【修改】更新依赖的stellar头文件

20 files changed, 897 insertions, 225 deletions

diff --git a/dependence/include/stellar/appid.h b/dependence/include/stellar/appid.h
new file mode 100644
index 0000000..6d82d71
--- /dev/null
+++ b/dependence/include/stellar/appid.h
@@ -0,0 +1,31 @@
+#pragma once
+
+#include <stddef.h>
+#include <stdint.h>
+
+#define MESSAGE_MAGIC 0x12345678
+
+#define	MAX_APP_ID_NUM	8
+#define	APP_ID_MESSAGE_TOPIC "TOPIC_APP_ID"
+
+enum APP_IDENTIFY_ORIGIN
+{
+	ORIGIN_PROTO_IDENTIFY=0,
+	ORIGIN_APP_SKETCH_USER_DEFINE,
+	ORIGIN_PROTO_ENGINE,
+	ORIGIN_APP_SKETCH_BUILT_IN,
+	ORIGIN_PROTO_DECODED,
+	ORIGIN_EXCEED_PACKET_LIMIT,
+	ORIGIN_TUNNEL,
+	ORIGIN_MAX
+};
+
+struct app_id_message
+{
+	int magic;
+	enum APP_IDENTIFY_ORIGIN origin;
+	uint32_t app_id_num;
+	int32_t app_id[MAX_APP_ID_NUM];
+	uint32_t surrogate_id[MAX_APP_ID_NUM];
+	uint32_t packet_sequence[MAX_APP_ID_NUM];
+};
\ No newline at end of file
diff --git a/dependence/include/stellar/exdata.h b/dependence/include/stellar/exdata.h
new file mode 100644
index 0000000..84f8029
--- /dev/null
+++ b/dependence/include/stellar/exdata.h
@@ -0,0 +1,31 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+typedef void exdata_free(int idx, void *ex_ptr, void *arg);
+
+struct exdata_schema;
+
+struct exdata_schema *exdata_schema_new();
+void exdata_schema_free(struct exdata_schema *schemas);
+
+int exdata_schema_new_index(struct exdata_schema *schema, const char *name, exdata_free *free_func,void *free_arg);
+
+int exdata_schema_get_idx_by_name(struct exdata_schema *schema, const char *name);
+
+struct exdata_runtime;
+
+struct exdata_runtime *exdata_runtime_new(struct exdata_schema *schemas);
+void exdata_runtime_free(struct exdata_runtime *rt);
+void exdata_runtime_reset(struct exdata_runtime *rt);//call free_func, and set ex_ptr to NULL
+
+int exdata_set(struct exdata_runtime *rt, int idx, void *ex_ptr);
+void *exdata_get(struct exdata_runtime *rt, int idx);
+
+
+#ifdef __cplusplus
+}
+#endif
\ No newline at end of file
diff --git a/dependence/include/stellar/http.h b/dependence/include/stellar/http.h
new file mode 100644
index 0000000..1cc5bec
--- /dev/null
+++ b/dependence/include/stellar/http.h
@@ -0,0 +1,113 @@
+#pragma once
+#include <stddef.h>
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#define HTTP_TOPIC "HTTP_MESSAGE"
+    struct http_message;
+
+    enum http_message_type
+    {
+        HTTP_TRANSACTION_START,
+
+        HTTP_MESSAGE_REQ_LINE,
+        HTTP_MESSAGE_REQ_HEADER,
+        HTTP_MESSAGE_REQ_HEADER_END, // todo, delete END, push all fileds at once
+        HTTP_MESSAGE_REQ_BODY_START,
+        HTTP_MESSAGE_REQ_BODY,
+        HTTP_MESSAGE_REQ_BODY_END,
+
+        HTTP_MESSAGE_RES_LINE,
+        HTTP_MESSAGE_RES_HEADER,
+        HTTP_MESSAGE_RES_HEADER_END, // todo, delete END, push all fileds at once
+        HTTP_MESSAGE_RES_BODY_START,
+        HTTP_MESSAGE_RES_BODY,
+        HTTP_MESSAGE_RES_BODY_END,
+
+        HTTP_TRANSACTION_END,
+
+        HTTP_MESSAGE_MAX
+    };
+
+    struct http_header_field
+    {
+        char *name;
+        size_t name_len;
+        char *value;
+        size_t value_len;
+    };
+
+    struct http_request_line
+    {
+        char *method;
+        size_t method_len;
+        char *uri;
+        size_t uri_len;
+        char *version;
+        size_t version_len;
+
+        int major_version;
+        int minor_version;
+    };
+
+    struct http_response_line
+    {
+        char *version;
+        size_t version_len;
+        char *status;
+        size_t status_len;
+        int major_version;
+        int minor_version;
+        int status_code;
+    };
+
+    enum http_message_type http_message_get_type(const struct http_message *msg);
+
+    void http_message_get0_request_line(const struct http_message *msg, struct http_request_line *line);
+
+    void http_message_get0_response_line(const struct http_message *msg, struct http_response_line *line);
+
+    /*
+     *  Pay attention: key->iov_base is case-insensitive.
+     */
+    void http_message_get0_header(const struct http_message *msg, const char *name, size_t name_len, struct http_header_field *field_result);
+
+    /**
+     * @brief loop reading all headers.
+     *
+     * @retval succeed( >= 0) failed(-1)
+     */
+    int http_message_get0_next_header(const struct http_message *msg, struct http_header_field *header);
+
+    /**
+     * @retval succeed( >= 0) failed(-1)
+     */
+    int http_message_reset_header_iter(struct http_message *msg); // to do , obsoleted
+
+    void http_message_get0_uncompressed_body(const struct http_message *msg, const char **body, size_t *body_len);
+
+    /**
+     * @brief If the body hasn't been compressed, same as http_message_get0_uncompressed_body().
+     *
+     */
+    void http_message_get0_decompressed_body(const struct http_message *msg, const char **body, size_t *body_len);
+
+    void http_message_get0_raw_url(const struct http_message *msg, const char **url, size_t *url_len);
+
+    /*
+        return value:
+        0: failed
+        >1: success, length of decoded_url_buffer, not C string( no EOF with '\0' )
+    */
+    size_t http_url_decode(const char *raw_url, size_t raw_url_len, char *decoded_url_buffer, size_t decoded_url_buffer_len);
+
+    /**
+     * @retval succeed( >= 0) failed(-1)
+     */
+    int http_message_get_transaction_seq(const struct http_message *msg);
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/dependence/include/stellar/log.h b/dependence/include/stellar/log.h
new file mode 100644
index 0000000..a075267
--- /dev/null
+++ b/dependence/include/stellar/log.h
@@ -0,0 +1,60 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+enum log_level
