netbsd32_compat_30.c revision 1.19
1 /* $NetBSD: netbsd32_compat_30.c,v 1.19 2007/03/18 21:38:33 dsl Exp $ */ 2 3 /* 4 * Copyright (c) 1998, 2001 Matthew R. Green 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 23 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #include <sys/cdefs.h> 32 __KERNEL_RCSID(0, "$NetBSD: netbsd32_compat_30.c,v 1.19 2007/03/18 21:38:33 dsl Exp $"); 33 34 #include "opt_nfsserver.h" 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/malloc.h> 39 #include <sys/mount.h> 40 #include <sys/socket.h> 41 #include <sys/socketvar.h> 42 #include <sys/stat.h> 43 #include <sys/time.h> 44 #include <sys/ktrace.h> 45 #include <sys/resourcevar.h> 46 #include <sys/vnode.h> 47 #include <sys/file.h> 48 #include <sys/filedesc.h> 49 #include <sys/namei.h> 50 #include <sys/statvfs.h> 51 #include <sys/syscallargs.h> 52 #include <sys/proc.h> 53 #include <sys/dirent.h> 54 #include <sys/kauth.h> 55 #include <sys/vfs_syscalls.h> 56 57 #include <compat/netbsd32/netbsd32.h> 58 #include <compat/netbsd32/netbsd32_syscallargs.h> 59 #include <compat/netbsd32/netbsd32_conv.h> 60 #include <compat/sys/mount.h> 61 62 63 int 64 compat_30_netbsd32_getdents(l, v, retval) 65 struct lwp *l; 66 void *v; 67 register_t *retval; 68 { 69 struct compat_30_netbsd32_getdents_args /* { 70 syscallarg(int) fd; 71 syscallarg(netbsd32_charp) buf; 72 syscallarg(netbsd32_size_t) count; 73 } */ *uap = v; 74 struct file *fp; 75 int error, done; 76 char *buf; 77 netbsd32_size_t count; 78 struct proc *p = l->l_proc; 79 80 /* Limit the size on any kernel buffers used by VOP_READDIR */ 81 count = min(MAXBSIZE, SCARG(uap, count)); 82 83 /* getvnode() will use the descriptor for us */ 84 if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0) 85 return (error); 86 if ((fp->f_flag & FREAD) == 0) { 87 error = EBADF; 88 goto out; 89 } 90 buf = malloc(count, M_TEMP, M_WAITOK); 91 error = vn_readdir(fp, buf, UIO_SYSSPACE, count, &done, l, 0, 0); 92 if (error == 0) { 93 *retval = netbsd32_to_dirent12(buf, done); 94 error = copyout(buf, SCARG_P32(uap, buf), *retval); 95 } 96 free(buf, M_TEMP); 97 out: 98 FILE_UNUSE(fp, l); 99 return (error); 100 } 101 102 int 103 compat_30_netbsd32___stat13(l, v, retval) 104 struct lwp *l; 105 void *v; 106 register_t *retval; 107 { 108 struct compat_30_netbsd32___stat13_args /* { 109 syscallarg(const netbsd32_charp) path; 110 syscallarg(netbsd32_stat13p_t) ub; 111 } */ *uap = v; 112 struct netbsd32_stat13 sb32; 113 struct stat sb; 114 int error; 115 void *sg; 116 const char *path; 117 struct proc *p = l->l_proc; 118 119 path = SCARG_P32(uap, path); 120 sg = stackgap_init(p, 0); 121 CHECK_ALT_EXIST(l, &sg, path); 122 123 error = do_sys_stat(l, path, FOLLOW, &sb); 124 if (error) 125 return (error); 126 netbsd32_from___stat13(&sb, &sb32); 127 error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32)); 128 return (error); 129 } 130 131 int 132 compat_30_netbsd32___fstat13(l, v, retval) 133 struct lwp *l; 134 void *v; 135 register_t *retval; 136 { 137 struct compat_30_netbsd32___fstat13_args /* { 138 syscallarg(int) fd; 139 syscallarg(netbsd32_stat13p_t) sb; 140 } */ *uap = v; 