kern_ipc_10.c

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    1 /*      $NetBSD: kern_ipc_10.c,v 1.23 2007/12/20 23:02:44 dsl 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 2007/12/20 23:02:44 dsl Exp $");
   35 
   36 #include "opt_sysv.h"
   37 
   38 #include <sys/param.h>
   39 #include <sys/systm.h>
   40 #include <sys/kernel.h>
   41 #include <sys/proc.h>
   42 #include <sys/sem.h>
   43 
   44 #include <sys/mount.h>
   45 #include <sys/syscallargs.h>
   46 
   47 #include <compat/common/compat_util.h>
   48 #include <compat/sys/shm.h>
   49 #include <compat/sys/sem.h>
   50 
   51 #if defined(SYSVSEM) && !defined(_LP64)
   52 int
   53 compat_10_sys_semsys(struct lwp *l, const struct compat_10_sys_semsys_args *uap, register_t *retval)
   54 {
   55         /* {
   56                 syscallarg(int) which;
   57                 syscallarg(int) a2;
   58                 syscallarg(int) a3;
   59                 syscallarg(int) a4;
   60                 syscallarg(int) a5;
   61         } */
   62         struct sys_semget_args /* {
   63                 syscallarg(key_t) key;
   64                 syscallarg(int) nsems;
   65                 syscallarg(int) semflg;
   66         } */ semget_args;
   67         struct sys_semop_args /* {
   68                 syscallarg(int) semid;
   69                 syscallarg(struct sembuf *) sops;
   70                 syscallarg(u_int) nsops;
   71         } */ semop_args;
   72         struct sys_semconfig_args /* {
   73                 syscallarg(int) flag;
   74         } */ semconfig_args;
   75         struct semid_ds sembuf;
   76         struct semid_ds14 osembuf;
   77         void *pass_arg;
   78         int a5 = SCARG(uap, a5);
   79         int error;
   80 
   81         switch (SCARG(uap, which)) {
   82         case 0:                                         /* __semctl() */
   83 #define semctl_semid    SCARG(uap, a2)
   84 #define semctl_semnum   SCARG(uap, a3)
   85 #define semctl_cmd      SCARG(uap, a4)
   86 #define semctl_arg      ((union __semun *)&a5)
   87                 pass_arg = get_semctl_arg(semctl_cmd, &sembuf, semctl_arg);
   88                 if (semctl_cmd == IPC_SET) {
   89                         error = copyin(semctl_arg->buf, &osembuf, sizeof osembuf);
   90                         if (error != 0)
   91                                 return error;
   92                         semid_ds14_to_native(&osembuf, &sembuf);
   93                 }
   94                 error = semctl1(l, semctl_semid, semctl_semnum, semctl_cmd, 
   95                     pass_arg, retval);
   96                 if (error == 0 && semctl_cmd == IPC_STAT) {
   97                         native_to_semid_ds14(&sembuf, &osembuf);
   98                         error = copyout(&osembuf, semctl_arg->buf, sizeof(osembuf));
   99                 }
  100                 return error;
  101 #undef  semctl_semid
  102 #undef  semctl_semnum
  103 #undef  semctl_cmd
  104 #undef  semctl_arg
  105 
  106         case 1:                                         /* semget() */
  107                 SCARG(&semget_args, key) = SCARG(uap, a2);
  108                 SCARG(&semget_args, nsems) = SCARG(uap, a3);
  109                 SCARG(&semget_args, semflg) = SCARG(uap, a4);
  110                 return (sys_semget(l, &semget_args, retval));
  111 
  112         case 2:                                         /* semop() */
  113                 SCARG(&semop_args, semid) = SCARG(uap, a2);
  114                 SCARG(&semop_args, sops) =
  115                     (struct sembuf *)(u_long)SCARG(uap, a3);
  116                 SCARG(&semop_args, nsops) = SCARG(uap, a4);
  117                 return (sys_semop(l, &semop_args, retval));
  118 
  119         case 3:                                         /* semconfig() */
  120                 SCARG(&semconfig_args, flag) = SCARG(uap, a2);
  121                 return (sys_semconfig(l, &semconfig_args, retval));
  122 
  123         default:
  124                 return (EINVAL);
  125         }
  126 }
  127 #endif
  128 
  129 #if defined(SYSVSHM) && !defined(_LP64)
  130 int
  131 compat_10_sys_shmsys(struct lwp *l, const struct compat_10_sys_shmsys_args *uap, register_t *retval)
  132 {
  133         /* {
  134                 syscallarg(int) which;
  135                 syscallarg(int) a2;
  136                 syscallarg(int) a3;
  137                 syscallarg(int) a4;
  138         } */
  139         struct sys_shmat_args /* {
  140                 syscallarg(int) shmid;
  141                 syscallarg(void *) shmaddr;
  142                 syscallarg(int) shmflg;
  143         } */ shmat_args;
  144         struct compat_14_sys_shmctl_args /* {
  145                 syscallarg(int) shmid;
  146                 syscallarg(int) cmd;
  147                 syscallarg(struct shmid14_ds *) buf;
  148         } */ shmctl_args;
  149         struct sys_shmdt_args /* {
  150                 syscallarg(void *) shmaddr;
  151         } */ shmdt_args;
  152         struct sys_shmget_args /* {
  153                 syscallarg(key_t) key;
