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

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livepatch: Selftests of the API for tracking system state changes Four selftests for the new API. Link: http://lkml.kernel.org/r/20191030154313.13263-6-pmladek@suse.com To: Jiri Kosina <jikos@kernel.org> Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Cc: Nicolai Stange <nstange@suse.de> Cc: live-patching@vger.kernel.org Cc: linux-kernel@vger.kernel.org Acked-by: Miroslav Benes <mbenes@suse.cz> Acked-by: Joe Lawrence <joe.lawrence@redhat.com> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-30 16:43:13 +01:00
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (C) 2019 SUSE
. $(dirname $0)/functions.sh
MOD_LIVEPATCH=test_klp_state
MOD_LIVEPATCH2=test_klp_state2
MOD_LIVEPATCH3=test_klp_state3
selftests: livepatch: Fix it to do root uid check and skip livepatch test configures the system and debug environment to run tests. Some of these actions fail without root access and test dumps several permission denied messages before it exits. Fix test-state.sh to call setup_config instead of set_dynamic_debug as suggested by Petr Mladek <pmladek@suse.com> Fix it to check root uid and exit with skip code instead. Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> Acked-by: Joe Lawrence <joe.lawrence@redhat.com> Reviewed-by: Petr Mladek <pmladek@suse.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-16 12:18:40 -07:00
setup_config
livepatch: Selftests of the API for tracking system state changes Four selftests for the new API. Link: http://lkml.kernel.org/r/20191030154313.13263-6-pmladek@suse.com To: Jiri Kosina <jikos@kernel.org> Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Cc: Nicolai Stange <nstange@suse.de> Cc: live-patching@vger.kernel.org Cc: linux-kernel@vger.kernel.org Acked-by: Miroslav Benes <mbenes@suse.cz> Acked-by: Joe Lawrence <joe.lawrence@redhat.com> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-30 16:43:13 +01:00
selftests/livepatch: Don't clear dmesg when running tests Inspired by commit f131d9edc29d ("selftests/lkdtm: Don't clear dmesg when running tests"), keep a reference dmesg copy when beginning each test. This way check_result() can compare against the initial copy rather than relying upon an empty log. Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com> Reviewed-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Reviewed-by: Yannick Cote <ycote@redhat.com> Reviewed-by: Petr Mladek <pmladek@suse.com> Acked-by: Miroslav Benes <mbenes@suse.cz> Signed-off-by: Petr Mladek <pmladek@suse.com> Link: https://lore.kernel.org/r/20200618181040.21132-2-joe.lawrence@redhat.com
2020-06-18 14:10:38 -04:00
# Load and remove a module that modifies the system state
start_test "system state modification"
livepatch: Selftests of the API for tracking system state changes Four selftests for the new API. Link: http://lkml.kernel.org/r/20191030154313.13263-6-pmladek@suse.com To: Jiri Kosina <jikos@kernel.org> Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Cc: Nicolai Stange <nstange@suse.de> Cc: live-patching@vger.kernel.org Cc: linux-kernel@vger.kernel.org Acked-by: Miroslav Benes <mbenes@suse.cz> Acked-by: Joe Lawrence <joe.lawrence@redhat.com> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-30 16:43:13 +01:00
load_lp $MOD_LIVEPATCH
disable_lp $MOD_LIVEPATCH
unload_lp $MOD_LIVEPATCH
check_result "% modprobe $MOD_LIVEPATCH
livepatch: enabling patch '$MOD_LIVEPATCH'
livepatch: '$MOD_LIVEPATCH': initializing patching transition
$MOD_LIVEPATCH: pre_patch_callback: vmlinux
