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Message-Id: <20200110105027.257877-11-jakub@cloudflare.com>
Date: Fri, 10 Jan 2020 11:50:26 +0100
From: Jakub Sitnicki <jakub@...udflare.com>
To: bpf@...r.kernel.org
Cc: netdev@...r.kernel.org, kernel-team@...udflare.com,
Eric Dumazet <edumazet@...gle.com>,
John Fastabend <john.fastabend@...il.com>,
Lorenz Bauer <lmb@...udflare.com>,
Martin KaFai Lau <kafai@...com>
Subject: [PATCH bpf-next v2 10/11] selftests/bpf: Extend SK_REUSEPORT tests to cover SOCKMAP
Parametrize the SK_REUSEPORT tests so that the map type for storing sockets
is not hard-coded in the test setup routine.
This, together with careful state cleaning after the tests, let's us run
the test cases once with REUSEPORT_ARRAY and once with SOCKMAP (TCP only),
to have test coverage for the latter as well.
Signed-off-by: Jakub Sitnicki <jakub@...udflare.com>
---
Now a test run looks like so:
bash-5.0# ./test_progs -t reuseport
#39/1 reuseport_sockarray IPv4/TCP LOOPBACK test_err_inner_map:OK
#39/2 reuseport_sockarray IPv4/TCP LOOPBACK test_err_skb_data:OK
#39/3 reuseport_sockarray IPv4/TCP LOOPBACK test_err_sk_select_port:OK
#39/4 reuseport_sockarray IPv4/TCP LOOPBACK test_pass:OK
#39/5 reuseport_sockarray IPv4/TCP LOOPBACK test_syncookie:OK
#39/6 reuseport_sockarray IPv4/TCP LOOPBACK test_pass_on_err:OK
#39/7 reuseport_sockarray IPv4/TCP LOOPBACK test_detach_bpf:OK
#39/8 reuseport_sockarray IPv4/TCP INANY test_err_inner_map:OK
#39/9 reuseport_sockarray IPv4/TCP INANY test_err_skb_data:OK
#39/10 reuseport_sockarray IPv4/TCP INANY test_err_sk_select_port:OK
#39/11 reuseport_sockarray IPv4/TCP INANY test_pass:OK
#39/12 reuseport_sockarray IPv4/TCP INANY test_syncookie:OK
#39/13 reuseport_sockarray IPv4/TCP INANY test_pass_on_err:OK
#39/14 reuseport_sockarray IPv4/TCP INANY test_detach_bpf:OK
#39/15 reuseport_sockarray IPv6/TCP LOOPBACK test_err_inner_map:OK
#39/16 reuseport_sockarray IPv6/TCP LOOPBACK test_err_skb_data:OK
#39/17 reuseport_sockarray IPv6/TCP LOOPBACK test_err_sk_select_port:OK
#39/18 reuseport_sockarray IPv6/TCP LOOPBACK test_pass:OK
#39/19 reuseport_sockarray IPv6/TCP LOOPBACK test_syncookie:OK
#39/20 reuseport_sockarray IPv6/TCP LOOPBACK test_pass_on_err:OK
#39/21 reuseport_sockarray IPv6/TCP LOOPBACK test_detach_bpf:OK
#39/22 reuseport_sockarray IPv6/TCP INANY test_err_inner_map:OK
#39/23 reuseport_sockarray IPv6/TCP INANY test_err_skb_data:OK
#39/24 reuseport_sockarray IPv6/TCP INANY test_err_sk_select_port:OK
#39/25 reuseport_sockarray IPv6/TCP INANY test_pass:OK
#39/26 reuseport_sockarray IPv6/TCP INANY test_syncookie:OK
#39/27 reuseport_sockarray IPv6/TCP INANY test_pass_on_err:OK
#39/28 reuseport_sockarray IPv6/TCP INANY test_detach_bpf:OK
#39/29 reuseport_sockarray IPv4/UDP LOOPBACK test_err_inner_map:OK
#39/30 reuseport_sockarray IPv4/UDP LOOPBACK test_err_skb_data:OK
#39/31 reuseport_sockarray IPv4/UDP LOOPBACK test_err_sk_select_port:OK
#39/32 reuseport_sockarray IPv4/UDP LOOPBACK test_pass:OK
#39/33 reuseport_sockarray IPv4/UDP LOOPBACK test_syncookie:OK
#39/34 reuseport_sockarray IPv4/UDP LOOPBACK test_pass_on_err:OK
