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b7e23e826c
freebsd-dev/sys/alpha/osf1/osf1_misc.c
John Baldwin b7e23e826c - Replace wait1() with a kern_wait() function that accepts the pid, 
options, status pointer and rusage pointer as arguments.  It is up to
  the caller to copyout the status and rusage to userland if needed.  This
  lets us axe the 'compat' argument and hide all that functionality in
  owait(), by the way.  This also cleans up some locking in kern_wait()
  since it no longer has to drop locks around copyout() since all the
  copyout()'s are deferred.
- Convert owait(), wait4(), and the various ABI compat wait() syscalls to
  use kern_wait() rather than wait1() or wait4().  This removes a bit
  more stackgap usage.

Tested on:	i386
Compiled on:	i386, alpha, amd64
2004-03-17 20:00:00 +00:00

1823 lines
37 KiB
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/* $NetBSD: osf1_misc.c,v 1.14 1998/05/20 16:34:29 chs Exp $ */
/*
* Copyright (c) 1994, 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
/*
* Additional Copyright (c) 1999 by Andrew Gallatin
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/exec.h>
#include <sys/fcntl.h>
#include <sys/filedesc.h>
#include <sys/imgact.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/file.h> /* Must come after sys/malloc.h */
#include <sys/mman.h>
#include <sys/module.h>
#include <sys/mount.h>
#include <sys/mutex.h>
#include <sys/namei.h>
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/reboot.h>
#include <sys/resource.h>
#include <sys/resourcevar.h>
#include <sys/selinfo.h>
#include <sys/pipe.h> /* Must come after sys/selinfo.h */
#include <sys/signal.h>
#include <sys/signalvar.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/stat.h>
#include <sys/sysctl.h>
#include <sys/sysent.h>
#include <sys/sysproto.h>
#include <sys/systm.h>
#include <sys/unistd.h>
#include <sys/user.h>
#include <sys/utsname.h>
#include <sys/vnode.h>
#include <sys/wait.h>
#include <vm/vm.h>
#include <vm/vm_kern.h>
#include <vm/vm_param.h>
#include <vm/pmap.h>
#include <vm/vm_map.h>
#include <vm/vm_extern.h>
#include <machine/cpu.h>
#include <machine/cpuconf.h>
#include <machine/fpu.h>
#include <machine/md_var.h>
#include <machine/rpb.h>
#include <alpha/osf1/exec_ecoff.h>
#include <alpha/osf1/osf1_signal.h>
#include <alpha/osf1/osf1_proto.h>
#include <alpha/osf1/osf1_syscall.h>
#include <alpha/osf1/osf1_util.h>
#include <alpha/osf1/osf1.h>
static void cvtstat2osf1(struct stat *, struct osf1_stat *);
static int osf2bsd_pathconf(int *);
static const char osf1_emul_path[] = "/compat/osf1";
/*
* [ taken from the linux emulator ]
* Search an alternate path before passing pathname arguments on
* to system calls. Useful for keeping a separate 'emulation tree'.
*
* If cflag is set, we check if an attempt can be made to create
* the named file, i.e. we check if the directory it should
* be in exists.
*/
int
osf1_emul_find(td, sgp, prefix, path, pbuf, cflag)
struct thread *td;
caddr_t *sgp; /* Pointer to stackgap memory */
const char *prefix;
char *path;
char **pbuf;
int cflag;
{
int error;
size_t len, sz;
char *buf, *cp, *ptr;
struct ucred *ucred;
struct nameidata nd;
struct nameidata ndroot;
struct vattr vat;
struct vattr vatroot;
buf = (char *) malloc(MAXPATHLEN, M_TEMP, M_WAITOK);
*pbuf = path;
for (ptr = buf; (*ptr = *prefix) != '\0'; ptr++, prefix++)
continue;
sz = MAXPATHLEN - (ptr - buf);
/*
* If sgp is not given then the path is already in kernel space
*/
if (sgp == NULL)
error = copystr(path, ptr, sz, &len);
else
error = copyinstr(path, ptr, sz, &len);
if (error) {
free(buf, M_TEMP);
return error;
}
if (*ptr != '/') {
free(buf, M_TEMP);
return EINVAL;
}
/*
* We know that there is a / somewhere in this pathname.
* Search backwards for it, to find the file's parent dir
* to see if it exists in the alternate tree. If it does,
* and we want to create a file (cflag is set). We don't
* need to worry about the root comparison in this case.
*/
if (cflag) {
for (cp = &ptr[len] - 1; *cp != '/'; cp--)
;
*cp = '\0';
NDINIT(&nd, LOOKUP, FOLLOW, UIO_SYSSPACE, buf, td);
if ((error = namei(&nd)) != 0) {
free(buf, M_TEMP);
return error;
}
*cp = '/';
} else {
NDINIT(&nd, LOOKUP, FOLLOW, UIO_SYSSPACE, buf, td);
if ((error = namei(&nd)) != 0) {
free(buf, M_TEMP);
return error;
}
/*
* We now compare the vnode of the osf1_root to the one
* vnode asked. If they resolve to be the same, then we
* ignore the match so that the real root gets used.
