ibcs2_fcntl.c revision 24131
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 * $Id: ibcs2_fcntl.c,v 1.6 1997/02/22 09:33:18 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/fcntl.h> 35#include <sys/file.h> 36#include <sys/stat.h> 37#include <sys/filedesc.h> 38#include <sys/ioctl.h> 39#include <sys/kernel.h> 40#include <sys/mount.h> 41#include <sys/malloc.h> 42#include <sys/sysproto.h> 43 44#include <i386/ibcs2/ibcs2_types.h> 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 50static void cvt_iflock2flock __P((struct ibcs2_flock *, struct flock *)); 51static void cvt_flock2iflock __P((struct flock *, struct ibcs2_flock *)); 52static int cvt_o_flags __P((int)); 53static int oflags2ioflags __P((int)); 54static int ioflags2oflags __P((int)); 55 56static int 57cvt_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 77static void 78cvt_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 101static void 102print_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 110static void 111cvt_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 */ 133static int 134ioflags2oflags(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 */ 154static int 155oflags2ioflags(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 174int 175ibcs2_open(p, uap, retval) 176 struct proc *p; 177 struct ibcs2_open_args *uap; 178 int *retval; 179{ 180 int noctty = SCARG(uap, flags) & IBCS2_O_NOCTTY; 181 int ret; 182 caddr_t sg = stackgap_init(); 183 184 SCARG(uap, flags) = cvt_o_flags(SCARG(uap, flags)); 185 if (SCARG(uap, flags) & O_CREAT) 186 CHECKALTCREAT(p, &sg, SCARG(uap, path)); 187 else 188 CHECKALTEXIST(p, &sg, SCARG(uap, path)); 189 ret = open(p, (struct open_args *)uap, retval); 190 191#ifdef SPX_HACK 192 if(ret == ENXIO) 193 if(!strcmp(SCARG(uap, path), "/compat/ibcs2/dev/spx")) 194 ret = spx_open(p, uap, retval); 195 else 196#endif /* SPX_HACK */ 197 if (!ret && !noctty && SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) { 198 struct filedesc *fdp = p->p_fd; 199 struct file *fp = fdp->fd_ofiles[*retval]; 200 201 /* ignore any error, just give it a try */ 202 if (fp->f_type == DTYPE_VNODE) 203 (fp->f_ops->fo_ioctl)(fp, TIOCSCTTY, (caddr_t) 0, p); 204 } 205 return ret; 206} 207 208int 209ibcs2_creat(p, uap, retval) 210 struct proc *p; 211 struct ibcs2_creat_args *uap; 212 int *retval; 213{ 214 struct open_args cup; 215 caddr_t sg = stackgap_init(); 216 217 CHECKALTCREAT(p, &sg, SCARG(uap, path)); 218 SCARG(&cup, path) = SCARG(uap, path); 219 SCARG(&cup, mode) = SCARG(uap, mode); 220 SCARG(&cup, flags) = O_WRONLY | O_CREAT | O_TRUNC; 221 return open(p, &cup, retval); 222} 223 224int 225ibcs2_access(p, uap, retval) 226 struct proc *p; 227 struct ibcs2_access_args *uap; 228 int *retval; 229{ 230 struct access_args cup; 231 caddr_t sg = stackgap_init(); 232 233 