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mtk_pkg: add ZSTD decompression support, decomp part in memory, pfl_upg: add Q5521 key

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theubusu
2026-05-07 18:42:47 +02:00
parent b6a1454d76
commit eb216b1691
10 changed files with 146 additions and 99 deletions
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src/formats/mtk_pkg/mod.rs
+10 -14
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@@ -13,7 +13,7 @@ use crate::utils::common;
use crate::utils::global::opt_dump_dec_hdr;
use crate::utils::aes::{decrypt_aes128_cbc_nopad};
use crate::keys;
use lzhs::{decompress_lzhs_fs_file2file};
use lzhs::{decompress_mtk_to_file};
use include::*;
pub struct MtkPkgContext {
@@ -140,31 +140,27 @@ pub fn extract_mtk_pkg(app_ctx: &AppContext, ctx: Box<dyn Any>) -> Result<(), Bo
} else {
0
};
let fin_data = &out_data[CRYPTED_HEADER_SIZE + extra_header_len as usize..];
//for compressed part create temp file
let output_path = Path::new(&app_ctx.output_dir).join(part_entry.name() + if part_entry.is_compressed() {".lzhs"} else {".bin"});
let output_path = Path::new(&app_ctx.output_dir).join(format!("{}.bin", part_entry.name()));
fs::create_dir_all(&app_ctx.output_dir)?;
let mut out_file = OpenOptions::new().write(true).read(true)/* for lzhs */.create(true).open(&output_path)?;
out_file.write_all(&out_data[CRYPTED_HEADER_SIZE + extra_header_len as usize..])?;
if part_entry.is_compressed() {
let lzhs_out_path = Path::new(&app_ctx.output_dir).join(part_entry.name() + ".bin");
match decompress_lzhs_fs_file2file(&out_file, lzhs_out_path) {
match decompress_mtk_to_file(&fin_data, &output_path) {
Ok(()) => {
println!("- Decompressed Successfully!");
if !app_ctx.has_option("mtk_pkg:no_del_comp") {
//after successfull decompression remove the temporary .lzhs file
fs::remove_file(&output_path)?;
}
println!("-- Decompressed Successfully, Saved file!");
continue
},
Err(e) => {
eprintln!("Failed to decompress partition!, Error: {}. Saving compressed data...", e);
//if the decompression is not successfull leave out compressed data.
}
}
}
}
let mut out_file = OpenOptions::new().write(true).create(true).open(&output_path)?;
out_file.write_all(&fin_data)?;
println!("-- Saved file!");
}
Ok(())