xref: /openssl/crypto/cmp/cmp_msg.c (revision 7af110f9)
1 /*
2  * Copyright 2007-2022 The OpenSSL Project Authors. All Rights Reserved.
3  * Copyright Nokia 2007-2019
4  * Copyright Siemens AG 2015-2019
5  *
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
10  */
11 
12 /* CMP functions for PKIMessage construction */
13 
14 #include "cmp_local.h"
15 
16 /* explicit #includes not strictly needed since implied by the above: */
17 #include <openssl/asn1t.h>
18 #include <openssl/cmp.h>
19 #include <openssl/crmf.h>
20 #include <openssl/err.h>
21 #include <openssl/x509.h>
22 
OSSL_CMP_MSG_new(OSSL_LIB_CTX * libctx,const char * propq)23 OSSL_CMP_MSG *OSSL_CMP_MSG_new(OSSL_LIB_CTX *libctx, const char *propq)
24 {
25     OSSL_CMP_MSG *msg = NULL;
26 
27     msg = (OSSL_CMP_MSG *)ASN1_item_new_ex(ASN1_ITEM_rptr(OSSL_CMP_MSG),
28                                            libctx, propq);
29     if (!ossl_cmp_msg_set0_libctx(msg, libctx, propq)) {
30         OSSL_CMP_MSG_free(msg);
31         msg = NULL;
32     }
33     return msg;
34 }
35 
OSSL_CMP_MSG_free(OSSL_CMP_MSG * msg)36 void OSSL_CMP_MSG_free(OSSL_CMP_MSG *msg)
37 {
38     ASN1_item_free((ASN1_VALUE *)msg, ASN1_ITEM_rptr(OSSL_CMP_MSG));
39 }
40 
41 /*
42  * This should only be used if the X509 object was embedded inside another
43  * asn1 object and it needs a libctx to operate.
44  * Use OSSL_CMP_MSG_new() instead if possible.
45  */
ossl_cmp_msg_set0_libctx(OSSL_CMP_MSG * msg,OSSL_LIB_CTX * libctx,const char * propq)46 int ossl_cmp_msg_set0_libctx(OSSL_CMP_MSG *msg, OSSL_LIB_CTX *libctx,
47                              const char *propq)
48 {
49     if (msg != NULL) {
50         msg->libctx = libctx;
51         OPENSSL_free(msg->propq);
52         msg->propq = NULL;
53         if (propq != NULL) {
54             msg->propq = OPENSSL_strdup(propq);
55             if (msg->propq == NULL)
56                 return 0;
57         }
58     }
59     return 1;
60 }
61 
62 
OSSL_CMP_MSG_get0_header(const OSSL_CMP_MSG * msg)63 OSSL_CMP_PKIHEADER *OSSL_CMP_MSG_get0_header(const OSSL_CMP_MSG *msg)
64 {
65     if (msg == NULL) {
66         ERR_raise(ERR_LIB_CMP, CMP_R_NULL_ARGUMENT);
67         return NULL;
68     }
69     return msg->header;
70 }
71 
ossl_cmp_bodytype_to_string(int type)72 const char *ossl_cmp_bodytype_to_string(int type)
73 {
74     static const char *type_names[] = {
75         "IR", "IP", "CR", "CP", "P10CR",
76         "POPDECC", "POPDECR", "KUR", "KUP",
77         "KRR", "KRP", "RR", "RP", "CCR", "CCP",
78         "CKUANN", "CANN", "RANN", "CRLANN", "PKICONF", "NESTED",
79         "GENM", "GENP", "ERROR", "CERTCONF", "POLLREQ", "POLLREP",
80     };
81 
82     if (type < 0 || type > OSSL_CMP_PKIBODY_TYPE_MAX)
83         return "illegal body type";
84     return type_names[type];
85 }
86 
ossl_cmp_msg_set_bodytype(OSSL_CMP_MSG * msg,int type)87 int ossl_cmp_msg_set_bodytype(OSSL_CMP_MSG *msg, int type)
88 {
89     if (!ossl_assert(msg != NULL && msg->body != NULL))
90         return 0;
91 
92     msg->body->type = type;
93     return 1;
94 }
95 
OSSL_CMP_MSG_get_bodytype(const OSSL_CMP_MSG * msg)96 int OSSL_CMP_MSG_get_bodytype(const OSSL_CMP_MSG *msg)
97 {
98     if (!ossl_assert(msg != NULL && msg->body != NULL))
99         return -1;
100 
101     return msg->body->type;
102 }
103 
104 /* Add an extension to the referenced extension stack, which may be NULL */
add1_extension(X509_EXTENSIONS ** pexts,int nid,int crit,void * ex)105 static int add1_extension(X509_EXTENSIONS **pexts, int nid, int crit, void *ex)
106 {
107     X509_EXTENSION *ext;
108     int res;
109 
110     if (!ossl_assert(pexts != NULL)) /* pointer to var must not be NULL */
111         return 0;
112 
113     if ((ext = X509V3_EXT_i2d(nid, crit, ex)) == NULL)
114         return 0;
115 
116     res = X509v3_add_ext(pexts, ext, 0) != NULL;
117     X509_EXTENSION_free(ext);
118     return res;
119 }
120 
121 /* Add extension list to the referenced extension stack, which may be NULL */
add_extensions(STACK_OF (X509_EXTENSION)** target,const STACK_OF (X509_EXTENSION)* exts)122 static int add_extensions(STACK_OF(X509_EXTENSION) **target,
123                           const STACK_OF(X509_EXTENSION) *exts)
124 {
125     int i;
126 
127     if (target == NULL)
128         return 0;
129 
130     for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
131         X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
132         ASN1_OBJECT *obj = X509_EXTENSION_get_object(ext);
133         int idx = X509v3_get_ext_by_OBJ(*target, obj, -1);
134 
135         /* Does extension exist in target? */
136         if (idx != -1) {
137             /* Delete all extensions of same type */
138             do {
139                 X509_EXTENSION_free(sk_X509_EXTENSION_delete(*target, idx));
