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2016-12-22networkd: Rename ProxyARP to IPv4ProxyARP (#4947)Susant Sahani
Rename the arp proxy option to IPv4ProxyARP= in order to clarify its relationship to IPv4, and map to the various IPv6 options we have. Fixes: #4768
2016-12-22resolved: correctly handle non-address RR types with /etc/hosts lookups (#4808)Martin Pitt
Fix wrong condition test in manager_etc_hosts_lookup(), which caused it to return an IPv4 answer when an IPv6 question was asked, and vice versa. Also only return success if we actually found any A or AAAA record. In systemd-resolved.service(8), point out that /etc/hosts mappings only affect address-type lookups, not other types. The test case currently disables DNSSEC in resolved, as there is a bug where "-t MX" fails due to "DNSSEC validation failed" even after "downgrading to non-DNSSEC mode". This should be dropped once that bug gets fixed. Fixes #4801
2016-12-21networkd: bond support primary slave and active slave (#4873)Susant Sahani
active_slave: Specifies the new active slave for modes that support it (active-backup, balance-alb and balance-tlb). primary slave: systemd-networks currently lacks the capability to set the primary slave in an active-backup bonding. This is necessary if you prefer one interface over the other. A common example is a eth0-wlan0 bonding on a laptop where you'd want to switch to the wired connection whenever it's available. Fixes: #2837
2016-12-21machined: when renaming/removing/cloning images, always take care of ↵Lennart Poettering
.roothash file too Since nspawn looks for them, importd now downloads them, and mkosi generates them, let's make sure they also processed correctly on all machined operations.
2016-12-21test: make sure test-execute can run in a read-only environmentLennart Poettering
This makes sure we can invoke it safely from out "mkosi.build" script when mkosi is invoked for a read-only image.
2016-12-21nspawn: tweaks to /etc/resolv.conf managementLennart Poettering
Handle properly if /etc is a symlink (i.e. make sure we don't follow the symlink outside the image). Also follow /etc/resolv.conf if it is a symlink, and use the resolved path when creating a mount point and mounting (as both of these operations follow symlinks and rally shouldn't). Handle more types of read-only errors as debug-level issues.
2016-12-21nspawn: don't complain when we can't fix the timezone of read-only containersLennart Poettering
There's nothing we can do about it, hence don't complain.
2016-12-21util-lib: rework path_check_fstype() and path_is_temporary_fs() to use O_PATHLennart Poettering
Also, add tests to make sure this actually works as intended.
2016-12-21machinectl: minor indentation fixLennart Poettering
2016-12-21importd: automatically download .roothash in addition to .nspawn for raw ↵Lennart Poettering
downloads Now that nspawn looks for these files, and mkosi generates them, we should also make sure importd downloads them if it can.
2016-12-21gpt-auto-generator: enable auto-discovery logic also for verity root file ↵Lennart Poettering
systems verity block devices have two backing devices: the data partition and the hash partition. Previously the gpt auto-discovery logic would refuse working on devices with multiple backing devices, losen this up a bit, to permit them as long as the backing devices are all located on the same physical media.
2016-12-21cryptsetup: various coding style improvementsLennart Poettering
No functional changes.
2016-12-21util-lib: be stricter when decoding hex stringsLennart Poettering
If a hex string has an uneven length, generate an error instead of silently assuming a trailing '0' was in place.
2016-12-21verity: add support for setting up verity-protected root disks in the initrdLennart Poettering
This adds a generator and a small service that will look for "roothash=" on the kernel command line and use it for setting up a very partition for the root device. This provides similar functionality to nspawn's existing --roothash= switch.
2016-12-21gpt-auto-discovery: port to dissect-image.c dissectorLennart Poettering
Change the gpt auto discovery generator to use the same dissector as nspawn and the rest of the tools. This removes the separate dissector code that the generator previously had and unifies the relevant code.
