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
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
|
/*
* Copyright (C) 2011 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; If not, see
* <http://www.gnu.org/licenses/>.
*
* Author: Daniel P. Berrange <berrange@redhat.com>
*/
#include <config.h>
#include <stdlib.h>
#include <signal.h>
#ifdef HAVE_IFADDRS_H
# include <ifaddrs.h>
#endif
#include <netdb.h>
#include "testutils.h"
#include "util.h"
#include "virterror_internal.h"
#include "memory.h"
#include "logging.h"
#include "virfile.h"
#include "rpc/virnetsocket.h"
#define VIR_FROM_THIS VIR_FROM_RPC
#if HAVE_IFADDRS_H
# define BASE_PORT 5672
static int
checkProtocols(bool *hasIPv4, bool *hasIPv6,
int *freePort)
{
struct ifaddrs *ifaddr = NULL, *ifa;
struct addrinfo hints;
struct addrinfo *ai = NULL;
struct sockaddr_in in4;
struct sockaddr_in6 in6;
int s4 = -1, s6 = -1;
int i;
int ret = -1;
memset(&hints, 0, sizeof(hints));
*hasIPv4 = *hasIPv6 = false;
*freePort = 0;
if (getifaddrs(&ifaddr) < 0)
goto cleanup;
for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
if (!ifa->ifa_addr)
continue;
if (ifa->ifa_addr->sa_family == AF_INET)
*hasIPv4 = true;
if (ifa->ifa_addr->sa_family == AF_INET6)
*hasIPv6 = true;
}
hints.ai_flags = AI_PASSIVE | AI_ADDRCONFIG;
hints.ai_family = AF_INET6;
hints.ai_socktype = SOCK_STREAM;
if (getaddrinfo("::1", "5672", &hints, &ai) != 0)
*hasIPv6 = false;
freeaddrinfo(ai);
VIR_DEBUG("Protocols: v4 %d v6 %d\n", *hasIPv4, *hasIPv6);
freeifaddrs(ifaddr);
for (i = 0 ; i < 50 ; i++) {
int only = 1;
if ((s4 = socket(AF_INET, SOCK_STREAM, 0)) < 0)
goto cleanup;
if (*hasIPv6) {
if ((s6 = socket(AF_INET6, SOCK_STREAM, 0)) < 0)
goto cleanup;
if (setsockopt(s6, IPPROTO_IPV6, IPV6_V6ONLY, &only, sizeof(only)) < 0)
goto cleanup;
}
memset(&in4, 0, sizeof(in4));
memset(&in6, 0, sizeof(in6));
in4.sin_family = AF_INET;
in4.sin_port = htons(BASE_PORT + i);
in4.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
in6.sin6_family = AF_INET6;
in6.sin6_port = htons(BASE_PORT + i);
in6.sin6_addr = in6addr_loopback;
if (bind(s4, (struct sockaddr *)&in4, sizeof(in4)) < 0) {
if (errno == EADDRINUSE) {
VIR_FORCE_CLOSE(s4);
VIR_FORCE_CLOSE(s6);
continue;
}
goto cleanup;
}
if (*hasIPv6) {
if (bind(s6, (struct sockaddr *)&in6, sizeof(in6)) < 0) {
if (errno == EADDRINUSE) {
VIR_FORCE_CLOSE(s4);
VIR_FORCE_CLOSE(s6);
continue;
}
goto cleanup;
}
}
*freePort = BASE_PORT + i;
break;
}
VIR_DEBUG("Choose port %d\n", *freePort);
ret = 0;
cleanup:
VIR_FORCE_CLOSE(s4);
VIR_FORCE_CLOSE(s6);
return ret;
}
struct testTCPData {
const char *lnode;
int port;
const char *cnode;
};
static int testSocketTCPAccept(const void *opaque)
{
virNetSocketPtr *lsock = NULL; /* Listen socket */
size_t nlsock = 0, i;
virNetSocketPtr ssock = NULL; /* Server socket */
virNetSocketPtr csock = NULL; /* Client socket */
const struct testTCPData *data = opaque;
int ret = -1;
char portstr[100];
snprintf(portstr, sizeof(portstr), "%d", data->port);
if (virNetSocketNewListenTCP(data->lnode, portstr, &lsock, &nlsock) < 0)
goto cleanup;
for (i = 0 ; i < nlsock ; i++) {
if (virNetSocketListen(lsock[i], 0) < 0)
goto cleanup;
}
