]>
git.ipfire.org Git - thirdparty/systemd.git/blob - src/test/test-socket-util.c
c3e9c2c45352a2f9476e014b64f95cd301a28950
1 /* SPDX-License-Identifier: LGPL-2.1+ */
3 This file is part of systemd
5 Copyright 2014 Ronny Chevalier
12 #include "alloc-util.h"
15 #include "in-addr-util.h"
18 #include "process-util.h"
19 #include "socket-util.h"
20 #include "string-util.h"
23 static void test_ifname_valid(void) {
24 assert(ifname_valid("foo"));
25 assert(ifname_valid("eth0"));
27 assert(!ifname_valid("0"));
28 assert(!ifname_valid("99"));
29 assert(ifname_valid("a99"));
30 assert(ifname_valid("99a"));
32 assert(!ifname_valid(NULL
));
33 assert(!ifname_valid(""));
34 assert(!ifname_valid(" "));
35 assert(!ifname_valid(" foo"));
36 assert(!ifname_valid("bar\n"));
37 assert(!ifname_valid("."));
38 assert(!ifname_valid(".."));
39 assert(ifname_valid("foo.bar"));
40 assert(!ifname_valid("x:y"));
42 assert(ifname_valid("xxxxxxxxxxxxxxx"));
43 assert(!ifname_valid("xxxxxxxxxxxxxxxx"));
46 static void test_socket_address_parse(void) {
49 assert_se(socket_address_parse(&a
, "junk") < 0);
50 assert_se(socket_address_parse(&a
, "192.168.1.1") < 0);
51 assert_se(socket_address_parse(&a
, ".168.1.1") < 0);
52 assert_se(socket_address_parse(&a
, "989.168.1.1") < 0);
53 assert_se(socket_address_parse(&a
, "192.168.1.1:65536") < 0);
54 assert_se(socket_address_parse(&a
, "192.168.1.1:0") < 0);
55 assert_se(socket_address_parse(&a
, "0") < 0);
56 assert_se(socket_address_parse(&a
, "65536") < 0);
58 assert_se(socket_address_parse(&a
, "65535") >= 0);
60 /* The checks below will pass even if ipv6 is disabled in
61 * kernel. The underlying glibc's inet_pton() is just a string
62 * parser and doesn't make any syscalls. */
64 assert_se(socket_address_parse(&a
, "[::1]") < 0);
65 assert_se(socket_address_parse(&a
, "[::1]8888") < 0);
66 assert_se(socket_address_parse(&a
, "::1") < 0);
67 assert_se(socket_address_parse(&a
, "[::1]:0") < 0);
68 assert_se(socket_address_parse(&a
, "[::1]:65536") < 0);
69 assert_se(socket_address_parse(&a
, "[a:b:1]:8888") < 0);
71 assert_se(socket_address_parse(&a
, "8888") >= 0);
72 assert_se(a
.sockaddr
.sa
.sa_family
== (socket_ipv6_is_supported() ? AF_INET6
: AF_INET
));
74 assert_se(socket_address_parse(&a
, "[2001:0db8:0000:85a3:0000:0000:ac1f:8001]:8888") >= 0);
75 assert_se(a
.sockaddr
.sa
.sa_family
== AF_INET6
);
77 assert_se(socket_address_parse(&a
, "[::1]:8888") >= 0);
78 assert_se(a
.sockaddr
.sa
.sa_family
== AF_INET6
);
80 assert_se(socket_address_parse(&a
, "192.168.1.254:8888") >= 0);
81 assert_se(a
.sockaddr
.sa
.sa_family
== AF_INET
);
83 assert_se(socket_address_parse(&a
, "/foo/bar") >= 0);
84 assert_se(a
.sockaddr
.sa
.sa_family
== AF_UNIX
);
86 assert_se(socket_address_parse(&a
, "@abstract") >= 0);
87 assert_se(a
.sockaddr
.sa
.sa_family
== AF_UNIX
);
89 assert_se(socket_address_parse(&a
, "vsock::1234") >= 0);
90 assert_se(a
.sockaddr
.sa
.sa_family
== AF_VSOCK
);
91 assert_se(socket_address_parse(&a
, "vsock:2:1234") >= 0);
92 assert_se(a
.sockaddr
.sa
.sa_family
== AF_VSOCK
