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kernel: handle optional backport for selinux_inode

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* For supporting kernel 4.19 with 5.10 bpf backports.

Co-authored-by: rsuntk <rsuntk@yukiprjkt.my.id>
This commit is contained in:
ShirkNeko
2025-09-12 14:37:39 +08:00
parent 840f7a0ff2
commit eebde9be16
9 changed files with 429 additions and 432 deletions
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20
kernel/Makefile
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@@ -105,27 +105,14 @@ else
$(info -- KPM is disabled)
endif
# SELinux 驱动程序检查
# SELinux drivers check
ifeq ($(shell grep -q "current_sid(void)" $(srctree)/security/selinux/include/objsec.h; echo $$?),0)
ccflags-y += -DKSU_COMPAT_HAS_CURRENT_SID
endif
ifeq ($(shell grep -q "struct selinux_state " $(srctree)/security/selinux/include/security.h; echo $$?),0)
ccflags-y += -DKSU_COMPAT_HAS_SELINUX_STATE
endif
# 该功能在 linux 5.0-rc1 中引入
ifeq ($(shell grep -q "get_cred_rcu" $(srctree)/include/linux/cred.h; echo $$?),0)
ccflags-y += -DKSU_COMPAT_HAS_GET_CRED_RCU
else
ifeq ($(shell grep -q "atomic_long_t\s\+usage" $(srctree)/include/linux/cred.h; echo $$?),0)
ccflags-y += -DKSU_COMPAT_ATOMIC_LONG
endif
ifeq ($(shell grep -q "int\s\+non_rcu" $(srctree)/include/linux/cred.h; echo $$?),0)
ccflags-y += -DKSU_COMPAT_HAS_NONCONST_CRED
endif
endif
# Handle optional backports
ifeq ($(shell grep -q "strncpy_from_user_nofault" $(srctree)/include/linux/uaccess.h; echo $$?),0)
ccflags-y += -DKSU_OPTIONAL_STRNCPY
@@ -136,6 +123,10 @@ endif
ifeq ($(shell grep "ssize_t kernel_write" $(srctree)/fs/read_write.c | grep -q "const void" ; echo $$?),0)
ccflags-y += -DKSU_OPTIONAL_KERNEL_WRITE
endif
ifeq ($(shell grep -q "inode_security_struct\s\+\*selinux_inode" $(srctree)/security/selinux/include/objsec.h; echo $$?),0)
$(info -- KernelSU: kernel has selinux_inode.)
ccflags-y += -DKSU_OPTIONAL_SELINUX_INODE
endif
ifeq ($(shell grep -q "int\s\+path_umount" $(srctree)/fs/namespace.c; echo $$?),0)
ccflags-y += -DKSU_HAS_PATH_UMOUNT
ifneq ($(shell grep -Eq "^int path_umount" $(srctree)/fs/internal.h; echo $$?),0)
@@ -143,7 +134,6 @@ $(shell sed -i '/^extern void __init mnt_init/a int path_umount(struct path *pat
$(info -- KernelSU: SusFS: Adding 'int path_umount(struct path *path, int flags);' to $(srctree)/fs/internal.h)
endif
endif
# Checks Samsung UH drivers
ifeq ($(shell grep -q "CONFIG_KDP_CRED" $(srctree)/kernel/cred.c; echo $$?),0)
ccflags-y += -DSAMSUNG_UH_DRIVER_EXIST