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
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD: releng/6.1/sys/i386/ibcs2/ibcs2_fcntl.c 141488 2005-02-07 22:02:18Z jhb $");
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/lock.h>
39 #include <sys/malloc.h>
40 #include <sys/mutex.h>
41 #include <sys/syscallsubr.h>
42 #include <sys/sysproto.h>
43 #include <sys/ttycom.h>
44
45 #include <i386/ibcs2/ibcs2_fcntl.h>
46 #include <i386/ibcs2/ibcs2_signal.h>
47 #include <i386/ibcs2/ibcs2_proto.h>
48 #include <i386/ibcs2/ibcs2_util.h>
49
50 static void cvt_iflock2flock(struct ibcs2_flock *, struct flock *);
51 static void cvt_flock2iflock(struct flock *, struct ibcs2_flock *);
52 static int cvt_o_flags(int);
53 static int oflags2ioflags(int);
54 static int ioflags2oflags(int);
55
56 static int
57 cvt_o_flags(flags)
58 int flags;
59 {
60 int r = 0;
61
62 /* convert mode into NetBSD mode */
63 if (flags & IBCS2_O_WRONLY) r |= O_WRONLY;
64 if (flags & IBCS2_O_RDWR) r |= O_RDWR;
65 if (flags & (IBCS2_O_NDELAY | IBCS2_O_NONBLOCK)) r |= O_NONBLOCK;
66 if (flags & IBCS2_O_APPEND) r |= O_APPEND;
67 if (flags & IBCS2_O_SYNC) r |= O_FSYNC;
68 if (flags & IBCS2_O_CREAT) r |= O_CREAT;
69 if (flags & IBCS2_O_TRUNC) r |= O_TRUNC /* | O_CREAT ??? */;
70 if (flags & IBCS2_O_EXCL) r |= O_EXCL;
71 if (flags & IBCS2_O_RDONLY) r |= O_RDONLY;
72 if (flags & IBCS2_O_PRIV) r |= O_EXLOCK;
73 if (flags & IBCS2_O_NOCTTY) r |= O_NOCTTY;
74 return r;
75 }
76
77 static void
78 cvt_flock2iflock(flp, iflp)
79 struct flock *flp;
80 struct ibcs2_flock *iflp;
81 {
82 switch (flp->l_type) {
83 case F_RDLCK:
84 iflp->l_type = IBCS2_F_RDLCK;
85 break;
86 case F_WRLCK:
87 iflp->l_type = IBCS2_F_WRLCK;
88 break;
89 case F_UNLCK:
90 iflp->l_type = IBCS2_F_UNLCK;
91 break;
92 }
93 iflp->l_whence = (short)flp->l_whence;
94 iflp->l_start = (ibcs2_off_t)flp->l_start;
95 iflp->l_len = (ibcs2_off_t)flp->l_len;
96 iflp->l_sysid = 0;
97 iflp->l_pid = (ibcs2_pid_t)flp->l_pid;
98 }
99
100 #ifdef DEBUG_IBCS2
101 static void
102 print_flock(struct flock *flp)
103 {
104 printf("flock: start=%x len=%x pid=%d type=%d whence=%d\n",
105 (int)flp->l_start, (int)flp->l_len, (int)flp->l_pid,
106 flp->l_type, flp->l_whence);
107 }
108 #endif
109
110 static void
111 cvt_iflock2flock(iflp, flp)
112 struct ibcs2_flock *iflp;
113 struct flock *flp;
114 {
115 flp->l_start = (off_t)iflp->l_start;
116 flp->l_len = (off_t)iflp->l_len;
117 flp->l_pid = (pid_t)iflp->l_pid;
118 switch (iflp->l_type) {
119 case IBCS2_F_RDLCK:
120 flp->l_type = F_RDLCK;
121 break;
122 case IBCS2_F_WRLCK:
123 flp->l_type = F_WRLCK;
124 break;
125 case IBCS2_F_UNLCK:
126 flp->l_type = F_UNLCK;
127 break;
128 }
129 flp->l_whence = iflp->l_whence;
130 }
131
132 /* convert iBCS2 mode into NetBSD mode */
133 static int
134 ioflags2oflags(flags)
135 int flags;
136 {
137 int r = 0;
138
139 if (flags & IBCS2_O_RDONLY) r |= O_RDONLY;
140 if (flags & IBCS2_O_WRONLY) r |= O_WRONLY;
141 if (flags & IBCS2_O_RDWR) r |= O_RDWR;
142 if (flags & IBCS2_O_NDELAY) r |= O_NONBLOCK;
143 if (flags & IBCS2_O_APPEND) r |= O_APPEND;
144 if (flags & IBCS2_O_SYNC) r |= O_FSYNC;
145 if (flags & IBCS2_O_NONBLOCK) r |= O_NONBLOCK;
146 if (flags & IBCS2_O_CREAT) r |= O_CREAT;
147 if (flags & IBCS2_O_TRUNC) r |= O_TRUNC;
148 if (flags & IBCS2_O_EXCL) r |= O_EXCL;
149 if (flags & IBCS2_O_NOCTTY) r |= O_NOCTTY;
150 return r;
151 }
152
153 /* convert NetBSD mode into iBCS2 mode */
154 static int
155 oflags2ioflags(flags)
156 int flags;
157 {
158 int r = 0;
159
160 if (flags & O_RDONLY) r |= IBCS2_O_RDONLY;
161 if (flags & O_WRONLY) r |= IBCS2_O_WRONLY;
162 if (flags & O_RDWR) r |= IBCS2_O_RDWR;
163 if (flags & O_NDELAY) r |= IBCS2_O_NONBLOCK;
164 if (flags & O_APPEND) r |= IBCS2_O_APPEND;
