diff options
Diffstat (limited to 'package/uboot-ifxmips/files/net/net_danube.c')
| -rw-r--r-- | package/uboot-ifxmips/files/net/net_danube.c | 1754 |
1 files changed, 0 insertions, 1754 deletions
diff --git a/package/uboot-ifxmips/files/net/net_danube.c b/package/uboot-ifxmips/files/net/net_danube.c deleted file mode 100644 index 1d1c98f3c2..0000000000 --- a/package/uboot-ifxmips/files/net/net_danube.c +++ /dev/null @@ -1,1754 +0,0 @@ -/* - * Copied from Linux Monitor (LiMon) - Networking. - * - * Copyright 1994 - 2000 Neil Russell. - * (See License) - * Copyright 2000 Roland Borde - * Copyright 2000 Paolo Scaffardi - * Copyright 2000-2002 Wolfgang Denk, wd@denx.de - */ - -/* - * General Desription: - * - * The user interface supports commands for BOOTP, RARP, and TFTP. - * Also, we support ARP internally. Depending on available data, - * these interact as follows: - * - * BOOTP: - * - * Prerequisites: - own ethernet address - * We want: - own IP address - * - TFTP server IP address - * - name of bootfile - * Next step: ARP - * - * RARP: - * - * Prerequisites: - own ethernet address - * We want: - own IP address - * - TFTP server IP address - * Next step: ARP - * - * ARP: - * - * Prerequisites: - own ethernet address - * - own IP address - * - TFTP server IP address - * We want: - TFTP server ethernet address - * Next step: TFTP - * - * DHCP: - * - * Prerequisites: - own ethernet address - * We want: - IP, Netmask, ServerIP, Gateway IP - * - bootfilename, lease time - * Next step: - TFTP - * - * TFTP: - * - * Prerequisites: - own ethernet address - * - own IP address - * - TFTP server IP address - * - TFTP server ethernet address - * - name of bootfile (if unknown, we use a default name - * derived from our own IP address) - * We want: - load the boot file - * Next step: none - * - * NFS: - * - * Prerequisites: - own ethernet address - * - own IP address - * - name of bootfile (if unknown, we use a default name - * derived from our own IP address) - * We want: - load the boot file - * Next step: none - * - * SNTP: - * - * Prerequisites: - own ethernet address - * - own IP address - * We want: - network time - * Next step: none - */ - - -#include <common.h> -#include <watchdog.h> -#include <command.h> -#include <net.h> -#include "bootp.h" -#include "tftp.h" -#include "rarp.h" -#include "nfs.h" -#ifdef CONFIG_STATUS_LED -#include <status_led.h> -#include <miiphy.h> -#endif -#if (CONFIG_COMMANDS & CFG_CMD_SNTP) -#include "sntp.h" -#endif - -#if (CONFIG_COMMANDS & CFG_CMD_NET) - -DECLARE_GLOBAL_DATA_PTR; - -#define ARP_TIMEOUT 5 /* Seconds before trying ARP again */ -#ifndef CONFIG_NET_RETRY_COUNT -# define ARP_TIMEOUT_COUNT 5 /* # of timeouts before giving up */ -#else -# define ARP_TIMEOUT_COUNT (CONFIG_NET_RETRY_COUNT) -#endif - -#if 0 -#define ET_DEBUG -#endif - -/** BOOTP EXTENTIONS **/ - -IPaddr_t NetOurSubnetMask=0; /* Our subnet mask (0=unknown) */ -IPaddr_t NetOurGatewayIP=0; /* Our gateways IP address */ -IPaddr_t NetOurDNSIP=0; /* Our DNS IP address */ -#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_DNS2) -IPaddr_t NetOurDNS2IP=0; /* Our 2nd DNS IP address */ -#endif -char NetOurNISDomain[32]={0,}; /* Our NIS domain */ -char NetOurHostName[32]={0,}; /* Our hostname */ -char NetOurRootPath[64]={0,}; /* Our bootpath */ -ushort NetBootFileSize=0; /* Our bootfile size in blocks */ - -/** END OF BOOTP EXTENTIONS **/ - -ulong NetBootFileXferSize; /* The actual transferred size of the bootfile (in bytes) */ -uchar NetOurEther[6]; /* Our ethernet address */ -uchar NetServerEther[6] = /* Boot server enet address */ - { 0, 0, 0, 0, 0, 0 }; -IPaddr_t NetOurIP; /* Our IP addr (0 = unknown) */ -IPaddr_t NetServerIP; /* Our IP addr (0 = unknown) */ -volatile uchar *NetRxPkt; /* Current receive packet */ -int NetRxPktLen; /* Current rx packet length */ -unsigned NetIPID; /* IP packet ID */ -uchar NetBcastAddr[6] = /* Ethernet bcast address */ - { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; -uchar NetEtherNullAddr[6] = - { 0, 0, 0, 0, 0, 0 }; -#if (CONFIG_COMMANDS & CFG_CMD_CDP) -uchar NetCDPAddr[6] = /* Ethernet bcast address */ - { 0x01, 0x00, 0x0c, 0xcc, 0xcc, 0xcc }; -#endif -int NetState; /* Network loop state */ -#ifdef CONFIG_NET_MULTI -int NetRestartWrap = 0; /* Tried all network devices */ -static int NetRestarted = 0; /* Network loop restarted */ -static int NetDevExists = 0; /* At least one device configured */ -#endif - -/* XXX in both little & big endian machines 0xFFFF == ntohs(-1) */ -ushort NetOurVLAN = 0xFFFF; /* default is without VLAN */ -ushort NetOurNativeVLAN = 0xFFFF; /* ditto */ - -char BootFile[128]; /* Boot File name */ - -#if (CONFIG_COMMANDS & CFG_CMD_PING) -IPaddr_t NetPingIP; /* the ip address to ping */ - -static void PingStart(void); -#endif - -#if (CONFIG_COMMANDS & CFG_CMD_CDP) -static void CDPStart(void); -#endif - -#if (CONFIG_COMMANDS & CFG_CMD_SNTP) -IPaddr_t NetNtpServerIP; /* NTP