[dragonfly.git] / sbin / hammer2 / main.c

/*
 * Copyright (c) 2011-2012 The DragonFly Project.  All rights reserved.
 *
 * This code is derived from software contributed to The DragonFly Project
 * by Matthew Dillon <dillon@dragonflybsd.org>
 * by Venkatesh Srinivas <vsrinivas@dragonflybsd.org>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 * 3. Neither the name of The DragonFly Project nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific, prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include "hammer2.h"

static void usage(int code);

int DebugOpt;
int VerboseOpt;
int QuietOpt;
int NormalExit = 1;	/* if set to 0 main() has to pthread_exit() */

int
main(int ac, char **av)
{
	const char *sel_path = NULL;
	const char *uuid_str = NULL;
	const char *arg;
	int pfs_type = HAMMER2_PFSTYPE_NONE;
	int all_opt = 0;
	int ecode = 0;
	int ch;

	srandomdev();
	signal(SIGPIPE, SIG_IGN);

	/*
	 * Core options
	 */
	while ((ch = getopt(ac, av, "adqs:t:u:v")) != -1) {
		switch(ch) {
		case 'a':
			all_opt = 1;
			break;
		case 'd':
			DebugOpt = 1;
			break;
		case 's':
			sel_path = optarg;
			break;
		case 't':
			/*
			 * set node type for mkpfs
			 */
			if (strcasecmp(optarg, "ADMIN") == 0) {
				pfs_type = HAMMER2_PFSTYPE_ADMIN;
			} else if (strcasecmp(optarg, "CACHE") == 0) {
				pfs_type = HAMMER2_PFSTYPE_CACHE;
			} else if (strcasecmp(optarg, "COPY") == 0) {
				pfs_type = HAMMER2_PFSTYPE_COPY;
			} else if (strcasecmp(optarg, "SLAVE") == 0) {
				pfs_type = HAMMER2_PFSTYPE_SLAVE;
			} else if (strcasecmp(optarg, "SOFT_SLAVE") == 0) {
				pfs_type = HAMMER2_PFSTYPE_SOFT_SLAVE;
			} else if (strcasecmp(optarg, "SOFT_MASTER") == 0) {
				pfs_type = HAMMER2_PFSTYPE_SOFT_MASTER;
			} else if (strcasecmp(optarg, "MASTER") == 0) {
				pfs_type = HAMMER2_PFSTYPE_MASTER;
			} else {
				fprintf(stderr, "-t: Unrecognized node type\n");
				usage(1);
			}
			break;
		case 'u':
			/*
			 * set uuid for mkpfs, else one will be generated
			 * (required for all except the MASTER node_type)
			 */
			uuid_str = optarg;
			break;
		case 'v':
			if (QuietOpt)
				--QuietOpt;
			else
				++VerboseOpt;
			break;
		case 'q':
			if (VerboseOpt)
				--VerboseOpt;
			else
				++QuietOpt;
			break;
		default:
			fprintf(stderr, "Unknown option: %c\n", ch);
			usage(1);
			/* not reached */
			break;
		}
	}

	/*
	 * Adjust, then process the command
	 */
	ac -= optind;
	av += optind;
	if (ac < 1) {
		fprintf(stderr, "Missing command\n");
		usage(1);
		/* not reached */
	}

