#define _FA_NODE_H_
#include <stddef.h>
+#include <vppinfra/bihash_16_8.h>
#include <vppinfra/bihash_40_8.h>
+#include <plugins/acl/exported_types.h>
+
+// #define FA_NODE_VERBOSE_DEBUG 3
+
#define TCP_FLAG_FIN 0x01
#define TCP_FLAG_SYN 0x02
#define TCP_FLAG_RST 0x04
#define TCP_FLAGS_ACKSYN (TCP_FLAG_SYN + TCP_FLAG_ACK)
#define ACL_FA_CONN_TABLE_DEFAULT_HASH_NUM_BUCKETS (64 * 1024)
-#define ACL_FA_CONN_TABLE_DEFAULT_HASH_MEMORY_SIZE (1<<30)
-#define ACL_FA_CONN_TABLE_DEFAULT_MAX_ENTRIES 1000000
+#define ACL_FA_CONN_TABLE_DEFAULT_HASH_MEMORY_SIZE (1ULL<<30)
+#define ACL_FA_CONN_TABLE_DEFAULT_MAX_ENTRIES 500000
typedef union {
u64 as_u64;
struct {
- u32 sw_if_index;
+ u32 lc_index;
u16 mask_type_index_lsb;
u8 tcp_flags;
u8 tcp_flags_valid:1;
- u8 is_input:1;
u8 l4_valid:1;
u8 is_nonfirst_fragment:1;
u8 is_ip6:1;
- u8 flags_reserved:3;
+ u8 flags_reserved:4;
};
} fa_packet_info_t;
+typedef enum {
+ FA_SK_L4_FLAG_IS_INPUT = (1 << 0),
+ FA_SK_L4_FLAG_IS_SLOWPATH = (1 << 1),
+} fa_session_l4_key_l4_flags_t;
+
typedef union {
u64 as_u64;
struct {
u16 port[2];
- u16 proto;
- u16 lsb_of_sw_if_index;
+ union {
+ struct {
+ u8 proto;
+ u8 l4_flags;
+ u16 lsb_of_sw_if_index;
+ };
+ u32 non_port_l4_data;
+ };
};
} fa_session_l4_key_t;
+
+static_always_inline
+int is_session_l4_key_u64_slowpath(u64 l4key) {
+ fa_session_l4_key_t k = { .as_u64 = l4key };
+ return (k.l4_flags & FA_SK_L4_FLAG_IS_SLOWPATH) ? 1 : 0;
+}
+
typedef union {
struct {
- ip46_address_t addr[2];
+ union {
+ struct {
+ /* we put the IPv4 addresses
+ after padding so we can still
+ use them as (shorter) key together with
+ L4 info */
+ u32 l3_zero_pad[6];
+ ip4_address_t ip4_addr[2];
+ };
+ ip6_address_t ip6_addr[2];
+ };
fa_session_l4_key_t l4;
- /* This field should align with u64 value in bihash_40_8 keyvalue struct */
+ /* This field should align with u64 value in bihash_40_8 and bihash_16_8 keyvalue struct */
fa_packet_info_t pkt;
};
- clib_bihash_kv_40_8_t kv;
+ clib_bihash_kv_40_8_t kv_40_8;
+ struct {
+ u64 padding_for_kv_16_8[3];
+ clib_bihash_kv_16_8_t kv_16_8;
+ };
} fa_5tuple_t;
+static_always_inline u8 *
+format_fa_session_l4_key(u8 * s, va_list * args)
+{
+ fa_session_l4_key_t *l4 = va_arg (*args, fa_session_l4_key_t *);
+ int is_input = (l4->l4_flags & FA_SK_L4_FLAG_IS_INPUT) ? 1 : 0;
+ int is_slowpath = (l4->l4_flags & FA_SK_L4_FLAG_IS_SLOWPATH) ? 1 : 0;
+
+ return (format (s, "l4 lsb_of_sw_if_index %d proto %d l4_is_input %d l4_slow_path %d l4_flags 0x%02x port %d -> %d",
+ l4->lsb_of_sw_if_index,
+ l4->proto, is_input, is_slowpath,
+ l4->l4_flags, l4->port[0], l4->port[1]));
+}
typedef struct {
fa_5tuple_t info; /* (5+1)*8 = 48 bytes */
u32 link_prev_idx; /* +4 bytes = 12 */
u32 link_next_idx; /* +4 bytes = 16 */
u8 link_list_id; /* +1 bytes = 17 */
- u8 reserved1[7]; /* +7 bytes = 24 */
+ u8 deleted; /* +1 bytes = 18 */
+ u8 is_ip6; /* +1 bytes = 19 */
+ u8 reserved1[5]; /* +5 bytes = 24 */
u64 reserved2[5]; /* +5*8 bytes = 64 */
} fa_session_t;
