267 lines
8.8 KiB
C
267 lines
8.8 KiB
C
/*
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* Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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/* Internal X509 structures and functions: not for application use */
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/* Note: unless otherwise stated a field pointer is mandatory and should
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* never be set to NULL: the ASN.1 code and accessors rely on mandatory
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* fields never being NULL.
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*/
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/*
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* name entry structure, equivalent to AttributeTypeAndValue defined
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* in RFC5280 et al.
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*/
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struct X509_name_entry_st {
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ASN1_OBJECT *object; /* AttributeType */
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ASN1_STRING *value; /* AttributeValue */
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int set; /* index of RDNSequence for this entry */
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int size; /* temp variable */
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};
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/* Name from RFC 5280. */
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struct X509_name_st {
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STACK_OF(X509_NAME_ENTRY) *entries; /* DN components */
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int modified; /* true if 'bytes' needs to be built */
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BUF_MEM *bytes; /* cached encoding: cannot be NULL */
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/* canonical encoding used for rapid Name comparison */
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unsigned char *canon_enc;
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int canon_enclen;
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} /* X509_NAME */ ;
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/* PKCS#10 certificate request */
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struct X509_req_info_st {
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ASN1_ENCODING enc; /* cached encoding of signed part */
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ASN1_INTEGER *version; /* version, defaults to v1(0) so can be NULL */
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X509_NAME *subject; /* certificate request DN */
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X509_PUBKEY *pubkey; /* public key of request */
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/*
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* Zero or more attributes.
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* NB: although attributes is a mandatory field some broken
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* encodings omit it so this may be NULL in that case.
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*/
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STACK_OF(X509_ATTRIBUTE) *attributes;
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};
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struct X509_req_st {
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X509_REQ_INFO req_info; /* signed certificate request data */
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X509_ALGOR sig_alg; /* signature algorithm */
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ASN1_BIT_STRING *signature; /* signature */
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int references;
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CRYPTO_RWLOCK *lock;
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};
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struct X509_crl_info_st {
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ASN1_INTEGER *version; /* version: defaults to v1(0) so may be NULL */
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X509_ALGOR sig_alg; /* signature algorithm */
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X509_NAME *issuer; /* CRL issuer name */
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ASN1_TIME *lastUpdate; /* lastUpdate field */
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ASN1_TIME *nextUpdate; /* nextUpdate field: optional */
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STACK_OF(X509_REVOKED) *revoked; /* revoked entries: optional */
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STACK_OF(X509_EXTENSION) *extensions; /* extensions: optional */
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ASN1_ENCODING enc; /* encoding of signed portion of CRL */
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};
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struct X509_crl_st {
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X509_CRL_INFO crl; /* signed CRL data */
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X509_ALGOR sig_alg; /* CRL signature algorithm */
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ASN1_BIT_STRING signature; /* CRL signature */
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int references;
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int flags;
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/*
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* Cached copies of decoded extension values, since extensions
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* are optional any of these can be NULL.
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*/
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AUTHORITY_KEYID *akid;
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ISSUING_DIST_POINT *idp;
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/* Convenient breakdown of IDP */
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int idp_flags;
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int idp_reasons;
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/* CRL and base CRL numbers for delta processing */
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ASN1_INTEGER *crl_number;
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ASN1_INTEGER *base_crl_number;
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STACK_OF(GENERAL_NAMES) *issuers;
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/* hash of CRL */
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unsigned char sha1_hash[SHA_DIGEST_LENGTH];
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/* alternative method to handle this CRL */
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const X509_CRL_METHOD *meth;
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void *meth_data;
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CRYPTO_RWLOCK *lock;
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};
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struct x509_revoked_st {
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ASN1_INTEGER serialNumber; /* revoked entry serial number */
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ASN1_TIME *revocationDate; /* revocation date */
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STACK_OF(X509_EXTENSION) *extensions; /* CRL entry extensions: optional */
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/* decoded value of CRLissuer extension: set if indirect CRL */
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STACK_OF(GENERAL_NAME) *issuer;
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/* revocation reason: set to CRL_REASON_NONE if reason extension absent */
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int reason;
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/*
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* CRL entries are reordered for faster lookup of serial numbers. This
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* field contains the original load sequence for this entry.
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*/
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int sequence;
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};
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/*
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* This stuff is certificate "auxiliary info": it contains details which are
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* useful in certificate stores and databases. When used this is tagged onto
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* the end of the certificate itself. OpenSSL specific structure not defined
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* in any RFC.