2016-12-21gpt-auto-generator: drop duplicate container checkLennart Poettering
We already check for containers early in main(), no need to do this check again.
2016-12-21dissect: make using a generic partition as root partition optionalLennart Poettering
In preparation for reusing the image dissector in the GPT auto-discovery logic, only optionally fail the dissection when we can't identify a root partition. In the GPT auto-discovery we are completely fine with any kind of root, given that we run when it is already mounted and all we do is find some additional auxiliary partitions on the same disk.
2016-12-21dissect: return the GPT partition UUID, tooLennart Poettering
This is useful as we can match up the EFI UUID with the one the firmware supposedly used.
2016-12-21gpt-auto-generator: support LUKS encrypted root partitionsLennart Poettering
Previously, we supported GPT auto-discovery for /home and /srv, but not for the root partition. Add that, too. Fixes: #859
2016-12-21core: fix typoLennart Poettering
2016-12-21fstab-generator: add support for volatile bootsLennart Poettering
This adds support for a new kernel command line option "systemd.volatile=" that provides the same functionality that systemd-nspawn's --volatile= switch provides, but for host systems (i.e. systems booting with a kernel). It takes the same parameter and has the same effect. In order to implement systemd.volatile=yes a new service systemd-volatile-root.service is introduced that only runs in the initrd and rearranges the root directory as needed to become a tmpfs instance. Note that systemd.volatile=state is implemented different: it simply generates a var.mount unit file that is part of the normal boot and has no effect on the initrd execution. The way this is implemented ensures that other explicit configuration for /var can always override the effect of these options. Specifically, the var.mount unit is generated in the "late" generator directory, so that it only is in effect if nothing else overrides it.
2016-12-21shared: rework switch_root() codeLennart Poettering
Let's follow symlinks before invoking mount() on arbitrary paths, so that we won't get confused if directories are prepared with absolute symlinks. Use FOREACH_STRING() instead of NULSTR_FOREACH() as it is more readable. Don't use snprintf() for concatenating strings, let chase_symlinks() to that. Replace homegrown mount check with path_is_mount_point(). Also, change the behaviour when we encounter this: instead of unmounting the old mount point, simply leave it around and don't replace it, so that initrds can mount stuff there with different settings than we would apply. This is in-line with how we handle automatic mounts in nspawn for example. Use umount_recursive() instead of a simple umount2() for unmounting the old root, so that we actually cover really all mounts, not just the top-level one.
2016-12-21journald: don't flush to /var/log/journal before we get asked toLennart Poettering
This changes journald to not write to /var/log/journal until it received SIGUSR1 for the first time, thus having been requested to flush the runtime journal to disk. This makes the journal work nicer with systems which have the root file system writable early, but still need to rearrange /var before journald should start writing and creating files to it, for example because ACLs need to be applied first, or because /var is to be mounted from another file system, NFS or tmpfs (as is the case for systemd.volatile=state). Before this change we required setupts with /var split out to mount the root disk read-only early on, and ship an /etc/fstab that remounted it writable only after having placed /var at the right place. But even that was racy for various preparations as journald might end up accessing the file system before it was entirely set up, as soon as it was writable. With this change we make scheduling when to start writing to /var/log/journal explicit. This means persistent mode now requires systemd-journal-flush.service in the mix to work, as otherwise journald would never write to the directory. See: #1397
2016-12-21nspawn: restore --volatile=yes supportLennart Poettering
This was broken by 19caffac75a2590a0c5ebc2a0214960f8188aec7 which remounted the root directory to MS_SHARED before applying the volatile mount logic. This broke things as MS_MOVE is incompatible with MS_SHARED directory trees, and we need MS_MOVE in the volatile mount logic to rearrange the directory tree. Simply swap the order here, apply the volatile logic before we switch to MS_SHARED.
2016-12-21qutoacheck,gpt-auto-generator: trivial coding style improvementsLennart Poettering
2016-12-21util-lib: various improvements to kernel command line parsingLennart Poettering
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!
