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ubuntu_base/op_ebpf.c

@@ -83,7 +83,7 @@ int op_ebpf(struct xdp_md *ctx)
     int options_len = (ip->ihl * 4) - sizeof(struct iphdr);
     __u8 *options = (__u8 *)(ip + 1);
 
-    bpf_trace_printk("Packet received on interface %d and option length %d\n", ctx->ingress_ifindex, options_len);
+    // bpf_trace_printk("Packet received on interface %d and option length %d\n", ctx->ingress_ifindex, options_len);
 
     __u8 is_register = 1;
     __u8 is_exist_custom_option = 0;

ubuntu_intermediate/inter_op_ebpf.c

@@ -76,14 +76,14 @@ static inline __u16 tcp_checksum(struct iphdr *ip, struct tcphdr *tcp, void *dat
     csum += (ip->daddr >> 16) + (ip->daddr & 0xFFFF);
     csum += htons(6);
     csum += htons(tcp_len);
-    bpf_trace_printk("csum1: %lx", csum);
+    // bpf_trace_printk("csum1: %lx", csum);
 
     // 3. Manual unrolling (safer than loops)
     __u16 *ptr = (__u16 *)tcp;
     __u16 words = tcp_len / 2;
 
     csum += sum16(tcp, tcp_len, data_end);
-    bpf_trace_printk("csum2: %lx", csum);
+    // bpf_trace_printk("csum2: %lx", csum);
 
     return csum_fold_helper(csum);
 }
@@ -276,14 +276,14 @@ int inter_op_ebpf(struct xdp_md *ctx)
     if (saved_daddr)
     {
         ip->daddr = *saved_daddr;
-        bpf_trace_printk("Change dest");
+        // bpf_trace_printk("Change dest");
         ip->check = iph_csum(ip, data_end);
         tcp->check = tcp_checksum(ip, tcp, data_end);
     }
     else if (saved_saddr)
     {
         ip->saddr = *saved_saddr;
-        bpf_trace_printk("Change src");
+        // bpf_trace_printk("Change src");
         ip->check = iph_csum(ip, data_end);
         tcp->check = tcp_checksum(ip, tcp, data_end);
     }