Module cmdline 

Kernel command line parsing and manipulation.

This module provides utilities for parsing and generating kernel command line arguments, with specific support for composefs parameters. It handles the kernel’s simple quoting mechanism and provides functions to extract and create composefs= arguments with optional insecure mode indicators.

Structs

DigestDescriptor

Parsed format descriptor from a composefs.digest= value.

Enums

ComposefsCmdline

A composefs kernel argument identifying which EROFS image to mount at boot.

Constants

KARG_COMPOSEFS_DIGEST

Self-describing kernel argument: composefs.digest=<version>-<hash>-<lg>:<hex>.

KARG_V2

Legacy kernel argument for V2 EROFS: composefs=<hex_digest>.

Functions

get_cmdline_value

Gets the value of an entry from the kernel cmdline.

make_cmdline_composefs

Creates a composefs kernel command line argument string.

parse_digest_value

Parse a composefs.digest= value like v1-sha256-12:<hex> or v2-sha512-12:<hex>.

split_cmdline

Perform kernel command line splitting.