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| Current File : //sys/amd64/compile/hs32/modules/usr/src/sys/modules/patm/@/i386/ibcs2/ibcs2_ipc.c |
/*-
* Copyright (c) 1995 Scott Bartram
* Copyright (c) 1995 Steven Wallace
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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>
__FBSDID("$FreeBSD: release/9.1.0/sys/i386/ibcs2/ibcs2_ipc.c 225617 2011-09-16 13:58:51Z kmacy $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/limits.h>
#include <sys/msg.h>
#include <sys/sem.h>
#include <sys/shm.h>
#include <sys/syscallsubr.h>
#include <sys/sysproto.h>
#include <i386/ibcs2/ibcs2_types.h>
#include <i386/ibcs2/ibcs2_signal.h>
#include <i386/ibcs2/ibcs2_proto.h>
#include <i386/ibcs2/ibcs2_util.h>
#include <i386/ibcs2/ibcs2_ipc.h>
#define IBCS2_IPC_RMID 0
#define IBCS2_IPC_SET 1
#define IBCS2_IPC_STAT 2
#define IBCS2_SETVAL 8
static void cvt_msqid2imsqid(struct msqid_ds *, struct ibcs2_msqid_ds *);
static void cvt_imsqid2msqid(struct ibcs2_msqid_ds *, struct msqid_ds *);
#ifdef unused
static void cvt_sem2isem(struct sem *, struct ibcs2_sem *);
static void cvt_isem2sem(struct ibcs2_sem *, struct sem *);
#endif
static void cvt_semid2isemid(struct semid_ds *, struct ibcs2_semid_ds *);
static void cvt_isemid2semid(struct ibcs2_semid_ds *, struct semid_ds *);
static void cvt_shmid2ishmid(struct shmid_ds *, struct ibcs2_shmid_ds *);
static void cvt_ishmid2shmid(struct ibcs2_shmid_ds *, struct shmid_ds *);
static void cvt_perm2iperm(struct ipc_perm *, struct ibcs2_ipc_perm *);
static void cvt_iperm2perm(struct ibcs2_ipc_perm *, struct ipc_perm *);
/*
* iBCS2 msgsys call
*/
static void
cvt_msqid2imsqid(bp, ibp)
struct msqid_ds *bp;
struct ibcs2_msqid_ds *ibp;
{
cvt_perm2iperm(&bp->msg_perm, &ibp->msg_perm);
ibp->msg_first = bp->msg_first;
ibp->msg_last = bp->msg_last;
ibp->msg_cbytes = (u_short)bp->msg_cbytes;
ibp->msg_qnum = (u_short)bp->msg_qnum;
ibp->msg_qbytes = (u_short)bp->msg_qbytes;
ibp->msg_lspid = (u_short)bp->msg_lspid;
ibp->msg_lrpid = (u_short)bp->msg_lrpid;
ibp->msg_stime = bp->msg_stime;
ibp->msg_rtime = bp->msg_rtime;
ibp->msg_ctime = bp->msg_ctime;
return;
}
static void
cvt_imsqid2msqid(ibp, bp)
struct ibcs2_msqid_ds *ibp;
struct msqid_ds *bp;
{
cvt_iperm2perm(&ibp->msg_perm, &bp->msg_perm);
bp->msg_first = ibp->msg_first;
bp->msg_last = ibp->msg_last;
bp->msg_cbytes = ibp->msg_cbytes;
bp->msg_qnum = ibp->msg_qnum;
bp->msg_qbytes = ibp->msg_qbytes;
bp->msg_lspid = ibp->msg_lspid;
bp->msg_lrpid = ibp->msg_lrpid;
bp->msg_stime = ibp->msg_stime;
bp->msg_rtime = ibp->msg_rtime;
bp->msg_ctime = ibp->msg_ctime;
return;
}
struct ibcs2_msgget_args {
