netbsd32_compat_30.c revision 1.23
1 /* $NetBSD: netbsd32_compat_30.c,v 1.23 2007/12/20 23:03:01 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 1.23 2007/12/20 23:03:01 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(struct lwp *l, const struct compat_30_netbsd32_getdents_args *uap, register_t *retval) 65 { 66 /* { 67 syscallarg(int) fd; 68 syscallarg(netbsd32_charp) buf; 69 syscallarg(netbsd32_size_t) count; 70 } */ 71 struct file *fp; 72 int error, done; 73 char *buf; 74 netbsd32_size_t count; 75 struct proc *p = l->l_proc; 76 77 /* Limit the size on any kernel buffers used by VOP_READDIR */ 78 count = min(MAXBSIZE, SCARG(uap, count)); 79 80 /* getvnode() will use the descriptor for us */ 81 if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0) 82 return (error); 83 if ((fp->f_flag & FREAD) == 0) { 84 error = EBADF; 85 goto out; 86 } 87 buf = malloc(count, M_TEMP, M_WAITOK); 88 error = vn_readdir(fp, buf, UIO_SYSSPACE, count, &done, l, 0, 0); 89 if (error == 0) { 90 *retval = netbsd32_to_dirent12(buf, done); 91 error = copyout(buf, SCARG_P32(uap, buf), *retval); 92 } 93 free(buf, M_TEMP); 94 out: 95 FILE_UNUSE(fp, l); 96 return (error); 97 } 98 99 int 100 compat_30_netbsd32___stat13(struct lwp *l, const struct compat_30_netbsd32___stat13_args *uap, register_t *retval) 101 { 102 /* { 103 syscallarg(const netbsd32_charp) path; 104 syscallarg(netbsd32_stat13p_t) ub; 105 } */ 106 struct netbsd32_stat13 sb32; 107 struct stat sb; 108 int error; 109 const char *path; 110 111 path = SCARG_P32(uap, path); 112 113 error = do_sys_stat(l, path, FOLLOW, &sb); 114 if (error) 115 return (error); 116 netbsd32_from___stat13(&sb, &sb32); 117 error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32)); 118 return (error); 119 } 120 121 int 122 compat_30_netbsd32___fstat13(struct lwp *l, const struct compat_30_netbsd32___fstat13_args *uap, register_t *retval) 123 { 124 /* { 125 syscallarg(int) fd; 126 syscallarg(netbsd32_stat13p_t) sb; 127 } */ 128 int fd = SCARG(uap, fd); 129 struct proc *p = l->l_proc; 130 struct filedesc *fdp = p->p_fd; 131 struct file *fp; 132 struct netbsd32_stat13 sb32; 133 struct stat ub; 134 int error = 0; 135 136 if ((fp = fd_getfile(fdp, fd)) == NULL) 137 return (EBADF); 138 139 FILE_USE(fp); 140 error = (*fp->f_ops->fo_stat)(fp, &ub, l); 141 FILE_UNUSE(fp, l); 142 143 if (error == 0) { 144 netbsd32_from___stat13(&ub, &sb32); 145 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32)); 146 } 147 return (error); 148 } 149 150 int 151 compat_30_netbsd32___lstat13(struct lwp *l, const struct compat_30_netbsd32___lstat13_args *uap, register_t *retval) 152 { 153 /* { 154 syscallarg(const netbsd32_charp) path; 155 syscallarg(netbsd32_stat13p_t) ub; 156 } */ 157 struct netbsd32_stat13 sb32; 158 struct stat sb; 159 int error; 160 const char *path; 161 162 path = SCARG_P32(uap, path); 163 164 error = do_sys_stat(l, path, NOFOLLOW, &sb); 165 if (error) 166 return (error); 167 netbsd32_from___stat13(&sb, &sb32); 168 error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32)); 169 return (error); 170 } 171 172 int 173 compat_30_netbsd32_fhstat(struct lwp *l, const struct compat_30_netbsd32_fhstat_args *uap, register_t *retval) 174 { 175 /* { 176 syscallarg(const netbsd32_fhandlep_t) fhp; 177 syscallarg(netbsd32_stat13p_t) sb; 178 } */ 179 struct stat sb; 180 struct netbsd32_stat13 sb32; 181 int error; 182 struct compat_30_fhandle fh; 183 struct mount *mp; 184 struct vnode *vp; 185 186 /* 187 * Must be super