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/* crypto/x509/x509_vfy.h */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* 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 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 acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS 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 AUTHOR OR 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.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#ifndef HEADER_X509_H
#include <openssl/x509.h>
/* openssl/x509.h ends up #include-ing this file at about the only
* appropriate moment. */
#endif
#ifndef HEADER_X509_VFY_H
#define HEADER_X509_VFY_H
#ifndef OPENSSL_NO_LHASH
#include <openssl/lhash.h>
#endif
#include <openssl/bio.h>
#include <openssl/crypto.h>
#include <openssl/symhacks.h>
#ifdef __cplusplus
extern "C" {
#endif
/* Outer object */
typedef struct x509_hash_dir_st
{
int num_dirs;
char **dirs;
int *dirs_type;
int num_dirs_alloced;
} X509_HASH_DIR_CTX;
typedef struct x509_file_st
{
int num_paths; /* number of paths to files or directories */
int num_alloced;
char **paths; /* the list of paths or directories */
int *path_type;
} X509_CERT_FILE_CTX;
/*******************************/
/*
SSL_CTX -> X509_STORE
-> X509_LOOKUP
->X509_LOOKUP_METHOD
-> X509_LOOKUP
->X509_LOOKUP_METHOD
SSL -> X509_STORE_CTX
->X509_STORE
The X509_STORE holds the tables etc for verification stuff.
A X509_STORE_CTX is used while validating a single certificate.
The X509_STORE has X509_LOOKUPs for looking up certs.
The X509_STORE then calls a function to actually verify the
certificate chain.
*/
#define X509_LU_RETRY -1
#define X509_LU_FAIL 0
#define X509_LU_X509 1
#define X509_LU_CRL 2
#define X509_LU_PKEY 3
typedef struct x509_object_st
{
/* one of the above types */
int type;
union {
char *ptr;
X509 *x509;
X509_CRL *crl;
EVP_PKEY *pkey;
} data;
} X509_OBJECT;
typedef struct x509_lookup_st X509_LOOKUP;
DECLARE_STACK_OF(X509_LOOKUP)
DECLARE_STACK_OF(X509_OBJECT)
/* This is a static that defines the function interface */
typedef 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);
} X509_LOOKUP_METHOD;
/* 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;
/* The following fields are not used by X509_STORE but are
* inherited by X509_STORE_CTX when it is initialised.
*/
unsigned long flags; /* Various verify flags */
int purpose;
int trust;
/* Callbacks for various operations */
int (*verify)(X509_STORE_CTX *ctx); /* called to verify a certificate */
int (*verify_cb)(int ok,X509_STORE_CTX *ctx); /* error callback */
int (*get_issuer)(X509 **issuer, X509_STORE_CTX *ctx, X509 *x); /* get issuers cert from ctx */
int (*check_issued)(X509_STORE_CTX *ctx, X509 *x, X509 *issuer); /* check issued */
int (*check_revocation)(X509_STORE_CTX *ctx); /* Check revocation status of chain */
int (*get_crl)(X509_STORE_CTX *ctx, X509_CRL **crl, X509 *x); /* retrieve CRL */
int (*check_crl)(X509_STORE_CTX *ctx, X509_CRL *crl); /* Check CRL validity */
int (*cert_crl)(X509_STORE_CTX *ctx, X509_CRL *crl, X509 *x); /* Check certificate against CRL */
int (*cleanup)(X509_STORE_CTX *ctx);
CRYPTO_EX_DATA ex_data;
int references;
int depth; /* how deep to look (still unused -- X509_STORE_CTX's depth is used) */
} /* X509_STORE */;
#define X509_STORE_set_depth(ctx,d) ((ctx)->depth=(d))
#define X509_STORE_set_verify_cb_func(ctx,func) ((ctx)->verify_cb=(func))
#define X509_STORE_set_verify_func(ctx,func) ((ctx)->verify=(func))
/* 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 */
} /* X509_LOOKUP */;
/* This is a used when verifying cert chains. Since the
* gathering of the cert chain can take some time (and have to be
* 'retried', this needs to be kept and passed around. */
struct x509_store_ctx_st /* X509_STORE_CTX */
{
X509_STORE *ctx;
int current_method; /* used when looking up certs */
/* The following are set by the caller */
X509 *cert; /* The cert to check */
STACK_OF(X509) *untrusted; /* chain of X509s - untrusted - passed in */
int purpose; /* purpose to check untrusted certificates */
