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      1 /*
      2  * Copyright 2000-2019 The OpenSSL Project Authors. All Rights Reserved.
      3  *
      4  * Licensed under the OpenSSL license (the "License").  You may not use
      5  * this file except in compliance with the License.  You can obtain a copy
      6  * in the file LICENSE in the source distribution or at
      7  * https://www.openssl.org/source/license.html
      8  */
      9 
     10 #ifndef HEADER_OCSP_H
     11 # define HEADER_OCSP_H
     12 
     13 #include <openssl/opensslconf.h>
     14 
     15 /*
     16  * These definitions are outside the OPENSSL_NO_OCSP guard because although for
     17  * historical reasons they have OCSP_* names, they can actually be used
     18  * independently of OCSP. E.g. see RFC5280
     19  */
     20 /*-
     21  *   CRLReason ::= ENUMERATED {
     22  *        unspecified             (0),
     23  *        keyCompromise           (1),
     24  *        cACompromise            (2),
     25  *        affiliationChanged      (3),
     26  *        superseded              (4),
     27  *        cessationOfOperation    (5),
     28  *        certificateHold         (6),
     29  *        removeFromCRL           (8) }
     30  */
     31 #  define OCSP_REVOKED_STATUS_NOSTATUS               -1
     32 #  define OCSP_REVOKED_STATUS_UNSPECIFIED             0
     33 #  define OCSP_REVOKED_STATUS_KEYCOMPROMISE           1
     34 #  define OCSP_REVOKED_STATUS_CACOMPROMISE            2
     35 #  define OCSP_REVOKED_STATUS_AFFILIATIONCHANGED      3
     36 #  define OCSP_REVOKED_STATUS_SUPERSEDED              4
     37 #  define OCSP_REVOKED_STATUS_CESSATIONOFOPERATION    5
     38 #  define OCSP_REVOKED_STATUS_CERTIFICATEHOLD         6
     39 #  define OCSP_REVOKED_STATUS_REMOVEFROMCRL           8
     40 
     41 
     42 # ifndef OPENSSL_NO_OCSP
     43 
     44 #  include <openssl/ossl_typ.h>
     45 #  include <openssl/x509.h>
     46 #  include <openssl/x509v3.h>
     47 #  include <openssl/safestack.h>
     48 #  include <openssl/ocsperr.h>
     49 
     50 #ifdef  __cplusplus
     51 extern "C" {
     52 #endif
     53 
     54 /* Various flags and values */
     55 
     56 #  define OCSP_DEFAULT_NONCE_LENGTH       16
     57 
     58 #  define OCSP_NOCERTS                    0x1
     59 #  define OCSP_NOINTERN                   0x2
     60 #  define OCSP_NOSIGS                     0x4
     61 #  define OCSP_NOCHAIN                    0x8
     62 #  define OCSP_NOVERIFY                   0x10
     63 #  define OCSP_NOEXPLICIT                 0x20
     64 #  define OCSP_NOCASIGN                   0x40
     65 #  define OCSP_NODELEGATED                0x80
     66 #  define OCSP_NOCHECKS                   0x100
     67 #  define OCSP_TRUSTOTHER                 0x200
     68 #  define OCSP_RESPID_KEY                 0x400
     69 #  define OCSP_NOTIME                     0x800
     70 
     71 typedef struct ocsp_cert_id_st OCSP_CERTID;
     72 
