1404 lines
32 KiB
C
1404 lines
32 KiB
C
/*-
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* Copyright (c) 2002 Doug Rabson
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* Copyright (c) 1994-1995 Søren Schmidt
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_mac.h"
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#include <sys/param.h>
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#include <sys/blist.h>
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#include <sys/fcntl.h>
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#if defined(__i386__) || defined(__alpha__)
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#include <sys/imgact_aout.h>
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#endif
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#include <sys/jail.h>
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#include <sys/kernel.h>
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#include <sys/limits.h>
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#include <sys/lock.h>
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#include <sys/mac.h>
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#include <sys/malloc.h>
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#include <sys/mman.h>
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#include <sys/mount.h>
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#include <sys/mutex.h>
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#include <sys/namei.h>
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#include <sys/proc.h>
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#include <sys/reboot.h>
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#include <sys/resourcevar.h>
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#include <sys/signalvar.h>
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#include <sys/stat.h>
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#include <sys/syscallsubr.h>
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#include <sys/sysctl.h>
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#include <sys/sysproto.h>
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#include <sys/systm.h>
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#include <sys/time.h>
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#include <sys/vmmeter.h>
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#include <sys/vnode.h>
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#include <sys/wait.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <vm/vm_kern.h>
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#include <vm/vm_map.h>
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#include <vm/vm_extern.h>
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#include <vm/vm_object.h>
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#include <vm/swap_pager.h>
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#include <posix4/sched.h>
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#include "opt_compat.h"
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#include <compat/linux/linux_sysproto.h>
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#ifdef COMPAT_LINUX32
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#include <machine/../linux32/linux.h>
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#include <machine/../linux32/linux32_proto.h>
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#else
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#include <machine/../linux/linux.h>
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#include <machine/../linux/linux_proto.h>
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#endif
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#include <compat/linux/linux_mib.h>
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#include <compat/linux/linux_util.h>
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#ifdef __i386__
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#include <machine/cputypes.h>
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#endif
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#ifdef __alpha__
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#define BSD_TO_LINUX_SIGNAL(sig) (sig)
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#else
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#define BSD_TO_LINUX_SIGNAL(sig) \
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(((sig) <= LINUX_SIGTBLSZ) ? bsd_to_linux_signal[_SIG_IDX(sig)] : sig)
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#endif
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#ifndef __alpha__
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static unsigned int linux_to_bsd_resource[LINUX_RLIM_NLIMITS] = {
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RLIMIT_CPU, RLIMIT_FSIZE, RLIMIT_DATA, RLIMIT_STACK,
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RLIMIT_CORE, RLIMIT_RSS, RLIMIT_NPROC, RLIMIT_NOFILE,
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RLIMIT_MEMLOCK, -1
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};
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#endif /*!__alpha__*/
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struct l_sysinfo {
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l_long uptime; /* Seconds since boot */
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l_ulong loads[3]; /* 1, 5, and 15 minute load averages */
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#define LINUX_SYSINFO_LOADS_SCALE 65536
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l_ulong totalram; /* Total usable main memory size */
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l_ulong freeram; /* Available memory size */
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l_ulong sharedram; /* Amount of shared memory */
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l_ulong bufferram; /* Memory used by buffers */
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l_ulong totalswap; /* Total swap space size */
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l_ulong freeswap; /* swap space still available */
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l_ushort procs; /* Number of current processes */
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l_ulong totalbig;
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l_ulong freebig;
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l_uint mem_unit;
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char _f[6]; /* Pads structure to 64 bytes */
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};
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#ifndef __alpha__
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int
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linux_sysinfo(struct thread *td, struct linux_sysinfo_args *args)
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{
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struct l_sysinfo sysinfo;
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vm_object_t object;
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int i, j;
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struct timespec ts;
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/* Uptime is copied out of print_uptime() in kern_shutdown.c */
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getnanouptime(&ts);
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i = 0;
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if (ts.tv_sec >= 86400) {
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ts.tv_sec %= 86400;
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i = 1;
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}
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if (i || ts.tv_sec >= 3600) {
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ts.tv_sec %= 3600;
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i = 1;
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}
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if (i || ts.tv_sec >= 60) {
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ts.tv_sec %= 60;
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i = 1;
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}
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sysinfo.uptime=ts.tv_sec;
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/* Use the information from the mib to get our load averages */
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for (i = 0; i < 3; i++)
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sysinfo.loads[i] = averunnable.ldavg[i] *
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LINUX_SYSINFO_LOADS_SCALE / averunnable.fscale;
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sysinfo.totalram = physmem * PAGE_SIZE;
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sysinfo.freeram = sysinfo.totalram - cnt.v_wire_count * PAGE_SIZE;
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sysinfo.sharedram = 0;
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mtx_lock(&vm_object_list_mtx);
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TAILQ_FOREACH(object, &vm_object_list, object_list)
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if (object->shadow_count > 1)
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sysinfo.sharedram += object->resident_page_count;
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mtx_unlock(&vm_object_list_mtx);
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sysinfo.sharedram *= PAGE_SIZE;
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sysinfo.bufferram = 0;
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swap_pager_status(&i, &j);
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sysinfo.totalswap= i * PAGE_SIZE;
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sysinfo.freeswap = (i - j) * PAGE_SIZE;
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sysinfo.procs = nprocs;
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/* The following are only present in newer Linux kernels. */
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sysinfo.totalbig = 0;
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sysinfo.freebig = 0;
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sysinfo.mem_unit = 1;
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return copyout(&sysinfo, args->info, sizeof(sysinfo));
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}
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#endif /*!__alpha__*/
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#ifndef __alpha__
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int
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linux_alarm(struct thread *td, struct linux_alarm_args *args)
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{
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struct itimerval it, old_it;
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int error;
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#ifdef DEBUG
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if (ldebug(alarm))
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printf(ARGS(alarm, "%u"), args->secs);
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#endif
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if (args->secs > 100000000)
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return (EINVAL);
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it.it_value.tv_sec = (long)args->secs;
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it.it_value.tv_usec = 0;
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it.it_interval.tv_sec = 0;
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it.it_interval.tv_usec = 0;
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error = kern_setitimer(td, ITIMER_REAL, &it, &old_it);
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if (error)
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return (error);
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if (timevalisset(&old_it.it_value)) {
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if (old_it.it_value.tv_usec != 0)
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old_it.it_value.tv_sec++;
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td->td_retval[0] = old_it.it_value.tv_sec;
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}
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return (0);
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}
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#endif /*!__alpha__*/
