1 files changed, 0 insertions, 251 deletions
diff --git a/toolkit/mozapps/update/updater/automounter_gonk.cpp b/toolkit/mozapps/update/updater/automounter_gonk.cpp
deleted file mode 100644
index 3dff2a133..000000000
--- a/toolkit/mozapps/update/updater/automounter_gonk.cpp
+++ /dev/null
@@ -1,251 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include <android/log.h>
-#include <cutils/android_reboot.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <sys/mount.h>
-#include <sys/reboot.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <unistd.h>
-
-#include "automounter_gonk.h"
-#include "updatedefines.h"
-#include "updatelogging.h"
-
-#define LOG_TAG "GonkAutoMounter"
-
-#define GONK_LOG(level, format, ...) \
-  LOG((LOG_TAG ": " format "\n", ##__VA_ARGS__)); \
-  __android_log_print(level, LOG_TAG, format, ##__VA_ARGS__)
-
-#define LOGI(format, ...) GONK_LOG(ANDROID_LOG_INFO, format, ##__VA_ARGS__)
-#define LOGE(format, ...) GONK_LOG(ANDROID_LOG_ERROR, format, ##__VA_ARGS__)
-
-const char *kGonkMountsPath = "/proc/mounts";
-const char *kGonkSystemPath = "/system";
-
-GonkAutoMounter::GonkAutoMounter() : mDevice(nullptr), mAccess(Unknown)
-{
-  if (!RemountSystem(ReadWrite)) {
-    LOGE("Could not remount %s as read-write.", kGonkSystemPath);
-  }
-}
-
-GonkAutoMounter::~GonkAutoMounter()
-{
-  bool result = RemountSystem(ReadOnly);
-  free(mDevice);
-
-  if (!result) {
-    // Don't take any chances when remounting as read-only fails, just reboot.
-    Reboot();
-  }
-}
-
-void
-GonkAutoMounter::Reboot()
-{
-  // The android_reboot wrapper provides more safety, doing fancier read-only
-  // remounting and attempting to sync() the filesystem first. If this fails
-  // our only hope is to force a reboot directly without these protections.
-  // For more, see system/core/libcutils/android_reboot.c
-  LOGE("Could not remount %s as read-only, forcing a system reboot.",
-       kGonkSystemPath);
-  LogFlush();
-
-  if (android_reboot(ANDROID_RB_RESTART, 0, nullptr) != 0) {
-    LOGE("Safe system reboot failed, attempting to force");
-    LogFlush();
-
-    if (reboot(RB_AUTOBOOT) != 0) {
-      LOGE("CRITICAL: Failed to force restart");
-    }
-  }
-}
-
-static const char *
-MountAccessToString(MountAccess access)
-{
-  switch (access) {
-    case ReadOnly: return "read-only";
-    case ReadWrite: return "read-write";
-    default: return "unknown";
-  }
-}
-
-bool
-GonkAutoMounter::RemountSystem(MountAccess access)
-{
-  if (!UpdateMountStatus()) {
-    return false;
-  }
-
-  if (mAccess == access) {
-    return true;
-  }
-
-  unsigned long flags = MS_REMOUNT;
-  if (access == ReadOnly) {
-    flags |= MS_RDONLY;
-    // Give the system a chance to flush file buffers
-    sync();
-  }
-
-  if (!MountSystem(flags)) {
-    return false;
-  }
-
-  // Check status again to verify /system has been properly remounted
-  if (!UpdateMountStatus()) {
-    return false;
-  }
-
-  if (mAccess != access) {
-    LOGE("Updated mount status %s should be %s",
-         MountAccessToString(mAccess),
-         MountAccessToString(access));
-    return false;
-  }
-
-  return true;
-}
-
-bool
-GonkAutoMounter::UpdateMountStatus()
-{
-  FILE *mountsFile = NS_tfopen(kGonkMountsPath, "r");
