1 /* $NetBSD: kern_ipc_10.c,v 1.14 2002/03/16 20:43:49 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 1.14 2002/03/16 20:43:49 christos Exp $"); 35 36 #include "opt_sysv.h" 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/kernel.h> 41 #include <sys/proc.h> 42 #include <sys/sem.h> 43 #include <sys/malloc.h> 44 45 #include <sys/mount.h> 46 #include <sys/syscallargs.h> 47 48 #include <compat/common/compat_util.h> 49 50 #ifdef SYSVSEM 51 int 52 compat_10_sys_semsys(p, v, retval) 53 struct proc *p; 54 void *v; 55 register_t *retval; 56 { 57 struct compat_10_sys_semsys_args /* { 58 syscallarg(int) which; 59 syscallarg(int) a2; 60 syscallarg(int) a3; 61 syscallarg(int) a4; 62 syscallarg(int) a5; 63 } */ *uap = v; 64 struct compat_14_sys___semctl_args /* { 65 syscallarg(int) semid; 66 syscallarg(int) semnum; 67 syscallarg(int) cmd; 68 syscallarg(union __semun *) arg; 69 } */ __semctl_args; 70 struct sys_semget_args /* { 71 syscallarg(key_t) key; 72 syscallarg(int) nsems; 73 syscallarg(int) semflg; 74 } */ semget_args; 75 struct sys_semop_args /* { 76 syscallarg(int) semid; 77 syscallarg(struct sembuf *) sops; 78 syscallarg(u_int) nsops; 79 } */ semop_args; 80 struct sys_semconfig_args /* { 81 syscallarg(int) flag; 82 } */ semconfig_args; 83 caddr_t sg = stackgap_init(p, 0); 84 85 switch (SCARG(uap, which)) { 86 case 0: /* __semctl() */ 87 SCARG(&__semctl_args, semid) = SCARG(uap, a2); 88 SCARG(&__semctl_args, semnum) = SCARG(uap, a3); 89 SCARG(&__semctl_args, cmd) = SCARG(uap, a4); 90 SCARG(&__semctl_args, arg) = stackgap_alloc(p, &sg, 91 sizeof(union semun *)); 92 copyout(&SCARG(uap, a5), SCARG(&__semctl_args, arg), 93 sizeof(union __semun)); 94 return (compat_14_sys___semctl(p, &__semctl_args, retval)); 95 96 case 1: /* semget() */ 97 SCARG(&semget_args, key) = SCARG(uap, a2); 98 SCARG(&semget_args, nsems) = SCARG(uap, a3); 99 SCARG(&semget_args, semflg) = SCARG(uap, a4); 100 return (sys_semget(p, &semget_args, retval)); 101 102 case 2: /* semop() */ 103 SCARG(&semop_args, semid) = SCARG(uap, a2); 104 SCARG(&semop_args, sops) = 105 (struct sembuf *)(u_long)SCARG(uap, a3); 106 SCARG(&semop_args, nsops) = SCARG(uap, a4); 107 return (sys_semop(p, &semop_args, retval)); 108 109 case 3: /* semconfig() */ 110 SCARG(&semconfig_args, flag) = SCARG(uap, a2); 111 return (sys_semconfig(p, &semconfig_args, retval)); 112 113 default: 114 return (EINVAL); 115 } 116 } 117 #endif 118 119 #ifdef SYSVSHM 120 int 121 compat_10_sys_shmsys(p, v, retval) 122 struct proc *p; 123 void *v; 124 register_t *retval; 125 { 126 struct compat_10_sys_shmsys_args /* { 127 syscallarg(int) which; 128 syscallarg(int) a2; 129 syscallarg(int) a3; 130 syscallarg(int) a4; 131 } */ *uap = v; 132 struct sys_shmat_args /* { 133 syscallarg(int) shmid; 134 syscallarg(void *) shmaddr; 135 syscallarg(int) shmflg; 136 } */ shmat_args; 137 struct compat_14_sys_shmctl_args /* { 138 syscallarg(int) shmid; 139 syscallarg(int) cmd; 140 syscallarg(struct shmid14_ds *) buf; 141 } */ shmctl_args; 142 struct sys_shmdt_args /* { 143 syscallarg(void *) shmaddr; 144 } */ shmdt_args; 145 struct sys_shmget_args /* { 146 syscallarg(key_t) key; 147 syscallarg(int) size; 148 syscallarg(int) shmflg; 