/*
- * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
#include <stdio.h>
#include <stdarg.h>
#include <openssl/crypto.h>
+#include "internal/core.h"
#include "internal/property.h"
+#include "internal/provider.h"
#include "crypto/ctype.h"
#include <openssl/lhash.h>
#include <openssl/rand.h>
DEFINE_STACK_OF(IMPLEMENTATION)
typedef struct {
+ const OSSL_PROVIDER *provider;
const char *query;
METHOD method;
char body[1];
} ALGORITHM;
struct ossl_method_store_st {
- OPENSSL_CTX *ctx;
+ OSSL_LIB_CTX *ctx;
size_t nelem;
SPARSE_ARRAY_OF(ALGORITHM) *algs;
- OSSL_PROPERTY_LIST *global_properties;
int need_flush;
CRYPTO_RWLOCK *lock;
};
DEFINE_SPARSE_ARRAY_OF(ALGORITHM);
+typedef struct ossl_global_properties_st {
+ OSSL_PROPERTY_LIST *list;
+#ifndef FIPS_MODULE
+ unsigned int no_mirrored : 1;
+#endif
+} OSSL_GLOBAL_PROPERTIES;
+
static void ossl_method_cache_flush(OSSL_METHOD_STORE *store, int nid);
-static void ossl_method_cache_flush_all(OSSL_METHOD_STORE *c);
+
+/* Global properties are stored per library context */
+static void ossl_ctx_global_properties_free(void *vglobp)
+{
+ OSSL_GLOBAL_PROPERTIES *globp = vglobp;
+
+ if (globp != NULL) {
+ ossl_property_free(globp->list);
+ OPENSSL_free(globp);
+ }
+}
+
+static void *ossl_ctx_global_properties_new(OSSL_LIB_CTX *ctx)
+{
+ return OPENSSL_zalloc(sizeof(OSSL_GLOBAL_PROPERTIES));
+}
+
+static const OSSL_LIB_CTX_METHOD ossl_ctx_global_properties_method = {
+ OSSL_LIB_CTX_METHOD_DEFAULT_PRIORITY,
+ ossl_ctx_global_properties_new,
+ ossl_ctx_global_properties_free,
+};
+
+OSSL_PROPERTY_LIST **ossl_ctx_global_properties(OSSL_LIB_CTX *libctx,
+ int loadconfig)
+{
+ OSSL_GLOBAL_PROPERTIES *globp;
+
+#ifndef FIPS_MODULE
+ if (loadconfig && !OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CONFIG, NULL))
+ return NULL;
+#endif
+ globp = ossl_lib_ctx_get_data(libctx, OSSL_LIB_CTX_GLOBAL_PROPERTIES,
+ &ossl_ctx_global_properties_method);
+
+ return &globp->list;
+}
+
+#ifndef FIPS_MODULE
+int ossl_global_properties_no_mirrored(OSSL_LIB_CTX *libctx)
+{
+ OSSL_GLOBAL_PROPERTIES *globp
+ = ossl_lib_ctx_get_data(libctx, OSSL_LIB_CTX_GLOBAL_PROPERTIES,
+ &ossl_ctx_global_properties_method);
+
+ return globp->no_mirrored ? 1 : 0;
+}
+
+void ossl_global_properties_stop_mirroring(OSSL_LIB_CTX *libctx)
+{
+ OSSL_GLOBAL_PROPERTIES *globp
+ = ossl_lib_ctx_get_data(libctx, OSSL_LIB_CTX_GLOBAL_PROPERTIES,
+ &ossl_ctx_global_properties_method);
+
+ globp->no_mirrored = 1;
+}
+#endif
static int ossl_method_up_ref(METHOD *method)
{
(*method->free)(method->method);
}
-int ossl_property_read_lock(OSSL_METHOD_STORE *p)
+static __owur int ossl_property_read_lock(OSSL_METHOD_STORE *p)
{
return p != NULL ? CRYPTO_THREAD_read_lock(p->lock) : 0;
}
-int ossl_property_write_lock(OSSL_METHOD_STORE *p)
+static __owur int ossl_property_write_lock(OSSL_METHOD_STORE *p)
{
return p != NULL ? CRYPTO_THREAD_write_lock(p->lock) : 0;
}
-int ossl_property_unlock(OSSL_METHOD_STORE *p)
+static int ossl_property_unlock(OSSL_METHOD_STORE *p)
{
return p != 0 ? CRYPTO_THREAD_unlock(p->lock) : 0;
}
static int query_cmp(const QUERY *a, const QUERY *b)
{
- return strcmp(a->query, b->query);
+ int res = strcmp(a->query, b->query);
+
+ if (res == 0 && a->provider != NULL && b->provider != NULL)
+ res = b->provider > a->provider ? 1
+ : b->provider < a->provider ? -1
+ : 0;
+ return res;
}
static void impl_free(IMPLEMENTATION *impl)
}
/*
- * The OPENSSL_CTX param here allows access to underlying property data needed
