1 /* SCTP kernel Implementation
2 * (C) Copyright IBM Corp. 2002, 2003
3 * Copyright (c) 1999-2000 Cisco, Inc.
4 * Copyright (c) 1999-2001 Motorola, Inc.
5 * Copyright (c) 2001 Intel Corp.
6 * Copyright (c) 2001 Nokia, Inc.
7 * Copyright (c) 2001 La Monte H.P. Yarroll
8 *
9 * The SCTP implementation is free software;
10 * you can redistribute it and/or modify it under the terms of
11 * the GNU General Public License as published by
12 * the Free Software Foundation; either version 2, or (at your option)
13 * any later version.
14 *
15 * The SCTP implementation is distributed in the hope that it
16 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
17 * ************************
18 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
19 * See the GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with GNU CC; see the file COPYING. If not, write to
23 * the Free Software Foundation, 59 Temple Place - Suite 330,
24 * Boston, MA 02111-1307, USA.
25 *
26 * Please send any bug reports or fixes you make to the
27 * email address(es):
28 * lksctp developers <lksctp-developers@lists.sourceforge.net>
29 *
30 * Or submit a bug report through the following website:
31 * http://www.sf.net/projects/lksctp
32 *
33 * Any bugs reported to us we will try to fix... any fixes shared will
34 * be incorporated into the next SCTP release.
35 *
36 * Written or modified by:
37 * La Monte H.P. Yarroll <piggy@acm.org>
38 * Karl Knutson <karl@athena.chicago.il.us>
39 * Jon Grimm <jgrimm@us.ibm.com>
40 * Sridhar Samudrala <sri@us.ibm.com>
41 * Daisy Chang <daisyc@us.ibm.com>
42 */
43
44 /* This is a functional test to verify binding a socket with INADDRY_ANY
45 * address and send messages.
46 */
47
48 #include <stdio.h>
49 #include <unistd.h>
50 #include <string.h>
51 #include <stdlib.h>
52 #include <sys/types.h>
53 #include <sys/socket.h>
54 #include <sys/uio.h>
55 #include <netinet/in.h>
56 #include <errno.h>
57 #include <netinet/sctp.h>
58 #include <sctputil.h>
59
60 char *TCID = __FILE__;
61 int TST_TOTAL = 2;
62 int TST_CNT = 0;
63
64 int
main(void)65 main(void)
66 {
67 int sk1, sk2;
68 sockaddr_storage_t loop;
69 sockaddr_storage_t anyaddr;
70 struct msghdr outmessage;
71 char incmsg[CMSG_SPACE(sizeof(sctp_cmsg_data_t))];
72 char outcmsg[CMSG_SPACE(sizeof(struct sctp_sndrcvinfo))];
73 struct cmsghdr *cmsg;
74 struct sctp_sndrcvinfo *sinfo;
75 struct iovec out_iov;
76 struct iovec iov;
77 struct msghdr inmessage;
78 char *message = "hello, world!\n";
79 char *telephone = "Watson, come here! I need you!\n";
80 char *telephone_resp = "I already brought your coffee...\n";
81 int error;
82 int pf_class;
83 uint32_t ppid;
84 uint32_t stream;
85 socklen_t namelen;
86
87 /* Rather than fflush() throughout the code, set stdout to
88 * be unbuffered.
89 */
90 setvbuf(stdout, NULL, _IONBF, 0);
91
92 /* Set some basic values which depend on the address family. */
93 #if TEST_V6
94 pf_class = PF_INET6;
95
96 loop.v6.sin6_family = AF_INET6;
97 loop.v6.sin6_addr = (struct in6_addr)SCTP_IN6ADDR_LOOPBACK_INIT;
98 loop.v6.sin6_port = 0;
99
100 anyaddr.v6.sin6_family = AF_INET6;
101 anyaddr.v6.sin6_addr = (struct in6_addr)SCTP_IN6ADDR_ANY_INIT;
102 anyaddr.v6.sin6_port = 0;
103 #else
104 pf_class = PF_INET;
105
106 loop.v4.sin_family = AF_INET;
107 loop.v4.sin_addr.s_addr = SCTP_IP_LOOPBACK;
108 loop.v4.sin_port = 0;
109
110 anyaddr.v4.sin_family = AF_INET;
111 anyaddr.v4.sin_addr.s_addr = INADDR_ANY;
112 anyaddr.v4.sin_port = 0;
113 #endif /* TEST_V6 */
114
115 /* Create the two endpoints which will talk to each other. */
116 sk1 = test_socket(pf_class, SOCK_SEQPACKET, IPPROTO_SCTP);
117 sk2 = test_socket(pf_class, SOCK_SEQPACKET, IPPROTO_SCTP);
118
119 /* Enable ASSOC_CHANGE and SNDRCVINFO notifications. */
120 test_enable_assoc_change(sk1);
121 test_enable_assoc_change(sk2);
122
123 /* Bind these sockets to the test ports. */
124 test_bind(sk1, &loop.sa, sizeof(loop));
125 test_bind(sk2, &anyaddr.sa, sizeof(anyaddr));
126
127 tst_resm(TPASS, "bind INADDR_ANY address");
128
129 /* Mark sk2 as being able to accept new associations */
130 test_listen(sk2, 1);
131
132 /* Now use getsockaname() to retrieve the ephmeral ports. */
133 namelen = sizeof(loop);
134 error = getsockname(sk1, &loop.sa, &namelen);
135 if (error != 0)
