netbsd32_compat_30.c revision 1.31.16.9
1 /* $NetBSD: netbsd32_compat_30.c,v 1.31.16.9 2018/09/23 08:01:13 pgoyette 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 1.31.16.9 2018/09/23 08:01:13 pgoyette Exp $"); 31 32 #if defined(_KERNEL_OPT) 33 #include <opt_ntp.h> 34 #endif 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/module.h> 39 #include <sys/mount.h> 40 #include <sys/mount.h> 41 #include <sys/socket.h> 42 #include <sys/socketvar.h> 43 #include <sys/stat.h> 44 #include <sys/time.h> 45 #include <sys/ktrace.h> 46 #include <sys/resourcevar.h> 47 #include <sys/vnode.h> 48 #include <sys/file.h> 49 #include <sys/filedesc.h> 50 #include <sys/namei.h> 51 #include <sys/statvfs.h> 52 #include <sys/syscallargs.h> 53 #include <sys/syscallvar.h> 54 #include <sys/proc.h> 55 #include <sys/dirent.h> 56 #include <sys/kauth.h> 57 #include <sys/vfs_syscalls.h> 58 59 #include <compat/netbsd32/netbsd32.h> 60 #include <compat/netbsd32/netbsd32_syscall.h> 61 #include <compat/netbsd32/netbsd32_syscallargs.h> 62 #include <compat/netbsd32/netbsd32_conv.h> 63 #include <compat/sys/mount.h> 64 65 int 66 compat_30_netbsd32_getdents(struct lwp *l, const struct compat_30_netbsd32_getdents_args *uap, register_t *retval) 67 { 68 /* { 69 syscallarg(int) fd; 70 syscallarg(netbsd32_charp) buf; 71 syscallarg(netbsd32_size_t) count; 72 } */ 73 file_t *fp; 74 int error, done; 75 char *buf; 76 netbsd32_size_t count; 77 78 /* Limit the size on any kernel buffers used by VOP_READDIR */ 79 count = uimin(MAXBSIZE, SCARG(uap, count)); 80 81 /* fd_getvnode() will use the descriptor for us */ 82 if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0) 83 return (error); 84 if ((fp->f_flag & FREAD) == 0) { 85 error = EBADF; 86 goto out; 87 } 88 if (count == 0) 89 goto out; 90 91 buf = kmem_alloc(count, KM_SLEEP); 92 error = vn_readdir(fp, buf, UIO_SYSSPACE, count, &done, l, 0, 0); 93 if (error == 0) { 94 *retval = netbsd32_to_dirent12(buf, done); 95 error = copyout(buf, SCARG_P32(uap, buf), *retval); 96 } 97 kmem_free(buf, count); 98 out: 99 fd_putfile(SCARG(uap, fd)); 100 return (error); 101 } 102 103 int 104 compat_30_netbsd32___stat13(struct lwp *l, const struct compat_30_netbsd32___stat13_args *uap, register_t *retval) 105 { 106 /* { 107 syscallarg(const netbsd32_charp) path; 108 syscallarg(netbsd32_stat13p_t) ub; 109 } */ 110 struct netbsd32_stat13 sb32; 111 struct stat sb; 112 int error; 113 const char *path; 114 115 path = SCARG_P32(uap, path); 116 117 error = do_sys_stat(path, FOLLOW, &sb); 118 if (error) 119 return (error); 120 netbsd32_from___stat13(&sb, &sb32); 121 error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32)); 122 return (error); 123 } 124 125 int 126 compat_30_netbsd32___fstat13(struct lwp *l, const struct compat_30_netbsd32___fstat13_args *uap, register_t *retval) 127 { 128 /* { 129 syscallarg(int) fd; 130 syscallarg(netbsd32_stat13p_t) sb; 131 } */ 132 struct netbsd32_stat13 sb32; 133 struct stat ub; 134 int error; 135 136 error = do_sys_fstat(SCARG(uap, fd), &ub); 137 if (error == 0) { 138 netbsd32_from___stat13(&ub, &sb32); 139 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32)); 140 } 141 return (error); 142 } 143 144 int 145 compat_30_netbsd32___lstat13(struct lwp *l, const struct compat_30_netbsd32___lstat13_args *uap, register_t *retval) 146 { 147 /* { 148 syscallarg(const