netbsd32_compat_30.c revision 1.18
1 /* $NetBSD: netbsd32_compat_30.c,v 1.18 2007/03/10 21:40:25 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 1.18 2007/03/10 21:40:25 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, NETBSD32PTR64(SCARG(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 = (char *)NETBSD32PTR64(SCARG(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, (void *)NETBSD32PTR64(SCARG(uap, ub)), 128 sizeof(sb32)); 129 return (error); 130 } 131 132 int 133 compat_30_netbsd32___fstat13(l, v, retval) 134 struct lwp *l; 135 void *v; 136 register_t *retval; 137 { 138 struct compat_30_netbsd32___fstat13_args /* { 139 syscallarg(int) fd; 140 syscallarg(netbsd32_stat13p_t) sb; 141 } */ *uap = v; 142 int fd = SCARG(uap, fd); 143 struct proc *p = l->l_proc; 144 struct filedesc *fdp = p->p_fd; 145 struct file *fp; 146 struct netbsd32_stat13 sb32; 147 struct stat ub; 148 int error = 0; 149 150 if ((fp = fd_getfile(fdp, fd)) == NULL) 151 return (EBADF); 152 153 FILE_USE(fp); 154 error = (*fp->f_ops->fo_stat)(fp, &ub, l); 155 FILE_UNUSE(fp, l); 156 157 if (error == 0) { 158 netbsd32_from___stat13(&ub, &sb32); 159 error = copyout(&sb32, (void *)NETBSD32PTR64(SCARG(uap, sb)), 160 sizeof(sb32)); 161 } 162 return (error); 163 } 164 165 int 166 compat_30_netbsd32___lstat13(l, v, retval) 167 struct lwp *l; 168 void *v; 169 register_t *retval; 170 { 171 struct compat_30_netbsd32___lstat13_args /* { 172 syscallarg(const netbsd32_charp) path; 173 syscallarg(netbsd32_stat13p_t) ub; 174 } */ *uap = v; 175 struct netbsd32_stat13 sb32; 176 struct stat sb; 177 int error; 178 void *sg; 179 const char *path; 180 struct proc *p = l->l_proc; 181 182 path = (char *)NETBSD32PTR64(SCARG(uap, path)); 183 sg = stackgap_init(p, 0); 184 CHECK_ALT_EXIST(l, &sg, path); 185 186 error = do_sys_stat(l, path, NOFOLLOW, &sb); 187 if (error) 188 return (error); 189 netbsd32_from___stat13(&sb, &sb32); 190 error = copyout(&sb32, (void *)NETBSD32PTR64(SCARG(uap, ub)), 191 sizeof(sb32)); 192 return (error); 193 } 194 195 int 196 compat_30_netbsd32_fhstat(l, v, retval) 197 struct lwp *l; 198 void *v; 199 register_t *retval; 200 { 201 struct compat_30_netbsd32_fhstat_args /* { 202 syscallarg(const netbsd32_fhandlep_t) fhp; 203 syscallarg(netbsd32_stat13p_t) sb); 204 } */ *uap = v; 205 struct stat sb; 206 struct netbsd32_stat13 sb32; 207 int error; 208 struct compat_30_fhandle fh; 209 struct mount *mp; 210 struct vnode *vp; 211 212 /* 213 * Must be super user 214 */ 215 if ((error = kauth_authorize_system(l->l_cred, 216 KAUTH_SYSTEM_FILEHANDLE, 0, NULL, NULL, NULL))) 217 return (error); 218 219 if ((error = copyin(NETBSD32PTR64(SCARG(uap, fhp)), &fh, 220 sizeof(fh))) != 0) 221 return (error); 222 223 if ((mp = vfs_getvfs(&fh.fh_fsid)) == NULL) 224 return (ESTALE); 225 if (mp->mnt_op->vfs_fhtovp == NULL) 226 return EOPNOTSUPP; 227 if ((error = VFS_FHTOVP(mp, (struct fid*)&fh.fh_fid, &vp))) 228 return (error); 229 error = vn_stat(vp, &sb, l); 230 vput(vp); 231 if (error) 232 return (error); 233 netbsd32_from___stat13(&sb, &sb32); 234 error = copyout(&sb32, NETBSD32PTR64(SCARG(uap, sb)), sizeof(sb)); 235 return (error); 236 } 237 238 int 239 compat_30_netbsd32_fhstatvfs1(l, v, retval) 240 struct lwp *l; 241 void *v; 242 register_t *retval; 243 { 244 struct compat_30_netbsd32_fhstatvfs1_args /* { 245 syscallarg(const netbsd32_fhandlep_t) fhp; 246 syscallarg(netbsd32_statvfsp_t) buf; 247 syscallarg(int) flags; 248 } */ *uap = v; 249 struct statvfs *sbuf; 250 struct netbsd32_statvfs *s32; 251 fhandle_t *fh; 252 struct vnode *vp; 