diff options
Diffstat (limited to 'vnet/vnet/ip/ip4.h')
| -rw-r--r-- | vnet/vnet/ip/ip4.h | 217 |
1 files changed, 44 insertions, 173 deletions
diff --git a/vnet/vnet/ip/ip4.h b/vnet/vnet/ip/ip4.h index fc74e9d6..f9fe4868 100644 --- a/vnet/vnet/ip/ip4.h +++ b/vnet/vnet/ip/ip4.h @@ -47,10 +47,7 @@ typedef struct ip4_fib_t { /* Hash table for each prefix length mapping. */ - uword * adj_index_by_dst_address[33]; - - /* Temporary vectors for holding new/old values for hash_set. */ - uword * new_hash_values, * old_hash_values; + uword * fib_entry_by_dst_address[33]; /* Mtrie for fast lookups. Hash is used to maintain overlapping prefixes. */ ip4_fib_mtrie_t mtrie; @@ -62,7 +59,7 @@ typedef struct ip4_fib_t { u32 index; /* flow hash configuration */ - u32 flow_hash_config; + flow_hash_config_t flow_hash_config; /* N-tuple classifier indices */ u32 fwd_classify_table_index; @@ -72,22 +69,6 @@ typedef struct ip4_fib_t { struct ip4_main_t; -typedef void (ip4_add_del_route_function_t) - (struct ip4_main_t * im, - uword opaque, - ip4_fib_t * fib, - u32 flags, - ip4_address_t * address, - u32 address_length, - void * old_result, - void * new_result); - -typedef struct { - ip4_add_del_route_function_t * function; - uword required_flags; - uword function_opaque; -} ip4_add_del_route_callback_t; - typedef void (ip4_add_del_interface_address_function_t) (struct ip4_main_t * im, uword opaque, @@ -115,23 +96,20 @@ typedef struct ip4_main_t { ip_lookup_main_t lookup_main; /** Vector of FIBs. */ - ip4_fib_t * fibs; + struct fib_table_t_ * fibs; u32 fib_masks[33]; /** Table index indexed by software interface. */ u32 * fib_index_by_sw_if_index; + /* IP4 enabled count by software interface */ + u8 * ip_enabled_by_sw_if_index; + /** Hash table mapping table id to fib index. ID space is not necessarily dense; index space is dense. */ uword * fib_index_by_table_id; - /** Vector of functions to call when routes are added/deleted. */ - ip4_add_del_route_callback_t * add_del_route_callbacks; - - /** Hash table mapping interface route rewrite adjacency index by sw if index. */ - uword * interface_route_adj_index_by_sw_if_index; - /** Functions to call when interface address changes. */ ip4_add_del_interface_address_callback_t * add_del_interface_address_callbacks; @@ -159,11 +137,15 @@ typedef struct ip4_main_t { u32 ip4_unicast_rx_feature_lookup; /** Built-in unicast feature path index, see @ref ip_feature_init_cast() */ u32 ip4_unicast_rx_feature_source_and_port_range_check; + /** Built-in unicast feature path indice, see @ref ip_feature_init_cast() */ + u32 ip4_unicast_rx_feature_drop; /** Built-in multicast feature path index */ u32 ip4_multicast_rx_feature_vpath; /** Built-in multicast feature path index */ u32 ip4_multicast_rx_feature_lookup; + /** Built-in multicast feature path indices */ + u32 ip4_multicast_rx_feature_drop; /** Built-in unicast feature path index, see @ref ip_feature_init_cast() */ u32 ip4_unicast_tx_feature_source_and_port_range_check; @@ -235,30 +217,13 @@ extern vlib_node_registration_t ip4_lookup_node; extern vlib_node_registration_t ip4_rewrite_node; extern vlib_node_registration_t ip4_rewrite_local_node; extern vlib_node_registration_t ip4_arp_node; - -u32 ip4_fib_lookup_with_table (ip4_main_t * im, u32 fib_index, ip4_address_t * dst, - u32 disable_default_route); - -always_inline u32 -ip4_fib_lookup_buffer (ip4_main_t * im, u32 fib_index, ip4_address_t * dst, - vlib_buffer_t * b) -{ - return ip4_fib_lookup_with_table (im, fib_index, dst, - /* disable_default_route */ 0); -} - -always_inline u32 -ip4_fib_lookup (ip4_main_t * im, u32 sw_if_index, ip4_address_t * dst) -{ - u32 fib_index = vec_elt (im->fib_index_by_sw_if_index, sw_if_index); - return ip4_fib_lookup_with_table (im, fib_index, dst, - /* disable_default_route */ 0); -} +extern vlib_node_registration_t ip4_glean_node; +extern vlib_node_registration_t ip4_midchain_node; always_inline uword -ip4_destination_matches_route (ip4_main_t * im, - ip4_address_t * key, - ip4_address_t * dest, +ip4_destination_matches_route (const ip4_main_t * im, + const ip4_address_t * key, + const ip4_address_t * dest, uword dest_length) { return 0 == ((key->data_u32 ^ dest->data_u32) & im->fib_masks[dest_length]); } @@ -280,15 +245,26 @@ ip4_unaligned_destination_matches_route (ip4_main_t * im, { return 0 == ((clib_mem_unaligned (&key->data_u32, u32) ^ dest->data_u32) & im->fib_masks[dest_length]); } always_inline int -ip4_src_address_for_packet (ip4_main_t * im, vlib_buffer_t * p, ip4_address_t * src, u32 sw_if_index) +ip4_src_address_for_packet (ip_lookup_main_t * lm, + u32 sw_if_index, + ip4_address_t * src) { - ip_lookup_main_t * lm = &im->lookup_main; - ip_interface_address_t * ia = ip_interface_address_for_packet (lm, p, sw_if_index); - if (ia == NULL) - return -1; - ip4_address_t * a = ip_interface_address_get_address (lm, ia); - *src = a[0]; - return 0; + u32 if_add_index = + lm->if_address_pool_index_by_sw_if_index[sw_if_index]; + if (PREDICT_TRUE(if_add_index != ~0)) { + ip_interface_address_t *if_add = + pool_elt_at_index(lm->if_address_pool, if_add_index); + ip4_address_t *if_ip = + ip_interface_address_get_address(lm, if_add); + *src = *if_ip; + return 0; + } + else + { + ASSERT(0); + src->as_u32 = 0; + } + return (!0); } /* Find interface address which matches destination. */ @@ -315,126 +291,20 @@ ip4_interface_address_matching_destination (ip4_main_t * im, ip4_address_t * dst return result; } +ip4_address_t * +ip4_interface_first_address (ip4_main_t * im, u32 sw_if_index, + ip_interface_address_t ** result_ia); + clib_error_t * ip4_add_del_interface_address (vlib_main_t * vm, u32 sw_if_index, ip4_address_t * address, u32 address_length, u32 is_del); -int ip4_address_compare (ip4_address_t * a1, ip4_address_t * a2); - -/* Add/del a route to the FIB. */ - -#define IP4_ROUTE_FLAG_ADD (0 << 0) -#define IP4_ROUTE_FLAG_DEL (1 << 0) -#define IP4_ROUTE_FLAG_TABLE_ID (0 << 1) -#define IP4_ROUTE_FLAG_FIB_INDEX (1 << 1) -#define IP4_ROUTE_FLAG_KEEP_OLD_ADJACENCY (1 << 2) -#define IP4_ROUTE_FLAG_NO_REDISTRIBUTE (1 << 3) -/* Not last add/del in group. Facilities batching requests into packets. */ -#define IP4_ROUTE_FLAG_NOT_LAST_IN_GROUP (1 << 4) -/* Dynamic route created via ARP reply. */ -#define IP4_ROUTE_FLAG_NEIGHBOR (1 << 5) - -typedef struct { - /* IP4_ROUTE_FLAG_* */ - u32 flags; - - /* Either index of fib or table_id to hash and get fib. - IP4_ROUTE_FLAG_FIB_INDEX specifies index; otherwise table_id is assumed. */ - u32 table_index_or_table_id; - - /* Destination address (prefix) and length. */ - ip4_address_t dst_address; - u32 dst_address_length; - - /* Adjacency to use for this destination. */ - u32 adj_index; - - /* If specified adjacencies to add and then - use for this destination. add_adj/n_add_adj - are override adj_index if specified. */ - ip_adjacency_t * add_adj; - u32 n_add_adj; -} ip4_add_del_route_args_t; - -/** - * \brief Get or create an IPv4 fib. - * - * Get or create an IPv4 fib with the provided fib ID or index. - * The fib ID is a possibly-sparse user-defined value while - * the fib index defines the position of the fib in the fib vector. - * - * \param im - * ip4_main pointer. - * \param table_index_or_id - * The table index if \c IP4_ROUTE_FLAG_FIB_INDEX bit is set in \p flags. - * Otherwise, when set to \c ~0, an arbitrary and unused fib ID is picked - * and can be retrieved with \c ret->table_id. - * Otherwise, the fib ID to be used to retrieve or create the desired fib. - * \param flags - * Indicates whether \p table_index_or_id is the fib index or ID. - * When the bit \c IP4_ROUTE_FLAG_FIB_INDEX is set, \p table_index_or_id - * is considered as the fib index, and the fib ID otherwise. - * \returns A pointer to the retrieved or created fib. - * - * \remark When getting a fib with the fib index, the fib MUST already exist. - */ -ip4_fib_t * -find_ip4_fib_by_table_index_or_id (ip4_main_t * im, - u32 table_index_or_id, u32 flags); - -void ip4_add_del_route (ip4_main_t * im, ip4_add_del_route_args_t * args); - -void ip4_add_del_route_next_hop (ip4_main_t * im, - u32 flags, - ip4_address_t * dst_address, - u32 dst_address_length, - ip4_address_t * next_hop, - u32 next_hop_sw_if_index, - u32 next_hop_weight, u32 adj_index, - u32 explicit_fib_index); - -u32 -ip4_route_get_next_hop_adj (ip4_main_t * im, - u32 fib_index, - ip4_address_t *next_hop, - u32 next_hop_sw_if_index, - u32 explicit_fib_index); - -void * -ip4_get_route (ip4_main_t * im, - u32 fib_index_or_table_id, - u32 flags, - u8 * address, - u32 address_length); - void -ip4_foreach_matching_route (ip4_main_t * im, - u32 table_index_or_table_id, - u32 flags, - ip4_address_t * address, - u32 address_length, - ip4_address_t ** results, - u8 ** result_lengths); - -void ip4_delete_matching_routes (ip4_main_t * im, - u32 table_index_or_table_id, - u32 flags, - ip4_address_t * address, - u32 address_length); - -void ip4_maybe_remap_adjacencies (ip4_main_t * im, - u32 table_index_or_table_id, - u32 flags); - -void ip4_adjacency_set_interface_route (vnet_main_t * vnm, - ip_adjacency_t * adj, - u32 sw_if_index, - u32 if_address_index); +ip4_sw_interface_enable_disable (u32 sw_if_index, + u32 is_enable); -ip4_address_t * -ip4_interface_first_address (ip4_main_t * im, u32 sw_if_index, - ip_interface_address_t ** result_ia); +int ip4_address_compare (ip4_address_t * a1, ip4_address_t * a2); /* Send an ARP request to see if given destination is reachable on given interface. */ clib_error_t * @@ -458,7 +328,7 @@ void ip4_register_protocol (u32 protocol, u32 node_index); serialize_function_t serialize_vnet_ip4_main, unserialize_vnet_ip4_main; -int vnet_set_ip4_flow_hash (u32 table_id, u32 flow_hash_config); +int vnet_set_ip4_flow_hash (u32 table_id, flow_hash_config_t flow_hash_config); void ip4_mtrie_init (ip4_fib_mtrie_t * m); @@ -468,7 +338,8 @@ int vnet_set_ip4_classify_intfc (vlib_main_t * vm, u32 sw_if_index, /* Compute flow hash. We'll use it to select which adjacency to use for this flow. And other things. */ always_inline u32 -ip4_compute_flow_hash (ip4_header_t * ip, u32 flow_hash_config) +ip4_compute_flow_hash (const ip4_header_t * ip, + flow_hash_config_t flow_hash_config) { tcp_header_t * tcp = (void *) (ip + 1); u32 a, b, c, t1, t2; |