ibcs2_fcntl.c revision 51418
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: head/sys/i386/ibcs2/ibcs2_fcntl.c 51418 1999-09-19 17:00:25Z green $ 28 */ 29 30#include "opt_spx_hack.h" 31 32#include <sys/param.h> 33#include <sys/systm.h> 34#include <sys/fcntl.h> 35#include <sys/file.h> 36#include <sys/filedesc.h> 37#include <sys/ttycom.h> 38#include <sys/sysproto.h> 39 40#include <i386/ibcs2/ibcs2_fcntl.h> 41#include <i386/ibcs2/ibcs2_signal.h> 42#include <i386/ibcs2/ibcs2_proto.h> 43#include <i386/ibcs2/ibcs2_util.h> 44 45static void cvt_iflock2flock __P((struct ibcs2_flock *, struct flock *)); 46static void cvt_flock2iflock __P((struct flock *, struct ibcs2_flock *)); 47static int cvt_o_flags __P((int)); 48static int oflags2ioflags __P((int)); 49static int ioflags2oflags __P((int)); 50 51static int 52cvt_o_flags(flags) 53 int flags; 54{ 55 int r = 0; 56 57 /* convert mode into NetBSD mode */ 58 if (flags & IBCS2_O_WRONLY) r |= O_WRONLY; 59 if (flags & IBCS2_O_RDWR) r |= O_RDWR; 60 if (flags & (IBCS2_O_NDELAY | IBCS2_O_NONBLOCK)) r |= O_NONBLOCK; 61 if (flags & IBCS2_O_APPEND) r |= O_APPEND; 62 if (flags & IBCS2_O_SYNC) r |= O_FSYNC; 63 if (flags & IBCS2_O_CREAT) r |= O_CREAT; 64 if (flags & IBCS2_O_TRUNC) r |= O_TRUNC /* | O_CREAT ??? */; 65 if (flags & IBCS2_O_EXCL) r |= O_EXCL; 66 if (flags & IBCS2_O_RDONLY) r |= O_RDONLY; 67 if (flags & IBCS2_O_PRIV) r |= O_EXLOCK; 68 if (flags & IBCS2_O_NOCTTY) r |= O_NOCTTY; 69 return r; 70} 71 72static void 73cvt_flock2iflock(flp, iflp) 74 struct flock *flp; 75 struct ibcs2_flock *iflp; 76{ 77 switch (flp->l_type) { 78 case F_RDLCK: 79 iflp->l_type = IBCS2_F_RDLCK; 80 break; 81 case F_WRLCK: 82 iflp->l_type = IBCS2_F_WRLCK; 83 break; 84 case F_UNLCK: 85 iflp->l_type = IBCS2_F_UNLCK; 86 break; 87 } 88 iflp->l_whence = (short)flp->l_whence; 89 iflp->l_start = (ibcs2_off_t)flp->l_start; 90 iflp->l_len = (ibcs2_off_t)flp->l_len; 91 iflp->l_sysid = 0; 92 iflp->l_pid = (ibcs2_pid_t)flp->l_pid; 93} 94 95#ifdef DEBUG_IBCS2 96static void 97print_flock(struct flock *flp) 98{ 99 printf("flock: start=%x len=%x pid=%d type=%d whence=%d\n", 100 (int)flp->l_start, (int)flp->l_len, (int)flp->l_pid, 101 flp->l_type, flp->l_whence); 102} 103#endif 104 105static void 106cvt_iflock2flock(iflp, flp) 107 struct ibcs2_flock *iflp; 108 struct flock *flp; 109{ 110 flp->l_start = (off_t)iflp->l_start; 111 flp->l_len = (off_t)iflp->l_len; 112 flp->l_pid = (pid_t)iflp->l_pid; 113 switch (iflp->l_type) { 114 case IBCS2_F_RDLCK: 115 flp->l_type = F_RDLCK; 116 break; 117 case IBCS2_F_WRLCK: 118 flp->l_type = F_WRLCK; 119 break; 120 case IBCS2_F_UNLCK: 121 flp->l_type = F_UNLCK; 122 break; 123 } 124 flp->l_whence = iflp->l_whence; 125} 126 127/* convert iBCS2 mode into NetBSD mode */ 