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1533 Commits

Author SHA1 Message Date
LoveSy
4ed34cd648 Eliminate unnecessarily copy on magiskinit 
This patch reuses the abused /data tmpfs for magisktmp
 2022-12-23 17:03:16 -08:00
残页
33f5154269
Inject binaries into /system if sbin not accessible 
Some Android 11+ devices have the /sbin partition but not accessible by the global shell (`PATH` doesn't contain `/sbin`). Not only custom ROMs but also some stock ROMs have the same behavior so I believe it is something we need to deal with.
Fix #6427, fix #4309, fix #5728, fix #3593
 2022-12-13 13:54:55 -08:00
topjohnwu
ed37ddd570 Stricter validation 2022-11-22 14:47:37 -08:00
LoveSy
cd5384f13e Fix crashes whenever a zygisk module has ver > 4 2022-11-22 14:47:37 -08:00
LoveSy
11b2ddbad8
Fix zygisk v4 ApiTable abi 
Also refactor some code to let the compiler check the abi

Co-authored-by: topjohnwu <topjohnwu@gmail.com>
 2022-11-22 11:49:31 -08:00
topjohnwu
cf9957ce4d Properly detect SysUI appId 
Fix #6322
 2022-11-01 02:04:50 -07:00
topjohnwu
44643ad7b3 Restrict pointer aliasing 
Close #6354, close #6353
 2022-10-31 16:35:33 -07:00
topjohnwu
616adc22e1 Support Linux < 3.6 2022-10-31 16:00:42 -07:00
残页
a468fd946d Fix #6314 2022-10-11 13:01:34 -07:00
topjohnwu
c3b4678f6e Properly detect SysUI 2022-10-10 21:28:13 -07:00
残页
44cfe94e4d
Always cleanup init LD_PRELOAD hooks 
Fix #6296
 2022-10-03 08:26:33 -07:00
topjohnwu
095d821240 Don't use xopen in readlink 2022-09-25 16:35:28 -07:00
topjohnwu
48f829b76e Minor refactoring 2022-09-21 03:09:46 +02:00
topjohnwu
af99c1b843 Don't crash when nullptr paired with len = 0 2022-09-15 16:56:22 -07:00
topjohnwu
c6646efe68 Move all xwrap to Rust 2022-09-15 01:17:05 -07:00
canyie
9474750bdf Close fd of erroneous daemon socket connections 2022-09-13 04:29:29 -07:00
LoveSy
e86db0bd61 Reset stack guard after fork from Zygote 2022-09-13 04:18:34 -07:00
topjohnwu
a66a3b7438 Make sure logs are always ended with newline 2022-09-09 04:29:50 -07:00
topjohnwu
44029875a6 Add new API exemptFd 2022-09-09 03:27:19 -07:00
topjohnwu
ccf21b0992 Zygisk code refactor 2022-09-07 13:48:20 -07:00
topjohnwu
4e14dab60a Specialize does not need to close logd_fd 2022-09-06 03:01:39 -07:00
topjohnwu
6e299018a4 Preserve logd_fd after specialization 
Also add more comments regarding FD checks
 2022-09-02 01:49:17 -07:00
topjohnwu
555a54ec53 Avoid doing any unmounts for SysUI 2022-08-31 00:15:15 -07:00
topjohnwu
1565bf5442 Make Zygisk API 0BSD 2022-08-30 01:58:40 -07:00
topjohnwu
14b830027b Cleanup zygisk headers 2022-08-30 01:40:14 -07:00
topjohnwu
38325e708e Make private applets hidden 2022-08-27 14:50:28 -07:00
topjohnwu
646260ad6d Fix typo 2022-08-27 05:27:23 -07:00
topjohnwu
d1d26f4481 Fix building individual applet 2022-08-27 05:06:28 -07:00
vvb2060
77d8445bfd Avoid hardcode package name 2022-08-24 03:18:55 -07:00
topjohnwu
a54114f149 Pre-grant permissions if possible 2022-08-23 05:09:50 -07:00
vvb2060
c2f96975ce Pre grant as much as possible 2022-08-23 01:33:10 -07:00
topjohnwu
4737c5117a Update to ONDK r25.2 2022-08-19 16:26:25 -07:00
