diff --git a/Product/build/user.userhash.Makefile b/Product/build/user.userhash.Makefile
new file mode 100644
index 000000000..60bc6d183
--- /dev/null
+++ b/Product/build/user.userhash.Makefile
@@ -0,0 +1,77 @@
+# target name, the target name must have the same name of c source file
+TARGET_NAME=userhash
+
+# target 
+# for linux module driver: KO
+# for application: EXE
+# for dynamic library: DLL
+TARGET_TYPE = DLL
+ 
+# target object
+# for application: APP
+# for device driver: DRV
+TARGET_OBJ  = APP
+
+# custom install dir
+TARGET_BOX = 
+
+#debug mode or release mode
+DEBUG 			= TRUE
+
+PLAT_LINUX		?= TRUE
+PLAT_ARM64		?= TRUE
+
+VPATH = ../../Product/user/user_auth
+
+# source code
+
+# set the source file, don't used .o because of ...
+
+COMMON_SRCS = user_hashtable.c
+
+# MRS Board Source Files
+PLAT_LINUX_SRCS = $(COMMON_SRCS)
+PLAT_ARM64_SRCS = $(COMMON_SRCS)
+
+# gcc CFLAGS
+PLAT_ARM64_CFLAGS := -fPIC  -I../../Common -I../../Product/common
+PLAT_LINUX_CFLAGS := $(PLAT_ARM64_CFLAGS)
+
+
+PLAT_ARM64_LDFLAGS  := -fPIC -shared 
+PLAT_LINUX_LDFLAGS := $(PLAT_ARM64_LDFLAGS)
+
+
+#gcc libs
+ARM64_LIBS		:= -lcjson -lpthread -lm
+LINUX_LIBS		:= -lcjson -lpthread -lm
+
+ifeq	($(PLAT_ARM64), TRUE)
+DEPEND_LIB			+= 
+USER_CLEAN_ITEMS	+=
+endif
+
+ifeq	($(PLAT_LINUX), TRUE)
+DEPEND_LIB			+=
+USER_CLEAN_ITEMS	+=
+endif
+
+# this line must be at below of thus, because of...	
+include ../../Common/common.Makefile
+
+ifneq ($(MAKECMDGOALS), clean)
+ifneq ($(MAKECMDGOALS), cleanall)
+ifneq ($(notdir $(DEPEND_LIB)), $(wildcard $(DEPEND_LIB)))
+$(shell $(CP) $(DEPEND_LIB) ./)
+endif
+endif
+endif
+
+ifeq ($(MAKECMDGOALS), )
+$(shell find ./ -name "$(TARGET)-*.ko" -delete)
+else
+ifeq ($(MAKECMDGOALS), all)
+$(shell find ./ -name "$(TARGET)-*.ko" -delete)
+endif
+endif
+
diff --git a/Product/user/user_auth/user_hashtable.c b/Product/user/user_auth/user_hashtable.c
new file mode 100644
index 000000000..c6b7f6660
--- /dev/null
+++ b/Product/user/user_auth/user_hashtable.c
@@ -0,0 +1,169 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include "hlist.h"
+#include "user_hashtable.h"
+
+/*链表全局变量 */
+struct hlist_head *hash;
+USER_INFO *pNode ;
+
+
+/*计算hash值 */
+struct hlist_head * call_hash(struct hlist_head *hash, uint32_t ip)
+{
+  unsigned int val = ip % 100;
+  printf("val =%d\n", val);
+  return &hash[val];
+}
+
+
+/*初始化函数 */
+int Init_hash()
+{
+  int i = 0;
+
+  /*创建hash头 */
+  hash = (struct hlist_head*)malloc(sizeof(*hash)*100);
+  if(NULL == hash)
+  {
+    printf("alloc error\n");
+    return -1;
+  }
+  
+  /*初始化hash表头 */
+  for(i = 0; i < 100; i++)
+  INIT_HLIST_HEAD(&hash[i]);
+
+
+  /*hsah桶普通节点分配内存 */
+  pNode = (struct user_info *)malloc(sizeof(struct user_info));
