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- invert u bit on interface id for pseudo interfaces, as suggested in RFC2373.

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- do not perform IPv6 initialization for faith* interface, as they become
  mistakingly IFF_UP.  we are wondering if we should nuke in6_ifattach_p2p().
(sync with recent kame)
This commit is contained in:
itojun 1999-09-05 01:57:10 +00:00
parent e57673d0d4
commit 45538437d9
1 changed files with 13 additions and 6 deletions
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19
sys/netinet6/in6_ifattach.c
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@ -1,4 +1,4 @@
/* $NetBSD: in6_ifattach.c,v 1.4 1999/07/10 19:46:10 thorpej Exp $ */
/* $NetBSD: in6_ifattach.c,v 1.5 1999/09/05 01:57:10 itojun Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@ -81,7 +81,9 @@ ieee802_to_eui64(dst, src)
}
/*
* find first ifid on list of interfaces.
* Find first ifid on list of interfaces.
* This is assumed that ifp0's interface token (for example, IEEE802 MAC)
* is globally unique. We may need to have a flag parameter in the future.
*/
int
in6_ifattach_getifid(ifp0)
@ -149,6 +151,10 @@ found:
first_ifid[2] & 0xff, first_ifid[3] & 0xff,
first_ifid[4] & 0xff, first_ifid[5] & 0xff,
first_ifid[6] & 0xff, first_ifid[7] & 0xff);
/* invert u bit to convert EUI64 to RFC2373 interface ID. */
first_ifid[0] ^= 0x02;
return 0;
} else {
#ifdef DEBUG
@ -161,6 +167,8 @@ found:
/*
* add link-local address to *pseudo* p2p interfaces.
* get called when the first MAC address is made available in in6_ifattach().
*
* XXX I start feeling this as a bad idea. (itojun)
*/
void
in6_ifattach_p2p()
@ -174,10 +182,12 @@ in6_ifattach_p2p()
for (ifp = ifnet.tqh_first; ifp; ifp = ifp->if_list.tqe_next) {
switch (ifp->if_type) {
case IFT_GIF:
case IFT_FAITH:
/* pseudo interfaces - safe to initialize here */
in6_ifattach(ifp, IN6_IFT_P2P, 0, 0);
break;
case IFT_FAITH:
/* this mistakingly becomes IFF_UP */
break;
case IFT_SLIP:
/* IPv6 is not supported */
break;
@ -305,8 +315,6 @@ in6_ifattach(ifp, type, laddr, noloop)
if (laddr == NULL)
break;
ieee802_to_eui64(&ia->ia_addr.sin6_addr.s6_addr8[8], laddr);
/* set global bit */
ia->ia_addr.sin6_addr.s6_addr8[8] |= 0x02;
if (found_first_ifid == 0) {
if (in6_ifattach_getifid(ifp) == 0)
in6_ifattach_p2p();
@ -365,7 +373,6 @@ in6_ifattach(ifp, type, laddr, noloop)
(struct rtentry **)0);
ia->ia_flags |= IFA_ROUTE;
if (type == IN6_IFT_P2P || type == IN6_IFT_P2P802) {
/*
* route local address to loopback