// SPDX-License-Identifier: GPL-2.0-only
/*
* Testsuite for eBPF verifier
*
* Copyright (c) 2014 PLUMgrid, http://plumgrid.com
* Copyright (c) 2017 Facebook
* Copyright (c) 2018 Covalent IO, Inc. http://covalent.io
*/
#include <endian.h>
#include <asm/types.h>
#include <linux/types.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <stddef.h>
#include <stdbool.h>
#include <sched.h>
#include <limits.h>
#include <assert.h>
#include <sys/capability.h>
#include <linux/unistd.h>
#include <linux/filter.h>
#include <linux/bpf_perf_event.h>
#include <linux/bpf.h>
#include <linux/if_ether.h>
#include <linux/btf.h>
#include <bpf/bpf.h>
#include <bpf/libbpf.h>
#ifdef HAVE_GENHDR
# include "autoconf.h"
#else
# if defined(__i386) || defined(__x86_64) || defined(__s390x__) || defined(__aarch64__)
# define CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS 1
# endif
#endif
#include "bpf_rlimit.h"
#include "bpf_rand.h"
#include "bpf_util.h"
#include "test_btf.h"
#include "../../../include/linux/filter.h"
#define MAX_INSNS BPF_MAXINSNS
#define MAX_TEST_INSNS 1000000
#define MAX_FIXUPS 8
#define MAX_NR_MAPS 20
#define MAX_TEST_RUNS 8
#define POINTER_VALUE 0xcafe4all
#define TEST_DATA_LEN 64
#define F_NEEDS_EFFICIENT_UNALIGNED_ACCESS (1 << 0)
#define F_LOAD_WITH_STRICT_ALIGNMENT (1 << 1)
#define UNPRIV_SYSCTL "kernel/unprivileged_bpf_disabled"
static bool unpriv_disabled = false;
static int skips;
static bool verbose = false;
struct bpf_test {
const char *descr;
struct bpf_insn insns[MAX_INSNS];
struct bpf_insn *fill_insns;
int fixup_map_hash_8b[MAX_FIXUPS];
int fixup_map_hash_48b[MAX_FIXUPS];
int fixup_map_hash_16b[MAX_FIXUPS];
int fixup_map_array_48b[MAX_FIXUPS];
int fixup_map_sockmap[MAX_FIXUPS];
int fixup_map_sockhash[MAX_FIXUPS];
int fixup_map_xskmap[MAX_FIXUPS];
int fixup_map_stacktrace[MAX_FIXUPS];
int fixup_prog1[MAX_FIXUPS];
int fixup_prog2[MAX_FIXUPS];
int fixup_map_in_map[MAX_FIXUPS];
int fixup_cgroup_storage[MAX_FIXUPS];
int fixup_percpu_cgroup_storage[MAX_FIXUPS];
int fixup_map_spin_lock[MAX_FIXUPS];
int fixup_map_array_ro[MAX_FIXUPS];
int fixup_map_array_wo[MAX_FIXUPS];
int fixup_map_array_small[MAX_FIXUPS];
int fixup_sk_storage_map[MAX_FIXUPS];
int fixup_map_event_output[MAX_FIXUPS];
int fixup_map_reuseport_array[MAX_FIXUPS];
const char *errstr;
const char *errstr_unpriv;
uint32_t insn_processed;
int prog_len;
enum {
UNDEF,
ACCEPT,
REJECT,
VERBOSE_ACCEPT,
} result, result_unpriv;
enum bpf_prog_type prog_type;
uint8_t flags;
void (*fill_helper)(struct bpf_test *self);
uint8_t runs;
#define bpf_testdata_struct_t \
struct { \
uint32_t retval, retval_unpriv; \
union { \
__u8 data[TEST_DATA_LEN]; \
__u64 data64[TEST_DATA_LEN / 8]; \
}; \
}
union {
bpf_testdata_struct_t;
bpf_testdata_struct_t retvals[MAX_TEST_RUNS];