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freebsd-nq/sys/alpha/osf1/osf1_misc.c
Robert Watson 5f419982c2 Back out alpha/alpha/trap.c:1.124, osf1_ioctl.c:1.14, osf1_misc.c:1.57, 
osf1_signal.c:1.41, amd64/amd64/trap.c:1.291, linux_socket.c:1.60,
svr4_fcntl.c:1.36, svr4_ioctl.c:1.23, svr4_ipc.c:1.18, svr4_misc.c:1.81,
svr4_signal.c:1.34, svr4_stat.c:1.21, svr4_stream.c:1.55,
svr4_termios.c:1.13, svr4_ttold.c:1.15, svr4_util.h:1.10,
ext2_alloc.c:1.43, i386/i386/trap.c:1.279, vm86.c:1.58,
unaligned.c:1.12, imgact_elf.c:1.164, ffs_alloc.c:1.133:

Now that Giant is acquired in uprintf() and tprintf(), the caller no
longer leads to acquire Giant unless it also holds another mutex that
would generate a lock order reversal when calling into these functions.
Specifically not backed out is the acquisition of Giant in nfs_socket.c
and rpcclnt.c, where local mutexes are held and would otherwise violate
the lock order with Giant.

This aligns this code more with the eventual locking of ttys.

Suggested by:	bde
2005-09-28 07:03:03 +00:00

1616 lines
32 KiB
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Raw Blame History

