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Roger Pueyo Centelles, 30-05-2014 21:03
Ubus¶
The Network Characterization daemon (NCd) uses ubus (the OpenWrt micro bus architecture) to communicate with the Network Characterization user interface and with other daemons and applications. This page documents the ubus namespace of the NC, with the available procedures and several examples.
NCd ubus namespace and procedures summary¶
Local node information¶
Path | Procedure | Signature | Description |
---|---|---|---|
ncd.local | id | { } | Get the unique id of the local node. |
ncd.local | board | { } | Get the system information of the local node (model, CPU, OpenWrt version, hostname, kernel version, etc.) ¹ |
ncd.local | info | { } | Get the system status of the local node (uptime, load, memory, etc.) ² |
ncd.local.position | get | { "nodes" : [ "id_1", "id_2", "id_3" ] } | Get the position (latitude and longitude) of the nodes. |
ncd.local.position | set | { "position" : [ "lat", "lon" ] } | Set the position (latitude and longitude) of the node. |
ncd.node | neighbours | { "node" : "id" } | List all the neighbours of a specified node using its unique id. |
ncd.node.position | get | { "nodes" : [ "id_1", "id_2", "id_3" ] } | Get the position (latitude and longitude) of the nodes. |
ncd.node.position | set | { "position" : [ "lat", "lon" ] } | Set the position (latitude and longitude) of the node. |
ncd.node | info | { "node" : "id" } | Get all the device-specific details of a node (hardware, software, interfaces, etc.) |
¹ It is the same information provided by OpenWrt's system board Ubus call
¹ It is the same information provided by OpenWrt's system info Ubus call
Link-related information¶
Path | Procedure | Signature | Description |
---|---|---|---|
ncd.link | link | { "nodes": [ "id_1", "id_2" ] } | Get the details of the link(s) between nodes id_1 and id_2. |
Usage examples¶
ncd id¶
Request:
ubus call ncd id { }
Response:
{ "id" : "node_id" }
ncd board¶
Request:
ubus call ncd board { }
Response:
{ "kernel": "3.10.36", "hostname": "qMp-6a32", "system": "Qualcomm Atheros QCA9533 rev 1", "model": "TP-Link TL-WR841N\/ND v9", "release": { "distribution": "OpenWrt", "version": "Bleeding Edge", "revision": "r40831", "codename": "barrier_breaker", "target": "ar71xx\/generic", "description": "OpenWrt Barrier Breaker r40831" } }
ncd info¶
Request:
ubus call ncd info { }
Response:
{ "uptime": 9425, "localtime": 1401464813, "load": [ 3264, 10592, 7648 ], "memory": { "total": 29741056, "free": 5259264, "shared": 0, "buffered": 2297856 }, "swap": { "total": 0, "free": 0 } }
ncd.node.neighbours¶
Request:
ncd.node.neighbours { "node" : "id" }
Response:
{ "nodes" : [ "id_1", "id_2", "id_3" ] }
ncd.node.info¶
Request:
ncd.node.info { "node" : "id" }
Response:
{ "nodeinfo": { "id": "node016", "name": "FT-NarrowStreet1616-NSLM5", "hardware": { "model": "Ubiquiti Nanostation M", "type": "Atheros AR7241 rev 1", "cpu": "MIPS 24Kc V7.4", "ram": "29312" }, "software": { "os": { "name": "OpenWrt", "version": 12.09, "codename": "Attitude Adjustment", "date": "2013-09-06", "revision": "r38347" }, "qMp": { "version": "3.0-rc3", "codename": "Clearance", "date": 20140227, "revision": "d94713e", "branch": "master" }, "bmx6": { "revision": "bae36ab0", "version": 12, "branch": "master" }, "ncd": { "revision": "36aaed94", "version": 0.2, "branch": "dev" } }, "interfaces": { "physical": { "wired": { "eth0": { "mac": "DC:9F:DB:4F:A1:F6", "encap": "Ethernet", "mode": "100baseTX", "mtu": 1500 }, "eth1": { "mac": "DE:9F:DB:4F:A1:F6", "encap": "Ethernet", "mode": "down", "mtu": 1500 } }, "wireless": { "radio0": { "type": "mac80211", "mac": "DC:9F:DB:4E:A1:F6", "hwmode": "auto", "channel": 124, "country": "SP", "txpower": 17, "distance": 5000, "ht": [ "SHORT-GI-40", "RX-STBC1", "DSSS_CCK-40" ], "interfaces": { "wlan0": { "device": "radio0", "mode": "adhoc", "bssid": "02:CA:FF:EE:BA:BE", "ssid": "qMp-HWErmitaBellvitge16", "encryption": "open", "network": "lan", "ifname": "wlan0", "stations": { "dc:9f:db:34:17:b6": { "signal": [ -70, -74, -73 ], "avgsignal": [ -70, -74, -73 ], "txbitrate": "60.0 MBit/s MCS 9 40Mhz short GI", "rxbitrate": "81.0 MBit/s MCS 4 40Mhz" } } } } } } }, "virtual": { "lo": { "type": "loopback", "addressing": { "ipv4": [ { "ipaddr": "127.0.0.1", "netmask": "255.0.0.0" } ], "ipv6": [ { "ipaddr6": "::1/128", "scope": "host" } ] } }, "br-lan": { "type": "bridge", "ifname": [ "eth0" ], "addressing": { "ipv4": [ { "ipaddr": "10.1.32.33", "netmask": "255.255.255.224" }, { "ipaddr": "169.254.246.1", "netmask": "255.255.255.248" } ], "ipv6": [ { "scope": "global", "ipaddr6": "fd00:1714:1714:a1f6::1/64" }, { "scope": "link", "ipaddr6": "fe80::de9f:dbff:fe4f:a1f6/64" } ] } }, "br-lan.12": { "type": "vlan", "ifname": [ "eth0" ], "addressing": { "ipv6": [ { "scope": "global", "ipaddr6": "fd66:66:66:8:de9f:dbff:fe4f:a1f6/64" }, { "scope": "global", "ipaddr6": "fd02::dc9f:db4f:a1f6:0:112/128" }, { "scope": "link", "ipaddr6": "fe80::de9f:dbff:fe4f:a1f6/64" } ] } }, "wlan0": { "type": "wireless", "ifname": "radio0", "addressing": { "ipv4": [ { "ipaddr": "169.254.246.1", "netmask": "255.255.255.248" }, { "ipaddr": "10.1.32.33", "netmask": "255.255.255.224" } ], "ipv6": [ { "scope": "link", "ipaddr6": "fe80::de9f:dbff:fe4e:a1f6/64" }, { "scope": "global", "ipaddr6": "fd00:1714:1714:a1f6::1/64" }, { "scope": "link", "ipaddr6": "fe80::de9f:dbff:fe4f:a1f6/64" } ] } }, "wlan0.12": { "type": "vlan", "ifname": "radio0", "addressing": { "ipv6": [ { "scope": "link", "ipaddr6": "fd66:66:66:a:de9f:dbff:fe4e:a1f6/64" }, { "scope": "global", "ipaddr6": "fd02::dc9f:db4f:a1f6:0:212/128" }, { "scope": "link", "ipaddr6": "fe80::de9f:dbff:fe4e:a1f6/64" } ] } }, "bmxtmain": { "type": "tunnel6", "addressing": { "ipv4": [ { "ipaddr": "10.1.32.33", "netmask": "255.255.255.224" } ], "ipv6": [ { "scope": "global", "ipaddr6": "2012:0:0:a1f6::1/128" }, { "scope": "link", "ipaddr6": "fe80::de9f:dbff:fe4f:a1f6/64" } ] } } } } } }
More examples¶
There is an example of the communication process between the CNAd and the CNAui via ubus here.
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