| /* 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 OPENSSL_HEADER_OBJ_H |
| #define OPENSSL_HEADER_OBJ_H |
| |
| #include <openssl/base.h> |
| |
| #include <openssl/bytestring.h> |
| #include <openssl/nid.h> |
| |
| #if defined(__cplusplus) |
| extern "C" { |
| #endif |
| |
| |
| /* The objects library deals with the registration and indexing of ASN.1 object |
| * identifiers. These values are often written as a dotted sequence of numbers, |
| * e.g. 1.2.840.113549.1.9.16.3.9. |
| * |
| * Internally, OpenSSL likes to deal with these values by numbering them with |
| * numbers called "nids". OpenSSL has a large, built-in database of common |
| * object identifiers and also has both short and long names for them. |
| * |
| * This library provides functions for translating between object identifiers, |
| * nids, short names and long names. |
| * |
| * The nid values should not be used outside of a single process: they are not |
| * stable identifiers. */ |
| |
| |
| /* Basic operations. */ |
| |
| /* OBJ_dup returns a duplicate copy of |obj| or NULL on allocation failure. */ |
| OPENSSL_EXPORT ASN1_OBJECT *OBJ_dup(const ASN1_OBJECT *obj); |
| |
| /* OBJ_cmp returns a value less than, equal to or greater than zero if |a| is |
| * less than, equal to or greater than |b|, respectively. */ |
| OPENSSL_EXPORT int OBJ_cmp(const ASN1_OBJECT *a, const ASN1_OBJECT *b); |
| |
| |
| /* Looking up nids. */ |
| |
| /* OBJ_obj2nid returns the nid corresponding to |obj|, or |NID_undef| if no |
| * such object is known. */ |
| OPENSSL_EXPORT int OBJ_obj2nid(const ASN1_OBJECT *obj); |
| |
| /* OBJ_cbs2nid returns the nid corresponding to the DER data in |cbs|, or |
| * |NID_undef| if no such object is known. */ |
| OPENSSL_EXPORT int OBJ_cbs2nid(const CBS *cbs); |
| |
| /* OBJ_sn2nid returns the nid corresponding to |short_name|, or |NID_undef| if |
| * no such short name is known. */ |
| OPENSSL_EXPORT int OBJ_sn2nid(const char *short_name); |
| |
| /* OBJ_ln2nid returns the nid corresponding to |long_name|, or |NID_undef| if |
| * no such long name is known. */ |
| OPENSSL_EXPORT int OBJ_ln2nid(const char *long_name); |
| |
| /* OBJ_txt2nid returns the nid corresponding to |s|, which may be a short name, |
| * long name, or an ASCII string containing a dotted sequence of numbers. It |
| * returns the nid or NID_undef if unknown. */ |
| OPENSSL_EXPORT int OBJ_txt2nid(const char *s); |
| |
| |
| /* Getting information about nids. */ |
| |
| /* OBJ_nid2obj returns the ASN1_OBJECT corresponding to |nid|, or NULL if |nid| |
| * is unknown. */ |
| OPENSSL_EXPORT const ASN1_OBJECT *OBJ_nid2obj(int nid); |
| |
| /* OBJ_nid2sn returns the short name for |nid|, or NULL if |nid| is unknown. */ |
| OPENSSL_EXPORT const char *OBJ_nid2sn(int nid); |
| |
| /* OBJ_nid2ln returns the long name for |nid|, or NULL if |nid| is unknown. */ |
| OPENSSL_EXPORT const char *OBJ_nid2ln(int nid); |
| |
| /* OBJ_nid2cbb writes |nid| as an ASN.1 OBJECT IDENTIFIER to |out|. It returns |
| * one on success or zero otherwise. */ |
| OPENSSL_EXPORT int OBJ_nid2cbb(CBB *out, int nid); |
| |
| |
| /* Dealing with textual representations of object identifiers. */ |
| |
| /* OBJ_txt2obj returns an ASN1_OBJECT for the textual representation in |s|. |
| * If |dont_search_names| is zero, then |s| will be matched against the long |
| * and short names of a known objects to find a match. Otherwise |s| must |
| * contain an ASCII string with a dotted sequence of numbers. The resulting |
| * object need not be previously known. It returns a freshly allocated |
