2 * Copyright 2007-2020 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_STACK_OF(ASN1_UTF8STRING)
25 DEFINE_STACK_OF(OSSL_CMP_CERTRESPONSE)
26 DEFINE_STACK_OF(OSSL_CMP_PKISI)
27 DEFINE_STACK_OF(OSSL_CRMF_CERTID)
29 #define IS_CREP(t) ((t) == OSSL_CMP_PKIBODY_IP || (t) == OSSL_CMP_PKIBODY_CP \
30 || (t) == OSSL_CMP_PKIBODY_KUP)
33 * Evaluate whether there's an exception (violating the standard) configured for
34 * handling negative responses without protection or with invalid protection.
35 * Returns 1 on acceptance, 0 on rejection, or -1 on (internal) error.
37 static int unprotected_exception(const OSSL_CMP_CTX *ctx,
38 const OSSL_CMP_MSG *rep,
39 int invalid_protection,
40 int expected_type /* ignored here */)
42 int rcvd_type = ossl_cmp_msg_get_bodytype(rep /* may be NULL */);
43 const char *msg_type = NULL;
45 if (!ossl_assert(ctx != NULL && rep != NULL))
48 if (!ctx->unprotectedErrors)
52 case OSSL_CMP_PKIBODY_ERROR:
53 msg_type = "error response";
55 case OSSL_CMP_PKIBODY_RP:
58 ossl_cmp_revrepcontent_get_pkisi(rep->body->value.rp,
63 if (ossl_cmp_pkisi_get_status(si) == OSSL_CMP_PKISTATUS_rejection)
64 msg_type = "revocation response message with rejection status";
67 case OSSL_CMP_PKIBODY_PKICONF:
68 msg_type = "PKI Confirmation message";
71 if (IS_CREP(rcvd_type)) {
72 OSSL_CMP_CERTREPMESSAGE *crepmsg = rep->body->value.ip;
73 OSSL_CMP_CERTRESPONSE *crep =
74 ossl_cmp_certrepmessage_get0_certresponse(crepmsg,
77 if (sk_OSSL_CMP_CERTRESPONSE_num(crepmsg->response) > 1)
79 /* TODO: handle potentially multiple CertResponses in CertRepMsg */
82 if (ossl_cmp_pkisi_get_status(crep->status)
83 == OSSL_CMP_PKISTATUS_rejection)
84 msg_type = "CertRepMessage with rejection status";
89 ossl_cmp_log2(WARN, ctx, "ignoring %s protection of %s",
90 invalid_protection ? "invalid" : "missing", msg_type);
95 /* Save error info from PKIStatusInfo field of a certresponse into ctx */
96 static int save_statusInfo(OSSL_CMP_CTX *ctx, OSSL_CMP_PKISI *si)
99 OSSL_CMP_PKIFREETEXT *ss;
101 if (!ossl_assert(ctx != NULL && si != NULL))
104 if ((ctx->status = ossl_cmp_pkisi_get_status(si)) < 0)
107 ctx->failInfoCode = 0;
108 if (si->failInfo != NULL) {
109 for (i = 0; i <= OSSL_CMP_PKIFAILUREINFO_MAX; i++) {
110 if (ASN1_BIT_STRING_get_bit(si->failInfo, i))
111 ctx->failInfoCode |= (1 << i);
115 if (!ossl_cmp_ctx_set0_statusString(ctx, sk_ASN1_UTF8STRING_new_null())
116 || (ctx->statusString == NULL))
119 ss = si->statusString; /* may be NULL */
120 for (i = 0; i < sk_ASN1_UTF8STRING_num(ss); i++) {
121 ASN1_UTF8STRING *str = sk_ASN1_UTF8STRING_value(ss, i);
123 if (!sk_ASN1_UTF8STRING_push(ctx->statusString, ASN1_STRING_dup(str)))
130 * Perform the generic aspects of sending a request and receiving a response.
131 * Returns 1 on success and provides the received PKIMESSAGE in *rep.
132 * Returns 0 on error.
133 * Regardless of success, caller is responsible for freeing *rep (unless NULL).
