1171 | |
| 1172 | OCSP_id_get0_info(NULL, &cert_id_md_oid, NULL, NULL, cid); |
| 1173 | |
| 1174 | cert_id_md = EVP_get_digestbyobj(cert_id_md_oid); |
| 1175 | if (cert_id_md == NULL) { |
| 1176 | *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_INTERNALERROR, |
| 1177 | NULL); |
| 1178 | goto end; |
| 1179 | } |
| 1180 | for (jj = 0; jj < sk_X509_num(ca) && !found; jj++) { |
| 1181 | X509 *ca_cert = sk_X509_value(ca, jj); |
| 1182 | OCSP_CERTID *ca_id = OCSP_cert_to_id(cert_id_md, NULL, ca_cert); |
| 1183 | |
| 1184 | if (OCSP_id_issuer_cmp(ca_id, cid) == 0) |
| 1185 | found = 1; |
| 1186 | |
| 1187 | OCSP_CERTID_free(ca_id); |
| 1188 | } |
| 1189 | |
| 1190 | if (!found) { |
| 1191 | OCSP_basic_add1_status(bs, cid, |
| 1192 | V_OCSP_CERTSTATUS_UNKNOWN, |
| 1193 | 0, NULL, thisupd, nextupd); |
| 1194 | continue; |
| 1195 | } |
| 1196 | OCSP_id_get0_info(NULL, NULL, NULL, &serial, cid); |
| 1197 | inf = lookup_serial(db, serial); |
| 1198 | if (inf == NULL) { |
| 1199 | OCSP_basic_add1_status(bs, cid, |
| 1200 | V_OCSP_CERTSTATUS_UNKNOWN, |
| 1201 | 0, NULL, thisupd, nextupd); |
| 1202 | } else if (inf[DB_type][0] == DB_TYPE_VAL) { |
| 1203 | OCSP_basic_add1_status(bs, cid, |
| 1204 | V_OCSP_CERTSTATUS_GOOD, |
| 1205 | 0, NULL, thisupd, nextupd); |
| 1206 | } else if (inf[DB_type][0] == DB_TYPE_REV) { |
| 1207 | ASN1_OBJECT *inst = NULL; |
| 1208 | ASN1_TIME *revtm = NULL; |
| 1209 | ASN1_GENERALIZEDTIME *invtm = NULL; |
| 1210 | OCSP_SINGLERESP *single; |
| 1211 | int reason = -1; |
| 1212 | unpack_revinfo(&revtm, &reason, &inst, &invtm, inf[DB_rev_date]); |
| 1213 | single = OCSP_basic_add1_status(bs, cid, |
| 1214 | V_OCSP_CERTSTATUS_REVOKED, |
| 1215 | reason, revtm, thisupd, nextupd); |
| 1216 | if (invtm != NULL) |
| 1217 | OCSP_SINGLERESP_add1_ext_i2d(single, NID_invalidity_date, |
| 1218 | invtm, 0, 0); |
| 1219 | else if (inst != NULL) |
| 1220 | OCSP_SINGLERESP_add1_ext_i2d(single, |
| 1221 | NID_hold_instruction_code, inst, |
| 1222 | 0, 0); |
| 1223 | ASN1_OBJECT_free(inst); |
| 1224 | ASN1_TIME_free(revtm); |
| 1225 | ASN1_GENERALIZEDTIME_free(invtm); |
| 1226 | } |
| 1227 | } |
| 1228 | |
| 1229 | OCSP_copy_nonce(bs, req); |
| 1230 | |
| 1231 | mctx = EVP_MD_CTX_new(); |
| 1232 | if ( mctx == NULL || !EVP_DigestSignInit(mctx, &pkctx, rmd, NULL, rkey)) { |
| 1233 | *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_INTERNALERROR, NULL); |
| 1234 | goto end; |
| 1235 | } |
| 1236 | for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) { |
| 1237 | char *sigopt = sk_OPENSSL_STRING_value(sigopts, i); |
| 1238 | |
| 1239 | if (pkey_ctrl_string(pkctx, sigopt) <= 0) { |
| 1240 | BIO_printf(err, "parameter error \"%s\"\n", sigopt); |
| 1241 | ERR_print_errors(bio_err); |
| 1242 | *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_INTERNALERROR, |
| 1243 | NULL); |
| 1244 | goto end; |
| 1245 | } |
| 1246 | } |
| 1247 | if (!OCSP_basic_sign_ctx(bs, rcert, mctx, rother, flags)) { |
