Пример #1
0
void pack_usb_device(int pack, struct usb_device *udev)
{
	pack_uint32_t(pack, &udev->busnum);
	pack_uint32_t(pack, &udev->devnum);
	pack_uint32_t(pack, &udev->speed );

	pack_uint16_t(pack, &udev->idVendor );
	pack_uint16_t(pack, &udev->idProduct);
	pack_uint16_t(pack, &udev->bcdDevice);
}
/* depending upon the connection type, assemble a service_reply_pkt and
	send it to the other side */
int send_service_reply_pkt(service_reply_pkt *srp, FDContext *fdc)
{
	/* This will be the service_reply_pkt */
	char netpkt[SREP_PKTSIZE_MAX];
	/* The fields of the packet */
	uint16_t			req_status;
	struct in_addr		server_addr;
	uint16_t			port;
	uint32_t			num_files_32 = 0;
	uint64_t			num_files_64 = 0;
	char				capacity_free_ACD[MAX_ASCII_CODED_DECIMAL_LENGTH];
	int					ret = -1;

	ASSERT(fdc->type != FDC_UNKNOWN);

	memset(netpkt, 0, SREP_PKTSIZE_MAX);

	/* get the right sized quantities I need depending upon what the client
		needs.  Ensure to convert it to network byte order here too.
	*/
	req_status = srp->req_status;
	req_status = host_uint16_t_order_to_network_uint16_t_order(req_status);

	server_addr = srp->server_addr;
	server_addr.s_addr =
		host_uint32_t_order_to_network_uint32_t_order(server_addr.s_addr);
	
	port = srp->port;
	port = host_uint16_t_order_to_network_uint16_t_order(port);

	switch(fdc->type)
	{
		case FDC_32:
			num_files_32 = srp->num_files;
			num_files_32 =
				host_uint32_t_order_to_network_uint32_t_order(num_files_32);
			break;

		case FDC_64:
			num_files_64 = srp->num_files;
			num_files_64 =
				host_uint64_t_order_to_network_uint64_t_order(num_files_64);
			break;

		default:
			Server::Log("service_reply_pkt type conversion error!");
			return NET_WRITE_FAIL;
			break;
	}

	memmove(capacity_free_ACD,
			srp->capacity_free_ACD,
			MAX_ASCII_CODED_DECIMAL_LENGTH);
	
	/* Assemble the packet according to what type of connection it is. 
		Then send it. */
	switch(fdc->type)
	{
		case FDC_32:
			pack_uint16_t(netpkt, SREP32_req_status, req_status);
			pack_in_addr(netpkt, SREP32_server_addr, server_addr);
			pack_uint16_t(netpkt, SREP32_port, port);
			pack_uint32_t(netpkt, SREP32_num_files, num_files_32);
			pack_char_array(netpkt, SREP32_capacity_free_ACD,
				capacity_free_ACD, MAX_ASCII_CODED_DECIMAL_LENGTH);

			ret = net_write(fdc->fd, netpkt, SREP_PKTSIZE_32);
			break;

		case FDC_64:
			pack_uint16_t(netpkt, SREP64_req_status, req_status);
			pack_in_addr(netpkt, SREP64_server_addr, server_addr);
			pack_uint16_t(netpkt, SREP64_port, port);
			pack_uint64_t(netpkt, SREP64_num_files, num_files_64);
			pack_char_array(netpkt, SREP64_capacity_free_ACD,
				capacity_free_ACD, MAX_ASCII_CODED_DECIMAL_LENGTH);

			ret = net_write(fdc->fd, netpkt, SREP_PKTSIZE_64);
			break;

		default:
			Server::Log("service_reply_pkt type packing error!");
			return NET_WRITE_FAIL;
			break;
	}

	if (ret < 0) {
		return NET_WRITE_FAIL;
	}

	return NET_WRITE_OK;
}
/* depending upon the connection type, assemble a store_reply_pkt and
	send it to the other side */
int send_restore_reply_pkt(restore_reply_pkt *rstrp, FDContext *fdc)
{
	/* This will be the service_reply_pkt */
	char netpkt[RSTREP_PKTSIZE_MAX];
	/* The fields of the packet */
	struct in_addr		server_name;
	uint16_t			port;
	uint32_t			file_size_32 = 0 ;
	uint64_t			file_size_64 = 0 ;
	uint16_t			req_status;
	int					ret = -1;

	ASSERT(fdc->type != FDC_UNKNOWN);

	memset(netpkt, 0, RSTREP_PKTSIZE_MAX);

	/* get the right sized quantities I need depending upon what the client
		needs.  Ensure to convert it to network byte order here too.
	*/
	server_name = rstrp->server_name;
	server_name.s_addr =
		host_uint32_t_order_to_network_uint32_t_order(server_name.s_addr);
	
	port = rstrp->port;
	port = host_uint16_t_order_to_network_uint16_t_order(port);

	switch(fdc->type)
	{
		case FDC_32:
			file_size_32 = rstrp->file_size;
			
			/* If there is the possibility of a type narrowing, then check
				to see if bits were actually lost. */
			if ((sizeof(file_size_32) < sizeof(rstrp->file_size)) &&
				(uint64_t)file_size_32 != (uint64_t)rstrp->file_size)
			{
				Server::Log("restore_reply_pkt type narrowed from 64 to 32 "
					"bits with known loss of data and the ckpt restore will "
					"likely fail.");
				return NET_WRITE_FAIL;
			}

			file_size_32 = 
				host_uint32_t_order_to_network_uint32_t_order(file_size_32);
			break;

		case FDC_64:
			file_size_64 = rstrp->file_size;
			file_size_64 = 
				host_uint64_t_order_to_network_uint64_t_order(file_size_64);
			break;

		default:
			Server::Log("restore_reply_pkt type conversion error!");
			return NET_WRITE_FAIL;
			break;
	}

	req_status = rstrp->req_status;
	req_status = host_uint16_t_order_to_network_uint16_t_order(req_status);

	/* Assemble the packet according to what type of connection it is. 
		Then send it. */
	switch(fdc->type)
	{
		case FDC_32:
			pack_in_addr(netpkt, RSTREP32_server_name, server_name);
			pack_uint16_t(netpkt, RSTREP32_port, port);
			pack_uint32_t(netpkt, RSTREP32_file_size, file_size_32);
			pack_uint16_t(netpkt, RSTREP32_req_status, req_status);

			ret = net_write(fdc->fd, netpkt, RSTREP_PKTSIZE_32);
			break;

		case FDC_64:
			pack_in_addr(netpkt, RSTREP64_server_name, server_name);
			pack_uint16_t(netpkt, RSTREP64_port, port);
			pack_uint64_t(netpkt, RSTREP64_file_size, file_size_64);
			pack_uint16_t(netpkt, RSTREP64_req_status, req_status);

			ret = net_write(fdc->fd, netpkt, RSTREP_PKTSIZE_64);
			break;

		default:
			Server::Log("restore_reply_pkt type packing error!");
			return NET_WRITE_FAIL;
			break;
	}

	if (ret < 0) {
		return NET_WRITE_FAIL;
	}

	return NET_WRITE_OK;
}