836 lines
20 KiB
C
836 lines
20 KiB
C
/*-
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* Copyright (c) 2000 Marcel Moolenaar
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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 <sys/param.h>
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#include <sys/systm.h>
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#include <sys/capsicum.h>
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#include <sys/file.h>
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#include <sys/fcntl.h>
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#include <sys/imgact.h>
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#include <sys/lock.h>
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#include <sys/malloc.h>
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#include <sys/mman.h>
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#include <sys/mutex.h>
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#include <sys/sx.h>
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#include <sys/priv.h>
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#include <sys/proc.h>
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#include <sys/queue.h>
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#include <sys/resource.h>
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#include <sys/resourcevar.h>
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#include <sys/signalvar.h>
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#include <sys/syscallsubr.h>
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#include <sys/sysproto.h>
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#include <sys/unistd.h>
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#include <sys/wait.h>
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#include <sys/sched.h>
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#include <machine/frame.h>
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#include <machine/psl.h>
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#include <machine/segments.h>
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#include <machine/sysarch.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <vm/vm_map.h>
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#include <i386/linux/linux.h>
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#include <i386/linux/linux_proto.h>
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#include <compat/linux/linux_ipc.h>
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#include <compat/linux/linux_misc.h>
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#include <compat/linux/linux_mmap.h>
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#include <compat/linux/linux_signal.h>
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#include <compat/linux/linux_util.h>
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#include <compat/linux/linux_emul.h>
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#include <i386/include/pcb.h> /* needed for pcb definition in linux_set_thread_area */
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#include "opt_posix.h"
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extern struct sysentvec elf32_freebsd_sysvec; /* defined in i386/i386/elf_machdep.c */
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struct l_descriptor {
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l_uint entry_number;
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l_ulong base_addr;
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l_uint limit;
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l_uint seg_32bit:1;
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l_uint contents:2;
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l_uint read_exec_only:1;
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l_uint limit_in_pages:1;
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l_uint seg_not_present:1;
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l_uint useable:1;
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};
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struct l_old_select_argv {
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l_int nfds;
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l_fd_set *readfds;
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l_fd_set *writefds;
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l_fd_set *exceptfds;
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struct l_timeval *timeout;
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};
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int
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linux_execve(struct thread *td, struct linux_execve_args *args)
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{
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struct image_args eargs;
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char *newpath;
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int error;
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LCONVPATHEXIST(td, args->path, &newpath);
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#ifdef DEBUG
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if (ldebug(execve))
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printf(ARGS(execve, "%s"), newpath);
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#endif
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error = exec_copyin_args(&eargs, newpath, UIO_SYSSPACE,
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args->argp, args->envp);
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free(newpath, M_TEMP);
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if (error == 0)
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error = linux_common_execve(td, &eargs);
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return (error);
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}
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struct l_ipc_kludge {
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struct l_msgbuf *msgp;
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l_long msgtyp;
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};
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int
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linux_ipc(struct thread *td, struct linux_ipc_args *args)
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{
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switch (args->what & 0xFFFF) {
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case LINUX_SEMOP: {
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struct linux_semop_args a;
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a.semid = args->arg1;
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a.tsops = args->ptr;
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a.nsops = args->arg2;
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return (linux_semop(td, &a));
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}
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case LINUX_SEMGET: {
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struct linux_semget_args a;
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a.key = args->arg1;
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a.nsems = args->arg2;
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a.semflg = args->arg3;
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return (linux_semget(td, &a));
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}
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case LINUX_SEMCTL: {
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struct linux_semctl_args a;
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int error;
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a.semid = args->arg1;
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a.semnum = args->arg2;
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a.cmd = args->arg3;
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error = copyin(args->ptr, &a.arg, sizeof(a.arg));
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if (error)
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return (error);
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return (linux_semctl(td, &a));
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}
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case LINUX_MSGSND: {
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struct linux_msgsnd_args a;
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a.msqid = args->arg1;
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a.msgp = args->ptr;
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a.msgsz = args->arg2;
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a.msgflg = args->arg3;
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return (linux_msgsnd(td, &a));
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}
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case LINUX_MSGRCV: {
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struct linux_msgrcv_args a;
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a.msqid = args->arg1;
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a.msgsz = args->arg2;
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a.msgflg = args->arg3;
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if ((args->what >> 16) == 0) {
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struct l_ipc_kludge tmp;
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int error;
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if (args->ptr == NULL)
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return (EINVAL);
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error = copyin(args->ptr, &tmp, sizeof(tmp));
