summaryrefslogtreecommitdiff
path: root/tools/testing/selftests/bpf/prog_tests/verifier.c
blob: c60db8beeb734238f4cdb197292dcf1e58578290 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
// SPDX-License-Identifier: GPL-2.0-only

#include <test_progs.h>

#include "cap_helpers.h"
#include "verifier_and.skel.h"
#include "verifier_arena.skel.h"
#include "verifier_arena_large.skel.h"
#include "verifier_array_access.skel.h"
#include "verifier_basic_stack.skel.h"
#include "verifier_bitfield_write.skel.h"
#include "verifier_bounds.skel.h"
#include "verifier_bounds_deduction.skel.h"
#include "verifier_bounds_deduction_non_const.skel.h"
#include "verifier_bounds_mix_sign_unsign.skel.h"
#include "verifier_bpf_get_stack.skel.h"
#include "verifier_bswap.skel.h"
#include "verifier_btf_ctx_access.skel.h"
#include "verifier_btf_unreliable_prog.skel.h"
#include "verifier_cfg.skel.h"
#include "verifier_cgroup_inv_retcode.skel.h"
#include "verifier_cgroup_skb.skel.h"
#include "verifier_cgroup_storage.skel.h"
#include "verifier_const_or.skel.h"
#include "verifier_ctx.skel.h"
#include "verifier_ctx_sk_msg.skel.h"
#include "verifier_d_path.skel.h"
#include "verifier_direct_packet_access.skel.h"
#include "verifier_direct_stack_access_wraparound.skel.h"
#include "verifier_div0.skel.h"
#include "verifier_div_overflow.skel.h"
#include "verifier_global_subprogs.skel.h"
#include "verifier_global_ptr_args.skel.h"
#include "verifier_gotol.skel.h"
#include "verifier_helper_access_var_len.skel.h"
#include "verifier_helper_packet_access.skel.h"
#include "verifier_helper_restricted.skel.h"
#include "verifier_helper_value_access.skel.h"
#include "verifier_int_ptr.skel.h"
#include "verifier_iterating_callbacks.skel.h"
#include "verifier_jeq_infer_not_null.skel.h"
#include "verifier_ld_ind.skel.h"
#include "verifier_ldsx.skel.h"
#include "verifier_leak_ptr.skel.h"
#include "verifier_loops1.skel.h"
#include "verifier_lwt.skel.h"
#include "verifier_map_in_map.skel.h"
#include "verifier_map_ptr.skel.h"
#include "verifier_map_ptr_mixing.skel.h"
#include "verifier_map_ret_val.skel.h"
#include "verifier_masking.skel.h"
#include "verifier_meta_access.skel.h"
#include "verifier_movsx.skel.h"
#include "verifier_netfilter_ctx.skel.h"
#include "verifier_netfilter_retcode.skel.h"
#include "verifier_precision.skel.h"
#include "verifier_prevent_map_lookup.skel.h"
#include "verifier_raw_stack.skel.h"
#include "verifier_raw_tp_writable.skel.h"
#include "verifier_reg_equal.skel.h"
#include "verifier_ref_tracking.skel.h"
#include "verifier_regalloc.skel.h"
#include "verifier_ringbuf.skel.h"
#include "verifier_runtime_jit.skel.h"
#include "verifier_scalar_ids.skel.h"
#include "verifier_sdiv.skel.h"
#include "verifier_search_pruning.skel.h"
#include "verifier_sock.skel.h"
#include "verifier_sock_addr.skel.h"
#include "verifier_spill_fill.skel.h"
#include "verifier_spin_lock.skel.h"
#include "verifier_stack_ptr.skel.h"
#include "verifier_subprog_precision.skel.h"
#include "verifier_subreg.skel.h"
#include "verifier_typedef.skel.h"
#include "verifier_uninit.skel.h"
#include "verifier_unpriv.skel.h"
#include "verifier_unpriv_perf.skel.h"
#include "verifier_value_adj_spill.skel.h"
#include "verifier_value.skel.h"
#include "verifier_value_illegal_alu.skel.h"
#include "verifier_value_or_null.skel.h"
#include "verifier_value_ptr_arith.skel.h"
#include "verifier_var_off.skel.h"
#include "verifier_xadd.skel.h"
#include "verifier_xdp.skel.h"
#include "verifier_xdp_direct_packet_access.skel.h"

#define MAX_ENTRIES 11

struct test_val {
	unsigned int index;
	int foo[MAX_ENTRIES];
};

