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
|
/*
* This file is part of net-yy-inet strace test.
*
* Copyright (c) 2014-2016 Dmitry V. Levin <ldv@strace.io>
* Copyright (c) 2016-2024 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <assert.h>
#include <fcntl.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>
#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");
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 = accept4(listen_fd, accept_sa, len, O_CLOEXEC);
if (accept_fd < 0)
perror_msg_and_fail("accept");
const unsigned int connect_port =
ntohs(((struct SOCKADDR_TYPE *) accept_sa)->INPORT);
printf("accept4(%d<" TCP_STR ":[" LOOPBACK ":%u]>, {sa_family=" AF_STR
", " INPORT_STR "=htons(%u), " INADDR_STR SA_FIELDS "}, [%u]"
", SOCK_CLOEXEC) = %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;
}
|