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* util: split out namespace related stuff into a new namespace-util.[ch] pairLennart Poettering2019-03-131-0/+1
| | | | Just some minor reorganiztion.
* Split out part of mount-util.c into mountpoint-util.cZbigniew Jędrzejewski-Szmek2018-11-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The idea is that anything which is related to actually manipulating mounts is in mount-util.c, but functions for mountpoint introspection are moved to the new file. Anything which requires libmount must be in mount-util.c. This was supposed to be a preparation for further changes, with no functional difference, but it results in a significant change in linkage: $ ldd build/libnss_*.so.2 (before) build/libnss_myhostname.so.2: linux-vdso.so.1 (0x00007fff77bf5000) librt.so.1 => /lib64/librt.so.1 (0x00007f4bbb7b2000) libmount.so.1 => /lib64/libmount.so.1 (0x00007f4bbb755000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f4bbb734000) libc.so.6 => /lib64/libc.so.6 (0x00007f4bbb56e000) /lib64/ld-linux-x86-64.so.2 (0x00007f4bbb8c1000) libblkid.so.1 => /lib64/libblkid.so.1 (0x00007f4bbb51b000) libuuid.so.1 => /lib64/libuuid.so.1 (0x00007f4bbb512000) libselinux.so.1 => /lib64/libselinux.so.1 (0x00007f4bbb4e3000) libpcre2-8.so.0 => /lib64/libpcre2-8.so.0 (0x00007f4bbb45e000) libdl.so.2 => /lib64/libdl.so.2 (0x00007f4bbb458000) build/libnss_mymachines.so.2: linux-vdso.so.1 (0x00007ffc19cc0000) librt.so.1 => /lib64/librt.so.1 (0x00007fdecb74b000) libcap.so.2 => /lib64/libcap.so.2 (0x00007fdecb744000) libmount.so.1 => /lib64/libmount.so.1 (0x00007fdecb6e7000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fdecb6c6000) libc.so.6 => /lib64/libc.so.6 (0x00007fdecb500000) /lib64/ld-linux-x86-64.so.2 (0x00007fdecb8a9000) libblkid.so.1 => /lib64/libblkid.so.1 (0x00007fdecb4ad000) libuuid.so.1 => /lib64/libuuid.so.1 (0x00007fdecb4a2000) libselinux.so.1 => /lib64/libselinux.so.1 (0x00007fdecb475000) libpcre2-8.so.0 => /lib64/libpcre2-8.so.0 (0x00007fdecb3f0000) libdl.so.2 => /lib64/libdl.so.2 (0x00007fdecb3ea000) build/libnss_resolve.so.2: linux-vdso.so.1 (0x00007ffe8ef8e000) librt.so.1 => /lib64/librt.so.1 (0x00007fcf314bd000) libcap.so.2 => /lib64/libcap.so.2 (0x00007fcf314b6000) libmount.so.1 => /lib64/libmount.so.1 (0x00007fcf31459000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fcf31438000) libc.so.6 => /lib64/libc.so.6 (0x00007fcf31272000) /lib64/ld-linux-x86-64.so.2 (0x00007fcf31615000) libblkid.so.1 => /lib64/libblkid.so.1 (0x00007fcf3121f000) libuuid.so.1 => /lib64/libuuid.so.1 (0x00007fcf31214000) libselinux.so.1 => /lib64/libselinux.so.1 (0x00007fcf311e7000) libpcre2-8.so.0 => /lib64/libpcre2-8.so.0 (0x00007fcf31162000) libdl.so.2 => /lib64/libdl.so.2 (0x00007fcf3115c000) build/libnss_systemd.so.2: linux-vdso.so.1 (0x00007ffda6d17000) librt.so.1 => /lib64/librt.so.1 (0x00007f610b83c000) libcap.so.2 => /lib64/libcap.so.2 (0x00007f610b835000) libmount.so.1 => /lib64/libmount.so.1 (0x00007f610b7d8000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f610b7b7000) libc.so.6 => /lib64/libc.so.6 (0x00007f610b5f1000) /lib64/ld-linux-x86-64.so.2 (0x00007f610b995000) libblkid.so.1 => /lib64/libblkid.so.1 (0x00007f610b59e000) libuuid.so.1 => /lib64/libuuid.so.1 (0x00007f610b593000) libselinux.so.1 => /lib64/libselinux.so.1 (0x00007f610b566000) libpcre2-8.so.0 => /lib64/libpcre2-8.so.0 (0x00007f610b4e1000) libdl.so.2 => /lib64/libdl.so.2 (0x00007f610b4db000) (after) build/libnss_myhostname.so.2: linux-vdso.so.1 (0x00007fff0b5e2000) librt.so.1 => /lib64/librt.so.1 (0x00007fde0c328000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fde0c307000) libc.so.6 => /lib64/libc.so.6 (0x00007fde0c141000) /lib64/ld-linux-x86-64.so.2 (0x00007fde0c435000) build/libnss_mymachines.so.2: linux-vdso.so.1 (0x00007ffdc30a7000) librt.so.1 => /lib64/librt.so.1 (0x00007f06ecabb000) libcap.so.2 => /lib64/libcap.so.2 (0x00007f06ecab4000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f06eca93000) libc.so.6 => /lib64/libc.so.6 (0x00007f06ec8cd000) /lib64/ld-linux-x86-64.so.2 (0x00007f06ecc15000) build/libnss_resolve.so.2: linux-vdso.so.1 (0x00007ffe95747000) librt.so.1 => /lib64/librt.so.1 (0x00007fa56a80f000) libcap.so.2 => /lib64/libcap.so.2 (0x00007fa56a808000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fa56a7e7000) libc.so.6 => /lib64/libc.so.6 (0x00007fa56a621000) /lib64/ld-linux-x86-64.so.2 (0x00007fa56a964000) build/libnss_systemd.so.2: linux-vdso.so.1 (0x00007ffe67b51000) librt.so.1 => /lib64/librt.so.1 (0x00007ffb32113000) libcap.so.2 => /lib64/libcap.so.2 (0x00007ffb3210c000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007ffb320eb000) libc.so.6 => /lib64/libc.so.6 (0x00007ffb31f25000) /lib64/ld-linux-x86-64.so.2 (0x00007ffb3226a000) I don't quite understand what is going on here, but let's not be too picky.
* coccinelle: make use of SYNTHETIC_ERRNOZbigniew Jędrzejewski-Szmek2018-11-221-4/+4
| | | | | | | | | | | Ideally, coccinelle would strip unnecessary braces too. But I do not see any option in coccinelle for this, so instead, I edited the patch text using search&replace to remove the braces. Unfortunately this is not fully automatic, in particular it didn't deal well with if-else-if-else blocks and ifdefs, so there is an increased likelikehood be some bugs in such spots. I also removed part of the patch that coccinelle generated for udev, where we returns -1 for failure. This should be fixed independently.
* core: include error cause in log messageYu Watanabe2018-10-201-4/+3
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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.
* machine-id-setup: use return log_error… patternZbigniew Jędrzejewski-Szmek2017-12-191-4/+3
| | | | | No functional difference, but this way it's clearer that the original errno value is returned.
* 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.
* core: machine_id_setup overwrites broken machine-idEvgeny Vereshchagin2016-12-131-3/+7
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* tree-wide: stop using canonicalize_file_name(), use chase_symlinks() insteadLennart Poettering2016-12-011-1/+1
| | | | | | | | Let's use chase_symlinks() everywhere, and stop using GNU canonicalize_file_name() everywhere. For most cases this should not change behaviour, however increase exposure of our function to get better tested. Most importantly in a few cases (most notably nspawn) it can take the correct root directory into account when chasing symlinks.