topjohnwu
9806b38d8e Introduce zygisk loader 
Use a separate library for 1st stage
 2022-08-19 04:49:19 -07:00
topjohnwu
34dd9eb7d6 More Rust 2022-08-19 02:21:52 -07:00
topjohnwu
4d9b7e7114 More Rust 2022-08-15 11:53:51 -07:00
topjohnwu
40aab13601 Make IDE recognize we are targeting Android 2022-08-09 14:09:39 -07:00
topjohnwu
4c0f72f68f Move part of libbase to Rust 2022-08-08 22:53:37 -07:00
残页
1735a713cb
Use ANDROID_DLEXT_FORCE_LOAD to load second stage if possible 
Fix #6095
 2022-08-08 02:43:19 -07:00
残页
52ba6d11bc
Don't let remote errors crash Zygisk 
Fix #6095
 2022-08-07 05:09:46 -07:00
topjohnwu
7357a35f8d Fix build errors 2022-08-07 05:03:18 -07:00
Acetylcholine
aeb7fd7cb3
Fix denylist add_list 
Signed-off-by: ACh Sulfate <xenonhydride@gmail.com>
Co-authored-by: John Wu <topjohnwu@gmail.com>
 2022-08-07 04:48:47 -07:00
topjohnwu
1b4a6850b8 Ensure parent folders exist before extract 2022-08-07 04:06:18 -07:00
canyie
1d0b873950 Fix sepolicy attribute rule parsing 
Fix #6166
 2022-08-07 03:35:50 -07:00
canyie
e8787b5cfd Fix UB when remote process died 
If remote process died, `xreadlink` fails and leaves `buf` uninitialized. Then the daemon calls `str_ends`, creates a temp `std::string_view` with the uninitialized buffer and undefined behavior occurs.
 2022-08-02 12:54:54 -07:00
topjohnwu
b496923cbb Update Cargo.toml 2022-07-24 06:14:49 -07:00
topjohnwu
759d196aad Update cxx.rs 2022-07-24 05:45:23 -07:00
topjohnwu
a7ab8216ce Proper build scripts 2022-07-24 05:39:14 -07:00
topjohnwu
b9e89a1a2d Restructure the native module 
Consolidate all code into the src folder
 2022-07-23 13:51:56 -07:00
vvb2060
c7c9fb9576 Restore context before copy 
fix magiskpolicy context
 2022-07-23 03:57:43 -07:00
vvb2060
8b095de04d Fix app_zygote context 2022-07-23 03:14:44 -07:00
vvb2060
d4b9ef736d Check magisk32 exists 2022-07-23 02:41:36 -07:00
vvb2060
00d3cb0908 magisk_node: check target exists 2022-07-23 02:40:13 -07:00
vvb2060
d35072d4e6 Match app_zygote by context 2022-07-23 02:39:28 -07:00
topjohnwu
4264ae49c0 Format with rustfmt 2022-07-22 03:56:09 -07:00
LoveSy
3906fe75dc Clean up code 2022-07-21 00:52:28 -07:00
topjohnwu
910a36fdc1 Make sepolicy.rules relative if possible 2022-07-20 19:28:38 -07:00
canyie
8423dc8d63 Later check persistent_properties 
`daemon_entry` calls `getprop` which initializes sysprop impl and checks whether we need to load persistent property file. On FDE devices, magiskd starts before /data is actually decrypted, and the check always fails. Thus `persist_getprop("persist.sys.safemode")` will always fail.
 2022-07-20 09:58:20 -07:00
Andrew Gunnerson
1f8c063dc6 Fix booting into recovery with Android 13 GKI kernels 
With Android 13 GKI kernels, the boot partition has no ramdisk, so
Magisk constructs one from scratch. In this scenario, there's no backup
init binary at /.backup/init. For normal boot, magiskinit will symlink
/init -> /system/bin/init if needed. This commit implements the same
for booting into recovery. Before, magiskinit would just exec itself
over and over again because it couldn't restore the backup init.