netbsd32_charp) path; 149 syscallarg(netbsd32_stat13p_t) ub; 150 } */ 151 struct netbsd32_stat13 sb32; 152 struct stat sb; 153 int error; 154 const char *path; 155 156 path = SCARG_P32(uap, path); 157 158 error = do_sys_stat(path, NOFOLLOW, &sb); 159 if (error) 160 return (error); 161 netbsd32_from___stat13(&sb, &sb32); 162 error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32)); 163 return (error); 164 } 165 166 int 167 compat_30_netbsd32_fhstat(struct lwp *l, const struct compat_30_netbsd32_fhstat_args *uap, register_t *retval) 168 { 169 /* { 170 syscallarg(const netbsd32_fhandlep_t) fhp; 171 syscallarg(netbsd32_stat13p_t) sb; 172 } */ 173 struct stat sb; 174 struct netbsd32_stat13 sb32; 175 int error; 176 struct compat_30_fhandle fh; 177 struct mount *mp; 178 struct vnode *vp; 179 180 /* 181 * Must be super user 182 */ 183 if ((error = kauth_authorize_system(l->l_cred, 184 KAUTH_SYSTEM_FILEHANDLE, 0, NULL, NULL, NULL))) 185 return (error); 186 187 if ((error = copyin(SCARG_P32(uap, fhp), &fh, sizeof(fh))) != 0) 188 return (error); 189 190 if ((mp = vfs_getvfs(&fh.fh_fsid)) == NULL) 191 return (ESTALE); 192 if (mp->mnt_op->vfs_fhtovp == NULL) 193 return EOPNOTSUPP; 194 if ((error = VFS_FHTOVP(mp, (struct fid*)&fh.fh_fid, &vp))) 195 return (error); 196 error = vn_stat(vp, &sb); 197 vput(vp); 198 if (error) 199 return (error); 200 netbsd32_from___stat13(&sb, &sb32); 201 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb)); 202 return (error); 203 } 204 205 int 206 compat_30_netbsd32_fhstatvfs1(struct lwp *l, const struct compat_30_netbsd32_fhstatvfs1_args *uap, register_t *retval) 207 { 208 /* { 209 syscallarg(const netbsd32_fhandlep_t) fhp; 210 syscallarg(netbsd32_statvfsp_t) buf; 211 syscallarg(int) flags; 212 } */ 213 struct statvfs *sbuf; 214 struct netbsd32_statvfs *s32; 215 int error; 216 217 sbuf = STATVFSBUF_GET(); 218 error = do_fhstatvfs(l, SCARG_P32(uap, fhp), FHANDLE_SIZE_COMPAT, sbuf, 219 SCARG(uap, flags)); 220 221 if (error != 0) { 222 s32 = kmem_alloc(sizeof(*s32), KM_SLEEP); 223 netbsd32_from_statvfs(sbuf, s32); 224 error = copyout(s32, SCARG_P32(uap, buf), sizeof *s32); 225 kmem_free(s32, sizeof(*s32)); 226 } 227 STATVFSBUF_PUT(sbuf); 228 229 return (error); 230 } 231 232 int 233 compat_30_netbsd32_socket(struct lwp *l, const struct compat_30_netbsd32_socket_args *uap, register_t *retval) 234 { 235 /* { 236 syscallarg(int) domain; 237 syscallarg(int) type; 238 syscallarg(int) protocol; 239 } */ 240 struct compat_30_sys_socket_args ua; 241 242 NETBSD32TO64_UAP(domain); 243 NETBSD32TO64_UAP(type); 244 NETBSD32TO64_UAP(protocol); 245 return (compat_30_sys_socket(l, &ua, retval)); 246 } 247 248 int 249 compat_30_netbsd32_getfh(struct lwp *l, const struct compat_30_netbsd32_getfh_args *uap, register_t *retval) 250 { 251 /* { 252 syscallarg(const netbsd32_charp) fname; 253 syscallarg(netbsd32_compat_30_fhandlep_t) fhp; 254 } */ 255 struct compat_30_sys_getfh_args ua; 256 257 NETBSD32TOP_UAP(fname, const char); 258 NETBSD32TOP_UAP(fhp, struct compat_30_fhandle); 259 /* Lucky for us a fhandle_t doesn't change sizes */ 260 return (compat_30_sys_getfh(l, &ua, retval)); 261 } 262 263 264 int 265 compat_30_netbsd32___fhstat30(struct lwp *l, const struct compat_30_netbsd32___fhstat30_args *uap, register_t *retval) 266 { 267 /* { 268 syscallarg(const netbsd32_fhandlep_t) fhp; 269 syscallarg(netbsd32_statp_t) sb; 270 } */ 271 struct stat sb; 272 struct netbsd32_stat50 sb32; 273 int error; 274 275 error = do_fhstat(l, SCARG_P32(uap, fhp), FHANDLE_SIZE_COMPAT, &sb); 276 if (error) 277 return error; 278 279 netbsd32_from___stat50(&sb, &sb32); 280 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32)); 281 return error; 282 } 283 284 /* 285 * Open a file given a file handle. 