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netbsd32_compat_12.c revision 1.20
      1 /*	$NetBSD: netbsd32_compat_12.c,v 1.20 2005/12/11 12:20:22 christos 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  * 3. The name of the author may not be used to endorse or promote products
     16  *    derived from this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     23  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     24  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     26  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     28  * SUCH DAMAGE.
     29  */
     30 
     31 #include <sys/cdefs.h>
     32 __KERNEL_RCSID(0, "$NetBSD: netbsd32_compat_12.c,v 1.20 2005/12/11 12:20:22 christos Exp $");
     33 
     34 #if defined(_KERNEL_OPT)
     35 #include "opt_compat_netbsd.h"
     36 #endif
     37 
     38 #include <sys/param.h>
     39 #include <sys/systm.h>
     40 #include <sys/mount.h>
     41 #include <sys/mman.h>
     42 #include <sys/proc.h>
     43 #include <sys/stat.h>
     44 #include <sys/swap.h>
     45 #include <sys/sa.h>
     46 #include <sys/syscallargs.h>
     47 
     48 #include <compat/sys/stat.h>
     49 
     50 #include <compat/netbsd32/netbsd32.h>
     51 #include <compat/netbsd32/netbsd32_syscallargs.h>
     52 
     53 static void netbsd32_stat12_to_netbsd32 __P((struct stat12 *,
     54 		struct netbsd32_stat12 *));
     55 
     56 /* for use with {,fl}stat() */
     57 static void
     58 netbsd32_stat12_to_netbsd32(sp12, sp32)
     59 	struct stat12 *sp12;
     60 	struct netbsd32_stat12 *sp32;
     61 {
     62 
     63 	sp32->st_dev = sp12->st_dev;
     64 	sp32->st_ino = sp12->st_ino;
     65 	sp32->st_mode = sp12->st_mode;
     66 	sp32->st_nlink = sp12->st_nlink;
     67 	sp32->st_uid = sp12->st_uid;
     68 	sp32->st_gid = sp12->st_gid;
     69 	sp32->st_rdev = sp12->st_rdev;
     70 	if (sp12->st_size < (quad_t)1 << 32)
     71 		sp32->st_size = sp12->st_size;
     72 	else
     73 		sp32->st_size = -2;
     74 	sp32->st_atimespec.tv_sec = sp12->st_atimespec.tv_sec;
     75 	sp32->st_atimespec.tv_nsec = sp12->st_atimespec.tv_nsec;
     76 	sp32->st_mtimespec.tv_sec = sp12->st_mtimespec.tv_sec;
     77 	sp32->st_mtimespec.tv_nsec = sp12->st_mtimespec.tv_nsec;
     78 	sp32->st_ctimespec.tv_sec = sp12->st_ctimespec.tv_sec;
     79 	sp32->st_ctimespec.tv_nsec = sp12->st_ctimespec.tv_nsec;
     80 	sp32->st_blocks = sp12->st_blocks;
     81 	sp32->st_blksize = sp12->st_blksize;
     82 	sp32->st_flags = sp12->st_flags;
     83 	sp32->st_gen = sp12->st_gen;
     84 }
     85 
     86 int
     87 compat_12_netbsd32_reboot(l, v, retval)
     88 	struct lwp *l;
     89 	void *v;
     90 	register_t *retval;
     91 {
     92 	struct compat_12_netbsd32_reboot_args /* {
     93 		syscallarg(int) opt;
     94 	} */ *uap = v;
     95 	struct compat_12_sys_reboot_args ua;
     96 
     97 	NETBSD32TO64_UAP(opt);
     98 	return (compat_12_sys_reboot(l, &ua, retval));
     99 }
    100 
    101 int
    102 compat_12_netbsd32_msync(l, v, retval)
    103 	struct lwp *l;
    104 	void *v;
    105 	register_t *retval;
    106 {
    107 	struct compat_12_netbsd32_msync_args /* {
    108 		syscallarg(netbsd32_caddr_t) addr;
    109 		syscallarg(netbsd32_size_t) len;
    110 	} */ *uap = v;
    111 	struct sys___msync13_args ua;
    112 
    113 	NETBSD32TOX64_UAP(addr, caddr_t);
    114 	NETBSD32TOX_UAP(len, size_t);
    115 	SCARG(&ua, flags) = MS_SYNC | MS_INVALIDATE;
    116 	return (sys___msync13(l, &ua, retval));
    117 }
    118 
    119 int
    120 compat_12_netbsd32_oswapon(l, v, retval)
    121 	struct lwp *l;
    122 	void *v;
    123 	register_t *retval;
    124 {
    125 	struct compat_12_netbsd32_oswapon_args /* {
    126 		syscallarg(const netbsd32_charp) name;
    127 	} */ *uap = v;