253 int error; 254 255 /* 256 * Must be super user 257 */ 258 if ((error = kauth_authorize_system(l->l_cred, 259 KAUTH_SYSTEM_FILEHANDLE, 0, NULL, NULL, NULL)) != 0) 260 return error; 261 262 if ((error = vfs_copyinfh_alloc(NETBSD32PTR64(SCARG(uap, fhp)), 263 FHANDLE_SIZE_COMPAT, &fh)) != 0) 264 goto bad; 265 if ((error = vfs_fhtovp(fh, &vp)) != 0) 266 goto bad; 267 268 sbuf = (struct statvfs *)malloc(sizeof(struct statvfs), M_TEMP, 269 M_WAITOK); 270 error = dostatvfs(vp->v_mount, sbuf, l, SCARG(uap, flags), 1); 271 vput(vp); 272 if (error != 0) 273 goto out; 274 275 s32 = (struct netbsd32_statvfs *) 276 malloc(sizeof(struct netbsd32_statvfs), M_TEMP, M_WAITOK); 277 netbsd32_from_statvfs(sbuf, s32); 278 error = copyout(s32, (void *)NETBSD32PTR64(SCARG(uap, buf)), 279 sizeof(struct netbsd32_statvfs)); 280 free(s32, M_TEMP); 281 282 out: 283 free(sbuf, M_TEMP); 284 bad: 285 vfs_copyinfh_free(fh); 286 return (error); 287 } 288 289 int 290 compat_30_netbsd32_socket(l, v, retval) 291 struct lwp *l; 292 void *v; 293 register_t *retval; 294 { 295 struct compat_30_netbsd32_socket_args /* { 296 syscallarg(int) domain; 297 syscallarg(int) type; 298 syscallarg(int) protocol; 299 } */ *uap = v; 300 struct compat_30_sys_socket_args ua; 301 302 NETBSD32TO64_UAP(domain); 303 NETBSD32TO64_UAP(type); 304 NETBSD32TO64_UAP(protocol); 305 return (compat_30_sys_socket(l, &ua, retval)); 306 } 307 308 int 309 compat_30_netbsd32_getfh(l, v, retval) 310 struct lwp *l; 311 void *v; 312 register_t *retval; 313 { 314 struct compat_30_netbsd32_getfh_args /* { 315 syscallarg(const netbsd32_charp) fname; 316 syscallarg(netbsd32_compat_30_fhandlep_t) fhp; 317 } */ *uap = v; 318 struct compat_30_sys_getfh_args ua; 319 320 NETBSD32TOP_UAP(fname, const char); 321 NETBSD32TOP_UAP(fhp, struct compat_30_fhandle); 322 /* Lucky for us a fhandle_t doesn't change sizes */ 323 return (compat_30_sys_getfh(l, &ua, retval)); 324 } 325 326 327 int compat_30_netbsd32_sys___fhstat30(l, v, retval) 328 struct lwp *l; 329 void *v; 330 register_t *retval; 331 { 332 struct compat_30_netbsd32_sys___fhstat30_args /* { 333 syscallarg(const netbsd32_fhandlep_t) fhp; 334 syscallarg(netbsd32_statp_t) sb; 335 } */ *uap = v; 336 struct stat sb; 337 struct netbsd32_stat sb32; 338 int error; 339 fhandle_t *fh; 340 struct vnode *vp; 341 342 /* 343 * Must be super user 344 */ 345 if ((error = kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_FILEHANDLE, 346 0, NULL, NULL, NULL))) 347 return error; 348 349 if ((error = vfs_copyinfh_alloc(NETBSD32PTR64(SCARG(uap, fhp)), 350 FHANDLE_SIZE_COMPAT, &fh)) != 0) 351 goto bad; 352 353 if ((error = vfs_fhtovp(fh, &vp)) != 0) 354 goto bad; 355 356 error = vn_stat(vp, &sb, l); 357 vput(vp); 358 if (error) 359 goto bad; 360 netbsd32_from___stat30(&sb, &sb32); 361 error = copyout(&sb32, NETBSD32PTR64(SCARG(uap, sb)), sizeof(sb)); 362 bad: 363 vfs_copyinfh_free(fh); 364 return error; 365 } 366 367 /* 368 * Open a file given a file handle. 369 * 370 * Check permissions, allocate an open file structure, 371 * and call the device open routine if any. 372 */ 373 int 374 compat_30_netbsd32_fhopen(l, v, retval) 375 struct lwp *l; 376 void *v; 377 register_t *retval; 378 { 379 struct compat_30_netbsd32_fhopen_args /* { 380 syscallarg(const fhandle_t *) fhp; 381 syscallarg(int) flags; 382 } */ *uap = v; 383 struct compat_30_sys_fhopen_args ua; 384 385 NETBSD32TOP_UAP(fhp, struct compat_30_fhandle); 386 NETBSD32TO64_UAP(flags); 387 return (compat_30_sys_fhopen(l, &ua, retval)); 388 } 389
Indexes created Tue Sep 23 02:09:52 GMT 2025