+{
+    LOG_TRACE,
+    LOG_DEBUG,
+    LOG_INFO,
+    LOG_WARN,
+    LOG_ERROR,
+    LOG_FATAL,
+};
+
+#define STELLAR_LOG_TRACE(logger, module, format, ...)                     \
+    if (log_check_level((logger), LOG_TRACE))                              \
+    {                                                                      \
+        log_print((logger), LOG_TRACE, (module), (format), ##__VA_ARGS__); \
+    }
+
+#define STELLAR_LOG_DEBUG(logger, module, format, ...)                     \
+    if (log_check_level((logger), LOG_DEBUG))                              \
+    {                                                                      \
+        log_print((logger), LOG_DEBUG, (module), (format), ##__VA_ARGS__); \
+    }
+
+#define STELLAR_LOG_INFO(logger, module, format, ...)                     \
+    if (log_check_level((logger), LOG_INFO))                              \
+    {                                                                     \
+        log_print((logger), LOG_INFO, (module), (format), ##__VA_ARGS__); \
+    }
+
+#define STELLAR_LOG_WARN(logger, module, format, ...)                     \
+    if (log_check_level((logger), LOG_WARN))                              \
+    {                                                                     \
+        log_print((logger), LOG_WARN, (module), (format), ##__VA_ARGS__); \
+    }
+
+#define STELLAR_LOG_ERROR(logger, module, format, ...)                     \
+    if (log_check_level((logger), LOG_ERROR))                              \
+    {                                                                      \
+        log_print((logger), LOG_ERROR, (module), (format), ##__VA_ARGS__); \
+    }
+
+#define STELLAR_LOG_FATAL(logger, module, format, ...)                     \
+    if (log_check_level((logger), LOG_FATAL))                              \
+    {                                                                      \
+        log_print((logger), LOG_FATAL, (module), (format), ##__VA_ARGS__); \
+    }
+
+struct logger;
+int log_check_level(struct logger *logger, enum log_level level);
+void log_print(struct logger *logger, enum log_level level, const char *module, const char *fmt, ...);
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/dependence/include/stellar/module_manager.h b/dependence/include/stellar/module_manager.h
new file mode 100644
index 0000000..a944186
--- /dev/null
+++ b/dependence/include/stellar/module_manager.h
@@ -0,0 +1,49 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include "stellar/mq.h"
+#include "stellar/log.h"
+
+#define PACKET_MANAGER_MODULE_NAME "packet_manager_module"
+#define SESSION_MANAGER_MODULE_NAME "session_manager_module"
+
+struct stellar_module;
+struct stellar_module *stellar_module_new(const char *name, void *ctx);
+void stellar_module_free(struct stellar_module *mod);
+
+void * stellar_module_get_ctx(struct stellar_module *mod);
+void stellar_module_set_ctx(struct stellar_module *mod, void *ctx);
+
+const char *stellar_module_get_name(struct stellar_module* mod);
+void stellar_module_set_name(struct stellar_module* mod, const char *name);
+
+struct stellar_module_manager;
+
+typedef struct stellar_module *module_on_init_func(struct stellar_module_manager *mod_mgr);
+typedef void module_on_exit_func(struct stellar_module_manager *mod_mgr, struct stellar_module *mod);
+
+struct stellar_module_manager *stellar_module_manager_new(const char *module_spec_toml_path, int max_thread_num, struct mq_schema *mq_schema, struct logger *logger);
+void stellar_module_manager_free(struct stellar_module_manager *mod_mgr);
+
+void stellar_module_manager_register_thread(struct stellar_module_manager* mod_mgr, int thread_id, struct mq_runtime *mq_rt);
+
+// return -1 on error
+int stellar_module_manager_get_thread_id(struct stellar_module_manager* mod_mgr);
+struct mq_runtime *stellar_module_manager_get_mq_runtime(struct stellar_module_manager *mod_mgr);
+
+struct stellar_module *stellar_module_manager_get_module(struct stellar_module_manager *mod_mgr, const char *module_name); 
+
+int stellar_module_manager_get_max_thread_num(struct stellar_module_manager* mod_mgr);
+const char *stellar_module_manager_get_toml_path(struct stellar_module_manager *mod_mgr);
+struct mq_schema *stellar_module_manager_get_mq_schema(struct stellar_module_manager *mod_mgr);
+struct logger *stellar_module_manager_get_logger(struct stellar_module_manager *mod_mgr);
+
+
+
+#ifdef __cplusplus
+}
+#endif
\ No newline at end of file
diff --git a/dependence/include/stellar/mq.h b/dependence/include/stellar/mq.h
new file mode 100644
index 0000000..aa7b416
--- /dev/null
+++ b/dependence/include/stellar/mq.h
@@ -0,0 +1,54 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+struct mq_schema;
+struct mq_schema *mq_schema_new();
+void mq_schema_free(struct mq_schema *s);
+
+typedef void mq_msg_free_cb_func(void *msg, void *msg_free_arg);
+typedef void on_msg_cb_func(int topic_id, void *msg, void *on_msg_arg);
+typedef void on_msg_dispatch_cb_func(int topic_id, 
+									 void *msg, 
+									 on_msg_cb_func* on_msg_cb, 
+									 void *on_msg_cb_arg, 
+									 void *dispatch_arg);
+
+//return topic_id
+int mq_schema_create_topic(struct mq_schema *s, 
+						   const char *topic_name, 
+						   on_msg_dispatch_cb_func *on_dispatch_cb, 
+						   void *on_dispatch_arg, 
+						   mq_msg_free_cb_func *msg_free_cb, 
+						   void *msg_free_arg);
+
+int mq_schema_get_topic_id(struct mq_schema *s, const char *topic_name);
+
+int mq_schema_update_topic(struct mq_schema *s, 
+						   int topic_id, 
+						   on_msg_dispatch_cb_func *on_dispatch_cb, 
+						   void *on_dispatch_arg, 
+						   mq_msg_free_cb_func *msg_free_cb, 
