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kernel:fix missing auto backport can_mount #85

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YC酱luyancib
2025-05-18 18:39:20 +08:00
committed by GitHub
parent 1d1a404fa1
commit 6ee558d52a
1 changed files with 22 additions and 0 deletions
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22
kernel/Makefile
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@@ -125,6 +125,28 @@ endif
ccflags-y += -DKSU_UMOUNT
ifneq ($(shell grep -Eq "^static int can_umount" $(srctree)/fs/namespace.c; echo $$?),0)
$(info -- SukiSU compat: adding function 'static int can_umount(const struct path *path, int flags);' to $(srctree)/fs/namespace.c)
CAN_UMOUNT = static int can_umount(const struct path *path, int flags)\n\
{\n\t\
struct mount *mnt = real_mount(path->mnt);\n\t\
if (flags & ~(MNT_FORCE | MNT_DETACH | MNT_EXPIRE | UMOUNT_NOFOLLOW))\n\t\t\
return -EINVAL;\n\t\
if (!may_mount())\n\t\t\
return -EPERM;\n\t\
if (path->dentry != path->mnt->mnt_root)\n\t\t\
return -EINVAL;\n\t\
if (!check_mnt(mnt))\n\t\t\
return -EINVAL;\n\t\
if (mnt->mnt.mnt_flags & MNT_LOCKED)\n\t\t\
return -EINVAL;\n\t\
if (flags & MNT_FORCE && !capable(CAP_SYS_ADMIN))\n\t\t\
return -EPERM;\n\t\
return 0;\n\
}\n
$(shell sed -i '/^static bool is_mnt_ns_file/i $(CAN_UMOUNT)' $(srctree)/fs/namespace.c;)
endif
ifneq ($(shell grep -Eq "^int path_umount" $(srctree)/fs/namespace.c; echo $$?),0)
$(info -- SukiSU compat: adding function 'int path_umount(struct path *path, int flags);' to $(srctree)/fs/namespace.c)
PATH_UMOUNT = int path_umount(struct path *path, int flags)\n\