+ * The OSSL_LIB_CTX param here allows access to underlying property data needed
* for computation
*/
-OSSL_METHOD_STORE *ossl_method_store_new(OPENSSL_CTX *ctx)
+OSSL_METHOD_STORE *ossl_method_store_new(OSSL_LIB_CTX *ctx)
{
OSSL_METHOD_STORE *res;
if (store != NULL) {
ossl_sa_ALGORITHM_doall(store->algs, &alg_cleanup);
ossl_sa_ALGORITHM_free(store->algs);
- ossl_property_free(store->global_properties);
CRYPTO_THREAD_lock_free(store->lock);
OPENSSL_free(store);
}
if (properties == NULL)
properties = "";
+ if (!ossl_assert(prov != NULL))
+ return 0;
+
/* Create new entry */
impl = OPENSSL_malloc(sizeof(*impl));
if (impl == NULL)
}
impl->provider = prov;
- /*
- * Insert into the hash table if required.
- *
- * A write lock is used unconditionally because we wend our way down to the
- * property string code which isn't locking friendly.
- */
- ossl_property_write_lock(store);
+ /* Insert into the hash table if required */
+ if (!ossl_property_write_lock(store)) {
+ OPENSSL_free(impl);
+ return 0;
+ }
ossl_method_cache_flush(store, nid);
if ((impl->properties = ossl_prop_defn_get(store->ctx, properties)) == NULL) {
impl->properties = ossl_parse_property(store->ctx, properties);
if (nid <= 0 || method == NULL || store == NULL)
return 0;
- ossl_property_write_lock(store);
+ if (!ossl_property_write_lock(store))
+ return 0;
ossl_method_cache_flush(store, nid);
alg = ossl_method_store_retrieve(store, nid);
if (alg == NULL) {
if (impl->method.method == method) {
impl_free(impl);
- sk_IMPLEMENTATION_delete(alg->impls, i);
+ (void)sk_IMPLEMENTATION_delete(alg->impls, i);
ossl_property_unlock(store);
return 1;
}
return 0;
}
-int ossl_method_store_fetch(OSSL_METHOD_STORE *store, int nid,
- const char *prop_query, void **method)
+static void alg_do_one(ALGORITHM *alg, IMPLEMENTATION *impl,
+ void (*fn)(int id, void *method, void *fnarg),
+ void *fnarg)
+{
+ fn(alg->nid, impl->method.method, fnarg);
+}
+
+struct alg_do_each_data_st {
+ void (*fn)(int id, void *method, void *fnarg);
+ void *fnarg;
+};
+
+static void alg_do_each(ossl_uintmax_t idx, ALGORITHM *alg, void *arg)
{
+ struct alg_do_each_data_st *data = arg;
+ int i, end = sk_IMPLEMENTATION_num(alg->impls);
+
+ for (i = 0; i < end; i++) {
+ IMPLEMENTATION *impl = sk_IMPLEMENTATION_value(alg->impls, i);
+
+ alg_do_one(alg, impl, data->fn, data->fnarg);
+ }
+}
+
+void ossl_method_store_do_all(OSSL_METHOD_STORE *store,
+ void (*fn)(int id, void *method, void *fnarg),
+ void *fnarg)
+{
+ struct alg_do_each_data_st data;
+
+ data.fn = fn;
+ data.fnarg = fnarg;
+ if (store != NULL)
+ ossl_sa_ALGORITHM_doall_arg(store->algs, alg_do_each, &data);
+}
+
+int ossl_method_store_fetch(OSSL_METHOD_STORE *store,
+ int nid, const char *prop_query,
+ const OSSL_PROVIDER **prov_rw, void **method)
+{
+ OSSL_PROPERTY_LIST **plp;
ALGORITHM *alg;
- IMPLEMENTATION *impl;
- OSSL_PROPERTY_LIST *pq = NULL, *p2;
- METHOD *best_method = NULL;
+ IMPLEMENTATION *impl, *best_impl = NULL;
+ OSSL_PROPERTY_LIST *pq = NULL, *p2 = NULL;
+ const OSSL_PROVIDER *prov = prov_rw != NULL ? *prov_rw : NULL;
int ret = 0;
int j, best = -1, score, optional;
-#ifndef FIPS_MODE
- OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CONFIG, NULL);
+#ifndef FIPS_MODULE
+ if (!OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CONFIG, NULL))
+ return 0;
#endif
if (nid <= 0 || method == NULL || store == NULL)
return 0;
- /*
- * This only needs to be a read lock, because queries never create property
- * names or value and thus don't modify any of the property string layer.
