netbsd32_compat_30.c revision 1.26
1 /* $NetBSD: netbsd32_compat_30.c,v 1.26 2008/06/24 11:18:15 ad 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 1.26 2008/06/24 11:18:15 ad Exp $"); 31 32 #include "opt_nfsserver.h" 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/malloc.h> 37 #include <sys/mount.h> 38 #include <sys/socket.h> 39 #include <sys/socketvar.h> 40 #include <sys/stat.h> 41 #include <sys/time.h> 42 #include <sys/ktrace.h> 43 #include <sys/resourcevar.h> 44 #include <sys/vnode.h> 45 #include <sys/file.h> 46 #include <sys/filedesc.h> 47 #include <sys/namei.h> 48 #include <sys/statvfs.h> 49 #include <sys/syscallargs.h> 50 #include <sys/proc.h> 51 #include <sys/dirent.h> 52 #include <sys/kauth.h> 53 #include <sys/vfs_syscalls.h> 54 55 #include <compat/netbsd32/netbsd32.h> 56 #include <compat/netbsd32/netbsd32_syscallargs.h> 57 #include <compat/netbsd32/netbsd32_conv.h> 58 #include <compat/sys/mount.h> 59 60 61 int 62 compat_30_netbsd32_getdents(struct lwp *l, const struct compat_30_netbsd32_getdents_args *uap, register_t *retval) 63 { 64 /* { 65 syscallarg(int) fd; 66 syscallarg(netbsd32_charp) buf; 67 syscallarg(netbsd32_size_t) count; 68 } */ 69 file_t *fp; 70 int error, done; 71 char *buf; 72 netbsd32_size_t count; 73 74 /* Limit the size on any kernel buffers used by VOP_READDIR */ 75 count = min(MAXBSIZE, SCARG(uap, count)); 76 77 /* fd_getvnode() will use the descriptor for us */ 78 if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0) 79 return (error); 80 if ((fp->f_flag & FREAD) == 0) { 81 error = EBADF; 82 goto out; 83 } 84 buf = malloc(count, M_TEMP, M_WAITOK); 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 free(buf, M_TEMP); 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 int fd = SCARG(uap, fd); 126 file_t *fp; 127 struct netbsd32_stat13 sb32; 128 struct stat ub; 129 int error = 0; 130 131 if ((fp = fd_getfile(fd)) == NULL) 132 return (EBADF); 133 error = (*fp->f_ops->fo_stat)(fp, &ub); 134 fd_putfile(fd); 135 136 if (error == 0) { 137 netbsd32_from___stat13(&ub, &sb32); 138 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32)); 139 } 140 return (error); 141 } 142 143 int 144 compat_30_netbsd32___lstat13(struct lwp *l, const struct compat_30_netbsd32___lstat13_args *uap, register_t *retval) 145 { 146 /* { 147 syscallarg(const netbsd32_charp) path; 148 syscallarg(netbsd32_stat13p_t) ub; 149 } */ 150 struct netbsd32_stat13 sb32; 151 struct stat sb; 152 int error; 153 const char *path; 154 155 path = SCARG_P32(uap, path); 156 157 error = do_sys_stat(path, NOFOLLOW, &sb); 158 if (error) 159 return (error); 160 netbsd32_from___stat13(&sb, &sb32); 161 error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32)); 162 return (error); 163 } 164 165 int 166 compat_30_netbsd32_fhstat(struct lwp *l, const struct compat_30_netbsd32_fhstat_args *uap, register_t *retval) 167 { 168 /* { 169 syscallarg(const netbsd32_fhandlep_t) fhp; 170 syscallarg(netbsd32_stat13p_t) sb; 171 } */ 172 struct stat sb; 173 struct netbsd32_stat13 sb32; 174 int error; 175 struct compat_30_fhandle fh; 176 struct mount *mp; 177 struct vnode *vp; 178 179 /* 180 * Must be super user 181 */ 182 if ((error = kauth_authorize_system(l->l_cred, 183 KAUTH_SYSTEM_FILEHANDLE, 0, NULL, NULL, NULL))) 184 return (error); 185 186 if ((error = copyin(SCARG_P32(uap, fhp), &fh, sizeof(fh))) != 0) 187 return (error); 188 189 if ((mp = vfs_getvfs(&fh.fh_fsid)) == NULL) 190 return (ESTALE); 191 if (mp->mnt_op->vfs_fhtovp == NULL) 192 return EOPNOTSUPP; 193 if ((error = VFS_FHTOVP(mp, (struct fid*)&fh.fh_fid, &vp))) 194 return (error); 195 error = vn_stat(vp, &sb); 196 vput(vp); 197 if (error) 198 return (error); 199 netbsd32_from___stat13(&sb, &sb32); 200 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb)); 201 return (error); 202 } 203 204 int 205 compat_30_netbsd32_fhstatvfs1(struct lwp *l, const struct compat_30_netbsd32_fhstatvfs1_args *uap, register_t *retval) 206 { 207 /* { 208 syscallarg(const netbsd32_fhandlep_t) fhp; 209 syscallarg(netbsd32_statvfsp_t) buf; 210 syscallarg(int) flags; 211 } */ 212 struct statvfs *sbuf; 213 struct netbsd32_statvfs *s32; 214 int error; 215 216 sbuf = STATVFSBUF_GET(); 217 error = do_fhstatvfs(l, SCARG_P32(uap, fhp), FHANDLE_SIZE_COMPAT, sbuf, 218 SCARG(uap, flags)); 219 220 if (error != 0) { 221 s32 = malloc(sizeof *s32, M_TEMP, M_WAITOK); 222 netbsd32_from_statvfs(sbuf, s32); 223 error = copyout(s32, SCARG_P32(uap, buf), sizeof *s32); 224 free(s32, M_TEMP); 225 } 226 STATVFSBUF_PUT(sbuf); 227 228 return (error); 229 } 230 231 int 232 compat_30_netbsd32_socket(struct lwp *l, const struct compat_30_netbsd32_socket_args *uap, register_t *retval) 233 { 234 /* { 235 syscallarg(int) domain; 236 syscallarg(int) type; 237 syscallarg(int) protocol; 238 } */ 239 struct compat_30_sys_socket_args ua; 240 241 NETBSD32TO64_UAP(domain); 242 NETBSD32TO64_UAP(type); 243 NETBSD32TO64_UAP(protocol); 244 return (compat_30_sys_socket(l, &ua, retval)); 245 } 246 247 int 248 compat_30_netbsd32_getfh(struct lwp *l, const struct compat_30_netbsd32_getfh_args *uap, register_t *retval) 249 { 250 /* { 251 syscallarg(const netbsd32_charp) fname; 252 syscallarg(netbsd32_compat_30_fhandlep_t) fhp; 253 } */ 254 struct compat_30_sys_getfh_args ua; 255 256 NETBSD32TOP_UAP(fname, const char); 257 NETBSD32TOP_UAP(fhp, struct compat_30_fhandle); 258 /* Lucky for us a fhandle_t doesn't change sizes */ 259 return (compat_30_sys_getfh(l, &ua, retval)); 260 } 261 262 263 int 264 compat_30_netbsd32_sys___fhstat30(struct lwp *l, const struct compat_30_netbsd32_sys___fhstat30_args *uap, register_t *retval) 265 { 266 /* { 267 syscallarg(const netbsd32_fhandlep_t) fhp; 268 syscallarg(netbsd32_statp_t) sb; 269 } */ 270 struct stat sb; 271 struct netbsd32_stat sb32; 272 int error; 273 274 error = do_fhstat(l, SCARG_P32(uap, fhp), FHANDLE_SIZE_COMPAT, &sb); 275 if (error) 276 return error; 277 278 netbsd32_from___stat30(&sb, &sb32); 279 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32)); 280 return error; 281 } 282 283 /* 284 * Open a file given a file handle. 285 * 286 * Check permissions, allocate an open file structure, 287 * and call the device open routine if any. 288 */ 289 int 290 compat_30_netbsd32_fhopen(struct lwp *l, const struct compat_30_netbsd32_fhopen_args *uap, register_t *retval) 291 { 292 /* { 293 syscallarg(const fhandle_t *) fhp; 294 syscallarg(int) flags; 295 } */ 296 struct compat_30_sys_fhopen_args ua; 297 298 NETBSD32TOP_UAP(fhp, struct compat_30_fhandle); 299 NETBSD32TO64_UAP(flags); 300 return (compat_30_sys_fhopen(l, &ua, retval)); 301 } 302
Indexes created Mon Sep 22 05:09:51 GMT 2025