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f809c84de2
net_send() is meant to release the refcount for the SYN buffer once a connection is established, but this assumes that the application uses net_send() for all outgoing buffers. It is possible to setup a connection (and therefore generate an outgoing SYN) by calling net_context_tcp_init(), which has the side-effect of overwriting connection_status . Using such an API would then break the assumption around net_send() reclaiming the refcount of the SYN buf. A test case which exposes the problem: * As a client, setup a connection with an HTTP server. * Send an HTTP request contained in a buf using net_send() * The server responds, and then tears down the connection. * The test client then re-establishes another connection using net_context_tcp_init()--this overwrites connection_status, causing a refcount leak. With this change, we remove the dependency on net_send() being called. Change-Id: I96516cbca3e231ed7fb509a7c03c0ceebf80e03a Signed-off-by: Rohit Grover <rohit.grover@arm.com> |
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