1 /* $NetBSD: sysv_shm_14.c,v 1.4 2001/11/13 02:08:03 lukem Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 #include <sys/cdefs.h> 41 __KERNEL_RCSID(0, "$NetBSD: sysv_shm_14.c,v 1.4 2001/11/13 02:08:03 lukem Exp $"); 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/signal.h> 46 #include <sys/proc.h> 47 #include <sys/mount.h> 48 #include <sys/shm.h> 49 50 #ifndef SYSVSHM 51 #define SYSVSHM 52 #endif 53 54 #include <sys/syscallargs.h> 55 56 static void shmid_ds14_to_native __P((struct shmid_ds14 *, struct shmid_ds *)); 57 static void native_to_shmid_ds14 __P((struct shmid_ds *, struct shmid_ds14 *)); 58 59 static void 60 shmid_ds14_to_native(oshmbuf, shmbuf) 61 struct shmid_ds14 *oshmbuf; 62 struct shmid_ds *shmbuf; 63 { 64 65 ipc_perm14_to_native(&oshmbuf->shm_perm, &shmbuf->shm_perm); 66 67 #define CVT(x) shmbuf->x = oshmbuf->x 68 CVT(shm_segsz); 69 CVT(shm_lpid); 70 CVT(shm_cpid); 71 CVT(shm_nattch); 72 CVT(shm_atime); 73 CVT(shm_dtime); 74 CVT(shm_ctime); 75 #undef CVT 76 } 77 78 static void 79 native_to_shmid_ds14(shmbuf, oshmbuf) 80 struct shmid_ds *shmbuf; 81 struct shmid_ds14 *oshmbuf; 82 { 83 84 native_to_ipc_perm14(&shmbuf->shm_perm, &oshmbuf->shm_perm); 85 86 #define CVT(x) oshmbuf->x = shmbuf->x 87 CVT(shm_segsz); 88 CVT(shm_lpid); 89 CVT(shm_cpid); 90 CVT(shm_nattch); 91 CVT(shm_atime); 92 CVT(shm_dtime); 93 CVT(shm_ctime); 94 #undef CVT 95 } 96 97 int 98 compat_14_sys_shmctl(p, v, retval) 99 struct proc *p; 100 void *v; 101 register_t *retval; 102 { 103 struct compat_14_sys_shmctl_args /* { 104 syscallarg(int) shmid; 105 syscallarg(int) cmd; 106 syscallarg(struct shmid_ds14 *) buf; 107 } */ *uap = v; 108 struct shmid_ds shmbuf; 109 struct shmid_ds14 oshmbuf; 110 int cmd, error; 111 112 cmd = SCARG(uap, cmd); 113 114 if (cmd == IPC_SET) { 115 error = copyin(SCARG(uap, buf), &oshmbuf, sizeof(oshmbuf)); 116 if (error) 117 return (error); 118 shmid_ds14_to_native(&oshmbuf, &shmbuf); 119 } 120 121 error = shmctl1(p, SCARG(uap, shmid), cmd, 122 (cmd == IPC_SET || cmd == IPC_STAT) ? &shmbuf : NULL); 123 124 if (error == 0 && cmd == IPC_STAT) { 125 native_to_shmid_ds14(&shmbuf, &oshmbuf); 126 error = copyout(&oshmbuf, SCARG(uap, buf), sizeof(oshmbuf)); 127 } 128 129 return (error); 130 } 131