summaryrefslogtreecommitdiff
path: root/test/socket/test_unix.rb
blob: d05fd15a950a3b5489b11e7b9b612e8cf2f69ce7 (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
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
begin
  require "socket"
rescue LoadError
end

require "test/unit"
require "tempfile"
require "tmpdir"

class TestUNIXSocket < Test::Unit::TestCase
  def test_fd_passing
    r1, w = IO.pipe
    s1, s2 = UNIXSocket.pair
    begin
      s1.send_io(nil)
    rescue NotImplementedError
      assert_raise(NotImplementedError) { s2.recv_io }
    rescue TypeError
      s1.send_io(r1)
      r2 = s2.recv_io
      assert_equal(r1.stat.ino, r2.stat.ino)
      assert_not_equal(r1.fileno, r2.fileno)
      w.syswrite "a"
      assert_equal("a", r2.sysread(10))
    ensure
      s1.close
      s2.close
      w.close
      r1.close
      r2.close if r2 && !r2.closed?
    end
  end

  def test_fd_passing_n
    io_ary = []
    return if !defined?(Socket::SCM_RIGHTS)
    io_ary.concat IO.pipe
    io_ary.concat IO.pipe
    io_ary.concat IO.pipe
    send_io_ary = []
    io_ary.each {|io|
      send_io_ary << io
      UNIXSocket.pair {|s1, s2|
        begin
          ret = s1.sendmsg("\0", 0, nil, [Socket::SOL_SOCKET, Socket::SCM_RIGHTS,
                                          send_io_ary.map {|io| io.fileno }.pack("i!*")])
        rescue NotImplementedError
          return
        end
        assert_equal(1, ret)
        ret = s2.recvmsg
        data, srcaddr, flags, *ctls = ret
        recv_io_ary = []
        ctls.each {|ctl|
          next if ctl.level != Socket::SOL_SOCKET || ctl.type != Socket::SCM_RIGHTS
          recv_io_ary.concat ctl.data.unpack("i!*").map {|fd| IO.new(fd) }
        }
        assert_equal(send_io_ary.length, recv_io_ary.length)
        send_io_ary.length.times {|i|
          assert_not_equal(send_io_ary[i].fileno, recv_io_ary[i].fileno)
          assert(File.identical?(send_io_ary[i], recv_io_ary[i]))
        }
      }
    }
  ensure
    io_ary.each {|io| io.close if !io.closed? }
  end

  def test_sendmsg
    return if !defined?(Socket::SCM_RIGHTS)
    IO.pipe {|r1, w|
      UNIXSocket.pair {|s1, s2|
        begin
          ret = s1.sendmsg("\0", 0, nil, [Socket::SOL_SOCKET, Socket::SCM_RIGHTS, [r1.fileno].pack("i!")])
        rescue NotImplementedError
          return
        end
        assert_equal(1, ret)
        r2 = s2.recv_io
        begin
          assert(File.identical?(r1, r2))
        ensure
          r2.close
        end
      }
    }
  end

  def test_sendmsg_ancillarydata
    return if !defined?(Socket::SCM_RIGHTS)
    return if !defined?(Socket::AncillaryData)
    IO.pipe {|r1, w|
      UNIXSocket.pair {|s1, s2|
        begin
          ad = Socket::AncillaryData.int(:SOCKET, :RIGHTS, r1.fileno)
          ret = s1.sendmsg("\0", 0, nil, ad)
        rescue NotImplementedError
          return
        end
        assert_equal(1, ret)
        r2 = s2.recv_io
        begin
          assert(File.identical?(r1, r2))
        ensure
          r2.close
        end
      }
    }
  end

  def test_recvmsg
    return if !defined?(Socket::SCM_RIGHTS)
    IO.pipe {|r1, w|
      UNIXSocket.pair {|s1, s2|
        s1.send_io(r1)
        ret = s2.recvmsg
        data, srcaddr, flags, *ctls = ret
        assert_equal("\0", data)
	if flags == nil
	  # struct msghdr is 4.3BSD style (msg_accrights field).
	  assert_instance_of(Array, ctls)
	  assert_equal(0, ctls.length)
	else
	  # struct msghdr is POSIX/4.4BSD style (msg_control field).
	  assert_equal(0, flags & (Socket::MSG_TRUNC|Socket::MSG_CTRUNC))
	  assert_instance_of(Addrinfo, srcaddr)
	  assert_instance_of(Array, ctls)
	  assert_equal(1, ctls.length)
	  assert_instance_of(Socket::AncillaryData, ctls[0])
	  assert_equal(Socket::SOL_SOCKET, ctls[0].level)
	  assert_equal(Socket::SCM_RIGHTS, ctls[0].type)
	  assert_instance_of(String, ctls[0].data)
	  fd, rest = ctls[0].data.unpack("i!a*")
	  assert_equal("", rest)
	  r2 = IO.new(fd)
	  begin
	    assert(File.identical?(r1, r2))
	  ensure
	    r2.close
	  end
	end
      }
    }
  end

