1 /*
2 * Copyright (c) 1995 Scott Bartram
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 * $FreeBSD: src/sys/i386/ibcs2/ibcs2_fcntl.c,v 1.4.4.1 1999/09/05 08:11:23 peter Exp $
28 */
29
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/namei.h>
33 #include <sys/proc.h>
34 #include <sys/file.h>
35 #include <sys/stat.h>
36 #include <sys/filedesc.h>
37 #include <sys/ioctl.h>
38 #include <sys/kernel.h>
39 #include <sys/mount.h>
40 #include <sys/malloc.h>
41 #include <sys/sysproto.h>
42
43 #include <i386/ibcs2/ibcs2_types.h>
44 #include <i386/ibcs2/ibcs2_fcntl.h>
45 #include <i386/ibcs2/ibcs2_signal.h>
46 #include <i386/ibcs2/ibcs2_proto.h>
47 #include <i386/ibcs2/ibcs2_util.h>
48
49 static void cvt_iflock2flock __P((struct ibcs2_flock *, struct flock *));
50 static void cvt_flock2iflock __P((struct flock *, struct ibcs2_flock *));
51 static int cvt_o_flags __P((int));
52 static int oflags2ioflags __P((int));
53 static int ioflags2oflags __P((int));
54
55 static int
56 cvt_o_flags(flags)
57 int flags;
58 {
59 int r = 0;
60
61 /* convert mode into NetBSD mode */
62 if (flags & IBCS2_O_WRONLY) r |= O_WRONLY;
63 if (flags & IBCS2_O_RDWR) r |= O_RDWR;
64 if (flags & (IBCS2_O_NDELAY | IBCS2_O_NONBLOCK)) r |= O_NONBLOCK;
65 if (flags & IBCS2_O_APPEND) r |= O_APPEND;
66 if (flags & IBCS2_O_SYNC) r |= O_FSYNC;
67 if (flags & IBCS2_O_CREAT) r |= O_CREAT;
68 if (flags & IBCS2_O_TRUNC) r |= O_TRUNC /* | O_CREAT ??? */;
69 if (flags & IBCS2_O_EXCL) r |= O_EXCL;
70 if (flags & IBCS2_O_RDONLY) r |= O_RDONLY;
71 if (flags & IBCS2_O_PRIV) r |= O_EXLOCK;
72 if (flags & IBCS2_O_NOCTTY) r |= O_NOCTTY;
73 return r;
74 }
75
76 static void
77 cvt_flock2iflock(flp, iflp)
78 struct flock *flp;
79 struct ibcs2_flock *iflp;
80 {
81 switch (flp->l_type) {
82 case F_RDLCK:
83 iflp->l_type = IBCS2_F_RDLCK;
84 break;
85 case F_WRLCK:
86 iflp->l_type = IBCS2_F_WRLCK;
87 break;
88 case F_UNLCK:
89 iflp->l_type = IBCS2_F_UNLCK;
90 break;
91 }
92 iflp->l_whence = (short)flp->l_whence;
93 iflp->l_start = (ibcs2_off_t)flp->l_start;
94 iflp->l_len = (ibcs2_off_t)flp->l_len;
95 iflp->l_sysid = 0;
96 iflp->l_pid = (ibcs2_pid_t)flp->l_pid;
97 }
98
99 #ifdef DEBUG_IBCS2
100 static void
101 print_flock(struct flock *flp)
102 {
103 printf("flock: start=%x len=%x pid=%d type=%d whence=%d\n",
104 (int)flp->l_start, (int)flp->l_len, (int)flp->l_pid,
105 flp->l_type, flp->l_whence);
106 }
107 #endif
108
109 static void
110 cvt_iflock2flock(iflp, flp)
111 struct ibcs2_flock *iflp;
112 struct flock *flp;
113 {
114 flp->l_start = (off_t)iflp->l_start;
115 flp->l_len = (off_t)iflp->l_len;
116 flp->l_pid = (pid_t)iflp->l_pid;
117 switch (iflp->l_type) {
118 case IBCS2_F_RDLCK:
119 flp->l_type = F_RDLCK;
120 break;
121 case IBCS2_F_WRLCK:
122 flp->l_type = F_WRLCK;
123 break;
124 case IBCS2_F_UNLCK:
125 flp->l_type = F_UNLCK;
126 break;
127 }
128 flp->l_whence = iflp->l_whence;
129 }
130