$MOD_LIVEPATCH: allocate_loglevel_state: allocating space to store console_loglevel
livepatch: '$MOD_LIVEPATCH': starting patching transition
livepatch: '$MOD_LIVEPATCH': completing patching transition
$MOD_LIVEPATCH: post_patch_callback: vmlinux
$MOD_LIVEPATCH: fix_console_loglevel: fixing console_loglevel
livepatch: '$MOD_LIVEPATCH': patching complete
% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled
livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
$MOD_LIVEPATCH: pre_unpatch_callback: vmlinux
$MOD_LIVEPATCH: restore_console_loglevel: restoring console_loglevel
livepatch: '$MOD_LIVEPATCH': starting unpatching transition
livepatch: '$MOD_LIVEPATCH': completing unpatching transition
$MOD_LIVEPATCH: post_unpatch_callback: vmlinux
$MOD_LIVEPATCH: free_loglevel_state: freeing space for the stored console_loglevel
livepatch: '$MOD_LIVEPATCH': unpatching complete
% rmmod $MOD_LIVEPATCH"
selftests/livepatch: Don't clear dmesg when running tests Inspired by commit f131d9edc29d ("selftests/lkdtm: Don't clear dmesg when running tests"), keep a reference dmesg copy when beginning each test. This way check_result() can compare against the initial copy rather than relying upon an empty log. Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com> Reviewed-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Reviewed-by: Yannick Cote <ycote@redhat.com> Reviewed-by: Petr Mladek <pmladek@suse.com> Acked-by: Miroslav Benes <mbenes@suse.cz> Signed-off-by: Petr Mladek <pmladek@suse.com> Link: https://lore.kernel.org/r/20200618181040.21132-2-joe.lawrence@redhat.com
2020-06-18 14:10:38 -04:00
# Take over system state change by a cumulative patch
livepatch: Selftests of the API for tracking system state changes Four selftests for the new API. Link: http://lkml.kernel.org/r/20191030154313.13263-6-pmladek@suse.com To: Jiri Kosina <jikos@kernel.org> Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Cc: Nicolai Stange <nstange@suse.de> Cc: live-patching@vger.kernel.org Cc: linux-kernel@vger.kernel.org Acked-by: Miroslav Benes <mbenes@suse.cz> Acked-by: Joe Lawrence <joe.lawrence@redhat.com> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-30 16:43:13 +01:00
selftests/livepatch: Don't clear dmesg when running tests Inspired by commit f131d9edc29d ("selftests/lkdtm: Don't clear dmesg when running tests"), keep a reference dmesg copy when beginning each test. This way check_result() can compare against the initial copy rather than relying upon an empty log. Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com> Reviewed-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Reviewed-by: Yannick Cote <ycote@redhat.com> Reviewed-by: Petr Mladek <pmladek@suse.com> Acked-by: Miroslav Benes <mbenes@suse.cz> Signed-off-by: Petr Mladek <pmladek@suse.com> Link: https://lore.kernel.org/r/20200618181040.21132-2-joe.lawrence@redhat.com
2020-06-18 14:10:38 -04:00
start_test "taking over system state modification"
livepatch: Selftests of the API for tracking system state changes Four selftests for the new API. Link: http://lkml.kernel.org/r/20191030154313.13263-6-pmladek@suse.com To: Jiri Kosina <jikos@kernel.org> Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Cc: Nicolai Stange <nstange@suse.de> Cc: live-patching@vger.kernel.org Cc: linux-kernel@vger.kernel.org Acked-by: Miroslav Benes <mbenes@suse.cz> Acked-by: Joe Lawrence <joe.lawrence@redhat.com> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-30 16:43:13 +01:00
load_lp $MOD_LIVEPATCH
load_lp $MOD_LIVEPATCH2
unload_lp $MOD_LIVEPATCH
disable_lp $MOD_LIVEPATCH2
unload_lp $MOD_LIVEPATCH2
check_result "% modprobe $MOD_LIVEPATCH
