Revision 1e128e535256fff3868f86f16d273358d5c948dc authored by Alexander Potapenko on 21 November 2019, 15:52:59 UTC, committed by Alexander Potapenko on 28 October 2021, 12:41:08 UTC
Make KMSAN usable by adding the necessary Kconfig bits. Signed-off-by: Alexander Potapenko <glider@google.com> --- Link: https://linux-review.googlesource.com/id/I1d295ce8159ce15faa496d20089d953a919c125e
1 parent 00eca6f
compat.c
// SPDX-License-Identifier: GPL-2.0
/*
* 32 bit compatibility code for System V IPC
*
* Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
* Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
* Copyright (C) 1999 Arun Sharma <arun.sharma@intel.com>
* Copyright (C) 2000 VA Linux Co
* Copyright (C) 2000 Don Dugger <n0ano@valinux.com>
* Copyright (C) 2000 Hewlett-Packard Co.
* Copyright (C) 2000 David Mosberger-Tang <davidm@hpl.hp.com>
* Copyright (C) 2000 Gerhard Tonn (ton@de.ibm.com)
* Copyright (C) 2000-2002 Andi Kleen, SuSE Labs (x86-64 port)
* Copyright (C) 2000 Silicon Graphics, Inc.
* Copyright (C) 2001 IBM
* Copyright (C) 2004 IBM Deutschland Entwicklung GmbH, IBM Corporation
* Copyright (C) 2004 Arnd Bergmann (arnd@arndb.de)
*
* This code is collected from the versions for sparc64, mips64, s390x, ia64,
* ppc64 and x86_64, all of which are based on the original sparc64 version
* by Jakub Jelinek.
*
*/
#include <linux/compat.h>
#include <linux/errno.h>
#include <linux/highuid.h>
#include <linux/init.h>
#include <linux/msg.h>
#include <linux/shm.h>
#include <linux/syscalls.h>
#include <linux/ptrace.h>
#include <linux/mutex.h>
#include <linux/uaccess.h>
#include "util.h"
int get_compat_ipc64_perm(struct ipc64_perm *to,
struct compat_ipc64_perm __user *from)
{
struct compat_ipc64_perm v;
if (copy_from_user(&v, from, sizeof(v)))
return -EFAULT;
to->uid = v.uid;
to->gid = v.gid;
to->mode = v.mode;
return 0;
}
int get_compat_ipc_perm(struct ipc64_perm *to,
struct compat_ipc_perm __user *from)
{
struct compat_ipc_perm v;
if (copy_from_user(&v, from, sizeof(v)))
return -EFAULT;
to->uid = v.uid;
to->gid = v.gid;
to->mode = v.mode;
return 0;
}
void to_compat_ipc64_perm(struct compat_ipc64_perm *to, struct ipc64_perm *from)
{
to->key = from->key;
to->uid = from->uid;
to->gid = from->gid;
to->cuid = from->cuid;
to->cgid = from->cgid;
to->mode = from->mode;
to->seq = from->seq;
}
void to_compat_ipc_perm(struct compat_ipc_perm *to, struct ipc64_perm *from)
{
to->key = from->key;
SET_UID(to->uid, from->uid);
SET_GID(to->gid, from->gid);
SET_UID(to->cuid, from->cuid);
SET_GID(to->cgid, from->cgid);
to->mode = from->mode;
to->seq = from->seq;
}
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