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it needs the specific error message.
Make messages.c return NTSTATUS and specificially NT_STATUS_INVALID_HANDLE if
sending to a non-existent process.
Volker
(This used to be commit 3f620d181da0c356c8ffbdb5b380ccab3645a972)
void message_register(int msg_type,
void (*fn)(int msg_type, struct process_id pid,
- void *buf, size_t len))
+ void *buf, size_t len,
+ void *private_data),
+ void *private_data)
{
struct dispatch_fns *dfn;
So this adds a (so far unused) private pointer that is passed from
message_register to the message handler. A prerequisite to implement a tiny
samba4-API compatible wrapper around our messaging system. That itself is
necessary for the Samba4 notify system.
Yes, I know, I could import the whole Samba4 messaging system, but I want to
do it step by step and I think getting notify in is more important in this
step.
Volker
(This used to be commit c8ae60ed65dcce9660ee39c75488f2838cf9a28b)
per type - this is all we use right now and makes
re-entrancy problems with deleting handlers with
a message dispatch loop go away.
Jeremy.
(This used to be commit 2e9b6faeae1474d65a5c12f5a19b0ae045d47c2e)
in tdb message processing. If we're inside a dispatch
function and we delete our own handler we'd walk onto
the next pointer from a deleted memory block. Fixes
crash bug in winbindd (and goodness knows where else).
Jeremy.
(This used to be commit 27a4c1121404e346432d90b97b518861e038e9f2)
calls make it :
become_root_uid_only()
operation
unbecome_root_uid_only()
saving errno across the second call. Most of our internal
change calls can be replaced with these simple calls.
Jeremy
(This used to be commit 4143aa83c029848d8ec741d9218b3fa6e3fd28dd)
fix the messaging code to call the efficient calls :
save_re_uid()
set_effective_uid(0);
messaging_op
restore_re_uid();
instead of using heavyweight become_root()/unbecome_root()
pairs around all messaging code. Fixup the messaging
code to ensure sec_init() is called (only once) so that non-root
processes still work when sending messages.
This is a lighter weight solution to become_root()/unbecome_root()
(which swaps all the supplemental groups) and should be more
efficient. I will migrate all server code over to using this
(a similar technique should be used in the passdb backend
where needed).
Jeremy.
(This used to be commit 4ace291278d9a44f5c577bdd3b282c1231e543df)
* \PIPE\unixinfo
* winbindd's {group,alias}membership new functions
* winbindd's lookupsids() functionality
* swat (trunk changes to be reverted as per discussion with Deryck)
(This used to be commit 939c3cb5d78e3a2236209b296aa8aba8bdce32d3)
a big relief on messages.tdb contention as ignoring processes with >1000
messages in printing/notify.c should work correctly now.
Jeremy, Jerry told me to ask you about printer scalability torture tests, this
might be a reason why you implemented the message_send_pid_with_timeout
using the signal (shudder) in the first place. :-)
While looking at that... Wouldn't it be better to not use the signal but have
an overall timeout for print_notify_send_messages using GetTimeOfDay & friends
and not use the alarm signal deep inside tdb.c?
Volker
(This used to be commit b5e82bb512d3425839e061e78f4d6fe0bd05b708)
printmig.exe work
* merge the sys_select_signal(char c) change from trunk
in order to keeo the winbind code in sync
(This used to be commit a112c5570a7f8ddddde1af0fa665f40a6067e8cf)
functions so we can funnel through some well known functions. Should help greatly with
malloc checking.
HEAD patch to follow.
Jeremy.
(This used to be commit 620f2e608f70ba92f032720c031283d295c5c06a)
messages. Stops build-up of large numbers of smbd's waiting to terminate
on large print throughput.
Jeremy.
(This used to be commit 07efebb98473cb3d4adc6b2e0afef3f06dcc99b8)
the amount of time we hold tdb locks). Gulp down all messages at once rather
than reading/re-writing one at a time. NOTE: All dispatch routines *must*
be able to cope with incoming message on *odd* byte boundaries (all current
handlers do).
Jeremy.
(This used to be commit b752c0340f96669b2b2573cf7d3d10f99580b070)
pid. This follows a bug in rsync where it would accidentally
kill(-1), removing all the user's processes. I can't see any way this
would directly happen in Samba, but having the assertions seems
beneficial.
http://cvs.samba.org/cgi-bin/cvsweb/rsync/util.c.diff?r1=1.108&r2=1.109&f=h
(This used to be commit 098905bea29c7d5b886809d431294ddf2fc1e152)
this is needed because W2K will send a TCP reset to any open
connections that have not done a negprot when a second connection is
made. This meant that under heavy netlogon load a Samba domain member
would fail authentications.
Jeremy, you may wish to port this to 2.2.x
(This used to be commit eb196070e62b45b113e5712f27198c50c5c95657)