server IP address */ -int NetTimeOffset=0; /* offset time from UTC */ -#endif - -#ifdef CONFIG_NETCONSOLE -void NcStart(void); -int nc_input_packet(uchar *pkt, unsigned dest, unsigned src, unsigned len); -#endif - -volatile uchar PktBuf[(PKTBUFSRX+1) * PKTSIZE_ALIGN + PKTALIGN]; - -volatile uchar *NetRxPackets[PKTBUFSRX]; /* Receive packets */ - -static rxhand_f *packetHandler; /* Current RX packet handler */ -static thand_f *timeHandler; /* Current timeout handler */ -static ulong timeStart; /* Time base value */ -static ulong timeDelta; /* Current timeout value */ -volatile uchar *NetTxPacket = 0; /* THE transmit packet */ - -static int net_check_prereq (proto_t protocol); - -/**********************************************************************/ - -IPaddr_t NetArpWaitPacketIP; -IPaddr_t NetArpWaitReplyIP; -uchar *NetArpWaitPacketMAC; /* MAC address of waiting packet's destination */ -uchar *NetArpWaitTxPacket; /* THE transmit packet */ -int NetArpWaitTxPacketSize; -uchar NetArpWaitPacketBuf[PKTSIZE_ALIGN + PKTALIGN]; -ulong NetArpWaitTimerStart; -int NetArpWaitTry; - -void ArpRequest (void) -{ - int i; - volatile uchar *pkt; - ARP_t *arp; - -#ifdef ET_DEBUG - printf ("ARP broadcast %d\n", NetArpWaitTry); -#endif - pkt = NetTxPacket; - - pkt += NetSetEther (pkt, NetBcastAddr, PROT_ARP); - - arp = (ARP_t *) pkt; - - arp->ar_hrd = htons (ARP_ETHER); - arp->ar_pro = htons (PROT_IP); - arp->ar_hln = 6; - arp->ar_pln = 4; - arp->ar_op = htons (ARPOP_REQUEST); - - memcpy (&arp->ar_data[0], NetOurEther, 6); /* source ET addr */ - NetWriteIP ((uchar *) & arp->ar_data[6], NetOurIP); /* source IP addr */ - for (i = 10; i < 16; ++i) { - arp->ar_data[i] = 0; /* dest ET addr = 0 */ - } - - if ((NetArpWaitPacketIP & NetOurSubnetMask) != - (NetOurIP & NetOurSubnetMask)) { - if (NetOurGatewayIP == 0) { - puts ("## Warning: gatewayip needed but not set\n"); - NetArpWaitReplyIP = NetArpWaitPacketIP; - } else { - NetArpWaitReplyIP = NetOurGatewayIP; - } - } else { - NetArpWaitReplyIP = NetArpWaitPacketIP; - } - - NetWriteIP ((uchar *) & arp->ar_data[16], NetArpWaitReplyIP); - (void) eth_send (NetTxPacket, (pkt - NetTxPacket) + ARP_HDR_SIZE); -} - -void ArpTimeoutCheck(void) -{ - ulong t; - - if (!NetArpWaitPacketIP) - return; - - t = get_timer(0); - - /* check for arp timeout */ - if ((t - NetArpWaitTimerStart) > ARP_TIMEOUT * CFG_HZ) { - NetArpWaitTry++; - - if (NetArpWaitTry >= ARP_TIMEOUT_COUNT) { - puts ("\nARP Retry count exceeded; starting again\n"); - NetArpWaitTry = 0; - NetStartAgain(); - } else { - NetArpWaitTimerStart = t; - ArpRequest(); - } - } -} - -/**********************************************************************/ -/* - * Main network processing loop. - */ - -int -NetLoop(proto_t protocol) -{ - bd_t *bd = gd->bd; - -#ifdef CONFIG_NET_MULTI - NetRestarted = 0; - NetDevExists = 0; -#endif - - /* XXX problem with bss workaround */ - NetArpWaitPacketMAC = NULL; - NetArpWaitTxPacket = NULL; - NetArpWaitPacketIP = 0; - NetArpWaitReplyIP = 0; - NetArpWaitTxPacket = NULL; - NetTxPacket = NULL; - - if (!NetTxPacket) { - int i; - /* - * Setup packet buffers, aligned correctly. - */ - NetTxPacket = &PktBuf[0] + (PKTALIGN - 1); - NetTxPacket -= (ulong)NetTxPacket % PKTALIGN; - for (i = 0; i < PKTBUFSRX; i++) { - NetRxPackets[i] = NetTxPacket + (i+1)*PKTSIZE_ALIGN; - } - } - - if (!NetArpWaitTxPacket) { - NetArpWaitTxPacket = &NetArpWaitPacketBuf[0] + (PKTALIGN - 1); - NetArpWaitTxPacket -= (ulong)NetArpWaitTxPacket % PKTALIGN; - NetArpWaitTxPacketSize = 0; - } - - eth_halt(); -#ifdef CONFIG_NET_MULTI - eth_set_current(); -#endif - if (eth_init(bd) < 0) { - eth_halt(); - return(-1); - } - -restart: -#ifdef CONFIG_NET_MULTI - memcpy (NetOurEther, eth_get_dev()->enetaddr, 6); -#else - memcpy (NetOurEther, bd->bi_enetaddr, 6); -#endif - - NetState = NETLOOP_CONTINUE; - - /* - * 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. - */ - - switch (protocol) { -#if (CONFIG_COMMANDS & CFG_CMD_NFS) - case NFS: -#endif -#if (CONFIG_COMMANDS & CFG_CMD_PING) - case PING: -#endif -#if (CONFIG_COMMANDS & CFG_CMD_SNTP) - case SNTP: -#endif - case NETCONS: - case TFTP: - NetCopyIP(&NetOurIP, &bd->bi_ip_addr); - NetOurGatewayIP = getenv_IPaddr ("gatewayip"); - NetOurSubnetMask= getenv_IPaddr ("netmask"); - NetOurVLAN = getenv_VLAN("vlan"); - NetOurNativeVLAN = getenv_VLAN("nvlan"); - - switch (protocol) { -#if (CONFIG_COMMANDS & CFG_CMD_NFS) - case NFS: -#endif - case NETCONS: - case TFTP: - NetServerIP = getenv_IPaddr ("serverip"); - break; -#if (CONFIG_COMMANDS & CFG_CMD_PING) - case PING: - /* nothing */ - break; -#endif -#if (CONFIG_COMMANDS & CFG_CMD_SNTP) - case SNTP: - /* nothing */ - break; -#endif - default: - break; - } - - break; - case BOOTP: - case RARP: - /* - * initialize our IP addr to 0 in order to accept ANY - * IP addr assigned to us by the BOOTP / RARP server - */ - NetOurIP = 0; - NetServerIP = getenv_IPaddr ("serverip"); - NetOurVLAN = getenv_VLAN("vlan"); /* VLANs must be read */ - NetOurNativeVLAN = getenv_VLAN("nvlan"); - case CDP: - NetOurVLAN = getenv_VLAN("vlan"); /* VLANs must be read */ - NetOurNativeVLAN = getenv_VLAN("nvlan"); - break; - default: - break; - } - - switch (net_check_prereq (protocol)) { - case 1: - /* network not configured */ - eth_halt(); - return (-1); - -#ifdef CONFIG_NET_MULTI - case 2: - /* network device not configured */ - break; -#endif /* CONFIG_NET_MULTI */ - - case 0: -#ifdef CONFIG_NET_MULTI - NetDevExists = 1; -#endif - switch (protocol) { - case TFTP: - /* always use ARP to get server ethernet address */ - TftpStart(); - break; - -#if (CONFIG_COMMANDS & CFG_CMD_DHCP) - case DHCP: - /* Start with a clean slate... */ - BootpTry = 0; - NetOurIP = 0; - NetServerIP = getenv_IPaddr ("serverip"); - DhcpRequest(); /* Basically same as BOOTP */ - break; -#endif /* CFG_CMD_DHCP */ - - case BOOTP: - BootpTry = 0; - BootpRequest (); - break; - - case RARP: - RarpTry = 0; - RarpRequest (); - break; -#if (CONFIG_COMMANDS & CFG_CMD_PING) - case PING: - PingStart(); - break; -#endif -#if (CONFIG_COMMANDS & CFG_CMD_NFS) - case NFS: - NfsStart(); - break; -#endif -#if (CONFIG_COMMANDS & CFG_CMD_CDP) - case CDP: - CDPStart(); - break; -#endif -#ifdef CONFIG_NETCONSOLE - case NETCONS: - NcStart(); - break; -#endif -#if (CONFIG_COMMANDS & CFG_CMD_SNTP) - case SNTP: - SntpStart(); - break; -#endif - default: - break; - } - - NetBootFileXferSize = 0; - break; - } - -#if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII) -#if defined(CFG_FAULT_ECHO_LINK_DOWN) && defined(CONFIG_STATUS_LED) && defined(STATUS_LED_RED) - /* - * Echo the inverted link state to the fault LED. - */ - if(miiphy_link(eth_get_dev()->name, CFG_FAULT_MII_ADDR)) { - status_led_set (STATUS_LED_RED, STATUS_LED_OFF); - } else { - status_led_set (STATUS_LED_RED, STATUS_LED_ON); - } -#endif /* CFG_FAULT_ECHO_LINK_DOWN, ... */ -#endif /* CONFIG_MII, ... */ - - /* - * Main packet reception loop. Loop receiving packets until - * someone sets `NetState' to a state that terminates. - */ - for (;;) { - WATCHDOG_RESET(); -#ifdef CONFIG_SHOW_ACTIVITY - { - extern void show_activity(int arg); - show_activity(1); - } -#endif - /* - * Check the ethernet for a new packet. The ethernet - * receive routine will process it. - */ - eth_rx(); - - /* - * Abort if ctrl-c was pressed. - */ - if (ctrlc()) { - eth_halt(); - puts ("\nAbort\n"); - return (-1); - } - - ArpTimeoutCheck(); - - /* - * Check for a timeout, and run the timeout handler - * if we have one. - */ - if (timeHandler && ((get_timer(0) - timeStart) > timeDelta)) { - thand_f *x; - -#if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII) -# if defined(CFG_FAULT_ECHO_LINK_DOWN) && \ - defined(CONFIG_STATUS_LED) && \ - defined(STATUS_LED_RED) - /* - * Echo the inverted link state to the fault LED. - */ - if(miiphy_link(eth_get_dev()->name, CFG_FAULT_MII_ADDR)) { - status_led_set (STATUS_LED_RED, STATUS_LED_OFF); - } else { - status_led_set (STATUS_LED_RED, STATUS_LED_ON); - } -# endif /* CFG_FAULT_ECHO_LINK_DOWN, ... */ -#endif /* CONFIG_MII, ... */ - x = timeHandler; - timeHandler = (thand_f *)0; - (*x)(); - } - - - switch (NetState) { - - case NETLOOP_RESTART: -#ifdef CONFIG_NET_MULTI - NetRestarted = 1; -#endif - goto restart; - - case NETLOOP_SUCCESS: - if (NetBootFileXferSize > 0) { - char buf[10]; - printf("Bytes transferred = %ld (%lx hex)\n", - NetBootFileXferSize, - NetBootFileXferSize); - sprintf(buf, "%lx", NetBootFileXferSize); - setenv("filesize", buf); - - sprintf(buf, "%lX", (unsigned long)load_addr); - setenv("fileaddr", buf); - } - eth_halt(); - return NetBootFileXferSize; - - case NETLOOP_FAIL: - return (-1); - } - } -} - -/**********************************************************************/ - -static void -startAgainTimeout(void) -{ - NetState = NETLOOP_RESTART; -} - -static void -startAgainHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len) -{ - /* Totally ignore the packet */ -} - -void NetStartAgain (void) -{ - char *nretry; - int noretry = 0, once = 0; - - if ((nretry = getenv ("netretry")) != NULL) { - noretry = (strcmp (nretry, "no") == 0); - once = (strcmp (nretry, "once") == 0); - } - if (noretry) { - eth_halt (); - NetState = NETLOOP_FAIL; - return; - } -#ifndef CONFIG_NET_MULTI - NetSetTimeout (10 * CFG_HZ, startAgainTimeout); - NetSetHandler (startAgainHandler); -#else /* !CONFIG_NET_MULTI*/ - eth_halt (); - eth_try_another (!NetRestarted); - eth_init (gd->bd); - if (NetRestartWrap) { - NetRestartWrap = 0; - if (NetDevExists && !once) { - NetSetTimeout (10 * CFG_HZ, startAgainTimeout); - NetSetHandler (startAgainHandler); - } else { - NetState = NETLOOP_FAIL; - } - } else { - NetState = NETLOOP_RESTART; - } -#endif /* CONFIG_NET_MULTI */ -} - -/**********************************************************************/ -/* - * Miscelaneous bits. - */ - -void -NetSetHandler(rxhand_f * f) -{ - packetHandler = f; -} - - -void -NetSetTimeout(ulong iv, thand_f * f) -{ - if (iv == 0) { - timeHandler = (thand_f *)0; - } else { - timeHandler = f; - timeStart = get_timer(0); - timeDelta = iv; - } -} - - -void -NetSendPacket(volatile uchar * pkt, int len) -{ - (void) eth_send(pkt, len); -} - -int -NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport, int sport, int len) -{ - uchar *pkt; - - /* convert to new style broadcast */ - if (dest == 0) - dest = 0xFFFFFFFF; - - /* if broadcast, make the ether address a broadcast and don't do ARP */ - if (dest == 0xFFFFFFFF) - ether = NetBcastAddr; - - /* if MAC address was not discovered yet, save the packet and do an ARP request */ - if (memcmp(ether, NetEtherNullAddr, 6) == 0) { - -#ifdef ET_DEBUG - printf("sending ARP for %08lx\n", dest); -#endif - NetArpWaitPacketIP = dest; - NetArpWaitPacketMAC = ether; - - pkt = NetArpWaitTxPacket; - pkt += NetSetEther (pkt, NetArpWaitPacketMAC, PROT_IP); - - NetSetIP (pkt, dest, dport, sport, len); - memcpy(pkt + IP_HDR_SIZE, (uchar *)NetTxPacket + (pkt - (uchar *)NetArpWaitTxPacket) + IP_HDR_SIZE, len); - - /* size of the waiting packet */ - NetArpWaitTxPacketSize = (pkt - NetArpWaitTxPacket) + IP_HDR_SIZE + len; - - /* and do the ARP request */ - NetArpWaitTry = 1; - NetArpWaitTimerStart = get_timer(0); - ArpRequest(); - return 1; /* waiting */ - } - -#ifdef ET_DEBUG - printf("sending UDP to %08lx/%02x:%02x:%02x:%02x:%02x:%02x\n", - dest, ether[0], ether[1], ether[2], ether[3], ether[4], ether[5]); -#endif - - pkt = (uchar *)NetTxPacket; - pkt += NetSetEther (pkt, ether, PROT_IP); - NetSetIP (pkt, dest, dport, sport, len); - (void) eth_send(NetTxPacket, (pkt - NetTxPacket) + IP_HDR_SIZE + len); - - return 0; /* transmitted */ -} - -#if (CONFIG_COMMANDS & CFG_CMD_PING) -static ushort PingSeqNo; - -int PingSend(void) -{ - static uchar mac[6]; - volatile IP_t *ip; - volatile ushort *s; - uchar *pkt; - - /* XXX always send arp request */ - - memcpy(mac, NetEtherNullAddr, 6); - -#ifdef ET_DEBUG - printf("sending ARP for %08lx\n", NetPingIP); -#endif - - NetArpWaitPacketIP = NetPingIP; - NetArpWaitPacketMAC = mac; - - pkt = NetArpWaitTxPacket; - pkt += NetSetEther(pkt, mac, PROT_IP); - - ip = (volatile IP_t *)pkt; - - /* - * Construct an IP and ICMP header. (need to set no fragment bit - XXX) - */ - ip->ip_hl_v = 0x45; /* IP_HDR_SIZE / 4 (not including UDP) */ - ip->ip_tos = 0; - ip->ip_len = htons(IP_HDR_SIZE_NO_UDP + 8); - ip->ip_id = htons(NetIPID++); - ip->ip_off = htons(0x4000); /* No fragmentation */ - ip->ip_ttl = 255; - ip->ip_p = 0x01; /* ICMP */ - ip->ip_sum = 0; - NetCopyIP((void*)&ip->ip_src, &NetOurIP); /* already in network byte order */ - NetCopyIP((void*)&ip->ip_dst, &NetPingIP); /* - "" - */ - ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2); - - s = &ip->udp_src; /* XXX ICMP starts here */ - s[0] = htons(0x0800); /* echo-request, code */ - s[1] = 0; /* checksum */ - s[2] = 0; /* identifier */ - s[3] = htons(PingSeqNo++); /* sequence number */ - s[1] = ~NetCksum((uchar *)s, 8/2); - - /* size of the waiting packet */ - NetArpWaitTxPacketSize = (pkt - NetArpWaitTxPacket) + IP_HDR_SIZE_NO_UDP + 8; - - /* and do the ARP request */ - NetArpWaitTry = 1; - NetArpWaitTimerStart = get_timer(0); - ArpRequest(); - return 1; /* waiting */ -} - -static void -PingTimeout (void) -{ - eth_halt(); - NetState = NETLOOP_FAIL; /* we did not get the reply */ -} - -static void -PingHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len) -{ - IPaddr_t tmp; - volatile IP_t *ip = (volatile IP_t *)pkt; - - tmp = NetReadIP((void *)&ip->ip_src); - if (tmp != NetPingIP) - return; - - NetState = NETLOOP_SUCCESS; -} - -static void PingStart(void) -{ -#if defined(CONFIG_NET_MULTI) - printf ("Using %s device\n", eth_get_name()); -#endif /* CONFIG_NET_MULTI */ - NetSetTimeout (10 * CFG_HZ, PingTimeout); - NetSetHandler (PingHandler); - - PingSend(); -} -#endif /* CFG_CMD_PING */ - -#if (CONFIG_COMMANDS & CFG_CMD_CDP) - -#define CDP_DEVICE_ID_TLV 0x0001 -#define CDP_ADDRESS_TLV 0x0002 -#define CDP_PORT_ID_TLV 0x0003 -#define CDP_CAPABILITIES_TLV 0x0004 -#define CDP_VERSION_TLV 0x0005 -#define CDP_PLATFORM_TLV 0x0006 -#define CDP_NATIVE_VLAN_TLV 0x000a -#define CDP_APPLIANCE_VLAN_TLV 0x000e -#define CDP_TRIGGER_TLV 0x000f -#define CDP_POWER_CONSUMPTION_TLV 0x0010 -#define CDP_SYSNAME_TLV 0x0014 -#define CDP_SYSOBJECT_TLV 0x0015 -#define CDP_MANAGEMENT_ADDRESS_TLV 0x0016 - -#define CDP_TIMEOUT (CFG_HZ/4) /* one packet every 250ms */ - -static int CDPSeq; -static int CDPOK; - -ushort CDPNativeVLAN; -ushort CDPApplianceVLAN; - -static const uchar CDP_SNAP_hdr[8] = { 0xAA, 0xAA, 0x03, 0x00, 0x00, 0x0C, 0x20, 0x00 }; - -static ushort CDP_compute_csum(const uchar *buff, ushort len) -{ - ushort csum; - int odd; - ulong result = 0; - ushort leftover; - ushort *p; - - if (len > 0) { - odd = 1 & (ulong)buff; - if (odd) { - result = *buff << 