我正在尝试使用Python创建一个RFCOMM服务器进程,无需配对即可使用。最初,我从 PyBluez 文档中获取了两个示例脚本:
服务器:
# file: rfcomm-server.py
# auth: Albert Huang <albert@csail.mit.edu>
# desc: simple demonstration of a server application that uses RFCOMM sockets
#
# $Id: rfcomm-server.py 518 2007-08-10 07:20:07Z albert $
from bluetooth import *
server_sock=BluetoothSocket( RFCOMM )
server_sock.bind(("",PORT_ANY))
server_sock.listen(1)
port = server_sock.getsockname()[1]
uuid = "94f39d29-7d6d-437d-973b-fba39e49d4ee"
advertise_service( server_sock, "SampleServer",
service_id = uuid,
service_classes = [ uuid, SERIAL_PORT_CLASS ],
profiles = [ SERIAL_PORT_PROFILE ],
# protocols = [ OBEX_UUID ]
)
print "Waiting for connection on RFCOMM channel %d" % port
client_sock, client_info = server_sock.accept()
print "Accepted connection from ", client_info
try:
while True:
data = client_sock.recv(1024)
if len(data) == 0: break
print "received [%s]" % data
except IOError:
pass
print "disconnected"
client_sock.close()
server_sock.close()
print "all done"
客户:
# file: rfcomm-client.py
# auth: Albert Huang <albert@csail.mit.edu>
# desc: simple demonstration of a client application that uses RFCOMM sockets
# intended for use with rfcomm-server
#
# $Id: rfcomm-client.py 424 2006-08-24 03:35:54Z albert $
from bluetooth import *
import sys
addr = None
if len(sys.argv) < 2:
print "no device specified. Searching all nearby bluetooth devices for"
print "the SampleServer service"
else:
addr = sys.argv[1]
print "Searching for SampleServer on %s" % addr
# search for the SampleServer service
uuid = "94f39d29-7d6d-437d-973b-fba39e49d4ee"
service_matches = find_service( uuid = uuid, address = addr )
if len(service_matches) == 0:
print "couldn't find the SampleServer service =("
sys.exit(0)
first_match = service_matches[0]
port = first_match["port"]
name = first_match["name"]
host = first_match["host"]
print "connecting to "%s" on %s" % (name, host)
# Create the client socket
sock=BluetoothSocket( RFCOMM )
sock.connect((host, port))
print "connected. type stuff"
while True:
data = raw_input()
if len(data) == 0: break
sock.send(data)
sock.close()
当我在 Windows 上运行服务器脚本时,一切都按照我希望的方式工作 - 无需配对。在这个阶段,一切看起来都非常有希望。
但是,我需要服务器进程在 Debian Squeeze 下运行。当我在 Debian 上测试时,客户端连接被拒绝。在系统日志中,有来自蓝牙的消息,用于失败的链路密钥请求和 PIN 请求。
版本信息:
- 皮布鲁兹 0.18
- 蟒蛇 2.6
- 布鲁兹 4.66
- 连接两端的蓝牙 v2.0 硬件
这个讨论似乎表明,如果我可以调整服务器套接字的安全级别,那么配对将被禁用,一切都将按预期工作。不过,我不清楚如何使用 PyBluez 做到这一点,或者即使可能
。我已经尝试使用各种 BT_SECURITY* 常量调用 setsockopt(),以及抓取最后一个 PyBluez 并调用 setl2capsecurity(),但未能取得任何进展。
这可以通过PyBluez实现吗?
这被证明是 Debian Squeeze bluez 默认配置的问题。
如果其他人遇到此问题,请通过编辑/etc/bluetooth/main.conf 禁用 pnat 插件:
DisablePlugins = pnat
然后重新启动蓝牙。
$ sudo invoke-rc.d bluetooth restart
不需要对 PyBluez 代码进行任何更改。