232 lines
9.1 KiB
Makefile
232 lines
9.1 KiB
Makefile
kernelsu-objs := ksu.o
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kernelsu-objs += allowlist.o
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kernelsu-objs += apk_sign.o
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kernelsu-objs += sucompat.o
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kernelsu-objs += throne_tracker.o
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kernelsu-objs += core_hook.o
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kernelsu-objs += ksud.o
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kernelsu-objs += embed_ksud.o
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kernelsu-objs += kernel_compat.o
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kernelsu-objs += selinux/selinux.o
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kernelsu-objs += selinux/sepolicy.o
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kernelsu-objs += selinux/rules.o
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ccflags-y += -I$(srctree)/security/selinux -I$(srctree)/security/selinux/include
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ccflags-y += -I$(objtree)/security/selinux -include $(srctree)/include/uapi/asm-generic/errno.h
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ccflags-y += -Wno-implicit-function-declaration -Wno-strict-prototypes -Wno-int-conversion
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ccflags-y += -Wno-declaration-after-statement -Wno-unused-function
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obj-$(CONFIG_KSU) += kernelsu.o
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obj-$(CONFIG_KPM) += kpm/
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ifeq ($(strip $(CONFIG_KSU_HOOK_KPROBES)),y)
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$(info -- SukiSU: KPROBES hooking enabled!)
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else
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$(info -- SukiSU: Manual hooking enabled!)
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ifeq ($(strip $(CONFIG_KSU)),m)
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$(error CONFIG_KSU_MANUAL_HOOK cannot be enabled when compiling SukiSU as LKM!)
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endif
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endif
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# .git is a text file while the module is imported by 'git submodule add'.
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ifeq ($(shell test -e $(srctree)/$(src)/../.git; echo $$?),0)
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$(shell cd $(srctree)/$(src); /usr/bin/env PATH="$$PATH":/usr/bin:/usr/local/bin [ -f ../.git/shallow ] && git fetch --unshallow)
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KSU_GIT_VERSION := $(shell cd $(srctree)/$(src); /usr/bin/env PATH="$$PATH":/usr/bin:/usr/local/bin git rev-list --count main)
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# ksu_version: major * 10000 + git version + 606 for historical reasons
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$(eval KSU_VERSION=$(shell expr 10000 + $(KSU_GIT_VERSION) + 606))
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$(info -- SukiSU version: $(KSU_VERSION))
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ccflags-y += -DKSU_VERSION=$(KSU_VERSION)
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else # If there is no .git file, the default version will be passed.
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$(warning "KSU_GIT_VERSION not defined! It is better to make SukiSU a git submodule!")
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ccflags-y += -DKSU_VERSION=12800
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endif
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ifndef KSU_EXPECTED_SIZE
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KSU_EXPECTED_SIZE := 0x35c
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endif
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ifndef KSU_EXPECTED_HASH
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KSU_EXPECTED_HASH := 947ae944f3de4ed4c21a7e4f7953ecf351bfa2b36239da37a34111ad29993eef
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endif
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ifdef KSU_MANAGER_PACKAGE
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ccflags-y += -DKSU_MANAGER_PACKAGE=\"$(KSU_MANAGER_PACKAGE)\"
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$(info -- SukiSU Manager package name: $(KSU_MANAGER_PACKAGE))
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endif
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$(info -- SukiSU Manager signature size: $(KSU_EXPECTED_SIZE))
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$(info -- SukiSU Manager signature hash: $(KSU_EXPECTED_HASH))
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$(info -- Supported Unofficial Manager: 5ec1cff (GKI) rsuntk (Non-GKI) ShirkNeko udochina (GKI and non-GKI and KPM))
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KERNEL_VERSION := $(VERSION).$(PATCHLEVEL)
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KERNEL_MAJOR_VERSION := $(word 1, $(subst ., , $(KERNEL_VERSION)))
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KERNEL_MINOR_VERSION := $(word 2, $(subst ., , $(KERNEL_VERSION)))
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ifeq ($(KERNEL_MAJOR_VERSION),5)
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ifeq ($(KERNEL_MINOR_VERSION),4)
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KSU_KERNEL_TYPE := GKI 1.0
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else ifeq ($(findstring $(KERNEL_MINOR_VERSION),$(filter $(KERNEL_MINOR_VERSION),10 11 12 13 14 15 16 17 18 19 20)),1)
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KSU_KERNEL_TYPE := GKI 2.0
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else
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KSU_KERNEL_TYPE := Non-GKI
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endif
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else ifeq ($(KERNEL_MAJOR_VERSION),4)
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KSU_KERNEL_TYPE := Non-GKI
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else ifeq ($(KERNEL_MAJOR_VERSION),6)
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KSU_KERNEL_TYPE := GKI 2.0
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else
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KSU_KERNEL_TYPE := Non-GKI
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endif
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$(info -- KERNEL_VERSION: $(KERNEL_VERSION))
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$(info -- KERNEL_TYPE: $(KSU_KERNEL_TYPE))
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# Check if KPM is enabled
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ifeq ($(CONFIG_KPM),y)
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$(info -- KPM is enabled)
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else
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$(info -- KPM is disabled)
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endif
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# 检查原子函数
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ifeq ($(shell grep -q "atomic_inc_not_zero" $(srctree)/kernel/cred.c; echo $$?),0)
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ATOMIC_INC_FUNC = atomic_inc_not_zero
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else ifeq ($(shell grep -q "atomic_long_inc_not_zero" $(srctree)/kernel/cred.c; echo $$?),0)
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ATOMIC_INC_FUNC = atomic_long_inc_not_zero
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else
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$(info -- SukiSU compat: Neither atomic_inc_not_zero nor atomic_long_inc_not_zero found in kernel/cred.c)
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endif
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# Inform which function is being patched
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$(info -- SukiSU compat: Using $(ATOMIC_INC_FUNC) in get_cred_rcu patch.)
