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Diffstat (limited to 'thirdparty/openssl/crypto/evp/bio_enc.c')
-rw-r--r--thirdparty/openssl/crypto/evp/bio_enc.c437
1 files changed, 0 insertions, 437 deletions
diff --git a/thirdparty/openssl/crypto/evp/bio_enc.c b/thirdparty/openssl/crypto/evp/bio_enc.c
deleted file mode 100644
index 0806f233b6..0000000000
--- a/thirdparty/openssl/crypto/evp/bio_enc.c
+++ /dev/null
@@ -1,437 +0,0 @@
-/* crypto/evp/bio_enc.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * 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 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 acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS 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 AUTHOR OR 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.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- */
-
-#include <stdio.h>
-#include <errno.h>
-#include "cryptlib.h"
-#include <openssl/buffer.h>
-#include <openssl/evp.h>
-
-static int enc_write(BIO *h, const char *buf, int num);
-static int enc_read(BIO *h, char *buf, int size);
-/*
- * static int enc_puts(BIO *h, const char *str);
- */
-/*
- * static int enc_gets(BIO *h, char *str, int size);
- */
-static long enc_ctrl(BIO *h, int cmd, long arg1, void *arg2);
-static int enc_new(BIO *h);
-static int enc_free(BIO *data);
-static long enc_callback_ctrl(BIO *h, int cmd, bio_info_cb *fps);
-#define ENC_BLOCK_SIZE (1024*4)
-#define BUF_OFFSET (EVP_MAX_BLOCK_LENGTH*2)
-
-typedef struct enc_struct {
- int buf_len;
- int buf_off;
- int cont; /* <= 0 when finished */
- int finished;
- int ok; /* bad decrypt */
- EVP_CIPHER_CTX cipher;
- /*
- * buf is larger than ENC_BLOCK_SIZE because EVP_DecryptUpdate can return
- * up to a block more data than is presented to it
- */
- char buf[ENC_BLOCK_SIZE + BUF_OFFSET + 2];
-} BIO_ENC_CTX;
-
-static BIO_METHOD methods_enc = {
- BIO_TYPE_CIPHER, "cipher",
- enc_write,
- enc_read,
- NULL, /* enc_puts, */
- NULL, /* enc_gets, */
- enc_ctrl,
- enc_new,
- enc_free,
- enc_callback_ctrl,
-};
-
-BIO_METHOD *BIO_f_cipher(void)
-{
- return (&methods_enc);
-}
-
-static int enc_new(BIO *bi)
-{
- BIO_ENC_CTX *ctx;
-
- ctx = (BIO_ENC_CTX *)OPENSSL_malloc(sizeof(BIO_ENC_CTX));
- if (ctx == NULL)
- return (0);
- EVP_CIPHER_CTX_init(&ctx->cipher);
-
- ctx->buf_len = 0;
- ctx->buf_off = 0;
- ctx->cont = 1;
- ctx->finished = 0;
- ctx->ok = 1;
-
- bi->init = 0;
- bi->ptr = (char *)ctx;
- bi->flags = 0;
- return (1);
-}
-
-static int enc_free(BIO *a)
-{
- BIO_ENC_CTX *b;
-
- if (a == NULL)
- return (0);
- b = (BIO_ENC_CTX *)a->ptr;
- EVP_CIPHER_CTX_cleanup(&(b->cipher));
- OPENSSL_cleanse(a->ptr, sizeof(BIO_ENC_CTX));
- OPENSSL_free(a->ptr);
- a->ptr = NULL;
- a->init = 0;
- a->flags = 0;
- return (1);
-}
-
-static int enc_read(BIO *b, char *out, int outl)
-{
- int ret = 0, i;
- BIO_ENC_CTX *ctx;
-
- if (out == NULL)
- return (0);
- ctx = (BIO_ENC_CTX *)b->ptr;
-
- if ((ctx == NULL) || (b->next_bio == NULL))
- return (0);
-
- /* First check if there are bytes decoded/encoded */
- if (ctx->buf_len > 0) {
- i = ctx->buf_len - ctx->buf_off;
- if (i > outl)
- i = outl;
- memcpy(out, &(ctx->buf[ctx->buf_off]), i);
- ret = i;
- out += i;
- outl -= i;
- ctx->buf_off += i;
- if (ctx->buf_len == ctx->buf_off) {
- ctx->buf_len = 0;
- ctx->buf_off = 0;
- }
- }
-
- /*
- * At this point, we have room of outl bytes and an empty buffer, so we
- * should read in some more.
