Google Git
Sign in
fuchsia / fuchsia / 74c49f4f4158dea00345472508ec88d07ec29d0e / . / zircon / system / utest / fvm / fvm.cpp
blob: 78ee1aff6e0f08030a1e569d797965cde32a215b [file] [log] [blame]
// Copyright 2017 The Fuchsia 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 <climits>
#include <errno.h>
#include <fcntl.h>
#include <limits>
#include <new>
#include <poll.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <threads.h>
#include <time.h>
#include <unistd.h>
#include <utility>
#include <utime.h>
#include <blobfs/format.h>
#include <block-client/client.h>
#include <fbl/algorithm.h>
#include <fbl/auto_lock.h>
#include <fbl/function.h>
#include <fbl/ref_counted.h>
#include <fbl/ref_ptr.h>
#include <fbl/unique_fd.h>
#include <fbl/unique_ptr.h>
#include <fbl/vector.h>
#include <fs-management/fvm.h>
#include <fs-management/mount.h>
#include <fuchsia/device/c/fidl.h>
#include <fuchsia/hardware/block/c/fidl.h>
#include <fuchsia/hardware/block/partition/c/fidl.h>
#include <fuchsia/hardware/block/volume/c/fidl.h>
#include <fuchsia/io/c/fidl.h>
#include <fvm/format.h>
#include <fvm/fvm-check.h>
#include <lib/async-loop/cpp/loop.h>
#include <lib/fdio/directory.h>
#include <lib/fdio/unsafe.h>
#include <lib/fzl/fdio.h>
#include <lib/memfs/memfs.h>
#include <lib/zx/channel.h>
#include <lib/zx/fifo.h>
#include <lib/zx/vmo.h>
#include <minfs/format.h>
#include <ramdevice-client/ramdisk.h>
#include <zircon/device/block.h>
#include <zircon/device/vfs.h>
#include <zircon/syscalls.h>
#include <zircon/thread_annotations.h>
#include <unittest/unittest.h>
#define FVM_DRIVER_LIB "/boot/driver/fvm.so"
#define STRLEN(s) (sizeof(s) / sizeof((s)[0]))
namespace {
/////////////////////// Helper functions for creating FVM:
using filesystem_info_t = fuchsia_io_FilesystemInfo;
using volume_info_t = fuchsia_hardware_block_volume_VolumeInfo;
const char kTmpfsPath[] = "/fvm-tmp";
const char kMountPath[] = "/fvm-tmp/minfs_test_mountpath";
static bool use_real_disk = false;
static ramdisk_client_t* test_ramdisk = nullptr;
static char test_disk_path[PATH_MAX];
static uint64_t test_block_size;
static uint64_t test_block_count;
int StartFVMTest(uint64_t blk_size, uint64_t initial_blk_count, uint64_t max_blk_count,
uint64_t slice_size, char* disk_path_out, char* fvm_driver_out) {
zx::channel fvm_channel;
zx_status_t status, call_status;
auto cleanup = fbl::MakeAutoCall([disk_path_out]() {
if (!use_real_disk && disk_path_out[0]) {
ramdisk_destroy(test_ramdisk);
}
});
fbl::unique_fd fd;
disk_path_out[0] = 0;
if (!use_real_disk) {
if (ramdisk_create(blk_size, initial_blk_count, &test_ramdisk)) {
fprintf(stderr, "fvm: Could not create ramdisk\n");
return -1;
}
strlcpy(disk_path_out, ramdisk_get_path(test_ramdisk), PATH_MAX);
} else {
strlcpy(disk_path_out, test_disk_path, PATH_MAX);
}
fd.reset(open(disk_path_out, O_RDWR));
if (!fd) {
fprintf(stderr, "fvm: Could not open ramdisk\n");
return -1;
}
if (fvm_init_preallocated(fd.get(), initial_blk_count * blk_size, max_blk_count * blk_size,
slice_size) != ZX_OK) {
fprintf(stderr, "fvm: Could not initialize fvm\n");
return -1;
}
if (fdio_get_service_handle(fd.get(), fvm_channel.reset_and_get_address()) != ZX_OK) {
fprintf(stderr, "fvm: Could not convert fd to channel\n");
return -1;
}
status = fuchsia_device_ControllerBind(fvm_channel.get(), FVM_DRIVER_LIB,
STRLEN(FVM_DRIVER_LIB), &call_status);
if (status == ZX_OK) {
status = call_status;
}
if (status != ZX_OK) {
fprintf(stderr, "fvm: Error binding to fvm driver\n");
return -1;
}
fvm_channel.reset();
char path[PATH_MAX];
snprintf(path, sizeof(path), "%s/fvm", disk_path_out);
if (wait_for_device(path, ZX_SEC(3)) != ZX_OK) {
fprintf(stderr, "fvm: Error waiting for fvm driver to bind\n");
return -1;
}
// TODO(security): SEC-70. This may overflow |fvm_driver_out|.
strcpy(fvm_driver_out, path);
cleanup.cancel();
return 0;
}
int StartFVMTest(uint64_t blk_size, uint64_t blk_count, uint64_t slice_size, char* disk_path_out,
char* fvm_driver_out) {
return StartFVMTest(blk_size, blk_count, blk_count, slice_size, disk_path_out, fvm_driver_out);
}
typedef struct {
const char* name;
size_t number;
} partition_entry_t;
fbl::unique_fd FVMRebind(fbl::unique_fd fvm_fd, char* disk_path, const partition_entry_t* entries,
size_t entry_count) {
if (use_real_disk) {
{
fbl::unique_fd disk_fd(open(disk_path, O_RDWR));
if (!disk_fd) {
fprintf(stderr, "fvm rebind: Could not open disk\n");
return fbl::unique_fd();
}
fzl::FdioCaller disk_client(std::move(disk_fd));
zx_status_t status;
if ((fuchsia_hardware_block_BlockRebindDevice(disk_client.borrow_channel(), &status) !=
ZX_OK) ||
status != ZX_OK) {
fprintf(stderr, "fvm rebind: Rebind hack failed\n");
return fbl::unique_fd();
}
}
// Wait for the disk to rebind to a block driver
if (wait_for_device(disk_path, ZX_SEC(3)) != ZX_OK) {
fprintf(stderr, "fvm rebind: Block driver did not rebind to disk\n");
return fbl::unique_fd();
}
zx::channel disk_dev, disk_dev_remote;
if (zx::channel::create(0, &disk_dev, &disk_dev_remote) != ZX_OK) {
fprintf(stderr, "fvm rebind: Could not create channel\n");
return fbl::unique_fd();
}
if (fdio_service_connect(disk_path, disk_dev_remote.release()) != ZX_OK) {
fprintf(stderr, "fvm rebind: Could not connect to disk\n");
return fbl::unique_fd();
}
zx_status_t call_status;
zx_status_t status = fuchsia_device_ControllerBind(disk_dev.get(), FVM_DRIVER_LIB,
STRLEN(FVM_DRIVER_LIB), &call_status);
if (status == ZX_OK) {
status = call_status;
}
if (status != ZX_OK) {
fprintf(stderr, "fvm rebind: Could not bind fvm driver\n");
return fbl::unique_fd();
}
} else {
if (ramdisk_rebind(test_ramdisk) != ZX_OK) {
fprintf(stderr, "fvm rebind: Could not rebind ramdisk\n");
return fbl::unique_fd();
}
fzl::UnownedFdioCaller disk_caller(ramdisk_get_block_fd(test_ramdisk));
zx_status_t call_status;
zx_status_t status = fuchsia_device_ControllerBind(
disk_caller.borrow_channel(), FVM_DRIVER_LIB, STRLEN(FVM_DRIVER_LIB), &call_status);
if (status == ZX_OK) {
status = call_status;
}
if (status != ZX_OK) {
fprintf(stderr, "fvm rebind: Could not bind fvm driver\n");
return fbl::unique_fd();
}
}
char path[PATH_MAX];
snprintf(path, sizeof(path), "%s/fvm", disk_path);
if (wait_for_device(path, ZX_SEC(3)) != ZX_OK) {
fprintf(stderr, "fvm rebind: Error waiting for fvm driver to bind\n");
return fbl::unique_fd();
}
for (size_t i = 0; i < entry_count; i++) {
snprintf(path, sizeof(path), "%s/fvm/%s-p-%zu/block", disk_path, entries[i].name,
entries[i].number);
if (wait_for_device(path, ZX_SEC(3)) != ZX_OK) {
fprintf(stderr, " Failed to wait for %s\n", path);
return fbl::unique_fd();
}
}
snprintf(path, sizeof(path), "%s/fvm", disk_path);
fvm_fd.reset(open(path, O_RDWR));
if (!fvm_fd) {
fprintf(stderr, "fvm rebind: Failed to open fvm\n");
return fbl::unique_fd();
}
return fvm_fd;
}
bool FVMCheckSliceSize(const char* fvm_path, size_t expected_slice_size) {
BEGIN_HELPER;
fbl::unique_fd fd(open(fvm_path, O_RDWR));
ASSERT_TRUE(fd, "Failed to open fvm driver\n");
volume_info_t volume_info;
ASSERT_EQ(fvm_query(fd.get(), &volume_info), ZX_OK, "Failed to query fvm\n");
ASSERT_EQ(expected_slice_size, volume_info.slice_size, "Unexpected slice size\n");
END_HELPER;
}
bool FVMCheckAllocatedCount(int fd, size_t expected_allocated, size_t expected_total) {
BEGIN_HELPER;
volume_info_t volume_info;
ASSERT_EQ(fvm_query(fd, &volume_info), ZX_OK);
ASSERT_EQ(volume_info.pslice_total_count, expected_total);
ASSERT_EQ(volume_info.pslice_allocated_count, expected_allocated);
END_HELPER;
}
enum class ValidationResult {
Valid,
Corrupted,
};
bool ValidateFVM(const char* device_path, ValidationResult result = ValidationResult::Valid) {
BEGIN_HELPER;
fbl::unique_fd fd(open(device_path, O_RDONLY));
ASSERT_TRUE(fd);
fzl::UnownedFdioCaller disk_caller(fd.get());
fuchsia_hardware_block_BlockInfo block_info;
zx_status_t status;
ASSERT_EQ(
fuchsia_hardware_block_BlockGetInfo(disk_caller.borrow_channel(), &status, &block_info),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
fvm::Checker checker(std::move(fd), block_info.block_size, true);
switch (result) {
case ValidationResult::Valid:
ASSERT_TRUE(checker.Validate());
break;
default:
ASSERT_FALSE(checker.Validate());
}
END_HELPER;
}
// Unbind FVM driver and removes the backing ramdisk device, if one exists.
int EndFVMTest(const char* device_path) {
if (!use_real_disk) {
return ramdisk_destroy(test_ramdisk);
} else {
return fvm_destroy(device_path);
}
}
/////////////////////// Helper functions, definitions
constexpr uint8_t kTestUniqueGUID[] = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f};
constexpr uint8_t kTestUniqueGUID2[] = {0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f};
// Intentionally avoid aligning these GUIDs with
// the actual system GUIDs; otherwise, limited versions
// of Fuchsia may attempt to actually mount these
// partitions automatically.
// clang-format off
#define GUID_TEST_DATA_VALUE \
{ \
0xAA, 0xFF, 0xBB, 0x00, 0x33, 0x44, 0x88, 0x99, \
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, \
}
#define GUID_TEST_BLOB_VALUE \
{ \
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, \
0xAA, 0xFF, 0xBB, 0x00, 0x33, 0x44, 0x88, 0x99, \
}
#define GUID_TEST_SYS_VALUE \
{ \
0xEE, 0xFF, 0xBB, 0x00, 0x33, 0x44, 0x88, 0x99, \
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, \
}
// clang-format on
constexpr char kTestPartName1[] = "data";
constexpr uint8_t kTestPartGUIDData[] = {0xAA, 0xFF, 0xBB, 0x00, 0x33, 0x44, 0x88, 0x99,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17};
constexpr char kTestPartName2[] = "blob";
constexpr uint8_t kTestPartGUIDBlob[] = GUID_TEST_BLOB_VALUE;
constexpr char kTestPartName3[] = "system";
constexpr uint8_t kTestPartGUIDSystem[] = GUID_TEST_SYS_VALUE;
class VmoBuf;
class VmoClient : public fbl::RefCounted<VmoClient> {
public:
static bool Create(int fd, fbl::RefPtr<VmoClient>* out);
~VmoClient();
bool CheckWrite(VmoBuf* vbuf, size_t buf_off, size_t dev_off, size_t len);
bool CheckRead(VmoBuf* vbuf, size_t buf_off, size_t dev_off, size_t len);
bool Transaction(block_fifo_request_t* requests, size_t count) {
BEGIN_HELPER;
ASSERT_EQ(block_fifo_txn(client_, &requests[0], count), ZX_OK);
END_HELPER;
}
int fd() const { return fd_; }
groupid_t group() { return 0; }
private:
int fd_;
fuchsia_hardware_block_BlockInfo info_;
fifo_client_t* client_;
};
class VmoBuf {
public:
static bool Create(fbl::RefPtr<VmoClient> client, size_t size, fbl::unique_ptr<VmoBuf>* out) {
BEGIN_HELPER;
fbl::unique_ptr<uint8_t[]> buf(new uint8_t[size]);
zx::vmo vmo;
ASSERT_EQ(zx::vmo::create(size, 0, &vmo), ZX_OK);
zx::vmo xfer_vmo;
ASSERT_EQ(vmo.duplicate(ZX_RIGHT_SAME_RIGHTS, &xfer_vmo), ZX_OK);
fzl::UnownedFdioCaller disk_connection(client->fd());
zx::unowned_channel channel(disk_connection.borrow_channel());
fuchsia_hardware_block_VmoID vmoid;
zx_status_t status;
ASSERT_EQ(fuchsia_hardware_block_BlockAttachVmo(channel->get(), xfer_vmo.release(), &status,
&vmoid),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
fbl::unique_ptr<VmoBuf> vb(
new VmoBuf(std::move(client), std::move(vmo), std::move(buf), vmoid));
*out = std::move(vb);
END_HELPER;
}
~VmoBuf() {
if (vmo_.is_valid()) {
block_fifo_request_t request;
request.group = client_->group();
request.vmoid = vmoid_.id;
request.opcode = BLOCKIO_CLOSE_VMO;
client_->Transaction(&request, 1);
}
}
private:
friend VmoClient;
VmoBuf(fbl::RefPtr<VmoClient> client, zx::vmo vmo, fbl::unique_ptr<uint8_t[]> buf,
fuchsia_hardware_block_VmoID vmoid)
: client_(std::move(client)), vmo_(std::move(vmo)), buf_(std::move(buf)), vmoid_(vmoid) {}
fbl::RefPtr<VmoClient> client_;
zx::vmo vmo_;
fbl::unique_ptr<uint8_t[]> buf_;
fuchsia_hardware_block_VmoID vmoid_;
};
bool VmoClient::Create(int fd, fbl::RefPtr<VmoClient>* out) {
BEGIN_HELPER;
fbl::RefPtr<VmoClient> vc = fbl::AdoptRef(new VmoClient());
fzl::UnownedFdioCaller disk_connection(fd);
zx::unowned_channel channel(disk_connection.borrow_channel());
zx_status_t status;
zx::fifo fifo;
ASSERT_EQ(
fuchsia_hardware_block_BlockGetFifo(channel->get(), &status, fifo.reset_and_get_address()),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(fuchsia_hardware_block_BlockGetInfo(channel->get(), &status, &vc->info_), ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(block_fifo_create_client(fifo.release(), &vc->client_), ZX_OK);
vc->fd_ = fd;
*out = std::move(vc);
END_HELPER;
}
VmoClient::~VmoClient() {
fzl::UnownedFdioCaller disk_connection(fd());
zx_status_t status;
fuchsia_hardware_block_BlockCloseFifo(disk_connection.borrow_channel(), &status);
block_fifo_release_client(client_);
}
bool VmoClient::CheckWrite(VmoBuf* vbuf, size_t buf_off, size_t dev_off, size_t len) {
BEGIN_HELPER;
// Write to the client-side buffer
for (size_t i = 0; i < len; i++)
vbuf->buf_[i + buf_off] = static_cast<uint8_t>(rand());
// Write to the registered VMO
ASSERT_EQ(vbuf->vmo_.write(&vbuf->buf_[buf_off], buf_off, len), ZX_OK);
// Write to the block device
block_fifo_request_t request;
request.group = group();
request.vmoid = vbuf->vmoid_.id;
request.opcode = BLOCKIO_WRITE;
ASSERT_EQ(len % info_.block_size, 0);
ASSERT_EQ(buf_off % info_.block_size, 0);
ASSERT_EQ(dev_off % info_.block_size, 0);
request.length = static_cast<uint32_t>(len / info_.block_size);
request.vmo_offset = buf_off / info_.block_size;
request.dev_offset = dev_off / info_.block_size;
ASSERT_TRUE(Transaction(&request, 1));
END_HELPER;
}
bool VmoClient::CheckRead(VmoBuf* vbuf, size_t buf_off, size_t dev_off, size_t len) {
BEGIN_HELPER;
// Create a comparison buffer
fbl::AllocChecker ac;
fbl::unique_ptr<uint8_t[]> out(new (&ac) uint8_t[len]);