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if (error)
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return (error);
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a.msgp = tmp.msgp;
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a.msgtyp = tmp.msgtyp;
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} else {
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a.msgp = args->ptr;
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a.msgtyp = args->arg5;
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}
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return (linux_msgrcv(td, &a));
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}
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case LINUX_MSGGET: {
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struct linux_msgget_args a;
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a.key = args->arg1;
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a.msgflg = args->arg2;
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return (linux_msgget(td, &a));
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}
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case LINUX_MSGCTL: {
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struct linux_msgctl_args a;
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a.msqid = args->arg1;
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a.cmd = args->arg2;
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a.buf = args->ptr;
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return (linux_msgctl(td, &a));
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}
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case LINUX_SHMAT: {
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struct linux_shmat_args a;
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a.shmid = args->arg1;
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a.shmaddr = args->ptr;
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a.shmflg = args->arg2;
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a.raddr = (l_ulong *)args->arg3;
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return (linux_shmat(td, &a));
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}
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case LINUX_SHMDT: {
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struct linux_shmdt_args a;
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a.shmaddr = args->ptr;
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return (linux_shmdt(td, &a));
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}
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case LINUX_SHMGET: {
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struct linux_shmget_args a;
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a.key = args->arg1;
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a.size = args->arg2;
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a.shmflg = args->arg3;
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return (linux_shmget(td, &a));
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}
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case LINUX_SHMCTL: {
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struct linux_shmctl_args a;
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a.shmid = args->arg1;
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a.cmd = args->arg2;
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a.buf = args->ptr;
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return (linux_shmctl(td, &a));
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}
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default:
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break;
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}
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return (EINVAL);
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}
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int
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linux_old_select(struct thread *td, struct linux_old_select_args *args)
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{
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struct l_old_select_argv linux_args;
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struct linux_select_args newsel;
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int error;
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#ifdef DEBUG
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if (ldebug(old_select))
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printf(ARGS(old_select, "%p"), args->ptr);
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#endif
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error = copyin(args->ptr, &linux_args, sizeof(linux_args));
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if (error)
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return (error);
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newsel.nfds = linux_args.nfds;
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newsel.readfds = linux_args.readfds;
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newsel.writefds = linux_args.writefds;
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newsel.exceptfds = linux_args.exceptfds;
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newsel.timeout = linux_args.timeout;
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return (linux_select(td, &newsel));
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}
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int
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linux_set_cloned_tls(struct thread *td, void *desc)
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{
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struct segment_descriptor sd;
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struct l_user_desc info;
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int idx, error;
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int a[2];
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error = copyin(desc, &info, sizeof(struct l_user_desc));
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if (error) {
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printf(LMSG("copyin failed!"));
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} else {
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idx = info.entry_number;
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/*
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* looks like we're getting the idx we returned
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* in the set_thread_area() syscall
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*/
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if (idx != 6 && idx != 3) {
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printf(LMSG("resetting idx!"));
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idx = 3;
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}
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/* this doesnt happen in practice */
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if (idx == 6) {
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/* we might copy out the entry_number as 3 */
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info.entry_number = 3;
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error = copyout(&info, desc, sizeof(struct l_user_desc));
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if (error)
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printf(LMSG("copyout failed!"));
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}
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a[0] = LINUX_LDT_entry_a(&info);
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a[1] = LINUX_LDT_entry_b(&info);
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memcpy(&sd, &a, sizeof(a));
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#ifdef DEBUG
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if (ldebug(clone))
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printf("Segment created in clone with "
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"CLONE_SETTLS: lobase: %x, hibase: %x, "
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"lolimit: %x, hilimit: %x, type: %i, "
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"dpl: %i, p: %i, xx: %i, def32: %i, "
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"gran: %i\n", sd.sd_lobase, sd.sd_hibase,
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sd.sd_lolimit, sd.sd_hilimit, sd.sd_type,
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sd.sd_dpl, sd.sd_p, sd.sd_xx,
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sd.sd_def32, sd.sd_gran);
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#endif
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/* set %gs */
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td->td_pcb->pcb_gsd = sd;
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td->td_pcb->pcb_gs = GSEL(GUGS_SEL, SEL_UPL);
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}
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return (error);
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}
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int
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linux_set_upcall_kse(struct thread *td, register_t stack)
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{
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if (stack)
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td->td_frame->tf_esp = stack;
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/*
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* The newly created Linux thread returns
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* to the user space by the same path that a parent do.