	if (strcmp(av[0], "connect") == 0) {
		/*
		 * Add cluster connection
		 */
		if (ac < 2) {
			fprintf(stderr, "connect: missing argument\n");
			usage(1);
		}
		ecode = cmd_remote_connect(sel_path, av[1]);
	} else if (strcmp(av[0], "disconnect") == 0) {
		/*
		 * Remove cluster connection
		 */
		if (ac < 2) {
			fprintf(stderr, "disconnect: missing argument\n");
			usage(1);
		}
		ecode = cmd_remote_disconnect(sel_path, av[1]);
	} else if (strcmp(av[0], "status") == 0) {
		/*
		 * Get status of PFS and its connections (-a for all PFSs)
		 */
		ecode = cmd_remote_status(sel_path, all_opt);
	} else if (strcmp(av[0], "pfs-clid") == 0) {
		/*
		 * Print cluster id (uuid) for specific PFS
		 */
		if (ac < 2) {
			fprintf(stderr, "pfs-clid: requires name\n");
			usage(1);
		}
		ecode = cmd_pfs_getid(sel_path, av[1], 0);
	} else if (strcmp(av[0], "pfs-fsid") == 0) {
		/*
		 * Print private id (uuid) for specific PFS
		 */
		if (ac < 2) {
			fprintf(stderr, "pfs-fsid: requires name\n");
			usage(1);
		}
		ecode = cmd_pfs_getid(sel_path, av[1], 1);
	} else if (strcmp(av[0], "pfs-list") == 0) {
		/*
		 * List all PFSs
		 */
		ecode = cmd_pfs_list(sel_path);
	} else if (strcmp(av[0], "pfs-create") == 0) {
		/*
		 * Create new PFS using pfs_type
		 */
		if (ac < 2) {
			fprintf(stderr, "pfs-create: requires name\n");
			usage(1);
		}
		ecode = cmd_pfs_create(sel_path, av[1], pfs_type, uuid_str);
	} else if (strcmp(av[0], "pfs-delete") == 0) {
		/*
		 * Delete a PFS by name
		 */
		if (ac < 2) {
			fprintf(stderr, "pfs-delete: requires name\n");
			usage(1);
		}
		ecode = cmd_pfs_delete(sel_path, av[1]);
	} else if (strcmp(av[0], "snapshot") == 0) {
		/*
		 * Create snapshot with optional pfs-type and optional
		 * label override.
		 */
	} else if (strcmp(av[0], "service") == 0) {
		/*
		 * Start the service daemon.  This daemon accepts
		 * connections from local and remote clients, handles
		 * the security handshake, and manages the core messaging
		 * protocol.
		 */
		ecode = cmd_service();
	} else if (strcmp(av[0], "stat") == 0) {
		ecode = cmd_stat(ac - 1, (const char **)&av[1]);
	} else if (strcmp(av[0], "leaf") == 0) {
		/*
		 * Start the management daemon for a specific PFS.
		 *
		 * This will typically connect to the local master node
		 * daemon, register the PFS, and then pass its side of
		 * the socket descriptor to the kernel HAMMER2 VFS via an
		 * ioctl().  The process and/or thread context remains in the
		 * kernel until the PFS is unmounted or the connection is
		 * lost, then returns from the ioctl.
		 *
		 * It is possible to connect directly to a remote master node
		 * instead of the local master node in situations where
		 * encryption is not desired or no local master node is
		 * desired.  This is not recommended because it represents
		 * a single point of failure for the PFS's communications.
		 *
		 * Direct kernel<->kernel communication between HAMMER2 VFSs
		 * is theoretically possible for directly-connected
		 * registrations (i.e. where the spanning tree is degenerate),
		 * but not recommended.  We specifically try to reduce the
		 * complexity of the HAMMER2 VFS kernel code.
		 */
		ecode = cmd_leaf(sel_path);
	} else if (strcmp(av[0], "shell") == 0) {
		/*
		 * Connect to the command line monitor in the hammer2 master
		 * node for the machine using HAMMER2_DBG_SHELL messages.
		 */
		ecode = cmd_shell((ac < 2) ? NULL : av[1]);
	} else if (strcmp(av[0], "rsainit") == 0) {
		/*
		 * Initialize a RSA keypair.  If no target directory is
		 * specified we default to "/etc/hammer2".
		 */
		arg = (ac < 2) ? HAMMER2_DEFAULT_DIR : av[1];
		ecode = cmd_rsainit(arg);
	} else if (strcmp(av[0], "rsaenc") == 0) {
		/*
		 * Encrypt the input symmetrically by running it through
		 * the specified public and/or private key files.
		 *
		 * If no key files are specified data is encoded using
		 * "/etc/hammer2/rsa.pub".
		 *
		 * WARNING: no padding is added, data stream must contain
		 *	    random padding for this to be secure.
		 *
		 * Used for debugging only
		 */
		if (ac == 1) {
			const char *rsapath = HAMMER2_DEFAULT_DIR "/rsa.pub";
			ecode = cmd_rsaenc(&rsapath, 1);
		} else {
			ecode = cmd_rsaenc((const char **)&av[1], ac - 1);
		}
	} else if (strcmp(av[0], "rsadec") == 0) {
		/*
		 * Decrypt the input symmetrically by running it through
		 * the specified public and/or private key files.
		 *
		 * If no key files are specified data is decoded using
		 * "/etc/hammer2/rsa.prv".
		 *
		 * WARNING: no padding is added, data stream must contain
		 *	    random padding for this to be secure.
		 *
		 * Used for debugging only
		 */
		if (ac == 1) {
			const char *rsapath = HAMMER2_DEFAULT_DIR "/rsa.prv";
			ecode = cmd_rsadec(&rsapath, 1);
		} else {
			ecode = cmd_rsadec((const char **)&av[1], ac - 1);
		}
	} else if (strcmp(av[0], "show") == 0) {
		/*
		 * Raw dump of filesystem.  Use -v to check all crc's, and
		 * -vv to dump bulk file data.
		 */
		if (ac != 2) {
			fprintf(stderr, "show: requires device path\n");
			usage(1);
		} else {
			cmd_show(av[1]);
		}
	} else {
		fprintf(stderr, "Unrecognized command: %s\n", av[0]);
		usage(1);
	}

