408 lines
10 KiB
C
408 lines
10 KiB
C
/*
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* Copyright (c) 1995 Scott Bartram
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* Copyright (c) 1995 Steven Wallace
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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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* 2. 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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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/msg.h>
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#include <sys/sem.h>
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#include <sys/shm.h>
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#include <sys/sysproto.h>
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#include <i386/ibcs2/ibcs2_types.h>
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#include <i386/ibcs2/ibcs2_signal.h>
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#include <i386/ibcs2/ibcs2_proto.h>
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#include <i386/ibcs2/ibcs2_util.h>
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#include <i386/ibcs2/ibcs2_ipc.h>
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#define IBCS2_IPC_RMID 0
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#define IBCS2_IPC_SET 1
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#define IBCS2_IPC_STAT 2
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#define IBCS2_SETVAL 8
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static void cvt_msqid2imsqid(struct msqid_ds *, struct ibcs2_msqid_ds *);
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static void cvt_imsqid2msqid(struct ibcs2_msqid_ds *, struct msqid_ds *);
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#ifdef unused
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static void cvt_sem2isem(struct sem *, struct ibcs2_sem *);
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static void cvt_isem2sem(struct ibcs2_sem *, struct sem *);
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#endif
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static void cvt_semid2isemid(struct semid_ds *, struct ibcs2_semid_ds *);
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static void cvt_isemid2semid(struct ibcs2_semid_ds *, struct semid_ds *);
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static void cvt_shmid2ishmid(struct shmid_ds *, struct ibcs2_shmid_ds *);
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static void cvt_ishmid2shmid(struct ibcs2_shmid_ds *, struct shmid_ds *);
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static void cvt_perm2iperm(struct ipc_perm *, struct ibcs2_ipc_perm *);
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static void cvt_iperm2perm(struct ibcs2_ipc_perm *, struct ipc_perm *);
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/*
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* iBCS2 msgsys call
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*/
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static void
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cvt_msqid2imsqid(bp, ibp)
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struct msqid_ds *bp;
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struct ibcs2_msqid_ds *ibp;
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{
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cvt_perm2iperm(&bp->msg_perm, &ibp->msg_perm);
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ibp->msg_first = bp->msg_first;
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ibp->msg_last = bp->msg_last;
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ibp->msg_cbytes = (u_short)bp->msg_cbytes;
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ibp->msg_qnum = (u_short)bp->msg_qnum;
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ibp->msg_qbytes = (u_short)bp->msg_qbytes;
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ibp->msg_lspid = (u_short)bp->msg_lspid;
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ibp->msg_lrpid = (u_short)bp->msg_lrpid;
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ibp->msg_stime = bp->msg_stime;
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ibp->msg_rtime = bp->msg_rtime;
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ibp->msg_ctime = bp->msg_ctime;
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return;
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}
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static void
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cvt_imsqid2msqid(ibp, bp)
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struct ibcs2_msqid_ds *ibp;
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struct msqid_ds *bp;
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{
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cvt_iperm2perm(&ibp->msg_perm, &bp->msg_perm);
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bp->msg_first = ibp->msg_first;
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bp->msg_last = ibp->msg_last;
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bp->msg_cbytes = ibp->msg_cbytes;
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bp->msg_qnum = ibp->msg_qnum;
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bp->msg_qbytes = ibp->msg_qbytes;
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bp->msg_lspid = ibp->msg_lspid;
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bp->msg_lrpid = ibp->msg_lrpid;
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bp->msg_stime = ibp->msg_stime;
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bp->msg_rtime = ibp->msg_rtime;
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bp->msg_ctime = ibp->msg_ctime;
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return;
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}
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int
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ibcs2_msgsys(td, uap)
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struct thread *td;
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struct ibcs2_msgsys_args *uap;
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{
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switch (SCARG(uap, which)) {
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case 0: /* msgget */
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SCARG(uap, which) = 1;
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return msgsys(td, (struct msgsys_args *)uap);
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case 1: { /* msgctl */
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int error;
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struct msgsys_args margs;
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caddr_t sg = stackgap_init();
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SCARG(&margs, which) = 0;
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SCARG(&margs, a2) = SCARG(uap, a2);
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SCARG(&margs, a4) =
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(int)stackgap_alloc(&sg, sizeof(struct msqid_ds));
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SCARG(&margs, a3) = SCARG(uap, a3);
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switch (SCARG(&margs, a3)) {
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case IBCS2_IPC_STAT:
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error = msgsys(td, &margs);
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if (!error)
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cvt_msqid2imsqid(
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(struct msqid_ds *)SCARG(&margs, a4),
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(struct ibcs2_msqid_ds *)SCARG(uap, a4));
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return error;
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case IBCS2_IPC_SET:
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cvt_imsqid2msqid((struct ibcs2_msqid_ds *)SCARG(uap,
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a4),
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(struct msqid_ds *)SCARG(&margs, a4));
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return msgsys(td, &margs);
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case IBCS2_IPC_RMID:
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return msgsys(td, &margs);
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}
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return EINVAL;
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}
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case 2: /* msgrcv */
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SCARG(uap, which) = 3;
