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 #include "tst_kernel.h"
60
61 char *TCID = __FILE__;
62 int TST_TOTAL = 2;
63 int TST_CNT = 0;
64
65 int
main(void)66 main(void)
67 {
68 int sk1, sk2;
69 sockaddr_storage_t loop;
70 sockaddr_storage_t anyaddr;
71 struct msghdr outmessage;
72 char incmsg[CMSG_SPACE(sizeof(sctp_cmsg_data_t))];
73 char outcmsg[CMSG_SPACE(sizeof(struct sctp_sndrcvinfo))];
74 struct cmsghdr *cmsg;
75 struct sctp_sndrcvinfo *sinfo;
76 struct iovec out_iov;
77 struct iovec iov;
78 struct msghdr inmessage;
79 char *message = "hello, world!\n";
80 char *telephone = "Watson, come here! I need you!\n";
81 char *telephone_resp = "I already brought your coffee...\n";
82 int error;
83 int pf_class;
84 uint32_t ppid;
85 uint32_t stream;
86 socklen_t namelen;
87
88 if (tst_check_driver("sctp"))
89 tst_brkm(TCONF, tst_exit, "sctp driver not available");
90
91 /* Rather than fflush() throughout the code, set stdout to
92 * be unbuffered.
93 */
94 setvbuf(stdout, NULL, _IONBF, 0);
95
96 /* Set some basic values which depend on the address family. */
97 #if TEST_V6
98 pf_class = PF_INET6;
99
100 loop.v6.sin6_family = AF_INET6;
101 loop.v6.sin6_addr = (struct in6_addr)SCTP_IN6ADDR_LOOPBACK_INIT;
102 loop.v6.sin6_port = 0;
103
104 anyaddr.v6.sin6_family = AF_INET6;
105 anyaddr.v6.sin6_addr = (struct in6_addr)SCTP_IN6ADDR_ANY_INIT;
106 anyaddr.v6.sin6_port = 0;
107 #else
108 pf_class = PF_INET;
109
110 loop.v4.sin_family = AF_INET;
111 loop.v4.sin_addr.s_addr = SCTP_IP_LOOPBACK;
112 loop.v4.sin_port = 0;
113
114 anyaddr.v4.sin_family = AF_INET;
115 anyaddr.v4.sin_addr.s_addr = INADDR_ANY;
116 anyaddr.v4.sin_port = 0;
117 #endif /* TEST_V6 */
118
119 /* Create the two endpoints which will talk to each other. */
120 sk1 = test_socket(pf_class, SOCK_SEQPACKET, IPPROTO_SCTP);
121 sk2 = test_socket(pf_class, SOCK_SEQPACKET, IPPROTO_SCTP);
122
123 /* Enable ASSOC_CHANGE and SNDRCVINFO notifications. */
124 test_enable_assoc_change(sk1);
125 test_enable_assoc_change(sk2);
126
127 /* Bind these sockets to the test ports. */
128 test_bind(sk1, &loop.sa, sizeof(loop));
129 test_bind(sk2, &anyaddr.sa, sizeof(anyaddr));
130
131 tst_resm(TPASS, "bind INADDR_ANY address");
132
133 /* Mark sk2 as being able to accept new associations */
134 test_listen(sk2, 1);
135
136 /* Now use getsockaname() to retrieve the ephmeral ports. */
137 namelen = sizeof(loop);
138 error = getsockname(sk1, &loop.sa, &namelen);
139 if (error != 0)
140 tst_brkm(TBROK, tst_exit, "getsockname: %s", strerror(errno));
141
142 namelen = sizeof(anyaddr);
143 error = getsockname(sk2, &anyaddr.sa, &namelen);
144 if (error != 0)
145 tst_brkm(TBROK, tst_exit, "getsockname: %s", strerror(errno));
146
147 #if TEST_V6
148 loop.v6.sin6_port = anyaddr.v6.sin6_port;
149 #else
150 loop.v4.sin_port = anyaddr.v4.sin_port;
151 #endif
152
153 /* Send the first message. This will create the association. */
154 outmessage.msg_name = &loop;
155 outmessage.msg_namelen = sizeof(loop);
156 outmessage.msg_iov = &out_iov;
157 outmessage.msg_iovlen = 1;
158 outmessage.msg_control = outcmsg;
159 outmessage.msg_controllen = sizeof(outcmsg);
160 outmessage.msg_flags = 0;
161 cmsg = CMSG_FIRSTHDR(&outmessage);
162 cmsg->cmsg_level = IPPROTO_SCTP;
163 cmsg->cmsg_type = SCTP_SNDRCV;
164 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
165 outmessage.msg_controllen = cmsg->cmsg_len;
