// 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;
}
/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/drm-misc/log/'>root</a>/<a href='/drm-misc/log/security'>security</a>/<a href='/drm-misc/log/security/Kconfig.hardening'>Kconfig.hardening</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/drm-misc/log/security/Kconfig.hardening?showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
<tr><td><span title='2024-09-28 13:56:03 -0700'>2024-09-28</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=dd3a7ee91e0ce0b03d22e974a79e8247cc99959b'>hardening: Adjust dependencies in selection of MODVERSIONS</a></td><td>Nathan Chancellor</td><td>1</td><td><span class='deletions'>-2</span>/<span class='insertions'>+2</span></td></tr>
<tr><td><span title='2024-06-15 10:43:05 -0700'>2024-06-15</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=384a746bb55960aa5ffb3a67de08f11fc2f51042'>Revert "mm: init_mlocked_on_free_v3"</a></td><td>David Hildenbrand</td><td>1</td><td><span class='deletions'>-15</span>/<span class='insertions'>+0</span></td></tr>
<tr><td><span title='2024-04-25 20:56:29 -0700'>2024-04-25</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=ba42b524a0408b5f92bd41edaee1ea84309ab9ae'>mm: init_mlocked_on_free_v3</a></td><td>York Jasper Niebuhr</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+15</span></td></tr>
<tr><td><span title='2023-08-15 14:57:25 -0700'>2023-08-15</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=aa9f10d57056cea51d41283d3785bccbbb9f459e'>hardening: Move BUG_ON_DATA_CORRUPTION to hardening options</a></td><td>Marco Elver</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+10</span></td></tr>
<tr><td><span title='2023-08-15 14:57:25 -0700'>2023-08-15</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=aebc7b0d8d91bbc69e976909963046bc48bca4fd'>list: Introduce CONFIG_LIST_HARDENED</a></td><td>Marco Elver</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+13</span></td></tr>
<tr><td><span title='2023-02-08 15:26:58 -0800'>2023-02-08</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=78f7a3fd6dc66cb788c21d7705977ed13c879351'>randstruct: disable Clang 15 support</a></td><td>Eric Biggers</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+3</span></td></tr>
<tr><td><span title='2022-12-14 16:05:36 -0800'>2022-12-14</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=d6a9fb87e9d18f3394a9845546bbe868efdccfd2'>security: Restrict CONFIG_ZERO_CALL_USED_REGS to gcc or clang &gt; 15.0.6</a></td><td>Nathan Chancellor</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+3</span></td></tr>
<tr><td><span title='2022-10-10 17:53:04 -0700'>2022-10-10</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=27bc50fc90647bbf7b734c3fc306a5e61350da53'>Merge tag 'mm-stable-2022-10-08' of git://git.kernel.org/pub/scm/linux/kernel...</a></td><td>Linus Torvalds</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+4</span></td></tr>
<tr><td><span title='2022-10-03 14:03:23 -0700'>2022-10-03</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=42eaa27d9e7aafb4049fc3a5b02005a917013e65'>security: kmsan: fix interoperability with auto-initialization</a></td><td>Alexander Potapenko</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+4</span></td></tr>
<tr><td><span title='2022-09-29 23:05:00 -0700'>2022-09-29</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=607e57c6c62c00965ae276902c166834ce73014a'>hardening: Remove Clang's enable flag for -ftrivial-auto-var-init=zero</a></td><td>Kees Cook</td><td>1</td><td><span class='deletions'>-4</span>/<span class='insertions'>+10</span></td></tr>
<tr><td><span title='2022-05-08 01:33:07 -0700'>2022-05-08</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=035f7f87b7295a342577aebd7b5b451f1e2a353c'>randstruct: Enable Clang support</a></td><td>Kees Cook</td><td>1</td><td><span class='deletions'>-2</span>/<span class='insertions'>+12</span></td></tr>
<tr><td><span title='2022-05-08 01:33:07 -0700'>2022-05-08</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=be2b34fa9be31c60a95989f984c9a5d40cd781b6'>randstruct: Move seed generation into scripts/basic/</a></td><td>Kees Cook</td><td>1</td><td><span class='deletions'>-4</span>/<span class='insertions'>+5</span></td></tr>
<tr><td><span title='2022-05-08 01:33:06 -0700'>2022-05-08</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=595b893e2087de306d0781795fb8ec47873596a6'>randstruct: Reorganize Kconfigs and attribute macros</a></td><td>Kees Cook</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+62</span></td></tr>