8; - len--; - buff++; - } - while (len > 1) { - p = (ushort *)buff; - result += *p++; - buff = (uchar *)p; - if (result & 0x80000000) - result = (result & 0xFFFF) + (result >> 16); - len -= 2; - } - if (len) { - leftover = (signed short)(*(const signed char *)buff); - /* CISCO SUCKS big time! (and blows too): - * CDP uses the IP checksum algorithm with a twist; - * for the last byte it *sign* extends and sums. - */ - result = (result & 0xffff0000) | ((result + leftover) & 0x0000ffff); - } - while (result >> 16) - result = (result & 0xFFFF) + (result >> 16); - - if (odd) - result = ((result >> 8) & 0xff) | ((result & 0xff) << 8); - } - - /* add up 16-bit and 17-bit words for 17+c bits */ - result = (result & 0xffff) + (result >> 16); - /* add up 16-bit and 2-bit for 16+c bit */ - result = (result & 0xffff) + (result >> 16); - /* add up carry.. */ - result = (result & 0xffff) + (result >> 16); - - /* negate */ - csum = ~(ushort)result; - - /* run time endian detection */ - if (csum != htons(csum)) /* little endian */ - csum = htons(csum); - - return csum; -} - -int CDPSendTrigger(void) -{ - volatile uchar *pkt; - volatile ushort *s; - volatile ushort *cp; - Ethernet_t *et; - int len; - ushort chksum; -#if defined(CONFIG_CDP_DEVICE_ID) || defined(CONFIG_CDP_PORT_ID) || \ - defined(CONFIG_CDP_VERSION) || defined(CONFIG_CDP_PLATFORM) - char buf[32]; -#endif - - pkt = NetTxPacket; - et = (Ethernet_t *)pkt; - - /* NOTE: trigger sent not on any VLAN */ - - /* form ethernet header */ - memcpy(et->et_dest, NetCDPAddr, 6); - memcpy(et->et_src, NetOurEther, 6); - - pkt += ETHER_HDR_SIZE; - - /* SNAP header */ - memcpy((uchar *)pkt, CDP_SNAP_hdr, sizeof(CDP_SNAP_hdr)); - pkt += sizeof(CDP_SNAP_hdr); - - /* CDP header */ - *pkt++ = 0x02; /* CDP version 2 */ - *pkt++ = 180; /* TTL */ - s = (volatile ushort *)pkt; - cp = s; - *s++ = htons(0); /* checksum (0 for later calculation) */ - - /* CDP fields */ -#ifdef CONFIG_CDP_DEVICE_ID - *s++ = htons(CDP_DEVICE_ID_TLV); - *s++ = htons(CONFIG_CDP_DEVICE_ID); - memset(buf, 0, sizeof(buf)); - sprintf(buf, CONFIG_CDP_DEVICE_ID_PREFIX "%02X%02X%02X%02X%02X%02X", - NetOurEther[0] & 0xff, NetOurEther[1] & 0xff, - NetOurEther[2] & 0xff, NetOurEther[3] & 0xff, - NetOurEther[4] & 0xff, NetOurEther[5] & 0xff); - memcpy((uchar *)s, buf, 16); - s += 16 / 2; -#endif - -#ifdef CONFIG_CDP_PORT_ID - *s++ = htons(CDP_PORT_ID_TLV); - memset(buf, 0, sizeof(buf)); - sprintf(buf, CONFIG_CDP_PORT_ID, eth_get_dev_index()); - len = strlen(buf); - if (len & 1) /* make it even */ - len++; - *s++ = htons(len + 4); - memcpy((uchar *)s, buf, len); - s += len / 2; -#endif - -#ifdef CONFIG_CDP_CAPABILITIES - *s++ = htons(CDP_CAPABILITIES_TLV); - *s++ = htons(8); - *(ulong *)s = htonl(CONFIG_CDP_CAPABILITIES); - s += 2; -#endif - -#ifdef CONFIG_CDP_VERSION - *s++ = htons(CDP_VERSION_TLV); - memset(buf, 0, sizeof(buf)); - strcpy(buf, CONFIG_CDP_VERSION); - len = strlen(buf); - if (len & 1) /* make it even */ - len++; - *s++ = htons(len + 4); - memcpy((uchar *)s, buf, len); - s += len / 2; -#endif - -#ifdef CONFIG_CDP_PLATFORM - *s++ = htons(CDP_PLATFORM_TLV); - memset(buf, 0, sizeof(buf)); - strcpy(buf, CONFIG_CDP_PLATFORM); - len = strlen(buf); - if (len & 1) /* make it even */ - len++; - *s++ = htons(len + 4); - memcpy((uchar *)s, buf, len); - s += len / 2; -#endif - -#ifdef CONFIG_CDP_TRIGGER - *s++ = htons(CDP_TRIGGER_TLV); - *s++ = htons(8); - *(ulong *)s = htonl(CONFIG_CDP_TRIGGER); - s += 2; -#endif - -#ifdef CONFIG_CDP_POWER_CONSUMPTION - *s++ = htons(CDP_POWER_CONSUMPTION_TLV); - *s++ = htons(6); - *s++ = htons(CONFIG_CDP_POWER_CONSUMPTION); -#endif - - /* length of ethernet packet */ - len = (uchar *)s - ((uchar *)NetTxPacket + ETHER_HDR_SIZE); - et->et_protlen = htons(len); - - len = ETHER_HDR_SIZE + sizeof(CDP_SNAP_hdr); - chksum = CDP_compute_csum((uchar *)NetTxPacket + len, (uchar *)s - (NetTxPacket + len)); - if (chksum == 0) - chksum = 0xFFFF; - *cp = htons(chksum); - - (void) eth_send(NetTxPacket, (uchar *)s - NetTxPacket); - return 0; -} - -static void -CDPTimeout (void) -{ - CDPSeq++; - - if (CDPSeq < 3) { - NetSetTimeout (CDP_TIMEOUT, CDPTimeout); - CDPSendTrigger(); - return; - } - - /* if not OK try again */ - if (!CDPOK) - NetStartAgain(); - else - NetState = NETLOOP_SUCCESS; -} - -static void -CDPDummyHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len) -{ - /* nothing */ -} - -static void -CDPHandler(const uchar * pkt, unsigned len) -{ - const uchar *t; - const ushort *ss; - ushort type, tlen; - uchar applid; - ushort vlan, nvlan; - - /* minimum size? */ - if (len < sizeof(CDP_SNAP_hdr) + 4) - goto pkt_short; - - /* check for valid CDP SNAP header */ - if (memcmp(pkt, CDP_SNAP_hdr, sizeof(CDP_SNAP_hdr)) != 0) - return; - - pkt += sizeof(CDP_SNAP_hdr); - len -= sizeof(CDP_SNAP_hdr); - - /* Version of CDP protocol must be >= 2 and TTL != 0 */ - if (pkt[0] < 0x02 || pkt[1] == 0) - return; - - /* if version is