kern_ipc_10.c revision 1.21.16.1
1 /* $NetBSD: kern_ipc_10.c,v 1.21.16.1 2007/12/26 19:48:44 ad 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 1.21.16.1 2007/12/26 19:48:44 ad 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 44 #include <sys/mount.h> 45 #include <sys/syscallargs.h> 46 47 #include <compat/common/compat_util.h> 48 #include <compat/sys/shm.h> 49 #include <compat/sys/sem.h> 50 51 #if defined(SYSVSEM) && !defined(_LP64) 52 int 53 compat_10_sys_semsys(struct lwp *l, const struct compat_10_sys_semsys_args *uap, register_t *retval) 54 { 55 /* { 56 syscallarg(int) which; 57 syscallarg(int) a2; 58 syscallarg(int) a3; 59 syscallarg(int) a4; 60 syscallarg(int) a5; 61 } */ 62 struct sys_semget_args /* { 63 syscallarg(key_t) key; 64 syscallarg(int) nsems; 65 syscallarg(int) semflg; 66 } */ semget_args; 67 struct sys_semop_args /* { 68 syscallarg(int) semid; 69 syscallarg(struct sembuf *) sops; 70 syscallarg(u_int) nsops; 71 } */ semop_args; 72 struct sys_semconfig_args /* { 73 syscallarg(int) flag; 74 } */ semconfig_args; 75 struct semid_ds sembuf; 76 struct semid_ds14 osembuf; 77 void *pass_arg; 78 int a5 = SCARG(uap, a5); 79 int error; 80 81 switch (SCARG(uap, which)) { 82 case 0: /* __semctl() */ 83 #define semctl_semid SCARG(uap, a2) 84 #define semctl_semnum SCARG(uap, a3) 85 #define semctl_cmd SCARG(uap, a4) 86 #define semctl_arg ((union __semun *)&a5) 87 pass_arg = get_semctl_arg(semctl_cmd, &sembuf, semctl_arg); 88 if (semctl_cmd == IPC_SET) { 89 error = copyin(semctl_arg->buf, &osembuf, sizeof osembuf); 90 if (error != 0) 91 return error; 92 semid_ds14_to_native(&osembuf, &sembuf); 93 } 94 error = semctl1(l, semctl_semid, semctl_semnum, semctl_cmd, 95 pass_arg, retval); 96 if (error == 0 && semctl_cmd == IPC_STAT) { 97 native_to_semid_ds14(&sembuf, &osembuf); 98 error = copyout(&osembuf, semctl_arg->buf, sizeof(osembuf)); 99 } 100 return error; 101 #undef semctl_semid 102 #undef semctl_semnum 103 #undef semctl_cmd 104 #undef semctl_arg 105 106 case 1: /* semget() */ 107 SCARG(&semget_args, key) = SCARG(uap, a2); 108 SCARG(&semget_args, nsems) = SCARG(uap, a3); 109 SCARG(&semget_args, semflg) = SCARG(uap, a4); 110 return (sys_semget(l, &semget_args, retval)); 111 112 case 2: /* semop() */ 113 SCARG(&semop_args, semid) = SCARG(uap, a2); 114 SCARG(&semop_args, sops) = 115 (struct sembuf *)(u_long)SCARG(uap, a3); 116 SCARG(&semop_args, nsops) = SCARG(uap, a4); 117 return (sys_semop(l, &semop_args, retval)); 118 119 case 3: /* semconfig() */ 120 SCARG(&semconfig_args, flag) = SCARG(uap, a2); 121 return (sys_semconfig(l, &semconfig_args, retval)); 122 123 default: 124 return (EINVAL); 125 } 126 } 127 #endif 128 129 #if defined(SYSVSHM) && !defined(_LP64) 130 int 131 compat_10_sys_shmsys(struct lwp *l, const struct compat_10_sys_shmsys_args *uap, register_t *retval) 132 { 133 /* { 134 syscallarg(int) which; 135 syscallarg(int) a2; 136 syscallarg(int) a3; 137 syscallarg(int) a4; 138 } */ 139 struct sys_shmat_args /* { 140 syscallarg(int) shmid; 141 syscallarg(void *) shmaddr; 142 syscallarg(int) shmflg; 143 } */ shmat_args; 144 struct compat_14_sys_shmctl_args /* { 145 syscallarg(int) shmid; 146 syscallarg(int) cmd; 147 syscallarg(struct shmid14_ds *) buf; 148 } */ shmctl_args; 149 struct sys_shmdt_args /* { 150 syscallarg(void *) shmaddr; 151 } */ shmdt_args; 152 