void smb2srv_create_recv(struct smb2srv_request *req)
{
union smb_open *io;
DATA_BLOB blob;
SMB2SRV_CHECK_BODY_SIZE(req, 0x38, True);
SMB2SRV_TALLOC_IO_PTR(io, union smb_open);
SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_create_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
io->smb2.level = RAW_OPEN_SMB2;
io->smb2.in.oplock_flags = SVAL(req->in.body, 0x02);
io->smb2.in.impersonation = IVAL(req->in.body, 0x04);
io->smb2.in.unknown3[0] = IVAL(req->in.body, 0x08);
io->smb2.in.unknown3[1] = IVAL(req->in.body, 0x0C);
io->smb2.in.unknown3[2] = IVAL(req->in.body, 0x10);
io->smb2.in.unknown3[3] = IVAL(req->in.body, 0x14);
io->smb2.in.access_mask = IVAL(req->in.body, 0x18);
io->smb2.in.file_attr = IVAL(req->in.body, 0x1C);
io->smb2.in.share_access = IVAL(req->in.body, 0x20);
io->smb2.in.open_disposition = IVAL(req->in.body, 0x24);
io->smb2.in.create_options = IVAL(req->in.body, 0x28);
SMB2SRV_CHECK(smb2_pull_o16s16_string(&req->in, io, req->in.body+0x2C, &io->smb2.in.fname));
SMB2SRV_CHECK(smb2_pull_o32s32_blob(&req->in, io, req->in.body+0x30, &blob));
/* TODO: parse the blob */
ZERO_STRUCT(io->smb2.in.eas);
SMB2SRV_CALL_NTVFS_BACKEND(ntvfs_open(req->ntvfs, io));
}
void smb2srv_ioctl_recv(struct smb2srv_request *req)
{
union smb_ioctl *io;
struct smb2_handle h;
SMB2SRV_CHECK_BODY_SIZE(req, 0x38, True);
SMB2SRV_TALLOC_IO_PTR(io, union smb_ioctl);
SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_ioctl_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
/* TODO: avoid the memcpy */
io->smb2.in._pad = SVAL(req->in.body, 0x02);
io->smb2.in.function = IVAL(req->in.body, 0x04);
/* file handle ... */
SMB2SRV_CHECK(smb2_pull_o32s32_blob(&req->in, io, req->in.body+0x18, &io->smb2.in.out));
io->smb2.in.unknown2 = IVAL(req->in.body, 0x20);
SMB2SRV_CHECK(smb2_pull_o32s32_blob(&req->in, io, req->in.body+0x24, &io->smb2.in.in));
io->smb2.in.max_response_size = IVAL(req->in.body, 0x2C);
io->smb2.in.flags = BVAL(req->in.body, 0x30);
smb2_pull_handle(req->in.body + 0x08, &h);
if (h.data[0] == UINT64_MAX && h.data[1] == UINT64_MAX) {
io->smb2.level = RAW_IOCTL_SMB2_NO_HANDLE;
} else {
io->smb2.level = RAW_IOCTL_SMB2;
io->smb2.in.file.ntvfs = smb2srv_pull_handle(req, req->in.body, 0x08);
SMB2SRV_CHECK_FILE_HANDLE(io->smb2.in.file.ntvfs);
}
SMB2SRV_CALL_NTVFS_BACKEND(ntvfs_ioctl(req->ntvfs, io));
}
void smb2srv_lock_recv(struct smb2srv_request *req)
{
union smb_lock *io;
int i;
SMB2SRV_CHECK_BODY_SIZE(req, 0x30, false);
SMB2SRV_TALLOC_IO_PTR(io, union smb_lock);
SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_lock_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
io->smb2.level = RAW_LOCK_SMB2;
io->smb2.in.lock_count = SVAL(req->in.body, 0x02);
io->smb2.in.reserved = IVAL(req->in.body, 0x04);
io->smb2.in.file.ntvfs = smb2srv_pull_handle(req, req->in.body, 0x08);
if (req->in.body_size < 24 + 24*(uint64_t)io->smb2.in.lock_count) {
DEBUG(0,("%s: lock buffer too small\n", __location__));
smb2srv_send_error(req, NT_STATUS_FOOBAR);
return;
}
io->smb2.in.locks = talloc_array(io, struct smb2_lock_element,
io->smb2.in.lock_count);
if (io->smb2.in.locks == NULL) {
smb2srv_send_error(req, NT_STATUS_NO_MEMORY);
return;
}
for (i=0;i<io->smb2.in.lock_count;i++) {
io->smb2.in.locks[i].offset = BVAL(req->in.body, 24 + i*24);
io->smb2.in.locks[i].length = BVAL(req->in.body, 32 + i*24);
