From dbdef938279ec649b25b98a9b61f81f17953ef21 Mon Sep 17 00:00:00 2001 From: Alin Nastac Date: Wed, 5 Feb 2020 14:36:33 +0100 Subject: [PATCH] interface-ip: transfer prefix route ownership for deprecated ipv6addr to kernel When netifd manages the prefix route directly, it will remove it the moment prefix gets deprecated. This will make it impossible for the target to send ICMPv6 errors back to LAN devices still using the deprecated prefix, thus breaking the L-14 requirement of RFC 7084. Signed-off-by: Alin Nastac --- interface-ip.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/interface-ip.c b/interface-ip.c index 91c305b..ff8f219 100644 --- a/interface-ip.c +++ b/interface-ip.c @@ -913,7 +913,7 @@ interface_set_prefix_address(struct device_prefix_assignment *assignment, addr.addr.in6 = assignment->addr; addr.mask = assignment->length; - addr.flags = DEVADDR_INET6 | DEVADDR_OFFLINK; + addr.flags = DEVADDR_INET6; addr.preferred_until = prefix->preferred_until; addr.valid_until = prefix->valid_until; @@ -960,6 +960,7 @@ interface_set_prefix_address(struct device_prefix_assignment *assignment, route.addr = addr.addr; } + addr.flags |= DEVADDR_OFFLINK; if (system_add_address(l3_downlink, &addr)) return; -- 2.25.1