proc->thread stage 4: rework the VFS and DEVICE subsystems to take thread
[dragonfly.git] / sys / emulation / ibcs2 / i386 / ibcs2_fcntl.c
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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 1.14 1999/09/19 17:00:14 green Exp $
dadab5e9 28 * $DragonFly: src/sys/emulation/ibcs2/i386/Attic/ibcs2_fcntl.c,v 1.4 2003/06/25 03:55:53 dillon Exp $
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29 */
30
31#include "opt_spx_hack.h"
32
33#include <sys/param.h>
34#include <sys/systm.h>
35#include <sys/fcntl.h>
36#include <sys/file.h>
37#include <sys/filedesc.h>
38#include <sys/ttycom.h>
39#include <sys/sysproto.h>
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40#include <sys/proc.h>
41#include <sys/file2.h>
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42
43#include <i386/ibcs2/ibcs2_fcntl.h>
44#include <i386/ibcs2/ibcs2_signal.h>
45#include <i386/ibcs2/ibcs2_proto.h>
46#include <i386/ibcs2/ibcs2_util.h>
47
48static void cvt_iflock2flock __P((struct ibcs2_flock *, struct flock *));
49static void cvt_flock2iflock __P((struct flock *, struct ibcs2_flock *));
50static int cvt_o_flags __P((int));
51static int oflags2ioflags __P((int));
52static int ioflags2oflags __P((int));
53
54static int
55cvt_o_flags(flags)
56 int flags;
57{
58 int r = 0;
59
60 /* convert mode into NetBSD mode */
61 if (flags & IBCS2_O_WRONLY) r |= O_WRONLY;
62 if (flags & IBCS2_O_RDWR) r |= O_RDWR;
63 if (flags & (IBCS2_O_NDELAY | IBCS2_O_NONBLOCK)) r |= O_NONBLOCK;
64 if (flags & IBCS2_O_APPEND) r |= O_APPEND;
65 if (flags & IBCS2_O_SYNC) r |= O_FSYNC;
66 if (flags & IBCS2_O_CREAT) r |= O_CREAT;
67 if (flags & IBCS2_O_TRUNC) r |= O_TRUNC /* | O_CREAT ??? */;
68 if (flags & IBCS2_O_EXCL) r |= O_EXCL;
69 if (flags & IBCS2_O_RDONLY) r |= O_RDONLY;
70 if (flags & IBCS2_O_PRIV) r |= O_EXLOCK;
71 if (flags & IBCS2_O_NOCTTY) r |= O_NOCTTY;
72 return r;
73}
74
75static void
76cvt_flock2iflock(flp, iflp)
77 struct flock *flp;
78 struct ibcs2_flock *iflp;
79{
80 switch (flp->l_type) {
81 case F_RDLCK:
82 iflp->l_type = IBCS2_F_RDLCK;
83 break;
84 case F_WRLCK:
85 iflp->l_type = IBCS2_F_WRLCK;
86 break;
87 case F_UNLCK:
88 iflp->l_type = IBCS2_F_UNLCK;
89 break;
90 }
91 iflp->l_whence = (short)flp->l_whence;
92 iflp->l_start = (ibcs2_off_t)flp->l_start;
93 iflp->l_len = (ibcs2_off_t)flp->l_len;
94 iflp->l_sysid = 0;
95 iflp->l_pid = (ibcs2_pid_t)flp->l_pid;
96}
97
98#ifdef DEBUG_IBCS2
99static void
100print_flock(struct flock *flp)
101{
102 printf("flock: start=%x len=%x pid=%d type=%d whence=%d\n",
103 (int)flp->l_start, (int)flp->l_len, (int)flp->l_pid,
104 flp->l_type, flp->l_whence);
105}
106#endif
107
108static void
109cvt_iflock2flock(iflp, flp)
110 struct ibcs2_flock *iflp;
111 struct flock *flp;
112{
113 flp->l_start = (off_t)iflp->l_start;
114 flp->l_len = (off_t)iflp->l_len;
115 flp->l_pid = (pid_t)iflp->l_pid;
116 switch (iflp->l_type) {
117 case IBCS2_F_RDLCK:
118 flp->l_type = F_RDLCK;
119 break;
120 case IBCS2_F_WRLCK:
121 flp->l_type = F_WRLCK;
122 break;
123 case IBCS2_F_UNLCK:
124 flp->l_type = F_UNLCK;
125 break;
126 }
127 flp->l_whence = iflp->l_whence;
128}
129
130/* convert iBCS2 mode into NetBSD mode */
131static int
132ioflags2oflags(flags)
133 int flags;
134{
135 int r = 0;
136
137 if (flags & IBCS2_O_RDONLY) r |= O_RDONLY;
138 if (flags & IBCS2_O_WRONLY) r |= O_WRONLY;
