/* Note: it is necessary to treat option as an unsigned int,
* with the corresponding cast to a signed int to insure that the
* proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
* and the register representation of a signed int (msr in 64-bit mode) is performed.
*/
asmlinkage long sys32_sysfs(u32 option, u32 arg1, u32 arg2)
{
return sys_sysfs((int)option, arg1, arg2);
}
asmlinkage long compat_sys_sysfs(int option, u32 arg1, u32 arg2)
{
return sys_sysfs(option, arg1, arg2);
}
int
svr4_sysfs(int cmd, int arg1, int arg2)
{
if (cmd == GETFSIND)
return sys_sysfs(cmd, arg1, arg2);
if (cmd == GETNFSTYP)
return sys_sysfs(cmd, arg1, arg2);
if (cmd == GETFSTYP) {
char *buf = (char *)arg2;
int error;
if (arg1 & 0x80000000)
arg1 &= 0x0000ffff;
if (arg1 >= 0 && arg1 < sys_sysfs(GETNFSTYP,0,0))
return sys_sysfs(cmd, arg1-1, arg2);
/*
* Kludge alert! Hardcoded known magic numbers!
*/
switch (arg1) {
case 0xef53: case 0xffffef53:
case 0xef51: case 0xffffef51:
/*
* Some SCO programs (i.e. Informix Dynamic
* Server are using this to detect "real"
* filesystems by checking type names :-(.
* So we lie :-).
*/
if (is_cur_personality(PER_SCOSVR3))
error = copy_to_user(buf, "HTFS", 5);
else
error = copy_to_user(buf, "ext2", 5);
break;
case 0x137d:
error = copy_to_user(buf, "ext", 4);
break;
case 0x9660: case 0xffff9660:
error = copy_to_user(buf, "iso9660", 8);
break;
case 0x4d44:
error = copy_to_user(buf, "msdos", 6);
break;
case 0x6969:
error = copy_to_user(buf, "nfs", 4);
break;
case 0x9fa0: case 0xffff9fa0:
error = copy_to_user(buf, "proc", 5);
break;
case 0xf995e849:
case 0xe849: case 0xffffe849:
error = copy_to_user(buf, "hpfs", 5);
break;
case 0x137f: /* original */
case 0x138f: /* original + 30 char names */
case 0x2468: /* V2 */
case 0x2478: /* V2 + 30 char names */
error = copy_to_user(buf, "minix", 6);
break;
case 0x564c:
error = copy_to_user(buf, "ncpfs", 6);
break;
case 0x517b:
error = copy_to_user(buf, "smbfs", 6);
break;
case 0x00011954:
error = copy_to_user(buf, "ufs", 4);
break;
case 0x012fd16d: case 0xffffd16d:
error = copy_to_user(buf, "xiafs", 6);
break;
case 0x012ff7b3+1: case 0xfffff7b3+1:
error = copy_to_user(buf, "xenix", 6);
break;
case 0x012ff7b3+2: case 0xfffff7b3+2:
case 0x012ff7b3+3: case 0xfffff7b3+3:
error = copy_to_user(buf, "sysv", 5);
break;
case 0x012ff7b3+4: case 0xfffff7b3+4:
error = copy_to_user(buf, "coherent", 9);
break;
default:
error = copy_to_user(buf, "", 1);
break;
}
if (error)
return -EFAULT;
return 0;
}
#if defined(CONFIG_ABI_TRACE)
abi_trace(ABI_TRACE_API, "unsupported sysfs call %d\n", cmd);
#endif
return -EINVAL;
}
