[pschweitzer] 73553: [UBTRFS] [BTRFSLIB] As suggested by Peter, bring back the btrfslib and make use of it in ubtrfs. This will allow code reuse especially for people having plans with btrfs and us...
Author: pschweitzer Date: Sun Jan 15 10:58:38 2017 New Revision: 73553
URL: http://svn.reactos.org/svn/reactos?rev=73553&view=rev Log: [UBTRFS] [BTRFSLIB] As suggested by Peter, bring back the btrfslib and make use of it in ubtrfs. This will allow code reuse especially for people having plans with btrfs and usetup ;-)
CORE-12617
Added: trunk/reactos/sdk/lib/fslib/btrfslib/ trunk/reactos/sdk/lib/fslib/btrfslib/CMakeLists.txt (with props) trunk/reactos/sdk/lib/fslib/btrfslib/btrfslib.c (with props) Modified: trunk/reactos/dll/win32/ubtrfs/CMakeLists.txt trunk/reactos/dll/win32/ubtrfs/ubtrfs.c trunk/reactos/dll/win32/ubtrfs/ubtrfs.spec trunk/reactos/media/doc/README.FSD trunk/reactos/sdk/lib/fslib/CMakeLists.txt
Modified: trunk/reactos/dll/win32/ubtrfs/CMakeLists.txt URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/ubtrfs/CMakeLists... ============================================================================== --- trunk/reactos/dll/win32/ubtrfs/CMakeLists.txt [iso-8859-1] (original) +++ trunk/reactos/dll/win32/ubtrfs/CMakeLists.txt [iso-8859-1] Sun Jan 15 10:58:38 2017 @@ -8,5 +8,6 @@
add_library(ubtrfs SHARED ${SOURCE}) set_module_type(ubtrfs nativedll) +target_link_libraries(ubtrfs btrfslib) add_importlibs(ubtrfs ntdll) add_cd_file(TARGET ubtrfs DESTINATION reactos/system32 FOR all)
Modified: trunk/reactos/dll/win32/ubtrfs/ubtrfs.c URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/ubtrfs/ubtrfs.c?r... ============================================================================== --- trunk/reactos/dll/win32/ubtrfs/ubtrfs.c [iso-8859-1] (original) +++ trunk/reactos/dll/win32/ubtrfs/ubtrfs.c [iso-8859-1] Sun Jan 15 10:58:38 2017 @@ -1,1463 +1,23 @@ -/* Copyright (c) Mark Harmstone 2016 - * - * This file is part of WinBtrfs. - * - * WinBtrfs is free software: you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public Licence as published by - * the Free Software Foundation, either version 3 of the Licence, or - * (at your option) any later version. - * - * WinBtrfs is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Lesser General Public Licence for more details. - * - * You should have received a copy of the GNU Lesser General Public Licence - * along with WinBtrfs. If not, see http://www.gnu.org/licenses/. */ +/* + * COPYRIGHT: See COPYING in the top level directory + * PROJECT: BtrFS File System Management + * FILE: dll/win32/ubtrfs/ubtrfs.c + * PURPOSE: ubtrfs DLL initialisation + * + * PROGRAMMERS: Pierre Schweitzer + */
-#include <stdlib.h> -#include <stddef.h> -#include <time.h> -#include <ntstatus.h> -#define WIN32_NO_STATUS #include <windef.h> -#include <winbase.h> -#ifndef __REACTOS__ -#include <winternl.h> -#include <devioctl.h> -#include <ntdddisk.h> -#else -#include <ndk/iofuncs.h> -#include <ndk/obfuncs.h> -#include <ndk/rtlfuncs.h> -#endif -#include <ntddscsi.h> -#include <ata.h> -#include <mountmgr.h> -#ifdef __REACTOS__ -#include "../../drivers/filesystems/btrfs/btrfs.h" -#include "../../drivers/filesystems/btrfs/btrfsioctl.h" -#else -#include "../btrfs.h" -#include "../btrfsioctl.h" -#endif
-#ifndef __REACTOS__ -#define FSCTL_LOCK_VOLUME CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 6, METHOD_BUFFERED, FILE_ANY_ACCESS) -#define FSCTL_UNLOCK_VOLUME CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 7, METHOD_BUFFERED, FILE_ANY_ACCESS) -#define FSCTL_DISMOUNT_VOLUME CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 8, METHOD_BUFFERED, FILE_ANY_ACCESS) -#endif +INT WINAPI +DllMain( + IN HINSTANCE hinstDLL, + IN DWORD dwReason, + IN LPVOID lpvReserved) +{ + UNREFERENCED_PARAMETER(hinstDLL); + UNREFERENCED_PARAMETER(dwReason); + UNREFERENCED_PARAMETER(lpvReserved);
-#ifndef __REACTOS__ -#ifdef __cplusplus -extern "C" { -#endif -NTSYSCALLAPI NTSTATUS NTAPI NtFsControlFile(HANDLE FileHandle, HANDLE Event, PIO_APC_ROUTINE ApcRoutine, PVOID ApcContext, PIO_STATUS_BLOCK IoStatusBlock, ULONG FsControlCode, PVOID InputBuffer, ULONG InputBufferLength, PVOID OutputBuffer, ULONG OutputBufferLength); - -NTSTATUS NTAPI NtWriteFile(HANDLE FileHandle, HANDLE Event, PIO_APC_ROUTINE ApcRoutine, PVOID ApcContext, PIO_STATUS_BLOCK IoStatusBlock, PVOID Buffer, - ULONG Length, PLARGE_INTEGER ByteOffset, PULONG Key); - -NTSTATUS NTAPI NtReadFile(HANDLE FileHandle, HANDLE Event, PIO_APC_ROUTINE ApcRoutine, PVOID ApcContext, PIO_STATUS_BLOCK IoStatusBlock, PVOID Buffer, - ULONG Length, PLARGE_INTEGER ByteOffset, PULONG Key); - -NTSYSAPI NTSTATUS NTAPI RtlUnicodeToUTF8N(PCHAR UTF8StringDestination, ULONG UTF8StringMaxByteCount, PULONG UTF8StringActualByteCount, - PCWCH UnicodeStringSource, ULONG UnicodeStringByteCount); -#ifdef __cplusplus + return TRUE; } -#endif - -FORCEINLINE VOID InitializeListHead(PLIST_ENTRY ListHead) { - ListHead->Flink = ListHead->Blink = ListHead; -} - -FORCEINLINE VOID InsertTailList(PLIST_ENTRY ListHead, PLIST_ENTRY Entry) { - PLIST_ENTRY Blink; - - Blink = ListHead->Blink; - Entry->Flink = ListHead; - Entry->Blink = Blink; - Blink->Flink = Entry; - ListHead->Blink = Entry; -} -#endif - -#if defined(__REACTOS__) && (NTDDI_VERSION < NTDDI_WIN7) -NTSTATUS WINAPI RtlUnicodeToUTF8N(CHAR *utf8_dest, ULONG utf8_bytes_max, - ULONG *utf8_bytes_written, - const WCHAR *uni_src, ULONG uni_bytes); -#endif /* defined(__REACTOS__) && (NTDDI_VERSION < NTDDI_WIN7) */ - -#ifdef __REACTOS__ -ULONG WINAPI NtGetTickCount(VOID); -#endif - -typedef struct { - KEY key; - UINT16 size; - void* data; - LIST_ENTRY list_entry; -} btrfs_item; - -typedef struct { - UINT64 offset; - CHUNK_ITEM* chunk_item; - UINT64 lastoff; - UINT64 used; - LIST_ENTRY list_entry; -} btrfs_chunk; - -typedef struct { - UINT64 id; - tree_header header; - btrfs_chunk* c; - LIST_ENTRY items; - LIST_ENTRY list_entry; -} btrfs_root; - -typedef struct { - DEV_ITEM dev_item; - UINT64 last_alloc; -} btrfs_dev; - -#define keycmp(key1, key2)\ - ((key1.obj_id < key2.obj_id) ? -1 :\ - ((key1.obj_id > key2.obj_id) ? 1 :\ - ((key1.obj_type < key2.obj_type) ? -1 :\ - ((key1.obj_type > key2.obj_type) ? 1 :\ - ((key1.offset < key2.offset) ? -1 :\ - ((key1.offset > key2.offset) ? 1 :\ - 0)))))) - -HMODULE module; - -// the following definitions come from fmifs.h in ReactOS - -typedef struct { - ULONG Lines; - PCHAR Output; -} TEXTOUTPUT, *PTEXTOUTPUT; - -typedef enum { - FMIFS_UNKNOWN0, - FMIFS_UNKNOWN1, - FMIFS_UNKNOWN2, - FMIFS_UNKNOWN3, - FMIFS_UNKNOWN4, - FMIFS_UNKNOWN5, - FMIFS_UNKNOWN6, - FMIFS_UNKNOWN7, - FMIFS_FLOPPY, - FMIFS_UNKNOWN9, - FMIFS_UNKNOWN10, - FMIFS_REMOVABLE, - FMIFS_HARDDISK, - FMIFS_UNKNOWN13, - FMIFS_UNKNOWN14, - FMIFS_UNKNOWN15, - FMIFS_UNKNOWN16, - FMIFS_UNKNOWN17, - FMIFS_UNKNOWN18, - FMIFS_UNKNOWN19, - FMIFS_UNKNOWN20, - FMIFS_UNKNOWN21, - FMIFS_UNKNOWN22, - FMIFS_UNKNOWN23, -} FMIFS_MEDIA_FLAG; - -typedef enum { - PROGRESS, - DONEWITHSTRUCTURE, - UNKNOWN2, - UNKNOWN3, - UNKNOWN4, - UNKNOWN5, - INSUFFICIENTRIGHTS, - FSNOTSUPPORTED, - VOLUMEINUSE, - UNKNOWN9, - UNKNOWNA, - DONE, - UNKNOWNC, - UNKNOWND, - OUTPUT, - STRUCTUREPROGRESS, - CLUSTERSIZETOOSMALL, -} CALLBACKCOMMAND; - -typedef BOOLEAN (NTAPI* PFMIFSCALLBACK)(CALLBACKCOMMAND Command, ULONG SubAction, PVOID ActionInfo); - -static const UINT32 crctable[] = { - 0x00000000, 0xf26b8303, 0xe13b70f7, 0x1350f3f4, 0xc79a971f, 0x35f1141c, 0x26a1e7e8, 0xd4ca64eb, - 0x8ad958cf, 0x78b2dbcc, 0x6be22838, 0x9989ab3b, 0x4d43cfd0, 0xbf284cd3, 0xac78bf27, 0x5e133c24, - 0x105ec76f, 0xe235446c, 0xf165b798, 0x030e349b, 0xd7c45070, 0x25afd373, 0x36ff2087, 0xc494a384, - 0x9a879fa0, 0x68ec1ca3, 0x7bbcef57, 0x89d76c54, 0x5d1d08bf, 0xaf768bbc, 0xbc267848, 0x4e4dfb4b, - 0x20bd8ede, 0xd2d60ddd, 0xc186fe29, 0x33ed7d2a, 0xe72719c1, 0x154c9ac2, 0x061c6936, 0xf477ea35, - 0xaa64d611, 0x580f5512, 0x4b5fa6e6, 0xb93425e5, 0x6dfe410e, 0x9f95c20d, 0x8cc531f9, 0x7eaeb2fa, - 0x30e349b1, 0xc288cab2, 0xd1d83946, 0x23b3ba45, 0xf779deae, 0x05125dad, 0x1642ae59, 0xe4292d5a, - 0xba3a117e, 0x4851927d, 0x5b016189, 0xa96ae28a, 0x7da08661, 0x8fcb0562, 0x9c9bf696, 0x6ef07595, - 0x417b1dbc, 0xb3109ebf, 0xa0406d4b, 0x522bee48, 0x86e18aa3, 0x748a09a0, 0x67dafa54, 0x95b17957, - 0xcba24573, 0x39c9c670, 0x2a993584, 0xd8f2b687, 0x0c38d26c, 0xfe53516f, 0xed03a29b, 0x1f682198, - 0x5125dad3, 0xa34e59d0, 0xb01eaa24, 0x42752927, 0x96bf4dcc, 0x64d4cecf, 0x77843d3b, 0x85efbe38, - 0xdbfc821c, 0x2997011f, 0x3ac7f2eb, 0xc8ac71e8, 0x1c661503, 0xee0d9600, 0xfd5d65f4, 0x0f36e6f7, - 0x61c69362, 0x93ad1061, 0x80fde395, 0x72966096, 0xa65c047d, 0x5437877e, 0x4767748a, 0xb50cf789, - 0xeb1fcbad, 0x197448ae, 0x0a24bb5a, 0xf84f3859, 0x2c855cb2, 0xdeeedfb1, 0xcdbe2c45, 0x3fd5af46, - 0x7198540d, 0x83f3d70e, 0x90a324fa, 0x62c8a7f9, 0xb602c312, 0x44694011, 0x5739b3e5, 0xa55230e6, - 0xfb410cc2, 0x092a8fc1, 0x1a7a7c35, 0xe811ff36, 0x3cdb9bdd, 0xceb018de, 0xdde0eb2a, 0x2f8b6829, - 0x82f63b78, 0x709db87b, 0x63cd4b8f, 0x91a6c88c, 0x456cac67, 0xb7072f64, 0xa457dc90, 0x563c5f93, - 0x082f63b7, 0xfa44e0b4, 0xe9141340, 0x1b7f9043, 0xcfb5f4a8, 0x3dde77ab, 0x2e8e845f, 0xdce5075c, - 0x92a8fc17, 0x60c37f14, 0x73938ce0, 0x81f80fe3, 0x55326b08, 0xa759e80b, 0xb4091bff, 0x466298fc, - 0x1871a4d8, 0xea1a27db, 0xf94ad42f, 0x0b21572c, 0xdfeb33c7, 0x2d80b0c4, 0x3ed04330, 0xccbbc033, - 0xa24bb5a6, 0x502036a5, 0x4370c551, 0xb11b4652, 0x65d122b9, 0x97baa1ba, 0x84ea524e, 0x7681d14d, - 0x2892ed69, 0xdaf96e6a, 0xc9a99d9e, 0x3bc21e9d, 0xef087a76, 0x1d63f975, 0x0e330a81, 0xfc588982, - 0xb21572c9, 0x407ef1ca, 0x532e023e, 0xa145813d, 0x758fe5d6, 0x87e466d5, 0x94b49521, 0x66df1622, - 0x38cc2a06, 0xcaa7a905, 0xd9f75af1, 0x2b9cd9f2, 0xff56bd19, 0x0d3d3e1a, 0x1e6dcdee, 0xec064eed, - 0xc38d26c4, 0x31e6a5c7, 0x22b65633, 0xd0ddd530, 0x0417b1db, 0xf67c32d8, 0xe52cc12c, 0x1747422f, - 0x49547e0b, 0xbb3ffd08, 0xa86f0efc, 0x5a048dff, 0x8ecee914, 0x7ca56a17, 0x6ff599e3, 0x9d9e1ae0, - 0xd3d3e1ab, 0x21b862a8, 0x32e8915c, 0xc083125f, 0x144976b4, 0xe622f5b7, 0xf5720643, 0x07198540, - 0x590ab964, 0xab613a67, 0xb831c993, 0x4a5a4a90, 0x9e902e7b, 0x6cfbad78, 0x7fab5e8c, 0x8dc0dd8f, - 0xe330a81a, 0x115b2b19, 0x020bd8ed, 0xf0605bee, 0x24aa3f05, 0xd6c1bc06, 0xc5914ff2, 0x37faccf1, - 0x69e9f0d5, 0x9b8273d6, 0x88d28022, 0x7ab90321, 0xae7367ca, 0x5c18e4c9, 0x4f48173d, 0xbd23943e, - 0xf36e6f75, 0x0105ec76, 0x12551f82, 0xe03e9c81, 0x34f4f86a, 0xc69f7b69, 0xd5cf889d, 0x27a40b9e, - 0x79b737ba, 0x8bdcb4b9, 