Remove KSU-related Makefiles, removing function checks and definitions that are no longer needed.
This commit is contained in:
ShirkNeko
174
kernel/Makefile
174
kernel/Makefile
@@ -8,14 +8,18 @@ kernelsu-objs += ksud.o
|
||||
kernelsu-objs += embed_ksud.o
|
||||
kernelsu-objs += kernel_compat.o
|
||||
|
||||
kernelsu-objs += selinux/
|
||||
kernelsu-objs += selinux/selinux.o
|
||||
kernelsu-objs += selinux/sepolicy.o
|
||||
kernelsu-objs += selinux/rules.o
|
||||
ccflags-y += -Wno-implicit-function-declaration -Wno-strict-prototypes -Wno-int-conversion
|
||||
ccflags-y += -Wno-declaration-after-statement -Wno-unused-function
|
||||
ccflags-y += -I$(srctree)/security/selinux -I$(srctree)/security/selinux/include
|
||||
ccflags-y += -I$(objtree)/security/selinux -include $(srctree)/include/uapi/asm-generic/errno.h
|
||||
|
||||
obj-$(CONFIG_KPM) += kpm/
|
||||
|
||||
obj-$(CONFIG_KSU) += kernelsu.o
|
||||
|
||||
obj-y += check/
|
||||
|
||||
# Do checks before compile
|
||||
ifneq ($(shell grep -q "int path_umount" $(srctree)/fs/namespace.c; echo $$?),0)
|
||||
$(error -- Backporting path_umount is mandatory !! Read: https://kernelsu.org/guide/how-to-integrate-for-non-gki.html#how-to-backport-path-umount)
|
||||
@@ -84,6 +88,170 @@ endif
|
||||
ccflags-y += -DEXPECTED_SIZE=$(KSU_EXPECTED_SIZE)
|
||||
ccflags-y += -DEXPECTED_HASH=\"$(KSU_EXPECTED_HASH)\"
|
||||
|
||||
# SELinux 驱动程序检查
|
||||
ifeq ($(shell grep -q " current_sid(void)" $(srctree)/security/selinux/include/objsec.h; echo $$?),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
|
||||
|
||||
# 处理可选的backport
|
||||
ifeq ($(shell grep -q "strncpy_from_user_nofault" $(srctree)/include/linux/uaccess.h; echo $$?),0)
|
||||
ccflags-y += -DKSU_STRNCPY_FROM_USER_NOFAULT
|
||||
endif
|
||||
|
||||
ifeq ($(shell grep -q "ssize_t kernel_read" $(srctree)/fs/read_write.c; echo $$?),0)
|
||||
ccflags-y += -DKSU_KERNEL_READ
|
||||
endif
|
||||
|
||||
ifeq ($(shell grep "ssize_t kernel_write" $(srctree)/fs/read_write.c | grep -q "const void" ; echo $$?),0)
|
||||
ccflags-y += -DKSU_KERNEL_WRITE
|
||||
endif
|
||||
|
||||
# 检查三星 UH 驱动程序
|
||||
ifeq ($(shell grep -q "CONFIG_KDP_CRED" $(srctree)/kernel/cred.c; echo $$?),0)
|
||||
ccflags-y += -DSAMSUNG_UH_DRIVER_EXIST
|
||||
endif
|
||||
|
||||
|
||||
BackPort := $(strip $(shell \
|
||||
if [ "$(VERSION)" -ge "5" -a "$(PATCHLEVEL)" -ge "10" ]; then \
|
||||
echo FALSE; \
|
||||
else \
|
||||
echo TRUE; \
|
||||
fi \
|
||||
))
|
||||
ifeq ($(BackPort),FALSE)
|
||||
define check_file_exists
|
||||
if [ ! -f $(1) ]; then \
