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Implement O_DIRECTORY, switch to open for mkdir

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This commit is contained in:
Jeremy Soller 2016-11-25 18:24:38 -07:00
commit c018bfe5ef
1 changed files with 33 additions and 44 deletions
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24
kernel/syscall/fs.rs
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@ -49,7 +49,7 @@ pub fn file_op_mut_slice(a: usize, fd: FileHandle, slice: &mut [u8]) -> Result<u
/// Change the current working directory
pub fn chdir(path: &[u8]) -> Result<usize> {
let fd = open(path, 0)?;
let fd = open(path, syscall::flag::O_RDONLY | syscall::flag::O_DIRECTORY)?;
let mut stat = Stat::default();
let stat_res = file_op_mut_slice(syscall::number::SYS_FSTAT, fd, &mut stat);
let _ = close(fd);
@ -144,28 +144,6 @@ pub fn pipe2(fds: &mut [usize], flags: usize) -> Result<usize> {
}
}
/// mkdir syscall
pub fn mkdir(path: &[u8], mode: u16) -> Result<usize> {
let (path_canon, uid, gid, scheme_ns) = {
let contexts = context::contexts();
let context_lock = contexts.current().ok_or(Error::new(ESRCH))?;
let context = context_lock.read();
(context.canonicalize(path), context.euid, context.egid, context.ens)
};
let mut parts = path_canon.splitn(2, |&b| b == b':');
let scheme_name_opt = parts.next();
let reference_opt = parts.next();
let scheme_name = scheme_name_opt.ok_or(Error::new(ENODEV))?;
let scheme = {
let schemes = scheme::schemes();
let (_scheme_id, scheme) = schemes.get_name(scheme_ns, scheme_name).ok_or(Error::new(ENODEV))?;
scheme.clone()
};
scheme.mkdir(reference_opt.unwrap_or(b""), mode, uid, gid)
}
/// chmod syscall
pub fn chmod(path: &[u8], mode: u16) -> Result<usize> {
let (path_canon, uid, gid, scheme_ns) = {