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>
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@ -575,6 +575,25 @@ TEST_F(tls, recv_peek_large_buf_mult_recs)
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EXPECT_EQ(memcmp(test_str, buf, len), 0);
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}
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TEST_F(tls, recv_lowat)
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{
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char send_mem[10] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
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char recv_mem[20];
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int lowat = 8;
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EXPECT_EQ(send(self->fd, send_mem, 10, 0), 10);
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EXPECT_EQ(send(self->fd, send_mem, 5, 0), 5);
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memset(recv_mem, 0, 20);
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EXPECT_EQ(setsockopt(self->cfd, SOL_SOCKET, SO_RCVLOWAT,
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&lowat, sizeof(lowat)), 0);
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EXPECT_EQ(recv(self->cfd, recv_mem, 1, MSG_WAITALL), 1);
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EXPECT_EQ(recv(self->cfd, recv_mem + 1, 6, MSG_WAITALL), 6);
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EXPECT_EQ(recv(self->cfd, recv_mem + 7, 10, 0), 8);
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EXPECT_EQ(memcmp(send_mem, recv_mem, 10), 0);
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EXPECT_EQ(memcmp(send_mem, recv_mem + 10, 5), 0);
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}
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TEST_F(tls, pollin)
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{
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