Browse Source
dracut-cpio is a minimal cpio archive creation utility written in Rust. It provides support for a minimal set of features needed to create performant and space-efficient initramfs archives: - "newc" archive format only - reproducible; inode numbers, uid/gid and mtime can be explicitly set - data segment copy-on-write reflinks + using Rust io::copy()'s native copy_file_range() support[1] + optional archive data segment alignment for optimal reflink use[2] - hardlink support - comprehensive tests asserting GNU cpio binary output compatibility 1. Rust io::copy() copy_file_range() https://github.com/rust-lang/rust/pull/75272 2. Data segment alignment We're bending the newc spec a bit to inject zeros after the file path to provide data segment alignment. These zeros are accounted for in the namesize, but some applications may only expect a single zero-terminator (and 4 byte alignment). GNU cpio and Linux initramfs handle this fine as long as PATH_MAX isn't exceeded. Signed-off-by: David Disseldorp <ddiss@suse.de>master
David Disseldorp
3 years ago
committed by
Harald Hoyer
3 changed files with 1740 additions and 0 deletions
@ -0,0 +1,12 @@ |
|||||||
|
# This file is automatically @generated by Cargo. |
||||||
|
# It is not intended for manual editing. |
||||||
|
[[package]] |
||||||
|
name = "crosvm" |
||||||
|
version = "0.1.0" |
||||||
|
|
||||||
|
[[package]] |
||||||
|
name = "dracut-cpio" |
||||||
|
version = "0.1.0" |
||||||
|
dependencies = [ |
||||||
|
"crosvm", |
||||||
|
] |
@ -0,0 +1,11 @@ |
|||||||
|
[package] |
||||||
|
name = "dracut-cpio" |
||||||
|
description = "cpio archive generator for Dracut" |
||||||
|
authors = ["David Disseldorp"] |
||||||
|
license = "GPL-2.0" |
||||||
|
version = "0.1.0" |
||||||
|
edition = "2018" |
||||||
|
|
||||||
|
[dependencies] |
||||||
|
crosvm = { path = "third_party/crosvm" } |
||||||
|
# please avoid adding any more dependencies |
Loading…
Reference in new issue