| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 1 | #!/bin/bash |
| 2 | # SPDX-License-Identifier: GPL-2.0 |
| 3 | # Copyright (C) 2018 Joe Lawrence <joe.lawrence@redhat.com> |
| 4 | |
| 5 | . $(dirname $0)/functions.sh |
| 6 | |
| 7 | MOD_LIVEPATCH=test_klp_livepatch |
| 8 | MOD_REPLACE=test_klp_atomic_replace |
| 9 | |
| 10 | set_dynamic_debug |
| 11 | |
| 12 | |
| 13 | # TEST: basic function patching |
| 14 | # - load a livepatch that modifies the output from /proc/cmdline and |
| 15 | # verify correct behavior |
| 16 | # - unload the livepatch and make sure the patch was removed |
| 17 | |
| 18 | echo -n "TEST: basic function patching ... " |
| 19 | dmesg -C |
| 20 | |
| 21 | load_lp $MOD_LIVEPATCH |
| 22 | |
| 23 | if [[ "$(cat /proc/cmdline)" != "$MOD_LIVEPATCH: this has been live patched" ]] ; then |
| 24 | echo -e "FAIL\n\n" |
| 25 | die "livepatch kselftest(s) failed" |
| 26 | fi |
| 27 | |
| 28 | disable_lp $MOD_LIVEPATCH |
| 29 | unload_lp $MOD_LIVEPATCH |
| 30 | |
| 31 | if [[ "$(cat /proc/cmdline)" == "$MOD_LIVEPATCH: this has been live patched" ]] ; then |
| 32 | echo -e "FAIL\n\n" |
| 33 | die "livepatch kselftest(s) failed" |
| 34 | fi |
| 35 | |
| 36 | check_result "% modprobe $MOD_LIVEPATCH |
| 37 | livepatch: enabling patch '$MOD_LIVEPATCH' |
| 38 | livepatch: '$MOD_LIVEPATCH': initializing patching transition |
| 39 | livepatch: '$MOD_LIVEPATCH': starting patching transition |
| 40 | livepatch: '$MOD_LIVEPATCH': completing patching transition |
| 41 | livepatch: '$MOD_LIVEPATCH': patching complete |
| 42 | % echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled |
| 43 | livepatch: '$MOD_LIVEPATCH': initializing unpatching transition |
| 44 | livepatch: '$MOD_LIVEPATCH': starting unpatching transition |
| 45 | livepatch: '$MOD_LIVEPATCH': completing unpatching transition |
| 46 | livepatch: '$MOD_LIVEPATCH': unpatching complete |
| 47 | % rmmod $MOD_LIVEPATCH" |
| 48 | |
| 49 | |
| 50 | # TEST: multiple livepatches |
| 51 | # - load a livepatch that modifies the output from /proc/cmdline and |
| 52 | # verify correct behavior |
| 53 | # - load another livepatch and verify that both livepatches are active |
| 54 | # - unload the second livepatch and verify that the first is still active |
| 55 | # - unload the first livepatch and verify none are active |
| 56 | |
| 57 | echo -n "TEST: multiple livepatches ... " |
| 58 | dmesg -C |
| 59 | |
| 60 | load_lp $MOD_LIVEPATCH |
| 61 | |
| 62 | grep 'live patched' /proc/cmdline > /dev/kmsg |
| 63 | grep 'live patched' /proc/meminfo > /dev/kmsg |
| 64 | |
| 65 | load_lp $MOD_REPLACE replace=0 |
| 66 | |
| 67 | grep 'live patched' /proc/cmdline > /dev/kmsg |
| 68 | grep 'live patched' /proc/meminfo > /dev/kmsg |
| 69 | |
| 70 | disable_lp $MOD_REPLACE |
| 71 | unload_lp $MOD_REPLACE |
| 72 | |
| 73 | grep 'live patched' /proc/cmdline > /dev/kmsg |
| 74 | grep 'live patched' /proc/meminfo > /dev/kmsg |
| 75 | |
| 76 | disable_lp $MOD_LIVEPATCH |
| 77 | unload_lp $MOD_LIVEPATCH |
| 78 | |
| 79 | grep 'live patched' /proc/cmdline > /dev/kmsg |
| 80 | grep 'live patched' /proc/meminfo > /dev/kmsg |
| 81 | |
| 82 | check_result "% modprobe $MOD_LIVEPATCH |
| 83 | livepatch: enabling patch '$MOD_LIVEPATCH' |
| 84 | livepatch: '$MOD_LIVEPATCH': initializing patching transition |
| 85 | livepatch: '$MOD_LIVEPATCH': starting patching transition |
| 86 | livepatch: '$MOD_LIVEPATCH': completing patching transition |
| 87 | livepatch: '$MOD_LIVEPATCH': patching complete |
| 88 | $MOD_LIVEPATCH: this has been live patched |
| 89 | % modprobe $MOD_REPLACE replace=0 |
| 90 | livepatch: enabling patch '$MOD_REPLACE' |
| 91 | livepatch: '$MOD_REPLACE': initializing patching transition |
