45 lines
1.2 KiB
Rust
45 lines
1.2 KiB
Rust
// SPDX-License-Identifier: MPL-2.0
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use super::SyscallReturn;
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use crate::{
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fs::{
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file_table::FileDesc,
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fs_resolver::{FsPath, AT_FDCWD},
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utils::{InodeMode, InodeType},
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},
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prelude::*,
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syscall::constants::MAX_FILENAME_LEN,
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};
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pub fn sys_mkdirat(
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dirfd: FileDesc,
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path_addr: Vaddr,
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mode: u16,
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ctx: &Context,
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) -> Result<SyscallReturn> {
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let path = ctx.user_space().read_cstring(path_addr, MAX_FILENAME_LEN)?;
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debug!("dirfd = {}, path = {:?}, mode = {}", dirfd, path, mode);
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let fs_ref = ctx.thread_local.borrow_fs();
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let (dir_path, name) = {
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let path = path.to_string_lossy();
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let fs_path = FsPath::from_fd_and_path(dirfd, &path)?;
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fs_ref
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.resolver()
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.read()
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.lookup_unresolved_no_follow(&fs_path)?
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.into_parent_and_basename()?
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};
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let inode_mode = {
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let mask_mode = mode & !fs_ref.umask().get();
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InodeMode::from_bits_truncate(mask_mode)
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};
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let _ = dir_path.new_fs_child(&name, InodeType::Dir, inode_mode)?;
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Ok(SyscallReturn::Return(0))
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}
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pub fn sys_mkdir(path_addr: Vaddr, mode: u16, ctx: &Context) -> Result<SyscallReturn> {
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self::sys_mkdirat(AT_FDCWD, path_addr, mode, ctx)
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}
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