2 * Copyright 2007-2021 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright Nokia 2007-2019
4 * Copyright Siemens AG 2015-2019
6 * Licensed under the Apache License 2.0 (the "License"). You may not use
7 * this file except in compliance with the License. You can obtain a copy
8 * in the file LICENSE in the source distribution or at
9 * https://www.openssl.org/source/license.html
12 #include "cmp_local.h"
13 #include "internal/cryptlib.h"
15 /* explicit #includes not strictly needed since implied by the above: */
16 #include <openssl/bio.h>
17 #include <openssl/cmp.h>
18 #include <openssl/err.h>
19 #include <openssl/evp.h>
20 #include <openssl/x509v3.h>
22 #include "openssl/cmp_util.h"
24 #define IS_CREP(t) ((t) == OSSL_CMP_PKIBODY_IP || (t) == OSSL_CMP_PKIBODY_CP \
25 || (t) == OSSL_CMP_PKIBODY_KUP)
28 * Evaluate whether there's an exception (violating the standard) configured for
29 * handling negative responses without protection or with invalid protection.
30 * Returns 1 on acceptance, 0 on rejection, or -1 on (internal) error.
32 static int unprotected_exception(const OSSL_CMP_CTX *ctx,
33 const OSSL_CMP_MSG *rep,
34 int invalid_protection,
35 int expected_type /* ignored here */)
37 int rcvd_type = ossl_cmp_msg_get_bodytype(rep /* may be NULL */);
38 const char *msg_type = NULL;
40 if (!ossl_assert(ctx != NULL && rep != NULL))
43 if (!ctx->unprotectedErrors)
47 case OSSL_CMP_PKIBODY_ERROR:
48 msg_type = "error response";
50 case OSSL_CMP_PKIBODY_RP:
53 ossl_cmp_revrepcontent_get_pkisi(rep->body->value.rp,
58 if (ossl_cmp_pkisi_get_status(si) == OSSL_CMP_PKISTATUS_rejection)
59 msg_type = "revocation response message with rejection status";
62 case OSSL_CMP_PKIBODY_PKICONF:
63 msg_type = "PKI Confirmation message";
66 if (IS_CREP(rcvd_type)) {
67 OSSL_CMP_CERTREPMESSAGE *crepmsg = rep->body->value.ip;
68 OSSL_CMP_CERTRESPONSE *crep =
69 ossl_cmp_certrepmessage_get0_certresponse(crepmsg,
72 if (sk_OSSL_CMP_CERTRESPONSE_num(crepmsg->response) > 1)
74 /* TODO: handle potentially multiple CertResponses in CertRepMsg */
77 if (ossl_cmp_pkisi_get_status(crep->status)
78 == OSSL_CMP_PKISTATUS_rejection)
79 msg_type = "CertRepMessage with rejection status";
84 ossl_cmp_log2(WARN, ctx, "ignoring %s protection of %s",
85 invalid_protection ? "invalid" : "missing", msg_type);
89 /* Save error info from PKIStatusInfo field of a certresponse into ctx */
90 static int save_statusInfo(OSSL_CMP_CTX *ctx, OSSL_CMP_PKISI *si)
93 OSSL_CMP_PKIFREETEXT *ss;
95 if (!ossl_assert(ctx != NULL && si != NULL))
98 if ((ctx->status = ossl_cmp_pkisi_get_status(si)) < 0)
101 ctx->failInfoCode = 0;
102 if (si->failInfo != NULL) {
103 for (i = 0; i <= OSSL_CMP_PKIFAILUREINFO_MAX; i++) {
104 if (ASN1_BIT_STRING_get_bit(si->failInfo, i))
105 ctx->failInfoCode |= (1 << i);
109 if (!ossl_cmp_ctx_set0_statusString(ctx, sk_ASN1_UTF8STRING_new_null())
110 || (ctx->statusString == NULL))
113 ss = si->statusString; /* may be NULL */
114 for (i = 0; i < sk_ASN1_UTF8STRING_num(ss); i++) {
115 ASN1_UTF8STRING *str = sk_ASN1_UTF8STRING_value(ss, i);
117 if (!sk_ASN1_UTF8STRING_push(ctx->statusString, ASN1_STRING_dup(str)))
124 * Perform the generic aspects of sending a request and receiving a response.
125 * Returns 1 on success and provides the received PKIMESSAGE in *rep.
126 * Returns 0 on error.
