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, *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 if ((buf = malloc(BUFSIZE)) == NULL) 141 err(1, "malloc(%d), %s:%d", BUFSIZE, __FILE__, __LINE__); 142 143 if ((fd = open(output, O_RDWR | O_CREAT | O_TRUNC, 0640)) == -1) 144 err(1, "open(%s)", output); 145 146 for (;;) { 147 if ((n = read(msgsock, buf, BUFSIZE)) < 0) 148 err(1, "read(), %s:%d", __FILE__, __LINE__); 149 if (n == 0) break; 150 151 if ((write(fd, buf, n)) != n) 152 err(1, "write"); 153 } 154 close(msgsock); 155 close(fd); 156 return; 157} 158 159static void 160writer(void) { 161 struct sockaddr_in inetaddr; 162 struct hostent *hostent; 163 struct stat statb; 164 off_t off = 0; 165 size_t size; 166 int i, r, fd; 167 int tcpsock, on; 168 169 on = 1; 170 for (i = 1; i < 5; i++) { 171 if ((tcpsock = socket(AF_INET, SOCK_STREAM, 0)) < 0) 172 err(1, "socket(), %s:%d", __FILE__, __LINE__); 173 174 if (setsockopt(tcpsock, 175 SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0) 176 err(1, "setsockopt(), %s:%d", __FILE__, __LINE__); 177 178 size = getpagesize() -4; 179 if (setsockopt(tcpsock, 180 SOL_SOCKET, SO_SNDBUF, (void *)&size, sizeof(size)) < 0) 181 err(1, "setsockopt(SO_SNDBUF), %s:%d", __FILE__, 182 __LINE__); 183 184 hostent = gethostbyname ("localhost"); 185 memcpy (&inetaddr.sin_addr.s_addr, hostent->h_addr, 186 sizeof (struct in_addr)); 187 188 inetaddr.sin_family = AF_INET; 189 inetaddr.sin_port = htons(port); 190 inetaddr.sin_len = sizeof(inetaddr); 191 192 r = connect(tcpsock, (struct sockaddr *) &inetaddr, 193 sizeof(inetaddr)); 194 if (r == 0) 195 break; 196 sleep(1); 197 close(tcpsock); 198 } 199 if (r < 0) 200 err(1, "connect(), %s:%d", __FILE__, __LINE__); 201 202 if (stat(input, &statb) != 0) 203 err(1, "stat(%s)", input); 204 205 if ((fd = open(input, O_RDONLY)) == -1) 206 err(1, "open(%s)", input); 207 208 if (sendfile(fd, tcpsock, 0, statb.st_size, NULL, &off, 0) == -1) 209 err(1, "sendfile"); 210 211 return; 212} 213 214static void 215test(void) 216{ 217 pid_t pid; 218 219 if ((pid = fork()) == 0) { 220 writer(); 221 _exit(0); 222 } 223 reader(); 224 kill(pid, SIGINT); 225 if (waitpid(pid, NULL, 0) != pid) 226 err(1, "waitpid(%d)", pid); 227 228 _exit(0); 229} 230 231int 232main(int argc, char *argv[]) 233{ 234 time_t start; 235 int e, i, j, pids[PARALLEL], status; 236 237 if (argc != 4) { 238 fprintf(stderr, "Usage: %s <input file> <output file>\n", 239 argv[0]); 240 exit(1); 241 } 242 input = argv[1]; 243 output = argv[2]; 244 port = atoi(argv[3]); 245 e = 0; 246 247 start = time(NULL); 248 while ((time(NULL) - start) < RUNTIME && e == 0) { 249 for (i = 0; i < PARALLEL; i++) { 250 if ((pids[i] = fork()) == 0) 251 test(); 252 } 253 for (j = 0; j < 100; j++) { 254 mess(); 255 usleep(arc4random() % 10000); 256 } 257 for (i = 0; i < PARALLEL; i++) { 258 if (waitpid(pids[i], &status, 0) == -1) 259 err(1, "waitpid(%d)", pids[i]); 260 e += status == 0 ? 0 : 1; 261 } 262 } 263 264 return (e); 265} 266