Commit Graph

453 Commits

Author SHA1 Message Date
topjohnwu
a385e5cd92 Use wrapper script on system with APEX
Thanks to moving libandroidicu.so to APEX runtime linker namespace,
we need a wrapper to link against libsqlite.so on Q
2019-04-03 17:25:47 -04:00
topjohnwu
cc77a24502 Prevent accidental magiskinit execution
Close #1281
2019-04-01 17:14:18 -04:00
topjohnwu
71a91ac7a7 Boot to recovery if volume up key is held
Forseeing the future that more and more A only system-as-root devices
would have similar bootloader behavior as the latest Samsung devices
(that is, no ramdisk will be loaded into memory when booting from
the boot partition), a solution/workaround has to be made when Magisk
is installed to the recovery partition, making custom recoveries
unable to co-exist with Magisk.

This commit allows magiskinit to read input device events from the
kernel to detect when a user holds volume key up to toggle whether
system-as-root mode is enabled. When system-as-root mode is disabled,
magiskinit will boot with ramdisk instead of cloning rootfs from system,
which in this case will boot to the recovery.
2019-04-01 03:01:05 -04:00
topjohnwu
08a70f033a Add entrypoint to build test
Just for convenience, nothing special here
2019-04-01 02:46:09 -04:00
topjohnwu
1b0c36dbd5 Remove outdated comments 2019-03-31 15:40:55 -04:00
topjohnwu
c577a9525d Remove simple mount mode
This mode is proven to have no difference than normal post-fs-data
module mounting. No reason to keep this code in the sources.
2019-03-31 15:10:01 -04:00
topjohnwu
0149b1368d Several improvements 2019-03-31 06:32:33 -04:00
topjohnwu
cd6bcb97ef Cleanup stuffs 2019-03-31 00:48:22 -04:00
topjohnwu
df4161ffcc Reboot to recovery when running as recovery 2019-03-30 06:49:29 -04:00
topjohnwu
7a133eaf03 Block vaultkeeper and flash_recovery service 2019-03-30 04:13:45 -04:00
topjohnwu
1cd45b53b1 Support recovery based Magisk
Some devices (mainly new Samsung phones we're talking here...) using
A only system-as-root refuse to load ramdisk when booted with boot
no matter what we do. With many A only system-as-root devices, even
though their boot image is kernel only, we can still be able to add
a ramdisk section into the image and force the kernel to use it as
rootfs. However the bootloader on devices like the S10 simply does
not load anything within boot image into memory other than the kernel.
This gives as the only option is to install Magisk on the recovery
partition. This commits adds proper support for these kind of scenarios.
2019-03-30 00:49:48 -04:00
topjohnwu
e784212283 Update tools docs 2019-03-28 04:54:06 -04:00
topjohnwu
d08b1a6639 Remove com.google.android.gms from default list
It seems that even adding this to the list doesn't 100% works on all
devices out there, and some even reported crashes on several Google
services. Disable it for now and do further investigations in the future.
2019-03-27 21:33:04 -04:00
topjohnwu
f5f7fd9132 Add com.android.google gms to default hide list
Close #1235
2019-03-23 04:39:34 -04:00
topjohnwu
8de03eef3f Allow modules to have custom uninstaller script 2019-03-23 03:50:55 -04:00
topjohnwu
8df942f96e Adjust scripting 2019-03-23 03:36:35 -04:00
topjohnwu
9bb2243b56 Switch to skip_mount instead of auto_mount
95%+ of existing modules enables auto mount (obviously).
Switching auto mount to opt-out makes more sense than opt-in as
in previous module format. The file 'auto_mount' will be ignored, and
the file 'skip_mount' will be checked to toggle the mounting behavior.

After scanning through the current Magisk Module Repo modules, no
modules are using custom bind mounting; all modules with auto mount
disabled have empty system folder, which means this change will not
affect any existing module.
2019-03-23 03:05:38 -04:00
topjohnwu
eae1c17738 Remove features before aborting 2019-03-22 02:01:36 -04:00
topjohnwu
ea55532e33 Copy busybox instead of bind mounting 2019-03-22 01:52:13 -04:00
topjohnwu
2a40cb60a9 Behave more sane in extreme conditions 2019-03-22 01:50:33 -04:00
topjohnwu
945f88105f Support system-as-root devices with monolithic sepolicy 2019-03-18 04:54:15 -04:00
topjohnwu
957feca626 Limit sepolicy load to Android Q only
It seems both Android cancers, Samsung and Huawei devices, don't
like preloading sepolicy. For a temporary solution now is to limit
the sepolicy loading to Android Q only.
2019-03-16 17:15:48 -04:00
topjohnwu
c0447009db Allow entrypoint for rootfs construction simulation 2019-03-16 04:45:56 -04:00
topjohnwu
8893cbd64a Modularize MagiskInit 2019-03-15 14:46:30 -04:00
topjohnwu
f0240b1f06 Support Android Q new split sepolicy setup 2019-03-15 06:17:37 -04:00
topjohnwu
e476c18c99 Don't load sepolicy on Huawei devices
Of course, the cancer of Android, Huawei, has to do some f**king weird
modifications to the Linux kernel. Its kernel only accepts 1 single
policy load in its lifetime, a second load will result in ENOMEM error.
Since Huawei devices always use their own stupid ramdisk setup and not
system-as-root, not loading sepolicy is not a concern (for now).
2019-03-14 22:48:23 -04:00
topjohnwu
a1b5185ecb Make sure rootfs file selabels are correct
Android Q init assumes rootfs to always be on EXT4 images, thus
never runs restorecon on the whole root directory. This is an issue
because some folders in rootfs were set with special selabels in
the system partition, but when copying over to initramfs by magiskinit,
these labels will not be preserved.

