1*047687a7SEduard Zingerman // SPDX-License-Identifier: GPL-2.0 2*047687a7SEduard Zingerman /* Converted from tools/testing/selftests/bpf/verifier/cgroup_inv_retcode.c */ 3*047687a7SEduard Zingerman 4*047687a7SEduard Zingerman #include <linux/bpf.h> 5*047687a7SEduard Zingerman #include <bpf/bpf_helpers.h> 6*047687a7SEduard Zingerman #include "bpf_misc.h" 7*047687a7SEduard Zingerman 8*047687a7SEduard Zingerman SEC("cgroup/sock") 9*047687a7SEduard Zingerman __description("bpf_exit with invalid return code. test1") 10*047687a7SEduard Zingerman __failure __msg("R0 has value (0x0; 0xffffffff)") with_invalid_return_code_test1(void)11*047687a7SEduard Zingerman__naked void with_invalid_return_code_test1(void) 12*047687a7SEduard Zingerman { 13*047687a7SEduard Zingerman asm volatile (" \ 14*047687a7SEduard Zingerman r0 = *(u32*)(r1 + 0); \ 15*047687a7SEduard Zingerman exit; \ 16*047687a7SEduard Zingerman " ::: __clobber_all); 17*047687a7SEduard Zingerman } 18*047687a7SEduard Zingerman 19*047687a7SEduard Zingerman SEC("cgroup/sock") 20*047687a7SEduard Zingerman __description("bpf_exit with invalid return code. test2") 21*047687a7SEduard Zingerman __success with_invalid_return_code_test2(void)22*047687a7SEduard Zingerman__naked void with_invalid_return_code_test2(void) 23*047687a7SEduard Zingerman { 24*047687a7SEduard Zingerman asm volatile (" \ 25*047687a7SEduard Zingerman r0 = *(u32*)(r1 + 0); \ 26*047687a7SEduard Zingerman r0 &= 1; \ 27*047687a7SEduard Zingerman exit; \ 28*047687a7SEduard Zingerman " ::: __clobber_all); 29*047687a7SEduard Zingerman } 30*047687a7SEduard Zingerman 31*047687a7SEduard Zingerman SEC("cgroup/sock") 32*047687a7SEduard Zingerman __description("bpf_exit with invalid return code. test3") 33*047687a7SEduard Zingerman __failure __msg("R0 has value (0x0; 0x3)") with_invalid_return_code_test3(void)34*047687a7SEduard Zingerman__naked void with_invalid_return_code_test3(void) 35*047687a7SEduard Zingerman { 36*047687a7SEduard Zingerman asm volatile (" \ 37*047687a7SEduard Zingerman r0 = *(u32*)(r1 + 0); \ 38*047687a7SEduard Zingerman r0 &= 3; \ 39*047687a7SEduard Zingerman exit; \ 40*047687a7SEduard Zingerman " ::: __clobber_all); 41*047687a7SEduard Zingerman } 42*047687a7SEduard Zingerman 43*047687a7SEduard Zingerman SEC("cgroup/sock") 44*047687a7SEduard Zingerman __description("bpf_exit with invalid return code. test4") 45*047687a7SEduard Zingerman __success with_invalid_return_code_test4(void)46*047687a7SEduard Zingerman__naked void with_invalid_return_code_test4(void) 47*047687a7SEduard Zingerman { 48*047687a7SEduard Zingerman asm volatile (" \ 49*047687a7SEduard Zingerman r0 = 1; \ 50*047687a7SEduard Zingerman exit; \ 51*047687a7SEduard Zingerman " ::: __clobber_all); 52*047687a7SEduard Zingerman } 53*047687a7SEduard Zingerman 54*047687a7SEduard Zingerman SEC("cgroup/sock") 55*047687a7SEduard Zingerman __description("bpf_exit with invalid return code. test5") 56*047687a7SEduard Zingerman __failure __msg("R0 has value (0x2; 0x0)") with_invalid_return_code_test5(void)57*047687a7SEduard Zingerman__naked void with_invalid_return_code_test5(void) 58*047687a7SEduard Zingerman { 59*047687a7SEduard Zingerman asm volatile (" \ 60*047687a7SEduard Zingerman r0 = 2; \ 61*047687a7SEduard Zingerman exit; \ 62*047687a7SEduard Zingerman " ::: __clobber_all); 63*047687a7SEduard Zingerman } 64*047687a7SEduard Zingerman 65*047687a7SEduard Zingerman SEC("cgroup/sock") 66*047687a7SEduard Zingerman __description("bpf_exit with invalid return code. test6") 67*047687a7SEduard Zingerman __failure __msg("R0 is not a known value (ctx)") with_invalid_return_code_test6(void)68*047687a7SEduard Zingerman__naked void with_invalid_return_code_test6(void) 69*047687a7SEduard Zingerman { 70*047687a7SEduard Zingerman asm volatile (" \ 71*047687a7SEduard Zingerman r0 = r1; \ 72*047687a7SEduard Zingerman exit; \ 73*047687a7SEduard Zingerman " ::: __clobber_all); 74*047687a7SEduard Zingerman } 75*047687a7SEduard Zingerman 76*047687a7SEduard Zingerman SEC("cgroup/sock") 77*047687a7SEduard Zingerman __description("bpf_exit with invalid return code. test7") 78*047687a7SEduard Zingerman __failure __msg("R0 has unknown scalar value") with_invalid_return_code_test7(void)79*047687a7SEduard Zingerman__naked void with_invalid_return_code_test7(void) 80*047687a7SEduard Zingerman { 81*047687a7SEduard Zingerman asm volatile (" \ 82*047687a7SEduard Zingerman r0 = *(u32*)(r1 + 0); \ 83*047687a7SEduard Zingerman r2 = *(u32*)(r1 + 4); \ 84*047687a7SEduard Zingerman r0 *= r2; \ 85*047687a7SEduard Zingerman exit; \ 86*047687a7SEduard Zingerman " ::: __clobber_all); 87*047687a7SEduard Zingerman } 88*047687a7SEduard Zingerman 89*047687a7SEduard Zingerman char _license[] SEC("license") = "GPL"; 90