tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0
2/* Copyright Amazon.com Inc. or its affiliates. */
3
4#include <sys/socket.h>
5#include <netinet/in.h>
6
7#include "../kselftest_harness.h"
8
9FIXTURE(bind_wildcard)
10{
11 struct sockaddr_in addr4;
12 struct sockaddr_in6 addr6;
13 int expected_errno;
14};
15
16FIXTURE_VARIANT(bind_wildcard)
17{
18 const __u32 addr4_const;
19 const struct in6_addr *addr6_const;
20};
21
22FIXTURE_VARIANT_ADD(bind_wildcard, v4_any_v6_any)
23{
24 .addr4_const = INADDR_ANY,
25 .addr6_const = &in6addr_any,
26};
27
28FIXTURE_VARIANT_ADD(bind_wildcard, v4_any_v6_local)
29{
30 .addr4_const = INADDR_ANY,
31 .addr6_const = &in6addr_loopback,
32};
33
34FIXTURE_VARIANT_ADD(bind_wildcard, v4_local_v6_any)
35{
36 .addr4_const = INADDR_LOOPBACK,
37 .addr6_const = &in6addr_any,
38};
39
40FIXTURE_VARIANT_ADD(bind_wildcard, v4_local_v6_local)
41{
42 .addr4_const = INADDR_LOOPBACK,
43 .addr6_const = &in6addr_loopback,
44};
45
46FIXTURE_SETUP(bind_wildcard)
47{
48 self->addr4.sin_family = AF_INET;
49 self->addr4.sin_port = htons(0);
50 self->addr4.sin_addr.s_addr = htonl(variant->addr4_const);
51
52 self->addr6.sin6_family = AF_INET6;
53 self->addr6.sin6_port = htons(0);
54 self->addr6.sin6_addr = *variant->addr6_const;
55
56 if (variant->addr6_const == &in6addr_any)
57 self->expected_errno = EADDRINUSE;
58 else
59 self->expected_errno = 0;
60}
61
62FIXTURE_TEARDOWN(bind_wildcard)
63{
64}
65
66void bind_sockets(struct __test_metadata *_metadata,
67 FIXTURE_DATA(bind_wildcard) *self,
68 struct sockaddr *addr1, socklen_t addrlen1,
69 struct sockaddr *addr2, socklen_t addrlen2)
70{
71 int fd[2];
72 int ret;
73
74 fd[0] = socket(addr1->sa_family, SOCK_STREAM, 0);
75 ASSERT_GT(fd[0], 0);
76
77 ret = bind(fd[0], addr1, addrlen1);
78 ASSERT_EQ(ret, 0);
79
80 ret = getsockname(fd[0], addr1, &addrlen1);
81 ASSERT_EQ(ret, 0);
82
83 ((struct sockaddr_in *)addr2)->sin_port = ((struct sockaddr_in *)addr1)->sin_port;
84
85 fd[1] = socket(addr2->sa_family, SOCK_STREAM, 0);
86 ASSERT_GT(fd[1], 0);
87
88 ret = bind(fd[1], addr2, addrlen2);
89 if (self->expected_errno) {
90 ASSERT_EQ(ret, -1);
91 ASSERT_EQ(errno, self->expected_errno);
92 } else {
93 ASSERT_EQ(ret, 0);
94 }
95
96 close(fd[1]);
97 close(fd[0]);
98}
99
100TEST_F(bind_wildcard, v4_v6)
101{
102 bind_sockets(_metadata, self,
103 (struct sockaddr *)&self->addr4, sizeof(self->addr6),
104 (struct sockaddr *)&self->addr6, sizeof(self->addr6));
105}
106
107TEST_F(bind_wildcard, v6_v4)
108{
109 bind_sockets(_metadata, self,
110 (struct sockaddr *)&self->addr6, sizeof(self->addr6),
111 (struct sockaddr *)&self->addr4, sizeof(self->addr4));
112}
113
114TEST_HARNESS_MAIN