139 if (flags & IBCS2_O_RDWR) r |= O_RDWR;
140 if (flags & IBCS2_O_NDELAY) r |= O_NONBLOCK;
141 if (flags & IBCS2_O_APPEND) r |= O_APPEND;
142 if (flags & IBCS2_O_SYNC) r |= O_FSYNC;
143 if (flags & IBCS2_O_NONBLOCK) r |= O_NONBLOCK;
144 if (flags & IBCS2_O_CREAT) r |= O_CREAT;
145 if (flags & IBCS2_O_TRUNC) r |= O_TRUNC;
146 if (flags & IBCS2_O_EXCL) r |= O_EXCL;
147 if (flags & IBCS2_O_NOCTTY) r |= O_NOCTTY;
148 return r;
149}
150
151/* convert NetBSD mode into iBCS2 mode */
152static int
153oflags2ioflags(flags)
154 int flags;
155{
156 int r = 0;
157
158 if (flags & O_RDONLY) r |= IBCS2_O_RDONLY;
159 if (flags & O_WRONLY) r |= IBCS2_O_WRONLY;
160 if (flags & O_RDWR) r |= IBCS2_O_RDWR;
161 if (flags & O_NDELAY) r |= IBCS2_O_NONBLOCK;
162 if (flags & O_APPEND) r |= IBCS2_O_APPEND;
163 if (flags & O_FSYNC) r |= IBCS2_O_SYNC;
164 if (flags & O_NONBLOCK) r |= IBCS2_O_NONBLOCK;
165 if (flags & O_CREAT) r |= IBCS2_O_CREAT;
166 if (flags & O_TRUNC) r |= IBCS2_O_TRUNC;
167 if (flags & O_EXCL) r |= IBCS2_O_EXCL;
168 if (flags & O_NOCTTY) r |= IBCS2_O_NOCTTY;
169 return r;
170}
171
172int
41c20dac 173ibcs2_open(struct ibcs2_open_args *uap)
984263bc 174{
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175 struct thread *td = curthread; /* XXX */
176 struct proc *p;
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177 int noctty = SCARG(uap, flags) & IBCS2_O_NOCTTY;
178 int ret;
179 caddr_t sg = stackgap_init();
180
181 SCARG(uap, flags) = cvt_o_flags(SCARG(uap, flags));
182 if (SCARG(uap, flags) & O_CREAT)
41c20dac 183 CHECKALTCREAT(&sg, SCARG(uap, path));
984263bc 184 else
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185 CHECKALTEXIST(&sg, SCARG(uap, path));
186 ret = open((struct open_args *)uap);
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187
188#ifdef SPX_HACK
189 if (ret == ENXIO) {
190 if (!strcmp(SCARG(uap, path), "/compat/ibcs2/dev/spx"))
41c20dac 191 ret = spx_open(uap);
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192 } else
193#endif /* SPX_HACK */
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194 p = td->td_proc;
195 if (!ret && !noctty && p && SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) {
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196 struct filedesc *fdp = p->p_fd;
197 struct file *fp = fdp->fd_ofiles[p->p_retval[0]];
198
199 /* ignore any error, just give it a try */
200 if (fp->f_type == DTYPE_VNODE)
dadab5e9 201 fo_ioctl(fp, TIOCSCTTY, (caddr_t) 0, td);
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202 }
203 return ret;
204}
205
206int
41c20dac 207ibcs2_creat(struct ibcs2_creat_args *uap)
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208{
209 struct open_args cup;
210 caddr_t sg = stackgap_init();
211
41c20dac 212 CHECKALTCREAT(&sg, SCARG(uap, path));
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213 SCARG(&cup, path) = SCARG(uap, path);
214 SCARG(&cup, mode) = SCARG(uap, mode);
215 SCARG(&cup, flags) = O_WRONLY | O_CREAT | O_TRUNC;
41c20dac 216 return open(&cup);
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217}
218
219int
41c20dac 220ibcs2_access(struct ibcs2_access_args *uap)
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221{
222 struct access_args cup;
223 caddr_t sg = stackgap_init();
224
41c20dac 225 CHECKALTEXIST(&sg, SCARG(uap, path));