Signed-off-by: Andrew Gunnerson <chillermillerlong@hotmail.com>
 2022-07-18 13:33:50 -07:00
topjohnwu
70fd03d5fc Rearchitect logging 2022-07-06 01:16:08 -07:00
topjohnwu
2e52875b50 Move all logging into Rust 2022-07-05 21:13:09 -07:00
vvb2060
c2978eb9c3 More log for get_manager 2022-07-01 15:13:38 -07:00
topjohnwu
b4863eb51b Setup logging infra in the Rust side 2022-07-01 04:54:00 -07:00
LoveSy
3817167ba1 Correct ro.crypto.state check 
Fix #6042

Co-authored-by: vvb2060 <vvb2060@gmail.com>
 2022-06-30 19:32:43 -07:00
topjohnwu
26116ac414 Setup preliminary rust infrastructure 2022-06-30 14:50:21 -07:00
LoveSy
3ae7344747
Create /dev on stub cpio 2022-06-22 04:05:50 -07:00
canyie
00247c7901 Fix meizu non-SAR 2SI compatibility again 
Meizu devices using 2SI won't switch root to /system and still on rootfs, and /init is the 1st stage's, which cannot handle the 2nd stage. So we have to manually execute /system/bin/init for the 2nd stage.
 2022-06-19 01:22:18 -07:00
topjohnwu
3c75f474c6 Embed version info in prop format 2022-06-19 00:43:38 -07:00
topjohnwu
db1f5b0397 Reduce files relying on flags.h 2022-06-19 00:43:38 -07:00
vvb2060
b9c93c66f6 Force app version not lower than daemon 2022-06-17 11:53:16 -07:00
topjohnwu
741b679306 Cleanup libbase 2022-06-17 02:36:04 -07:00
LoveSy
4e2ecdb920
Fix env overflow 
Fix #5989
 2022-06-17 02:02:44 -07:00
topjohnwu
9469e79e3c Proper namespacing 
The IDE will get confused when #include is in a namespace
 2022-06-15 02:38:56 -07:00
topjohnwu
db78c20161 Add dtb test command 2022-06-15 02:26:50 -07:00
topjohnwu
1699da1754 Update help message and make behavior consistent 2022-06-14 21:19:17 -07:00
canyie
754e690274 Fix config backup for legacy SAR 2022-06-14 02:57:47 -07:00
vvb2060
42606efe56 Always remove task 2022-06-09 21:02:31 -07:00
vvb2060
cae58c8790 Update hijack bins 2022-06-08 23:30:22 -07:00
topjohnwu
3a39dd4049 Update ramdisk restore implementation 2022-06-08 23:23:39 -07:00
canyie
89ff3c6572 Don't backup ramdisk created by Magisk 
Fix topjohnwu#5938, fix topjohnwu#5944
 2022-06-08 04:53:43 -07:00
topjohnwu
7bf9c74216 Don't skip backup even if original does not exist 
Close #5945, fix #5944
 2022-06-08 03:58:25 -07:00
vvb2060
569e9ad937 Use noHistory attribute for SuRequestActivity 2022-06-06 02:58:52 -07:00
vvb2060
9679874874 Disable repack on android 5.0 
am does not support -p
 2022-06-01 02:05:15 -07:00
topjohnwu
8186f253e8 Fix zygisk code unloading 2022-06-01 01:50:42 -07:00
topjohnwu
d4fe8632ec Support SELinux disabled on debug builds 2022-05-31 22:24:13 -07:00
vvb2060
d7776f6597 Return empty on failure to get context 2022-05-31 18:35:56 -07:00
topjohnwu
e4094c0caa Update build scripts 2022-05-30 03:47:31 -07:00
topjohnwu
2e51fe20a1 Move things to the correct location 2022-05-30 02:09:07 -07:00
topjohnwu
50e2f33d1c More debug indication in UI 
Close #5874
 2022-05-30 01:53:07 -07:00
topjohnwu
5e6eb8dd01 Avoid non-blocking I/O 2022-05-30 01:21:38 -07:00
topjohnwu
bf2f823b8c Prune unused UID at boot 2022-05-29 23:43:22 -07:00
topjohnwu
d0c4226997 Proper package state management 2022-05-29 23:31:57 -07:00
topjohnwu
4ea8bd0229 Fix incorrect use of compare_exchange 2022-05-29 22:19:56 -07:00
vvb2060
d19fcd5e21 Check path when start daemon 2022-05-29 09:08:05 -07:00
vvb2060
0b5f973b31 Print message when getting original app_process fails 2022-05-29 03:46:31 -07:00
topjohnwu
490a784993 Handle zygote restarts 2022-05-28 22:39:44 -07:00
topjohnwu
9c774f96db Use exec for boot_complete 2022-05-28 16:53:04 -07:00
topjohnwu
8dfb30fefe Skip cert check on debug builds 2022-05-24 05:39:16 -07:00
topjohnwu
2a252d13b8 Enforce dyn APK signature in stub app 2022-05-24 05:21:36 -07:00
topjohnwu
083ef803fe Enforce package signature verification 2022-05-20 04:37:58 -07:00
topjohnwu
351f0269ae Install stub if necessary 2022-05-19 22:54:49 -07:00
topjohnwu
a29ae15ff7 Proper get_manager implementation 2022-05-19 02:39:57 -07:00
topjohnwu
34dded3b25 Fix denylist on shared UID apps 2022-05-18 01:59:45 -07:00
topjohnwu
975b1a5e36 Prune unused UIDs from su policies 2022-05-18 01:55:58 -07:00
topjohnwu
c11ccbae2d Extract vbmeta from footer 
Do not scan manually, extract properly from footer like libavb
 2022-05-13 02:49:18 -07:00
topjohnwu
985249c3d0 Support GKIs without ramdisk 
Fix #5819
 2022-05-12 03:04:55 -07:00
topjohnwu
622e09862a Restructure native codebase 2022-05-12 02:03:51 -07:00
残页
7505599ea0 Skip invalid slot_suffix argument 
Many Amlogic devices (e.g. FireTV 2nd gen Cube, Vero 4k+, MI Smart Speaker, etc.) are A-only with androidboot.slot_suffix=normal argument. I think "normal" actually means A-only in this case so just ignore it.

