kern_ipc_10.c revision 1.23.18.1
1 /* $NetBSD: kern_ipc_10.c,v 1.23.18.1 2008/12/13 01:13:47 haad 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 1.23.18.1 2008/12/13 01:13:47 haad 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 46 #include <sys/mount.h> 47 #include <sys/syscallargs.h> 48 49 #include <compat/common/compat_util.h> 50 #include <compat/sys/shm.h> 51 #include <compat/sys/sem.h> 52 53 #if defined(SYSVSEM) && !defined(_LP64) 54 int 55 compat_10_sys_semsys(struct lwp *l, const struct compat_10_sys_semsys_args *uap, register_t *retval) 56 { 57 /* { 58 syscallarg(int) which; 59 syscallarg(int) a2; 60 syscallarg(int) a3; 61 syscallarg(int) a4; 62 syscallarg(int) a5; 63 } */ 64 struct sys_semget_args /* { 65 syscallarg(key_t) key; 66 syscallarg(int) nsems; 67 syscallarg(int) semflg; 68 } */ semget_args; 69 struct sys_semop_args /* { 70 syscallarg(int) semid; 71 syscallarg(struct sembuf *) sops; 72 syscallarg(u_int) nsops; 73 } */ semop_args; 74 struct sys_semconfig_args /* { 75 syscallarg(int) flag; 76 } */ semconfig_args; 77 struct semid_ds sembuf; 78 struct semid_ds14 osembuf; 79 void *pass_arg; 80 int a5 = SCARG(uap, a5); 81 int error; 82 83 switch (SCARG(uap, which)) { 84 case 0: /* __semctl() */ 85 #define semctl_semid SCARG(uap, a2) 86 #define semctl_semnum SCARG(uap, a3) 87 #define semctl_cmd SCARG(uap, a4) 88 #define semctl_arg ((union __semun *)&a5) 89 pass_arg = get_semctl_arg(semctl_cmd, &sembuf, semctl_arg); 90 if (semctl_cmd == IPC_SET) { 91 error = copyin(semctl_arg->buf, &osembuf, sizeof osembuf); 92 if (error != 0) 93 return error; 94 semid_ds14_to_native(&osembuf, &sembuf); 95 } 96 error = semctl1(l, semctl_semid, semctl_semnum, semctl_cmd, 97 pass_arg, retval); 98 if (error == 0 && semctl_cmd == IPC_STAT) { 99 native_to_semid_ds14(&sembuf, &osembuf); 100 error = copyout(&osembuf, semctl_arg->buf, sizeof(osembuf)); 101 } 102 return error; 103 #undef semctl_semid 104 #undef semctl_semnum 105 #undef semctl_cmd 106 #undef semctl_arg 107 108 case 1: /* semget() */ 109 SCARG(&semget_args, key) = SCARG(uap, a2); 110 SCARG(&semget_args, nsems) = SCARG(uap, a3); 111 SCARG(&semget_args, semflg) = SCARG(uap, a4); 112 return (sys_semget(l, &semget_args, retval)); 113 114 case 2: /* semop() */ 115 SCARG(&semop_args, semid) = SCARG(uap, a2); 116 SCARG(&semop_args, sops) = 117 (struct sembuf *)(u_long)SCARG(uap, a3); 118 SCARG(&semop_args, nsops) = SCARG(uap, a4); 119 return (sys_semop(l, &semop_args, retval)); 120 121 case 3: /* semconfig() */ 122 SCARG(&semconfig_args, flag) = SCARG(uap, a2); 123 return (sys_semconfig(l, &semconfig_args, retval)); 124 125 default: 126 return (EINVAL); 127 } 128 } 129 #endif 130 131 #if defined(SYSVSHM) && !defined(_LP64) 132 int 133 compat_10_sys_shmsys(struct lwp *l, const struct compat_10_sys_shmsys_args *uap, register_t *retval) 134 { 135 /* { 136 syscallarg(int) which; 137 syscallarg(int) a2; 138 syscallarg(int) a3; 139 syscallarg(int) a4; 140 } */ 141 struct sys_shmat_args /* { 142 syscallarg(int) shmid; 143 syscallarg(void *) shmaddr; 144 syscallarg(int) shmflg; 145 } */ shmat_args; 146 struct compat_14_sys_shmctl_args /* { 147 syscallarg(int) shmid; 148 syscallarg(int) cmd; 149 syscallarg(struct shmid14_ds *) buf; 150 } */ shmctl_args; 151 struct sys_shmdt_args /* { 152 syscallarg(void *) shmaddr; 153 } */ shmdt_args; 154 