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*/
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td->td_frame->tf_eax = 0;
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return (0);
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}
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int
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linux_mmap2(struct thread *td, struct linux_mmap2_args *args)
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{
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#ifdef DEBUG
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if (ldebug(mmap2))
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printf(ARGS(mmap2, "%p, %d, %d, 0x%08x, %d, %d"),
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(void *)args->addr, args->len, args->prot,
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args->flags, args->fd, args->pgoff);
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#endif
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return (linux_mmap_common(td, args->addr, args->len, args->prot,
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args->flags, args->fd, (uint64_t)(uint32_t)args->pgoff *
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PAGE_SIZE));
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}
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int
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linux_mmap(struct thread *td, struct linux_mmap_args *args)
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{
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int error;
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struct l_mmap_argv linux_args;
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error = copyin(args->ptr, &linux_args, sizeof(linux_args));
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if (error)
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return (error);
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#ifdef DEBUG
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if (ldebug(mmap))
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printf(ARGS(mmap, "%p, %d, %d, 0x%08x, %d, %d"),
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(void *)linux_args.addr, linux_args.len, linux_args.prot,
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linux_args.flags, linux_args.fd, linux_args.pgoff);
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#endif
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return (linux_mmap_common(td, linux_args.addr, linux_args.len,
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linux_args.prot, linux_args.flags, linux_args.fd,
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(uint32_t)linux_args.pgoff));
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}
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int
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linux_mprotect(struct thread *td, struct linux_mprotect_args *uap)
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{
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return (linux_mprotect_common(td, PTROUT(uap->addr), uap->len, uap->prot));
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}
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int
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linux_ioperm(struct thread *td, struct linux_ioperm_args *args)
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{
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int error;
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struct i386_ioperm_args iia;
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iia.start = args->start;
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iia.length = args->length;
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iia.enable = args->enable;
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error = i386_set_ioperm(td, &iia);
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return (error);
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}
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int
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linux_iopl(struct thread *td, struct linux_iopl_args *args)
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{
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int error;
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if (args->level < 0 || args->level > 3)
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return (EINVAL);
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if ((error = priv_check(td, PRIV_IO)) != 0)
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return (error);
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if ((error = securelevel_gt(td->td_ucred, 0)) != 0)
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return (error);
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td->td_frame->tf_eflags = (td->td_frame->tf_eflags & ~PSL_IOPL) |
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(args->level * (PSL_IOPL / 3));
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return (0);
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}
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int
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linux_modify_ldt(struct thread *td, struct linux_modify_ldt_args *uap)
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{
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int error;
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struct i386_ldt_args ldt;
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struct l_descriptor ld;
