Fix the flags for RA-derived routes that were saved via "ip -6 route save" and and subsequently restored via "ip -6 route restore", allowing the incoming router advertisements to update them, rather than complain about inability to do so.
Upon the restore of RA-derived saved routes, set the RTF_ADDRCONF to indicate that the source of the route was originally a router advertisement, and set the RTF_DEFAULT or RTF_ROUTEINFO flag depending on prefix length. This can be considered a sister change of f0396f60d7c165018c9b203fb9b89fb224835578, in the other direction. Signed-off-by: Andrew Yourtchenko <ayour...@gmail.com> --- Changes since v1 [1]: * fixed the indentation of the basic blocks to be always a full TAB as per David Miller's review [1] v1: http://marc.info/?l=linux-netdev&m=147135599322285&w=2 net/ipv6/route.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/net/ipv6/route.c b/net/ipv6/route.c index f5b987d..60d95cd 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -2769,6 +2769,16 @@ static int rtm_to_fib6_config(struct sk_buff *skb, struct nlmsghdr *nlh, cfg->fc_protocol = rtm->rtm_protocol; cfg->fc_type = rtm->rtm_type; + if (rtm->rtm_protocol == RTPROT_RA) { + /* RA-derived route: set flags accordingly. */ + cfg->fc_flags |= RTF_ADDRCONF; + if (rtm->rtm_dst_len == 0) { + cfg->fc_flags |= RTF_DEFAULT; + } else { + cfg->fc_flags |= RTF_ROUTEINFO; + } + } + if (rtm->rtm_type == RTN_UNREACHABLE || rtm->rtm_type == RTN_BLACKHOLE || rtm->rtm_type == RTN_PROHIBIT || -- 2.7.4