ASSERT_TRUE(ac.check());
memset(out.get(), 0, len);
// Read from the block device
block_fifo_request_t request;
request.group = group();
request.vmoid = vbuf->vmoid_.id;
request.opcode = BLOCKIO_READ;
ASSERT_EQ(len % info_.block_size, 0);
ASSERT_EQ(buf_off % info_.block_size, 0);
ASSERT_EQ(dev_off % info_.block_size, 0);
request.length = static_cast<uint32_t>(len / info_.block_size);
request.vmo_offset = buf_off / info_.block_size;
request.dev_offset = dev_off / info_.block_size;
ASSERT_TRUE(Transaction(&request, 1));
// Read from the registered VMO
ASSERT_EQ(vbuf->vmo_.read(out.get(), buf_off, len), ZX_OK);
ASSERT_EQ(memcmp(&vbuf->buf_[buf_off], out.get(), len), 0);
END_HELPER;
}
bool CheckWrite(int fd, size_t off, size_t len, uint8_t* buf) {
BEGIN_HELPER;
for (size_t i = 0; i < len; i++) {
buf[i] = static_cast<uint8_t>(rand());
}
ASSERT_EQ(lseek(fd, off, SEEK_SET), static_cast<ssize_t>(off));
ASSERT_EQ(write(fd, buf, len), static_cast<ssize_t>(len));
END_HELPER;
}
bool CheckRead(int fd, size_t off, size_t len, const uint8_t* in) {
BEGIN_HELPER;
fbl::AllocChecker ac;
fbl::unique_ptr<uint8_t[]> out(new (&ac) uint8_t[len]);
ASSERT_TRUE(ac.check());
memset(out.get(), 0, len);
ASSERT_EQ(lseek(fd, off, SEEK_SET), static_cast<ssize_t>(off));
ASSERT_EQ(read(fd, out.get(), len), static_cast<ssize_t>(len));
ASSERT_EQ(memcmp(in, out.get(), len), 0);
END_HELPER;
}
bool CheckWriteColor(int fd, size_t off, size_t len, uint8_t color) {
BEGIN_HELPER;
fbl::AllocChecker ac;
fbl::unique_ptr<uint8_t[]> buf(new (&ac) uint8_t[len]);
ASSERT_TRUE(ac.check());
memset(buf.get(), color, len);
ASSERT_EQ(lseek(fd, off, SEEK_SET), static_cast<ssize_t>(off));
ASSERT_EQ(write(fd, buf.get(), len), static_cast<ssize_t>(len));
END_HELPER;
}
bool CheckReadColor(int fd, size_t off, size_t len, uint8_t color) {
BEGIN_HELPER;
fbl::AllocChecker ac;
fbl::unique_ptr<uint8_t[]> buf(new (&ac) uint8_t[len]);
ASSERT_TRUE(ac.check());
ASSERT_EQ(lseek(fd, off, SEEK_SET), static_cast<ssize_t>(off));
ASSERT_EQ(read(fd, buf.get(), len), static_cast<ssize_t>(len));
for (size_t i = 0; i < len; i++) {
ASSERT_EQ(buf[i], color);
}
END_HELPER;
}
bool CheckWriteReadBlock(int fd, size_t block, size_t count) {
BEGIN_HELPER;
fzl::UnownedFdioCaller disk_connection(fd);
zx_status_t status;
fuchsia_hardware_block_BlockInfo block_info;
ASSERT_EQ(
fuchsia_hardware_block_BlockGetInfo(disk_connection.borrow_channel(), &status, &block_info),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
size_t len = block_info.block_size * count;
size_t off = block_info.block_size * block;
fbl::unique_ptr<uint8_t[]> in(new uint8_t[len]);
ASSERT_TRUE(CheckWrite(fd, off, len, in.get()));
ASSERT_TRUE(CheckRead(fd, off, len, in.get()));
END_HELPER;
}
bool CheckNoAccessBlock(int fd, size_t block, size_t count) {
BEGIN_HELPER;
fzl::UnownedFdioCaller disk_connection(fd);
zx_status_t status;
fuchsia_hardware_block_BlockInfo block_info;
ASSERT_EQ(
fuchsia_hardware_block_BlockGetInfo(disk_connection.borrow_channel(), &status, &block_info),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
fbl::unique_ptr<uint8_t[]> buf(new uint8_t[block_info.block_size * count]);
size_t len = block_info.block_size * count;
size_t off = block_info.block_size * block;
for (size_t i = 0; i < len; i++)
buf[i] = static_cast<uint8_t>(rand());
ASSERT_EQ(lseek(fd, off, SEEK_SET), static_cast<ssize_t>(off));
ASSERT_EQ(write(fd, buf.get(), len), -1);
ASSERT_EQ(lseek(fd, off, SEEK_SET), static_cast<ssize_t>(off));
ASSERT_EQ(read(fd, buf.get(), len), -1);
END_HELPER;
}
bool CheckDeadBlock(int fd) {
BEGIN_HELPER;
fbl::AllocChecker ac;
constexpr size_t kBlksize = 8192;
fbl::unique_ptr<uint8_t[]> buf(new (&ac) uint8_t[kBlksize]);
ASSERT_TRUE(ac.check());
ASSERT_EQ(lseek(fd, 0, SEEK_SET), 0);
ASSERT_EQ(write(fd, buf.get(), kBlksize), -1);
ASSERT_EQ(lseek(fd, 0, SEEK_SET), 0);
ASSERT_EQ(read(fd, buf.get(), kBlksize), -1);
END_HELPER;
}
bool Upgrade(const fzl::FdioCaller& caller, const uint8_t* old_guid, const uint8_t* new_guid,
zx_status_t result) {
BEGIN_HELPER;
fuchsia_hardware_block_partition_GUID old_guid_fidl;
memcpy(&old_guid_fidl.value, old_guid, fuchsia_hardware_block_partition_GUID_LENGTH);
fuchsia_hardware_block_partition_GUID new_guid_fidl;
memcpy(&new_guid_fidl.value, new_guid, fuchsia_hardware_block_partition_GUID_LENGTH);
zx_status_t status;
zx_status_t io_status = fuchsia_hardware_block_volume_VolumeManagerActivate(
caller.borrow_channel(), &old_guid_fidl, &new_guid_fidl, &status);
ASSERT_EQ(ZX_OK, io_status);
ASSERT_EQ(result, status);
END_HELPER;
}
/////////////////////// Actual tests:
// Test initializing the FVM on a partition that is smaller than a slice
bool TestTooSmall() {
BEGIN_TEST;
if (use_real_disk) {
fprintf(stderr, "Test is ramdisk-exclusive; ignoring\n");
return true;
}
uint64_t blk_size = 512;
uint64_t blk_count = (1 << 15);
ASSERT_GE(ramdisk_create(blk_size, blk_count, &test_ramdisk), 0);
const char* ramdisk_path = ramdisk_get_path(test_ramdisk);
fbl::unique_fd fd(open(ramdisk_path, O_RDWR));
ASSERT_TRUE(fd);
size_t slice_size = blk_size * blk_count;
ASSERT_EQ(fvm_init(fd.get(), slice_size), ZX_ERR_NO_SPACE);
ASSERT_TRUE(ValidateFVM(ramdisk_path, ValidationResult::Corrupted));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
// Test initializing the FVM on a large partition, with metadata size > the max transfer size
bool TestLarge() {
BEGIN_TEST;
if (use_real_disk) {
fprintf(stderr, "Test is ramdisk-exclusive; ignoring\n");
return true;
}
char fvm_path[PATH_MAX];
uint64_t blk_size = 512;
uint64_t blk_count = 8 * (1 << 20);
ASSERT_GE(ramdisk_create(blk_size, blk_count, &test_ramdisk), 0);
const char* ramdisk_path = ramdisk_get_path(test_ramdisk);
size_t slice_size = 16 * (1 << 10);
size_t metadata_size = fvm::MetadataSize(blk_size * blk_count, slice_size);
fbl::unique_fd fd(open(ramdisk_path, O_RDWR));
ASSERT_GT(fd.get(), 0);
fzl::UnownedFdioCaller disk_connection(fd.get());
zx::unowned_channel channel(disk_connection.borrow_channel());
zx_status_t status;
fuchsia_hardware_block_BlockInfo block_info;
ASSERT_EQ(fuchsia_hardware_block_BlockGetInfo(channel->get(), &status, &block_info), ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_LT(block_info.max_transfer_size, metadata_size);
ASSERT_EQ(fvm_init(fd.get(), slice_size), ZX_OK);
ASSERT_EQ(fuchsia_device_ControllerBind(channel->get(), FVM_DRIVER_LIB, STRLEN(FVM_DRIVER_LIB),
&status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
snprintf(fvm_path, sizeof(fvm_path), "%s/fvm", ramdisk_path);
ASSERT_EQ(wait_for_device(fvm_path, ZX_SEC(3)), ZX_OK);
ASSERT_TRUE(ValidateFVM(ramdisk_path));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
// Load and unload an empty FVM
bool TestEmpty() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
ASSERT_EQ(StartFVMTest(512, 1 << 20, 64lu * (1 << 20), ramdisk_path, fvm_driver), 0);
ASSERT_TRUE(FVMCheckSliceSize(fvm_driver, 64lu * (1 << 20)));
ASSERT_TRUE(ValidateFVM(ramdisk_path));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
// Test allocating a single partition
bool TestAllocateOne() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
ASSERT_EQ(StartFVMTest(512, 1 << 20, 64lu * (1 << 20), ramdisk_path, fvm_driver), 0);
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd);
// Allocate one VPart
alloc_req_t request;
memset(&request, 0, sizeof(request));
request.slice_count = 1;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
strcpy(request.name, kTestPartName1);
memcpy(request.type, kTestPartGUIDData, GUID_LEN);
fbl::unique_fd vp_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(vp_fd);
// Check that the name matches what we provided
char name[fvm::kMaxVPartitionNameLength + 1];
fzl::UnownedFdioCaller partition_connection(vp_fd.get());
zx_status_t status;
size_t actual;
ASSERT_EQ(fuchsia_hardware_block_partition_PartitionGetName(
partition_connection.borrow_channel(), &status, name, sizeof(name), &actual),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
name[actual] = '\0';
ASSERT_EQ(memcmp(name, kTestPartName1, strlen(kTestPartName1)), 0);
// Check that we can read from / write to it.
ASSERT_TRUE(CheckWriteReadBlock(vp_fd.get(), 0, 1));
// Try accessing the block again after closing / re-opening it.
ASSERT_EQ(close(vp_fd.release()), 0);
vp_fd.reset(open_partition(kTestUniqueGUID, kTestPartGUIDData, 0, nullptr));
ASSERT_TRUE(vp_fd, "Couldn't re-open Data VPart");
ASSERT_TRUE(CheckWriteReadBlock(vp_fd.get(), 0, 1));
ASSERT_EQ(close(vp_fd.release()), 0);
ASSERT_EQ(close(fd.release()), 0);
ASSERT_TRUE(FVMCheckSliceSize(fvm_driver, 64lu * (1 << 20)));
ASSERT_TRUE(ValidateFVM(ramdisk_path));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
// Test allocating a collection of partitions
bool TestAllocateMany() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
ASSERT_EQ(StartFVMTest(512, 1 << 20, 64lu * (1 << 20), ramdisk_path, fvm_driver), 0);
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd);
// Test allocation of multiple VPartitions
alloc_req_t request;
memset(&request, 0, sizeof(request));
request.slice_count = 1;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
strcpy(request.name, kTestPartName1);
memcpy(request.type, kTestPartGUIDData, GUID_LEN);
fbl::unique_fd data_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(data_fd);
strcpy(request.name, kTestPartName2);
memcpy(request.type, kTestPartGUIDBlob, GUID_LEN);
fbl::unique_fd blob_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(blob_fd);
strcpy(request.name, kTestPartName3);
memcpy(request.type, kTestPartGUIDSystem, GUID_LEN);
fbl::unique_fd sys_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(sys_fd);
ASSERT_TRUE(CheckWriteReadBlock(data_fd.get(), 0, 1));
ASSERT_TRUE(CheckWriteReadBlock(blob_fd.get(), 0, 1));
ASSERT_TRUE(CheckWriteReadBlock(sys_fd.get(), 0, 1));
ASSERT_EQ(close(data_fd.release()), 0);
ASSERT_EQ(close(blob_fd.release()), 0);
ASSERT_EQ(close(sys_fd.release()), 0);
ASSERT_EQ(close(fd.release()), 0);
ASSERT_TRUE(FVMCheckSliceSize(fvm_driver, 64lu * (1 << 20)));
ASSERT_TRUE(ValidateFVM(ramdisk_path));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
// Test that the fvm driver can cope with a sudden close during read / write
// operations.
bool TestCloseDuringAccess() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
ASSERT_EQ(StartFVMTest(512, 1 << 20, 64lu * (1 << 20), ramdisk_path, fvm_driver), 0);
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd);
alloc_req_t request;
memset(&request, 0, sizeof(request));
request.slice_count = 1;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
strcpy(request.name, kTestPartName1);
memcpy(request.type, kTestPartGUIDData, GUID_LEN);
fbl::unique_fd vp_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(vp_fd);
auto bg_thread = [](void* arg) {
int vp_fd = *reinterpret_cast<int*>(arg);
while (true) {
uint8_t in[8192];
memset(in, 'a', sizeof(in));
if (write(vp_fd, in, sizeof(in)) != static_cast<ssize_t>(sizeof(in))) {
return 0;
}
uint8_t out[8192];
memset(out, 0, sizeof(out));
lseek(vp_fd, 0, SEEK_SET);
if (read(vp_fd, out, sizeof(out)) != static_cast<ssize_t>(sizeof(out))) {
return 0;
}
// If we DID manage to read it, then the data should be valid...
if (memcmp(in, out, sizeof(in)) != 0) {
return -1;
}
}
};
// Launch a background thread to read from / write to the VPartition
thrd_t thread;
int raw_fd = vp_fd.get();
ASSERT_EQ(thrd_create(&thread, bg_thread, &raw_fd), thrd_success);
// Let the background thread warm up a little bit...
usleep(10000);
// ... and close the fd from underneath it!
//
// Yes, this is a little unsafe (we risk the bg thread accessing an
// unallocated fd), but no one else in this test process should be adding
// fds, so we won't risk anyone reusing "vp_fd" within this test case.
ASSERT_EQ(close(vp_fd.release()), 0);
int res;
ASSERT_EQ(thrd_join(thread, &res), thrd_success);
ASSERT_EQ(res, 0, "Background thread failed");
ASSERT_EQ(close(fd.release()), 0);
ASSERT_TRUE(FVMCheckSliceSize(fvm_driver, 64lu * (1 << 20)));
ASSERT_TRUE(ValidateFVM(ramdisk_path));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
// Test that the fvm driver can cope with a sudden release during read / write
// operations.
bool TestReleaseDuringAccess() {
BEGIN_TEST;
if (use_real_disk) {
fprintf(stderr, "Test is ramdisk-exclusive; ignoring\n");
return true;
}
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
ASSERT_EQ(StartFVMTest(512, 1 << 20, 64lu * (1 << 20), ramdisk_path, fvm_driver), 0);
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd);
alloc_req_t request;
memset(&request, 0, sizeof(request));
request.slice_count = 1;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
strcpy(request.name, kTestPartName1);
memcpy(request.type, kTestPartGUIDData, GUID_LEN);
fbl::unique_fd vp_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(vp_fd);
auto bg_thread = [](void* arg) {
int vp_fd = *reinterpret_cast<int*>(arg);
while (true) {
uint8_t in[8192];
memset(in, 'a', sizeof(in));
if (write(vp_fd, in, sizeof(in)) != static_cast<ssize_t>(sizeof(in))) {
return 0;
}
uint8_t out[8192];
memset(out, 0, sizeof(out));
lseek(vp_fd, 0, SEEK_SET);
if (read(vp_fd, out, sizeof(out)) != static_cast<ssize_t>(sizeof(out))) {
return 0;
}
// If we DID manage to read it, then the data should be valid...
if (memcmp(in, out, sizeof(in)) != 0) {
return -1;
}
}
};
// Launch a background thread to read from / write to the VPartition
thrd_t thread;
int raw_fd = vp_fd.get();
ASSERT_EQ(thrd_create(&thread, bg_thread, &raw_fd), thrd_success);
// Let the background thread warm up a little bit...
usleep(10000);
// ... and close the entire ramdisk from underneath it!
