sys/compat/common/kern_ipc_10.c

   1 /*      $NetBSD: kern_ipc_10.c,v 1.23.8.3 2008/11/20 20:45:38 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: kern_ipc_10.c,v 1.23.8.3 2008/11/20 20:45:38 christos Exp $");
  35
  36 #ifdef _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
  47 #include <sys/mount.h>
  48 #include <sys/syscallargs.h>
  49
  50 #include <compat/common/compat_util.h>
  51 #include <compat/sys/shm.h>
  52 #include <compat/sys/sem.h>
  53
  54 #if defined(SYSVSEM) && !defined(_LP64)
  55 int
  56 compat_10_sys_semsys(struct lwp *l, const struct compat_10_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 sys_semget_args /* {
  66                 syscallarg(key_t) key;
  67                 syscallarg(int) nsems;
  68                 syscallarg(int) semflg;
  69         } */ semget_args;
  70         struct sys_semop_args /* {
  71                 syscallarg(int) semid;
  72                 syscallarg(struct sembuf *) sops;
  73                 syscallarg(u_int) nsops;
  74         } */ semop_args;
  75         struct sys_semconfig_args /* {
  76                 syscallarg(int) flag;
  77         } */ semconfig_args;
  78         struct semid_ds sembuf;
  79         struct semid_ds14 osembuf;
  80         void *pass_arg;
  81         int a5 = SCARG(uap, a5);
  82         int error;
  83
  84         switch (SCARG(uap, which)) {
  85         case 0:                                         /* __semctl() */
  86 #define semctl_semid    SCARG(uap, a2)
  87 #define semctl_semnum   SCARG(uap, a3)
  88 #define semctl_cmd      SCARG(uap, a4)
  89 #define semctl_arg      ((union __semun *)&a5)
  90                 pass_arg = get_semctl_arg(semctl_cmd, &sembuf, semctl_arg);
  91                 if (semctl_cmd == IPC_SET) {
  92                         error = copyin(semctl_arg->buf, &osembuf, sizeof osembuf);
  93                         if (error != 0)
  94                                 return error;
  95                         __semid_ds14_to_native(&osembuf, &sembuf);
  96                 }
  97                 error = semctl1(l, semctl_semid, semctl_semnum, semctl_cmd,
  98                     pass_arg, retval);
  99                 if (error == 0 && semctl_cmd == IPC_STAT) {
 100                         __native_to_semid_ds14(&sembuf, &osembuf);
 101                         error = copyout(&osembuf, semctl_arg->buf, sizeof(osembuf));
 102                 }
 103                 return error;
 104 #undef  semctl_semid
 105 #undef  semctl_semnum
 106 #undef  semctl_cmd
 107 #undef  semctl_arg
 108
 109         case 1:                                         /* semget() */
 110                 SCARG(&semget_args, key) = SCARG(uap, a2);
 111                 SCARG(&semget_args, nsems) = SCARG(uap, a3);
 112                 SCARG(&semget_args, semflg) = SCARG(uap, a4);
 113                 return (sys_semget(l, &semget_args, retval));
 114
 115         case 2:                                         /* semop() */
 116                 SCARG(&semop_args, semid) = SCARG(uap, a2);
 117                 SCARG(&semop_args, sops) =
 118                     (struct sembuf *)(u_long)SCARG(uap, a3);
 119                 SCARG(&semop_args, nsops) = SCARG(uap, a4);
 120                 return (sys_semop(l, &semop_args, retval));
 121
 122         case 3:                                         /* semconfig() */
 123                 SCARG(&semconfig_args, flag) = SCARG(uap, a2);
 124                 return (sys_semconfig(l, &semconfig_args, retval));
 125
 126         default:
 127                 return (EINVAL);
 128         }
 129 }
 130 #endif
 131
 132 #if defined(SYSVSHM) && !defined(_LP64)
 133 int
 134 compat_10_sys_shmsys(struct lwp *l, const struct compat_10_sys_shmsys_args *uap, register_t *retval)
 135 {
 136         /* {
 137                 syscallarg(int) which;
 138                 syscallarg(int) a2;
 139                 syscallarg(int) a3;
 140                 syscallarg(int) a4;
 141         } */
 142         struct sys_shmat_args /* {
 143                 syscallarg(int) shmid;
 144                 syscallarg(void *) shmaddr;
 145                 syscallarg(int) shmflg;
 146         } */ shmat_args;
 147         struct compat_14_sys_shmctl_args /* {
 148                 syscallarg(int) shmid;
 149                 syscallarg(int) cmd;
 150                 syscallarg(struct shmid14_ds *) buf;
 151         } */ shmctl_args;
 152         struct sys_shmdt_args /* {
 153                 syscallarg(void *) shmaddr;
 154         } */ shmdt_args;
 155         struct sys_shmget_args /* {
 156                 syscallarg(key_t) key;
 157                 syscallarg(int) size;
 158                 syscallarg(int) shmflg;
