From: Yann E. MORIN Date: Thu, 21 Jan 2016 21:23:38 +0000 (+0100) Subject: docs/manual: makedev syntax accepts usernames and group names X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1ad97d1ff1324adaf2ccdd04a11e2a12b8ac8dcf;p=buildroot.git docs/manual: makedev syntax accepts usernames and group names Signed-off-by: "Yann E. MORIN" Cc: Thomas Petazzoni Signed-off-by: Peter Korsgaard --- diff --git a/docs/manual/adding-packages-generic.txt b/docs/manual/adding-packages-generic.txt index 1f9c7bbe95..b7817e309c 100644 --- a/docs/manual/adding-packages-generic.txt +++ b/docs/manual/adding-packages-generic.txt @@ -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. diff --git a/docs/manual/makedev-syntax.txt b/docs/manual/makedev-syntax.txt index cae37f77d3..0bbc16ec29 100644 --- a/docs/manual/makedev-syntax.txt +++ b/docs/manual/makedev-syntax.txt @@ -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 ----