Fix topjohnwu#5806
 2022-05-12 00:37:22 -07:00
topjohnwu
575c417403 More detailed comments and documentation 2022-05-11 21:12:37 -07:00
topjohnwu
9f7a3db8be Move cert extraction to its own file 2022-05-11 21:12:37 -07:00
topjohnwu
029422679c Remove enforcement 
Enforcement will be re-implemented later
 2022-05-11 21:12:37 -07:00
vvb2060
05d6d2b51b Verify app signature 2022-05-11 21:12:37 -07:00
topjohnwu
24603b3cef Update Android Studio 2022-05-09 20:53:47 -07:00
topjohnwu
90545057e9 Always initialize module_list 
Close #5712
 2022-05-06 01:40:19 -07:00
canyie
4f1a1879e5 Misc QoL changes 
- su: Preserve correct capacity to avoid vector reallocation
- su: Properly format code
- daemon: Remove useless `if`
- docs: Remove outdated info
 2022-05-06 01:01:58 -07:00
topjohnwu
134508193d Mock selinuxfs load with regular file 
The hijacked load node does not need to be a FIFO. A FIFO is only
required for blocking init's control flow, which is already achieved
by hijacking the enforce node.
 2022-04-16 07:28:20 -07:00
topjohnwu
3358eab991 Switch to use ONDK 2022-04-15 12:20:18 -07:00
vvb2060
f97866a961 Close stub fd 2022-04-13 23:19:14 -07:00
vvb2060
e1987c42c4 Cleanup SELinux mock files 2022-04-13 23:18:55 -07:00
canyie
18566715e1 Fix MAGISKTMP unmount for CLI 2022-04-10 01:44:16 -07:00
topjohnwu
63a89d9f04 Fix init dmesg logs 2022-04-08 02:38:30 -07:00
canyie
b4099fc5f9 Support sepolicy.unlocked 
Fix topjohnwu#4914
 2022-04-08 02:24:20 -07:00
topjohnwu
ff2513e276 Use LD_PRELOAD to intercept sepolicy on 2SI init 2022-04-08 02:13:31 -07:00
topjohnwu
f24d52436b Deduplicate logic 2022-04-08 00:20:21 -07:00
vvb2060
9de6e8846b Dump stub app to MAGISKTMP/stub.apk 2022-04-07 23:20:42 -07:00
vvb2060
01a1213463 /data/adb/magisk/magisk.apk no longer exists 2022-04-07 23:20:42 -07:00
canyie
448384af06 Guard su request IPC 
Previously `read_string()` calls `std::string.resize()` with a int read from remote process. When I/O error occurs, -1 will be used for resizing the string, `std::bad_alloc` is thrown and since magisk is compiled with `-fno-exceptions`, it will crash the whole daemon process.

May fix topjohnwu#5681
 2022-04-06 21:15:07 -07:00
canyie
3f840f53a0 Check device tree fstab entries are compatible 
Fix topjohnwu#5664
 2022-04-02 04:28:30 -07:00
topjohnwu
704f91545e Reorganize magiskpolicy source code 2022-03-29 22:26:38 -07:00
topjohnwu
efb3239cbd Drop package_name column 2022-03-28 02:05:09 -07:00
topjohnwu
7e7ddeb9e2 Cleanup database migration code 2022-03-28 00:59:16 -07:00
LoveSy
9e8218089b Only dlopen valid fd 2022-03-26 13:48:53 -07:00
topjohnwu
9f1740cc4f Add preliminary shared UID app support 2022-03-25 13:08:13 -07:00
topjohnwu
b1faa5eed4 Update BusyBox 
Close #5620
 2022-03-22 04:18:12 -07:00
LoveSy
7f1f0b9048 Proper support multiple modules adding same dir 2022-03-21 15:53:49 -07:00
LoveSy
183e5f2ecc
Fix xhook cannot hook app_process 
Co-authored-by: canyie <31466456+canyie@users.noreply.github.com>
Co-authored-by: John Wu <topjohnwu@gmail.com>
 2022-03-21 15:52:38 -07:00
topjohnwu
3dc7d77ea9 Patch monolithic sepolicy only if not treble 2022-03-19 20:21:31 -07:00
残页
0f07bbb3e5 Device using split policy can still have monolithic sepolicy file 2022-03-19 12:37:48 -07:00
LoveSy
dd5a3416bf Fix multiple modules adding the same subdirectory 2022-03-19 12:28:54 -07:00
LoveSy
2fb49ad780 Don't always mock selinux enforce as "0" 2022-03-19 12:28:32 -07:00
topjohnwu
876132694d Make /dev always writable 2022-03-18 04:58:37 -07:00
topjohnwu
753808a4ce Also hijack plat_file_contexts if necessary 
Since Android 13, sepolicy are also loaded from APEX modules. Part
of the change is to run restorecon before SELinux is set to enforce.
In order to support this situation, we also hijack plat_file_contexts
if necessary to properly order our operations.

