NetBSD/sys/miscfs/procfs/procfs.h

279 lines
8.4 KiB
C

/*
* 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.
*
* 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.
*
* From:
* Id: procfs.h,v 4.1 1993/12/17 10:47:45 jsp Rel
*
* $Id: procfs.h,v 1.2 1994/01/05 11:08:07 cgd 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 NDEQ(ndp, s, len) \
((ndp)->ni_namelen == (len) && \
(bcmp((s), (ndp)->ni_ptr, (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_short 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));
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));
extern int procfs_rw __P((struct vnode *, struct uio *, int, struct ucred *));
#define PROCFS_LOCKED 0x01
#define PROCFS_WANT 0x02
extern struct vnodeops procfs_vnodeops;
extern struct vfsops procfs_vfsops;
/*
* Prototypes for procfs vnode ops
*/
int procfs_badop(); /* varargs */
int procfs_rw __P((
struct vnode *vp,
struct uio *uio,
int ioflag,
struct ucred *cred));
int procfs_lookup __P((
struct vnode *vp,
struct nameidata *ndp,
struct proc *p));
#define procfs_create ((int (*) __P(( \
struct nameidata *ndp, \
struct vattr *vap, \
struct proc *p))) procfs_badop)
#define procfs_mknod ((int (*) __P(( \
struct nameidata *ndp, \
struct vattr *vap, \
struct ucred *cred, \
struct proc *p))) procfs_badop)
int procfs_open __P((
struct vnode *vp,
int mode,
struct ucred *cred,
struct proc *p));
int procfs_close __P((
struct vnode *vp,
int fflag,
struct ucred *cred,
struct proc *p));
int procfs_access __P((
struct vnode *vp,
int mode,
struct ucred *cred,
struct proc *p));
int procfs_getattr __P((
struct vnode *vp,
struct vattr *vap,
struct ucred *cred,
struct proc *p));
int procfs_setattr __P((
struct vnode *vp,
struct vattr *vap,
struct ucred *cred,
struct proc *p));
#define procfs_read procfs_rw
#define procfs_write procfs_rw
int procfs_ioctl __P((
struct vnode *vp,
int command,
caddr_t data,
int fflag,
struct ucred *cred,
struct proc *p));
#define procfs_select ((int (*) __P(( \
struct vnode *vp, \
int which, \
int fflags, \
struct ucred *cred, \
struct proc *p))) procfs_badop)
#define procfs_mmap ((int (*) __P(( \
struct vnode *vp, \
int fflags, \
struct ucred *cred, \
struct proc *p))) procfs_badop)
#define procfs_fsync ((int (*) __P(( \
struct vnode *vp, \
int fflags, \
struct ucred *cred, \
int waitfor, \
struct proc *p))) procfs_badop)
#define procfs_seek ((int (*) __P(( \
struct vnode *vp, \
off_t oldoff, \
off_t newoff, \
struct ucred *cred))) procfs_badop)
#define procfs_remove ((int (*) __P(( \
struct nameidata *ndp, \
struct proc *p))) procfs_badop)
#define procfs_link ((int (*) __P(( \
struct vnode *vp, \
struct nameidata *ndp, \
struct proc *p))) procfs_badop)
#define procfs_rename ((int (*) __P(( \
struct nameidata *fndp, \
struct nameidata *tdnp, \
struct proc *p))) procfs_badop)
#define procfs_mkdir ((int (*) __P(( \
struct nameidata *ndp, \
struct vattr *vap, \
struct proc *p))) procfs_badop)
#define procfs_rmdir ((int (*) __P(( \
struct nameidata *ndp, \
struct proc *p))) procfs_badop)
#define procfs_symlink ((int (*) __P(( \
struct nameidata *ndp, \
struct vattr *vap, \
char *target, \
struct proc *p))) procfs_badop)
int procfs_readdir __P((
struct vnode *vp,
struct uio *uio,
struct ucred *cred,
int *eofflagp,
u_int *cookies,
int ncookies));
#define procfs_readlink ((int (*) __P(( \
struct vnode *vp, \
struct uio *uio, \
struct ucred *cred))) procfs_badop)
int procfs_abortop __P((
struct nameidata *ndp));
int procfs_inactive __P((
struct vnode *vp,
struct proc *p));
int procfs_reclaim __P((
struct vnode *vp));
#define procfs_lock ((int (*) __P(( \
struct vnode *vp))) nullop)
#define procfs_unlock ((int (*) __P(( \
struct vnode *vp))) nullop)
int procfs_bmap __P((
struct vnode *vp,
daddr_t bn,
struct vnode **vpp,
daddr_t *bnp));
#define procfs_strategy ((int (*) __P(( \
struct buf *bp))) procfs_badop)
int procfs_print __P((
struct vnode *vp));
#define procfs_islocked ((int (*) __P(( \
struct vnode *vp))) nullop)
#define procfs_advlock ((int (*) __P(( \
struct vnode *vp, \
caddr_t id, \
int op, \
struct flock *fl, \
int flags))) procfs_badop)
#endif /* KERNEL */