Remove dead file.
Change-Id: I70a37679a624f2ea2c2d6e1610ad8999c09e5262
This commit is contained in:
Elliott Hughes
parent
32e9163b2a
commit
2f38122a0f
1 changed files with 0 additions and 199 deletions
|
|
@ -1,199 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2014 The Android Open Source Project
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#include "sysdeps.h"
|
||||
|
||||
#define TRACE_TAG TRACE_ADB
|
||||
#include "adb.h"
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdarg.h>
|
||||
#include <sys/stat.h>
|
||||
#include <fcntl.h>
|
||||
#include <inttypes.h>
|
||||
|
||||
#include "cutils/properties.h"
|
||||
#include "ext4_sb.h"
|
||||
#include <fs_mgr.h>
|
||||
|
||||
#define FSTAB_PREFIX "/fstab."
|
||||
struct fstab *fstab;
|
||||
|
||||
__attribute__((__format__(printf, 2, 3))) __nonnull((2))
|
||||
static void write_console(int fd, const char* format, ...)
|
||||
{
|
||||
char buffer[256];
|
||||
va_list args;
|
||||
va_start (args, format);
|
||||
vsnprintf (buffer, sizeof(buffer), format, args);
|
||||
va_end (args);
|
||||
|
||||
adb_write(fd, buffer, strnlen(buffer, sizeof(buffer)));
|
||||
}
|
||||
|
||||
static int get_target_device_size(int fd, const char *blk_device,
|
||||
uint64_t *device_size)
|
||||
{
|
||||
int data_device;
|
||||
struct ext4_super_block sb;
|
||||
struct fs_info info;
|
||||
|
||||
info.len = 0; /* Only len is set to 0 to ask the device for real size. */
|
||||
|
||||
data_device = adb_open(blk_device, O_RDONLY | O_CLOEXEC);
|
||||
if (data_device < 0) {
|
||||
write_console(fd, "Error opening block device (%s)\n", strerror(errno));
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (lseek64(data_device, 1024, SEEK_SET) < 0) {
|
||||
write_console(fd, "Error seeking to superblock\n");
|
||||
adb_close(data_device);
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (adb_read(data_device, &sb, sizeof(sb)) != sizeof(sb)) {
|
||||
write_console(fd, "Error reading superblock\n");
|
||||
adb_close(data_device);
|
||||
return -1;
|
||||
}
|
||||
|
||||
ext4_parse_sb(&sb, &info);
|
||||
*device_size = info.len;
|
||||
|
||||
adb_close(data_device);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int disable_verity(int fd, const char *block_device,
|
||||
const char* mount_point)
|
||||
{
|
||||
uint32_t magic_number;
|
||||
const uint32_t voff = VERITY_METADATA_MAGIC_DISABLE;
|
||||
uint64_t device_length;
|
||||
int device;
|
||||
int retval = -1;
|
||||
|
||||
device = adb_open(block_device, O_RDWR | O_CLOEXEC);
|
||||
if (device == -1) {
|
||||
write_console(fd, "Could not open block device %s (%s).\n",
|
||||
block_device, strerror(errno));
|
||||
write_console(fd, "Maybe run adb remount?\n");
|
||||
goto errout;
|
||||
}
|
||||
|
||||
// find the start of the verity metadata
|
||||
if (get_target_device_size(fd, (char*)block_device, &device_length) < 0) {
|
||||
write_console(fd, "Could not get target device size.\n");
|
||||
goto errout;
|
||||
}
|
||||
|
||||
if (lseek64(device, device_length, SEEK_SET) < 0) {
|
||||
write_console(fd,
|
||||
"Could not seek to start of verity metadata block.\n");
|
||||
goto errout;
|
||||
}
|
||||
|
||||
// check the magic number
|
||||
if (adb_read(device, &magic_number, sizeof(magic_number))
|
||||
!= sizeof(magic_number)) {
|
||||
write_console(fd, "Couldn't read magic number!\n");
|
||||
goto errout;
|
||||
}
|
||||
|
||||
if (magic_number == VERITY_METADATA_MAGIC_DISABLE) {
|
||||
write_console(fd, "Verity already disabled on %s\n", mount_point);
|
||||
goto errout;
|
||||
}
|
||||
|
||||
if (magic_number != VERITY_METADATA_MAGIC_NUMBER) {
|
||||
write_console(fd,
|
||||
"Couldn't find verity metadata at offset %"PRIu64"!\n",
|
||||
device_length);
|
||||
goto errout;
|
||||
}
|
||||
|
||||
if (lseek64(device, device_length, SEEK_SET) < 0) {
|
||||
write_console(fd,
|
||||
"Could not seek to start of verity metadata block.\n");
|
||||
goto errout;
|
||||
}
|
||||
|
||||
if (adb_write(device, &voff, sizeof(voff)) != sizeof(voff)) {
|
||||
write_console(fd, "Could not set verity disabled flag on device %s\n",
|
||||
block_device);
|
||||
goto errout;
|
||||
}
|
||||
|
||||
write_console(fd, "Verity disabled on %s\n", mount_point);
|
||||
retval = 0;
|
||||
errout:
|
||||
if (device != -1)
|
||||
adb_close(device);
|
||||
return retval;
|
||||
}
|
||||
|
||||
void disable_verity_service(int fd, void* cookie)
|
||||
{
|
||||
#ifdef ALLOW_ADBD_DISABLE_VERITY
|
||||
char fstab_filename[PROPERTY_VALUE_MAX + sizeof(FSTAB_PREFIX)];
|
||||
char propbuf[PROPERTY_VALUE_MAX];
|
||||
int i;
|
||||
bool any_disabled = false;
|
||||
|
||||
property_get("ro.secure", propbuf, "0");
|
||||
if (strcmp(propbuf, "1")) {
|
||||
write_console(fd, "verity not enabled - ENG build\n");
|
||||
goto errout;
|
||||
}
|
||||
|
||||
property_get("ro.debuggable", propbuf, "0");
|
||||
if (strcmp(propbuf, "1")) {
|
||||
write_console(fd, "verity cannot be disabled - USER build\n");
|
||||
goto errout;
|
||||
}
|
||||
|
||||
property_get("ro.hardware", propbuf, "");
|
||||
snprintf(fstab_filename, sizeof(fstab_filename), FSTAB_PREFIX"%s", propbuf);
|
||||
|
||||
fstab = fs_mgr_read_fstab(fstab_filename);
|
||||
if (!fstab) {
|
||||
write_console(fd, "Failed to open %s\nMaybe run adb root?\n",
|
||||
fstab_filename);
|
||||
goto errout;
|
||||
}
|
||||
|
||||
/* Loop through entries looking for ones that vold manages */
|
||||
for (i = 0; i < fstab->num_entries; i++) {
|
||||
if(fs_mgr_is_verified(&fstab->recs[i])) {
|
||||
if (!disable_verity(fd, fstab->recs[i].blk_device,
|
||||
fstab->recs[i].mount_point)) {
|
||||
any_disabled = true;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (any_disabled) {
|
||||
write_console(fd,
|
||||
"Now reboot your device for settings to take effect\n");
|
||||
}
|
||||
#else
|
||||
write_console(fd, "disable-verity only works for userdebug builds\n");
|
||||
#endif
|
||||
|
||||
errout:
|
||||
adb_close(fd);
|
||||
}
|
||||
Loading…
Reference in a new issue