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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f) The proc_cmdline_parse() call's boolean argument has been replaced by a new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
..
.gitignore build-sys: split internal basic/ library from shared/ 2015-06-11 10:52:46 +02:00
af-list.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
af-list.h Use provided buffer in dns_resource_key_to_string 2016-02-16 19:55:51 -05:00
alloc-util.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
alloc-util.h tree-wide: introduce free_and_replace helper 2016-10-16 23:35:39 -04:00
architecture.c architecture: Add support for the RISC-V architecture. (#4305) 2016-10-07 14:56:27 +02:00
architecture.h build-sys: define arm as secondary architecture for arm64 2016-12-10 13:01:22 -05:00
arphrd-list.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
arphrd-list.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
async.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
async.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
audit-util.c audit: disable if cannot create NETLINK_AUDIT socket 2016-10-06 11:49:00 +02:00
audit-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
barrier.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
barrier.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
bitmap.c tree-wide: use mfree more 2016-10-16 23:35:39 -04:00
bitmap.h resolved: when using the ResolveRecord() bus call, adjust TTL for caching time 2016-06-21 13:20:48 +02:00
blkid-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
btrfs-ctree.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
btrfs-util.c nspawn: add fallback top normal copy/reflink when we cannot btrfs snapshot 2016-11-22 13:35:09 +01:00
btrfs-util.h nspawn: add fallback top normal copy/reflink when we cannot btrfs snapshot 2016-11-22 13:35:09 +01:00
build.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
bus-label.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
bus-label.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
calendarspec.c calendarspec: remove superfluous variables 2016-12-16 19:47:04 -05:00
calendarspec.h calendarspec: rename fields of CalendarComponent 2016-12-16 19:45:06 -05:00
cap-list.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
cap-list.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
capability-util.c user-util: rework maybe_setgroups() a bit 2016-10-06 19:04:10 +02:00
capability-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
cgroup-util.c util-lib: various improvements to kernel command line parsing 2016-12-21 19:09:08 +01:00
cgroup-util.h nspawn: cleanup and chown the synced cgroup hierarchy (#4223) 2016-10-13 09:50:46 -04:00
chattr-util.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
chattr-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
clock-util.c clock-util: be more tolerant in parsing /etc/adjtime 2016-02-26 12:33:41 +01:00
clock-util.h clock-util: make clock_is_localtime() testable and add initial tests 2016-02-26 11:28:49 +01:00
conf-files.c tree-wide: drop NULL sentinel from strjoin 2016-10-23 11:43:27 -04:00
conf-files.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
copy.c treewide: fix typos and remove accidental repetition of words 2016-07-11 16:18:43 +02:00
copy.h machined: support non-btrfs file systems with "machinectl clone" 2016-05-02 11:15:30 +02:00
cpu-set-util.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
cpu-set-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
def.h tree-wide: rename config_parse_many to …_nulstr 2016-09-16 10:32:03 -04:00
device-nodes.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
device-nodes.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
dirent-util.c tree-wide: rename hidden_file to hidden_or_backup_file and optimize 2016-04-28 08:25:17 -04:00
dirent-util.h tree-wide: rename hidden_file to hidden_or_backup_file and optimize 2016-04-28 08:25:17 -04:00
env-util.c basic/env-uil: fix assertion failure in strv_env_replace (#4688) 2016-11-17 22:25:01 +01:00
