152 lines
3.5 KiB
C
152 lines
3.5 KiB
C
#pragma once
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#include "stellar/packet.h"
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enum session_state
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{
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SESSION_STATE_INIT = 0,
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SESSION_STATE_OPENING = 1,
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SESSION_STATE_ACTIVE = 2,
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SESSION_STATE_CLOSING = 3,
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SESSION_STATE_DISCARD = 4,
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SESSION_STATE_CLOSED = 5,
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MAX_STATE = 6,
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};
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enum session_type
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{
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SESSION_TYPE_TCP = 0x1,
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SESSION_TYPE_UDP = 0x2,
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};
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enum session_direction
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{
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SESSION_DIRECTION_INBOUND = 0,
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SESSION_DIRECTION_OUTBOUND = 1,
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};
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enum flow_type
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{
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FLOW_TYPE_NONE = -1,
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FLOW_TYPE_C2S = 0,
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FLOW_TYPE_S2C = 1,
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MAX_FLOW_TYPE = 2,
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};
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enum closing_reason
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{
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CLOSING_BY_TIMEOUT = 0x1,
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CLOSING_BY_LRU_EVICTED = 0x2,
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CLOSING_BY_PORT_REUSE_EVICTED = 0x3,
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CLOSING_BY_CLIENT_FIN = 0x4,
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CLOSING_BY_CLIENT_RST = 0x5,
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CLOSING_BY_SERVER_FIN = 0x6,
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CLOSING_BY_SERVER_RST = 0x7,
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};
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enum session_stat
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{
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// raw packet
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STAT_RAW_PACKETS_RECEIVED,
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STAT_RAW_BYTES_RECEIVED,
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STAT_RAW_PACKETS_TRANSMITTED,
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STAT_RAW_BYTES_TRANSMITTED,
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STAT_RAW_PACKETS_DROPPED,
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STAT_RAW_BYTES_DROPPED,
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// duplicate packets
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STAT_DUPLICATE_PACKETS_BYPASS,
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STAT_DUPLICATE_BYTES_BYPASS,
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// injected packet
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STAT_INJECTED_PACKETS_FAILED,
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STAT_INJECTED_PACKETS_SUCCESS,
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STAT_INJECTED_BYTES_SUCCESS,
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// control packet
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STAT_CONTROL_PACKETS_RECEIVED, // TODO
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STAT_CONTROL_BYTES_RECEIVED, // TODO
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STAT_CONTROL_PACKETS_TRANSMITTED,
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STAT_CONTROL_BYTES_TRANSMITTED,
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STAT_CONTROL_PACKETS_DROPPED,
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STAT_CONTROL_BYTES_DROPPED,
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// TCP segment
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STAT_TCP_SEGMENTS_RECEIVED,
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STAT_TCP_PAYLOADS_RECEIVED,
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STAT_TCP_SEGMENTS_EXPIRED,
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STAT_TCP_PAYLOADS_EXPIRED,
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STAT_TCP_SEGMENTS_RETRANSMIT,
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STAT_TCP_PAYLOADS_RETRANSMIT,
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STAT_TCP_SEGMENTS_OVERLAP,
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STAT_TCP_PAYLOADS_OVERLAP,
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STAT_TCP_SEGMENTS_NOSPACE,
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STAT_TCP_PAYLOADS_NOSPACE,
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STAT_TCP_SEGMENTS_INORDER,
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STAT_TCP_PAYLOADS_INORDER,
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STAT_TCP_SEGMENTS_REORDERED,
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STAT_TCP_PAYLOADS_REORDERED,
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STAT_TCP_SEGMENTS_BUFFERED,
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STAT_TCP_PAYLOADS_BUFFERED,
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STAT_TCP_SEGMENTS_RELEASED,
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STAT_TCP_PAYLOADS_RELEASED,
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MAX_STAT,
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};
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// realtime in milliseconds
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enum session_timestamp
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{
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SESSION_TIMESTAMP_START,
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SESSION_TIMESTAMP_LAST,
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MAX_TIMESTAMP,
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};
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struct session;
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#define SESSION_SEEN_C2S_FLOW (1 << 0)
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#define SESSION_SEEN_S2C_FLOW (1 << 1)
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int session_is_symmetric(const struct session *sess, unsigned char *flag);
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int session_has_duplicate_traffic(const struct session *sess);
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enum session_type session_get_type(const struct session *sess);
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enum session_state session_get_current_state(const struct session *sess);
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const struct packet *session_get0_current_packet(const struct session *sess);
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enum closing_reason session_get_closing_reason(const struct session *sess);
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enum session_direction session_get_direction(const struct session *sess);
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enum flow_type session_get_flow_type(const struct session *sess);
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const struct packet *session_get_first_packet(const struct session *sess, enum flow_type type);
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uint64_t session_get_id(const struct session *sess);
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uint64_t session_get_timestamp(const struct session *sess, enum session_timestamp type);
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uint64_t session_get_stat(const struct session *sess, enum flow_type type, enum session_stat stat);
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const char *session_get0_readable_addr(const struct session *sess);
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void session_set_discard(struct session *sess);
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void session_set_exdata(struct session *sess, int idx, void *ex_ptr);
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void *session_get_exdata(const struct session *sess, int idx);
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#ifdef __cplusplus
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}
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#endif
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