netbsd32_compat_30.c revision 1.29.4.1
1 /* $NetBSD: netbsd32_compat_30.c,v 1.29.4.1 2010/04/30 14:42:59 uebayasi 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 1.29.4.1 2010/04/30 14:42:59 uebayasi 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 buf = kmem_alloc(count, KM_SLEEP); 82 error = vn_readdir(fp, buf, UIO_SYSSPACE, count, &done, l, 0, 0); 83 if (error == 0) { 84 *retval = netbsd32_to_dirent12(buf, done); 85 error = copyout(buf, SCARG_P32(uap, buf), *retval); 86 } 87 kmem_free(buf, count); 88 out: 89 fd_putfile(SCARG(uap, fd)); 90 return (error); 91 } 92 93 int 94 compat_30_netbsd32___stat13(struct lwp *l, const struct compat_30_netbsd32___stat13_args *uap, register_t *retval) 95 { 96 /* { 97 syscallarg(const netbsd32_charp) path; 98 syscallarg(netbsd32_stat13p_t) ub; 99 } */ 100 struct netbsd32_stat13 sb32; 101 struct stat sb; 102 int error; 103 const char *path; 104 105 path = SCARG_P32(uap, path); 106 107 error = do_sys_stat(path, FOLLOW, &sb); 108 if (error) 109 return (error); 110 netbsd32_from___stat13(&sb, &sb32); 111 error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32)); 112 return (error); 113 } 114 115 int 116 compat_30_netbsd32___fstat13(struct lwp *l, const struct compat_30_netbsd32___fstat13_args *uap, register_t *retval) 117 { 118 /* { 119 syscallarg(int) fd; 120 syscallarg(netbsd32_stat13p_t) sb; 121 } */ 122 struct netbsd32_stat13 sb32; 123 struct stat ub; 124 int error; 125 126 error = do_sys_fstat(SCARG(uap, fd), &ub); 127 if (error == 0) { 128 netbsd32_from___stat13(&ub, &sb32); 129 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32)); 130 } 131 return (error); 132 } 133 134 int 135 compat_30_netbsd32___lstat13(struct lwp *l, const struct compat_30_netbsd32___lstat13_args *uap, register_t *retval) 136 { 137 /* { 138 syscallarg(const netbsd32_charp) path; 139 syscallarg(netbsd32_stat13p_t) ub; 140 } */ 141 struct netbsd32_stat13 sb32; 142 struct stat sb; 143 int error; 144 const char *path; 145 146 path = SCARG_P32(uap, path); 147 148 error = do_sys_stat(path, NOFOLLOW, &sb); 149 if (error) 150 return (error); 151 netbsd32_from___stat13(&sb, &sb32); 152 error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32)); 153 return (error); 154 } 155 156 int 157 compat_30_netbsd32_fhstat(struct lwp *l, const struct compat_30_netbsd32_fhstat_args *uap, register_t *retval) 158 { 159 /* { 160 syscallarg(const netbsd32_fhandlep_t) fhp; 161 syscallarg(netbsd32_stat13p_t) sb; 162 } */ 163 struct stat sb; 164 struct netbsd32_stat13 sb32; 165 int error; 166 struct compat_30_fhandle fh; 167 struct mount *mp; 168 struct vnode *vp; 169 170 /* 171 * Must be super user 172 */ 173 if ((error = kauth_authorize_system(l->l_cred, 174 KAUTH_SYSTEM_FILEHANDLE, 0, NULL, NULL, NULL))) 175 return (error); 176 177 if ((error = copyin(SCARG_P32(uap, fhp), &fh, sizeof(fh))) != 0) 178 return (error); 179 180 if ((mp = vfs_getvfs(&fh.fh_fsid)) == NULL) 181 return (ESTALE); 182 if (mp->mnt_op->vfs_fhtovp == NULL) 183 return EOPNOTSUPP; 184 if ((error = VFS_FHTOVP(mp, (struct fid*)&fh.fh_fid, &vp))) 