Wang reported an issue that lksctp's test_getname_v6 seems to fail.
The issue is that we do not copy sk_v6_rcv_saddr over to the new
socket, although the comment above says so regarding rcv_saddr.
Commit 914e1c8b6980 ("sctp: Inherit all socket options from parent
correctly.") originally moved that over to sctp_copy_sock(), but
after commit efe4208f47f9 ("ipv6: make lookups simpler and faster")
this no longer holds and the actual value of sk_v6_rcv_saddr was
no longer being migrated.
With this patch, the lksctp test suite passes again for IPv6.
Fixes: efe4208f47f9 ("ipv6: make lookups simpler and faster")
Signed-off-by: Daniel Borkmann <dborkman@xxxxxxxxxx>
Signed-off-by: Wang Weidong <wangweidong1@xxxxxxxxxx>
Cc: Eric Dumazet <eric.dumazet@xxxxxxxxx>
---
net/sctp/ipv6.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 7567e6f..be08592 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -661,6 +661,7 @@ static struct sock *sctp_v6_create_accept_sk(struct sock *sk,
* and getpeername().
*/
sctp_v6_to_sk_daddr(&asoc->peer.primary_addr, newsk);
+ newsk->sk_v6_rcv_saddr = sk->sk_v6_rcv_saddr;
sk_refcnt_debug_inc(newsk);
--
1.8.3.1
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