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300 lines
9.5 KiB
300 lines
9.5 KiB
/* SCTP kernel Implementation
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* (C) Copyright IBM Corp. 2001, 2003
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* Copyright (c) 1999-2000 Cisco, Inc.
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* Copyright (c) 1999-2001 Motorola, Inc.
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* Copyright (c) 2001 Intel Corp.
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* Copyright (c) 2001 Nokia, Inc.
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*
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* The SCTP implementation is free software;
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* you can redistribute it and/or modify it under the terms of
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* the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* The SCTP implementation is distributed in the hope that it
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* will be useful, but WITHOUT ANY WARRANTY; without even the implied
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* ************************
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU CC; see the file COPYING. If not, write to
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* the Free Software Foundation, 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Please send any bug reports or fixes you make to the
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* email address(es):
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* lksctp developers <lksctp-developers@lists.sourceforge.net>
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*
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* Or submit a bug report through the following website:
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* http://www.sf.net/projects/lksctp
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*
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* Any bugs reported to us we will try to fix... any fixes shared will
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* be incorporated into the next SCTP release.
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*
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* Written or modified by:
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* Sridhar Samudrala <sri@us.ibm.com>
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*/
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/* This is a Functional test to verify the new SCTP interface sctp_peeloff()
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* that can be used to branch off an association into a separate socket.
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/uio.h>
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#include <netinet/in.h>
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#include <errno.h>
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#include <netinet/sctp.h>
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#include <sctputil.h>
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char *TCID = __FILE__;
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int TST_TOTAL = 6;
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int TST_CNT = 0;
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#define MAX_CLIENTS 10
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int
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main(int argc, char *argv[])
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{
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int svr_sk, clt_sk[MAX_CLIENTS], peeloff_sk[MAX_CLIENTS];
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sctp_assoc_t svr_associd[MAX_CLIENTS];
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sockaddr_storage_t svr_loop, clt_loop[MAX_CLIENTS];
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struct iovec iov;
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struct msghdr inmessage;
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struct msghdr outmessage;
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char incmsg[CMSG_SPACE(sizeof(sctp_cmsg_data_t))];
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char outcmsg[CMSG_SPACE(sizeof(struct sctp_sndrcvinfo))];
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struct cmsghdr *cmsg;
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struct sctp_sndrcvinfo *sinfo;
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struct iovec out_iov;
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int error;
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uint32_t ppid;
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uint32_t stream;
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struct sctp_assoc_change *sac;
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char *big_buffer;
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int i;
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char *message = "hello, world!\n";
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int pf_class;
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/* Rather than fflush() throughout the code, set stdout to
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* be unbuffered.
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*/
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setvbuf(stdout, NULL, _IONBF, 0);
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#if TEST_V6
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pf_class = PF_INET6;
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svr_loop.v6.sin6_family = AF_INET6;
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svr_loop.v6.sin6_addr = in6addr_loopback;
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svr_loop.v6.sin6_port = htons(SCTP_TESTPORT_1);
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#else
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pf_class = PF_INET;
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svr_loop.v4.sin_family = AF_INET;
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svr_loop.v4.sin_addr.s_addr = SCTP_IP_LOOPBACK;
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svr_loop.v4.sin_port = htons(SCTP_TESTPORT_1);
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#endif
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/* Create and bind the server socket. */
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svr_sk = test_socket(pf_class, SOCK_SEQPACKET, IPPROTO_SCTP);
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test_bind(svr_sk, &svr_loop.sa, sizeof(svr_loop));
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/* Enable ASSOC_CHANGE and SNDRCVINFO notifications. */
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test_enable_assoc_change(svr_sk);
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/* Mark server socket as being able to accept new associations. */
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test_listen(svr_sk, 1);
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/* Create and bind all the client sockets. */
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for (i = 0; i < MAX_CLIENTS; i++) {
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clt_sk[i] = test_socket(pf_class, SOCK_SEQPACKET, IPPROTO_SCTP);
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#if TEST_V6
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clt_loop[i].v6.sin6_family = AF_INET6;
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clt_loop[i].v6.sin6_addr = in6addr_loopback;
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clt_loop[i].v6.sin6_port = htons(SCTP_TESTPORT_2 + i);
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#else
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clt_loop[i].v4.sin_family = AF_INET;
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clt_loop[i].v4.sin_addr.s_addr = SCTP_IP_LOOPBACK;
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clt_loop[i].v4.sin_port = htons(SCTP_TESTPORT_2 + i);
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#endif
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test_bind(clt_sk[i], &clt_loop[i].sa, sizeof(clt_loop[i]));
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test_enable_assoc_change(clt_sk[i]);
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}
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/* Send the first message from all the clients to the server. This
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* will create the associations.
