From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roman Gushchin Subject: [PATCH v3 bpf-next 2/4] selftests/bpf: convert test_cgrp2_attach2 example into kselftest Date: Thu, 23 May 2019 12:45:30 -0700 Message-ID: <20190523194532.2376233-3-guro@fb.com> References: <20190523194532.2376233-1-guro@fb.com> Mime-Version: 1.0 Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=facebook; bh=QQiS0Ec1c0IdH4uQub/iylmmyoLnQRDNT9RhJZZHNRU=; b=esCI981y+85aqemW0WXPtvUq1G3zEHwcKEGsexPTEAZpvMtEczpJ9R7f9wPX/LFWmf6n oigrPe+Kd6yhkHeCrPUJe/fVzS2tMZUnf+jbIuQEqI8yDZJp1y9JGbGtsxilJVLd74U3 v7RU9FvVeeUWjkG2wmtGCEI315AFDzy7laE= In-Reply-To: <20190523194532.2376233-1-guro@fb.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Alexei Starovoitov , bpf@vger.kernel.org Cc: Daniel Borkmann , netdev@vger.kernel.org, Tejun Heo , kernel-team@fb.com, cgroups@vger.kernel.org, Stanislav Fomichev , Yonghong Song , linux-kernel@vger.kernel.org, Roman Gushchin Convert test_cgrp2_attach2 example into a proper test_cgroup_attach kselftest. It's better because we do run kselftest on a constant basis, so there are better chances to spot a potential regression. Also make it slightly less verbose to conform kselftests output style. Output example: $ ./test_cgroup_attach #override:PASS #multi:PASS test_cgroup_attach:PASS Signed-off-by: Roman Gushchin Acked-by: Yonghong Song --- samples/bpf/Makefile | 2 - tools/testing/selftests/bpf/Makefile | 4 +- .../selftests/bpf/test_cgroup_attach.c | 50 ++++++++++++------- 3 files changed, 36 insertions(+), 20 deletions(-) rename samples/bpf/test_cgrp2_attach2.c => tools/testing/selftests/bpf/test_cgroup_attach.c (91%) diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile index 4f0a1cdbfe7c..253e5a2856be 100644 --- a/samples/bpf/Makefile +++ b/samples/bpf/Makefile @@ -26,7 +26,6 @@ hostprogs-y += map_perf_test hostprogs-y += test_overhead hostprogs-y += test_cgrp2_array_pin hostprogs-y += test_cgrp2_attach -hostprogs-y += test_cgrp2_attach2 hostprogs-y += test_cgrp2_sock hostprogs-y += test_cgrp2_sock2 hostprogs-y += xdp1 @@ -81,7 +80,6 @@ map_perf_test-objs := bpf_load.o map_perf_test_user.o test_overhead-objs := bpf_load.o test_overhead_user.o test_cgrp2_array_pin-objs := test_cgrp2_array_pin.o test_cgrp2_attach-objs := test_cgrp2_attach.o -test_cgrp2_attach2-objs := test_cgrp2_attach2.o $(CGROUP_HELPERS) test_cgrp2_sock-objs := test_cgrp2_sock.o test_cgrp2_sock2-objs := bpf_load.o test_cgrp2_sock2.o xdp1-objs := xdp1_user.o diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index 66f2dca1dee1..e09f419f4d7e 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -23,7 +23,8 @@ TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test test_align test_verifier_log test_dev_cgroup test_tcpbpf_user \ test_sock test_btf test_sockmap test_lirc_mode2_user get_cgroup_id_user \ test_socket_cookie test_cgroup_storage test_select_reuseport test_section_names \ - test_netcnt test_tcpnotify_user test_sock_fields test_sysctl + test_netcnt test_tcpnotify_user test_sock_fields test_sysctl \ + test_cgroup_attach BPF_OBJ_FILES = $(patsubst %.c,%.o, $(notdir $(wildcard progs/*.c))) TEST_GEN_FILES = $(BPF_OBJ_FILES) @@ -96,6 +97,7 @@ $(OUTPUT)/test_cgroup_storage: cgroup_helpers.c $(OUTPUT)/test_netcnt: cgroup_helpers.c $(OUTPUT)/test_sock_fields: cgroup_helpers.c $(OUTPUT)/test_sysctl: cgroup_helpers.c +$(OUTPUT)/test_cgroup_attach: cgroup_helpers.c .PHONY: force diff --git