diff options
Diffstat (limited to 'vnet/vnet/ip/lookup.h')
| -rw-r--r-- | vnet/vnet/ip/lookup.h | 34 |
1 files changed, 24 insertions, 10 deletions
diff --git a/vnet/vnet/ip/lookup.h b/vnet/vnet/ip/lookup.h index a66b9ed1f3e..7a6e8565409 100644 --- a/vnet/vnet/ip/lookup.h +++ b/vnet/vnet/ip/lookup.h @@ -45,40 +45,42 @@ #include <vnet/ip/ip4_packet.h> #include <vnet/ip/ip6_packet.h> -/* Common (IP4/IP6) next index stored in adjacency. */ +/** @brief Common (IP4/IP6) next index stored in adjacency. */ typedef enum { - /* Packet does not match any route in table. */ + /** Packet does not match any route in table. */ IP_LOOKUP_NEXT_MISS, - /* Adjacency says to drop or punt this packet. */ + /** Adjacency to drop this packet. */ IP_LOOKUP_NEXT_DROP, + /** Adjacency to punt this packet. */ IP_LOOKUP_NEXT_PUNT, - /* This packet is for one of our own IP addresses. */ + /** This packet is for one of our own IP addresses. */ IP_LOOKUP_NEXT_LOCAL, - /* This packet matches an "interface route" and packets + /** This packet matches an "interface route" and packets need to be passed to ARP to find rewrite string for this destination. */ IP_LOOKUP_NEXT_ARP, - /* This packet is to be rewritten and forwarded to the next + /** This packet is to be rewritten and forwarded to the next processing node. This is typically the output interface but might be another node for further output processing. */ IP_LOOKUP_NEXT_REWRITE, - /* This packet needs to be classified */ + /** This packet needs to be classified */ IP_LOOKUP_NEXT_CLASSIFY, - /* This packet needs to go to MAP - RFC7596, RFC7597 */ + /** This packet needs to go to MAP - RFC7596, RFC7597 */ IP_LOOKUP_NEXT_MAP, - /* This packet needs to go to MAP with Translation - RFC7599 */ + /** This packet needs to go to MAP with Translation - RFC7599 */ IP_LOOKUP_NEXT_MAP_T, - /* This packets needs to go to indirect next hop */ + /** This packets needs to go to indirect next hop */ IP_LOOKUP_NEXT_INDIRECT, + /** This packets needs to go to ICMP error */ IP_LOOKUP_NEXT_ICMP_ERROR, IP_LOOKUP_N_NEXT, @@ -191,6 +193,13 @@ typedef struct { u8 opaque[IP_ADJACENCY_OPAQUE_SZ]; }; + /* + * Special format function for this adjacency. + * Specifically good for cases which use the entire rewrite + * for their own purposes. Can easily reduce to a u16 or a u8 if/when + * the first cache line reads "full" on the free space gas gauge. + */ + u32 special_adjacency_format_function_index; /* 0 is invalid */ STRUCT_MARK(signature_end); /* Number of FIB entries sharing this adjacency */ @@ -429,6 +438,9 @@ typedef struct ip_lookup_main_t { /* Either format_ip4_address_and_length or format_ip6_address_and_length. */ format_function_t * format_address_and_length; + /* Special adjacency format functions */ + format_function_t ** special_adjacency_format_functions; + /* Table mapping ip protocol to ip[46]-local node next index. */ u8 local_next_by_ip_protocol[256]; @@ -610,5 +622,7 @@ do { \ } while (0) void ip_lookup_init (ip_lookup_main_t * lm, u32 ip_lookup_node_index); +u32 vnet_register_special_adjacency_format_function +(ip_lookup_main_t * lm, format_function_t * fp); #endif /* included_ip_lookup_h */ |