Set the initial rec_seq to 0xffffffffffffffff so that it wraps
immediately. The send() call should fail with EBADMSG.
A bug in this code was fixed in commit cfaa80c91f6f ("net/tls: do not
free tls_rec on async operation in bpf_exec_tx_verdict()").
Signed-off-by: Sabrina Dubroca <sd@xxxxxxxxxxxxxxx>
---
tools/testing/selftests/net/tls.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c
index f27a12d2a2c9..1a706d03bb6b 100644
--- a/tools/testing/selftests/net/tls.c
+++ b/tools/testing/selftests/net/tls.c
@@ -266,6 +266,25 @@ TEST_F(tls_basic, bad_cipher)
EXPECT_EQ(setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12, sizeof(struct tls12_crypto_info_aes_gcm_128)), -1);
}
+TEST_F(tls_basic, recseq_wrap)
+{
+ struct tls_crypto_info_keys tls12;
+ char const *test_str = "test_read";
+ int send_len = 10;
+
+ if (self->notls)
+ SKIP(return, "no TLS support");
+
+ tls_crypto_info_init(TLS_1_2_VERSION, TLS_CIPHER_AES_GCM_128, &tls12);
+ memset(&tls12.aes128.rec_seq, 0xff, sizeof(tls12.aes128.rec_seq));
+
+ ASSERT_EQ(setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12, tls12.len), 0);
+ ASSERT_EQ(setsockopt(self->cfd, SOL_TLS, TLS_RX, &tls12, tls12.len), 0);
+
+ EXPECT_EQ(send(self->fd, test_str, send_len, 0), -1);
+ EXPECT_EQ(errno, EBADMSG);
+}
+
FIXTURE(tls)
{
int fd, cfd;
--
2.47.0
