TSG-17749 tsg-service-chaining-engine更改VXLAN Frame源端口的计算方式

platform/src/health_check.cpp

@@ -161,6 +161,29 @@ static int health_check_method_table_add(struct session_table_addr *table, char
     return 0;
 }
 
+#define CHECKSUM_CARRY(x) (x = (x >> 16) + (x & 0xffff), (~(x + (x >> 16)) & 0xffff))
+static inline int checksum(uint16_t *data, int len)
+{
+    int sum = 0;
+    int nleft = len;
+    uint16_t ans = 0;
+    uint16_t *w = data;
+
+    while (nleft > 1)
+    {
+        sum += *w++;
+        nleft -= 2;
+    }
+
+    if (nleft == 1)
+    {
+        *(char *)(&ans) = *(char *)w;
+        sum += ans;
+    }
+
+    return sum;
+}
+
 static int send_icmp_pkt(char *addr)
 {
     int sockfd;