141 int fd = SCARG(uap, fd); 142 struct proc *p = l->l_proc; 143 struct filedesc *fdp = p->p_fd; 144 struct file *fp; 145 struct netbsd32_stat13 sb32; 146 struct stat ub; 147 int error = 0; 148 149 if ((fp = fd_getfile(fdp, fd)) == NULL) 150 return (EBADF); 151 152 FILE_USE(fp); 153 error = (*fp->f_ops->fo_stat)(fp, &ub, l); 154 FILE_UNUSE(fp, l); 155 156 if (error == 0) { 157 netbsd32_from___stat13(&ub, &sb32); 158 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32)); 159 } 160 return (error); 161 } 162 163 int 164 compat_30_netbsd32___lstat13(l, v, retval) 165 struct lwp *l; 166 void *v; 167 register_t *retval; 168 { 169 struct compat_30_netbsd32___lstat13_args /* { 170 syscallarg(const netbsd32_charp) path; 171 syscallarg(netbsd32_stat13p_t) ub; 172 } */ *uap = v; 173 struct netbsd32_stat13 sb32; 174 struct stat sb; 175 int error; 176 void *sg; 177 const char *path; 178 struct proc *p = l->l_proc; 179 180 path = SCARG_P32(uap, path); 181 sg = stackgap_init(p, 0); 182 CHECK_ALT_EXIST(l, &sg, path); 183 184 error = do_sys_stat(l, path, NOFOLLOW, &sb); 185 if (error) 186 return (error); 187 netbsd32_from___stat13(&sb, &sb32); 188 error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32)); 189 return (error); 190 } 191 192 int 193 compat_30_netbsd32_fhstat(l, v, retval) 194 struct lwp *l; 195 void *v; 196 register_t *retval; 197 { 198 struct compat_30_netbsd32_fhstat_args /* { 199 syscallarg(const netbsd32_fhandlep_t) fhp; 200 syscallarg(netbsd32_stat13p_t) sb; 201 } */ *uap = v; 202 struct stat sb; 203 struct netbsd32_stat13 sb32; 204 int error; 205 struct compat_30_fhandle fh; 206 struct mount *mp; 207 struct vnode *vp; 208 209 /* 210 * Must be super user 211 */ 212 if ((error = kauth_authorize_system(l->l_cred, 213 KAUTH_SYSTEM_FILEHANDLE, 0, NULL, NULL, NULL))) 214 return (error); 215 216 if ((error = copyin(SCARG_P32(uap, fhp), &fh, sizeof(fh))) != 0) 217 return (error); 218 219 if ((mp = vfs_getvfs(&fh.fh_fsid)) == NULL) 220 return (ESTALE); 221 if (mp->mnt_op->vfs_fhtovp == NULL) 222 return EOPNOTSUPP; 223 if ((error = VFS_FHTOVP(mp, (struct fid*)&fh.fh_fid, &vp))) 224 return (error); 225 error = vn_stat(vp, &sb, l); 226 vput(vp); 227 if (error) 228 return (error); 229 netbsd32_from___stat13(&sb, &sb32); 230 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb)); 231 return (error); 232 } 233 234 int 235 compat_30_netbsd32_fhstatvfs1(l, v, retval) 236 struct lwp *l; 237 void *v; 238 register_t *retval; 239 { 240 struct compat_30_netbsd32_fhstatvfs1_args /* { 241 syscallarg(const netbsd32_fhandlep_t) fhp; 242 syscallarg(netbsd32_statvfsp_t) buf; 243 syscallarg(int) flags; 244 } */ *uap = v; 245 struct statvfs *sbuf; 246 struct netbsd32_statvfs *s32; 247 fhandle_t *fh; 248 struct vnode *vp; 249 int error; 250 251 /* 252 * Must be super user 253 */ 254 if ((error = kauth_authorize_system(l->l_cred, 255 KAUTH_SYSTEM_FILEHANDLE, 0, NULL, NULL, NULL)) != 0) 256 return error; 257 258 if ((error = vfs_copyinfh_alloc(SCARG_P32(uap, fhp), 259 FHANDLE_SIZE_COMPAT, &fh)) != 0) 260 goto bad; 261 if ((error = vfs_fhtovp(fh, &vp)) != 0) 262 goto bad; 263 264 sbuf = (struct