From 27594eeae6f40a402bc3110f06d57975168e74e3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Parm=C3=A9nides=20GV?= Date: Thu, 4 Jun 2015 19:20:15 +0200 Subject: ics-openvpn as a submodule! beautiful ics-openvpn is now officially on GitHub, and they track openssl and openvpn as submodules, so it's easier to update everything. Just a git submodule update --recursive. I've also set up soft links to native modules from ics-openvpn in app, so that we don't copy files in Gradle (which was causing problems with the submodules .git* files, not being copied). That makes the repo cleaner. --- app/openssl/crypto/rand/md_rand.c | 597 -------------------------------------- 1 file changed, 597 deletions(-) delete mode 100644 app/openssl/crypto/rand/md_rand.c (limited to 'app/openssl/crypto/rand/md_rand.c') diff --git a/app/openssl/crypto/rand/md_rand.c b/app/openssl/crypto/rand/md_rand.c deleted file mode 100644 index 888b4eb8..00000000 --- a/app/openssl/crypto/rand/md_rand.c +++ /dev/null @@ -1,597 +0,0 @@ -/* crypto/rand/md_rand.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.] - */ -/* ==================================================================== - * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved. - * - * 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 above 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 acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" - * - * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For written permission, please contact - * openssl-core@openssl.org. - * - * 5. Products derived from this software may not be called "OpenSSL" - * nor may "OpenSSL" appear in their names without prior written - * permission of the OpenSSL Project. - * - * 6. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit (http://www.openssl.org/)" - * - * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY - * EXPRESSED 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 OpenSSL PROJECT OR - * ITS 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. - * ==================================================================== - * - * This product includes cryptographic software written by Eric Young - * (eay@cryptsoft.com). This product includes software written by Tim - * Hudson (tjh@cryptsoft.com). - * - */ - -#define OPENSSL_FIPSEVP - -#ifdef MD_RAND_DEBUG -# ifndef NDEBUG -# define NDEBUG -# endif -#endif - -#include -#include -#include - -#include "e_os.h" - -#include -#include -#include "rand_lcl.h" - -#include - -#ifdef BN_DEBUG -# define PREDICT -#endif - -/* #define PREDICT 1 */ - -#define STATE_SIZE 1023 -static int state_num=0,state_index=0; -static unsigned char state[STATE_SIZE+MD_DIGEST_LENGTH]; -static unsigned char md[MD_DIGEST_LENGTH]; -static long md_count[2]={0,0}; -static double entropy=0; -static int initialized=0; - -static unsigned int crypto_lock_rand = 0; /* may be set only when a thread - * holds CRYPTO_LOCK_RAND - * (to prevent double locking) */ -/* access to lockin_thread is synchronized by CRYPTO_LOCK_RAND2 */ -static CRYPTO_THREADID locking_threadid; /* valid iff crypto_lock_rand is set */ - - -#ifdef PREDICT -int rand_predictable=0; -#endif - -const char RAND_version[]="RAND" OPENSSL_VERSION_PTEXT; - -static void ssleay_rand_cleanup(void); -static void