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compatible with v1 keystore

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This commit is contained in:
Jimmy-Z 2023-08-20 01:08:57 +08:00
parent 971ed05b58
commit c6e44e9078
1 changed files with 30 additions and 17 deletions
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45
src/key.rs
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@ -2,14 +2,14 @@ use std::{
borrow::Cow,
cmp::Ordering,
fs::File,
path::Path,
io::{Read, Seek},
mem::size_of,
path::Path,
str::from_utf8,
};
use crate::{
abi_utils::{TransmuteSafe, LE32, read_vec},
abi_utils::{read_vec, TransmuteSafe, LE32},
Error,
};
@ -19,27 +19,42 @@ mod abi {
#[repr(C)]
#[derive(Debug, Clone, Copy, Default)]
pub(super) struct FileHeader {
magic0: LE32,
pub ver: LE32,
magic1: LE32,
pub words_offset: LE32,
pub idx_offset: LE32,
pub next_offset: LE32, // Jimmy-Z: no idea what this is
// Jimmy-Z: no idea what this is
// present on (not limited to) OALD10, SANKOKU8
pub next_offset: LE32,
magic5: LE32,
magic6: LE32,
magic7: LE32,
}
impl FileHeader {
pub(super) fn validate(&self) -> Result<(), Error> {
if self.magic0.read() == 0x20000
&& self.magic1.read() == 0
&& self.magic5.read() == 0
&& self.magic6.read() == 0
&& self.magic7.read() == 0
&& self.words_offset.us() < self.idx_offset.us()
&& (self.next_offset.read() == 0 || self.idx_offset.us() < self.next_offset.us())
pub(super) fn from(r: &mut impl Read) -> Result<Self, Error> {
let mut h = FileHeader::default();
r.read_exact(&mut h.as_bytes_mut()[..0x10])?;
if h.ver.read() == 0x10000 && h.words_offset.read() == 0x10{
} else if h.ver.read() == 0x20000 && h.words_offset.read() == 0x20 {
r.read_exact(&mut h.as_bytes_mut()[0x10..])?;
} else {
return Err(Error::KeyFileHeaderValidate)
}
if h.ver.read() == 0x10000
&& h.magic1.read() == 0
&& h.words_offset.us() < h.idx_offset.us()
{
Ok(())
Ok(h)
} else if h.ver.read() == 0x20000
&& h.magic1.read() == 0
&& h.magic5.read() == 0
&& h.magic6.read() == 0
&& h.magic7.read() == 0
&& h.words_offset.us() < h.idx_offset.us()
&& (h.next_offset.read() == 0 || h.idx_offset.us() < h.next_offset.us())
{
Ok(h)
} else {
Err(Error::KeyFileHeaderValidate)
}
@ -122,9 +137,7 @@ impl Keys {
pub fn new<P: AsRef<Path>>(path: P) -> Result<Keys, Error> {
let mut file = File::open(path)?;
let file_size = file.metadata()?.len() as usize;
let mut hdr = FileHeader::default();
file.read_exact(hdr.as_bytes_mut())?;
hdr.validate()?;
let hdr = FileHeader::from(&mut file)?;
file.seek(std::io::SeekFrom::Start(hdr.words_offset.read() as u64))?;
let words = read_vec(&mut file, hdr.words_offset.us(), hdr.idx_offset.us())?;