linux32_stat.c revision 1.1.20.1
1 /* $NetBSD: linux32_stat.c,v 1.1.20.1 2007/01/30 13:51:34 ad Exp $ */ 2 3 /*- 4 * Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Emmanuel Dreyfus 17 * 4. The name of the author may not be used to endorse or promote 18 * products derived from this software without specific prior written 19 * permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS'' 22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 23 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 36 __KERNEL_RCSID(0, "$NetBSD: linux32_stat.c,v 1.1.20.1 2007/01/30 13:51:34 ad Exp $"); 37 38 #include <sys/types.h> 39 #include <sys/param.h> 40 #include <sys/fstypes.h> 41 #include <sys/signal.h> 42 #include <sys/dirent.h> 43 #include <sys/kernel.h> 44 #include <sys/fcntl.h> 45 #include <sys/select.h> 46 #include <sys/proc.h> 47 #include <sys/ucred.h> 48 #include <sys/swap.h> 49 50 #include <machine/types.h> 51 52 #include <sys/syscallargs.h> 53 54 #include <compat/netbsd32/netbsd32.h> 55 #include <compat/netbsd32/netbsd32_conv.h> 56 #include <compat/netbsd32/netbsd32_syscallargs.h> 57 58 #include <compat/linux/common/linux_types.h> 59 #include <compat/linux/common/linux_signal.h> 60 #include <compat/linux/common/linux_machdep.h> 61 #include <compat/linux/common/linux_misc.h> 62 #include <compat/linux/common/linux_oldolduname.h> 63 #include <compat/linux/linux_syscallargs.h> 64 65 #include <compat/linux32/common/linux32_types.h> 66 #include <compat/linux32/common/linux32_signal.h> 67 #include <compat/linux32/common/linux32_machdep.h> 68 #include <compat/linux32/common/linux32_sysctl.h> 69 #include <compat/linux32/common/linux32_socketcall.h> 70 #include <compat/linux32/linux32_syscallargs.h> 71 72 static inline void linux32_from_stat(struct stat *, struct linux32_stat64 *); 73 74 #define linux_fakedev(x,y) (x) 75 static inline void 76 linux32_from_stat(st, st32) 77 struct stat *st; 78 struct linux32_stat64 *st32; 79 { 80 bzero(st32, sizeof(*st32)); 81 st32->lst_dev = linux_fakedev(st->st_dev, 0); 82 st32->__lst_ino = st->st_ino; 83 st32->lst_mode = st->st_mode; 84 if (st->st_nlink >= (1 << 15)) 85 st32->lst_nlink = (1 << 15) - 1; 86 else 87 st32->lst_nlink = st->st_nlink; 88 st32->lst_uid = st->st_uid; 89 st32->lst_gid = st->st_gid; 90 st32->lst_rdev = linux_fakedev(st->st_rdev, 0); 91 st32->lst_size = st->st_size; 92 st32->lst_blksize = st->st_blksize; 93 st32->lst_blocks = st->st_blocks; 94 st32->lst_atime = st->st_atime; 95 st32->lst_mtime = st->st_mtime; 96 st32->lst_ctime = st->st_ctime; 97 #ifdef LINUX32_STAT64_HAS_NSEC 98 st32->lst_atime_nsec = st->st_atimensec; 99 st32->lst_mtime_nsec = st->st_mtimensec; 100 st32->lst_ctime_nsec = st->st_ctimensec; 101 #endif 102 #ifdef LINUX32_STAT64_HAS_BROKEN_ST_INO 103 st32->lst_ino = st->st_ino; 104 #endif 105 106 return; 107 } 108 109 int 110 linux32_sys_stat64(l, v, retval) 111 struct lwp *l; 112 void *v; 113 register_t *retval; 114 { 115 struct linux32_sys_stat64_args /* { 116 syscallarg(netbsd32_charp) path; 117 syscallarg(linux32_statp) sp; 118 } */ *uap = v; 119 struct sys___stat30_args ua; 120 caddr_t sg = stackgap_init(l->l_proc, 0); 121 int error; 122 struct stat st; 123 struct linux32_stat64 st32; 124 struct stat *stp; 125 struct linux32_stat64 *st32p; 126 127 NETBSD32TOP_UAP(path, const char); 128 129 CHECK_ALT_EXIST(l, &sg, SCARG(&ua, path)); 130 131 stp = stackgap_alloc(l->l_proc, &sg, sizeof(*stp)); 132 SCARG(&ua, ub) = stp; 133 134 if ((error = sys___stat30(l, &ua, retval)) != 0) 135 return error; 136 137 if ((error = copyin(stp, &st, sizeof(st))) != 0) 138 return error; 139 140 linux32_from_stat(&st, &st32); 141 142 st32p = (struct linux32_stat64 *)(long)SCARG(uap, sp); 143 144 if ((error = copyout(&st32, st32p, sizeof(*st32p))) != 0) 145 return error; 146 147 return 0; 148 } 149 150 int 151 linux32_sys_lstat64(l, v, retval) 152 struct lwp *l; 153 void *v; 154 register_t *retval; 155 { 156 struct linux32_sys_lstat64_args /* { 157 syscallarg(netbsd32_charp) path; 158 syscallarg(linux32_stat64p) sp; 159 } */ *uap = v; 160 struct sys___lstat30_args ua; 161 caddr_t sg = stackgap_init(l->l_proc, 0); 162 int error; 163 struct stat st; 164 struct linux32_stat64 st32; 165 struct stat *stp; 166 struct linux32_stat64 *st32p; 167 168 NETBSD32TOP_UAP(path, const char); 169 170 CHECK_ALT_EXIST(l, &sg, SCARG(&ua, path)); 171 172 stp = stackgap_alloc(l->l_proc, &sg, sizeof(*stp)); 173 SCARG(&ua, ub) = stp; 174 175 if ((error = sys___lstat30(l, &ua, retval)) != 0) 176 return error; 177 178 if ((error = copyin(stp, &st, sizeof(st))) != 0) 179 return error; 180 181 linux32_from_stat(&st, &st32); 182 183 st32p = (struct linux32_stat64 *)(long)SCARG(uap, sp); 184 185 if ((error = copyout(&st32, st32p, sizeof(*st32p))) != 0) 186 return error; 187 188 return 0; 189 } 190 191 int 192 linux32_sys_fstat64(l, v, retval) 193 struct lwp *l; 194 void *v; 195 register_t *retval; 196 { 197 struct linux32_sys_fstat64_args /* { 198 syscallarg(int) fd; 199 syscallarg(linux32_stat64p) sp; 200 } */ *uap = v; 201 struct sys___fstat30_args ua; 202 caddr_t sg = stackgap_init(l->l_proc, 0); 203 int error; 204 struct stat st; 205 struct linux32_stat64 st32; 206 struct stat *stp; 207 struct linux32_stat64 *st32p; 208 209 NETBSD32TO64_UAP(fd); 210 211 stp = stackgap_alloc(l->l_proc, &sg, sizeof(*stp)); 212 SCARG(&ua, sb) = stp; 213 214 if ((error = sys___fstat30(l, &ua, retval)) != 0) 215 return error; 216 217 if ((error = copyin(stp, &st, sizeof(st))) != 0) 218 return error; 219 220 linux32_from_stat(&st, &st32); 221 222 st32p = (struct linux32_stat64 *)(long)SCARG(uap, sp); 223 224 if ((error = copyout(&st32, st32p, sizeof(*st32p))) != 0) 225 return error; 226 227 return 0; 228 } 229
Indexes created Sun Oct 12 22:09:51 GMT 2025