1 #!/bin/bash 1 #!/bin/bash
2 # SPDX-License-Identifier: GPL-2.0 2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (C) 2022 Song Liu <song@kernel.org> 3 # Copyright (C) 2022 Song Liu <song@kernel.org>
4 4
5 . $(dirname $0)/functions.sh 5 . $(dirname $0)/functions.sh
6 6
7 MOD_LIVEPATCH=test_klp_livepatch 7 MOD_LIVEPATCH=test_klp_livepatch
8 8
9 setup_config 9 setup_config
10 10
11 # - load a livepatch and verifies the sysfs en 11 # - load a livepatch and verifies the sysfs entries work as expected
12 12
13 start_test "sysfs test" 13 start_test "sysfs test"
14 14
15 load_lp $MOD_LIVEPATCH 15 load_lp $MOD_LIVEPATCH
16 16
17 check_sysfs_rights "$MOD_LIVEPATCH" "" "drwxr- 17 check_sysfs_rights "$MOD_LIVEPATCH" "" "drwxr-xr-x"
18 check_sysfs_rights "$MOD_LIVEPATCH" "enabled" 18 check_sysfs_rights "$MOD_LIVEPATCH" "enabled" "-rw-r--r--"
19 check_sysfs_value "$MOD_LIVEPATCH" "enabled" 19 check_sysfs_value "$MOD_LIVEPATCH" "enabled" "1"
20 check_sysfs_rights "$MOD_LIVEPATCH" "force" "- 20 check_sysfs_rights "$MOD_LIVEPATCH" "force" "--w-------"
21 check_sysfs_rights "$MOD_LIVEPATCH" "replace" <<
22 check_sysfs_rights "$MOD_LIVEPATCH" "transitio 21 check_sysfs_rights "$MOD_LIVEPATCH" "transition" "-r--r--r--"
23 check_sysfs_value "$MOD_LIVEPATCH" "transitio 22 check_sysfs_value "$MOD_LIVEPATCH" "transition" "0"
24 check_sysfs_rights "$MOD_LIVEPATCH" "vmlinux/p 23 check_sysfs_rights "$MOD_LIVEPATCH" "vmlinux/patched" "-r--r--r--"
25 check_sysfs_value "$MOD_LIVEPATCH" "vmlinux/p 24 check_sysfs_value "$MOD_LIVEPATCH" "vmlinux/patched" "1"
26 25
27 disable_lp $MOD_LIVEPATCH 26 disable_lp $MOD_LIVEPATCH
28 27
29 unload_lp $MOD_LIVEPATCH 28 unload_lp $MOD_LIVEPATCH
30 29
31 check_result "% insmod test_modules/$MOD_LIVEP !! 30 check_result "% modprobe $MOD_LIVEPATCH
32 livepatch: enabling patch '$MOD_LIVEPATCH' 31 livepatch: enabling patch '$MOD_LIVEPATCH'
33 livepatch: '$MOD_LIVEPATCH': initializing patc 32 livepatch: '$MOD_LIVEPATCH': initializing patching transition
34 livepatch: '$MOD_LIVEPATCH': starting patching 33 livepatch: '$MOD_LIVEPATCH': starting patching transition
35 livepatch: '$MOD_LIVEPATCH': completing patchi 34 livepatch: '$MOD_LIVEPATCH': completing patching transition
36 livepatch: '$MOD_LIVEPATCH': patching complete 35 livepatch: '$MOD_LIVEPATCH': patching complete
37 % echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATC 36 % echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled
38 livepatch: '$MOD_LIVEPATCH': initializing unpa 37 livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
39 livepatch: '$MOD_LIVEPATCH': starting unpatchi 38 livepatch: '$MOD_LIVEPATCH': starting unpatching transition
40 livepatch: '$MOD_LIVEPATCH': completing unpatc 39 livepatch: '$MOD_LIVEPATCH': completing unpatching transition
41 livepatch: '$MOD_LIVEPATCH': unpatching comple 40 livepatch: '$MOD_LIVEPATCH': unpatching complete
42 % rmmod $MOD_LIVEPATCH" 41 % rmmod $MOD_LIVEPATCH"
43 42