135 static int send_receive_check(OSSL_CMP_CTX *ctx, const OSSL_CMP_MSG *req,
136 OSSL_CMP_MSG **rep, int expected_type)
138 const char *req_type_str =
139 ossl_cmp_bodytype_to_string(ossl_cmp_msg_get_bodytype(req));
140 const char *expected_type_str = ossl_cmp_bodytype_to_string(expected_type);
143 time_t now = time(NULL);
145 OSSL_CMP_transfer_cb_t transfer_cb = ctx->transfer_cb;
147 if (transfer_cb == NULL)
148 transfer_cb = OSSL_CMP_MSG_http_perform;
151 msg_timeout = ctx->msg_timeout; /* backup original value */
152 if ((IS_CREP(expected_type) || expected_type == OSSL_CMP_PKIBODY_POLLREP)
153 && ctx->total_timeout > 0 /* timeout is not infinite */) {
154 if (now >= ctx->end_time) {
155 CMPerr(0, CMP_R_TOTAL_TIMEOUT);
158 if (!ossl_assert(ctx->end_time - time(NULL) < INT_MAX)) {
159 /* cannot really happen due to the assignment in do_certreq_seq() */
160 CMPerr(0, CMP_R_INVALID_ARGS);
163 time_left = (int)(ctx->end_time - now);
164 if (ctx->msg_timeout == 0 || time_left < ctx->msg_timeout)
165 ctx->msg_timeout = time_left;
168 /* should print error queue since transfer_cb may call ERR_clear_error() */
169 OSSL_CMP_CTX_print_errors(ctx);
171 ossl_cmp_log1(INFO, ctx, "sending %s", req_type_str);
173 *rep = (*transfer_cb)(ctx, req);
174 ctx->msg_timeout = msg_timeout; /* restore original value */
177 CMPerr(0, CMP_R_TRANSFER_ERROR); /* or receiving response */
178 ERR_add_error_data(2, "request sent: ", req_type_str);
179 ERR_add_error_data(2, ", expected response: ", expected_type_str);
183 bt = ossl_cmp_msg_get_bodytype(*rep);
185 * The body type in the 'bt' variable is not yet verified.
186 * Still we use this preliminary value already for a progress report because
187 * the following msg verification may also produce log entries and may fail.
189 ossl_cmp_log1(INFO, ctx, "received %s", ossl_cmp_bodytype_to_string(bt));
191 /* copy received extraCerts to ctx->extraCertsIn so they can be retrieved */
192 if (bt != OSSL_CMP_PKIBODY_POLLREP && bt != OSSL_CMP_PKIBODY_PKICONF
193 && !ossl_cmp_ctx_set1_extraCertsIn(ctx, (*rep)->extraCerts))
196 if (!ossl_cmp_msg_check_update(ctx, *rep, unprotected_exception,
200 if (bt == expected_type
201 /* as an answer to polling, there could be IP/CP/KUP: */
202 || (IS_CREP(bt) && expected_type == OSSL_CMP_PKIBODY_POLLREP))
205 /* received message type is not one of the expected ones (e.g., error) */
206 CMPerr(0, bt == OSSL_CMP_PKIBODY_ERROR ? CMP_R_RECEIVED_ERROR :
207 CMP_R_UNEXPECTED_PKIBODY); /* in next line for mkerr.pl */
209 if (bt != OSSL_CMP_PKIBODY_ERROR) {
210 ERR_add_error_data(3, "message type is '",
211 ossl_cmp_bodytype_to_string(bt), "'");
213 OSSL_CMP_ERRORMSGCONTENT *emc = (*rep)->body->value.error;
214 OSSL_CMP_PKISI *si = emc->pKIStatusInfo;
215 char buf[OSSL_CMP_PKISI_BUFLEN];
217 if (save_statusInfo(ctx, si)
218 && OSSL_CMP_CTX_snprint_PKIStatus(ctx, buf,
219 sizeof(buf)) != NULL)
220 ERR_add_error_data(1, buf);
221 if (emc->errorCode != NULL
222 && BIO_snprintf(buf, sizeof(buf), "; errorCode: %ld",
223 ASN1_INTEGER_get(emc->errorCode)) > 0)
224 ERR_add_error_data(1, buf);
225 if (emc->errorDetails != NULL) {
226 char *text = sk_ASN1_UTF8STRING2text(emc->errorDetails, ", ",
227 OSSL_CMP_PKISI_BUFLEN - 1);
230 ERR_add_error_data(2, "; errorDetails: ", text);
233 if (ctx->status != OSSL_CMP_PKISTATUS_rejection) {
234 CMPerr(0, CMP_R_UNEXPECTED_PKISTATUS);
235 if (ctx->status == OSSL_CMP_PKISTATUS_waiting)
236 ctx->status = OSSL_CMP_PKISTATUS_rejection;
243 * When a 'waiting' PKIStatus has been received, this function is used to
244 * poll, which should yield a pollRep or finally a CertRepMessage in ip/cp/kup.
