vfs_syscalls_50.c revision 1.1.2.1
1 /* $NetBSD: vfs_syscalls_50.c,v 1.1.2.1 2008/03/29 20:50:33 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2008 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 #include <sys/cdefs.h> 39 __KERNEL_RCSID(0, "$NetBSD: vfs_syscalls_50.c,v 1.1.2.1 2008/03/29 20:50:33 christos Exp $"); 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/namei.h> 44 #include <sys/filedesc.h> 45 #include <sys/kernel.h> 46 #include <sys/file.h> 47 #include <sys/stat.h> 48 #include <sys/socketvar.h> 49 #include <sys/vnode.h> 50 #include <sys/mount.h> 51 #include <sys/proc.h> 52 #include <sys/uio.h> 53 #include <sys/dirent.h> 54 #include <sys/malloc.h> 55 #include <sys/kauth.h> 56 #include <sys/time.h> 57 #include <sys/vfs_syscalls.h> 58 #ifndef LFS 59 #define LFS 60 #endif 61 #include <sys/syscallargs.h> 62 63 #include <ufs/lfs/lfs_extern.h> 64 65 #include <compat/common/compat_util.h> 66 #include <compat/sys/time.h> 67 #include <compat/sys/stat.h> 68 #include <compat/sys/dirent.h> 69 #include <compat/sys/mount.h> 70 71 static void cvtstat(struct stat30 *, const struct stat *); 72 73 /* 74 * Convert from a new to an old stat structure. 75 */ 76 static void 77 cvtstat(struct stat30 *ost, const struct stat *st) 78 { 79 80 ost->st_dev = st->st_dev; 81 ost->st_ino = st->st_ino; 82 ost->st_mode = st->st_mode; 83 ost->st_nlink = st->st_nlink; 84 ost->st_uid = st->st_uid; 85 ost->st_gid = st->st_gid; 86 ost->st_rdev = st->st_rdev; 87 ost->st_atimespec.tv_sec = (long)st->st_atimespec.tv_sec; 88 ost->st_atimespec.tv_nsec = st->st_atimespec.tv_nsec; 89 ost->st_mtimespec.tv_sec = (long)st->st_mtimespec.tv_sec; 90 ost->st_mtimespec.tv_nsec = st->st_mtimespec.tv_nsec; 91 ost->st_ctimespec.tv_sec = (long)st->st_ctimespec.tv_sec; 92 ost->st_ctimespec.tv_nsec = st->st_ctimespec.tv_nsec; 93 ost->st_birthtimespec.tv_sec = (long)st->st_birthtimespec.tv_sec; 94 ost->st_birthtimespec.tv_nsec = st->st_birthtimespec.tv_nsec; 95 ost->st_size = st->st_size; 96 ost->st_blocks = st->st_blocks; 97 ost->st_blksize = st->st_blksize; 98 ost->st_flags = st->st_flags; 99 ost->st_gen = st->st_gen; 100 } 101 102 /* 103 * Get file status; this version follows links. 104 */ 105 /* ARGSUSED */ 106 int 107 compat_50_sys___stat30(struct lwp *l, const struct compat_50_sys___stat30_args *uap, register_t *retval) 108 { 109 /* { 110 syscallarg(const char *) path; 111 syscallarg(struct stat30 *) ub; 112 } */ 113 struct stat sb; 114 struct stat30 osb; 115 int error; 116 117 error = do_sys_stat(SCARG(uap, path), FOLLOW, &sb); 118 if (error) 119 return error; 120 cvtstat(&osb, &sb); 121 error = copyout(&osb, SCARG(uap, ub), sizeof (osb)); 122 return error; 123 } 124 125 126 /* 127 * Get file status; this version does not follow links. 128 */ 129 /* ARGSUSED */ 130 int 131 compat_50_sys___lstat30(struct lwp *l, const struct compat_50_sys___lstat30_args *uap, register_t *retval) 132 { 133 /* { 134 syscallarg(const char *) path; 135 syscallarg(struct stat30 *) ub; 136 } */ 137 struct stat sb; 138 struct stat30 osb; 139 int error; 140 141 error = do_sys_stat(SCARG(uap, path), NOFOLLOW, &sb); 142 if (error) 143 return error; 144 cvtstat(&osb, &sb); 145 error = copyout(&osb, SCARG(uap, ub), sizeof (osb)); 146 return error; 147 } 148 149 /* 150 * Return status information about a file descriptor. 