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Commit Graph

14 Commits

Author SHA1 Message Date
Alban Crequy
ee818b89f4 core: Private*/Protect* options with RootDirectory
When a service is chrooted with the option RootDirectory=/opt/..., then
the options PrivateDevices, PrivateTmp, ProtectHome, ProtectSystem must
mount the directories under $RootDirectory/{dev,tmp,home,usr,boot}.

The test-ns tool can test setup_namespace() with and without chroot:
 $ sudo TEST_NS_PROJECTS=/home/lennart/projects ./test-ns
 $ sudo TEST_NS_CHROOT=/home/alban/debian-tree TEST_NS_PROJECTS=/home/alban/debian-tree/home/alban/Documents ./test-ns
2015-05-18 18:47:45 +02:00
Topi Miettinen
e65476622d Type of mount(2) flags is unsigned long 2015-01-01 14:39:17 -05:00
Lennart Poettering
a004cb4cb2 namespace: add missing 'const' to parameters 2014-10-17 13:49:08 +02:00
Daniel Mack
a610cc4f18 namespace: add support for custom kdbus endpoint
If a path to a previously created custom kdbus endpoint is passed in,
bind-mount a new devtmpfs that contains a 'bus' node, which in turn in
bind-mounted with the custom endpoint. This tmpfs then mounted over the
kdbus subtree that refers to the current bus.

This way, we can fake the bus node in order to lock down services with
a kdbus custom endpoint policy.
2014-09-08 14:12:56 +02:00
Lennart Poettering
1b8689f949 core: rename ReadOnlySystem= to ProtectSystem= and add a third value for also mounting /etc read-only
Also, rename ProtectedHome= to ProtectHome=, to simplify things a bit.

With this in place we now have two neat options ProtectSystem= and
ProtectHome= for protecting the OS itself (and optionally its
configuration), and for protecting the user's data.
2014-06-04 18:12:55 +02:00
Lennart Poettering
417116f234 core: add new ReadOnlySystem= and ProtectedHome= settings for service units
ReadOnlySystem= uses fs namespaces to mount /usr and /boot read-only for
a service.

ProtectedHome= uses fs namespaces to mount /home and /run/user
inaccessible or read-only for a service.

This patch also enables these settings for all our long-running services.

Together they should be good building block for a minimal service
sandbox, removing the ability for services to modify the operating
system or access the user's private data.
2014-06-03 23:57:51 +02:00
Lennart Poettering
7f112f50fe exec: introduce PrivateDevices= switch to provide services with a private /dev
Similar to PrivateNetwork=, PrivateTmp= introduce PrivateDevices= that
sets up a private /dev with only the API pseudo-devices like /dev/null,
/dev/zero, /dev/random, but not any physical devices in them.
2014-01-20 21:28:37 +01:00
Lennart Poettering
613b411c94 service: add the ability for units to join other unit's PrivateNetwork= and PrivateTmp= namespaces 2013-11-27 20:28:48 +01:00
Zbigniew Jędrzejewski-Szmek
d8c9d3a468 systemd: use unit name in PrivateTmp directories
Unit name is used whole in the directory name, so that the unit name
can be easily extracted from it, e.g. "/tmp/systemd-abcd.service-DEDBIF1".

https://bugzilla.redhat.com/show_bug.cgi?id=957439
2013-10-22 22:54:09 -04:00
Henrik Grindal Bakken
05b9b83ad3 core: Remove unnecessary typedef
ExecContext isn't used in this header file, and everything seems to
build just fine without this typedef.  The typedef doesn't really belong
here, and at least my gcc-4.4.6 gives an error on type redefined.
2013-04-17 18:27:46 +02:00
Michal Sekletar
c17ec25e4d core: reuse the same /tmp, /var/tmp and inaccessible dir
All Execs within the service, will get mounted the same
/tmp and /var/tmp directories, if service is configured with
PrivateTmp=yes. Temporary directories are cleaned up by service
itself in addition to systemd-tmpfiles. Directory which is mounted
as inaccessible is created at runtime in /run/systemd.
2013-03-15 22:56:40 -04:00
Shawn Landden
c2f1db8f83 use #pragma once instead of foo*foo #define guards
#pragma once has been "un-deprecated" in gcc since 3.3, and is widely supported
in other compilers.

I've been using and maintaining (rebasing) this patch for a while now, as
it annoyed me to see #ifndef fooblahfoo, etc all over the place,
almost arrogant about the annoyance of having to define all these names to
perform a commen but neccicary functionality, when a completely superior
alternative exists.

I havn't sent it till now, cause its kindof a style change, and it is bad
voodoo to mess with style that has been established by more established
editors. So feel free to lambast me as a crazy bafoon.

v2 - preserve externally used headers
2012-07-19 12:30:59 +02:00
Lennart Poettering
5430f7f2bc relicense to LGPLv2.1 (with exceptions)
We finally got the OK from all contributors with non-trivial commits to
relicense systemd from GPL2+ to LGPL2.1+.

Some udev bits continue to be GPL2+ for now, but we are looking into
relicensing them too, to allow free copy/paste of all code within
systemd.

The bits that used to be MIT continue to be MIT.

The big benefit of the relicensing is that closed source code may now
link against libsystemd-login.so and friends.
2012-04-12 00:24:39 +02:00
Kay Sievers
b30e2f4c18 move libsystemd_core.la sources into core/ 2012-04-11 16:03:51 +02:00