1 /* $NetBSD: rumpnfsd.c,v 1.9 2015/11/08 02:45:16 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 #include <rpc/rpc.h>
41
42 void *mountd_main(void *);
43 void *rpcbind_main(void *);
44 int nfsd_main(int, char **);
45
46 sem_t gensem;
47
48 #include "../../../net/config/netconfig.c"
49 #include "../../common/h_fsmacros.h"
50 #include "svc_fdset.h"
51
52 #include <rump/rump.h>
53 #include <rump/rump_syscalls.h>
54
55 int
main(int argc,char * argv[])56 main(int argc, char *argv[])
57 {
58 const char *ethername, *ethername_ro;
59 const char *serveraddr, *serveraddr_ro;
60 const char *netmask;
61 const char *exportpath;
62 const char *imagename;
63 char ifname[IFNAMSIZ], ifname_ro[IFNAMSIZ];
64 void *fsarg;
65 pthread_t t;
66 int rv;
67
68 /* for netcfg */
69 noatf = 1;
70
71 /* use defaults? */
72 if (argc == 1) {
73 ethername = "etherbus";
74 ethername_ro = "etherbus_ro";
75 serveraddr = "10.3.2.1";
76 serveraddr_ro = "10.4.2.1";
77 netmask = "255.255.255.0";
78 exportpath = "/myexport";
79 imagename = "ffs.img";
80 } else {
81 ethername = argv[1];
82 ethername_ro = argv[2];
83 serveraddr = argv[3];
84 serveraddr_ro = argv[4];
85 netmask = argv[5];
86 exportpath = argv[6];
87 imagename = argv[7];
88 }
89
90 rump_init();
91 svc_fdset_init(SVC_FDSET_MT);
92
93 rv = rump_pub_etfs_register("/etc/exports", "./exports", RUMP_ETFS_REG);
94 if (rv) {
95 errx(1, "register /etc/exports: %s", strerror(rv));
96 }
97
98 /* mini-mtree for mountd */
99 static const char *const dirs[] = { "/var", "/var/run", "/var/db" };
100 for (size_t i = 0; i < __arraycount(dirs); i++)
101 if (rump_sys_mkdir(dirs[i], 0777) == -1)
102 err(1, "can't mkdir `%s'", dirs[i]);
103
104 if (ffs_fstest_newfs(NULL, &fsarg,
105 imagename, FSTEST_IMGSIZE, NULL) != 0)
106 err(1, "newfs failed");
107 if (ffs_fstest_mount(NULL, fsarg, exportpath, 0) != 0)
108 err(1, "mount failed");
109
110 #if 0
111 /*
112 * Serve from host instead of dedicated mount?
113 * THIS IS MORE EVIL THAN MURRAY THE DEMONIC TALKING SKULL!
114 */
115
116 if (ukfs_modload("/usr/lib/librumpfs_syspuffs.so") < 1)
117 errx(1, "modload");
118
119 mount_syspuffs_parseargs(__arraycount(pnullarg), pnullarg,
120 &args, &mntflags, canon_dev, canon_dir);
121 if ((ukfs = ukfs_mount(MOUNT_PUFFS, "/", UKFS_DEFAULTMP, MNT_RDONLY,
122 &args, sizeof(args))) == NULL)
123 err(1, "mount");
124
125 if (ukfs_modload("/usr/lib/librumpfs_nfsserver.so") < 1)
126 errx(1, "modload");
127 #endif
128
129 if (sem_init(&gensem, 1, 0) == -1)
130 err(1, "gensem init");
131
132 /* create interface */
133 netcfg_rump_makeshmif(ethername, ifname);
134 netcfg_rump_if(ifname, serveraddr, netmask);
135
136 netcfg_rump_makeshmif(ethername_ro, ifname_ro);
137 netcfg_rump_if(ifname_ro, serveraddr_ro, netmask);
138
139 /*
140 * No syslogging, thanks.
141 * XXX: "0" does not modify the mask, so pick something
142 * which is unlikely to cause any logging
143 */
144 setlogmask(0x10000000);
145
146 if (pthread_create(&t, NULL, rpcbind_main, NULL) == -1)
147 err(1, "rpcbind");
148 sem_wait(&gensem);
149
150 if (pthread_create(&t, NULL, mountd_main, NULL) == -1)
151 err(1, "mountd");
152 sem_wait(&gensem);
153
154 rv = 0;
155 /* signal the other process we're almost done */
156 if (write(3, &rv, 4) != 4)
157 errx(1, "magic write failed");
158
159 {
160 char *nfsargv[] = { __UNCONST("nfsd"), NULL };
161 nfsd_main(1, nfsargv);
162 }
163 /*NOTREACHED*/
164
165 return 0;
166 }
167