0ec0deaa30
Some distributions use alias unit files via symlinks in /usr to cover for legacy service names. With this change we'll allow "systemctl enable" on such aliases. Previously, our rule was that symlinks are user configuration that "systemctl enable" + "systemctl disable" creates and removes, while unit files is where the instructions to do so are store. As a result of the rule we'd never read install information through symlinks, since that would mix enablement state with installation instructions. Now, the new rule is that only symlinks inside of /etc are configuration. Unit files, and symlinks in /usr are now valid for installation instructions. This patch is quite a rework of the whole install logic, and makes the following addional changes: - Adds a complete test "test-instal-root" that tests the install logic pretty comprehensively. - Never uses canonicalize_file_name(), because that's incompatible with operation relative to a specific root directory. - unit_file_get_state() is reworked to return a proper error, and returns the state in a call-by-ref parameter. This cleans up confusion between the enum type and errno-like errors. - The new logic puts a limit on how long to follow unit file symlinks: it will do so only for 64 steps at max. - The InstallContext object's fields are renamed to will_process and has_processed (will_install and has_installed) since they are also used for deinstallation and all kinds of other operations. - The root directory is always verified before use. - install.c is reordered to place the exported functions together. - Stricter rules are followed when traversing symlinks: the unit suffix must say identical, and it's not allowed to link between regular units and templated units. - Various modernizations - The "invalid" unit file state has been renamed to "bad", in order to avoid confusion between UNIT_FILE_INVALID and _UNIT_FILE_STATE_INVALID. Given that the state should normally not be seen and is not documented this should not be a problematic change. The new name is now documented however. Fixes #1375, #1718, #1706 |
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catalog | ||
coccinelle | ||
docs | ||
factory/etc | ||
hwdb | ||
m4 | ||
man | ||
network | ||
po | ||
rules | ||
shell-completion | ||
src | ||
sysctl.d | ||
system-preset | ||
systemd-master/catalog | ||
sysusers.d | ||
test | ||
tmpfiles.d | ||
tools | ||
units | ||
xorg | ||
.dir-locals.el | ||
.gitattributes | ||
.gitignore | ||
.mailmap | ||
.travis.yml | ||
.vimrc | ||
.ycm_extra_conf.py | ||
autogen.sh | ||
CODING_STYLE | ||
configure.ac | ||
DISTRO_PORTING | ||
LICENSE.GPL2 | ||
LICENSE.LGPL2.1 | ||
Makefile-man.am | ||
Makefile.am | ||
NEWS | ||
README | ||
README.md | ||
TODO |
systemd - System and Service Manager
Details
- General information about systemd can be found in the systemd Wiki
- Information about build requirements are provided in the README file