18a272653SPeter Holm#!/bin/sh 28a272653SPeter Holm 38a272653SPeter Holm# 48a272653SPeter Holm# Copyright (c) 2017 Dell EMC Isilon 58a272653SPeter Holm# All rights reserved. 68a272653SPeter Holm# 78a272653SPeter Holm# Redistribution and use in source and binary forms, with or without 88a272653SPeter Holm# modification, are permitted provided that the following conditions 98a272653SPeter Holm# are met: 108a272653SPeter Holm# 1. Redistributions of source code must retain the above copyright 118a272653SPeter Holm# notice, this list of conditions and the following disclaimer. 128a272653SPeter Holm# 2. Redistributions in binary form must reproduce the above copyright 138a272653SPeter Holm# notice, this list of conditions and the following disclaimer in the 148a272653SPeter Holm# documentation and/or other materials provided with the distribution. 158a272653SPeter Holm# 168a272653SPeter Holm# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 178a272653SPeter Holm# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 188a272653SPeter Holm# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 198a272653SPeter Holm# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 208a272653SPeter Holm# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 218a272653SPeter Holm# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 228a272653SPeter Holm# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 238a272653SPeter Holm# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 248a272653SPeter Holm# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 258a272653SPeter Holm# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 268a272653SPeter Holm# SUCH DAMAGE. 278a272653SPeter Holm# 288a272653SPeter Holm 298a272653SPeter Holm# Test nfsv4 delegations. Scenario suggestion by kib. 308a272653SPeter Holm# "(nfsdelegation), uid 0, was killed: text file modification" seen. 318a272653SPeter Holm# Fixed by r316745 328a272653SPeter Holm 338a272653SPeter Holm[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 348a272653SPeter Holm 358a272653SPeter Holm. ../default.cfg 368a272653SPeter Holm 378a272653SPeter Holm[ -z "$nfs_export" ] && exit 0 388a272653SPeter Holmping -c 2 `echo $nfs_export | sed 's/:.*//'` > /dev/null 2>&1 || 398a272653SPeter Holm exit 0 408a272653SPeter Holm 418a272653SPeter Holmhere=`pwd` 428a272653SPeter Holmcd /tmp 438a272653SPeter Holmsed '1,/^EOF/d' < $here/$0 > nfsdelegation.c 448a272653SPeter Holmmycc -o nfsdelegation -Wall -Wextra -O0 nfsdelegation.c || exit 1 458a272653SPeter Holmrm -f nfsdelegation.c 468a272653SPeter Holm 478a272653SPeter Holm[ `sysctl -n sysctl vfs.timestamp_precision` -ne 3 ] && 488a272653SPeter Holm echo "vfs.timestamp_precision must be set to 3" 498a272653SPeter Holm[ "`sysctl -ni vfs.nfsd.issue_delegations`" != "1" ] && 508a272653SPeter Holm { echo "vfs.nfsd.issue_delegations is not enabled"; exit 0; } 518a272653SPeter Holmpgrep -q nfscbd || { echo "nfscbd is not running"; exit 0; } 528a272653SPeter Holm 538a272653SPeter Holmmount | grep "$mntpoint" | grep -q nfs && umount $mntpoint 548a272653SPeter Holmopt="-o nocto" 558a272653SPeter Holmopt="$opt -o nolockd -o nfsv4" 568a272653SPeter Holmmount $opt $nfs_export $mntpoint || exit 1 578a272653SPeter Holmsleep .2 588a272653SPeter Holm 598a272653SPeter Holmwdir=$mntpoint/nfsdelegation.`jot -rc 8 a z | tr -d '\n'`/nfsdelegation 608a272653SPeter Holmmkdir -p $wdir || exit 1 618a272653SPeter Holm 628a272653SPeter Holmdelegs=0 638a272653SPeter Holms=0 648a272653SPeter Holm(cd $wdir; /tmp/nfsdelegation) & 658a272653SPeter Holmwhile kill -0 $! 