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authorJakub Kicinski <jakub.kicinski@netronome.com>2019-05-24 17:34:31 (GMT)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-06-04 05:59:44 (GMT)
commit2e87b8853672f8a1b1fd9e7c59c2a853a723a94a (patch)
tree563dc494bd3bf5a85fb0c9b1828ec5ac70d9982f
parent2b4435b877d80fc0d048009c3cf289cb55797f4f (diff)
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selftests/tls: test for lowat overshoot with multiple records
[ Upstream commit 7718a855cd7ae9fc27a2aa1532ee105d52eb7634 ] 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--tools/testing/selftests/net/tls.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c
index 47ddfc1..01efbcd 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)
{