1 /* $NetBSD: netbsd32_compat_14.c,v 1.26 2016/01/07 21:58:28 joerg 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.c,v 1.26 2016/01/07 21:58:28 joerg 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/signal.h>
43 #include <sys/proc.h>
44 #include <sys/mount.h>
45 #include <sys/msg.h>
46 #include <sys/sem.h>
47 #include <sys/shm.h>
48
49 #include <sys/syscallargs.h>
50 #include <compat/netbsd32/netbsd32.h>
51 #include <compat/netbsd32/netbsd32_syscallargs.h>
52 #include <compat/sys/shm.h>
53
54 #if defined(COMPAT_14)
55
56 #if defined(SYSVMSG)
57 static inline void
netbsd32_ipc_perm14_to_native(struct netbsd32_ipc_perm14 * operm,struct ipc_perm * perm)58 netbsd32_ipc_perm14_to_native(struct netbsd32_ipc_perm14 *operm, struct ipc_perm *perm)
59 {
60
61 #define CVT(x) perm->x = operm->x
62 CVT(uid);
63 CVT(gid);
64 CVT(cuid);
65 CVT(cgid);
66 CVT(mode);
67 #undef CVT
68 }
69
70 static inline void
native_to_netbsd32_ipc_perm14(struct ipc_perm * perm,struct netbsd32_ipc_perm14 * operm)71 native_to_netbsd32_ipc_perm14(struct ipc_perm *perm, struct netbsd32_ipc_perm14 *operm)
72 {
73
74 #define CVT(x) operm->x = perm->x
75 CVT(uid);
76 CVT(gid);
77 CVT(cuid);
78 CVT(cgid);
79 CVT(mode);
80 #undef CVT
81
82 /*
83 * Not part of the API, but some programs might look at it.
84 */
85 operm->seq = perm->_seq;
86 operm->key = (key_t)perm->_key;
87 }
88
89 static inline void
netbsd32_msqid_ds14_to_native(struct netbsd32_msqid_ds14 * omsqbuf,struct msqid_ds * msqbuf)90 netbsd32_msqid_ds14_to_native(struct netbsd32_msqid_ds14 *omsqbuf, struct msqid_ds *msqbuf)
91 {
92
93 netbsd32_ipc_perm14_to_native(&omsqbuf->msg_perm, &msqbuf->msg_perm);
94
95 #define CVT(x) msqbuf->x = omsqbuf->x
96 CVT(msg_qnum);
97 CVT(msg_qbytes);
98 CVT(msg_lspid);
99 CVT(msg_lrpid);
100 CVT(msg_stime);
101 CVT(msg_rtime);
102 CVT(msg_ctime);
103 #undef CVT
104 }
105
106 static inline void
native_to_netbsd32_msqid_ds14(struct msqid_ds * msqbuf,struct netbsd32_msqid_ds14 * omsqbuf)107 native_to_netbsd32_msqid_ds14(struct msqid_ds *msqbuf, struct netbsd32_msqid_ds14 *omsqbuf)
108 {
109
110 native_to_netbsd32_ipc_perm14(&msqbuf->msg_perm, &omsqbuf->msg_perm);
111
112 #define CVT(x) omsqbuf->x = msqbuf->x
113 CVT(msg_qnum);
114 CVT(msg_qbytes);
115 CVT(msg_lspid);
116 CVT(msg_lrpid);
117 CVT(msg_stime);
118 CVT(msg_rtime);
119 CVT(msg_ctime);
120 #undef CVT
121
122 /*
123 * Not part of the API, but some programs might look at it.
124 */
125 omsqbuf->msg_cbytes = msqbuf->_msg_cbytes;
126 }
127 #endif
128
129 #if defined(SYSVSEM)
130 static inline void
netbsd32_semid_ds14_to_native(struct netbsd32_semid_ds14 * osembuf,struct semid_ds * sembuf)131 netbsd32_semid_ds14_to_native(struct netbsd32_semid_ds14 *osembuf, struct semid_ds *sembuf)
132 {
133
134 netbsd32_ipc_perm14_to_native(&osembuf->sem_perm, &sembuf->sem_perm);
135
136 #define CVT(x) sembuf->x = osembuf->x
137 CVT(sem_nsems);
138 CVT(sem_otime);
139 CVT(sem_ctime);
140 #undef CVT
141 }
142
143 static inline void
native_to_netbsd32_semid_ds14(struct semid_ds * sembuf,struct netbsd32_semid_ds14 * osembuf)144 native_to_netbsd32_semid_ds14(struct semid_ds *sembuf, struct netbsd32_semid_ds14 *osembuf)
145 {
146
147 native_to_netbsd32_ipc_perm14(&sembuf->sem_perm, &osembuf->sem_perm);
148
149 #define CVT(x) osembuf->x = sembuf->x
150 CVT(sem_nsems);
151 CVT(sem_otime);
152 CVT(sem_ctime);
153 #undef CVT
154 }
155
156 static inline void
netbsd32_shmid_ds14_to_native(struct netbsd32_shmid_ds14 * oshmbuf,struct shmid_ds * shmbuf)157 netbsd32_shmid_ds14_to_native(struct netbsd32_shmid_ds14 *oshmbuf, struct shmid_ds *shmbuf)
158 {
159
160 netbsd32_ipc_perm14_to_native(&oshmbuf->shm_perm, &shmbuf->shm_perm);
161
162 #define CVT(x) shmbuf->x = oshmbuf->x
163 CVT(shm_segsz);
164 CVT(shm_lpid);
165 CVT(shm_cpid);
166 CVT(shm_nattch);
167 CVT(shm_atime);
168 CVT(shm_dtime);
169 CVT(shm_ctime);
170 #undef CVT
171 }
172
173 static inline void
