1 | /* $NetBSD: netbsd32_compat_30.c,v 1.31 2014/12/05 17:26:21 maxv 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 | * |
16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
21 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
22 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
23 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
24 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
25 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
26 | * SUCH DAMAGE. |
27 | */ |
28 | |
29 | #include <sys/cdefs.h> |
30 | __KERNEL_RCSID(0, "$NetBSD: netbsd32_compat_30.c,v 1.31 2014/12/05 17:26:21 maxv Exp $" ); |
31 | |
32 | #include <sys/param.h> |
33 | #include <sys/systm.h> |
34 | #include <sys/mount.h> |
35 | #include <sys/socket.h> |
36 | #include <sys/socketvar.h> |
37 | #include <sys/stat.h> |
38 | #include <sys/time.h> |
39 | #include <sys/ktrace.h> |
40 | #include <sys/resourcevar.h> |
41 | #include <sys/vnode.h> |
42 | #include <sys/file.h> |
43 | #include <sys/filedesc.h> |
44 | #include <sys/namei.h> |
45 | #include <sys/statvfs.h> |
46 | #include <sys/syscallargs.h> |
47 | #include <sys/proc.h> |
48 | #include <sys/dirent.h> |
49 | #include <sys/kauth.h> |
50 | #include <sys/vfs_syscalls.h> |
51 | |
52 | #include <compat/netbsd32/netbsd32.h> |
53 | #include <compat/netbsd32/netbsd32_syscallargs.h> |
54 | #include <compat/netbsd32/netbsd32_conv.h> |
55 | #include <compat/sys/mount.h> |
56 | |
57 | |
58 | int |
59 | compat_30_netbsd32_getdents(struct lwp *l, const struct compat_30_netbsd32_getdents_args *uap, register_t *retval) |
60 | { |
61 | /* { |
62 | syscallarg(int) fd; |
63 | syscallarg(netbsd32_charp) buf; |
64 | syscallarg(netbsd32_size_t) count; |
65 | } */ |
66 | file_t *fp; |
67 | int error, done; |
68 | char *buf; |
69 | netbsd32_size_t count; |
70 | |
71 | /* Limit the size on any kernel buffers used by VOP_READDIR */ |
72 | count = min(MAXBSIZE, SCARG(uap, count)); |
73 | |
74 | /* fd_getvnode() will use the descriptor for us */ |
75 | if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0) |
76 | return (error); |
77 | if ((fp->f_flag & FREAD) == 0) { |
78 | error = EBADF; |
79 | goto out; |
80 | } |
81 | if (count == 0) |
82 | goto out; |
83 | |
84 | buf = kmem_alloc(count, KM_SLEEP); |
85 | error = vn_readdir(fp, buf, UIO_SYSSPACE, count, &done, l, 0, 0); |
86 | if (error == 0) { |
87 | *retval = netbsd32_to_dirent12(buf, done); |
88 | error = copyout(buf, SCARG_P32(uap, buf), *retval); |
89 | } |
90 | kmem_free(buf, count); |
91 | out: |
92 | fd_putfile(SCARG(uap, fd)); |
93 | return (error); |
94 | } |
95 | |
96 | int |
97 | compat_30_netbsd32___stat13(struct lwp *l, const struct compat_30_netbsd32___stat13_args *uap, register_t *retval) |
98 | { |
99 | /* { |
100 | syscallarg(const netbsd32_charp) path; |
101 | syscallarg(netbsd32_stat13p_t) ub; |
102 | } */ |
103 | struct netbsd32_stat13 sb32; |
104 | struct stat sb; |
105 | int error; |
106 | const char *path; |
107 | |
108 | path = SCARG_P32(uap, path); |
109 | |
110 | error = do_sys_stat(path, FOLLOW, &sb); |
111 | if (error) |
112 | return (error); |
113 | netbsd32_from___stat13(&sb, &sb32); |
114 | error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32)); |
115 | return (error); |
116 | } |
117 | |
118 | int |
119 | compat_30_netbsd32___fstat13(struct lwp *l, const struct compat_30_netbsd32___fstat13_args *uap, register_t *retval) |
120 | { |
121 | /* { |
122 | syscallarg(int) fd; |
123 | syscallarg(netbsd32_stat13p_t) sb; |
124 | } */ |
125 | struct netbsd32_stat13 sb32; |
126 | struct stat ub; |
127 | int error; |
128 | |
129 | error = do_sys_fstat(SCARG(uap, fd), &ub); |
130 | if (error == 0) { |
131 | netbsd32_from___stat13(&ub, &sb32); |
132 | error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32)); |
133 | } |
134 | return (error); |
135 | } |
136 | |
137 | int |
138 | compat_30_netbsd32___lstat13(struct lwp *l, const struct compat_30_netbsd32___lstat13_args *uap, register_t *retval) |
139 | { |
140 | /* { |
141 | syscallarg(const netbsd32_charp) path; |
142 | syscallarg(netbsd32_stat13p_t) ub; |
143 | } */ |
144 | struct netbsd32_stat13 sb32; |
145 | struct stat sb; |
146 | int error; |
147 | const char *path; |
148 | |
149 | path = SCARG_P32(uap, path); |
150 | |
151 | error = do_sys_stat(path, NOFOLLOW, &sb); |
152 | if (error) |
153 | return (error); |
154 | netbsd32_from___stat13(&sb, &sb32); |
155 | error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32)); |