a/samples/bpf/test_cgrp2_attach2.c b/tools/testing/selftests/bpf/test_cgroup_attach.c similarity index 91% rename from samples/bpf/test_cgrp2_attach2.c rename to tools/testing/selftests/bpf/test_cgroup_attach.c index 0bb6507256b7..2d6d57f50e10 100644 --- a/samples/bpf/test_cgrp2_attach2.c +++ b/tools/testing/selftests/bpf/test_cgroup_attach.c @@ -1,3 +1,5 @@ +// SPDX-License-Identifier: GPL-2.0 + /* eBPF example program: * * - Creates arraymap in kernel with 4 bytes keys and 8 byte values @@ -25,20 +27,27 @@ #include #include #include +#include #include #include -#include "bpf_insn.h" +#include "bpf_util.h" #include "bpf_rlimit.h" #include "cgroup_helpers.h" #define FOO "/foo" #define BAR "/foo/bar/" -#define PING_CMD "ping -c1 -w1 127.0.0.1 > /dev/null" +#define PING_CMD "ping -q -c1 -w1 127.0.0.1 > /dev/null" char bpf_log_buf[BPF_LOG_BUF_SIZE]; +#ifdef DEBUG +#define debug(args...) printf(args) +#else +#define debug(args...) +#endif + static int prog_load(int verdict) { int ret; @@ -89,7 +98,7 @@ static int test_foo_bar(void) goto err; } - printf("Attached DROP prog. This ping in cgroup /foo should fail...\n"); + debug("Attached DROP prog. This ping in cgroup /foo should fail...\n"); assert(system(PING_CMD) != 0); /* Create cgroup /foo/bar, get fd, and join it */ @@ -100,7 +109,7 @@ static int test_foo_bar(void) if (join_cgroup(BAR)) goto err; - printf("Attached DROP prog. This ping in cgroup /foo/bar should fail...\n"); + debug("Attached DROP prog. This ping in cgroup /foo/bar should fail...\n"); assert(system(PING_CMD) != 0); if (bpf_prog_attach(allow_prog, bar, BPF_CGROUP_INET_EGRESS, @@ -109,7 +118,7 @@ static int test_foo_bar(void) goto err; } - printf("Attached PASS prog. This ping in cgroup /foo/bar should pass...\n"); + debug("Attached PASS prog. This ping in cgroup /foo/bar should pass...\n"); assert(system(PING_CMD) == 0); if (bpf_prog_detach(bar, BPF_CGROUP_INET_EGRESS)) { @@ -117,7 +126,7 @@ static int test_foo_bar(void) goto err; } - printf("Detached PASS from /foo/bar while DROP is attached to /foo.\n" + debug("Detached PASS from /foo/bar while DROP is attached to /foo.\n" "This ping in cgroup /foo/bar should fail...\n"); assert(system(PING_CMD) != 0); @@ -132,7 +141,7 @@ static int test_foo_bar(void) goto err; } - printf("Attached PASS from /foo/bar and detached DROP from /foo.\n" + debug("Attached PASS from /foo/bar and detached DROP from /foo.\n" "This ping in cgroup /foo/bar should pass...\n"); assert(system(PING_CMD) == 0); @@ -199,9 +208,9 @@ static int test_foo_bar(void) close(bar); cleanup_cgroup_environment(); if (!rc) - printf("### override:PASS\n"); + printf("#override:PASS\n"); else - printf("### override:FAIL\n"); + printf("#override:FAIL\n"); return rc; } @@ -441,19 +450,26 @@ static int test_multiprog(void) close(cg5); cleanup_cgroup_environment(); if (!rc) - printf("### multi:PASS\n"); + printf("#multi:PASS\n"); else - printf("### multi:FAIL\n"); + printf("#multi:FAIL\n"); return rc; } -int main(int argc, char **argv) +int main(void) { - int rc = 0; + int (*tests[])(void) = {test_foo_bar, test_multiprog}; + int errors = 0; + int i; - rc = test_foo_bar(); - if (rc) - return rc; + for (i = 0; i < ARRAY_SIZE(tests); i++) + if (tests[i]()) + errors++; + + if (errors) + printf("test_cgroup_attach:FAIL\n"); + else + printf("test_cgroup_attach:PASS\n"); - return test_multiprog(); + return errors ? EXIT_FAILURE : EXIT_SUCCESS; } -- 2.20.1