);
93 assert_se(socket_address_parse(&a
, "vsock:2:1234x") < 0);
94 assert_se(socket_address_parse(&a
, "vsock:2x:1234") < 0);
95 assert_se(socket_address_parse(&a
, "vsock:2") < 0);
98 static void test_socket_address_parse_netlink(void) {
101 assert_se(socket_address_parse_netlink(&a
, "junk") < 0);
102 assert_se(socket_address_parse_netlink(&a
, "") < 0);
104 assert_se(socket_address_parse_netlink(&a
, "route") >= 0);
105 assert_se(socket_address_parse_netlink(&a
, "route 10") >= 0);
106 assert_se(a
.sockaddr
.sa
.sa_family
== AF_NETLINK
);
107 assert_se(a
.protocol
== NETLINK_ROUTE
);
109 /* With spaces and tabs */
110 assert_se(socket_address_parse_netlink(&a
, " kobject-uevent ") >= 0);
111 assert_se(socket_address_parse_netlink(&a
, " \t kobject-uevent \t 10 \t") >= 0);
112 assert_se(a
.sockaddr
.sa
.sa_family
== AF_NETLINK
);
113 assert_se(a
.protocol
== NETLINK_KOBJECT_UEVENT
);
115 assert_se(socket_address_parse_netlink(&a
, "kobject-uevent\t10") >= 0);
116 assert_se(a
.sockaddr
.sa
.sa_family
== AF_NETLINK
);
117 assert_se(a
.protocol
== NETLINK_KOBJECT_UEVENT
);
120 assert_se(socket_address_parse_netlink(&a
, "\xff") < 0);
123 static void test_socket_address_equal(void) {
127 assert_se(socket_address_parse(&a
, "192.168.1.1:8888") >= 0);
128 assert_se(socket_address_parse(&b
, "192.168.1.1:888") >= 0);
129 assert_se(!socket_address_equal(&a
, &b
));
131 assert_se(socket_address_parse(&a
, "192.168.1.1:8888") >= 0);
132 assert_se(socket_address_parse(&b
, "192.16.1.1:8888") >= 0);
133 assert_se(!socket_address_equal(&a
, &b
));
135 assert_se(socket_address_parse(&a
, "192.168.1.1:8888") >= 0);
136 assert_se(socket_address_parse(&b
, "8888") >= 0);
137 assert_se(!socket_address_equal(&a
, &b
));
139 assert_se(socket_address_parse(&a
, "192.168.1.1:8888") >= 0);
140 assert_se(socket_address_parse(&b
, "/foo/bar/") >= 0);
141 assert_se(!socket_address_equal(&a
, &b
));
143 assert_se(socket_address_parse(&a
, "192.168.1.1:8888") >= 0);
144 assert_se(socket_address_parse(&b
, "192.168.1.1:8888") >= 0);
145 assert_se(socket_address_equal(&a
, &b
));
147 assert_se(socket_address_parse(&a
, "/foo/bar") >= 0);
148 assert_se(socket_address_parse(&b
, "/foo/bar") >= 0);
149 assert_se(socket_address_equal(&a
, &b
));
151 assert_se(socket_address_parse(&a
, "[::1]:8888") >= 0);
152 assert_se(socket_address_parse(&b
, "[::1]:8888") >= 0);
153 assert_se(socket_address_equal(&a
, &b
));
155 assert_se(socket_address_parse(&a
, "@abstract") >= 0);
156 assert_se(socket_address_parse(&b
, "@abstract") >= 0);
157 assert_se(socket_address_equal(&a
, &b
));
159 assert_se(socket_address_parse_netlink(&a
, "firewall") >= 0);
160 assert_se(socket_address_parse_netlink(&b
, "firewall") >= 0);
161 assert_se(socket_address_equal(&a
, &b
));
163 assert_se(socket_address_parse(&a
, "vsock:2:1234") >= 0);
164 assert_se(socket_address_parse(&b
, "vsock:2:1234") >= 0);
165 assert_se(socket_address_equal(&a
, &b
));
166 assert_se(socket_address_parse(&b
, "vsock:2:1235") >= 0);
167 assert_se(!socket_address_equal(&a
, &b
