/* $NetBSD: linux32_misc.c,v 1.12 2008/06/18 22:58:21 njoly Exp $ */ /*- * Copyright (c) 1995, 1998, 1999 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Frank van der Linden and Eric Haszlakiewicz; by Jason R. Thorpe * of the Numerical Aerospace Simulation Facility, NASA Ames Research Center; * by Edgar Fu\ss, Mathematisches Institut der Uni Bonn. * * 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. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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. */ #include <sys/cdefs.h> __KERNEL_RCSID(0, "$NetBSD: linux32_misc.c,v 1.12 2008/06/18 22:58:21 njoly Exp $"); #if defined(_KERNEL_OPT) #include "opt_ptrace.h" #endif #include <sys/param.h> #include <sys/proc.h> #include <sys/time.h> #include <sys/types.h> #include <sys/malloc.h> #include <sys/fstypes.h> #include <sys/vfs_syscalls.h> #include <sys/ptrace.h> #include <compat/netbsd32/netbsd32.h> #include <compat/netbsd32/netbsd32_syscallargs.h> #include <compat/linux32/common/linux32_types.h> #include <compat/linux32/common/linux32_signal.h> #include <compat/linux32/linux32_syscallargs.h> #include <compat/linux/common/linux_ptrace.h> #include <compat/linux/common/linux_types.h> #include <compat/linux/common/linux_signal.h> #include <compat/linux/common/linux_misc.h> #include <compat/linux/common/linux_statfs.h> #include <compat/linux/linux_syscallargs.h> extern const struct linux_mnttypes linux_fstypes[]; extern const int linux_fstypes_cnt; /* * Implement the fs stat functions. Straightforward. */ int linux32_sys_statfs(struct lwp *l, const struct linux32_sys_statfs_args *uap, register_t *retval) { /* { syscallarg(const netbsd32_charp char) path; syscallarg(linux32_statfsp) sp; } */ struct statvfs *sb; struct linux_statfs ltmp; int error; sb = STATVFSBUF_GET(); error = do_sys_pstatvfs(l, SCARG_P32(uap, path), ST_WAIT, sb); if (error == 0) { bsd_to_linux_statfs(sb, <mp); error = copyout(<mp, SCARG_P32(uap, sp), sizeof ltmp); } STATVFSBUF_PUT(sb); return error; } extern const int linux_ptrace_request_map[]; int linux32_sys_ptrace(struct lwp *l, const struct linux32_sys_ptrace_args *uap, register_t *retval) { /* { i386, m68k, powerpc: T=int alpha, amd64: T=long syscallarg(T) request; syscallarg(T) pid; syscallarg(T) addr; syscallarg(T) data; } */ #if defined(PTRACE) || defined(_LKM) const int *ptr; int request; int error; ptr = linux_ptrace_request_map; request = SCARG(uap, request); while (*ptr != -1) if (*ptr++ == request) { struct sys_ptrace_args pta; SCARG(&pta, req) = *ptr; SCARG(&pta, pid) = SCARG(uap, pid); SCARG(&pta, addr) = NETBSD32IPTR64(SCARG(uap, addr)); SCARG(&pta, data) = SCARG(uap, data); /* * Linux ptrace(PTRACE_CONT, pid, 0, 0) means actually * to continue where the process left off previously. * The same thing is achieved by addr == (void *) 1 * on NetBSD, so rewrite 'addr' appropriately. */ if (request == LINUX_PTRACE_CONT && SCARG(uap, addr)==0) SCARG(&pta, addr) = (void *) 1; error = sys_ptrace(l, &pta, retval); if (error) return error; switch (request) { case LINUX_PTRACE_PEEKTEXT: case LINUX_PTRACE_PEEKDATA: error = copyout (retval, NETBSD32IPTR64(SCARG(uap, data)), sizeof *retval); *retval = SCARG(uap, data); break; default: break; } return error; } else ptr++; return EIO; #else return ENOSYS; #endif /* PTRACE || _LKM */ }