/*
- * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Copyright (c) 2016 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
#include <vnet/ip/ip6_packet.h>
#include <vnet/ip/ip6_hop_by_hop_packet.h>
#include <vnet/ip/lookup.h>
-#include <vnet/ip/feature_registration.h>
#include <stdbool.h>
#include <vppinfra/bihash_24_8.h>
#include <vppinfra/bihash_template.h>
#define IP6_FIB_DEFAULT_HASH_NUM_BUCKETS (64 * 1024)
#define IP6_FIB_DEFAULT_HASH_MEMORY_SIZE (32<<20)
-typedef struct {
+typedef struct
+{
ip6_address_t addr;
u32 dst_address_length;
u32 vrf_index;
} ip6_fib_key_t;
-typedef struct {
+typedef struct
+{
/* Table ID (hash key) for this FIB. */
u32 table_id;
uword opaque,
u32 sw_if_index,
ip6_address_t * address,
- u32 address_length,
- u32 if_address_index,
- u32 is_del);
+ u32 address_length, u32 if_address_index, u32 is_del);
-typedef struct {
- ip6_add_del_interface_address_function_t * function;
+typedef struct
+{
+ ip6_add_del_interface_address_function_t *function;
uword function_opaque;
} ip6_add_del_interface_address_callback_t;
/**
* Enumeration of the FIB table instance types
*/
-typedef enum ip6_fib_table_instance_type_t_ {
+typedef enum ip6_fib_table_instance_type_t_
+{
/**
* This table stores the routes that are used to forward traffic.
* The key is the prefix, the result the adjacnecy to forward on.
*/
- IP6_FIB_TABLE_FWDING,
+ IP6_FIB_TABLE_FWDING,
/**
* The table that stores ALL routes learned by the DP.
* Some of these routes may not be ready to install in forwarding
* at a given time.
* The key in this table is the prefix, the result is the fib_entry_t
*/
- IP6_FIB_TABLE_NON_FWDING,
+ IP6_FIB_TABLE_NON_FWDING,
} ip6_fib_table_instance_type_t;
#define IP6_FIB_NUM_TABLES (IP6_FIB_TABLE_NON_FWDING+1)
/**
* A represenation of a single IP6 table
*/
-typedef struct ip6_fib_table_instance_t_ {
+typedef struct ip6_fib_table_instance_t_
+{
/* The hash table */
- BVT(clib_bihash) ip6_hash;
+ BVT (clib_bihash) ip6_hash;
/* bitmap / refcounts / vector of mask widths to search */
- uword * non_empty_dst_address_length_bitmap;
- u8 * prefix_lengths_in_search_order;
+ uword *non_empty_dst_address_length_bitmap;
+ u8 *prefix_lengths_in_search_order;
i32 dst_address_length_refcounts[129];
} ip6_fib_table_instance_t;
-typedef struct ip6_main_t {
+typedef struct ip6_main_t
+{
/**
* The two FIB tables; fwding and non-fwding
*/
ip_lookup_main_t lookup_main;
/* Pool of FIBs. */
- struct fib_table_t_ * fibs;
+ struct fib_table_t_ *fibs;
/* Network byte orders subnet mask for each prefix length */
ip6_address_t fib_masks[129];
/* Table index indexed by software interface. */
- u32 * fib_index_by_sw_if_index;
+ u32 *fib_index_by_sw_if_index;
/* IP6 enabled count by software interface */
- u8 * ip_enabled_by_sw_if_index;
+ 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;
+ uword *fib_index_by_table_id;
/* Hash table mapping interface rewrite adjacency index by sw if index. */
- uword * interface_route_adj_index_by_sw_if_index;
+ uword *interface_route_adj_index_by_sw_if_index;
/* Functions to call when interface address changes. */
- ip6_add_del_interface_address_callback_t * add_del_interface_address_callbacks;
+ ip6_add_del_interface_address_callback_t
+ * add_del_interface_address_callbacks;
/* Template used to generate IP6 neighbor solicitation packets. */