 159         } */ shmget_args;
 160
 161         switch (SCARG(uap, which)) {
 162         case 0:                                         /* shmat() */
 163                 SCARG(&shmat_args, shmid) = SCARG(uap, a2);
 164                 SCARG(&shmat_args, shmaddr) =
 165                     (void *)(u_long)SCARG(uap, a3);
 166                 SCARG(&shmat_args, shmflg) = SCARG(uap, a4);
 167                 return (sys_shmat(l, &shmat_args, retval));
 168
 169         case 1:                                         /* shmctl() */
 170                 SCARG(&shmctl_args, shmid) = SCARG(uap, a2);
 171                 SCARG(&shmctl_args, cmd) = SCARG(uap, a3);
 172                 SCARG(&shmctl_args, buf) =
 173                     (struct shmid_ds14 *)(u_long)SCARG(uap, a4);
 174                 return (compat_14_sys_shmctl(l, &shmctl_args, retval));
 175
 176         case 2:                                         /* shmdt() */
 177                 SCARG(&shmdt_args, shmaddr) =
 178                     (void *)(u_long)SCARG(uap, a2);
 179                 return (sys_shmdt(l, &shmdt_args, retval));
 180
 181         case 3:                                         /* shmget() */
 182                 SCARG(&shmget_args, key) = SCARG(uap, a2);
 183                 SCARG(&shmget_args, size) = SCARG(uap, a3);
 184                 SCARG(&shmget_args, shmflg) = SCARG(uap, a4);
 185                 return (sys_shmget(l, &shmget_args, retval));
 186
 187         default:
 188                 return (EINVAL);
 189         }
 190 }
 191 #endif
 192
 193 #if defined(SYSVMSG) && !defined(_LP64)
 194 int
 195 compat_10_sys_msgsys(struct lwp *l, const struct compat_10_sys_msgsys_args *uap, register_t *retval)
 196 {
 197         /* {
 198                 syscallarg(int) which;
 199                 syscallarg(int) a2;
 200                 syscallarg(int) a3;
 201                 syscallarg(int) a4;
 202                 syscallarg(int) a5;
 203                 syscallarg(int) a6;
 204         } */
 205         struct compat_14_sys_msgctl_args /* {
 206                 syscallarg(int) msqid;
 207                 syscallarg(int) cmd;
 208                 syscallarg(struct msqid14_ds *) buf;
 209         } */ msgctl_args;
 210         struct sys_msgget_args /* {
 211                 syscallarg(key_t) key;
 212                 syscallarg(int) msgflg;
 213         } */ msgget_args;
 214         struct sys_msgsnd_args /* {
 215                 syscallarg(int) msqid;
 216                 syscallarg(void *) msgp;
 217                 syscallarg(size_t) msgsz;
 218                 syscallarg(int) msgflg;
 219         } */ msgsnd_args;
 220         struct sys_msgrcv_args /* {
 221                 syscallarg(int) msqid;
 222                 syscallarg(void *) msgp;
 223                 syscallarg(size_t) msgsz;
 224                 syscallarg(long) msgtyp;
 225                 syscallarg(int) msgflg;
 226         } */ msgrcv_args;
 227
 228         switch (SCARG(uap, which)) {
 229         case 0:                                 /* msgctl()*/
 230                 SCARG(&msgctl_args, msqid) = SCARG(uap, a2);
 231                 SCARG(&msgctl_args, cmd) = SCARG(uap, a3);
 232                 SCARG(&msgctl_args, buf) =
 233                     (struct msqid_ds14 *)(u_long)SCARG(uap, a4);
 234                 return (compat_14_sys_msgctl(l, &msgctl_args, retval));
 235
 236         case 1:                                 /* msgget() */
 237                 SCARG(&msgget_args, key) = SCARG(uap, a2);
 238                 SCARG(&msgget_args, msgflg) = SCARG(uap, a3);
 239                 return (sys_msgget(l, &msgget_args, retval));
 240
 241         case 2:                                 /* msgsnd() */
 242                 SCARG(&msgsnd_args, msqid) = SCARG(uap, a2);
 243                 SCARG(&msgsnd_args, msgp) =
 244                     (void *)(u_long)SCARG(uap, a3);
 245                 SCARG(&msgsnd_args, msgsz) = SCARG(uap, a4);
 246                 SCARG(&msgsnd_args, msgflg) = SCARG(uap, a5);
 247                 return (sys_msgsnd(l, &msgsnd_args, retval));
 248
 249         case 3:                                 /* msgrcv() */
 250                 SCARG(&msgrcv_args, msqid) = SCARG(uap, a2);
 251                 SCARG(&msgrcv_args, msgp) =
 252                     (void *)(u_long)SCARG(uap, a3);
 253                 SCARG(&msgrcv_args, msgsz) = SCARG(uap, a4);
 254                 SCARG(&msgrcv_args, msgtyp) = SCARG(uap, a5);
 255                 SCARG(&msgrcv_args, msgflg) = SCARG(uap, a6);
 256                 return (sys_msgrcv(l, &msgrcv_args, retval));
 257
 258         default:
 259                 return (EINVAL);
 260         }
 261 }
 262 #endif