1 /* $NetBSD: netbsd32_compat_30.c,v 1.29 2009/01/26 13:00:04 njoly 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 1.29 2009/01/26 13:00:04 njoly Exp $"); 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/malloc.h> 35 #include <sys/mount.h> 36 #include <sys/socket.h> 37 #include <sys/socketvar.h> 38 #include <sys/stat.h> 39 #include <sys/time.h> 40 #include <sys/ktrace.h> 41 #include <sys/resourcevar.h> 42 #include <sys/vnode.h> 43 #include <sys/file.h> 44 #include <sys/filedesc.h> 45 #include <sys/namei.h> 46 #include <sys/statvfs.h> 47 #include <sys/syscallargs.h> 48 #include <sys/proc.h> 49 #include <sys/dirent.h> 50 #include <sys/kauth.h> 51 #include <sys/vfs_syscalls.h> 52 53 #include <compat/netbsd32/netbsd32.h> 54 #include <compat/netbsd32/netbsd32_syscallargs.h> 55 #include <compat/netbsd32/netbsd32_conv.h> 56 #include <compat/sys/mount.h> 57 58 59 int 60 compat_30_netbsd32_getdents(struct lwp *l, const struct compat_30_netbsd32_getdents_args *uap, register_t *retval) 61 { 62 /* { 63 syscallarg(int) fd; 64 syscallarg(netbsd32_charp) buf; 65 syscallarg(netbsd32_size_t) count; 66 } */ 67 file_t *fp; 68 int error, done; 69 char *buf; 70 netbsd32_size_t count; 71 72 /* Limit the size on any kernel buffers used by VOP_READDIR */ 73 count = min(MAXBSIZE, SCARG(uap, count)); 74 75 /* fd_getvnode() will use the descriptor for us */ 76 if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0) 77 return (error); 78 if ((fp->f_flag & FREAD) == 0) { 79 error = EBADF; 80 goto out; 81 } 82 buf = malloc(count, M_TEMP, M_WAITOK); 83 error = vn_readdir(fp, buf, UIO_SYSSPACE, count, &done, l, 0, 0); 84 if (error == 0) { 85 *retval = netbsd32_to_dirent12(buf, done); 86 error = copyout(buf, SCARG_P32(uap, buf), *retval); 87 } 88 free(buf, M_TEMP); 89 out: 90 fd_putfile(SCARG(uap, fd)); 91 return (error); 92 } 93 94 int 95 compat_30_netbsd32___stat13(struct lwp *l, const struct compat_30_netbsd32___stat13_args *uap, register_t *retval) 96 { 97 /* { 98 syscallarg(const netbsd32_charp) path; 99 syscallarg(netbsd32_stat13p_t) ub; 100 } */ 101 struct netbsd32_stat13 sb32; 102 struct stat sb; 103 int error; 104 const char *path; 105 106 path = SCARG_P32(uap, path); 107 108 error = do_sys_stat(path, FOLLOW, &sb); 109 if (error) 110 return (error); 111 netbsd32_from___stat13(&sb, &sb32); 112 error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32)); 113 return (error); 114 } 115 116 int 117 compat_30_netbsd32___fstat13(struct lwp *l, const struct compat_30_netbsd32___fstat13_args *uap, register_t *retval) 118 { 119 /* { 120 syscallarg(int) fd; 121 syscallarg(netbsd32_stat13p_t) sb; 122 } */ 123 struct netbsd32_stat13 sb32; 124 struct stat ub; 125 int error; 126 127 error = do_sys_fstat(SCARG(uap, fd), &ub); 128 if (error == 0) { 129 netbsd32_from___stat13(&ub, &sb32); 130 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32)); 131 } 132 return (error); 133 } 134 135 int 136 compat_30_netbsd32___lstat13(struct lwp *l, const struct compat_30_netbsd32___lstat13_args *uap, register_t *retval) 137 { 138 /* { 139 syscallarg(const netbsd32_charp) path; 140 syscallarg(netbsd32_stat13p_t) ub; 141 } */ 142 struct netbsd32_stat13 sb32; 143 struct stat sb; 144 int error; 145 const char *path; 146 147 path = SCARG_P32(uap, path); 148 149 error = do_sys_stat(path, NOFOLLOW, &sb); 150 if (error) 151 return (error); 152 netbsd32_from___stat13(&sb, &sb32); 153 error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32)); 154 return (error); 155 } 156 157 int 158 compat_30_netbsd32_fhstat(struct lwp *l, const struct compat_30_netbsd32_fhstat_args *uap, register_t *retval) 159 { 160 /* { 161 syscallarg(const netbsd32_fhandlep_t) fhp; 