0x988c474d, 0x6ae7c44e, 0xbe2da0a5, 0x4c4623a6, 0x5f16d052, 0xad7d5351, -}; - -static UINT32 calc_crc32c(UINT32 seed, UINT8* msg, ULONG msglen) { - UINT32 rem; - ULONG i; - - rem = seed; - - for (i = 0; i < msglen; i++) { - rem = crctable[(rem ^ msg[i]) & 0xff] ^ (rem >> 8); - } - - return rem; -} - -NTSTATUS WINAPI ChkdskEx(PUNICODE_STRING DriveRoot, BOOLEAN FixErrors, BOOLEAN Verbose, BOOLEAN CheckOnlyIfDirty, - BOOLEAN ScanDrive, PFMIFSCALLBACK Callback) { - // STUB - - if (Callback) { - TEXTOUTPUT TextOut; - - TextOut.Lines = 1; - TextOut.Output = "stub, not implemented"; - - Callback(OUTPUT, 0, &TextOut); - } - - return STATUS_SUCCESS; -} - -static btrfs_root* add_root(LIST_ENTRY* roots, UINT64 id) { - btrfs_root* root; - -#ifdef __REACTOS__ - root = RtlAllocateHeap(RtlGetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(btrfs_root)); -#else - root = malloc(sizeof(btrfs_root)); -#endif - - root->id = id; -#ifndef __REACTOS__ - RtlZeroMemory(&root->header, sizeof(tree_header)); -#endif - InitializeListHead(&root->items); - InsertTailList(roots, &root->list_entry); - - return root; -} - -static void free_roots(LIST_ENTRY* roots) { - LIST_ENTRY* le; - - le = roots->Flink; - while (le != roots) { - LIST_ENTRY *le2 = le->Flink, *le3; - btrfs_root* r = CONTAINING_RECORD(le, btrfs_root, list_entry); - - le3 = r->items.Flink; - while (le3 != &r->items) { - LIST_ENTRY* le4 = le3->Flink; - btrfs_item* item = CONTAINING_RECORD(le3, btrfs_item, list_entry); - - if (item->data) -#ifdef __REACTOS__ - RtlFreeHeap(RtlGetProcessHeap(), 0, item->data); - - RtlFreeHeap(RtlGetProcessHeap(), 0, item); -#else - free(item->data); - - free(item); -#endif - - le3 = le4; - } - -#ifdef __REACTOS__ - RtlFreeHeap(RtlGetProcessHeap(), 0, r); -#else - free(r); -#endif - - le = le2; - } -} - -static void free_chunks(LIST_ENTRY* chunks) { - LIST_ENTRY* le; - - le = chunks->Flink; - while (le != chunks) { - LIST_ENTRY *le2 = le->Flink; - btrfs_chunk* c = CONTAINING_RECORD(le, btrfs_chunk, list_entry); - -#ifndef __REACTOS__ - free(c->chunk_item); - free(c); -#else - RtlFreeHeap(RtlGetProcessHeap(), 0, c->chunk_item); - RtlFreeHeap(RtlGetProcessHeap(), 0, c); -#endif - - le = le2; - } -} - -static void add_item(btrfs_root* r, UINT64 obj_id, UINT8 obj_type, UINT64 offset, void* data, UINT16 size) { - LIST_ENTRY* le; - btrfs_item* item; - -#ifndef __REACTOS__ - item = malloc(sizeof(btrfs_item)); -#else - item = RtlAllocateHeap(RtlGetProcessHeap(), 0, sizeof(btrfs_item)); -#endif - - item->key.obj_id = obj_id; - item->key.obj_type = obj_type; - item->key.offset = offset; - item->size = size; - - if (size == 0) - item->data = NULL; - else { -#ifndef __REACTOS__ - item->data = malloc(size); -#else - item->data = RtlAllocateHeap(RtlGetProcessHeap(), 0, size); -#endif - memcpy(item->data, data, size); - } - - le = r->items.Flink; - while (le != &r->items) { - btrfs_item* i2 = CONTAINING_RECORD(le, btrfs_item, list_entry); - - if (keycmp(item->key, i2->key) != 1) { - InsertTailList(le, &item->list_entry); - return; - } - - le = le->Flink; - } - - InsertTailList(&r->items, &item->list_entry); -} - -static UINT64 find_chunk_offset(UINT64 size, UINT64 offset, btrfs_dev* dev, btrfs_root* dev_root, BTRFS_UUID* chunkuuid) { - UINT64 off; - DEV_EXTENT de; - - off = dev->last_alloc; - dev->last_alloc += size; - - dev->dev_item.bytes_used += size; - - de.chunktree = BTRFS_ROOT_CHUNK; - de.objid = 0x100; - de.address = offset; - de.length = size; - de.chunktree_uuid = *chunkuuid; - - add_item(dev_root, dev->dev_item.dev_id, TYPE_DEV_EXTENT, off, &de, sizeof(DEV_EXTENT)); - - return off; -} - -static btrfs_chunk* add_chunk(LIST_ENTRY* chunks, UINT64 flags, btrfs_root* chunk_root, btrfs_dev* dev, btrfs_root* dev_root, BTRFS_UUID* chunkuuid, UINT32 sector_size) { - UINT64 off, size; - UINT16 stripes, i; - btrfs_chunk* c; - LIST_ENTRY* le; - CHUNK_ITEM_STRIPE* cis; - - off = 0xc00000; - le = chunks->Flink; - while (le != chunks) { - c = CONTAINING_RECORD(le, btrfs_chunk, list_entry); - - if (c->offset + c->chunk_item->size > off) - off = c->offset + c->chunk_item->size; - - le = le->Flink; - } - - if (flags & BLOCK_FLAG_METADATA) { - if (dev->dev_item.num_bytes > 0xC80000000) // 50 GB - size = 0x40000000; // 1 GB - else - size = 0x10000000; // 256 MB - } else if (flags & BLOCK_FLAG_SYSTEM) - size = 0x800000; - - size = min(size, dev->dev_item.num_bytes / 10); // cap at 10% - size &= ~(sector_size - 1); - - stripes = flags & BLOCK_FLAG_DUPLICATE ? 2 : 1; - - if (dev->dev_item.num_bytes - dev->dev_item.bytes_used < stripes * size) // not enough space - return NULL; - -#ifndef __REACTOS__ - c = malloc(sizeof(btrfs_chunk)); -#else - c = RtlAllocateHeap(RtlGetProcessHeap(), 0, sizeof(btrfs_chunk)); -#endif - c->offset = off; - c->lastoff = off; - c->used = 0; - -#ifndef __REACTOS__ - c->chunk_item = malloc(sizeof(CHUNK_ITEM) + (stripes * sizeof(CHUNK_ITEM_STRIPE))); -#else - c->chunk_item = RtlAllocateHeap(RtlGetProcessHeap(), 0, sizeof(CHUNK_ITEM) + (stripes * sizeof(CHUNK_ITEM_STRIPE))); -#endif - - c->chunk_item->size = size; - c->chunk_item->root_id = BTRFS_ROOT_EXTENT; - c->chunk_item->stripe_length = 0x10000; - c->chunk_item->type = flags; - c->chunk_item->opt_io_alignment = 0x10000; - c->chunk_item->opt_io_width = 0x10000; - c->chunk_item->sector_size = sector_size; - c->chunk_item->num_stripes = stripes; - c->chunk_item->sub_stripes = 0; - - cis = (CHUNK_ITEM_STRIPE*)&c->chunk_item[1]; - - for (i = 0; i < stripes; i++) { - cis[i].dev_id = dev->dev_item.dev_id; - cis[i].offset = find_chunk_offset(size, c->offset, dev, dev_root, chunkuuid); - cis[i].dev_uuid = dev->dev_item.device_uuid; - } - - add_item(chunk_root, 0x100, TYPE_CHUNK_ITEM, c->offset, c->chunk_item, sizeof(CHUNK_ITEM) + (stripes * sizeof(CHUNK_ITEM_STRIPE))); - - InsertTailList(chunks, &c->list_entry); - - return c; -} - -static BOOL superblock_collision(btrfs_chunk* c, UINT64 address) { - CHUNK_ITEM_STRIPE* cis = (CHUNK_ITEM_STRIPE*)&c->chunk_item[1]; - UINT64 stripe = (address - c->offset) / c->chunk_item->stripe_length; - UINT16 i, j; - - for (i = 0; i < c->chunk_item->num_stripes; i++) { - j = 0; - while (superblock_addrs[j] != 0) { - if (superblock_addrs[j] >= cis[i].offset) { - UINT64 stripe2 = (superblock_addrs[j] - cis[i].offset) / c->chunk_item->stripe_length; - - if (stripe2 == stripe) - return TRUE; - } - j++; - } - } - - return FALSE; -} - -static UINT64 get_next_address(btrfs_chunk* c) { - UINT64 addr; - - addr = c->lastoff; - - while (superblock_collision(c, addr)) { - addr = addr - ((addr - c->offset) % c->chunk_item->stripe_length) + c->chunk_item->stripe_length; - - if (addr >= c->offset + c->chunk_item->size) // chunk has been exhausted - return 0; - } - - return addr; -} - -typedef struct { - EXTENT_ITEM ei; - UINT8 type; - TREE_BLOCK_REF tbr; -} EXTENT_ITEM_METADATA; - -static void assign_addresses(LIST_ENTRY* roots, btrfs_chunk* sys_chunk, btrfs_chunk* metadata_chunk, UINT32 node_size, - btrfs_root* root_root, btrfs_root* extent_root) { - LIST_ENTRY* le; - - le = roots->Flink; - while (le != roots) { - btrfs_root* r = CONTAINING_RECORD(le, btrfs_root, list_entry); - btrfs_chunk* c = r->id == BTRFS_ROOT_CHUNK ? sys_chunk : metadata_chunk; - EXTENT_ITEM_METADATA eim; - - r->header.address = get_next_address(c); - r->c = c; - c->lastoff = r->header.address + node_size; - c->used += node_size; - - eim.ei.refcount = 1; - eim.ei.generation = 1; - eim.ei.flags = EXTENT_ITEM_TREE_BLOCK; - eim.type = TYPE_TREE_BLOCK_REF; - eim.tbr.offset = r->id; - - // FIXME - support non-skinny EXTENT_ITEM - add_item(extent_root, r->header.address, TYPE_METADATA_ITEM, 0, &eim, sizeof(EXTENT_ITEM_METADATA)); - - if (r->id != BTRFS_ROOT_ROOT && r->id != BTRFS_ROOT_CHUNK) { - ROOT_ITEM ri; - - memset(&ri, 0, sizeof(ROOT_ITEM)); - - ri.inode.generation = 1; - ri.inode.st_size = 3; - ri.inode.st_blocks = node_size; - ri.inode.st_nlink = 1; - ri.inode.st_mode = 040755; - ri.generation = 1; - ri.objid = r->id == 5 || r->id >= 0x100 ? SUBVOL_ROOT_INODE : 0; - ri.block_number = r->header.address; - ri.bytes_used = node_size; - ri.num_references = 1; - ri.generation2 = ri.generation; - - add_item(root_root, r->id, TYPE_ROOT_ITEM, 0, &ri, sizeof(ROOT_ITEM)); - } - - le = le->Flink; - } -} - -static NTSTATUS write_data(HANDLE h, UINT64 address, btrfs_chunk* c, void* data, ULONG size) { - NTSTATUS Status; - UINT16 i; - IO_STATUS_BLOCK iosb; - LARGE_INTEGER off; - CHUNK_ITEM_STRIPE* cis; - - cis = (CHUNK_ITEM_STRIPE*)&c->chunk_item[1]; - - for (i = 0; i < c->chunk_item->num_stripes; i++) { - off.QuadPart = cis[i].offset + address - c->offset; - - Status = NtWriteFile(h, NULL, NULL, NULL, &iosb, data, size, &off, NULL); - if (!NT_SUCCESS(Status)) - return Status; - } - - return STATUS_SUCCESS; -} - -static NTSTATUS write_roots(HANDLE h, LIST_ENTRY* roots, UINT32 node_size, BTRFS_UUID* fsuuid, BTRFS_UUID* chunkuuid) { - LIST_ENTRY *le, *le2; - NTSTATUS Status; - UINT8* tree; - -#ifndef __REACTOS__ - tree = malloc(node_size); -#else - tree = RtlAllocateHeap(RtlGetProcessHeap(), 0, node_size); -#endif - - le = roots->Flink; - while (le != roots) { - btrfs_root* r = CONTAINING_RECORD(le, btrfs_root, list_entry); - UINT8* dp; - leaf_node* ln; - UINT32 crc32; - - memset(tree, 0, node_size); - - r->header.num_items = 0; - r->header.fs_uuid = *fsuuid; - r->header.flags = HEADER_FLAG_MIXED_BACKREF | HEADER_FLAG_WRITTEN; - r->header.chunk_tree_uuid = *chunkuuid; - r->header.generation = 1; - r->header.tree_id = r->id; - - ln = (leaf_node*)(tree + sizeof(tree_header)); - - dp = tree + node_size; - - le2 = r->items.Flink; - while (le2 != &r->items) { - btrfs_item* item = CONTAINING_RECORD(le2, btrfs_item, list_entry); - - ln->key = item->key; - ln->size = item->size; - - if (item->size > 0) { - dp -= item->size; - memcpy(dp, item->data, item->size); - - ln->offset = dp - tree - sizeof(tree_header); - } else - ln->offset = 0; - - ln = &ln[1]; - - r->header.num_items++; - - le2 = le2->Flink; - } - - memcpy(tree, &r->header, sizeof(tree_header)); - - crc32 = ~calc_crc32c(0xffffffff, (UINT8*)&((tree_header*)tree)->fs_uuid, node_size - sizeof(((tree_header*)tree)->csum)); - memcpy(tree, &crc32, sizeof(UINT32)); - - Status = write_data(h, r->header.address, r->c, tree, node_size); - if (!NT_SUCCESS(Status)) { -#ifndef __REACTOS__ - free(tree); -#else - RtlFreeHeap(RtlGetProcessHeap(), 0, tree); -#endif - return Status; - } - - le = le->Flink; - } - -#ifndef __REACTOS__ - free(tree); -#else - RtlFreeHeap(RtlGetProcessHeap(), 0, tree); -#endif - - return STATUS_SUCCESS; -} - -#ifndef __REACTOS__ -static void get_uuid(BTRFS_UUID* uuid) { -#else -static void get_uuid(BTRFS_UUID* uuid, ULONG* seed) { -#endif - UINT8 i; - - for (i = 0; i < 16; i+=2) { -#ifndef __REACTOS__ - ULONG r = rand(); -#else - ULONG r = RtlRandom(seed); -#endif - - uuid->uuid[i] = (r & 0xff00) >> 8; - uuid->uuid[i+1] = r & 0xff; - } -} - -#ifndef __REACTOS__ -static void init_device(btrfs_dev* dev, UINT64 id, UINT64 size, BTRFS_UUID* fsuuid, UINT32 sector_size) { -#else -static void init_device(btrfs_dev* dev, UINT64 id, UINT64 size, BTRFS_UUID* fsuuid, UINT32 sector_size, ULONG* seed) { -#endif - dev->dev_item.dev_id = id; - dev->dev_item.num_bytes = size; - dev->dev_item.bytes_used = 0; - dev->dev_item.optimal_io_align = sector_size; - dev->dev_item.optimal_io_width = sector_size; - dev->dev_item.minimal_io_size = sector_size; - dev->dev_item.type = 0; - dev->dev_item.generation = 0; - dev->dev_item.start_offset = 0; - dev->dev_item.dev_group = 0; - dev->dev_item.seek_speed = 0; - dev->dev_item.bandwidth = 0; -#ifndef __REACTOS__ - get_uuid(&dev->dev_item.device_uuid); -#else - get_uuid(&dev->dev_item.device_uuid, seed); -#endif - dev->dev_item.fs_uuid = *fsuuid; - - dev->last_alloc = 0x100000; // skip first megabyte -} - -#ifdef __REACTOS__ -NTSTATUS NTAPI RtlUnicodeToUTF8N(CHAR *utf8_dest, ULONG utf8_bytes_max, - ULONG *utf8_bytes_written, - const WCHAR *uni_src, ULONG uni_bytes) -{ - NTSTATUS status; - ULONG i; - ULONG written; - ULONG ch; - BYTE utf8_ch[4]; - ULONG utf8_ch_len; - - if (!uni_src) - return STATUS_INVALID_PARAMETER_4; - if (!utf8_bytes_written) - return STATUS_INVALID_PARAMETER; - if (utf8_dest && uni_bytes % sizeof(WCHAR)) - return STATUS_INVALID_PARAMETER_5; - - written = 0; - status = STATUS_SUCCESS; - - for (i = 0; i < uni_bytes / sizeof(WCHAR); i++) - { - /* decode UTF-16 into ch */ - ch = uni_src[i]; - if (ch >= 0xdc00 && ch <= 0xdfff) - { - ch = 0xfffd; - status = STATUS_SOME_NOT_MAPPED; - } - else if (ch >= 0xd800 && ch <= 0xdbff) - { - if (i + 1 < uni_bytes / sizeof(WCHAR)) - { - ch -= 0xd800; - ch <<= 10; - if (uni_src[i + 1] >= 0xdc00 && uni_src[i + 1] <= 0xdfff) - { - ch |= uni_src[i + 1] - 0xdc00; - ch += 0x010000; - i++; - } - else - { - ch = 0xfffd; - status = STATUS_SOME_NOT_MAPPED; - } - } - else - { - ch = 0xfffd; - status = STATUS_SOME_NOT_MAPPED; - } - } - - /* encode ch as UTF-8 */ - ASSERT(ch <= 0x10ffff); - if (ch < 0x80) - { - utf8_ch[0] = ch & 0x7f; - utf8_ch_len = 1; - } - else if (ch < 0x800) - { - utf8_ch[0] = 0xc0 | (ch >> 6 & 0x1f); - utf8_ch[1] = 0x80 | (ch >> 0 & 0x3f); - utf8_ch_len = 2; - } - else if (ch < 0x10000) - { - utf8_ch[0] = 0xe0 | (ch >> 12 & 0x0f); - utf8_ch[1] = 0x80 | (ch >> 6 & 0x3f); - utf8_ch[2] = 0x80 | (ch >> 0 & 0x3f); - utf8_ch_len = 3; - } - else if (ch < 0x200000) - { - utf8_ch[0] = 0xf0 | (ch >> 18 & 0x07); - utf8_ch[1] = 0x80 | (ch >> 12 & 0x3f); - utf8_ch[2] = 0x80 | (ch >> 6 & 0x3f); - utf8_ch[3] = 0x80 | (ch >> 0 & 0x3f); - utf8_ch_len = 4; - } - - if (!utf8_dest) - { - written += utf8_ch_len; - continue; - } - - if (utf8_bytes_max >= utf8_ch_len) - { - memcpy(utf8_dest, utf8_ch, utf8_ch_len); - utf8_dest += utf8_ch_len; - utf8_bytes_max -= utf8_ch_len; - written += utf8_ch_len; - } - else - { - utf8_bytes_max = 0; - status = STATUS_BUFFER_TOO_SMALL; - } - } - - *utf8_bytes_written = written; - return status; -} -#endif - -static NTSTATUS write_superblocks(HANDLE h, btrfs_dev* dev, btrfs_root* chunk_root, btrfs_root* root_root, btrfs_root* extent_root, - btrfs_chunk* sys_chunk, UINT32 node_size, BTRFS_UUID* fsuuid, UINT32 sector_size, PUNICODE_STRING label) { - NTSTATUS Status; - IO_STATUS_BLOCK iosb; - ULONG sblen; - int i; - UINT32 crc32; - superblock* sb; - KEY* key; - UINT64 bytes_used; - LIST_ENTRY* le; - - sblen = sizeof(sb); - if (sblen & (sector_size - 1)) - sblen = (sblen & sector_size) + sector_size; - - bytes_used = 0; - - le = extent_root->items.Flink; - while (le != &extent_root->items) { - btrfs_item* item = CONTAINING_RECORD(le, btrfs_item, list_entry); - - if (item->key.obj_type == TYPE_EXTENT_ITEM) - bytes_used += item->key.offset; - else if (item->key.obj_type == TYPE_METADATA_ITEM) - bytes_used += node_size; - - le = le->Flink; - } - -#ifndef __REACTOS__ - sb = malloc(sblen); - memset(sb, 0, sblen); -#else - sb = RtlAllocateHeap(RtlGetProcessHeap(), HEAP_ZERO_MEMORY, sblen); -#endif - - sb->uuid = *fsuuid; - sb->flags = 1; - sb->magic = BTRFS_MAGIC; - sb->generation = 1; - sb->root_tree_addr = root_root->header.address; - sb->chunk_tree_addr = chunk_root->header.address; - sb->total_bytes = dev->dev_item.num_bytes; - sb->bytes_used = bytes_used; - sb->root_dir_objectid = 6; - sb->num_devices = 1; - sb->sector_size = sector_size; - sb->node_size = node_size; - sb->leaf_size = node_size; - sb->stripe_size = sector_size; - sb->n = sizeof(KEY) + sizeof(CHUNK_ITEM) + (sys_chunk->chunk_item->num_stripes * sizeof(CHUNK_ITEM_STRIPE)); - sb->chunk_root_generation = 1; - sb->incompat_flags = BTRFS_INCOMPAT_FLAGS_MIXED_BACKREF | BTRFS_INCOMPAT_FLAGS_EXTENDED_IREF | BTRFS_INCOMPAT_FLAGS_SKINNY_METADATA; - memcpy(&sb->dev_item, &dev->dev_item, sizeof(DEV_ITEM)); - - if (label->Length > 0) { - int i; - ULONG utf8len; - - for (i = 0; i < label->Length / sizeof(WCHAR); i++) { - if (label->Buffer[i] == '/' || label->Buffer[i] == '\') { -#ifndef __REACTOS__ - free(sb); -#else - RtlFreeHeap(RtlGetProcessHeap(), 0, sb); -#endif - return STATUS_INVALID_VOLUME_LABEL; - } - } - - Status = RtlUnicodeToUTF8N(NULL, 0, &utf8len, label->Buffer, label->Length); - if (!NT_SUCCESS(Status)) { -#ifndef __REACTOS__ - free(sb); -#else - RtlFreeHeap(RtlGetProcessHeap(), 0, sb); -#endif - return Status; - } - - if (utf8len > MAX_LABEL_SIZE) { -#ifndef __REACTOS__ - free(sb); -#else - RtlFreeHeap(RtlGetProcessHeap(), 0, sb); -#endif - return STATUS_INVALID_VOLUME_LABEL; - } - - Status = RtlUnicodeToUTF8N((PCHAR)&sb->label, MAX_LABEL_SIZE, &utf8len, label->Buffer, label->Length); - if (!NT_SUCCESS(Status)) { -#ifndef __REACTOS__ - free(sb); -#else - RtlFreeHeap(RtlGetProcessHeap(), 0, sb); -#endif - return Status; - } - } - sb->cache_generation = 0xffffffffffffffff; - - key = (KEY*)sb->sys_chunk_array; - key->obj_id = 0x100; - key->obj_type = TYPE_CHUNK_ITEM; - key->offset = sys_chunk->offset; - memcpy(&key[1], sys_chunk->chunk_item, sizeof(CHUNK_ITEM) + (sys_chunk->chunk_item->num_stripes * sizeof(CHUNK_ITEM_STRIPE))); - - i = 0; - while (superblock_addrs[i] != 0) { - LARGE_INTEGER off; - - if (superblock_addrs[i] > dev->dev_item.num_bytes) - break; - - sb->sb_phys_addr = superblock_addrs[i]; - - crc32 = ~calc_crc32c(0xffffffff, (UINT8*)&sb->uuid, (ULONG)sizeof(superblock) - sizeof(sb->checksum)); - memcpy(&sb->checksum, &crc32, sizeof(UINT32)); - - off.QuadPart = superblock_addrs[i]; - - Status = NtWriteFile(h, NULL, NULL, NULL, &iosb, sb, sblen, &off, NULL); - if (!NT_SUCCESS(Status)) { -#ifndef __REACTOS__ - free(sb); -#else - RtlFreeHeap(RtlGetProcessHeap(), 0, sb); -#endif - return Status; - } - - i++; - } - -#ifndef __REACTOS__ - free(sb); -#else - RtlFreeHeap(RtlGetProcessHeap(), 0, sb); -#endif - - return STATUS_SUCCESS; -} - -static __inline void win_time_to_unix(LARGE_INTEGER t, BTRFS_TIME* out) { - ULONGLONG l = t.QuadPart - 116444736000000000; - - out->seconds = l / 10000000; - out->nanoseconds = (l % 10000000) * 100; -} - -#ifdef __REACTOS__ -VOID -WINAPI -GetSystemTimeAsFileTime(OUT PFILETIME lpFileTime) -{ - LARGE_INTEGER SystemTime; - - do - { - SystemTime.HighPart = SharedUserData->SystemTime.High1Time; - SystemTime.LowPart = SharedUserData->SystemTime.LowPart; - } - while (SystemTime.HighPart != SharedUserData->SystemTime.High2Time); - - lpFileTime->dwLowDateTime = SystemTime.LowPart; - lpFileTime->dwHighDateTime = SystemTime.HighPart; -} -#endif - -static void init_fs_tree(btrfs_root* r, UINT32 node_size) { - INODE_ITEM ii; - INODE_REF* ir; -#ifndef __REACTOS__ - SYSTEMTIME systime; -#endif - FILETIME filetime; - LARGE_INTEGER time; - - memset(&ii, 0, sizeof(INODE_ITEM)); - - ii.generation = 1; - ii.st_blocks = node_size; - ii.st_nlink = 1; - ii.st_mode = 040755; - -#ifndef __REACTOS__ - GetSystemTime(&systime); - SystemTimeToFileTime(&systime, &filetime); -#else - GetSystemTimeAsFileTime(&filetime); -#endif - time.LowPart = filetime.dwLowDateTime; - time.HighPart = filetime.dwHighDateTime; - - win_time_to_unix(time, &ii.st_atime); - ii.st_ctime = ii.st_mtime = ii.st_atime; - - add_item(r, SUBVOL_ROOT_INODE, TYPE_INODE_ITEM, 0, &ii, sizeof(INODE_ITEM)); - -#ifndef __REACTOS__ - ir = malloc(sizeof(INODE_REF) - 1 + 2); -#else - ir = RtlAllocateHeap(RtlGetProcessHeap(), 0, sizeof(INODE_REF) - 1 + 2); -#endif - - ir->index = 0; - ir->n = 2; - ir->name[0] = '.'; - ir->name[1] = '.'; - - add_item(r, SUBVOL_ROOT_INODE, TYPE_INODE_REF, SUBVOL_ROOT_INODE, ir, sizeof(INODE_REF) - 1 + ir->n); - -#ifndef __REACTOS__ - free(ir); -#else - RtlFreeHeap(RtlGetProcessHeap(), 0, ir); -#endif -} - -static void add_block_group_items(LIST_ENTRY* chunks, btrfs_root* extent_root) { - LIST_ENTRY* le; - - le = chunks->Flink; - while (le != chunks) { - btrfs_chunk* c = CONTAINING_RECORD(le, btrfs_chunk, list_entry); - BLOCK_GROUP_ITEM bgi; - - bgi.used = c->used; - bgi.chunk_tree = 0x100; - bgi.flags = c->chunk_item->type; - add_item(extent_root, c->offset, TYPE_BLOCK_GROUP_ITEM, c->chunk_item->size, &bgi, sizeof(BLOCK_GROUP_ITEM)); - - le = le->Flink; - } -} - -static NTSTATUS clear_first_megabyte(HANDLE h) { - NTSTATUS Status; - IO_STATUS_BLOCK iosb; - LARGE_INTEGER zero; - UINT8* mb; - -#ifndef __REACTOS__ - mb = malloc(0x100000); -#else - mb = RtlAllocateHeap(RtlGetProcessHeap(), 0, 0x100000); -#endif - memset(mb, 0, 0x100000); - - zero.QuadPart = 0; - - Status = NtWriteFile(h, NULL, NULL, NULL, &iosb, mb, 0x100000, &zero, NULL); - -#ifndef __REACTOS__ - free(mb); -#else - RtlFreeHeap(RtlGetProcessHeap(), 0, mb); -#endif - - return Status; -} - -static BOOL is_ssd(HANDLE h) { - ULONG aptelen; - ATA_PASS_THROUGH_EX* apte; - IO_STATUS_BLOCK iosb; - NTSTATUS Status; - IDENTIFY_DEVICE_DATA* idd; - - aptelen = sizeof(ATA_PASS_THROUGH_EX) + 512; -#ifndef __REACTOS__ - apte = malloc(aptelen); - - RtlZeroMemory(apte, aptelen); -#else - apte = RtlAllocateHeap(RtlGetProcessHeap(), HEAP_ZERO_MEMORY, aptelen); -#endif - - apte->Length = sizeof(ATA_PASS_THROUGH_EX); - apte->AtaFlags = ATA_FLAGS_DATA_IN; - apte->DataTransferLength = aptelen - sizeof(ATA_PASS_THROUGH_EX); - apte->TimeOutValue = 3; - apte->DataBufferOffset = apte->Length; - apte->CurrentTaskFile[6] = IDE_COMMAND_IDENTIFY; - - Status = NtDeviceIoControlFile(h, NULL, NULL, NULL, &iosb, IOCTL_ATA_PASS_THROUGH, apte, aptelen, apte, aptelen); - - if (NT_SUCCESS(Status)) { - idd = (IDENTIFY_DEVICE_DATA*)((UINT8*)apte + sizeof(ATA_PASS_THROUGH_EX)); - - if (idd->NominalMediaRotationRate == 1) - return TRUE; - } - - return FALSE; -} - -static NTSTATUS write_btrfs(HANDLE h, UINT64 size, PUNICODE_STRING label, UINT32 sector_size) { - NTSTATUS Status; - UINT32 node_size; - LIST_ENTRY roots, chunks; - btrfs_root *root_root, *chunk_root, *extent_root, *dev_root, *fs_root, *reloc_root; - btrfs_chunk *sys_chunk, *metadata_chunk; - btrfs_dev dev; - BTRFS_UUID fsuuid, chunkuuid; - BOOL ssd; -#ifdef __REACTOS__ - ULONG seed; -#endif - -#ifndef __REACTOS__ - srand(time(0)); - get_uuid(&fsuuid); - get_uuid(&chunkuuid); -#else - seed = NtGetTickCount(); - get_uuid(&fsuuid, &seed); - get_uuid(&chunkuuid, &seed); -#endif - - InitializeListHead(&roots); - InitializeListHead(&chunks); - - root_root = add_root(&roots, BTRFS_ROOT_ROOT); - chunk_root = add_root(&roots, BTRFS_ROOT_CHUNK); - extent_root = add_root(&roots, BTRFS_ROOT_EXTENT); - dev_root = add_root(&roots, BTRFS_ROOT_DEVTREE); - add_root(&roots, BTRFS_ROOT_CHECKSUM); - fs_root = add_root(&roots, BTRFS_ROOT_FSTREE); - reloc_root = add_root(&roots, BTRFS_ROOT_DATA_RELOC); - -#ifndef __REACTOS__ - init_device(&dev, 1, size, &fsuuid, sector_size); -#else - init_device(&dev, 1, size, &fsuuid, sector_size, &seed); -#endif - - ssd = is_ssd(h); - - sys_chunk = add_chunk(&chunks, BLOCK_FLAG_SYSTEM | (ssd ? 0 : BLOCK_FLAG_DUPLICATE), chunk_root, &dev, dev_root, &chunkuuid, sector_size); - if (!sys_chunk) - return STATUS_INTERNAL_ERROR; - - metadata_chunk = add_chunk(&chunks, BLOCK_FLAG_METADATA | (ssd ? 0 : BLOCK_FLAG_DUPLICATE), chunk_root, &dev, dev_root, &chunkuuid, sector_size); - if (!metadata_chunk) - return STATUS_INTERNAL_ERROR; - - node_size = 0x4000; - assign_addresses(&roots, sys_chunk, metadata_chunk, node_size, root_root, extent_root); - - add_item(chunk_root, 1, TYPE_DEV_ITEM, dev.dev_item.dev_id, &dev.dev_item, sizeof(DEV_ITEM)); - - init_fs_tree(fs_root, node_size); - init_fs_tree(reloc_root, node_size); - - add_block_group_items(&chunks, extent_root); - - Status = write_roots(h, &roots, node_size, &fsuuid, &chunkuuid); - if (!NT_SUCCESS(Status)) - return Status; - - Status = clear_first_megabyte(h); - if (!NT_SUCCESS(Status)) - return Status; - - Status = write_superblocks(h, &dev, chunk_root, root_root, extent_root, sys_chunk, node_size, &fsuuid, sector_size, label); - if (!NT_SUCCESS(Status)) - return Status; - - free_roots(&roots); - free_chunks(&chunks); - - return STATUS_SUCCESS; -} - -static BOOL look_for_device(btrfs_filesystem* bfs, BTRFS_UUID* devuuid) { - UINT32 i; - btrfs_filesystem_device* dev; - - for (i = 0; i < bfs->num_devices; i++) { - if (i == 0) - dev = &bfs->device; - else - dev = (btrfs_filesystem_device*)((UINT8*)dev + offsetof(btrfs_filesystem_device, name[0]) + dev->name_length); - - if (RtlCompareMemory(&dev->uuid, devuuid, sizeof(BTRFS_UUID)) == sizeof(BTRFS_UUID)) - return TRUE; - } - - return FALSE; -} - -static BOOL is_mounted_multi_device(HANDLE h, UINT32 sector_size) { - NTSTATUS Status; - superblock* sb; - ULONG sblen; - IO_STATUS_BLOCK iosb; - LARGE_INTEGER off; - BTRFS_UUID fsuuid, devuuid; - UINT32 crc32; - UNICODE_STRING us; - OBJECT_ATTRIBUTES atts; - HANDLE h2; - btrfs_filesystem *bfs = NULL, *bfs2; - ULONG bfssize; - BOOL ret = FALSE; - - static WCHAR btrfs[] = L"\Btrfs"; - - sblen = sizeof(sb); - if (sblen & (sector_size - 1)) - sblen = (sblen & sector_size) + sector_size; - -#ifndef __REACTOS__ - sb = malloc(sblen); -#else - sb = RtlAllocateHeap(RtlGetProcessHeap(), 0, sblen); -#endif - - off.QuadPart = superblock_addrs[0]; - - Status = NtReadFile(h, NULL, NULL, NULL, &iosb, sb, sblen, &off, NULL); - if (!NT_SUCCESS(Status)) { -#ifndef __REACTOS__ - free(sb); -#else - RtlFreeHeap(RtlGetProcessHeap(), 0, sb); -#endif - return FALSE; - } - - if (sb->magic != BTRFS_MAGIC) { -#ifndef __REACTOS__ - free(sb); -#else - RtlFreeHeap(RtlGetProcessHeap(), 0, sb); -#endif - return FALSE; - } - - crc32 = ~calc_crc32c(0xffffffff, (UINT8*)&sb->uuid, (ULONG)sizeof(superblock) - sizeof(sb->checksum)); - if (crc32 != *((UINT32*)sb)) { -#ifndef __REACTOS__ - free(sb); -#else - RtlFreeHeap(RtlGetProcessHeap(), 0, sb); -#endif - return FALSE; - } - - fsuuid = sb->uuid; - devuuid = sb->dev_item.device_uuid; - -#ifndef __REACTOS__ - free(sb); -#else - RtlFreeHeap(RtlGetProcessHeap(), 0, sb); -#endif - - us.Length = us.MaximumLength = wcslen(btrfs) * sizeof(WCHAR); - us.Buffer = btrfs; - - InitializeObjectAttributes(&atts, &us, 0, NULL, NULL); - - Status = NtOpenFile(&h2, SYNCHRONIZE | FILE_READ_ATTRIBUTES, &atts, &iosb, - FILE_SHARE_READ | FILE_SHARE_WRITE, FILE_SYNCHRONOUS_IO_ALERT); - if (!NT_SUCCESS(Status)) // not a problem, it usually just means the driver isn't loaded - return FALSE; - - bfssize = 0; - - do { - bfssize += 1024; - -#ifndef __REACTOS__ - if (bfs) free(bfs); - bfs = malloc(bfssize); -#else - if (bfs) RtlFreeHeap(RtlGetProcessHeap(), 0, bfs); - bfs = RtlAllocateHeap(RtlGetProcessHeap(), 0, bfssize); -#endif - - Status = NtDeviceIoControlFile(h2, NULL, NULL, NULL, &iosb, IOCTL_BTRFS_QUERY_FILESYSTEMS, NULL, 0, bfs, bfssize); - if (!NT_SUCCESS(Status) && Status != STATUS_BUFFER_OVERFLOW) { - NtClose(h2); - return FALSE; - } - } while (Status == STATUS_BUFFER_OVERFLOW); - - if (!NT_SUCCESS(Status)) - goto end; - - if (bfs->num_devices != 0) { - bfs2 = bfs; - while (TRUE) { - if (RtlCompareMemory(&bfs2->uuid, &fsuuid, sizeof(BTRFS_UUID)) == sizeof(BTRFS_UUID)) { - if (bfs2->num_devices == 1) - ret = FALSE; - else - ret = look_for_device(bfs2, &devuuid); - - goto end; - } - - if (bfs2->next_entry == 0) - break; - else - bfs2 = (btrfs_filesystem*)((UINT8*)bfs2 + bfs2->next_entry); - } - } - -end: - NtClose(h2); - - if (bfs) -#ifndef __REACTOS__ - free(bfs); -#else - RtlFreeHeap(RtlGetProcessHeap(), 0, bfs); -#endif - - return ret; -} - -static void add_drive_letter(HANDLE h) { - NTSTATUS Status; - IO_STATUS_BLOCK iosb; - MOUNTDEV_NAME mdn, *mdn2; - UNICODE_STRING us; - OBJECT_ATTRIBUTES attr; - HANDLE mountmgr; - MOUNTMGR_DRIVE_LETTER_INFORMATION mdli; - - Status = NtDeviceIoControlFile(h, NULL, NULL, NULL, &iosb, IOCTL_MOUNTDEV_QUERY_DEVICE_NAME, NULL, 0, &mdn, sizeof(mdn)); - if (!NT_SUCCESS(Status) && Status != STATUS_BUFFER_OVERFLOW) - return; - -#ifndef __REACTOS__ - mdn2 = malloc(offsetof(MOUNTDEV_NAME, Name[0]) + mdn.NameLength); -#else - mdn2 = RtlAllocateHeap(RtlGetProcessHeap(), 0, offsetof(MOUNTDEV_NAME, Name[0]) + mdn.NameLength); -#endif - - Status = NtDeviceIoControlFile(h, NULL, NULL, NULL, &iosb, IOCTL_MOUNTDEV_QUERY_DEVICE_NAME, NULL, 0, mdn2, offsetof(MOUNTDEV_NAME, Name[0]) + mdn.NameLength); - if (!NT_SUCCESS(Status)) - goto end; - - RtlInitUnicodeString(&us, MOUNTMGR_DEVICE_NAME); - InitializeObjectAttributes(&attr, &us, 0, NULL, NULL); - - Status = NtOpenFile(&mountmgr, FILE_GENERIC_READ | FILE_GENERIC_WRITE, &attr, &iosb, - FILE_SHARE_READ, FILE_SYNCHRONOUS_IO_ALERT); - - if (!NT_SUCCESS(Status)) - goto end; - - // MOUNTDEV_NAME is identical to MOUNTMGR_TARGET_NAME - Status = NtDeviceIoControlFile(mountmgr, NULL, NULL, NULL, &iosb, IOCTL_MOUNTMGR_VOLUME_ARRIVAL_NOTIFICATION, - mdn2, offsetof(MOUNTDEV_NAME, Name[0]) + mdn.NameLength, NULL, 0); - if (!NT_SUCCESS(Status)) - goto end2; - - // MOUNTDEV_NAME is identical to MOUNTMGR_DRIVE_LETTER_TARGET - Status = NtDeviceIoControlFile(mountmgr, NULL, NULL, NULL, &iosb, IOCTL_MOUNTMGR_NEXT_DRIVE_LETTER, - mdn2, offsetof(MOUNTDEV_NAME, Name[0]) + mdn.NameLength, &mdli, sizeof(mdli)); - if (!NT_SUCCESS(Status)) - goto end2; - -end2: - NtClose(mountmgr); - -end: -#ifndef __REACTOS__ - free(mdn2); -#else - RtlFreeHeap(RtlGetProcessHeap(), 0, mdn2); -#endif -} - -NTSTATUS NTAPI FormatEx(PUNICODE_STRING DriveRoot, FMIFS_MEDIA_FLAG MediaFlag, PUNICODE_STRING Label, - BOOLEAN QuickFormat, ULONG ClusterSize, PFMIFSCALLBACK Callback) -{ - NTSTATUS Status; - HANDLE h; - OBJECT_ATTRIBUTES attr; - IO_STATUS_BLOCK iosb; - GET_LENGTH_INFORMATION gli; - DISK_GEOMETRY_EX dgex; - UINT32 sector_size; - - InitializeObjectAttributes(&attr, DriveRoot, 0, NULL, NULL); - - Status = NtOpenFile(&h, FILE_GENERIC_READ | FILE_GENERIC_WRITE, &attr, &iosb, - FILE_SHARE_READ, FILE_SYNCHRONOUS_IO_ALERT); - - if (!NT_SUCCESS(Status)) - return Status; - - Status = NtDeviceIoControlFile(h, NULL, NULL, NULL, &iosb, IOCTL_DISK_GET_LENGTH_INFO, NULL, 0, &gli, sizeof(gli)); - if (!NT_SUCCESS(Status)) { - NtClose(h); - return Status; - } - - Status = NtDeviceIoControlFile(h, NULL, NULL, NULL, &iosb, IOCTL_DISK_GET_DRIVE_GEOMETRY_EX, NULL, 0, &dgex, sizeof(dgex)); - if (!NT_SUCCESS(Status)) { - NtClose(h); - return Status; - } - - sector_size = dgex.Geometry.BytesPerSector; - - if (sector_size == 0x200 || sector_size == 0) - sector_size = 0x1000; - - if (Callback) { - ULONG pc = 0; - Callback(PROGRESS, 0, (PVOID)&pc); - } - - NtFsControlFile(h, NULL, NULL, NULL, &iosb, FSCTL_LOCK_VOLUME, NULL, 0, NULL, 0); - - if (is_mounted_multi_device(h, sector_size)) { - Status = STATUS_ACCESS_DENIED; - goto end; - } - - Status = write_btrfs(h, gli.Length.QuadPart, Label, sector_size); - - NtFsControlFile(h, NULL, NULL, NULL, &iosb, FSCTL_DISMOUNT_VOLUME, NULL, 0, NULL, 0); - -end: - NtFsControlFile(h, NULL, NULL, NULL, &iosb, FSCTL_UNLOCK_VOLUME, NULL, 0, NULL, 0); - - if (NT_SUCCESS(Status)) - add_drive_letter(h); - - NtClose(h); - - if (Callback) { - BOOL success = NT_SUCCESS(Status); - Callback(DONE, 0, (PVOID)&success); - } - - return Status; -} - -BOOL APIENTRY DllMain(HANDLE hModule, DWORD dwReason, void* lpReserved) { - if (dwReason == DLL_PROCESS_ATTACH) - module = (HMODULE)hModule; - - return TRUE; -}
Modified: trunk/reactos/dll/win32/ubtrfs/ubtrfs.spec URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/ubtrfs/ubtrfs.spe... ============================================================================== --- trunk/reactos/dll/win32/ubtrfs/ubtrfs.spec [iso-8859-1] (original) +++ trunk/reactos/dll/win32/ubtrfs/ubtrfs.spec [iso-8859-1] Sun Jan 15 10:58:38 2017 @@ -1,2 +1,2 @@ -@ stdcall ChkdskEx(ptr long long long long ptr) -@ stdcall FormatEx(ptr long ptr long long ptr) +@ stdcall ChkdskEx(ptr long long long long ptr) BtrfsChkdskEx +@ stdcall FormatEx(ptr long ptr long long ptr) BtrfsFormatEx
