2018-05-07 21:02:21 +00:00
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// SPDX-License-Identifier: GPL-2.0
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2002-10-31 22:12:35 +00:00
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/*
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* Copied from Linux Monitor (LiMon) - Networking.
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*
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* Copyright 1994 - 2000 Neil Russell.
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* (See License)
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* Copyright 2000 Roland Borde
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* Copyright 2000 Paolo Scaffardi
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* Copyright 2000-2002 Wolfgang Denk, wd@denx.de
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*/
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/*
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* General Desription:
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*
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* The user interface supports commands for BOOTP, RARP, and TFTP.
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* Also, we support ARP internally. Depending on available data,
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* these interact as follows:
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*
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* BOOTP:
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*
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* Prerequisites: - own ethernet address
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* We want: - own IP address
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* - TFTP server IP address
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* - name of bootfile
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* Next step: ARP
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*
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2012-05-23 08:00:12 +00:00
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* LINK_LOCAL:
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*
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* Prerequisites: - own ethernet address
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* We want: - own IP address
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* Next step: ARP
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*
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2002-10-31 22:12:35 +00:00
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* RARP:
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*
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* Prerequisites: - own ethernet address
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* We want: - own IP address
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* - TFTP server IP address
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* Next step: ARP
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*
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* ARP:
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*
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* Prerequisites: - own ethernet address
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* - own IP address
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* - TFTP server IP address
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* We want: - TFTP server ethernet address
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* Next step: TFTP
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*
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* DHCP:
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*
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2005-08-12 21:43:12 +00:00
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* Prerequisites: - own ethernet address
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* We want: - IP, Netmask, ServerIP, Gateway IP
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* - bootfilename, lease time
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* Next step: - TFTP
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2002-10-31 22:12:35 +00:00
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*
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* TFTP:
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*
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* Prerequisites: - own ethernet address
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* - own IP address
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* - TFTP server IP address
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* - TFTP server ethernet address
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* - name of bootfile (if unknown, we use a default name
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* derived from our own IP address)
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* We want: - load the boot file
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* Next step: none
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2004-02-24 02:00:03 +00:00
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*
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* NFS:
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*
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* Prerequisites: - own ethernet address
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* - own IP address
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* - name of bootfile (if unknown, we use a default name
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* derived from our own IP address)
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* We want: - load the boot file
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* Next step: none
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2005-04-01 00:25:43 +00:00
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*
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* SNTP:
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*
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2005-08-12 21:43:12 +00:00
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* Prerequisites: - own ethernet address
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2005-04-01 00:25:43 +00:00
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* - own IP address
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* We want: - network time
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* Next step: none
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2002-10-31 22:12:35 +00:00
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*/
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#include <common.h>
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#include <command.h>
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2015-11-09 06:47:45 +00:00
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#include <console.h>
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2012-12-12 04:16:26 +00:00
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#include <environment.h>
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2015-03-22 22:09:24 +00:00
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#include <errno.h>
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2002-10-31 22:12:35 +00:00
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#include <net.h>
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2018-05-29 15:30:53 +00:00
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#include <net/fastboot.h>
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2015-08-23 22:21:43 +00:00
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#include <net/tftp.h>
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2017-01-19 08:51:45 +00:00
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#if defined(CONFIG_LED_STATUS)
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2003-10-08 22:33:00 +00:00
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#include <miiphy.h>
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2012-05-23 07:58:15 +00:00
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#include <status_led.h>
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2003-10-08 22:33:00 +00:00
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#endif
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2012-05-23 07:58:15 +00:00
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#include <watchdog.h>
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#include <linux/compiler.h>
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#include "arp.h"
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#include "bootp.h"
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2012-05-23 07:57:59 +00:00
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#include "cdp.h"
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2009-07-20 18:53:54 +00:00
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#if defined(CONFIG_CMD_DNS)
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#include "dns.h"
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#endif
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2012-05-23 08:00:12 +00:00
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#include "link_local.h"
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2012-05-23 07:58:15 +00:00
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#include "nfs.h"
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2012-05-23 07:58:02 +00:00
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#include "ping.h"
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2012-05-23 07:58:15 +00:00
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#include "rarp.h"
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#if defined(CONFIG_CMD_SNTP)
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#include "sntp.h"
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#endif
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2002-10-31 22:12:35 +00:00
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/** BOOTP EXTENTIONS **/
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2011-05-11 03:59:54 +00:00
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/* Our subnet mask (0=unknown) */
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2015-04-08 06:41:01 +00:00
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struct in_addr net_netmask;
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2011-05-11 03:59:54 +00:00
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/* Our gateways IP address */
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2015-04-08 06:41:01 +00:00
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struct in_addr net_gateway;
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2011-05-11 03:59:54 +00:00
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/* Our DNS IP address */
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2015-04-08 06:41:01 +00:00
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struct in_addr net_dns_server;
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2007-07-10 03:08:34 +00:00
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#if defined(CONFIG_BOOTP_DNS2)
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2011-05-11 03:59:54 +00:00
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/* Our 2nd DNS IP address */
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2015-04-08 06:41:01 +00:00
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struct in_addr net_dns_server2;
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2011-05-11 03:59:54 +00:00
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#endif
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2002-10-31 22:12:35 +00:00
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2007-06-11 15:41:07 +00:00
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#ifdef CONFIG_MCAST_TFTP /* Multicast TFTP */
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2015-04-08 06:41:01 +00:00
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struct in_addr net_mcast_addr;
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2007-06-11 15:41:07 +00:00
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#endif
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2002-10-31 22:12:35 +00:00
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/** END OF BOOTP EXTENTIONS **/
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2011-05-11 03:59:54 +00:00
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/* Our ethernet address */
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2015-04-08 06:41:04 +00:00
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u8 net_ethaddr[6];
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2011-05-11 03:59:54 +00:00
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/* Boot server enet address */
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2015-04-08 06:41:04 +00:00
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u8 net_server_ethaddr[6];
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2011-05-11 03:59:54 +00:00
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/* Our IP addr (0 = unknown) */
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2015-04-08 06:41:01 +00:00
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struct in_addr net_ip;
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2011-05-11 03:59:54 +00:00
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/* Server IP addr (0 = unknown) */
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2015-04-08 06:41:01 +00:00
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struct in_addr net_server_ip;
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2011-05-11 03:59:54 +00:00
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/* Current receive packet */
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2015-04-08 06:41:05 +00:00
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uchar *net_rx_packet;
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2011-05-11 03:59:54 +00:00
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/* Current rx packet length */
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2015-04-08 06:41:05 +00:00
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int net_rx_packet_len;
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2011-05-11 03:59:54 +00:00
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/* IP packet ID */
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2015-04-08 06:41:21 +00:00
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static unsigned net_ip_id;
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2011-05-11 03:59:54 +00:00
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/* Ethernet bcast address */
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2015-04-08 06:41:04 +00:00
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const u8 net_bcast_ethaddr[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
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const u8 net_null_ethaddr[6];
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2016-05-06 19:01:01 +00:00
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#if defined(CONFIG_API) || defined(CONFIG_EFI_LOADER)
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2015-04-08 06:41:21 +00:00
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void (*push_packet)(void *, int len) = 0;
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2007-12-27 17:19:02 +00:00
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#endif
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2011-05-11 03:59:54 +00:00
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/* Network loop state */
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2012-05-23 07:59:14 +00:00
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enum net_loop_state net_state;
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2011-05-11 03:59:54 +00:00
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/* Tried all network devices */
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2015-04-08 06:41:21 +00:00
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int net_restart_wrap;
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2011-05-11 03:59:54 +00:00
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/* Network loop restarted */
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2015-04-08 06:41:21 +00:00
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static int net_restarted;
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2011-05-11 03:59:54 +00:00
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/* At least one device configured */
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2015-04-08 06:41:21 +00:00
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static int net_dev_exists;
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2002-10-31 22:12:35 +00:00
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2004-04-18 17:39:38 +00:00
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/* XXX in both little & big endian machines 0xFFFF == ntohs(-1) */
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2011-05-11 03:59:54 +00:00
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/* default is without VLAN */
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2015-04-08 06:41:17 +00:00
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ushort net_our_vlan = 0xFFFF;
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2011-05-11 03:59:54 +00:00
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/* ditto */
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2015-04-08 06:41:17 +00:00
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ushort net_native_vlan = 0xFFFF;
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2004-04-15 21:48:45 +00:00
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2011-05-11 03:59:54 +00:00
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/* Boot File name */
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2015-09-30 14:12:05 +00:00
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char net_boot_file_name[1024];
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2015-04-08 06:41:02 +00:00
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/* The actual transferred size of the bootfile (in bytes) */
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u32 net_boot_file_size;
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/* Boot file size in blocks as reported by the DHCP server */
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u32 net_boot_file_expected_size_in_blocks;
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2002-10-31 22:12:35 +00:00
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2007-07-09 22:45:14 +00:00
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#if defined(CONFIG_CMD_SNTP)
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2011-05-11 03:59:54 +00:00
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/* NTP server IP address */
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2015-04-08 06:41:01 +00:00
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struct in_addr net_ntp_server;
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2011-05-11 03:59:54 +00:00
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/* offset time from UTC */
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2015-04-08 06:41:21 +00:00
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int net_ntp_time_offset;
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2005-04-01 00:25:43 +00:00
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#endif
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2015-04-08 06:41:05 +00:00
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static uchar net_pkt_buf[(PKTBUFSRX+1) * PKTSIZE_ALIGN + PKTALIGN];
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2015-03-22 22:09:11 +00:00
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/* Receive packets */
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uchar *net_rx_packets[PKTBUFSRX];
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2012-05-23 07:59:15 +00:00
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/* Current UDP RX packet handler */
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static rxhand_f *udp_packet_handler;
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/* Current ARP RX packet handler */
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static rxhand_f *arp_packet_handler;
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2011-10-26 14:18:38 +00:00
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#ifdef CONFIG_CMD_TFTPPUT
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2012-05-23 07:59:15 +00:00
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/* Current ICMP rx handler */
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static rxhand_icmp_f *packet_icmp_handler;
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2011-10-26 14:18:38 +00:00
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#endif
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2011-05-11 03:59:54 +00:00
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/* Current timeout handler */
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2015-04-08 06:41:21 +00:00
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static thand_f *time_handler;
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2011-05-11 03:59:54 +00:00
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/* Time base value */
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2015-04-08 06:41:21 +00:00
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static ulong time_start;
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2011-05-11 03:59:54 +00:00
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/* Current timeout value */
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2015-04-08 06:41:21 +00:00
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static ulong time_delta;
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2011-05-11 03:59:54 +00:00
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/* THE transmit packet */
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2015-04-08 06:41:05 +00:00
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uchar *net_tx_packet;
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2002-10-31 22:12:35 +00:00
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2011-10-24 18:00:02 +00:00
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static int net_check_prereq(enum proto_t protocol);
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2002-10-31 22:12:35 +00:00
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2015-04-08 06:41:21 +00:00
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static int net_try_count;
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2009-10-28 21:13:39 +00:00
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2013-08-13 11:03:05 +00:00
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int __maybe_unused net_busy_flag;
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2003-06-05 19:27:42 +00:00
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/**********************************************************************/
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2012-12-12 04:16:26 +00:00
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static int on_bootfile(const char *name, const char *value, enum env_op op,
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int flags)
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{
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2015-05-20 19:27:23 +00:00
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if (flags & H_PROGRAMMATIC)
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return 0;
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2012-12-12 04:16:26 +00:00
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switch (op) {
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case env_op_create:
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case env_op_overwrite:
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2015-04-08 06:41:02 +00:00
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copy_filename(net_boot_file_name, value,
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sizeof(net_boot_file_name));
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2012-12-12 04:16:26 +00:00
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break;
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default:
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break;
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}
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return 0;
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}
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U_BOOT_ENV_CALLBACK(bootfile, on_bootfile);
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2015-05-20 19:27:23 +00:00
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static int on_ipaddr(const char *name, const char *value, enum env_op op,
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int flags)
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{
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if (flags & H_PROGRAMMATIC)
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return 0;
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net_ip = string_to_ip(value);
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return 0;
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}
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U_BOOT_ENV_CALLBACK(ipaddr, on_ipaddr);
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static int on_gatewayip(const char *name, const char *value, enum env_op op,
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int flags)
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{
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if (flags & H_PROGRAMMATIC)
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return 0;
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net_gateway = string_to_ip(value);
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return 0;
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}
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U_BOOT_ENV_CALLBACK(gatewayip, on_gatewayip);
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static int on_netmask(const char *name, const char *value, enum env_op op,
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int flags)
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{
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if (flags & H_PROGRAMMATIC)
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return 0;
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net_netmask = string_to_ip(value);
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return 0;
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}
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U_BOOT_ENV_CALLBACK(netmask, on_netmask);
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static int on_serverip(const char *name, const char *value, enum env_op op,
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int flags)
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{
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if (flags & H_PROGRAMMATIC)
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return 0;
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net_server_ip = string_to_ip(value);
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return 0;
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}
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U_BOOT_ENV_CALLBACK(serverip, on_serverip);
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static int on_nvlan(const char *name, const char *value, enum env_op op,
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int flags)
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{
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if (flags & H_PROGRAMMATIC)
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return 0;
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net_native_vlan = string_to_vlan(value);
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return 0;
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}
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U_BOOT_ENV_CALLBACK(nvlan, on_nvlan);
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static int on_vlan(const char *name, const char *value, enum env_op op,
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int flags)
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{
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if (flags & H_PROGRAMMATIC)
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return 0;
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net_our_vlan = string_to_vlan(value);
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return 0;
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}
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U_BOOT_ENV_CALLBACK(vlan, on_vlan);
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#if defined(CONFIG_CMD_DNS)
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static int on_dnsip(const char *name, const char *value, enum env_op op,
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int flags)
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{
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if (flags & H_PROGRAMMATIC)
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return 0;
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|
|
net_dns_server = string_to_ip(value);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
U_BOOT_ENV_CALLBACK(dnsip, on_dnsip);
|
|
|
|
#endif
|
|
|
|
|
2011-10-27 06:24:32 +00:00
|
|
|
/*
|
|
|
|
* Check if autoload is enabled. If so, use either NFS or TFTP to download
|
|
|
|
* the boot file.
