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Merge with /home/wd/git/u-boot/custodian/u-boot-net

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Wolfgang Denk 2007-04-18 17:10:30 +02:00
commit 1d10b9e99d
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5
doc/README.NetConsole
View file

@ -38,6 +38,11 @@ The script expects exactly one argument, which is interpreted as the
target IP address (or host name, assuming DNS is working). The script
can be interrupted by pressing ^T (CTRL-T).
Be aware that in some distributives (Fedora Core 5 at least)
usage of nc has been changed and -l and -p options are considered
as mutually exclusive. If nc complains about options provided,
you can just remove the -p option from the script.
It turns out that 'netcat' cannot be used to listen to broadcast
packets. We developed our own tool 'ncb' (see tools directory) that
listens to broadcast packets on a given port and dumps them to the

20
net/net.c
View file

@ -1424,6 +1424,26 @@ NetReceive(volatile uchar * inpkt, int len)
/* XXX point to ip packet */
(*packetHandler)((uchar *)ip, 0, 0, 0);
return;
case ICMP_ECHO_REQUEST:
#ifdef ET_DEBUG
printf ("Got ICMP ECHO REQUEST, return %d bytes \n",
ETHER_HDR_SIZE + len);
#endif
memcpy (&et->et_dest[0], &et->et_src[0], 6);
memcpy (&et->et_src[ 0], NetOurEther, 6);
ip->ip_sum = 0;
ip->ip_off = 0;
NetCopyIP((void*)&ip->ip_dst, &ip->ip_src);
NetCopyIP((void*)&ip->ip_src, &NetOurIP);
ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP >> 1);
icmph->type = ICMP_ECHO_REPLY;
icmph->checksum = 0;
icmph->checksum = ~NetCksum((uchar *)icmph,
(len - IP_HDR_SIZE_NO_UDP) >> 1);
(void) eth_send((uchar *)et, ETHER_HDR_SIZE + len);
return;
#endif
default:
return;