WIP
patch was upstreamed Change-Id: I30adcf7827f09f2b22428821678f789501736864
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Upstream-Status: Pending
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The dropbearkey utility built in x32 abi format, when generating ssh
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keys, was getting lost in the infinite loop.
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This patch fixes the issue by fixing types of variables and
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parameters of functions used in the code, which were getting
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undesired size, when compiled with the x32 abi toolchain.
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2013/05/23
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Received this fix from H J Lu.
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Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>
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# HG changeset patch
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# User H.J. Lu <hjl.tools@gmail.com>
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# Date 1369344079 25200
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# Node ID a10a1c46b857cc8a3923c3bb6d1504aa25b6052f
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# Parent e76614145aea67f66e4a4257685c771efba21aa1
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Typdef mp_digit to unsigned long long for MP_64BIT
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When GCC is used with MP_64BIT, we should typedef mp_digit to unsigned
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long long instead of unsigned long since for x32, unsigned long is
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32-bit and unsigned long long is 64-bit and it is safe to use unsigned
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long long for 64-bit integer with GCC.
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diff -r e76614145aea -r a10a1c46b857 libtommath/tommath.h
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--- a/libtommath/tommath.h Thu Apr 18 22:57:47 2013 +0800
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+++ b/libtommath/tommath.h Thu May 23 14:21:19 2013 -0700
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@@ -73,7 +73,7 @@
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typedef signed long long long64;
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#endif
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- typedef unsigned long mp_digit;
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+ typedef unsigned long long mp_digit;
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typedef unsigned long mp_word __attribute__ ((mode(TI)));
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#define DIGIT_BIT 60
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# HG changeset patch
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# User H.J. Lu <hjl.tools@gmail.com>
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# Date 1369344241 25200
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# Node ID c7555a4cb7ded3a88409ba85f4027baa7af5f536
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# Parent a10a1c46b857cc8a3923c3bb6d1504aa25b6052f
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Cast to mp_digit when updating *rho
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There is
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int
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mp_montgomery_setup (mp_int * n, mp_digit * rho)
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We should cast to mp_digit instead of unsigned long when updating
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*rho since mp_digit may be unsigned long long and unsigned long long
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may be different from unsigned long, like in x32.
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diff -r a10a1c46b857 -r c7555a4cb7de libtommath/bn_mp_montgomery_setup.c
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--- a/libtommath/bn_mp_montgomery_setup.c Thu May 23 14:21:19 2013 -0700
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+++ b/libtommath/bn_mp_montgomery_setup.c Thu May 23 14:24:01 2013 -0700
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@@ -48,7 +48,7 @@
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#endif
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/* rho = -1/m mod b */
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- *rho = (unsigned long)(((mp_word)1 << ((mp_word) DIGIT_BIT)) - x) & MP_MASK;
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+ *rho = (mp_digit)(((mp_word)1 << ((mp_word) DIGIT_BIT)) - x) & MP_MASK;
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return MP_OKAY;
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}
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# HG changeset patch
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# User H.J. Lu <hjl.tools@gmail.com>
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# Date 1369344541 25200
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# Node ID 7c656e7071a6412688b2f30a529a9afac6c7bf5a
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# Parent c7555a4cb7ded3a88409ba85f4027baa7af5f536
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Define LTC_FAST_TYPE to unsigned long long for __x86_64__
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We should define LTC_FAST_TYPE to unsigned long long instead of unsigned
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long if __x86_64__ to support x32 where unsigned long long is 64-bit
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and unsigned long is 32-bit.
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diff -r c7555a4cb7de -r 7c656e7071a6 libtomcrypt/src/headers/tomcrypt_cfg.h
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--- a/libtomcrypt/src/headers/tomcrypt_cfg.h Thu May 23 14:24:01 2013 -0700
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+++ b/libtomcrypt/src/headers/tomcrypt_cfg.h Thu May 23 14:29:01 2013 -0700
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@@ -74,7 +74,7 @@
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#define ENDIAN_LITTLE
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#define ENDIAN_64BITWORD
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#define LTC_FAST
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- #define LTC_FAST_TYPE unsigned long
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+ #define LTC_FAST_TYPE unsigned long long
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#endif
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/* detect PPC32 */
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# HG changeset patch
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# User H.J. Lu <hjl.tools@gmail.com>
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# Date 1369344730 25200
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# Node ID a7d4690158fae4ede2c4e5b56233e83730bf38ee
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# Parent 7c656e7071a6412688b2f30a529a9afac6c7bf5a
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Use unsigned long long aas unsigned 64-bit integer for x86-64 GCC
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We should use unsigned long long instead of unsigned long as unsigned
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64-bit integer for x86-64 GCC to support x32 where unsigned long is
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32-bit.
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diff -r 7c656e7071a6 -r a7d4690158fa libtomcrypt/src/headers/tomcrypt_macros.h
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--- a/libtomcrypt/src/headers/tomcrypt_macros.h Thu May 23 14:29:01 2013 -0700
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+++ b/libtomcrypt/src/headers/tomcrypt_macros.h Thu May 23 14:32:10 2013 -0700
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@@ -343,7 +343,7 @@
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/* 64-bit Rotates */
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#if !defined(__STRICT_ANSI__) && defined(__GNUC__) && defined(__x86_64__) && !defined(LTC_NO_ASM)
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-static inline unsigned long ROL64(unsigned long word, int i)
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+static inline unsigned long long ROL64(unsigned long long word, int i)
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{
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asm("rolq %%cl,%0"
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:"=r" (word)
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@@ -351,7 +351,7 @@
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return word;
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}
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-static inline unsigned long ROR64(unsigned long word, int i)
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+static inline unsigned long long ROR64(unsigned long long word, int i)
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{
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asm("rorq %%cl,%0"
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:"=r" (word)
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@@ -361,7 +361,7 @@
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#ifndef LTC_NO_ROLC
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-static inline unsigned long ROL64c(unsigned long word, const int i)
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+static inline unsigned long long ROL64c(unsigned long long word, const int i)
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{
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asm("rolq %2,%0"
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:"=r" (word)
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@@ -369,7 +369,7 @@
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return word;
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}
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-static inline unsigned long ROR64c(unsigned long word, const int i)
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+static inline unsigned long long ROR64c(unsigned long long word, const int i)
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{
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asm("rorq %2,%0"
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:"=r" (word)
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