livepatch: enabling patch '$MOD_LIVEPATCH'
livepatch: '$MOD_LIVEPATCH': initializing patching transition
$MOD_LIVEPATCH: pre_patch_callback: vmlinux
$MOD_LIVEPATCH: allocate_loglevel_state: allocating space to store console_loglevel
livepatch: '$MOD_LIVEPATCH': starting patching transition
livepatch: '$MOD_LIVEPATCH': completing patching transition
$MOD_LIVEPATCH: post_patch_callback: vmlinux
$MOD_LIVEPATCH: fix_console_loglevel: fixing console_loglevel
livepatch: '$MOD_LIVEPATCH': patching complete
% modprobe $MOD_LIVEPATCH2
livepatch: enabling patch '$MOD_LIVEPATCH2'
livepatch: '$MOD_LIVEPATCH2': initializing patching transition
$MOD_LIVEPATCH2: pre_patch_callback: vmlinux
$MOD_LIVEPATCH2: allocate_loglevel_state: space to store console_loglevel already allocated
livepatch: '$MOD_LIVEPATCH2': starting patching transition
livepatch: '$MOD_LIVEPATCH2': completing patching transition
$MOD_LIVEPATCH2: post_patch_callback: vmlinux
$MOD_LIVEPATCH2: fix_console_loglevel: taking over the console_loglevel change
livepatch: '$MOD_LIVEPATCH2': patching complete
% rmmod $MOD_LIVEPATCH
% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH2/enabled
livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition
$MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux
$MOD_LIVEPATCH2: restore_console_loglevel: restoring console_loglevel
livepatch: '$MOD_LIVEPATCH2': starting unpatching transition
livepatch: '$MOD_LIVEPATCH2': completing unpatching transition
$MOD_LIVEPATCH2: post_unpatch_callback: vmlinux
$MOD_LIVEPATCH2: free_loglevel_state: freeing space for the stored console_loglevel
livepatch: '$MOD_LIVEPATCH2': unpatching complete
% rmmod $MOD_LIVEPATCH2"
selftests/livepatch: Don't clear dmesg when running tests Inspired by commit f131d9edc29d ("selftests/lkdtm: Don't clear dmesg when running tests"), keep a reference dmesg copy when beginning each test. This way check_result() can compare against the initial copy rather than relying upon an empty log. Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com> Reviewed-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Reviewed-by: Yannick Cote <ycote@redhat.com> Reviewed-by: Petr Mladek <pmladek@suse.com> Acked-by: Miroslav Benes <mbenes@suse.cz> Signed-off-by: Petr Mladek <pmladek@suse.com> Link: https://lore.kernel.org/r/20200618181040.21132-2-joe.lawrence@redhat.com
2020-06-18 14:10:38 -04:00
# Take over system state change by a cumulative patch
livepatch: Selftests of the API for tracking system state changes Four selftests for the new API. Link: http://lkml.kernel.org/r/20191030154313.13263-6-pmladek@suse.com To: Jiri Kosina <jikos@kernel.org> Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Cc: Nicolai Stange <nstange@suse.de> Cc: live-patching@vger.kernel.org Cc: linux-kernel@vger.kernel.org Acked-by: Miroslav Benes <mbenes@suse.cz> Acked-by: Joe Lawrence <joe.lawrence@redhat.com> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-30 16:43:13 +01:00
selftests/livepatch: Don't clear dmesg when running tests Inspired by commit f131d9edc29d ("selftests/lkdtm: Don't clear dmesg when running tests"), keep a reference dmesg copy when beginning each test. This way check_result() can compare against the initial copy rather than relying upon an empty log. Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com> Reviewed-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Reviewed-by: Yannick Cote <ycote@redhat.com> Reviewed-by: Petr Mladek <pmladek@suse.com> Acked-by: Miroslav Benes <mbenes@suse.cz> Signed-off-by: Petr Mladek <pmladek@suse.com> Link: https://lore.kernel.org/r/20200618181040.21132-2-joe.lawrence@redhat.com
