/shared2/sys/net/02/config.dat
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This file contains the Wii's Internet connection configuration on any console running System Menu 2.0 or higher (1.0 uses /shared2/sys/net/config.dat). It is composed of an 8-byte header and 3 connection entries of 0x91C each.
typedef struct _netconfig
{
u32 version; // 0x00
u8 header4; // 0x01 When there's at least one valid connection to the Internet.
u8 header5; // 0x00
u8 linkTimeoutSec; // 0x07 Link timeout in seconds, usually 7.
u8 padding; // 0x00
connection_t connection[3];
} netconfig_t;
Where connection
is defined as:
typedef struct _connection
{
/*
* Settings common to both wired and wireless connections
*/
u8 flags; // Defined below.
u8 padding_1[3];
u8 ip[4] // Wii IP Address
u8 netmask[4];
u8 gateway[4];
u8 dns1[4];
u8 dns2[4];
u8 padding_2[2]
u16 mtu; //valid values are 0 and 576-1500 range
u8 padding_3[8]; // 0x00 padding?
proxy_t proxy_settings;
u8 padding_4; //0x00
proxy_t proxy_settings_copy; // Seems to be a duplicate of proxy_settings
u8 padding_5[1297]; //0x00
/*
* Wireless specific settings
*/
u8 ssid[32]; // Access Point name.
u8 padding_6; // 0x00
u8 ssid_length; // length of ssid[] (AP name) in bytes.
u8 padding_7[2]; // 0x00
u8 padding_8; // 0x00
u8 encryption; // (Probably) Encryption. OPN: 0x00, WEP64: 0x01, WEP128: 0x02 WPA-PSK (TKIP): 0x04, WPA2-PSK (AES): 0x05, WPA-PSK (AES): 0x06
u8 padding_9[2]; // 0x00
u8 padding_10; // 0x00
u8 key_length; // length of key[] (encryption key) in bytes. 0x00 for WEP64 and WEP128.
u8 unknown; // 0x00 or 0x01 toogled with a WPA-PSK (TKIP) and with a WEP entered with hex instead of ascii.
u8 padding_11; // 0x00
u8 key[64]; // Encryption key. For WEP, key is stored 4 times (20 bytes for WEP64 and 52 bytes for WEP128) then padded with 0x00.
u8 padding_12[236]; // 0x00
} connection_t;
The u8 flags
used above is defined as:
Connection selected | Use PMTU Recovery | | Internet test passed | | | Use Proxy (1 -> on; 0 -> off) | | | | 1 0 1 0 0 1 1 0 | | | | | | | Interface (0 -> Internal wireless; 1 -> Wired LAN adapter) | | DNS source (0 -> Manual; 1 -> DHCP) | IP source (0 -> Manual; 1 -> DHCP) PPPoE (0 -> No; 1 -> Yes)
Additional structures include:
struct _proxy
{
u8 use_proxy; // 0x00 -> no proxy; 0x01 -> proxy
u8 use_proxy_userandpass // 0x00 -> don't use username and password; 0x01 -> use username and password
u8 padding_1[2] // 0x00
u8 proxy_name[255];
u8 padding_2; // 0x00
u16 proxy_port; // 0-34463 range
u8 proxy_username[32];
u8 padding_3; // 0x00
u8 proxy_password[32];
} __attribute__((__packed__));
typedef struct _proxy proxy_t;
Wired connections follow the same structure, except all related to ssid, encryption and keys is set to 0x00.
Note that all the paddings are a guess. Also, wired information was obtained by modifying Connection 1 ONLY. During these tests Connection 2 and Connection 3 were left blank (set to 0x00).
More research is needed with this file.