__maybe_unused
static void run_tests_aux(const char *skel_name,
			  skel_elf_bytes_fn elf_bytes_factory,
			  pre_execution_cb pre_execution_cb)
{
	struct test_loader tester = {};
	__u64 old_caps;
	int err;

	/* test_verifier tests are executed w/o CAP_SYS_ADMIN, do the same here */
	err = cap_disable_effective(1ULL << CAP_SYS_ADMIN, &old_caps);
	if (err) {
		PRINT_FAIL("failed to drop CAP_SYS_ADMIN: %i, %s\n", err, strerror(err));
		return;
	}

	test_loader__set_pre_execution_cb(&tester, pre_execution_cb);
	test_loader__run_subtests(&tester, skel_name, elf_bytes_factory);
	test_loader_fini(&tester);

	err = cap_enable_effective(old_caps, NULL);
	if (err)
		PRINT_FAIL("failed to restore CAP_SYS_ADMIN: %i, %s\n", err, strerror(err));
}

#define RUN(skel) run_tests_aux(#skel, skel##__elf_bytes, NULL)

void test_verifier_and(void)                  { RUN(verifier_and); }
void test_verifier_arena(void)                { RUN(verifier_arena); }
void test_verifier_arena_large(void)          { RUN(verifier_arena_large); }
void test_verifier_basic_stack(void)          { RUN(verifier_basic_stack); }
void test_verifier_bitfield_write(void)       { RUN(verifier_bitfield_write); }
void test_verifier_bounds(void)               { RUN(verifier_bounds); }
void test_verifier_bounds_deduction(void)     { RUN(verifier_bounds_deduction); }
void test_verifier_bounds_deduction_non_const(void)     { RUN(verifier_bounds_deduction_non_const); }
void test_verifier_bounds_mix_sign_unsign(void) { RUN(verifier_bounds_mix_sign_unsign); }
void test_verifier_bpf_get_stack(void)        { RUN(verifier_bpf_get_stack); }
void test_verifier_bswap(void)                { RUN(verifier_bswap); }
void test_verifier_btf_ctx_access(void)       { RUN(verifier_btf_ctx_access); }
void test_verifier_btf_unreliable_prog(void)  { RUN(verifier_btf_unreliable_prog); }
void test_verifier_cfg(void)                  { RUN(verifier_cfg); }
void test_verifier_cgroup_inv_retcode(void)   { RUN(verifier_cgroup_inv_retcode); }
void test_verifier_cgroup_skb(void)           { RUN(verifier_cgroup_skb); }
void test_verifier_cgroup_storage(void)       { RUN(verifier_cgroup_storage); }
void test_verifier_const_or(void)             { RUN(verifier_const_or); }
void test_verifier_ctx(void)                  { RUN(verifier_ctx); }
void test_verifier_ctx_sk_msg(void)           { RUN(verifier_ctx_sk_msg); }
void test_verifier_d_path(void)               { RUN(verifier_d_path); }
void test_verifier_direct_packet_access(void) { RUN(verifier_direct_packet_access); }
void test_verifier_direct_stack_access_wraparound(void) { RUN(verifier_direct_stack_access_wraparound); }
void test_verifier_div0(void)                 { RUN(verifier_div0); }
void test_verifier_div_overflow(void)         { RUN(verifier_div_overflow); }
void test_verifier_global_subprogs(void)      { RUN(verifier_global_subprogs); }
void test_verifier_global_ptr_args(void)      { RUN(verifier_global_ptr_args); }
void test_verifier_gotol(void)                { RUN(verifier_gotol); }
void test_verifier_helper_access_var_len(void) { RUN(verifier_helper_access_var_len); }
void test_verifier_helper_packet_access(void) { RUN(verifier_helper_packet_access); }
void test_verifier_helper_restricted(void)    { RUN(verifier_helper_restricted); }
void test_verifier_helper_value_access(void)  { RUN(verifier_helper_value_access); }
void test_verifier_int_ptr(void)              { RUN(verifier_int_ptr); }
void test_verifier_iterating_callbacks(void)  { RUN(verifier_iterating_callbacks); }
void test_verifier_jeq_infer_not_null(void)   { RUN(verifier_jeq_infer_not_null); }
void test_verifier_ld_ind(void)               { RUN(verifier_ld_ind); }
void test_verifier_ldsx(void)                  { RUN(verifier_ldsx); }
void test_verifier_leak_ptr(void)             { RUN(verifier_leak_ptr); }
void test_verifier_loops1(void)               { RUN(verifier_loops1); }
void test_verifier_lwt(void)                  { RUN(verifier_lwt); }
void test_verifier_map_in_map(void)           { RUN(verifier_map_in_map); }
void test_verifier_map_ptr(void)              { RUN(verifier_map_ptr); }
void test_verifier_map_ptr_mixing(void)       { RUN(verifier_map_ptr_mixing); }
void test_verifier_map_ret_val(void)          { RUN(verifier_map_ret_val); }
void test_verifier_masking(void)              { RUN(verifier_masking); }
void test_verifier_meta_access(void)          { RUN(verifier_meta_access); }
void test_verifier_movsx(void)                 { RUN(verifier_movsx); }
void test_verifier_netfilter_ctx(void)        { RUN(verifier_netfilter_ctx); }
void test_verifier_netfilter_retcode(void)    { RUN(verifier_netfilter_retcode); }
void test_verifier_precision(void)            { RUN(verifier_precision); }
void test_verifier_prevent_map_lookup(void)   { RUN(verifier_prevent_map_lookup); }
void test_verifier_raw_stack(void)            { RUN(verifier_raw_stack); }
void test_verifier_raw_tp_writable(void)      { RUN(verifier_raw_tp_writable); }
void test_verifier_reg_equal(void)            { RUN(verifier_reg_equal); }
void test_verifier_ref_tracking(void)         { RUN(verifier_ref_tracking); }
void test_verifier_regalloc(void)             { RUN(verifier_regalloc); }
void test_verifier_ringbuf(void)              { RUN(verifier_ringbuf); }
void test_verifier_runtime_jit(void)          { RUN(verifier_runtime_jit); }
void test_verifier_scalar_ids(void)           { RUN(verifier_scalar_ids); }
void test_verifier_sdiv(void)                 { RUN(verifier_sdiv); }
void test_verifier_search_pruning(void)       { RUN(verifier_search_pruning); }
void test_verifier_sock(void)                 { RUN(verifier_sock); }
void test_verifier_sock_addr(void)            { RUN(verifier_sock_addr); }
void test_verifier_spill_fill(void)           { RUN(verifier_spill_fill); }
void test_verifier_spin_lock(void)            { RUN(verifier_spin_lock); }
void test_verifier_stack_ptr(void)            { RUN(verifier_stack_ptr); }
void test_verifier_subprog_precision(void)    { RUN(verifier_subprog_precision); }
void test_verifier_subreg(void)               { RUN(verifier_subreg); }
void test_verifier_typedef(void)              { RUN(verifier_typedef); }
void test_verifier_uninit(void)               { RUN(verifier_uninit); }
void test_verifier_unpriv(void)               { RUN(verifier_unpriv); }
void test_verifier_unpriv_perf(void)          { RUN(verifier_unpriv_perf); }
void test_verifier_value_adj_spill(void)      { RUN(verifier_value_adj_spill); }
void test_verifier_value(void)                { RUN(verifier_value); }
void test_verifier_value_illegal_alu(void)    { RUN(verifier_value_illegal_alu); }
void test_verifier_value_or_null(void)        { RUN(verifier_value_or_null); }
void test_verifier_var_off(void)              { RUN(verifier_var_off); }
void test_verifier_xadd(void)                 { RUN(verifier_xadd); }
void test_verifier_xdp(void)                  { RUN(verifier_xdp); }
void test_verifier_xdp_direct_packet_access(void) { RUN(verifier_xdp_direct_packet_access); }