156 | return (error); |
157 | } |
158 | |
159 | int |
160 | compat_30_netbsd32_fhstat(struct lwp *l, const struct compat_30_netbsd32_fhstat_args *uap, register_t *retval) |
161 | { |
162 | /* { |
163 | syscallarg(const netbsd32_fhandlep_t) fhp; |
164 | syscallarg(netbsd32_stat13p_t) sb; |
165 | } */ |
166 | struct stat sb; |
167 | struct netbsd32_stat13 sb32; |
168 | int error; |
169 | struct compat_30_fhandle fh; |
170 | struct mount *mp; |
171 | struct vnode *vp; |
172 | |
173 | /* |
174 | * Must be super user |
175 | */ |
176 | if ((error = kauth_authorize_system(l->l_cred, |
177 | KAUTH_SYSTEM_FILEHANDLE, 0, NULL, NULL, NULL))) |
178 | return (error); |
179 | |
180 | if ((error = copyin(SCARG_P32(uap, fhp), &fh, sizeof(fh))) != 0) |
181 | return (error); |
182 | |
183 | if ((mp = vfs_getvfs(&fh.fh_fsid)) == NULL) |
184 | return (ESTALE); |
185 | if (mp->mnt_op->vfs_fhtovp == NULL) |
186 | return EOPNOTSUPP; |
187 | if ((error = VFS_FHTOVP(mp, (struct fid*)&fh.fh_fid, &vp))) |
188 | return (error); |
189 | error = vn_stat(vp, &sb); |
190 | vput(vp); |
191 | if (error) |
192 | return (error); |
193 | netbsd32_from___stat13(&sb, &sb32); |
194 | error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb)); |
195 | return (error); |
196 | } |
197 | |
198 | int |
199 | compat_30_netbsd32_fhstatvfs1(struct lwp *l, const struct compat_30_netbsd32_fhstatvfs1_args *uap, register_t *retval) |
200 | { |
201 | /* { |
202 | syscallarg(const netbsd32_fhandlep_t) fhp; |
203 | syscallarg(netbsd32_statvfsp_t) buf; |
204 | syscallarg(int) flags; |
205 | } */ |
206 | struct statvfs *sbuf; |
207 | struct netbsd32_statvfs *s32; |
208 | int error; |
209 | |
210 | sbuf = STATVFSBUF_GET(); |
211 | error = do_fhstatvfs(l, SCARG_P32(uap, fhp), FHANDLE_SIZE_COMPAT, sbuf, |
212 | SCARG(uap, flags)); |
213 | |
214 | if (error != 0) { |
215 | s32 = kmem_alloc(sizeof(*s32), KM_SLEEP); |
216 | netbsd32_from_statvfs(sbuf, s32); |
217 | error = copyout(s32, SCARG_P32(uap, buf), sizeof *s32); |
218 | kmem_free(s32, sizeof(*s32)); |
219 | } |
220 | STATVFSBUF_PUT(sbuf); |
221 | |
222 | return (error); |
223 | } |
224 | |
225 | int |
226 | compat_30_netbsd32_socket(struct lwp *l, const struct compat_30_netbsd32_socket_args *uap, register_t *retval) |
227 | { |
228 | /* { |
229 | syscallarg(int) domain; |
230 | syscallarg(int) type; |
231 | syscallarg(int) protocol; |
232 | } */ |
233 | struct compat_30_sys_socket_args ua; |
234 | |
235 | NETBSD32TO64_UAP(domain); |
236 | NETBSD32TO64_UAP(type); |
237 | NETBSD32TO64_UAP(protocol); |
238 | return (compat_30_sys_socket(l, &ua, retval)); |
239 | } |
240 | |
241 | int |
242 | compat_30_netbsd32_getfh(struct lwp *l, const struct compat_30_netbsd32_getfh_args *uap, register_t *retval) |
243 | { |
244 | /* { |
245 | syscallarg(const netbsd32_charp) fname; |
246 | syscallarg(netbsd32_compat_30_fhandlep_t) fhp; |
247 | } */ |
248 | struct compat_30_sys_getfh_args ua; |
249 | |
250 | NETBSD32TOP_UAP(fname, const char); |
251 | NETBSD32TOP_UAP(fhp, struct compat_30_fhandle); |
252 | /* Lucky for us a fhandle_t doesn't change sizes */ |
253 | return (compat_30_sys_getfh(l, &ua, retval)); |
254 | } |
255 | |
256 | |
257 | int |
258 | compat_30_netbsd32___fhstat30(struct lwp *l, const struct compat_30_netbsd32___fhstat30_args *uap, register_t *retval) |
259 | { |
260 | /* { |
261 | syscallarg(const netbsd32_fhandlep_t) fhp; |
262 | syscallarg(netbsd32_statp_t) sb; |
263 | } */ |
264 | struct stat sb; |
265 | struct netbsd32_stat50 sb32; |
266 | int error; |
267 | |
268 | error = do_fhstat(l, SCARG_P32(uap, fhp), FHANDLE_SIZE_COMPAT, &sb); |
269 | if (error) |
270 | return error; |
271 | |
272 | netbsd32_from___stat50(&sb, &sb32); |
273 | error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32)); |
274 | return error; |
275 | } |
276 | |
277 | /* |
278 | * Open a file given a file handle. |
279 | * |
280 | * Check permissions, allocate an open file structure, |
281 | * and call the device open routine if any. |
282 | */ |
283 | int |
284 | compat_30_netbsd32_fhopen(struct lwp *l, const struct compat_30_netbsd32_fhopen_args *uap, register_t *retval) |
285 | { |
286 | /* { |
287 | syscallarg(const fhandle_t *) fhp; |
288 | syscallarg(int) flags; |
289 | } */ |
290 | struct compat_30_sys_fhopen_args ua; |
291 | |
292 | NETBSD32TOP_UAP(fhp, struct compat_30_fhandle); |
293 | NETBSD32TO64_UAP(flags); |
294 | return (compat_30_sys_fhopen(l, &ua, retval)); |
295 | } |
296 | |