3 files changed, 0 insertions, 155 deletions
diff --git a/ayafs/src/utils/constants.rs b/ayafs/src/utils/constants.rs
deleted file mode 100644
index 8b13789..0000000
--- a/ayafs/src/utils/constants.rs
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/ayafs/src/utils/mod.rs b/ayafs/src/utils/mod.rs
deleted file mode 100644
index 468ebdb..0000000
--- a/ayafs/src/utils/mod.rs
+++ /dev/null
@@ -1,92 +0,0 @@
-mod constants;
-pub mod permissions;
-
-use crate::block_device::BLOCK_SIZE;
-use crate::disk::inode::{Inode, INODE_SIZE};
-use crate::{AyaFS, INODE_PER_BLOCK};
-use fuser::{FileAttr, FileType};
-use std::time::{Duration, SystemTime, UNIX_EPOCH};
-
-pub(crate) fn time_now() -> u32 {
-    SystemTime::now()
-        .duration_since(UNIX_EPOCH)
-        .expect("How can current time be earlier than UNIX_EPOCH?")
-        .as_secs() as u32
-}
-
-pub(crate) fn from_systime(system_time: SystemTime) -> u32 {
-    system_time
-        .duration_since(UNIX_EPOCH)
-        .expect("How can current time be earlier than UNIX_EPOCH?")
-        .as_secs() as u32
-}
-
-pub(crate) fn to_systime(time: u32) -> SystemTime {
-    UNIX_EPOCH + Duration::from_secs(time as u64)
-}
-
-// File type code, one of:
-// 0x0 	Unknown.
-// 0x1 	Regular file.
-// 0x2 	Directory.
-// 0x3 	Character device file.
-// 0x4 	Block device file.
-// 0x5 	FIFO.
-// 0x6 	Socket.
-// 0x7 	Symbolic link.
-
-pub(crate) fn from_filetype(file_type: FileType) -> u8 {
-    match file_type {
-        FileType::NamedPipe => 0x5,
-        FileType::CharDevice => 0x3,
-        FileType::BlockDevice => 0x4,
-        FileType::Directory => 0x2,
-        FileType::RegularFile => 0x1,
-        FileType::Symlink => 0x7,
-        FileType::Socket => 0x6,
-    }
-}
-
-pub(crate) fn to_filetype(file_type: u8) -> Option<FileType> {
-    match file_type {
-        0x0 => None,
-        0x1 => Some(FileType::RegularFile),
-        0x2 => Some(FileType::Directory),
-        0x3 => Some(FileType::CharDevice),
-        0x4 => Some(FileType::BlockDevice),
-        0x5 => Some(FileType::NamedPipe),
-        0x6 => Some(FileType::Socket),
-        0x7 => Some(FileType::Symlink),
-        _ => panic!("bad filetype"),
-    }
-}
-
-pub(crate) fn to_fileattr(inode_index: usize, inode: &Inode) -> FileAttr {
-    FileAttr {
-        ino: inode_index as u64,
-        size: inode.size as u64,
-        blocks: inode.n_blocks as u64,
-        atime: to_systime(inode.atime),
-        mtime: to_systime(inode.mtime),
-        ctime: to_systime(inode.ctime),
-        crtime: to_systime(inode.crtime),
-        kind: inode.mode.into(),
-        perm: inode.mode.perm(),
-        nlink: inode.n_links as u32,
-        uid: inode.uid,
-        gid: inode.gid,
-        rdev: 0,
-        blksize: BLOCK_SIZE as u32,
-        flags: inode.flags,
-    }
-}
-
-impl AyaFS {
-    /// 输入 inode 编号, 返回它对应的 block number 和 block 内 offset
-    pub(crate) fn locate_inode(&self, inode_index: usize) -> (usize, usize) {
-        let block_number =
-            inode_index / INODE_PER_BLOCK + 1 + self.inode_bitmap.length + self.data_bitmap.length;
-        let block_offset = inode_index % INODE_PER_BLOCK * INODE_SIZE;
-        (block_number, block_offset)
-    }
-}
diff --git a/ayafs/src/utils/permissions.rs b/ayafs/src/utils/permissions.rs
deleted file mode 100644
index 6773511..0000000
--- a/ayafs/src/utils/permissions.rs
+++ /dev/null
@@ -1,62 +0,0 @@
-use crate::disk::inode::InodeMode;
-use libc::{F_OK, S_ISGID, S_ISUID, S_IXGRP, X_OK};
-use std::fs::File;
-use std::io::BufRead;
-
-pub(crate) fn get_groups(pid: u32) -> Vec<u32> {
-    let file = File::open(format!("/proc/{pid}/task/{pid}/status"))
-        .expect(format!("pid {pid} incorrect!").as_str());
-    for line in std::io::BufReader::new(file).lines() {
-        let line = line.unwrap();
-        if line.starts_with("Groups:") {
-            return line["Groups: ".len()..]
-                .split(' ')
-                .filter(|x| !x.trim().is_empty())
-                .map(|x| x.parse::<u32>().unwrap())
-                .collect();
-        }
-    }
-
-    Vec::new()
-}
-
-pub(crate) fn clear_suid_sgid(mut mode: InodeMode) -> InodeMode {
-    mode.0 &= !S_ISUID as u16;
-    if mode.0 & S_IXGRP as u16 != 0 {
-        mode.0 &= !S_ISGID as u16;
-    }
-    mode
-}
-
-pub(crate) fn check_access(
-    incoming_uid: u32,
-    incoming_gid: u32,
-    uid: u32,
-    gid: u32,
-    mode: InodeMode,
-    mut mask: i32,
-) -> bool {
-    if mask == F_OK {
-        return true;
-    }
-
-    let perm = i32::from(mode.0);
-    // root
-    if incoming_uid == 0 {
-        // 读写任何东西都是可以的, 执行只有 IXOTH/IXGRP/IXUSR 之一设置才可以
-        mask &= X_OK;
-        mask -= mask & (perm >> 6);
-        mask -= mask & (perm >> 3);
-        mask -= mask & perm;
-        return mask == 0;
-    }
-
-    if incoming_uid == uid {
-        mask -= mask & (perm >> 6);
-    } else if incoming_gid == gid {
-        mask -= mask & (perm >> 3);
-    } else {
-        mask -= mask & perm;
-    }
-    mask == 0
-}