diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-23 18:49:06 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-23 18:49:06 -0700 |
commit | e05644e17e744315bce12b0948cdc36910b9a76e (patch) | |
tree | 92d62ff59c57f991ef6b5c3cc2c2dcd205946a11 /lib/mpi/mpi-scan.c | |
parent | 97e7292ab5ccd30a13c3612835535fc3f3e59715 (diff) | |
parent | 663728418e3494f8e4a82f5d1b2f23c22d11be35 (diff) |
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem updates from James Morris:
"Nothing groundbreaking for this kernel, just cleanups and fixes, and a
couple of Smack enhancements."
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (21 commits)
Smack: Maintainer Record
Smack: don't show empty rules when /smack/load or /smack/load2 is read
Smack: user access check bounds
Smack: onlycap limits on CAP_MAC_ADMIN
Smack: fix smack_new_inode bogosities
ima: audit is compiled only when enabled
ima: ima_initialized is set only if successful
ima: add policy for pseudo fs
ima: remove unused cleanup functions
ima: free securityfs violations file
ima: use full pathnames in measurement list
security: Fix nommu build.
samples: seccomp: add .gitignore for untracked executables
tpm: check the chip reference before using it
TPM: fix memleak when register hardware fails
TPM: chip disabled state erronously being reported as error
MAINTAINERS: TPM maintainers' contacts update
Merge branches 'next-queue' and 'next' into next
Remove unused code from MPI library
Revert "crypto: GnuPG based MPI lib - additional sources (part 4)"
...
Diffstat (limited to 'lib/mpi/mpi-scan.c')
-rw-r--r-- | lib/mpi/mpi-scan.c | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/lib/mpi/mpi-scan.c b/lib/mpi/mpi-scan.c deleted file mode 100644 index b2da5ad9619..00000000000 --- a/lib/mpi/mpi-scan.c +++ /dev/null @@ -1,136 +0,0 @@ -/* mpi-scan.c - MPI functions - * Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc. - * - * This file is part of GnuPG. - * - * GnuPG is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * GnuPG is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA - */ - -#include "mpi-internal.h" -#include "longlong.h" - -/**************** - * Scan through an mpi and return byte for byte. a -1 is returned to indicate - * the end of the mpi. Scanning is done from the lsb to the msb, returned - * values are in the range of 0 .. 255. - * - * FIXME: This code is VERY ugly! - */ -int mpi_getbyte(const MPI a, unsigned idx) -{ - int i, j; - unsigned n; - mpi_ptr_t ap; - mpi_limb_t limb; - - ap = a->d; - for (n = 0, i = 0; i < a->nlimbs; i++) { - limb = ap[i]; - for (j = 0; j < BYTES_PER_MPI_LIMB; j++, n++) - if (n == idx) - return (limb >> j * 8) & 0xff; - } - return -1; -} - -/**************** - * Put a value at position IDX into A. idx counts from lsb to msb - */ -void mpi_putbyte(MPI a, unsigned idx, int xc) -{ - int i, j; - unsigned n; - mpi_ptr_t ap; - mpi_limb_t limb, c; - - c = xc & 0xff; - ap = a->d; - for (n = 0, i = 0; i < a->alloced; i++) { - limb = ap[i]; - for (j = 0; j < BYTES_PER_MPI_LIMB; j++, n++) - if (n == idx) { -#if BYTES_PER_MPI_LIMB == 4 - if (j == 0) - limb = (limb & 0xffffff00) | c; - else if (j == 1) - limb = (limb & 0xffff00ff) | (c << 8); - else if (j == 2) - limb = (limb & 0xff00ffff) | (c << 16); - else - limb = (limb & 0x00ffffff) | (c << 24); -#elif BYTES_PER_MPI_LIMB == 8 - if (j == 0) - limb = (limb & 0xffffffffffffff00) | c; - else if (j == 1) - limb = - (limb & 0xffffffffffff00ff) | (c << - 8); - else if (j == 2) - limb = - (limb & 0xffffffffff00ffff) | (c << - 16); - else if (j == 3) - limb = - (limb & 0xffffffff00ffffff) | (c << - 24); - else if (j == 4) - limb = - (limb & 0xffffff00ffffffff) | (c << - 32); - else if (j == 5) - limb = - (limb & 0xffff00ffffffffff) | (c << - 40); - else if (j == 6) - limb = - (limb & 0xff00ffffffffffff) | (c << - 48); - else - limb = - (limb & 0x00ffffffffffffff) | (c << - 56); -#else -#error please enhance this function, its ugly - i know. -#endif - if (a->nlimbs <= i) - a->nlimbs = i + 1; - ap[i] = limb; - return; - } - } - log_bug("index out of range\n"); -} - -/**************** - * Count the number of zerobits at the low end of A - */ -unsigned mpi_trailing_zeros(const MPI a) -{ - unsigned n, count = 0; - - for (n = 0; n < a->nlimbs; n++) { - if (a->d[n]) { - unsigned nn; - mpi_limb_t alimb = a->d[n]; - - count_trailing_zeros(nn, alimb); - count += nn; - break; - } - count += BITS_PER_MPI_LIMB; - } - return count; - -} |