Commit Graph

36 Commits

Author SHA1 Message Date
Michael Olbrich
4c347b8ee0 config-parser: export functions to open a config file
The in-tree clients can access the functions via libshared, but they are
currently not available for external clients, such as custom shell helper
applications similar to weston-desktop-shell or
weston-ivi-shell-user-interface.
The functions to read the content of the config are already exported.

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
2019-02-07 11:02:31 +00:00
Dima Ryazanov
ad0d83bd6f Don't look for weston.ini in the current working directory
It's a bit surprising that Weston looks different when launched from the root
of the git repo vs from elsewhere.

But it's also technically a security vulnerability: if I launch it from
a directory like /tmp, it might pick up a weston.ini created by another user,
which could then load modules with arbitrary code. Basically, it's the same
problem as including "." in $PATH.

Signed-off-by: Dima Ryazanov <dima@gmail.com>
2018-11-15 13:04:11 -08:00
Pekka Paalanen
c5aaaa7b39 shared: remove weston_config_get_libexec_dir()
Now that WESTON_MODULE_MAP supersedes WESTON_BUILD_DIR for libexec
binaries, we don't need to check in WESTON_BUILD_DIR anymore.

There was only one user of weston_config_get_libexec_dir(), so remove
the whole function. There is no reason to export it.

Due to libshared.la being pulled into libweston, this probably was
libweston ABI unintended. Regardless, libweston major has already been
bumped.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Emre Ucan <eucan@de.adit-jv.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2018-06-20 16:01:03 +03:00
Emmanuel Gil Peyrot
a1d214bb39 config-parser: Export weston_config_next_section
This symbol wasn’t exported from the weston binary, most likely due to
an oversight in 6e2c12496b, and because
internal modules can link against libshared.la directly it hasn’t been
found ever since.

This commit makes it possible for external modules to iterate over the
configuration file.

Signed-off-by: Emmanuel Gil Peyrot <emmanuel.peyrot@collabora.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Acked-by: Bryce Harrington <bryce@osg.samsung.com>
2017-02-21 12:55:15 -08:00
Bryce Harrington
96c6a798a5
config-parser: Drop debug text
Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Yong Bakos <ybakos@humanoriented.com>
2016-08-27 18:14:45 +02:00
Bryce Harrington
25a2bdd814 Switch to use safe_strtoint instead of strtol
Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2016-08-06 18:19:22 -07:00
Jussi Kukkonen
649bbce607 include stdint.h for int32_t/uint32_t
Signed-off-by: Jussi Kukkonen <jussi.kukkonen@intel.com>
Reviewed-by: Yong Bakos <ybakos@humanoriented.com>
2016-07-26 16:26:08 -07:00
Bryce Harrington
d0716f4af5 Re-apply "config-parser: Catch negative numbers assigned to unsigned config values"
[With hexadecimal color values now handled via their own routine,
re-introduce the negative unsigned numbers fix.]

strtoul() has a side effect that when given a string representing a
negative number, it treats it as a high value hexadecimal.  IOW,
strtoul("-42", &val) sets val to 0xffffffd6.  This could potentially
result in unintended surprise behaviors.

Catch this by using strtol() and then manually check for the negative
value.  This logic is modelled after Wayland's strtouint().

Note that this change unfortunately reduces the range of parseable
numbers from [0,UINT_MAX] to [0,INT_MAX].  The current users of
weston_config_section_get_uint() are anticipating numbers far smaller
than either of these limits, so the change is believed to have no impact
in practice.

Also add a test case for negative numbers that catches this error
condition.

Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
2016-07-26 16:21:20 -07:00
Bryce Harrington
e776f2a4d9 config-parser: Add weston_config_section_get_color
Previously weston_config_section_get_uint was serving dual purpose for
parsing both unsigned decimal integer values (ids, counts, seconds,
etc.)  and hexadecimal values (colors), by relying on strtoul's
auto-detection mechanism.

However, this usage is unable to catch certain kinds of error
conditions, such as specifying a negative number where an unsigned
should be used.  And for colors in particular, it would misparse hex
values if the leading 0x was omitted.  E.g. "background-color=99999999"
would render a near-black background (effectively 0x05f5e0ff) instead of
medium grey, and "background-color=ffffffff" would be treated as an
error rather than white.  "background-color=0x01234567",
"background-color=01234567", and "background-color=1234567" each
resulted in the value being parsed as hexadecimal, octal, and decimal
respectively, resulting in colors 0x01234567, 0x00053977, and 0x0012d687
being displayed.

