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9c441fe4c0
This test intended to verify if SO_BINDTODEVICE option works in bpf_setsockopt. Because we already in the SOL_SOCKET level in this connect bpf prog its safe to verify the sanity in the beginning of the connect_v4_prog by calling the bind_to_device test helper. The testing environment already created by the test_sock_addr.sh script so this test assume that two netdevices already existing in the system: veth pair with names test_sock_addr1 and test_sock_addr2. The test will try to bind the socket to those devices first. Then the test assume there are no netdevice with "nonexistent_dev" name so the bpf_setsockopt will give use ENODEV error. At the end the test remove the device binding from the socket by binding it to an empty name. Signed-off-by: Ferenc Fejes <fejes@inf.elte.hu> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/3f055b8e45c65639c5c73d0b4b6c589e60b86f15.1590871065.git.fejes@inf.elte.hu |
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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.