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Diffstat (limited to 'tools/testing/selftests/bpf/progs/verifier_cfg.c')
-rw-r--r--tools/testing/selftests/bpf/progs/verifier_cfg.c100
1 files changed, 100 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/verifier_cfg.c b/tools/testing/selftests/bpf/progs/verifier_cfg.c
new file mode 100644
index 000000000000..df7697b94007
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_cfg.c
@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/cfg.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("socket")
+__description("unreachable")
+__failure __msg("unreachable")
+__failure_unpriv
+__naked void unreachable(void)
+{
+ asm volatile (" \
+ exit; \
+ exit; \
+" ::: __clobber_all);
+}
+
+SEC("socket")
+__description("unreachable2")
+__failure __msg("unreachable")
+__failure_unpriv
+__naked void unreachable2(void)
+{
+ asm volatile (" \
+ goto l0_%=; \
+ goto l0_%=; \
+l0_%=: exit; \
+" ::: __clobber_all);
+}
+
+SEC("socket")
+__description("out of range jump")
+__failure __msg("jump out of range")
+__failure_unpriv
+__naked void out_of_range_jump(void)
+{
+ asm volatile (" \
+ goto l0_%=; \
+ exit; \
+l0_%=: \
+" ::: __clobber_all);
+}
+
+SEC("socket")
+__description("out of range jump2")
+__failure __msg("jump out of range")
+__failure_unpriv
+__naked void out_of_range_jump2(void)
+{
+ asm volatile (" \
+ goto -2; \
+ exit; \
+" ::: __clobber_all);
+}
+
+SEC("socket")
+__description("loop (back-edge)")
+__failure __msg("unreachable insn 1")
+__msg_unpriv("back-edge")
+__naked void loop_back_edge(void)
+{
+ asm volatile (" \
+l0_%=: goto l0_%=; \
+ exit; \
+" ::: __clobber_all);
+}
+
+SEC("socket")
+__description("loop2 (back-edge)")
+__failure __msg("unreachable insn 4")
+__msg_unpriv("back-edge")
+__naked void loop2_back_edge(void)
+{
+ asm volatile (" \
+l0_%=: r1 = r0; \
+ r2 = r0; \
+ r3 = r0; \
+ goto l0_%=; \
+ exit; \
+" ::: __clobber_all);
+}
+
+SEC("socket")
+__description("conditional loop")
+__failure __msg("infinite loop detected")
+__msg_unpriv("back-edge")
+__naked void conditional_loop(void)
+{
+ asm volatile (" \
+ r0 = r1; \
+l0_%=: r2 = r0; \
+ r3 = r0; \
+ if r1 == 0 goto l0_%=; \
+ exit; \
+" ::: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";