286 * 287 * Check permissions, allocate an open file structure, 288 * and call the device open routine if any. 289 */ 290 int 291 compat_30_netbsd32_fhopen(struct lwp *l, const struct compat_30_netbsd32_fhopen_args *uap, register_t *retval) 292 { 293 /* { 294 syscallarg(const fhandle_t *) fhp; 295 syscallarg(int) flags; 296 } */ 297 struct compat_30_sys_fhopen_args ua; 298 299 NETBSD32TOP_UAP(fhp, struct compat_30_fhandle); 300 NETBSD32TO64_UAP(flags); 301 return (compat_30_sys_fhopen(l, &ua, retval)); 302 } 303 304 int 305 compat_30_netbsd32_ntp_gettime(struct lwp *l, const struct compat_30_netbsd32_ntp_gettime_args *uap, register_t *retval) 306 { 307 #ifdef NTP 308 /* { 309 syscallarg(netbsd32_ntptimevalp_t) ntvp; 310 } */ 311 struct netbsd32_ntptimeval30 ntv32; 312 struct ntptimeval ntv; 313 int error = 0; 314 315 if (SCARG_P32(uap, ntvp)) { 316 ntp_gettime(&ntv); 317 318 ntv32.time.tv_sec = ntv.time.tv_sec; 319 ntv32.time.tv_usec = ntv.time.tv_nsec / 1000; 320 ntv32.maxerror = (netbsd32_long)ntv.maxerror; 321 ntv32.esterror = (netbsd32_long)ntv.esterror; 322 error = copyout(&ntv32, SCARG_P32(uap, ntvp), sizeof(ntv32)); 323 } 324 if (!error) { 325 *retval = ntp_timestatus(); 326 } 327 328 return (error); 329 #else 330 331 return ENOSYS; 332 #endif 333 } 334 335 static struct syscall_package compat_netbsd32_30_syscalls[] = { 336 { NETBSD32_SYS_compat_30_netbsd32_getdents, 0, 337 (sy_call_t *)compat_30_netbsd32_getdents }, 338 { NETBSD32_SYS_compat_30_netbsd32___stat13, 0, 339 (sy_call_t *)compat_30_netbsd32___stat13 }, 340 { NETBSD32_SYS_compat_30_netbsd32___fstat13, 0, 341 (sy_call_t *)compat_30_netbsd32___fstat13 }, 342 { NETBSD32_SYS_compat_30_netbsd32___lstat13, 0, 343 (sy_call_t *)compat_30_netbsd32___lstat13 }, 344 { NETBSD32_SYS_compat_30_netbsd32_fhstat, 0, 345 (sy_call_t *)compat_30_netbsd32_fhstat }, 346 { NETBSD32_SYS_compat_30_netbsd32_fhstatvfs1, 0, 347 (sy_call_t *)compat_30_netbsd32_fhstatvfs1 }, 348 { NETBSD32_SYS_compat_30_netbsd32_socket, 0, 349 (sy_call_t *)compat_30_netbsd32_socket }, 350 { NETBSD32_SYS_compat_30_netbsd32_getfh, 0, 351 (sy_call_t *)compat_30_netbsd32_getfh }, 352 { NETBSD32_SYS_compat_30_netbsd32___fhstat30, 0, 353 (sy_call_t *)compat_30_netbsd32___fhstat30 }, 354 { NETBSD32_SYS_compat_30_netbsd32_fhopen, 0, 355 (sy_call_t *)compat_30_netbsd32_fhopen }, 356 { NETBSD32_SYS_compat_30_netbsd32_ntp_gettime, 0, 357 (sy_call_t *)compat_30_netbsd32_ntp_gettime }, 358 { 0, 0, NULL } 359 }; 360 361 MODULE(MODULE_CLASS_EXEC, compat_netbsd32_30, "compat_netbsd32,compat_30"); 362 363 static int 364 compat_netbsd32_30_modcmd(modcmd_t cmd, void *arg) 365 { 366 367 switch (cmd) { 368 case MODULE_CMD_INIT: 369 return syscall_establish(&emul_netbsd32, 370 compat_netbsd32_30_syscalls); 371 372 case MODULE_CMD_FINI: 373 return syscall_disestablish(&emul_netbsd32, 374 compat_netbsd32_30_syscalls); 375 376 default: 377 return ENOTTY; 378 } 379 } 380
Indexes created Thu Oct 02 14:10:14 GMT 2025