1#!/bin/sh 2 3# 4# SPDX-License-Identifier: BSD-2-Clause 5# 6# Copyright (c) 2020 Peter Holm <pho@FreeBSD.org> 7# 8# Redistribution and use in source and binary forms, with or without 9# modification, are permitted provided that the following conditions 10# are met: 11# 1. Redistributions of source code must retain the above copyright 12# notice, this list of conditions and the following disclaimer. 13# 2. Redistributions in binary form must reproduce the above copyright 14# notice, this list of conditions and the following disclaimer in the 15# documentation and/or other materials provided with the distribution. 16# 17# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27# SUCH DAMAGE. 28# 29 30# sendfile(2) test with disk read errors 31# "panic: vm_page_readahead_finish: 0xfffffe000d88d758 is invalid" seen: 32# https://people.freebsd.org/~pho/stress/log/sendfile25.txt 33 34# Test scenario suggestion by chs@ 35# Fixed by 36 37[ `id -u` -ne 0 ] && echo "Must be root!" && exit 1 38kldstat | grep -q geom_nop || { gnop load 2>/dev/null || exit 0 && 39 notloaded=1; } 40gnop status || exit 1 41 42. ../default.cfg 43 44dir=/tmp 45odir=`pwd` 46cd $dir 47sed '1,/^EOF/d' < $odir/$0 > $dir/sendfile25.c 48mycc -o sendfile25 -Wall -Wextra -O0 -g sendfile25.c || exit 1 49cd $odir 50 51set -e 52mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint 53[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart 54 55mdconfig -a -t swap -s 2g -u $mdstart 56gnop create /dev/md$mdstart 57newfs $newfs_flags -n -b $((32 * 1024)) /dev/md$mdstart.nop > /dev/null 58mount /dev/md$mdstart.nop $mntpoint 59chmod 777 $mntpoint 60set +e 61 62dd if=/dev/zero of=$mntpoint/file bs=416k count=1 status=none 63start=`date +%s` 64echo 'Expect: 65 sendfile25: sendfile: sendfile25: read(), sendfile25.c:61: Broken pipe 66 Connection reset by peer' 67while [ $((`date +%s` - start)) -lt 10 ]; do 68 umount $mntpoint 69 mount /dev/md$mdstart.nop $mntpoint 70 ls -l $mntpoint > /dev/null 71 gnop configure -e 5 -r 1 /dev/md$mdstart.nop 72 /tmp/sendfile25 $mntpoint/file /dev/null 12345 73 gnop configure -e 5 -r 0 /dev/md$mdstart.nop 74done 75umount $mntpoint 76 77gnop destroy /dev/md$mdstart.nop 78mdconfig -d -u $mdstart 79[ $notloaded ] && gnop unload 80rm -f /tmp/sendfile25 /tmp/sendfile25.c 81 82exit 0 83EOF 84#include <sys/param.h> 85#include <sys/socket.h> 86#include <sys/stat.h> 87#include <err.h> 88#include <fcntl.h> 89#include <netdb.h> 90#include <netinet/in.h> 91#include <signal.h> 92#include <stdio.h> 93#include <stdlib.h> 94#include <string.h> 95#include <unistd.h> 96 97int port; 98char *inputFile; 99char *outputFile; 100int bufsize = 4096; 101 102static void 103reader(void) { 104 int tcpsock, msgsock; 105 int on; 106 socklen_t len; 107 struct sockaddr_in inetaddr, inetpeer; 108 int n, *buf, fd; 109 110 on = 1; 111 if ((tcpsock = socket(AF_INET, SOCK_STREAM, 0)) < 0) 112 err(1, "socket(), %s:%d", __FILE__, __LINE__); 113 114 if (setsockopt(tcpsock, 115 SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0) 