/* SCTP kernel Implementation
* (C) Copyright IBM Corp. 2003
* Copyright (c) 1999-2001 Motorola, Inc.
*
* This file is part of the SCTP kernel Implementation
*
* The SCTP implementation is free software;
* you can redistribute it and/or modify it under the terms of
* the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* The SCTP implementation 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU CC; see the file COPYING. If not, write to
* the Free Software Foundation, 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Please send any bug reports or fixes you make to the
* email address(es):
* lksctp developers <lksctp-developers@lists.sourceforge.net>
*
* Or submit a bug report through the following website:
* http://www.sf.net/projects/lksctp
*
* Any bugs reported to us we will try to fix... any fixes shared will
* be incorporated into the next SCTP release.
*
* Written or modified by:
* Sridhar Samudrala <sri@us.ibm.com>
*/
/* This is a kernel test to verify the TCP-style socket interfaces. */
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/uio.h>
#include <sys/poll.h>
#include <netinet/in.h>
#include <errno.h>
#include <netinet/sctp.h>
#include <sctputil.h>
char *TCID = __FILE__;
int TST_TOTAL = 22;
int TST_CNT = 0;
#define MAX_CLIENTS 10
int
main(int argc, char *argv[])
{
int clt_sk[MAX_CLIENTS], accept_sk[MAX_CLIENTS];
int listen_sk, clt2_sk, accept2_sk;
sockaddr_storage_t clt_loop[MAX_CLIENTS];
sockaddr_storage_t svr_loop, accept_loop, clt2_loop;
socklen_t addrlen;
int error, i;
char *message = "hello, world!\n";
char msgbuf[100];
int pf_class;
struct pollfd poll_fd;
fd_set set;
struct msghdr outmessage;
char outcmsg[CMSG_SPACE(sizeof(struct sctp_sndrcvinfo))];
struct iovec out_iov;
struct cmsghdr *cmsg;
struct sctp_sndrcvinfo *sinfo;
struct msghdr inmessage;
char incmsg[CMSG_SPACE(sizeof(sctp_cmsg_data_t))];
char *big_buffer;
struct iovec iov;
/* Rather than fflush() throughout the code, set stdout to
* be unbuffered.
*/
setvbuf(stdout, NULL, _IONBF, 0);
/* Initialize the server and client addresses. */
#if TEST_V6
pf_class = PF_INET6;
svr_loop.v6.sin6_family = AF_INET6;
svr_loop.v6.sin6_addr = in6addr_loopback;
svr_loop.v6.sin6_port = htons(SCTP_TESTPORT_1);
for (i = 0; i < MAX_CLIENTS; i++) {
clt_loop[i].v6.sin6_family = AF_INET6;
clt_loop[i].v6.sin6_addr = in6addr_loopback;
clt_loop[i].v6.sin6_port = htons(SCTP_TESTPORT_2 + i);
}
clt2_loop.v6.sin6_family = AF_INET6;
clt2_loop.v6.sin6_addr = in6addr_loopback;
clt2_loop.v6.sin6_port = htons(SCTP_TESTPORT_2 + i);
#else
pf_class = PF_INET;
svr_loop.v4.sin_family = AF_INET;
svr_loop.v4.sin_addr.s_addr = SCTP_IP_LOOPBACK;
svr_loop.v4.sin_port = htons(SCTP_TESTPORT_1);
for (i = 0; i < MAX_CLIENTS; i++) {
clt_loop[i].v4.sin_family = AF_INET;
clt_loop[i].v4.sin_addr.s_addr = SCTP_IP_LOOPBACK;
clt_loop[i].v4.sin_port = htons(SCTP_TESTPORT_2 + i);
}
clt2_loop.v4.sin_family = AF_INET;
clt2_loop.v4.sin_addr.s_addr = SCTP_IP_LOOPBACK;
clt2_loop.v4.sin_port = htons(SCTP_TESTPORT_2 + i);
#endif
/* Create and bind the listening server socket. */
listen_sk = test_socket(pf_class, SOCK_STREAM, IPPROTO_SCTP);
test_bind(listen_sk, &svr_loop.sa, sizeof(svr_loop));
/* Mark listen_sk as being able to accept new associations. */
test_listen(listen_sk, MAX_CLIENTS-1);
/* Create and bind the client sockets. */
for (i = 0; i < MAX_CLIENTS; i++) {
clt_sk[i] = test_socket(pf_class, SOCK_STREAM, IPPROTO_SCTP);
test_bind(clt_sk[i], &clt_loop[i].sa, sizeof(clt_loop[i]));
}
clt2_sk = test_socket(pf_class, SOCK_STREAM, IPPROTO_SCTP);
test_bind(clt2_sk, &clt2_loop.sa, sizeof(clt2_loop));
addrlen = sizeof(accept_loop);
/* Try to do accept on a non-listening socket. It should fail. */
error = accept(clt_sk[0], &accept_loop.sa, &addrlen);
if ((-1 != error) && (EINVAL != errno))
tst_brkm(TBROK, tst_exit, "accept on non-listening socket "
