1/* $NetBSD: kern_ipc_10.c,v 1.23.8.3 2008/11/20 20:45:38 christos Exp $ */ 2 3/* 4 * Copyright (c) 1994 Adam Glass and Charles M. Hannum. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Adam Glass and Charles M. 17 * Hannum. 18 * 4. The names of the authors may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33#include <sys/cdefs.h> 34__KERNEL_RCSID(0, "$NetBSD: kern_ipc_10.c,v 1.23.8.3 2008/11/20 20:45:38 christos Exp $"); 35 36#ifdef _KERNEL_OPT 37#include "opt_sysv.h" 38#endif 39 40#include <sys/param.h> 41#include <sys/systm.h> 42#include <sys/kernel.h> 43#include <sys/proc.h> 44#include <sys/sem.h> 45#include <sys/shm.h> 46 47#include <sys/mount.h> 48#include <sys/syscallargs.h> 49 50#include <compat/common/compat_util.h> 51#include <compat/sys/shm.h> 52#include <compat/sys/sem.h> 53 54#if defined(SYSVSEM) && !defined(_LP64) 55int 56compat_10_sys_semsys(struct lwp *l, const struct compat_10_sys_semsys_args *uap, register_t *retval) 57{ 58 /* { 59 syscallarg(int) which; 60 syscallarg(int) a2; 61 syscallarg(int) a3; 62 syscallarg(int) a4; 63 syscallarg(int) a5; 64 } */ 65 struct sys_semget_args /* { 66 syscallarg(key_t) key; 67 syscallarg(int) nsems; 68 syscallarg(int) semflg; 69 } */ semget_args; 70 struct sys_semop_args /* { 71 syscallarg(int) semid; 72 syscallarg(struct sembuf *) sops; 73 syscallarg(u_int) nsops; 74 } */ semop_args; 75 struct sys_semconfig_args /* { 76 syscallarg(int) flag; 77 } */ semconfig_args; 78 struct semid_ds sembuf; 79 struct semid_ds14 osembuf; 80 void *pass_arg; 81 int a5 = SCARG(uap, a5); 82 int error; 83 84 switch (SCARG(uap, which)) { 85 case 0: /* __semctl() */ 86#define semctl_semid SCARG(uap, a2) 87#define semctl_semnum SCARG(uap, a3) 88#define semctl_cmd SCARG(uap, a4) 89#define semctl_arg ((union __semun *)&a5) 90 pass_arg = get_semctl_arg(semctl_cmd, &sembuf, semctl_arg); 91 if (semctl_cmd == IPC_SET) { 92 error = copyin(semctl_arg->buf, &osembuf, sizeof osembuf); 93 if (error != 0) 94 return error; 95 __semid_ds14_to_native(&osembuf, &sembuf); 96 } 97 error = semctl1(l, semctl_semid, semctl_semnum, semctl_cmd, 98 pass_arg, retval); 99 if (error == 0 && semctl_cmd == IPC_STAT) { 100 __native_to_semid_ds14(&sembuf, &osembuf); 101 error = copyout(&osembuf, semctl_arg->buf, sizeof(osembuf)); 102 } 103 return error; 104#undef semctl_semid 105#undef semctl_semnum 106#undef semctl_cmd 107#undef semctl_arg 108 109 case 1: /* semget() */ 110 SCARG(&semget_args, key) = SCARG(uap, a2); 111 SCARG(&semget_args, nsems) = SCARG(uap, a3); 112 SCARG(&semget_args, semflg) = SCARG(uap, a4); 113 return (sys_semget(l, &semget_args, retval)); 114 115 case 2: /* semop() */ 116 SCARG(&semop_args, semid) = SCARG(uap, a2); 117 SCARG(&semop_args, sops) = 118 (struct sembuf *)(u_long)SCARG(uap, a3); 119 SCARG(&semop_args, nsops) = SCARG(uap, a4); 120 return (sys_semop(l, &semop_args, retval)); 121 122 case 3: /* semconfig() */ 123 SCARG(&semconfig_args, flag) = SCARG(uap, a2); 124 return (sys_semconfig(l, &semconfig_args, retval)); 125 126 default: 127 return (EINVAL); 128 } 129} 130#endif 131 132#if defined(SYSVSHM) && !defined(_LP64) 133int 134compat_10_sys_shmsys(struct lwp *l, const struct compat_10_sys_shmsys_args *uap, register_t *retval) 135{ 136 /* { 137 syscallarg(int) which; 138 syscallarg(int) a2; 139 syscallarg(int) a3; 140 syscallarg(int) a4; 141 } */ 142 struct sys_shmat_args /* { 143 syscallarg(int) shmid; 144 syscallarg(void *) shmaddr; 145 syscallarg(int) shmflg; 146 } */ shmat_args; 147 struct