127 * Regardless of success, caller is responsible for freeing *rep (unless NULL).
129 static int send_receive_check(OSSL_CMP_CTX *ctx, const OSSL_CMP_MSG *req,
130 OSSL_CMP_MSG **rep, int expected_type)
132 int is_enrollment = IS_CREP(expected_type)
133 || expected_type == OSSL_CMP_PKIBODY_POLLREP
134 || expected_type == OSSL_CMP_PKIBODY_PKICONF;
135 const char *req_type_str =
136 ossl_cmp_bodytype_to_string(ossl_cmp_msg_get_bodytype(req));
137 const char *expected_type_str = ossl_cmp_bodytype_to_string(expected_type);
140 time_t now = time(NULL);
142 OSSL_CMP_transfer_cb_t transfer_cb = ctx->transfer_cb;
144 if (transfer_cb == NULL)
145 transfer_cb = OSSL_CMP_MSG_http_perform;
148 msg_timeout = ctx->msg_timeout; /* backup original value */
149 if (is_enrollment && ctx->total_timeout > 0 /* timeout is not infinite */) {
150 if (now >= ctx->end_time) {
151 ERR_raise(ERR_LIB_CMP, CMP_R_TOTAL_TIMEOUT);
154 if (!ossl_assert(ctx->end_time - time(NULL) < INT_MAX)) {
155 /* actually cannot happen due to assignment in initial_certreq() */
156 ERR_raise(ERR_LIB_CMP, CMP_R_INVALID_ARGS);
159 time_left = (int)(ctx->end_time - now);
160 if (ctx->msg_timeout == 0 || time_left < ctx->msg_timeout)
161 ctx->msg_timeout = time_left;
164 /* should print error queue since transfer_cb may call ERR_clear_error() */
165 OSSL_CMP_CTX_print_errors(ctx);
167 ossl_cmp_log1(INFO, ctx, "sending %s", req_type_str);
169 *rep = (*transfer_cb)(ctx, req);
170 ctx->msg_timeout = msg_timeout; /* restore original value */
173 ERR_raise_data(ERR_LIB_CMP,
174 ctx->total_timeout > 0 && time(NULL) >= ctx->end_time ?
175 CMP_R_TOTAL_TIMEOUT : CMP_R_TRANSFER_ERROR,
176 "request sent: %s, expected response: %s",
177 req_type_str, expected_type_str);
181 bt = ossl_cmp_msg_get_bodytype(*rep);
183 * The body type in the 'bt' variable is not yet verified.
184 * Still we use this preliminary value already for a progress report because
185 * the following msg verification may also produce log entries and may fail.
187 ossl_cmp_log1(INFO, ctx, "received %s", ossl_cmp_bodytype_to_string(bt));
189 /* copy received extraCerts to ctx->extraCertsIn so they can be retrieved */
190 if (bt != OSSL_CMP_PKIBODY_POLLREP && bt != OSSL_CMP_PKIBODY_PKICONF
191 && !ossl_cmp_ctx_set1_extraCertsIn(ctx, (*rep)->extraCerts))
194 if (!ossl_cmp_msg_check_update(ctx, *rep, unprotected_exception,
198 if (bt == expected_type
199 /* as an answer to polling, there could be IP/CP/KUP: */
200 || (IS_CREP(bt) && expected_type == OSSL_CMP_PKIBODY_POLLREP))
203 /* received message type is not one of the expected ones (e.g., error) */
204 ERR_raise(ERR_LIB_CMP, bt == OSSL_CMP_PKIBODY_ERROR ? CMP_R_RECEIVED_ERROR :
205 CMP_R_UNEXPECTED_PKIBODY); /* in next line for mkerr.pl */
207 if (bt != OSSL_CMP_PKIBODY_ERROR) {
208 ERR_add_error_data(3, "message type is '",
209 ossl_cmp_bodytype_to_string(bt), "'");
211 OSSL_CMP_ERRORMSGCONTENT *emc = (*rep)->body->value.error;
212 OSSL_CMP_PKISI *si = emc->pKIStatusInfo;
213 char buf[OSSL_CMP_PKISI_BUFLEN];
215 if (save_statusInfo(ctx, si)
216 && OSSL_CMP_CTX_snprint_PKIStatus(ctx, buf,
217 sizeof(buf)) != NULL)
218 ERR_add_error_data(1, buf);
219 if (emc->errorCode != NULL
220 && BIO_snprintf(buf, sizeof(buf), "; errorCode: %ld",
221 ASN1_INTEGER_get(emc->errorCode)) > 0)
222 ERR_add_error_data(1, buf);
223 if (emc->errorDetails != NULL) {
224 char *text = sk_ASN1_UTF8STRING2text(emc->errorDetails, ", ",
225 OSSL_CMP_PKISI_BUFLEN - 1);
228 ERR_add_error_data(2, "; errorDetails: ", text);
231 if (ctx->status != OSSL_CMP_PKISTATUS_rejection) {
232 ERR_raise(ERR_LIB_CMP, CMP_R_UNEXPECTED_PKISTATUS);
233 if (ctx->status == OSSL_CMP_PKISTATUS_waiting)
234 ctx->status = OSSL_CMP_PKISTATUS_rejection;
241 * When a 'waiting' PKIStatus has been received, this function is used to
242 * poll, which should yield a pollRep or finally a CertRepMessage in ip/cp/kup.
