netbsd32_compat_30.c revision 1.20
1 /* $NetBSD: netbsd32_compat_30.c,v 1.20 2007/04/22 08:29:58 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 1.20 2007/04/22 08:29:58 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); 121 122 error = do_sys_stat(l, path, FOLLOW, &sb); 123 if (error) 124 return (error); 125 netbsd32_from___stat13(&sb, &sb32); 126 error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32)); 127 return (error); 128 } 129 130 int 131 compat_30_netbsd32___fstat13(l, v, retval) 132 struct lwp *l; 133 void *v; 134 register_t *retval; 135 { 136 struct compat_30_netbsd32___fstat13_args /* { 137 syscallarg(int) fd; 138 syscallarg(netbsd32_stat13p_t) sb; 139 } */ *uap = v; 140 int fd = SCARG(uap, fd); 141 struct proc *p = l->l_proc; 142 struct filedesc *fdp = p->p_fd; 143 struct file *fp; 144 struct netbsd32_stat13 sb32; 145 struct stat ub; 146 int error = 0; 147 148 if ((fp = fd_getfile(fdp, fd)) == NULL) 149 return (EBADF); 150 151 FILE_USE(fp); 152 error = (*fp->f_ops->fo_stat)(fp, &ub, l); 153 FILE_UNUSE(fp, l); 154 155 if (error == 0) { 156 netbsd32_from___stat13(&ub, &sb32); 157 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32)); 158 } 159 return (error); 160 } 161 162 int 163 compat_30_netbsd32___lstat13(l, v, retval) 164 struct lwp *l; 165 void *v; 166 register_t *retval; 167 { 168 struct compat_30_netbsd32___lstat13_args /* { 169 syscallarg(const netbsd32_charp) path; 170 syscallarg(netbsd32_stat13p_t) ub; 171 } */ *uap = v; 172 struct netbsd32_stat13 sb32; 173 struct stat sb; 174 int error; 175 void *sg; 176 const char *path; 177 struct proc *p = l->l_proc; 178 179 path = SCARG_P32(uap, path); 180 sg = stackgap_init(p, 0); 181 182 error = do_sys_stat(l, path, NOFOLLOW, &sb); 183 if (error) 184 return (error); 185 netbsd32_from___stat13(&sb, &sb32); 186 error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32)); 187 return (error); 188 } 189 190 int 191 compat_30_netbsd32_fhstat(l, v, retval) 192 struct lwp *l; 193 void *v; 194 register_t *retval; 195 { 196 struct compat_30_netbsd32_fhstat_args /* { 197 syscallarg(const netbsd32_fhandlep_t) fhp; 198 syscallarg(netbsd32_stat13p_t) sb; 199 } */ *uap = v; 200 struct stat sb; 201 struct netbsd32_stat13 sb32; 202 int error; 203 struct compat_30_fhandle fh; 204 struct mount *mp; 205 struct vnode *vp; 206 207 /* 208 * Must be super user 209 */ 210 if ((error = kauth_authorize_system(l->l_cred, 211 KAUTH_SYSTEM_FILEHANDLE, 0, NULL, NULL, NULL))) 212 return (error); 213 214 if ((error = copyin(SCARG_P32(uap, fhp), &fh, sizeof(fh))) != 0) 215 return (error); 216 217 if ((mp = vfs_getvfs(&fh.fh_fsid)) == NULL) 218 return (ESTALE); 219 if (mp->mnt_op->vfs_fhtovp == NULL) 220 return EOPNOTSUPP; 221 if ((error = VFS_FHTOVP(mp, (struct fid*)&fh.fh_fid, &vp))) 222 return (error); 223 error = vn_stat(vp, &sb, l); 224 vput(vp); 225 if (error) 226 return (error); 227 netbsd32_from___stat13(&sb, &sb32); 228 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb)); 229 return (error); 230 } 231 232 int 233 compat_30_netbsd32_fhstatvfs1(l, v, retval) 234 struct lwp *l; 235 void *v; 236 register_t *retval; 237 { 238 struct compat_30_netbsd32_fhstatvfs1_args /* { 239 syscallarg(const netbsd32_fhandlep_t) fhp; 240 syscallarg(netbsd32_statvfsp_t) buf; 241 syscallarg(int) flags; 242 } */ *uap = v; 243 struct statvfs *sbuf; 244 struct netbsd32_statvfs *s32; 245 fhandle_t *fh; 246 struct vnode *vp; 247 int error; 248 249 /* 250 * Must be super