vfs_xattr.c revision 1.29 1 1.29 drochner /* $NetBSD: vfs_xattr.c,v 1.29 2011/11/09 18:29:28 drochner Exp $ */
2 1.2 thorpej
3 1.2 thorpej /*-
4 1.17 ad * Copyright (c) 2005, 2008 The NetBSD Foundation, Inc.
5 1.2 thorpej * All rights reserved.
6 1.2 thorpej *
7 1.2 thorpej * This code is derived from software contributed to The NetBSD Foundation
8 1.2 thorpej * by Jason R. Thorpe.
9 1.2 thorpej *
10 1.2 thorpej * Redistribution and use in source and binary forms, with or without
11 1.2 thorpej * modification, are permitted provided that the following conditions
12 1.2 thorpej * are met:
13 1.2 thorpej * 1. Redistributions of source code must retain the above copyright
14 1.2 thorpej * notice, this list of conditions and the following disclaimer.
15 1.2 thorpej * 2. Redistributions in binary form must reproduce the above copyright
16 1.2 thorpej * notice, this list of conditions and the following disclaimer in the
17 1.2 thorpej * documentation and/or other materials provided with the distribution.
18 1.2 thorpej *
19 1.2 thorpej * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 1.2 thorpej * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 1.2 thorpej * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 1.2 thorpej * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 1.2 thorpej * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 1.2 thorpej * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 1.2 thorpej * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 1.2 thorpej * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 1.2 thorpej * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 1.2 thorpej * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 1.2 thorpej * POSSIBILITY OF SUCH DAMAGE.
30 1.2 thorpej */
31 1.1 thorpej
32 1.1 thorpej /*
33 1.1 thorpej * Copyright (c) 1989, 1993
34 1.1 thorpej * The Regents of the University of California. All rights reserved.
35 1.1 thorpej * (c) UNIX System Laboratories, Inc.
36 1.1 thorpej * All or some portions of this file are derived from material licensed
37 1.1 thorpej * to the University of California by American Telephone and Telegraph
38 1.1 thorpej * Co. or Unix System Laboratories, Inc. and are reproduced herein with
39 1.1 thorpej * the permission of UNIX System Laboratories, Inc.
40 1.1 thorpej *
41 1.1 thorpej * Redistribution and use in source and binary forms, with or without
42 1.1 thorpej * modification, are permitted provided that the following conditions
43 1.1 thorpej * are met:
44 1.1 thorpej * 1. Redistributions of source code must retain the above copyright
45 1.1 thorpej * notice, this list of conditions and the following disclaimer.
46 1.1 thorpej * 2. Redistributions in binary form must reproduce the above copyright
47 1.1 thorpej * notice, this list of conditions and the following disclaimer in the
48 1.1 thorpej * documentation and/or other materials provided with the distribution.
49 1.1 thorpej * 3. Neither the name of the University nor the names of its contributors
50 1.1 thorpej * may be used to endorse or promote products derived from this software
51 1.1 thorpej * without specific prior written permission.
52 1.1 thorpej *
53 1.1 thorpej * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
54 1.1 thorpej * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
55 1.1 thorpej * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
56 1.1 thorpej * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
57 1.1 thorpej * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
58 1.1 thorpej * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
59 1.1 thorpej * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
60 1.1 thorpej * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
61 1.1 thorpej * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
62 1.1 thorpej * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
63 1.1 thorpej * SUCH DAMAGE.
64 1.1 thorpej */
65 1.1 thorpej
66 1.1 thorpej /*
67 1.1 thorpej * VFS extended attribute support.
68 1.1 thorpej */
69 1.1 thorpej
70 1.1 thorpej #include <sys/cdefs.h>
71 1.29 drochner __KERNEL_RCSID(0, "$NetBSD: vfs_xattr.c,v 1.29 2011/11/09 18:29:28 drochner Exp $");
72 1.1 thorpej
73 1.1 thorpej #include <sys/param.h>
74 1.1 thorpej #include <sys/systm.h>
75 1.1 thorpej #include <sys/namei.h>
76 1.1 thorpej #include <sys/filedesc.h>
77 1.1 thorpej #include <sys/kernel.h>
78 1.1 thorpej #include <sys/file.h>
79 1.1 thorpej #include <sys/vnode.h>
80 1.1 thorpej #include <sys/mount.h>
81 1.1 thorpej #include <sys/proc.h>
82 1.1 thorpej #include <sys/uio.h>
83 1.1 thorpej #include <sys/extattr.h>
84 1.2 thorpej #include <sys/xattr.h>
85 1.1 thorpej #include <sys/sysctl.h>
86 1.1 thorpej #include <sys/syscallargs.h>
87 1.6 elad #include <sys/kauth.h>
88 1.28 manu #include <sys/ktrace.h>
89 1.1 thorpej
90 1.1 thorpej /*
91 1.3 thorpej * Credential check based on process requesting service, and per-attribute
92 1.3 thorpej * permissions.
93 1.3 thorpej *
94 1.3 thorpej * NOTE: Vnode must be locked.
95 1.3 thorpej */
96 1.3 thorpej int
97 1.3 thorpej extattr_check_cred(struct vnode *vp, int attrnamespace,
98 1.6 elad kauth_cred_t cred, struct lwp *l, int access)
99 1.3 thorpej {
100 1.3 thorpej
101 1.3 thorpej if (cred == NOCRED)
102 1.3 thorpej return (0);
103 1.3 thorpej
104 1.3 thorpej switch (attrnamespace) {
105 1.3 thorpej case EXTATTR_NAMESPACE_SYSTEM:
106 1.3 thorpej /*
107 1.3 thorpej * Do we really want to allow this, or just require that
108 1.3 thorpej * these requests come from kernel code (NOCRED case above)?
109 1.3 thorpej */
110 1.6 elad return (kauth_authorize_generic(cred, KAUTH_GENERIC_ISSUSER,
111 1.10 elad NULL));
112 1.3 thorpej
113 1.3 thorpej case EXTATTR_NAMESPACE_USER:
114 1.13 pooka return (VOP_ACCESS(vp, access, cred));
115 1.3 thorpej
116 1.3 thorpej default:
117 1.3 thorpej return (EPERM);
118 1.3 thorpej }
119 1.3 thorpej }
120 1.3 thorpej
121 1.3 thorpej /*
122 1.3 thorpej * Default vfs_extattrctl routine for file systems that do not support
123 1.3 thorpej * it.
124 1.3 thorpej */
125 1.3 thorpej /*ARGSUSED*/
126 1.3 thorpej int
127 1.9 yamt vfs_stdextattrctl(struct mount *mp, int cmt, struct vnode *vp,
128 1.13 pooka int attrnamespace, const char *attrname)
129 1.3 thorpej {
130 1.3 thorpej
131 1.3 thorpej if (vp != NULL)
132 1.22 hannken VOP_UNLOCK(vp);
133 1.3 thorpej return (EOPNOTSUPP);
134 1.3 thorpej }
135 1.3 thorpej
136 1.3 thorpej /*
137 1.2 thorpej * Push extended attribute configuration information into the file
138 1.2 thorpej * system.
139 1.1 thorpej *
140 1.1 thorpej * NOTE: Not all file systems that support extended attributes will
141 1.1 thorpej * require the use of this system call.
142 1.1 thorpej */
143 1.1 thorpej int
144 1.15 dsl sys_extattrctl(struct lwp *l, const struct sys_extattrctl_args *uap, register_t *retval)
145 1.1 thorpej {
146 1.15 dsl /* {
147 1.1 thorpej syscallarg(const char *) path;
148 1.1 thorpej syscallarg(int) cmd;
149 1.1 thorpej syscallarg(const char *) filename;
150 1.1 thorpej syscallarg(int) attrnamespace;
151 1.1 thorpej syscallarg(const char *) attrname;
152 1.15 dsl } */
153 1.20 dholland struct vnode *path_vp, *file_vp;
154 1.23 dholland struct pathbuf *file_pb;
155 1.20 dholland struct nameidata file_nd;
156 1.1 thorpej char attrname[EXTATTR_MAXNAMELEN];
157 1.1 thorpej int error;
158 1.1 thorpej
159 1.1 thorpej if (SCARG(uap, attrname) != NULL) {
160 1.1 thorpej error = copyinstr(SCARG(uap, attrname), attrname,
161 1.1 thorpej sizeof(attrname), NULL);
162 1.1 thorpej if (error)
163 1.1 thorpej return (error);
164 1.1 thorpej }
165 1.1 thorpej
166 1.21 pooka error = namei_simple_user(SCARG(uap, path),
167 1.21 pooka NSM_FOLLOW_NOEMULROOT, &path_vp);
168 1.21 pooka if (error) {
169 1.21 pooka return (error);
170 1.21 pooka }
171 1.21 pooka
172 1.20 dholland file_vp = NULL;
173 1.1 thorpej if (SCARG(uap, filename) != NULL) {
174 1.23 dholland error = pathbuf_copyin(SCARG(uap, filename), &file_pb);
175 1.23 dholland if (error) {
176 1.23 dholland vrele(path_vp);
177 1.23 dholland return (error);
178 1.23 dholland }
179 1.23 dholland NDINIT(&file_nd, LOOKUP, FOLLOW | LOCKLEAF, file_pb);
180 1.20 dholland error = namei(&file_nd);
181 1.21 pooka if (error) {
182 1.23 dholland pathbuf_destroy(file_pb);
183 1.21 pooka vrele(path_vp);
184 1.1 thorpej return (error);
185 1.21 pooka }
186 1.20 dholland file_vp = file_nd.ni_vp;
187 1.23 dholland pathbuf_destroy(file_pb);
188 1.1 thorpej }
189 1.1 thorpej
190 1.20 dholland error = VFS_EXTATTRCTL(path_vp->v_mount, SCARG(uap, cmd), file_vp,
191 1.1 thorpej SCARG(uap, attrnamespace),
192 1.13 pooka SCARG(uap, attrname) != NULL ? attrname : NULL);
193 1.1 thorpej
194 1.20 dholland if (file_vp != NULL)
195 1.20 dholland vrele(file_vp);
196 1.20 dholland vrele(path_vp);
197 1.1 thorpej
198 1.1 thorpej return (error);
199 1.1 thorpej }
200 1.1 thorpej
201 1.1 thorpej /*****************************************************************************
202 1.1 thorpej * Internal routines to manipulate file system extended attributes:
203 1.1 thorpej * - set
204 1.1 thorpej * - get
205 1.1 thorpej * - delete
206 1.1 thorpej * - list
207 1.1 thorpej *****************************************************************************/
208 1.1 thorpej
209 1.1 thorpej /*
210 1.1 thorpej * extattr_set_vp:
211 1.1 thorpej *
212 1.1 thorpej * Set a named extended attribute on a file or directory.
213 1.1 thorpej */
214 1.1 thorpej static int
215 1.1 thorpej extattr_set_vp(struct vnode *vp, int attrnamespace, const char *attrname,
216 1.24 manu const void *data, size_t nbytes, struct lwp *l, register_t *retval,
217 1.24 manu int flag)
218 1.1 thorpej {
219 1.1 thorpej struct uio auio;
220 1.1 thorpej struct iovec aiov;
221 1.1 thorpej ssize_t cnt;
222 1.1 thorpej int error;
223 1.1 thorpej
224 1.1 thorpej vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
225 1.1 thorpej
226 1.24 manu if (flag) {
227 1.24 manu size_t attrlen;
228 1.24 manu
229 1.24 manu error = VOP_GETEXTATTR(vp, attrnamespace, attrname, NULL,
230 1.24 manu &attrlen, l->l_cred);
231 1.24 manu
232 1.24 manu switch (error) {
233 1.24 manu case ENOATTR:
234 1.24 manu if (flag & XATTR_REPLACE)
235 1.24 manu goto done;
236 1.24 manu break;
237 1.24 manu case 0:
238 1.24 manu if (flag & XATTR_CREATE) {
239 1.24 manu error = EEXIST;
240 1.24 manu goto done;
241 1.24 manu }
242 1.24 manu break;
243 1.24 manu default:
244 1.24 manu goto done;
245 1.24 manu break;
246 1.24 manu }
247 1.24 manu }
248 1.24 manu
249 1.1 thorpej aiov.iov_base = __UNCONST(data); /* XXXUNCONST kills const */
250 1.1 thorpej aiov.iov_len = nbytes;
251 1.1 thorpej auio.uio_iov = &aiov;
252 1.1 thorpej auio.uio_iovcnt = 1;
253 1.1 thorpej auio.uio_offset = 0;
254 1.1 thorpej if (nbytes > INT_MAX) {
255 1.1 thorpej error = EINVAL;
256 1.1 thorpej goto done;
257 1.1 thorpej }
258 1.1 thorpej auio.uio_resid = nbytes;
259 1.1 thorpej auio.uio_rw = UIO_WRITE;
260 1.5 yamt KASSERT(l == curlwp);
261 1.5 yamt auio.uio_vmspace = l->l_proc->p_vmspace;
262 1.1 thorpej cnt = nbytes;
263 1.1 thorpej
264 1.28 manu ktrkuser("xattr-name", (void *)__UNCONST(attrname), strlen(attrname));
265 1.28 manu ktrkuser("xattr-val", __UNCONST(data), nbytes);
266 1.28 manu
267 1.13 pooka error = VOP_SETEXTATTR(vp, attrnamespace, attrname, &auio, l->l_cred);
268 1.1 thorpej cnt -= auio.uio_resid;
269 1.1 thorpej retval[0] = cnt;
270 1.1 thorpej
271 1.1 thorpej done:
272 1.22 hannken VOP_UNLOCK(vp);
273 1.1 thorpej return (error);
274 1.1 thorpej }
275 1.1 thorpej
276 1.1 thorpej /*
277 1.1 thorpej * extattr_get_vp:
278 1.1 thorpej *
279 1.1 thorpej * Get a named extended attribute on a file or directory.
280 1.1 thorpej */
281 1.1 thorpej static int
282 1.1 thorpej extattr_get_vp(struct vnode *vp, int attrnamespace, const char *attrname,
283 1.4 christos void *data, size_t nbytes, struct lwp *l, register_t *retval)
284 1.1 thorpej {
285 1.1 thorpej struct uio auio, *auiop;
286 1.1 thorpej struct iovec aiov;
287 1.1 thorpej ssize_t cnt;
288 1.1 thorpej size_t size, *sizep;
289 1.1 thorpej int error;
290 1.1 thorpej
291 1.1 thorpej vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
292 1.1 thorpej
293 1.1 thorpej /*
294 1.1 thorpej * Slightly unusual semantics: if the user provides a NULL data
295 1.1 thorpej * pointer, they don't want to receive the data, just the maximum
296 1.1 thorpej * read length.
