--- /dev/null
+/* Copyright (c) Mark Harmstone 2017
+ *
+ * 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 "shellext.h"
+#include <windows.h>
+#include <strsafe.h>
+#include <stddef.h>
+#include <sys/stat.h>
+#include <string>
+#include "recv.h"
+#include "resource.h"
+
+#ifndef __REACTOS__
+#ifndef _MSC_VER
+#include <cpuid.h>
+#else
+#include <intrin.h>
+#endif
+
+#include <smmintrin.h>
+#endif
+
+#define EA_NTACL "security.NTACL"
+#define EA_DOSATTRIB "user.DOSATTRIB"
+#define EA_REPARSE "user.reparse"
+#define EA_EA "user.EA"
+#define XATTR_USER "user."
+
+#ifndef __REACTOS__
+BOOL have_sse42 = FALSE;
+#endif
+
+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,
+};
+
+// HW code taken from https://github.com/rurban/smhasher/blob/master/crc32_hw.c
+#define ALIGN_SIZE 0x08UL
+#define ALIGN_MASK (ALIGN_SIZE - 1)
+#define CALC_CRC(op, crc, type, buf, len) \
+do { \
+ for (; (len) >= sizeof (type); (len) -= sizeof(type), buf += sizeof (type)) { \
+ (crc) = op((crc), *(type *) (buf)); \
+ } \
+} while(0)
+
+#ifndef __REACTOS__
+static UINT32 crc32c_hw(const void *input, ULONG len, UINT32 crc) {
+ const char* buf = (const char*)input;
+
+ // Annoyingly, the CRC32 intrinsics don't work properly in modern versions of MSVC -
+ // it compiles _mm_crc32_u8 as if it was _mm_crc32_u32. And because we're apparently
+ // not allowed to use inline asm on amd64, there's no easy way to fix this!
+
+ for (; (len > 0) && ((size_t)buf & ALIGN_MASK); len--, buf++) {
+#ifdef _MSC_VER
+ crc = crctable[(crc ^ *buf) & 0xff] ^ (crc >> 8);
+#else
+ crc = _mm_crc32_u8(crc, *buf);
+#endif
+ }
+
+#ifdef _AMD64_
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable:4244) // _mm_crc32_u64 wants to return UINT64(!)
+#pragma warning(disable:4242)
+#endif
+ CALC_CRC(_mm_crc32_u64, crc, UINT64, buf, len);
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
+#endif
+ CALC_CRC(_mm_crc32_u32, crc, UINT32, buf, len);
+
+#ifdef _MSC_VER
+ for (; len > 0; len--, buf++) {
+ crc = crctable[(crc ^ *buf) & 0xff] ^ (crc >> 8);
+ }
+#else
+ CALC_CRC(_mm_crc32_u16, crc, UINT16, buf, len);
+ CALC_CRC(_mm_crc32_u8, crc, UINT8, buf, len);
+#endif
+
+ return crc;
+}
+#endif
+
+static UINT32 calc_crc32c(UINT32 seed, UINT8* msg, ULONG msglen) {
+#ifndef __REACTOS__
+ if (have_sse42)
+ return crc32c_hw(msg, msglen, seed);
+ else {
+#endif
+ UINT32 rem;
+ ULONG i;
+
+ rem = seed;
+
+ for (i = 0; i < msglen; i++) {
+ rem = crctable[(rem ^ msg[i]) & 0xff] ^ (rem >> 8);
+ }
+
+ return rem;
+#ifndef __REACTOS__
+ }
+#endif
+}
+
+BOOL BtrfsRecv::find_tlv(UINT8* data, ULONG datalen, UINT16 type, void** value, ULONG* len) {
+ ULONG off = 0;
+
+ while (off < datalen) {
+ btrfs_send_tlv* tlv = (btrfs_send_tlv*)(data + off);
+ UINT8* payload = data + off + sizeof(btrfs_send_tlv);
+
+ if (off + sizeof(btrfs_send_tlv) + tlv->length > datalen) // file is truncated
+ return FALSE;
+
+ if (tlv->type == type) {
+ *value = payload;
+ *len = tlv->length;
+ return TRUE;
+ }
+
+ off += sizeof(btrfs_send_tlv) + tlv->length;
+ }
+
+ return FALSE;
+}
+
+BOOL BtrfsRecv::utf8_to_utf16(HWND hwnd, char* utf8, ULONG utf8len, std::wstring* utf16) {
+ NTSTATUS Status;
+ ULONG utf16len;
+ WCHAR* buf;
+
+ Status = RtlUTF8ToUnicodeN(NULL, 0, &utf16len, utf8, utf8len);
+ if (!NT_SUCCESS(Status)) {
+ ShowRecvError(IDS_RECV_RTLUTF8TOUNICODEN_FAILED, Status, format_ntstatus(Status).c_str());
+ return FALSE;
+ }
+
+ buf = (WCHAR*)malloc(utf16len + sizeof(WCHAR));
+
+ if (!buf) {
+ ShowRecvError(IDS_OUT_OF_MEMORY);
+ return FALSE;
+ }
+
+ Status = RtlUTF8ToUnicodeN(buf, utf16len, &utf16len, utf8, utf8len);
+ if (!NT_SUCCESS(Status)) {
+ ShowRecvError(IDS_RECV_RTLUTF8TOUNICODEN_FAILED, Status, format_ntstatus(Status).c_str());
+ free(buf);
+ return FALSE;
+ }
+
+ buf[utf16len / sizeof(WCHAR)] = 0;
+
+ *utf16 = buf;
+
+ free(buf);
+
+ return TRUE;
+}
+
+BOOL BtrfsRecv::cmd_subvol(HWND hwnd, btrfs_send_command* cmd, UINT8* data) {
+ char* name;
+ BTRFS_UUID* uuid;
+ UINT64* gen;
+ ULONG namelen, uuidlen, genlen, bcslen;
+ btrfs_create_subvol* bcs;
+ NTSTATUS Status;
+ IO_STATUS_BLOCK iosb;
+ std::wstring nameu;
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_PATH, (void**)&name, &namelen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"path");
+ return FALSE;
+ }
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_UUID, (void**)&uuid, &uuidlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"uuid");
+ return FALSE;
+ }
+
+ if (uuidlen < sizeof(BTRFS_UUID)) {
+ ShowRecvError(IDS_RECV_SHORT_PARAM, funcname, L"uuid", uuidlen, sizeof(BTRFS_UUID));
+ return FALSE;
+ }
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_TRANSID, (void**)&gen, &genlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"transid");
+ return FALSE;
+ }
+
+ if (genlen < sizeof(UINT64)) {
+ ShowRecvError(IDS_RECV_SHORT_PARAM, funcname, L"transid", genlen, sizeof(UINT64));
+ return FALSE;
+ }
+
+ this->subvol_uuid = *uuid;
+ this->stransid = *gen;
+
+ if (!utf8_to_utf16(hwnd, name, namelen, &nameu))
+ return FALSE;
+
+ bcslen = offsetof(btrfs_create_subvol, name[0]) + (nameu.length() * sizeof(WCHAR));
+ bcs = (btrfs_create_subvol*)malloc(bcslen);
+
+ bcs->readonly = TRUE;
+ bcs->posix = TRUE;
+ bcs->namelen = nameu.length() * sizeof(WCHAR);
+ memcpy(bcs->name, nameu.c_str(), bcs->namelen);
+
+ Status = NtFsControlFile(parent, NULL, NULL, NULL, &iosb, FSCTL_BTRFS_CREATE_SUBVOL, bcs, bcslen, NULL, 0);
+ if (!NT_SUCCESS(Status)) {
+ ShowRecvError(IDS_RECV_CREATE_SUBVOL_FAILED, Status, format_ntstatus(Status).c_str());
+ return FALSE;
+ }
+
+ subvolpath = dirpath;
+ subvolpath += L"\\";
+ subvolpath += nameu;
+
+ if (dir != INVALID_HANDLE_VALUE)
+ CloseHandle(dir);
+
+ if (master != INVALID_HANDLE_VALUE)
+ CloseHandle(master);
+
+ master = CreateFileW(subvolpath.c_str(), GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
+ NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_POSIX_SEMANTICS, NULL);
+ if (master == INVALID_HANDLE_VALUE) {
+ ShowRecvError(IDS_RECV_CANT_OPEN_PATH, subvolpath.c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ Status = NtFsControlFile(master, NULL, NULL, NULL, &iosb, FSCTL_BTRFS_RESERVE_SUBVOL, bcs, bcslen, NULL, 0);
+ if (!NT_SUCCESS(Status)) {
+ ShowRecvError(IDS_RECV_RESERVE_SUBVOL_FAILED, Status, format_ntstatus(Status).c_str());
+ return FALSE;
+ }
+
+ dir = CreateFileW(subvolpath.c_str(), FILE_ADD_SUBDIRECTORY | FILE_ADD_FILE,
+ FILE_SHARE_READ | FILE_SHARE_WRITE,
+ NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_POSIX_SEMANTICS, NULL);
+ if (dir == INVALID_HANDLE_VALUE) {
+ ShowRecvError(IDS_RECV_CANT_OPEN_PATH, subvolpath.c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ subvolpath += L"\\";
+
+ add_cache_entry(&this->subvol_uuid, this->stransid, subvolpath);
+
+ num_received++;
+
+ return TRUE;
+}
+
+void BtrfsRecv::add_cache_entry(BTRFS_UUID* uuid, UINT64 transid, std::wstring path) {
+ subvol_cache sc;
+
+ sc.uuid = *uuid;
+ sc.transid = transid;
+ sc.path = path;
+
+ cache.push_back(sc);
+}
+
+BOOL BtrfsRecv::cmd_snapshot(HWND hwnd, btrfs_send_command* cmd, UINT8* data) {
+ char* name;
+ BTRFS_UUID *uuid, *parent_uuid;
+ UINT64 *gen, *parent_transid;
+ ULONG namelen, uuidlen, genlen, paruuidlen, partransidlen, bcslen;
+ btrfs_create_snapshot* bcs;
+ NTSTATUS Status;
+ IO_STATUS_BLOCK iosb;
+ std::wstring nameu, parpath;
+ btrfs_find_subvol bfs;
+ WCHAR parpathw[MAX_PATH], volpathw[MAX_PATH];
+ HANDLE subvol;
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_PATH, (void**)&name, &namelen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"path");
