/* * 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 8.9 (Berkeley) 5/14/95 * * From: * $Id: procfs.h,v 1.24 1999/04/30 13:04:20 phk 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 */ Pmap, /* memory map */ Ptype, /* executable type */ Pcmdline, /* command line */ Prlimit /* resource limits */ } 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 */ pid_t pfs_lockowner; /* pfs lock owner */ }; #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 /* * Check to see whether access to target process is allowed * Evaluates to 1 if access is allowed. */ #define CHECKIO(p1, p2) \ (PRISON_CHECK(p1, p2) && \ ((((p1)->p_cred->pc_ucred->cr_uid == (p2)->p_cred->p_ruid) && \ ((p1)->p_cred->p_ruid == (p2)->p_cred->p_ruid) && \ ((p1)->p_cred->p_svuid == (p2)->p_cred->p_ruid) && \ ((p2)->p_flag & P_SUGID) == 0) || \ (suser_xxx(0, (p1), PRISON_ROOT) == 0))) /* * Format of a directory entry in /proc, ... * This must map onto struct dirent (see ) */ #define PROCFS_NAMELEN 8 struct pfsdent { u_int32_t d_fileno; u_int16_t d_reclen; u_int8_t d_type; u_int8_t 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) void procfs_exit __P((struct proc *)); 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 *)); 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)); int procfs_domap __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); int procfs_dotype __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); int procfs_docmdline __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); int procfs_dorlimit __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); /* Return 1 if process has special kernel digging privileges */ int procfs_kmemaccess __P((struct proc *)); /* 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 *)); int procfs_validmap __P((struct proc *)); int procfs_validtype __P((struct proc *)); #define PROCFS_LOCKED 0x01 #define PROCFS_WANT 0x02 extern vop_t **procfs_vnodeop_p; int procfs_root __P((struct mount *, struct vnode **)); int procfs_rw __P((struct vop_read_args *)); #endif /* KERNEL */