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# Copy of sendfile8.sh with size validation added. 30 31# No problems seen (after 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/sendfile10.c 40mycc -o sendfile10 -Wall -Wextra -O0 -g sendfile10.c || exit 1 41rm -f sendfile10.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 $newfs_flags -n md${mdstart}$part > /dev/null 49mount /dev/md${mdstart}$part $mntpoint 50 51cd $mntpoint 52dd if=/dev/random of=template bs=1m count=50 status=none 53/tmp/sendfile10 template in out 76543 54s=$? 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/sendfile10 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 volatile off_t *share; 87static int port; 88static char *input, *output; 89 90#define BUFSIZE 4096 91#define MX (100 * 1024 * 1024) 92#define OSZ 1 93#define PARALLEL 1 94#define RUNTIME (2 * 60) 95#define SZ 0 96 97static void 98mess(void) 99{ 100 off_t length; 101 int fd; 102 103 if ((fd = open(input, O_RDWR)) == -1) 104 err(1, "open(%s)", input); 105 length = arc4random() % MX; 106 if (ftruncate(fd, length) == -1) 107 err(1, "truncate(%jd)", length); 108 share[SZ] = length; 109 close(fd); 110} 111 112static void 113reader(void) { 114 off_t t __unused; 115 int tcpsock, msgsock; 116 int on; 117 socklen_t len; 118 struct sockaddr_in inetaddr, inetpeer; 119 int n, *buf, fd; 120 121 on = 1; 122 if ((tcpsock = socket(AF_INET, SOCK_STREAM, 0)) < 0) 123 err(1, "socket(), %s:%d", __FILE__, __LINE__); 124 125 if (setsockopt(tcpsock, 126 SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0) 127 err(1, "setsockopt(), %s:%d", __FILE__, __LINE__); 128 129 inetaddr.sin_family = AF_INET; 130 inetaddr.sin_addr.s_addr = INADDR_ANY; 131 inetaddr.sin_port = htons(port); 132 inetaddr.sin_len = sizeof(inetaddr); 133 134 if (bind(tcpsock, 135 (struct sockaddr *)&inetaddr, sizeof (inetaddr)) < 0) 136 err(1, "bind(), %s:%d", __FILE__, __LINE__); 137 138 if (listen(tcpsock, 5) < 0) 139 err(1, "listen(), %s:%d", __FILE__, __LINE__); 140 141 len = sizeof(inetpeer); 142 alarm(10); 143 if ((msgsock = accept(tcpsock, 144 (struct sockaddr *)&inetpeer, &len)) < 0) 145 err(1, "accept(), %s:%d", __FILE__, __LINE__); 146 alarm(0); 147 148 t = 0; 149 if ((buf = malloc(BUFSIZE)) == NULL) 150 err(1, "malloc(%d), %s:%d", BUFSIZE, __FILE__, __LINE__); 151 152 if ((fd = open(output, O_RDWR | O_CREAT | O_TRUNC, 0640)) == -1) 153 err(1, "open(%s)", output); 154 155 for (;;) { 156 if ((n = read(msgsock, buf, BUFSIZE)) < 0) 157 err(1, "read(), %s:%d", __FILE__, __LINE__); 158 t += n; 159 if (n == 0) break; 160 161 if ((write(fd, buf, n)) != n) 162 err(1, "write"); 163 } 164 close(msgsock); 165 close(fd); 166#if 0 167 if (t != share[SZ] && t != share[OSZ]) { 168 fprintf(stderr, "1) Send size %lu, original size %lu, " 169 "receive size %lu\n", 170 (unsigned long)share[SZ], 171 (unsigned long)share[OSZ], 172 (unsigned long)t); 173 exit(1); 174 } 175#endif 176 return; 177} 178 179static void 180writer(void) { 181 struct sockaddr_in inetaddr; 182 struct hostent *hostent; 183 struct stat statb; 184 off_t off = 0; 185 size_t size; 186 int i, r, fd; 187 int tcpsock, on; 188 189 on = 1; 190 for (i = 