* This avoids the problem of traversing "../.." to find the
* root directory and never finding it, because "/" resolves
* to the emulation root directory. This is expensive :-(
*/
NDINIT(&ndroot, LOOKUP, FOLLOW, UIO_SYSSPACE, osf1_emul_path,
td);
if ((error = namei(&ndroot)) != 0) {
/* Cannot happen! */
free(buf, M_TEMP);
vrele(nd.ni_vp);
return error;
}
ucred = td->td_ucred;
if ((error = VOP_GETATTR(nd.ni_vp, &vat, ucred, td)) != 0) {
goto bad;
}
if ((error = VOP_GETATTR(ndroot.ni_vp, &vatroot, ucred,
td)) != 0) {
goto bad;
}
if (vat.va_fsid == vatroot.va_fsid &&
vat.va_fileid == vatroot.va_fileid) {
error = ENOENT;
goto bad;
}
}
if (sgp == NULL)
*pbuf = buf;
else {
sz = &ptr[len] - buf;
*pbuf = stackgap_alloc(sgp, sz + 1);
error = copyout(buf, *pbuf, sz);
free(buf, M_TEMP);
}
vrele(nd.ni_vp);
if (!cflag)
vrele(ndroot.ni_vp);
return error;
bad:
vrele(ndroot.ni_vp);
vrele(nd.ni_vp);
free(buf, M_TEMP);
return error;
}
int
osf1_open(td, uap)
struct thread *td;
struct osf1_open_args *uap;
{
struct open_args /* {
syscallarg(char *) path;
syscallarg(int) flags;
syscallarg(int) mode;
} */ a;
caddr_t sg;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, uap->path);
a.path = uap->path;
a.flags = uap->flags; /* XXX translate */
a.mode = uap->mode;
return open(td, &a);
}
extern long totalphysmem;
int
osf1_getsysinfo(td, uap)
struct thread *td;
struct osf1_getsysinfo_args *uap;
{
int error, retval;
int ncpus = 1; /* XXX until SMP */
int ophysmem;
int unit;
long percpu;
long proctype;
struct osf1_cpu_info cpuinfo;
error = retval = 0;
switch(uap->op) {
case OSF_GET_MAX_UPROCS:
error = copyout(&maxprocperuid, uap->buffer,
sizeof(maxprocperuid));
retval = 1;
break;
case OSF_GET_PHYSMEM:
ophysmem = totalphysmem * (PAGE_SIZE >> 10);
error = copyout(&ophysmem, uap->buffer,
sizeof(ophysmem));
retval = 1;
break;
case OSF_GET_MAX_CPU:
case OSF_GET_CPUS_IN_BOX:
error = copyout(&ncpus, uap->buffer,
sizeof(ncpus));
retval = 1;
break;
case OSF_GET_IEEE_FP_CONTROL:
error = copyout(&td->td_pcb->pcb_fp_control,uap->buffer,
sizeof(td->td_pcb->pcb_fp_control));
retval = 1;
break;
case OSF_GET_CPU_INFO:
if (uap->nbytes < sizeof(cpuinfo))
error = EINVAL;
else {
bzero(&cpuinfo, sizeof(cpuinfo));
unit = alpha_pal_whami();
cpuinfo.current_cpu = unit;
cpuinfo.cpus_in_box = ncpus;
cpuinfo.cpu_type =
LOCATE_PCS(hwrpb, unit)->pcs_proc_type;
cpuinfo.ncpus = ncpus;
cpuinfo.cpus_present = ncpus;
cpuinfo.cpus_running = ncpus;
cpuinfo.cpu_binding = 1;
cpuinfo.cpu_ex_binding = 0;
cpuinfo.mhz = hwrpb->rpb_cc_freq / 1000000;
error = copyout(&cpuinfo, uap->buffer,
sizeof(cpuinfo));
retval = 1;
}
break;
case OSF_GET_PROC_TYPE:
if(uap->nbytes < sizeof(proctype))
error = EINVAL;
else {
unit = alpha_pal_whami();
proctype = LOCATE_PCS(hwrpb, unit)->pcs_proc_type;
error = copyout (&proctype, uap->buffer,
sizeof(percpu));
retval = 1;
}
break;
case OSF_GET_HWRPB: { /* note -- osf/1 doesn't have rpb_tbhint[8] */
unsigned long rpb_size;
rpb_size = (unsigned long)&hwrpb->rpb_tbhint -
(unsigned long)hwrpb;
if(uap->nbytes < rpb_size){
uprintf("nbytes = %ld, sizeof(struct rpb) = %ld\n",
uap->nbytes, rpb_size);
error = EINVAL;
}
else {
error = copyout(hwrpb, uap->buffer, rpb_size);
retval = 1;
}
}
break;
case OSF_GET_PLATFORM_NAME:
error = copyout(platform.model, uap->buffer,
strlen(platform.model));
retval = 1;
break;
default:
printf("osf1_getsysinfo called with unknown op=%ld\n", uap->op);
return EINVAL;
}
td->td_retval[0] = retval;
return(error);
}
int
osf1_setsysinfo(td, uap)
struct thread *td;
struct osf1_setsysinfo_args *uap;
{
int error;
error = 0;
switch(uap->op) {
case OSF_SET_IEEE_FP_CONTROL:
{
u_int64_t temp, *fp_control;
if ((error = copyin(uap->buffer, &temp, sizeof(temp))))
break;
fp_control = &td->td_pcb->pcb_fp_control;
*fp_control = temp & IEEE_TRAP_ENABLE_MASK;
break;
}
default:
uprintf("osf1_setsysinfo called with op=%ld\n", uap->op);
/*error = EINVAL;*/
}
return (error);
}
int
osf1_getrlimit(td, uap)
struct thread *td;
struct osf1_getrlimit_args *uap;
{
struct rlimit bsd_rlim;
struct proc *p;
int which;
if (uap->which >= OSF1_RLIMIT_NLIMITS)
return (EINVAL);
if (uap->which <= OSF1_RLIMIT_LASTCOMMON)
which = uap->which;
else if (uap->which == OSF1_RLIMIT_NOFILE)
which = RLIMIT_NOFILE;
else
return (0);
p = td->td_proc;
PROC_LOCK(p);
lim_rlimit(p, which, &bsd_rlim);
PROC_UNLOCK(p);
return (copyout(&bsd_rlim, uap->rlp, sizeof(bsd_rlim)));
}
int
osf1_setrlimit(td, uap)
struct thread *td;
struct osf1_setrlimit_args *uap;
{
struct rlimit bsd_rlim;
int error, which;
if (uap->which >= OSF1_RLIMIT_NLIMITS)
return (EINVAL);
if (uap->which <= OSF1_RLIMIT_LASTCOMMON)
which = uap->which;
else if (uap->which == OSF1_RLIMIT_NOFILE)
which = RLIMIT_NOFILE;
else
return (0);
error = copyin(uap->rlp, &bsd_rlim, sizeof(bsd_rlim));
if (error)
return (error);
return (kern_setrlimit(td, which, &bsd_rlim));
}
/*
* As linux says, this is a total guess.
