From b6bbf237e2afeaee53179cb3f2bdbb3372c410d9 Mon Sep 17 00:00:00 2001
From: feng <1304903146@qq.com>
Date: Wed, 17 Jun 2026 16:24:59 +0800
Subject: [PATCH] perf: remove debug

---
 utils/debug_traceroute.py | 152 --------------------------------------
 1 file changed, 152 deletions(-)
 delete mode 100644 utils/debug_traceroute.py

diff --git a/utils/debug_traceroute.py b/utils/debug_traceroute.py
deleted file mode 100644
index 1e6a216c1..000000000
--- a/utils/debug_traceroute.py
+++ /dev/null
@@ -1,152 +0,0 @@
-#!/usr/bin/env python3
-# -*- coding: utf-8 -*-
-
-import argparse
-import os
-import platform
-import select
-import socket
-import struct
-import sys
-import time
-import traceback
-
-
-def calculate_checksum(data):
-    checksum = 0
-    if len(data) % 2 == 1:
-        data += b'\x00'
-    for i in range(0, len(data), 2):
-        checksum += (data[i] << 8) + data[i + 1]
-    checksum = (checksum >> 16) + (checksum & 0xFFFF)
-    checksum = ~checksum & 0xFFFF
-    return checksum
-
-
-def build_icmp_packet(seq, ident=12345):
-    packet = struct.pack('!BBHHH', 8, 0, 0, ident, seq)
-    checksum = calculate_checksum(packet)
-    return struct.pack('!BBHHH', 8, 0, checksum, ident, seq)
-
-
-def resolve_target(target):
-    print(f'[resolve] input={target}')
-    addrinfos = socket.getaddrinfo(
-        target, None, socket.AF_UNSPEC, socket.SOCK_DGRAM
-    )
-    for index, info in enumerate(addrinfos, start=1):
-        family, socktype, proto, canonname, sockaddr = info
-        print(
-            '[resolve] #%s family=%s socktype=%s proto=%s canonname=%r sockaddr=%r'
-            % (index, family, socktype, proto, canonname, sockaddr)
-        )
-
-    family, _, _, _, sockaddr = addrinfos[0]
-    if family != socket.AF_INET:
-        raise RuntimeError(f'Only IPv4 is supported by this debug script, got family={family}')
-    resolved_ip = sockaddr[0]
-    print(f'[resolve] selected_ipv4={resolved_ip}')
-    return resolved_ip
-
-
-def recv_with_timeout(sock_fd, timeout):
-    ready, _, _ = select.select([sock_fd], [], [], timeout)
-    if not ready:
-        raise TimeoutError(f'recv timeout after {timeout}s')
-    return sock_fd.recvfrom(1024)
-
-
-def debug_traceroute(target, max_hops, timeout, pause):
-    print(f'[target] {target}')
-    resolved_ip = resolve_target(target)
-
-    print("[step] socket.getprotobyname('icmp')")
-    icmp_proto = socket.getprotobyname('icmp')
-    print(f'[ok] icmp_proto={icmp_proto}')
-
-    print('[step] socket(AF_INET, SOCK_RAW, icmp_proto)')
-    sock_fd = socket.socket(socket.AF_INET, socket.SOCK_RAW, icmp_proto)
-    print(f'[ok] raw_socket_fd={sock_fd.fileno()}')
-
-    try:
-        for ttl in range(1, max_hops + 1):
-            print(f'\n[ttl={ttl}]')
-
-            print(f'[step] setsockopt(IP_TTL={ttl})')
-            sock_fd.setsockopt(socket.IPPROTO_IP, socket.IP_TTL, ttl)
-            print('[ok] setsockopt')
-
-            print(f'[step] settimeout({timeout})')
-            sock_fd.settimeout(timeout)
-            print('[ok] settimeout')
-
-            packet = build_icmp_packet(ttl)
-            print(f'[step] sendto({resolved_ip}, 0), bytes={len(packet)}')
-            start_time = time.time()
-            sent_bytes = sock_fd.sendto(packet, (resolved_ip, 0))
-            print(f'[ok] sent_bytes={sent_bytes}')
-
-            if pause > 0:
-                time.sleep(pause)
-
-            print(f'[step] recvfrom(timeout={timeout})')
-            recv_packet, addr = recv_with_timeout(sock_fd, timeout)
-            elapsed_ms = (time.time() - start_time) * 1000
-            dest_ip = addr[0]
-            print(
-                f'[ok] addr={addr!r} bytes={len(recv_packet)} elapsed_ms={elapsed_ms:.3f}'
-            )
-            print(f'[hop] {ttl} {dest_ip} ({dest_ip}) {elapsed_ms:.3f} ms')
-
-            if dest_ip == resolved_ip:
-                print('[done] destination reached')
-                return 0
-
-        print('[done] max hops reached')
-        return 0
-    finally:
-        sock_fd.close()
-        print('[cleanup] socket closed')
-
-
-def main():
-    parser = argparse.ArgumentParser(
-        description='Debug raw-socket traceroute step by step'
-    )
-    parser.add_argument('target', help='IP or domain to trace')
-    parser.add_argument('--max-hops', type=int, default=5, help='Max hops to probe')
-    parser.add_argument('--timeout', type=float, default=3.0, help='Recv timeout in seconds')
-    parser.add_argument(
-        '--pause',
-        type=float,
-        default=0.01,
-        help='Pause between send and recv to mimic current implementation',
-    )
-    parser.add_argument(
-        '--traceback',
-        action='store_true',
-        help='Print full traceback on failure',
-    )
-    args = parser.parse_args()
-
-    print(f'[env] python={sys.version.split()[0]}')
-    print(f'[env] platform={platform.platform()}')
-    print(f'[env] pid={os.getpid()} uid={os.getuid()} euid={os.geteuid()}')
-    print(f'[env] argv={sys.argv!r}')
-
-    try:
-        return debug_traceroute(
-            target=args.target,
-            max_hops=args.max_hops,
-            timeout=args.timeout,
-            pause=args.pause,
-        )
-    except Exception as exc:
-        print(f'[error] {type(exc).__name__}: {exc}')
-        if args.traceback:
-            traceback.print_exc()
-        return 1
-
-
-if __name__ == '__main__':
-    raise SystemExit(main())