1 /*
2    Unix SMB/CIFS implementation.
3    DCOM proxy tables functionality
4    Copyright (C) 2005 Jelmer Vernooij <jelmer@samba.org>
5    Copyright (C) 2006 Andrzej Hajda <andrzej.hajda@wp.pl>
6 
7    This program is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; either version 2 of the License, or
10    (at your option) any later version.
11 
12    This program is distributed in the hope that it will be useful,
13    but WITHOUT ANY WARRANTY; without even the implied warranty of
14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15    GNU General Public License for more details.
16 
17    You should have received a copy of the GNU General Public License
18    along with this program; if not, write to the Free Software
19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 */
21 
22 #include "includes.h"
23 #include "../lib/util/dlinklist.h"
24 #include "librpc/gen_ndr/com_dcom.h"
25 #include "lib/com/dcom/dcom.h"
26 
27 static struct dcom_proxy {
28 	struct IUnknown_vtable *vtable;
29 	struct dcom_proxy *prev, *next;
30 }  *proxies = NULL;
31 
dcom_register_proxy(TALLOC_CTX * ctx,struct IUnknown_vtable * proxy_vtable)32 NTSTATUS dcom_register_proxy(TALLOC_CTX *ctx,
33 		struct IUnknown_vtable *proxy_vtable)
34 {
35 	struct dcom_proxy *proxy = talloc(ctx, struct dcom_proxy);
36 
37 	proxy->vtable = proxy_vtable;
38 	DLIST_ADD(proxies, proxy);
39 
40 	return NT_STATUS_OK;
41 }
42 
dcom_proxy_vtable_by_iid(struct GUID * iid)43 struct IUnknown_vtable *dcom_proxy_vtable_by_iid(struct GUID *iid)
44 {
45 	struct dcom_proxy *p;
46 	for (p = proxies; p; p = p->next) {
47 		if (GUID_equal(&p->vtable->iid, iid)) {
48 			return p->vtable;
49 		}
50 	}
51 	return NULL;
52 }
53 
54 static struct dcom_marshal {
55 	struct GUID clsid;
56 	marshal_fn marshal;
57 	unmarshal_fn unmarshal;
58 	struct dcom_marshal *prev, *next;
59 }  *marshals = NULL;
60 
dcom_register_marshal(TALLOC_CTX * ctx,struct GUID * clsid,marshal_fn marshal,unmarshal_fn unmarshal)61 NTSTATUS dcom_register_marshal(TALLOC_CTX *ctx,
62 		struct GUID *clsid, marshal_fn marshal, unmarshal_fn unmarshal)
63 {
64 	struct dcom_marshal *p = talloc(ctx, struct dcom_marshal);
65 
66 	p->clsid = *clsid;
67 	p->marshal = marshal;
68 	p->unmarshal = unmarshal;
69 	DLIST_ADD(marshals, p);
70 	return NT_STATUS_OK;
71 }
72 
dcom_marshal_by_clsid(struct GUID * clsid)73 _PUBLIC_ marshal_fn dcom_marshal_by_clsid(struct GUID *clsid)
74 {
75 	struct dcom_marshal *p;
76 	for (p = marshals; p; p = p->next) {
77 		if (GUID_equal(&p->clsid, clsid)) {
78 			return p->marshal;
79 		}
80 	}
81 	return NULL;
82 }
83 
dcom_unmarshal_by_clsid(struct GUID * clsid)84 _PUBLIC_ unmarshal_fn dcom_unmarshal_by_clsid(struct GUID *clsid)
85 {
86 	struct dcom_marshal *p;
87 	for (p = marshals; p; p = p->next) {
88 		if (GUID_equal(&p->clsid, clsid)) {
89 			return p->unmarshal;
90 		}
91 	}
92 	return NULL;
93 }
94 
95