140                 idx = X509v3_get_ext_by_OBJ(*target, obj, -1);
141             } while (idx != -1);
142         }
143         if (!X509v3_add_ext(target, ext, -1))
144             return 0;
145     }
146     return 1;
147 }
148 
149 /* Add a CRL revocation reason code to extension stack, which may be NULL */
add_crl_reason_extension(X509_EXTENSIONS ** pexts,int reason_code)150 static int add_crl_reason_extension(X509_EXTENSIONS **pexts, int reason_code)
151 {
152     ASN1_ENUMERATED *val = ASN1_ENUMERATED_new();
153     int res = 0;
154 
155     if (val != NULL && ASN1_ENUMERATED_set(val, reason_code))
156         res = add1_extension(pexts, NID_crl_reason, 0 /* non-critical */, val);
157     ASN1_ENUMERATED_free(val);
158     return res;
159 }
160 
ossl_cmp_msg_create(OSSL_CMP_CTX * ctx,int bodytype)161 OSSL_CMP_MSG *ossl_cmp_msg_create(OSSL_CMP_CTX *ctx, int bodytype)
162 {
163     OSSL_CMP_MSG *msg = NULL;
164 
165     if (!ossl_assert(ctx != NULL))
166         return NULL;
167 
168     if ((msg = OSSL_CMP_MSG_new(ctx->libctx, ctx->propq)) == NULL)
169         return NULL;
170     if (!ossl_cmp_hdr_init(ctx, msg->header)
171             || !ossl_cmp_msg_set_bodytype(msg, bodytype))
172         goto err;
173     if (ctx->geninfo_ITAVs != NULL
174             && !ossl_cmp_hdr_generalInfo_push1_items(msg->header,
175                                                      ctx->geninfo_ITAVs))
176         goto err;
177 
178     switch (bodytype) {
179     case OSSL_CMP_PKIBODY_IR:
180     case OSSL_CMP_PKIBODY_CR:
181     case OSSL_CMP_PKIBODY_KUR:
182         if ((msg->body->value.ir = OSSL_CRMF_MSGS_new()) == NULL)
183             goto err;
184         return msg;
185 
186     case OSSL_CMP_PKIBODY_P10CR:
187         if (ctx->p10CSR == NULL) {
188             ERR_raise(ERR_LIB_CMP, CMP_R_MISSING_P10CSR);
189             goto err;
190         }
191         if ((msg->body->value.p10cr = X509_REQ_dup(ctx->p10CSR)) == NULL)
192             goto err;
193         return msg;
194 
195     case OSSL_CMP_PKIBODY_IP:
196     case OSSL_CMP_PKIBODY_CP:
197     case OSSL_CMP_PKIBODY_KUP:
198         if ((msg->body->value.ip = OSSL_CMP_CERTREPMESSAGE_new()) == NULL)
199             goto err;
200         return msg;
201 
202     case OSSL_CMP_PKIBODY_RR:
203         if ((msg->body->value.rr = sk_OSSL_CMP_REVDETAILS_new_null()) == NULL)
204             goto err;
205         return msg;
206     case OSSL_CMP_PKIBODY_RP:
207         if ((msg->body->value.rp = OSSL_CMP_REVREPCONTENT_new()) == NULL)
208             goto err;
209         return msg;
210 
211     case OSSL_CMP_PKIBODY_CERTCONF:
212         if ((msg->body->value.certConf =
213              sk_OSSL_CMP_CERTSTATUS_new_null()) == NULL)
214             goto err;
215         return msg;
216     case OSSL_CMP_PKIBODY_PKICONF:
217         if ((msg->body->value.pkiconf = ASN1_TYPE_new()) == NULL)
218             goto err;
219         ASN1_TYPE_set(msg->body->value.pkiconf, V_ASN1_NULL, NULL);
220         return msg;
221 
222     case OSSL_CMP_PKIBODY_POLLREQ:
223         if ((msg->body->value.pollReq = sk_OSSL_CMP_POLLREQ_new_null()) == NULL)
224             goto err;
225         return msg;
226     case OSSL_CMP_PKIBODY_POLLREP:
227         if ((msg->body->value.pollRep = sk_OSSL_CMP_POLLREP_new_null()) == NULL)
228             goto err;
229         return msg;
230 
231     case OSSL_CMP_PKIBODY_GENM:
232     case OSSL_CMP_PKIBODY_GENP:
233         if ((msg->body->value.genm = sk_OSSL_CMP_ITAV_new_null()) == NULL)
234             goto err;
235         return msg;
236 
237     case OSSL_CMP_PKIBODY_ERROR:
238         if ((msg->body->value.error = OSSL_CMP_ERRORMSGCONTENT_new()) == NULL)
239             goto err;
240         return msg;
241 
242     default:
243         ERR_raise(ERR_LIB_CMP, CMP_R_UNEXPECTED_PKIBODY);
244         goto err;
245     }
246 
247  err:
248     OSSL_CMP_MSG_free(msg);
249     return NULL;
250 }
251 
252 #define HAS_SAN(ctx) \
253     (sk_GENERAL_NAME_num((ctx)->subjectAltNames) > 0 \
254          || OSSL_CMP_CTX_reqExtensions_have_SAN(ctx) == 1)
255 
determine_subj(OSSL_CMP_CTX * ctx,int for_KUR,const X509_NAME * ref_subj)256 static const X509_NAME *determine_subj(OSSL_CMP_CTX *ctx, int for_KUR,
257                                        const X509_NAME *ref_subj)
258 {
259     if (ctx->subjectName != NULL)
260         return IS_NULL_DN(ctx->subjectName) ? NULL : ctx->subjectName;
261     if (ctx->p10CSR != NULL) /* first default is from any given CSR */
262         return X509_REQ_get_subject_name(ctx->p10CSR);
263     if (for_KUR || !HAS_SAN(ctx))
264         /*
265          * For KUR, copy subject from any reference cert as fallback.
266          * For IR or CR, do the same only if there is no subjectAltName.