     73 DEFINE_STACK_OF(OCSP_CERTID)
     74 
     75 typedef struct ocsp_one_request_st OCSP_ONEREQ;
     76 
     77 DEFINE_STACK_OF(OCSP_ONEREQ)
     78 
     79 typedef struct ocsp_req_info_st OCSP_REQINFO;
     80 typedef struct ocsp_signature_st OCSP_SIGNATURE;
     81 typedef struct ocsp_request_st OCSP_REQUEST;
     82 
     83 #  define OCSP_RESPONSE_STATUS_SUCCESSFUL           0
     84 #  define OCSP_RESPONSE_STATUS_MALFORMEDREQUEST     1
     85 #  define OCSP_RESPONSE_STATUS_INTERNALERROR        2
     86 #  define OCSP_RESPONSE_STATUS_TRYLATER             3
     87 #  define OCSP_RESPONSE_STATUS_SIGREQUIRED          5
     88 #  define OCSP_RESPONSE_STATUS_UNAUTHORIZED         6
     89 
     90 typedef struct ocsp_resp_bytes_st OCSP_RESPBYTES;
     91 
     92 #  define V_OCSP_RESPID_NAME 0
     93 #  define V_OCSP_RESPID_KEY  1
     94 
     95 DEFINE_STACK_OF(OCSP_RESPID)
     96 
     97 typedef struct ocsp_revoked_info_st OCSP_REVOKEDINFO;
     98 
     99 #  define V_OCSP_CERTSTATUS_GOOD    0
    100 #  define V_OCSP_CERTSTATUS_REVOKED 1
    101 #  define V_OCSP_CERTSTATUS_UNKNOWN 2
    102 
    103 typedef struct ocsp_cert_status_st OCSP_CERTSTATUS;
    104 typedef struct ocsp_single_response_st OCSP_SINGLERESP;
    105 
    106 DEFINE_STACK_OF(OCSP_SINGLERESP)
    107 
    108 typedef struct ocsp_response_data_st OCSP_RESPDATA;
    109 
    110 typedef struct ocsp_basic_response_st OCSP_BASICRESP;
    111 
    112 typedef struct ocsp_crl_id_st OCSP_CRLID;
    113 typedef struct ocsp_service_locator_st OCSP_SERVICELOC;
    114 
    115 #  define PEM_STRING_OCSP_REQUEST "OCSP REQUEST"
    116 #  define PEM_STRING_OCSP_RESPONSE "OCSP RESPONSE"
    117 
    118 #  define d2i_OCSP_REQUEST_bio(bp,p) ASN1_d2i_bio_of(OCSP_REQUEST,OCSP_REQUEST_new,d2i_OCSP_REQUEST,bp,p)
    119 
    120 #  define d2i_OCSP_RESPONSE_bio(bp,p) ASN1_d2i_bio_of(OCSP_RESPONSE,OCSP_RESPONSE_new,d2i_OCSP_RESPONSE,bp,p)
    121 
    122 #  define PEM_read_bio_OCSP_REQUEST(bp,x,cb) (OCSP_REQUEST *)PEM_ASN1_read_bio( \
    123      (char *(*)())d2i_OCSP_REQUEST,PEM_STRING_OCSP_REQUEST, \
    124      bp,(char **)(x),cb,NULL)
    125 
    126 #  define PEM_read_bio_OCSP_RESPONSE(bp,x,cb) (OCSP_RESPONSE *)PEM_ASN1_read_bio(\
    127      (char *(*)())d2i_OCSP_RESPONSE,PEM_STRING_OCSP_RESPONSE, \
    128      bp,(char **)(x),cb,NULL)
    129 
    130 #  define PEM_write_bio_OCSP_REQUEST(bp,o) \
    131     PEM_ASN1_write_bio((int (*)())i2d_OCSP_REQUEST,PEM_STRING_OCSP_REQUEST,\
    132                         bp,(char *)(o), NULL,NULL,0,NULL,NULL)
    133 
    134 #  define PEM_write_bio_OCSP_RESPONSE(bp,o) \
    135     PEM_ASN1_write_bio((int (*)())i2d_OCSP_RESPONSE,PEM_STRING_OCSP_RESPONSE,\
    136                         bp,(char *)(o), NULL,NULL,0,NULL,NULL)
    137 
    138 #  define i2d_OCSP_RESPONSE_bio(bp,o) ASN1_i2d_bio_of(OCSP_RESPONSE,i2d_OCSP_RESPONSE,bp,o)
    139 
    140 #  define i2d_OCSP_REQUEST_bio(bp,o) ASN1_i2d_bio_of(OCSP_REQUEST,i2d_OCSP_REQUEST,bp,o)
    141 
