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[59/655] Compiling C object src/shared/libsystemd-shared-248.a.p/varlink.c.o
../src/shared/varlink.c: In function ‘varlink_write’:
../src/shared/varlink.c:459:12: warning: ‘n’ may be used uninitialized in this function [-Wmaybe-uninitialized]
459 | if (n < 0) {
| ^
../src/shared/varlink.c: In function ‘varlink_process’:
../src/shared/varlink.c:541:12: warning: ‘n’ may be used uninitialized in this function [-Wmaybe-uninitialized]
541 | if (n < 0) {
| ^
../src/shared/varlink.c:486:17: note: ‘n’ was declared here
486 | ssize_t n;
| ^
It was one giant all of text in pseudo-random order. Let's split it into
paragraphs talk about one subject each.
And unfortunately, the description of what happens when the error is not
set was not correct. In general, various functions treat 0/NULL as
not-an-error, and return 0.
I was hoping it would help with the following gcc warning:
[35/657] Compiling C object src/shared/libsystemd-shared-248.a.p/bus-message-util.c.o
../src/shared/bus-message-util.c: In function ‘bus_message_read_dns_servers’:
../src/shared/bus-message-util.c:165:21: warning: ‘family’ may be used uninitialized in this function [-Wmaybe-uninitialized]
165 | r = in_addr_full_new(family, &a, port, 0, server_name, dns + n);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../src/shared/bus-message-util.c:165:21: warning: ‘port’ may be used uninitialized in this function [-Wmaybe-uninitialized]
../src/shared/bus-message-util.c:165:21: warning: ‘server_name’ may be used uninitialized in this function [-Wmaybe-uninitialized]
It actually doesn't, but the compiler has a point here: the code is specified
in sd_bus_error_map[], and it has no way of knowning that we want it to be a
positive value.
I think this should be an assert, because if this assumption fails, a
programming error has occured, something that'd want to catch.
[11/657] Compiling C object src/basic/libbasic.a.p/fileio.c.o
../src/basic/fileio.c: In function ‘write_string_stream_ts’:
../src/basic/fileio.c:167:21: warning: ‘fd’ may be used uninitialized in this function [-Wmaybe-uninitialized]
167 | if (futimens(fd, twice) < 0)
| ^~~~~~~~~~~~~~~~~~~
[59/1551] Compiling C object src/basic/libbasic.a.p/socket-util.c.o
../src/basic/socket-util.c: In function ‘socket_get_mtu’:
../src/basic/socket-util.c:1393:16: warning: ‘mtu’ may be used uninitialized in this function [-Wmaybe-uninitialized]
1393 | *ret = (size_t) mtu;
| ^~~~~~~~~~~~
Add an --extension parameter to portablectl, and new DBUS methods
to attach/detach/reattach/inspect.
Allows to append separate images on top of the root directory (os-release
will be searched in there) and mount the images using an overlay-like
setup (unit files will be searched in there) using the new ExtensionImages
service option.
Check the return code from gcrypt's functions. In some
cases just log, as it shoulnd't really happen.
Fixes various Coverity issues:
CID #1444702
CID #1444704
CID #1444706
CID #1444711
CID #1444712
CID #1444713
$ sudo dnf remove --installroot=/var/tmp/img1 systemd-networkd
...
Running scriptlet: systemd-networkd-248~rc4-4.fc32.x86_64 1/1
Removed /etc/systemd/system/multi-user.target.wants/systemd-networkd.service.
Removed /etc/systemd/system/sockets.target.wants/systemd-networkd.socket.
Removed /etc/systemd/system/dbus-org.freedesktop.network1.service.
Removed /etc/systemd/system/network-online.target.wants/systemd-networkd-wait-online.service.
System has not been booted with systemd as init system (PID 1). Can't operate.
Failed to connect to bus: Host is down
(Another option would be make --now do nothing if systemd is not running.
But I think that's not too good. 'disable --now' doing nothing would be OK,
since if systemd is not running, the service is not running either, so we are
in the desired state. But that argument doesn't work for 'enable --now'. And
accepting 'disable --now' but not 'enable --now' seems overly complex. So I
think it is better to make the scriptlet handle this case explicitly.)
Also, let's reindent the file to 4 spaces. Very deeply nested scriptlets are
harder to read, and the triggers file is indented to 4 spaces already.
This specifes two new optional fields for /etc/os-release:
IMAGE_VERSION= and IMAGE_ID= that are supposed to identify the image of
the current booted system by name and version.
This is inspired by the versioning stuff in
https://github.com/systemd/mkosi/pull/683.
In environments where pre-built images are installed and updated as a
whole the existing os-release version/distro identifier are not
sufficient to describe the system's version, as they describe only the
distro an image is built from, but not the image itself, even if that
image is deployed many times on many systems, and even if that image
contains more resources than just the RPMs/DEBs.
In particular, "mkosi" is a tool for building disk images based on
distro RPMs with additional resources dropped in. The combination of all
of these together with their versions should also carry an identifier
and version, and that's what IMAGE_VERSION= and IMAGE_ID= is supposed to
be.
If we define a partition with CopyFiles=/efi/ this should just work.
However it previously didn't because basename() would return the
trailing slash.
