From a424dd1b2e345bd8ebc5088fcd42d721a2ac00d7 Mon Sep 17 00:00:00 2001 From: Nathan Skrzypczak Date: Fri, 20 Aug 2021 15:53:43 +0200 Subject: ip: unlock_fib on if delete On interface delete we were not removing the lock taken by a previous ip_table_bind() call thus preventing the VRFs to be removed. Type: fix Change-Id: I11abbb51a09b45cd3390b23d5d601d029c5ea485 Signed-off-by: Nathan Skrzypczak --- src/vnet/ip/ip.h | 2 ++ src/vnet/ip/ip4_forward.c | 9 +++++++++ src/vnet/ip/ip6_forward.c | 9 +++++++++ 3 files changed, 20 insertions(+) (limited to 'src/vnet/ip') diff --git a/src/vnet/ip/ip.h b/src/vnet/ip/ip.h index 131d6879c14..c2a38016ba5 100644 --- a/src/vnet/ip/ip.h +++ b/src/vnet/ip/ip.h @@ -267,6 +267,8 @@ void ip_table_create (fib_protocol_t fproto, u32 table_id, u8 is_api, void ip_table_delete (fib_protocol_t fproto, u32 table_id, u8 is_api); +void fib_table_bind (fib_protocol_t fproto, u32 sw_if_index, u32 fib_index); +void mfib_table_bind (fib_protocol_t fproto, u32 sw_if_index, u32 mfib_index); int ip_table_bind (fib_protocol_t fproto, u32 sw_if_index, u32 table_id); u32 ip_table_get_unused_id (fib_protocol_t fproto); diff --git a/src/vnet/ip/ip4_forward.c b/src/vnet/ip/ip4_forward.c index 58af706e2b2..de8e8e8538f 100644 --- a/src/vnet/ip/ip4_forward.c +++ b/src/vnet/ip/ip4_forward.c @@ -1090,6 +1090,15 @@ ip4_sw_interface_add_del (vnet_main_t * vnm, u32 sw_if_index, u32 is_add) })); /* *INDENT-ON* */ ip4_mfib_interface_enable_disable (sw_if_index, 0); + + if (0 != im4->fib_index_by_sw_if_index[sw_if_index]) + fib_table_bind (FIB_PROTOCOL_IP4, sw_if_index, 0); + if (0 != im4->mfib_index_by_sw_if_index[sw_if_index]) + mfib_table_bind (FIB_PROTOCOL_IP4, sw_if_index, 0); + + /* Erase the lookup tables just in case */ + im4->fib_index_by_sw_if_index[sw_if_index] = ~0; + im4->mfib_index_by_sw_if_index[sw_if_index] = ~0; } vnet_feature_enable_disable ("ip4-unicast", "ip4-not-enabled", sw_if_index, diff --git a/src/vnet/ip/ip6_forward.c b/src/vnet/ip/ip6_forward.c index 833ce142999..9ee3d11cef2 100644 --- a/src/vnet/ip/ip6_forward.c +++ b/src/vnet/ip/ip6_forward.c @@ -717,6 +717,15 @@ ip6_sw_interface_add_del (vnet_main_t * vnm, u32 sw_if_index, u32 is_add) })); /* *INDENT-ON* */ ip6_mfib_interface_enable_disable (sw_if_index, 0); + + if (0 != im6->fib_index_by_sw_if_index[sw_if_index]) + fib_table_bind (FIB_PROTOCOL_IP6, sw_if_index, 0); + if (0 != im6->mfib_index_by_sw_if_index[sw_if_index]) + mfib_table_bind (FIB_PROTOCOL_IP6, sw_if_index, 0); + + /* Erase the lookup tables just in case */ + im6->fib_index_by_sw_if_index[sw_if_index] = ~0; + im6->mfib_index_by_sw_if_index[sw_if_index] = ~0; } vnet_feature_enable_disable ("ip6-unicast", "ip6-not-enabled", sw_if_index, -- cgit 1.2.3-korg