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
int res;
ASSERT_EQ(thrd_join(thread, &res), thrd_success);
ASSERT_EQ(res, 0, "Background thread failed");
END_TEST;
}
bool TestDestroyDuringAccess() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
ASSERT_EQ(StartFVMTest(512, 1 << 20, 64lu * (1 << 20), ramdisk_path, fvm_driver), 0);
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd);
alloc_req_t request;
request.slice_count = 1;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
strcpy(request.name, kTestPartName1);
memcpy(request.type, kTestPartGUIDData, GUID_LEN);
fbl::unique_fd vp_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(vp_fd);
auto bg_thread = [](void* arg) {
int vp_fd = *reinterpret_cast<int*>(arg);
unsigned count = 0;
while (true) {
if (++count % 10000 == 0) {
printf("Run %u\n", count);
}
uint8_t in[8192];
memset(in, 'a', sizeof(in));
if (write(vp_fd, in, sizeof(in)) != static_cast<ssize_t>(sizeof(in))) {
return 0;
}
uint8_t out[8192];
memset(out, 0, sizeof(out));
lseek(vp_fd, 0, SEEK_SET);
if (read(vp_fd, out, sizeof(out)) != static_cast<ssize_t>(sizeof(out))) {
return 0;
}
// If we DID manage to read it, then the data should be valid...
if (memcmp(in, out, sizeof(in)) != 0) {
return -1;
}
}
};
// Launch a background thread to read from / write to the VPartition
thrd_t thread;
int raw_fd = vp_fd.get();
ASSERT_EQ(thrd_create(&thread, bg_thread, &raw_fd), thrd_success);
// Let the background thread warm up a little bit...
usleep(10000);
// ... and destroy the vpartition
fzl::FdioCaller partition_caller(std::move(vp_fd));
zx_status_t status;
ASSERT_EQ(
fuchsia_hardware_block_volume_VolumeDestroy(partition_caller.borrow_channel(), &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
int res;
ASSERT_EQ(thrd_join(thread, &res), thrd_success);
ASSERT_EQ(res, 0, "Background thread failed");
ASSERT_TRUE(FVMCheckSliceSize(fvm_driver, 64lu * (1 << 20)));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
// Test allocating additional slices to a vpartition.
bool TestVPartitionExtend() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
ASSERT_EQ(StartFVMTest(512, 1 << 20, 64lu * (1 << 20), ramdisk_path, fvm_driver), 0);
const size_t kDiskSize = use_real_disk ? test_block_size * test_block_count : 512 * (1 << 20);
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd, "Couldn't open Volume Manager");
volume_info_t volume_info;
ASSERT_EQ(fvm_query(fd.get(), &volume_info), ZX_OK);
size_t slice_size = volume_info.slice_size;
size_t slices_total = fvm::UsableSlicesCount(kDiskSize, slice_size);
size_t slices_left = slices_total;
ASSERT_TRUE(FVMCheckAllocatedCount(fd.get(), slices_total - slices_left, slices_total));
// Allocate one VPart
alloc_req_t request;
memset(&request, 0, sizeof(request));
size_t slice_count = 1;
request.slice_count = slice_count;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
strcpy(request.name, kTestPartName1);
memcpy(request.type, kTestPartGUIDData, GUID_LEN);
fbl::unique_fd vp_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(vp_fd, "Couldn't open Volume");
slices_left--;
ASSERT_TRUE(FVMCheckAllocatedCount(fd.get(), slices_total - slices_left, slices_total));
// Confirm that the disk reports the correct number of slices
fzl::FdioCaller partition_caller(std::move(vp_fd));
zx::unowned_channel partition_channel(partition_caller.borrow_channel());
fuchsia_hardware_block_BlockInfo block_info;
zx_status_t status;
ASSERT_EQ(fuchsia_hardware_block_BlockGetInfo(partition_channel->get(), &status, &block_info),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(block_info.block_count * block_info.block_size, slice_size * slice_count);
// Try re-allocating an already allocated vslice
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), 0, 1, &status),
ZX_OK);
ASSERT_NE(status, ZX_OK, "Expected request failure");
ASSERT_EQ(fuchsia_hardware_block_BlockGetInfo(partition_channel->get(), &status, &block_info),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(block_info.block_count * block_info.block_size, slice_size * slice_count);
// Try again with a portion of the request which is unallocated
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), 0, 2, &status),
ZX_OK);
ASSERT_NE(status, ZX_OK, "Expected request failure");
// Allocate OBSCENELY too many slices
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), slice_count,
std::numeric_limits<size_t>::max(),
&status),
ZX_OK);
ASSERT_NE(status, ZX_OK, "Expected request failure");
// Allocate slices at a too-large offset
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(
partition_channel->get(), std::numeric_limits<size_t>::max(), 1, &status),
ZX_OK);
ASSERT_NE(status, ZX_OK, "Expected request failure");
// Attempt to allocate slightly too many slices
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), slice_count,
slices_left + 1, &status),
ZX_OK);
ASSERT_NE(status, ZX_OK, "Expected request failure");
// The number of free slices should be unchanged.
ASSERT_TRUE(FVMCheckAllocatedCount(fd.get(), slices_total - slices_left, slices_total));
// Allocate exactly the remaining number of slices
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), slice_count,
slices_left, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
slice_count += slices_left;
slices_left = 0;
ASSERT_TRUE(FVMCheckAllocatedCount(fd.get(), slices_total - slices_left, slices_total));
ASSERT_EQ(fuchsia_hardware_block_BlockGetInfo(partition_channel->get(), &status, &block_info),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(block_info.block_count * block_info.block_size, slice_size * slice_count);
// We can't allocate any more to this VPartition
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), slice_count, 1,
&status),
ZX_OK);
ASSERT_NE(status, ZX_OK, "Expected request failure");
// We can't allocate a new VPartition
strcpy(request.name, kTestPartName2);
memcpy(request.type, kTestPartGUIDBlob, GUID_LEN);
ASSERT_LT(fvm_allocate_partition(fd.get(), &request), 0, "Expected VPart allocation failure");
ASSERT_TRUE(FVMCheckSliceSize(fvm_driver, 64lu * (1 << 20)));
ASSERT_TRUE(ValidateFVM(ramdisk_path));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
// Test allocating very sparse VPartition
bool TestVPartitionExtendSparse() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
uint64_t blk_size = use_real_disk ? test_block_size : 512;
uint64_t blk_count = use_real_disk ? test_block_size : 1 << 20;
uint64_t slice_size = 16 * blk_size;
ASSERT_EQ(StartFVMTest(blk_size, blk_count, slice_size, ramdisk_path, fvm_driver), 0);
size_t slices_left = fvm::UsableSlicesCount(blk_size * blk_count, slice_size);
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd);
alloc_req_t request;
memset(&request, 0, sizeof(request));
request.slice_count = 1;
slices_left--;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
strcpy(request.name, kTestPartName1);
memcpy(request.type, kTestPartGUIDData, GUID_LEN);
fbl::unique_fd vp_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(vp_fd);
ASSERT_TRUE(CheckWriteReadBlock(vp_fd.get(), 0, 1));
// Double check that we can access a block at this vslice address
// (this isn't always possible; for certain slice sizes, blocks may be
// allocatable / freeable, but not addressable).
size_t bno = (fvm::kMaxVSlices - 1) * (slice_size / blk_size);
ASSERT_EQ(bno / (slice_size / blk_size), (fvm::kMaxVSlices - 1), "bno overflowed");
ASSERT_EQ((bno * blk_size) / blk_size, bno, "block access will overflow");
fzl::UnownedFdioCaller partition_caller(vp_fd.get());
zx::unowned_channel partition_channel(partition_caller.borrow_channel());
zx_status_t status;
// Try allocating at a location that's slightly too large
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), fvm::kMaxVSlices,
1, &status),
ZX_OK);
ASSERT_NE(status, ZX_OK, "Expected request failure");
// Try allocating at the largest offset
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(),
fvm::kMaxVSlices - 1, 1, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_TRUE(CheckWriteReadBlock(vp_fd.get(), bno, 1));
// Try freeing beyond largest offset
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeShrink(partition_channel->get(), fvm::kMaxVSlices,
1, &status),
ZX_OK);
ASSERT_NE(status, ZX_OK, "Expected request failure");
ASSERT_TRUE(CheckWriteReadBlock(vp_fd.get(), bno, 1));
// Try freeing at the largest offset
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeShrink(partition_channel->get(),
fvm::kMaxVSlices - 1, 1, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_TRUE(CheckNoAccessBlock(vp_fd.get(), bno, 1));
ASSERT_EQ(close(vp_fd.release()), 0);
ASSERT_EQ(close(fd.release()), 0);
ASSERT_TRUE(FVMCheckSliceSize(fvm_driver, slice_size));
ASSERT_TRUE(ValidateFVM(ramdisk_path));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
// Test removing slices from a VPartition.
bool TestVPartitionShrink() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
ASSERT_EQ(StartFVMTest(512, 1 << 20, 64lu * (1 << 20), ramdisk_path, fvm_driver), 0);
const size_t kDiskSize = use_real_disk ? test_block_size * test_block_count : 512 * (1 << 20);
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd, "Couldn't open Volume Manager");
volume_info_t volume_info;
ASSERT_EQ(fvm_query(fd.get(), &volume_info), ZX_OK);
size_t slice_size = volume_info.slice_size;
size_t slices_total = fvm::UsableSlicesCount(kDiskSize, slice_size);
size_t slices_left = slices_total;
ASSERT_TRUE(FVMCheckAllocatedCount(fd.get(), slices_total - slices_left, slices_total));
// Allocate one VPart
alloc_req_t request;
memset(&request, 0, sizeof(request));
size_t slice_count = 1;
request.slice_count = slice_count;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
strcpy(request.name, kTestPartName1);
memcpy(request.type, kTestPartGUIDData, GUID_LEN);
fbl::unique_fd vp_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(vp_fd, "Couldn't open Volume");
slices_left--;
fzl::UnownedFdioCaller partition_caller(vp_fd.get());
zx::unowned_channel partition_channel(partition_caller.borrow_channel());
zx_status_t status;
// Confirm that the disk reports the correct number of slices
fuchsia_hardware_block_BlockInfo block_info;
ASSERT_EQ(fuchsia_hardware_block_BlockGetInfo(partition_channel->get(), &status, &block_info),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(block_info.block_count * block_info.block_size, slice_size * slice_count);
ASSERT_TRUE(CheckWriteReadBlock(vp_fd.get(), (slice_size / block_info.block_size) - 1, 1));
ASSERT_TRUE(CheckNoAccessBlock(vp_fd.get(), (slice_size / block_info.block_size) - 1, 2));
ASSERT_TRUE(FVMCheckAllocatedCount(fd.get(), slices_total - slices_left, slices_total));
// Try shrinking the 0th vslice
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeShrink(partition_channel->get(), 0, 1, &status),
ZX_OK);
ASSERT_NE(status, ZX_OK, "Expected request failure");
// Try no-op requests (length = 0).
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), 1, 0, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeShrink(partition_channel->get(), 1, 0, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(fuchsia_hardware_block_BlockGetInfo(partition_channel->get(), &status, &block_info),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(block_info.block_count * block_info.block_size, slice_size * slice_count);
// Try again with a portion of the request which is unallocated
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeShrink(partition_channel->get(), 1, 2, &status),
ZX_OK);
ASSERT_NE(status, ZX_OK);
ASSERT_EQ(fuchsia_hardware_block_BlockGetInfo(partition_channel->get(), &status, &block_info),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(block_info.block_count * block_info.block_size, slice_size * slice_count);
ASSERT_TRUE(FVMCheckAllocatedCount(fd.get(), slices_total - slices_left, slices_total));
// Allocate exactly the remaining number of slices
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), slice_count,
slices_left, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
slice_count += slices_left;
slices_left = 0;
ASSERT_EQ(fuchsia_hardware_block_BlockGetInfo(partition_channel->get(), &status, &block_info),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(block_info.block_count * block_info.block_size, slice_size * slice_count);
ASSERT_TRUE(CheckWriteReadBlock(vp_fd.get(), (slice_size / block_info.block_size) - 1, 1));
ASSERT_TRUE(CheckWriteReadBlock(vp_fd.get(), (slice_size / block_info.block_size) - 1, 2));
ASSERT_TRUE(FVMCheckAllocatedCount(fd.get(), slices_total - slices_left, slices_total));
// We can't allocate any more to this VPartition
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), slice_count, 1,
&status),
ZX_OK);
ASSERT_NE(status, ZX_OK);
// Try to shrink off the end (okay, since SOME of the slices are allocated)
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeShrink(partition_channel->get(), 1,
slice_count + 3, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_TRUE(FVMCheckAllocatedCount(fd.get(), 1, slices_total));
// The same request to shrink should now fail (NONE of the slices are
// allocated)
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeShrink(partition_channel->get(), 1,
slice_count - 1, &status),
ZX_OK);
ASSERT_NE(status, ZX_OK);
ASSERT_TRUE(FVMCheckAllocatedCount(fd.get(), 1, slices_total));
// ... unless we re-allocate and try again.
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), 1,
slice_count - 1, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeShrink(partition_channel->get(), 1,
slice_count - 1, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_TRUE(FVMCheckSliceSize(fvm_driver, 64lu * (1 << 20)));
ASSERT_TRUE(ValidateFVM(ramdisk_path));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
// Test splitting a contiguous slice extent into multiple parts
bool TestVPartitionSplit() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
ASSERT_EQ(StartFVMTest(512, 1 << 20, 64lu * (1 << 20), ramdisk_path, fvm_driver), 0);
size_t disk_size = 512 * (1 << 20);
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd);
volume_info_t volume_info;
ASSERT_EQ(fvm_query(fd.get(), &volume_info), ZX_OK);
size_t slice_size = volume_info.slice_size;
size_t slices_left = fvm::UsableSlicesCount(disk_size, slice_size);
// Allocate one VPart
alloc_req_t request;
memset(&request, 0, sizeof(request));
size_t slice_count = 5;
request.slice_count = slice_count;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
strcpy(request.name, kTestPartName1);
memcpy(request.type, kTestPartGUIDData, GUID_LEN);
fbl::unique_fd vp_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(vp_fd);
slices_left--;
fzl::UnownedFdioCaller partition_caller(vp_fd.get());
zx::unowned_channel partition_channel(partition_caller.borrow_channel());
// Confirm that the disk reports the correct number of slices
fuchsia_hardware_block_BlockInfo block_info;
zx_status_t status;
ASSERT_EQ(fuchsia_hardware_block_BlockGetInfo(partition_channel->get(), &status, &block_info),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(block_info.block_count * block_info.block_size, slice_size * slice_count);
extend_request_t reset_erequest;
reset_erequest.offset = 1;
reset_erequest.length = slice_count - 1;
extend_request_t mid_erequest;
mid_erequest.offset = 2;
mid_erequest.length = 1;
extend_request_t start_erequest;
start_erequest.offset = 1;
start_erequest.length = 1;
extend_request_t end_erequest;
end_erequest.offset = 3;
end_erequest.length = slice_count - 3;
auto verifyExtents = [&](bool start, bool mid, bool end) {
size_t start_block = start_erequest.offset * (slice_size / block_info.block_size);
size_t mid_block = mid_erequest.offset * (slice_size / block_info.block_size);
size_t end_block = end_erequest.offset * (slice_size / block_info.block_size);
if (start) {
ASSERT_TRUE(CheckWriteReadBlock(vp_fd.get(), start_block, 1));
} else {
ASSERT_TRUE(CheckNoAccessBlock(vp_fd.get(), start_block, 1));
}
if (mid) {
ASSERT_TRUE(CheckWriteReadBlock(vp_fd.get(), mid_block, 1));
} else {
ASSERT_TRUE(CheckNoAccessBlock(vp_fd.get(), mid_block, 1));
}
if (end) {
ASSERT_TRUE(CheckWriteReadBlock(vp_fd.get(), end_block, 1));
} else {
ASSERT_TRUE(CheckNoAccessBlock(vp_fd.get(), end_block, 1));
}
return true;
};
auto doExtend = [](const zx::unowned_channel& partition_channel, extend_request_t request) {
BEGIN_HELPER;
zx_status_t status;
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(
partition_channel->get(), request.offset, request.length, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
END_HELPER;
};
auto doShrink = [](const zx::unowned_channel& partition_channel, extend_request_t request) {
BEGIN_HELPER;
zx_status_t status;
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeShrink(
partition_channel->get(), request.offset, request.length, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
END_HELPER;
};
// We should be able to split the extent.
