NetBSD/sys/compat/sunos/sunos_misc.c

1109 lines
27 KiB
C

/* $NetBSD: sunos_misc.c,v 1.176 2019/10/26 11:34:48 christos Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* 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, Lawrence Berkeley Laboratory.
*
* 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.
*
* @(#)sunos_misc.c 8.1 (Berkeley) 6/18/93
*
* Header: sunos_misc.c,v 1.16 93/04/07 02:46:27 torek Exp
*/
/*
* SunOS compatibility module.
*
* SunOS system calls that are implemented differently in BSD are
* handled here.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: sunos_misc.c,v 1.176 2019/10/26 11:34:48 christos Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/namei.h>
#include <sys/proc.h>
#include <sys/dirent.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/filedesc.h>
#include <sys/ioctl.h>
#include <sys/kernel.h>
#include <sys/reboot.h>
#include <sys/malloc.h>
#include <sys/mbuf.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/ptrace.h>
#include <sys/resource.h>
#include <sys/resourcevar.h>
#include <sys/signal.h>
#include <sys/signalvar.h>
#include <sys/socket.h>
#include <sys/tty.h>
#include <sys/vnode.h>
#include <sys/uio.h>
#include <sys/wait.h>
#include <sys/utsname.h>
#include <sys/unistd.h>
#include <sys/syscall.h>
#include <sys/syscallargs.h>
#include <sys/conf.h>
#include <sys/socketvar.h>
#include <sys/exec.h>
#include <sys/swap.h>
#include <sys/kauth.h>
#include <compat/sys/signal.h>
#include <compat/sunos/sunos.h>
#include <compat/sunos/sunos_syscallargs.h>
#include <compat/common/compat_util.h>
#include <compat/sunos/sunos_dirent.h>
#include <compat/sys/mount.h>
#include <netinet/in.h>
#include <miscfs/specfs/specdev.h>
#include <nfs/rpcv2.h>
#include <nfs/nfsproto.h>
#include <nfs/nfs.h>
#include <nfs/nfsmount.h>
static int sunstatfs(struct statvfs *, void *);
int
sunos_sys_stime(struct lwp *l, const struct sunos_sys_stime_args *uap, register_t *retval)
{
struct timeval tv;
int error;
error = copyin(SCARG(uap, tp), &tv.tv_sec, sizeof(tv.tv_sec));
if (error)
return error;
tv.tv_usec = 0;
return settimeofday1(&tv, false, NULL, l, true);
}
int
sunos_sys_wait4(struct lwp *l, const struct sunos_sys_wait4_args *uap, register_t *retval)
{
struct compat_50_sys_wait4_args bsd_ua;
SCARG(&bsd_ua, pid) = SCARG(uap, pid) == 0 ? WAIT_ANY : SCARG(uap, pid);
SCARG(&bsd_ua, status) = SCARG(uap, status);
SCARG(&bsd_ua, options) = SCARG(uap, options);
SCARG(&bsd_ua, rusage) = SCARG(uap, rusage);
return (compat_50_sys_wait4(l, &bsd_ua, retval));
}
int
sunos_sys_creat(struct lwp *l, const struct sunos_sys_creat_args *uap, register_t *retval)
{
struct sys_open_args ouap;
SCARG(&ouap, path) = SCARG(uap, path);
SCARG(&ouap, flags) = O_WRONLY | O_CREAT | O_TRUNC;
SCARG(&ouap, mode) = SCARG(uap, mode);
return (sys_open(l, &ouap, retval));
}
int
sunos_sys_execv(struct lwp *l, const struct sunos_sys_execv_args *uap, register_t *retval)
{
/* {
syscallarg(const char *) path;
syscallarg(char **) argv;
} */
struct sys_execve_args ap;
SCARG(&ap, path) = SCARG(uap, path);
SCARG(&ap, argp) = SCARG(uap, argp);
SCARG(&ap, envp) = NULL;
return (sys_execve(l, &ap, retval));
}
int
sunos_sys_execve(struct lwp *l, const struct sunos_sys_execve_args *uap, register_t *retval)
{
/* {
syscallarg(const char *) path;
syscallarg(char **) argv;
syscallarg(char **) envp;
} */
struct sys_execve_args ap;
SCARG(&ap, path) = SCARG(uap, path);
SCARG(&ap, argp) = SCARG(uap, argp);
SCARG(&ap, envp) = SCARG(uap, envp);
return (sys_execve(l, &ap, retval));
}
int
sunos_sys_omsync(struct lwp *l, const struct sunos_sys_omsync_args *uap, register_t *retval)
{
struct sys___msync13_args ouap;
SCARG(&ouap, addr) = SCARG(uap, addr);
SCARG(&ouap, len) = SCARG(uap, len);
SCARG(&ouap, flags) = SCARG(uap, flags);
return (sys___msync13(l, &ouap, retval));
}
int
sunos_sys_unmount(struct lwp *l, const struct sunos_sys_unmount_args *uap, register_t *retval)
{
struct sys_unmount_args ouap;
SCARG(&ouap, path) = SCARG(uap, path);
SCARG(&ouap, flags) = 0;
return (sys_unmount(l, &ouap, retval));
}
/*
* Conversion table for SunOS NFS mount flags.
