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* terminal-util: don't assume errno is correctly set when using isatty_safe()Lennart Poettering2024-08-201-1/+1
| | | | | | | | | let's instead generate ENOTTY on our own. This is more correct with out coding style (since we generally do not propagate errors via errno), and also addresses #34039 as side effect. (#34039 really needs to be fixed in musl though, too, this is just a work-around as side-effect). Fixes: #34039
* use FOREACH_ELEMENTMatteo Croce2024-04-181-1/+1
| | | | | | | | Use FOREACH_ELEMENT where possible. Generated with this command, and checked manually: git grep -l 'FOREACH_ARRAY.*ELEMENTSOF' | \ xargs sed -ri 's/FOREACH_ARRAY\((.*), (.*), (ELEMENTSOF.*)\)/FOREACH_ELEMENT(\1, \2)/'
* various: clean up isatty() handlingMike Yuan2023-12-221-3/+2
| | | | As per https://github.com/systemd/systemd/pull/30547#discussion_r1434371627
* tree-wide: port various parsers over to read_stripped_line()Lennart Poettering2023-10-171-5/+3
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* meson: move declarations of several generatorsYu Watanabe2023-07-311-0/+8
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* generator: run various generators only run on the host, not in initrdLennart Poettering2023-07-041-0/+6
| | | | | These 5 generators only make sense on the host,not in the initrd, hence if they end up in the initrd anyway, make them exit quickly.
* getty-generator: minor modernizationsLennart Poettering2023-07-041-5/+3
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* getty-generator: allow configuring additional gettys via credentialsLennart Poettering2023-07-041-1/+56
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* Revert "getty-generator: Use device hotplug to instantiate virtualizer consoles"Lennart Poettering2023-04-181-17/+13
| | | | This reverts commit e7e6ce5f8d467304731a98e8a140e69713f1bf07.
* getty-generator: Use device hotplug to instantiate virtualizer consolesDaan De Meyer2023-04-181-13/+17
| | | | | | | If getty-generator runs in the initrd, the corresponding tty might not have been instantiated yet in /dev, which means a serial getty is not spawned on it. Instead, let's instantiate the serial-getty when the device appears so that it always gets instantiated.
* tree-wide: use -EBADF for fd initializationZbigniew Jędrzejewski-Szmek2022-12-191-1/+1
| | | | | | | | | | | | | | | | -1 was used everywhere, but -EBADF or -EBADFD started being used in various places. Let's make things consistent in the new style. Note that there are two candidates: EBADF 9 Bad file descriptor EBADFD 77 File descriptor in bad state Since we're initializating the fd, we're just assigning a value that means "no fd yet", so it's just a bad file descriptor, and the first errno fits better. If instead we had a valid file descriptor that became invalid because of some operation or state change, the other errno would fit better. In some places, initialization is dropped if unnecessary.
* basic: rename util.h to logarithm.hZbigniew Jędrzejewski-Szmek2022-11-081-1/+0
| | | | | util.h is now about logarithms only, so we can rename it. Many files included util.h for no apparent reason… Those includes are dropped.
* strv: declare iterator of FOREACH_STRING() in the loopZbigniew Jędrzejewski-Szmek2022-03-231-3/+1
| | | | | | | | | | | Same idea as 03677889f0ef42cdc534bf3b31265a054b20a354. No functional change intended. The type of the iterator is generally changed to be 'const char*' instead of 'char*'. Despite the type commonly used, modifying the string was not allowed. I adjusted the naming of some short variables for clarity and reduced the scope of some variable declarations in code that was being touched anyway.
* getty-generator: add kernel cmdline and env vars to disable itLuca Boccassi2021-11-181-0/+40
| | | | | systemd.getty_auto/rd.systemd.getty_auto/SYSTEMD_GETTY_AUTO can be used to disable the generator. Enabled by default.
* shared: clean up mkdir.h/label.h situationLennart Poettering2021-11-161-2/+2
| | | | | | | | | | Previously the mkdir_label() family of calls was implemented in src/shared/mkdir-label.c but its functions partly declared ins src/shared/label.h and partly in src/basic/mkdir.h (!!). That's weird (and wrong). Let's clean this up, and add a proper mkdir-label.h matching the .c file.
