diff options
Diffstat (limited to 'src/vnet/fib/fib_entry.h')
| -rw-r--r-- | src/vnet/fib/fib_entry.h | 60 |
1 files changed, 50 insertions, 10 deletions
diff --git a/src/vnet/fib/fib_entry.h b/src/vnet/fib/fib_entry.h index 4e88314005e..92333e9cc03 100644 --- a/src/vnet/fib/fib_entry.h +++ b/src/vnet/fib/fib_entry.h @@ -128,9 +128,16 @@ typedef enum fib_source_t_ { */ FIB_SOURCE_DEFAULT_ROUTE, /** + * The interpose source. + * This is not a real source, so don't use it to source a prefix. + * It exists here to provide a value against which to register to the + * VFT for providing the interpose actions to a real source. + */ + FIB_SOURCE_INTERPOSE, + /** * Marker. add new entries before this one. */ - FIB_SOURCE_LAST = FIB_SOURCE_DEFAULT_ROUTE, + FIB_SOURCE_LAST = FIB_SOURCE_INTERPOSE, } __attribute__ ((packed)) fib_source_t; STATIC_ASSERT (sizeof(fib_source_t) == 1, @@ -162,6 +169,7 @@ STATIC_ASSERT (sizeof(fib_source_t) == 1, [FIB_SOURCE_URPF_EXEMPT] = "urpf-exempt", \ [FIB_SOURCE_DEFAULT_ROUTE] = "default-route", \ [FIB_SOURCE_PLUGIN_HI] = "plugin-hi", \ + [FIB_SOURCE_INTERPOSE] = "interpose", \ } #define FOR_EACH_FIB_SOURCE(_item) \ @@ -223,9 +231,15 @@ typedef enum fib_entry_attribute_t_ { */ FIB_ENTRY_ATTRIBUTE_COVERED_INHERIT, /** + * The interpose attribute. + * place the forwarding provided by the source infront of the forwarding + * provided by the best source, or failing that, by the cover. + */ + FIB_ENTRY_ATTRIBUTE_INTERPOSE, + /** * Marker. add new entries before this one. */ - FIB_ENTRY_ATTRIBUTE_LAST = FIB_ENTRY_ATTRIBUTE_COVERED_INHERIT, + FIB_ENTRY_ATTRIBUTE_LAST = FIB_ENTRY_ATTRIBUTE_INTERPOSE, } fib_entry_attribute_t; #define FIB_ENTRY_ATTRIBUTES { \ @@ -239,6 +253,7 @@ typedef enum fib_entry_attribute_t_ { [FIB_ENTRY_ATTRIBUTE_MULTICAST] = "multicast", \ [FIB_ENTRY_ATTRIBUTE_NO_ATTACHED_EXPORT] = "no-attached-export", \ [FIB_ENTRY_ATTRIBUTE_COVERED_INHERIT] = "covered-inherit", \ + [FIB_ENTRY_ATTRIBUTE_INTERPOSE] = "interpose", \ } #define FOR_EACH_FIB_ATTRIBUTE(_item) \ @@ -258,6 +273,7 @@ typedef enum fib_entry_flag_t_ { FIB_ENTRY_FLAG_LOOSE_URPF_EXEMPT = (1 << FIB_ENTRY_ATTRIBUTE_URPF_EXEMPT), FIB_ENTRY_FLAG_MULTICAST = (1 << FIB_ENTRY_ATTRIBUTE_MULTICAST), FIB_ENTRY_FLAG_COVERED_INHERIT = (1 << FIB_ENTRY_ATTRIBUTE_COVERED_INHERIT), + FIB_ENTRY_FLAG_INTERPOSE = (1 << FIB_ENTRY_ATTRIBUTE_INTERPOSE), } __attribute__((packed)) fib_entry_flag_t; /** @@ -273,6 +289,10 @@ typedef enum fib_entry_src_attribute_t_ { */ FIB_ENTRY_SRC_ATTRIBUTE_ADDED = FIB_ENTRY_SRC_ATTRIBUTE_FIRST, /** + * the source is contributing forwarding + */ + FIB_ENTRY_SRC_ATTRIBUTE_CONTRIBUTING, + /** * the source is active/best */ FIB_ENTRY_SRC_ATTRIBUTE_ACTIVE, @@ -286,22 +306,23 @@ typedef enum fib_entry_src_attribute_t_ { FIB_ENTRY_SRC_ATTRIBUTE_LAST = FIB_ENTRY_SRC_ATTRIBUTE_INHERITED, } fib_entry_src_attribute_t; -#define FIB_ENTRY_SRC_ATTRIBUTE_MAX (FIB_ENTRY_SRC_ATTRIBUTE_LAST+1) #define FIB_ENTRY_SRC_ATTRIBUTES { \ [FIB_ENTRY_SRC_ATTRIBUTE_ADDED] = "added", \ + [FIB_ENTRY_SRC_ATTRIBUTE_CONTRIBUTING] = "contributing", \ [FIB_ENTRY_SRC_ATTRIBUTE_ACTIVE] = "active", \ [FIB_ENTRY_SRC_ATTRIBUTE_INHERITED] = "inherited", \ } #define FOR_EACH_FIB_SRC_ATTRIBUTE(_item) \ for (_item = FIB_ENTRY_SRC_ATTRIBUTE_FIRST; \ - _item < FIB_ENTRY_SRC_ATTRIBUTE_MAX; \ + _item <= FIB_ENTRY_SRC_ATTRIBUTE_LAST; \ _item++) typedef enum fib_entry_src_flag_t_ { FIB_ENTRY_SRC_FLAG_NONE = 0, FIB_ENTRY_SRC_FLAG_ADDED = (1 << FIB_ENTRY_SRC_ATTRIBUTE_ADDED), + FIB_ENTRY_SRC_FLAG_CONTRIBUTING = (1 << FIB_ENTRY_SRC_ATTRIBUTE_CONTRIBUTING), FIB_ENTRY_SRC_FLAG_ACTIVE = (1 << FIB_ENTRY_SRC_ATTRIBUTE_ACTIVE), FIB_ENTRY_SRC_FLAG_INHERITED = (1 << FIB_ENTRY_SRC_ATTRIBUTE_INHERITED), } __attribute__ ((packed)) fib_entry_src_flag_t; @@ -326,10 +347,17 @@ typedef struct fib_entry_src_t_ { * The path-list created by the source */ fib_node_index_t fes_pl; + + /** + * Flags the source contributes to the entry + */ + fib_entry_flag_t fes_entry_flags; + /** * Which source this info block is for */ fib_source_t fes_src; + /** * Flags on the source */ @@ -341,11 +369,6 @@ typedef struct fib_entry_src_t_ { * of times a given source has been added. Which is even fewer */ u8 fes_ref_count; - - /** - * Flags the source contributes to the entry - */ - fib_entry_flag_t fes_entry_flags; /** * Source specific info @@ -365,6 +388,21 @@ typedef struct fib_entry_src_t_ { /** * the index of the FIB entry that is the covering entry */ + fib_node_index_t fesi_cover; + /** + * This source's index in the cover's list + */ + u32 fesi_sibling; + /** + * DPO type to interpose. The dpo type needs to have registered + * it's 'contribute interpose' callback function. + */ + dpo_id_t fesi_dpo; + } interpose; + struct { + /** + * the index of the FIB entry that is the covering entry + */ fib_node_index_t fesa_cover; /** * This source's index in the cover's list @@ -398,7 +436,7 @@ typedef struct fib_entry_src_t_ { */ fib_node_index_t fesl_fib_index; } lisp; - }; + } u; } fib_entry_src_t; /** @@ -509,6 +547,8 @@ extern void fib_entry_inherit(fib_node_index_t cover, extern fib_entry_src_flag_t fib_entry_delete(fib_node_index_t fib_entry_index, fib_source_t source); +extern void fib_entry_recalculate_forwarding( + fib_node_index_t fib_entry_index); extern void fib_entry_contribute_urpf(fib_node_index_t path_index, index_t urpf); extern void fib_entry_contribute_forwarding( |