关于使用 socket 构造 icmp 包报错 Permission denied 的问题

ping普通地址无权限问题

附一下代码

def init_icmp_packet(sequence):
    # 把字节打包成二进制数据
    data_type = 8  # ICMP Echo Request
    data_code = 0  # must be zero
    data_checksum = 0  # "...with value 0 substituted for this field..."
    data_ID = process_id  # Identifier
    payload = b'abcdefghijklmnopqrstuvwabcdefghi'  # data
    icmp_packet = struct.pack('>BBHHH32s', data_type, data_code, data_checksum, data_ID, sequence, payload)
    icmp_checksum = check_sum(icmp_packet)  # 获取校验和
    icmp_packet = struct.pack('>BBHHH32s', data_type, data_code, icmp_checksum, data_ID, sequence, payload)
    return icmp_packet


def init_raw_socket(ip_addr, icmp_packet):
    raw_socket = socket.socket(socket.AF_INET, socket.SOCK_RAW, 1)
    # 服务端设置非阻塞
    # raw_socket.setblocking(False)
    raw_socket.sendto(icmp_packet, (ip_addr, 1))   # 报错行
    return raw_socket

问题已解决.附上解决后的代码:

def init_raw_socket(ip_addr, icmp_packet):
    raw_socket = socket.socket(socket.AF_INET, socket.SOCK_RAW, 1)
    raw_socket.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)   # 解决问题的代码,允许发送广播数据
    # 服务端设置非阻塞
    # raw_socket.setblocking(False)
    raw_socket.sendto(icmp_packet, (ip_addr, 1))
    return raw_socket

关于setsockopt方法的用法及参数的含义参考这里