*/
static struct {
int sun_flg;
int bsd_flg;
} sunnfs_flgtab[] = {
{ SUNNFS_SOFT, NFSMNT_SOFT },
{ SUNNFS_WSIZE, NFSMNT_WSIZE },
{ SUNNFS_RSIZE, NFSMNT_RSIZE },
{ SUNNFS_TIMEO, NFSMNT_TIMEO },
{ SUNNFS_RETRANS, NFSMNT_RETRANS },
{ SUNNFS_HOSTNAME, 0 }, /* Ignored */
{ SUNNFS_INT, NFSMNT_INT },
{ SUNNFS_NOAC, 0 }, /* Ignored */
{ SUNNFS_ACREGMIN, 0 }, /* Ignored */
{ SUNNFS_ACREGMAX, 0 }, /* Ignored */
{ SUNNFS_ACDIRMIN, 0 }, /* Ignored */
{ SUNNFS_ACDIRMAX, 0 }, /* Ignored */
{ SUNNFS_SECURE, 0 }, /* Ignored */
{ SUNNFS_NOCTO, 0 }, /* Ignored */
{ SUNNFS_POSIX, 0 } /* Ignored */
};
int
sunos_sys_mount(struct lwp *l, const struct sunos_sys_mount_args *uap, register_t *retval)
{
int oflags = SCARG(uap, flags), nflags, error;
char fsname[MFSNAMELEN];
register_t dummy;
if (oflags & (SUNM_NOSUB | SUNM_SYS5))
return (EINVAL);
if ((oflags & SUNM_NEWTYPE) == 0)
return (EINVAL);
nflags = 0;
if (oflags & SUNM_RDONLY)
nflags |= MNT_RDONLY;
if (oflags & SUNM_NOSUID)
nflags |= MNT_NOSUID;
if (oflags & SUNM_REMOUNT)
nflags |= MNT_UPDATE;
error = copyinstr(SCARG(uap, type), fsname, sizeof fsname, NULL);
if (error)
return (error);
if (strcmp(fsname, "nfs") == 0) {
struct sunos_nfs_args sna;
struct nfs_args na;
int n;
error = copyin(SCARG(uap, data), &sna, sizeof sna);
if (error)
return (error);
/* sa.sa_len = sizeof(sain); */
na.version = NFS_ARGSVERSION;
na.addr = (void *)sna.addr;
na.addrlen = sizeof(struct sockaddr);
na.sotype = SOCK_DGRAM;
na.proto = IPPROTO_UDP;
na.fh = sna.fh;
na.fhsize = NFSX_V2FH;
na.flags = 0;
n = sizeof(sunnfs_flgtab) / sizeof(sunnfs_flgtab[0]);
while (--n >= 0)
if (sna.flags & sunnfs_flgtab[n].sun_flg)
na.flags |= sunnfs_flgtab[n].bsd_flg;
na.wsize = sna.wsize;
na.rsize = sna.rsize;
if (na.flags & NFSMNT_RSIZE) {
na.flags |= NFSMNT_READDIRSIZE;
na.readdirsize = na.rsize;
}
na.timeo = sna.timeo;
na.retrans = sna.retrans;
#ifdef __arch64__
/* XXX */
na.hostname = (char *)(intptr_t)sna.hostname;
#else
na.hostname = sna.hostname;
#endif
return do_sys_mount(l, "nfs", UIO_SYSSPACE,
SCARG(uap, dir), nflags, &na,
UIO_SYSSPACE, sizeof na, &dummy);
}
if (strcmp(fsname, "4.2") == 0)
strcpy(fsname, "ffs");
return do_sys_mount(l, fsname, UIO_SYSSPACE,
SCARG(uap, dir), nflags, SCARG(uap, data),
UIO_USERSPACE, 0, &dummy);
}
int
async_daemon(struct lwp *l, const void *v, register_t *retval)
{
return kpause("fakeniod", false, 0, NULL);
}
void native_to_sunos_sigset(const sigset_t *, int *);
void sunos_to_native_sigset(const int, sigset_t *);
inline void
native_to_sunos_sigset(const sigset_t *ss, int *mask)
{
*mask = ss->__bits[0];
}
inline void
sunos_to_native_sigset(const int mask, sigset_t *ss)
{
ss->__bits[0] = mask;
ss->__bits[1] = 0;
ss->__bits[2] = 0;
ss->__bits[3] = 0;
}
int
sunos_sys_sigpending(struct lwp *l, const struct sunos_sys_sigpending_args *uap, register_t *retval)
