1 /* $NetBSD: netbsd32_compat_14_sysv.c,v 1.4 2021/01/19 03:20:13 simonb Exp $ */ 2 3 /* 4 * Copyright (c) 1999 Eduardo E. Horvath 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 23 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #include <sys/cdefs.h> 32 __KERNEL_RCSID(0, "$NetBSD: netbsd32_compat_14_sysv.c,v 1.4 2021/01/19 03:20:13 simonb Exp $"); 33 34 #ifdef _KERNEL_OPT 35 #include "opt_sysv.h" 36 #include "opt_compat_netbsd.h" 37 #endif 38 39 #include <sys/param.h> 40 #include <sys/ipc.h> 41 #include <sys/systm.h> 42 #include <sys/module.h> 43 #include <sys/signal.h> 44 #include <sys/proc.h> 45 #include <sys/mount.h> 46 #include <sys/msg.h> 47 #include <sys/sem.h> 48 #include <sys/shm.h> 49 50 #include <sys/syscallargs.h> 51 #include <sys/syscallvar.h> 52 53 #include <compat/netbsd32/netbsd32.h> 54 #include <compat/netbsd32/netbsd32_syscall.h> 55 #include <compat/netbsd32/netbsd32_syscallargs.h> 56 #include <compat/sys/siginfo.h> 57 #include <compat/sys/shm.h> 58 59 #if defined(COMPAT_14) 60 61 #if defined(SYSVMSG) 62 static inline void 63 netbsd32_ipc_perm14_to_native(struct netbsd32_ipc_perm14 *operm, struct ipc_perm *perm) 64 { 65 66 #define CVT(x) perm->x = operm->x 67 CVT(uid); 68 CVT(gid); 69 CVT(cuid); 70 CVT(cgid); 71 CVT(mode); 72 #undef CVT 73 } 74 75 static inline void 76 native_to_netbsd32_ipc_perm14(struct ipc_perm *perm, struct netbsd32_ipc_perm14 *operm) 77 { 78 79 memset(operm, 0, sizeof *operm); 80 #define CVT(x) operm->x = perm->x 81 CVT(uid); 82 CVT(gid); 83 CVT(cuid); 84 CVT(cgid); 85 CVT(mode); 86 #undef CVT 87 88 /* 89 * Not part of the API, but some programs might look at it. 90 */ 91 operm->seq = perm->_seq; 92 operm->key = (key_t)perm->_key; 93 } 94 95 static inline void 96 netbsd32_msqid_ds14_to_native(struct netbsd32_msqid_ds14 *omsqbuf, struct msqid_ds *msqbuf) 97 { 98 99 netbsd32_ipc_perm14_to_native(&omsqbuf->msg_perm, &msqbuf->msg_perm); 100 101 #define CVT(x) msqbuf->x = omsqbuf->x 102 CVT(msg_qnum); 103 CVT(msg_qbytes); 104 CVT(msg_lspid); 105 CVT(msg_lrpid); 106 CVT(msg_stime); 107 CVT(msg_rtime); 108 CVT(msg_ctime); 109 #undef CVT 110 } 111 112 static inline void 113 native_to_netbsd32_msqid_ds14(struct msqid_ds *msqbuf, struct netbsd32_msqid_ds14 *omsqbuf) 114 { 115 116 memset(omsqbuf, 0, sizeof *omsqbuf); 117 native_to_netbsd32_ipc_perm14(&msqbuf->msg_perm, &omsqbuf->msg_perm); 118 119 #define CVT(x) omsqbuf->x = msqbuf->x 120 CVT(msg_qnum); 121 CVT(msg_qbytes); 122 CVT(msg_lspid); 123 CVT(msg_lrpid); 124 CVT(msg_stime); 125 CVT(msg_rtime); 126 CVT(msg_ctime); 127 #undef CVT 128 129 /* 130 * Not part of the API, but some programs might look at it. 131 */ 132 omsqbuf->msg_cbytes = msqbuf->_msg_cbytes; 133 } 134 #endif 135 136 #if defined(SYSVSEM) 137 static inline void 138 netbsd32_semid_ds14_to_native(struct netbsd32_semid_ds14 *osembuf, struct semid_ds *sembuf) 139 { 140 141 