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
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
/*
* This file is part of net-yy-inet strace test.
*
* Copyright (c) 2014-2016 Dmitry V. Levin <ldv@altlinux.org>
* Copyright (c) 2016-2018 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <assert.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <arpa/inet.h>
#include "accept_compat.h"
#ifndef ADDR_FAMILY
# define ADDR_FAMILY_FIELD sin_family
# define ADDR_FAMILY AF_INET
# define AF_STR "AF_INET"
# define LOOPBACK_FIELD .sin_addr.s_addr = htonl(INADDR_LOOPBACK)
# define LOOPBACK "127.0.0.1"
# define SOCKADDR_TYPE sockaddr_in
# define TCP_STR "TCP"
# define INPORT sin_port
# define INPORT_STR "sin_port"
# define INADDR_STR "sin_addr=inet_addr(\"" LOOPBACK "\")"
# define SA_FIELDS ""
#endif
int
main(void)
{
skip_if_unavailable("/proc/self/fd/");
const struct SOCKADDR_TYPE addr = {
.ADDR_FAMILY_FIELD = ADDR_FAMILY,
LOOPBACK_FIELD
};
struct sockaddr * const listen_sa = tail_memdup(&addr, sizeof(addr));
TAIL_ALLOC_OBJECT_CONST_PTR(socklen_t, len);
*len = sizeof(addr);
const int listen_fd = socket(ADDR_FAMILY, SOCK_STREAM, 0);
if (listen_fd < 0)
perror_msg_and_skip("socket");
const unsigned long listen_inode = inode_of_sockfd(listen_fd);
printf("socket(" AF_STR ", SOCK_STREAM, IPPROTO_IP) = %d<" TCP_STR
":[%lu]>\n",
listen_fd, listen_inode);
if (bind(listen_fd, listen_sa, *len))
perror_msg_and_skip("bind");
printf("bind(%d<" TCP_STR ":[%lu]>, {sa_family=" AF_STR ", " INPORT_STR
"=htons(0), " INADDR_STR SA_FIELDS "}, %u) = 0\n",
listen_fd, listen_inode, (unsigned) *len);
if (listen(listen_fd, 1))
perror_msg_and_skip("listen");
printf("listen(%d<" TCP_STR ":[%lu]>, 1) = 0\n",
listen_fd, listen_inode);
memset(listen_sa, 0, sizeof(addr));
*len = sizeof(addr);
if (getsockname(listen_fd, listen_sa, len))
perror_msg_and_fail("getsockname");
const unsigned int listen_port =
ntohs(((struct SOCKADDR_TYPE *) listen_sa)->INPORT);
printf("getsockname(%d<" TCP_STR ":[" LOOPBACK ":%u]>, {sa_family="
AF_STR ", " INPORT_STR "=htons(%u), " INADDR_STR SA_FIELDS "}"
", [%u]) = 0\n",
listen_fd, listen_port, listen_port, (unsigned) *len);
TAIL_ALLOC_OBJECT_CONST_PTR(unsigned int, optval);
*len = sizeof(*optval);
if (getsockopt(listen_fd, SOL_TCP, TCP_MAXSEG, optval, len))
perror_msg_and_fail("getsockopt");
printf("getsockopt(%d<" TCP_STR ":[" LOOPBACK ":%u]>, SOL_TCP, "
"TCP_MAXSEG, [%u], [%u]) = 0\n",
listen_fd, listen_port, *optval, (unsigned) *len);
const int connect_fd = socket(ADDR_FAMILY, SOCK_STREAM, 0);
if (connect_fd < 0)
perror_msg_and_fail("socket");
const unsigned long connect_inode = inode_of_sockfd(connect_fd);
printf("socket(" AF_STR ", SOCK_STREAM, IPPROTO_IP) = %d<" TCP_STR
":[%lu]>\n",
connect_fd, connect_inode);
*len = sizeof(addr);
if (connect(connect_fd, listen_sa, *len))
perror_msg_and_fail("connect");
printf("connect(%d<" TCP_STR ":[%lu]>, {sa_family=" AF_STR ", "
