Commit Graph
3207 Commits
Author SHA1 Message Date
Lennart Poettering 84190644ff efi: add more logging for all EFI variable reads 2020-05-29 15:42:09 +02:00
Lennart Poettering d197c403b2 efi: explicitly update mtime of EFI variables when changing them 2020-05-29 15:41:31 +02:00
Lennart Poettering c75e7da0b5 efi: as extra paranoia NUL terminate UTF-16 strings with three NUL bytes
This is a safey net anyway, let's make it fully safe: if the data ends
on an uneven byte, then we need to complete the UTF-16 codepoint first,
before adding the final NUL byte pair. Hence let's suffix with three
NULs, instead of just two.
2020-05-29 15:41:18 +02:00
Yu Watanabe fac729f811 Merge pull request #15911 from poettering/unit-name-tighten
pid1: improve logging when we encounter a path that is too long to be converted into a mount unit name
2020-05-29 15:55:38 +09:00
Lennart Poettering f6dbcebdc2 sd-device: check netlink netns matches host netns before using monitor
Tracking down #15931 confused the hell out of me, since running homed in
gdb from the command line worked fine, but doing so as a service failed.
Let's make this more debuggable and check if we live in the host netns
when allocating a new udev monitor.

This is just debug stuff, so that if things don't work, a quick debug
run will reveal what is going on.

That said, while we are at it, also fix unexpected closing of passed in
fd when failing.
2020-05-29 15:28:10 +09:00
Yu Watanabe 27cd09442f Merge pull request #15942 from poettering/pass-pktinfo
disable PassCredentials= on networkd netlink socket, enable NETLINK_PKTINFO instead
2020-05-29 15:23:15 +09:00
Lennart Poettering 35a3eb9bdc socket-util: add generic socket_pass_pktinfo() helper
The helper turns on the protocol specific "packet info" structure cmsg
for three relevant protocols we know.
2020-05-27 22:39:34 +02:00
Daan De Meyer 2da3dc69e7 fileio: Rename rename_and_apply_smack to rename_and_apply_smack_floor_label. 2020-05-27 18:54:25 +02:00
Daan De Meyer 90c81688ff fileio: Refactor sync_rights to take fds as arguments 2020-05-27 18:54:25 +02:00
Daan De Meyer 494735f3d0 sysusers: Move sync_rights and rename_and_apply_smack to basic 2020-05-27 18:54:25 +02:00
Lennart Poettering bb2294e454 Merge pull request #15669 from andir/systemd-ipv6-pd-subnet-id
networkd: subnet id support for ipv6 prefix delegation
2020-05-27 18:47:26 +02:00
Lennart Poettering 698564d147 efivars: log whenever an EFI variable read access is slow
This should allow us to detect slowdowns caused by EFI variable read
access a bit.
2020-05-27 08:36:07 +02:00
Lennart Poettering 4b019d2f2d tmpfiles: deal with kernel errno change if quota is not enabled
Old kernels returned EINVAL if quota was off but we tried to manipulate
it anyway. Since
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8a36e408d40606e21cd4e2dd9601004a67b14868
this changed: now ENOTCONN is returned. This of course is a kernel API
compat breakage, but let's not make a fuss and just map EINVAL to
ENOTCONN to make it recognizable the same way everywhere.

Fixes: #15896
2020-05-26 21:36:29 +02:00
Lennart Poettering 7257f717c1 Merge pull request #15920 from keszybz/userwork-proc-title
Avoid log noise when setting proc titles and some doc updates
2020-05-26 18:29:06 +02:00
Andreas Rammhold 171f625b9e in-addr-util: removed in_addr_prefix_next implementation
The in_addr_prefix_nth function does everything this function did and
more. We can substitute 100% of its users with the new function.
2020-05-26 12:41:22 +02:00
Andreas Rammhold 863b99cdd9 in-addr-util: introduce in_addr_prefix_nth 2020-05-26 12:35:49 +02:00
Zbigniew Jędrzejewski-Szmek c55104ce58 basic/process-util: only try PR_SET_MM once
userwork wants to update the title many times, and a strace is full of
attempts that fail the same way:

