/*
- * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2019 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
#include <openssl/engine.h>
#include <openssl/params.h>
#include <openssl/core_names.h>
-#include "internal/evp_int.h"
+#include "crypto/evp.h"
#include "internal/provider.h"
-#include "evp_locl.h"
+#include "evp_local.h"
int EVP_CIPHER_CTX_reset(EVP_CIPHER_CTX *ctx)
{
ctx->provctx = NULL;
}
if (ctx->fetched_cipher != NULL)
- EVP_CIPHER_meth_free(ctx->fetched_cipher);
+ EVP_CIPHER_free(ctx->fetched_cipher);
memset(ctx, 0, sizeof(*ctx));
return 1;
OPENSSL_cleanse(ctx->cipher_data, ctx->cipher->ctx_size);
}
OPENSSL_free(ctx->cipher_data);
-#ifndef OPENSSL_NO_ENGINE
+#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE)
ENGINE_finish(ctx->engine);
#endif
memset(ctx, 0, sizeof(*ctx));
ENGINE *impl, const unsigned char *key,
const unsigned char *iv, int enc)
{
- EVP_CIPHER *provciph = NULL;
+#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE)
ENGINE *tmpimpl = NULL;
+#endif
const EVP_CIPHER *tmpcipher;
/*
/* TODO(3.0): Legacy work around code below. Remove this */
-#ifndef OPENSSL_NO_ENGINE
+#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE)
/*
* Whether it's nice or not, "Inits" can be used on "Final"'d contexts so
* this context may already have an ENGINE! Try to avoid releasing the
* If there are engines involved then we should use legacy handling for now.
*/
if (ctx->engine != NULL
- || impl != NULL
- || tmpimpl != NULL) {
+#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE)
+ || tmpimpl != NULL
+#endif
+ || impl != NULL) {
if (ctx->cipher == ctx->fetched_cipher)
ctx->cipher = NULL;
- EVP_CIPHER_meth_free(ctx->fetched_cipher);
+ EVP_CIPHER_free(ctx->fetched_cipher);
ctx->fetched_cipher = NULL;
goto legacy;
}
case NID_aes_256_ctr:
case NID_aes_192_ctr:
case NID_aes_128_ctr:
+ case NID_aes_128_xts:
+ case NID_aes_256_xts:
+ case NID_aes_256_ocb:
+ case NID_aes_192_ocb:
+ case NID_aes_128_ocb:
+ case NID_aes_256_gcm:
+ case NID_aes_192_gcm:
+ case NID_aes_128_gcm:
+ case NID_id_aes256_wrap:
+ case NID_id_aes256_wrap_pad:
+ case NID_id_aes192_wrap:
+ case NID_id_aes192_wrap_pad:
+ case NID_id_aes128_wrap:
+ case NID_id_aes128_wrap_pad:
+ case NID_aria_256_gcm:
+ case NID_aria_192_gcm:
+ case NID_aria_128_gcm:
+ case NID_aes_256_ccm:
+ case NID_aes_192_ccm:
+ case NID_aes_128_ccm:
+ case NID_aria_256_ccm:
+ case NID_aria_192_ccm:
+ case NID_aria_128_ccm:
+ case NID_aria_256_ecb:
+ case NID_aria_192_ecb:
+ case NID_aria_128_ecb:
+ case NID_aria_256_cbc:
+ case NID_aria_192_cbc:
+ case NID_aria_128_cbc:
+ case NID_aria_256_ofb128:
+ case NID_aria_192_ofb128:
+ case NID_aria_128_ofb128:
+ case NID_aria_256_cfb128:
+ case NID_aria_192_cfb128:
+ case NID_aria_128_cfb128:
+ case NID_aria_256_cfb1:
+ case NID_aria_192_cfb1:
+ case NID_aria_128_cfb1:
+ case NID_aria_256_cfb8:
+ case NID_aria_192_cfb8:
+ case NID_aria_128_cfb8:
+ case NID_aria_256_ctr:
+ case NID_aria_192_ctr:
+ case NID_aria_128_ctr:
+ case NID_camellia_256_ecb:
+ case NID_camellia_192_ecb:
+ case NID_camellia_128_ecb:
+ case NID_camellia_256_cbc:
+ case NID_camellia_192_cbc:
+ case NID_camellia_128_cbc:
+ case NID_camellia_256_ofb128:
+ case NID_camellia_192_ofb128:
+ case NID_camellia_128_ofb128:
+ case NID_camellia_256_cfb128:
+ case NID_camellia_192_cfb128:
+ case NID_camellia_128_cfb128:
+ case NID_camellia_256_cfb1:
+ case NID_camellia_192_cfb1:
+ case NID_camellia_128_cfb1:
+ case NID_camellia_256_cfb8:
+ case NID_camellia_192_cfb8:
+ case NID_camellia_128_cfb8:
+ case NID_camellia_256_ctr:
+ case NID_camellia_192_ctr:
+ case NID_camellia_128_ctr:
+ case NID_des_ede3_cbc:
+ case NID_des_ede3_ecb:
+ case NID_des_ede3_ofb64:
+ case NID_des_ede3_cfb64:
+ case NID_des_ede3_cfb8:
+ case NID_des_ede3_cfb1:
+ case NID_des_ede_cbc:
+ case NID_des_ede_ecb:
+ case NID_des_ede_ofb64:
+ case NID_des_ede_cfb64:
+ case NID_desx_cbc:
+ case NID_des_cbc:
+ case NID_des_ecb:
+ case NID_des_cfb1:
+ case NID_des_cfb8:
+ case NID_des_cfb64:
+ case NID_des_ofb64:
+ case NID_id_smime_alg_CMS3DESwrap:
+ case NID_bf_cbc:
+ case NID_bf_ecb:
+ case NID_bf_cfb64:
+ case NID_bf_ofb64:
+ case NID_idea_cbc:
+ case NID_idea_ecb:
+ case NID_idea_cfb64:
+ case NID_idea_ofb64:
+ case NID_cast5_cbc:
+ case NID_cast5_ecb:
+ case NID_cast5_cfb64:
+ case NID_cast5_ofb64:
+ case NID_seed_cbc:
+ case NID_seed_ecb:
+ case NID_seed_cfb128:
+ case NID_seed_ofb128:
+ case NID_sm4_cbc:
+ case NID_sm4_ecb:
+ case NID_sm4_ctr:
+ case NID_sm4_cfb128:
+ case NID_sm4_ofb128:
+ case NID_rc4:
+ case NID_rc4_40:
+ case NID_rc5_cbc:
+ case NID_rc5_ecb:
+ case NID_rc5_cfb64:
+ case NID_rc5_ofb64:
+ case NID_rc2_cbc:
+ case NID_rc2_40_cbc:
+ case NID_rc2_64_cbc:
+ case NID_rc2_cfb64:
+ case NID_rc2_ofb64:
+ case NID_chacha20:
+ case NID_chacha20_poly1305:
break;
default:
goto legacy;
ctx->flags = flags;
}
- if (cipher != NULL)
- ctx->cipher = cipher;
- else
+ if (cipher == NULL)
cipher = ctx->cipher;
if (cipher->prov == NULL) {
- provciph = EVP_CIPHER_fetch(NULL, OBJ_nid2sn(cipher->nid), "");
+#ifdef FIPS_MODE
+ /* We only do explict fetches inside the FIPS module */
+ EVPerr(EVP_F_EVP_CIPHERINIT_EX, EVP_R_INITIALIZATION_ERROR);
+ return 0;
+#else
+ EVP_CIPHER *provciph =
+ EVP_CIPHER_fetch(NULL, OBJ_nid2sn(cipher->nid), "");
+
if (provciph == NULL) {
EVPerr(EVP_F_EVP_CIPHERINIT_EX, EVP_R_INITIALIZATION_ERROR);
return 0;
}
cipher = provciph;
- EVP_CIPHER_meth_free(ctx->fetched_cipher);
+ EVP_CIPHER_free(ctx->fetched_cipher);
ctx->fetched_cipher = provciph;
+#endif
}
ctx->cipher = cipher;
return 0;
}
- switch (EVP_CIPHER_mode(ctx->cipher)) {
- case EVP_CIPH_CFB_MODE:
- case EVP_CIPH_OFB_MODE:
- case EVP_CIPH_CBC_MODE:
- /* For these modes we remember the original IV for later use */
- if (!ossl_assert(EVP_CIPHER_CTX_iv_length(ctx) <= (int)sizeof(ctx->oiv))) {
- EVPerr(EVP_F_EVP_CIPHERINIT_EX, EVP_R_INITIALIZATION_ERROR);
- return 0;
- }
- if (iv != NULL)
- memcpy(ctx->oiv, iv, EVP_CIPHER_CTX_iv_length(ctx));
- }
-
if (enc) {
if (ctx->cipher->einit == NULL) {
EVPerr(EVP_F_EVP_CIPHERINIT_EX, EVP_R_INITIALIZATION_ERROR);
ctx->encrypt = enc;
ctx->flags = flags;
}
-#ifndef OPENSSL_NO_ENGINE
+#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE)
if (impl != NULL) {
if (!ENGINE_init(impl)) {
EVPerr(EVP_F_EVP_CIPHERINIT_EX, EVP_R_INITIALIZATION_ERROR);
}
}
}
-#ifndef OPENSSL_NO_ENGINE
+#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE)
skip_to_init:
#endif
+ if (ctx->cipher == NULL)
+ return 0;
+
/* we assume block size is a power of 2 in *cryptUpdate */
OPENSSL_assert(ctx->cipher->block_size == 1
|| ctx->cipher->block_size == 8
bl = ctx->cipher->block_size;
- if (inl <= 0) {
- *outl = 0;
- return inl == 0;
- }
-
if (ctx->cipher->flags & EVP_CIPH_FLAG_CUSTOM_CIPHER) {
/* If block size > 1 then the cipher will have to do this check */
if (bl == 1 && is_partially_overlapping(out, in, cmpl)) {
return 1;
}
+ if (inl <= 0) {
+ *outl = 0;
+ return inl == 0;
+ }
if (is_partially_overlapping(out + ctx->buf_len, in, cmpl)) {
EVPerr(EVP_F_EVP_ENCRYPTDECRYPTUPDATE, EVP_R_PARTIALLY_OVERLAPPING);
return 0;
return 0;
}
- if (ctx->cipher == NULL || ctx->cipher->prov == NULL)
+ if (ctx->cipher == NULL) {
+ EVPerr(EVP_F_EVP_ENCRYPTUPDATE, EVP_R_NO_CIPHER_SET);
+ return 0;
+ }
+
+ if (ctx->cipher->prov == NULL)
goto legacy;
blocksize = EVP_CIPHER_CTX_block_size(ctx);
inl + (blocksize == 1 ? 0 : blocksize), in,
(size_t)inl);
- if (soutl > INT_MAX) {
- EVPerr(EVP_F_EVP_ENCRYPTUPDATE, EVP_R_UPDATE_ERROR);
- return 0;
+ if (ret) {
+ if (soutl > INT_MAX) {
+ EVPerr(EVP_F_EVP_ENCRYPTUPDATE, EVP_R_UPDATE_ERROR);
+ return 0;
+ }
+ *outl = soutl;
}
- *outl = soutl;
+
return ret;
/* TODO(3.0): Remove legacy code below */
ret = ctx->cipher->cfinal(ctx->provctx, out, &soutl,
blocksize == 1 ? 0 : blocksize);
- if (soutl > INT_MAX) {
- EVPerr(EVP_F_EVP_ENCRYPTFINAL_EX, EVP_R_FINAL_ERROR);
- return 0;
+ if (ret) {
+ if (soutl > INT_MAX) {
+ EVPerr(EVP_F_EVP_ENCRYPTFINAL_EX, EVP_R_FINAL_ERROR);
+ return 0;
+ }
+ *outl = soutl;
}
- *outl = soutl;
return ret;
if (EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS))
cmpl = (cmpl + 7) / 8;
- if (inl <= 0) {
- *outl = 0;
- return inl == 0;
- }
-
if (ctx->cipher->flags & EVP_CIPH_FLAG_CUSTOM_CIPHER) {
if (b == 1 && is_partially_overlapping(out, in, cmpl)) {
EVPerr(EVP_F_EVP_DECRYPTUPDATE, EVP_R_PARTIALLY_OVERLAPPING);
return 1;
}
+ if (inl <= 0) {
+ *outl = 0;
+ return inl == 0;
+ }
+
if (ctx->flags & EVP_CIPH_NO_PADDING)