netbsd32_ipc_perm14_to_native(&osembuf->sem_perm, &sembuf->sem_perm); 142 143 #define CVT(x) sembuf->x = osembuf->x 144 CVT(sem_nsems); 145 CVT(sem_otime); 146 CVT(sem_ctime); 147 #undef CVT 148 } 149 150 static inline void 151 native_to_netbsd32_semid_ds14(struct semid_ds *sembuf, struct netbsd32_semid_ds14 *osembuf) 152 { 153 154 memset(osembuf, 0, sizeof *osembuf); 155 native_to_netbsd32_ipc_perm14(&sembuf->sem_perm, &osembuf->sem_perm); 156 157 #define CVT(x) osembuf->x = sembuf->x 158 CVT(sem_nsems); 159 CVT(sem_otime); 160 CVT(sem_ctime); 161 #undef CVT 162 } 163 164 static inline void 165 netbsd32_shmid_ds14_to_native(struct netbsd32_shmid_ds14 *oshmbuf, struct shmid_ds *shmbuf) 166 { 167 168 netbsd32_ipc_perm14_to_native(&oshmbuf->shm_perm, &shmbuf->shm_perm); 169 170 #define CVT(x) shmbuf->x = oshmbuf->x 171 CVT(shm_segsz); 172 CVT(shm_lpid); 173 CVT(shm_cpid); 174 CVT(shm_nattch); 175 CVT(shm_atime); 176 CVT(shm_dtime); 177 CVT(shm_ctime); 178 #undef CVT 179 } 180 181 static inline void 182 native_to_netbsd32_shmid_ds14(struct shmid_ds *shmbuf, struct netbsd32_shmid_ds14 *oshmbuf) 183 { 184 185 memset(oshmbuf, 0, sizeof *oshmbuf); 186 native_to_netbsd32_ipc_perm14(&shmbuf->shm_perm, &oshmbuf->shm_perm); 187 188 #define CVT(x) oshmbuf->x = shmbuf->x 189 CVT(shm_segsz); 190 CVT(shm_lpid); 191 CVT(shm_cpid); 192 CVT(shm_nattch); 193 CVT(shm_atime); 194 CVT(shm_dtime); 195 CVT(shm_ctime); 196 #undef CVT 197 } 198 199 /* 200 * the compat_14 system calls 201 */ 202 int 203 compat_14_netbsd32_msgctl(struct lwp *l, const struct compat_14_netbsd32_msgctl_args *uap, register_t *retval) 204 { 205 /* { 206 syscallarg(int) msqid; 207 syscallarg(int) cmd; 208 syscallarg(struct msqid_ds14 *) buf; 209 } */ 210 struct msqid_ds msqbuf; 211 struct netbsd32_msqid_ds14 omsqbuf; 212 int cmd, error; 213 214 cmd = SCARG(uap, cmd); 215 216 if (cmd == IPC_SET) { 217 error = copyin(SCARG_P32(uap, buf), 218 &omsqbuf, sizeof(omsqbuf)); 219 if (error) 220 return error; 221 netbsd32_msqid_ds14_to_native(&omsqbuf, &msqbuf); 222 } 223 224 error = msgctl1(l, SCARG(uap, msqid), cmd, 225 (cmd == IPC_SET || cmd == IPC_STAT) ? &msqbuf : NULL); 226 227 if (error == 0 && cmd == IPC_STAT) { 228 native_to_netbsd32_msqid_ds14(&msqbuf, &omsqbuf); 229 error = copyout(&omsqbuf, 230 SCARG_P32(uap, buf), sizeof(omsqbuf)); 231 } 232 233 return error; 234 } 235 #endif 236 237 #if defined(SYSVSEM) 238 int 239 compat_14_netbsd32___semctl(struct lwp *l, const struct compat_14_netbsd32___semctl_args *uap, register_t *retval) 240 { 241 /* { 242 syscallarg(int) semid; 243 syscallarg(int) semnum; 244 syscallarg(int) cmd; 245 syscallarg(union __semun *) arg; 246 } */ 247 union __semun arg; 248 struct semid_ds sembuf; 249 struct netbsd32_semid_ds14 osembuf; 250 int cmd, error; 251 void *pass_arg = NULL; 252 253 cmd = SCARG(uap, cmd); 254 255 switch (cmd) { 256 case IPC_SET: 257 case IPC_STAT: 258 pass_arg = &sembuf; 