/* 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 ends up #include-ing this file at about the only * appropriate moment. */ #endif #ifndef HEADER_X509_VFY_H #define HEADER_X509_VFY_H #ifndef NO_LHASH #include #endif #include #include #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; typedef struct x509_store_ctx_st X509_STORE_CTX; /* 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. */ typedef 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; int (*verify)(X509_STORE_CTX *ctx); /* called to verify a certificate */ int (*verify_cb)(int ok,X509_STORE_CTX *ctx); /* error callback */ 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 */ }; /* 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 (*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 */ CRYPTO_EX_DATA ex_data; }; #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 /* The application is not happy */ #define X509_V_ERR_APPLICATION_VERIFICATION 50 /* Certificate verify flags */ #define X509_V_FLAG_CB_ISSUER_CHECK 0x1 /* Send issuer+subject checks to verify_cb */ #define X509_V_FLAG_USE_CHECK_TIME 0x2 /* Use check time instead of current time */ /* These functions are being redefined in another directory, and clash when the linker is case-insensitive, so let's hide them a little, by giving them an extra 'o' at the beginning of the name... */ #ifdef VMS #undef X509v3_cleanup_extensions #define X509v3_cleanup_extensions oX509v3_cleanup_extensions #undef X509v3_add_extension #define X509v3_add_extension oX509v3_add_extension #undef X509v3_add_netscape_extensions #define X509v3_add_netscape_extensions oX509v3_add_netscape_extensions #undef X509v3_add_standard_extensions #define X509v3_add_standard_extensions oX509v3_add_standard_extensions #endif 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); 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); void 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 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 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