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Side by Side Diff: third_party/mojo/src/mojo/public/cpp/bindings/lib/validation_util.h

Issue 1410053006: Move third_party/mojo/src/mojo/public to mojo/public (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: merge Created 5 years, 1 month ago
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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 THIRD_PARTY_MOJO_SRC_MOJO_PUBLIC_CPP_BINDINGS_LIB_VALIDATION_UTIL_H_
6 #define THIRD_PARTY_MOJO_SRC_MOJO_PUBLIC_CPP_BINDINGS_LIB_VALIDATION_UTIL_H_
7
8 #include <stdint.h>
9
10 #include "third_party/mojo/src/mojo/public/cpp/bindings/lib/bounds_checker.h"
11 #include "third_party/mojo/src/mojo/public/cpp/bindings/message.h"
12
13 namespace mojo {
14 namespace internal {
15
16 // Checks whether decoding the pointer will overflow and produce a pointer
17 // smaller than |offset|.
18 bool ValidateEncodedPointer(const uint64_t* offset);
19
20 // Validates that |data| contains a valid struct header, in terms of alignment
21 // and size (i.e., the |num_bytes| field of the header is sufficient for storing
22 // the header itself). Besides, it checks that the memory range
23 // [data, data + num_bytes) is not marked as occupied by other objects in
24 // |bounds_checker|. On success, the memory range is marked as occupied.
25 // Note: Does not verify |version| or that |num_bytes| is correct for the
26 // claimed version.
27 bool ValidateStructHeaderAndClaimMemory(const void* data,
28 BoundsChecker* bounds_checker);
29
30 // Validates that the message is a request which doesn't expect a response.
31 bool ValidateMessageIsRequestWithoutResponse(const Message* message);
32 // Validates that the message is a request expecting a response.
33 bool ValidateMessageIsRequestExpectingResponse(const Message* message);
34 // Validates that the message is a response.
35 bool ValidateMessageIsResponse(const Message* message);
36
37 // Validates that the message payload is a valid struct of type ParamsType.
38 template <typename ParamsType>
39 bool ValidateMessagePayload(const Message* message) {
40 BoundsChecker bounds_checker(message->payload(), message->payload_num_bytes(),
41 message->handles()->size());
42 return ParamsType::Validate(message->payload(), &bounds_checker);
43 }
44
45 // The following methods validate control messages defined in
46 // interface_control_messages.mojom.
47 bool ValidateControlRequest(const Message* message);
48 bool ValidateControlResponse(const Message* message);
49
50 } // namespace internal
51 } // namespace mojo
52
53 #endif // THIRD_PARTY_MOJO_SRC_MOJO_PUBLIC_CPP_BINDINGS_LIB_VALIDATION_UTIL_H_
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