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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef SANDBOX_LINUX_SECCOMP_BPF_VERIFIER_H__ | 5 #ifndef SANDBOX_LINUX_SECCOMP_BPF_VERIFIER_H__ |
6 #define SANDBOX_LINUX_SECCOMP_BPF_VERIFIER_H__ | 6 #define SANDBOX_LINUX_SECCOMP_BPF_VERIFIER_H__ |
7 | 7 |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include <vector> | 10 #include <vector> |
11 | 11 |
12 #include "base/macros.h" | 12 #include "base/macros.h" |
13 #include "sandbox/sandbox_export.h" | |
14 | 13 |
15 struct sock_filter; | 14 struct sock_filter; |
16 | 15 |
17 namespace sandbox { | 16 namespace sandbox { |
18 struct arch_seccomp_data; | 17 struct arch_seccomp_data; |
19 namespace bpf_dsl { | 18 namespace bpf_dsl { |
20 class Policy; | 19 class Policy; |
21 class PolicyCompiler; | 20 class PolicyCompiler; |
22 } | 21 } |
23 | 22 |
24 class SANDBOX_EXPORT Verifier { | 23 class Verifier { |
25 public: | 24 public: |
26 // Evaluate the BPF program for all possible inputs and verify that it | 25 // Evaluate the BPF program for all possible inputs and verify that it |
27 // computes the correct result. We use the "evaluators" to determine | 26 // computes the correct result. We use the "evaluators" to determine |
28 // the full set of possible inputs that we have to iterate over. | 27 // the full set of possible inputs that we have to iterate over. |
29 // Returns success, if the BPF filter accurately reflects the rules | 28 // Returns success, if the BPF filter accurately reflects the rules |
30 // set by the "evaluators". | 29 // set by the "evaluators". |
31 // Upon success, "err" is set to NULL. Upon failure, it contains a static | 30 // Upon success, "err" is set to NULL. Upon failure, it contains a static |
32 // error message that does not need to be free()'d. | 31 // error message that does not need to be free()'d. |
33 static bool VerifyBPF(bpf_dsl::PolicyCompiler* compiler, | 32 static bool VerifyBPF(bpf_dsl::PolicyCompiler* compiler, |
34 const std::vector<struct sock_filter>& program, | 33 const std::vector<struct sock_filter>& program, |
(...skipping 12 matching lines...) Expand all Loading... |
47 const struct arch_seccomp_data& data, | 46 const struct arch_seccomp_data& data, |
48 const char** err); | 47 const char** err); |
49 | 48 |
50 private: | 49 private: |
51 DISALLOW_IMPLICIT_CONSTRUCTORS(Verifier); | 50 DISALLOW_IMPLICIT_CONSTRUCTORS(Verifier); |
52 }; | 51 }; |
53 | 52 |
54 } // namespace sandbox | 53 } // namespace sandbox |
55 | 54 |
56 #endif // SANDBOX_LINUX_SECCOMP_BPF_VERIFIER_H__ | 55 #endif // SANDBOX_LINUX_SECCOMP_BPF_VERIFIER_H__ |
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