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Merge pull request #1 from LiquidFenrir/fixrestore
Huge rewrite, fix restoring
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| MIT License | ||
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| Copyright (c) 2017 LiquidFenrir | ||
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| Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| of this software and associated documentation files (the "Software"), to deal | ||
| in the Software without restriction, including without limitation the rights | ||
| to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| copies of the Software, and to permit persons to whom the Software is | ||
| furnished to do so, subject to the following conditions: | ||
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| The above copyright notice and this permission notice shall be included in all | ||
| copies or substantial portions of the Software. | ||
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| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| SOFTWARE. |
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| # WifiManager | ||
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| WifiManager is a simple 3ds homebrew meant to help you backup and restore your console's WiFi slots. | ||
| It could prove useful if you travel a lot and need to connect to new wifi networks all the time, or if only 3 slots is really too few for you. | ||
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| ## CRC | ||
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| WifiManager uses `include/checksum.h` and `src/crc16.c` from [libcrc 2.0](https://github.com/lammertb/libcrc/tree/v2.0) by lammertb, licensed under the MIT license, which were modified to remove the functions and data unused by this application. | ||
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| # License | ||
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| WifiManager is licensed under the MIT license, a copy of which can be found in the `LICENSE.txt` file. |
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| #pragma once | ||
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| #include <3ds.h> | ||
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| #include <stdio.h> | ||
| #include <stdlib.h> | ||
| #include <unistd.h> | ||
| #include <string.h> |
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| #include "blocks.h" | ||
| #include "checksum.h" | ||
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| Result getWifiSlot(int selected_slot, wifiBlock * slotData) | ||
| { | ||
| Result ret = CFG_GetConfigInfoBlk8(CFG_WIFI_SLOT_SIZE, CFG_WIFI_BLKID+selected_slot, (u8*)slotData); | ||
| if (ret) printf("CFG_GetConfigInfoBlk8\nresult: 0x%.8lx\n", ret); | ||
| return ret; | ||
| } | ||
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| Result setWifiSlot(int selected_slot, wifiBlock * slotData) | ||
| { | ||
| Result ret = CFG_SetConfigInfoBlk8(CFG_WIFI_SLOT_SIZE, CFG_WIFI_BLKID+selected_slot, (u8*)slotData); | ||
| if (ret) printf("CFG_GetConfigInfoBlk8\nresult: 0x%.8lx\n", ret); | ||
| return ret; | ||
| } | ||
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| void fixSlotCRC(wifiBlock * slotData) | ||
| { | ||
| printf("Previous CRC-16 checksum: %.4X\n", slotData->checksum); | ||
| slotData->checksum = crc_16((u8*)(&(slotData->network)), 0x410); | ||
| printf("New CRC-16 checksum: %.4X\n", slotData->checksum); | ||
| } |
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| #pragma once | ||
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| #include "basic.h" | ||
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| #define CFG_WIFI_BLKID (u32 )0x00080000 | ||
| #define CFG_WIFI_SLOTS 3 | ||
| #define CFG_WIFI_SLOT_SIZE (u32 )0xC00 | ||
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| typedef struct { | ||
| bool exists; | ||
| bool use; | ||
| bool second; | ||
| u8 padding1; | ||
| char SSID[0x20]; | ||
| u8 SSID_length; | ||
| u8 AP_encryption_type; | ||
| u16 padding2; | ||
| char password[0x40]; //plaintext, blank for a network set up with WPS | ||
| u8 passwordPSK[0x20]; | ||
| } networkStruct; | ||
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| typedef struct { | ||
| bool exists; | ||
| u8 padding1; | ||
| u16 checksum; //crc-16 of the next 0x410 bytes, with initval 0: https://github.com/lammertb/libcrc/blob/v2.0/src/crc16.c#L43-L76 | ||
| //if the network is set "normally", 'use' is 1 | ||
| //if the network is set by WPS, 'use' is 0 | ||
| //'second' is 0 | ||
| //if setting multiple networks with WPS in the same session, only the last set will have this. others will have completely 0x00 except for 'exists' | ||
| networkStruct network; | ||
| u8 padding2[0x20]; | ||
| //completely 0x00 if the network was set "normally", otherwise (set by WPS) normal but 'use' and 'second' are 1 | ||
| networkStruct network_WPS; | ||
| u8 padding3[0x20C]; | ||
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| bool auto_obtain_IP; //defaults to 1 | ||
| bool auto_obtain_DNS; //defaults to 1 | ||
| u16 padding4; | ||
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| u8 IP_address[4]; | ||
| u8 gateway_address[4]; | ||
| u8 subnet_mask[4]; | ||
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| u8 primary_DNS[4]; | ||
| u8 secondary_DNS[4]; | ||
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| // if setting multiple networks in the same session, only the last set will have these. others will have completely 0x00 | ||
| u8 unk1[4]; | ||
| u8 IP_to_use[4]; | ||
| u8 MAC_address[6]; | ||
| u8 channel; | ||
| u8 padding5; | ||
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| bool use_proxy; //defaults to 0 | ||
| bool basic_authentication; //defaults to 0 | ||
| u16 port_number; //defaults to 1 | ||
| char proxy_address[0x30]; //including ending nullbyte | ||
| u8 padding6[0x34]; | ||
| char proxy_username[0x20]; //including ending nullbyte | ||
| char proxy_password[0x20]; //including ending nullbyte | ||
| u16 padding7; | ||
| u16 MTU_value; //defaults to 1400, range [576;1500] | ||
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| //nothing beyond this point (0x414), but each slot is 0xC00 big... | ||
| u8 padding8[0x7EC]; | ||
| } wifiBlock; | ||
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| Result getWifiSlot(int selected_slot, wifiBlock * slotData); | ||
| Result setWifiSlot(int selected_slot, wifiBlock * slotData); | ||
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| void fixSlotCRC(wifiBlock * slotData); |
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| /* | ||
| * Library: libcrc | ||
| * File: include/checksum.h | ||
| * Author: Lammert Bies | ||
| * | ||
| * This file is licensed under the MIT License as stated below | ||
| * | ||
| * Copyright (c) 1999-2016 Lammert Bies | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| * of this software and associated documentation files (the "Software"), to deal | ||
| * in the Software without restriction, including without limitation the rights | ||
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| * copies of the Software, and to permit persons to whom the Software is | ||
| * furnished to do so, subject to the following conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be included in all | ||
| * copies or substantial portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| * SOFTWARE. | ||
| * | ||
| * Description | ||
| * ----------- | ||
| * The headerfile include/checksum.h contains the definitions and prototypes | ||
| * for routines that can be used to calculate several kinds of checksums. | ||
| */ | ||
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| #ifndef DEF_LIBCRC_CHECKSUM_H | ||
| #define DEF_LIBCRC_CHECKSUM_H | ||
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| #include <stdint.h> | ||
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| /* | ||
| * #define CRC_POLY_xxxx | ||
| * | ||
| * The constants of the form CRC_POLY_xxxx define the polynomials for some well | ||
| * known CRC calculations. | ||
| */ | ||
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| #define CRC_POLY_16 0xA001 | ||
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| /* | ||
| * #define CRC_START_xxxx | ||
| * | ||
| * The constants of the form CRC_START_xxxx define the values that are used for | ||
| * initialization of a CRC value for common used calculation methods. | ||
| */ | ||
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| #define CRC_START_16 0x0000 | ||
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| /* | ||
| * Prototype list of global functions | ||
| */ | ||
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| uint16_t crc_16( const unsigned char *input_str, size_t num_bytes ); | ||
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| #endif // DEF_LIBCRC_CHECKSUM_H |
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