1 /* $NetBSD: netbsd32_compat_12.c,v 1.35 2021/01/19 03:20:13 simonb 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_12.c,v 1.35 2021/01/19 03:20:13 simonb Exp $"); 31 32 #if defined(_KERNEL_OPT) 33 #include "opt_compat_netbsd.h" 34 #endif 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/module.h> 39 #include <sys/filedesc.h> 40 #include <sys/mount.h> 41 #include <sys/mman.h> 42 #include <sys/namei.h> 43 #include <sys/proc.h> 44 #include <sys/stat.h> 45 #include <sys/swap.h> 46 #include <sys/vfs_syscalls.h> 47 48 #include <sys/syscallargs.h> 49 #include <sys/syscallvar.h> 50 51 #include <compat/sys/stat.h> 52 53 #include <compat/netbsd32/netbsd32.h> 54 #include <compat/netbsd32/netbsd32_syscall.h> 55 #include <compat/netbsd32/netbsd32_syscallargs.h> 56 57 static void netbsd32_stat12_to_netbsd32(struct stat12 *, 58 struct netbsd32_stat12 *); 59 60 /* for use with {,fl}stat() */ 61 static void 62 netbsd32_stat12_to_netbsd32(struct stat12 *sp12, struct netbsd32_stat12 *sp32) 63 { 64 65 sp32->st_dev = sp12->st_dev; 66 sp32->st_ino = sp12->st_ino; 67 sp32->st_mode = sp12->st_mode; 68 sp32->st_nlink = sp12->st_nlink; 69 sp32->st_uid = sp12->st_uid; 70 sp32->st_gid = sp12->st_gid; 71 sp32->st_rdev = sp12->st_rdev; 72 if (sp12->st_size < (quad_t)1 << 32) 73 sp32->st_size = sp12->st_size; 74 else 75 sp32->st_size = -2; 76 sp32->st_atimespec.tv_sec = sp12->st_atimespec.tv_sec; 77 sp32->st_atimespec.tv_nsec = sp12->st_atimespec.tv_nsec; 78 sp32->st_mtimespec.tv_sec = sp12->st_mtimespec.tv_sec; 79 sp32->st_mtimespec.tv_nsec = sp12->st_mtimespec.tv_nsec; 80 sp32->st_ctimespec.tv_sec = sp12->st_ctimespec.tv_sec; 81 sp32->st_ctimespec.tv_nsec = sp12->st_ctimespec.tv_nsec; 82 sp32->st_blocks = sp12->st_blocks; 83 sp32->st_blksize = sp12->st_blksize; 84 sp32->st_flags = sp12->st_flags; 85 sp32->st_gen = sp12->st_gen; 86 } 87 88 int 89 compat_12_netbsd32_reboot(struct lwp *l, const struct compat_12_netbsd32_reboot_args *uap, register_t *retval) 90 { 91 /* { 92 syscallarg(int) opt; 93 } */ 94 struct compat_12_sys_reboot_args ua; 95 96 NETBSD32TO64_UAP(opt); 97 return compat_12_sys_reboot(l, &ua, retval); 98 } 99 100 int 101 compat_12_netbsd32_msync(struct lwp *l, const struct compat_12_netbsd32_msync_args *uap, register_t *retval) 102 { 103 /* { 104 syscallarg(netbsd32_voidp) addr; 105 syscallarg(netbsd32_size_t) len; 106 } */ 107 struct sys___msync13_args ua; 108 109 NETBSD32TOP_UAP(addr, void *); 110 NETBSD32TOX_UAP(len, size_t); 111 SCARG(&ua, flags) = MS_SYNC | MS_INVALIDATE; 112 return sys___msync13(l, &ua, retval); 113 } 114 115 int 116 compat_12_netbsd32_oswapon(struct lwp *l, const struct compat_12_netbsd32_oswapon_args *uap, register_t *retval) 117 { 118 /* { 119 syscallarg(const netbsd32_charp) name; 120 } */ 121 struct sys_swapctl_args ua; 122 123 SCARG(&ua, cmd) = SWAP_ON; 124 SCARG(&ua, arg) = SCARG_P32(uap, name); 125 SCARG(&ua, misc) = 0; /* priority */ 126 return sys_swapctl(l, &ua, retval); 127 } 128 129 int 130 compat_12_netbsd32_stat12(struct lwp *l, const struct compat_12_netbsd32_stat12_args *uap, register_t *retval) 131 { 132 /* { 133 syscallarg(const netbsd32_charp) path; 134 syscallarg(netbsd32_stat12p_t) ub; 135 } */ 136 struct netbsd32_stat12 