/*
* sys_ipc() is the de-multiplexer for the SysV IPC calls..
*
* This is really horribly ugly.
*/
asmlinkage int sys_ipc (uint call, int first, int second,
int third, void *ptr, long fifth)
{
int version;
version = call >> 16; /* hack for backward compatibility */
call &= 0xffff;
if (call <= SEMCTL)
switch (call) {
case SEMOP:
return sys_semop (first, (struct sembuf *)ptr, second);
case SEMGET:
return sys_semget (first, second, third);
case SEMCTL: {
union semun fourth;
if (!ptr)
return -EINVAL;
if (get_user(fourth.__pad, (void **) ptr))
return -EFAULT;
return sys_semctl (first, second, third, fourth);
}
default:
return -EINVAL;
}
if (call <= MSGCTL)
switch (call) {
case MSGSND:
return sys_msgsnd (first, (struct msgbuf *) ptr,
second, third);
case MSGRCV:
switch (version) {
case 0: {
struct ipc_kludge tmp;
if (!ptr)
return -EINVAL;
if (copy_from_user (&tmp,
(struct ipc_kludge *)ptr,
sizeof (tmp)))
return -EFAULT;
return sys_msgrcv (first, tmp.msgp, second,
tmp.msgtyp, third);
}
default:
return sys_msgrcv (first,
(struct msgbuf *) ptr,
second, fifth, third);
}
case MSGGET:
return sys_msgget ((key_t) first, second);
case MSGCTL:
return sys_msgctl (first, second,
(struct msqid_ds *) ptr);
default:
return -EINVAL;
}
return -EINVAL;
}
/*
* sys_ipc() is the de-multiplexer for the SysV IPC calls..
*
* This is really horribly ugly.
*/
asmlinkage int sys_ipc (uint call, int first, int second,
int third, void *ptr)
{
struct ipc_kludge tmp;
int ret;
switch (call) {
case SEMOP:
return sys_semop (first, (struct sembuf *)ptr, second);
case SEMGET:
return sys_semget (first, second, third);
case SEMCTL: {
union semun fourth;
if (!ptr)
return -EINVAL;
if (get_user(fourth.__pad, (void **) ptr))
return -EFAULT;
return sys_semctl (first, second, third, fourth);
}
case MSGSND:
return sys_msgsnd (first, (struct msgbuf *) ptr,
second, third);
break;
case MSGRCV:
if (!ptr)
return -EINVAL;
if (copy_from_user (&tmp, (struct ipc_kludge *) ptr,
sizeof (struct ipc_kludge)))
return -EFAULT;
return sys_msgrcv (first, tmp.msgp,
second, tmp.msgtyp, third);
case MSGGET:
return sys_msgget ((key_t) first, second);
case MSGCTL:
return sys_msgctl (first, second, (struct msqid_ds *) ptr);
case SHMAT: {
ulong raddr;
ret = sys_shmat (first, (char *) ptr, second, &raddr);
if (ret)
return ret;
return put_user (raddr, (ulong *) third);
break;
}
case SHMDT:
return sys_shmdt ((char *)ptr);
case SHMGET:
return sys_shmget (first, second, third);
case SHMCTL:
return sys_shmctl (first, second,
(struct shmid_ds *) ptr);
default:
return -EINVAL;
}
return -EINVAL;
}
static int
linux32_semop(struct lwp *l, const struct linux32_sys_ipc_args *uap,
register_t *retval)
{
struct sys_semop_args ua;
