* This routine does actual delivery of the packet into the * netgraph(4). It is called from ng_iface_start() and * ng_iface_output(). */
| 431 | * ng_iface_output(). |
| 432 | */ |
| 433 | static int |
| 434 | ng_iface_send(struct ifnet *ifp, struct mbuf *m, sa_family_t sa) |
| 435 | { |
| 436 | struct rm_priotracker priv_tracker; |
| 437 | const priv_p priv = (priv_p) ifp->if_softc; |
| 438 | const iffam_p iffam = get_iffam_from_af(sa); |
| 439 | hook_p hook; |
| 440 | int error; |
| 441 | int len; |
| 442 | |
| 443 | /* Check address family to determine hook (if known) */ |
| 444 | if (iffam == NULL) { |
| 445 | m_freem(m); |
| 446 | log(LOG_WARNING, "%s: can't handle af%d\n", ifp->if_xname, sa); |
| 447 | return (EAFNOSUPPORT); |
| 448 | } |
| 449 | |
| 450 | /* Copy length before the mbuf gets invalidated. */ |
| 451 | len = m->m_pkthdr.len; |
| 452 | |
| 453 | PRIV_RLOCK(priv, &priv_tracker); |
| 454 | hook = *get_hook_from_iffam(priv, iffam); |
| 455 | if (hook == NULL) { |
| 456 | NG_FREE_M(m); |
| 457 | PRIV_RUNLOCK(priv, &priv_tracker); |
| 458 | return ENETDOWN; |
| 459 | } |
| 460 | NG_HOOK_REF(hook); |
| 461 | PRIV_RUNLOCK(priv, &priv_tracker); |
| 462 | |
| 463 | NG_OUTBOUND_THREAD_REF(); |
| 464 | NG_SEND_DATA_ONLY(error, hook, m); |
| 465 | NG_OUTBOUND_THREAD_UNREF(); |
| 466 | NG_HOOK_UNREF(hook); |
| 467 | |
| 468 | /* Update stats. */ |
| 469 | if (error == 0) { |
| 470 | if_inc_counter(ifp, IFCOUNTER_OBYTES, len); |
| 471 | if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); |
| 472 | } |
| 473 | |
| 474 | return (error); |
| 475 | } |
| 476 | |
| 477 | #ifdef DEBUG |
| 478 | /* |
no test coverage detected