*/
int
osf1_set_program_attributes(td, uap)
struct thread *td;
struct osf1_set_program_attributes_args *uap;
{
struct vmspace *vm = td->td_proc->p_vmspace;
vm->vm_taddr = (caddr_t)uap->text_start;
vm->vm_tsize = btoc(round_page(uap->text_len));
vm->vm_daddr = (caddr_t)uap->bss_start;
vm->vm_dsize = btoc(round_page(uap->bss_len));
return(KERN_SUCCESS);
}
int
osf1_mmap(td, uap)
struct thread *td;
struct osf1_mmap_args *uap;
{
struct mmap_args /* {
syscallarg(caddr_t) addr;
syscallarg(size_t) len;
syscallarg(int) prot;
syscallarg(int) flags;
syscallarg(int) fd;
syscallarg(long) pad;
syscallarg(off_t) pos;
} */ a;
int retval;
vm_map_t map;
vm_offset_t addr, len, newaddr;
GIANT_REQUIRED;
a.addr = uap->addr;
a.len = uap->len;
a.prot = uap->prot;
a.fd = uap->fd;
a.pad = 0;
a.pos = uap->pos;
a.flags = 0;
/*
* OSF/1's mmap, unlike FreeBSD's, does its best to map memory at the
* user's requested address, even if MAP_FIXED is not set. Here we
* try to replicate this behaviour as much as we can because some
* applications (like /sbin/loader) depend on having things put as
* close to where they've requested as possible.
*/
if (uap->addr != NULL)
addr = round_page((vm_offset_t)a.addr);
else
/*
* Try to use the apparent OSF/1 default placement of 0x10000 for
* NULL addrs, this helps to prevent non-64 bit clean binaries from
* SEGV'ing.
*/
addr = round_page((vm_offset_t)0x10000UL);
len = (vm_offset_t)a.len;
map = &td->td_proc->p_vmspace->vm_map;
if (!vm_map_findspace(map, addr, len, &newaddr)) {
a.addr = (caddr_t) newaddr;
a.flags |= (MAP_FIXED);
}
#ifdef DEBUG
else
uprintf("osf1_mmap:vm_map_findspace failed for: %p 0x%lx\n",
(caddr_t)addr, len);
#endif
if (uap->flags & OSF1_MAP_SHARED)
a.flags |= MAP_SHARED;
if (uap->flags & OSF1_MAP_PRIVATE)
a.flags |= MAP_PRIVATE;
switch (uap->flags & OSF1_MAP_TYPE) {
case OSF1_MAP_ANONYMOUS:
a.flags |= MAP_ANON;
break;
case OSF1_MAP_FILE:
a.flags |= MAP_FILE;
break;
default:
return (EINVAL);
}
if (uap->flags & OSF1_MAP_FIXED)
a.flags |= MAP_FIXED;
if (uap->flags & OSF1_MAP_HASSEMAPHORE)
a.flags |= MAP_HASSEMAPHORE;
if (uap->flags & OSF1_MAP_INHERIT)
return (EINVAL);
if (uap->flags & OSF1_MAP_UNALIGNED)
return (EINVAL);
/*
* Emulate an osf/1 bug: Apparently, mmap'ed segments are always
* readable even if the user doesn't or in PROT_READ. This causes
* some buggy programs to segv.
*/
a.prot |= PROT_READ;
retval = mmap(td, &a);
#ifdef DEBUG
uprintf(
"\nosf1_mmap: addr=%p (%p), len = 0x%lx, prot=0x%x, fd=%d, pad=0, pos=0x%lx",
uap->addr, a.addr,uap->len, uap->prot,
uap->fd, uap->pos);
printf(" flags = 0x%x\n",uap->flags);
#endif
return (retval);
}
int
osf1_msync(td, uap)
struct thread *td;
struct osf1_msync_args *uap;
{
struct msync_args a;
a.addr = uap->addr;
a.len = uap->len;
a.flags = 0;
if(uap->flags & OSF1_MS_ASYNC)
a.flags |= MS_ASYNC;
if(uap->flags & OSF1_MS_SYNC)
a.flags |= MS_SYNC;
if(uap->flags & OSF1_MS_INVALIDATE)
a.flags |= MS_INVALIDATE;
return(msync(td, &a));
}
struct osf1_stat {
int32_t st_dev;
u_int32_t st_ino;
u_int32_t st_mode;
u_int16_t st_nlink;
u_int32_t st_uid;
u_int32_t st_gid;
int32_t st_rdev;
u_int64_t st_size;
int32_t st_atime_sec;
int32_t st_spare1;
int32_t st_mtime_sec;
int32_t st_spare2;
int32_t st_ctime_sec;
int32_t st_spare3;
u_int32_t st_blksize;
int32_t st_blocks;
u_int32_t st_flags;
u_int32_t st_gen;
};
/*
* Get file status; this version follows links.
*/
/* ARGSUSED */
int
osf1_stat(td, uap)
struct thread *td;
struct osf1_stat_args *uap;
{
int error;
struct stat sb;
struct osf1_stat osb;
struct nameidata nd;
caddr_t sg;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, uap->path);
NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE,
uap->path, td);
if ((error = namei(&nd)))
return (error);
error = vn_stat(nd.ni_vp, &sb, td->td_ucred, NOCRED, td);
vput(nd.ni_vp);
if (error)
return (error);
cvtstat2osf1(&sb, &osb);
error = copyout((caddr_t)&osb, (caddr_t)uap->ub, sizeof (osb));
return (error);
}
/*
* Get file status; this version does not follow links.
*/
/* ARGSUSED */
int
osf1_lstat(td, uap)
struct thread *td;
register struct osf1_lstat_args *uap;
{
struct stat sb;
struct osf1_stat osb;
int error;
struct nameidata nd;
caddr_t sg = stackgap_init();
CHECKALTEXIST(td, &sg, uap->path);
NDINIT(&nd, LOOKUP, NOFOLLOW | LOCKLEAF, UIO_USERSPACE,
uap->path, td);
if ((error = namei(&nd)))
return (error);
error = vn_stat(nd.ni_vp, &sb, td->td_ucred, NOCRED, td);
vput(nd.ni_vp);
if (error)
return (error);
cvtstat2osf1(&sb, &osb);
error = copyout((caddr_t)&osb, (caddr_t)uap->ub, sizeof (osb));
return (error);
}
/*
* Return status information about a file descriptor.
