1#!/bin/sh 2 3# 4# Copyright (c) 2017 Dell EMC Isilon 5# All rights reserved. 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26# SUCH DAMAGE. 27# 28 29# sendfile(2) + parallel file size change. Bug 217789. 30# "panic: Assertion size > 0 failed at ../../../kern/subr_vmem.c:1082" seen: 31# Fixed in r315910 32 33. ../default.cfg 34[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 35 36dir=/tmp 37odir=`pwd` 38cd $dir 39sed '1,/^EOF/d' < $odir/$0 > $dir/sendfile8.c 40mycc -o sendfile8 -Wall -Wextra -O0 -g sendfile8.c || exit 1 41rm -f sendfile8.c 42cd $odir 43 44mount | grep "on $mntpoint " | grep -q /dev/md && umount -f $mntpoint 45[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart 46mdconfig -a -t swap -s 1g -u $mdstart || exit 1 47bsdlabel -w md$mdstart auto 48newfs $newfs_flags md${mdstart}$part > /dev/null 49mount /dev/md${mdstart}$part $mntpoint 50 51cd $mntpoint 52dd if=/dev/random of=in bs=1m count=50 status=none 53/tmp/sendfile8 in out 76543 54s=$? 55cd $odir 56 57for i in `jot 6`; do 58 mount | grep -q "on $mntpoint " || break 59 umount $mntpoint && break || sleep 10 60done 61[ $i -eq 6 ] && exit 1 62mdconfig -d -u $mdstart 63rm -rf /tmp/sendfile8 64exit $s 65 66EOF 67#include <sys/param.h> 68#include <sys/mman.h> 69#include <sys/socket.h> 70#include <sys/stat.h> 71#include <sys/wait.h> 72 73#include <netinet/in.h> 74 75#include <err.h> 76#include <errno.h> 77#include <fcntl.h> 78#include <netdb.h> 79#include <signal.h> 80#include <stdio.h> 81#include <stdlib.h> 82#include <string.h> 83#include <time.h> 84#include <unistd.h> 85 86static int port; 87static char *input, *output; 88 89#define BUFSIZE 4096 90#define PARALLEL 1 91#define RUNTIME (1 * 60) 92 93static void 94mess(void) 95{ 96 off_t length; 97 int fd; 98 99 if ((fd = open(input, O_RDWR)) == -1) 100 err(1, "open(%s)", input); 101 length = arc4random() % 100 * 1024 * 1024; 102 if (ftruncate(fd, length) == -1) 103 err(1, "truncate(%jd)", length); 104 close(fd); 105} 106 107static void 108reader(void) { 109 struct sockaddr_in inetaddr, inetpeer; 110 socklen_t len; 111 int tcpsock, msgsock; 112 int on; 113 int n, t, *buf, fd; 114 115 on = 1; 116 if ((tcpsock = socket(AF_INET, SOCK_STREAM, 0)) < 0) 117 err(1, "socket(), %s:%d", __FILE__, __LINE__); 118 119 if (setsockopt(tcpsock, 120 SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0) 121 err(1, "setsockopt(), %s:%d", __FILE__, __LINE__); 122 123 inetaddr.sin_family = AF_INET; 124 inetaddr.sin_addr.s_addr = INADDR_ANY; 125 inetaddr.sin_port = htons(port); 126 inetaddr.sin_len = sizeof(inetaddr); 127 128 if (bind(tcpsock, 129 (struct sockaddr *)&inetaddr, sizeof (inetaddr)) < 0) 130 err(1, "bind(), %s:%d", __FILE__, __LINE__); 131 132 if (listen(tcpsock, 5) < 0) 133 err(1, "listen(), %s:%d", __FILE__, __LINE__); 134 135 len = sizeof(inetpeer); 136 if ((msgsock = accept(tcpsock, 137 (struct sockaddr *)&inetpeer, &len)) < 0) 138 err(1, "accept(), %s:%d", __FILE__, __LINE__); 