131 /* convert iBCS2 mode into NetBSD mode */
132 static int
133 ioflags2oflags(flags)
134 int flags;
135 {
136 int r = 0;
137
138 if (flags & IBCS2_O_RDONLY) r |= O_RDONLY;
139 if (flags & IBCS2_O_WRONLY) r |= O_WRONLY;
140 if (flags & IBCS2_O_RDWR) r |= O_RDWR;
141 if (flags & IBCS2_O_NDELAY) r |= O_NONBLOCK;
142 if (flags & IBCS2_O_APPEND) r |= O_APPEND;
143 if (flags & IBCS2_O_SYNC) r |= O_FSYNC;
144 if (flags & IBCS2_O_NONBLOCK) r |= O_NONBLOCK;
145 if (flags & IBCS2_O_CREAT) r |= O_CREAT;
146 if (flags & IBCS2_O_TRUNC) r |= O_TRUNC;
147 if (flags & IBCS2_O_EXCL) r |= O_EXCL;
148 if (flags & IBCS2_O_NOCTTY) r |= O_NOCTTY;
149 return r;
150 }
151
152 /* convert NetBSD mode into iBCS2 mode */
153 static int
154 oflags2ioflags(flags)
155 int flags;
156 {
157 int r = 0;
158
159 if (flags & O_RDONLY) r |= IBCS2_O_RDONLY;
160 if (flags & O_WRONLY) r |= IBCS2_O_WRONLY;
161 if (flags & O_RDWR) r |= IBCS2_O_RDWR;
162 if (flags & O_NDELAY) r |= IBCS2_O_NONBLOCK;
163 if (flags & O_APPEND) r |= IBCS2_O_APPEND;
164 if (flags & O_FSYNC) r |= IBCS2_O_SYNC;
165 if (flags & O_NONBLOCK) r |= IBCS2_O_NONBLOCK;
166 if (flags & O_CREAT) r |= IBCS2_O_CREAT;
167 if (flags & O_TRUNC) r |= IBCS2_O_TRUNC;
168 if (flags & O_EXCL) r |= IBCS2_O_EXCL;
169 if (flags & O_NOCTTY) r |= IBCS2_O_NOCTTY;
170 return r;
171 }
172
173 int
174 ibcs2_open(p, uap, retval)
175 struct proc *p;
176 struct ibcs2_open_args *uap;
177 int *retval;
178 {
179 int noctty = SCARG(uap, flags) & IBCS2_O_NOCTTY;
180 int ret;
181 caddr_t sg = stackgap_init();
182
183 SCARG(uap, flags) = cvt_o_flags(SCARG(uap, flags));
184 if (SCARG(uap, flags) & O_CREAT)
185 CHECKALTCREAT(p, &sg, SCARG(uap, path));
186 else
187 CHECKALTEXIST(p, &sg, SCARG(uap, path));
188 ret = open(p, (struct open_args *)uap, retval);
189
190 #ifdef SPX_HACK
191 if(ret == ENXIO)
192 if(!strcmp(SCARG(uap, path), "/compat/ibcs2/dev/spx"))
193 ret = spx_open(p, uap, retval);
194 else
195 #endif /* SPX_HACK */
196 if (!ret && !noctty && SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) {
197 struct filedesc *fdp = p->p_fd;
198 struct file *fp = fdp->fd_ofiles[*retval];
199
200 /* ignore any error, just give it a try */
201 if (fp->f_type == DTYPE_VNODE)
202 (fp->f_ops->fo_ioctl)(fp, TIOCSCTTY, (caddr_t) 0, p);
203 }
204 return ret;
205 }
206
207 int
208 ibcs2_creat(p, uap, retval)
209 struct proc *p;
210 struct ibcs2_creat_args *uap;
211 int *retval;
212 {
213 struct open_args cup;
214 caddr_t sg = stackgap_init();
215
216 CHECKALTCREAT(p, &sg, SCARG(uap, path));
217 SCARG(&cup, path) = SCARG(uap, path);
218 SCARG(&cup, mode) = SCARG(uap, mode);
219 SCARG(&cup, flags) = O_WRONLY | O_CREAT | O_TRUNC;
220 return open(p, &cup, retval);
221 }
222
223 int
224 ibcs2_access(p, uap, retval)
225 struct proc *p;
226 struct ibcs2_access_args *uap;
227 int *retval;
228 {
229 struct access_args cup;
230 caddr_t sg = stackgap_init();
231