- */
-
- while (outl > 0) {
- if (ctx->cont <= 0)
- break;
-
- /*
- * read in at IV offset, read the EVP_Cipher documentation about why
- */
- i = BIO_read(b->next_bio, &(ctx->buf[BUF_OFFSET]), ENC_BLOCK_SIZE);
-
- if (i <= 0) {
- /* Should be continue next time we are called? */
- if (!BIO_should_retry(b->next_bio)) {
- ctx->cont = i;
- i = EVP_CipherFinal_ex(&(ctx->cipher),
- (unsigned char *)ctx->buf,
- &(ctx->buf_len));
- ctx->ok = i;
- ctx->buf_off = 0;
- } else {
- ret = (ret == 0) ? i : ret;
- break;
- }
- } else {
- if (!EVP_CipherUpdate(&ctx->cipher,
- (unsigned char *)ctx->buf, &ctx->buf_len,
- (unsigned char *)&(ctx->buf[BUF_OFFSET]),
- i)) {
- BIO_clear_retry_flags(b);
- ctx->ok = 0;
- return 0;
- }
- ctx->cont = 1;
- /*
- * Note: it is possible for EVP_CipherUpdate to decrypt zero
- * bytes because this is or looks like the final block: if this
- * happens we should retry and either read more data or decrypt
- * the final block
- */
- if (ctx->buf_len == 0)
- continue;
- }
-
- if (ctx->buf_len <= outl)
- i = ctx->buf_len;
- else
- i = outl;
- if (i <= 0)
- break;
- memcpy(out, ctx->buf, i);
- ret += i;
- ctx->buf_off = i;
- outl -= i;
- out += i;
- }
-
- BIO_clear_retry_flags(b);
- BIO_copy_next_retry(b);
- return ((ret == 0) ? ctx->cont : ret);
-}
-
-static int enc_write(BIO *b, const char *in, int inl)
-{
- int ret = 0, n, i;
- BIO_ENC_CTX *ctx;
-
- ctx = (BIO_ENC_CTX *)b->ptr;
- ret = inl;
-
- BIO_clear_retry_flags(b);
- n = ctx->buf_len - ctx->buf_off;
- while (n > 0) {
- i = BIO_write(b->next_bio, &(ctx->buf[ctx->buf_off]), n);
- if (i <= 0) {
- BIO_copy_next_retry(b);
- return (i);
- }
- ctx->buf_off += i;
- n -= i;
- }
- /* at this point all pending data has been written */
-
- if ((in == NULL) || (inl <= 0))
- return (0);
-
- ctx->buf_off = 0;
- while (inl > 0) {
- n = (inl > ENC_BLOCK_SIZE) ? ENC_BLOCK_SIZE : inl;
- if (!EVP_CipherUpdate(&ctx->cipher,
- (unsigned char *)ctx->buf, &ctx->buf_len,
- (unsigned char *)in, n)) {
- BIO_clear_retry_flags(b);
- ctx->ok = 0;
- return 0;
- }
- inl -= n;
- in += n;
-
- ctx->buf_off = 0;
- n = ctx->buf_len;
- while (n > 0) {
- i = BIO_write(b->next_bio, &(ctx->buf[ctx->buf_off]), n);
- if (i <= 0) {
- BIO_copy_next_retry(b);
- return (ret == inl) ? i : ret - inl;
- }
- n -= i;
- ctx->buf_off += i;
- }
- ctx->buf_len = 0;
- ctx->buf_off = 0;
- }
- BIO_copy_next_retry(b);
- return (ret);
-}
-
-static long enc_ctrl(BIO *b, int cmd, long num, void *ptr)
-{
- BIO *dbio;
- BIO_ENC_CTX *ctx, *dctx;
- long ret = 1;
- int i;
- EVP_CIPHER_CTX **c_ctx;
-
- ctx = (BIO_ENC_CTX *)b->ptr;
-
- switch (cmd) {
- case BIO_CTRL_RESET:
- ctx->ok = 1;
- ctx->finished = 0;
- EVP_CipherInit_ex(&(ctx->cipher), NULL, NULL, NULL, NULL,
- ctx->cipher.encrypt);