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int
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linux_brk(struct thread *td, struct linux_brk_args *args)
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{
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struct vmspace *vm = td->td_proc->p_vmspace;
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vm_offset_t new, old;
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struct obreak_args /* {
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char * nsize;
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} */ tmp;
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#ifdef DEBUG
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if (ldebug(brk))
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printf(ARGS(brk, "%p"), (void *)(uintptr_t)args->dsend);
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#endif
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old = (vm_offset_t)vm->vm_daddr + ctob(vm->vm_dsize);
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new = (vm_offset_t)args->dsend;
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tmp.nsize = (char *) new;
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if (((caddr_t)new > vm->vm_daddr) && !obreak(td, &tmp))
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td->td_retval[0] = (long)new;
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else
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td->td_retval[0] = (long)old;
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return 0;
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}
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#if defined(__i386__) || defined(__alpha__)
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int
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linux_uselib(struct thread *td, struct linux_uselib_args *args)
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{
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struct nameidata ni;
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struct vnode *vp;
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struct exec *a_out;
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struct vattr attr;
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vm_offset_t vmaddr;
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unsigned long file_offset;
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vm_offset_t buffer;
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unsigned long bss_size;
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char *library;
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int error;
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int locked;
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LCONVPATHEXIST(td, args->library, &library);
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#ifdef DEBUG
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if (ldebug(uselib))
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printf(ARGS(uselib, "%s"), library);
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#endif
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a_out = NULL;
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locked = 0;
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vp = NULL;
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/*
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* XXX: This code should make use of vn_open(), rather than doing
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* all this stuff itself.
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*/
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NDINIT(&ni, LOOKUP, ISOPEN|FOLLOW|LOCKLEAF, UIO_SYSSPACE, library, td);
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error = namei(&ni);
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LFREEPATH(library);
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if (error)
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goto cleanup;
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vp = ni.ni_vp;
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/*
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* XXX - This looks like a bogus check. A LOCKLEAF namei should not
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* succeed without returning a vnode.
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*/
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if (vp == NULL) {
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error = ENOEXEC; /* ?? */
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goto cleanup;
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}
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NDFREE(&ni, NDF_ONLY_PNBUF);
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/*
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* From here on down, we have a locked vnode that must be unlocked.
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*/
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locked++;
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/* Writable? */
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if (vp->v_writecount) {
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error = ETXTBSY;
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goto cleanup;
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}
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/* Executable? */
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error = VOP_GETATTR(vp, &attr, td->td_ucred, td);
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if (error)
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goto cleanup;
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if ((vp->v_mount->mnt_flag & MNT_NOEXEC) ||
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((attr.va_mode & 0111) == 0) || (attr.va_type != VREG)) {
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error = ENOEXEC;
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goto cleanup;
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}
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/* Sensible size? */
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if (attr.va_size == 0) {
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error = ENOEXEC;
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goto cleanup;
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}
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/* Can we access it? */
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error = VOP_ACCESS(vp, VEXEC, td->td_ucred, td);
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if (error)
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goto cleanup;
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/*
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* XXX: This should use vn_open() so that it is properly authorized,
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* and to reduce code redundancy all over the place here.
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*/
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#ifdef MAC
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error = mac_check_vnode_open(td->td_ucred, vp, FREAD);
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if (error)
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goto cleanup;
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#endif
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error = VOP_OPEN(vp, FREAD, td->td_ucred, td, -1);
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if (error)
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goto cleanup;
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|
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/* Pull in executable header into kernel_map */
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error = vm_mmap(kernel_map, (vm_offset_t *)&a_out, PAGE_SIZE,
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VM_PROT_READ, VM_PROT_READ, 0, OBJT_VNODE, vp, 0);
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/*
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* Lock no longer needed
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*/
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locked = 0;
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VOP_UNLOCK(vp, 0, td);
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if (error)
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goto cleanup;
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|
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/* Is it a Linux binary ? */
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if (((a_out->a_magic >> 16) & 0xff) != 0x64) {
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error = ENOEXEC;
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goto cleanup;
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}
|
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/*
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* While we are here, we should REALLY do some more checks
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*/
|
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|
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/* Set file/virtual offset based on a.out variant. */
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switch ((int)(a_out->a_magic & 0xffff)) {
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case 0413: /* ZMAGIC */
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file_offset = 1024;
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break;
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case 0314: /* QMAGIC */
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file_offset = 0;
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break;
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default:
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error = ENOEXEC;
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goto cleanup;
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}
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bss_size = round_page(a_out->a_bss);
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|
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/* Check various fields in header for validity/bounds. */
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if (a_out->a_text & PAGE_MASK || a_out->a_data & PAGE_MASK) {
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error = ENOEXEC;
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goto cleanup;
|
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}
|
|
|
|
/* text + data can't exceed file size */
|
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if (a_out->a_data + a_out->a_text > attr.va_size) {
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error = EFAULT;
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goto cleanup;
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}
|
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|
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/*
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* text/data/bss must not exceed limits
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* XXX - this is not complete. it should check current usage PLUS
|
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* the resources needed by this library.
|
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*/
|
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PROC_LOCK(td->td_proc);
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if (a_out->a_text > maxtsiz ||
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a_out->a_data + bss_size > lim_cur(td->td_proc, RLIMIT_DATA)) {
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PROC_UNLOCK(td->td_proc);
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error = ENOMEM;
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goto cleanup;
|
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}
|
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PROC_UNLOCK(td->td_proc);
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|
|
|
mp_fixme("Unlocked vflags access.");
|
|
/* prevent more writers */
|
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vp->v_vflag |= VV_TEXT;
|
|
|
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/*
|
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* Check if file_offset page aligned. Currently we cannot handle
|
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* misalinged file offsets, and so we read in the entire image
|
|
* (what a waste).