|
|
|
|
*/
|
|
|
|
void net_auto_load(void)
|
|
|
|
{
|
2012-12-12 04:16:22 +00:00
|
|
|
#if defined(CONFIG_CMD_NFS)
|
2017-08-03 18:22:12 +00:00
|
|
|
const char *s = env_get("autoload");
|
2011-10-27 06:24:32 +00:00
|
|
|
|
2012-12-12 04:16:22 +00:00
|
|
|
if (s != NULL && strcmp(s, "NFS") == 0) {
|
|
|
|
/*
|
|
|
|
* Use NFS to load the bootfile.
|
|
|
|
*/
|
2015-04-08 06:41:10 +00:00
|
|
|
nfs_start();
|
2012-12-12 04:16:22 +00:00
|
|
|
return;
|
|
|
|
}
|
2011-10-27 06:24:32 +00:00
|
|
|
#endif
|
2017-08-03 18:22:13 +00:00
|
|
|
if (env_get_yesno("autoload") == 0) {
|
2012-12-12 04:16:22 +00:00
|
|
|
/*
|
|
|
|
* Just use BOOTP/RARP to configure system;
|
|
|
|
* Do not use TFTP to load the bootfile.
|
|
|
|
*/
|
|
|
|
net_set_state(NETLOOP_SUCCESS);
|
|
|
|
return;
|
2011-10-27 06:24:32 +00:00
|
|
|
}
|
2015-04-08 06:41:07 +00:00
|
|
|
tftp_start(TFTPGET);
|
2011-10-27 06:24:32 +00:00
|
|
|
}
|
|
|
|
|
2015-04-08 06:41:21 +00:00
|
|
|
static void net_init_loop(void)
|
2009-02-10 08:38:52 +00:00
|
|
|
{
|
2013-05-17 09:41:03 +00:00
|
|
|
if (eth_get_dev())
|
2015-04-08 06:41:04 +00:00
|
|
|
memcpy(net_ethaddr, eth_get_ethaddr(), 6);
|
2009-04-03 22:43:00 +00:00
|
|
|
|
2009-04-28 06:36:11 +00:00
|
|
|
return;
|
2009-02-10 08:38:52 +00:00
|
|
|
}
|
|
|
|
|
2012-05-23 07:59:15 +00:00
|
|
|
static void net_clear_handlers(void)
|
|
|
|
{
|
|
|
|
net_set_udp_handler(NULL);
|
|
|
|
net_set_arp_handler(NULL);
|
2015-04-08 06:41:21 +00:00
|
|
|
net_set_timeout_handler(0, NULL);
|
2012-05-23 07:59:15 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void net_cleanup_loop(void)
|
|
|
|
{
|
|
|
|
net_clear_handlers();
|
|
|
|
}
|
|
|
|
|
2012-05-23 07:59:22 +00:00
|
|
|
void net_init(void)
|
|
|
|
{
|
|
|
|
static int first_call = 1;
|
|
|
|
|
|
|
|
if (first_call) {
|
|
|
|
/*
|
|
|
|
* Setup packet buffers, aligned correctly.
|
|
|
|
*/
|
|
|
|
int i;
|
|
|
|
|
2015-04-08 06:41:05 +00:00
|
|
|
net_tx_packet = &net_pkt_buf[0] + (PKTALIGN - 1);
|
|
|
|
net_tx_packet -= (ulong)net_tx_packet % PKTALIGN;
|
2015-03-22 22:09:11 +00:00
|
|
|
for (i = 0; i < PKTBUFSRX; i++) {
|
2015-04-08 06:41:05 +00:00
|
|
|
net_rx_packets[i] = net_tx_packet +
|
|
|
|
(i + 1) * PKTSIZE_ALIGN;
|
2015-03-22 22:09:11 +00:00
|
|
|
}
|
2015-04-08 06:41:08 +00:00
|
|
|
arp_init();
|
2012-05-23 07:59:22 +00:00
|
|
|
net_clear_handlers();
|
|
|
|
|
|
|
|
/* Only need to setup buffer pointers once. */
|
|
|
|
first_call = 0;
|
|
|
|
}
|
|
|
|
|
2015-04-08 06:41:21 +00:00
|
|
|
net_init_loop();
|
2012-05-23 07:59:22 +00:00
|
|
|
}
|
|
|
|
|
2002-10-31 22:12:35 +00:00
|
|
|
/**********************************************************************/
|
|
|
|
/*
|
|
|
|
* Main network processing loop.
|
|
|
|
*/
|
|
|
|
|
2015-04-08 06:41:21 +00:00
|
|
|
int net_loop(enum proto_t protocol)
|
2002-10-31 22:12:35 +00:00
|
|
|
{
|
2015-03-22 22:09:24 +00:00
|
|
|
int ret = -EINVAL;
|
2002-10-31 22:12:35 +00:00
|
|
|
|
2015-04-08 06:41:21 +00:00
|
|
|
net_restarted = 0;
|
|
|
|
net_dev_exists = 0;
|
|
|
|
net_try_count = 1;
|
|
|
|
debug_cond(DEBUG_INT_STATE, "--- net_loop Entry\n");
|
2003-06-05 19:27:42 +00:00
|
|
|
|
2011-12-10 11:08:06 +00:00
|
|
|
bootstage_mark_name(BOOTSTAGE_ID_ETH_START, "eth_start");
|
2012-05-23 07:59:22 +00:00
|
|
|
net_init();
|
2012-08-03 10:59:08 +00:00
|
|
|
if (eth_is_on_demand_init() || protocol != NETCONS) {
|
2005-04-03 14:52:59 +00:00
|
|
|
eth_halt();
|
2012-08-03 10:59:08 +00:00
|
|
|
eth_set_current();
|
2015-03-22 22:09:24 +00:00
|
|
|
ret = eth_init();
|
|
|
|
if (ret < 0) {
|
2012-08-03 10:59:08 +00:00
|
|
|
eth_halt();
|
2015-03-22 22:09:24 +00:00
|
|
|
return ret;
|
2012-08-03 10:59:08 +00:00
|
|
|
}
|
2015-04-08 06:41:21 +00:00
|
|
|
} else {
|
2015-03-22 22:09:06 +00:00
|
|
|
eth_init_state_only();
|
2015-04-08 06:41:21 +00:00
|
|
|
}
|
2002-10-31 22:12:35 +00:00
|
|
|
restart:
|
2013-08-13 11:03:05 +00:00
|
|
|
#ifdef CONFIG_USB_KEYBOARD
|
|
|
|
net_busy_flag = 0;
|
|
|
|
#endif
|
2012-05-23 07:59:14 +00:00
|
|
|
net_set_state(NETLOOP_CONTINUE);
|
2002-10-31 22:12:35 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Start the ball rolling with the given start function. From
|
|
|
|
* here on, this code is a state machine driven by received
|
|
|
|
* packets and timer events.
|
|
|
|
*/
|
2015-04-08 06:41:21 +00:00
|
|
|
debug_cond(DEBUG_INT_STATE, "--- net_loop Init\n");
|
|
|
|
net_init_loop();
|
2002-10-31 22:12:35 +00:00
|
|
|
|
2011-05-11 03:59:56 +00:00
|
|
|
switch (net_check_prereq(protocol)) {
|
2002-10-31 22:12:35 +00:00
|
|
|
case 1:
|
|
|
|
/* network not configured */
|
2005-04-03 14:52:59 +00:00
|
|
|
eth_halt();
|
2015-03-22 22:09:24 +00:00
|
|
|
return -ENODEV;
|
2002-10-31 22:12:35 +00:00
|
|
|
|
|
|
|
case 2:
|
|
|
|
/* network device not configured */
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 0:
|
2015-04-08 06:41:21 +00:00
|
|
|
net_dev_exists = 1;
|
2015-04-08 06:41:02 +00:00
|
|
|
net_boot_file_size = 0;
|
2002-10-31 22:12:35 +00:00
|
|
|
switch (protocol) {
|
2011-10-24 18:00:02 +00:00
|
|
|
case TFTPGET:
|
2011-10-24 18:00:07 +00:00
|
|
|
#ifdef CONFIG_CMD_TFTPPUT
|
|
|
|
case TFTPPUT:
|
|
|
|
#endif
|
2002-10-31 22:12:35 +00:00
|
|
|
/* always use ARP to get server ethernet address */
|
2015-04-08 06:41:07 +00:00
|
|
|
tftp_start(protocol);
|
2002-10-31 22:12:35 +00:00
|
|
|
break;
|
2011-05-17 00:03:40 +00:00
|
|
|
#ifdef CONFIG_CMD_TFTPSRV
|
|
|
|
case TFTPSRV:
|
2015-04-08 06:41:07 +00:00
|
|
|
tftp_start_server();
|
2011-05-17 00:03:40 +00:00
|
|
|
break;
|
|
|
|
#endif
|
2018-05-29 15:30:53 +00:00
|
|
|
#ifdef CONFIG_UDP_FUNCTION_FASTBOOT
|
|
|
|
case FASTBOOT:
|
|
|
|
fastboot_start_server();
|
|
|
|
break;
|
|
|
|
#endif
|
2007-07-09 22:45:14 +00:00
|
|
|
#if defined(CONFIG_CMD_DHCP)
|
2002-10-31 22:12:35 +00:00
|
|
|
case DHCP:
|
2015-04-08 06:41:09 +00:00
|
|
|
bootp_reset();
|
2015-04-08 06:41:01 +00:00
|
|
|
net_ip.s_addr = 0;
|
2015-04-08 06:41:09 +00:00
|
|
|
dhcp_request(); /* Basically same as BOOTP */
|
2002-10-31 22:12:35 +00:00
|
|
|
break;
|
2007-07-10 16:05:02 +00:00
|
|
|
#endif
|
2002-10-31 22:12:35 +00:00
|
|
|
|
|
|
|
case BOOTP:
|
2015-04-08 06:41:09 +00:00
|
|
|
bootp_reset();
|
2015-04-08 06:41:01 +00:00
|
|
|
net_ip.s_addr = 0;
|
2015-04-08 06:41:09 +00:00
|
|
|
bootp_request();
|
2002-10-31 22:12:35 +00:00
|
|
|
break;
|
|
|
|
|
2010-09-30 16:25:48 +00:00
|
|
|
#if defined(CONFIG_CMD_RARP)
|
2002-10-31 22:12:35 +00:00
|
|
|
case RARP:
|
2015-04-08 06:41:11 +00:00
|
|
|
rarp_try = 0;
|
2015-04-08 06:41:01 +00:00
|
|
|
net_ip.s_addr = 0;
|
2015-04-08 06:41:11 +00:00
|
|
|
rarp_request();
|
2002-10-31 22:12:35 +00:00
|
|
|
break;
|
2010-09-30 16:25:48 +00:00
|
|
|
#endif
|
2007-07-09 22:45:14 +00:00
|
|
|
#if defined(CONFIG_CMD_PING)
|
2003-06-05 19:27:42 +00:00
|
|
|
case PING:
|
2012-05-23 07:58:02 +00:00
|
|
|
ping_start();
|
2003-06-05 19:27:42 +00:00
|
|
|
break;
|
2004-02-24 02:00:03 +00:00
|
|
|
#endif
|
2007-07-09 22:45:14 +00:00
|
|
|
#if defined(CONFIG_CMD_NFS)
|
2004-02-24 02:00:03 +00:00
|
|
|
case NFS:
|
2015-04-08 06:41:10 +00:00
|
|
|
nfs_start();
|
2004-02-24 02:00:03 +00:00
|
|
|
break;
|
2004-04-15 21:48:45 +00:00
|
|
|
#endif
|
2007-07-09 22:45:14 +00:00
|
|
|
#if defined(CONFIG_CMD_CDP)
|
2004-04-15 21:48:45 +00:00
|
|
|
case CDP:
|
2015-04-08 06:41:14 +00:00
|
|
|
cdp_start();
|
2004-04-15 21:48:45 +00:00
|
|
|
break;
|
2004-08-02 21:11:11 +00:00
|
|
|
#endif
|
2017-07-20 08:10:55 +00:00
|
|
|
#if defined(CONFIG_NETCONSOLE) && !defined(CONFIG_SPL_BUILD)
|
2004-08-02 21:11:11 +00:00
|
|
|
case NETCONS:
|
2015-04-08 06:41:16 +00:00
|
|
|
nc_start();
|
2004-08-02 21:11:11 +00:00
|
|
|
break;
|
2005-04-01 00:25:43 +00:00
|
|
|
#endif
|
2007-07-09 22:45:14 +00:00
|
|
|
#if defined(CONFIG_CMD_SNTP)
|
2005-04-01 00:25:43 +00:00
|
|
|
case SNTP:
|
2015-04-08 06:41:12 +00:00
|
|
|
sntp_start();
|
2005-04-01 00:25:43 +00:00
|
|
|
break;
|
2009-07-20 18:53:54 +00:00
|
|
|
#endif
|
|
|
|
#if defined(CONFIG_CMD_DNS)
|
|
|
|
case DNS:
|
2015-04-08 06:41:15 +00:00
|
|
|
dns_start();
|
2009-07-20 18:53:54 +00:00
|
|
|
break;
|
2012-05-23 08:00:12 +00:00
|
|
|
#endif
|
|
|
|
#if defined(CONFIG_CMD_LINK_LOCAL)
|
|
|
|
case LINKLOCAL:
|
|
|
|
link_local_start();
|
|
|
|
break;
|
2003-06-05 19:27:42 +00:00
|
|
|
#endif
|
2002-10-31 22:12:35 +00:00
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2007-07-09 22:45:14 +00:00
|
|
|
#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
|
2011-05-11 03:59:54 +00:00
|
|
|
#if defined(CONFIG_SYS_FAULT_ECHO_LINK_DOWN) && \
|
2017-01-19 08:51:45 +00:00
|
|
|
defined(CONFIG_LED_STATUS) && \
|
|
|
|
defined(CONFIG_LED_STATUS_RED)
|
2003-10-08 22:33:00 +00:00
|
|
|
/*
|
2003-10-15 23:53:47 +00:00
|
|
|
* Echo the inverted link state to the fault LED.
