1/* SCTP kernel Implementation
2 * Copyright (c) 2003 Hewlett-Packard Development Company, L.P
3 * (C) Copyright IBM Corp. 2004
4 *
5 * This test tests the events for 1-1 style sockets.
6 *
7 * The SCTP implementation is free software;
8 * you can redistribute it and/or modify it under the terms of
9 * the GNU General Public License as published by
10 * the Free Software Foundation; either version 2, or (at your option)
11 * any later version.
12 *
13 * The SCTP implementation is distributed in the hope that it
14 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
15 *                 ************************
16 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
17 * See the GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with GNU CC; see the file COPYING.  If not, write to
21 * the Free Software Foundation, 59 Temple Place - Suite 330,
22 * Boston, MA 02111-1307, USA.
23 *
24 * Please send any bug reports or fixes you make to the
25 * email address(es):
26 *    lksctp developers <lksctp-developers@lists.sourceforge.net>
27 *
28 * Or submit a bug report through the following website:
29 *    http://www.sf.net/projects/lksctp
30 *
31 *
32 * Any bugs reported given to us we will try to fix... any fixes shared will
33 * be incorporated into the next SCTP release.
34 *
35 */
36#include <stdio.h>
37#include <unistd.h>
38#include <stdlib.h>
39#include <sys/types.h>
40#include <sys/socket.h>         /* needed by linux/sctp.h */
41#include <sys/uio.h>
42#include <netinet/in.h>         /* for sockaddr_in */
43#include <errno.h>
44#include <netinet/sctp.h>
45#include <sctputil.h>
46#include <string.h>
47
48char *TCID = __FILE__;
49int TST_TOTAL = 4;
50int TST_CNT = 0;
51
52int
53main(int argc, char *argv[])
54{
55	int svr_sk, clt_sk,acpt_sk;
56	struct sockaddr_in svr_loop, clt_loop,acpt_loop;
57	struct iovec iov, out_iov;
58	struct msghdr inmessage, outmessage;
59	char incmsg[CMSG_SPACE(sizeof(sctp_cmsg_data_t))];
60	char outcmsg[CMSG_SPACE(sizeof(struct sctp_sndrcvinfo))];
61	int error;
62	socklen_t len;
63	char *big_buffer;
64	struct sctp_event_subscribe event;
65	struct cmsghdr *cmsg;
66	struct sctp_sndrcvinfo *sinfo;
67	char *message = "hello, world!\n";
68	uint32_t ppid;
69	uint32_t stream;
70
71        /* Rather than fflush() throughout the code, set stdout to
72	 * be unbuffered.
73	 */
74	setvbuf(stdout, NULL, _IONBF, 0);
75
76	/* Initialize the server and client addresses. */
77	svr_loop.sin_family = AF_INET;
78	svr_loop.sin_addr.s_addr = SCTP_IP_LOOPBACK;
79	svr_loop.sin_port = htons(SCTP_TESTPORT_1);
80
81	clt_loop.sin_family = AF_INET;
82	clt_loop.sin_addr.s_addr = SCTP_IP_LOOPBACK;
83	clt_loop.sin_port = htons(SCTP_TESTPORT_1);
84
85	/* Create and bind the server socket.  */
86        svr_sk = test_socket(AF_INET, SOCK_STREAM, IPPROTO_SCTP);
87	test_bind(svr_sk, (struct sockaddr *) &svr_loop, sizeof(svr_loop));
88
89	/* Mark server socket as being able to accept new associations.  */
90	test_listen(svr_sk, 3);
91
92	/* Create the client socket.  */
93	clt_sk = test_socket(AF_INET, SOCK_STREAM, IPPROTO_SCTP);
94
95	event.sctp_data_io_event = 1;
96	event.sctp_association_event = 1;
97	event.sctp_shutdown_event = 1;
98	len = sizeof(struct sctp_event_subscribe);
99	test_setsockopt(svr_sk, SCTP_EVENTS, &event, len);
100	test_setsockopt(clt_sk, SCTP_EVENTS, &event, len);
101
102	len = sizeof(struct sockaddr_in);