"error:%d, errno:%d", error, errno);
tst_resm(TPASS, "accept on non-listening socket");
/* Try to do a connect from a listening socket. It should fail. */
error = connect(listen_sk, (struct sockaddr *)&clt_loop[0],
sizeof(clt_loop[0]));
if ((-1 != error) && (EISCONN != errno))
tst_brkm(TBROK, tst_exit, "connect to non-listening socket "
"error:%d, errno:%d", error, errno);
tst_resm(TPASS, "connect to non-listening socket");
/* Do a blocking connect from clt_sk's to listen_sk */
for (i = 0; i < MAX_CLIENTS; i++)
test_connect(clt_sk[i], &svr_loop.sa, sizeof(svr_loop));
tst_resm(TPASS, "connect to listening socket");
/* Verify that no more connect's can be done after the acceptq
* backlog has reached the max value.
*/
error = connect(clt2_sk, &svr_loop.sa, sizeof(svr_loop));
if ((-1 != error) && (ECONNREFUSED != errno))
tst_brkm(TBROK, tst_exit, "connect after max backlog "
"error:%d, errno:%d", error, errno);
tst_resm(TPASS, "connect after max backlog");
/* Extract the associations on the listening socket as new sockets. */
for (i = 0; i < MAX_CLIENTS; i++) {
poll_fd.fd = listen_sk;
poll_fd.events = POLLIN;
poll_fd.revents = 0;
error = poll(&poll_fd, 1, -1);
if ((1 != error) && (1 != poll_fd.revents))
tst_brkm(TBROK, tst_exit, "Unexpected return value "
"with poll, error:%d errno:%d, revents:%d",
error, errno, poll_fd.revents);
addrlen = sizeof(accept_loop);
accept_sk[i] = test_accept(listen_sk, &accept_loop.sa,
&addrlen);
}
tst_resm(TPASS, "accept from listening socket");
/* Try to do a connect on an established socket. It should fail. */
error = connect(accept_sk[0], &clt_loop[0].sa, sizeof(clt_loop[0]));
if ((-1 != error) || (EISCONN != errno))
tst_brkm(TBROK, tst_exit, "connect on an established socket "
"error:%d errno:%d", error, errno);
tst_resm(TPASS, "connect on an established socket");
/* Try to do accept on an established socket. It should fail. */
error = accept(accept_sk[0], &accept_loop.sa, &addrlen);
if ((-1 != error) && (EINVAL != errno))
tst_brkm(TBROK, tst_exit, "accept on an established socket "
"error:%d errno:%d", error, errno);
error = accept(clt_sk[0], &accept_loop.sa, &addrlen);
if ((-1 != error) && (EINVAL != errno))
tst_brkm(TBROK, tst_exit, "accept on an established socket "
"failure: error:%d errno:%d", error, errno);
tst_resm(TPASS, "accept on an established socket");
/* Send and receive a message from the client sockets to the accepted
* sockets.
*/
for (i = 0; i < MAX_CLIENTS; i++) {
test_send(clt_sk[i], message, strlen(message), 0);
test_recv(accept_sk[i], msgbuf, 100, 0);
}
tst_resm(TPASS, "client sockets -> accepted sockets");
/* Send and receive a message from the accepted sockets to the client
* sockets.
*/
for (i = 0; i < MAX_CLIENTS; i++) {
test_send(accept_sk[i], message, strlen(message), 0);
test_recv(clt_sk[i], msgbuf, 100, 0);
}
tst_resm(TPASS, "accepted sockets -> client sockets");
/* Sending a message on a listening socket should fail. */
error = send(listen_sk, message, strlen(message), MSG_NOSIGNAL);
if ((-1 != error) || (EPIPE != errno))
tst_brkm(TBROK, tst_exit, "send on a listening socket "
"error:%d, errno:%d", error, errno);
tst_resm(TPASS, "send on a listening socket");
/* Trying to receive a message on a listening socket should fail. */
error = recv(listen_sk, msgbuf, 100, 0);
if ((-1 != error) || (ENOTCONN != errno))
tst_brkm(TBROK, tst_exit, "recv on a listening socket "
"error:%d, errno:%d", error, errno);
tst_resm(TPASS, "recv on a listening socket");
/* TESTCASES for shutdown() */
errno = 0;
test_send(accept_sk[0], message, strlen(message), 0);
/* Enable ASSOC_CHANGE and SNDRCVINFO notifications. */
test_enable_assoc_change(clt_sk[0]);
/* Do a SHUT_WR on clt_sk[0] to disable any new sends. */
test_shutdown(clt_sk[0], SHUT_WR);
/* Reading on a socket that has received SHUTDOWN should return 0
* indicating EOF.
