X-Git-Url: https://git.openssl.org/gitweb/?a=blobdiff_plain;f=crypto%2Fevp%2Fbio_md.c;h=288dee01b2203ced5b328a729c4e467d32b0df3f;hb=2eb2b4f3a12d0b8807447913a3b16f21104c701b;hp=30a506ebbaab43976d366d08afc56ca77b0733e0;hpb=349807608f31b20af01a342d0072bb92e0b036e2;p=openssl.git diff --git a/crypto/evp/bio_md.c b/crypto/evp/bio_md.c index 30a506ebba..288dee01b2 100644 --- a/crypto/evp/bio_md.c +++ b/crypto/evp/bio_md.c @@ -1,58 +1,10 @@ -/* 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. +/* + * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. * - * 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.] + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html */ #include @@ -62,6 +14,7 @@ #include #include "internal/evp_int.h" #include "evp_locl.h" +#include "internal/bio.h" /* * BIO_put and BIO_get both add to the digest, BIO_gets returns the digest @@ -69,18 +22,20 @@ static int md_write(BIO *h, char const *buf, int num); static int md_read(BIO *h, char *buf, int size); -/* - * static int md_puts(BIO *h, const char *str); - */ static int md_gets(BIO *h, char *str, int size); static long md_ctrl(BIO *h, int cmd, long arg1, void *arg2); static int md_new(BIO *h); static int md_free(BIO *data); -static long md_callback_ctrl(BIO *h, int cmd, bio_info_cb *fp); +static long md_callback_ctrl(BIO *h, int cmd, BIO_info_cb *fp); -static BIO_METHOD methods_md = { - BIO_TYPE_MD, "message digest", +static const BIO_METHOD methods_md = { + BIO_TYPE_MD, + "message digest", + /* TODO: Convert to new style write function */ + bwrite_conv, md_write, + /* TODO: Convert to new style read function */ + bread_conv, md_read, NULL, /* md_puts, */ md_gets, @@ -90,9 +45,9 @@ static BIO_METHOD methods_md = { md_callback_ctrl, }; -BIO_METHOD *BIO_f_md(void) +const BIO_METHOD *BIO_f_md(void) { - return (&methods_md); + return &methods_md; } static int md_new(BIO *bi) @@ -101,62 +56,68 @@ static int md_new(BIO *bi) ctx = EVP_MD_CTX_new(); if (ctx == NULL) - return (0); + return 0; - bi->init = 0; - bi->ptr = (char *)ctx; - bi->flags = 0; - return (1); + BIO_set_init(bi, 1); + BIO_set_data(bi, ctx); + + return 1; } static int md_free(BIO *a) { if (a == NULL) - return (0); - EVP_MD_CTX_free(a->ptr); - a->ptr = NULL; - a->init = 0; - a->flags = 0; - return (1); + return 0; + EVP_MD_CTX_free(BIO_get_data(a)); + BIO_set_data(a, NULL); + BIO_set_init(a, 0); + + return 1; } static int md_read(BIO *b, char *out, int outl) { int ret = 0; EVP_MD_CTX *ctx; + BIO *next; if (out == NULL) - return (0); - ctx = b->ptr; + return 0; - if ((ctx == NULL) || (b->next_bio == NULL)) - return (0); + ctx = BIO_get_data(b); + next = BIO_next(b); - ret = BIO_read(b->next_bio, out, outl); - if (b->init) { + if ((ctx == NULL) || (next == NULL)) + return 0; + + ret = BIO_read(next, out, outl); + if (BIO_get_init(b)) { if (ret > 0) { if (EVP_DigestUpdate(ctx, (unsigned char *)out, (unsigned int)ret) <= 0) - return (-1); + return -1; } } BIO_clear_retry_flags(b); BIO_copy_next_retry(b); - return (ret); + return ret; } static int md_write(BIO *b, const char *in, int inl) { int ret = 0; EVP_MD_CTX *ctx; + BIO *next; if ((in == NULL) || (inl <= 0)) - return (0); - ctx = b->ptr; + return 0; + + ctx = BIO_get_data(b); + next = BIO_next(b); + if ((ctx != NULL) && (next != NULL)) + ret = BIO_write(next, in, inl); - if ((ctx != NULL) && (b->next_bio != NULL)) - ret = BIO_write(b->next_bio, in, inl); - if (b->init) { + if (BIO_get_init(b)) { if (ret > 0) { if (!EVP_DigestUpdate(ctx, (const unsigned char *)in, (unsigned int)ret)) { @@ -165,11 +126,11 @@ static int md_write(BIO *b, const char *in, int inl) } } } - if (b->next_bio != NULL) { + if (next != NULL) { BIO_clear_retry_flags(b); BIO_copy_next_retry(b); } - return (ret); + return ret; } static long md_ctrl(BIO *b, int cmd, long num, void *ptr) @@ -178,21 +139,23 @@ static long md_ctrl(BIO *b, int cmd, long num, void *ptr) const EVP_MD **ppmd; EVP_MD *md; long ret = 1; - BIO *dbio; + BIO *dbio, *next; + - ctx = b->ptr; + ctx = BIO_get_data(b); + next = BIO_next(b); switch (cmd) { case BIO_CTRL_RESET: - if (b->init) + if (BIO_get_init(b)) ret = EVP_DigestInit_ex(ctx, ctx->digest, NULL); else ret = 0; if (ret > 0) - ret = BIO_ctrl(b->next_bio, cmd, num, ptr); + ret = BIO_ctrl(next, cmd, num, ptr); break; case BIO_C_GET_MD: - if (b->init) { + if (BIO_get_init(b)) { ppmd = ptr; *ppmd = ctx->digest; } else @@ -201,17 +164,17 @@ static long md_ctrl(BIO *b, int cmd, long num, void *ptr) case BIO_C_GET_MD_CTX: pctx = ptr; *pctx = ctx; - b->init = 1; + BIO_set_init(b, 1); break; case BIO_C_SET_MD_CTX: - if (b->init) - b->ptr = ptr; + if (BIO_get_init(b)) + BIO_set_data(b, ptr); else ret = 0; break; case BIO_C_DO_STATE_MACHINE: BIO_clear_retry_flags(b); - ret = BIO_ctrl(b->next_bio, cmd, num, ptr); + ret = BIO_ctrl(next, cmd, num, ptr); BIO_copy_next_retry(b); break; @@ -219,34 +182,38 @@ static long md_ctrl(BIO *b, int cmd, long num, void *ptr) md = ptr; ret = EVP_DigestInit_ex(ctx, md, NULL); if (ret > 0) - b->init = 1; + BIO_set_init(b, 1); break; case BIO_CTRL_DUP: dbio = ptr; - dctx = dbio->ptr; + dctx = BIO_get_data(dbio); if (!EVP_MD_CTX_copy_ex(dctx, ctx)) return 0; - b->init = 1; + BIO_set_init(b, 1); break; default: - ret = BIO_ctrl(b->next_bio, cmd, num, ptr); + ret = BIO_ctrl(next, cmd, num, ptr); break; } - return (ret); + return ret; } -static long md_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp) +static long md_callback_ctrl(BIO *b, int cmd, BIO_info_cb *fp) { long ret = 1; + BIO *next; + + next = BIO_next(b); + + if (next == NULL) + return 0; - if (b->next_bio == NULL) - return (0); switch (cmd) { default: - ret = BIO_callback_ctrl(b->next_bio, cmd, fp); + ret = BIO_callback_ctrl(next, cmd, fp); break; } - return (ret); + return ret; } static int md_gets(BIO *bp, char *buf, int size) @@ -254,20 +221,13 @@ static int md_gets(BIO *bp, char *buf, int size) EVP_MD_CTX *ctx; unsigned int ret; - ctx = bp->ptr; + ctx = BIO_get_data(bp); + if (size < ctx->digest->md_size) - return (0); + return 0; + if (EVP_DigestFinal_ex(ctx, (unsigned char *)buf, &ret) <= 0) return -1; - return ((int)ret); + return (int)ret; } - -/*- -static int md_puts(bp,str) -BIO *bp; -char *str; - { - return(-1); - } -*/