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use std::ptr;
use std::path::Path;
use libc::{c_ulong, c_int, c_void};
use errno::{SysResult, from_ffi};
bitflags!(
flags MsFlags: c_ulong {
const MS_RDONLY = 1 << 0, // Mount read-only
const MS_NOSUID = 1 << 1, // Ignore suid and sgid bits
const MS_NODEV = 1 << 2, // Disallow access to device special files
const MS_NOEXEC = 1 << 3, // Disallow program execution
const MS_SYNCHRONOUS = 1 << 4, // Writes are synced at once
const MS_REMOUNT = 1 << 5, // Alter flags of a mounted FS
const MS_MANDLOCK = 1 << 6, // Allow mandatory locks on a FS
const MS_DIRSYNC = 1 << 7, // Directory modifications are synchronous
const MS_NOATIME = 1 << 10, // Do not update access times
const MS_NODIRATIME = 1 << 11, // Do not update directory access times
const MS_BIND = 1 << 12, // Linux 2.4.0 - Bind directory at different place
const MS_MOVE = 1 << 13,
const MS_REC = 1 << 14,
const MS_VERBOSE = 1 << 15, // Deprecated
const MS_SILENT = 1 << 15,
const MS_POSIXACL = 1 << 16,
const MS_UNBINDABLE = 1 << 17,
const MS_PRIVATE = 1 << 18,
const MS_SLAVE = 1 << 19,
const MS_SHARED = 1 << 20,
const MS_RELATIME = 1 << 21,
const MS_KERNMOUNT = 1 << 22,
const MS_I_VERSION = 1 << 23,
const MS_STRICTATIME = 1 << 24,
const MS_NOSEC = 1 << 28,
const MS_BORN = 1 << 29,
const MS_ACTIVE = 1 << 30,
const MS_NOUSER = 1 << 31,
const MS_RMT_MASK = MS_RDONLY.bits
| MS_SYNCHRONOUS.bits
| MS_MANDLOCK.bits
| MS_I_VERSION.bits,
const MS_MGC_VAL = 0xC0ED0000,
const MS_MGC_MSK = 0xffff0000
}
)
bitflags!(
flags MntFlags: c_int {
const MNT_FORCE = 1 << 0,
const MNT_DETATCH = 1 << 1,
const MNT_EXPIRE = 1 << 2
}
)
mod ffi {
use libc::{c_char, c_int, c_void, c_ulong};
extern {
pub fn mount(
source: *const c_char,
target: *const c_char,
fstype: *const c_char,
flags: c_ulong,
data: *const c_void) -> c_int;
pub fn umount(target: *const c_char) -> c_int;
pub fn umount2(target: *const c_char, flags: c_int) -> c_int;
}
}
pub fn mount(
source: Option<&Path>,
target: &Path,
fstype: Option<&str>,
flags: MsFlags,
data: Option<&str>) -> SysResult<()> {
let source = source.map(|s| s.to_c_str());
let target = target.to_c_str();
let fstype = fstype.map(|s| s.to_c_str());
let data = data.map(|s| s.to_c_str());
let res = unsafe {
ffi::mount(
source.as_ref().map(|s| s.as_ptr()).unwrap_or(ptr::null()),
target.as_ptr(),
fstype.as_ref().map(|s| s.as_ptr()).unwrap_or(ptr::null()),
flags.bits,
data.map(|s| s.as_ptr() as *const c_void).unwrap_or(ptr::null()))
};
from_ffi(res)
}
pub fn umount(target: &Path) -> SysResult<()> {
let target = target.to_c_str();
let res = unsafe { ffi::umount(target.as_ptr()) };
from_ffi(res)
}
pub fn umount2(target: &Path, flags: MntFlags) -> SysResult<()> {
let target = target.to_c_str();
let res = unsafe { ffi::umount2(target.as_ptr(), flags.bits) };
from_ffi(res)
}
|
