kern_ipc_10.c revision 1.23.8.1
1 /* $NetBSD: kern_ipc_10.c,v 1.23.8.1 2008/03/29 20:46:57 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 1.23.8.1 2008/03/29 20:46:57 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/shm.h> 44 45 #include <sys/mount.h> 46 #include <sys/syscallargs.h> 47 48 #include <compat/common/compat_util.h> 49 #include <compat/sys/shm.h> 50 #include <compat/sys/sem.h> 51 52 #if defined(SYSVSEM) && !defined(_LP64) 53 int 54 compat_10_sys_semsys(struct lwp *l, const struct compat_10_sys_semsys_args *uap, register_t *retval) 55 { 56 /* { 57 syscallarg(int) which; 58 syscallarg(int) a2; 59 syscallarg(int) a3; 60 syscallarg(int) a4; 61 syscallarg(int) a5; 62 } */ 63 struct sys_semget_args /* { 64 syscallarg(key_t) key; 65 syscallarg(int) nsems; 66 syscallarg(int) semflg; 67 } */ semget_args; 68 struct sys_semop_args /* { 69 syscallarg(int) semid; 70 syscallarg(struct sembuf *) sops; 71 syscallarg(u_int) nsops; 72 } */ semop_args; 73 struct sys_semconfig_args /* { 74 syscallarg(int) flag; 75 } */ semconfig_args; 76 struct semid_ds sembuf; 77 struct semid_ds14 osembuf; 78 void *pass_arg; 79 int a5 = SCARG(uap, a5); 80 int error; 81 82 switch (SCARG(uap, which)) { 83 case 0: /* __semctl() */ 84 #define semctl_semid SCARG(uap, a2) 85 #define semctl_semnum SCARG(uap, a3) 86 #define semctl_cmd SCARG(uap, a4) 87 #define semctl_arg ((union __semun *)&a5) 88 pass_arg = get_semctl_arg(semctl_cmd, &sembuf, semctl_arg); 89 if (semctl_cmd == IPC_SET) { 90 error = copyin(semctl_arg->buf, &osembuf, sizeof osembuf); 91 if (error != 0) 92 return error; 93 semid_ds14_to_native(&osembuf, &sembuf); 94 } 95 error = semctl1(l, semctl_semid, semctl_semnum, semctl_cmd, 96 pass_arg, retval); 97 if (error == 0 && semctl_cmd == IPC_STAT) { 98 native_to_semid_ds14(&sembuf, &osembuf); 99 error = copyout(&osembuf, semctl_arg->buf, sizeof(osembuf)); 100 } 101 return error; 102 #undef semctl_semid 103 #undef semctl_semnum 104 #undef semctl_cmd 105 #undef semctl_arg 106 107 case 1: /* semget() */ 108 SCARG(&semget_args, key) = SCARG(uap, a2); 109 SCARG(&semget_args, nsems) = SCARG(uap, a3); 110 SCARG(&semget_args, semflg) = SCARG(uap, a4); 111 return (sys_semget(l, &semget_args, retval)); 112 113 case 2: /* semop() */ 114 SCARG(&semop_args, semid) = SCARG(uap, a2); 115 SCARG(&semop_args, sops) = 116 (struct sembuf *)(u_long)SCARG(uap, a3); 117 SCARG(&semop_args, nsops) = SCARG(uap, a4); 118 return (sys_semop(l, &semop_args, retval)); 119 120 case 3: /* semconfig() */ 121 SCARG(&semconfig_args, flag) = SCARG(uap, a2); 122 return (sys_semconfig(l, &semconfig_args, retval)); 123 124 default: 125 return (EINVAL); 126 } 127 } 128 #endif 129 130 #if defined(SYSVSHM) && !defined(_LP64) 131 int 132 compat_10_sys_shmsys(struct lwp *l, const struct compat_10_sys_shmsys_args *uap, register_t *retval) 133 { 134 /* { 135 syscallarg(int) which; 136 syscallarg(int) a2; 137 syscallarg(int) a3; 138 syscallarg(int) a4; 139 } */ 140 struct sys_shmat_args /* { 141 syscallarg(int) shmid; 142 syscallarg(void *) shmaddr; 143 syscallarg(int) shmflg; 144 } */ shmat_args; 145 struct compat_14_sys_shmctl_args /* { 146 syscallarg(int) shmid; 147 syscallarg(int) cmd; 148 syscallarg(struct shmid14_ds *) buf; 149 } */ shmctl_args; 150 struct sys_shmdt_args /* { 151 syscallarg(void *) shmaddr; 152 } */ shmdt_args; 153 