In many of our internal functions that take a pointer + a size we have
introduced the rule that SIZE_MAX as size means: take strlen().
sd_journal_add_match() has something similar, but the special value is
0, not SIZE_MAX. This is a bit ugly, since a zero size data block is
theoretically fine. The only reason sd_journal_add_match() gets away
with using this special value is because valid matches must consist of
at least 2 chars, hence cannot be zero.
But let's make this more robust and less surprising when compared to the
rest of our code, and *also* accept SIZE_MAX to mean strlen().
No actual code changes, just some clean-up.
If we try to deserialize only a pidfd that points to a process that
has been reaped, creating the pidref object will fail, which means that
we'll try to create a pidref object from the serialized pid that comes
next. If the pid has already been reused, this will succeed and we'll
now have a pidref that points to a different process.
Let's avoid this issue by serializing both the pidfd and the pid and
creating the pidref object directly from both. This means we'll reuse
the deserialized pidfd instead of opening a new one. We'll then immediately
notice the pidfd is dead and do the appropriate follow up depending on
the unit type.
The linux/ headers include linux/libc-compat.h that makes sure the
linux/ headers won't redeclare symbols already declared by net/if.h, but
glibc's net/if.h doesn't do that, so if the include order is reversed
we'll end up with a bunch of errors about redeclared stuff:
[3/519] Compiling C object test-network-tables.p/src_network_test-network-tables.c.o
FAILED: test-network-tables.p/src_network_test-network-tables.c.o
cc -Itest-network-tables.p -I. -I.. -Isrc/basic -I../src/basic -Isrc/fundamental -I../src/fundamental -Isrc/systemd -I../src/systemd -I../src/libsystemd/sd-bus -I../src/libsystemd/sd-device -I../src/libsystemd/sd-event -I../src/libsystemd/sd-hwdb -I../src/libsystemd/sd-id128 -I../src/libsystemd/sd-journal -I../src/libsystemd/sd-netlink -I../src/libsystemd/sd-network -I../src/libsystemd/sd-resolve -Isrc/shared -I../src/shared -Isrc/libsystemd-network -I../src/libsystemd-network -Isrc/network -I../src/network -I../src/network/netdev -I../src/network/tc -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wextra -std=gnu11 -O0 -g -Wno-missing-field-initializers -Wno-unused-parameter -Wno-nonnull-compare -Warray-bounds -Warray-bounds=2 -Wdate-time -Wendif-labels -Werror=format=2 -Werror=format-signedness -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-pointer-types -Werror=int-conversion -Werror=missing-declarations -Werror=missing-prototypes -Werror=overflow -Werror=override-init -Werror=return-type -Werror=shift-count-overflow -Werror=shift-overflow=2 -Werror=strict-flex-arrays -Werror=undef -Wfloat-equal -Wimplicit-fallthrough=5 -Winit-self -Wlogical-op -Wmissing-include-dirs -Wmissing-noreturn -Wnested-externs -Wold-style-definition -Wpointer-arith -Wredundant-decls -Wshadow -Wstrict-aliasing=2 -Wstrict-prototypes -Wsuggest-attribute=noreturn -Wunused-function -Wwrite-strings -Wzero-length-bounds -fdiagnostics-show-option -fno-common -fstack-protector -fstack-protector-strong -fstrict-flex-arrays --param=ssp-buffer-size=4 -Wno-unused-result -Werror=shadow -fno-strict-aliasing -fstrict-flex-arrays=1 -fvisibility=hidden -fno-omit-frame-pointer -include config.h -pthread -DTEST_CODE=1 -MD -MQ test-network-tables.p/src_network_test-network-tables.c.o -MF test-network-tables.p/src_network_test-network-tables.c.o.d -o test-network-tables.p/src_network_test-network-tables.c.o -c ../src/network/test-network-tables.c
In file included from ../src/basic/linux/if_bonding.h:47,
from ../src/network/netdev/bond.h:5,
from ../src/network/test-network-tables.c:3:
../src/basic/linux/if.h:111:41: error: redeclaration of enumerator ‘IFF_UP’
111 | #define IFF_UP IFF_UP
| ^~~~~~
../src/basic/linux/if.h:84:9: note: previous definition of ‘IFF_UP’ with type ‘enum net_device_flags’
84 | IFF_UP = 1<<0, /* sysfs */
| ^~~~~~
../src/basic/linux/if.h:112:41: error: redeclaration of enumerator ‘IFF_BROADCAST’
112 | #define IFF_BROADCAST IFF_BROADCAST
| ^~~~~~~~~~~~~
...
This also drops remaining workarounds from the last time this issue was
brought up (6f270e6bd8) since they shouldn't be needed anymore if the
order of the includes is the "correct" one. I also added a comment to
each affected include when this is inevitably encountered again in the
future.
Resolves: #32160
Just like we already have $SYSTEMD_PACKAGES for systemd packages to
re-install in the main image, let's add $INITRD_PACKAGES for all
systemd packages to re-install in the initrd.
distribution-release is a virtual package that is by default satisfied
by the openSUSE MicroOS-release package. Let's make sure we pull in the
generic openSUSE-release package instead by installing
patterns-base-minimal_base which has a Suggests dependency on
openSUSE-release which makes sure it takes priority over the MicroOS one.
We might want to run the build scripts outside of mkosi as well at
some point, e.g. to build an rpm after booting the image, so let's
make them more generic by using /usr/lib/os-release to figure out
which pkg specs we should use instead of $PKG_SUBDIR. To make ubuntu
use the debian pkg spec, we add a symlink pkg/ubuntu which points to
debian/ in the same directory.
All bets are off in build chroots, so let's handle more cases of
files or executables that might not be available in build chroots.
Specifically, these are all fixes to allow the unit tests to run
in the opensuse build chroot.
dns_transaction_request_dnssec_rr was already adjusted in 4001710365,
to allow for the return parameter to be passed uninitialized. However
this codepath was missed, meaning this function could sometimes return
success without having actually set the parameter.
Fixes: 4001710365 ("resolved: minor dnssec fixups")
Fixes: 47690634f1 ("resolved: don't request the SOA for every dns label")
Previously, even If an interface has not acquired a DHCPv6 lease,
networkd logs a misleading message:
===
Apr 09 10:44:57 systemd-networkd[3970750]: veth99: DHCPv6 lease lost
===
The function should do nothing when no lease acquired. Let's return
earlier and suppress the log message.
