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Diffstat (limited to 'contrib/bind9/lib/dns/hmac_link.c')
-rw-r--r--contrib/bind9/lib/dns/hmac_link.c282
1 files changed, 0 insertions, 282 deletions
diff --git a/contrib/bind9/lib/dns/hmac_link.c b/contrib/bind9/lib/dns/hmac_link.c
deleted file mode 100644
index 762fceecb42ff..0000000000000
--- a/contrib/bind9/lib/dns/hmac_link.c
+++ /dev/null
@@ -1,282 +0,0 @@
-/*
- * Portions Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
- * Portions Copyright (C) 1999-2002 Internet Software Consortium.
- * Portions Copyright (C) 1995-2000 by Network Associates, Inc.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND ISC AND NETWORK ASSOCIATES DISCLAIMS
- * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE
- * FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
- * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-/*
- * Principal Author: Brian Wellington
- * $Id: hmac_link.c,v 1.1.4.1 2004/12/09 04:07:17 marka Exp $
- */
-
-#include <config.h>
-
-#include <isc/buffer.h>
-#include <isc/hmacmd5.h>
-#include <isc/md5.h>
-#include <isc/mem.h>
-#include <isc/string.h>
-#include <isc/util.h>
-
-#include <dst/result.h>
-
-#include "dst_internal.h"
-#include "dst_parse.h"
-
-#define HMAC_LEN 64
-#define HMAC_IPAD 0x36
-#define HMAC_OPAD 0x5c
-
-static isc_result_t hmacmd5_fromdns(dst_key_t *key, isc_buffer_t *data);
-
-typedef struct hmackey {
- unsigned char key[HMAC_LEN];
-} HMAC_Key;
-
-static isc_result_t
-hmacmd5_createctx(dst_key_t *key, dst_context_t *dctx) {
- isc_hmacmd5_t *hmacmd5ctx;
- HMAC_Key *hkey = key->opaque;
-
- hmacmd5ctx = isc_mem_get(dctx->mctx, sizeof(isc_hmacmd5_t));
- if (hmacmd5ctx == NULL)
- return (ISC_R_NOMEMORY);
- isc_hmacmd5_init(hmacmd5ctx, hkey->key, HMAC_LEN);
- dctx->opaque = hmacmd5ctx;
- return (ISC_R_SUCCESS);
-}
-
-static void
-hmacmd5_destroyctx(dst_context_t *dctx) {
- isc_hmacmd5_t *hmacmd5ctx = dctx->opaque;
-
- if (hmacmd5ctx != NULL) {
- isc_hmacmd5_invalidate(hmacmd5ctx);
- isc_mem_put(dctx->mctx, hmacmd5ctx, sizeof(isc_hmacmd5_t));
- dctx->opaque = NULL;
- }
-}
-
-static isc_result_t
-hmacmd5_adddata(dst_context_t *dctx, const isc_region_t *data) {
- isc_hmacmd5_t *hmacmd5ctx = dctx->opaque;
-
- isc_hmacmd5_update(hmacmd5ctx, data->base, data->length);
- return (ISC_R_SUCCESS);
-}
-
-static isc_result_t
-hmacmd5_sign(dst_context_t *dctx, isc_buffer_t *sig) {
- isc_hmacmd5_t *hmacmd5ctx = dctx->opaque;
- unsigned char *digest;
-
- if (isc_buffer_availablelength(sig) < ISC_MD5_DIGESTLENGTH)
- return (ISC_R_NOSPACE);
- digest = isc_buffer_used(sig);
- isc_hmacmd5_sign(hmacmd5ctx, digest);
- isc_buffer_add(sig, ISC_MD5_DIGESTLENGTH);
-
- return (ISC_R_SUCCESS);
-}
-
-static isc_result_t
-hmacmd5_verify(dst_context_t *dctx, const isc_region_t *sig) {
- isc_hmacmd5_t *hmacmd5ctx = dctx->opaque;
-
- if (sig->length < ISC_MD5_DIGESTLENGTH)
- return (DST_R_VERIFYFAILURE);
-
- if (isc_hmacmd5_verify(hmacmd5ctx, sig->base))
- return (ISC_R_SUCCESS);
- else
- return (DST_R_VERIFYFAILURE);
-}
-
-static isc_boolean_t
-hmacmd5_compare(const dst_key_t *key1, const dst_key_t *key2) {
- HMAC_Key *hkey1, *hkey2;
-
- hkey1 = (HMAC_Key *)key1->opaque;
- hkey2 = (HMAC_Key *)key2->opaque;
-
- if (hkey1 == NULL && hkey2 == NULL)
- return (ISC_TRUE);
- else if (hkey1 == NULL || hkey2 == NULL)
- return (ISC_FALSE);
-
- if (memcmp(hkey1->key, hkey2->key, HMAC_LEN) == 0)
- return (ISC_TRUE);
- else
- return (ISC_FALSE);
-}
-
-static isc_result_t
-hmacmd5_generate(dst_key_t *key, int pseudorandom_ok) {
