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Distributions apparently only compile a subset of TPM2 drivers into the
kernel. For those not compiled it but provided as kmod we need a
synchronization point: we must wait before the first TPM2 interaction
until the driver is available and accessible.
This adds a tpm2.target unit as such a synchronization point. It's
ordered after /dev/tpmrm0, and is pulled in by a generator whenever we
detect that the kernel reported a TPM2 to exist but we have no device
for it yet.
This should solve the issue, but might create problems: if there are TPM
devices supported by firmware that we don't have Linux drivers for we'll
hang for a bit. Hence let's add a kernel cmdline switch to disable (or
alternatively force) this logic.
Fixes: #30164
When we receive a goodby packet about a host, and we have a cache entry about
the host, we do not immediately remove the cache entry, but update it with TTL 1.
See RFC 6762 section 10.1 and 3755027c2cada70345c96787a9b5569994dd23ed.
If we receive a request soon after the goodby packet, previously the
entry was included in the known answers section of the reply. But such
information should not be appended.
Follow-up for 3755027c2cada70345c96787a9b5569994dd23ed.
Currently, link_queue_request_safe(), which is a wrapper of
request_new(), is called with a free function at
- link_request_stacked_netdev() at netdev/netdev.c,
- link_request_address() at networkd-address.c,
- link_request_nexthop() at networkd-nexthop.c,
- link_request_neighbor() at networkd-networkd.c.
For the netdev case, the reference counter of the passed object is increased
only when the function returns 1. So, on failure (with -ENOMEM)
previously we unexpectedly dropped the reference of the NetDev object.
Similarly, for Address and friends, the ownership of the object is moved to the
Request object only when the function returns 1. And on failure, previously
the object was freed twice.
Also, netdev_queue_request(), which is another wrapper of request_new()
potentially leaks memory when the same NetDev object is queued twice.
Fortunately, that should not happen as the function is called only once
per object.
This fixes the above issue, and now the ownership or the reference
counter of the object is changed only when it is succeeded with 1.
Rewrite the test in bash and make it part of our integration test suite,
so it's actually executed in all our upstream CI environments.
The original test is flaky in environments where daemon-reload might
occur during the test runtime (e.g. when running the test in parallel
with the systemd-networkd test suite). Also, it was run only in CentOS
CI in limited way (i.e. without sanitizers), since it tests the host's
systemd, instead of the just built one.
Resolves: #29943
Turns out Coccinelle can handle compound literals just fine, the parsing
errors were caused by incorrectly parsed macros in code before the
literals, so let's just provide simplified versions for such macros.
The parsing error in `Type *foo[ELEMENTSOF(bar)] = {};` is actually
harmless; it occurs only when creating an array of pointers for a type
that's in an external header and it occurs only on the first parser's
pass, subsequent passes resolve the type correctly.
Also, unset ENABLE_DEBUG_HASHMAP, so Coccinelle doesn't expand the
hashmap debug macros.
As for the remaining FIXMEs, I opened a couple of issues in the
Coccinelle upstream to see if they can be fixed there (or at least
properly analyzed).
Now that the ConditionSecurity=uki-measured check is tighter we can drop
the explicit TPM2 check again.
This reverts commit aa735b02196cf6f947fd1e4b2ec46b544ec7c3e1.
We simply don't carry any userspace support for TPM1.2 in our tree, and
we shouldn't given it's too weak by today's standards. Hence, if we
check if we are booted in UKI measured boot mode, don't just check if we
are booted in EFI, but also check that we have a TPM2 chip (as opposed
to none or only a TPM1.2 chip).
This is an alternative to #30652 but more comprehensive (and simpler),
since it covers all invocations of efi_measured_uki().
Fixes: #30650
Replaces: #30652
This makes the folloing:
- Each Directory object now has a reference to sd-journal.
- Hence, directory_free(), which is renamed from remove_directory(), can
be called without sd-journal as an argument.
- Introduces hash ops for Directory, so the finalization becomes
slightly simpler.
- Allocate hashmaps that store Directory objects when necessary.
- Split out add_directory_impl().
No functional changes, just refactoring.
Since 138224fc807091d31f19a3b22f066d6044626001, HandleActionData
records the corresponding HandleAction. Let's use it instead of
relying on inhibit_what when mapping to string.