165 if (flags & O_FSYNC) r |= IBCS2_O_SYNC;
166 if (flags & O_NONBLOCK) r |= IBCS2_O_NONBLOCK;
167 if (flags & O_CREAT) r |= IBCS2_O_CREAT;
168 if (flags & O_TRUNC) r |= IBCS2_O_TRUNC;
169 if (flags & O_EXCL) r |= IBCS2_O_EXCL;
170 if (flags & O_NOCTTY) r |= IBCS2_O_NOCTTY;
171 return r;
172 }
173
174 int
175 ibcs2_open(td, uap)
176 struct thread *td;
177 struct ibcs2_open_args *uap;
178 {
179 struct proc *p;
180 char *path;
181 int flags, noctty, ret;
182
183 p = td->td_proc;
184 noctty = uap->flags & IBCS2_O_NOCTTY;
185 flags = cvt_o_flags(uap->flags);
186 if (uap->flags & O_CREAT)
187 CHECKALTCREAT(td, uap->path, &path);
188 else
189 CHECKALTEXIST(td, uap->path, &path);
190 ret = kern_open(td, path, UIO_SYSSPACE, flags, uap->mode);
191
192 #ifdef SPX_HACK
193 if (ret == ENXIO) {
194 if (!strcmp(path, "/compat/ibcs2/dev/spx"))
195 ret = spx_open(td);
196 free(path, M_TEMP);
197 } else
198 #endif /* SPX_HACK */
199 free(path, M_TEMP);
200 PROC_LOCK(p);
201 if (!ret && !noctty && SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) {
202 struct file *fp;
203 int error;
204
205 error = fget(td, td->td_retval[0], &fp);
206 PROC_UNLOCK(p);
207 if (error)
208 return (EBADF);
209
210 /* ignore any error, just give it a try */
211 if (fp->f_type == DTYPE_VNODE)
212 fo_ioctl(fp, TIOCSCTTY, (caddr_t) 0, td->td_ucred,
213 td);
214 fdrop(fp, td);
215 } else
216 PROC_UNLOCK(p);
217 return ret;
218 }
219
220 int
221 ibcs2_creat(td, uap)
222 struct thread *td;
223 struct ibcs2_creat_args *uap;
224 {
225 char *path;
226 int error;
227
228 CHECKALTCREAT(td, uap->path, &path);
229 error = kern_open(td, path, UIO_SYSSPACE, O_WRONLY | O_CREAT | O_TRUNC,
230 uap->mode);
231 free(path, M_TEMP);
232 return (error);
233 }
234
235 int
236 ibcs2_access(td, uap)
237 struct thread *td;
238 struct ibcs2_access_args *uap;
239 {
240 char *path;
241 int error;
242
243 CHECKALTEXIST(td, uap->path, &path);
244 error = kern_access(td, path, UIO_SYSSPACE, uap->flags);
245 free(path, M_TEMP);
246 return (error);
247 }
248
249 int
250 ibcs2_fcntl(td, uap)
251 struct thread *td;
252 struct ibcs2_fcntl_args *uap;
253 {
254 intptr_t arg;
255 int error;
256 struct flock fl;
257 struct ibcs2_flock ifl;
258
259 arg = (intptr_t)uap->arg;
260 switch(uap->cmd) {
261 case IBCS2_F_DUPFD:
262 return (kern_fcntl(td, uap->fd, F_DUPFD, arg));
263 case IBCS2_F_GETFD:
264 return (kern_fcntl(td, uap->fd, F_GETFD, arg));
265 case IBCS2_F_SETFD:
266 return (kern_fcntl(td, uap->fd, F_SETFD, arg));
267 case IBCS2_F_GETFL:
268 error = kern_fcntl(td, uap->fd, F_GETFL, arg);
269 if (error)
270 return error;
271 td->td_retval[0] = oflags2ioflags(td->td_retval[0]);
272 return error;
273 case IBCS2_F_SETFL:
274 return (kern_fcntl(td, uap->fd, F_SETFL,
275 ioflags2oflags(arg)));
276
277 case IBCS2_F_GETLK:
278 {
279 error = copyin((caddr_t)uap->arg, (caddr_t)&ifl,
280 ibcs2_flock_len);
281 if (error)
282 return error;
283 cvt_iflock2flock(&ifl, &fl);
284 error = kern_fcntl(td, uap->fd, F_GETLK, (intptr_t)&fl);
285 if (error)
286 return error;
287 cvt_flock2iflock(&fl, &ifl);
288 return copyout((caddr_t)&ifl, (caddr_t)uap->arg,
289 ibcs2_flock_len);
290 }
291
292 case IBCS2_F_SETLK:
293 {
294 error = copyin((caddr_t)uap->arg, (caddr_t)&ifl,
295 ibcs2_flock_len);
296 if (error)
297 return error;
298 cvt_iflock2flock(&ifl, &fl);
299 return (kern_fcntl(td, uap->fd, F_SETLK, (intptr_t)&fl));
300 }
301
302 case IBCS2_F_SETLKW:
303 {
304 error = copyin((caddr_t)uap->arg, (caddr_t)&ifl,
305 ibcs2_flock_len);
306 if (error)
307 return error;
308 cvt_iflock2flock(&ifl, &fl);
309 return (kern_fcntl(td, uap->fd, F_SETLKW, (intptr_t)&fl));
310 }
311 }
312 return ENOSYS;
313 }
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