|
||||
echo "-- SukiSU: Error: File '$(1)' does not exist"; \
|
||||
exit 1; \
|
||||
fi
|
||||
endef
|
||||
|
||||
define check_function_exists
|
||||
$(call check_file_exists, $(1))
|
||||
grep -Pq '^\s*static\s+inline\s+const\s+struct\s+cred\s+\*\s+get_cred_rcu\s*\(' $(1)
|
||||
endef
|
||||
|
||||
define check_code_block
|
||||
$(call check_file_exists, $(1))
|
||||
grep -Fq "$(2)" $(1)
|
||||
endef
|
||||
|
||||
|
||||
define insert_code_block
|
||||
$(call check_file_exists, $(1))
|
||||
$(call backup_file, $(1))
|
||||
if ! $(call check_code_block, $(1), $(2)); then \
|
||||
echo "-- SukiSU: Inserting code block into $(1)"; \
|
||||
sed -i '/^$(3)/i $(2)' $(1); \
|
||||
else \
|
||||
echo "-- SukiSU: Code block already exists in $(1), skipping"; \
|
||||
fi
|
||||
endef
|
||||
|
||||
# 检测原子函数
|
||||
ifeq ($(shell grep -E 'atomic_inc_not_zero|atomic_long_inc_not_zero' $(srctree)/kernel/cred.c | head -1 | cut -d' ' -f1), atomic_inc_not_zero)
|
||||
ATOMIC_INC_FUNC := atomic_inc_not_zero
|
||||
else ifeq ($(shell grep -E 'atomic_inc_not_zero|atomic_long_inc_not_zero' $(srctree)/kernel/cred.c | head -1 | cut -d' ' -f1), atomic_long_inc_not_zero)
|
||||
ATOMIC_INC_FUNC := atomic_long_inc_not_zero
|
||||
else
|
||||
$(info -- SukiSU: Neither atomic_inc_not_zero nor atomic_long_inc_not_zero found in kernel/cred.c)
|
||||
$(error Aborting due to unsupported atomic function)
|
||||
endif
|
||||
|
||||
$(info -- SukiSU: Using $(ATOMIC_INC_FUNC) in get_cred_rcu patch.)
|
||||
|
||||
# 定义get_cred_rcu函数
|
||||
GET_CRED_RCU := static inline const struct cred *get_cred_rcu(const struct cred *cred)\n\
|
||||
{\n\t\
|
||||
struct cred *nonconst_cred = (struct cred *) cred;\n\t\
|
||||
if (!cred)\n\t\t\
|
||||
return NULL;\n\t\
|
||||
if (!$(ATOMIC_INC_FUNC)(&nonconst_cred->usage))\n\t\t\
|
||||
return NULL;\n\t\
|
||||
validate_creds(cred);\n\t\
|
||||
return cred;\n\
|
||||
}\n
|
||||
|
||||
# 插入get_cred_rcu函数
|
||||
ifneq ($(shell $(call check_function_exists, $(srctree)/include/linux/cred.h); echo $$?),0)
|
||||
$(info -- SukiSU: Adding function 'get_cred_rcu' to $(srctree)/include/linux/cred.h)
|
||||
$(call insert_code_block, $(srctree)/include/linux/cred.h, $(GET_CRED_RCU), static inline void put_cred)
|
||||
endif
|
||||
|
||||
# 修改get_task_cred函数
|
||||
$(info -- SukiSU: Modifying 'get_task_cred' function in $(srctree)/kernel/cred.c)
|
||||
$(shell sed -i "s/!$(ATOMIC_INC_FUNC)(&((struct cred \*)cred)->usage)/!get_cred_rcu(cred)/g" $(srctree)/kernel/cred.c)
|
||||
|
||||
# 定义can_umount函数
|
||||
