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net: tls, add test to capture error on large splice

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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 <john.fastabend@gmail.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
John Fastabend 2024-01-12 16:32:58 -08:00 committed by David S. Miller
parent dc9dfc8dc6
commit 034ea1305e
1 changed files with 14 additions and 0 deletions
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14
tools/testing/selftests/net/tls.c
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@ -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;