io->smb2.in.locks[i].flags = IVAL(req->in.body, 40 + i*24);
io->smb2.in.locks[i].reserved = IVAL(req->in.body, 44 + i*24);
}
SMB2SRV_CHECK_FILE_HANDLE(io->smb2.in.file.ntvfs);
SMB2SRV_CALL_NTVFS_BACKEND(ntvfs_lock(req->ntvfs, io));
}
void smb2srv_read_recv(struct smb2srv_request *req)
{
union smb_read *io;
SMB2SRV_CHECK_BODY_SIZE(req, 0x30, True);
SMB2SRV_TALLOC_IO_PTR(io, union smb_read);
SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_read_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
io->smb2.level = RAW_READ_SMB2;
io->smb2.in._pad = SVAL(req->in.body, 0x02);
io->smb2.in.length = IVAL(req->in.body, 0x04);
io->smb2.in.offset = BVAL(req->in.body, 0x08);
io->smb2.in.file.ntvfs = smb2srv_pull_handle(req, req->in.body, 0x10);
io->smb2.in.unknown1 = BVAL(req->in.body, 0x20);
io->smb2.in.unknown2 = BVAL(req->in.body, 0x28);
SMB2SRV_CHECK_FILE_HANDLE(io->smb2.in.file.ntvfs);
/* preallocate the buffer for the backends */
io->smb2.out.data = data_blob_talloc(io, NULL, io->smb2.in.length);
if (io->smb2.out.data.length != io->smb2.in.length) {
SMB2SRV_CHECK(NT_STATUS_NO_MEMORY);
}
SMB2SRV_CALL_NTVFS_BACKEND(ntvfs_read(req->ntvfs, io));
}
void smb2srv_read_recv(struct smb2srv_request *req)
{
union smb_read *io;
SMB2SRV_CHECK_BODY_SIZE(req, 0x30, true);
/* MS-SMB2 2.2.19 read must have a single byte of zero */
if (req->in.body_size - req->in.body_fixed < 1) {
smb2srv_send_error(req, NT_STATUS_INVALID_PARAMETER);
return;
}
SMB2SRV_TALLOC_IO_PTR(io, union smb_read);
SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_read_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
io->smb2.level = RAW_READ_SMB2;
io->smb2.in._pad = SVAL(req->in.body, 0x02);
io->smb2.in.length = IVAL(req->in.body, 0x04);
io->smb2.in.offset = BVAL(req->in.body, 0x08);
io->smb2.in.file.ntvfs = smb2srv_pull_handle(req, req->in.body, 0x10);
io->smb2.in.min_count = IVAL(req->in.body, 0x20);
io->smb2.in.channel = IVAL(req->in.body, 0x24);
io->smb2.in.remaining = IVAL(req->in.body, 0x28);
io->smb2.in.channel_offset = SVAL(req->in.body, 0x2C);
io->smb2.in.channel_length = SVAL(req->in.body, 0x2E);
SMB2SRV_CHECK_FILE_HANDLE(io->smb2.in.file.ntvfs);
/* preallocate the buffer for the backends */
io->smb2.out.data = data_blob_talloc(io, NULL, io->smb2.in.length);
if (io->smb2.out.data.length != io->smb2.in.length) {
SMB2SRV_CHECK(NT_STATUS_NO_MEMORY);
}
SMB2SRV_CALL_NTVFS_BACKEND(ntvfs_read(req->ntvfs, io));
}
void smb2srv_close_recv(struct smb2srv_request *req)
{
union smb_close *io;
SMB2SRV_CHECK_BODY_SIZE(req, 0x18, False);
SMB2SRV_TALLOC_IO_PTR(io, union smb_close);
SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_close_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
io->smb2.level = RAW_CLOSE_SMB2;
io->smb2.in.flags = SVAL(req->in.body, 0x02);
io->smb2.in._pad = IVAL(req->in.body, 0x04);
io->smb2.in.file.ntvfs = smb2srv_pull_handle(req, req->in.body, 0x08);
SMB2SRV_CHECK_FILE_HANDLE(io->smb2.in.file.ntvfs);
SMB2SRV_CALL_NTVFS_BACKEND(ntvfs_close(req->ntvfs, io));
}
void smb2srv_flush_recv(struct smb2srv_request *req)
{
union smb_flush *io;
SMB2SRV_CHECK_BODY_SIZE(req, 0x18, false);
SMB2SRV_TALLOC_IO_PTR(io, union smb_flush);
SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_flush_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