#39/35 reuseport_sockarray IPv4/UDP LOOPBACK test_detach_bpf:OK
#39/36 reuseport_sockarray IPv6/UDP LOOPBACK test_err_inner_map:OK
#39/37 reuseport_sockarray IPv6/UDP LOOPBACK test_err_skb_data:OK
#39/38 reuseport_sockarray IPv6/UDP LOOPBACK test_err_sk_select_port:OK
#39/39 reuseport_sockarray IPv6/UDP LOOPBACK test_pass:OK
#39/40 reuseport_sockarray IPv6/UDP LOOPBACK test_syncookie:OK
#39/41 reuseport_sockarray IPv6/UDP LOOPBACK test_pass_on_err:OK
#39/42 reuseport_sockarray IPv6/UDP LOOPBACK test_detach_bpf:OK
#39/43 sockmap IPv4/TCP LOOPBACK test_err_inner_map:OK
#39/44 sockmap IPv4/TCP LOOPBACK test_err_skb_data:OK
#39/45 sockmap IPv4/TCP LOOPBACK test_err_sk_select_port:OK
#39/46 sockmap IPv4/TCP LOOPBACK test_pass:OK
#39/47 sockmap IPv4/TCP LOOPBACK test_syncookie:OK
#39/48 sockmap IPv4/TCP LOOPBACK test_pass_on_err:OK
#39/49 sockmap IPv4/TCP LOOPBACK test_detach_bpf:OK
#39/50 sockmap IPv4/TCP INANY test_err_inner_map:OK
#39/51 sockmap IPv4/TCP INANY test_err_skb_data:OK
#39/52 sockmap IPv4/TCP INANY test_err_sk_select_port:OK
#39/53 sockmap IPv4/TCP INANY test_pass:OK
#39/54 sockmap IPv4/TCP INANY test_syncookie:OK
#39/55 sockmap IPv4/TCP INANY test_pass_on_err:OK
#39/56 sockmap IPv4/TCP INANY test_detach_bpf:OK
#39/57 sockmap IPv6/TCP LOOPBACK test_err_inner_map:OK
#39/58 sockmap IPv6/TCP LOOPBACK test_err_skb_data:OK
#39/59 sockmap IPv6/TCP LOOPBACK test_err_sk_select_port:OK
#39/60 sockmap IPv6/TCP LOOPBACK test_pass:OK
#39/61 sockmap IPv6/TCP LOOPBACK test_syncookie:OK
#39/62 sockmap IPv6/TCP LOOPBACK test_pass_on_err:OK
#39/63 sockmap IPv6/TCP LOOPBACK test_detach_bpf:OK
#39/64 sockmap IPv6/TCP INANY test_err_inner_map:OK
#39/65 sockmap IPv6/TCP INANY test_err_skb_data:OK
#39/66 sockmap IPv6/TCP INANY test_err_sk_select_port:OK
#39/67 sockmap IPv6/TCP INANY test_pass:OK
#39/68 sockmap IPv6/TCP INANY test_syncookie:OK
#39/69 sockmap IPv6/TCP INANY test_pass_on_err:OK
#39/70 sockmap IPv6/TCP INANY test_detach_bpf:OK
#39/71 sockmap IPv4/UDP LOOPBACK test_err_inner_map:OK
#39/72 sockmap IPv4/UDP LOOPBACK test_err_skb_data:OK
#39/73 sockmap IPv4/UDP LOOPBACK test_err_sk_select_port:OK
#39/74 sockmap IPv4/UDP LOOPBACK test_pass:OK
#39/75 sockmap IPv4/UDP LOOPBACK test_syncookie:OK
#39/76 sockmap IPv4/UDP LOOPBACK test_pass_on_err:OK
#39/77 sockmap IPv4/UDP LOOPBACK test_detach_bpf:OK
#39/78 sockmap IPv6/UDP LOOPBACK test_err_inner_map:OK
#39/79 sockmap IPv6/UDP LOOPBACK test_err_skb_data:OK
#39/80 sockmap IPv6/UDP LOOPBACK test_err_sk_select_port:OK
#39/81 sockmap IPv6/UDP LOOPBACK test_pass:OK
#39/82 sockmap IPv6/UDP LOOPBACK test_syncookie:OK
#39/83 sockmap IPv6/UDP LOOPBACK test_pass_on_err:OK
#39/84 sockmap IPv6/UDP LOOPBACK test_detach_bpf:OK
#39 select_reuseport:OK
Summary: 1/84 PASSED, 14 SKIPPED, 0 FAILED
.../bpf/prog_tests/select_reuseport.c | 60 +++++++++++++++----
1 file changed, 50 insertions(+), 10 deletions(-)
diff --git a/tools/testing/selftests/bpf/prog_tests/select_reuseport.c b/tools/testing/selftests/bpf/prog_tests/select_reuseport.c
index 2c37ae7dc214..e7b4abfca2ab 100644
