forked from luck/tmp_suning_uos_patched
e9ff3990f0
Replace references to system_utsname to the per-process uts namespace where appropriate. This includes things like uname. Changes: Per Eric Biederman's comments, use the per-process uts namespace for ELF_PLATFORM, sunrpc, and parts of net/ipv4/ipconfig.c [jdike@addtoit.com: UML fix] [clg@fr.ibm.com: cleanup] [akpm@osdl.org: build fix] Signed-off-by: Serge E. Hallyn <serue@us.ibm.com> Cc: Kirill Korotaev <dev@openvz.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Herbert Poetzl <herbert@13thfloor.at> Cc: Andrey Savochkin <saw@sw.ru> Signed-off-by: Cedric Le Goater <clg@fr.ibm.com> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
110 lines
2.4 KiB
C
110 lines
2.4 KiB
C
/*
|
|
* Copyright 2003 PathScale, Inc.
|
|
*
|
|
* Licensed under the GPL
|
|
*/
|
|
|
|
#include "linux/linkage.h"
|
|
#include "linux/slab.h"
|
|
#include "linux/shm.h"
|
|
#include "linux/utsname.h"
|
|
#include "linux/personality.h"
|
|
#include "asm/uaccess.h"
|
|
#define __FRAME_OFFSETS
|
|
#include "asm/ptrace.h"
|
|
#include "asm/unistd.h"
|
|
#include "asm/prctl.h" /* XXX This should get the constants from libc */
|
|
#include "choose-mode.h"
|
|
#include "kern.h"
|
|
|
|
asmlinkage long sys_uname64(struct new_utsname __user * name)
|
|
{
|
|
int err;
|
|
down_read(&uts_sem);
|
|
err = copy_to_user(name, utsname(), sizeof (*name));
|
|
up_read(&uts_sem);
|
|
if (personality(current->personality) == PER_LINUX32)
|
|
err |= copy_to_user(&name->machine, "i686", 5);
|
|
return err ? -EFAULT : 0;
|
|
}
|
|
|
|
#ifdef CONFIG_MODE_TT
|
|
extern long arch_prctl(int code, unsigned long addr);
|
|
|
|
static long arch_prctl_tt(int code, unsigned long addr)
|
|
{
|
|
unsigned long tmp;
|
|
long ret;
|
|
|
|
switch(code){
|
|
case ARCH_SET_GS:
|
|
case ARCH_SET_FS:
|
|
ret = arch_prctl(code, addr);
|
|
break;
|
|
case ARCH_GET_FS:
|
|
case ARCH_GET_GS:
|
|
ret = arch_prctl(code, (unsigned long) &tmp);
|
|
if(!ret)
|
|
ret = put_user(tmp, (long __user *)addr);
|
|
break;
|
|
default:
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
return(ret);
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_MODE_SKAS
|
|
|
|
/* XXX: Must also call arch_prctl in the host, beside saving the segment bases! */
|
|
static long arch_prctl_skas(int code, unsigned long addr)
|
|
{
|
|
long ret = 0;
|
|
|
|
switch(code){
|
|
case ARCH_SET_FS:
|
|
current->thread.regs.regs.skas.regs[FS_BASE / sizeof(unsigned long)] = addr;
|
|
break;
|
|
case ARCH_SET_GS:
|
|
current->thread.regs.regs.skas.regs[GS_BASE / sizeof(unsigned long)] = addr;
|
|
break;
|
|
case ARCH_GET_FS:
|
|
ret = put_user(current->thread.regs.regs.skas.
|
|
regs[FS_BASE / sizeof(unsigned long)],
|
|
(unsigned long __user *)addr);
|
|
break;
|
|
case ARCH_GET_GS:
|
|
ret = put_user(current->thread.regs.regs.skas.
|
|
regs[GS_BASE / sizeof(unsigned long)],
|
|
(unsigned long __user *)addr);
|
|
break;
|
|
default:
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
return(ret);
|
|
}
|
|
#endif
|
|
|
|
long sys_arch_prctl(int code, unsigned long addr)
|
|
{
|
|
return(CHOOSE_MODE_PROC(arch_prctl_tt, arch_prctl_skas, code, addr));
|
|
}
|
|
|
|
long sys_clone(unsigned long clone_flags, unsigned long newsp,
|
|
void __user *parent_tid, void __user *child_tid)
|
|
{
|
|
long ret;
|
|
|
|
if (!newsp)
|
|
newsp = UPT_SP(¤t->thread.regs.regs);
|
|
current->thread.forking = 1;
|
|
ret = do_fork(clone_flags, newsp, ¤t->thread.regs, 0, parent_tid,
|
|
child_tid);
|
|
current->thread.forking = 0;
|
|
return(ret);
|
|
}
|