ASSERT_TRUE(verifyExtents(true, true, true));
ASSERT_TRUE(doShrink(partition_channel, mid_erequest));
ASSERT_TRUE(verifyExtents(true, false, true));
ASSERT_TRUE(doShrink(partition_channel, start_erequest));
ASSERT_TRUE(verifyExtents(false, false, true));
ASSERT_TRUE(doShrink(partition_channel, end_erequest));
ASSERT_TRUE(verifyExtents(false, false, false));
ASSERT_TRUE(doExtend(partition_channel, reset_erequest));
ASSERT_TRUE(doShrink(partition_channel, start_erequest));
ASSERT_TRUE(verifyExtents(false, true, true));
ASSERT_TRUE(doShrink(partition_channel, mid_erequest));
ASSERT_TRUE(verifyExtents(false, false, true));
ASSERT_TRUE(doShrink(partition_channel, end_erequest));
ASSERT_TRUE(verifyExtents(false, false, false));
ASSERT_TRUE(doExtend(partition_channel, reset_erequest));
ASSERT_TRUE(doShrink(partition_channel, end_erequest));
ASSERT_TRUE(verifyExtents(true, true, false));
ASSERT_TRUE(doShrink(partition_channel, mid_erequest));
ASSERT_TRUE(verifyExtents(true, false, false));
ASSERT_TRUE(doShrink(partition_channel, start_erequest));
ASSERT_TRUE(verifyExtents(false, false, false));
ASSERT_TRUE(doExtend(partition_channel, reset_erequest));
ASSERT_TRUE(doShrink(partition_channel, end_erequest));
ASSERT_TRUE(verifyExtents(true, true, false));
ASSERT_TRUE(doShrink(partition_channel, start_erequest));
ASSERT_TRUE(verifyExtents(false, true, false));
ASSERT_TRUE(doShrink(partition_channel, mid_erequest));
ASSERT_TRUE(verifyExtents(false, false, false));
// We should also be able to combine extents
ASSERT_TRUE(doExtend(partition_channel, mid_erequest));
ASSERT_TRUE(verifyExtents(false, true, false));
ASSERT_TRUE(doExtend(partition_channel, start_erequest));
ASSERT_TRUE(verifyExtents(true, true, false));
ASSERT_TRUE(doExtend(partition_channel, end_erequest));
ASSERT_TRUE(verifyExtents(true, true, true));
ASSERT_TRUE(doShrink(partition_channel, reset_erequest));
ASSERT_TRUE(doExtend(partition_channel, end_erequest));
ASSERT_TRUE(verifyExtents(false, false, true));
ASSERT_TRUE(doExtend(partition_channel, mid_erequest));
ASSERT_TRUE(verifyExtents(false, true, true));
ASSERT_TRUE(doExtend(partition_channel, start_erequest));
ASSERT_TRUE(verifyExtents(true, true, true));
ASSERT_TRUE(doShrink(partition_channel, reset_erequest));
ASSERT_TRUE(doExtend(partition_channel, end_erequest));
ASSERT_TRUE(verifyExtents(false, false, true));
ASSERT_TRUE(doExtend(partition_channel, start_erequest));
ASSERT_TRUE(verifyExtents(true, false, true));
ASSERT_TRUE(doExtend(partition_channel, mid_erequest));
ASSERT_TRUE(verifyExtents(true, true, true));
ASSERT_EQ(close(vp_fd.release()), 0);
ASSERT_EQ(close(fd.release()), 0);
ASSERT_TRUE(FVMCheckSliceSize(fvm_driver, 64lu * (1 << 20)));
ASSERT_TRUE(ValidateFVM(ramdisk_path));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
// Test removing VPartitions within an FVM
bool TestVPartitionDestroy() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
ASSERT_EQ(StartFVMTest(512, 1 << 20, 64lu * (1 << 20), ramdisk_path, fvm_driver), 0);
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd);
// Test allocation of multiple VPartitions
alloc_req_t request;
memset(&request, 0, sizeof(request));
request.slice_count = 1;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
strcpy(request.name, kTestPartName1);
memcpy(request.type, kTestPartGUIDData, GUID_LEN);
fbl::unique_fd data_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(data_fd);
fzl::UnownedFdioCaller data_caller(data_fd.get());
zx::unowned_channel data_channel(data_caller.borrow_channel());
strcpy(request.name, kTestPartName2);
memcpy(request.type, kTestPartGUIDBlob, GUID_LEN);
fbl::unique_fd blob_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(blob_fd);
fzl::UnownedFdioCaller blob_caller(blob_fd.get());
zx::unowned_channel blob_channel(blob_caller.borrow_channel());
strcpy(request.name, kTestPartName3);
memcpy(request.type, kTestPartGUIDSystem, GUID_LEN);
fbl::unique_fd sys_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(sys_fd);
fzl::UnownedFdioCaller sys_caller(sys_fd.get());
zx::unowned_channel sys_channel(sys_caller.borrow_channel());
// We can access all three...
ASSERT_TRUE(CheckWriteReadBlock(data_fd.get(), 0, 1));
ASSERT_TRUE(CheckWriteReadBlock(blob_fd.get(), 0, 1));
ASSERT_TRUE(CheckWriteReadBlock(sys_fd.get(), 0, 1));
// But not after we destroy the blob partition.
zx_status_t status;
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeDestroy(blob_channel->get(), &status), ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_TRUE(CheckWriteReadBlock(data_fd.get(), 0, 1));
ASSERT_TRUE(CheckDeadBlock(blob_fd.get()));
ASSERT_TRUE(CheckWriteReadBlock(sys_fd.get(), 0, 1));
// We also can't re-destroy the blob partition.
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeDestroy(blob_channel->get(), &status), ZX_OK);
ASSERT_NE(status, ZX_OK);
// We also can't allocate slices to the destroyed blob partition.
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(blob_channel->get(), 1, 1, &status),
ZX_OK);
ASSERT_NE(status, ZX_OK);
// Destroy the other two VPartitions.
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeDestroy(data_channel->get(), &status), ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_TRUE(CheckDeadBlock(data_fd.get()));
ASSERT_TRUE(CheckDeadBlock(blob_fd.get()));
ASSERT_TRUE(CheckWriteReadBlock(sys_fd.get(), 0, 1));
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeDestroy(sys_channel->get(), &status), ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_TRUE(CheckDeadBlock(data_fd.get()));
ASSERT_TRUE(CheckDeadBlock(blob_fd.get()));
ASSERT_TRUE(CheckDeadBlock(sys_fd.get()));
ASSERT_EQ(close(data_fd.release()), 0);
ASSERT_EQ(close(blob_fd.release()), 0);
ASSERT_EQ(close(sys_fd.release()), 0);
ASSERT_EQ(close(fd.release()), 0);
ASSERT_TRUE(FVMCheckSliceSize(fvm_driver, 64lu * (1 << 20)));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
bool TestVPartitionQuery() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
size_t slice_count = 64;
size_t block_count = 512;
size_t block_size = 1 << 20;
size_t slice_size = (block_count * block_size) / slice_count;
ASSERT_EQ(StartFVMTest(block_count, block_size, slice_size, ramdisk_path, fvm_driver), 0);
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd);
// Allocate partition
alloc_req_t request;
memset(&request, 0, sizeof(request));
request.slice_count = 10;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
strcpy(request.name, kTestPartName1);
memcpy(request.type, kTestPartGUIDData, GUID_LEN);
fbl::unique_fd part_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(part_fd);
fzl::FdioCaller partition_caller(std::move(part_fd));
zx::unowned_channel partition_channel(partition_caller.borrow_channel());
// Create non-contiguous extent.
zx_status_t status;
uint64_t offset = 20;
uint64_t length = 10;
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), offset, length,
&status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
volume_info_t volume_info;
ASSERT_EQ(fvm_query(fd.get(), &volume_info), ZX_OK);
// Query various vslice ranges
uint64_t start_slices[6];
start_slices[0] = 0;
start_slices[1] = 10;
start_slices[2] = 20;
start_slices[3] = 50;
start_slices[4] = 25;
start_slices[5] = 15;
// Check response from partition query
fuchsia_hardware_block_volume_VsliceRange
ranges[fuchsia_hardware_block_volume_MAX_SLICE_REQUESTS];
size_t actual_ranges_count;
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeQuerySlices(
partition_channel->get(), start_slices, fbl::count_of(start_slices), &status,
ranges, &actual_ranges_count),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(actual_ranges_count, fbl::count_of(start_slices));
ASSERT_TRUE(ranges[0].allocated);
ASSERT_EQ(ranges[0].count, 10);
ASSERT_FALSE(ranges[1].allocated);
ASSERT_EQ(ranges[1].count, 10);
ASSERT_TRUE(ranges[2].allocated);
ASSERT_EQ(ranges[2].count, 10);
ASSERT_FALSE(ranges[3].allocated);
ASSERT_EQ(ranges[3].count, volume_info.vslice_count - 50);
ASSERT_TRUE(ranges[4].allocated);
ASSERT_EQ(ranges[4].count, 5);
ASSERT_FALSE(ranges[5].allocated);
ASSERT_EQ(ranges[5].count, 5);
// Merge the extents!
offset = 10;
length = 10;
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), offset, length,
&status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
// Check partition query response again after extend
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeQuerySlices(
partition_channel->get(), start_slices, fbl::count_of(start_slices), &status,
ranges, &actual_ranges_count),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(actual_ranges_count, fbl::count_of(start_slices));
ASSERT_TRUE(ranges[0].allocated);
ASSERT_EQ(ranges[0].count, 30);
ASSERT_TRUE(ranges[1].allocated);
ASSERT_EQ(ranges[1].count, 20);
ASSERT_TRUE(ranges[2].allocated);
ASSERT_EQ(ranges[2].count, 10);
ASSERT_FALSE(ranges[3].allocated);
ASSERT_EQ(ranges[3].count, volume_info.vslice_count - 50);
ASSERT_TRUE(ranges[4].allocated);
ASSERT_EQ(ranges[4].count, 5);
ASSERT_TRUE(ranges[5].allocated);
ASSERT_EQ(ranges[5].count, 15);
start_slices[0] = volume_info.vslice_count + 1;
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeQuerySlices(
partition_channel->get(), start_slices, fbl::count_of(start_slices), &status,
ranges, &actual_ranges_count),
ZX_OK);
ASSERT_EQ(status, ZX_ERR_OUT_OF_RANGE);
ASSERT_EQ(close(fd.release()), 0);
ASSERT_TRUE(FVMCheckSliceSize(fvm_driver, slice_size));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
// Test allocating and accessing slices which are allocated contiguously.
bool TestSliceAccessContiguous() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
ASSERT_EQ(StartFVMTest(512, 1 << 20, 64lu * (1 << 20), ramdisk_path, fvm_driver), 0);
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd);
volume_info_t volume_info;
ASSERT_EQ(fvm_query(fd.get(), &volume_info), ZX_OK);
size_t slice_size = volume_info.slice_size;
// Allocate one VPart
alloc_req_t request;
memset(&request, 0, sizeof(request));
request.slice_count = 1;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
strcpy(request.name, kTestPartName1);
memcpy(request.type, kTestPartGUIDData, GUID_LEN);
fbl::unique_fd vp_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(vp_fd);
fzl::UnownedFdioCaller partition_caller(vp_fd.get());
zx::unowned_channel partition_channel(partition_caller.borrow_channel());
fuchsia_hardware_block_BlockInfo block_info;
zx_status_t status;
ASSERT_EQ(fuchsia_hardware_block_BlockGetInfo(partition_channel->get(), &status, &block_info),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
// This is the last 'accessible' block.
size_t last_block = (slice_size / block_info.block_size) - 1;
{
fbl::RefPtr<VmoClient> vc;
ASSERT_TRUE(VmoClient::Create(vp_fd.get(), &vc));
fbl::unique_ptr<VmoBuf> vb;
ASSERT_TRUE(VmoBuf::Create(vc, block_info.block_size * 2, &vb));
ASSERT_TRUE(
vc->CheckWrite(vb.get(), 0, block_info.block_size * last_block, block_info.block_size));
ASSERT_TRUE(
vc->CheckRead(vb.get(), 0, block_info.block_size * last_block, block_info.block_size));
// Try writing out of bounds -- check that we don't have access.
ASSERT_TRUE(CheckNoAccessBlock(vp_fd.get(), (slice_size / block_info.block_size) - 1, 2));
ASSERT_TRUE(CheckNoAccessBlock(vp_fd.get(), slice_size / block_info.block_size, 1));
// Attempt to access the next contiguous slice
ASSERT_EQ(
fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), 1, 1, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
// Now we can access the next slice...
ASSERT_TRUE(vc->CheckWrite(vb.get(), block_info.block_size,
block_info.block_size * (last_block + 1),
block_info.block_size));
ASSERT_TRUE(vc->CheckRead(vb.get(), block_info.block_size,
block_info.block_size * (last_block + 1), block_info.block_size));
// ... We can still access the previous slice...
ASSERT_TRUE(
vc->CheckRead(vb.get(), 0, block_info.block_size * last_block, block_info.block_size));
// ... And we can cross slices
ASSERT_TRUE(vc->CheckRead(vb.get(), 0, block_info.block_size * last_block,
block_info.block_size * 2));
}
ASSERT_EQ(close(vp_fd.release()), 0);
ASSERT_EQ(close(fd.release()), 0);
ASSERT_TRUE(FVMCheckSliceSize(fvm_driver, 64lu * (1 << 20)));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
// Test allocating and accessing multiple (3+) slices at once.
bool TestSliceAccessMany() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
// The size of a slice must be carefully constructed for this test
// so that we can hold multiple slices in memory without worrying
// about hitting resource limits.
const size_t kBlockSize = use_real_disk ? test_block_size : 512;
const size_t kBlocksPerSlice = 256;
const size_t kSliceSize = kBlocksPerSlice * kBlockSize;
ASSERT_EQ(StartFVMTest(kBlockSize, (1 << 20), kSliceSize, ramdisk_path, fvm_driver), 0);
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd);
volume_info_t volume_info;
ASSERT_EQ(fvm_query(fd.get(), &volume_info), ZX_OK);
ASSERT_EQ(volume_info.slice_size, kSliceSize);
// Allocate one VPart
alloc_req_t request;
memset(&request, 0, sizeof(request));
request.slice_count = 1;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
strcpy(request.name, kTestPartName1);
memcpy(request.type, kTestPartGUIDData, GUID_LEN);
fbl::unique_fd vp_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(vp_fd);
fzl::UnownedFdioCaller partition_caller(vp_fd.get());
zx::unowned_channel partition_channel(partition_caller.borrow_channel());
fuchsia_hardware_block_BlockInfo block_info;
zx_status_t status;
ASSERT_EQ(fuchsia_hardware_block_BlockGetInfo(partition_channel->get(), &status, &block_info),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(block_info.block_size, kBlockSize);
{
fbl::RefPtr<VmoClient> vc;
ASSERT_TRUE(VmoClient::Create(vp_fd.get(), &vc));
fbl::unique_ptr<VmoBuf> vb;
ASSERT_TRUE(VmoBuf::Create(vc, kSliceSize * 3, &vb));
// Access the first slice
ASSERT_TRUE(vc->CheckWrite(vb.get(), 0, 0, kSliceSize));
ASSERT_TRUE(vc->CheckRead(vb.get(), 0, 0, kSliceSize));
// Try writing out of bounds -- check that we don't have access.
ASSERT_TRUE(CheckNoAccessBlock(vp_fd.get(), kBlocksPerSlice - 1, 2));
ASSERT_TRUE(CheckNoAccessBlock(vp_fd.get(), kBlocksPerSlice, 1));
// Attempt to access the next contiguous slices
uint64_t offset = 1;
uint64_t length = 2;
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), offset,
length, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
// Now we can access the next slices...
ASSERT_TRUE(vc->CheckWrite(vb.get(), kSliceSize, kSliceSize, 2 * kSliceSize));
ASSERT_TRUE(vc->CheckRead(vb.get(), kSliceSize, kSliceSize, 2 * kSliceSize));
// ... We can still access the previous slice...
ASSERT_TRUE(vc->CheckRead(vb.get(), 0, 0, kSliceSize));
// ... And we can cross slices for reading.
ASSERT_TRUE(vc->CheckRead(vb.get(), 0, 0, 3 * kSliceSize));
// Also, we can cross slices for writing.
ASSERT_TRUE(vc->CheckWrite(vb.get(), 0, 0, 3 * kSliceSize));
ASSERT_TRUE(vc->CheckRead(vb.get(), 0, 0, 3 * kSliceSize));
// Additionally, we can access "parts" of slices in a multi-slice
// operation. Here, read one block into the first slice, and read
// up to the last block in the final slice.
ASSERT_TRUE(vc->CheckWrite(vb.get(), 0, kBlockSize, 3 * kSliceSize - 2 * kBlockSize));
ASSERT_TRUE(vc->CheckRead(vb.get(), 0, kBlockSize, 3 * kSliceSize - 2 * kBlockSize));
}
ASSERT_EQ(close(vp_fd.release()), 0);
ASSERT_EQ(close(fd.release()), 0);
ASSERT_TRUE(FVMCheckSliceSize(fvm_driver, kSliceSize));
ASSERT_TRUE(ValidateFVM(ramdisk_path));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
// Test allocating and accessing slices which are allocated
// virtually contiguously (they appear sequential to the client) but are
// actually noncontiguous on the FVM partition.
bool TestSliceAccessNonContiguousPhysical() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
// This takes 130sec on a fast desktop, target x86 non-kvm qemu.
// On the bots for arm it times out after 200sec.
