DECLARE_GLOBAL_DATA_PTR;
-#define ARP_TIMEOUT 5UL /* Seconds before trying ARP again */
+#ifndef CONFIG_ARP_TIMEOUT
+# define ARP_TIMEOUT 50UL /* Deciseconds before trying ARP again */
+#elif (CONFIG_ARP_TIMEOUT < 100)
+# error "Due to possible overflow CONFIG_ARP_TIMEOUT must be greater than 100ms"
+#else
+# if (CONFIG_ARP_TIMEOUT % 100)
+# warning "Supported ARP_TIMEOUT precision is 100ms"
+# endif
+# define ARP_TIMEOUT (CONFIG_ARP_TIMEOUT / 100)
+#endif
+
+
#ifndef CONFIG_NET_RETRY_COUNT
-# define ARP_TIMEOUT_COUNT 5 /* # of timeouts before giving up */
+# define ARP_TIMEOUT_COUNT 5 /* # of timeouts before giving up */
#else
-# define ARP_TIMEOUT_COUNT (CONFIG_NET_RETRY_COUNT)
+# define ARP_TIMEOUT_COUNT CONFIG_NET_RETRY_COUNT
#endif
#if 0
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) */
+IPaddr_t NetServerIP; /* Server IP addr (0 = unknown) */
volatile uchar *NetRxPkt; /* Current receive packet */
int NetRxPktLen; /* Current rx packet length */
unsigned NetIPID; /* IP packet ID */
char BootFile[128]; /* Boot File name */
#if defined(CONFIG_CMD_PING)
-IPaddr_t NetPingIP; /* the ip address to ping */
+IPaddr_t NetPingIP; /* the ip address to ping */
static void PingStart(void);
#endif
uchar *NetArpWaitPacketMAC; /* MAC address of waiting packet's destination */
uchar *NetArpWaitTxPacket; /* THE transmit packet */
int NetArpWaitTxPacketSize;
-uchar NetArpWaitPacketBuf[PKTSIZE_ALIGN + PKTALIGN];
+uchar NetArpWaitPacketBuf[PKTSIZE_ALIGN + PKTALIGN];
ulong NetArpWaitTimerStart;
int NetArpWaitTry;
t = get_timer(0);
/* check for arp timeout */
- if ((t - NetArpWaitTimerStart) > ARP_TIMEOUT * CFG_HZ) {
+ if ((t - NetArpWaitTimerStart) > ARP_TIMEOUT * CFG_HZ / 10) {
NetArpWaitTry++;
if (NetArpWaitTry >= ARP_TIMEOUT_COUNT) {
* Check the ethernet for a new packet. The ethernet
* receive routine will process it.
*/
- eth_rx();
+ eth_rx();
/*
* Abort if ctrl-c was pressed.
s = &ip->udp_src; /* XXX ICMP starts here */
s[0] = htons(0x0800); /* echo-request, code */
s[1] = 0; /* checksum */
- s[2] = 0; /* identifier */
+ s[2] = 0; /* identifier */
s[3] = htons(PingSeqNo++); /* sequence number */
s[1] = ~NetCksum((uchar *)s, 8/2);
if (ip->ip_off & htons(0x1fff)) { /* Can't deal w/ fragments */
return;
}
+ /* can't deal with headers > 20 bytes */
+ if ((ip->ip_hl_v & 0x0f) > 0x05) {
+ return;
+ }
if (!NetCksumOk((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2)) {
puts ("checksum bad\n");
return;