/*      $NetBSD: kern_ipc_10.c,v 1.26 2019/01/27 02:08:39 pgoyette Exp $        */

/*
 * Copyright (c) 1994 Adam Glass and Charles M. Hannum.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by Adam Glass and Charles M.
 *      Hannum.
 * 4. The names of the authors may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_ipc_10.c,v 1.26 2019/01/27 02:08:39 pgoyette Exp $");

#ifdef _KERNEL_OPT
#include "opt_compat_netbsd.h"
#include "opt_sysv.h"
#endif

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/sem.h>
#include <sys/shm.h>

#include <sys/mount.h>
#include <sys/syscallargs.h>

#include <compat/common/compat_util.h>
#include <compat/sys/shm.h>
#include <compat/sys/sem.h>

#if defined(SYSVSEM) && !defined(_LP64)
int
compat_10_sys_semsys(struct lwp *l, const struct compat_10_sys_semsys_args *uap, register_t *retval)
{
        /* {
                syscallarg(int) which;
                syscallarg(int) a2;
                syscallarg(int) a3;
                syscallarg(int) a4;
                syscallarg(int) a5;
        } */
        struct sys_semget_args /* {
                syscallarg(key_t) key;
                syscallarg(int) nsems;
                syscallarg(int) semflg;
        } */ semget_args;
        struct sys_semop_args /* {
                syscallarg(int) semid;
                syscallarg(struct sembuf *) sops;
                syscallarg(u_int) nsops;
        } */ semop_args;
        struct sys_semconfig_args /* {
                syscallarg(int) flag;
        } */ semconfig_args;
        struct semid_ds sembuf;
        struct semid_ds14 osembuf;
        void *pass_arg;
        int a5 = SCARG(uap, a5);
        int error;

        switch (SCARG(uap, which)) {
        case 0:                                         /* __semctl() */
#define semctl_semid    SCARG(uap, a2)
#define semctl_semnum   SCARG(uap, a3)
#define semctl_cmd      SCARG(uap, a4)
#define semctl_arg      ((union __semun *)&a5)
                pass_arg = get_semctl_arg(semctl_cmd, &sembuf, semctl_arg);
                if (semctl_cmd == IPC_SET) {
                        error = copyin(semctl_arg->buf, &osembuf, sizeof osembuf);
                        if (error != 0)
                                return error;
                        __semid_ds14_to_native(&osembuf, &sembuf);
                }
                error = semctl1(l, semctl_semid, semctl_semnum, semctl_cmd, 
                    pass_arg, retval);
                if (error == 0 && semctl_cmd == IPC_STAT) {
                        __native_to_semid_ds14(&sembuf, &osembuf);
                        error = copyout(&osembuf, semctl_arg->buf, sizeof(osembuf));
                }
                return error;
#undef  semctl_semid
#undef  semctl_semnum
#undef  semctl_cmd
#undef  semctl_arg

        case 1:                                         /* semget() */
                SCARG(&semget_args, key) = SCARG(uap, a2);
                SCARG(&semget_args, nsems) = SCARG(uap, a3);
                SCARG(&semget_args, semflg) = SCARG(uap, a4);
                return (sys_semget(l, &semget_args, retval));

        case 2:                                         /* semop() */
                SCARG(&semop_args, semid) = SCARG(uap, a2);
                SCARG(&semop_args, sops) =
                    (struct sembuf *)(u_long)SCARG(uap, a3);
                SCARG(&semop_args, nsops) = SCARG(uap, a4);
                return (sys_semop(l, &semop_args, retval));

        case 3:                                         /* semconfig() */
                SCARG(&semconfig_args, flag) = SCARG(uap, a2);
                return (sys_semconfig(l, &semconfig_args, retval));

        default:
                return (EINVAL);
        }
}
#endif

#if defined(SYSVSHM) && !defined(_LP64)
int
compat_10_sys_shmsys(struct lwp *l, const struct compat_10_sys_shmsys_args *uap, register_t *retval)
{
        /* {
                syscallarg(int) which;
                syscallarg(int) a2;
                syscallarg(int) a3;
                syscallarg(int) a4;
        } */
        struct sys_shmat_args /* {
                syscallarg(int) shmid;
                syscallarg(void *) shmaddr;
                syscallarg(int) shmflg;
        } */ shmat_args;
        struct compat_14_sys_shmctl_args /* {
                syscallarg(int) shmid;
                syscallarg(int) cmd;
                syscallarg(struct shmid14_ds *) buf;
        } */ shmctl_args;
        struct sys_shmdt_args /* {
                syscallarg(void *) shmaddr;
        } */ shmdt_args;
        struct sys_shmget_args /* {
                syscallarg(key_t) key;
                syscallarg(int) size;
                syscallarg(int) shmflg;
        } */ shmget_args;