| 1248 | *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_INTERNALERROR, bs); |
| 1249 | goto end; |
| 1250 | } |
| 1251 | |
| 1252 | if (badsig) { |
| 1253 | const ASN1_OCTET_STRING *sig = OCSP_resp_get0_signature(bs); |
| 1254 | corrupt_signature(sig); |
| 1255 | } |
| 1256 | |
| 1257 | *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_SUCCESSFUL, bs); |
| 1258 | |
| 1259 | end: |
| 1260 | EVP_MD_CTX_free(mctx); |
| 1261 | ASN1_TIME_free(thisupd); |
| 1262 | ASN1_TIME_free(nextupd); |
| 1263 | OCSP_BASICRESP_free(bs); |
| 1264 | } |
| 1265 | |
| 1266 | static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser) |
| 1267 | { |
| 1268 | int i; |
| 1269 | BIGNUM *bn = NULL; |
| 1270 | char *itmp, *row[DB_NUMBER], **rrow; |
| 1271 | for (i = 0; i < DB_NUMBER; i++) |
| 1272 | row[i] = NULL; |
| 1273 | bn = ASN1_INTEGER_to_BN(ser, NULL); |
| 1274 | OPENSSL_assert(bn); /* FIXME: should report an error at this |
| 1275 | * point and abort */ |
| 1276 | if (BN_is_zero(bn)) |
| 1277 | itmp = OPENSSL_strdup("00"); |
| 1278 | else |
| 1279 | itmp = BN_bn2hex(bn); |
| 1280 | row[DB_serial] = itmp; |
| 1281 | BN_free(bn); |
| 1282 | rrow = TXT_DB_get_by_index(db->db, DB_serial, row); |
| 1283 | OPENSSL_free(itmp); |
| 1284 | return rrow; |
| 1285 | } |
| 1286 | |
| 1287 | /* Quick and dirty OCSP server: read in and parse input request */ |
| 1288 | |
| 1289 | static BIO *init_responder(const char *port) |
| 1290 | { |
| 1291 | #ifdef OPENSSL_NO_SOCK |
| 1292 | BIO_printf(bio_err, |
| 1293 | "Error setting up accept BIO - sockets not supported.\n"); |
| 1294 | return NULL; |
| 1295 | #else |
| 1296 | BIO *acbio = NULL, *bufbio = NULL; |
| 1297 | |
| 1298 | bufbio = BIO_new(BIO_f_buffer()); |
| 1299 | if (bufbio == NULL) |
| 1300 | goto err; |
| 1301 | acbio = BIO_new(BIO_s_accept()); |
| 1302 | if (acbio == NULL |
| 1303 | || BIO_set_bind_mode(acbio, BIO_BIND_REUSEADDR) < 0 |
| 1304 | || BIO_set_accept_port(acbio, port) < 0) { |
| 1305 | log_message(LOG_ERR, "Error setting up accept BIO"); |
| 1306 | goto err; |
| 1307 | } |
| 1308 | |
| 1309 | BIO_set_accept_bios(acbio, bufbio); |
| 1310 | bufbio = NULL; |
| 1311 | if (BIO_do_accept(acbio) <= 0) { |
| 1312 | log_message(LOG_ERR, "Error starting accept"); |
| 1313 | goto err; |
| 1314 | } |
| 1315 | |
| 1316 | return acbio; |
| 1317 | |
| 1318 | err: |
| 1319 | BIO_free_all(acbio); |
| 1320 | BIO_free(bufbio); |
| 1321 | return NULL; |
| 1322 | #endif |
| 1323 | } |
| 1324 | |
| 1325 | #ifndef OPENSSL_NO_SOCK |
| 1326 | /* |
| 1327 | * Decode %xx URL-decoding in-place. Ignores mal-formed sequences. |
| 1328 | */ |
| 1329 | static int urldecode(char *p) |
| 1330 | { |
| 1331 | unsigned char *out = (unsigned char *)p; |
| 1332 | unsigned char *save = out; |
| 1333 | |
| 1334 | for (; *p; p++) { |
| 1335 | if (*p != '%') |
| 1336 | *out++ = *p; |
| 1337 | else if (isxdigit(_UC(p[1])) && isxdigit(_UC(p[2]))) { |
| 1338 | /* Don't check, can't fail because of ixdigit() call. */ |
| 1339 | *out++ = (OPENSSL_hexchar2int(p[1]) << 4) |
