/*
* Callback for netif_add() to initialize the interface.
*/
err_t VBoxNetLwipNAT::netifInit(netif *pNetif)
{
err_t rcLwip = ERR_OK;
AssertPtrReturn(pNetif, ERR_ARG);
VBoxNetLwipNAT *pNat = static_cast<VBoxNetLwipNAT *>(pNetif->state);
AssertPtrReturn(pNat, ERR_ARG);
LogFlowFunc(("ENTER: pNetif[%c%c%d]\n", pNetif->name[0], pNetif->name[1], pNetif->num));
/* validity */
AssertReturn( pNetif->name[0] == 'N'
&& pNetif->name[1] == 'T', ERR_ARG);
pNetif->hwaddr_len = sizeof(RTMAC);
RTMAC mac = g_pLwipNat->getMacAddress();
memcpy(pNetif->hwaddr, &mac, sizeof(RTMAC));
pNat->m_u16Mtu = 1500; // XXX: FIXME
pNetif->mtu = pNat->m_u16Mtu;
pNetif->flags = NETIF_FLAG_BROADCAST
| NETIF_FLAG_ETHARP /* Don't bother driver with ARP and let Lwip resolve ARP handling */
| NETIF_FLAG_ETHERNET; /* Lwip works with ethernet too */
pNetif->linkoutput = netifLinkoutput; /* ether-level-pipe */
pNetif->output = etharp_output; /* ip-pipe */
if (pNat->m_ProxyOptions.ipv6_enabled) {
pNetif->output_ip6 = ethip6_output;
/* IPv6 link-local address in slot 0 */
netif_create_ip6_linklocal_address(pNetif, /* :from_mac_48bit */ 1);
netif_ip6_addr_set_state(pNetif, 0, IP6_ADDR_PREFERRED); // skip DAD
/*
* RFC 4193 Locally Assigned Global ID (ULA) in slot 1
* [fd17:625c:f037:XXXX::1] where XXXX, 16 bit Subnet ID, are two
* bytes from the middle of the IPv4 address, e.g. :dead: for
* 10.222.173.1
*/
u8_t nethi = ip4_addr2(&pNetif->ip_addr);
u8_t netlo = ip4_addr3(&pNetif->ip_addr);
ip6_addr_t *paddr = netif_ip6_addr(pNetif, 1);
IP6_ADDR(paddr, 0, 0xFD, 0x17, 0x62, 0x5C);
IP6_ADDR(paddr, 1, 0xF0, 0x37, nethi, netlo);
IP6_ADDR(paddr, 2, 0x00, 0x00, 0x00, 0x00);
IP6_ADDR(paddr, 3, 0x00, 0x00, 0x00, 0x01);
netif_ip6_addr_set_state(pNetif, 1, IP6_ADDR_PREFERRED);
#if LWIP_IPV6_SEND_ROUTER_SOLICIT
pNetif->rs_count = 0;
#endif
}
LogFlowFunc(("LEAVE: %d\n", rcLwip));
return rcLwip;
}
static void sockaddr2ip_6addr(struct ip_addr *ipaddrp,unsigned char *addr)
{
IP6_ADDR(ipaddrp,
(addr[0]<<8)|addr[1],
(addr[2]<<8)|addr[3],
(addr[4]<<8)|addr[5],
(addr[6]<<8)|addr[7],
(addr[8]<<8)|addr[9],
(addr[10]<<8)|addr[11],
(addr[12]<<8)|addr[13],
(addr[14]<<8)|addr[15]);
}
/*
* Change an IPv6 address of a network interface (internal version taking 4 * u32_t)
*
* @param netif the network interface to change
* @param addr_idx index of the IPv6 address
* @param i0 word0 of the new IPv6 address
* @param i1 word1 of the new IPv6 address
* @param i2 word2 of the new IPv6 address
* @param i3 word3 of the new IPv6 address
*/
void
netif_ip6_addr_set_parts(struct netif *netif, s8_t addr_idx, u32_t i0, u32_t i1, u32_t i2, u32_t i3)
{
const ip6_addr_t *old_addr;
LWIP_ASSERT("netif != NULL", netif != NULL);
LWIP_ASSERT("invalid index", addr_idx < LWIP_IPV6_NUM_ADDRESSES);
old_addr = netif_ip6_addr(netif, addr_idx);
/* address is actually being changed? */
if ((old_addr->addr[0] != i0) || (old_addr->addr[1] != i1) ||
(old_addr->addr[2] != i2) || (old_addr->addr[3] != i3)) {
LWIP_DEBUGF(NETIF_DEBUG | LWIP_DBG_STATE, ("netif_ip6_addr_set: netif address being changed\n"));
if (netif_ip6_addr_state(netif, addr_idx) & IP6_ADDR_VALID) {
#if LWIP_TCP || LWIP_UDP
ip_addr_t new_ipaddr;
IP_ADDR6(&new_ipaddr, i0, i1, i2, i3);
#endif /* LWIP_TCP || LWIP_UDP */
#if LWIP_TCP
tcp_netif_ip_addr_changed(netif_ip_addr6(netif, addr_idx), &new_ipaddr);
#endif /* LWIP_TCP */
#if LWIP_UDP
udp_netif_ip_addr_changed(netif_ip_addr6(netif, addr_idx), &new_ipaddr);
#endif /* LWIP_UDP */
#if LWIP_RAW
raw_netif_ip_addr_changed(netif_ip_addr6(netif, addr_idx), &new_ipaddr);
#endif /* LWIP_RAW */
}
/* @todo: remove/readd mib2 ip6 entries? */
IP6_ADDR(ip_2_ip6(&(netif->ip6_addr[addr_idx])), i0, i1, i2, i3);
IP_SET_TYPE_VAL(netif->ip6_addr[addr_idx], IPADDR_TYPE_V6);
if (netif_ip6_addr_state(netif, addr_idx) & IP6_ADDR_VALID) {
netif_issue_reports(netif, NETIF_REPORT_TYPE_IPV6);
NETIF_STATUS_CALLBACK(netif);
}
}
LWIP_DEBUGF(NETIF_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("netif: IPv6 address %d of interface %c%c set to %s/0x%"X8_F"\n",
addr_idx, netif->name[0], netif->name[1], ip6addr_ntoa(netif_ip6_addr(netif, addr_idx)),
netif_ip6_addr_state(netif, addr_idx)));
}