+ return FALSE;
+ }
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_UUID, (void**)&uuid, &uuidlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"uuid");
+ return FALSE;
+ }
+
+ if (uuidlen < sizeof(BTRFS_UUID)) {
+ ShowRecvError(IDS_RECV_SHORT_PARAM, funcname, L"uuid", uuidlen, sizeof(BTRFS_UUID));
+ return FALSE;
+ }
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_TRANSID, (void**)&gen, &genlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"transid");
+ return FALSE;
+ }
+
+ if (genlen < sizeof(UINT64)) {
+ ShowRecvError(IDS_RECV_SHORT_PARAM, funcname, L"transid", genlen, sizeof(UINT64));
+ return FALSE;
+ }
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_CLONE_UUID, (void**)&parent_uuid, &paruuidlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"clone_uuid");
+ return FALSE;
+ }
+
+ if (paruuidlen < sizeof(BTRFS_UUID)) {
+ ShowRecvError(IDS_RECV_SHORT_PARAM, funcname, L"clone_uuid", paruuidlen, sizeof(BTRFS_UUID));
+ return FALSE;
+ }
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_CLONE_CTRANSID, (void**)&parent_transid, &partransidlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"clone_ctransid");
+ return FALSE;
+ }
+
+ if (partransidlen < sizeof(UINT64)) {
+ ShowRecvError(IDS_RECV_SHORT_PARAM, funcname, L"clone_ctransid", partransidlen, sizeof(UINT64));
+ return FALSE;
+ }
+
+ this->subvol_uuid = *uuid;
+ this->stransid = *gen;
+
+ if (!utf8_to_utf16(hwnd, name, namelen, &nameu))
+ return FALSE;
+
+ bfs.uuid = *parent_uuid;
+ bfs.ctransid = *parent_transid;
+
+ Status = NtFsControlFile(parent, NULL, NULL, NULL, &iosb, FSCTL_BTRFS_FIND_SUBVOL, &bfs, sizeof(btrfs_find_subvol),
+ parpathw, sizeof(parpathw));
+ if (Status == STATUS_NOT_FOUND) {
+ ShowRecvError(IDS_RECV_CANT_FIND_PARENT_SUBVOL);
+ return FALSE;
+ } else if (!NT_SUCCESS(Status)) {
+ ShowRecvError(IDS_RECV_FIND_SUBVOL_FAILED, Status, format_ntstatus(Status).c_str());
+ return FALSE;
+ }
+
+ if (!GetVolumePathNameW(dirpath.c_str(), volpathw, (sizeof(volpathw) / sizeof(WCHAR)) - 1)) {
+ ShowRecvError(IDS_RECV_GETVOLUMEPATHNAME_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ parpath = volpathw;
+ if (parpath.substr(parpath.length() - 1) == L"\\")
+ parpath = parpath.substr(0, parpath.length() - 1);
+
+ parpath += parpathw;
+
+ subvol = CreateFileW(parpath.c_str(), FILE_TRAVERSE, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
+ NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
+ if (subvol == INVALID_HANDLE_VALUE) {
+ ShowRecvError(IDS_RECV_CANT_OPEN_PATH, parpath.c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ bcslen = offsetof(btrfs_create_snapshot, name[0]) + (nameu.length() * sizeof(WCHAR));
+ bcs = (btrfs_create_snapshot*)malloc(bcslen);
+
+ bcs->readonly = TRUE;
+ bcs->posix = TRUE;
+ bcs->subvol = subvol;
+ bcs->namelen = nameu.length() * sizeof(WCHAR);
+ memcpy(bcs->name, nameu.c_str(), bcs->namelen);
+
+ Status = NtFsControlFile(parent, NULL, NULL, NULL, &iosb, FSCTL_BTRFS_CREATE_SNAPSHOT, bcs, bcslen, NULL, 0);
+ if (!NT_SUCCESS(Status)) {
+ ShowRecvError(IDS_RECV_CREATE_SNAPSHOT_FAILED, Status, format_ntstatus(Status).c_str());
+ return FALSE;
+ }
+
+ subvolpath = dirpath;
+ subvolpath += L"\\";
+ subvolpath += nameu;
+
+ if (dir != INVALID_HANDLE_VALUE)
+ CloseHandle(dir);
+
+ if (master != INVALID_HANDLE_VALUE)
+ CloseHandle(master);
+
+ master = CreateFileW(subvolpath.c_str(), GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
+ NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_POSIX_SEMANTICS, NULL);
+ if (master == INVALID_HANDLE_VALUE) {
+ ShowRecvError(IDS_RECV_CANT_OPEN_PATH, subvolpath.c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ Status = NtFsControlFile(master, NULL, NULL, NULL, &iosb, FSCTL_BTRFS_RESERVE_SUBVOL, bcs, bcslen, NULL, 0);
+ if (!NT_SUCCESS(Status)) {
+ ShowRecvError(IDS_RECV_RESERVE_SUBVOL_FAILED, Status, format_ntstatus(Status).c_str());
+ return FALSE;
+ }
+
+ dir = CreateFileW(subvolpath.c_str(), FILE_ADD_SUBDIRECTORY | FILE_ADD_FILE,
+ FILE_SHARE_READ | FILE_SHARE_WRITE,
+ NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_POSIX_SEMANTICS, NULL);
+ if (dir == INVALID_HANDLE_VALUE) {
+ ShowRecvError(IDS_RECV_CANT_OPEN_PATH, subvolpath.c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ subvolpath += L"\\";
+
+ add_cache_entry(&this->subvol_uuid, this->stransid, subvolpath);
+
+ num_received++;
+
+ return TRUE;
+}
+
+BOOL BtrfsRecv::cmd_mkfile(HWND hwnd, btrfs_send_command* cmd, UINT8* data) {
+ char *name, *pathlink;
+ UINT64 *inode, *rdev = NULL, *mode = NULL;
+ ULONG namelen, inodelen, bmnsize;
+ NTSTATUS Status;
+ IO_STATUS_BLOCK iosb;
+ btrfs_mknod* bmn;
+ std::wstring nameu, pathlinku;
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_PATH, (void**)&name, &namelen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"path");
+ return FALSE;
+ }
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_INODE, (void**)&inode, &inodelen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"inode");
+ return FALSE;
+ }
+
+ if (inodelen < sizeof(UINT64)) {
+ ShowRecvError(IDS_RECV_SHORT_PARAM, funcname, L"inode", inodelen, sizeof(UINT64));
+ return FALSE;
+ }
+
+ if (cmd->cmd == BTRFS_SEND_CMD_MKNOD || cmd->cmd == BTRFS_SEND_CMD_MKFIFO || cmd->cmd == BTRFS_SEND_CMD_MKSOCK) {
+ ULONG rdevlen, modelen;
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_RDEV, (void**)&rdev, &rdevlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"rdev");
+ return FALSE;
+ }
+
+ if (rdevlen < sizeof(UINT64)) {
+ ShowRecvError(IDS_RECV_SHORT_PARAM, funcname, L"rdev", rdev, sizeof(UINT64));
+ return FALSE;
+ }
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_MODE, (void**)&mode, &modelen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"mode");
+ return FALSE;
+ }
+
+ if (modelen < sizeof(UINT64)) {
+ ShowRecvError(IDS_RECV_SHORT_PARAM, funcname, L"mode", modelen, sizeof(UINT64));
+ return FALSE;
+ }
+ } else if (cmd->cmd == BTRFS_SEND_CMD_SYMLINK) {
+ ULONG pathlinklen;
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_PATH_LINK, (void**)&pathlink, &pathlinklen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"path_link");
+ return FALSE;
+ }
+
+ if (!utf8_to_utf16(hwnd, pathlink, pathlinklen, &pathlinku))
+ return FALSE;
+ }
+
+ if (!utf8_to_utf16(hwnd, name, namelen, &nameu))
+ return FALSE;
+
+ bmnsize = sizeof(btrfs_mknod) - sizeof(WCHAR) + (nameu.length() * sizeof(WCHAR));
+ bmn = (btrfs_mknod*)malloc(bmnsize);
+
+ bmn->inode = *inode;
+
+ if (cmd->cmd == BTRFS_SEND_CMD_MKDIR)
+ bmn->type = BTRFS_TYPE_DIRECTORY;
+ else if (cmd->cmd == BTRFS_SEND_CMD_MKNOD)
+ bmn->type = *mode & S_IFCHR ? BTRFS_TYPE_CHARDEV : BTRFS_TYPE_BLOCKDEV;
+ else if (cmd->cmd == BTRFS_SEND_CMD_MKFIFO)
+ bmn->type = BTRFS_TYPE_FIFO;
+ else if (cmd->cmd == BTRFS_SEND_CMD_MKSOCK)
+ bmn->type = BTRFS_TYPE_SOCKET;
+ else
+ bmn->type = BTRFS_TYPE_FILE;
+
+ bmn->st_rdev = rdev ? *rdev : 0;
+ bmn->namelen = nameu.length() * sizeof(WCHAR);
+ memcpy(bmn->name, nameu.c_str(), bmn->namelen);
+
+ Status = NtFsControlFile(dir, NULL, NULL, NULL, &iosb, FSCTL_BTRFS_MKNOD, bmn, bmnsize, NULL, 0);
+ if (!NT_SUCCESS(Status)) {
+ ShowRecvError(IDS_RECV_MKNOD_FAILED, Status, format_ntstatus(Status).c_str());
+ free(bmn);
+ return FALSE;
+ }
+
+ free(bmn);
+
+ if (cmd->cmd == BTRFS_SEND_CMD_SYMLINK) {
+ HANDLE h;
+ REPARSE_DATA_BUFFER* rdb;
+ ULONG rdblen;
+ btrfs_set_inode_info bsii;
+