44 start_test "sysfs test object/patched" 43 start_test "sysfs test object/patched"
45 44
46 MOD_LIVEPATCH=test_klp_callbacks_demo 45 MOD_LIVEPATCH=test_klp_callbacks_demo
47 MOD_TARGET=test_klp_callbacks_mod 46 MOD_TARGET=test_klp_callbacks_mod
48 load_lp $MOD_LIVEPATCH 47 load_lp $MOD_LIVEPATCH
49 48
50 # check the "patch" file changes as target mod 49 # check the "patch" file changes as target module loads/unloads
51 check_sysfs_value "$MOD_LIVEPATCH" "$MOD_TARG 50 check_sysfs_value "$MOD_LIVEPATCH" "$MOD_TARGET/patched" "0"
52 load_mod $MOD_TARGET 51 load_mod $MOD_TARGET
53 check_sysfs_value "$MOD_LIVEPATCH" "$MOD_TARG 52 check_sysfs_value "$MOD_LIVEPATCH" "$MOD_TARGET/patched" "1"
54 unload_mod $MOD_TARGET 53 unload_mod $MOD_TARGET
55 check_sysfs_value "$MOD_LIVEPATCH" "$MOD_TARG 54 check_sysfs_value "$MOD_LIVEPATCH" "$MOD_TARGET/patched" "0"
56 55
57 disable_lp $MOD_LIVEPATCH 56 disable_lp $MOD_LIVEPATCH
58 unload_lp $MOD_LIVEPATCH 57 unload_lp $MOD_LIVEPATCH
59 58
60 check_result "% insmod test_modules/test_klp_c !! 59 check_result "% modprobe test_klp_callbacks_demo
61 livepatch: enabling patch 'test_klp_callbacks_ 60 livepatch: enabling patch 'test_klp_callbacks_demo'
62 livepatch: 'test_klp_callbacks_demo': initiali 61 livepatch: 'test_klp_callbacks_demo': initializing patching transition
63 test_klp_callbacks_demo: pre_patch_callback: v 62 test_klp_callbacks_demo: pre_patch_callback: vmlinux
64 livepatch: 'test_klp_callbacks_demo': starting 63 livepatch: 'test_klp_callbacks_demo': starting patching transition
65 livepatch: 'test_klp_callbacks_demo': completi 64 livepatch: 'test_klp_callbacks_demo': completing patching transition
66 test_klp_callbacks_demo: post_patch_callback: 65 test_klp_callbacks_demo: post_patch_callback: vmlinux
67 livepatch: 'test_klp_callbacks_demo': patching 66 livepatch: 'test_klp_callbacks_demo': patching complete
68 % insmod test_modules/test_klp_callbacks_mod.k !! 67 % modprobe test_klp_callbacks_mod
69 livepatch: applying patch 'test_klp_callbacks_ 68 livepatch: applying patch 'test_klp_callbacks_demo' to loading module 'test_klp_callbacks_mod'
70 test_klp_callbacks_demo: pre_patch_callback: t 69 test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init
71 test_klp_callbacks_demo: post_patch_callback: 70 test_klp_callbacks_demo: post_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init
72 test_klp_callbacks_mod: test_klp_callbacks_mod 71 test_klp_callbacks_mod: test_klp_callbacks_mod_init
73 % rmmod test_klp_callbacks_mod 72 % rmmod test_klp_callbacks_mod
74 test_klp_callbacks_mod: test_klp_callbacks_mod 73 test_klp_callbacks_mod: test_klp_callbacks_mod_exit
75 test_klp_callbacks_demo: pre_unpatch_callback: 74 test_klp_callbacks_demo: pre_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away
76 livepatch: reverting patch 'test_klp_callbacks 75 livepatch: reverting patch 'test_klp_callbacks_demo' on unloading module 'test_klp_callbacks_mod'
