Mercurial > dropbear

annotate libtomcrypt/src/misc/crypt/crypt_unregister_prng.c @ 1665:7c17995bcdfb

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Improve address logging on early exit messages (#83) Change 'Early exit' and 'Exit before auth' messages to include the IP address & port as part of the message. This allows log scanning utilities such as 'fail2ban' to obtain the offending IP address as part of the failure event instead of extracting the PID from the message and then scanning the log again for match 'child connection from' messages Signed-off-by: Kevin Darbyshire-Bryant <[email protected]>
author Kevin Darbyshire-Bryant <6500011+ldir-EDB0@users.noreply.github.com>
date Wed, 18 Mar 2020 15:28:56 +0000
parents 6dba84798cd5
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 */
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9 #include "tomcrypt.h"
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11 /**
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12 @file crypt_unregister_prng.c
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13 Unregister a PRNG, Tom St Denis
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14 */
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16 /**
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17 Unregister a PRNG from the descriptor table
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18 @param prng The PRNG descriptor to remove
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19 @return CRYPT_OK on success
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20 */
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21 int unregister_prng(const struct ltc_prng_descriptor *prng)
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22 {
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23 int x;
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25 LTC_ARGCHK(prng != NULL);
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27 /* is it already registered? */
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28 LTC_MUTEX_LOCK(&ltc_prng_mutex);
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29 for (x = 0; x < TAB_SIZE; x++) {
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30 if (XMEMCMP(&prng_descriptor[x], prng, sizeof(struct ltc_prng_descriptor)) == 0) {
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31 prng_descriptor[x].name = NULL;
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32 LTC_MUTEX_UNLOCK(&ltc_prng_mutex);
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33 return CRYPT_OK;
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34 }
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35 }
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36 LTC_MUTEX_UNLOCK(&ltc_prng_mutex);
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37 return CRYPT_ERROR;
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38 }
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39
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40 /* ref: $Format:%D$ */
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41 /* git commit: $Format:%H$ */
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42 /* commit time: $Format:%ai$ */