Ondřej Kuzník
1740f36bfc
Fix emfile handling
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
30e538e836
Realign logging levels.
...
Stats now logs all operations, stats2 additionally intermediate messages
(search entries).
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
1dd0e5131a
Only one bind at a time
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
33a993553d
Unblock the client when we can't find an upstream
...
If we can't find an upstream, we keep the client around, so it needs to
be unblocked.
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
95df8a1ec8
Adjust backend operation counting
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
baf1feab82
Handle asynchronous connect properly
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
46fe014378
Make sure operation stays alive when we process it
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
0ff462b619
Fix issues in bind response handling
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
545198c70d
Simplify abandon processing
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
88390159a1
On connection shutdown, free op from the correct side
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
37cff37305
Manage connection refcnt better
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
af7ce80c85
Remember and clear bind status correctly
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
05f2ac2583
Unify logging output
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
873d6fa3e1
Handle backend unsolicited response properly
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
961b600a42
Rework proxyauthz handling
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
6ee21f1181
Split bind configuration from backends
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
0e7792e8f3
Borrow liblber code to get abandon processing to work
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
7eeb5bb801
Forward controls correctly in the face of proxyauth
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
5b1ad43178
Handle upstream connection shutdown properly
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
c228bd1160
Be consistent with bind responses on no upstream
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
a8a0fe26b0
Documentation updates
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
495dfa69a2
Split client/upstream PDU size limits
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
3fa8a0cdf2
Rename listener-threads to reflect the option
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
1082486874
Only enable verifycredentials if libldap does
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
1dfeca3539
Another attempt at operation/connection destroy interaction.
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
26f721510a
Improve logging
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
3f5dee0b79
Keep a list of active clients for shutdown purposes.
...
Potentially for timeout detection purposes in the future.
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
e0b8bd5fc9
Free all pending operations on shutdown
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
cf05722b6c
Lookup operations by saved connid.
...
We reset the connection pointer on a destruction attempt, avoid the
spurious asserts.
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
f4afc06920
Tweak connection error logging.
...
Do not log when receiving the last bytes on a connection. Log failed
writes.
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
d020897f5b
Initialise listeners after all workers have been
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
37a474b508
Fix error handling wrt. its callers
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
ee288cfc2d
Fix refcounting for all code paths
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
53015aa4cb
Round robin for backends.
...
Several threads calling backend_select might reset current_backend to a
different place, there are two options to deal with that:
- just let the last rotation win (the current approach)
- detect whether first == current_backend and only replace then
Not sure which one is more useful, going with the simpler.
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
e65cd38787
Round-robin for upstream connections
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
58a880bc7b
Convert backend and upstream management to use CIRCLEQ.
...
This alone doesn't make the server do a round robin.
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
643194e79e
Revert connection/operation mutex order.
...
There was still a race where the connection could be freed as the
operation was still being used.
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
9ebe5acb62
Clean up events properly
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
8eb7f3fbca
Stop the read callback on a dead connection.
...
The connection might be ready to read (close) but if we can't destroy it
yet, we don't want the callback to trigger all the time or process new
data.
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
6899d0123d
Do not bother to write to a dying connection
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
77f2c57132
Reset c_*ber after freeing and check c_pendingber race
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
07b5744c2a
Retain a reference around for handle_responses
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
c5584fd32a
Do not leak responses to abandoned ops
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
7a29fabd09
Destroy the unbind operation when acted upon
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
9d66c26be5
Operation reference counting
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
ea7e40b8e7
Shutdown handling
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
837a6068e0
Rework client_read_cb along the lines of upstream
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
028f28690f
On a failed bind, stop the callback from firing again
...
Not a problem but causes a slew of calls to upstream_bind_cb that will
all fail in the same way.
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
cddc96322d
Do not clear c_pendingber on short write
2020-11-17 17:55:46 +00:00
Ondřej Kuzník
fba4bed6e2
connection reference counting
2020-11-17 17:55:46 +00:00