sb32; 137 struct stat12 sb12; 138 struct stat sb; 139 int error; 140 141 error = do_sys_stat(SCARG_P32(uap, path), FOLLOW, &sb); 142 if (error) 143 return error; 144 145 compat_12_stat_conv(&sb, &sb12); 146 netbsd32_stat12_to_netbsd32(&sb12, &sb32); 147 148 return copyout(&sb32, SCARG_P32(uap, ub), sizeof sb32); 149 } 150 151 int 152 compat_12_netbsd32_fstat12(struct lwp *l, const struct compat_12_netbsd32_fstat12_args *uap, register_t *retval) 153 { 154 /* { 155 syscallarg(int) fd; 156 syscallarg(netbsd32_stat12p_t) sb; 157 } */ 158 struct netbsd32_stat12 sb32; 159 struct stat12 sb12; 160 struct stat sb; 161 int error; 162 163 error = do_sys_fstat(SCARG(uap, fd), &sb); 164 if (error) 165 return error; 166 167 compat_12_stat_conv(&sb, &sb12); 168 netbsd32_stat12_to_netbsd32(&sb12, &sb32); 169 170 return copyout(&sb32, SCARG_P32(uap, sb), sizeof sb32); 171 } 172 173 int 174 compat_12_netbsd32_lstat12(struct lwp *l, const struct compat_12_netbsd32_lstat12_args *uap, register_t *retval) 175 { 176 /* { 177 syscallarg(const netbsd32_charp) path; 178 syscallarg(netbsd32_stat12p_t) ub; 179 } */ 180 struct netbsd32_stat12 sb32; 181 struct stat12 sb12; 182 struct stat sb; 183 int error; 184 185 error = do_sys_stat(SCARG_P32(uap, path), NOFOLLOW, &sb); 186 if (error) 187 return error; 188 189 compat_12_stat_conv(&sb, &sb12); 190 netbsd32_stat12_to_netbsd32(&sb12, &sb32); 191 192 return copyout(&sb32, SCARG_P32(uap, ub), sizeof sb32); 193 } 194 195 int 196 compat_12_netbsd32_getdirentries(struct lwp *l, const struct compat_12_netbsd32_getdirentries_args *uap, register_t *retval) 197 { 198 /* { 199 syscallarg(int) fd; 200 syscallarg(netbsd32_charp) buf; 201 syscallarg(u_int) count; 202 syscallarg(netbsd32_longp) basep; 203 } */ 204 struct compat_12_sys_getdirentries_args ua; 205 206 NETBSD32TO64_UAP(fd); 207 NETBSD32TOP_UAP(buf, char); 208 NETBSD32TO64_UAP(count); 209 NETBSD32TOP_UAP(basep, long); 210 211 return compat_12_sys_getdirentries(l, &ua, retval); 212 } 213 214 static struct syscall_package compat_netbsd32_12_syscalls[] = { 215 { NETBSD32_SYS_compat_12_netbsd32_reboot, 0, 216 (sy_call_t *)compat_12_netbsd32_reboot }, 217 { NETBSD32_SYS_compat_12_netbsd32_msync, 0, 218 (sy_call_t *)compat_12_netbsd32_msync }, 219 { NETBSD32_SYS_compat_12_netbsd32_oswapon, 0, 220 (sy_call_t *)compat_12_netbsd32_oswapon }, 221 { NETBSD32_SYS_compat_12_netbsd32_stat12, 0, 222 (sy_call_t *)compat_12_netbsd32_stat12 }, 223 { NETBSD32_SYS_compat_12_netbsd32_fstat12, 0, 224 (sy_call_t *)compat_12_netbsd32_fstat12 }, 225 { NETBSD32_SYS_compat_12_netbsd32_lstat12, 0, 226 (sy_call_t *)compat_12_netbsd32_lstat12 }, 227 { NETBSD32_SYS_compat_12_netbsd32_getdirentries, 0, 228 (sy_call_t *)compat_12_netbsd32_getdirentries }, 229 { 0, 0, NULL } 230 }; 231 232 MODULE(MODULE_CLASS_EXEC, compat_netbsd32_12, "compat_netbsd32_13,compat_12"); 233 234 static int 235 compat_netbsd32_12_modcmd(modcmd_t cmd, void *arg) 236 { 237 238 switch (cmd) { 239 case MODULE_CMD_INIT: 240 return syscall_establish(&emul_netbsd32, 241 compat_netbsd32_12_syscalls); 242 243 case MODULE_CMD_FINI: 244 return syscall_disestablish(&emul_netbsd32, 245 compat_netbsd32_12_syscalls); 246 247 default: 248 return ENOTTY; 249 } 250 } 251