CHECKALTEXIST(p, &sg, SCARG(uap, path)); 234 SCARG(&cup, path) = SCARG(uap, path); 235 SCARG(&cup, flags) = SCARG(uap, flags); 236 return access(p, &cup, retval); 237} 238 239int 240ibcs2_fcntl(p, uap, retval) 241 struct proc *p; 242 struct ibcs2_fcntl_args *uap; 243 int *retval; 244{ 245 int error; 246 struct fcntl_args fa; 247 struct flock *flp; 248 struct ibcs2_flock ifl; 249 250 switch(SCARG(uap, cmd)) { 251 case IBCS2_F_DUPFD: 252 SCARG(&fa, fd) = SCARG(uap, fd); 253 SCARG(&fa, cmd) = F_DUPFD; 254 SCARG(&fa, arg) = (/* XXX */ int)SCARG(uap, arg); 255 return fcntl(p, &fa, retval); 256 case IBCS2_F_GETFD: 257 SCARG(&fa, fd) = SCARG(uap, fd); 258 SCARG(&fa, cmd) = F_GETFD; 259 SCARG(&fa, arg) = (/* XXX */ int)SCARG(uap, arg); 260 return fcntl(p, &fa, retval); 261 case IBCS2_F_SETFD: 262 SCARG(&fa, fd) = SCARG(uap, fd); 263 SCARG(&fa, cmd) = F_SETFD; 264 SCARG(&fa, arg) = (/* XXX */ int)SCARG(uap, arg); 265 return fcntl(p, &fa, retval); 266 case IBCS2_F_GETFL: 267 SCARG(&fa, fd) = SCARG(uap, fd); 268 SCARG(&fa, cmd) = F_GETFL; 269 SCARG(&fa, arg) = (/* XXX */ int)SCARG(uap, arg); 270 error = fcntl(p, &fa, retval); 271 if (error) 272 return error; 273 *retval = oflags2ioflags(*retval); 274 return error; 275 case IBCS2_F_SETFL: 276 SCARG(&fa, fd) = SCARG(uap, fd); 277 SCARG(&fa, cmd) = F_SETFL; 278 SCARG(&fa, arg) = (/* XXX */ int) 279 ioflags2oflags((int)SCARG(uap, arg)); 280 return fcntl(p, &fa, retval); 281 282 case IBCS2_F_GETLK: 283 { 284 caddr_t sg = stackgap_init(); 285 flp = stackgap_alloc(&sg, sizeof(*flp)); 286 error = copyin((caddr_t)SCARG(uap, arg), (caddr_t)&ifl, 287 ibcs2_flock_len); 288 if (error) 289 return error; 290 cvt_iflock2flock(&ifl, flp); 291 SCARG(&fa, fd) = SCARG(uap, fd); 292 SCARG(&fa, cmd) = F_GETLK; 293 SCARG(&fa, arg) = (/* XXX */ int)flp; 294 error = fcntl(p, &fa, retval); 295 if (error) 296 return error; 297 cvt_flock2iflock(flp, &ifl); 298 return copyout((caddr_t)&ifl, (caddr_t)SCARG(uap, arg), 299 ibcs2_flock_len); 300 } 301 302 case IBCS2_F_SETLK: 303 { 304 caddr_t sg = stackgap_init(); 305 flp = stackgap_alloc(&sg, sizeof(*flp)); 306 error = copyin((caddr_t)SCARG(uap, arg), (caddr_t)&ifl, 307 ibcs2_flock_len); 308 if (error) 309 return error; 310 cvt_iflock2flock(&ifl, flp); 311 SCARG(&fa, fd) = SCARG(uap, fd); 312 SCARG(&fa, cmd) = F_SETLK; 313 SCARG(&fa, arg) = (/* XXX */ int)flp; 314 315 return fcntl(p, &fa, retval); 316 } 317 318 case IBCS2_F_SETLKW: 319 { 320 caddr_t sg = stackgap_init(); 321 flp = stackgap_alloc(&sg, sizeof(*flp)); 322 error = copyin((caddr_t)SCARG(uap, arg), (caddr_t)&ifl, 323 ibcs2_flock_len); 324 if (error) 325 return error; 326 cvt_iflock2flock(&ifl, flp); 327 SCARG(&fa, fd) = SCARG(uap, fd); 328 SCARG(&fa, cmd) = F_SETLKW; 329 SCARG(&fa, arg) = (/* XXX */ int)flp; 330 return fcntl(p, &fa, retval); 331 } 332 } 333 return ENOSYS; 334} 335