|
|
*/
|
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if (file_offset & PAGE_MASK) {
|
|
#ifdef DEBUG
|
|
printf("uselib: Non page aligned binary %lu\n", file_offset);
|
|
#endif
|
|
/* Map text+data read/write/execute */
|
|
|
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/* a_entry is the load address and is page aligned */
|
|
vmaddr = trunc_page(a_out->a_entry);
|
|
|
|
/* get anon user mapping, read+write+execute */
|
|
error = vm_map_find(&td->td_proc->p_vmspace->vm_map, NULL, 0,
|
|
&vmaddr, a_out->a_text + a_out->a_data, FALSE, VM_PROT_ALL,
|
|
VM_PROT_ALL, 0);
|
|
if (error)
|
|
goto cleanup;
|
|
|
|
/* map file into kernel_map */
|
|
error = vm_mmap(kernel_map, &buffer,
|
|
round_page(a_out->a_text + a_out->a_data + file_offset),
|
|
VM_PROT_READ, VM_PROT_READ, 0, OBJT_VNODE, vp,
|
|
trunc_page(file_offset));
|
|
if (error)
|
|
goto cleanup;
|
|
|
|
/* copy from kernel VM space to user space */
|
|
error = copyout(PTRIN(buffer + file_offset),
|
|
(void *)vmaddr, a_out->a_text + a_out->a_data);
|
|
|
|
/* release temporary kernel space */
|
|
vm_map_remove(kernel_map, buffer, buffer +
|
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round_page(a_out->a_text + a_out->a_data + file_offset));
|
|
|
|
if (error)
|
|
goto cleanup;
|
|
} else {
|
|
#ifdef DEBUG
|
|
printf("uselib: Page aligned binary %lu\n", file_offset);
|
|
#endif
|
|
/*
|
|
* for QMAGIC, a_entry is 20 bytes beyond the load address
|
|
* to skip the executable header
|
|
*/
|
|
vmaddr = trunc_page(a_out->a_entry);
|
|
|
|
/*
|
|
* Map it all into the process's space as a single
|
|
* copy-on-write "data" segment.
|
|
*/
|
|
error = vm_mmap(&td->td_proc->p_vmspace->vm_map, &vmaddr,
|
|
a_out->a_text + a_out->a_data, VM_PROT_ALL, VM_PROT_ALL,
|
|
MAP_PRIVATE | MAP_FIXED, OBJT_VNODE, vp, file_offset);
|
|
if (error)
|
|
goto cleanup;
|
|
}
|
|
#ifdef DEBUG
|
|
printf("mem=%08lx = %08lx %08lx\n", (long)vmaddr, ((long*)vmaddr)[0],
|
|
((long*)vmaddr)[1]);
|
|
#endif
|
|
if (bss_size != 0) {
|
|
/* Calculate BSS start address */
|
|
vmaddr = trunc_page(a_out->a_entry) + a_out->a_text +
|
|
a_out->a_data;
|
|
|
|
/* allocate some 'anon' space */
|
|
error = vm_map_find(&td->td_proc->p_vmspace->vm_map, NULL, 0,
|
|
&vmaddr, bss_size, FALSE, VM_PROT_ALL, VM_PROT_ALL, 0);
|
|
if (error)
|
|
goto cleanup;
|
|
}
|
|
|
|
cleanup:
|
|
/* Unlock vnode if needed */
|
|
if (locked)
|
|
VOP_UNLOCK(vp, 0, td);
|
|
|
|
/* Release the kernel mapping. */
|
|
if (a_out)
|
|
vm_map_remove(kernel_map, (vm_offset_t)a_out,
|
|
(vm_offset_t)a_out + PAGE_SIZE);
|
|
|
|
return error;
|
|
}
|
|
|
|
#endif /* __i386__ || __alpha__ */
|
|
|
|
int
|
|
linux_select(struct thread *td, struct linux_select_args *args)
|
|
{
|
|
l_timeval ltv;
|
|
struct timeval tv0, tv1, utv, *tvp;
|
|
int error;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(select))
|
|
printf(ARGS(select, "%d, %p, %p, %p, %p"), args->nfds,
|
|
(void *)args->readfds, (void *)args->writefds,
|
|
(void *)args->exceptfds, (void *)args->timeout);
|
|
#endif
|
|
|
|
/*
|
|
* Store current time for computation of the amount of
|
|
* time left.
|
|
*/
|
|
if (args->timeout) {
|
|
if ((error = copyin(args->timeout, <v, sizeof(ltv))))
|
|
goto select_out;
|
|
utv.tv_sec = ltv.tv_sec;
|
|
utv.tv_usec = ltv.tv_usec;
|
|
#ifdef DEBUG
|
|
if (ldebug(select))
|
|
printf(LMSG("incoming timeout (%ld/%ld)"),
|
|
utv.tv_sec, utv.tv_usec);
|
|
#endif
|
|
|
|
if (itimerfix(&utv)) {
|
|
/*
|
|
* The timeval was invalid. Convert it to something
|
|
* valid that will act as it does under Linux.
|
|
*/
|
|
utv.tv_sec += utv.tv_usec / 1000000;
|
|
utv.tv_usec %= 1000000;
|
|
if (utv.tv_usec < 0) {
|
|
utv.tv_sec -= 1;
|
|
utv.tv_usec += 1000000;
|
|
}
|
|
if (utv.tv_sec < 0)
|
|
timevalclear(&utv);
|
|
}
|
|
microtime(&tv0);
|
|
tvp = &utv;
|
|
} else
|
|
tvp = NULL;
|
|
|
|
error = kern_select(td, args->nfds, args->readfds, args->writefds,
|
|
args->exceptfds, tvp);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(select))
|
|
printf(LMSG("real select returns %d"), error);
|
|
#endif
|
|
if (error) {
|
|
/*
|
|
* See fs/select.c in the Linux kernel. Without this,
|
|
* Maelstrom doesn't work.
|
|
*/
|
|
if (error == ERESTART)
|
|
error = EINTR;
|
|
goto select_out;
|
|
}
|
|
|
|
if (args->timeout) {
|
|
if (td->td_retval[0]) {
|
|
/*
|
|
* Compute how much time was left of the timeout,
|
|
* by subtracting the current time and the time
|
|
* before we started the call, and subtracting
|
|
* that result from the user-supplied value.