245 * On receiving a pollRep, which includes a checkAfter value, it return this
246 * value if sleep == 0, else it sleeps as long as indicated and retries.
248 * A transaction timeout is enabled if ctx->total_timeout is > 0.
249 * In this case polling will continue until the timeout is reached and then
250 * polling is done a last time even if this is before the "checkAfter" time.
252 * Returns -1 on receiving pollRep if sleep == 0, setting the checkAfter value.
253 * Returns 1 on success and provides the received PKIMESSAGE in *rep.
254 * In this case the caller is responsible for freeing *rep.
255 * Returns 0 on error (which includes the case that timeout has been reached).
257 static int poll_for_response(OSSL_CMP_CTX *ctx, int sleep, int rid,
258 OSSL_CMP_MSG **rep, int *checkAfter)
260 OSSL_CMP_MSG *preq = NULL;
261 OSSL_CMP_MSG *prep = NULL;
264 "received 'waiting' PKIStatus, starting to poll for response");
267 /* TODO: handle potentially multiple poll requests per message */
268 if ((preq = ossl_cmp_pollReq_new(ctx, rid)) == NULL)
271 if (!send_receive_check(ctx, preq, &prep, OSSL_CMP_PKIBODY_POLLREP))
274 /* handle potential pollRep */
275 if (ossl_cmp_msg_get_bodytype(prep) == OSSL_CMP_PKIBODY_POLLREP) {
276 OSSL_CMP_POLLREPCONTENT *prc = prep->body->value.pollRep;
277 OSSL_CMP_POLLREP *pollRep = NULL;
279 char str[OSSL_CMP_PKISI_BUFLEN];
282 /* TODO: handle potentially multiple elements in pollRep */
283 if (sk_OSSL_CMP_POLLREP_num(prc) > 1) {
284 CMPerr(0, CMP_R_MULTIPLE_RESPONSES_NOT_SUPPORTED);
287 pollRep = ossl_cmp_pollrepcontent_get0_pollrep(prc, rid);
291 if (!ASN1_INTEGER_get_int64(&check_after, pollRep->checkAfter)) {
292 CMPerr(0, CMP_R_BAD_CHECKAFTER_IN_POLLREP);
295 if (check_after < 0 || (uint64_t)check_after
296 > (sleep ? ULONG_MAX / 1000 : INT_MAX)) {
297 CMPerr(0, CMP_R_CHECKAFTER_OUT_OF_RANGE);
298 if (BIO_snprintf(str, OSSL_CMP_PKISI_BUFLEN, "value = %jd",
300 ERR_add_error_data(1, str);
303 if (ctx->total_timeout > 0) { /* timeout is not infinite */
304 const int exp = 5; /* expected max time per msg round trip */
305 int64_t time_left = (int64_t)(ctx->end_time - exp - time(NULL));
307 if (time_left <= 0) {
308 CMPerr(0, CMP_R_TOTAL_TIMEOUT);
311 if (time_left < check_after)
312 check_after = time_left;
313 /* poll one last time just when timeout was reached */
316 if (pollRep->reason == NULL
317 || (len = BIO_snprintf(str, OSSL_CMP_PKISI_BUFLEN,
318 " with reason = '")) < 0) {
321 char *text = sk_ASN1_UTF8STRING2text(pollRep->reason, ", ",
322 sizeof(str) - len - 2);
325 || BIO_snprintf(str + len, sizeof(str) - len,
330 ossl_cmp_log2(INFO, ctx,
331 "received polling response%s; checkAfter = %ld seconds",
334 OSSL_CMP_MSG_free(preq);
336 OSSL_CMP_MSG_free(prep);
339 ossl_sleep((unsigned long)(1000 * check_after));
341 if (checkAfter != NULL)
342 *checkAfter = (int)check_after;
343 return -1; /* exits the loop */
346 ossl_cmp_info(ctx, "received ip/cp/kup after polling");
347 /* any other body type has been rejected by send_receive_check() */
354 OSSL_CMP_MSG_free(preq);
359 OSSL_CMP_MSG_free(preq);
360 OSSL_CMP_MSG_free(prep);
364 /* Send certConf for IR, CR or KUR sequences and check response */