{
sigset_t ss;
int mask;
sigpending1(l, &ss);
native_to_sunos_sigset(&ss, &mask);
return (copyout((void *)&mask, (void *)SCARG(uap, mask), sizeof(int)));
}
int
sunos_sys_sigsuspend(struct lwp *l, const struct sunos_sys_sigsuspend_args *uap, register_t *retval)
{
/* {
syscallarg(int) mask;
} */
int mask;
sigset_t ss;
mask = SCARG(uap, mask);
sunos_to_native_sigset(mask, &ss);
return (sigsuspend1(l, &ss));
}
/*
* Read Sun-style directory entries. We suck them into kernel space so
* that they can be massaged before being copied out to user code. Like
* SunOS, we squish out `empty' entries.
*
* This is quite ugly, but what do you expect from compatibility code?
*/
int
sunos_sys_getdents(struct lwp *l, const struct sunos_sys_getdents_args *uap, register_t *retval)
{
struct dirent *bdp;
struct vnode *vp;
char *inp, *buf; /* BSD-format */
int len, reclen; /* BSD-format */
char *outp; /* Sun-format */
int resid, sunos_reclen;/* Sun-format */
struct file *fp;
struct uio auio;
struct iovec aiov;
struct sunos_dirent idb;
off_t off; /* true file offset */
int buflen, error, eofflag;
off_t *cookiebuf, *cookie;
int ncookies;
if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0)
return (error);
if ((fp->f_flag & FREAD) == 0) {
error = EBADF;
goto out1;
}
vp = fp->f_vnode;
if (vp->v_type != VDIR) {
error = EINVAL;
goto out1;
}
buflen = uimin(MAXBSIZE, SCARG(uap, nbytes));
buf = malloc(buflen, M_TEMP, M_WAITOK);
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
off = fp->f_offset;
again:
aiov.iov_base = buf;
aiov.iov_len = buflen;
auio.uio_iov = &aiov;
auio.uio_iovcnt = 1;
auio.uio_rw = UIO_READ;
auio.uio_resid = buflen;
auio.uio_offset = off;
UIO_SETUP_SYSSPACE(&auio);
/*
* First we read into the malloc'ed buffer, then
* we massage it into user space, one record at a time.
*/
error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &cookiebuf,
&ncookies);
if (error)
goto out;
inp = buf;
outp = SCARG(uap, buf);
resid = SCARG(uap, nbytes);
if ((len = buflen - auio.uio_resid) == 0)
goto eof;
for (cookie = cookiebuf; len > 0; len -= reclen) {
bdp = (struct dirent *)inp;
reclen = bdp->d_reclen;
if (reclen & 3) {
error = EIO;
goto out;
}
if ((*cookie >> 32) != 0) {
compat_offseterr(vp, "sunos_getdents");
error = EINVAL;
goto out;
}
if (bdp->d_fileno == 0) {
inp += reclen; /* it is a hole; squish it out */
if (cookie)
off = *cookie++;
else
off += reclen;
continue;
}
sunos_reclen = SUNOS_RECLEN(&idb, bdp->d_namlen);
if (reclen > len || resid < sunos_reclen) {
/* entry too big for buffer, so just stop */
outp++;
break;
}
if (cookie)
off = *cookie++; /* each entry points to next */
else
off += reclen;
/*
* Massage in place to make a Sun-shaped dirent (otherwise
* we have to worry about touching user memory outside of
* the copyout() call).