*/
int
osf1_fstat(td, uap)
struct thread *td;
register struct osf1_fstat_args *uap;
{
struct file *fp;
struct stat ub;
struct osf1_stat oub;
int error;
if ((error = fget(td, uap->fd, &fp)) != 0)
return (error);
error = fo_stat(fp, &ub, td->td_ucred, td);
fdrop(fp, td);
cvtstat2osf1(&ub, &oub);
if (error == 0)
error = copyout((caddr_t)&oub, (caddr_t)uap->sb,
sizeof (oub));
return (error);
}
#define bsd2osf_dev(dev) (umajor(dev) << 20 | uminor(dev))
/*
* Convert from a stat structure to an osf1 stat structure.
*/
static void
cvtstat2osf1(st, ost)
struct stat *st;
struct osf1_stat *ost;
{
ost->st_dev = bsd2osf_dev(st->st_dev);
ost->st_ino = st->st_ino;
ost->st_mode = st->st_mode;
ost->st_nlink = st->st_nlink;
ost->st_uid = st->st_uid == -2 ? (u_int16_t) -2 : st->st_uid;
ost->st_gid = st->st_gid == -2 ? (u_int16_t) -2 : st->st_gid;
ost->st_rdev = bsd2osf_dev(st->st_rdev);
ost->st_size = st->st_size;
ost->st_atime_sec = st->st_atime;
ost->st_spare1 = 0;
ost->st_mtime_sec = st->st_mtime;
ost->st_spare2 = 0;
ost->st_ctime_sec = st->st_ctime;
ost->st_spare3 = 0;
ost->st_blksize = st->st_blksize;
ost->st_blocks = st->st_blocks;
ost->st_flags = st->st_flags;
ost->st_gen = st->st_gen;
}
int
osf1_mknod(td, uap)
struct thread *td;
struct osf1_mknod_args *uap;
{
printf("osf1_mknod no longer implemented\n");
return ENOSYS;
}
int
osf1_access(td, uap)
struct thread *td;
struct osf1_access_args *uap;
{
caddr_t sg;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, uap->path);
return access(td, (struct access_args *)uap);
}
struct osf1_flock {
short l_type;
short l_whence;
off_t l_start;
off_t l_len;
pid_t l_pid;
};
int
osf1_fcntl(td, uap)
struct thread *td;
struct osf1_fcntl_args *uap;
{
int error;
long tmp;
caddr_t oarg, sg;
struct fcntl_args a;
struct osf1_flock osf_flock;
struct flock bsd_flock;
struct flock *nflock;
error = 0;
switch (uap->cmd) {
case F_SETFL:
a.fd = uap->fd;
a.cmd = F_SETFL;
/* need to translate flags here */
tmp = 0;
if ((long)uap->arg & OSF1_FNONBLOCK)
tmp |= FNONBLOCK;
if ((long)uap->arg & OSF1_FAPPEND)
tmp |= FAPPEND;
if ((long)uap->arg & OSF1_FDEFER)
tmp |= FDEFER;
if ((long)uap->arg & OSF1_FASYNC)
tmp |= FASYNC;
if ((long)uap->arg & OSF1_FCREAT)
tmp |= O_CREAT;
if ((long)uap->arg & OSF1_FTRUNC)
tmp |= O_TRUNC;
if ((long)uap->arg & OSF1_FEXCL)
tmp |= O_EXCL;
if ((long)uap->arg & OSF1_FNDELAY)
tmp |= FNDELAY;
if ((long)uap->arg & OSF1_FSYNC)
tmp |= FFSYNC;
a.arg = tmp;
error = fcntl(td, &a);
break;
case F_SETLK:
case F_SETLKW:
case F_GETLK:
/*
* The OSF/1 flock stucture has a different order than
* the BSD one, but all else is the same. We must
* reorder the one we've gotten so that flock() groks it.
*/
if ((error = copyin(uap->arg, &osf_flock, sizeof(osf_flock))))
return error;
bsd_flock.l_type = osf_flock.l_type;
bsd_flock.l_whence = osf_flock.l_whence;
bsd_flock.l_start = osf_flock.l_start;
bsd_flock.l_len = osf_flock.l_len;
bsd_flock.l_pid = osf_flock.l_pid;
sg = stackgap_init();
nflock = stackgap_alloc(&sg, sizeof(struct flock));
if ((error = copyout(&bsd_flock, nflock, sizeof(bsd_flock))) != 0)
return error;
oarg = uap->arg;
uap->arg = nflock;
error = fcntl(td, (struct fcntl_args *) uap);
/* if (error) {
printf("fcntl called with cmd=%d, args=0x%lx\n returns %d\n",uap->cmd,(long)uap->arg,error);
printf("bsd_flock.l_type = 0x%x\n", bsd_flock.l_type);
printf("bsd_flock.l_whence = 0x%x\n", bsd_flock.l_whence);
printf("bsd_flock.l_start = 0x%lx\n", bsd_flock.l_start);
printf("bsd_flock.l_len = 0x%lx\n", bsd_flock.l_len);
printf("bsd_flock.l_pid = 0x%x\n", bsd_flock.l_pid);
}
*/
if ((uap->cmd == F_GETLK) && !error) {
osf_flock.l_type = F_UNLCK;
if ((error = copyout(&osf_flock, oarg,
sizeof(osf_flock))))
return error;
}
break;
default:
error = fcntl(td, (struct fcntl_args *) uap);
if ((uap->cmd == OSF1_F_GETFL) && !error ) {
tmp = td->td_retval[0] & O_ACCMODE;
if (td->td_retval[0] & FNONBLOCK)
tmp |= OSF1_FNONBLOCK;
if (td->td_retval[0] & FAPPEND)
tmp |= OSF1_FAPPEND;
if (td->td_retval[0] & FDEFER)
tmp |= OSF1_FDEFER;
if (td->td_retval[0] & FASYNC)
tmp |= OSF1_FASYNC;
if (td->td_retval[0] & O_CREAT)
