/* $OpenBSD: procfs.h,v 1.17 2003/01/31 20:41:29 art Exp $ */ /* $NetBSD: procfs.h,v 1.17 1996/02/12 15:01:41 christos 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 */ Pself, /* like curproc, but this is the Linux name */ 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 */ Pcmdline, /* process command line args */ Pmeminfo, /* system memory info (if -o linux) */ Pcpuinfo /* CPU info (if -o linux) */ } pfstype; /* * control data for the proc file system. */ struct pfsnode { TAILQ_ENTRY(pfsnode) list; struct vnode *pfs_vnode; /* vnode associated with this pfsnode */ pfstype pfs_type; /* type of procfs node */ pid_t pfs_pid; /* associated process */ mode_t 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 */ struct procfs_args { int version; int flags; }; #define PROCFS_ARGSVERSION 1 #define PROCFSMNT_LINUXCOMPAT 0x01 /* * 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) + 4) : \ ((((pid)+1) << 5) + ((int) (type)))) struct procfsmount { void *pmnt_exechook; int pmnt_flags; }; #define VFSTOPROC(mp) ((struct procfsmount *)(mp)->mnt_data) /* * 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(struct uio *, char *, int *); vfs_namemap_t *vfs_findname(vfs_namemap_t *, char *, int); int procfs_allocvp(struct mount *, struct vnode **, long, pfstype); int procfs_checkioperm(struct proc *p, struct proc *t); int procfs_doctl(struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio); int procfs_dofpregs(struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio); int procfs_domem(struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio); int procfs_donote(struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio); int procfs_doregs(struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio); int procfs_dostatus(struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio); int procfs_docmdline(struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio); int procfs_domeminfo(struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio); int procfs_docpuinfo(struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio); int procfs_domap(struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio, int); int procfs_freevp(struct vnode *); int procfs_getcpuinfstr(char *, int *); /* functions to check whether or not files should be displayed */ int procfs_validfile(struct proc *, struct mount *); int procfs_validfpregs(struct proc *, struct mount *); int procfs_validregs(struct proc *, struct mount *); int procfs_validmap(struct proc *, struct mount *); int procfs_rw(void *); #define PROCFS_LOCKED 0x01 #define PROCFS_WANT 0x02 extern int (**procfs_vnodeop_p)(void *); extern struct vfsops procfs_vfsops; struct vfsconf; int procfs_init(struct vfsconf *); int procfs_root(struct mount *, struct vnode **); #endif /* _KERNEL */