struct sys_shmget_args /* { 154 syscallarg(key_t) key; 155 syscallarg(int) size; 156 syscallarg(int) shmflg; 157 } */ shmget_args; 158 159 switch (SCARG(uap, which)) { 160 case 0: /* shmat() */ 161 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 162 SCARG(&shmat_args, shmaddr) = 163 (void *)(u_long)SCARG(uap, a3); 164 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 165 return (sys_shmat(l, &shmat_args, retval)); 166 167 case 1: /* shmctl() */ 168 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 169 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 170 SCARG(&shmctl_args, buf) = 171 (struct shmid_ds14 *)(u_long)SCARG(uap, a4); 172 return (compat_14_sys_shmctl(l, &shmctl_args, retval)); 173 174 case 2: /* shmdt() */ 175 SCARG(&shmdt_args, shmaddr) = 176 (void *)(u_long)SCARG(uap, a2); 177 return (sys_shmdt(l, &shmdt_args, retval)); 178 179 case 3: /* shmget() */ 180 SCARG(&shmget_args, key) = SCARG(uap, a2); 181 SCARG(&shmget_args, size) = SCARG(uap, a3); 182 SCARG(&shmget_args, shmflg) = SCARG(uap, a4); 183 return (sys_shmget(l, &shmget_args, retval)); 184 185 default: 186 return (EINVAL); 187 } 188 } 189 #endif 190 191 #if defined(SYSVMSG) && !defined(_LP64) 192 int 193 compat_10_sys_msgsys(struct lwp *l, const struct compat_10_sys_msgsys_args *uap, register_t *retval) 194 { 195 /* { 196 syscallarg(int) which; 197 syscallarg(int) a2; 198 syscallarg(int) a3; 199 syscallarg(int) a4; 200 syscallarg(int) a5; 201 syscallarg(int) a6; 202 } */ 203 struct compat_14_sys_msgctl_args /* { 204 syscallarg(int) msqid; 205 syscallarg(int) cmd; 206 syscallarg(struct msqid14_ds *) buf; 207 } */ msgctl_args; 208 struct sys_msgget_args /* { 209 syscallarg(key_t) key; 210 syscallarg(int) msgflg; 211 } */ msgget_args; 212 struct sys_msgsnd_args /* { 213 syscallarg(int) msqid; 214 syscallarg(void *) msgp; 215 syscallarg(size_t) msgsz; 216 syscallarg(int) msgflg; 217 } */ msgsnd_args; 218 struct sys_msgrcv_args /* { 219 syscallarg(int) msqid; 220 syscallarg(void *) msgp; 221 syscallarg(size_t) msgsz; 222 syscallarg(long) msgtyp; 223 syscallarg(int) msgflg; 224 } */ msgrcv_args; 225 226 switch (SCARG(uap, which)) { 227 case 0: /* msgctl()*/ 228 SCARG(&msgctl_args, msqid) = SCARG(uap, a2); 229 SCARG(&msgctl_args, cmd) = SCARG(uap, a3); 230 SCARG(&msgctl_args, buf) = 231 (struct msqid_ds14 *)(u_long)SCARG(uap, a4); 232 return (compat_14_sys_msgctl(l, &msgctl_args, retval)); 233 234 case 1: /* msgget() */ 235 SCARG(&msgget_args, key) = SCARG(uap, a2); 236 SCARG(&msgget_args, msgflg) = SCARG(uap, a3); 237 return (sys_msgget(l, &msgget_args, retval)); 238 239 case 2: /* msgsnd() */ 240 SCARG(&msgsnd_args, msqid) = SCARG(uap, a2); 241 SCARG(&msgsnd_args, msgp) = 242 (void *)(u_long)SCARG(uap, a3); 243 SCARG(&msgsnd_args, msgsz) = SCARG(uap, a4); 244 SCARG(&msgsnd_args, msgflg) = SCARG(uap, a5); 245 return (sys_msgsnd(l, &msgsnd_args, retval)); 246 247 case 3: /* msgrcv() */ 248 SCARG(&msgrcv_args, msqid) = SCARG(uap, a2); 249 SCARG(&msgrcv_args, msgp) = 250 (void *)(u_long)SCARG(uap, a3); 251 SCARG(&msgrcv_args, msgsz) = SCARG(uap, a4); 252 SCARG(&msgrcv_args, msgtyp) = SCARG(uap, a5); 253 SCARG(&msgrcv_args, msgflg) = SCARG(uap, a6); 254 return (sys_msgrcv(l, &msgrcv_args, retval)); 255 256 default: 257 return (EINVAL); 258 } 259 } 260 #endif 261
Indexes created Tue Sep 30 17:09:57 GMT 2025