void netlink_neigh_info::fill(struct rtnl_neigh* neigh)
{
if (!neigh)
return;
nl_addr* addr;
char addr_str[ADDR_MAX_STR_LEN + 1];
addr = rtnl_neigh_get_dst(neigh);
if (addr) {
dst_addr_str = nl_addr2str(addr, addr_str, ADDR_MAX_STR_LEN);
dst_addr = (unsigned char*)nl_addr_get_binary_addr(addr);
dst_addr_len = nl_addr_get_len(addr);
}
addr = rtnl_neigh_get_lladdr(neigh);
if (addr) {
lladdr_str = nl_addr2str(addr, addr_str, ADDR_MAX_STR_LEN);
lladdr = (unsigned char*)nl_addr_get_binary_addr(addr);
lladdr_len = nl_addr_get_len(addr);
}
//addr_family = rtnl_neigh_get_family(neigh);
flags = rtnl_neigh_get_flags(neigh);
ifindex = rtnl_neigh_get_ifindex(neigh);
state = rtnl_neigh_get_state(neigh);
type = rtnl_neigh_get_type(neigh);
}
int netlink_wrapper::get_neigh(const char* ipaddr, netlink_neigh_info* new_neigh_info)
{
auto_unlocker lock(m_cache_lock);
nl_logfunc("--->netlink_listener::get_neigh");
nl_object* obj;
rtnl_neigh* neigh;
char addr_str[256];
BULLSEYE_EXCLUDE_BLOCK_START
if (!new_neigh_info) {
nl_logerr("Illegal argument. user pass NULL neigh_info to fill");
return -1;
}
BULLSEYE_EXCLUDE_BLOCK_END
obj = nl_cache_get_first(m_cache_neigh);
while (obj) {
nl_object_get(obj); //Acquire a reference on a cache object. cache won't use/free it until calling to nl_object_put(obj)
neigh = (rtnl_neigh*) obj;
nl_addr* addr = rtnl_neigh_get_dst(neigh);
if (addr) {
nl_addr2str(addr, addr_str, 255);
if (!strcmp(addr_str, ipaddr)) {
new_neigh_info->fill(neigh);
nl_object_put(obj);
nl_logdbg("neigh - DST_IP:%s LLADDR:%s", addr_str, new_neigh_info->lladdr_str.c_str() );
nl_logfunc("<---netlink_listener::get_neigh");
return 1;
}
}
nl_object_put(obj);
obj = nl_cache_get_next(obj);
}
nl_logfunc("<---netlink_listener::get_neigh");
return 0;
}