166 sinfo = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
167 memset(sinfo, 0x00, sizeof(struct sctp_sndrcvinfo));
168 ppid = rand(); /* Choose an arbitrary value. */
169 stream = 1;
170 sinfo->sinfo_ppid = ppid;
171 sinfo->sinfo_stream = stream;
172 outmessage.msg_iov->iov_base = message;
173 outmessage.msg_iov->iov_len = strlen(message) + 1;
174 test_sendmsg(sk1, &outmessage, 0, strlen(message)+1);
175
176 /* Initialize inmessage for all receives. */
177 memset(&inmessage, 0, sizeof(inmessage));
178 iov.iov_base = test_malloc(REALLY_BIG);
179 iov.iov_len = REALLY_BIG;
180 inmessage.msg_iov = &iov;
181 inmessage.msg_iovlen = 1;
182 inmessage.msg_control = incmsg;
183
184 /* Get the communication up message on sk2. */
185 inmessage.msg_controllen = sizeof(incmsg);
186 error = test_recvmsg(sk2, &inmessage, MSG_WAITALL);
187 test_check_msg_notification(&inmessage, error,
188 sizeof(struct sctp_assoc_change),
189 SCTP_ASSOC_CHANGE, SCTP_COMM_UP);
190
191 /* Get the communication up message on sk1. */
192 inmessage.msg_controllen = sizeof(incmsg);
193 error = test_recvmsg(sk1, &inmessage, MSG_WAITALL);
194 test_check_msg_notification(&inmessage, error,
195 sizeof(struct sctp_assoc_change),
196 SCTP_ASSOC_CHANGE, SCTP_COMM_UP);
197
198 /* Get the first message which was sent. */
199 inmessage.msg_controllen = sizeof(incmsg);
200 error = test_recvmsg(sk2, &inmessage, MSG_WAITALL);
201 test_check_msg_data(&inmessage, error, strlen(message) + 1,
202 MSG_EOR, stream, ppid);
203
204 /* Send 2 messages. */
205 outmessage.msg_name = &loop;
206 outmessage.msg_namelen = sizeof(loop);
207 outmessage.msg_controllen = sizeof(outcmsg);
208 outmessage.msg_flags = 0;
209 cmsg = CMSG_FIRSTHDR(&outmessage);
210 cmsg->cmsg_level = IPPROTO_SCTP;
211 cmsg->cmsg_type = SCTP_SNDRCV;
212 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
213 outmessage.msg_controllen = cmsg->cmsg_len;
214 sinfo = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
215 memset(sinfo, 0x00, sizeof(struct sctp_sndrcvinfo));
216 ppid++;
217 stream++;
218 sinfo->sinfo_ppid = ppid;
219 sinfo->sinfo_stream = stream;
220 outmessage.msg_iov->iov_base = telephone;
221 outmessage.msg_iov->iov_len = strlen(telephone) + 1;
222 test_sendmsg(sk1, &outmessage, 0, strlen(telephone)+1);
223
224 outmessage.msg_iov->iov_base = telephone_resp;
225 outmessage.msg_iov->iov_len = strlen(telephone_resp) + 1;
226 test_sendmsg(sk1, &outmessage, 0, strlen(telephone_resp)+1);
227
228 /* Get those two messages. */
229 inmessage.msg_controllen = sizeof(incmsg);
230 error = test_recvmsg(sk2, &inmessage, MSG_WAITALL);
231 test_check_msg_data(&inmessage, error, strlen(telephone) + 1,
232 MSG_EOR, stream, ppid);
233
234 inmessage.msg_controllen = sizeof(incmsg);
235 error = test_recvmsg(sk2, &inmessage, MSG_WAITALL);
236 test_check_msg_data(&inmessage, error, strlen(telephone_resp) + 1,
237 MSG_EOR, stream, ppid);
238
239 /* Shut down the link. */
240 close(sk1);
241
242 /* Get the shutdown complete notification. */
243 inmessage.msg_controllen = sizeof(incmsg);
244 error = test_recvmsg(sk2, &inmessage, MSG_WAITALL);
245 test_check_msg_notification(&inmessage, error,
246 sizeof(struct sctp_assoc_change),
247 SCTP_ASSOC_CHANGE, SCTP_SHUTDOWN_COMP);
248
249 close(sk2);
250
251 tst_resm(TPASS, "send msgs from a socket with INADDR_ANY bind address");
252
253 /* Indicate successful completion. */
254 return 0;
255 }
256