diff options
Diffstat (limited to 'vnet/vnet/ip/lookup.h')
| -rw-r--r-- | vnet/vnet/ip/lookup.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/vnet/vnet/ip/lookup.h b/vnet/vnet/ip/lookup.h index 78a2641dc36..a66b9ed1f3e 100644 --- a/vnet/vnet/ip/lookup.h +++ b/vnet/vnet/ip/lookup.h @@ -350,6 +350,18 @@ typedef struct { u32 * config_index_by_sw_if_index; } ip_config_main_t; +//Function type used to register formatting of a custom adjacency formatting +typedef u8 *(* ip_adjacency_format_fn)(u8 * s, + struct ip_lookup_main_t * lm, + ip_adjacency_t *adj); + +typedef struct ip_adj_register_struct { + struct ip_adj_register_struct *next; + char *node_name; //Name of the node for this registered adjacency + ip_adjacency_format_fn fn; //Formatting function of this adjacency + u32 *next_index; //some place where the next index to be used will be put at init +} ip_adj_register_t; + typedef struct ip_lookup_main_t { /* Adjacency heap. */ ip_adjacency_t * adjacency_heap; @@ -422,6 +434,9 @@ typedef struct ip_lookup_main_t { /* IP_BUILTIN_PROTOCOL_{TCP,UDP,ICMP,OTHER} by protocol in IP header. */ u8 builtin_protocol_by_ip_protocol[256]; + + /* Registered adjacencies */ + ip_adj_register_t *registered_adjacencies; } ip_lookup_main_t; always_inline ip_adjacency_t * @@ -443,6 +458,37 @@ do { \ CLIB_PREFETCH (_adj, sizeof (_adj[0]), type); \ } while (0) +/* Adds a next node to ip4 or ip6 lookup node which can be then used in adjacencies. + * @param vlib_main pointer + * @param lm ip4_main.lookup_main or ip6_main.lookup_main + * @param reg registration structure + * @param next_node_index Returned index to be used in adjacencies. + * @return 0 on success. -1 on failure. + */ +int ip_register_adjacency(vlib_main_t *vm, u8 is_ip4, + ip_adj_register_t *reg); + +/* + * Construction helpers to add IP adjacency at init. + */ +#define VNET_IP_REGISTER_ADJACENCY(ip,x,...) \ + __VA_ARGS__ ip_adj_register_t ip##adj_##x; \ +static void __vnet_##ip##_register_adjacency_##x (void) \ + __attribute__((__constructor__)) ; \ +static void __vnet_##ip##_register_adjacency_##x (void) \ +{ \ + ip_lookup_main_t *lm = &ip##_main.lookup_main; \ + ip##adj_##x.next = lm->registered_adjacencies; \ + lm->registered_adjacencies = &ip##adj_##x; \ +} \ +__VA_ARGS__ ip_adj_register_t ip##adj_##x + +#define VNET_IP4_REGISTER_ADJACENCY(x,...) \ + VNET_IP_REGISTER_ADJACENCY(ip4, x, __VA_ARGS__) + +#define VNET_IP6_REGISTER_ADJACENCY(x,...) \ + VNET_IP_REGISTER_ADJACENCY(ip6, x, __VA_ARGS__) + static inline void ip_register_add_del_adjacency_callback(ip_lookup_main_t * lm, ip_add_del_adjacency_callback_t cb) |