int trust; /* trust setting to check */
time_t check_time; /* time to make verify at */
unsigned long flags; /* Various verify flags */
void *other_ctx; /* Other info for use with get_issuer() */
/* Callbacks for various operations */
int (*verify)(X509_STORE_CTX *ctx); /* called to verify a certificate */
int (*verify_cb)(int ok,X509_STORE_CTX *ctx); /* error callback */
int (*get_issuer)(X509 **issuer, X509_STORE_CTX *ctx, X509 *x); /* get issuers cert from ctx */
int (*check_issued)(X509_STORE_CTX *ctx, X509 *x, X509 *issuer); /* check issued */
int (*check_revocation)(X509_STORE_CTX *ctx); /* Check revocation status of chain */
int (*get_crl)(X509_STORE_CTX *ctx, X509_CRL **crl, X509 *x); /* retrieve CRL */
int (*check_crl)(X509_STORE_CTX *ctx, X509_CRL *crl); /* Check CRL validity */
int (*cert_crl)(X509_STORE_CTX *ctx, X509_CRL *crl, X509 *x); /* Check certificate against CRL */
int (*cleanup)(X509_STORE_CTX *ctx);
/* The following is built up */
int depth; /* how far to go looking up certs */
int valid; /* if 0, rebuild chain */
int last_untrusted; /* index of last untrusted cert */
STACK_OF(X509) *chain; /* chain of X509s - built up and trusted */
/* When something goes wrong, this is why */
int error_depth;
int error;
X509 *current_cert;
X509 *current_issuer; /* cert currently being tested as valid issuer */
X509_CRL *current_crl; /* current CRL */
CRYPTO_EX_DATA ex_data;
} /* X509_STORE_CTX */;
#define X509_STORE_CTX_set_depth(ctx,d) ((ctx)->depth=(d))
#define X509_STORE_CTX_set_app_data(ctx,data) \
X509_STORE_CTX_set_ex_data(ctx,0,data)
#define X509_STORE_CTX_get_app_data(ctx) \
X509_STORE_CTX_get_ex_data(ctx,0)
#define X509_L_FILE_LOAD 1
#define X509_L_ADD_DIR 2
#define X509_LOOKUP_load_file(x,name,type) \
X509_LOOKUP_ctrl((x),X509_L_FILE_LOAD,(name),(long)(type),NULL)
#define X509_LOOKUP_add_dir(x,name,type) \
X509_LOOKUP_ctrl((x),X509_L_ADD_DIR,(name),(long)(type),NULL)
#define X509_V_OK 0
/* illegal error (for uninitialized values, to avoid X509_V_OK): 1 */
#define X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT 2
#define X509_V_ERR_UNABLE_TO_GET_CRL 3
#define X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE 4
#define X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE 5
#define X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY 6
#define X509_V_ERR_CERT_SIGNATURE_FAILURE 7
#define X509_V_ERR_CRL_SIGNATURE_FAILURE 8
#define X509_V_ERR_CERT_NOT_YET_VALID 9
#define X509_V_ERR_CERT_HAS_EXPIRED 10
#define X509_V_ERR_CRL_NOT_YET_VALID 11
#define X509_V_ERR_CRL_HAS_EXPIRED 12
#define X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD 13
#define X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD 14
#define X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD 15
#define X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD 16
#define X509_V_ERR_OUT_OF_MEM 17
#define X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT 18
#define X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN 19
#define X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY 20
#define X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE 21
#define X509_V_ERR_CERT_CHAIN_TOO_LONG 22
#define X509_V_ERR_CERT_REVOKED 23
#define X509_V_ERR_INVALID_CA 24
#define X509_V_ERR_PATH_LENGTH_EXCEEDED 25
#define X509_V_ERR_INVALID_PURPOSE 26
#define X509_V_ERR_CERT_UNTRUSTED 27
#define X509_V_ERR_CERT_REJECTED 28
/* These are 'informational' when looking for issuer cert */
#define X509_V_ERR_SUBJECT_ISSUER_MISMATCH 29
#define X509_V_ERR_AKID_SKID_MISMATCH 30
#define X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH 31
#define X509_V_ERR_KEYUSAGE_NO_CERTSIGN 32
#define X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER 33
#define X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION 34
#define X509_V_ERR_KEYUSAGE_NO_CRL_SIGN 35
#define X509_V_ERR_UNHANDLED_CRITICAL_CRL_EXTENSION 36
#define X509_V_ERR_INVALID_NON_CA 37
/* The application is not happy */
#define X509_V_ERR_APPLICATION_VERIFICATION 50
/* Certificate verify flags */
/* Send issuer+subject checks to verify_cb */