));
168 assert_se(socket_address_parse(&b
, "vsock:3:1234") >= 0);
169 assert_se(!socket_address_equal(&a
, &b
));
172 static void test_socket_address_get_path(void) {
175 assert_se(socket_address_parse(&a
, "192.168.1.1:8888") >= 0);
176 assert_se(!socket_address_get_path(&a
));
178 assert_se(socket_address_parse(&a
, "@abstract") >= 0);
179 assert_se(!socket_address_get_path(&a
));
181 assert_se(socket_address_parse(&a
, "[::1]:8888") >= 0);
182 assert_se(!socket_address_get_path(&a
));
184 assert_se(socket_address_parse(&a
, "/foo/bar") >= 0);
185 assert_se(streq(socket_address_get_path(&a
), "/foo/bar"));
187 assert_se(socket_address_parse(&a
, "vsock:2:1234") >= 0);
188 assert_se(!socket_address_get_path(&a
));
191 static void test_socket_address_is(void) {
194 assert_se(socket_address_parse(&a
, "192.168.1.1:8888") >= 0);
195 assert_se(socket_address_is(&a
, "192.168.1.1:8888", SOCK_STREAM
));
196 assert_se(!socket_address_is(&a
, "route", SOCK_STREAM
));
197 assert_se(!socket_address_is(&a
, "192.168.1.1:8888", SOCK_RAW
));
200 static void test_socket_address_is_netlink(void) {
203 assert_se(socket_address_parse_netlink(&a
, "route 10") >= 0);
204 assert_se(socket_address_is_netlink(&a
, "route 10"));
205 assert_se(!socket_address_is_netlink(&a
, "192.168.1.1:8888"));
206 assert_se(!socket_address_is_netlink(&a
, "route 1"));
209 static void test_in_addr_is_null(void) {
211 union in_addr_union i
= {};
213 assert_se(in_addr_is_null(AF_INET
, &i
) == true);
214 assert_se(in_addr_is_null(AF_INET6
, &i
) == true);
216 i
.in
.s_addr
= 0x1000000;
217 assert_se(in_addr_is_null(AF_INET
, &i
) == false);
218 assert_se(in_addr_is_null(AF_INET6
, &i
) == false);
220 assert_se(in_addr_is_null(-1, &i
) == -EAFNOSUPPORT
);
223 static void test_in_addr_prefix_intersect_one(unsigned f
, const char *a
, unsigned apl
, const char *b
, unsigned bpl
, int result
) {
224 union in_addr_union ua
, ub
;
226 assert_se(in_addr_from_string(f
, a
, &ua
) >= 0);
227 assert_se(in_addr_from_string(f
, b
, &ub
) >= 0);
229 assert_se(in_addr_prefix_intersect(f
, &ua
, apl
, &ub
, bpl
) == result
);
232 static void test_in_addr_prefix_intersect(void) {
234 test_in_addr_prefix_intersect_one(AF_INET
, "255.255.255.255", 32, "255.255.255.254", 32, 0);
235 test_in_addr_prefix_intersect_one(AF_INET
, "255.255.255.255", 0, "255.255.255.255", 32, 1);
236 test_in_addr_prefix_intersect_one(AF_INET
, "0.0.0.0", 0, "47.11.8.15", 32, 1);
238 test_in_addr_prefix_intersect_one(AF_INET
, "1.1.1.1", 24, "1.1.1.1", 24, 1);
239 test_in_addr_prefix_intersect_one(AF_INET
, "2.2.2.2", 24, "1.1.1.1", 24, 0);
241 test_in_addr_prefix_intersect_one(AF_INET
, "1.1.1.1", 24, "1.1.1.127", 25, 1);
242 test_in_addr_prefix_intersect_one(AF_INET
, "1.1.1.1", 24, "1.1.1.127", 26, 1);
243 test_in_addr_prefix_intersect_one(AF_INET
, "1.1.1.1", 25, "1.1.1.127", 25, 1);
244 test_in_addr_prefix_intersect_one(AF_INET
, "1.1.1.1", 25, "1.1.1.255", 25, 0);
246 test_in_addr_prefix_intersect_one(AF_INET6
, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 128, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffe", 128, 0);