* core: rework machine-id-setup.c to use the calls from id128-util.[ch]Lennart Poettering2016-07-221-152/+47
| | | | | This allows us to delete quite a bit of code and make the whole thing a lot shorter.
* machine-id-setup: port machine_id_commit() to new id128-util.c APIsLennart Poettering2016-07-221-13/+11
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* sd-id128: split UUID file read/write code into new id128-util.[ch]Lennart Poettering2016-07-221-0/+1
| | | | | | | | | | | | We currently have code to read and write files containing UUIDs at various places. Unify this in id128-util.[ch], and move some other stuff there too. The new files are located in src/libsystemd/sd-id128/ (instead of src/shared/), because they are actually the backend of sd_id128_get_machine() and sd_id128_get_boot(). In follow-up patches we can use this reduce the code in nspawn and machine-id-setup by adopted the common implementation.
* treewide: fix typos and remove accidental repetition of wordsTorstein Husebø2016-07-111-1/+1
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* machine-id-setup: explicitly fsync() the machine ID after writingLennart Poettering2016-04-221-2/+11
| | | | | | | | | | | As discussed here: https://github.com/systemd/systemd/issues/2619#issuecomment-184670042 Explicitly syncing /etc/machine-id after writing it, is probably a good idea, since it has a strong "commit" character and is generally a one-time thing. Fixes #2619.
* basic/util: silence stupid gcc warnings about unitialized variableZbigniew Jędrzejewski-Szmek2016-04-131-4/+5
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* core: be more paranoid when mixing umask and fopen()Lennart Poettering2016-04-121-2/+1
| | | | | Let's be extra careful with the umask when we use simple fopen(), as this creates files with 0777 by default.
* machine-id-setup: simplify by using prefix_rootaMichal Sekletar2016-04-061-24/+4
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* 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.
* core: Add machine-id settingNils Carlson2016-01-121-8/+15
| | | | | | | | | | Allow for overriding all other machine-ids which may be present on the system using a kernel command line systemd.machine_id or --machine-id= option. This is especially useful for network booted systems where the machine-id needs to be static, or for containers where a specific machine-id is wanted.
* util-lib: split out allocation calls into alloc-util.[ch]Lennart Poettering2015-10-271-0/+1
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* util-lib: split out umask-related code to umask-util.hLennart Poettering2015-10-271-0/+1
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* util-lib: split stat()/statfs()/stavfs() related calls into stat-util.[ch]Lennart Poettering2015-10-271-0/+1
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* util-lib: move a number of fs operations into fs-util.[ch]Lennart Poettering2015-10-271-0/+1
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* util-lib: move mount related utility calls to mount-util.[ch]Lennart Poettering2015-10-271-1/+2
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* util-lib: split out hex/dec/oct encoding/decoding into its own fileLennart Poettering2015-10-271-0/+1
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* util-lib: split out IO related calls to io-util.[ch]Lennart Poettering2015-10-261-0/+1
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* util-lib: split out fd-related operations into fd-util.[ch]Lennart Poettering2015-10-251-1/+2
| | | | | 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 Poettering2015-10-241-0/+1
| | | | | | | | | | | | | | 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: split out cpu set specific APIs into cpu-set-util.[ch]Lennart Poettering2015-09-301-9/+10
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* basic: rework virtualization detection APILennart Poettering2015-09-071-16/+14
| | | | | | 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.
* namespace helpers: Allow entering a UID namespaceRichard Maw2015-08-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To be able to use `systemd-run` or `machinectl login` on a container that is in a private user namespace, the sub-process must have entered the user namespace before connecting to the container's D-Bus, otherwise the UID and GID in the peer credentials are garbage. So we extend namespace_open and namespace_enter to support UID namespaces, and we enter the UID namespace in bus_container_connect_{socket,kernel}. namespace_open will degrade to a no-op if user namespaces are not enabled in the kernel. Special handling is required for the setns call in namespace_enter with a user namespace, since transitioning to your own namespace is forbidden, as it would result in re-entering your user namespace as root. Arguably it may be valid to check this at the call site, rather than inside namespace_enter, but it is less code to do it inside, and if the intention of calling namespace_enter is to *be* in the target namespace, rather than to transition to the target namespace, it is a reasonable approach. The check for whether the user namespace is the same must happen before entering namespaces, as we may not be able to access /proc during the intermediate transition stage. We can't instead attempt to enter the user namespace and then ignore the failure from it being the same namespace, since the error code is not distinct, and we can't compare namespaces while mid-transition.
