RTM_GETNSID 1120 net/core/net_namespace.c rtnl_register(PF_UNSPEC, RTM_GETNSID, rtnl_net_getid, rtnl_net_dumpid, RTM_GETNSID 76 security/selinux/nlmsgtab.c { RTM_GETNSID, NETLINK_ROUTE_SOCKET__NLMSG_READ },