4f2dba52bb
svr4 code: this code would call centralized sysctl code that does these checks also. MFC after: 1 week Obtained from: TrustedBSD Project Sponsored by: nCircle Network Security, Inc.
684 lines
14 KiB
C
684 lines
14 KiB
C
/*-
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* Copyright (c) 1998 Mark Newton
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* Copyright (c) 1994 Christos Zoulas
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/proc.h>
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#include <sys/stat.h>
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#include <sys/filedesc.h>
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#include <sys/jail.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/unistd.h>
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#include <sys/time.h>
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#include <sys/syscallsubr.h>
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#include <sys/sysctl.h>
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#include <sys/sysproto.h>
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#include <sys/un.h>
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#include <vm/vm.h>
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#include <netinet/in.h>
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#include <compat/svr4/svr4.h>
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#include <compat/svr4/svr4_types.h>
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#include <compat/svr4/svr4_signal.h>
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#include <compat/svr4/svr4_proto.h>
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#include <compat/svr4/svr4_util.h>
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#include <compat/svr4/svr4_stat.h>
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#include <compat/svr4/svr4_ustat.h>
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#include <compat/svr4/svr4_utsname.h>
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#include <compat/svr4/svr4_systeminfo.h>
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#include <compat/svr4/svr4_socket.h>
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#include <compat/svr4/svr4_time.h>
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#if defined(NOTYET)
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#include "svr4_fuser.h"
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#endif
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#ifdef sparc
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/*
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* Solaris-2.4 on the sparc has the old stat call using the new
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* stat data structure...
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*/
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# define SVR4_NO_OSTAT
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#endif
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struct svr4_ustat_args {
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svr4_dev_t dev;
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struct svr4_ustat * name;
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};
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static void bsd_to_svr4_xstat(struct stat *, struct svr4_xstat *);
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static void bsd_to_svr4_stat64(struct stat *, struct svr4_stat64 *);
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int svr4_ustat(struct thread *, struct svr4_ustat_args *);
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static int svr4_to_bsd_pathconf(int);
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/*
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* SVR4 uses named pipes as named sockets, so we tell programs
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* that sockets are named pipes with mode 0
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*/
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#define BSD_TO_SVR4_MODE(mode) (S_ISSOCK(mode) ? S_IFIFO : (mode))
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#ifndef SVR4_NO_OSTAT
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static void bsd_to_svr4_stat(struct stat *, struct svr4_stat *);
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static void
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bsd_to_svr4_stat(st, st4)
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struct stat *st;
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struct svr4_stat *st4;
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{
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memset(st4, 0, sizeof(*st4));
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st4->st_dev = bsd_to_svr4_odev_t(st->st_dev);
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st4->st_ino = st->st_ino;
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st4->st_mode = BSD_TO_SVR4_MODE(st->st_mode);
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st4->st_nlink = st->st_nlink;
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st4->st_uid = st->st_uid;
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st4->st_gid = st->st_gid;
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st4->st_rdev = bsd_to_svr4_odev_t(st->st_rdev);
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st4->st_size = st->st_size;
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st4->st_atim = st->st_atimespec.tv_sec;
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st4->st_mtim = st->st_mtimespec.tv_sec;
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st4->st_ctim = st->st_ctimespec.tv_sec;
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}
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#endif
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static void
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bsd_to_svr4_xstat(st, st4)
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struct stat *st;
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struct svr4_xstat *st4;
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{
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memset(st4, 0, sizeof(*st4));
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st4->st_dev = bsd_to_svr4_dev_t(st->st_dev);
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st4->st_ino = st->st_ino;
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st4->st_mode = BSD_TO_SVR4_MODE(st->st_mode);
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st4->st_nlink = st->st_nlink;