243 * On receiving a pollRep, which includes a checkAfter value, it return this
244 * value if sleep == 0, else it sleeps as long as indicated and retries.
246 * A transaction timeout is enabled if ctx->total_timeout is > 0.
247 * In this case polling will continue until the timeout is reached and then
248 * polling is done a last time even if this is before the "checkAfter" time.
250 * Returns -1 on receiving pollRep if sleep == 0, setting the checkAfter value.
251 * Returns 1 on success and provides the received PKIMESSAGE in *rep.
252 * In this case the caller is responsible for freeing *rep.
253 * Returns 0 on error (which includes the case that timeout has been reached).
255 static int poll_for_response(OSSL_CMP_CTX *ctx, int sleep, int rid,
256 OSSL_CMP_MSG **rep, int *checkAfter)
258 OSSL_CMP_MSG *preq = NULL;
259 OSSL_CMP_MSG *prep = NULL;
262 "received 'waiting' PKIStatus, starting to poll for response");
265 /* TODO: handle potentially multiple poll requests per message */
266 if ((preq = ossl_cmp_pollReq_new(ctx, rid)) == NULL)
269 if (!send_receive_check(ctx, preq, &prep, OSSL_CMP_PKIBODY_POLLREP))
272 /* handle potential pollRep */
273 if (ossl_cmp_msg_get_bodytype(prep) == OSSL_CMP_PKIBODY_POLLREP) {
274 OSSL_CMP_POLLREPCONTENT *prc = prep->body->value.pollRep;
275 OSSL_CMP_POLLREP *pollRep = NULL;
277 char str[OSSL_CMP_PKISI_BUFLEN];
280 /* TODO: handle potentially multiple elements in pollRep */
281 if (sk_OSSL_CMP_POLLREP_num(prc) > 1) {
282 ERR_raise(ERR_LIB_CMP, CMP_R_MULTIPLE_RESPONSES_NOT_SUPPORTED);
285 pollRep = ossl_cmp_pollrepcontent_get0_pollrep(prc, rid);
289 if (!ASN1_INTEGER_get_int64(&check_after, pollRep->checkAfter)) {
290 ERR_raise(ERR_LIB_CMP, CMP_R_BAD_CHECKAFTER_IN_POLLREP);
293 if (check_after < 0 || (uint64_t)check_after
294 > (sleep ? ULONG_MAX / 1000 : INT_MAX)) {
295 ERR_raise(ERR_LIB_CMP, CMP_R_CHECKAFTER_OUT_OF_RANGE);
296 if (BIO_snprintf(str, OSSL_CMP_PKISI_BUFLEN, "value = %jd",
298 ERR_add_error_data(1, str);
301 if (ctx->total_timeout > 0) { /* timeout is not infinite */
302 const int exp = 5; /* expected max time per msg round trip */
303 int64_t time_left = (int64_t)(ctx->end_time - exp - time(NULL));
305 if (time_left <= 0) {
306 ERR_raise(ERR_LIB_CMP, CMP_R_TOTAL_TIMEOUT);
309 if (time_left < check_after)
310 check_after = time_left;
311 /* poll one last time just when timeout was reached */
314 if (pollRep->reason == NULL
315 || (len = BIO_snprintf(str, OSSL_CMP_PKISI_BUFLEN,
316 " with reason = '")) < 0) {
319 char *text = sk_ASN1_UTF8STRING2text(pollRep->reason, ", ",
320 sizeof(str) - len - 2);
323 || BIO_snprintf(str + len, sizeof(str) - len,
328 ossl_cmp_log2(INFO, ctx,
329 "received polling response%s; checkAfter = %ld seconds",
332 OSSL_CMP_MSG_free(preq);
334 OSSL_CMP_MSG_free(prep);
337 ossl_sleep((unsigned long)(1000 * check_after));
339 if (checkAfter != NULL)
340 *checkAfter = (int)check_after;
341 return -1; /* exits the loop */
344 ossl_cmp_info(ctx, "received ip/cp/kup after polling");
345 /* any other body type has been rejected by send_receive_check() */
352 OSSL_CMP_MSG_free(preq);
357 OSSL_CMP_MSG_free(preq);
358 OSSL_CMP_MSG_free(prep);
362 /* Send certConf for IR, CR or KUR sequences and check response */
