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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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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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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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The `shell` option has been removed. Remove stale references.
This does NOT remove `shell none`-related code comments in:
- src/firejail/fs_lib.c (L433-L441)
- src/firejail/join.c (L415-L417)
Relates to #5196.
Suggested by #5891.
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This reverts commit 54cb3e741e972c754e595d56de0bca0792299f83, reversing
changes made to 97b1e02d5f4dca4261dc9928f8a5ebf8966682d7.
There were many issues and requests for changes raised in the pull
request (both code-wise and design-wise) and most of them are still
unresolved[1].
[1] https://github.com/netblue30/firejail/pull/5315
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bash:
- remove --audit
zsh:
- add --mkdir + --mkfile
- remove -audit
and fix typo in 9b56dc8e
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Don't have duplicate descriptions and put = signs where they belong to
zsh completion function now dynamically adjusts for options (e.g. no --apparmor option without AppArmor configured)
No EXTRA_CFLAGS for cpp
Found main.c which does the argument processing. Moved some arguments into the correct #ifdef blocks
Profile selection now much better
Not more cpp. Using preproc.awk instead.
Updated bash firejail command completion to add profiles
ignore bash and zsh dynamically created completion scripts
Moved bash/zsh completions out of ALL_ITEMS to fix make install
Cleanup
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Kelvin M. Klann
netblue30
glitsj16
Азалия Смарагдова
a1346054
rusty-snake
Harald Kubota