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# 写入签名
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ccflags-y += -DEXPECTED_SIZE=$(KSU_EXPECTED_SIZE)
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ccflags-y += -DEXPECTED_HASH=\"$(KSU_EXPECTED_HASH)\"
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# SELinux 驱动程序检查
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ifeq ($(shell grep -q "current_sid(void)" $(srctree)/security/selinux/include/objsec.h; echo $$?),0)
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ccflags-y += -DKSU_COMPAT_HAS_CURRENT_SID
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endif
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ifeq ($(shell grep -q "struct selinux_state " $(srctree)/security/selinux/include/security.h; echo $$?),0)
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ccflags-y += -DKSU_COMPAT_HAS_SELINUX_STATE
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endif
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# 该功能在 linux 5.0-rc1 中引入
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ifeq ($(shell grep -q "get_cred_rcu" $(srctree)/include/linux/cred.h; echo $$?),0)
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ccflags-y += -DKSU_COMPAT_HAS_GET_CRED_RCU
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else
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ifeq ($(shell grep -q "atomic_long_t\s\+\usage" $(srctree)/include/linux/cred.h; echo $$?),0)
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ccflags-y += -DKSU_COMPAT_ATOMIC_LONG
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endif
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ifeq ($(shell grep -q "int\s\+\non_rcu" $(srctree)/include/linux/cred.h; echo $$?),0)
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ccflags-y += -DKSU_COMPAT_HAS_NONCONST_CRED
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endif
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endif
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# 处理可选的backport
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ifeq ($(shell grep -q "strncpy_from_user_nofault" $(srctree)/include/linux/uaccess.h; echo $$?),0)
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ccflags-y += -DKSU_STRNCPY_FROM_USER_NOFAULT
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endif
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ifeq ($(shell grep -q "ssize_t kernel_read" $(srctree)/fs/read_write.c; echo $$?),0)
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ccflags-y += -DKSU_KERNEL_READ
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endif
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ifeq ($(shell grep "ssize_t kernel_write" $(srctree)/fs/read_write.c | grep -q "const void" ; echo $$?),0)
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ccflags-y += -DKSU_KERNEL_WRITE
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endif
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# 检查三星 UH 驱动程序
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ifeq ($(shell grep -q "CONFIG_KDP_CRED" $(srctree)/kernel/cred.c; echo $$?),0)
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ccflags-y += -DSAMSUNG_UH_DRIVER_EXIST
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endif
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ccflags-y += -DKSU_UMOUNT
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ccflags-y += -DKSU_COMPAT_GET_CRED_RCU
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# Add the get_cred_rcu function to cred.h if not already present
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ifneq ($(shell grep -Eq "^static inline const struct cred \*get_cred_rcu" $(srctree)/include/linux/cred.h; echo $$?),0)
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$(info -- SukiSU compat: adding function 'static inline const struct cred *get_cred_rcu(const struct cred *cred);' to $(srctree)/include/linux/cred.h)
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GET_CRED_RCU = static inline const struct cred *get_cred_rcu(const struct cred *cred)\n\
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{\n\t\
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struct cred *nonconst_cred = (struct cred *) cred;\n\t\
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if (!cred)\n\t\t\
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return NULL;\n\t\
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if (!$(ATOMIC_INC_FUNC)(&nonconst_cred->usage))\n\t\t\
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return NULL;\n\t\
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validate_creds(cred);\n\t\
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return cred;\n\
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}\n
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$(shell grep -qF "$(GET_CRED_RCU)" $(srctree)/include/linux/cred.h || sed -i '/^static inline void put_cred/i $(GET_CRED_RCU)' $(srctree)/include/linux/cred.h)
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# Modify get_task_cred in cred.c
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$(info -- SukiSU compat: modifying 'get_task_cred' function in $(srctree)/kernel/cred.c)
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$(shell sed -i "s/!$(ATOMIC_INC_FUNC)(&((struct cred \*)cred)->usage)/!get_cred_rcu(cred)/g" $(srctree)/kernel/cred.c)
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endif
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ifneq ($(shell grep -Eq "^static int can_umount" $(srctree)/fs/namespace.c; echo $$?),0)
