netbsd32_compat_30.c revision 1.21
1 /* $NetBSD: netbsd32_compat_30.c,v 1.21 2007/04/30 08:32:15 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 1.21 2007/04/30 08:32:15 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 const char *path; 116 117 path = SCARG_P32(uap, path); 118 119 error = do_sys_stat(l, path, FOLLOW, &sb); 120 if (error) 121 return (error); 122 netbsd32_from___stat13(&sb, &sb32); 123 error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32)); 124 return (error); 125 } 126 127 int 128 compat_30_netbsd32___fstat13(l, v, retval) 129 struct lwp *l; 130 void *v; 131 register_t *retval; 132 { 133 struct compat_30_netbsd32___fstat13_args /* { 134 syscallarg(int) fd; 135 syscallarg(netbsd32_stat13p_t) sb; 136 } */ *uap = v; 137 int fd = SCARG(uap, fd); 138 struct proc *p = l->l_proc; 139 struct filedesc *fdp = p->p_fd; 140 struct file *fp; 141 struct netbsd32_stat13 sb32; 142 struct stat ub; 143 int error = 0; 144 145 if ((fp = fd_getfile(fdp, fd)) == NULL) 146 return (EBADF); 147 148 FILE_USE(fp); 149 error = (*fp->f_ops->fo_stat)(fp, &ub, l); 150 FILE_UNUSE(fp, l); 151 152 if (error == 0) { 153 netbsd32_from___stat13(&ub, &sb32); 154 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32)); 155 } 156 return (error); 157 } 158 159 int 160 compat_30_netbsd32___lstat13(l, v, retval) 161 struct lwp *l; 162 void *v; 163 register_t *retval; 164 { 165 struct compat_30_netbsd32___lstat13_args /* { 166 syscallarg(const netbsd32_charp) path; 167 syscallarg(netbsd32_stat13p_t) ub; 168 } */ *uap = v; 169 struct netbsd32_stat13 sb32; 170 struct stat sb; 171 int error; 172 const char *path; 173 174 path = SCARG_P32(uap, path); 175 176 error = do_sys_stat(l, path, NOFOLLOW, &sb); 177 if (error) 178 return (error); 179 netbsd32_from___stat13(&sb, &sb32); 180 error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32)); 181 return (error); 182 } 183 184 int 185 compat_30_netbsd32_fhstat(l, v, retval) 186 struct lwp *l; 187 void *v; 188 register_t *retval; 189 { 190 struct compat_30_netbsd32_fhstat_args /* { 191 syscallarg(const netbsd32_fhandlep_t) fhp; 192 syscallarg(netbsd32_stat13p_t) sb; 193 } */ *uap = v; 194 struct stat sb; 195 struct netbsd32_stat13 sb32; 196 int error; 197 struct compat_30_fhandle fh; 198 struct mount *mp; 199 struct vnode *vp; 200 201 /* 202 * Must be super user 203 */ 204 if ((error = kauth_authorize_system(l->l_cred, 205 KAUTH_SYSTEM_FILEHANDLE, 0, NULL, NULL, NULL))) 206 return (error); 207 208 if ((error = copyin(SCARG_P32(uap, fhp), &fh, sizeof(fh))) != 0) 209 return (error); 210 211 if ((mp = vfs_getvfs(&fh.fh_fsid)) == NULL) 212 return (ESTALE); 213 if (mp->mnt_op->vfs_fhtovp == NULL) 214 return EOPNOTSUPP; 215 if ((error = VFS_FHTOVP(mp, (struct fid*)&fh.fh_fid, &vp))) 216 return (error); 217 error = vn_stat(vp, &sb, l); 218 vput(vp); 219 if (error) 220 return (error); 221 netbsd32_from___stat13(&sb, &sb32); 222 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb)); 223 return (error); 224 } 