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Let's try to standardize on a single non-cryptographic hash algorithm,
and for that SipHash appears to be the best answer.
With this change there are two other hash functions left in systemd: an
older version of MurmurHash embedded into libudev for the bloom filters
in udev messages (which is hard to update, given that the we probably
should stay compatible with older versions of the library). And lookup3
in the journal files (which we could replace for new files, but which is
probably not worth the work).
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Units from user services underneath user@.service would not be detected
properly.
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Also, introduce a new environment variable named $WATCHDOG_PID which
cotnains the PID of the process that is supposed to send the keep-alive
events. This is similar how $LISTEN_FDS and $LISTEN_PID work together,
and protects against confusing processes further down the process tree
due to inherited environment.
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SipHash appears to be the new gold standard for hashing smaller strings
for hashtables these days, so let's make use of it.
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This reverts commit 9818fa6d6d32d87a3e1b96934a54523ea6b02879.
The proxy does not work anymore with this patch.
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Reuse existing functionality when adding T2 Rebinding support.
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Factor out common code from timeout T1 handling and starting of
the DHCP client.
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Expiration of T1 timeout takes the client to the Rebinding state,
where it attempts to renew its lease. Start by opening a DCHP unicast
socket as there now is a proper IP address set.
Compute the resend timer as half of the remaining time down to a
minimum of 60 seconds (RFC2131). Modify DHCP Request sending to send
only UDP DHCP data when unicasting. Also modify DHCP Ack/Nak
receiving such that the client_receive_ack() takes care of using
either the full IP, UDP, DHCP packet or only the DHCP payload
depending whether the client is in Requesting or Renewing state.
Finally always report DHCP_EVENT_IP_ACQUIRE from Requesting state
and only DHCP_EVENT_IP_CHANGE if the IP address was modified when
the lease was renewed.
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Create a helper functions setting up an unicast DHCP UDP socket and
sending data. Add function stubs for the test program.
[tomegun: initialize structs when allocating, and drop unneccesary 'err']
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Fix off-by-one error and notice that summing may need more than one
round for the result to be in the lower 16 bits.
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When a DHCP Nak is received, return a DHCP_EVENT_NO_LEASE event. If
some other DHCP message is received or an error happens when parsing
options, return -ENOMSG in order to ignore the packet. There may be
more than one server serving the same subnet, each server will send
its Offer to the client.
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This also fixes a minor indentation damage.
[tomegun: use close_noint_nofail() instead and drop 'err' variables]
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Noticed-by: Jan Alexander Steffens <jan.steffens@gmail.com>
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This fixes a regression introduced in 64e70e4 where the mount fails
when fstab is misconfigured with fs_passno > 0 on a virtual file
system like nfs, and the type is specified as "auto".
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Since the vtable includes this information anyway, let's just use that
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When NULL is passed this shall indicate that a PropertiesChanged message
for all properties marked as EMITS_CHANGE or EMITS_INVALIDATION should
be generated.
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where appropriate
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This way we have four kinds of properties:
a) those which are constant as long as an object exists
b) those which can change and PropertiesChange messages with contents are generated
c) those which can change and where the PropertesChange merely includes invalidation
d) those which can change but for which no events are generated
Clients (through code generators run on the introspection XML) can thus
aggressively cache a, b, c, with only d excluded.
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This commit also adds error handling for failures during
directory reading.
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The available_space function now returns 0 if reading the directory
fails. Previously, such errors were silently ignored.
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This fixes rm_rf_children_dangerous to detect errors during directory
reading. Previously, it could dereference an uninitialized pointer.
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The old code incorrectly assumed that readdir_r updates errno.
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Commit f8f14b3654bcd introduced a regression that makes
loginctl session-status to not show the correct session ID(s)
In print_session_status_info() the map[] array, element "Seat" receives
the offset of the "id" in "SessionStatusInfo" struct instead of the
offset of the "seat" member.
This will cause prop_map_first_of_struct() function to overwrite the
SessionStatusInfo.id memory with seats if there are any.
Fix this typo by using the "seat" member.
Before:
- tixxdz (1000)
Since: Sat 2013-12-21 10:07:23 CET; 5h 26min ago
Leader: 1265 (sshd)
After:
1 - tixxdz (1000)
Since: Sat 2013-12-21 10:07:23 CET; 5h 26min ago
Leader: 1265 (sshd)
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activated, say we don't have anything.
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