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