tools/testing/selftests/livepatch/test-state.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3 # Copyright (C) 2019 SUSE
   4
   5 . $(dirname $0)/functions.sh
   6
   7 MOD_LIVEPATCH=test_klp_state
   8 MOD_LIVEPATCH2=test_klp_state2
   9 MOD_LIVEPATCH3=test_klp_state3
  10
  11 setup_config
  12
  13
  14 # Load and remove a module that modifies the system state
  15
  16 start_test "system state modification"
  17
  18 load_lp $MOD_LIVEPATCH
  19 disable_lp $MOD_LIVEPATCH
  20 unload_lp $MOD_LIVEPATCH
  21
  22 check_result "% insmod test_modules/$MOD_LIVEPATCH.ko
  23 livepatch: enabling patch '$MOD_LIVEPATCH'
  24 livepatch: '$MOD_LIVEPATCH': initializing patching transition
  25 $MOD_LIVEPATCH: pre_patch_callback: vmlinux
  26 $MOD_LIVEPATCH: allocate_loglevel_state: allocating space to store console_loglevel
  27 livepatch: '$MOD_LIVEPATCH': starting patching transition
  28 livepatch: '$MOD_LIVEPATCH': completing patching transition
  29 $MOD_LIVEPATCH: post_patch_callback: vmlinux
  30 $MOD_LIVEPATCH: fix_console_loglevel: fixing console_loglevel
  31 livepatch: '$MOD_LIVEPATCH': patching complete
  32 % echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled
  33 livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
  34 $MOD_LIVEPATCH: pre_unpatch_callback: vmlinux
  35 $MOD_LIVEPATCH: restore_console_loglevel: restoring console_loglevel
  36 livepatch: '$MOD_LIVEPATCH': starting unpatching transition
  37 livepatch: '$MOD_LIVEPATCH': completing unpatching transition
  38 $MOD_LIVEPATCH: post_unpatch_callback: vmlinux
  39 $MOD_LIVEPATCH: free_loglevel_state: freeing space for the stored console_loglevel
  40 livepatch: '$MOD_LIVEPATCH': unpatching complete
  41 % rmmod $MOD_LIVEPATCH"
  42
  43
  44 # Take over system state change by a cumulative patch
  45
  46 start_test "taking over system state modification"
  47
  48 load_lp $MOD_LIVEPATCH
  49 load_lp $MOD_LIVEPATCH2
  50 unload_lp $MOD_LIVEPATCH
  51 disable_lp $MOD_LIVEPATCH2
  52 unload_lp $MOD_LIVEPATCH2
  53
  54 check_result "% insmod test_modules/$MOD_LIVEPATCH.ko
  55 livepatch: enabling patch '$MOD_LIVEPATCH'
  56 livepatch: '$MOD_LIVEPATCH': initializing patching transition
  57 $MOD_LIVEPATCH: pre_patch_callback: vmlinux
  58 $MOD_LIVEPATCH: allocate_loglevel_state: allocating space to store console_loglevel
  59 livepatch: '$MOD_LIVEPATCH': starting patching transition
  60 livepatch: '$MOD_LIVEPATCH': completing patching transition
  61 $MOD_LIVEPATCH: post_patch_callback: vmlinux
  62 $MOD_LIVEPATCH: fix_console_loglevel: fixing console_loglevel
  63 livepatch: '$MOD_LIVEPATCH': patching complete
  64 % insmod test_modules/$MOD_LIVEPATCH2.ko
  65 livepatch: enabling patch '$MOD_LIVEPATCH2'
  66 livepatch: '$MOD_LIVEPATCH2': initializing patching transition
  67 $MOD_LIVEPATCH2: pre_patch_callback: vmlinux
  68 $MOD_LIVEPATCH2: allocate_loglevel_state: space to store console_loglevel already allocated
  69 livepatch: '$MOD_LIVEPATCH2': starting patching transition
  70 livepatch: '$MOD_LIVEPATCH2': completing patching transition
  71 $MOD_LIVEPATCH2: post_patch_callback: vmlinux
  72 $MOD_LIVEPATCH2: fix_console_loglevel: taking over the console_loglevel change
  73 livepatch: '$MOD_LIVEPATCH2': patching complete
  74 % rmmod $MOD_LIVEPATCH
  75 % echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH2/enabled
  76 livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition
  77 $MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux
  78 $MOD_LIVEPATCH2: restore_console_loglevel: restoring console_loglevel
  79 livepatch: '$MOD_LIVEPATCH2': starting unpatching transition
  80 livepatch: '$MOD_LIVEPATCH2': completing unpatching transition
  81 $MOD_LIVEPATCH2: post_unpatch_callback: vmlinux
  82 $MOD_LIVEPATCH2: free_loglevel_state: freeing space for the stored console_loglevel
  83 livepatch: '$MOD_LIVEPATCH2': unpatching complete
  84 % rmmod $MOD_LIVEPATCH2"
  85
  86
  87 # Take over system state change by a cumulative patch
  88
  89 start_test "compatible cumulative livepatches"
  90
  91 load_lp $MOD_LIVEPATCH2
  92 load_lp $MOD_LIVEPATCH3
  93 unload_lp $MOD_LIVEPATCH2
  94 load_lp $MOD_LIVEPATCH2
  95 disable_lp $MOD_LIVEPATCH2
  96 unload_lp $MOD_LIVEPATCH2
  97 unload_lp $MOD_LIVEPATCH3
  98
  99 check_result "% insmod test_modules/$MOD_LIVEPATCH2.ko