365 int ossl_cmp_exchange_certConf(OSSL_CMP_CTX *ctx, int fail_info,
368 OSSL_CMP_MSG *certConf;
369 OSSL_CMP_MSG *PKIconf = NULL;
372 /* OSSL_CMP_certConf_new() also checks if all necessary options are set */
373 if ((certConf = ossl_cmp_certConf_new(ctx, fail_info, txt)) == NULL)
376 res = send_receive_check(ctx, certConf, &PKIconf, OSSL_CMP_PKIBODY_PKICONF);
379 OSSL_CMP_MSG_free(certConf);
380 OSSL_CMP_MSG_free(PKIconf);
384 /* Send given error and check response */
385 int ossl_cmp_exchange_error(OSSL_CMP_CTX *ctx, int status, int fail_info,
386 const char *txt, int errorCode, const char *details)
388 OSSL_CMP_MSG *error = NULL;
389 OSSL_CMP_PKISI *si = NULL;
390 OSSL_CMP_MSG *PKIconf = NULL;
393 if ((si = OSSL_CMP_STATUSINFO_new(status, fail_info, txt)) == NULL)
395 /* ossl_cmp_error_new() also checks if all necessary options are set */
396 if ((error = ossl_cmp_error_new(ctx, si, errorCode, details, 0)) == NULL)
399 res = send_receive_check(ctx, error, &PKIconf, OSSL_CMP_PKIBODY_PKICONF);
402 OSSL_CMP_MSG_free(error);
403 OSSL_CMP_PKISI_free(si);
404 OSSL_CMP_MSG_free(PKIconf);
409 * Retrieve a copy of the certificate, if any, from the given CertResponse.
410 * Take into account PKIStatusInfo of CertResponse in ctx, report it on error.
411 * Returns NULL if not found or on error.
413 static X509 *get1_cert_status(OSSL_CMP_CTX *ctx, int bodytype,
414 OSSL_CMP_CERTRESPONSE *crep)
416 char buf[OSSL_CMP_PKISI_BUFLEN];
420 if (!ossl_assert(ctx != NULL && crep != NULL))
423 privkey = OSSL_CMP_CTX_get0_newPkey(ctx, 1);
424 switch (ossl_cmp_pkisi_get_status(crep->status)) {
425 case OSSL_CMP_PKISTATUS_waiting:
427 "received \"waiting\" status for cert when actually aiming to extract cert");
428 CMPerr(0, CMP_R_ENCOUNTERED_WAITING);
430 case OSSL_CMP_PKISTATUS_grantedWithMods:
431 ossl_cmp_warn(ctx, "received \"grantedWithMods\" for certificate");
433 case OSSL_CMP_PKISTATUS_accepted:
435 /* get all information in case of a rejection before going to error */
436 case OSSL_CMP_PKISTATUS_rejection:
437 ossl_cmp_err(ctx, "received \"rejection\" status rather than cert");
438 CMPerr(0, CMP_R_REQUEST_REJECTED_BY_SERVER);
440 case OSSL_CMP_PKISTATUS_revocationWarning:
442 "received \"revocationWarning\" - a revocation of the cert is imminent");
444 case OSSL_CMP_PKISTATUS_revocationNotification:
446 "received \"revocationNotification\" - a revocation of the cert has occurred");
448 case OSSL_CMP_PKISTATUS_keyUpdateWarning:
449 if (bodytype != OSSL_CMP_PKIBODY_KUR) {
450 CMPerr(0, CMP_R_ENCOUNTERED_KEYUPDATEWARNING);
455 ossl_cmp_log1(ERROR, ctx,
456 "received unsupported PKIStatus %d for certificate",
458 CMPerr(0, CMP_R_UNKNOWN_PKISTATUS);
461 crt = ossl_cmp_certresponse_get1_cert(crep, ctx, privkey);
462 if (crt == NULL) /* according to PKIStatus, we can expect a cert */
463 CMPerr(0, CMP_R_CERTIFICATE_NOT_FOUND);
468 if (OSSL_CMP_CTX_snprint_PKIStatus(ctx, buf, sizeof(buf)) != NULL)
469 ERR_add_error_data(1, buf);
474 * Callback fn validating that the new certificate can be verified, using
475 * ctx->certConf_cb_arg, which has been initialized using opt_out_trusted, and
476 * ctx->untrusted, which at this point already contains msg->extraCerts.