So the solution is to relabel the files in rootfs with the original
context right? Yes, but rootfs does not allow security xattr to be set
on files before the kernel SELinux initializes with genfs_contexts.
We have to load our sepolicy to the kernel before we clone the root
directory from system partition, which we will also restore the selabel
in the meantime.

Unfortunately this means that for each reboot, the exact same policy
will be loaded to the kernel twice: once in magiskinit so we can label
rootfs properly, and once by the original init, which is part of the
boot procedure. There is no easy way to prevent init from loading
sepolicy, as init will refuse to continue if policy loading has failed.
2019-03-14 22:27:29 -04:00
topjohnwu
da0a72e8b0 Improve builtin selinux implementation 2019-03-14 06:34:22 -04:00
topjohnwu
b7e2e972c7 Support boot_img_hdr_v2 2019-03-13 16:51:22 -04:00
topjohnwu
f2f4649ab0 Don't crash when encounter unexpected XML input 2019-03-12 17:19:29 -04:00
topjohnwu
dce0b6c05a Always detach all child threads before leaving 2019-03-12 16:48:01 -04:00
topjohnwu
a4a661bf34 Small code restructuring 2019-03-11 12:44:50 -04:00
topjohnwu
5111086637 Don't care if child threads were unknown 2019-03-10 01:46:32 -05:00
topjohnwu
20f204810e Use RAII to detach PIDs 2019-03-10 01:14:41 -05:00
topjohnwu
4581354e7a Allow zygote to execve
Allow zygote to execute other programs (such as dex2oat).
This fixes the bug that cause ART framework boot images failed to load
and result to extremely serious performance degradation.

Fix #1195
2019-03-09 22:58:05 -05:00
topjohnwu
faf4d76388 Use large vector<bool> instead of set<pid>
vector<bool> uses bitsets, so we actually only use 12k memory to
store all 3 possible PID info tables. PID checkup will be now become
O(1) instead of O(logn).

P.S. The reason why we don't use unordered_map is because including it
will result in significant binary size increase (might be due to the
complex hash table STL implementation? I really don't know).
2019-03-09 22:28:43 -05:00
topjohnwu
70efddb90f Only use SELinux if necessary in init 2019-03-09 05:30:42 -05:00
topjohnwu
f24a5dfd45 More efficient xml parsing 2019-03-09 04:27:04 -05:00
topjohnwu
081074ad9d Better zygote process detection 2019-03-08 23:53:53 -05:00
topjohnwu
c134fb1939 Remove unnecessary rules 2019-03-08 04:21:23 -05:00
topjohnwu
0204d05316 Remove Zygote notifier
Temporary trigger process scan on packages.xml updates, will find better methods
2019-03-08 03:35:17 -05:00
topjohnwu
c345633d80 Fix build error
Close #1182
2019-03-08 01:01:42 -05:00
topjohnwu
a57a94040e Update some format magics 2019-03-08 00:47:15 -05:00
topjohnwu
1bde78d121 Rename patch_level -> os_patch_level 2019-03-07 21:59:03 -05:00
topjohnwu
bbd014ad1b More saftey checks and improvements 2019-03-07 21:49:47 -05:00
topjohnwu
1287372f5a Support patching header in magiskboot 2019-03-07 21:32:01 -05:00
topjohnwu
d2cb638fcd Use our own function to parse int 2019-03-07 20:31:35 -05:00
topjohnwu
bbe4b69c8d Fix LZ4FEncoder constructor 2019-03-07 19:58:59 -05:00
topjohnwu
7f08c06943 Remove unnecessary '--' from magiskboot actions 2019-03-07 18:07:23 -05:00
topjohnwu
0442d6d509 Only compress kernel and ramdisk if input not compressed 2019-03-07 07:24:20 -05:00