struct sys_shmget_args /* { 155 syscallarg(key_t) key; 156 syscallarg(int) size; 157 syscallarg(int) shmflg; 158 } */ shmget_args; 159 160 switch (SCARG(uap, which)) { 161 case 0: /* shmat() */ 162 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 163 SCARG(&shmat_args, shmaddr) = 164 (void *)(u_long)SCARG(uap, a3); 165 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 166 return (sys_shmat(l, &shmat_args, retval)); 167 168 case 1: /* shmctl() */ 169 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 170 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 171 SCARG(&shmctl_args, buf) = 172 (struct shmid_ds14 *)(u_long)SCARG(uap, a4); 173 return (compat_14_sys_shmctl(l, &shmctl_args, retval)); 174 175 case 2: /* shmdt() */ 176 SCARG(&shmdt_args, shmaddr) = 177 (void *)(u_long)SCARG(uap, a2); 178 return (sys_shmdt(l, &shmdt_args, retval)); 179 180 case 3: /* shmget() */ 181 SCARG(&shmget_args, key) = SCARG(uap, a2); 182 SCARG(&shmget_args, size) = SCARG(uap, a3); 183 SCARG(&shmget_args, shmflg) = SCARG(uap, a4); 184 return (sys_shmget(l, &shmget_args, retval)); 185 186 default: 187 return (EINVAL); 188 } 189 } 190 #endif 191 192 #if defined(SYSVMSG) && !defined(_LP64) 193 int 194 compat_10_sys_msgsys(struct lwp *l, const struct compat_10_sys_msgsys_args *uap, register_t *retval) 195 { 196 /* { 197 syscallarg(int) which; 198 syscallarg(int) a2; 199 syscallarg(int) a3; 200 syscallarg(int) a4; 201 syscallarg(int) a5; 202 syscallarg(int) a6; 203 } */ 204 struct compat_14_sys_msgctl_args /* { 205 syscallarg(int) msqid; 206 syscallarg(int) cmd; 207 syscallarg(struct msqid14_ds *) buf; 208 } */ msgctl_args; 209 struct sys_msgget_args /* { 210 syscallarg(key_t) key; 211 syscallarg(int) msgflg; 212 } */ msgget_args; 213 struct sys_msgsnd_args /* { 214 syscallarg(int) msqid; 215 syscallarg(void *) msgp; 216 syscallarg(size_t) msgsz; 217 syscallarg(int) msgflg; 218 } */ msgsnd_args; 219 struct sys_msgrcv_args /* { 220 syscallarg(int) msqid; 221 syscallarg(void *) msgp; 222 syscallarg(size_t) msgsz; 223 syscallarg(long) msgtyp; 224 syscallarg(int) msgflg; 225 } */ msgrcv_args; 226 227 switch (SCARG(uap, which)) { 228 case 0: /* msgctl()*/ 229 SCARG(&msgctl_args, msqid) = SCARG(uap, a2); 230 SCARG(&msgctl_args, cmd) = SCARG(uap, a3); 231 SCARG(&msgctl_args, buf) = 232 (struct msqid_ds14 *)(u_long)SCARG(uap, a4); 233 return (compat_14_sys_msgctl(l, &msgctl_args, retval)); 234 235 case 1: /* msgget() */ 236 SCARG(&msgget_args, key) = SCARG(uap, a2); 237 SCARG(&msgget_args, msgflg) = SCARG(uap, a3); 238 return (sys_msgget(l, &msgget_args, retval)); 239 240 case 2: /* msgsnd() */ 241 SCARG(&msgsnd_args, msqid) = SCARG(uap, a2); 242 SCARG(&msgsnd_args, msgp) = 243 (void *)(u_long)SCARG(uap, a3); 244 SCARG(&msgsnd_args, msgsz) = SCARG(uap, a4); 245 SCARG(&msgsnd_args, msgflg) = SCARG(uap, a5); 246 return (sys_msgsnd(l, &msgsnd_args, retval)); 247 248 case 3: /* msgrcv() */ 249 SCARG(&msgrcv_args, msqid) = SCARG(uap, a2); 250 SCARG(&msgrcv_args, msgp) = 251 (void *)(u_long)SCARG(uap, a3); 252 SCARG(&msgrcv_args, msgsz) = SCARG(uap, a4); 253 SCARG(&msgrcv_args, msgtyp) = SCARG(uap, a5); 254 SCARG(&msgrcv_args, msgflg) = SCARG(uap, a6); 255 return (sys_msgrcv(l, &msgrcv_args, retval)); 256 257 default: 258 return (EINVAL); 259 } 260 } 261 #endif 262
Indexes created Tue Sep 30 17:09:57 GMT 2025