86ccca18eb
Run throne_tracker() in kthread instead of blocking the caller.
Prevents full lockup during installation and removing the manager.
By default, first run remains synchronous for compatibility purposes
(FDE, FBEv1, FBEv2)
Features:
- looks and waits for manager UID in /data/system/packages.list
- run track_throne() in a kthread after the first synchronous run
- prevent duplicate thread creation with a single-instance check
- spinlock-on-d_lock based polling adressing possible race conditions.
Race conditions adressed
- single instance kthread lock, smp_mb()
- track_throne_function, packages.list, spinlock-on-d_lock based polling
- is_manager_apk, apk, spinlock-on-d_lock based polling
This is a squash of:
https://github.com/tiann/KernelSU/pull/2632
Original skeleton based on:
`kernelsu: move throne_tracker() to kthread`
`kernelsu: check locking before accessing files and dirs during searching manager`
`kernelsu: look for manager UID in /data/system/packages.list, not /data/system/packages.list.tmp`
0b05e927...8783badd
Co-Authored-By: backslashxx <118538522+backslashxx@users.noreply.github.com>
Co-Authored-By: Yaroslav Zviezda <10716792+acroreiser@users.noreply.github.com>
Signed-off-by: backslashxx <118538522+backslashxx@users.noreply.github.com>
99 lines
2.5 KiB
Plaintext
99 lines
2.5 KiB
Plaintext
menu "KernelSU"
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config KSU
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tristate "KernelSU function support"
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default y
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help
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Enable kernel-level root privileges on Android System.
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To compile as a module, choose M here: the
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module will be called kernelsu.
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config KSU_DEBUG
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bool "KernelSU debug mode"
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depends on KSU
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default n
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help
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Enable KernelSU debug mode.
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config KSU_THRONE_TRACKER_LEGACY
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bool "Use legacy throne tracker (packages.list scanning)"
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depends on KSU
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default n
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help
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Use legacy throne tracker that scans packages.list for app UIDs.
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This is kept for Ultra-Legacy Linux 4.4-3.X kernels which are prone to deadlocks.
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Enable this if default scanning deadlocks/crashes on you.
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config KSU_ALLOWLIST_WORKAROUND
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bool "KernelSU Session init keyring workaround"
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depends on KSU
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default n
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help
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Enable session keyring init workaround for problematic devices.
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Useful for situations where the SU allowlist is not kept after a reboot.
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config KSU_CMDLINE
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bool "Enable KernelSU cmdline"
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depends on KSU && KSU != m
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default n
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help
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Enable a cmdline called kernelsu.enabled
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Value 1 means enabled, value 0 means disabled.
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config KPM
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bool "Enable SukiSU KPM"
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depends on KSU && 64BIT
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default n
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help
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Enabling this option will activate the KPM feature of SukiSU.
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This option is suitable for scenarios where you need to force KPM to be enabled.
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but it may affect system stability.
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select KALLSYMS
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select KALLSYMS_ALL
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config KSU_LSM_SECURITY_HOOKS
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bool "use lsm security hooks"
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depends on KSU
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default y
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help
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Disabling this is mostly only useful for kernel 4.1 and older.
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Make sure to implement manual hooks on security/security.c.
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config KSU_THRONE_TRACKER_ALWAYS_THREADED
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bool "Always run throne_tracker in a kthread"
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default n
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help
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Runs throne_tracker in a separate kthread, including the first run.
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Significantly decreases boot time, but can cause crowning failure
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on some FDE or FBEv1 setups.
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If unsure, say n.
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choice
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prompt "KernelSU hook type"
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depends on KSU
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default KSU_KPROBES_HOOK
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help
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Hook type for KernelSU
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config KSU_KPROBES_HOOK
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bool "Hook KernelSU with Kprobes"
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depends on KPROBES
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help
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If enabled, Hook required KernelSU syscalls with Kernel-probe.
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config KSU_TRACEPOINT_HOOK
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bool "Hook KernelSU with Tracepoint"
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depends on TRACEPOINTS
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help
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If enabled, Hook required KernelSU syscalls with Tracepoint.
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config KSU_MANUAL_HOOK
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bool "Hook KernelSU manually"
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depends on KSU != m
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help
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If enabled, Hook required KernelSU syscalls with manually-patched function.
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endchoice
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endmenu
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