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netbsd32_compat_12.c revision 1.24
      1 /*	$NetBSD: netbsd32_compat_12.c,v 1.24 2007/03/16 22:21:41 dsl 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 1.24 2007/03/16 22:21:41 dsl 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/syscallargs.h>
     46 
     47 #include <compat/sys/stat.h>
     48 
     49 #include <compat/netbsd32/netbsd32.h>
     50 #include <compat/netbsd32/netbsd32_syscallargs.h>
     51 
     52 static void netbsd32_stat12_to_netbsd32 __P((struct stat12 *,
     53 		struct netbsd32_stat12 *));
     54 
     55 /* for use with {,fl}stat() */
     56 static void
     57 netbsd32_stat12_to_netbsd32(sp12, sp32)
     58 	struct stat12 *sp12;
     59 	struct netbsd32_stat12 *sp32;
     60 {
     61 
     62 	sp32->st_dev = sp12->st_dev;
     63 	sp32->st_ino = sp12->st_ino;
     64 	sp32->st_mode = sp12->st_mode;
     65 	sp32->st_nlink = sp12->st_nlink;
     66 	sp32->st_uid = sp12->st_uid;
     67 	sp32->st_gid = sp12->st_gid;
     68 	sp32->st_rdev = sp12->st_rdev;
     69 	if (sp12->st_size < (quad_t)1 << 32)
     70 		sp32->st_size = sp12->st_size;
     71 	else
     72 		sp32->st_size = -2;
     73 	sp32->st_atimespec.tv_sec = sp12->st_atimespec.tv_sec;
     74 	sp32->st_atimespec.tv_nsec = sp12->st_atimespec.tv_nsec;
     75 	sp32->st_mtimespec.tv_sec = sp12->st_mtimespec.tv_sec;
     76 	sp32->st_mtimespec.tv_nsec = sp12->st_mtimespec.tv_nsec;
     77 	sp32->st_ctimespec.tv_sec = sp12->st_ctimespec.tv_sec;
     78 	sp32->st_ctimespec.tv_nsec = sp12->st_ctimespec.tv_nsec;
     79 	sp32->st_blocks = sp12->st_blocks;
     80 	sp32->st_blksize = sp12->st_blksize;
     81 	sp32->st_flags = sp12->st_flags;
     82 	sp32->st_gen = sp12->st_gen;
     83 }
     84 
     85 int
     86 compat_12_netbsd32_reboot(l, v, retval)
     87 	struct lwp *l;
     88 	void *v;
     89 	register_t *retval;
     90 {
     91 	struct compat_12_netbsd32_reboot_args /* {
     92 		syscallarg(int) opt;
     93 	} */ *uap = v;
     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(l, v, retval)
    102 	struct lwp *l;
    103 	void *v;
    104 	register_t *retval;
    105 {
    106 	struct compat_12_netbsd32_msync_args /* {
    107 		syscallarg(netbsd32_caddr_t) addr;
    108 		syscallarg(netbsd32_size_t) len;
    109 	} */ *uap = v;
    110 	struct sys___msync13_args ua;
    111 
    112 	NETBSD32TOP_UAP(addr, void *);
    113 	NETBSD32TOX_UAP(len, size_t);
    114 	SCARG(&ua, flags) = MS_SYNC | MS_INVALIDATE;
    115 	return (sys___msync13(l, &ua, retval));
    116 }
    117 
    118 int
    119 compat_12_netbsd32_oswapon(l, v, retval)
    120 	struct lwp *l;
    121 	void *v;
    122 	register_t *retval;
    123 {
    124 	struct compat_12_netbsd32_oswapon_args /* {
    125 		syscallarg(const netbsd32_charp) name;
    126 	} */ *uap = v;
    127 	struct sys_swapctl_args ua;
    128 
    129 	SCARG(&ua, cmd) = SWAP_ON;
    130 	SCARG(&ua, arg) = (void *)NETBSD32PTR64(SCARG(uap, name));
    131 	SCARG(&ua, misc) = 0;	/* priority */
    132 	return (sys_swapctl(l, &ua, retval));
    133 }
    134 
    135 int
    136 compat_12_netbsd32_stat12(l, v, retval)
    137 	struct lwp *l;
    138 	void *v;
    139 	register_t *retval;
    140 {
    141 	struct proc *p = l->l_proc;
    142 	struct compat_12_netbsd32_stat12_args /* {