232 CHECKALTEXIST(p, &sg, SCARG(uap, path));
233 SCARG(&cup, path) = SCARG(uap, path);
234 SCARG(&cup, flags) = SCARG(uap, flags);
235 return access(p, &cup, retval);
236 }
237
238 int
239 ibcs2_fcntl(p, uap, retval)
240 struct proc *p;
241 struct ibcs2_fcntl_args *uap;
242 int *retval;
243 {
244 int error;
245 struct fcntl_args fa;
246 struct flock *flp;
247 struct ibcs2_flock ifl;
248
249 switch(SCARG(uap, cmd)) {
250 case IBCS2_F_DUPFD:
251 SCARG(&fa, fd) = SCARG(uap, fd);
252 SCARG(&fa, cmd) = F_DUPFD;
253 SCARG(&fa, arg) = (/* XXX */ int)SCARG(uap, arg);
254 return fcntl(p, &fa, retval);
255 case IBCS2_F_GETFD:
256 SCARG(&fa, fd) = SCARG(uap, fd);
257 SCARG(&fa, cmd) = F_GETFD;
258 SCARG(&fa, arg) = (/* XXX */ int)SCARG(uap, arg);
259 return fcntl(p, &fa, retval);
260 case IBCS2_F_SETFD:
261 SCARG(&fa, fd) = SCARG(uap, fd);
262 SCARG(&fa, cmd) = F_SETFD;
263 SCARG(&fa, arg) = (/* XXX */ int)SCARG(uap, arg);
264 return fcntl(p, &fa, retval);
265 case IBCS2_F_GETFL:
266 SCARG(&fa, fd) = SCARG(uap, fd);
267 SCARG(&fa, cmd) = F_GETFL;
268 SCARG(&fa, arg) = (/* XXX */ int)SCARG(uap, arg);
269 error = fcntl(p, &fa, retval);
270 if (error)
271 return error;
272 *retval = oflags2ioflags(*retval);
273 return error;
274 case IBCS2_F_SETFL:
275 SCARG(&fa, fd) = SCARG(uap, fd);
276 SCARG(&fa, cmd) = F_SETFL;
277 SCARG(&fa, arg) = (/* XXX */ int)
278 ioflags2oflags((int)SCARG(uap, arg));
279 return fcntl(p, &fa, retval);
280
281 case IBCS2_F_GETLK:
282 {
283 caddr_t sg = stackgap_init();
284 flp = stackgap_alloc(&sg, sizeof(*flp));
285 error = copyin((caddr_t)SCARG(uap, arg), (caddr_t)&ifl,
286 ibcs2_flock_len);
287 if (error)
288 return error;
289 cvt_iflock2flock(&ifl, flp);
290 SCARG(&fa, fd) = SCARG(uap, fd);
291 SCARG(&fa, cmd) = F_GETLK;
292 SCARG(&fa, arg) = (/* XXX */ int)flp;
293 error = fcntl(p, &fa, retval);
294 if (error)
295 return error;
296 cvt_flock2iflock(flp, &ifl);
297 return copyout((caddr_t)&ifl, (caddr_t)SCARG(uap, arg),
298 ibcs2_flock_len);
299 }
300
301 case IBCS2_F_SETLK:
302 {
303 caddr_t sg = stackgap_init();
304 flp = stackgap_alloc(&sg, sizeof(*flp));
305 error = copyin((caddr_t)SCARG(uap, arg), (caddr_t)&ifl,
306 ibcs2_flock_len);
307 if (error)
308 return error;
309 cvt_iflock2flock(&ifl, flp);
310 SCARG(&fa, fd) = SCARG(uap, fd);
311 SCARG(&fa, cmd) = F_SETLK;
312 SCARG(&fa, arg) = (/* XXX */ int)flp;
313
314 return fcntl(p, &fa, retval);
315 }
316
317 case IBCS2_F_SETLKW:
318 {
319 caddr_t sg = stackgap_init();
320 flp = stackgap_alloc(&sg, sizeof(*flp));
321 error = copyin((caddr_t)SCARG(uap, arg), (caddr_t)&ifl,
322 ibcs2_flock_len);
323 if (error)
324 return error;
325 cvt_iflock2flock(&ifl, flp);
326 SCARG(&fa, fd) = SCARG(uap, fd);
327 SCARG(&fa, cmd) = F_SETLKW;
328 SCARG(&fa, arg) = (/* XXX */ int)flp;
329 return fcntl(p, &fa, retval);
330 }
331 }
332 return ENOSYS;
333 }
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