247 test_in_addr_prefix_intersect_one(AF_INET6
, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 0, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 128, 1);
248 test_in_addr_prefix_intersect_one(AF_INET6
, "::", 0, "beef:beef:beef:beef:beef:beef:beef:beef", 128, 1);
250 test_in_addr_prefix_intersect_one(AF_INET6
, "1::2", 64, "1::2", 64, 1);
251 test_in_addr_prefix_intersect_one(AF_INET6
, "2::2", 64, "1::2", 64, 0);
253 test_in_addr_prefix_intersect_one(AF_INET6
, "1::1", 120, "1::007f", 121, 1);
254 test_in_addr_prefix_intersect_one(AF_INET6
, "1::1", 120, "1::007f", 122, 1);
255 test_in_addr_prefix_intersect_one(AF_INET6
, "1::1", 121, "1::007f", 121, 1);
256 test_in_addr_prefix_intersect_one(AF_INET6
, "1::1", 121, "1::00ff", 121, 0);
259 static void test_in_addr_prefix_next_one(unsigned f
, const char *before
, unsigned pl
, const char *after
) {
260 union in_addr_union ubefore
, uafter
, t
;
262 assert_se(in_addr_from_string(f
, before
, &ubefore
) >= 0);
265 assert_se((in_addr_prefix_next(f
, &t
, pl
) > 0) == !!after
);
268 assert_se(in_addr_from_string(f
, after
, &uafter
) >= 0);
269 assert_se(in_addr_equal(f
, &t
, &uafter
) > 0);
273 static void test_in_addr_prefix_next(void) {
275 test_in_addr_prefix_next_one(AF_INET
, "192.168.0.0", 24, "192.168.1.0");
276 test_in_addr_prefix_next_one(AF_INET
, "192.168.0.0", 16, "192.169.0.0");
277 test_in_addr_prefix_next_one(AF_INET
, "192.168.0.0", 20, "192.168.16.0");
279 test_in_addr_prefix_next_one(AF_INET
, "0.0.0.0", 32, "0.0.0.1");
280 test_in_addr_prefix_next_one(AF_INET
, "255.255.255.255", 32, NULL
);
281 test_in_addr_prefix_next_one(AF_INET
, "255.255.255.0", 24, NULL
);
283 test_in_addr_prefix_next_one(AF_INET6
, "4400::", 128, "4400::0001");
284 test_in_addr_prefix_next_one(AF_INET6
, "4400::", 120, "4400::0100");
285 test_in_addr_prefix_next_one(AF_INET6
, "4400::", 127, "4400::0002");
286 test_in_addr_prefix_next_one(AF_INET6
, "4400::", 8, "4500::");
287 test_in_addr_prefix_next_one(AF_INET6
, "4400::", 7, "4600::");
289 test_in_addr_prefix_next_one(AF_INET6
, "::", 128, "::1");
291 test_in_addr_prefix_next_one(AF_INET6
, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 128, NULL
);
292 test_in_addr_prefix_next_one(AF_INET6
, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ff00", 120, NULL
);
296 static void test_in_addr_to_string_one(int f
, const char *addr
) {
297 union in_addr_union ua
;
298 _cleanup_free_
char *r
= NULL
;
300 assert_se(in_addr_from_string(f
, addr
, &ua
) >= 0);
301 assert_se(in_addr_to_string(f
, &ua
, &r
) >= 0);
302 printf("test_in_addr_to_string_one: %s == %s\n", addr
, r
);
303 assert_se(streq(addr
, r
));
306 static void test_in_addr_to_string(void) {
307 test_in_addr_to_string_one(AF_INET
, "192.168.0.1");
308 test_in_addr_to_string_one(AF_INET
, "10.11.12.13");
309 test_in_addr_to_string_one(AF_INET6
, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff");
310 test_in_addr_to_string_one(AF_INET6
, "::1");
311 test_in_addr_to_string_one(AF_INET6