  def bound_unix_socket(klass)
    tmpfile = Tempfile.new("testrubysock")
    path = tmpfile.path
    tmpfile.close(true)
    yield klass.new(path), path
  ensure
    File.unlink path if path && File.socket?(path)
  end

  def test_addr
    bound_unix_socket(UNIXServer) {|serv, path|
      c = UNIXSocket.new(path)
      s = serv.accept
      assert_equal(["AF_UNIX", path], c.peeraddr)
      assert_equal(["AF_UNIX", ""], c.addr)
      assert_equal(["AF_UNIX", ""], s.peeraddr)
      assert_equal(["AF_UNIX", path], s.addr)
      assert_equal(path, s.path)
      assert_equal("", c.path)
    }
  end

  def test_noname_path
    s1, s2 = UNIXSocket.pair
    assert_equal("", s1.path)
    assert_equal("", s2.path)
  ensure
    s1.close
    s2.close
  end

  def test_noname_addr
    s1, s2 = UNIXSocket.pair
    assert_equal(["AF_UNIX", ""], s1.addr)
    assert_equal(["AF_UNIX", ""], s2.addr)
  ensure
    s1.close
    s2.close
  end

  def test_noname_peeraddr
    s1, s2 = UNIXSocket.pair
    assert_equal(["AF_UNIX", ""], s1.peeraddr)
    assert_equal(["AF_UNIX", ""], s2.peeraddr)
  ensure
    s1.close
    s2.close
  end

  def test_noname_unpack_sockaddr_un
    s1, s2 = UNIXSocket.pair
    n = nil
    assert_equal("", Socket.unpack_sockaddr_un(n)) if (n = s1.getsockname) != ""
    assert_equal("", Socket.unpack_sockaddr_un(n)) if (n = s1.getsockname) != ""
    assert_equal("", Socket.unpack_sockaddr_un(n)) if (n = s2.getsockname) != ""
    assert_equal("", Socket.unpack_sockaddr_un(n)) if (n = s1.getpeername) != ""
    assert_equal("", Socket.unpack_sockaddr_un(n)) if (n = s2.getpeername) != ""
  ensure
    s1.close
    s2.close
  end

  def test_noname_recvfrom
    s1, s2 = UNIXSocket.pair
    s2.write("a")
    assert_equal(["a", ["AF_UNIX", ""]], s1.recvfrom(10))
  ensure
    s1.close
    s2.close
  end

  def test_noname_recv_nonblock
    s1, s2 = UNIXSocket.pair
    s2.write("a")
    IO.select [s1]
    assert_equal("a", s1.recv_nonblock(10))
  ensure
    s1.close
    s2.close
  end

  def test_too_long_path
    assert_raise(ArgumentError) { Socket.sockaddr_un("a" * 300) }
    assert_raise(ArgumentError) { UNIXServer.new("a" * 300) }
  end

  def test_nul
    assert_raise(ArgumentError) { Socket.sockaddr_un("a\0b") }
  end

  def test_dgram_pair
    s1, s2 = UNIXSocket.pair(Socket::SOCK_DGRAM)
    assert_raise(Errno::EAGAIN) { s1.recv_nonblock(10) }
    s2.send("", 0)
    s2.send("haha", 0)
    s2.send("", 0)
    s2.send("", 0)
    assert_equal("", s1.recv(10))
    assert_equal("haha", s1.recv(10))
    assert_equal("", s1.recv(10))
    assert_equal("", s1.recv(10))
    assert_raise(Errno::EAGAIN) { s1.recv_nonblock(10) }
  ensure
    s1.close if s1
    s2.close if s2
  end

  def test_epipe # [ruby-dev:34619]
    s1, s2 = UNIXSocket.pair
    s1.shutdown(Socket::SHUT_WR)
    assert_raise(Errno::EPIPE) { s1.write "a" }
    assert_equal(nil, s2.read(1))
    s2.write "a"
    assert_equal("a", s1.read(1))
  end

