/* * 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. * * %sccs.include.redist.c% * * @(#)procfs.h 8.9 (Berkeley) 05/14/95 * * From: * $Id: procfs.h,v 3.2 1993/12/15 09:40:17 jsp Exp $ */ /* * 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)) /* * 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) < 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)); /* */ struct reg; struct fpreg; #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_sstep __P((struct proc *, int)); void procfs_fix_sstep __P((struct proc *)); int procfs_read_regs __P((struct proc *, struct reg *)); int procfs_write_regs __P((struct proc *, struct reg *)); int procfs_read_fpregs __P((struct proc *, struct fpreg *)); int procfs_write_fpregs __P((struct proc *, struct fpreg *)); 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_revoke vop_revoke #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 *)))vop_nolock) #define procfs_unlock ((int (*) __P((struct vop_unlock_args *)))vop_nounlock) 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 *)))vop_noislocked) #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 */