185 return (error); 186 error = vn_stat(vp, &sb); 187 vput(vp); 188 if (error) 189 return (error); 190 netbsd32_from___stat13(&sb, &sb32); 191 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb)); 192 return (error); 193 } 194 195 int 196 compat_30_netbsd32_fhstatvfs1(struct lwp *l, const struct compat_30_netbsd32_fhstatvfs1_args *uap, register_t *retval) 197 { 198 /* { 199 syscallarg(const netbsd32_fhandlep_t) fhp; 200 syscallarg(netbsd32_statvfsp_t) buf; 201 syscallarg(int) flags; 202 } */ 203 struct statvfs *sbuf; 204 struct netbsd32_statvfs *s32; 205 int error; 206 207 sbuf = STATVFSBUF_GET(); 208 error = do_fhstatvfs(l, SCARG_P32(uap, fhp), FHANDLE_SIZE_COMPAT, sbuf, 209 SCARG(uap, flags)); 210 211 if (error != 0) { 212 s32 = kmem_alloc(sizeof(*s32), KM_SLEEP); 213 netbsd32_from_statvfs(sbuf, s32); 214 error = copyout(s32, SCARG_P32(uap, buf), sizeof *s32); 215 kmem_free(s32, sizeof(*s32)); 216 } 217 STATVFSBUF_PUT(sbuf); 218 219 return (error); 220 } 221 222 int 223 compat_30_netbsd32_socket(struct lwp *l, const struct compat_30_netbsd32_socket_args *uap, register_t *retval) 224 { 225 /* { 226 syscallarg(int) domain; 227 syscallarg(int) type; 228 syscallarg(int) protocol; 229 } */ 230 struct compat_30_sys_socket_args ua; 231 232 NETBSD32TO64_UAP(domain); 233 NETBSD32TO64_UAP(type); 234 NETBSD32TO64_UAP(protocol); 235 return (compat_30_sys_socket(l, &ua, retval)); 236 } 237 238 int 239 compat_30_netbsd32_getfh(struct lwp *l, const struct compat_30_netbsd32_getfh_args *uap, register_t *retval) 240 { 241 /* { 242 syscallarg(const netbsd32_charp) fname; 243 syscallarg(netbsd32_compat_30_fhandlep_t) fhp; 244 } */ 245 struct compat_30_sys_getfh_args ua; 246 247 NETBSD32TOP_UAP(fname, const char); 248 NETBSD32TOP_UAP(fhp, struct compat_30_fhandle); 249 /* Lucky for us a fhandle_t doesn't change sizes */ 250 return (compat_30_sys_getfh(l, &ua, retval)); 251 } 252 253 254 int 255 compat_30_netbsd32___fhstat30(struct lwp *l, const struct compat_30_netbsd32___fhstat30_args *uap, register_t *retval) 256 { 257 /* { 258 syscallarg(const netbsd32_fhandlep_t) fhp; 259 syscallarg(netbsd32_statp_t) sb; 260 } */ 261 struct stat sb; 262 struct netbsd32_stat50 sb32; 263 int error; 264 265 error = do_fhstat(l, SCARG_P32(uap, fhp), FHANDLE_SIZE_COMPAT, &sb); 266 if (error) 267 return error; 268 269 netbsd32_from___stat50(&sb, &sb32); 270 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32)); 271 return error; 272 } 273 274 /* 275 * Open a file given a file handle. 276 * 277 * Check permissions, allocate an open file structure, 278 * and call the device open routine if any. 279 */ 280 int 281 compat_30_netbsd32_fhopen(struct lwp *l, const struct compat_30_netbsd32_fhopen_args *uap, register_t *retval) 282 { 283 /* { 284 syscallarg(const fhandle_t *) fhp; 285 syscallarg(int) flags; 286 } */ 287 struct compat_30_sys_fhopen_args ua; 288 289 NETBSD32TOP_UAP(fhp, struct compat_30_fhandle); 290 NETBSD32TO64_UAP(flags); 291 return (compat_30_sys_fhopen(l, &ua, retval)); 292 } 293
Indexes created Thu Oct 02 14:10:14 GMT 2025