Modified: trunk/reactos/media/doc/README.FSD URL: http://svn.reactos.org/svn/reactos/trunk/reactos/media/doc/README.FSD?rev=73... ============================================================================== --- trunk/reactos/media/doc/README.FSD [iso-8859-1] (original) +++ trunk/reactos/media/doc/README.FSD [iso-8859-1] Sun Jan 15 10:58:38 2017 @@ -5,7 +5,7 @@
reactos/drivers/filesystems/btrfs # Synced to 0.8 reactos/dll/shellext/shellbtrfs # Synced to 0.7 -reactos/dll/win32/ubtrfs # Synced to 0.8 +reactos/sdk/lib/fslib/btrfslib # Synced to 0.8
The following FSD are shared with: http://www.ext2fsd.com/
Modified: trunk/reactos/sdk/lib/fslib/CMakeLists.txt URL: http://svn.reactos.org/svn/reactos/trunk/reactos/sdk/lib/fslib/CMakeLists.tx... ============================================================================== --- trunk/reactos/sdk/lib/fslib/CMakeLists.txt [iso-8859-1] (original) +++ trunk/reactos/sdk/lib/fslib/CMakeLists.txt [iso-8859-1] Sun Jan 15 10:58:38 2017 @@ -1,4 +1,5 @@
+add_subdirectory(btrfslib) add_subdirectory(ext2lib) add_subdirectory(ffslib) add_subdirectory(ntfslib)
Added: trunk/reactos/sdk/lib/fslib/btrfslib/CMakeLists.txt URL: http://svn.reactos.org/svn/reactos/trunk/reactos/sdk/lib/fslib/btrfslib/CMak... ============================================================================== --- trunk/reactos/sdk/lib/fslib/btrfslib/CMakeLists.txt (added) +++ trunk/reactos/sdk/lib/fslib/btrfslib/CMakeLists.txt [iso-8859-1] Sun Jan 15 10:58:38 2017 @@ -0,0 +1,3 @@ + +add_library(btrfslib btrfslib.c) +add_dependencies(btrfslib psdk)
Propchange: trunk/reactos/sdk/lib/fslib/btrfslib/CMakeLists.txt ------------------------------------------------------------------------------ svn:eol-style = native
Added: trunk/reactos/sdk/lib/fslib/btrfslib/btrfslib.c URL: http://svn.reactos.org/svn/reactos/trunk/reactos/sdk/lib/fslib/btrfslib/btrf... ============================================================================== --- trunk/reactos/sdk/lib/fslib/btrfslib/btrfslib.c (added) +++ trunk/reactos/sdk/lib/fslib/btrfslib/btrfslib.c [iso-8859-1] Sun Jan 15 10:58:38 2017 @@ -0,0 +1,1473 @@ +/* Copyright (c) Mark Harmstone 2016 + * + * This file is part of WinBtrfs. + * + * WinBtrfs is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public Licence as published by + * the Free Software Foundation, either version 3 of the Licence, or + * (at your option) any later version. + * + * WinBtrfs is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public Licence for more details. + * + * You should have received a copy of the GNU Lesser General Public Licence + * along with WinBtrfs. If not, see http://www.gnu.org/licenses/. */ + +#include <stdlib.h> +#include <stddef.h> +#include <time.h> +#include <ntstatus.h> +#define WIN32_NO_STATUS +#include <windef.h> +#include <winbase.h> +#ifndef __REACTOS__ +#include <winternl.h> +#include <devioctl.h> +#include <ntdddisk.h> +#else +#include <ndk/iofuncs.h> +#include <ndk/obfuncs.h> +#include <ndk/rtlfuncs.h> +#endif +#include <ntddscsi.h> +#include <ata.h> +#include <mountmgr.h> +#ifdef __REACTOS__ +#include "../../drivers/filesystems/btrfs/btrfs.h" +#include "../../drivers/filesystems/btrfs/btrfsioctl.h" +#else +#include "../btrfs.h" +#include "../btrfsioctl.h" +#endif + +#ifndef __REACTOS__ +#define FSCTL_LOCK_VOLUME CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 6, METHOD_BUFFERED, FILE_ANY_ACCESS) +#define FSCTL_UNLOCK_VOLUME CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 7, METHOD_BUFFERED, FILE_ANY_ACCESS) +#define FSCTL_DISMOUNT_VOLUME CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 8, METHOD_BUFFERED, FILE_ANY_ACCESS) +#endif + +#ifndef __REACTOS__ +#ifdef __cplusplus +extern "C" { +#endif +NTSYSCALLAPI NTSTATUS NTAPI NtFsControlFile(HANDLE FileHandle, HANDLE Event, PIO_APC_ROUTINE ApcRoutine, PVOID ApcContext, PIO_STATUS_BLOCK IoStatusBlock, ULONG FsControlCode, PVOID InputBuffer, ULONG InputBufferLength, PVOID OutputBuffer, ULONG OutputBufferLength); + +NTSTATUS NTAPI NtWriteFile(HANDLE FileHandle, HANDLE Event, PIO_APC_ROUTINE ApcRoutine, PVOID ApcContext, PIO_STATUS_BLOCK IoStatusBlock, PVOID Buffer, + ULONG Length, PLARGE_INTEGER ByteOffset, PULONG Key); + +NTSTATUS NTAPI NtReadFile(HANDLE FileHandle, HANDLE Event, PIO_APC_ROUTINE ApcRoutine, PVOID ApcContext, PIO_STATUS_BLOCK IoStatusBlock, PVOID Buffer, + ULONG Length, PLARGE_INTEGER ByteOffset, PULONG Key); + +NTSYSAPI NTSTATUS NTAPI RtlUnicodeToUTF8N(PCHAR UTF8StringDestination, ULONG UTF8StringMaxByteCount, PULONG UTF8StringActualByteCount, + PCWCH UnicodeStringSource, ULONG UnicodeStringByteCount); +#ifdef __cplusplus +} +#endif + +FORCEINLINE VOID InitializeListHead(PLIST_ENTRY ListHead) { + ListHead->Flink = ListHead->Blink = ListHead; +} + +FORCEINLINE VOID InsertTailList(PLIST_ENTRY ListHead, PLIST_ENTRY Entry) { + PLIST_ENTRY Blink; + + Blink = ListHead->Blink; + Entry->Flink = ListHead; + Entry->Blink = Blink; + Blink->Flink = Entry; + ListHead->Blink = Entry; +} +#endif + +#if defined(__REACTOS__) && (NTDDI_VERSION < NTDDI_WIN7) +NTSTATUS WINAPI RtlUnicodeToUTF8N(CHAR *utf8_dest, ULONG utf8_bytes_max, + ULONG *utf8_bytes_written, + const WCHAR *uni_src, ULONG uni_bytes); +#endif /* defined(__REACTOS__) && (NTDDI_VERSION < NTDDI_WIN7) */ + +#ifdef __REACTOS__ +ULONG WINAPI NtGetTickCount(VOID); +#endif + +typedef struct { + KEY key; + UINT16 size; + void* data; + LIST_ENTRY list_entry; +} btrfs_item; + +typedef struct { + UINT64 offset; + CHUNK_ITEM* chunk_item; + UINT64 lastoff; + UINT64 used; + LIST_ENTRY list_entry; +} btrfs_chunk; + +typedef struct { + UINT64 id; + tree_header header; + btrfs_chunk* c; + LIST_ENTRY items; + LIST_ENTRY list_entry; +} btrfs_root; + +typedef struct { + DEV_ITEM dev_item; + UINT64 last_alloc; +} btrfs_dev; + +#define keycmp(key1, key2)\ + ((key1.obj_id < key2.obj_id) ? -1 :\ + ((key1.obj_id > key2.obj_id) ? 1 :\ + ((key1.obj_type < key2.obj_type) ? -1 :\ + ((key1.obj_type > key2.obj_type) ? 1 :\ + ((key1.offset < key2.offset) ? -1 :\ + ((key1.offset > key2.offset) ? 1 :\ + 0)))))) + +HMODULE module; + +// the following definitions come from fmifs.h in ReactOS + +typedef struct { + ULONG Lines; + PCHAR Output; +} TEXTOUTPUT, *PTEXTOUTPUT; + +typedef enum { + FMIFS_UNKNOWN0, + FMIFS_UNKNOWN1, + FMIFS_UNKNOWN2, + FMIFS_UNKNOWN3, + FMIFS_UNKNOWN4, + FMIFS_UNKNOWN5, + FMIFS_UNKNOWN6, + FMIFS_UNKNOWN7, + FMIFS_FLOPPY, + FMIFS_UNKNOWN9, + FMIFS_UNKNOWN10, + FMIFS_REMOVABLE, + FMIFS_HARDDISK, + FMIFS_UNKNOWN13, + FMIFS_UNKNOWN14, + FMIFS_UNKNOWN15, + FMIFS_UNKNOWN16, + FMIFS_UNKNOWN17, + FMIFS_UNKNOWN18, + FMIFS_UNKNOWN19, + FMIFS_UNKNOWN20, + FMIFS_UNKNOWN21, + FMIFS_UNKNOWN22, + FMIFS_UNKNOWN23, +} FMIFS_MEDIA_FLAG; + +typedef enum { + PROGRESS, + DONEWITHSTRUCTURE, + UNKNOWN2, + UNKNOWN3, + UNKNOWN4, + UNKNOWN5, + INSUFFICIENTRIGHTS, + FSNOTSUPPORTED, + VOLUMEINUSE, + UNKNOWN9, + UNKNOWNA, + DONE, + UNKNOWNC, + UNKNOWND, + OUTPUT, + STRUCTUREPROGRESS, + CLUSTERSIZETOOSMALL, +} CALLBACKCOMMAND; + +typedef BOOLEAN (NTAPI* PFMIFSCALLBACK)(CALLBACKCOMMAND Command, ULONG SubAction, PVOID ActionInfo); + +static const UINT32 crctable[] = { + 0x00000000, 0xf26b8303, 0xe13b70f7, 0x1350f3f4, 0xc79a971f, 0x35f1141c, 0x26a1e7e8, 0xd4ca64eb, + 0x8ad958cf, 0x78b2dbcc, 0x6be22838, 0x9989ab3b, 0x4d43cfd0, 0xbf284cd3, 0xac78bf27, 0x5e133c24, + 0x105ec76f, 0xe235446c, 0xf165b798, 0x030e349b, 0xd7c45070, 0x25afd373, 0x36ff2087, 0xc494a384, + 0x9a879fa0, 0x68ec1ca3, 0x7bbcef57, 0x89d76c54, 0x5d1d08bf, 0xaf768bbc, 0xbc267848, 0x4e4dfb4b, + 0x20bd8ede, 0xd2d60ddd, 0xc186fe29, 0x33ed7d2a, 0xe72719c1, 0x154c9ac2, 0x061c6936, 0xf477ea35, + 0xaa64d611, 0x580f5512, 0x4b5fa6e6, 0xb93425e5, 0x6dfe410e, 0x9f95c20d, 0x8cc531f9, 0x7eaeb2fa, + 0x30e349b1, 0xc288cab2, 0xd1d83946, 0x23b3ba45, 0xf779deae, 0x05125dad, 0x1642ae59, 0xe4292d5a, + 0xba3a117e, 0x4851927d, 0x5b016189, 0xa96ae28a, 0x7da08661, 0x8fcb0562, 0x9c9bf696, 0x6ef07595, + 0x417b1dbc, 0xb3109ebf, 0xa0406d4b, 0x522bee48, 0x86e18aa3, 0x748a09a0, 0x67dafa54, 0x95b17957, + 0xcba24573, 0x39c9c670, 0x2a993584, 0xd8f2b687, 0x0c38d26c, 0xfe53516f, 0xed03a29b, 0x1f682198, + 0x5125dad3, 0xa34e59d0, 0xb01eaa24, 0x42752927, 0x96bf4dcc, 0x64d4cecf, 0x77843d3b, 0x85efbe38, + 0xdbfc821c, 0x2997011f, 0x3ac7f2eb, 0xc8ac71e8, 0x1c661503, 0xee0d9600, 0xfd5d65f4, 0x0f36e6f7, + 0x61c69362, 0x93ad1061, 0x80fde395, 0x72966096, 0xa65c047d, 0x5437877e, 0x4767748a, 0xb50cf789, + 0xeb1fcbad, 0x197448ae, 0x0a24bb5a, 0xf84f3859, 0x2c855cb2, 0xdeeedfb1, 0xcdbe2c45, 0x3fd5af46, + 0x7198540d, 0x83f3d70e, 0x90a324fa, 0x62c8a7f9, 0xb602c312, 0x44694011, 0x5739b3e5, 0xa55230e6, + 0xfb410cc2, 0x092a8fc1, 0x1a7a7c35, 0xe811ff36, 0x3cdb9bdd, 0xceb018de, 0xdde0eb2a, 0x2f8b6829, + 0x82f63b78, 0x709db87b, 0x63cd4b8f, 0x91a6c88c, 0x456cac67, 0xb7072f64, 0xa457dc90, 0x563c5f93, + 0x082f63b7, 0xfa44e0b4, 0xe9141340, 0x1b7f9043, 0xcfb5f4a8, 0x3dde77ab, 0x2e8e845f, 0xdce5075c, + 0x92a8fc17, 0x60c37f14, 0x73938ce0, 0x81f80fe3, 0x55326b08, 0xa759e80b, 0xb4091bff, 0x466298fc, + 0x1871a4d8, 0xea1a27db, 0xf94ad42f, 0x0b21572c, 0xdfeb33c7, 0x2d80b0c4, 0x3ed04330, 0xccbbc033, + 0xa24bb5a6, 0x502036a5, 0x4370c551, 0xb11b4652, 0x65d122b9, 0x97baa1ba, 0x84ea524e, 0x7681d14d, + 0x2892ed69, 0xdaf96e6a, 0xc9a99d9e, 0x3bc21e9d, 0xef087a76, 0x1d63f975, 0x0e330a81, 0xfc588982, + 0xb21572c9, 0x407ef1ca, 0x532e023e, 0xa145813d, 0x758fe5d6, 0x87e466d5, 0x94b49521, 0x66df1622, + 0x38cc2a06, 0xcaa7a905, 0xd9f75af1, 0x2b9cd9f2, 0xff56bd19, 0x0d3d3e1a, 0x1e6dcdee, 0xec064eed, + 0xc38d26c4, 0x31e6a5c7, 0x22b65633, 0xd0ddd530, 0x0417b1db, 0xf67c32d8, 0xe52cc12c, 0x1747422f, + 0x49547e0b, 0xbb3ffd08, 0xa86f0efc, 0x5a048dff, 0x8ecee914, 0x7ca56a17, 0x6ff599e3, 0x9d9e1ae0, + 0xd3d3e1ab, 0x21b862a8, 0x32e8915c, 0xc083125f, 0x144976b4, 0xe622f5b7, 0xf5720643, 0x07198540, + 0x590ab964, 0xab613a67, 0xb831c993, 0x4a5a4a90, 0x9e902e7b, 0x6cfbad78, 0x7fab5e8c, 0x8dc0dd8f, + 0xe330a81a, 0x115b2b19, 0x020bd8ed, 0xf0605bee, 0x24aa3f05, 0xd6c1bc06, 0xc5914ff2, 0x37faccf1, + 0x69e9f0d5, 0x9b8273d6, 0x88d28022, 0x7ab90321, 0xae7367ca, 0x5c18e4c9, 0x4f48173d, 0xbd23943e, + 0xf36e6f75, 0x0105ec76, 0x12551f82, 0xe03e9c81, 0x34f4f86a, 0xc69f7b69, 0xd5cf889d, 0x27a40b9e, + 0x79b737ba, 0x8bdcb4b9, 0x988c474d, 0x6ae7c44e, 0xbe2da0a5, 0x4c4623a6, 0x5f16d052, 0xad7d5351, +}; + +static