tmp |= OSF1_FCREAT;
if (td->td_retval[0] & O_TRUNC)
tmp |= OSF1_FTRUNC;
if (td->td_retval[0] & O_EXCL)
tmp |= OSF1_FEXCL;
if (td->td_retval[0] & FNDELAY)
tmp |= OSF1_FNDELAY;
if (td->td_retval[0] & FFSYNC)
tmp |= OSF1_FSYNC;
td->td_retval[0] = tmp;
}
}
return (error);
}
#if 0
int
osf1_fcntl(td, uap)
struct thread *td;
struct osf1_fcntl_args *uap;
{
struct fcntl_args a;
long tmp;
int error;
a.fd = uap->fd;
switch (uap->cmd) {
case OSF1_F_DUPFD:
a.cmd = F_DUPFD;
a.arg = (long)uap->arg;
break;
case OSF1_F_GETFD:
a.cmd = F_GETFD;
a.arg = (long)uap->arg;
break;
case OSF1_F_SETFD:
a.cmd = F_SETFD;
a.arg = (long)uap->arg;
break;
case OSF1_F_GETFL:
a.cmd = F_GETFL;
a.arg = (long)uap->arg; /* ignored */
break;
case OSF1_F_SETFL:
a.cmd = F_SETFL;
tmp = 0;
if ((long)uap->arg & OSF1_FAPPEND)
tmp |= FAPPEND;
if ((long)uap->arg & OSF1_FNONBLOCK)
tmp |= FNONBLOCK;
if ((long)uap->arg & OSF1_FASYNC)
tmp |= FASYNC;
if ((long)uap->arg & OSF1_FSYNC)
tmp |= FFSYNC;
a.arg = tmp;
break;
default: /* XXX other cases */
return (EINVAL);
}
error = fcntl(td, &a);
if (error)
return error;
switch (uap->cmd) {
case OSF1_F_GETFL:
/* XXX */
break;
}
return error;
}
#endif
int
osf1_socket(td, uap)
struct thread *td;
struct osf1_socket_args *uap;
{
struct socket_args a;
if (uap->type > AF_LINK)
return (EINVAL); /* XXX After AF_LINK, divergence. */
a.domain = uap->domain;
a.type = uap->type;
a.protocol = uap->protocol;
return socket(td, &a);
}
int
osf1_sendto(td, uap)
struct thread *td;
register struct osf1_sendto_args *uap;
{
struct sendto_args a;
if (uap->flags & ~0x7f) /* unsupported flags */
return (EINVAL);
a.s = uap->s;
a.buf = uap->buf;
a.len = uap->len;
a.flags = uap->flags;
a.to = (caddr_t)uap->to;
a.tolen = uap->tolen;
return sendto(td, &a);
}
int
osf1_reboot(td, uap)
struct thread *td;
struct osf1_reboot_args *uap;
{
struct reboot_args a;
if (uap->opt & ~OSF1_RB_ALLFLAGS &&
uap->opt & (OSF1_RB_ALTBOOT|OSF1_RB_UNIPROC))
return (EINVAL);
a.opt = 0;
if (uap->opt & OSF1_RB_ASKNAME)
a.opt |= RB_ASKNAME;
if (uap->opt & OSF1_RB_SINGLE)
a.opt |= RB_SINGLE;
if (uap->opt & OSF1_RB_NOSYNC)
a.opt |= RB_NOSYNC;
if (uap->opt & OSF1_RB_HALT)
a.opt |= RB_HALT;
if (uap->opt & OSF1_RB_INITNAME)
a.opt |= RB_INITNAME;
if (uap->opt & OSF1_RB_DFLTROOT)
a.opt |= RB_DFLTROOT;
return reboot(td, &a);
}
int
osf1_lseek(td, uap)
struct thread *td;
struct osf1_lseek_args *uap;
{
struct lseek_args a;
a.fd = uap->fd;
a.pad = 0;
a.offset = uap->offset;
a.whence = uap->whence;
return lseek(td, &a);
}
/*
* OSF/1 defines _POSIX_SAVED_IDS, which means that our normal
* setuid() won't work.
*
* Instead, by P1003.1b-1993, setuid() is supposed to work like:
* If the process has appropriate [super-user] privileges, the
* setuid() function sets the real user ID, effective user
* ID, and the saved set-user-ID to uid.
* If the process does not have appropriate privileges, but uid
* is equal to the real user ID or the saved set-user-ID, the
* setuid() function sets the effective user ID to uid; the
* real user ID and saved set-user-ID remain unchanged by
* this function call.
*/
int
osf1_setuid(td, uap)
struct thread *td;
struct osf1_setuid_args *uap;
{
struct proc *p;
int error;
uid_t uid;
struct uidinfo *uip;
struct ucred *newcred, *oldcred;
p = td->td_proc;
uid = uap->uid;
newcred = crget();
uip = uifind(uid);
PROC_LOCK(p);
oldcred = p->p_ucred;
if ((error = suser_cred(p->p_ucred, PRISON_ROOT)) != 0 &&
uid != oldcred->cr_ruid && uid != oldcred->cr_svuid) {
PROC_UNLOCK(p);
uifree(uip);
crfree(newcred);
return (error);
}
crcopy(newcred, oldcred);
if (error == 0) {
if (uid != oldcred->cr_ruid) {
change_ruid(newcred, uip);
setsugid(p);
}
if (oldcred->cr_svuid != uid) {
change_svuid(newcred, uid);
setsugid(p);
}
}
if (newcred->cr_uid != uid) {
change_euid(newcred, uip);
setsugid(p);
}
p->p_ucred = newcred;
PROC_UNLOCK(p);
uifree(uip);
crfree(oldcred);
return (0);
}
/*
* OSF/1 defines _POSIX_SAVED_IDS, which means that our normal
* setgid() won't work.
*
* If you change "uid" to "gid" in the discussion, above, about
* setuid(), you'll get a correct description of setgid().