139 140 t = 0; 141 if ((buf = malloc(BUFSIZE)) == NULL) 142 err(1, "malloc(%d), %s:%d", BUFSIZE, __FILE__, __LINE__); 143 144 if ((fd = open(output, O_RDWR | O_CREAT | O_TRUNC, 0640)) == -1) 145 err(1, "open(%s)", output); 146 147 for (;;) { 148 if ((n = read(msgsock, buf, BUFSIZE)) < 0) 149 err(1, "read(), %s:%d", __FILE__, __LINE__); 150 t += n; 151 if (n == 0) break; 152 153 if ((write(fd, buf, n)) != n) 154 err(1, "write"); 155 } 156 close(msgsock); 157 close(fd); 158 return; 159} 160 161static void 162writer(void) { 163 struct sockaddr_in inetaddr; 164 struct hostent *hostent; 165 struct stat statb; 166 off_t off = 0; 167 size_t size; 168 int i, r, fd; 169 int tcpsock, on; 170 171 on = 1; 172 for (i = 1; i < 5; i++) { 173 if ((tcpsock = socket(AF_INET, SOCK_STREAM, 0)) < 0) 174 err(1, "socket(), %s:%d", __FILE__, __LINE__); 175 176 if (setsockopt(tcpsock, 177 SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0) 178 err(1, "setsockopt(), %s:%d", __FILE__, __LINE__); 179 180 size = getpagesize() -4; 181 if (setsockopt(tcpsock, 182 SOL_SOCKET, SO_SNDBUF, (void *)&size, sizeof(size)) < 0) 183 err(1, "setsockopt(SO_SNDBUF), %s:%d", __FILE__, 184 __LINE__); 185 186 hostent = gethostbyname ("localhost"); 187 memcpy (&inetaddr.sin_addr.s_addr, hostent->h_addr, 188 sizeof (struct in_addr)); 189 190 inetaddr.sin_family = AF_INET; 191 inetaddr.sin_port = htons(port); 192 inetaddr.sin_len = sizeof(inetaddr); 193 194 r = connect(tcpsock, (struct sockaddr *) &inetaddr, 195 sizeof(inetaddr)); 196 if (r == 0) 197 break; 198 sleep(1); 199 close(tcpsock); 200 } 201 if (r < 0) 202 err(1, "connect(), %s:%d", __FILE__, __LINE__); 203 204 if (stat(input, &statb) != 0) 205 err(1, "stat(%s)", input); 206 207 if ((fd = open(input, O_RDONLY)) == -1) 208 err(1, "open(%s)", input); 209 210 if (sendfile(fd, tcpsock, 0, statb.st_size, NULL, &off, 0) == -1) 211 err(1, "sendfile"); 212 213 return; 214} 215 216static void 217test(void) 218{ 219 pid_t pid; 220 221 if ((pid = fork()) == 0) { 222 writer(); 223 _exit(0); 224 } 225 reader(); 226 kill(pid, SIGINT); 227 if (waitpid(pid, NULL, 0) != pid) 228 err(1, "waitpid(%d)", pid); 229 230 _exit(0); 231} 232 233int 234main(int argc, char *argv[]) 235{ 236 time_t start; 237 int e, i, j, pids[PARALLEL], status; 238 239 if (argc != 4) { 240 fprintf(stderr, "Usage: %s <input file> <output file>\n", 241 argv[0]); 242 exit(1); 243 } 244 input = argv[1]; 245 output = argv[2]; 246 port = atoi(argv[3]); 247 e = 0; 248 249 start = time(NULL); 250 while ((time(NULL) - start) < RUNTIME && e == 0) { 251 for (i = 0; i < PARALLEL; i++) { 252 if ((pids[i] = fork()) == 0) 253 test(); 254 } 255 for (j = 0; j < 100; j++) { 256 mess(); 257 usleep(arc4random() % 10000); 258 } 259 for (i = 0; i < PARALLEL; i++) { 260 if (waitpid(pids[i], &status, 0) == -1) 261 err(1, "waitpid(%d)", pids[i]); 262 e += status == 0 ? 0 : 1; 263 } 264 } 265 266 return (e); 267} 268