363 int ossl_cmp_exchange_certConf(OSSL_CMP_CTX *ctx, int fail_info,
366 OSSL_CMP_MSG *certConf;
367 OSSL_CMP_MSG *PKIconf = NULL;
370 /* OSSL_CMP_certConf_new() also checks if all necessary options are set */
371 if ((certConf = ossl_cmp_certConf_new(ctx, fail_info, txt)) == NULL)
374 res = send_receive_check(ctx, certConf, &PKIconf, OSSL_CMP_PKIBODY_PKICONF);
377 OSSL_CMP_MSG_free(certConf);
378 OSSL_CMP_MSG_free(PKIconf);
382 /* Send given error and check response */
383 int ossl_cmp_exchange_error(OSSL_CMP_CTX *ctx, int status, int fail_info,
384 const char *txt, int errorCode, const char *details)
386 OSSL_CMP_MSG *error = NULL;
387 OSSL_CMP_PKISI *si = NULL;
388 OSSL_CMP_MSG *PKIconf = NULL;
391 if ((si = OSSL_CMP_STATUSINFO_new(status, fail_info, txt)) == NULL)
393 /* ossl_cmp_error_new() also checks if all necessary options are set */
394 if ((error = ossl_cmp_error_new(ctx, si, errorCode, details, 0)) == NULL)
397 res = send_receive_check(ctx, error, &PKIconf, OSSL_CMP_PKIBODY_PKICONF);
400 OSSL_CMP_MSG_free(error);
401 OSSL_CMP_PKISI_free(si);
402 OSSL_CMP_MSG_free(PKIconf);
407 * Retrieve a copy of the certificate, if any, from the given CertResponse.
408 * Take into account PKIStatusInfo of CertResponse in ctx, report it on error.
409 * Returns NULL if not found or on error.
411 static X509 *get1_cert_status(OSSL_CMP_CTX *ctx, int bodytype,
412 OSSL_CMP_CERTRESPONSE *crep)
414 char buf[OSSL_CMP_PKISI_BUFLEN];
418 if (!ossl_assert(ctx != NULL && crep != NULL))
421 privkey = OSSL_CMP_CTX_get0_newPkey(ctx, 1);
422 switch (ossl_cmp_pkisi_get_status(crep->status)) {
423 case OSSL_CMP_PKISTATUS_waiting:
425 "received \"waiting\" status for cert when actually aiming to extract cert");
426 ERR_raise(ERR_LIB_CMP, CMP_R_ENCOUNTERED_WAITING);
428 case OSSL_CMP_PKISTATUS_grantedWithMods:
429 ossl_cmp_warn(ctx, "received \"grantedWithMods\" for certificate");
431 case OSSL_CMP_PKISTATUS_accepted:
433 /* get all information in case of a rejection before going to error */
434 case OSSL_CMP_PKISTATUS_rejection:
435 ossl_cmp_err(ctx, "received \"rejection\" status rather than cert");
436 ERR_raise(ERR_LIB_CMP, CMP_R_REQUEST_REJECTED_BY_SERVER);
438 case OSSL_CMP_PKISTATUS_revocationWarning:
440 "received \"revocationWarning\" - a revocation of the cert is imminent");
442 case OSSL_CMP_PKISTATUS_revocationNotification:
444 "received \"revocationNotification\" - a revocation of the cert has occurred");
446 case OSSL_CMP_PKISTATUS_keyUpdateWarning:
447 if (bodytype != OSSL_CMP_PKIBODY_KUR) {
448 ERR_raise(ERR_LIB_CMP, CMP_R_ENCOUNTERED_KEYUPDATEWARNING);
453 ossl_cmp_log1(ERROR, ctx,
454 "received unsupported PKIStatus %d for certificate",
456 ERR_raise(ERR_LIB_CMP, CMP_R_UNKNOWN_PKISTATUS);
459 crt = ossl_cmp_certresponse_get1_cert(crep, ctx, privkey);
460 if (crt == NULL) /* according to PKIStatus, we can expect a cert */
461 ERR_raise(ERR_LIB_CMP, CMP_R_CERTIFICATE_NOT_FOUND);
466 if (OSSL_CMP_CTX_snprint_PKIStatus(ctx, buf, sizeof(buf)) != NULL)
467 ERR_add_error_data(1, buf);
472 * Callback fn validating that the new certificate can be verified, using
473 * ctx->certConf_cb_arg, which has been initialized using opt_out_trusted, and
474 * ctx->untrusted, which at this point already contains msg->extraCerts.
