1/*	$NetBSD: rumpnfsd.c,v 1.8 2014/05/12 15:31:07 christos Exp $	*/
2
3/*-
4 * Copyright (c) 2010 The NetBSD Foundation, Inc.
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 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
16 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#include <sys/types.h>
29
30#include <dlfcn.h>
31#include <err.h>
32#include <errno.h>
33#include <pthread.h>
34#include <semaphore.h>
35#include <stdio.h>
36#include <stdlib.h>
37#include <string.h>
38#include <syslog.h>
39#include <unistd.h>
40
41void *mountd_main(void *);
42void *rpcbind_main(void *);
43int nfsd_main(int, char **);
44
45sem_t gensem;
46
47#include "../../../net/config/netconfig.c"
48#include "../../common/h_fsmacros.h"
49#include "svc_fdset.h"
50
51#include <rump/rump.h>
52#include <rump/rump_syscalls.h>
53
54int
55main(int argc, char *argv[])
56{
57	const char *ethername, *ethername_ro;
58	const char *serveraddr, *serveraddr_ro;
59	const char *netmask;
60	const char *exportpath;
61	const char *imagename;
62	char ifname[IFNAMSIZ], ifname_ro[IFNAMSIZ];
63	void *fsarg;
64	pthread_t t;
65	int rv;
66
67	/* for netcfg */
68	noatf = 1;
69
70	/* use defaults? */
71	if (argc == 1) {
72		ethername = "etherbus";
73		ethername_ro = "etherbus_ro";
74		serveraddr = "10.3.2.1";
75		serveraddr_ro = "10.4.2.1";
76		netmask = "255.255.255.0";
77		exportpath = "/myexport";
78		imagename = "ffs.img";
79	} else {
80		ethername = argv[1];
81		ethername_ro = argv[2];
82		serveraddr = argv[3];
83		serveraddr_ro = argv[4];
84		netmask = argv[5];
85		exportpath = argv[6];
86		imagename = argv[7];
87	}
88
89	rump_init();
90	init_fdsets();
91
92	rv = rump_pub_etfs_register("/etc/exports", "./exports", RUMP_ETFS_REG);
93	if (rv) {
94		errx(1, "register /etc/exports: %s", strerror(rv));
95	}
96
97	/* mini-mtree for mountd */
98	static const char *const dirs[] = { "/var", "/var/run", "/var/db" };
99	for (size_t i = 0; i < __arraycount(dirs); i++)
100		if (rump_sys_mkdir(dirs[i], 0777) == -1)
101			err(1, "can't mkdir `%s'", dirs[i]);
102
103	if (ffs_fstest_newfs(NULL, &fsarg,
104	    imagename, FSTEST_IMGSIZE, NULL) != 0)
105		err(1, "newfs failed");
106	if (ffs_fstest_mount(NULL, fsarg, exportpath, 0) != 0)
107		err(1, "mount failed");
108
109#if 0
110	/*
111	 * Serve from host instead of dedicated mount?
112	 * THIS IS MORE EVIL THAN MURRAY THE DEMONIC TALKING SKULL!
113	 */
114
115	if (ukfs_modload("/usr/lib/librumpfs_syspuffs.so") < 1)
116		errx(1, "modload");
117
118	mount_syspuffs_parseargs(__arraycount(pnullarg), pnullarg,
119	    &args, &mntflags, canon_dev, canon_dir);
120	if ((ukfs = ukfs_mount(MOUNT_PUFFS, "/", UKFS_DEFAULTMP, MNT_RDONLY,
121	    &args, sizeof(args))) == NULL)
122		err(1, "mount");
123
124	if (ukfs_modload("/usr/lib/librumpfs_nfsserver.so") < 1)
125		errx(1, "modload");
126#endif
127
128	if (sem_init(&gensem, 1, 0) == -1)
129		err(1, "gensem init");
130
131	/* create interface */
132	netcfg_rump_makeshmif(ethername, ifname);
133	netcfg_rump_if(ifname, serveraddr, netmask);
134
135	netcfg_rump_makeshmif(ethername_ro, ifname_ro);
136	netcfg_rump_if(ifname_ro, serveraddr_ro, netmask);
137
138	/*
139	 * No syslogging, thanks.
140	 * XXX: "0" does not modify the mask, so pick something
141	 * which is unlikely to cause any logging
142	 */
143	setlogmask(0x10000000);
144
145	if (pthread_create(&t, NULL, rpcbind_main, NULL) == -1)
146		err(1, "rpcbind");
147	sem_wait(&gensem);
148
149	if (pthread_create(&t, NULL, mountd_main, NULL) == -1)
150		err(1, "mountd");
151	sem_wait(&gensem);
152
153	rv = 0;
154	/* signal the other process we're almost done */
155	if (write(3, &rv, 4) != 4)
156		errx(1, "magic write failed");
157
158	{
159	char *nfsargv[] = { __UNCONST("nfsd"), NULL };
160	nfsd_main(1, nfsargv);
161	}
162	/*NOTREACHED*/
163
164	return 0;
165}
166