1 /* SCTP kernel Implementation
2  * Copyright (c) 2003 Hewlett-Packard Development Company, L.P
3  * (C) Copyright IBM Corp. 2004
4  *
5  * This file has test cases to test the sctp_connectx () call for 1-1 style sockets
6  *
7  * TEST1: Bad socket descriptor
8  * TEST2: Invalid socket
9  * TEST3: Invalid address
10  * TEST4: Invalid address length
11  * TEST5: Invalid address family
12  * TEST6: Valid blocking sctp_connectx
13  * TEST7: Connect when accept queue is full
14  * TEST8: On a listening socket
15  * TEST9: On established socket
16  * TEST10: Connect to re-establish a closed association.
17  *
18  * The SCTP implementation is free software;
19  * you can redistribute it and/or modify it under the terms of
20  * the GNU General Public License as published by
21  * the Free Software Foundation; either version 2, or (at your option)
22  * any later version.
23  *
24  * The SCTP implementation is distributed in the hope that it
25  * will be useful, but WITHOUT ANY WARRANTY; without even the implied
26  *                 ************************
27  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
28  * See the GNU General Public License for more details.
29  *
30  * You should have received a copy of the GNU General Public License
31  * along with GNU CC; see the file COPYING.  If not, write to
32  * the Free Software Foundation, 59 Temple Place - Suite 330,
33  * Boston, MA 02111-1307, USA.
34  *
35  * Please send any bug reports or fixes you make to the
36  * email address(es):
37  *    lksctp developers <lksctp-developers@lists.sourceforge.net>
38  *
39  * Or submit a bug report through the following website:
40  *    http://www.sf.net/projects/lksctp
41  *
42  * Any bugs reported given to us we will try to fix... any fixes shared will
43  * be incorporated into the next SCTP release
44  *
45  */
46 
47 #include <stdio.h>
48 #include <unistd.h>
49 #include <fcntl.h>
50 #include <stdlib.h>
51 #include <string.h>
52 #include <sys/types.h>
53 #include <sys/socket.h>
54 #include <linux/socket.h>
55 #include <netinet/in.h>         /* for sockaddr_in */
56 #include <arpa/inet.h>
57 #include <sys/errno.h>
58 #include <sys/uio.h>
59 #include <netinet/sctp.h>
60 #include "sctputil.h"
61 
62 char *TCID = __FILE__;
63 int TST_TOTAL = 10;
64 int TST_CNT = 0;
65 
66 #define SK_MAX 10
67 
68 int
main(int argc,char * argv[])69 main(int argc, char *argv[])
70 {
71 	int error,i;
72 	socklen_t len;
73 	int sk,lstn_sk,clnt_sk[SK_MAX],acpt_sk[SK_MAX],pf_class;
74 	int sk1,clnt2_sk;
75 
76 	struct sockaddr_in conn_addr,lstn_addr,acpt_addr;
77 	struct sockaddr *tmp_addr;
78 
79 	/* Rather than fflush() throughout the code, set stdout to
80 	 * be unbuffered.
81 	 */
82 	setvbuf(stdout, NULL, _IONBF, 0);
83 	setvbuf(stderr, NULL, _IONBF, 0);
84 
85 	pf_class = PF_INET;
86 
87 	sk = test_socket(pf_class, SOCK_STREAM, IPPROTO_SCTP);
88 	sk1 = test_socket(pf_class, SOCK_STREAM, IPPROTO_SCTP);
89 
90 	/*Creating a listen socket*/
91 	lstn_sk = test_socket(pf_class, SOCK_STREAM, IPPROTO_SCTP);
92 
93 	/*Creating a regular socket*/
94 	for (i = 0 ; i < SK_MAX ; i++)
95 		clnt_sk[i] = test_socket(pf_class, SOCK_STREAM, IPPROTO_SCTP);
96 
97 	clnt2_sk = test_socket(pf_class, SOCK_STREAM, IPPROTO_SCTP);
98 
99 	conn_addr.sin_family = AF_INET;
100 	conn_addr.sin_addr.s_addr = SCTP_IP_LOOPBACK;
101 	conn_addr.sin_port = htons(SCTP_TESTPORT_1);
102 
103 	lstn_addr.sin_family = AF_INET;
104 	lstn_addr.sin_addr.s_addr = SCTP_IP_LOOPBACK;
105 	lstn_addr.sin_port = htons(SCTP_TESTPORT_1);
106 
107 	/*Binding the listen socket*/
108 	test_bind(lstn_sk, (struct sockaddr *) &lstn_addr, sizeof(lstn_addr));
109 
110 	/*Listening the socket*/
111 	test_listen(lstn_sk, SK_MAX-1);
112 
113 
114 	/*sctp_connectx () TEST1: Bad socket descriptor, EBADF Expected error*/
115 	len = sizeof(struct sockaddr_in);
116 	error = sctp_connectx(-1, (struct sockaddr *) &conn_addr, 1, NULL);
117 	if (error != -1 || errno != EBADF)
118 		tst_brkm(TBROK, tst_exit, "sctp_connectx with bad socket "
119 			 "descriptor error:%d, errno:%d", error, errno);
120 
121 	tst_resm(TPASS, "sctp_connectx() with bad socket descriptor - EBADF");
122 
123 	/*sctp_connectx () TEST2: Invalid socket, ENOTSOCK Expected error*/
124 	error = sctp_connectx(0, (struct sockaddr *) &conn_addr, 1, NULL);
125 	if (error != -1 || errno != ENOTSOCK)
