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authorPoul-Henning Kamp <phk@FreeBSD.org>2000-08-20 21:34:39 +0000
committerPoul-Henning Kamp <phk@FreeBSD.org>2000-08-20 21:34:39 +0000
commit3f54a085a603b050163611ce23972ee8de7636f1 (patch)
tree4a236ab334d49bc97f4741cc058e0ae301786c02 /sys/fs/devfs/devfs.h
parente0faad6850ddd7593f869132fc7647c1576e0f6d (diff)
Notes
Diffstat (limited to 'sys/fs/devfs/devfs.h')
-rw-r--r--sys/fs/devfs/devfs.h97
1 files changed, 97 insertions, 0 deletions
diff --git a/sys/fs/devfs/devfs.h b/sys/fs/devfs/devfs.h
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+++ b/sys/fs/devfs/devfs.h
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+/*
+ * Copyright (c) 1992, 1993
+ * The Regents of the University of California. All rights reserved.
+ * Copyright (c) 2000
+ * Poul-Henning Kamp. All rights reserved.
+ *
+ * This code is derived from software donated to Berkeley by
+ * Jan-Simon Pendry.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)kernfs.h 8.6 (Berkeley) 3/29/95
+ * From: FreeBSD: src/sys/miscfs/kernfs/kernfs.h 1.14
+ *
+ * $FreeBSD$
+ */
+
+#ifdef _KERNEL
+
+#ifdef DEVFS_INTERN
+
+#define NDEVINO 1024
+
+MALLOC_DECLARE(M_DEVFS);
+
+struct devfs_dir {
+ TAILQ_HEAD(, devfs_dirent) dd_list;
+};
+
+struct devfs_dirent {
+ int de_inode;
+ struct dirent *de_dirent;
+ TAILQ_ENTRY(devfs_dirent) de_list;
+ struct devfs_dir *de_dir;
+ mode_t de_mode;
+ uid_t de_uid;
+ gid_t de_gid;
+ struct timespec de_atime;
+ struct timespec de_mtime;
+ struct timespec de_ctime;
+ struct vnode *de_vnode;
+ char * de_symlink;
+};
+
+struct devfs_node {
+ struct kern_target *kf_kt;
+};
+
+struct devfs_mount {
+ struct vnode *dm_root; /* Root node */
+ struct devfs_dir *dm_rootdir;
+ struct devfs_dir *dm_basedir;
+ unsigned dm_generation;
+ struct devfs_dirent *dm_dirent[NDEVINO];
+ int dm_inode;
+};
+
+
+extern dev_t devfs_inot[NDEVINO];
+extern int devfs_nino;
+extern unsigned devfs_generation;
+
+#define VFSTODEVFS(mp) ((struct devfs_mount *)((mp)->mnt_data))
+
+extern vop_t **devfs_vnodeop_p;
+extern vop_t **devfs_specop_p;
+int devfs_populate __P((struct devfs_mount *dm));
+struct devfs_dir * devfs_vmkdir __P((void));
+struct devfs_dirent * devfs_newdirent __P((char *name, int namelen));
+void devfs_purge __P((struct devfs_dir *dd));
+void devfs_delete __P((struct devfs_dir *dd, struct devfs_dirent *de));
+#endif /* DEVFS_INTERN */
+
+typedef void (*devfs_clone_fn) __P((void *arg, char *name, int namelen, dev_t *result));
+
+int devfs_stdclone __P((char *name, char **namep, char *stem, int *unit));
+EVENTHANDLER_DECLARE(devfs_clone, devfs_clone_fn);
+#endif /* _KERNEL */