ninepuffs.c revision 1.14
1 /* $NetBSD: ninepuffs.c,v 1.14 2007/07/08 16:29:29 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 1.14 2007/07/08 16:29:29 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 #define DEFUSER_9P "glenda" 55 56 static void 57 usage(void) 58 { 59 60 errx(1, "usage: %s [-o mntopts] [-p port] [-u user] [-s] server mount", 61 getprogname()); 62 } 63 64 /* 65 * TCPv4 connection to 9P file server, forget IL and IPv6 for now. 66 * Return connected socket or exit with error. 67 */ 68 static int 69 serverconnect(const char *addr, unsigned short port) 70 { 71 struct sockaddr_in mysin; 72 struct hostent *he; 73 int s; 74 75 he = gethostbyname2(addr, AF_INET); 76 if (he == NULL) { 77 herror("gethostbyname"); 78 exit(1); 79 } 80 81 s = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP); 82 if (s == -1) 83 err(1, "socket"); 84 85 memset(&mysin, 0, sizeof(struct sockaddr_in)); 86 mysin.sin_family = AF_INET; 87 mysin.sin_port = htons(port); 88 memcpy(&mysin.sin_addr, he->h_addr, sizeof(struct in_addr)); 89 90 if (connect(s, (struct sockaddr *)&mysin, sizeof(mysin)) == -1) 91 err(1, "connect"); 92 93 return s; 94 } 95 96 int 97 main(int argc, char *argv[]) 98 { 99 struct puffs9p p9p; 100 struct puffs_usermount *pu; 101 struct puffs_ops *pops; 102 struct puffs_node *pn_root; 103 mntoptparse_t mp; 104 char *srvhost; 105 const char *user; 106 unsigned short port; 107 int mntflags, pflags, lflags, ch; 108 int detach; 109 110 setprogname(argv[0]); 111 112 if (argc < 2) 113 usage(); 114 115 mntflags = pflags = lflags = 0; 116 detach = 1; 117 port = DEFPORT_9P; 118 user = DEFUSER_9P; 119 120 while ((ch = getopt(argc, argv, "o:p:su:")) != -1) { 121 switch (ch) { 122 case 'o': 123 mp = getmntopts(optarg, puffsmopts, &mntflags, &pflags); 124 if (mp == NULL) 125 err(1, "getmntopts"); 126 freemntopts(mp); 127 break; 128 case 'p': 129 port = atoi(optarg); 130 break; 131 case 's': 132 lflags |= PUFFSLOOP_NODAEMON; 133 break; 134 case 'u': 135 user = optarg; 136 break; 137 default: 138 usage(); 139 /*NOTREACHED*/ 140 } 141 } 142 argc -= optind; 143 argv += optind; 144 145 if (argc != 2) 146 usage(); 147 148 srvhost = argv[0]; 149 150 if (pflags & PUFFS_FLAG_OPDUMP) 151 lflags |= PUFFSLOOP_NODAEMON; 152 pflags |= PUFFS_KFLAG_WTCACHE | PUFFS_KFLAG_IAONDEMAND; 153 154 PUFFSOP_INIT(pops); 155 156 PUFFSOP_SET(pops, puffs9p, fs, unmount); 157 PUFFSOP_SETFSNOP(pops, sync); 158 PUFFSOP_SETFSNOP(pops, statvfs); 159 160 PUFFSOP_SET(pops, puffs9p, node, lookup); 161 PUFFSOP_SET(pops, puffs9p, node, readdir); 162 PUFFSOP_SET(pops, puffs9p, node, getattr); 163 PUFFSOP_SET(pops, puffs9p, node, setattr); 164 PUFFSOP_SET(pops, puffs9p, node, create); 165 PUFFSOP_SET(pops, puffs9p, node, open); 166 PUFFSOP_SET(pops, puffs9p, node, mkdir); 167 PUFFSOP_SET(pops, puffs9p, node, remove); 168 PUFFSOP_SET(pops, puffs9p, node, rmdir); 169 PUFFSOP_SET(pops, puffs9p, node, read); 170 PUFFSOP_SET(pops, puffs9p, node, write); 171 PUFFSOP_SET(pops, puffs9p, node, rename); 172 PUFFSOP_SET(pops, puffs9p, node, inactive); 173 PUFFSOP_SET(pops, puffs9p, node, reclaim); 174 #if 0 175 PUFFSOP_SET(pops, puffs9p, node, mknod); 176 #endif 177 178 memset(&p9p, 0, sizeof(p9p)); 179 p9p.maxreq = P9P_DEFREQLEN; 180 p9p.nextfid = 1; 181 182 p9p.servsock = serverconnect(srvhost, port); 183 pu = puffs_init(pops, "9P", &p9p, pflags); 184 if (pu == NULL) 185 err(1, "puffs_init"); 186 187 if ((pn_root = p9p_handshake(pu, user)) == NULL) { 188 puffs_exit(pu, 1); 189 exit(1); 190 } 191 192 if (puffs_setblockingmode(pu, PUFFSDEV_NONBLOCK) == -1) 193 err(1, "setblockingmode"); 194 195 puffs_framev_init(pu, p9pbuf_read, p9pbuf_write, p9pbuf_cmp, 196 puffs_framev_unmountonclose); 197 if (puffs_framev_addfd(pu, p9p.servsock, 198 PUFFS_FBIO_READ | PUFFS_FBIO_WRITE) == -1) 199 err(1, "puffs_framebuf_addfd"); 200 201 if (puffs_mount(pu, argv[1], mntflags, pn_root) == -1) 202 err(1, "puffs_mount"); 203 204 return puffs_mainloop(pu, lflags); 205 } 206
Indexes created Tue Sep 30 11:09:46 GMT 2025