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03e9b33a0f
While adding a path from the client side to an already established session, it was possible to provide the destination IP to a different server. This is dangerous. This commit adds an extra member to the rtrs_msg_conn_req structure, named first_conn; which is supposed to notify if the connection request is the first for that session or not. On the server side, if a session does not exist but the first_conn received inside the rtrs_msg_conn_req structure is 1, the connection request is failed. This signifies that the connection request is for an already existing session, and since the server did not find one, it is an wrong connection request. Fixes:6a98d71dae("RDMA/rtrs: client: main functionality") Fixes:9cb8374804("RDMA/rtrs: server: main functionality") Link: https://lore.kernel.org/r/20210212134525.103456-3-jinpu.wang@cloud.ionos.com Signed-off-by: Md Haris Iqbal <haris.iqbal@cloud.ionos.com> Reviewed-by: Lutz Pogrell <lutz.pogrell@cloud.ionos.com> Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.