1 /* $NetBSD: freebsd_ipc.c,v 1.17 2014/11/09 18:30:38 maxv 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: freebsd_ipc.c,v 1.17 2014/11/09 18:30:38 maxv Exp $");
35
36 #if defined(_KERNEL_OPT)
37 #include "opt_sysv.h"
38 #endif
39
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/kernel.h>
43 #include <sys/proc.h>
44 #include <sys/sem.h>
45 #include <sys/shm.h>
46
47 #include <sys/mount.h>
48 #include <sys/syscallargs.h>
49
50 #include <compat/sys/shm.h>
51 #include <compat/freebsd/freebsd_syscallargs.h>
52
53 #ifdef SYSVSEM
54 int
freebsd_sys_semsys(struct lwp * l,const struct freebsd_sys_semsys_args * uap,register_t * retval)55 freebsd_sys_semsys(struct lwp *l, const struct freebsd_sys_semsys_args *uap, register_t *retval)
56 {
57 /* {
58 syscallarg(int) which;
59 syscallarg(int) a2;
60 syscallarg(int) a3;
61 syscallarg(int) a4;
62 syscallarg(int) a5;
63 } */
64 struct compat_14_sys___semctl_args /* {
65 syscallarg(int) semid;
66 syscallarg(int) semnum;
67 syscallarg(int) cmd;
68 syscallarg(union __semun *) arg;
69 } */ __semctl_args;
70 struct sys_semget_args /* {
71 syscallarg(key_t) key;
72 syscallarg(int) nsems;
73 syscallarg(int) semflg;
74 } */ semget_args;
75 struct sys_semop_args /* {
76 syscallarg(int) semid;
77 syscallarg(struct sembuf *) sops;
78 syscallarg(u_int) nsops;
79 } */ semop_args;
80 struct sys_semconfig_args /* {
81 syscallarg(int) flag;
82 } */ semconfig_args;
83
84 switch (SCARG(uap, which)) {
85 case 0: /* __semctl() */
86 SCARG(&__semctl_args, semid) = SCARG(uap, a2);
87 SCARG(&__semctl_args, semnum) = SCARG(uap, a3);
88 SCARG(&__semctl_args, cmd) = SCARG(uap, a4);
89 SCARG(&__semctl_args, arg) = (union __semun *)SCARG(uap, a5);
90 return (compat_14_sys___semctl(l, &__semctl_args, retval));
91
92 case 1: /* semget() */
93 SCARG(&semget_args, key) = SCARG(uap, a2);
94 SCARG(&semget_args, nsems) = SCARG(uap, a3);
95 SCARG(&semget_args, semflg) = SCARG(uap, a4);
96 return (sys_semget(l, &semget_args, retval));
97
98 case 2: /* semop() */
99 SCARG(&semop_args, semid) = SCARG(uap, a2);
100 SCARG(&semop_args, sops) = (struct sembuf *)SCARG(uap, a3);
101 SCARG(&semop_args, nsops) = SCARG(uap, a4);
102 return (sys_semop(l, &semop_args, retval));
103
104 case 3: /* semconfig() */
105 SCARG(&semconfig_args, flag) = SCARG(uap, a2);
106 return (sys_semconfig(l, &semconfig_args, retval));
107
108 default:
109 return (EINVAL);
110 }
111 }
112 #endif
113
114 #ifdef SYSVSHM
115 int
freebsd_sys_shmsys(struct lwp * l,const struct freebsd_sys_shmsys_args * uap,register_t * retval)116 freebsd_sys_shmsys(struct lwp *l, const struct freebsd_sys_shmsys_args *uap, register_t *retval)
117 {
118 /* {
119 syscallarg(int) which;
120 syscallarg(int) a2;
121 syscallarg(int) a3;
122 syscallarg(int) a4;
123 } */
124 struct sys_shmat_args /* {
125 syscallarg(int) shmid;
126 syscallarg(void *) shmaddr;
127 syscallarg(int) shmflg;
128 } */ shmat_args;
129 struct compat_14_sys_shmctl_args /* {
130 syscallarg(int) shmid;
131 syscallarg(int) cmd;
132 syscallarg(struct shmid_ds14 *) buf;
133 } */ shmctl_args;
134 struct sys_shmdt_args /* {
135 syscallarg(void *) shmaddr;
136 } */ shmdt_args;
137 struct sys_shmget_args /* {
138 syscallarg(key_t) key;
139 syscallarg(int) size;
140 syscallarg(int) shmflg;