1; i < 5; i++) { 191 if ((tcpsock = socket(AF_INET, SOCK_STREAM, 0)) < 0) 192 err(1, "socket(), %s:%d", __FILE__, __LINE__); 193 194 if (setsockopt(tcpsock, 195 SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0) 196 err(1, "setsockopt(), %s:%d", __FILE__, __LINE__); 197 198 size = getpagesize() -4; 199 if (setsockopt(tcpsock, 200 SOL_SOCKET, SO_SNDBUF, (void *)&size, sizeof(size)) < 0) 201 err(1, "setsockopt(SO_SNDBUF), %s:%d", __FILE__, 202 __LINE__); 203 204 hostent = gethostbyname ("localhost"); 205 memcpy (&inetaddr.sin_addr.s_addr, hostent->h_addr, 206 sizeof (struct in_addr)); 207 208 inetaddr.sin_family = AF_INET; 209 inetaddr.sin_port = htons(port); 210 inetaddr.sin_len = sizeof(inetaddr); 211 212 r = connect(tcpsock, (struct sockaddr *) &inetaddr, 213 sizeof(inetaddr)); 214 if (r == 0) 215 break; 216 sleep(1); 217 close(tcpsock); 218 } 219 if (r < 0) 220 err(1, "connect(), %s:%d", __FILE__, __LINE__); 221 222 if ((fd = open(input, O_RDONLY)) == -1) 223 err(1, "open(%s)", input); 224 225 if (fstat(fd, &statb) != 0) 226 err(1, "stat(%s)", input); 227 share[SZ] = statb.st_size; 228 if (sendfile(fd, tcpsock, 0, statb.st_size, NULL, &off, 0) == -1) 229 err(1, "sendfile"); 230 close(fd); 231 close(tcpsock); 232 233 return; 234} 235 236static void 237test(void) 238{ 239 pid_t pid; 240 241 if ((pid = fork()) == 0) { 242 writer(); 243 _exit(0); 244 } 245 reader(); 246 kill(pid, SIGINT); 247 if (waitpid(pid, NULL, 0) != pid) 248 err(1, "waitpid(%d)", pid); 249 250 _exit(0); 251} 252 253int 254main(int argc, char *argv[]) 255{ 256 struct stat statin, statorig, statout; 257 size_t len; 258 time_t start; 259 int e, i, pids[PARALLEL], status; 260 char help[80], *template; 261 262 if (argc != 5) { 263 fprintf(stderr, "Usage: %s <template> <input file> " 264 "<output file> <port>\n", argv[0]); 265 exit(1); 266 } 267 template = argv[1]; 268 input = argv[2]; 269 output = argv[3]; 270 port = atoi(argv[4]); 271 snprintf(help, sizeof(help), "cp %s %s", template, input); 272 e = 0; 273 len = PAGE_SIZE; 274 if ((share = mmap(NULL, len, PROT_READ | PROT_WRITE, 275 MAP_ANON | MAP_SHARED, -1, 0)) == MAP_FAILED) 276 err(1, "mmap"); 277 278 start = time(NULL); 279 while ((time(NULL) - start) < RUNTIME && e == 0) { 280 system(help); 281 if (stat(input, &statin) == -1) 282 err(1, "stat(%s)", input); 283 share[OSZ] = statin.st_size; 284 for (i = 0; i < PARALLEL; i++) { 285 if ((pids[i] = fork()) == 0) 286 test(); 287 } 288 usleep(arc4random() % 10000); 289 mess(); 290 for (i = 0; i < PARALLEL; i++) { 291 if (waitpid(pids[i], &status, 0) == -1) 292 err(1, "waitpid(%d)", pids[i]); 293 e += status == 0 ? 0 : 1; 294 } 295 if (stat(template, &statorig) == -1) 296 err(1, "stat(%s)", input); 297 if (stat(input, &statin) == -1) 298 err(1, "stat(%s)", input); 299 if (stat(output, &statout) == -1) 300 err(1, "stat(%s)", output); 301 if (statout.st_size >= MX) { 302 fprintf(stderr, "Send size %lu, original size %lu, " 303 "receive size %lu\n", 304 (unsigned long)statin.st_size, 305 (unsigned long)statorig.st_size, 306 (unsigned long)statout.st_size); 307 system("ls -l | grep -v total"); 308 exit(1); 309 } 310 } 311 312 return (e); 313} 314