*/
int
osf1_setgid(td, uap)
struct thread *td;
struct osf1_setgid_args *uap;
{
struct proc *p;
int error;
gid_t gid;
struct ucred *newcred, *oldcred;
p = td->td_proc;
gid = uap->gid;
newcred = crget();
PROC_LOCK(p);
oldcred = p->p_ucred;
if (((error = suser_cred(p->p_ucred, PRISON_ROOT)) != 0 ) &&
gid != oldcred->cr_rgid && gid != oldcred->cr_svgid) {
PROC_UNLOCK(p);
crfree(newcred);
return (error);
}
crcopy(newcred, oldcred);
if (error == 0) {
if (gid != oldcred->cr_rgid) {
change_rgid(newcred, gid);
setsugid(p);
}
if (oldcred->cr_svgid != gid) {
change_svgid(newcred, gid);
setsugid(p);
}
}
if (newcred->cr_groups[0] != gid) {
change_egid(newcred, gid);
setsugid(p);
}
p->p_ucred = newcred;
PROC_UNLOCK(p);
crfree(oldcred);
return (0);
}
/*
* The structures end up being the same... but we can't be sure that
* the other word of our iov_len is zero!
*/
struct osf1_iovec {
char *iov_base;
int iov_len;
};
#define STACKGAPLEN 400
int
osf1_readv(td, uap)
struct thread *td;
struct osf1_readv_args *uap;
{
int error, osize, nsize, i;
caddr_t sg;
struct readv_args /* {
syscallarg(int) fd;
syscallarg(struct iovec *) iovp;
syscallarg(u_int) iovcnt;
} */ a;
struct osf1_iovec *oio;
struct iovec *nio;
sg = stackgap_init();
if (uap->iovcnt > (STACKGAPLEN / sizeof (struct iovec)))
return (EINVAL);
osize = uap->iovcnt * sizeof (struct osf1_iovec);
nsize = uap->iovcnt * sizeof (struct iovec);
oio = malloc(osize, M_TEMP, M_WAITOK);
nio = malloc(nsize, M_TEMP, M_WAITOK);
error = 0;
if ((error = copyin(uap->iovp, oio, osize)))
goto punt;
for (i = 0; i < uap->iovcnt; i++) {
nio[i].iov_base = oio[i].iov_base;
nio[i].iov_len = oio[i].iov_len;
}
a.fd = uap->fd;
a.iovp = stackgap_alloc(&sg, nsize);
a.iovcnt = uap->iovcnt;
if ((error = copyout(nio, (caddr_t)a.iovp, nsize)))
goto punt;
error = readv(td, &a);
punt:
free(oio, M_TEMP);
free(nio, M_TEMP);
return (error);
}
int
osf1_writev(td, uap)
struct thread *td;
struct osf1_writev_args *uap;
{
int error, i, nsize, osize;
caddr_t sg;
struct writev_args /* {
syscallarg(int) fd;
syscallarg(struct iovec *) iovp;
syscallarg(u_int) iovcnt;
} */ a;
struct osf1_iovec *oio;
struct iovec *nio;
sg = stackgap_init();
if (uap->iovcnt > (STACKGAPLEN / sizeof (struct iovec)))
return (EINVAL);
osize = uap->iovcnt * sizeof (struct osf1_iovec);
nsize = uap->iovcnt * sizeof (struct iovec);
oio = malloc(osize, M_TEMP, M_WAITOK);
nio = malloc(nsize, M_TEMP, M_WAITOK);
error = 0;
if ((error = copyin(uap->iovp, oio, osize)))
goto punt;
for (i = 0; i < uap->iovcnt; i++) {
nio[i].iov_base = oio[i].iov_base;
nio[i].iov_len = oio[i].iov_len;
}
a.fd = uap->fd;
a.iovp = stackgap_alloc(&sg, nsize);
a.iovcnt = uap->iovcnt;
if ((error = copyout(nio, (caddr_t)a.iovp, nsize)))
goto punt;
error = writev(td, &a);
punt:
free(oio, M_TEMP);
free(nio, M_TEMP);
return (error);
}
/*
* More of the stupid off_t padding!
*/
int
osf1_truncate(td, uap)
struct thread *td;
struct osf1_truncate_args *uap;
{
caddr_t sg;
struct truncate_args a;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, uap->path);
a.path = uap->path;
a.pad = 0;
a.length = uap->length;
return truncate(td, &a);
}
int
osf1_ftruncate(td, uap)
struct thread *td;
struct osf1_ftruncate_args *uap;
{
struct ftruncate_args a;
a.fd = uap->fd;
a.pad = 0;
a.length = uap->length;
return ftruncate(td, &a);
}
static int
osf2bsd_pathconf(name)
int *name;
{
switch (*name) {
case _OSF1_PC_LINK_MAX:
case _OSF1_PC_MAX_CANON:
case _OSF1_PC_MAX_INPUT:
case _OSF1_PC_NAME_MAX:
*name -= 10;
break;
case _OSF1_PC_PATH_MAX:
case _OSF1_PC_PIPE_BUF:
*name -= 9;
case _OSF1_PC_NO_TRUNC:
*name = _PC_NO_TRUNC;
break;
case _OSF1_PC_CHOWN_RESTRICTED:
*name = _PC_CHOWN_RESTRICTED;
break;
case _OSF1_PC_VDISABLE:
*name = _PC_VDISABLE;
break;
default:
return (EINVAL);
}
return 0;
}
int
osf1_pathconf(td, uap)
struct thread *td;
struct osf1_pathconf_args *uap;
{
if (osf2bsd_pathconf(&uap->name))
return (EINVAL);
else
return (pathconf(td, (void *)uap));
}
int
osf1_fpathconf(td, uap)
struct thread *td;
struct osf1_fpathconf_args *uap;
{
if (osf2bsd_pathconf(&uap->name))
return (EINVAL);
else
return (fpathconf(td, (void *)uap));
}
int
osf1_getrusage(td, uap)
struct thread *td;
struct osf1_getrusage_args *uap;
{
struct proc *p;
struct rusage *rup;
struct osf1_rusage oru;
p = td->td_proc;
switch (uap->who) {
case RUSAGE_SELF:
rup = &p->p_stats->p_ru;
mtx_lock_spin(&sched_lock);
calcru(p, &rup->ru_utime, &rup->ru_stime, NULL);