[pid 21765] prctl(PR_SET_NAME, "systemd-userwor"...) = 0
[pid 21765] geteuid()                   = 0
[pid 21765] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fedce329000
[pid 21765] prctl(PR_SET_MM, PR_SET_MM_ARG_START, 0x7fedce329000, 0, 0) = -1 EPERM (Operation not permitted)
[pid 21765] prctl(PR_SET_MM, PR_SET_MM_ARG_END, 0x7fedce32901d, 0, 0) = -1 EPERM (Operation not permitted)
[pid 21765] munmap(0x7fedce329000, 4096) = 0
[pid 21765] accept4(3, NULL, NULL, SOCK_CLOEXEC|SOCK_NONBLOCK) = -1 EAGAIN (Resource temporarily unavailable)
[pid 21765] prctl(PR_SET_NAME, "systemd-userwor"...) = 0
[pid 21765] geteuid()                   = 0
[pid 21765] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fedce329000
[pid 21765] prctl(PR_SET_MM, PR_SET_MM_ARG_START, 0x7fedce329000, 0, 0) = -1 EPERM (Operation not permitted)
[pid 21765] prctl(PR_SET_MM, PR_SET_MM_ARG_END, 0x7fedce329020, 0, 0) = -1 EPERM (Operation not permitted)
[pid 21765] munmap(0x7fedce329000, 4096) = 0
[pid 21765] prctl(PR_SET_NAME, "systemd-userwor"...) = 0
[pid 21765] geteuid()                   = 0
[pid 21765] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fedce329000
[pid 21765] prctl(PR_SET_MM, PR_SET_MM_ARG_START, 0x7fedce329000, 0, 0) = -1 EPERM (Operation not permitted)
[pid 21765] prctl(PR_SET_MM, PR_SET_MM_ARG_END, 0x7fedce32901d, 0, 0) = -1 EPERM (Operation not permitted)
[pid 21765] munmap(0x7fedce329000, 4096) = 0
[pid 21765] accept4(3, NULL, NULL, SOCK_CLOEXEC|SOCK_NONBLOCK) = -1 EAGAIN (Resource temporarily unavailable)
[pid 21765] prctl(PR_SET_NAME, "systemd-userwor"...) = 0
[pid 21765] geteuid()                   = 0
[pid 21765] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fedce329000
[pid 21765] prctl(PR_SET_MM, PR_SET_MM_ARG_START, 0x7fedce329000, 0, 0) = -1 EPERM (Operation not permitted)
[pid 21765] prctl(PR_SET_MM, PR_SET_MM_ARG_END, 0x7fedce329020, 0, 0) = -1 EPERM (Operation not permitted)
[pid 21765] munmap(0x7fedce329000, 4096) = 0
[pid 21765] prctl(PR_SET_NAME, "systemd-userwor"...) = 0
[pid 21765] geteuid()                   = 0
[pid 21765] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fedce329000
[pid 21765] prctl(PR_SET_MM, PR_SET_MM_ARG_START, 0x7fedce329000, 0, 0) = -1 EPERM (Operation not permitted)
[pid 21765] prctl(PR_SET_MM, PR_SET_MM_ARG_END, 0x7fedce32901d, 0, 0) = -1 EPERM (Operation not permitted)
[pid 21765] munmap(0x7fedce329000, 4096) = 0
[pid 21765] accept4(3, NULL, NULL, SOCK_CLOEXEC|SOCK_NONBLOCK) = -1 EAGAIN (Resource temporarily unavailable)
[pid 21765] prctl(PR_SET_NAME, "systemd-userwor"...) = 0
[pid 21765] geteuid()                   = 0
[pid 21765] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fedce329000
[pid 21765] prctl(PR_SET_MM, PR_SET_MM_ARG_START, 0x7fedce329000, 0, 0) = -1 EPERM (Operation not permitted)
[pid 21765] prctl(PR_SET_MM, PR_SET_MM_ARG_END, 0x7fedce329020, 0, 0) = -1 EPERM (Operation not permitted)
[pid 21765] munmap(0x7fedce329000, 4096) = 0