/* $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/syscallsubr.h>
#include <sys/sysctl.h>
#include <sys/sysent.h>
#include <sys/sysproto.h>
#include <sys/systm.h>
#include <sys/unistd.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/pcb.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(struct thread *td, char *path, enum uio_seg pathseg,
char **pbuf, int create)
{
return (kern_alternate_path(td, osf1_emul_path, path, pathseg, pbuf,
create));
}
int
osf1_open(td, uap)
struct thread *td;
struct osf1_open_args *uap;
{
char *path;
int error;
CHECKALTEXIST(td, uap->path, &path);
/* XXX: translate flags */
error = kern_open(td, path, UIO_SYSSPACE, uap->flags, uap->mode);
free(path, M_TEMP);
return (error);
}
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;
{
struct stat sb;
struct osf1_stat osb;
char *path;
int error;
CHECKALTEXIST(td, uap->path, &path);
error = kern_stat(td, path, UIO_SYSSPACE, &sb);
free(path, M_TEMP);
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;
char *path;
int error;
CHECKALTEXIST(td, uap->path, &path);
error = kern_lstat(td, path, UIO_SYSSPACE, &sb);
free(path, M_TEMP);
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 osf1_stat oub;
struct stat ub;
int error;
error = kern_fstat(td, uap->fd, &ub);
if (error)
return (error);
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;
{
char *path;
int error;
CHECKALTEXIST(td, uap->path, &path);
error = kern_access(td, path, UIO_SYSSPACE, uap->flags);
free(path, M_TEMP);
return (error);
}
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;
struct osf1_flock osf_flock;
struct flock bsd_flock;
error = 0;
switch (uap->cmd) {
case 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;
error = kern_fcntl(td, uap->fd, F_SETFL, tmp);
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.
*/
error = copyin(uap->arg, &osf_flock, sizeof(osf_flock));
if (error)
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;
error = kern_fcntl(td, uap->fd, uap->cmd, (intptr_t)&bsd_flock);
/* 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) {
/*
* XXX: Why are we hardcoding F_UNLCK here instead of
* copying the structure members from bsd_flock?
*/
osf_flock.l_type = F_UNLCK;
error = copyout(&osf_flock, uap->arg,
sizeof(osf_flock));
}
break;
default:
error = kern_fcntl(td, uap->fd, uap->cmd, (intptr_t)uap->arg);
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, SUSER_ALLOWJAIL)) != 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, SUSER_ALLOWJAIL)) != 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;
};
static int
osf1_copyinuio(struct osf1_iovec *iovp, u_int iovcnt, struct uio **uiop)
{
struct osf1_iovec oiov;
struct iovec *iov;
struct uio *uio;
u_int iovlen;
int error, i;
*uiop = NULL;
if (iovcnt > UIO_MAXIOV)
return (EINVAL);
iovlen = iovcnt * sizeof(struct iovec);
uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK);
iov = (struct iovec *)(uio + 1);
for (i = 0; i < iovcnt; i++) {
error = copyin(&iovp[i], &oiov, sizeof(struct osf1_iovec));
if (error) {
free(uio, M_IOV);
return (error);
}
iov[i].iov_base = oiov.iov_base;
iov[i].iov_len = oiov.iov_len;
}
uio->uio_iov = iov;
uio->uio_iovcnt = iovcnt;
uio->uio_segflg = UIO_USERSPACE;
uio->uio_offset = -1;
uio->uio_resid = 0;
for (i = 0; i < iovcnt; i++) {
if (iov->iov_len > INT_MAX - uio->uio_resid) {
free(uio, M_IOV);
return (EINVAL);
}
uio->uio_resid += iov->iov_len;
iov++;
}
*uiop = uio;
return (0);
}
int
osf1_readv(td, uap)
struct thread *td;
struct osf1_readv_args *uap;
{
struct uio *auio;
int error;
error = osf1_copyinuio(uap->iovp, uap->iovcnt, &auio);
if (error)
return (error);
error = kern_readv(td, uap->fd, auio);
free(auio, M_IOV);
return (error);
}
int
osf1_writev(td, uap)
struct thread *td;
struct osf1_writev_args *uap;
{
struct uio *auio;
int error;
error = osf1_copyinuio(uap->iovp, uap->iovcnt, &auio);
if (error)
return (error);
error = kern_writev(td, uap->fd, auio);
free(auio, M_IOV);
return (error);
}
/*
* More of the stupid off_t padding!
*/
int
osf1_truncate(td, uap)
struct thread *td;
struct osf1_truncate_args *uap;
{
char *path;
int error;
CHECKALTEXIST(td, uap->path, &path);
error = kern_truncate(td, path, UIO_SYSSPACE, uap->length);
free(path, M_TEMP);
return (error);
}
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;
{
char *path;
int error;
if (osf2bsd_pathconf(&uap->name))
return (EINVAL);
CHECKALTEXIST(td, uap->path, &path);
error = kern_pathconf(td, path, UIO_SYSSPACE, uap->name);
free(path, M_TEMP);
return (error);
}
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 osf1_rusage oru;
struct rusage ru;
int error;
error = kern_getrusage(td, uap->who, &ru);
if (error)
return (error);
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)));
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, *rup;
if (uap->rusage != NULL)
rup = &ru;
else
rup = NULL;
error = kern_wait(td, uap->pid, &status, uap->options, rup);
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;
{
struct image_args eargs;
char *path;
int error;
CHECKALTEXIST(td, uap->path, &path);
error = exec_copyin_args(&eargs, path, UIO_SYSSPACE, uap->argp,
uap->envp);
free(path, M_TEMP);
if (error == 0)
error = kern_execve(td, &eargs, NULL);
exec_free_args(&eargs);
return (error);
}
int
osf1_usleep_thread(td, uap)
struct thread *td;
struct osf1_usleep_thread_args *uap;
{
int error, 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;
microtime(&tv);
tsleep(td, PUSER|PCATCH, "OSF/1", timo);
if (uap->slept != NULL) {
microtime(&endtv);
timersub(&endtv, &tv, &difftv);
if (difftv.tv_sec < 0 || difftv.tv_usec < 0)
difftv.tv_sec = difftv.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;
{
struct osf1_timeval otv;
struct timeval tv, *tvp;
int error;
if (uap->tv != NULL) {
error = copyin(uap->tv, &otv, sizeof(otv));
if (error)
return (error);
TV_CP(otv, tv);
tvp = &tv;
} else
tvp = NULL;
return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp));
}
int
osf1_setitimer(td, uap)
struct thread *td;
struct osf1_setitimer_args *uap;
{
struct itimerval itv, oitv;
struct osf1_itimerval otv;
int error;
error = copyin(uap->itv, &otv, sizeof(otv));
if (error) {
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);
error = kern_setitimer(td, uap->which, &itv, &oitv);
if (error || uap->oitv == NULL)
return (error);
TV_CP(oitv.it_interval, otv.it_interval);
TV_CP(oitv.it_value, otv.it_value);
error = copyout(&otv, uap->oitv, sizeof(otv));
if (error)
printf("%s(%d): error = %d\n", __FILE__, __LINE__, error);
return (error);
}
int
osf1_getitimer(td, uap)
struct thread *td;
struct osf1_getitimer_args *uap;
{
struct itimerval itv;
struct osf1_itimerval otv;
int error;
error = kern_getitimer(td, uap->which, &itv);
if (error)
return (error);
TV_CP(itv.it_interval, otv.it_interval);
TV_CP(itv.it_value, otv.it_value);
error = copyout(&otv, uap->itv, sizeof(otv));
if (error)
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, OBJT_DEFAULT,
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, 0);
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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