compat_14_sys_shmctl_args /* { 148 syscallarg(int) shmid; 149 syscallarg(int) cmd; 150 syscallarg(struct shmid14_ds *) buf; 151 } */ shmctl_args; 152 struct sys_shmdt_args /* { 153 syscallarg(void *) shmaddr; 154 } */ shmdt_args; 155 struct sys_shmget_args /* { 156 syscallarg(key_t) key; 157 syscallarg(int) size; 158 syscallarg(int) shmflg; 159 } */ shmget_args; 160 161 switch (SCARG(uap, which)) { 162 case 0: /* shmat() */ 163 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 164 SCARG(&shmat_args, shmaddr) = 165 (void *)(u_long)SCARG(uap, a3); 166 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 167 return (sys_shmat(l, &shmat_args, retval)); 168 169 case 1: /* shmctl() */ 170 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 171 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 172 SCARG(&shmctl_args, buf) = 173 (struct shmid_ds14 *)(u_long)SCARG(uap, a4); 174 return (compat_14_sys_shmctl(l, &shmctl_args, retval)); 175 176 case 2: /* shmdt() */ 177 SCARG(&shmdt_args, shmaddr) = 178 (void *)(u_long)SCARG(uap, a2); 179 return (sys_shmdt(l, &shmdt_args, retval)); 180 181 case 3: /* shmget() */ 182 SCARG(&shmget_args, key) = SCARG(uap, a2); 183 SCARG(&shmget_args, size) = SCARG(uap, a3); 184 SCARG(&shmget_args, shmflg) = SCARG(uap, a4); 185 return (sys_shmget(l, &shmget_args, retval)); 186 187 default: 188 return (EINVAL); 189 } 190} 191#endif 192 193#if defined(SYSVMSG) && !defined(_LP64) 194int 195compat_10_sys_msgsys(struct lwp *l, const struct compat_10_sys_msgsys_args *uap, register_t *retval) 196{ 197 /* { 198 syscallarg(int) which; 199 syscallarg(int) a2; 200 syscallarg(int) a3; 201 syscallarg(int) a4; 202 syscallarg(int) a5; 203 syscallarg(int) a6; 204 } */ 205 struct compat_14_sys_msgctl_args /* { 206 syscallarg(int) msqid; 207 syscallarg(int) cmd; 208 syscallarg(struct msqid14_ds *) buf; 209 } */ msgctl_args; 210 struct sys_msgget_args /* { 211 syscallarg(key_t) key; 212 syscallarg(int) msgflg; 213 } */ msgget_args; 214 struct sys_msgsnd_args /* { 215 syscallarg(int) msqid; 216 syscallarg(void *) msgp; 217 syscallarg(size_t) msgsz; 218 syscallarg(int) msgflg; 219 } */ msgsnd_args; 220 struct sys_msgrcv_args /* { 221 syscallarg(int) msqid; 222 syscallarg(void *) msgp; 223 syscallarg(size_t) msgsz; 224 syscallarg(long) msgtyp; 225 syscallarg(int) msgflg; 226 } */ msgrcv_args; 227 228 switch (SCARG(uap, which)) { 229 case 0: /* msgctl()*/ 230 SCARG(&msgctl_args, msqid) = SCARG(uap, a2); 231 SCARG(&msgctl_args, cmd) = SCARG(uap, a3); 232 SCARG(&msgctl_args, buf) = 233 (struct msqid_ds14 *)(u_long)SCARG(uap, a4); 234 return (compat_14_sys_msgctl(l, &msgctl_args, retval)); 235 236 case 1: /* msgget() */ 237 SCARG(&msgget_args, key) = SCARG(uap, a2); 238 SCARG(&msgget_args, msgflg) = SCARG(uap, a3); 239 return (sys_msgget(l, &msgget_args, retval)); 240 241 case 2: /* msgsnd() */ 242 SCARG(&msgsnd_args, msqid) = SCARG(uap, a2); 243 SCARG(&msgsnd_args, msgp) = 244 (void *)(u_long)SCARG(uap, a3); 245 SCARG(&msgsnd_args, msgsz) = SCARG(uap, a4); 246 SCARG(&msgsnd_args, msgflg) = SCARG(uap, a5); 247 return (sys_msgsnd(l, &msgsnd_args, retval)); 248 249 case 3: /* msgrcv() */ 250 SCARG(&msgrcv_args, msqid) = SCARG(uap, a2); 251 SCARG(&msgrcv_args, msgp) = 252 (void *)(u_long)SCARG(uap, a3); 253 SCARG(&msgrcv_args, msgsz) = SCARG(uap, a4); 254 SCARG(&msgrcv_args, msgtyp) = SCARG(uap, a5); 255 SCARG(&msgrcv_args, msgflg) = SCARG(uap, a6); 256 return (sys_msgrcv(l, &msgrcv_args, retval)); 257 258 default: 259 return (EINVAL); 260 } 261} 262#endif 263