sandbox: extract SetuidSandboxHost code from SetuidSandboxClient

components/nacl/zygote/nacl_fork_delegate_linux.cc

 // 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.
 
 #include "components/nacl/zygote/nacl_fork_delegate_linux.h"
 
 #include <signal.h>
 #include <stdlib.h>
 #include <sys/resource.h>
 #include <sys/socket.h>
@@ skipping 17 matching lines @@
 #include "base/process/launch.h"
 #include "base/strings/string_split.h"
 #include "base/third_party/dynamic_annotations/dynamic_annotations.h"
 #include "build/build_config.h"
 #include "components/nacl/common/nacl_nonsfi_util.h"
 #include "components/nacl/common/nacl_paths.h"
 #include "components/nacl/common/nacl_switches.h"
 #include "components/nacl/loader/nacl_helper_linux.h"
 #include "content/public/common/content_descriptors.h"
 #include "content/public/common/content_switches.h"
-#include "sandbox/linux/suid/client/setuid_sandbox_client.h"
+#include "sandbox/linux/suid/client/setuid_sandbox_host.h"
 #include "sandbox/linux/suid/common/sandbox.h"
 
 namespace {
 
 // Note these need to match up with their counterparts in nacl_helper_linux.c
 // and nacl_helper_bootstrap_linux.c.
 const char kNaClHelperReservedAtZero[] =
     "--reserved_at_zero=0xXXXXXXXXXXXXXXXX";
 const char kNaClHelperRDebug[] = "--r_debug=0xXXXXXXXXXXXXXXXX";
 
@@ skipping 90 matching lines @@
 
 void NaClForkDelegate::Init(const int sandboxdesc,
                             const bool enable_layer1_sandbox) {
   VLOG(1) << "NaClForkDelegate::Init()";
 
   // Only launch the non-SFI helper process if non-SFI mode is enabled.
   if (nonsfi_mode_ && !IsNonSFIModeEnabled()) {
     return;
   }
 
-  scoped_ptr<sandbox::SetuidSandboxClient> setuid_sandbox_client(
-      sandbox::SetuidSandboxClient::Create());
+  scoped_ptr<sandbox::SetuidSandboxHost> setuid_sandbox_host(
+      sandbox::SetuidSandboxHost::Create());
 
   // For communications between the NaCl loader process and
   // the SUID sandbox.
   int nacl_sandbox_descriptor =
       base::GlobalDescriptors::kBaseDescriptor + kSandboxIPCChannel;
   // Confirm a hard-wired assumption.
   DCHECK_EQ(sandboxdesc, nacl_sandbox_descriptor);
 
   int fds[2];
   PCHECK(0 == socketpair(PF_UNIX, SOCK_SEQPACKET, 0, fds));
@@ skipping 75 matching lines @@
                             bootstrap_prepend.end());
     }
 
     base::LaunchOptions options;
 
     base::ScopedFD dummy_fd;
     if (enable_layer1_sandbox) {
       // NaCl needs to keep tight control of the cmd_line, so prepend the
       // setuid sandbox wrapper manually.
       base::FilePath sandbox_path =
-          setuid_sandbox_client->GetSandboxBinaryPath();
+          setuid_sandbox_host->GetSandboxBinaryPath();
       argv_to_launch.insert(argv_to_launch.begin(), sandbox_path.value());
-      setuid_sandbox_client->SetupLaunchOptions(
+      setuid_sandbox_host->SetupLaunchOptions(
           &options, &fds_to_map, &dummy_fd);
-      setuid_sandbox_client->SetupLaunchEnvironment();
+      setuid_sandbox_host->SetupLaunchEnvironment();
     }
 
     options.fds_to_remap = &fds_to_map;
 
     // The NaCl processes spawned may need to exceed the ambient soft limit
     // on RLIMIT_AS to allocate the untrusted address space and its guard
     // regions.  The nacl_helper itself cannot just raise its own limit,
     // because the existing limit may prevent the initial exec of
     // nacl_helper_bootstrap from succeeding, with its large address space
     // reservation.
@@ skipping 176 matching lines @@
   pass_through_vars.push_back(kNaClVerbosity);
   pass_through_vars.push_back(sandbox::kSandboxEnvironmentApiRequest);
   for (size_t i = 0; i < pass_through_vars.size(); ++i) {
     std::string temp;
     if (env->GetVar(pass_through_vars[i].c_str(), &temp))
       options->environ[pass_through_vars[i]] = temp;
   }
 }
 
 }  // namespace nacl