From: Jakub Kicinski jakub.kicinski@netronome.com
[ 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 --- tools/testing/selftests/net/tls.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)
--- 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_rec 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) {