| 1340 | | OPENSSL_hexchar2int(p[2]); |
| 1341 | p += 2; |
| 1342 | } |
| 1343 | else |
| 1344 | return -1; |
| 1345 | } |
| 1346 | *out = '\0'; |
| 1347 | return (int)(out - save); |
| 1348 | } |
| 1349 | #endif |
| 1350 | |
| 1351 | #ifdef OCSP_DAEMON |
| 1352 | static void socket_timeout(int signum) |
| 1353 | { |
| 1354 | if (acfd != (int)INVALID_SOCKET) |
| 1355 | (void)shutdown(acfd, SHUT_RD); |
| 1356 | } |
| 1357 | #endif |
| 1358 | |
| 1359 | static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, |
| 1360 | int timeout) |
| 1361 | { |
| 1362 | #ifdef OPENSSL_NO_SOCK |
| 1363 | return 0; |
| 1364 | #else |
| 1365 | int len; |
| 1366 | OCSP_REQUEST *req = NULL; |
| 1367 | char inbuf[2048], reqbuf[2048]; |
| 1368 | char *p, *q; |
| 1369 | BIO *cbio = NULL, *getbio = NULL, *b64 = NULL; |
| 1370 | const char *client; |
| 1371 | |
| 1372 | *preq = NULL; |
| 1373 | |
| 1374 | /* Connection loss before accept() is routine, ignore silently */ |
| 1375 | if (BIO_do_accept(acbio) <= 0) |
| 1376 | return 0; |
| 1377 | |
| 1378 | cbio = BIO_pop(acbio); |
| 1379 | *pcbio = cbio; |
| 1380 | client = BIO_get_peer_name(cbio); |
| 1381 | |
| 1382 | # ifdef OCSP_DAEMON |
| 1383 | if (timeout > 0) { |
| 1384 | (void) BIO_get_fd(cbio, &acfd); |
| 1385 | alarm(timeout); |
| 1386 | } |
| 1387 | # endif |
| 1388 | |
| 1389 | /* Read the request line. */ |
| 1390 | len = BIO_gets(cbio, reqbuf, sizeof(reqbuf)); |
| 1391 | if (len <= 0) |
| 1392 | goto out; |
| 1393 | |
| 1394 | if (strncmp(reqbuf, "GET ", 4) == 0) { |
| 1395 | /* Expecting GET {sp} /URL {sp} HTTP/1.x */ |
| 1396 | for (p = reqbuf + 4; *p == ' '; ++p) |
| 1397 | continue; |
| 1398 | if (*p != '/') { |
| 1399 | log_message(LOG_INFO, "Invalid request -- bad URL: %s", client); |
| 1400 | goto out; |
| 1401 | } |
| 1402 | p++; |
| 1403 | |
| 1404 | /* Splice off the HTTP version identifier. */ |
| 1405 | for (q = p; *q; q++) |
| 1406 | if (*q == ' ') |
| 1407 | break; |
| 1408 | if (strncmp(q, " HTTP/1.", 8) != 0) { |
| 1409 | log_message(LOG_INFO, |
| 1410 | "Invalid request -- bad HTTP version: %s", client); |
| 1411 | goto out; |
| 1412 | } |
| 1413 | *q = '\0'; |
| 1414 | |
| 1415 | /* |
| 1416 | * Skip "GET / HTTP..." requests often used by load-balancers. Note: |
| 1417 | * 'p' was incremented above to point to the first byte *after* the |
| 1418 | * leading slash, so with 'GET / ' it is now an empty string. |
| 1419 | */ |
| 1420 | if (p[0] == '\0') |
| 1421 | goto out; |
| 1422 | |
| 1423 | len = urldecode(p); |
| 1424 | if (len <= 0) { |
| 1425 | log_message(LOG_INFO, |
| 1426 | "Invalid request -- bad URL encoding: %s", client); |
| 1427 | goto out; |
| 1428 | } |
| 1429 | if ((getbio = BIO_new_mem_buf(p, len)) == NULL |
| 1430 | || (b64 = BIO_new(BIO_f_base64())) == NULL) { |
| 1431 | log_message(LOG_ERR, "Could not allocate base64 bio: %s", client); |
| 1432 | goto out; |
| 1433 | } |
| 1434 | BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL); |
| 1435 | getbio = BIO_push(b64, getbio); |
