When passing a section or option value to config_get() which contains
characters that happen to be valid variable interpolation expressions,
the function returns a nonsensical expression result instead of the
expected empty string.
When the passed section or option name contains other characters which
are not valid within a shell variable name, a substitution error is
occuring instead.
The issue can be easily reproduced by one of the following examples:
root@OpenWrt:~# . /lib/functions.sh
root@OpenWrt:~# config load system
root@OpenWrt:~# config_get variable invalid-section option
root@OpenWrt:~# echo "$variable"
section_option:-
root@OpenWrt:~# . /lib/functions.sh
root@OpenWrt:~# config load system
root@OpenWrt:~# config_get variable section invalid-option
root@OpenWrt:~# echo "$variable"
option:-
root@OpenWrt:~# . /lib/functions.sh
root@OpenWrt:~# config load system
root@OpenWrt:~# config_get variable section invalid@option
-ash: eval: syntax error: bad substitution
Fix this issue by only performing interpolations when the given section
and option arguments are free of illegal characters.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
The default_postinst() function in /lib/functions.sh sources
/lib/functions/system.sh before cycling through uci-defaults files.
This creates a pseudo-cyclic dependency as system.sh also uses
functions that are located in functions.sh. Despite that, there
is actually only one uci-defaults file in the entire repo that needs
system.sh, and this one contains an explicit source for system.sh
anyway.
Consequently, this patch removes the sourcing of system.sh in
functions.sh. There are no relevant uses in packages, routing and
luci repositories.
This may require adjustments for downstream, though.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
It's cleaner and faster as it does not need to do extra work.
Also removed $() to avoid executing the output. The shell can handle it.
https://github.com/koalaman/shellcheck/wiki/SC2143
Signed-off-by: Rosen Penev <rosenp@gmail.com>
[correct || to && for one conversion]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
The xor() function is defined in each of the caldata extraction
scripts for several targets. Move it to functions.sh to reduce
duplicate code.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
This is mainly for kmod-br-netfilter. To turn off
bridge-netfilter-call-xxx immediately after installation
While at it
- Define filelist="/usr/lib/opkg/info/${pkgname}.list"
- Reuse "[ -z "$root" ]"
- Grep with "-m1"
Fixes FS#2300
Reported-by: Marco Sartorius <tidbits@ormoorgmen.info>
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
When config_get is called as "config_get section option" the option
is unexpectedly globbed by the shell which differs from the way options
are read to a variable with "config_get variable section option".
Add another layer of double quotes to fix it.
Signed-off-by: Günther Kelleter <guenther.kelleter@devolo.de>
The return value of a package prerm script is discarded and not returned
correctly by default_prerm(). This allows other operations like service
shutdown to "leak" their return value, prompting workarounds like commit
48cfc826 which do not address the root cause.
Preserve a package prerm script return value for use by default_prerm(),
sharing the corresponding code from default_postinst() for consistency.
Also use consistent code for handling of /etc/init.d/ scripts.
Run Tested on: LEDE 17.01.4 running ar71xx.
Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
Commit 7f694582 introduced a bug where default_postinst() often fails to
remove a uci-defaults script after application, leaving it to run again
after a reboot.
(Note: commit 7f694582 also introduced FS#1021, now fixed by 73c745f6)
The subtle problem arises from the shell logical chain:
[ -f "$i" ] && . "$i" && rm -f "$i"
Most uci-defaults scripts contain a terminal 'exit 0' statement which,
when sourced, results in the logic chain exiting before executing 'rm -f'.
This was observed while testing upgrades of 'luci-app-sqm'.
The solution is to wrap the shell sourcing in a subshell relative to the
command 'rm -f':
( [ -f "$i" ] && . "$i" ) && rm -f "$i"
Revert to using 'grep' to prefilter the list of entries from the control
file, which yields the full path of uci-defaults scripts. This allows
keeping the existence check, directory change and script sourcing inside
the subshell, with the script removal correctly outside.
This approach avoids adding a second subshell only around the "." (source)
command. The change also preserves the fix FS#1021, since the full path is
used to source the script, which is POSIX-portable irrespective of PATH
variable or reference to the CWD.
Run Tested on: LEDE 17.01.4 running ar71xx, while tracing installation of
package luci-app-sqm with its associated /etc/uci-defaults/luci-sqm file.
Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
There are several long-standing issues present in the UCI shell API as
documented in https://wiki.openwrt.org/doc/devel/config-scripting. They
relate both to high-level, user-defined callback functions used to
process UCI config files, and also to low-level functions used within
scripts generally.
The related problems have been encountered now and in the past, e.g.
https://forum.openwrt.org/viewtopic.php?id=54295, and include:
a) UCI parsing option() function and user-defined option_cb() callbacks
being erroneously called during processing of "list" config file entries;
b) normal usage of the low-level config_set() unexpectedy calling any
defined option_cb() if present; and
c) handling of the list_cb() not respecting the NO_CALLBACK variable.
Root causes include a function stack "inversion", where the low-level
config_set() function incorrectly calls the high-level option() function,
intended only for processing the "option" keyword of UCI config files.
