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1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef MOJO_PUBLIC_CPP_BINDINGS_LIB_VALIDATION_UTIL_H_ | |
6 #define MOJO_PUBLIC_CPP_BINDINGS_LIB_VALIDATION_UTIL_H_ | |
7 | |
8 #include <stdint.h> | |
9 | |
10 #include <string> | |
11 | |
12 #include "mojo/public/cpp/bindings/lib/bounds_checker.h" | |
13 #include "mojo/public/cpp/bindings/lib/validation_errors.h" | |
14 | |
15 namespace mojo { | |
16 namespace internal { | |
17 | |
18 // Checks whether decoding the pointer will overflow and produce a pointer | |
19 // smaller than |offset|. | |
20 bool ValidateEncodedPointer(const uint64_t* offset); | |
21 | |
22 // Validates that |data| contains a valid struct header, in terms of alignment | |
23 // and size (i.e., the |num_bytes| field of the header is sufficient for storing | |
24 // the header itself). Besides, it checks that the memory range | |
25 // [data, data + num_bytes) is not marked as occupied by other objects in | |
26 // |bounds_checker|. On success, the memory range is marked as occupied. | |
27 // Note: Does not verify |version| or that |num_bytes| is correct for the | |
28 // claimed version. | |
29 ValidationError ValidateStructHeaderAndClaimMemory( | |
30 const void* data, | |
31 BoundsChecker* bounds_checker, | |
32 std::string* err); | |
33 | |
34 } // namespace internal | |
35 } // namespace mojo | |
36 | |
37 #endif // MOJO_PUBLIC_CPP_BINDINGS_LIB_VALIDATION_UTIL_H_ | |
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