297 1.1 thorpej */
298 1.1 thorpej auiop = NULL;
299 1.1 thorpej sizep = NULL;
300 1.1 thorpej cnt = 0;
301 1.1 thorpej if (data != NULL) {
302 1.1 thorpej aiov.iov_base = data;
303 1.1 thorpej aiov.iov_len = nbytes;
304 1.1 thorpej auio.uio_iov = &aiov;
305 1.1 thorpej auio.uio_offset = 0;
306 1.1 thorpej if (nbytes > INT_MAX) {
307 1.1 thorpej error = EINVAL;
308 1.1 thorpej goto done;
309 1.1 thorpej }
310 1.1 thorpej auio.uio_resid = nbytes;
311 1.1 thorpej auio.uio_rw = UIO_READ;
312 1.5 yamt KASSERT(l == curlwp);
313 1.5 yamt auio.uio_vmspace = l->l_proc->p_vmspace;
314 1.1 thorpej auiop = &auio;
315 1.1 thorpej cnt = nbytes;
316 1.1 thorpej } else
317 1.1 thorpej sizep = &size;
318 1.1 thorpej
319 1.28 manu ktrkuser("xattr-name", (void *)__UNCONST(attrname), strlen(attrname));
320 1.28 manu
321 1.1 thorpej error = VOP_GETEXTATTR(vp, attrnamespace, attrname, auiop, sizep,
322 1.13 pooka l->l_cred);
323 1.1 thorpej
324 1.1 thorpej if (auiop != NULL) {
325 1.1 thorpej cnt -= auio.uio_resid;
326 1.1 thorpej retval[0] = cnt;
327 1.28 manu
328 1.28 manu ktrkuser("xattr-val", data, cnt);
329 1.1 thorpej } else
330 1.1 thorpej retval[0] = size;
331 1.1 thorpej
332 1.1 thorpej done:
333 1.22 hannken VOP_UNLOCK(vp);
334 1.1 thorpej return (error);
335 1.1 thorpej }
336 1.1 thorpej
337 1.1 thorpej /*
338 1.1 thorpej * extattr_delete_vp:
339 1.1 thorpej *
340 1.1 thorpej * Delete a named extended attribute on a file or directory.
341 1.1 thorpej */
342 1.1 thorpej static int
343 1.1 thorpej extattr_delete_vp(struct vnode *vp, int attrnamespace, const char *attrname,
344 1.4 christos struct lwp *l)
345 1.1 thorpej {
346 1.1 thorpej int error;
347 1.1 thorpej
348 1.1 thorpej vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
349 1.1 thorpej
350 1.28 manu ktrkuser("xattr-name", (void *)__UNCONST(attrname), strlen(attrname));
351 1.28 manu
352 1.13 pooka error = VOP_DELETEEXTATTR(vp, attrnamespace, attrname, l->l_cred);
353 1.1 thorpej if (error == EOPNOTSUPP)
354 1.1 thorpej error = VOP_SETEXTATTR(vp, attrnamespace, attrname, NULL,
355 1.13 pooka l->l_cred);
356 1.1 thorpej
357 1.22 hannken VOP_UNLOCK(vp);
358 1.1 thorpej return (error);
359 1.1 thorpej }
360 1.1 thorpej
361 1.1 thorpej /*
362 1.1 thorpej * extattr_list_vp:
363 1.1 thorpej *
364 1.1 thorpej * Retrieve a list of extended attributes on a file or directory.
365 1.1 thorpej */
366 1.1 thorpej static int
367 1.1 thorpej extattr_list_vp(struct vnode *vp, int attrnamespace, void *data, size_t nbytes,
368 1.27 manu int flag, struct lwp *l, register_t *retval)
369 1.1 thorpej {
370 1.1 thorpej struct uio auio, *auiop;
371 1.1 thorpej size_t size, *sizep;
372 1.1 thorpej struct iovec aiov;
373 1.1 thorpej ssize_t cnt;
374 1.1 thorpej int error;
375 1.1 thorpej
376 1.1 thorpej vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
377 1.1 thorpej
378 1.1 thorpej auiop = NULL;
379 1.1 thorpej sizep = NULL;
380 1.1 thorpej cnt = 0;
381 1.1 thorpej if (data != NULL) {
382 1.1 thorpej aiov.iov_base = data;
383 1.1 thorpej aiov.iov_len = nbytes;
384 1.1 thorpej auio.uio_iov = &aiov;
385 1.1 thorpej auio.uio_offset = 0;
386 1.1 thorpej if (nbytes > INT_MAX) {
387 1.1 thorpej error = EINVAL;
388 1.1 thorpej goto done;
389 1.1 thorpej }
390 1.1 thorpej auio.uio_resid = nbytes;
391 1.1 thorpej auio.uio_rw = UIO_READ;
392 1.5 yamt KASSERT(l == curlwp);
393 1.5 yamt auio.uio_vmspace = l->l_proc->p_vmspace;
394 1.1 thorpej auiop = &auio;
395 1.1 thorpej cnt = nbytes;
396 1.1 thorpej } else
397 1.1 thorpej sizep = &size;
398 1.1 thorpej
399 1.27 manu error = VOP_LISTEXTATTR(vp, attrnamespace, auiop, sizep,
400 1.27 manu flag, l->l_cred);
401 1.1 thorpej
402 1.1 thorpej if (auiop != NULL) {
403 1.1 thorpej cnt -= auio.uio_resid;
404 1.1 thorpej retval[0] = cnt;
405 1.28 manu
406 1.28 manu ktrkuser("xattr-list", data, cnt);
407 1.1 thorpej } else
408 1.1 thorpej retval[0] = size;
409 1.1 thorpej
410 1.1 thorpej done:
411 1.22 hannken VOP_UNLOCK(vp);
412 1.1 thorpej return (error);
413 1.1 thorpej }
414 1.1 thorpej
415 1.1 thorpej /*****************************************************************************
416 1.1 thorpej * BSD <sys/extattr.h> API for file system extended attributes
417 1.1 thorpej *****************************************************************************/
418 1.1 thorpej
419 1.1 thorpej int
420 1.15 dsl sys_extattr_set_fd(struct lwp *l, const struct sys_extattr_set_fd_args *uap, register_t *retval)
421 1.1 thorpej {
422 1.15 dsl /* {
423 1.1 thorpej syscallarg(int) fd;
424 1.1 thorpej syscallarg(int) attrnamespace;
425 1.1 thorpej syscallarg(const char *) attrname;
426 1.1 thorpej syscallarg(const void *) data;
427 1.1 thorpej syscallarg(size_t) nbytes;
428 1.15 dsl } */
429 1.1 thorpej struct file *fp;
430 1.1 thorpej struct vnode *vp;
431 1.1 thorpej char attrname[EXTATTR_MAXNAMELEN];
432 1.1 thorpej int error;
433 1.1 thorpej
434 1.1 thorpej error = copyinstr(SCARG(uap, attrname), attrname, sizeof(attrname),
435 1.1 thorpej NULL);
436 1.1 thorpej if (error)
437 1.1 thorpej return (error);
438 1.1 thorpej
439 1.19 ad error = fd_getvnode(SCARG(uap, fd), &fp);
440 1.1 thorpej if (error)
441 1.1 thorpej return (error);
442 1.1 thorpej vp = (struct vnode *) fp->f_data;
443 1.1 thorpej
444 1.1 thorpej error = extattr_set_vp(vp, SCARG(uap, attrnamespace), attrname,
445 1.24 manu SCARG(uap, data), SCARG(uap, nbytes), l, retval, 0);
446 1.1 thorpej
447 1.17 ad fd_putfile(SCARG(uap, fd));
448 1.1 thorpej return (error);
449 1.1 thorpej }
450 1.1 thorpej
451 1.1 thorpej int
452 1.15 dsl sys_extattr_set_file(struct lwp *l, const struct sys_extattr_set_file_args *uap, register_t *retval)
453 1.1 thorpej {
454 1.15 dsl /* {
455 1.1 thorpej syscallarg(const char *) path;
456 1.1 thorpej syscallarg(int) attrnamespace;