return evp_EncryptDecryptUpdate(ctx, out, outl, in, inl);
return 0;
}
- if (ctx->cipher == NULL || ctx->cipher->prov == NULL)
+ if (ctx->cipher == NULL) {
+ EVPerr(EVP_F_EVP_DECRYPTFINAL_EX, EVP_R_NO_CIPHER_SET);
+ return 0;
+ }
+
+ if (ctx->cipher->prov == NULL)
goto legacy;
blocksize = EVP_CIPHER_CTX_block_size(ctx);
legacy:
*outl = 0;
-
if (ctx->cipher->flags & EVP_CIPH_FLAG_CUSTOM_CIPHER) {
i = ctx->cipher->do_cipher(ctx, out, NULL, 0);
if (i < 0)
int EVP_CIPHER_CTX_set_key_length(EVP_CIPHER_CTX *c, int keylen)
{
+ int ok;
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+ size_t len = keylen;
+
+ params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_KEYLEN, &len);
+ ok = evp_do_ciph_ctx_setparams(c->cipher, c->provctx, params);
+
+ if (ok != EVP_CTRL_RET_UNSUPPORTED)
+ return ok;
+
+ /* TODO(3.0) legacy code follows */
if (c->cipher->flags & EVP_CIPH_CUSTOM_KEY_LENGTH)
return EVP_CIPHER_CTX_ctrl(c, EVP_CTRL_SET_KEY_LENGTH, keylen, NULL);
if (EVP_CIPHER_CTX_key_length(c) == keylen)
int EVP_CIPHER_CTX_set_padding(EVP_CIPHER_CTX *ctx, int pad)
{
+ int ok;
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+ unsigned int pd = pad;
+
if (pad)
ctx->flags &= ~EVP_CIPH_NO_PADDING;
else
ctx->flags |= EVP_CIPH_NO_PADDING;
- if (ctx->cipher != NULL && ctx->cipher->prov != NULL) {
- OSSL_PARAM params[] = {
- OSSL_PARAM_int(OSSL_CIPHER_PARAM_PADDING, NULL),
- OSSL_PARAM_END
- };
-
- params[0].data = &pad;
-
- if (ctx->cipher->ctx_set_params == NULL) {
- EVPerr(EVP_F_EVP_CIPHER_CTX_SET_PADDING, EVP_R_CTRL_NOT_IMPLEMENTED);
- return 0;
- }
-
- if (!ctx->cipher->ctx_set_params(ctx->provctx, params))
- return 0;
- }
+ params[0] = OSSL_PARAM_construct_uint(OSSL_CIPHER_PARAM_PADDING, &pd);
+ ok = evp_do_ciph_ctx_setparams(ctx->cipher, ctx->provctx, params);
- return 1;
+ return ok != 0;
}
int EVP_CIPHER_CTX_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr)
{
- int ret;
+ int ret = EVP_CTRL_RET_UNSUPPORTED;
+ int set_params = 1;
+ size_t sz = arg;
+ unsigned int i;
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
- if (!ctx->cipher) {
+ if (ctx == NULL || ctx->cipher == NULL) {
EVPerr(EVP_F_EVP_CIPHER_CTX_CTRL, EVP_R_NO_CIPHER_SET);
return 0;
}
- if (!ctx->cipher->ctrl) {
+ if (ctx->cipher->prov == NULL)
+ goto legacy;
+
+ switch (type) {
+ case EVP_CTRL_SET_KEY_LENGTH:
+ params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_KEYLEN, &sz);
+ break;
+ case EVP_CTRL_RAND_KEY: /* Used by DES */
+ set_params = 0;
+ params[0] =
+ OSSL_PARAM_construct_octet_string(OSSL_CIPHER_PARAM_RANDOM_KEY,
+ ptr, sz);
+ break;
+
+ case EVP_CTRL_INIT:
+ /*
+ * TODO(3.0) EVP_CTRL_INIT is purely legacy, no provider counterpart
+ * As a matter of fact, this should be dead code, but some caller
+ * might still do a direct control call with this command, so...
