diff options
| -rw-r--r-- | src/vnet/feature/feature.c | 57 | ||||
| -rw-r--r-- | src/vnet/feature/feature.h | 4 |
2 files changed, 60 insertions, 1 deletions
diff --git a/src/vnet/feature/feature.c b/src/vnet/feature/feature.c index 09dd9cc965f..1bdd695e1de 100644 --- a/src/vnet/feature/feature.c +++ b/src/vnet/feature/feature.c @@ -15,7 +15,6 @@ #include <vnet/feature/feature.h> - vnet_feature_main_t feature_main; typedef struct vnet_feature_upd_registration_t_ @@ -321,6 +320,62 @@ vnet_feature_enable_disable (const char *arc_name, const char *node_name, n_feature_config_bytes); } +int +vnet_feature_is_enabled (const char *arc_name, const char *feature_node_name, + u32 sw_if_index) +{ + vnet_feature_main_t *fm = &feature_main; + vnet_feature_config_main_t *cm; + vnet_config_main_t *ccm; + vnet_config_t *current_config; + vnet_config_feature_t *f; + u32 feature_index; + u32 ci; + u8 arc_index; + u32 *p; + + arc_index = vnet_get_feature_arc_index (arc_name); + + /* No such arc? */ + if (arc_index == (u8) ~ 0) + return VNET_API_ERROR_INVALID_VALUE; + + feature_index = vnet_get_feature_index (arc_index, feature_node_name); + + /* No such feature? */ + if (feature_index == (u32) ~ 0) + return VNET_API_ERROR_INVALID_VALUE_2; + + cm = &fm->feature_config_mains[arc_index]; + + if (sw_if_index < vec_len (cm->config_index_by_sw_if_index)) + ci = vec_elt (cm->config_index_by_sw_if_index, sw_if_index); + else + /* sw_if_index out of range, certainly not enabled */ + return VNET_API_ERROR_INVALID_SW_IF_INDEX; + + /* No features were ever configured? */ + if (ci == ~0) + return 0; + + ccm = &cm->config_main; + + p = heap_elt_at_index (ccm->config_string_heap, ci); + + current_config = pool_elt_at_index (ccm->config_pool, p[-1]); + + /* Find feature with the required index */ + vec_foreach (f, current_config->features) + { + if (f->feature_index == feature_index) + /* Feature was enabled */ + return 1; + } + /* feature wasn't enabled */ + return 0; +} + + u32 vnet_feature_modify_end_node (u8 arc_index, u32 sw_if_index, u32 end_node_index) diff --git a/src/vnet/feature/feature.h b/src/vnet/feature/feature.h index 6eb6de3fba7..9aa32182ef6 100644 --- a/src/vnet/feature/feature.h +++ b/src/vnet/feature/feature.h @@ -488,6 +488,10 @@ typedef void (*vnet_feature_update_cb_t) (u32 sw_if_index, extern void vnet_feature_register (vnet_feature_update_cb_t cb, void *data); +int +vnet_feature_is_enabled (const char *arc_name, const char *feature_node_name, + u32 sw_if_index); + #endif /* included_feature_h */ /* |