mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-22 11:17:19 +00:00
81090119af
sysv_ipc.c: add stub functions that either simply return (for the hooks in kern_fork/kern_exit) or log() a messgae and call enosys() (for the syscalls). sysv_ipc.c will become "standard" in conf/files and has #ifs for all the permutations.
299 lines
6.1 KiB
C
299 lines
6.1 KiB
C
/* $Id: sysv_ipc.c,v 1.2 1996/01/05 16:37:52 wollman Exp $ */
|
|
/* $NetBSD: sysv_ipc.c,v 1.7 1994/06/29 06:33:11 cgd Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1994 Herb Peyerl <hpeyerl@novatel.ca>
|
|
* 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. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Herb Peyerl.
|
|
* 4. The name of Herb Peyerl 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 "opt_sysvipc.h"
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/syslog.h>
|
|
#include <sys/sysproto.h>
|
|
#include <sys/ipc.h>
|
|
#include <sys/shm.h>
|
|
#include <sys/sem.h>
|
|
|
|
#if defined(SYSVSEM) || defined(SYSVSHM) || defined(SYSVMSG)
|
|
|
|
/*
|
|
* Check for ipc permission
|
|
*/
|
|
|
|
int
|
|
ipcperm(cred, perm, mode)
|
|
struct ucred *cred;
|
|
struct ipc_perm *perm;
|
|
int mode;
|
|
{
|
|
|
|
if (cred->cr_uid == 0)
|
|
return (0);
|
|
|
|
/* Check for user match. */
|
|
if (cred->cr_uid != perm->cuid && cred->cr_uid != perm->uid) {
|
|
if (mode & IPC_M)
|
|
return (EPERM);
|
|
/* Check for group match. */
|
|
mode >>= 3;
|
|
if (!groupmember(perm->gid, cred) &&
|
|
!groupmember(perm->cgid, cred))
|
|
/* Check for `other' match. */
|
|
mode >>= 3;
|
|
}
|
|
|
|
if (mode & IPC_M)
|
|
return (0);
|
|
return ((mode & perm->mode) == mode ? 0 : EACCES);
|
|
}
|
|
|
|
#endif /* defined(SYSVSEM) || defined(SYSVSHM) || defined(SYSVMSG) */
|
|
|
|
|
|
#if !defined(SYSVSEM) || !defined(SYSVSHM) || !defined(SYSVMSG)
|
|
|
|
static void sysv_nosys __P((struct proc *p, char *s));
|
|
|
|
static void
|
|
sysv_nosys(p, s)
|
|
struct proc *p;
|
|
char *s;
|
|
{
|
|
log(LOG_ERR, "cmd %s pid %d tried to use non-present %s\n",
|
|
p->p_comm, p->p_pid, s);
|
|
}
|
|
|
|
#if !defined(SYSVSEM)
|
|
|
|
/*
|
|
* SYSVSEM stubs
|
|
*/
|
|
|
|
int
|
|
semsys(p, uap, retval)
|
|
struct proc *p;
|
|
struct semsys_args *uap;
|
|
int *retval;
|
|
{
|
|
sysv_nosys(p, "SYSVSEM");
|
|
return nosys(p, (struct nosys_args *)uap, retval);
|
|
};
|
|
|
|
int
|
|
semconfig(p, uap, retval)
|
|
struct proc *p;
|
|
struct semconfig_args *uap;
|
|
int *retval;
|
|
{
|
|
sysv_nosys(p, "SYSVSEM");
|
|
return nosys(p, (struct nosys_args *)uap, retval);
|
|
};
|
|
|
|
int
|
|
__semctl(p, uap, retval)
|
|
struct proc *p;
|
|
register struct __semctl_args *uap;
|
|
int *retval;
|
|
{
|
|
sysv_nosys(p, "SYSVSEM");
|
|
return nosys(p, (struct nosys_args *)uap, retval);
|
|
};
|
|
|
|
int
|
|
semget(p, uap, retval)
|
|
struct proc *p;
|
|
register struct semget_args *uap;
|
|
int *retval;
|
|
{
|
|
sysv_nosys(p, "SYSVSEM");
|
|
return nosys(p, (struct nosys_args *)uap, retval);
|
|
};
|
|
|
|
int
|
|
