AFC

最新推荐文章于 2023-08-21 13:30:43 发布

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最新推荐文章于 2023-08-21 13:30:43 发布

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博客介绍了AFC和AFC2服务。AFC即Apple File Conduit，运行于iPhone/iPod，iTunes借此与设备交换文件，受限于特定目录，由afcd处理，基于usbmux协议。AFC2可访问整个文件系统，安装并修改fstab文件实现完全写入被视为基本越狱，不同iOS版本添加AFC2服务方式有别。

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AFC

AFC (Apple File Conduit) is a service that runs on every iPhone / iPod, which iTunes uses to exchange files with the device. It is jailed to the directory /private/var/mobile/Media, which is on the second (non-OS) partition. The AFC service is handled by /usr/libexec/afcd, and runs over the usbmux protocol.

AFC2

AFC2 is an additional AFC service, configured to allow access to the whole filesystem. Installing it and patching the fstab file for full write access is considered a bare-bones jailbreak. Up to iOS 7, the AFC2 service is added by editing the /System/Library/Lockdown/Services.plist file and adding a service that runs under root with access to the rootfilesystem. As of iOS 8, services list with root access permission is hardcoded inside lockdownd. There is a function that the list data inside lockdownd (CFPropertyListCreateWithData involved) and we still could use Mobile Substrate to hook the function to add AFC2 service to the list.