+ * Legacy methods return 1 except for exceptional circumstances, so
+ * we do the same here to not be disruptive.
+ */
+ return 1;
+ case EVP_CTRL_SET_PIPELINE_OUTPUT_BUFS: /* Used by DASYNC */
+ default:
+ goto end;
+ case EVP_CTRL_GET_IV:
+ set_params = 0;
+ params[0] = OSSL_PARAM_construct_octet_string(OSSL_CIPHER_PARAM_IV,
+ ptr, sz);
+ break;
+ case EVP_CTRL_AEAD_SET_IVLEN:
+ if (arg < 0)
+ return 0;
+ params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_IVLEN, &sz);
+ break;
+ case EVP_CTRL_GCM_SET_IV_FIXED:
+ params[0] =
+ OSSL_PARAM_construct_octet_string(OSSL_CIPHER_PARAM_AEAD_TLS1_IV_FIXED,
+ ptr, sz);
+ break;
+ case EVP_CTRL_GET_RC5_ROUNDS:
+ set_params = 0; /* Fall thru */
+ case EVP_CTRL_SET_RC5_ROUNDS:
+ if (arg < 0)
+ return 0;
+ i = (unsigned int)arg;
+ params[0] = OSSL_PARAM_construct_uint(OSSL_CIPHER_PARAM_ROUNDS, &i);
+ break;
+ case EVP_CTRL_AEAD_GET_TAG:
+ set_params = 0; /* Fall thru */
+ case EVP_CTRL_AEAD_SET_TAG:
+ params[0] = OSSL_PARAM_construct_octet_string(OSSL_CIPHER_PARAM_AEAD_TAG,
+ ptr, sz);
+ break;
+ case EVP_CTRL_AEAD_SET_MAC_KEY:
+ params[0] =
+ OSSL_PARAM_construct_octet_string(OSSL_CIPHER_PARAM_AEAD_MAC_KEY,
+ ptr, sz);
+ break;
+ case EVP_CTRL_AEAD_TLS1_AAD:
+ /* This one does a set and a get - since it returns a padding size */
+ params[0] =
+ OSSL_PARAM_construct_octet_string(OSSL_CIPHER_PARAM_AEAD_TLS1_AAD,
+ ptr, sz);
+ ret = evp_do_ciph_ctx_setparams(ctx->cipher, ctx->provctx, params);
+ if (ret <= 0)
+ goto end;
+ params[0] =
+ OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_AEAD_TLS1_AAD_PAD, &sz);
+ ret = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
+ if (ret <= 0)
+ goto end;
+ return sz;
+#ifndef OPENSSL_NO_RC2
+ case EVP_CTRL_GET_RC2_KEY_BITS:
+ set_params = 0; /* Fall thru */
+ case EVP_CTRL_SET_RC2_KEY_BITS:
+ params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_RC2_KEYBITS, &sz);
+ break;
+#endif /* OPENSSL_NO_RC2 */
+ }
+
+ if (set_params)
+ ret = evp_do_ciph_ctx_setparams(ctx->cipher, ctx->provctx, params);
+ else
+ ret = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
+ goto end;
+
+/* TODO(3.0): Remove legacy code below */
+legacy:
+ if (ctx->cipher->ctrl == NULL) {
EVPerr(EVP_F_EVP_CIPHER_CTX_CTRL, EVP_R_CTRL_NOT_IMPLEMENTED);
return 0;
}
ret = ctx->cipher->ctrl(ctx, type, arg, ptr);
- if (ret == -1) {
+
+ end:
+ if (ret == EVP_CTRL_RET_UNSUPPORTED) {
EVPerr(EVP_F_EVP_CIPHER_CTX_CTRL,
EVP_R_CTRL_OPERATION_NOT_IMPLEMENTED);
return 0;
return ret;
}
+int EVP_CIPHER_get_params(EVP_CIPHER *cipher, OSSL_PARAM params[])
+{
+ if (cipher != NULL && cipher->get_params != NULL)
+ return cipher->get_params(params);
+ return 0;
+}
+