CAN_UMOUNT := static int can_umount(const struct path *path, int flags)\n\
|
||||
{\n\t\
|
||||
struct mount *mnt = real_mount(path->mnt);\n\t\
|
||||
if (flags & ~(MNT_FORCE | MNT_DETACH | MNT_EXPIRE | UMOUNT_NOFOLLOW))\n\t\t\
|
||||
return -EINVAL;\n\t\
|
||||
if (!may_mount())\n\t\t\
|
||||
return -EPERM;\n\t\
|
||||
if (path->dentry != path->mnt->mnt_root)\n\t\t\
|
||||
return -EINVAL;\n\t\
|
||||
if (!check_mnt(mnt))\n\t\t\
|
||||
return -EINVAL;\n\t\
|
||||
if (mnt->mnt.mnt_flags & MNT_LOCKED)\n\t\t\
|
||||
return -EINVAL;\n\t\
|
||||
if (flags & MNT_FORCE && !capable(CAP_SYS_ADMIN))\n\t\t\
|
||||
return -EPERM;\n\t\
|
||||
return 0;\n\
|
||||
}\n
|
||||
|
||||
# 插入can_umount函数
|
||||
ifneq ($(shell grep -Pq '^\s*static\s+int\s+can_umount\s*\(' $(srctree)/fs/namespace.c; echo $$?),0)
|
||||
$(info -- SukiSU: Adding function 'can_umount' to $(srctree)/fs/namespace.c)
|
||||
$(call insert_code_block, $(srctree)/fs/namespace.c, $(CAN_UMOUNT), static bool is_mnt_ns_file)
|
||||
endif
|
||||
|
||||
# 定义path_umount函数
|
||||
PATH_UMOUNT := int path_umount(struct path *path, int flags)\n\
|
||||
{\n\t\
|
||||
struct mount *mnt = real_mount(path->mnt);\n\t\
|
||||
int ret;\n\t\
|
||||
ret = can_umount(path, flags);\n\t\
|
||||
if (!ret)\n\t\t\
|
||||
ret = do_umount(mnt, flags);\n\t\
|
||||
dput(path->dentry);\n\t\
|
||||
mntput_no_expire(mnt);\n\t\
|
||||
return ret;\n\
|
||||
}\n
|
||||
|
||||
# 插入path_umount函数
|
||||
ifneq ($(shell grep -Pq '^\s*int\s+path_umount\s*\(' $(srctree)/fs/namespace.c; echo $$?),0)
|
||||
$(info -- SukiSU: Adding function 'path_umount' to $(srctree)/fs/namespace.c)
|
||||
$(call insert_code_block, $(srctree)/fs/namespace.c, $(PATH_UMOUNT), static bool is_mnt_ns_file)
|
||||
endif
|
||||
|
||||
# 插入path_umount声明
|
||||
ifneq ($(shell grep -Pq '^\s*int\s+path_umount\s*\(' $(srctree)/fs/internal.h; echo $$?),0)
|
||||
$(info -- SukiSU: Adding 'path_umount' declaration to $(srctree)/fs/internal.h)
|
||||
$(call insert_code_block, $(srctree)/fs/internal.h, "int path_umount(struct path *path, int flags);", extern void __init mnt_init)
|
||||
endif
|
||||
|
||||
ccflags-y += -DKSU_UMOUNT
|
||||
endif
|
||||
|
||||
## For susfs stuff ##
|
||||
ifeq ($(shell test -e $(srctree)/fs/susfs.c; echo $$?),0)
|
||||
$(eval SUSFS_VERSION=$(shell cat $(srctree)/include/linux/susfs.h | grep -E '^#define SUSFS_VERSION' | cut -d' ' -f3 | sed 's/"//g'))
|
||||
|
||||
@@ -1,154 +0,0 @@
|
||||
# 该功能在 linux 5.0-rc1 中引入
|
||||
ifeq ($(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 $$?),0)
|
||||