+ rdblen = offsetof(REPARSE_DATA_BUFFER, SymbolicLinkReparseBuffer.PathBuffer[0]) + (2 * pathlinku.length() * sizeof(WCHAR));
+
+ rdb = (REPARSE_DATA_BUFFER*)malloc(rdblen);
+
+ rdb->ReparseTag = IO_REPARSE_TAG_SYMLINK;
+ rdb->ReparseDataLength = rdblen - offsetof(REPARSE_DATA_BUFFER, SymbolicLinkReparseBuffer);
+ rdb->Reserved = 0;
+ rdb->SymbolicLinkReparseBuffer.SubstituteNameOffset = 0;
+ rdb->SymbolicLinkReparseBuffer.SubstituteNameLength = pathlinku.length() * sizeof(WCHAR);
+ rdb->SymbolicLinkReparseBuffer.PrintNameOffset = pathlinku.length() * sizeof(WCHAR);
+ rdb->SymbolicLinkReparseBuffer.PrintNameLength = pathlinku.length() * sizeof(WCHAR);
+ rdb->SymbolicLinkReparseBuffer.Flags = SYMLINK_FLAG_RELATIVE;
+
+ memcpy(rdb->SymbolicLinkReparseBuffer.PathBuffer, pathlinku.c_str(), rdb->SymbolicLinkReparseBuffer.SubstituteNameLength);
+ memcpy(rdb->SymbolicLinkReparseBuffer.PathBuffer + (rdb->SymbolicLinkReparseBuffer.SubstituteNameLength / sizeof(WCHAR)),
+ pathlinku.c_str(), rdb->SymbolicLinkReparseBuffer.PrintNameLength);
+
+ h = CreateFileW((subvolpath + nameu).c_str(), GENERIC_WRITE | WRITE_DAC, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
+ NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_POSIX_SEMANTICS, NULL);
+ if (h == INVALID_HANDLE_VALUE) {
+ ShowRecvError(IDS_RECV_CANT_OPEN_FILE, funcname, nameu.c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ free(rdb);
+ return FALSE;
+ }
+
+ Status = NtFsControlFile(h, NULL, NULL, NULL, &iosb, FSCTL_SET_REPARSE_POINT, rdb, rdblen, NULL, 0);
+ if (!NT_SUCCESS(Status)) {
+ ShowRecvError(IDS_RECV_SET_REPARSE_POINT_FAILED, Status, format_ntstatus(Status).c_str());
+ free(rdb);
+ CloseHandle(h);
+ return FALSE;
+ }
+
+ free(rdb);
+
+ memset(&bsii, 0, sizeof(btrfs_set_inode_info));
+
+ bsii.mode_changed = TRUE;
+ bsii.st_mode = 0777;
+
+ Status = NtFsControlFile(h, NULL, NULL, NULL, &iosb, FSCTL_BTRFS_SET_INODE_INFO, &bsii, sizeof(btrfs_set_inode_info), NULL, 0);
+ if (!NT_SUCCESS(Status)) {
+ ShowRecvError(IDS_RECV_SETINODEINFO_FAILED, Status, format_ntstatus(Status).c_str());
+ CloseHandle(h);
+ return FALSE;
+ }
+
+ CloseHandle(h);
+ } else if (cmd->cmd == BTRFS_SEND_CMD_MKNOD || cmd->cmd == BTRFS_SEND_CMD_MKFIFO || cmd->cmd == BTRFS_SEND_CMD_MKSOCK) {
+ UINT64* mode;
+ ULONG modelen;
+
+ if (find_tlv(data, cmd->length, BTRFS_SEND_TLV_MODE, (void**)&mode, &modelen)) {
+ HANDLE h;
+ btrfs_set_inode_info bsii;
+
+ if (modelen < sizeof(UINT64)) {
+ ShowRecvError(IDS_RECV_SHORT_PARAM, funcname, L"mode", modelen, sizeof(UINT64));
+ return FALSE;
+ }
+
+ h = CreateFileW((subvolpath + nameu).c_str(), WRITE_DAC, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
+ NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_POSIX_SEMANTICS, NULL);
+ if (h == INVALID_HANDLE_VALUE) {
+ ShowRecvError(IDS_RECV_CANT_OPEN_FILE, funcname, nameu.c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ memset(&bsii, 0, sizeof(btrfs_set_inode_info));
+
+ bsii.mode_changed = TRUE;
+ bsii.st_mode = *mode;
+
+ Status = NtFsControlFile(h, NULL, NULL, NULL, &iosb, FSCTL_BTRFS_SET_INODE_INFO, &bsii, sizeof(btrfs_set_inode_info), NULL, 0);
+ if (!NT_SUCCESS(Status)) {
+ ShowRecvError(IDS_RECV_SETINODEINFO_FAILED, Status, format_ntstatus(Status).c_str());
+ CloseHandle(h);
+ return FALSE;
+ }
+
+ CloseHandle(h);
+ }
+ }
+
+ return TRUE;
+}
+
+BOOL BtrfsRecv::cmd_rename(HWND hwnd, btrfs_send_command* cmd, UINT8* data) {
+ char *path, *path_to;
+ ULONG path_len, path_to_len;
+ std::wstring pathu, path_tou;
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_PATH, (void**)&path, &path_len)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"path");
+ return FALSE;
+ }
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_PATH_TO, (void**)&path_to, &path_to_len)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"path_to");
+ return FALSE;
+ }
+
+ if (!utf8_to_utf16(hwnd, path, path_len, &pathu))
+ return FALSE;
+
+ if (!utf8_to_utf16(hwnd, path_to, path_to_len, &path_tou))
+ return FALSE;
+
+ if (!MoveFileW((subvolpath + pathu).c_str(), (subvolpath + path_tou).c_str())) {
+ ShowRecvError(IDS_RECV_MOVEFILE_FAILED, pathu.c_str(), path_tou.c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+BOOL BtrfsRecv::cmd_link(HWND hwnd, btrfs_send_command* cmd, UINT8* data) {
+ char *path, *path_link;
+ ULONG path_len, path_link_len;
+ std::wstring pathu, path_linku;
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_PATH, (void**)&path, &path_len)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"path");
+ return FALSE;
+ }
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_PATH_LINK, (void**)&path_link, &path_link_len)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"path_link");
+ return FALSE;
+ }
+
+ if (!utf8_to_utf16(hwnd, path, path_len, &pathu))
+ return FALSE;
+
+ if (!utf8_to_utf16(hwnd, path_link, path_link_len, &path_linku))
+ return FALSE;
+
+ if (!CreateHardLinkW((subvolpath + pathu).c_str(), (subvolpath + path_linku).c_str(), NULL)) {
+ ShowRecvError(IDS_RECV_CREATEHARDLINK_FAILED, pathu.c_str(), path_linku.c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+BOOL BtrfsRecv::cmd_unlink(HWND hwnd, btrfs_send_command* cmd, UINT8* data) {
+ char* path;
+ ULONG pathlen;
+ std::wstring pathu;
+ ULONG att;
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_PATH, (void**)&path, &pathlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"path");
+ return FALSE;
+ }
+
+ if (!utf8_to_utf16(hwnd, path, pathlen, &pathu))
+ return FALSE;
+
+ att = GetFileAttributesW((subvolpath + pathu).c_str());
+ if (att == INVALID_FILE_ATTRIBUTES) {
+ ShowRecvError(IDS_RECV_GETFILEATTRIBUTES_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ if (att & FILE_ATTRIBUTE_READONLY) {
+ if (!SetFileAttributesW((subvolpath + pathu).c_str(), att & ~FILE_ATTRIBUTE_READONLY)) {
+ ShowRecvError(IDS_RECV_SETFILEATTRIBUTES_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+ }
+
+ if (!DeleteFileW((subvolpath + pathu).c_str())) {
+ ShowRecvError(IDS_RECV_DELETEFILE_FAILED, pathu.c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+BOOL BtrfsRecv::cmd_rmdir(HWND hwnd, btrfs_send_command* cmd, UINT8* data) {
+ char* path;
+ ULONG pathlen;
+ std::wstring pathu;
+ ULONG att;
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_PATH, (void**)&path, &pathlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"path");
+ return FALSE;
+ }
+
+ if (!utf8_to_utf16(hwnd, path, pathlen, &pathu))
+ return FALSE;
+
+ att = GetFileAttributesW((subvolpath + pathu).c_str());
+ if (att == INVALID_FILE_ATTRIBUTES) {
+ ShowRecvError(IDS_RECV_GETFILEATTRIBUTES_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ if (att & FILE_ATTRIBUTE_READONLY) {
+ if (!SetFileAttributesW((subvolpath + pathu).c_str(), att & ~FILE_ATTRIBUTE_READONLY)) {
+ ShowRecvError(IDS_RECV_SETFILEATTRIBUTES_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+ }
+
+ if (!RemoveDirectoryW((subvolpath + pathu).c_str())) {
+ ShowRecvError(IDS_RECV_REMOVEDIRECTORY_FAILED, pathu.c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+BOOL BtrfsRecv::cmd_setxattr(HWND hwnd, btrfs_send_command* cmd, UINT8* data) {
+ char *path, *xattrname;
+ UINT8* xattrdata;
+ ULONG pathlen, xattrnamelen, xattrdatalen;
+ std::wstring pathu;
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_PATH, (void**)&path, &pathlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"path");
+ return FALSE;
+ }
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_XATTR_NAME, (void**)&xattrname, &xattrnamelen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"xattr_name");