* meson: use jinja2 for rpm templatesZbigniew Jędrzejewski-Szmek2021-05-191-1/+1
| | | | | | | The naming of variables is very inconsistent. I tried to use more modern style naming (UNDERSCORED_TITLE_CASE), but I didn't change existing names too much. Only SYSTEM_DATA_UNIT_PATH is renamed to SYSTEM_DATA_UNIT_DIR to match SYSTEM_CONFIG_UNIT_DIR.
* license: LGPL-2.1+ -> LGPL-2.1-or-laterYu Watanabe2020-11-091-1/+1
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* getty-generator: use extract_first_word()Zbigniew Jędrzejewski-Szmek2020-09-091-59/+55
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* tree-wide: drop string.h when string-util.h or friends are includedYu Watanabe2019-11-031-1/+0
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* tree-wide: make use of errno_or_else() everywhereLennart Poettering2019-07-111-1/+2
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* tree-wide: drop alloca() in loopYu Watanabe2019-06-191-2/+4
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* getty-generator: use the new main function definerZbigniew Jędrzejewski-Szmek2018-12-121-37/+30
| | | | | I changed the nulstr loop to a normal FOREACH_STRING loop. It seems clearer this way.
* generators: configure logging before the first useZbigniew Jędrzejewski-Szmek2018-12-121-2/+2
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* generators: drop umask callsZbigniew Jędrzejewski-Szmek2018-11-211-2/+0
| | | | | | | | | systemd already sets the umask (see e3b8d0637dd755b3426f3363b2cdad63f738116c). When running under systemd, we don't need to set it. And when *not* running under systemd, for example during development, there is no reason to override the user config. Let's just drop those calls. $ git grep -e 'umask\(' -l 'src/*generator*' |xargs perl -i -0pe 's|^[^\n]*umask\([^\n]+\n\n||gms'
* generators: introduce a common implementation for the log setup boilerplateLennart Poettering2018-11-201-4/+2
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* tree-wide: remove Lennart's copyright linesLennart Poettering2018-06-141-3/+0
| | | | | | | | | | | These lines are generally out-of-date, incomplete and unnecessary. With SPDX and git repository much more accurate and fine grained information about licensing and authorship is available, hence let's drop the per-file copyright notice. Of course, removing copyright lines of others is problematic, hence this commit only removes my own lines and leaves all others untouched. It might be nicer if sooner or later those could go away too, making git the only and accurate source of authorship information.
* tree-wide: drop 'This file is part of systemd' blurbLennart Poettering2018-06-141-2/+0
| | | | | | | | | | | | | | | | This part of the copyright blurb stems from the GPL use recommendations: https://www.gnu.org/licenses/gpl-howto.en.html The concept appears to originate in times where version control was per file, instead of per tree, and was a way to glue the files together. Ultimately, we nowadays don't live in that world anymore, and this information is entirely useless anyway, as people are very welcome to copy these files into any projects they like, and they shouldn't have to change bits that are part of our copyright header for that. hence, let's just get rid of this old cruft, and shorten our codebase a bit.
* tree-wide: drop license boilerplateZbigniew Jędrzejewski-Szmek2018-04-061-13/+0
| | | | | | | | | | Files which are installed as-is (any .service and other unit files, .conf files, .policy files, etc), are left as is. My assumption is that SPDX identifiers are not yet that well known, so it's better to retain the extended header to avoid any doubt. I also kept any copyright lines. We can probably remove them, but it'd nice to obtain explicit acks from all involved authors before doing that.
* log: remove LOG_TARGET_SAFE pseudo log targetLennart Poettering2018-01-241-1/+2
| | | | | | | | | | | | | This removes LOG_TARGET_SAFE. It's made redundant by the new "prohibit-ipc" logging flag, as it used to have a similar effect: avoid logging to the journal/syslog, i.e. any local services in order to avoid deadlocks when we lock from PID 1 or its utility processes (such as generators). All previous users of LOG_TARGET_SAFE are switched over to the new setting. This makes things a bit safer for all, as not even the SYSTEMD_LOG_TARGET env var can be used to accidentally log to the journal anymore in these programs.
