From 6178bdafa6a318d50cc8ad82f07c6c798c7024ef Mon Sep 17 00:00:00 2001 From: Benoît Ganne Date: Wed, 4 Nov 2020 10:02:03 +0100 Subject: feature: reset interface feature arc on interface deletion MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When removing an interface we must reset all per-interface per-feature arc data to ensure we do not get wrong feature arc config data when the sw_if_index is recycled. Type: fix Change-Id: I8c9d850d7c62b7b77193da4258ab5fb9bdda85a6 Signed-off-by: Benoît Ganne --- src/vnet/feature/feature.c | 67 +++++++++++++++++++++++++++++++++++----------- 1 file changed, 51 insertions(+), 16 deletions(-) (limited to 'src/vnet/feature') diff --git a/src/vnet/feature/feature.c b/src/vnet/feature/feature.c index 1bdd695e1de..c93f586c349 100644 --- a/src/vnet/feature/feature.c +++ b/src/vnet/feature/feature.c @@ -37,7 +37,7 @@ vnet_feature_register (vnet_feature_update_cb_t cb, void *data) } static void -vent_feature_reg_invoke (u32 sw_if_index, u8 arc_index, u8 is_enable) +vnet_feature_reg_invoke (u32 sw_if_index, u8 arc_index, u8 is_enable) { vnet_feature_upd_registration_t *reg; @@ -293,7 +293,7 @@ vnet_feature_enable_disable_with_index (u8 arc_index, u32 feature_index, fm->sw_if_index_has_features[arc_index] = clib_bitmap_set (fm->sw_if_index_has_features[arc_index], sw_if_index, (feature_count > 0)); - vent_feature_reg_invoke (sw_if_index, arc_index, (feature_count > 0)); + vnet_feature_reg_invoke (sw_if_index, arc_index, (feature_count > 0)); fm->feature_count_by_sw_if_index[arc_index][sw_if_index] = feature_count; return 0; @@ -515,9 +515,7 @@ vnet_interface_features_show (vlib_main_t * vm, u32 sw_if_index, int verbose) vlib_cli_output (vm, "\n%s:", areg->arc_name); areg = areg->next; - if (NULL == cm[feature_arc].config_index_by_sw_if_index || - vec_len (cm[feature_arc].config_index_by_sw_if_index) <= - sw_if_index) + if (!vnet_have_features (feature_arc, sw_if_index)) { vlib_cli_output (vm, " none configured"); continue; @@ -525,17 +523,8 @@ vnet_interface_features_show (vlib_main_t * vm, u32 sw_if_index, int verbose) current_config_index = vec_elt (cm[feature_arc].config_index_by_sw_if_index, sw_if_index); - - if (current_config_index == ~0) - { - vlib_cli_output (vm, " none configured"); - continue; - } - - ASSERT (current_config_index - < vec_len (vcm->config_pool_index_by_user_index)); - - cfg_index = vcm->config_pool_index_by_user_index[current_config_index]; + cfg_index = + vec_elt (vcm->config_pool_index_by_user_index, current_config_index); cfg = pool_elt_at_index (vcm->config_pool, cfg_index); for (i = 0; i < vec_len (cfg->features); i++) @@ -662,6 +651,52 @@ VLIB_CLI_COMMAND (set_interface_feature_command, static) = { }; /* *INDENT-ON* */ +static clib_error_t * +vnet_feature_add_del_sw_interface (vnet_main_t * vnm, u32 sw_if_index, + u32 is_add) +{ + vnet_feature_main_t *fm = &feature_main; + const vnet_feature_arc_registration_t *far; + + if (is_add) + return 0; + + /* + * remove all enabled features from an interface on deletion + */ + for (far = fm->next_arc; far != 0; far = far->next) + { + const u8 arc_index = far->feature_arc_index; + vnet_feature_config_main_t *cm = + vec_elt_at_index (fm->feature_config_mains, arc_index); + const u32 ci = + vec_len (cm->config_index_by_sw_if_index) <= + sw_if_index ? ~0 : vec_elt (cm->config_index_by_sw_if_index, + sw_if_index); + + if (~0 == ci) + continue; + + fm->sw_if_index_has_features[arc_index] = + clib_bitmap_set (fm->sw_if_index_has_features[arc_index], sw_if_index, + 0); + + vnet_feature_reg_invoke (sw_if_index, arc_index, 0); + + if (vec_len (fm->feature_count_by_sw_if_index[arc_index]) > sw_if_index) + vec_elt (fm->feature_count_by_sw_if_index[arc_index], sw_if_index) = + 0; + + vec_elt (cm->config_index_by_sw_if_index, sw_if_index) = ~0; + vnet_config_del (&cm->config_main, ci); + } + + return 0; +} + +VNET_SW_INTERFACE_ADD_DEL_FUNCTION_PRIO (vnet_feature_add_del_sw_interface, + VNET_ITF_FUNC_PRIORITY_HIGH); + /* * fd.io coding-style-patch-verification: ON * -- cgit 1.2.3-korg