- isc_buffer_t b;
- isc_result_t ret;
- int bytes;
- unsigned char data[HMAC_LEN];
-
- bytes = (key->key_size + 7) / 8;
- if (bytes > 64) {
- bytes = 64;
- key->key_size = 512;
- }
-
- memset(data, 0, HMAC_LEN);
- ret = dst__entropy_getdata(data, bytes, ISC_TF(pseudorandom_ok != 0));
-
- if (ret != ISC_R_SUCCESS)
- return (ret);
-
- isc_buffer_init(&b, data, bytes);
- isc_buffer_add(&b, bytes);
- ret = hmacmd5_fromdns(key, &b);
- memset(data, 0, HMAC_LEN);
-
- return (ret);
-}
-
-static isc_boolean_t
-hmacmd5_isprivate(const dst_key_t *key) {
- UNUSED(key);
- return (ISC_TRUE);
-}
-
-static void
-hmacmd5_destroy(dst_key_t *key) {
- HMAC_Key *hkey = key->opaque;
- memset(hkey, 0, sizeof(HMAC_Key));
- isc_mem_put(key->mctx, hkey, sizeof(HMAC_Key));
- key->opaque = NULL;
-}
-
-static isc_result_t
-hmacmd5_todns(const dst_key_t *key, isc_buffer_t *data) {
- HMAC_Key *hkey;
- unsigned int bytes;
-
- REQUIRE(key->opaque != NULL);
-
- hkey = (HMAC_Key *) key->opaque;
-
- bytes = (key->key_size + 7) / 8;
- if (isc_buffer_availablelength(data) < bytes)
- return (ISC_R_NOSPACE);
- isc_buffer_putmem(data, hkey->key, bytes);
-
- return (ISC_R_SUCCESS);
-}
-
-static isc_result_t
-hmacmd5_fromdns(dst_key_t *key, isc_buffer_t *data) {
- HMAC_Key *hkey;
- int keylen;
- isc_region_t r;
- isc_md5_t md5ctx;
-
- isc_buffer_remainingregion(data, &r);
- if (r.length == 0)
- return (ISC_R_SUCCESS);
-
- hkey = (HMAC_Key *) isc_mem_get(key->mctx, sizeof(HMAC_Key));
- if (hkey == NULL)
- return (ISC_R_NOMEMORY);
-
- memset(hkey->key, 0, sizeof(hkey->key));
-
- if (r.length > HMAC_LEN) {
- isc_md5_init(&md5ctx);
- isc_md5_update(&md5ctx, r.base, r.length);
- isc_md5_final(&md5ctx, hkey->key);
- keylen = ISC_MD5_DIGESTLENGTH;
- }
- else {
- memcpy(hkey->key, r.base, r.length);
- keylen = r.length;
- }
-
- key->key_size = keylen * 8;
- key->opaque = hkey;
-
- return (ISC_R_SUCCESS);
-}
-
-static isc_result_t
-hmacmd5_tofile(const dst_key_t *key, const char *directory) {
- int cnt = 0;
- HMAC_Key *hkey;
- dst_private_t priv;
- int bytes = (key->key_size + 7) / 8;
-
- if (key->opaque == NULL)
- return (DST_R_NULLKEY);
-
- hkey = (HMAC_Key *) key->opaque;
-
- priv.elements[cnt].tag = TAG_HMACMD5_KEY;
- priv.elements[cnt].length = bytes;
- priv.elements[cnt++].data = hkey->key;
-
- priv.nelements = cnt;
- return (dst__privstruct_writefile(key, &priv, directory));
-}
-
-static isc_result_t
-hmacmd5_parse(dst_key_t *key, isc_lex_t *lexer) {
- dst_private_t priv;
- isc_result_t ret;
- isc_buffer_t b;
- isc_mem_t *mctx = key->mctx;
-
- /* read private key file */
- ret = dst__privstruct_parse(key, DST_ALG_HMACMD5, lexer, mctx, &priv);
- if (ret != ISC_R_SUCCESS)
- return (ret);
-
- isc_buffer_init(&b, priv.elements[0].data, priv.elements[0].length);
- isc_buffer_add(&b, priv.elements[0].length);
- ret = hmacmd5_fromdns(key, &b);
- dst__privstruct_free(&priv, mctx);
- memset(&priv, 0, sizeof(priv));
- return (ret);
-}
-
-static dst_func_t hmacmd5_functions = {
- hmacmd5_createctx,
- hmacmd5_destroyctx,
- hmacmd5_adddata,
- hmacmd5_sign,
- hmacmd5_verify,
- NULL, /* computesecret */
- hmacmd5_compare,
- NULL, /* paramcompare */
- hmacmd5_generate,
- hmacmd5_isprivate,
- hmacmd5_destroy,
- hmacmd5_todns,
- hmacmd5_fromdns,
- hmacmd5_tofile,
- hmacmd5_parse,
- NULL, /* cleanup */
-};
-
-isc_result_t
-dst__hmacmd5_init(dst_func_t **funcp) {
- REQUIRE(funcp != NULL);
- if (*funcp == NULL)
- *funcp = &hmacmd5_functions;
- return (ISC_R_SUCCESS);
-}
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