/* * 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. 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: * $FreeBSD: src/sys/miscfs/procfs/procfs.h,v 1.32.2.3 2002/01/22 17:22:59 nectar Exp $ * $DragonFly: src/sys/vfs/procfs/procfs.h,v 1.8 2007/02/19 01:14:24 corecode 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 */ Pdbregs, /* the process's debug 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 */ struct lock pfs_lock; /* pfs locked */ }; #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 */ #define PROCFS_NAMELEN 8 /* max length of a filename component */ /* * Kernel stuff follows */ #ifdef _KERNEL #define CNEQ(cnp, s, len) \ ((cnp)->cn_namelen == (len) && \ (bcmp((s), (cnp)->cn_nameptr, (len)) == 0)) #define PROCFS_FILENO(pid, type) \ (((type) < Pproc) ? \ ((type) + 2) : \ ((((pid)+1) << 4) + ((int) (type)))) /* XXX: Is PRIV_DEBUG_UNPRIV correct? */ #define CHECKIO(p1, p2) \ ((((p1)->p_ucred->cr_uid == (p2)->p_ucred->cr_ruid) && \ ((p1)->p_ucred->cr_ruid == (p2)->p_ucred->cr_ruid) && \ ((p1)->p_ucred->cr_svuid == (p2)->p_ucred->cr_ruid) && \ ((p2)->p_flags & (P_SUGID|P_INEXEC)) == 0) || \ (caps_priv_check((p1)->p_ucred, SYSCAP_NODEBUG_UNPRIV) == 0)) /* * 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); /* */ struct reg; struct fpreg; struct dbreg; void procfs_exit (struct thread *); int procfs_freevp (struct vnode *); int procfs_allocvp (struct mount *, struct vnode **, long, pfstype); struct vnode *procfs_findtextvp (struct proc *); int procfs_sstep (struct lwp *); int procfs_read_regs (struct lwp *, struct reg *); int procfs_write_regs (struct lwp *, struct reg *); int procfs_read_fpregs (struct lwp *, struct fpreg *); int procfs_write_fpregs (struct lwp *, struct fpreg *); int procfs_read_dbregs (struct lwp *, struct dbreg *); int procfs_write_dbregs (struct lwp *, struct dbreg *); int procfs_donote (struct proc *, struct lwp *, struct pfsnode *pfsp, struct uio *uio); int procfs_doregs (struct proc *, struct lwp *, struct pfsnode *pfsp, struct uio *uio); int procfs_dofpregs (struct proc *, struct lwp *, struct pfsnode *pfsp, struct uio *uio); int procfs_dodbregs (struct proc *, struct lwp *, struct pfsnode *pfsp, struct uio *uio); int procfs_domem (struct proc *, struct lwp *, struct pfsnode *pfsp, struct uio *uio); int procfs_doctl (struct proc *, struct lwp *, struct pfsnode *pfsp, struct uio *uio); int procfs_dostatus (struct proc *, struct lwp *, struct pfsnode *pfsp, struct uio *uio); int procfs_domap (struct proc *, struct lwp *, struct pfsnode *pfsp, struct uio *uio); int procfs_dotype (struct proc *, struct lwp *, struct pfsnode *pfsp, struct uio *uio); int procfs_docmdline (struct proc *, struct lwp *, struct pfsnode *pfsp, struct uio *uio); int procfs_dorlimit (struct proc *, struct lwp *, struct pfsnode *pfsp, struct uio *uio); /* functions to check whether or not files should be displayed */ int procfs_validfile (struct lwp *); int procfs_validfpregs (struct lwp *); int procfs_validregs (struct lwp *); int procfs_validdbregs (struct lwp *); int procfs_validmap (struct lwp *); int procfs_validtype (struct lwp *); struct proc *pfs_pfind(pid_t); struct proc *pfs_zpfind(pid_t); void pfs_pdone(struct proc *); #define PFS_DEAD 0x80000000 /* or'd with pid */ int procfs_root (struct mount *, struct vnode **); int procfs_rw (struct vop_read_args *); #endif /* _KERNEL */