// SPDX-License-Identifier: GPL-2.0
/* Converted from tools/testing/selftests/bpf/verifier/helper_restricted.c */
#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
#include "bpf_misc.h"
struct val {
int cnt;
struct bpf_spin_lock l;
};
struct {
__uint(type, BPF_MAP_TYPE_ARRAY);
__uint(max_entries, 1);
__type(key, int);
__type(value, struct val);
} map_spin_lock SEC(".maps");
struct timer {
struct bpf_timer t;
};
struct {
__uint(type, BPF_MAP_TYPE_ARRAY);
__uint(max_entries, 1);
__type(key, int);
__type(value, struct timer);
} map_timer SEC(".maps");
SEC("kprobe")
__description("bpf_ktime_get_coarse_ns is forbidden in BPF_PROG_TYPE_KPROBE")
__failure __msg("program of this type cannot use helper bpf_ktime_get_coarse_ns")
__naked void in_bpf_prog_type_kprobe_1(void)
{
asm volatile (" \
call %[bpf_ktime_get_coarse_ns]; \
r0 = 0; \
exit; \
" :
: __imm(bpf_ktime_get_coarse_ns)
: __clobber_all);
}
SEC("tracepoint")
__description("bpf_ktime_get_coarse_ns is forbidden in BPF_PROG_TYPE_TRACEPOINT")
__failure __msg("program of this type cannot use helper bpf_ktime_get_coarse_ns")
__naked void in_bpf_prog_type_tracepoint_1(void)
{
asm volatile (" \
call %[bpf_ktime_get_coarse_ns]; \
r0 = 0; \
exit; \
" :
: __imm(bpf_ktime_get_coarse_ns)
: __clobber_all);
}
SEC("perf_event")
__description("bpf_ktime_get_coarse_ns is forbidden in BPF_PROG_TYPE_PERF_EVENT")
__failure __msg("program of this type cannot use helper bpf_ktime_get_coarse_ns")
__naked void bpf_prog_type_perf_event_1(void)
{
asm volatile (" \
call %[bpf_ktime_get_coarse_ns]; \
r0 = 0; \
exit; \
" :
: __imm(bpf_ktime_get_coarse_ns)
: __clobber_all);
}
SEC("raw_tracepoint")
__description("bpf_ktime_get_coarse_ns is forbidden in BPF_PROG_TYPE_RAW_TRACEPOINT")
__failure __msg("program of this type cannot use helper bpf_ktime_get_coarse_ns")
__naked void bpf_prog_type_raw_tracepoint_1(void)
{
asm volatile (" \
call %[bpf_ktime_get_coarse_ns]; \
r0 = 0; \
exit; \
" :
: __imm(bpf_ktime_get_coarse_ns)
: __clobber_all);
}
SEC("kprobe")
__description("bpf_timer_init isn restricted in BPF_PROG_TYPE_KPROBE")
__failure __msg("tracing progs cannot use bpf_timer yet")
__naked void in_bpf_prog_type_kprobe_2(void)
{
asm volatile (" \
r2 = r10; \
r2 += -8; \
r1 = 0; \
*(u64*)(r2 + 0) = r1; \
r1 = %[map_timer] ll; \
call %[bpf_map_lookup_elem]; \
if r0 == 0 goto l0_%=; \
r1 = r0; \
r2 = %[map_timer] ll; \
r3 = 1; \
l0_%=: call %[bpf_timer_init]; \
exit; \
" :
: __imm(bpf_map_lookup_elem),
__imm(bpf_timer_init),
__imm_addr(map_timer)
: __clobber_all);
}
SEC("perf_event")
__description("bpf_timer_init is forbidden in BPF_PROG_TYPE_PERF_EVENT")
__failure __msg("tracing progs cannot use bpf_timer yet")
__naked void bpf_prog_type_perf_event_2(void)
{
asm volatile (" \
r2 = r10; \
r2 += -8; \
r1 = 0; \
*(u64*)(r2 + 0) = r1; \
r1 = %[map_timer] ll; \
call %[bpf_map_lookup_elem]; \
if r0 == 0 goto l0_%=; \
r1 = r0; \
r2 = %[map_timer] ll; \
r3 = 1; \
l0_%=: call %[bpf_timer_init]; \
exit; \
" :
: __imm(bpf_map_lookup_elem),
__imm(bpf_timer_init),
__imm_addr(map_timer)
: __clobber_all);
}
SEC("tracepoint")