477 * Returns 0 on acceptance, else a bit field reflecting PKIFailureInfo.
478 * Quoting from RFC 4210 section 5.1. Overall PKI Message:
479 * The extraCerts field can contain certificates that may be useful to
480 * the recipient. For example, this can be used by a CA or RA to
481 * present an end entity with certificates that it needs to verify its
482 * own new certificate (if, for example, the CA that issued the end
483 * entity's certificate is not a root CA for the end entity). Note that
484 * this field does not necessarily contain a certification path; the
485 * recipient may have to sort, select from, or otherwise process the
486 * extra certificates in order to use them.
487 * Note: While often handy, there is no hard requirement by CMP that
488 * an EE must be able to validate the certificates it gets enrolled.
490 int OSSL_CMP_certConf_cb(OSSL_CMP_CTX *ctx, X509 *cert, int fail_info,
493 X509_STORE *out_trusted = OSSL_CMP_CTX_get_certConf_cb_arg(ctx);
494 STACK_OF(X509) *chain = NULL;
495 (void)text; /* make (artificial) use of var to prevent compiler warning */
497 if (fail_info != 0) /* accept any error flagged by CMP core library */
500 ossl_cmp_debug(ctx, "trying to build chain for newly enrolled cert");
501 chain = ossl_cmp_build_cert_chain(ctx->libctx, ctx->propq,
502 out_trusted /* may be NULL */,
503 ctx->untrusted, cert);
504 if (sk_X509_num(chain) > 0)
505 X509_free(sk_X509_shift(chain)); /* remove leaf (EE) cert */
506 if (out_trusted != NULL) {
508 ossl_cmp_err(ctx, "failed building chain for newly enrolled cert");
509 fail_info = 1 << OSSL_CMP_PKIFAILUREINFO_incorrectData;
512 "succeeded building proper chain for newly enrolled cert");
514 } else if (chain == NULL) {
515 ossl_cmp_warn(ctx, "could not build approximate chain for newly enrolled cert, resorting to received extraCerts");
516 chain = OSSL_CMP_CTX_get1_extraCertsIn(ctx);
519 "success building approximate chain for newly enrolled cert");
521 (void)ossl_cmp_ctx_set1_newChain(ctx, chain);
522 sk_X509_pop_free(chain, X509_free);
528 * Perform the generic handling of certificate responses for IR/CR/KUR/P10CR.
529 * Returns -1 on receiving pollRep if sleep == 0, setting the checkAfter value.
530 * Returns 1 on success and provides the received PKIMESSAGE in *resp.
531 * Returns 0 on error (which includes the case that timeout has been reached).
532 * Regardless of success, caller is responsible for freeing *resp (unless NULL).
