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/*
Unix SMB/CIFS implementation.
server side dcerpc handle code
Copyright (C) Andrew Tridgell 2003
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "lib/util/dlinklist.h"
#include "rpc_server/dcerpc_server.h"
/*
destroy a rpc handle
*/
static int dcesrv_handle_destructor(struct dcesrv_handle *h)
{
DLIST_REMOVE(h->context->handles, h);
talloc_free(h);
return 0;
}
/*
allocate a new rpc handle
*/
_PUBLIC_ struct dcesrv_handle *dcesrv_handle_new(struct dcesrv_connection_context *context,
uint8_t handle_type)
{
struct dcesrv_handle *h;
h = talloc(context, struct dcesrv_handle);
if (!h) {
return NULL;
}
h->data = NULL;
h->context = context;
h->wire_handle.handle_type = handle_type;
h->wire_handle.uuid = GUID_random();
DLIST_ADD(context->handles, h);
talloc_set_destructor(h, dcesrv_handle_destructor);
return h;
}
/*
find an internal handle given a wire handle. If the wire handle is NULL then
allocate a new handle
*/
_PUBLIC_ struct dcesrv_handle *dcesrv_handle_fetch(struct dcesrv_connection_context *context,
struct policy_handle *p,
uint8_t handle_type)
{
struct dcesrv_handle *h;
if (policy_handle_empty(p)) {
return dcesrv_handle_new(context, handle_type);
}
for (h=context->handles; h; h=h->next) {
if (h->wire_handle.handle_type == p->handle_type &&
GUID_equal(&p->uuid, &h->wire_handle.uuid)) {
if (handle_type != DCESRV_HANDLE_ANY &&
p->handle_type != handle_type) {
DEBUG(0,("client gave us the wrong handle type (%d should be %d)\n",
p->handle_type, handle_type));
return NULL;
}
return h;
}
}
return NULL;
}
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