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return msgsys(td, (struct msgsys_args *)uap);
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case 3: /* msgsnd */
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SCARG(uap, which) = 2;
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return msgsys(td, (struct msgsys_args *)uap);
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default:
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return EINVAL;
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}
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}
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/*
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* iBCS2 semsys call
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*/
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#ifdef unused
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static void
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cvt_sem2isem(bp, ibp)
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struct sem *bp;
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struct ibcs2_sem *ibp;
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{
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ibp->semval = bp->semval;
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ibp->sempid = bp->sempid;
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ibp->semncnt = bp->semncnt;
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ibp->semzcnt = bp->semzcnt;
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return;
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}
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static void
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cvt_isem2sem(ibp, bp)
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struct ibcs2_sem *ibp;
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struct sem *bp;
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{
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bp->semval = ibp->semval;
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bp->sempid = ibp->sempid;
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bp->semncnt = ibp->semncnt;
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bp->semzcnt = ibp->semzcnt;
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return;
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}
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#endif
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static void
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cvt_iperm2perm(ipp, pp)
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struct ibcs2_ipc_perm *ipp;
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struct ipc_perm *pp;
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{
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pp->uid = ipp->uid;
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pp->gid = ipp->gid;
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pp->cuid = ipp->cuid;
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pp->cgid = ipp->cgid;
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pp->mode = ipp->mode;
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pp->seq = ipp->seq;
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pp->key = ipp->key;
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}
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static void
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cvt_perm2iperm(pp, ipp)
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struct ipc_perm *pp;
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struct ibcs2_ipc_perm *ipp;
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{
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ipp->uid = pp->uid;
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ipp->gid = pp->gid;
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ipp->cuid = pp->cuid;
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ipp->cgid = pp->cgid;
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ipp->mode = pp->mode;
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ipp->seq = pp->seq;
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ipp->key = pp->key;
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}
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static void
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cvt_semid2isemid(bp, ibp)
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struct semid_ds *bp;
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struct ibcs2_semid_ds *ibp;
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{
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cvt_perm2iperm(&bp->sem_perm, &ibp->sem_perm);
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ibp->sem_base = (struct ibcs2_sem *)bp->sem_base;
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ibp->sem_nsems = bp->sem_nsems;
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ibp->sem_otime = bp->sem_otime;
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ibp->sem_ctime = bp->sem_ctime;
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return;
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}
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static void
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cvt_isemid2semid(ibp, bp)
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struct ibcs2_semid_ds *ibp;
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struct semid_ds *bp;
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{
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cvt_iperm2perm(&ibp->sem_perm, &bp->sem_perm);
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bp->sem_base = (struct sem *)ibp->sem_base;
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bp->sem_nsems = ibp->sem_nsems;
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bp->sem_otime = ibp->sem_otime;
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bp->sem_ctime = ibp->sem_ctime;
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return;
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}
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int
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ibcs2_semsys(td, uap)
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struct thread *td;
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struct ibcs2_semsys_args *uap;
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{
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int error;
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switch (SCARG(uap, which)) {
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case 0: /* semctl */
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switch(SCARG(uap, a4)) {
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case IBCS2_IPC_STAT:
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{
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struct ibcs2_semid_ds *isp;
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struct semid_ds *sp;
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union semun *sup, ssu;
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caddr_t sg = stackgap_init();
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ssu = (union semun) SCARG(uap, a5);
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sp = stackgap_alloc(&sg, sizeof(struct semid_ds));
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sup = stackgap_alloc(&sg, sizeof(union semun));
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sup->buf = sp;
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SCARG(uap, a5) = (int)sup;
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error = semsys(td, (struct semsys_args *)uap);
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if (!error) {
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SCARG(uap, a5) = (int)ssu.buf;
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isp = stackgap_alloc(&sg, sizeof(*isp));
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cvt_semid2isemid(sp, isp);
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error = copyout((caddr_t)isp,
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(caddr_t)ssu.buf,
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sizeof(*isp));
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}
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return error;
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}
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case IBCS2_IPC_SET:
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{
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struct ibcs2_semid_ds *isp;
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struct semid_ds *sp;
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caddr_t sg = stackgap_init();
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isp = stackgap_alloc(&sg, sizeof(*isp));
