Nuke NaCl SFI, part 1.

mojo/nacl/sfi/nacl_bindings_generator/mojo_syscall.cc.tmpl

-// 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.
-
-{{generator_warning}}
-
-#include "{{bindings_dir}}/mojo_syscall.h"
-
-#include <stdio.h>
-
-#include "{{bindings_dir}}/mojo_syscall_internal.h"
-#include "mojo/public/c/system/buffer.h"
-#include "mojo/public/c/system/data_pipe.h"
-#include "mojo/public/c/system/handle.h"
-#include "mojo/public/c/system/message_pipe.h"
-#include "mojo/public/c/system/result.h"
-#include "mojo/public/c/system/time.h"
-#include "mojo/public/platform/native/system_impl_private.h"
-#include "native_client/src/public/chrome_main.h"
-#include "native_client/src/public/nacl_app.h"
-#include "native_client/src/trusted/desc/nacl_desc_custom.h"
-
-MojoHandle g_mojo_handle = MOJO_HANDLE_INVALID;
-MojoSystemImpl g_mojo_system = nullptr;
-
-namespace {
-
-MojoResult _MojoGetInitialHandle(MojoHandle* handle) {
-  *handle = g_mojo_handle;
-  return MOJO_RESULT_OK;
-}
-
-void MojoDescDestroy(void* handle) {
-}
-
-ssize_t MojoDescSendMsg(void* handle,
-                        const struct NaClImcTypedMsgHdr* msg,
-                        int flags) {
-  struct NaClApp* nap = static_cast<struct NaClApp*>(handle);
-
-  if (msg->iov_length != 1 || msg->ndesc_length != 0) {
-    return -1;
-  }
-
-  uint32_t volatile* params = static_cast<uint32_t volatile*>(msg->iov[0].base);
-  size_t num_params = msg->iov[0].length / sizeof(*params);
-
-  if (num_params < 1) {
-    return -1;
-  }
-
-  uint32_t msg_type = params[0];
-  switch (msg_type) {
-{{body}}
-  }
-
-  return -1;
-}
-
-ssize_t MojoDescRecvMsg(void* handle,
-                        struct NaClImcTypedMsgHdr* msg,
-                        int flags) {
-  return -1;
-}
-
-struct NaClDesc* MakeMojoDesc(struct NaClApp* nap) {
-  struct NaClDescCustomFuncs funcs = NACL_DESC_CUSTOM_FUNCS_INITIALIZER;
-  funcs.Destroy = MojoDescDestroy;
-  funcs.SendMsg = MojoDescSendMsg;
-  funcs.RecvMsg = MojoDescRecvMsg;
-  return NaClDescMakeCustomDesc(nap, &funcs);
-}
-
-void MojoDisabledDescDestroy(void* handle) {
-}
-
-ssize_t MojoDisabledDescSendMsg(void* handle,
-                                const struct NaClImcTypedMsgHdr* msg,
-                                int flags) {
-  fprintf(stderr, "Mojo is not currently supported.");
-  abort();
-}
-
-ssize_t MojoDisabledDescRecvMsg(void* handle,
-                                struct NaClImcTypedMsgHdr* msg,
-                                int flags) {
-  fprintf(stderr, "Mojo is not currently supported.");
-  abort();
-}
-
-struct NaClDesc* MakeDisabledMojoDesc(struct NaClApp* nap) {
-  struct NaClDescCustomFuncs funcs = NACL_DESC_CUSTOM_FUNCS_INITIALIZER;
-  funcs.Destroy = MojoDisabledDescDestroy;
-  funcs.SendMsg = MojoDisabledDescSendMsg;
-  funcs.RecvMsg = MojoDisabledDescRecvMsg;
-  return NaClDescMakeCustomDesc(nap, &funcs);
-}
-
-} // namespace
-
-// The value for this FD must not conflict with uses inside Chromium. However,
-// mojo/nacl doesn't depend on any Chromium headers, so we can't use a #define
-// from there.
-#define NACL_MOJO_DESC (NACL_CHROME_DESC_BASE + 3)
-
-MojoResult InjectMojo(struct NaClApp* nap, MojoHandle handle) {
-  NaClAppSetDesc(nap, NACL_MOJO_DESC, MakeMojoDesc(nap));
-  g_mojo_system = MojoSystemImplCreateImpl();
-  return MojoSystemImplTransferHandle(MojoSystemImplGetDefaultImpl(), handle,
-                                      g_mojo_system, &g_mojo_handle);
-}
-
-void InjectDisabledMojo(struct NaClApp* nap) {
-  NaClAppSetDesc(nap, NACL_MOJO_DESC, MakeDisabledMojoDesc(nap));
-}