+						   void *msg_free_arg);
+
+int mq_schema_destroy_topic(struct mq_schema *s, int topic_id);
+
+//return 0 if success, otherwise return -1.
+int mq_schema_subscribe(struct mq_schema *s, int topic_id, on_msg_cb_func *on_msg_cb, void * on_msg_cb_arg); 
+
+
+struct mq_runtime;
+struct mq_runtime *mq_runtime_new(struct mq_schema *s);
+void mq_runtime_free(struct mq_runtime *s);
+
+// return 0 if success, otherwise return -1
+int mq_runtime_publish_message(struct mq_runtime *rt, int topic_id, void *msg);// append message to pending queue
+void mq_runtime_dispatch(struct mq_runtime *rt);// dispatch all message in pending queue, dispatched message will be append to dlq
+void mq_runtime_clean(struct mq_runtime *rt); // free all message in dlq and pending queue, during this period, publish will be disabled
+
+#ifdef __cplusplus
+}
+#endif
\ No newline at end of file
diff --git a/dependence/include/stellar/packet.h b/dependence/include/stellar/packet.h
new file mode 100644
index 0000000..e910237
--- /dev/null
+++ b/dependence/include/stellar/packet.h
@@ -0,0 +1,193 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <stdint.h>
+#define __FAVOR_BSD 1
+#include <netinet/tcp.h>
+#include <netinet/udp.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/icmp6.h>
+#include <netinet/ip_icmp.h>
+#include <linux/if_ether.h>
+#include <linux/mpls.h>
+
+struct packet;
+/******************************************************************************
+ * layer
+ ******************************************************************************/
+
+enum layer_proto
+{
+    LAYER_PROTO_NONE = 0,
+
+    // L2 -- data link layer
+    LAYER_PROTO_ETHER = 1,
+    LAYER_PROTO_PWETH = 2,
+    LAYER_PROTO_PPP = 3,
+    LAYER_PROTO_L2TP = 4,
+
+    // L2 -- tunnel
+    LAYER_PROTO_VLAN = 21,
+    LAYER_PROTO_PPPOE = 22,
+    LAYER_PROTO_MPLS = 23,
+
+    // L3 -- network layer
+    LAYER_PROTO_IPV4 = 31,
+    LAYER_PROTO_IPV6 = 32,
+    LAYER_PROTO_IPAH = 33,
+
+    // L3 -- tunnel
+    LAYER_PROTO_GRE = 41,
+
+    // L4 -- transport layer
+    LAYER_PROTO_UDP = 51,
+    LAYER_PROTO_TCP = 52,
+    LAYER_PROTO_ICMP = 53,
+    LAYER_PROTO_ICMP6 = 54,
+
+    // L4 -- tunnel
+    LAYER_PROTO_VXLAN = 61,
+    LAYER_PROTO_GTP_U = 62,
+    LAYER_PROTO_GTP_C = 63,
+};
+
+struct layer
+{
+    enum layer_proto proto;
+    uint16_t hdr_len;
+    union
+    {
+        // all hdr ptr refer to raw packet, read-only
+        const struct ethhdr *eth;
+        const struct ip *ip4;
+        const struct ip6_hdr *ip6;
+        const struct tcphdr *tcp;
+        const struct udphdr *udp;
+        const struct icmphdr *icmp4;
+        const struct icmp6_hdr *icmp6;
+        const struct mpls_label *mpls;
+        const char *raw; // e.g. pppoe, l2tp, gre, gtp, etc.
+    } hdr;
+};
+
+int packet_get_layer_count(const struct packet *pkt);
+const struct layer *packet_get_layer_by_idx(const struct packet *pkt, int idx);
+
+//  // example: foreach layer in packet (inorder)
+//  int count = packet_get_layer_count(pkt);
+//  for (int i = 0; i < count; i++)
+//  {
+//      const struct layer *layer = packet_get_layer_by_idx(pkt, i);
+//      // do something with layer
+//  }
+//
+//
+//  // example: foreach layer in packet (reverse)
+//  int count = packet_get_layer_count(pkt);
+//  for (int i = count - 1; i >= 0; i--)
+//  {
+//      const struct layer *layer = packet_get_layer_by_idx(pkt, i);
+//      // do something with layer
+//  }
+
+/******************************************************************************
+ * tunnel
+ ******************************************************************************/
+
+enum tunnel_type
+{
+    TUNNEL_IPV4 = 1, // contain layers: IPv4, (next inner layer must be IPv4 / IPv6)
+    TUNNEL_IPV6 = 2, // contain layers: IPv6, (next inner layer must be IPv4 / IPv6)
+
+    TUNNEL_GRE = 3, // contain layers: IPv4 + GRE
+                    // contain layers: IPv6 + GRE
+
+    TUNNEL_GTP = 4, // contain layers: IPv4 + UDP + GTP
+                    // contain layers: IPv6 + UDP + GTP
+
+    TUNNEL_VXLAN = 5, // contain layers: IPv4 + UDP + VXLAN
+                      // contain layers: IPv6 + UDP + VXLAN
+
+    TUNNEL_L2TP = 6, // contain layers: IPv4 + UDP + L2TP
+                     // contain layers: IPv6 + UDP + L2TP
+
+    TUNNEL_TEREDO = 7, // contain layers: IPv4 + UDP, (next inner layer must be IPv6)
+};
+
+#define MAX_LAYERS_PER_TUNNEL 3
+struct tunnel
+{
+    enum tunnel_type type;
+
+    int layer_count;
+    const struct layer *layers[MAX_LAYERS_PER_TUNNEL];
+};
+
+int packet_get_tunnel_count(const struct packet *pkt);
+// return  0: success 
+// return -1: failed
+int packet_get_tunnel_by_idx(const struct packet *pkt, int idx, struct tunnel *out);
+
+/******************************************************************************
+ * build
+ ******************************************************************************/
+
+/*
+ * tcp_seq: the sequence number of the new TCP packet (in host byte order)
+ * tcp_ack: the acknowledgment number of the new TCP packet (in host byte order)
+ * tcp_options_len: the length of the options (must be a multiple of 4)
+ */
+struct packet *packet_build_tcp(const struct packet *origin_pkt, uint32_t tcp_seq, uint32_t tcp_ack, uint8_t tcp_flags,
+                                const char *tcp_options, uint16_t tcp_options_len,
+                                const char *tcp_payload, uint16_t tcp_payload_len);
+struct packet *packet_build_udp(const struct packet *origin_pkt, const char *udp_payload, uint16_t udp_payload_len);
+struct packet *packet_build_l3(const struct packet *origin_pkt, uint8_t ip_proto, const char *l3_payload, uint16_t l3_payload_len);
+
