diff options
Diffstat (limited to 'net/arp.c')
| -rw-r--r-- | net/arp.c | 69 |
1 files changed, 34 insertions, 35 deletions
@@ -30,40 +30,40 @@ struct in_addr net_arp_wait_packet_ip; static struct in_addr net_arp_wait_reply_ip; /* MAC address of waiting packet's destination */ -uchar *NetArpWaitPacketMAC; -int NetArpWaitTxPacketSize; -ulong NetArpWaitTimerStart; -int NetArpWaitTry; +uchar *arp_wait_packet_ethaddr; +int arp_wait_tx_packet_size; +ulong arp_wait_timer_start; +int arp_wait_try; -static uchar *net_arp_tx_packet; /* THE ARP transmit packet */ -static uchar NetArpPacketBuf[PKTSIZE_ALIGN + PKTALIGN]; +static uchar *arp_tx_packet; /* THE ARP transmit packet */ +static uchar arp_tx_packet_buf[PKTSIZE_ALIGN + PKTALIGN]; -void ArpInit(void) +void arp_init(void) { /* XXX problem with bss workaround */ - NetArpWaitPacketMAC = NULL; + arp_wait_packet_ethaddr = NULL; net_arp_wait_packet_ip.s_addr = 0; net_arp_wait_reply_ip.s_addr = 0; - NetArpWaitTxPacketSize = 0; - net_arp_tx_packet = &NetArpPacketBuf[0] + (PKTALIGN - 1); - net_arp_tx_packet -= (ulong)net_arp_tx_packet % PKTALIGN; + arp_wait_tx_packet_size = 0; + arp_tx_packet = &arp_tx_packet_buf[0] + (PKTALIGN - 1); + arp_tx_packet -= (ulong)arp_tx_packet % PKTALIGN; } -void arp_raw_request(struct in_addr source_ip, const uchar *targetEther, +void arp_raw_request(struct in_addr source_ip, const uchar *target_ethaddr, struct in_addr target_ip) { uchar *pkt; struct arp_hdr *arp; int eth_hdr_size; - debug_cond(DEBUG_DEV_PKT, "ARP broadcast %d\n", NetArpWaitTry); + debug_cond(DEBUG_DEV_PKT, "ARP broadcast %d\n", arp_wait_try); - pkt = net_arp_tx_packet; + pkt = arp_tx_packet; eth_hdr_size = net_set_ether(pkt, net_bcast_ethaddr, PROT_ARP); pkt += eth_hdr_size; - arp = (struct arp_hdr *) pkt; + arp = (struct arp_hdr *)pkt; arp->ar_hrd = htons(ARP_ETHER); arp->ar_pro = htons(PROT_IP); @@ -73,13 +73,13 @@ void arp_raw_request(struct in_addr source_ip, const uchar *targetEther, memcpy(&arp->ar_sha, net_ethaddr, ARP_HLEN); /* source ET addr */ net_write_ip(&arp->ar_spa, source_ip); /* source IP addr */ - memcpy(&arp->ar_tha, targetEther, ARP_HLEN); /* target ET addr */ + memcpy(&arp->ar_tha, target_ethaddr, ARP_HLEN); /* target ET addr */ net_write_ip(&arp->ar_tpa, target_ip); /* target IP addr */ - net_send_packet(net_arp_tx_packet, eth_hdr_size + ARP_HDR_SIZE); + net_send_packet(arp_tx_packet, eth_hdr_size + ARP_HDR_SIZE); } -void ArpRequest(void) +void arp_request(void) { if ((net_arp_wait_packet_ip.s_addr & net_netmask.s_addr) != (net_ip.s_addr & net_netmask.s_addr)) { @@ -96,7 +96,7 @@ void ArpRequest(void) arp_raw_request(net_ip, net_null_ethaddr, net_arp_wait_reply_ip); } -void ArpTimeoutCheck(void) +void arp_timeout_check(void) { ulong t; @@ -106,21 +106,21 @@ void ArpTimeoutCheck(void) t = get_timer(0); /* check for arp timeout */ - if ((t - NetArpWaitTimerStart) > ARP_TIMEOUT) { - NetArpWaitTry++; + if ((t - arp_wait_timer_start) > ARP_TIMEOUT) { + arp_wait_try++; - if (NetArpWaitTry >= ARP_TIMEOUT_COUNT) { + if (arp_wait_try >= ARP_TIMEOUT_COUNT) { puts("\nARP Retry count exceeded; starting again\n"); - NetArpWaitTry = 0; + arp_wait_try = 0; NetStartAgain(); } else { - NetArpWaitTimerStart = t; - ArpRequest(); + arp_wait_timer_start = t; + arp_request(); } } } -void ArpReceive(struct ethernet_hdr *et, struct ip_udp_hdr *ip, int len) +void arp_receive(struct ethernet_hdr *et, struct ip_udp_hdr *ip, int len) { struct arp_hdr *arp; struct in_addr reply_ip_addr; @@ -205,28 +205,27 @@ void ArpReceive(struct ethernet_hdr *et, struct ip_udp_hdr *ip, int len) /* matched waiting packet's address */ if (reply_ip_addr.s_addr == net_arp_wait_reply_ip.s_addr) { debug_cond(DEBUG_DEV_PKT, - "Got ARP REPLY, set eth addr (%pM)\n", - arp->ar_data); + "Got ARP REPLY, set eth addr (%pM)\n", + arp->ar_data); /* save address for later use */ - if (NetArpWaitPacketMAC != NULL) - memcpy(NetArpWaitPacketMAC, + if (arp_wait_packet_ethaddr != NULL) + memcpy(arp_wait_packet_ethaddr, &arp->ar_sha, ARP_HLEN); net_get_arp_handler()((uchar *)arp, 0, reply_ip_addr, - 0, len); + 0, len); /* set the mac address in the waiting packet's header and transmit it */ memcpy(((struct ethernet_hdr *)net_tx_packet)->et_dest, &arp->ar_sha, ARP_HLEN); - net_send_packet(net_tx_packet, NetArpWaitTxPacketSize); + net_send_packet(net_tx_packet, arp_wait_tx_packet_size); /* no arp request pending now */ net_arp_wait_packet_ip.s_addr = 0; - NetArpWaitTxPacketSize = 0; - NetArpWaitPacketMAC = NULL; - + arp_wait_tx_packet_size = 0; + arp_wait_packet_ethaddr = NULL; } return; default: |