UINT32 calc_crc32c(UINT32 seed, UINT8* msg, ULONG msglen) { + UINT32 rem; + ULONG i; + + rem = seed; + + for (i = 0; i < msglen; i++) { + rem = crctable[(rem ^ msg[i]) & 0xff] ^ (rem >> 8); + } + + return rem; +} + +#ifndef __REACTOS__ +NTSTATUS WINAPI ChkdskEx(PUNICODE_STRING DriveRoot, BOOLEAN FixErrors, BOOLEAN Verbose, BOOLEAN CheckOnlyIfDirty, +#else +NTSTATUS WINAPI BtrfsChkdskEx(PUNICODE_STRING DriveRoot, BOOLEAN FixErrors, BOOLEAN Verbose, BOOLEAN CheckOnlyIfDirty, +#endif + BOOLEAN ScanDrive, PFMIFSCALLBACK Callback) { + // STUB + + if (Callback) { + TEXTOUTPUT TextOut; + + TextOut.Lines = 1; + TextOut.Output = "stub, not implemented"; + + Callback(OUTPUT, 0, &TextOut); + } + + return STATUS_SUCCESS; +} + +static btrfs_root* add_root(LIST_ENTRY* roots, UINT64 id) { + btrfs_root* root; + +#ifdef __REACTOS__ + root = RtlAllocateHeap(RtlGetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(btrfs_root)); +#else + root = malloc(sizeof(btrfs_root)); +#endif + + root->id = id; +#ifndef __REACTOS__ + RtlZeroMemory(&root->header, sizeof(tree_header)); +#endif + InitializeListHead(&root->items); + InsertTailList(roots, &root->list_entry); + + return root; +} + +static void free_roots(LIST_ENTRY* roots) { + LIST_ENTRY* le; + + le = roots->Flink; + while (le != roots) { + LIST_ENTRY *le2 = le->Flink, *le3; + btrfs_root* r = CONTAINING_RECORD(le, btrfs_root, list_entry); + + le3 = r->items.Flink; + while (le3 != &r->items) { + LIST_ENTRY* le4 = le3->Flink; + btrfs_item* item = CONTAINING_RECORD(le3, btrfs_item, list_entry); + + if (item->data) +#ifdef __REACTOS__ + RtlFreeHeap(RtlGetProcessHeap(), 0, item->data); + + RtlFreeHeap(RtlGetProcessHeap(), 0, item); +#else + free(item->data); + + free(item); +#endif + + le3 = le4; + } + +#ifdef __REACTOS__ + RtlFreeHeap(RtlGetProcessHeap(), 0, r); +#else + free(r); +#endif + + le = le2; + } +} + +static void free_chunks(LIST_ENTRY* chunks) { + LIST_ENTRY* le; + + le = chunks->Flink; + while (le != chunks) { + LIST_ENTRY *le2 = le->Flink; + btrfs_chunk* c = CONTAINING_RECORD(le, btrfs_chunk, list_entry); + +#ifndef __REACTOS__ + free(c->chunk_item); + free(c); +#else + RtlFreeHeap(RtlGetProcessHeap(), 0, c->chunk_item); + RtlFreeHeap(RtlGetProcessHeap(), 0, c); +#endif + + le = le2; + } +} + +static void add_item(btrfs_root* r, UINT64 obj_id, UINT8 obj_type, UINT64 offset, void* data, UINT16 size) { + LIST_ENTRY* le; + btrfs_item* item; + +#ifndef __REACTOS__ + item = malloc(sizeof(btrfs_item)); +#else + item = RtlAllocateHeap(RtlGetProcessHeap(), 0, sizeof(btrfs_item)); +#endif + + item->key.obj_id = obj_id; + item->key.obj_type = obj_type; + item->key.offset = offset; + item->size = size; + + if (size == 0) + item->data = NULL; + else { +#ifndef __REACTOS__ + item->data = malloc(size); +#else + item->data = RtlAllocateHeap(RtlGetProcessHeap(), 0, size); +#endif + memcpy(item->data, data, size); + } + + le = r->items.Flink; + while (le != &r->items) { + btrfs_item* i2 = CONTAINING_RECORD(le, btrfs_item, list_entry); + + if (keycmp(item->key, i2->key) != 1) { + InsertTailList(le, &item->list_entry); + return; + } + + le = le->Flink; + } + + InsertTailList(&r->items, &item->list_entry); +} + +static UINT64 find_chunk_offset(UINT64 size, UINT64 offset, btrfs_dev* dev, btrfs_root* dev_root, BTRFS_UUID* chunkuuid) { + UINT64 off; + DEV_EXTENT de; + + off = dev->last_alloc; + dev->last_alloc += size; + + dev->dev_item.bytes_used += size; + + de.chunktree = BTRFS_ROOT_CHUNK; + de.objid = 0x100; + de.address = offset; + de.length = size; + de.chunktree_uuid = *chunkuuid; + + add_item(dev_root, dev->dev_item.dev_id, TYPE_DEV_EXTENT, off, &de, sizeof(DEV_EXTENT)); + + return off; +} + +static btrfs_chunk* add_chunk(LIST_ENTRY* chunks, UINT64 flags, btrfs_root* chunk_root, btrfs_dev* dev, btrfs_root* dev_root, BTRFS_UUID* chunkuuid, UINT32 sector_size) { + UINT64 off, size; + UINT16 stripes, i; + btrfs_chunk* c; + LIST_ENTRY* le; + CHUNK_ITEM_STRIPE* cis; + + off = 0xc00000; + le = chunks->Flink; + while (le != chunks) { + c = CONTAINING_RECORD(le, btrfs_chunk, list_entry); + + if (c->offset + c->chunk_item->size > off) + off = c->offset + c->chunk_item->size; + + le = le->Flink; + } + + if (flags & BLOCK_FLAG_METADATA) { + if (dev->dev_item.num_bytes > 0xC80000000) // 50 GB + size = 0x40000000; // 1 GB + else + size = 0x10000000; // 256 MB + } else if (flags & BLOCK_FLAG_SYSTEM) + size = 0x800000; + + size = min(size, dev->dev_item.num_bytes / 10); // cap at 10% + size &= ~(sector_size - 1); + + stripes = flags & BLOCK_FLAG_DUPLICATE ? 2 : 1; + + if (dev->dev_item.num_bytes - dev->dev_item.bytes_used < stripes * size) // not enough space + return NULL; + +#ifndef __REACTOS__ + c = malloc(sizeof(btrfs_chunk)); +#else + c = RtlAllocateHeap(RtlGetProcessHeap(), 0, sizeof(btrfs_chunk)); +#endif + c->offset = off; + c->lastoff = off; + c->used = 0; + +#ifndef __REACTOS__ + c->chunk_item = malloc(sizeof(CHUNK_ITEM) + (stripes * sizeof(CHUNK_ITEM_STRIPE))); +#else + c->chunk_item = RtlAllocateHeap(RtlGetProcessHeap(), 0, sizeof(CHUNK_ITEM) + (stripes * sizeof(CHUNK_ITEM_STRIPE))); +#endif + + c->chunk_item->size = size; + c->chunk_item->root_id = BTRFS_ROOT_EXTENT; + c->chunk_item->stripe_length = 0x10000; + c->chunk_item->type = flags; + c->chunk_item->opt_io_alignment = 0x10000; + c->chunk_item->opt_io_width = 0x10000; + c->chunk_item->sector_size = sector_size; + c->chunk_item->num_stripes = stripes; + c->chunk_item->sub_stripes = 0; + + cis = (CHUNK_ITEM_STRIPE*)&c->chunk_item[1]; + + for (i = 0; i < stripes; i++) { + cis[i].dev_id = dev->dev_item.dev_id; + cis[i].offset = find_chunk_offset(size, c->offset, dev, dev_root, chunkuuid); + cis[i].dev_uuid = dev->dev_item.device_uuid; + } + + add_item(chunk_root, 0x100, TYPE_CHUNK_ITEM, c->offset, c->chunk_item, sizeof(CHUNK_ITEM) + (stripes * sizeof(CHUNK_ITEM_STRIPE))); + + InsertTailList(chunks, &c->list_entry); + + return c; +} + +static BOOL superblock_collision(btrfs_chunk* c, UINT64 address) { + CHUNK_ITEM_STRIPE* cis = (CHUNK_ITEM_STRIPE*)&c->chunk_item[1]; + UINT64 stripe = (address - c->offset) / c->chunk_item->stripe_length; + UINT16 i, j; + + for (i = 0; i < c->chunk_item->num_stripes; i++) { + j = 0; + while (superblock_addrs[j] != 0) { + if (superblock_addrs[j] >= cis[i].offset) { + UINT64 stripe2 = (superblock_addrs[j] - cis[i].offset) / c->chunk_item->stripe_length; + + if (stripe2 == stripe) + return TRUE; + } + j++; + } + } + + return FALSE; +} + +static UINT64 get_next_address(btrfs_chunk* c) { + UINT64 addr; + + addr = c->lastoff; + + while (superblock_collision(c, addr)) { + addr = addr - ((addr - c->offset) % c->chunk_item->stripe_length) + c->chunk_item->stripe_length; + + if (addr >= c->offset + c->chunk_item->size) // chunk has been exhausted + return 0; + } + + return addr; +} + +typedef struct { + EXTENT_ITEM ei; + UINT8 type; + TREE_BLOCK_REF tbr; +} EXTENT_ITEM_METADATA; + +static void assign_addresses(LIST_ENTRY* roots, btrfs_chunk* sys_chunk, btrfs_chunk* metadata_chunk, UINT32 node_size, + btrfs_root* root_root, btrfs_root* extent_root) { + LIST_ENTRY* le; + + le = roots->Flink; + while (le != roots) { + btrfs_root* r = CONTAINING_RECORD(le, btrfs_root, list_entry); + btrfs_chunk* c = r->id == BTRFS_ROOT_CHUNK ? sys_chunk : metadata_chunk; + EXTENT_ITEM_METADATA eim; + + r->header.address = get_next_address(c); + r->c = c; + c->lastoff = r->header.address + node_size; + c->used += node_size; + + eim.ei.refcount = 1; + eim.ei.generation = 1; + eim.ei.flags = EXTENT_ITEM_TREE_BLOCK; + eim.type = TYPE_TREE_BLOCK_REF; + eim.tbr.offset = r->id; + + // FIXME - support non-skinny EXTENT_ITEM + add_item(extent_root, r->header.address, TYPE_METADATA_ITEM, 0, &eim, sizeof(EXTENT_ITEM_METADATA)); + + if (r->id != BTRFS_ROOT_ROOT && r->id != BTRFS_ROOT_CHUNK) { + ROOT_ITEM ri; + + memset(&ri, 0, sizeof(ROOT_ITEM)); + + ri.inode.generation = 1; + ri.inode.st_size = 3; + ri.inode.st_blocks = node_size; + ri.inode.st_nlink = 1; + ri.inode.st_mode = 040755; + ri.generation = 1; + ri.objid = r->id == 5 || r->id >= 0x100 ? SUBVOL_ROOT_INODE : 0; + ri.block_number = r->header.address; + ri.bytes_used = node_size; + ri.num_references = 1; + ri.generation2 = ri.generation; + + add_item(root_root, r->id, TYPE_ROOT_ITEM, 0, &ri, sizeof(ROOT_ITEM)); + } + + le = le->Flink; + } +} + +static NTSTATUS write_data(HANDLE h, UINT64 address, btrfs_chunk* c, void* data, ULONG size) { + NTSTATUS Status; + UINT16 i; + IO_STATUS_BLOCK iosb; + LARGE_INTEGER off; + CHUNK_ITEM_STRIPE* cis; + + cis = (CHUNK_ITEM_STRIPE*)&c->chunk_item[1]; + + for (i = 0; i < c->chunk_item->num_stripes; i++) { + off.QuadPart = cis[i].offset + address - c->offset; + + Status = NtWriteFile(h, NULL, NULL, NULL, &iosb, data, size, &off, NULL); + if (!NT_SUCCESS(Status)) + return Status; + } + + return STATUS_SUCCESS; +} + +static NTSTATUS write_roots(HANDLE h, LIST_ENTRY* roots, UINT32 node_size, BTRFS_UUID* fsuuid, BTRFS_UUID* chunkuuid) { + LIST_ENTRY *le, *le2; + NTSTATUS Status; + UINT8* tree; + +#ifndef __REACTOS__ + tree = malloc(node_size); +#else + tree = RtlAllocateHeap(RtlGetProcessHeap(), 0, node_size); +#endif + + le = roots->Flink; + while (le != roots) { + btrfs_root* r = CONTAINING_RECORD(le, btrfs_root, list_entry); + UINT8* dp; + leaf_node* ln; + UINT32 crc32; + + memset(tree, 0, node_size); + + r->header.num_items = 0; + r->header.fs_uuid = *fsuuid; + r->header.flags = HEADER_FLAG_MIXED_BACKREF | HEADER_FLAG_WRITTEN; + r->header.chunk_tree_uuid = *chunkuuid; + r->header.generation = 1; + r->header.tree_id = r->id; + + ln = (leaf_node*)(tree + sizeof(tree_header)); + + dp = tree + node_size; + + le2 = r->items.Flink; + while (le2 != &r->items) { + btrfs_item* item = CONTAINING_RECORD(le2, btrfs_item, list_entry); + + ln->key = item->key; + ln->size = item->size; + + if (item->size > 0) { + dp -= item->size; + memcpy(dp, item->data, item->size); + + ln->offset = dp - tree - sizeof(tree_header); + } else + ln->offset = 0; + + ln = &ln[1]; + + r->header.num_items++; + + le2 = le2->Flink; + } + + memcpy(tree, &r->header, sizeof(tree_header)); + + crc32 = ~calc_crc32c(0xffffffff, (UINT8*)&((tree_header*)tree)->fs_uuid, node_size - sizeof(((tree_header*)tree)->csum)); + memcpy(tree, &crc32, sizeof(UINT32)); + + Status = write_data(h, r->header.address, r->c, tree, node_size); + if (!NT_SUCCESS(Status)) { +#ifndef __REACTOS__ + free(tree); +#else + RtlFreeHeap(RtlGetProcessHeap(), 