X-Git-Url: http://git.sameswireless.fr/l2tpns.git/blobdiff_plain/c5e4c2cfc092317c1e3ceb0f654f880f6a8573f4..fcf03c43e3dbc50252551806720011409333495d:/arp.c diff --git a/arp.c b/arp.c index 122880a..78ba856 100644 --- a/arp.c +++ b/arp.c @@ -1,3 +1,7 @@ +// L2TPNS: arp + +char const *cvs_id_arp = "$Id: arp.c,v 1.4 2004-07-08 16:19:09 bodea Exp $"; + #include #include #include @@ -25,6 +29,9 @@ void sendarp(int ifr_idx, const unsigned char* mac, ipt ip) struct sockaddr_ll sll; struct arp_buf buf; + CSTAT(call_sendarp); + STAT(arp_sent); + /* Ethernet */ memset(buf.eth.ether_dhost, 0xFF, ETH_ALEN); memcpy(buf.eth.ether_shost, mac, ETH_ALEN); @@ -42,15 +49,16 @@ void sendarp(int ifr_idx, const unsigned char* mac, ipt ip) memcpy(&buf.ar_sip, &ip, sizeof(ip)); memcpy(buf.ar_tha, mac, ETH_ALEN); memcpy(&buf.ar_tip, &ip, sizeof(ip)); - + /* Now actually send the thing */ fd = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_RARP)); memset(&sll, 0, sizeof(sll)); sll.sll_family = AF_PACKET; - strncpy(sll.sll_addr, mac, sizeof(sll.sll_addr)); /* Null-pad */ + strncpy(sll.sll_addr, mac, sizeof(sll.sll_addr) - 1); sll.sll_halen = ETH_ALEN; sll.sll_ifindex = ifr_idx; sendto(fd, &buf, sizeof(buf), 0, (struct sockaddr*)&sll, sizeof(sll)); + close(fd); }