Import the NetBSD test suite from ^/vendor/NetBSD/tests/09.30.2014_20.45 ,

minus the vendor Makefiles

Provide directions for how to bootstrap the vendor sources in
FREEBSD-upgrade

MFC after 2 weeks
Discussed with: rpaulo
Sponsored by: EMC / Isilon Storage Division

1 files changed, 174 insertions, 0 deletions

diff --git a/contrib/netbsd-tests/fs/nullfs/t_basic.c b/contrib/netbsd-tests/fs/nullfs/t_basic.c
new file mode 100644
index 0000000..21dfccd
--- /dev/null
+++ b/contrib/netbsd-tests/fs/nullfs/t_basic.c
@@ -0,0 +1,174 @@
+/*	$NetBSD: t_basic.c,v 1.3 2010/06/09 08:37:16 pooka Exp $	*/
+
+#include <sys/types.h>
+#include <sys/mount.h>
+
+#include <atf-c.h>
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include <rump/rump.h>
+#include <rump/rump_syscalls.h>
+
+#include <miscfs/nullfs/null.h>
+#include <fs/tmpfs/tmpfs_args.h>
+
+#include "../../h_macros.h"
+
+ATF_TC(basic);
+ATF_TC_HEAD(basic, tc)
+{
+	atf_tc_set_md_var(tc, "descr", "basic nullfs functionality");
+}
+
+#define MSTR "magic bus"
+
+static void
+xput_tfile(const char *path, const char *mstr)
+{
+	int fd;
+
+	fd = rump_sys_open(path, O_CREAT | O_RDWR, 0777);
+	if (fd == -1)
+		atf_tc_fail_errno("create %s", path);
+	if (rump_sys_write(fd, MSTR, sizeof(MSTR)) != sizeof(MSTR))
+		atf_tc_fail_errno("write to testfile");
+	rump_sys_close(fd);
+}
+
+static int
+xread_tfile(const char *path, const char *mstr)
+{
+	char buf[128];
+	int fd;
+
+	fd = rump_sys_open(path, O_RDONLY);
+	if (fd == -1)
+		return errno;
+	if (rump_sys_read(fd, buf, sizeof(buf)) == -1)
+		atf_tc_fail_errno("read tfile");
+	rump_sys_close(fd);
+	if (strcmp(buf, MSTR) == 0)
+		return 0;
+	return EPROGMISMATCH;
+}
+
+static void
+mountnull(const char *what, const char *mp, int flags)
+{
+	struct null_args nargs;
+
+	memset(&nargs, 0, sizeof(nargs));
+	nargs.nulla_target = __UNCONST(what);
+	if (rump_sys_mount(MOUNT_NULL, mp, flags, &nargs, sizeof(nargs)) == -1)
+		atf_tc_fail_errno("could not mount nullfs");
+
+}
+
+ATF_TC_BODY(basic, tc)
+{
+	struct tmpfs_args targs;
+	struct stat sb;
+	int error;
+
+	rump_init();
+	if (rump_sys_mkdir("/td1", 0777) == -1)
+		atf_tc_fail_errno("mp1");
+	if (rump_sys_mkdir("/td2", 0777) == -1)
+		atf_tc_fail_errno("mp1");
+
+	/* use tmpfs because rumpfs doesn't support regular files */
+	memset(&targs, 0, sizeof(targs));
+	targs.ta_version = TMPFS_ARGS_VERSION;
+	targs.ta_root_mode = 0777;
+	if (rump_sys_mount(MOUNT_TMPFS, "/td1", 0, &targs, sizeof(targs)) == -1)
+		atf_tc_fail_errno("could not mount tmpfs td1");
+
+	mountnull("/td1", "/td2", 0);
+
+	/* test unnull -> null */
+	xput_tfile("/td1/tensti", "jeppe");
+	error = xread_tfile("/td2/tensti", "jeppe");
+	if (error != 0)
+		atf_tc_fail("null compare failed: %d (%s)",
+		    error, strerror(error));
+
+	/* test null -> unnull */
+	xput_tfile("/td2/kiekko", "keppi");
+	error = xread_tfile("/td1/kiekko", "keppi");
+	if (error != 0)
+		atf_tc_fail("unnull compare failed: %d (%s)",
+		    error, strerror(error));
+
+	/* test unnull -> null overwrite */
+	xput_tfile("/td1/tensti", "se oolannin sota");
+	error = xread_tfile("/td2/tensti", "se oolannin sota");
+	if (error != 0)
+		atf_tc_fail("unnull compare failed: %d (%s)",
+		    error, strerror(error));
+
+	/* test that /td2 is unaffected in "real life" */
+	if (rump_sys_unmount("/td2", 0) == -1)
+		atf_tc_fail_errno("cannot unmount nullfs");
+	if ((error = rump_sys_stat("/td2/tensti", &sb)) != -1
+	    || errno != ENOENT) {
+		atf_tc_fail("stat tensti should return ENOENT, got %d", error);
+	}
+	if ((error = rump_sys_stat("/td2/kiekko", &sb)) != -1
+	    || errno != ENOENT) {
+		atf_tc_fail("stat kiekko should return ENOENT, got %d", error);
+	}
+
+	/* done */
+}
+
+ATF_TC(twistymount);
+ATF_TC_HEAD(twistymount, tc)
+{
+
+	/* this is expected to fail until the PR is fixed */
+	atf_tc_set_md_var(tc, "descr", "\"recursive\" mounts deadlock"
+	    " (kern/43439)");
+}
+
+/*
+ * Mapping to identifiers in kern/43439:
+ *  /td		= /home/current/pkgsrc
+ *  /td/dist	= /home/current/pkgsrc/distiles
+ *  /mp		= /usr/pkgsrc
+ *  /mp/dist	= /usr/pkgsrc/distfiles -- "created" by first null mount
+ */
+
+ATF_TC_BODY(twistymount, tc)
+{
+	int mkd = 0;
+
+	rump_init();
+
+	if (rump_sys_mkdir("/td", 0777) == -1)
+		atf_tc_fail_errno("mkdir %d", mkd++);
+	if (rump_sys_mkdir("/td/dist", 0777) == -1)
+		atf_tc_fail_errno("mkdir %d", mkd++);
+	if (rump_sys_mkdir("/mp", 0777) == -1)
+		atf_tc_fail_errno("mkdir %d", mkd++);
+
+	/* MNT_RDONLY doesn't matter, but just for compat with the PR */
+	mountnull("/td", "/mp", MNT_RDONLY);
+	mountnull("/td/dist", "/mp/dist", 0);
+
+	/* if we didn't get a locking-against-meself panic, we passed */
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+	ATF_TP_ADD_TC(tp, basic);
+	ATF_TP_ADD_TC(tp, twistymount);
+
+	return atf_no_error();
+}