|
2003-10-08 22:33:00 +00:00
|
|
|
*/
|
2011-05-04 02:40:43 +00:00
|
|
|
if (miiphy_link(eth_get_dev()->name, CONFIG_SYS_FAULT_MII_ADDR))
|
2017-01-19 08:51:45 +00:00
|
|
|
status_led_set(CONFIG_LED_STATUS_RED, CONFIG_LED_STATUS_OFF);
|
2011-05-04 02:40:43 +00:00
|
|
|
else
|
2017-01-19 08:51:45 +00:00
|
|
|
status_led_set(CONFIG_LED_STATUS_RED, CONFIG_LED_STATUS_ON);
|
2008-10-16 13:01:15 +00:00
|
|
|
#endif /* CONFIG_SYS_FAULT_ECHO_LINK_DOWN, ... */
|
2003-10-08 22:33:00 +00:00
|
|
|
#endif /* CONFIG_MII, ... */
|
2013-08-13 11:03:05 +00:00
|
|
|
#ifdef CONFIG_USB_KEYBOARD
|
|
|
|
net_busy_flag = 1;
|
|
|
|
#endif
|
2002-10-31 22:12:35 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Main packet reception loop. Loop receiving packets until
|
2012-05-23 07:59:14 +00:00
|
|
|
* someone sets `net_state' to a state that terminates.
|
2002-10-31 22:12:35 +00:00
|
|
|
*/
|
|
|
|
for (;;) {
|
|
|
|
WATCHDOG_RESET();
|
|
|
|
#ifdef CONFIG_SHOW_ACTIVITY
|
2012-05-15 08:59:08 +00:00
|
|
|
show_activity(1);
|
2002-10-31 22:12:35 +00:00
|
|
|
#endif
|
2015-12-21 22:31:35 +00:00
|
|
|
if (arp_timeout_check() > 0)
|
|
|
|
time_start = get_timer(0);
|
|
|
|
|
2002-10-31 22:12:35 +00:00
|
|
|
/*
|
|
|
|
* Check the ethernet for a new packet. The ethernet
|
|
|
|
* receive routine will process it.
|
2015-03-22 22:09:24 +00:00
|
|
|
* Most drivers return the most recent packet size, but not
|
|
|
|
* errors that may have happened.
|
2002-10-31 22:12:35 +00:00
|
|
|
*/
|
2008-04-03 15:04:19 +00:00
|
|
|
eth_rx();
|
2002-10-31 22:12:35 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Abort if ctrl-c was pressed.
|
|
|
|
*/
|
|
|
|
if (ctrlc()) {
|
2012-05-23 07:59:24 +00:00
|
|
|
/* cancel any ARP that may not have completed */
|
2015-04-08 06:41:01 +00:00
|
|
|
net_arp_wait_packet_ip.s_addr = 0;
|
2012-05-23 07:59:24 +00:00
|
|
|
|
2012-05-23 07:59:15 +00:00
|
|
|
net_cleanup_loop();
|
2003-06-27 21:31:46 +00:00
|
|
|
eth_halt();
|
2012-08-03 10:59:08 +00:00
|
|
|
/* Invalidate the last protocol */
|
|
|
|
eth_set_last_protocol(BOOTP);
|
|
|
|
|
2011-05-11 03:59:56 +00:00
|
|
|
puts("\nAbort\n");
|
2012-05-23 08:01:04 +00:00
|
|
|
/* include a debug print as well incase the debug
|
|
|
|
messages are directed to stderr */
|
2015-04-08 06:41:21 +00:00
|
|
|
debug_cond(DEBUG_INT_STATE, "--- net_loop Abort!\n");
|
2015-08-21 06:49:48 +00:00
|
|
|
ret = -EINTR;
|
2011-10-24 18:00:01 +00:00
|
|
|
goto done;
|
2002-10-31 22:12:35 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Check for a timeout, and run the timeout handler
|
|
|
|
* if we have one.
|
|
|
|
*/
|
2015-04-08 06:41:21 +00:00
|
|
|
if (time_handler &&
|
|
|
|
((get_timer(0) - time_start) > time_delta)) {
|
2002-10-31 22:12:35 +00:00
|
|
|
thand_f *x;
|
|
|
|
|
2007-07-09 22:45:14 +00:00
|
|
|
#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
|
2011-05-11 03:59:56 +00:00
|
|
|
#if defined(CONFIG_SYS_FAULT_ECHO_LINK_DOWN) && \
|
2017-01-19 08:51:45 +00:00
|
|
|
defined(CONFIG_LED_STATUS) && \
|
|
|
|
defined(CONFIG_LED_STATUS_RED)
|
2003-10-08 22:33:00 +00:00
|
|
|
/*
|
2003-10-15 23:53:47 +00:00
|
|
|
* Echo the inverted link state to the fault LED.
|
2003-10-08 22:33:00 +00:00
|
|
|
*/
|
2011-05-11 03:59:56 +00:00
|
|
|
if (miiphy_link(eth_get_dev()->name,
|
2015-04-08 06:41:21 +00:00
|
|
|
CONFIG_SYS_FAULT_MII_ADDR))
|
2017-01-19 08:51:45 +00:00
|
|
|
status_led_set(CONFIG_LED_STATUS_RED,
|
|
|
|
CONFIG_LED_STATUS_OFF);
|
2015-04-08 06:41:21 +00:00
|
|
|
else
|
2017-01-19 08:51:45 +00:00
|
|
|
status_led_set(CONFIG_LED_STATUS_RED,
|
|
|
|
CONFIG_LED_STATUS_ON);
|
2011-05-11 03:59:56 +00:00
|
|
|
#endif /* CONFIG_SYS_FAULT_ECHO_LINK_DOWN, ... */
|
2003-10-08 22:33:00 +00:00
|
|
|
#endif /* CONFIG_MII, ... */
|
2015-04-08 06:41:21 +00:00
|
|
|
debug_cond(DEBUG_INT_STATE, "--- net_loop timeout\n");
|
|
|
|
x = time_handler;
|
|
|
|
time_handler = (thand_f *)0;
|
2002-10-31 22:12:35 +00:00
|
|
|
(*x)();
|
|
|
|
}
|
|
|
|
|
2015-03-22 22:09:07 +00:00
|
|
|
if (net_state == NETLOOP_FAIL)
|
2015-04-08 06:41:21 +00:00
|
|
|
ret = net_start_again();
|
2002-10-31 22:12:35 +00:00
|
|
|
|
2012-05-23 07:59:14 +00:00
|
|
|
switch (net_state) {
|
2002-10-31 22:12:35 +00:00
|
|
|
case NETLOOP_RESTART:
|
2015-04-08 06:41:21 +00:00
|
|
|
net_restarted = 1;
|
2002-10-31 22:12:35 +00:00
|
|
|
goto restart;
|
|
|
|
|
|
|
|
case NETLOOP_SUCCESS:
|
2012-05-23 07:59:15 +00:00
|
|
|
net_cleanup_loop();
|
2015-04-08 06:41:02 +00:00
|
|
|
if (net_boot_file_size > 0) {
|
|
|
|
printf("Bytes transferred = %d (%x hex)\n",
|
|
|
|
net_boot_file_size, net_boot_file_size);
|
2017-08-03 18:22:10 +00:00
|
|
|
env_set_hex("filesize", net_boot_file_size);
|
|
|
|
env_set_hex("fileaddr", load_addr);
|
2002-10-31 22:12:35 +00:00
|
|
|
}
|
2012-08-03 10:59:08 +00:00
|
|
|
if (protocol != NETCONS)
|
|
|
|
eth_halt();
|
|
|
|
else
|
|
|
|
eth_halt_state_only();
|
|
|
|
|
|
|
|
eth_set_last_protocol(protocol);
|
|
|
|
|
2015-04-08 06:41:02 +00:00
|
|
|
ret = net_boot_file_size;
|
2015-04-08 06:41:21 +00:00
|
|
|
debug_cond(DEBUG_INT_STATE, "--- net_loop Success!\n");
|
2011-10-24 18:00:01 +00:00
|
|
|
goto done;
|
2002-10-31 22:12:35 +00:00
|
|
|
|
|
|
|
case NETLOOP_FAIL:
|
2012-05-23 07:59:15 +00:00
|
|
|
net_cleanup_loop();
|
2012-08-03 10:59:08 +00:00
|
|
|
/* Invalidate the last protocol */
|
|
|
|
eth_set_last_protocol(BOOTP);
|
2015-04-08 06:41:21 +00:00
|
|
|
debug_cond(DEBUG_INT_STATE, "--- net_loop Fail!\n");
|
2011-10-24 18:00:01 +00:00
|
|
|
goto done;
|
2012-05-23 07:59:14 +00:00
|
|
|
|
|
|
|
case NETLOOP_CONTINUE:
|
|
|
|
continue;
|
2002-10-31 22:12:35 +00:00
|
|
|
}
|
|
|
|
}
|
2011-10-24 18:00:01 +00:00
|
|
|
|
|
|
|
done:
|
2013-08-13 11:03:05 +00:00
|
|
|
#ifdef CONFIG_USB_KEYBOARD
|
|
|
|
net_busy_flag = 0;
|
|
|
|
#endif
|
2011-10-26 14:18:38 +00:00
|
|
|
#ifdef CONFIG_CMD_TFTPPUT
|
2011-10-24 18:00:01 +00:00
|
|
|
/* Clear out the handlers */
|
2012-05-23 07:59:15 +00:00
|
|
|
net_set_udp_handler(NULL);
|
2011-10-24 18:00:01 +00:00
|
|
|
net_set_icmp_handler(NULL);
|
2011-10-26 14:18:38 +00:00
|
|
|
#endif
|
2011-10-24 18:00:01 +00:00
|
|
|
return ret;
|
2002-10-31 22:12:35 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/**********************************************************************/
|
|
|
|
|
2015-04-08 06:41:21 +00:00
|
|
|
static void start_again_timeout_handler(void)
|
2002-10-31 22:12:35 +00:00
|
|
|
{
|
2012-05-23 07:59:14 +00:00
|
|
|
net_set_state(NETLOOP_RESTART);
|
2002-10-31 22:12:35 +00:00
|
|
|
}
|
|
|
|
|
2015-04-08 06:41:21 +00:00
|
|
|
int net_start_again(void)
|
2002-10-31 22:12:35 +00:00
|
|
|
{
|
2004-04-18 17:39:38 +00:00
|
|
|
char *nretry;
|
2009-10-28 21:13:39 +00:00
|
|
|
int retry_forever = 0;
|
|
|
|
unsigned long retrycnt = 0;
|
2015-03-22 22:09:24 +00:00
|
|
|
int ret;
|
2009-10-28 21:13:39 +00:00
|
|
|
|
2017-08-03 18:22:12 +00:00
|
|
|
nretry = env_get("netretry");
|
2009-10-28 21:13:39 +00:00
|
|
|
if (nretry) {
|
|
|
|
if (!strcmp(nretry, "yes"))
|
|
|
|
retry_forever = 1;
|
|
|
|
else if (!strcmp(nretry, "no"))
|
|
|
|
retrycnt = 0;
|
|
|
|
else if (!strcmp(nretry, "once"))
|
|
|
|
retrycnt = 1;
|
|
|
|
else
|
|
|
|
retrycnt = simple_strtoul(nretry, NULL, 0);
|
2015-03-22 22:09:07 +00:00
|
|
|
} else {
|
|
|
|
retrycnt = 0;
|
|
|
|
retry_forever = 0;
|
|
|
|
}
|
2009-10-28 21:13:39 +00:00
|
|
|
|
2018-03-09 14:29:06 +00:00
|
|
|
if ((!retry_forever) && (net_try_count > retrycnt)) {
|
2009-10-28 21:13:39 +00:00
|
|
|
eth_halt();
|
2012-05-23 07:59:14 +00:00
|
|
|
net_set_state(NETLOOP_FAIL);
|
2015-03-22 22:09:24 +00:00
|
|
|
/*
|
|
|
|
* We don't provide a way for the protocol to return an error,
|
|
|
|
* but this is almost always the reason.
