static int lw_nsnap_send(struct lw_psr_port_priv *psr_ppriv)
{
struct lw_nsnap_port_priv *nsnap_ppriv = lw_nsnap_ppriv_get(psr_ppriv);
int err;
struct sockaddr_ll ll_my;
struct sockaddr_in6 sendto_addr;
struct ns_packet nsp;
err = teamd_getsockname_hwaddr(psr_ppriv->sock, &ll_my,
sizeof(nsp.hwaddr));
if (err)
return err;
memset(&nsp, 0, sizeof(nsp));
/* setup ICMP6 header */
nsp.nsh.nd_ns_type = ND_NEIGHBOR_SOLICIT;
nsp.nsh.nd_ns_cksum = 0; /* kernel computes this */
nsp.nsh.nd_ns_target = nsnap_ppriv->dst.sin6_addr;
nsp.opt.nd_opt_type = ND_OPT_SOURCE_LINKADDR;
nsp.opt.nd_opt_len = 1; /* 8 bytes */
memcpy(nsp.hwaddr, ll_my.sll_addr, sizeof(nsp.hwaddr));
sendto_addr = nsnap_ppriv->dst;
compute_multi_in6_addr(&sendto_addr.sin6_addr);
sendto_addr.sin6_scope_id = psr_ppriv->common.tdport->ifindex;
err = teamd_sendto(nsnap_ppriv->tx_sock, &nsp, sizeof(nsp), 0,
(struct sockaddr *) &sendto_addr,
sizeof(sendto_addr));
return err;
}
static int lw_ap_send(struct lw_psr_port_priv *psr_ppriv)
{
struct lw_ap_port_priv *ap_ppriv = lw_ap_ppriv_get(psr_ppriv);
int err;
struct sockaddr_ll ll_my;
struct sockaddr_ll ll_bcast;
struct arp_packet ap;
if (!(psr_ppriv->common.forced_send || ap_ppriv->send_always))
return 0;
err = __get_port_curr_hwaddr(psr_ppriv, &ll_my, 0);
if (err)
return err;
ll_bcast = ll_my;
memset(ll_bcast.sll_addr, 0xFF, ll_bcast.sll_halen);
memset(&ap, 0, sizeof(ap));
ap.ah.ar_hrd = htons(ll_my.sll_hatype);
ap.ah.ar_pro = htons(ETH_P_IP);
ap.ah.ar_hln = ll_my.sll_halen;
ap.ah.ar_pln = 4;
ap.ah.ar_op = htons(ARPOP_REQUEST);
memcpy(ap.sender_mac, ll_my.sll_addr, sizeof(ap.sender_mac));
ap.sender_ip = ap_ppriv->src;
memcpy(ap.target_mac, ll_bcast.sll_addr, sizeof(ap.target_mac));
ap.target_ip = ap_ppriv->dst;
if (ap_ppriv->vlanid_in_use) {
struct arp_vlan_packet avp;
avp.ap = ap;
avp.vlanh.h_vlan_encapsulated_proto = htons(ETH_P_ARP);
avp.vlanh.h_vlan_TCI = htons(ap_ppriv->vlanid);
ll_bcast.sll_protocol = htons(ETH_P_8021Q);
return teamd_sendto(psr_ppriv->sock, &avp, sizeof(avp),
0, (struct sockaddr *) &ll_bcast,
sizeof(ll_bcast));
} else {
return teamd_sendto(psr_ppriv->sock, &ap, sizeof(ap),
0, (struct sockaddr *) &ll_bcast,
sizeof(ll_bcast));
}
}
