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/* SCTP kernel Implementation
* (C) Copyright IBM Corp. 2002, 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
*
* Written or modified by:
* Sridhar Samudrala <sri@us.ibm.com>
*
* Any bugs reported to us we will try to fix... any fixes shared will
* be incorporated into the next SCTP release.
*/
/* This is a kernel test to verify
* 1. MSG_EOR flag is set correctly when a single message is read using multiple
* recvmsg() calls.
* 2. MSG_PEEK support.
*/
#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 <netinet/in.h>
#include <errno.h>
#include <netinet/sctp.h>
#include <sctputil.h>
#include "tst_kernel.h"
char *TCID = __FILE__;
int TST_TOTAL = 2;
int TST_CNT = 0;
int
main(void)
{
int svr_sk, clt_sk;
struct sockaddr_in svr_loop, clt_loop;
struct iovec iov, out_iov;
struct msghdr inmessage, outmessage;
char incmsg[CMSG_SPACE(sizeof(sctp_cmsg_data_t))];
int error, msglen, i;
char *big_buffer;
void *msg_buf;
if (tst_check_driver("sctp"))
tst_brkm(TCONF, tst_exit, "sctp driver not available");
/* Rather than fflush() throughout the code, set stdout to
* be unbuffered.
*/
setvbuf(stdout, NULL, _IONBF, 0);
/* Initialize the server and client addresses. */
svr_loop.sin_family = AF_INET;
svr_loop.sin_addr.s_addr = SCTP_IP_LOOPBACK;
svr_loop.sin_port = htons(SCTP_TESTPORT_1);
clt_loop.sin_family = AF_INET;
clt_loop.sin_addr.s_addr = SCTP_IP_LOOPBACK;
clt_loop.sin_port = htons(SCTP_TESTPORT_2);
/* Create and bind the server socket. */
svr_sk = test_socket(AF_INET, SOCK_SEQPACKET, IPPROTO_SCTP);
test_bind(svr_sk, (struct sockaddr *)&svr_loop, sizeof(svr_loop));
/* Mark server socket as being able to accept new associations. */
test_listen(svr_sk, 1);
/* Create and bind the client sockets. */
clt_sk = test_socket(AF_INET, SOCK_SEQPACKET, IPPROTO_SCTP);
test_bind(clt_sk, (struct sockaddr *)&clt_loop, sizeof(clt_loop));
/* Enable ASSOC_CHANGE and SNDRCVINFO notifications. */
test_enable_assoc_change(svr_sk);
test_enable_assoc_change(clt_sk);
/* Send a message. This will create the association. */
memset(&outmessage, 0, sizeof(outmessage));
outmessage.msg_name = &svr_loop;
outmessage.msg_namelen = sizeof(svr_loop);
outmessage.msg_iov = &out_iov;
outmessage.msg_iovlen = 1;
msg_buf = test_build_msg(30000);
outmessage.msg_iov->iov_base = msg_buf;
outmessage.msg_iov->iov_len = 30000;
test_sendmsg(clt_sk, &outmessage, 0, 30000);
/* Initialize inmessage for all receives. */
big_buffer = test_malloc(REALLY_BIG);
memset(&inmessage, 0, sizeof(inmessage));
iov.iov_base = big_buffer;
iov.iov_len = 2000;
inmessage.msg_iov = &iov;
inmessage.msg_iovlen = 1;
inmessage.msg_control = incmsg;
/* Receive COMM_UP on clt_sk. */
inmessage.msg_controllen = sizeof(incmsg);
error = test_recvmsg(clt_sk, &inmessage, 0);
test_check_msg_notification(&inmessage, error,
sizeof(struct sctp_assoc_change),
SCTP_ASSOC_CHANGE, SCTP_COMM_UP);
/* Receive COMM_UP on svr_sk. */
inmessage.msg_controllen = sizeof(incmsg);
error = test_recvmsg(svr_sk, &inmessage, MSG_WAITALL);
test_check_msg_notification(&inmessage, error,
sizeof(struct sctp_assoc_change),
SCTP_ASSOC_CHANGE, SCTP_COMM_UP);
/* Read the 30000 byte message using multiple recvmsg() calls in a
* loop with 2000 bytes per read.
*/
for (i = 0, msglen = 30000; i < 15; i++, msglen-=2000) {
iov.iov_len = REALLY_BIG;
inmessage.msg_controllen = sizeof(incmsg);
error = test_recvmsg(svr_sk, &inmessage, MSG_PEEK);
test_check_msg_data(&inmessage, error, msglen,
MSG_EOR, 0, 0);
iov.iov_len = 2000;
inmessage.msg_controllen = sizeof(incmsg);
error = test_recvmsg(svr_sk, &inmessage, MSG_WAITALL);
test_check_msg_data(&inmessage, error, 2000,
((i==14)?MSG_EOR:0), 0, 0);
}
tst_resm(TPASS, "recvmsg with MSG_PEEK flag");
tst_resm(TPASS, "MSG_EOR in msg_flags set correctly");
close(svr_sk);
close(clt_sk);
/* Indicate successful completion. */
return 0;
}
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