+/******************************************************************************
+ * utils
+ ******************************************************************************/
+
+#define MAX_SIDS 8
+struct sids
+{
+    uint16_t sid[MAX_SIDS];
+    int used;
+};
+void packet_prepend_sids(struct packet *pkt, const struct sids *sids);
+
+enum packet_direction
+{
+    PACKET_DIRECTION_OUTGOING = 0, // Internal -> External: 0
+    PACKET_DIRECTION_INCOMING = 1, // External -> Internal: 1
+};
+enum packet_direction packet_get_direction(const struct packet *pkt);
+
+enum packet_action
+{
+    PACKET_ACTION_FORWARD = 0,
+    PACKET_ACTION_DROP = 1,
+};
+
+void packet_set_action(struct packet *pkt, enum packet_action action);
+enum packet_action packet_get_action(const struct packet *pkt);
+
+void packet_set_timeval(struct packet *pkt, const struct timeval *tv);
+const struct timeval *packet_get_timeval(const struct packet *pkt);
+
+const char *packet_get_raw_data(const struct packet *pkt);
+uint16_t packet_get_raw_len(const struct packet *pkt);
+
+const char *packet_get_payload(const struct packet *pkt);
+uint16_t packet_get_payload_len(const struct packet *pkt);
+
+void packet_set_exdata(struct packet *pkt, int idx, void *ex_ptr);
+void *packet_get_exdata(struct packet *pkt, int idx);
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/dependence/include/stellar/packet_exdata.h b/dependence/include/stellar/packet_exdata.h
deleted file mode 100644
index 7620eae..0000000
--- a/dependence/include/stellar/packet_exdata.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#pragma once
-
-#include "stellar.h"
-
-typedef void packet_exdata_free(struct packet *pkt, int idx, void *ex_ptr, void *arg);
-int stellar_packet_exdata_new_index(struct stellar *st, const char *name, packet_exdata_free *free_func,void *arg); 
-int packet_exdata_set(struct packet *pkt, int idx, void *ex_ptr);
-void *packet_exdata_get(struct packet *pkt, int idx);
\ No newline at end of file
diff --git a/dependence/include/stellar/packet_manager.h b/dependence/include/stellar/packet_manager.h
new file mode 100644
index 0000000..8270c7b
--- /dev/null
+++ b/dependence/include/stellar/packet_manager.h
@@ -0,0 +1,37 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include "stellar/exdata.h"
+#include "stellar/packet.h"
+
+enum packet_stage
+{
+    PACKET_STAGE_PREROUTING,
+    PACKET_STAGE_INPUT,
+    PACKET_STAGE_FORWARD,
+    PACKET_STAGE_OUTPUT,
+    PACKET_STAGE_POSTROUTING,
+    PACKET_STAGE_MAX,
+};
+
+struct packet_manager;
+
+int packet_manager_new_packet_exdata_index(struct packet_manager *pkt_mgr, const char *name, exdata_free *func, void *arg);
+
+typedef void on_packet_stage_callback(enum packet_stage stage, struct packet *pkt, void *args);
+int packet_manager_subscribe(struct packet_manager *pkt_mgr, enum packet_stage stage, on_packet_stage_callback *cb, void *args);
+
+// if two modules claim the same packet at the same stage, the second 'claim' fails.
+// return  0 on success
+// return -1 on failure
+typedef void on_packet_claimed_callback(struct packet *pkt, void *args);
+int packet_manager_claim_packet(struct packet_manager *pkt_mgr, uint16_t thread_id, struct packet *pkt, on_packet_claimed_callback cb, void *args);
+void packet_manager_schedule_packet(struct packet_manager *pkt_mgr, uint16_t thread_id, struct packet *pkt, enum packet_stage stage);
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/dependence/include/stellar/packet_mq.h b/dependence/include/stellar/packet_mq.h
deleted file mode 100644
index 94bb39b..0000000
--- a/dependence/include/stellar/packet_mq.h
+++ /dev/null
@@ -1,22 +0,0 @@
-#pragma once
-
-#include "stellar.h"
-
-//session mq
-typedef void packet_msg_free_cb_func(struct packet *pkt, void *msg, void *msg_free_arg);
-typedef void on_packet_msg_cb_func(struct packet *pkt, int topic_id, const void *msg, void *plugin_env);
-
-//return topic_id
-int stellar_packet_mq_create_topic(struct stellar *st, const char *topic_name, packet_msg_free_cb_func *msg_free_cb, void *msg_free_arg);
-
-int stellar_packet_mq_get_topic_id(struct stellar *st, const char *topic_name);
-
-int stellar_packet_mq_update_topic(struct stellar *st, int topic_id, packet_msg_free_cb_func *msg_free_cb, void *msg_free_arg);
-
-int stellar_packet_mq_destroy_topic(struct stellar *st, int topic_id);
-
-//return 0 if success, otherwise return -1.
-int stellar_packet_mq_subscribe(struct stellar *st, int topic_id, on_packet_msg_cb_func *plugin_on_msg_cb, int plugin_id); //packet plugin only
-
-int packet_mq_publish_message(struct packet *pkt, int topic_id, void *msg);
-
diff --git a/dependence/include/stellar/polling_manager.h b/dependence/include/stellar/polling_manager.h
new file mode 100644
index 0000000..641c03e
--- /dev/null
+++ b/dependence/include/stellar/polling_manager.h
@@ -0,0 +1,21 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include "stellar/module_manager.h"
+
+struct stellar_polling_manager;
+
+struct stellar_polling_manager *stellar_module_get_polling_manager(struct stellar_module_manager *mod_mgr);
+
+typedef void module_on_polling_func(struct stellar_polling_manager* mod_mgr, void *polling_arg);
+//return 0 if success, otherwise return -1.
+int stellar_polling_subscribe(struct stellar_polling_manager* mod_mgr,  module_on_polling_func on_polling, void *polling_arg);
+void stellar_polling_active(struct stellar_polling_manager *mod_mgr);
+
+#ifdef __cplusplus
+}
+#endif
\ No newline at end of file
diff --git a/dependence/include/stellar/session.h b/dependence/include/stellar/session.h
index 3f4f4d3..67c8c98 100644
--- a/dependence/include/stellar/session.h
+++ b/dependence/include/stellar/session.h
@@ -1,134 +1,151 @@
 #pragma once
 