    143 		syscallarg(const netbsd32_charp) path;
    144 		syscallarg(netbsd32_stat12p_t) ub;
    145 	} */ *uap = v;
    146 	struct netbsd32_stat12 *sp32, sb32;
    147 	struct stat12 sb12;
    148 	struct stat12 *sp12 = &sb12;
    149 	struct compat_12_sys_stat_args ua;
    150 	void *sg;
    151 	int rv;
    152 
    153 	NETBSD32TOP_UAP(path, const char);
    154 	SCARG(&ua, ub) = &sb12;
    155 	sg = stackgap_init(p, 0);
    156 	CHECK_ALT_EXIST(l, &sg, SCARG(&ua, path));
    157 
    158 	rv = compat_12_sys_stat(l, &ua, retval);
    159 	if (rv)
    160 		return (rv);
    161 
    162 	sp32 = (struct netbsd32_stat12 *)NETBSD32PTR64(SCARG(uap, ub));
    163 	netbsd32_stat12_to_netbsd32(sp12, &sb32);
    164 
    165 	return (copyout(&sb32, sp32, sizeof sb32));
    166 }
    167 
    168 int
    169 compat_12_netbsd32_fstat12(l, v, retval)
    170 	struct lwp *l;
    171 	void *v;
    172 	register_t *retval;
    173 {
    174 	struct compat_12_netbsd32_fstat12_args /* {
    175 		syscallarg(int) fd;
    176 		syscallarg(netbsd32_stat12p_t) sb;
    177 	} */ *uap = v;
    178 	struct netbsd32_stat12 *sp32, sb32;
    179 	struct stat12 sb12;
    180 	struct stat12 *sp12 = &sb12;
    181 	struct compat_12_sys_fstat_args ua;
    182 	int rv;
    183 
    184 	NETBSD32TO64_UAP(fd);
    185 	SCARG(&ua, sb) = &sb12;
    186 	rv = compat_12_sys_fstat(l, &ua, retval);
    187 	if (rv)
    188 		return (rv);
    189 
    190 	sp32 = (struct netbsd32_stat12 *)NETBSD32PTR64(SCARG(uap, sb));
    191 	netbsd32_stat12_to_netbsd32(sp12, &sb32);
    192 
    193 	return (copyout(&sb32, sp32, sizeof sb32));
    194 }
    195 
    196 int
    197 compat_12_netbsd32_lstat12(l, v, retval)
    198 	struct lwp *l;
    199 	void *v;
    200 	register_t *retval;
    201 {
    202 	struct proc *p = l->l_proc;
    203 	struct compat_12_netbsd32_lstat12_args /* {
    204 		syscallarg(const netbsd32_charp) path;
    205 		syscallarg(netbsd32_stat12p_t) ub;
    206 	} */ *uap = v;
    207 	struct netbsd32_stat12 *sp32, sb32;
    208 	struct stat12 sb12;
    209 	struct stat12 *sp12 = &sb12;
    210 	struct compat_12_sys_lstat_args ua;
    211 	void *sg;
    212 	int rv;
    213 
    214 	NETBSD32TOP_UAP(path, const char);
    215 	SCARG(&ua, ub) = &sb12;
    216 	sg = stackgap_init(p, 0);
    217 	CHECK_ALT_EXIST(l, &sg, SCARG(&ua, path));
    218 
    219 	rv = compat_12_sys_lstat(l, &ua, retval);
    220 	if (rv)
    221 		return (rv);
    222 
    223 	sp32 = (struct netbsd32_stat12 *)NETBSD32PTR64(SCARG(uap, ub));
    224 	netbsd32_stat12_to_netbsd32(sp12, &sb32);
    225 
    226 	return (copyout(&sb32, sp32, sizeof sb32));
    227 }
    228 
    229 int
    230 compat_12_netbsd32_getdirentries(l, v, retval)
    231 	struct lwp *l;
    232 	void *v;
    233 	register_t *retval;
    234 {
    235 	struct compat_12_netbsd32_getdirentries_args /* {
    236 		syscallarg(int) fd;
    237 		syscallarg(netbsd32_charp) buf;
    238 		syscallarg(u_int) count;
    239 		syscallarg(netbsd32_longp) basep;
    240 	} */ *uap = v;
    241 	struct compat_12_sys_getdirentries_args ua;
    242 
    243 	NETBSD32TO64_UAP(fd);
    244 	NETBSD32TOP_UAP(buf, char);
    245 	NETBSD32TO64_UAP(count);
    246 	NETBSD32TOP_UAP(basep, long);
    247 
    248 	return (compat_12_sys_getdirentries(l, &ua, retval));
    249 }
    250