user 188 */ 189 if ((error = kauth_authorize_system(l->l_cred, 190 KAUTH_SYSTEM_FILEHANDLE, 0, NULL, NULL, NULL))) 191 return (error); 192 193 if ((error = copyin(SCARG_P32(uap, fhp), &fh, sizeof(fh))) != 0) 194 return (error); 195 196 if ((mp = vfs_getvfs(&fh.fh_fsid)) == NULL) 197 return (ESTALE); 198 if (mp->mnt_op->vfs_fhtovp == NULL) 199 return EOPNOTSUPP; 200 if ((error = VFS_FHTOVP(mp, (struct fid*)&fh.fh_fid, &vp))) 201 return (error); 202 error = vn_stat(vp, &sb, l); 203 vput(vp); 204 if (error) 205 return (error); 206 netbsd32_from___stat13(&sb, &sb32); 207 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb)); 208 return (error); 209 } 210 211 int 212 compat_30_netbsd32_fhstatvfs1(struct lwp *l, const struct compat_30_netbsd32_fhstatvfs1_args *uap, register_t *retval) 213 { 214 /* { 215 syscallarg(const netbsd32_fhandlep_t) fhp; 216 syscallarg(netbsd32_statvfsp_t) buf; 217 syscallarg(int) flags; 218 } */ 219 struct statvfs *sbuf; 220 struct netbsd32_statvfs *s32; 221 int error; 222 223 sbuf = STATVFSBUF_GET(); 224 error = do_fhstatvfs(l, SCARG_P32(uap, fhp), FHANDLE_SIZE_COMPAT, sbuf, 225 SCARG(uap, flags)); 226 227 if (error != 0) { 228 s32 = malloc(sizeof *s32, M_TEMP, M_WAITOK); 229 netbsd32_from_statvfs(sbuf, s32); 230 error = copyout(s32, SCARG_P32(uap, buf), sizeof *s32); 231 free(s32, M_TEMP); 232 } 233 STATVFSBUF_PUT(sbuf); 234 235 return (error); 236 } 237 238 int 239 compat_30_netbsd32_socket(struct lwp *l, const struct compat_30_netbsd32_socket_args *uap, register_t *retval) 240 { 241 /* { 242 syscallarg(int) domain; 243 syscallarg(int) type; 244 syscallarg(int) protocol; 245 } */ 246 struct compat_30_sys_socket_args ua; 247 248 NETBSD32TO64_UAP(domain); 249 NETBSD32TO64_UAP(type); 250 NETBSD32TO64_UAP(protocol); 251 return (compat_30_sys_socket(l, &ua, retval)); 252 } 253 254 int 255 compat_30_netbsd32_getfh(struct lwp *l, const struct compat_30_netbsd32_getfh_args *uap, register_t *retval) 256 { 257 /* { 258 syscallarg(const netbsd32_charp) fname; 259 syscallarg(netbsd32_compat_30_fhandlep_t) fhp; 260 } */ 261 struct compat_30_sys_getfh_args ua; 262 263 NETBSD32TOP_UAP(fname, const char); 264 NETBSD32TOP_UAP(fhp, struct compat_30_fhandle); 265 /* Lucky for us a fhandle_t doesn't change sizes */ 266 return (compat_30_sys_getfh(l, &ua, retval)); 267 } 268 269 270 int 271 compat_30_netbsd32_sys___fhstat30(struct lwp *l, const struct compat_30_netbsd32_sys___fhstat30_args *uap, register_t *retval) 272 { 273 /* { 274 syscallarg(const netbsd32_fhandlep_t) fhp; 275 syscallarg(netbsd32_statp_t) sb; 276 } */ 277 struct stat sb; 278 struct netbsd32_stat sb32; 279 int error; 280 281 error = do_fhstat(l, SCARG_P32(uap, fhp), FHANDLE_SIZE_COMPAT, &sb); 282 if (error) 283 return error; 284 285 netbsd32_from___stat30(&sb, &sb32); 286 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32)); 287 return error; 288 } 289 290 /* 291 * Open a file given a file handle. 292 * 293 * Check permissions, allocate an open file structure, 294 * and call the device open routine if any. 295 */ 296 int 297 compat_30_netbsd32_fhopen(struct lwp *l, const struct compat_30_netbsd32_fhopen_args *uap, register_t *retval) 298 { 299 /* { 300 syscallarg(const fhandle_t *) fhp; 301 syscallarg(int) flags; 302 } */ 303 struct compat_30_sys_fhopen_args ua; 304 305 NETBSD32TOP_UAP(fhp, struct compat_30_fhandle); 306 NETBSD32TO64_UAP(flags); 307 return (compat_30_sys_fhopen(l, &ua, retval)); 308 } 309
Indexes created Tue Sep 23 02:09:52 GMT 2025