-
-  if (mountsFile == nullptr) {
-    LOGE("Error opening %s: %s", kGonkMountsPath, strerror(errno));
-    return false;
-  }
-
-  // /proc/mounts returns a 0 size from fstat, so we use the same
-  // pre-allocated buffer size that ADB does here
-  const int mountsMaxSize = 4096;
-  char mountData[mountsMaxSize];
-  size_t read = fread(mountData, 1, mountsMaxSize - 1, mountsFile);
-  mountData[read + 1] = '\0';
-
-  if (ferror(mountsFile)) {
-    LOGE("Error reading %s, %s", kGonkMountsPath, strerror(errno));
-    fclose(mountsFile);
-    return false;
-  }
-
-  char *token, *tokenContext;
-  bool foundSystem = false;
-
-  for (token = strtok_r(mountData, "\n", &tokenContext);
-       token;
-       token = strtok_r(nullptr, "\n", &tokenContext))
-  {
-    if (ProcessMount(token)) {
-      foundSystem = true;
-      break;
-    }
-  }
-
-  fclose(mountsFile);
-
-  if (!foundSystem) {
-    LOGE("Couldn't find %s mount in %s", kGonkSystemPath, kGonkMountsPath);
-  }
-  return foundSystem;
-}
-
-bool
-GonkAutoMounter::ProcessMount(const char *mount)
-{
-  const int strSize = 256;
-  char mountDev[strSize];
-  char mountDir[strSize];
-  char mountAccess[strSize];
-
-  int rv = sscanf(mount, "%255s %255s %*s %255s %*d %*d\n",
-                  mountDev, mountDir, mountAccess);
-  mountDev[strSize - 1] = '\0';
-  mountDir[strSize - 1] = '\0';
-  mountAccess[strSize - 1] = '\0';
-
-  if (rv != 3) {
-    return false;
-  }
-
-  if (strcmp(kGonkSystemPath, mountDir) != 0) {
-    return false;
-  }
-
-  free(mDevice);
-  mDevice = strdup(mountDev);
-  mAccess = Unknown;
-
-  char *option, *optionContext;
-  for (option = strtok_r(mountAccess, ",", &optionContext);
-       option;
-       option = strtok_r(nullptr, ",", &optionContext))
-  {
-    if (strcmp("ro", option) == 0) {
-      mAccess = ReadOnly;
-      break;
-    } else if (strcmp("rw", option) == 0) {
-      mAccess = ReadWrite;
-      break;
-    }
-  }
-
-  return true;
-}
-
-/*
- * Mark the given block device as read-write or read-only, using the BLKROSET
- * ioctl.
- */
-static void SetBlockReadWriteStatus(const char *blockdev, bool setReadOnly) {
-  int fd;
-  int roMode = setReadOnly ? 1 : 0;
-
-  fd = open(blockdev, O_RDONLY);
-  if (fd < 0) {
-    return;
-  }
-
-  if (ioctl(fd, BLKROSET, &roMode) == -1) {
-    LOGE("Error setting read-only mode on %s to %s: %s", blockdev,
-         setReadOnly ? "true": "false", strerror(errno));
-  }
-  close(fd);
-}
-
-
-bool
-GonkAutoMounter::MountSystem(unsigned long flags)
-{
-  if (!mDevice) {
-    LOGE("No device was found for %s", kGonkSystemPath);
-    return false;
-  }
-
-  // Without setting the block device ro mode to false, we get a permission
-  // denied error while trying to remount it in read-write.
-  SetBlockReadWriteStatus(mDevice, (flags & MS_RDONLY));
-
-  const char *readOnly = flags & MS_RDONLY ? "read-only" : "read-write";
-  int result = mount(mDevice, kGonkSystemPath, "none", flags, nullptr);
-
-  if (result != 0) {
-    LOGE("Error mounting %s as %s: %s", kGonkSystemPath, readOnly,
-         strerror(errno));
-    return false;
-  }
-
-  LOGI("Mounted %s partition as %s", kGonkSystemPath, readOnly);
-  return true;
-}