summaryrefslogtreecommitdiff
path: root/thirdparty/openssl/crypto/engine/eng_table.c
diff options
context:
space:
mode:
Diffstat (limited to 'thirdparty/openssl/crypto/engine/eng_table.c')
-rw-r--r--thirdparty/openssl/crypto/engine/eng_table.c358
1 files changed, 0 insertions, 358 deletions
diff --git a/thirdparty/openssl/crypto/engine/eng_table.c b/thirdparty/openssl/crypto/engine/eng_table.c
deleted file mode 100644
index 27d31f70c8..0000000000
--- a/thirdparty/openssl/crypto/engine/eng_table.c
+++ /dev/null
@@ -1,358 +0,0 @@
-/* ====================================================================
- * Copyright (c) 2001 The OpenSSL Project. All rights reserved.
- *
- * 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 above 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 acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * licensing@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED 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 OpenSSL PROJECT OR
- * ITS 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.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- *
- */
-
-#include "cryptlib.h"
-#include <openssl/evp.h>
-#include <openssl/lhash.h>
-#include "eng_int.h"
-
-/* The type of the items in the table */
-typedef struct st_engine_pile {
- /* The 'nid' of this algorithm/mode */
- int nid;
- /* ENGINEs that implement this algorithm/mode. */
- STACK_OF(ENGINE) *sk;
- /* The default ENGINE to perform this algorithm/mode. */
- ENGINE *funct;
- /*
- * Zero if 'sk' is newer than the cached 'funct', non-zero otherwise
- */
- int uptodate;
-} ENGINE_PILE;
-
-DECLARE_LHASH_OF(ENGINE_PILE);
-
-/* The type exposed in eng_int.h */
-struct st_engine_table {
- LHASH_OF(ENGINE_PILE) piles;
-}; /* ENGINE_TABLE */
-
-typedef struct st_engine_pile_doall {
- engine_table_doall_cb *cb;
- void *arg;
-} ENGINE_PILE_DOALL;
-
-/* Global flags (ENGINE_TABLE_FLAG_***). */
-static unsigned int table_flags = 0;
-
-/* API function manipulating 'table_flags' */
-unsigned int ENGINE_get_table_flags(void)
-{
- return table_flags;
-}
-
-void ENGINE_set_table_flags(unsigned int flags)
-{
- table_flags = flags;
-}
-
-/* Internal functions for the "piles" hash table */
-static unsigned long engine_pile_hash(const ENGINE_PILE *c)
-{
- return c->nid;
-}
-
-static int engine_pile_cmp(const ENGINE_PILE *a, const ENGINE_PILE *b)
-{
- return a->nid - b->nid;
-}
-
-static IMPLEMENT_LHASH_HASH_FN(engine_pile, ENGINE_PILE)
-static IMPLEMENT_LHASH_COMP_FN(engine_pile, ENGINE_PILE)
-
-static int int_table_check(ENGINE_TABLE **t, int create)
-{
- LHASH_OF(ENGINE_PILE) *lh;
-
- if (*t)
- return 1;
- if (!create)
- return 0;
- if ((lh = lh_ENGINE_PILE_new()) == NULL)
- return 0;
- *t = (ENGINE_TABLE *)lh;
- return 1;
-}
-
-/*
- * Privately exposed (via eng_int.h) functions for adding and/or removing
- * ENGINEs from the implementation table
- */
-int engine_table_register(ENGINE_TABLE **table, ENGINE_CLEANUP_CB *cleanup,
- ENGINE *e, const int *nids, int num_nids,
- int setdefault)
-{
- int ret = 0, added = 0;
- ENGINE_PILE tmplate, *fnd;
- CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
- if (!(*table))
- added = 1;
