1 // Copyright 2013 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 #include "sandbox/win/src/service_resolver.h" 6 7 #include "base/win/pe_image.h" 8 #include "sandbox/win/src/internal_types.h" 9 #include "sandbox/win/src/sandbox_nt_util.h" 10 11 namespace sandbox { 12 13 NTSTATUS ServiceResolverThunk::ResolveInterceptor( 14 const void* interceptor_module, 15 const char* interceptor_name, 16 const void** address) { 17 // After all, we are using a locally mapped version of the exe, so the 18 // action is the same as for a target function. 19 return ResolveTarget(interceptor_module, interceptor_name, 20 const_cast<void**>(address)); 21 } 22 23 // In this case all the work is done from the parent, so resolve is 24 // just a simple GetProcAddress. 25 NTSTATUS ServiceResolverThunk::ResolveTarget(const void* module, 26 const char* function_name, 27 void** address) { 28 if (NULL == module) 29 return STATUS_UNSUCCESSFUL; 30 31 base::win::PEImage module_image(module); 32 *address = module_image.GetProcAddress(function_name); 33 34 if (NULL == *address) { 35 NOTREACHED_NT(); 36 return STATUS_UNSUCCESSFUL; 37 } 38 39 return STATUS_SUCCESS; 40 } 41 42 void ServiceResolverThunk::AllowLocalPatches() { 43 ntdll_base_ = ::GetModuleHandle(kNtdllName); 44 } 45 46 } // namespace sandbox 47
