kern_ipc_10.c revision 1.22
1 /* $NetBSD: kern_ipc_10.c,v 1.22 2007/12/08 18:35:54 dsl 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 1.22 2007/12/08 18:35:54 dsl 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, void *v, register_t *retval) 54 { 55 struct compat_10_sys_semsys_args /* { 56 syscallarg(int) which; 57 syscallarg(int) a2; 58 syscallarg(int) a3; 59 syscallarg(int) a4; 60 syscallarg(int) a5; 61 } */ *uap = v; 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 error; 79 80 switch (SCARG(uap, which)) { 81 case 0: /* __semctl() */ 82 #define semctl_semid SCARG(uap, a2) 83 #define semctl_semnum SCARG(uap, a3) 84 #define semctl_cmd SCARG(uap, a4) 85 #define semctl_arg ((union __semun *)&SCARG(uap, a5)) 86 pass_arg = get_semctl_arg(semctl_cmd, &sembuf, semctl_arg); 87 if (semctl_cmd == IPC_SET) { 88 error = copyin(semctl_arg->buf, &osembuf, sizeof osembuf); 89 if (error != 0) 90 return error; 91 semid_ds14_to_native(&osembuf, &sembuf); 92 } 93 error = semctl1(l, semctl_semid, semctl_semnum, semctl_cmd, 94 pass_arg, retval); 95 if (error == 0 && semctl_cmd == IPC_STAT) { 96 native_to_semid_ds14(&sembuf, &osembuf); 97 error = copyout(&osembuf, semctl_arg->buf, sizeof(osembuf)); 98 } 99 return error; 100 #undef semctl_semid 101 #undef semctl_semnum 102 #undef semctl_cmd 103 #undef semctl_arg 104 105 case 1: /* semget() */ 106 SCARG(&semget_args, key) = SCARG(uap, a2); 107 SCARG(&semget_args, nsems) = SCARG(uap, a3); 108 SCARG(&semget_args, semflg) = SCARG(uap, a4); 109 return (sys_semget(l, &semget_args, retval)); 110 111 case 2: /* semop() */ 112 SCARG(&semop_args, semid) = SCARG(uap, a2); 113 SCARG(&semop_args, sops) = 114 (struct sembuf *)(u_long)SCARG(uap, a3); 115 SCARG(&semop_args, nsops) = SCARG(uap, a4); 116 return (sys_semop(l, &semop_args, retval)); 117 118 case 3: /* semconfig() */ 119 SCARG(&semconfig_args, flag) = SCARG(uap, a2); 120 return (sys_semconfig(l, &semconfig_args, retval)); 121 122 default: 123 return (EINVAL); 124 } 125 } 126 #endif 127 128 #if defined(SYSVSHM) && !defined(_LP64) 129 int 130 compat_10_sys_shmsys(struct lwp *l, void *v, register_t *retval) 131 { 132 struct compat_10_sys_shmsys_args /* { 133 syscallarg(int) which; 134 syscallarg(int) a2; 135 syscallarg(int) a3; 136 syscallarg(int) a4; 137 } */ *uap = v; 138 struct sys_shmat_args /* { 139 syscallarg(int) shmid; 140 syscallarg(void *) shmaddr; 141 syscallarg(int) shmflg; 142 } */ shmat_args; 143 struct compat_14_sys_shmctl_args /* { 144 syscallarg(int) shmid; 145 syscallarg(int) cmd; 146 syscallarg(struct shmid14_ds *) buf; 147 } */ shmctl_args; 148 struct sys_shmdt_args /* { 149 syscallarg(void *) shmaddr; 150 } */ shmdt_args; 151 struct sys_shmget_args /* { 152 syscallarg(key_t) key; 153 syscallarg(int) size; 154 syscallarg(int) shmflg; 155 } */ shmget_args; 156 157 switch (SCARG(uap, which)) { 158 case 0: /* shmat() */ 159 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 160 SCARG(&shmat_args, shmaddr) = 161 (void *)(u_long)SCARG(uap, a3); 162 