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36 lines
2.4 KiB
Markdown
36 lines
2.4 KiB
Markdown
# ams_mitm
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This module provides methods to intercept services provided by other system modules. It is further sub-divided according to the service it targets.
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## bpc_mitm
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bpc_mitm enables intercepting requests to power control services. It currently intercepts:
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+ `am` system module (to intercept the Reboot/Power buttons in the overlay menu)
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+ `fatal` system module (to simplify payload reboot logic significantly)
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+ [nx-hbloader](https://github.com/switchbrew/nx-hbloader) (to allow homebrew to take advantage of the feature)
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## fs_mitm
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fs_mitm enables intercepting file system operations. It can deny, delay, replace, or redirect any request made to the file system. It enables LayeredFS to function, which allows for replacement of game assets.
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## hid_mitm
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hid_mitm enables intercepting requests to controller device services. It is currently disabled by default. If enabled, it intercepts:
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+ [nx-hbloader](https://github.com/switchbrew/nx-hbloader) (to help homebrew not need to be recompiled due to a breaking change introduced in the past)
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Note that hid_mitm is currently deprecated and might be removed entirely in the future.
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## ns_mitm
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ns_mitm enables intercepting requests to application control services. It currently intercepts:
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+ Web Applets (to facilitate nx-hbloader web browser launching)
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## set_mitm
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set_mitm enables intercepting requests to the system settings service. It currently intercepts:
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+ `ns` system module and games (to allow for overriding game locales)
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+ All firmware debug settings requests (to allow modification of system settings not directly exposed to the user)
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### Firmware Version
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set_mitm intercepts the `GetFirmwareVersion` command, if the requester is `qlaunch` or `maintenance`.
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It modifies the `display_version` field of the returned system version, causing the version to display
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in settings as `#.#.#|AMS #.#.#|?` with `? = S` when running under system eMMC or `? = E` when running under emulated eMMC. This allows users to easily verify what version of Atmosphère and what eMMC environment they are running.
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### System Settings
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set_mitm intercepts the `GetSettingsItemValueSize` and `GetSettingsItemValue` commands for all requesters.
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It does so in order to enable user configuration of system settings, which are parsed from `/atmosphere/system_settings.ini` on boot. See [here](../../features/configurations.md) for more information on the system settings format.
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