// For now just disable the timeout. An alternative is to make it
// a large test, but then it won't get run for CQ/CI.
unittest_cancel_timeout();
ASSERT_EQ(StartFVMTest(512, 1 << 20, 8lu * (1 << 20), ramdisk_path, fvm_driver), 0);
const size_t kDiskSize = use_real_disk ? test_block_size * test_block_count : 512 * (1 << 20);
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd);
volume_info_t volume_info;
ASSERT_EQ(fvm_query(fd.get(), &volume_info), ZX_OK);
size_t slice_size = volume_info.slice_size;
alloc_req_t request;
memset(&request, 0, sizeof(request));
request.slice_count = 1;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
constexpr size_t kNumVParts = 3;
typedef struct vdata {
fbl::unique_fd fd;
uint8_t guid[GUID_LEN];
char name[32];
size_t slices_used;
} vdata_t;
vdata_t vparts[kNumVParts] = {
{fbl::unique_fd(), GUID_TEST_DATA_VALUE, "data", request.slice_count},
{fbl::unique_fd(), GUID_TEST_BLOB_VALUE, "blob", request.slice_count},
{fbl::unique_fd(), GUID_TEST_SYS_VALUE, "sys", request.slice_count},
};
for (size_t i = 0; i < fbl::count_of(vparts); i++) {
strcpy(request.name, vparts[i].name);
memcpy(request.type, vparts[i].guid, GUID_LEN);
vparts[i].fd.reset(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(vparts[i].fd);
}
fzl::UnownedFdioCaller partition_caller(vparts[0].fd.get());
zx::unowned_channel partition_channel(partition_caller.borrow_channel());
fuchsia_hardware_block_BlockInfo block_info;
zx_status_t status;
ASSERT_EQ(fuchsia_hardware_block_BlockGetInfo(partition_channel->get(), &status, &block_info),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
size_t usable_slices_per_vpart = fvm::UsableSlicesCount(kDiskSize, slice_size) / kNumVParts;
size_t i = 0;
while (vparts[i].slices_used < usable_slices_per_vpart) {
int vfd = vparts[i].fd.get();
// This is the last 'accessible' block.
size_t last_block = (vparts[i].slices_used * (slice_size / block_info.block_size)) - 1;
fbl::RefPtr<VmoClient> vc;
ASSERT_TRUE(VmoClient::Create(vfd, &vc));
fbl::unique_ptr<VmoBuf> vb;
ASSERT_TRUE(VmoBuf::Create(vc, block_info.block_size * 2, &vb));
ASSERT_TRUE(
vc->CheckWrite(vb.get(), 0, block_info.block_size * last_block, block_info.block_size));
ASSERT_TRUE(
vc->CheckRead(vb.get(), 0, block_info.block_size * last_block, block_info.block_size));
// Try writing out of bounds -- check that we don't have access.
ASSERT_TRUE(CheckNoAccessBlock(vfd, last_block, 2));
ASSERT_TRUE(CheckNoAccessBlock(vfd, last_block + 1, 1));
// Attempt to access the next contiguous slice
fzl::UnownedFdioCaller partition_caller(vfd);
zx::unowned_channel partition_channel(partition_caller.borrow_channel());
uint64_t offset = vparts[i].slices_used;
uint64_t length = 1;
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), offset,
length, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
// Now we can access the next slice...
ASSERT_TRUE(vc->CheckWrite(vb.get(), block_info.block_size,
block_info.block_size * (last_block + 1),
block_info.block_size));
ASSERT_TRUE(vc->CheckRead(vb.get(), block_info.block_size,
block_info.block_size * (last_block + 1), block_info.block_size));
// ... We can still access the previous slice...
ASSERT_TRUE(
vc->CheckRead(vb.get(), 0, block_info.block_size * last_block, block_info.block_size));
// ... And we can cross slices
ASSERT_TRUE(vc->CheckRead(vb.get(), 0, block_info.block_size * last_block,
block_info.block_size * 2));
vparts[i].slices_used++;
i = (i + 1) % kNumVParts;
}
for (size_t i = 0; i < kNumVParts; i++) {
printf("Testing multi-slice operations on vslice %lu\n", i);
// We need at least five slices, so we can access three "middle"
// slices and jitter to test off-by-one errors.
ASSERT_GE(vparts[i].slices_used, 5);
{
fbl::RefPtr<VmoClient> vc;
ASSERT_TRUE(VmoClient::Create(vparts[i].fd.get(), &vc));
fbl::unique_ptr<VmoBuf> vb;
ASSERT_TRUE(VmoBuf::Create(vc, slice_size * 4, &vb));
// Try accessing 3 noncontiguous slices at once, with the
// addition of "off by one block".
size_t dev_off_start = slice_size - block_info.block_size;
size_t dev_off_end = slice_size + block_info.block_size;
size_t len_start = slice_size * 3 - block_info.block_size;
size_t len_end = slice_size * 3 + block_info.block_size;
// Test a variety of:
// Starting device offsets,
size_t bsz = block_info.block_size;
for (size_t dev_off = dev_off_start; dev_off <= dev_off_end; dev_off += bsz) {
printf(" Testing non-contiguous write/read starting at offset: %zu\n", dev_off);
// Operation lengths,
for (size_t len = len_start; len <= len_end; len += bsz) {
printf(" Testing operation of length: %zu\n", len);
// and starting VMO offsets
for (size_t vmo_off = 0; vmo_off < 3 * bsz; vmo_off += bsz) {
// Try writing & reading the entire section (multiple
// slices) at once.
ASSERT_TRUE(vc->CheckWrite(vb.get(), vmo_off, dev_off, len));
ASSERT_TRUE(vc->CheckRead(vb.get(), vmo_off, dev_off, len));
// Try reading the section one slice at a time.
// The results should be the same.
size_t sub_off = 0;
size_t sub_len = slice_size - (dev_off % slice_size);
while (sub_off < len) {
ASSERT_TRUE(vc->CheckRead(vb.get(), vmo_off + sub_off,
dev_off + sub_off, sub_len));
sub_off += sub_len;
sub_len = fbl::min(slice_size, len - sub_off);
}
}
}
}
}
ASSERT_EQ(close(vparts[i].fd.release()), 0);
}
ASSERT_EQ(close(fd.release()), 0);
ASSERT_TRUE(FVMCheckSliceSize(fvm_driver, slice_size));
ASSERT_TRUE(ValidateFVM(ramdisk_path));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
// Test allocating and accessing slices which are
// allocated noncontiguously from the client's perspective.
bool TestSliceAccessNonContiguousVirtual() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
ASSERT_EQ(StartFVMTest(512, 1 << 20, 64lu * (1 << 20), ramdisk_path, fvm_driver), 0);
const size_t kDiskSize = 512 * (1 << 20);
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd);
volume_info_t volume_info;
ASSERT_EQ(fvm_query(fd.get(), &volume_info), ZX_OK);
size_t slice_size = volume_info.slice_size;
alloc_req_t request;
memset(&request, 0, sizeof(request));
request.slice_count = 1;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
constexpr size_t kNumVParts = 3;
typedef struct vdata {
fbl::unique_fd fd;
uint8_t guid[GUID_LEN];
char name[32];
size_t slices_used;
size_t last_slice;
} vdata_t;
vdata_t vparts[kNumVParts] = {
{fbl::unique_fd(), GUID_TEST_DATA_VALUE, "data", request.slice_count, request.slice_count},
{fbl::unique_fd(), GUID_TEST_BLOB_VALUE, "blob", request.slice_count, request.slice_count},
{fbl::unique_fd(), GUID_TEST_SYS_VALUE, "sys", request.slice_count, request.slice_count},
};
for (size_t i = 0; i < fbl::count_of(vparts); i++) {
strcpy(request.name, vparts[i].name);
memcpy(request.type, vparts[i].guid, GUID_LEN);
vparts[i].fd.reset(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(vparts[i].fd);
}
fzl::UnownedFdioCaller partition_caller(vparts[0].fd.get());
zx::unowned_channel partition_channel(partition_caller.borrow_channel());
fuchsia_hardware_block_BlockInfo block_info;
zx_status_t status;
ASSERT_EQ(fuchsia_hardware_block_BlockGetInfo(partition_channel->get(), &status, &block_info),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
size_t usable_slices_per_vpart = fvm::UsableSlicesCount(kDiskSize, slice_size) / kNumVParts;
size_t i = 0;
while (vparts[i].slices_used < usable_slices_per_vpart) {
int vfd = vparts[i].fd.get();
// This is the last 'accessible' block.
size_t last_block = (vparts[i].last_slice * (slice_size / block_info.block_size)) - 1;
ASSERT_TRUE(CheckWriteReadBlock(vfd, last_block, 1));
// Try writing out of bounds -- check that we don't have access.
ASSERT_TRUE(CheckNoAccessBlock(vfd, last_block, 2));
ASSERT_TRUE(CheckNoAccessBlock(vfd, last_block + 1, 1));
// Attempt to access a non-contiguous slice
fzl::UnownedFdioCaller partition_caller(vfd);
zx::unowned_channel partition_channel(partition_caller.borrow_channel());
uint64_t offset = vparts[i].last_slice + 2;
uint64_t length = 1;
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), offset,
length, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
// We still don't have access to the next slice...
ASSERT_TRUE(CheckNoAccessBlock(vfd, last_block, 2));
ASSERT_TRUE(CheckNoAccessBlock(vfd, last_block + 1, 1));
// But we have access to the slice we asked for!
size_t requested_block = (offset * slice_size) / block_info.block_size;
ASSERT_TRUE(CheckWriteReadBlock(vfd, requested_block, 1));
vparts[i].slices_used++;
vparts[i].last_slice = offset;
i = (i + 1) % kNumVParts;
}
for (size_t i = 0; i < kNumVParts; i++) {
ASSERT_EQ(close(vparts[i].fd.release()), 0);
}
ASSERT_EQ(close(fd.release()), 0);
ASSERT_TRUE(FVMCheckSliceSize(fvm_driver, slice_size));
ASSERT_TRUE(ValidateFVM(ramdisk_path));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
// Test that the FVM driver actually persists updates.
bool TestPersistenceSimple() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
constexpr uint64_t kBlkSize = 512;
constexpr uint64_t kBlkCount = 1 << 20;
constexpr uint64_t kSliceSize = 64 * (1 << 20);
ASSERT_EQ(StartFVMTest(kBlkSize, kBlkCount, kSliceSize, ramdisk_path, fvm_driver), 0);
constexpr uint64_t kDiskSize = kBlkSize * kBlkCount;
size_t slices_left = fvm::UsableSlicesCount(kDiskSize, kSliceSize);
const uint64_t kSliceCount = slices_left;
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd);
volume_info_t volume_info;
ASSERT_EQ(fvm_query(fd.get(), &volume_info), ZX_OK);
size_t slice_size = volume_info.slice_size;
// Allocate one VPart
alloc_req_t request;
memset(&request, 0, sizeof(request));
request.slice_count = 1;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
strcpy(request.name, kTestPartName1);
memcpy(request.type, kTestPartGUIDData, GUID_LEN);
fbl::unique_fd vp_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(vp_fd);
slices_left--;
fzl::UnownedFdioCaller partition_caller(vp_fd.get());
zx::unowned_channel partition_channel(partition_caller.borrow_channel());
// Check that the name matches what we provided
char name[fvm::kMaxVPartitionNameLength + 1];
zx_status_t status;
size_t actual;
ASSERT_EQ(fuchsia_hardware_block_partition_PartitionGetName(partition_channel->get(), &status,
name, sizeof(name), &actual),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
name[actual] = '\0';
ASSERT_EQ(memcmp(name, kTestPartName1, strlen(kTestPartName1)), 0);
fuchsia_hardware_block_BlockInfo block_info;
ASSERT_EQ(fuchsia_hardware_block_BlockGetInfo(partition_channel->get(), &status, &block_info),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
fbl::unique_ptr<uint8_t[]> buf(new uint8_t[block_info.block_size * 2]);
// Check that we can read from / write to it
ASSERT_TRUE(CheckWrite(vp_fd.get(), 0, block_info.block_size, buf.get()));
ASSERT_TRUE(CheckRead(vp_fd.get(), 0, block_info.block_size, buf.get()));
ASSERT_EQ(close(vp_fd.release()), 0);
// Check that it still exists after rebinding the driver
const partition_entry_t entries[] = {
{kTestPartName1, 1},
};
fd = FVMRebind(std::move(fd), ramdisk_path, entries, 1);
ASSERT_TRUE(fd, "Failed to rebind FVM driver");
vp_fd.reset(open_partition(kTestUniqueGUID, kTestPartGUIDData, 0, nullptr));
ASSERT_TRUE(vp_fd, "Couldn't re-open Data VPart");
ASSERT_TRUE(CheckRead(vp_fd.get(), 0, block_info.block_size, buf.get()));
// Try extending the vpartition, and checking that the extension persists.
// This is the last 'accessible' block.
size_t last_block = (slice_size / block_info.block_size) - 1;
ASSERT_TRUE(CheckWrite(vp_fd.get(), block_info.block_size * last_block, block_info.block_size,
&buf[0]));
ASSERT_TRUE(
CheckRead(vp_fd.get(), block_info.block_size * last_block, block_info.block_size, &buf[0]));
// Try writing out of bounds -- check that we don't have access.
ASSERT_TRUE(CheckNoAccessBlock(vp_fd.get(), (slice_size / block_info.block_size) - 1, 2));
ASSERT_TRUE(CheckNoAccessBlock(vp_fd.get(), slice_size / block_info.block_size, 1));
partition_caller.reset(vp_fd.get());
partition_channel = zx::unowned_channel(partition_caller.borrow_channel());
uint64_t offset = 1;
uint64_t length = 1;
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), offset, length,
&status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
slices_left--;
// Rebind the FVM driver, check the extension has succeeded.
fd = FVMRebind(std::move(fd), ramdisk_path, entries, 1);
ASSERT_TRUE(fd, "Failed to rebind FVM driver");
partition_caller.reset(vp_fd.get());
partition_channel = zx::unowned_channel(partition_caller.borrow_channel());
// Now we can access the next slice...
ASSERT_TRUE(CheckWrite(vp_fd.get(), block_info.block_size * (last_block + 1),
block_info.block_size, &buf[block_info.block_size]));
ASSERT_TRUE(CheckRead(vp_fd.get(), block_info.block_size * (last_block + 1),
block_info.block_size, &buf[block_info.block_size]));
// ... We can still access the previous slice...
ASSERT_TRUE(
CheckRead(vp_fd.get(), block_info.block_size * last_block, block_info.block_size, &buf[0]));
// ... And we can cross slices
ASSERT_TRUE(CheckRead(vp_fd.get(), block_info.block_size * last_block,
block_info.block_size * 2, &buf[0]));
// Try allocating the rest of the slices, rebinding, and ensuring
// that the size stays updated.
ASSERT_EQ(fuchsia_hardware_block_BlockGetInfo(partition_channel->get(), &status, &block_info),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(block_info.block_count * block_info.block_size, kSliceSize * 2);
offset = 2;
length = slices_left;
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), offset, length,
&status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(fuchsia_hardware_block_BlockGetInfo(partition_channel->get(), &status, &block_info),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(block_info.block_count * block_info.block_size, kSliceSize * kSliceCount);
ASSERT_EQ(close(vp_fd.release()), 0);
fd = FVMRebind(std::move(fd), ramdisk_path, entries, 1);
ASSERT_TRUE(fd, "Failed to rebind FVM driver");
vp_fd.reset(open_partition(kTestUniqueGUID, kTestPartGUIDData, 0, nullptr));
ASSERT_TRUE(vp_fd, "Couldn't re-open Data VPart");
partition_caller.reset(vp_fd.get());
partition_channel = zx::unowned_channel(partition_caller.borrow_channel());
ASSERT_EQ(fuchsia_hardware_block_BlockGetInfo(partition_channel->get(), &status, &block_info),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(block_info.block_count * block_info.block_size, kSliceSize * kSliceCount);
ASSERT_EQ(close(vp_fd.release()), 0);
ASSERT_EQ(close(fd.release()), 0);
ASSERT_TRUE(FVMCheckSliceSize(fvm_driver, 64lu * (1 << 20)));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
bool CorruptMountHelper(const char* partition_path, disk_format_t disk_format,
const query_request_t& query_request) {
BEGIN_HELPER;
// Format the VPart as |disk_format|.
ASSERT_EQ(mkfs(partition_path, disk_format, launch_stdio_sync, &default_mkfs_options), ZX_OK);
fbl::unique_fd vp_fd(open_partition(kTestUniqueGUID, kTestPartGUIDData, 0, nullptr));
ASSERT_TRUE(vp_fd);
fuchsia_hardware_block_volume_VsliceRange
ranges[fuchsia_hardware_block_volume_MAX_SLICE_REQUESTS];
zx_status_t status;
size_t actual_ranges_count;
// Check initial slice allocation.
//
// Avoid keping the "FdioCaller" in-scope across mount, as the caller prevents
// the file descriptor from being transferred.