457 1.1 thorpej syscallarg(const char *) attrname;
458 1.1 thorpej syscallarg(const void *) data;
459 1.1 thorpej syscallarg(size_t) nbytes;
460 1.15 dsl } */
461 1.20 dholland struct vnode *vp;
462 1.1 thorpej char attrname[EXTATTR_MAXNAMELEN];
463 1.1 thorpej int error;
464 1.1 thorpej
465 1.1 thorpej error = copyinstr(SCARG(uap, attrname), attrname, sizeof(attrname),
466 1.1 thorpej NULL);
467 1.1 thorpej if (error)
468 1.1 thorpej return (error);
469 1.1 thorpej
470 1.20 dholland error = namei_simple_user(SCARG(uap, path),
471 1.20 dholland NSM_FOLLOW_NOEMULROOT, &vp);
472 1.1 thorpej if (error)
473 1.1 thorpej return (error);
474 1.1 thorpej
475 1.20 dholland error = extattr_set_vp(vp, SCARG(uap, attrnamespace), attrname,
476 1.24 manu SCARG(uap, data), SCARG(uap, nbytes), l, retval, 0);
477 1.1 thorpej
478 1.20 dholland vrele(vp);
479 1.1 thorpej return (error);
480 1.1 thorpej }
481 1.1 thorpej
482 1.1 thorpej int
483 1.15 dsl sys_extattr_set_link(struct lwp *l, const struct sys_extattr_set_link_args *uap, register_t *retval)
484 1.1 thorpej {
485 1.15 dsl /* {
486 1.1 thorpej syscallarg(const char *) path;
487 1.1 thorpej syscallarg(int) attrnamespace;
488 1.1 thorpej syscallarg(const char *) attrname;
489 1.1 thorpej syscallarg(const void *) data;
490 1.1 thorpej syscallarg(size_t) nbytes;
491 1.15 dsl } */
492 1.20 dholland struct vnode *vp;
493 1.1 thorpej char attrname[EXTATTR_MAXNAMELEN];
494 1.1 thorpej int error;
495 1.1 thorpej
496 1.1 thorpej error = copyinstr(SCARG(uap, attrname), attrname, sizeof(attrname),
497 1.1 thorpej NULL);
498 1.1 thorpej if (error)
499 1.1 thorpej return (error);
500 1.1 thorpej
501 1.20 dholland error = namei_simple_user(SCARG(uap, path),
502 1.20 dholland NSM_NOFOLLOW_NOEMULROOT, &vp);
503 1.1 thorpej if (error)
504 1.1 thorpej return (error);
505 1.1 thorpej
506 1.20 dholland error = extattr_set_vp(vp, SCARG(uap, attrnamespace), attrname,
507 1.24 manu SCARG(uap, data), SCARG(uap, nbytes), l, retval, 0);
508 1.1 thorpej
509 1.20 dholland vrele(vp);
510 1.1 thorpej return (error);
511 1.1 thorpej }
512 1.1 thorpej
513 1.1 thorpej int
514 1.15 dsl sys_extattr_get_fd(struct lwp *l, const struct sys_extattr_get_fd_args *uap, register_t *retval)
515 1.1 thorpej {
516 1.15 dsl /* {
517 1.1 thorpej syscallarg(int) fd;
518 1.1 thorpej syscallarg(int) attrnamespace;
519 1.1 thorpej syscallarg(const char *) attrname;
520 1.1 thorpej syscallarg(void *) data;
521 1.1 thorpej syscallarg(size_t) nbytes;
522 1.15 dsl } */
523 1.1 thorpej struct file *fp;
524 1.1 thorpej struct vnode *vp;
525 1.1 thorpej char attrname[EXTATTR_MAXNAMELEN];
526 1.1 thorpej int error;
527 1.1 thorpej
528 1.1 thorpej error = copyinstr(SCARG(uap, attrname), attrname, sizeof(attrname),
529 1.1 thorpej NULL);
530 1.1 thorpej if (error)
531 1.1 thorpej return (error);
532 1.1 thorpej
533 1.19 ad error = fd_getvnode(SCARG(uap, fd), &fp);
534 1.1 thorpej if (error)
535 1.1 thorpej return (error);
536 1.1 thorpej vp = (struct vnode *) fp->f_data;
537 1.1 thorpej
538 1.1 thorpej error = extattr_get_vp(vp, SCARG(uap, attrnamespace), attrname,
539 1.4 christos SCARG(uap, data), SCARG(uap, nbytes), l, retval);
540 1.1 thorpej
541 1.17 ad fd_putfile(SCARG(uap, fd));
542 1.1 thorpej return (error);
543 1.1 thorpej }
544 1.1 thorpej
545 1.1 thorpej int
546 1.15 dsl sys_extattr_get_file(struct lwp *l, const struct sys_extattr_get_file_args *uap, register_t *retval)
547 1.1 thorpej {
548 1.15 dsl /* {
549 1.1 thorpej syscallarg(const char *) path;
550 1.1 thorpej syscallarg(int) attrnamespace;
551 1.1 thorpej syscallarg(const char *) attrname;
552 1.1 thorpej syscallarg(void *) data;
553 1.1 thorpej syscallarg(size_t) nbytes;
554 1.15 dsl } */
555 1.20 dholland struct vnode *vp;
556 1.1 thorpej char attrname[EXTATTR_MAXNAMELEN];
557 1.1 thorpej int error;
558 1.1 thorpej
559 1.1 thorpej error = copyinstr(SCARG(uap, attrname), attrname, sizeof(attrname),
560 1.1 thorpej NULL);
561 1.1 thorpej if (error)
562 1.1 thorpej return (error);
563 1.1 thorpej
564 1.20 dholland error = namei_simple_user(SCARG(uap, path),
565 1.20 dholland NSM_FOLLOW_NOEMULROOT, &vp);
566 1.1 thorpej if (error)
567 1.1 thorpej return (error);
568 1.1 thorpej
569 1.20 dholland error = extattr_get_vp(vp, SCARG(uap, attrnamespace), attrname,
570 1.4 christos SCARG(uap, data), SCARG(uap, nbytes), l, retval);
571 1.1 thorpej
572 1.20 dholland vrele(vp);
573 1.1 thorpej return (error);
574 1.1 thorpej }
575 1.1 thorpej
576 1.1 thorpej int
577 1.15 dsl sys_extattr_get_link(struct lwp *l, const struct sys_extattr_get_link_args *uap, register_t *retval)
578 1.1 thorpej {
579 1.15 dsl /* {
580 1.1 thorpej syscallarg(const char *) path;
581 1.1 thorpej syscallarg(int) attrnamespace;
582 1.1 thorpej syscallarg(const char *) attrname;
583 1.1 thorpej syscallarg(void *) data;
584 1.1 thorpej syscallarg(size_t) nbytes;
585 1.15 dsl } */
586 1.20 dholland struct vnode *vp;
587 1.1 thorpej char attrname[EXTATTR_MAXNAMELEN];
588 1.1 thorpej int error;
589 1.1 thorpej
590 1.1 thorpej error = copyinstr(SCARG(uap, attrname), attrname, sizeof(attrname),
591 1.1 thorpej NULL);
592 1.1 thorpej if (error)
593 1.1 thorpej return (error);
594 1.1 thorpej
595 1.20 dholland error = namei_simple_user(SCARG(uap, path),
596 1.20 dholland NSM_NOFOLLOW_NOEMULROOT, &vp);
597 1.1 thorpej if (error)
598 1.1 thorpej return (error);
599 1.1 thorpej
600 1.20 dholland error = extattr_get_vp(vp, SCARG(uap, attrnamespace), attrname,
601 1.4 christos SCARG(uap, data), SCARG(uap, nbytes), l, retval);
602 1.1 thorpej
603 1.20 dholland vrele(vp);
604 1.1 thorpej return (error);
605 1.1 thorpej }
606 1.1 thorpej
607 1.1 thorpej int
608 1.15 dsl sys_extattr_delete_fd(struct lwp *l, const struct sys_extattr_delete_fd_args *uap, register_t *retval)