475 * Returns 0 on acceptance, else a bit field reflecting PKIFailureInfo.
476 * Quoting from RFC 4210 section 5.1. Overall PKI Message:
477 * The extraCerts field can contain certificates that may be useful to
478 * the recipient. For example, this can be used by a CA or RA to
479 * present an end entity with certificates that it needs to verify its
480 * own new certificate (if, for example, the CA that issued the end
481 * entity's certificate is not a root CA for the end entity). Note that
482 * this field does not necessarily contain a certification path; the
483 * recipient may have to sort, select from, or otherwise process the
484 * extra certificates in order to use them.
485 * Note: While often handy, there is no hard requirement by CMP that
486 * an EE must be able to validate the certificates it gets enrolled.
488 int OSSL_CMP_certConf_cb(OSSL_CMP_CTX *ctx, X509 *cert, int fail_info,
491 X509_STORE *out_trusted = OSSL_CMP_CTX_get_certConf_cb_arg(ctx);
492 STACK_OF(X509) *chain = NULL;
493 (void)text; /* make (artificial) use of var to prevent compiler warning */
495 if (fail_info != 0) /* accept any error flagged by CMP core library */
498 ossl_cmp_debug(ctx, "trying to build chain for newly enrolled cert");
499 chain = ossl_cmp_build_cert_chain(ctx->libctx, ctx->propq,
500 out_trusted /* may be NULL */,
501 ctx->untrusted, cert);
502 if (sk_X509_num(chain) > 0)
503 X509_free(sk_X509_shift(chain)); /* remove leaf (EE) cert */
504 if (out_trusted != NULL) {
506 ossl_cmp_err(ctx, "failed building chain for newly enrolled cert");
507 fail_info = 1 << OSSL_CMP_PKIFAILUREINFO_incorrectData;
510 "succeeded building proper chain for newly enrolled cert");
512 } else if (chain == NULL) {
513 ossl_cmp_warn(ctx, "could not build approximate chain for newly enrolled cert, resorting to received extraCerts");
514 chain = OSSL_CMP_CTX_get1_extraCertsIn(ctx);
517 "success building approximate chain for newly enrolled cert");
519 (void)ossl_cmp_ctx_set1_newChain(ctx, chain);
520 sk_X509_pop_free(chain, X509_free);
526 * Perform the generic handling of certificate responses for IR/CR/KUR/P10CR.
527 * Returns -1 on receiving pollRep if sleep == 0, setting the checkAfter value.
528 * Returns 1 on success and provides the received PKIMESSAGE in *resp.
529 * Returns 0 on error (which includes the case that timeout has been reached).
530 * Regardless of success, caller is responsible for freeing *resp (unless NULL).