int what;
ibcs2_key_t key;
int msgflg;
};
static int
ibcs2_msgget(struct thread *td, void *v)
{
struct ibcs2_msgget_args *uap = v;
struct msgget_args ap;
ap.key = uap->key;
ap.msgflg = uap->msgflg;
return sys_msgget(td, &ap);
}
struct ibcs2_msgctl_args {
int what;
int msqid;
int cmd;
struct ibcs2_msqid_ds *buf;
};
static int
ibcs2_msgctl(struct thread *td, void *v)
{
struct ibcs2_msgctl_args *uap = v;
struct ibcs2_msqid_ds is;
struct msqid_ds bs;
int error;
switch (uap->cmd) {
case IBCS2_IPC_STAT:
error = kern_msgctl(td, uap->msqid, IPC_STAT, &bs);
if (!error) {
cvt_msqid2imsqid(&bs, &is);
error = copyout(&is, uap->buf, sizeof(is));
}
return (error);
case IBCS2_IPC_SET:
error = copyin(uap->buf, &is, sizeof(is));
if (error)
return (error);
cvt_imsqid2msqid(&is, &bs);
return (kern_msgctl(td, uap->msqid, IPC_SET, &bs));
case IBCS2_IPC_RMID:
return (kern_msgctl(td, uap->msqid, IPC_RMID, NULL));
}
return (EINVAL);
}
struct ibcs2_msgrcv_args {
int what;
int msqid;
void *msgp;
size_t msgsz;
long msgtyp;
int msgflg;
};
static int
ibcs2_msgrcv(struct thread *td, void *v)
{
struct ibcs2_msgrcv_args *uap = v;
struct msgrcv_args ap;
ap.msqid = uap->msqid;
ap.msgp = uap->msgp;
ap.msgsz = uap->msgsz;
ap.msgtyp = uap->msgtyp;
ap.msgflg = uap->msgflg;
return (sys_msgrcv(td, &ap));
}
struct ibcs2_msgsnd_args {
int what;
int msqid;
void *msgp;
size_t msgsz;
int msgflg;
};
static int
ibcs2_msgsnd(struct thread *td, void *v)
{
struct ibcs2_msgsnd_args *uap = v;
struct msgsnd_args ap;
ap.msqid = uap->msqid;
ap.msgp = uap->msgp;
ap.msgsz = uap->msgsz;
ap.msgflg = uap->msgflg;
return (sys_msgsnd(td, &ap));
}
int
ibcs2_msgsys(td, uap)
struct thread *td;
struct ibcs2_msgsys_args *uap;
{
switch (uap->which) {
case 0:
return (ibcs2_msgget(td, uap));
case 1:
return (ibcs2_msgctl(td, uap));
case 2:
return (ibcs2_msgrcv(td, uap));
case 3:
return (ibcs2_msgsnd(td, uap));
default:
return (EINVAL);
}
}
/*
* iBCS2 semsys call
*/
#ifdef unused
static void
cvt_sem2isem(bp, ibp)
struct sem *bp;
struct ibcs2_sem *ibp;
{
ibp->semval = bp->semval;
ibp->sempid = bp->sempid;
ibp->semncnt = bp->semncnt;
ibp->semzcnt = bp->semzcnt;
return;
}
static void
cvt_isem2sem(ibp, bp)
struct ibcs2_sem *ibp;
struct sem *bp;
{
bp->semval = ibp->semval;
bp->sempid = ibp->sempid;
bp->semncnt = ibp->semncnt;
bp->semzcnt = ibp->semzcnt;
return;
}
#endif
static void
cvt_iperm2perm(ipp, pp)
struct ibcs2_ipc_perm *ipp;
struct ipc_perm *pp;
{
pp->uid = ipp->uid;
pp->gid = ipp->gid;
pp->cuid = ipp->cuid;
pp->cgid = ipp->cgid;
pp->mode = ipp->mode;
pp->seq = ipp->seq;
pp->key = ipp->key;
}
static void
cvt_perm2iperm(pp, ipp)
struct ipc_perm *pp;