609 1.1 thorpej {
610 1.15 dsl /* {
611 1.1 thorpej syscallarg(int) fd;
612 1.1 thorpej syscallarg(int) attrnamespace;
613 1.1 thorpej syscallarg(const char *) attrname;
614 1.15 dsl } */
615 1.1 thorpej struct file *fp;
616 1.1 thorpej struct vnode *vp;
617 1.1 thorpej char attrname[EXTATTR_MAXNAMELEN];
618 1.1 thorpej int error;
619 1.1 thorpej
620 1.1 thorpej error = copyinstr(SCARG(uap, attrname), attrname, sizeof(attrname),
621 1.1 thorpej NULL);
622 1.1 thorpej if (error)
623 1.1 thorpej return (error);
624 1.1 thorpej
625 1.19 ad error = fd_getvnode(SCARG(uap, fd), &fp);
626 1.1 thorpej if (error)
627 1.1 thorpej return (error);
628 1.1 thorpej vp = (struct vnode *) fp->f_data;
629 1.1 thorpej
630 1.4 christos error = extattr_delete_vp(vp, SCARG(uap, attrnamespace), attrname, l);
631 1.1 thorpej
632 1.17 ad fd_putfile(SCARG(uap, fd));
633 1.1 thorpej return (error);
634 1.1 thorpej }
635 1.1 thorpej
636 1.1 thorpej int
637 1.15 dsl sys_extattr_delete_file(struct lwp *l, const struct sys_extattr_delete_file_args *uap, register_t *retval)
638 1.1 thorpej {
639 1.15 dsl /* {
640 1.1 thorpej syscallarg(const char *) path;
641 1.1 thorpej syscallarg(int) attrnamespace;
642 1.1 thorpej syscallarg(const char *) attrname;
643 1.15 dsl } */
644 1.20 dholland struct vnode *vp;
645 1.1 thorpej char attrname[EXTATTR_MAXNAMELEN];
646 1.1 thorpej int error;
647 1.1 thorpej
648 1.1 thorpej error = copyinstr(SCARG(uap, attrname), attrname, sizeof(attrname),
649 1.1 thorpej NULL);
650 1.1 thorpej if (error)
651 1.1 thorpej return (error);
652 1.1 thorpej
653 1.20 dholland error = namei_simple_user(SCARG(uap, path),
654 1.20 dholland NSM_FOLLOW_NOEMULROOT, &vp);
655 1.1 thorpej if (error)
656 1.1 thorpej return (error);
657 1.1 thorpej
658 1.20 dholland error = extattr_delete_vp(vp, SCARG(uap, attrnamespace), attrname, l);
659 1.1 thorpej
660 1.20 dholland vrele(vp);
661 1.1 thorpej return (error);
662 1.1 thorpej }
663 1.1 thorpej
664 1.1 thorpej int
665 1.15 dsl sys_extattr_delete_link(struct lwp *l, const struct sys_extattr_delete_link_args *uap, register_t *retval)
666 1.1 thorpej {
667 1.15 dsl /* {
668 1.1 thorpej syscallarg(const char *) path;
669 1.1 thorpej syscallarg(int) attrnamespace;
670 1.1 thorpej syscallarg(const char *) attrname;
671 1.15 dsl } */
672 1.20 dholland struct vnode *vp;
673 1.1 thorpej char attrname[EXTATTR_MAXNAMELEN];
674 1.1 thorpej int error;
675 1.1 thorpej
676 1.1 thorpej error = copyinstr(SCARG(uap, attrname), attrname, sizeof(attrname),
677 1.1 thorpej NULL);
678 1.1 thorpej if (error)
679 1.1 thorpej return (error);
680 1.1 thorpej
681 1.20 dholland error = namei_simple_user(SCARG(uap, path),
682 1.20 dholland NSM_NOFOLLOW_NOEMULROOT, &vp);
683 1.1 thorpej if (error)
684 1.1 thorpej return (error);
685 1.1 thorpej
686 1.20 dholland error = extattr_delete_vp(vp, SCARG(uap, attrnamespace), attrname, l);
687 1.1 thorpej
688 1.20 dholland vrele(vp);
689 1.1 thorpej return (error);
690 1.1 thorpej }
691 1.1 thorpej
692 1.1 thorpej int
693 1.15 dsl sys_extattr_list_fd(struct lwp *l, const struct sys_extattr_list_fd_args *uap, register_t *retval)
694 1.1 thorpej {
695 1.15 dsl /* {
696 1.1 thorpej syscallarg(int) fd;
697 1.1 thorpej syscallarg(int) attrnamespace;
698 1.1 thorpej syscallarg(void *) data;
699 1.1 thorpej syscallarg(size_t) nbytes;
700 1.15 dsl } */
701 1.1 thorpej struct file *fp;
702 1.1 thorpej struct vnode *vp;
703 1.1 thorpej int error;
704 1.1 thorpej
705 1.19 ad error = fd_getvnode(SCARG(uap, fd), &fp);
706 1.1 thorpej if (error)
707 1.1 thorpej return (error);
708 1.1 thorpej vp = (struct vnode *) fp->f_data;
709 1.1 thorpej
710 1.1 thorpej error = extattr_list_vp(vp, SCARG(uap, attrnamespace),
711 1.27 manu SCARG(uap, data), SCARG(uap, nbytes),
712 1.27 manu EXTATTR_LIST_LENPREFIX, l, retval);
713 1.1 thorpej
714 1.17 ad fd_putfile(SCARG(uap, fd));
715 1.1 thorpej return (error);
716 1.1 thorpej }
717 1.1 thorpej
718 1.1 thorpej int
719 1.15 dsl sys_extattr_list_file(struct lwp *l, const struct sys_extattr_list_file_args *uap, register_t *retval)
720 1.1 thorpej {
721 1.15 dsl /* {
722 1.1 thorpej syscallarg(const char *) path;
723 1.1 thorpej syscallarg(int) attrnamespace;
724 1.1 thorpej syscallarg(void *) data;
725 1.1 thorpej syscallarg(size_t) nbytes;
726 1.15 dsl } */
727 1.20 dholland struct vnode *vp;
728 1.1 thorpej int error;
729 1.1 thorpej
730 1.20 dholland error = namei_simple_user(SCARG(uap, path),
731 1.20 dholland NSM_FOLLOW_NOEMULROOT, &vp);
732 1.1 thorpej if (error)
733 1.1 thorpej return (error);
734 1.1 thorpej
735 1.20 dholland error = extattr_list_vp(vp, SCARG(uap, attrnamespace),
736 1.27 manu SCARG(uap, data), SCARG(uap, nbytes),
737 1.27 manu EXTATTR_LIST_LENPREFIX, l, retval);
738 1.1 thorpej
739 1.20 dholland vrele(vp);
740 1.1 thorpej return (error);
741 1.1 thorpej }
742 1.1 thorpej
743 1.1 thorpej int
744 1.15 dsl sys_extattr_list_link(struct lwp *l, const struct sys_extattr_list_link_args *uap, register_t *retval)
745 1.1 thorpej {
746 1.15 dsl /* {
747 1.1 thorpej syscallarg(const char *) path;
748 1.1 thorpej syscallarg(int) attrnamespace;
749 1.1 thorpej syscallarg(void *) data;
750 1.1 thorpej syscallarg(size_t) nbytes;
751 1.15 dsl } */
752 1.20 dholland struct vnode *vp;
753 1.1 thorpej int error;
754 1.1 thorpej
755 1.20 dholland error = namei_simple_user(SCARG(uap, path),
756 1.20 dholland NSM_NOFOLLOW_NOEMULROOT, &vp);
757 1.1 thorpej if (error)
758 1.1 thorpej return (error);
759 1.1 thorpej
760 1.20 dholland error = extattr_list_vp(vp, SCARG(uap, attrnamespace),
761 1.27 manu SCARG(uap, data), SCARG(uap, nbytes),
762 1.27 manu EXTATTR_LIST_LENPREFIX, l, retval);
763 1.1 thorpej
764 1.20 dholland vrele(vp);
765 1.1 thorpej return (error);
