bsd/netinet6/in6_src.c

196  * Regardless of error, it will return an ifp with a reference held if the
198  * if the returned ifp is valid and release its reference at all times.
207 	struct ifnet *ifp = NULL;
250 		    &ifp)) != 0) {
266 		if (ifp != NULL) {
267 			*errorp = in6_setscope(&srcsock.sin6_addr, ifp, NULL);
312 	    &ifp)) != 0) {
317 	*errorp = in6_setscope(&dst, ifp, &odstzone);
343 		if (in6_setscope(&src, ifp, &osrczone) ||
408 		if (ia_best->ia_ifp == ifp && ia->ia_ifp != ifp)
410 		if (ia_best->ia_ifp != ifp && ia->ia_ifp == ifp)
546 		/* if ifp is non-NULL, refcnt held in in6_selectif() */
547 		*ifpp = ifp;
548 	} else if (ifp != NULL) {
549 		ifnet_release(ifp);
564  * error, it will return an ifp with a reference held if the caller provides
566  * returned ifp is valid and release its reference at all times.
577 	struct ifnet *ifp = NULL, *ifp0 = NULL;
646 		/* ifp may be NULL if detached or out of range */
647 		ifp = ifp0 =
657 			if (ifp == NULL)
671 		if ((ifp = ifp0 = mopts->im6o_multicast_ifp) != NULL) {
845 		ifp = ifp0 = ron->ro_rt->rt_ifp;
915 		ifp = ifp0 = ro->ro_rt->rt_ifp;
935 		    (ifa->ifa_ifp != ifp && ifp != lo_ifp) ||
954 						    ifscope, if_name(ifp),
960 						    ifscope, if_name(ifp));
970 				ifp = NULL;	/* ditch ifp; keep ifp0 */
986 		if (ifp != NULL && opts != NULL &&
996 			if (!(ifp->if_flags & IFF_LOOPBACK) && ifp->if_index !=
1007 		    ((ifp != NULL && ifp->if_type == IFT_CELLULAR) ||
1016 			ifp = NULL;	/* ditch ifp; keep ifp0 */
1021 	if (ifp == NULL && (route == NULL || route->ro_rt == NULL)) {
1032 	 * We'll return ifp regardless of error, so pick it up from ifp0
1034 	 * releasing the ifp if it is non-NULL.
1036 	ifp = ifp0;
1038 		if (ifp != NULL)
1039 			ifnet_reference(ifp);	/* for caller */
1040 		*retifp = ifp;
1050 		    (ifp != NULL) ? if_name(ifp) : "NONE", error);
1060  * Regardless of error, it will return an ifp with a reference held if the
1062  * if the returned ifp is valid and release its reference at all times.
1106 	 * back to ourselves, the ifp would be the loopback interface.
1124 	 * retifp might point to a valid ifp with a reference held;
1131  * Regardless of error, it will return an ifp with a reference held if the
1133  * if the returned ifp is valid and release its reference at all times.
1158 	struct ifnet *ifp)
1164 		if (ifp && ifp->if_index < nd_ifinfo_indexlim) {
1166 			struct nd_ifinfo *ndi = &nd_ifinfo[ifp->if_index];
1661  * XXX actually, it is over-specification to return ifp against sin6_scope_id.
1664  * we may want to change the function to return something other than ifp.
1674 	struct ifnet *ifp = NULL;
1715 			ifp = ifindex2ifnet[pi->ipi6_ifindex];
1719 			ifp = im6o_multicast_ifp;
1720 			in6->s6_addr16[1] = htons(ifp->if_index);
1731 			ifp = ifindex2ifnet[scopeid];
1738 			if (ifp != NULL)
1739 				ifnet_reference(ifp);	/* for caller */
1740 			*ifpp = ifp;
1758 	struct ifnet *ifp)
1784 			if (ifp && ifp->if_index != scopeid)