Let's set the version in the meson file instead of declaring it outside.
In case git is installed we use the git hash as version. Instead it
isn't (like on a clean build system), let's use the version defined in
the project.
This commit mostly duplicates the wlr_log functions, although
with a sway_* prefix. (This is very similar to PR #2009.)
However, the logging function no longer needs to be replaceable,
so sway_log_init's second argument is used to set the exit
callback for sway_abort.
wlr_log_init is still invoked in sway/main.c
This commit makes it easier to remove the wlroots dependency for
the helper programs swaymsg, swaybg, swaybar, and swaynag.
This modifies the way mouse bindings are parsed. Instead of adding to
BTN_LEFT, which results in button numbers that may not be expected,
buttons will be parsed in one of the following ways:
1. `button[1-9]` will now map to their x11 equivalents. This is already
the case for bar bindings. This adds support for binding to axis events,
which was not possible in the previous approach.
2. Anything that starts with `BTN_` will be parsed as an event code name
using `libevdev_event_code_from_name`. This allows for any button to be
mapped to instead of limiting usage to the ones near BTN_LEFT. This also
adds a dependency on libevdev, but since libevdev is already a dependency
of libinput, this should be fine. If needed, this option can have dependency
guards added.
Binding changes:
- button1: BTN_LEFT -> BTN_LEFT
- button2: BTN_RIGHT -> BTN_MIDDLE
- button3: BTN_MIDDLE -> BTN_RIGHT
- button4: BTN_SIDE -> SWAY_SCROLL_UP
- button5: BTN_EXTRA -> SWAY_SCROLL_DOWN
- button6: BTN_FORWARD -> SWAY_SCROLL_LEFT
- button7: BTN_BACK -> SWAY_SCROLL_RIGHT
- button8: BTN_TASK -> BTN_SIDE
- button9: BTN_JOYSTICK -> BTN_EXTRA
Since the axis events need to be mapped to an event code, this uses the
following mappings to avoid any conflicts:
- SWAY_SCROLL_UP: KEY_MAX + 1
- SWAY_SCROLL_DOWN: KEY_MAX + 2
- SWAY_SCROLL_LEFT: KEY_MAX + 3
- SWAY_SCROLL_RIGHT: KEY_MAX + 4
SYSCONFDIR was set to the wrong path if prefix is not '/usr' and
sysconfdir is an absolute path. Use join_paths() to fix it.
Also remove the special case for prefix '/usr'. In that case Meson
already sets sysconfdir to the absolute path '/etc', so just using
join_paths() will return the correct value.
join_paths('/usr/local', 'etc') => '/usr/local/etc'
join_paths('/usr/local', '/etc') => '/etc'
join_paths('/usr', '/etc') => '/etc'
PR #2855 basically hardcodes the config file path to /etc, which is a
problem on e.g. FreeBSD, where the expected path for config files of
non-base software is '/usr/local/etc'.
Meson sets sysconfdir to '/etc' explicitly only when prefix is '/usr',
so it is still possible to use '/usr/local' as prefix, and install the
config files under '/usr/local/etc'. This commit allows to do that by
setting sysconfdir based on the value of prefix.
Today I learned that GNU flaunts the POSIX standard in yet another
creative way. Additionally, this adds some security improvements,
namely:
- Zeroing out password buffers in the privileged child process
- setuid/setgid after reading /etc/shadow
It's better to use DT_RPATH dynamic section of the elf binary to store
the paths of libraries to load instead of overwriting LD_LIBRARY_PATH
for the whole environment, causing surprises. This solution is much more
transparent and perfectly suitable for running contained installations
of wayland/wlroots/sway.
The code unsetting the LD_LIBRARY_PATH/LD_PRELOAD was also deleted as
it's a placebo security at best - we should trust the execution path
that leads us to running sway, and it's way too late to care about those
variables since we already started executing our compositor, thus we
would be compromised anyway.
This involves setuid'ing swaylock, which then forks and drops perms on
the parent process. The child process remains root and listens on a pipe
for requests to validate passwords against /etc/shadow.
This will restrict the default namespace set on FreeBSD to the C11
standard (everything is visible by default), which will prevent possible
conflicts with symbols hidden behing __BSD_VISIBLE.
SYSCONFDIR is used to determine the path of the default configuration
file. 'sysconfdir' is set to 'prefix/sysconfdir' later (on line 139),
so configuration files are installed under 'prefix', but SYSCONFDIR did
not reflect it.