-#include "stellar.h"
+#ifdef __cplusplus
+extern "C"
+{
+#endif
 
-#include <stdint.h>
-#include <stddef.h>
+#include "stellar/packet.h"
 
-enum session_type
+enum session_state
 {
-	SESSION_TYPE_TCP,
-	SESSION_TYPE_UDP,
-	__SESSION_TYPE_MAX,
+    SESSION_STATE_INIT = 0,
+    SESSION_STATE_OPENING = 1,
+    SESSION_STATE_ACTIVE = 2,
+    SESSION_STATE_CLOSING = 3,
+    SESSION_STATE_DISCARD = 4,
+    SESSION_STATE_CLOSED = 5,
+    MAX_STATE = 6,
 };
 
-enum session_state
+enum session_type
 {
-	SESSION_STATE_INVALID = 0,
-	SESSION_STATE_OPENING = 1 ,
-	SESSION_STATE_ACTIVE = 2,
-	SESSION_STATE_CLOSING = 3,
-	SESSION_STATE_CONTROL = 6,
-	__SESSION_STATE_MAX,
+    SESSION_TYPE_TCP = 0x1,
+    SESSION_TYPE_UDP = 0x2,
 };
 
-enum session_type session_get_type(struct session *sess);
-
-#define SESSION_SEEN_C2S_FLOW (1 << 0)
-#define SESSION_SEEN_S2C_FLOW (1 << 1)
-int session_is_symmetric(struct session *sess, unsigned char *flag);
-
-long long session_get_client_isn(struct session *sess);
-long long session_get_server_isn(struct session *sess);
-
-#define SESSION_IS_TUNNLE_NON 	 (0) 	/* default is 0, not tunnel; */
-#define	SESSION_IS_TUNNLE_6OVER4 	 (1 << 0)
-#define	SESSION_IS_TUNNLE_4OVER6	 (1 << 1)
-#define	SESSION_IS_TUNNLE_GRE		 (1 << 2)
-#define	SESSION_IS_TUNNLE_IP_IN_IP	 (1 << 3)
-#define	SESSION_IS_TUNNLE_PPTP		 (1 << 4)
-#define	SESSION_IS_TUNNLE_L2TP		 (1 << 5)
-#define	SESSION_IS_TUNNLE_TEREDO	 (1 << 6)
-#define	SESSION_IS_TUNNLE_GTP (1 << 7)
-#define	SESSION_IS_TUNNLE_SOCKS (1 << 8)
-#define	SESSION_IS_TUNNLE_HTTP_PROXY (1 << 9)
-
-int session_is_outmost(struct session *sess, uint64_t *flag);
-int session_is_innermost(struct session *sess, uint64_t *flag);
-
-#define SESSION_DIRECTION_IN 0
-#define SESSION_DIRECTION_OUT 1
-int  session_get_direction(struct session *sess);       	
-
-enum session_addr_type
+enum session_direction
 {
-	SESSION_ADDR_TYPE_IPV4_TCP,
-	SESSION_ADDR_TYPE_IPV4_UDP,
-	SESSION_ADDR_TYPE_IPV6_TCP,
-	SESSION_ADDR_TYPE_IPV6_UDP,
-	SESSION_ADDR_TYPE_UNKNOWN,
-	__SESSION_ADDR_TYPE_MAX,
-};
-struct session_addr_ipv4{
-	uint32_t saddr;	/* network order */
-	uint32_t daddr;	/* network order */
-	uint16_t sport;	/* network order */
-	uint16_t dport;	/* network order */
+    SESSION_DIRECTION_INBOUND = 0,
+    SESSION_DIRECTION_OUTBOUND = 1,
 };
 
-#include <netinet/in.h>
-#ifndef IPV6_ADDR_LEN
-#define IPV6_ADDR_LEN	(sizeof(struct in6_addr))
-#endif
-struct session_addr_ipv6
+enum flow_type
 {
-	uint8_t saddr[IPV6_ADDR_LEN] ;
-	uint8_t daddr[IPV6_ADDR_LEN] ;
-	uint16_t sport;	/* network order */
-	uint16_t dport;	/* network order */
+    FLOW_TYPE_NONE = -1,
+    FLOW_TYPE_C2S = 0,
+    FLOW_TYPE_S2C = 1,
+    MAX_FLOW_TYPE = 2,
 };
 
-struct session_addr
+enum closing_reason
 {
-	union
-	{
-		struct session_addr_ipv4 ipv4;
-		struct session_addr_ipv6 ipv6;
-	};
+    CLOSING_BY_TIMEOUT = 0x1,
+    CLOSING_BY_LRU_EVICTED = 0x2,
+    CLOSING_BY_PORT_REUSE_EVICTED = 0x3,
+    CLOSING_BY_CLIENT_FIN = 0x4,
+    CLOSING_BY_CLIENT_RST = 0x5,
+    CLOSING_BY_SERVER_FIN = 0x6,
+    CLOSING_BY_SERVER_RST = 0x7,
 };
 
-struct session_addr *session_get0_addr(struct session *sess, enum session_addr_type *addr_type);
+enum session_stat
+{
+    // raw packet
+    STAT_RAW_PACKETS_RECEIVED,
+    STAT_RAW_BYTES_RECEIVED,
+
+    STAT_RAW_PACKETS_TRANSMITTED,
+    STAT_RAW_BYTES_TRANSMITTED,
+
+    STAT_RAW_PACKETS_DROPPED,
+    STAT_RAW_BYTES_DROPPED,
+
+    // duplicate packets
+    STAT_DUPLICATE_PACKETS_BYPASS,
+    STAT_DUPLICATE_BYTES_BYPASS,
+
+    // injected packet
+    STAT_INJECTED_PACKETS_FAILED,
+    STAT_INJECTED_PACKETS_SUCCESS,
+    STAT_INJECTED_BYTES_SUCCESS,
 
-const char *session_get0_readable_addr(struct session *sess);
-const char *session_get0_current_payload(struct session *sess, size_t *payload_len);
-enum session_state session_get_current_state(struct session *sess);
+    // control packet
+    STAT_CONTROL_PACKETS_RECEIVED, // TODO
+    STAT_CONTROL_BYTES_RECEIVED,   // TODO
 
-int session_get_current_thread_id(struct session *sess);
-int session_get_current_plugin_id(struct session *sess);
+    STAT_CONTROL_PACKETS_TRANSMITTED,
+    STAT_CONTROL_BYTES_TRANSMITTED,
 
-/* ------------session------------------*/
-/*  |l2|l3|l4|session payload|  */
-const char *session_get0_current_l3_header(struct session *sess);
-const char *session_get0_current_l4_header(struct session *sess);
+    STAT_CONTROL_PACKETS_DROPPED,
+    STAT_CONTROL_BYTES_DROPPED,
 
