Re: [PATCH] README: Adding some documentation for multicast

[Jiri Pirko]

applied

Thu, May 03, 2012 at 11:28:32AM CEST, rpazdera(a)redhat.com wrote:
> From: Radek Pazdera <rpazdera(a)redhat.com&gt;
>
> New readme file for multicast test tools that documents
> behavior of various setups and what can be tested with them.
>
> Signed-off-by: Radek Pazdera <rpazdera(a)redhat.com&gt;
> ---
>  test_tools/multicast/README |  120 +++++++++++++++++++++++++++++++++++++++++++
>  1 files changed, 120 insertions(+), 0 deletions(-)
>  create mode 100644 test_tools/multicast/README
>
> diff --git a/test_tools/multicast/README b/test_tools/multicast/README
> new file mode 100644
> index 0000000..b067721
> --- /dev/null
> +++ b/test_tools/multicast/README
> @@ -0,0 +1,120 @@
> +Multicast Testing Tools
> +=======================
> +
> +This is a set of test setups and scripts for multicast testing in Linux kernel.
> +There are generaly four types of ready-to-use testing tools included in this
> +package and also a library you can use to build your own setup for testing.
> +
> +
> +Structure
> +---------
> +
> +The structure is following:
> +
> +*   **client/**  - contains client setups (generaly programs that send data)
> +*   **offline/** - here goes all tests, that are performed offline
> +*   **scripts/** - helper scripts in bash/python
> +*   **server/**  - setups of servers (programs that receive)
> +*   *igmp\_utils.h* - sending IGMP packets over IPPROTO\_RAW socket
> +*   *multicast\_utils.h* - sending/receiving IPv4 multicast
> +*   *parameters.h* - parsing options
> +*   *sockopt\_utils.h* - offline conformance testing of socket options
> +
> +
> +Setups
> +------
> +
> +### Parameters ###
> +
> +Execution of each test setup can be controled via a set of options. These
> +parameters are passed to the setup through CLI arguments. There are long and
> +short version for each option.
> +
> +
> +### Test Results ###
> +
> +Each test setup returns results in the following format for easy parsing:
> +
> +    name="value"
> +    packets_transfered=5
> +
> +Double-quotes around the value are optional.
> +
> +
> +### Clients ###
> +
> +*   **recv\_block\_source** - Join multicast group for some time, start blocking
> +    the sender with `IP_BLOCK_SOURCE`. Finaly unblock the source using
> +    `IP_UNBLOCK_SOURCE`.
> +
> +    Returns `packets_received` - number of packets, that correctly arrived and
> +    `packets_received_while_blocking` - number of packets received while the
> +    source was blocked (which should always be zero).
> +
> +*   **recv\_membership** - Join multicast group and leave in the middle of
> +    ongoing communication.
> +
> +    Returns `packets_received` -- number of correctly received packets and
> +    `packets_received_after_drop` -- number of packets received after leaving
> +    the multicast group.
> +
> +*   **recv\_simple** - Simple setup that joins multicast group and listens
> +    for data.
> +
> +    Returns `packets_received`.
> +
> +*   **recv\_source\_membership** - Same as the **recv\_membership** setup, only
> +    for source specific multicast.
> +
> +
> +### Servers ###
> +
> +*   **send\_simple** - This setup allows you to emitt multicast packets
> +    with specific parameters to some multicast group. Run with -h option
> +    in order to find out all controlalble parameters of this setup.
> +
> +    Returns `packets_sent` - number of packets passed to network.
> +
> +*   **send\_igmp\_query** - This setup is able to send IP datagrams with IGMP
> +    queries of all versions. It uses RAW sockets so it must be run with
> +    super-user priviledges.
> +
> +    Returns nothing.
> +
> +
> +### Offline ###
> +
> +*   **sockopt\_block\_source** - `IP_BLOCK_SOURCE` and `IP_UNBLOCK_SOURCE`
> +    offline conformance tests
> +
> +    Returns list of passed tests.
> +
> +*   **sockopt\_if** - `IP_MULTICAST_IF` conformance test
> +
> +    Returns list of passed tests.
> +
> +*   **sockopt\_loop** - `IP_MULTICAST_LOOP` conformance test
> +
> +    Returns list of passed tests.
> +
> +*   **sockopt\_membership** - `IP_ADD_MEMBERSHIP` and `IP_DROP_MEMBERSHIP`
> +    conformance test
> +
> +    Returns list of passed tests.
> +
> +*   **sockopt\_source\_membership** - `IP_ADD_SOURCE_MEMBERSHIP` and
> +    `IP_DROP_SOURCE_MEMBERSHIP` conformance test
> +
> +    Returns list of passed tests.
> +
> +*   **sockopt\_ttl** - `IP_MULTICAST_TTL` conformance test
> +
> +    Returns list of passed tests.
> +
> +
> +Author
> +------
> +
> +Radek Pazdera ([[e-mail]](mailto:[e-mail]))
> +
> +This was developed as part of LNST framework.
> -- 
> 1.7.7.6
>
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