107 lines
2.3 KiB
C
107 lines
2.3 KiB
C
|
// SPDX-License-Identifier: GPL-2.0
|
||
|
|
// Copyright (c) 2019 Isovalent, Inc.
|
||
|
|
|
||
|
|
#include <linux/bpf.h>
|
||
|
|
#include <linux/pkt_cls.h>
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
#include <bpf/bpf_helpers.h>
|
||
|
|
|
||
|
|
struct {
|
||
|
|
__uint(type, BPF_MAP_TYPE_ARRAY);
|
||
|
|
__uint(max_entries, 11);
|
||
|
|
__type(key, __u32);
|
||
|
|
__type(value, __u64);
|
||
|
|
} result_number SEC(".maps");
|
||
|
|
|
||
|
|
struct {
|
||
|
|
__uint(type, BPF_MAP_TYPE_ARRAY);
|
||
|
|
__uint(max_entries, 5);
|
||
|
|
__type(key, __u32);
|
||
|
|
const char (*value)[32];
|
||
|
|
} result_string SEC(".maps");
|
||
|
|
|
||
|
|
struct foo {
|
||
|
|
__u8 a;
|
||
|
|
__u32 b;
|
||
|
|
__u64 c;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct {
|
||
|
|
__uint(type, BPF_MAP_TYPE_ARRAY);
|
||
|
|
__uint(max_entries, 5);
|
||
|
|
__type(key, __u32);
|
||
|
|
__type(value, struct foo);
|
||
|
|
} result_struct SEC(".maps");
|
||
|
|
|
||
|
|
/* Relocation tests for __u64s. */
|
||
|
|
static __u64 num0;
|
||
|
|
static __u64 num1 = 42;
|
||
|
|
static const __u64 num2 = 24;
|
||
|
|
static __u64 num3 = 0;
|
||
|
|
static __u64 num4 = 0xffeeff;
|
||
|
|
static const __u64 num5 = 0xabab;
|
||
|
|
static const __u64 num6 = 0xab;
|
||
|
|
|
||
|
|
/* Relocation tests for strings. */
|
||
|
|
static const char str0[32] = "abcdefghijklmnopqrstuvwxyz";
|
||
|
|
static char str1[32] = "abcdefghijklmnopqrstuvwxyz";
|
||
|
|
static char str2[32];
|
||
|
|
|
||
|
|
/* Relocation tests for structs. */
|
||
|
|
static const struct foo struct0 = {
|
||
|
|
.a = 42,
|
||
|
|
.b = 0xfefeefef,
|
||
|
|
.c = 0x1111111111111111ULL,
|
||
|
|
};
|
||
|
|
static struct foo struct1;
|
||
|
|
static const struct foo struct2;
|
||
|
|
static struct foo struct3 = {
|
||
|
|
.a = 41,
|
||
|
|
.b = 0xeeeeefef,
|
||
|
|
.c = 0x2111111111111111ULL,
|
||
|
|
};
|
||
|
|
|
||
|
|
#define test_reloc(map, num, var) \
|
||
|
|
do { \
|
||
|
|
__u32 key = num; \
|
||
|
|
bpf_map_update_elem(&result_##map, &key, var, 0); \
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
SEC("tc")
|
||
|
|
int load_static_data(struct __sk_buff *skb)
|
||
|
|
{
|
||
|
|
static const __u64 bar = ~0;
|
||
|
|
|
||
|
|
test_reloc(number, 0, &num0);
|
||
|
|
test_reloc(number, 1, &num1);
|
||
|
|
test_reloc(number, 2, &num2);
|
||
|
|
test_reloc(number, 3, &num3);
|
||
|
|
test_reloc(number, 4, &num4);
|
||
|
|
test_reloc(number, 5, &num5);
|
||
|
|
num4 = 1234;
|
||
|
|
test_reloc(number, 6, &num4);
|
||
|
|
test_reloc(number, 7, &num0);
|
||
|
|
test_reloc(number, 8, &num6);
|
||
|
|
|
||
|
|
test_reloc(string, 0, str0);
|
||
|
|
test_reloc(string, 1, str1);
|
||
|
|
test_reloc(string, 2, str2);
|
||
|
|
str1[5] = 'x';
|
||
|
|
test_reloc(string, 3, str1);
|
||
|
|
__builtin_memcpy(&str2[2], "hello", sizeof("hello"));
|
||
|
|
test_reloc(string, 4, str2);
|
||
|
|
|
||
|
|
test_reloc(struct, 0, &struct0);
|
||
|
|
test_reloc(struct, 1, &struct1);
|
||
|
|
test_reloc(struct, 2, &struct2);
|
||
|
|
test_reloc(struct, 3, &struct3);
|
||
|
|
|
||
|
|
test_reloc(number, 9, &struct0.c);
|
||
|
|
test_reloc(number, 10, &bar);
|
||
|
|
|
||
|
|
return TC_ACT_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
char _license[] SEC("license") = "GPL";
|