* Add SPDX license identifiers to source files under the LGPLZbigniew Jędrzejewski-Szmek2017-11-191-0/+1
| | | | | This follows what the kernel is doing, c.f. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5fd54ace4721fc5ce2bb5aef6318fcf17f421460.
* getty-generator: shift relevant comment to above tty_is_vc()Alan Jenkins2017-08-071-4/+4
| | | | | Comments typically go immediately above the code to implement the described behaviour. Putting it below confused me for a moment.
* build-sys: drop automake supportZbigniew Jędrzejewski-Szmek2017-07-181-1/+0
| | | | | v2: - also mention m4
* tree-wide: remove Emacs lines from all filesDaniel Mack2016-02-101-2/+0
| | | | | This should be handled fine now by .dir-locals.el, so need to carry that stuff in every file.
* tree-wide: check if errno is greater then zeroZbigniew Jędrzejewski-Szmek2016-01-131-1/+1
| | | | | | | | | | | | | | gcc is confused by the common idiom of return errno ? -errno : -ESOMETHING and thinks a positive value may be returned. Replace this condition with errno > 0 to help gcc and avoid many spurious warnings. I filed a gcc rfe a long time ago, but it hard to say if it will ever be implemented [1]. Both conventions were used in the codebase, this change makes things more consistent. This is a follow up to bcb161b0230f. [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61846
* util-lib: split out allocation calls into alloc-util.[ch]Lennart Poettering2015-10-271-0/+1
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* util-lib: split out fd-related operations into fd-util.[ch]Lennart Poettering2015-10-251-0/+1
| | | | | There are more than enough to deserve their own .c file, hence move them over.
* util-lib: split our string related calls from util.[ch] into its own file ↵Lennart Poettering2015-10-241-6/+7
| | | | | | | | | | | | | | string-util.[ch] There are more than enough calls doing string manipulations to deserve its own files, hence do something about it. This patch also sorts the #include blocks of all files that needed to be updated, according to the sorting suggestions from CODING_STYLE. Since pretty much every file needs our string manipulation functions this effectively means that most files have sorted #include blocks now. Also touches a few unrelated include files.
* basic: rework virtualization detection APILennart Poettering2015-09-071-1/+1
| | | | | | Introduce a proper enum, and don't pass around string ids anymore. This simplifies things quite a bit, and makes virtualization detection more similar to architecture detection.
* core: rework unit name validation and manipulation logicLennart Poettering2015-05-061-11/+11
| | | | | | | | | | | | | | | A variety of changes: - Make sure all our calls distuingish OOM from other errors if OOM is not the only error possible. - Be much stricter when parsing escaped paths, do not accept trailing or leading escaped slashes. - Change unit validation to take a bit mask for allowing plain names, instance names or template names or an combination thereof. - Refuse manipulating invalid unit name
* shared: add terminal-util.[ch]Ronny Chevalier2015-04-111-0/+1
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* shared: add process-util.[ch]Ronny Chevalier2015-04-101-0/+1
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* util: rework strappenda(), and rename it strjoina()Lennart Poettering2015-02-031-4/+4
| | | | | | After all it is now much more like strjoin() than strappend(). At the same time, add support for NULL sentinels, even if they are normally not necessary.
* treewide: use log_*_errno whenever %m is in the format stringMichal Schmidt2014-11-281-1/+1
| | | | | | | | | | | If the format string contains %m, clearly errno must have a meaningful value, so we might as well use log_*_errno to have ERRNO= logged. Using: find . -name '*.[ch]' | xargs sed -r -i -e \ 's/log_(debug|info|notice|warning|error|emergency)\((".*%m.*")/log_\1_errno(errno, \2/' Plus some whitespace, linewrap, and indent adjustments.
* util: allow strappenda to take any number of argsDave Reisner2014-08-141-1/+1
| | | | | This makes strappenda3 redundant, so we remove its usage and definition. Add a few tests along the way for sanity.
