Test checks that listen(2) doesn't wrongfully return -EACCES instead of
-EINVAL when trying to listen on a socket which is set to ULP that doesn't
have clone method in inet_csk(sk)->icsk_ulp_ops (espintcp).
Signed-off-by: Mikhail Ivanov <ivanov.mikhail1@xxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/landlock/config | 1 +
tools/testing/selftests/landlock/net_test.c | 38 +++++++++++++++++++++
2 files changed, 39 insertions(+)
diff --git a/tools/testing/selftests/landlock/config b/tools/testing/selftests/landlock/config
index 0086efaa7b68..014401fe6114 100644
--- a/tools/testing/selftests/landlock/config
+++ b/tools/testing/selftests/landlock/config
@@ -12,3 +12,4 @@ CONFIG_SHMEM=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_XATTR=y
+CONFIG_INET_ESPINTCP=y
\ No newline at end of file
diff --git a/tools/testing/selftests/landlock/net_test.c b/tools/testing/selftests/landlock/net_test.c
index 1a4c4d1cabc2..caf5f38996ed 100644
--- a/tools/testing/selftests/landlock/net_test.c
+++ b/tools/testing/selftests/landlock/net_test.c
@@ -12,6 +12,7 @@
#include <fcntl.h>
#include <linux/landlock.h>
#include <linux/in.h>
+#include <linux/tcp.h>
#include <sched.h>
#include <stdint.h>
#include <string.h>
@@ -1709,6 +1710,43 @@ TEST_F(ipv4_tcp, listen_on_connected)
EXPECT_EQ(0, close(bind_fd));
}
+TEST_F(ipv4_tcp, espintcp_listen)
+{
+ const struct landlock_ruleset_attr ruleset_attr = {
+ .handled_access_net = ACCESS_ALL,
+ };
+ const struct landlock_net_port_attr tcp_denied_listen_p0 = {
+ .allowed_access = ACCESS_ALL & ~LANDLOCK_ACCESS_NET_LISTEN_TCP,
+ .port = self->srv0.port,
+ };
+ int ruleset_fd;
+ int listen_fd;
+
+ ruleset_fd =
+ landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+ ASSERT_LE(0, ruleset_fd);
+
+ /* Deny listen. */
+ ASSERT_EQ(0, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+ &tcp_denied_listen_p0, 0));
+
+ enforce_ruleset(_metadata, ruleset_fd);
+ EXPECT_EQ(0, close(ruleset_fd));
+
+ listen_fd = socket_variant(&self->srv0);
+ ASSERT_LE(0, listen_fd);
+
+ /* Set espintcp ULP. */
+ EXPECT_EQ(0, setsockopt(listen_fd, IPPROTO_TCP, TCP_ULP, "espintcp",
+ sizeof("espintcp")));
+
+ EXPECT_EQ(0, bind_variant(listen_fd, &self->srv0));
+
+ /* Espintcp ULP doesn't have clone method, so listen is denied. */
+ EXPECT_EQ(-EINVAL, listen_variant(listen_fd, backlog));
+ EXPECT_EQ(0, close(listen_fd));
+}
+
FIXTURE(port_specific)
{
struct service_fixture srv0;
--
2.34.1
