1 files changed, 0 insertions, 86 deletions
diff --git a/sandbox/linux/seccomp-bpf/trap.h b/sandbox/linux/seccomp-bpf/trap.h
deleted file mode 100644
index a73d2064b4..0000000000
--- a/sandbox/linux/seccomp-bpf/trap.h
+++ /dev/null
@@ -1,86 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef SANDBOX_LINUX_SECCOMP_BPF_TRAP_H__
-#define SANDBOX_LINUX_SECCOMP_BPF_TRAP_H__
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <map>
-
-#include "base/macros.h"
-#include "sandbox/linux/bpf_dsl/trap_registry.h"
-#include "sandbox/linux/system_headers/linux_signal.h"
-#include "sandbox/sandbox_export.h"
-
-namespace sandbox {
-
-// The Trap class allows a BPF filter program to branch out to user space by
-// raising a SIGSYS signal.
-// N.B.: This class does not perform any synchronization operations. If
-//   modifications are made to any of the traps, it is the caller's
-//   responsibility to ensure that this happens in a thread-safe fashion.
-//   Preferably, that means that no other threads should be running at that
-//   time. For the purposes of our sandbox, this assertion should always be
-//   true. Threads are incompatible with the seccomp sandbox anyway.
-class SANDBOX_EXPORT Trap : public bpf_dsl::TrapRegistry {
- public:
-  uint16_t Add(TrapFnc fnc, const void* aux, bool safe) override;
-
-  bool EnableUnsafeTraps() override;
-
-  // Registry returns the trap registry used by Trap's SIGSYS handler,
-  // creating it if necessary.
-  static bpf_dsl::TrapRegistry* Registry();
-
-  // SandboxDebuggingAllowedByUser returns whether the
-  // "CHROME_SANDBOX_DEBUGGING" environment variable is set.
-  static bool SandboxDebuggingAllowedByUser();
-
- private:
-  struct TrapKey {
-    TrapKey() : fnc(NULL), aux(NULL), safe(false) {}
-    TrapKey(TrapFnc f, const void* a, bool s) : fnc(f), aux(a), safe(s) {}
-    TrapFnc fnc;
-    const void* aux;
-    bool safe;
-    bool operator<(const TrapKey&) const;
-  };
-  typedef std::map<TrapKey, uint16_t> TrapIds;
-
-  // Our constructor is private. A shared global instance is created
-  // automatically as needed.
-  Trap();
-
-  // The destructor is unimplemented as destroying this object would
-  // break subsequent system calls that trigger a SIGSYS.
-  ~Trap() = delete;
-
-  static void SigSysAction(int nr, LinuxSigInfo* info, void* void_context);
-
-  // Make sure that SigSys is not inlined in order to get slightly better crash
-  // dumps.
-  void SigSys(int nr, LinuxSigInfo* info, ucontext_t* ctx)
-      __attribute__((noinline));
-  // We have a global singleton that handles all of our SIGSYS traps. This
-  // variable must never be deallocated after it has been set up initially, as
-  // there is no way to reset in-kernel BPF filters that generate SIGSYS
-  // events.
-  static Trap* global_trap_;
-
-  TrapIds trap_ids_;            // Maps from TrapKeys to numeric ids
-  TrapKey* trap_array_;         // Array of TrapKeys indexed by ids
-  size_t trap_array_size_;      // Currently used size of array
-  size_t trap_array_capacity_;  // Currently allocated capacity of array
-  bool has_unsafe_traps_;       // Whether unsafe traps have been enabled
-
-  // Copying and assigning is unimplemented. It doesn't make sense for a
-  // singleton.
-  DISALLOW_COPY_AND_ASSIGN(Trap);
-};
-
-}  // namespace sandbox
-
-#endif  // SANDBOX_LINUX_SECCOMP_BPF_TRAP_H__