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st4->st_uid = st->st_uid;
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st4->st_gid = st->st_gid;
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st4->st_rdev = bsd_to_svr4_dev_t(st->st_rdev);
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st4->st_size = st->st_size;
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st4->st_atim = st->st_atimespec;
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st4->st_mtim = st->st_mtimespec;
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st4->st_ctim = st->st_ctimespec;
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st4->st_blksize = st->st_blksize;
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st4->st_blocks = st->st_blocks;
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strcpy(st4->st_fstype, "unknown");
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}
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static void
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bsd_to_svr4_stat64(st, st4)
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struct stat *st;
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struct svr4_stat64 *st4;
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{
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memset(st4, 0, sizeof(*st4));
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st4->st_dev = bsd_to_svr4_dev_t(st->st_dev);
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st4->st_ino = st->st_ino;
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st4->st_mode = BSD_TO_SVR4_MODE(st->st_mode);
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st4->st_nlink = st->st_nlink;
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st4->st_uid = st->st_uid;
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st4->st_gid = st->st_gid;
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st4->st_rdev = bsd_to_svr4_dev_t(st->st_rdev);
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st4->st_size = st->st_size;
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st4->st_atim = st->st_atimespec;
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st4->st_mtim = st->st_mtimespec;
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st4->st_ctim = st->st_ctimespec;
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st4->st_blksize = st->st_blksize;
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st4->st_blocks = st->st_blocks;
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strcpy(st4->st_fstype, "unknown");
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}
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int
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svr4_sys_stat(td, uap)
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struct thread *td;
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struct svr4_sys_stat_args *uap;
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{
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struct svr4_stat svr4_st;
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struct stat st;
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char *path;
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int error;
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CHECKALTEXIST(td, uap->path, &path);
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error = kern_stat(td, path, UIO_SYSSPACE, &st);
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free(path, M_TEMP);
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if (error)
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return (error);
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bsd_to_svr4_stat(&st, &svr4_st);
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if (S_ISSOCK(st.st_mode))
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(void) svr4_add_socket(td, uap->path, &st);
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return (copyout(&svr4_st, uap->ub, sizeof svr4_st));
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}
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int
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svr4_sys_lstat(td, uap)
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register struct thread *td;
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struct svr4_sys_lstat_args *uap;
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{
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struct svr4_stat svr4_st;
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struct stat st;
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char *path;
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int error;
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CHECKALTEXIST(td, uap->path, &path);
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error = kern_lstat(td, path, UIO_SYSSPACE, &st);
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free(path, M_TEMP);
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if (error)
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return (error);
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bsd_to_svr4_stat(&st, &svr4_st);
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if (S_ISSOCK(st.st_mode))
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(void) svr4_add_socket(td, uap->path, &st);
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return (copyout(&svr4_st, uap->ub, sizeof svr4_st));
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}
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int
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svr4_sys_fstat(td, uap)
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register struct thread *td;
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struct svr4_sys_fstat_args *uap;
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{
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struct svr4_stat svr4_st;
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struct stat st;
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int error;
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error = kern_fstat(td, uap->fd, &st);
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if (error)
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return (error);
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bsd_to_svr4_stat(&st, &svr4_st);
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return (copyout(&svr4_st, uap->sb, sizeof svr4_st));
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}
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int
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svr4_sys_xstat(td, uap)