* Reject invalid quoted stringsZbigniew Jędrzejewski-Szmek2014-07-311-6/+6
| | | | | | | | | | | | | | | | | | | | | | String which ended in an unfinished quote were accepted, potentially with bad memory accesses. Reject anything which ends in a unfished quote, or contains non-whitespace characters right after the closing quote. _FOREACH_WORD now returns the invalid character in *state. But this return value is not checked anywhere yet. Also, make 'word' and 'state' variables const pointers, and rename 'w' to 'word' in various places. Things are easier to read if the same name is used consistently. mbiebl_> am I correct that something like this doesn't work mbiebl_> ExecStart=/usr/bin/encfs --extpass='/bin/systemd-ask-passwd "Unlock EncFS"' mbiebl_> systemd seems to strip of the quotes mbiebl_> systemctl status shows mbiebl_> ExecStart=/usr/bin/encfs --extpass='/bin/systemd-ask-password Unlock EncFS $RootDir $MountPoint mbiebl_> which is pretty weird
* getty-generator: properly escape instance namesZbigniew Jędrzejewski-Szmek2014-06-201-2/+2
| | | | | | | | Otherwise the add_symlink() function tries to make directories for each slash even for the slash after the @ symbol in the final link name, failing for /dev/3270/tty1. Based on a patch by Werner Fink <werner@suse.de>.
* getty-generator: use strappendaZbigniew Jędrzejewski-Szmek2014-06-201-15/+5
| | | | | Allocating on the stack should be fine for the fixed number of items.
* getty: Start getty on 3270 terminals available on Linux on System zHendrik Brueckner2014-03-131-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the first 3270 terminal device that is associated with the Linux preferred console to the list of virtualization consoles. This is required to automatically start a getty if the conmode=3270 kernel parameter is specified for Linux on z/VM instances. Note that a queued upstream patch also enable the 3270 terminal device if it is associated with the Linux preferred console. How To successfully start agetty on a 3270 terminal, a change in the agetty parameter order is required. Previously, agetty would started like this: /sbin/agetty --keep-baud 3270/tty1 115200,38400,9600 TERM The agetty program interprets the "3270/tty1" as baud rate and fails to start with the "bad speed: 3270/tty1" error message. Fixing this in agetty is more complex rather than reordering the command line parameters like this: /sbin/agetty --keep-baud 115200,38400,9600 3270/tty1 TERM According to agetty sources and "agetty --help", agetty accepts the "tty", "baudrate tty", and "tty baudrate" specifications. P.S. The "tty: Set correct tty name in 'active' sysfs attribute" introduces a change to display the terminal device which is associated with the Linux preferred console. This change helps to let systemd handle this particular case only. Without the changes of this commit, no additional 3270 terminal device can be managed by systemd. https://git.kernel.org/cgit/linux/kernel/git/gregkh/tty.git/commit/?id=723abd87f6e536f1353c8f64f621520bc29523a3
* getty-generator: verify ttys before we make use of themLennart Poettering2014-02-241-0/+28
| | | | | | | | | | | | | | | | The ttyS[0-3] devices are weird. They may be enumerated, but when one actually tries to open and use them they return EIO, because they don't actually exist. Because they may be enumerated they may be specified on the kernel command line as console=. And some people do that as default. As response to that we'll spawn a getty on the tty that will quickly fail, and we retry a couple of time before giving up. That is quite noisy. With this new change we will validate all serial terminals configured with console= on the kernel cmdline before adding gettys on them, and remove the invalid ones. THis should remove the noise later on. This should make Eric Paris happy!
* s390/getty-generator: initialize essential system terminals/consolesHendrik Brueckner2014-01-311-1/+3
| | | | | | | | | | | | | | | | | | | | | | Ensure to start getty programs on all essential system consoles on Linux on System z. Add these essential devices to the list of virtualization_consoles to always generate getty configurations. For the sake of completion, the list of essential consoles is: /dev/sclp_line0 - Operating system messages applet (LPAR) /dev/ttysclp0 - Integrated ASCII console applet (z/VM and LPAR) /dev/ttyS0 - Already handled by systemd (3215 console on z/VM) /dev/hvc0 - Already handled by systemd (IUCV HVC terminal on z/VM) Depending on the environment, z/VM or LPAR, only a subset of these terminals are available. See also RH BZ 860158[1] "Cannot login via Operating System Console into RHEL7 instance installed on a LPAR". This bugzilla actually blocks the installation of Linux on System z instances in LPAR mode. [1] https://bugzilla.redhat.com/show_bug.cgi?id=860158
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