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
|
/*
* Copyright (c) 2020-2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Function.h>
#include <AK/IPv4Address.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
#include <net/if.h>
#include <netinet/in.h>
#include <stdio.h>
#include <string.h>
#include <sys/socket.h>
static void test_invalid(int);
static void test_no_route(int);
static void test_valid(int);
static void test_send(int);
static ErrorOr<void> test(Function<void(int)> test_fn)
{
auto fd = TRY(Core::System::socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP));
test_fn(fd);
// be a responsible boi
TRY(Core::System::close(fd));
return {};
}
ErrorOr<int> serenity_main(Main::Arguments)
{
TRY(test(test_invalid));
TRY(test(test_valid));
TRY(test(test_no_route));
TRY(test(test_send));
return 0;
}
void test_invalid(int fd)
{
// bind to an interface that does not exist
char buf[IFNAMSIZ];
socklen_t buflen = IFNAMSIZ;
memcpy(buf, "foodev", 7);
auto setsockopt_maybe_error = Core::System::setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, buf, buflen);
if (setsockopt_maybe_error.is_error()) {
warnln("setsockopt(SO_BINDTODEVICE) :: invalid (Should fail with ENODEV).");
puts("PASS invalid");
} else {
puts("FAIL invalid");
}
}
void test_valid(int fd)
{
// bind to an interface that exists
char buf[IFNAMSIZ];
socklen_t buflen = IFNAMSIZ;
memcpy(buf, "loop", 5);
auto setsockopt_maybe_error = Core::System::setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, buf, buflen);
if (setsockopt_maybe_error.is_error()) {
warnln("setsockopt(SO_BINDTODEVICE) :: valid");
puts("FAIL valid");
} else {
puts("PASS valid");
}
}
void test_no_route(int fd)
{
// bind to an interface that cannot deliver
char buf[IFNAMSIZ];
socklen_t buflen = IFNAMSIZ;
memcpy(buf, "loop", 5);
auto setsockopt_maybe_error = Core::System::setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, buf, buflen);
if (setsockopt_maybe_error.is_error()) {
warnln("setsockopt(SO_BINDTODEVICE) :: no_route");
puts("FAIL no_route");
return;
}
sockaddr_in sin;
memset(&sin, 0, sizeof(sin));
sin.sin_addr.s_addr = IPv4Address { 10, 0, 2, 15 }.to_u32();
sin.sin_port = 8080;
sin.sin_family = AF_INET;
auto bind_maybe_error = Core::System::bind(fd, (sockaddr*)&sin, sizeof(sin));
if (bind_maybe_error.is_error()) {
warnln("bind() :: no_route");
puts("FAIL no_route");
return;
}
auto sendto_maybe_error = Core::System::sendto(fd, "TEST", 4, 0, (sockaddr*)&sin, sizeof(sin));
if (sendto_maybe_error.is_error()) {
warnln("sendto() :: no_route (Should fail with EHOSTUNREACH)");
puts("PASS no_route");
} else
puts("FAIL no_route");
}
void test_send(int fd)
{
// bind to an interface that cannot deliver
char buf[IFNAMSIZ];
socklen_t buflen = IFNAMSIZ;
// FIXME: Look up the proper device name instead of hard-coding it
memcpy(buf, "ep0s7", 6);
auto setsockopt_maybe_error = Core::System::setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, buf, buflen);
if (setsockopt_maybe_error.is_error()) {
warnln("setsockopt(SO_BINDTODEVICE) :: send");
puts("FAIL send");
return;
}
sockaddr_in sin;
memset(&sin, 0, sizeof(sin));
sin.sin_addr.s_addr = IPv4Address { 10, 0, 2, 15 }.to_u32();
sin.sin_port = 8080;
sin.sin_family = AF_INET;
auto bind_maybe_error = Core::System::bind(fd, (sockaddr*)&sin, sizeof(sin));
if (bind_maybe_error.is_error()) {
warnln("bind() :: send");
puts("FAIL send");
return;
}
auto sendto_maybe_error = Core::System::sendto(fd, "TEST", 4, 0, (sockaddr*)&sin, sizeof(sin));
if (sendto_maybe_error.is_error()) {
warnln("sendto() :: send");
puts("FAIL send");
return;
}
puts("PASS send");
}
|