struct ibcs2_ipc_perm *ipp;
{
ipp->uid = pp->uid;
ipp->gid = pp->gid;
ipp->cuid = pp->cuid;
ipp->cgid = pp->cgid;
ipp->mode = pp->mode;
ipp->seq = pp->seq;
ipp->key = pp->key;
}
static void
cvt_semid2isemid(bp, ibp)
struct semid_ds *bp;
struct ibcs2_semid_ds *ibp;
{
cvt_perm2iperm(&bp->sem_perm, &ibp->sem_perm);
ibp->sem_base = (struct ibcs2_sem *)bp->sem_base;
ibp->sem_nsems = bp->sem_nsems;
ibp->sem_otime = bp->sem_otime;
ibp->sem_ctime = bp->sem_ctime;
return;
}
static void
cvt_isemid2semid(ibp, bp)
struct ibcs2_semid_ds *ibp;
struct semid_ds *bp;
{
cvt_iperm2perm(&ibp->sem_perm, &bp->sem_perm);
bp->sem_base = (struct sem *)ibp->sem_base;
bp->sem_nsems = ibp->sem_nsems;
bp->sem_otime = ibp->sem_otime;
bp->sem_ctime = ibp->sem_ctime;
return;
}
struct ibcs2_semctl_args {
int what;
int semid;
int semnum;
int cmd;
union semun arg;
};
static int
ibcs2_semctl(struct thread *td, void *v)
{
struct ibcs2_semctl_args *uap = v;
struct ibcs2_semid_ds is;
struct semid_ds bs;
union semun semun;
register_t rval;
int error;
switch(uap->cmd) {
case IBCS2_IPC_STAT:
semun.buf = &bs;
error = kern_semctl(td, uap->semid, uap->semnum, IPC_STAT,
&semun, &rval);
if (error)
return (error);
cvt_semid2isemid(&bs, &is);
error = copyout(&is, uap->arg.buf, sizeof(is));
if (error == 0)
td->td_retval[0] = rval;
return (error);
case IBCS2_IPC_SET:
error = copyin(uap->arg.buf, &is, sizeof(is));
if (error)
return (error);
cvt_isemid2semid(&is, &bs);
semun.buf = &bs;
return (kern_semctl(td, uap->semid, uap->semnum, IPC_SET,
&semun, td->td_retval));
}
return (kern_semctl(td, uap->semid, uap->semnum, uap->cmd, &uap->arg,
td->td_retval));
}
struct ibcs2_semget_args {
int what;
ibcs2_key_t key;
int nsems;
int semflg;
};
static int
ibcs2_semget(struct thread *td, void *v)
{
struct ibcs2_semget_args *uap = v;
struct semget_args ap;
ap.key = uap->key;
ap.nsems = uap->nsems;
ap.semflg = uap->semflg;
return (sys_semget(td, &ap));
}
struct ibcs2_semop_args {
int what;
int semid;
struct sembuf *sops;
size_t nsops;
};
static int
ibcs2_semop(struct thread *td, void *v)
{
struct ibcs2_semop_args *uap = v;
struct semop_args ap;
ap.semid = uap->semid;
ap.sops = uap->sops;
ap.nsops = uap->nsops;
return (sys_semop(td, &ap));
}
int
ibcs2_semsys(td, uap)
struct thread *td;
struct ibcs2_semsys_args *uap;
{
switch (uap->which) {
case 0:
return (ibcs2_semctl(td, uap));
case 1:
return (ibcs2_semget(td, uap));
case 2:
return (ibcs2_semop(td, uap));
}
return (EINVAL);
}
/*
* iBCS2 shmsys call
*/
static void
cvt_shmid2ishmid(bp, ibp)
struct shmid_ds *bp;
struct ibcs2_shmid_ds *ibp;
{
cvt_perm2iperm(&bp->shm_perm, &ibp->shm_perm);
ibp->shm_segsz = bp->shm_segsz;
