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// SPDX-License-Identifier: GPL-2.0
/*
* Linux Security Module infrastructure tests
* Tests for the lsm_set_self_attr system call
*
* Copyright © 2022 Casey Schaufler <casey@schaufler-ca.com>
*/
#define _GNU_SOURCE
#include <linux/lsm.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include "../kselftest_harness.h"
#include "common.h"
TEST(ctx_null_lsm_set_self_attr)
{
ASSERT_EQ(-1, lsm_set_self_attr(LSM_ATTR_CURRENT, NULL,
sizeof(struct lsm_ctx), 0));
}
TEST(size_too_small_lsm_set_self_attr)
{
const long page_size = sysconf(_SC_PAGESIZE);
struct lsm_ctx *ctx = calloc(page_size, 1);
__u32 size = page_size;
ASSERT_NE(NULL, ctx);
if (attr_lsm_count()) {
ASSERT_LE(1, lsm_get_self_attr(LSM_ATTR_CURRENT, ctx, &size,
0));
}
ASSERT_EQ(-1, lsm_set_self_attr(LSM_ATTR_CURRENT, ctx, 1, 0));
free(ctx);
}
TEST(flags_zero_lsm_set_self_attr)
{
const long page_size = sysconf(_SC_PAGESIZE);
struct lsm_ctx *ctx = calloc(page_size, 1);
__u32 size = page_size;
ASSERT_NE(NULL, ctx);
if (attr_lsm_count()) {
ASSERT_LE(1, lsm_get_self_attr(LSM_ATTR_CURRENT, ctx, &size,
0));
}
ASSERT_EQ(-1, lsm_set_self_attr(LSM_ATTR_CURRENT, ctx, size, 1));
free(ctx);
}
TEST(flags_overset_lsm_set_self_attr)
{
const long page_size = sysconf(_SC_PAGESIZE);
char *ctx = calloc(page_size, 1);
__u32 size = page_size;
struct lsm_ctx *tctx = (struct lsm_ctx *)ctx;
ASSERT_NE(NULL, ctx);
if (attr_lsm_count()) {
ASSERT_LE(1, lsm_get_self_attr(LSM_ATTR_CURRENT, tctx, &size,
0));
}
ASSERT_EQ(-1, lsm_set_self_attr(LSM_ATTR_CURRENT | LSM_ATTR_PREV, tctx,
size, 0));
free(ctx);
}
TEST_HARNESS_MAIN
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