        switch (SCARG(uap, which)) {
        case 0:                                         /* shmat() */
                SCARG(&shmat_args, shmid) = SCARG(uap, a2);
                SCARG(&shmat_args, shmaddr) =
                    (void *)(u_long)SCARG(uap, a3);
                SCARG(&shmat_args, shmflg) = SCARG(uap, a4);
                return (sys_shmat(l, &shmat_args, retval));

        case 1:                                         /* shmctl() */
                SCARG(&shmctl_args, shmid) = SCARG(uap, a2);
                SCARG(&shmctl_args, cmd) = SCARG(uap, a3);
                SCARG(&shmctl_args, buf) =
                    (struct shmid_ds14 *)(u_long)SCARG(uap, a4);
                return (compat_14_sys_shmctl(l, &shmctl_args, retval));

        case 2:                                         /* shmdt() */
                SCARG(&shmdt_args, shmaddr) =
                    (void *)(u_long)SCARG(uap, a2);
                return (sys_shmdt(l, &shmdt_args, retval));

        case 3:                                         /* shmget() */
                SCARG(&shmget_args, key) = SCARG(uap, a2);
                SCARG(&shmget_args, size) = SCARG(uap, a3);
                SCARG(&shmget_args, shmflg) = SCARG(uap, a4);
                return (sys_shmget(l, &shmget_args, retval));

        default:
                return (EINVAL);
        }
}
#endif

#if defined(SYSVMSG) && !defined(_LP64)
int
compat_10_sys_msgsys(struct lwp *l, const struct compat_10_sys_msgsys_args *uap, register_t *retval)
{
        /* {
                syscallarg(int) which;
                syscallarg(int) a2;
                syscallarg(int) a3;
                syscallarg(int) a4;
                syscallarg(int) a5;
                syscallarg(int) a6;
        } */
        struct compat_14_sys_msgctl_args /* {
                syscallarg(int) msqid;
                syscallarg(int) cmd;
                syscallarg(struct msqid14_ds *) buf;
        } */ msgctl_args;
        struct sys_msgget_args /* {
                syscallarg(key_t) key;
                syscallarg(int) msgflg;
        } */ msgget_args;
        struct sys_msgsnd_args /* {
                syscallarg(int) msqid;
                syscallarg(void *) msgp;
                syscallarg(size_t) msgsz;
                syscallarg(int) msgflg;
        } */ msgsnd_args;
        struct sys_msgrcv_args /* {
                syscallarg(int) msqid;
                syscallarg(void *) msgp;
                syscallarg(size_t) msgsz;
                syscallarg(long) msgtyp;
                syscallarg(int) msgflg;
        } */ msgrcv_args;

        switch (SCARG(uap, which)) {
        case 0:                                 /* msgctl()*/
                SCARG(&msgctl_args, msqid) = SCARG(uap, a2);
                SCARG(&msgctl_args, cmd) = SCARG(uap, a3);
                SCARG(&msgctl_args, buf) =
                    (struct msqid_ds14 *)(u_long)SCARG(uap, a4);
                return (compat_14_sys_msgctl(l, &msgctl_args, retval));

        case 1:                                 /* msgget() */
                SCARG(&msgget_args, key) = SCARG(uap, a2);
                SCARG(&msgget_args, msgflg) = SCARG(uap, a3);
                return (sys_msgget(l, &msgget_args, retval));

        case 2:                                 /* msgsnd() */
                SCARG(&msgsnd_args, msqid) = SCARG(uap, a2);
                SCARG(&msgsnd_args, msgp) =
                    (void *)(u_long)SCARG(uap, a3);
                SCARG(&msgsnd_args, msgsz) = SCARG(uap, a4);
                SCARG(&msgsnd_args, msgflg) = SCARG(uap, a5);
                return (sys_msgsnd(l, &msgsnd_args, retval));

        case 3:                                 /* msgrcv() */
                SCARG(&msgrcv_args, msqid) = SCARG(uap, a2);
                SCARG(&msgrcv_args, msgp) =
                    (void *)(u_long)SCARG(uap, a3);
                SCARG(&msgrcv_args, msgsz) = SCARG(uap, a4);
                SCARG(&msgrcv_args, msgtyp) = SCARG(uap, a5);
                SCARG(&msgrcv_args, msgflg) = SCARG(uap, a6);
                return (sys_msgrcv(l, &msgrcv_args, retval));

        default:
                return (EINVAL);
        }
}
#endif