ibp->shm_lpid = bp->shm_lpid;
ibp->shm_cpid = bp->shm_cpid;
if (bp->shm_nattch > SHRT_MAX)
ibp->shm_nattch = SHRT_MAX;
else
ibp->shm_nattch = bp->shm_nattch;
ibp->shm_cnattch = 0; /* ignored anyway */
ibp->shm_atime = bp->shm_atime;
ibp->shm_dtime = bp->shm_dtime;
ibp->shm_ctime = bp->shm_ctime;
return;
}
static void
cvt_ishmid2shmid(ibp, bp)
struct ibcs2_shmid_ds *ibp;
struct shmid_ds *bp;
{
cvt_iperm2perm(&ibp->shm_perm, &bp->shm_perm);
bp->shm_segsz = ibp->shm_segsz;
bp->shm_lpid = ibp->shm_lpid;
bp->shm_cpid = ibp->shm_cpid;
bp->shm_nattch = ibp->shm_nattch;
bp->shm_atime = ibp->shm_atime;
bp->shm_dtime = ibp->shm_dtime;
bp->shm_ctime = ibp->shm_ctime;
return;
}
struct ibcs2_shmat_args {
int what;
int shmid;
const void *shmaddr;
int shmflg;
};
static int
ibcs2_shmat(struct thread *td, void *v)
{
struct ibcs2_shmat_args *uap = v;
struct shmat_args ap;
ap.shmid = uap->shmid;
ap.shmaddr = uap->shmaddr;
ap.shmflg = uap->shmflg;
return (sys_shmat(td, &ap));
}
struct ibcs2_shmctl_args {
int what;
int shmid;
int cmd;
struct ibcs2_shmid_ds *buf;
};
static int
ibcs2_shmctl(struct thread *td, void *v)
{
struct ibcs2_shmctl_args *uap = v;
struct ibcs2_shmid_ds is;
struct shmid_ds bs;
int error;
switch(uap->cmd) {
case IBCS2_IPC_STAT:
error = kern_shmctl(td, uap->shmid, IPC_STAT, &bs, NULL);
if (error)
return (error);
cvt_shmid2ishmid(&bs, &is);
return (copyout(&is, uap->buf, sizeof(is)));
case IBCS2_IPC_SET:
error = copyin(uap->buf, &is, sizeof(is));
if (error)
return (error);
cvt_ishmid2shmid(&is, &bs);
return (kern_shmctl(td, uap->shmid, IPC_SET, &bs, NULL));
case IPC_INFO:
case SHM_INFO:
case SHM_STAT:
/* XXX: */
return (EINVAL);
}
return (kern_shmctl(td, uap->shmid, uap->cmd, NULL, NULL));
}
struct ibcs2_shmdt_args {
int what;
const void *shmaddr;
};
static int
ibcs2_shmdt(struct thread *td, void *v)
{
struct ibcs2_shmdt_args *uap = v;
struct shmdt_args ap;
ap.shmaddr = uap->shmaddr;
return (sys_shmdt(td, &ap));
}
struct ibcs2_shmget_args {
int what;
ibcs2_key_t key;
size_t size;
int shmflg;
};
static int
ibcs2_shmget(struct thread *td, void *v)
{
struct ibcs2_shmget_args *uap = v;
struct shmget_args ap;
ap.key = uap->key;
ap.size = uap->size;
ap.shmflg = uap->shmflg;
return (sys_shmget(td, &ap));
}
int
ibcs2_shmsys(td, uap)
struct thread *td;
struct ibcs2_shmsys_args *uap;
{
switch (uap->which) {
case 0:
return (ibcs2_shmat(td, uap));
case 1:
return (ibcs2_shmctl(td, uap));
case 2:
return (ibcs2_shmdt(td, uap));
case 3:
return (ibcs2_shmget(td, uap));
}
return (EINVAL);
}
MODULE_DEPEND(ibcs2, sysvmsg, 1, 1, 1);
MODULE_DEPEND(ibcs2, sysvsem, 1, 1, 1);
MODULE_DEPEND(ibcs2, sysvshm, 1, 1, 1);