vlib_packet_template_t discover_neighbor_packet_template;
u32 lookup_table_nbuckets;
uword lookup_table_size;
- /* feature path configuration lists */
- vnet_feature_registration_t * next_feature[VNET_N_IP_FEAT];
-
- /* Built-in unicast feature path indices, see vnet_feature_arc_init(...) */
- u32 ip6_unicast_rx_feature_check_access;
- u32 ip6_unicast_rx_feature_policer_classify;
- u32 ip6_unicast_rx_feature_flow_classify;
- u32 ip6_unicast_rx_feature_ipsec;
- u32 ip6_unicast_rx_feature_l2tp_decap;
- u32 ip6_unicast_rx_feature_vpath;
- u32 ip6_unicast_rx_feature_lookup;
- u32 ip6_unicast_rx_feature_drop;
-
- /* Built-in multicast feature path indices */
- u32 ip6_multicast_rx_feature_drop;
- u32 ip6_multicast_rx_feature_vpath;
- u32 ip6_multicast_rx_feature_lookup;
-
- /* Built-in tx feature path index */
- u32 ip6_tx_feature_interface_output;
-
- /* Save results for show command */
- char ** feature_nodes[VNET_N_IP_FEAT];
-
/* Seed for Jenkins hash used to compute ip6 flow hash. */
u32 flow_hash_seed;
- struct {
+ struct
+ {
/* TTL to use for host generated packets. */
u8 ttl;
/* Global ip6 main structure. */
extern ip6_main_t ip6_main;
-#define VNET_IP6_UNICAST_FEATURE_INIT(x,...) \
- __VA_ARGS__ vnet_feature_registration_t uc_##x; \
-static void __vnet_add_feature_registration_uc_##x (void) \
- __attribute__((__constructor__)) ; \
-static void __vnet_add_feature_registration_uc_##x (void) \
-{ \
- ip6_main_t * im = &ip6_main; \
- uc_##x.next = im->next_feature[VNET_IP_RX_UNICAST_FEAT]; \
- im->next_feature[VNET_IP_RX_UNICAST_FEAT] = &uc_##x; \
-} \
-__VA_ARGS__ vnet_feature_registration_t uc_##x
-
-#define VNET_IP6_MULTICAST_FEATURE_INIT(x,...) \
- __VA_ARGS__ vnet_feature_registration_t mc_##x; \
-static void __vnet_add_feature_registration_mc_##x (void) \
- __attribute__((__constructor__)) ; \
-static void __vnet_add_feature_registration_mc_##x (void) \
-{ \
- ip6_main_t * im = &ip6_main; \
- mc_##x.next = im->next_feature[VNET_IP_RX_MULTICAST_FEAT]; \
- im->next_feature[VNET_IP_RX_MULTICAST_FEAT] = &mc_##x; \
-} \
-__VA_ARGS__ vnet_feature_registration_t mc_##x
-
-#define VNET_IP6_TX_FEATURE_INIT(x,...) \
- __VA_ARGS__ vnet_feature_registration_t tx_##x; \
-static void __vnet_add_feature_registration_tx_##x (void) \
- __attribute__((__constructor__)) ; \
-static void __vnet_add_feature_registration_tx_##x (void) \
-{ \
- ip6_main_t * im = &ip6_main; \
- tx_##x.next = im->next_feature[VNET_IP_TX_FEAT]; \
- im->next_feature[VNET_IP_TX_FEAT] = &tx_##x; \
-} \
-__VA_ARGS__ vnet_feature_registration_t tx_##x
-
-
/* Global ip6 input node. Errors get attached to ip6 input node. */
extern vlib_node_registration_t ip6_input_node;
extern vlib_node_registration_t ip6_rewrite_node;
extern vlib_node_registration_t ip6_icmp_neighbor_discovery_event_node;
/* ipv6 neighbor discovery - timer/event types */
-typedef enum {
+typedef enum
+{
ICMP6_ND_EVENT_INIT,
} ip6_icmp_neighbor_discovery_event_type_t;
-typedef union {
+typedef union
+{
u32 add_del_swindex;
- struct {
+ struct
+ {
u32 up_down_swindex;
u32 fib_index;
} up_down_event;
always_inline uword
ip6_destination_matches_route (const ip6_main_t * im,
const ip6_address_t * key,
- const ip6_address_t * dest,
- uword dest_length)
+ const ip6_address_t * dest, uword dest_length)
{
int i;
for (i = 0; i < ARRAY_LEN (key->as_uword); i++)
{
- if ((key->as_uword[i] ^ dest->as_uword[i]) & im->fib_masks[dest_length].as_uword[i])
+ if ((key->as_uword[i] ^ dest->as_uword[i]) & im->
+ fib_masks[dest_length].as_uword[i])
return 0;
}
return 1;
ip6_address_t * key,
ip_interface_address_t * ia)
{
- ip6_address_t * a = ip_interface_address_get_address (&im->lookup_main, ia);
+ ip6_address_t *a = ip_interface_address_get_address (&im->lookup_main, ia);
return ip6_destination_matches_route (im, key, a, ia->address_length);
}
int i;
for (i = 0; i < ARRAY_LEN (key->as_uword); i++)
{
- if ((clib_mem_unaligned (&key->as_uword[i], uword) ^ dest->as_uword[i]) & im->fib_masks[dest_length].as_uword[i])
+ if ((clib_mem_unaligned (&key->as_uword[i], uword) ^ dest->as_uword[i])
+ & im->fib_masks[dest_length].as_uword[i])
return 0;
}
return 1;
always_inline int
ip6_src_address_for_packet (ip_lookup_main_t * lm,
- u32 sw_if_index,
- ip6_address_t * src)
+ u32 sw_if_index, ip6_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);
- ip6_address_t *if_ip =
- ip_interface_address_get_address(lm, if_add);
- *src = *if_ip;
- 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);
+ ip6_address_t *if_ip = ip_interface_address_get_address (lm, if_add);
+ *src = *if_ip;
+ return (0);
}
- else
+ else
{
- src->as_u64[0] = 0;
- src->as_u64[1] = 0;
+ src->as_u64[0] = 0;
+ src->as_u64[1] = 0;
}
- return (!0);
+ return (!0);
}
/* Find interface address which matches destination. */
always_inline ip6_address_t *
-ip6_interface_address_matching_destination (ip6_main_t * im, ip6_address_t * dst, u32 sw_if_index,
- ip_interface_address_t ** result_ia)
+ip6_interface_address_matching_destination (ip6_main_t * im,
+ ip6_address_t * dst,
+ u32 sw_if_index,
+ ip_interface_address_t **
+ result_ia)
{
- ip_lookup_main_t * lm = &im->lookup_main;
- ip_interface_address_t * ia;
- ip6_address_t * result = 0;
+ ip_lookup_main_t *lm = &im->lookup_main;
+ ip_interface_address_t *ia;
+ ip6_address_t *result = 0;
+ /* *INDENT-OFF* */
foreach_ip_interface_address (lm, ia, sw_if_index,
1 /* honor unnumbered */,
({
break;
}
}));
+ /* *INDENT-ON* */
if (result_ia)
*result_ia = result ? ia : 0;
return result;
}
-clib_error_t *
-ip6_add_del_interface_address (vlib_main_t * vm, u32 sw_if_index,
- ip6_address_t * address, u32 address_length,
- u32 is_del);
-void
-ip6_sw_interface_enable_disable (u32 sw_if_index,
- u32 is_enable);
+clib_error_t *ip6_add_del_interface_address (vlib_main_t * vm,
+ u32 sw_if_index,
+ ip6_address_t * address,
+ u32 address_length, u32 is_del);
+void ip6_sw_interface_enable_disable (u32 sw_if_index, u32 is_enable);
int ip6_address_compare (ip6_address_t * a1, ip6_address_t * a2);
-clib_error_t *
-ip6_probe_neighbor (vlib_main_t * vm, ip6_address_t * dst, u32 sw_if_index);
+clib_error_t *ip6_probe_neighbor (vlib_main_t * vm, ip6_address_t * dst,
+ u32 sw_if_index);
-clib_error_t *
-ip6_set_neighbor_limit (u32 neighbor_limit);
+clib_error_t *ip6_set_neighbor_limit (u32 neighbor_limit);
uword
ip6_udp_register_listener (vlib_main_t * vm,
- u16 dst_port,
- u32 next_node_index);
+ u16 dst_port, u32 next_node_index);
-u16 ip6_tcp_udp_icmp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0, ip6_header_t * ip0, int *bogus_lengthp);
+u16 ip6_tcp_udp_icmp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0,
+ ip6_header_t * ip0,
+ int *bogus_lengthp);
void ip6_register_protocol (u32 protocol, u32 node_index);
serialize_function_t serialize_vnet_ip6_main, unserialize_vnet_ip6_main;
+void ip6_ethernet_update_adjacency (vnet_main_t * vnm,
+ u32 sw_if_index, u32 ai);
+
int
vnet_set_ip6_ethernet_neighbor (vlib_main_t * vm,
- u32 sw_if_index,
- ip6_address_t * a,
- u8 * link_layer_address,
- uword n_bytes_link_layer_address,
- int is_static);
+ u32 sw_if_index,
+ ip6_address_t * a,
+ u8 * link_layer_address,
+ uword n_bytes_link_layer_address,
+ int is_static);
int
vnet_unset_ip6_ethernet_neighbor (vlib_main_t * vm,
- u32 sw_if_index,
- ip6_address_t * a,
- u8 * link_layer_address,
- uword n_bytes_link_layer_address);
+ u32 sw_if_index,
+ ip6_address_t * a,
+ u8 * link_layer_address,
+ uword n_bytes_link_layer_address);
void
-ip6_link_local_address_from_ethernet_mac_address (ip6_address_t *ip,
- u8 *mac);
+ip6_link_local_address_from_ethernet_mac_address (ip6_address_t * ip,
+ u8 * mac);
void
-ip6_ethernet_mac_address_from_link_local_address (u8 *mac,
- ip6_address_t *ip);
+ip6_ethernet_mac_address_from_link_local_address (u8 * mac,
+ ip6_address_t * ip);
int vnet_set_ip6_flow_hash (u32 table_id,
flow_hash_config_t flow_hash_config);
int
-ip6_neighbor_ra_config(vlib_main_t * vm, u32 sw_if_index,
- u8 suppress, u8 managed, u8 other,
- u8 ll_option, u8 send_unicast, u8 cease,
- u8 use_lifetime, u32 lifetime,
- u32 initial_count, u32 initial_interval,
- u32 max_interval, u32 min_interval,
- u8 is_no);
+ip6_neighbor_ra_config (vlib_main_t * vm, u32 sw_if_index,
+ u8 suppress, u8 managed, u8 other,
+ u8 ll_option, u8 send_unicast, u8 cease,
+ u8 use_lifetime, u32 lifetime,
+ u32 initial_count, u32 initial_interval,
+ u32 max_interval, u32 min_interval, u8 is_no);
int
-ip6_neighbor_ra_prefix(vlib_main_t * vm, u32 sw_if_index,
- ip6_address_t *prefix_addr, u8 prefix_len,
- u8 use_default, u32 val_lifetime, u32 pref_lifetime,
- u8 no_advertise, u8 off_link, u8 no_autoconfig, u8 no_onlink,
- u8 is_no);
+ip6_neighbor_ra_prefix (vlib_main_t * vm, u32 sw_if_index,
+ ip6_address_t * prefix_addr, u8 prefix_len,
+ u8 use_default, u32 val_lifetime, u32 pref_lifetime,
+ u8 no_advertise, u8 off_link, u8 no_autoconfig,
+ u8 no_onlink, u8 is_no);
-clib_error_t *
-enable_ip6_interface(vlib_main_t * vm,
- u32 sw_if_index);
+clib_error_t *enable_ip6_interface (vlib_main_t * vm, u32 sw_if_index);
-clib_error_t *
-disable_ip6_interface(vlib_main_t * vm,
- u32 sw_if_index);
+clib_error_t *disable_ip6_interface (vlib_main_t * vm, u32 sw_if_index);
-int
-ip6_interface_enabled(vlib_main_t * vm,
- u32 sw_if_index);
+int ip6_interface_enabled (vlib_main_t * vm, u32 sw_if_index);
-clib_error_t *
-set_ip6_link_local_address(vlib_main_t * vm,
- u32 sw_if_index,
- ip6_address_t *address,
- u8 address_length);
+clib_error_t *set_ip6_link_local_address (vlib_main_t * vm,
+ u32 sw_if_index,
+ ip6_address_t * address,
+ u8 address_length);
-void vnet_register_ip6_neighbor_resolution_event(vnet_main_t * vnm,
- void * address_arg,
- uword node_index,
- uword type_opaque,
- uword data);
+void vnet_register_ip6_neighbor_resolution_event (vnet_main_t * vnm,
+ void *address_arg,
+ uword node_index,
+ uword type_opaque,
+ uword data);
int vnet_add_del_ip6_nd_change_event (vnet_main_t * vnm,
- void * data_callback,
+ void *data_callback,
u32 pid,
- void * address_arg,
+ void *address_arg,
uword node_index,
uword type_opaque,
- uword data,
- int is_add);
+ uword data, int is_add);
int vnet_ip6_nd_term (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_buffer_t * p0,
ethernet_header_t * eth,
ip6_header_t * ip,
- u32 sw_if_index,
- u16 bd_index,
- u8 shg);
+ u32 sw_if_index, u16 bd_index, u8 shg);
int vnet_set_ip6_classify_intfc (vlib_main_t * vm, u32 sw_if_index,
- u32 table_index);
+ u32 table_index);
extern vlib_node_registration_t ip6_lookup_node;
/* Compute flow hash. We'll use it to select which Sponge to use for this
ip6_compute_flow_hash (const ip6_header_t * ip,
flow_hash_config_t flow_hash_config)
{
- tcp_header_t * tcp = (void *) (ip + 1);
- u64 a, b, c;
- u64 t1, t2;
- uword is_tcp_udp = (ip->protocol == IP_PROTOCOL_TCP
- || ip->protocol == IP_PROTOCOL_UDP);
+ tcp_header_t *tcp = (void *) (ip + 1);
+ u64 a, b, c;
+ u64 t1, t2;
+ uword is_tcp_udp = (ip->protocol == IP_PROTOCOL_TCP
+ || ip->protocol == IP_PROTOCOL_UDP);
- t1 = (ip->src_address.as_u64[0] ^ ip->src_address.as_u64[1]);
- t1 = (flow_hash_config & IP_FLOW_HASH_SRC_ADDR) ? t1 : 0;
+ t1 = (ip->src_address.as_u64[0] ^ ip->src_address.as_u64[1]);
+ t1 = (flow_hash_config & IP_FLOW_HASH_SRC_ADDR) ? t1 : 0;
- t2 = (ip->dst_address.as_u64[0] ^ ip->dst_address.as_u64[1]);
- t2 = (flow_hash_config & IP_FLOW_HASH_DST_ADDR) ? t2 : 0;
+ t2 = (ip->dst_address.as_u64[0] ^ ip->dst_address.as_u64[1]);
+ t2 = (flow_hash_config & IP_FLOW_HASH_DST_ADDR) ? t2 : 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;
+ 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->ports.src : 0;
- t2 = is_tcp_udp ? tcp->ports.dst : 0;
+ t1 = is_tcp_udp ? tcp->ports.src : 0;
+ t2 = is_tcp_udp ? tcp->ports.dst : 0;
- t1 = (flow_hash_config & IP_FLOW_HASH_SRC_PORT) ? t1 : 0;
- t2 = (flow_hash_config & IP_FLOW_HASH_DST_PORT) ? t2 : 0;
+ t1 = (flow_hash_config & IP_FLOW_HASH_SRC_PORT) ? t1 : 0;
+ t2 = (flow_hash_config & IP_FLOW_HASH_DST_PORT) ? t2 : 0;
- c = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ?
- ((t1<<16) | t2) : ((t2<<16) | t1);
+ c = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ?
+ ((t1 << 16) | t2) : ((t2 << 16) | t1);
- hash_mix64 (a, b, c);
- return (u32) c;
+ hash_mix64 (a, b, c);
+ return (u32) c;
}
/*
* Hop-by-Hop handling
*/
-typedef struct {
+typedef struct
+{
/* Array of function pointers to HBH option handling routines */
- int (*options[256])(vlib_buffer_t *b, ip6_header_t *ip, ip6_hop_by_hop_option_t *opt);
- u8 *(*trace[256])(u8 *s, ip6_hop_by_hop_option_t *opt);
+ int (*options[256]) (vlib_buffer_t * b, ip6_header_t * ip,
+ ip6_hop_by_hop_option_t * opt);
+ u8 *(*trace[256]) (u8 * s, ip6_hop_by_hop_option_t * opt);
uword next_override;
} ip6_hop_by_hop_main_t;
extern ip6_hop_by_hop_main_t ip6_hop_by_hop_main;
int ip6_hbh_register_option (u8 option,
- int options(vlib_buffer_t *b, ip6_header_t *ip, ip6_hop_by_hop_option_t *opt),
- u8 *trace(u8 *s, ip6_hop_by_hop_option_t *opt));
+ int options (vlib_buffer_t * b,
+ ip6_header_t * ip,
+ ip6_hop_by_hop_option_t * opt),
+ u8 * trace (u8 * s,
+ ip6_hop_by_hop_option_t * opt));
int ip6_hbh_unregister_option (u8 option);
void ip6_hbh_set_next_override (uword next);
/* Flag used by IOAM code. Classifier sets it pop-hop-by-hop checks it */
-#define OI_DECAP 100
+#define OI_DECAP 0x80000000
#endif /* included_ip_ip6_h */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
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