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*/
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outmessage.msg_name = &svr_loop;
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outmessage.msg_namelen = sizeof(svr_loop);
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outmessage.msg_iov = &out_iov;
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outmessage.msg_iovlen = 1;
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outmessage.msg_control = outcmsg;
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outmessage.msg_controllen = sizeof(outcmsg);
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outmessage.msg_flags = 0;
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cmsg = CMSG_FIRSTHDR(&outmessage);
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cmsg->cmsg_level = IPPROTO_SCTP;
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cmsg->cmsg_type = SCTP_SNDRCV;
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cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
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outmessage.msg_controllen = cmsg->cmsg_len;
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sinfo = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
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memset(sinfo, 0x00, sizeof(struct sctp_sndrcvinfo));
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ppid = rand(); /* Choose an arbitrary value. */
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stream = 1;
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sinfo->sinfo_ppid = ppid;
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sinfo->sinfo_stream = stream;
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outmessage.msg_iov->iov_base = message;
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outmessage.msg_iov->iov_len = strlen(message) + 1;
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for (i = 0; i < MAX_CLIENTS; i++)
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test_sendmsg(clt_sk[i], &outmessage, 0,
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strlen(message)+1);
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/* Initialize inmessage for all receives. */
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big_buffer = test_malloc(REALLY_BIG);
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memset(&inmessage, 0, sizeof(inmessage));
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iov.iov_base = big_buffer;
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iov.iov_len = REALLY_BIG;
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inmessage.msg_iov = &iov;
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inmessage.msg_iovlen = 1;
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inmessage.msg_control = incmsg;
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/* Get the communication up message on all client sockets. */
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for (i = 0; i < MAX_CLIENTS; i++) {
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inmessage.msg_controllen = sizeof(incmsg);
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error = test_recvmsg(clt_sk[i], &inmessage, MSG_WAITALL);
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test_check_msg_notification(&inmessage, error,
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sizeof(struct sctp_assoc_change),
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SCTP_ASSOC_CHANGE, SCTP_COMM_UP);
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#if 0
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sac = (struct sctp_assoc_change *)iov.iov_base;
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clt_associd[i] = sac->sac_assoc_id;
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#endif
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}
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/* Get the communication up message and the data message on the
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* server sockets for all the clients.
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*/
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for (i = 0; i < MAX_CLIENTS; i++) {
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inmessage.msg_controllen = sizeof(incmsg);
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error = test_recvmsg(svr_sk, &inmessage, MSG_WAITALL);
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test_check_msg_notification(&inmessage, error,
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sizeof(struct sctp_assoc_change),
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SCTP_ASSOC_CHANGE, SCTP_COMM_UP);
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sac = (struct sctp_assoc_change *)iov.iov_base;
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svr_associd[i] = sac->sac_assoc_id;
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inmessage.msg_controllen = sizeof(incmsg);
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error = test_recvmsg(svr_sk, &inmessage, MSG_WAITALL);
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test_check_msg_data(&inmessage, error, strlen(message) + 1,
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MSG_EOR, stream, ppid);
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}
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/* Branch off all the associations on the server socket to separate
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* individual sockets.