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union descriptor desc;
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int size, written;
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switch (uap->func) {
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case 0x00: /* read_ldt */
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ldt.start = 0;
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ldt.descs = uap->ptr;
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ldt.num = uap->bytecount / sizeof(union descriptor);
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error = i386_get_ldt(td, &ldt);
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td->td_retval[0] *= sizeof(union descriptor);
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break;
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case 0x02: /* read_default_ldt = 0 */
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size = 5*sizeof(struct l_desc_struct);
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if (size > uap->bytecount)
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size = uap->bytecount;
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for (written = error = 0; written < size && error == 0; written++)
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error = subyte((char *)uap->ptr + written, 0);
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td->td_retval[0] = written;
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break;
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case 0x01: /* write_ldt */
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case 0x11: /* write_ldt */
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if (uap->bytecount != sizeof(ld))
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return (EINVAL);
|
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|
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error = copyin(uap->ptr, &ld, sizeof(ld));
|
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if (error)
|
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return (error);
|
|
|
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ldt.start = ld.entry_number;
|
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ldt.descs = &desc;
|
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ldt.num = 1;
|
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desc.sd.sd_lolimit = (ld.limit & 0x0000ffff);
|
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desc.sd.sd_hilimit = (ld.limit & 0x000f0000) >> 16;
|
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desc.sd.sd_lobase = (ld.base_addr & 0x00ffffff);
|
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desc.sd.sd_hibase = (ld.base_addr & 0xff000000) >> 24;
|
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desc.sd.sd_type = SDT_MEMRO | ((ld.read_exec_only ^ 1) << 1) |
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(ld.contents << 2);
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desc.sd.sd_dpl = 3;
|
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desc.sd.sd_p = (ld.seg_not_present ^ 1);
|
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desc.sd.sd_xx = 0;
|
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desc.sd.sd_def32 = ld.seg_32bit;
|
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desc.sd.sd_gran = ld.limit_in_pages;
|
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error = i386_set_ldt(td, &ldt, &desc);
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break;
|
|
default:
|
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error = ENOSYS;
|
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break;
|
|
}
|
|
|
|
if (error == EOPNOTSUPP) {
|
|
printf("linux: modify_ldt needs kernel option USER_LDT\n");
|
|
error = ENOSYS;
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
int
|
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linux_sigaction(struct thread *td, struct linux_sigaction_args *args)
|
|
{
|
|
l_osigaction_t osa;
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l_sigaction_t act, oact;
|
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int error;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(sigaction))
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printf(ARGS(sigaction, "%d, %p, %p"),
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args->sig, (void *)args->nsa, (void *)args->osa);
|
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#endif
|
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|
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if (args->nsa != NULL) {
|
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error = copyin(args->nsa, &osa, sizeof(l_osigaction_t));
|
|
if (error)
|
|
return (error);
|
|
act.lsa_handler = osa.lsa_handler;
|
|
act.lsa_flags = osa.lsa_flags;
|
|
act.lsa_restorer = osa.lsa_restorer;
|
|
LINUX_SIGEMPTYSET(act.lsa_mask);
|
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act.lsa_mask.__mask = osa.lsa_mask;
|
|
}
|
|
|
|
error = linux_do_sigaction(td, args->sig, args->nsa ? &act : NULL,
|
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args->osa ? &oact : NULL);
|
|
|
|
if (args->osa != NULL && !error) {
|
|
osa.lsa_handler = oact.lsa_handler;
|
|
osa.lsa_flags = oact.lsa_flags;
|
|
osa.lsa_restorer = oact.lsa_restorer;
|
|
osa.lsa_mask = oact.lsa_mask.__mask;
|
|
error = copyout(&osa, args->osa, sizeof(l_osigaction_t));
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Linux has two extra args, restart and oldmask. We dont use these,
|
|
* but it seems that "restart" is actually a context pointer that
|
|
* enables the signal to happen with a different register set.