env-util.h core/load-fragment: modify existing environment instead of copying strv over and over 2016-11-05 18:54:27 -04:00
errno-list.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
errno-list.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
escape.c tree-wide: remove consecutive duplicate words in comments 2016-10-04 17:06:25 +02:00
escape.h Merge pull request #2589 from keszybz/resolve-tool-2 2016-02-13 11:15:41 +01:00
ether-addr-util.c util-lib: add ether_addr_from_string() 2016-05-17 16:55:20 -04:00
ether-addr-util.h util-lib: add ether_addr_from_string() 2016-05-17 16:55:20 -04:00
exit-status.c core: run each system service with a fresh session keyring 2016-12-13 20:59:10 +01:00
exit-status.h core: run each system service with a fresh session keyring 2016-12-13 20:59:10 +01:00
extract-word.c basic/extract-word,man: clarify "correction" of invalid escapes 2016-12-11 00:21:36 -05:00
extract-word.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
fd-util.c tree-wide: replace all readdir cycles with FOREACH_DIRENT{,_ALL} (#4853) 2016-12-09 10:04:30 +01:00
fd-util.h basic/fd-util: introduce stdio_unset_cloexec() function 2016-07-02 23:38:47 +06:00
fileio-label.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
fileio-label.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
fileio.c util-lib: add easy helpers for temporary directories that rmdir()ed via _cleanup_ 2016-12-07 18:38:41 +01:00
fileio.h util-lib: add easy helpers for temporary directories that rmdir()ed via _cleanup_ 2016-12-07 18:38:41 +01:00
format-util.h Rename formats-util.h to format-util.h 2016-11-07 10:15:08 -05:00
fs-util.c util-lib: accept invoking chase_symlinks() with a NULL return parameter 2016-12-20 20:00:08 +01:00
fs-util.h util-lib: add easy helpers for temporary directories that rmdir()ed via _cleanup_ 2016-12-07 18:38:41 +01:00
glob-util.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
glob-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
gunicode.c basic: use for() loop instead of while() 2016-10-12 22:48:41 +02:00
gunicode.h tree-wide: place #pragma once at the same place everywhere 2016-02-20 22:42:29 +01:00
hash-funcs.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
hash-funcs.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
hashmap.c set: add new set_put_strsplit() call 2016-06-21 13:20:48 +02:00
hashmap.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
hexdecoct.c tree-wide: make ++/-- usage consistent WRT spacing 2016-02-22 20:32:04 -08:00
hexdecoct.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
hostname-util.c hostnamectl: rework pretty hostname validation (#3985) 2016-08-18 21:16:16 -04:00
hostname-util.h networkd: add basic LLDP transmission support 2016-02-21 20:58:59 +01:00
in-addr-util.c basic: make sure in_addr_from_string() can take NULL arguments 2016-11-21 22:47:47 +01:00
in-addr-util.h basic: add explicit ipv4-specific in_addr classification calls 2016-11-21 22:47:47 +01:00
io-util.c core: rework how we flush incoming traffic when a socket unit goes down 2016-05-06 13:29:26 +02:00
io-util.h tree-wide: minor formatting inconsistency cleanups 2016-02-23 14:20:34 -08:00
ioprio.h tree-wide: sort includes in *.h 2015-11-18 23:09:02 +01:00
khash.c core: add "khash" API to src/basic/ (as wrapper around kernel AF_ALG) 2016-11-29 15:13:00 +01:00
khash.h core: add "khash" API to src/basic/ (as wrapper around kernel AF_ALG) 2016-11-29 15:13:00 +01:00
label.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
label.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
list.h list: LIST_INSERT_BEFORE: update head if necessary (#4261) 2016-10-04 16:15:37 +02:00
locale-util.c locale-util: mark special_glyph() as _const_ 2016-05-09 15:17:57 -04:00
locale-util.h locale-util: mark special_glyph() as _const_ 2016-05-09 15:17:57 -04:00
lockfile-util.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
lockfile-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
log.c util-lib: various improvements to kernel command line parsing 2016-12-21 19:09:08 +01:00