semop(p, uap, retval)
|
|
struct proc *p;
|
|
register struct semop_args *uap;
|
|
int *retval;
|
|
{
|
|
sysv_nosys(p, "SYSVSEM");
|
|
return nosys(p, (struct nosys_args *)uap, retval);
|
|
};
|
|
|
|
/* called from kern_exit.c */
|
|
void
|
|
semexit(p)
|
|
struct proc *p;
|
|
{
|
|
return;
|
|
}
|
|
|
|
#endif /* !defined(SYSVSEM) */
|
|
|
|
|
|
#if !defined(SYSVMSG)
|
|
|
|
/*
|
|
* SYSVMSG stubs
|
|
*/
|
|
|
|
int
|
|
msgsys(p, uap, retval)
|
|
struct proc *p;
|
|
/* XXX actually varargs. */
|
|
struct msgsys_args *uap;
|
|
int *retval;
|
|
{
|
|
sysv_nosys(p, "SYSVMSG");
|
|
return nosys(p, (struct nosys_args *)uap, retval);
|
|
};
|
|
|
|
int
|
|
msgctl(p, uap, retval)
|
|
struct proc *p;
|
|
register struct msgctl_args *uap;
|
|
int *retval;
|
|
{
|
|
sysv_nosys(p, "SYSVMSG");
|
|
return nosys(p, (struct nosys_args *)uap, retval);
|
|
};
|
|
|
|
int
|
|
msgget(p, uap, retval)
|
|
struct proc *p;
|
|
register struct msgget_args *uap;
|
|
int *retval;
|
|
{
|
|
sysv_nosys(p, "SYSVMSG");
|
|
return nosys(p, (struct nosys_args *)uap, retval);
|
|
};
|
|
|
|
int
|
|
msgsnd(p, uap, retval)
|
|
struct proc *p;
|
|
register struct msgsnd_args *uap;
|
|
int *retval;
|
|
{
|
|
sysv_nosys(p, "SYSVMSG");
|
|
return nosys(p, (struct nosys_args *)uap, retval);
|
|
};
|
|
|
|
int
|
|
msgrcv(p, uap, retval)
|
|
struct proc *p;
|
|
register struct msgrcv_args *uap;
|
|
int *retval;
|
|
{
|
|
sysv_nosys(p, "SYSVMSG");
|
|
return nosys(p, (struct nosys_args *)uap, retval);
|
|
};
|
|
|
|
#endif /* !defined(SYSVMSG) */
|
|
|
|
|
|
#if !defined(SYSVSHM)
|
|
|
|
/*
|
|
* SYSVSHM stubs
|
|
*/
|
|
|
|
int
|
|
shmdt(p, uap, retval)
|
|
struct proc *p;
|
|
struct shmdt_args *uap;
|
|
int *retval;
|
|
{
|
|
sysv_nosys(p, "SYSVSHM");
|
|
return nosys(p, (struct nosys_args *)uap, retval);
|
|
};
|
|
|
|
int
|
|
shmat(p, uap, retval)
|
|
struct proc *p;
|
|
struct shmat_args *uap;
|
|
int *retval;
|
|
{
|
|
sysv_nosys(p, "SYSVSHM");
|
|
return nosys(p, (struct nosys_args *)uap, retval);
|
|
};
|
|
|
|
int
|
|
shmctl(p, uap, retval)
|
|
struct proc *p;
|
|
struct shmctl_args *uap;
|
|
int *retval;
|
|
{
|
|
sysv_nosys(p, "SYSVSHM");
|
|
return nosys(p, (struct nosys_args *)uap, retval);
|
|
};
|
|
|
|
int
|
|
shmget(p, uap, retval)
|
|
struct proc *p;
|
|
struct shmget_args *uap;
|
|
int *retval;
|
|
{
|
|
sysv_nosys(p, "SYSVSHM");
|
|
return nosys(p, (struct nosys_args *)uap, retval);
|
|
};
|
|
|
|
int
|
|
shmsys(p, uap, retval)
|
|
struct proc *p;
|
|
/* XXX actually varargs. */
|
|
struct shmsys_args *uap;
|
|
int *retval;
|
|
{
|
|
sysv_nosys(p, "SYSVSHM");
|
|
return nosys(p, (struct nosys_args *)uap, retval);
|
|
};
|
|
|
|
/* called from kern_fork.c */
|
|
void
|
|
shmfork(p1, p2, isvfork)
|
|
struct proc *p1, *p2;
|
|
int isvfork;
|
|
{
|
|
return;
|
|
}
|
|
|
|
/* called from kern_exit.c */
|
|
void
|
|
shmexit(p)
|
|
struct proc *p;
|
|
{
|
|
return;
|
|
}
|
|
|
|
#endif /* !defined(SYSVSHM) */
|
|
|
|
#endif /* !defined(SYSVSEM) || !defined(SYSVSHM) || !defined(SYSVMSG) */
|