diff options
Diffstat (limited to 'security/sandbox/chromium/sandbox/win/src/service_resolver.cc')
-rw-r--r-- | security/sandbox/chromium/sandbox/win/src/service_resolver.cc | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/security/sandbox/chromium/sandbox/win/src/service_resolver.cc b/security/sandbox/chromium/sandbox/win/src/service_resolver.cc new file mode 100644 index 0000000000..f26322dd63 --- /dev/null +++ b/security/sandbox/chromium/sandbox/win/src/service_resolver.cc @@ -0,0 +1,47 @@ +// Copyright 2013 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/win/src/service_resolver.h" + +#include "base/win/pe_image.h" +#include "sandbox/win/src/internal_types.h" +#include "sandbox/win/src/sandbox_nt_util.h" + +namespace sandbox { + +NTSTATUS ServiceResolverThunk::ResolveInterceptor( + const void* interceptor_module, + const char* interceptor_name, + const void** address) { + // After all, we are using a locally mapped version of the exe, so the + // action is the same as for a target function. + return ResolveTarget(interceptor_module, interceptor_name, + const_cast<void**>(address)); +} + +// In this case all the work is done from the parent, so resolve is +// just a simple GetProcAddress. +NTSTATUS ServiceResolverThunk::ResolveTarget(const void* module, + const char* function_name, + void** address) { + if (!module) + return STATUS_UNSUCCESSFUL; + + base::win::PEImage module_image(module); + *address = + reinterpret_cast<void*>(module_image.GetProcAddress(function_name)); + + if (!*address) { + NOTREACHED_NT(); + return STATUS_UNSUCCESSFUL; + } + + return STATUS_SUCCESS; +} + +void ServiceResolverThunk::AllowLocalPatches() { + ntdll_base_ = ::GetModuleHandle(kNtdllName); +} + +} // namespace sandbox |