2016-12-21util-lib: read $SYSTEMD_PROC_CMDLINE if set when looking for the kernel cmdlineLennart Poettering
if we want to parse the kernel command line, let's check the $SYSTEMD_PROC_CMDLINE environment variable first. This is useful for debugging purposes.
2016-12-21networkd: vxlan rename ARPProxy to ReduceARPProxy (#4891)Susant Sahani
Fixes: #4768
2016-12-21nspawn: unref the notify event source (#4941)Evgeny Vereshchagin
Fixes: ``` sudo ./libtool --mode=execute valgrind --leak-check=full ./systemd-nspawn -D ./CONT/ -b ... ==21224== 2,444 (656 direct, 1,788 indirect) bytes in 1 blocks are definitely lost in loss record 13 of 15 ==21224== at 0x4C2FA50: calloc (vg_replace_malloc.c:711) ==21224== by 0x4F6F565: sd_event_new (sd-event.c:431) ==21224== by 0x1210BE: run (nspawn.c:3351) ==21224== by 0x123908: main (nspawn.c:3826) ==21224== ==21224== LEAK SUMMARY: ==21224== definitely lost: 656 bytes in 1 blocks ==21224== indirectly lost: 1,788 bytes in 11 blocks ==21224== possibly lost: 0 bytes in 0 blocks ==21224== still reachable: 8,344 bytes in 3 blocks ==21224== suppressed: 0 bytes in 0 blocks ``` Closes #4934
2016-12-20calendarspec: minor refactoring and style fixDouglas Christman
2016-12-20calendarspec: improve overflow handlingDouglas Christman
Check if the parsed seconds value fits in an integer *after* multiplying by USEC_PER_SEC, otherwise a large value can trigger modulo by zero during normalization.
2016-12-20ndisc: ignore invalid SLAAC prefix lengths (#4923)Jörg Thalheim
- linux does not accept prefixes for SLAAC unequal to 64 bits: http://lxr.free-electrons.com/source/net/ipv6/addrconf.c#L2741 - when networkd tries export such a route to the kernel it will get -EINVAL and set the whole device into a failed state. - this patch will make networkd ignore such prefixes for SLAAC, but process other informations which may contain other prefixes. - Note that rfc4862 does not forbid prefix length != 64 bit
2016-12-20dissect: optionally, only look for GPT partition tables, nothing elseLennart Poettering
This is useful for reusing the dissector logic in the gpt-auto-discovery logic: there we really don't want to use MBR or naked file systems as root device.
2016-12-20util-lib: make verbose_mount() grok MS_MOVELennart Poettering
Let's print a proper message if we see MS_MOVE.
2016-12-20firstboot: add kernel cmdline option to disable firstboot wizardLennart Poettering
If booting with systemd.firstboot=0 the wizard will be skipped.
2016-12-20core: modernize the SwitchRoot() bus method a bitLennart Poettering
Let's more verbose error messages when validating the input parameters fails. Also, call path_is_os_tree() properly, as it doesn't return a boolean, but possibly also an error. Finally, check for the existance of the new init process with chase_symlinks() to properly handle possible symlinks on the init binary (which might actually be pretty likely).
2016-12-20util-lib: add new path_is_temporary_fs() APILennart Poettering
As simple wrapper around fd_is_temporary_fs().
2016-12-20gpt-auto-generator: rename add_boot() → add_esp()Lennart Poettering
After all, the call doesn't necessarily mount /boot anymore, but possibly /efi now.
2016-12-20tree-wide: always invoke setmntent() with "re" modeLennart Poettering
Let's make sure O_CLOEXEC is set for the file descriptor.
2016-12-20util-lib: make sure fd_check_fstype() opens files with O_CLOEXECLennart Poettering
Also, O_NOCTTY is a safer bet, let's add that too.
