142 lines
2.9 KiB
C
142 lines
2.9 KiB
C
/*
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* The current file is private to the plugin, and pulgin can only use session.h
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* The current file can only be used by session.cpp/session_pool.cpp/session_table.cpp
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*/
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#ifndef _SESSION_PRIVATE_H
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#define _SESSION_PRIVATE_H
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#ifdef __cpluscplus
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extern "C"
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{
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#endif
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#include "timeout.h"
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#include "uthash.h"
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#include "session.h"
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#define EX_DATA_MAX_COUNT 128
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#define SESSION_EVENT_QUEUE_SIZE 256
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enum tcp_ex_data
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{
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// HANDSHAKE
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TCP_SYN_RECVED = 1 << 0,
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TCP_SYNACK_RECVED = 1 << 1,
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// ESTABLISHED
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TCP_C2S_PAYLOAD_RECVED = 1 << 2,
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TCP_S2C_PAYLOAD_RECVED = 1 << 3,
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// FIN
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TCP_C2S_FIN_RECVED = 1 << 4,
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TCP_S2C_FIN_RECVED = 1 << 5,
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// RST
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TCP_C2S_RST_RECVED = 1 << 6,
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TCP_S2C_RST_RECVED = 1 << 7,
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};
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enum udp_ex_data
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{
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UDP_C2S_RECVED = 1 << 0,
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UDP_S2C_RECVED = 1 << 1,
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};
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struct event_queue
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{
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uint32_t head_idx;
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uint32_t tail_idx;
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uint32_t events[SESSION_EVENT_QUEUE_SIZE];
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};
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struct session
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{
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// session id
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uint64_t id;
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// session state
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enum session_state state;
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// session type
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enum session_type type;
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// session metrics
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uint64_t c2s_bytes;
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uint64_t s2c_bytes;
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uint64_t c2s_packets;
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uint64_t s2c_packets;
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// session metadata
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struct metadata c2s_1st_md;
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struct metadata s2c_1st_md;
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// session timestamp
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uint64_t create_time;
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uint64_t last_time;
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/******************************
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* Session Current Packet
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******************************/
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// session current packet
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const struct packet *cur_pkt;
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enum session_dir cur_dir;
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/******************************
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* Session Ev Queue Zone
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******************************/
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struct event_queue events;
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/******************************
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* Session Ex Data Zone
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******************************/
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void *ex_data[EX_DATA_MAX_COUNT];
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/******************************
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* Session Timer Zone
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******************************/
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// session timer
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struct timeout timeout;
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session_expire_cb expire_cb;
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void *expire_arg;
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uint64_t expire_abs_ts;
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/******************************
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* Session Pool Zone
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******************************/
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// session pool recycle handle
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struct session *next_free_ptr;
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/******************************
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* Session Table Zone
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******************************/
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// session table key
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struct tuple6 tuple;
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enum session_dir tuple_dir;
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struct session *next_ptr;
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struct session *prev_ptr;
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// session table handle
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UT_hash_handle hh;
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/******************************
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* Session Queue Zone
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******************************/
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struct session *next_ready_ptr;
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};
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// tcp_builtin_ex = session_get_ex_new_index("tcp_builtin_ex", NULL, NULL);
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// udp_builtin_ex = session_get_ex_new_index("udp_builtin_ex", NULL, NULL);
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extern uint8_t tcp_builtin_ex;
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extern uint8_t udp_builtin_ex;
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#ifdef __cpluscplus
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}
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#endif
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#endif
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