2>/dev/null; do 668a272653SPeter Holm r=`nfsstat -ec | grep -A1 Delegs | tail -1 | awk '{print $5}'` 678a272653SPeter Holm [ $r -gt $delegs ] && { delegs=$r; break; } 688a272653SPeter Holmdone 698a272653SPeter Holmwait 708a272653SPeter Holm[ $delegs -eq 0 ] && { echo "No delegations detected"; s=2; } 718a272653SPeter Holm 728a272653SPeter Holmrm -rf $wdir 738a272653SPeter Holmumount $mntpoint 748a272653SPeter Holmwhile mount | grep "$mntpoint " | grep -q nfs; do 758a272653SPeter Holm umount -f $mntpoint 768a272653SPeter Holmdone 778a272653SPeter Holmtail -3 /var/log/messages | grep -m1 nfsdelegation: && s=2 788a272653SPeter Holmrm -f /tmp/nfsdelegation 798a272653SPeter Holmexit $s 808a272653SPeter HolmEOF 818a272653SPeter Holm#include <sys/param.h> 828a272653SPeter Holm#include <sys/mman.h> 838a272653SPeter Holm#include <sys/stat.h> 848a272653SPeter Holm#include <sys/wait.h> 858a272653SPeter Holm 868a272653SPeter Holm#include <err.h> 878a272653SPeter Holm#include <errno.h> 888a272653SPeter Holm#include <fcntl.h> 898a272653SPeter Holm#include <stdio.h> 908a272653SPeter Holm#include <stdlib.h> 918a272653SPeter Holm#include <string.h> 928a272653SPeter Holm#include <unistd.h> 938a272653SPeter Holm 948a272653SPeter Holm#define LOOPS 100 958a272653SPeter Holm#define INPUTFILE "/bin/sleep" 968a272653SPeter Holm#define PARALLEL 3 978a272653SPeter Holm 988a272653SPeter Holmstatic volatile u_int *share; 998a272653SPeter Holm 1008a272653SPeter Holmstatic int 1018a272653SPeter Holmtmmap(int idx) 1028a272653SPeter Holm{ 1038a272653SPeter Holm struct stat statbuf; 1048a272653SPeter Holm pid_t epid, pid; 1058a272653SPeter Holm int i; 1068a272653SPeter Holm int fdout; 1078a272653SPeter Holm char *cmdline[3], *dst, file[128], help[80]; 1088a272653SPeter Holm 1098a272653SPeter Holm pid = getpid(); 1108a272653SPeter Holm cmdline[1] = ".01"; 1118a272653SPeter Holm cmdline[2] = 0; 1128a272653SPeter Holm for (i = 0; i < LOOPS; i++) { 1138a272653SPeter Holm sprintf(file,"nfsdelegation.p%05d.%05d", pid, i); 1148a272653SPeter Holm cmdline[0] = file; 1158a272653SPeter Holm 1168a272653SPeter Holm snprintf(help, sizeof(help), "cp %s %s; chmod 777 %s", INPUTFILE, file, file); 1178a272653SPeter Holm system(help); 1188a272653SPeter Holm share[idx] = 0; 1198a272653SPeter Holm if ((epid = fork()) == 0) { 1208a272653SPeter Holm alarm(60); 1218a272653SPeter Holm while (share[idx] == 0) 1228a272653SPeter Holm usleep(100); 1238a272653SPeter Holm if (execve(cmdline[0], cmdline, NULL) == -1) 1248a272653SPeter Holm err(1, "execve"); 1258a272653SPeter Holm } 1268a272653SPeter Holm 1278a272653SPeter Holm if ((fdout = open(file, O_RDWR)) < 0) 1288a272653SPeter Holm err(1, "open(%s)", file); 1298a272653SPeter Holm if (fstat(fdout, &statbuf) < 0) 1308a272653SPeter Holm err(1, "fstat error"); 1318a272653SPeter Holm 1328a272653SPeter Holm if ((dst = mmap(0, statbuf.st_size, PROT_READ | PROT_WRITE | 1338a272653SPeter Holm MAP_PRIVATE, MAP_SHARED, fdout, 0)) == (caddr_t) - 1) 1348a272653SPeter Holm err(1, "mmap error for output"); 1358a272653SPeter Holm 1368a272653SPeter Holm dst[statbuf.st_size] = 1; 1378a272653SPeter Holm 1388a272653SPeter Holm close(fdout); 1398a272653SPeter Holm if (munmap(dst, statbuf.st_size) == -1) 1408a272653SPeter Holm err(1, "munmap"); 1418a272653SPeter Holm share[idx] = 1; 1428a272653SPeter Holm if (waitpid(epid, NULL, 0) != epid) 1438a272653SPeter Holm err(1, "waitpid(%d)", epid); 1448a272653SPeter Holm } 1458a272653SPeter Holm 1468a272653SPeter Holm _exit(0); 1478a272653SPeter Holm} 1488a272653SPeter Holm 1498a272653SPeter Holmint 1508a272653SPeter Holmmain(void) 1518a272653SPeter Holm{ 1528a272653SPeter Holm size_t len; 1538a272653SPeter Holm int i; 1548a272653SPeter Holm 1558a272653SPeter Holm len = PAGE_SIZE; 1568a272653SPeter Holm if ((share = mmap(NULL, len, PROT_READ | PROT_WRITE, 1578a272653SPeter Holm MAP_ANON | MAP_SHARED, -1, 0)) == MAP_FAILED) 1588a272653SPeter Holm err(1, "mmap"); 1598a272653SPeter Holm for (i = 0; i < PARALLEL; i++) { 1608a272653SPeter Holm if (fork() == 0) 1618a272653SPeter Holm tmmap(i); 1628a272653SPeter Holm } 1638a272653SPeter Holm 1648a272653SPeter Holm for (i = 0; i < PARALLEL; i++) { 1658a272653SPeter Holm wait(NULL); 1668a272653SPeter Holm } 1678a272653SPeter Holm 1688a272653SPeter Holm return (0); 1698a272653SPeter Holm} 170