Original idea credits to @yujincheng08, close #5603
 2022-03-18 00:46:34 -07:00
topjohnwu
32cd694ad5 SAR can also have monolithic sepolicy 2022-03-17 22:32:49 -07:00
topjohnwu
f008420891 Make magiskinit not magiskpolicy 2022-03-17 03:36:40 -07:00
topjohnwu
fa8900be65 Use standalone magiskpolicy 2022-03-17 03:15:39 -07:00
LoveSy
69c2f407d6 Log if failed to dlopen a zygisk module 2022-03-17 02:25:31 -07:00
topjohnwu
8dbf93750f Reorganize magiskinit code 2022-03-16 21:41:20 -07:00
topjohnwu
e266a81167 Remove unused code 2022-03-16 21:31:22 -07:00
topjohnwu
e841aab9e7 Add hijack sepolicy support for rootfs devices 
On older Android versions, pre-mounting selinuxfs will lead to errors,
so we have to use a different method to block init's control flow.
Since all devices that falls in this catagory must both:

1. Be Android 8.0 - 9.0
2. Have early mount fstab in its device tree

We can actually use the same FIFO trick, but this time not on selinuxfs,
but on the read-only device tree nodes in sysfs or procfs. By mocking
the fstab/compatible node in the device tree, we can block init when
it attempts to do early mount; at that point, we can then mock selinuxfs
as we normally would, successfully hijack and inject patched sepolicy.
 2022-03-16 20:01:28 -07:00
topjohnwu
49f259065d Introduce new sepolicy injection mechanism 
In the current implementation, Magisk will either have to recreate
all early mount implementation (for legacy SAR and rootfs devices) or
delegate early mount to first stage init (for 2SI devices) to access
required partitions for loading sepolicy. It then has to recreate the
split sepolicy loading implementation in-house, apply patches, then
dump the compiled + patched policies into monolithic format somewhere.
Finally, it patches the original init to force it to load the sepolicy
file we just created.

With the increasing complexity involved in early mount and split
sepolicy (there is even APEX module involved in the future!),
it is about time to rethink Magisk's sepolicy strategy as rebuilding
init's functionality is not scalable and easy to maintain.

In this commit, instead of building sepolicy ourselves, we mock
selinuxfs with FIFO files connected to a pre-init daemon, waiting
for the actual init process to directly write the sepolicy file into
MagiskInit. We then patch the file and load it into the kernel. Some
FIFO tricks has to be used to hijack the original init process's
control flow and prevent race conditions, details are directly in the
comments in code.

At the moment, only system-as-root (read-only root) support is added.
Support for legacy rootfs devices will come with a follow up commit.
 2022-03-16 00:31:55 -07:00
topjohnwu
b10379e700 Cleanup inheritance 2022-03-14 04:22:09 -07:00
topjohnwu
810d27a618 Use /data as tmpfs mount point in 2SI setup 
Design credit to @yujincheng08
Close #5146. Fix #5491, fix #3752

Previously, Magisk changes the mount point from /system to /system_root
by patching fstab to prevent the original init from changing root.
The reason why we want to prevent the original init from switching the
root directory is because it will then be read-only, making patching
and injecting magiskinit into the boot chain difficult.

This commit (ab)uses the fact that the /data folder will never be part
of early mount (because it is handled very late in the boot by vold),
so that we can use it as the mount point of tmpfs to store files.

Some advantages of this method:

- No need to switch root manually
- No need to modify fstab, which significantly improves compatibility
  e.g. avoid hacks for weird devices like those using oplus.fstab,
  and avoid hacking init to bypass fstab in device trees
- Supports skip_mount.cfg
- Support DSU
 2022-03-13 05:06:08 -07:00
topjohnwu
9b60c005c7 Support multiple CPIO concatenated 2022-03-13 04:23:00 -07:00
topjohnwu
563a587882 Initialize local variables 
Fix #5542
 2022-03-09 20:43:42 -08:00
topjohnwu
0c681cdab4 Check null before dereferencing fds_to_ignore 2022-03-03 21:34:53 -08:00
topjohnwu
80dd37ee31 Add missing specialize arguments 2022-03-02 22:01:35 -08:00
topjohnwu
e0b5645064 Revert "Directly use getrandom system call if possible" 
This reverts commit e7c82f20e3d7d7b47221b454508d07aefc14e7c0.
Fix #5516
 2022-03-02 19:50:47 -08:00
topjohnwu
548d70f30c Mount with original option 
Fix #5481, close #5486
 2022-03-01 20:09:59 -08:00
topjohnwu
9968af0785 Move all permission check into daemon.cpp 2022-03-01 03:15:38 -08:00
topjohnwu
be7586137c Reduce C++ wizardry 2022-03-01 03:15:38 -08:00
LoveSy
7999b66c3c Refactor daemon connection 2022-03-01 03:15:38 -08:00
vvb2060
c82a46c1ee Check property before switch mem cgroup 2022-02-28 23:27:23 -08:00
vvb2060
666ab1941f Fix app request fifo wait 2022-02-28 23:26:59 -08:00
topjohnwu
e7c82f20e3 Directly use getrandom system call if possible 2022-02-16 23:57:28 -08:00
LoveSy
afa771a980 Set dlopen reserved size to unlimited 2022-02-16 23:05:17 -08:00
topjohnwu
4c80808997 Check packages.xml inode to trigger app rescan 2022-02-14 02:57:33 -08:00
topjohnwu
d021bca6ef Prevent app_process from setting umask 
Fix #5435
 2022-02-11 01:26:24 -08:00
topjohnwu
55ed6109c1 Use dynamic_bitset.emplace_back() 2022-02-11 01:10:26 -08:00
LoveSy
88e8f2bf83
Proper escape : and \ when binding intent 2022-02-11 01:07:28 -08:00
topjohnwu
605eae21bc Remove unnecessary read/write 
Close #5425
 2022-02-11 00:24:12 -08:00
topjohnwu
93eb277a88 Update error messages 2022-02-11 00:01:51 -08:00
LoveSy
8edf556c9e Fix lz4_lg compress 2022-02-10 23:50:19 -08:00
topjohnwu
7fcb63230f Support lz4_legacy archive with multiple magic 
Multiple lz4_legacy archives can be directly concatenated
 2022-02-10 23:49:17 -08:00
canyie
ebb0ec6c42 Make xmmap() returns nullptr when fails 
In the constructor of mmap_data, there are two possible values when fails: nullptr if fstat() fails, and MAP_FAILED if mmap() fails, but mmap_data treated MAP_FAILED as valid address and crashes.
 2022-02-08 00:49:47 -08:00
LoveSy
188546515c
Fix UID tracking 2022-02-08 00:49:22 -08:00
topjohnwu
c8990b0f68 Rewrite UID tracking 2022-02-07 02:46:47 -08:00
topjohnwu
3145e67feb Update data structure 2022-02-07 00:17:07 -08:00
topjohnwu
a7392ed3d7 Fix MULTIUSER_MODE_OWNER_MANAGED 2022-02-06 06:46:09 -08:00
topjohnwu
a4f97fa151 Fix buffer overflow in connect.cpp 2022-02-06 05:52:11 -08:00
LoveSy
ff7ac582f0
Refactor Zygisk loading 
Co-authored-by: topjohnwu <topjohnwu@gmail.com>
 2022-02-06 00:27:31 -08:00
LoveSy
d2c2456fbe
Don't use getmntent_r from system's libc 
Fix #5354

Co-authored-by: topjohnwu <topjohnwu@gmail.com>
 2022-02-04 23:19:12 -08:00
LoveSy
e9f562a8b7 Fix abuse of fdopendir 
After `fdopendir`, the fd is no longer usable. Should dup and
make use of RAII

Co-authored-by: 残页 <31466456+canyie@users.noreply.github.com>
 2022-02-04 22:54:34 -08:00
残页
79620c97d1
Invalidate Samsung's persist.sys.zygote.early 
Samsung FDE devices with the "persist.sys.zygote.early=true" property will cause Zygote to start before post-fs-data. According to Magisk's document, the post-fs-data phase should always happen before Zygote is started. Features assuming this behavior (like Zygisk and modules that need to control zygote) will not work. To avoid breaking existing modules, we simply invalidate this property to prevent this non-standard behavior from happening

Fix #5299, fix #5328, fix #5308

Co-authored-by: LoveSy <shana@zju.edu.cn>
 2022-02-03 00:46:52 -08:00
topjohnwu
7f65f7d3ca Separate libc.a hacks into its own component 2022-01-31 02:09:08 -08:00
topjohnwu
9fa096c6f4 Add runtime FORTIFY support 
Gingerbread libc.a missing symbols
 2022-01-31 01:49:37 -08:00
LoveSy
70415a396a Do not filter uid == 1000 for process info 2022-01-30 08:25:24 -08:00
topjohnwu
3bf47a6838 Update selinux 2022-01-30 08:18:04 -08:00
topjohnwu
d3d28f0623 Update to NDK r23b 
Credits: @yujincheng08