	/*
	 * In DebugMode we may wind up starting several pthreads in the
	 * original process, in which case we have to let them run and
	 * not actually exit.
	 */
	if (NormalExit) {
		return (ecode);
	} else {
		pthread_exit(NULL);
		_exit(2);	/* NOT REACHED */
	}
}

static
void
usage(int code)
{
	fprintf(stderr,
		"hammer2 [-s path] command...\n"
		"    -s path            Select filesystem\n"
		"    -t type            PFS type for pfs-create\n"
		"    -u uuid            uuid for pfs-create\n"
		"\n"
		"    connect <target>   Add cluster link\n"
		"    disconnect <target> Del cluster link\n"
		"    status             Report cluster status\n"
		"    pfs-list           List PFSs\n"
		"    pfs-clid <label>   Print cluster id for specific PFS\n"
		"    pfs-fsid <label>   Print private id for specific PFS\n"
		"    pfs-create <label> Create a PFS\n"
		"    pfs-delete <label> Destroy a PFS\n"
		"    snapshot           Snapshot a PFS\n"
		"    service            Start service daemon\n"
		"    stat [<path>]	Return inode quota & config\n"
		"    leaf               Start pfs leaf daemon\n"
		"    shell [<host>]     Connect to debug shell\n"
		"    rsainit            Initialize rsa fields\n"
		"    show devpath       Raw hammer2 media dump\n"
	);
	exit(code);
}
Commit	Line	Data
2910a90c MD	1	/*
	2	* Copyright (c) 2011-2012 The DragonFly Project. All rights reserved.
	3	*
	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>
	7	*
	8	* Redistribution and use in source and binary forms, with or without
	9	* modification, are permitted provided that the following conditions
	10	* are met:
	11	*
	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
	17	* distribution.
	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.
	21	*
	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,
	27	* INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
	28	* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	29	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
	30	* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
	31	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
	32	* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	33	* SUCH DAMAGE.
	34	*/
	35
	36	#include "hammer2.h"
	37
	38	static void usage(int code);
	39
5ba65e34	40	int DebugOpt;
bd878fc9	41	int VerboseOpt;
9b8b748f	42	int QuietOpt;
5ba65e34 MD	43	int NormalExit = 1; /* if set to 0 main() has to pthread_exit() */
5ba65e34 MD	44
2910a90c MD	45	int
	46	main(int ac, char **av)
	47	{
5ba65e34	48	const char *sel_path = NULL;
2910a90c	49	const char *uuid_str = NULL;
62efe6ec	50	const char *arg;
2910a90c	51	int pfs_type = HAMMER2_PFSTYPE_NONE;
2910a90c MD	52	int all_opt = 0;
	53	int ecode = 0;
	54	int ch;
	55
62efe6ec	56	srandomdev();
7dc0f844	57	signal(SIGPIPE, SIG_IGN);
62efe6ec	58
2910a90c MD	59	/*
	60	* Core options
	61	*/
bd878fc9	62	while ((ch = getopt(ac, av, "adqs:t:u:v")) != -1) {
2910a90c MD	63	switch(ch) {
	64	case 'a':
	65	all_opt = 1;
	66	break;
bd878fc9 MD	67	case 'd':
	68	DebugOpt = 1;
	69	break;
2910a90c MD	70	case 's':
	71	sel_path = optarg;
	72	break;
	73	case 't':
	74	/*
	75	* set node type for mkpfs
	76	*/
	77	if (strcasecmp(optarg, "ADMIN") == 0) {
	78	pfs_type = HAMMER2_PFSTYPE_ADMIN;
	79	} else if (strcasecmp(optarg, "CACHE") == 0) {
	80	pfs_type = HAMMER2_PFSTYPE_CACHE;
	81	} else if (strcasecmp(optarg, "COPY") == 0) {
	82	pfs_type = HAMMER2_PFSTYPE_COPY;
