diff options
| author | Herbert Xu <herbert@gondor.apana.org.au> | 2023-08-04 17:24:34 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2023-08-11 19:19:27 +0800 |
| commit | 2a598d0b2800aa23ba51adcf060cec524aaa63b2 (patch) | |
| tree | b7c035f0fa57dab30af2768114f71f64230dac5c /lib/mpi/mpi-inline.h | |
| parent | 9ae4577bc077a7e32c3c7d442c95bc76865c0f17 (diff) | |
crypto: lib - Move mpi into lib/crypto
As lib/mpi is mostly used by crypto code, move it under lib/crypto
so that patches touching it get directed to the right mailing list.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Reviewed-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'lib/mpi/mpi-inline.h')
| -rw-r--r-- | lib/mpi/mpi-inline.h | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/lib/mpi/mpi-inline.h b/lib/mpi/mpi-inline.h deleted file mode 100644 index 980b6b940953..000000000000 --- a/lib/mpi/mpi-inline.h +++ /dev/null @@ -1,109 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ -/* mpi-inline.h - Internal to the Multi Precision Integers - * Copyright (C) 1994, 1996, 1998, 1999 Free Software Foundation, Inc. - * - * This file is part of GnuPG. - * - * Note: This code is heavily based on the GNU MP Library. - * Actually it's the same code with only minor changes in the - * way the data is stored; this is to support the abstraction - * of an optional secure memory allocation which may be used - * to avoid revealing of sensitive data due to paging etc. - * The GNU MP Library itself is published under the LGPL; - * however I decided to publish this code under the plain GPL. - */ - -#ifndef G10_MPI_INLINE_H -#define G10_MPI_INLINE_H - -#ifndef G10_MPI_INLINE_DECL -#define G10_MPI_INLINE_DECL static inline -#endif - -G10_MPI_INLINE_DECL mpi_limb_t -mpihelp_add_1(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr, - mpi_size_t s1_size, mpi_limb_t s2_limb) -{ - mpi_limb_t x; - - x = *s1_ptr++; - s2_limb += x; - *res_ptr++ = s2_limb; - if (s2_limb < x) { /* sum is less than the left operand: handle carry */ - while (--s1_size) { - x = *s1_ptr++ + 1; /* add carry */ - *res_ptr++ = x; /* and store */ - if (x) /* not 0 (no overflow): we can stop */ - goto leave; - } - return 1; /* return carry (size of s1 to small) */ - } - -leave: - if (res_ptr != s1_ptr) { /* not the same variable */ - mpi_size_t i; /* copy the rest */ - for (i = 0; i < s1_size - 1; i++) - res_ptr[i] = s1_ptr[i]; - } - return 0; /* no carry */ -} - -G10_MPI_INLINE_DECL mpi_limb_t -mpihelp_add(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr, mpi_size_t s1_size, - mpi_ptr_t s2_ptr, mpi_size_t s2_size) -{ - mpi_limb_t cy = 0; - - if (s2_size) - cy = mpihelp_add_n(res_ptr, s1_ptr, s2_ptr, s2_size); - - if (s1_size - s2_size) - cy = mpihelp_add_1(res_ptr + s2_size, s1_ptr + s2_size, - s1_size - s2_size, cy); - return cy; -} - -G10_MPI_INLINE_DECL mpi_limb_t -mpihelp_sub_1(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr, - mpi_size_t s1_size, mpi_limb_t s2_limb) -{ - mpi_limb_t x; - - x = *s1_ptr++; - s2_limb = x - s2_limb; - *res_ptr++ = s2_limb; - if (s2_limb > x) { - while (--s1_size) { - x = *s1_ptr++; - *res_ptr++ = x - 1; - if (x) - goto leave; - } - return 1; - } - -leave: - if (res_ptr != s1_ptr) { - mpi_size_t i; - for (i = 0; i < s1_size - 1; i++) - res_ptr[i] = s1_ptr[i]; - } - return 0; -} - -G10_MPI_INLINE_DECL mpi_limb_t -mpihelp_sub(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr, mpi_size_t s1_size, - mpi_ptr_t s2_ptr, mpi_size_t s2_size) -{ - mpi_limb_t cy = 0; - - if (s2_size) - cy = mpihelp_sub_n(res_ptr, s1_ptr, s2_ptr, s2_size); - - if (s1_size - s2_size) - cy = mpihelp_sub_1(res_ptr + s2_size, s1_ptr + s2_size, - s1_size - s2_size, cy); - return cy; -} - -#endif /*G10_MPI_INLINE_H */ |