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Lennart Poettering 1d84ad9445 util-lib: various improvements to kernel command line parsing
This improves kernel command line parsing in a number of ways:

a) An kernel option "foo_bar=xyz" is now considered equivalent to
   "foo-bar-xyz", i.e. when comparing kernel command line option names "-" and
   "_" are now considered equivalent (this only applies to the option names
   though, not the option values!). Most of our kernel options used "-" as word
   separator in kernel command line options so far, but some used "_". With
   this change, which was a source of confusion for users (well, at least of
   one user: myself, I just couldn't remember that it's systemd.debug-shell,
   not systemd.debug_shell). Considering both as equivalent is inspired how
   modern kernel module loading normalizes all kernel module names to use
   underscores now too.

b) All options previously using a dash for separating words in kernel command
   line options now use an underscore instead, in all documentation and in
   code. Since a) has been implemented this should not create any compatibility
   problems, but normalizes our documentation and our code.

c) All kernel command line options which take booleans (or are boolean-like)
   have been reworked so that "foobar" (without argument) is now equivalent to
   "foobar=1" (but not "foobar=0"), thus normalizing the handling of our
   boolean arguments. Specifically this means systemd.debug-shell and
   systemd_debug_shell=1 are now entirely equivalent.

d) All kernel command line options which take an argument, and where no
   argument is specified will now result in a log message. e.g. passing just
   "systemd.unit" will no result in a complain that it needs an argument. This
   is implemented in the proc_cmdline_missing_value() function.

e) There's now a call proc_cmdline_get_bool() similar to proc_cmdline_get_key()
   that parses booleans (following the logic explained in c).

f) The proc_cmdline_parse() call's boolean argument has been replaced by a new
   flags argument that takes a common set of bits with proc_cmdline_get_key().

g) All kernel command line APIs now begin with the same "proc_cmdline_" prefix.

h) There are now tests for much of this. Yay!
2016-12-21 19:09:08 +01:00
.github CONTRIBUTING: reword the part about unsetting the label (#4716) 2016-11-23 08:52:19 +01:00
.mkosi mkosi: update mkosi.fedora so that we can run "make check" during build 2016-12-14 18:29:30 +01:00
catalog catalog: update french translation following 5a1d6cb (#4872) 2016-12-12 16:17:51 -05:00
coccinelle tree-wide: drop NULL sentinel from strjoin 2016-10-23 11:43:27 -04:00
docs docs: add .gitignore 2015-07-06 17:47:38 +02:00
factory/etc factory: remove broken pam_limits 2014-07-30 15:21:54 +02:00
hwdb hwdb: axis override for HP Spectre 2016-12-20 14:39:59 +10:00
m4 build-sys: Perform flag tests in context to existing flags 2016-02-06 14:57:46 +01:00
man util-lib: various improvements to kernel command line parsing 2016-12-21 19:09:08 +01:00
network network: allow LLDP packets to cross non-customer bridges for container network interfaces 2016-05-09 15:45:31 +02:00
po l10n: update line numbers in Czech translation (#4776) 2016-11-30 15:59:19 -05:00
rules core: make mount units from /proc/self/mountinfo possibly bind to a device (#4515) 2016-12-16 17:13:58 +01:00
shell-completion analyze: add syscall-filter verb 2016-11-03 09:35:35 -04:00
src util-lib: various improvements to kernel command line parsing 2016-12-21 19:09:08 +01:00
sysctl.d treewide: fix typos and remove accidental repetition of words 2016-07-11 16:18:43 +02:00
system-preset unit: drop console-shell.service (#4298) (#4325) 2016-10-10 12:06:26 +02:00
sysusers.d remove bus-proxyd 2016-02-12 19:10:01 +01:00
test test: check that we can boot with broken machine-id 2016-12-13 13:03:14 +00:00
tmpfiles.d treewide: fix typos and remove accidental repetition of words 2016-07-11 16:18:43 +02:00
tools tools/catalog-report.py: a script to scour the journal for bad catalog entries 2016-12-11 15:43:16 -05:00
units units: drop --fail parameter from "systemctl switch-root" invocation 2016-12-20 20:00:09 +01:00
xorg login: support user-bus on dbus1 2015-08-31 18:12:37 +02:00
.dir-locals.el editors: only extend line width to 119 for C and XML files 2016-02-10 12:29:32 +01:00
.editorconfig editors: only extend line width to 119 for C and XML files 2016-02-10 12:29:32 +01:00
.gitattributes git: indicate that tabs are never OK in the systemd tree 2013-10-30 02:25:38 +01:00
.gitignore core: hook up MountFlags= to the transient unit logic 2016-12-13 21:22:13 +01:00
.mailmap NEWS: add contributor list to news file 2016-11-02 15:52:57 -06:00
.travis.yml remove gudev and gtk-doc 2015-06-03 00:22:53 +02:00
.vimrc vimrc: fix indentation logic for our docbook xml files 2016-04-29 12:23:34 +02:00
.ycm_extra_conf.py ycm: update flag blacklist 2014-06-04 15:41:10 -04:00
autogen.sh build-sys/autogen: don't use bashisms (#4489) 2016-10-25 19:39:48 -04:00
CODING_STYLE tree-wide: set SA_RESTART for signal handlers we install 2016-12-01 12:41:17 +01:00
configure.ac build-sys: don't mke use of "sushell" automatically 2016-12-20 20:23:40 +01:00
DISTRO_PORTING build-sys: Allow disabling installation of pam config snippet 2016-10-12 14:09:14 -03:00
ENVIRONMENT.md util-lib: read $SYSTEMD_PROC_CMDLINE if set when looking for the kernel cmdline 2016-12-21 19:07:55 +01:00
HACKING documentation: add a short document describing how to test your systemd build tree (#3763) 2016-07-20 22:15:54 -04:00
LICENSE.GPL2 relicense to LGPLv2.1 (with exceptions) 2012-04-12 00:24:39 +02:00
LICENSE.LGPL2.1 licence: remove references to old FSF address 2012-12-17 11:41:31 +01:00
Makefile-man.am Add sd_is_socket_sockaddr (#4885) 2016-12-14 11:51:26 +01:00
Makefile.am nspawn: split out VolatileMode definitions 2016-12-20 20:00:08 +01:00
mkosi.build mkosi: change /etc/issue text a bit for mkosi images build from systemd tree 2016-12-14 18:29:30 +01:00
mkosi.default mkosi: create .mkosi directory 2016-10-06 11:53:58 -04:00
NEWS build-sys: don't mke use of "sushell" automatically 2016-12-20 20:23:40 +01:00
README build-sys: revert dbus >= 1.9.18 requirement (#4924) 2016-12-20 10:53:53 +01:00
README.md documentation: add a short document describing how to test your systemd build tree (#3763) 2016-07-20 22:15:54 -04:00
TODO update TODO 2016-12-14 18:30:05 +01:00

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