*/
idb.d_fileno = bdp->d_fileno;
idb.d_off = off;
idb.d_reclen = sunos_reclen;
idb.d_namlen = bdp->d_namlen;
strlcpy(idb.d_name, bdp->d_name, sizeof(idb.d_name));
if ((error = copyout((void *)&idb, outp, sunos_reclen)) != 0)
goto out;
/* advance past this real entry */
inp += reclen;
/* advance output past Sun-shaped entry */
outp += sunos_reclen;
resid -= sunos_reclen;
}
/* if we squished out the whole block, try again */
if (outp == SCARG(uap, buf)) {
if (cookiebuf)
free(cookiebuf, M_TEMP);
cookiebuf = NULL;
goto again;
}
fp->f_offset = off; /* update the vnode offset */
eof:
*retval = SCARG(uap, nbytes) - resid;
out:
VOP_UNLOCK(vp);
free(cookiebuf, M_TEMP);
free(buf, M_TEMP);
out1:
fd_putfile(SCARG(uap, fd));
return (error);
}
#define SUNOS__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */
int
sunos_sys_mmap(struct lwp *l, const struct sunos_sys_mmap_args *uap, register_t *retval)
{
struct sys_mmap_args ouap;
/*
* Verify the arguments.
*/
if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC))
return (EINVAL); /* XXX still needed? */
if ((SCARG(uap, flags) & SUNOS__MAP_NEW) == 0)
return (EINVAL);
SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUNOS__MAP_NEW;
SCARG(&ouap, addr) = SCARG(uap, addr);
SCARG(&ouap, len) = SCARG(uap, len);
SCARG(&ouap, prot) = SCARG(uap, prot);
SCARG(&ouap, fd) = SCARG(uap, fd);
SCARG(&ouap, pos) = SCARG(uap, pos);
return (sys_mmap(l, &ouap, retval));
}
#define MC_SYNC 1
#define MC_LOCK 2
#define MC_UNLOCK 3
#define MC_ADVISE 4
#define MC_LOCKAS 5
#define MC_UNLOCKAS 6
int
sunos_sys_mctl(struct lwp *l, const struct sunos_sys_mctl_args *uap, register_t *retval)
{
switch (SCARG(uap, func)) {
case MC_ADVISE: /* ignore for now */
return (0);
case MC_SYNC: /* translate to msync */
return (sys___msync13(l, (const void *)uap, retval));
default:
return (EINVAL);
}
}
int
sunos_sys_setsockopt(struct lwp *l, const struct sunos_sys_setsockopt_args *uap, register_t *retval)
{
struct sockopt sopt;
struct socket *so;
int name = SCARG(uap, name);
int error;
/* fd_getsock() will use the descriptor for us */
if ((error = fd_getsock(SCARG(uap, s), &so)) != 0)
return (error);
#define SO_DONTLINGER (~SO_LINGER)
if (name == SO_DONTLINGER) {
struct linger lg;
lg.l_onoff = 0;
error = so_setsockopt(l, so, SCARG(uap, level), SO_LINGER,
&lg, sizeof(lg));
goto out;
}
if (SCARG(uap, level) == IPPROTO_IP) {
#define SUNOS_IP_MULTICAST_IF 2
#define SUNOS_IP_MULTICAST_TTL 3
#define SUNOS_IP_MULTICAST_LOOP 4
#define SUNOS_IP_ADD_MEMBERSHIP 5
#define SUNOS_IP_DROP_MEMBERSHIP 6
static const int ipoptxlat[] = {
IP_MULTICAST_IF,
IP_MULTICAST_TTL,
IP_MULTICAST_LOOP,