user 251 */ 252 if ((error = kauth_authorize_system(l->l_cred, 253 KAUTH_SYSTEM_FILEHANDLE, 0, NULL, NULL, NULL)) != 0) 254 return error; 255 256 if ((error = vfs_copyinfh_alloc(SCARG_P32(uap, fhp), 257 FHANDLE_SIZE_COMPAT, &fh)) != 0) 258 goto bad; 259 if ((error = vfs_fhtovp(fh, &vp)) != 0) 260 goto bad; 261 262 sbuf = (struct statvfs *)malloc(sizeof(struct statvfs), M_TEMP, 263 M_WAITOK); 264 error = dostatvfs(vp->v_mount, sbuf, l, SCARG(uap, flags), 1); 265 vput(vp); 266 if (error != 0) 267 goto out; 268 269 s32 = (struct netbsd32_statvfs *) 270 malloc(sizeof(struct netbsd32_statvfs), M_TEMP, M_WAITOK); 271 netbsd32_from_statvfs(sbuf, s32); 272 error = copyout(s32, SCARG_P32(uap, buf), 273 sizeof(struct netbsd32_statvfs)); 274 free(s32, M_TEMP); 275 276 out: 277 free(sbuf, M_TEMP); 278 bad: 279 vfs_copyinfh_free(fh); 280 return (error); 281 } 282 283 int 284 compat_30_netbsd32_socket(l, v, retval) 285 struct lwp *l; 286 void *v; 287 register_t *retval; 288 { 289 struct compat_30_netbsd32_socket_args /* { 290 syscallarg(int) domain; 291 syscallarg(int) type; 292 syscallarg(int) protocol; 293 } */ *uap = v; 294 struct compat_30_sys_socket_args ua; 295 296 NETBSD32TO64_UAP(domain); 297 NETBSD32TO64_UAP(type); 298 NETBSD32TO64_UAP(protocol); 299 return (compat_30_sys_socket(l, &ua, retval)); 300 } 301 302 int 303 compat_30_netbsd32_getfh(l, v, retval) 304 struct lwp *l; 305 void *v; 306 register_t *retval; 307 { 308 struct compat_30_netbsd32_getfh_args /* { 309 syscallarg(const netbsd32_charp) fname; 310 syscallarg(netbsd32_compat_30_fhandlep_t) fhp; 311 } */ *uap = v; 312 struct compat_30_sys_getfh_args ua; 313 314 NETBSD32TOP_UAP(fname, const char); 315 NETBSD32TOP_UAP(fhp, struct compat_30_fhandle); 316 /* Lucky for us a fhandle_t doesn't change sizes */ 317 return (compat_30_sys_getfh(l, &ua, retval)); 318 } 319 320 321 int compat_30_netbsd32_sys___fhstat30(l, v, retval) 322 struct lwp *l; 323 void *v; 324 register_t *retval; 325 { 326 struct compat_30_netbsd32_sys___fhstat30_args /* { 327 syscallarg(const netbsd32_fhandlep_t) fhp; 328 syscallarg(netbsd32_statp_t) sb; 329 } */ *uap = v; 330 struct stat sb; 331 struct netbsd32_stat sb32; 332 int error; 333 fhandle_t *fh; 334 struct vnode *vp; 335 336 /* 337 * Must be super user 338 */ 339 if ((error = kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_FILEHANDLE, 340 0, NULL, NULL, NULL))) 341 return error; 342 343 if ((error = vfs_copyinfh_alloc(SCARG_P32(uap, fhp), 344 FHANDLE_SIZE_COMPAT, &fh)) != 0) 345 goto bad; 346 347 if ((error = vfs_fhtovp(fh, &vp)) != 0) 348 goto bad; 349 350 error = vn_stat(vp, &sb, l); 351 vput(vp); 352 if (error) 353 goto bad; 354 netbsd32_from___stat30(&sb, &sb32); 355 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb)); 356 bad: 357 vfs_copyinfh_free(fh); 358 return error; 359 } 360 361 /* 362 * Open a file given a file handle. 363 * 364 * Check permissions, allocate an open file structure, 365 * and call the device open routine if any. 366 */ 367 int 368 compat_30_netbsd32_fhopen(l, v, retval) 369 struct lwp *l; 370 void *v; 371 register_t *retval; 372 { 373 struct compat_30_netbsd32_fhopen_args /* { 374 syscallarg(const fhandle_t *) fhp; 375 syscallarg(int) flags; 376 } */ *uap = v; 377 struct compat_30_sys_fhopen_args ua; 378 379 NETBSD32TOP_UAP(fhp, struct compat_30_fhandle); 380 NETBSD32TO64_UAP(flags); 381 return (compat_30_sys_fhopen(l, &ua, retval)); 382 } 383
Indexes created Thu Oct 02 14:10:14 GMT 2025