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Since the separate binaries contain mostly the same code,
this almost halves the size of the installation.
before:
398K /bin/udevadm
391K /lib/systemd/systemd-udevd
after:
431K /bin/udevadm
0 /lib/systemd/systemd-udevd -> ../../bin/udevadm
Fixes: #14200
We would parse numbers with base prefixes as user identifiers. For example,
"0x2b3bfa0" would be interpreted as UID==45334432 and "01750" would be
interpreted as UID==1000. This parsing was used also in cases where either a
user/group name or number may be specified. This means that names like
0x2b3bfa0 would be ambiguous: they are a valid user name according to our
documented relaxed rules, but they would also be parsed as numeric uids.
This behaviour is definitely not expected by users, since tools generally only
accept decimal numbers (e.g. id, getent passwd), while other tools only accept
user names and thus will interpret such strings as user names without even
attempting to convert them to numbers (su, ssh). So let's follow suit and only
accept numbers in decimal notation. Effectively this means that we will reject
such strings as a username/uid/groupname/gid where strict mode is used, and try
to look up a user/group with such a name in relaxed mode.
Since the function changed is fairly low-level and fairly widely used, this
affects multiple tools: loginctl show-user/enable-linger/disable-linger foo',
the third argument in sysusers.d, fourth and fifth arguments in tmpfiles.d,
etc.
Fixes#15985.
The time-based cache allows starting a new unit without an expensive
daemon-reload, unless there was already a reference to it because of
a dependency or ordering from another unit.
If the cache is out of date, check again if we can load the
fragment.
This is an attempt to clean-up the DHCP lease server type code a bit. We
now strictly use the same enum everywhere, and store server info in an
array. Moreover, we use the same nomenclature everywhere.
This only makes the changes in the sd-dhcp code. The networkd code is
untouched so far (but should be fixed up like this too. But it's more
complicated since this would then touch actual settings in .network
files).
Note that this also changes some field names in serialized lease files.
But given that these field names have not been part of a released
version of systemd yet, such a change should be ok.
This is pure renaming/refactoring, shouldn't actually change any
behaviour.
```
=220358== Invalid read of size 8
==220358== at 0x452F05: l2tp_session_free (l2tp-tunnel.c:46)
==220358== by 0x456926: l2tp_tunnel_done (l2tp-tunnel.c:725)
==220358== by 0x43CF4D: netdev_free (netdev.c:205)
==220358== by 0x43D045: netdev_unref (netdev.c:210)
==220358== by 0x4198B7: manager_free (networkd-manager.c:1877)
==220358== by 0x40D0B3: manager_freep (networkd-manager.h:105)
==220358== by 0x40DE1C: run (networkd.c:21)
==220358== by 0x40DE75: main (networkd.c:130)
==220358== Address 0x5c035d0 is 0 bytes inside a block of size 40 free'd
==220358== at 0x483A9F5: free (vg_replace_malloc.c:538)
==220358== by 0x452F87: l2tp_session_free (l2tp-tunnel.c:57)
==220358== by 0x456857: netdev_l2tp_tunnel_verify (l2tp-tunnel.c:710)
==220358== by 0x440947: netdev_load_one (netdev.c:738)
==220358== by 0x441222: netdev_load (netdev.c:851)
==220358== by 0x419C50: manager_load_config (networkd-manager.c:1934)
==220358== by 0x40D7BE: run (networkd.c:87)
==220358== by 0x40DE75: main (networkd.c:130)
==220358== Block was alloc'd at
==220358== at 0x4839809: malloc (vg_replace_malloc.c:307)
==220358== by 0x452A76: malloc_multiply (alloc-util.h:96)
==220358== by 0x4531E6: l2tp_session_new_static (l2tp-tunnel.c:82)
==220358== by 0x455C01: config_parse_l2tp_session_id (l2tp-tunnel.c:535)
==220358== by 0x48E6D72: next_assignment (conf-parser.c:133)
==220358== by 0x48E77A3: parse_line (conf-parser.c:271)
==220358== by 0x48E7E4F: config_parse (conf-parser.c:396)
==220358== by 0x48E80E5: config_parse_many_files (conf-parser.c:453)
==220358== by 0x48E8490: config_parse_many (conf-parser.c:512)
==220358== by 0x44089C: netdev_load_one (netdev.c:729)
==220358== by 0x441222: netdev_load (netdev.c:851)
==220358== by 0x419C50: manager_load_config (networkd-manager.c:1934)
```
"internal" is a lot of characters. Let's take a leaf out of the Python's book
and simply use _ to mean private. Much less verbose, but the meaning is just as
clear, or even more.
Afaict, this code never worked, since even when this code was added in
2ea8c08306c7e33f8217a878cf990fc491c9432c, neither all_entry_sizes nor
all_direct_buckets were defined.