This new routine forces hexadecimal to be used in all cases when parsing
color values, so "0x01234567" and "01234567" result in the same color
value, "99999999" is grey, and "ffffffff" is white.  It also requires
exactly 8 or 10 digits (other lengths likely indicate typos), or the
value "0" (black).

Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
2016-07-26 15:57:14 -07:00
Bryce Harrington
03793e3998 Revert "config-parser: Catch negative numbers assigned to unsigned config values"
The reduction in range limits does have an effect for color values,
which are expressed as hexadecimal values from 0x00000000 to
0xFFFFFFFF.  By limiting the range to INT_MAX, color values of
0x80000000 and up are in fact lost.

This reverts commit 6351fb08c2.

Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Yong Bakos <ybakos@humanoriented.com>
Acked-by: Derek Foreman <derekf@osg.samsung.com>
Tested-by: Yong Bakos <ybakos@humanoriented.com>
2016-07-13 14:40:28 -07:00
Bryce Harrington
375759e636 Require base-10 for strtol() calls
The third arg to strtol() specifies the base to assume for the number.
When 0 is passed, as is currently done in option-parser.c, hexadecimal
and octal numbers are permitted and automatically detected and
converted.

This change is an expansion of f6051cbab8
to cover the remaining strtol() calls in Weston, where the routine is
being used to read fds and pids - which are always expressed in base-10.
It also changes the calls in config-parser, used by
weston_config_section_get_int(), which in turn is being used to read
scales, sizes, times, rates, and delays; these are all expressed in
base-10 numbers only.

The benefit of limiting this to base-10 is to eliminate surprises when
parsing numbers from the command line.  Also, by making the code
consistent with other usages of strtol, it may make it possible to
factor out the common code in the future.

Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2016-07-12 18:46:13 -07:00
Bryce Harrington
6351fb08c2 config-parser: Catch negative numbers assigned to unsigned config values
strtoul() has a side effect that when given a string representing a
negative number, it returns a negated version as the value, and does not
flag an error.  IOW, strtoul("-42", &val) sets val to 42.  This could
potentially result in unintended surprise behaviors, such as if one were
to inadvertantly set a config param to -1 expecting that to disable it,
but with the result of setting the param to 1 instead.

Catch this by using strtol() and then manually check for the negative
value.  This logic is modelled after Wayland's strtouint().

Note that this change unfortunately reduces the range of parseable
numbers from [0,UINT_MAX] to [0,INT_MAX].  The current users of
weston_config_section_get_uint() are anticipating numbers far smaller
than either of these limits, so the change is believed to have no impact
in practice.

Also add a test case for negative numbers that catches this error
condition.

Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
2016-07-12 15:50:05 -07:00
Bryce Harrington
cbc053781e config-parser: Improve error checks for strtol/strtoul calls
Check errno, which is set of over/underflow, out of range, etc.  Also
check for empty strings (the usages covered in this patch already also
cover the case where there are non-digits present).  Set errno to 0
before making the strto*l call in case of pre-existing errors
(i.e. ENOTTY when running under the testsuite).

This follows the error checking style used in Wayland
(c.f. wayland-client.c and scanner.c).

In tests, also check errno, and add testcases for parsing '0'.

Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
2016-07-08 11:10:38 -07:00
Bryce Harrington
3f2062ccb2 config-parser: Check malloc and strdup returns
Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Marek Chalupa <mchqwerty@gmail.com>
2016-02-22 13:30:51 -08:00
Jon Cruz
867d50eea7 Unified multiple definitions of container_of() macro.
Removed duplicate definitions of the container_of() macro and
refactored sources to use the single implementation.

Signed-off-by: Jon A. Cruz <jonc@osg.samsung.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
2015-06-15 17:11:58 -07:00
Bryce Harrington
6c6164c5ba shared: Update boilerplate from MIT X11 license to MIT Expat license 2015-06-15 13:04:18 -07:00
Pekka Paalanen
6c71aaeec5 Pass config file from compositor to everything
We have the Weston command line option '--no-config' which is meant to
prevent loading weston.ini at all. It works for Weston itself, but it
does not work for any clients that also want to read weston.ini.

