From a21f3f997c73ced682129aedd372bb6b53041510 Mon Sep 17 00:00:00 2001 From: Benjamin Thery Date: Wed, 10 Dec 2008 16:28:44 -0800 Subject: [PATCH] netns: ip6mr: declare mroute_do_assert and mroute_do_pim per-namespace Preliminary work to make IPv6 multicast forwarding netns-aware. Declare IPv6 multicast forwarding variables 'mroute_do_assert' and 'mroute_do_pim' per-namespace in struct netns_ipv6. At the moment, these variables are only referenced in init_net. Signed-off-by: Benjamin Thery Signed-off-by: David S. Miller --- include/net/netns/ipv6.h | 2 ++ net/ipv6/ip6mr.c | 26 ++++++++++---------------- 2 files changed, 12 insertions(+), 16 deletions(-) diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h index 30572f3..919cb0f 100644 --- a/include/net/netns/ipv6.h +++ b/include/net/netns/ipv6.h @@ -61,6 +61,8 @@ struct netns_ipv6 { struct mif_device *vif6_table; int maxvif; atomic_t cache_resolve_queue_len; + int mroute_do_assert; + int mroute_do_pim; #endif }; #endif diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c index 077c819..2d2ac23 100644 --- a/net/ipv6/ip6mr.c +++ b/net/ipv6/ip6mr.c @@ -61,13 +61,6 @@ static DEFINE_RWLOCK(mrt_lock); #define MIF_EXISTS(_net, _idx) ((_net)->ipv6.vif6_table[_idx].dev != NULL) -static int mroute_do_assert; /* Set in PIM assert */ -#ifdef CONFIG_IPV6_PIMSM_V2 -static int mroute_do_pim; -#else -#define mroute_do_pim 0 -#endif - static struct mfc6_cache *mfc_unres_queue; /* Queue of unresolved entries */ /* Special spinlock for queue of unresolved entries */ @@ -1306,7 +1299,7 @@ int ip6_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, int int v; if (get_user(v, (int __user *)optval)) return -EFAULT; - mroute_do_assert = !!v; + init_net.ipv6.mroute_do_assert = !!v; return 0; } @@ -1319,10 +1312,10 @@ int ip6_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, int v = !!v; rtnl_lock(); ret = 0; - if (v != mroute_do_pim) { - mroute_do_pim = v; - mroute_do_assert = v; - if (mroute_do_pim) + if (v != init_net.ipv6.mroute_do_pim) { + init_net.ipv6.mroute_do_pim = v; + init_net.ipv6.mroute_do_assert = v; + if (init_net.ipv6.mroute_do_pim) ret = inet6_add_protocol(&pim6_protocol, IPPROTO_PIM); else @@ -1361,11 +1354,11 @@ int ip6_mroute_getsockopt(struct sock *sk, int optname, char __user *optval, break; #ifdef CONFIG_IPV6_PIMSM_V2 case MRT6_PIM: - val = mroute_do_pim; + val = init_net.ipv6.mroute_do_pim; break; #endif case MRT6_ASSERT: - val = mroute_do_assert; + val = init_net.ipv6.mroute_do_assert; break; default: return -ENOPROTOOPT; @@ -1553,13 +1546,14 @@ static int ip6_mr_forward(struct sk_buff *skb, struct mfc6_cache *cache) cache->mfc_un.res.wrong_if++; true_vifi = ip6mr_find_vif(skb->dev); - if (true_vifi >= 0 && mroute_do_assert && + if (true_vifi >= 0 && init_net.ipv6.mroute_do_assert && /* pimsm uses asserts, when switching from RPT to SPT, so that we cannot check that packet arrived on an oif. It is bad, but otherwise we would need to move pretty large chunk of pimd to kernel. Ough... --ANK */ - (mroute_do_pim || cache->mfc_un.res.ttls[true_vifi] < 255) && + (init_net.ipv6.mroute_do_pim || + cache->mfc_un.res.ttls[true_vifi] < 255) && time_after(jiffies, cache->mfc_un.res.last_assert + MFC_ASSERT_THRESH)) { cache->mfc_un.res.last_assert = jiffies; -- 2.7.4