Yu Watanabe [Fri, 5 Jan 2024 18:27:07 +0000 (03:27 +0900)]
udevadm: allow to override the default log level by environment variable
Previously, there was no way to override the log level for test and
test-builtin commands. Let's re-parse environment after setting the log
level to debug. Then, we can control the log level through environment
variable.
dev-setup: rework make_inaccessible_nodes() around openat() and friends
Let's operate on fds rather than paths. Make some tweaks to the logic on
top:
1. Mark the resulting dir as read-only after we are done.
2. Use the new inode_type_to_string() calls to determine the inode
names.
3. If an inode already exists, try to adjust the access mode, just in
case.
4. Use FOREACH_ARRAY()
This patch adds a new parameter to parse_ip_port_range, giving callers
the option to allow ranges to have their min be 0 instead of 1.
This is then used by parse_ip_ports_token, intern used by
parse_socket_bind_item to allow port 0 when restricting bind system
calls with SocketBindDeny / SocketBindAllow.
With this, users running server software written using the golang
standard library will be able to effectively sandbox their software,
albeit with a small loss in security protections by allowing the
process to bind on a random port in the
/proc/sys/net/ipv4/ip_local_port_range.
tree-wide: use JSON_ALLOW_EXTENSIONS when disptching at various places
If we want to allow method replies to be extended without this breaking
compat, then we should set this flag. Do so at various method call
replies hence.
Also do it when parsing user/group records, which are expressly
documented to be extensible, as well as the hibernate JSON record.
This is a subset of JSON_PERMISSIVE focussed on allowing parsing of
varlink replies that get extended, i.e. gain new fields, without
allowing more than that (i.e. without allowing missing fields, or bad
field types or such).
iovec-util: rework IOVEC_MAKE_STRING() to work with compound initialized input
This avoids the ({}) that IOVEC_MAKE_STRING() so far used and might
cause a memory corruption if the parameter passed in is itself allocated
via a compount initialized array or so.
Also, this makes sure both IOVEC_MAKE_STRING() and IOVEC_MAKE() accept
'const' parameters without this causing a compiler warning.
Adrian Vovk [Thu, 28 Dec 2023 23:12:06 +0000 (18:12 -0500)]
core: Add %D specifier for $XDG_DATA_HOME
We already have specifiers that resolve to $XDG_STATE_HOME, and
$XDG_CONFIG_HOME. $XDG_DATA_HOME is in a similar vein.
It allows units belonging to the user service manager to correctly look
into ~/.local/share. I imagine this would be most useful inside of
condition checks (i.e. only run a service on session startup if some
data is not found in ~/.local/share) or in the inotify monitoring of a
.path unit
cryptenroll: change class in provided PKCS#11 URI if necessary
cryptenroll accepts only PKCS#11 URIs that match both a certificate and a private key in a token.
This patch allows users to provide a PKCS#11 URI that points to a certificate only, and makes possible to use output of some PKCS#11 tools directly.
Internally the patch changes 'type=cert' in the provided PKCS#11 URI to 'type=private' before storing in a LUKS2 header.
If Network.ignore_carrier_loss_set flag is set, then the timeout value
is always used, hence the logic implemented by b732606950f8726c0280080c7d055a714c2888f5 never worked.
creds: rename "tpm2-absent" encryption to "null" encryption
This is what it is after all: encryption with a NULL key. This is more
descriptive, but also relevant since we want to use this kind of
credentials in a different context soon: for carrying pcrlock data into
a UKI. In that case we don#t want encryption, since the pcrlock data is
intended to help unlocking secrets, hence should not be a secret itself.
This only changes the code labels and the way this is labelled in the
output. We retain compat with the old name.
Otherwise we'd use some garbage value in the error path.
../src/resolve/resolved-dns-query.c: In function ‘dns_query_accept’:
../src/resolve/resolved-dns-query.c:944:27: error: ‘r’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
944 | q->answer_errno = -r;
| ^~
cc1: all warnings being treated as errors
If a binary built with ASan crashes for a reason unrelated to ASan
stuff, we're left with pretty much nothing, as there is neither an ASan
trace nor a coredump. Let's make this slightly more debug-able by
allowing such binaries to dump a core, but without the huge shadow map
(we should be actually fine by just setting disable_coredump=0, since
use_madv_dontdump defaults to true, but let's play it safe and not
potentially dump a 16+ TB core file).
Assign noDA attribute to TPM2 objects not dependant on a PIN
All the keys are high-entropy keys that cannot be practically
bruteforced and thus don't require protection from dictionary attacks.
With the exception of PINs, of course, which are low-entropy and user
provided.
Note that a new enrollment is required for unlocking while in DA
lockdown to function. Existing enrollments are subject to DA lockout.
logind: rework the special casing we give root's sessions
Let's add an explicit session class "user-early" for this, so that
change of behaviour on logind is primarily bound to the "class"
property, and not some explicit root checks. This has the benefit that
we can be more fine grained with implying this class: only do so for tty
sessions, not others.
logind: do TTY idle logic only for sessions marked as "tty"
Otherwise things might be weird, because background sessions might
become "idle", wich doesn#t really make much sense.
This shouldn't change much in 99% of the cases, but slightly corrects
behaviour as it ensures only "primary"/"foreground" sessions get the
idle logic, i.e. where a user exists that could actually make it
non-idle.