    142 #  define ASN1_BIT_STRING_digest(data,type,md,len) \
    143         ASN1_item_digest(ASN1_ITEM_rptr(ASN1_BIT_STRING),type,data,md,len)
    144 
    145 #  define OCSP_CERTSTATUS_dup(cs)\
    146                 (OCSP_CERTSTATUS*)ASN1_dup((int(*)())i2d_OCSP_CERTSTATUS,\
    147                 (char *(*)())d2i_OCSP_CERTSTATUS,(char *)(cs))
    148 
    149 OCSP_CERTID *OCSP_CERTID_dup(OCSP_CERTID *id);
    150 
    151 OCSP_RESPONSE *OCSP_sendreq_bio(BIO *b, const char *path, OCSP_REQUEST *req);
    152 OCSP_REQ_CTX *OCSP_sendreq_new(BIO *io, const char *path, OCSP_REQUEST *req,
    153                                int maxline);
    154 int OCSP_REQ_CTX_nbio(OCSP_REQ_CTX *rctx);
    155 int OCSP_sendreq_nbio(OCSP_RESPONSE **presp, OCSP_REQ_CTX *rctx);
    156 OCSP_REQ_CTX *OCSP_REQ_CTX_new(BIO *io, int maxline);
    157 void OCSP_REQ_CTX_free(OCSP_REQ_CTX *rctx);
    158 void OCSP_set_max_response_length(OCSP_REQ_CTX *rctx, unsigned long len);
    159 int OCSP_REQ_CTX_i2d(OCSP_REQ_CTX *rctx, const ASN1_ITEM *it,
    160                      ASN1_VALUE *val);
    161 int OCSP_REQ_CTX_nbio_d2i(OCSP_REQ_CTX *rctx, ASN1_VALUE **pval,
    162                           const ASN1_ITEM *it);
    163 BIO *OCSP_REQ_CTX_get0_mem_bio(OCSP_REQ_CTX *rctx);
    164 int OCSP_REQ_CTX_http(OCSP_REQ_CTX *rctx, const char *op, const char *path);
    165 int OCSP_REQ_CTX_set1_req(OCSP_REQ_CTX *rctx, OCSP_REQUEST *req);
    166 int OCSP_REQ_CTX_add1_header(OCSP_REQ_CTX *rctx,
    167                              const char *name, const char *value);
    168 
    169 OCSP_CERTID *OCSP_cert_to_id(const EVP_MD *dgst, const X509 *subject,
    170                              const X509 *issuer);
    171 
    172 OCSP_CERTID *OCSP_cert_id_new(const EVP_MD *dgst,
    173                               const X509_NAME *issuerName,
    174                               const ASN1_BIT_STRING *issuerKey,
    175                               const ASN1_INTEGER *serialNumber);
    176 
    177 OCSP_ONEREQ *OCSP_request_add0_id(OCSP_REQUEST *req, OCSP_CERTID *cid);
    178 
    179 int OCSP_request_add1_nonce(OCSP_REQUEST *req, unsigned char *val, int len);
    180 int OCSP_basic_add1_nonce(OCSP_BASICRESP *resp, unsigned char *val, int len);
    181 int OCSP_check_nonce(OCSP_REQUEST *req, OCSP_BASICRESP *bs);
    182 int OCSP_copy_nonce(OCSP_BASICRESP *resp, OCSP_REQUEST *req);
    183 
    184 int OCSP_request_set1_name(OCSP_REQUEST *req, X509_NAME *nm);
    185 int OCSP_request_add1_cert(OCSP_REQUEST *req, X509 *cert);
    186 
    187 int OCSP_request_sign(OCSP_REQUEST *req,
    188                       X509 *signer,
    189                       EVP_PKEY *key,
    190                       const EVP_MD *dgst,
    191                       STACK_OF(X509) *certs, unsigned long flags);
    192 
    193 int OCSP_response_status(OCSP_RESPONSE *resp);
    194 OCSP_BASICRESP *OCSP_response_get1_basic(OCSP_RESPONSE *resp);
    195 
    196 const ASN1_OCTET_STRING *OCSP_resp_get0_signature(const OCSP_BASICRESP *bs);
