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
|
/*
* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
* Copyright (c) 2015-2018 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <netinet/in.h>
#if defined IP_ADD_MEMBERSHIP && defined IPV6_ADD_MEMBERSHIP \
&& defined IPV6_JOIN_ANYCAST
# include <limits.h>
# include <stdio.h>
# include <unistd.h>
# include <sys/socket.h>
# include <arpa/inet.h>
# include <net/if.h>
#define multi4addr "224.0.0.3"
#define multi6addr "ff01::c"
#define interface "127.0.0.1"
int
main(void)
{
TAIL_ALLOC_OBJECT_CONST_PTR(struct ip_mreq, m4);
TAIL_ALLOC_OBJECT_CONST_PTR(struct ipv6_mreq, m6);
unsigned int i;
int rc;
inet_pton(AF_INET, multi4addr, &m4->imr_multiaddr);
inet_pton(AF_INET, interface, &m4->imr_interface);
inet_pton(AF_INET6, multi6addr, &m6->ipv6mr_multiaddr);
m6->ipv6mr_interface = ifindex_lo();
if (!m6->ipv6mr_interface)
perror_msg_and_skip("lo");
(void) close(0);
if (socket(AF_INET, SOCK_DGRAM, 0))
perror_msg_and_skip("socket");
struct {
const int level;
const char *const str_level;
const int name;
const char *str_name;
const void *const val;
unsigned int size;
const char *const addr;
} opts[] = {
{
ARG_STR(SOL_IP), ARG_STR(IP_ADD_MEMBERSHIP),
m4, sizeof(*m4),
"{imr_multiaddr=inet_addr(\"" multi4addr
"\"), imr_interface=inet_addr(\"" interface "\")}"
},
{
ARG_STR(SOL_IP), ARG_STR(IP_DROP_MEMBERSHIP),
m4, sizeof(*m4),
"{imr_multiaddr=inet_addr(\"" multi4addr
"\"), imr_interface=inet_addr(\"" interface "\")}"
},
{
ARG_STR(SOL_IPV6), ARG_STR(IPV6_ADD_MEMBERSHIP),
m6, sizeof(*m6),
"{inet_pton(AF_INET6, \"" multi6addr
"\", &ipv6mr_multiaddr)"
", ipv6mr_interface=" IFINDEX_LO_STR "}"
},
{
ARG_STR(SOL_IPV6), ARG_STR(IPV6_DROP_MEMBERSHIP),
m6, sizeof(*m6),
"{inet_pton(AF_INET6, \"" multi6addr
"\", &ipv6mr_multiaddr)"
", ipv6mr_interface=" IFINDEX_LO_STR "}"
},
{
ARG_STR(SOL_IPV6), ARG_STR(IPV6_JOIN_ANYCAST),
m6, sizeof(*m6),
"{inet_pton(AF_INET6, \"" multi6addr
"\", &ipv6mr_multiaddr)"
", ipv6mr_interface=" IFINDEX_LO_STR "}"
},
{
ARG_STR(SOL_IPV6), ARG_STR(IPV6_LEAVE_ANYCAST),
m6, sizeof(*m6),
"{inet_pton(AF_INET6, \"" multi6addr
"\", &ipv6mr_multiaddr)"
", ipv6mr_interface=" IFINDEX_LO_STR "}"
}
};
for (i = 0; i < ARRAY_SIZE(opts); ++i) {
/* optlen < 0, EINVAL */
rc = setsockopt(0, opts[i].level, opts[i].name,
opts[i].val, -1);
printf("setsockopt(0, %s, %s, %p, -1) = %s\n",
opts[i].str_level, opts[i].str_name,
opts[i].val, sprintrc(rc));
/* optlen < sizeof(struct), EINVAL */
rc = setsockopt(0, opts[i].level, opts[i].name,
opts[i].val, opts[i].size - 1);
printf("setsockopt(0, %s, %s, %p, %u) = %s\n",
opts[i].str_level, opts[i].str_name,
opts[i].val, opts[i].size - 1, sprintrc(rc));
/* optval EFAULT */
rc = setsockopt(0, opts[i].level, opts[i].name,
opts[i].val + 1, opts[i].size);
printf("setsockopt(0, %s, %s, %p, %u) = %s\n",
opts[i].str_level, opts[i].str_name,
opts[i].val + 1, opts[i].size, sprintrc(rc));
/* classic */
rc = setsockopt(0, opts[i].level, opts[i].name,
opts[i].val, opts[i].size);
printf("setsockopt(0, %s, %s, %s, %u) = %s\n",
opts[i].str_level, opts[i].str_name,
opts[i].addr, opts[i].size, sprintrc(rc));
/* optlen > sizeof(struct), shortened */
rc = setsockopt(0, opts[i].level, opts[i].name,
opts[i].val, INT_MAX);
printf("setsockopt(0, %s, %s, %s, %u) = %s\n",
opts[i].str_level, opts[i].str_name,
opts[i].addr, INT_MAX, sprintrc(rc));
}
puts("+++ exited with 0 +++");
return 0;
}
#else
SKIP_MAIN_UNDEFINED("IP_ADD_MEMBERSHIP && IPV6_ADD_MEMBERSHIP"
" && IPV6_JOIN_ANYCAST")
#endif
|