|
|
*/
|
|
microtime(&tv1);
|
|
timevalsub(&tv1, &tv0);
|
|
timevalsub(&utv, &tv1);
|
|
if (utv.tv_sec < 0)
|
|
timevalclear(&utv);
|
|
} else
|
|
timevalclear(&utv);
|
|
#ifdef DEBUG
|
|
if (ldebug(select))
|
|
printf(LMSG("outgoing timeout (%ld/%ld)"),
|
|
utv.tv_sec, utv.tv_usec);
|
|
#endif
|
|
ltv.tv_sec = utv.tv_sec;
|
|
ltv.tv_usec = utv.tv_usec;
|
|
if ((error = copyout(<v, args->timeout, sizeof(ltv))))
|
|
goto select_out;
|
|
}
|
|
|
|
select_out:
|
|
#ifdef DEBUG
|
|
if (ldebug(select))
|
|
printf(LMSG("select_out -> %d"), error);
|
|
#endif
|
|
return error;
|
|
}
|
|
|
|
int
|
|
linux_mremap(struct thread *td, struct linux_mremap_args *args)
|
|
{
|
|
struct munmap_args /* {
|
|
void *addr;
|
|
size_t len;
|
|
} */ bsd_args;
|
|
int error = 0;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(mremap))
|
|
printf(ARGS(mremap, "%p, %08lx, %08lx, %08lx"),
|
|
(void *)(uintptr_t)args->addr,
|
|
(unsigned long)args->old_len,
|
|
(unsigned long)args->new_len,
|
|
(unsigned long)args->flags);
|
|
#endif
|
|
args->new_len = round_page(args->new_len);
|
|
args->old_len = round_page(args->old_len);
|
|
|
|
if (args->new_len > args->old_len) {
|
|
td->td_retval[0] = 0;
|
|
return ENOMEM;
|
|
}
|
|
|
|
if (args->new_len < args->old_len) {
|
|
bsd_args.addr =
|
|
(caddr_t)((uintptr_t)args->addr + args->new_len);
|
|
bsd_args.len = args->old_len - args->new_len;
|
|
error = munmap(td, &bsd_args);
|
|
}
|
|
|
|
td->td_retval[0] = error ? 0 : (uintptr_t)args->addr;
|
|
return error;
|
|
}
|
|
|
|
#define LINUX_MS_ASYNC 0x0001
|
|
#define LINUX_MS_INVALIDATE 0x0002
|
|
#define LINUX_MS_SYNC 0x0004
|
|
|
|
int
|
|
linux_msync(struct thread *td, struct linux_msync_args *args)
|
|
{
|
|
struct msync_args bsd_args;
|
|
|
|
bsd_args.addr = (caddr_t)(uintptr_t)args->addr;
|
|
bsd_args.len = (uintptr_t)args->len;
|
|
bsd_args.flags = args->fl & ~LINUX_MS_SYNC;
|
|
|
|
return msync(td, &bsd_args);
|
|
}
|
|
|
|
#ifndef __alpha__
|
|
int
|
|
linux_time(struct thread *td, struct linux_time_args *args)
|
|
{
|
|
struct timeval tv;
|
|
l_time_t tm;
|
|
int error;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(time))
|
|
printf(ARGS(time, "*"));
|
|
#endif
|
|
|
|
microtime(&tv);
|
|
tm = tv.tv_sec;
|
|
if (args->tm && (error = copyout(&tm, args->tm, sizeof(tm))))
|
|
return error;
|
|
td->td_retval[0] = tm;
|
|
return 0;
|
|
}
|
|
#endif /*!__alpha__*/
|
|
|
|
struct l_times_argv {
|
|
l_long tms_utime;
|
|
l_long tms_stime;
|
|
l_long tms_cutime;
|
|
l_long tms_cstime;
|
|
};
|
|
|
|
#ifdef __alpha__
|
|
#define CLK_TCK 1024 /* Linux uses 1024 on alpha */
|
|
#else
|
|
#define CLK_TCK 100 /* Linux uses 100 */
|
|
#endif
|
|
|
|
#define CONVTCK(r) (r.tv_sec * CLK_TCK + r.tv_usec / (1000000 / CLK_TCK))
|
|
|
|
int
|
|
linux_times(struct thread *td, struct linux_times_args *args)
|
|
{
|
|
struct timeval tv, utime, stime, cutime, cstime;
|
|
struct l_times_argv tms;
|
|
struct proc *p;
|
|
int error;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(times))
|
|
printf(ARGS(times, "*"));
|
|
#endif
|
|
|
|
p = td->td_proc;
|
|
PROC_LOCK(p);
|
|
calcru(p, &utime, &stime);
|
|
calccru(p, &cutime, &cstime);
|
|
PROC_UNLOCK(p);
|
|
|
|
tms.tms_utime = CONVTCK(utime);
|
|
tms.tms_stime = CONVTCK(stime);
|
|
|
|
tms.tms_cutime = CONVTCK(cutime);
|
|
tms.tms_cstime = CONVTCK(cstime);
|
|
|
|
if ((error = copyout(&tms, args->buf, sizeof(tms))))
|
|
return error;
|
|
|
|
microuptime(&tv);
|
|
td->td_retval[0] = (int)CONVTCK(tv);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
linux_newuname(struct thread *td, struct linux_newuname_args *args)
|
|
{
|
|
struct l_new_utsname utsname;
|
|
char osname[LINUX_MAX_UTSNAME];
|
|
char osrelease[LINUX_MAX_UTSNAME];
|
|
char *p;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(newuname))
|
|
printf(ARGS(newuname, "*"));
|
|
#endif
|
|
|
|
linux_get_osname(td, osname);
|
|
linux_get_osrelease(td, osrelease);
|
|
|
|
bzero(&utsname, sizeof(utsname));
|
|
strlcpy(utsname.sysname, osname, LINUX_MAX_UTSNAME);
|
|
getcredhostname(td->td_ucred, utsname.nodename, LINUX_MAX_UTSNAME);
|
|
strlcpy(utsname.release, osrelease, LINUX_MAX_UTSNAME);
|
|
strlcpy(utsname.version, version, LINUX_MAX_UTSNAME);
|
|
for (p = utsname.version; *p != '\0'; ++p)
|
|
if (*p == '\n') {
|
|
*p = '\0';
|
|
break;
|
|
}
|
|
#ifdef __i386__
|
|
{
|
|
const char *class;
|
|
switch (cpu_class) {
|
|
case CPUCLASS_686:
|
|
class = "i686";
|
|
break;
|
|
case CPUCLASS_586:
|
|
class = "i586";
|
|
break;
|
|
case CPUCLASS_486:
|
|
class = "i486";
|
|
break;
|
|
default:
