atomic_invalid.c

 1#define __INVALID_ATOMIC_ACCESS_TEST(op)				\
 2	{								\
 3		"atomic " #op " access through non-pointer ",		\
 4		.insns = {						\
 5			BPF_MOV64_IMM(BPF_REG_0, 1),			\
 6			BPF_MOV64_IMM(BPF_REG_1, 0),			\
 7			BPF_ATOMIC_OP(BPF_DW, op, BPF_REG_1, BPF_REG_0, -8), \
 8			BPF_MOV64_IMM(BPF_REG_0, 0),			\
 9			BPF_EXIT_INSN(),				\
10		},							\
11		.result = REJECT,					\
12		.errstr = "R1 invalid mem access 'scalar'"		\
13	}
14__INVALID_ATOMIC_ACCESS_TEST(BPF_ADD),
15__INVALID_ATOMIC_ACCESS_TEST(BPF_ADD | BPF_FETCH),
16__INVALID_ATOMIC_ACCESS_TEST(BPF_ADD),
17__INVALID_ATOMIC_ACCESS_TEST(BPF_ADD | BPF_FETCH),
18__INVALID_ATOMIC_ACCESS_TEST(BPF_AND),
19__INVALID_ATOMIC_ACCESS_TEST(BPF_AND | BPF_FETCH),
20__INVALID_ATOMIC_ACCESS_TEST(BPF_OR),
21__INVALID_ATOMIC_ACCESS_TEST(BPF_OR | BPF_FETCH),
22__INVALID_ATOMIC_ACCESS_TEST(BPF_XOR),
23__INVALID_ATOMIC_ACCESS_TEST(BPF_XOR | BPF_FETCH),
24__INVALID_ATOMIC_ACCESS_TEST(BPF_XCHG),
25__INVALID_ATOMIC_ACCESS_TEST(BPF_CMPXCHG),