*/
error = recv(accept_sk[0], msgbuf, 100, 0);
if ((0 != error) || (0 != errno))
tst_brkm(TBROK, tst_exit, "recv on a SHUTDOWN received socket "
"error:%d errno:%d", error, errno);
tst_resm(TPASS, "recv on a SHUTDOWN received socket");
/* Read the pending message on clt_sk[0] that was received before
* SHUTDOWN call.
*/
test_recv(clt_sk[0], msgbuf, 100, 0);
/* Initialize inmessage for all receives. */
big_buffer = test_malloc(REALLY_BIG);
memset(&inmessage, 0, sizeof(inmessage));
iov.iov_base = big_buffer;
iov.iov_len = REALLY_BIG;
inmessage.msg_iov = &iov;
inmessage.msg_iovlen = 1;
inmessage.msg_control = incmsg;
inmessage.msg_controllen = sizeof(incmsg);
/* Receive the SHUTDOWN_COMP notification as they are enabled. */
error = test_recvmsg(clt_sk[0], &inmessage, MSG_WAITALL);
test_check_msg_notification(&inmessage, error,
sizeof(struct sctp_assoc_change),
SCTP_ASSOC_CHANGE, SCTP_SHUTDOWN_COMP);
tst_resm(TPASS, "recv SHUTDOWN_COMP notification on a SHUT_WR socket");
/* No more messages and the association is SHUTDOWN, should fail. */
error = recv(clt_sk[0], msgbuf, 100, 0);
if ((-1 != error) || (ENOTCONN != errno))
tst_brkm(TBROK, tst_exit, "recv on a SHUTDOWN sent socket "
"error:%d, errno:%d", error, errno);
tst_resm(TPASS, "recv on a SHUTDOWN sent socket");
errno = 0;
/* Do a SHUT_RD on clt_sk[1] to disable any new receives. */
test_shutdown(clt_sk[1], SHUT_RD);
error = recv(clt_sk[1], msgbuf, 100, 0);
if ((0 != error) || (0 != errno))
tst_brkm(TBROK, tst_exit, "recv on a SHUT_RD socket "
"error:%d, errno:%d", error, errno);
/* Sending a message on SHUT_RD socket. */
test_send(clt_sk[1], message, strlen(message), 0);
/* Receive the message sent on SHUT_RD socket. */
test_recv(accept_sk[1], msgbuf, 100, 0);
/* Send a message to the SHUT_RD socket. */
test_send(accept_sk[1], message, strlen(message), 0);
/* We should not receive the message as the socket is SHUT_RD */
error = recv(clt_sk[1], msgbuf, 100, 0);
if ((0 != error) || (0 != errno))
tst_brkm(TBROK, tst_exit, "recv on a SHUT_RD socket "
"error:%d, errno:%d", error, errno);
tst_resm(TPASS, "recv on a SHUT_RD socket");
/* Do a SHUT_RDWR on clt_sk[2] to disable any new sends/receives. */
test_shutdown(clt_sk[2], SHUT_RDWR);
error = recv(accept_sk[2], msgbuf, 100, 0);
if ((0 != error) || (0 != errno))
tst_brkm(TBROK, tst_exit, "recv on a SHUT_RDWR socket "
"error:%d, errno:%d", error, errno);
error = recv(clt_sk[2], msgbuf, 100, 0);
if ((0 != error) || (0 != errno))
tst_brkm(TBROK, tst_exit, "recv on a SHUT_RDWR socket "
"error:%d, errno:%d", error, errno);
tst_resm(TPASS, "recv on a SHUT_RDWR socket");
error = 0;
for (i = 0; i < MAX_CLIENTS; i++)
close(clt_sk[i]);
for (i = 0; i < MAX_CLIENTS; i++)
close(accept_sk[i]);
/* Test case to verify accept of a CLOSED association. */
/* Do a connect, send and a close to ESTABLISH and CLOSE an
* association on the listening socket.