, "fe80::");
314 static void test_in_addr_ifindex_to_string_one(int f
, const char *a
, int ifindex
, const char *b
) {
315 _cleanup_free_
char *r
= NULL
;
316 union in_addr_union ua
, uuaa
;
319 assert_se(in_addr_from_string(f
, a
, &ua
) >= 0);
320 assert_se(in_addr_ifindex_to_string(f
, &ua
, ifindex
, &r
) >= 0);
321 printf("test_in_addr_ifindex_to_string_one: %s == %s\n", b
, r
);
322 assert_se(streq(b
, r
));
324 assert_se(in_addr_ifindex_from_string_auto(b
, &ff
, &uuaa
, &ifindex2
) >= 0);
326 assert_se(in_addr_equal(f
, &ua
, &uuaa
));
327 assert_se(ifindex2
== ifindex
|| ifindex2
== 0);
330 static void test_in_addr_ifindex_to_string(void) {
331 test_in_addr_ifindex_to_string_one(AF_INET
, "192.168.0.1", 7, "192.168.0.1");
332 test_in_addr_ifindex_to_string_one(AF_INET
, "10.11.12.13", 9, "10.11.12.13");
333 test_in_addr_ifindex_to_string_one(AF_INET6
, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 10, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff");
334 test_in_addr_ifindex_to_string_one(AF_INET6
, "::1", 11, "::1");
335 test_in_addr_ifindex_to_string_one(AF_INET6
, "fe80::", 12, "fe80::%12");
336 test_in_addr_ifindex_to_string_one(AF_INET6
, "fe80::", 0, "fe80::");
337 test_in_addr_ifindex_to_string_one(AF_INET6
, "fe80::14", 12, "fe80::14%12");
338 test_in_addr_ifindex_to_string_one(AF_INET6
, "fe80::15", -7, "fe80::15");
339 test_in_addr_ifindex_to_string_one(AF_INET6
, "fe80::16", LOOPBACK_IFINDEX
, "fe80::16%1");
342 static void test_in_addr_ifindex_from_string_auto(void) {
344 union in_addr_union ua
;
346 /* Most in_addr_ifindex_from_string_auto() invocations have already been tested above, but let's test some more */
348 assert_se(in_addr_ifindex_from_string_auto("fe80::17", &family
, &ua
, &ifindex
) >= 0);
349 assert_se(family
== AF_INET6
);
350 assert_se(ifindex
== 0);
352 assert_se(in_addr_ifindex_from_string_auto("fe80::18%19", &family
, &ua
, &ifindex
) >= 0);
353 assert_se(family
== AF_INET6
);
354 assert_se(ifindex
== 19);
356 assert_se(in_addr_ifindex_from_string_auto("fe80::18%lo", &family
, &ua
, &ifindex
) >= 0);
357 assert_se(family
== AF_INET6
);
358 assert_se(ifindex
== LOOPBACK_IFINDEX
);
360 assert_se(in_addr_ifindex_from_string_auto("fe80::19%thisinterfacecantexist", &family
, &ua
, &ifindex
) == -ENODEV
);
363 static void test_sockaddr_equal(void) {
364 union sockaddr_union a
= {
365 .in
.sin_family
= AF_INET
,
367 .in
.sin_addr
.s_addr
= htobe32(INADDR_ANY
),
369 union sockaddr_union b
= {
370 .in
.sin_family
= AF_INET
,
372 .in
.sin_addr
.s_addr
= htobe32(INADDR_ANY
),
374 union sockaddr_union c
= {
375 .in
.sin_family
= AF_INET
,
377 .in
.sin_addr
.s_addr
= htobe32(1234),
379 union sockaddr_union d
= {
380 .in6
.sin6_family
= AF_INET6
,
382 .in6
.sin6_addr
= IN6ADDR_ANY_INIT
,
384 union sockaddr_union e
= {
385 .vm
.svm_family
= AF_VSOCK
,
387 .vm
.svm_cid
= VMADDR_CID_ANY
,
389 assert_se(sockaddr_equal(&a
, &a
));
390 assert_se(sockaddr_equal(&a
, &b
));
391 assert_se(sockaddr_equal(&d
, &d
));
392 assert_se(sockaddr_equal(&e