SCARG(&ua, semid) = SCARG(uap, a1);
SCARG(&ua, sops) = SCARG_P32(uap, ptr);
SCARG(&ua, nsops) = SCARG(uap, a2);
return sys_semop(l, &ua, retval);
}
asmlinkage int sunos_semsys(int op, unsigned long arg1, unsigned long arg2,
unsigned long arg3, void *ptr)
{
union semun arg4;
int ret;
switch (op) {
case 0:
/* Most arguments match on a 1:1 basis but cmd doesn't */
switch(arg3) {
case 4:
arg3=GETPID;
break;
case 5:
arg3=GETVAL;
break;
case 6:
arg3=GETALL;
break;
case 3:
arg3=GETNCNT;
break;
case 7:
arg3=GETZCNT;
break;
case 8:
arg3=SETVAL;
break;
case 9:
arg3=SETALL;
break;
}
/* sys_semctl(): */
/* value to modify semaphore to */
arg4.__pad = (void __user *) ptr;
ret = sys_semctl((int)arg1, (int)arg2, (int)arg3, arg4 );
break;
case 1:
/* sys_semget(): */
ret = sys_semget((key_t)arg1, (int)arg2, (int)arg3);
break;
case 2:
/* sys_semop(): */
ret = sys_semop((int)arg1, (struct sembuf __user *)arg2, (unsigned)arg3);
break;
default:
ret = -EINVAL;
break;
};
return ret;
}
int
linux_semop(struct thread *td, struct linux_semop_args *args)
{
struct semop_args /* {
int semid;
struct sembuf *sops;
int nsops;
} */ bsd_args;
bsd_args.semid = args->semid;
bsd_args.sops = PTRIN(args->tsops);
bsd_args.nsops = args->nsops;
return (sys_semop(td, &bsd_args));
}
int
netbsd32_semop(struct lwp *l, const struct netbsd32_semop_args *uap, register_t *retval)
{
/* {
syscallarg(int) semid;
syscallarg(netbsd32_sembufp_t) sops;
syscallarg(netbsd32_size_t) nsops;
} */
struct sys_semop_args ua;
NETBSD32TO64_UAP(semid);
NETBSD32TOP_UAP(sops, struct sembuf);
NETBSD32TOX_UAP(nsops, size_t);
return (sys_semop(l, &ua, retval));
}
int
linux_semop(struct lwp *l, const struct linux_sys_ipc_args *uap, register_t *retval)
{
/* {
syscallarg(int) what;
syscallarg(int) a1;
syscallarg(int) a2;
syscallarg(int) a3;
syscallarg(void *) ptr;
} */
struct sys_semop_args bsa;
SCARG(&bsa, semid) = SCARG(uap, a1);
SCARG(&bsa, sops) = (struct sembuf *)SCARG(uap, ptr);
SCARG(&bsa, nsops) = SCARG(uap, a2);
return sys_semop(l, &bsa, retval);
}
/*
* Old-style shmget(2) used u_int for the nsops parameter, we now use size_t.
*/
int
compat_35_sys_semop(struct proc *p, void *v, register_t *retval)
{
struct compat_35_sys_semop_args /* {
syscallarg(int) semid;
syscallarg(struct sembuf *) sops;
syscallarg(u_int) nsops;
} */ *uap = v;
struct sys_semop_args /* {
syscallarg(int) semid;
syscallarg(struct sembuf *) sops;
syscallarg(size_t) nsops;
} */ semop_args;
SCARG(&semop_args, semid) = SCARG(uap, semid);
SCARG(&semop_args, sops) = SCARG(uap, sops);
SCARG(&semop_args, nsops) = (size_t)SCARG(uap, nsops);
return (sys_semop(p, &semop_args, retval));
}
/*
* sys_ipc() is the de-multiplexer for the SysV IPC calls..
*
* This is really horribly ugly.
