sys/compat/freebsd/freebsd_ipc.c

   1 /*      $NetBSD: freebsd_ipc.c,v 1.15.8.1 2008/03/29 20:46:58 christos Exp $    */
   2
   3 /*
   4  * Copyright (c) 1994 Adam Glass and Charles M. Hannum.  All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. All advertising materials mentioning features or use of this software
  15  *    must display the following acknowledgement:
  16  *      This product includes software developed by Adam Glass and Charles M.
  17  *      Hannum.
  18  * 4. The names of the authors may not be used to endorse or promote products
  19  *    derived from this software without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
  22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  24  * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __KERNEL_RCSID(0, "$NetBSD: freebsd_ipc.c,v 1.15.8.1 2008/03/29 20:46:58 christos Exp $");
  35
  36 #if defined(_KERNEL_OPT)
  37 #include "opt_sysv.h"
  38 #endif
  39
  40 #include <sys/param.h>
  41 #include <sys/systm.h>
  42 #include <sys/kernel.h>
  43 #include <sys/proc.h>
  44 #include <sys/sem.h>
  45 #include <sys/shm.h>
  46 #include <sys/malloc.h>
  47
  48 #include <sys/mount.h>
  49 #include <sys/syscallargs.h>
  50
  51 #include <compat/sys/shm.h>
  52 #include <compat/freebsd/freebsd_syscallargs.h>
  53
  54 #ifdef SYSVSEM
  55 int
  56 freebsd_sys_semsys(struct lwp *l, const struct freebsd_sys_semsys_args *uap, register_t *retval)
  57 {
  58         /* {
  59                 syscallarg(int) which;
  60                 syscallarg(int) a2;
  61                 syscallarg(int) a3;
  62                 syscallarg(int) a4;
  63                 syscallarg(int) a5;
  64         } */
  65         struct compat_14_sys___semctl_args /* {
  66                 syscallarg(int) semid;
  67                 syscallarg(int) semnum;
  68                 syscallarg(int) cmd;
  69                 syscallarg(union __semun *) arg;
  70         } */ __semctl_args;
  71         struct sys_semget_args /* {
  72                 syscallarg(key_t) key;
  73                 syscallarg(int) nsems;
  74                 syscallarg(int) semflg;
  75         } */ semget_args;
  76         struct sys_semop_args /* {
  77                 syscallarg(int) semid;
  78                 syscallarg(struct sembuf *) sops;
  79                 syscallarg(u_int) nsops;
  80         } */ semop_args;
  81         struct sys_semconfig_args /* {
  82                 syscallarg(int) flag;
  83         } */ semconfig_args;
  84
  85         switch (SCARG(uap, which)) {
  86         case 0:                                         /* __semctl() */
  87                 SCARG(&__semctl_args, semid) = SCARG(uap, a2);
  88                 SCARG(&__semctl_args, semnum) = SCARG(uap, a3);
  89                 SCARG(&__semctl_args, cmd) = SCARG(uap, a4);
  90                 SCARG(&__semctl_args, arg) = (union __semun *)SCARG(uap, a5);
  91                 return (compat_14_sys___semctl(l, &__semctl_args, retval));
  92
  93         case 1:                                         /* semget() */
  94                 SCARG(&semget_args, key) = SCARG(uap, a2);
  95                 SCARG(&semget_args, nsems) = SCARG(uap, a3);
  96                 SCARG(&semget_args, semflg) = SCARG(uap, a4);
  97                 return (sys_semget(l, &semget_args, retval));
  98
  99         case 2:                                         /* semop() */
 100                 SCARG(&semop_args, semid) = SCARG(uap, a2);
 101                 SCARG(&semop_args, sops) = (struct sembuf *)SCARG(uap, a3);
 102                 SCARG(&semop_args, nsops) = SCARG(uap, a4);
 103                 return (sys_semop(l, &semop_args, retval));
 104
 105         case 3:                                         /* semconfig() */
 106                 SCARG(&semconfig_args, flag) = SCARG(uap, a2);
 107                 return (sys_semconfig(l, &semconfig_args, retval));
 108
 109         default:
 110                 return (EINVAL);
 111         }
 112 }
 113 #endif
 114
 115 #ifdef SYSVSHM
 116 int
 117 freebsd_sys_shmsys(struct lwp *l, const struct freebsd_sys_shmsys_args *uap, register_t *retval)
 118 {
 119         /* {
 120                 syscallarg(int) which;
 121                 syscallarg(int) a2;
 122                 syscallarg(int) a3;
 123                 syscallarg(int) a4;
 124         } */
 125         struct sys_shmat_args /* {
 126                 syscallarg(int) shmid;
 127                 syscallarg(void *) shmaddr;
 128                 syscallarg(int) shmflg;
 129         } */ shmat_args;
 130         struct compat_14_sys_shmctl_args /* {
 131                 syscallarg(int) shmid;
 132                 syscallarg(int) cmd;
 133                 syscallarg(struct shmid_ds14 *) buf;
 134         } */ shmctl_args;
 135         struct sys_shmdt_args /* {
 136                 syscallarg(void *) shmaddr;
