1 // SPDX-License-Identifier: GPL-2.0 2 3 #include <linux/bpf.h> 4 #include <bpf/bpf_helpers.h> 5 #include "bpf_misc.h" 6 7 SEC("netfilter") 8 __description("bpf_exit with invalid return code. test1") 9 __failure __msg("R0 is not a known value") with_invalid_return_code_test1(void)10__naked void with_invalid_return_code_test1(void) 11 { 12 asm volatile (" \ 13 r0 = *(u64*)(r1 + 0); \ 14 exit; \ 15 " ::: __clobber_all); 16 } 17 18 SEC("netfilter") 19 __description("bpf_exit with valid return code. test2") 20 __success with_valid_return_code_test2(void)21__naked void with_valid_return_code_test2(void) 22 { 23 asm volatile (" \ 24 r0 = 0; \ 25 exit; \ 26 " ::: __clobber_all); 27 } 28 29 SEC("netfilter") 30 __description("bpf_exit with valid return code. test3") 31 __success with_valid_return_code_test3(void)32__naked void with_valid_return_code_test3(void) 33 { 34 asm volatile (" \ 35 r0 = 1; \ 36 exit; \ 37 " ::: __clobber_all); 38 } 39 40 SEC("netfilter") 41 __description("bpf_exit with invalid return code. test4") 42 __failure __msg("R0 has value (0x2; 0x0)") with_invalid_return_code_test4(void)43__naked void with_invalid_return_code_test4(void) 44 { 45 asm volatile (" \ 46 r0 = 2; \ 47 exit; \ 48 " ::: __clobber_all); 49 } 50