native_to_netbsd32_shmid_ds14(struct shmid_ds * shmbuf,struct netbsd32_shmid_ds14 * oshmbuf)174 native_to_netbsd32_shmid_ds14(struct shmid_ds *shmbuf, struct netbsd32_shmid_ds14 *oshmbuf)
175 {
176
177 native_to_netbsd32_ipc_perm14(&shmbuf->shm_perm, &oshmbuf->shm_perm);
178
179 #define CVT(x) oshmbuf->x = shmbuf->x
180 CVT(shm_segsz);
181 CVT(shm_lpid);
182 CVT(shm_cpid);
183 CVT(shm_nattch);
184 CVT(shm_atime);
185 CVT(shm_dtime);
186 CVT(shm_ctime);
187 #undef CVT
188 }
189
190 /*
191 * the compat_14 system calls
192 */
193 int
compat_14_netbsd32_msgctl(struct lwp * l,const struct compat_14_netbsd32_msgctl_args * uap,register_t * retval)194 compat_14_netbsd32_msgctl(struct lwp *l, const struct compat_14_netbsd32_msgctl_args *uap, register_t *retval)
195 {
196 /* {
197 syscallarg(int) msqid;
198 syscallarg(int) cmd;
199 syscallarg(struct msqid_ds14 *) buf;
200 } */
201 struct msqid_ds msqbuf;
202 struct netbsd32_msqid_ds14 omsqbuf;
203 int cmd, error;
204
205 cmd = SCARG(uap, cmd);
206
207 if (cmd == IPC_SET) {
208 error = copyin(SCARG_P32(uap, buf),
209 &omsqbuf, sizeof(omsqbuf));
210 if (error)
211 return (error);
212 netbsd32_msqid_ds14_to_native(&omsqbuf, &msqbuf);
213 }
214
215 error = msgctl1(l, SCARG(uap, msqid), cmd,
216 (cmd == IPC_SET || cmd == IPC_STAT) ? &msqbuf : NULL);
217
218 if (error == 0 && cmd == IPC_STAT) {
219 native_to_netbsd32_msqid_ds14(&msqbuf, &omsqbuf);
220 error = copyout(&omsqbuf,
221 SCARG_P32(uap, buf), sizeof(omsqbuf));
222 }
223
224 return (error);
225 }
226 #endif
227
228 #if defined(SYSVSEM)
229 int
compat_14_netbsd32___semctl(struct lwp * l,const struct compat_14_netbsd32___semctl_args * uap,register_t * retval)230 compat_14_netbsd32___semctl(struct lwp *l, const struct compat_14_netbsd32___semctl_args *uap, register_t *retval)
231 {
232 /* {
233 syscallarg(int) semid;
234 syscallarg(int) semnum;
235 syscallarg(int) cmd;
236 syscallarg(union __semun *) arg;
237 } */
238 union __semun arg;
239 struct semid_ds sembuf;
240 struct netbsd32_semid_ds14 osembuf;
241 int cmd, error;
242 void *pass_arg = NULL;
243
244 cmd = SCARG(uap, cmd);
245
246 switch (cmd) {
247 case IPC_SET:
248 case IPC_STAT:
249 pass_arg = &sembuf;
250 break;
251
252 case GETALL:
253 case SETVAL:
254 case SETALL:
255 pass_arg = &arg;
256 break;
257 }
258
259 if (pass_arg != NULL) {
260 error = copyin(NETBSD32IPTR64(SCARG(uap, arg)), &arg,
261 sizeof(arg));
262 if (error)
263 return (error);
264 if (cmd == IPC_SET) {
265 error = copyin(arg.buf, &osembuf, sizeof(osembuf));
266 if (error)
267 return (error);
268 netbsd32_semid_ds14_to_native(&osembuf, &sembuf);
269 }
270 }
271
272 error = semctl1(l, SCARG(uap, semid), SCARG(uap, semnum), cmd,
273 pass_arg, retval);
274
275 if (error == 0 && cmd == IPC_STAT) {
276 native_to_netbsd32_semid_ds14(&sembuf, &osembuf);
277 error = copyout(&osembuf, arg.buf, sizeof(osembuf));
278 }
279
280 return (error);
281 }
282 #endif
283
284 #if defined(SYSVSHM)
285 int
compat_14_netbsd32_shmctl(struct lwp * l,const struct compat_14_netbsd32_shmctl_args * uap,register_t * retval)286 compat_14_netbsd32_shmctl(struct lwp *l, const struct compat_14_netbsd32_shmctl_args *uap, register_t *retval)
287 {
288 /* {
289 syscallarg(int) shmid;
290 syscallarg(int) cmd;
291 syscallarg(struct netbsd32_shmid_ds14 *) buf;
292 } */
293 struct shmid_ds shmbuf;
294 struct netbsd32_shmid_ds14 oshmbuf;
295 int cmd, error;
296
297 cmd = SCARG(uap, cmd);
298
299 if (cmd == IPC_SET) {
300 error = copyin(SCARG_P32(uap, buf), &oshmbuf, sizeof(oshmbuf));
301 if (error)
302 return (error);
303 netbsd32_shmid_ds14_to_native(&oshmbuf, &shmbuf);
304 }
305
306 error = shmctl1(l, SCARG(uap, shmid), cmd,
307 (cmd == IPC_SET || cmd == IPC_STAT) ? &shmbuf : NULL);
308
309 if (error == 0 && cmd == IPC_STAT) {
310 native_to_netbsd32_shmid_ds14(&shmbuf, &oshmbuf);
311 error = copyout(&oshmbuf, SCARG_P32(uap, buf), sizeof(oshmbuf));
312 }
313
314 return (error);
315 }
316 #endif
317 #endif /* COMPAT_14 */
318