| // SPDX-License-Identifier: GPL-2.0 |
| |
| #include <linux/bpf.h> |
| #include <bpf/bpf_helpers.h> |
| #include "bpf_misc.h" |
| |
| SEC("netfilter") |
| __description("bpf_exit with invalid return code. test1") |
| __failure __msg("R0 is not a known value") |
| __naked void with_invalid_return_code_test1(void) |
| { |
| asm volatile (" \ |
| r0 = *(u64*)(r1 + 0); \ |
| exit; \ |
| " ::: __clobber_all); |
| } |
| |
| SEC("netfilter") |
| __description("bpf_exit with valid return code. test2") |
| __success |
| __naked void with_valid_return_code_test2(void) |
| { |
| asm volatile (" \ |
| r0 = 0; \ |
| exit; \ |
| " ::: __clobber_all); |
| } |
| |
| SEC("netfilter") |
| __description("bpf_exit with valid return code. test3") |
| __success |
| __naked void with_valid_return_code_test3(void) |
| { |
| asm volatile (" \ |
| r0 = 1; \ |
| exit; \ |
| " ::: __clobber_all); |
| } |
| |
| SEC("netfilter") |
| __description("bpf_exit with invalid return code. test4") |
| __failure __msg("R0 has smin=2 smax=2 should have been in [0, 1]") |
| __naked void with_invalid_return_code_test4(void) |
| { |
| asm volatile (" \ |
| r0 = 2; \ |
| exit; \ |
| " ::: __clobber_all); |
| } |