diff options
| author |   Neale Ranns <neale@graphiant.com> | 2022-03-25 08:51:58 +0000 |
|---|---|---|
| committer |   Florin Coras <florin.coras@gmail.com> | 2022-03-30 18:31:21 +0000 |
| commit | 80af13d7405c5d9b2510244aa1318bdef6c41fcf (patch) | |
| tree | 27e2eb570977b8609be480eed2ca6bc7f9cff1aa /src/vnet/ip/ip6_punt_drop.c | |
| parent | 299571aca34d36e637e43cfbba6275662d0d7795 (diff) | |
ip: Reference count the enabling the punt feature
Type: fix
otherwise punt features are applied multiple times to the same packet if enabled multiple times
Signed-off-by: Neale Ranns <neale@graphiant.com>
Change-Id: If0cbd9065275f68a10fd6d35e4f7a7c7508245e0
Diffstat (limited to 'src/vnet/ip/ip6_punt_drop.c')
| -rw-r--r-- | src/vnet/ip/ip6_punt_drop.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/vnet/ip/ip6_punt_drop.c b/src/vnet/ip/ip6_punt_drop.c index ab5203d3d6d..32a2ab760ff 100644 --- a/src/vnet/ip/ip6_punt_drop.c +++ b/src/vnet/ip/ip6_punt_drop.c @@ -301,6 +301,8 @@ VNET_FEATURE_INIT (ip6_punt_redirect_node, static) = { #ifndef CLIB_MARCH_VARIANT +static u32 ip6_punt_redirect_enable_counts; + void ip6_punt_redirect_add_paths (u32 rx_sw_if_index, const fib_route_path_t *rpaths) @@ -309,13 +311,16 @@ ip6_punt_redirect_add_paths (u32 rx_sw_if_index, rx_sw_if_index, FIB_FORW_CHAIN_TYPE_UNICAST_IP6, rpaths); - vnet_feature_enable_disable ("ip6-punt", "ip6-punt-redirect", 0, 1, 0, 0); + if (1 == ++ip6_punt_redirect_enable_counts) + vnet_feature_enable_disable ("ip6-punt", "ip6-punt-redirect", 0, 1, 0, 0); } void ip6_punt_redirect_del (u32 rx_sw_if_index) { - vnet_feature_enable_disable ("ip6-punt", "ip6-punt-redirect", 0, 0, 0, 0); + ASSERT (ip6_punt_redirect_enable_counts); + if (0 == --ip6_punt_redirect_enable_counts) + vnet_feature_enable_disable ("ip6-punt", "ip6-punt-redirect", 0, 0, 0, 0); ip_punt_redirect_del (FIB_PROTOCOL_IP6, rx_sw_if_index); } |