2020-06-18 14:10:38 -04:00
start_test "compatible cumulative livepatches"
livepatch: Selftests of the API for tracking system state changes Four selftests for the new API. Link: http://lkml.kernel.org/r/20191030154313.13263-6-pmladek@suse.com To: Jiri Kosina <jikos@kernel.org> Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Cc: Nicolai Stange <nstange@suse.de> Cc: live-patching@vger.kernel.org Cc: linux-kernel@vger.kernel.org Acked-by: Miroslav Benes <mbenes@suse.cz> Acked-by: Joe Lawrence <joe.lawrence@redhat.com> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-30 16:43:13 +01:00
load_lp $MOD_LIVEPATCH2
load_lp $MOD_LIVEPATCH3
unload_lp $MOD_LIVEPATCH2
load_lp $MOD_LIVEPATCH2
disable_lp $MOD_LIVEPATCH2
unload_lp $MOD_LIVEPATCH2
unload_lp $MOD_LIVEPATCH3
check_result "% modprobe $MOD_LIVEPATCH2
livepatch: enabling patch '$MOD_LIVEPATCH2'
livepatch: '$MOD_LIVEPATCH2': initializing patching transition
$MOD_LIVEPATCH2: pre_patch_callback: vmlinux
$MOD_LIVEPATCH2: allocate_loglevel_state: allocating space to store console_loglevel
livepatch: '$MOD_LIVEPATCH2': starting patching transition
livepatch: '$MOD_LIVEPATCH2': completing patching transition
$MOD_LIVEPATCH2: post_patch_callback: vmlinux
$MOD_LIVEPATCH2: fix_console_loglevel: fixing console_loglevel
livepatch: '$MOD_LIVEPATCH2': patching complete
% modprobe $MOD_LIVEPATCH3
livepatch: enabling patch '$MOD_LIVEPATCH3'
livepatch: '$MOD_LIVEPATCH3': initializing patching transition
$MOD_LIVEPATCH3: pre_patch_callback: vmlinux
$MOD_LIVEPATCH3: allocate_loglevel_state: space to store console_loglevel already allocated
livepatch: '$MOD_LIVEPATCH3': starting patching transition
livepatch: '$MOD_LIVEPATCH3': completing patching transition
$MOD_LIVEPATCH3: post_patch_callback: vmlinux
$MOD_LIVEPATCH3: fix_console_loglevel: taking over the console_loglevel change
livepatch: '$MOD_LIVEPATCH3': patching complete
% rmmod $MOD_LIVEPATCH2
% modprobe $MOD_LIVEPATCH2
livepatch: enabling patch '$MOD_LIVEPATCH2'
livepatch: '$MOD_LIVEPATCH2': initializing patching transition
$MOD_LIVEPATCH2: pre_patch_callback: vmlinux
$MOD_LIVEPATCH2: allocate_loglevel_state: space to store console_loglevel already allocated
livepatch: '$MOD_LIVEPATCH2': starting patching transition
livepatch: '$MOD_LIVEPATCH2': completing patching transition
$MOD_LIVEPATCH2: post_patch_callback: vmlinux
$MOD_LIVEPATCH2: fix_console_loglevel: taking over the console_loglevel change
livepatch: '$MOD_LIVEPATCH2': patching complete
% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH2/enabled
livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition
$MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux
$MOD_LIVEPATCH2: restore_console_loglevel: restoring console_loglevel
livepatch: '$MOD_LIVEPATCH2': starting unpatching transition
livepatch: '$MOD_LIVEPATCH2': completing unpatching transition
$MOD_LIVEPATCH2: post_unpatch_callback: vmlinux
$MOD_LIVEPATCH2: free_loglevel_state: freeing space for the stored console_loglevel
livepatch: '$MOD_LIVEPATCH2': unpatching complete
% rmmod $MOD_LIVEPATCH2
% rmmod $MOD_LIVEPATCH3"
selftests/livepatch: Don't clear dmesg when running tests Inspired by commit f131d9edc29d ("selftests/lkdtm: Don't clear dmesg when running tests"), keep a reference dmesg copy when beginning each test. This way check_result() can compare against the initial copy rather than relying upon an empty log. Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com> Reviewed-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Reviewed-by: Yannick Cote <ycote@redhat.com> Reviewed-by: Petr Mladek <pmladek@suse.com> Acked-by: Miroslav Benes <mbenes@suse.cz> Signed-off-by: Petr Mladek <pmladek@suse.com> Link: https://lore.kernel.org/r/20200618181040.21132-2-joe.lawrence@redhat.com