IP_ADD_MEMBERSHIP,
IP_DROP_MEMBERSHIP
};
if (name >= SUNOS_IP_MULTICAST_IF &&
name <= SUNOS_IP_DROP_MEMBERSHIP) {
name = ipoptxlat[name - SUNOS_IP_MULTICAST_IF];
}
}
if ((unsigned)SCARG(uap, valsize) > MLEN) {
error = EINVAL;
goto out;
}
sockopt_init(&sopt, SCARG(uap, level), name, SCARG(uap, valsize));
if (SCARG(uap, val)) {
error = copyin(SCARG(uap, val), sopt.sopt_data,
(u_int)SCARG(uap, valsize));
}
if (error == 0)
error = sosetopt(so, &sopt);
sockopt_destroy(&sopt);
out:
fd_putfile(SCARG(uap, s));
return (error);
}
static inline int sunos_sys_socket_common(struct lwp *, register_t *,
int type);
static inline int
sunos_sys_socket_common(struct lwp *l, register_t *retval, int type)
{
struct socket *so;
int error, fd;
/* fd_getsock() will use the descriptor for us */
fd = (int)*retval;
if ((error = fd_getsock(fd, &so)) == 0) {
if (type == SOCK_DGRAM)
so->so_options |= SO_BROADCAST;
fd_putfile(fd);
}
return (error);
}
int
sunos_sys_socket(struct lwp *l, const struct sunos_sys_socket_args *uap, register_t *retval)
{
/* {
syscallarg(int) domain;
syscallarg(int) type;
syscallarg(int) protocol;
} */
int error;
error = compat_30_sys_socket(l, (const void *)uap, retval);
if (error)
return (error);
return sunos_sys_socket_common(l, retval, SCARG(uap, type));
}
int
sunos_sys_socketpair(struct lwp *l, const struct sunos_sys_socketpair_args *uap, register_t *retval)
{
/* {
syscallarg(int) domain;
syscallarg(int) type;
syscallarg(int) protocol;
syscallarg(int *) rsv;
} */
int error;
error = sys_socketpair(l, (const void *)uap, retval);
if (error)
return (error);
return sunos_sys_socket_common(l, retval, SCARG(uap, type));
}
/*
* XXX: This needs cleaning up.
*/
int
sunos_sys_auditsys(struct lwp *l, const struct sunos_sys_auditsys_args *uap, register_t *retval)
{
return 0;
}
int
sunos_sys_uname(struct lwp *l, const struct sunos_sys_uname_args *uap, register_t *retval)
{
struct sunos_utsname sut;
memset(&sut, 0, sizeof(sut));
strlcpy(sut.sysname, ostype, sizeof(sut.sysname));
strlcpy(sut.nodename, hostname, sizeof(sut.nodename));
strlcpy(sut.release, osrelease, sizeof(sut.release));
strlcpy(sut.version, "1", sizeof(sut.version));
strlcpy(sut.machine, machine, sizeof(sut.machine));
return copyout(&sut, SCARG(uap, name), sizeof(sut));
}
int
sunos_sys_setpgrp(struct lwp *l, const struct sunos_sys_setpgrp_args *uap, register_t *retval)
{
struct proc *p = l->l_proc;
/*
* difference to our setpgid call is to include backwards
* compatibility to pre-setsid() binaries. Do setsid()
* instead of setpgid() in those cases where the process
* tries to create a new session the old way.
