OLD | NEW |
| (Empty) |
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_ | |
OLD | NEW |