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Revive SUS_MAP feature

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- More details in boot-completed.sh template, ksu_susfs usage and KernelSU Kconfig

Co-authored-by: simonpunk <simonpunk2016@gmail.com>
This commit is contained in:
ShirkNeko
2025-10-18 14:13:31 +08:00
parent 761b5ee687
commit f2274fab27
2 changed files with 29 additions and 0 deletions
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11
kernel/Kconfig
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@@ -217,6 +217,17 @@ config KSU_SUSFS_SUS_SU
the same as the su implementaion of non-gki kernel without kprobe supported.
- Only apps with root access granted by ksu manager are allowed to get root.
config KSU_SUSFS_SUS_MAP
bool "Enable to hide some mmapped real file from different proc maps interfaces"
depends on KSU_SUSFS
default y
help
- Allow hiding mmapped real file from /proc/<pid>/[maps|smaps|smaps_rollup|map_files|mem|pagemap]
- It does NOT support hiding for anon memory.
- It does NOT hide any inline hooks or plt hooks cause by the injected library itself.
- It may not be able to evade detections by apps that implement a good injection detection.
- Effective only on zygote spawned umounted user app process.
endmenu
endmenu

18
kernel/core_hook.c
View File

@@ -1255,6 +1255,24 @@ int ksu_handle_prctl(int option, unsigned long arg2, unsigned long arg3,
return 0;
}
#endif // #ifdef CONFIG_KSU_SUSFS_SUS_SU
#ifdef CONFIG_KSU_SUSFS_SUS_MAP
if (arg2 == CMD_SUSFS_ADD_SUS_MAP) {
int error = 0;
if (!ksu_access_ok((void __user*)arg3, sizeof(struct st_susfs_sus_map))) {
pr_err("susfs: CMD_SUSFS_ADD_SUS_MAP -> arg3 is not accessible\n");
return 0;
}
if (!ksu_access_ok((void __user*)arg5, sizeof(error))) {
pr_err("susfs: CMD_SUSFS_ADD_SUS_MAP -> arg5 is not accessible\n");
return 0;
}
error = susfs_add_sus_map((struct st_susfs_sus_map __user*)arg3);
pr_info("susfs: CMD_SUSFS_ADD_SUS_MAP -> ret: %d\n", error);
if (copy_to_user((void __user*)arg5, &error, sizeof(error)))
pr_info("susfs: copy_to_user() failed\n");
return 0;
}
#endif // #ifdef CONFIG_KSU_SUSFS_SUS_MAP
if (arg2 == CMD_SUSFS_ENABLE_AVC_LOG_SPOOFING) {
int error = 0;
if (arg3 != 0 && arg3 != 1) {