1 files changed, 0 insertions, 330 deletions
diff --git a/lib/mpi/mpiutil.c b/lib/mpi/mpiutil.c
deleted file mode 100644
index aa8c46544af8..000000000000
--- a/lib/mpi/mpiutil.c
+++ /dev/null
@@ -1,330 +0,0 @@
-/* mpiutil.ac  -  Utility functions for MPI
- * Copyright (C) 1998, 1999 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"
-
-/* Constants allocated right away at startup.  */
-static MPI constants[MPI_NUMBER_OF_CONSTANTS];
-
-/* Initialize the MPI subsystem.  This is called early and allows to
- * do some initialization without taking care of threading issues.
- */
-static int __init mpi_init(void)
-{
-	int idx;
-	unsigned long value;
-
-	for (idx = 0; idx < MPI_NUMBER_OF_CONSTANTS; idx++) {
-		switch (idx) {
-		case MPI_C_ZERO:
-			value = 0;
-			break;
-		case MPI_C_ONE:
-			value = 1;
-			break;
-		case MPI_C_TWO:
-			value = 2;
-			break;
-		case MPI_C_THREE:
-			value = 3;
-			break;
-		case MPI_C_FOUR:
-			value = 4;
-			break;
-		case MPI_C_EIGHT:
-			value = 8;
-			break;
-		default:
-			pr_err("MPI: invalid mpi_const selector %d\n", idx);
-			return -EFAULT;
-		}
-		constants[idx] = mpi_alloc_set_ui(value);
-		constants[idx]->flags = (16|32);
-	}
-
-	return 0;
-}
-postcore_initcall(mpi_init);
-
-/* Return a constant MPI descripbed by NO which is one of the
- * MPI_C_xxx macros.  There is no need to copy this returned value; it
- * may be used directly.
- */
-MPI mpi_const(enum gcry_mpi_constants no)
-{
-	if ((int)no < 0 || no > MPI_NUMBER_OF_CONSTANTS)
-		pr_err("MPI: invalid mpi_const selector %d\n", no);
-	if (!constants[no])
-		pr_err("MPI: MPI subsystem not initialized\n");
-	return constants[no];
-}
-EXPORT_SYMBOL_GPL(mpi_const);
-
-/****************
- * Note:  It was a bad idea to use the number of limbs to allocate
- *	  because on a alpha the limbs are large but we normally need
- *	  integers of n bits - So we should change this to bits (or bytes).
- *
- *	  But mpi_alloc is used in a lot of places :-)
- */
-MPI mpi_alloc(unsigned nlimbs)
-{
-	MPI a;
-
-	a = kmalloc(sizeof *a, GFP_KERNEL);
-	if (!a)
-		return a;
-
-	if (nlimbs) {
-		a->d = mpi_alloc_limb_space(nlimbs);
-		if (!a->d) {
-			kfree(a);
-			return NULL;
-		}
-	} else {
-		a->d = NULL;
-	}
-
-	a->alloced = nlimbs;
-	a->nlimbs = 0;
-	a->sign = 0;
-	a->flags = 0;
-	a->nbits = 0;
-	return a;
-}
-EXPORT_SYMBOL_GPL(mpi_alloc);
-
-mpi_ptr_t mpi_alloc_limb_space(unsigned nlimbs)
-{
-	size_t len = nlimbs * sizeof(mpi_limb_t);
-
-	if (!len)
-		return NULL;
-
-	return kmalloc(len, GFP_KERNEL);
-}
-
-void mpi_free_limb_space(mpi_ptr_t a)
-{
-	if (!a)
-		return;
-
-	kfree_sensitive(a);
-}
-
-void mpi_assign_limb_space(MPI a, mpi_ptr_t ap, unsigned nlimbs)
-{
-	mpi_free_limb_space(a->d);
-	a->d = ap;
-	a->alloced = nlimbs;
-}
-
-/****************
- * Resize the array of A to NLIMBS. the additional space is cleared
- * (set to 0) [done by m_realloc()]
- */
-int mpi_resize(MPI a, unsigned nlimbs)
-{
-	void *p;
-
-	if (nlimbs <= a->alloced)
-		return 0;	/* no need to do it */
-
-	if (a->d) {
-		p = kcalloc(nlimbs, sizeof(mpi_limb_t), GFP_KERNEL);
-		if (!p)
-			return -ENOMEM;
-		memcpy(p, a->d, a->alloced * sizeof(mpi_limb_t));
-		kfree_sensitive(a->d);
-		a->d = p;
-	} else {
-		a->d = kcalloc(nlimbs, sizeof(mpi_limb_t), GFP_KERNEL);
-		if (!a->d)
-			return -ENOMEM;
-	}
-	a->alloced = nlimbs;
-	return 0;
-}
-
-void mpi_clear(MPI a)
-{
-	if (!a)
-		return;
-	a->nlimbs = 0;
-	a->flags = 0;
-}
-EXPORT_SYMBOL_GPL(mpi_clear);
-
-void mpi_free(MPI a)
-{
-	if (!a)
-		return;
-
-	if (a->flags & 4)
-		kfree_sensitive(a->d);
-	else
-		mpi_free_limb_space(a->d);
-
-	if (a->flags & ~7)
-		pr_info("invalid flag value in mpi\n");
-	kfree(a);
-}
-EXPORT_SYMBOL_GPL(mpi_free);
-
-/****************
- * Note: This copy function should not interpret the MPI
- *	 but copy it transparently.