statvfs *)malloc(sizeof(struct statvfs), M_TEMP, 265 M_WAITOK); 266 error = dostatvfs(vp->v_mount, sbuf, l, SCARG(uap, flags), 1); 267 vput(vp); 268 if (error != 0) 269 goto out; 270 271 s32 = (struct netbsd32_statvfs *) 272 malloc(sizeof(struct netbsd32_statvfs), M_TEMP, M_WAITOK); 273 netbsd32_from_statvfs(sbuf, s32); 274 error = copyout(s32, SCARG_P32(uap, buf), 275 sizeof(struct netbsd32_statvfs)); 276 free(s32, M_TEMP); 277 278 out: 279 free(sbuf, M_TEMP); 280 bad: 281 vfs_copyinfh_free(fh); 282 return (error); 283 } 284 285 int 286 compat_30_netbsd32_socket(l, v, retval) 287 struct lwp *l; 288 void *v; 289 register_t *retval; 290 { 291 struct compat_30_netbsd32_socket_args /* { 292 syscallarg(int) domain; 293 syscallarg(int) type; 294 syscallarg(int) protocol; 295 } */ *uap = v; 296 struct compat_30_sys_socket_args ua; 297 298 NETBSD32TO64_UAP(domain); 299 NETBSD32TO64_UAP(type); 300 NETBSD32TO64_UAP(protocol); 301 return (compat_30_sys_socket(l, &ua, retval)); 302 } 303 304 int 305 compat_30_netbsd32_getfh(l, v, retval) 306 struct lwp *l; 307 void *v; 308 register_t *retval; 309 { 310 struct compat_30_netbsd32_getfh_args /* { 311 syscallarg(const netbsd32_charp) fname; 312 syscallarg(netbsd32_compat_30_fhandlep_t) fhp; 313 } */ *uap = v; 314 struct compat_30_sys_getfh_args ua; 315 316 NETBSD32TOP_UAP(fname, const char); 317 NETBSD32TOP_UAP(fhp, struct compat_30_fhandle); 318 /* Lucky for us a fhandle_t doesn't change sizes */ 319 return (compat_30_sys_getfh(l, &ua, retval)); 320 } 321 322 323 int compat_30_netbsd32_sys___fhstat30(l, v, retval) 324 struct lwp *l; 325 void *v; 326 register_t *retval; 327 { 328 struct compat_30_netbsd32_sys___fhstat30_args /* { 329 syscallarg(const netbsd32_fhandlep_t) fhp; 330 syscallarg(netbsd32_statp_t) sb; 331 } */ *uap = v; 332 struct stat sb; 333 struct netbsd32_stat sb32; 334 int error; 335 fhandle_t *fh; 336 struct vnode *vp; 337 338 /* 339 * Must be super user 340 */ 341 if ((error = kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_FILEHANDLE, 342 0, NULL, NULL, NULL))) 343 return error; 344 345 if ((error = vfs_copyinfh_alloc(SCARG_P32(uap, fhp), 346 FHANDLE_SIZE_COMPAT, &fh)) != 0) 347 goto bad; 348 349 if ((error = vfs_fhtovp(fh, &vp)) != 0) 350 goto bad; 351 352 error = vn_stat(vp, &sb, l); 353 vput(vp); 354 if (error) 355 goto bad; 356 netbsd32_from___stat30(&sb, &sb32); 357 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb)); 358 bad: 359 vfs_copyinfh_free(fh); 360 return error; 361 } 362 363 /* 364 * Open a file given a file handle. 365 * 366 * Check permissions, allocate an open file structure, 367 * and call the device open routine if any. 368 */ 369 int 370 compat_30_netbsd32_fhopen(l, v, retval) 371 struct lwp *l; 372 void *v; 373 register_t *retval; 374 { 375 struct compat_30_netbsd32_fhopen_args /* { 376 syscallarg(const fhandle_t *) fhp; 377 syscallarg(int) flags; 378 } */ *uap = v; 379 struct compat_30_sys_fhopen_args ua; 380 381 NETBSD32TOP_UAP(fhp, struct compat_30_fhandle); 382 NETBSD32TO64_UAP(flags); 383 return (compat_30_sys_fhopen(l, &ua, retval)); 384 } 385
Indexes created Tue Sep 23 02:09:52 GMT 2025