267          */
268         return ref_subj;
269     return NULL;
270 }
271 
OSSL_CMP_CTX_setup_CRM(OSSL_CMP_CTX * ctx,int for_KUR,int rid)272 OSSL_CRMF_MSG *OSSL_CMP_CTX_setup_CRM(OSSL_CMP_CTX *ctx, int for_KUR, int rid)
273 {
274     OSSL_CRMF_MSG *crm = NULL;
275     X509 *refcert = ctx->oldCert != NULL ? ctx->oldCert : ctx->cert;
276     /* refcert defaults to current client cert */
277     EVP_PKEY *rkey = OSSL_CMP_CTX_get0_newPkey(ctx, 0);
278     STACK_OF(GENERAL_NAME) *default_sans = NULL;
279     const X509_NAME *ref_subj =
280         refcert != NULL ? X509_get_subject_name(refcert) : NULL;
281     const X509_NAME *subject = determine_subj(ctx, for_KUR, ref_subj);
282     const X509_NAME *issuer = ctx->issuer != NULL || refcert == NULL
283         ? (IS_NULL_DN(ctx->issuer) ? NULL : ctx->issuer)
284         : X509_get_issuer_name(refcert);
285     int crit = ctx->setSubjectAltNameCritical || subject == NULL;
286     /* RFC5280: subjectAltName MUST be critical if subject is null */
287     X509_EXTENSIONS *exts = NULL;
288 
289     if (rkey == NULL && ctx->p10CSR != NULL)
290         rkey = X509_REQ_get0_pubkey(ctx->p10CSR);
291     if (rkey == NULL && refcert != NULL)
292         rkey = X509_get0_pubkey(refcert);
293     if (rkey == NULL)
294         rkey = ctx->pkey; /* default is independent of ctx->oldCert */
295     if (rkey == NULL) {
296 #ifndef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
297         ERR_raise(ERR_LIB_CMP, CMP_R_NULL_ARGUMENT);
298         return NULL;
299 #endif
300     }
301     if (for_KUR && refcert == NULL && ctx->p10CSR == NULL) {
302         ERR_raise(ERR_LIB_CMP, CMP_R_MISSING_REFERENCE_CERT);
303         return NULL;
304     }
305     if ((crm = OSSL_CRMF_MSG_new()) == NULL)
306         return NULL;
307     if (!OSSL_CRMF_MSG_set_certReqId(crm, rid)
308             /*
309              * fill certTemplate, corresponding to CertificationRequestInfo
310              * of PKCS#10. The rkey param cannot be NULL so far -
311              * it could be NULL if centralized key creation was supported
312              */
313             || !OSSL_CRMF_CERTTEMPLATE_fill(OSSL_CRMF_MSG_get0_tmpl(crm), rkey,
314                                             subject, issuer, NULL /* serial */))
315         goto err;
316     if (ctx->days != 0) {
317         time_t now = time(NULL);
318         ASN1_TIME *notBefore = ASN1_TIME_adj(NULL, now, 0, 0);
319         ASN1_TIME *notAfter = ASN1_TIME_adj(NULL, now, ctx->days, 0);
320 
321         if (notBefore == NULL
322                 || notAfter == NULL
323                 || !OSSL_CRMF_MSG_set0_validity(crm, notBefore, notAfter)) {
324             ASN1_TIME_free(notBefore);
325             ASN1_TIME_free(notAfter);
326             goto err;
327         }
328     }
329 
330     /* extensions */
331     if (ctx->p10CSR != NULL
332             && (exts = X509_REQ_get_extensions(ctx->p10CSR)) == NULL)
333         goto err;
334     if (!ctx->SubjectAltName_nodefault && !HAS_SAN(ctx) && refcert != NULL
335             && (default_sans = X509V3_get_d2i(X509_get0_extensions(refcert),
336                                               NID_subject_alt_name, NULL, NULL))
337             != NULL
338             && !add1_extension(&exts, NID_subject_alt_name, crit, default_sans))
339         goto err;
340     if (ctx->reqExtensions != NULL /* augment/override existing ones */
341             && !add_extensions(&exts, ctx->reqExtensions))
342         goto err;
343     if (sk_GENERAL_NAME_num(ctx->subjectAltNames) > 0
344             && !add1_extension(&exts, NID_subject_alt_name,
345                                crit, ctx->subjectAltNames))
346         goto err;
347     if (ctx->policies != NULL
348             && !add1_extension(&exts, NID_certificate_policies,
349                                ctx->setPoliciesCritical, ctx->policies))
350         goto err;
351     if (!OSSL_CRMF_MSG_set0_extensions(crm, exts))
352         goto err;
353     exts = NULL;
354     /* end fill certTemplate, now set any controls */
355 
356     /* for KUR, set OldCertId according to D.6 */
357     if (for_KUR && refcert != NULL) {
358         OSSL_CRMF_CERTID *cid =
359             OSSL_CRMF_CERTID_gen(X509_get_issuer_name(refcert),
360                                  X509_get0_serialNumber(refcert));
361         int ret;
362 
363         if (cid == NULL)
364             goto err;
365         ret = OSSL_CRMF_MSG_set1_regCtrl_oldCertID(crm, cid);
366         OSSL_CRMF_CERTID_free(cid);
367         if (ret == 0)
368             goto err;
369     }
370 
371     goto end;
372 
373  err:
374     OSSL_CRMF_MSG_free(crm);
375     crm = NULL;
376 
377  end:
378     sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
379     sk_GENERAL_NAME_pop_free(default_sans, GENERAL_NAME_free);
380     return crm;
381 }
382 
ossl_cmp_certreq_new(OSSL_CMP_CTX * ctx,int type,const OSSL_CRMF_MSG * crm)383 OSSL_CMP_MSG *ossl_cmp_certreq_new(OSSL_CMP_CTX *ctx, int type,
384                                    const OSSL_CRMF_MSG *crm)
385 {
386     OSSL_CMP_MSG *msg;
387     OSSL_CRMF_MSG *local_crm = NULL;
388 
389     if (!ossl_assert(ctx != NULL))
390         return NULL;
391 
392     if (type != OSSL_CMP_PKIBODY_IR && type != OSSL_CMP_PKIBODY_CR
393             && type != OSSL_CMP_PKIBODY_KUR && type != OSSL_CMP_PKIBODY_P10CR) {
394         ERR_raise(ERR_LIB_CMP, CMP_R_INVALID_ARGS);
395         return NULL;
396     }
397     if (type == OSSL_CMP_PKIBODY_P10CR && crm != NULL) {
398         ERR_raise(ERR_LIB_CMP, CMP_R_INVALID_ARGS);
399         return NULL;
400     }
401 
402     if ((msg = ossl_cmp_msg_create(ctx, type)) == NULL)
403         goto err;
404 
405     /* header */
406     if (ctx->implicitConfirm && !ossl_cmp_hdr_set_implicitConfirm(msg->header))
407         goto err;
408 
409     /* body */
410     /* For P10CR the content has already been set in OSSL_CMP_MSG_create */
411     if (type != OSSL_CMP_PKIBODY_P10CR) {
412         EVP_PKEY *privkey = OSSL_CMP_CTX_get0_newPkey(ctx, 1);
413 
414         /*
415          * privkey is NULL in case ctx->newPkey does not include a private key.