- */
-MPI mpi_copy(MPI a)
-{
-	int i;
-	MPI b;
-
-	if (a) {
-		b = mpi_alloc(a->nlimbs);
-		b->nlimbs = a->nlimbs;
-		b->sign = a->sign;
-		b->flags = a->flags;
-		b->flags &= ~(16|32); /* Reset the immutable and constant flags. */
-		for (i = 0; i < b->nlimbs; i++)
-			b->d[i] = a->d[i];
-	} else
-		b = NULL;
-	return b;
-}
-
-/****************
- * This function allocates an MPI which is optimized to hold
- * a value as large as the one given in the argument and allocates it
- * with the same flags as A.
- */
-MPI mpi_alloc_like(MPI a)
-{
-	MPI b;
-
-	if (a) {
-		b = mpi_alloc(a->nlimbs);
-		b->nlimbs = 0;
-		b->sign = 0;
-		b->flags = a->flags;
-	} else
-		b = NULL;
-
-	return b;
-}
-
-
-/* Set U into W and release U.  If W is NULL only U will be released. */
-void mpi_snatch(MPI w, MPI u)
-{
-	if (w) {
-		mpi_assign_limb_space(w, u->d, u->alloced);
-		w->nlimbs = u->nlimbs;
-		w->sign   = u->sign;
-		w->flags  = u->flags;
-		u->alloced = 0;
-		u->nlimbs = 0;
-		u->d = NULL;
-	}
-	mpi_free(u);
-}
-
-
-MPI mpi_set(MPI w, MPI u)
-{
-	mpi_ptr_t wp, up;
-	mpi_size_t usize = u->nlimbs;
-	int usign = u->sign;
-
-	if (!w)
-		w = mpi_alloc(mpi_get_nlimbs(u));
-	RESIZE_IF_NEEDED(w, usize);
-	wp = w->d;
-	up = u->d;
-	MPN_COPY(wp, up, usize);
-	w->nlimbs = usize;
-	w->flags = u->flags;
-	w->flags &= ~(16|32); /* Reset the immutable and constant flags.  */
-	w->sign = usign;
-	return w;
-}
-EXPORT_SYMBOL_GPL(mpi_set);
-
-MPI mpi_set_ui(MPI w, unsigned long u)
-{
-	if (!w)
-		w = mpi_alloc(1);
-	/* FIXME: If U is 0 we have no need to resize and thus possible
-	 * allocating the limbs.
-	 */
-	RESIZE_IF_NEEDED(w, 1);
-	w->d[0] = u;
-	w->nlimbs = u ? 1 : 0;
-	w->sign = 0;
-	w->flags = 0;
-	return w;
-}
-EXPORT_SYMBOL_GPL(mpi_set_ui);
-
-MPI mpi_alloc_set_ui(unsigned long u)
-{
-	MPI w = mpi_alloc(1);
-	w->d[0] = u;
-	w->nlimbs = u ? 1 : 0;
-	w->sign = 0;
-	return w;
-}
-
-/****************
- * Swap the value of A and B, when SWAP is 1.
- * Leave the value when SWAP is 0.
- * This implementation should be constant-time regardless of SWAP.
- */
-void mpi_swap_cond(MPI a, MPI b, unsigned long swap)
-{
-	mpi_size_t i;
-	mpi_size_t nlimbs;
-	mpi_limb_t mask = ((mpi_limb_t)0) - swap;
-	mpi_limb_t x;
-
-	if (a->alloced > b->alloced)
-		nlimbs = b->alloced;
-	else
-		nlimbs = a->alloced;
-	if (a->nlimbs > nlimbs || b->nlimbs > nlimbs)
-		return;
-
-	for (i = 0; i < nlimbs; i++) {
-		x = mask & (a->d[i] ^ b->d[i]);
-		a->d[i] = a->d[i] ^ x;
-		b->d[i] = b->d[i] ^ x;
-	}
-
-	x = mask & (a->nlimbs ^ b->nlimbs);
-	a->nlimbs = a->nlimbs ^ x;
-	b->nlimbs = b->nlimbs ^ x;
-
-	x = mask & (a->sign ^ b->sign);
-	a->sign = a->sign ^ x;
-	b->sign = b->sign ^ x;
-}
-
-MODULE_DESCRIPTION("Multiprecision maths library");
-MODULE_LICENSE("GPL");