77 test_klp_callbacks_demo: post_unpatch_callback 76 test_klp_callbacks_demo: post_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away
78 % echo 0 > /sys/kernel/livepatch/test_klp_call 77 % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo/enabled
79 livepatch: 'test_klp_callbacks_demo': initiali 78 livepatch: 'test_klp_callbacks_demo': initializing unpatching transition
80 test_klp_callbacks_demo: pre_unpatch_callback: 79 test_klp_callbacks_demo: pre_unpatch_callback: vmlinux
81 livepatch: 'test_klp_callbacks_demo': starting 80 livepatch: 'test_klp_callbacks_demo': starting unpatching transition
82 livepatch: 'test_klp_callbacks_demo': completi 81 livepatch: 'test_klp_callbacks_demo': completing unpatching transition
83 test_klp_callbacks_demo: post_unpatch_callback 82 test_klp_callbacks_demo: post_unpatch_callback: vmlinux
84 livepatch: 'test_klp_callbacks_demo': unpatchi 83 livepatch: 'test_klp_callbacks_demo': unpatching complete
85 % rmmod test_klp_callbacks_demo" 84 % rmmod test_klp_callbacks_demo"
86 <<
87 start_test "sysfs test replace enabled" <<
88 <<
89 MOD_LIVEPATCH=test_klp_atomic_replace <<
90 load_lp $MOD_LIVEPATCH replace=1 <<
91 <<
92 check_sysfs_rights "$MOD_LIVEPATCH" "replace" <<
93 check_sysfs_value "$MOD_LIVEPATCH" "replace" <<
94 <<
95 disable_lp $MOD_LIVEPATCH <<
96 unload_lp $MOD_LIVEPATCH <<
97 <<
98 check_result "% insmod test_modules/$MOD_LIVEP <<
99 livepatch: enabling patch '$MOD_LIVEPATCH' <<
100 livepatch: '$MOD_LIVEPATCH': initializing patc <<
101 livepatch: '$MOD_LIVEPATCH': starting patching <<
102 livepatch: '$MOD_LIVEPATCH': completing patchi <<
103 livepatch: '$MOD_LIVEPATCH': patching complete <<
104 % echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATC <<
105 livepatch: '$MOD_LIVEPATCH': initializing unpa <<
106 livepatch: '$MOD_LIVEPATCH': starting unpatchi <<
107 livepatch: '$MOD_LIVEPATCH': completing unpatc <<
108 livepatch: '$MOD_LIVEPATCH': unpatching comple <<
109 % rmmod $MOD_LIVEPATCH" <<
110 <<
111 start_test "sysfs test replace disabled" <<
112 <<
113 load_lp $MOD_LIVEPATCH replace=0 <<
114 <<
115 check_sysfs_rights "$MOD_LIVEPATCH" "replace" <<
116 check_sysfs_value "$MOD_LIVEPATCH" "replace" <<
117 <<
118 disable_lp $MOD_LIVEPATCH <<
119 unload_lp $MOD_LIVEPATCH <<
120 <<
121 check_result "% insmod test_modules/$MOD_LIVEP <<
122 livepatch: enabling patch '$MOD_LIVEPATCH' <<
123 livepatch: '$MOD_LIVEPATCH': initializing patc <<
124 livepatch: '$MOD_LIVEPATCH': starting patching <<
125 livepatch: '$MOD_LIVEPATCH': completing patchi <<
126 livepatch: '$MOD_LIVEPATCH': patching complete <<
127 % echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATC <<
128 livepatch: '$MOD_LIVEPATCH': initializing unpa <<
129 livepatch: '$MOD_LIVEPATCH': starting unpatchi <<
130 livepatch: '$MOD_LIVEPATCH': completing unpatc <<
131 livepatch: '$MOD_LIVEPATCH': unpatching comple <<
132 % rmmod $MOD_LIVEPATCH" <<
133 85
134 exit 0 86 exit 0
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