|
|
class = "i386";
|
|
}
|
|
strlcpy(utsname.machine, class, LINUX_MAX_UTSNAME);
|
|
}
|
|
#elif defined(__amd64__) /* XXX: Linux can change 'personality'. */
|
|
#ifdef COMPAT_LINUX32
|
|
strlcpy(utsname.machine, "i686", LINUX_MAX_UTSNAME);
|
|
#else
|
|
strlcpy(utsname.machine, "x86_64", LINUX_MAX_UTSNAME);
|
|
#endif /* COMPAT_LINUX32 */
|
|
#else /* something other than i386 or amd64 - assume we and Linux agree */
|
|
strlcpy(utsname.machine, machine, LINUX_MAX_UTSNAME);
|
|
#endif /* __i386__ */
|
|
strlcpy(utsname.domainname, domainname, LINUX_MAX_UTSNAME);
|
|
|
|
return (copyout(&utsname, args->buf, sizeof(utsname)));
|
|
}
|
|
|
|
#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
|
|
struct l_utimbuf {
|
|
l_time_t l_actime;
|
|
l_time_t l_modtime;
|
|
};
|
|
|
|
int
|
|
linux_utime(struct thread *td, struct linux_utime_args *args)
|
|
{
|
|
struct timeval tv[2], *tvp;
|
|
struct l_utimbuf lut;
|
|
char *fname;
|
|
int error;
|
|
|
|
LCONVPATHEXIST(td, args->fname, &fname);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(utime))
|
|
printf(ARGS(utime, "%s, *"), fname);
|
|
#endif
|
|
|
|
if (args->times) {
|
|
if ((error = copyin(args->times, &lut, sizeof lut))) {
|
|
LFREEPATH(fname);
|
|
return error;
|
|
}
|
|
tv[0].tv_sec = lut.l_actime;
|
|
tv[0].tv_usec = 0;
|
|
tv[1].tv_sec = lut.l_modtime;
|
|
tv[1].tv_usec = 0;
|
|
tvp = tv;
|
|
} else
|
|
tvp = NULL;
|
|
|
|
error = kern_utimes(td, fname, UIO_SYSSPACE, tvp, UIO_SYSSPACE);
|
|
LFREEPATH(fname);
|
|
return (error);
|
|
}
|
|
#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
|
|
|
|
#define __WCLONE 0x80000000
|
|
|
|
#ifndef __alpha__
|
|
int
|
|
linux_waitpid(struct thread *td, struct linux_waitpid_args *args)
|
|
{
|
|
int error, options, tmpstat;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(waitpid))
|
|
printf(ARGS(waitpid, "%d, %p, %d"),
|
|
args->pid, (void *)args->status, args->options);
|
|
#endif
|
|
|
|
options = (args->options & (WNOHANG | WUNTRACED));
|
|
/* WLINUXCLONE should be equal to __WCLONE, but we make sure */
|
|
if (args->options & __WCLONE)
|
|
options |= WLINUXCLONE;
|
|
|
|
error = kern_wait(td, args->pid, &tmpstat, options, NULL);
|
|
if (error)
|
|
return error;
|
|
|
|
if (args->status) {
|
|
tmpstat &= 0xffff;
|
|
if (WIFSIGNALED(tmpstat))
|
|
tmpstat = (tmpstat & 0xffffff80) |
|
|
BSD_TO_LINUX_SIGNAL(WTERMSIG(tmpstat));
|
|
else if (WIFSTOPPED(tmpstat))
|
|
tmpstat = (tmpstat & 0xffff00ff) |
|
|
(BSD_TO_LINUX_SIGNAL(WSTOPSIG(tmpstat)) << 8);
|
|
return copyout(&tmpstat, args->status, sizeof(int));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif /*!__alpha__*/
|
|
|
|
int
|
|
linux_wait4(struct thread *td, struct linux_wait4_args *args)
|
|
{
|
|
int error, options, tmpstat;
|
|
struct rusage ru, *rup;
|
|
struct proc *p;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(wait4))
|
|
printf(ARGS(wait4, "%d, %p, %d, %p"),
|
|
args->pid, (void *)args->status, args->options,
|
|
(void *)args->rusage);
|
|
#endif
|
|
|
|
options = (args->options & (WNOHANG | WUNTRACED));
|
|
/* WLINUXCLONE should be equal to __WCLONE, but we make sure */
|
|
if (args->options & __WCLONE)
|
|
options |= WLINUXCLONE;
|
|
|
|
if (args->rusage != NULL)
|
|
rup = &ru;
|
|
else
|
|
rup = NULL;
|
|
error = kern_wait(td, args->pid, &tmpstat, options, rup);
|
|
if (error)
|
|
return error;
|
|
|
|
p = td->td_proc;
|
|
PROC_LOCK(p);
|
|
SIGDELSET(p->p_siglist, SIGCHLD);
|
|
PROC_UNLOCK(p);
|
|
|
|
if (args->status) {
|
|
tmpstat &= 0xffff;
|
|
if (WIFSIGNALED(tmpstat))
|
|
tmpstat = (tmpstat & 0xffffff80) |
|
|
BSD_TO_LINUX_SIGNAL(WTERMSIG(tmpstat));
|
|
else if (WIFSTOPPED(tmpstat))
|
|
tmpstat = (tmpstat & 0xffff00ff) |
|
|
(BSD_TO_LINUX_SIGNAL(WSTOPSIG(tmpstat)) << 8);
|
|
error = copyout(&tmpstat, args->status, sizeof(int));
|
|
}
|
|
if (args->rusage != NULL && error == 0)
|
|
error = copyout(&ru, args->rusage, sizeof(ru));
|
|
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_mknod(struct thread *td, struct linux_mknod_args *args)
|
|
{
|
|
char *path;
|
|
int error;
|
|
|
|
LCONVPATHCREAT(td, args->path, &path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(mknod))
|
|
printf(ARGS(mknod, "%s, %d, %d"), path, args->mode, args->dev);
|
|
#endif
|
|
|
|
if (args->mode & S_IFIFO)
|
|
error = kern_mkfifo(td, path, UIO_SYSSPACE, args->mode);
|
|
else
|
|
error = kern_mknod(td, path, UIO_SYSSPACE, args->mode,
|
|
args->dev);
|
|
LFREEPATH(path);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* UGH! This is just about the dumbest idea I've ever heard!!