- if (!int_table_check(table, 1))
- goto end;
- if (added)
- /* The cleanup callback needs to be added */
- engine_cleanup_add_first(cleanup);
- while (num_nids--) {
- tmplate.nid = *nids;
- fnd = lh_ENGINE_PILE_retrieve(&(*table)->piles, &tmplate);
- if (!fnd) {
- fnd = OPENSSL_malloc(sizeof(ENGINE_PILE));
- if (!fnd)
- goto end;
- fnd->uptodate = 1;
- fnd->nid = *nids;
- fnd->sk = sk_ENGINE_new_null();
- if (!fnd->sk) {
- OPENSSL_free(fnd);
- goto end;
- }
- fnd->funct = NULL;
- (void)lh_ENGINE_PILE_insert(&(*table)->piles, fnd);
- }
- /* A registration shouldn't add duplciate entries */
- (void)sk_ENGINE_delete_ptr(fnd->sk, e);
- /*
- * if 'setdefault', this ENGINE goes to the head of the list
- */
- if (!sk_ENGINE_push(fnd->sk, e))
- goto end;
- /* "touch" this ENGINE_PILE */
- fnd->uptodate = 0;
- if (setdefault) {
- if (!engine_unlocked_init(e)) {
- ENGINEerr(ENGINE_F_ENGINE_TABLE_REGISTER,
- ENGINE_R_INIT_FAILED);
- goto end;
- }
- if (fnd->funct)
- engine_unlocked_finish(fnd->funct, 0);
- fnd->funct = e;
- fnd->uptodate = 1;
- }
- nids++;
- }
- ret = 1;
- end:
- CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
- return ret;
-}
-
-static void int_unregister_cb_doall_arg(ENGINE_PILE *pile, ENGINE *e)
-{
- int n;
- /* Iterate the 'c->sk' stack removing any occurance of 'e' */
- while ((n = sk_ENGINE_find(pile->sk, e)) >= 0) {
- (void)sk_ENGINE_delete(pile->sk, n);
- pile->uptodate = 0;
- }
- if (pile->funct == e) {
- engine_unlocked_finish(e, 0);
- pile->funct = NULL;
- }
-}
-
-static IMPLEMENT_LHASH_DOALL_ARG_FN(int_unregister_cb, ENGINE_PILE, ENGINE)
-
-void engine_table_unregister(ENGINE_TABLE **table, ENGINE *e)
-{
- CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
- if (int_table_check(table, 0))
- lh_ENGINE_PILE_doall_arg(&(*table)->piles,
- LHASH_DOALL_ARG_FN(int_unregister_cb),
- ENGINE, e);
- CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
-}
-
-static void int_cleanup_cb_doall(ENGINE_PILE *p)
-{
- sk_ENGINE_free(p->sk);
- if (p->funct)
- engine_unlocked_finish(p->funct, 0);
- OPENSSL_free(p);
-}
-
-static IMPLEMENT_LHASH_DOALL_FN(int_cleanup_cb, ENGINE_PILE)
-
-void engine_table_cleanup(ENGINE_TABLE **table)
-{
- CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
- if (*table) {
- lh_ENGINE_PILE_doall(&(*table)->piles,
- LHASH_DOALL_FN(int_cleanup_cb));
- lh_ENGINE_PILE_free(&(*table)->piles);
- *table = NULL;
- }
- CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
-}
-
-/* return a functional reference for a given 'nid' */
-#ifndef ENGINE_TABLE_DEBUG
-ENGINE *engine_table_select(ENGINE_TABLE **table, int nid)
-#else
-ENGINE *engine_table_select_tmp(ENGINE_TABLE **table, int nid, const char *f,
- int l)
-#endif
-{
- ENGINE *ret = NULL;
- ENGINE_PILE tmplate, *fnd = NULL;
- int initres, loop = 0;
-
- if (!(*table)) {
-#ifdef ENGINE_TABLE_DEBUG
- fprintf(stderr, "engine_table_dbg: %s:%d, nid=%d, nothing "
- "registered!\n", f, l, nid);
-#endif
- return NULL;
- }
- ERR_set_mark();
- CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
- /*
- * Check again inside the lock otherwise we could race against cleanup
- * operations. But don't worry about a fprintf(stderr).