mtx_unlock_spin(&sched_lock);
break;
case RUSAGE_CHILDREN:
rup = &p->p_stats->p_cru;
break;
default:
return (EINVAL);
}
TV_CP(rup->ru_utime, oru.ru_utime);
TV_CP(rup->ru_stime, oru.ru_stime);
bcopy(&(rup->ru_first), &(oru.ru_first),
(&(oru.ru_last) - &(oru.ru_first)));
return (copyout((caddr_t)&oru, (caddr_t)uap->rusage,
sizeof (struct osf1_rusage)));
}
int
osf1_wait4(td, uap)
struct thread *td;
struct osf1_wait4_args *uap;
{
int error, status;
struct osf1_rusage oru;
struct rusage ru;
error = kern_wait(td, uap->pid, &status, uap->options, &ru);
if (error)
return (error);
if (uap->status != NULL)
error = copyout(&status, uap->status, sizeof(status));
if (uap->rusage != NULL && error == 0) {
TV_CP(ru.ru_utime, oru.ru_utime);
TV_CP(ru.ru_stime, oru.ru_stime);
bcopy(&ru.ru_first, &oru.ru_first,
(&(oru.ru_last) - &(oru.ru_first)));
error = copyout(&oru, uap->rusage, sizeof (struct osf1_rusage));
}
return (error);
}
int
osf1_madvise(td, uap)
struct thread *td;
struct osf1_madvise_args *uap;
{
/* XXX */
return EINVAL;
}
int
osf1_execve(td, uap)
struct thread *td;
struct osf1_execve_args *uap;
{
caddr_t sg;
struct execve_args ap;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, uap->path);
ap.fname = uap->path;
ap.argv = uap->argp;
ap.envv = uap->envp;
return execve(td, &ap);
}
int
osf1_usleep_thread(td, uap)
struct thread *td;
struct osf1_usleep_thread_args *uap;
{
int error, s, timo;
struct osf1_timeval time;
struct timeval difftv, endtv, sleeptv, tv;
if ((error = copyin(uap->sleep, &time, sizeof time)))
return (error);
sleeptv.tv_sec = (u_long)time.tv_sec;
sleeptv.tv_usec = (u_long)time.tv_usec;
timo = tvtohz(&sleeptv);
/*
* Some callers use usleep(0) as a sort of thread-yield so make
* sure that the timeout is non-zero.
*/
if (timo == 0)
timo = 1;
s = splclock();
microtime(&tv);
splx(s);
tsleep(td, PUSER|PCATCH, "OSF/1", timo);
if (uap->slept != NULL) {
s = splclock();
microtime(&endtv);
timersub(&time, &endtv, &difftv);
splx(s);
if (tv.tv_sec < 0 || tv.tv_usec < 0)
tv.tv_sec = tv.tv_usec = 0;
TV_CP(difftv, time)
error = copyout(&time, uap->slept, sizeof time);
}
return (error);
}
int osf1_gettimeofday(td, uap)
struct thread *td;
register struct osf1_gettimeofday_args *uap;
{
int error;
struct timeval atv;
struct timezone tz;
struct osf1_timeval otv;
error = 0;
if (uap->tp) {
microtime(&atv);
otv.tv_sec = atv.tv_sec;
otv.tv_usec = atv.tv_usec;
if ((error = copyout((caddr_t)&otv, (caddr_t)uap->tp,
sizeof (otv))))
return (error);
}
if (uap->tzp) {
tz.tz_minuteswest = tz_minuteswest;
tz.tz_dsttime = tz_dsttime;
error = copyout((caddr_t)&tz, (caddr_t)uap->tzp, sizeof (tz));
}
return (error);
}
int osf1_select(td, uap)
struct thread *td;
register struct osf1_select_args *uap;
{
if (uap->tv) {
int error;
caddr_t sg;
struct osf1_timeval otv;
struct timeval tv;
sg = stackgap_init();
if ((error=copyin((caddr_t)uap->tv,(caddr_t)&otv,sizeof(otv))))
return(error);
TV_CP(otv,tv);
uap->tv = stackgap_alloc(&sg, sizeof(struct timeval));
if ((error=copyout((caddr_t)&tv, (caddr_t)uap->tv,sizeof(tv))))
return(error);
}
return(select(td, (struct select_args *)uap));
}
int
osf1_setitimer(td, uap)
struct thread *td;
struct osf1_setitimer_args *uap;
{
int error;
caddr_t old_oitv, sg;
struct itimerval itv;
struct osf1_itimerval otv;
error = 0;
old_oitv = (caddr_t)uap->oitv;
sg = stackgap_init();
if ((error = copyin((caddr_t)uap->itv,(caddr_t)&otv,sizeof(otv)))) {
printf("%s(%d): error = %d\n", __FILE__, __LINE__, error);
return error;
}
TV_CP(otv.it_interval,itv.it_interval);
TV_CP(otv.it_value,itv.it_value);
uap->itv = stackgap_alloc(&sg, sizeof(struct itimerval));
if ((error = copyout((caddr_t)&itv,(caddr_t)uap->itv,sizeof(itv)))) {
printf("%s(%d): error = %d\n", __FILE__, __LINE__, error);
return error;
}
uap->oitv = stackgap_alloc(&sg, sizeof(struct itimerval));
if ((error = setitimer(td, (struct setitimer_args *)uap))) {
printf("%s(%d): error = %d\n", __FILE__, __LINE__, error);
return error;
}
if ((error = copyin((caddr_t)uap->oitv,(caddr_t)&itv,sizeof(itv)))) {
printf("%s(%d): error = %d\n", __FILE__, __LINE__, error);
return error;
}
TV_CP(itv.it_interval,otv.it_interval);
TV_CP(itv.it_value,otv.it_value);
if (old_oitv
&& (error = copyout((caddr_t)&otv, old_oitv, sizeof(otv)))) {
printf("%s(%d): error = %d\n", __FILE__, __LINE__, error);
}
return error;
}
int
osf1_getitimer(td, uap)
struct thread *td;
struct osf1_getitimer_args *uap;