if (virNetSocketNewConnectTCP(data->cnode, portstr, &csock) < 0)
goto cleanup;
virObjectUnref(csock);
for (i = 0 ; i < nlsock ; i++) {
if (virNetSocketAccept(lsock[i], &ssock) != -1 && ssock) {
char c = 'a';
if (virNetSocketWrite(ssock, &c, 1) != -1 &&
virNetSocketRead(ssock, &c, 1) != -1) {
VIR_DEBUG("Unexpected client socket present");
goto cleanup;
}
}
virObjectUnref(ssock);
ssock = NULL;
}
ret = 0;
cleanup:
virObjectUnref(ssock);
for (i = 0 ; i < nlsock ; i++)
virObjectUnref(lsock[i]);
VIR_FREE(lsock);
return ret;
}
#endif
#ifndef WIN32
static int testSocketUNIXAccept(const void *data ATTRIBUTE_UNUSED)
{
virNetSocketPtr lsock = NULL; /* Listen socket */
virNetSocketPtr ssock = NULL; /* Server socket */
virNetSocketPtr csock = NULL; /* Client socket */
int ret = -1;
char *path;
char *tmpdir;
char template[] = "/tmp/libvirt_XXXXXX";
tmpdir = mkdtemp(template);
if (tmpdir == NULL) {
VIR_WARN("Failed to create temporary directory");
goto cleanup;
}
if (virAsprintf(&path, "%s/test.sock", tmpdir) < 0)
goto cleanup;
if (virNetSocketNewListenUNIX(path, 0700, -1, getgid(), &lsock) < 0)
goto cleanup;
if (virNetSocketListen(lsock, 0) < 0)
goto cleanup;
if (virNetSocketNewConnectUNIX(path, false, NULL, &csock) < 0)
goto cleanup;
virObjectUnref(csock);
if (virNetSocketAccept(lsock, &ssock) != -1) {
char c = 'a';
if (virNetSocketWrite(ssock, &c, 1) != -1) {
VIR_DEBUG("Unexpected client socket present");
goto cleanup;
}
}
ret = 0;
cleanup:
VIR_FREE(path);
virObjectUnref(lsock);
virObjectUnref(ssock);
if (tmpdir)
rmdir(tmpdir);
return ret;
}
static int testSocketUNIXAddrs(const void *data ATTRIBUTE_UNUSED)
{
virNetSocketPtr lsock = NULL; /* Listen socket */
virNetSocketPtr ssock = NULL; /* Server socket */
virNetSocketPtr csock = NULL; /* Client socket */
int ret = -1;
char *path;
char *tmpdir;
char template[] = "/tmp/libvirt_XXXXXX";
tmpdir = mkdtemp(template);
if (tmpdir == NULL) {
VIR_WARN("Failed to create temporary directory");
goto cleanup;
}
if (virAsprintf(&path, "%s/test.sock", tmpdir) < 0)
goto cleanup;
if (virNetSocketNewListenUNIX(path, 0700, -1, getgid(), &lsock) < 0)
goto cleanup;
if (STRNEQ(virNetSocketLocalAddrString(lsock), "127.0.0.1;0")) {
VIR_DEBUG("Unexpected local address");
goto cleanup;
}
if (virNetSocketRemoteAddrString(lsock) != NULL) {
VIR_DEBUG("Unexpected remote address");
goto cleanup;
}
if (virNetSocketListen(lsock, 0) < 0)
goto cleanup;
if (virNetSocketNewConnectUNIX(path, false, NULL, &csock) < 0)
goto cleanup;
if (STRNEQ(virNetSocketLocalAddrString(csock), "127.0.0.1;0")) {
VIR_DEBUG("Unexpected local address");
goto cleanup;
}
if (STRNEQ(virNetSocketRemoteAddrString(csock), "127.0.0.1;0")) {
VIR_DEBUG("Unexpected local address");
goto cleanup;
}
if (virNetSocketAccept(lsock, &ssock) < 0) {
VIR_DEBUG("Unexpected client socket missing");
goto cleanup;
}
if (STRNEQ(virNetSocketLocalAddrString(ssock), "127.0.0.1;0")) {
VIR_DEBUG("Unexpected local address");
goto cleanup;
}
if (STRNEQ(virNetSocketRemoteAddrString(ssock), "127.0.0.1;0")) {
VIR_DEBUG("Unexpected local address");
goto cleanup;
}
ret = 0;
cleanup:
VIR_FREE(path);
virObjectUnref(lsock);
virObjectUnref(ssock);
virObjectUnref(csock);
if (tmpdir)
rmdir(tmpdir);
