dhcpcd-discuss

On 09/01/2020 00:39, Mike Goodman wrote:
> Hi Roy,
>
> Thanks for the response, and a quick one at that.
>
> On the server in question the Arch release (from uname -r) is 5.4.8-arch1-1. and 
> dhcpcd --version gives dhcpcd 8.1.5.
>
> To the best of my knowledge, both are pretty well up to date. I have attempted 
> to make and keep them so.
>
> I understand the scepticism though. Arch when I took on the server was indeed 
> ancient. It is good practice to run pacman -Syy at least as often as pacman -Syu 
> to keep the repos up to date as the hosts often backdate them to their defaults 
> as they run their maintenance schedules.

OK, so up to date.
And to be truthful my brain farted - ipv6_newaddr isn't affected by headers.
I was thinking of if_address6, which is.

Does this patch help at all?
Let me know.

Roy

diff --git a/src/ipv6.c b/src/ipv6.c
index c49300c1..92403912 100644
--- a/src/ipv6.c
+++ b/src/ipv6.c
@@ -1554,7 +1554,9 @@ ipv6_newaddr(struct interface *ifp, const struct in6_addr 
*addr,
        tempaddr = false;
 #endif

-       if (ia->flags & IPV6_AF_AUTOCONF && !tempaddr) {
+       if (prefix_len == 128)
+               goto makepfx;
+       else if (ia->flags & IPV6_AF_AUTOCONF && !tempaddr) {
                ia->prefix = *addr;
                ia->dadcounter = ipv6_makeaddr(&ia->addr, ifp,
                                               &ia->prefix,
@@ -1570,13 +1572,12 @@ ipv6_newaddr(struct interface *ifp, const struct 
in6_addr *addr,
 #else
                return ia;
 #endif
-       } else if (ia->flags & (IPV6_AF_REQUEST | IPV6_AF_DELEGATEDPFX) &&
-                  prefix_len != 128)
-       {
+       } else if (ia->flags & (IPV6_AF_REQUEST | IPV6_AF_DELEGATEDPFX)) {
                ia->prefix = *addr;
                cbp = inet_ntop(AF_INET6, &ia->prefix, buf, sizeof(buf));
                goto paddr;
        } else {
+makepfx:
                ia->addr = *addr;
                if (ipv6_makeprefix(&ia->prefix,
                                    &ia->addr, ia->prefix_len) == -1)