-const char *session_get0_l2_l3_hdr(struct session *sess, int session_direction, size_t *l2_l3_hdr_len);
+    // TCP segment
+    STAT_TCP_SEGMENTS_RECEIVED,
+    STAT_TCP_PAYLOADS_RECEIVED,
 
-uint16_t *session_get0_segment_id_list(struct session *sess, int session_direction, size_t *sid_num);
-const char *session_get0_route_ctx(struct session *sess, int session_direction, size_t *route_ctx_len);
+    STAT_TCP_SEGMENTS_EXPIRED,
+    STAT_TCP_PAYLOADS_EXPIRED,
 
-int session_set_session_id(struct session *sess, uint64_t session_id);
-int session_set_preappend_segment_id_list(struct session *sess, uint16_t *sid, size_t sid_num);
+    STAT_TCP_SEGMENTS_RETRANSMIT,
+    STAT_TCP_PAYLOADS_RETRANSMIT,
 
-const struct packet *session_get0_current_packet(struct session *sess);
+    STAT_TCP_SEGMENTS_OVERLAP,
+    STAT_TCP_PAYLOADS_OVERLAP,
 
+    STAT_TCP_SEGMENTS_NOSPACE,
+    STAT_TCP_PAYLOADS_NOSPACE,
 
-//flow direction
-#define PACKET_DIRECTION_C2S 0
-#define PACKET_DIRECTION_S2C 1
-#define PACKET_DIRECTION_UNKNOWN 2
-int packet_get_direction(const struct packet *pkt);
+    STAT_TCP_SEGMENTS_INORDER,
+    STAT_TCP_PAYLOADS_INORDER,
 
-//route direction
-#define PACKET_DIRECTION_INCOMING 0
-#define PACKET_DIRECTION_OUTGOING 1
-int packet_get_route_direction(const struct packet *pkt);
+    STAT_TCP_SEGMENTS_REORDERED,
+    STAT_TCP_PAYLOADS_REORDERED,
 
-const char *packet_get0_data(const struct packet *pkt, size_t *data_len);
-int packet_arrive_time(const struct packet *pkt, struct timeval *ts);
-unsigned char packet_get_ip_protocol(struct packet *pkt);
+    STAT_TCP_SEGMENTS_BUFFERED,
+    STAT_TCP_PAYLOADS_BUFFERED,
 
-void packet_drop(const struct packet *pkt);
-const char *packet_get0_readable_addr(struct packet *pkt);
-int packet_get_current_thread_id(struct packet *pkt);
+    STAT_TCP_SEGMENTS_RELEASED,
+    STAT_TCP_PAYLOADS_RELEASED,
 
