We converted to not using #ifdef for most of our defines because the syntax is
nicer and we are protected against typos and can set -Werror=undef. Let's do
the same for SD_BOOT. The define is nicely hidden in build.h for normal builds,
and for EFI builds we were already setting SD_BOOT on the commandline.
Our HAVE_* variables are defined to 0 or 1, so '#if defined(HAVE_*)' is always true.
The variable is not defined when compiling for EFI though, so we need the
additional guard.
(I don't want to do something like add -DHAVE_EXPLICIT_BZERO=0 to the commandline
in src/efi/boot/meson.build, because this quite verbose. Our compilation commandlines
are very long already. Let's instead keep this localized in this one spot in the
source file.)x
Jan Janssen [Sat, 7 Jan 2023 21:16:52 +0000 (22:16 +0100)]
boot: Simplify object erasure
This erase_obj() machinery looks like voodoo and creates an awful lot of
noise as soon as we get back to building with -O0. We can do this in a
more simple way by introducing a struct that holds the information we
need on cleanup. When building with optimization enabled, all this gets
inlined and the eraser vanishes.
import: use CURLOPT_PROTOCOLS_STR with libcurl >= 7.85.0
CURLOPT_PROTOCOLS [0] was deprecated in libcurl 7.85.0 with
CURLOPT_PROTOCOLS_STR [1] as a replacement, causing build warnings/errors:
../build/src/import/curl-util.c: In function ‘curl_glue_make’:
../build/src/import/curl-util.c:255:9: error: ‘CURLOPT_PROTOCOLS’ is deprecated: since 7.85.0. Use CURLOPT_PROTOCOLS_STR [-Werror=deprecated-declarations]
255 | if (curl_easy_setopt(c, CURLOPT_PROTOCOLS, CURLPROTO_HTTP|CURLPROTO_HTTPS|CURLPROTO_FILE) != CURLE_OK)
| ^~
In file included from ../build/src/import/curl-util.h:4,
from ../build/src/import/curl-util.c:6:
/usr/include/curl/curl.h:1749:3: note: declared here
1749 | CURLOPTDEPRECATED(CURLOPT_PROTOCOLS, CURLOPTTYPE_LONG, 181,
| ^~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
Since there's no grace period between the two symbols, let's resort
to a light if-def-ery to resolve this.
import: use CURLINFO_SCHEME instead of CURLINFO_PROTOCOL
CURLINFO_PROTOCOL has been deprecated in curl 7.85.0 causing compilation
warnings/errors:
../build/src/import/pull-job.c: In function ‘pull_job_curl_on_finished’:
../build/src/import/pull-job.c:142:9: error: ‘CURLINFO_PROTOCOL’ is deprecated: since 7.85.0. Use CURLINFO_SCHEME [-Werror=deprecated-declarations]
142 | code = curl_easy_getinfo(curl, CURLINFO_PROTOCOL, &protocol);
| ^~~~
In file included from ../build/src/import/curl-util.h:4,
from ../build/src/import/pull-job.h:6,
from ../build/src/import/pull-common.h:7,
from ../build/src/import/pull-job.c:16:
/usr/include/curl/curl.h:2896:3: note: declared here
2896 | CURLINFO_PROTOCOL CURL_DEPRECATED(7.85.0, "Use CURLINFO_SCHEME")
| ^~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
Since both CURLINFO_SCHEME and CURLINFO_PROTOCOL were introduced in
the same curl version (7.52.0 [0][1]) we don't have to worry about
backwards compatibility.
Yu Watanabe [Mon, 9 Jan 2023 05:00:09 +0000 (14:00 +0900)]
sd-device: make device_set_syspath() clear sysname and sysnum
Otherwise, when a new syspath is assigned to the sd-device object,
sd_device_get_sysname() or _sysnum() will provide an outdated device
name or number.
oss-fuzz: include generated corpora in the final zip file
Since the files with generated directives are now automatically
generated during build, they're now under the respective build directory
which the current oss-fuzz CI script didn't account for.
load-fragment: config_parse_emergency_action() doesn't ever get a Manager pointer passed in
In 'data' we get the location passed in we write stuff, and that's not
the Manager object.