225 226 int 227 compat_30_netbsd32_fhstatvfs1(l, v, retval) 228 struct lwp *l; 229 void *v; 230 register_t *retval; 231 { 232 struct compat_30_netbsd32_fhstatvfs1_args /* { 233 syscallarg(const netbsd32_fhandlep_t) fhp; 234 syscallarg(netbsd32_statvfsp_t) buf; 235 syscallarg(int) flags; 236 } */ *uap = v; 237 struct statvfs *sbuf; 238 struct netbsd32_statvfs *s32; 239 int error; 240 241 sbuf = STATVFSBUF_GET(); 242 error = do_fhstatvfs(l, SCARG_P32(uap, fhp), FHANDLE_SIZE_COMPAT, sbuf, 243 SCARG(uap, flags)); 244 245 if (error != 0) { 246 s32 = malloc(sizeof *s32, M_TEMP, M_WAITOK); 247 netbsd32_from_statvfs(sbuf, s32); 248 error = copyout(s32, SCARG_P32(uap, buf), sizeof *s32); 249 free(s32, M_TEMP); 250 } 251 STATVFSBUF_PUT(sbuf); 252 253 return (error); 254 } 255 256 int 257 compat_30_netbsd32_socket(l, v, retval) 258 struct lwp *l; 259 void *v; 260 register_t *retval; 261 { 262 struct compat_30_netbsd32_socket_args /* { 263 syscallarg(int) domain; 264 syscallarg(int) type; 265 syscallarg(int) protocol; 266 } */ *uap = v; 267 struct compat_30_sys_socket_args ua; 268 269 NETBSD32TO64_UAP(domain); 270 NETBSD32TO64_UAP(type); 271 NETBSD32TO64_UAP(protocol); 272 return (compat_30_sys_socket(l, &ua, retval)); 273 } 274 275 int 276 compat_30_netbsd32_getfh(l, v, retval) 277 struct lwp *l; 278 void *v; 279 register_t *retval; 280 { 281 struct compat_30_netbsd32_getfh_args /* { 282 syscallarg(const netbsd32_charp) fname; 283 syscallarg(netbsd32_compat_30_fhandlep_t) fhp; 284 } */ *uap = v; 285 struct compat_30_sys_getfh_args ua; 286 287 NETBSD32TOP_UAP(fname, const char); 288 NETBSD32TOP_UAP(fhp, struct compat_30_fhandle); 289 /* Lucky for us a fhandle_t doesn't change sizes */ 290 return (compat_30_sys_getfh(l, &ua, retval)); 291 } 292 293 294 int compat_30_netbsd32_sys___fhstat30(l, v, retval) 295 struct lwp *l; 296 void *v; 297 register_t *retval; 298 { 299 struct compat_30_netbsd32_sys___fhstat30_args /* { 300 syscallarg(const netbsd32_fhandlep_t) fhp; 301 syscallarg(netbsd32_statp_t) sb; 302 } */ *uap = v; 303 struct stat sb; 304 struct netbsd32_stat sb32; 305 int error; 306 307 error = do_fhstat(l, SCARG_P32(uap, fhp), FHANDLE_SIZE_COMPAT, &sb); 308 if (error) 309 return error; 310 311 netbsd32_from___stat30(&sb, &sb32); 312 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32)); 313 return error; 314 } 315 316 /* 317 * Open a file given a file handle. 318 * 319 * Check permissions, allocate an open file structure, 320 * and call the device open routine if any. 321 */ 322 int 323 compat_30_netbsd32_fhopen(l, v, retval) 324 struct lwp *l; 325 void *v; 326 register_t *retval; 327 { 328 struct compat_30_netbsd32_fhopen_args /* { 329 syscallarg(const fhandle_t *) fhp; 330 syscallarg(int) flags; 331 } */ *uap = v; 332 struct compat_30_sys_fhopen_args ua; 333 334 NETBSD32TOP_UAP(fhp, struct compat_30_fhandle); 335 NETBSD32TO64_UAP(flags); 336 return (compat_30_sys_fhopen(l, &ua, retval)); 337 } 338
Indexes created Fri Sep 26 08:10:20 GMT 2025