Let's fix this by moving things to path_extract_{directory|filename}()
The advantage of stream compression is keeping a low memory profile,
but the lz4 stream compressor usage mmaps the whole file in memory.
Change it to read bits by bits, like the other stream compression
helpers.
This code is trying to do two things: when reading a file with working
st.st_size, detect when the file size changes between the fstat() and our
allocation of the buffer based on the returned size, and the subsequent read().
When reading a file without st.st_size, read up to READ_FULL_BYTES_MAX.
But this second scenario was partially broken: we'd start with size = 4095, and
double the size up to three times, i.e. up to 32767. But we want to read up to
READ_FULL_BYTES_MAX.
So let's listentangle the two cases a bit: if a file returns non-zero st._size,
proceed as before. But if we don't know the size, let's immediately allocate
the buffer of maximum size of READ_FULL_BYTES_MAX. I think that allocating 4MB
and 1MB is going to take pretty much the same time as long as the memory is not
written to, so by allocating 1MB, 2MB, and 4MB, we wouldn't really be saving
anything internally, but wasting time on repeated reads, if the file is long
enough.
Also, don't do the seek if we know we're going to return an error immediately
after.
This should fix reading of any files in /proc, which all have size == 0. In
particular, various files read by coredump might be larger than 32767.
What about /sys? The file there return a fake value, usually 4096. So we'll
allocate a small buffer and read that.
Improve the logging to only print if systemd-oomd killed something. And
also print which cgroup was targeted.
Demote general swap above/pressure above messages to debug.
[zjs: fix some issuelets found in review]
https://bugzilla.redhat.com/show_bug.cgi?id=1944171
This was in F33, systemd-246.13, but the logic in the code didn't change.
Thread 1 (Thread 0x7fb5f0341b80 (LWP 1974)):
№0 selabel_lookup_common (rec=0x0, translating=0, key=0x55f616ac4750 "/run/user/1000/systemd/units/invocation:systemd-tmpfiles-clean.service", type=40960) at label.c:167
'rec' is the handle that we passed.
№1 0x00007fb5f13ae87f in selabel_lookup_raw (rec=<optimized out>, con=con@entry=0x7fffef307380, key=key@entry=0x55f616ac4750 "/run/user/1000/systemd/units/invocation:systemd-tmpfiles-clean.service", type=type@entry=40960) at label.c:256
lr = <optimized out>
'rec' is passed through as is to selabel_lookup_common().
№2 0x00007fb5f1561b2d in selinux_create_file_prepare_abspath (abspath=0x55f616ac4750 "/run/user/1000/systemd/units/invocation:systemd-tmpfiles-clean.service", mode=40960) at ../src/basic/selinux-util.c:368
filecon = 0x0
r = <optimized out>
__PRETTY_FUNCTION__ = "selinux_create_file_prepare_abspath"
__func__ = "selinux_create_file_prepare_abspath"
№3 0x00007fb5f1561ec3 in mac_selinux_create_file_prepare (path=<optimized out>, mode=40960) at ../src/basic/selinux-util.c:431
r = 0
abspath = 0x55f616ac4750 "/run/user/1000/systemd/units/invocation:systemd-tmpfiles-clean.service"
__PRETTY_FUNCTION__ = "mac_selinux_create_file_prepare"
We checked label_hnd != NULL, but then we apparently called
avc_netlink_check_nb(), which reset label_hnd. Yay for global state!
№4 0x00007fb5f1549950 in symlink_atomic_label (from=0x55f6169d8b50 "69a8dcf7a7ac46b29306f2fddbed3edc", to=0x55f616ab8380 "/run/user/1000/systemd/units/invocation:systemd-tmpfiles-clean.service") at ../src/basic/label.c:55
r = <optimized out>
__PRETTY_FUNCTION__ = "symlink_atomic_label"
In the logs:
Mar 29 14:48:44 fedorapad.home systemd[1974]: selinux: avc: received policyload notice (seqno=2)
Mar 29 14:48:44 fedorapad.home systemd[1974]: Failed to initialize SELinux labeling handle: No such file or directory
Mar 29 14:48:44 fedorapad.home systemd[1974]: selinux: avc: received policyload notice (seqno=3)
Mar 29 14:48:44 fedorapad.home systemd[1974]: selinux: avc: received setenforce notice (enforcing=0)
With 8f20232fcb systemd-localed supports
generating locales when required. This fails if the locale directory is
read-only, so make it writable.
Closes#19138
LLD 13 and GNU ld 2.37 support -z start-stop-gc which allows garbage
collection of C identifier name sections despite the __start_/__stop_
references. Simply set the retain attribute so that GCC 11 (if
configure-time binutils is 2.36 or newer)/Clang 13 will set the
SHF_GNU_RETAIN section attribute to prevent garbage collection.
Without the patch, there are linker errors like the following with -z
start-stop-gc.
```
ld: error: undefined symbol: __start_SYSTEMD_BUS_ERROR_MAP
>>> referenced by bus-error.c:93 (../src/libsystemd/sd-bus/bus-error.c:93)
>>> sd-bus_bus-error.c.o:(bus_error_name_to_errno) in archive src/libsystemd/libsystemd_static.a
```