And we neither get the Manager passed in via 'userdata', because at the
time we parse the emergency action for the manager the Manager is not
actually allocated yet.
hence, let's fix this differently, and pass in the user/system mode
descriptor via the 'ltype' argument.
Sam James [Fri, 6 Jan 2023 10:58:32 +0000 (10:58 +0000)]
tmpfiles: avoid null free() for acl attributes
When built with ACL support, we might be processing a tmpfiles
entry where there's no cause for us to call parse_acls_from_arg,
then we get to the end of parse_line without having ever populated
i.{acl_access, acl_default}.
Then we pass a null pointer into acl_free().
From UBSAN w/ GCC 13.0.0_pre20230101:
```
$ systemd-tmpfiles --clean
/var/tmp/portage/sys-apps/acl-2.3.1-r1/work/acl-2.3.1/libacl/acl_free.c:44:14: runtime error: applying non-zero offset 18446744073709551608 to null pointer
#0 0x7f65d868b482 in acl_free /var/tmp/portage/sys-apps/acl-2.3.1-r1/work/acl-2.3.1/libacl/acl_free.c:44
#1 0x55fe7e592249 in item_free_contents ../systemd-9999/src/tmpfiles/tmpfiles.c:2855
#2 0x55fe7e5a347a in parse_line ../systemd-9999/src/tmpfiles/tmpfiles.c:3158
#3 0x55fe7e5a347a in read_config_file ../systemd-9999/src/tmpfiles/tmpfiles.c:3897
#4 0x55fe7e590c61 in read_config_files ../systemd-9999/src/tmpfiles/tmpfiles.c:3985
#5 0x55fe7e590c61 in run ../systemd-9999/src/tmpfiles/tmpfiles.c:4157
#6 0x55fe7e590c61 in main ../systemd-9999/src/tmpfiles/tmpfiles.c:4218
#7 0x7f65d7ebe289 (/usr/lib64/libc.so.6+0x23289)
#8 0x7f65d7ebe344 in __libc_start_main (/usr/lib64/libc.so.6+0x23344)
#9 0x55fe7e591900 in _start (/usr/bin/systemd-tmpfiles+0x11900)
```
sd-event: don't mistake USEC_INFINITY passed in for overflow
Let's pass USEC_INFINITY from sd_event_source_set_time_relative() to
sd_event_source_set_time() instead of raising EOVERFLOW.
We should raise EOVERFLOW only if your addition fails, but not if the
input already is USEC_INFINITY, since it's an entirely valid operation
to have an infinite time-out, and we should support that.
Commit 1b86c7c59ecc ("virt: make virtualization enum a named type")
made the conversion from `if (!r)` to `if (v != VIRTUALIZATION_NONE)`.
However, the initial test was meaning "if r is null", IOW "if r IS
`VIRTUALIZATION_NONE`).
The test is wrong and this can lead to false detection of the container
environment (when calling `systemctl exit`).
For example, https://gitlab.freedesktop.org/whot/libevdev/-/jobs/34207974
is calling `systemctl exit 0`, and systemd terminates with the exit code
`130`.
Fixing that typo makes `systemctl exit 0` returns `0`.
units: condition systemd-networkd-wait-online.service like systemd-networkd.service
This adds the same condition that systemd-networkd.service already
carries also to systemd-networkd-wait-online.service. Otherwise we'll
potentially see some logs we'd rather not see about a service we BindTo=
not running. Or in other words, if service X binds to Y then X should be
at least as conditioned as Y.
resolved: read DNS conf also from creds and kernel cmdline
Note that this drops ProtectProc=invisible from
systemd-resolved.service.
This is done because othewise access to the booted "kernel" command line is not
necessarily available. That's because in containers we want to read
/proc/1/cmdline for that.
Mike Yuan [Thu, 29 Dec 2022 06:51:06 +0000 (14:51 +0800)]
systemctl: enable: overwrite broken alias symlinks
When switching to an alternative alias provider,
the previous one might have been uninstalled or so.
It should be fine for us to overwrite them directly.
