external/bsd/am-utils/dist/scripts/test-attrcache.in

   1 #!/bin/sh
   2 # Script to test the attribute cache behavior of the local OS client.
   3 # If this script fails, it means that Amd cannot turn off the attrcache
   4 # reliably on this host, and Amd therefore may not run reliably.  See
   5 # the README.attrcache file distributed with this am-utils.
   6 #       -Erez Zadok, September 29, 2005
   7
   8 # set PATH (must install am-utils first)
   9 prefix=@prefix@
  10 exec_prefix=@exec_prefix@
  11 PATH=@sbindir@:@bindir@:/usr/ucb:/usr/bin:/bin:${PATH}
  12 export PATH
  13
  14 # test if amd is running
  15 amq -p > /dev/null 2>&1
  16 if test $? = 0
  17 then
  18         echo "### Amd already running... please shutdown Amd first"
  19         exit 1
  20 fi
  21
  22 mapfile="/tmp/amd.testmap.$$"
  23 logfile="/var/log/amd"
  24 delay=1
  25 a=/a
  26
  27 CreateMap1 () {
  28         echo "### Creating correct map"
  29         cat - >$mapfile <<EOF
  30 a       type:=link;fs:=/tmp/a
  31 EOF
  32 }
  33
  34 CreateMap2 () {
  35         echo "### Creating weird map"
  36         cat - >$mapfile <<EOF
  37 a       type:=link;fs:=/tmp/b
  38 EOF
  39 }
  40
  41 StopAMD () {
  42         ctl-amd stop
  43 # do not delete files we may need to use to debug Amd
  44 #       rm -f /tmp/a /tmp/b $mapfile $logfile
  45 }
  46
  47 touch /tmp/a
  48 touch /tmp/b
  49
  50 CreateMap1
  51 echo amd -x all -D all -r -l $logfile $a $mapfile -cache:=mapdefault,sync
  52 amd -x all -D all -r -l $logfile $a $mapfile -cache:=mapdefault,sync
  53 sleep 3                         # give amd chance to start properly
  54 amq
  55 inode_a=`ls -lLi /tmp/a | awk '{print $1}'`
  56 inode_b=`ls -lLi /tmp/b | awk '{print $1}'`
  57 ls -lLi $a/a
  58 ls -lLi $a/b
  59 ls -l $mapfile
  60
  61 # how many times to try until we call it a success...
  62 maxtry=10
  63 while test $maxtry -gt 0
  64 do
  65         echo "$maxtry tries left ..."
  66         let maxtry=maxtry-1
  67         amq
  68         CreateMap1
  69         sleep $delay
  70
  71         ls -l $mapfile
  72         echo "### looking at a... should get a"
  73         ino=`ls -lLi $a/a | awk '{print $1}'`
  74         if test -z "$ino"
  75         then
  76                 ls -li $a/a
  77                 amq
  78                 amq -m
  79                 stat $a
  80                 echo "a link does not exist!"
  81                 StopAMD
  82                 exit 1
  83         fi
  84         if test $ino -ne $inode_a
  85         then
  86                 ls -li $a/a
  87                 amq
  88                 amq -m
  89                 stat $a
  90                 echo "a link does not point to A!"
  91                 StopAMD
  92                 exit 1
  93         fi
  94
  95 # Here is the main trick we try: force amd to flush one entry, then
  96 # change the amd map on disk, and then see if the kernel will have
  97 # flushed the attribute cache; if it did, then Amd will see the
  98 # correctly changed map entry.
  99
 100         amq -u $a/a
 101         sleep $delay
 102         stat $a
 103
 104         CreateMap2
 105         sleep $delay
 106
 107         ls -l $mapfile
 108         echo "### looking at a... should get b"
 109         ino=`ls -lLi $a/a | awk '{print $1}'`
 110         if test -z "$ino"
 111         then
 112                 ls -li $a/a
 113                 amq
 114                 amq -m
 115                 stat $a
 116                 echo "a link does not exist!"
 117                 StopAMD
 118                 exit 1
 119         fi
 120         if test $ino -ne $inode_b
 121         then
 122                 ls -li $a/a
 123                 amq
 124                 amq -m
 125                 stat $a
 126                 echo "a link does not point to B!"
 127                 StopAMD
 128                 exit 1
 129         fi
 130
 131         amq -u $a/a
 132         sleep $delay
 133         stat $a
 134 done
 135 StopAMD