INPORT_STR "=htons(%u), " INADDR_STR SA_FIELDS "}, %u) = 0\n",
connect_fd, connect_inode, listen_port, (unsigned) *len);
struct sockaddr * const accept_sa = tail_alloc(sizeof(addr));
memset(accept_sa, 0, sizeof(addr));
*len = sizeof(addr);
const int accept_fd = do_accept(listen_fd, accept_sa, len);
if (accept_fd < 0)
perror_msg_and_fail("accept");
const unsigned int connect_port =
ntohs(((struct SOCKADDR_TYPE *) accept_sa)->INPORT);
printf("accept(%d<" TCP_STR ":[" LOOPBACK ":%u]>, {sa_family=" AF_STR
", " INPORT_STR "=htons(%u), " INADDR_STR SA_FIELDS "}"
", [%u]) = %d<" TCP_STR ":[" LOOPBACK ":%u->" LOOPBACK ":%u]>\n",
listen_fd, listen_port, connect_port, (unsigned) *len,
accept_fd, listen_port, connect_port);
memset(accept_sa, 0, sizeof(addr));
*len = sizeof(addr);
if (getpeername(accept_fd, accept_sa, len))
perror_msg_and_fail("getpeername");
printf("getpeername(%d<" TCP_STR ":[" LOOPBACK ":%u->" LOOPBACK ":%u]>"
", {sa_family=" AF_STR ", " INPORT_STR "=htons(%u)"
", " INADDR_STR SA_FIELDS "}, [%u]) = 0\n",
accept_fd, listen_port, connect_port, connect_port,
(unsigned) *len);
memset(listen_sa, 0, sizeof(addr));
*len = sizeof(addr);
if (getpeername(connect_fd, listen_sa, len))
perror_msg_and_fail("getpeername");
printf("getpeername(%d<" TCP_STR ":[" LOOPBACK ":%u->" LOOPBACK ":%u]>"
", {sa_family=" AF_STR ", " INPORT_STR "=htons(%u)"
", " INADDR_STR SA_FIELDS "}, [%u]) = 0\n",
connect_fd, connect_port, listen_port, listen_port,
(unsigned) *len);
*len = sizeof(*optval);
if (setsockopt(connect_fd, SOL_TCP, TCP_MAXSEG, optval, *len))
perror_msg_and_fail("setsockopt");
printf("setsockopt(%d<" TCP_STR ":[" LOOPBACK ":%u->" LOOPBACK ":%u]>"
", SOL_TCP, TCP_MAXSEG, [%u], %u) = 0\n",
connect_fd, connect_port, listen_port, *optval,
(unsigned) *len);
char text[] = "text";
assert(sendto(connect_fd, text, sizeof(text) - 1,
MSG_DONTROUTE | MSG_DONTWAIT, NULL, 0) == sizeof(text) - 1);
printf("sendto(%d<" TCP_STR ":[" LOOPBACK ":%u->" LOOPBACK ":%u]>, "
"\"%s\", %u, MSG_DONTROUTE|MSG_DONTWAIT, NULL, 0) = %u\n",
connect_fd, connect_port, listen_port, text,
(unsigned) sizeof(text) - 1, (unsigned) sizeof(text) - 1);
assert(close(connect_fd) == 0);
printf("close(%d<" TCP_STR ":[" LOOPBACK ":%u->" LOOPBACK ":%u]>) = "
"0\n",
connect_fd, connect_port, listen_port);
assert(recvfrom(accept_fd, text, sizeof(text) - 1, MSG_WAITALL,
NULL, NULL) == sizeof(text) - 1);
printf("recvfrom(%d<" TCP_STR ":[" LOOPBACK ":%u->" LOOPBACK ":%u]>, "
"\"%s\", %u, MSG_WAITALL, NULL, NULL) = %u\n",
accept_fd, listen_port, connect_port, text,
(unsigned) sizeof(text) - 1, (unsigned) sizeof(text) - 1);
assert(close(accept_fd) == 0);
printf("close(%d<" TCP_STR ":[" LOOPBACK ":%u->" LOOPBACK ":%u]>) = "
"0\n",
accept_fd, listen_port, connect_port);
assert(close(listen_fd) == 0);
printf("close(%d<" TCP_STR ":[" LOOPBACK ":%u]>) = 0\n",
listen_fd, listen_port);
puts("+++ exited with 0 +++");
return 0;
}
|
