#include <vlib/mc.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>
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;
/* 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;
+
+ /* Built-in unicast feature path indices, see ip_feature_init_cast(...) */
+ u32 ip6_unicast_rx_feature_check_access;
+ 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;
+
+ /* Built-in multicast feature path indices */
+ u32 ip6_multicast_rx_feature_vpath;
+ u32 ip6_multicast_rx_feature_lookup;
+
/* 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
+
/* 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_icmp_neighbor_discovery_event_node;
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);
+
+/**
+ * \brief Get or create an IPv6 fib.
+ *
+ * Get or create an IPv6 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
+ * ip6_main pointer.
+ * \param table_index_or_id
+ * The table index if \c IP6_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, it is 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 IP6_ROUTE_FLAG_FIB_INDEX is set, \p table_index_or_id
+ * is considered as the fib index, and the fib ID otherwise.
+ * \return A pointer to the retrieved or created fib.
+ *
+ * \remark When getting a fib with the fib index, the fib MUST already exist.
+ */
ip6_fib_t * find_ip6_fib_by_table_index_or_id (ip6_main_t * im,
u32 table_index_or_id,
u32 flags);
return 1;
}
-always_inline void
+always_inline int
ip6_src_address_for_packet (ip6_main_t * im, vlib_buffer_t * p, ip6_address_t * src, u32 sw_if_index)
{
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;
ip6_address_t * a = ip_interface_address_get_address (lm, ia);
*src = a[0];
+ return 0;
}
always_inline u32
u32 sw_if_index,
u32 if_address_index);
+u32
+vnet_ip6_neighbor_glean_add(u32 fib_index, void * next_hop_arg);
+
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);
-uword
-ip6_tcp_register_listener (vlib_main_t * vm,
- u16 dst_port,
- u32 next_node_index);
uword
ip6_udp_register_listener (vlib_main_t * vm,
u16 dst_port,
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,
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);
+} 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);
+
+/* Flag used by IOAM code. Classifier sets it pop-hop-by-hop checks it */
+#define OI_DECAP 100
+
#endif /* included_ip_ip6_h */
Code Review / vpp.git / blobdiff