*/
if (!SCARG(uap, pgid) &&
(!SCARG(uap, pid) || SCARG(uap, pid) == p->p_pid))
return sys_setsid(l, NULL, retval);
else
return sys_setpgid(l, (const void *)uap, retval);
}
int
sunos_sys_open(struct lwp *l, const struct sunos_sys_open_args *uap, register_t *retval)
{
struct proc *p = l->l_proc;
struct sys_open_args open_ua;
int smode, nmode;
int noctty;
int ret;
/* convert mode into NetBSD mode */
smode = SCARG(uap, flags);
noctty = smode & 0x8000;
nmode = smode &
(0x0001 | 0x0002 | 0x0008 | 0x0040 | 0x0200 | 0x0400 | 0x0800);
nmode |= ((smode & (0x0004 | 0x1000 | 0x4000)) ? O_NONBLOCK : 0);
nmode |= ((smode & 0x0080) ? O_SHLOCK : 0);
nmode |= ((smode & 0x0100) ? O_EXLOCK : 0);
nmode |= ((smode & 0x2000) ? O_FSYNC : 0);
SCARG(&open_ua, path) = SCARG(uap, path);
SCARG(&open_ua, flags) = nmode;
SCARG(&open_ua, mode) = SCARG(uap, mode);
ret = sys_open(l, &open_ua, retval);
/* XXXSMP */
if (!ret && !noctty && SESS_LEADER(p) && !(p->p_lflag & PL_CONTROLT)) {
file_t *fp;
int fd;
fd = (int)*retval;
fp = fd_getfile(fd);
/* ignore any error, just give it a try */
if (fp != NULL) {
if (fp->f_type == DTYPE_VNODE)
(fp->f_ops->fo_ioctl)(fp, TIOCSCTTY, NULL);
fd_putfile(fd);
}
}
return ret;
}
int
sunos_sys_ustat(struct lwp *l, const struct sunos_sys_ustat_args *uap, register_t *retval)
{
struct sunos_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 sunos_ustat)
*/
if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0)
return (error);
return 0;
}
int
sunos_sys_quotactl(struct lwp *l, const struct sunos_sys_quotactl_args *uap, register_t *retval)
{
return EINVAL;
}
int
sunos_sys_vhangup(struct lwp *l, const void *v, register_t *retval)
{
struct proc *p = l->l_proc;
struct session *sp = p->p_session;
if (sp->s_ttyvp == 0)
return 0;
if (sp->s_ttyp && sp->s_ttyp->t_session == sp && sp->s_ttyp->t_pgrp)
pgsignal(sp->s_ttyp->t_pgrp, SIGHUP, 1);
(void) ttywait(sp->s_ttyp);
if (sp->s_ttyvp)
VOP_REVOKE(sp->s_ttyvp, REVOKEALL);
if (sp->s_ttyvp)
vrele(sp->s_ttyvp);
sp->s_ttyvp = NULL;
return 0;
}
static int
sunstatfs(struct statvfs *sp, void *buf)
{
struct sunos_statfs ssfs;
memset(&ssfs, 0, sizeof ssfs);
ssfs.f_type = 0;
ssfs.f_bsize = sp->f_bsize;
ssfs.f_blocks = sp->f_blocks;
ssfs.f_bfree = sp->f_bfree;
ssfs.f_bavail = sp->f_bavail;
ssfs.f_files = sp->f_files;
ssfs.f_ffree = sp->f_ffree;
ssfs.f_fsid = sp->f_fsidx;
return copyout((void *)&ssfs, buf, sizeof ssfs);
}
int
sunos_sys_statfs(struct lwp *l, const struct sunos_sys_statfs_args *uap, register_t *retval)
{
struct mount *mp;
struct statvfs *sp;
int error;
struct vnode *vp;
error = namei_simple_user(SCARG(uap, path),
NSM_FOLLOW_TRYEMULROOT, &vp);
if (error != 0)
return (error);
mp = vp->v_mount;
sp = &mp->mnt_stat;
vrele(vp);
if ((error = VFS_STATVFS(mp, sp)) != 0)
return (error);
sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK;
return sunstatfs(sp, (void *)SCARG(uap, buf));
}
int
sunos_sys_fstatfs(struct lwp *l, const struct sunos_sys_fstatfs_args *uap, register_t *retval)
{
file_t *fp;
struct mount *mp;
struct statvfs *sp;
int error;
/* fd_getvnode() will use the descriptor for us */
if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0)
return (error);
mp = fp->f_vnode->v_mount;
sp = &mp->mnt_stat;
if ((error = VFS_STATVFS(mp, sp)) != 0)
goto out;
sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK;
error = sunstatfs(sp, (void *)SCARG(uap, buf));
out:
fd_putfile(SCARG(uap, fd));
return (error);
}
int
sunos_sys_exportfs(struct lwp *l, const struct sunos_sys_exportfs_args *uap, register_t *retval)
{
/*
* XXX: should perhaps translate into a mount(2)
* with MOUNT_EXPORT?