io->smb2.level = RAW_FLUSH_SMB2;
io->smb2.in.reserved1 = SVAL(req->in.body, 0x02);
io->smb2.in.reserved2 = IVAL(req->in.body, 0x04);
io->smb2.in.file.ntvfs = smb2srv_pull_handle(req, req->in.body, 0x08);
SMB2SRV_CHECK_FILE_HANDLE(io->smb2.in.file.ntvfs);
SMB2SRV_CALL_NTVFS_BACKEND(ntvfs_flush(req->ntvfs, io));
}
void smb2srv_break_recv(struct smb2srv_request *req)
{
union smb_lock *io;
SMB2SRV_CHECK_BODY_SIZE(req, 0x18, false);
SMB2SRV_TALLOC_IO_PTR(io, union smb_lock);
SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_break_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
io->smb2_break.level = RAW_LOCK_SMB2_BREAK;
io->smb2_break.in.oplock_level = CVAL(req->in.body, 0x02);
io->smb2_break.in.reserved = CVAL(req->in.body, 0x03);
io->smb2_break.in.reserved2 = IVAL(req->in.body, 0x04);
io->smb2_break.in.file.ntvfs = smb2srv_pull_handle(req, req->in.body, 0x08);
SMB2SRV_CHECK_FILE_HANDLE(io->smb2_break.in.file.ntvfs);
SMB2SRV_CALL_NTVFS_BACKEND(ntvfs_lock(req->ntvfs, io));
}
void smb2srv_notify_recv(struct smb2srv_request *req)
{
union smb_notify *io;
SMB2SRV_CHECK_BODY_SIZE(req, 0x20, False);
SMB2SRV_TALLOC_IO_PTR(io, union smb_notify);
SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_notify_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
io->smb2.level = RAW_NOTIFY_SMB2;
io->smb2.in.recursive = SVAL(req->in.body, 0x02);
io->smb2.in.buffer_size = IVAL(req->in.body, 0x04);
io->smb2.in.file.ntvfs = smb2srv_pull_handle(req, req->in.body, 0x08);
io->smb2.in.completion_filter = IVAL(req->in.body, 0x18);
io->smb2.in.unknown = BVAL(req->in.body, 0x1C);
SMB2SRV_CHECK_FILE_HANDLE(io->smb2.in.file.ntvfs);
SMB2SRV_CALL_NTVFS_BACKEND(ntvfs_notify(req->ntvfs, io));
}
void smb2srv_write_recv(struct smb2srv_request *req)
{
union smb_write *io;
SMB2SRV_CHECK_BODY_SIZE(req, 0x30, True);
SMB2SRV_TALLOC_IO_PTR(io, union smb_write);
SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_write_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
/* TODO: avoid the memcpy */
io->smb2.level = RAW_WRITE_SMB2;
SMB2SRV_CHECK(smb2_pull_o16s32_blob(&req->in, io, req->in.body+0x02, &io->smb2.in.data));
io->smb2.in.offset = BVAL(req->in.body, 0x08);
io->smb2.in.file.ntvfs = smb2srv_pull_handle(req, req->in.body, 0x10);
io->smb2.in.unknown1 = BVAL(req->in.body, 0x20);
io->smb2.in.unknown2 = BVAL(req->in.body, 0x28);
SMB2SRV_CHECK_FILE_HANDLE(io->smb2.in.file.ntvfs);
SMB2SRV_CALL_NTVFS_BACKEND(ntvfs_write(req->ntvfs, io));
}
void smb2srv_lock_recv(struct smb2srv_request *req)
{
union smb_lock *io;
SMB2SRV_CHECK_BODY_SIZE(req, 0x30, False);
SMB2SRV_TALLOC_IO_PTR(io, union smb_lock);
SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_lock_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
io->smb2.level = RAW_LOCK_SMB2;
io->smb2.in.unknown1 = SVAL(req->in.body, 0x02);
io->smb2.in.unknown2 = IVAL(req->in.body, 0x04);
io->smb2.in.file.ntvfs = smb2srv_pull_handle(req, req->in.body, 0x08);
io->smb2.in.offset = BVAL(req->in.body, 0x18);
io->smb2.in.count = BVAL(req->in.body, 0x20);
io->smb2.in.unknown5 = IVAL(req->in.body, 0x24);
io->smb2.in.flags = IVAL(req->in.body, 0x28);
SMB2SRV_CHECK_FILE_HANDLE(io->smb2.in.file.ntvfs);
SMB2SRV_CALL_NTVFS_BACKEND(ntvfs_lock(req->ntvfs, io));
}
void smb2srv_create_recv(struct smb2srv_request *req)
{
union smb_open *io;
DATA_BLOB blob;
