From 7718a855cd7ae9fc27a2aa1532ee105d52eb7634 Mon Sep 17 00:00:00 2001
From: Jakub Kicinski <jakub.kicinski@netronome.com>
Date: Fri, 24 May 2019 10:34:31 -0700
Subject: [PATCH] selftests/tls: test for lowat overshoot with multiple records
Set SO_RCVLOWAT and test it gets respected when gathering
data from multiple records.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
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 47ddfc154036e..01efbcd2258c9 100644
--- a/tools/testing/selftests/net/tls.c
+++ b/tools/testing/selftests/net/tls.c
@@ -575,6 +575,25 @@ TEST_F(tls, recv_peek_large_buf_mult_recs)
EXPECT_EQ(memcmp(test_str, buf, len), 0);
}
+TEST_F(tls, recv_lowat)
+{
+ char send_mem[10] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
+ char recv_mem[20];
+ int lowat = 8;
+
+ EXPECT_EQ(send(self->fd, send_mem, 10, 0), 10);
+ EXPECT_EQ(send(self->fd, send_mem, 5, 0), 5);
+
+ memset(recv_mem, 0, 20);
+ EXPECT_EQ(setsockopt(self->cfd, SOL_SOCKET, SO_RCVLOWAT,
+ &lowat, sizeof(lowat)), 0);
+ EXPECT_EQ(recv(self->cfd, recv_mem, 1, MSG_WAITALL), 1);
+ EXPECT_EQ(recv(self->cfd, recv_mem + 1, 6, MSG_WAITALL), 6);
+ EXPECT_EQ(recv(self->cfd, recv_mem + 7, 10, 0), 8);
+
+ EXPECT_EQ(memcmp(send_mem, recv_mem, 10), 0);
+ EXPECT_EQ(memcmp(send_mem, recv_mem + 10, 5), 0);
+}
TEST_F(tls, pollin)
{
--
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