128static int 129ioflags2oflags(flags) 130 int flags; 131{ 132 int r = 0; 133 134 if (flags & IBCS2_O_RDONLY) r |= O_RDONLY; 135 if (flags & IBCS2_O_WRONLY) r |= O_WRONLY; 136 if (flags & IBCS2_O_RDWR) r |= O_RDWR; 137 if (flags & IBCS2_O_NDELAY) r |= O_NONBLOCK; 138 if (flags & IBCS2_O_APPEND) r |= O_APPEND; 139 if (flags & IBCS2_O_SYNC) r |= O_FSYNC; 140 if (flags & IBCS2_O_NONBLOCK) r |= O_NONBLOCK; 141 if (flags & IBCS2_O_CREAT) r |= O_CREAT; 142 if (flags & IBCS2_O_TRUNC) r |= O_TRUNC; 143 if (flags & IBCS2_O_EXCL) r |= O_EXCL; 144 if (flags & IBCS2_O_NOCTTY) r |= O_NOCTTY; 145 return r; 146} 147 148/* convert NetBSD mode into iBCS2 mode */ 149static int 150oflags2ioflags(flags) 151 int flags; 152{ 153 int r = 0; 154 155 if (flags & O_RDONLY) r |= IBCS2_O_RDONLY; 156 if (flags & O_WRONLY) r |= IBCS2_O_WRONLY; 157 if (flags & O_RDWR) r |= IBCS2_O_RDWR; 158 if (flags & O_NDELAY) r |= IBCS2_O_NONBLOCK; 159 if (flags & O_APPEND) r |= IBCS2_O_APPEND; 160 if (flags & O_FSYNC) r |= IBCS2_O_SYNC; 161 if (flags & O_NONBLOCK) r |= IBCS2_O_NONBLOCK; 162 if (flags & O_CREAT) r |= IBCS2_O_CREAT; 163 if (flags & O_TRUNC) r |= IBCS2_O_TRUNC; 164 if (flags & O_EXCL) r |= IBCS2_O_EXCL; 165 if (flags & O_NOCTTY) r |= IBCS2_O_NOCTTY; 166 return r; 167} 168 169int 170ibcs2_open(p, uap) 171 struct proc *p; 172 struct ibcs2_open_args *uap; 173{ 174 int noctty = SCARG(uap, flags) & IBCS2_O_NOCTTY; 175 int ret; 176 caddr_t sg = stackgap_init(); 177 178 SCARG(uap, flags) = cvt_o_flags(SCARG(uap, flags)); 179 if (SCARG(uap, flags) & O_CREAT) 180 CHECKALTCREAT(p, &sg, SCARG(uap, path)); 181 else 182 CHECKALTEXIST(p, &sg, SCARG(uap, path)); 183 ret = open(p, (struct open_args *)uap); 184 185#ifdef SPX_HACK 186 if (ret == ENXIO) { 187 if (!strcmp(SCARG(uap, path), "/compat/ibcs2/dev/spx")) 188 ret = spx_open(p, uap); 189 } else 190#endif /* SPX_HACK */ 191 if (!ret && !noctty && SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) { 192 struct filedesc *fdp = p->p_fd; 193 struct file *fp = fdp->fd_ofiles[p->p_retval[0]]; 194 195 /* ignore any error, just give it a try */ 196 if (fp->f_type == DTYPE_VNODE) 197 fo_ioctl(fp, TIOCSCTTY, (caddr_t) 0, p); 198 } 199 return ret; 200} 201 202int 203ibcs2_creat(p, uap) 204 struct proc *p; 205 struct ibcs2_creat_args *uap; 206{ 207 struct open_args cup; 208 caddr_t sg = stackgap_init(); 209 210 CHECKALTCREAT(p, &sg, SCARG(uap, path)); 211 SCARG(&cup, path) = SCARG(uap, path); 212 SCARG(&cup, mode) = SCARG(uap, mode); 213 SCARG(&cup, flags) = O_WRONLY | O_CREAT | O_TRUNC; 214 return open(p, &cup); 215} 216 217int 218ibcs2_access(p, uap) 219 struct proc *p; 220 struct ibcs2_access_args *uap; 221{ 222 struct access_args cup; 223 caddr_t sg = stackgap_init(); 224 225 