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 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