126 		tst_brkm(TBROK, tst_exit, "sctp_connectx with invalid socket "
127 	                 "error:%d, errno:%d", error, errno);
128 
129 	tst_resm(TPASS, "sctp_connectx() with invalid socket - ENOTSOCK");
130 
131 	/*sctp_connectx () TEST3: Invalid address, EINVAL Expected error*/
132 	tmp_addr = (struct sockaddr *) malloc(sizeof(struct sockaddr) - 1);
133 	tmp_addr->sa_family = AF_INET;
134 	error = sctp_connectx(sk, tmp_addr, 1, NULL);
135 	if (error != -1 || errno != EINVAL)
136 		tst_brkm(TBROK, tst_exit, "sctp_connectx with invalid address "
137 	                 "error:%d, errno:%d", error, errno);
138 
139 	tst_resm(TPASS, "sctp_connectx() with invalid address - EINVAL");
140 
141 	/*sctp_connectx () TEST4: Invalid address length, EINVAL Expected error*/
142 	error = sctp_connectx(sk, (struct sockaddr *) &conn_addr, 0, NULL);
143 	if (error != -1 || errno != EINVAL)
144 		tst_brkm(TBROK, tst_exit, "sctp_connectx with invalid address length "
145 	                 "error:%d, errno:%d", error, errno);
146 
147 	tst_resm(TPASS, "sctp_connectx() with invalid address length - EINVAL");
148 
149 	/*sctp_connectx () TEST5: Invalid address family, EINVAL Expect error*/
150 	conn_addr.sin_family = 9090; /*Assigning invalid address family*/
151 	error = sctp_connectx(sk, (struct sockaddr *) &conn_addr, 1, NULL);
152 	if (error != -1 || errno != EINVAL)
153 		tst_brkm(TBROK, tst_exit, "sctp_connectx with invalid address family "
154 	                 "error:%d, errno:%d", error, errno);
155 
156 	tst_resm(TPASS, "sctp_connectx() with invalid address family - EINVAL");
157 
158 	conn_addr.sin_family = AF_INET;
159 
160 	/*sctp_connectx () TEST6: Blocking sctp_connectx, should pass*/
161 	/*All the be below blocking sctp_connectx should pass as socket will be
162 	listening SK_MAX clients*/
163 	for (i = 0 ; i < SK_MAX ; i++) {
164 		error = sctp_connectx(clnt_sk[i], (struct sockaddr *)&conn_addr,
165 			      1, NULL);
166 		if (error < 0)
167 			tst_brkm(TBROK, tst_exit, "valid blocking sctp_connectx "
168 				 "error:%d, errno:%d", error, errno);
169 	}
170 
171 	tst_resm(TPASS, "valid blocking sctp_connectx() - SUCCESS");
172 
173 	/*sctp_connectx () TEST7: sctp_connectx when accept queue is full, ECONNREFUSED
174 	Expect error*/
175 	/*Now that accept queue is full, the below sctp_connectx should fail*/
176 	error = sctp_connectx(clnt2_sk, (struct sockaddr *) &conn_addr, 1, NULL);
177 	if (error != -1 || errno != ECONNREFUSED)
178 		tst_brkm(TBROK, tst_exit, "sctp_connectx when accept queue is full "
179 	                 "error:%d, errno:%d", error, errno);
180 
181 	tst_resm(TPASS, "sctp_connectx() when accept queue is full - ECONNREFUSED");
182 
183 	/*Calling a accept first to estblish the pending sctp_connectxions*/
184 	for (i=0 ; i < SK_MAX ; i++)
185 		acpt_sk[i] = test_accept(lstn_sk,
186 					 (struct sockaddr *) &acpt_addr, &len);
187 
188 	/*sctp_connectx () TEST8: from a listening socket, EISCONN Expect error*/
189 	error = sctp_connectx(lstn_sk, (struct sockaddr *) &lstn_addr, 1, NULL);
190 	if (error != -1 || errno != EISCONN)
191 		tst_brkm(TBROK, tst_exit, "sctp_connectx on a listening socket "
192 	                 "error:%d, errno:%d", error, errno);
193 
194 	tst_resm(TPASS, "sctp_connectx() on a listening socket - EISCONN");
195 
196 	/*sctp_connectx() TEST9: On established socket, EISCONN Expect error*/
197 	i=0;
198 	error = sctp_connectx(acpt_sk[i], (struct sockaddr *) &lstn_addr, 1, NULL);
199 	if (error != -1 || errno != EISCONN)
200 		tst_brkm(TBROK, tst_exit, "sctp_connectx on an established socket "
201 	                 "error:%d, errno:%d", error, errno);
202 
203 	tst_resm(TPASS, "sctp_connectx() on an established socket - EISCONN");
204 
205 	for (i = 0 ; i < 4 ; i++) {
206 		close(clnt_sk[i]);
207 		close(acpt_sk[i]);
208 	}
209 
210 	/* sctp_connectx() TEST10: Re-establish an association that is closed.
211 	 * should succeed.
212 	 */
213 	error = sctp_connectx(sk1, (struct sockaddr *)&conn_addr, 1, NULL);
214 	if (error < 0)
215 		tst_brkm(TBROK, tst_exit, "Re-establish an association that "
216 				 "is closed error:%d, errno:%d", error, errno);
217 
218 	tst_resm(TPASS, "sctp_connectx() to re-establish a closed association - "
219 		 "SUCCESS");
220 
221 	close(sk);
222 	close(sk1);
223 	close(lstn_sk);
224 
225 	return 0;
226 }
227