| * |ASN1_OBJECT| or NULL on error. */ |
| OPENSSL_EXPORT ASN1_OBJECT *OBJ_txt2obj(const char *s, int dont_search_names); |
| |
| /* OBJ_obj2txt converts |obj| to a textual representation. If |
| * |always_return_oid| is zero then |obj| will be matched against known objects |
| * and the long (preferably) or short name will be used if found. Otherwise |
| * |obj| will be converted into a dotted sequence of integers. If |out| is not |
| * NULL, then at most |out_len| bytes of the textual form will be written |
| * there. If |out_len| is at least one, then string written to |out| will |
| * always be NUL terminated. It returns the number of characters that could |
| * have been written, not including the final NUL, or -1 on error. */ |
| OPENSSL_EXPORT int OBJ_obj2txt(char *out, int out_len, const ASN1_OBJECT *obj, |
| int always_return_oid); |
| |
| |
| /* Adding objects at runtime. */ |
| |
| /* OBJ_create adds a known object and returns the nid of the new object, or |
| * NID_undef on error. */ |
| OPENSSL_EXPORT int OBJ_create(const char *oid, const char *short_name, |
| const char *long_name); |
| |
| |
| /* Handling signature algorithm identifiers. |
| * |
| * Some NIDs (e.g. sha256WithRSAEncryption) specify both a digest algorithm and |
| * a public key algorithm. The following functions map between pairs of digest |
| * and public-key algorithms and the NIDs that specify their combination. |
| * |
| * Sometimes the combination NID leaves the digest unspecified (e.g. |
| * rsassaPss). In these cases, the digest NID is |NID_undef|. */ |
| |
| /* OBJ_find_sigid_algs finds the digest and public-key NIDs that correspond to |
| * the signing algorithm |sign_nid|. If successful, it sets |*out_digest_nid| |
| * and |*out_pkey_nid| and returns one. Otherwise it returns zero. Any of |
| * |out_digest_nid| or |out_pkey_nid| can be NULL if the caller doesn't need |
| * that output value. */ |
| OPENSSL_EXPORT int OBJ_find_sigid_algs(int sign_nid, int *out_digest_nid, |
| int *out_pkey_nid); |
| |
| /* OBJ_find_sigid_by_algs finds the signature NID that corresponds to the |
| * combination of |digest_nid| and |pkey_nid|. If success, it sets |
| * |*out_sign_nid| and returns one. Otherwise it returns zero. The |
| * |out_sign_nid| argument can be NULL if the caller only wishes to learn |
| * whether the combination is valid. */ |
| OPENSSL_EXPORT int OBJ_find_sigid_by_algs(int *out_sign_nid, int digest_nid, |
| int pkey_nid); |
| |
| |
| /* Deprecated functions. */ |
| |
| typedef struct obj_name_st { |
| int type; |
| int alias; |
| const char *name; |
| const char *data; |
| } OBJ_NAME; |
| |
| #define OBJ_NAME_TYPE_MD_METH 1 |
| #define OBJ_NAME_TYPE_CIPHER_METH 2 |
| |
| /* OBJ_NAME_do_all_sorted calls |callback| zero or more times, each time with |
| * the name of a different primitive. If |type| is |OBJ_NAME_TYPE_MD_METH| then |
| * the primitives will be hash functions, alternatively if |type| is |
| * |OBJ_NAME_TYPE_CIPHER_METH| then the primitives will be ciphers or cipher |
| * modes. |
| * |
| * This function is ill-specified and should never be used. */ |
| OPENSSL_EXPORT void OBJ_NAME_do_all_sorted( |
| int type, void (*callback)(const OBJ_NAME *, void *arg), void *arg); |
| |
| /* OBJ_NAME_do_all calls |OBJ_NAME_do_all_sorted|. */ |
| OPENSSL_EXPORT void OBJ_NAME_do_all(int type, void (*callback)(const OBJ_NAME *, |
| void *arg), |
| void *arg); |
| |
| |
| #if defined(__cplusplus) |
| } /* extern C */ |
| #endif |
| |
| #define OBJ_R_UNKNOWN_NID 100 |
| |
| #endif /* OPENSSL_HEADER_OBJ_H */ |