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
- break;
- case BIO_CTRL_EOF: /* More to read */
- if (ctx->cont <= 0)
- ret = 1;
- else
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
- break;
- case BIO_CTRL_WPENDING:
- ret = ctx->buf_len - ctx->buf_off;
- if (ret <= 0)
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
- break;
- case BIO_CTRL_PENDING: /* More to read in buffer */
- ret = ctx->buf_len - ctx->buf_off;
- if (ret <= 0)
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
- break;
- case BIO_CTRL_FLUSH:
- /* do a final write */
- again:
- while (ctx->buf_len != ctx->buf_off) {
- i = enc_write(b, NULL, 0);
- if (i < 0)
- return i;
- }
-
- if (!ctx->finished) {
- ctx->finished = 1;
- ctx->buf_off = 0;
- ret = EVP_CipherFinal_ex(&(ctx->cipher),
- (unsigned char *)ctx->buf,
- &(ctx->buf_len));
- ctx->ok = (int)ret;
- if (ret <= 0)
- break;
-
- /* push out the bytes */
- goto again;
- }
-
- /* Finally flush the underlying BIO */
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
- break;
- case BIO_C_GET_CIPHER_STATUS:
- ret = (long)ctx->ok;
- break;
- case BIO_C_DO_STATE_MACHINE:
- BIO_clear_retry_flags(b);
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
- BIO_copy_next_retry(b);
- break;
- case BIO_C_GET_CIPHER_CTX:
- c_ctx = (EVP_CIPHER_CTX **)ptr;
- (*c_ctx) = &(ctx->cipher);
- b->init = 1;
- break;
- case BIO_CTRL_DUP:
- dbio = (BIO *)ptr;
- dctx = (BIO_ENC_CTX *)dbio->ptr;
- EVP_CIPHER_CTX_init(&dctx->cipher);
- ret = EVP_CIPHER_CTX_copy(&dctx->cipher, &ctx->cipher);
- if (ret)
- dbio->init = 1;
- break;
- default:
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
- break;
- }
- return (ret);
-}
-
-static long enc_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
-{
- long ret = 1;
-
- if (b->next_bio == NULL)
- return (0);
- switch (cmd) {
- default:
- ret = BIO_callback_ctrl(b->next_bio, cmd, fp);
- break;
- }
- return (ret);
-}
-
-/*-
-void BIO_set_cipher_ctx(b,c)
-BIO *b;
-EVP_CIPHER_ctx *c;
- {
- if (b == NULL) return;
-
- if ((b->callback != NULL) &&
- (b->callback(b,BIO_CB_CTRL,(char *)c,BIO_CTRL_SET,e,0L) <= 0))
- return;
-
- b->init=1;
- ctx=(BIO_ENC_CTX *)b->ptr;
- memcpy(ctx->cipher,c,sizeof(EVP_CIPHER_CTX));
-
- if (b->callback != NULL)
- b->callback(b,BIO_CB_CTRL,(char *)c,BIO_CTRL_SET,e,1L);
- }
-*/
-
-void BIO_set_cipher(BIO *b, const EVP_CIPHER *c, const unsigned char *k,
- const unsigned char *i, int e)
-{
- BIO_ENC_CTX *ctx;
-
- if (b == NULL)
- return;
-
- if ((b->callback != NULL) &&
- (b->callback(b, BIO_CB_CTRL, (const char *)c, BIO_CTRL_SET, e, 0L) <=
- 0))
- return;
-
- b->init = 1;
- ctx = (BIO_ENC_CTX *)b->ptr;
- EVP_CipherInit_ex(&(ctx->cipher), c, NULL, k, i, e);
-
- if (b->callback != NULL)
- b->callback(b, BIO_CB_CTRL, (const char *)c, BIO_CTRL_SET, e, 1L);
-}