aboutsummaryrefslogtreecommitdiffstats
path: root/wpaspy/wpaspy.py
blob: 89e973b984ef6f84540a073906659f8345c96dab (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
#!/usr/bin/python
#
# wpa_supplicant/hostapd control interface using Python
# Copyright (c) 2013, Jouni Malinen <j@w1.fi>
#
# This software may be distributed under the terms of the BSD license.
# See README for more details.

import os
import stat
import socket
import select

counter = 0

class Ctrl:
    def __init__(self, path, port=9877):
        global counter
        self.started = False
        self.attached = False
        self.path = path
        self.port = port

        try:
            mode = os.stat(path).st_mode
            if stat.S_ISSOCK(mode):
                self.udp = False
            else:
                self.udp = True
        except:
            self.udp = True

        if not self.udp:
            self.s = socket.socket(socket.AF_UNIX, socket.SOCK_DGRAM)
            self.dest = path
            self.local = "/tmp/wpa_ctrl_" + str(os.getpid()) + '-' + str(counter)
            counter += 1
            self.s.bind(self.local)
            try:
                self.s.connect(self.dest)
            except Exception as e:
                self.s.close()
                os.unlink(self.local)
                raise
        else:
            try:
                self.s = None
                ai_list = socket.getaddrinfo(path, port, socket.AF_INET,
                                             socket.SOCK_DGRAM)
                for af, socktype, proto, cn, sockaddr in ai_list:
                    self.sockaddr = sockaddr
                    break
                self.s = socket.socket(af, socktype)
                self.s.settimeout(5)
                self.s.sendto(b"GET_COOKIE", sockaddr)
                reply, server = self.s.recvfrom(4096)
                self.cookie = reply
                self.port = port
            except:
                print("connect exception ", path, str(port))
                if self.s != None:
                    self.s.close()
                raise
        self.started = True

    def __del__(self):
        self.close()

    def close(self):
        if self.attached:
            try:
                self.detach()
            except Exception as e:
                # Need to ignore this allow the socket to be closed
                self.attached = False
                pass
        if self.started:
            self.s.close()
            if not self.udp:
                os.unlink(self.local)
            self.started = False

    def request(self, cmd, timeout=10):
        if type(cmd) == str:
            try:
                cmd2 = cmd.encode()
                cmd = cmd2
            except UnicodeDecodeError as e:
                pass
        if self.udp:
            self.s.sendto(self.cookie + cmd, self.sockaddr)
        else:
            self.s.send(cmd)
        [r, w, e] = select.select([self.s], [], [], timeout)
        if r:
            res = self.s.recv(4096).decode()
            try:
                r = str(res)
            except UnicodeDecodeError as e:
                r = res
            return r
        raise Exception("Timeout on waiting response")

    def attach(self):
        if self.attached:
            return None
        res = self.request("ATTACH")
        if "OK" in res:
            self.attached = True
            return None
        raise Exception("ATTACH failed")

    def detach(self):
        if not self.attached:
            return None
        while self.pending():
            ev = self.recv()
        res = self.request("DETACH")
        if "FAIL" not in res:
            self.attached = False
            return None
        raise Exception("DETACH failed")

    def terminate(self):
        if self.attached:
            try:
                self.detach()
            except Exception as e:
                # Need to ignore this to allow the socket to be closed
                self.attached = False
        self.request("TERMINATE")
        self.close()

    def pending(self, timeout=0):
        [r, w, e] = select.select([self.s], [], [], timeout)
        if r:
            return True
        return False

    def recv(self):
        res = self.s.recv(4096).decode()
        try:
            r = str(res)
        except UnicodeDecodeError as e:
            r = res
        return r