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NetBSD/sys/compat/ibcs2/ibcs2_ipc.c

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/* $NetBSD: ibcs2_ipc.c,v 1.15 2002/03/16 20:43:51 christos Exp $ */
/*
* Copyright (c) 1995 Scott Bartram
* 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>
__KERNEL_RCSID(0, "$NetBSD: ibcs2_ipc.c,v 1.15 2002/03/16 20:43:51 christos Exp $");
#if defined(_KERNEL_OPT)
#include "opt_sysv.h"
#endif
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/namei.h>
#include <sys/proc.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/filedesc.h>
#include <sys/ioctl.h>
#include <sys/ipc.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/mbuf.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/reboot.h>
#include <sys/resource.h>
#include <sys/resourcevar.h>
#include <sys/signal.h>
#include <sys/signalvar.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <sys/times.h>
#include <sys/vnode.h>
#include <sys/uio.h>
#include <sys/wait.h>
#include <sys/utsname.h>
#include <sys/unistd.h>
#include <sys/msg.h>
#include <sys/sem.h>
#include <sys/shm.h>
#include <sys/syscallargs.h>
#include <compat/ibcs2/ibcs2_types.h>
#include <compat/ibcs2/ibcs2_signal.h>
#include <compat/ibcs2/ibcs2_syscallargs.h>
#include <compat/ibcs2/ibcs2_util.h>
#define IBCS2_IPC_RMID 0
#define IBCS2_IPC_SET 1
#define IBCS2_IPC_STAT 2
struct ibcs2_ipc_perm {
ibcs2_uid_t uid;
ibcs2_gid_t gid;
ibcs2_uid_t cuid;
ibcs2_gid_t cgid;
ibcs2_mode_t mode;
u_short seq;
ibcs2_key_t key;
};
#if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM)
static void cvt_perm2iperm __P((struct ipc_perm14 *, struct ibcs2_ipc_perm *));
static void cvt_iperm2perm __P((struct ibcs2_ipc_perm *, struct ipc_perm14 *));
static void
cvt_perm2iperm(bp, ibp)
struct ipc_perm14 *bp;
struct ibcs2_ipc_perm *ibp;
{
ibp->cuid = bp->cuid;
ibp->cgid = bp->cgid;
ibp->uid = bp->uid;
ibp->gid = bp->gid;
ibp->mode = bp->mode;
ibp->seq = bp->seq;
ibp->key = bp->key;
}
static void
cvt_iperm2perm(ibp, bp)
struct ibcs2_ipc_perm *ibp;
struct ipc_perm14 *bp;
{
bp->cuid = ibp->cuid;
bp->cgid = ibp->cgid;
bp->uid = ibp->uid;
bp->gid = ibp->gid;
bp->mode = ibp->mode;
bp->seq = ibp->seq;
bp->key = ibp->key;
}
#endif /* SYSVMSG || SYSVSEM || SYSVMSG */
#ifdef SYSVMSG
/*
* iBCS2 msgsys call
*/
struct ibcs2_msqid_ds {
struct ibcs2_ipc_perm msg_perm;
struct __msg *msg_first;
struct __msg *msg_last;
u_short msg_cbytes;
u_short msg_qnum;
u_short msg_qbytes;
u_short msg_lspid;
u_short msg_lrpid;
ibcs2_time_t msg_stime;
ibcs2_time_t msg_rtime;
ibcs2_time_t msg_ctime;
};
static void cvt_msqid2imsqid __P((struct msqid_ds14 *,
struct ibcs2_msqid_ds *));
static void cvt_imsqid2msqid __P((struct ibcs2_msqid_ds *,
struct msqid_ds14 *));
static void
cvt_msqid2imsqid(bp, ibp)
struct msqid_ds14 *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_ds14 *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;
}
int
