fix change max lenght of tcp segment

ubuntu_intermediate/inter_op_ebpf.c

@@ -16,6 +16,7 @@ BPF_HASH(ip_pool, __u32, __u32, 1024);
 
 #define MY_OPTION_TYPE 31 // Custom option type
 #define MAX_CHECKING 4
+#define MAX_CSUM_WORDS 750
 
 static inline __u16 csum_fold_helper(__u32 csum)
 {
@@ -31,7 +32,7 @@ static inline __u16 csum_fold_helper(__u32 csum)
 static __always_inline __u32 sum16(const void *data, __u32 size, const void *data_end)
 {
     __u32 s = 0;
-    for (__u8 i = 0; i < 30; i++)
+    for (__u32 i = 0; i < MAX_CSUM_WORDS; i++)
     {
         if (2 * i >= size)
         {
@@ -51,6 +52,7 @@ static __always_inline __u32 sum16(const void *data, __u32 size, const void *dat
             s += byte;
         }
     }
+
     return s;
 }