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register struct thread *td;
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struct svr4_sys_xstat_args *uap;
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{
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struct svr4_xstat svr4_st;
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struct stat st;
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char *path;
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int error;
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CHECKALTEXIST(td, uap->path, &path);
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error = kern_stat(td, path, UIO_SYSSPACE, &st);
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free(path, M_TEMP);
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if (error)
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return (error);
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bsd_to_svr4_xstat(&st, &svr4_st);
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#if defined(SOCKET_NOTYET)
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if (S_ISSOCK(st.st_mode))
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(void) svr4_add_socket(td, uap->path, &st);
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#endif
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return (copyout(&svr4_st, uap->ub, sizeof svr4_st));
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}
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int
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svr4_sys_lxstat(td, uap)
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register struct thread *td;
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struct svr4_sys_lxstat_args *uap;
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{
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struct svr4_xstat svr4_st;
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struct stat st;
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char *path;
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int error;
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CHECKALTEXIST(td, uap->path, &path);
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error = kern_lstat(td, path, UIO_SYSSPACE, &st);
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free(path, M_TEMP);
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if (error)
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return (error);
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bsd_to_svr4_xstat(&st, &svr4_st);
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#if defined(SOCKET_NOTYET)
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if (S_ISSOCK(st.st_mode))
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(void) svr4_add_socket(td, uap->path, &st);
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#endif
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return (copyout(&svr4_st, uap->ub, sizeof svr4_st));
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}
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int
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svr4_sys_fxstat(td, uap)
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register struct thread *td;
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struct svr4_sys_fxstat_args *uap;
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{
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struct svr4_xstat svr4_st;
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struct stat st;
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int error;
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error = kern_fstat(td, uap->fd, &st);
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if (error)
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return (error);
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bsd_to_svr4_xstat(&st, &svr4_st);
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return (copyout(&svr4_st, uap->sb, sizeof svr4_st));
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}
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int
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svr4_sys_stat64(td, uap)
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register struct thread *td;
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struct svr4_sys_stat64_args *uap;
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{
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struct svr4_stat64 svr4_st;
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struct stat st;
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char *path;
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int error;
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CHECKALTEXIST(td, uap->path, &path);
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error = kern_stat(td, path, UIO_SYSSPACE, &st);
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free(path, M_TEMP);
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if (error)
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return (error);
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bsd_to_svr4_stat64(&st, &svr4_st);
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if (S_ISSOCK(st.st_mode))
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(void) svr4_add_socket(td, uap->path, &st);
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return (copyout(&svr4_st, uap->sb, sizeof svr4_st));
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}
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int
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svr4_sys_lstat64(td, uap)
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register struct thread *td;
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struct svr4_sys_lstat64_args *uap;
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{
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struct svr4_stat64 svr4_st;
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struct stat st;
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char *path;
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int error;
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CHECKALTEXIST(td, uap->path, &path);
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error = kern_lstat(td, path, UIO_SYSSPACE, &st);
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free(path, M_TEMP);
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if (error)
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return (error);
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bsd_to_svr4_stat64(&st, &svr4_st);