log.h core: add "invocation ID" concept to service manager 2016-10-07 20:14:38 +02:00
login-util.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
login-util.h tree-wide: place #pragma once at the same place everywhere 2016-02-20 22:42:29 +01:00
macro.h networkd: add support to configure VLAN on bridge ports 2016-06-10 09:10:41 +02:00
Makefile build-sys: split internal basic/ library from shared/ 2015-06-11 10:52:46 +02:00
memfd-util.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
memfd-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
mempool.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
mempool.h tree-wide: make more global variables static 2016-02-13 12:28:28 +01:00
missing.h core: run each system service with a fresh session keyring 2016-12-13 20:59:10 +01:00
missing_syscall.h missing_syscall: add __NR_copy_file_range for powerpc architecture (#3772) 2016-07-21 11:40:35 +02:00
mkdir-label.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
mkdir.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
mkdir.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
mount-util.c util-lib: make verbose_mount() grok MS_MOVE 2016-12-20 20:00:09 +01:00
mount-util.h Modify mount_propagation_flags_from_string to return a normal int code 2016-12-17 13:57:04 -05:00
MurmurHash2.c tree-wide: minor formatting inconsistency cleanups 2016-02-23 14:20:34 -08:00
MurmurHash2.h build-sys: split internal basic/ library from shared/ 2015-06-11 10:52:46 +02:00
nss-util.h basic: fix macro definition in nss-util.h 2016-07-20 14:53:15 +02:00
ordered-set.c networkd: use an OrderedSet instead of Set to collect link domains 2016-01-26 14:42:03 +01:00
ordered-set.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
parse-util.c core: introduce parse_ip_port (#4825) 2016-12-06 12:21:45 +01:00
parse-util.h core: introduce parse_ip_port (#4825) 2016-12-06 12:21:45 +01:00
path-util.c fs-util: add flags parameter to chase_symlinks() 2016-12-01 00:25:51 +01:00
path-util.h core: rework logic to determine when we decide to add automatic deps for mounts 2016-12-14 10:13:52 +01:00
prioq.c tree-wide: use mfree more 2016-10-16 23:35:39 -04:00
prioq.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
proc-cmdline.c util-lib: various improvements to kernel command line parsing 2016-12-21 19:09:08 +01:00
proc-cmdline.h util-lib: various improvements to kernel command line parsing 2016-12-21 19:09:08 +01:00
process-util.c util-lib: rework rename_process() to be able to make use of PR_SET_MM_ARG_START 2016-12-14 18:29:30 +01:00
process-util.h util-lib: rework rename_process() to be able to make use of PR_SET_MM_ARG_START 2016-12-14 18:29:30 +01:00
random-util.c Fixed a small typo in a comment (#3514) 2016-06-12 16:42:13 +02:00
random-util.h basic: include only what we use 2015-11-30 21:51:03 +01:00
ratelimit.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
ratelimit.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
raw-clone.h util-lib: Add sparc64 support for process creation (#3348) 2016-05-29 20:03:51 -04:00
refcnt.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
replace-var.c tree-wide: use mfree more 2016-10-16 23:35:39 -04:00
replace-var.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
rlimit-util.c Rename formats-util.h to format-util.h 2016-11-07 10:15:08 -05:00
rlimit-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
rm-rf.c tree-wide: replace all readdir cycles with FOREACH_DIRENT{,_ALL} (#4853) 2016-12-09 10:04:30 +01:00
rm-rf.h util-lib: drop unnecessary NULL check 2016-12-07 18:38:41 +01:00
securebits.h build-sys: split internal basic/ library from shared/ 2015-06-11 10:52:46 +02:00
selinux-util.c tree-wide: get rid of selinux_context_t (#3732) 2016-07-15 18:44:02 +02:00
selinux-util.h selinux: always try to load the full selinux db 2016-03-01 20:39:30 -05:00
set.h basic/set: remove some spurious spaces 2016-08-04 23:53:07 -04:00
sigbus.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
sigbus.h tree-wide: place #pragma once at the same place everywhere 2016-02-20 22:42:29 +01:00