103	test_connect(clt_sk, (struct sockaddr *) &clt_loop, len);
104
105	acpt_sk = test_accept(svr_sk, (struct sockaddr *) &acpt_loop, &len);
106
107	/* Build up a msghdr structure we can use for all sending.  */
108	memset(&outmessage, 0, sizeof(outmessage));
109	outmessage.msg_name = &svr_loop;
110	outmessage.msg_namelen = sizeof(svr_loop);
111	outmessage.msg_iov = &out_iov;
112	outmessage.msg_iovlen = 1;
113	outmessage.msg_control = outcmsg;
114	outmessage.msg_controllen = sizeof(outcmsg);
115	outmessage.msg_flags = 0;
116
117	cmsg = CMSG_FIRSTHDR(&outmessage);
118	cmsg->cmsg_level = IPPROTO_SCTP;
119	cmsg->cmsg_type = SCTP_SNDRCV;
120	cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
121	outmessage.msg_controllen = cmsg->cmsg_len;
122	sinfo = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
123	memset(sinfo, 0x00, sizeof(struct sctp_sndrcvinfo));
124	ppid = rand(); /* Choose an arbitrary value. */
125	stream = 1;
126
127	sinfo->sinfo_ppid = ppid;
128	sinfo->sinfo_stream = stream;
129
130	outmessage.msg_iov->iov_base = message;
131	outmessage.msg_iov->iov_len = (strlen(message) + 1);
132
133	/* Send . This will create the association*/
134	test_sendmsg(clt_sk, &outmessage, 0, strlen(message)+1);
135
136        memset(&inmessage, 0, sizeof(inmessage));
137	/* NOW initialize inmessage with enough space for DATA... */
138	big_buffer = malloc(REALLY_BIG);
139	if (!big_buffer) { DUMP_CORE; }
140
141	/* Let's do a test to do a recvmsg when we are not listening and
142	 * when we have no associations.
143	 */
144	iov.iov_base = big_buffer;
145	iov.iov_len = REALLY_BIG;
146	inmessage.msg_iov = &iov;
147	inmessage.msg_iovlen = 1;
148	inmessage.msg_control = incmsg;
149	inmessage.msg_controllen = sizeof(incmsg);
150
151	error = test_recvmsg(clt_sk, &inmessage, MSG_WAITALL);
152	test_check_msg_notification(&inmessage,
153                                    error,
154                                    sizeof(struct sctp_assoc_change),
155                                    SCTP_ASSOC_CHANGE,
156                                    SCTP_COMM_UP);
157
158	tst_resm(TPASS, "COMM_UP notification on client socket - SUCCESS");
159
160	error = test_recvmsg(acpt_sk, &inmessage, MSG_WAITALL);
161	test_check_msg_notification(&inmessage,
162                                    error,
163                                    sizeof(struct sctp_assoc_change),
164                                    SCTP_ASSOC_CHANGE,
165                                    SCTP_COMM_UP);
166
167	tst_resm(TPASS, "COMM_UP notification on server socket - SUCCESS");
168
169	inmessage.msg_control = incmsg;
170	inmessage.msg_controllen = sizeof(incmsg);
171	error = test_recvmsg(acpt_sk, &inmessage, MSG_WAITALL);
172        test_check_msg_data(&inmessage, error, strlen(message) + 1,
173                            MSG_EOR, stream, ppid);
174
175	tst_resm(TPASS, "Data message on server socket - SUCCESS");
176
177	close(clt_sk);
178	error = test_recvmsg(acpt_sk, &inmessage, MSG_WAITALL);
179	test_check_msg_notification(&inmessage,
180                                    error,
181                                    sizeof(struct sctp_shutdown_event),
182                                    SCTP_SHUTDOWN_EVENT,
183                                    0);
184
185	tst_resm(TPASS, "SHUTDOWN notification on accepted socket - SUCCESS");
186	close(svr_sk);
187	close(acpt_sk);
188
189	return 0;
190}
191