+ return FALSE;
+ }
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_XATTR_DATA, (void**)&xattrdata, &xattrdatalen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"xattr_data");
+ return FALSE;
+ }
+
+ if (!utf8_to_utf16(hwnd, path, pathlen, &pathu))
+ return FALSE;
+
+ if (xattrnamelen > strlen(XATTR_USER) && !memcmp(xattrname, XATTR_USER, strlen(XATTR_USER)) &&
+ (xattrnamelen != strlen(EA_DOSATTRIB) || memcmp(xattrname, EA_DOSATTRIB, xattrnamelen)) &&
+ (xattrnamelen != strlen(EA_EA) || memcmp(xattrname, EA_EA, xattrnamelen)) &&
+ (xattrnamelen != strlen(EA_REPARSE) || memcmp(xattrname, EA_REPARSE, xattrnamelen))) {
+ HANDLE h;
+ std::wstring streamname;
+ ULONG att;
+
+ if (!utf8_to_utf16(hwnd, xattrname, xattrnamelen, &streamname))
+ return FALSE;
+
+ att = GetFileAttributesW((subvolpath + pathu).c_str());
+ if (att == INVALID_FILE_ATTRIBUTES) {
+ ShowRecvError(IDS_RECV_GETFILEATTRIBUTES_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ if (att & FILE_ATTRIBUTE_READONLY) {
+ if (!SetFileAttributesW((subvolpath + pathu).c_str(), att & ~FILE_ATTRIBUTE_READONLY)) {
+ ShowRecvError(IDS_RECV_SETFILEATTRIBUTES_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+ }
+
+ streamname = streamname.substr(strlen(XATTR_USER));
+
+ h = CreateFileW((subvolpath + pathu + L":" + streamname).c_str(), GENERIC_WRITE, 0,
+ NULL, CREATE_ALWAYS, FILE_FLAG_POSIX_SEMANTICS, NULL);
+ if (h == INVALID_HANDLE_VALUE) {
+ ShowRecvError(IDS_RECV_CANT_CREATE_FILE, (pathu + L":" + streamname).c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ if (xattrdatalen > 0) {
+ if (!WriteFile(h, xattrdata, xattrdatalen, NULL, NULL)) {
+ ShowRecvError(IDS_RECV_WRITEFILE_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ CloseHandle(h);
+ return FALSE;
+ }
+ }
+
+ CloseHandle(h);
+
+ if (att & FILE_ATTRIBUTE_READONLY) {
+ if (!SetFileAttributesW((subvolpath + pathu).c_str(), att)) {
+ ShowRecvError(IDS_RECV_SETFILEATTRIBUTES_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+ }
+ } else {
+ HANDLE h;
+ IO_STATUS_BLOCK iosb;
+ NTSTATUS Status;
+ ULONG bsxalen, perms = FILE_WRITE_ATTRIBUTES;
+ btrfs_set_xattr* bsxa;
+
+ if (xattrnamelen == strlen(EA_NTACL) && !memcmp(xattrname, EA_NTACL, xattrnamelen))
+ perms |= WRITE_DAC | WRITE_OWNER;
+ else if (xattrnamelen == strlen(EA_EA) && !memcmp(xattrname, EA_EA, xattrnamelen))
+ perms |= FILE_WRITE_EA;
+
+ h = CreateFileW((subvolpath + pathu).c_str(), perms, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
+ NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_POSIX_SEMANTICS | FILE_OPEN_REPARSE_POINT, NULL);
+ if (h == INVALID_HANDLE_VALUE) {
+ ShowRecvError(IDS_RECV_CANT_OPEN_FILE, funcname, pathu.c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ bsxalen = offsetof(btrfs_set_xattr, data[0]) + xattrnamelen + xattrdatalen;
+ bsxa = (btrfs_set_xattr*)malloc(bsxalen);
+ if (!bsxa) {
+ ShowRecvError(IDS_OUT_OF_MEMORY);
+ CloseHandle(h);
+ return FALSE;
+ }
+
+ bsxa->namelen = xattrnamelen;
+ bsxa->valuelen = xattrdatalen;
+ memcpy(bsxa->data, xattrname, xattrnamelen);
+ memcpy(&bsxa->data[xattrnamelen], xattrdata, xattrdatalen);
+
+ Status = NtFsControlFile(h, NULL, NULL, NULL, &iosb, FSCTL_BTRFS_SET_XATTR, bsxa, bsxalen, NULL, 0);
+ if (!NT_SUCCESS(Status)) {
+ ShowRecvError(IDS_RECV_SETXATTR_FAILED, Status, format_ntstatus(Status).c_str());
+ free(bsxa);
+ CloseHandle(h);
+ return FALSE;
+ }
+
+ free(bsxa);
+ CloseHandle(h);
+ }
+
+ return TRUE;
+}
+
+BOOL BtrfsRecv::cmd_removexattr(HWND hwnd, btrfs_send_command* cmd, UINT8* data) {
+ char *path, *xattrname;
+ ULONG pathlen, xattrnamelen;
+ std::wstring pathu;
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_PATH, (void**)&path, &pathlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"path");
+ return FALSE;
+ }
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_XATTR_NAME, (void**)&xattrname, &xattrnamelen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"xattr_name");
+ return FALSE;
+ }
+
+ if (!utf8_to_utf16(hwnd, path, pathlen, &pathu))
+ return FALSE;
+
+ if (xattrnamelen > strlen(XATTR_USER) && !memcmp(xattrname, XATTR_USER, strlen(XATTR_USER)) &&
+ (xattrnamelen != strlen(EA_DOSATTRIB) || memcmp(xattrname, EA_DOSATTRIB, xattrnamelen)) &&
+ (xattrnamelen != strlen(EA_EA) || memcmp(xattrname, EA_EA, xattrnamelen))) { // deleting stream
+ ULONG att;
+ std::wstring streamname;
+
+ if (!utf8_to_utf16(hwnd, xattrname, xattrnamelen, &streamname))
+ return FALSE;
+
+ streamname = streamname.substr(strlen(XATTR_USER));
+
+ att = GetFileAttributesW((subvolpath + pathu).c_str());
+ if (att == INVALID_FILE_ATTRIBUTES) {
+ ShowRecvError(IDS_RECV_GETFILEATTRIBUTES_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ if (att & FILE_ATTRIBUTE_READONLY) {
+ if (!SetFileAttributesW((subvolpath + pathu).c_str(), att & ~FILE_ATTRIBUTE_READONLY)) {
+ ShowRecvError(IDS_RECV_SETFILEATTRIBUTES_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+ }
+
+ if (!DeleteFileW((subvolpath + pathu + L":" + streamname).c_str())) {
+ ShowRecvError(IDS_RECV_DELETEFILE_FAILED, (pathu + L":" + streamname).c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ if (att & FILE_ATTRIBUTE_READONLY) {
+ if (!SetFileAttributesW((subvolpath + pathu).c_str(), att)) {
+ ShowRecvError(IDS_RECV_SETFILEATTRIBUTES_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+ }
+ } else {
+ HANDLE h;
+ IO_STATUS_BLOCK iosb;
+ NTSTATUS Status;
+ ULONG bsxalen, perms = FILE_WRITE_ATTRIBUTES;
+ btrfs_set_xattr* bsxa;
+
+ if (xattrnamelen == strlen(EA_NTACL) && !memcmp(xattrname, EA_NTACL, xattrnamelen))
+ perms |= WRITE_DAC | WRITE_OWNER;
+ else if (xattrnamelen == strlen(EA_EA) && !memcmp(xattrname, EA_EA, xattrnamelen))
+ perms |= FILE_WRITE_EA;
+
+ h = CreateFileW((subvolpath + pathu).c_str(), perms, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
+ NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_POSIX_SEMANTICS | FILE_OPEN_REPARSE_POINT, NULL);
+ if (h == INVALID_HANDLE_VALUE) {
+ ShowRecvError(IDS_RECV_CANT_OPEN_FILE, funcname, pathu.c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ bsxalen = offsetof(btrfs_set_xattr, data[0]) + xattrnamelen;
+ bsxa = (btrfs_set_xattr*)malloc(bsxalen);
+ if (!bsxa) {
+ ShowRecvError(IDS_OUT_OF_MEMORY);
+ CloseHandle(h);
+ return FALSE;
+ }
+
+ bsxa->namelen = xattrnamelen;
+ bsxa->valuelen = 0;
+ memcpy(bsxa->data, xattrname, xattrnamelen);
+
+ Status = NtFsControlFile(h, NULL, NULL, NULL, &iosb, FSCTL_BTRFS_SET_XATTR, bsxa, bsxalen, NULL, 0);
+ if (!NT_SUCCESS(Status)) {
+ ShowRecvError(IDS_RECV_SETXATTR_FAILED, Status, format_ntstatus(Status).c_str());
+ free(bsxa);
+ CloseHandle(h);
+ return FALSE;
+ }
+
+ free(bsxa);
+ CloseHandle(h);
+ }
+
+ return TRUE;
+}
+
+BOOL BtrfsRecv::cmd_write(HWND hwnd, btrfs_send_command* cmd, UINT8* data) {
+ char* path;
+ UINT64* offset;
+ UINT8* writedata;
+ ULONG pathlen, offsetlen, datalen;
+ std::wstring pathu;
+ HANDLE h;
+ LARGE_INTEGER offli;
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_PATH, (void**)&path, &pathlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"path");
+ return FALSE;
+ }
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_OFFSET, (void**)&offset, &offsetlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"offset");
+ return FALSE;
+ }
+
+ if (offsetlen < sizeof(UINT64)) {
+ ShowRecvError(IDS_RECV_SHORT_PARAM, funcname, L"offset", offsetlen, sizeof(UINT64));
+ return FALSE;
+ }
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_DATA, (void**)&writedata, &datalen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"data");
