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#ifndef _FA_NODE_H_
#define _FA_NODE_H_
#include <stddef.h>
#include "bihash_40_8.h"
#define TCP_FLAG_FIN 0x01
#define TCP_FLAG_SYN 0x02
#define TCP_FLAG_RST 0x04
#define TCP_FLAG_PUSH 0x08
#define TCP_FLAG_ACK 0x10
#define TCP_FLAG_URG 0x20
#define TCP_FLAG_ECE 0x40
#define TCP_FLAG_CWR 0x80
#define TCP_FLAGS_RSTFINACKSYN (TCP_FLAG_RST + TCP_FLAG_FIN + TCP_FLAG_SYN + TCP_FLAG_ACK)
#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
typedef union {
u64 as_u64;
struct {
u8 tcp_flags_valid;
u8 tcp_flags;
u8 is_input;
u8 l4_valid;
};
} fa_packet_info_t;
typedef union {
u64 as_u64;
struct {
u16 port[2];
u16 proto;
u16 rsvd;
};
} fa_session_l4_key_t;
typedef union {
struct {
ip46_address_t addr[2];
fa_session_l4_key_t l4;
/* This field should align with u64 value in bihash_40_8 keyvalue struct */
fa_packet_info_t pkt;
};
clib_bihash_kv_40_8_t kv;
} fa_5tuple_t;
typedef struct {
fa_5tuple_t info; /* (5+1)*8 = 48 bytes */
u64 last_active_time; /* +8 bytes = 56 */
u32 sw_if_index; /* +4 bytes = 60 */
union {
u8 as_u8[2];
u16 as_u16;
} tcp_flags_seen; ; /* +2 bytes = 62 */
u8 link_list_id; /* +1 bytes = 63 */
u8 reserved1; /* +1 bytes = 64 */
u32 link_prev_idx;
u32 link_next_idx;
u64 reserved2[7];
} fa_session_t;
/*
* A few compile-time constraints on the size and the layout of the union, to ensure
* it makes sense both for bihash and for us.
*/
#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_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));
/* Let's try to fit within the cacheline */
CT_ASSERT_EQUAL(fa_session_t_size_is_64, sizeof(fa_session_t), 128);
#undef CT_ASSERT_EQUAL
typedef enum {
ACL_FA_ERROR_DROP,
ACL_FA_N_NEXT,
} acl_fa_next_t;
enum
{
ACL_FA_CLEANER_RESCHEDULE = 1,
ACL_FA_CLEANER_DELETE_BY_SW_IF_INDEX,
} acl_fa_cleaner_process_event_e;
void acl_fa_enable_disable(u32 sw_if_index, int is_input, int enable_disable);
#endif
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