532 static int cert_response(OSSL_CMP_CTX *ctx, int sleep, int rid,
533 OSSL_CMP_MSG **resp, int *checkAfter,
534 int req_type, int expected_type)
536 EVP_PKEY *rkey = OSSL_CMP_CTX_get0_newPkey(ctx /* may be NULL */, 0);
537 int fail_info = 0; /* no failure */
538 const char *txt = NULL;
539 OSSL_CMP_CERTREPMESSAGE *crepmsg;
540 OSSL_CMP_CERTRESPONSE *crep;
541 OSSL_CMP_certConf_cb_t cb;
546 if (!ossl_assert(ctx != NULL))
550 crepmsg = (*resp)->body->value.ip; /* same for cp and kup */
551 if (sk_OSSL_CMP_CERTRESPONSE_num(crepmsg->response) > 1) {
552 ERR_raise(ERR_LIB_CMP, CMP_R_MULTIPLE_RESPONSES_NOT_SUPPORTED);
555 /* TODO: handle potentially multiple CertResponses in CertRepMsg */
556 crep = ossl_cmp_certrepmessage_get0_certresponse(crepmsg, rid);
559 if (!save_statusInfo(ctx, crep->status))
562 /* for OSSL_CMP_PKIBODY_P10CR learn CertReqId from response */
563 rid = ossl_cmp_asn1_get_int(crep->certReqId);
565 ERR_raise(ERR_LIB_CMP, CMP_R_BAD_REQUEST_ID);
570 if (ossl_cmp_pkisi_get_status(crep->status) == OSSL_CMP_PKISTATUS_waiting) {
571 OSSL_CMP_MSG_free(*resp);
573 if ((ret = poll_for_response(ctx, sleep, rid, resp, checkAfter)) != 0) {
574 if (ret == -1) /* at this point implies sleep == 0 */
575 return ret; /* waiting */
576 goto retry; /* got ip/cp/kup, which may still indicate 'waiting' */
578 ERR_raise(ERR_LIB_CMP, CMP_R_POLLING_FAILED);
583 cert = get1_cert_status(ctx, (*resp)->body->type, crep);
585 ERR_add_error_data(1, "; cannot extract certificate from response");
588 if (!ossl_cmp_ctx_set0_newCert(ctx, cert))
592 * if the CMP server returned certificates in the caPubs field, copy them
593 * to the context so that they can be retrieved if necessary
595 if (crepmsg->caPubs != NULL
596 && !ossl_cmp_ctx_set1_caPubs(ctx, crepmsg->caPubs))
599 subj = X509_NAME_oneline(X509_get_subject_name(cert), NULL, 0);
601 /* X509_check_private_key() also works if rkey is just public key */
602 && !(X509_check_private_key(ctx->newCert, rkey))) {
603 fail_info = 1 << OSSL_CMP_PKIFAILUREINFO_incorrectData;
604 txt = "public key in new certificate does not match our enrollment key";
606 * not calling (void)ossl_cmp_exchange_error(ctx,
607 * OSSL_CMP_PKISTATUS_rejection, fail_info, txt)
608 * not throwing CMP_R_CERTIFICATE_NOT_ACCEPTED with txt
610 * since we better leave this for the certConf_cb to decide
615 * Execute the certification checking callback function,
616 * which can determine whether to accept a newly enrolled certificate.
617 * It may overrule the pre-decision reflected in 'fail_info' and '*txt'.
619 cb = ctx->certConf_cb != NULL ? ctx->certConf_cb : OSSL_CMP_certConf_cb;
620 if ((fail_info = cb(ctx, ctx->newCert, fail_info, &txt)) != 0
622 txt = "CMP client did not accept it";
623 if (fail_info != 0) /* immediately log error before any certConf exchange */
624 ossl_cmp_log1(ERROR, ctx,
625 "rejecting newly enrolled cert with subject: %s", subj);
628 * TODO: better move certConf exchange to do_certreq_seq() such that
629 * also more low-level errors with CertReqMessages get reported to server
631 if (!ctx->disableConfirm
632 && !ossl_cmp_hdr_has_implicitConfirm((*resp)->header)) {
633 if (!ossl_cmp_exchange_certConf(ctx, fail_info, txt))