|
|
|
|
*/
|
|
|
|
return -ETIMEDOUT;
|
2004-04-15 21:48:45 +00:00
|
|
|
}
|
2009-10-28 21:13:39 +00:00
|
|
|
|
2015-04-08 06:41:21 +00:00
|
|
|
net_try_count++;
|
2009-10-28 21:13:39 +00:00
|
|
|
|
2011-05-11 03:59:56 +00:00
|
|
|
eth_halt();
|
2007-12-27 15:58:41 +00:00
|
|
|
#if !defined(CONFIG_NET_DO_NOT_TRY_ANOTHER)
|
2015-04-08 06:41:21 +00:00
|
|
|
eth_try_another(!net_restarted);
|
2007-12-27 15:58:41 +00:00
|
|
|
#endif
|
2015-03-22 22:09:24 +00:00
|
|
|
ret = eth_init();
|
2015-04-08 06:41:21 +00:00
|
|
|
if (net_restart_wrap) {
|
|
|
|
net_restart_wrap = 0;
|
|
|
|
if (net_dev_exists) {
|
|
|
|
net_set_timeout_handler(10000UL,
|
|
|
|
start_again_timeout_handler);
|
2012-05-23 07:59:15 +00:00
|
|
|
net_set_udp_handler(NULL);
|
2004-04-18 17:39:38 +00:00
|
|
|
} else {
|
2012-05-23 07:59:14 +00:00
|
|
|
net_set_state(NETLOOP_FAIL);
|
2002-10-31 22:12:35 +00:00
|
|
|
}
|
2004-04-18 17:39:38 +00:00
|
|
|
} else {
|
2012-05-23 07:59:14 +00:00
|
|
|
net_set_state(NETLOOP_RESTART);
|
2002-10-31 22:12:35 +00:00
|
|
|
}
|
2015-03-22 22:09:24 +00:00
|
|
|
return ret;
|
2002-10-31 22:12:35 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/**********************************************************************/
|
|
|
|
/*
|
|
|
|
* Miscelaneous bits.
|
|
|
|
*/
|
|
|
|
|
2012-05-23 07:59:15 +00:00
|
|
|
static void dummy_handler(uchar *pkt, unsigned dport,
|
2015-04-08 06:41:01 +00:00
|
|
|
struct in_addr sip, unsigned sport,
|
2012-05-23 07:59:15 +00:00
|
|
|
unsigned len)
|
2012-05-23 07:58:01 +00:00
|
|
|
{
|
|
|
|
}
|
|
|
|
|
2012-05-23 07:59:15 +00:00
|
|
|
rxhand_f *net_get_udp_handler(void)
|
|
|
|
{
|
|
|
|
return udp_packet_handler;
|
|
|
|
}
|
2012-05-23 07:58:01 +00:00
|
|
|
|
2012-05-23 07:59:15 +00:00
|
|
|
void net_set_udp_handler(rxhand_f *f)
|
|
|
|
{
|
2015-04-08 06:41:21 +00:00
|
|
|
debug_cond(DEBUG_INT_STATE, "--- net_loop UDP handler set (%p)\n", f);
|
2012-05-23 07:59:15 +00:00
|
|
|
if (f == NULL)
|
|
|
|
udp_packet_handler = dummy_handler;
|
|
|
|
else
|
|
|
|
udp_packet_handler = f;
|
|
|
|
}
|
|
|
|
|
|
|
|
rxhand_f *net_get_arp_handler(void)
|
2002-10-31 22:12:35 +00:00
|
|
|
{
|
2012-05-23 07:59:15 +00:00
|
|
|
return arp_packet_handler;
|
|
|
|
}
|
|
|
|
|
|
|
|
void net_set_arp_handler(rxhand_f *f)
|
|
|
|
{
|
2015-04-08 06:41:21 +00:00
|
|
|
debug_cond(DEBUG_INT_STATE, "--- net_loop ARP handler set (%p)\n", f);
|
2012-05-23 07:59:15 +00:00
|
|
|
if (f == NULL)
|
|
|
|
arp_packet_handler = dummy_handler;
|
|
|
|
else
|
|
|
|
arp_packet_handler = f;
|
2002-10-31 22:12:35 +00:00
|
|
|
}
|
|
|
|
|
2011-10-26 14:18:38 +00:00
|
|
|
#ifdef CONFIG_CMD_TFTPPUT
|
2011-10-24 18:00:01 +00:00
|
|
|
void net_set_icmp_handler(rxhand_icmp_f *f)
|
|
|
|
{
|
|
|
|
packet_icmp_handler = f;
|
|
|
|
}
|
2011-10-26 14:18:38 +00:00
|
|
|
#endif
|
2002-10-31 22:12:35 +00:00
|
|
|
|
2015-04-08 06:41:21 +00:00
|
|
|
void net_set_timeout_handler(ulong iv, thand_f *f)
|
2002-10-31 22:12:35 +00:00
|
|
|
{
|
|
|
|
if (iv == 0) {
|
2012-05-23 08:01:04 +00:00
|
|
|
debug_cond(DEBUG_INT_STATE,
|
2015-04-08 06:41:21 +00:00
|
|
|
"--- net_loop timeout handler cancelled\n");
|
|
|
|
time_handler = (thand_f *)0;
|
2002-10-31 22:12:35 +00:00
|
|
|
} else {
|
2012-05-23 08:01:04 +00:00
|
|
|
debug_cond(DEBUG_INT_STATE,
|
2015-04-08 06:41:21 +00:00
|
|
|
"--- net_loop timeout handler set (%p)\n", f);
|
|
|
|
time_handler = f;
|
|
|
|
time_start = get_timer(0);
|
|
|
|
time_delta = iv * CONFIG_SYS_HZ / 1000;
|
2002-10-31 22:12:35 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2015-04-08 06:41:05 +00:00
|
|
|
int net_send_udp_packet(uchar *ether, struct in_addr dest, int dport, int sport,
|
2012-05-23 07:58:10 +00:00
|
|
|
int payload_len)
|
2003-06-05 19:27:42 +00:00
|
|
|
{
|
2004-04-15 21:48:45 +00:00
|
|
|
uchar *pkt;
|
2012-05-23 07:59:08 +00:00
|
|
|
int eth_hdr_size;
|
|
|
|
int pkt_hdr_size;
|
2004-04-15 21:48:45 +00:00
|
|
|
|
2015-04-08 06:41:21 +00:00
|
|
|
/* make sure the net_tx_packet is initialized (net_init() was called) */
|
2015-04-08 06:41:05 +00:00
|
|
|
assert(net_tx_packet != NULL);
|
|
|
|
if (net_tx_packet == NULL)
|
2012-05-23 07:59:22 +00:00
|
|
|
return -1;
|
|
|
|
|
2003-06-05 19:27:42 +00:00
|
|
|
/* convert to new style broadcast */
|
2015-04-08 06:41:01 +00:00
|
|
|
if (dest.s_addr == 0)
|
|
|
|
dest.s_addr = 0xFFFFFFFF;
|
2003-06-05 19:27:42 +00:00
|
|
|
|
|
|
|
/* if broadcast, make the ether address a broadcast and don't do ARP */
|
2015-04-08 06:41:01 +00:00
|
|
|
if (dest.s_addr == 0xFFFFFFFF)
|
2015-04-08 06:41:04 +00:00
|
|
|
ether = (uchar *)net_bcast_ethaddr;
|
2003-06-05 19:27:42 +00:00
|
|
|
|
2015-04-08 06:41:05 +00:00
|
|
|
pkt = (uchar *)net_tx_packet;
|
2012-05-23 07:59:08 +00:00
|
|
|
|
2015-04-08 06:41:05 +00:00
|
|
|
eth_hdr_size = net_set_ether(pkt, ether, PROT_IP);
|
2012-05-23 07:59:08 +00:00
|
|
|
pkt += eth_hdr_size;
|
|
|
|
net_set_udp_header(pkt, dest, dport, sport, payload_len);
|
|
|
|
pkt_hdr_size = eth_hdr_size + IP_UDP_HDR_SIZE;
|
2003-06-05 19:27:42 +00:00
|
|
|
|
2012-05-23 07:59:24 +00:00
|
|
|
/* if MAC address was not discovered yet, do an ARP request */
|
2015-04-08 06:41:04 +00:00
|
|
|
if (memcmp(ether, net_null_ethaddr, 6) == 0) {
|
2012-05-23 08:01:04 +00:00
|
|
|
debug_cond(DEBUG_DEV_PKT, "sending ARP for %pI4\n", &dest);
|
2009-07-23 07:01:03 +00:00
|
|
|
|
2012-05-23 07:59:08 +00:00
|
|
|
/* save the ip and eth addr for the packet to send after arp */
|
2015-04-08 06:41:01 +00:00
|
|
|
net_arp_wait_packet_ip = dest;
|
2015-04-08 06:41:08 +00:00
|
|
|
arp_wait_packet_ethaddr = ether;
|
2004-04-15 21:48:45 +00:00
|
|
|
|
2003-06-05 19:27:42 +00:00
|
|
|
/* size of the waiting packet */
|
2015-04-08 06:41:08 +00:00
|
|
|
arp_wait_tx_packet_size = pkt_hdr_size + payload_len;
|
2003-06-05 19:27:42 +00:00
|
|
|
|
|
|
|
/* and do the ARP request */
|
2015-04-08 06:41:08 +00:00
|
|
|
arp_wait_try = 1;
|
|
|
|
arp_wait_timer_start = get_timer(0);
|
|
|
|
arp_request();
|
2003-06-05 19:27:42 +00:00
|
|
|
return 1; /* waiting */
|
2012-05-23 07:59:08 +00:00
|
|
|
} else {
|
2012-05-23 08:01:04 +00:00
|
|
|
debug_cond(DEBUG_DEV_PKT, "sending UDP to %pI4/%pM\n",
|
2015-04-08 06:41:21 +00:00
|
|
|
&dest, ether);
|
2015-04-08 06:41:05 +00:00
|
|
|
net_send_packet(net_tx_packet, pkt_hdr_size + payload_len);
|
2012-05-23 07:59:08 +00:00
|
|
|
return 0; /* transmitted */
|
2003-06-05 19:27:42 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-08-07 11:58:56 +00:00
|
|
|
#ifdef CONFIG_IP_DEFRAG
|
|
|
|
/*
|
|
|
|
* This function collects fragments in a single packet, according
|
|
|
|
* to the algorithm in RFC815. It returns NULL or the pointer to
|
|
|
|
* a complete packet, in static storage
|
|
|
|
*/
|
|
|
|
#ifndef CONFIG_NET_MAXDEFRAG
|
|
|
|
#define CONFIG_NET_MAXDEFRAG 16384
|
|
|
|
#endif
|
2016-08-15 19:42:15 +00:00
|
|
|
#define IP_PKTSIZE (CONFIG_NET_MAXDEFRAG)
|
2009-08-07 11:58:56 +00:00
|
|
|
|
2012-05-23 07:58:05 +00:00
|
|
|
#define IP_MAXUDP (IP_PKTSIZE - IP_HDR_SIZE)
|
2009-08-07 11:58:56 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* this is the packet being assembled, either data or frag control.
