- req.dst.rta.rta_type = RTA_DST;
- req.dst.rta.rta_len = sizeof(req.dst);
- memcpy(req.dst.ipaddr, host->ipaddr, sizeof(req.dst.ipaddr));
+ req.rt.rtm_type = RTN_UNICAST;
+ } else {
+ req.nl.nlmsg_type = RTM_DELRULE;
+ req.rt.rtm_type = RTN_UNSPEC;
+ }
+
+ send(rtnl_sock.fd, &req, req.nl.nlmsg_len, 0);
+ rtnl_flush();
+}
+
+struct rtnl_addr {
+ struct rtattr rta;
+ uint8_t ipaddr[4];
+} __packed;
+
+static struct rtnl_addr *
+rtnl_add_addr(struct rtnl_addr *addr, int *len, int type, const uint8_t *ipaddr)
+{
+ addr->rta.rta_type = type;
+ memcpy(addr->ipaddr, ipaddr, 4);
+ *len += sizeof(*addr);
+ return addr + 1;
+}
+
+static void
+rtnl_route_request(struct relayd_interface *rif, struct relayd_host *host,
+ struct relayd_route *route, bool add)
+{
+ static struct {
+ struct nlmsghdr nl;
+ struct rtmsg rt;
+ struct {
+ struct rtattr rta;
+ int table;
+ } __packed table;
+ struct {
+ struct rtattr rta;
+ int ifindex;
+ } __packed dev;
+ struct rtnl_addr addr[3];
+ } __packed req = {
+ .rt = {
+ .rtm_family = AF_INET,
+ .rtm_dst_len = 32,
+ .rtm_table = RT_TABLE_MAIN,
+ },
+ .table.rta = {
+ .rta_type = RTA_TABLE,
+ .rta_len = sizeof(req.table),
+ },
+ .dev.rta = {
+ .rta_type = RTA_OIF,
+ .rta_len = sizeof(req.dev),
+ },
+ .addr[0].rta.rta_len = sizeof(struct rtnl_addr),
+ .addr[1].rta.rta_len = sizeof(struct rtnl_addr),
+ .addr[2].rta.rta_len = sizeof(struct rtnl_addr),
+ };
+ int pktlen = sizeof(req) - sizeof(req.addr);
+ struct rtnl_addr *addr = &req.addr[0];
+ const char *ifname = "loopback";