+int EVP_CIPHER_CTX_set_params(EVP_CIPHER_CTX *ctx, const OSSL_PARAM params[])
+{
+ if (ctx->cipher != NULL && ctx->cipher->set_ctx_params != NULL)
+ return ctx->cipher->set_ctx_params(ctx->provctx, params);
+ return 0;
+}
+
+int EVP_CIPHER_CTX_get_params(EVP_CIPHER_CTX *ctx, OSSL_PARAM params[])
+{
+ if (ctx->cipher != NULL && ctx->cipher->get_ctx_params != NULL)
+ return ctx->cipher->get_ctx_params(ctx->provctx, params);
+ return 0;
+}
+
+const OSSL_PARAM *EVP_CIPHER_gettable_params(const EVP_CIPHER *cipher)
+{
+ if (cipher != NULL && cipher->gettable_params != NULL)
+ return cipher->gettable_params();
+ return NULL;
+}
+
+const OSSL_PARAM *EVP_CIPHER_settable_ctx_params(const EVP_CIPHER *cipher)
+{
+ if (cipher != NULL && cipher->settable_ctx_params != NULL)
+ return cipher->settable_ctx_params();
+ return NULL;
+}
+
+const OSSL_PARAM *EVP_CIPHER_gettable_ctx_params(const EVP_CIPHER *cipher)
+{
+ if (cipher != NULL && cipher->gettable_ctx_params != NULL)
+ return cipher->gettable_ctx_params();
+ return NULL;
+}
+
int EVP_CIPHER_CTX_rand_key(EVP_CIPHER_CTX *ctx, unsigned char *key)
{
- int kl;
if (ctx->cipher->flags & EVP_CIPH_RAND_KEY)
return EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_RAND_KEY, 0, key);
- kl = EVP_CIPHER_CTX_key_length(ctx);
- if (kl <= 0 || RAND_priv_bytes(key, kl) <= 0)
- return 0;
- return 1;
+
+#ifdef FIPS_MODE
+ return 0;
+#else
+ {
+ int kl;
+
+ kl = EVP_CIPHER_CTX_key_length(ctx);
+ if (kl <= 0 || RAND_priv_bytes(key, kl) <= 0)
+ return 0;
+ return 1;
+ }
+#endif /* FIPS_MODE */
}
int EVP_CIPHER_CTX_copy(EVP_CIPHER_CTX *out, const EVP_CIPHER_CTX *in)
*out = *in;
out->provctx = NULL;
- if (in->fetched_cipher != NULL && !EVP_CIPHER_upref(in->fetched_cipher)) {
+ if (in->fetched_cipher != NULL && !EVP_CIPHER_up_ref(in->fetched_cipher)) {
out->fetched_cipher = NULL;
return 0;
}
/* TODO(3.0): Remove legacy code below */
legacy:
-#ifndef OPENSSL_NO_ENGINE
+#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE)
/* Make sure it's safe to copy a cipher context using an ENGINE */
if (in->engine && !ENGINE_init(in->engine)) {
EVPerr(EVP_F_EVP_CIPHER_CTX_COPY, ERR_R_ENGINE_LIB);
return 1;
}
-static void *evp_cipher_from_dispatch(int nid, const OSSL_DISPATCH *fns,
- OSSL_PROVIDER *prov)
+EVP_CIPHER *evp_cipher_new(void)
+{
+ EVP_CIPHER *cipher = OPENSSL_zalloc(sizeof(EVP_CIPHER));
+
+ if (cipher != NULL) {
+ cipher->lock = CRYPTO_THREAD_lock_new();
+ if (cipher->lock == NULL) {
+ OPENSSL_free(cipher);
+ return NULL;
+ }
+ cipher->refcnt = 1;
+ }
+ return cipher;
+}
+
+/*
+ * FIPS module note: since internal fetches will be entirely
+ * provider based, we know that none of its code depends on legacy
+ * NIDs or any functionality that use them.
