X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fip%2Fip4.h;h=32552eafbff3621388348a555a9d790c56fe4263;hb=f2984bbb0;hp=af0e6b9a8a51794b8b5715fe62e417d7211ed517;hpb=1bfd37295f5cd332b7326923f1fbd5e0415829cd;p=vpp.git diff --git a/src/vnet/ip/ip4.h b/src/vnet/ip/ip4.h index af0e6b9a8a5..32552eafbff 100644 --- a/src/vnet/ip/ip4.h +++ b/src/vnet/ip/ip4.h @@ -41,7 +41,10 @@ #define included_ip_ip4_h #include +#include + #include +#include #include #include #include @@ -73,6 +76,15 @@ typedef struct uword function_opaque; } ip4_add_del_interface_address_callback_t; +typedef void (ip4_enable_disable_interface_function_t) + (struct ip4_main_t * im, uword opaque, u32 sw_if_index, u32 is_enable); + +typedef struct +{ + ip4_enable_disable_interface_function_t *function; + uword function_opaque; +} ip4_enable_disable_interface_callback_t; + typedef void (ip4_table_bind_function_t) (struct ip4_main_t * im, uword opaque, u32 sw_if_index, u32 new_fib_index, u32 old_fib_index); @@ -128,6 +140,10 @@ typedef struct ip4_main_t ip4_add_del_interface_address_callback_t * add_del_interface_address_callbacks; + /** Functions to call when interface becomes IPv4 enabled/disable. */ + ip4_enable_disable_interface_callback_t + * enable_disable_interface_callbacks; + /** Functions to call when interface to table biding changes. */ ip4_table_bind_callback_t *table_bind_callbacks; @@ -150,8 +166,11 @@ typedef struct ip4_main_t } host_config; } ip4_main_t; +#define ARP_THROTTLE_BITS (512) + /** Global ip4 main structure. */ extern ip4_main_t ip4_main; +extern char *ip4_error_strings[]; /** Global ip4 input node. Errors get attached to ip4 input node. */ extern vlib_node_registration_t ip4_input_node; @@ -163,6 +182,7 @@ extern vlib_node_registration_t ip4_rewrite_local_node; extern vlib_node_registration_t ip4_arp_node; extern vlib_node_registration_t ip4_glean_node; extern vlib_node_registration_t ip4_midchain_node; +extern vlib_node_registration_t ip4_punt_node; always_inline uword ip4_destination_matches_route (const ip4_main_t * im, @@ -181,42 +201,10 @@ ip4_destination_matches_interface (ip4_main_t * im, return ip4_destination_matches_route (im, key, a, ia->address_length); } -/* As above but allows for unaligned destinations (e.g. works right from IP header of packet). */ -always_inline uword -ip4_unaligned_destination_matches_route (ip4_main_t * im, - ip4_address_t * key, - ip4_address_t * dest, - uword dest_length) -{ - 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 (ip_lookup_main_t * lm, - u32 sw_if_index, ip4_address_t * src) -{ - 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 - { - src->as_u32 = 0; - } - return (!0); -} - /* Find interface address which matches destination. */ always_inline ip4_address_t * ip4_interface_address_matching_destination (ip4_main_t * im, - ip4_address_t * dst, + const ip4_address_t * dst, u32 sw_if_index, ip_interface_address_t ** result_ia) @@ -251,70 +239,36 @@ clib_error_t *ip4_add_del_interface_address (vlib_main_t * vm, ip4_address_t * address, u32 address_length, u32 is_del); +void ip4_directed_broadcast (u32 sw_if_index, u8 enable); + void ip4_sw_interface_enable_disable (u32 sw_if_index, u32 is_enable); 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 *ip4_probe_neighbor (vlib_main_t * vm, ip4_address_t * dst, - u32 sw_if_index); - -clib_error_t *ip4_set_arp_limit (u32 arp_limit); - uword ip4_udp_register_listener (vlib_main_t * vm, u16 dst_port, u32 next_node_index); -void -ip4_icmp_register_type (vlib_main_t * vm, icmp4_type_t type, u32 