static int init_test_val_map(struct bpf_object *obj, char *map_name)
{
	struct test_val value = {
		.index = (6 + 1) * sizeof(int),
		.foo[6] = 0xabcdef12,
	};
	struct bpf_map *map;
	int err, key = 0;

	map = bpf_object__find_map_by_name(obj, map_name);
	if (!map) {
		PRINT_FAIL("Can't find map '%s'\n", map_name);
		return -EINVAL;
	}

	err = bpf_map_update_elem(bpf_map__fd(map), &key, &value, 0);
	if (err) {
		PRINT_FAIL("Error while updating map '%s': %d\n", map_name, err);
		return err;
	}

	return 0;
}

static int init_array_access_maps(struct bpf_object *obj)
{
	return init_test_val_map(obj, "map_array_ro");
}

void test_verifier_array_access(void)
{
	run_tests_aux("verifier_array_access",
		      verifier_array_access__elf_bytes,
		      init_array_access_maps);
}

static int init_value_ptr_arith_maps(struct bpf_object *obj)
{
	return init_test_val_map(obj, "map_array_48b");
}

void test_verifier_value_ptr_arith(void)
{
	run_tests_aux("verifier_value_ptr_arith",
		      verifier_value_ptr_arith__elf_bytes,
		      init_value_ptr_arith_maps);
}