- */
- if (!int_table_check(table, 0))
- goto end;
- tmplate.nid = nid;
- fnd = lh_ENGINE_PILE_retrieve(&(*table)->piles, &tmplate);
- if (!fnd)
- goto end;
- if (fnd->funct && engine_unlocked_init(fnd->funct)) {
-#ifdef ENGINE_TABLE_DEBUG
- fprintf(stderr, "engine_table_dbg: %s:%d, nid=%d, using "
- "ENGINE '%s' cached\n", f, l, nid, fnd->funct->id);
-#endif
- ret = fnd->funct;
- goto end;
- }
- if (fnd->uptodate) {
- ret = fnd->funct;
- goto end;
- }
- trynext:
- ret = sk_ENGINE_value(fnd->sk, loop++);
- if (!ret) {
-#ifdef ENGINE_TABLE_DEBUG
- fprintf(stderr, "engine_table_dbg: %s:%d, nid=%d, no "
- "registered implementations would initialise\n", f, l, nid);
-#endif
- goto end;
- }
- /* Try to initialise the ENGINE? */
- if ((ret->funct_ref > 0) || !(table_flags & ENGINE_TABLE_FLAG_NOINIT))
- initres = engine_unlocked_init(ret);
- else
- initres = 0;
- if (initres) {
- /* Update 'funct' */
- if ((fnd->funct != ret) && engine_unlocked_init(ret)) {
- /* If there was a previous default we release it. */
- if (fnd->funct)
- engine_unlocked_finish(fnd->funct, 0);
- fnd->funct = ret;
-#ifdef ENGINE_TABLE_DEBUG
- fprintf(stderr, "engine_table_dbg: %s:%d, nid=%d, "
- "setting default to '%s'\n", f, l, nid, ret->id);
-#endif
- }
-#ifdef ENGINE_TABLE_DEBUG
- fprintf(stderr, "engine_table_dbg: %s:%d, nid=%d, using "
- "newly initialised '%s'\n", f, l, nid, ret->id);
-#endif
- goto end;
- }
- goto trynext;
- end:
- /*
- * If it failed, it is unlikely to succeed again until some future
- * registrations have taken place. In all cases, we cache.
- */
- if (fnd)
- fnd->uptodate = 1;
-#ifdef ENGINE_TABLE_DEBUG
- if (ret)
- fprintf(stderr, "engine_table_dbg: %s:%d, nid=%d, caching "
- "ENGINE '%s'\n", f, l, nid, ret->id);
- else
- fprintf(stderr, "engine_table_dbg: %s:%d, nid=%d, caching "
- "'no matching ENGINE'\n", f, l, nid);
-#endif
- CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
- /*
- * Whatever happened, any failed init()s are not failures in this
- * context, so clear our error state.
- */
- ERR_pop_to_mark();
- return ret;
-}
-
-/* Table enumeration */
-
-static void int_cb_doall_arg(ENGINE_PILE *pile, ENGINE_PILE_DOALL *dall)
-{
- dall->cb(pile->nid, pile->sk, pile->funct, dall->arg);
-}
-
-static IMPLEMENT_LHASH_DOALL_ARG_FN(int_cb, ENGINE_PILE, ENGINE_PILE_DOALL)
-
-void engine_table_doall(ENGINE_TABLE *table, engine_table_doall_cb *cb,
- void *arg)
-{
- ENGINE_PILE_DOALL dall;
- dall.cb = cb;
- dall.arg = arg;
- if (table)
- lh_ENGINE_PILE_doall_arg(&table->piles,
- LHASH_DOALL_ARG_FN(int_cb),
- ENGINE_PILE_DOALL, &dall);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-03 11:18:00 +0000