--- a/tools/testing/selftests/bpf/prog_tests/select_reuseport.c
+++ b/tools/testing/selftests/bpf/prog_tests/select_reuseport.c
@@ -36,6 +36,7 @@ static int result_map, tmp_index_ovr_map, linum_map, data_check_map;
static enum result expected_results[NR_RESULTS];
static int sk_fds[REUSEPORT_ARRAY_SIZE];
static int reuseport_array = -1, outer_map = -1;
+static enum bpf_map_type inner_map_type;
static int select_by_skb_data_prog;
static int saved_tcp_syncookie = -1;
static struct bpf_object *obj;
@@ -63,13 +64,15 @@ static union sa46 {
} \
})
-static int create_maps(void)
+static int create_maps(enum bpf_map_type inner_type)
{
struct bpf_create_map_attr attr = {};
+ inner_map_type = inner_type;
+
/* Creating reuseport_array */
attr.name = "reuseport_array";
- attr.map_type = BPF_MAP_TYPE_REUSEPORT_SOCKARRAY;
+ attr.map_type = inner_type;
attr.key_size = sizeof(__u32);
attr.value_size = sizeof(__u32);
attr.max_entries = REUSEPORT_ARRAY_SIZE;
@@ -694,12 +697,34 @@ static void cleanup_per_test(bool no_inner_map)
static void cleanup(void)
{
- if (outer_map != -1)
+ if (outer_map != -1) {
close(outer_map);
- if (reuseport_array != -1)
+ outer_map = -1;
+ }
+
+ if (reuseport_array != -1) {
close(reuseport_array);
- if (obj)
+ reuseport_array = -1;
+ }
+
+ if (obj) {
bpf_object__close(obj);
+ obj = NULL;
+ }
+
+ memset(expected_results, 0, sizeof(expected_results));
+}
+
+static const char *maptype_str(enum bpf_map_type type)
+{
+ switch (type) {
+ case BPF_MAP_TYPE_REUSEPORT_SOCKARRAY:
+ return "reuseport_sockarray";
+ case BPF_MAP_TYPE_SOCKMAP:
+ return "sockmap";
+ default:
+ return "unknown";
+ }
}
static const char *family_str(sa_family_t family)
@@ -747,13 +772,21 @@ static void test_config(int sotype, sa_family_t family, bool inany)
const struct test *t;
for (t = tests; t < tests + ARRAY_SIZE(tests); t++) {
- snprintf(s, sizeof(s), "%s/%s %s %s",
+ snprintf(s, sizeof(s), "%s %s/%s %s %s",
+ maptype_str(inner_map_type),
family_str(family), sotype_str(sotype),
inany ? "INANY" : "LOOPBACK", t->name);
if (!test__start_subtest(s))
continue;
+ if (sotype == SOCK_DGRAM &&
+ inner_map_type == BPF_MAP_TYPE_SOCKMAP) {
+ /* SOCKMAP doesn't support UDP yet */
+ test__skip();
+ continue;
+ }
+
setup_per_test(sotype, family, inany, t->no_inner_map);
t->fn(sotype, family);
cleanup_per_test(t->no_inner_map);
@@ -782,13 +815,20 @@ static void test_all(void)
test_config(c->sotype, c->family, c->inany);
}
-void test_select_reuseport(void)
+void test_map_type(enum bpf_map_type mt)
{
- if (create_maps())
+ if (create_maps(mt))
goto out;
if (prepare_bpf_obj())
goto out;
+ test_all();
+out:
+ cleanup();
+}
+
+void test_select_reuseport(void)
+{
saved_tcp_fo = read_int_sysctl(TCP_FO_SYSCTL);
saved_tcp_syncookie = read_int_sysctl(TCP_SYNCOOKIE_SYSCTL);
if (saved_tcp_syncookie < 0 || saved_tcp_syncookie < 0)
@@ -799,8 +839,8 @@ void test_select_reuseport(void)
if (disable_syncookie())
goto out;
- test_all();
+ test_map_type(BPF_MAP_TYPE_REUSEPORT_SOCKARRAY);
+ test_map_type(BPF_MAP_TYPE_SOCKMAP);
out:
- cleanup();
restore_sysctls();
}
--
2.24.1
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