LDN services: Difference between revisions
| (3 intermediate revisions by the same user not shown) | |||
| Line 734: | Line 734: | ||
This is essentially the same as <code>struct in_addr</code>, except this is little-endian. | This is essentially the same as <code>struct in_addr</code>, except this is little-endian. | ||
This is generally "169.254.XXX.{...}", where XXX is random per created network. | |||
= SubnetMask = | = SubnetMask = | ||
| Line 1,063: | Line 1,065: | ||
| 1 || | | 1 || | ||
|} | |} | ||
= Network protocol = | |||
== ldn == | |||
A beacon and Action frame are broadcasted. The SSID in the beacon is hidden (32-bytes with value 0). | |||
During connection, the Station first sends a probe-request using the [[#NetworkInfo|generated]] SSID from the Action frame. If the probe-response contains the expected data for the [[#SecurityConfig]] type, the Station then proceeds to connect to the AccessPoint. | |||
Once connected, the Station must Authenticate with the AccessPoint, this is custom. The Station sends a frame, and the AccessPoint sends a response. Once Authenticated, the node is added to the [[#NodeInfo]] array in [[#NetworkInfo]], the Station will throw an error if it can't find a matching [[#MacAddress]] for itself here. If the Station does not successfully Authenticate X-seconds after connecting, the AccessPoint disconnects the Station. If the Station fails to Authenticate, the Station itself will disconnect as well. | |||
This does not use DHCP, each node on the network has to manually setup ARP (without sending ARP network requests) with the [[#NodeInfo]] array in [[#NetworkInfo]]. | |||
At this point standard sockets can be used over Data frames. | |||
The custom Ethernet frames have the following structure: | |||
* "Type: IEEE 802a OUI Extended Ethertype (0x88b7)" | |||
* "IEEE802a OUI Extended Ethertype": | |||
** "Organization Code: 00:22:aa (Nintendo Co., Ltd.)" | |||
** "Protocol ID: 0x0102" (Depends on the frame, this ID is used for the Authentication frames) | |||
* The first byte of Data is value 0, then the [[#EthHeader]] follows this. | |||
The Action frames have the following structure: | |||
* "Fixed parameters": | |||
** "Category code: Vendor Specific (127)" | |||
* The Data starts with the [[#ActionHeader]]. | |||
<fill this in> | |||
=== EthHeader === | |||
{| class="wikitable" border="1" | |||
|- | |||
! Offset | |||
! Size | |||
! Description | |||
|- | |||
| 0x0 || 0x1 || Type? Must be 0x1-0xF. | |||
|- | |||
| 0x1 || 0x1 || Low u8 for the size. | |||
|- | |||
| 0x2 || 0x1 || Status. 0 = success, non-zero = error. | |||
|- | |||
| 0x3 || 0x1 || bool flag | |||
|- | |||
| 0x4 || 0x1 || High u8 for the size. | |||
|- | |||
| 0x5 || 0x3 || | |||
|- | |||
| 0x8 || 0x10 || | |||
|- | |||
| 0x18 || 0x10 || | |||
|- | |||
| 0x28 || 0x20 || | |||
|- | |||
| 0x48 || || Frame-specific data, with the above size. | |||
|} | |||
=== ActionHeader === | |||
== lp2p == | |||
<fill this in> | |||
The DHCP server thread can be started by the "nn.lp2p.StateMachine" thread eventually in certain cases. | |||
[[Category:Services]] | [[Category:Services]] | ||