bpf_dsl: move more implementation details out of bpf_dsl.h

sandbox/linux/bpf_dsl/bpf_dsl.cc

 // Copyright 2014 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.
 
 #include "sandbox/linux/bpf_dsl/bpf_dsl.h"
 
 #include <errno.h>
 
 #include <limits>
 
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "sandbox/linux/bpf_dsl/bpf_dsl_impl.h"
 #include "sandbox/linux/bpf_dsl/policy_compiler.h"
 #include "sandbox/linux/seccomp-bpf/errorcode.h"
-#include "sandbox/linux/seccomp-bpf/syscall_iterator.h"
 
 namespace sandbox {
 namespace bpf_dsl {
 namespace {
 
 class AllowResultExprImpl : public internal::ResultExprImpl {
  public:
   AllowResultExprImpl() {}
 
   virtual ErrorCode Compile(PolicyCompiler* pc) const override {
@@ skipping 343 matching lines @@
     expr = ResultExpr(
         new const IfThenResultExprImpl(clause.first, clause.second, expr));
   }
   return expr;
 }
 
 ResultExpr SandboxBPFDSLPolicy::InvalidSyscall() const {
   return Error(ENOSYS);
 }
 
-ErrorCode SandboxBPFDSLPolicy::EvaluateSyscall(PolicyCompiler* pc,
-                                               int sysno) const {
-  return EvaluateSyscall(sysno)->Compile(pc);
-}
-
-ErrorCode SandboxBPFDSLPolicy::InvalidSyscall(PolicyCompiler* pc) const {
-  return InvalidSyscall()->Compile(pc);
-}
-
-bool SandboxBPFDSLPolicy::HasUnsafeTraps() const {
-  for (SyscallIterator iter(false); !iter.Done();) {
-    uint32_t sysnum = iter.Next();
-    if (SyscallIterator::IsValid(sysnum) &&
-        EvaluateSyscall(sysnum)->HasUnsafeTraps()) {
-      return true;
-    }
-  }
-  return InvalidSyscall()->HasUnsafeTraps();
-}
-
 ResultExpr SandboxBPFDSLPolicy::Trap(TrapRegistry::TrapFnc trap_func,
                                      const void* aux) {
   return bpf_dsl::Trap(trap_func, aux);
 }
 
 }  // namespace bpf_dsl
 }  // namespace sandbox
 
 template class scoped_refptr<const sandbox::bpf_dsl::internal::BoolExprImpl>;
 template class scoped_refptr<const sandbox::bpf_dsl::internal::ResultExprImpl>;