416          * We then may try to use ctx->pkey as fallback/default, but only
417          * if ctx-> newPkey does not include a (non-matching) public key:
418          */
419         if (privkey == NULL && OSSL_CMP_CTX_get0_newPkey(ctx, 0) == NULL)
420             privkey = ctx->pkey; /* default is independent of ctx->oldCert */
421         if (ctx->popoMethod == OSSL_CRMF_POPO_SIGNATURE && privkey == NULL) {
422             ERR_raise(ERR_LIB_CMP, CMP_R_MISSING_PRIVATE_KEY);
423             goto err;
424         }
425         if (crm == NULL) {
426             local_crm = OSSL_CMP_CTX_setup_CRM(ctx,
427                                                type == OSSL_CMP_PKIBODY_KUR,
428                                                OSSL_CMP_CERTREQID);
429             if (local_crm == NULL
430                 || !OSSL_CRMF_MSG_create_popo(ctx->popoMethod, local_crm,
431                                               privkey, ctx->digest,
432                                               ctx->libctx, ctx->propq))
433                 goto err;
434         } else {
435             if ((local_crm = OSSL_CRMF_MSG_dup(crm)) == NULL)
436                 goto err;
437         }
438 
439         /* value.ir is same for cr and kur */
440         if (!sk_OSSL_CRMF_MSG_push(msg->body->value.ir, local_crm))
441             goto err;
442         local_crm = NULL;
443     }
444 
445     if (!ossl_cmp_msg_protect(ctx, msg))
446         goto err;
447 
448     return msg;
449 
450  err:
451     ERR_raise(ERR_LIB_CMP, CMP_R_ERROR_CREATING_CERTREQ);
452     OSSL_CRMF_MSG_free(local_crm);
453     OSSL_CMP_MSG_free(msg);
454     return NULL;
455 }
456 
ossl_cmp_certrep_new(OSSL_CMP_CTX * ctx,int bodytype,int certReqId,const OSSL_CMP_PKISI * si,X509 * cert,const X509 * encryption_recip,STACK_OF (X509)* chain,STACK_OF (X509)* caPubs,int unprotectedErrors)457 OSSL_CMP_MSG *ossl_cmp_certrep_new(OSSL_CMP_CTX *ctx, int bodytype,
458                                    int certReqId, const OSSL_CMP_PKISI *si,
459                                    X509 *cert, const X509 *encryption_recip,
460                                    STACK_OF(X509) *chain, STACK_OF(X509) *caPubs,
461                                    int unprotectedErrors)
462 {
463     OSSL_CMP_MSG *msg = NULL;
464     OSSL_CMP_CERTREPMESSAGE *repMsg = NULL;
465     OSSL_CMP_CERTRESPONSE *resp = NULL;
466     int status = -1;
467 
468     if (!ossl_assert(ctx != NULL && si != NULL))
469         return NULL;
470 
471     if ((msg = ossl_cmp_msg_create(ctx, bodytype)) == NULL)
472         goto err;
473     repMsg = msg->body->value.ip; /* value.ip is same for cp and kup */
474 
475     /* header */
476     if (ctx->implicitConfirm && !ossl_cmp_hdr_set_implicitConfirm(msg->header))
477         goto err;
478 
479     /* body */
480     if ((resp = OSSL_CMP_CERTRESPONSE_new()) == NULL)
481         goto err;
482     OSSL_CMP_PKISI_free(resp->status);
483     if ((resp->status = OSSL_CMP_PKISI_dup(si)) == NULL
484             || !ASN1_INTEGER_set(resp->certReqId, certReqId))
485         goto err;
486 
487     status = ossl_cmp_pkisi_get_status(resp->status);
488     if (status != OSSL_CMP_PKISTATUS_rejection
489             && status != OSSL_CMP_PKISTATUS_waiting && cert != NULL) {
490         if (encryption_recip != NULL) {
491             ERR_raise(ERR_LIB_CMP, ERR_R_UNSUPPORTED);
492             goto err;
493         }
494 
495         if ((resp->certifiedKeyPair = OSSL_CMP_CERTIFIEDKEYPAIR_new())
496             == NULL)
497             goto err;
498         resp->certifiedKeyPair->certOrEncCert->type =
499             OSSL_CMP_CERTORENCCERT_CERTIFICATE;
500         if (!X509_up_ref(cert))
501             goto err;
502         resp->certifiedKeyPair->certOrEncCert->value.certificate = cert;
503     }
504 
505     if (!sk_OSSL_CMP_CERTRESPONSE_push(repMsg->response, resp))
506         goto err;
507     resp = NULL;
508 
509     if (bodytype == OSSL_CMP_PKIBODY_IP && caPubs != NULL
510             && (repMsg->caPubs = X509_chain_up_ref(caPubs)) == NULL)
511         goto err;
512     if (sk_X509_num(chain) > 0
513         && !ossl_x509_add_certs_new(&msg->extraCerts, chain,
514                                     X509_ADD_FLAG_UP_REF | X509_ADD_FLAG_NO_DUP))
515         goto err;
516 
517     if (!unprotectedErrors
518             || ossl_cmp_pkisi_get_status(si) != OSSL_CMP_PKISTATUS_rejection)
519         if (!ossl_cmp_msg_protect(ctx, msg))
520             goto err;
521 
522     return msg;
523 
524  err:
525     ERR_raise(ERR_LIB_CMP, CMP_R_ERROR_CREATING_CERTREP);
526     OSSL_CMP_CERTRESPONSE_free(resp);
527     OSSL_CMP_MSG_free(msg);
528     return NULL;
529 }
530 
ossl_cmp_rr_new(OSSL_CMP_CTX * ctx)531 OSSL_CMP_MSG *ossl_cmp_rr_new(OSSL_CMP_CTX *ctx)
532 {
533     OSSL_CMP_MSG *msg = NULL;
534     OSSL_CMP_REVDETAILS *rd;
535     int ret;
536 
537     if (!ossl_assert(ctx != NULL && (ctx->oldCert != NULL
538                                      || ctx->p10CSR != NULL)))
539         return NULL;
540 
541     if ((rd = OSSL_CMP_REVDETAILS_new()) == NULL)
542         goto err;
543 
544     /* Fill the template from the contents of the certificate to be revoked */
545     ret = ctx->oldCert != NULL
546     ? OSSL_CRMF_CERTTEMPLATE_fill(rd->certDetails,
547                                   NULL /* pubkey would be redundant */,
548                                   NULL /* subject would be redundant */,
549                                   X509_get_issuer_name(ctx->oldCert),
550                                   X509_get0_serialNumber(ctx->oldCert))
551     : OSSL_CRMF_CERTTEMPLATE_fill(rd->certDetails,
552                                   X509_REQ_get0_pubkey(ctx->p10CSR),
553                                   X509_REQ_get_subject_name(ctx->p10CSR),
554                                   NULL, NULL);
555     if (!ret)
556         goto err;
557 
558     /* revocation reason code is optional */
559     if (ctx->revocationReason != CRL_REASON_NONE
560             && !add_crl_reason_extension(&rd->crlEntryDetails,
561                                          ctx->revocationReason))
562         goto err;
563 
564     if ((msg = ossl_cmp_msg_create(ctx, OSSL_CMP_PKIBODY_RR)) == NULL)
565         goto err;
566 
567     if (!sk_OSSL_CMP_REVDETAILS_push(msg->body->value.rr, rd))
568         goto err;
569     rd = NULL;
570     /* Revocation Passphrase according to section 5.3.19.9 could be set here */
571 
572     if (!ossl_cmp_msg_protect(ctx, msg))
573         goto err;
574 
575     return msg;
576 
577  err:
578     ERR_raise(ERR_LIB_CMP, CMP_R_ERROR_CREATING_RR);
579     OSSL_CMP_MSG_free(msg);
580     OSSL_CMP_REVDETAILS_free(rd);
581     return NULL;
582 }
583 
ossl_cmp_rp_new(OSSL_CMP_CTX * ctx,const OSSL_CMP_PKISI * si,const OSSL_CRMF_CERTID * cid,int unprotectedErrors)584 OSSL_CMP_MSG *ossl_cmp_rp_new(OSSL_CMP_CTX *ctx, const OSSL_CMP_PKISI *si,
585                               const OSSL_CRMF_CERTID *cid, int unprotectedErrors)
586 {
