diff options
Diffstat (limited to 'firmware/microblaze/lib/net_common.c')
| -rw-r--r-- | firmware/microblaze/lib/net_common.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/firmware/microblaze/lib/net_common.c b/firmware/microblaze/lib/net_common.c index 0efb26639..0a085db3a 100644 --- a/firmware/microblaze/lib/net_common.c +++ b/firmware/microblaze/lib/net_common.c @@ -360,6 +360,22 @@ send_arp_reply(struct arp_eth_ipv4 *req, eth_mac_addr_t our_mac) send_pkt(t, ETHERTYPE_ARP, &reply, sizeof(reply), 0, 0, 0, 0); } +void send_gratuitous_arp(void){ + struct arp_eth_ipv4 req _AL4; + req.ar_hrd = ARPHRD_ETHER; + req.ar_pro = ETHERTYPE_IPV4; + req.ar_hln = sizeof(eth_mac_addr_t); + req.ar_pln = sizeof(struct ip_addr); + req.ar_op = ARPOP_REQUEST; + memcpy(req.ar_sha, ethernet_mac_addr(), sizeof(eth_mac_addr_t)); + memcpy(req.ar_sip, get_ip_addr(), sizeof(struct ip_addr)); + memset(req.ar_tha, 0x00, sizeof(eth_mac_addr_t)); + memcpy(req.ar_tip, get_ip_addr(), sizeof(struct ip_addr)); + + //send the request with a broadcast ethernet mac address + eth_mac_addr_t t; memset(&t, 0xff, sizeof(t)); + send_pkt(t, ETHERTYPE_ARP, &req, sizeof(req), 0, 0, 0, 0); +} static void handle_arp_packet(struct arp_eth_ipv4 *p, size_t size) |