 137         } */ shmdt_args;
 138         struct sys_shmget_args /* {
 139                 syscallarg(key_t) key;
 140                 syscallarg(int) size;
 141                 syscallarg(int) shmflg;
 142         } */ shmget_args;
 143
 144         switch (SCARG(uap, which)) {
 145         case 0:                                         /* shmat() */
 146                 SCARG(&shmat_args, shmid) = SCARG(uap, a2);
 147                 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3);
 148                 SCARG(&shmat_args, shmflg) = SCARG(uap, a4);
 149                 return (sys_shmat(l, &shmat_args, retval));
 150
 151         case 1:                                         /* oshmctl() */
 152                 /* XXX Need to translate shmid_ds format. */
 153                 return (EINVAL);
 154
 155         case 2:                                         /* shmdt() */
 156                 SCARG(&shmdt_args, shmaddr) = (void *)SCARG(uap, a2);
 157                 return (sys_shmdt(l, &shmdt_args, retval));
 158
 159         case 3:                                         /* shmget() */
 160                 SCARG(&shmget_args, key) = SCARG(uap, a2);
 161                 SCARG(&shmget_args, size) = SCARG(uap, a3);
 162                 SCARG(&shmget_args, shmflg) = SCARG(uap, a4);
 163                 return (sys_shmget(l, &shmget_args, retval));
 164
 165         case 4:                                         /* shmctl() */
 166                 SCARG(&shmctl_args, shmid) = SCARG(uap, a2);
 167                 SCARG(&shmctl_args, cmd) = SCARG(uap, a3);
 168                 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4);
 169                 return (compat_14_sys_shmctl(l, &shmctl_args, retval));
 170
 171         default:
 172                 return (EINVAL);
 173         }
 174 }
 175 #endif
 176
 177 #ifdef SYSVMSG
 178 int
 179 freebsd_sys_msgsys(struct lwp *l, const struct freebsd_sys_msgsys_args *uap, register_t *retval)
 180 {
 181         /* {
 182                 syscallarg(int) which;
 183                 syscallarg(int) a2;
 184                 syscallarg(int) a3;
 185                 syscallarg(int) a4;
 186                 syscallarg(int) a5;
 187                 syscallarg(int) a6;
 188         } */
 189         struct compat_14_sys_msgctl_args /* {
 190                 syscallarg(int) msqid;
 191                 syscallarg(int) cmd;
 192                 syscallarg(struct msqid_ds14 *) buf;
 193         } */ msgctl_args;
 194         struct sys_msgget_args /* {
 195                 syscallarg(key_t) key;
 196                 syscallarg(int) msgflg;
 197         } */ msgget_args;
 198         struct sys_msgsnd_args /* {
 199                 syscallarg(int) msqid;
 200                 syscallarg(void *) msgp;
 201                 syscallarg(size_t) msgsz;
 202                 syscallarg(int) msgflg;
 203         } */ msgsnd_args;
 204         struct sys_msgrcv_args /* {
 205                 syscallarg(int) msqid;
 206                 syscallarg(void *) msgp;
 207                 syscallarg(size_t) msgsz;
 208                 syscallarg(long) msgtyp;
 209                 syscallarg(int) msgflg;
 210         } */ msgrcv_args;
 211
 212         switch (SCARG(uap, which)) {
 213         case 0:                                 /* msgctl()*/
 214                 SCARG(&msgctl_args, msqid) = SCARG(uap, a2);
 215                 SCARG(&msgctl_args, cmd) = SCARG(uap, a3);
 216                 SCARG(&msgctl_args, buf) =
 217                     (struct msqid_ds14 *)SCARG(uap, a4);
 218                 return (compat_14_sys_msgctl(l, &msgctl_args, retval));
 219
 220         case 1:                                 /* msgget() */
 221                 SCARG(&msgget_args, key) = SCARG(uap, a2);
 222                 SCARG(&msgget_args, msgflg) = SCARG(uap, a3);
 223                 return (sys_msgget(l, &msgget_args, retval));
 224
 225         case 2:                                 /* msgsnd() */
 226                 SCARG(&msgsnd_args, msqid) = SCARG(uap, a2);
 227                 SCARG(&msgsnd_args, msgp) = (void *)SCARG(uap, a3);
 228                 SCARG(&msgsnd_args, msgsz) = SCARG(uap, a4);
 229                 SCARG(&msgsnd_args, msgflg) = SCARG(uap, a5);
 230                 return (sys_msgsnd(l, &msgsnd_args, retval));
 231
 232         case 3:                                 /* msgrcv() */
 233                 SCARG(&msgrcv_args, msqid) = SCARG(uap, a2);
 234                 SCARG(&msgrcv_args, msgp) = (void *)SCARG(uap, a3);
 235                 SCARG(&msgrcv_args, msgsz) = SCARG(uap, a4);
 236                 SCARG(&msgrcv_args, msgtyp) = SCARG(uap, a5);
 237                 SCARG(&msgrcv_args, msgflg) = SCARG(uap, a6);
 238                 return (sys_msgrcv(l, &msgrcv_args, retval));
 239
 240         default:
 241                 return (EINVAL);
 242         }
 243 }
 244 #endif