greater than 0x02 maybe we'll have a problem; output a warning */ - if (pkt[0] != 0x02) - printf("** WARNING: CDP packet received with a protocol version %d > 2\n", - pkt[0] & 0xff); - - if (CDP_compute_csum(pkt, len) != 0) - return; - - pkt += 4; - len -= 4; - - vlan = htons(-1); - nvlan = htons(-1); - while (len > 0) { - if (len < 4) - goto pkt_short; - - ss = (const ushort *)pkt; - type = ntohs(ss[0]); - tlen = ntohs(ss[1]); - if (tlen > len) { - goto pkt_short; - } - - pkt += tlen; - len -= tlen; - - ss += 2; /* point ss to the data of the TLV */ - tlen -= 4; - - switch (type) { - case CDP_DEVICE_ID_TLV: - break; - case CDP_ADDRESS_TLV: - break; - case CDP_PORT_ID_TLV: - break; - case CDP_CAPABILITIES_TLV: - break; - case CDP_VERSION_TLV: - break; - case CDP_PLATFORM_TLV: - break; - case CDP_NATIVE_VLAN_TLV: - nvlan = *ss; - break; - case CDP_APPLIANCE_VLAN_TLV: - t = (const uchar *)ss; - while (tlen > 0) { - if (tlen < 3) - goto pkt_short; - - applid = t[0]; - ss = (const ushort *)(t + 1); - -#ifdef CONFIG_CDP_APPLIANCE_VLAN_TYPE - if (applid == CONFIG_CDP_APPLIANCE_VLAN_TYPE) - vlan = *ss; -#else - vlan = ntohs(*ss); /* XXX will this work; dunno */ -#endif - t += 3; tlen -= 3; - } - break; - case CDP_TRIGGER_TLV: - break; - case CDP_POWER_CONSUMPTION_TLV: - break; - case CDP_SYSNAME_TLV: - break; - case CDP_SYSOBJECT_TLV: - break; - case CDP_MANAGEMENT_ADDRESS_TLV: - break; - } - } - - CDPApplianceVLAN = vlan; - CDPNativeVLAN = nvlan; - - CDPOK = 1; - return; - - pkt_short: - printf("** CDP packet is too short\n"); - return; -} - -static void CDPStart(void) -{ -#if defined(CONFIG_NET_MULTI) - printf ("Using %s device\n", eth_get_name()); -#endif - CDPSeq = 0; - CDPOK = 0; - - CDPNativeVLAN = htons(-1); - CDPApplianceVLAN = htons(-1); - - NetSetTimeout (CDP_TIMEOUT, CDPTimeout); - NetSetHandler (CDPDummyHandler); - - CDPSendTrigger(); -} -#endif /* CFG_CMD_CDP */ - - -void -NetReceive(volatile uchar * inpkt, int len) -{ - Ethernet_t *et; - IP_t *ip; - ARP_t *arp; - IPaddr_t tmp; - int x; - uchar *pkt; -#if (CONFIG_COMMANDS & CFG_CMD_CDP) - int iscdp; -#endif - ushort cti = 0, vlanid = VLAN_NONE, myvlanid, mynvlanid; - -#ifdef ET_DEBUG - printf("packet received\n"); -#endif - - NetRxPkt = inpkt; - NetRxPktLen = len; - et = (Ethernet_t *)inpkt; - - /* too small packet? */ - if (len < ETHER_HDR_SIZE) - return; - -#if (CONFIG_COMMANDS & CFG_CMD_CDP) - /* keep track if packet is CDP */ - iscdp = memcmp(et->et_dest, NetCDPAddr, 6) == 0; -#endif - - myvlanid = ntohs(NetOurVLAN); - if (myvlanid == (ushort)-1) - myvlanid = VLAN_NONE; - mynvlanid = ntohs(NetOurNativeVLAN); - if (mynvlanid == (ushort)-1) - mynvlanid = VLAN_NONE; - - x = ntohs(et->et_protlen); - -#ifdef ET_DEBUG - printf("packet received\n"); -#endif - - if (x < 1514) { - /* - * Got a 802 packet. Check the other protocol field. - */ - x = ntohs(et->et_prot); - - ip = (IP_t *)(inpkt + E802_HDR_SIZE); - len -= E802_HDR_SIZE; - - } else if (x != PROT_VLAN) { /* normal packet */ - ip = (IP_t *)(inpkt + ETHER_HDR_SIZE); - len -= ETHER_HDR_SIZE; - - } else { /* VLAN packet */ - VLAN_Ethernet_t *vet = (VLAN_Ethernet_t *)et; - -#ifdef ET_DEBUG - printf("VLAN packet received\n"); -#endif - /* too small packet? */ - if (len < VLAN_ETHER_HDR_SIZE) - return; - - /* if no VLAN active */ - if ((ntohs(NetOurVLAN) & VLAN_IDMASK) == VLAN_NONE -#if (CONFIG_COMMANDS & CFG_CMD_CDP) - && iscdp == 0 -#endif - ) - return; - - cti = ntohs(vet->vet_tag); - vlanid = cti & VLAN_IDMASK; - x = ntohs(vet->vet_type); - - ip = (IP_t *)(inpkt + VLAN_ETHER_HDR_SIZE); - len -= VLAN_ETHER_HDR_SIZE; - } - -#ifdef ET_DEBUG - printf("Receive from protocol 0x%x\n", x); -#endif - -#if (CONFIG_COMMANDS & CFG_CMD_CDP) - if (iscdp) { - CDPHandler((uchar *)ip, len); - return; - } -#endif - - if ((myvlanid & VLAN_IDMASK) != VLAN_NONE) { - if (vlanid == VLAN_NONE) - vlanid = (mynvlanid & VLAN_IDMASK); - /* not matched? */ - if (vlanid != (myvlanid & VLAN_IDMASK)) - return; - } - - switch (x) { - - case PROT_ARP: - /* - * We have to deal with two types of ARP packets: - * - REQUEST packets will be answered by sending our - * IP address - if we know it. - * - REPLY packates are expected only after we asked - * for the TFTP server's or the gateway's ethernet - * address; so if we receive such a packet, we set - * the server ethernet address - */ -#ifdef ET_DEBUG - puts ("Got ARP\n"); -#endif - arp = (ARP_t *)ip; - if (len < ARP_HDR_SIZE) { - printf("bad length %d < %d\n", len, ARP_HDR_SIZE); - return; - } - if (ntohs(arp->ar_hrd) != ARP_ETHER) { - return; - } - if (ntohs(arp->ar_pro) != PROT_IP) { - return; - } - if (arp->ar_hln != 6) { - return; - } - if (arp->ar_pln != 4) { - return; - } - - if (NetOurIP == 0) { - return; - } - - if (NetReadIP(&arp->ar_data[16]) != NetOurIP) { - return; - } - - switch (ntohs(arp->ar_op)) { - case ARPOP_REQUEST: /* reply with our IP address */ -#ifdef ET_DEBUG - puts ("Got ARP