Close #5193
 2022-01-30 07:11:51 -08:00
topjohnwu
06531f6d06 Add annotations to suppress warnings 2022-01-25 04:16:14 -08:00
topjohnwu
2b303a7e23 Add a missing busybox patch back 
Hopefully, fix #4174
 2022-01-25 03:37:59 -08:00
topjohnwu
45483fde74 Update CLI usages 2022-01-25 02:04:15 -08:00
topjohnwu
2fe3082518 Update busybox 2022-01-24 23:20:36 -08:00
topjohnwu
5a889d28c8 Pick a more reasonable zopfli config 
Close #4980
 2022-01-24 23:07:49 -08:00
topjohnwu
c6dcff0ae7 Minor dynamic_bitset changes 2022-01-24 22:30:19 -08:00
LoveSy
02dd962601 Don't load zygisk module for magisk app 2022-01-24 03:05:12 -08:00
topjohnwu
cbe97cdfde Fix dynamic_bitset implementation 2022-01-23 04:39:00 -08:00
topjohnwu
407dfc7547 Always write 0 to fd 2022-01-23 04:19:07 -08:00
topjohnwu
fbe17dde03 Add flag for unloaded Zygisk modules 2022-01-21 05:37:47 -08:00
John Wu
c826318da4 Update CLI usage text 2022-01-20 01:59:01 -08:00
LoveSy
6582a4abd9 Make magiskpolicy supports multiple --apply 2022-01-20 01:59:01 -08:00
topjohnwu
195d885887 Reduce log spamming 2022-01-20 00:18:46 -08:00
topjohnwu
519bd2f30f Disable AVD hacks by default 2022-01-19 20:28:01 -08:00
topjohnwu
20ef724fad Add new build command avd_patch 2022-01-19 05:12:11 -08:00
vvb2060
f443cbaa2b Revert "Always run non disabled module post-fs-data scripts" 
This reverts commit 4dfb193d10f24fbc96a88c1d13821f471621ba81.
 2022-01-18 04:48:47 -08:00
topjohnwu
bb7a74e4b4 Add Zygisk API getFlags() 2022-01-17 19:54:33 -08:00
topjohnwu
76ddfeb93a Allow modifying denylist without enforcement 2022-01-15 23:46:22 -08:00
LoveSy
c38b826abf Skip overlayfs for post-fs-data mount 
adb remount will introduce overlayfs for /system and /vendor, we should
skip mounting as overlayfs. This also helps us support overlayfs Magisk
later.
 2022-01-14 03:42:37 -08:00
topjohnwu
21d7db0959 Add new Zygisk API to get module dir 2022-01-14 03:10:02 -08:00
LoveSy
b2cd24ed1b Fix an UB when cil compile error 2022-01-11 03:01:27 -08:00
topjohnwu
f4926cb822 Small refactoring 2022-01-02 16:09:03 -08:00
topjohnwu
1e77e0862a Separate fstab finding to its own function 2022-01-02 15:49:12 -08:00
topjohnwu
8c696cb8ca Minor code refactoring 2021-12-28 23:37:06 -08:00
LoveSy
62ef8ade8f
Skip loading Magisk when detecting DSU 
Fix #4402

Co-authored-by: topjohnwu <topjohnwu@gmail.com>
 2021-12-28 21:04:09 -08:00
LoveSy
3d88dd3123 Update dtc to fix a UB 
See https://github.com/dgibson/dtc/pull/65
 2021-12-28 17:18:32 -08:00
残页
880b348ce6 Add an old cgroup path 
Fix topjohnwu#5125
cgroup root path might be mem cgroup instead of acct, especially on low-ram devices.
bc131c3244%5E%21/#F0
 2021-12-28 17:12:15 -08:00
LoveSy
19182ffddf If dt fstab contains error, fallback to default fstab 
See https://cs.android.com/android/platform/superproject/+/master:system/core/init/first_stage_mount.cpp;drc=master;l=155

From the source of `FirstStageMount`, dt fstab can fail gracefully and
if any error occurs it will fall back to default fstab. Magisk now
replaces the default fstab and dt fstab unconditionally, bringing potential
errors to the default fstab and causing init fails to load partitions.
 2021-12-28 17:10:52 -08:00
topjohnwu
f4ed6274a4 Invert vbmeta header patching config 
vbmeta header should not be patched in most cases
 2021-12-14 04:52:25 -08:00
LoveSy
56eb1a1cf9 Load fstab from system/etc 
Caused by this commit: e98afa2687

Fix #5057
 2021-12-14 03:51:55 -08:00
LoveSy
a7c156a9e3
Further fix oplus.fstab support 
* Further fix `oplus.fstab` support

In some oneplus devices, `oplus.fstab` does exists but `init` never
loaded it and those entries in `oplus.fstab` are written directly to
`fstab.qcom`. Previous implementation will introduce duplicate entries
to `fstab.qcom` and brick the device. This commit filters those entries
from `oplus.fstab` that are already in `fstab.qcom` and further filters
duplicated entries in `oplus.fstab` (keep only the last entry).