{
fzl::UnownedFdioCaller partition_caller(vp_fd.get());
zx::unowned_channel partition_channel(partition_caller.borrow_channel());
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeQuerySlices(
partition_channel->get(), query_request.vslice_start, query_request.count,
&status, ranges, &actual_ranges_count),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(query_request.count, actual_ranges_count);
for (unsigned i = 0; i < actual_ranges_count; i++) {
ASSERT_TRUE(ranges[i].allocated);
ASSERT_EQ(ranges[i].count, 1);
}
// Manually shrink slices so FVM will differ from the partition.
uint64_t offset = query_request.vslice_start[0];
uint64_t length = 1;
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeShrink(partition_channel->get(), offset,
length, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
// Check slice allocation after manual grow/shrink
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeQuerySlices(
partition_channel->get(), query_request.vslice_start, query_request.count,
&status, ranges, &actual_ranges_count),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(query_request.count, actual_ranges_count);
ASSERT_FALSE(ranges[0].allocated);
ASSERT_EQ(ranges[0].count, query_request.vslice_start[1] - query_request.vslice_start[0]);
}
// Try to mount the VPart.
ASSERT_NE(
mount(vp_fd.release(), kMountPath, disk_format, &default_mount_options, launch_stdio_async),
ZX_OK);
{
vp_fd.reset(open_partition(kTestUniqueGUID, kTestPartGUIDData, 0, nullptr));
ASSERT_TRUE(vp_fd);
fzl::UnownedFdioCaller partition_caller(vp_fd.get());
zx::unowned_channel partition_channel(partition_caller.borrow_channel());
// Grow back the slice we shrunk earlier.
uint64_t offset = query_request.vslice_start[0];
uint64_t length = 1;
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), offset,
length, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
// Verify grow was successful.
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeQuerySlices(
partition_channel->get(), query_request.vslice_start, query_request.count,
&status, ranges, &actual_ranges_count),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(query_request.count, actual_ranges_count);
ASSERT_TRUE(ranges[0].allocated);
ASSERT_EQ(ranges[0].count, 1);
// Now extend all extents by some number of additional slices.
for (unsigned i = 0; i < query_request.count; i++) {
uint64_t offset = query_request.vslice_start[i] + 1;
uint64_t length = query_request.count - i;
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), offset,
length, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
}
// Verify that the extensions were successful.
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeQuerySlices(
partition_channel->get(), query_request.vslice_start, query_request.count,
&status, ranges, &actual_ranges_count),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(query_request.count, actual_ranges_count);
for (unsigned i = 0; i < query_request.count; i++) {
ASSERT_TRUE(ranges[i].allocated);
ASSERT_EQ(ranges[i].count, 1 + query_request.count - i);
}
}
// Try mount again.
ASSERT_EQ(
mount(vp_fd.release(), kMountPath, disk_format, &default_mount_options, launch_stdio_async),
ZX_OK);
ASSERT_EQ(umount(kMountPath), ZX_OK);
vp_fd.reset(open_partition(kTestUniqueGUID, kTestPartGUIDData, 0, nullptr));
ASSERT_TRUE(vp_fd);
fzl::UnownedFdioCaller partition_caller(vp_fd.get());
zx::unowned_channel partition_channel(partition_caller.borrow_channel());
// Verify that slices were fixed on mount.
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeQuerySlices(
partition_channel->get(), query_request.vslice_start, query_request.count,
&status, ranges, &actual_ranges_count),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(query_request.count, actual_ranges_count);
for (unsigned i = 0; i < query_request.count; i++) {
ASSERT_TRUE(ranges[i].allocated);
ASSERT_EQ(ranges[i].count, 1);
}
END_HELPER;
}
bool TestCorruptMount() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
size_t slice_size = 1 << 20;
ASSERT_EQ(StartFVMTest(512, 1 << 20, slice_size, ramdisk_path, fvm_driver), 0);
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd);
volume_info_t volume_info;
ASSERT_EQ(fvm_query(fd.get(), &volume_info), ZX_OK);
ASSERT_EQ(slice_size, volume_info.slice_size);
// Allocate one VPart
alloc_req_t request;
memset(&request, 0, sizeof(request));
request.slice_count = 1;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
strcpy(request.name, kTestPartName1);
memcpy(request.type, kTestPartGUIDData, GUID_LEN);
fbl::unique_fd vp_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(vp_fd);
ASSERT_EQ(close(vp_fd.release()), 0);
ASSERT_EQ(mkdir(kMountPath, 0666), 0);
char partition_path[PATH_MAX];
snprintf(partition_path, sizeof(partition_path), "%s/%s-p-1/block", fvm_driver, kTestPartName1);
size_t kMinfsBlocksPerSlice = slice_size / minfs::kMinfsBlockSize;
query_request_t query_request;
query_request.count = 4;
query_request.vslice_start[0] = minfs::kFVMBlockInodeBmStart / kMinfsBlocksPerSlice;
query_request.vslice_start[1] = minfs::kFVMBlockDataBmStart / kMinfsBlocksPerSlice;
query_request.vslice_start[2] = minfs::kFVMBlockInodeStart / kMinfsBlocksPerSlice;
query_request.vslice_start[3] = minfs::kFVMBlockDataStart / kMinfsBlocksPerSlice;
// Run the test for Minfs.
ASSERT_TRUE(CorruptMountHelper(partition_path, DISK_FORMAT_MINFS, query_request));
size_t kBlobfsBlocksPerSlice = slice_size / blobfs::kBlobfsBlockSize;
query_request.count = 3;
query_request.vslice_start[0] = blobfs::kFVMBlockMapStart / kBlobfsBlocksPerSlice;
query_request.vslice_start[1] = blobfs::kFVMNodeMapStart / kBlobfsBlocksPerSlice;
query_request.vslice_start[2] = blobfs::kFVMDataStart / kBlobfsBlocksPerSlice;
// Run the test for Blobfs.
ASSERT_TRUE(CorruptMountHelper(partition_path, DISK_FORMAT_BLOBFS, query_request));
// Clean up
ASSERT_EQ(rmdir(kMountPath), 0);
ASSERT_EQ(close(fd.release()), 0);
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
bool TestVPartitionUpgrade() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
constexpr uint64_t kBlkSize = 512;
constexpr uint64_t kBlkCount = 1 << 20;
constexpr uint64_t kSliceSize = 64 * (1 << 20);
ASSERT_EQ(StartFVMTest(kBlkSize, kBlkCount, kSliceSize, ramdisk_path, fvm_driver), 0);
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd, "Couldn't open Volume Manager");
fzl::FdioCaller volume_manager(std::move(fd));
// Short-hand for asking if we can open a partition.
auto openable = [](const uint8_t* instanceGUID, const uint8_t* typeGUID) {
fbl::unique_fd fd(open_partition(instanceGUID, typeGUID, 0, nullptr));
return fd.is_valid();
};
// Allocate two VParts, one active, and one inactive.
alloc_req_t request;
memset(&request, 0, sizeof(request));
request.flags = fuchsia_hardware_block_volume_AllocatePartitionFlagInactive;
request.slice_count = 1;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
strcpy(request.name, kTestPartName1);
memcpy(request.type, kTestPartGUIDData, GUID_LEN);
fbl::unique_fd vp_fd(fvm_allocate_partition(volume_manager.fd().get(), &request));
ASSERT_TRUE(vp_fd, "Couldn't open Volume");
ASSERT_EQ(close(vp_fd.release()), 0);
request.flags = 0;
memcpy(request.guid, kTestUniqueGUID2, GUID_LEN);
strcpy(request.name, kTestPartName2);
vp_fd.reset(fvm_allocate_partition(volume_manager.fd().get(), &request));
ASSERT_TRUE(vp_fd, "Couldn't open volume");
ASSERT_EQ(close(vp_fd.release()), 0);
const partition_entry_t entries[] = {
{kTestPartName2, 2},
};
fd = FVMRebind(volume_manager.release(), ramdisk_path, entries, 1);
ASSERT_TRUE(fd, "Failed to rebind FVM driver");
volume_manager.reset(std::move(fd));
// We shouldn't be able to re-open the inactive partition...
ASSERT_FALSE(openable(kTestUniqueGUID, kTestPartGUIDData));
// ... but we SHOULD be able to re-open the active partition.
ASSERT_TRUE(openable(kTestUniqueGUID2, kTestPartGUIDData));
// Try to upgrade the partition (from GUID2 --> GUID)
request.flags = fuchsia_hardware_block_volume_AllocatePartitionFlagInactive;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
strcpy(request.name, kTestPartName1);
fbl::unique_fd new_fd(fvm_allocate_partition(volume_manager.fd().get(), &request));
ASSERT_TRUE(new_fd, "Couldn't open new volume");
ASSERT_EQ(close(new_fd.release()), 0);
ASSERT_TRUE(Upgrade(volume_manager, kTestUniqueGUID2, kTestUniqueGUID, ZX_OK));
// After upgrading, we should be able to open both partitions
ASSERT_TRUE(openable(kTestUniqueGUID, kTestPartGUIDData));
ASSERT_TRUE(openable(kTestUniqueGUID2, kTestPartGUIDData));
// Rebind the FVM driver, check the upgrade has succeeded.
// The original (GUID2) should be deleted, and the new partition (GUID)
// should exist.
const partition_entry_t upgraded_entries[] = {
{kTestPartName1, 1},
};
fd = FVMRebind(volume_manager.release(), ramdisk_path, upgraded_entries, 1);
ASSERT_TRUE(fd, "Failed to rebind FVM driver");
volume_manager.reset(std::move(fd));
ASSERT_TRUE(openable(kTestUniqueGUID, kTestPartGUIDData));
ASSERT_FALSE(openable(kTestUniqueGUID2, kTestPartGUIDData));
// Try upgrading when the "new" version doesn't exist.
// (It should return an error and have no noticable effect).
ASSERT_TRUE(Upgrade(volume_manager, kTestUniqueGUID, kTestUniqueGUID2, ZX_ERR_NOT_FOUND));
fd = FVMRebind(volume_manager.release(), ramdisk_path, upgraded_entries, 1);
ASSERT_TRUE(fd, "Failed to rebind FVM driver");
volume_manager.reset(std::move(fd));
ASSERT_TRUE(openable(kTestUniqueGUID, kTestPartGUIDData));
ASSERT_FALSE(openable(kTestUniqueGUID2, kTestPartGUIDData));
// Try upgrading when the "old" version doesn't exist.
request.flags = fuchsia_hardware_block_volume_AllocatePartitionFlagInactive;
memcpy(request.guid, kTestUniqueGUID2, GUID_LEN);
strcpy(request.name, kTestPartName2);
new_fd.reset(fvm_allocate_partition(volume_manager.fd().get(), &request));
ASSERT_TRUE(new_fd, "Couldn't open volume");
ASSERT_EQ(close(new_fd.release()), 0);
uint8_t fake_guid[GUID_LEN];
memset(fake_guid, 0, GUID_LEN);
ASSERT_TRUE(Upgrade(volume_manager, fake_guid, kTestUniqueGUID2, ZX_OK));
const partition_entry_t upgraded_entries_both[] = {
{kTestPartName1, 1},
{kTestPartName2, 2},
};
fd = FVMRebind(volume_manager.release(), ramdisk_path, upgraded_entries_both, 2);
ASSERT_TRUE(fd, "Failed to rebind FVM driver");
volume_manager.reset(std::move(fd));
// We should be able to open both partitions again.
ASSERT_TRUE(openable(kTestUniqueGUID, kTestPartGUIDData));
ASSERT_TRUE(openable(kTestUniqueGUID2, kTestPartGUIDData));
// Destroy and reallocate the first partition as inactive.
vp_fd.reset(open_partition(kTestUniqueGUID, kTestPartGUIDData, 0, nullptr));
ASSERT_TRUE(vp_fd, "Couldn't open volume");
fzl::FdioCaller partition_caller(std::move(vp_fd));
zx_status_t status;
ASSERT_EQ(
fuchsia_hardware_block_volume_VolumeDestroy(partition_caller.borrow_channel(), &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
partition_caller.reset();
request.flags = fuchsia_hardware_block_volume_AllocatePartitionFlagInactive;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
strcpy(request.name, kTestPartName1);
new_fd.reset(fvm_allocate_partition(volume_manager.fd().get(), &request));
ASSERT_TRUE(new_fd, "Couldn't open volume");
ASSERT_EQ(close(new_fd.release()), 0);
// Upgrade the partition with old_guid == new_guid.
// This should activate the partition.
ASSERT_TRUE(Upgrade(volume_manager, kTestUniqueGUID, kTestUniqueGUID, ZX_OK));
fd = FVMRebind(volume_manager.release(), ramdisk_path, upgraded_entries_both, 2);
ASSERT_TRUE(fd, "Failed to rebind FVM driver");
volume_manager.reset(std::move(fd));
// We should be able to open both partitions again.
ASSERT_TRUE(openable(kTestUniqueGUID, kTestPartGUIDData));
ASSERT_TRUE(openable(kTestUniqueGUID2, kTestPartGUIDData));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
// Test that the FVM driver can mount filesystems.
bool TestMounting() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
ASSERT_EQ(StartFVMTest(512, 1 << 20, 64lu * (1 << 20), ramdisk_path, fvm_driver), 0);
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd);
volume_info_t volume_info;
ASSERT_EQ(fvm_query(fd.get(), &volume_info), ZX_OK);
size_t slice_size = volume_info.slice_size;
// Allocate one VPart
alloc_req_t request;
request.slice_count = 1;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
strcpy(request.name, kTestPartName1);
memcpy(request.type, kTestPartGUIDData, GUID_LEN);
fbl::unique_fd vp_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(vp_fd);
// Format the VPart as minfs
char partition_path[PATH_MAX];
snprintf(partition_path, sizeof(partition_path), "%s/%s-p-1/block", fvm_driver, kTestPartName1);
ASSERT_EQ(mkfs(partition_path, DISK_FORMAT_MINFS, launch_stdio_sync, &default_mkfs_options),
ZX_OK);
// Mount the VPart
ASSERT_EQ(mkdir(kMountPath, 0666), 0);
ASSERT_EQ(mount(vp_fd.release(), kMountPath, DISK_FORMAT_MINFS, &default_mount_options,
launch_stdio_async),
ZX_OK);
// Verify that the mount was successful.
fbl::unique_fd rootfd(open(kMountPath, O_RDONLY | O_DIRECTORY));
ASSERT_TRUE(rootfd);
zx_status_t status;
filesystem_info_t filesystem_info;
fzl::FdioCaller caller(std::move(rootfd));
ASSERT_EQ(fuchsia_io_DirectoryAdminQueryFilesystem(caller.borrow_channel(), &status,
&filesystem_info),
ZX_OK);
const char* kFsName = "minfs";
const char* name = reinterpret_cast<const char*>(filesystem_info.name);
ASSERT_EQ(strncmp(name, kFsName, strlen(kFsName)), 0, "Unexpected filesystem mounted");
// Verify that MinFS does not try to use more of the VPartition than
// was originally allocated.
ASSERT_LE(filesystem_info.total_bytes, slice_size * request.slice_count);
// Clean up.
ASSERT_EQ(umount(kMountPath), ZX_OK);
ASSERT_EQ(rmdir(kMountPath), 0);
ASSERT_EQ(close(fd.release()), 0);
ASSERT_TRUE(FVMCheckSliceSize(fvm_driver, 64lu * (1 << 20)));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
// Test that FVM-aware filesystem can be reformatted.
bool TestMkfs() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
ASSERT_EQ(StartFVMTest(512, 1 << 20, 64lu * (1 << 20), ramdisk_path, fvm_driver), 0);
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd);
volume_info_t volume_info;
ASSERT_EQ(fvm_query(fd.get(), &volume_info), ZX_OK);
size_t slice_size = volume_info.slice_size;
// Allocate one VPart.
alloc_req_t request;
request.slice_count = 1;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
strcpy(request.name, kTestPartName1);
memcpy(request.type, kTestPartGUIDData, GUID_LEN);
fbl::unique_fd vp_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(vp_fd);
// Format the VPart as minfs.
char partition_path[PATH_MAX];
snprintf(partition_path, sizeof(partition_path), "%s/%s-p-1/block", fvm_driver, kTestPartName1);
ASSERT_EQ(mkfs(partition_path, DISK_FORMAT_MINFS, launch_stdio_sync, &default_mkfs_options),
ZX_OK);
// Format it as MinFS again, even though it is already formatted.
ASSERT_EQ(mkfs(partition_path, DISK_FORMAT_MINFS, launch_stdio_sync, &default_mkfs_options),
ZX_OK);
// Now try reformatting as blobfs.
ASSERT_EQ(mkfs(partition_path, DISK_FORMAT_BLOBFS, launch_stdio_sync, &default_mkfs_options),
ZX_OK);
// Demonstrate that mounting as minfs will fail, but mounting as blobfs
// is successful.
ASSERT_EQ(mkdir(kMountPath, 0666), 0);
ASSERT_NE(mount(vp_fd.release(), kMountPath, DISK_FORMAT_MINFS, &default_mount_options,
launch_stdio_sync),
ZX_OK);
vp_fd.reset(open(partition_path, O_RDWR));
ASSERT_TRUE(vp_fd);
ASSERT_EQ(mount(vp_fd.release(), kMountPath, DISK_FORMAT_BLOBFS, &default_mount_options,
launch_stdio_async),
ZX_OK);
ASSERT_EQ(umount(kMountPath), ZX_OK);
// ... and reformat back to MinFS again.
