1/* $NetBSD: netbsd32_nfssvc.c,v 1.5 2016/10/15 06:50:13 skrll Exp $ */
2
3/*
4 * Copyright (c) 2015 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_nfssvc.c,v 1.5 2016/10/15 06:50:13 skrll Exp $");
33
34#if defined(_KERNEL_OPT)
35#include "opt_nfs.h"
36#include "opt_nfsserver.h"
37#include "opt_compat_netbsd.h"
38#endif
39
40#include <sys/param.h>
41#include <sys/vnode.h>
42#include <sys/filedesc.h>
43#include <sys/module.h>
44#include <sys/syscallvar.h>
45
46#include <compat/netbsd32/netbsd32.h>
47#include <compat/netbsd32/netbsd32_syscall.h>
48#include <compat/netbsd32/netbsd32_syscallargs.h>
49#include <compat/netbsd32/netbsd32_conv.h>
50
51#include <nfs/rpcv2.h>
52#include <nfs/nfsproto.h>
53#include <nfs/nfs.h>
54#include <nfs/nfs_var.h>
55
56extern struct emul emul_netbsd32;
57
58static int nfssvc32_addsock_in(struct nfsd_args *, const void *);
59static int nfssvc32_setexports_in(struct mountd_exports_list *, const void *);
60static int nfssvc32_nsd_in(struct nfsd_srvargs *, const void *);
61static int nfssvc32_nsd_out(void *, const struct nfsd_srvargs *);
62static int nfssvc32_exp_in(struct export_args *, const void *, size_t);
63
64static int
65nfssvc32_addsock_in(struct nfsd_args *nfsdarg, const void *argp)
66{
67 struct netbsd32_nfsd_args args32;
68 int error;
69
70 error = copyin(argp, &args32, sizeof args32);
71 if (!error) {
72 nfsdarg->sock = args32.sock;
73 nfsdarg->name = NETBSD32PTR64(args32.name);
74 nfsdarg->namelen = args32.namelen;
75 }
76
77 return error;
78}
79
80static int
81nfssvc32_setexports_in(struct mountd_exports_list *mel, const void *argp)
82{
83 struct netbsd32_mountd_exports_list args32;
84 int error;
85
86 error = copyin(argp, &args32, sizeof args32);
87 if (!error) {
88 mel->mel_path = NETBSD32PTR64(args32.mel_path);
89 mel->mel_nexports = args32.mel_nexports;
90 mel->mel_exports = NETBSD32PTR64(args32.mel_exports);
91 }
92
93 return error;
94}
95
96static int
97nfssvc32_nsd_in(struct nfsd_srvargs *nsd, const void *argp)
98{
99 struct netbsd32_nfsd_srvargs args32;
100 int error;
101
102 error = copyin(argp, &args32, sizeof args32);
103 if (!error) {
104 nsd->nsd_nfsd = NETBSD32PTR64(args32.nsd_nfsd);
105 nsd->nsd_uid = args32.nsd_uid;
106 nsd->nsd_haddr = args32.nsd_haddr;
107 nsd->nsd_cr = args32.nsd_cr;
108 nsd->nsd_authlen = args32.nsd_authlen;
109 nsd->nsd_authstr = NETBSD32PTR64(args32.nsd_authstr);
110 nsd->nsd_verflen = args32.nsd_verflen;
111 nsd->nsd_uid = args32.nsd_uid;
112 netbsd32_to_timeval(&args32.nsd_timestamp, &nsd->nsd_timestamp);
113 nsd->nsd_ttl = args32.nsd_ttl;
114 nsd->nsd_key[0] = args32.nsd_key[0];
115 nsd->nsd_key[1] = args32.nsd_key[1];
116 }
117
118 return error;
119}
120
121static int
122nfssvc32_nsd_out(void *argp, const struct nfsd_srvargs *nsd)
123{
124 struct netbsd32_nfsd_srvargs args32;
125
126 NETBSD32PTR32(args32.nsd_nfsd, nsd->nsd_nfsd);
127 args32.nsd_uid = nsd->nsd_uid;
128 args32.nsd_haddr = nsd->nsd_haddr;
129 args32.nsd_cr = nsd->nsd_cr;
130 args32.nsd_authlen = nsd->nsd_authlen;
131 NETBSD32PTR32(args32.nsd_authstr, nsd->nsd_authstr);
132 args32.nsd_verflen = nsd->nsd_verflen;
133 args32.nsd_uid = nsd->nsd_uid;
134 netbsd32_from_timeval(&nsd->nsd_timestamp, &args32.nsd_timestamp);
135 args32.nsd_ttl = nsd->nsd_ttl;
136 args32.nsd_key[0] = nsd->nsd_key[0];
137 args32.nsd_key[1] = nsd->nsd_key[1];
138
139 return copyout(nsd, argp, sizeof *nsd);
140}
141
142static int
143nfssvc32_exp_in(struct export_args *exp, const void *argp, size_t nexports)
144{
145 struct netbsd32_export_args exp32;
146 struct netbsd32_export_args const *argp32 = argp;
147 int error = 0;
148
149 for (size_t i = 0; i < nexports; i++) {
150 error = copyin(argp32, &exp32, sizeof exp32);
151 if (error)
152 break;
153 exp->ex_flags = exp32.ex_flags;
154 exp->ex_root = exp32.ex_root;
155 exp->ex_anon = exp32.ex_anon;
156 exp->ex_addr = NETBSD32PTR64(exp32.ex_addr);
157 exp->ex_addrlen = exp32.ex_addrlen;
158 exp->ex_mask = NETBSD32PTR64(exp32.ex_mask);
159 exp->ex_masklen = exp32.ex_masklen;
160 exp->ex_indexfile = NETBSD32PTR64(exp32.ex_indexfile);
161 exp++;
162 argp32++;
163 }
164
165 return error;
166}
167
168/*
169 * NFS server system calls
170 */
171
172static struct nfssvc_copy_ops netbsd32_ops = {
173 .addsock_in = nfssvc32_addsock_in,
174 .setexports_in = nfssvc32_setexports_in,
175 .nsd_in = nfssvc32_nsd_in,
176 .nsd_out = nfssvc32_nsd_out,
177 .exp_in = nfssvc32_exp_in,
178};
179
180int
181netbsd32_nfssvc(struct lwp *l, const struct netbsd32_nfssvc_args *uap,
182 register_t *retval)
183{
184 /* {
185 syscallarg(int) flag;
186 syscallarg(netbsd32_voidp *) argp;
187 } */
188 int flag = SCARG(uap, flag);
189 void *argp = SCARG_P32(uap, argp);
190
191 return do_nfssvc(&netbsd32_ops, l, flag, argp, retval);
192}
193
194static const struct syscall_package compat_nfssvc_syscalls[] = {
195 { NETBSD32_SYS_netbsd32_nfssvc, 0, (sy_call_t *)netbsd32_nfssvc },
196 { 0, 0, NULL },
197};
198
199MODULE(MODULE_CLASS_EXEC, compat_netbsd32_nfssrv, "nfsserver,compat_netbsd32");
200
201static int
202compat_netbsd32_nfssrv_modcmd(modcmd_t cmd, void *arg)
203{
204 int error;
205
206 switch (cmd) {
207 case MODULE_CMD_INIT:
208 error = syscall_establish(&emul_netbsd32,
209 compat_nfssvc_syscalls);
210 break;
211 case MODULE_CMD_FINI:
212 error = syscall_disestablish(&emul_netbsd32,
213 compat_nfssvc_syscalls);
214 break;
215 default:
216 error = ENOTTY;
217 break;
218 }
219 return error;
220}
221