CHECKALTEXIST(p, &sg, SCARG(uap, path)); 226 SCARG(&cup, path) = SCARG(uap, path); 227 SCARG(&cup, flags) = SCARG(uap, flags); 228 return access(p, &cup); 229} 230 231int 232ibcs2_fcntl(p, uap) 233 struct proc *p; 234 struct ibcs2_fcntl_args *uap; 235{ 236 int error; 237 struct fcntl_args fa; 238 struct flock *flp; 239 struct ibcs2_flock ifl; 240 241 switch(SCARG(uap, cmd)) { 242 case IBCS2_F_DUPFD: 243 SCARG(&fa, fd) = SCARG(uap, fd); 244 SCARG(&fa, cmd) = F_DUPFD; 245 SCARG(&fa, arg) = (/* XXX */ int)SCARG(uap, arg); 246 return fcntl(p, &fa); 247 case IBCS2_F_GETFD: 248 SCARG(&fa, fd) = SCARG(uap, fd); 249 SCARG(&fa, cmd) = F_GETFD; 250 SCARG(&fa, arg) = (/* XXX */ int)SCARG(uap, arg); 251 return fcntl(p, &fa); 252 case IBCS2_F_SETFD: 253 SCARG(&fa, fd) = SCARG(uap, fd); 254 SCARG(&fa, cmd) = F_SETFD; 255 SCARG(&fa, arg) = (/* XXX */ int)SCARG(uap, arg); 256 return fcntl(p, &fa); 257 case IBCS2_F_GETFL: 258 SCARG(&fa, fd) = SCARG(uap, fd); 259 SCARG(&fa, cmd) = F_GETFL; 260 SCARG(&fa, arg) = (/* XXX */ int)SCARG(uap, arg); 261 error = fcntl(p, &fa); 262 if (error) 263 return error; 264 p->p_retval[0] = oflags2ioflags(p->p_retval[0]); 265 return error; 266 case IBCS2_F_SETFL: 267 SCARG(&fa, fd) = SCARG(uap, fd); 268 SCARG(&fa, cmd) = F_SETFL; 269 SCARG(&fa, arg) = (/* XXX */ int) 270 ioflags2oflags((int)SCARG(uap, arg)); 271 return fcntl(p, &fa); 272 273 case IBCS2_F_GETLK: 274 { 275 caddr_t sg = stackgap_init(); 276 flp = stackgap_alloc(&sg, sizeof(*flp)); 277 error = copyin((caddr_t)SCARG(uap, arg), (caddr_t)&ifl, 278 ibcs2_flock_len); 279 if (error) 280 return error; 281 cvt_iflock2flock(&ifl, flp); 282 SCARG(&fa, fd) = SCARG(uap, fd); 283 SCARG(&fa, cmd) = F_GETLK; 284 SCARG(&fa, arg) = (/* XXX */ int)flp; 285 error = fcntl(p, &fa); 286 if (error) 287 return error; 288 cvt_flock2iflock(flp, &ifl); 289 return copyout((caddr_t)&ifl, (caddr_t)SCARG(uap, arg), 290 ibcs2_flock_len); 291 } 292 293 case IBCS2_F_SETLK: 294 { 295 caddr_t sg = stackgap_init(); 296 flp = stackgap_alloc(&sg, sizeof(*flp)); 297 error = copyin((caddr_t)SCARG(uap, arg), (caddr_t)&ifl, 298 ibcs2_flock_len); 299 if (error) 300 return error; 301 cvt_iflock2flock(&ifl, flp); 302 SCARG(&fa, fd) = SCARG(uap, fd); 303 SCARG(&fa, cmd) = F_SETLK; 304 SCARG(&fa, arg) = (/* XXX */ int)flp; 305 306 return fcntl(p, &fa); 307 } 308 309 case IBCS2_F_SETLKW: 310 { 311 caddr_t sg = stackgap_init(); 312 flp = stackgap_alloc(&sg, sizeof(*flp)); 313 error = copyin((caddr_t)SCARG(uap, arg), (caddr_t)&ifl, 314 ibcs2_flock_len); 315 if (error) 316 return error; 317 cvt_iflock2flock(&ifl, flp); 318 SCARG(&fa, fd) = SCARG(uap, fd); 319 SCARG(&fa, cmd) = F_SETLKW; 320 SCARG(&fa, arg) = (/* XXX */ int)flp; 321 return fcntl(p, &fa); 322 } 323 } 324 return ENOSYS; 325} 326