sin/samba-mirror
1
0
Fork 0
mirror of https://github.com/samba-team/samba.git synced 2025-01-24 02:04:21 +03:00
Code

s4:rpc_server: implement DCERPC_PFC_FLAG_CONC_MPX ordering restrictions

Browse Source 
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
This commit is contained in:
Stefan Metzmacher 2016-09-16 12:35:54 +02:00 committed by Andreas Schneider
parent 50392a9252
commit a9be262daa
1 changed files with 25 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
source4/rpc_server/dcerpc_server.c
View File

@ -1619,10 +1619,33 @@ static NTSTATUS dcesrv_process_ncacn_packet(struct dcesrv_connection *dce_conn,
}
if (call->pkt.pfc_flags & DCERPC_PFC_FLAG_FIRST) {
if (dce_conn->pending_call_list != NULL) {
/*
* concurrent requests are only allowed
* if DCERPC_PFC_FLAG_CONC_MPX was negotiated.
*/
if (!(dce_conn->state_flags & DCESRV_CALL_STATE_FLAG_MULTIPLEXED)) {
dcesrv_call_disconnect_after(call,
"dcesrv_auth_request - "
"existing pending call without CONN_MPX");
return dcesrv_fault(call,
DCERPC_NCA_S_PROTO_ERROR);
}
}
/* only one request is possible in the fragmented list */
if (dce_conn->incoming_fragmented_call_list != NULL) {
TALLOC_FREE(call);
call = dce_conn->incoming_fragmented_call_list;
if (!(dce_conn->state_flags & DCESRV_CALL_STATE_FLAG_MULTIPLEXED)) {
/*
* Without DCERPC_PFC_FLAG_CONC_MPX
* we need to return the FAULT on the
* already existing call.
*
* This is important to get the
* call_id and context_id right.
*/
TALLOC_FREE(call);
call = dce_conn->incoming_fragmented_call_list;
}
dcesrv_call_disconnect_after(call,
"dcesrv_auth_request - "
"existing fragmented call");