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NetBSD/sys/compat/svr4/svr4_stat.c

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/* $NetBSD: svr4_stat.c,v 1.69 2009/01/11 02:45:50 christos Exp $ */
/*-
* Copyright (c) 1994, 2008 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Christos Zoulas.
*
* 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: svr4_stat.c,v 1.69 2009/01/11 02:45:50 christos Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/namei.h>
#include <sys/proc.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/filedesc.h>
#include <sys/ioctl.h>
#include <sys/kernel.h>
#include <sys/mount.h>
#include <sys/malloc.h>
#include <sys/namei.h>
#include <sys/unistd.h>
#include <sys/time.h>
#include <sys/ucred.h>
#include <uvm/uvm_extern.h>
#include <sys/sysctl.h>
#include <sys/syscallargs.h>
#include <sys/vfs_syscalls.h>
#include <compat/svr4/svr4_types.h>
#include <compat/svr4/svr4_signal.h>
#include <compat/svr4/svr4_lwp.h>
#include <compat/svr4/svr4_ucontext.h>
#include <compat/svr4/svr4_syscallargs.h>
#include <compat/svr4/svr4_util.h>
#include <compat/svr4/svr4_stat.h>
#include <compat/svr4/svr4_ustat.h>
#include <compat/svr4/svr4_fuser.h>
#include <compat/svr4/svr4_utsname.h>
#include <compat/svr4/svr4_systeminfo.h>
#include <compat/svr4/svr4_time.h>
#include <compat/svr4/svr4_socket.h>
#ifdef __sparc__
/*
* Solaris-2.4 on the sparc has the old stat call using the new
* stat data structure...
*/
# define SVR4_NO_OSTAT
#endif
static void bsd_to_svr4_xstat(struct stat *, struct svr4_xstat *);
static void bsd_to_svr4_stat64(struct stat *, struct svr4_stat64 *);
struct svr4_ustat_args {
syscallarg(svr4_dev_t) dev;
syscallarg(struct svr4_ustat *) name;
};
int svr4_ustat(struct lwp *, const struct svr4_ustat_args *, register_t *);
static int svr4_to_bsd_pathconf(int);
/*
* SVR4 uses named pipes as named sockets, so we tell programs
* that sockets are named pipes with mode 0
*/
#define BSD_TO_SVR4_MODE(mode) (S_ISSOCK(mode) ? S_IFIFO : (mode))
#ifndef SVR4_NO_OSTAT
static void bsd_to_svr4_stat(struct stat *, struct svr4_stat *);
static void
bsd_to_svr4_stat(struct stat *st, struct svr4_stat *st4)
{
memset(st4, 0, sizeof(*st4));
st4->st_dev = bsd_to_svr4_odev_t(st->st_dev);
st4->st_ino = st->st_ino;
st4->st_mode = BSD_TO_SVR4_MODE(st->st_mode);
st4->st_nlink = st->st_nlink;
st4->st_uid = st->st_uid;
st4->st_gid = st->st_gid;
st4->st_rdev = bsd_to_svr4_odev_t(st->st_rdev);
st4->st_size = st->st_size;
st4->st_atim = st->st_atimespec.tv_sec;
st4->st_mtim = st->st_mtimespec.tv_sec;
st4->st_ctim = st->st_ctimespec.tv_sec;
}
#endif
static void
bsd_to_svr4_xstat(struct stat *st, struct svr4_xstat *st4)
{
memset(st4, 0, sizeof(*st4));
st4->st_dev = bsd_to_svr4_dev_t(st->st_dev);
