diff options
Diffstat (limited to 'sys/netinet6/in6_pcb.c')
| -rw-r--r-- | sys/netinet6/in6_pcb.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/sys/netinet6/in6_pcb.c b/sys/netinet6/in6_pcb.c index 9175a65..de4f1a8 100644 --- a/sys/netinet6/in6_pcb.c +++ b/sys/netinet6/in6_pcb.c @@ -932,6 +932,45 @@ in6_pcblookup_local(pcbinfo, laddr, lport_arg, wild_okay) } } +void +in6_pcbpurgeif0(head, ifp) + struct in6pcb *head; + struct ifnet *ifp; +{ + struct in6pcb *in6p; + struct ip6_moptions *im6o; + struct in6_multi_mship *imm, *nimm; + + for (in6p = head; in6p != NULL; in6p = LIST_NEXT(in6p, inp_list)) { + im6o = in6p->in6p_moptions; + if ((in6p->inp_vflag & INP_IPV6) && + im6o) { + /* + * Unselect the outgoing interface if it is being + * detached. + */ + if (im6o->im6o_multicast_ifp == ifp) + im6o->im6o_multicast_ifp = NULL; + + /* + * Drop multicast group membership if we joined + * through the interface being detached. + * XXX controversial - is it really legal for kernel + * to force this? + */ + for (imm = im6o->im6o_memberships.lh_first; + imm != NULL; imm = nimm) { + nimm = imm->i6mm_chain.le_next; + if (imm->i6mm_maddr->in6m_ifp == ifp) { + LIST_REMOVE(imm, i6mm_chain); + in6_delmulti(imm->i6mm_maddr); + free(imm, M_IPMADDR); + } + } + } + } +} + /* * Check for alternatives when higher level complains * about service problems. For now, invalidate cached |