ibcs2_sys_msgsys(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_msgsys_args /* {
syscallarg(int) which;
syscallarg(int) a2;
syscallarg(int) a3;
syscallarg(int) a4;
syscallarg(int) a5;
syscallarg(int) a6;
} */ *uap = v;
switch (SCARG(uap, which)) {
#ifdef SYSVMSG
case 0: /* msgget */
SCARG(uap, which) = 1;
return compat_10_sys_msgsys(p, uap, retval);
case 1: { /* msgctl */
int error;
struct compat_10_sys_msgsys_args margs;
caddr_t sg = stackgap_init(p, 0);
SCARG(&margs, which) = 0;
SCARG(&margs, a2) = SCARG(uap, a2);
SCARG(&margs, a4) =
(int)stackgap_alloc(p, &sg, sizeof(struct msqid_ds14));
SCARG(&margs, a3) = SCARG(uap, a3);
switch (SCARG(&margs, a3)) {
case IBCS2_IPC_STAT:
error = compat_10_sys_msgsys(p, &margs, retval);
if (!error)
cvt_msqid2imsqid((struct msqid_ds14 *)
SCARG(&margs, a4),
(struct ibcs2_msqid_ds *)SCARG(uap, a4));
return error;
case IBCS2_IPC_SET:
cvt_imsqid2msqid((struct ibcs2_msqid_ds *)SCARG(uap,
a4),
(struct msqid_ds14 *) SCARG(&margs,
a4));
return compat_10_sys_msgsys(p, &margs, retval);
case IBCS2_IPC_RMID:
return compat_10_sys_msgsys(p, &margs, retval);
}
return EINVAL;
}
case 2: /* msgrcv */
SCARG(uap, which) = 3;
return compat_10_sys_msgsys(p, uap, retval);
case 3: /* msgsnd */
SCARG(uap, which) = 2;
return compat_10_sys_msgsys(p, uap, retval);
#endif
default:
return EINVAL;
}
}
#endif /* SYSVMSG */
#ifdef SYSVSEM
/*
* iBCS2 semsys call
*/
struct ibcs2_semid_ds {
struct ibcs2_ipc_perm sem_perm;
struct ibcs2_sem *sem_base;
u_short sem_nsems;
u_short pad1;
ibcs2_time_t sem_otime;
ibcs2_time_t sem_ctime;
};
struct ibcs2_sem {
u_short semval;
ibcs2_pid_t sempid;
u_short semncnt;
u_short semzcnt;
};
static void cvt_semid2isemid __P((struct semid_ds14 *,
struct ibcs2_semid_ds *));
static void cvt_isemid2semid __P((struct ibcs2_semid_ds *,
struct semid_ds14 *));
#ifdef notdef
static void cvt_sem2isem __P((struct sem *, struct ibcs2_sem *));
static void cvt_isem2sem __P((struct ibcs2_sem *, struct sem *));
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_semid2isemid(bp, ibp)
struct semid_ds14 *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_ds14 *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;
}
int
ibcs2_sys_semsys(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_semsys_args /* {
syscallarg(int) which;
syscallarg(int) a2;
syscallarg(int) a3;
syscallarg(int) a4;
syscallarg(int) a5;
} */ *uap = v;
int error;
#ifdef SYSVSEM
switch (SCARG(uap, which)) {
case 0: /* semctl */
switch(SCARG(uap, a4)) {
case IBCS2_IPC_STAT:
{
struct ibcs2_semid_ds *isp, isi;
struct semid_ds14 *sp, s;
caddr_t sg = stackgap_init(p, 0);
isp = (struct ibcs2_semid_ds *)SCARG(uap, a5);
sp = stackgap_alloc(p, &sg, sizeof(struct semid_ds14));
SCARG(uap, a5) = (int)sp;
error = compat_10_sys_semsys(p, uap, retval);
if (error)
return error;
error = copyin((caddr_t)sp, (caddr_t)&s,
sizeof(s));
if (error)
return error;
cvt_semid2isemid(&s, &isi);
return copyout((caddr_t)&isi, (caddr_t)isp,