<tr><td><span title='2022-02-06 10:49:57 -0800'>2022-02-06</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=f154066b61dfde618d98fdafc8cadde076c7f222'>gcc-plugins/stackleak: Provide verbose mode</a></td><td>Kees Cook</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+10</span></td></tr>
<tr><td><span title='2021-10-21 08:41:38 -0700'>2021-10-21</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=8bd51a2ba3c3bb81a693fff17e983d02d914c14c'>gcc-plugins: Explicitly document purpose and deprecation schedule</a></td><td>Kees Cook</td><td>1</td><td><span class='deletions'>-3</span>/<span class='insertions'>+6</span></td></tr>
<tr><td><span title='2021-09-25 08:22:59 -0700'>2021-09-25</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=f02003c860d921171be4a27e2893766eb3bc6871'>hardening: Avoid harmless Clang option under CONFIG_INIT_STACK_ALL_ZERO</a></td><td>Kees Cook</td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+4</span></td></tr>
<tr><td><span title='2021-07-20 23:02:59 -0700'>2021-07-20</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=dcb7c0b9461c2a30f6616262736daac6f01ecb09'>hardening: Clarify Kconfig text for auto-var-init</a></td><td>Kees Cook</td><td>1</td><td><span class='deletions'>-20</span>/<span class='insertions'>+32</span></td></tr>
<tr><td><span title='2021-07-20 15:10:42 -0700'>2021-07-20</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=a82adfd5c7cb4b8bb37ef439aed954f9972bb618'>hardening: Introduce CONFIG_ZERO_CALL_USED_REGS</a></td><td>Kees Cook</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+19</span></td></tr>
<tr><td><span title='2021-04-16 16:10:36 -0700'>2021-04-16</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=02c587733c8161355a43e6e110c2e29bd0acff72'>kasan: remove redundant config option</a></td><td>Walter Wu</td><td>1</td><td><span class='deletions'>-2</span>/<span class='insertions'>+2</span></td></tr>
<tr><td><span title='2020-06-16 02:06:23 -0700'>2020-06-16</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=f0fe00d4972a8cd4b98cc2c29758615e4d51cdfe'>security: allow using Clang's zero initialization for stack variables</a></td><td>glider@google.com</td><td>1</td><td><span class='deletions'>-4</span>/<span class='insertions'>+25</span></td></tr>
<tr><td><span title='2019-07-28 12:33:15 -0700'>2019-07-28</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=c622fc5f54cb0c7ea2e6fedba27ba533b97657d8'>Merge tag 'meminit-v5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git...</a></td><td>Linus Torvalds</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+7</span></td></tr>
<tr><td><span title='2019-07-25 16:16:12 -0700'>2019-07-25</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=173e6ee21e2b3f477f07548a79c43b8d9cfbb37d'>structleak: disable STRUCTLEAK_BYREF in combination with KASAN_STACK</a></td><td>Arnd Bergmann</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+7</span></td></tr>
<tr><td><span title='2019-07-12 11:05:46 -0700'>2019-07-12</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=6471384af2a6530696fc0203bafe4de41a23c9ef'>mm: security: introduce init_on_alloc=1 and init_on_free=1 boot options</a></td><td>Alexander Potapenko</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+29</span></td></tr>
<tr><td><span title='2019-05-21 10:50:46 +0200'>2019-05-21</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=ec8f24b7faaf3d4799a7c3f4c1b87f6b02778ad1'>treewide: Add SPDX license identifier - Makefile/Kconfig</a></td><td>Thomas Gleixner</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+1</span></td></tr>
<tr><td><span title='2019-04-24 14:00:56 -0700'>2019-04-24</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=709a972efb01efaeb97cad1adc87fe400119c8ab'>security: Implement Clang's stack initialization</a></td><td>Kees Cook</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+14</span></td></tr>
<tr><td><span title='2019-04-24 14:00:56 -0700'>2019-04-24</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=b6a6a3772d20b8552e703bb2a651760a22167cf6'>security: Move stackleak config to Kconfig.hardening</a></td><td>Kees Cook</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+57</span></td></tr>
<tr><td><span title='2019-04-24 13:45:49 -0700'>2019-04-24</span></td><td><a href='/drm-misc/commit/security/Kconfig.hardening?id=9f671e58159adea641f76c56d1f0bbdcb3c524ff'>security: Create "kernel hardening" config area</a></td><td>Kees Cook</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+93</span></td></tr>