If we get a permission error, don't try again.
2020-05-26 10:28:59 +02:00
Zbigniew Jędrzejewski-Szmek ad4f7f6747 basic/process-util: create helper function
No functional change.
2020-05-26 10:28:59 +02:00
Lennart Poettering 5aec5c751a unit-name: use TAKE_PTR() where appropriate 2020-05-26 09:17:48 +02:00
Lennart Poettering ab19db01ae unit-name: tighten checks for building valid unit names
Let's be more thorough that whenever we build a unit name based on
parameters, that the result is actually a valid user name. If it isn't
fail early.

This should allows us to catch various issues earlier, in particular
when we synthesize mount units from /proc/self/mountinfo: instead of
actually attempting to allocate a mount unit we will fail much earlier
when we build the name to synthesize the unit under. Failing early is a
good thing generally.
2020-05-26 09:17:47 +02:00
Lennart Poettering 8e2fa6e223 json: turn off ubsan for json_variant_has_type()
Fixes: #15907
2020-05-26 09:01:26 +02:00
Lennart Poettering 6028d766d1 macro: introduce DISABLE_WARNING_TYPE_LIMITS and make use of it everywhere 2020-05-25 18:25:09 +02:00
Lennart Poettering 6a5b28def2 json: use our regular way to turn off compiler warnings 2020-05-25 18:23:50 +02:00
Frantisek Sumsal 15dd451535 tree-wide: codespell fixes
Another batch of codespell fixes as reported by Fossies.org
2020-05-25 10:29:28 +02:00
Lennart Poettering 5b3f4a20ea fileio: sync directory after rename, too 2020-05-21 23:28:48 +02:00
Zbigniew Jędrzejewski-Szmek 7c15a55f8b Merge pull request #15870 from poettering/proc-cmdline-efi-fix
udev /proc/cmdline handling fixes
2020-05-21 09:07:27 +02:00
Anita Zhang b10ceb4783 Merge pull request #15557 from poettering/journal-zero-fix
journal: deal better with reading from zeroed out journal mmaps
2020-05-20 18:14:51 -07:00
Lennart Poettering 09835de3cc proc-cmdline: make checking of EFI options variable optional
And do not use it in the IMPORT{cmdline} udev code. Wherever we expose
direct interfaces to check the kernel cmdline, let's not consult our
systemd-specific EFI variable, but strictly use the actual kernel
variable, because that's what we claim we do. i.e. it's fine to use the
EFI variable for our own settings, but for the generic APIs to the
kernel cmdline we should not use it.

Specifically, this applies to IMPORT{cmdline} and
ConditionKernelCommandLine=. In the latter case we weren#t checking the
EFI variable anyway, hence let's do the same for the udev case, too.

Fixes: #15739
2020-05-20 19:22:09 +02:00
Lennart Poettering 05a7827e87 proc-cmdline: add checking of EFI options variable in proc_cmdline_get_key_many() too 2020-05-20 19:18:45 +02:00
Lennart Poettering 4b5ee5901c proc-cmdline: fix return value clobbering in proc_cmdline_get_key()
Let's make sure proc_cmdline_get_key() follows our coding style: never
clobber return values on failure, and always initialize on success.
2020-05-20 19:17:44 +02:00
Zbigniew Jędrzejewski-Szmek 6b8664cb5b tree-wide: fix bad errno checks 2020-05-20 18:10:58 +02:00
Zbigniew Jędrzejewski-Szmek a0fa268337 basic/efivars: fix errno propagation
Fixup for 484f4e5b2d. Should fix #15730.
2020-05-20 18:08:05 +02:00
Lennart Poettering 053e0626db fs-util: teach unlinkat_deallocate() a simple scheme for overwriting for erasing
With that it becomes useful for deleting password files and such.
2020-05-19 17:27:13 +02:00
Lennart Poettering 1d06deba0f Merge pull request #15845 from poettering/btrfs-encrypted-fix
make path_is_encrypted() test pass on btrfs inside container
2020-05-19 17:15:22 +02:00
Lennart Poettering 544e146b0e journalctl,elsewhere: make sure --file=foo fails with sane error msg if foo is not readable
It annoyed me for quite a while that running "journalctl --file=…" on a
file that is not readable failed with a "File not found" error instead
of a permission error. Let's fix that.