+ return FALSE;
+ }
+
+ if (!utf8_to_utf16(hwnd, path, pathlen, &pathu))
+ return FALSE;
+
+ if (lastwritepath != pathu) {
+ FILE_BASIC_INFO fbi;
+
+ if (lastwriteatt & FILE_ATTRIBUTE_READONLY) {
+ if (!SetFileAttributesW((subvolpath + lastwritepath).c_str(), lastwriteatt)) {
+ ShowRecvError(IDS_RECV_SETFILEATTRIBUTES_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+ }
+
+ CloseHandle(lastwritefile);
+
+ lastwriteatt = GetFileAttributesW((subvolpath + pathu).c_str());
+ if (lastwriteatt == INVALID_FILE_ATTRIBUTES) {
+ ShowRecvError(IDS_RECV_GETFILEATTRIBUTES_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ if (lastwriteatt & FILE_ATTRIBUTE_READONLY) {
+ if (!SetFileAttributesW((subvolpath + pathu).c_str(), lastwriteatt & ~FILE_ATTRIBUTE_READONLY)) {
+ ShowRecvError(IDS_RECV_SETFILEATTRIBUTES_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+ }
+
+ h = CreateFileW((subvolpath + pathu).c_str(), FILE_WRITE_DATA | FILE_WRITE_ATTRIBUTES, 0, NULL, OPEN_EXISTING,
+ FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_POSIX_SEMANTICS, NULL);
+ if (h == INVALID_HANDLE_VALUE) {
+ ShowRecvError(IDS_RECV_CANT_OPEN_FILE, funcname, pathu.c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ lastwritepath = pathu;
+ lastwritefile = h;
+
+ memset(&fbi, 0, sizeof(FILE_BASIC_INFO));
+
+ fbi.LastWriteTime.QuadPart = -1;
+
+ if (!SetFileInformationByHandle(h, FileBasicInfo, &fbi, sizeof(FILE_BASIC_INFO))) {
+ ShowRecvError(IDS_RECV_SETFILEINFO_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+ } else
+ h = lastwritefile;
+
+ offli.QuadPart = *offset;
+
+ if (SetFilePointer(h, offli.LowPart, &offli.HighPart, FILE_BEGIN) == INVALID_SET_FILE_POINTER) {
+ ShowRecvError(IDS_RECV_SETFILEPOINTER_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ if (!WriteFile(h, writedata, datalen, NULL, NULL)) {
+ ShowRecvError(IDS_RECV_WRITEFILE_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+BOOL BtrfsRecv::cmd_clone(HWND hwnd, btrfs_send_command* cmd, UINT8* data) {
+ char *path, *clonepath;
+ UINT64 *offset, *cloneoffset, *clonetransid, *clonelen;
+ BTRFS_UUID* cloneuuid;
+ ULONG i, offsetlen, pathlen, clonepathlen, cloneoffsetlen, cloneuuidlen, clonetransidlen, clonelenlen;
+ std::wstring pathu, clonepathu, clonepar;
+ btrfs_find_subvol bfs;
+ NTSTATUS Status;
+ IO_STATUS_BLOCK iosb;
+ WCHAR cloneparw[MAX_PATH];
+ HANDLE src, dest;
+ DUPLICATE_EXTENTS_DATA ded;
+ LARGE_INTEGER filesize;
+ BOOL found = FALSE;
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_OFFSET, (void**)&offset, &offsetlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"offset");
+ return FALSE;
+ }
+
+ if (offsetlen < sizeof(UINT64)) {
+ ShowRecvError(IDS_RECV_SHORT_PARAM, funcname, L"offset", offsetlen, sizeof(UINT64));
+ return FALSE;
+ }
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_CLONE_LENGTH, (void**)&clonelen, &clonelenlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"clone_len");
+ return FALSE;
+ }
+
+ if (clonelenlen < sizeof(UINT64)) {
+ ShowRecvError(IDS_RECV_SHORT_PARAM, funcname, L"clone_len", clonelenlen, sizeof(UINT64));
+ return FALSE;
+ }
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_PATH, (void**)&path, &pathlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"path");
+ return FALSE;
+ }
+
+ if (!utf8_to_utf16(hwnd, path, pathlen, &pathu))
+ return FALSE;
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_CLONE_UUID, (void**)&cloneuuid, &cloneuuidlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"clone_uuid");
+ return FALSE;
+ }
+
+ if (cloneuuidlen < sizeof(BTRFS_UUID)) {
+ ShowRecvError(IDS_RECV_SHORT_PARAM, funcname, L"clone_uuid", cloneuuidlen, sizeof(BTRFS_UUID));
+ return FALSE;
+ }
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_CLONE_CTRANSID, (void**)&clonetransid, &clonetransidlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"clone_ctransid");
+ return FALSE;
+ }
+
+ if (clonetransidlen < sizeof(UINT64)) {
+ ShowRecvError(IDS_RECV_SHORT_PARAM, funcname, L"clone_ctransid", clonetransidlen, sizeof(UINT64));
+ return FALSE;
+ }
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_CLONE_PATH, (void**)&clonepath, &clonepathlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"clone_path");
+ return FALSE;
+ }
+
+ if (!utf8_to_utf16(hwnd, clonepath, clonepathlen, &clonepathu))
+ return FALSE;
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_CLONE_OFFSET, (void**)&cloneoffset, &cloneoffsetlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"clone_offset");
+ return FALSE;
+ }
+
+ if (cloneoffsetlen < sizeof(UINT64)) {
+ ShowRecvError(IDS_RECV_SHORT_PARAM, funcname, L"clone_offset", cloneoffsetlen, sizeof(UINT64));
+ return FALSE;
+ }
+
+ for (i = 0; i < cache.size(); i++) {
+ if (!memcmp(cloneuuid, &cache[i].uuid, sizeof(BTRFS_UUID)) && *clonetransid == cache[i].transid) {
+ clonepar = cache[i].path;
+ found = TRUE;
+ break;
+ }
+ }
+
+ if (!found) {
+ WCHAR volpathw[MAX_PATH];
+
+ bfs.uuid = *cloneuuid;
+ bfs.ctransid = *clonetransid;
+
+ Status = NtFsControlFile(dir, NULL, NULL, NULL, &iosb, FSCTL_BTRFS_FIND_SUBVOL, &bfs, sizeof(btrfs_find_subvol),
+ cloneparw, sizeof(cloneparw));
+ if (Status == STATUS_NOT_FOUND) {
+ ShowRecvError(IDS_RECV_CANT_FIND_CLONE_SUBVOL);
+ return FALSE;
+ } else if (!NT_SUCCESS(Status)) {
+ ShowRecvError(IDS_RECV_FIND_SUBVOL_FAILED, Status, format_ntstatus(Status).c_str());
+ return FALSE;
+ }
+
+ if (!GetVolumePathNameW(dirpath.c_str(), volpathw, (sizeof(volpathw) / sizeof(WCHAR)) - 1)) {
+ ShowRecvError(IDS_RECV_GETVOLUMEPATHNAME_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ clonepar = volpathw;
+ if (clonepar.substr(clonepar.length() - 1) == L"\\")
+ clonepar = clonepar.substr(0, clonepar.length() - 1);
+
+ clonepar += cloneparw;
+ clonepar += L"\\";
+
+ add_cache_entry(cloneuuid, *clonetransid, clonepar);
+ }
+
+ src = CreateFileW((clonepar + clonepathu).c_str(), FILE_READ_DATA, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
+ NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_OPEN_REPARSE_POINT | FILE_FLAG_POSIX_SEMANTICS, NULL);
+ if (src == INVALID_HANDLE_VALUE) {
+ ShowRecvError(IDS_RECV_CANT_OPEN_FILE, funcname, (clonepar + clonepathu).c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ dest = CreateFileW((subvolpath + pathu).c_str(), FILE_WRITE_DATA, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
+ NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_OPEN_REPARSE_POINT | FILE_FLAG_POSIX_SEMANTICS, NULL);
+ if (dest == INVALID_HANDLE_VALUE) {
+ ShowRecvError(IDS_RECV_CANT_OPEN_FILE, funcname, pathu.c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ CloseHandle(src);
+ return FALSE;
+ }
+
+ if (!GetFileSizeEx(dest, &filesize)) {
+ ShowRecvError(IDS_RECV_GETFILESIZEEX_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ CloseHandle(dest);
+ CloseHandle(src);
+ return FALSE;
+ }
+
+ if ((UINT64)filesize.QuadPart < *offset + *clonelen) {
+ LARGE_INTEGER sizeli;
+
+ sizeli.QuadPart = *offset + *clonelen;
+
+ if (SetFilePointer(dest, sizeli.LowPart, &sizeli.HighPart, FILE_BEGIN) == INVALID_SET_FILE_POINTER) {
+ ShowRecvError(IDS_RECV_SETFILEPOINTER_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ CloseHandle(dest);
+ CloseHandle(src);
+ return FALSE;
+ }
+
+ if (!SetEndOfFile(dest)) {
+ ShowRecvError(IDS_RECV_SETENDOFFILE_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ CloseHandle(dest);
+ CloseHandle(src);
+ return FALSE;
+ }
+ }
+
+ ded.FileHandle = src;