ccflags-y += -DKSU_COMPAT_HAS_NONCONST_CRED
|
||||
endif
|
||||
endif
|
||||
|
||||
# 处理可选的backport
|
||||
ifeq ($(shell grep -q "strncpy_from_user_nofault" $(srctree)/include/linux/uaccess.h; echo $$?),0)
|
||||
ccflags-y += -DKSU_STRNCPY_FROM_USER_NOFAULT
|
||||
endif
|
||||
|
||||
ifeq ($(shell grep -q "ssize_t kernel_read" $(srctree)/fs/read_write.c; echo $$?),0)
|
||||
ccflags-y += -DKSU_KERNEL_READ
|
||||
endif
|
||||
|
||||
ifeq ($(shell grep "ssize_t kernel_write" $(srctree)/fs/read_write.c | grep -q "const void" ; echo $$?),0)
|
||||
ccflags-y += -DKSU_KERNEL_WRITE
|
||||
endif
|
||||
|
||||
# 检查三星 UH 驱动程序
|
||||
ifeq ($(shell grep -q "CONFIG_KDP_CRED" $(srctree)/kernel/cred.c; echo $$?),0)
|
||||
ccflags-y += -DSAMSUNG_UH_DRIVER_EXIST
|
||||
endif
|
||||
|
||||
|
||||
BackPort := $(strip $(shell \
|
||||
if [ "$(VERSION)" -ge "5" -a "$(PATCHLEVEL)" -ge "10" ]; then \
|
||||
echo FALSE; \
|
||||
else \
|
||||
echo TRUE; \
|
||||
fi \
|
||||
))
|
||||
ifeq ($(BackPort),FALSE)
|
||||
define check_file_exists
|
||||
if [ ! -f $(1) ]; then \
|
||||
echo "-- SukiSU: Error: File '$(1)' does not exist"; \
|
||||
exit 1; \
|
||||
fi
|
||||
endef
|
||||
|
||||
define check_function_exists
|
||||
$(call check_file_exists, $(1))
|
||||
grep -Pq '^\s*static\s+inline\s+const\s+struct\s+cred\s+\*\s+get_cred_rcu\s*\(' $(1)
|
||||
endef
|
||||
|
||||
define check_code_block
|
||||
$(call check_file_exists, $(1))
|
||||
grep -Fq "$(2)" $(1)
|
||||
endef
|
||||
|
||||
|
||||
define insert_code_block
|
||||
$(call check_file_exists, $(1))
|
||||
$(call backup_file, $(1))
|
||||
if ! $(call check_code_block, $(1), $(2)); then \
|
||||
echo "-- SukiSU: Inserting code block into $(1)"; \
|
||||
sed -i '/^$(3)/i $(2)' $(1); \
|
||||
else \
|
||||
echo "-- SukiSU: Code block already exists in $(1), skipping"; \
|
||||
fi
|
||||
endef
|
||||
|
||||
# 检测原子函数
|
||||
ifeq ($(shell grep -E 'atomic_inc_not_zero|atomic_long_inc_not_zero' $(srctree)/kernel/cred.c | head -1 | cut -d' ' -f1), atomic_inc_not_zero)
|
||||
ATOMIC_INC_FUNC := atomic_inc_not_zero
|
||||
else ifeq ($(shell grep -E 'atomic_inc_not_zero|atomic_long_inc_not_zero' $(srctree)/kernel/cred.c | head -1 | cut -d' ' -f1), atomic_long_inc_not_zero)
|
||||
ATOMIC_INC_FUNC := atomic_long_inc_not_zero
|
||||
else
|
||||
$(info -- SukiSU: Neither atomic_inc_not_zero nor atomic_long_inc_not_zero found in kernel/cred.c)
|
||||
$(error Aborting due to unsupported atomic function)
|
||||
endif
|
||||
|
||||
$(info -- SukiSU: Using $(ATOMIC_INC_FUNC) in get_cred_rcu patch.)