node_index); - u16 ip4_tcp_udp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0, ip4_header_t * ip0); void ip4_register_protocol (u32 protocol, u32 node_index); +void ip4_unregister_protocol (u32 protocolx); serialize_function_t serialize_vnet_ip4_main, unserialize_vnet_ip4_main; -int vnet_set_ip4_flow_hash (u32 table_id, - flow_hash_config_t flow_hash_config); - int vnet_set_ip4_classify_intfc (vlib_main_t * vm, u32 sw_if_index, u32 table_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 (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; - uword is_tcp_udp = (ip->protocol == IP_PROTOCOL_TCP - || ip->protocol == IP_PROTOCOL_UDP); - - t1 = (flow_hash_config & IP_FLOW_HASH_SRC_ADDR) - ? ip->src_address.data_u32 : 0; - t2 = (flow_hash_config & IP_FLOW_HASH_DST_ADDR) - ? ip->dst_address.data_u32 : 0; - - a = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? t2 : t1; - b = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? t1 : t2; - b ^= (flow_hash_config & IP_FLOW_HASH_PROTO) ? ip->protocol : 0; - - t1 = is_tcp_udp ? tcp->src : 0; - t2 = is_tcp_udp ? tcp->dst : 0; - - t1 = (flow_hash_config & IP_FLOW_HASH_SRC_PORT) ? t1 : 0; - t2 = (flow_hash_config & IP_FLOW_HASH_DST_PORT) ? t2 : 0; +void ip4_punt_policer_add_del (u8 is_add, u32 policer_index); - c = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? - (t1 << 16) | t2 : (t2 << 16) | t1; +void ip4_punt_redirect_add (u32 rx_sw_if_index, + u32 tx_sw_if_index, ip46_address_t * nh); +void ip4_punt_redirect_add_paths (u32 rx_sw_if_index, + fib_route_path_t * paths); - hash_v3_mix32 (a, b, c); - hash_v3_finalize32 (a, b, c); +void ip4_punt_redirect_del (u32 rx_sw_if_index); - return c; -} void ip4_forward_next_trace (vlib_main_t * vm, @@ -326,56 +280,16 @@ u8 *format_ip4_forward_next_trace (u8 * s, va_list * args); u32 ip4_tcp_udp_validate_checksum (vlib_main_t * vm, vlib_buffer_t * p0); -#define IP_DF 0x4000 /* don't fragment */ - -/** - * Push IPv4 header to buffer - * - * This does not support fragmentation. - * - * @param vm - vlib_main - * @param b - buffer to write the header to - * @param src - source IP - * @param dst - destination IP - * @param prot - payload proto - * - * @return - pointer to start of IP header - */ -always_inline void * -vlib_buffer_push_ip4 (vlib_main_t * vm, vlib_buffer_t * b, - ip4_address_t * src, ip4_address_t * dst, int proto, - u8 csum_offload) +always_inline u32 +vlib_buffer_get_ip4_fib_index (vlib_buffer_t * b) { - ip4_header_t *ih; - - /* make some room */ - ih = vlib_buffer_push_uninit (b, sizeof (ip4_header_t)); - - ih->ip_version_and_header_length = 0x45; - ih->tos = 0; - ih->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b)); - - /* No fragments */ - ih->flags_and_fragment_offset = clib_host_to_net_u16 (IP_DF); - ih->ttl = 255; - ih->protocol = proto; - ih->src_address.as_u32 = src->as_u32; - ih->dst_address.as_u32 = dst->as_u32; - - /* Offload ip4 header checksum generation */ - if (csum_offload) - { - ih->checksum = 0; - b->flags |= VNET_BUFFER_F_OFFLOAD_IP_CKSUM | VNET_BUFFER_F_IS_IP4; - vnet_buffer (b)->l3_hdr_offset = (u8 *) ih - b->data; - vnet_buffer (b)->l4_hdr_offset = vnet_buffer (b)->l3_hdr_offset + - sizeof (*ih); - } - else - ih->checksum = ip4_header_checksum (ih); - - return ih; + u32 fib_index, sw_if_index; + sw_if_index = vnet_buffer (b)->sw_if_index[VLIB_RX]; + fib_index = vnet_buffer (b)->sw_if_index[VLIB_TX]; + return (fib_index == (u32) ~ 0) ? + vec_elt (ip4_main.fib_index_by_sw_if_index, sw_if_index) : fib_index; } + #endif /* included_ip_ip4_h */ /*