/**
* Mapping from loopback to local network for inbound (port-forwarded)
* connections.
*
* Copy "src" to "dst" with ip_addr_set(dst, src), but if "src" is a
* host's loopback address, copy local network address that maps it to
* "dst".
*/
int
pxremap_inbound_ip4(ip_addr_t *dst, ip_addr_t *src)
{
struct netif *netif;
const struct ip4_lomap *lomap;
unsigned int i;
if (ip4_addr1(src) != IP_LOOPBACKNET) {
ip_addr_set(dst, src);
return PXREMAP_ASIS;
}
if (g_proxy_options->lomap_desc == NULL) {
return PXREMAP_FAILED;
}
#if 0 /* ?TODO: with multiple interfaces we need to consider fwspec::dst */
netif = ip_route(target);
if (netif == NULL) {
return PXREMAP_FAILED;
}
#else
netif = netif_list;
LWIP_ASSERT1(netif != NULL);
LWIP_ASSERT1(netif->next == NULL);
#endif
lomap = g_proxy_options->lomap_desc->lomap;
for (i = 0; i < g_proxy_options->lomap_desc->num_lomap; ++i) {
if (ip_addr_cmp(src, &lomap[i].loaddr)) {
ip_addr_t net;
ip_addr_get_network(&net, &netif->ip_addr, &netif->netmask);
ip4_addr_set_u32(dst,
htonl(ntohl(ip4_addr_get_u32(&net))
+ lomap[i].off));
return PXREMAP_MAPPED;
}
}
return PXREMAP_FAILED;
}
/**
* Inserts ipRouteTable indexes (.ipRouteDest)
* into index tree.
*
* @param dflt non-zero for the default rte, zero for network rte
* @param ni points to network interface for this rte
*
* @todo record sysuptime for _this_ route when it is installed
* (needed for ipRouteAge) in the netif.
*/
void snmp_insert_iprteidx_tree(u8_t dflt, struct netif *ni)
{
u8_t insert = 0;
ip_addr_t dst;
if (dflt != 0)
{
/* the default route 0.0.0.0 */
ip_addr_set_any(&dst);
insert = 1;
}
else
{
/* route to the network address */
ip_addr_get_network(&dst, &ni->ip_addr, &ni->netmask);
/* exclude 0.0.0.0 network (reserved for default rte) */
if (!ip_addr_isany(&dst)) {
insert = 1;
}
}
if (insert)
{
struct mib_list_r