766 1.1 thorpej }
767 1.2 thorpej
768 1.2 thorpej /*****************************************************************************
769 1.2 thorpej * Linux-compatible <sys/xattr.h> API for file system extended attributes
770 1.2 thorpej *****************************************************************************/
771 1.2 thorpej
772 1.24 manu #define MATCH_NS(ns, key) (strncmp(ns, key, sizeof(ns) - 1) == 0)
773 1.24 manu static int
774 1.24 manu xattr_native(const char *key) {
775 1.24 manu if (MATCH_NS("system.", key))
776 1.24 manu return EXTATTR_NAMESPACE_SYSTEM;
777 1.24 manu else if (MATCH_NS("user.", key))
778 1.24 manu return EXTATTR_NAMESPACE_USER;
779 1.24 manu else if (MATCH_NS("security.", key))
780 1.24 manu return EXTATTR_NAMESPACE_SYSTEM;
781 1.24 manu else if (MATCH_NS("trusted.", key))
782 1.24 manu return EXTATTR_NAMESPACE_SYSTEM;
783 1.24 manu else
784 1.24 manu return EXTATTR_NAMESPACE_USER;
785 1.24 manu
786 1.24 manu }
787 1.24 manu #undef MATCH_NS
788 1.24 manu
789 1.29 drochner #define XATTR_ERRNO(e) ((e) == EOPNOTSUPP ? ENOTSUP : (e))
790 1.29 drochner
791 1.2 thorpej int
792 1.15 dsl sys_setxattr(struct lwp *l, const struct sys_setxattr_args *uap, register_t *retval)
793 1.2 thorpej {
794 1.15 dsl /* {
795 1.2 thorpej syscallarg(const char *) path;
796 1.2 thorpej syscallarg(const char *) name;
797 1.2 thorpej syscallarg(void *) value;
798 1.2 thorpej syscallarg(size_t) size;
799 1.2 thorpej syscallarg(int) flags;
800 1.15 dsl } */
801 1.20 dholland struct vnode *vp;
802 1.2 thorpej char attrname[XATTR_NAME_MAX];
803 1.24 manu int namespace;
804 1.24 manu register_t attrlen;
805 1.2 thorpej int error;
806 1.2 thorpej
807 1.2 thorpej error = copyinstr(SCARG(uap, name), attrname, sizeof(attrname),
808 1.2 thorpej NULL);
809 1.2 thorpej if (error)
810 1.24 manu goto out;
811 1.2 thorpej
812 1.20 dholland error = namei_simple_user(SCARG(uap, path),
813 1.20 dholland NSM_FOLLOW_NOEMULROOT, &vp);
814 1.2 thorpej if (error)
815 1.26 manu goto out;
816 1.2 thorpej
817 1.24 manu namespace = xattr_native(attrname);
818 1.2 thorpej
819 1.24 manu error = extattr_set_vp(vp, namespace,
820 1.24 manu attrname, SCARG(uap, value), SCARG(uap, size), l,
821 1.24 manu &attrlen, SCARG(uap, flags));
822 1.2 thorpej
823 1.20 dholland vrele(vp);
824 1.24 manu out:
825 1.24 manu *retval = (error == 0) ? 0 : -1;
826 1.29 drochner return (XATTR_ERRNO(error));
827 1.2 thorpej }
828 1.2 thorpej
829 1.2 thorpej int
830 1.15 dsl sys_lsetxattr(struct lwp *l, const struct sys_lsetxattr_args *uap, register_t *retval)
831 1.2 thorpej {
832 1.15 dsl /* {
833 1.2 thorpej syscallarg(const char *) path;
834 1.2 thorpej syscallarg(const char *) name;
835 1.2 thorpej syscallarg(void *) value;
836 1.2 thorpej syscallarg(size_t) size;
837 1.2 thorpej syscallarg(int) flags;
838 1.15 dsl } */
839 1.20 dholland struct vnode *vp;
840 1.2 thorpej char attrname[XATTR_NAME_MAX];
841 1.24 manu int namespace;
842 1.24 manu register_t attrlen;
843 1.2 thorpej int error;
844 1.2 thorpej
845 1.2 thorpej error = copyinstr(SCARG(uap, name), attrname, sizeof(attrname),
846 1.2 thorpej NULL);
847 1.2 thorpej if (error)
848 1.24 manu goto out;
849 1.2 thorpej
850 1.20 dholland error = namei_simple_user(SCARG(uap, path),
851 1.20 dholland NSM_NOFOLLOW_NOEMULROOT, &vp);
852 1.2 thorpej if (error)
853 1.26 manu goto out;
854 1.2 thorpej
855 1.24 manu namespace = xattr_native(attrname);
856 1.2 thorpej
857 1.24 manu error = extattr_set_vp(vp, namespace,
858 1.24 manu attrname, SCARG(uap, value), SCARG(uap, size), l,
859 1.24 manu &attrlen, SCARG(uap, flags));
860 1.2 thorpej
861 1.20 dholland vrele(vp);
862 1.24 manu out:
863 1.24 manu *retval = (error == 0) ? 0 : -1;
864 1.29 drochner return (XATTR_ERRNO(error));
865 1.2 thorpej }
866 1.2 thorpej
867 1.2 thorpej int
868 1.15 dsl sys_fsetxattr(struct lwp *l, const struct sys_fsetxattr_args *uap, register_t *retval)
869 1.2 thorpej {
870 1.15 dsl /* {
871 1.2 thorpej syscallarg(int) fd;
872 1.2 thorpej syscallarg(const char *) name;
873 1.2 thorpej syscallarg(void *) value;
874 1.2 thorpej syscallarg(size_t) size;
875 1.2 thorpej syscallarg(int) flags;
876 1.15 dsl } */
877 1.2 thorpej struct file *fp;
878 1.2 thorpej struct vnode *vp;
879 1.2 thorpej char attrname[XATTR_NAME_MAX];
880 1.24 manu int namespace;
881 1.24 manu register_t attrlen;
882 1.2 thorpej int error;
883 1.2 thorpej
884 1.2 thorpej error = copyinstr(SCARG(uap, name), attrname, sizeof(attrname),
885 1.2 thorpej NULL);
886 1.2 thorpej if (error)
887 1.24 manu goto out;
888 1.2 thorpej
889 1.19 ad error = fd_getvnode(SCARG(uap, fd), &fp);
890 1.2 thorpej if (error)
891 1.24 manu goto out;
892 1.2 thorpej vp = (struct vnode *) fp->f_data;
893 1.2 thorpej
894 1.24 manu namespace = xattr_native(attrname);
895 1.2 thorpej
896 1.24 manu error = extattr_set_vp(vp, namespace,
897 1.24 manu attrname, SCARG(uap, value), SCARG(uap, size), l,
898 1.24 manu &attrlen, SCARG(uap, flags));
899 1.2 thorpej
900 1.17 ad fd_putfile(SCARG(uap, fd));
901 1.24 manu out:
902 1.24 manu *retval = (error == 0) ? 0 : -1;
903 1.29 drochner return (XATTR_ERRNO(error));
904 1.2 thorpej }
905 1.2 thorpej
906 1.2 thorpej int
907 1.15 dsl sys_getxattr(struct lwp *l, const struct sys_getxattr_args *uap, register_t *retval)
908 1.2 thorpej {
909 1.15 dsl /* {
910 1.2 thorpej syscallarg(const char *) path;
911 1.2 thorpej syscallarg(const char *) name;
912 1.2 thorpej syscallarg(void *) value;
913 1.2 thorpej syscallarg(size_t) size;
914 1.15 dsl } */
915 1.20 dholland struct vnode *vp;
916 1.2 thorpej char attrname[XATTR_NAME_MAX];
917 1.24 manu int namespace;
918 1.2 thorpej int error;
919 1.2 thorpej
920 1.2 thorpej error = copyinstr(SCARG(uap, name), attrname, sizeof(attrname),
921 1.2 thorpej NULL);
