187 lines
7.8 KiB
C
187 lines
7.8 KiB
C
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/*
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* Copyright (c) 1993 Jan-Simon Pendry
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* Copyright (c) 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Jan-Simon Pendry.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)procfs.h 8.6 (Berkeley) 2/3/94
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*
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* From:
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* $Id: procfs.h,v 3.2 1993/12/15 09:40:17 jsp Exp $
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*/
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/*
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* The different types of node in a procfs filesystem
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*/
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typedef enum {
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Proot, /* the filesystem root */
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Pproc, /* a process-specific sub-directory */
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Pfile, /* the executable file */
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Pmem, /* the process's memory image */
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Pregs, /* the process's register set */
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Pfpregs, /* the process's FP register set */
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Pctl, /* process control */
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Pstatus, /* process status */
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Pnote, /* process notifier */
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Pnotepg /* process group notifier */
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} pfstype;
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/*
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* control data for the proc file system.
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*/
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struct pfsnode {
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struct pfsnode *pfs_next; /* next on list */
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struct vnode *pfs_vnode; /* vnode associated with this pfsnode */
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pfstype pfs_type; /* type of procfs node */
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pid_t pfs_pid; /* associated process */
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u_short pfs_mode; /* mode bits for stat() */
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u_long pfs_flags; /* open flags */
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u_long pfs_fileno; /* unique file id */
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};
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#define PROCFS_NOTELEN 64 /* max length of a note (/proc/$pid/note) */
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#define PROCFS_CTLLEN 8 /* max length of a ctl msg (/proc/$pid/ctl */
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/*
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* Kernel stuff follows
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*/
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#ifdef KERNEL
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#define CNEQ(cnp, s, len) \
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((cnp)->cn_namelen == (len) && \
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(bcmp((s), (cnp)->cn_nameptr, (len)) == 0))
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/*
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* Format of a directory entry in /proc, ...
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* This must map onto struct dirent (see <dirent.h>)
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*/
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#define PROCFS_NAMELEN 8
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struct pfsdent {
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u_long d_fileno;
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u_short d_reclen;
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u_char d_type;
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u_char d_namlen;
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char d_name[PROCFS_NAMELEN];
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};
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#define UIO_MX sizeof(struct pfsdent)
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#define PROCFS_FILENO(pid, type) \
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(((type) == Proot) ? \
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2 : \
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((((pid)+1) << 3) + ((int) (type))))
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/*
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* Convert between pfsnode vnode
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*/
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#define VTOPFS(vp) ((struct pfsnode *)(vp)->v_data)
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#define PFSTOV(pfs) ((pfs)->pfs_vnode)
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typedef struct vfs_namemap vfs_namemap_t;
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struct vfs_namemap {
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const char *nm_name;
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int nm_val;
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};
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extern int vfs_getuserstr __P((struct uio *, char *, int *));
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extern vfs_namemap_t *vfs_findname __P((vfs_namemap_t *, char *, int));
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/* <machine/reg.h> */
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struct reg;
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struct fpreg;
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#define PFIND(pid) ((pid) ? pfind(pid) : &proc0)
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extern int procfs_freevp __P((struct vnode *));
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extern int procfs_allocvp __P((struct mount *, struct vnode **, long, pfstype));
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extern struct vnode *procfs_findtextvp __P((struct proc *));
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extern int procfs_sstep __P((struct proc *));
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extern void procfs_fix_sstep __P((struct proc *));
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extern int procfs_read_regs __P((struct proc *, struct reg *));
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extern int procfs_write_regs __P((struct proc *, struct reg *));
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extern int procfs_read_fpregs __P((struct proc *, struct fpreg *));
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extern int procfs_write_fpregs __P((struct proc *, struct fpreg *));
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extern int procfs_donote __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
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extern int procfs_doregs __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
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extern int procfs_dofpregs __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
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extern int procfs_domem __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
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extern int procfs_doctl __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
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extern int procfs_dostatus __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
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#define PROCFS_LOCKED 0x01
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#define PROCFS_WANT 0x02
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extern int (**procfs_vnodeop_p)();
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extern struct vfsops procfs_vfsops;
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/*
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* Prototypes for procfs vnode ops
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*/
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int procfs_badop(); /* varargs */
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int procfs_rw __P((struct vop_read_args *));
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int procfs_lookup __P((struct vop_lookup_args *));
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#define procfs_create ((int (*) __P((struct vop_create_args *))) procfs_badop)
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#define procfs_mknod ((int (*) __P((struct vop_mknod_args *))) procfs_badop)
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int procfs_open __P((struct vop_open_args *));
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int procfs_close __P((struct vop_close_args *));
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int procfs_access __P((struct vop_access_args *));
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int procfs_getattr __P((struct vop_getattr_args *));
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int procfs_setattr __P((struct vop_setattr_args *));
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#define procfs_read procfs_rw
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#define procfs_write procfs_rw
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int procfs_ioctl __P((struct vop_ioctl_args *));
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#define procfs_select ((int (*) __P((struct vop_select_args *))) procfs_badop)
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#define procfs_mmap ((int (*) __P((struct vop_mmap_args *))) procfs_badop)
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#define procfs_fsync ((int (*) __P((struct vop_fsync_args *))) procfs_badop)
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#define procfs_seek ((int (*) __P((struct vop_seek_args *))) procfs_badop)
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#define procfs_remove ((int (*) __P((struct vop_remove_args *))) procfs_badop)
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#define procfs_link ((int (*) __P((struct vop_link_args *))) procfs_badop)
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#define procfs_rename ((int (*) __P((struct vop_rename_args *))) procfs_badop)
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#define procfs_mkdir ((int (*) __P((struct vop_mkdir_args *))) procfs_badop)
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#define procfs_rmdir ((int (*) __P((struct vop_rmdir_args *))) procfs_badop)
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#define procfs_symlink ((int (*) __P((struct vop_symlink_args *))) procfs_badop)
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int procfs_readdir __P((struct vop_readdir_args *));
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#define procfs_readlink ((int (*) __P((struct vop_readlink_args *))) procfs_badop)
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int procfs_abortop __P((struct vop_abortop_args *));
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int procfs_inactive __P((struct vop_inactive_args *));
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int procfs_reclaim __P((struct vop_reclaim_args *));
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#define procfs_lock ((int (*) __P((struct vop_lock_args *))) nullop)
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#define procfs_unlock ((int (*) __P((struct vop_unlock_args *))) nullop)
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int procfs_bmap __P((struct vop_bmap_args *));
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#define procfs_strategy ((int (*) __P((struct vop_strategy_args *))) procfs_badop)
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int procfs_print __P((struct vop_print_args *));
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#define procfs_islocked ((int (*) __P((struct vop_islocked_args *))) nullop)
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#define procfs_advlock ((int (*) __P((struct vop_advlock_args *))) procfs_badop)
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#define procfs_blkatoff ((int (*) __P((struct vop_blkatoff_args *))) procfs_badop)
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#define procfs_valloc ((int (*) __P((struct vop_valloc_args *))) procfs_badop)
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#define procfs_vfree ((int (*) __P((struct vop_vfree_args *))) nullop)
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#define procfs_truncate ((int (*) __P((struct vop_truncate_args *))) procfs_badop)
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#define procfs_update ((int (*) __P((struct vop_update_args *))) nullop)
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#endif /* KERNEL */
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