|
|
*/
|
|
int
|
|
linux_personality(struct thread *td, struct linux_personality_args *args)
|
|
{
|
|
#ifdef DEBUG
|
|
if (ldebug(personality))
|
|
printf(ARGS(personality, "%lu"), (unsigned long)args->per);
|
|
#endif
|
|
#ifndef __alpha__
|
|
if (args->per != 0)
|
|
return EINVAL;
|
|
#endif
|
|
|
|
/* Yes Jim, it's still a Linux... */
|
|
td->td_retval[0] = 0;
|
|
return 0;
|
|
}
|
|
|
|
struct l_itimerval {
|
|
l_timeval it_interval;
|
|
l_timeval it_value;
|
|
};
|
|
|
|
#define B2L_ITIMERVAL(bip, lip) \
|
|
(bip)->it_interval.tv_sec = (lip)->it_interval.tv_sec; \
|
|
(bip)->it_interval.tv_usec = (lip)->it_interval.tv_usec; \
|
|
(bip)->it_value.tv_sec = (lip)->it_value.tv_sec; \
|
|
(bip)->it_value.tv_usec = (lip)->it_value.tv_usec;
|
|
|
|
int
|
|
linux_setitimer(struct thread *td, struct linux_setitimer_args *uap)
|
|
{
|
|
int error;
|
|
struct l_itimerval ls;
|
|
struct itimerval aitv, oitv;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(setitimer))
|
|
printf(ARGS(setitimer, "%p, %p"),
|
|
(void *)uap->itv, (void *)uap->oitv);
|
|
#endif
|
|
|
|
if (uap->itv == NULL) {
|
|
uap->itv = uap->oitv;
|
|
return (linux_getitimer(td, (struct linux_getitimer_args *)uap));
|
|
}
|
|
|
|
error = copyin(uap->itv, &ls, sizeof(ls));
|
|
if (error != 0)
|
|
return (error);
|
|
B2L_ITIMERVAL(&aitv, &ls);
|
|
#ifdef DEBUG
|
|
if (ldebug(setitimer)) {
|
|
printf("setitimer: value: sec: %ld, usec: %ld\n",
|
|
aitv.it_value.tv_sec, aitv.it_value.tv_usec);
|
|
printf("setitimer: interval: sec: %ld, usec: %ld\n",
|
|
aitv.it_interval.tv_sec, aitv.it_interval.tv_usec);
|
|
}
|
|
#endif
|
|
error = kern_setitimer(td, uap->which, &aitv, &oitv);
|
|
if (error != 0 || uap->oitv == NULL)
|
|
return (error);
|
|
B2L_ITIMERVAL(&ls, &oitv);
|
|
|
|
return (copyout(&ls, uap->oitv, sizeof(ls)));
|
|
}
|
|
|
|
int
|
|
linux_getitimer(struct thread *td, struct linux_getitimer_args *uap)
|
|
{
|
|
int error;
|
|
struct l_itimerval ls;
|
|
struct itimerval aitv;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(getitimer))
|
|
printf(ARGS(getitimer, "%p"), (void *)uap->itv);
|
|
#endif
|
|
error = kern_getitimer(td, uap->which, &aitv);
|
|
if (error != 0)
|
|
return (error);
|
|
B2L_ITIMERVAL(&ls, &aitv);
|
|
return (copyout(&ls, uap->itv, sizeof(ls)));
|
|
}
|
|
|
|
#ifndef __alpha__
|
|
int
|
|
linux_nice(struct thread *td, struct linux_nice_args *args)
|
|
{
|
|
struct setpriority_args bsd_args;
|
|
|
|
bsd_args.which = PRIO_PROCESS;
|
|
bsd_args.who = 0; /* current process */
|
|
bsd_args.prio = args->inc;
|
|
return setpriority(td, &bsd_args);
|
|
}
|
|
#endif /*!__alpha__*/
|
|
|
|
int
|
|
linux_setgroups(struct thread *td, struct linux_setgroups_args *args)
|
|
{
|
|
struct ucred *newcred, *oldcred;
|
|
l_gid_t linux_gidset[NGROUPS];
|
|
gid_t *bsd_gidset;
|
|
int ngrp, error;
|
|
struct proc *p;
|
|
|
|
ngrp = args->gidsetsize;
|
|
if (ngrp < 0 || ngrp >= NGROUPS)
|
|
return (EINVAL);
|
|
error = copyin(args->grouplist, linux_gidset, ngrp * sizeof(l_gid_t));
|
|
if (error)
|
|
return (error);
|
|
newcred = crget();
|
|
p = td->td_proc;
|
|
PROC_LOCK(p);
|
|
oldcred = p->p_ucred;
|
|
|
|
/*
|
|
* cr_groups[0] holds egid. Setting the whole set from
|
|
* the supplied set will cause egid to be changed too.
|
|
* Keep cr_groups[0] unchanged to prevent that.