151 */ 152 /* ARGSUSED */ 153 int 154 compat_50_sys___fstat30(struct lwp *l, const struct compat_50_sys___fstat30_args *uap, register_t *retval) 155 { 156 /* { 157 syscallarg(int) fd; 158 syscallarg(struct stat30 *) sb; 159 } */ 160 int fd = SCARG(uap, fd); 161 struct file *fp; 162 struct stat sb; 163 struct stat30 osb; 164 int error; 165 166 if ((fp = fd_getfile(fd)) == NULL) 167 return EBADF; 168 169 error = (*fp->f_ops->fo_stat)(fp, &sb); 170 fd_putfile(fd); 171 172 if (error) 173 return error; 174 cvtstat(&osb, &sb); 175 error = copyout(&osb, SCARG(uap, sb), sizeof (osb)); 176 return error; 177 } 178 179 static int 180 compat_50_do_sys_utimes(struct lwp *l, struct vnode *vp, const char *path, 181 int flag, const struct timeval50 *tptr) 182 { 183 struct timeval tv[2]; 184 struct timeval50 tv50[2]; 185 int error = copyin(tptr, tv50, sizeof(tv50)); 186 if (error) 187 return error; 188 timeval50_to_timeval(&tv50[0], &tv[0]); 189 timeval50_to_timeval(&tv50[1], &tv[1]); 190 return do_sys_utimes(l, vp, path, flag, tv, UIO_SYSSPACE); 191 } 192 193 /* 194 * Set the access and modification times given a path name; this 195 * version follows links. 196 */ 197 /* ARGSUSED */ 198 int 199 compat_50_sys_utimes(struct lwp *l, const struct compat_50_sys_utimes_args *uap, 200 register_t *retval) 201 { 202 /* { 203 syscallarg(const char *) path; 204 syscallarg(const struct timeval50 *) tptr; 205 } */ 206 207 return compat_50_do_sys_utimes(l, NULL, SCARG(uap, path), FOLLOW, 208 SCARG(uap, tptr)); 209 } 210 211 /* 212 * Set the access and modification times given a file descriptor. 213 */ 214 /* ARGSUSED */ 215 int 216 compat_50_sys_futimes(struct lwp *l, 217 const struct compat_50_sys_futimes_args *uap, register_t *retval) 218 { 219 /* { 220 syscallarg(int) fd; 221 syscallarg(const struct timeval50 *) tptr; 222 } */ 223 int error; 224 struct file *fp; 225 226 return (error); 227 /* fd_getvnode() will use the descriptor for us */ 228 if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0) 229 return (error); 230 error = compat_50_do_sys_utimes(l, fp->f_data, NULL, 0, 231 SCARG(uap, tptr)); 232 fd_putfile(SCARG(uap, fd)); 233 return (error); 234 } 235 236 /* 237 * Set the access and modification times given a path name; this 238 * version does not follow links. 239 */ 240 int 241 compat_50_sys_lutimes(struct lwp *l, 242 const struct compat_50_sys_lutimes_args *uap, register_t *retval) 243 { 244 /* { 245 syscallarg(const char *) path; 246 syscallarg(const struct timeval50 *) tptr; 247 } */ 248 249 return compat_50_do_sys_utimes(l, NULL, SCARG(uap, path), NOFOLLOW, 250 SCARG(uap, tptr)); 251 } 252 253 int 254 compat_50_sys_lfs_segwait(struct lwp *l, 255 const struct compat_50_sys_lfs_segwait_args *uap, register_t *retval) 256 { 257 /* { 258 syscallarg(fsid_t *) fsidp; 259 syscallarg(struct timeval50 *) tv; 260 } */ 261 struct timeval atv; 262 struct timeval50 atv50; 263 fsid_t fsid; 264 int error; 265 266 /* XXX need we be su to segwait? */ 267 if ((error = kauth_authorize_generic(l->l_cred, KAUTH_GENERIC_ISSUSER, 268 NULL)) != 0) 269 return (error); 270 if ((error = copyin(SCARG(uap, fsidp), &fsid, sizeof(fsid_t))) != 0) 271 return (error); 272 273 if (SCARG(uap, tv)) { 274 error = copyin(SCARG(uap, tv), &atv50, sizeof(atv50)); 275 if (error) 276 return (error); 277 timeval50_to_timeval(&atv50, &atv); 278 if (itimerfix(&atv)) 279 return (EINVAL); 280 } else /* NULL or invalid */ 281 atv.tv_sec = atv.tv_usec = 0; 282 return lfs_segwait(&fsid, &atv); 283 } 284 285 int 286 compat_50_sys_mknod(struct lwp *l, 287 const struct compat_50_sys_mknod_args *uap, register_t *retval) 288 { 289 /* { 290 syscallarg(const char *) path; 291 syscallarg(mode_t) mode; 292 syscallarg(uint32_t) dev; 293 } */ 294 return do_sys_mknod(l, SCARG(uap, path), SCARG(uap, mode), 295 SCARG(uap, dev), retval); 296 } 297
Indexes created Sun Oct 19 16:10:00 GMT 2025