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/*
* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
* 2013.
*/
/* ====================================================================
* Copyright (c) 2013 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
/*
* This structure holds all parameters associated with a verify operation by
* including an X509_VERIFY_PARAM structure in related structures the
* parameters used can be customized
*/
struct X509_VERIFY_PARAM_st {
char *name;
time_t check_time; /* Time to use */
unsigned long inh_flags; /* Inheritance flags */
unsigned long flags; /* Various verify flags */
int purpose; /* purpose to check untrusted certificates */
int trust; /* trust setting to check */
int depth; /* Verify depth */
int auth_level; /* Security level for chain verification */
STACK_OF(ASN1_OBJECT) *policies; /* Permissible policies */
/* Peer identity details */
STACK_OF(OPENSSL_STRING) *hosts; /* Set of acceptable names */
unsigned int hostflags; /* Flags to control matching features */
char *peername; /* Matching hostname in peer certificate */
char *email; /* If not NULL email address to match */
size_t emaillen;
unsigned char *ip; /* If not NULL IP address to match */
size_t iplen; /* Length of IP address */
};
/* No error callback if depth < 0 */
int x509_check_cert_time(X509_STORE_CTX *ctx, X509 *x, int depth);
/* a sequence of these are used */
struct x509_attributes_st {
ASN1_OBJECT *object;
STACK_OF(ASN1_TYPE) *set;
};
struct X509_extension_st {
ASN1_OBJECT *object;
ASN1_BOOLEAN critical;
ASN1_OCTET_STRING value;
};
/*
* Method to handle CRL access. In general a CRL could be very large (several
* Mb) and can consume large amounts of resources if stored in memory by
* multiple processes. This method allows general CRL operations to be
* redirected to more efficient callbacks: for example a CRL entry database.
*/
#define X509_CRL_METHOD_DYNAMIC 1
struct x509_crl_method_st {
int flags;
int (*crl_init) (X509_CRL *crl);
int (*crl_free) (X509_CRL *crl);
int (*crl_lookup) (X509_CRL *crl, X509_REVOKED **ret,
ASN1_INTEGER *ser, X509_NAME *issuer);
int (*crl_verify) (X509_CRL *crl, EVP_PKEY *pk);
};
struct x509_lookup_method_st {
const char *name;
int (*new_item) (X509_LOOKUP *ctx);
void (*free) (X509_LOOKUP *ctx);
int (*init) (X509_LOOKUP *ctx);
int (*shutdown) (X509_LOOKUP *ctx);
int (*ctrl) (X509_LOOKUP *ctx, int cmd, const char *argc, long argl,
char **ret);
int (*get_by_subject) (X509_LOOKUP *ctx, int type, X509_NAME *name,
X509_OBJECT *ret);
int (*get_by_issuer_serial) (X509_LOOKUP *ctx, int type, X509_NAME *name,
ASN1_INTEGER *serial, X509_OBJECT *ret);
int (*get_by_fingerprint) (X509_LOOKUP *ctx, int type,
unsigned char *bytes, int len,
X509_OBJECT *ret);
int (*get_by_alias) (X509_LOOKUP *ctx, int type, char *str, int len,
X509_OBJECT *ret);
};
/* This is the functions plus an instance of the local variables. */
struct x509_lookup_st {
int init; /* have we been started */
int skip; /* don't use us. */
X509_LOOKUP_METHOD *method; /* the functions */
char *method_data; /* method data */
X509_STORE *store_ctx; /* who owns us */
};
/*
* This is used to hold everything. It is used for all certificate
* validation. Once we have a certificate chain, the 'verify' function is
* then called to actually check the cert chain.
*/
struct x509_store_st {
/* The following is a cache of trusted certs */
int cache; /* if true, stash any hits */
STACK_OF(X509_OBJECT) *objs; /* Cache of all objects */
/* These are external lookup methods */
STACK_OF(X509_LOOKUP) *get_cert_methods;
X509_VERIFY_PARAM *param;
/* Callbacks for various operations */
/* called to verify a certificate */
int (*verify) (X509_STORE_CTX *ctx);
/* error callback */
int (*verify_cb) (int ok, X509_STORE_CTX *ctx);
/* get issuers cert from ctx */
int (*get_issuer) (X509 **issuer, X509_STORE_CTX *ctx, X509 *x);
/* check issued */
int (*check_issued) (X509_STORE_CTX *ctx, X509 *x, X509 *issuer);
/* Check revocation status of chain */
int (*check_revocation) (X509_STORE_CTX *ctx);
/* retrieve CRL */
int (*get_crl) (X509_STORE_CTX *ctx, X509_CRL **crl, X509 *x);
/* Check CRL validity */
int (*check_crl) (X509_STORE_CTX *ctx, X509_CRL *crl);
/* Check certificate against CRL */
int (*cert_crl) (X509_STORE_CTX *ctx, X509_CRL *crl, X509 *x);
STACK_OF(X509) *(*lookup_certs) (X509_STORE_CTX *ctx, X509_NAME *nm);
STACK_OF(X509_CRL) *(*lookup_crls) (X509_STORE_CTX *ctx, X509_NAME *nm);
int (*cleanup) (X509_STORE_CTX *ctx);
CRYPTO_EX_DATA ex_data;
int references;
CRYPTO_RWLOCK *lock;
};
typedef struct lookup_dir_hashes_st BY_DIR_HASH;
typedef struct lookup_dir_entry_st BY_DIR_ENTRY;
DEFINE_STACK_OF(BY_DIR_HASH)
DEFINE_STACK_OF(BY_DIR_ENTRY)
typedef STACK_OF(X509_NAME_ENTRY) STACK_OF_X509_NAME_ENTRY;
DEFINE_STACK_OF(STACK_OF_X509_NAME_ENTRY)
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