+  if (NULL == pNode)
+  {
+    printf("alloc error\n");
+    return -1;
+  }
+ 
+  /*初始化hash桶的普通结点 */
+  memset(pNode,0,sizeof(struct user_info));
+  INIT_HLIST_NODE(&pNode->hnode);
+}
+
+
+
+/*查找用户信息*/
+USER_INFO * ufind_user(uint32_t user_ip)
+{  
+
+  struct hlist_node *p = NULL, *n = NULL ;
+
+  /* 这个实际上就是一个for循环，从头到尾遍历链表。
+  * pos：struct hlist_node类型的一个指针；
+  * n：struct hlist_node类型的一个指针；
+  * head：struct hlist_head类型的一个指针，表示hlist链表的头结点。
+  */ 
+
+  hlist_for_each_safe(p,n,call_hash(hash,user_ip))
+  {
+
+    /* p：表示struct hlist_node类型的一个地址。
+    * struct user_info：结构体名
+    * hnode：type结构体中的hlist_node成员变量的名称
+    * 表示得到p所指地址的这个结构体的首地址
+    */
+    pNode = hlist_entry(p, struct user_info ,hnode);
+    if(pNode != NULL)
+    printf("user_id :%d\n",pNode->id);
+    return pNode;
+  }
+}
+
+
+/*增加用户信息*/
+int uadd_user(uint32_t user_ip, int user_id)
+{
+  struct hlist_node *pos = NULL, *n = NULL ;
+
+  pNode = NULL;
+  struct hlist_head* pVal = call_hash(hash, user_ip);
+  printf("pVal = %p, pVal->first = %p\n", pVal, pVal->first);
+
+  //hlist_for_each_safe(p,n,call_hash(hash, user_ip))  /*查找ip是否存在hash表中 */
+  for (pos = pVal->first; pos && ({ n = pos->next; 1; }); pos = n)
+  { 
+    pNode = hlist_entry(pos, struct user_info ,hnode);
+    if(pNode != NULL)
+      printf("IP ALEADY EXISTED\n");
+  }
+
+  if (pNode == NULL)
+    { 
+      pNode = (struct user_info *)malloc(sizeof(struct user_info));
+      if (NULL == pNode)
+      {
+        return -1;
+      }
+      memset(pNode,0,sizeof(struct user_info));
+      INIT_HLIST_NODE(&pNode->hnode);
+      pNode->ip = user_ip;
+      hlist_add_head(&pNode->hnode, call_hash(hash, user_ip));
+    }
+
+  pNode->id = user_id;
+ 
+}
+
+/*删除用户信息 */
+void udelete_user(int user_ip)
+{
+ 
+  struct hlist_node *p = NULL, *n = NULL ;
+  int i = 0;
+
+  hlist_for_each_safe(p,n,call_hash(hash,user_ip))
+  {  
+    pNode = hlist_entry(p, struct user_info ,hnode);
+    hlist_del(&pNode->hnode);
+    free(pNode);
+  }
+}
+
+/*删除所有的hash节点 */
+void udelete_all()
+{ 
+  struct hlist_node *p = NULL, *n = NULL ;
+  int i = 0;
+
+  for(i = 0; i < 100; i++)
+  {
+    hlist_for_each_safe(p,n,&hash[i])
+    {  
+      pNode = hlist_entry(p, struct user_info ,hnode);
+      hlist_del(&pNode->hnode);
+      free(pNode);
+    }
+  }
+}
+
+/*打印所有信息信息 */
+void uprintf_users()
+{
+  struct hlist_node *p = NULL, *n = NULL ;
+  int i = 0;
+
+  for(i = 0; i < 100; i++)
+  {
+    hlist_for_each_safe(p,n,&hash[i])
+    {  
+      char str[32];
+      pNode = hlist_entry(p, struct user_info ,hnode);
+      if(pNode != NULL)
+        inet_ntop(AF_INET, (void *)&pNode->ip, str, 32);
+        printf("user_ip :%s  user_id:%d\n", str, pNode->id);
+    }
+  }
+}
+