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*/
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struct x509_cert_aux_st {
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STACK_OF(ASN1_OBJECT) *trust; /* trusted uses */
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STACK_OF(ASN1_OBJECT) *reject; /* rejected uses */
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ASN1_UTF8STRING *alias; /* "friendly name" */
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ASN1_OCTET_STRING *keyid; /* key id of private key */
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STACK_OF(X509_ALGOR) *other; /* other unspecified info */
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};
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struct x509_cinf_st {
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ASN1_INTEGER *version; /* [ 0 ] default of v1 */
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ASN1_INTEGER serialNumber;
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X509_ALGOR signature;
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X509_NAME *issuer;
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X509_VAL validity;
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X509_NAME *subject;
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X509_PUBKEY *key;
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ASN1_BIT_STRING *issuerUID; /* [ 1 ] optional in v2 */
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ASN1_BIT_STRING *subjectUID; /* [ 2 ] optional in v2 */
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STACK_OF(X509_EXTENSION) *extensions; /* [ 3 ] optional in v3 */
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ASN1_ENCODING enc;
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};
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struct x509_st {
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X509_CINF cert_info;
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X509_ALGOR sig_alg;
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ASN1_BIT_STRING signature;
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int references;
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CRYPTO_EX_DATA ex_data;
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/* These contain copies of various extension values */
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long ex_pathlen;
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long ex_pcpathlen;
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uint32_t ex_flags;
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uint32_t ex_kusage;
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uint32_t ex_xkusage;
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uint32_t ex_nscert;
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ASN1_OCTET_STRING *skid;
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AUTHORITY_KEYID *akid;
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X509_POLICY_CACHE *policy_cache;
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STACK_OF(DIST_POINT) *crldp;
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STACK_OF(GENERAL_NAME) *altname;
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NAME_CONSTRAINTS *nc;
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#ifndef OPENSSL_NO_RFC3779
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STACK_OF(IPAddressFamily) *rfc3779_addr;
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struct ASIdentifiers_st *rfc3779_asid;
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# endif
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unsigned char sha1_hash[SHA_DIGEST_LENGTH];
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X509_CERT_AUX *aux;
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CRYPTO_RWLOCK *lock;
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} /* X509 */ ;
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/*
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* This is a used when verifying cert chains. Since the gathering of the
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* cert chain can take some time (and have to be 'retried', this needs to be
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* kept and passed around.
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*/
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struct x509_store_ctx_st { /* X509_STORE_CTX */
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X509_STORE *ctx;
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/* used when looking up certs */
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int current_method;
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/* The following are set by the caller */
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/* The cert to check */
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X509 *cert;
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/* chain of X509s - untrusted - passed in */
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STACK_OF(X509) *untrusted;
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/* set of CRLs passed in */
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STACK_OF(X509_CRL) *crls;
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X509_VERIFY_PARAM *param;
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/* Other info for use with get_issuer() */
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void *other_ctx;
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/* Callbacks for various operations */
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/* called to verify a certificate */
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int (*verify) (X509_STORE_CTX *ctx);
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/* error callback */
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int (*verify_cb) (int ok, X509_STORE_CTX *ctx);
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/* get issuers cert from ctx */
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int (*get_issuer) (X509 **issuer, X509_STORE_CTX *ctx, X509 *x);
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/* check issued */
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int (*check_issued) (X509_STORE_CTX *ctx, X509 *x, X509 *issuer);
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/* Check revocation status of chain */
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int (*check_revocation) (X509_STORE_CTX *ctx);
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/* retrieve CRL */
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int (*get_crl) (X509_STORE_CTX *ctx, X509_CRL **crl, X509 *x);
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/* Check CRL validity */
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int (*check_crl) (X509_STORE_CTX *ctx, X509_CRL *crl);
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/* Check certificate against CRL */
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int (*cert_crl) (X509_STORE_CTX *ctx, X509_CRL *crl, X509 *x);
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int (*check_policy) (X509_STORE_CTX *ctx);
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STACK_OF(X509) *(*lookup_certs) (X509_STORE_CTX *ctx, X509_NAME *nm);
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STACK_OF(X509_CRL) *(*lookup_crls) (X509_STORE_CTX *ctx, X509_NAME *nm);
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int (*cleanup) (X509_STORE_CTX *ctx);
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/* The following is built up */
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/* if 0, rebuild chain */
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int valid;
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/* number of untrusted certs */
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int num_untrusted;
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/* chain of X509s - built up and trusted */
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STACK_OF(X509) *chain;
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/* Valid policy tree */
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X509_POLICY_TREE *tree;
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/* Require explicit policy value */
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int explicit_policy;
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/* When something goes wrong, this is why */
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int error_depth;
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int error;
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X509 *current_cert;
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/* cert currently being tested as valid issuer */
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X509 *current_issuer;
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/* current CRL */
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X509_CRL *current_crl;
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/* score of current CRL */
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int current_crl_score;
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/* Reason mask */
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unsigned int current_reasons;
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/* For CRL path validation: parent context */
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X509_STORE_CTX *parent;
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CRYPTO_EX_DATA ex_data;
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SSL_DANE *dane;
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/* signed via bare TA public key, rather than CA certificate */
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int bare_ta_signed;
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};
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/* PKCS#8 private key info structure */
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struct pkcs8_priv_key_info_st {
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ASN1_INTEGER *version;
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X509_ALGOR *pkeyalg;
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ASN1_OCTET_STRING *pkey;
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STACK_OF(X509_ATTRIBUTE) *attributes;
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};
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struct X509_sig_st {
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X509_ALGOR *algor;
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ASN1_OCTET_STRING *digest;
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};
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struct x509_object_st {
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/* one of the above types */
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X509_LOOKUP_TYPE type;
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union {
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char *ptr;
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X509 *x509;
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X509_CRL *crl;
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EVP_PKEY *pkey;
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} data;
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};
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int a2i_ipadd(unsigned char *ipout, const char *ipasc);
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