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Side by Side Diff: sandbox/linux/seccomp-bpf/syscall_iterator.h

Issue 11411254: SECCOMP-BPF: Added supported for inspection system call arguments from BPF filters. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Another attempt at fixing the rebase Created 8 years ago
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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_SYSCALL_ITERATOR_H__ 5 #ifndef SANDBOX_LINUX_SECCOMP_BPF_SYSCALL_ITERATOR_H__
6 #define SANDBOX_LINUX_SECCOMP_BPF_SYSCALL_ITERATOR_H__ 6 #define SANDBOX_LINUX_SECCOMP_BPF_SYSCALL_ITERATOR_H__
7 7
8 #include <stdint.h> 8 #include <stdint.h>
9 9
10 #include <base/logging.h>
11
12 namespace playground2 { 10 namespace playground2 {
13 11
14 // Iterates over the entire system call range from 0..0xFFFFFFFFu. This 12 // Iterates over the entire system call range from 0..0xFFFFFFFFu. This
15 // iterator is aware of how system calls look like and will skip quickly 13 // iterator is aware of how system calls look like and will skip quickly
16 // over ranges that can't contain system calls. It iterates more slowly 14 // over ranges that can't contain system calls. It iterates more slowly
17 // whenever it reaches a range that is potentially problematic, returning 15 // whenever it reaches a range that is potentially problematic, returning
18 // the last invalid value before a valid range of system calls, and the 16 // the last invalid value before a valid range of system calls, and the
19 // first invalid value after a valid range of syscalls. It iterates over 17 // first invalid value after a valid range of syscalls. It iterates over
20 // individual values whenever it is in the normal range for system calls 18 // individual values whenever it is in the normal range for system calls
21 // (typically MIN_SYSCALL..MAX_SYSCALL). 19 // (typically MIN_SYSCALL..MAX_SYSCALL).
(...skipping 20 matching lines...) Expand all
42 uint32_t Next(); 40 uint32_t Next();
43 static bool IsValid(uint32_t num); 41 static bool IsValid(uint32_t num);
44 42
45 private: 43 private:
46 static bool IsArmPrivate(uint32_t num); 44 static bool IsArmPrivate(uint32_t num);
47 45
48 bool invalid_only_; 46 bool invalid_only_;
49 bool done_; 47 bool done_;
50 uint32_t num_; 48 uint32_t num_;
51 49
52 DISALLOW_COPY_AND_ASSIGN(SyscallIterator); 50 DISALLOW_IMPLICIT_CONSTRUCTORS(SyscallIterator);
53 }; 51 };
54 52
55 } // namespace playground2 53 } // namespace playground2
56 54
57 #endif // SANDBOX_LINUX_SECCOMP_BPF_SYSCALL_ITERATOR_H__ 55 #endif // SANDBOX_LINUX_SECCOMP_BPF_SYSCALL_ITERATOR_H__
58 56
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