*/
asmlinkage int sys_ipc (uint call, int first, int second, int third, void *ptr, long fifth)
{
int version;
version = call >> 16; /* hack for backward compatibility */
call &= 0xffff;
if (call <= SEMCTL)
switch (call) {
case SEMOP:
return sys_semop (first, (struct sembuf *)ptr, second);
case SEMGET:
return sys_semget (first, second, third);
case SEMCTL: {
union semun fourth;
int err;
if (!ptr)
return -EINVAL;
if ((err = verify_area (VERIFY_READ, ptr, sizeof(long))))
return err;
fourth.__pad = get_user((void **)ptr);
return sys_semctl (first, second, third, fourth);
}
default:
return -EINVAL;
}
if (call <= MSGCTL)
switch (call) {
case MSGSND:
return sys_msgsnd (first, (struct msgbuf *) ptr,
second, third);
case MSGRCV:
switch (version) {
case 0: {
struct ipc_kludge tmp;
int err;
if (!ptr)
return -EINVAL;
if ((err = verify_area (VERIFY_READ, ptr, sizeof(tmp))))
return err;
memcpy_fromfs (&tmp,(struct ipc_kludge *) ptr,
sizeof (tmp));
return sys_msgrcv (first, tmp.msgp, second, tmp.msgtyp, third);
}
case 1:
default:
return sys_msgrcv (first, (struct msgbuf *) ptr, second, fifth, third);
}
case MSGGET:
return sys_msgget ((key_t) first, second);
case MSGCTL:
return sys_msgctl (first, second, (struct msqid_ds *) ptr);
default:
return -EINVAL;
}
if (call <= SHMCTL)
switch (call) {
case SHMAT:
switch (version) {
case 0:
default: {
ulong raddr;
int err;
if ((err = verify_area(VERIFY_WRITE, (ulong*) third, sizeof(ulong))))
return err;
err = sys_shmat (first, (char *) ptr, second, &raddr);
if (err)
return err;
put_user (raddr, (ulong *) third);
return 0;
}
case 1: /* iBCS2 emulator entry point */
if (get_fs() != get_ds())
return -EINVAL;
return sys_shmat (first, (char *) ptr, second, (ulong *) third);
}
case SHMDT:
return sys_shmdt ((char *)ptr);
case SHMGET:
return sys_shmget (first, second, third);
case SHMCTL:
return sys_shmctl (first, second, (struct shmid_ds *) ptr);
default:
return -EINVAL;
}
return -EINVAL;
}
/*
* sys_ipc() is the de-multiplexer for the SysV IPC calls..
*
* This is really horribly ugly.
*/
asmlinkage int sys_ipc (uint call, int first, int second,
unsigned long third, void *ptr, long fifth)
{
int version, ret;
version = call >> 16; /* hack for backward compatibility */
call &= 0xffff;
switch (call) {
case SEMOP:
return sys_semop (first, (struct sembuf *)ptr, second);
case SEMGET:
return sys_semget (first, second, third);
case SEMCTL: {
union semun fourth;
if (!ptr)
return -EINVAL;
if (get_user(fourth.__pad, (void **) ptr))
return -EFAULT;
return sys_semctl (first, second, third, fourth);
}
case MSGSND:
return sys_msgsnd (first, (struct msgbuf *) ptr,
second, third);
case MSGRCV:
switch (version) {
case 0: {
struct ipc_kludge tmp;
if (!ptr)
return -EINVAL;
if (copy_from_user(&tmp,
(struct ipc_kludge *) ptr,
sizeof (tmp)))
return -EFAULT;
return sys_msgrcv (first, tmp.msgp, second,
tmp.msgtyp, third);
}
default:
return sys_msgrcv (first,
(struct msgbuf *) ptr,
second, fifth, third);
}
case MSGGET:
return sys_msgget ((key_t) first, second);
case MSGCTL:
return sys_msgctl (first, second, (struct msqid_ds *) ptr);
case SHMAT:
switch (version) {
default: {
ulong raddr;
ret = sys_shmat (first, (char *) ptr, second, &raddr);
if (ret)
return ret;
return put_user (raddr, (ulong *) third);
}
case 1: /* iBCS2 emulator entry point */
if (!segment_eq(get_fs(), get_ds()))
return -EINVAL;
return sys_shmat (first, (char *) ptr, second, (ulong *) third);
}
case SHMDT:
return sys_shmdt ((char *)ptr);
case SHMGET:
return sys_shmget (first, second, third);
case SHMCTL:
return sys_shmctl (first, second,
(struct shmid_ds *) ptr);
default:
return -ENOSYS;
}
}
/*
* sys_ipc() is the de-multiplexer for the SysV IPC calls..