sizeof(isi));
}
case IBCS2_IPC_SET:
{
struct ibcs2_semid_ds isp;
struct semid_ds14 *sp, s;
caddr_t sg = stackgap_init(p, 0);
error = copyin((caddr_t)SCARG(uap, a5),
(caddr_t)&isp, sizeof(isp));
if (error)
return error;
cvt_isemid2semid(&isp, &s);
sp = stackgap_alloc(p, &sg, sizeof(s));
error = copyout((caddr_t)&s, (caddr_t)sp,
sizeof(s));
if (error)
return error;
SCARG(uap, a5) = (int)sp;
return compat_10_sys_semsys(p, uap, retval);
}
}
return compat_10_sys_semsys(p, uap, retval);
case 1: /* semget */
return compat_10_sys_semsys(p, uap, retval);
case 2: /* semop */
return compat_10_sys_semsys(p, uap, retval);
}
#endif
return EINVAL;
}
#endif /* SYSVSEM */
#ifdef SYSVSHM
/*
* iBCS2 shmsys call
*/
struct ibcs2_shmid_ds {
struct ibcs2_ipc_perm shm_perm;
int shm_segsz;
int pad1;
char pad2[4];
u_short shm_lpid;
u_short shm_cpid;
u_short shm_nattch;
u_short shm_cnattch;
ibcs2_time_t shm_atime;
ibcs2_time_t shm_dtime;
ibcs2_time_t shm_ctime;
};
static void cvt_shmid2ishmid __P((struct shmid_ds14 *,
struct ibcs2_shmid_ds *));
static void cvt_ishmid2shmid __P((struct ibcs2_shmid_ds *,
struct shmid_ds14 *));
static void
cvt_shmid2ishmid(bp, ibp)
struct shmid_ds14 *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;
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_ds14 *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;
bp->shm_internal = (void *)0; /* ignored anyway */
return;
}
int
ibcs2_sys_shmsys(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_shmsys_args /* {
syscallarg(int) which;
syscallarg(int) a2;
syscallarg(int) a3;
syscallarg(int) a4;
} */ *uap = v;
int error;
#ifdef SYSVSHM
switch (SCARG(uap, which)) {
case 0: /* shmat */
return compat_10_sys_shmsys(p, uap, retval);
case 1: /* shmctl */
switch(SCARG(uap, a3)) {
case IBCS2_IPC_STAT:
{
struct ibcs2_shmid_ds *isp, is;
struct shmid_ds14 *sp, s;
caddr_t sg = stackgap_init(p, 0);
isp = (struct ibcs2_shmid_ds *)SCARG(uap, a4);
sp = stackgap_alloc(p, &sg, sizeof(*sp));
SCARG(uap, a4) = (int)sp;
error = compat_10_sys_shmsys(p, uap, retval);
if (error)
return error;
error = copyin((caddr_t)sp, (caddr_t)&s,
sizeof(s));
if (error)
return error;
cvt_shmid2ishmid(&s, &is);
return copyout((caddr_t)&is, (caddr_t)isp,
sizeof(is));
}
case IBCS2_IPC_SET:
{
struct ibcs2_shmid_ds is;
struct shmid_ds14 *sp, s;
caddr_t sg = stackgap_init(p, 0);
error = copyin((caddr_t)SCARG(uap, a4),
(caddr_t)&is, sizeof(is));
if (error)
return error;
cvt_ishmid2shmid(&is, &s);
sp = stackgap_alloc(p, &sg, sizeof(*sp));
SCARG(uap, a4) = (int)sp;
error = copyout((caddr_t)&s, (caddr_t)sp,
sizeof(s));
if (error)
return error;
return compat_10_sys_shmsys(p, uap, retval);
}
}
return compat_10_sys_shmsys(p, uap, retval);
case 2: /* shmdt */
return compat_10_sys_shmsys(p, uap, retval);
case 3: /* shmget */
return compat_10_sys_shmsys(p, uap, retval);
}
#endif
return EINVAL;
}
#endif /* SYSVSHM */
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