2016-12-20core: minor coding style/wording fixesLennart Poettering
2016-12-20util-lib: beef path_is_os_tree() up a bitLennart Poettering
Let's use chase_symlinks() when looking for /etc/os-release and /usr/lib/os-release as these files might be symlinks (and actually are IRL on some distros).
2016-12-20util-lib: accept invoking chase_symlinks() with a NULL return parameterLennart Poettering
Let's permit invoking chase_symlinks() with a NULL return parameter. If so, the resolved name is not returned, and call is useful for checking for existance of a file, without actually returning its ultimate path.
2016-12-20core: add comment why we don't bother with MS_SHARED remounting of / in ↵Lennart Poettering
containers
2016-12-20shared: use uid_is_valid() for checking validity of UIDsLennart Poettering
2016-12-20nspawn: split out VolatileMode definitionsLennart Poettering
This moves the VolatileMode enum and its helper functions to src/shared/. This is useful to then reuse them to implement systemd.volatile= in a later commit.
2016-12-20Merge pull request #4904 from dobyrch/calendar-range-stepLennart Poettering
calendarspec: allow repetition values with ranges
2016-12-20systemctl: do not segfault when we cannot find template unit (#4915)Zbigniew Jędrzejewski-Szmek
Core was generated by `systemctl cat test@.target test@.service'. Program terminated with signal SIGSEGV, Segmentation fault. 32 movdqu (%rdi), %xmm0 (gdb) bt -0 strrchr () at ../sysdeps/x86_64/strrchr.S:32 -1 0x00007f57fdf837fe in __GI___basename (filename=0x0) at basename.c:24 -2 0x000055b8a77d0d91 in unit_find_paths (bus=0x55b8a9242f90, unit_name=0x55b8a92428f0 "test@.service", lp=0x7ffdc9070400, fragment_path=0x7ffdc90703e0, dropin_paths=0x7ffdc90703e8) at src/systemctl/systemctl.c:2584 -3 0x000055b8a77dbae5 in cat (argc=3, argv=0x7ffdc9070678, userdata=0x0) at src/systemctl/systemctl.c:5324 -4 0x00007f57fe55fc6b in dispatch_verb (argc=5, argv=0x7ffdc9070668, verbs=0x55b8a77f1c60 <verbs>, userdata=0x0) at src/basic/verbs.c:92 -5 0x000055b8a77e477f in systemctl_main (argc=5, argv=0x7ffdc9070668) at src/systemctl/systemctl.c:8141 -6 0x000055b8a77e5572 in main (argc=5, argv=0x7ffdc9070668) at src/systemctl/systemctl.c:8412 The right behaviour is not easy in this case. Implement some "sensible" logic. Fixes #4912.
2016-12-19networkd-ndisc: handle missing mtu gracefully (#4913)Jörg Thalheim
At least bird's implementation of router advertisement does not set MTU option by default (instead it supplies an option to the user). In this case just leave MTU as it is.
2016-12-18core: downgrade "Time has been changed" to debug (#4906)Zbigniew Jędrzejewski-Szmek
That message is emitted by every systemd instance on every resume: Dec 06 08:03:38 laptop systemd[1]: Time has been changed Dec 06 08:03:38 laptop systemd[823]: Time has been changed Dec 06 08:03:38 laptop systemd[916]: Time has been changed Dec 07 08:00:32 laptop systemd[1]: Time has been changed Dec 07 08:00:32 laptop systemd[823]: Time has been changed Dec 07 08:00:32 laptop systemd[916]: Time has been changed -- Reboot -- Dec 07 08:02:46 laptop systemd[836]: Time has been changed Dec 07 08:02:46 laptop systemd[1]: Time has been changed Dec 07 08:02:46 laptop systemd[926]: Time has been changed Dec 07 19:48:12 laptop systemd[1]: Time has been changed Dec 07 19:48:12 laptop systemd[836]: Time has been changed Dec 07 19:48:12 laptop systemd[926]: Time has been changed ... Fixes #4896.