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
|
/* ip_endpoint tests, for libreswan
*
* Copyright (C) 2000 Henry Spencer.
* Copyright (C) 2012 Paul Wouters <paul@libreswan.org>
* Copyright (C) 2018 Andrew Cagney
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Library General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <https://www.gnu.org/licenses/lgpl-2.1.txt>.
*
* 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 Library General Public
* License for more details.
*
*/
#include "ip_sockaddr.h"
#include "ip_info.h"
#include "ip_protocol.h"
#include "lswlog.h" /* for DBG_dump_thing() */
#include "ipcheck.h"
static void check_sockaddr_as_endpoint(void)
{
static const struct test {
int line;
const struct ip_info *afi;
const char *in;
uint8_t addr[16];
int port;
size_t size;
const char *err;
const char *out;
} tests[] = {
{ LN, &ipv4_info, "1.2.3.4:65535", { 1, 2, 3, 4, }, 65535, sizeof(struct sockaddr_in), NULL, NULL, },
{ LN, &ipv6_info, "[1::1]:65535", { [1] = 1, [15] = 1, }, 65535, sizeof(struct sockaddr_in6), NULL, NULL, },
/* far too small */
{ LN, &ipv4_info, "1.2.3.4:65535", { 1, 2, 3, 4, }, 65535, 0, "too small", "<unset-endpoint>", },
{ LN, &ipv6_info, "[1::1]:65535", { [1] = 1, [15] = 1, }, 65535, 0, "too small", "<unset-endpoint>", },
/* somewhat too small */
#define SIZE (offsetof(struct sockaddr, sa_family) + sizeof(sa_family_t))
{ LN, &ipv4_info, "1.2.3.4:65535", { 1, 2, 3, 4, }, 65535, SIZE, "address truncated", "<unset-endpoint>", },
{ LN, &ipv6_info, "[1::1]:65535", { [1] = 1, [15] = 1, }, 65535, SIZE, "address truncated", "<unset-endpoint>", },
/* too big */
{ LN, &ipv4_info, "1.2.3.4:65535", { 1, 2, 3, 4, }, 65535, sizeof(struct sockaddr_in) + 1, NULL, NULL, },
{ LN, &ipv6_info, "[1::1]:65535", { [1] = 1, [15] = 1, }, 65535, sizeof(struct sockaddr_in6) + 1, NULL, NULL, },
};
#undef SIZE
for (size_t ti = 0; ti < elemsof(tests); ti++) {
const struct test *t = &tests[ti];
const char *expect_out = t->out == NULL ? t->in : t->out;
PRINT("%s '%s' -> '%s' len=%zd", pri_afi(t->afi), t->in, expect_out, t->size);
/* construct a raw sockaddr */
struct {
ip_sockaddr sa;
char pad;
} raw = {
.sa = {
.len = t->size,
}
};
switch (t->afi->ip_version) {
case IPv4:
memcpy(&raw.sa.sa.sin.sin_addr, t->addr, sizeof(raw.sa.sa.sin.sin_addr));
raw.sa.sa.sin.sin_family = AF_INET;
raw.sa.sa.sin.sin_port = htons(t->port);
#ifdef USE_SOCKADDR_LEN
raw.sa.sa.sin.sin_len = sizeof(struct sockaddr_in);
#endif
break;
case IPv6:
memcpy(&raw.sa.sa.sin6.sin6_addr, t->addr, sizeof(raw.sa.sa.sin6.sin6_addr));
raw.sa.sa.sin6.sin6_family = AF_INET6;
raw.sa.sa.sin6.sin6_port = htons(t->port);
#ifdef USE_SOCKADDR_LEN
raw.sa.sa.sin6.sin6_len = sizeof(struct sockaddr_in6);
#endif
break;
}
/* sockaddr->endpoint */
ip_address address[1];
ip_port port;
ip_endpoint endpoint = unset_endpoint;
err_t err = sockaddr_to_address_port(&raw.sa.sa.sa, raw.sa.len,
address, &port);
if (err != NULL) {
if (t->err == NULL) {
FAIL("sockaddr_to_address_port() unexpectedly failed: %s", err);
} else if (!streq(err, t->err)) {
FAIL("sockaddr_to_address_port() returned error '%s', expecting '%s'", err, t->err);
}
if (!address_is_unset(address)) {
FAIL("sockaddr_to_address_port() failed yet address is set");
}
if (hport(port) != 0) {
FAIL("sockaddr_to_address_port() failed yet port is non-zero");
}
} else if (t->err != NULL) {
FAIL("sockaddr_to_address_port() should have failed: %s", t->err);
} else {
endpoint = endpoint_from_address_protocol_port(*address, &ip_protocol_udp, port);
CHECK_INFO(address);
}
/* as a string */
CHECK_STR(endpoint_buf, endpoint, expect_out, &endpoint);
/* endpoint->sockaddr */
ip_sockaddr esa = sockaddr_from_endpoint(endpoint);
if (err == NULL) {
if (esa.len == 0) {
FAIL("endpoint_to_sockaddr() returned %d, expecting non-zero",
esa.len);
} else if (esa.len > sizeof(esa.sa)) {
FAIL("endpoint_to_sockaddr() returned %d, expecting %zu or smaller",
esa.len, sizeof(esa.sa));
} else if (!memeq(&esa.sa, &raw.sa.sa, sizeof(esa.sa))) {
/* compare the entire buffer, not just size */
DBG_dump_thing("esa.sa", esa.sa);
DBG_dump_thing("sa.sa", raw.sa.sa);
FAIL("endpoint_to_sockaddr() returned a different value");
}
} else {
if (esa.len != 0) {
FAIL("endpoint_to_sockaddr() returned %d, expecting non-zero",
esa.len);
}
}
}
}
void ip_sockaddr_check(void)
{
check_sockaddr_as_endpoint();
}
|