*/
test_connect(clt2_sk, &svr_loop.sa, sizeof(svr_loop));
test_send(clt2_sk, message, strlen(message), 0);
close(clt2_sk);
FD_ZERO(&set);
FD_SET(listen_sk, &set);
error = select(listen_sk + 1, &set, NULL, NULL, NULL);
if (1 != error)
tst_brkm(TBROK, tst_exit, "select error:%d, "
"errno: %d", error, errno);
/* Now accept the CLOSED association waiting on the listening
* socket.
*/
accept2_sk = test_accept(listen_sk, &accept_loop.sa, &addrlen);
/* Receive the message sent before doing a close. */
test_recv(accept2_sk, msgbuf, 100, 0);
/* Receive EOF indication as there are no more messages and the
* socket is SHUTDOWN.
*/
error = recv(accept2_sk, msgbuf, 100, 0);
if ((0 != error) || (0 != errno))
tst_brkm(TBROK, tst_exit, "Unexpected error return on "
"recv(error:%d, errno:%d)", error, errno);
tst_resm(TPASS, "accept of a CLOSED association");
/* Trying to send a message over the CLOSED association should
* generate EPIPE.
*/
error = send(accept2_sk, message, strlen(message), MSG_NOSIGNAL);
if ((-1 != error) || (EPIPE != errno))
tst_brkm(TBROK, tst_exit, "send to a CLOSED association "
"error:%d, errno:%d", error, errno);
tst_resm(TPASS, "send to a CLOSED association");
error = 0;
close(accept2_sk);
/* Verify that auto-connect can be done on a TCP-style socket using
* sendto/sendmsg.
*/
clt2_sk = test_socket(pf_class, SOCK_STREAM, IPPROTO_SCTP);
test_bind(clt2_sk, &clt2_loop.sa, sizeof(clt2_loop));
/* Do a sendto() without a connect() */
test_sendto(clt2_sk, message, strlen(message), 0, &svr_loop.sa,
sizeof(svr_loop));
accept2_sk = test_accept(listen_sk, &accept_loop.sa, &addrlen);
test_recv(accept2_sk, msgbuf, 100, 0);
tst_resm(TPASS, "auto-connect using sendto");
outmessage.msg_name = &svr_loop;
outmessage.msg_namelen = sizeof(svr_loop);
outmessage.msg_iov = NULL;
outmessage.msg_iovlen = 0;
outmessage.msg_control = outcmsg;
outmessage.msg_controllen = sizeof(outcmsg);
outmessage.msg_flags = 0;
cmsg = CMSG_FIRSTHDR(&outmessage);
cmsg->cmsg_level = IPPROTO_SCTP;
cmsg->cmsg_type = SCTP_SNDRCV;
cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
outmessage.msg_controllen = cmsg->cmsg_len;
sinfo = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
memset(sinfo, 0x00, sizeof(struct sctp_sndrcvinfo));
/* Verify that SCTP_EOF cannot be used to shutdown an association
* on a TCP-style socket.
*/
sinfo->sinfo_flags |= SCTP_EOF;
error = sendmsg(clt2_sk, &outmessage, 0);
if ((-1 != error) || (EINVAL != errno))
tst_brkm(TBROK, tst_exit, "sendmsg with SCTP_EOF flag "
"error:%d, errno:%d", error, errno);
tst_resm(TPASS, "sendmsg with SCTP_EOF flag");
/* Verify that SCTP_ABORT cannot be used to abort an association
* on a TCP-style socket.
*/
sinfo->sinfo_flags |= SCTP_ABORT;
error = sendmsg(clt2_sk, &outmessage, 0);
if ((-1 != error) || (EINVAL != errno))
tst_brkm(TBROK, tst_exit, "sendmsg with SCTP_ABORT flag "
"error:%d, errno:%d", error, errno);
tst_resm(TPASS, "sendmsg with SCTP_ABORT flag");
/* Verify that a normal message can be sent using sendmsg. */
outmessage.msg_iov = &out_iov;
outmessage.msg_iovlen = 1;
out_iov.iov_base = message;
out_iov.iov_len = strlen(message) + 1;
sinfo->sinfo_flags = 0;
test_sendmsg(clt2_sk, &outmessage, 0, strlen(message)+1);
test_recv(accept2_sk, msgbuf, 100, 0);
tst_resm(TPASS, "sendmsg with no flags");
close(clt2_sk);
close(accept2_sk);
close(listen_sk);
/* Indicate successful completion. */
return 0;
}