From: Nicolas Dichtel <[email protected]> commit b57708add31494175be741ed3fd24023b50c3423 upstream
This patch allows to switch the netns when packet is encapsulated or decapsulated. In other word, the encapsulated packet is received in a netns, where the lookup is done to find the tunnel. Once the tunnel is found, the packet is decapsulated and injecting into the corresponding interface which stands to another netns. When one of the two netns is removed, the tunnel is destroyed. Signed-off-by: Nicolas Dichtel <[email protected]> Signed-off-by: David S. Miller <[email protected]> Signed-off-by: Jianchuan Wang <[email protected]> --- net/ipv4/ip_gre.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index 94213c8..c5a557a 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -410,7 +410,7 @@ static int ipgre_open(struct net_device *dev) struct flowi4 fl4; struct rtable *rt; - rt = ip_route_output_gre(dev_net(dev), &fl4, + rt = ip_route_output_gre(t->net, &fl4, t->parms.iph.daddr, t->parms.iph.saddr, t->parms.o_key, @@ -434,7 +434,7 @@ static int ipgre_close(struct net_device *dev) if (ipv4_is_multicast(t->parms.iph.daddr) && t->mlink) { struct in_device *in_dev; - in_dev = inetdev_by_index(dev_net(dev), t->mlink); + in_dev = inetdev_by_index(t->net, t->mlink); if (in_dev) ip_mc_dec_group(in_dev, t->parms.iph.daddr); } @@ -478,7 +478,7 @@ static void __gre_tunnel_init(struct net_device *dev) dev->needed_headroom = LL_MAX_HEADER + sizeof(struct iphdr) + 4; dev->mtu = ETH_DATA_LEN - sizeof(struct iphdr) - 4; - dev->features |= NETIF_F_NETNS_LOCAL | GRE_FEATURES; + dev->features |= GRE_FEATURES; dev->hw_features |= GRE_FEATURES; if (!(tunnel->parms.o_flags & TUNNEL_SEQ)) { -- 1.9.1 -- _______________________________________________ linux-yocto mailing list [email protected] https://lists.yoctoproject.org/listinfo/linux-yocto