534 static int cert_response(OSSL_CMP_CTX *ctx, int sleep, int rid,
535 OSSL_CMP_MSG **resp, int *checkAfter,
536 int req_type, int expected_type)
538 EVP_PKEY *rkey = OSSL_CMP_CTX_get0_newPkey(ctx /* may be NULL */, 0);
539 int fail_info = 0; /* no failure */
540 const char *txt = NULL;
541 OSSL_CMP_CERTREPMESSAGE *crepmsg;
542 OSSL_CMP_CERTRESPONSE *crep;
543 OSSL_CMP_certConf_cb_t cb;
548 if (!ossl_assert(ctx != NULL))
552 crepmsg = (*resp)->body->value.ip; /* same for cp and kup */
553 if (sk_OSSL_CMP_CERTRESPONSE_num(crepmsg->response) > 1) {
554 CMPerr(0, CMP_R_MULTIPLE_RESPONSES_NOT_SUPPORTED);
557 /* TODO: handle potentially multiple CertResponses in CertRepMsg */
558 crep = ossl_cmp_certrepmessage_get0_certresponse(crepmsg, rid);
561 if (!save_statusInfo(ctx, crep->status))
564 /* for OSSL_CMP_PKIBODY_P10CR learn CertReqId from response */
565 rid = ossl_cmp_asn1_get_int(crep->certReqId);
567 CMPerr(0, CMP_R_BAD_REQUEST_ID);
572 if (ossl_cmp_pkisi_get_status(crep->status) == OSSL_CMP_PKISTATUS_waiting) {
573 OSSL_CMP_MSG_free(*resp);
575 if ((ret = poll_for_response(ctx, sleep, rid, resp, checkAfter)) != 0) {
576 if (ret == -1) /* at this point implies sleep == 0 */
577 return ret; /* waiting */
578 goto retry; /* got ip/cp/kup, which may still indicate 'waiting' */
580 CMPerr(0, CMP_R_POLLING_FAILED);
585 cert = get1_cert_status(ctx, (*resp)->body->type, crep);
587 ERR_add_error_data(1, "; cannot extract certificate from response");
590 if (!ossl_cmp_ctx_set0_newCert(ctx, cert))
594 * if the CMP server returned certificates in the caPubs field, copy them
595 * to the context so that they can be retrieved if necessary
597 if (crepmsg->caPubs != NULL
598 && !ossl_cmp_ctx_set1_caPubs(ctx, crepmsg->caPubs))
601 subj = X509_NAME_oneline(X509_get_subject_name(cert), NULL, 0);
603 /* X509_check_private_key() also works if rkey is just public key */
604 && !(X509_check_private_key(ctx->newCert, rkey))) {
605 fail_info = 1 << OSSL_CMP_PKIFAILUREINFO_incorrectData;
606 txt = "public key in new certificate does not match our enrollment key";
608 * not calling (void)ossl_cmp_exchange_error(ctx,
609 * OSSL_CMP_PKISTATUS_rejection, fail_info, txt)
610 * not throwing CMP_R_CERTIFICATE_NOT_ACCEPTED with txt
612 * since we better leave this for the certConf_cb to decide
617 * Execute the certification checking callback function,
618 * which can determine whether to accept a newly enrolled certificate.
619 * It may overrule the pre-decision reflected in 'fail_info' and '*txt'.
621 cb = ctx->certConf_cb != NULL ? ctx->certConf_cb : OSSL_CMP_certConf_cb;
622 if ((fail_info = cb(ctx, ctx->newCert, fail_info, &txt)) != 0
624 txt = "CMP client did not accept it";
625 if (fail_info != 0) /* immediately log error before any certConf exchange */
626 ossl_cmp_log1(ERROR, ctx,
627 "rejecting newly enrolled cert with subject: %s", subj);
630 * TODO: better move certConf exchange to do_certreq_seq() such that
631 * also more low-level errors with CertReqMessages get reported to server
633 if (!ctx->disableConfirm
634 && !ossl_cmp_hdr_has_implicitConfirm((*resp)->header)) {
635 if (!ossl_cmp_exchange_certConf(ctx, fail_info, txt))
639 /* not throwing failure earlier as transfer_cb may call ERR_clear_error() */
640 if (fail_info != 0) {
641 CMPerr(0, CMP_R_CERTIFICATE_NOT_ACCEPTED);
642 ERR_add_error_data(2, "rejecting newly enrolled cert with subject: ",
645 ERR_add_error_txt("; ", txt);
652 int OSSL_CMP_try_certreq(OSSL_CMP_CTX *ctx, int req_type,
653 const OSSL_CRMF_MSG *crm, int *checkAfter)
655 OSSL_CMP_MSG *req = NULL;
656 OSSL_CMP_MSG *rep = NULL;
657 int is_p10 = req_type == OSSL_CMP_PKIBODY_P10CR;
658 int rid = is_p10 ? -1 : OSSL_CMP_CERTREQID;
659 int rep_type = is_p10 ? OSSL_CMP_PKIBODY_CP : req_type + 1;
663 CMPerr(0, CMP_R_NULL_ARGUMENT);
667 if (ctx->status != OSSL_CMP_PKISTATUS_waiting) { /* not polling already */
669 if (!ossl_cmp_ctx_set0_newCert(ctx, NULL))
672 if (ctx->total_timeout > 0) /* else ctx->end_time is not used */
673 ctx->end_time = time(NULL) + ctx->total_timeout;
675 req = ossl_cmp_certreq_new(ctx, req_type, crm);
676 if (req == NULL) /* also checks if all necessary options are set */
679 if (!send_receive_check(ctx, req, &rep, rep_type))
683 return ossl_cmp_exchange_error(ctx, OSSL_CMP_PKISTATUS_rejection,
684 0 /* TODO better fail_info value? */,
685 "polling aborted", 0 /* errorCode */,
687 res = poll_for_response(ctx, 0 /* no sleep */, rid, &rep, checkAfter);
688 if (res <= 0) /* waiting or error */
691 res = cert_response(ctx, 0 /* no sleep */, rid, &rep, checkAfter,
695 OSSL_CMP_MSG_free(req);
696 OSSL_CMP_MSG_free(rep);
701 * Do the full sequence CR/IR/KUR/P10CR, CP/IP/KUP/CP,
702 * certConf, PKIconf, and polling if required.
