diff options
Diffstat (limited to 'tools/testing/selftests/bpf/progs/map_kptr_fail.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/map_kptr_fail.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/map_kptr_fail.c b/tools/testing/selftests/bpf/progs/map_kptr_fail.c index 05e209b1b12a..760e41e1a632 100644 --- a/tools/testing/selftests/bpf/progs/map_kptr_fail.c +++ b/tools/testing/selftests/bpf/progs/map_kptr_fail.c @@ -3,6 +3,7 @@ #include <bpf/bpf_tracing.h> #include <bpf/bpf_helpers.h> #include <bpf/bpf_core_read.h> +#include "bpf_misc.h" struct map_value { char buf[8]; @@ -23,6 +24,7 @@ extern struct prog_test_ref_kfunc * bpf_kfunc_call_test_kptr_get(struct prog_test_ref_kfunc **p, int a, int b) __ksym; SEC("?tc") +__failure __msg("kptr access size must be BPF_DW") int size_not_bpf_dw(struct __sk_buff *ctx) { struct map_value *v; @@ -37,6 +39,7 @@ int size_not_bpf_dw(struct __sk_buff *ctx) } SEC("?tc") +__failure __msg("kptr access cannot have variable offset") int non_const_var_off(struct __sk_buff *ctx) { struct map_value *v; @@ -55,6 +58,7 @@ int non_const_var_off(struct __sk_buff *ctx) } SEC("?tc") +__failure __msg("R1 doesn't have constant offset. kptr has to be") int non_const_var_off_kptr_xchg(struct __sk_buff *ctx) { struct map_value *v; @@ -73,6 +77,7 @@ int non_const_var_off_kptr_xchg(struct __sk_buff *ctx) } SEC("?tc") +__failure __msg("kptr access misaligned expected=8 off=7") int misaligned_access_write(struct __sk_buff *ctx) { struct map_value *v; @@ -88,6 +93,7 @@ int misaligned_access_write(struct __sk_buff *ctx) } SEC("?tc") +__failure __msg("kptr access misaligned expected=8 off=1") int misaligned_access_read(struct __sk_buff *ctx) { struct map_value *v; @@ -101,6 +107,7 @@ int misaligned_access_read(struct __sk_buff *ctx) } SEC("?tc") +__failure __msg("variable untrusted_ptr_ access var_off=(0x0; 0x1e0)") int reject_var_off_store(struct __sk_buff *ctx) { struct prog_test_ref_kfunc *unref_ptr; @@ -124,6 +131,7 @@ int reject_var_off_store(struct __sk_buff *ctx) } SEC("?tc") +__failure __msg("invalid kptr access, R1 type=untrusted_ptr_prog_test_ref_kfunc") int reject_bad_type_match(struct __sk_buff *ctx) { struct prog_test_ref_kfunc *unref_ptr; @@ -144,6 +152,7 @@ int reject_bad_type_match(struct __sk_buff *ctx) } SEC("?tc") +__failure __msg("R1 type=untrusted_ptr_or_null_ expected=percpu_ptr_") int marked_as_untrusted_or_null(struct __sk_buff *ctx) { struct map_value *v; @@ -158,6 +167,7 @@ int marked_as_untrusted_or_null(struct __sk_buff *ctx) } SEC("?tc") +__failure __msg("access beyond struct prog_test_ref_kfunc at off 32 size 4") int correct_btf_id_check_size(struct __sk_buff *ctx) { struct prog_test_ref_kfunc *p; @@ -175,6 +185,7 @@ int correct_btf_id_check_size(struct __sk_buff *ctx) } SEC("?tc") +__failure __msg("R1 type=untrusted_ptr_ expected=percpu_ptr_") int inherit_untrusted_on_walk(struct __sk_buff *ctx) { struct prog_test_ref_kfunc *unref_ptr; @@ -194,6 +205,7 @@ int inherit_untrusted_on_walk(struct __sk_buff *ctx) } SEC("?tc") +__failure __msg("off=8 kptr isn't referenced kptr") int reject_kptr_xchg_on_unref(struct __sk_buff *ctx) { struct map_value *v; @@ -208,6 +220,7 @@ int reject_kptr_xchg_on_unref(struct __sk_buff *ctx) } SEC("?tc") +__failure __msg("arg#0 expected pointer to map value") int reject_kptr_get_no_map_val(struct __sk_buff *ctx) { bpf_kfunc_call_test_kptr_get((void *)&ctx, 0, 0); @@ -215,6 +228,7 @@ int reject_kptr_get_no_map_val(struct __sk_buff *ctx) } SEC("?tc") +__failure __msg("arg#0 expected pointer to map value") int reject_kptr_get_no_null_map_val(struct __sk_buff *ctx) { bpf_kfunc_call_test_kptr_get(bpf_map_lookup_elem(&array_map, &(int){0}), 0, 0); @@ -222,6 +236,7 @@ int reject_kptr_get_no_null_map_val(struct __sk_buff *ctx) } SEC("?tc") +__failure __msg("arg#0 no referenced kptr at map value offset=0") int reject_kptr_get_no_kptr(struct __sk_buff *ctx) { struct map_value *v; @@ -236,6 +251,7 @@ int reject_kptr_get_no_kptr(struct __sk_buff *ctx) } SEC("?tc") +__failure __msg("arg#0 no referenced kptr at map value offset=8") int reject_kptr_get_on_unref(struct __sk_buff *ctx) { struct map_value *v; @@ -250,6 +266,7 @@ int reject_kptr_get_on_unref(struct __sk_buff *ctx) } SEC("?tc") +__failure __msg("kernel function bpf_kfunc_call_test_kptr_get args#0") int reject_kptr_get_bad_type_match(struct __sk_buff *ctx) { struct map_value *v; @@ -264,6 +281,7 @@ int reject_kptr_get_bad_type_match(struct __sk_buff *ctx) } SEC("?tc") +__failure __msg("R1 type=untrusted_ptr_or_null_ expected=percpu_ptr_") int mark_ref_as_untrusted_or_null(struct __sk_buff *ctx) { struct map_value *v; @@ -278,6 +296,7 @@ int mark_ref_as_untrusted_or_null(struct __sk_buff *ctx) } SEC("?tc") +__failure __msg("store to referenced kptr disallowed") int reject_untrusted_store_to_ref(struct __sk_buff *ctx) { struct prog_test_ref_kfunc *p; @@ -297,6 +316,7 @@ int reject_untrusted_store_to_ref(struct __sk_buff *ctx) } SEC("?tc") +__failure __msg("R2 type=untrusted_ptr_ expected=ptr_") int reject_untrusted_xchg(struct __sk_buff *ctx) { struct prog_test_ref_kfunc *p; @@ -315,6 +335,8 @@ int reject_untrusted_xchg(struct __sk_buff *ctx) } SEC("?tc") +__failure +__msg("invalid kptr access, R2 type=ptr_prog_test_ref_kfunc expected=ptr_prog_test_member") int reject_bad_type_xchg(struct __sk_buff *ctx) { struct prog_test_ref_kfunc *ref_ptr; @@ -333,6 +355,7 @@ int reject_bad_type_xchg(struct __sk_buff *ctx) } SEC("?tc") +__failure __msg("invalid kptr access, R2 type=ptr_prog_test_ref_kfunc") int reject_member_of_ref_xchg(struct __sk_buff *ctx) { struct prog_test_ref_kfunc *ref_ptr; @@ -351,6 +374,7 @@ int reject_member_of_ref_xchg(struct __sk_buff *ctx) } SEC("?syscall") +__failure __msg("kptr cannot be accessed indirectly by helper") int reject_indirect_helper_access(struct __sk_buff *ctx) { struct map_value *v; @@ -371,6 +395,7 @@ int write_func(int *p) } SEC("?tc") +__failure __msg("kptr cannot be accessed indirectly by helper") int reject_indirect_global_func_access(struct __sk_buff *ctx) { struct map_value *v; @@ -384,6 +409,7 @@ int reject_indirect_global_func_access(struct __sk_buff *ctx) } SEC("?tc") +__failure __msg("Unreleased reference id=5 alloc_insn=") int kptr_xchg_ref_state(struct __sk_buff *ctx) { struct prog_test_ref_kfunc *p; @@ -402,6 +428,7 @@ int kptr_xchg_ref_state(struct __sk_buff *ctx) } SEC("?tc") +__failure __msg("Unreleased reference id=3 alloc_insn=") int kptr_get_ref_state(struct __sk_buff *ctx) { struct map_value *v; |