    197 const X509_ALGOR *OCSP_resp_get0_tbs_sigalg(const OCSP_BASICRESP *bs);
    198 const OCSP_RESPDATA *OCSP_resp_get0_respdata(const OCSP_BASICRESP *bs);
    199 int OCSP_resp_get0_signer(OCSP_BASICRESP *bs, X509 **signer,
    200                           STACK_OF(X509) *extra_certs);
    201 
    202 int OCSP_resp_count(OCSP_BASICRESP *bs);
    203 OCSP_SINGLERESP *OCSP_resp_get0(OCSP_BASICRESP *bs, int idx);
    204 const ASN1_GENERALIZEDTIME *OCSP_resp_get0_produced_at(const OCSP_BASICRESP* bs);
    205 const STACK_OF(X509) *OCSP_resp_get0_certs(const OCSP_BASICRESP *bs);
    206 int OCSP_resp_get0_id(const OCSP_BASICRESP *bs,
    207                       const ASN1_OCTET_STRING **pid,
    208                       const X509_NAME **pname);
    209 int OCSP_resp_get1_id(const OCSP_BASICRESP *bs,
    210                       ASN1_OCTET_STRING **pid,
    211                       X509_NAME **pname);
    212 
    213 int OCSP_resp_find(OCSP_BASICRESP *bs, OCSP_CERTID *id, int last);
    214 int OCSP_single_get0_status(OCSP_SINGLERESP *single, int *reason,
    215                             ASN1_GENERALIZEDTIME **revtime,
    216                             ASN1_GENERALIZEDTIME **thisupd,
    217                             ASN1_GENERALIZEDTIME **nextupd);
    218 int OCSP_resp_find_status(OCSP_BASICRESP *bs, OCSP_CERTID *id, int *status,
    219                           int *reason,
    220                           ASN1_GENERALIZEDTIME **revtime,
    221                           ASN1_GENERALIZEDTIME **thisupd,
    222                           ASN1_GENERALIZEDTIME **nextupd);
    223 int OCSP_check_validity(ASN1_GENERALIZEDTIME *thisupd,
    224                         ASN1_GENERALIZEDTIME *nextupd, long sec, long maxsec);
    225 
    226 int OCSP_request_verify(OCSP_REQUEST *req, STACK_OF(X509) *certs,
    227                         X509_STORE *store, unsigned long flags);
    228 
    229 int OCSP_parse_url(const char *url, char **phost, char **pport, char **ppath,
    230                    int *pssl);
    231 
    232 int OCSP_id_issuer_cmp(const OCSP_CERTID *a, const OCSP_CERTID *b);
    233 int OCSP_id_cmp(const OCSP_CERTID *a, const OCSP_CERTID *b);
    234 
    235 int OCSP_request_onereq_count(OCSP_REQUEST *req);
    236 OCSP_ONEREQ *OCSP_request_onereq_get0(OCSP_REQUEST *req, int i);
    237 OCSP_CERTID *OCSP_onereq_get0_id(OCSP_ONEREQ *one);
    238 int OCSP_id_get0_info(ASN1_OCTET_STRING **piNameHash, ASN1_OBJECT **pmd,
    239                       ASN1_OCTET_STRING **pikeyHash,
    240                       ASN1_INTEGER **pserial, OCSP_CERTID *cid);
    241 int OCSP_request_is_signed(OCSP_REQUEST *req);
    242 OCSP_RESPONSE *OCSP_response_create(int status, OCSP_BASICRESP *bs);
    243 OCSP_SINGLERESP *OCSP_basic_add1_status(OCSP_BASICRESP *rsp,
    244                                         OCSP_CERTID *cid,
    245                                         int status, int reason,
    246                                         ASN1_TIME *revtime,