|
||||
|
||||
# 定义get_cred_rcu函数
|
||||
GET_CRED_RCU := static inline const struct cred *get_cred_rcu(const struct cred *cred)\n\
|
||||
{\n\t\
|
||||
struct cred *nonconst_cred = (struct cred *) cred;\n\t\
|
||||
if (!cred)\n\t\t\
|
||||
return NULL;\n\t\
|
||||
if (!$(ATOMIC_INC_FUNC)(&nonconst_cred->usage))\n\t\t\
|
||||
return NULL;\n\t\
|
||||
validate_creds(cred);\n\t\
|
||||
return cred;\n\
|
||||
}\n
|
||||
|
||||
# 插入get_cred_rcu函数
|
||||
ifneq ($(shell $(call check_function_exists, $(srctree)/include/linux/cred.h); echo $$?),0)
|
||||
$(info -- SukiSU: Adding function 'get_cred_rcu' to $(srctree)/include/linux/cred.h)
|
||||
$(call insert_code_block, $(srctree)/include/linux/cred.h, $(GET_CRED_RCU), static inline void put_cred)
|
||||
endif
|
||||
|
||||
# 修改get_task_cred函数
|
||||
$(info -- SukiSU: Modifying 'get_task_cred' function in $(srctree)/kernel/cred.c)
|
||||
$(shell sed -i "s/!$(ATOMIC_INC_FUNC)(&((struct cred \*)cred)->usage)/!get_cred_rcu(cred)/g" $(srctree)/kernel/cred.c)
|
||||
|
||||
# 定义can_umount函数
|
||||
CAN_UMOUNT := static int can_umount(const struct path *path, int flags)\n\
|
||||
{\n\t\
|
||||
struct mount *mnt = real_mount(path->mnt);\n\t\
|
||||
if (flags & ~(MNT_FORCE | MNT_DETACH | MNT_EXPIRE | UMOUNT_NOFOLLOW))\n\t\t\
|
||||
return -EINVAL;\n\t\
|
||||
if (!may_mount())\n\t\t\
|
||||
return -EPERM;\n\t\
|
||||
if (path->dentry != path->mnt->mnt_root)\n\t\t\
|
||||
return -EINVAL;\n\t\
|
||||
if (!check_mnt(mnt))\n\t\t\
|
||||
return -EINVAL;\n\t\
|
||||
if (mnt->mnt.mnt_flags & MNT_LOCKED)\n\t\t\
|
||||
return -EINVAL;\n\t\
|
||||
if (flags & MNT_FORCE && !capable(CAP_SYS_ADMIN))\n\t\t\
|
||||
return -EPERM;\n\t\
|
||||
return 0;\n\
|
||||
}\n
|
||||
|
||||
# 插入can_umount函数
|
||||
ifneq ($(shell grep -Pq '^\s*static\s+int\s+can_umount\s*\(' $(srctree)/fs/namespace.c; echo $$?),0)
|
||||
$(info -- SukiSU: Adding function 'can_umount' to $(srctree)/fs/namespace.c)
|
||||
$(call insert_code_block, $(srctree)/fs/namespace.c, $(CAN_UMOUNT), static bool is_mnt_ns_file)
|
||||
endif
|
||||
|
||||
# 定义path_umount函数
|
||||
PATH_UMOUNT := int path_umount(struct path *path, int flags)\n\
|
||||
{\n\t\
|
||||
struct mount *mnt = real_mount(path->mnt);\n\t\
|
||||
int ret;\n\t\
|
||||
ret = can_umount(path, flags);\n\t\
|
||||
if (!ret)\n\t\t\
|
||||
ret = do_umount(mnt, flags);\n\t\
|
||||
dput(path->dentry);\n\t\
|
||||
mntput_no_expire(mnt);\n\t\
|
||||
return ret;\n\
|
||||
}\n
|
||||
|
||||
# 插入path_umount函数
|
||||
ifneq ($(shell grep -Pq '^\s*int\s+path_umount\s*\(' $(srctree)/fs/namespace.c; echo $$?),0)
|
||||
$(info -- SukiSU: Adding function 'path_umount' to $(srctree)/fs/namespace.c)
|
||||
$(call insert_code_block, $(srctree)/fs/namespace.c, $(PATH_UMOUNT), static bool is_mnt_ns_file)
|
||||
endif
|
||||
|
||||
# 插入path_umount声明
|
||||
ifneq ($(shell grep -Pq '^\s*int\s+path_umount\s*\(' $(srctree)/fs/internal.h; echo $$?),0)
|
||||
$(info -- SukiSU: Adding 'path_umount' declaration to $(srctree)/fs/internal.h)
|
||||
$(call insert_code_block, $(srctree)/fs/internal.h, "int path_umount(struct path *path, int flags);", extern void __init mnt_init)
|
||||
endif
|
||||
|
||||
ccflags-y += -DKSU_UMOUNT
|
||||
endif
|
||||
Reference in New Issue
Block a user