netbsd32_compat_14_sysv.c revision 1.1.2.2
1 /* $NetBSD: netbsd32_compat_14_sysv.c,v 1.1.2.2 2019/01/03 10:57:32 pgoyette 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 1.1.2.2 2019/01/03 10:57:32 pgoyette 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 #define CVT(x) operm->x = perm->x 80 CVT(uid); 81 CVT(gid); 82 CVT(cuid); 83 CVT(cgid); 84 CVT(mode); 85 #undef CVT 86 87 /* 88 * Not part of the API, but some programs might look at it. 89 */ 90 operm->seq = perm->_seq; 91 operm->key = (key_t)perm->_key; 92 } 93 94 static inline void 95 netbsd32_msqid_ds14_to_native(struct netbsd32_msqid_ds14 *omsqbuf, struct msqid_ds *msqbuf) 96 { 97 98 netbsd32_ipc_perm14_to_native(&omsqbuf->msg_perm, &msqbuf->msg_perm); 99 100 #define CVT(x) msqbuf->x = omsqbuf->x 101 CVT(msg_qnum); 102 CVT(msg_qbytes); 103 CVT(msg_lspid); 104 CVT(msg_lrpid); 105 CVT(msg_stime); 106 CVT(msg_rtime); 107 CVT(msg_ctime); 108 #undef CVT 109 } 110 111 static inline void 112 native_to_netbsd32_msqid_ds14(struct msqid_ds *msqbuf, struct netbsd32_msqid_ds14 *omsqbuf) 113 { 114 115 memset(omsqbuf, 0, sizeof(*omsqbuf)); 116 native_to_netbsd32_ipc_perm14(&msqbuf->msg_perm, &omsqbuf->msg_perm); 117 118 #define CVT(x) omsqbuf->x = msqbuf->x 119 CVT(msg_qnum); 120 CVT(msg_qbytes); 121 CVT(msg_lspid); 122 CVT(msg_lrpid); 123 CVT(msg_stime); 124 CVT(msg_rtime); 125 CVT(msg_ctime); 126 #undef CVT 127 128 /* 129 * Not part of the API, but some programs might look at it. 130 */ 131 omsqbuf->msg_cbytes = msqbuf->_msg_cbytes; 132 } 133 #endif 134 135 #if defined(SYSVSEM) 136 static inline void 137 netbsd32_semid_ds14_to_native(struct netbsd32_semid_ds14 *osembuf, struct semid_ds *sembuf) 138 { 139 140 netbsd32_ipc_perm14_to_native(&osembuf->sem_perm, &sembuf->sem_perm); 141 142 #define CVT(x) sembuf->x = osembuf->x 143 CVT(sem_nsems); 144 CVT(sem_otime); 145 CVT(sem_ctime); 146 #undef CVT 147 } 148 149 static inline void 150 native_to_netbsd32_semid_ds14(struct semid_ds *sembuf, struct netbsd32_semid_ds14 *osembuf) 151 { 152 153 native_to_netbsd32_ipc_perm14(&sembuf->sem_perm, &osembuf->sem_perm); 154 155 #define CVT(x) osembuf->x = sembuf->x 156 CVT(sem_nsems); 157 CVT(sem_otime); 158 CVT(sem_ctime); 159 #undef CVT 160 } 161 162 static inline void 163 netbsd32_shmid_ds14_to_native(struct netbsd32_shmid_ds14 *oshmbuf, struct shmid_ds *shmbuf) 164 { 165 166 netbsd32_ipc_perm14_to_native(&oshmbuf->shm_perm, &shmbuf->shm_perm); 167 168 #define CVT(x) shmbuf->x = oshmbuf->x 169 CVT(shm_segsz); 170 CVT(shm_lpid); 171 CVT(shm_cpid); 172 CVT(shm_nattch); 173 CVT(shm_atime); 174 CVT(shm_dtime); 175 CVT(shm_ctime); 176 #undef CVT 177 } 178 179 static inline void 180 native_to_netbsd32_shmid_ds14(struct shmid_ds *shmbuf, struct netbsd32_shmid_ds14 *oshmbuf) 181 { 182 183 native_to_netbsd32_ipc_perm14(&shmbuf->shm_perm, &oshmbuf->shm_perm); 184 185 #define CVT(x) oshmbuf->x = shmbuf->x 186 CVT(shm_segsz); 187 CVT(shm_lpid); 188 CVT(shm_cpid); 189 CVT(shm_nattch); 190 CVT(shm_atime); 191 CVT(shm_dtime); 192 CVT(shm_ctime); 193 #undef CVT 194 } 195 196 /* 197 * the compat_14 system calls 198 */ 199 int 200 compat_14_netbsd32_msgctl(struct lwp *l, const struct compat_14_netbsd32_msgctl_args *uap, register_t *retval) 201 { 202 /* { 203 syscallarg(int) msqid; 204 syscallarg(int) cmd; 205 syscallarg(struct msqid_ds14 *) buf; 206 } */ 207 struct msqid_ds msqbuf; 208 struct netbsd32_msqid_ds14 omsqbuf; 209 int cmd, error; 210 211 cmd = SCARG(uap, cmd); 212 213 if (cmd == IPC_SET) { 214 error = copyin(SCARG_P32(uap, buf), 215 &omsqbuf, sizeof(omsqbuf)); 216 if (error) 217 return (error); 218 netbsd32_msqid_ds14_to_native(&omsqbuf, &msqbuf); 219 } 220 221 error = msgctl1(l, SCARG(uap, msqid), cmd, 222 (cmd == IPC_SET || cmd == IPC_STAT) ? &msqbuf : NULL); 223 224 if (error == 0 && cmd == IPC_STAT) { 225 native_to_netbsd32_msqid_ds14(&msqbuf, &omsqbuf); 226 error = copyout(&omsqbuf, 227 SCARG_P32(uap, buf), sizeof(omsqbuf)); 228 } 229 230 return (error); 231 } 232 #endif 233 234 #if defined(SYSVSEM) 235 int 236 compat_14_netbsd32___semctl(struct lwp *l, const struct compat_14_netbsd32___semctl_args *uap, register_t *retval) 237 { 238 /* { 239 syscallarg(int) semid; 240 syscallarg(int) semnum; 241 syscallarg(int) cmd; 242 syscallarg(union __semun *) arg; 243 } */ 244 union __semun arg; 245 struct semid_ds sembuf; 246 struct netbsd32_semid_ds14 osembuf; 247 int cmd, error; 248 void *pass_arg = NULL; 249 250 cmd = SCARG(uap, cmd); 251 252 switch (cmd) { 253 case IPC_SET: 254 case IPC_STAT: 255 pass_arg = &sembuf; 256 break; 257 258 case GETALL: 259 case SETVAL: 260 case SETALL: 261 pass_arg = &arg; 262 break; 263 } 264 265 if (pass_arg != NULL) { 266 error = copyin(NETBSD32IPTR64(SCARG(uap, arg)), &arg, 267 sizeof(arg)); 268 if (error) 269 return (error); 270 if (cmd == IPC_SET) { 271 error = copyin(arg.buf, &osembuf, sizeof(osembuf)); 272 if (error) 273 return (error); 274 netbsd32_semid_ds14_to_native(&osembuf, &sembuf); 275 } 276 } 277 278 error = semctl1(l, SCARG(uap, semid), SCARG(uap, semnum), cmd, 279 pass_arg, retval); 280 281 if (error == 0 && cmd == IPC_STAT) { 282 native_to_netbsd32_semid_ds14(&sembuf, &osembuf); 283 error = copyout(&osembuf, arg.buf, sizeof(osembuf)); 284 } 285 286 return (error); 287 } 288 #endif 289 290 #if defined(SYSVSHM) 291 int 292 compat_14_netbsd32_shmctl(struct lwp *l, const struct compat_14_netbsd32_shmctl_args *uap, register_t *retval) 293 { 294 /* { 295 syscallarg(int) shmid; 296 syscallarg(int) cmd; 297 syscallarg(struct netbsd32_shmid_ds14 *) buf; 298 } */ 299 struct shmid_ds shmbuf; 300 struct netbsd32_shmid_ds14 oshmbuf; 301 int cmd, error; 302 303 cmd = SCARG(uap, cmd); 304 305 if (cmd == IPC_SET) { 306 error = copyin(SCARG_P32(uap, buf), &oshmbuf, sizeof(oshmbuf)); 307 if (error) 308 return (error); 309 netbsd32_shmid_ds14_to_native(&oshmbuf, &shmbuf); 310 } 311 312 error = shmctl1(l, SCARG(uap, shmid), cmd, 313 (cmd == IPC_SET || cmd == IPC_STAT) ? &shmbuf : NULL); 314 315 if (error == 0 && cmd == IPC_STAT) { 316 native_to_netbsd32_shmid_ds14(&shmbuf, &oshmbuf); 317 error = copyout(&oshmbuf, SCARG_P32(uap, buf), sizeof(oshmbuf)); 318 } 319 320 return (error); 321 } 322 #endif 323 324 #define REQ1 "sysv_ipc,compat_sysv_14," 325 #define REQ2 "compat_netbsd32,compat_netbsd32_sysvipc," 326 #define REQ3 "compat_netbsd32_sysvipc_50" 327 328 #define _PKG_ENTRY(name) \ 329 { NETBSD32_SYS_ ## name, 0, (sy_call_t *)name } 330 331 static const struct syscall_package compat_sysvipc_14_syscalls[] = { 332 #if defined(SYSVSEM) 333 _PKG_ENTRY(compat_14_netbsd32___semctl), 334 #endif 335 #if defined(SYSVSHM) 336 _PKG_ENTRY(compat_14_netbsd32_shmctl), 337 #endif 338 #if defined(SYSVMSG) 339 _PKG_ENTRY(compat_14_netbsd32_msgctl), 340 #endif 341 { 0, 0, NULL } 342 }; 343 344 #define REQ1 "sysv_ipc,compat_sysv_14," 345 #define REQ2 "compat_netbsd32,compat_netbsd32_sysvipc," 346 #define REQ3 "compat_netbsd32_sysvipc_50" 347 348 MODULE(MODULE_CLASS_EXEC, compat_netbsd32_sysvipc_14, REQ1 REQ2 REQ3 ); 349 350 static int 351 compat_netbsd32_sysvipc_14_modcmd(modcmd_t cmd, void *arg) 352 { 353 354 switch (cmd) { 355 case MODULE_CMD_INIT: 356 return syscall_establish(&emul_netbsd32, 357 compat_sysvipc_14_syscalls); 358 359 case MODULE_CMD_FINI: 360 return syscall_disestablish(&emul_netbsd32, 361 compat_sysvipc_14_syscalls); 362 363 default: 364 return ENOTTY; 365 } 366 } 367 368 #endif /* COMPAT_14 */ 369
Indexes created Thu Oct 02 14:10:14 GMT 2025