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if (S_ISSOCK(st.st_mode))
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(void) svr4_add_socket(td, uap->path, &st);
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return (copyout(&svr4_st, uap->sb, sizeof svr4_st));
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}
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int
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svr4_sys_fstat64(td, uap)
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register struct thread *td;
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struct svr4_sys_fstat64_args *uap;
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{
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struct svr4_stat64 svr4_st;
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struct stat st;
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int error;
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error = kern_fstat(td, uap->fd, &st);
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if (error)
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return (error);
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bsd_to_svr4_stat64(&st, &svr4_st);
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return (copyout(&svr4_st, uap->sb, sizeof svr4_st));
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}
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int
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svr4_ustat(td, uap)
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register struct thread *td;
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struct svr4_ustat_args *uap;
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{
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struct svr4_ustat us;
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int error;
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memset(&us, 0, sizeof us);
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/*
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* XXX: should set f_tfree and f_tinode at least
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* How do we translate dev -> fstat? (and then to svr4_ustat)
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*/
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if ((error = copyout(&us, uap->name, sizeof us)) != 0)
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return (error);
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return 0;
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}
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/*extern char ostype[], hostname[], osrelease[], version[], machine[];*/
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int
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svr4_sys_uname(td, uap)
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register struct thread *td;
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struct svr4_sys_uname_args *uap;
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{
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struct svr4_utsname sut;
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memset(&sut, 0, sizeof(sut));
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strlcpy(sut.sysname, ostype, sizeof(sut.sysname));
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getcredhostname(td->td_ucred, sut.nodename, sizeof(sut.nodename));
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strlcpy(sut.release, osrelease, sizeof(sut.release));
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strlcpy(sut.version, version, sizeof(sut.version));
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strlcpy(sut.machine, machine, sizeof(sut.machine));
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return copyout((caddr_t) &sut, (caddr_t) uap->name,
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sizeof(struct svr4_utsname));
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}
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int
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svr4_sys_systeminfo(td, uap)
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struct thread *td;
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struct svr4_sys_systeminfo_args *uap;
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{
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char *str = NULL;
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int error = 0;
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register_t *retval = td->td_retval;
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size_t len = 0;
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char buf[1]; /* XXX NetBSD uses 256, but that seems
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like awfully excessive kstack usage
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for an empty string... */
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u_int rlen = uap->len;
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switch (uap->what) {
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case SVR4_SI_SYSNAME:
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str = ostype;
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break;
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case SVR4_SI_HOSTNAME:
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str = hostname;
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break;
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case SVR4_SI_RELEASE:
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str = osrelease;
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break;
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case SVR4_SI_VERSION:
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str = version;
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break;
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case SVR4_SI_MACHINE:
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str = machine;
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break;
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case SVR4_SI_ARCHITECTURE:
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str = machine;
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break;
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case SVR4_SI_HW_SERIAL:
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str = "0";
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break;
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case SVR4_SI_HW_PROVIDER:
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str = ostype;
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break;