- */
- ossl_property_read_lock(store);
+ /* This only needs to be a read lock, because the query won't create anything */
+ if (!ossl_property_read_lock(store))
+ return 0;
alg = ossl_method_store_retrieve(store, nid);
if (alg == NULL) {
ossl_property_unlock(store);
return 0;
}
- if (prop_query == NULL) {
- if ((impl = sk_IMPLEMENTATION_value(alg->impls, 0)) != NULL) {
- best_method = &impl->method;
- ret = 1;
+ if (prop_query != NULL)
+ p2 = pq = ossl_parse_query(store->ctx, prop_query, 0);
+ plp = ossl_ctx_global_properties(store->ctx, 0);
+ if (plp != NULL && *plp != NULL) {
+ if (pq == NULL) {
+ pq = *plp;
+ } else {
+ p2 = ossl_property_merge(pq, *plp);
+ ossl_property_free(pq);
+ if (p2 == NULL)
+ goto fin;
+ pq = p2;
}
- goto fin;
}
- pq = ossl_parse_query(store->ctx, prop_query);
- if (pq == NULL)
+
+ if (pq == NULL) {
+ for (j = 0; j < sk_IMPLEMENTATION_num(alg->impls); j++) {
+ if ((impl = sk_IMPLEMENTATION_value(alg->impls, j)) != NULL
+ && (prov == NULL || impl->provider == prov)) {
+ best_impl = impl;
+ ret = 1;
+ break;
+ }
+ }
goto fin;
- if (store->global_properties != NULL) {
- p2 = ossl_property_merge(pq, store->global_properties);
- if (p2 == NULL)
- goto fin;
- ossl_property_free(pq);
- pq = p2;
}
optional = ossl_property_has_optional(pq);
for (j = 0; j < sk_IMPLEMENTATION_num(alg->impls); j++) {
- impl = sk_IMPLEMENTATION_value(alg->impls, j);
- score = ossl_property_match_count(pq, impl->properties);
- if (score > best) {
- best_method = &impl->method;
- best = score;
- ret = 1;
- if (!optional)
- goto fin;
+ if ((impl = sk_IMPLEMENTATION_value(alg->impls, j)) != NULL
+ && (prov == NULL || impl->provider == prov)) {
+ score = ossl_property_match_count(pq, impl->properties);
+ if (score > best) {
+ best_impl = impl;
+ best = score;
+ ret = 1;
+ if (!optional)
+ goto fin;
+ }
}
}
fin:
- if (ret && ossl_method_up_ref(best_method))
- *method = best_method->method;
- else
+ if (ret && ossl_method_up_ref(&best_impl->method)) {
+ *method = best_impl->method.method;
+ if (prov_rw != NULL)
+ *prov_rw = best_impl->provider;
+ } else {
ret = 0;
- ossl_property_unlock(store);
- ossl_property_free(pq);
- return ret;
-}
-
-int ossl_method_store_set_global_properties(OSSL_METHOD_STORE *store,
- const char *prop_query) {
- int ret = 0;
-
- if (store == NULL)
- return 1;
-
- ossl_property_write_lock(store);
- ossl_method_cache_flush_all(store);
- if (prop_query == NULL) {
- ossl_property_free(store->global_properties);
- store->global_properties = NULL;
- ossl_property_unlock(store);
- return 1;
}
- store->global_properties = ossl_parse_query(store->ctx, prop_query);
- ret = store->global_properties != NULL;
ossl_property_unlock(store);
+ ossl_property_free(p2);
return ret;
}
-static void impl_cache_flush_alg(ossl_uintmax_t idx, ALGORITHM *alg)
+static void impl_cache_flush_alg(ossl_uintmax_t idx, ALGORITHM *alg, void *arg)
{
+ SPARSE_ARRAY_OF(ALGORITHM) *algs = arg;
+
lh_QUERY_doall(alg->cache, &impl_cache_free);
- lh_QUERY_flush(alg->cache);
+ if (algs != NULL) {
+ sk_IMPLEMENTATION_pop_free(alg->impls, &impl_free);
