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This patch fixes lack of license, otherwise mpi.ko taints kernel.
Signed-off-by: Konstantin Khlebnikov <[email protected]>
Signed-off-by: David Howells <[email protected]>
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Remove the compile warning for __udiv_qrnnd not having a prototype.
Use the __builtin_alpha_umulh introduced in gcc 4.0.
Reviewed-and-Tested-by: Matt Turner <[email protected]>
Signed-off-by: Matt Turner <[email protected]>
Signed-off-by: Richard Henderson <[email protected]>
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'EXTRA_FLAGS=-W'.
For 'while' looping, need stop when 'nbytes == 0', or will cause issue.
('nbytes' is size_t which is always bigger or equal than zero).
The related warning: (with EXTRA_CFLAGS=-W)
lib/mpi/mpicoder.c:40:2: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits]
Signed-off-by: Chen Gang <[email protected]>
Cc: Rusty Russell <[email protected]>
Cc: David Howells <[email protected]>
Cc: James Morris <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Acked-by: David Howells <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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The umul_ppmm() macro for parisc uses the xmpyu assembler statement
which does calculation via a floating point register.
But usage of floating point registers inside the Linux kernel are not
allowed and gcc will stop compilation due to the -mdisable-fpregs
compiler option.
Fix this by disabling the umul_ppmm() and udiv_qrnnd() macros. The
mpilib will then use the generic built-in implementations instead.
Signed-off-by: Helge Deller <[email protected]>
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Remove MIN, MAX and ABS macros that are duplicates kernel's native
implementation.
Signed-off-by: Andy Shevchenko <[email protected]>
Signed-off-by: James Morris <[email protected]>
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Since 4.4 GCC on MIPS no longer recognizes the "h" constraint,
leading to this build failure:
CC lib/mpi/generic_mpih-mul1.o
lib/mpi/generic_mpih-mul1.c: In function 'mpihelp_mul_1':
lib/mpi/generic_mpih-mul1.c:50:3: error: impossible constraint in 'asm'
This patch updates MPI with the latest umul_ppm implementations for MIPS.
Signed-off-by: Manuel Lauss <[email protected]>
Cc: Linux-MIPS <[email protected]>
Cc: Dmitry Kasatkin <[email protected]>
Cc: James Morris <[email protected]>
Patchwork: https://patchwork.linux-mips.org/patch/4612/
Signed-off-by: Ralf Baechle <[email protected]>
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Provide a function to read raw data of a predetermined size into an MPI rather
than expecting the size to be encoded within the data. The data is assumed to
represent an unsigned integer, and the resulting MPI will be positive.
The function looks like this:
MPI mpi_read_raw_data(const void *, size_t);
This is useful for reading ASN.1 integer primitives where the length is encoded
in the ASN.1 metadata.
Signed-off-by: David Howells <[email protected]>
Signed-off-by: Rusty Russell <[email protected]>
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Reinstate and export mpi_cmp() and mpi_cmp_ui() from the MPI library for use by
RSA signature verification as per RFC3447 section 5.2.2 step 1.
Signed-off-by: David Howells <[email protected]>
Signed-off-by: Rusty Russell <[email protected]>
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Provide count_leading/trailing_zeros() macros based on extant arch bit scanning
functions rather than reimplementing from scratch in MPILIB.
Whilst we're at it, turn count_foo_zeros(n, x) into n = count_foo_zeros(x).
Also move the definition to asm-generic as other people may be interested in
using it.
Signed-off-by: David Howells <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Dmitry Kasatkin <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Signed-off-by: Rusty Russell <[email protected]>
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MPI library is used by RSA verification implementation.
Few files contains functions which are never called.
James Morris has asked to remove all of them.
Signed-off-by: Dmitry Kasatkin <[email protected]>
Requested-by: James Morris <[email protected]>
Signed-off-by: James Morris <[email protected]>
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This reverts commit 7e8dec918ef8e0f68b4937c3c50fa57002077a4d.
RSA verification implementation does not use this code.
James Morris has asked to remove that.
Signed-off-by: Dmitry Kasatkin <[email protected]>
Requested-by: James Morris <[email protected]>
Signed-off-by: James Morris <[email protected]>
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At the start of the function we assign 'a->d' to 'ap'. Then we use the
RESIZE_IF_NEEDED macro on 'a' - this may free 'a->d' and replace it
with newly allocaetd storage. In that case, we'll be operating on
freed memory further down in the function when we index into 'ap[]'.
Since we don't actually need 'ap' until after the use of the
RESIZE_IF_NEEDED macro we can just delay the assignment to it until
after we've potentially resized, thus avoiding the issue.
While I was there anyway I also changed the integer variable 'n' to be
const. It might as well be since we only assign to it once and use it
as a constant, and then the compiler will tell us if we ever assign to
it in the future.