+ ded.SourceFileOffset.QuadPart = *cloneoffset;
+ ded.TargetFileOffset.QuadPart = *offset;
+ ded.ByteCount.QuadPart = *clonelen;
+
+ Status = NtFsControlFile(dest, NULL, NULL, NULL, &iosb, FSCTL_DUPLICATE_EXTENTS_TO_FILE, &ded, sizeof(DUPLICATE_EXTENTS_DATA),
+ NULL, 0);
+ if (!NT_SUCCESS(Status)) {
+ ShowRecvError(IDS_RECV_DUPLICATE_EXTENTS_FAILED, Status, format_ntstatus(Status).c_str());
+ CloseHandle(dest);
+ CloseHandle(src);
+ return FALSE;
+ }
+
+ CloseHandle(dest);
+ CloseHandle(src);
+
+ return TRUE;
+}
+
+BOOL BtrfsRecv::cmd_truncate(HWND hwnd, btrfs_send_command* cmd, UINT8* data) {
+ char* path;
+ UINT64* size;
+ ULONG pathlen, sizelen;
+ std::wstring pathu;
+ HANDLE h;
+ LARGE_INTEGER sizeli;
+ DWORD att;
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_PATH, (void**)&path, &pathlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"path");
+ return FALSE;
+ }
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_SIZE, (void**)&size, &sizelen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"size");
+ return FALSE;
+ }
+
+ if (sizelen < sizeof(UINT64)) {
+ ShowRecvError(IDS_RECV_SHORT_PARAM, funcname, L"size", sizelen, sizeof(UINT64));
+ return FALSE;
+ }
+
+ if (!utf8_to_utf16(hwnd, path, pathlen, &pathu))
+ return FALSE;
+
+ att = GetFileAttributesW((subvolpath + pathu).c_str());
+ if (att == INVALID_FILE_ATTRIBUTES) {
+ ShowRecvError(IDS_RECV_GETFILEATTRIBUTES_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ if (att & FILE_ATTRIBUTE_READONLY) {
+ if (!SetFileAttributesW((subvolpath + pathu).c_str(), att & ~FILE_ATTRIBUTE_READONLY)) {
+ ShowRecvError(IDS_RECV_SETFILEATTRIBUTES_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+ }
+
+ h = CreateFileW((subvolpath + pathu).c_str(), FILE_WRITE_DATA, 0, NULL, OPEN_EXISTING,
+ FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_POSIX_SEMANTICS, NULL);
+ if (h == INVALID_HANDLE_VALUE) {
+ ShowRecvError(IDS_RECV_CANT_OPEN_FILE, funcname, pathu.c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ sizeli.QuadPart = *size;
+
+ if (SetFilePointer(h, sizeli.LowPart, &sizeli.HighPart, FILE_BEGIN) == INVALID_SET_FILE_POINTER) {
+ ShowRecvError(IDS_RECV_SETFILEPOINTER_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ CloseHandle(h);
+ return FALSE;
+ }
+
+ if (!SetEndOfFile(h)) {
+ ShowRecvError(IDS_RECV_SETENDOFFILE_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ CloseHandle(h);
+ return FALSE;
+ }
+
+ CloseHandle(h);
+
+ if (att & FILE_ATTRIBUTE_READONLY) {
+ if (!SetFileAttributesW((subvolpath + pathu).c_str(), att)) {
+ ShowRecvError(IDS_RECV_SETFILEATTRIBUTES_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+}
+
+BOOL BtrfsRecv::cmd_chmod(HWND hwnd, btrfs_send_command* cmd, UINT8* data) {
+ HANDLE h;
+ char* path;
+ UINT32* mode;
+ ULONG pathlen, modelen;
+ std::wstring pathu;
+ btrfs_set_inode_info bsii;
+ NTSTATUS Status;
+ IO_STATUS_BLOCK iosb;
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_PATH, (void**)&path, &pathlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"path");
+ return FALSE;
+ }
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_MODE, (void**)&mode, &modelen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"mode");
+ return FALSE;
+ }
+
+ if (modelen < sizeof(UINT32)) {
+ ShowRecvError(IDS_RECV_SHORT_PARAM, funcname, L"mode", modelen, sizeof(UINT32));
+ return FALSE;
+ }
+
+ if (!utf8_to_utf16(hwnd, path, pathlen, &pathu))
+ return FALSE;
+
+ h = CreateFileW((subvolpath + pathu).c_str(), WRITE_DAC, 0, NULL, OPEN_EXISTING,
+ FILE_FLAG_BACKUP_SEMANTICS | FILE_OPEN_REPARSE_POINT | FILE_FLAG_POSIX_SEMANTICS, NULL);
+ if (h == INVALID_HANDLE_VALUE) {
+ ShowRecvError(IDS_RECV_CANT_OPEN_FILE, funcname, pathu.c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ memset(&bsii, 0, sizeof(btrfs_set_inode_info));
+
+ bsii.mode_changed = TRUE;
+ bsii.st_mode = *mode;
+
+ Status = NtFsControlFile(h, NULL, NULL, NULL, &iosb, FSCTL_BTRFS_SET_INODE_INFO, &bsii, sizeof(btrfs_set_inode_info), NULL, 0);
+ if (!NT_SUCCESS(Status)) {
+ ShowRecvError(IDS_RECV_SETINODEINFO_FAILED, Status, format_ntstatus(Status).c_str());
+ CloseHandle(h);
+ return FALSE;
+ }
+
+ CloseHandle(h);
+
+ return TRUE;
+}
+
+BOOL BtrfsRecv::cmd_chown(HWND hwnd, btrfs_send_command* cmd, UINT8* data) {
+ HANDLE h;
+ char* path;
+ UINT32 *uid, *gid;
+ ULONG pathlen, uidlen, gidlen;
+ std::wstring pathu;
+ btrfs_set_inode_info bsii;
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_PATH, (void**)&path, &pathlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"path");
+ return FALSE;
+ }
+
+ if (!utf8_to_utf16(hwnd, path, pathlen, &pathu))
+ return FALSE;
+
+ h = CreateFileW((subvolpath + pathu).c_str(), FILE_WRITE_ATTRIBUTES | WRITE_OWNER | WRITE_DAC, 0, NULL, OPEN_EXISTING,
+ FILE_FLAG_BACKUP_SEMANTICS | FILE_OPEN_REPARSE_POINT | FILE_FLAG_POSIX_SEMANTICS, NULL);
+ if (h == INVALID_HANDLE_VALUE) {
+ ShowRecvError(IDS_RECV_CANT_OPEN_FILE, funcname, pathu.c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ memset(&bsii, 0, sizeof(btrfs_set_inode_info));
+
+ if (find_tlv(data, cmd->length, BTRFS_SEND_TLV_UID, (void**)&uid, &uidlen)) {
+ if (uidlen < sizeof(UINT32)) {
+ ShowRecvError(IDS_RECV_SHORT_PARAM, funcname, L"uid", uidlen, sizeof(UINT32));
+ CloseHandle(h);
+ return FALSE;
+ }
+
+ bsii.uid_changed = TRUE;
+ bsii.st_uid = *uid;
+ }
+
+ if (find_tlv(data, cmd->length, BTRFS_SEND_TLV_GID, (void**)&gid, &gidlen)) {
+ if (gidlen < sizeof(UINT32)) {
+ ShowRecvError(IDS_RECV_SHORT_PARAM, funcname, L"gid", gidlen, sizeof(UINT32));
+ CloseHandle(h);
+ return FALSE;
+ }
+
+ bsii.gid_changed = TRUE;
+ bsii.st_gid = *gid;
+ }
+
+ if (bsii.uid_changed || bsii.gid_changed) {
+ NTSTATUS Status;
+ IO_STATUS_BLOCK iosb;
+
+ Status = NtFsControlFile(h, NULL, NULL, NULL, &iosb, FSCTL_BTRFS_SET_INODE_INFO, &bsii, sizeof(btrfs_set_inode_info), NULL, 0);
+ if (!NT_SUCCESS(Status)) {
+ ShowRecvError(IDS_RECV_SETINODEINFO_FAILED, Status, format_ntstatus(Status).c_str());
+ CloseHandle(h);
+ return FALSE;
+ }
+ }
+
+ CloseHandle(h);
+
+ return TRUE;
+}
+
+static __inline UINT64 unix_time_to_win(BTRFS_TIME* t) {
+ return (t->seconds * 10000000) + (t->nanoseconds / 100) + 116444736000000000;
+}
+
+BOOL BtrfsRecv::cmd_utimes(HWND hwnd, btrfs_send_command* cmd, UINT8* data) {
+ char* path;
+ ULONG pathlen;
+ std::wstring pathu;
+ HANDLE h;
+ FILE_BASIC_INFO fbi;
+ BTRFS_TIME* time;
+ ULONG timelen;
+
+ if (!find_tlv(data, cmd->length, BTRFS_SEND_TLV_PATH, (void**)&path, &pathlen)) {
+ ShowRecvError(IDS_RECV_MISSING_PARAM, funcname, L"path");
+ return FALSE;
+ }
+
+ if (!utf8_to_utf16(hwnd, path, pathlen, &pathu))
+ return FALSE;
+
+ h = CreateFileW((subvolpath + pathu).c_str(), FILE_WRITE_ATTRIBUTES, 0, NULL, OPEN_EXISTING,
+ FILE_FLAG_BACKUP_SEMANTICS | FILE_OPEN_REPARSE_POINT | FILE_FLAG_POSIX_SEMANTICS, NULL);
+ if (h == INVALID_HANDLE_VALUE) {
+ ShowRecvError(IDS_RECV_CANT_OPEN_FILE, funcname, pathu.c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ memset(&fbi, 0, sizeof(FILE_BASIC_INFO));
+
+ if (find_tlv(data, cmd->length, BTRFS_SEND_TLV_OTIME, (void**)&time, &timelen) && timelen >= sizeof(BTRFS_TIME))
+ fbi.CreationTime.QuadPart = unix_time_to_win(time);
+
+ if (find_tlv(data, cmd->length, BTRFS_SEND_TLV_ATIME, (void**)&time, &timelen) && timelen >= sizeof(BTRFS_TIME))
+ fbi.LastAccessTime.QuadPart = unix_time_to_win(time);
+
+ if (find_tlv(data, cmd->length, BTRFS_SEND_TLV_MTIME, (void**)&time, &timelen) && timelen >= sizeof(BTRFS_TIME))
+ fbi.LastWriteTime.QuadPart = unix_time_to_win(time);
+