703 * Will sleep as long as indicated by the server (according to checkAfter).
704 * All enrollment options need to be present in the context.
705 * TODO: another function to request two certificates at once should be created.
706 * Returns pointer to received certificate, or NULL if none was received.
708 X509 *OSSL_CMP_exec_certreq(OSSL_CMP_CTX *ctx, int req_type,
709 const OSSL_CRMF_MSG *crm)
712 OSSL_CMP_MSG *req = NULL;
713 OSSL_CMP_MSG *rep = NULL;
714 int is_p10 = req_type == OSSL_CMP_PKIBODY_P10CR;
715 int rid = is_p10 ? -1 : OSSL_CMP_CERTREQID;
716 int rep_type = is_p10 ? OSSL_CMP_PKIBODY_CP : req_type + 1;
720 CMPerr(0, CMP_R_NULL_ARGUMENT);
723 if (is_p10 && crm != NULL) {
724 CMPerr(0, CMP_R_INVALID_ARGS);
729 if (!ossl_cmp_ctx_set0_newCert(ctx, NULL))
732 if (ctx->total_timeout > 0) /* else ctx->end_time is not used */
733 ctx->end_time = time(NULL) + ctx->total_timeout;
735 /* OSSL_CMP_certreq_new() also checks if all necessary options are set */
736 if ((req = ossl_cmp_certreq_new(ctx, req_type, crm)) == NULL)
739 if (!send_receive_check(ctx, req, &rep, rep_type))
742 if (cert_response(ctx, 1 /* sleep */, rid, &rep, NULL, req_type, rep_type)
746 result = ctx->newCert;
748 OSSL_CMP_MSG_free(req);
749 OSSL_CMP_MSG_free(rep);
753 X509 *OSSL_CMP_exec_RR_ses(OSSL_CMP_CTX *ctx)
755 OSSL_CMP_MSG *rr = NULL;
756 OSSL_CMP_MSG *rp = NULL;
757 const int num_RevDetails = 1;
758 const int rsid = OSSL_CMP_REVREQSID;
759 OSSL_CMP_REVREPCONTENT *rrep = NULL;
760 OSSL_CMP_PKISI *si = NULL;
761 char buf[OSSL_CMP_PKISI_BUFLEN];
765 CMPerr(0, CMP_R_INVALID_ARGS);
768 if (ctx->oldCert == NULL) {
769 CMPerr(0, CMP_R_MISSING_REFERENCE_CERT);
774 /* OSSL_CMP_rr_new() also checks if all necessary options are set */
775 if ((rr = ossl_cmp_rr_new(ctx)) == NULL)
778 if (!send_receive_check(ctx, rr, &rp, OSSL_CMP_PKIBODY_RP))
781 rrep = rp->body->value.rp;
782 #ifndef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
783 if (sk_OSSL_CMP_PKISI_num(rrep->status) != num_RevDetails) {
784 CMPerr(0, CMP_R_WRONG_RP_COMPONENT_COUNT);
788 if (sk_OSSL_CMP_PKISI_num(rrep->status) < 1) {
789 CMPerr(0, CMP_R_WRONG_RP_COMPONENT_COUNT);
794 /* evaluate PKIStatus field */
795 si = ossl_cmp_revrepcontent_get_pkisi(rrep, rsid);
796 if (!save_statusInfo(ctx, si))
798 switch (ossl_cmp_pkisi_get_status(si)) {
799 case OSSL_CMP_PKISTATUS_accepted:
800 ossl_cmp_info(ctx, "revocation accepted (PKIStatus=accepted)");
801 result = ctx->oldCert;
803 case OSSL_CMP_PKISTATUS_grantedWithMods:
804 ossl_cmp_info(ctx, "revocation accepted (PKIStatus=grantedWithMods)");
805 result = ctx->oldCert;
807 case OSSL_CMP_PKISTATUS_rejection:
808 CMPerr(0, CMP_R_REQUEST_REJECTED_BY_SERVER);
810 case OSSL_CMP_PKISTATUS_revocationWarning:
811 ossl_cmp_info(ctx, "revocation accepted (PKIStatus=revocationWarning)");
812 result = ctx->oldCert;
814 case OSSL_CMP_PKISTATUS_revocationNotification:
815 /* interpretation as warning or error depends on CA */
817 "revocation accepted (PKIStatus=revocationNotification)");
818 result = ctx->oldCert;
820 case OSSL_CMP_PKISTATUS_waiting:
821 case OSSL_CMP_PKISTATUS_keyUpdateWarning:
822 CMPerr(0, CMP_R_UNEXPECTED_PKISTATUS);
825 CMPerr(0, CMP_R_UNKNOWN_PKISTATUS);
829 /* check any present CertId in optional revCerts field */
830 if (rrep->revCerts != NULL) {
831 OSSL_CRMF_CERTID *cid;
832 OSSL_CRMF_CERTTEMPLATE *tmpl =
833 sk_OSSL_CMP_REVDETAILS_value(rr->body->value.rr, rsid)->certDetails;
834 const X509_NAME *issuer = OSSL_CRMF_CERTTEMPLATE_get0_issuer(tmpl);
835 ASN1_INTEGER *serial = OSSL_CRMF_CERTTEMPLATE_get0_serialNumber(tmpl);
837 if (sk_OSSL_CRMF_CERTID_num(rrep->revCerts) != num_RevDetails) {
838 CMPerr(0, CMP_R_WRONG_RP_COMPONENT_COUNT);
842 if ((cid = ossl_cmp_revrepcontent_get_CertId(rrep, rsid)) == NULL) {
846 if (X509_NAME_cmp(issuer, OSSL_CRMF_CERTID_get0_issuer(cid)) != 0) {
847 #ifndef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
848 CMPerr(0, CMP_R_WRONG_CERTID_IN_RP);
853 if (ASN1_INTEGER_cmp(serial,
854 OSSL_CRMF_CERTID_get0_serialNumber(cid)) != 0) {
855 #ifndef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
856 CMPerr(0, CMP_R_WRONG_SERIAL_IN_RP);
863 /* check number of any optionally present crls */
864 if (rrep->crls != NULL && sk_X509_CRL_num(rrep->crls) != num_RevDetails) {
865 CMPerr(0, CMP_R_WRONG_RP_COMPONENT_COUNT);
872 && OSSL_CMP_CTX_snprint_PKIStatus(ctx, buf, sizeof(buf)) != NULL)
873 ERR_add_error_data(1, buf);
876 OSSL_CMP_MSG_free(rr);
877 OSSL_CMP_MSG_free(rp);
881 STACK_OF(OSSL_CMP_ITAV) *OSSL_CMP_exec_GENM_ses(OSSL_CMP_CTX *ctx)
884 OSSL_CMP_MSG *genp = NULL;
885 STACK_OF(OSSL_CMP_ITAV) *rcvd_itavs = NULL;
888 CMPerr(0, CMP_R_INVALID_ARGS);
892 if ((genm = ossl_cmp_genm_new(ctx)) == NULL)
895 if (!send_receive_check(ctx, genm, &genp, OSSL_CMP_PKIBODY_GENP))
898 /* received stack of itavs not to be freed with the genp */
899 rcvd_itavs = genp->body->value.genp;
900 genp->body->value.genp = NULL;
903 OSSL_CMP_MSG_free(genm);
904 OSSL_CMP_MSG_free(genp);
906 return rcvd_itavs; /* recv_itavs == NULL indicates an error */