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 163 return (sys_shmat(l, &shmat_args, retval)); 164 165 case 1: /* shmctl() */ 166 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 167 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 168 SCARG(&shmctl_args, buf) = 169 (struct shmid_ds14 *)(u_long)SCARG(uap, a4); 170 return (compat_14_sys_shmctl(l, &shmctl_args, retval)); 171 172 case 2: /* shmdt() */ 173 SCARG(&shmdt_args, shmaddr) = 174 (void *)(u_long)SCARG(uap, a2); 175 return (sys_shmdt(l, &shmdt_args, retval)); 176 177 case 3: /* shmget() */ 178 SCARG(&shmget_args, key) = SCARG(uap, a2); 179 SCARG(&shmget_args, size) = SCARG(uap, a3); 180 SCARG(&shmget_args, shmflg) = SCARG(uap, a4); 181 return (sys_shmget(l, &shmget_args, retval)); 182 183 default: 184 return (EINVAL); 185 } 186 } 187 #endif 188 189 #if defined(SYSVMSG) && !defined(_LP64) 190 int 191 compat_10_sys_msgsys(struct lwp *l, void *v, register_t *retval) 192 { 193 struct compat_10_sys_msgsys_args /* { 194 syscallarg(int) which; 195 syscallarg(int) a2; 196 syscallarg(int) a3; 197 syscallarg(int) a4; 198 syscallarg(int) a5; 199 syscallarg(int) a6; 200 } */ *uap = v; 201 struct compat_14_sys_msgctl_args /* { 202 syscallarg(int) msqid; 203 syscallarg(int) cmd; 204 syscallarg(struct msqid14_ds *) buf; 205 } */ msgctl_args; 206 struct sys_msgget_args /* { 207 syscallarg(key_t) key; 208 syscallarg(int) msgflg; 209 } */ msgget_args; 210 struct sys_msgsnd_args /* { 211 syscallarg(int) msqid; 212 syscallarg(void *) msgp; 213 syscallarg(size_t) msgsz; 214 syscallarg(int) msgflg; 215 } */ msgsnd_args; 216 struct sys_msgrcv_args /* { 217 syscallarg(int) msqid; 218 syscallarg(void *) msgp; 219 syscallarg(size_t) msgsz; 220 syscallarg(long) msgtyp; 221 syscallarg(int) msgflg; 222 } */ msgrcv_args; 223 224 switch (SCARG(uap, which)) { 225 case 0: /* msgctl()*/ 226 SCARG(&msgctl_args, msqid) = SCARG(uap, a2); 227 SCARG(&msgctl_args, cmd) = SCARG(uap, a3); 228 SCARG(&msgctl_args, buf) = 229 (struct msqid_ds14 *)(u_long)SCARG(uap, a4); 230 return (compat_14_sys_msgctl(l, &msgctl_args, retval)); 231 232 case 1: /* msgget() */ 233 SCARG(&msgget_args, key) = SCARG(uap, a2); 234 SCARG(&msgget_args, msgflg) = SCARG(uap, a3); 235 return (sys_msgget(l, &msgget_args, retval)); 236 237 case 2: /* msgsnd() */ 238 SCARG(&msgsnd_args, msqid) = SCARG(uap, a2); 239 SCARG(&msgsnd_args, msgp) = 240 (void *)(u_long)SCARG(uap, a3); 241 SCARG(&msgsnd_args, msgsz) = SCARG(uap, a4); 242 SCARG(&msgsnd_args, msgflg) = SCARG(uap, a5); 243 return (sys_msgsnd(l, &msgsnd_args, retval)); 244 245 case 3: /* msgrcv() */ 246 SCARG(&msgrcv_args, msqid) = SCARG(uap, a2); 247 SCARG(&msgrcv_args, msgp) = 248 (void *)(u_long)SCARG(uap, a3); 249 SCARG(&msgrcv_args, msgsz) = SCARG(uap, a4); 250 SCARG(&msgrcv_args, msgtyp) = SCARG(uap, a5); 251 SCARG(&msgrcv_args, msgflg) = SCARG(uap, a6); 252 return (sys_msgrcv(l, &msgrcv_args, retval)); 253 254 default: 255 return (EINVAL); 256 } 257 } 258 #endif 259
Indexes created Tue Sep 30 20:09:53 GMT 2025