mojo/nacl/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 "mojo/nacl/mojo_syscall.h"

#include <stdio.h>

#include "mojo/nacl/mojo_syscall_internal.h"
#include "mojo/public/c/system/core.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"

namespace {

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);
}

} // namespace

#define NACL_MOJO_DESC (NACL_CHROME_DESC_BASE + 2)

void InjectMojo(struct NaClApp* nap) {
  NaClAppSetDesc(nap, NACL_MOJO_DESC, MakeMojoDesc(nap));
}