587     OSSL_CMP_REVREPCONTENT *rep = NULL;
588     OSSL_CMP_PKISI *si1 = NULL;
589     OSSL_CRMF_CERTID *cid_copy = NULL;
590     OSSL_CMP_MSG *msg = NULL;
591 
592     if (!ossl_assert(ctx != NULL && si != NULL))
593         return NULL;
594 
595     if ((msg = ossl_cmp_msg_create(ctx, OSSL_CMP_PKIBODY_RP)) == NULL)
596         goto err;
597     rep = msg->body->value.rp;
598 
599     if ((si1 = OSSL_CMP_PKISI_dup(si)) == NULL)
600         goto err;
601 
602     if (!sk_OSSL_CMP_PKISI_push(rep->status, si1)) {
603         OSSL_CMP_PKISI_free(si1);
604         goto err;
605     }
606 
607     if ((rep->revCerts = sk_OSSL_CRMF_CERTID_new_null()) == NULL)
608         goto err;
609     if (cid != NULL) {
610         if ((cid_copy = OSSL_CRMF_CERTID_dup(cid)) == NULL)
611             goto err;
612         if (!sk_OSSL_CRMF_CERTID_push(rep->revCerts, cid_copy)) {
613             OSSL_CRMF_CERTID_free(cid_copy);
614             goto err;
615         }
616     }
617 
618     if (!unprotectedErrors
619             || ossl_cmp_pkisi_get_status(si) != OSSL_CMP_PKISTATUS_rejection)
620         if (!ossl_cmp_msg_protect(ctx, msg))
621             goto err;
622 
623     return msg;
624 
625  err:
626     ERR_raise(ERR_LIB_CMP, CMP_R_ERROR_CREATING_RP);
627     OSSL_CMP_MSG_free(msg);
628     return NULL;
629 }
630 
ossl_cmp_pkiconf_new(OSSL_CMP_CTX * ctx)631 OSSL_CMP_MSG *ossl_cmp_pkiconf_new(OSSL_CMP_CTX *ctx)
632 {
633     OSSL_CMP_MSG *msg;
634 
635     if (!ossl_assert(ctx != NULL))
636         return NULL;
637 
638     if ((msg = ossl_cmp_msg_create(ctx, OSSL_CMP_PKIBODY_PKICONF)) == NULL)
639         goto err;
640     if (ossl_cmp_msg_protect(ctx, msg))
641         return msg;
642 
643  err:
644     ERR_raise(ERR_LIB_CMP, CMP_R_ERROR_CREATING_PKICONF);
645     OSSL_CMP_MSG_free(msg);
646     return NULL;
647 }
648 
ossl_cmp_msg_gen_push0_ITAV(OSSL_CMP_MSG * msg,OSSL_CMP_ITAV * itav)649 int ossl_cmp_msg_gen_push0_ITAV(OSSL_CMP_MSG *msg, OSSL_CMP_ITAV *itav)
650 {
651     int bodytype;
652 
653     if (!ossl_assert(msg != NULL && itav != NULL))
654         return 0;
655 
656     bodytype = OSSL_CMP_MSG_get_bodytype(msg);
657     if (bodytype != OSSL_CMP_PKIBODY_GENM
658             && bodytype != OSSL_CMP_PKIBODY_GENP) {
659         ERR_raise(ERR_LIB_CMP, CMP_R_INVALID_ARGS);
660         return 0;
661     }
662 
663     /* value.genp has the same structure, so this works for genp as well */
664     return OSSL_CMP_ITAV_push0_stack_item(&msg->body->value.genm, itav);
665 }
666 
ossl_cmp_msg_gen_push1_ITAVs(OSSL_CMP_MSG * msg,const STACK_OF (OSSL_CMP_ITAV)* itavs)667 int ossl_cmp_msg_gen_push1_ITAVs(OSSL_CMP_MSG *msg,
668                                  const STACK_OF(OSSL_CMP_ITAV) *itavs)
669 {
670     int i;
671     OSSL_CMP_ITAV *itav = NULL;
672 
673     if (!ossl_assert(msg != NULL))
674         return 0;
675 
676     for (i = 0; i < sk_OSSL_CMP_ITAV_num(itavs); i++) {
677         itav = OSSL_CMP_ITAV_dup(sk_OSSL_CMP_ITAV_value(itavs, i));
678         if (itav == NULL
679                 || !ossl_cmp_msg_gen_push0_ITAV(msg, itav)) {
680             OSSL_CMP_ITAV_free(itav);
681             return 0;
682         }
683     }
684     return 1;
685 }
686 
687 /*
688  * Creates a new General Message/Response with an empty itav stack
689  * returns a pointer to the PKIMessage on success, NULL on error
690  */
gen_new(OSSL_CMP_CTX * ctx,const STACK_OF (OSSL_CMP_ITAV)* itavs,int body_type,int err_code)691 static OSSL_CMP_MSG *gen_new(OSSL_CMP_CTX *ctx,
692                              const STACK_OF(OSSL_CMP_ITAV) *itavs,
693                              int body_type, int err_code)
694 {
695     OSSL_CMP_MSG *msg = NULL;
696 
697     if (!ossl_assert(ctx != NULL))
698         return NULL;
699 
700     if ((msg = ossl_cmp_msg_create(ctx, body_type)) == NULL)
701         return NULL;
702 
703     if (ctx->genm_ITAVs != NULL
704             && !ossl_cmp_msg_gen_push1_ITAVs(msg, itavs))
705         goto err;
706 
707     if (!ossl_cmp_msg_protect(ctx, msg))
708         goto err;
709 
710     return msg;
711 
712  err:
713     ERR_raise(ERR_LIB_CMP, err_code);
714     OSSL_CMP_MSG_free(msg);
715     return NULL;
716 }
717 
ossl_cmp_genm_new(OSSL_CMP_CTX * ctx)718 OSSL_CMP_MSG *ossl_cmp_genm_new(OSSL_CMP_CTX *ctx)
719 {
720     return gen_new(ctx, ctx->genm_ITAVs,
721                    OSSL_CMP_PKIBODY_GENM, CMP_R_ERROR_CREATING_GENM);
722 }
723 
ossl_cmp_genp_new(OSSL_CMP_CTX * ctx,const STACK_OF (OSSL_CMP_ITAV)* itavs)724 OSSL_CMP_MSG *ossl_cmp_genp_new(OSSL_CMP_CTX *ctx,
725                                 const STACK_OF(OSSL_CMP_ITAV) *itavs)
726 {
727     return gen_new(ctx, itavs,
728                    OSSL_CMP_PKIBODY_GENP, CMP_R_ERROR_CREATING_GENP);
729 }
730 
ossl_cmp_error_new(OSSL_CMP_CTX * ctx,const OSSL_CMP_PKISI * si,int64_t errorCode,const char * details,int unprotected)731 OSSL_CMP_MSG *ossl_cmp_error_new(OSSL_CMP_CTX *ctx, const OSSL_CMP_PKISI *si,
732                                  int64_t errorCode, const char *details,
733                                  int unprotected)
734 {
735     OSSL_CMP_MSG *msg = NULL;
736     const char *lib = NULL, *reason = NULL;
737     OSSL_CMP_PKIFREETEXT *ft;
738 
739     if (!ossl_assert(ctx != NULL && si != NULL))
740         return NULL;
741 
742     if ((msg = ossl_cmp_msg_create(ctx, OSSL_CMP_PKIBODY_ERROR)) == NULL)
743         goto err;
744 
745     OSSL_CMP_PKISI_free(msg->body->value.error->pKIStatusInfo);
746     if ((msg->body->value.error->pKIStatusInfo = OSSL_CMP_PKISI_dup(si))
747         == NULL)
748         goto err;
749     if ((msg->body->value.error->errorCode = ASN1_INTEGER_new()) == NULL)
750         goto err;
751     if (!ASN1_INTEGER_set_int64(msg->body->value.error->errorCode, errorCode))
752         goto err;
753     if (errorCode > 0
754             && (uint64_t)errorCode < ((uint64_t)ERR_SYSTEM_FLAG << 1)) {
755         lib = ERR_lib_error_string((unsigned long)errorCode);
756         reason = ERR_reason_error_string((unsigned long)errorCode);
757     }
758     if (lib != NULL || reason != NULL || details != NULL) {
759         if ((ft = sk_ASN1_UTF8STRING_new_null()) == NULL)
760             goto err;
761         msg->body->value.error->errorDetails = ft;
762         if (lib != NULL && *lib != '\0'
763                 && !ossl_cmp_sk_ASN1_UTF8STRING_push_str(ft, lib, -1))
764             goto err;
765         if (reason != NULL && *reason != '\0'
766                 && !ossl_cmp_sk_ASN1_UTF8STRING_push_str(ft, reason, -1))
767             goto err;
768         if (details != NULL
769                 && !ossl_cmp_sk_ASN1_UTF8STRING_push_str(ft, details, -1))
770             goto err;
771     }
772 
773     if (!unprotected && !ossl_cmp_msg_protect(ctx, msg))
774         goto err;
775     return msg;
776 
777  err:
778     ERR_raise(ERR_LIB_CMP, CMP_R_ERROR_CREATING_ERROR);
779     OSSL_CMP_MSG_free(msg);
780     return NULL;
781 }
782 
783 /*
784  * Set the certHash field of a OSSL_CMP_CERTSTATUS structure.
