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The TPM might be password/pin protected for various reasons even if
there is no SRK yet. Let's handle those cases gracefully instead of
failing the unit as it is enabled by default.
Allow systemd units to require/bind to MTD devices. One use case is for
using a systemd service to attach an MTD device to an UBI controller,
which cannot be done until the MTD device has been probed.
Fixes#33096
Multipath TCP (MPTCP), standardized in RFC8684 [1], is a TCP extension
that enables a TCP connection to use different paths. It allows a device
to make use of multiple interfaces at once to send and receive TCP
packets over a single MPTCP connection. MPTCP can aggregate the
bandwidth of multiple interfaces or prefer the one with the lowest
latency, it also allows a fail-over if one path is down, and the traffic
is seamlessly re-injected on other paths.
To benefit from MPTCP, both the client and the server have to support
it. Multipath TCP is a backward-compatible TCP extension that is enabled
by default on recent Linux distributions (Debian, Ubuntu, Redhat, ...).
Multipath TCP is included in the Linux kernel since version 5.6 [2]. To
use it on Linux, an application must explicitly enable it when creating
the socket:
int sd = socket(AF_INET(6), SOCK_STREAM, IPPROTO_MPTCP);
No need to change anything else in the application.
This patch allows MPTCP protocol in the Socket unit configuration. So
now, a <unit>.socket can contain this to use MPTCP instead of TCP:
[Socket]
SocketProtocol=mptcp
MPTCP support has been allowed similarly to what has been already done
to allow SCTP: just one line in core/socket.c, a very simple addition
thanks to the flexible architecture already in place.
On top of that, IPPROTO_MPTCP has also been added in the list of allowed
protocols in two other places, and in the doc. It has also been added to
the missing_network.h file, for systems with an old libc -- note that it
was also required to include <netinet/in.h> in this file to avoid
redefinition errors.
Link: https://www.rfc-editor.org/rfc/rfc8684.html [1]
Link: https://www.mptcp.dev [2]
Set the $REMOTE_ADDR environment variable for AF_UNIX socket connections
when using per-connection socket activation (Accept=yes). $REMOTE_ADDR
will now contain the remote socket's file system path (starting with a
slash "/") or its address in the abstract namespace (starting with an
at symbol "@").
This information is essential for identifying the remote peer in AF_UNIX
socket connections, but it's not easy to obtain in a shell script for
example without pulling in a ton of additional tools. By setting
$REMOTE_ADDR, we make this information readily available to the
activated service.
I do not think this is necessary, but all other places in
libsystemd-network we clear buffer before receive. Without this,
Coverity warns about use-of-uninitialized-values.
Let's silence Coverity.
Closes CID#1469721.
Let's follow the conventions set by "Registry of Reserved TPM 2.0 Handles
and Localities" and only allocate nvindex currently not assigned to any
vendor.
For details see:
https://trustedcomputinggroup.org/resource/registry/
Section 2.2
Since we document /usr/local/lib/systemd/ and other paths for various things,
add notes that this is not supported if /usr/local is a separate partition. In
systemd.unit, I tried to add the footnote in the table where
/usr/local/lib/systemd/ is listed, but that get's rendered as '[sup]a[/sup]'
with a mangled footnote at the bottom of the table :( .
Also, split paragraphs in one place where the subject changes without any
transition.
Follow-up for 02f35b1c90.
Replaces https://github.com/systemd/systemd/pull/33231.
Follow-up for 1d617b35fe.
Should fix https://github.com/systemd/systemd/issues/33269.
From the logs in the bug:
Jun 10 22:55:37 systemd-logind[909]: The system will suspend now!
Jun 10 22:55:37 ModemManager[996]: <msg> [sleep-monitor-systemd] system is about to suspend
...
Jun 10 22:55:48 systemd-sleep[422408]: Failed to freeze unit 'user.slice': Connection timed out
Jun 10 22:55:48 systemd-sleep[422408]: Performing sleep operation 'suspend'...
The delay is ~11 s, consistent with the patch that set the timeout to 10 s.
Looks like this is not enough. It's the freeze operation that fails, but
thawing might be slow too, so just bump the timeout again.
Currently the check also succeeds if the input path starts with a dot, whereas
we only want it to succeed for "." and "./". Tighten the check and add a test.