922 1.2 thorpej if (error)
923 1.2 thorpej return (error);
924 1.2 thorpej
925 1.20 dholland error = namei_simple_user(SCARG(uap, path),
926 1.20 dholland NSM_FOLLOW_NOEMULROOT, &vp);
927 1.2 thorpej if (error)
928 1.2 thorpej return (error);
929 1.2 thorpej
930 1.24 manu namespace = xattr_native(attrname);
931 1.24 manu
932 1.24 manu error = extattr_get_vp(vp, namespace,
933 1.4 christos attrname, SCARG(uap, value), SCARG(uap, size), l, retval);
934 1.2 thorpej
935 1.20 dholland vrele(vp);
936 1.29 drochner return (XATTR_ERRNO(error));
937 1.2 thorpej }
938 1.2 thorpej
939 1.2 thorpej int
940 1.15 dsl sys_lgetxattr(struct lwp *l, const struct sys_lgetxattr_args *uap, register_t *retval)
941 1.2 thorpej {
942 1.15 dsl /* {
943 1.2 thorpej syscallarg(const char *) path;
944 1.2 thorpej syscallarg(const char *) name;
945 1.2 thorpej syscallarg(void *) value;
946 1.2 thorpej syscallarg(size_t) size;
947 1.15 dsl } */
948 1.20 dholland struct vnode *vp;
949 1.2 thorpej char attrname[XATTR_NAME_MAX];
950 1.24 manu int namespace;
951 1.2 thorpej int error;
952 1.2 thorpej
953 1.2 thorpej error = copyinstr(SCARG(uap, name), attrname, sizeof(attrname),
954 1.2 thorpej NULL);
955 1.2 thorpej if (error)
956 1.2 thorpej return (error);
957 1.2 thorpej
958 1.20 dholland error = namei_simple_user(SCARG(uap, path),
959 1.20 dholland NSM_NOFOLLOW_NOEMULROOT, &vp);
960 1.2 thorpej if (error)
961 1.2 thorpej return (error);
962 1.2 thorpej
963 1.24 manu namespace = xattr_native(attrname);
964 1.24 manu
965 1.24 manu error = extattr_get_vp(vp, namespace,
966 1.4 christos attrname, SCARG(uap, value), SCARG(uap, size), l, retval);
967 1.2 thorpej
968 1.20 dholland vrele(vp);
969 1.29 drochner return (XATTR_ERRNO(error));
970 1.2 thorpej }
971 1.2 thorpej
972 1.2 thorpej int
973 1.15 dsl sys_fgetxattr(struct lwp *l, const struct sys_fgetxattr_args *uap, register_t *retval)
974 1.2 thorpej {
975 1.15 dsl /* {
976 1.2 thorpej syscallarg(int) fd;
977 1.2 thorpej syscallarg(const char *) name;
978 1.2 thorpej syscallarg(void *) value;
979 1.2 thorpej syscallarg(size_t) size;
980 1.15 dsl } */
981 1.2 thorpej struct file *fp;
982 1.2 thorpej struct vnode *vp;
983 1.2 thorpej char attrname[XATTR_NAME_MAX];
984 1.24 manu int namespace;
985 1.2 thorpej int error;
986 1.2 thorpej
987 1.2 thorpej error = copyinstr(SCARG(uap, name), attrname, sizeof(attrname),
988 1.2 thorpej NULL);
989 1.2 thorpej if (error)
990 1.2 thorpej return (error);
991 1.2 thorpej
992 1.19 ad error = fd_getvnode(SCARG(uap, fd), &fp);
993 1.2 thorpej if (error)
994 1.2 thorpej return (error);
995 1.2 thorpej vp = (struct vnode *) fp->f_data;
996 1.2 thorpej
997 1.24 manu namespace = xattr_native(attrname);
998 1.24 manu
999 1.24 manu error = extattr_get_vp(vp, namespace,
1000 1.4 christos attrname, SCARG(uap, value), SCARG(uap, size), l, retval);
1001 1.2 thorpej
1002 1.17 ad fd_putfile(SCARG(uap, fd));
1003 1.29 drochner return (XATTR_ERRNO(error));
1004 1.2 thorpej }
1005 1.2 thorpej
1006 1.2 thorpej int
1007 1.15 dsl sys_listxattr(struct lwp *l, const struct sys_listxattr_args *uap, register_t *retval)
1008 1.2 thorpej {
1009 1.15 dsl /* {
1010 1.2 thorpej syscallarg(const char *) path;
1011 1.2 thorpej syscallarg(char *) list;
1012 1.2 thorpej syscallarg(size_t) size;
1013 1.15 dsl } */
1014 1.20 dholland struct vnode *vp;
1015 1.24 manu char *list;
1016 1.24 manu size_t size;
1017 1.24 manu register_t listsize_usr, listsize_sys;
1018 1.2 thorpej int error;
1019 1.2 thorpej
1020 1.20 dholland error = namei_simple_user(SCARG(uap, path),
1021 1.20 dholland NSM_FOLLOW_NOEMULROOT, &vp);
1022 1.2 thorpej if (error)
1023 1.2 thorpej return (error);
1024 1.2 thorpej
1025 1.24 manu list = SCARG(uap, list);
1026 1.24 manu size = SCARG(uap, size);
1027 1.24 manu
1028 1.20 dholland error = extattr_list_vp(vp, EXTATTR_NAMESPACE_USER,
1029 1.27 manu list, size, 0, l, &listsize_usr);
1030 1.24 manu if (error)
1031 1.24 manu goto out;
1032 1.24 manu
1033 1.24 manu if (list)
1034 1.24 manu list += listsize_usr;
1035 1.24 manu if (size)
1036 1.24 manu size -= listsize_usr;
1037 1.2 thorpej
1038 1.24 manu error = extattr_list_vp(vp, EXTATTR_NAMESPACE_SYSTEM,
1039 1.27 manu list, size, 0, l, &listsize_sys);
1040 1.25 manu switch (error) {
1041 1.25 manu case EPERM:
1042 1.25 manu error = 0; /* Ignore and just skip system EA */
1043 1.25 manu listsize_sys = 0;
1044 1.25 manu break;
1045 1.25 manu case 0:
1046 1.25 manu break;
1047 1.25 manu default:
1048 1.24 manu goto out;
1049 1.25 manu break;
1050 1.25 manu }
1051 1.24 manu
1052 1.24 manu *retval = listsize_usr + listsize_sys;
1053 1.24 manu
1054 1.24 manu out:
1055 1.20 dholland vrele(vp);
1056 1.29 drochner return (XATTR_ERRNO(error));
1057 1.2 thorpej }
1058 1.2 thorpej
1059 1.2 thorpej int
1060 1.15 dsl sys_llistxattr(struct lwp *l, const struct sys_llistxattr_args *uap, register_t *retval)
1061 1.2 thorpej {
1062 1.15 dsl /* {
1063 1.2 thorpej syscallarg(const char *) path;
1064 1.2 thorpej syscallarg(char *) list;
1065 1.2 thorpej syscallarg(size_t) size;
1066 1.15 dsl } */
1067 1.20 dholland struct vnode *vp;
1068 1.24 manu char *list;
1069 1.24 manu size_t size;
1070 1.24 manu register_t listsize_usr, listsize_sys;
1071 1.2 thorpej int error;
1072 1.2 thorpej
1073 1.20 dholland error = namei_simple_user(SCARG(uap, path),
1074 1.20 dholland NSM_NOFOLLOW_NOEMULROOT, &vp);
1075 1.2 thorpej if (error)
1076 1.2 thorpej return (error);
1077 1.2 thorpej
1078 1.24 manu list = SCARG(uap, list);
1079 1.24 manu size = SCARG(uap, size);
1080 1.24 manu
1081 1.20 dholland error = extattr_list_vp(vp, EXTATTR_NAMESPACE_USER,
1082 1.27 manu list, size, 0, l, &listsize_usr);
1083 1.24 manu if (error)
1084 1.24 manu goto out;
1085 1.24 manu if (list)
1086 1.24 manu list += listsize_usr;