ssleay_rand_seed(const void *buf, int num); -static void ssleay_rand_add(const void *buf, int num, double add_entropy); -static int ssleay_rand_nopseudo_bytes(unsigned char *buf, int num); -static int ssleay_rand_pseudo_bytes(unsigned char *buf, int num); -static int ssleay_rand_status(void); - -RAND_METHOD rand_ssleay_meth={ - ssleay_rand_seed, - ssleay_rand_nopseudo_bytes, - ssleay_rand_cleanup, - ssleay_rand_add, - ssleay_rand_pseudo_bytes, - ssleay_rand_status - }; - -RAND_METHOD *RAND_SSLeay(void) - { - return(&rand_ssleay_meth); - } - -static void ssleay_rand_cleanup(void) - { - OPENSSL_cleanse(state,sizeof(state)); - state_num=0; - state_index=0; - OPENSSL_cleanse(md,MD_DIGEST_LENGTH); - md_count[0]=0; - md_count[1]=0; - entropy=0; - initialized=0; - } - -static void ssleay_rand_add(const void *buf, int num, double add) - { - int i,j,k,st_idx; - long md_c[2]; - unsigned char local_md[MD_DIGEST_LENGTH]; - EVP_MD_CTX m; - int do_not_lock; - - if (!num) - return; - - /* - * (Based on the rand(3) manpage) - * - * The input is chopped up into units of 20 bytes (or less for - * the last block). Each of these blocks is run through the hash - * function as follows: The data passed to the hash function - * is the current 'md', the same number of bytes from the 'state' - * (the location determined by in incremented looping index) as - * the current 'block', the new key data 'block', and 'count' - * (which is incremented after each use). - * The result of this is kept in 'md' and also xored into the - * 'state' at the same locations that were used as input into the - * hash function. - */ - - /* check if we already have the lock */ - if (crypto_lock_rand) - { - CRYPTO_THREADID cur; - CRYPTO_THREADID_current(&cur); - CRYPTO_r_lock(CRYPTO_LOCK_RAND2); - do_not_lock = !CRYPTO_THREADID_cmp(&locking_threadid, &cur); - CRYPTO_r_unlock(CRYPTO_LOCK_RAND2); - } - else - do_not_lock = 0; - - if (!do_not_lock) CRYPTO_w_lock(CRYPTO_LOCK_RAND); - st_idx=state_index; - - /* use our own copies of the counters so that even - * if a concurrent thread seeds with exactly the - * same data and uses the same subarray there's _some_ - * difference */ - md_c[0] = md_count[0]; - md_c[1] = md_count[1]; - - memcpy(local_md, md, sizeof md); - - /* state_index <= state_num <= STATE_SIZE */ - state_index += num; - if (state_index >= STATE_SIZE) - { - state_index%=STATE_SIZE; - state_num=STATE_SIZE; - } - else if (state_num < STATE_SIZE) - { - if (state_index > state_num) - state_num=state_index; - } - /* state_index <= state_num <= STATE_SIZE */ - - /* state[st_idx], ..., state[(st_idx + num - 1) % STATE_SIZE] - * are what we will use now, but other threads may use them - * as well */ - - md_count[1] += (num / MD_DIGEST_LENGTH) + (num % MD_DIGEST_LENGTH > 0); - - if (!do_not_lock) CRYPTO_w_unlock(CRYPTO_LOCK_RAND); - - EVP_MD_CTX_init(&m); - for (i=0; i MD_DIGEST_LENGTH)?MD_DIGEST_LENGTH:j; - - MD_Init(&m); - MD_Update(&m,local_md,MD_DIGEST_LENGTH); - k=(st_idx+j)-STATE_SIZE; - if (k > 0) - { - MD_Update(&m,&(state[st_idx]),j-k); - MD_Update(&m,&(state[0]),k); - } - else - MD_Update(&m,&(state[st_idx]),j); - - /* DO NOT REMOVE THE FOLLOWING CALL TO MD_Update()! */ - MD_Update(&m,buf,j); - /* We know that line may cause programs such as - purify and valgrind to complain about