On Tue, Oct 22, 2013 at 06:34:56PM +0200, Daniel Borkmann wrote:
> Commit 8a07eb0a50 ("sctp: Add ASCONF operation on the single-homed host")
> implemented possible use of IPv4 addresses with non SCTP_ADDR_SRC state
> as source address when sending ASCONF (ADD) packets, but IPv6 part for
> that was not implemented in 8a07eb0a50. Therefore, as this is not restricted
> to IPv4-only, fix this up to allow the same for IPv6 addresses in SCTP.
>
> Signed-off-by: Daniel Borkmann <dborkman@xxxxxxxxxx>
> Cc: Michio Honda <micchie@xxxxxxxxxxxxxx>
> ---
> net/sctp/ipv6.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
> index e7b2d4f..96a5591 100644
> --- a/net/sctp/ipv6.c
> +++ b/net/sctp/ipv6.c
> @@ -279,7 +279,9 @@ static void sctp_v6_get_dst(struct sctp_transport *t, union sctp_addr *saddr,
> sctp_v6_to_addr(&dst_saddr, &fl6->saddr, htons(bp->port));
> rcu_read_lock();
> list_for_each_entry_rcu(laddr, &bp->address_list, list) {
> - if (!laddr->valid || (laddr->state != SCTP_ADDR_SRC))
> + if (!laddr->valid || laddr->state == SCTP_ADDR_DEL ||
> + (laddr->state != SCTP_ADDR_SRC &&
> + !asoc->src_out_of_asoc_ok))
> continue;
>
> /* Do not compare against v4 addrs */
> --
> 1.8.3.1
>
> --
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>
Acked-by: Neil Horman <nhorman@xxxxxxxxxxxxx>
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