    247                                         ASN1_TIME *thisupd,
    248                                         ASN1_TIME *nextupd);
    249 int OCSP_basic_add1_cert(OCSP_BASICRESP *resp, X509 *cert);
    250 int OCSP_basic_sign(OCSP_BASICRESP *brsp,
    251                     X509 *signer, EVP_PKEY *key, const EVP_MD *dgst,
    252                     STACK_OF(X509) *certs, unsigned long flags);
    253 int OCSP_basic_sign_ctx(OCSP_BASICRESP *brsp,
    254                         X509 *signer, EVP_MD_CTX *ctx,
    255                         STACK_OF(X509) *certs, unsigned long flags);
    256 int OCSP_RESPID_set_by_name(OCSP_RESPID *respid, X509 *cert);
    257 int OCSP_RESPID_set_by_key(OCSP_RESPID *respid, X509 *cert);
    258 int OCSP_RESPID_match(OCSP_RESPID *respid, X509 *cert);
    259 
    260 X509_EXTENSION *OCSP_crlID_new(const char *url, long *n, char *tim);
    261 
    262 X509_EXTENSION *OCSP_accept_responses_new(char **oids);
    263 
    264 X509_EXTENSION *OCSP_archive_cutoff_new(char *tim);
    265 
    266 X509_EXTENSION *OCSP_url_svcloc_new(X509_NAME *issuer, const char **urls);
    267 
    268 int OCSP_REQUEST_get_ext_count(OCSP_REQUEST *x);
    269 int OCSP_REQUEST_get_ext_by_NID(OCSP_REQUEST *x, int nid, int lastpos);
    270 int OCSP_REQUEST_get_ext_by_OBJ(OCSP_REQUEST *x, const ASN1_OBJECT *obj,
    271                                 int lastpos);
    272 int OCSP_REQUEST_get_ext_by_critical(OCSP_REQUEST *x, int crit, int lastpos);
    273 X509_EXTENSION *OCSP_REQUEST_get_ext(OCSP_REQUEST *x, int loc);
    274 X509_EXTENSION *OCSP_REQUEST_delete_ext(OCSP_REQUEST *x, int loc);
    275 void *OCSP_REQUEST_get1_ext_d2i(OCSP_REQUEST *x, int nid, int *crit,
    276                                 int *idx);
    277 int OCSP_REQUEST_add1_ext_i2d(OCSP_REQUEST *x, int nid, void *value, int crit,
    278                               unsigned long flags);
    279 int OCSP_REQUEST_add_ext(OCSP_REQUEST *x, X509_EXTENSION *ex, int loc);
    280 
    281 int OCSP_ONEREQ_get_ext_count(OCSP_ONEREQ *x);
    282 int OCSP_ONEREQ_get_ext_by_NID(OCSP_ONEREQ *x, int nid, int lastpos);
    283 int OCSP_ONEREQ_get_ext_by_OBJ(OCSP_ONEREQ *x, const ASN1_OBJECT *obj, int lastpos);
    284 int OCSP_ONEREQ_get_ext_by_critical(OCSP_ONEREQ *x, int crit, int lastpos);
    285 X509_EXTENSION *OCSP_ONEREQ_get_ext(OCSP_ONEREQ *x, int loc);
    286 X509_EXTENSION *OCSP_ONEREQ_delete_ext(OCSP_ONEREQ *x, int loc);
    287 void *OCSP_ONEREQ_get1_ext_d2i(OCSP_ONEREQ *x, int nid, int *crit, int *idx);
    288 int OCSP_ONEREQ_add1_ext_i2d(OCSP_ONEREQ *x, int nid, void *value, int crit,
    289                              unsigned long flags);
    290 int OCSP_ONEREQ_add_ext(OCSP_ONEREQ *x, X509_EXTENSION *ex, int loc);
    291 
    292 int OCSP_BASICRESP_get_ext_count(OCSP_BASICRESP *x);
    293 int OCSP_BASICRESP_get_ext_by_NID(OCSP_BASICRESP *x, int nid, int lastpos);
    294 int OCSP_BASICRESP_get_ext_by_OBJ(OCSP_BASICRESP *x, const ASN1_OBJECT *obj,
    295                                   int lastpos);
