From 034ea1305e659ddae44c19ba8449166fec318e2d Mon Sep 17 00:00:00 2001 From: John Fastabend Date: Fri, 12 Jan 2024 16:32:58 -0800 Subject: [PATCH] net: tls, add test to capture error on large splice syzbot found an error with how splice() is handled with a msg greater than 32. This was fixed in previous patch, but lets add a test for it to ensure it continues to work. Signed-off-by: John Fastabend Reviewed-by: Jakub Kicinski Signed-off-by: David S. Miller --- tools/testing/selftests/net/tls.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c index 464853a7f982..7799e042a971 100644 --- a/tools/testing/selftests/net/tls.c +++ b/tools/testing/selftests/net/tls.c @@ -707,6 +707,20 @@ TEST_F(tls, splice_from_pipe) EXPECT_EQ(memcmp(mem_send, mem_recv, send_len), 0); } +TEST_F(tls, splice_more) +{ + unsigned int f = SPLICE_F_NONBLOCK | SPLICE_F_MORE | SPLICE_F_GIFT; + int send_len = TLS_PAYLOAD_MAX_LEN; + char mem_send[TLS_PAYLOAD_MAX_LEN]; + int i, send_pipe = 1; + int p[2]; + + ASSERT_GE(pipe(p), 0); + EXPECT_GE(write(p[1], mem_send, send_len), 0); + for (i = 0; i < 32; i++) + EXPECT_EQ(splice(p[0], NULL, self->fd, NULL, send_pipe, f), 1); +} + TEST_F(tls, splice_from_pipe2) { int send_len = 16000; -- 2.25.1