|
|
|
|
* Fragments go by 8 bytes, so this union must be 8 bytes long
|
|
|
|
*/
|
|
|
|
struct hole {
|
|
|
|
/* first_byte is address of this structure */
|
|
|
|
u16 last_byte; /* last byte in this hole + 1 (begin of next hole) */
|
|
|
|
u16 next_hole; /* index of next (in 8-b blocks), 0 == none */
|
|
|
|
u16 prev_hole; /* index of prev, 0 == none */
|
|
|
|
u16 unused;
|
|
|
|
};
|
|
|
|
|
2015-04-08 06:41:21 +00:00
|
|
|
static struct ip_udp_hdr *__net_defragment(struct ip_udp_hdr *ip, int *lenp)
|
2009-08-07 11:58:56 +00:00
|
|
|
{
|
2012-05-15 08:59:08 +00:00
|
|
|
static uchar pkt_buff[IP_PKTSIZE] __aligned(PKTALIGN);
|
2009-08-07 11:58:56 +00:00
|
|
|
static u16 first_hole, total_len;
|
|
|
|
struct hole *payload, *thisfrag, *h, *newh;
|
2012-05-23 07:58:04 +00:00
|
|
|
struct ip_udp_hdr *localip = (struct ip_udp_hdr *)pkt_buff;
|
2009-08-07 11:58:56 +00:00
|
|
|
uchar *indata = (uchar *)ip;
|
|
|
|
int offset8, start, len, done = 0;
|
|
|
|
u16 ip_off = ntohs(ip->ip_off);
|
|
|
|
|
|
|
|
/* payload starts after IP header, this fragment is in there */
|
2012-05-23 07:58:05 +00:00
|
|
|
payload = (struct hole *)(pkt_buff + IP_HDR_SIZE);
|
2009-08-07 11:58:56 +00:00
|
|
|
offset8 = (ip_off & IP_OFFS);
|
|
|
|
thisfrag = payload + offset8;
|
|
|
|
start = offset8 * 8;
|
2012-05-23 07:58:05 +00:00
|
|
|
len = ntohs(ip->ip_len) - IP_HDR_SIZE;
|
2009-08-07 11:58:56 +00:00
|
|
|
|
|
|
|
if (start + len > IP_MAXUDP) /* fragment extends too far */
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
if (!total_len || localip->ip_id != ip->ip_id) {
|
|
|
|
/* new (or different) packet, reset structs */
|
|
|
|
total_len = 0xffff;
|
|
|
|
payload[0].last_byte = ~0;
|
|
|
|
payload[0].next_hole = 0;
|
|
|
|
payload[0].prev_hole = 0;
|
|
|
|
first_hole = 0;
|
|
|
|
/* any IP header will work, copy the first we received */
|
2012-05-23 07:58:05 +00:00
|
|
|
memcpy(localip, ip, IP_HDR_SIZE);
|
2009-08-07 11:58:56 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* What follows is the reassembly algorithm. We use the payload
|
|
|
|
* array as a linked list of hole descriptors, as each hole starts
|
|
|
|
* at a multiple of 8 bytes. However, last byte can be whatever value,
|
|
|
|
* so it is represented as byte count, not as 8-byte blocks.
|
|
|
|
*/
|
|
|
|
|
|
|
|
h = payload + first_hole;
|
|
|
|
while (h->last_byte < start) {
|
|
|
|
if (!h->next_hole) {
|
|
|
|
/* no hole that far away */
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
h = payload + h->next_hole;
|
|
|
|
}
|
|
|
|
|
2010-06-11 17:26:43 +00:00
|
|
|
/* last fragment may be 1..7 bytes, the "+7" forces acceptance */
|
|
|
|
if (offset8 + ((len + 7) / 8) <= h - payload) {
|
2009-08-07 11:58:56 +00:00
|
|
|
/* no overlap with holes (dup fragment?) */
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!(ip_off & IP_FLAGS_MFRAG)) {
|
|
|
|
/* no more fragmentss: truncate this (last) hole */
|
|
|
|
total_len = start + len;
|
|
|
|
h->last_byte = start + len;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* There is some overlap: fix the hole list. This code doesn't
|
|
|
|
* deal with a fragment that overlaps with two different holes
|
|
|
|
* (thus being a superset of a previously-received fragment).
|
|
|
|
*/
|
|
|
|
|
2011-05-11 03:59:56 +00:00
|
|
|
if ((h >= thisfrag) && (h->last_byte <= start + len)) {
|
2009-08-07 11:58:56 +00:00
|
|
|
/* complete overlap with hole: remove hole */
|
|
|
|
if (!h->prev_hole && !h->next_hole) {
|
|
|
|
/* last remaining hole */
|
|
|
|
done = 1;
|
|
|
|
} else if (!h->prev_hole) {
|
|
|
|
/* first hole */
|
|
|
|
first_hole = h->next_hole;
|
|
|
|
payload[h->next_hole].prev_hole = 0;
|
|
|
|
} else if (!h->next_hole) {
|
|
|
|
/* last hole */
|
|
|
|
payload[h->prev_hole].next_hole = 0;
|
|
|
|
} else {
|
|
|
|
/* in the middle of the list */
|
|
|
|
payload[h->next_hole].prev_hole = h->prev_hole;
|
|
|
|
payload[h->prev_hole].next_hole = h->next_hole;
|
|
|
|
}
|
|
|
|
|
|
|
|
} else if (h->last_byte <= start + len) {
|
|
|
|
/* overlaps with final part of the hole: shorten this hole */
|
|
|
|
h->last_byte = start;
|
|
|
|
|
|
|
|
} else if (h >= thisfrag) {
|
|
|
|
/* overlaps with initial part of the hole: move this hole */
|
|
|
|
newh = thisfrag + (len / 8);
|
|
|
|
*newh = *h;
|
|
|
|
h = newh;
|
|
|
|
if (h->next_hole)
|
|
|
|
payload[h->next_hole].prev_hole = (h - payload);
|
|
|
|
if (h->prev_hole)
|
|
|
|
payload[h->prev_hole].next_hole = (h - payload);
|
|
|
|
else
|
|
|
|
first_hole = (h - payload);
|
|
|
|
|
|
|
|
} else {
|
|
|
|
/* fragment sits in the middle: split the hole */
|
|
|
|
newh = thisfrag + (len / 8);
|
|
|
|
*newh = *h;
|
|
|
|
h->last_byte = start;
|
|
|
|
h->next_hole = (newh - payload);
|
|
|
|
newh->prev_hole = (h - payload);
|
|
|
|
if (newh->next_hole)
|
|
|
|
payload[newh->next_hole].prev_hole = (newh - payload);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* finally copy this fragment and possibly return whole packet */
|
2012-05-23 07:58:05 +00:00
|
|
|
memcpy((uchar *)thisfrag, indata + IP_HDR_SIZE, len);
|
2009-08-07 11:58:56 +00:00
|
|
|
if (!done)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
localip->ip_len = htons(total_len);
|
2012-05-23 07:58:05 +00:00
|
|
|
*lenp = total_len + IP_HDR_SIZE;
|
2009-08-07 11:58:56 +00:00
|
|
|
return localip;
|
|
|
|
}
|
|
|
|
|
2015-04-08 06:41:21 +00:00
|
|
|
static inline struct ip_udp_hdr *net_defragment(struct ip_udp_hdr *ip,
|
|
|
|
int *lenp)
|
2009-08-07 11:58:56 +00:00
|
|
|
{
|
|
|
|
u16 ip_off = ntohs(ip->ip_off);
|
|
|
|
if (!(ip_off & (IP_OFFS | IP_FLAGS_MFRAG)))
|
|
|
|
return ip; /* not a fragment */
|
2015-04-08 06:41:21 +00:00
|
|
|
return __net_defragment(ip, lenp);
|
2009-08-07 11:58:56 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
#else /* !CONFIG_IP_DEFRAG */
|
|
|
|
|
2015-04-08 06:41:21 +00:00
|
|
|
static inline struct ip_udp_hdr *net_defragment(struct ip_udp_hdr *ip,
|
|
|
|
int *lenp)
|
2009-08-07 11:58:56 +00:00
|
|
|
{
|
|
|
|
u16 ip_off = ntohs(ip->ip_off);
|
|
|
|
if (!(ip_off & (IP_OFFS | IP_FLAGS_MFRAG)))
|
|
|
|
return ip; /* not a fragment */
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
#endif
|
2004-04-15 21:48:45 +00:00
|
|
|
|
2011-10-24 18:00:00 +00:00
|
|
|
/**
|
|
|
|
* Receive an ICMP packet. We deal with REDIRECT and PING here, and silently
|
|
|
|
* drop others.