+ */
+#ifndef FIPS_MODE
+/* TODO(3.x) get rid of the need for legacy NIDs */
+static void set_legacy_nid(const char *name, void *vlegacy_nid)
+{
+ int nid;
+ int *legacy_nid = vlegacy_nid;
+
+ if (*legacy_nid == -1) /* We found a clash already */
+ return;
+ if ((nid = OBJ_sn2nid(name)) == NID_undef
+ && (nid = OBJ_ln2nid(name)) == NID_undef)
+ return;
+ if (*legacy_nid != NID_undef && *legacy_nid != nid) {
+ *legacy_nid = -1;
+ return;
+ }
+ *legacy_nid = nid;
+}
+#endif
+
+static void *evp_cipher_from_dispatch(const int name_id,
+ const OSSL_DISPATCH *fns,
+ OSSL_PROVIDER *prov,
+ void *unused)
{
EVP_CIPHER *cipher = NULL;
int fnciphcnt = 0, fnctxcnt = 0;
- if ((cipher = EVP_CIPHER_meth_new(nid, 0, 0)) == NULL)
+ if ((cipher = evp_cipher_new()) == NULL) {
+ EVPerr(0, ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+
+#ifndef FIPS_MODE
+ /* TODO(3.x) get rid of the need for legacy NIDs */
+ cipher->nid = NID_undef;
+ evp_doall_names(prov, name_id, set_legacy_nid, &cipher->nid);
+ if (cipher->nid == -1) {
+ ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR);
+ EVP_CIPHER_free(cipher);
return NULL;
+ }
+#endif
+
+ cipher->name_id = name_id;
for (; fns->function_id != 0; fns++) {
switch (fns->function_id) {
break;
cipher->dupctx = OSSL_get_OP_cipher_dupctx(fns);
break;
- case OSSL_FUNC_CIPHER_KEY_LENGTH:
- if (cipher->key_length != NULL)
+ case OSSL_FUNC_CIPHER_GET_PARAMS:
+ if (cipher->get_params != NULL)
break;
- cipher->key_length = OSSL_get_OP_cipher_key_length(fns);
+ cipher->get_params = OSSL_get_OP_cipher_get_params(fns);
break;
- case OSSL_FUNC_CIPHER_IV_LENGTH:
- if (cipher->iv_length != NULL)
+ case OSSL_FUNC_CIPHER_GET_CTX_PARAMS:
+ if (cipher->get_ctx_params != NULL)
break;
- cipher->iv_length = OSSL_get_OP_cipher_iv_length(fns);
+ cipher->get_ctx_params = OSSL_get_OP_cipher_get_ctx_params(fns);
break;
- case OSSL_FUNC_CIPHER_BLOCK_SIZE:
- if (cipher->blocksize != NULL)
+ case OSSL_FUNC_CIPHER_SET_CTX_PARAMS:
+ if (cipher->set_ctx_params != NULL)
break;
- cipher->blocksize = OSSL_get_OP_cipher_block_size(fns);
+ cipher->set_ctx_params = OSSL_get_OP_cipher_set_ctx_params(fns);
break;
- case OSSL_FUNC_CIPHER_GET_PARAMS:
- if (cipher->get_params != NULL)
+ case OSSL_FUNC_CIPHER_GETTABLE_PARAMS:
+ if (cipher->gettable_params != NULL)
break;
- cipher->get_params = OSSL_get_OP_cipher_get_params(fns);
+ cipher->gettable_params = OSSL_get_OP_cipher_gettable_params(fns);
break;
- case OSSL_FUNC_CIPHER_CTX_GET_PARAMS:
- if (cipher->ctx_get_params != NULL)
+ case OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS:
+ if (cipher->gettable_ctx_params != NULL)
break;
- cipher->ctx_get_params = OSSL_get_OP_cipher_ctx_get_params(fns);
+ cipher->gettable_ctx_params =
+ OSSL_get_OP_cipher_gettable_ctx_params(fns);
break;
- case OSSL_FUNC_CIPHER_CTX_SET_PARAMS:
- if (cipher->ctx_set_params != NULL)
+ case OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS:
+ if (cipher->settable_ctx_params != NULL)
break;
- cipher->ctx_set_params = OSSL_get_OP_cipher_ctx_set_params(fns);
+ cipher->settable_ctx_params =
+ OSSL_get_OP_cipher_settable_ctx_params(fns);
break;
}
}
if ((fnciphcnt != 0 && fnciphcnt != 3 && fnciphcnt != 4)
|| (fnciphcnt == 0 && cipher->ccipher == NULL)
- || fnctxcnt != 2
- || cipher->blocksize == NULL
- || cipher->iv_length == NULL
- || cipher->key_length == NULL) {
+ || fnctxcnt != 2) {
/*
* In order to be a consistent set of functions we must have at least
* a complete set of "encrypt" functions, or a complete set of "decrypt"
- * functions, or a single "cipher" function. In all cases we need a
- * complete set of context management functions, as well as the
- * blocksize, iv_length and key_length functions.