136 tst_brkm(TBROK, tst_exit, "getsockname: %s", strerror(errno));
137
138 namelen = sizeof(anyaddr);
139 error = getsockname(sk2, &anyaddr.sa, &namelen);
140 if (error != 0)
141 tst_brkm(TBROK, tst_exit, "getsockname: %s", strerror(errno));
142
143 #if TEST_V6
144 loop.v6.sin6_port = anyaddr.v6.sin6_port;
145 #else
146 loop.v4.sin_port = anyaddr.v4.sin_port;
147 #endif
148
149 /* Send the first message. This will create the association. */
150 outmessage.msg_name = &loop;
151 outmessage.msg_namelen = sizeof(loop);
152 outmessage.msg_iov = &out_iov;
153 outmessage.msg_iovlen = 1;
154 outmessage.msg_control = outcmsg;
155 outmessage.msg_controllen = sizeof(outcmsg);
156 outmessage.msg_flags = 0;
157 cmsg = CMSG_FIRSTHDR(&outmessage);
158 cmsg->cmsg_level = IPPROTO_SCTP;
159 cmsg->cmsg_type = SCTP_SNDRCV;
160 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
161 outmessage.msg_controllen = cmsg->cmsg_len;
162 sinfo = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
163 memset(sinfo, 0x00, sizeof(struct sctp_sndrcvinfo));
164 ppid = rand(); /* Choose an arbitrary value. */
165 stream = 1;
166 sinfo->sinfo_ppid = ppid;
167 sinfo->sinfo_stream = stream;
168 outmessage.msg_iov->iov_base = message;
169 outmessage.msg_iov->iov_len = strlen(message) + 1;
170 test_sendmsg(sk1, &outmessage, 0, strlen(message)+1);
171
172 /* Initialize inmessage for all receives. */
173 memset(&inmessage, 0, sizeof(inmessage));
174 iov.iov_base = test_malloc(REALLY_BIG);
175 iov.iov_len = REALLY_BIG;
176 inmessage.msg_iov = &iov;
177 inmessage.msg_iovlen = 1;
178 inmessage.msg_control = incmsg;
179
180 /* Get the communication up message on sk2. */
181 inmessage.msg_controllen = sizeof(incmsg);
182 error = test_recvmsg(sk2, &inmessage, MSG_WAITALL);
183 test_check_msg_notification(&inmessage, error,
184 sizeof(struct sctp_assoc_change),
185 SCTP_ASSOC_CHANGE, SCTP_COMM_UP);
186
187 /* Get the communication up message on sk1. */
188 inmessage.msg_controllen = sizeof(incmsg);
189 error = test_recvmsg(sk1, &inmessage, MSG_WAITALL);
190 test_check_msg_notification(&inmessage, error,
191 sizeof(struct sctp_assoc_change),
192 SCTP_ASSOC_CHANGE, SCTP_COMM_UP);
193
194 /* Get the first message which was sent. */
195 inmessage.msg_controllen = sizeof(incmsg);
196 error = test_recvmsg(sk2, &inmessage, MSG_WAITALL);
197 test_check_msg_data(&inmessage, error, strlen(message) + 1,
198 MSG_EOR, stream, ppid);
199
200 /* Send 2 messages. */
201 outmessage.msg_name = &loop;
202 outmessage.msg_namelen = sizeof(loop);
203 outmessage.msg_controllen = sizeof(outcmsg);
204 outmessage.msg_flags = 0;
205 cmsg = CMSG_FIRSTHDR(&outmessage);
206 cmsg->cmsg_level = IPPROTO_SCTP;
207 cmsg->cmsg_type = SCTP_SNDRCV;
208 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
209 outmessage.msg_controllen = cmsg->cmsg_len;
210 sinfo = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
211 memset(sinfo, 0x00, sizeof(struct sctp_sndrcvinfo));
212 ppid++;
213 stream++;
214 sinfo->sinfo_ppid = ppid;
215 sinfo->sinfo_stream = stream;
216 outmessage.msg_iov->iov_base = telephone;
217 outmessage.msg_iov->iov_len = strlen(telephone) + 1;
218 test_sendmsg(sk1, &outmessage, 0, strlen(telephone)+1);
219
220 outmessage.msg_iov->iov_base = telephone_resp;
221 outmessage.msg_iov->iov_len = strlen(telephone_resp) + 1;
222 test_sendmsg(sk1, &outmessage, 0, strlen(telephone_resp)+1);
223
224 /* Get those two messages. */
225 inmessage.msg_controllen = sizeof(incmsg);
226 error = test_recvmsg(sk2, &inmessage, MSG_WAITALL);
227 test_check_msg_data(&inmessage, error, strlen(telephone) + 1,
228 MSG_EOR, stream, ppid);
229
230 inmessage.msg_controllen = sizeof(incmsg);
231 error = test_recvmsg(sk2, &inmessage, MSG_WAITALL);
232 test_check_msg_data(&inmessage, error, strlen(telephone_resp) + 1,
233 MSG_EOR, stream, ppid);
234
235 /* Shut down the link. */
236 close(sk1);
237
238 /* Get the shutdown complete notification. */
239 inmessage.msg_controllen = sizeof(incmsg);
240 error = test_recvmsg(sk2, &inmessage, MSG_WAITALL);
241 test_check_msg_notification(&inmessage, error,
242 sizeof(struct sctp_assoc_change),
243 SCTP_ASSOC_CHANGE, SCTP_SHUTDOWN_COMP);
244
245 close(sk2);
246
247 tst_resm(TPASS, "send msgs from a socket with INADDR_ANY bind address");
248
249 /* Indicate successful completion. */
250 return 0;
251 }
252