Commit Graph

48 Commits

Author SHA1 Message Date
topjohnwu
736729f5ef Maintain a list of pre-init mounts
Keep track of everything to unmount
2019-07-16 23:54:52 -07:00
topjohnwu
7ba8202af5 Introduce new root overlay system 2019-07-16 01:08:28 -07:00
topjohnwu
a462435f2f Load custom sepolicy 2019-06-25 21:34:02 -07:00
topjohnwu
003e44fb84 Remove requirement to use early-init daemon
We used to construct /sbin tmpfs overlay in early-init stage after
SELinux is properly initialized. However the way it is implemented
(forking daemon from magiskinit with complicated file waiting triggers)
is extremely complicated and error prone.

This commit moves the construction of the sbin overlay to pre-init
stage. The catch is that since SELinux is not present at that point,
proper selabel has to be reconstructed afterwards. Some additional
SEPolicy rules are added to make sure init can access magisk binaries,
and the secontext relabeling task is assigned to the main Magisk daemon.
2019-04-24 00:13:48 -04:00
topjohnwu
dab32e1599 Use our own device nodes for mirrors 2019-04-08 01:40:04 -04:00
topjohnwu
86789a8694 Add logging in magiskinit 2019-04-04 00:26:16 -04:00
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
df4161ffcc Reboot to recovery when running as recovery 2019-03-30 06:49:29 -04:00
topjohnwu
c0447009db Allow entrypoint for rootfs construction simulation 2019-03-16 04:45:56 -04:00
topjohnwu
f0240b1f06 Support Android Q new split sepolicy setup 2019-03-15 06:17:37 -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
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
6c3896079d Add zygote server notifier 2019-03-05 20:23:27 -05:00
topjohnwu
8032bd0bac Introduce /data mirror
Since we switched to imageless Magisk, module files are directly
stored in /data. However, /data is mounted with nosuid, which also
prevents SELinux typetransition to work (auto transition from one
domain to another when executing files with specific context).
This could cause serious issues when we are replacing system critical
components (e.g. app_process for Xposed), because most of them
are daemons that run in special process domains.

This commit introduced /data mirror. Using similar mirroring technique
we used for system and vendor, we mount another mirror that mounts
/data without nosuid flag. All module files are then mounted from this
mirror mountpoint instead of directly from /data.

Close #1080
2019-02-25 06:13:42 -05:00
topjohnwu
19ee189468 Separate scripting code 2019-02-15 20:45:05 -05:00
topjohnwu
a19c7215d2 Better nice name 2019-02-15 04:31:39 -05:00
topjohnwu
ed4df87b57 Remove imgtool 2019-02-12 02:44:46 -05:00
topjohnwu
1321f097b8 Remove usage of magisk.img
Mounting ext4 images causes tons of issues, such as unmountable with broken F2FS drivers.
Resizing is also very complicated and does not work properly on all devices.
Each step in either measuring free space, resizing, and shrinking the image is a
point of failure, and either step's failure could cause the module system completely broken.

The new method is to directly store modules into /data/adb/modules, and for module installation
on boot /data/adb/modules_update. Several compatibility layers has been done: the new path is
bind mounted to the old path (/sbin/.magisk/img), and the helper functions in util_functions.sh
will now transparently make existing modules install to the new location without any changes.

MagiskHide is also updated to unmount module files stored in this new location.
2019-02-12 02:14:57 -05:00
topjohnwu
71ecbb3af3 Clean/refactor includes 2019-02-10 03:57:51 -05:00
topjohnwu
c8491d008f Move sbin overlay creation to magiskinit 2019-02-09 01:51:46 -05:00
topjohnwu
fdf167db11 Get API level from build.prop 2019-01-20 15:20:34 -05:00
topjohnwu
572e078d87 Fully deprecate <mount_point>/.core folder
Symlinks are preserved for backwards compatibility
2018-11-15 22:55:28 -05:00
topjohnwu
ee4548230b Disable native systemless hosts, add built-in systemless hosts module 2018-11-15 13:57:41 -05:00
topjohnwu
376e7977f0 Deprecate path /sbin/.core, switch to /sbin/.magisk
Symlink is preserved for backwards compatibility
2018-11-15 01:36:03 -05:00
topjohnwu
5743c72cca Minor cleanup 2018-11-08 15:23:36 -05:00
topjohnwu
803c5377a6 Clean init.c 2018-11-07 02:21:15 -05:00
topjohnwu
cda57dd4b4 Fully migrate Magisk to C++ 2018-11-04 04:15:51 -05:00
topjohnwu
27c688252d Store hidelist in magisk database 2018-11-01 13:23:12 -04:00
topjohnwu
5020cd1bbf Small cleanup 2018-09-28 01:25:43 -04:00
topjohnwu
cce636224c Reorganization 2018-09-27 18:26:41 -04:00
topjohnwu
60b3b8ddce Better incremental builds 2018-09-27 03:56:56 -04:00
topjohnwu
1d53335ae5 Dynamic load libselinux 2018-09-27 00:09:59 -04:00
topjohnwu
c38533e0f8 Prevent problematic modules causing device stuck in bootloop
If boot failed after 2 times, it will enable core only mode (which disables all modules)
2018-08-07 04:41:48 +08:00
topjohnwu
d9564bd04c Delay full sepolicy patch loading time 2018-08-02 05:35:01 +08:00
topjohnwu
91818cfa1a Support compiling split cils via magiskpolicy CLI 2018-07-21 05:12:22 +08:00
topjohnwu
1283167595 Maintain our own set of loop devices 2018-07-07 01:32:58 +08:00
topjohnwu
c88dc8795b Single log file 2018-07-02 22:48:26 +08:00
topjohnwu
a8030c39b1 Separate logging into its own daemon 2018-07-02 22:11:28 +08:00
topjohnwu
528634d755 Remove unused code 2018-06-27 06:04:16 +08:00
topjohnwu
7265450e2e Precise free space calculation for magisk.img
1. Introduce new applet: imgtool for better separation from the main program
2. Actually mount the image and check statvfs for free space in the image

This shall eliminate any possible module installation failure from image resizing issues.
2018-06-22 06:18:06 +08:00
topjohnwu
f2064a84ed Move database logic outside of MagiskSU 2018-06-13 04:34:05 +08:00
topjohnwu
34dcf49fbc Update restorecon implementation 2018-06-03 14:43:03 +08:00
topjohnwu
fb491cfdcf Add Protobuf support to resetprop 2018-04-29 01:20:48 +08:00
topjohnwu
9484ec0c17 Massive refactoring
Remove post-fs mode
2018-04-22 02:16:56 +08:00
topjohnwu
87f6018468 Massive sepolicy refactor 2018-04-15 03:18:18 +08:00
topjohnwu
9c6e64f47d Workaround compiler optimization bug 2018-02-21 14:44:24 +08:00
topjohnwu
ebd509d92d Obfuscate socket name to prevent detection
Because why not
2018-02-11 03:59:54 +08:00
topjohnwu
328fc44194 Rename module core to native 2018-01-27 09:11:28 +08:00