+ if (find_tlv(data, cmd->length, BTRFS_SEND_TLV_CTIME, (void**)&time, &timelen) && timelen >= sizeof(BTRFS_TIME))
+ fbi.ChangeTime.QuadPart = unix_time_to_win(time);
+
+ if (!SetFileInformationByHandle(h, FileBasicInfo, &fbi, sizeof(FILE_BASIC_INFO))) {
+ ShowRecvError(IDS_RECV_SETFILEINFO_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ CloseHandle(h);
+ return FALSE;
+ }
+
+ CloseHandle(h);
+
+ return TRUE;
+}
+
+void BtrfsRecv::ShowRecvError(int resid, ...) {
+ WCHAR s[1024], t[1024];
+ va_list ap;
+
+ if (!hwnd)
+ return;
+
+ if (!LoadStringW(module, resid, s, sizeof(s) / sizeof(WCHAR))) {
+ ShowError(hwnd, GetLastError());
+ return;
+ }
+
+ va_start(ap, resid);
+#ifndef __REACTOS__
+ vswprintf(t, sizeof(t) / sizeof(WCHAR), s, ap);
+#else
+ vsnwprintf(t, sizeof(t) / sizeof(WCHAR), s, ap);
+#endif
+
+ SetDlgItemTextW(hwnd, IDC_RECV_MSG, t);
+
+ va_end(ap);
+
+ SendMessageW(GetDlgItem(hwnd, IDC_RECV_PROGRESS), PBM_SETSTATE, PBST_ERROR, 0);
+}
+
+static void delete_directory(std::wstring dir) {
+ HANDLE h;
+ WIN32_FIND_DATAW fff;
+
+ h = FindFirstFileW((dir + L"*").c_str(), &fff);
+
+ if (h == INVALID_HANDLE_VALUE)
+ return;
+
+ do {
+ std::wstring file;
+
+ file = fff.cFileName;
+
+ if (file != L"." && file != L"..") {
+ if (fff.dwFileAttributes & FILE_ATTRIBUTE_READONLY)
+ SetFileAttributesW((dir + file).c_str(), fff.dwFileAttributes & ~FILE_ATTRIBUTE_READONLY);
+
+ if (fff.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
+ if (!(fff.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT))
+ delete_directory(dir + file + L"\\");
+ else
+ RemoveDirectoryW((dir + file).c_str());
+ } else
+ DeleteFileW((dir + file).c_str());
+ }
+ } while (FindNextFileW(h, &fff));
+
+ FindClose(h);
+
+ RemoveDirectoryW(dir.c_str());
+}
+
+static BOOL check_csum(btrfs_send_command* cmd, UINT8* data) {
+ UINT32 crc32 = cmd->csum, calc;
+
+ cmd->csum = 0;
+
+ calc = calc_crc32c(0, (UINT8*)cmd, sizeof(btrfs_send_command));
+
+ if (cmd->length > 0)
+ calc = calc_crc32c(calc, data, cmd->length);
+
+ return calc == crc32 ? TRUE : FALSE;
+}
+
+BOOL BtrfsRecv::do_recv(HANDLE f, UINT64* pos, UINT64 size) {
+ btrfs_send_header header;
+ BOOL b = TRUE, ended = FALSE;
+
+ if (!ReadFile(f, &header, sizeof(btrfs_send_header), NULL, NULL)) {
+ ShowRecvError(IDS_RECV_READFILE_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+
+ *pos += sizeof(btrfs_send_header);
+
+ if (memcmp(header.magic, BTRFS_SEND_MAGIC, sizeof(header.magic))) {
+ ShowRecvError(IDS_RECV_NOT_A_SEND_STREAM);
+ return FALSE;
+ }
+
+ if (header.version > 1) {
+ ShowRecvError(IDS_RECV_UNSUPPORTED_VERSION, header.version);
+ return FALSE;
+ }
+
+ SendMessageW(GetDlgItem(hwnd, IDC_RECV_PROGRESS), PBM_SETRANGE32, 0, (LPARAM)65536);
+
+ lastwritefile = INVALID_HANDLE_VALUE;
+ lastwritepath = L"";
+ lastwriteatt = 0;
+
+ while (TRUE) {
+ btrfs_send_command cmd;
+ UINT8* data;
+ ULONG progress;
+
+ if (cancelling) {
+ b = FALSE;
+ break;
+ }
+
+ progress = (ULONG)((float)*pos * 65536.0f / (float)size);
+ SendMessageW(GetDlgItem(hwnd, IDC_RECV_PROGRESS), PBM_SETPOS, progress, 0);
+
+ if (!ReadFile(f, &cmd, sizeof(btrfs_send_command), NULL, NULL)) {
+ if (GetLastError() != ERROR_HANDLE_EOF) {
+ ShowRecvError(IDS_RECV_READFILE_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ break;
+ }
+
+ break;
+ }
+
+ *pos += sizeof(btrfs_send_command);
+
+ if (cmd.length > 0) {
+ if (*pos + cmd.length > size) {
+ ShowRecvError(IDS_RECV_FILE_TRUNCATED);
+ b = FALSE;
+ break;
+ }
+
+ data = (UINT8*)malloc(cmd.length);
+ if (!data) {
+ ShowRecvError(IDS_OUT_OF_MEMORY);
+ b = FALSE;
+ break;
+ }
+
+ if (!ReadFile(f, data, cmd.length, NULL, NULL)) {
+ ShowRecvError(IDS_RECV_READFILE_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ b = FALSE;
+ break;
+ }
+
+ *pos += cmd.length;
+ } else
+ data = NULL;
+
+ if (!check_csum(&cmd, data)) {
+ ShowRecvError(IDS_RECV_CSUM_ERROR);
+ if (data) free(data);
+ b = FALSE;
+ break;
+ }
+
+ if (cmd.cmd == BTRFS_SEND_CMD_END) {
+ if (data) free(data);
+ ended = TRUE;
+ break;
+ }
+
+ if (lastwritefile != INVALID_HANDLE_VALUE && cmd.cmd != BTRFS_SEND_CMD_WRITE) {
+ if (lastwriteatt & FILE_ATTRIBUTE_READONLY) {
+ if (!SetFileAttributesW((subvolpath + lastwritepath).c_str(), lastwriteatt)) {
+ ShowRecvError(IDS_RECV_SETFILEATTRIBUTES_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+ }
+
+ CloseHandle(lastwritefile);
+
+ lastwritefile = INVALID_HANDLE_VALUE;
+ lastwritepath = L"";
+ lastwriteatt = 0;
+ }
+
+ switch (cmd.cmd) {
+ case BTRFS_SEND_CMD_SUBVOL:
+ b = cmd_subvol(hwnd, &cmd, data);
+ break;
+
+ case BTRFS_SEND_CMD_SNAPSHOT:
+ b = cmd_snapshot(hwnd, &cmd, data);
+ break;
+
+ case BTRFS_SEND_CMD_MKFILE:
+ case BTRFS_SEND_CMD_MKDIR:
+ case BTRFS_SEND_CMD_MKNOD:
+ case BTRFS_SEND_CMD_MKFIFO:
+ case BTRFS_SEND_CMD_MKSOCK:
+ case BTRFS_SEND_CMD_SYMLINK:
+ b = cmd_mkfile(hwnd, &cmd, data);
+ break;
+
+ case BTRFS_SEND_CMD_RENAME:
+ b = cmd_rename(hwnd, &cmd, data);
+ break;
+
+ case BTRFS_SEND_CMD_LINK:
+ b = cmd_link(hwnd, &cmd, data);
+ break;
+
+ case BTRFS_SEND_CMD_UNLINK:
+ b = cmd_unlink(hwnd, &cmd, data);
+ break;
+
+ case BTRFS_SEND_CMD_RMDIR:
+ b = cmd_rmdir(hwnd, &cmd, data);
+ break;
+
+ case BTRFS_SEND_CMD_SET_XATTR:
+ b = cmd_setxattr(hwnd, &cmd, data);
+ break;
+
+ case BTRFS_SEND_CMD_REMOVE_XATTR:
+ b = cmd_removexattr(hwnd, &cmd, data);
+ break;
+
+ case BTRFS_SEND_CMD_WRITE:
+ b = cmd_write(hwnd, &cmd, data);
+ break;
+
+ case BTRFS_SEND_CMD_CLONE:
+ b = cmd_clone(hwnd, &cmd, data);
+ break;
+
+ case BTRFS_SEND_CMD_TRUNCATE:
+ b = cmd_truncate(hwnd, &cmd, data);
+ break;
+
+ case BTRFS_SEND_CMD_CHMOD:
+ b = cmd_chmod(hwnd, &cmd, data);
+ break;
+
+ case BTRFS_SEND_CMD_CHOWN:
+ b = cmd_chown(hwnd, &cmd, data);
+ break;
+
+ case BTRFS_SEND_CMD_UTIMES:
+ b = cmd_utimes(hwnd, &cmd, data);
+ break;
+
+ case BTRFS_SEND_CMD_UPDATE_EXTENT:
+ // does nothing
+ break;
+
+ default:
+ ShowRecvError(IDS_RECV_UNKNOWN_COMMAND, cmd.cmd);
+ b = FALSE;
+ break;
+ }
+
+ if (data) free(data);
+
+ if (!b)
+ break;
+ }
+
+ if (lastwritefile != INVALID_HANDLE_VALUE) {
+ if (lastwriteatt & FILE_ATTRIBUTE_READONLY) {
+ if (!SetFileAttributesW((subvolpath + lastwritepath).c_str(), lastwriteatt)) {
+ ShowRecvError(IDS_RECV_SETFILEATTRIBUTES_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ return FALSE;
+ }
+ }
+
+ CloseHandle(lastwritefile);
+ }
+
+ if (b && !ended) {
+ ShowRecvError(IDS_RECV_FILE_TRUNCATED);
+ b = FALSE;
+ }
+
+ if (b) {
+ NTSTATUS Status;
+ IO_STATUS_BLOCK iosb;
+ btrfs_received_subvol brs;
+
+ brs.generation = stransid;
+ brs.uuid = subvol_uuid;
+
+ Status = NtFsControlFile(dir, NULL, NULL, NULL, &iosb, FSCTL_BTRFS_RECEIVED_SUBVOL, &brs, sizeof(btrfs_received_subvol),
+ NULL, 0);
+ if (!NT_SUCCESS(Status)) {
+ ShowRecvError(IDS_RECV_RECEIVED_SUBVOL_FAILED, Status, format_ntstatus(Status).c_str());
+ b = FALSE;
+ }
+ }
+
+ CloseHandle(dir);
+
+ if (master != INVALID_HANDLE_VALUE)
+ CloseHandle(master);
+
+ if (!b && subvolpath != L"") {
+ ULONG attrib;
+
+ attrib = GetFileAttributesW(subvolpath.c_str());
+ attrib &= ~FILE_ATTRIBUTE_READONLY;
+
+ if (!SetFileAttributesW(subvolpath.c_str(), attrib))
+ ShowRecvError(IDS_RECV_SETFILEATTRIBUTES_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ else
+ delete_directory(subvolpath);
+ }
+
+ return b;
+}
+
+DWORD BtrfsRecv::recv_thread() {
+ HANDLE f;
+ LARGE_INTEGER size;
+ UINT64 pos = 0;
+ BOOL b;
+
+ running = TRUE;
+
+ f = CreateFileW(streamfile.c_str(), GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL);