    296 int OCSP_BASICRESP_get_ext_by_critical(OCSP_BASICRESP *x, int crit,
    297                                        int lastpos);
    298 X509_EXTENSION *OCSP_BASICRESP_get_ext(OCSP_BASICRESP *x, int loc);
    299 X509_EXTENSION *OCSP_BASICRESP_delete_ext(OCSP_BASICRESP *x, int loc);
    300 void *OCSP_BASICRESP_get1_ext_d2i(OCSP_BASICRESP *x, int nid, int *crit,
    301                                   int *idx);
    302 int OCSP_BASICRESP_add1_ext_i2d(OCSP_BASICRESP *x, int nid, void *value,
    303                                 int crit, unsigned long flags);
    304 int OCSP_BASICRESP_add_ext(OCSP_BASICRESP *x, X509_EXTENSION *ex, int loc);
    305 
    306 int OCSP_SINGLERESP_get_ext_count(OCSP_SINGLERESP *x);
    307 int OCSP_SINGLERESP_get_ext_by_NID(OCSP_SINGLERESP *x, int nid, int lastpos);
    308 int OCSP_SINGLERESP_get_ext_by_OBJ(OCSP_SINGLERESP *x, const ASN1_OBJECT *obj,
    309                                    int lastpos);
    310 int OCSP_SINGLERESP_get_ext_by_critical(OCSP_SINGLERESP *x, int crit,
    311                                         int lastpos);
    312 X509_EXTENSION *OCSP_SINGLERESP_get_ext(OCSP_SINGLERESP *x, int loc);
    313 X509_EXTENSION *OCSP_SINGLERESP_delete_ext(OCSP_SINGLERESP *x, int loc);
    314 void *OCSP_SINGLERESP_get1_ext_d2i(OCSP_SINGLERESP *x, int nid, int *crit,
    315                                    int *idx);
    316 int OCSP_SINGLERESP_add1_ext_i2d(OCSP_SINGLERESP *x, int nid, void *value,
    317                                  int crit, unsigned long flags);
    318 int OCSP_SINGLERESP_add_ext(OCSP_SINGLERESP *x, X509_EXTENSION *ex, int loc);
    319 const OCSP_CERTID *OCSP_SINGLERESP_get0_id(const OCSP_SINGLERESP *x);
    320 
    321 DECLARE_ASN1_FUNCTIONS(OCSP_SINGLERESP)
    322 DECLARE_ASN1_FUNCTIONS(OCSP_CERTSTATUS)
    323 DECLARE_ASN1_FUNCTIONS(OCSP_REVOKEDINFO)
    324 DECLARE_ASN1_FUNCTIONS(OCSP_BASICRESP)
    325 DECLARE_ASN1_FUNCTIONS(OCSP_RESPDATA)
    326 DECLARE_ASN1_FUNCTIONS(OCSP_RESPID)
    327 DECLARE_ASN1_FUNCTIONS(OCSP_RESPONSE)
    328 DECLARE_ASN1_FUNCTIONS(OCSP_RESPBYTES)
    329 DECLARE_ASN1_FUNCTIONS(OCSP_ONEREQ)
    330 DECLARE_ASN1_FUNCTIONS(OCSP_CERTID)
    331 DECLARE_ASN1_FUNCTIONS(OCSP_REQUEST)
    332 DECLARE_ASN1_FUNCTIONS(OCSP_SIGNATURE)
    333 DECLARE_ASN1_FUNCTIONS(OCSP_REQINFO)
    334 DECLARE_ASN1_FUNCTIONS(OCSP_CRLID)
    335 DECLARE_ASN1_FUNCTIONS(OCSP_SERVICELOC)
    336 
    337 const char *OCSP_response_status_str(long s);
    338 const char *OCSP_cert_status_str(long s);
    339 const char *OCSP_crl_reason_str(long s);
    340 
    341 int OCSP_REQUEST_print(BIO *bp, OCSP_REQUEST *a, unsigned long flags);
    342 int OCSP_RESPONSE_print(BIO *bp, OCSP_RESPONSE *o, unsigned long flags);
    343 
    344 int OCSP_basic_verify(OCSP_BASICRESP *bs, STACK_OF(X509) *certs,
    345                       X509_STORE *st, unsigned long flags);
    346 
    347 
    348 #  ifdef  __cplusplus
    349 }
    350 #  endif
    351 # endif
    352 #endif
    353