{
int error;
caddr_t old_itv, sg;
struct itimerval itv;
struct osf1_itimerval otv;
error = 0;
old_itv = (caddr_t)uap->itv;
sg = stackgap_init();
uap->itv = stackgap_alloc(&sg, sizeof(struct itimerval));
if ((error = getitimer(td, (struct getitimer_args *)uap))) {
printf("%s(%d): error = %d\n", __FILE__, __LINE__, error);
return error;
}
if ((error = copyin((caddr_t)uap->itv,(caddr_t)&itv,sizeof(itv)))) {
printf("%s(%d): error = %d\n", __FILE__, __LINE__, error);
return error;
}
TV_CP(itv.it_interval,otv.it_interval);
TV_CP(itv.it_value,otv.it_value);
if ((error = copyout((caddr_t)&otv, old_itv, sizeof(otv)))) {
printf("%s(%d): error = %d\n", __FILE__, __LINE__, error);
}
return error;
}
int
osf1_proplist_syscall(td, uap)
struct thread *td;
struct osf1_proplist_syscall_args *uap;
{
return(EOPNOTSUPP);
}
int
osf1_ntpgettime(td, uap)
struct thread *td;
struct osf1_ntpgettime_args *uap;
{
return(ENOSYS);
}
int
osf1_ntpadjtime(td, uap)
struct thread *td;
struct osf1_ntpadjtime_args *uap;
{
return(ENOSYS);
}
int
osf1_setpgrp(td, uap)
struct thread *td;
struct osf1_setpgrp_args *uap;
{
return(setpgid(td, (struct setpgid_args *)uap));
}
int
osf1_uswitch(td, uap)
struct thread *td;
struct osf1_uswitch_args *uap;
{
struct proc *p;
int rv;
vm_map_entry_t entry;
vm_offset_t zero;
GIANT_REQUIRED;
p = td->td_proc;
zero = 0;
if (uap->cmd == OSF1_USC_GET) {
if (vm_map_lookup_entry(&(p->p_vmspace->vm_map), 0, &entry))
td->td_retval[0] = OSF1_USW_NULLP;
else
td->td_retval[0] = 0;
return(KERN_SUCCESS);
} else if (uap->cmd == OSF1_USC_SET)
if (uap->mask & OSF1_USW_NULLP) {
rv = vm_mmap(&(p->p_vmspace->vm_map), &zero, PAGE_SIZE,
VM_PROT_READ, VM_PROT_ALL,
MAP_PRIVATE | MAP_FIXED | MAP_ANON, NULL, 0);
if (!rv)
return(KERN_SUCCESS);
else {
printf(
"osf1_uswitch:vm_mmap of zero page failed with status %d\n",
rv);
return(rv);
}
}
return(EINVAL);
}
int
osf1_classcntl(td, uap)
struct thread *td;
struct osf1_classcntl_args *uap;
{
return(EACCES); /* class scheduling not enabled */
}
struct osf1_tbl_loadavg
{
union {
long l[3];
double d[3];
} tl_avenrun;
int tl_lscale;
long tl_mach_factor[3]; /* ???? */
};
struct osf1_tbl_sysinfo {
long si_user;
long si_nice;
long si_sys;
long si_idle;
long si_hz;
long si_phz;
long si_boottime;
long wait;
};
#define TBL_LOADAVG 3
#define TBL_SYSINFO 12
int
osf1_table(td, uap)
struct thread *td;
struct osf1_table_args /*{
long id;
long index;
void *addr;
long nel;
u_long lel;
}*/ *uap;
{
int retval;
struct osf1_tbl_loadavg ld;
struct osf1_tbl_sysinfo si;
retval = 0;
switch(uap->id) {
case TBL_LOADAVG: /* xemacs wants this */
if ((uap->index != 0) || (uap->nel != 1))
retval = EINVAL;
bcopy(&averunnable, &ld, sizeof(averunnable));
ld.tl_lscale = (u_int)averunnable.fscale;
retval = copyout(&ld, uap->addr, sizeof(ld));
break;
case TBL_SYSINFO:
if ((uap->index != 0) || (uap->nel != 1))
retval = EINVAL;
bzero(&si, sizeof(si));
#if 0
si.si_user = cp_time[CP_USER];
si.si_nice = cp_time[CP_NICE];
si.si_sys = cp_time[CP_SYS];
si.si_idle = cp_time[CP_IDLE];
si.wait = cp_time[CP_INTR];
#endif
si.si_hz = hz;
si.si_phz = profhz;
si.si_boottime = boottime.tv_sec;
retval = copyout(&si, uap->addr, sizeof(si));
break;
default:
printf("osf1_table: %ld, %ld, %p, %ld %ld\n",
uap->id, uap->index, uap->addr, uap->nel, uap->lel);
retval = EINVAL;
}
return retval;
}
/*
* MPSAFE
*/
int
osf1_sysinfo(td, uap)
struct thread *td;
struct osf1_sysinfo_args /*{
int cmd;
char *buf;
long count;
}*/ *uap;
{
int name[2], retval;
size_t bytes, len;
char *string;
string = NULL;
switch(uap->cmd) {
case 1: /* OS */
string = "OSF1";
break;
case 2: /* hostname, from ogethostname */
len = uap->count;
name[0] = CTL_KERN;
name[1] = KERN_HOSTNAME;
mtx_lock(&Giant);
retval = userland_sysctl(td, name, 2, uap->buf, &len,
1, 0, 0, &bytes);
mtx_unlock(&Giant);
td->td_retval[0] = bytes;
return(retval);
break;
case 3: /* release of osf1 */
string = "V4.0";
break;
case 4: /* minor version of osf1 */
string = "878";
break;
case 5: /* machine or arch */
case 6:
string = "alpha";
break;
case 7: /* serial number, real osf1 returns 0! */
string = "0";
break;
case 8: /* HW vendor */
string = "Digital";
break;
case 9: /* dunno, this is what du does.. */
return(ENOSYS);
break;
default:
return(EINVAL);
}
bytes = min(uap->count, strlen(string)+1);
copyout(string, uap->buf, bytes);
td->td_retval[0] = bytes;
return(0);
}
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