|
|
|
|
*
|
|
|
|
* @parma ip IP packet containing the ICMP
|
|
|
|
*/
|
2012-05-23 07:58:04 +00:00
|
|
|
static void receive_icmp(struct ip_udp_hdr *ip, int len,
|
2015-04-08 06:41:01 +00:00
|
|
|
struct in_addr src_ip, struct ethernet_hdr *et)
|
2011-10-24 18:00:00 +00:00
|
|
|
{
|
2012-05-23 07:58:09 +00:00
|
|
|
struct icmp_hdr *icmph = (struct icmp_hdr *)&ip->udp_src;
|
2011-10-24 18:00:00 +00:00
|
|
|
|
|
|
|
switch (icmph->type) {
|
|
|
|
case ICMP_REDIRECT:
|
|
|
|
if (icmph->code != ICMP_REDIR_HOST)
|
|
|
|
return;
|
|
|
|
printf(" ICMP Host Redirect to %pI4 ",
|
2015-04-08 06:41:21 +00:00
|
|
|
&icmph->un.gateway);
|
2011-10-24 18:00:00 +00:00
|
|
|
break;
|
2012-05-23 07:58:02 +00:00
|
|
|
default:
|
2011-10-24 18:00:00 +00:00
|
|
|
#if defined(CONFIG_CMD_PING)
|
2012-05-23 07:58:02 +00:00
|
|
|
ping_receive(et, ip, len);
|
2011-10-24 18:00:00 +00:00
|
|
|
#endif
|
2011-10-26 14:18:38 +00:00
|
|
|
#ifdef CONFIG_CMD_TFTPPUT
|
2011-10-24 18:00:01 +00:00
|
|
|
if (packet_icmp_handler)
|
|
|
|
packet_icmp_handler(icmph->type, icmph->code,
|
2015-04-08 06:41:21 +00:00
|
|
|
ntohs(ip->udp_dst), src_ip,
|
|
|
|
ntohs(ip->udp_src), icmph->un.data,
|
|
|
|
ntohs(ip->udp_len));
|
2011-10-26 14:18:38 +00:00
|
|
|
#endif
|
2011-10-24 18:00:00 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2015-03-22 22:09:11 +00:00
|
|
|
void net_process_received_packet(uchar *in_packet, int len)
|
2002-10-31 22:12:35 +00:00
|
|
|
{
|
2012-05-23 07:58:06 +00:00
|
|
|
struct ethernet_hdr *et;
|
2012-05-23 07:58:04 +00:00
|
|
|
struct ip_udp_hdr *ip;
|
2015-04-08 06:41:01 +00:00
|
|
|
struct in_addr dst_ip;
|
|
|
|
struct in_addr src_ip;
|
2012-05-23 07:58:12 +00:00
|
|
|
int eth_proto;
|
2007-07-09 22:45:14 +00:00
|
|
|
#if defined(CONFIG_CMD_CDP)
|
2004-04-15 21:48:45 +00:00
|
|
|
int iscdp;
|
|
|
|
#endif
|
|
|
|
ushort cti = 0, vlanid = VLAN_NONE, myvlanid, mynvlanid;
|
|
|
|
|
2012-05-23 08:01:04 +00:00
|
|
|
debug_cond(DEBUG_NET_PKT, "packet received\n");
|
2002-10-31 22:12:35 +00:00
|
|
|
|
2015-04-08 06:41:05 +00:00
|
|
|
net_rx_packet = in_packet;
|
|
|
|
net_rx_packet_len = len;
|
2015-03-22 22:09:11 +00:00
|
|
|
et = (struct ethernet_hdr *)in_packet;
|
2004-04-15 21:48:45 +00:00
|
|
|
|
|
|
|
/* too small packet? */
|
|
|
|
if (len < ETHER_HDR_SIZE)
|
|
|
|
return;
|
|
|
|
|
2016-05-06 19:01:01 +00:00
|
|
|
#if defined(CONFIG_API) || defined(CONFIG_EFI_LOADER)
|
2007-12-27 17:19:02 +00:00
|
|
|
if (push_packet) {
|
2015-03-22 22:09:11 +00:00
|
|
|
(*push_packet)(in_packet, len);
|
2007-12-27 17:19:02 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2007-07-09 22:45:14 +00:00
|
|
|
#if defined(CONFIG_CMD_CDP)
|
2004-04-15 21:48:45 +00:00
|
|
|
/* keep track if packet is CDP */
|
2012-05-23 07:58:00 +00:00
|
|
|
iscdp = is_cdp_packet(et->et_dest);
|
2004-04-15 21:48:45 +00:00
|
|
|
#endif
|
|
|
|
|
2015-04-08 06:41:17 +00:00
|
|
|
myvlanid = ntohs(net_our_vlan);
|
2004-04-15 21:48:45 +00:00
|
|
|
if (myvlanid == (ushort)-1)
|
|
|
|
myvlanid = VLAN_NONE;
|
2015-04-08 06:41:17 +00:00
|
|
|
mynvlanid = ntohs(net_native_vlan);
|
2004-04-15 21:48:45 +00:00
|
|
|
if (mynvlanid == (ushort)-1)
|
|
|
|
mynvlanid = VLAN_NONE;
|
2002-10-31 22:12:35 +00:00
|
|
|
|
2012-05-23 07:58:12 +00:00
|
|
|
eth_proto = ntohs(et->et_protlen);
|
2002-10-31 22:12:35 +00:00
|
|
|
|
2012-05-23 07:58:12 +00:00
|
|
|
if (eth_proto < 1514) {
|
2012-05-23 07:58:06 +00:00
|
|
|
struct e802_hdr *et802 = (struct e802_hdr *)et;
|
2002-10-31 22:12:35 +00:00
|
|
|
/*
|
2012-05-23 07:58:11 +00:00
|
|
|
* Got a 802.2 packet. Check the other protocol field.
|
|
|
|
* XXX VLAN over 802.2+SNAP not implemented!
|
2002-10-31 22:12:35 +00:00
|
|
|
*/
|
2012-05-23 07:58:12 +00:00
|
|
|
eth_proto = ntohs(et802->et_prot);
|
2004-04-15 21:48:45 +00:00
|
|
|
|
2015-03-22 22:09:11 +00:00
|
|
|
ip = (struct ip_udp_hdr *)(in_packet + E802_HDR_SIZE);
|
2002-10-31 22:12:35 +00:00
|
|
|
len -= E802_HDR_SIZE;
|
2004-04-15 21:48:45 +00:00
|
|
|
|
2012-05-23 07:58:12 +00:00
|
|
|
} else if (eth_proto != PROT_VLAN) { /* normal packet */
|
2015-03-22 22:09:11 +00:00
|
|
|
ip = (struct ip_udp_hdr *)(in_packet + ETHER_HDR_SIZE);
|
2002-10-31 22:12:35 +00:00
|
|
|
len -= ETHER_HDR_SIZE;
|
2004-04-15 21:48:45 +00:00
|
|
|
|
|
|
|
} else { /* VLAN packet */
|
2012-05-23 07:58:07 +00:00
|
|
|
struct vlan_ethernet_hdr *vet =
|
|
|
|
(struct vlan_ethernet_hdr *)et;
|
2004-04-15 21:48:45 +00:00
|
|
|
|
2012-05-23 08:01:04 +00:00
|
|
|
debug_cond(DEBUG_NET_PKT, "VLAN packet received\n");
|
2009-07-23 07:01:03 +00:00
|
|
|
|
2004-04-15 21:48:45 +00:00
|
|
|
/* too small packet? */
|
|
|
|
if (len < VLAN_ETHER_HDR_SIZE)
|
|
|
|
return;
|
|
|
|
|
|
|
|
/* if no VLAN active */
|
2015-04-08 06:41:17 +00:00
|
|
|
if ((ntohs(net_our_vlan) & VLAN_IDMASK) == VLAN_NONE
|
2007-07-09 22:45:14 +00:00
|
|
|
#if defined(CONFIG_CMD_CDP)
|
2004-04-15 21:48:45 +00:00
|
|
|
&& iscdp == 0
|
|
|
|
#endif
|
|
|
|
)
|
|
|
|
return;
|
|
|
|
|
|
|
|
cti = ntohs(vet->vet_tag);
|
|
|
|
vlanid = cti & VLAN_IDMASK;
|
2012-05-23 07:58:12 +00:00
|
|
|
eth_proto = ntohs(vet->vet_type);
|
2004-04-15 21:48:45 +00:00
|
|
|
|
2015-03-22 22:09:11 +00:00
|
|
|
ip = (struct ip_udp_hdr *)(in_packet + VLAN_ETHER_HDR_SIZE);
|
2004-04-15 21:48:45 +00:00
|
|
|
len -= VLAN_ETHER_HDR_SIZE;
|
2002-10-31 22:12:35 +00:00
|
|
|
}
|
|
|
|
|
2012-05-23 08:01:04 +00:00
|
|
|
debug_cond(DEBUG_NET_PKT, "Receive from protocol 0x%x\n", eth_proto);
|
2002-10-31 22:12:35 +00:00
|
|
|
|
2007-07-09 22:45:14 +00:00
|
|
|
#if defined(CONFIG_CMD_CDP)
|
2004-04-15 21:48:45 +00:00
|
|
|
if (iscdp) {
|
2012-05-23 07:58:13 +00:00
|
|
|
cdp_receive((uchar *)ip, len);
|
2004-04-15 21:48:45 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
if ((myvlanid & VLAN_IDMASK) != VLAN_NONE) {
|
|
|
|
if (vlanid == VLAN_NONE)
|
|
|
|
vlanid = (mynvlanid & VLAN_IDMASK);
|
|
|
|
/* not matched? */
|
|
|
|
if (vlanid != (myvlanid & VLAN_IDMASK))
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2012-05-23 07:58:12 +00:00
|
|
|
switch (eth_proto) {
|
2002-10-31 22:12:35 +00:00
|
|
|
case PROT_ARP:
|
2015-04-08 06:41:08 +00:00
|
|
|
arp_receive(et, ip, len);
|
2005-01-12 00:15:14 +00:00
|
|
|
break;
|
2002-10-31 22:12:35 +00:00
|
|
|
|
2010-09-30 16:25:48 +00:00
|
|
|
#ifdef CONFIG_CMD_RARP
|
2002-10-31 22:12:35 +00:00
|
|
|
case PROT_RARP:
|
2012-05-23 07:58:03 +00:00
|
|
|
rarp_receive(ip, len);
|
2002-10-31 22:12:35 +00:00
|
|
|
break;
|
2010-09-30 16:25:48 +00:00
|
|
|
#endif
|
2002-10-31 22:12:35 +00:00
|
|
|
case PROT_IP:
|
2012-05-23 08:01:04 +00:00
|
|
|
debug_cond(DEBUG_NET_PKT, "Got IP\n");
|
2009-08-07 11:58:56 +00:00
|
|
|
/* Before we start poking the header, make sure it is there */
|
2012-05-23 07:58:04 +00:00
|
|
|
if (len < IP_UDP_HDR_SIZE) {
|
|
|
|
debug("len bad %d < %lu\n", len,
|
2015-04-08 06:41:21 +00:00
|
|
|
(ulong)IP_UDP_HDR_SIZE);
|
2002-10-31 22:12:35 +00:00
|
|
|
return;
|
|
|
|
}
|
2009-08-07 11:58:56 +00:00
|
|
|
/* Check the packet length */
|
2002-10-31 22:12:35 +00:00
|
|
|
if (len < ntohs(ip->ip_len)) {
|
2012-05-23 08:01:04 +00:00
|
|
|
debug("len bad %d < %d\n", len, ntohs(ip->ip_len));
|
2002-10-31 22:12:35 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
len = ntohs(ip->ip_len);
|
2012-05-23 08:01:04 +00:00
|
|
|
debug_cond(DEBUG_NET_PKT, "len=%d, v=%02x\n",
|
2015-04-08 06:41:21 +00:00
|
|
|
len, ip->ip_hl_v & 0xff);
|
2009-07-23 07:01:03 +00:00
|
|
|
|
2009-08-07 11:58:56 +00:00
|
|
|
/* Can't deal with anything except IPv4 */
|
2011-05-04 02:40:43 +00:00
|
|
|
if ((ip->ip_hl_v & 0xf0) != 0x40)
|
2002-10-31 22:12:35 +00:00
|
|
|
return;
|
2009-08-07 11:58:56 +00:00
|
|
|
/* Can't deal with IP options (headers != 20 bytes) */
|
2011-05-04 02:40:43 +00:00
|
|
|
if ((ip->ip_hl_v & 0x0f) > 0x05)
|
2008-06-03 13:48:17 +00:00
|
|
|
return;
|
2009-08-07 11:58:56 +00:00
|
|
|
/* Check the Checksum of the header */
|
2015-01-20 05:16:08 +00:00
|
|
|
if (!ip_checksum_ok((uchar *)ip, IP_HDR_SIZE)) {
|
2012-05-23 08:01:04 +00:00
|
|
|
debug("checksum bad\n");
|
2002-10-31 22:12:35 +00:00
|
|
|
return;
|
|
|
|
}
|
2009-08-07 11:58:56 +00:00
|
|
|
/* If it is not for us, ignore it */
|
2015-04-08 06:41:01 +00:00
|
|
|
dst_ip = net_read_ip(&ip->ip_dst);
|
|
|
|
if (net_ip.s_addr && dst_ip.s_addr != net_ip.s_addr &&
|
|
|
|
dst_ip.s_addr != 0xFFFFFFFF) {
|
2007-06-11 15:41:07 +00:00
|
|
|
#ifdef CONFIG_MCAST_TFTP
|
2015-04-08 06:41:01 +00:00
|
|
|
if (net_mcast_addr != dst_ip)
|
2007-06-11 15:41:07 +00:00
|
|
|
#endif
|
2011-05-04 02:40:46 +00:00
|
|
|
return;
|
2002-10-31 22:12:35 +00:00
|
|
|
}
|
2011-04-18 06:19:50 +00:00
|
|
|
/* Read source IP address for later use */
|
2015-04-08 06:41:01 +00:00
|
|
|
src_ip = net_read_ip(&ip->ip_src);
|
2009-08-07 11:58:56 +00:00
|
|
|
/*
|
|
|
|
* The function returns the unchanged packet if it's not
|
|
|
|
* a fragment, and either the complete packet or NULL if
|
|
|
|
* it is a fragment (if !CONFIG_IP_DEFRAG, it returns NULL)
|
|
|
|
*/
|
2015-04-08 06:41:21 +00:00
|
|
|
ip = net_defragment(ip, &len);
|
2011-05-04 02:40:47 +00:00
|
|
|
if (!ip)
|
2009-08-07 11:58:56 +00:00
|
|
|
return;
|
2002-10-31 22:12:35 +00:00
|
|
|
/*
|
|
|
|
* watch for ICMP host redirects
|
|
|
|
*
|
2003-06-27 21:31:46 +00:00
|
|
|
* There is no real handler code (yet). We just watch
|
|
|
|
* for ICMP host redirect messages. In case anybody
|
|
|
|
* sees these messages: please contact me
|
|
|
|
* (wd@denx.de), or - even better - send me the
|
|
|
|
* necessary fixes :-)
|
2002-10-31 22:12:35 +00:00
|
|
|
*
|
2003-06-27 21:31:46 +00:00
|
|
|
* Note: in all cases where I have seen this so far
|
|
|
|
* it was a problem with the router configuration,
|
|
|
|
* for instance when a router was configured in the
|
|
|
|
* BOOTP reply, but the TFTP server was on the same
|
|
|
|
* subnet. So this is probably a warning that your
|
|
|
|
* configuration might be wrong. But I'm not really
|
|
|
|
* sure if there aren't any other situations.
