Ejemplos de smb2_padding_fix en C++ (Cpp)

Ejemplo n.º 1

Archivo: request.c Proyecto: AIdrifter/samba

/*
  push a uint16_t ofs/ uint16_t length/blob triple into a data blob
  the ofs points to the start of the offset/length pair, and is relative
  to the body start
*/
NTSTATUS smb2_push_o16s16_blob(struct smb2_request_buffer *buf, 
			       uint16_t ofs, DATA_BLOB blob)
{
	NTSTATUS status;
	size_t offset;
	size_t padding_length;
	size_t padding_fix;
	uint8_t *ptr = buf->body+ofs;

	if (buf->dynamic == NULL) {
		return NT_STATUS_INVALID_PARAMETER;
	}

	/* we have only 16 bit for the size */
	if (blob.length > 0xFFFF) {
		return NT_STATUS_INVALID_PARAMETER;
	}

	/* check if there're enough room for ofs and size */
	if (smb2_oob(buf, ptr, 4)) {
		return NT_STATUS_INVALID_PARAMETER;
	}

	if (blob.data == NULL) {
		if (blob.length != 0) {
			return NT_STATUS_INTERNAL_ERROR;
		}
		SSVAL(ptr, 0, 0);
		SSVAL(ptr, 2, 0);
		return NT_STATUS_OK;
	}

	offset = buf->dynamic - buf->hdr;
	padding_length = smb2_padding_size(offset, 2);
	offset += padding_length;
	padding_fix = smb2_padding_fix(buf);

	SSVAL(ptr, 0, offset);
	SSVAL(ptr, 2, blob.length);

	status = smb2_grow_buffer(buf, blob.length + padding_length - padding_fix);
	NT_STATUS_NOT_OK_RETURN(status);

	memset(buf->dynamic, 0, padding_length);
	buf->dynamic += padding_length;

	memcpy(buf->dynamic, blob.data, blob.length);
	buf->dynamic += blob.length;

	buf->size += blob.length + padding_length - padding_fix;
	buf->body_size += blob.length + padding_length;

	return NT_STATUS_OK;
}

Ejemplo n.º 2

Archivo: request.c Proyecto: technosaurus/samba4-GPL2

/*
  push a uint32_t length/ uint32_t ofs/blob triple into a data blob
  the ofs points to the start of the length/offset pair, and is relative
  to the body start
*/
NTSTATUS smb2_push_s32o32_blob(struct smb2_request_buffer *buf, 
			       uint32_t ofs, DATA_BLOB blob)
{
	NTSTATUS status;
	size_t offset;
	size_t padding_length;
	size_t padding_fix;
	uint8_t *ptr = buf->body+ofs;

	if (buf->dynamic == NULL) {
		return NT_STATUS_INVALID_PARAMETER;
	}

	/* check if there're enough room for ofs and size */
	if (smb2_oob(buf, ptr, 8)) {
		return NT_STATUS_BUFFER_TOO_SMALL;
	}

	if (blob.length == 0) {
		SIVAL(ptr, 0, 0);
		SIVAL(ptr, 4, 0);
		return NT_STATUS_OK;
	}

	offset = buf->dynamic - buf->hdr;
	padding_length = smb2_padding_size(offset, 8);
	offset += padding_length;
	padding_fix = smb2_padding_fix(buf);

	SIVAL(ptr, 0, blob.length);
	SIVAL(ptr, 4, offset);

	status = smb2_grow_buffer(buf, blob.length + padding_length - padding_fix);
	NT_STATUS_NOT_OK_RETURN(status);

	memset(buf->dynamic, 0, padding_length);
	buf->dynamic += padding_length;

	memcpy(buf->dynamic, blob.data, blob.length);
	buf->dynamic += blob.length;

	buf->size += blob.length + padding_length - padding_fix;
	buf->body_size += blob.length + padding_length;

	return NT_STATUS_OK;
}