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We need to free the lp_ctx after we free the event context, otherwise
the teardown code in the notify backend dies when it tries to use the
iconv_convenience ptr
Fixes bug 7053
Cope with a wider range of auth padding in dcerpc bind_ack and
alter_context packets. We now use a helper function that calculates
the right auth padding.
Cause all exit paths to go through one place, where all cleanup is
done. change_to_root_user() for pathname operations that should succeed if
the path exists, even if the connecting user has no access.
For example, a share can now be defined with a path of /root/only/access
(where /root/only/access is a directory path with all components only
accessible to root e.g. root owned, permissions 700 on every component).
Non-root users will now correctly connect, but get ACCESS_DENIED on
all activities (which matches Windows behavior). Previously, non-root
users would get NT_STATUS_BAD_NETWORK_NAME on doing a TConX to this
share, even though it's a perfectly valid share path (just not accessible
to them).
This change was inspired by the research I did for bug #7126, which
was reported by bepi@adria.it.
As this is a change in a core function, I'm proposing to leave
this only in master for 3.6.0, not back-port to any existing releases.
This should give us enough time to decide if this is the way we want this to
behave (as Windows) or if we prefer the previous behavior.
Jeremy.
The "lock spin time" parameter mimics the following Windows
setting which by default is 250ms in Windows and 200ms in Samba.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters\LockViolationDelay
When a client sends repeated, non-blocking, contending BRL requests
to a Windows server, after the first Windows starts treating these
requests as timed blocking locks with the above timeout.
As an efficiency, I've changed the behavior when this setting is 0,
to skip this logic and treat all requests as non-blocking locks.
This gives the smbd server behavior similar to the 3.0 release with
the do_spin_lock() implementation.
I've also changed the blocking lock parameter in the call from
push_blocking_lock_request() to true as all requests made in this
path are blocking by definition.
As tridge's comment says, we should be ignoring ACCESS_DENIED
on the share path in a TconX call, instead allowing the mount
and having individual SMB calls fail (as Windows does). The
original code erroneously caught SMB_VFS_STAT != 0 and errored
out on that.
Jeremy.
