1/*
2 * Copyright (c) 2007 Apple Inc. All Rights Reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23
24//
25// singlediskrep - semi-abstract diskrep for a single file of some kind
26//
27#ifndef _H_SINGLEDISKREP
28#define _H_SINGLEDISKREP
29
30#include "diskrep.h"
31#include <security_utilities/unix++.h>
32
33namespace Security {
34namespace CodeSigning {
35
36
37//
38// A slight specialization of DiskRep that knows that it's working with a single
39// file at a path that is both the canonical and main executable path. This is a common
40// pattern.
41//
42// A SingleDiskRep is not a fully formed DiskRep in its own right. It must be further
43// subclassed.
44//
45class SingleDiskRep : public DiskRep {
46public:
47	SingleDiskRep(const std::string &path);
48
49	CFDataRef identification();								// partial file hash
50	std::string mainExecutablePath();						// base path
51	CFURLRef copyCanonicalPath();							// base path
52	size_t signingLimit();									// size of file
53	UnixPlusPlus::FileDesc &fd();							// readable fd for this file
54	void flush();											// close cached fd
55
56	std::string recommendedIdentifier(const SigningContext &ctx); // basename(path)
57
58public:
59	class Writer;
60
61protected:
62	std::string path() const { return mPath; }
63
64private:
65	std::string mPath;
66	UnixPlusPlus::AutoFileDesc mFd;							// open file (cached)
67};
68
69
70//
71// A Writer for a SingleDiskRep
72//
73class SingleDiskRep::Writer : public DiskRep::Writer {
74public:
75	Writer(SingleDiskRep *r, uint32_t attrs = 0) : DiskRep::Writer(attrs), rep(r) { }
76
77	UnixPlusPlus::FileDesc &fd();
78
79private:
80	RefPointer<SingleDiskRep> rep;							// underlying SingleDiskRep
81	UnixPlusPlus::AutoFileDesc mFd;							// cached writable fd
82};
83
84
85
86} // end namespace CodeSigning
87} // end namespace Security
88
89#endif // !_H_SINGLEDISKREP
90