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226 SCARG(&cup, path) = SCARG(uap, path);
227 SCARG(&cup, flags) = SCARG(uap, flags);
41c20dac 228 return access(&cup);
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229}
230
231int
41c20dac 232ibcs2_fcntl(struct ibcs2_fcntl_args *uap)
984263bc 233{
41c20dac 234 struct proc *p = curproc;
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235 int error;
236 struct fcntl_args fa;
237 struct flock *flp;
238 struct ibcs2_flock ifl;
239
240 switch(SCARG(uap, cmd)) {
241 case IBCS2_F_DUPFD:
242 SCARG(&fa, fd) = SCARG(uap, fd);
243 SCARG(&fa, cmd) = F_DUPFD;
244 SCARG(&fa, arg) = (/* XXX */ int)SCARG(uap, arg);
41c20dac 245 return fcntl(&fa);
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246 case IBCS2_F_GETFD:
247 SCARG(&fa, fd) = SCARG(uap, fd);
248 SCARG(&fa, cmd) = F_GETFD;
249 SCARG(&fa, arg) = (/* XXX */ int)SCARG(uap, arg);
41c20dac 250 return fcntl(&fa);
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251 case IBCS2_F_SETFD:
252 SCARG(&fa, fd) = SCARG(uap, fd);
253 SCARG(&fa, cmd) = F_SETFD;
254 SCARG(&fa, arg) = (/* XXX */ int)SCARG(uap, arg);
41c20dac 255 return fcntl(&fa);
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256 case IBCS2_F_GETFL:
257 SCARG(&fa, fd) = SCARG(uap, fd);
258 SCARG(&fa, cmd) = F_GETFL;
259 SCARG(&fa, arg) = (/* XXX */ int)SCARG(uap, arg);
41c20dac 260 error = fcntl(&fa);
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261 if (error)
262 return error;
263 p->p_retval[0] = oflags2ioflags(p->p_retval[0]);
264 return error;
265 case IBCS2_F_SETFL:
266 SCARG(&fa, fd) = SCARG(uap, fd);
267 SCARG(&fa, cmd) = F_SETFL;
268 SCARG(&fa, arg) = (/* XXX */ int)
269 ioflags2oflags((int)SCARG(uap, arg));
41c20dac 270 return fcntl(&fa);
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271
272 case IBCS2_F_GETLK:
273 {
274 caddr_t sg = stackgap_init();
275 flp = stackgap_alloc(&sg, sizeof(*flp));
276 error = copyin((caddr_t)SCARG(uap, arg), (caddr_t)&ifl,
277 ibcs2_flock_len);
278 if (error)
279 return error;
280 cvt_iflock2flock(&ifl, flp);
281 SCARG(&fa, fd) = SCARG(uap, fd);
282 SCARG(&fa, cmd) = F_GETLK;
283 SCARG(&fa, arg) = (/* XXX */ int)flp;
41c20dac 284 error = fcntl(&fa);
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285 if (error)
286 return error;
287 cvt_flock2iflock(flp, &ifl);
288 return copyout((caddr_t)&ifl, (caddr_t)SCARG(uap, arg),
289 ibcs2_flock_len);
290 }
291
292 case IBCS2_F_SETLK:
293 {
294 caddr_t sg = stackgap_init();
295 flp = stackgap_alloc(&sg, sizeof(*flp));
296 error = copyin((caddr_t)SCARG(uap, arg), (caddr_t)&ifl,
297 ibcs2_flock_len);
298 if (error)
299 return error;
300 cvt_iflock2flock(&ifl, flp);
301 SCARG(&fa, fd) = SCARG(uap, fd);
302 SCARG(&fa, cmd) = F_SETLK;
303 SCARG(&fa, arg) = (/* XXX */ int)flp;
304
41c20dac 305 return fcntl(&fa);
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306 }
307
308 case IBCS2_F_SETLKW:
309 {
310 caddr_t sg = stackgap_init();
311 flp = stackgap_alloc(&sg, sizeof(*flp));
312 error = copyin((caddr_t)SCARG(uap, arg), (caddr_t)&ifl,
313 ibcs2_flock_len);
314 if (error)
315 return error;
316 cvt_iflock2flock(&ifl, flp);
317 SCARG(&fa, fd) = SCARG(uap, fd);
318 SCARG(&fa, cmd) = F_SETLKW;
319 SCARG(&fa, arg) = (/* XXX */ int)flp;
41c20dac 320 return fcntl(&fa);
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321 }
322 }
323 return ENOSYS;
324}