unsigned int
mroute_extract_addr_ether(struct mroute_addr *src,
struct mroute_addr *dest,
struct mroute_addr *esrc,
struct mroute_addr *edest,
const struct buffer *buf)
{
unsigned int ret = 0;
if (BLEN(buf) >= (int) sizeof(struct openvpn_ethhdr))
{
const struct openvpn_ethhdr *eth = (const struct openvpn_ethhdr *) BPTR(buf);
if (src)
{
src->type = MR_ADDR_ETHER;
src->netbits = 0;
src->len = 6;
memcpy(src->eth_addr, eth->source, sizeof(dest->eth_addr));
}
if (dest)
{
dest->type = MR_ADDR_ETHER;
dest->netbits = 0;
dest->len = 6;
memcpy(dest->eth_addr, eth->dest, sizeof(dest->eth_addr));
/* ethernet broadcast/multicast packet? */
if (is_mac_mcast_addr(eth->dest))
{
ret |= MROUTE_EXTRACT_BCAST;
}
}
ret |= MROUTE_EXTRACT_SUCCEEDED;
#ifdef ENABLE_PF
if (esrc || edest)
{
struct buffer b = *buf;
if (buf_advance(&b, sizeof(struct openvpn_ethhdr)))
{
switch (ntohs(eth->proto))
{
case OPENVPN_ETH_P_IPV4:
ret |= (mroute_extract_addr_ip(esrc, edest, &b) << MROUTE_SEC_SHIFT);
break;
case OPENVPN_ETH_P_ARP:
ret |= (mroute_extract_addr_arp(esrc, edest, &b) << MROUTE_SEC_SHIFT);
break;
}
}
}
#endif
}
return ret;
}
static inline bool
is_mac_mcast_maddr (const struct mroute_addr *addr)
{
return (addr->type & MR_ADDR_MASK) == MR_ADDR_ETHER && is_mac_mcast_addr (addr->addr);
}
