socket <name> <type> <perm> [ <user> [ <group> ] ]
Create a unix domain socket named /dev/socket/<name> and pass
its fd to the launched process. <type> must be "dgram" or "stream".
User and group default to 0.
user <username>
Change to username before exec'ing this service.
Currently defaults to root. (??? probably should default to nobody)
Currently, if your process requires linux capabilities then you cannot use
this command. You must instead request the capabilities in-process while
still root, and then drop to your desired uid.
group <groupname> [ <groupname> ]*
Change to groupname before exec'ing this service. Additional
groupnames beyond the (required) first one are used to set the
supplemental groups of the process (via setgroups()).
Currently defaults to root. (??? probably should default to nobody)
oneshot
Do not restart the service when it exits.
class <name>
Specify a class name for the service. All services in a
named class may be started or stopped together. A service
is in the class "default" if one is not specified via the
class option.
onrestart
Execute a Command (see below) when service restarts.
Triggers
--------
Triggers are strings which can be used to match certain kinds
of events and used to cause an action to occur.
boot
This is the first trigger that will occur when init starts
(after /init.conf is loaded)
<name>=<value>
Triggers of this form occur when the property <name> is set
to the specific value <value>.
device-added-<path>
device-removed-<path>
Triggers of these forms occur when a device node is added
or removed.
service-exited-<name>
Triggers of this form occur when the specified service exits.
Commands
--------
exec <path> [ <argument> ]*
Fork and execute a program (<path>). This will block until
the program completes execution. It is best to avoid exec
as unlike the builtin commands, it runs the risk of getting
init "stuck". (??? maybe there should be a timeout?)
export <name> <value>
Set the environment variable <name> equal to <value> in the
global environment (which will be inherited by all processes
started after this command is executed)
ifup <interface>
Bring the network interface <interface> online.
import <filename>
Parse an init config file, extending the current configuration.
hostname <name>
Set the host name.
chdir <directory>
Change working directory.
chmod <octal-mode> <path>
Change file access permissions.
chown <owner> <group> <path>
Change file owner and group.
chroot <directory>
Change process root directory.
class_start <serviceclass>
Start all services of the specified class if they are
not already running.
class_stop <serviceclass>
Stop all services of the specified class if they are
currently running.
domainname <name>
Set the domain name.
insmod <path>
Install the module at <path>
mkdir <path> [mode] [owner] [group]
Create a directory at <path>, optionally with the given mode, owner, and
group. If not provided, the directory is created with permissions 755 and
owned by the root user and root group.
mount <type> <device> <dir> [ <mountoption> ]*
Attempt to mount the named device at the directory <dir>
<device> may be of the form mtd@name to specify a mtd block
device by name.
<mountoption>s include "ro", "rw", "remount", "noatime", ...
setkey
TBD
setprop <name> <value>
Set system property <name> to <value>.
setrlimit <resource> <cur> <max>
Set the rlimit for a resource.
start <service>
Start a service running if it is not already running.
stop <service>
Stop a service from running if it is currently running.
symlink <target> <path>
Create a symbolic link at <path> with the value <target>
sysclktz <mins_west_of_gmt>
Set the system clock base (0 if system clock ticks in GMT)
trigger <event>
Trigger an event. Used to queue an action from another
action.
write <path> <string> [ <string> ]*
Open the file at <path> and write one or more strings
to it with write(2)
Properties
----------
Init updates some system properties to provide some insight into
what it's doing:
init.action
Equal to the name of the action currently being executed or "" if none
init.command
Equal to the command being executed or "" if none.
init.svc.<name>
State of a named service ("stopped", "running", "restarting")
Example init.conf
-----------------
# not complete -- just providing some examples of usage
#
on boot
export PATH /sbin:/system/sbin:/system/bin
export LD_LIBRARY_PATH /system/lib
mkdir /dev
mkdir /proc
mkdir /sys