*/
return 0;
}
int
sunos_sys_mknod(struct lwp *l, const struct sunos_sys_mknod_args *uap, register_t *retval)
{
struct sys_mkfifo_args fifo_ua;
if (S_ISFIFO(SCARG(uap, mode))) {
SCARG(&fifo_ua, path) = SCARG(uap, path);
SCARG(&fifo_ua, mode) = SCARG(uap, mode);
return sys_mkfifo(l, &fifo_ua, retval);
}
return compat_50_sys_mknod(l,
(const struct compat_50_sys_mknod_args *)uap, retval);
}
#define SUNOS_SC_ARG_MAX 1
#define SUNOS_SC_CHILD_MAX 2
#define SUNOS_SC_CLK_TCK 3
#define SUNOS_SC_NGROUPS_MAX 4
#define SUNOS_SC_OPEN_MAX 5
#define SUNOS_SC_JOB_CONTROL 6
#define SUNOS_SC_SAVED_IDS 7
#define SUNOS_SC_VERSION 8
int
sunos_sys_sysconf(struct lwp *l, const struct sunos_sys_sysconf_args *uap, register_t *retval)
{
switch(SCARG(uap, name)) {
case SUNOS_SC_ARG_MAX:
*retval = ARG_MAX;
break;
case SUNOS_SC_CHILD_MAX:
*retval = maxproc;
break;
case SUNOS_SC_CLK_TCK:
*retval = 60; /* should this be `hz', ie. 100? */
break;
case SUNOS_SC_NGROUPS_MAX:
*retval = NGROUPS_MAX;
break;
case SUNOS_SC_OPEN_MAX:
*retval = maxfiles;
break;
case SUNOS_SC_JOB_CONTROL:
*retval = 1;
break;
case SUNOS_SC_SAVED_IDS:
#ifdef _POSIX_SAVED_IDS
*retval = 1;
#else
*retval = 0;
#endif
break;
case SUNOS_SC_VERSION:
*retval = 198808;
break;
default:
return EINVAL;
}
return 0;
}
#define SUNOS_RLIMIT_NOFILE 6 /* Other RLIMIT_* are the same */
#define SUNOS_RLIM_NLIMITS 7
int
sunos_sys_getrlimit(struct lwp *l, const struct sunos_sys_getrlimit_args *uap, register_t *retval)
{
struct compat_43_sys_getrlimit_args ua_43;
SCARG(&ua_43, which) = SCARG(uap, which);
SCARG(&ua_43, rlp) = SCARG(uap, rlp);
if (SCARG(uap, which) >= SUNOS_RLIM_NLIMITS)
return EINVAL;
if (SCARG(uap, which) == SUNOS_RLIMIT_NOFILE)
SCARG(&ua_43, which) = RLIMIT_NOFILE;
return compat_43_sys_getrlimit(l, &ua_43, retval);
}
int
sunos_sys_setrlimit(struct lwp *l, const struct sunos_sys_setrlimit_args *uap, register_t *retval)
{
struct compat_43_sys_setrlimit_args ua_43;
SCARG(&ua_43, which) = SCARG(uap, which);
SCARG(&ua_43, rlp) = SCARG(uap, rlp);
if (SCARG(uap, which) >= SUNOS_RLIM_NLIMITS)
return EINVAL;
if (SCARG(uap, which) == SUNOS_RLIMIT_NOFILE)
SCARG(&ua_43, which) = RLIMIT_NOFILE;
return compat_43_sys_setrlimit(l, &ua_43, retval);
}
/* for the m68k machines */
#ifndef PT_GETFPREGS
#define PT_GETFPREGS -1
#endif
#ifndef PT_SETFPREGS
#define PT_SETFPREGS -1
#endif
static const int sreq2breq[] = {
PT_TRACE_ME, PT_READ_I, PT_READ_D, -1,
PT_WRITE_I, PT_WRITE_D, -1, PT_CONTINUE,
PT_KILL, -1, PT_ATTACH, PT_DETACH,
PT_GETREGS, PT_SETREGS, PT_GETFPREGS, PT_SETFPREGS
};
static const int nreqs = sizeof(sreq2breq) / sizeof(sreq2breq[0]);
int
sunos_sys_ptrace(struct lwp *l, const struct sunos_sys_ptrace_args *uap, register_t *retval)
{
struct sys_ptrace_args pa;
int req;
#define sys_ptrace sysent[SYS_ptrace].sy_call
if (sys_ptrace == sys_nosys)
return ENOSYS;
req = SCARG(uap, req);
if (req < 0 || req >= nreqs)
return (EINVAL);
req = sreq2breq[req];
if (req == -1)
return (EINVAL);
SCARG(&pa, req) = req;
SCARG(&pa, pid) = (pid_t)SCARG(uap, pid);
SCARG(&pa, addr) = (void *)SCARG(uap, addr);
SCARG(&pa, data) = SCARG(uap, data);
return sys_ptrace(l, &pa, retval);
}
/*
* SunOS reboot system call (for compatibility).
