From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Sasha Levin To: "stable@vger.kernel.org" , "linux-kernel@vger.kernel.org" CC: Prashant Bhole , Daniel Borkmann , Sasha Levin Subject: [PATCH AUTOSEL for 4.15 077/189] bpf: test_maps: cleanup sockmaps when test ends Date: Mon, 9 Apr 2018 00:17:45 +0000 Message-ID: <20180409001637.162453-77-alexander.levin@microsoft.com> References: <20180409001637.162453-1-alexander.levin@microsoft.com> In-Reply-To: <20180409001637.162453-1-alexander.levin@microsoft.com> Content-Language: en-US Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: From: Prashant Bhole [ Upstream commit 783687810e986a15ffbf86c516a1a48ff37f38f7 ] Bug: BPF programs and maps related to sockmaps test exist in memory even after test_maps ends. This patch fixes it as a short term workaround (sockmap kernel side needs real fixing) by empyting sockmaps when test ends. Fixes: 6f6d33f3b3d0f ("bpf: selftests add sockmap tests") Signed-off-by: Prashant Bhole [ daniel: Note on workaround. ] Signed-off-by: Daniel Borkmann Signed-off-by: Sasha Levin --- tools/testing/selftests/bpf/test_maps.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/bpf/test_maps.c b/tools/testing/selfte= sts/bpf/test_maps.c index 040356ecc862..5fb1355f80fc 100644 --- a/tools/testing/selftests/bpf/test_maps.c +++ b/tools/testing/selftests/bpf/test_maps.c @@ -463,7 +463,7 @@ static void test_devmap(int task, void *data) #define SOCKMAP_VERDICT_PROG "./sockmap_verdict_prog.o" static void test_sockmap(int tasks, void *data) { - int one =3D 1, map_fd_rx, map_fd_tx, map_fd_break, s, sc, rc; + int one =3D 1, map_fd_rx =3D 0, map_fd_tx =3D 0, map_fd_break, s, sc, rc; struct bpf_map *bpf_map_rx, *bpf_map_tx, *bpf_map_break; int ports[] =3D {50200, 50201, 50202, 50204}; int err, i, fd, udp, sfd[6] =3D {0xdeadbeef}; @@ -868,9 +868,12 @@ static void test_sockmap(int tasks, void *data) goto out_sockmap; } =20 - /* Test map close sockets */ - for (i =3D 0; i < 6; i++) + /* Test map close sockets and empty maps */ + for (i =3D 0; i < 6; i++) { + bpf_map_delete_elem(map_fd_tx, &i); + bpf_map_delete_elem(map_fd_rx, &i); close(sfd[i]); + } close(fd); close(map_fd_rx); bpf_object__close(obj); @@ -881,8 +884,13 @@ out: printf("Failed to create sockmap '%i:%s'!\n", i, strerror(errno)); exit(1); out_sockmap: - for (i =3D 0; i < 6; i++) + for (i =3D 0; i < 6; i++) { + if (map_fd_tx) + bpf_map_delete_elem(map_fd_tx, &i); + if (map_fd_rx) + bpf_map_delete_elem(map_fd_rx, &i); close(sfd[i]); + } close(fd); exit(1); } --=20 2.15.1