+#define FA_POLICY_EPOCH_MASK 0x7fff
+/* input policy epochs have the MSB set */
+#define FA_POLICY_EPOCH_IS_INPUT 0x8000
+
/* This structure is used to fill in the u64 value
in the per-sw-if-index hash table */
struct {
u32 session_index;
u16 thread_index;
- u16 reserved0;
+ u16 intf_policy_epoch;
};
};
} fa_full_session_id_t;
#define CT_ASSERT_EQUAL(name, x,y) typedef int assert_ ## name ## _compile_time_assertion_failed[((x) == (y))-1]
CT_ASSERT_EQUAL(fa_l3_key_size_is_40, offsetof(fa_5tuple_t, pkt), offsetof(clib_bihash_kv_40_8_t, value));
+CT_ASSERT_EQUAL(fa_ip6_kv_val_at_pkt, offsetof(fa_5tuple_t, pkt), offsetof(fa_5tuple_t, kv_40_8.value));
+CT_ASSERT_EQUAL(fa_ip4_kv_val_at_pkt, offsetof(fa_5tuple_t, pkt), offsetof(fa_5tuple_t, kv_16_8.value));
CT_ASSERT_EQUAL(fa_l4_key_t_is_8, sizeof(fa_session_l4_key_t), sizeof(u64));
CT_ASSERT_EQUAL(fa_packet_info_t_is_8, sizeof(fa_packet_info_t), sizeof(u64));
CT_ASSERT_EQUAL(fa_l3_kv_size_is_48, sizeof(fa_5tuple_t), sizeof(clib_bihash_kv_40_8_t));
+CT_ASSERT_EQUAL(fa_ip4_starts_at_kv16_key, offsetof(fa_5tuple_t, ip4_addr), offsetof(fa_5tuple_t, kv_16_8));
+CT_ASSERT_EQUAL(fa_ip4_and_ip6_kv_value_match, offsetof(fa_5tuple_t, kv_16_8.value), offsetof(fa_5tuple_t, kv_40_8.value));
/* Let's try to fit within two cachelines */
CT_ASSERT_EQUAL(fa_session_t_size_is_128, sizeof(fa_session_t), 128);
/* Session ID MUST be the same as u64 */
CT_ASSERT_EQUAL(fa_full_session_id_size_is_64, sizeof(fa_full_session_id_t), sizeof(u64));
+
+CT_ASSERT_EQUAL(fa_5tuple_opaque_t_must_match_5tuple, sizeof(fa_5tuple_opaque_t), sizeof(fa_5tuple_t));
#undef CT_ASSERT_EQUAL
+#define FA_SESSION_BOGUS_INDEX ~0
+
typedef struct {
/* The pool of sessions managed by this worker */
fa_session_t *fa_sessions_pool;
+ /* incoming session change requests from other workers */
+ clib_spinlock_t pending_session_change_request_lock;
+ u64 *pending_session_change_requests;
+ u64 *wip_session_change_requests;
+ u64 rcvd_session_change_requests;
+ u64 sent_session_change_requests;
/* per-worker ACL_N_TIMEOUTS of conn lists */
u32 *fa_conn_list_head;
u32 *fa_conn_list_tail;
+ /* expiry time set whenever an element is enqueued */
+ u64 *fa_conn_list_head_expiry_time;
/* adds and deletes per-worker-per-interface */
u64 *fa_session_dels_by_sw_if_index;
u64 *fa_session_adds_by_sw_if_index;
+ /* sessions deleted due to epoch change */
+ u64 *fa_session_epoch_change_by_sw_if_index;
/* Vector of expired connections retrieved from lists */
u32 *expired;
/* the earliest next expiry time */
* Set to copy of a "generation" counter in main thread so we can sync the interrupts.
*/
int interrupt_generation;
+ /*
+ * work in progress data for the pipelined node operation
+ */
+ vlib_buffer_t *bufs[VLIB_FRAME_SIZE];
+ u32 sw_if_indices[VLIB_FRAME_SIZE];
+ fa_5tuple_t fa_5tuples[VLIB_FRAME_SIZE];
+ u64 hashes[VLIB_FRAME_SIZE];
+ u16 nexts[VLIB_FRAME_SIZE];
+
} acl_fa_per_worker_data_t;
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