-struct session *packet_get_session(const struct packet *pkt);
\ No newline at end of file
+    MAX_STAT,
+};
+
+// realtime in milliseconds
+enum session_timestamp
+{
+    SESSION_TIMESTAMP_START,
+    SESSION_TIMESTAMP_LAST,
+    MAX_TIMESTAMP,
+};
+
+struct session;
+
+#define SESSION_SEEN_C2S_FLOW (1 << 0)
+#define SESSION_SEEN_S2C_FLOW (1 << 1)
+int session_is_symmetric(const struct session *sess, unsigned char *flag);
+
+int session_has_duplicate_traffic(const struct session *sess);
+enum session_type session_get_type(const struct session *sess);
+
+enum session_state session_get_current_state(const struct session *sess);
+const struct packet *session_get0_current_packet(const struct session *sess);
+
+enum closing_reason session_get_closing_reason(const struct session *sess);
+enum session_direction session_get_direction(const struct session *sess);
+enum flow_type session_get_flow_type(const struct session *sess);
+const struct packet *session_get_first_packet(const struct session *sess, enum flow_type type);
+uint64_t session_get_id(const struct session *sess);
+uint64_t session_get_timestamp(const struct session *sess, enum session_timestamp type);
+uint64_t session_get_stat(const struct session *sess, enum flow_type type, enum session_stat stat);
+
+const char *session_get0_readable_addr(const struct session *sess);
+
+void session_set_discard(struct session *sess);
+
+void session_set_exdata(struct session *sess, int idx, void *ex_ptr);
+void *session_get_exdata(const struct session *sess, int idx);
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/dependence/include/stellar/session_exdata.h b/dependence/include/stellar/session_exdata.h
deleted file mode 100644
index 6f97c94..0000000
--- a/dependence/include/stellar/session_exdata.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#pragma once
-
-#include "stellar.h"
-
-typedef void session_exdata_free(struct session *sess, int idx, void *ex_ptr, void *arg);
-int stellar_session_exdata_new_index(struct stellar *st, const char *name, session_exdata_free *free_func,void *arg); 
-int session_exdata_set(struct session *sess, int idx, void *ex_ptr);
-void *session_exdata_get(struct session *sess, int idx);
\ No newline at end of file
diff --git a/dependence/include/stellar/session_flags.h b/dependence/include/stellar/session_flags.h
new file mode 100644
index 0000000..2aeace8
--- /dev/null
+++ b/dependence/include/stellar/session_flags.h
@@ -0,0 +1,55 @@
+#pragma once
+
+#include <stddef.h>
+#include <stdint.h>
+
+#define MESSAGE_MAGIC 0x12345678
+
+#define SESSION_FLAGS_MESSAGE_TOPIC "TOPIC_SESSION_FLAGS"
+
+enum
+{
+	session_flags_bulky_mask = 1,
+	session_flags_cbr_mask,
+	session_flags_local_client_mask,
+	session_flags_local_server_mask,
+	session_flags_download_mask,
+	session_flags_interactive_mask,
+	session_flags_inbound_mask,
+	session_flags_outbound_mask,
+	session_flags_pseudo_unidirectional_mask,
+	session_flags_streaming_mask,
+	session_flags_unidirectional_mask,
+	session_flags_random_looking_mask,
+	session_flags_c2s_mask,
+	session_flags_s2c_mask,
+	session_flags_bidirectional_mask,
+	session_flags_tunneling_mask,
+	session_flags_all_mask
+};
+
+#define SESSION_FLAGS_START 		(0x0000000000000001)
+#define SESSION_FLAGS_BULKY 		(SESSION_FLAGS_START << session_flags_bulky_mask)
+#define SESSION_FLAGS_CBR 			(SESSION_FLAGS_START << session_flags_cbr_mask)
+#define SESSION_FLAGS_LOCAL_CLIENT 		(SESSION_FLAGS_START << session_flags_local_client_mask)
+#define SESSION_FLAGS_LOCAL_SERVER 		(SESSION_FLAGS_START << session_flags_local_server_mask)
+#define SESSION_FLAGS_DOWNLOAD 		(SESSION_FLAGS_START << session_flags_download_mask)
+#define SESSION_FLAGS_INTERACTIVE 		(SESSION_FLAGS_START << session_flags_interactive_mask)
+#define SESSION_FLAGS_INBOUND 			(SESSION_FLAGS_START << session_flags_inbound_mask)
+#define SESSION_FLAGS_OUTBOUND 		(SESSION_FLAGS_START << session_flags_outbound_mask)
+#define SESSION_FLAGS_PSEUDO_UNIDIRECTIONAL 	(SESSION_FLAGS_START << session_flags_pseudo_unidirectional_mask)
+#define SESSION_FLAGS_STREAMING 		(SESSION_FLAGS_START << session_flags_streaming_mask)
+#define SESSION_FLAGS_UNIDIRECTIONAL 		(SESSION_FLAGS_START << session_flags_unidirectional_mask)
+#define SESSION_FLAGS_RANDOM_LOOKING 		(SESSION_FLAGS_START << session_flags_random_looking_mask)
+#define SESSION_FLAGS_C2S 			(SESSION_FLAGS_START << session_flags_c2s_mask)
+#define SESSION_FLAGS_S2C 			(SESSION_FLAGS_START << session_flags_s2c_mask)
+#define SESSION_FLAGS_BIDIRECTIONAL 		(SESSION_FLAGS_START << session_flags_bidirectional_mask)
+#define SESSION_FLAGS_TUNNELING 		(SESSION_FLAGS_START << session_flags_tunneling_mask)
+
+struct session_flags_message
+{
+        int magic;
+        uint64_t flags;
+        uint32_t array_num;
+        uint32_t *packet_sequence_array;
+};
\ No newline at end of file
diff --git a/dependence/include/stellar/session_manager.h b/dependence/include/stellar/session_manager.h
new file mode 100644
index 0000000..749ccbb
--- /dev/null
+++ b/dependence/include/stellar/session_manager.h
@@ -0,0 +1,27 @@
+
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include "stellar/exdata.h"
+#include "stellar/session.h"
+
+struct session_manager;
+
+int session_manager_new_session_exdata_index(struct session_manager *sess_mgr, const char *name, exdata_free *func, void *arg);
+
+typedef void on_session_callback(struct session *sess, struct packet *pkt, void *args);
+typedef void on_tcp_stream_callback(struct session *sess, const char *tcp_payload, uint32_t tcp_payload_len, void *args);
+
+int session_manager_subscribe_tcp(struct session_manager *sess_mgr, on_session_callback *cb, void *args);
+int session_manager_subscribe_udp(struct session_manager *sess_mgr, on_session_callback *cb, void *args);
+int session_manager_subscribe_control_packet(struct session_manager *sess_mgr, on_session_callback *cb, void *args);
+int session_manager_subscribe_tcp_stream(struct session_manager *sess_mgr, on_tcp_stream_callback *cb, void *args);
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/dependence/include/stellar/session_mq.h b/dependence/include/stellar/session_mq.h
deleted file mode 100644
index 3c62f69..0000000
--- a/dependence/include/stellar/session_mq.h
+++ /dev/null
@@ -1,36 +0,0 @@
-#pragma once
-
-#include "stellar.h"
-
-//session mq
-typedef void session_msg_free_cb_func(struct session *sess, void *msg, void *msg_free_arg);
-typedef void on_session_msg_cb_func(struct session *sess, int topic_id, const void *msg, void *per_session_ctx, void *plugin_env);
-
-//return topic_id
-int stellar_session_mq_create_topic(struct stellar *st, const char *topic_name, session_msg_free_cb_func *msg_free_cb, void *msg_free_arg);
-
-int stellar_session_mq_get_topic_id(struct stellar *st, const char *topic_name);
-
-int stellar_session_mq_update_topic(struct stellar *st, int topic_id, session_msg_free_cb_func *msg_free_cb, void *msg_free_arg);
-
-int stellar_session_mq_destroy_topic(struct stellar *st, int topic_id);
-
-//return 0 if success, otherwise return -1.
-int stellar_session_mq_subscribe(struct stellar *st, int topic_id, on_session_msg_cb_func *plugin_on_msg_cb, int plugin_id);
-
-int session_mq_publish_message(struct session *sess, int topic_id, void *msg);
-
-int session_mq_ignore_message(struct session *sess, int topic_id, int plugin_id);
-int session_mq_unignore_message(struct session *sess, int topic_id, int plugin_id);
-
-int session_mq_topic_is_active(struct session *sess, int topic_id);
-
-enum session_mq_priority 
-{
-	SESSION_MQ_PRIORITY_LOW,
-	SESSION_MQ_PRIORITY_NORMAL,
-	SESSION_MQ_PRIORITY_HIGH,
-	SESSION_MQ_PRIORITY_MAX,
-};
-
-int session_mq_publish_message_with_priority(struct session *sess, int topic_id, void *msg, enum session_mq_priority priority);
\ No newline at end of file
diff --git a/dependence/include/stellar/socks_decoder.h b/dependence/include/stellar/socks_decoder.h
new file mode 100644
index 0000000..c3034b8
--- /dev/null
+++ b/dependence/include/stellar/socks_decoder.h
@@ -0,0 +1,44 @@
+#include <sys/uio.h>
+ 
+#include <netinet/in.h>
+#ifndef IPV6_ADDR_LEN
+#define IPV6_ADDR_LEN   (sizeof(struct in6_addr))
+#endif
+
+
+#define SOCKS_MESSAGE_TOPIC "TOPIC_SOCKS"
+
+
+enum socks_addr_type
+{
+    SOCKS_ADDR_IPV4,
+    SOCKS_ADDR_IPV6,
+    SOCKS_ADDR_FQDN
+};
+ 
+struct socks_addr
+{
+    enum socks_addr_type type;
+    union
+    {
+        uint32_t ipv4;  /* network order */
+        uint8_t ipv6[IPV6_ADDR_LEN] ;
+        struct iovec fqdn;
+    };
+    uint16_t port;  /* network order */
+};
+ 
+enum socks_version
+{
+    SOCKS_VERSION_4,
+    SOCKS_VERSION_5
+};
+ 
+struct socks_info
+{
+    enum socks_version version;
+    struct socks_addr dst_addr;
+    struct iovec user_name;
+    struct iovec password;
+};//message data
+ 
\ No newline at end of file
diff --git a/dependence/include/stellar/stellar.h b/dependence/include/stellar/stellar.h
index e9322be..2f103a3 100644
--- a/dependence/include/stellar/stellar.h
+++ b/dependence/include/stellar/stellar.h
@@ -1,48 +1,35 @@
 #pragma once
 
