openssl/crypto/evp/names.c
2010-03-06 20:47:30 +00:00

202 lines
6.5 KiB
C

/* crypto/evp/names.c */
/* 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.]
*/
#include <stdio.h>
#include "cryptlib.h"
#include <openssl/evp.h>
#include <openssl/objects.h>
#include <openssl/x509.h>
int EVP_add_cipher(const EVP_CIPHER *c)
{
int r;
r=OBJ_NAME_add(OBJ_nid2sn(c->nid),OBJ_NAME_TYPE_CIPHER_METH,(const char *)c);
if (r == 0) return(0);
check_defer(c->nid);
r=OBJ_NAME_add(OBJ_nid2ln(c->nid),OBJ_NAME_TYPE_CIPHER_METH,(const char *)c);
return(r);
}
int EVP_add_digest(const EVP_MD *md)
{
int r;
const char *name;
name=OBJ_nid2sn(md->type);
r=OBJ_NAME_add(name,OBJ_NAME_TYPE_MD_METH,(const char *)md);
if (r == 0) return(0);
check_defer(md->type);
r=OBJ_NAME_add(OBJ_nid2ln(md->type),OBJ_NAME_TYPE_MD_METH,(const char *)md);
if (r == 0) return(0);
if (md->pkey_type && md->type != md->pkey_type)
{
r=OBJ_NAME_add(OBJ_nid2sn(md->pkey_type),
OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS,name);
if (r == 0) return(0);
check_defer(md->pkey_type);
r=OBJ_NAME_add(OBJ_nid2ln(md->pkey_type),
OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS,name);
}
return(r);
}
const EVP_CIPHER *EVP_get_cipherbyname(const char *name)
{
const EVP_CIPHER *cp;
cp=(const EVP_CIPHER *)OBJ_NAME_get(name,OBJ_NAME_TYPE_CIPHER_METH);
return(cp);
}
const EVP_MD *EVP_get_digestbyname(const char *name)
{
const EVP_MD *cp;
cp=(const EVP_MD *)OBJ_NAME_get(name,OBJ_NAME_TYPE_MD_METH);
return(cp);
}
void EVP_cleanup(void)
{
OBJ_NAME_cleanup(OBJ_NAME_TYPE_CIPHER_METH);
OBJ_NAME_cleanup(OBJ_NAME_TYPE_MD_METH);
/* The above calls will only clean out the contents of the name
hash table, but not the hash table itself. The following line
does that part. -- Richard Levitte */
OBJ_NAME_cleanup(-1);
EVP_PBE_cleanup();
if (obj_cleanup_defer == 2)
{
obj_cleanup_defer = 0;
OBJ_cleanup();
}
OBJ_sigid_free();
}
struct doall_cipher
{
void *arg;
void (*fn)(const EVP_CIPHER *ciph,
const char *from, const char *to, void *arg);
};
static void do_all_cipher_fn(const OBJ_NAME *nm, void *arg)
{
struct doall_cipher *dc = arg;
if (nm->alias)
dc->fn(NULL, nm->name, nm->data, dc->arg);
else
dc->fn((const EVP_CIPHER *)nm->data, nm->name, NULL, dc->arg);
}
void EVP_CIPHER_do_all(void (*fn)(const EVP_CIPHER *ciph,
const char *from, const char *to, void *x), void *arg)
{
struct doall_cipher dc;
dc.fn = fn;
dc.arg = arg;
OBJ_NAME_do_all(OBJ_NAME_TYPE_CIPHER_METH, do_all_cipher_fn, &dc);
}
void EVP_CIPHER_do_all_sorted(void (*fn)(const EVP_CIPHER *ciph,
const char *from, const char *to, void *x), void *arg)
{
struct doall_cipher dc;
dc.fn = fn;
dc.arg = arg;
OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH, do_all_cipher_fn,&dc);
}
struct doall_md
{
void *arg;
void (*fn)(const EVP_MD *ciph,
const char *from, const char *to, void *arg);
};
static void do_all_md_fn(const OBJ_NAME *nm, void *arg)
{
struct doall_md *dc = arg;
if (nm->alias)
dc->fn(NULL, nm->name, nm->data, dc->arg);
else
dc->fn((const EVP_MD *)nm->data, nm->name, NULL, dc->arg);
}
void EVP_MD_do_all(void (*fn)(const EVP_MD *md,
const char *from, const char *to, void *x), void *arg)
{
struct doall_md dc;
dc.fn = fn;
dc.arg = arg;
OBJ_NAME_do_all(OBJ_NAME_TYPE_MD_METH, do_all_md_fn, &dc);
}
void EVP_MD_do_all_sorted(void (*fn)(const EVP_MD *md,
const char *from, const char *to, void *x), void *arg)
{
struct doall_md dc;
dc.fn = fn;
dc.arg = arg;
OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_MD_METH, do_all_md_fn, &dc);
}