diff options
author | Kuniyuki Iwashima <kuniyu@amazon.com> | 2022-12-26 22:27:53 +0900 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2022-12-30 07:25:53 +0000 |
commit | 2c042e8e54efb2b8e25ed0cb28224e79948dc8ce (patch) | |
tree | c7676d2fa5308b2c1c8968fa3044ebb53af5f85c /tools/testing | |
parent | 936a192f974018b4f6040f6f77b1cc1e75bd8666 (diff) |
tcp: Add selftest for bind() and TIME_WAIT.
bhash2 split the bind() validation logic into wildcard and non-wildcard
cases. Let's add a test to catch future regression.
Before the previous patch:
# ./bind_timewait
TAP version 13
1..2
# Starting 2 tests from 3 test cases.
# RUN bind_timewait.localhost.1 ...
# bind_timewait.c:87:1:Expected ret (0) == -1 (-1)
# 1: Test terminated by assertion
# FAIL bind_timewait.localhost.1
not ok 1 bind_timewait.localhost.1
# RUN bind_timewait.addrany.1 ...
# OK bind_timewait.addrany.1
ok 2 bind_timewait.addrany.1
# FAILED: 1 / 2 tests passed.
# Totals: pass:1 fail:1 xfail:0 xpass:0 skip:0 error:0
After:
# ./bind_timewait
TAP version 13
1..2
# Starting 2 tests from 3 test cases.
# RUN bind_timewait.localhost.1 ...
# OK bind_timewait.localhost.1
ok 1 bind_timewait.localhost.1
# RUN bind_timewait.addrany.1 ...
# OK bind_timewait.addrany.1
ok 2 bind_timewait.addrany.1
# PASSED: 2 / 2 tests passed.
# Totals: pass:2 fail:0 xfail:0 xpass:0 skip:0 error:0
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Acked-by: Joanne Koong <joannelkoong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/testing')
-rw-r--r-- | tools/testing/selftests/net/.gitignore | 1 | ||||
-rw-r--r-- | tools/testing/selftests/net/bind_timewait.c | 92 |
2 files changed, 93 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/.gitignore b/tools/testing/selftests/net/.gitignore index 9cc84114741d..a6911cae368c 100644 --- a/tools/testing/selftests/net/.gitignore +++ b/tools/testing/selftests/net/.gitignore @@ -1,5 +1,6 @@ # SPDX-License-Identifier: GPL-2.0-only bind_bhash +bind_timewait csum cmsg_sender diag_uid diff --git a/tools/testing/selftests/net/bind_timewait.c b/tools/testing/selftests/net/bind_timewait.c new file mode 100644 index 000000000000..cb9fdf51ea59 --- /dev/null +++ b/tools/testing/selftests/net/bind_timewait.c @@ -0,0 +1,92 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright Amazon.com Inc. or its affiliates. */ + +#include <sys/socket.h> +#include <netinet/in.h> + +#include "../kselftest_harness.h" + +FIXTURE(bind_timewait) +{ + struct sockaddr_in addr; + socklen_t addrlen; +}; + +FIXTURE_VARIANT(bind_timewait) +{ + __u32 addr_const; +}; + +FIXTURE_VARIANT_ADD(bind_timewait, localhost) +{ + .addr_const = INADDR_LOOPBACK +}; + +FIXTURE_VARIANT_ADD(bind_timewait, addrany) +{ + .addr_const = INADDR_ANY +}; + +FIXTURE_SETUP(bind_timewait) +{ + self->addr.sin_family = AF_INET; + self->addr.sin_port = 0; + self->addr.sin_addr.s_addr = htonl(variant->addr_const); + self->addrlen = sizeof(self->addr); +} + +FIXTURE_TEARDOWN(bind_timewait) +{ +} + +void create_timewait_socket(struct __test_metadata *_metadata, + FIXTURE_DATA(bind_timewait) *self) +{ + int server_fd, client_fd, child_fd, ret; + struct sockaddr_in addr; + socklen_t addrlen; + + server_fd = socket(AF_INET, SOCK_STREAM, 0); + ASSERT_GT(server_fd, 0); + + ret = bind(server_fd, (struct sockaddr *)&self->addr, self->addrlen); + ASSERT_EQ(ret, 0); + + ret = listen(server_fd, 1); + ASSERT_EQ(ret, 0); + + ret = getsockname(server_fd, (struct sockaddr *)&self->addr, &self->addrlen); + ASSERT_EQ(ret, 0); + + client_fd = socket(AF_INET, SOCK_STREAM, 0); + ASSERT_GT(client_fd, 0); + + ret = connect(client_fd, (struct sockaddr *)&self->addr, self->addrlen); + ASSERT_EQ(ret, 0); + + addrlen = sizeof(addr); + child_fd = accept(server_fd, (struct sockaddr *)&addr, &addrlen); + ASSERT_GT(child_fd, 0); + + close(child_fd); + close(client_fd); + close(server_fd); +} + +TEST_F(bind_timewait, 1) +{ + int fd, ret; + + create_timewait_socket(_metadata, self); + + fd = socket(AF_INET, SOCK_STREAM, 0); + ASSERT_GT(fd, 0); + + ret = bind(fd, (struct sockaddr *)&self->addr, self->addrlen); + ASSERT_EQ(ret, -1); + ASSERT_EQ(errno, EADDRINUSE); + + close(fd); +} + +TEST_HARNESS_MAIN |