[PATCH v4 18/18] xfrm6_tunnel: exit_net cleanup check added
From: Vasily Averin <hidden>
Date: 2017-11-12 08:51:25
Subsystem:
networking [general], networking [ipsec], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Steffen Klassert, Herbert Xu, Linus Torvalds
Be sure that spi_byaddr and spi_byspi arrays initialized in net_init hook were return to initial state Signed-off-by: Vasily Averin <redacted> --- net/ipv6/xfrm6_tunnel.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c
index 4e438bc..09ec069 100644
--- a/net/ipv6/xfrm6_tunnel.c
+++ b/net/ipv6/xfrm6_tunnel.c@@ -338,6 +338,16 @@ static int __net_init xfrm6_tunnel_net_init(struct net *net) static void __net_exit xfrm6_tunnel_net_exit(struct net *net) { + struct xfrm6_tunnel_net *xfrm6_tn = xfrm6_tunnel_pernet(net); + unsigned int i; + + for (i = 0; i < XFRM6_TUNNEL_SPI_BYADDR_HSIZE; i++) + if (WARN_ON_ONCE(!hlist_empty(&xfrm6_tn->spi_byaddr[i]))) + break; + + for (i = 0; i < XFRM6_TUNNEL_SPI_BYSPI_HSIZE; i++) + if (WARN_ON_ONCE(!hlist_empty(&xfrm6_tn->spi_byspi[i]))) + break; } static struct pernet_operations xfrm6_tunnel_net_ops = {
--
2.7.4