links information according to batman protocol

[javierbrk]

This module provides per interface links information associated with batman protocol basically using batclt nj command as source. The output is similar to the wifi_links_info to make data parsing easy.

This module depends on batctl-default witch is in use by kmod-batman-adv and batman-adv-auto-gw-mode.

This is a sample output of the command shared-state-async get bat_links_info run in one of two librerouters.

{
    "lrprimero": [
        {
            "dst_mac": "02:29:0f:1f:73:aa",
            "last_seen_msecs": 770,
            "tq": 238,
            "src_mac": "02:29:0f:1f:72:3a",
            "iface": "eth1-2_250"
        },
        {
            "dst_mac": "02:db:d6:fc:3a:bd",
            "last_seen_msecs": 510,
            "tq": 155,
            "src_mac": "02:29:0f:1f:72:3a",
            "iface": "eth1-2_250"
        }
    ],
    "lrsegundo": [
        {
            "dst_mac": "02:db:d6:fc:3a:bd",
            "last_seen_msecs": 480,
            "tq": 255,
            "src_mac": "02:29:0f:1f:73:aa",
            "iface": "eth1-2_250"
        },
        {
            "dst_mac": "02:29:0f:1f:72:3a",
            "last_seen_msecs": 750,
            "tq": 254,
            "src_mac": "02:29:0f:1f:73:aa",
            "iface": "eth1-2_250"
        }
    ]
}

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[ilario]

Great!

Just one comment:

$RANDOM will not be available in the upcoming LibreMesh releases. See https://github.com/libremesh/lime-packages/issues/800 and https://github.com/libremesh/lime-packages/pull/991 (this means that the makefile should include a dependency from the replacement package and the uci-default package should include the random-numgen command instead of the $RANDOM)

[javierbrk]

The last push includes the tq parameter for every neighbor

[G10h4ck]

should be ported to shared-state-async before merging

[ilario]

At some point in the future, when we will have BATMAN_V working (the possibility to select it was introduced in https://github.com/libremesh/lime-packages/pull/1004 as @lindnermarek said it is better than BATMAN_IV. But the first tests failed, as reported on https://github.com/libremesh/lime-packages/issues/1059 . The progress on this is being tracked here: https://github.com/libremesh/lime-packages/issues/1009 ), we should check if this works also for BATMAN_V.

-- Inviato dal mio smartstone

[javierbrk]

At some point in the future, when we will have BATMAN_V working (the possibility to select it was introduced in #1004 as @lindnermarek said it is better than BATMAN_IV. But the first tests failed, as reported on #1059 . The progress on this is being tracked here: #1009 ), we should check if this works also for BATMAN_V. … -- Inviato dal mio smartstone

Nice ! this package gets info from batctl, I made a small poc and saw that if the network uses batmanV the json changes to this, instead of "tq" you get "throughput" and the information is directly in the originators table.

{
    "lrprimero": [
        {
            "last_seen_msecs": 430,
            "src_mac": "02:29:0f:1f:72:3a",
            "throughput": 1000000,
            "dst_mac": "02:29:0f:1f:73:aa",
            "iface": "eth1-2_250"
        }
    ],
    "lrsegundo": [
        {
            "last_seen_msecs": 310,
            "src_mac": "02:29:0f:1f:73:aa",
            "throughput": 1000000,
            "dst_mac": "02:29:0f:1f:72:3a",
            "iface": "eth1-2_250"
        }
    ]
}