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Diffstat (limited to 'sys/miscfs/procfs/procfs.h')
| -rw-r--r-- | sys/miscfs/procfs/procfs.h | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/sys/miscfs/procfs/procfs.h b/sys/miscfs/procfs/procfs.h new file mode 100644 index 00000000000..37ef12e6f0d --- /dev/null +++ b/sys/miscfs/procfs/procfs.h @@ -0,0 +1,170 @@ +/* $NetBSD: procfs.h,v 1.14 1995/10/09 11:18:51 mycroft Exp $ */ + +/* + * 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 8.7 (Berkeley) 6/15/94 + */ + +/* + * The different types of node in a procfs filesystem + */ +typedef enum { + Proot, /* the filesystem root */ + Pcurproc, /* symbolic link for curproc */ + 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 UIO_MX 32 + +#define PROCFS_FILENO(pid, type) \ + (((type) < Pproc) ? \ + ((type) + 2) : \ + ((((pid)+1) << 4) + ((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; +}; + +int vfs_getuserstr __P((struct uio *, char *, int *)); +vfs_namemap_t *vfs_findname __P((vfs_namemap_t *, char *, int)); + +#define PFIND(pid) ((pid) ? pfind(pid) : &proc0) +int procfs_freevp __P((struct vnode *)); +int procfs_allocvp __P((struct mount *, struct vnode **, long, pfstype)); +struct vnode *procfs_findtextvp __P((struct proc *)); +int procfs_donote __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); +int procfs_doregs __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); +int procfs_dofpregs __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); +int procfs_domem __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); +int procfs_doctl __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); +int procfs_dostatus __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); + +/* functions to check whether or not files should be displayed */ +int procfs_validfile __P((struct proc *)); +int procfs_validfpregs __P((struct proc *)); +int procfs_validregs __P((struct proc *)); + +#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 *)); +int procfs_readlink __P((struct vop_readlink_args *)); +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_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 */ |