tests/btrfs/214

   1 #! /bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3 # Copyright (C) 2020 SUSE Linux Products GmbH. All Rights Reserved.
   4 #
   5 # FS QA Test 214
   6 #
   7 # Test if the file capabilities aren't lost after full and incremental send
   8 #
   9 seq=`basename $0`
  10 seqres=$RESULT_DIR/$seq
  11 echo "QA output created by $seq"
  12
  13 here=`pwd`
  14 tmp=/tmp/$$
  15 status=1        # failure is the default!
  16 trap "cleanup; exit \$status" 0 1 2 3 15
  17
  18 # get standard environment, filters and checks
  19 . ./common/rc
  20 . ./common/filter
  21
  22 # remove previous $seqres.full before test
  23 rm -f $seqres.full
  24
  25 _supported_fs btrfs
  26 _require_scratch
  27 _require_command "$SETCAP_PROG" setcap
  28 _require_command "$GETCAP_PROG" getcap
  29
  30 FS1="$SCRATCH_MNT/fs1"
  31 FS2="$SCRATCH_MNT/fs2"
  32
  33 cleanup()
  34 {
  35         cd /
  36         rm -f $tmp.*
  37 }
  38
  39 check_capabilities()
  40 {
  41         local file
  42         local cap
  43         local ret
  44         file="$1"
  45         cap="$2"
  46         ret=$(_getcap "$file")
  47         if [ -z "$ret" ]; then
  48                 echo "$ret"
  49                 echo "missing capability in file $file"
  50         fi
  51         if [[ "$ret" != *$cap* ]]; then
  52                 echo "$cap"
  53                 echo "Capabilities do not match. Output: $ret"
  54         fi
  55 }
  56
  57 setup()
  58 {
  59         _scratch_mkfs >/dev/null
  60         _scratch_mount
  61
  62         $BTRFS_UTIL_PROG subvolume create "$FS1" > /dev/null
  63         $BTRFS_UTIL_PROG subvolume create "$FS2" > /dev/null
  64 }
  65
  66 full_nocap_inc_withcap_send()
  67 {
  68         local ret
  69
  70         setup
  71
  72         # Test full send containing a file without capabilities
  73         touch "$FS1/foo.bar"
  74         $BTRFS_UTIL_PROG subvolume snapshot -r "$FS1" "$FS1/snap_init" >/dev/null
  75         $BTRFS_UTIL_PROG send "$FS1/snap_init" -q | $BTRFS_UTIL_PROG receive "$FS2" -q
  76         # ensure that we don't have capabilities set
  77         ret=$(_getcap "$FS2/snap_init/foo.bar")
  78         if [ -n "$ret" ]; then
  79                 echo "File contains capabilities when it shouldn't"
  80         fi
  81
  82         # Test if incremental send brings the newly added capability
  83         $SETCAP_PROG "cap_sys_ptrace+ep cap_sys_nice+ep" "$FS1/foo.bar"
  84         $BTRFS_UTIL_PROG subvolume snapshot -r "$FS1" "$FS1/snap_inc" >/dev/null
  85         $BTRFS_UTIL_PROG send -p "$FS1/snap_init" "$FS1/snap_inc" -q | \
  86                                         $BTRFS_UTIL_PROG receive "$FS2" -q
  87         check_capabilities "$FS2/snap_inc/foo.bar" "cap_sys_ptrace,cap_sys_nice=ep"
  88
  89         _scratch_unmount
  90 }
  91
  92 roundtrip_send()
  93 {
  94         local files
  95
  96         # files should include foo.bar
  97         files="$1"
  98
  99         setup
 100
 101         # create files on fs1, must contain foo.bar
 102         for f in $files; do
 103                 touch "$FS1/$f"
 104         done
 105
 106         # Test full send, checking if the receiving side keeps the capabilities
 107         $SETCAP_PROG "cap_sys_ptrace+ep cap_sys_nice+ep" "$FS1/foo.bar"
 108         $BTRFS_UTIL_PROG subvolume snapshot -r "$FS1" "$FS1/snap_init" >/dev/null
 109         $BTRFS_UTIL_PROG send "$FS1/snap_init" -q | $BTRFS_UTIL_PROG receive "$FS2" -q
 110         check_capabilities "$FS2/snap_init/foo.bar" "cap_sys_ptrace,cap_sys_nice=ep"
 111
 112         # Test incremental send with different owner/group but same capabilities
 113         chgrp 100 "$FS1/foo.bar"
 114         $SETCAP_PROG "cap_sys_ptrace+ep cap_sys_nice+ep" "$FS1/foo.bar"
 115         $BTRFS_UTIL_PROG subvolume snapshot -r "$FS1" "$FS1/snap_inc" >/dev/null
 116         check_capabilities "$FS1/snap_inc/foo.bar" "cap_sys_ptrace,cap_sys_nice=ep"
 117         $BTRFS_UTIL_PROG send -p "$FS1/snap_init" "$FS1/snap_inc" -q | \
 118                                 $BTRFS_UTIL_PROG receive "$FS2" -q
 119         check_capabilities "$FS2/snap_inc/foo.bar" "cap_sys_ptrace,cap_sys_nice=ep"
 120
 121         # Test capabilities after incremental send with different group and capabilities
 122         chgrp 0 "$FS1/foo.bar"
 123         $SETCAP_PROG "cap_sys_time+ep cap_syslog+ep" "$FS1/foo.bar"
 124         $BTRFS_UTIL_PROG subvolume snapshot -r "$FS1" "$FS1/snap_inc2" >/dev/null
 125         check_capabilities "$FS1/snap_inc2/foo.bar" "cap_sys_time,cap_syslog=ep"
 126         $BTRFS_UTIL_PROG send -p "$FS1/snap_inc" "$FS1/snap_inc2" -q | \
 127                                 $BTRFS_UTIL_PROG receive "$FS2"  -q
 128         check_capabilities "$FS2/snap_inc2/foo.bar" "cap_sys_time,cap_syslog=ep"
 129
 130         _scratch_unmount
 131 }
 132
 133 # real QA test starts here
 134
 135 echo "Test full send + file without capabilities, then incremental send bringing a new capability"
 136 full_nocap_inc_withcap_send
 137
 138 echo "Testing if foo.bar alone can keep its capabilities"
 139 roundtrip_send "foo.bar"
 140
 141 echo "Test foo.bar being the first item among other files"
 142 roundtrip_send "foo.bar foo.bax foo.baz"
 143
 144 echo "Test foo.bar with objectid between two other files"
 145 roundtrip_send "foo1 foo.bar foo3"
 146
 147 echo "Test foo.bar being the last item among other files"
 148 roundtrip_send "foo1 foo2 foo.bar"
 149
 150 status=0
 151 exit