  def test_socket_pair_with_block
    pair = nil
    ret = Socket.pair(Socket::AF_UNIX, Socket::SOCK_STREAM, 0) {|s1, s2|
      pair = [s1, s2]
      :return_value
    }
    assert_equal(:return_value, ret)
    assert_kind_of(Socket, pair[0])
    assert_kind_of(Socket, pair[1])
  end

  def test_unix_socket_pair_with_block
    pair = nil
    UNIXSocket.pair {|s1, s2|
      pair = [s1, s2]
    }
    assert_kind_of(UNIXSocket, pair[0])
    assert_kind_of(UNIXSocket, pair[1])
  end

  def test_initialize
    Dir.mktmpdir {|d|
      Socket.open(Socket::AF_UNIX, Socket::SOCK_STREAM, 0) {|s|
	s.bind(Socket.pack_sockaddr_un("#{d}/s1"))
	addr = s.getsockname
	assert_nothing_raised { Socket.unpack_sockaddr_un(addr) }
	assert_raise(ArgumentError) { Socket.unpack_sockaddr_in(addr) }
      }
      Socket.open("AF_UNIX", "SOCK_STREAM", 0) {|s|
	s.bind(Socket.pack_sockaddr_un("#{d}/s2"))
	addr = s.getsockname
	assert_nothing_raised { Socket.unpack_sockaddr_un(addr) }
	assert_raise(ArgumentError) { Socket.unpack_sockaddr_in(addr) }
      }
    }
  end

  def test_getcred_ucred
    return if /linux/ !~ RUBY_PLATFORM
    Dir.mktmpdir {|d|
      sockpath = "#{d}/sock"
      serv = Socket.unix_server_socket(sockpath)
      c = Socket.unix(sockpath)
      s, = serv.accept
      cred = s.getsockopt(:SOCKET, :PEERCRED)
      inspect = cred.inspect
      assert_match(/ pid=#{$$} /, inspect)
      assert_match(/ uid=#{Process.uid} /, inspect)
      assert_match(/ gid=#{Process.gid} /, inspect)
      assert_match(/ \(ucred\)/, inspect)
    }
  end

  def test_sendcred_ucred
    return if /linux/ !~ RUBY_PLATFORM
    Dir.mktmpdir {|d|
      sockpath = "#{d}/sock"
      serv = Socket.unix_server_socket(sockpath)
      c = Socket.unix(sockpath)
      s, = serv.accept
      s.setsockopt(:SOCKET, :PASSCRED, 1)
      c.print "a"
      msg, cliend_ai, rflags, cred = s.recvmsg
      inspect = cred.inspect
      assert_equal("a", msg)
      assert_match(/ pid=#{$$} /, inspect)
      assert_match(/ uid=#{Process.uid} /, inspect)
      assert_match(/ gid=#{Process.gid} /, inspect)
      assert_match(/ \(ucred\)/, inspect)
    }
  end

  def test_sendcred_sockcred
    return if /netbsd|freebsd/ !~ RUBY_PLATFORM
    Dir.mktmpdir {|d|
      sockpath = "#{d}/sock"
      serv = Socket.unix_server_socket(sockpath)
      c = Socket.unix(sockpath)
      s, = serv.accept
      s.setsockopt(0, Socket::LOCAL_CREDS, 1)
      c.print "a"
      msg, cliend_ai, rflags, cred = s.recvmsg
      assert_equal("a", msg)
      inspect = cred.inspect
      assert_match(/ uid=#{Process.uid} /, inspect)
      assert_match(/ euid=#{Process.euid} /, inspect)
      assert_match(/ gid=#{Process.gid} /, inspect)
      assert_match(/ egid=#{Process.egid} /, inspect)
      assert_match(/ \(sockcred\)/, inspect)
    }
  end

  def test_sendcred_cmsgcred
    return if /freebsd/ !~ RUBY_PLATFORM
    Dir.mktmpdir {|d|
      sockpath = "#{d}/sock"
      serv = Socket.unix_server_socket(sockpath)
      c = Socket.unix(sockpath)
      s, = serv.accept
      c.sendmsg("a", 0, nil, [:SOCKET, Socket::SCM_CREDS, ""])      
      msg, cliend_ai, rflags, cred = s.recvmsg
      assert_equal("a", msg)
      inspect = cred.inspect
      assert_match(/ pid=#{$$} /, inspect)
      assert_match(/ uid=#{Process.uid} /, inspect)
      assert_match(/ euid=#{Process.euid} /, inspect)
      assert_match(/ gid=#{Process.gid} /, inspect)
      assert_match(/ \(cmsgcred\)/, inspect)
    }
  end

end if defined?(UNIXSocket) && /cygwin/ !~ RUBY_PLATFORM