+ if (f == INVALID_HANDLE_VALUE) {
+ ShowRecvError(IDS_RECV_CANT_OPEN_FILE, funcname, streamfile.c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ goto end;
+ }
+
+ if (!GetFileSizeEx(f, &size)) {
+ ShowRecvError(IDS_RECV_GETFILESIZEEX_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ goto end;
+ }
+
+ parent = CreateFileW(dirpath.c_str(), FILE_ADD_SUBDIRECTORY | FILE_ADD_FILE, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
+ NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_POSIX_SEMANTICS, NULL);
+ if (parent == INVALID_HANDLE_VALUE) {
+ ShowRecvError(IDS_RECV_CANT_OPEN_PATH, dirpath.c_str(), GetLastError(), format_message(GetLastError()).c_str());
+ CloseHandle(f);
+ goto end;
+ }
+
+ do {
+ b = do_recv(f, &pos, size.QuadPart);
+ } while (b && pos < (UINT64)size.QuadPart);
+
+ CloseHandle(parent);
+ CloseHandle(f);
+
+ if (b && hwnd) {
+ WCHAR s[255];
+
+ SendMessageW(GetDlgItem(hwnd, IDC_RECV_PROGRESS), PBM_SETPOS, 65536, 0);
+
+ if (num_received == 1) {
+ if (!LoadStringW(module, IDS_RECV_SUCCESS, s, sizeof(s) / sizeof(WCHAR)))
+ ShowError(hwnd, GetLastError());
+ else
+ SetDlgItemTextW(hwnd, IDC_RECV_MSG, s);
+ } else {
+ if (!LoadStringW(module, IDS_RECV_SUCCESS_PLURAL, s, sizeof(s) / sizeof(WCHAR)))
+ ShowError(hwnd, GetLastError());
+ else {
+ WCHAR t[255];
+
+ if (StringCchPrintfW(t, sizeof(t) / sizeof(WCHAR), s, num_received) == STRSAFE_E_INSUFFICIENT_BUFFER)
+ ShowError(hwnd, ERROR_INSUFFICIENT_BUFFER);
+ else
+ SetDlgItemTextW(hwnd, IDC_RECV_MSG, t);
+ }
+ }
+
+ if (!LoadStringW(module, IDS_RECV_BUTTON_OK, s, sizeof(s) / sizeof(WCHAR)))
+ ShowError(hwnd, GetLastError());
+ else
+ SetDlgItemTextW(hwnd, IDCANCEL, s);
+ }
+
+end:
+ thread = NULL;
+ running = FALSE;
+
+ return 0;
+}
+
+static DWORD WINAPI global_recv_thread(LPVOID lpParameter) {
+ BtrfsRecv* br = (BtrfsRecv*)lpParameter;
+
+ return br->recv_thread();
+}
+
+INT_PTR CALLBACK BtrfsRecv::RecvProgressDlgProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam) {
+ switch (uMsg) {
+ case WM_INITDIALOG:
+ this->hwnd = hwndDlg;
+ thread = CreateThread(NULL, 0, global_recv_thread, this, 0, NULL);
+
+ if (!thread)
+ ShowRecvError(IDS_RECV_CREATETHREAD_FAILED, GetLastError(), format_message(GetLastError()).c_str());
+ break;
+
+ case WM_COMMAND:
+ switch (HIWORD(wParam)) {
+ case BN_CLICKED:
+ switch (LOWORD(wParam)) {
+ case IDOK:
+ case IDCANCEL:
+ if (running) {
+ WCHAR s[255];
+
+ cancelling = TRUE;
+
+ if (!LoadStringW(module, IDS_RECV_CANCELLED, s, sizeof(s) / sizeof(WCHAR))) {
+ ShowError(hwndDlg, GetLastError());
+ return FALSE;
+ }
+
+ SetDlgItemTextW(hwnd, IDC_RECV_MSG, s);
+ SendMessageW(GetDlgItem(hwnd, IDC_RECV_PROGRESS), PBM_SETPOS, 0, 0);
+
+ if (!LoadStringW(module, IDS_RECV_BUTTON_OK, s, sizeof(s) / sizeof(WCHAR))) {
+ ShowError(hwndDlg, GetLastError());
+ return FALSE;
+ }
+
+ SetDlgItemTextW(hwnd, IDCANCEL, s);
+ } else
+ EndDialog(hwndDlg, 1);
+
+ return TRUE;
+ }
+ break;
+ }
+ break;
+ }
+
+ return FALSE;
+}
+
+static INT_PTR CALLBACK stub_RecvProgressDlgProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam) {
+ BtrfsRecv* br;
+
+ if (uMsg == WM_INITDIALOG) {
+ SetWindowLongPtr(hwndDlg, GWLP_USERDATA, (LONG_PTR)lParam);
+ br = (BtrfsRecv*)lParam;
+ } else {
+ br = (BtrfsRecv*)GetWindowLongPtr(hwndDlg, GWLP_USERDATA);
+ }
+
+ if (br)
+ return br->RecvProgressDlgProc(hwndDlg, uMsg, wParam, lParam);
+ else
+ return FALSE;
+}
+
+void BtrfsRecv::Open(HWND hwnd, WCHAR* file, WCHAR* path, BOOL quiet) {
+#ifndef __REACTOS__
+ UINT32 cpuInfo[4];
+#endif
+
+ streamfile = file;
+ dirpath = path;
+ subvolpath = L"";
+
+#ifndef __REACTOS__
+#ifndef _MSC_VER
+ __get_cpuid(1, &cpuInfo[0], &cpuInfo[1], &cpuInfo[2], &cpuInfo[3]);
+ have_sse42 = cpuInfo[2] & bit_SSE4_2;
+#else
+ __cpuid((int*)cpuInfo, 1);
+ have_sse42 = cpuInfo[2] & (1 << 20);
+#endif
+#endif
+
+ if (quiet)
+ recv_thread();
+ else {
+ if (DialogBoxParamW(module, MAKEINTRESOURCEW(IDD_RECV_PROGRESS), hwnd, stub_RecvProgressDlgProc, (LPARAM)this) <= 0)
+ ShowError(hwnd, GetLastError());
+ }
+}
+
+void CALLBACK RecvSubvolGUIW(HWND hwnd, HINSTANCE hinst, LPWSTR lpszCmdLine, int nCmdShow) {
+ OPENFILENAMEW ofn;
+ WCHAR file[MAX_PATH];
+ BtrfsRecv* recv;
+ HANDLE token;
+ TOKEN_PRIVILEGES* tp;
+ LUID luid;
+ ULONG tplen;
+
+ set_dpi_aware();
+
+ if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &token)) {
+ ShowError(hwnd, GetLastError());
+ return;
+ }
+
+ tplen = offsetof(TOKEN_PRIVILEGES, Privileges[0]) + (3 * sizeof(LUID_AND_ATTRIBUTES));
+ tp = (TOKEN_PRIVILEGES*)malloc(tplen);
+ if (!tp) {
+ ShowStringError(hwnd, IDS_OUT_OF_MEMORY);
+ CloseHandle(token);
+ return;
+ }
+
+ tp->PrivilegeCount = 3;
+
+ if (!LookupPrivilegeValueW(NULL, L"SeManageVolumePrivilege", &luid)) {
+ ShowError(hwnd, GetLastError());
+ free(tp);
+ CloseHandle(token);
+ return;
+ }
+
+ tp->Privileges[0].Luid = luid;
+ tp->Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
+
+ if (!LookupPrivilegeValueW(NULL, L"SeSecurityPrivilege", &luid)) {
+ ShowError(hwnd, GetLastError());
+ free(tp);
+ CloseHandle(token);
+ return;
+ }
+
+ tp->Privileges[1].Luid = luid;
+ tp->Privileges[1].Attributes = SE_PRIVILEGE_ENABLED;
+
+ if (!LookupPrivilegeValueW(NULL, L"SeRestorePrivilege", &luid)) {
+ ShowError(hwnd, GetLastError());
+ free(tp);
+ CloseHandle(token);
+ return;
+ }
+
+ tp->Privileges[2].Luid = luid;
+ tp->Privileges[2].Attributes = SE_PRIVILEGE_ENABLED;
+
+ if (!AdjustTokenPrivileges(token, FALSE, tp, tplen, NULL, NULL)) {
+ ShowError(hwnd, GetLastError());
+ free(tp);
+ CloseHandle(token);
+ return;
+ }
+
+ file[0] = 0;
+
+ memset(&ofn, 0, sizeof(OPENFILENAMEW));
+ ofn.lStructSize = sizeof(OPENFILENAMEW);
+ ofn.hwndOwner = hwnd;
+ ofn.hInstance = module;
+ ofn.lpstrFile = file;
+ ofn.nMaxFile = sizeof(file) / sizeof(WCHAR);
+ ofn.Flags = OFN_FILEMUSTEXIST | OFN_HIDEREADONLY;
+
+ if (GetOpenFileNameW(&ofn)) {
+ recv = new BtrfsRecv;
+
+ recv->Open(hwnd, file, lpszCmdLine, FALSE);
+
+ delete recv;
+ }
+
+ free(tp);
+ CloseHandle(token);
+}
+
+void CALLBACK RecvSubvolW(HWND hwnd, HINSTANCE hinst, LPWSTR lpszCmdLine, int nCmdShow) {
+ LPWSTR* args;
+ int num_args;
+
+ args = CommandLineToArgvW(lpszCmdLine, &num_args);
+
+ if (!args)
+ return;
+
+ if (num_args >= 2) {
+ BtrfsRecv* br;
+ HANDLE token;
+ TOKEN_PRIVILEGES* tp;
+ ULONG tplen;
+ LUID luid;
+
+ if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &token))
+ goto end;
+
+ tplen = offsetof(TOKEN_PRIVILEGES, Privileges[0]) + (3 * sizeof(LUID_AND_ATTRIBUTES));
+ tp = (TOKEN_PRIVILEGES*)malloc(tplen);
+ if (!tp) {
+ CloseHandle(token);
+ goto end;
+ }
+
+ tp->PrivilegeCount = 3;
+
+ if (!LookupPrivilegeValueW(NULL, L"SeManageVolumePrivilege", &luid)) {
+ free(tp);
+ CloseHandle(token);
+ goto end;
+ }
+
+ tp->Privileges[0].Luid = luid;
+ tp->Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
+
+ if (!LookupPrivilegeValueW(NULL, L"SeSecurityPrivilege", &luid)) {
+ free(tp);
+ CloseHandle(token);
+ goto end;
+ }
+
+ tp->Privileges[1].Luid = luid;
+ tp->Privileges[1].Attributes = SE_PRIVILEGE_ENABLED;
+
+ if (!LookupPrivilegeValueW(NULL, L"SeRestorePrivilege", &luid)) {
+ free(tp);
+ CloseHandle(token);
+ goto end;
+ }
+
+ tp->Privileges[2].Luid = luid;
+ tp->Privileges[2].Attributes = SE_PRIVILEGE_ENABLED;
+
+ if (!AdjustTokenPrivileges(token, FALSE, tp, tplen, NULL, NULL)) {
+ free(tp);
+ CloseHandle(token);
+ goto end;
+ }
+
+ free(tp);
+ CloseHandle(token);
+
+ br = new BtrfsRecv;
+ br->Open(NULL, args[0], args[1], TRUE);
+
+ delete br;
+ }
+
+end:
+ LocalFree(args);
+}