signal-util.c tree-wide: add new SIGNAL_VALID() macro-like function that validates signal numbers 2016-04-12 13:43:32 +02:00
signal-util.h tree-wide: add new SIGNAL_VALID() macro-like function that validates signal numbers 2016-04-12 13:43:32 +02:00
siphash24.c missing include added for build with -DDEBUG (#3424) 2016-06-03 12:33:12 +02:00
siphash24.h shared: make sure foo.bar and foobar result in different domain name hashes 2016-01-11 19:39:59 +01:00
smack-util.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
smack-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
socket-label.c socket_address_listen: do not rely on errno (2) 2016-03-10 09:24:08 -05:00
socket-util.c Rename formats-util.h to format-util.h 2016-11-07 10:15:08 -05:00
socket-util.h sd-device/networkd: unify code to get a socket for issuing netdev ioctls on 2016-10-06 19:04:01 +02:00
sparse-endian.h build-sys: split internal basic/ library from shared/ 2015-06-11 10:52:46 +02:00
special.h core: make the root mount perpetual too 2016-11-02 11:29:59 -06:00
stat-util.c util-lib: add new path_is_temporary_fs() API 2016-12-20 20:00:09 +01:00
stat-util.h util-lib: add new path_is_temporary_fs() API 2016-12-20 20:00:09 +01:00
stdio-util.h tree-wide: minor formatting inconsistency cleanups 2016-02-23 14:20:34 -08:00
strbuf.c tree-wide: use mfree more 2016-10-16 23:35:39 -04:00
strbuf.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
string-table.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
string-table.h string-table: make sure DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN() handles NULL strings nicely 2016-06-21 13:20:47 +02:00
string-util.c tree-wide: drop NULL sentinel from strjoin 2016-10-23 11:43:27 -04:00
string-util.h Drop FOREACH_WORD_QUOTED 2016-11-05 18:54:27 -04:00
strv.c tree-wide: use mfree more 2016-10-16 23:35:39 -04:00
strv.h strv: fix STRV_FOREACH_BACKWARDS() to be a single statement only 2016-10-07 20:14:38 +02:00
strxcpyx.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
strxcpyx.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
syslog-util.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
syslog-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
terminal-util.c core: reprint the question every 2 sec in ask_char() 2016-11-17 18:16:49 +01:00
terminal-util.h terminal-util: helper macro for highlighting functions 2016-10-17 11:48:12 -04:00
time-util.c time-util: accept "µs" as time unit, in addition to "us" (#4836) 2016-12-06 10:51:26 +01:00
time-util.h tree-wide: add PRI_[NU]SEC, and use time format strings more 2016-11-07 22:49:09 -05:00
umask-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
unaligned.h util-lib: add accessors for unaligned native endian words 2016-06-06 19:59:09 +02:00
unit-name.c tree-wide: drop NULL sentinel from strjoin 2016-10-23 11:43:27 -04:00
unit-name.h unit-name: remove spurious newline 2016-06-13 18:47:42 +02:00
user-util.c Rename formats-util.h to format-util.h 2016-11-07 10:15:08 -05:00
user-util.h core: do not fail in a container if we can't use setgroups 2016-10-06 11:49:00 +02:00
utf8.c tree-wide: make ++/-- usage consistent WRT spacing 2016-02-22 20:32:04 -08:00
utf8.h Ignore BOM in config files 2016-03-22 18:51:59 -04:00
util.c Merge pull request #4771 from keszybz/udev-property-ordering 2016-12-12 16:03:52 +01:00
util.h Rename formats-util.h to format-util.h 2016-11-07 10:15:08 -05:00
verbs.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
verbs.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
virt.c util-lib: improve container detection logic 2016-12-14 18:29:30 +01:00
virt.h detect-virt: add --private-users switch to check if a userns is active 2016-10-26 20:12:51 -04:00
web-util.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
web-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
xattr-util.c tree-wide: no need to pass excess flags to open()/openat() if O_PATH is passed 2016-03-02 00:42:49 +06:00
xattr-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
xml.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
xml.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00