This change addresses the inversion and other issues, making the option
handling code more consistent and smaller, and simplifying developers'
usage of UCI callbacks.
Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com> [PKG_RELEASE increase]
Shell function return code only has range [0, 255]. Other values will
be truncated, e.g. return 65536 will have the same effect as return 0
While at it, drop other "return $rc" where rc will almost always take
value 0 and whose value current callers actually do not check
Fixes FS#988
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
When we run "opkg install" on a package that installs an uci-defaults
script, functions.sh will fail to evaluate that script in its
default_postinst function.
This happens because there is no "./" present and it searches for the
file in paths specified by the PATH variable. This would work on bash,
but it will not work on ash and some other shells like sh, zsh. This
applys to the ". filename" directive used in this case.
This patch will make the path relative to the /etc/uci-defaults
directory.
Fixes: FS#1021
Signed-off-by: Marko Ratkaj <marko.ratkaj@sartura.hr>
Let the generic postinstall script invoke "kmodloader" when the just
installed package contains any /etc/module.d/ entries.
This allows us to skip the explicit "insert_module()" calls in the
package postinstall.
Due to the removed insert_module calls we do not need to assemble a
complete list of modules per package anymore, which allows for vast
simplification of the package generation code.
While we're at it, also support specifying default parameters for
modules using either the MODPARAM or MODPARAM.modulename variables
in KernelPackage.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
There already exist static assignment of uid/gid 65533 in packages feed
and we have nobody/nogroup taking 65534 as their ids. Let's change the
pid of dynamic assignment to start from 65536 so that the two assignment
scheme will not collide with each other
While at it, fix the scan command checking existence of uid/gid
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
This adds support for install-overlay define. When used in package it
allows installing files to a special directory that gets copied to the
root when installing it.
It allows overwriting files provided by other packages.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Packages that do a killall <cmd> with the same name as the init script
will fail the prerm step when the service isn't running. Do make them
removable without having to restart the service, ignore the return code.
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Acked-by: Jo-Philipp Wich <jo@mein.io>
Properly stop/start services on upgrade, but don't change the enabled
state.
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Acked-by: Jo-Philipp Wich <jo@mein.io>
Some package postinstall operations, e.g. those emitted by the LuCI build
system, source and delete the uci-defaults themselves upon package insteall,
causing the generic defaults apply code to trigger shell errors like:
.../luci-app-ddns.postinst: .: line 130: can't open './40_luci-ddns'
Rework the generic apply code to check the existence of the uci-defaults
script before trying to source it, use sed to prefilter the list of entries
from the control file and perform the directory change in a subshell,
avoiding the need for cd $OLDPWD.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
Packages may install scripts into /etc/uci-defaults to be executed once
after installation, usually at the first boot of the target. This works
fine if the package was installed to the rootfs during build or using
the ImageBuilder.
If the package is installed using opkg during run-time uci-defaults
were applied only after a reboot of the device. Avoid the need to
reboot by evaluting the package's uci-defaults in default-postinst.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
- Simplify user spec parsing code
- Alias IPKG_INSTROOT to shorten code
- Quote variables where appropriate
- Remove a useless-use-of-cat instance
- Suppress errors in case control or list files are missing
Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>
SVN-Revision: 46975
Using the postinst script for sanity checks and expecting opkg to fail
if the postinst didn't return 0 was possible in Barrier Breaker, propagate
the real postinst return code through default_postinst to restore this
behaviour.
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
SVN-Revision: 46653
Instead of stripping everything after the first dot, strip everything
after the last dot.
This fixes pre-/postrm actions for packages with a dot in their name,
like libusb-1.0.
Fixes#19668.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
SVN-Revision: 45702
The name variable contains at first the package name,
and after the last group name.
This patch fixes /etc/rc.d symlink creation (at least).
Change name in pkgname, change the other name in ugname
(user group name), and id in ugid (user group id)
Signed-off-by: Etienne CHAMPETIER <champetier.etienne@gmail.com>
SVN-Revision: 44253
create user:group before running postinst-pkg. the postinst hook might require
the user:group to already exist.
Signed-off-by: Christian Schoenebeck <christian.schoenebeck@gmail.com>
SVN-Revision: 43472
Inside every LuCI package you need to clear luci-indexcache and
sometimes when installing non LuCI pacakges it's also needed to clear
it. Easier put it into default_postinst().
Signed-off-by: Christian Schoenebeck <christian.schoenebeck@gmail.com>
SVN-Revision: 42923
it is now possible to inlie the uid and gid in the syntax
USERID:=username=uid:group=gid:group2=gid2:...
Signed-off-by: John Crispin <blogic@openwrt.org>
SVN-Revision: 42838
the postinst script enables/starts the init.d scripts upon package installation
and installs the users required by the package.
the prerm script stops and disables the init.d scripts.
Signed-off-by: John Crispin <blogic@openwrt.org>
SVN-Revision: 42470
ubox validate_data defines yes/no as valid boolean options, do the same in
config_get_bool too.
Signed-off-by: Luka Perkov <luka@openwrt.org>
SVN-Revision: 41405