use of - uninitialized data. The problem is not, it's - with the caller. Removing that line will make - sure you get really bad randomness and thereby - other problems such as very insecure keys. */ - - MD_Update(&m,(unsigned char *)&(md_c[0]),sizeof(md_c)); - MD_Final(&m,local_md); - md_c[1]++; - - buf=(const char *)buf + j; - - for (k=0; k= STATE_SIZE) - st_idx=0; - } - } - EVP_MD_CTX_cleanup(&m); - - if (!do_not_lock) CRYPTO_w_lock(CRYPTO_LOCK_RAND); - /* Don't just copy back local_md into md -- this could mean that - * other thread's seeding remains without effect (except for - * the incremented counter). By XORing it we keep at least as - * much entropy as fits into md. */ - for (k = 0; k < (int)sizeof(md); k++) - { - md[k] ^= local_md[k]; - } - if (entropy < ENTROPY_NEEDED) /* stop counting when we have enough */ - entropy += add; - if (!do_not_lock) CRYPTO_w_unlock(CRYPTO_LOCK_RAND); - -#if !defined(OPENSSL_THREADS) && !defined(OPENSSL_SYS_WIN32) - assert(md_c[1] == md_count[1]); -#endif - } - -static void ssleay_rand_seed(const void *buf, int num) - { - ssleay_rand_add(buf, num, (double)num); - } - -int ssleay_rand_bytes(unsigned char *buf, int num, int pseudo, int lock) - { - static volatile int stirred_pool = 0; - int i,j,k,st_num,st_idx; - int num_ceil; - int ok; - long md_c[2]; - unsigned char local_md[MD_DIGEST_LENGTH]; - EVP_MD_CTX m; -#ifndef GETPID_IS_MEANINGLESS - pid_t curr_pid = getpid(); -#endif - int do_stir_pool = 0; - -#ifdef PREDICT - if (rand_predictable) - { - static unsigned char val=0; - - for (i=0; i= ENTROPY_NEEDED); - if (!ok) - { - /* If the PRNG state is not yet unpredictable, then seeing - * the PRNG output may help attackers to determine the new - * state; thus we have to decrease the entropy estimate. - * Once we've had enough initial seeding we don't bother to - * adjust the entropy count, though, because we're not ambitious - * to provide *information-theoretic* randomness. - * - * NOTE: This approach fails if the program forks before - * we have enough entropy. Entropy should be collected - * in a separate input pool and be transferred to the - * output pool only when the entropy limit has been reached. - */ - entropy -= num; - if (entropy < 0) - entropy = 0; - } - - if (do_stir_pool) - { - /* In the output function only half of 'md' remains secret, - * so we better make sure that the required entropy gets - * 'evenly distributed' through 'state', our randomness pool. - * The input function (ssleay_rand_add) chains all of 'md', - * which makes it more suitable for this purpose. - */ - - int n = STATE_SIZE; /* so that the complete pool gets accessed */ - while (n > 0) - { -#if MD_DIGEST_LENGTH > 20 -# error "Please adjust DUMMY_SEED." -#endif -#define DUMMY_SEED "...................." /* at least MD_DIGEST_LENGTH */ - /* Note that the seed does not matter, it's just that - * ssleay_rand_add expects to have something to hash. */ - ssleay_rand_add(DUMMY_SEED, MD_DIGEST_LENGTH, 0.0); - n -= MD_DIGEST_LENGTH; - } - if (ok) - stirred_pool = 1; - } - - st_idx=state_index; - st_num=state_num; - md_c[0] = md_count[0]; - md_c[1] = md_count[1]; - memcpy(local_md, md, sizeof md); - - state_index+=num_ceil; - if (state_index > state_num) - state_index %= state_num; - - /* state[st_idx], ..., state[(st_idx + num_ceil - 1) % st_num] - * are now ours (but other threads may use them too) */ - - md_count[0] += 1; - - /* before unlocking, we must clear 'crypto_lock_rand' */ - crypto_lock_rand = 0; - if (lock) - CRYPTO_w_unlock(CRYPTO_LOCK_RAND); - - while (num > 0) - { - /* num_ceil -= MD_DIGEST_LENGTH/2 */ - j=(num >= MD_DIGEST_LENGTH/2)?MD_DIGEST_LENGTH/2:num; - num-=j; - MD_Init(&m); -#ifndef GETPID_IS_MEANINGLESS - if (curr_pid) /* just in the first iteration to save time */ - { - MD_Update(&m,(unsigned char*)&curr_pid,sizeof curr_pid); - curr_pid = 0; - } -#endif - MD_Update(&m,local_md,MD_DIGEST_LENGTH); - MD_Update(&m,(unsigned char *)&(md_c[0]),sizeof(md_c)); - -#ifndef PURIFY /* purify complains */ - /* The following line uses the supplied buffer as a small - * source of entropy: since this buffer is often uninitialised - * it may cause programs such as purify or valgrind to - * complain. So for those builds it is not used: the removal - * of such a small source of entropy has negligible impact on - * security. - */ - MD_Update(&m,buf,j); -#endif - - k=(st_idx+MD_DIGEST_LENGTH/2)-st_num; - if (k > 0) - { - MD_Update(&m,&(state[st_idx]),MD_DIGEST_LENGTH/2-k); - MD_Update(&m,&(state[0]),k); - } - else - MD_Update(&m,&(state[st_idx]),MD_DIGEST_LENGTH/2); - MD_Final(&m,local_md); - - for (i=0; i= st_num) - st_idx=0; - if (i < j) - *(buf++)=local_md[i+MD_DIGEST_LENGTH/2]; - } - } - - MD_Init(&m); - MD_Update(&m,(unsigned char *)&(md_c[0]),sizeof(md_c)); - MD_Update(&m,local_md,MD_DIGEST_LENGTH); - if (lock) - CRYPTO_w_lock(CRYPTO_LOCK_RAND); - MD_Update(&m,md,MD_DIGEST_LENGTH); - MD_Final(&m,md); - if (lock) - CRYPTO_w_unlock(CRYPTO_LOCK_RAND); - - EVP_MD_CTX_cleanup(&m); - if (ok) - return(1); - else if (pseudo) - return 0; - else - { - RANDerr(RAND_F_SSLEAY_RAND_BYTES,RAND_R_PRNG_NOT_SEEDED); - ERR_add_error_data(1, "You need to read the OpenSSL FAQ, " - "http://www.openssl.org/support/faq.html"); - return(0); - } - } - -static int ssleay_rand_nopseudo_bytes(unsigned char *buf, int num) - { - return ssleay_rand_bytes(buf, num, 0, 1); - } - -/* pseudo-random bytes that are guaranteed to be unique but not - unpredictable */ -static int ssleay_rand_pseudo_bytes(unsigned char *buf, int num) - { - return ssleay_rand_bytes(buf, num, 1, 1); - } - -static int ssleay_rand_status(void) - { - CRYPTO_THREADID cur; - int ret; - int do_not_lock; - - CRYPTO_THREADID_current(&cur); - /* check if we already have the lock - * (could happen if a RAND_poll() implementation calls RAND_status()) */ - if (crypto_lock_rand) - { - CRYPTO_r_lock(CRYPTO_LOCK_RAND2); - do_not_lock = !CRYPTO_THREADID_cmp(&locking_threadid, &cur); - CRYPTO_r_unlock(CRYPTO_LOCK_RAND2); - } - else - do_not_lock = 0; - - if (!do_not_lock) - { - CRYPTO_w_lock(CRYPTO_LOCK_RAND); - - /* prevent ssleay_rand_bytes() from trying to obtain the lock again */ - CRYPTO_w_lock(CRYPTO_LOCK_RAND2); - CRYPTO_THREADID_cpy(&locking_threadid, &cur); - CRYPTO_w_unlock(CRYPTO_LOCK_RAND2); - crypto_lock_rand = 1; - } - - if (!initialized) - { - RAND_poll(); - initialized = 1; - } - - ret = entropy >= ENTROPY_NEEDED; - - if (!do_not_lock) - { - /* before unlocking, we must clear 'crypto_lock_rand' */ - crypto_lock_rand = 0; - - CRYPTO_w_unlock(CRYPTO_LOCK_RAND); - } - - return ret; - } -- cgit v1.2.3