, &e
));
393 assert_se(!sockaddr_equal(&a
, &c
));
394 assert_se(!sockaddr_equal(&b
, &c
));
395 assert_se(!sockaddr_equal(&a
, &e
));
398 static void test_sockaddr_un_len(void) {
399 static const struct sockaddr_un fs
= {
400 .sun_family
= AF_UNIX
,
401 .sun_path
= "/foo/bar/waldo",
404 static const struct sockaddr_un abstract
= {
405 .sun_family
= AF_UNIX
,
406 .sun_path
= "\0foobar",
409 assert_se(SOCKADDR_UN_LEN(fs
) == offsetof(struct sockaddr_un
, sun_path
) + strlen(fs
.sun_path
));
410 assert_se(SOCKADDR_UN_LEN(abstract
) == offsetof(struct sockaddr_un
, sun_path
) + 1 + strlen(abstract
.sun_path
+ 1));
413 static void test_in_addr_is_multicast(void) {
414 union in_addr_union a
, b
;
417 assert_se(in_addr_from_string_auto("192.168.3.11", &f
, &a
) >= 0);
418 assert_se(in_addr_is_multicast(f
, &a
) == 0);
420 assert_se(in_addr_from_string_auto("224.0.0.1", &f
, &a
) >= 0);
421 assert_se(in_addr_is_multicast(f
, &a
) == 1);
423 assert_se(in_addr_from_string_auto("FF01:0:0:0:0:0:0:1", &f
, &b
) >= 0);
424 assert_se(in_addr_is_multicast(f
, &b
) == 1);
426 assert_se(in_addr_from_string_auto("2001:db8::c:69b:aeff:fe53:743e", &f
, &b
) >= 0);
427 assert_se(in_addr_is_multicast(f
, &b
) == 0);
430 static void test_getpeercred_getpeergroups(void) {
433 r
= safe_fork("(getpeercred)", FORK_DEATHSIG
|FORK_LOG
|FORK_WAIT
, NULL
);
437 static const gid_t gids
[] = { 3, 4, 5, 6, 7 };
439 _cleanup_free_ gid_t
*peer_groups
= NULL
;
446 if (geteuid() == 0) {
449 test_gids
= (gid_t
*) gids
;
450 n_test_gids
= ELEMENTSOF(gids
);
452 assert_se(setgroups(n_test_gids
, test_gids
) >= 0);
453 assert_se(setresgid(test_gid
, test_gid
, test_gid
) >= 0);
454 assert_se(setresuid(test_uid
, test_uid
, test_uid
) >= 0);
462 ngroups_max
= sysconf(_SC_NGROUPS_MAX
);
463 assert(ngroups_max
> 0);
465 test_gids
= newa(gid_t
, ngroups_max
);
467 r
= getgroups(ngroups_max
, test_gids
);
469 n_test_gids
= (size_t) r
;
472 assert_se(socketpair(AF_UNIX
, SOCK_STREAM
, 0, pair
) >= 0);
474 assert_se(getpeercred(pair
[0], &ucred
) >= 0);
476 assert_se(ucred
.uid
== test_uid
);
477 assert_se(ucred
.gid
== test_gid
);
478 assert_se(ucred
.pid
== getpid_cached());
480 r
= getpeergroups(pair
[0], &peer_groups
);
481 assert_se(r
>= 0 || IN_SET(r
, -EOPNOTSUPP
, -ENOPROTOOPT
));
484 assert_se((size_t) r
== n_test_gids
);
485 assert_se(memcmp(peer_groups
, test_gids
, sizeof(gid_t
) * n_test_gids
) == 0);
488 safe_close_pair(pair
);
492 int main(int argc
, char *argv
[]) {
494 log_set_max_level(LOG_DEBUG
);
498 test_socket_address_parse();
499 test_socket_address_parse_netlink();
500 test_socket_address_equal();
501 test_socket_address_get_path();
502 test_socket_address_is();
503 test_socket_address_is_netlink();
505 test_in_addr_is_null();
506 test_in_addr_prefix_intersect();
507 test_in_addr_prefix_next();
508 test_in_addr_to_string();
509 test_in_addr_ifindex_to_string();
510 test_in_addr_ifindex_from_string_auto();
512 test_sockaddr_equal();
514 test_sockaddr_un_len();
516 test_in_addr_is_multicast();
518 test_getpeercred_getpeergroups();