netbsd32_compat_30.c revision 1.31
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
Indexes created Wed Sep 24 05:09:52 GMT 2025