| 1436 | } else if (strncmp(reqbuf, "POST ", 5) != 0) { |
| 1437 | log_message(LOG_INFO, "Invalid request -- bad HTTP verb: %s", client); |
| 1438 | goto out; |
| 1439 | } |
| 1440 | |
| 1441 | /* Read and skip past the headers. */ |
| 1442 | for (;;) { |
| 1443 | len = BIO_gets(cbio, inbuf, sizeof(inbuf)); |
| 1444 | if (len <= 0) |
| 1445 | goto out; |
| 1446 | if ((inbuf[0] == '\r') || (inbuf[0] == '\n')) |
| 1447 | break; |
| 1448 | } |
| 1449 | |
| 1450 | # ifdef OCSP_DAEMON |
| 1451 | /* Clear alarm before we close the client socket */ |
| 1452 | alarm(0); |
| 1453 | timeout = 0; |
| 1454 | # endif |
| 1455 | |
| 1456 | /* Try to read OCSP request */ |
| 1457 | if (getbio != NULL) { |
| 1458 | req = d2i_OCSP_REQUEST_bio(getbio, NULL); |
| 1459 | BIO_free_all(getbio); |
| 1460 | } else { |
| 1461 | req = d2i_OCSP_REQUEST_bio(cbio, NULL); |
| 1462 | } |
| 1463 | |
| 1464 | if (req == NULL) |
| 1465 | log_message(LOG_ERR, "Error parsing OCSP request"); |
| 1466 | |
| 1467 | *preq = req; |
| 1468 | |
| 1469 | out: |
| 1470 | # ifdef OCSP_DAEMON |
| 1471 | if (timeout > 0) |
| 1472 | alarm(0); |
| 1473 | acfd = (int)INVALID_SOCKET; |
| 1474 | # endif |
| 1475 | return 1; |
| 1476 | #endif |
| 1477 | } |
| 1478 | |
| 1479 | static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp) |
| 1480 | { |
| 1481 | char http_resp[] = |
| 1482 | "HTTP/1.0 200 OK\r\nContent-type: application/ocsp-response\r\n" |
| 1483 | "Content-Length: %d\r\n\r\n"; |
| 1484 | if (cbio == NULL) |
| 1485 | return 0; |
| 1486 | BIO_printf(cbio, http_resp, i2d_OCSP_RESPONSE(resp, NULL)); |
| 1487 | i2d_OCSP_RESPONSE_bio(cbio, resp); |
| 1488 | (void)BIO_flush(cbio); |
| 1489 | return 1; |
| 1490 | } |
| 1491 | |
| 1492 | #ifndef OPENSSL_NO_SOCK |
| 1493 | static OCSP_RESPONSE *query_responder(BIO *cbio, const char *host, |
| 1494 | const char *path, |
| 1495 | const STACK_OF(CONF_VALUE) *headers, |
| 1496 | OCSP_REQUEST *req, int req_timeout) |
| 1497 | { |
| 1498 | int fd; |
| 1499 | int rv; |
| 1500 | int i; |
| 1501 | int add_host = 1; |
| 1502 | OCSP_REQ_CTX *ctx = NULL; |
| 1503 | OCSP_RESPONSE *rsp = NULL; |
| 1504 | fd_set confds; |
| 1505 | struct timeval tv; |
| 1506 | |
| 1507 | if (req_timeout != -1) |
| 1508 | BIO_set_nbio(cbio, 1); |
| 1509 | |
| 1510 | rv = BIO_do_connect(cbio); |
| 1511 | |
| 1512 | if ((rv <= 0) && ((req_timeout == -1) || !BIO_should_retry(cbio))) { |
| 1513 | BIO_puts(bio_err, "Error connecting BIO\n"); |
| 1514 | return NULL; |
| 1515 | } |
| 1516 | |
| 1517 | if (BIO_get_fd(cbio, &fd) < 0) { |
| 1518 | BIO_puts(bio_err, "Can't get connection fd\n"); |
| 1519 | goto err; |
| 1520 | } |
| 1521 | |
| 1522 | if (req_timeout != -1 && rv <= 0) { |
| 1523 | FD_ZERO(&confds); |
| 1524 | openssl_fdset(fd, &confds); |
| 1525 | tv.tv_usec = 0; |
| 1526 | tv.tv_sec = req_timeout; |
| 1527 | rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv); |
| 1528 | if (rv == 0) { |
| 1529 | BIO_puts(bio_err, "Timeout on connect\n"); |
