diff options
Diffstat (limited to 'net/arp.c')
-rw-r--r-- | net/arp.c | 24 |
1 files changed, 12 insertions, 12 deletions
@@ -30,22 +30,22 @@ IPaddr_t NetArpWaitPacketIP; IPaddr_t NetArpWaitReplyIP; /* MAC address of waiting packet's destination */ uchar *NetArpWaitPacketMAC; -/* THE transmit packet */ -uchar *NetArpWaitTxPacket; int NetArpWaitTxPacketSize; -uchar NetArpWaitPacketBuf[PKTSIZE_ALIGN + PKTALIGN]; ulong NetArpWaitTimerStart; int NetArpWaitTry; +uchar *NetArpTxPacket; /* THE ARP transmit packet */ +uchar NetArpPacketBuf[PKTSIZE_ALIGN + PKTALIGN]; + void ArpInit(void) { /* XXX problem with bss workaround */ NetArpWaitPacketMAC = NULL; NetArpWaitPacketIP = 0; NetArpWaitReplyIP = 0; - NetArpWaitTxPacket = &NetArpWaitPacketBuf[0] + (PKTALIGN - 1); - NetArpWaitTxPacket -= (ulong)NetArpWaitTxPacket % PKTALIGN; NetArpWaitTxPacketSize = 0; + NetArpTxPacket = &NetArpPacketBuf[0] + (PKTALIGN - 1); + NetArpTxPacket -= (ulong)NetArpTxPacket % PKTALIGN; } void ArpRequest(void) @@ -56,7 +56,7 @@ void ArpRequest(void) debug("ARP broadcast %d\n", NetArpWaitTry); - pkt = NetTxPacket; + pkt = NetArpTxPacket; eth_hdr_size = NetSetEther(pkt, NetBcastAddr, PROT_ARP); pkt += eth_hdr_size; @@ -88,7 +88,7 @@ void ArpRequest(void) } NetWriteIP(&arp->ar_tpa, NetArpWaitReplyIP); - NetSendPacket(NetTxPacket, eth_hdr_size + ARP_HDR_SIZE); + NetSendPacket(NetArpTxPacket, eth_hdr_size + ARP_HDR_SIZE); } void ArpTimeoutCheck(void) @@ -196,11 +196,11 @@ void ArpReceive(struct ethernet_hdr *et, struct ip_udp_hdr *ip, int len) net_get_arp_handler()((uchar *)arp, 0, reply_ip_addr, 0, len); - /* modify header, and transmit it */ - memcpy(((struct ethernet_hdr *)NetArpWaitTxPacket)-> - et_dest, &arp->ar_sha, ARP_HLEN); - NetSendPacket(NetArpWaitTxPacket, - NetArpWaitTxPacketSize); + /* set the mac address in the waiting packet's header + and transmit it */ + memcpy(((struct ethernet_hdr *)NetTxPacket)->et_dest, + &arp->ar_sha, ARP_HLEN); + NetSendPacket(NetTxPacket, NetArpWaitTxPacketSize); /* no arp request pending now */ NetArpWaitPacketIP = 0; |