Signed-off-by: Jesper Juhl <[email protected]>
Acked-by: Dmitry Kasatkin <[email protected]>
Signed-off-by: James Morris <[email protected]>
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This copy of longlong.h is extremely dated and results in compile
errors on sparc32 when MPILIB is enabled, copy over the more uptodate
implementation from arch/sparc/math/sfp-util_32.h
Reported-by: Al Viro <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: James Morris <[email protected]>
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Both sparc 32-bit's software divide assembler and MPILIB provide
clz_tab[] with identical contents.
Break it out into a seperate object file and select it when
SPARC32 or MPILIB is set.
Reported-by: Al Viro <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: James Morris <[email protected]>
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Added missing NULL check after mpi_alloc_limb_space().
Signed-off-by: Dmitry Kasatkin <[email protected]>
Reviewed-by: Tetsuo Handa <[email protected]>
Signed-off-by: James Morris <[email protected]>
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Comment explains that existing clients do not call this function
with dsize == 0, which means that 1/0 should not happen.
Signed-off-by: Dmitry Kasatkin <[email protected]>
Reviewed-by: Tetsuo Handa <[email protected]>
Signed-off-by: James Morris <[email protected]>
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Buggy client might pass zero nlimbs which is meaningless.
Added check for zero length.
Signed-off-by: Dmitry Kasatkin <[email protected]>
Reviewed-by: Tetsuo Handa <[email protected]>
Signed-off-by: James Morris <[email protected]>
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do_encode_md() and mpi_get_keyid() are not parts of mpi library.
They were used early versions of gnupg and in digsig project,
but they are not used neither here nor there anymore.
Signed-off-by: Dmitry Kasatkin <[email protected]>
Reviewed-by: Tetsuo Handa <[email protected]>
Signed-off-by: James Morris <[email protected]>
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Divisor length should not be 0.
Signed-off-by: Dmitry Kasatkin <[email protected]>
Reviewed-by: Tetsuo Handa <[email protected]>
Signed-off-by: James Morris <[email protected]>
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Definitely better to return error code than to divide by zero.
Signed-off-by: Dmitry Kasatkin <[email protected]>
Reviewed-by: Tetsuo Handa <[email protected]>
Signed-off-by: James Morris <[email protected]>
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MPI_NULL is replaced with normal NULL.
Signed-off-by: Dmitry Kasatkin <[email protected]>
Reviewed-by: Tetsuo Handa <[email protected]>
Signed-off-by: James Morris <[email protected]>
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Added missing NULL check after mpi_alloc().
Signed-off-by: Dmitry Kasatkin <[email protected]>
Reviewed-by: Tetsuo Handa <[email protected]>
Signed-off-by: James Morris <[email protected]>
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Add a missing ENOMEM check.
Signed-off-by: David Howells <[email protected]>
Acked-by: Mimi Zohar <[email protected]>
Signed-off-by: James Morris <[email protected]>
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We can't call mpi_free() on the elements if the first kzalloc() fails.
Signed-off-by: Dan Carpenter <[email protected]>
Signed-off-by: Dmitry Kasatkin <[email protected]>
Signed-off-by: James Morris <[email protected]>
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Adds the multi-precision-integer maths library which was originally taken
from GnuPG and ported to the kernel by (among others) David Howells.
This version is taken from Fedora kernel 2.6.32-71.14.1.el6.
The difference is that checkpatch reported errors and warnings have been fixed.
This library is used to implemenet RSA digital signature verification
used in IMA/EVM integrity protection subsystem.
Due to patch size limitation, the patch is divided into 4 parts.
This code is unnecessary for RSA digital signature verification,
but for completeness it is included here and can be compiled,
if CONFIG_MPILIB_EXTRA is enabled.
Signed-off-by: Dmitry Kasatkin <[email protected]>
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Adds the multi-precision-integer maths library which was originally taken
from GnuPG and ported to the kernel by (among others) David Howells.
This version is taken from Fedora kernel 2.6.32-71.14.1.el6.
The difference is that checkpatch reported errors and warnings have been fixed.
This library is used to implemenet RSA digital signature verification
used in IMA/EVM integrity protection subsystem.
Due to patch size limitation, the patch is divided into 4 parts.
Signed-off-by: Dmitry Kasatkin <[email protected]>
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Adds the multi-precision-integer maths library which was originally taken
from GnuPG and ported to the kernel by (among others) David Howells.
This version is taken from Fedora kernel 2.6.32-71.14.1.el6.
The difference is that checkpatch reported errors and warnings have been fixed.
This library is used to implemenet RSA digital signature verification
used in IMA/EVM integrity protection subsystem.
Due to patch size limitation, the patch is divided into 4 parts.
Signed-off-by: Dmitry Kasatkin <[email protected]>
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Adds the multi-precision-integer maths library which was originally taken
from GnuPG and ported to the kernel by (among others) David Howells.
This version is taken from Fedora kernel 2.6.32-71.14.1.el6.
The difference is that checkpatch reported errors and warnings have been fixed.
This library is used to implemenet RSA digital signature verification
used in IMA/EVM integrity protection subsystem.
Due to patch size limitation, the patch is divided into 4 parts.
Signed-off-by: Dmitry Kasatkin <[email protected]>
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