|
2011-10-24 18:00:01 +00:00
|
|
|
*
|
|
|
|
* Simon Glass <sjg@chromium.org>: We get an ICMP when
|
|
|
|
* we send a tftp packet to a dead connection, or when
|
|
|
|
* there is no server at the other end.
|
2002-10-31 22:12:35 +00:00
|
|
|
*/
|
|
|
|
if (ip->ip_p == IPPROTO_ICMP) {
|
2011-10-24 18:00:00 +00:00
|
|
|
receive_icmp(ip, len, src_ip, et);
|
|
|
|
return;
|
2002-10-31 22:12:35 +00:00
|
|
|
} else if (ip->ip_p != IPPROTO_UDP) { /* Only UDP packets */
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2012-05-23 08:01:04 +00:00
|
|
|
debug_cond(DEBUG_DEV_PKT,
|
2015-04-08 06:41:21 +00:00
|
|
|
"received UDP (to=%pI4, from=%pI4, len=%d)\n",
|
|
|
|
&dst_ip, &src_ip, len);
|
2012-05-23 08:01:04 +00:00
|
|
|
|
2005-08-12 18:06:52 +00:00
|
|
|
#ifdef CONFIG_UDP_CHECKSUM
|
|
|
|
if (ip->udp_xsum != 0) {
|
2005-08-12 21:43:12 +00:00
|
|
|
ulong xsum;
|
2005-08-12 18:06:52 +00:00
|
|
|
ushort *sumptr;
|
|
|
|
ushort sumlen;
|
|
|
|
|
|
|
|
xsum = ip->ip_p;
|
|
|
|
xsum += (ntohs(ip->udp_len));
|
2015-04-08 06:41:01 +00:00
|
|
|
xsum += (ntohl(ip->ip_src.s_addr) >> 16) & 0x0000ffff;
|
|
|
|
xsum += (ntohl(ip->ip_src.s_addr) >> 0) & 0x0000ffff;
|
|
|
|
xsum += (ntohl(ip->ip_dst.s_addr) >> 16) & 0x0000ffff;
|
|
|
|
xsum += (ntohl(ip->ip_dst.s_addr) >> 0) & 0x0000ffff;
|
2005-08-12 18:06:52 +00:00
|
|
|
|
|
|
|
sumlen = ntohs(ip->udp_len);
|
2015-04-08 06:41:21 +00:00
|
|
|
sumptr = (ushort *)&(ip->udp_src);
|
2005-08-12 18:06:52 +00:00
|
|
|
|
|
|
|
while (sumlen > 1) {
|
2005-08-12 21:43:12 +00:00
|
|
|
ushort sumdata;
|
2005-08-12 18:06:52 +00:00
|
|
|
|
|
|
|
sumdata = *sumptr++;
|
|
|
|
xsum += ntohs(sumdata);
|
|
|
|
sumlen -= 2;
|
|
|
|
}
|
|
|
|
if (sumlen > 0) {
|
2005-08-12 21:43:12 +00:00
|
|
|
ushort sumdata;
|
2005-08-12 18:06:52 +00:00
|
|
|
|
2015-04-08 06:41:21 +00:00
|
|
|
sumdata = *(unsigned char *)sumptr;
|
2005-08-12 21:43:12 +00:00
|
|
|
sumdata = (sumdata << 8) & 0xff00;
|
2005-08-12 18:06:52 +00:00
|
|
|
xsum += sumdata;
|
|
|
|
}
|
|
|
|
while ((xsum >> 16) != 0) {
|
2011-05-11 03:59:54 +00:00
|
|
|
xsum = (xsum & 0x0000ffff) +
|
|
|
|
((xsum >> 16) & 0x0000ffff);
|
2005-08-12 18:06:52 +00:00
|
|
|
}
|
|
|
|
if ((xsum != 0x00000000) && (xsum != 0x0000ffff)) {
|
2008-07-10 23:16:00 +00:00
|
|
|
printf(" UDP wrong checksum %08lx %08x\n",
|
2015-04-08 06:41:21 +00:00
|
|
|
xsum, ntohs(ip->udp_xsum));
|
2005-08-12 18:06:52 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2017-07-20 08:10:55 +00:00
|
|
|
#if defined(CONFIG_NETCONSOLE) && !defined(CONFIG_SPL_BUILD)
|
2012-05-23 07:58:04 +00:00
|
|
|
nc_input_packet((uchar *)ip + IP_UDP_HDR_SIZE,
|
2015-04-08 06:41:21 +00:00
|
|
|
src_ip,
|
|
|
|
ntohs(ip->udp_dst),
|
|
|
|
ntohs(ip->udp_src),
|
|
|
|
ntohs(ip->udp_len) - UDP_HDR_SIZE);
|
2004-08-02 21:11:11 +00:00
|
|
|
#endif
|
2002-10-31 22:12:35 +00:00
|
|
|
/*
|
2015-04-08 06:41:21 +00:00
|
|
|
* IP header OK. Pass the packet to the current handler.
|
2002-10-31 22:12:35 +00:00
|
|
|
*/
|
2012-05-23 07:59:15 +00:00
|
|
|
(*udp_packet_handler)((uchar *)ip + IP_UDP_HDR_SIZE,
|
2015-04-08 06:41:21 +00:00
|
|
|
ntohs(ip->udp_dst),
|
|
|
|
src_ip,
|
|
|
|
ntohs(ip->udp_src),
|
|
|
|
ntohs(ip->udp_len) - UDP_HDR_SIZE);
|
2002-10-31 22:12:35 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/**********************************************************************/
|
|
|
|
|
2011-10-24 18:00:02 +00:00
|
|
|
static int net_check_prereq(enum proto_t protocol)
|
2002-10-31 22:12:35 +00:00
|
|
|
{
|
|
|
|
switch (protocol) {
|
2004-04-18 17:39:38 +00:00
|
|
|
/* Fall through */
|
2007-07-09 22:45:14 +00:00
|
|
|
#if defined(CONFIG_CMD_PING)
|
2003-06-05 19:27:42 +00:00
|
|
|
case PING:
|
2015-04-08 06:41:01 +00:00
|
|
|
if (net_ping_ip.s_addr == 0) {
|
2011-05-11 03:59:56 +00:00
|
|
|
puts("*** ERROR: ping address not given\n");
|
2011-05-04 02:40:45 +00:00
|
|
|
return 1;
|
2004-04-18 17:39:38 +00:00
|
|
|
}
|
|
|
|
goto common;
|
2004-02-24 02:00:03 +00:00
|
|
|
#endif
|
2007-07-09 22:45:14 +00:00
|
|
|
#if defined(CONFIG_CMD_SNTP)
|
2005-04-01 00:25:43 +00:00
|
|
|
case SNTP:
|
2015-04-08 06:41:01 +00:00
|
|
|
if (net_ntp_server.s_addr == 0) {
|
2011-05-11 03:59:56 +00:00
|
|
|
puts("*** ERROR: NTP server address not given\n");
|
2011-05-04 02:40:45 +00:00
|
|
|
return 1;
|
2005-04-01 00:25:43 +00:00
|
|
|
}
|
|
|
|
goto common;
|
|
|
|
#endif
|
2009-07-20 18:53:54 +00:00
|
|
|
#if defined(CONFIG_CMD_DNS)
|
|
|
|
case DNS:
|
2015-04-08 06:41:01 +00:00
|
|
|
if (net_dns_server.s_addr == 0) {
|
2009-07-20 18:53:54 +00:00
|
|
|
puts("*** ERROR: DNS server address not given\n");
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
goto common;
|
|
|
|
#endif
|
2007-07-09 22:45:14 +00:00
|
|
|
#if defined(CONFIG_CMD_NFS)
|
2004-02-24 02:00:03 +00:00
|
|
|
case NFS:
|
2003-06-05 19:27:42 +00:00
|
|
|
#endif
|
2015-04-08 06:41:21 +00:00
|
|
|
/* Fall through */
|
2011-10-24 18:00:02 +00:00
|
|
|
case TFTPGET:
|
2011-10-24 18:00:07 +00:00
|
|
|
case TFTPPUT:
|
2015-04-08 06:41:01 +00:00
|
|
|
if (net_server_ip.s_addr == 0) {
|
2011-05-11 03:59:56 +00:00
|
|
|
puts("*** ERROR: `serverip' not set\n");
|
2011-05-04 02:40:45 +00:00
|
|
|
return 1;
|
2004-04-18 17:39:38 +00:00
|
|
|
}
|
2011-05-11 03:59:56 +00:00
|
|
|
#if defined(CONFIG_CMD_PING) || defined(CONFIG_CMD_SNTP) || \
|
|
|
|
defined(CONFIG_CMD_DNS)
|
|
|
|
common:
|
2003-06-05 19:27:42 +00:00
|
|
|
#endif
|
2011-05-01 23:38:40 +00:00
|
|
|
/* Fall through */
|
2003-06-05 19:27:42 +00:00
|
|
|
|
2011-05-01 23:38:40 +00:00
|
|
|
case NETCONS:
|
2018-05-29 15:30:53 +00:00
|
|
|
case FASTBOOT:
|
2011-05-17 00:03:40 +00:00
|
|
|
case TFTPSRV:
|
2015-04-08 06:41:01 +00:00
|
|
|
if (net_ip.s_addr == 0) {
|
2011-05-11 03:59:56 +00:00
|
|
|
puts("*** ERROR: `ipaddr' not set\n");
|
2011-05-04 02:40:45 +00:00
|
|
|
return 1;
|
2004-04-18 17:39:38 +00:00
|
|
|
}
|
|
|
|
/* Fall through */
|
2002-10-31 22:12:35 +00:00
|
|
|
|
2010-09-30 16:25:48 +00:00
|
|
|
#ifdef CONFIG_CMD_RARP
|
2002-10-31 22:12:35 +00:00
|
|
|
case RARP:
|
2010-09-30 16:25:48 +00:00
|
|
|
#endif
|
2002-10-31 22:12:35 +00:00
|
|
|
case BOOTP:
|
2004-04-15 21:48:45 +00:00
|
|
|
case CDP:
|
2010-09-30 16:25:48 +00:00
|
|
|
case DHCP:
|
2012-05-23 08:00:12 +00:00
|
|
|
case LINKLOCAL:
|
2015-04-08 06:41:04 +00:00
|
|
|
if (memcmp(net_ethaddr, "\0\0\0\0\0\0", 6) == 0) {
|
2011-05-11 03:59:56 +00:00
|
|
|
int num = eth_get_dev_index();
|
2002-10-31 22:12:35 +00:00
|
|
|
|
2004-04-18 17:39:38 +00:00
|
|
|
switch (num) {
|
|
|
|
case -1:
|
2011-05-11 03:59:56 +00:00
|
|
|
puts("*** ERROR: No ethernet found.\n");
|
2011-05-04 02:40:45 +00:00
|
|
|
return 1;
|
2004-04-18 17:39:38 +00:00
|
|
|
case 0:
|
2011-05-11 03:59:56 +00:00
|
|
|
puts("*** ERROR: `ethaddr' not set\n");
|
2002-10-31 22:12:35 +00:00
|
|
|
break;
|
2004-04-18 17:39:38 +00:00
|
|
|
default:
|
2011-05-11 03:59:56 +00:00
|
|
|
printf("*** ERROR: `eth%daddr' not set\n",
|
2015-04-08 06:41:21 +00:00
|
|
|
num);
|
2002-10-31 22:12:35 +00:00
|
|
|
break;
|
2004-04-18 17:39:38 +00:00
|
|
|
}
|
2002-10-31 22:12:35 +00:00
|
|
|
|
2015-04-08 06:41:21 +00:00
|
|
|
net_start_again();
|
2011-05-04 02:40:45 +00:00
|
|
|
return 2;
|
2004-04-18 17:39:38 +00:00
|
|
|
}
|
|
|
|
/* Fall through */
|
|
|
|
default:
|
2011-05-04 02:40:45 +00:00
|
|
|
return 0;
|
2002-10-31 22:12:35 +00:00
|
|
|
}
|
2011-05-04 02:40:45 +00:00
|
|
|
return 0; /* OK */
|
2002-10-31 22:12:35 +00:00
|
|
|
}
|
|
|
|
