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[src/trunk]: src/tests/fs/lfs Add skipped test for in-kernel roll-forward agent
details: https://anonhg.NetBSD.org/src/rev/c066ea7d573f
branches: trunk
changeset: 942746:c066ea7d573f
user: perseant <perseant%NetBSD.org@localhost>
date: Tue Aug 18 03:02:50 2020 +0000
description:
Add skipped test for in-kernel roll-forward agent
diffstat:
distrib/sets/lists/debug/mi | 3 +-
distrib/sets/lists/tests/mi | 3 +-
tests/fs/lfs/Makefile | 4 +-
tests/fs/lfs/t_rfw.c | 272 ++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 278 insertions(+), 4 deletions(-)
diffs (truncated from 328 to 300 lines):
diff -r 6ac0b83af13a -r c066ea7d573f distrib/sets/lists/debug/mi
--- a/distrib/sets/lists/debug/mi Tue Aug 18 02:53:25 2020 +0000
+++ b/distrib/sets/lists/debug/mi Tue Aug 18 03:02:50 2020 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.327 2020/08/14 00:53:16 riastradh Exp $
+# $NetBSD: mi,v 1.328 2020/08/18 03:02:50 perseant Exp $
./etc/mtree/set.debug comp-sys-root
./usr/lib comp-sys-usr compatdir
./usr/lib/i18n/libBIG5_g.a comp-c-debuglib debuglib,compatfile
@@ -1666,6 +1666,7 @@
./usr/libdata/debug/usr/tests/fs/hfs/t_pathconvert.debug tests-fs-debug debug,atf,rump
./usr/libdata/debug/usr/tests/fs/kernfs/t_basic.debug tests-fs-debug debug,atf,rump
./usr/libdata/debug/usr/tests/fs/lfs/t_pr.debug tests-fs-debug debug,atf,rump
+./usr/libdata/debug/usr/tests/fs/lfs/t_rfw.debug tests-fs-debug debug,atf,rump
./usr/libdata/debug/usr/tests/fs/msdosfs/t_snapshot.debug tests-fs-debug debug,atf,rump
./usr/libdata/debug/usr/tests/fs/nfs/nfsservice/rumpnfsd.debug tests-fs-debug debug,atf,rump
./usr/libdata/debug/usr/tests/fs/nfs/t_mountd.debug tests-fs-debug debug,atf,rump
diff -r 6ac0b83af13a -r c066ea7d573f distrib/sets/lists/tests/mi
--- a/distrib/sets/lists/tests/mi Tue Aug 18 02:53:25 2020 +0000
+++ b/distrib/sets/lists/tests/mi Tue Aug 18 03:02:50 2020 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.892 2020/08/16 20:43:01 rillig Exp $
+# $NetBSD: mi,v 1.893 2020/08/18 03:02:50 perseant Exp $
#
# Note: don't delete entries from here - mark them as "obsolete" instead.
#
@@ -1501,6 +1501,7 @@
./usr/tests/fs/lfs/Atffile tests-fs-tests atf,rump
./usr/tests/fs/lfs/Kyuafile tests-fs-tests atf,rump,kyua
./usr/tests/fs/lfs/t_pr tests-fs-tests atf,rump
+./usr/tests/fs/lfs/t_rfw tests-fs-tests atf,rump
./usr/tests/fs/msdosfs tests-fs-tests compattestfile,atf
./usr/tests/fs/msdosfs/Atffile tests-fs-tests atf,rump
./usr/tests/fs/msdosfs/Kyuafile tests-fs-tests atf,rump,kyua
diff -r 6ac0b83af13a -r c066ea7d573f tests/fs/lfs/Makefile
--- a/tests/fs/lfs/Makefile Tue Aug 18 02:53:25 2020 +0000
+++ b/tests/fs/lfs/Makefile Tue Aug 18 03:02:50 2020 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.2 2020/03/01 18:08:13 christos Exp $
+# $NetBSD: Makefile,v 1.3 2020/08/18 03:02:50 perseant Exp $
#
.include <bsd.own.mk>
@@ -6,7 +6,7 @@
TESTSDIR= ${TESTSBASE}/fs/lfs
WARNS= 4
-TESTS_C= t_pr
+TESTS_C= t_pr t_rfw
LDADD+=-lrumpfs_lfs -lrumpfs_ffs # fs drivers
LDADD+=-lrumpdev_disk -lrumpdev # disk device
diff -r 6ac0b83af13a -r c066ea7d573f tests/fs/lfs/t_rfw.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/fs/lfs/t_rfw.c Tue Aug 18 03:02:50 2020 +0000
@@ -0,0 +1,272 @@
+/* $NetBSD: t_rfw.c,v 1.1 2020/08/18 03:02:50 perseant Exp $ */
+
+#include <sys/types.h>
+#include <sys/mount.h>
+#include <sys/sysctl.h>
+#include <sys/wait.h>
+
+#include <atf-c.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+
+#include <rump/rump.h>
+#include <rump/rump_syscalls.h>
+
+#include <ufs/ufs/ufsmount.h>
+#include <ufs/lfs/lfs.h>
+#include <ufs/lfs/lfs_extern.h>
+
+#include "h_macros.h"
+
+/* Debugging conditions */
+/* #define FORCE_SUCCESS */ /* Don't actually revert, everything worked */
+/* #define FORCE_SYSCTL */ /* Don't check - necessary for FORCE_SUCCESS */
+
+/* Write a well-known byte pattern into a file, appending if it exists */
+int write_file(const char *, int);
+
+/* Check the byte pattern and size of the file */
+int check_file(const char *, int);
+
+ATF_TC(rfw);
+ATF_TC_HEAD(rfw, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "LFS roll-forward creates an inconsistent filesystem");
+ atf_tc_set_md_var(tc, "timeout", "20");
+}
+
+#define IMGNAME "disk.img"
+#define FAKEBLK "/dev/blk"
+#define LOGFILE "newfs.log"
+#define SBLOCK0_COPY "sb0.dd"
+#define SBLOCK1_COPY "sb1.dd"
+#define MAXLINE 132
+#define CHUNKSIZE 300
+ATF_TC_BODY(rfw, tc)
+{
+ struct ufs_args args;
+ FILE *pipe;
+#if (!defined FORCE_SUCCESS && !defined FORCE_SYSCTL)
+ int o_sysctl_rfw;
+ int n_sysctl_rfw;
+ int mib[3];
+ size_t len;
+#endif
+ char buf[MAXLINE];
+ long long sb0addr = -1, sb1addr = -1;
+
+ /*
+ * Initialize.
+ */
+#if (!defined FORCE_SUCCESS && !defined FORCE_SYSCTL)
+ /* Set sysctl to allow roll-forward */
+ fprintf(stderr, "* Set sysctl\n");
+ mib[0] = CTL_VFS;
+ mib[1] = 5; /* LFS */
+ mib[2] = LFS_DO_RFW;
+ len = sizeof(o_sysctl_rfw);
+ if (sysctl(mib, 3, &o_sysctl_rfw, &len,
+ &n_sysctl_rfw, sizeof(n_sysctl_rfw)) < 0)
+ atf_tc_skip("roll-forward not enabled in kernel");
+#endif /* !FORCE_SUCCESS && !FORCE_SYSCTL */
+
+ /* Create filesystem */
+ fprintf(stderr, "* Create file system\n");
+ if (system("newfs_lfs -D -F -s 10000 ./" IMGNAME " > " LOGFILE) == -1)
+ atf_tc_fail_errno("newfs failed");
+ pipe = fopen(LOGFILE, "r");
+ if (pipe == NULL)
+ atf_tc_fail_errno("newfs failed to execute");
+ while (fgets(buf, MAXLINE, pipe) != NULL) {
+ if (sscanf(buf, "%lld,%lld", &sb0addr, &sb1addr) == 2)
+ break;
+ }
+ while (fgets(buf, MAXLINE, pipe) != NULL)
+ ;
+ fclose(pipe);
+ if (sb0addr < 0 || sb1addr < 0)
+ atf_tc_fail("superblock not found");
+ fprintf(stderr, "* Superblocks at %lld and %lld\n",
+ sb0addr, sb1addr);
+
+ /* Set up rump */
+ rump_init();
+ if (rump_sys_mkdir("/mp", 0777) == -1)
+ atf_tc_fail_errno("cannot create mountpoint");
+ rump_pub_etfs_register(FAKEBLK, IMGNAME, RUMP_ETFS_BLK);
+
+ /*
+ * Create initial filesystem state, from which
+ * we will attempt to roll forward.
+ */
+
+ /* Mount filesystem */
+ fprintf(stderr, "* Mount fs [1]\n");
+ memset(&args, 0, sizeof(args));
+ args.fspec = __UNCONST(FAKEBLK);
+ if (rump_sys_mount(MOUNT_LFS, "/mp", 0, &args, sizeof(args)) == -1)
+ atf_tc_fail_errno("rump_sys_mount failed");
+
+ /* Payload */
+ fprintf(stderr, "* Initial payload\n");
+ write_file("/mp/to_be_deleted", CHUNKSIZE);
+ write_file("/mp/to_be_appended", CHUNKSIZE);
+
+ /* Unmount */
+ rump_sys_unmount("/mp", 0);
+
+ /* Make copies of superblocks */
+ sprintf(buf, "dd if=%s of=%s bs=512 iseek=%lld count=16 conv=sync",
+ IMGNAME, SBLOCK0_COPY, sb0addr);
+ system(buf);
+ sprintf(buf, "dd if=%s of=%s bs=512 iseek=%lld count=16 conv=sync",
+ IMGNAME, SBLOCK1_COPY, sb1addr);
+ system(buf);
+
+ /*
+ * Make changes which we will attempt to roll forward.
+ */
+
+ /* Reconfigure and mount filesystem again */
+ fprintf(stderr, "* Mount fs [2]\n");
+ if (rump_sys_mount(MOUNT_LFS, "/mp", 0, &args, sizeof(args)) == -1)
+ atf_tc_fail_errno("rump_sys_mount failed [2]");
+
+ /* Add new file */
+ write_file("/mp/newly_created", CHUNKSIZE);
+
+ /* Append to existing file */
+ write_file("/mp/to_be_appended", CHUNKSIZE);
+
+ /* Delete file */
+ rump_sys_unlink("/mp/to_be_deleted");
+
+ /* Done with payload, unmount fs */
+ rump_sys_unmount("/mp", 0);
+
+#ifndef FORCE_SUCCESS
+ /*
+ * Copy back old superblocks, reverting FS to old state
+ */
+ sprintf(buf, "dd of=%s if=%s bs=512 oseek=%lld count=16 conv=sync,notrunc",
+ IMGNAME, SBLOCK0_COPY, sb0addr);
+ system(buf);
+ sprintf(buf, "dd of=%s if=%s bs=512 oseek=%lld count=16 conv=sync,notrunc",
+ IMGNAME, SBLOCK1_COPY, sb1addr);
+ system(buf);
+
+ if (system("fsck_lfs -n -f " IMGNAME))
+ atf_tc_fail_errno("fsck found errors with old superblocks");
+#endif
+
+ /*
+ * Roll forward.
+ */
+
+ /* Mount filesystem; this will roll forward. */
+ fprintf(stderr, "* Mount fs [3]\n");
+ if (rump_sys_mount(MOUNT_LFS, "/mp", 0, &args, sizeof(args)) == -1)
+ atf_tc_fail_errno("rump_sys_mount failed [3]");
+
+ /* Unmount filesystem */
+ rump_sys_unmount("/mp", 0);
+
+ /*
+ * Use fsck_lfs to look for consistency errors
+ */
+
+ if (system("fsck_lfs -n -f " IMGNAME))
+ atf_tc_fail_errno("fsck found errors");
+
+ /*
+ * Check file system contents
+ */
+
+ /* Mount filesystem one last time */
+ fprintf(stderr, "* Mount fs [4]\n");
+ if (rump_sys_mount(MOUNT_LFS, "/mp", 0, &args, sizeof(args)) == -1)
+ atf_tc_fail_errno("rump_sys_mount failed [4]");
+
+ if (check_file("/mp/newly_created", CHUNKSIZE) != 0)
+ atf_tc_fail("Newly added file differs");
+
+ if (check_file("/mp/to_be_appended", 2 * CHUNKSIZE) != 0)
+ atf_tc_fail("Appended file differs");
+
+ if (rump_sys_access("/mp/to_be_deleted", F_OK) == 0)
+ atf_tc_fail("Removed file still present");
+
+ /* Umount filesystem, test completed */
+ rump_sys_unmount("/mp", 0);
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+ ATF_TP_ADD_TC(tp, rfw);
+ return atf_no_error();
+}
+
+/* Write some data into a file */
+int write_file(const char *filename, int add)
+{
+ int fd, size, i;
+ struct stat statbuf;
+ unsigned char b;
+ int flags = O_CREAT|O_WRONLY;
+
+ if (rump_sys_stat(filename, &statbuf) < 0)
+ size = 0;
+ else {
+ size = statbuf.st_size;
+ flags |= O_APPEND;
+ }
+
+ fd = rump_sys_open(filename, flags);
+
+ for (i = 0; i < add; i++) {
+ b = (size + i) & 0xff;
+ rump_sys_write(fd, &b, 1);
+ }
+ rump_sys_close(fd);
+
+ return 0;
+}
+
+/* Check file's existence, size and contents */
+int check_file(const char *filename, int size)
+{
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