785  * This is used in the certConf message, for example,
786  * to confirm that the certificate was received successfully.
787  */
ossl_cmp_certstatus_set0_certHash(OSSL_CMP_CERTSTATUS * certStatus,ASN1_OCTET_STRING * hash)788 int ossl_cmp_certstatus_set0_certHash(OSSL_CMP_CERTSTATUS *certStatus,
789                                       ASN1_OCTET_STRING *hash)
790 {
791     if (!ossl_assert(certStatus != NULL))
792         return 0;
793     ASN1_OCTET_STRING_free(certStatus->certHash);
794     certStatus->certHash = hash;
795     return 1;
796 }
797 
ossl_cmp_certConf_new(OSSL_CMP_CTX * ctx,int fail_info,const char * text)798 OSSL_CMP_MSG *ossl_cmp_certConf_new(OSSL_CMP_CTX *ctx, int fail_info,
799                                     const char *text)
800 {
801     OSSL_CMP_MSG *msg = NULL;
802     OSSL_CMP_CERTSTATUS *certStatus = NULL;
803     EVP_MD *md;
804     int is_fallback;
805     ASN1_OCTET_STRING *certHash = NULL;
806     OSSL_CMP_PKISI *sinfo;
807 
808     if (!ossl_assert(ctx != NULL && ctx->newCert != NULL))
809         return NULL;
810 
811     if ((unsigned)fail_info > OSSL_CMP_PKIFAILUREINFO_MAX_BIT_PATTERN) {
812         ERR_raise(ERR_LIB_CMP, CMP_R_FAIL_INFO_OUT_OF_RANGE);
813         return NULL;
814     }
815 
816     if ((msg = ossl_cmp_msg_create(ctx, OSSL_CMP_PKIBODY_CERTCONF)) == NULL)
817         goto err;
818 
819     if ((certStatus = OSSL_CMP_CERTSTATUS_new()) == NULL)
820         goto err;
821     /* consume certStatus into msg right away so it gets deallocated with msg */
822     if (!sk_OSSL_CMP_CERTSTATUS_push(msg->body->value.certConf, certStatus))
823         goto err;
824     /* set the ID of the certReq */
825     if (!ASN1_INTEGER_set(certStatus->certReqId, OSSL_CMP_CERTREQID))
826         goto err;
827     certStatus->hashAlg = NULL;
828     /*
829      * The hash of the certificate, using the same hash algorithm
830      * as is used to create and verify the certificate signature.
831      * If not available, a fallback hash algorithm is used.
832      */
833     if ((certHash = X509_digest_sig(ctx->newCert, &md, &is_fallback)) == NULL)
834         goto err;
835     if (is_fallback) {
836         if (!ossl_cmp_hdr_set_pvno(msg->header, OSSL_CMP_PVNO_3))
837             goto err;
838         if ((certStatus->hashAlg = X509_ALGOR_new()) == NULL)
839             goto err;
840         X509_ALGOR_set_md(certStatus->hashAlg, md);
841     }
842     EVP_MD_free(md);
843 
844     if (!ossl_cmp_certstatus_set0_certHash(certStatus, certHash))
845         goto err;
846     certHash = NULL;
847     /*
848      * For any particular CertStatus, omission of the statusInfo field
849      * indicates ACCEPTANCE of the specified certificate.  Alternatively,
850      * explicit status details (with respect to acceptance or rejection) MAY
851      * be provided in the statusInfo field, perhaps for auditing purposes at
852      * the CA/RA.
853      */
854     sinfo = fail_info != 0 ?