We make this work by using the GLOB_NOCHECK flag for glob() which means
that files are not accessible will be returned in the array as they are
instead of being filtered away. This then means that our later attemps
to open the files will fail cleanly with a good error message.
2020-05-19 15:26:51 +02:00
Zbigniew Jędrzejewski-Szmek 7f6b827f36 Merge pull request #15836 from poettering/makefs-lock
lock whole block device file running makefs
2020-05-19 15:23:23 +02:00
Lennart Poettering 3468e5ac51 btrfs-util: tweak error code a bit 2020-05-19 12:12:00 +02:00
Lennart Poettering 3931056767 proc-cmdline: add some explanatory comments 2020-05-18 20:17:57 +02:00
Lennart Poettering ac83e5aeca blockdev: add helper for locking whole block device 2020-05-18 18:41:56 +02:00
Lennart Poettering 6cba41ab0d blockdev: propagate one more unexpected error 2020-05-18 18:41:56 +02:00
Zbigniew Jędrzejewski-Szmek b3d15d90c0 Merge pull request #15804 from poettering/hostnamed-instant-part1
four likely safe commits split out of #15624
2020-05-18 15:26:24 +02:00
Lennart Poettering 7cd9e4f8a0 limit-util: quieten a very common debug message that is misleading 2020-05-15 15:50:09 +02:00
Lennart Poettering 3250501865 Merge pull request #15660 from benjarobin/perf_barrier_fd
Faster manager_process_barrier_fd and drop message if BARRIER=1 found
2020-05-14 09:07:41 +02:00
Lennart Poettering fee5c52ac2 stat-util: add stat_inode_unmodified() helper that checks if an inode was modified 2020-05-13 16:57:44 +02:00
Benjamin Robin 147d8fc1a7 basic: Allow to call STRV_FOREACH_BACKWARDS() with a char * const * strv 2020-05-10 18:57:56 +02:00
Lennart Poettering 0497c4c28a random-util: make use of GRND_INSECURE when it is defined
kernel 5.6 added support for a new flag for getrandom(): GRND_INSECURE.
If we set it we can get some random data out of the kernel random pool,
even if it is not yet initializated. This is great for us to initialize
hash table seeds and such, where it is OK if they are crap initially. We
used RDRAND for these cases so far, but RDRAND is only available on
newer CPUs and some archs. Let's now use GRND_INSECURE for these cases
as well, which means we won't needlessly delay boot anymore even on
archs/CPUs that do not have RDRAND.

Of course we never set this flag when generating crypto keys or uuids.
Which makes it different from RDRAND for us (and is the reason I think
we should keep explicit RDRAND support in): RDRAND we don't trust enough
for crypto keys. But we do trust it enough for UUIDs.
2020-05-10 11:15:16 +02:00
Lennart Poettering e2b5546452 random-util: use ERRNO_IS_NOT_SUPPORTED() macro
Some container mgr or sandbox solution might block it with an unexpected
error code, hence let's be tolerant here.
2020-05-10 11:14:17 +02:00
Lennart Poettering 57ee010ff2 random-util: actually encode our expectations on RAND_MAX 2020-05-10 11:13:49 +02:00
Lennart Poettering 622e1cdb31 fs-util: beef up path_is_encrypted() to deal with LVM block devices
Let's iterate through the slaves/ directory to find backing devices of
the block devices we care about.
2020-05-10 09:23:30 +02:00
Zbigniew Jędrzejewski-Szmek f2a8372e37 Merge pull request #15703 from poettering/homed-tweak-default-storage
homed: avoid double encryption
2020-05-08 16:57:14 +02:00