diff options
Diffstat (limited to 'vnet/vnet/ip/lookup.h')
-rw-r--r-- | vnet/vnet/ip/lookup.h | 180 |
1 files changed, 101 insertions, 79 deletions
diff --git a/vnet/vnet/ip/lookup.h b/vnet/vnet/ip/lookup.h index 4b6aaa10..3dbd7b3b 100644 --- a/vnet/vnet/ip/lookup.h +++ b/vnet/vnet/ip/lookup.h @@ -57,7 +57,8 @@ #include <vnet/feature/feature.h> /** @brief Common (IP4/IP6) next index stored in adjacency. */ -typedef enum { +typedef enum +{ /** Adjacency to drop this packet. */ IP_LOOKUP_NEXT_DROP, /** Adjacency to punt this packet. */ @@ -93,11 +94,13 @@ typedef enum { IP_LOOKUP_N_NEXT, } ip_lookup_next_t; -typedef enum { +typedef enum +{ IP4_LOOKUP_N_NEXT = IP_LOOKUP_N_NEXT, } ip4_lookup_next_t; -typedef enum { +typedef enum +{ /* Hop-by-hop header handling */ IP6_LOOKUP_NEXT_HOP_BY_HOP = IP_LOOKUP_N_NEXT, IP6_LOOKUP_NEXT_ADD_HOP_BY_HOP, @@ -164,9 +167,9 @@ struct ip_adjacency_t_; /** * @brief A function type for post-rewrite fixups on midchain adjacency */ -typedef void (*adj_midchain_fixup_t)(vlib_main_t * vm, - struct ip_adjacency_t_ *adj, - vlib_buffer_t * b0); +typedef void (*adj_midchain_fixup_t) (vlib_main_t * vm, + struct ip_adjacency_t_ * adj, + vlib_buffer_t * b0); /** * @brief Flags on an IP adjacency @@ -176,22 +179,24 @@ typedef enum ip_adjacency_flags_t_ /** * Currently a sync walk is active. Used to prevent re-entrant walking */ - IP_ADJ_SYNC_WALK_ACTIVE = (1 << 0), + IP_ADJ_SYNC_WALK_ACTIVE = (1 << 0), } ip_adjacency_flags_t; /** @brief IP unicast adjacency. @note cache aligned. */ -typedef struct ip_adjacency_t_ { - CLIB_CACHE_LINE_ALIGN_MARK(cacheline0); +typedef struct ip_adjacency_t_ +{ + CLIB_CACHE_LINE_ALIGN_MARK (cacheline0); /** Number of adjecencies in block. Greater than 1 means multipath; otherwise equal to 1. */ u16 n_adj; /** Next hop after ip4-lookup. */ - union { - ip_lookup_next_t lookup_next_index : 16; + union + { + ip_lookup_next_t lookup_next_index:16; u16 lookup_next_index_as_int; }; @@ -199,7 +204,7 @@ typedef struct ip_adjacency_t_ { u32 if_address_index; /** Force re-lookup in a different FIB. ~0 => normal behavior */ - u16 mcast_group_index; + u16 mcast_group_index; /** Highest possible perf subgraph arc interposition, e.g. for ip6 ioam */ u16 saved_lookup_next_index; @@ -210,15 +215,17 @@ typedef struct ip_adjacency_t_ { vnet_link_t ia_link; u8 ia_nh_proto; - union { + union + { /** * IP_LOOKUP_NEXT_ARP/IP_LOOKUP_NEXT_REWRITE * * neighbour adjacency sub-type; */ - struct { - ip46_address_t next_hop; - } nbr; + struct + { + ip46_address_t next_hop; + } nbr; /** * IP_LOOKUP_NEXT_MIDCHAIN * @@ -227,38 +234,40 @@ typedef struct ip_adjacency_t_ { * so be sure to leave the two structs with the next_hop * fields aligned. */ - struct { + struct + { /** * The recursive next-hop */ - ip46_address_t next_hop; + ip46_address_t next_hop; /** * The node index of the tunnel's post rewrite/TX function. */ - u32 tx_function_node; + u32 tx_function_node; /** * The next DPO to use */ - dpo_id_t next_dpo; + dpo_id_t next_dpo; /** * A function to perform the post-rewrite fixup */ - adj_midchain_fixup_t fixup_func; - } midchain; + adj_midchain_fixup_t fixup_func; + } midchain; /** * IP_LOOKUP_NEXT_GLEAN * * Glean the address to ARP for from the packet's destination */ - struct { - ip46_address_t receive_addr; - } glean; + struct + { + ip46_address_t receive_addr; + } glean; } sub_type; - CLIB_CACHE_LINE_ALIGN_MARK(cacheline1); + CLIB_CACHE_LINE_ALIGN_MARK (cacheline1); /* Rewrite in second/third cache lines */ - vnet_declare_rewrite (VLIB_BUFFER_PRE_DATA_SIZE); + vnet_declare_rewrite (VLIB_BUFFER_PRE_DATA_SIZE); /* * member not accessed in the data plane are relgated to the @@ -273,17 +282,18 @@ typedef struct ip_adjacency_t_ { } ip_adjacency_t; -STATIC_ASSERT((STRUCT_OFFSET_OF(ip_adjacency_t, cacheline0) == 0), - "IP adjacency cachline 0 is not offset"); -STATIC_ASSERT((STRUCT_OFFSET_OF(ip_adjacency_t, cacheline1) == - CLIB_CACHE_LINE_BYTES), - "IP adjacency cachline 1 is more than one cachline size offset"); +STATIC_ASSERT ((STRUCT_OFFSET_OF (ip_adjacency_t, cacheline0) == 0), + "IP adjacency cachline 0 is not offset"); +STATIC_ASSERT ((STRUCT_OFFSET_OF (ip_adjacency_t, cacheline1) == + CLIB_CACHE_LINE_BYTES), + "IP adjacency cachline 1 is more than one cachline size offset"); /* An all zeros address */ extern const ip46_address_t zero_addr; /* IP multicast adjacency. */ -typedef struct { +typedef struct +{ /* Handle for this adjacency in adjacency heap. */ u32 heap_handle; @@ -291,31 +301,36 @@ typedef struct { u32 n_adj; /* Rewrite string. */ - vnet_declare_rewrite (64 - 2*sizeof(u32)); -} ip_multicast_rewrite_t; + vnet_declare_rewrite (64 - 2 * sizeof (u32)); +} +ip_multicast_rewrite_t; -typedef struct { +typedef struct +{ /* ip4-multicast-rewrite next index. */ u32 next_index; u8 n_rewrite_bytes; - u8 rewrite_string[64 - 1*sizeof(u32) - 1*sizeof(u8)]; -} ip_multicast_rewrite_string_t; + u8 rewrite_string[64 - 1 * sizeof (u32) - 1 * sizeof (u8)]; +} +ip_multicast_rewrite_string_t; -typedef struct { - ip_multicast_rewrite_t * rewrite_heap; +typedef struct +{ + ip_multicast_rewrite_t *rewrite_heap; - ip_multicast_rewrite_string_t * rewrite_strings; + ip_multicast_rewrite_string_t *rewrite_strings; /* Negative rewrite string index; >= 0 sw_if_index. Sorted. Used to hash. */ - i32 ** adjacency_id_vector; + i32 **adjacency_id_vector; - uword * adjacency_by_id_vector; + uword *adjacency_by_id_vector; } ip_multicast_lookup_main_t; -typedef struct { +typedef struct +{ /* Key for mhash; in fact, just a byte offset into mhash key vector. */ u32 address_key; @@ -337,7 +352,8 @@ typedef struct { u32 prev_this_sw_interface; } ip_interface_address_t; -typedef enum { +typedef enum +{ IP_LOCAL_NEXT_DROP, IP_LOCAL_NEXT_PUNT, IP_LOCAL_NEXT_UDP_LOOKUP, @@ -347,25 +363,26 @@ typedef enum { struct ip_lookup_main_t; -typedef struct ip_lookup_main_t { +typedef struct ip_lookup_main_t +{ /* Adjacency heap. */ - ip_adjacency_t * adjacency_heap; + ip_adjacency_t *adjacency_heap; /** load-balance packet/byte counters indexed by LB index. */ vlib_combined_counter_main_t load_balance_counters; /** Pool of addresses that are assigned to interfaces. */ - ip_interface_address_t * if_address_pool; + ip_interface_address_t *if_address_pool; /** Hash table mapping address to index in interface address pool. */ mhash_t address_to_if_address_index; /** Head of doubly linked list of interface addresses for each software interface. ~0 means this interface has no address. */ - u32 * if_address_pool_index_by_sw_if_index; + u32 *if_address_pool_index_by_sw_if_index; /** First table index to use for this interface, ~0 => none */ - u32 * classify_table_index_by_sw_if_index; + u32 *classify_table_index_by_sw_if_index; /** Feature arc indices */ u8 mcast_feature_arc_index; @@ -376,16 +393,16 @@ typedef struct ip_lookup_main_t { sizeof (uword). First word is always adjacency index. */ u32 fib_result_n_bytes, fib_result_n_words; - format_function_t * format_fib_result; + format_function_t *format_fib_result; /** 1 for ip6; 0 for ip4. */ u32 is_ip6; /** Either format_ip4_address_and_length or format_ip6_address_and_length. */ - format_function_t * format_address_and_length; + format_function_t *format_address_and_length; /** Special adjacency format functions */ - format_function_t ** 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]; @@ -395,10 +412,9 @@ typedef struct ip_lookup_main_t { } ip_lookup_main_t; always_inline ip_adjacency_t * -ip_get_adjacency (ip_lookup_main_t * lm, - u32 adj_index) +ip_get_adjacency (ip_lookup_main_t * lm, u32 adj_index) { - ip_adjacency_t * adj; + ip_adjacency_t *adj; adj = vec_elt_at_index (lm->adjacency_heap, adj_index); @@ -412,38 +428,35 @@ do { \ } while (0) /* Create new block of given number of contiguous adjacencies. */ -ip_adjacency_t * -ip_add_adjacency (ip_lookup_main_t * lm, - ip_adjacency_t * adj, - u32 n_adj, - u32 * adj_index_result); - -clib_error_t * -ip_interface_address_add_del (ip_lookup_main_t * lm, - u32 sw_if_index, - void * address, - u32 address_length, - u32 is_del, - u32 * result_index); - -u8 * -format_ip_flow_hash_config (u8 * s, va_list * args); +ip_adjacency_t *ip_add_adjacency (ip_lookup_main_t * lm, + ip_adjacency_t * adj, + u32 n_adj, u32 * adj_index_result); + +clib_error_t *ip_interface_address_add_del (ip_lookup_main_t * lm, + u32 sw_if_index, + void *address, + u32 address_length, + u32 is_del, u32 * result_index); + +u8 *format_ip_flow_hash_config (u8 * s, va_list * args); always_inline ip_interface_address_t * -ip_get_interface_address (ip_lookup_main_t * lm, void * addr_fib) +ip_get_interface_address (ip_lookup_main_t * lm, void *addr_fib) { - uword * p = mhash_get (&lm->address_to_if_address_index, addr_fib); + uword *p = mhash_get (&lm->address_to_if_address_index, addr_fib); return p ? pool_elt_at_index (lm->if_address_pool, p[0]) : 0; } -u32 -fib_table_id_find_fib_index (fib_protocol_t proto, - u32 table_id); +u32 fib_table_id_find_fib_index (fib_protocol_t proto, u32 table_id); always_inline void * -ip_interface_address_get_address (ip_lookup_main_t * lm, ip_interface_address_t * a) -{ return mhash_key_to_mem (&lm->address_to_if_address_index, a->address_key); } +ip_interface_address_get_address (ip_lookup_main_t * lm, + ip_interface_address_t * a) +{ + return mhash_key_to_mem (&lm->address_to_if_address_index, a->address_key); +} +/* *INDENT-OFF* */ #define foreach_ip_interface_address(lm,a,sw_if_index,loop,body) \ do { \ vnet_main_t *_vnm = vnet_get_main(); \ @@ -470,7 +483,16 @@ do { \ body; \ } \ } while (0) +/* *INDENT-ON* */ void ip_lookup_init (ip_lookup_main_t * lm, u32 ip_lookup_node_index); #endif /* included_ip_lookup_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |