#define included_ip_ip6_h
#include <vlib/mc.h>
+#include <vlib/buffer.h>
+#include <vnet/ethernet/packet.h>
#include <vnet/ip/ip6_packet.h>
+#include <vnet/ip/ip6_hop_by_hop_packet.h>
#include <vnet/ip/lookup.h>
-
+#include <vnet/ip/ip_feature_registration.h>
+#include <stdbool.h>
#include <vppinfra/bihash_24_8.h>
#include <vppinfra/bihash_template.h>
u32 index;
/* flow hash configuration */
- u32 flow_hash_config;
+ flow_hash_config_t flow_hash_config;
} ip6_fib_t;
struct ip6_main_t;
-typedef void (ip6_add_del_route_function_t)
- (struct ip6_main_t * im,
- uword opaque,
- ip6_fib_t * fib,
- u32 flags,
- ip6_address_t * address,
- u32 address_length,
- void * old_result,
- void * new_result);
-
-typedef struct {
- ip6_add_del_route_function_t * function;
- uword required_flags;
- uword function_opaque;
-} ip6_add_del_route_callback_t;
-
typedef void (ip6_add_del_interface_address_function_t)
(struct ip6_main_t * im,
uword opaque,
uword function_opaque;
} ip6_add_del_interface_address_callback_t;
-typedef enum {
- /* First check access list to either permit or deny this
- packet based on classification. */
- IP6_RX_FEATURE_CHECK_ACCESS,
-
- /* RPF check: verify that source address is reachable via
- RX interface or via any interface. */
- IP6_RX_FEATURE_CHECK_SOURCE_REACHABLE_VIA_RX,
- IP6_RX_FEATURE_CHECK_SOURCE_REACHABLE_VIA_ANY,
-
- /* IPSec */
- IP6_RX_FEATURE_IPSEC,
-
- /* Intercept and decap L2TPv3 packets. */
- IP6_RX_FEATURE_L2TPV3,
-
- /* vPath forwarding: won't return to call next feature
- so any feature needed before vPath forwarding must be prior
- to this entry */
- IP6_RX_FEATURE_VPATH,
-
- /* Must be last: perform forwarding lookup. */
- IP6_RX_FEATURE_LOOKUP,
-
- IP6_N_RX_FEATURE,
-} ip6_rx_feature_type_t;
-
-typedef struct ip6_main_t {
- BVT(clib_bihash) ip6_lookup_table;
-
- ip_lookup_main_t lookup_main;
+/**
+ * Enumeration of the FIB table instance types
+ */
+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,
+ /**
+ * 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_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_ {
+ /* The hash table */
+ 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;
i32 dst_address_length_refcounts[129];
+} ip6_fib_table_instance_t;
+
+typedef struct ip6_main_t {
+ /**
+ * The two FIB tables; fwding and non-fwding
+ */
+ ip6_fib_table_instance_t ip6_table[IP6_FIB_NUM_TABLES];
+
+ ip_lookup_main_t lookup_main;
- /* Vector of FIBs. */
- ip6_fib_t * fibs;
+ /* Pool of 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;
+ /* IP6 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. */
- ip6_add_del_route_callback_t * add_del_route_callbacks;
-
/* Hash table mapping interface rewrite adjacency index by sw if index. */
uword * interface_route_adj_index_by_sw_if_index;
/* Template used to generate IP6 neighbor solicitation packets. */
vlib_packet_template_t discover_neighbor_packet_template;
- u32 * discover_neighbor_next_index_by_hw_if_index;
-
/* ip6 lookup table config parameters */
u32 lookup_table_nbuckets;
uword lookup_table_size;
+ /* feature path configuration lists */
+ vnet_ip_feature_registration_t * next_uc_feature;
+ vnet_ip_feature_registration_t * next_mc_feature;
+ vnet_ip_feature_registration_t * next_tx_feature;
+
+ /* Built-in unicast feature path indices, see ip_feature_init_cast(...) */
+ u32 ip6_unicast_rx_feature_check_access;
+ u32 ip6_unicast_rx_feature_policer_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;
u8 pad[3];
} host_config;
+
+ /* HBH processing enabled? */
+ u8 hbh_enabled;
} ip6_main_t;
/* Global ip6 main structure. */
extern ip6_main_t ip6_main;
+#define VNET_IP6_UNICAST_FEATURE_INIT(x,...) \
+ __VA_ARGS__ vnet_ip_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_uc_feature; \
+ im->next_uc_feature = &uc_##x; \
+} \
+__VA_ARGS__ vnet_ip_feature_registration_t uc_##x
+
+#define VNET_IP6_MULTICAST_FEATURE_INIT(x,...) \
+ __VA_ARGS__ vnet_ip_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_mc_feature; \
+ im->next_mc_feature = &mc_##x; \
+} \
+__VA_ARGS__ vnet_ip_feature_registration_t mc_##x
+
+#define VNET_IP6_TX_FEATURE_INIT(x,...) \
+ __VA_ARGS__ vnet_ip_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_tx_feature; \
+ im->next_tx_feature = &tx_##x; \
+} \
+__VA_ARGS__ vnet_ip_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_rewrite_local_node;
extern vlib_node_registration_t ip6_discover_neighbor_node;
+extern vlib_node_registration_t ip6_glean_node;
+extern vlib_node_registration_t ip6_midchain_node;
extern vlib_node_registration_t ip6_icmp_neighbor_discovery_event_node;
} up_down_event;
} ip6_icmp_neighbor_discovery_event_data_t;
-u32 ip6_fib_lookup (ip6_main_t * im, u32 sw_if_index, ip6_address_t * dst);
-u32 ip6_fib_lookup_with_table (ip6_main_t * im, u32 fib_index,
- ip6_address_t * dst);
-ip6_fib_t * find_ip6_fib_by_table_index_or_id (ip6_main_t * im,
- u32 table_index_or_id,
- u32 flags);
-
always_inline uword
-ip6_destination_matches_route (ip6_main_t * im,
- ip6_address_t * key,
- ip6_address_t * dest,
+ip6_destination_matches_route (const ip6_main_t * im,
+ const ip6_address_t * key,
+ const ip6_address_t * dest,
uword dest_length)
{
int i;
return 1;
}
-always_inline void
-ip6_src_address_for_packet (ip6_main_t * im, vlib_buffer_t * p, ip6_address_t * src, u32 sw_if_index)
+always_inline int
+ip6_src_address_for_packet (ip_lookup_main_t * lm,
+ u32 sw_if_index,
+ ip6_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);
- ip6_address_t * a = ip_interface_address_get_address (lm, ia);
- *src = a[0];
-}
-
-always_inline u32
-ip6_src_lookup_for_packet (ip6_main_t * im, vlib_buffer_t * b, ip6_header_t * i)
-{
- if (vnet_buffer (b)->ip.adj_index[VLIB_RX] == ~0)
- vnet_buffer (b)->ip.adj_index[VLIB_RX]
- = ip6_fib_lookup (im, vnet_buffer (b)->sw_if_index[VLIB_RX],
- &i->src_address);
- return vnet_buffer (b)->ip.adj_index[VLIB_RX];
+ 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
+ {
+ src->as_u64[0] = 0;
+ src->as_u64[1] = 0;
+ }
+ return (!0);
}
/* Find interface address which matches destination. */
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);
-/* Add/del a route to the FIB. */
-
-#define IP6_ROUTE_FLAG_ADD (0 << 0)
-#define IP6_ROUTE_FLAG_DEL (1 << 0)
-#define IP6_ROUTE_FLAG_TABLE_ID (0 << 1)
-#define IP6_ROUTE_FLAG_FIB_INDEX (1 << 1)
-#define IP6_ROUTE_FLAG_KEEP_OLD_ADJACENCY (1 << 2)
-#define IP6_ROUTE_FLAG_NO_REDISTRIBUTE (1 << 3)
-#define IP6_ROUTE_FLAG_NOT_LAST_IN_GROUP (1 << 4)
-/* Dynamic route created via neighbor discovery. */
-#define IP6_ROUTE_FLAG_NEIGHBOR (1 << 5)
-
-typedef struct {
- /* IP6_ROUTE_FLAG_* */
- u32 flags;
-
- /* Either index of fib or table_id to hash and get fib.
- IP6_ROUTE_FLAG_FIB_INDEX specifies index; otherwise table_id is assumed. */
- u32 table_index_or_table_id;
-
- /* Destination address (prefix) and length. */
- ip6_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;
-} ip6_add_del_route_args_t;
-
-void ip6_add_del_route (ip6_main_t * im, ip6_add_del_route_args_t * args);
-
-void ip6_add_del_route_next_hop (ip6_main_t * im,
- u32 flags,
- ip6_address_t * dst_address,
- u32 dst_address_length,
- ip6_address_t * next_hop,
- u32 next_hop_sw_if_index,
- u32 next_hop_weight, u32 adj_index,
- u32 explicit_fib_index);
-u32
-ip6_get_route (ip6_main_t * im,
- u32 fib_index_or_table_id,
- u32 flags,
- ip6_address_t * address,
- u32 address_length);
-
-void
-ip6_foreach_matching_route (ip6_main_t * im,
- u32 table_index_or_table_id,
- u32 flags,
- ip6_address_t * address,
- u32 address_length,
- ip6_address_t ** results,
- u8 ** result_length);
-
-void ip6_delete_matching_routes (ip6_main_t * im,
- u32 table_index_or_table_id,
- u32 flags,
- ip6_address_t * address,
- u32 address_length);
-
-void ip6_maybe_remap_adjacencies (ip6_main_t * im,
- u32 table_index_or_table_id,
- u32 flags);
-
-void ip6_adjacency_set_interface_route (vnet_main_t * vnm,
- ip_adjacency_t * adj,
- u32 sw_if_index,
- u32 if_address_index);
-
clib_error_t *
ip6_probe_neighbor (vlib_main_t * vm, ip6_address_t * dst, u32 sw_if_index);
u32 sw_if_index,
ip6_address_t * a,
u8 * link_layer_address,
- uword n_bytes_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);
-void
-vnet_ip6_fib_init (ip6_main_t * im, u32 fib_index);
void
ip6_link_local_address_from_ethernet_mac_address (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, u32 flow_hash_config);
+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 surpress, u8 managed, u8 other,
+ 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,
uword type_opaque,
uword data);
+int vnet_add_del_ip6_nd_change_event (vnet_main_t * vnm,
+ void * data_callback,
+ u32 pid,
+ void * address_arg,
+ uword node_index,
+ uword type_opaque,
+ 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);
+
int vnet_set_ip6_classify_intfc (vlib_main_t * vm, u32 sw_if_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
flow. And other things. */
always_inline u32
-ip6_compute_flow_hash (ip6_header_t * ip, u32 flow_hash_config)
+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;
return (u32) c;
}
+/*
+ * Hop-by-Hop handling
+ */
+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);
+ 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 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
+
#endif /* included_ip_ip6_h */
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