1 /* 2 * Copyright (c) 1988, 1990 Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 #ifndef lint 8 static char sccsid[] = "@(#)tisink.c 7.3 (Berkeley) 06/29/90"; 9 #endif /* not lint */ 10 11 /* 12 * This is a test program to be a sink for TP4 connections. 13 */ 14 #include <sys/param.h> 15 #include <sys/uio.h> 16 #include <sys/socket.h> 17 #include <sys/ioctl.h> 18 #include <net/route.h> 19 #include <net/if.h> 20 #define TCPT_NTIMERS 4 21 #include <netiso/iso.h> 22 #include <netiso/tp_param.h> 23 #include <netiso/tp_user.h> 24 25 #include <stdio.h> 26 #include <errno.h> 27 #include <ctype.h> 28 #include <netdb.h> 29 30 31 #define dbprintf if(verbose)printf 32 #define try(a,b,c) {x = (a b); dbprintf("%s%s returns %d\n",c,"a",x);\ 33 if(x<0) {perror("a"); myexit(0);}} 34 35 36 struct ifreq ifr; 37 short port = 3000; 38 struct sockaddr_iso faddr, laddr = { sizeof(laddr), AF_ISO }; 39 struct sockaddr_iso *siso = &laddr; 40 41 long size, count = 10, forkp, confp, echop, mynamep, verbose = 1, playtag = 0; 42 long records, intercept = 0; 43 44 char buf[2048]; 45 char your_it[] = "You're it!"; 46 47 char *Servername; 48 49 main(argc, argv) 50 int argc; 51 char *argv[]; 52 { 53 register char **av = argv; 54 register char *cp; 55 struct iso_addr iso_addr(); 56 57 while(--argc > 0) { 58 av++; 59 if(strcmp(*av,"Servername")==0) { 60 av++; 61 Servername = *av; 62 argc--; 63 } else if (strcmp(*av,"host")==0) { 64 av++; 65 laddr.siso_addr = iso_addr(*av); 66 argc--; 67 } else if (strcmp(*av,"count")==0) { 68 av++; 69 sscanf(*av,"%ld",&count); 70 argc--; 71 } else if (strcmp(*av,"port")==0) { 72 av++; 73 sscanf(*av,"%hd",&port); 74 argc--; 75 } else if (strcmp(*av,"size")==0) { 76 av++; 77 sscanf(*av,"%ld",&size); 78 argc--; 79 } else if (strcmp(*av, "intercept")==0) { 80 intercept++; 81 } 82 } 83 if (Servername) { 84 int tlen = laddr.siso_tlen = strlen(Servername); 85 int len = TSEL(siso) + tlen - (caddr_t) &siso; 86 if (len > sizeof(*siso)) { 87 siso = (struct sockaddr_iso *)malloc(len); 88 *siso = laddr; 89 siso->siso_len = len; 90 } 91 bcopy(Servername, TSEL(siso), tlen); 92 } else { 93 port = htons(port); 94 laddr.siso_tlen = sizeof(port); 95 bcopy((char *)&port, TSEL(siso), sizeof(port)); 96 } 97 tisink(); 98 } 99 #define BIG 2048 100 #define MIDLIN 512 101 char readbuf[BIG]; 102 struct iovec iov[1] = { 103 readbuf, 104 sizeof readbuf, 105 }; 106 char name[MIDLIN]; 107 union { 108 struct { 109 struct cmsghdr cmhdr; 110 char cmdata[128 - sizeof(struct cmsghdr)]; 111 } cm; 112 char data[128]; 113 } cbuf; 114 #define control cbuf.data 115 struct msghdr msghdr = { 116 name, sizeof(name), 117 iov, sizeof(iov)/sizeof(iov[1]), 118 control, sizeof control, 119 0 /* flags */ 120 }; 121 122 tisink() 123 { 124 int x, s, pid, on = 1, loop = 0, n; 125 extern int errno; 126 127 try(socket, (AF_ISO, SOCK_SEQPACKET, 0),""); 128 129 s = x; 130 131 try(bind, (s, (struct