// 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;
}
Messung V0.5 in Prozent C=98 H=100 G=98
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-09-28)
¤
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