|
|
*/
|
|
int
|
|
linux_sigsuspend(struct thread *td, struct linux_sigsuspend_args *args)
|
|
{
|
|
sigset_t sigmask;
|
|
l_sigset_t mask;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(sigsuspend))
|
|
printf(ARGS(sigsuspend, "%08lx"), (unsigned long)args->mask);
|
|
#endif
|
|
|
|
LINUX_SIGEMPTYSET(mask);
|
|
mask.__mask = args->mask;
|
|
linux_to_bsd_sigset(&mask, &sigmask);
|
|
return (kern_sigsuspend(td, sigmask));
|
|
}
|
|
|
|
int
|
|
linux_rt_sigsuspend(struct thread *td, struct linux_rt_sigsuspend_args *uap)
|
|
{
|
|
l_sigset_t lmask;
|
|
sigset_t sigmask;
|
|
int error;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(rt_sigsuspend))
|
|
printf(ARGS(rt_sigsuspend, "%p, %d"),
|
|
(void *)uap->newset, uap->sigsetsize);
|
|
#endif
|
|
|
|
if (uap->sigsetsize != sizeof(l_sigset_t))
|
|
return (EINVAL);
|
|
|
|
error = copyin(uap->newset, &lmask, sizeof(l_sigset_t));
|
|
if (error)
|
|
return (error);
|
|
|
|
linux_to_bsd_sigset(&lmask, &sigmask);
|
|
return (kern_sigsuspend(td, sigmask));
|
|
}
|
|
|
|
int
|
|
linux_pause(struct thread *td, struct linux_pause_args *args)
|
|
{
|
|
struct proc *p = td->td_proc;
|
|
sigset_t sigmask;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(pause))
|
|
printf(ARGS(pause, ""));
|
|
#endif
|
|
|
|
PROC_LOCK(p);
|
|
sigmask = td->td_sigmask;
|
|
PROC_UNLOCK(p);
|
|
return (kern_sigsuspend(td, sigmask));
|
|
}
|
|
|
|
int
|
|
linux_sigaltstack(struct thread *td, struct linux_sigaltstack_args *uap)
|
|
{
|
|
stack_t ss, oss;
|
|
l_stack_t lss;
|
|
int error;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(sigaltstack))
|
|
printf(ARGS(sigaltstack, "%p, %p"), uap->uss, uap->uoss);
|
|
#endif
|
|
|
|
if (uap->uss != NULL) {
|
|
error = copyin(uap->uss, &lss, sizeof(l_stack_t));
|
|
if (error)
|
|
return (error);
|
|
|
|
ss.ss_sp = lss.ss_sp;
|
|
ss.ss_size = lss.ss_size;
|
|
ss.ss_flags = linux_to_bsd_sigaltstack(lss.ss_flags);
|
|
}
|
|
error = kern_sigaltstack(td, (uap->uss != NULL) ? &ss : NULL,
|
|
(uap->uoss != NULL) ? &oss : NULL);
|
|
if (!error && uap->uoss != NULL) {
|
|
lss.ss_sp = oss.ss_sp;
|
|
lss.ss_size = oss.ss_size;
|
|
lss.ss_flags = bsd_to_linux_sigaltstack(oss.ss_flags);
|
|
error = copyout(&lss, uap->uoss, sizeof(l_stack_t));
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_ftruncate64(struct thread *td, struct linux_ftruncate64_args *args)
|
|
{
|
|
struct ftruncate_args sa;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(ftruncate64))
|
|
printf(ARGS(ftruncate64, "%u, %jd"), args->fd,
|
|
(intmax_t)args->length);
|
|
#endif
|
|
|
|
sa.fd = args->fd;
|
|
sa.length = args->length;
|
|
return sys_ftruncate(td, &sa);
|
|
}
|
|
|
|
int
|
|
linux_set_thread_area(struct thread *td, struct linux_set_thread_area_args *args)
|
|
{
|
|
struct l_user_desc info;
|
|
int error;
|
|
int idx;
|
|
int a[2];
|
|
struct segment_descriptor sd;
|
|
|
|
error = copyin(args->desc, &info, sizeof(struct l_user_desc));
|
|
if (error)
|
|
return (error);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(set_thread_area))
|
|
printf(ARGS(set_thread_area, "%i, %x, %x, %i, %i, %i, %i, %i, %i\n"),
|
|
info.entry_number,
|
|
info.base_addr,
|
|
info.limit,
|
|
info.seg_32bit,
|
|
info.contents,
|
|
info.read_exec_only,
|
|
info.limit_in_pages,
|
|
info.seg_not_present,
|
|
info.useable);
|
|
#endif
|
|
|
|
idx = info.entry_number;
|
|
/*
|
|
* Semantics of linux version: every thread in the system has array of
|
|
* 3 tls descriptors. 1st is GLIBC TLS, 2nd is WINE, 3rd unknown. This
|
|
* syscall loads one of the selected tls decriptors with a value and
|
|
* also loads GDT descriptors 6, 7 and 8 with the content of the
|
|
* per-thread descriptors.