  154                 syscallarg(int) size;
  155                 syscallarg(int) shmflg;
  156         } */ shmget_args;
  157 
  158         switch (SCARG(uap, which)) {
  159         case 0:                                         /* shmat() */
  160                 SCARG(&shmat_args, shmid) = SCARG(uap, a2);
  161                 SCARG(&shmat_args, shmaddr) =
  162                     (void *)(u_long)SCARG(uap, a3);
  163                 SCARG(&shmat_args, shmflg) = SCARG(uap, a4);
  164                 return (sys_shmat(l, &shmat_args, retval));
  165 
  166         case 1:                                         /* shmctl() */
  167                 SCARG(&shmctl_args, shmid) = SCARG(uap, a2);
  168                 SCARG(&shmctl_args, cmd) = SCARG(uap, a3);
  169                 SCARG(&shmctl_args, buf) =
  170                     (struct shmid_ds14 *)(u_long)SCARG(uap, a4);
  171                 return (compat_14_sys_shmctl(l, &shmctl_args, retval));
  172 
  173         case 2:                                         /* shmdt() */
  174                 SCARG(&shmdt_args, shmaddr) =
  175                     (void *)(u_long)SCARG(uap, a2);
  176                 return (sys_shmdt(l, &shmdt_args, retval));
  177 
  178         case 3:                                         /* shmget() */
  179                 SCARG(&shmget_args, key) = SCARG(uap, a2);
  180                 SCARG(&shmget_args, size) = SCARG(uap, a3);
  181                 SCARG(&shmget_args, shmflg) = SCARG(uap, a4);
  182                 return (sys_shmget(l, &shmget_args, retval));
  183 
  184         default:
  185                 return (EINVAL);
  186         }
  187 }
  188 #endif
  189 
  190 #if defined(SYSVMSG) && !defined(_LP64)
  191 int
  192 compat_10_sys_msgsys(struct lwp *l, const struct compat_10_sys_msgsys_args *uap, register_t *retval)
  193 {
  194         /* {
  195                 syscallarg(int) which;
  196                 syscallarg(int) a2;
  197                 syscallarg(int) a3;
  198                 syscallarg(int) a4;
  199                 syscallarg(int) a5;
  200                 syscallarg(int) a6;
  201         } */
  202         struct compat_14_sys_msgctl_args /* {
  203                 syscallarg(int) msqid;
  204                 syscallarg(int) cmd;
  205                 syscallarg(struct msqid14_ds *) buf;
  206         } */ msgctl_args;
  207         struct sys_msgget_args /* {
  208                 syscallarg(key_t) key;
  209                 syscallarg(int) msgflg;
  210         } */ msgget_args;
  211         struct sys_msgsnd_args /* {
  212                 syscallarg(int) msqid;
  213                 syscallarg(void *) msgp;
  214                 syscallarg(size_t) msgsz;
  215                 syscallarg(int) msgflg;
  216         } */ msgsnd_args;
  217         struct sys_msgrcv_args /* {
  218                 syscallarg(int) msqid;
  219                 syscallarg(void *) msgp;
  220                 syscallarg(size_t) msgsz;
  221                 syscallarg(long) msgtyp;
  222                 syscallarg(int) msgflg;
  223         } */ msgrcv_args;
  224 
  225         switch (SCARG(uap, which)) {
  226         case 0:                                 /* msgctl()*/
  227                 SCARG(&msgctl_args, msqid) = SCARG(uap, a2);
  228                 SCARG(&msgctl_args, cmd) = SCARG(uap, a3);
  229                 SCARG(&msgctl_args, buf) =
  230                     (struct msqid_ds14 *)(u_long)SCARG(uap, a4);
  231                 return (compat_14_sys_msgctl(l, &msgctl_args, retval));
  232 
  233         case 1:                                 /* msgget() */
  234                 SCARG(&msgget_args, key) = SCARG(uap, a2);
  235                 SCARG(&msgget_args, msgflg) = SCARG(uap, a3);
  236                 return (sys_msgget(l, &msgget_args, retval));
  237 
  238         case 2:                                 /* msgsnd() */
  239                 SCARG(&msgsnd_args, msqid) = SCARG(uap, a2);
  240                 SCARG(&msgsnd_args, msgp) =
  241                     (void *)(u_long)SCARG(uap, a3);
  242                 SCARG(&msgsnd_args, msgsz) = SCARG(uap, a4);
  243                 SCARG(&msgsnd_args, msgflg) = SCARG(uap, a5);
  244                 return (sys_msgsnd(l, &msgsnd_args, retval));
  245 
  246         case 3:                                 /* msgrcv() */
  247                 SCARG(&msgrcv_args, msqid) = SCARG(uap, a2);
  248                 SCARG(&msgrcv_args, msgp) =
  249                     (void *)(u_long)SCARG(uap, a3);
  250                 SCARG(&msgrcv_args, msgsz) = SCARG(uap, a4);
  251                 SCARG(&msgrcv_args, msgtyp) = SCARG(uap, a5);
  252                 SCARG(&msgrcv_args, msgflg) = SCARG(uap, a6);
  253                 return (sys_msgrcv(l, &msgrcv_args, retval));
  254 
  255         default:
  256                 return (EINVAL);
  257         }
  258 }
  259 #endif
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FreeBSD/Linux Kernel Cross Reference sys/compat/common/kern_ipc_10.c

FreeBSD/Linux Kernel Cross Reference
sys/compat/common/kern_ipc_10.c
