06201558ed
Should anybody out there wonder about this vendetta against global variables, it is basically to make it more visible what our interfaces in the kernel really are. I'm almost convinced we should have a #define PUBLIC /* public interface */ and use it in the #includes...
189 lines
8.0 KiB
C
189 lines
8.0 KiB
C
/*
|
|
* Copyright (c) 1993 Jan-Simon Pendry
|
|
* Copyright (c) 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed 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. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. 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.
|
|
*
|
|
* @(#)procfs.h 8.6 (Berkeley) 2/3/94
|
|
*
|
|
* $Id: procfs.h,v 1.5 1995/05/25 01:35:22 davidg 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 */
|
|
Pfpregs, /* the process's FP 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))
|
|
|
|
#define KMEM_GROUP 2
|
|
/*
|
|
* 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;
|
|
struct fpreg;
|
|
|
|
#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 void procfs_fix_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_read_fpregs __P((struct proc *, struct fpreg *));
|
|
extern int procfs_write_fpregs __P((struct proc *, struct fpreg *));
|
|
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_dofpregs __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;
|
|
|
|
int procfs_root __P((struct mount *, struct vnode **));
|
|
|
|
/*
|
|
* Prototypes for procfs vnode ops
|
|
*/
|
|
static int procfs_badop(); /* varargs */
|
|
int procfs_rw __P((struct vop_read_args *));
|
|
static 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)
|
|
static int procfs_open __P((struct vop_open_args *));
|
|
static int Procfs_close __P((struct vop_close_args *));
|
|
static int procfs_access __P((struct vop_access_args *));
|
|
static int procfs_getattr __P((struct vop_getattr_args *));
|
|
static int procfs_setattr __P((struct vop_setattr_args *));
|
|
#define procfs_read procfs_rw
|
|
#define procfs_write procfs_rw
|
|
static 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)
|
|
static int procfs_readdir __P((struct vop_readdir_args *));
|
|
#define procfs_readlink ((int (*) __P((struct vop_readlink_args *))) procfs_badop)
|
|
static int procfs_abortop __P((struct vop_abortop_args *));
|
|
static int procfs_inactive __P((struct vop_inactive_args *));
|
|
static 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)
|
|
#define procfs_bmap ((int (*) __P((struct vop_bmap_args *))) procfs_badop)
|
|
#define procfs_strategy ((int (*) __P((struct vop_strategy_args *))) procfs_badop)
|
|
static 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_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 */
|