|
|
*
|
|
* Semantics of fbsd version: I think we can ignore that linux has 3
|
|
* per-thread descriptors and use just the 1st one. The tls_array[]
|
|
* is used only in set/get-thread_area() syscalls and for loading the
|
|
* GDT descriptors. In fbsd we use just one GDT descriptor for TLS so
|
|
* we will load just one.
|
|
*
|
|
* XXX: this doesn't work when a user space process tries to use more
|
|
* than 1 TLS segment. Comment in the linux sources says wine might do
|
|
* this.
|
|
*/
|
|
|
|
/*
|
|
* we support just GLIBC TLS now
|
|
* we should let 3 proceed as well because we use this segment so
|
|
* if code does two subsequent calls it should succeed
|
|
*/
|
|
if (idx != 6 && idx != -1 && idx != 3)
|
|
return (EINVAL);
|
|
|
|
/*
|
|
* we have to copy out the GDT entry we use
|
|
* FreeBSD uses GDT entry #3 for storing %gs so load that
|
|
*
|
|
* XXX: what if a user space program doesn't check this value and tries
|
|
* to use 6, 7 or 8?
|
|
*/
|
|
idx = info.entry_number = 3;
|
|
error = copyout(&info, args->desc, sizeof(struct l_user_desc));
|
|
if (error)
|
|
return (error);
|
|
|
|
if (LINUX_LDT_empty(&info)) {
|
|
a[0] = 0;
|
|
a[1] = 0;
|
|
} else {
|
|
a[0] = LINUX_LDT_entry_a(&info);
|
|
a[1] = LINUX_LDT_entry_b(&info);
|
|
}
|
|
|
|
memcpy(&sd, &a, sizeof(a));
|
|
#ifdef DEBUG
|
|
if (ldebug(set_thread_area))
|
|
printf("Segment created in set_thread_area: lobase: %x, hibase: %x, lolimit: %x, hilimit: %x, type: %i, dpl: %i, p: %i, xx: %i, def32: %i, gran: %i\n", sd.sd_lobase,
|
|
sd.sd_hibase,
|
|
sd.sd_lolimit,
|
|
sd.sd_hilimit,
|
|
sd.sd_type,
|
|
sd.sd_dpl,
|
|
sd.sd_p,
|
|
sd.sd_xx,
|
|
sd.sd_def32,
|
|
sd.sd_gran);
|
|
#endif
|
|
|
|
/* this is taken from i386 version of cpu_set_user_tls() */
|
|
critical_enter();
|
|
/* set %gs */
|
|
td->td_pcb->pcb_gsd = sd;
|
|
PCPU_GET(fsgs_gdt)[1] = sd;
|
|
load_gs(GSEL(GUGS_SEL, SEL_UPL));
|
|
critical_exit();
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
linux_get_thread_area(struct thread *td, struct linux_get_thread_area_args *args)
|
|
{
|
|
|
|
struct l_user_desc info;
|
|
int error;
|
|
int idx;
|
|
struct l_desc_struct desc;
|
|
struct segment_descriptor sd;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(get_thread_area))
|
|
printf(ARGS(get_thread_area, "%p"), args->desc);
|
|
#endif
|
|
|
|
error = copyin(args->desc, &info, sizeof(struct l_user_desc));