|
|
*/
|
|
|
|
if ((error = suser_cred(oldcred, SUSER_ALLOWJAIL)) != 0) {
|
|
PROC_UNLOCK(p);
|
|
crfree(newcred);
|
|
return (error);
|
|
}
|
|
|
|
crcopy(newcred, oldcred);
|
|
if (ngrp > 0) {
|
|
newcred->cr_ngroups = ngrp + 1;
|
|
|
|
bsd_gidset = newcred->cr_groups;
|
|
ngrp--;
|
|
while (ngrp >= 0) {
|
|
bsd_gidset[ngrp + 1] = linux_gidset[ngrp];
|
|
ngrp--;
|
|
}
|
|
}
|
|
else
|
|
newcred->cr_ngroups = 1;
|
|
|
|
setsugid(p);
|
|
p->p_ucred = newcred;
|
|
PROC_UNLOCK(p);
|
|
crfree(oldcred);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
linux_getgroups(struct thread *td, struct linux_getgroups_args *args)
|
|
{
|
|
struct ucred *cred;
|
|
l_gid_t linux_gidset[NGROUPS];
|
|
gid_t *bsd_gidset;
|
|
int bsd_gidsetsz, ngrp, error;
|
|
|
|
cred = td->td_ucred;
|
|
bsd_gidset = cred->cr_groups;
|
|
bsd_gidsetsz = cred->cr_ngroups - 1;
|
|
|
|
/*
|
|
* cr_groups[0] holds egid. Returning the whole set
|
|
* here will cause a duplicate. Exclude cr_groups[0]
|
|
* to prevent that.
|
|
*/
|
|
|
|
if ((ngrp = args->gidsetsize) == 0) {
|
|
td->td_retval[0] = bsd_gidsetsz;
|
|
return (0);
|
|
}
|
|
|
|
if (ngrp < bsd_gidsetsz)
|
|
return (EINVAL);
|
|
|
|
ngrp = 0;
|
|
while (ngrp < bsd_gidsetsz) {
|
|
linux_gidset[ngrp] = bsd_gidset[ngrp + 1];
|
|
ngrp++;
|
|
}
|
|
|
|
if ((error = copyout(linux_gidset, args->grouplist,
|
|
ngrp * sizeof(l_gid_t))))
|
|
return (error);
|
|
|
|
td->td_retval[0] = ngrp;
|
|
return (0);
|
|
}
|
|
|
|
#ifndef __alpha__
|
|
int
|
|
linux_setrlimit(struct thread *td, struct linux_setrlimit_args *args)
|
|
{
|
|
struct rlimit bsd_rlim;
|
|
struct l_rlimit rlim;
|
|
u_int which;
|
|
int error;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(setrlimit))
|
|
printf(ARGS(setrlimit, "%d, %p"),
|
|
args->resource, (void *)args->rlim);
|
|
#endif
|
|
|
|
if (args->resource >= LINUX_RLIM_NLIMITS)
|
|
return (EINVAL);
|
|
|
|
which = linux_to_bsd_resource[args->resource];
|
|
if (which == -1)
|
|
return (EINVAL);
|
|
|
|
error = copyin(args->rlim, &rlim, sizeof(rlim));
|
|
if (error)
|
|
return (error);
|
|
|
|
bsd_rlim.rlim_cur = (rlim_t)rlim.rlim_cur;
|
|
bsd_rlim.rlim_max = (rlim_t)rlim.rlim_max;
|
|
return (kern_setrlimit(td, which, &bsd_rlim));
|
|
}
|
|
|
|
int
|
|
linux_old_getrlimit(struct thread *td, struct linux_old_getrlimit_args *args)
|
|
{
|
|
struct l_rlimit rlim;
|
|
struct proc *p = td->td_proc;
|
|
struct rlimit bsd_rlim;
|
|
u_int which;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(old_getrlimit))
|
|
printf(ARGS(old_getrlimit, "%d, %p"),
|
|
args->resource, (void *)args->rlim);
|
|
#endif
|
|
|
|
if (args->resource >= LINUX_RLIM_NLIMITS)
|
|
return (EINVAL);
|
|
|
|
which = linux_to_bsd_resource[args->resource];
|
|
if (which == -1)
|
|
return (EINVAL);
|
|
|
|
PROC_LOCK(p);
|
|
lim_rlimit(p, which, &bsd_rlim);
|
|
PROC_UNLOCK(p);
|
|
|
|
#ifdef COMPAT_LINUX32
|
|
rlim.rlim_cur = (unsigned int)bsd_rlim.rlim_cur;
|
|
if (rlim.rlim_cur == UINT_MAX)
|
|
rlim.rlim_cur = INT_MAX;
|
|
rlim.rlim_max = (unsigned int)bsd_rlim.rlim_max;
|
|
if (rlim.rlim_max == UINT_MAX)
|
|
rlim.rlim_max = INT_MAX;
|
|
#else
|
|
rlim.rlim_cur = (unsigned long)bsd_rlim.rlim_cur;
|
|
if (rlim.rlim_cur == ULONG_MAX)
|
|
rlim.rlim_cur = LONG_MAX;
|
|
rlim.rlim_max = (unsigned long)bsd_rlim.rlim_max;
|
|
if (rlim.rlim_max == ULONG_MAX)
|
|
rlim.rlim_max = LONG_MAX;
|
|
#endif
|
|
return (copyout(&rlim, args->rlim, sizeof(rlim)));
|
|
}
|
|
|
|
int
|
|
linux_getrlimit(struct thread *td, struct linux_getrlimit_args *args)
|
|
{
|
|
struct l_rlimit rlim;
|
|
struct proc *p = td->td_proc;
|
|
struct rlimit bsd_rlim;
|
|
u_int which;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(getrlimit))
|
|
printf(ARGS(getrlimit, "%d, %p"),
|
|
args->resource, (void *)args->rlim);
|
|
#endif
|
|
|
|
if (args->resource >= LINUX_RLIM_NLIMITS)
|
|
return (EINVAL);
|
|
|
|
which = linux_to_bsd_resource[args->resource];
|
|
if (which == -1)
|
|
return (EINVAL);
|
|
|
|
PROC_LOCK(p);
|
|
lim_rlimit(p, which, &bsd_rlim);
|
|
PROC_UNLOCK(p);
|
|
|
|
rlim.rlim_cur = (l_ulong)bsd_rlim.rlim_cur;
|
|
rlim.rlim_max = (l_ulong)bsd_rlim.rlim_max;
|
|
return (copyout(&rlim, args->rlim, sizeof(rlim)));
|
|
}
|
|
#endif /*!__alpha__*/
|
|
|
|
int
|
|
linux_sched_setscheduler(struct thread *td,
|
|
struct linux_sched_setscheduler_args *args)
|
|
{
|
|
struct sched_setscheduler_args bsd;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(sched_setscheduler))
|
|
printf(ARGS(sched_setscheduler, "%d, %d, %p"),
|
|
args->pid, args->policy, (const void *)args->param);
|
|
#endif
|
|
|
|
switch (args->policy) {
|
|
case LINUX_SCHED_OTHER:
|
|
bsd.policy = SCHED_OTHER;
|
|
break;
|
|
case LINUX_SCHED_FIFO:
|
|
bsd.policy = SCHED_FIFO;
|
|
break;
|
|
case LINUX_SCHED_RR:
|
|
bsd.policy = SCHED_RR;
|
|
break;
|
|
default:
|
|
return EINVAL;
|
|
}
|
|
|
|
bsd.pid = args->pid;
|
|
bsd.param = (struct sched_param *)args->param;
|
|
return sched_setscheduler(td, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_sched_getscheduler(struct thread *td,
|
|
struct linux_sched_getscheduler_args *args)
|
|
{
|
|
struct sched_getscheduler_args bsd;
|
|
int error;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(sched_getscheduler))
|
|
printf(ARGS(sched_getscheduler, "%d"), args->pid);
|
|
#endif
|
|
|
|
bsd.pid = args->pid;
|
|
error = sched_getscheduler(td, &bsd);
|
|
|
|
switch (td->td_retval[0]) {
|
|
case SCHED_OTHER:
|
|
td->td_retval[0] = LINUX_SCHED_OTHER;
|
|
break;
|
|
case SCHED_FIFO:
|
|
td->td_retval[0] = LINUX_SCHED_FIFO;
|
|
break;
|
|
case SCHED_RR:
|
|
td->td_retval[0] = LINUX_SCHED_RR;
|
|
break;
|
|
}
|
|
|
|
return error;
|
|
}
|
|
|
|
int
|
|
linux_sched_get_priority_max(struct thread *td,
|
|
struct linux_sched_get_priority_max_args *args)
|
|
{
|
|
struct sched_get_priority_max_args bsd;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(sched_get_priority_max))
|
|
printf(ARGS(sched_get_priority_max, "%d"), args->policy);
|
|
#endif
|
|
|
|
switch (args->policy) {
|
|
case LINUX_SCHED_OTHER:
|
|
bsd.policy = SCHED_OTHER;
|
|
break;
|
|
case LINUX_SCHED_FIFO:
|
|
bsd.policy = SCHED_FIFO;
|
|
break;
|
|
case LINUX_SCHED_RR:
|
|
bsd.policy = SCHED_RR;
|
|
break;
|
|
default:
|
|
return EINVAL;
|
|
}
|
|
return sched_get_priority_max(td, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_sched_get_priority_min(struct thread *td,
|
|
struct linux_sched_get_priority_min_args *args)
|
|
{
|
|
struct sched_get_priority_min_args bsd;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(sched_get_priority_min))
|
|
printf(ARGS(sched_get_priority_min, "%d"), args->policy);
|
|
#endif
|
|
|
|
switch (args->policy) {
|
|
case LINUX_SCHED_OTHER:
|
|
bsd.policy = SCHED_OTHER;
|
|
break;
|
|
case LINUX_SCHED_FIFO:
|
|
bsd.policy = SCHED_FIFO;
|
|
break;
|
|
case LINUX_SCHED_RR:
|
|
bsd.policy = SCHED_RR;
|
|
break;
|
|
default:
|
|
return EINVAL;
|
|
}
|
|
return sched_get_priority_min(td, &bsd);
|
|
}
|
|
|
|
#define REBOOT_CAD_ON 0x89abcdef
|
|
#define REBOOT_CAD_OFF 0
|
|
#define REBOOT_HALT 0xcdef0123
|
|
|
|
int
|
|
linux_reboot(struct thread *td, struct linux_reboot_args *args)
|
|
{
|
|
struct reboot_args bsd_args;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(reboot))
|
|
printf(ARGS(reboot, "0x%x"), args->cmd);
|
|
#endif
|
|
if (args->cmd == REBOOT_CAD_ON || args->cmd == REBOOT_CAD_OFF)
|
|
return (0);
|
|
bsd_args.opt = (args->cmd == REBOOT_HALT) ? RB_HALT : 0;
|
|
return (reboot(td, &bsd_args));
|
|
}
|
|
|
|
#ifndef __alpha__
|
|
|
|
/*
|
|
* The FreeBSD native getpid(2), getgid(2) and getuid(2) also modify
|
|
* td->td_retval[1] when COMPAT_43 is defined. This
|
|
* globbers registers that are assumed to be preserved. The following
|
|
* lightweight syscalls fixes this. See also linux_getgid16() and
|
|
* linux_getuid16() in linux_uid16.c.
|
|
*
|
|
* linux_getpid() - MP SAFE
|
|
* linux_getgid() - MP SAFE
|
|
* linux_getuid() - MP SAFE
|
|
*/
|
|
|
|
int
|
|
linux_getpid(struct thread *td, struct linux_getpid_args *args)
|
|
{
|
|
|
|
td->td_retval[0] = td->td_proc->p_pid;
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
linux_getgid(struct thread *td, struct linux_getgid_args *args)
|
|
{
|
|
|
|
td->td_retval[0] = td->td_ucred->cr_rgid;
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
linux_getuid(struct thread *td, struct linux_getuid_args *args)
|
|
{
|
|
|
|
td->td_retval[0] = td->td_ucred->cr_ruid;
|
|
return (0);
|
|
}
|
|
|
|
#endif /*!__alpha__*/
|
|
|
|
int
|
|
linux_getsid(struct thread *td, struct linux_getsid_args *args)
|
|
{
|
|
struct getsid_args bsd;
|
|
bsd.pid = args->pid;
|
|
return getsid(td, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_nosys(struct thread *td, struct nosys_args *ignore)
|
|
{
|
|
|
|
return (ENOSYS);
|
|
}
|