xnu-3789.51.2.tar.gz

[apple/xnu.git] / bsd / sys / ubc.h

diff --git a/bsd/sys/ubc.h b/bsd/sys/ubc.h
index 37bcdfcff6e1798ade727c94376132649c8f98dc..278c8488932a8a30a44c575f0d8e696b3d567416 100644 (file)
--- a/bsd/sys/ubc.h
+++ b/bsd/sys/ubc.h
@@ -38,9 +38,13 @@
 #include <sys/kernel_types.h>
 #include <kern/locks.h>
 #include <mach/memory_object_types.h>
+#include <sys/ucred.h>
 
+#ifdef KERNEL_PRIVATE
+#include <sys/imgact.h>
+#endif // KERNEL_PRIVATE
 
-/* defns for ubc_sync_range() and ubc_msync */
+/* defns for ubc_msync() and ubc_msync */
 
 #define        UBC_PUSHDIRTY   0x01    /* clean any dirty pages in the specified range to the backing store */
 #define        UBC_PUSHALL     0x02    /* push both dirty and precious pages to the backing store */
@@ -54,11 +58,21 @@ daddr64_t   ubc_offtoblk(struct vnode *, off_t);
 off_t  ubc_getsize(struct vnode *);
 int    ubc_setsize(struct vnode *, off_t);
 
+#ifdef KERNEL_PRIVATE
+
+enum {
+       UBC_SETSIZE_NO_FS_REENTRY = 1
+};
+typedef uint32_t ubc_setsize_opts_t;
+
+errno_t ubc_setsize_ex(vnode_t vp, off_t nsize, ubc_setsize_opts_t opts);
+
+#endif // KERNEL_PRIVATE
+
 kauth_cred_t ubc_getcred(struct vnode *);
 struct thread;
 int    ubc_setthreadcred(struct vnode *, struct proc *, struct thread *);
 
-int     ubc_sync_range(vnode_t, off_t, off_t, int);
 errno_t ubc_msync(vnode_t, off_t, off_t, off_t *, int);
 int    ubc_pages_resident(vnode_t);
 int    ubc_page_op(vnode_t, off_t, int, ppnum_t *, int *);
@@ -70,7 +84,16 @@ int  ubc_setcred(struct vnode *, struct proc *) __deprecated;
 /* code signing */
 struct cs_blob;
 struct cs_blob *ubc_cs_blob_get(vnode_t, cpu_type_t, off_t);
-int cs_entitlements_blob_get(proc_t p, void **, size_t *);
+
+/* apis to handle generation count for cs blob */
+void cs_blob_reset_cache(void);
+int ubc_cs_blob_revalidate(vnode_t, struct cs_blob *, struct image_params *, int);
+int ubc_cs_generation_check(vnode_t);
+
+int cs_entitlements_blob_get(proc_t, void **, size_t *);
+int cs_blob_get(proc_t, void **, size_t *);
+const char *cs_identity_get(proc_t);
+
 #endif
 
 /* cluster IO routines */
@@ -91,6 +114,7 @@ int  cluster_pagein_ext(vnode_t, upl_t, upl_offset_t, off_t, int, off_t, int, int
 
 int    cluster_push(vnode_t, int);
 int    cluster_push_ext(vnode_t, int, int (*)(buf_t, void *), void *);
+int    cluster_push_err(vnode_t, int, int (*)(buf_t, void *), void *, int *);
 
 int    cluster_bp(buf_t);
 int    cluster_bp_ext(buf_t, int (*)(buf_t, void *), void *);
@@ -100,6 +124,9 @@ void        cluster_zero(upl_t, upl_offset_t, int, buf_t);
 int    cluster_copy_upl_data(uio_t, upl_t, int, int *);
 int    cluster_copy_ubc_data(vnode_t, uio_t, int *, int);
 
+typedef struct cl_direct_read_lock cl_direct_read_lock_t;
+cl_direct_read_lock_t *cluster_lock_direct_read(vnode_t vp, lck_rw_type_t exclusive);
+void cluster_unlock_direct_read(cl_direct_read_lock_t *lck);
 
 /* UPL routines */
 int    ubc_create_upl(vnode_t, off_t, int, upl_t *, upl_page_info_t **, int);
@@ -116,6 +143,17 @@ upl_size_t ubc_upl_maxbufsize(void);
 
 int    is_file_clean(vnode_t, off_t);
 
+errno_t mach_to_bsd_errno(kern_return_t mach_err);
+
+#ifdef KERNEL_PRIVATE
+
+__attribute__((pure)) boolean_t ubc_is_mapped(const struct vnode *, boolean_t *writable);
+__attribute__((pure)) boolean_t ubc_is_mapped_writable(const struct vnode *);
+
+uint32_t cluster_max_io_size(mount_t, int);
+
+#endif
+
 __END_DECLS
 
 #endif /* _SYS_UBC_H_ */