| 346 | */ |
| 347 | |
| 348 | static int |
| 349 | ng_iface_output(struct ifnet *ifp, struct mbuf *m, |
| 350 | const struct sockaddr *dst, struct route *ro) |
| 351 | { |
| 352 | uint32_t af; |
| 353 | int error; |
| 354 | |
| 355 | /* Check interface flags */ |
| 356 | if (!((ifp->if_flags & IFF_UP) && |
| 357 | (ifp->if_drv_flags & IFF_DRV_RUNNING))) { |
| 358 | m_freem(m); |
| 359 | return (ENETDOWN); |
| 360 | } |
| 361 | |
| 362 | /* Protect from deadly infinite recursion. */ |
| 363 | error = if_tunnel_check_nesting(ifp, m, NGM_IFACE_COOKIE, |
| 364 | V_ng_iface_max_nest); |
| 365 | if (error) { |
| 366 | m_freem(m); |
| 367 | return (error); |
| 368 | } |
| 369 | |
| 370 | /* BPF writes need to be handled specially. */ |
| 371 | if (dst->sa_family == AF_UNSPEC) |
| 372 | bcopy(dst->sa_data, &af, sizeof(af)); |
| 373 | else |
| 374 | af = dst->sa_family; |
| 375 | |
| 376 | /* Berkeley packet filter */ |
| 377 | ng_iface_bpftap(ifp, m, af); |
| 378 | |
| 379 | if (ALTQ_IS_ENABLED(&ifp->if_snd)) { |
| 380 | M_PREPEND(m, sizeof(sa_family_t), M_NOWAIT); |
| 381 | if (m == NULL) { |
| 382 | if_inc_counter(ifp, IFCOUNTER_OQDROPS, 1); |
| 383 | return (ENOBUFS); |
| 384 | } |
| 385 | *(sa_family_t *)m->m_data = af; |
| 386 | error = (ifp->if_transmit)(ifp, m); |
| 387 | } else |
| 388 | error = ng_iface_send(ifp, m, af); |
| 389 | |
| 390 | return (error); |
| 391 | } |
| 392 | |
| 393 | /* |
| 394 | * Start method is used only when ALTQ is enabled. |
nothing calls this directly
no test coverage detected