Attachment 235692 Details for Bug 263986 – workaround/wild hack when using ULA

[patch] workaround/wild hack when using ULA

WildHack_AvoidRouteDeletionForULA.patch (text/plain), 1.48 KB, created by Frank Behrens on 2022-08-05 12:52:44 UTC

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Creator: Frank Behrens

Created: 2022-08-05 12:52:44 UTC

Size: 1.48 KB

patch

obsolete

>// Not a FIX, workaround for special case only!
>
>--- a/sys/netinet6/in6.h
>+++ b/sys/netinet6/in6.h
>@@ -297,6 +297,8 @@ extern const struct in6_addr in6addr_linklocal_allv2routers;
>        (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80))
> #define IN6_IS_ADDR_SITELOCAL(a)       \
>        (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0))
>+#define IN6_IS_ADDR_ULA(a)     \
>+       ((a)->s6_addr[0] == 0xfd)
>
> /*
>  * Multicast
>--- a/sys/netinet6/nd6_rtr.c
>+++ b/sys/netinet6/nd6_rtr.c
>@@ -1892,6 +1892,7 @@ pfxlist_onlink_check(void)
>                LIST_FOREACH(pr, &V_nd_prefix, ndpr_entry) {
>                        /* XXX: a link-local prefix should never be detached */
>                        if (IN6_IS_ADDR_LINKLOCAL(&pr->ndpr_prefix.sin6_addr) ||
>+                            IN6_IS_ADDR_ULA(&pr->ndpr_prefix.sin6_addr) ||     /* FB: wild hack to avoid deletion of link routes for local provided prefix */
>                            pr->ndpr_raf_onlink == 0 ||
>                            pr->ndpr_raf_auto == 0)
>                                continue;
>@@ -1928,6 +1929,7 @@ pfxlist_onlink_check(void)
>                int e;
>
>                if (IN6_IS_ADDR_LINKLOCAL(&pr->ndpr_prefix.sin6_addr) ||
>+                    IN6_IS_ADDR_ULA(&pr->ndpr_prefix.sin6_addr) ||     /* FB: wild hack to avoid deletion of link routes for local provided prefix */
>                    pr->ndpr_raf_onlink == 0 ||
>                    pr->ndpr_raf_auto == 0)
>                        continue;
>

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Attachments on bug 263986: 235692