Mercurial > dropbear
view libtomcrypt/tests/file_test.c @ 1930:299f4f19ba19
Add /usr/sbin and /sbin to default root PATH
When dropbear is used in a very restricted environment (such as in a
initrd), the default user shell is often also very restricted
and doesn't take care of setting the PATH so the user ends up
with the PATH set by dropbear. Unfortunately, dropbear always
sets "/usr/bin:/bin" as default PATH even for the root user
which should have /usr/sbin and /sbin too.
For a concrete instance of this problem, see the "Remote Unlocking"
section in this tutorial: https://paxswill.com/blog/2013/11/04/encrypted-raspberry-pi/
It speaks of a bug in the initramfs script because it's written "blkid"
instead of "/sbin/blkid"... this is just because the scripts from the
initramfs do not expect to have a PATH without the sbin directories and
because dropbear is not setting the PATH appropriately for the root user.
I'm thus suggesting to use the attached patch to fix this misbehaviour (I
did not test it, but it's easy enough). It might seem anecdotic but
multiple Kali users have been bitten by this.
From https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=903403
author | Raphael Hertzog <hertzog@debian.org> |
---|---|
date | Mon, 09 Jul 2018 16:27:53 +0200 |
parents | 6dba84798cd5 |
children |
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. */ /* test file related functions */ #include <tomcrypt_test.h> int file_test(void) { #ifdef LTC_NO_FILE return CRYPT_NOP; #else unsigned char key[32] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F }; unsigned char buf[200]; unsigned long len; const char *fname = "tests/test.key"; FILE *in; int err, isha256, iaes; /* expected results */ unsigned char exp_sha256[32] = { 0x76, 0xEC, 0x7F, 0xAE, 0xBD, 0xC4, 0x2A, 0x4D, 0xE3, 0x5C, 0xA7, 0x00, 0x24, 0xC2, 0xD2, 0x73, 0xE9, 0xF7, 0x85, 0x6C, 0xA6, 0x16, 0x12, 0xE8, 0x9F, 0x5F, 0x66, 0x35, 0x0B, 0xA8, 0xCF, 0x5F }; isha256 = find_hash("sha256"); iaes = find_cipher("aes"); len = sizeof(buf); if ((in = fopen(fname, "rb")) == NULL) return CRYPT_FILE_NOTFOUND; err = hash_filehandle(isha256, in, buf, &len); fclose(in); if (err != CRYPT_OK) return err; if (compare_testvector(buf, len, exp_sha256, 32, "hash_filehandle", 1)) return 1; len = sizeof(buf); if ((err = hash_file(isha256, fname, buf, &len)) != CRYPT_OK) return err; if (compare_testvector(buf, len, exp_sha256, 32, "hash_file", 1)) return 1; #ifdef LTC_HMAC { unsigned char exp_hmacsha256[32] = { 0xE4, 0x07, 0x74, 0x95, 0xF1, 0xF8, 0x5B, 0xB5, 0xF1, 0x4F, 0x7D, 0x4F, 0x59, 0x8E, 0x4B, 0xBC, 0x8F, 0x68, 0xCF, 0xBA, 0x2E, 0xAD, 0xC4, 0x63, 0x9D, 0x7F, 0x02, 0x99, 0x8C, 0x08, 0xAC, 0xC0 }; len = sizeof(buf); if ((err = hmac_file(isha256, fname, key, 32, buf, &len)) != CRYPT_OK) return err; if (compare_testvector(buf, len, exp_hmacsha256, 32, "hmac_file", 1)) return 1; } #endif #ifdef LTC_OMAC { unsigned char exp_omacaes[16] = { 0x50, 0xB4, 0x6C, 0x62, 0xE9, 0xCA, 0x48, 0xFC, 0x38, 0x8D, 0xF4, 0xA2, 0x7D, 0x6A, 0x1E, 0xD8 }; len = sizeof(buf); if ((err = omac_file(iaes, key, 32, fname, buf, &len)) != CRYPT_OK) return err; if (compare_testvector(buf, len, exp_omacaes, 16, "omac_file", 1)) return 1; } #endif #ifdef LTC_PMAC { unsigned char exp_pmacaes[16] = { 0x7D, 0x65, 0xF0, 0x75, 0x4F, 0x8D, 0xE2, 0xB0, 0xE4, 0xFA, 0x54, 0x4E, 0x45, 0x01, 0x36, 0x1B }; len = sizeof(buf); if ((err = pmac_file(iaes, key, 32, fname, buf, &len)) != CRYPT_OK) return err; if (compare_testvector(buf, len, exp_pmacaes, 16, "pmac_file", 1)) return 1; } #endif #ifdef LTC_XCBC { unsigned char exp_xcbcaes[16] = { 0x9C, 0x73, 0xA2, 0xD7, 0x90, 0xA5, 0x86, 0x25, 0x4D, 0x3C, 0x8A, 0x6A, 0x24, 0x6D, 0xD1, 0xAB }; len = sizeof(buf); if ((err = xcbc_file(iaes, key, 32, fname, buf, &len)) != CRYPT_OK) return err; if (compare_testvector(buf, len, exp_xcbcaes, 16, "xcbc_file", 1)) return 1; } #endif #ifdef LTC_F9_MODE { unsigned char exp_f9aes[16] = { 0x6B, 0x6A, 0x18, 0x34, 0x13, 0x8E, 0x01, 0xEF, 0x33, 0x8E, 0x7A, 0x3F, 0x5B, 0x9A, 0xA6, 0x7A }; len = sizeof(buf); if ((err = f9_file(iaes, key, 32, fname, buf, &len)) != CRYPT_OK) return err; if (compare_testvector(buf, len, exp_f9aes, 16, "f9_file", 1)) return 1; } #endif #ifdef LTC_POLY1305 { unsigned char exp_poly1305[16] = { 0xD0, 0xC7, 0xFB, 0x13, 0xA8, 0x87, 0x84, 0x23, 0x21, 0xCC, 0xA9, 0x43, 0x81, 0x18, 0x75, 0xBE }; len = sizeof(buf); if ((err = poly1305_file(fname, key, 32, buf, &len)) != CRYPT_OK) return err; if (compare_testvector(buf, len, exp_poly1305, 16, "poly1305_file", 1)) return 1; } #endif #ifdef LTC_BLAKE2SMAC { unsigned char exp_blake2smac[16] = { 0x4f, 0x94, 0x45, 0x15, 0xcd, 0xd1, 0xca, 0x02, 0x1a, 0x0c, 0x7a, 0xe4, 0x6d, 0x2f, 0xe8, 0xb3 }; len = 16; if ((err = blake2smac_file(fname, key, 32, buf, &len)) != CRYPT_OK) return err; if (compare_testvector(buf, len, exp_blake2smac, 16, "exp_blake2smac_file", 1)) return 1; } #endif #ifdef LTC_BLAKE2BMAC { unsigned char exp_blake2bmac[16] = { 0xdf, 0x0e, 0x7a, 0xab, 0x96, 0x6b, 0x75, 0x4e, 0x52, 0x6a, 0x43, 0x96, 0xbd, 0xef, 0xab, 0x44 }; len = 16; if ((err = blake2bmac_file(fname, key, 32, buf, &len)) != CRYPT_OK) return err; if (compare_testvector(buf, len, exp_blake2bmac, 16, "exp_blake2bmac_file", 1)) return 1; } #endif return CRYPT_OK; #endif } /* ref: $Format:%D$ */ /* git commit: $Format:%H$ */ /* commit time: $Format:%ai$ */