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torture: add an interactive test that works out maximum name and path lenghts

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Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This commit is contained in:
Ralph Boehme 2022-11-29 18:30:35 +01:00 committed by Jeremy Allison
parent 3ece2cb807
commit 0fa7c3f70c
1 changed files with 129 additions and 1 deletions
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130
source4/torture/smb2/create.c
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@ -3952,6 +3952,134 @@ static bool test_smb2_bench_path_contention_shared(struct torture_context *tctx,
return ret;
}
/**
Find Maximum Path Length
*/
static bool generate_path(const size_t len,
char *buffer,
const size_t buf_len)
{
size_t i;
if (len >= buf_len) {
return false;
}
for (i = 0; i < len ; i++) {
buffer[i] = (char)(i % 10) + 48;
}
buffer[i] = '\0';
return true;
}
static bool test_path_length_test(struct torture_context *tctx,
struct smb2_tree *tree)
{
const size_t max_name = 2048;
char *name = talloc_array(tctx, char, max_name);
struct smb2_handle fh = {{0}};
size_t length = 128;
size_t max_file_name = 0;
size_t max_path_length = 0;
char *path_ok = NULL;
char *path_next = NULL;
char *topdir = NULL;
bool is_interactive = torture_setting_bool(tctx, "interactive", false);
NTSTATUS status;
bool ret = true;
if (!is_interactive) {
torture_result(tctx, TORTURE_SKIP,
"Interactive Test: Skipping... "
"(enable with --interactive)\n");
return ret;
}
torture_comment(tctx, "Testing filename and path lengths\n");
/* Find Longest File Name */
for (length = 128; length < max_name; length++) {
if (!generate_path(length, name, max_name)) {
torture_result(tctx, TORTURE_FAIL,
"Failed to generate path.");
return false;
}
status = torture_smb2_testfile(tree, name, &fh);
if (!NT_STATUS_IS_OK(status)) {
break;
}
smb2_util_close(tree, fh);
smb2_util_unlink(tree, name);
max_file_name = length;
}
torture_assert_int_not_equal_goto(tctx, length, max_name, ret, done,
"Name too big\n");
torture_comment(tctx, "Max file name length: %zu\n", max_file_name);
/* Remove one char that caused the failure above */
name[max_file_name] = '\0';
path_ok = talloc_strdup(tree, name);
torture_assert_not_null_goto(tctx, path_ok, ret, done,
"talloc_strdup failed\n");
topdir = talloc_strdup(tree, name);
torture_assert_not_null_goto(tctx, topdir, ret, done,
"talloc_strdup failed\n");
status = smb2_util_mkdir(tree, path_ok);
if (!NT_STATUS_IS_OK(status)) {
torture_comment(tctx, "mkdir [%s] failed: %s\n",
path_ok, nt_errstr(status));
torture_result(tctx, TORTURE_FAIL, "Initial mkdir failed");
return false;
}
while (true) {
path_next = talloc_asprintf(tctx, "%s\\%s", path_ok, name);
torture_assert_not_null_goto(tctx, path_next, ret, done,
"talloc_asprintf failed\n");
status = smb2_util_mkdir(tree, path_next);
if (!NT_STATUS_IS_OK(status)) {
break;
}
path_ok = path_next;
}
for (length = 1; length < max_name; length++) {
if (!generate_path(length, name, max_name)) {
torture_result(tctx, TORTURE_FAIL,
"Failed to generate path.");
return false;
}
path_next = talloc_asprintf(tctx, "%s\\%s", path_ok, name);
torture_assert_not_null_goto(tctx, path_next, ret, done,
"talloc_asprintf failed\n");
status = torture_smb2_testfile(tree, path_next, &fh);
if (!NT_STATUS_IS_OK(status)) {
break;
}
smb2_util_close(tree, fh);
path_ok = path_next;
}
max_path_length = talloc_array_length(path_ok);
torture_comment(tctx, "Max path name length: %zu\n", max_path_length);
done:
return ret;
}
/*
basic testing of SMB2 read
*/
@ -3974,7 +4102,7 @@ struct torture_suite *torture_smb2_create_init(TALLOC_CTX *ctx)
torture_suite_add_1smb2_test(suite, "dir-alloc-size", test_dir_alloc_size);
torture_suite_add_1smb2_test(suite, "dosattr_tmp_dir", test_dosattr_tmp_dir);
torture_suite_add_1smb2_test(suite, "quota-fake-file", test_smb2_open_quota_fake_file);
torture_suite_add_1smb2_test(suite, "path-length", test_path_length_test);
torture_suite_add_1smb2_test(suite, "bench-path-contention-shared", test_smb2_bench_path_contention_shared);
suite->description = talloc_strdup(suite, "SMB2-CREATE tests");