+ * functions, or a single "cipher" function. In all cases we need both
+ * the "newctx" and "freectx" functions.
*/
- EVP_CIPHER_meth_free(cipher);
+ EVP_CIPHER_free(cipher);
EVPerr(EVP_F_EVP_CIPHER_FROM_DISPATCH, EVP_R_INVALID_PROVIDER_FUNCTIONS);
return NULL;
}
cipher->prov = prov;
if (prov != NULL)
- ossl_provider_upref(prov);
+ ossl_provider_up_ref(prov);
return cipher;
}
-static int evp_cipher_upref(void *cipher)
+static int evp_cipher_up_ref(void *cipher)
{
- return EVP_CIPHER_upref(cipher);
+ return EVP_CIPHER_up_ref(cipher);
}
static void evp_cipher_free(void *cipher)
{
- EVP_CIPHER_meth_free(cipher);
+ EVP_CIPHER_free(cipher);
}
-static int evp_cipher_nid(void *vcipher)
+EVP_CIPHER *EVP_CIPHER_fetch(OPENSSL_CTX *ctx, const char *algorithm,
+ const char *properties)
{
- EVP_CIPHER *cipher = vcipher;
+ EVP_CIPHER *cipher =
+ evp_generic_fetch(ctx, OSSL_OP_CIPHER, algorithm, properties,
+ evp_cipher_from_dispatch, NULL, evp_cipher_up_ref,
+ evp_cipher_free);
- return cipher->nid;
+ return cipher;
}
-EVP_CIPHER *EVP_CIPHER_fetch(OPENSSL_CTX *ctx, const char *algorithm,
- const char *properties)
+int EVP_CIPHER_up_ref(EVP_CIPHER *cipher)
+{
+ int ref = 0;
+
+ CRYPTO_UP_REF(&cipher->refcnt, &ref, cipher->lock);
+ return 1;
+}
+
+void EVP_CIPHER_free(EVP_CIPHER *cipher)
+{
+ int i;
+
+ if (cipher == NULL)
+ return;
+
+ CRYPTO_DOWN_REF(&cipher->refcnt, &i, cipher->lock);
+ if (i > 0)
+ return;
+ ossl_provider_free(cipher->prov);
+ CRYPTO_THREAD_lock_free(cipher->lock);
+ OPENSSL_free(cipher);
+}
+
+void EVP_CIPHER_do_all_ex(OPENSSL_CTX *libctx,
+ void (*fn)(EVP_CIPHER *mac, void *arg),
+ void *arg)
{
- return evp_generic_fetch(ctx, OSSL_OP_CIPHER, algorithm, properties,
- evp_cipher_from_dispatch, evp_cipher_upref,
- evp_cipher_free, evp_cipher_nid);
+ evp_generic_do_all(libctx, OSSL_OP_CIPHER,
+ (void (*)(void *, void *))fn, arg,
+ evp_cipher_from_dispatch, NULL, evp_cipher_free);
}
projects / openssl.git / blobdiff