| 1 | |
| 2 | |
| 3 | |
| 4 | |
| 5 |
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| 6 | . $(dirname $0)/functions.sh
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| 7 |
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| 8 | grep -q kprobe_ftrace_ops /proc/kallsyms || skip "test-kprobe requires CONFIG_KPROBES_ON_FTRACE"
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| 9 |
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| 10 | MOD_LIVEPATCH=test_klp_livepatch
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| 11 | MOD_KPROBE=test_klp_kprobe
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| 12 |
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| 13 | setup_config
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| 14 |
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| 15 | |
| 16 | |
| 17 | |
| 18 |
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| 19 | start_test "livepatch interaction with kprobed function with post_handler"
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| 20 |
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| 21 | echo 1 > "$SYSFS_KPROBES_DIR/enabled"
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| 22 |
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| 23 | load_mod $MOD_KPROBE has_post_handler=y
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| 24 | load_failing_mod $MOD_LIVEPATCH
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| 25 | unload_mod $MOD_KPROBE
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| 26 |
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| 27 | check_result "% insmod test_modules/test_klp_kprobe.ko has_post_handler=y
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| 28 | % insmod test_modules/$MOD_LIVEPATCH.ko
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| 29 | livepatch: enabling patch '$MOD_LIVEPATCH'
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| 30 | livepatch: '$MOD_LIVEPATCH': initializing patching transition
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| 31 | livepatch: failed to register ftrace handler for function 'cmdline_proc_show' (-16)
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| 32 | livepatch: failed to patch object 'vmlinux'
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| 33 | livepatch: failed to enable patch '$MOD_LIVEPATCH'
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| 34 | livepatch: '$MOD_LIVEPATCH': canceling patching transition, going to unpatch
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| 35 | livepatch: '$MOD_LIVEPATCH': completing unpatching transition
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| 36 | livepatch: '$MOD_LIVEPATCH': unpatching complete
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| 37 | insmod: ERROR: could not insert module test_modules/$MOD_LIVEPATCH.ko: Device or resource busy
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| 38 | % rmmod test_klp_kprobe"
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| 39 |
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| 40 | start_test "livepatch interaction with kprobed function without post_handler"
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| 41 |
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| 42 | load_mod $MOD_KPROBE has_post_handler=n
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| 43 | load_lp $MOD_LIVEPATCH
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| 44 |
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| 45 | unload_mod $MOD_KPROBE
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| 46 | disable_lp $MOD_LIVEPATCH
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| 47 | unload_lp $MOD_LIVEPATCH
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| 48 |
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| 49 | check_result "% insmod test_modules/test_klp_kprobe.ko has_post_handler=n
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| 50 | % insmod test_modules/$MOD_LIVEPATCH.ko
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| 51 | livepatch: enabling patch '$MOD_LIVEPATCH'
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| 52 | livepatch: '$MOD_LIVEPATCH': initializing patching transition
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| 53 | livepatch: '$MOD_LIVEPATCH': starting patching transition
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| 54 | livepatch: '$MOD_LIVEPATCH': completing patching transition
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| 55 | livepatch: '$MOD_LIVEPATCH': patching complete
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| 56 | % rmmod test_klp_kprobe
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| 57 | % echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled
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| 58 | livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
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| 59 | livepatch: '$MOD_LIVEPATCH': starting unpatching transition
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| 60 | livepatch: '$MOD_LIVEPATCH': completing unpatching transition
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| 61 | livepatch: '$MOD_LIVEPATCH': unpatching complete
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| 62 | % rmmod $MOD_LIVEPATCH"
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| 63 |
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| 64 | exit 0
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