To fix that, introduce a new environment variable WESTON_CONFIG_FILE.
Weston will set it to the absolute path of the config file it loads.
Clients will load the config file pointed to by WESTON_CONFIG_FILE. If
the environment variable is set but empty, no config file will be
loaded. If the variable is unset, things fall back to the default
"weston.ini".

Note, that Weston will only set WESTON_CONFIG_FILE, it never reads it.
The ability to specify a custom config file to load will be another patch.

All programs that loaded "weston.ini" are modified to honour
WESTON_CONFIG_FILE.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Jonny Lamb <jonny.lamb@collabora.co.uk>
Reviewed-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@xddp.denso.co.jp>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
2015-03-27 09:38:12 +02:00
Pekka Paalanen
49f6d62e9d shared: fail reading a directory as a config file
open() will happily open directories and other non-normal files.
Attempting to parse them as config files makes no sense, so check that
the opened file is indeed a regular file.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Jonny Lamb <jonny.lamb@collabora.co.uk>
Reviewed-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@xddp.denso.co.jp>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
2015-03-27 09:38:02 +02:00
Derek Foreman
c7210434d4 tests: allow running make check without make install
desktop shell and weston keyboard both refer to themselves prefixed by
LIBEXECDIR, however this is only valid once installed.  make check will
currently either fail or run pre-existing versions.

This patch adds a way to override that location by setting the env var
WESTON_BUILD_DIR - which is then set by the test env script so make check
will test the versions in the build directory regardless of whether they're
installed or not.

Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2014-08-22 17:47:33 +03:00
Alexandru DAMIAN
5f42930a41 config: Don't crash if we don't have a config file
Adding a check in weston_config_full_path so that
we don't crash if we started without a config file.

Signed-off-by: Alexandru DAMIAN <alexandru.damian@intel.com>
2013-09-26 16:24:33 -07:00
Kristian Høgsberg
eeefc9e311 compositor: Log the full path of the config file we're using 2013-09-21 23:17:35 -07:00
Kristian Høgsberg
1abe0486bb config-parser: Make weston_config_parse() tkae a file name
Take a basename of the config file to parse instead of an fd.
2013-09-21 23:05:45 -07:00
Kristian Høgsberg
81c2c2eb5e shared: Remove no longer used parse_config_file() 2013-09-21 23:05:12 -07:00
Armin K
b502f906db evdev-touchpad: Set some options using weston.ini
This patch adds 3 new options to weston.ini to allow
the user to change default constant_accel_factor,
min_accel_factor and max_accel_factor. If no options
are set, it falls back using defaults as it did before.

v2: create weston_config_section_get_double and use it
instead of manualy converting string to double.

v3: add default values in weston_config_get_double
instead of using conditionals.

v4: don't pass diagonal as pointer.
2013-08-12 22:42:17 -07:00
Quentin Glidic
6e2c12496b shared: Export configuration functions
Signed-off-by: Quentin Glidic <sardemff7+git@sardemff7.net>
2013-07-03 18:28:59 -04:00
Daniel Stone
c228e23b05 configure.ac: Enable AC_USE_SYSTEM_EXTENSIONS
AC_USE_SYSTEM_EXTENSIONS enables _XOPEN_SOURCE, _GNU_SOURCE and similar
macros to expose the largest extent of functionality supported by the
underlying system.  This is required since these macros are often
limiting rather than merely additive, e.g. _XOPEN_SOURCE will actually
on some systems hide declarations which are not part of the X/Open spec.

Since this goes into config.h rather than the command line, ensure all
source is consistently including config.h before anything else,
including system libraries.  This doesn't need to be guarded by a
HAVE_CONFIG_H ifdef, which was only ever a hangover from the X.Org
modular transition.