st4->st_ino = st->st_ino;
st4->st_mode = BSD_TO_SVR4_MODE(st->st_mode);
st4->st_nlink = st->st_nlink;
st4->st_uid = st->st_uid;
st4->st_gid = st->st_gid;
st4->st_rdev = bsd_to_svr4_dev_t(st->st_rdev);
st4->st_size = st->st_size;
st4->st_atim.tv_sec = st->st_atimespec.tv_sec;
st4->st_atim.tv_nsec = st->st_atimespec.tv_nsec;
st4->st_mtim.tv_sec = st->st_mtimespec.tv_sec;
st4->st_mtim.tv_nsec = st->st_mtimespec.tv_nsec;
st4->st_ctim.tv_sec = st->st_ctimespec.tv_sec;
st4->st_ctim.tv_nsec = st->st_ctimespec.tv_nsec;
st4->st_blksize = st->st_blksize;
st4->st_blocks = st->st_blocks;
strlcpy(st4->st_fstype, "unknown", sizeof(st4->st_fstype));
}
static void
bsd_to_svr4_stat64(struct stat *st, struct svr4_stat64 *st4)
{
memset(st4, 0, sizeof(*st4));
st4->st_dev = bsd_to_svr4_dev_t(st->st_dev);
st4->st_ino = st->st_ino;
st4->st_mode = BSD_TO_SVR4_MODE(st->st_mode);
st4->st_nlink = st->st_nlink;
st4->st_uid = st->st_uid;
st4->st_gid = st->st_gid;
st4->st_rdev = bsd_to_svr4_dev_t(st->st_rdev);
st4->st_size = st->st_size;
st4->st_atim.tv_sec = st->st_atimespec.tv_sec;
st4->st_atim.tv_nsec = st->st_atimespec.tv_nsec;
st4->st_mtim.tv_sec = st->st_mtimespec.tv_sec;
st4->st_mtim.tv_nsec = st->st_mtimespec.tv_nsec;
st4->st_ctim.tv_sec = st->st_ctimespec.tv_sec;
st4->st_ctim.tv_nsec = st->st_ctimespec.tv_nsec;
st4->st_blksize = st->st_blksize;
st4->st_blocks = st->st_blocks;
strlcpy(st4->st_fstype, "unknown", sizeof(st4->st_fstype));
}
int
svr4_sys_stat(struct lwp *l, const struct svr4_sys_stat_args *uap, register_t *retval)
{
#ifdef SVR4_NO_OSTAT
struct svr4_sys_xstat_args cup;
SCARG(&cup, two) = 2;
SCARG(&cup, path) = SCARG(uap, path);
SCARG(&cup, ub) = (struct svr4_xstat *) SCARG(uap, ub);
return svr4_sys_xstat(l, &cup, retval);
#else
struct stat st;
struct svr4_stat svr4_st;
int error;
error = do_sys_stat(SCARG(uap, path), FOLLOW, &st);
if (error != 0)
return error;
bsd_to_svr4_stat(&st, &svr4_st);
if (S_ISSOCK(st.st_mode))
(void) svr4_add_socket(l->l_proc, SCARG(uap, path), &st);
return copyout(&svr4_st, SCARG(uap, ub), sizeof svr4_st);
#endif
}
int
svr4_sys_lstat(struct lwp *l, const struct svr4_sys_lstat_args *uap, register_t *retval)
{
#ifdef SVR4_NO_OSTAT
struct svr4_sys_lxstat_args cup;
SCARG(&cup, two) = 2;
SCARG(&cup, path) = SCARG(uap, path);
SCARG(&cup, ub) = (struct svr4_xstat *) SCARG(uap, ub);
return svr4_sys_lxstat(l, &cup, retval);
#else
struct stat st;
struct svr4_stat svr4_st;
int error;
error = do_sys_stat(SCARG(uap, path), NOFOLLOW, &st);
if (error != 0)
return error;
bsd_to_svr4_stat(&st, &svr4_st);
if (S_ISSOCK(st.st_mode))
(void) svr4_add_socket(l->l_proc, SCARG(uap, path), &st);
return copyout(&svr4_st, SCARG(uap, ub), sizeof svr4_st);
#endif
}
int