Luca Boccassi [Wed, 28 Dec 2022 16:27:37 +0000 (17:27 +0100)]
man: note that DynamicUser=yes is incompatible with D-Bus
Due to policy checks against system users this cannot currently work, and it is non-obvious.
In the future it might be implemented if support is added to dbus-broker/dbus-daemon, e.g.:
resolvectl: don't filter loopback DNS server from global DNS server list
"resolvectl status" shows per-link DNS servers separately from global
ones. When querying the global list, it will contain both per-link and
global servers however. Thus, to not show duplicate info we filter all
entries that actually have a non-zero ifindex set (under the assumption
that that's a per-link server).
This doesn't work if people configured 127.0.0.1 as global server
though, as we'll add ifindex 1 to it since 6e32414a66ff8dbcef233981a7066684d903ee9f unconditionally even for global
servers.
Let's address that by excluding entries with ifindex 1 from suppression.
This is safe as resolved ignores loopback ifaces, hence never will have
per-link servers on ifindex 1.
Note that this splits up the "with_ifindex" parameter into a second
parameter "only_global", since they semantically do two different
things. One controls whether we shall expect/parse an ifindex dbus
field. The other controls whether we shall filter all ifindex values set
!= 0. These are effectively always used in conjunction hence making them
the same actually worked. However this is utterly confusing I think,
which as I guess is resulting in the confusion around #25796 (which
removes the whole check)
This renames systemd-boot-system-token.service to
systemd-boot-random-seed.service and conditions it less strictly.
Previously, the job of the service was to write a "system token" EFI
variable if it was missing. It called "bootctl --graceful random-seed"
for that. With this change we condition it more liberally: instead of
calling it only when the "system token" EFI variable isn't set, we call
it whenever a boot loader interface compatible boot loader is used. This
means, previously it was invoked on the first boot only: now it is
invoked at every boot.
This doesn#t change the command that is invoked. That's because
previously already the "bootctl --graceful random-seed" did two things:
set the system token if not set yet *and* refresh the random seed in the
ESP. Previousy we put the focus on the former, now we shift the focus to
the latter.
With this simple change we can replace the logic f913c784ad4c93894fd6cb2590738113dff5a694 added, but from a service that
can run much later and doesn't keep the ESP pinned.
random-seed: don't refresh EFI random seed from random-seed.c anymore
The ESP is simply not mounted early enough for this. We want that the
regular random seed handling runs as early as we possibly could, but we
don't want to delay this until the ESP is actually mounted.
Hence, let's remove this from random-seed.c here. A follow-up commit
will then add this back in, in a separate service which just calls
"bootctl random-seed".
bootctl: rework random seed logic to use open_mkdir_at() and openat()
This doesn't really fix anything, but in general we should put stronger
emphasis on operating via dir fds rather than paths more (in particular
when writing files as opposed to consuming them).
resolved: downgrade inability to send varlink reply error message
Previously, if a client disconnected after sending a lookup request but
before waiting for the reply we'd log at LOG_ERR level. That's
confusing, since it's entirely OK for the client to lose interest.
msizanoen1 [Tue, 27 Dec 2022 04:57:12 +0000 (11:57 +0700)]
udev: match device tags in rules using current device tags
This ensures that udev scripts using `TAG-="..."` and expecting later
udev rules to honor it will work properly. An use case is removing the
`uaccess` tag from a device without overriding the original file and
ensuring that `73-seat-uaccess.rules` won't run the uaccess builtin later.
It seems that using this protocol on some firmwares to forcibly
initialize console devices may break handles (already opened file
handles and the device handle itself) that we rely on to access the
boot filesystem, making it impossible to load the selected entry.
It might be possible to get a new handle by querying for the device
handle by using its device path after calling into this protocol, but
this is untested. The firmware might also be so buggy that accessing
devices after using this protocol is impossible.
It seems prudent to revert this for now until some reliable way is found
to initialize console devices without introducing huge boot delays. Any
users on firmware where console devices cannot be accessed would have to
rely on disabling fastboot.
../src/basic/cgroup-util.c: In function ‘skip_session’:
../src/basic/cgroup-util.c:1241:32: error: incompatible types when returning type ‘_Bool’ but ‘const char *’ was expected
1241 | return false;