[src/trunk]: src/tests/lib/libbpfjit Add libbpfjit_jmp_ja_invalid test.

[alnsn <alnsn%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/b9526b995e3a
branches:  trunk
changeset: 806233:b9526b995e3a
user:      alnsn <alnsn%NetBSD.org@localhost>
date:      Wed Feb 11 23:17:16 2015 +0000

description:
Add libbpfjit_jmp_ja_invalid test.

diffstat:

 tests/lib/libbpfjit/t_bpfjit.c |  29 +++++++++++++++++++++++++++--
 1 files changed, 27 insertions(+), 2 deletions(-)

diffs (64 lines):

diff -r d7955075aa19 -r b9526b995e3a tests/lib/libbpfjit/t_bpfjit.c
--- a/tests/lib/libbpfjit/t_bpfjit.c    Wed Feb 11 23:07:13 2015 +0000
+++ b/tests/lib/libbpfjit/t_bpfjit.c    Wed Feb 11 23:17:16 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: t_bpfjit.c,v 1.9 2015/02/11 23:00:41 alnsn Exp $ */
+/*     $NetBSD: t_bpfjit.c,v 1.10 2015/02/11 23:17:16 alnsn Exp $ */
 
 /*-
  * Copyright (c) 2011-2012, 2014 Alexander Nasonov.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: t_bpfjit.c,v 1.9 2015/02/11 23:00:41 alnsn Exp $");
+__RCSID("$NetBSD: t_bpfjit.c,v 1.10 2015/02/11 23:17:16 alnsn Exp $");
 
 #include <atf-c.h>
 #include <stdint.h>
@@ -67,6 +67,7 @@
 {
        struct bpf_insn dummy;
 
+       ATF_CHECK(!bpf_validate(&dummy, 0));
        ATF_CHECK(bpfjit_generate_code(NULL, &dummy, 0) == NULL);
 }
 
@@ -1917,6 +1918,29 @@
        bpfjit_free_code(code);
 }
 
+ATF_TC(libbpfjit_jmp_ja_invalid);
+ATF_TC_HEAD(libbpfjit_jmp_ja_invalid, tc)
+{
+       atf_tc_set_md_var(tc, "descr",
+           "Test BPF_JMP+BPF_JA to invalid destination");
+}
+
+ATF_TC_BODY(libbpfjit_jmp_ja_invalid, tc)
+{
+       static struct bpf_insn insns[] = {
+               BPF_STMT(BPF_JMP+BPF_JA, 4),
+               BPF_STMT(BPF_RET+BPF_K, 0),
+               BPF_STMT(BPF_RET+BPF_K, 1),
+               BPF_STMT(BPF_RET+BPF_K, 2),
+               BPF_STMT(BPF_RET+BPF_K, 3),
+       };
+
+       size_t insn_count = sizeof(insns) / sizeof(insns[0]);
+
+       ATF_CHECK(!bpf_validate(insns, insn_count));
+       ATF_CHECK(bpfjit_generate_code(NULL, insns, insn_count) == NULL);
+}
+
 ATF_TC(libbpfjit_jmp_jgt_k);
 ATF_TC_HEAD(libbpfjit_jmp_jgt_k, tc)
 {
@@ -4553,6 +4577,7 @@
        ATF_TP_ADD_TC(tp, libbpfjit_alu_modulo_x);
        ATF_TP_ADD_TC(tp, libbpfjit_alu_neg);
        ATF_TP_ADD_TC(tp, libbpfjit_jmp_ja);
+       ATF_TP_ADD_TC(tp, libbpfjit_jmp_ja_invalid);
        ATF_TP_ADD_TC(tp, libbpfjit_jmp_jgt_k);
        ATF_TP_ADD_TC(tp, libbpfjit_jmp_jge_k);
        ATF_TP_ADD_TC(tp, libbpfjit_jmp_jeq_k);