svr4_sys_fstat(struct lwp *l, const struct svr4_sys_fstat_args *uap, register_t *retval)
{
#ifdef SVR4_NO_OSTAT
struct svr4_sys_fxstat_args cup;
SCARG(&cup, two) = 2;
SCARG(&cup, fd) = SCARG(uap, fd);
SCARG(&cup, sb) = (struct svr4_xstat *) SCARG(uap, sb);
return svr4_sys_fxstat(l, &cup, retval);
#else
struct stat st;
struct svr4_stat svr4_st;
int error;
error = do_sys_fstat(SCARG(uap, fd), &st);
if (error != 0)
return error;
bsd_to_svr4_stat(&st, &svr4_st);
return copyout(&svr4_st, SCARG(uap, sb), sizeof svr4_st);
#endif
}
int
svr4_sys_xstat(struct lwp *l, const struct svr4_sys_xstat_args *uap, register_t *retval)
{
struct stat st;
struct svr4_xstat svr4_st;
int error;
error = do_sys_stat(SCARG(uap, path), FOLLOW, &st);
if (error != 0)
return error;
bsd_to_svr4_xstat(&st, &svr4_st);
if (S_ISSOCK(st.st_mode))
(void) svr4_add_socket(l->l_proc, SCARG(uap, path), &st);
return copyout(&svr4_st, SCARG(uap, ub), sizeof svr4_st);
}
int
svr4_sys_lxstat(struct lwp *l, const struct svr4_sys_lxstat_args *uap, register_t *retval)
{
struct stat st;
struct svr4_xstat svr4_st;
int error;
error = do_sys_stat(SCARG(uap, path), NOFOLLOW, &st);
if (error != 0)
return error;
bsd_to_svr4_xstat(&st, &svr4_st);
if (S_ISSOCK(st.st_mode))
(void) svr4_add_socket(l->l_proc, SCARG(uap, path), &st);
return copyout(&svr4_st, SCARG(uap, ub), sizeof svr4_st);
}
int
svr4_sys_fxstat(struct lwp *l, const struct svr4_sys_fxstat_args *uap, register_t *retval)
{
struct stat st;
struct svr4_xstat svr4_st;
int error;
error = do_sys_fstat(SCARG(uap, fd), &st);
if (error != 0)
return error;
bsd_to_svr4_xstat(&st, &svr4_st);
return copyout(&svr4_st, SCARG(uap, sb), sizeof svr4_st);
}
int
svr4_sys_stat64(struct lwp *l, const struct svr4_sys_stat64_args *uap, register_t *retval)
{
struct stat st;
struct svr4_stat64 svr4_st;
int error;
error = do_sys_stat(SCARG(uap, path), FOLLOW, &st);
if (error != 0)
return error;
bsd_to_svr4_stat64(&st, &svr4_st);
if (S_ISSOCK(st.st_mode))
(void) svr4_add_socket(l->l_proc, SCARG(uap, path), &st);
return copyout(&svr4_st, SCARG(uap, sb), sizeof svr4_st);
}
int
svr4_sys_lstat64(struct lwp *l, const struct svr4_sys_lstat64_args *uap, register_t *retval)
{
struct stat st;
struct svr4_stat64 svr4_st;
int error;
error = do_sys_stat(SCARG(uap, path), NOFOLLOW, &st);
if (error != 0)
return error;
bsd_to_svr4_stat64(&st, &svr4_st);
if (S_ISSOCK(st.st_mode))
(void) svr4_add_socket(l->l_proc, SCARG(uap, path), &st);
return copyout(&svr4_st, SCARG(uap, sb), sizeof svr4_st);
}
int
svr4_sys_fstat64(struct lwp *l, const struct svr4_sys_fstat64_args *uap, register_t *retval)
{
struct svr4_stat64 svr4_st;
struct stat st;
int error;
error = do_sys_fstat(SCARG(uap, fd), &st);
if (error != 0)
return error;
bsd_to_svr4_stat64(&st, &svr4_st);