259 break; 260 261 case GETALL: 262 case SETVAL: 263 case SETALL: 264 pass_arg = &arg; 265 break; 266 } 267 268 if (pass_arg != NULL) { 269 error = copyin(NETBSD32IPTR64(SCARG(uap, arg)), &arg, 270 sizeof(arg)); 271 if (error) 272 return error; 273 if (cmd == IPC_SET) { 274 error = copyin(arg.buf, &osembuf, sizeof(osembuf)); 275 if (error) 276 return error; 277 netbsd32_semid_ds14_to_native(&osembuf, &sembuf); 278 } 279 } 280 281 error = semctl1(l, SCARG(uap, semid), SCARG(uap, semnum), cmd, 282 pass_arg, retval); 283 284 if (error == 0 && cmd == IPC_STAT) { 285 native_to_netbsd32_semid_ds14(&sembuf, &osembuf); 286 error = copyout(&osembuf, arg.buf, sizeof(osembuf)); 287 } 288 289 return error; 290 } 291 #endif 292 293 #if defined(SYSVSHM) 294 int 295 compat_14_netbsd32_shmctl(struct lwp *l, const struct compat_14_netbsd32_shmctl_args *uap, register_t *retval) 296 { 297 /* { 298 syscallarg(int) shmid; 299 syscallarg(int) cmd; 300 syscallarg(struct netbsd32_shmid_ds14 *) buf; 301 } */ 302 struct shmid_ds shmbuf; 303 struct netbsd32_shmid_ds14 oshmbuf; 304 int cmd, error; 305 306 cmd = SCARG(uap, cmd); 307 308 if (cmd == IPC_SET) { 309 error = copyin(SCARG_P32(uap, buf), &oshmbuf, sizeof(oshmbuf)); 310 if (error) 311 return error; 312 netbsd32_shmid_ds14_to_native(&oshmbuf, &shmbuf); 313 } 314 315 error = shmctl1(l, SCARG(uap, shmid), cmd, 316 (cmd == IPC_SET || cmd == IPC_STAT) ? &shmbuf : NULL); 317 318 if (error == 0 && cmd == IPC_STAT) { 319 native_to_netbsd32_shmid_ds14(&shmbuf, &oshmbuf); 320 error = copyout(&oshmbuf, SCARG_P32(uap, buf), sizeof(oshmbuf)); 321 } 322 323 return error; 324 } 325 #endif 326 327 #define REQ1 "sysv_ipc,compat_sysv_14," 328 #define REQ2 "compat_netbsd32,compat_netbsd32_sysvipc," 329 #define REQ3 "compat_netbsd32_sysvipc_50" 330 331 #define _PKG_ENTRY(name) \ 332 { NETBSD32_SYS_ ## name, 0, (sy_call_t *)name } 333 334 static const struct syscall_package compat_sysvipc_14_syscalls[] = { 335 #if defined(SYSVSEM) 336 _PKG_ENTRY(compat_14_netbsd32___semctl), 337 #endif 338 #if defined(SYSVSHM) 339 _PKG_ENTRY(compat_14_netbsd32_shmctl), 340 #endif 341 #if defined(SYSVMSG) 342 _PKG_ENTRY(compat_14_netbsd32_msgctl), 343 #endif 344 { 0, 0, NULL } 345 }; 346 347 #define REQ1 "sysv_ipc,compat_sysv_14," 348 #define REQ2 "compat_netbsd32,compat_netbsd32_sysvipc," 349 #define REQ3 "compat_netbsd32_sysvipc_50" 350 351 MODULE(MODULE_CLASS_EXEC, compat_netbsd32_sysvipc_14, REQ1 REQ2 REQ3 ); 352 353 static int 354 compat_netbsd32_sysvipc_14_modcmd(modcmd_t cmd, void *arg) 355 { 356 357 switch (cmd) { 358 case MODULE_CMD_INIT: 359 return syscall_establish(&emul_netbsd32, 360 compat_sysvipc_14_syscalls); 361 362 case MODULE_CMD_FINI: 363 return syscall_disestablish(&emul_netbsd32, 364 compat_sysvipc_14_syscalls); 365 366 default: 367 return ENOTTY; 368 } 369 } 370 371 #endif /* COMPAT_14 */ 372
Indexes created Sat Sep 20 22:09:52 GMT 2025