637 /* not throwing failure earlier as transfer_cb may call ERR_clear_error() */
638 if (fail_info != 0) {
639 ERR_raise_data(ERR_LIB_CMP, CMP_R_CERTIFICATE_NOT_ACCEPTED,
640 "rejecting newly enrolled cert with subject: %s; %s",
648 static int initial_certreq(OSSL_CMP_CTX *ctx,
649 int req_type, const OSSL_CRMF_MSG *crm,
650 OSSL_CMP_MSG **p_rep, int rep_type)
656 if (!ossl_cmp_ctx_set0_newCert(ctx, NULL))
659 if (ctx->total_timeout > 0) /* else ctx->end_time is not used */
660 ctx->end_time = time(NULL) + ctx->total_timeout;
662 /* also checks if all necessary options are set */
663 if ((req = ossl_cmp_certreq_new(ctx, req_type, crm)) == NULL)
666 res = send_receive_check(ctx, req, p_rep, rep_type);
667 OSSL_CMP_MSG_free(req);
671 int OSSL_CMP_try_certreq(OSSL_CMP_CTX *ctx, int req_type,
672 const OSSL_CRMF_MSG *crm, int *checkAfter)
674 OSSL_CMP_MSG *rep = NULL;
675 int is_p10 = req_type == OSSL_CMP_PKIBODY_P10CR;
676 int rid = is_p10 ? -1 : OSSL_CMP_CERTREQID;
677 int rep_type = is_p10 ? OSSL_CMP_PKIBODY_CP : req_type + 1;
681 ERR_raise(ERR_LIB_CMP, CMP_R_NULL_ARGUMENT);
685 if (ctx->status != OSSL_CMP_PKISTATUS_waiting) { /* not polling already */
686 if (!initial_certreq(ctx, req_type, crm, &rep, rep_type))
690 return ossl_cmp_exchange_error(ctx, OSSL_CMP_PKISTATUS_rejection,
691 0 /* TODO better fail_info value? */,
692 "polling aborted", 0 /* errorCode */,
694 res = poll_for_response(ctx, 0 /* no sleep */, rid, &rep, checkAfter);
695 if (res <= 0) /* waiting or error */
698 res = cert_response(ctx, 0 /* no sleep */, rid, &rep, checkAfter,
702 OSSL_CMP_MSG_free(rep);
707 * Do the full sequence CR/IR/KUR/P10CR, CP/IP/KUP/CP,
708 * certConf, PKIconf, and polling if required.
709 * Will sleep as long as indicated by the server (according to checkAfter).
710 * All enrollment options need to be present in the context.
711 * TODO: another function to request two certificates at once should be created.
712 * Returns pointer to received certificate, or NULL if none was received.
714 X509 *OSSL_CMP_exec_certreq(OSSL_CMP_CTX *ctx, int req_type,
715 const OSSL_CRMF_MSG *crm)
718 OSSL_CMP_MSG *rep = NULL;
719 int is_p10 = req_type == OSSL_CMP_PKIBODY_P10CR;
720 int rid = is_p10 ? -1 : OSSL_CMP_CERTREQID;
721 int rep_type = is_p10 ? OSSL_CMP_PKIBODY_CP : req_type + 1;
725 ERR_raise(ERR_LIB_CMP, CMP_R_NULL_ARGUMENT);
729 if (!initial_certreq(ctx, req_type, crm, &rep, rep_type))
732 if (cert_response(ctx, 1 /* sleep */, rid, &rep, NULL, req_type, rep_type)
736 result = ctx->newCert;
738 OSSL_CMP_MSG_free(rep);
742 int OSSL_CMP_exec_RR_ses(OSSL_CMP_CTX *ctx)
744 OSSL_CMP_MSG *rr = NULL;
745 OSSL_CMP_MSG *rp = NULL;
746 const int num_RevDetails = 1;
747 const int rsid = OSSL_CMP_REVREQSID;
748 OSSL_CMP_REVREPCONTENT *rrep = NULL;
749 OSSL_CMP_PKISI *si = NULL;
750 char buf[OSSL_CMP_PKISI_BUFLEN];
754 ERR_raise(ERR_LIB_CMP, CMP_R_INVALID_ARGS);
757 if (ctx->oldCert == NULL && ctx->p10CSR == NULL) {
758 ERR_raise(ERR_LIB_CMP, CMP_R_MISSING_REFERENCE_CERT);
763 /* OSSL_CMP_rr_new() also checks if all necessary options are set */
764 if ((rr = ossl_cmp_rr_new(ctx)) == NULL)
767 if (!send_receive_check(ctx, rr, &rp, OSSL_CMP_PKIBODY_RP))
770 rrep = rp->body->value.rp;
