refactor: session module (split to define/utils/pool/table/timer/transition/manager)

src/session/session_utils.h

@@ -0,0 +1,139 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <stdint.h>
+
+#include "stellar/session.h"
+
+/******************************************************************************
+ * session set/get
+ ******************************************************************************/
+
+void session_init(struct session *sess);
+
+// session ID
+void session_set_id(struct session *sess, uint64_t id);
+uint64_t session_get_id(const struct session *sess);
+
+// session tuple
+void session_set_tuple6(struct session *sess, const struct tuple6 *tuple);
+const struct tuple6 *session_get_tuple6(const struct session *sess);
+
+// session tuple direction
+void session_set_tuple_direction(struct session *sess, enum flow_direction dir);
+enum flow_direction session_get_tuple6_direction(const struct session *sess);
+const char *session_get0_readable_addr(const struct session *sess);
+
+// session direction
+void session_set_direction(struct session *sess, enum session_direction dir);
+enum session_direction session_get_direction(const struct session *sess);
+
+// session flow direction
+void session_set_current_flow_direction(struct session *sess, enum flow_direction dir);
+enum flow_direction session_get_current_flow_direction(const struct session *sess);
+
+// session state
+void session_set_current_state(struct session *sess, enum session_state state);
+enum session_state session_get_current_state(const struct session *sess);
+
+// session type
+void session_set_type(struct session *sess, enum session_type type);
+enum session_type session_get_type(const struct session *sess);
+
+// session seen duplicate traffic
+void session_set_duplicate_traffic(struct session *sess);
+int session_has_duplicate_traffic(const struct session *sess);
+
+// session closing reason
+void session_set_closing_reason(struct session *sess, enum closing_reason reason);
+enum closing_reason session_get_closing_reason(const struct session *sess);
+
+// session stat
+void session_inc_stat(struct session *sess, enum flow_direction dir, enum session_stat stat, uint64_t val);
+uint64_t session_get_stat(const struct session *sess, enum flow_direction dir, enum session_stat stat);
+
+// session timestamp
+void session_set_timestamp(struct session *sess, enum session_timestamp type, uint64_t value);
+uint64_t session_get_timestamp(const struct session *sess, enum session_timestamp type);
+
+// session sids
+void session_clear_sids(struct session *sess, enum flow_direction dir);
+void session_set_sids(struct session *sess, enum flow_direction dir, const struct sids *sids);
+const struct sids *session_get_sids(const struct session *sess, enum flow_direction dir);
+
+// session route ctx
+void session_clear_route_ctx(struct session *sess, enum flow_direction dir);
+void session_set_route_ctx(struct session *sess, enum flow_direction dir, const struct route_ctx *ctx);
+const struct route_ctx *session_get_route_ctx(const struct session *sess, enum flow_direction dir);
+
+// session first packet
+void session_set_first_packet(struct session *sess, enum flow_direction dir, const struct packet *pkt);
+const struct packet *session_get_first_packet(const struct session *sess, enum flow_direction dir);
+
+// session current packet
+void session_set_current_packet(struct session *sess, const struct packet *pkt);
+const struct packet *session_get0_current_packet(const struct session *sess);
+const char *session_get0_current_payload(const struct session *sess, uint16_t *payload_len);
+
+// session symmetric
+int session_is_symmetric(const struct session *sess, unsigned char *flag);
+
+// session user data
+void session_set_user_data(struct session *sess, void *user_data);
+void *session_get_user_data(const struct session *sess);
+
+// session tcp segment
+struct tcp_segment *session_get_tcp_segment(struct session *sess);
+void session_free_tcp_segment(struct session *sess, struct tcp_segment *seg);
+
+/******************************************************************************
+ * session ex data
+ ******************************************************************************/
+
+typedef void session_ex_free_cb(struct session *sess, uint8_t idx, void *ex_ptr, void *arg);
+
+/*
+ * the exdata prodoced by user, and comsumed by same user.
+ * so, the exdata is not shared by different user.
+ * otherwise, the exdata need dup by refer count, and free by refer count.
+ *
+ * if key exist, not allow update, return original index.
+ */
+uint8_t session_get_ex_new_index(const char *key, session_ex_free_cb *free_cb, void *args);
+
+/*
+ * Support update ex_data.
+ *
+ * if key exist: run free_cb free old value, then set new value.
+ *     if not run free_cb, old value will be memory leak.
+ *     if not allow update, new value will be memory leak.
+ * if key not exist: set new value.
+ */
+void session_set_ex_data(struct session *sess, uint8_t idx, void *val);
+void *session_get0_ex_data(const struct session *sess, uint8_t idx);
+/*
+ * after set ex_data, the owner of ex_data is session, so user should not free it directly.
+ * if user want to free ex_data, should use session_free_ex_data.
+ */
+void session_free_ex_data(struct session *sess, uint8_t idx);
+void session_free_all_ex_data(struct session *sess);
+
+/******************************************************************************
+ * to string
+ ******************************************************************************/
+
+const char *closing_reason_to_str(enum closing_reason reason);
+const char *session_state_to_str(enum session_state state);
+const char *session_type_to_str(enum session_type type);
+const char *flow_direction_to_str(enum flow_direction dir);
+
+int session_to_json(struct session *sess, char *buff, int size);
+void session_print(struct session *sess);
+
+#ifdef __cplusplus
+}
+#endif