141 } */ shmget_args;
142
143 switch (SCARG(uap, which)) {
144 case 0: /* shmat() */
145 SCARG(&shmat_args, shmid) = SCARG(uap, a2);
146 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3);
147 SCARG(&shmat_args, shmflg) = SCARG(uap, a4);
148 return (sys_shmat(l, &shmat_args, retval));
149
150 case 1: /* oshmctl() */
151 /* XXX Need to translate shmid_ds format. */
152 return (EINVAL);
153
154 case 2: /* shmdt() */
155 SCARG(&shmdt_args, shmaddr) = (void *)SCARG(uap, a2);
156 return (sys_shmdt(l, &shmdt_args, retval));
157
158 case 3: /* shmget() */
159 SCARG(&shmget_args, key) = SCARG(uap, a2);
160 SCARG(&shmget_args, size) = SCARG(uap, a3);
161 SCARG(&shmget_args, shmflg) = SCARG(uap, a4);
162 return (sys_shmget(l, &shmget_args, retval));
163
164 case 4: /* shmctl() */
165 SCARG(&shmctl_args, shmid) = SCARG(uap, a2);
166 SCARG(&shmctl_args, cmd) = SCARG(uap, a3);
167 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4);
168 return (compat_14_sys_shmctl(l, &shmctl_args, retval));
169
170 default:
171 return (EINVAL);
172 }
173 }
174 #endif
175
176 #ifdef SYSVMSG
177 int
freebsd_sys_msgsys(struct lwp * l,const struct freebsd_sys_msgsys_args * uap,register_t * retval)178 freebsd_sys_msgsys(struct lwp *l, const struct freebsd_sys_msgsys_args *uap, register_t *retval)
179 {
180 /* {
181 syscallarg(int) which;
182 syscallarg(int) a2;
183 syscallarg(int) a3;
184 syscallarg(int) a4;
185 syscallarg(int) a5;
186 syscallarg(int) a6;
187 } */
188 struct compat_14_sys_msgctl_args /* {
189 syscallarg(int) msqid;
190 syscallarg(int) cmd;
191 syscallarg(struct msqid_ds14 *) buf;
192 } */ msgctl_args;
193 struct sys_msgget_args /* {
194 syscallarg(key_t) key;
195 syscallarg(int) msgflg;
196 } */ msgget_args;
197 struct sys_msgsnd_args /* {
198 syscallarg(int) msqid;
199 syscallarg(void *) msgp;
200 syscallarg(size_t) msgsz;
201 syscallarg(int) msgflg;
202 } */ msgsnd_args;
203 struct sys_msgrcv_args /* {
204 syscallarg(int) msqid;
205 syscallarg(void *) msgp;
206 syscallarg(size_t) msgsz;
207 syscallarg(long) msgtyp;
208 syscallarg(int) msgflg;
209 } */ msgrcv_args;
210
211 switch (SCARG(uap, which)) {
212 case 0: /* msgctl()*/
213 SCARG(&msgctl_args, msqid) = SCARG(uap, a2);
214 SCARG(&msgctl_args, cmd) = SCARG(uap, a3);
215 SCARG(&msgctl_args, buf) =
216 (struct msqid_ds14 *)SCARG(uap, a4);
217 return (compat_14_sys_msgctl(l, &msgctl_args, retval));
218
219 case 1: /* msgget() */
220 SCARG(&msgget_args, key) = SCARG(uap, a2);
221 SCARG(&msgget_args, msgflg) = SCARG(uap, a3);
222 return (sys_msgget(l, &msgget_args, retval));
223
224 case 2: /* msgsnd() */
225 SCARG(&msgsnd_args, msqid) = SCARG(uap, a2);
226 SCARG(&msgsnd_args, msgp) = (void *)SCARG(uap, a3);
227 SCARG(&msgsnd_args, msgsz) = SCARG(uap, a4);
228 SCARG(&msgsnd_args, msgflg) = SCARG(uap, a5);
229 return (sys_msgsnd(l, &msgsnd_args, retval));
230
231 case 3: /* msgrcv() */
232 SCARG(&msgrcv_args, msqid) = SCARG(uap, a2);
233 SCARG(&msgrcv_args, msgp) = (void *)SCARG(uap, a3);
234 SCARG(&msgrcv_args, msgsz) = SCARG(uap, a4);
235 SCARG(&msgrcv_args, msgtyp) = SCARG(uap, a5);
236 SCARG(&msgrcv_args, msgflg) = SCARG(uap, a6);
237 return (sys_msgrcv(l, &msgrcv_args, retval));
238
239 default:
240 return (EINVAL);
241 }
242 }
243 #endif
244