/**********************************************************************/
|
|
|
|
|
2004-04-15 21:48:45 +00:00
|
|
|
int
|
2015-04-08 06:41:05 +00:00
|
|
|
net_eth_hdr_size(void)
|
2004-04-15 21:48:45 +00:00
|
|
|
{
|
|
|
|
ushort myvlanid;
|
2002-10-31 22:12:35 +00:00
|
|
|
|
2015-04-08 06:41:17 +00:00
|
|
|
myvlanid = ntohs(net_our_vlan);
|
2004-04-15 21:48:45 +00:00
|
|
|
if (myvlanid == (ushort)-1)
|
|
|
|
myvlanid = VLAN_NONE;
|
|
|
|
|
2011-05-11 03:59:54 +00:00
|
|
|
return ((myvlanid & VLAN_IDMASK) == VLAN_NONE) ? ETHER_HDR_SIZE :
|
|
|
|
VLAN_ETHER_HDR_SIZE;
|
2004-04-15 21:48:45 +00:00
|
|
|
}
|
|
|
|
|
2015-04-08 06:41:05 +00:00
|
|
|
int net_set_ether(uchar *xet, const uchar *dest_ethaddr, uint prot)
|
2002-10-31 22:12:35 +00:00
|
|
|
{
|
2012-05-23 07:58:06 +00:00
|
|
|
struct ethernet_hdr *et = (struct ethernet_hdr *)xet;
|
2004-04-15 21:48:45 +00:00
|
|
|
ushort myvlanid;
|
|
|
|
|
2015-04-08 06:41:17 +00:00
|
|
|
myvlanid = ntohs(net_our_vlan);
|
2004-04-15 21:48:45 +00:00
|
|
|
if (myvlanid == (ushort)-1)
|
|
|
|
myvlanid = VLAN_NONE;
|
2002-10-31 22:12:35 +00:00
|
|
|
|
2015-04-08 06:41:04 +00:00
|
|
|
memcpy(et->et_dest, dest_ethaddr, 6);
|
|
|
|
memcpy(et->et_src, net_ethaddr, 6);
|
2004-04-15 21:48:45 +00:00
|
|
|
if ((myvlanid & VLAN_IDMASK) == VLAN_NONE) {
|
2011-05-04 02:40:46 +00:00
|
|
|
et->et_protlen = htons(prot);
|
2004-04-15 21:48:45 +00:00
|
|
|
return ETHER_HDR_SIZE;
|
|
|
|
} else {
|
2012-05-23 07:58:07 +00:00
|
|
|
struct vlan_ethernet_hdr *vet =
|
|
|
|
(struct vlan_ethernet_hdr *)xet;
|
2002-10-31 22:12:35 +00:00
|
|
|
|
2004-04-15 21:48:45 +00:00
|
|
|
vet->vet_vlan_type = htons(PROT_VLAN);
|
|
|
|
vet->vet_tag = htons((0 << 5) | (myvlanid & VLAN_IDMASK));
|
|
|
|
vet->vet_type = htons(prot);
|
|
|
|
return VLAN_ETHER_HDR_SIZE;
|
|
|
|
}
|
|
|
|
}
|
2002-10-31 22:12:35 +00:00
|
|
|
|
2012-05-23 07:59:16 +00:00
|
|
|
int net_update_ether(struct ethernet_hdr *et, uchar *addr, uint prot)
|
|
|
|
{
|
|
|
|
ushort protlen;
|
|
|
|
|
|
|
|
memcpy(et->et_dest, addr, 6);
|
2015-04-08 06:41:04 +00:00
|
|
|
memcpy(et->et_src, net_ethaddr, 6);
|
2012-05-23 07:59:16 +00:00
|
|
|
protlen = ntohs(et->et_protlen);
|
|
|
|
if (protlen == PROT_VLAN) {
|
|
|
|
struct vlan_ethernet_hdr *vet =
|
|
|
|
(struct vlan_ethernet_hdr *)et;
|
|
|
|
vet->vet_type = htons(prot);
|
|
|
|
return VLAN_ETHER_HDR_SIZE;
|
|
|
|
} else if (protlen > 1514) {
|
|
|
|
et->et_protlen = htons(prot);
|
|
|
|
return ETHER_HDR_SIZE;
|
|
|
|
} else {
|
|
|
|
/* 802.2 + SNAP */
|
|
|
|
struct e802_hdr *et802 = (struct e802_hdr *)et;
|
|
|
|
et802->et_prot = htons(prot);
|
|
|
|
return E802_HDR_SIZE;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2015-04-08 06:41:01 +00:00
|
|
|
void net_set_ip_header(uchar *pkt, struct in_addr dest, struct in_addr source)
|
2002-10-31 22:12:35 +00:00
|
|
|
{
|
2012-05-23 07:59:07 +00:00
|
|
|
struct ip_udp_hdr *ip = (struct ip_udp_hdr *)pkt;
|
2002-10-31 22:12:35 +00:00
|
|
|
|
|
|
|
/*
|
2012-05-23 07:59:07 +00:00
|
|
|
* Construct an IP header.
|
2002-10-31 22:12:35 +00:00
|
|
|
*/
|
2011-05-11 03:59:54 +00:00
|
|
|
/* IP_HDR_SIZE / 4 (not including UDP) */
|
|
|
|
ip->ip_hl_v = 0x45;
|
2002-10-31 22:12:35 +00:00
|
|
|
ip->ip_tos = 0;
|
2012-05-23 07:59:07 +00:00
|
|
|
ip->ip_len = htons(IP_HDR_SIZE);
|
2015-04-08 06:41:21 +00:00
|
|
|
ip->ip_id = htons(net_ip_id++);
|
2008-12-01 22:26:20 +00:00
|
|
|
ip->ip_off = htons(IP_FLAGS_DFRAG); /* Don't fragment */
|
2002-10-31 22:12:35 +00:00
|
|
|
ip->ip_ttl = 255;
|
|
|
|
ip->ip_sum = 0;
|
2011-05-11 03:59:54 +00:00
|
|
|
/* already in network byte order */
|
2015-04-08 06:41:01 +00:00
|
|
|
net_copy_ip((void *)&ip->ip_src, &source);
|
2012-05-23 07:59:07 +00:00
|
|
|
/* already in network byte order */
|
2015-04-08 06:41:01 +00:00
|
|
|
net_copy_ip((void *)&ip->ip_dst, &dest);
|
2012-05-23 07:59:07 +00:00
|
|
|
}
|
|
|
|
|
2015-04-08 06:41:01 +00:00
|
|
|
void net_set_udp_header(uchar *pkt, struct in_addr dest, int dport, int sport,
|
2012-05-23 07:59:07 +00:00
|
|
|
int len)
|
|
|
|
{
|
|
|
|
struct ip_udp_hdr *ip = (struct ip_udp_hdr *)pkt;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* If the data is an odd number of bytes, zero the
|
|
|
|
* byte after the last byte so that the checksum
|
|
|
|
* will work.
|
|
|
|
*/
|
|
|
|
if (len & 1)
|
|
|
|
pkt[IP_UDP_HDR_SIZE + len] = 0;
|
|
|
|
|
2015-04-08 06:41:01 +00:00
|
|
|
net_set_ip_header(pkt, dest, net_ip);
|
2012-05-23 07:59:07 +00:00
|
|
|
ip->ip_len = htons(IP_UDP_HDR_SIZE + len);
|
|
|
|
ip->ip_p = IPPROTO_UDP;
|
2015-01-20 05:16:08 +00:00
|
|
|
ip->ip_sum = compute_ip_checksum(ip, IP_HDR_SIZE);
|
2012-05-23 07:59:07 +00:00
|
|
|
|
2002-10-31 22:12:35 +00:00
|
|
|
ip->udp_src = htons(sport);
|
|
|
|
ip->udp_dst = htons(dport);
|
2012-05-23 07:58:04 +00:00
|
|
|
ip->udp_len = htons(UDP_HDR_SIZE + len);
|
2002-10-31 22:12:35 +00:00
|
|
|
ip->udp_xsum = 0;
|
|
|
|
}
|
|
|
|
|
2011-05-11 03:59:56 +00:00
|
|
|
void copy_filename(char *dst, const char *src, int size)
|
2002-10-31 22:12:35 +00:00
|
|
|
{
|
|
|
|
if (*src && (*src == '"')) {
|
|
|
|
++src;
|
|
|
|
--size;
|
|
|
|
}
|
|
|
|
|
2011-05-04 02:40:43 +00:00
|
|
|
while ((--size > 0) && *src && (*src != '"'))
|
2002-10-31 22:12:35 +00:00
|
|
|
*dst++ = *src++;
|
|
|
|
*dst = '\0';
|
|
|
|
}
|
|
|
|
|
2011-05-11 03:59:54 +00:00
|
|
|
#if defined(CONFIG_CMD_NFS) || \
|
|
|
|
defined(CONFIG_CMD_SNTP) || \
|
|
|
|
defined(CONFIG_CMD_DNS)
|
2009-07-20 18:53:54 +00:00
|
|
|
/*
|
2010-03-08 19:07:00 +00:00
|
|
|
* make port a little random (1024-17407)
|
|
|
|
* This keeps the math somewhat trivial to compute, and seems to work with
|
|
|
|
* all supported protocols/clients/servers
|
2009-07-20 18:53:54 +00:00
|
|
|
*/
|
|
|
|
unsigned int random_port(void)
|
|
|
|
{
|
2010-03-08 19:07:00 +00:00
|
|
|
return 1024 + (get_timer(0) % 0x4000);
|
2009-07-20 18:53:54 +00:00
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2015-04-08 06:41:01 +00:00
|
|
|
void ip_to_string(struct in_addr x, char *s)
|
2002-10-31 22:12:35 +00:00
|
|
|
{
|
2015-04-08 06:41:01 +00:00
|
|
|
x.s_addr = ntohl(x.s_addr);
|
2011-05-11 03:59:56 +00:00
|
|
|
sprintf(s, "%d.%d.%d.%d",
|
2015-04-08 06:41:01 +00:00
|
|
|
(int) ((x.s_addr >> 24) & 0xff),
|
|
|
|
(int) ((x.s_addr >> 16) & 0xff),
|
|
|
|
(int) ((x.s_addr >> 8) & 0xff),
|
|
|
|
(int) ((x.s_addr >> 0) & 0xff)
|
2004-04-18 17:39:38 +00:00
|
|
|
);
|
2002-10-31 22:12:35 +00:00
|
|
|
}
|
|
|
|
|
2015-04-08 06:41:17 +00:00
|
|
|
void vlan_to_string(ushort x, char *s)
|
2004-04-15 21:48:45 +00:00
|
|
|
{
|
|
|
|
x = ntohs(x);
|
|
|
|
|
|
|
|
if (x == (ushort)-1)
|
|
|
|
x = VLAN_NONE;
|
|
|
|
|
|
|
|
if (x == VLAN_NONE)
|
|
|
|
strcpy(s, "none");
|
|
|
|
else
|
|
|
|
sprintf(s, "%d", x & VLAN_IDMASK);
|
|
|
|
}
|
|
|
|
|
2015-04-08 06:41:17 +00:00
|
|
|
ushort string_to_vlan(const char *s)
|
2004-04-15 21:48:45 +00:00
|
|
|
{
|
|
|
|
ushort id;
|
|
|
|
|
|
|
|
if (s == NULL)
|
2004-04-25 13:18:40 +00:00
|
|
|
return htons(VLAN_NONE);
|
2004-04-15 21:48:45 +00:00
|
|
|
|
|
|
|
if (*s < '0' || *s > '9')
|
|
|
|
id = VLAN_NONE;
|
|
|
|
else
|
|
|
|
id = (ushort)simple_strtoul(s, NULL, 10);
|
|
|
|
|
2004-04-25 13:18:40 +00:00
|
|
|
return htons(id);
|
2004-04-15 21:48:45 +00:00
|
|
|
}
|
|
|
|
|
2017-08-03 18:22:15 +00:00
|
|
|
ushort env_get_vlan(char *var)
|
2004-04-15 21:48:45 +00:00
|
|
|
{
|
2017-08-03 18:22:12 +00:00
|
|
|
return string_to_vlan(env_get(var));
|
2004-04-15 21:48:45 +00:00
|
|
|
}
|