* fileio: consolidate write_string_file*()Daniel Mack2015-07-061-1/+1
| | | | | | | Merge write_string_file(), write_string_file_no_create() and write_string_file_atomic() into write_string_file() and provide a flags mask that allows combinations of atomic writing, newline appending and automatic file creation. Change all users accordingly.
* path-util: Change path_is_mount_point() symlink arg from bool to flagsMartin Pitt2015-05-291-1/+1
| | | | | This makes path_is_mount_point() consistent with fd_is_mount_point() wrt. flags.
* shared: add process-util.[ch]Ronny Chevalier2015-04-101-0/+1
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* util: rework rm_rf() logicLennart Poettering2015-04-061-1/+1
| | | | | | | | - Move to its own file rm-rf.c - Change parameters into a single flags parameter - Remove "honour sticky" logic, it's unused these days
* machine-id-setup: simplificationsLennart Poettering2015-03-101-142/+140
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* Introduce loop_read_exact helperZbigniew Jędrzejewski-Szmek2015-03-091-8/+7
| | | | | | | | Usually when using loop_read(), we want to read the full buffer. Add a helper that mirrors loop_write(), and returns 0 when full buffer was read, and an error otherwise. Use -ENODATA for the short read, to distinguish it from a read error.
* remove unused includesThomas Hindoe Paaboel Andersen2015-02-231-1/+0
| | | | | | This patch removes includes that are not used. The removals were found with include-what-you-use which checks if any of the symbols from a header is in use.
* 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.
* tree-wide: spelling fixesVeres Lajos2014-12-301-1/+1
| | | | | | | https://github.com/vlajos/misspell_fixer https://github.com/torstehu/systemd/commit/b6fdeb618cf2f3ce1645b3315f15f482710c7ffa Thanks to Torstein Husebo <torstein@huseboe.net>.
* treewide: sanitize loop_writeZbigniew Jędrzejewski-Szmek2014-12-091-3/+2
| | | | | | | loop_write() didn't follow the usual systemd rules and returned status partially in errno and required extensive checks from callers. Some of the callers dealt with this properly, but many did not, treating partial writes as successful. Simplify things by conforming to usual rules.
* machine-id-setup: add a machine_id_commit call to commit on disk a transient ↵Didier Roche2014-12-031-0/+79
| | | | | | | | | machine-id If /etc was read only at boot time with an empty /etc/machine-id, the latter will be mounted as a tmpfs and get reset at each boot. If the system becomes rw later, this functionality enables to commit in a race-free manner the transient machine-id to disk.
* machine-id-setup: casting const away is ugly, let's not do it if there's no ↵Lennart Poettering2014-12-031-4/+6
| | | | reason to
* machine-id-setup: Factorize some machine-id-setup functions to be reusedDidier Roche2014-12-031-10/+34
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* treewide: another round of simplificationsMichal Schmidt2014-11-281-4/+2
| | | | | Using the same scripts as in f647962d64e "treewide: yet more log_*_errno + return simplifications".
* treewide: use log_*_errno whenever %m is in the format stringMichal Schmidt2014-11-281-4/+4
| | | | | | | | | | | 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.
* treewide: more log_*_errno + return simplificationsMichal Schmidt2014-11-281-4/+2
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* treewide: no need to negate errno for log_*_errno()Michal Schmidt2014-11-281-2/+2
| | | | It corrrectly handles both positive and negative errno values.
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