| 1530 | return NULL; |
| 1531 | } |
| 1532 | } |
| 1533 | |
| 1534 | ctx = OCSP_sendreq_new(cbio, path, NULL, -1); |
| 1535 | if (ctx == NULL) |
| 1536 | return NULL; |
| 1537 | |
| 1538 | for (i = 0; i < sk_CONF_VALUE_num(headers); i++) { |
| 1539 | CONF_VALUE *hdr = sk_CONF_VALUE_value(headers, i); |
| 1540 | if (add_host == 1 && strcasecmp("host", hdr->name) == 0) |
| 1541 | add_host = 0; |
| 1542 | if (!OCSP_REQ_CTX_add1_header(ctx, hdr->name, hdr->value)) |
| 1543 | goto err; |
| 1544 | } |
| 1545 | |
| 1546 | if (add_host == 1 && OCSP_REQ_CTX_add1_header(ctx, "Host", host) == 0) |
| 1547 | goto err; |
| 1548 | |
| 1549 | if (!OCSP_REQ_CTX_set1_req(ctx, req)) |
| 1550 | goto err; |
| 1551 | |
| 1552 | for (;;) { |
| 1553 | rv = OCSP_sendreq_nbio(&rsp, ctx); |
| 1554 | if (rv != -1) |
| 1555 | break; |
| 1556 | if (req_timeout == -1) |
| 1557 | continue; |
| 1558 | FD_ZERO(&confds); |
| 1559 | openssl_fdset(fd, &confds); |
| 1560 | tv.tv_usec = 0; |
| 1561 | tv.tv_sec = req_timeout; |
| 1562 | if (BIO_should_read(cbio)) { |
| 1563 | rv = select(fd + 1, (void *)&confds, NULL, NULL, &tv); |
| 1564 | } else if (BIO_should_write(cbio)) { |
| 1565 | rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv); |
| 1566 | } else { |
| 1567 | BIO_puts(bio_err, "Unexpected retry condition\n"); |
| 1568 | goto err; |
| 1569 | } |
| 1570 | if (rv == 0) { |
| 1571 | BIO_puts(bio_err, "Timeout on request\n"); |
| 1572 | break; |
| 1573 | } |
| 1574 | if (rv == -1) { |
| 1575 | BIO_puts(bio_err, "Select error\n"); |
| 1576 | break; |
| 1577 | } |
| 1578 | |
| 1579 | } |
| 1580 | err: |
| 1581 | OCSP_REQ_CTX_free(ctx); |
| 1582 | |
| 1583 | return rsp; |
| 1584 | } |
| 1585 | |
| 1586 | OCSP_RESPONSE *process_responder(OCSP_REQUEST *req, |
| 1587 | const char *host, const char *path, |
| 1588 | const char *port, int use_ssl, |
| 1589 | STACK_OF(CONF_VALUE) *headers, |
| 1590 | int req_timeout) |
| 1591 | { |
| 1592 | BIO *cbio = NULL; |
| 1593 | SSL_CTX *ctx = NULL; |
| 1594 | OCSP_RESPONSE *resp = NULL; |
| 1595 | |
| 1596 | cbio = BIO_new_connect(host); |
| 1597 | if (cbio == NULL) { |
| 1598 | BIO_printf(bio_err, "Error creating connect BIO\n"); |
| 1599 | goto end; |
| 1600 | } |
| 1601 | if (port != NULL) |
| 1602 | BIO_set_conn_port(cbio, port); |
| 1603 | if (use_ssl == 1) { |
| 1604 | BIO *sbio; |
| 1605 | ctx = SSL_CTX_new(TLS_client_method()); |
| 1606 | if (ctx == NULL) { |
| 1607 | BIO_printf(bio_err, "Error creating SSL context.\n"); |
| 1608 | goto end; |
| 1609 | } |
| 1610 | SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY); |
| 1611 | sbio = BIO_new_ssl(ctx, 1); |
| 1612 | cbio = BIO_push(sbio, cbio); |
| 1613 | } |
| 1614 | |
| 1615 | resp = query_responder(cbio, host, path, headers, req, req_timeout); |
| 1616 | if (resp == NULL) |
| 1617 | BIO_printf(bio_err, "Error querying OCSP responder\n"); |
| 1618 | end: |
| 1619 | BIO_free_all(cbio); |
| 1620 | SSL_CTX_free(ctx); |
| 1621 | return resp; |
| 1622 | } |
| 1623 | #endif |