s3: Test whether get_share_mode_lock cleans up stale processes

Signed-off-by: Jeremy Allison <jra@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>

1 files changed, 175 insertions, 0 deletions

diff --git a/source3/torture/test_cleanup.c b/source3/torture/test_cleanup.c
index 39f579a9cd..d9dce402de 100644
--- a/source3/torture/test_cleanup.c
+++ b/source3/torture/test_cleanup.c
@@ -18,11 +18,14 @@
 */
 
 #include "includes.h"
+#include "locking/proto.h"
 #include "torture/proto.h"
 #include "system/filesys.h"
+#include "system/select.h"
 #include "libsmb/libsmb.h"
 #include "libcli/smb/smbXcli_base.h"
 #include "libcli/security/security.h"
+#include "librpc/gen_ndr/open_files.h"
 
 bool run_cleanup1(int dummy)
 {
@@ -154,3 +157,175 @@ bool run_cleanup2(int dummy)
 	}
 	return true;
 }
+
+static bool create_stale_share_mode_entry(const char *fname,
+					  struct file_id *p_id)
+{
+	struct cli_state *cli;
+	uint16_t fnum;
+	NTSTATUS status;
+	SMB_STRUCT_STAT sbuf;
+	struct file_id id;
+
+	if (!torture_open_connection(&cli, 0)) {
+		return false;
+	}
+
+	status = torture_setup_unix_extensions(cli);
+	if (!NT_STATUS_IS_OK(status)) {
+		printf("torture_setup_unix_extensions failed: %s\n",
+		       nt_errstr(status));
+		return false;
+	}
+	status = cli_openx(cli, fname, O_RDWR|O_CREAT, DENY_ALL, &fnum);
+	if (!NT_STATUS_IS_OK(status)) {
+		printf("open of %s failed (%s)\n", fname, nt_errstr(status));
+		return false;
+	}
+	status = cli_posix_stat(cli, fname, &sbuf);
+	if (!NT_STATUS_IS_OK(status)) {
+		printf("cli_posix_stat failed: %s\n", nt_errstr(status));
+		return false;
+	}
+	status = smbXcli_conn_samba_suicide(cli->conn, 1);
+	if (!NT_STATUS_IS_OK(status)) {
+		printf("smbXcli_conn_samba_suicide failed: %s\n",
+		       nt_errstr(status));
+		return false;
+	}
+
+	id.devid = sbuf.st_ex_rdev;
+	id.inode = sbuf.st_ex_ino;
+	id.extid = 0;
+
+	poll(NULL, 0, 1000);
+
+	*p_id = id;
+	return true;
+}
+
+static bool corrupt_dummy(struct share_mode_data *d)
+{
+	return true;
+}
+
+static bool invalidate_sharemode(struct share_mode_data *d)
+{
+	d->share_modes[0].op_type =
+		OPLOCK_EXCLUSIVE|OPLOCK_BATCH|OPLOCK_LEVEL_II;
+	d->modified = true;
+	return true;
+}
+
+static bool duplicate_entry(struct share_mode_data *d, int i)
+{
+	struct share_mode_entry *tmp;
+
+	if (i >= d->num_share_modes) {
+		return false;
+	}
+
+	tmp = talloc_realloc(d, d->share_modes, struct share_mode_entry,
+			     d->num_share_modes + 1);
+	if (tmp == NULL) {
+		return false;
+	}
+	d->share_modes = tmp;
+	d->num_share_modes += 1;
+	d->share_modes[d->num_share_modes-1] = d->share_modes[i];
+	d->modified = true;
+	return true;
+}
+
+static bool create_duplicate_batch(struct share_mode_data *d)
+{
+	if (d->num_share_modes != 1) {
+		return false;
+	}
+	d->share_modes[0].op_type = OPLOCK_BATCH;
+	if (!duplicate_entry(d, 0)) {
+		return false;
+	}
+	return true;
+}
+
+struct corruption_fns {
+	bool (*fn)(struct share_mode_data *d);
+	const char *descr;
+};
+
+bool run_cleanup3(int dummy)
+{
+	struct cli_state *cli;
+	const char *fname = "cleanup3";
+	uint16_t fnum;
+	NTSTATUS status;
+	struct share_mode_lock *lck;
+	struct file_id id;
+	size_t i;
+
+	struct corruption_fns fns[] = {
+		{ corrupt_dummy, "no corruption" },
+		{ invalidate_sharemode, "invalidate_sharemode" },
+		{ create_duplicate_batch, "create_duplicate_batch" },
+	};
+
+	printf("CLEANUP3: Checking that a share mode is cleaned up on "
+	       "conflict\n");
+
+	for (i=0; i<ARRAY_SIZE(fns); i++) {
+
+		printf("testing %s\n", fns[i].descr);
+
+		if (!create_stale_share_mode_entry(fname, &id)) {
+			printf("create_stale_entry failed\n");
+			return false;
+		}
+
+		printf("%d %d %d\n", (int)id.devid, (int)id.inode,
+		       (int)id.extid);
+
+		if (!locking_init()) {
+			printf("locking_init failed\n");
+			return false;
+		}
+		lck = get_existing_share_mode_lock(talloc_tos(), id);
+		if (lck == NULL) {
+			printf("get_existing_share_mode_lock failed\n");
+			return false;
+		}
+		if (lck->data->num_share_modes != 1) {
+			printf("get_existing_share_mode_lock did clean up\n");
+			return false;
+		}
+
+		fns[i].fn(lck->data);
+
+		TALLOC_FREE(lck);
+
+		if (!torture_open_connection(&cli, 0)) {
+			return false;
+		}
+		status = cli_openx(cli, fname, O_RDWR|O_CREAT, DENY_ALL,
+				   &fnum);
+		if (!NT_STATUS_IS_OK(status)) {
+			printf("open of %s failed (%s)\n", fname,
+			       nt_errstr(status));
+			return false;
+		}
+		lck = get_existing_share_mode_lock(talloc_tos(), id);
+		if (lck == NULL) {
+			printf("get_existing_share_mode_lock failed\n");
+			return false;
+		}
+		if (lck->data->num_share_modes != 1) {
+			printf("conflicting open did not clean up\n");
+			return false;
+		}
+		TALLOC_FREE(lck);
+
+		torture_close_connection(cli);
+	}
+
+	return true;
+}