e8f783ac0d
This will allow a static linker (with -ffunction-sections since things aren't split into files) to drop unused parts of DH and DSA. Notably, the parameter generation bits pull in primality-checking code. Change-Id: I25087e4cb91bc9d0ab43bcb267c2e2c164e56b59 Reviewed-on: https://boringssl-review.googlesource.com/6388 Reviewed-by: Adam Langley <agl@google.com>
97 lines
2.9 KiB
C
97 lines
2.9 KiB
C
/* Copyright (c) 2014, Google Inc.
|
|
*
|
|
* Permission to use, copy, modify, and/or 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 THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR 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. */
|
|
|
|
#include <openssl/engine.h>
|
|
|
|
#include <string.h>
|
|
#include <assert.h>
|
|
|
|
#include <openssl/ec_key.h>
|
|
#include <openssl/err.h>
|
|
#include <openssl/mem.h>
|
|
#include <openssl/rsa.h>
|
|
#include <openssl/thread.h>
|
|
|
|
|
|
struct engine_st {
|
|
RSA_METHOD *rsa_method;
|
|
ECDSA_METHOD *ecdsa_method;
|
|
};
|
|
|
|
ENGINE *ENGINE_new(void) {
|
|
ENGINE *engine = OPENSSL_malloc(sizeof(ENGINE));
|
|
if (engine == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
memset(engine, 0, sizeof(ENGINE));
|
|
return engine;
|
|
}
|
|
|
|
void ENGINE_free(ENGINE *engine) {
|
|
/* Methods are currently required to be static so are not unref'ed. */
|
|
OPENSSL_free(engine);
|
|
}
|
|
|
|
/* set_method takes a pointer to a method and its given size and sets
|
|
* |*out_member| to point to it. This function might want to be extended in the
|
|
* future to support making a copy of the method so that a stable ABI for
|
|
* ENGINEs can be supported. But, for the moment, all *_METHODS must be
|
|
* static. */
|
|
static int set_method(void **out_member, const void *method, size_t method_size,
|
|
size_t compiled_size) {
|
|
const struct openssl_method_common_st *common = method;
|
|
if (method_size != compiled_size || !common->is_static) {
|
|
return 0;
|
|
}
|
|
|
|
*out_member = (void*) method;
|
|
return 1;
|
|
}
|
|
|
|
int ENGINE_set_RSA_method(ENGINE *engine, const RSA_METHOD *method,
|
|
size_t method_size) {
|
|
return set_method((void **)&engine->rsa_method, method, method_size,
|
|
sizeof(RSA_METHOD));
|
|
}
|
|
|
|
RSA_METHOD *ENGINE_get_RSA_method(const ENGINE *engine) {
|
|
return engine->rsa_method;
|
|
}
|
|
|
|
int ENGINE_set_ECDSA_method(ENGINE *engine, const ECDSA_METHOD *method,
|
|
size_t method_size) {
|
|
return set_method((void **)&engine->ecdsa_method, method, method_size,
|
|
sizeof(ECDSA_METHOD));
|
|
}
|
|
|
|
ECDSA_METHOD *ENGINE_get_ECDSA_method(const ENGINE *engine) {
|
|
return engine->ecdsa_method;
|
|
}
|
|
|
|
void METHOD_ref(void *method_in) {
|
|
assert(((struct openssl_method_common_st*) method_in)->is_static);
|
|
}
|
|
|
|
void METHOD_unref(void *method_in) {
|
|
struct openssl_method_common_st *method = method_in;
|
|
|
|
if (method == NULL) {
|
|
return;
|
|
}
|
|
assert(method->is_static);
|
|
}
|
|
|
|
OPENSSL_DECLARE_ERROR_REASON(ENGINE, OPERATION_NOT_SUPPORTED);
|