int i;
SMB2SRV_CHECK_BODY_SIZE(req, 0x38, true);
SMB2SRV_TALLOC_IO_PTR(io, union smb_open);
SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_create_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
ZERO_STRUCT(io->smb2.in);
io->smb2.level = RAW_OPEN_SMB2;
io->smb2.in.security_flags = CVAL(req->in.body, 0x02);
io->smb2.in.oplock_level = CVAL(req->in.body, 0x03);
io->smb2.in.impersonation_level = IVAL(req->in.body, 0x04);
io->smb2.in.create_flags = BVAL(req->in.body, 0x08);
io->smb2.in.reserved = BVAL(req->in.body, 0x10);
io->smb2.in.desired_access = IVAL(req->in.body, 0x18);
io->smb2.in.file_attributes = IVAL(req->in.body, 0x1C);
io->smb2.in.share_access = IVAL(req->in.body, 0x20);
io->smb2.in.create_disposition = IVAL(req->in.body, 0x24);
io->smb2.in.create_options = IVAL(req->in.body, 0x28);
SMB2SRV_CHECK(smb2_pull_o16s16_string(&req->in, io, req->in.body+0x2C, &io->smb2.in.fname));
SMB2SRV_CHECK(smb2_pull_o32s32_blob(&req->in, io, req->in.body+0x30, &blob));
SMB2SRV_CHECK(smb2_create_blob_parse(io, blob, &io->smb2.in.blobs));
/* interpret the parsed tags that a server needs to respond to */
for (i=0;i<io->smb2.in.blobs.num_blobs;i++) {
if (strcmp(io->smb2.in.blobs.blobs[i].tag, SMB2_CREATE_TAG_EXTA) == 0) {
SMB2SRV_CHECK(ea_pull_list_chained(&io->smb2.in.blobs.blobs[i].data, io,
&io->smb2.in.eas.num_eas,
&io->smb2.in.eas.eas));
}
if (strcmp(io->smb2.in.blobs.blobs[i].tag, SMB2_CREATE_TAG_SECD) == 0) {
enum ndr_err_code ndr_err;
io->smb2.in.sec_desc = talloc(io, struct security_descriptor);
if (io->smb2.in.sec_desc == NULL) {
smb2srv_send_error(req, NT_STATUS_NO_MEMORY);
return;
}
ndr_err = ndr_pull_struct_blob(&io->smb2.in.blobs.blobs[i].data, io, NULL,
io->smb2.in.sec_desc,
(ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
smb2srv_send_error(req, ndr_map_error2ntstatus(ndr_err));
return;
}
}
if (strcmp(io->smb2.in.blobs.blobs[i].tag, SMB2_CREATE_TAG_DHNQ) == 0) {
io->smb2.in.durable_open = true;
}
if (strcmp(io->smb2.in.blobs.blobs[i].tag, SMB2_CREATE_TAG_DHNC) == 0) {
if (io->smb2.in.blobs.blobs[i].data.length != 16) {
smb2srv_send_error(req, NT_STATUS_INVALID_PARAMETER);
return;
}
io->smb2.in.durable_handle = talloc(io, struct smb2_handle);
if (io->smb2.in.durable_handle == NULL) {
smb2srv_send_error(req, NT_STATUS_NO_MEMORY);
return;
}
smb2_pull_handle(io->smb2.in.blobs.blobs[i].data.data, io->smb2.in.durable_handle);
}
if (strcmp(io->smb2.in.blobs.blobs[i].tag, SMB2_CREATE_TAG_ALSI) == 0) {
if (io->smb2.in.blobs.blobs[i].data.length != 8) {
smb2srv_send_error(req, NT_STATUS_INVALID_PARAMETER);
return;
}
io->smb2.in.alloc_size = BVAL(io->smb2.in.blobs.blobs[i].data.data, 0);
}
if (strcmp(io->smb2.in.blobs.blobs[i].tag, SMB2_CREATE_TAG_MXAC) == 0) {
io->smb2.in.query_maximal_access = true;
}
if (strcmp(io->smb2.in.blobs.blobs[i].tag, SMB2_CREATE_TAG_TWRP) == 0) {
if (io->smb2.in.blobs.blobs[i].data.length != 8) {
smb2srv_send_error(req, NT_STATUS_INVALID_PARAMETER);
return;
}
io->smb2.in.timewarp = BVAL(io->smb2.in.blobs.blobs[i].data.data, 0);
}
if (strcmp(io->smb2.in.blobs.blobs[i].tag, SMB2_CREATE_TAG_QFID) == 0) {
io->smb2.in.query_on_disk_id = true;
}
}
/* the VFS backend does not yet handle NULL filenames */
if (io->smb2.in.fname == NULL) {
io->smb2.in.fname = "";
}
SMB2SRV_CALL_NTVFS_BACKEND(ntvfs_open(req->ntvfs, io));
}