#define X509_V_FLAG_CB_ISSUER_CHECK 0x1
/* Use check time instead of current time */
#define X509_V_FLAG_USE_CHECK_TIME 0x2
/* Lookup CRLs */
#define X509_V_FLAG_CRL_CHECK 0x4
/* Lookup CRLs for whole chain */
#define X509_V_FLAG_CRL_CHECK_ALL 0x8
/* Ignore unhandled critical extensions */
#define X509_V_FLAG_IGNORE_CRITICAL 0x10
/* Disable workarounds for broken certificates */
#define X509_V_FLAG_X509_STRICT 0x20
int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, int type,
X509_NAME *name);
X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h,int type,X509_NAME *name);
X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h, X509_OBJECT *x);
void X509_OBJECT_up_ref_count(X509_OBJECT *a);
void X509_OBJECT_free_contents(X509_OBJECT *a);
X509_STORE *X509_STORE_new(void );
void X509_STORE_free(X509_STORE *v);
void X509_STORE_set_flags(X509_STORE *ctx, long flags);
int X509_STORE_set_purpose(X509_STORE *ctx, int purpose);
int X509_STORE_set_trust(X509_STORE *ctx, int trust);
X509_STORE_CTX *X509_STORE_CTX_new(void);
int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x);
void X509_STORE_CTX_free(X509_STORE_CTX *ctx);
int X509_STORE_CTX_init(X509_STORE_CTX *ctx, X509_STORE *store,
X509 *x509, STACK_OF(X509) *chain);
void X509_STORE_CTX_trusted_stack(X509_STORE_CTX *ctx, STACK_OF(X509) *sk);
void X509_STORE_CTX_cleanup(X509_STORE_CTX *ctx);
X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m);
X509_LOOKUP_METHOD *X509_LOOKUP_hash_dir(void);
X509_LOOKUP_METHOD *X509_LOOKUP_file(void);
int X509_STORE_add_cert(X509_STORE *ctx, X509 *x);
int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x);
int X509_STORE_get_by_subject(X509_STORE_CTX *vs,int type,X509_NAME *name,
X509_OBJECT *ret);
int X509_LOOKUP_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc,
long argl, char **ret);
#ifndef OPENSSL_NO_STDIO
int X509_load_cert_file(X509_LOOKUP *ctx, const char *file, int type);
int X509_load_crl_file(X509_LOOKUP *ctx, const char *file, int type);
int X509_load_cert_crl_file(X509_LOOKUP *ctx, const char *file, int type);
#endif
X509_LOOKUP *X509_LOOKUP_new(X509_LOOKUP_METHOD *method);
void X509_LOOKUP_free(X509_LOOKUP *ctx);
int X509_LOOKUP_init(X509_LOOKUP *ctx);
int X509_LOOKUP_by_subject(X509_LOOKUP *ctx, int type, X509_NAME *name,
X509_OBJECT *ret);
int X509_LOOKUP_by_issuer_serial(X509_LOOKUP *ctx, int type, X509_NAME *name,
ASN1_INTEGER *serial, X509_OBJECT *ret);
int X509_LOOKUP_by_fingerprint(X509_LOOKUP *ctx, int type,
unsigned char *bytes, int len, X509_OBJECT *ret);
int X509_LOOKUP_by_alias(X509_LOOKUP *ctx, int type, char *str,
int len, X509_OBJECT *ret);
int X509_LOOKUP_shutdown(X509_LOOKUP *ctx);
#ifndef OPENSSL_NO_STDIO
int X509_STORE_load_locations (X509_STORE *ctx,
const char *file, const char *dir);
int X509_STORE_set_default_paths(X509_STORE *ctx);
#endif
int X509_STORE_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
int X509_STORE_CTX_set_ex_data(X509_STORE_CTX *ctx,int idx,void *data);
void * X509_STORE_CTX_get_ex_data(X509_STORE_CTX *ctx,int idx);
int X509_STORE_CTX_get_error(X509_STORE_CTX *ctx);
void X509_STORE_CTX_set_error(X509_STORE_CTX *ctx,int s);
int X509_STORE_CTX_get_error_depth(X509_STORE_CTX *ctx);
X509 * X509_STORE_CTX_get_current_cert(X509_STORE_CTX *ctx);
STACK_OF(X509) *X509_STORE_CTX_get_chain(X509_STORE_CTX *ctx);
STACK_OF(X509) *X509_STORE_CTX_get1_chain(X509_STORE_CTX *ctx);
void X509_STORE_CTX_set_cert(X509_STORE_CTX *c,X509 *x);
void X509_STORE_CTX_set_chain(X509_STORE_CTX *c,STACK_OF(X509) *sk);
int X509_STORE_CTX_set_purpose(X509_STORE_CTX *ctx, int purpose);
int X509_STORE_CTX_set_trust(X509_STORE_CTX *ctx, int trust);
int X509_STORE_CTX_purpose_inherit(X509_STORE_CTX *ctx, int def_purpose,
int purpose, int trust);
void X509_STORE_CTX_set_flags(X509_STORE_CTX *ctx, long flags);
void X509_STORE_CTX_set_time(X509_STORE_CTX *ctx, long flags, time_t t);
void X509_STORE_CTX_set_verify_cb(X509_STORE_CTX *ctx,
int (*verify_cb)(int, X509_STORE_CTX *));
#ifdef __cplusplus
}
#endif
#endif
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