855         OSSL_CMP_STATUSINFO_new(OSSL_CMP_PKISTATUS_rejection, fail_info, text) :
856         OSSL_CMP_STATUSINFO_new(OSSL_CMP_PKISTATUS_accepted, 0, text);
857     if (sinfo == NULL)
858         goto err;
859     certStatus->statusInfo = sinfo;
860 
861     if (!ossl_cmp_msg_protect(ctx, msg))
862         goto err;
863 
864     return msg;
865 
866  err:
867     ERR_raise(ERR_LIB_CMP, CMP_R_ERROR_CREATING_CERTCONF);
868     OSSL_CMP_MSG_free(msg);
869     ASN1_OCTET_STRING_free(certHash);
870     return NULL;
871 }
872 
ossl_cmp_pollReq_new(OSSL_CMP_CTX * ctx,int crid)873 OSSL_CMP_MSG *ossl_cmp_pollReq_new(OSSL_CMP_CTX *ctx, int crid)
874 {
875     OSSL_CMP_MSG *msg = NULL;
876     OSSL_CMP_POLLREQ *preq = NULL;
877 
878     if (!ossl_assert(ctx != NULL))
879         return NULL;
880 
881     if ((msg = ossl_cmp_msg_create(ctx, OSSL_CMP_PKIBODY_POLLREQ)) == NULL)
882         goto err;
883 
884     if ((preq = OSSL_CMP_POLLREQ_new()) == NULL
885             || !ASN1_INTEGER_set(preq->certReqId, crid)
886             || !sk_OSSL_CMP_POLLREQ_push(msg->body->value.pollReq, preq))
887         goto err;
888 
889     preq = NULL;
890     if (!ossl_cmp_msg_protect(ctx, msg))
891         goto err;
892 
893     return msg;
894 
895  err:
896     ERR_raise(ERR_LIB_CMP, CMP_R_ERROR_CREATING_POLLREQ);
897     OSSL_CMP_POLLREQ_free(preq);
898     OSSL_CMP_MSG_free(msg);
899     return NULL;
900 }
901 
ossl_cmp_pollRep_new(OSSL_CMP_CTX * ctx,int crid,int64_t poll_after)902 OSSL_CMP_MSG *ossl_cmp_pollRep_new(OSSL_CMP_CTX *ctx, int crid,
903                                    int64_t poll_after)
904 {
905     OSSL_CMP_MSG *msg;
906     OSSL_CMP_POLLREP *prep;
907 
908     if (!ossl_assert(ctx != NULL))
909         return NULL;
910 
911     if ((msg = ossl_cmp_msg_create(ctx, OSSL_CMP_PKIBODY_POLLREP)) == NULL)
912         goto err;
913     if ((prep = OSSL_CMP_POLLREP_new()) == NULL)
914         goto err;
915     if (!sk_OSSL_CMP_POLLREP_push(msg->body->value.pollRep, prep))
916         goto err;
917     if (!ASN1_INTEGER_set(prep->certReqId, crid))
918         goto err;
919     if (!ASN1_INTEGER_set_int64(prep->checkAfter, poll_after))
920         goto err;
921 
922     if (!ossl_cmp_msg_protect(ctx, msg))
923         goto err;
924     return msg;
925 
926  err:
927     ERR_raise(ERR_LIB_CMP, CMP_R_ERROR_CREATING_POLLREP);
928     OSSL_CMP_MSG_free(msg);
929     return NULL;
930 }
931 
932 /*-
933  * returns the status field of the RevRepContent with the given
934  * request/sequence id inside a revocation response.
935  * RevRepContent has the revocation statuses in same order as they were sent in
936  * RevReqContent.
937  * returns NULL on error
938  */
939 OSSL_CMP_PKISI *
ossl_cmp_revrepcontent_get_pkisi(OSSL_CMP_REVREPCONTENT * rrep,int rsid)940 ossl_cmp_revrepcontent_get_pkisi(OSSL_CMP_REVREPCONTENT *rrep, int rsid)
941 {
942     OSSL_CMP_PKISI *status;
943 
944     if (!ossl_assert(rrep != NULL))
945         return NULL;
946 
947     if ((status = sk_OSSL_CMP_PKISI_value(rrep->status, rsid)) != NULL)
948         return status;
949 
950     ERR_raise(ERR_LIB_CMP, CMP_R_PKISTATUSINFO_NOT_FOUND);
951     return NULL;
952 }
953 
954 /*
955  * returns the CertId field in the revCerts part of the RevRepContent
956  * with the given request/sequence id inside a revocation response.
957  * RevRepContent has the CertIds in same order as they were sent in
958  * RevReqContent.
959  * returns NULL on error
960  */
961 OSSL_CRMF_CERTID *
ossl_cmp_revrepcontent_get_CertId(OSSL_CMP_REVREPCONTENT * rrep,int rsid)962 ossl_cmp_revrepcontent_get_CertId(OSSL_CMP_REVREPCONTENT *rrep, int rsid)
963 {
964     OSSL_CRMF_CERTID *cid = NULL;
965 
966     if (!ossl_assert(rrep != NULL))
967         return NULL;
968 
969     if ((cid = sk_OSSL_CRMF_CERTID_value(rrep->revCerts, rsid)) != NULL)
970         return cid;
971 
972     ERR_raise(ERR_LIB_CMP, CMP_R_CERTID_NOT_FOUND);
973     return NULL;
974 }
975 
suitable_rid(const ASN1_INTEGER * certReqId,int rid)976 static int suitable_rid(const ASN1_INTEGER *certReqId, int rid)
977 {
978     int trid;
979 
980     if (rid == -1)
981         return 1;
982 
983     trid = ossl_cmp_asn1_get_int(certReqId);
984 
985     if (trid == -1) {
986         ERR_raise(ERR_LIB_CMP, CMP_R_BAD_REQUEST_ID);
987         return 0;
988     }
989     return rid == trid;
990 }
991 
992 /*
993  * returns a pointer to the PollResponse with the given CertReqId
994  * (or the first one in case -1) inside a PollRepContent
995  * returns NULL on error or if no suitable PollResponse available
996  */
997 OSSL_CMP_POLLREP *
ossl_cmp_pollrepcontent_get0_pollrep(const OSSL_CMP_POLLREPCONTENT * prc,int rid)998 ossl_cmp_pollrepcontent_get0_pollrep(const OSSL_CMP_POLLREPCONTENT *prc,
999                                      int rid)
1000 {
1001     OSSL_CMP_POLLREP *pollRep = NULL;
1002     int i;
1003 
1004     if (!ossl_assert(prc != NULL))
1005         return NULL;
1006 
1007     for (i = 0; i < sk_OSSL_CMP_POLLREP_num(prc); i++) {
1008         pollRep = sk_OSSL_CMP_POLLREP_value(prc, i);
1009         if (suitable_rid(pollRep->certReqId, rid))
1010             return pollRep;
1011     }
1012 
1013     ERR_raise_data(ERR_LIB_CMP, CMP_R_CERTRESPONSE_NOT_FOUND,
1014                    "expected certReqId = %d", rid);
1015     return NULL;
1016 }
1017 
1018 /*
1019  * returns a pointer to the CertResponse with the given CertReqId
1020  * (or the first one in case -1) inside a CertRepMessage
1021  * returns NULL on error or if no suitable CertResponse available
1022  */
1023 OSSL_CMP_CERTRESPONSE *
ossl_cmp_certrepmessage_get0_certresponse(const OSSL_CMP_CERTREPMESSAGE * crm,int rid)1024 ossl_cmp_certrepmessage_get0_certresponse(const OSSL_CMP_CERTREPMESSAGE *crm,
1025                                           int rid)
1026 {
1027     OSSL_CMP_CERTRESPONSE *crep = NULL;
1028     int i;
1029 
1030     if (!ossl_assert(crm != NULL && crm->response != NULL))
1031         return NULL;
1032 
1033     for (i = 0; i < sk_OSSL_CMP_CERTRESPONSE_num(crm->response); i++) {
1034         crep = sk_OSSL_CMP_CERTRESPONSE_value(crm->response, i);
1035         if (suitable_rid(crep->certReqId, rid))
1036             return crep;
1037     }
1038 
1039     ERR_raise_data(ERR_LIB_CMP, CMP_R_CERTRESPONSE_NOT_FOUND,
1040                    "expected certReqId = %d", rid);
1041     return NULL;
1042 }
1043 
1044 /*-
1045  * Retrieve the newly enrolled certificate from the given certResponse crep.
1046  * In case of indirect POPO uses the libctx and propq from ctx and private key.
1047  * Returns a pointer to a copy of the found certificate, or NULL if not found.