return ret;
}
static int testSocketCommandNormal(const void *data ATTRIBUTE_UNUSED)
{
virNetSocketPtr csock = NULL; /* Client socket */
char buf[100];
size_t i;
int ret = -1;
virCommandPtr cmd = virCommandNewArgList("/bin/cat", "/dev/zero", NULL);
virCommandAddEnvPassCommon(cmd);
if (virNetSocketNewConnectCommand(cmd, &csock) < 0)
goto cleanup;
virNetSocketSetBlocking(csock, true);
if (virNetSocketRead(csock, buf, sizeof(buf)) < 0)
goto cleanup;
for (i = 0 ; i < sizeof(buf) ; i++)
if (buf[i] != '\0')
goto cleanup;
ret = 0;
cleanup:
virObjectUnref(csock);
return ret;
}
static int testSocketCommandFail(const void *data ATTRIBUTE_UNUSED)
{
virNetSocketPtr csock = NULL; /* Client socket */
char buf[100];
int ret = -1;
virCommandPtr cmd = virCommandNewArgList("/bin/cat", "/dev/does-not-exist", NULL);
virCommandAddEnvPassCommon(cmd);
if (virNetSocketNewConnectCommand(cmd, &csock) < 0)
goto cleanup;
virNetSocketSetBlocking(csock, true);
if (virNetSocketRead(csock, buf, sizeof(buf)) == 0)
goto cleanup;
ret = 0;
cleanup:
virObjectUnref(csock);
return ret;
}
struct testSSHData {
const char *nodename;
const char *service;
const char *binary;
const char *username;
bool noTTY;
bool noVerify;
const char *netcat;
const char *keyfile;
const char *path;
const char *expectOut;
bool failConnect;
bool dieEarly;
};
static int testSocketSSH(const void *opaque)
{
const struct testSSHData *data = opaque;
virNetSocketPtr csock = NULL; /* Client socket */
int ret = -1;
char buf[1024];
if (virNetSocketNewConnectSSH(data->nodename,
data->service,
data->binary,
data->username,
data->noTTY,
data->noVerify,
data->netcat,
data->keyfile,
data->path,
&csock) < 0)
goto cleanup;
virNetSocketSetBlocking(csock, true);
if (data->failConnect) {
if (virNetSocketRead(csock, buf, sizeof(buf)-1) >= 0) {
VIR_DEBUG("Expected connect failure, but got some socket data");
goto cleanup;
}
} else {
ssize_t rv;
if ((rv = virNetSocketRead(csock, buf, sizeof(buf)-1)) < 0) {
VIR_DEBUG("Didn't get any socket data");
goto cleanup;
}
buf[rv] = '\0';
if (!STREQ(buf, data->expectOut)) {
virtTestDifference(stderr, data->expectOut, buf);
goto cleanup;
}
if (data->dieEarly &&
virNetSocketRead(csock, buf, sizeof(buf)-1) >= 0) {
VIR_DEBUG("Got too much socket data");
goto cleanup;
}
}
ret = 0;
cleanup:
virObjectUnref(csock);
return ret;
}
#endif
static int
mymain(void)
{
int ret = 0;
#ifdef HAVE_IFADDRS_H
bool hasIPv4, hasIPv6;
int freePort;
#endif
signal(SIGPIPE, SIG_IGN);
#ifdef HAVE_IFADDRS_H
if (checkProtocols(&hasIPv4, &hasIPv6, &freePort) < 0) {
fprintf(stderr, "Cannot identify IPv4/6 availability\n");
return EXIT_FAILURE;
}
if (hasIPv4) {
struct testTCPData tcpData = { "127.0.0.1", freePort, "127.0.0.1" };
if (virtTestRun("Socket TCP/IPv4 Accept", 1, testSocketTCPAccept, &tcpData) < 0)
ret = -1;
}
if (hasIPv6) {
struct testTCPData tcpData = { "::1", freePort, "::1" };
if (virtTestRun("Socket TCP/IPv6 Accept", 1, testSocketTCPAccept, &tcpData) < 0)
ret = -1;
}
if (hasIPv6 && hasIPv4) {
struct testTCPData tcpData = { NULL, freePort, "127.0.0.1" };
if (virtTestRun("Socket TCP/IPv4+IPv6 Accept", 1, testSocketTCPAccept, &tcpData) < 0)
ret = -1;
tcpData.cnode = "::1";
