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Message-ID: <018f1633d5471684c65def5fe390de3b15c3d683.1708007371.git.sd@queasysnail.net>
Date: Thu, 15 Feb 2024 17:17:32 +0100
From: Sabrina Dubroca <sd@...asysnail.net>
To: netdev@...r.kernel.org
Cc: Sabrina Dubroca <sd@...asysnail.net>,
Boris Pismenny <borisp@...dia.com>,
John Fastabend <john.fastabend@...il.com>,
Jakub Kicinski <kuba@...nel.org>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Paolo Abeni <pabeni@...hat.com>,
Shuah Khan <shuah@...nel.org>,
Vakul Garg <vakul.garg@....com>,
linux-kselftest@...r.kernel.org
Subject: [PATCH net 4/5] selftests: tls: add test for merging of same-type control messages
Two consecutive control messages of the same type should never be
merged into one large received blob of data.
Signed-off-by: Sabrina Dubroca <sd@...asysnail.net>
---
tools/testing/selftests/net/tls.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c
index 49c84602707f..2714c230a0f9 100644
--- a/tools/testing/selftests/net/tls.c
+++ b/tools/testing/selftests/net/tls.c
@@ -1485,6 +1485,32 @@ TEST_F(tls, control_msg)
EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
}
+TEST_F(tls, control_msg_nomerge)
+{
+ char *rec1 = "1111";
+ char *rec2 = "2222";
+ int send_len = 5;
+ char buf[15];
+
+ if (self->notls)
+ SKIP(return, "no TLS support");
+
+ EXPECT_EQ(tls_send_cmsg(self->fd, 100, rec1, send_len, 0), send_len);
+ EXPECT_EQ(tls_send_cmsg(self->fd, 100, rec2, send_len, 0), send_len);
+
+ EXPECT_EQ(tls_recv_cmsg(_metadata, self->cfd, 100, buf, sizeof(buf), MSG_PEEK), send_len);
+ EXPECT_EQ(memcmp(buf, rec1, send_len), 0);
+
+ EXPECT_EQ(tls_recv_cmsg(_metadata, self->cfd, 100, buf, sizeof(buf), MSG_PEEK), send_len);
+ EXPECT_EQ(memcmp(buf, rec1, send_len), 0);
+
+ EXPECT_EQ(tls_recv_cmsg(_metadata, self->cfd, 100, buf, sizeof(buf), 0), send_len);
+ EXPECT_EQ(memcmp(buf, rec1, send_len), 0);
+
+ EXPECT_EQ(tls_recv_cmsg(_metadata, self->cfd, 100, buf, sizeof(buf), 0), send_len);
+ EXPECT_EQ(memcmp(buf, rec2, send_len), 0);
+}
+
TEST_F(tls, shutdown)
{
char const *test_str = "test_read";
--
2.43.0
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