0, tree); +#endif + return Status; + } + + le = le->Flink; + } + +#ifndef __REACTOS__ + free(tree); +#else + RtlFreeHeap(RtlGetProcessHeap(), 0, tree); +#endif + + return STATUS_SUCCESS; +} + +#ifndef __REACTOS__ +static void get_uuid(BTRFS_UUID* uuid) { +#else +static void get_uuid(BTRFS_UUID* uuid, ULONG* seed) { +#endif + UINT8 i; + + for (i = 0; i < 16; i+=2) { +#ifndef __REACTOS__ + ULONG r = rand(); +#else + ULONG r = RtlRandom(seed); +#endif + + uuid->uuid[i] = (r & 0xff00) >> 8; + uuid->uuid[i+1] = r & 0xff; + } +} + +#ifndef __REACTOS__ +static void init_device(btrfs_dev* dev, UINT64 id, UINT64 size, BTRFS_UUID* fsuuid, UINT32 sector_size) { +#else +static void init_device(btrfs_dev* dev, UINT64 id, UINT64 size, BTRFS_UUID* fsuuid, UINT32 sector_size, ULONG* seed) { +#endif + dev->dev_item.dev_id = id; + dev->dev_item.num_bytes = size; + dev->dev_item.bytes_used = 0; + dev->dev_item.optimal_io_align = sector_size; + dev->dev_item.optimal_io_width = sector_size; + dev->dev_item.minimal_io_size = sector_size; + dev->dev_item.type = 0; + dev->dev_item.generation = 0; + dev->dev_item.start_offset = 0; + dev->dev_item.dev_group = 0; + dev->dev_item.seek_speed = 0; + dev->dev_item.bandwidth = 0; +#ifndef __REACTOS__ + get_uuid(&dev->dev_item.device_uuid); +#else + get_uuid(&dev->dev_item.device_uuid, seed); +#endif + dev->dev_item.fs_uuid = *fsuuid; + + dev->last_alloc = 0x100000; // skip first megabyte +} + +#ifdef __REACTOS__ +NTSTATUS NTAPI RtlUnicodeToUTF8N(CHAR *utf8_dest, ULONG utf8_bytes_max, + ULONG *utf8_bytes_written, + const WCHAR *uni_src, ULONG uni_bytes) +{ + NTSTATUS status; + ULONG i; + ULONG written; + ULONG ch; + BYTE utf8_ch[4]; + ULONG utf8_ch_len; + + if (!uni_src) + return STATUS_INVALID_PARAMETER_4; + if (!utf8_bytes_written) + return STATUS_INVALID_PARAMETER; + if (utf8_dest && uni_bytes % sizeof(WCHAR)) + return STATUS_INVALID_PARAMETER_5; + + written = 0; + status = STATUS_SUCCESS; + + for (i = 0; i < uni_bytes / sizeof(WCHAR); i++) + { + /* decode UTF-16 into ch */ + ch = uni_src[i]; + if (ch >= 0xdc00 && ch <= 0xdfff) + { + ch = 0xfffd; + status = STATUS_SOME_NOT_MAPPED; + } + else if (ch >= 0xd800 && ch <= 0xdbff) + { + if (i + 1 < uni_bytes / sizeof(WCHAR)) + { + ch -= 0xd800; + ch <<= 10; + if (uni_src[i + 1] >= 0xdc00 && uni_src[i + 1] <= 0xdfff) + { + ch |= uni_src[i + 1] - 0xdc00; + ch += 0x010000; + i++; + } + else + { + ch = 0xfffd; + status = STATUS_SOME_NOT_MAPPED; + } + } + else + { + ch = 0xfffd; + status = STATUS_SOME_NOT_MAPPED; + } + } + + /* encode ch as UTF-8 */ + ASSERT(ch <= 0x10ffff); + if (ch < 0x80) + { + utf8_ch[0] = ch & 0x7f; + utf8_ch_len = 1; + } + else if (ch < 0x800) + { + utf8_ch[0] = 0xc0 | (ch >> 6 & 0x1f); + utf8_ch[1] = 0x80 | (ch >> 0 & 0x3f); + utf8_ch_len = 2; + } + else if (ch < 0x10000) + { + utf8_ch[0] = 0xe0 | (ch >> 12 & 0x0f); + utf8_ch[1] = 0x80 | (ch >> 6 & 0x3f); + utf8_ch[2] = 0x80 | (ch >> 0 & 0x3f); + utf8_ch_len = 3; + } + else if (ch < 0x200000) + { + utf8_ch[0] = 0xf0 | (ch >> 18 & 0x07); + utf8_ch[1] = 0x80 | (ch >> 12 & 0x3f); + utf8_ch[2] = 0x80 | (ch >> 6 & 0x3f); + utf8_ch[3] = 0x80 | (ch >> 0 & 0x3f); + utf8_ch_len = 4; + } + + if (!utf8_dest) + { + written += utf8_ch_len; + continue; + } + + if (utf8_bytes_max >= utf8_ch_len) + { + memcpy(utf8_dest, utf8_ch, utf8_ch_len); + utf8_dest += utf8_ch_len; + utf8_bytes_max -= utf8_ch_len; + written += utf8_ch_len; + } + else + { + utf8_bytes_max = 0; + status = STATUS_BUFFER_TOO_SMALL; + } + } + + *utf8_bytes_written = written; + return status; +} +#endif + +static NTSTATUS write_superblocks(HANDLE h, btrfs_dev* dev, btrfs_root* chunk_root, btrfs_root* root_root, btrfs_root* extent_root, + btrfs_chunk* sys_chunk, UINT32 node_size, BTRFS_UUID* fsuuid, UINT32 sector_size, PUNICODE_STRING label) { + NTSTATUS Status; + IO_STATUS_BLOCK iosb; + ULONG sblen; + int i; + UINT32 crc32; + superblock* sb; + KEY* key; + UINT64 bytes_used; + LIST_ENTRY* le; + + sblen = sizeof(sb); + if (sblen & (sector_size - 1)) + sblen = (sblen & sector_size) + sector_size; + + bytes_used = 0; + + le = extent_root->items.Flink; + while (le != &extent_root->items) { + btrfs_item* item = CONTAINING_RECORD(le, btrfs_item, list_entry); + + if (item->key.obj_type == TYPE_EXTENT_ITEM) + bytes_used += item->key.offset; + else if (item->key.obj_type == TYPE_METADATA_ITEM) + bytes_used += node_size; + + le = le->Flink; + } + +#ifndef __REACTOS__ + sb = malloc(sblen); + memset(sb, 0, sblen); +#else + sb = RtlAllocateHeap(RtlGetProcessHeap(), HEAP_ZERO_MEMORY, sblen); +#endif + + sb->uuid = *fsuuid; + sb->flags = 1; + sb->magic = BTRFS_MAGIC; + sb->generation = 1; + sb->root_tree_addr = root_root->header.address; + sb->chunk_tree_addr = chunk_root->header.address; + sb->total_bytes = dev->dev_item.num_bytes; + sb->bytes_used = bytes_used; + sb->root_dir_objectid = 6; + sb->num_devices = 1; + sb->sector_size = sector_size; + sb->node_size = node_size; + sb->leaf_size = node_size; + sb->stripe_size = sector_size; + sb->n = sizeof(KEY) + sizeof(CHUNK_ITEM) + (sys_chunk->chunk_item->num_stripes * sizeof(CHUNK_ITEM_STRIPE)); + sb->chunk_root_generation = 1; + sb->incompat_flags = BTRFS_INCOMPAT_FLAGS_MIXED_BACKREF | BTRFS_INCOMPAT_FLAGS_EXTENDED_IREF | BTRFS_INCOMPAT_FLAGS_SKINNY_METADATA; + memcpy(&sb->dev_item, &dev->dev_item, sizeof(DEV_ITEM)); + + if (label->Length > 0) { + int i; + ULONG utf8len; + + for (i = 0; i < label->Length / sizeof(WCHAR); i++) { + if (label->Buffer[i] == '/' || label->Buffer[i] == '\') { +#ifndef __REACTOS__ + free(sb); +#else + RtlFreeHeap(RtlGetProcessHeap(), 0, sb); +#endif + return STATUS_INVALID_VOLUME_LABEL; + } + } + + Status = RtlUnicodeToUTF8N(NULL, 0, &utf8len, label->Buffer, label->Length); + if (!NT_SUCCESS(Status)) { +#ifndef __REACTOS__ + free(sb); +#else + RtlFreeHeap(RtlGetProcessHeap(), 0, sb); +#endif + return Status; + } + + if (utf8len > MAX_LABEL_SIZE) { +#ifndef __REACTOS__ + free(sb); +#else + RtlFreeHeap(RtlGetProcessHeap(), 0, sb); +#endif + return STATUS_INVALID_VOLUME_LABEL; + } + + Status = RtlUnicodeToUTF8N((PCHAR)&sb->label, MAX_LABEL_SIZE, &utf8len, label->Buffer, label->Length); + if (!NT_SUCCESS(Status)) { +#ifndef __REACTOS__ + free(sb); +#else + RtlFreeHeap(RtlGetProcessHeap(), 0, sb); +#endif + return Status; + } + } + sb->cache_generation = 0xffffffffffffffff; + + key = (KEY*)sb->sys_chunk_array; + key->obj_id = 0x100; + key->obj_type = TYPE_CHUNK_ITEM; + key->offset = sys_chunk->offset; + memcpy(&key[1], sys_chunk->chunk_item, sizeof(CHUNK_ITEM) + (sys_chunk->chunk_item->num_stripes * sizeof(CHUNK_ITEM_STRIPE))); + + i = 0; + while (superblock_addrs[i] != 0) { + LARGE_INTEGER off; + + if (superblock_addrs[i] > dev->dev_item.num_bytes) + break; + + sb->sb_phys_addr = superblock_addrs[i]; + + crc32 = ~calc_crc32c(0xffffffff, (UINT8*)&sb->uuid, (ULONG)sizeof(superblock) - sizeof(sb->checksum)); + memcpy(&sb->checksum, &crc32, sizeof(UINT32)); + + off.QuadPart = superblock_addrs[i]; + + Status = NtWriteFile(h, NULL, NULL, NULL, &iosb, sb, sblen, &off, NULL); + if (!NT_SUCCESS(Status)) { +#ifndef __REACTOS__ + free(sb); +#else + RtlFreeHeap(RtlGetProcessHeap(), 0, sb); +#endif + return Status; + } + + i++; + } + +#ifndef __REACTOS__ + free(sb); +#else + RtlFreeHeap(RtlGetProcessHeap(), 0, sb); +#endif + + return STATUS_SUCCESS; +} + +static __inline void win_time_to_unix(LARGE_INTEGER t, BTRFS_TIME* out) { + ULONGLONG l = t.QuadPart - 116444736000000000; + + out->seconds = l / 10000000; + out->nanoseconds = (l % 10000000) * 100; +} + +#ifdef __REACTOS__ +VOID +WINAPI +GetSystemTimeAsFileTime(OUT PFILETIME lpFileTime) +{ + LARGE_INTEGER SystemTime; + + do + { + SystemTime.HighPart = SharedUserData->SystemTime.High1Time; + SystemTime.LowPart = SharedUserData->SystemTime.LowPart; + } + while (SystemTime.HighPart != SharedUserData->SystemTime.High2Time); + + lpFileTime->dwLowDateTime = SystemTime.LowPart; + lpFileTime->dwHighDateTime = SystemTime.HighPart; +} +#endif + +static void init_fs_tree(btrfs_root* r, UINT32 node_size) { + INODE_ITEM ii; + INODE_REF* ir; +#ifndef __REACTOS__ + SYSTEMTIME systime; +#endif + FILETIME filetime; + LARGE_INTEGER time; + + memset(&ii, 0, sizeof(INODE_ITEM)); + + ii.generation = 1; + ii.st_blocks = node_size; + ii.st_nlink = 1; + ii.st_mode = 040755; + +#ifndef __REACTOS__ + GetSystemTime(&systime); + SystemTimeToFileTime(&systime, &filetime); +#else + GetSystemTimeAsFileTime(&filetime); +#endif + time.LowPart = filetime.dwLowDateTime; + time.HighPart = filetime.dwHighDateTime; + + win_time_to_unix(time, &ii.st_atime); + ii.st_ctime = ii.st_mtime = ii.st_atime; + + add_item(r, SUBVOL_ROOT_INODE, TYPE_INODE_ITEM, 0, &ii, sizeof(INODE_ITEM)); + +#ifndef __REACTOS__ + ir = malloc(sizeof(INODE_REF) - 1 + 2); +#else + ir = RtlAllocateHeap(RtlGetProcessHeap(), 0, sizeof(INODE_REF) - 1 + 2); +#endif + + ir->index = 0; + ir->n = 2; + ir->name[0] = '.'; + ir->name[1] = '.'; + + add_item(r, SUBVOL_ROOT_INODE, TYPE_INODE_REF, SUBVOL_ROOT_INODE, ir, sizeof(INODE_REF) - 1 + ir->n); + +#ifndef __REACTOS__ + free(ir); +#else + RtlFreeHeap(RtlGetProcessHeap(), 0, ir); +#endif +} + +static void add_block_group_items(LIST_ENTRY* chunks, btrfs_root* extent_root) { + LIST_ENTRY* le; + + le = chunks->Flink; + while (le != chunks) { + btrfs_chunk* c = CONTAINING_RECORD(le, btrfs_chunk, list_entry); + BLOCK_GROUP_ITEM bgi; + + bgi.used = c->used; + bgi.chunk_tree = 0x100; + bgi.flags = c->chunk_item->type; + add_item(extent_root, c->offset, TYPE_BLOCK_GROUP_ITEM, c->chunk_item->size, &bgi, sizeof(BLOCK_GROUP_ITEM)); + + le = le->Flink; + } +} + +static NTSTATUS clear_first_megabyte(HANDLE h) { + NTSTATUS Status; + IO_STATUS_BLOCK iosb; + LARGE_INTEGER zero; + UINT8* mb; + +#ifndef __REACTOS__ + mb = malloc(0x100000); +#else + mb = RtlAllocateHeap(RtlGetProcessHeap(), 0, 0x100000); +#endif + memset(mb, 0, 0x100000); + + zero.QuadPart = 0; + + Status = NtWriteFile(h, NULL, NULL, NULL, &iosb, mb, 0x100000, &zero, NULL); + +#ifndef __REACTOS__ + free(mb); +#else + RtlFreeHeap(RtlGetProcessHeap(), 0, mb); +#endif + + return Status; +} + +static BOOL is_ssd(HANDLE h) { + ULONG aptelen; + ATA_PASS_THROUGH_EX* apte; + IO_STATUS_BLOCK iosb; + NTSTATUS Status; + IDENTIFY_DEVICE_DATA* idd; + + aptelen = sizeof(ATA_PASS_THROUGH_EX) + 512; +#ifndef __REACTOS__ + apte = malloc(aptelen); + + RtlZeroMemory(apte, aptelen); +#else + apte = RtlAllocateHeap(RtlGetProcessHeap(), HEAP_ZERO_MEMORY, aptelen); +#endif + + apte->Length = sizeof(ATA_PASS_THROUGH_EX); + apte->AtaFlags = ATA_FLAGS_DATA_IN; + apte->DataTransferLength = aptelen - sizeof(ATA_PASS_THROUGH_EX); + apte->TimeOutValue = 3; + apte->DataBufferOffset = apte->Length; + apte->CurrentTaskFile[6] = IDE_COMMAND_IDENTIFY; + + Status = NtDeviceIoControlFile(h, NULL, NULL, NULL, &iosb, IOCTL_ATA_PASS_THROUGH, apte, aptelen, apte, aptelen); + + if (NT_SUCCESS(Status)) { + idd = (IDENTIFY_DEVICE_DATA*)((UINT8*)apte + sizeof(ATA_PASS_THROUGH_EX)); + + if (idd->NominalMediaRotationRate == 1) + return TRUE; + } + + return FALSE; +} + +static NTSTATUS write_btrfs(HANDLE h, UINT64 size, PUNICODE_STRING label, UINT32 sector_size) { + NTSTATUS Status; + UINT32 node_size; + LIST_ENTRY roots, chunks; + btrfs_root *root_root, *chunk_root, *extent_root, *dev_root, *fs_root, *reloc_root; + btrfs_chunk *sys_chunk, *metadata_chunk; + btrfs_dev dev; + BTRFS_UUID fsuuid, chunkuuid; + BOOL ssd; +#ifdef __REACTOS__ + ULONG seed; +#endif + +#ifndef __REACTOS__ + srand(time(0)); + get_uuid(&fsuuid); + get_uuid(&chunkuuid); +#else + seed = NtGetTickCount(); + get_uuid(&fsuuid, &seed); + get_uuid(&chunkuuid, &seed); +#endif + + InitializeListHead(&roots); + InitializeListHead(&chunks); + + root_root = add_root(&roots, BTRFS_ROOT_ROOT); + chunk_root = add_root(&roots, BTRFS_ROOT_CHUNK); + extent_root = add_root(&roots, BTRFS_ROOT_EXTENT); + dev_root = add_root(&roots, BTRFS_ROOT_DEVTREE); + add_root(&roots, BTRFS_ROOT_CHECKSUM); + fs_root = add_root(&roots, BTRFS_ROOT_FSTREE); + reloc_root = add_root(&roots, BTRFS_ROOT_DATA_RELOC); + +#ifndef __REACTOS__ + init_device(&dev, 1, size, &fsuuid, sector_size); +#else + init_device(&dev, 1, size, &fsuuid, sector_size, &seed); +#endif + + ssd = is_ssd(h); + + sys_chunk = add_chunk(&chunks, BLOCK_FLAG_SYSTEM | (ssd ? 0 : BLOCK_FLAG_DUPLICATE), chunk_root, &dev, dev_root, &chunkuuid, sector_size); + if (!sys_chunk) + return STATUS_INTERNAL_ERROR; + + metadata_chunk = add_chunk(&chunks, BLOCK_FLAG_METADATA | (ssd ? 0 : BLOCK_FLAG_DUPLICATE), chunk_root, &dev, dev_root, &chunkuuid, sector_size); + if (!metadata_chunk) + return STATUS_INTERNAL_ERROR; + + node_size = 0x4000; + assign_addresses(&roots, sys_chunk, metadata_chunk, node_size, root_root, extent_root); + + add_item(chunk_root, 1, TYPE_DEV_ITEM, dev.dev_item.dev_id, &dev.dev_item, sizeof(DEV_ITEM)); + + init_fs_tree(fs_root, node_size); + init_fs_tree(reloc_root, node_size); + + add_block_group_items(&chunks, extent_root); + + Status = write_roots(h, &roots, node_size, &fsuuid, &chunkuuid); + if (!NT_SUCCESS(Status)) + return Status; + + Status = clear_first_megabyte(h); + if (!NT_SUCCESS(Status)) + return Status; + + Status = write_superblocks(h, &dev, chunk_root, root_root, extent_root, sys_chunk, node_size, &fsuuid, sector_size, label); + if (!NT_SUCCESS(Status)) + return Status; + + free_roots(&roots); + free_chunks(&chunks); + + return STATUS_SUCCESS; +} + +static BOOL look_for_device(btrfs_filesystem* bfs, BTRFS_UUID* devuuid) { + UINT32 i; + btrfs_filesystem_device* dev; + + for (i = 0; i < bfs->num_devices; i++) { + if (i == 0) + dev = &bfs->device; + else + dev = (btrfs_filesystem_device*)((UINT8*)dev + offsetof(btrfs_filesystem_device, name[0]) + dev->name_length); + + if (RtlCompareMemory(&dev->uuid, devuuid, sizeof(BTRFS_UUID)) == sizeof(BTRFS_UUID)) + return TRUE; + } + + return FALSE; +} + +static BOOL is_mounted_multi_device(HANDLE h, UINT32 sector_size) { + NTSTATUS Status; + superblock* sb; + ULONG sblen; + IO_STATUS_BLOCK iosb; + LARGE_INTEGER off; + BTRFS_UUID fsuuid, devuuid; + UINT32 crc32; + UNICODE_STRING us; + OBJECT_ATTRIBUTES atts; + HANDLE h2; + btrfs_filesystem *bfs = NULL, *bfs2; + ULONG bfssize; + BOOL ret = FALSE; + + static WCHAR btrfs[] = L"\Btrfs"; + + sblen = sizeof(sb); + if (sblen & (sector_size - 1)) + sblen = (sblen & sector_size) + sector_size; + +#ifndef __REACTOS__ + sb = malloc(sblen); +#else + sb = RtlAllocateHeap(RtlGetProcessHeap(), 0, sblen); +#endif + + off.QuadPart = superblock_addrs[0]; + + Status = NtReadFile(h, NULL, NULL, NULL, &iosb, sb, sblen, &off, NULL); + if (!NT_SUCCESS(Status)) { +#ifndef __REACTOS__ + free(sb); +#else + RtlFreeHeap(RtlGetProcessHeap(), 0, sb); +#endif + return FALSE; + } + + if (sb->magic != BTRFS_MAGIC) { +#ifndef __REACTOS__ + free(sb); +#else + RtlFreeHeap(RtlGetProcessHeap(), 0, sb); +#endif + return FALSE; + } + + crc32 = ~calc_crc32c(0xffffffff, (UINT8*)&sb->uuid, (ULONG)sizeof(superblock) - sizeof(sb->checksum)); + if (crc32 != *((UINT32*)sb)) { +#ifndef __REACTOS__ + free(sb); +#else + RtlFreeHeap(RtlGetProcessHeap(), 0, sb); +#endif + return FALSE; + } + + fsuuid = sb->uuid; + devuuid = sb->dev_item.device_uuid; + +#ifndef __REACTOS__ + free(sb); +#else + RtlFreeHeap(RtlGetProcessHeap(), 0, sb); +#endif + + us.Length = us.MaximumLength = wcslen(btrfs) * sizeof(WCHAR); + us.Buffer = btrfs; + + InitializeObjectAttributes(&atts, &us, 0, NULL, NULL); + + Status = NtOpenFile(&h2, SYNCHRONIZE | FILE_READ_ATTRIBUTES, &atts, &iosb, + FILE_SHARE_READ | FILE_SHARE_WRITE, FILE_SYNCHRONOUS_IO_ALERT); + if (!NT_SUCCESS(Status)) // not a problem, it usually just means the driver isn't loaded + return FALSE; + + bfssize = 0; + + do { + bfssize += 1024; + +#ifndef __REACTOS__ + if (bfs) free(bfs); + bfs = malloc(bfssize); +#else + if (bfs) RtlFreeHeap(RtlGetProcessHeap(), 0, bfs); + bfs = RtlAllocateHeap(RtlGetProcessHeap(), 0, bfssize); +#endif + + Status = NtDeviceIoControlFile(h2, NULL, NULL, NULL, &iosb, IOCTL_BTRFS_QUERY_FILESYSTEMS, NULL, 0, bfs, bfssize); + if (!NT_SUCCESS(Status) && Status != STATUS_BUFFER_OVERFLOW) { + NtClose(h2); + return FALSE; + } + } while (Status == STATUS_BUFFER_OVERFLOW); + + if (!NT_SUCCESS(Status)) + goto end; + + if (bfs->num_devices != 0) { + bfs2 = bfs; + while (TRUE) { + if (RtlCompareMemory(&bfs2->uuid, &fsuuid, sizeof(BTRFS_UUID)) == sizeof(BTRFS_UUID)) { + if (bfs2->num_devices == 1) + ret = FALSE; + else + ret = look_for_device(bfs2, &devuuid); + + goto end; + } + + if (bfs2->next_entry == 0) + break; + else + bfs2 = (btrfs_filesystem*)((UINT8*)bfs2 + bfs2->next_entry); + } + } + +end: + NtClose(h2); + + if (bfs) +#ifndef __REACTOS__ + free(bfs); +#else + RtlFreeHeap(RtlGetProcessHeap(), 0, bfs); +#endif + + return ret; +} + +static void add_drive_letter(HANDLE h) { + NTSTATUS Status; + IO_STATUS_BLOCK iosb; + MOUNTDEV_NAME mdn, *mdn2; + UNICODE_STRING us; + OBJECT_ATTRIBUTES attr; + HANDLE mountmgr; + MOUNTMGR_DRIVE_LETTER_INFORMATION mdli; + + Status = NtDeviceIoControlFile(h, NULL, NULL, NULL, &iosb, IOCTL_MOUNTDEV_QUERY_DEVICE_NAME, NULL, 0, &mdn, sizeof(mdn)); + if (!NT_SUCCESS(Status) && Status != STATUS_BUFFER_OVERFLOW) + return; + +#ifndef __REACTOS__ + mdn2 = malloc(offsetof(MOUNTDEV_NAME, Name[0]) + mdn.NameLength); +#else + mdn2 = RtlAllocateHeap(RtlGetProcessHeap(), 0, offsetof(MOUNTDEV_NAME, Name[0]) + mdn.NameLength); +#endif + + Status = NtDeviceIoControlFile(h, NULL, NULL, NULL, &iosb, IOCTL_MOUNTDEV_QUERY_DEVICE_NAME, NULL, 0, mdn2, offsetof(MOUNTDEV_NAME, Name[0]) + mdn.NameLength); + if (!NT_SUCCESS(Status)) + goto end; + + RtlInitUnicodeString(&us, MOUNTMGR_DEVICE_NAME); + InitializeObjectAttributes(&attr, &us, 0, NULL, NULL); + + Status = NtOpenFile(&mountmgr, FILE_GENERIC_READ | FILE_GENERIC_WRITE, &attr, &iosb, + FILE_SHARE_READ, FILE_SYNCHRONOUS_IO_ALERT); + + if (!NT_SUCCESS(Status)) + goto end; + + // MOUNTDEV_NAME is identical to MOUNTMGR_TARGET_NAME + Status = NtDeviceIoControlFile(mountmgr, NULL, NULL, NULL, &iosb, IOCTL_MOUNTMGR_VOLUME_ARRIVAL_NOTIFICATION, + mdn2, offsetof(MOUNTDEV_NAME, Name[0]) + mdn.NameLength, NULL, 0); + if (!NT_SUCCESS(Status)) + goto end2; + + // MOUNTDEV_NAME is identical to MOUNTMGR_DRIVE_LETTER_TARGET + Status = NtDeviceIoControlFile(mountmgr, NULL, NULL, NULL, &iosb, IOCTL_MOUNTMGR_NEXT_DRIVE_LETTER, + mdn2, offsetof(MOUNTDEV_NAME, Name[0]) + mdn.NameLength, &mdli, sizeof(mdli)); + if (!NT_SUCCESS(Status)) + goto end2; + +end2: + NtClose(mountmgr); + +end: +#ifndef __REACTOS__ + free(mdn2); +#else + RtlFreeHeap(RtlGetProcessHeap(), 0, mdn2); +#endif +} + +#ifndef __REACTOS__ +NTSTATUS NTAPI FormatEx(PUNICODE_STRING DriveRoot, FMIFS_MEDIA_FLAG MediaFlag, PUNICODE_STRING Label, +#else +NTSTATUS NTAPI BtrfsFormatEx(PUNICODE_STRING DriveRoot, FMIFS_MEDIA_FLAG MediaFlag, PUNICODE_STRING Label, +#endif + BOOLEAN QuickFormat, ULONG ClusterSize, PFMIFSCALLBACK Callback) +{ + NTSTATUS Status; + HANDLE h; + OBJECT_ATTRIBUTES attr; + IO_STATUS_BLOCK iosb; + GET_LENGTH_INFORMATION gli; + DISK_GEOMETRY_EX dgex; + UINT32 sector_size; + + InitializeObjectAttributes(&attr, DriveRoot, 0, NULL, NULL); + + Status = NtOpenFile(&h, FILE_GENERIC_READ | FILE_GENERIC_WRITE, &attr, &iosb, + FILE_SHARE_READ, FILE_SYNCHRONOUS_IO_ALERT); + + if (!NT_SUCCESS(Status)) + return Status; + + Status = NtDeviceIoControlFile(h, NULL, NULL, NULL, &iosb, IOCTL_DISK_GET_LENGTH_INFO, NULL, 0, &gli, sizeof(gli)); + if (!NT_SUCCESS(Status)) { + NtClose(h); + return Status; + } + + Status = NtDeviceIoControlFile(h, NULL, NULL, NULL, &iosb, IOCTL_DISK_GET_DRIVE_GEOMETRY_EX, NULL, 0, &dgex, sizeof(dgex)); + if (!NT_SUCCESS(Status)) { + NtClose(h); + return Status; + } + + sector_size = dgex.Geometry.BytesPerSector; + + if (sector_size == 0x200 || sector_size == 0) + sector_size = 0x1000; + + if (Callback) { + ULONG pc = 0; + Callback(PROGRESS, 0, (PVOID)&pc); + } + + NtFsControlFile(h, NULL, NULL, NULL, &iosb, FSCTL_LOCK_VOLUME, NULL, 0, NULL, 0); + + if (is_mounted_multi_device(h, sector_size)) { + Status = STATUS_ACCESS_DENIED; + goto end; + } + + Status = write_btrfs(h, gli.Length.QuadPart, Label, sector_size); + + NtFsControlFile(h, NULL, NULL, NULL, &iosb, FSCTL_DISMOUNT_VOLUME, NULL, 0, NULL, 0); + +end: + NtFsControlFile(h, NULL, NULL, NULL, &iosb, FSCTL_UNLOCK_VOLUME, NULL, 0, NULL, 0); + + if (NT_SUCCESS(Status)) + add_drive_letter(h); + + NtClose(h); + + if (Callback) { + BOOL success = NT_SUCCESS(Status); + Callback(DONE, 0, (PVOID)&success); + } + + return Status; +} + +#ifndef __REACTOS__ +BOOL APIENTRY DllMain(HANDLE hModule, DWORD dwReason, void* lpReserved) { + if (dwReason == DLL_PROCESS_ATTACH) + module = (HMODULE)hModule; + + return TRUE; +} +#endif
Propchange: trunk/reactos/sdk/lib/fslib/btrfslib/btrfslib.c ------------------------------------------------------------------------------ svn:eol-style = native
-
pschweitzer＠svn.reactos.org