2020-06-18 14:10:38 -04:00
# Failure caused by incompatible cumulative livepatches
livepatch: Selftests of the API for tracking system state changes Four selftests for the new API. Link: http://lkml.kernel.org/r/20191030154313.13263-6-pmladek@suse.com To: Jiri Kosina <jikos@kernel.org> Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Cc: Nicolai Stange <nstange@suse.de> Cc: live-patching@vger.kernel.org Cc: linux-kernel@vger.kernel.org Acked-by: Miroslav Benes <mbenes@suse.cz> Acked-by: Joe Lawrence <joe.lawrence@redhat.com> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-30 16:43:13 +01:00
selftests/livepatch: Don't clear dmesg when running tests Inspired by commit f131d9edc29d ("selftests/lkdtm: Don't clear dmesg when running tests"), keep a reference dmesg copy when beginning each test. This way check_result() can compare against the initial copy rather than relying upon an empty log. Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com> Reviewed-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Reviewed-by: Yannick Cote <ycote@redhat.com> Reviewed-by: Petr Mladek <pmladek@suse.com> Acked-by: Miroslav Benes <mbenes@suse.cz> Signed-off-by: Petr Mladek <pmladek@suse.com> Link: https://lore.kernel.org/r/20200618181040.21132-2-joe.lawrence@redhat.com
2020-06-18 14:10:38 -04:00
start_test "incompatible cumulative livepatches"
livepatch: Selftests of the API for tracking system state changes Four selftests for the new API. Link: http://lkml.kernel.org/r/20191030154313.13263-6-pmladek@suse.com To: Jiri Kosina <jikos@kernel.org> Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Cc: Nicolai Stange <nstange@suse.de> Cc: live-patching@vger.kernel.org Cc: linux-kernel@vger.kernel.org Acked-by: Miroslav Benes <mbenes@suse.cz> Acked-by: Joe Lawrence <joe.lawrence@redhat.com> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-10-30 16:43:13 +01:00
load_lp $MOD_LIVEPATCH2
load_failing_mod $MOD_LIVEPATCH
disable_lp $MOD_LIVEPATCH2
unload_lp $MOD_LIVEPATCH2
check_result "% modprobe $MOD_LIVEPATCH2
livepatch: enabling patch '$MOD_LIVEPATCH2'
livepatch: '$MOD_LIVEPATCH2': initializing patching transition
$MOD_LIVEPATCH2: pre_patch_callback: vmlinux
$MOD_LIVEPATCH2: allocate_loglevel_state: allocating space to store console_loglevel
livepatch: '$MOD_LIVEPATCH2': starting patching transition
livepatch: '$MOD_LIVEPATCH2': completing patching transition
$MOD_LIVEPATCH2: post_patch_callback: vmlinux
$MOD_LIVEPATCH2: fix_console_loglevel: fixing console_loglevel
livepatch: '$MOD_LIVEPATCH2': patching complete
% modprobe $MOD_LIVEPATCH
livepatch: Livepatch patch ($MOD_LIVEPATCH) is not compatible with the already installed livepatches.
modprobe: ERROR: could not insert '$MOD_LIVEPATCH': Invalid argument
% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH2/enabled
livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition
$MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux
$MOD_LIVEPATCH2: restore_console_loglevel: restoring console_loglevel
livepatch: '$MOD_LIVEPATCH2': starting unpatching transition
livepatch: '$MOD_LIVEPATCH2': completing unpatching transition
$MOD_LIVEPATCH2: post_unpatch_callback: vmlinux
$MOD_LIVEPATCH2: free_loglevel_state: freeing space for the stored console_loglevel
livepatch: '$MOD_LIVEPATCH2': unpatching complete
% rmmod $MOD_LIVEPATCH2"
exit 0
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