Fix #5016

* Fix UB

Since we moved entry, we need to explicitly copy its member.
For c++23 we can use `auto{}`.
 2021-12-14 03:40:23 -08:00
残页
b5d80a88d1 Only care about mount namespace isolating 2021-12-14 03:08:55 -08:00
LoveSy
87c2f6ad14
xhook_clear after xhook_refresh 2021-12-14 03:06:57 -08:00
topjohnwu
e097c097fe Rename persist_properties.cpp -> persist.cpp 2021-11-30 01:58:31 -08:00
topjohnwu
1443a5b175 Use mmap_data more widely 2021-11-30 01:50:55 -08:00
topjohnwu
2d82ad93dd Macro -> template 2021-11-29 19:56:37 -08:00
topjohnwu
0a28dfe1e2 AVB blobs expect to be 4096-byte aligned 2021-11-28 13:21:05 -08:00
topjohnwu
228570640e Introduce KEEPVBMETAFLAG env variable 
Close #4447, close #4906, close #4901, close #4964
 2021-11-23 22:14:12 -08:00
topjohnwu
65a79610aa Fix crash and warnings 2021-11-23 18:46:06 -08:00
topjohnwu
24984ea4f2 Optimize stream for full-file writes 2021-11-23 18:08:14 -08:00
topjohnwu
048b2af0fc Improve zopfli encoder 
Write in chunks for CLI compression
 2021-11-23 16:50:08 -08:00
topjohnwu
449989ddd9 Always use zopfli for zImage compression 2021-11-23 14:24:05 -08:00
topjohnwu
01ebe5724a Cleanup zImage parsing code 2021-11-23 13:39:15 -08:00
topjohnwu
95fb230b8c Update to BusyBox 1.34.1 2021-11-22 19:46:52 -08:00
topjohnwu
632971af15 Properly support v4 image headers 2021-11-21 06:07:21 -08:00
topjohnwu
5787aa1078 Stream should always write all bytes 2021-11-21 06:05:59 -08:00
topjohnwu
d8b9265484 Pull out buffer-chunk logic into separate class 2021-11-21 06:05:55 -08:00
topjohnwu
9ea3169ca9 Do not allow modifying page sizes 2021-11-20 22:51:22 -08:00
topjohnwu
aebf2672cd Fix unpacking vendor boot images 2021-11-20 22:44:38 -08:00
topjohnwu
fef44bd24f Allow boot scripts to know Zygisk status 2021-11-20 13:05:15 -08:00
topjohnwu
4dfb193d10 Always run non disabled module post-fs-data scripts 2021-11-16 21:29:13 -08:00
vvb2060
d4ac458d17 Ignore zygisk modules when zygisk is not enabled 2021-11-16 21:14:35 -08:00
topjohnwu
e1b63d7dec Initialize mt19937 statically in function 
This reduces startup time
 2021-11-16 03:20:07 -08:00
topjohnwu
4b5651bd6f Revert logging after pre specialize 2021-11-16 03:12:01 -08:00
topjohnwu
50515d9128 Close unclosed fds from modules 2021-11-16 01:59:45 -08:00
topjohnwu
6935033db5 Prevent dangling pointers 2021-11-12 02:02:05 -08:00
topjohnwu
421277d730 Prevent race conditions in connect_companion 2021-11-12 01:55:55 -08:00
topjohnwu
56988944b5 No need to dup fd 2021-11-12 01:54:48 -08:00
topjohnwu
528601d25a Fix integer overflow and workaround seccomp 
- Use ftruncate64 instead of ftruncate to workaround seccomp
- Cast uint32_t to off64_t before making it negative

Note: Using ftruncate with a modern NDK libc should actually be
fine as the syscall wrapper in bionic will use ftruncate64 internally.
However, since we are using the libc.a from r10e built for Gingerbread,
seccomp wasn't a thing back then, and also the ftruncate64 symbol is
missing; we have to create our own wrapper and call it instead on
32-bit ABIs.

Props to @jnotuo for discovering the overflow bug and seccomp issue

Fix #3703, close #4915
 2021-11-10 03:07:20 -08:00
topjohnwu
b8c1588284 Always unload zygisk after specialize 2021-11-07 13:05:44 -08:00
Chaosmaster
16322ab30c Use full gzip-signature to find gzip-data. 
Fall back to raw image if gzip is not found.

Fixes #4849
 2021-11-03 22:23:21 -07:00
Chaosmaster
5682917356 Speed up zopfli compression 
See #4810 for example
 2021-11-03 22:22:29 -07:00
LoveSy
c91ccc8b4e Fix UB on dtb 
`operator==` of string_view will create a tmp `string_view`.
It's an UB if the `const char *` is a nullptr.
`fdt_get_name` however will return a nullptr.
 2021-11-03 22:21:48 -07:00