1048  */
ossl_cmp_certresponse_get1_cert(const OSSL_CMP_CERTRESPONSE * crep,const OSSL_CMP_CTX * ctx,EVP_PKEY * pkey)1049 X509 *ossl_cmp_certresponse_get1_cert(const OSSL_CMP_CERTRESPONSE *crep,
1050                                       const OSSL_CMP_CTX *ctx, EVP_PKEY *pkey)
1051 {
1052     OSSL_CMP_CERTORENCCERT *coec;
1053     X509 *crt = NULL;
1054 
1055     if (!ossl_assert(crep != NULL && ctx != NULL))
1056         return NULL;
1057 
1058     if (crep->certifiedKeyPair
1059             && (coec = crep->certifiedKeyPair->certOrEncCert) != NULL) {
1060         switch (coec->type) {
1061         case OSSL_CMP_CERTORENCCERT_CERTIFICATE:
1062             crt = X509_dup(coec->value.certificate);
1063             break;
1064         case OSSL_CMP_CERTORENCCERT_ENCRYPTEDCERT:
1065             /* cert encrypted for indirect PoP; RFC 4210, 5.2.8.2 */
1066             if (pkey == NULL) {
1067                 ERR_raise(ERR_LIB_CMP, CMP_R_MISSING_PRIVATE_KEY);
1068                 return NULL;
1069             }
1070             crt =
1071                 OSSL_CRMF_ENCRYPTEDVALUE_get1_encCert(coec->value.encryptedCert,
1072                                                       ctx->libctx, ctx->propq,
1073                                                       pkey);
1074             break;
1075         default:
1076             ERR_raise(ERR_LIB_CMP, CMP_R_UNKNOWN_CERT_TYPE);
1077             return NULL;
1078         }
1079     }
1080     if (crt == NULL)
1081         ERR_raise(ERR_LIB_CMP, CMP_R_CERTIFICATE_NOT_FOUND);
1082     else
1083         (void)ossl_x509_set0_libctx(crt, ctx->libctx, ctx->propq);
1084     return crt;
1085 }
1086 
OSSL_CMP_MSG_update_transactionID(OSSL_CMP_CTX * ctx,OSSL_CMP_MSG * msg)1087 int OSSL_CMP_MSG_update_transactionID(OSSL_CMP_CTX *ctx, OSSL_CMP_MSG *msg)
1088 {
1089     if (ctx == NULL || msg == NULL) {
1090         ERR_raise(ERR_LIB_CMP, CMP_R_NULL_ARGUMENT);
1091         return 0;
1092     }
1093     if (!ossl_cmp_hdr_set_transactionID(ctx, msg->header))
1094         return 0;
1095     return msg->header->protectionAlg == NULL
1096             || ossl_cmp_msg_protect(ctx, msg);
1097 }
1098 
OSSL_CMP_MSG_read(const char * file,OSSL_LIB_CTX * libctx,const char * propq)1099 OSSL_CMP_MSG *OSSL_CMP_MSG_read(const char *file, OSSL_LIB_CTX *libctx,
1100                                 const char *propq)
1101 {
1102     OSSL_CMP_MSG *msg;
1103     BIO *bio = NULL;
1104 
1105     if (file == NULL) {
1106         ERR_raise(ERR_LIB_CMP, CMP_R_NULL_ARGUMENT);
1107         return NULL;
1108     }
1109 
1110     msg = OSSL_CMP_MSG_new(libctx, propq);
1111     if (msg == NULL) {
1112         ERR_raise(ERR_LIB_CMP, ERR_R_MALLOC_FAILURE);
1113         return NULL;
1114     }
1115 
1116     if ((bio = BIO_new_file(file, "rb")) == NULL
1117             || d2i_OSSL_CMP_MSG_bio(bio, &msg) == NULL) {
1118         OSSL_CMP_MSG_free(msg);
1119         msg = NULL;
1120     }
1121     BIO_free(bio);
1122     return msg;
1123 }
1124 
OSSL_CMP_MSG_write(const char * file,const OSSL_CMP_MSG * msg)1125 int OSSL_CMP_MSG_write(const char *file, const OSSL_CMP_MSG *msg)
1126 {
1127     BIO *bio;
1128     int res;
1129 
1130     if (file == NULL || msg == NULL) {
1131         ERR_raise(ERR_LIB_CMP, CMP_R_NULL_ARGUMENT);
1132         return -1;
1133     }
1134 
1135     bio = BIO_new_file(file, "wb");
1136     if (bio == NULL)
1137         return -2;
1138     res = i2d_OSSL_CMP_MSG_bio(bio, msg);
1139     BIO_free(bio);
1140     return res;
1141 }
1142 
d2i_OSSL_CMP_MSG(OSSL_CMP_MSG ** msg,const unsigned char ** in,long len)1143 OSSL_CMP_MSG *d2i_OSSL_CMP_MSG(OSSL_CMP_MSG **msg, const unsigned char **in,
1144                                long len)
1145 {
1146     OSSL_LIB_CTX *libctx = NULL;
1147     const char *propq = NULL;
1148 
1149     if (msg != NULL && *msg != NULL) {
1150         libctx  = (*msg)->libctx;
1151         propq = (*msg)->propq;
1152     }
1153 
1154     return (OSSL_CMP_MSG *)ASN1_item_d2i_ex((ASN1_VALUE **)msg, in, len,
1155                                             ASN1_ITEM_rptr(OSSL_CMP_MSG),
1156                                             libctx, propq);
1157 }
1158 
i2d_OSSL_CMP_MSG(const OSSL_CMP_MSG * msg,unsigned char ** out)1159 int i2d_OSSL_CMP_MSG(const OSSL_CMP_MSG *msg, unsigned char **out)
1160 {
1161     return ASN1_item_i2d((const ASN1_VALUE *)msg, out,
1162                          ASN1_ITEM_rptr(OSSL_CMP_MSG));
1163 }
1164 
d2i_OSSL_CMP_MSG_bio(BIO * bio,OSSL_CMP_MSG ** msg)1165 OSSL_CMP_MSG *d2i_OSSL_CMP_MSG_bio(BIO *bio, OSSL_CMP_MSG **msg)
1166 {
1167     OSSL_LIB_CTX *libctx = NULL;
1168     const char *propq = NULL;
1169 
1170     if (msg != NULL && *msg != NULL) {
1171         libctx  = (*msg)->libctx;
1172         propq = (*msg)->propq;
1173     }
1174 
1175     return ASN1_item_d2i_bio_ex(ASN1_ITEM_rptr(OSSL_CMP_MSG), bio, msg, libctx,
1176                                 propq);
1177 }
1178 
i2d_OSSL_CMP_MSG_bio(BIO * bio,const OSSL_CMP_MSG * msg)1179 int i2d_OSSL_CMP_MSG_bio(BIO *bio, const OSSL_CMP_MSG *msg)
1180 {
1181     return ASN1_i2d_bio_of(OSSL_CMP_MSG, i2d_OSSL_CMP_MSG, bio, msg);
1182 }
1183