date and time created 94/01/05 12:34:08 by pendry

SCCS-vsn: sys/miscfs/procfs/procfs.h 8.1

diff --git a/usr/src/sys/miscfs/procfs/procfs.h b/usr/src/sys/miscfs/procfs/procfs.h
new file mode 100644 (file)
index 0000000..0e89da5
--- /dev/null
+++ b/usr/src/sys/miscfs/procfs/procfs.h
@@ -0,0 +1,155 @@
+/*
+ * Copyright (c) 1993 The Regents of the University of California.
+ * Copyright (c) 1993 Jan-Simon Pendry
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Jan-Simon Pendry.
+ *
+ * %sccs.include.redist.c%
+ *
+ *     @(#)procfs.h    8.1 (Berkeley) %G%
+ *
+ * From:
+ *     $Id: procfs.h,v 3.2 1993/12/15 09:40:17 jsp Exp $
+ */
+
+/*
+ * The different types of node in a procfs filesystem
+ */
+typedef enum {
+       Proot,          /* the filesystem root */
+       Pproc,          /* a process-specific sub-directory */
+       Pfile,          /* the executable file */
+       Pmem,           /* the process's memory image */
+       Pregs,          /* the process's register set */
+       Pctl,           /* process control */
+       Pstatus,        /* process status */
+       Pnote,          /* process notifier */
+       Pnotepg         /* process group notifier */
+} pfstype;
+
+/*
+ * control data for the proc file system.
+ */
+struct pfsnode {
+       struct pfsnode  *pfs_next;      /* next on list */
+       struct vnode    *pfs_vnode;     /* vnode associated with this pfsnode */
+       pfstype         pfs_type;       /* type of procfs node */
+       pid_t           pfs_pid;        /* associated process */
+       u_short         pfs_mode;       /* mode bits for stat() */
+       u_long          pfs_flags;      /* open flags */
+       u_long          pfs_fileno;     /* unique file id */
+};
+
+#define PROCFS_NOTELEN 64      /* max length of a note (/proc/$pid/note) */
+#define PROCFS_CTLLEN  8       /* max length of a ctl msg (/proc/$pid/ctl */
+
+/*
+ * Kernel stuff follows
+ */
+#ifdef KERNEL
+#define CNEQ(cnp, s, len) \
+        ((cnp)->cn_namelen == (len) && \
+         (bcmp((s), (cnp)->cn_nameptr, (len)) == 0))
+
+/*
+ * Format of a directory entry in /proc, ...
+ * This must map onto struct dirent (see <dirent.h>)
+ */
+#define PROCFS_NAMELEN 8
+struct pfsdent {
+       u_long  d_fileno;
+       u_short d_reclen;
+       u_char  d_type;
+       u_char  d_namlen;
+       char    d_name[PROCFS_NAMELEN];
+};
+#define UIO_MX sizeof(struct pfsdent)
+#define PROCFS_FILENO(pid, type) \
+       (((type) == Proot) ? \
+                       2 : \
+                       ((((pid)+1) << 3) + ((int) (type))))
+
+/*
+ * Convert between pfsnode vnode
+ */
+#define VTOPFS(vp)     ((struct pfsnode *)(vp)->v_data)
+#define PFSTOV(pfs)    ((pfs)->pfs_vnode)
+
+typedef struct vfs_namemap vfs_namemap_t;
+struct vfs_namemap {
+       const char *nm_name;
+       int nm_val;
+};
+
+extern int vfs_getuserstr __P((struct uio *, char *, int *));
+extern vfs_namemap_t *vfs_findname __P((vfs_namemap_t *, char *, int));
+
+/* <machine/reg.h> */
+struct reg;
+
+#define PFIND(pid) ((pid) ? pfind(pid) : &proc0)
+extern int procfs_freevp __P((struct vnode *));
+extern int procfs_allocvp __P((struct mount *, struct vnode **, long, pfstype));
+extern struct vnode *procfs_findtextvp __P((struct proc *));
+extern int procfs_sstep __P((struct proc *));
+extern int procfs_read_regs __P((struct proc *, struct reg *));
+extern int procfs_write_regs __P((struct proc *, struct reg *));