__description("bpf_timer_init is forbidden in BPF_PROG_TYPE_TRACEPOINT")
__failure __msg("tracing progs cannot use bpf_timer yet")
__naked void in_bpf_prog_type_tracepoint_2(void)
{
asm volatile (" \
r2 = r10; \
r2 += -8; \
r1 = 0; \
*(u64*)(r2 + 0) = r1; \
r1 = %[map_timer] ll; \
call %[bpf_map_lookup_elem]; \
if r0 == 0 goto l0_%=; \
r1 = r0; \
r2 = %[map_timer] ll; \
r3 = 1; \
l0_%=: call %[bpf_timer_init]; \
exit; \
" :
: __imm(bpf_map_lookup_elem),
__imm(bpf_timer_init),
__imm_addr(map_timer)
: __clobber_all);
}
SEC("raw_tracepoint")
__description("bpf_timer_init is forbidden in BPF_PROG_TYPE_RAW_TRACEPOINT")
__failure __msg("tracing progs cannot use bpf_timer yet")
__naked void bpf_prog_type_raw_tracepoint_2(void)
{
asm volatile (" \
r2 = r10; \
r2 += -8; \
r1 = 0; \
*(u64*)(r2 + 0) = r1; \
r1 = %[map_timer] ll; \
call %[bpf_map_lookup_elem]; \
if r0 == 0 goto l0_%=; \
r1 = r0; \
r2 = %[map_timer] ll; \
r3 = 1; \
l0_%=: call %[bpf_timer_init]; \
exit; \
" :
: __imm(bpf_map_lookup_elem),
__imm(bpf_timer_init),
__imm_addr(map_timer)
: __clobber_all);
}
SEC("kprobe")
__description("bpf_spin_lock is forbidden in BPF_PROG_TYPE_KPROBE")
__failure __msg("tracing progs cannot use bpf_spin_lock yet")
__naked void in_bpf_prog_type_kprobe_3(void)
{
asm volatile (" \
r2 = r10; \
r2 += -8; \
r1 = 0; \
*(u64*)(r2 + 0) = r1; \
r1 = %[map_spin_lock] ll; \
call %[bpf_map_lookup_elem]; \
if r0 == 0 goto l0_%=; \
r1 = r0; \
call %[bpf_spin_lock]; \
l0_%=: exit; \
" :
: __imm(bpf_map_lookup_elem),
__imm(bpf_spin_lock),
__imm_addr(map_spin_lock)
: __clobber_all);
}
SEC("tracepoint")
__description("bpf_spin_lock is forbidden in BPF_PROG_TYPE_TRACEPOINT")
__failure __msg("tracing progs cannot use bpf_spin_lock yet")
__naked void in_bpf_prog_type_tracepoint_3(void)
{
asm volatile (" \
r2 = r10; \
r2 += -8; \
r1 = 0; \
*(u64*)(r2 + 0) = r1; \
r1 = %[map_spin_lock] ll; \
call %[bpf_map_lookup_elem]; \
if r0 == 0 goto l0_%=; \
r1 = r0; \
call %[bpf_spin_lock]; \
l0_%=: exit; \
" :
: __imm(bpf_map_lookup_elem),
__imm(bpf_spin_lock),
__imm_addr(map_spin_lock)
: __clobber_all);
}
SEC("perf_event")
__description("bpf_spin_lock is forbidden in BPF_PROG_TYPE_PERF_EVENT")
__failure __msg("tracing progs cannot use bpf_spin_lock yet")
__naked void bpf_prog_type_perf_event_3(void)
{
asm volatile (" \
r2 = r10; \
r2 += -8; \
r1 = 0; \
*(u64*)(r2 + 0) = r1; \
r1 = %[map_spin_lock] ll; \
call %[bpf_map_lookup_elem]; \
if r0 == 0 goto l0_%=; \
r1 = r0; \
call %[bpf_spin_lock]; \
l0_%=: exit; \
" :
: __imm(bpf_map_lookup_elem),
__imm(bpf_spin_lock),
__imm_addr(map_spin_lock)
: __clobber_all);
}
SEC("raw_tracepoint")
__description("bpf_spin_lock is forbidden in BPF_PROG_TYPE_RAW_TRACEPOINT")
__failure __msg("tracing progs cannot use bpf_spin_lock yet")
__naked void bpf_prog_type_raw_tracepoint_3(void)
{
asm volatile (" \
r2 = r10; \
r2 += -8; \
r1 = 0; \
*(u64*)(r2 + 0) = r1; \
r1 = %[map_spin_lock] ll; \
call %[bpf_map_lookup_elem]; \
if r0 == 0 goto l0_%=; \
r1 = r0; \
call %[bpf_spin_lock]; \
l0_%=: exit; \
" :
: __imm(bpf_map_lookup_elem),
__imm(bpf_spin_lock),
__imm_addr(map_spin_lock)
: __clobber_all);
}
char _license[] SEC("license") = "GPL";
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