diff options
| -rw-r--r-- | firmware/microblaze/lib/net_common.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/firmware/microblaze/lib/net_common.c b/firmware/microblaze/lib/net_common.c index 67a3ff964..6c9509c92 100644 --- a/firmware/microblaze/lib/net_common.c +++ b/firmware/microblaze/lib/net_common.c @@ -303,7 +303,24 @@ handle_icmp_packet(struct ip_addr src, struct ip_addr dst, } break; - case ICMP_ECHO: + case ICMP_ECHO:{ + struct icmp_echo_hdr echo_reply; + echo_reply.type = 0; + echo_reply.code = 0; + echo_reply.chksum = 0; + echo_reply.id = icmp->id; + echo_reply.seqno = icmp->seqno; + echo_reply.chksum = ~chksum_buffer( + (unsigned short *)&echo_reply, + sizeof(echo_reply)/sizeof(short), + 0); + send_ip_pkt( + src, IP_PROTO_ICMP, &echo_reply, sizeof(echo_reply), + ((uint8_t*)icmp) + sizeof(struct icmp_echo_hdr), + len - sizeof(struct icmp_echo_hdr) + ); + break; + } default: break; } |