162 syscallarg(netbsd32_stat13p_t) sb; 163 } */ 164 struct stat sb; 165 struct netbsd32_stat13 sb32; 166 int error; 167 struct compat_30_fhandle fh; 168 struct mount *mp; 169 struct vnode *vp; 170 171 /* 172 * Must be super user 173 */ 174 if ((error = kauth_authorize_system(l->l_cred, 175 KAUTH_SYSTEM_FILEHANDLE, 0, NULL, NULL, NULL))) 176 return (error); 177 178 if ((error = copyin(SCARG_P32(uap, fhp), &fh, sizeof(fh))) != 0) 179 return (error); 180 181 if ((mp = vfs_getvfs(&fh.fh_fsid)) == NULL) 182 return (ESTALE); 183 if (mp->mnt_op->vfs_fhtovp == NULL) 184 return EOPNOTSUPP; 185 if ((error = VFS_FHTOVP(mp, (struct fid*)&fh.fh_fid, &vp))) 186 return (error); 187 error = vn_stat(vp, &sb); 188 vput(vp); 189 if (error) 190 return (error); 191 netbsd32_from___stat13(&sb, &sb32); 192 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb)); 193 return (error); 194 } 195 196 int 197 compat_30_netbsd32_fhstatvfs1(struct lwp *l, const struct compat_30_netbsd32_fhstatvfs1_args *uap, register_t *retval) 198 { 199 /* { 200 syscallarg(const netbsd32_fhandlep_t) fhp; 201 syscallarg(netbsd32_statvfsp_t) buf; 202 syscallarg(int) flags; 203 } */ 204 struct statvfs *sbuf; 205 struct netbsd32_statvfs *s32; 206 int error; 207 208 sbuf = STATVFSBUF_GET(); 209 error = do_fhstatvfs(l, SCARG_P32(uap, fhp), FHANDLE_SIZE_COMPAT, sbuf, 210 SCARG(uap, flags)); 211 212 if (error != 0) { 213 s32 = malloc(sizeof *s32, M_TEMP, M_WAITOK); 214 netbsd32_from_statvfs(sbuf, s32); 215 error = copyout(s32, SCARG_P32(uap, buf), sizeof *s32); 216 free(s32, M_TEMP); 217 } 218 STATVFSBUF_PUT(sbuf); 219 220 return (error); 221 } 222 223 int 224 compat_30_netbsd32_socket(struct lwp *l, const struct compat_30_netbsd32_socket_args *uap, register_t *retval) 225 { 226 /* { 227 syscallarg(int) domain; 228 syscallarg(int) type; 229 syscallarg(int) protocol; 230 } */ 231 struct compat_30_sys_socket_args ua; 232 233 NETBSD32TO64_UAP(domain); 234 NETBSD32TO64_UAP(type); 235 NETBSD32TO64_UAP(protocol); 236 return (compat_30_sys_socket(l, &ua, retval)); 237 } 238 239 int 240 compat_30_netbsd32_getfh(struct lwp *l, const struct compat_30_netbsd32_getfh_args *uap, register_t *retval) 241 { 242 /* { 243 syscallarg(const netbsd32_charp) fname; 244 syscallarg(netbsd32_compat_30_fhandlep_t) fhp; 245 } */ 246 struct compat_30_sys_getfh_args ua; 247 248 NETBSD32TOP_UAP(fname, const char); 249 NETBSD32TOP_UAP(fhp, struct compat_30_fhandle); 250 /* Lucky for us a fhandle_t doesn't change sizes */ 251 return (compat_30_sys_getfh(l, &ua, retval)); 252 } 253 254 255 int 256 compat_30_netbsd32___fhstat30(struct lwp *l, const struct compat_30_netbsd32___fhstat30_args *uap, register_t *retval) 257 { 258 /* { 259 syscallarg(const netbsd32_fhandlep_t) fhp; 260 syscallarg(netbsd32_statp_t) sb; 261 } */ 262 struct stat sb; 263 struct netbsd32_stat50 sb32; 264 int error; 265 266 error = do_fhstat(l, SCARG_P32(uap, fhp), FHANDLE_SIZE_COMPAT, &sb); 267 if (error) 268 return error; 269 270 netbsd32_from___stat50(&sb, &sb32); 271 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32)); 272 return error; 273 } 274 275 /* 276 * Open a file given a file handle. 277 * 278 * Check permissions, allocate an open file structure, 279 * and call the device open routine if any. 280 */ 281 int 282 compat_30_netbsd32_fhopen(struct lwp *l, const struct compat_30_netbsd32_fhopen_args *uap, register_t *retval) 283 { 284 /* { 285 syscallarg(const fhandle_t *) fhp; 286 syscallarg(int) flags; 287 } */ 288 struct compat_30_sys_fhopen_args ua; 289 290 NETBSD32TOP_UAP(fhp, struct compat_30_fhandle); 291 NETBSD32TO64_UAP(flags); 292 return (compat_30_sys_fhopen(l, &ua, retval)); 293 } 294