|
|
if (error)
|
|
return (error);
|
|
|
|
idx = info.entry_number;
|
|
/* XXX: I am not sure if we want 3 to be allowed too. */
|
|
if (idx != 6 && idx != 3)
|
|
return (EINVAL);
|
|
|
|
idx = 3;
|
|
|
|
memset(&info, 0, sizeof(info));
|
|
|
|
sd = PCPU_GET(fsgs_gdt)[1];
|
|
|
|
memcpy(&desc, &sd, sizeof(desc));
|
|
|
|
info.entry_number = idx;
|
|
info.base_addr = LINUX_GET_BASE(&desc);
|
|
info.limit = LINUX_GET_LIMIT(&desc);
|
|
info.seg_32bit = LINUX_GET_32BIT(&desc);
|
|
info.contents = LINUX_GET_CONTENTS(&desc);
|
|
info.read_exec_only = !LINUX_GET_WRITABLE(&desc);
|
|
info.limit_in_pages = LINUX_GET_LIMIT_PAGES(&desc);
|
|
info.seg_not_present = !LINUX_GET_PRESENT(&desc);
|
|
info.useable = LINUX_GET_USEABLE(&desc);
|
|
|
|
error = copyout(&info, args->desc, sizeof(struct l_user_desc));
|
|
if (error)
|
|
return (EFAULT);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/* XXX: this wont work with module - convert it */
|
|
int
|
|
linux_mq_open(struct thread *td, struct linux_mq_open_args *args)
|
|
{
|
|
#ifdef P1003_1B_MQUEUE
|
|
return sys_kmq_open(td, (struct kmq_open_args *) args);
|
|
#else
|
|
return (ENOSYS);
|
|
#endif
|
|
}
|
|
|
|
int
|
|
linux_mq_unlink(struct thread *td, struct linux_mq_unlink_args *args)
|
|
{
|
|
#ifdef P1003_1B_MQUEUE
|
|
return sys_kmq_unlink(td, (struct kmq_unlink_args *) args);
|
|
#else
|
|
return (ENOSYS);
|
|
#endif
|
|
}
|
|
|
|
int
|
|
linux_mq_timedsend(struct thread *td, struct linux_mq_timedsend_args *args)
|
|
{
|
|
#ifdef P1003_1B_MQUEUE
|
|
return sys_kmq_timedsend(td, (struct kmq_timedsend_args *) args);
|
|
#else
|
|
return (ENOSYS);
|
|
#endif
|
|
}
|
|
|
|
int
|
|
linux_mq_timedreceive(struct thread *td, struct linux_mq_timedreceive_args *args)
|
|
{
|
|
#ifdef P1003_1B_MQUEUE
|
|
return sys_kmq_timedreceive(td, (struct kmq_timedreceive_args *) args);
|
|
#else
|
|
return (ENOSYS);
|
|
#endif
|
|
}
|
|
|
|
int
|
|
linux_mq_notify(struct thread *td, struct linux_mq_notify_args *args)
|
|
{
|
|
#ifdef P1003_1B_MQUEUE
|
|
return sys_kmq_notify(td, (struct kmq_notify_args *) args);
|
|
#else
|
|
return (ENOSYS);
|
|
#endif
|
|
}
|
|
|
|
int
|
|
linux_mq_getsetattr(struct thread *td, struct linux_mq_getsetattr_args *args)
|
|
{
|
|
#ifdef P1003_1B_MQUEUE
|
|
return sys_kmq_setattr(td, (struct kmq_setattr_args *) args);
|
|
#else
|
|
return (ENOSYS);
|
|
#endif
|
|
}
|