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>
---
Changes since v1:
* Uses 'protocol' fixture instead of 'ipv4_tcp'.
* Adds missing CONFIG_INET_ESP dependency in config.
---
tools/testing/selftests/landlock/config | 4 ++
tools/testing/selftests/landlock/net_test.c | 50 +++++++++++++++++++++
2 files changed, 54 insertions(+)
diff --git a/tools/testing/selftests/landlock/config b/tools/testing/selftests/landlock/config
index 29af19c4e9f9..72de73d1ee4c 100644
--- a/tools/testing/selftests/landlock/config
+++ b/tools/testing/selftests/landlock/config
@@ -1,7 +1,11 @@
CONFIG_CGROUPS=y
CONFIG_CGROUP_SCHED=y
CONFIG_INET=y
+CONFIG_INET_ESPINTCP=y
+CONFIG_INET_ESP=y
CONFIG_IPV6=y
+CONFIG_INET6_ESPINTCP=y
+CONFIG_INET6_ESP=y
CONFIG_KEYS=y
CONFIG_NET=y
CONFIG_NET_NS=y
diff --git a/tools/testing/selftests/landlock/net_test.c b/tools/testing/selftests/landlock/net_test.c
index 92c042349596..6831d8a2e9aa 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>
@@ -1000,6 +1001,55 @@ TEST_F(protocol, listen_on_connected)
EXPECT_EQ(0, close(bind_fd));
}
+TEST_F(protocol, espintcp_listen)
+{
+ int listen_fd;
+ int domain, type;
+
+ if (variant->sandbox == TCP_SANDBOX) {
+ 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;
+
+ 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));
+ }
+
+ domain = variant->prot.domain;
+ type = variant->prot.type;
+
+ if (!((domain == AF_INET || domain == AF_INET6) && type == SOCK_STREAM))
+ SKIP(return, "espintcp is available only for TCP socket");
+
+ 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(ipv4)
{
struct service_fixture srv0, srv1;
--
2.34.1