return copyout(&svr4_st, SCARG(uap, sb), sizeof svr4_st);
}
int
svr4_ustat(struct lwp *l, const struct svr4_ustat_args *uap, register_t *retval)
{
/* {
syscallarg(svr4_dev_t) dev;
syscallarg(struct svr4_ustat *) name;
} */
struct svr4_ustat us;
int error;
memset(&us, 0, sizeof us);
/*
* XXX: should set f_tfree and f_tinode at least
* How do we translate dev -> fstat? (and then to svr4_ustat)
*/
if ((error = copyout(&us, SCARG(uap, name), sizeof us)) != 0)
return (error);
return 0;
}
int
svr4_sys_uname(struct lwp *l, const struct svr4_sys_uname_args *uap, register_t *retval)
{
struct svr4_utsname *sut;
int error;
sut = malloc(sizeof(*sut), M_TEMP, M_WAITOK|M_ZERO);
(void)strncpy(sut->sysname, ostype, sizeof(sut->sysname));
sut->sysname[sizeof(sut->sysname) - 1] = '\0';
(void)strncpy(sut->nodename, hostname, sizeof(sut->nodename));
sut->nodename[sizeof(sut->nodename) - 1] = '\0';
(void)strncpy(sut->release, osrelease, sizeof(sut->release));
sut->release[sizeof(sut->release) - 1] = '\0';
(void)strncpy(sut->version, version, sizeof(sut->version));
sut->version[sizeof(sut->version) - 1] = '\0';
(void)strncpy(sut->machine, machine, sizeof(sut->machine));
sut->machine[sizeof(sut->machine) - 1] = '\0';
error = copyout(sut, SCARG(uap, name), sizeof(*sut));
free(sut, M_TEMP);
return error;
}
int
svr4_sys_systeminfo(struct lwp *l, const struct svr4_sys_systeminfo_args *uap, register_t *retval)
{
const char *str = NULL;
int name[2];
int error;
size_t len;
char buf[256];
u_int rlen = SCARG(uap, len);
switch (SCARG(uap, what)) {
case SVR4_SI_SYSNAME:
str = ostype;
break;
case SVR4_SI_HOSTNAME:
str = hostname;
break;
case SVR4_SI_RELEASE:
str = osrelease;
break;
case SVR4_SI_VERSION:
str = version;
break;
case SVR4_SI_MACHINE:
str = machine;
break;
case SVR4_SI_ARCHITECTURE:
str = machine_arch;
break;
case SVR4_SI_ISALIST:
#if defined(__sparc__)
str = "sparcv9 sparcv9-fsmuld sparcv8 sparcv8-fsmuld sparcv7 sparc";
#elif defined(__i386__)
str = "i386";
#else
str = "unknown";
#endif
break;
case SVR4_SI_HW_SERIAL:
snprintf(buf, sizeof(buf), "%lu", hostid);
str = buf;
break;
case SVR4_SI_HW_PROVIDER:
str = ostype;
break;
case SVR4_SI_SRPC_DOMAIN:
str = domainname;
break;
case SVR4_SI_PLATFORM:
#if defined(__i386__)
str = "i86pc";
#elif defined(__sparc__)
#elif defined(__sparc__)
{
extern char machine_model[];
str = machine_model;
}
#else
str = "unknown";
#endif
break;
case SVR4_SI_KERB_REALM:
str = "unsupported";
break;
case SVR4_SI_SET_HOSTNAME:
name[1] = KERN_HOSTNAME;
break;
case SVR4_SI_SET_SRPC_DOMAIN:
name[1] = KERN_DOMAINNAME;
break;
case SVR4_SI_SET_KERB_REALM:
return 0;
default:
DPRINTF(("Bad systeminfo command %d\n", SCARG(uap, what)));
return ENOSYS;
}
if (str) {
len = strlen(str) + 1;
if (len < rlen)
rlen = len;
