Esempio n. 1
0
/*
  append raw bytes into the data portion of the request packet
  return the number of bytes added
*/
size_t smbcli_req_append_bytes(struct smbcli_request *req, const uint8_t *bytes, size_t byte_len)
{
	smbcli_req_grow_allocation(req, byte_len + req->out.data_size);
	memcpy(req->out.data + req->out.data_size, bytes, byte_len);
	smbcli_req_grow_data(req, byte_len + req->out.data_size);
	return byte_len;
}
Esempio n. 2
0
/*
  push a blob into the data portion of the request packet, growing it if necessary
  this gets quite tricky - please be very careful to cover all cases when modifying this

  if dest is NULL, then put the blob at the end of the data portion of the packet
*/
size_t smbcli_req_append_blob(struct smbcli_request *req, const DATA_BLOB *blob)
{
	smbcli_req_grow_allocation(req, req->out.data_size + blob->length);
	memcpy(req->out.data + req->out.data_size, blob->data, blob->length);
	smbcli_req_grow_data(req, req->out.data_size + blob->length);
	return blob->length;
}
Esempio n. 3
0
/*
  append variable block (type 5 buffer) into the data portion of the request packet
  return the number of bytes added
*/
size_t smbcli_req_append_var_block(struct smbcli_request *req, const uint8_t *bytes, uint16_t byte_len)
{
	smbcli_req_grow_allocation(req, byte_len + 3 + req->out.data_size);
	SCVAL(req->out.data + req->out.data_size, 0, 5);
	SSVAL(req->out.data + req->out.data_size, 1, byte_len);		/* add field length */
	if (byte_len > 0) {
		memcpy(req->out.data + req->out.data_size + 3, bytes, byte_len);
	}
	smbcli_req_grow_data(req, byte_len + 3 + req->out.data_size);
	return byte_len + 3;
}
Esempio n. 4
0
/*
  grow the data buffer portion of a reply packet. Note that as this
  can reallocate the packet buffer this invalidates any local pointers
  into the packet. 

  To cope with this req->out.ptr is supplied. This will be updated to
  point at the same offset into the packet as before this call
*/
static void smbcli_req_grow_data(struct smbcli_request *req, unsigned int new_size)
{
	int delta;

	smbcli_req_grow_allocation(req, new_size);

	delta = new_size - req->out.data_size;

	req->out.size += delta;
	req->out.data_size += delta;

	/* set the BCC to the new data size */
	SSVAL(req->out.vwv, VWV(req->out.wct), new_size);
}
Esempio n. 5
0
/*
  append a string into the data portion of the request packet

  return the number of bytes added to the packet
*/
size_t smbcli_req_append_string(struct smbcli_request *req, const char *str, unsigned int flags)
{
	size_t len;

	/* determine string type to use */
	if (!(flags & (STR_ASCII|STR_UNICODE))) {
		flags |= (req->transport->negotiate.capabilities & CAP_UNICODE) ? STR_UNICODE : STR_ASCII;
	}

	len = (strlen(str)+2) * MAX_BYTES_PER_CHAR;		

	smbcli_req_grow_allocation(req, len + req->out.data_size);

	len = push_string(req->out.data + req->out.data_size, str, len, flags);

	smbcli_req_grow_data(req, len + req->out.data_size);

	return len;
}
Esempio n. 6
0
/*
  setup a chained reply in req->out with the given word count and
  initial data buffer size.
*/
NTSTATUS smbcli_chained_request_setup(struct smbcli_request *req,
				      uint8_t command, 
				      unsigned int wct, size_t buflen)
{
	unsigned int new_size = 1 + (wct*2) + 2 + buflen;

	SSVAL(req->out.vwv, VWV(0), command);
	SSVAL(req->out.vwv, VWV(1), req->out.size - NBT_HDR_SIZE);

	smbcli_req_grow_allocation(req, req->out.data_size + new_size);

	req->out.vwv = req->out.buffer + req->out.size + 1;
	SCVAL(req->out.vwv, -1, wct);
	SSVAL(req->out.vwv, VWV(wct), buflen);

	req->out.size += new_size;
	req->out.data_size += new_size;

	return NT_STATUS_OK;
}