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$(info -- SukiSU compat: adding function 'static int can_umount(const struct path *path, int flags);' to $(srctree)/fs/namespace.c)
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CAN_UMOUNT = static int can_umount(const struct path *path, int flags)\n\
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{\n\t\
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struct mount *mnt = real_mount(path->mnt);\n\t\
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if (flags & ~(MNT_FORCE | MNT_DETACH | MNT_EXPIRE | UMOUNT_NOFOLLOW))\n\t\t\
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return -EINVAL;\n\t\
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if (!may_mount())\n\t\t\
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return -EPERM;\n\t\
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if (path->dentry != path->mnt->mnt_root)\n\t\t\
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return -EINVAL;\n\t\
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if (!check_mnt(mnt))\n\t\t\
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return -EINVAL;\n\t\
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if (mnt->mnt.mnt_flags & MNT_LOCKED)\n\t\t\
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return -EINVAL;\n\t\
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if (flags & MNT_FORCE && !capable(CAP_SYS_ADMIN))\n\t\t\
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return -EPERM;\n\t\
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return 0;\n\
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}\n
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$(shell sed -i '/^static bool is_mnt_ns_file/i $(CAN_UMOUNT)' $(srctree)/fs/namespace.c;)
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endif
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ifneq ($(shell grep -Eq "^int path_umount" $(srctree)/fs/namespace.c; echo $$?),0)
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$(info -- SukiSU compat: adding function 'int path_umount(struct path *path, int flags);' to $(srctree)/fs/namespace.c)
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PATH_UMOUNT = int path_umount(struct path *path, int flags)\n\
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{\n\t\
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struct mount *mnt = real_mount(path->mnt);\n\t\
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int ret;\n\t\
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ret = can_umount(path, flags);\n\t\
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if (!ret)\n\t\t\
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ret = do_umount(mnt, flags);\n\t\
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dput(path->dentry);\n\t\
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mntput_no_expire(mnt);\n\t\
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return ret;\n\
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}\n
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$(shell sed -i '/^static bool is_mnt_ns_file/i $(PATH_UMOUNT)' $(srctree)/fs/namespace.c;)
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endif
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ifneq ($(shell grep -Eq "^int path_umount" $(srctree)/fs/internal.h; echo $$?),0)
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$(shell sed -i '/^extern void __init mnt_init/a int path_umount(struct path *path, int flags);' $(srctree)/fs/internal.h;)
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$(info -- SukiSU compat: adding 'int path_umount(struct path *path, int flags);' to $(srctree)/fs/internal.h)
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endif
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# Do checks before compile
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ifeq ($(shell grep -q "int\s\+\path_umount" $(srctree)/fs/namespace.c; echo $$?),0)
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$(info -- SukiSU: checks ok. Found path_umount)
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else
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$(info -- SukiSU: checks failed, abort.)
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$(error -- Backporting path_umount is mandatory !! Read: https://kernelsu.org/guide/how-to-integrate-for-non-gki.html#how-to-backport-path-umount)
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endif
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## For susfs stuff ##
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ifeq ($(shell test -e $(srctree)/fs/susfs.c; echo $$?),0)
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$(eval SUSFS_VERSION=$(shell cat $(srctree)/include/linux/susfs.h | grep -E '^#define SUSFS_VERSION' | cut -d' ' -f3 | sed 's/"//g'))
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$(info )
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$(info -- SUSFS_VERSION: $(SUSFS_VERSION))
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else
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$(info -- You have not integrate susfs in your kernel.)
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$(info -- Read: https://gitlab.com/simonpunk/susfs4ksu)
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endif
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# Keep a new line here!! Because someone may append config
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