ASSERT_EQ(mkfs(partition_path, DISK_FORMAT_MINFS, launch_stdio_sync, &default_mkfs_options),
ZX_OK);
// Mount the VPart.
vp_fd.reset(open(partition_path, O_RDWR));
ASSERT_TRUE(vp_fd);
ASSERT_EQ(mount(vp_fd.release(), kMountPath, DISK_FORMAT_MINFS, &default_mount_options,
launch_stdio_async),
ZX_OK);
// Verify that the mount was successful.
fbl::unique_fd rootfd(open(kMountPath, O_RDONLY | O_DIRECTORY));
ASSERT_TRUE(rootfd);
zx_status_t status;
filesystem_info_t filesystem_info;
fzl::FdioCaller caller(std::move(rootfd));
ASSERT_EQ(fuchsia_io_DirectoryAdminQueryFilesystem(caller.borrow_channel(), &status,
&filesystem_info),
ZX_OK);
const char* kFsName = "minfs";
const char* name = reinterpret_cast<const char*>(filesystem_info.name);
ASSERT_EQ(strncmp(name, kFsName, strlen(kFsName)), 0, "Unexpected filesystem mounted");
// Verify that MinFS does not try to use more of the VPartition than
// was originally allocated.
ASSERT_LE(filesystem_info.total_bytes, slice_size * request.slice_count);
// Clean up.
ASSERT_EQ(umount(kMountPath), ZX_OK);
ASSERT_EQ(rmdir(kMountPath), 0);
ASSERT_TRUE(FVMCheckSliceSize(fvm_driver, 64lu * (1 << 20)));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
// Test that the FVM can recover when one copy of
// metadata becomes corrupt.
bool TestCorruptionOk() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
size_t kDiskSize = use_real_disk ? test_block_size * test_block_count : 512 * (1 << 20);
ASSERT_EQ(StartFVMTest(512, 1 << 20, 64lu * (1 << 20), ramdisk_path, fvm_driver), 0);
fbl::unique_fd ramdisk_fd(open(ramdisk_path, O_RDWR));
ASSERT_TRUE(ramdisk_fd);
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd);
volume_info_t volume_info;
ASSERT_EQ(fvm_query(fd.get(), &volume_info), ZX_OK);
size_t slice_size = volume_info.slice_size;
// Allocate one VPart (writes to backup)
alloc_req_t request;
memset(&request, 0, sizeof(request));
request.slice_count = 1;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
strcpy(request.name, kTestPartName1);
memcpy(request.type, kTestPartGUIDData, GUID_LEN);
fbl::unique_fd vp_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(vp_fd);
// Extend the vpart (writes to primary)
fzl::UnownedFdioCaller partition_caller(vp_fd.get());
zx::unowned_channel partition_channel(partition_caller.borrow_channel());
zx_status_t status;
uint64_t offset = 1;
uint64_t length = 1;
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), offset, length,
&status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
fuchsia_hardware_block_BlockInfo block_info;
ASSERT_EQ(fuchsia_hardware_block_BlockGetInfo(partition_channel->get(), &status, &block_info),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(block_info.block_count * block_info.block_size, slice_size * 2);
// Initial slice access
ASSERT_TRUE(CheckWriteReadBlock(vp_fd.get(), 0, 1));
// Extended slice access
ASSERT_TRUE(CheckWriteReadBlock(vp_fd.get(), slice_size / block_info.block_size, 1));
ASSERT_EQ(close(vp_fd.release()), 0);
// Corrupt the (backup) metadata and rebind.
// The 'primary' was the last one written, so it'll be used.
off_t off = fvm::BackupStart(kDiskSize, slice_size);
uint8_t buf[fvm::kBlockSize];
ASSERT_EQ(lseek(ramdisk_fd.get(), off, SEEK_SET), off);
ASSERT_EQ(read(ramdisk_fd.get(), buf, sizeof(buf)), sizeof(buf));
// Modify an arbitrary byte (not the magic bits; we still want it to mount!)
buf[128]++;
ASSERT_EQ(lseek(ramdisk_fd.get(), off, SEEK_SET), off);
ASSERT_EQ(write(ramdisk_fd.get(), buf, sizeof(buf)), sizeof(buf));
const partition_entry_t entries[] = {
{kTestPartName1, 1},
};
fd = FVMRebind(std::move(fd), ramdisk_path, entries, 1);
ASSERT_TRUE(fd, "Failed to rebind FVM driver");
vp_fd.reset(open_partition(kTestUniqueGUID, kTestPartGUIDData, 0, nullptr));
ASSERT_TRUE(vp_fd, "Couldn't re-open Data VPart");
// The slice extension is still accessible.
ASSERT_TRUE(CheckWriteReadBlock(vp_fd.get(), 0, 1));
ASSERT_TRUE(CheckWriteReadBlock(vp_fd.get(), slice_size / block_info.block_size, 1));
// Clean up
ASSERT_EQ(close(vp_fd.release()), 0);
ASSERT_EQ(close(fd.release()), 0);
ASSERT_EQ(close(ramdisk_fd.release()), 0);
ASSERT_TRUE(FVMCheckSliceSize(fvm_driver, 64lu * (1 << 20)));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
bool TestCorruptionRegression() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
ASSERT_EQ(StartFVMTest(512, 1 << 20, 64lu * (1 << 20), ramdisk_path, fvm_driver), 0);
fbl::unique_fd ramdisk_fd(open(ramdisk_path, O_RDWR));
ASSERT_TRUE(ramdisk_fd);
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd);
volume_info_t volume_info;
ASSERT_EQ(fvm_query(fd.get(), &volume_info), ZX_OK);
size_t slice_size = volume_info.slice_size;
// Allocate one VPart (writes to backup)
alloc_req_t request;
memset(&request, 0, sizeof(request));
request.slice_count = 1;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
strcpy(request.name, kTestPartName1);
memcpy(request.type, kTestPartGUIDData, GUID_LEN);
fbl::unique_fd vp_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(vp_fd);
fzl::UnownedFdioCaller partition_caller(vp_fd.get());
zx::unowned_channel partition_channel(partition_caller.borrow_channel());
zx_status_t status;
// Extend the vpart (writes to primary)
uint64_t offset = 1;
uint64_t length = 1;
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), offset, length,
&status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
fuchsia_hardware_block_BlockInfo block_info;
ASSERT_EQ(fuchsia_hardware_block_BlockGetInfo(partition_channel->get(), &status, &block_info),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(block_info.block_count * block_info.block_size, slice_size * 2);
// Initial slice access
ASSERT_TRUE(CheckWriteReadBlock(vp_fd.get(), 0, 1));
// Extended slice access
ASSERT_TRUE(CheckWriteReadBlock(vp_fd.get(), slice_size / block_info.block_size, 1));
ASSERT_EQ(close(vp_fd.release()), 0);
// Corrupt the (primary) metadata and rebind.
// The 'primary' was the last one written, so the backup will be used.
off_t off = 0;
uint8_t buf[fvm::kBlockSize];
ASSERT_EQ(lseek(ramdisk_fd.get(), off, SEEK_SET), off);
ASSERT_EQ(read(ramdisk_fd.get(), buf, sizeof(buf)), sizeof(buf));
buf[128]++;
ASSERT_EQ(lseek(ramdisk_fd.get(), off, SEEK_SET), off);
ASSERT_EQ(write(ramdisk_fd.get(), buf, sizeof(buf)), sizeof(buf));
const partition_entry_t entries[] = {
{kTestPartName1, 1},
};
fd = FVMRebind(std::move(fd), ramdisk_path, entries, 1);
ASSERT_TRUE(fd, "Failed to rebind FVM driver");
vp_fd.reset(open_partition(kTestUniqueGUID, kTestPartGUIDData, 0, nullptr));
ASSERT_TRUE(vp_fd);
// The slice extension is no longer accessible
ASSERT_TRUE(CheckWriteReadBlock(vp_fd.get(), 0, 1));
ASSERT_TRUE(CheckNoAccessBlock(vp_fd.get(), slice_size / block_info.block_size, 1));
// Clean up
ASSERT_EQ(close(vp_fd.release()), 0);
ASSERT_EQ(close(fd.release()), 0);
ASSERT_EQ(close(ramdisk_fd.release()), 0);
ASSERT_TRUE(FVMCheckSliceSize(fvm_driver, 64lu * (1 << 20)));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
bool TestCorruptionUnrecoverable() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
ASSERT_EQ(StartFVMTest(512, 1 << 20, 64lu * (1 << 20), ramdisk_path, fvm_driver), 0);
const size_t kDiskSize = use_real_disk ? test_block_size * test_block_count : 512 * (1 << 20);
fbl::unique_fd ramdisk_fd(open(ramdisk_path, O_RDWR));
ASSERT_TRUE(ramdisk_fd);
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd);
volume_info_t volume_info;
ASSERT_EQ(fvm_query(fd.get(), &volume_info), ZX_OK);
size_t slice_size = volume_info.slice_size;
// Allocate one VPart (writes to backup)
alloc_req_t request;
memset(&request, 0, sizeof(request));
request.slice_count = 1;
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
strcpy(request.name, kTestPartName1);
memcpy(request.type, kTestPartGUIDData, GUID_LEN);
fbl::unique_fd vp_fd(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(vp_fd);
fzl::UnownedFdioCaller partition_caller(vp_fd.get());
zx::unowned_channel partition_channel(partition_caller.borrow_channel());
zx_status_t status;
// Extend the vpart (writes to primary)
uint64_t offset = 1;
uint64_t length = 1;
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), offset, length,
&status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
fuchsia_hardware_block_BlockInfo block_info;
ASSERT_EQ(fuchsia_hardware_block_BlockGetInfo(partition_channel->get(), &status, &block_info),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_EQ(block_info.block_count * block_info.block_size, slice_size * 2);
// Initial slice access
ASSERT_TRUE(CheckWriteReadBlock(vp_fd.get(), 0, 1));
// Extended slice access
ASSERT_TRUE(CheckWriteReadBlock(vp_fd.get(), slice_size / block_info.block_size, 1));
ASSERT_EQ(close(vp_fd.release()), 0);
// Corrupt both copies of the metadata.
// The 'primary' was the last one written, so the backup will be used.
off_t off = 0;
uint8_t buf[fvm::kBlockSize];
ASSERT_EQ(lseek(ramdisk_fd.get(), off, SEEK_SET), off);
ASSERT_EQ(read(ramdisk_fd.get(), buf, sizeof(buf)), sizeof(buf));
buf[128]++;
ASSERT_EQ(lseek(ramdisk_fd.get(), off, SEEK_SET), off);
ASSERT_EQ(write(ramdisk_fd.get(), buf, sizeof(buf)), sizeof(buf));
off = fvm::BackupStart(kDiskSize, slice_size);
ASSERT_EQ(lseek(ramdisk_fd.get(), off, SEEK_SET), off);
ASSERT_EQ(read(ramdisk_fd.get(), buf, sizeof(buf)), sizeof(buf));
buf[128]++;
ASSERT_EQ(lseek(ramdisk_fd.get(), off, SEEK_SET), off);
ASSERT_EQ(write(ramdisk_fd.get(), buf, sizeof(buf)), sizeof(buf));
const partition_entry_t entries[] = {
{kTestPartName1, 1},
};
ASSERT_FALSE(FVMRebind(std::move(fd), ramdisk_path, entries, 1),
"FVM Should have failed to rebind");
ASSERT_TRUE(ValidateFVM(ramdisk_path, ValidationResult::Corrupted));
// Clean up
ASSERT_EQ(close(ramdisk_fd.release()), 0);
// FVM is no longer valid - only need to remove if using ramdisk
if (!use_real_disk) {
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
} else {
fvm_overwrite(ramdisk_path, slice_size);
}
END_TEST;
}
typedef struct {
// Both in units of "slice"
size_t start;
size_t len;
} fvm_extent_t;
typedef struct {
fbl::unique_fd vp_fd;
fbl::Vector<fvm_extent_t> extents;
thrd_t thr;
} fvm_thread_state_t;
template <size_t ThreadCount>
struct fvm_test_state_t {
size_t block_size;
size_t slice_size;
size_t slices_total;
fvm_thread_state_t thread_states[ThreadCount];
fbl::Mutex lock;
size_t slices_left TA_GUARDED(lock);
};
template <size_t ThreadCount>
struct thrd_args_t {
size_t tid;
fvm_test_state_t<ThreadCount>* st;
};
template <size_t ThreadCount>
int random_access_thread(void* arg) {
auto ta = static_cast<thrd_args_t<ThreadCount>*>(arg);
uint8_t color = static_cast<uint8_t>(ta->tid);
auto st = ta->st;
auto self = &st->thread_states[color];
unsigned int seed = static_cast<unsigned int>(zx_ticks_get());
unittest_printf("random_access_thread using seed: %u\n", seed);
// Before we begin, color our first slice.
// We'll identify our own slices by the "color", which
// is distinct between threads.
ASSERT_TRUE(CheckWriteColor(self->vp_fd.get(), 0, st->slice_size, color));
ASSERT_TRUE(CheckReadColor(self->vp_fd.get(), 0, st->slice_size, color));
zx_status_t status;
size_t num_ops = 100;
for (size_t i = 0; i < num_ops; ++i) {
switch (rand_r(&seed) % 5) {
case 0: {
// Extend and color slice, if possible
size_t extent_index = rand_r(&seed) % self->extents.size();
size_t extension_length = 0;
{
fbl::AutoLock al(&st->lock);
if (!st->slices_left) {
continue;
}
extension_length = fbl::min((rand_r(&seed) % st->slices_left) + 1, 5lu);
st->slices_left -= extension_length;
}
uint64_t offset = self->extents[extent_index].start + self->extents[extent_index].len;
uint64_t length = extension_length;
size_t byte_off = offset * st->slice_size;
size_t byte_len = extension_length * st->slice_size;
ASSERT_TRUE(CheckNoAccessBlock(self->vp_fd.get(), byte_off / st->block_size,
byte_len / st->block_size));
fzl::UnownedFdioCaller partition_caller(self->vp_fd.get());
zx::unowned_channel partition_channel(partition_caller.borrow_channel());
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), offset,
length, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
self->extents[extent_index].len += extension_length;
ASSERT_TRUE(CheckWriteColor(self->vp_fd.get(), byte_off, byte_len, color));
ASSERT_TRUE(CheckReadColor(self->vp_fd.get(), byte_off, byte_len, color));
break;
}
case 1: {
// Allocate a new slice, if possible
fvm_extent_t extent;
// Space out the starting offsets far enough that there
// is no risk of collision between fvm extents
extent.start = (self->extents.end() - 1)->start + st->slices_total;
{
fbl::AutoLock al(&st->lock);
if (!st->slices_left) {
continue;
}
extent.len = fbl::min((rand_r(&seed) % st->slices_left) + 1, 5lu);
st->slices_left -= extent.len;
}
uint64_t offset = extent.start;
uint64_t length = extent.len;
size_t byte_off = offset * st->slice_size;
size_t byte_len = extent.len * st->slice_size;
ASSERT_TRUE(CheckNoAccessBlock(self->vp_fd.get(), byte_off / st->block_size,
byte_len / st->block_size));
fzl::UnownedFdioCaller partition_caller(self->vp_fd.get());
zx::unowned_channel partition_channel(partition_caller.borrow_channel());
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeExtend(partition_channel->get(), offset,
length, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_TRUE(CheckWriteColor(self->vp_fd.get(), byte_off, byte_len, color));
ASSERT_TRUE(CheckReadColor(self->vp_fd.get(), byte_off, byte_len, color));
self->extents.push_back(std::move(extent));
break;
}
case 2: {
// Shrink slice, if possible
size_t extent_index = rand_r(&seed) % self->extents.size();
if (self->extents[extent_index].len == 1) {
continue;
}
size_t shrink_length = (rand_r(&seed) % (self->extents[extent_index].len - 1)) + 1;
uint64_t offset =
self->extents[extent_index].start + self->extents[extent_index].len - shrink_length;
uint64_t length = shrink_length;
size_t byte_off = self->extents[extent_index].start * st->slice_size;
size_t byte_len = self->extents[extent_index].len * st->slice_size;
ASSERT_TRUE(CheckReadColor(self->vp_fd.get(), byte_off, byte_len, color));
fzl::UnownedFdioCaller partition_caller(self->vp_fd.get());
zx::unowned_channel partition_channel(partition_caller.borrow_channel());
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeShrink(partition_channel->get(), offset,
length, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
self->extents[extent_index].len -= shrink_length;
byte_len = self->extents[extent_index].len * st->slice_size;
ASSERT_TRUE(CheckReadColor(self->vp_fd.get(), byte_off, byte_len, color));
{
fbl::AutoLock al(&st->lock);
st->slices_left += shrink_length;
}
break;
}
case 3: {
// Split slice, if possible
size_t extent_index = rand_r(&seed) % self->extents.size();
if (self->extents[extent_index].len < 3) {
continue;
}
size_t shrink_length = (rand_r(&seed) % (self->extents[extent_index].len - 2)) + 1;
uint64_t offset = self->extents[extent_index].start + 1;
uint64_t length = shrink_length;
size_t byte_off = self->extents[extent_index].start * st->slice_size;
size_t byte_len = self->extents[extent_index].len * st->slice_size;
ASSERT_TRUE(CheckReadColor(self->vp_fd.get(), byte_off, byte_len, color));
fzl::UnownedFdioCaller partition_caller(self->vp_fd.get());
zx::unowned_channel partition_channel(partition_caller.borrow_channel());
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeShrink(partition_channel->get(), offset,
length, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
// We can read the slice before...
