2 * Copyright (c) 2011-2012 The DragonFly Project. All rights reserved.
4 * This code is derived from software contributed to The DragonFly Project
5 * by Matthew Dillon <dillon@dragonflybsd.org>
6 * by Venkatesh Srinivas <vsrinivas@dragonflybsd.org>
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
18 * 3. Neither the name of The DragonFly Project nor the names of its
19 * contributors may be used to endorse or promote products derived
20 * from this software without specific, prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
25 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
26 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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35 #include <sys/types.h>
36 #include <sys/mount.h>
37 #include <sys/socket.h>
38 #include <netinet/in.h>
39 #include <vfs/hammer2/hammer2_mount.h>
46 static int cluster_connect(const char *volume);
49 * Usage: mount_hammer2 [volume] [mtpt]
52 main(int argc, char *argv[])
54 struct hammer2_mount_info info;
60 bzero(&info, sizeof(info));
66 error = getvfsbyname("hammer2", &vfc);
68 fprintf(stderr, "hammer2 vfs not loaded\n");
73 * Connect to the cluster controller. This handles both remote
74 * mounts and device cache/master/slave mounts.
76 * When doing remote mounts that are allowed to run in the background
77 * the mount program will fork, detach, print a message, and exit(0)
78 * the originator while retrying in the background.
80 info.cluster_fd = cluster_connect(argv[1]);
81 if (info.cluster_fd < 0) {
83 "hammer2_mount: cluster_connect(%s) failed\n",
91 info.volume = argv[1];
95 error = mount(vfc.vfc_name, mountpt, mount_flags, &info);
102 * XXX fork a backgrounded reconnector process to handle connection
110 * Connect to the cluster controller. We can connect to a local or remote
111 * cluster controller, depending. For a multi-node cluster we always want
112 * to connect to the local controller and let it maintain the connections
113 * to the multiple remote nodes.
117 cluster_connect(const char *volume __unused)
119 struct sockaddr_in lsin;
123 * This starts the hammer2 service if it isn't already running,
124 * so we can connect to it.
126 system("/sbin/hammer2 -q service");
129 * Connect us to the service but leave the rest to the kernel.
130 * If the connection is lost during the mount
132 if ((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
136 bzero(&lsin, sizeof(lsin));
137 lsin.sin_family = AF_INET;
138 lsin.sin_addr.s_addr = 0;
139 lsin.sin_port = htons(HAMMER2_LISTEN_PORT);
141 if (connect(fd, (struct sockaddr *)&lsin, sizeof(lsin)) < 0) {
143 fprintf(stderr, "mount_hammer2: unable to connect to "
144 "cluster controller\n");