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*/
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for (i = 0; i < MAX_CLIENTS; i++)
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peeloff_sk[i] = test_sctp_peeloff(svr_sk, svr_associd[i]);
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tst_resm(TPASS, "sctp_peeloff");
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errno = 0;
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/* Verify that a peeled off socket is not allowed to do a listen(). */
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error = listen(peeloff_sk[0], 1);
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if (error != -1)
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tst_brkm(TBROK, tst_exit, "listen on a peeled off socket "
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"error: %d, errno: %d", error, errno);
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tst_resm(TPASS, "listen on a peeled off socket");
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errno = 0;
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/* Verify that an association cannot be branched off an already
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* peeled-off socket.
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*/
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if ((-1 != sctp_peeloff(peeloff_sk[0], svr_associd[0])) ||
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(EINVAL != errno))
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tst_brkm(TBROK, tst_exit, "sctp_peeloff on a peeled off "
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"socket error:%d, errno:%d",
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error, errno);
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tst_resm(TPASS, "sctp_peeloff on a peeled off socket");
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/* Send a message from all the client sockets to the server socket. */
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for (i = 0; i < MAX_CLIENTS; i++)
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test_sendmsg(clt_sk[i], &outmessage, 0, strlen(message)+1);
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/* Receive the sent messages on the peeled off server sockets. */
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for (i = 0; i < MAX_CLIENTS; i++) {
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inmessage.msg_controllen = sizeof(incmsg);
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error = test_recvmsg(peeloff_sk[i], &inmessage, MSG_WAITALL);
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test_check_msg_data(&inmessage, error, strlen(message) + 1,
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MSG_EOR, stream, ppid);
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}
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tst_resm(TPASS, "Receive msgs on peeled off sockets");
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/* Send a message from all the peeled off server sockets to the client
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* sockets.
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*/
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for (i = 0; i < MAX_CLIENTS; i++) {
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outmessage.msg_name = &clt_loop[i];
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outmessage.msg_namelen = sizeof(clt_loop[i]);
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test_sendmsg(peeloff_sk[i], &outmessage, 0, strlen(message)+1);
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}
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/* Receive the messages sent from the peeled of server sockets on
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* the client sockets.
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*/
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for (i = 0; i < MAX_CLIENTS; i++) {
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inmessage.msg_controllen = sizeof(incmsg);
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error = test_recvmsg(clt_sk[i], &inmessage, MSG_WAITALL);
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test_check_msg_data(&inmessage, error, strlen(message) + 1,
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MSG_EOR, stream, ppid);
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}
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tst_resm(TPASS, "Send msgs on peeled off sockets");
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errno = 0;
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/* Verify that a peeled-off socket cannot initialize a new
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* association by trying to send a message to a client that is not
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* associated with the peeled-off socket.
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* The message is sent to the client that is associated with the
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* socket.
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*/
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outmessage.msg_name = &clt_loop[1];
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outmessage.msg_namelen = sizeof(clt_loop[1]);
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test_sendmsg(peeloff_sk[0], &outmessage, 0, strlen(message)+1);
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inmessage.msg_controllen = sizeof(incmsg);
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error = test_recvmsg(clt_sk[0], &inmessage, MSG_WAITALL);
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test_check_msg_data(&inmessage, error, strlen(message) + 1,
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MSG_EOR, stream, ppid);
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tst_resm(TPASS, "peeled off socket cannot initialize a new assoc");
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close(svr_sk);
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/* Close all the peeled off server sockets. */
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for (i = 0; i < MAX_CLIENTS; i++)
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close(peeloff_sk[i]);
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/* Get the shutdown complete notification from all the client
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* sockets.
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*/
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for (i = 0; i < MAX_CLIENTS; i++) {
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inmessage.msg_controllen = sizeof(incmsg);
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error = test_recvmsg(clt_sk[i], &inmessage, MSG_WAITALL);
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test_check_msg_notification(&inmessage, error,
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sizeof(struct sctp_assoc_change),
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SCTP_ASSOC_CHANGE,
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SCTP_SHUTDOWN_COMP);
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close(clt_sk[i]);
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}
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/* Indicate successful completion. */
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return 0;
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}
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