149 } */ shmget_args; 150 151 switch (SCARG(uap, which)) { 152 case 0: /* shmat() */ 153 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 154 SCARG(&shmat_args, shmaddr) = 155 (void *)(u_long)SCARG(uap, a3); 156 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 157 return (sys_shmat(p, &shmat_args, retval)); 158 159 case 1: /* shmctl() */ 160 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 161 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 162 SCARG(&shmctl_args, buf) = 163 (struct shmid_ds14 *)(u_long)SCARG(uap, a4); 164 return (compat_14_sys_shmctl(p, &shmctl_args, retval)); 165 166 case 2: /* shmdt() */ 167 SCARG(&shmdt_args, shmaddr) = 168 (void *)(u_long)SCARG(uap, a2); 169 return (sys_shmdt(p, &shmdt_args, retval)); 170 171 case 3: /* shmget() */ 172 SCARG(&shmget_args, key) = SCARG(uap, a2); 173 SCARG(&shmget_args, size) = SCARG(uap, a3); 174 SCARG(&shmget_args, shmflg) = SCARG(uap, a4); 175 return (sys_shmget(p, &shmget_args, retval)); 176 177 default: 178 return (EINVAL); 179 } 180 } 181 #endif 182 183 #ifdef SYSVMSG 184 int 185 compat_10_sys_msgsys(p, v, retval) 186 struct proc *p; 187 void *v; 188 register_t *retval; 189 { 190 struct compat_10_sys_msgsys_args /* { 191 syscallarg(int) which; 192 syscallarg(int) a2; 193 syscallarg(int) a3; 194 syscallarg(int) a4; 195 syscallarg(int) a5; 196 syscallarg(int) a6; 197 } */ *uap = v; 198 struct compat_14_sys_msgctl_args /* { 199 syscallarg(int) msqid; 200 syscallarg(int) cmd; 201 syscallarg(struct msqid14_ds *) buf; 202 } */ msgctl_args; 203 struct sys_msgget_args /* { 204 syscallarg(key_t) key; 205 syscallarg(int) msgflg; 206 } */ msgget_args; 207 struct sys_msgsnd_args /* { 208 syscallarg(int) msqid; 209 syscallarg(void *) msgp; 210 syscallarg(size_t) msgsz; 211 syscallarg(int) msgflg; 212 } */ msgsnd_args; 213 struct sys_msgrcv_args /* { 214 syscallarg(int) msqid; 215 syscallarg(void *) msgp; 216 syscallarg(size_t) msgsz; 217 syscallarg(long) msgtyp; 218 syscallarg(int) msgflg; 219 } */ msgrcv_args; 220 221 switch (SCARG(uap, which)) { 222 case 0: /* msgctl()*/ 223 SCARG(&msgctl_args, msqid) = SCARG(uap, a2); 224 SCARG(&msgctl_args, cmd) = SCARG(uap, a3); 225 SCARG(&msgctl_args, buf) = 226 (struct msqid_ds14 *)(u_long)SCARG(uap, a4); 227 return (compat_14_sys_msgctl(p, &msgctl_args, retval)); 228 229 case 1: /* msgget() */ 230 SCARG(&msgget_args, key) = SCARG(uap, a2); 231 SCARG(&msgget_args, msgflg) = SCARG(uap, a3); 232 return (sys_msgget(p, &msgget_args, retval)); 233 234 case 2: /* msgsnd() */ 235 SCARG(&msgsnd_args, msqid) = SCARG(uap, a2); 236 SCARG(&msgsnd_args, msgp) = 237 (void *)(u_long)SCARG(uap, a3); 238 SCARG(&msgsnd_args, msgsz) = SCARG(uap, a4); 239 SCARG(&msgsnd_args, msgflg) = SCARG(uap, a5); 240 return (sys_msgsnd(p, &msgsnd_args, retval)); 241 242 case 3: /* msgrcv() */ 243 SCARG(&msgrcv_args, msqid) = SCARG(uap, a2); 244 SCARG(&msgrcv_args, msgp) = 245 (void *)(u_long)SCARG(uap, a3); 246 SCARG(&msgrcv_args, msgsz) = SCARG(uap, a4); 247 SCARG(&msgrcv_args, msgtyp) = SCARG(uap, a5); 248 SCARG(&msgrcv_args, msgflg) = SCARG(uap, a6); 249 return (sys_msgrcv(p, &msgrcv_args, retval)); 250 251 default: 252 return (EINVAL); 253 } 254 } 255 #endif 256