771 #ifndef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
772 if (sk_OSSL_CMP_PKISI_num(rrep->status) != num_RevDetails) {
773 ERR_raise(ERR_LIB_CMP, CMP_R_WRONG_RP_COMPONENT_COUNT);
777 if (sk_OSSL_CMP_PKISI_num(rrep->status) < 1) {
778 ERR_raise(ERR_LIB_CMP, CMP_R_WRONG_RP_COMPONENT_COUNT);
783 /* evaluate PKIStatus field */
784 si = ossl_cmp_revrepcontent_get_pkisi(rrep, rsid);
785 if (!save_statusInfo(ctx, si))
787 switch (ossl_cmp_pkisi_get_status(si)) {
788 case OSSL_CMP_PKISTATUS_accepted:
789 ossl_cmp_info(ctx, "revocation accepted (PKIStatus=accepted)");
792 case OSSL_CMP_PKISTATUS_grantedWithMods:
793 ossl_cmp_info(ctx, "revocation accepted (PKIStatus=grantedWithMods)");
796 case OSSL_CMP_PKISTATUS_rejection:
797 ERR_raise(ERR_LIB_CMP, CMP_R_REQUEST_REJECTED_BY_SERVER);
799 case OSSL_CMP_PKISTATUS_revocationWarning:
800 ossl_cmp_info(ctx, "revocation accepted (PKIStatus=revocationWarning)");
803 case OSSL_CMP_PKISTATUS_revocationNotification:
804 /* interpretation as warning or error depends on CA */
806 "revocation accepted (PKIStatus=revocationNotification)");
809 case OSSL_CMP_PKISTATUS_waiting:
810 case OSSL_CMP_PKISTATUS_keyUpdateWarning:
811 ERR_raise(ERR_LIB_CMP, CMP_R_UNEXPECTED_PKISTATUS);
814 ERR_raise(ERR_LIB_CMP, CMP_R_UNKNOWN_PKISTATUS);
818 /* check any present CertId in optional revCerts field */
819 if (sk_OSSL_CRMF_CERTID_num(rrep->revCerts) >= 1) {
820 OSSL_CRMF_CERTID *cid;
821 OSSL_CRMF_CERTTEMPLATE *tmpl =
822 sk_OSSL_CMP_REVDETAILS_value(rr->body->value.rr, rsid)->certDetails;
823 const X509_NAME *issuer = OSSL_CRMF_CERTTEMPLATE_get0_issuer(tmpl);
824 ASN1_INTEGER *serial = OSSL_CRMF_CERTTEMPLATE_get0_serialNumber(tmpl);
826 if (sk_OSSL_CRMF_CERTID_num(rrep->revCerts) != num_RevDetails) {
827 ERR_raise(ERR_LIB_CMP, CMP_R_WRONG_RP_COMPONENT_COUNT);
831 if ((cid = ossl_cmp_revrepcontent_get_CertId(rrep, rsid)) == NULL) {
835 if (X509_NAME_cmp(issuer, OSSL_CRMF_CERTID_get0_issuer(cid)) != 0) {
836 #ifndef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
837 ERR_raise(ERR_LIB_CMP, CMP_R_WRONG_CERTID_IN_RP);
842 if (ASN1_INTEGER_cmp(serial,
843 OSSL_CRMF_CERTID_get0_serialNumber(cid)) != 0) {
844 #ifndef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
845 ERR_raise(ERR_LIB_CMP, CMP_R_WRONG_SERIAL_IN_RP);
852 /* check number of any optionally present crls */
853 if (rrep->crls != NULL && sk_X509_CRL_num(rrep->crls) != num_RevDetails) {
854 ERR_raise(ERR_LIB_CMP, CMP_R_WRONG_RP_COMPONENT_COUNT);
861 && OSSL_CMP_CTX_snprint_PKIStatus(ctx, buf, sizeof(buf)) != NULL)
862 ERR_add_error_data(1, buf);
865 OSSL_CMP_MSG_free(rr);
866 OSSL_CMP_MSG_free(rp);
870 STACK_OF(OSSL_CMP_ITAV) *OSSL_CMP_exec_GENM_ses(OSSL_CMP_CTX *ctx)
873 OSSL_CMP_MSG *genp = NULL;
874 STACK_OF(OSSL_CMP_ITAV) *rcvd_itavs = NULL;
877 ERR_raise(ERR_LIB_CMP, CMP_R_INVALID_ARGS);
882 if ((genm = ossl_cmp_genm_new(ctx)) == NULL)
885 if (!send_receive_check(ctx, genm, &genp, OSSL_CMP_PKIBODY_GENP))
888 /* received stack of itavs not to be freed with the genp */
889 rcvd_itavs = genp->body->value.genp;
890 genp->body->value.genp = NULL;
893 OSSL_CMP_MSG_free(genm);
894 OSSL_CMP_MSG_free(genp);
896 return rcvd_itavs; /* recv_itavs == NULL indicates an error */