lib/test_bpf: Add tests for unsigned BPF_JGT

Unsigned Jump-if-Greater-Than.

Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/lib/test_bpf.c b/lib/test_bpf.c
index e76fa4d..7e6fb49 100644 (file)
--- a/lib/test_bpf.c
+++ b/lib/test_bpf.c
@@ -4222,6 +4222,20 @@ static struct bpf_test tests[] = {
                { },
                { { 0, 1 } },
        },
+       {
+               "JMP_JGT_K: Unsigned jump: if (-1 > 1) return 1",
+               .u.insns_int = {
+                       BPF_ALU32_IMM(BPF_MOV, R0, 0),
+                       BPF_LD_IMM64(R1, -1),
+                       BPF_JMP_IMM(BPF_JGT, R1, 1, 1),
+                       BPF_EXIT_INSN(),
+                       BPF_ALU32_IMM(BPF_MOV, R0, 1),
+                       BPF_EXIT_INSN(),
+               },
+               INTERNAL,
+               { },
+               { { 0, 1 } },
+       },
        /* BPF_JMP | BPF_JGE | BPF_K */
        {
                "JMP_JGE_K: if (3 >= 2) return 1",
@@ -4404,6 +4418,21 @@ static struct bpf_test tests[] = {
                { },
                { { 0, 1 } },
        },
+       {
+               "JMP_JGT_X: Unsigned jump: if (-1 > 1) return 1",
+               .u.insns_int = {
+                       BPF_ALU32_IMM(BPF_MOV, R0, 0),
+                       BPF_LD_IMM64(R1, -1),
+                       BPF_LD_IMM64(R2, 1),
+                       BPF_JMP_REG(BPF_JGT, R1, R2, 1),
+                       BPF_EXIT_INSN(),
+                       BPF_ALU32_IMM(BPF_MOV, R0, 1),
+                       BPF_EXIT_INSN(),
+               },
+               INTERNAL,
+               { },
+               { { 0, 1 } },
+       },
        /* BPF_JMP | BPF_JGE | BPF_X */
        {
                "JMP_JGE_X: if (3 >= 2) return 1",