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sp = stackgap_alloc(&sg, sizeof(*sp));
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error = copyin((caddr_t)SCARG(uap, a5), (caddr_t)isp,
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sizeof(*isp));
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if (error)
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return error;
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cvt_isemid2semid(isp, sp);
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SCARG(uap, a5) = (int)sp;
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return semsys(td, (struct semsys_args *)uap);
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}
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case IBCS2_SETVAL:
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{
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union semun *sp;
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caddr_t sg = stackgap_init();
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sp = stackgap_alloc(&sg, sizeof(*sp));
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sp->val = (int) SCARG(uap, a5);
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SCARG(uap, a5) = (int)sp;
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return semsys(td, (struct semsys_args *)uap);
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}
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}
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return semsys(td, (struct semsys_args *)uap);
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case 1: /* semget */
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return semsys(td, (struct semsys_args *)uap);
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case 2: /* semop */
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return semsys(td, (struct semsys_args *)uap);
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}
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return EINVAL;
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}
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/*
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* iBCS2 shmsys call
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*/
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static void
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cvt_shmid2ishmid(bp, ibp)
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struct shmid_ds *bp;
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struct ibcs2_shmid_ds *ibp;
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{
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cvt_perm2iperm(&bp->shm_perm, &ibp->shm_perm);
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ibp->shm_segsz = bp->shm_segsz;
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ibp->shm_lpid = bp->shm_lpid;
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ibp->shm_cpid = bp->shm_cpid;
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ibp->shm_nattch = bp->shm_nattch;
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ibp->shm_cnattch = 0; /* ignored anyway */
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ibp->shm_atime = bp->shm_atime;
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ibp->shm_dtime = bp->shm_dtime;
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ibp->shm_ctime = bp->shm_ctime;
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return;
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}
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static void
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cvt_ishmid2shmid(ibp, bp)
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struct ibcs2_shmid_ds *ibp;
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struct shmid_ds *bp;
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{
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cvt_iperm2perm(&ibp->shm_perm, &bp->shm_perm);
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bp->shm_segsz = ibp->shm_segsz;
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bp->shm_lpid = ibp->shm_lpid;
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bp->shm_cpid = ibp->shm_cpid;
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bp->shm_nattch = ibp->shm_nattch;
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bp->shm_atime = ibp->shm_atime;
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bp->shm_dtime = ibp->shm_dtime;
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bp->shm_ctime = ibp->shm_ctime;
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bp->shm_internal = (void *)0; /* ignored anyway */
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return;
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}
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int
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ibcs2_shmsys(td, uap)
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struct thread *td;
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struct ibcs2_shmsys_args *uap;
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{
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int error;
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switch (SCARG(uap, which)) {
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case 0: /* shmat */
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return shmsys(td, (struct shmsys_args *)uap);
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case 1: /* shmctl */
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switch(SCARG(uap, a3)) {
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case IBCS2_IPC_STAT:
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{
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struct ibcs2_shmid_ds *isp;
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struct shmid_ds *sp;
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caddr_t sg = stackgap_init();
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isp = (struct ibcs2_shmid_ds *)SCARG(uap, a4);
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sp = stackgap_alloc(&sg, sizeof(*sp));
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SCARG(uap, a4) = (int)sp;
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error = shmsys(td, (struct shmsys_args *)uap);
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if (!error) {
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SCARG(uap, a4) = (int)isp;
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isp = stackgap_alloc(&sg, sizeof(*isp));
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cvt_shmid2ishmid(sp, isp);
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error = copyout((caddr_t)isp,
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(caddr_t)SCARG(uap, a4),
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sizeof(*isp));
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}
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return error;
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}
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case IBCS2_IPC_SET:
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{
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struct ibcs2_shmid_ds *isp;
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struct shmid_ds *sp;
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caddr_t sg = stackgap_init();
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isp = stackgap_alloc(&sg, sizeof(*isp));
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sp = stackgap_alloc(&sg, sizeof(*sp));
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error = copyin((caddr_t)SCARG(uap, a4), (caddr_t)isp,
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sizeof(*isp));
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if (error)
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return error;
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cvt_ishmid2shmid(isp, sp);
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SCARG(uap, a4) = (int)sp;
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return shmsys(td, (struct shmsys_args *)uap);
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}
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}
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return shmsys(td, (struct shmsys_args *)uap);
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case 2: /* shmdt */
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return shmsys(td, (struct shmsys_args *)uap);
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case 3: /* shmget */
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return shmsys(td, (struct shmsys_args *)uap);
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}
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return EINVAL;
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}
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