An AF_UNIX stream receive can combine a message without file descriptors
with a following SCM_RIGHTS-bearing message. This associates the received
descriptors with the earlier message even when the sender uses separate
sendmsg() calls.
Use the existing boundary-limited read path whenever FD input is enabled
on stream sockets, not only for protocol upgrades. Include the buffered
delimiter suffix in the peek search so a split CRLF delimiter cannot
over-read into the next message either.
Record the input socket type when attaching the descriptors so the new
FD-triggered limit does not truncate packet sockets. Explicit bounded
reads retain their existing semantics.
Add regressions for a oneway request followed by an FD-bearing request,
a continued reply followed by an FD-bearing terminal reply, a split CRLF
delimiter followed by an FD-bearing message, and batched messages on
SOCK_SEQPACKET and SOCK_DGRAM.
Fixes#43823
Encrypted credentials produced by systemd-creds are stored as Base64.
Decode them before decrypting in read_credential_with_decryption(), while
leaving plaintext credentials unchanged and retaining their precedence.
Bound the decoded encrypted input and report oversized credentials
explicitly. Match the plaintext reader's string semantics by rejecting
embedded NUL bytes when no size output is requested, while preserving
binary payloads for callers that request their size.
Add regression coverage for missing and malformed credentials, plaintext
precedence, decoded size boundaries, single-line and wrapped Base64,
empty strings, and binary data. Keep test outputs and host secrets scoped
to private fixtures.
Fixes#43621
When a multi-byte delimiter straddles two reads, json_stream_parse()
only scans the bytes from the latest read. As a result, a QMP reply
whose "\r\n" terminator is split between reads is not recognized.
Include up to delimiter_size - 1 trailing bytes from the existing buffer
in the next scan, so delimiters spanning reads can be matched.
Add regression coverage for a split CRLF delimiter followed by another
message in the same read. Check that both objects are parsed correctly
and that no buffered input remains afterwards.
machinectl clone --read-only ignored the requested read-only mode when
cloning a foreign-UID-owned directory because the unprivileged clone path
did not receive the read_only argument.
Pass the flag through and apply the immutable bit via the already-open
destination directory fd after copying. Keep this best-effort, matching
the ordinary directory clone fallback, so failure to set the attribute
does not turn a completed copy into a reported clone failure.
Add a regression test using foreign-0 rather than a fixed UID. Verify
the cloned image's ReadOnly property, copied contents and ownership, and
that the immutable directory rejects new entries. Run this subtest only
when file attributes and the existing rootless nspawn prerequisites are
available, leaving the other machined tests unchanged.
unprivileged_clone() returns success when mountfsd_make_directory() fails.
Consequently, callers can report a successful clone even though the
destination directory was never created.
Return the original error instead of zero so the failed clone is
reported to the caller.
Add a regression test that places a regular file without an image suffix
at the destination path. Such a file is ignored by image discovery but
prevents directory creation. Check that cloning reports failure without
changing the file, then succeeds after the conflicting file is removed.
The Varlink service enumerates image targets and needs a private mount
namespace while dissecting images. Keep its sandbox in sync with
systemd-sysupdated.service.
Follow-up to 31616d00efFixes#43604
network-generator writes generated command line configuration below
the alternate root passed with --root=, but network.* credentials
were copied to fixed host /run paths.
Build the credential target directories with arg_root before passing
them to pick_up_credentials(). This keeps normal boot behavior
unchanged while making credential output land in the requested root.
A newly created network namespace may disallow ICMP echo sockets for
unprivileged users even when their GIDs are mapped into the container.
When creating both user and network namespaces, initialize
net.ipv4.ping_group_range using the mapped GID range capped at INT32_MAX.
This follows the system-wide default from sysctl.d/50-default.conf while
respecting the user namespace mapping and the kernel's accepted limit.
Leave externally supplied network namespaces untouched and treat write
failures as non-fatal warnings.
Add regression coverage for the default 64K mapped range using the tools
already available in the minimal container image.
Fixes#41603
Totoro