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Misc QoL changes

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- su: Preserve correct capacity to avoid vector reallocation
- su: Properly format code
- daemon: Remove useless `if`
- docs: Remove outdated info
This commit is contained in:
canyie
2022-04-29 23:44:02 +08:00
committed by John Wu
parent e88eed9a8d
commit 4f1a1879e5
6 changed files with 11 additions and 15 deletions
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7
docs/details.md
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@@ -90,11 +90,10 @@ DATABIN=$SECURE_DIR/magisk
`magiskinit` will replace `init` as the first program to run.
- Early mount required partitions. On legacy system-as-root devices, we switch root to system; on 2SI devices, we patch fstab and execute the original `init` to mount partitions for us.
- Load sepolicy either from `/sepolicy`, precompiled sepolicy in vendor, or compile split sepolicy
- Patch sepolicy rules and dump to `/sepolicy` or `/sbin/.se` or `/dev/.se`
- Patch `init` or `libselinux.so` to force the system to load the patched policies
- Early mount required partitions. On legacy system-as-root devices, we switch root to system; on 2SI devices, we patch the original `init` to redirect the 2nd stage init file to magiskinit and execute it to mount partitions for us.
- Inject magisk services into `init.rc`
- On devices using monolithic policy, load sepolicy from `/sepolicy`; otherwise we hijack nodes in selinuxfs with FIFO, set `LD_PRELOAD` to hook `security_load_policy` and assist hijacking on 2SI devices, and start a daemon to wait until init tries to load sepolicy.
- Patch sepolicy rules. If we are using "hijack" method, load patched sepolicy into kernel, unblock init and exit daemon
- Execute the original `init` to continue the boot process
### post-fs-data

4
docs/tools.md
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@@ -1,6 +1,6 @@
# Magisk Tools
Magisk comes with a huge collections of tools for installation, daemons, and utilities for developers. This documentation covers the 3 binaries and all included applets. The binaries and applets are shown below:
Magisk comes with a huge collections of tools for installation, daemons, and utilities for developers. This documentation covers the 4 binaries and all included applets. The binaries and applets are shown below:
```
magiskboot /* binary */
@@ -12,8 +12,6 @@ resetprop -> magisk
su -> magisk
```
Note: The Magisk zip you download only contains `magiskboot`, `magiskinit`, and `magiskinit64`. The binary `magisk` is compressed and embedded into `magiskinit(64)`. Push `magiskinit(64)` to your device and run `./magiskinit(64) -x magisk <path>` to extract `magisk` out of the binary.
### magiskboot
A tool to unpack / repack boot images, parse / patch / extract cpio, patch dtb, hex patch binaries, and compress / decompress files with multiple algorithms.