+ lh_QUERY_free(alg->cache);
+ OPENSSL_free(alg);
+ ossl_sa_ALGORITHM_set(algs, idx, NULL);
+ } else {
+ lh_QUERY_flush(alg->cache);
+ }
}
static void ossl_method_cache_flush(OSSL_METHOD_STORE *store, int nid)
ALGORITHM *alg = ossl_method_store_retrieve(store, nid);
if (alg != NULL) {
+ ossl_provider_clear_all_operation_bits(store->ctx);
store->nelem -= lh_QUERY_num_items(alg->cache);
- impl_cache_flush_alg(0, alg);
+ impl_cache_flush_alg(0, alg, NULL);
}
}
-static void ossl_method_cache_flush_all(OSSL_METHOD_STORE *store)
+int ossl_method_store_flush_cache(OSSL_METHOD_STORE *store, int all)
{
- ossl_sa_ALGORITHM_doall(store->algs, &impl_cache_flush_alg);
+ void *arg = (all != 0 ? store->algs : NULL);
+
+ if (!ossl_property_write_lock(store))
+ return 0;
+ ossl_provider_clear_all_operation_bits(store->ctx);
+ ossl_sa_ALGORITHM_doall_arg(store->algs, &impl_cache_flush_alg, arg);
store->nelem = 0;
+ ossl_property_unlock(store);
+ return 1;
}
IMPLEMENT_LHASH_DOALL_ARG(QUERY, IMPL_CACHE_FLUSH);
state.nelem = 0;
if ((state.seed = OPENSSL_rdtsc()) == 0)
state.seed = 1;
+ ossl_provider_clear_all_operation_bits(store->ctx);
store->need_flush = 0;
ossl_sa_ALGORITHM_doall_arg(store->algs, &impl_cache_flush_one_alg, &state);
store->nelem = state.nelem;
}
-int ossl_method_store_cache_get(OSSL_METHOD_STORE *store, int nid,
- const char *prop_query, void **method)
+int ossl_method_store_cache_get(OSSL_METHOD_STORE *store, OSSL_PROVIDER *prov,
+ int nid, const char *prop_query, void **method)
{
ALGORITHM *alg;
QUERY elem, *r;
if (nid <= 0 || store == NULL)
return 0;
- ossl_property_read_lock(store);
+ if (!ossl_property_read_lock(store))
+ return 0;
alg = ossl_method_store_retrieve(store, nid);
if (alg == NULL)
goto err;
elem.query = prop_query != NULL ? prop_query : "";
+ elem.provider = prov;
r = lh_QUERY_retrieve(alg->cache, &elem);
if (r == NULL)
goto err;
return res;
}
-int ossl_method_store_cache_set(OSSL_METHOD_STORE *store, int nid,
- const char *prop_query, void *method,
+int ossl_method_store_cache_set(OSSL_METHOD_STORE *store, OSSL_PROVIDER *prov,
+ int nid, const char *prop_query, void *method,
int (*method_up_ref)(void *),
void (*method_destruct)(void *))
{
if (prop_query == NULL)
return 1;
- ossl_property_write_lock(store);
+ if (!ossl_assert(prov != NULL))
+ return 0;
+
+ if (!ossl_property_write_lock(store))
+ return 0;
if (store->need_flush)
ossl_method_cache_flush_some(store);
alg = ossl_method_store_retrieve(store, nid);
if (method == NULL) {
elem.query = prop_query;
+ elem.provider = prov;
if ((old = lh_QUERY_delete(alg->cache, &elem)) != NULL) {
impl_cache_free(old);
store->nelem--;
p = OPENSSL_malloc(sizeof(*p) + (len = strlen(prop_query)));
if (p != NULL) {
p->query = p->body;
+ p->provider = prov;
p->method.method = method;
p->method.up_ref = method_up_ref;
p->method.free = method_destruct;
}
ossl_method_free(&p->method);
}
- OPENSSL_free(p);
err:
res = 0;
+ OPENSSL_free(p);
end:
ossl_property_unlock(store);
return res;
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