 100 livepatch: enabling patch '$MOD_LIVEPATCH2'
 101 livepatch: '$MOD_LIVEPATCH2': initializing patching transition
 102 $MOD_LIVEPATCH2: pre_patch_callback: vmlinux
 103 $MOD_LIVEPATCH2: allocate_loglevel_state: allocating space to store console_loglevel
 104 livepatch: '$MOD_LIVEPATCH2': starting patching transition
 105 livepatch: '$MOD_LIVEPATCH2': completing patching transition
 106 $MOD_LIVEPATCH2: post_patch_callback: vmlinux
 107 $MOD_LIVEPATCH2: fix_console_loglevel: fixing console_loglevel
 108 livepatch: '$MOD_LIVEPATCH2': patching complete
 109 % insmod test_modules/$MOD_LIVEPATCH3.ko
 110 livepatch: enabling patch '$MOD_LIVEPATCH3'
 111 livepatch: '$MOD_LIVEPATCH3': initializing patching transition
 112 $MOD_LIVEPATCH3: pre_patch_callback: vmlinux
 113 $MOD_LIVEPATCH3: allocate_loglevel_state: space to store console_loglevel already allocated
 114 livepatch: '$MOD_LIVEPATCH3': starting patching transition
 115 livepatch: '$MOD_LIVEPATCH3': completing patching transition
 116 $MOD_LIVEPATCH3: post_patch_callback: vmlinux
 117 $MOD_LIVEPATCH3: fix_console_loglevel: taking over the console_loglevel change
 118 livepatch: '$MOD_LIVEPATCH3': patching complete
 119 % rmmod $MOD_LIVEPATCH2
 120 % insmod test_modules/$MOD_LIVEPATCH2.ko
 121 livepatch: enabling patch '$MOD_LIVEPATCH2'
 122 livepatch: '$MOD_LIVEPATCH2': initializing patching transition
 123 $MOD_LIVEPATCH2: pre_patch_callback: vmlinux
 124 $MOD_LIVEPATCH2: allocate_loglevel_state: space to store console_loglevel already allocated
 125 livepatch: '$MOD_LIVEPATCH2': starting patching transition
 126 livepatch: '$MOD_LIVEPATCH2': completing patching transition
 127 $MOD_LIVEPATCH2: post_patch_callback: vmlinux
 128 $MOD_LIVEPATCH2: fix_console_loglevel: taking over the console_loglevel change
 129 livepatch: '$MOD_LIVEPATCH2': patching complete
 130 % echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH2/enabled
 131 livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition
 132 $MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux
 133 $MOD_LIVEPATCH2: restore_console_loglevel: restoring console_loglevel
 134 livepatch: '$MOD_LIVEPATCH2': starting unpatching transition
 135 livepatch: '$MOD_LIVEPATCH2': completing unpatching transition
 136 $MOD_LIVEPATCH2: post_unpatch_callback: vmlinux
 137 $MOD_LIVEPATCH2: free_loglevel_state: freeing space for the stored console_loglevel
 138 livepatch: '$MOD_LIVEPATCH2': unpatching complete
 139 % rmmod $MOD_LIVEPATCH2
 140 % rmmod $MOD_LIVEPATCH3"
 141
 142
 143 # Failure caused by incompatible cumulative livepatches
 144
 145 start_test "incompatible cumulative livepatches"
 146
 147 load_lp $MOD_LIVEPATCH2
 148 load_failing_mod $MOD_LIVEPATCH
 149 disable_lp $MOD_LIVEPATCH2
 150 unload_lp $MOD_LIVEPATCH2
 151
 152 check_result "% insmod test_modules/$MOD_LIVEPATCH2.ko
 153 livepatch: enabling patch '$MOD_LIVEPATCH2'
 154 livepatch: '$MOD_LIVEPATCH2': initializing patching transition
 155 $MOD_LIVEPATCH2: pre_patch_callback: vmlinux
 156 $MOD_LIVEPATCH2: allocate_loglevel_state: allocating space to store console_loglevel
 157 livepatch: '$MOD_LIVEPATCH2': starting patching transition
 158 livepatch: '$MOD_LIVEPATCH2': completing patching transition
 159 $MOD_LIVEPATCH2: post_patch_callback: vmlinux
 160 $MOD_LIVEPATCH2: fix_console_loglevel: fixing console_loglevel
 161 livepatch: '$MOD_LIVEPATCH2': patching complete
 162 % insmod test_modules/$MOD_LIVEPATCH.ko
 163 livepatch: Livepatch patch ($MOD_LIVEPATCH) is not compatible with the already installed livepatches.
 164 insmod: ERROR: could not insert module test_modules/$MOD_LIVEPATCH.ko: Invalid parameters
 165 % echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH2/enabled
 166 livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition
 167 $MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux
 168 $MOD_LIVEPATCH2: restore_console_loglevel: restoring console_loglevel
 169 livepatch: '$MOD_LIVEPATCH2': starting unpatching transition
 170 livepatch: '$MOD_LIVEPATCH2': completing unpatching transition
 171 $MOD_LIVEPATCH2: post_unpatch_callback: vmlinux
 172 $MOD_LIVEPATCH2: free_loglevel_state: freeing space for the stored console_loglevel
 173 livepatch: '$MOD_LIVEPATCH2': unpatching complete
 174 % rmmod $MOD_LIVEPATCH2"
 175
 176 exit 0