-struct session;
-struct stellar;
-
-int stellar_get_worker_thread_num(struct stellar *st);
-int stellar_get_current_thread_id(struct stellar *st);
-
-//return plugin_env
-typedef void *plugin_on_load_func(struct stellar *st);
-typedef void plugin_on_unload_func(void *plugin_env);
+#ifdef __cplusplus
+extern "C"
+{
+#endif
 
-//return per_session_ctx
-typedef void *session_ctx_new_func(struct session *sess, void *plugin_env);
-typedef void session_ctx_free_func(struct session *sess, void *session_ctx, void *plugin_env);
-
-//intrinsic topic, publish packet as message
-#define TOPIC_TCP "TCP"  
-#define TOPIC_TCP_STREAM "TCP_STREAM"
-#define TOPIC_UDP "UDP"
-#define TOPIC_EGRESS "EGRESS"
-#define TOPIC_CONTROL_PACKET "CONTROL_PACKET"
-							
-//return session plugin_id
-int stellar_session_plugin_register(struct stellar *st, 
-									session_ctx_new_func session_ctx_new, 
-									session_ctx_free_func session_ctx_free, 
-									void *plugin_env);
-
-void stellar_session_plugin_dettach_current_session(struct session *sess);
+#include <stdint.h>
 
+#include "stellar/log.h"
+#include "stellar/packet.h"
 
+struct stellar;
 
-struct packet;
-typedef void plugin_on_packet_func(struct packet *pkt,  unsigned char ip_protocol, void *plugin_env);
 
-//return packet plugin_id
-int stellar_packet_plugin_register(struct stellar *st, unsigned char ip_protocol, plugin_on_packet_func on_packet, void *plugin_env);
 
+typedef void plugin_on_packet_func(struct packet *pkt, void *on_packet_cb_arg);
+//return 0 if success, otherwise return -1.
+int stellar_raw_packet_subscribe(struct stellar *st, plugin_on_packet_func *on_packet_cb, void *on_packet_cb_arg);
 
-//return polling work result, 0: no work, 1: work
-typedef int plugin_on_polling_func(void *plugin_env);
+void stellar_emit_datapath_telemetry(struct packet *pkt,  const char * module, const char *str);
 
-//return polling plugin_id
-int stellar_polling_plugin_register(struct stellar *st,  plugin_on_polling_func on_polling, void *plugin_env);
+// only send user build packet, can't send packet which come from network
+// void stellar_send_build_packet(struct stellar *st, struct packet *pkt);
 
+struct stellar *stellar_new(const char *toml_file);
+void stellar_run(struct stellar *st);
+void stellar_free(struct stellar *st);
+void stellar_loopbreak(struct stellar *st);
+void stellar_reload_log_level(struct stellar *st);
+struct logger *stellar_get_logger(struct stellar *st);
 
-void stellar_emit_datapath_telemetry(struct packet *pkt,  const char * module, const char *str);
\ No newline at end of file
+#ifdef __cplusplus
+}
+#endif
diff --git a/dependence/include/stellar/stratum_decoder.h b/dependence/include/stellar/stratum_decoder.h
new file mode 100644
index 0000000..a6eed42
--- /dev/null
+++ b/dependence/include/stellar/stratum_decoder.h
@@ -0,0 +1,18 @@
+#include <sys/uio.h>
+ 
+#define STRATUM_MESSAGE_TOPIC "TOPIC_STRATUM"
+ 
+enum cryptocurrency_type
+{
+    ETH=1,
+    OTHER=2
+};
+ 
+struct stratum_field
+{
+    enum cryptocurrency_type type;
+    struct iovec mining_pools;
+    struct iovec mining_program;
+    struct iovec mining_subscribe;
+     
+};//message data
\ No newline at end of file
diff --git a/dependence/include/stellar/utils.h b/dependence/include/stellar/utils.h
index 8158916..16fd318 100644
--- a/dependence/include/stellar/utils.h
+++ b/dependence/include/stellar/utils.h
@@ -1,43 +1,52 @@
 #pragma once
 
-#include <stdlib.h>	//calloc
-#include <stddef.h>	//NULL
+#include <stdlib.h> //calloc
+#include <stddef.h> //NULL
 
+#define ALLOC(type, number) ((type *)calloc(sizeof(type), number))
 #define CALLOC(type, number) ((type *)calloc(sizeof(type), number))
 
 #define REALLOC(type, ptr, number) ((type *)realloc(ptr, (number) * sizeof(type)))
 
-#define	FREE(p)	{free(p); p = NULL;}
+#define FREE(p)   \
+	{             \
+		free(p);  \
+		p = NULL; \
+	}
 
-#define	TRUE	1
-#define	FALSE	0
+#define TRUE 1
+#define FALSE 0
 
 #ifndef MAX
-#define MAX(a, b)  	(((a) > (b)) ? (a) : (b))
+#define MAX(a, b) (((a) > (b)) ? (a) : (b))
 #endif
 
 #ifndef MIN
-#define MIN(a, b)  	(((a) < (b)) ? (a) : (b))
+#define MIN(a, b) (((a) < (b)) ? (a) : (b))
 #endif
 
 #ifndef offsetof
-#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
+#define offsetof(TYPE, MEMBER) ((size_t) & ((TYPE *)0)->MEMBER)
 #endif
 
 #ifndef container_of
 #define container_of(ptr, type, member) ({			 \
 	const typeof( ((type *)0)->member ) *__mptr = (ptr); \
-	(type *)( (char *)__mptr - offsetof(type,member) );})
+	(type *)( (char *)__mptr - offsetof(type,member) ); })
 #endif
 
-#ifndef __unused
-#define __unused __attribute__((__unused__))
+#ifndef count_of
+#define count_of(x) (sizeof(x) / sizeof(0 [x]))
 #endif
 
 #ifndef likely
-#define likely(x)  __builtin_expect((x),1)
+#define likely(x) __builtin_expect((x), 1)
 #endif /* likely */
 
 #ifndef unlikely
-#define unlikely(x)  __builtin_expect((x),0)
+#define unlikely(x) __builtin_expect((x), 0)
 #endif /* unlikely */
+
+#ifndef __unused
+#define __unused __attribute__((__unused__))
+#endif