*
* This is really horribly ugly. This will be remove with new toolchain.
*/
asmlinkage long
sys_ipc(uint call, int first, int second, int third, void *ptr, long fifth)
{
int version, ret;
version = call >> 16; /* hack for backward compatibility */
call &= 0xffff;
ret = -EINVAL;
switch (call) {
case SEMOP:
ret = sys_semop(first, (struct sembuf *)ptr, second);
break;
case SEMGET:
ret = sys_semget(first, second, third);
break;
case SEMCTL:
{
union semun fourth;
if (!ptr)
break;
ret = (access_ok(VERIFY_READ, ptr, sizeof(long)) ? 0 : -EFAULT)
|| (get_user(fourth.__pad, (void **)ptr)) ;
if (ret)
break;
ret = sys_semctl(first, second, third, fourth);
break;
}
case MSGSND:
ret = sys_msgsnd(first, (struct msgbuf *) ptr, second, third);
break;
case MSGRCV:
switch (version) {
case 0: {
struct ipc_kludge tmp;
if (!ptr)
break;
ret = (access_ok(VERIFY_READ, ptr, sizeof(tmp))
? 0 : -EFAULT) || copy_from_user(&tmp,
(struct ipc_kludge *) ptr, sizeof(tmp));
if (ret)
break;
ret = sys_msgrcv(first, tmp.msgp, second, tmp.msgtyp,
third);
break;
}
default:
ret = sys_msgrcv(first, (struct msgbuf *) ptr,
second, fifth, third);
break;
}
break;
case MSGGET:
ret = sys_msgget((key_t) first, second);
break;
case MSGCTL:
ret = sys_msgctl(first, second, (struct msqid_ds *) ptr);
break;
case SHMAT:
switch (version) {
default: {
ulong raddr;
ret = access_ok(VERIFY_WRITE, (ulong *) third,
sizeof(ulong)) ? 0 : -EFAULT;
if (ret)
break;
ret = do_shmat(first, (char *) ptr, second, &raddr);
if (ret)
break;
ret = put_user(raddr, (ulong *) third);
break;
}
case 1: /* iBCS2 emulator entry point */
if (!segment_eq(get_fs(), get_ds()))
break;
ret = do_shmat(first, (char *) ptr, second,
(ulong *) third);
break;
}
break;
case SHMDT:
ret = sys_shmdt((char *)ptr);
break;
case SHMGET:
ret = sys_shmget(first, second, third);
break;
case SHMCTL:
ret = sys_shmctl(first, second, (struct shmid_ds *) ptr);
break;
}
return ret;
}
/*
* sys_ipc() is the de-multiplexer for the SysV IPC calls..
*
* This is really horribly ugly.