* Sun lets you pass in a boot string which the PROM
* saves and provides to the next boot program.
*/
#define SUNOS_RB_ASKNAME 0x001
#define SUNOS_RB_SINGLE 0x002
#define SUNOS_RB_NOSYNC 0x004
#define SUNOS_RB_HALT 0x008
#define SUNOS_RB_DUMP 0x080
#define SUNOS_RB_STRING 0x200
static struct sunos_howto_conv {
int sun_howto;
int bsd_howto;
} sunos_howto_conv[] = {
{ SUNOS_RB_ASKNAME, RB_ASKNAME },
{ SUNOS_RB_SINGLE, RB_SINGLE },
{ SUNOS_RB_NOSYNC, RB_NOSYNC },
{ SUNOS_RB_HALT, RB_HALT },
{ SUNOS_RB_DUMP, RB_DUMP },
{ SUNOS_RB_STRING, RB_STRING },
{ 0x000, 0 },
};
int
sunos_sys_reboot(struct lwp *l, const struct sunos_sys_reboot_args *uap, register_t *retval)
{
struct sys_reboot_args ua;
struct sunos_howto_conv *convp;
int error, bsd_howto, sun_howto;
char *bootstr;
char bs[128];
if ((error = kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_REBOOT,
0, NULL, NULL, NULL)) != 0)
return (error);
/*
* Convert howto bits to BSD format.
*/
sun_howto = SCARG(uap, howto);
bsd_howto = 0;
convp = sunos_howto_conv;
while (convp->sun_howto) {
if (sun_howto & convp->sun_howto)
bsd_howto |= convp->bsd_howto;
convp++;
}
/*
* Sun RB_STRING (Get user supplied bootstring.)
* If the machine supports passing a string to the
* next booted kernel.
*/
if (sun_howto & SUNOS_RB_STRING) {
error = copyinstr(SCARG(uap, bootstr), bs, sizeof(bs), 0);
if (error)
bootstr = NULL;
else
bootstr = bs;
} else
bootstr = NULL;
SCARG(&ua, opt) = bsd_howto;
SCARG(&ua, bootstr) = bootstr;
sys_reboot(l, &ua, retval);
return(0);
}
/*
* Generalized interface signal handler, 4.3-compatible.
*/
/* ARGSUSED */
int
sunos_sys_sigvec(struct lwp *l, const struct sunos_sys_sigvec_args *uap, register_t *retval)
{
/* {
syscallarg(int) signum;
syscallarg(struct sigvec *) nsv;
syscallarg(struct sigvec *) osv;
} */
struct sigvec nsv, osv;
struct sigaction nsa, osa;
int error;
/*XXX*/extern void compat_43_sigvec_to_sigaction
(const struct sigvec *, struct sigaction *);
/*XXX*/extern void compat_43_sigaction_to_sigvec
(const struct sigaction *, struct sigvec *);
if (SCARG(uap, nsv)) {
error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv));
if (error != 0)
return (error);
/*
* SunOS uses the mask 0x0004 as SV_RESETHAND
* meaning: `reset to SIG_DFL on delivery'.
* We support only the bits in: 0xF
* (those bits are the same as ours)
*/
if (nsv.sv_flags & ~0xF)
return (EINVAL);
compat_43_sigvec_to_sigaction(&nsv, &nsa);
}
error = sigaction1(l, SCARG(uap, signum),
SCARG(uap, nsv) ? &nsa : 0,
SCARG(uap, osv) ? &osa : 0,
NULL, 0);
if (error != 0)
return (error);
if (SCARG(uap, osv)) {
compat_43_sigaction_to_sigvec(&osa, &osv);
error = copyout(&osv, SCARG(uap, osv), sizeof(osv));
if (error != 0)
return (error);
}
return (0);
}