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 Non-Blocking mode of connect(), 6 * accept() and recvmsg() calls. 7 * 8 * TEST1: Non blocking accept return EAGAIN if connect is not called 9 * TEST2: Non blocking connect should return EINPROGRESS 10 * TEST3: accept() passes when connect called in Non-blocking mode 11 * TEST4: Non blocking recvmsg should return EAGAIN 12 * TEST5: recvmsg() should succeed if data present to receive in non blocking 13 * mode 14 * 15 * The SCTP implementation is free software; 16 * you can redistribute it and/or modify it under the terms of 17 * the GNU General Public License as published by 18 * the Free Software Foundation; either version 2, or (at your option) 19 * any later version. 20 * 21 * The SCTP implementation is distributed in the hope that it 22 * will be useful, but WITHOUT ANY WARRANTY; without even the implied 23 * ************************ 24 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 25 * See the GNU General Public License for more details. 26 * 27 * You should have received a copy of the GNU General Public License 28 * along with GNU CC; see the file COPYING. If not, write to 29 * the Free Software Foundation, 59 Temple Place - Suite 330, 30 * Boston, MA 02111-1307, USA. 31 * 32 * Please send any bug reports or fixes you make to the 33 * email address(es): 34 * lksctp developers <lksctp-developers (at) lists.sourceforge.net> 35 * 36 * Or submit a bug report through the following website: 37 * http://www.sf.net/projects/lksctp 38 * 39 * Any bugs reported given to us we will try to fix... any fixes shared will 40 * be incorporated into the next SCTP release 41 * 42 */ 43 44 #include <stdio.h> 45 #include <unistd.h> 46 #include <fcntl.h> 47 #include <stdlib.h> 48 #include <string.h> 49 #include <sys/types.h> 50 #include <sys/socket.h> 51 #include <netinet/in.h> /* for sockaddr_in */ 52 #include <arpa/inet.h> 53 #include <errno.h> 54 #include <netinet/sctp.h> 55 #include <sys/uio.h> 56 #include <linux/socket.h> 57 #include <sctputil.h> 58 59 char *TCID = __FILE__; 60 int TST_TOTAL = 5; 61 int TST_CNT = 0; 62 63 int 64 main(int argc, char *argv[]) 65 { 66 int error,msg_count; 67 socklen_t len; 68 int sk,pf_class,lstn_sk,acpt_sk,flag,cflag,sflag; 69 struct msghdr outmessage; 70 struct msghdr inmessage; 71 char *message = "hello, world!\n"; 72 struct iovec iov_rcv; 73 struct sctp_sndrcvinfo *sinfo; 74 char outcmsg[CMSG_SPACE(sizeof(struct sctp_sndrcvinfo))]; 75 struct cmsghdr *cmsg; 76 struct iovec out_iov; 77 char * buffer_rcv; 78 char incmsg[CMSG_SPACE(sizeof(sctp_cmsg_data_t))]; 79 80 struct sockaddr_in conn_addr,lstn_addr,svr_addr; 81 82 /* Rather than fflush() throughout the code, set stdout to 83 * be unbufferd 84 */ 85 setvbuf(stdout, NULL, _IONBF, 0); 86 setvbuf(stderr, NULL, _IONBF, 0); 87 88 pf_class = PF_INET; 89 90 sk = test_socket(pf_class, SOCK_STREAM, IPPROTO_SCTP); 91 92 lstn_sk = test_socket(pf_class, SOCK_STREAM, IPPROTO_SCTP); 93 94 conn_addr.sin_family = AF_INET; 95 conn_addr.sin_addr.s_addr = SCTP_IP_LOOPBACK; 96 conn_addr.sin_port = htons(SCTP_TESTPORT_1); 97 98 lstn_addr.sin_family = AF_INET; 99 lstn_addr.sin_addr.s_addr = SCTP_IP_LOOPBACK; 100 lstn_addr.sin_port = htons(SCTP_TESTPORT_1); 101 102 /*Binding the listen socket*/ 103 test_bind(lstn_sk, (struct sockaddr *) &lstn_addr, sizeof(lstn_addr)); 104 105 /*Listening the socket*/ 106 test_listen(lstn_sk, 10); 107 108 len = sizeof(struct sockaddr_in); 109 flag = MSG_NOSIGNAL; 110 111 /*Setting server socket non-blocking*/ 112 sflag = fcntl(lstn_sk, F_GETFL, 0); 113 if (sflag < 0) 114 tst_brkm(TBROK, tst_exit, "fcnt F_GETFL failed " 115 "sflag:%d, errno:%d", sflag, errno); 116 117 error = fcntl(lstn_sk, F_SETFL, sflag | O_NONBLOCK); 118 if (error < 0) 119 tst_brkm(TBROK, tst_exit, "fcnt F_SETFL failed " 120 "error:%d, errno:%d", error, errno); 121 122 /* TEST1: accept should return EAGAIN instead blocking. */ 123 error = accept(lstn_sk, (struct sockaddr *)&svr_addr, &len); 124 if (error != -1 || errno != EAGAIN) 125 tst_brkm(TBROK, tst_exit, "non-blocking accept " 126 "error:%d, errno:%d", error, errno); 127 128 tst_resm(TPASS, "non-blocking accept() - EAGAIN"); 129 130 /* TEST2: Non Block connect should return EINPROGRESS */ 131 /*Set client socket as non-blocking*/ 132 cflag = fcntl(sk, F_GETFL, 0); 133 if (cflag < 0) 134 tst_brkm(TBROK, tst_exit, "fcnt F_GETFL failed " 135 "cflag:%d, errno:%d", cflag, errno); 136 137 error = fcntl(sk, F_SETFL, sflag | O_NONBLOCK); 138 if (error < 0) 139 tst_brkm(TBROK, tst_exit, "fcnt F_SETFL failed " 140 "error:%d, errno:%d", error, errno); 141 142 error = connect(sk, (const struct sockaddr *) &conn_addr, len); 143 if (error != -1 || errno != EINPROGRESS) 144 tst_brkm(TBROK, tst_exit, "non-blocking connect " 145 "error:%d, errno:%d", error, errno); 146 147 tst_resm(TPASS, "non-blocking connect() - EINPROGRESS"); 148 149 /* TEST3: Now that connect() called, accept will succeed */ 150 acpt_sk = accept(lstn_sk, (struct sockaddr *)&svr_addr, &len); 151 if (acpt_sk < 0) 152 tst_brkm(TBROK, tst_exit, "accept after a non-blocking connect " 153 "error:%d, errno:%d", error, errno); 154 155 tst_resm(TPASS, "accept() after a non-blocking connect - SUCCESS"); 156 157 memset(&outmessage, 0, sizeof(outmessage)); 158 outmessage.msg_name = &svr_addr; 159 outmessage.msg_namelen = sizeof(svr_addr); 160 outmessage.msg_iov = &out_iov; 161 outmessage.msg_iovlen = 1; 162 outmessage.msg_control = outcmsg; 163 outmessage.msg_controllen = sizeof(outcmsg); 164 outmessage.msg_flags = 0; 165 166 cmsg = CMSG_FIRSTHDR(&outmessage); 167 cmsg->cmsg_level = IPPROTO_SCTP; 168 cmsg->cmsg_type = SCTP_SNDRCV; 169 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo)); 170 outmessage.msg_controllen = cmsg->cmsg_len; 171 sinfo = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg); 172 memset(sinfo, 0x00, sizeof(struct sctp_sndrcvinfo)); 173 174 outmessage.msg_iov->iov_base = message; 175 outmessage.msg_iov->iov_len = strlen(message) + 1; 176 177 memset(&inmessage, 0, sizeof(inmessage)); 178 buffer_rcv = malloc(REALLY_BIG); 179 180 iov_rcv.iov_base = buffer_rcv; 181 iov_rcv.iov_len = REALLY_BIG; 182 inmessage.msg_iov = &iov_rcv; 183 inmessage.msg_iovlen = 1; 184 inmessage.msg_control = incmsg; 185 inmessage.msg_controllen = sizeof(incmsg); 186 187 msg_count = strlen(message) + 1; 188 189 /* TEST4: recvmsg() should return EAGAIN instead blocking */ 190 error = recvmsg(sk, &inmessage, MSG_WAITALL); 191 if ( error != -1 || errno != EAGAIN) 192 tst_brkm(TBROK, tst_exit, "non-blocking recvmsg " 193 "error:%d, errno:%d", error, errno); 194 195 tst_resm(TPASS, "non-blocking recvmsg() - EAGAIN"); 196 197 test_sendmsg(acpt_sk, &outmessage, flag, msg_count); 198 199 /* TEST5: recvmsg() should succeed now as data is available. */ 200 error = test_recvmsg(sk, &inmessage, flag); 201 test_check_msg_data(&inmessage, error, msg_count, MSG_EOR, 0, 0); 202 203 tst_resm(TPASS, "non-blocking recvmsg() when data is available - " 204 "SUCCESS"); 205 206 close(lstn_sk); 207 close(acpt_sk); 208 return 0; 209 } 210