struct sys_shmget_args /* { 153 syscallarg(key_t) key; 154 syscallarg(int) size; 155 syscallarg(int) shmflg; 156 } */ shmget_args; 157 158 switch (SCARG(uap, which)) { 159 case 0: /* shmat() */ 160 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 161 SCARG(&shmat_args, shmaddr) = 162 (void *)(u_long)SCARG(uap, a3); 163 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 164 return (sys_shmat(l, &shmat_args, retval)); 165 166 case 1: /* shmctl() */ 167 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 168 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 169 SCARG(&shmctl_args, buf) = 170 (struct shmid_ds14 *)(u_long)SCARG(uap, a4); 171 return (compat_14_sys_shmctl(l, &shmctl_args, retval)); 172 173 case 2: /* shmdt() */ 174 SCARG(&shmdt_args, shmaddr) = 175 (void *)(u_long)SCARG(uap, a2); 176 return (sys_shmdt(l, &shmdt_args, retval)); 177 178 case 3: /* shmget() */ 179 SCARG(&shmget_args, key) = SCARG(uap, a2); 180 SCARG(&shmget_args, size) = SCARG(uap, a3); 181 SCARG(&shmget_args, shmflg) = SCARG(uap, a4); 182 return (sys_shmget(l, &shmget_args, retval)); 183 184 default: 185 return (EINVAL); 186 } 187 } 188 #endif 189 190 #if defined(SYSVMSG) && !defined(_LP64) 191 int 192 compat_10_sys_msgsys(struct lwp *l, const struct compat_10_sys_msgsys_args *uap, register_t *retval) 193 { 194 /* { 195 syscallarg(int) which; 196 syscallarg(int) a2; 197 syscallarg(int) a3; 198 syscallarg(int) a4; 199 syscallarg(int) a5; 200 syscallarg(int) a6; 201 } */ 202 struct compat_14_sys_msgctl_args /* { 203 syscallarg(int) msqid; 204 syscallarg(int) cmd; 205 syscallarg(struct msqid14_ds *) buf; 206 } */ msgctl_args; 207 struct sys_msgget_args /* { 208 syscallarg(key_t) key; 209 syscallarg(int) msgflg; 210 } */ msgget_args; 211 struct sys_msgsnd_args /* { 212 syscallarg(int) msqid; 213 syscallarg(void *) msgp; 214 syscallarg(size_t) msgsz; 215 syscallarg(int) msgflg; 216 } */ msgsnd_args; 217 struct sys_msgrcv_args /* { 218 syscallarg(int) msqid; 219 syscallarg(void *) msgp; 220 syscallarg(size_t) msgsz; 221 syscallarg(long) msgtyp; 222 syscallarg(int) msgflg; 223 } */ msgrcv_args; 224 225 switch (SCARG(uap, which)) { 226 case 0: /* msgctl()*/ 227 SCARG(&msgctl_args, msqid) = SCARG(uap, a2); 228 SCARG(&msgctl_args, cmd) = SCARG(uap, a3); 229 SCARG(&msgctl_args, buf) = 230 (struct msqid_ds14 *)(u_long)SCARG(uap, a4); 231 return (compat_14_sys_msgctl(l, &msgctl_args, retval)); 232 233 case 1: /* msgget() */ 234 SCARG(&msgget_args, key) = SCARG(uap, a2); 235 SCARG(&msgget_args, msgflg) = SCARG(uap, a3); 236 return (sys_msgget(l, &msgget_args, retval)); 237 238 case 2: /* msgsnd() */ 239 SCARG(&msgsnd_args, msqid) = SCARG(uap, a2); 240 SCARG(&msgsnd_args, msgp) = 241 (void *)(u_long)SCARG(uap, a3); 242 SCARG(&msgsnd_args, msgsz) = SCARG(uap, a4); 243 SCARG(&msgsnd_args, msgflg) = SCARG(uap, a5); 244 return (sys_msgsnd(l, &msgsnd_args, retval)); 245 246 case 3: /* msgrcv() */ 247 SCARG(&msgrcv_args, msqid) = SCARG(uap, a2); 248 SCARG(&msgrcv_args, msgp) = 249 (void *)(u_long)SCARG(uap, a3); 250 SCARG(&msgrcv_args, msgsz) = SCARG(uap, a4); 251 SCARG(&msgrcv_args, msgtyp) = SCARG(uap, a5); 252 SCARG(&msgrcv_args, msgflg) = SCARG(uap, a6); 253 return (sys_msgrcv(l, &msgrcv_args, retval)); 254 255 default: 256 return (EINVAL); 257 } 258 } 259 #endif 260
Indexes created Tue Sep 30 17:09:57 GMT 2025