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docs/manual: makedev syntax accepts usernames and group names

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Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Yann E. MORIN 2016-01-21 22:23:38 +01:00 committed by Peter Korsgaard
parent 95dda394d9
commit 1ad97d1ff1
2 changed files with 23 additions and 19 deletions
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22
docs/manual/adding-packages-generic.txt
View file

@ -43,16 +43,16 @@ system is based on hand-written Makefiles or shell scripts.
28: $(INSTALL) -d -m 0755 $(TARGET_DIR)/etc/foo.d
29: endef
30:
31: define LIBFOO_DEVICES
32: /dev/foo c 666 0 0 42 0 - - -
31: define LIBFOO_USERS
32: foo -1 libfoo -1 * - - - LibFoo daemon
33: endef
34:
35: define LIBFOO_PERMISSIONS
36: /bin/foo f 4755 0 0 - - - - -
35: define LIBFOO_DEVICES
36: /dev/foo c 666 0 0 42 0 - - -
37: endef
38:
39: define LIBFOO_USERS
40: foo -1 libfoo -1 * - - - LibFoo daemon
39: define LIBFOO_PERMISSIONS
40: /bin/foo f 4755 foo libfoo - - - - -
41: endef
42:
43: $(eval $(generic-package))
@ -142,15 +142,15 @@ All these steps rely on the +$(@D)+ variable, which
contains the directory where the source code of the package has been
extracted.
On line 31..33, we define a device-node file used by this package
On lines 31..43, we define a user that is used by this package (e.g.
to run a daemon as non-root) (+LIBFOO_USERS+).
On line 35..37, we define a device-node file used by this package
(+LIBFOO_DEVICES+).
On line 35..37, we define the permissions to set to specific files
On line 39..41, we define the permissions to set to specific files
installed by this package (+LIBFOO_PERMISSIONS+).
On lines 39..41, we define a user that is used by this package (e.g.
to run a daemon as non-root) (+LIBFOO_USERS+).
Finally, on line 43, we call the +generic-package+ function, which
generates, according to the variables defined previously, all the
Makefile code necessary to make your package working.

20
docs/manual/makedev-syntax.txt
View file

@ -28,8 +28,10 @@ There are a few non-trivial blocks:
* c: a character device file
* b: a block device file
* p: a named pipe
- +mode+, +uid+ and +gid+ are the usual permissions settings (only
numerical values are allowed)
- +mode+ are the usual permissions settings (only numerical values
are allowed)
- +uid+ and +gid+ are the UID and GID to set on this file; can be
either numerical values or actual names
- +major+ and +minor+ are here for device files, set to +-+ for other
files
- +start+, +inc+ and +count+ are for when you want to create a batch
@ -37,19 +39,21 @@ There are a few non-trivial blocks:
incrementing its counter by +inc+ until it reaches +count+
Let's say you want to change the permissions of a given file; using
this syntax, you will need to put:
this syntax, you will need to write:
----
/usr/bin/foobar f 644 0 0 - - - - -
/usr/bin/foo f 755 0 0 - - - - -
/usr/bin/bar f 755 root root - - - - -
/data/buz f buz-user buz-group - - - - -
----
Alternatively, if you want to change owner/permission of a directory
recursively, you can put (to set UID to 123, GID to 456 and access
recursively, you can write (to set UID to foo, GID to bar and access
rights to rwxr-x--- for the directory /usr/share/myapp and all files
and directories below it):
----
/usr/share/myapp r 750 123 456 - - - - -
/usr/share/myapp r 750 foo bar - - - - -
----
On the other hand, if you want to create the device file +/dev/hda+
@ -57,13 +61,13 @@ and the corresponding 15 files for the partitions, you will need for
+/dev/hda+:
----
/dev/hda b 640 0 0 3 0 0 0 -
/dev/hda b 640 root root 3 0 0 0 -
----
and then for device files corresponding to the partitions of
+/dev/hda+, +/dev/hdaX+, +X+ ranging from 1 to 15:
----
/dev/hda b 640 0 0 3 1 1 1 15
/dev/hda b 640 root root 3 1 1 1 15
----