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And mark it as experimental.
Relates to #6078.
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Since Landlock ABI v4 it is possible to restrict actions related to the
network and potentially more areas will be added in the future.
So use `landlock.fs.` as the prefix in the current filesystem-related
commands (and later `landlock.net.` for the network-related commands) to
keep them organized and to match what is used in the kernel.
Examples of filesystem and network access flags:
* `LANDLOCK_ACCESS_FS_EXECUTE`: Execute a file.
* `LANDLOCK_ACCESS_FS_READ_DIR`: Open a directory or list its content.
* `LANDLOCK_ACCESS_NET_BIND_TCP`: Bind a TCP socket to a local port.
* `LANDLOCK_ACCESS_NET_CONNECT_TCP`: Connect an active TCP socket to a
remote port.
Relates to #6078.
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This amends commit 760f50f78 ("landlock: move commands into profile and
add landlock.enforce", 2023-11-17) / PR #6125.
Misc: This was noticed on #6203.
Relates to #6078.
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As discussed with @topimiettinen[1], it is unlikely that an unprivileged
process would need to directly create block or character devices. Also,
`landlock.special` is not very descriptive of what it allows.
So split `landlock.special` into:
* `landlock.makeipc`: allow creating named pipes and sockets (which are
usually used for inter-process communication)
* `landlock.makedev`: allow creating block and character devices
Misc: The `makedev` name is based on `nodev` from mount(8), which makes
mount not interpret block and character devices. `ipc` was suggested by
@rusty-snake[2].
Relates to #6078.
[1] https://github.com/netblue30/firejail/pull/6078#pullrequestreview-1740569786
[2] https://github.com/netblue30/firejail/pull/6187#issuecomment-1924107294
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Changes:
* Move commands from --landlock and --landlock.proc= into
etc/inc/landlock-common.inc
* Remove --landlock and --landlock.proc=
* Add --landlock.enforce
Instead of hard-coding the default commands (and having a separate
command just for /proc), move them into a dedicated profile to make it
easier for users to interact with the entries (view, copy, add ignore
entries, etc).
Only enforce the Landlock commands if --landlock.enforce is supplied.
This allows safely adding Landlock commands to (upstream) profiles while
keeping their enforcement opt-in. It also makes it simpler to
effectively disable all Landlock commands, by using
`--ignore=landlock.enforce`.
Relates to #6078.
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Originally from PR #5359.
Relates to #6078.
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in README.md
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Based on 5315 by ChrysoliteAzalea.
It is based on the same underlying structure, but with a lot of
refactoring/simplification and with bugfixes and improvements.
Co-authored-by: Kelvin M. Klann <kmk3.code@protonmail.com>
Co-authored-by: Азалия Смарагдова <charming.flurry@yandex.ru>
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to run these options
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* profiles: drop private-opt (existing whitelist)
* profiles: replace private-opt with whitelist
In most profiles.
Kept private-opt for enpass (~85MB), mate-dictionary (<20MB),
minecraft-launcher (~1.6MB) and ppsspp (~44MB). The only app I couldn't
check: xmr-stak.
* docs: note potential issues with private-opt
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Simplify the main targets and use wildcards instead of repeating the
filenames manually.
Also, restore the `man` target and building only when `HAVE_MAN` is
enabled.
Note: Make automatically removes intermediate files (.1 and .5), so in
general only the .gz files have to be cleaned.
Commands used to rename the man pages:
cd src/man
git mv firecfg.txt firecfg.1.in
git mv firejail-login.txt firejail-login.5.in
git mv firejail-profile.txt firejail-profile.5.in
git mv firejail-users.txt firejail-users.5.in
git mv firejail.txt firejail.1.in
git mv firemon.txt firemon.1.in
git mv jailcheck.txt jailcheck.1.in
This is kind of a follow-up to commit 9e206b7f2 ("rework src/man
Makefile", 2023-07-07).
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Kelvin M. Klann
netblue30
glitsj16