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tests: Support idm failure injection

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When the drive failure occurs, the IDM lock manager and lvmlockd should
handle this case properly.  E.g. when the IDM lock manager detects the
lease renewal failure caused by I/O errors, it should invoke the kill
path which is predefined by lvmlockd, so that the kill path program
(like lvmlockctl) can send requests to lvmlockd to stop and drop lock
for the relevant VG/LVs.

To verify the failure handling flow, this patch introduces an idm
failure injection program, it can input the "percentage" for drive
failures so that can emulate different failure cases.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
This commit is contained in:
Leo Yan 2021-06-03 17:59:16 +08:00 committed by David Teigland
parent f83e11ff43
commit 8c7b2df41f
2 changed files with 60 additions and 0 deletions
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5
test/Makefile.in
View File

@ -171,6 +171,7 @@ endif
ifeq ("@BUILD_LVMLOCKD@", "yes")
check_lvmlockd_idm: .tests-stamp
$(INSTALL_PROGRAM) lib/idm_inject_failure $(EXECDIR)
VERBOSE=$(VERBOSE) ./lib/runner \
--testdir . --outdir $(LVM_TEST_RESULTS) \
--flavours udev-lvmlockd-idm --only shell/aa-lvmlockd-idm-prepare.sh,$(T),shell/zz-lvmlockd-idm-remove.sh --skip $(S)
@ -269,6 +270,10 @@ lib/securetest: lib/dmsecuretest.o .lib-dir-stamp
@echo " [CC] $@"
$(Q) $(CC) -g $(CFLAGS) $(LDFLAGS) $(EXTRA_EXEC_LDFLAGS) $(ELDFLAGS) -o $@ $< -L$(interfacebuilddir) -ldevmapper $(LIBS)
lib/idm_inject_failure: lib/idm_inject_failure.o .lib-dir-stamp
@echo " [CC] $@"
$(Q) $(CC) -g $(CFLAGS) $(LDFLAGS) $(EXTRA_EXEC_LDFLAGS) $(ELDFLAGS) -o $@ $< $(INTERNAL_LIBS) $(LIBS) -lseagate_ilm
lib/runner.o: $(wildcard $(srcdir)/lib/*.h)
CFLAGS_runner.o += $(EXTRA_EXEC_CFLAGS)

55
test/lib/idm_inject_failure.c Normal file
View File

@ -0,0 +1,55 @@
/*
* Copyright (C) 2020-2021 Seagate Ltd.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License v.2.1.
*/
#include <errno.h>
#include <limits.h>
#include <signal.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/inotify.h>
#include <uuid/uuid.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <ilm.h>
int main(int argc, char *argv[])
{
int pecent = atoi(argv[1]);
int ret, s;
ret = ilm_connect(&s);
if (ret == 0) {
printf("ilm_connect: SUCCESS\n");
} else {
printf("ilm_connect: FAIL\n");
exit(-1);
}
ret = ilm_inject_fault(s, pecent);
if (ret == 0) {
printf("ilm_inject_fault (100): SUCCESS\n");
} else {
printf("ilm_inject_fault (100): FAIL\n");
exit(-1);
}
ret = ilm_disconnect(s);
if (ret == 0) {
printf("ilm_disconnect: SUCCESS\n");
} else {
printf("ilm_disconnect: FAIL\n");
exit(-1);
}
return 0;
}