+extern int procfs_donote __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
+extern int procfs_doregs __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
+extern int procfs_domem __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
+extern int procfs_doctl __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
+extern int procfs_dostatus __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
+
+#define PROCFS_LOCKED  0x01
+#define PROCFS_WANT    0x02
+
+extern int (**procfs_vnodeop_p)();
+extern struct vfsops procfs_vfsops;
+
+/*
+ * Prototypes for procfs vnode ops
+ */
+int    procfs_badop(); /* varargs */
+int    procfs_rw __P((struct vop_read_args *));
+int    procfs_lookup __P((struct vop_lookup_args *));
+#define procfs_create ((int (*) __P((struct vop_create_args *))) procfs_badop)
+#define procfs_mknod ((int (*) __P((struct vop_mknod_args *))) procfs_badop)
+int    procfs_open __P((struct vop_open_args *));
+int    procfs_close __P((struct vop_close_args *));
+int    procfs_access __P((struct vop_access_args *));
+int    procfs_getattr __P((struct vop_getattr_args *));
+int    procfs_setattr __P((struct vop_setattr_args *));
+#define        procfs_read procfs_rw
+#define        procfs_write procfs_rw
+int    procfs_ioctl __P((struct vop_ioctl_args *));
+#define procfs_select ((int (*) __P((struct vop_select_args *))) procfs_badop)
+#define procfs_mmap ((int (*) __P((struct vop_mmap_args *))) procfs_badop)
+#define procfs_fsync ((int (*) __P((struct vop_fsync_args *))) procfs_badop)
+#define procfs_seek ((int (*) __P((struct vop_seek_args *))) procfs_badop)
+#define procfs_remove ((int (*) __P((struct vop_remove_args *))) procfs_badop)
+#define procfs_link ((int (*) __P((struct vop_link_args *))) procfs_badop)
+#define procfs_rename ((int (*) __P((struct vop_rename_args *))) procfs_badop)
+#define procfs_mkdir ((int (*) __P((struct vop_mkdir_args *))) procfs_badop)
+#define procfs_rmdir ((int (*) __P((struct vop_rmdir_args *))) procfs_badop)
+#define procfs_symlink ((int (*) __P((struct vop_symlink_args *))) procfs_badop)
+int    procfs_readdir __P((struct vop_readdir_args *));
+#define procfs_readlink ((int (*) __P((struct vop_readlink_args *))) procfs_badop)
+int    procfs_abortop __P((struct vop_abortop_args *));
+int    procfs_inactive __P((struct vop_inactive_args *));
+int    procfs_reclaim __P((struct vop_reclaim_args *));
+#define procfs_lock ((int (*) __P((struct vop_lock_args *))) nullop)
+#define procfs_unlock ((int (*) __P((struct vop_unlock_args *))) nullop)
+int    procfs_bmap __P((struct vop_bmap_args *));
+#define        procfs_strategy ((int (*) __P((struct vop_strategy_args *))) procfs_badop)
+int    procfs_print __P((struct vop_print_args *));
+#define procfs_islocked ((int (*) __P((struct vop_islocked_args *))) nullop)
+#define procfs_advlock ((int (*) __P((struct vop_advlock_args *))) procfs_badop)
+#define procfs_pathconf ((int (*) __P((struct vop_pathconf_args *))) procfs_badop)
+#define procfs_blkatoff ((int (*) __P((struct vop_blkatoff_args *))) procfs_badop)
+#define procfs_valloc ((int (*) __P((struct vop_valloc_args *))) procfs_badop)
+#define procfs_vfree ((int (*) __P((struct vop_vfree_args *))) nullop)
+#define procfs_truncate ((int (*) __P((struct vop_truncate_args *))) procfs_badop)
+#define procfs_update ((int (*) __P((struct vop_update_args *))) nullop)
+#endif /* KERNEL */