*/
asmlinkage int
sys_ipc (uint call, int first, int second, long third, void *ptr, long fifth)
{
int version, ret;
PPCDBG(PPCDBG_SYS64X, "sys_ipc - entered - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
version = call >> 16; /* hack for backward compatibility */
call &= 0xffff;
ret = -EINVAL;
switch (call) {
case SEMOP:
ret = sys_semop (first, (struct sembuf *)ptr, second);
break;
case SEMGET:
ret = sys_semget (first, second, third);
break;
case SEMCTL: {
union semun fourth;
if (!ptr)
break;
if ((ret = verify_area (VERIFY_READ, ptr, sizeof(long)))
|| (ret = get_user(fourth.__pad, (void **)ptr)))
break;
ret = sys_semctl (first, second, third, fourth);
break;
}
case MSGSND:
ret = sys_msgsnd (first, (struct msgbuf *) ptr, second, third);
break;
case MSGRCV:
switch (version) {
case 0: {
struct ipc_kludge tmp;
if (!ptr)
break;
if ((ret = verify_area (VERIFY_READ, ptr, sizeof(tmp)))
|| (ret = copy_from_user(&tmp,
(struct ipc_kludge *) ptr,
sizeof (tmp))))
break;
ret = sys_msgrcv (first, (struct msgbuf *)(unsigned long)tmp.msgp,
second, tmp.msgtyp, third);
break;
}
default:
ret = sys_msgrcv (first, (struct msgbuf *) ptr,
second, fifth, third);
break;
}
break;
case MSGGET:
ret = sys_msgget ((key_t) first, second);
break;
case MSGCTL:
ret = sys_msgctl (first, second, (struct msqid_ds *) ptr);
break;
case SHMAT:
switch (version) {
default: {
ulong raddr;
if ((ret = verify_area(VERIFY_WRITE, (ulong*) third,
sizeof(ulong))))
break;
ret = sys_shmat (first, (char *) ptr, second, &raddr);
if (ret)
break;
ret = put_user (raddr, (ulong *) third);
break;
}
case 1: /* iBCS2 emulator entry point */
if (!segment_eq(get_fs(), get_ds()))
break;
ret = sys_shmat (first, (char *) ptr, second,
(ulong *) third);
break;
}
break;
case SHMDT:
ret = sys_shmdt ((char *)ptr);
break;
case SHMGET:
ret = sys_shmget (first, second, third);
break;
case SHMCTL:
ret = sys_shmctl (first, second, (struct shmid_ds *) ptr);
break;
}
PPCDBG(PPCDBG_SYS64X, "sys_ipc - exited - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
return ret;
}
asmlinkage int sys_ipc (uint call, int first, int second, int third, void *ptr, long fifth)
{
int version, err;
version = call >> 16; /* hack for backward compatibility */
call &= 0xffff;
if (call <= SEMCTL)
switch (call) {
case SEMOP:
err = sys_semop (first, (struct sembuf *)ptr, second);
goto out;
case SEMGET:
err = sys_semget (first, second, third);
goto out;
case SEMCTL: {
union semun fourth;
err = -EINVAL;
if (!ptr)
goto out;
err = -EFAULT;
if(get_user(fourth.__pad, (void **)ptr))
goto out;
err = sys_semctl (first, second, third, fourth);
goto out;
}
default:
err = -EINVAL;
goto out;
}
if (call <= MSGCTL)
switch (call) {
case MSGSND:
err = sys_msgsnd (first, (struct msgbuf *) ptr,
second, third);
goto out;
case MSGRCV:
switch (version) {
case 0: {
struct ipc_kludge tmp;
err = -EINVAL;
if (!ptr)
goto out;
err = -EFAULT;
if(copy_from_user(&tmp,(struct ipc_kludge *) ptr, sizeof (tmp)))
goto out;
err = sys_msgrcv (first, tmp.msgp, second, tmp.msgtyp, third);
goto out;
}
case 1: default:
err = sys_msgrcv (first, (struct msgbuf *) ptr, second, fifth, third);
goto out;
}
case MSGGET:
err = sys_msgget ((key_t) first, second);
goto out;
case MSGCTL:
err = sys_msgctl (first, second, (struct msqid_ds *) ptr);
goto out;
default:
err = -EINVAL;
goto out;
}
if (call <= SHMCTL)
switch (call) {
case SHMAT:
switch (version) {
case 0: default: {
ulong raddr;
err = sys_shmat (first, (char *) ptr, second, &raddr);
if (err)
goto out;
err = -EFAULT;
if(put_user (raddr, (ulong *) third))
goto out;
err = 0;
goto out;
}
case 1: /* iBCS2 emulator entry point */
err = sys_shmat (first, (char *) ptr, second, (ulong *) third);
goto out;
}
case SHMDT:
err = sys_shmdt ((char *)ptr);
goto out;
case SHMGET:
err = sys_shmget (first, second, third);
goto out;
case SHMCTL:
err = sys_shmctl (first, second, (struct shmid_ds *) ptr);
goto out;
default:
err = -EINVAL;
goto out;
}
else
err = -EINVAL;
out:
return err;
}