    128 	struct sys_swapctl_args ua;
    129 
    130 	SCARG(&ua, cmd) = SWAP_ON;
    131 	SCARG(&ua, arg) = (void *)NETBSD32PTR64(SCARG(uap, name));
    132 	SCARG(&ua, misc) = 0;	/* priority */
    133 	return (sys_swapctl(l, &ua, retval));
    134 }
    135 
    136 int
    137 compat_12_netbsd32_stat12(l, v, retval)
    138 	struct lwp *l;
    139 	void *v;
    140 	register_t *retval;
    141 {
    142 	struct proc *p = l->l_proc;
    143 	struct compat_12_netbsd32_stat12_args /* {
    144 		syscallarg(const netbsd32_charp) path;
    145 		syscallarg(netbsd32_stat12p_t) ub;
    146 	} */ *uap = v;
    147 	struct netbsd32_stat12 *sp32, sb32;
    148 	struct stat12 sb12;
    149 	struct stat12 *sp12 = &sb12;
    150 	struct compat_12_sys_stat_args ua;
    151 	caddr_t sg;
    152 	int rv;
    153 
    154 	NETBSD32TOP_UAP(path, const char);
    155 	SCARG(&ua, ub) = &sb12;
    156 	sg = stackgap_init(p, 0);
    157 	CHECK_ALT_EXIST(l, &sg, SCARG(&ua, path));
    158 
    159 	rv = compat_12_sys_stat(l, &ua, retval);
    160 	if (rv)
    161 		return (rv);
    162 
    163 	sp32 = (struct netbsd32_stat12 *)NETBSD32PTR64(SCARG(uap, ub));
    164 	netbsd32_stat12_to_netbsd32(sp12, &sb32);
    165 
    166 	return (copyout(&sb32, sp32, sizeof sb32));
    167 }
    168 
    169 int
    170 compat_12_netbsd32_fstat12(l, v, retval)
    171 	struct lwp *l;
    172 	void *v;
    173 	register_t *retval;
    174 {
    175 	struct compat_12_netbsd32_fstat12_args /* {
    176 		syscallarg(int) fd;
    177 		syscallarg(netbsd32_stat12p_t) sb;
    178 	} */ *uap = v;
    179 	struct netbsd32_stat12 *sp32, sb32;
    180 	struct stat12 sb12;
    181 	struct stat12 *sp12 = &sb12;
    182 	struct compat_12_sys_fstat_args ua;
    183 	int rv;
    184 
    185 	NETBSD32TO64_UAP(fd);
    186 	SCARG(&ua, sb) = &sb12;
    187 	rv = compat_12_sys_fstat(l, &ua, retval);
    188 	if (rv)
    189 		return (rv);
    190 
    191 	sp32 = (struct netbsd32_stat12 *)NETBSD32PTR64(SCARG(uap, sb));
    192 	netbsd32_stat12_to_netbsd32(sp12, &sb32);
    193 
    194 	return (copyout(&sb32, sp32, sizeof sb32));
    195 }
    196 
    197 int
    198 compat_12_netbsd32_lstat12(l, v, retval)
    199 	struct lwp *l;
    200 	void *v;
    201 	register_t *retval;
    202 {
    203 	struct proc *p = l->l_proc;
    204 	struct compat_12_netbsd32_lstat12_args /* {
    205 		syscallarg(const netbsd32_charp) path;
    206 		syscallarg(netbsd32_stat12p_t) ub;
    207 	} */ *uap = v;
    208 	struct netbsd32_stat12 *sp32, sb32;
    209 	struct stat12 sb12;
    210 	struct stat12 *sp12 = &sb12;
    211 	struct compat_12_sys_lstat_args ua;
    212 	caddr_t sg;
    213 	int rv;
    214 
    215 	NETBSD32TOP_UAP(path, const char);
    216 	SCARG(&ua, ub) = &sb12;
    217 	sg = stackgap_init(p, 0);
    218 	CHECK_ALT_EXIST(l, &sg, SCARG(&ua, path));
    219 
    220 	rv = compat_12_sys_lstat(l, &ua, retval);
    221 	if (rv)
    222 		return (rv);
    223 
    224 	sp32 = (struct netbsd32_stat12 *)NETBSD32PTR64(SCARG(uap, ub));
    225 	netbsd32_stat12_to_netbsd32(sp12, &sb32);
    226 
    227 	return (copyout(&sb32, sp32, sizeof sb32));
    228 }
    229 
    230 int
    231 compat_12_netbsd32_getdirentries(l, v, retval)
    232 	struct lwp *l;
    233 	void *v;
    234 	register_t *retval;
    235 {
    236 	struct compat_12_netbsd32_getdirentries_args /* {
    237 		syscallarg(int) fd;
    238 		syscallarg(netbsd32_charp) buf;
    239 		syscallarg(u_int) count;
    240 		syscallarg(netbsd32_longp) basep;
    241 	} */ *uap = v;
    242 	struct compat_12_sys_getdirentries_args ua;
    243 
    244 	NETBSD32TO64_UAP(fd);
    245 	NETBSD32TOP_UAP(buf, char);
    246 	NETBSD32TO64_UAP(count);
    247 	NETBSD32TOP_UAP(basep, long);
    248 
    249 	return (compat_12_sys_getdirentries(l, &ua, retval));
    250 }
    251