1087 1.24 manu if (size)
1088 1.24 manu size -= listsize_usr;
1089 1.2 thorpej
1090 1.24 manu error = extattr_list_vp(vp, EXTATTR_NAMESPACE_SYSTEM,
1091 1.27 manu list, size, 0, l, &listsize_sys);
1092 1.25 manu switch (error) {
1093 1.25 manu case EPERM:
1094 1.25 manu error = 0; /* Ignore and just skip system EA */
1095 1.25 manu listsize_sys = 0;
1096 1.25 manu break;
1097 1.25 manu case 0:
1098 1.25 manu break;
1099 1.25 manu default:
1100 1.24 manu goto out;
1101 1.25 manu break;
1102 1.25 manu }
1103 1.24 manu
1104 1.24 manu *retval = listsize_usr + listsize_sys;
1105 1.24 manu out:
1106 1.20 dholland vrele(vp);
1107 1.29 drochner return (XATTR_ERRNO(error));
1108 1.2 thorpej }
1109 1.2 thorpej
1110 1.2 thorpej int
1111 1.15 dsl sys_flistxattr(struct lwp *l, const struct sys_flistxattr_args *uap, register_t *retval)
1112 1.2 thorpej {
1113 1.15 dsl /* {
1114 1.2 thorpej syscallarg(int) fd;
1115 1.2 thorpej syscallarg(char *) list;
1116 1.2 thorpej syscallarg(size_t) size;
1117 1.15 dsl } */
1118 1.2 thorpej struct file *fp;
1119 1.2 thorpej struct vnode *vp;
1120 1.24 manu char *list;
1121 1.24 manu size_t size;
1122 1.24 manu register_t listsize_usr, listsize_sys;
1123 1.2 thorpej int error;
1124 1.2 thorpej
1125 1.19 ad error = fd_getvnode(SCARG(uap, fd), &fp);
1126 1.2 thorpej if (error)
1127 1.2 thorpej return (error);
1128 1.2 thorpej vp = (struct vnode *) fp->f_data;
1129 1.2 thorpej
1130 1.24 manu list = SCARG(uap, list);
1131 1.24 manu size = SCARG(uap, size);
1132 1.24 manu
1133 1.2 thorpej error = extattr_list_vp(vp, EXTATTR_NAMESPACE_USER,
1134 1.27 manu list, size, 0, l, &listsize_usr);
1135 1.24 manu if (error)
1136 1.24 manu goto out;
1137 1.24 manu
1138 1.24 manu if (list)
1139 1.24 manu list += listsize_usr;
1140 1.24 manu if (size)
1141 1.24 manu size -= listsize_usr;
1142 1.24 manu
1143 1.24 manu error = extattr_list_vp(vp, EXTATTR_NAMESPACE_SYSTEM,
1144 1.27 manu list, size, 0, l, &listsize_sys);
1145 1.25 manu switch (error) {
1146 1.25 manu case EPERM:
1147 1.25 manu error = 0; /* Ignore and just skip system EA */
1148 1.25 manu listsize_sys = 0;
1149 1.25 manu break;
1150 1.25 manu case 0:
1151 1.25 manu break;
1152 1.25 manu default:
1153 1.24 manu goto out;
1154 1.25 manu break;
1155 1.25 manu }
1156 1.24 manu
1157 1.24 manu *retval = listsize_usr + listsize_sys;
1158 1.24 manu out:
1159 1.2 thorpej
1160 1.17 ad fd_putfile(SCARG(uap, fd));
1161 1.29 drochner return (XATTR_ERRNO(error));
1162 1.2 thorpej }
1163 1.2 thorpej
1164 1.2 thorpej int
1165 1.15 dsl sys_removexattr(struct lwp *l, const struct sys_removexattr_args *uap, register_t *retval)
1166 1.2 thorpej {
1167 1.15 dsl /* {
1168 1.2 thorpej syscallarg(const char *) path;
1169 1.2 thorpej syscallarg(const char *) name;
1170 1.15 dsl } */
1171 1.20 dholland struct vnode *vp;
1172 1.2 thorpej char attrname[XATTR_NAME_MAX];
1173 1.24 manu int namespace;
1174 1.2 thorpej int error;
1175 1.2 thorpej
1176 1.2 thorpej error = copyinstr(SCARG(uap, name), attrname, sizeof(attrname),
1177 1.2 thorpej NULL);
1178 1.2 thorpej if (error)
1179 1.2 thorpej return (error);
1180 1.2 thorpej
1181 1.20 dholland error = namei_simple_user(SCARG(uap, path),
1182 1.20 dholland NSM_FOLLOW_NOEMULROOT, &vp);
1183 1.2 thorpej if (error)
1184 1.2 thorpej return (error);
1185 1.2 thorpej
1186 1.24 manu namespace = xattr_native(attrname);
1187 1.24 manu
1188 1.24 manu error = extattr_delete_vp(vp, namespace, attrname, l);
1189 1.2 thorpej
1190 1.20 dholland vrele(vp);
1191 1.29 drochner return (XATTR_ERRNO(error));
1192 1.2 thorpej }
1193 1.2 thorpej
1194 1.2 thorpej int
1195 1.15 dsl sys_lremovexattr(struct lwp *l, const struct sys_lremovexattr_args *uap, register_t *retval)
1196 1.2 thorpej {
1197 1.15 dsl /* {
1198 1.2 thorpej syscallarg(const char *) path;
1199 1.2 thorpej syscallarg(const char *) name;
1200 1.15 dsl } */
1201 1.20 dholland struct vnode *vp;
1202 1.2 thorpej char attrname[XATTR_NAME_MAX];
1203 1.24 manu int namespace;
1204 1.2 thorpej int error;
1205 1.2 thorpej
1206 1.2 thorpej error = copyinstr(SCARG(uap, name), attrname, sizeof(attrname),
1207 1.2 thorpej NULL);
1208 1.2 thorpej if (error)
1209 1.2 thorpej return (error);
1210 1.2 thorpej
1211 1.20 dholland error = namei_simple_user(SCARG(uap, path),
1212 1.20 dholland NSM_NOFOLLOW_NOEMULROOT, &vp);
1213 1.2 thorpej if (error)
1214 1.2 thorpej return (error);
1215 1.2 thorpej
1216 1.24 manu namespace = xattr_native(attrname);
1217 1.24 manu
1218 1.24 manu error = extattr_delete_vp(vp, namespace, attrname, l);
1219 1.2 thorpej
1220 1.20 dholland vrele(vp);
1221 1.29 drochner return (XATTR_ERRNO(error));
1222 1.2 thorpej }
1223 1.2 thorpej
1224 1.2 thorpej int
1225 1.15 dsl sys_fremovexattr(struct lwp *l, const struct sys_fremovexattr_args *uap, register_t *retval)
1226 1.2 thorpej {
1227 1.15 dsl /* {
1228 1.2 thorpej syscallarg(int) fd;
1229 1.2 thorpej syscallarg(const char *) name;
1230 1.15 dsl } */
1231 1.2 thorpej struct file *fp;
1232 1.2 thorpej struct vnode *vp;
1233 1.2 thorpej char attrname[XATTR_NAME_MAX];
1234 1.24 manu int namespace;
1235 1.2 thorpej int error;
1236 1.2 thorpej
1237 1.2 thorpej error = copyinstr(SCARG(uap, name), attrname, sizeof(attrname),
1238 1.2 thorpej NULL);
1239 1.2 thorpej if (error)
1240 1.2 thorpej return (error);
1241 1.2 thorpej
1242 1.19 ad error = fd_getvnode(SCARG(uap, fd), &fp);
1243 1.2 thorpej if (error)
1244 1.2 thorpej return (error);
1245 1.2 thorpej vp = (struct vnode *) fp->f_data;
1246 1.2 thorpej
1247 1.24 manu namespace = xattr_native(attrname);
1248 1.24 manu
1249 1.24 manu error = extattr_delete_vp(vp, namespace, attrname, l);
1250 1.2 thorpej
1251 1.17 ad fd_putfile(SCARG(uap, fd));
1252 1.29 drochner return (XATTR_ERRNO(error));
1253 1.2 thorpej }
1254