if (SCARG(uap, buf)) {
error = copyout(str, SCARG(uap, buf), rlen);
if (error)
return error;
if (rlen > 0) {
/* make sure we are NULL terminated */
buf[0] = '\0';
error = copyout(buf,
&(SCARG(uap, buf)[rlen - 1]), 1);
}
}
else
error = 0;
}
else {
/*
* looks redundant to do this, but actually it retrieves "len"
*/
error = copyinstr(SCARG(uap, buf), buf, sizeof(buf), &len);
if (error)
return error;
name[0] = CTL_KERN;
error = old_sysctl(&name[0], 2, 0, 0, SCARG(uap, buf), len, l);
}
*retval = len;
return error;
}
int
svr4_sys_utssys(struct lwp *l, const struct svr4_sys_utssys_args *uap, register_t *retval)
{
switch (SCARG(uap, sel)) {
case 0: /* uname(2) */
{
struct svr4_sys_uname_args ua;
SCARG(&ua, name) = SCARG(uap, a1);
return svr4_sys_uname(l, &ua, retval);
}
case 2: /* ustat(2) */
{
struct svr4_ustat_args ua;
SCARG(&ua, dev) = (svr4_dev_t) SCARG(uap, a2);
SCARG(&ua, name) = SCARG(uap, a1);
return svr4_ustat(l, &ua, retval);
}
case 3: /* fusers(2) */
return ENOSYS;
default:
return ENOSYS;
}
}
int
svr4_sys_utime(struct lwp *l, const struct svr4_sys_utime_args *uap, register_t *retval)
{
struct svr4_utimbuf ub;
struct timeval tbuf[2], *tvp;
int error;
if (SCARG(uap, ubuf) != NULL) {
if ((error = copyin(SCARG(uap, ubuf), &ub, sizeof(ub))) != 0)
return error;
tbuf[0].tv_sec = ub.actime;
tbuf[0].tv_usec = 0;
tbuf[1].tv_sec = ub.modtime;
tbuf[1].tv_usec = 0;
tvp = tbuf;
} else
tvp = NULL;
return do_sys_utimes(l, NULL, SCARG(uap, path), FOLLOW,
tvp, UIO_SYSSPACE);
}
int
svr4_sys_utimes(struct lwp *l, const struct svr4_sys_utimes_args *uap, register_t *retval)
{
return compat_50_sys_utimes(l, (const void *)uap, retval);
}
static int
svr4_to_bsd_pathconf(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:
return _PC_SYNC_IO;
case SVR4_PC_FILESIZEBITS:
return _PC_FILESIZEBITS;
case SVR4_PC_ASYNC_IO:
case SVR4_PC_PRIO_IO:
/* Not supported */
return 0;
default:
/* Invalid */
return -1;
}
}
int
svr4_sys_pathconf(struct lwp *l, const struct svr4_sys_pathconf_args *uap, register_t *retval)
{
struct sys_pathconf_args bsd_ua;
SCARG(&bsd_ua, path) = SCARG(uap, path);
SCARG(&bsd_ua, name) = svr4_to_bsd_pathconf(SCARG(uap, name));
switch (SCARG(&bsd_ua, name)) {
case -1:
*retval = -1;
return EINVAL;
case 0:
*retval = 0;
return 0;
default:
return sys_pathconf(l, &bsd_ua, retval);
}
}
int
svr4_sys_fpathconf(struct lwp *l, const struct svr4_sys_fpathconf_args *uap, register_t *retval)
{
struct sys_fpathconf_args bsd_ua;
SCARG(&bsd_ua, fd) = SCARG(uap, fd);
SCARG(&bsd_ua, name) = svr4_to_bsd_pathconf(SCARG(uap, name));
switch (SCARG(&bsd_ua, name)) {
case -1:
*retval = -1;
return EINVAL;
case 0:
*retval = 0;
return 0;
default:
return sys_fpathconf(l, &bsd_ua, retval);
}
}
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