ninepuffs.c revision 1.13
1 /* $NetBSD: ninepuffs.c,v 1.13 2007/07/07 21:14:28 pooka Exp $ */ 2 3 /* 4 * Copyright (c) 2007 Antti Kantee. All Rights Reserved. 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 /* 29 * 9puffs: access a 9P file server as a vfs via puffs 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 __RCSID("$NetBSD: ninepuffs.c,v 1.13 2007/07/07 21:14:28 pooka Exp $"); 35 #endif /* !lint */ 36 37 #include <sys/types.h> 38 #include <sys/socket.h> 39 #include <sys/poll.h> 40 41 #include <netinet/in.h> 42 43 #include <assert.h> 44 #include <err.h> 45 #include <netdb.h> 46 #include <puffs.h> 47 #include <stdio.h> 48 #include <stdlib.h> 49 #include <unistd.h> 50 51 #include "ninepuffs.h" 52 53 #define DEFPORT_9P 564 54 55 static void 56 usage(void) 57 { 58 59 errx(1, "usage: %s user server mountpoint", getprogname()); 60 } 61 62 /* 63 * TCPv4 connection to 9P file server, forget IL and IPv6 for now. 64 * Return connected socket or exit with error. 65 */ 66 static int 67 serverconnect(const char *addr, unsigned short port) 68 { 69 struct sockaddr_in mysin; 70 struct hostent *he; 71 int s; 72 73 he = gethostbyname2(addr, AF_INET); 74 if (he == NULL) { 75 herror("gethostbyname"); 76 exit(1); 77 } 78 79 s = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP); 80 if (s == -1) 81 err(1, "socket"); 82 83 memset(&mysin, 0, sizeof(struct sockaddr_in)); 84 mysin.sin_family = AF_INET; 85 mysin.sin_port = htons(port); 86 memcpy(&mysin.sin_addr, he->h_addr, sizeof(struct in_addr)); 87 88 if (connect(s, (struct sockaddr *)&mysin, sizeof(mysin)) == -1) 89 err(1, "connect"); 90 91 return s; 92 } 93 94 int 95 main(int argc, char *argv[]) 96 { 97 struct puffs9p p9p; 98 struct puffs_usermount *pu; 99 struct puffs_ops *pops; 100 struct puffs_node *pn_root; 101 mntoptparse_t mp; 102 char *srvhost; 103 char *user; 104 unsigned short port; 105 int mntflags, pflags, lflags, ch; 106 int detach; 107 108 setprogname(argv[0]); 109 110 if (argc < 3) 111 usage(); 112 113 mntflags = pflags = lflags = 0; 114 detach = 1; 115 port = DEFPORT_9P; 116 117 while ((ch = getopt(argc, argv, "o:p:s")) != -1) { 118 switch (ch) { 119 case 'o': 120 mp = getmntopts(optarg, puffsmopts, &mntflags, &pflags); 121 if (mp == NULL) 122 err(1, "getmntopts"); 123 freemntopts(mp); 124 break; 125 case 'p': 126 port = atoi(optarg); 127 break; 128 case 's': 129 lflags |= PUFFSLOOP_NODAEMON; 130 break; 131 default: 132 usage(); 133 /*NOTREACHED*/ 134 } 135 } 136 argc -= optind; 137 argv += optind; 138 139 if (argc != 3) 140 usage(); 141 142 user = argv[0]; 143 srvhost = argv[1]; 144 145 if (pflags & PUFFS_FLAG_OPDUMP) 146 lflags |= PUFFSLOOP_NODAEMON; 147 pflags |= PUFFS_KFLAG_WTCACHE | PUFFS_KFLAG_IAONDEMAND; 148 149 PUFFSOP_INIT(pops); 150 151 PUFFSOP_SET(pops, puffs9p, fs, unmount); 152 PUFFSOP_SETFSNOP(pops, sync); 153 PUFFSOP_SETFSNOP(pops, statvfs); 154 155 PUFFSOP_SET(pops, puffs9p, node, lookup); 156 PUFFSOP_SET(pops, puffs9p, node, readdir); 157 PUFFSOP_SET(pops, puffs9p, node, getattr); 158 PUFFSOP_SET(pops, puffs9p, node, setattr); 159 PUFFSOP_SET(pops, puffs9p, node, create); 160 PUFFSOP_SET(pops, puffs9p, node, open); 161 PUFFSOP_SET(pops, puffs9p, node, mkdir); 162 PUFFSOP_SET(pops, puffs9p, node, remove); 163 PUFFSOP_SET(pops, puffs9p, node, rmdir); 164 PUFFSOP_SET(pops, puffs9p, node, read); 165 PUFFSOP_SET(pops, puffs9p, node, write); 166 PUFFSOP_SET(pops, puffs9p, node, rename); 167 PUFFSOP_SET(pops, puffs9p, node, inactive); 168 PUFFSOP_SET(pops, puffs9p, node, reclaim); 169 #if 0 170 PUFFSOP_SET(pops, puffs9p, node, mknod); 171 #endif 172 173 memset(&p9p, 0, sizeof(p9p)); 174 p9p.maxreq = P9P_DEFREQLEN; 175 p9p.nextfid = 1; 176 177 p9p.servsock = serverconnect(srvhost, port); 178 pu = puffs_init(pops, "9P", &p9p, pflags); 179 if (pu == NULL) 180 err(1, "puffs_init"); 181 182 if ((pn_root = p9p_handshake(pu, user)) == NULL) { 183 puffs_exit(pu, 1); 184 exit(1); 185 } 186 187 if (puffs_setblockingmode(pu, PUFFSDEV_NONBLOCK) == -1) 188 err(1, "setblockingmode"); 189 190 puffs_framev_init(pu, p9pbuf_read, p9pbuf_write, p9pbuf_cmp, 191 puffs_framev_unmountonclose); 192 if (puffs_framev_addfd(pu, p9p.servsock, 193 PUFFS_FBIO_READ | PUFFS_FBIO_WRITE) == -1) 194 err(1, "puffs_framebuf_addfd"); 195 196 if (puffs_mount(pu, argv[2], mntflags, pn_root) == -1) 197 err(1, "puffs_mount"); 198 199 return puffs_mainloop(pu, lflags); 200 } 201
Indexes created Tue Sep 30 17:09:57 GMT 2025