sockaddr *) siso, siso->siso_len), ""); 132 133 /*try(setsockopt, (s, SOL_SOCKET, SO_DEBUG, &on, sizeof (on)), ""); */ 134 135 try(listen, (s, 5), ""); 136 if (intercept) { 137 try(setsockopt, 138 (s, SOL_TRANSPORT, TPOPT_INTERCEPT, &on, sizeof(on)), ""); 139 } 140 for(;;) { 141 int child, ns; 142 int addrlen = sizeof(faddr); 143 char childname[50]; 144 145 try (accept, (s, &faddr, &addrlen), ""); 146 ns = x; 147 dumpit("connection from:", &faddr, sizeof faddr); 148 if (mynamep || intercept) { 149 addrlen = sizeof(faddr); 150 try (getsockname, (ns, &faddr, &addrlen), ""); 151 dumpit("connected as:", &faddr, addrlen); 152 } 153 loop++; 154 if (loop > 3) myexit(0); 155 if (forkp) { 156 try(fork, (), ""); 157 } else 158 x = 0; 159 if (x == 0) { 160 long n, count = 0, cn, flags; 161 records = 0; 162 if (confp) { 163 msghdr.msg_iovlen = 0; 164 msghdr.msg_namelen = 0; 165 msghdr.msg_controllen = 166 cbuf.cm.cmhdr.cmsg_len = sizeof (cbuf.cm.cmhdr); 167 cbuf.cm.cmhdr.cmsg_level = SOL_TRANSPORT; 168 cbuf.cm.cmhdr.cmsg_type = TPOPT_CFRM_DATA; 169 n = sendmsg(ns, &msghdr, 0); 170 if (n <= 0) { 171 printf("confirm: errno is %d\n", errno); 172 fflush(stdout); 173 perror("Confirm error"); 174 } else { 175 dbprintf("confim ok\n"); 176 } 177 sleep(10); 178 } 179 for (;;) { 180 msghdr.msg_iovlen = 1; 181 msghdr.msg_controllen = sizeof(control); 182 iov->iov_len = sizeof(readbuf); 183 n = recvmsg(ns, &msghdr, 0); 184 flags = msghdr.msg_flags; 185 count++; 186 dbprintf("recvmsg from child %d got %d ctl %d flags %x\n", 187 getpid(), n, (cn = msghdr.msg_controllen), 188 flags); 189 fflush(stdout); 190 if (cn && verbose) 191 dumpit("control data:\n", control, cn); 192 if (n < 0) { 193 fprintf(stderr, "errno is %d\n", errno); 194 perror("recvmsg"); 195 /*sleep (10);*/ 196 break; 197 } else { 198 if (verbose) 199 dumpit("data:\n", readbuf, n); 200 } 201 if (echop) { 202 n = answerback(flags, n, ns); 203 } 204 if (flags & MSG_EOR) 205 records++; 206 if (playtag && n == sizeof(your_it) && (flags & MSG_EOR) 207 && bcmp(readbuf, your_it, n) == 0) { 208 printf("Answering back!!!!\n"); 209 answerback(flags, n, ns); 210 answerback(flags, n, ns); 211 } 212 errno = 0; 213 } 214 } 215 myexit(0); 216 } 217 } 218 answerback(flags, n, ns) 219 { 220 msghdr.msg_controllen = 0; 221 msghdr.msg_iovlen = 1; 222 iov->iov_len = n; 223 n = sendmsg(ns, &msghdr, flags); 224 dbprintf("echoed %d\n", n); 225 return n; 226 } 227 228 dumpit(what, where, n) 229 char *what; unsigned short *where; int n; 230 { 231 unsigned short *s = where; 232 unsigned short *z = where + (n+1)/2; 233 int count = 0; 234 printf(what); 235 while(s < z) { 236 count++; 237 printf("%x ",*s++); 238 if ((count & 15) == 0) 239 putchar('\n'); 240 } 241 if (count & 15) 242 putchar('\n'); 243 fflush(stdout); 244 } 245 myexit(n) 246 { 247 fflush(stderr); 248 printf("got %d records\n", records); 249 fflush(stdout); 250 exit(n); 251 } 252