/* * 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 ) */ #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)); /* */ 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 */