if (virtTestRun("Socket TCP/IPv4+IPv6 Accept", 1, testSocketTCPAccept, &tcpData) < 0)
ret = -1;
}
#endif
#ifndef WIN32
if (virtTestRun("Socket UNIX Accept", 1, testSocketUNIXAccept, NULL) < 0)
ret = -1;
if (virtTestRun("Socket UNIX Addrs", 1, testSocketUNIXAddrs, NULL) < 0)
ret = -1;
if (virtTestRun("Socket External Command /dev/zero", 1, testSocketCommandNormal, NULL) < 0)
ret = -1;
if (virtTestRun("Socket External Command /dev/does-not-exist", 1, testSocketCommandFail, NULL) < 0)
ret = -1;
struct testSSHData sshData1 = {
.nodename = "somehost",
.path = "/tmp/socket",
.expectOut = "somehost sh -c 'if 'nc' -q 2>&1 | grep \"requires an argument\" >/dev/null 2>&1; then "
"ARG=-q0;"
"else "
"ARG=;"
"fi;"
"'nc' $ARG -U /tmp/socket'\n",
};
if (virtTestRun("SSH test 1", 1, testSocketSSH, &sshData1) < 0)
ret = -1;
struct testSSHData sshData2 = {
.nodename = "somehost",
.service = "9000",
.username = "fred",
.netcat = "netcat",
.noTTY = true,
.noVerify = false,
.path = "/tmp/socket",
.expectOut = "-p 9000 -l fred -T -o BatchMode=yes -e none somehost sh -c '"
"if 'netcat' -q 2>&1 | grep \"requires an argument\" >/dev/null 2>&1; then "
"ARG=-q0;"
"else "
"ARG=;"
"fi;"
"'netcat' $ARG -U /tmp/socket'\n",
};
if (virtTestRun("SSH test 2", 1, testSocketSSH, &sshData2) < 0)
ret = -1;
struct testSSHData sshData3 = {
.nodename = "somehost",
.service = "9000",
.username = "fred",
.netcat = "netcat",
.noTTY = false,
.noVerify = true,
.path = "/tmp/socket",
.expectOut = "-p 9000 -l fred -o StrictHostKeyChecking=no somehost sh -c '"
"if 'netcat' -q 2>&1 | grep \"requires an argument\" >/dev/null 2>&1; then "
"ARG=-q0;"
"else "
"ARG=;"
"fi;"
"'netcat' $ARG -U /tmp/socket'\n",
};
if (virtTestRun("SSH test 3", 1, testSocketSSH, &sshData3) < 0)
ret = -1;
struct testSSHData sshData4 = {
.nodename = "nosuchhost",
.path = "/tmp/socket",
.failConnect = true,
};
if (virtTestRun("SSH test 4", 1, testSocketSSH, &sshData4) < 0)
ret = -1;
struct testSSHData sshData5 = {
.nodename = "crashyhost",
.path = "/tmp/socket",
.expectOut = "crashyhost sh -c "
"'if 'nc' -q 2>&1 | grep \"requires an argument\" >/dev/null 2>&1; then "
"ARG=-q0;"
"else "
"ARG=;"
"fi;"
"'nc' $ARG -U /tmp/socket'\n",
.dieEarly = true,
};
if (virtTestRun("SSH test 5", 1, testSocketSSH, &sshData5) < 0)
ret = -1;
struct testSSHData sshData6 = {
.nodename = "example.com",
.path = "/tmp/socket",
.keyfile = "/root/.ssh/example_key",
.noVerify = true,
.expectOut = "-i /root/.ssh/example_key -o StrictHostKeyChecking=no example.com sh -c '"
"if 'nc' -q 2>&1 | grep \"requires an argument\" >/dev/null 2>&1; then "
"ARG=-q0;"
"else "
"ARG=;"
"fi;"
"'nc' $ARG -U /tmp/socket'\n",
};
if (virtTestRun("SSH test 6", 1, testSocketSSH, &sshData6) < 0)
ret = -1;
struct testSSHData sshData7 = {
.nodename = "somehost",
.netcat = "nc -4",
.path = "/tmp/socket",
.expectOut = "somehost sh -c 'if ''nc -4'' -q 2>&1 | grep \"requires an argument\" >/dev/null 2>&1; then "
"ARG=-q0;"
"else "
"ARG=;"
"fi;"
"''nc -4'' $ARG -U /tmp/socket'\n",
};
if (virtTestRun("SSH test 7", 1, testSocketSSH, &sshData7) < 0)
ret = -1;
#endif
return ret==0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
VIRT_TEST_MAIN(mymain)
|