| 92 | livepatch: '$MOD_REPLACE': starting patching transition |
| 93 | livepatch: '$MOD_REPLACE': completing patching transition |
| 94 | livepatch: '$MOD_REPLACE': patching complete |
| 95 | $MOD_LIVEPATCH: this has been live patched |
| 96 | $MOD_REPLACE: this has been live patched |
| 97 | % echo 0 > /sys/kernel/livepatch/$MOD_REPLACE/enabled |
| 98 | livepatch: '$MOD_REPLACE': initializing unpatching transition |
| 99 | livepatch: '$MOD_REPLACE': starting unpatching transition |
| 100 | livepatch: '$MOD_REPLACE': completing unpatching transition |
| 101 | livepatch: '$MOD_REPLACE': unpatching complete |
| 102 | % rmmod $MOD_REPLACE |
| 103 | $MOD_LIVEPATCH: this has been live patched |
| 104 | % echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled |
| 105 | livepatch: '$MOD_LIVEPATCH': initializing unpatching transition |
| 106 | livepatch: '$MOD_LIVEPATCH': starting unpatching transition |
| 107 | livepatch: '$MOD_LIVEPATCH': completing unpatching transition |
| 108 | livepatch: '$MOD_LIVEPATCH': unpatching complete |
| 109 | % rmmod $MOD_LIVEPATCH" |
| 110 | |
| 111 | |
| 112 | # TEST: atomic replace livepatch |
| 113 | # - load a livepatch that modifies the output from /proc/cmdline and |
| 114 | # verify correct behavior |
| 115 | # - load an atomic replace livepatch and verify that only the second is active |
| 116 | # - remove the first livepatch and verify that the atomic replace livepatch |
| 117 | # is still active |
| 118 | # - remove the atomic replace livepatch and verify that none are active |
| 119 | |
| 120 | echo -n "TEST: atomic replace livepatch ... " |
| 121 | dmesg -C |
| 122 | |
| 123 | load_lp $MOD_LIVEPATCH |
| 124 | |
| 125 | grep 'live patched' /proc/cmdline > /dev/kmsg |
| 126 | grep 'live patched' /proc/meminfo > /dev/kmsg |
| 127 | |
| 128 | load_lp $MOD_REPLACE replace=1 |
| 129 | |
| 130 | grep 'live patched' /proc/cmdline > /dev/kmsg |
| 131 | grep 'live patched' /proc/meminfo > /dev/kmsg |
| 132 | |
| 133 | unload_lp $MOD_LIVEPATCH |
| 134 | |
| 135 | grep 'live patched' /proc/cmdline > /dev/kmsg |
| 136 | grep 'live patched' /proc/meminfo > /dev/kmsg |
| 137 | |
| 138 | disable_lp $MOD_REPLACE |
| 139 | unload_lp $MOD_REPLACE |
| 140 | |
| 141 | grep 'live patched' /proc/cmdline > /dev/kmsg |
| 142 | grep 'live patched' /proc/meminfo > /dev/kmsg |
| 143 | |
| 144 | check_result "% modprobe $MOD_LIVEPATCH |
| 145 | livepatch: enabling patch '$MOD_LIVEPATCH' |
| 146 | livepatch: '$MOD_LIVEPATCH': initializing patching transition |
| 147 | livepatch: '$MOD_LIVEPATCH': starting patching transition |
| 148 | livepatch: '$MOD_LIVEPATCH': completing patching transition |
| 149 | livepatch: '$MOD_LIVEPATCH': patching complete |
| 150 | $MOD_LIVEPATCH: this has been live patched |
| 151 | % modprobe $MOD_REPLACE replace=1 |
| 152 | livepatch: enabling patch '$MOD_REPLACE' |
| 153 | livepatch: '$MOD_REPLACE': initializing patching transition |
| 154 | livepatch: '$MOD_REPLACE': starting patching transition |
| 155 | livepatch: '$MOD_REPLACE': completing patching transition |
| 156 | livepatch: '$MOD_REPLACE': patching complete |
| 157 | $MOD_REPLACE: this has been live patched |
| 158 | % rmmod $MOD_LIVEPATCH |
| 159 | $MOD_REPLACE: this has been live patched |
| 160 | % echo 0 > /sys/kernel/livepatch/$MOD_REPLACE/enabled |
| 161 | livepatch: '$MOD_REPLACE': initializing unpatching transition |
| 162 | livepatch: '$MOD_REPLACE': starting unpatching transition |
| 163 | livepatch: '$MOD_REPLACE': completing unpatching transition |
| 164 | livepatch: '$MOD_REPLACE': unpatching complete |
| 165 | % rmmod $MOD_REPLACE" |
| 166 | |
| 167 | |
| 168 | exit 0 |