Skip to content
Snippets Groups Projects
  • Jeff Vander Stoep's avatar
    d22987b4
    Create attribute for moving perms out of domain · d22987b4
    Jeff Vander Stoep authored
    Motivation: Domain is overly permissive. Start removing permissions
    from domain and assign them to the domain_deprecated attribute.
    Domain_deprecated and domain can initially be assigned to all
    domains. The goal is to not assign domain_deprecated to new domains
    and to start removing domain_deprecated where it is not required or
    reassigning the appropriate permissions to the inheriting domain
    when necessary.
    
    Bug: 25433265
    Change-Id: I8b11cb137df7bdd382629c98d916a73fe276413c
    d22987b4
    History
    Create attribute for moving perms out of domain
    Jeff Vander Stoep authored
    Motivation: Domain is overly permissive. Start removing permissions
    from domain and assign them to the domain_deprecated attribute.
    Domain_deprecated and domain can initially be assigned to all
    domains. The goal is to not assign domain_deprecated to new domains
    and to start removing domain_deprecated where it is not required or
    reassigning the appropriate permissions to the inheriting domain
    when necessary.
    
    Bug: 25433265
    Change-Id: I8b11cb137df7bdd382629c98d916a73fe276413c
toolbox.te 1.03 KiB
# Any toolbox command run by init.
# At present, the only known usage is for running mkswap via fs_mgr.
# Do NOT use this domain for toolbox when run by any other domain.
type toolbox, domain, domain_deprecated;
type toolbox_exec, exec_type, file_type;

init_daemon_domain(toolbox)

# /dev/__null__ created by init prior to policy load,
# open fd inherited by fsck.
allow toolbox tmpfs:chr_file { read write ioctl };

# Inherit and use pty created by android_fork_execvp_ext().
allow toolbox devpts:chr_file { read write getattr ioctl };

# mkswap-specific.
# Read/write block devices used for swap partitions.
# Assign swap_block_device type any such partition in your
# device/<vendor>/<product>/sepolicy/file_contexts file.
allow toolbox block_device:dir search;
allow toolbox swap_block_device:blk_file rw_file_perms;

# Only allow entry from init via the toolbox binary.
neverallow { domain -init } toolbox:process transition;
neverallow domain toolbox:process dyntransition;
neverallow toolbox { file_type fs_type -toolbox_exec}:file entrypoint;