Signed-off-by: Daniel Stone <daniel@fooishbar.org>

[pq: rebased and converted more files]
2013-06-05 01:16:34 -04:00
Mun Gwan-gyeong
7732540f71 config-parser: Avoid null dereference when exiting. (case: weston starts without config file.)
backtrace:
 (gdb) bt
 #0  0xb7704424 in __kernel_vsyscall ()
 #1  0xb757ddde in raise (sig=5) at ../nptl/sysdeps/unix/sysv/linux/pt-raise.c:42
 #2  <signal handler called>
 #3  weston_config_destroy (config=0x0) at config-parser.c:508
 #4  0xb75cbc0e in x11_destroy (ec=0x93506b0) at compositor-x11.c:1473
 #5  0x0804e0e9 in main (argc=1, argv=0xbffe5354) at compositor.c:3337
2013-05-28 15:30:27 -04:00
Mun Gwan-gyeong
151a52834e config-parser: Avoid null dereference when handling config-parser ( when weston starts without config file. )
backtrace:
 (gdb) bt
 #0  weston_config_next_section (config=0x0, section=0xbfb2b608, name=0xbfb2b618) at config-parser.c:485
 #1  0xb75b1371 in x11_compositor_create (config=0x1, argv=0xbfb2ba44, argc=<optimized out>, use_pixman=0, no_input=0, fullscreen=0, display=0xb75b55f9)
    at compositor-x11.c:1582
 #2  backend_init (display=0x8354490, argc=0xbfb2b9b0, argv=0xbfb2ba44, config=0x0) at compositor-x11.c:1674
 #3  0x0804df7b in main (argc=1, argv=0xbfb2ba44) at compositor.c:3289
2013-05-28 15:30:14 -04:00
Kristian Høgsberg
f73f316248 config-parser: Add section iterator API
The X backend needs to iterate through all outputs.
2013-05-26 20:50:53 -04:00
Mun Gwan-gyeong
72a3ab7b85 config-parser: Avoid null dereference when handling config-parser
backtrace:
 (gdb) bt
 #0  weston_config_get_section (config=0x0, section=0x8062f31 "keyboard", key=0x0, value=0x0)
     at config-parser.c:265
 #1  0x080535a1 in weston_compositor_init (ec=0x905b690, display=0x9056490, argc=0xbf8bd2f0,
     argv=0xbf8bd384, config_fd=-1) at compositor.c:2819
 #2  0xb75d72bb in x11_compositor_create (config_fd=-1, argv=0xbf8bd384, argc=<optimized out>,
     use_pixman=0, no_input=0, fullscreen=0, display=0x9056490) at compositor-x11.c:1527
 #3  backend_init (display=0x9056490, argc=0xbf8bd2f0, argv=0xbf8bd384, config_fd=-1)
     at compositor-x11.c:1746
2013-05-26 20:07:47 -04:00
Kristian Høgsberg
732747114a Add new config parser
The current config parser, parses the ini file and pulls out the values
specified by the struct config_section passed to parse_config_file() and
then throw the rest away.  This means that every place we want to get
info out of the ini file, we have to parse the whole thing again.  It's not
a big overhead, but it's also not a convenient API.

This patch adds a parser that parses the ini file to a data structure and
puts that in weston_compositor->config along with API to query comfig
keys from the data structure.  The old parser is still available, but
we'll transition to the new approach over the next few commits.
2013-05-23 21:25:42 -04:00
Ossama Othman
a50e6e4c50 config-parser: Honor XDG_CONFIG_DIRS
This set of changes adds support for searching for a given config file
in the directories listed in $XDG_CONFIG_DIRS if it wasn't found in
$XDG_CONFIG_HOME or ~/.config.  This allows packages to install custom
config files in /etc/xdg/weston, for example, thus allowing them to
avoid dealing with home directories.

To avoid a TOCTOU race the config file is actually open()ed during the
search.  Its file descriptor is returned and stored in the compositor
for later use when performing subsequent config file parses.

Signed-off-by: Ossama Othman <ossama.othman@intel.com>
2013-05-14 14:36:37 -04:00
Kristian Høgsberg
3d89049546 config-parser: Handle lines that don't end in \n
If the last line in a config file doesn't have a newline
we end up chopping off the last character from that line.
2012-08-03 21:56:41 -04:00
Pekka Paalanen
4ea4d1bb39 config-parser: add missing return for an error case
Fixes
config-parser.c: In function 'handle_key':
config-parser.c:81: error: control reaches end of non-void function

Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
2012-04-17 14:33:30 +03:00
Scott Moreau
fa1de69203 Implement CONFIG_KEY_UNSIGNED_INTEGER
strtol() does not work when trying to assign 32 bits of data into a
regular signed int on 32 bit systems. Use corresponding strtoul()
instead.
2012-01-27 15:34:27 -05:00
Kristian Høgsberg
9b935c8239 Use '-' to separate words in file names
Eventually we will want more functionality in the shared library and we
will rename it at that point.  Perhaps we'll name it libnih, but for now
let's stick with libconfig-parser.
2011-12-08 12:44:27 -05:00