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case SVR4_SI_SRPC_DOMAIN:
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str = domainname;
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break;
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case SVR4_SI_PLATFORM:
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#ifdef __i386__
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str = "i86pc";
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#else
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str = "unknown";
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#endif
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break;
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case SVR4_SI_KERB_REALM:
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str = "unsupported";
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break;
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#if defined(WHY_DOES_AN_EMULATOR_WANT_TO_SET_HOSTNAMES)
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case SVR4_SI_SET_HOSTNAME:
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name = KERN_HOSTNAME;
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return kern_sysctl(&name, 1, 0, 0, uap->buf, rlen, td);
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case SVR4_SI_SET_SRPC_DOMAIN:
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name = KERN_NISDOMAINNAME;
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return kern_sysctl(&name, 1, 0, 0, uap->buf, rlen, td);
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#else
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case SVR4_SI_SET_HOSTNAME:
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case SVR4_SI_SET_SRPC_DOMAIN:
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/* FALLTHROUGH */
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#endif
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case SVR4_SI_SET_KERB_REALM:
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return 0;
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default:
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DPRINTF(("Bad systeminfo command %d\n", uap->what));
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return ENOSYS;
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}
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if (str) {
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len = strlen(str) + 1;
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if (len > rlen)
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len = rlen;
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if (uap->buf) {
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error = copyout(str, uap->buf, len);
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if (error)
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return error;
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/* make sure we are NULL terminated */
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buf[0] = '\0';
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error = copyout(buf, &(uap->buf[len - 1]), 1);
|
|
}
|
|
else
|
|
error = 0;
|
|
}
|
|
/* XXX NetBSD has hostname setting stuff here. Why would an emulator
|
|
want to do that? */
|
|
|
|
*retval = len;
|
|
return error;
|
|
}
|
|
|
|
int
|
|
svr4_sys_utssys(td, uap)
|
|
register struct thread *td;
|
|
struct svr4_sys_utssys_args *uap;
|
|
{
|
|
switch (uap->sel) {
|
|
case 0: /* uname(2) */
|
|
{
|
|
struct svr4_sys_uname_args ua;
|
|
ua.name = uap->a1;
|
|
return svr4_sys_uname(td, &ua);
|
|
}
|
|
|
|
case 2: /* ustat(2) */
|
|
{
|
|
struct svr4_ustat_args ua;
|
|
ua.dev = (svr4_dev_t) uap->a2;
|
|
ua.name = uap->a1;
|
|
return svr4_ustat(td, &ua);
|
|
}
|
|
|
|
case 3: /* fusers(2) */
|
|
return ENOSYS;
|
|
|
|
default:
|
|
return ENOSYS;
|
|
}
|
|
return ENOSYS;
|
|
}
|
|
|
|
|
|
int
|
|
svr4_sys_utime(td, uap)
|
|
register struct thread *td;
|
|
struct svr4_sys_utime_args *uap;
|
|
{
|
|
struct svr4_utimbuf ub;
|
|
struct timeval tbuf[2], *tp;
|
|
char *path;
|
|
int error;
|
|
|
|
if (uap->ubuf != NULL) {
|
|
error = copyin(uap->ubuf, &ub, sizeof(ub));
|
|
if (error)
|
|
return (error);
|
|
tbuf[0].tv_sec = ub.actime;
|
|
tbuf[0].tv_usec = 0;
|
|
tbuf[1].tv_sec = ub.modtime;
|
|
tbuf[1].tv_usec = 0;
|
|
tp = tbuf;
|
|
} else
|
|
tp = NULL;
|
|
|
|
CHECKALTEXIST(td, uap->path, &path);
|
|
error = kern_utimes(td, path, UIO_SYSSPACE, tp, UIO_SYSSPACE);
|
|
free(path, M_TEMP);
|
|
return (error);
|
|
}
|
|
|
|
|
|
int
|
|
svr4_sys_utimes(td, uap)
|
|
register struct thread *td;
|
|
struct svr4_sys_utimes_args *uap;
|
|
{
|
|
char *path;
|
|
int error;
|
|
|
|
CHECKALTEXIST(td, uap->path, &path);
|
|
error = kern_utimes(td, path, UIO_SYSSPACE, uap->tptr, UIO_USERSPACE);
|
|
free(path, M_TEMP);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
svr4_to_bsd_pathconf(name)
|
|
int name;
|
|
{
|
|
switch (name) {
|
|
case SVR4_PC_LINK_MAX:
|
|
return _PC_LINK_MAX;
|
|
|
|
case SVR4_PC_MAX_CANON:
|
|
return _PC_MAX_CANON;
|
|
|
|
case SVR4_PC_MAX_INPUT:
|
|
return _PC_MAX_INPUT;
|
|
|
|
case SVR4_PC_NAME_MAX:
|
|
return _PC_NAME_MAX;
|
|
|
|
case SVR4_PC_PATH_MAX:
|
|
return _PC_PATH_MAX;
|
|
|
|
case SVR4_PC_PIPE_BUF:
|
|
return _PC_PIPE_BUF;
|
|
|
|
case SVR4_PC_NO_TRUNC:
|
|
return _PC_NO_TRUNC;
|
|
|
|
case SVR4_PC_VDISABLE:
|
|
return _PC_VDISABLE;
|
|
|
|
case SVR4_PC_CHOWN_RESTRICTED:
|
|
return _PC_CHOWN_RESTRICTED;
|
|
case SVR4_PC_SYNC_IO:
|
|
#if defined(_PC_SYNC_IO)
|
|
return _PC_SYNC_IO;
|
|
#else
|
|
return 0;
|
|
#endif
|
|
case SVR4_PC_ASYNC_IO:
|
|
case SVR4_PC_PRIO_IO:
|
|
/* Not supported */
|
|
return 0;
|
|
|
|
default:
|
|
/* Invalid */
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
|
|
int
|
|
svr4_sys_pathconf(td, uap)
|
|
register struct thread *td;
|
|
struct svr4_sys_pathconf_args *uap;
|
|
{
|
|
char *path;
|
|
int error, name;
|
|
|
|
name = svr4_to_bsd_pathconf(uap->name);
|
|
|
|
switch (name) {
|
|
case -1:
|
|
td->td_retval[0] = -1;
|
|
return (EINVAL);
|
|
case 0:
|
|
td->td_retval[0] = 0;
|
|
return (0);
|
|
default:
|
|
CHECKALTEXIST(td, uap->path, &path);
|
|
error = kern_pathconf(td, path, UIO_SYSSPACE, name);
|
|
free(path, M_TEMP);
|
|
return (error);
|
|
}
|
|
}
|
|
|
|
|
|
int
|
|
svr4_sys_fpathconf(td, uap)
|
|
register struct thread *td;
|
|
struct svr4_sys_fpathconf_args *uap;
|
|
{
|
|
register_t *retval = td->td_retval;
|
|
|
|
uap->name = svr4_to_bsd_pathconf(uap->name);
|
|
|
|
switch (uap->name) {
|
|
case -1:
|
|
*retval = -1;
|
|
return EINVAL;
|
|
case 0:
|
|
*retval = 0;
|
|
return 0;
|
|
default:
|
|
return fpathconf(td, (struct fpathconf_args *)uap);
|
|
}
|
|
}
|