byte_off = self->extents[extent_index].start * st->slice_size;
byte_len = st->slice_size;
ASSERT_TRUE(CheckReadColor(self->vp_fd.get(), byte_off, byte_len, color));
// ... and the slices after...
byte_off = (self->extents[extent_index].start + 1 + shrink_length) * st->slice_size;
byte_len = (self->extents[extent_index].len - shrink_length - 1) * st->slice_size;
ASSERT_TRUE(CheckReadColor(self->vp_fd.get(), byte_off, byte_len, color));
// ... but not in the middle.
byte_off = (self->extents[extent_index].start + 1) * st->slice_size;
byte_len = (shrink_length)*st->slice_size;
ASSERT_TRUE(CheckNoAccessBlock(self->vp_fd.get(), byte_off / st->block_size,
byte_len / st->block_size));
// To avoid collisions between test extents, let's remove the
// trailing extent.
offset = self->extents[extent_index].start + 1 + shrink_length;
length = self->extents[extent_index].len - shrink_length - 1;
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeShrink(partition_channel->get(), offset,
length, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
self->extents[extent_index].len = 1;
byte_off = self->extents[extent_index].start * st->slice_size;
byte_len = self->extents[extent_index].len * st->slice_size;
ASSERT_TRUE(CheckReadColor(self->vp_fd.get(), byte_off, byte_len, color));
{
fbl::AutoLock al(&st->lock);
st->slices_left += shrink_length;
}
break;
}
case 4: {
// Deallocate a slice
size_t extent_index = rand_r(&seed) % self->extents.size();
if (extent_index == 0) {
// We must keep the 0th slice
continue;
}
uint64_t offset = self->extents[extent_index].start;
uint64_t length = self->extents[extent_index].len;
size_t byte_off = self->extents[extent_index].start * st->slice_size;
size_t byte_len = self->extents[extent_index].len * st->slice_size;
ASSERT_TRUE(CheckReadColor(self->vp_fd.get(), byte_off, byte_len, color));
fzl::UnownedFdioCaller partition_caller(self->vp_fd.get());
zx::unowned_channel partition_channel(partition_caller.borrow_channel());
ASSERT_EQ(fuchsia_hardware_block_volume_VolumeShrink(partition_channel->get(), offset,
length, &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
ASSERT_TRUE(CheckNoAccessBlock(self->vp_fd.get(), byte_off / st->block_size,
byte_len / st->block_size));
{
fbl::AutoLock al(&st->lock);
st->slices_left += self->extents[extent_index].len;
}
for (size_t i = extent_index; i < self->extents.size() - 1; i++) {
self->extents[i] = std::move(self->extents[i + 1]);
}
self->extents.pop_back();
break;
}
}
}
return 0;
}
template <size_t ThreadCount, bool Persistence>
bool TestRandomOpMultithreaded() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
const size_t kBlockSize = use_real_disk ? test_block_size : 512;
const size_t kBlockCount = use_real_disk ? test_block_count : 1 << 20;
const size_t kBlocksPerSlice = 32;
const size_t kSliceSize = kBlocksPerSlice * kBlockSize;
ASSERT_EQ(StartFVMTest(kBlockSize, kBlockCount, kSliceSize, ramdisk_path, fvm_driver), 0);
const size_t kDiskSize = kBlockSize * kBlockCount;
const size_t kSlicesCount = fvm::UsableSlicesCount(kDiskSize, kSliceSize);
if (use_real_disk && kSlicesCount <= ThreadCount * 2) {
printf("Not enough slices to distribute between threads: ignoring test\n");
return true;
}
ASSERT_GT(kSlicesCount, ThreadCount * 2, "Not enough slices to distribute between threads");
fvm_test_state_t<ThreadCount> s{};
s.block_size = kBlockSize;
s.slice_size = kSliceSize;
{
fbl::AutoLock al(&s.lock);
s.slices_left = kSlicesCount - ThreadCount;
s.slices_total = kSlicesCount;
}
fbl::unique_fd fd(open(fvm_driver, O_RDWR));
ASSERT_TRUE(fd);
alloc_req_t request;
memset(&request, 0, sizeof(request));
size_t slice_count = 1;
request.slice_count = slice_count;
strcpy(request.name, "TestPartition");
memcpy(request.type, kTestPartGUIDData, GUID_LEN);
memcpy(request.guid, kTestUniqueGUID, GUID_LEN);
for (size_t i = 0; i < ThreadCount; i++) {
// Change the GUID enough to be distinct for each thread
request.guid[0] = static_cast<uint8_t>(i);
s.thread_states[i].vp_fd.reset(fvm_allocate_partition(fd.get(), &request));
ASSERT_TRUE(s.thread_states[i].vp_fd);
}
thrd_args_t<ThreadCount> ta[ThreadCount];
// Initialize and launch all threads
for (size_t i = 0; i < ThreadCount; i++) {
ta[i].tid = i;
ta[i].st = &s;
EXPECT_EQ(s.thread_states[i].extents.size(), 0);
fvm_extent_t extent;
extent.start = 0;
extent.len = 1;
s.thread_states[i].extents.push_back(std::move(extent));
EXPECT_TRUE(CheckWriteReadBlock(s.thread_states[i].vp_fd.get(), 0, kBlocksPerSlice));
EXPECT_EQ(thrd_create(&s.thread_states[i].thr, random_access_thread<ThreadCount>, &ta[i]),
thrd_success);
}
if (Persistence) {
partition_entry_t entries[ThreadCount];
// Join all threads
for (size_t i = 0; i < ThreadCount; i++) {
int r;
EXPECT_EQ(thrd_join(s.thread_states[i].thr, &r), thrd_success);
EXPECT_EQ(r, 0);
EXPECT_EQ(close(s.thread_states[i].vp_fd.release()), 0);
entries[i].name = request.name;
entries[i].number = i + 1;
}
// Rebind the FVM (simulating rebooting)
fd = FVMRebind(std::move(fd), ramdisk_path, entries, fbl::count_of(entries));
ASSERT_TRUE(fd);
// Re-open all partitions, re-launch the worker threads
for (size_t i = 0; i < ThreadCount; i++) {
request.guid[0] = static_cast<uint8_t>(i);
fbl::unique_fd vp_fd(open_partition(request.guid, request.type, 0, nullptr));
ASSERT_TRUE(vp_fd);
s.thread_states[i].vp_fd = std::move(vp_fd);
EXPECT_EQ(
thrd_create(&s.thread_states[i].thr, random_access_thread<ThreadCount>, &ta[i]),
thrd_success);
}
}
// Join all the threads, verify their initial block is still valid, and
// destroy them.
for (size_t i = 0; i < ThreadCount; i++) {
int r;
EXPECT_EQ(thrd_join(s.thread_states[i].thr, &r), thrd_success);
EXPECT_EQ(r, 0);
EXPECT_TRUE(CheckWriteReadBlock(s.thread_states[i].vp_fd.get(), 0, kBlocksPerSlice));
fzl::FdioCaller partition_caller(std::move(s.thread_states[i].vp_fd));
;
zx_status_t status;
ASSERT_EQ(
fuchsia_hardware_block_volume_VolumeDestroy(partition_caller.borrow_channel(), &status),
ZX_OK);
ASSERT_EQ(status, ZX_OK);
}
ASSERT_EQ(close(fd.release()), 0);
ASSERT_TRUE(FVMCheckSliceSize(fvm_driver, kSliceSize));
ASSERT_EQ(EndFVMTest(ramdisk_path), 0, "unmounting FVM");
END_TEST;
}
// Tests the FVM checker using invalid arguments.
bool TestCheckBadArguments() {
BEGIN_TEST;
fvm::Checker checker;
ASSERT_FALSE(checker.Validate(), "Checker should be missing device, block size");
checker.SetBlockSize(512);
ASSERT_FALSE(checker.Validate(), "Checker should be missing device");
checker.SetBlockSize(0);
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
ASSERT_EQ(StartFVMTest(512, 1 << 20, 64lu * (1 << 20), ramdisk_path, fvm_driver), 0);
fbl::unique_fd fd(open(ramdisk_path, O_RDWR));
ASSERT_TRUE(fd, 0);
checker.SetDevice(std::move(fd));
ASSERT_FALSE(checker.Validate(), "Checker should be missing block size");
ASSERT_EQ(EndFVMTest(ramdisk_path), 0);
END_TEST;
}
// Tests the FVM checker against a just-initialized FVM.
bool TestCheckNewFVM() {
BEGIN_TEST;
char ramdisk_path[PATH_MAX];
char fvm_driver[PATH_MAX];
ASSERT_EQ(StartFVMTest(512, 1 << 20, 64lu * (1 << 20), ramdisk_path, fvm_driver), 0);
fbl::unique_fd fd(open(ramdisk_path, O_RDWR));
ASSERT_TRUE(fd, 0);
fvm::Checker checker(std::move(fd), 512, true);
ASSERT_TRUE(checker.Validate());
ASSERT_EQ(EndFVMTest(ramdisk_path), 0);
END_TEST;
}
bool TestAbortDriverLoadSmallDevice() {
BEGIN_TEST;
constexpr uint64_t kBlkSize = 512;
constexpr uint64_t kRamdiskBlkCount = 50 * (1 << 20) / kBlkSize;
constexpr uint64_t kSliceSize = (1 << 20);
constexpr uint64_t kFvmPartitionBlkCount = 4 * (1llu << 30) / kBlkSize;
// Write metadata to ramdisk.
ASSERT_EQ(ramdisk_create(kBlkSize, kRamdiskBlkCount, &test_ramdisk), ZX_OK);
char disk_path[PATH_MAX];
strlcpy(disk_path, ramdisk_get_path(test_ramdisk), PATH_MAX);
fbl::unique_fd ramdisk_fd(open(disk_path, O_RDWR));
// Init fvm with a partition bigger than the underlying disk.
fvm_init_with_size(ramdisk_fd.get(), kBlkSize * kFvmPartitionBlkCount, kSliceSize);
zx_status_t call_status;
zx::channel fvm_channel;
// Try to bind an fvm to the disk.
ASSERT_EQ(fdio_get_service_handle(ramdisk_fd.get(), fvm_channel.reset_and_get_address()),
ZX_OK);
ASSERT_EQ(fuchsia_device_ControllerBind(fvm_channel.get(), FVM_DRIVER_LIB,
STRLEN(FVM_DRIVER_LIB), &call_status),
ZX_OK);
ASSERT_EQ(call_status, ZX_OK);
// Ugly way of validating that the driver failed to Load.
char fvm_path[PATH_MAX];
snprintf(fvm_path, sizeof(fvm_path), "%s/fvm", disk_path);
ASSERT_EQ(wait_for_device(fvm_path, ZX_SEC(3)), ZX_ERR_TIMED_OUT);
// Grow the ramdisk to the appropiate size and bind should suceed.
ASSERT_EQ(ramdisk_grow(test_ramdisk, kFvmPartitionBlkCount * kBlkSize), ZX_OK);
ASSERT_EQ(fuchsia_device_ControllerBind(fvm_channel.get(), FVM_DRIVER_LIB,
STRLEN(FVM_DRIVER_LIB), &call_status),
ZX_OK);
ASSERT_EQ(call_status, ZX_OK);
ASSERT_EQ(wait_for_device(fvm_path, ZX_SEC(3)), ZX_OK);
ASSERT_EQ(EndFVMTest(fvm_path), 0, "unmounting FVM");
END_TEST;
}
} // namespace
BEGIN_TEST_CASE(fvm_tests)
RUN_TEST_MEDIUM(TestTooSmall)
RUN_TEST_MEDIUM(TestLarge)
RUN_TEST_MEDIUM(TestEmpty)
RUN_TEST_MEDIUM(TestAllocateOne)
RUN_TEST_MEDIUM(TestAllocateMany)
RUN_TEST_MEDIUM(TestCloseDuringAccess)
RUN_TEST_MEDIUM(TestReleaseDuringAccess)
RUN_TEST_MEDIUM(TestDestroyDuringAccess)
RUN_TEST_MEDIUM(TestVPartitionExtend)
RUN_TEST_MEDIUM(TestVPartitionExtendSparse)
RUN_TEST_MEDIUM(TestVPartitionShrink)
RUN_TEST_MEDIUM(TestVPartitionSplit)
RUN_TEST_MEDIUM(TestVPartitionDestroy)
RUN_TEST_MEDIUM(TestVPartitionQuery)
RUN_TEST_MEDIUM(TestSliceAccessContiguous)
RUN_TEST_MEDIUM(TestSliceAccessMany)
RUN_TEST_MEDIUM(TestSliceAccessNonContiguousPhysical)
RUN_TEST_MEDIUM(TestSliceAccessNonContiguousVirtual)
RUN_TEST_MEDIUM(TestPersistenceSimple)
RUN_TEST_LARGE(TestVPartitionUpgrade)
RUN_TEST_LARGE(TestMounting)
RUN_TEST_LARGE(TestMkfs)
RUN_TEST_MEDIUM(TestCorruptionOk)
RUN_TEST_MEDIUM(TestCorruptionRegression)
RUN_TEST_MEDIUM(TestCorruptionUnrecoverable)
RUN_TEST_LARGE((TestRandomOpMultithreaded<1, /* persistent= */ false>))
RUN_TEST_LARGE((TestRandomOpMultithreaded<3, /* persistent= */ false>))
RUN_TEST_LARGE((TestRandomOpMultithreaded<5, /* persistent= */ false>))
RUN_TEST_LARGE((TestRandomOpMultithreaded<10, /* persistent= */ false>))
RUN_TEST_LARGE((TestRandomOpMultithreaded<25, /* persistent= */ false>))
RUN_TEST_LARGE((TestRandomOpMultithreaded<1, /* persistent= */ true>))
RUN_TEST_LARGE((TestRandomOpMultithreaded<3, /* persistent= */ true>))
RUN_TEST_LARGE((TestRandomOpMultithreaded<5, /* persistent= */ true>))
RUN_TEST_LARGE((TestRandomOpMultithreaded<10, /* persistent= */ true>))
RUN_TEST_LARGE((TestRandomOpMultithreaded<25, /* persistent= */ true>))
RUN_TEST_MEDIUM(TestCorruptMount)
RUN_TEST_MEDIUM(TestAbortDriverLoadSmallDevice)
END_TEST_CASE(fvm_tests)
BEGIN_TEST_CASE(fvm_check_tests)
RUN_TEST_SMALL(TestCheckBadArguments);
RUN_TEST_SMALL(TestCheckNewFVM);
END_TEST_CASE(fvm_check_tests)
int main(int argc, char** argv) {
int i = 1;
while (i < argc - 1) {
if (!strcmp(argv[i], "-d")) {
if (strnlen(argv[i + 1], PATH_MAX) > 0) {
fbl::unique_fd fd(open(argv[i + 1], O_RDWR));
if (!fd) {
fprintf(stderr, "[fs] Could not open block device\n");
return -1;
}
fdio_t* io = fdio_unsafe_fd_to_io(fd.get());
if (io == nullptr) {
fprintf(stderr, "[fs] could not convert fd to io\n");
return -1;
}
zx_status_t call_status;
size_t path_len;
zx_status_t status = fuchsia_device_ControllerGetTopologicalPath(
fdio_unsafe_borrow_channel(io), &call_status, test_disk_path, PATH_MAX - 1,
&path_len);
fdio_unsafe_release(io);
if (status == ZX_OK) {
status = call_status;
}
if (status != ZX_OK) {
fprintf(stderr, "[fs] Could not acquire topological path of block device\n");
return -1;
}
test_disk_path[path_len] = 0;
fzl::UnownedFdioCaller disk_caller(fd.get());
fuchsia_hardware_block_BlockInfo block_info;
zx_status_t io_status = fuchsia_hardware_block_BlockGetInfo(
disk_caller.borrow_channel(), &status, &block_info);
if (io_status != ZX_OK || status != ZX_OK) {
fprintf(stderr, "[fs] Could not query block device info\n");
return -1;
}
// If there is already an FVM on this partition, remove it
fvm_destroy(test_disk_path);
use_real_disk = true;
test_block_size = block_info.block_size;
test_block_count = block_info.block_count;
break;
}
}
i += 1;
}
// Initialize tmpfs.
async::Loop loop(&kAsyncLoopConfigNoAttachToThread);
if (loop.StartThread() != ZX_OK) {
fprintf(stderr, "Error: Cannot initialize local tmpfs loop\n");
return -1;
}
if (memfs_install_at(loop.dispatcher(), kTmpfsPath) != ZX_OK) {
fprintf(stderr, "Error: Cannot install local tmpfs\n");
return -1;
}
return unittest_run_all_tests(argc, argv) ? 0 : -1;
}