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- talloc should always be done in the right context. For example, when creating
the userinfo_state structure, place it inside the composite
structure, not directly on the pipe. If this isn't done then
correct cleanup can't happen on errors (as cleanup destroys the top
level composite context only)
- define private structures like userinfo_state in the userinfo.c
code, not in the public header
- only keep the parameters we need in the state structure. For
example, the domain_handle is only needed in the first call, so we
don't need to keep it around in the state structure, but the level is
needed in later calls, so we need to keep it
- always initialise [out,ref] parameters in RPC calls. The [ref] part
means that the call assumes the pointer it has been given is
valid. If you don't initialise it then you will get a segv on
recv. This is why the code was dying.
- don't use internal strucrure elements like the pipe
pipe->conn->pending outside of the internal rpc implementation. That
is an internal list, trying to use it from external code will cause crashes.
- rpc calls assume that rpc call strucrures remain valid for the
duration of the call. This means you need to keep the structures
(such as "struct samr_Close") in the userinfo_state strucrure,
otherwise it will go out of scope during the async processing
- need to remember to change c->state to SMBCLI_REQUEST_DONE when the
request has finished in the close handler, otherwise it will loop
forever trying to close
Mimir, please look at the diff carefully for more detailed info on the fixes
(This used to be commit 01ea1e7762e214e87e74d6f28d6efeb6cdea9736)
The main volume of this patch was what I started working on today:
- Cleans up memory handling around DCE/RPC pipes, to have a parent talloc context.
- Uses sepereate inner loops for some of the DCE/RPC tests
The other and more important part of this patch fixes issues
surrounding the new credentials framwork:
This makes the struct cli_credentials always a talloc() structure,
rather than on the stack. Parts of the cli_credentials code already
assumed this.
There were other issues, particularly in the DCERPC over SMB handling,
as well as little things that had to be tidied up before test_w2k3.sh
would start to pass.
Andrew Bartlett
(This used to be commit 0453f9d05d2e336fba1f85dbf2718d01fa2bf778)
I wanted to add a simple 'workstation' argument to the DCERPC
authenticated binding calls, but this patch kind of grew from there.
With SCHANNEL, the 'workstation' name (the netbios name of the client)
matters, as this is what ties the session between the NETLOGON ops and
the SCHANNEL bind. This changes a lot of files, and these will again
be changed when jelmer does the credentials work.
I also correct some schannel IDL to distinguish between workstation
names and account names. The distinction matters for domain trust
accounts.
Issues in handling this (issues with lifetime of talloc pointers)
caused me to change the 'creds_CredentialsState' and 'struct
dcerpc_binding' pointers to always be talloc()ed pointers.
In the schannel DB, we now store both the domain and computername, and
query on both. This should ensure we fault correctly when the domain
is specified incorrectly in the SCHANNEL bind.
In the RPC-SCHANNEL test, I finally fixed a bug that vl pointed out,
where the comment claimed we re-used a connection, but in fact we made
a new connection.
This was achived by breaking apart some of the
dcerpc_secondary_connection() logic.
The addition of workstation handling was also propogated to NTLMSSP
and GENSEC, for completeness.
The RPC-SAMSYNC test has been cleaned up a little, using a loop over
usernames/passwords rather than manually expanded tests. This will be
expanded further (the code in #if 0 in this patch) to use a newly
created user account for testing.
In making this test pass test_rpc.sh, I found a bug in the RPC-ECHO
server, caused by the removal of [ref] and the assoicated pointer from
the IDL. This has been re-added, until the underlying pidl issues are
solved.
(This used to be commit 824289dcc20908ddec957a4a892a103eec2da9b9)
array can now only be :
type *name[];
rather then :
type *name;
which was supported in the past. Warnings will be given when the first
syntax is used. Reasons for this change in behaviour include improved
readability and the fact that the second format makes dealing with multiple
levels of pointers harder.
(This used to be commit a416de5825c540fd3741731c4be05e9a659a6fdb)