116 err(1, "setsockopt(), %s:%d", __FILE__, __LINE__); 117 118 inetaddr.sin_family = AF_INET; 119 inetaddr.sin_addr.s_addr = INADDR_ANY; 120 inetaddr.sin_port = htons(port); 121 inetaddr.sin_len = sizeof(inetaddr); 122 123 if (bind(tcpsock, 124 (struct sockaddr *)&inetaddr, sizeof (inetaddr)) < 0) 125 err(1, "bind(), %s:%d", __FILE__, __LINE__); 126 127 if (listen(tcpsock, 5) < 0) 128 err(1, "listen(), %s:%d", __FILE__, __LINE__); 129 130 len = sizeof(inetpeer); 131 if ((msgsock = accept(tcpsock, 132 (struct sockaddr *)&inetpeer, &len)) < 0) 133 err(1, "accept(), %s:%d", __FILE__, __LINE__); 134 135 if ((buf = malloc(bufsize)) == NULL) 136 err(1, "malloc(%d), %s:%d", bufsize, __FILE__, __LINE__); 137 138 if ((fd = open(outputFile, O_RDWR | O_CREAT | O_TRUNC, 0640)) == -1) 139 err(1, "open(%s)", outputFile); 140 141 for (;;) { 142 if ((n = read(msgsock, buf, bufsize)) < 0) 143 err(1, "read(), %s:%d", __FILE__, __LINE__); 144 if (n == 0) 145 break; 146 147 if ((write(fd, buf, n)) != n) 148 err(1, "write"); 149 } 150 close(msgsock); 151 close(fd); 152 return; 153} 154 155static void 156writer(void) { 157 int tcpsock, on; 158 struct sockaddr_in inetaddr; 159 struct hostent *hostent; 160 struct stat statb; 161 off_t off = 0; 162 size_t size; 163 int i, r, fd; 164 165 on = 1; 166 for (i = 1; i < 5; i++) { 167 if ((tcpsock = socket(AF_INET, SOCK_STREAM, 0)) < 0) 168 err(1, "socket(), %s:%d", __FILE__, __LINE__); 169 170 if (setsockopt(tcpsock, 171 SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0) 172 err(1, "setsockopt(), %s:%d", __FILE__, __LINE__); 173 174 size = getpagesize() -4; 175 if (setsockopt(tcpsock, SOL_SOCKET, SO_SNDBUF, (void *)&size, 176 sizeof(size)) < 0) 177 err(1, "setsockopt(SO_SNDBUF), %s:%d", 178 __FILE__, __LINE__); 179 180 hostent = gethostbyname ("localhost"); 181 memcpy (&inetaddr.sin_addr.s_addr, hostent->h_addr, 182 sizeof (struct in_addr)); 183 184 inetaddr.sin_family = AF_INET; 185 inetaddr.sin_port = htons(port); 186 inetaddr.sin_len = sizeof(inetaddr); 187 188 r = connect(tcpsock, (struct sockaddr *) &inetaddr, 189 sizeof(inetaddr)); 190 if (r == 0) 191 break; 192 sleep(1); 193 close(tcpsock); 194 } 195 if (r < 0) 196 err(1, "connect(), %s:%d", __FILE__, __LINE__); 197 198 if (stat(inputFile, &statb) != 0) 199 err(1, "stat(%s)", inputFile); 200 201 if ((fd = open(inputFile, O_RDONLY)) == -1) 202 err(1, "open(%s)", inputFile); 203 204 off = 12 * 32 * 1024; 205 if (sendfile(fd, tcpsock, 0, statb.st_size, NULL, &off, 0) == -1) 206 err(1, "sendfile"); 207 208 return; 209} 210 211int 212main(int argc, char **argv) 213{ 214 pid_t pid; 215 216 if (argc != 4) { 217 fprintf(stderr, "Usage: %s <inputFile outputFile portNumber\n", 218 argv[0]); 219 return (1); 220 } 221 inputFile = argv[1]; 222 outputFile = argv[2]; 223 port = atoi(argv[3]); 224 225 if ((pid = fork()) == 0) { 226 writer(); 227 exit(EXIT_SUCCESS); 228 } else if (pid > 0) { 229 reader(); 230 kill(pid, SIGINT); 231 } else 232 err(1, "fork(), %s:%d", __FILE__, __LINE__); 233 234 return (0); 235} 236