REQUEST, return our IP\n"); -#endif - pkt = (uchar *)et; - pkt += NetSetEther(pkt, et->et_src, PROT_ARP); - arp->ar_op = htons(ARPOP_REPLY); - memcpy (&arp->ar_data[10], &arp->ar_data[0], 6); - NetCopyIP(&arp->ar_data[16], &arp->ar_data[6]); - memcpy (&arp->ar_data[ 0], NetOurEther, 6); - NetCopyIP(&arp->ar_data[ 6], &NetOurIP); - (void) eth_send((uchar *)et, (pkt - (uchar *)et) + ARP_HDR_SIZE); - return; - - case ARPOP_REPLY: /* arp reply */ - /* are we waiting for a reply */ - if (!NetArpWaitPacketIP || !NetArpWaitPacketMAC) - break; -#ifdef ET_DEBUG - printf("Got ARP REPLY, set server/gtwy eth addr (%02x:%02x:%02x:%02x:%02x:%02x)\n", - arp->ar_data[0], arp->ar_data[1], - arp->ar_data[2], arp->ar_data[3], - arp->ar_data[4], arp->ar_data[5]); -#endif - - tmp = NetReadIP(&arp->ar_data[6]); - - /* matched waiting packet's address */ - if (tmp == NetArpWaitReplyIP) { -#ifdef ET_DEBUG - puts ("Got it\n"); -#endif - /* save address for later use */ - memcpy(NetArpWaitPacketMAC, &arp->ar_data[0], 6); - -#ifdef CONFIG_NETCONSOLE - (*packetHandler)(0,0,0,0); -#endif - /* modify header, and transmit it */ - memcpy(((Ethernet_t *)NetArpWaitTxPacket)->et_dest, NetArpWaitPacketMAC, 6); - (void) eth_send(NetArpWaitTxPacket, NetArpWaitTxPacketSize); - - /* no arp request pending now */ - NetArpWaitPacketIP = 0; - NetArpWaitTxPacketSize = 0; - NetArpWaitPacketMAC = NULL; - - } - return; - default: -#ifdef ET_DEBUG - printf("Unexpected ARP opcode 0x%x\n", ntohs(arp->ar_op)); -#endif - return; - } - break; - - case PROT_RARP: -#ifdef ET_DEBUG - puts ("Got RARP\n"); -#endif - arp = (ARP_t *)ip; - if (len < ARP_HDR_SIZE) { - printf("bad length %d < %d\n", len, ARP_HDR_SIZE); - return; - } - - if ((ntohs(arp->ar_op) != RARPOP_REPLY) || - (ntohs(arp->ar_hrd) != ARP_ETHER) || - (ntohs(arp->ar_pro) != PROT_IP) || - (arp->ar_hln != 6) || (arp->ar_pln != 4)) { - - puts ("invalid RARP header\n"); - } else { - NetCopyIP(&NetOurIP, &arp->ar_data[16]); - if (NetServerIP == 0) - NetCopyIP(&NetServerIP, &arp->ar_data[ 6]); - memcpy (NetServerEther, &arp->ar_data[ 0], 6); - - (*packetHandler)(0,0,0,0); - } - break; - - case PROT_IP: -#ifdef ET_DEBUG - puts ("Got IP\n"); -#endif - if (len < IP_HDR_SIZE) { - debug ("len bad %d < %d\n", len, IP_HDR_SIZE); - return; - } - if (len < ntohs(ip->ip_len)) { - printf("len bad %d < %d\n", len, ntohs(ip->ip_len)); - return; - } - len = ntohs(ip->ip_len); -#ifdef ET_DEBUG - printf("len=%d, v=%02x\n", len, ip->ip_hl_v & 0xff); -#endif - if ((ip->ip_hl_v & 0xf0) != 0x40) { - return; - } - if (ip->ip_off & htons(0x1fff)) { /* Can't deal w/ fragments */ - return; - } - if (!NetCksumOk((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2)) { - puts ("checksum bad\n"); - return; - } - tmp = NetReadIP(&ip->ip_dst); - if (NetOurIP && tmp != NetOurIP && tmp != 0xFFFFFFFF) { - return; - } - /* - * watch for ICMP host redirects - * - * 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 :-) - * - * 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. - */ - if (ip->ip_p == IPPROTO_ICMP) { - ICMP_t *icmph = (ICMP_t *)&(ip->udp_src); - - switch (icmph->type) { - case ICMP_REDIRECT: - if (icmph->code != ICMP_REDIR_HOST) - return; - puts (" ICMP Host Redirect to "); - print_IPaddr(icmph->un.gateway); - putc(' '); - return; -#if (CONFIG_COMMANDS & CFG_CMD_PING) - case ICMP_ECHO_REPLY: - /* - * IP header OK. Pass the packet to the current handler. - */ - /* XXX point to ip packet */ - (*packetHandler)((uchar *)ip, 0, 0, 0); - return; -#endif - default: - return; - } - } else if (ip->ip_p != IPPROTO_UDP) { /* Only UDP packets */ - return; - } - -#ifdef CONFIG_UDP_CHECKSUM - if (ip->udp_xsum != 0) { - ulong xsum; - ushort *sumptr; - ushort sumlen; - - xsum = ip->ip_p; - xsum += (ntohs(ip->udp_len)); - xsum += (ntohl(ip->ip_src) >> 16) & 0x0000ffff; - xsum += (ntohl(ip->ip_src) >> 0) & 0x0000ffff; - xsum += (ntohl(ip->ip_dst) >> 16) & 0x0000ffff; - xsum += (ntohl(ip->ip_dst) >> 0) & 0x0000ffff; - - sumlen = ntohs(ip->udp_len); - sumptr = (ushort *) &(ip->udp_src); - - while (sumlen > 1) { - ushort sumdata; - - sumdata = *sumptr++; - xsum += ntohs(sumdata); - sumlen -= 2; - } - if (sumlen > 0) { - ushort sumdata; - - sumdata = *(unsigned char *) sumptr; - sumdata = (sumdata << 8) & 0xff00; - xsum += sumdata; - } - while ((xsum >> 16) != 0) { - xsum = (xsum & 0x0000ffff) + ((xsum >> 16) & 0x0000ffff); - } - if ((xsum != 0x00000000) && (xsum != 0x0000ffff)) { - printf(" UDP wrong checksum %08x %08x\n", xsum, ntohs(ip->udp_xsum)); - return; - } - } -#endif - -#ifdef CONFIG_NETCONSOLE - nc_input_packet((uchar *)ip +IP_HDR_SIZE, - ntohs(ip->udp_dst), - ntohs(ip->udp_src), - ntohs(ip->udp_len) - 8); -#endif - /* - * IP header OK. Pass the packet to the current handler. - */ - (*packetHandler)((uchar *)ip +IP_HDR_SIZE, - ntohs(ip->udp_dst), - ntohs(ip->udp_src), - ntohs(ip->udp_len) - 8); - break; - } -} - - -/**********************************************************************/ - -static int net_check_prereq (proto_t protocol) -{ - switch (protocol) { - /* Fall through */ -#if (CONFIG_COMMANDS & CFG_CMD_PING) - case PING: - if (NetPingIP == 0) { - puts ("*** ERROR: ping address not given\n"); - return (1); - } - goto common; -#endif -#if (CONFIG_COMMANDS & CFG_CMD_SNTP) - case SNTP: - if (NetNtpServerIP == 0) { - puts ("*** ERROR: NTP server address not given\n"); - return (1); - } - goto common; -#endif -#if (CONFIG_COMMANDS & CFG_CMD_NFS) - case NFS: -#endif - case NETCONS: - case TFTP: - if (NetServerIP == 0) { - puts ("*** ERROR: `serverip' not set\n"); - return (1); - } -#if (CONFIG_COMMANDS & (CFG_CMD_PING | CFG_CMD_SNTP)) - common: -#endif - - if (NetOurIP == 0) { - puts ("*** ERROR: `ipaddr' not set\n"); - return (1); - } - /* Fall through */ - - case DHCP: - case RARP: - case BOOTP: - case CDP: - if (memcmp (NetOurEther, "\0\0\0\0\0\0", 6) == 0) { -#ifdef CONFIG_NET_MULTI - extern int eth_get_dev_index (void); - int num = eth_get_dev_index (); - - switch (num) { - case -1: - puts ("*** ERROR: No ethernet found.\n"); - return (1); - case 0: - puts ("*** ERROR: `ethaddr' not set\n"); - break; - default: - printf ("*** ERROR: `eth%daddr' not set\n", - num); - break; - } - - NetStartAgain (); - return (2); -#else - puts ("*** ERROR: `ethaddr' not set\n"); - return (1); -#endif - } - /* Fall through */ - default: - return (0); - } - return (0); /* OK */ -} -/**********************************************************************/ - -int -NetCksumOk(uchar * ptr, int len) -{ - return !((NetCksum(ptr, len) + 1) & 0xfffe); -} - - -unsigned -NetCksum(uchar * ptr, int len) -{ - ulong xsum; - ushort *p = (ushort *)ptr; - - xsum = 0; - while (len-- > 0) - xsum += *p++; - xsum = (xsum & 0xffff) + (xsum >> 16); - xsum = (xsum & 0xffff) + (xsum >> 16); - return (xsum & 0xffff); -} - -int -NetEthHdrSize(void) -{ - ushort myvlanid; - - myvlanid = ntohs(NetOurVLAN); - if (myvlanid == (ushort)-1) - myvlanid = VLAN_NONE; - - return ((myvlanid & VLAN_IDMASK) == VLAN_NONE) ? ETHER_HDR_SIZE : VLAN_ETHER_HDR_SIZE; -} - -int -NetSetEther(volatile uchar * xet, uchar * addr, uint prot) -{ - Ethernet_t *et = (Ethernet_t *)xet; - ushort myvlanid; - - myvlanid = ntohs(NetOurVLAN); - if (myvlanid == (ushort)-1) - myvlanid = VLAN_NONE; - - memcpy (et->et_dest, addr, 6); - memcpy (et->et_src, NetOurEther, 6); - if ((myvlanid & VLAN_IDMASK) == VLAN_NONE) { - et->et_protlen = htons(prot); - return ETHER_HDR_SIZE; - } else { - VLAN_Ethernet_t *vet = (VLAN_Ethernet_t *)xet; - - 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; - } -} - -void -NetSetIP(volatile uchar * xip, IPaddr_t dest, int dport, int sport, int len) -{ - volatile IP_t *ip = (IP_t *)xip; - - /* - * 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) - xip[IP_HDR_SIZE + len] = 0; - - /* - * Construct an IP and UDP header. - * (need to set no fragment bit - XXX) - */ - ip->ip_hl_v = 0x45; /* IP_HDR_SIZE / 4 (not including UDP) */ - ip->ip_tos = 0; - ip->ip_len = htons(IP_HDR_SIZE + len); - ip->ip_id = htons(NetIPID++); - ip->ip_off = htons(0x4000); /* No fragmentation */ - ip->ip_ttl = 255; - ip->ip_p = 17; /* UDP */ - ip->ip_sum = 0; - NetCopyIP((void*)&ip->ip_src, &NetOurIP); /* already in network byte order */ - NetCopyIP((void*)&ip->ip_dst, &dest); /* - "" - */ - ip->udp_src = htons(sport); - ip->udp_dst = htons(dport); - ip->udp_len = htons(8 + len); - ip->udp_xsum = 0; - ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2); -} - -void copy_filename (char *dst, char *src, int size) -{ - if (*src && (*src == '"')) { - ++src; - --size; - } - - while ((--size > 0) && *src && (*src != '"')) { - *dst++ = *src++; - } - *dst = '\0'; -} - -#endif /* CFG_CMD_NET */ - -void ip_to_string (IPaddr_t x, char *s) -{ - x = ntohl (x); - sprintf (s, "%d.%d.%d.%d", - (int) ((x >> 24) & 0xff), - (int) ((x >> 16) & 0xff), - (int) ((x >> 8) & 0xff), (int) ((x >> 0) & 0xff) - ); -} - -IPaddr_t string_to_ip(char *s) -{ - IPaddr_t addr; - char *e; - int i; - - if (s == NULL) - return(0); - - for (addr=0, i=0; i<4; ++i) { - ulong val = s ? simple_strtoul(s, &e, 10) : 0; - addr <<= 8; - addr |= (val & 0xFF); - if (s) { - s = (*e) ? e+1 : e; - } - } - - return (htonl(addr)); -} - -void VLAN_to_string(ushort x, char *s) -{ - x = ntohs(x); - - if (x == (ushort)-1) - x = VLAN_NONE; - - if (x == VLAN_NONE) - strcpy(s, "none"); - else - sprintf(s, "%d", x & VLAN_IDMASK); -} - -ushort string_to_VLAN(char *s) -{ - ushort id; - - if (s == NULL) - return htons(VLAN_NONE); - - if (*s < '0' || *s > '9') - id = VLAN_NONE; - else - id = (ushort)simple_strtoul(s, NULL, 10); - - return htons(id); -} - -void print_IPaddr (IPaddr_t x) -{ - char tmp[16]; - - ip_to_string (x, tmp); - - puts (tmp); -} - -IPaddr_t getenv_IPaddr (char *var) -{ - return (string_to_ip(getenv(var))); -} - -ushort getenv_VLAN(char *var) -{ - return (string_to_VLAN(getenv(var))); -} |