	83	} else if (strcasecmp(optarg, "SLAVE") == 0) {
	84	pfs_type = HAMMER2_PFSTYPE_SLAVE;
	85	} else if (strcasecmp(optarg, "SOFT_SLAVE") == 0) {
	86	pfs_type = HAMMER2_PFSTYPE_SOFT_SLAVE;
	87	} else if (strcasecmp(optarg, "SOFT_MASTER") == 0) {
	88	pfs_type = HAMMER2_PFSTYPE_SOFT_MASTER;
	89	} else if (strcasecmp(optarg, "MASTER") == 0) {
	90	pfs_type = HAMMER2_PFSTYPE_MASTER;
	91	} else {
	92	fprintf(stderr, "-t: Unrecognized node type\n");
	93	usage(1);
	94	}
	95	break;
	96	case 'u':
	97	/*
	98	* set uuid for mkpfs, else one will be generated
	99	* (required for all except the MASTER node_type)
	100	*/
	101	uuid_str = optarg;
	102	break;
bd878fc9	103	case 'v':
9b8b748f MD	104	if (QuietOpt)
	105	--QuietOpt;
	106	else
	107	++VerboseOpt;
	108	break;
	109	case 'q':
	110	if (VerboseOpt)
	111	--VerboseOpt;
	112	else
	113	++QuietOpt;
5ba65e34	114	break;
2910a90c MD	115	default:
	116	fprintf(stderr, "Unknown option: %c\n", ch);
	117	usage(1);
	118	/* not reached */
	119	break;
	120	}
	121	}
	122
	123	/*
	124	* Adjust, then process the command
	125	*/
	126	ac -= optind;
	127	av += optind;
	128	if (ac < 1) {
	129	fprintf(stderr, "Missing command\n");
	130	usage(1);
	131	/* not reached */
	132	}
	133
	134	if (strcmp(av[0], "connect") == 0) {
	135	/*
	136	* Add cluster connection
	137	*/
	138	if (ac < 2) {
	139	fprintf(stderr, "connect: missing argument\n");
	140	usage(1);
	141	}
	142	ecode = cmd_remote_connect(sel_path, av[1]);
	143	} else if (strcmp(av[0], "disconnect") == 0) {
	144	/*
	145	* Remove cluster connection
	146	*/
	147	if (ac < 2) {
	148	fprintf(stderr, "disconnect: missing argument\n");
	149	usage(1);
	150	}
	151	ecode = cmd_remote_disconnect(sel_path, av[1]);
	152	} else if (strcmp(av[0], "status") == 0) {
	153	/*
	154	* Get status of PFS and its connections (-a for all PFSs)
	155	*/
	156	ecode = cmd_remote_status(sel_path, all_opt);
7dc0f844 MD	157	} else if (strcmp(av[0], "pfs-clid") == 0) {
	158	/*
	159	* Print cluster id (uuid) for specific PFS
	160	*/
	161	if (ac < 2) {
	162	fprintf(stderr, "pfs-clid: requires name\n");
	163	usage(1);
	164	}
	165	ecode = cmd_pfs_getid(sel_path, av[1], 0);
	166	} else if (strcmp(av[0], "pfs-fsid") == 0) {
	167	/*
	168	* Print private id (uuid) for specific PFS
	169	*/
	170	if (ac < 2) {
	171	fprintf(stderr, "pfs-fsid: requires name\n");
	172	usage(1);
	173	}
	174	ecode = cmd_pfs_getid(sel_path, av[1], 1);
bd878fc9	175	} else if (strcmp(av[0], "pfs-list") == 0) {
ae183399 MD	176	/*
	177	* List all PFSs
	178	*/
	179	ecode = cmd_pfs_list(sel_path);
bd878fc9	180	} else if (strcmp(av[0], "pfs-create") == 0) {
2910a90c MD	181	/*
	182	* Create new PFS using pfs_type
	183	*/
ae183399	184	if (ac < 2) {
bd878fc9	185	fprintf(stderr, "pfs-create: requires name\n");
ae183399 MD	186	usage(1);
	187	}
	188	ecode = cmd_pfs_create(sel_path, av[1], pfs_type, uuid_str);
bd878fc9	189	} else if (strcmp(av[0], "pfs-delete") == 0) {
ae183399 MD	190	/*
	191	* Delete a PFS by name
	192	*/
	193	if (ac < 2) {
bd878fc9	194	fprintf(stderr, "pfs-delete: requires name\n");
ae183399 MD	195	usage(1);
	196	}
	197	ecode = cmd_pfs_delete(sel_path, av[1]);
2910a90c MD	198	} else if (strcmp(av[0], "snapshot") == 0) {
2910a90c MD	199	/*
bd878fc9	200	* Create snapshot with optional pfs-type and optional
2910a90c MD	201	* label override.
2910a90c MD	202	*/
62efe6ec	203	} else if (strcmp(av[0], "service") == 0) {
2910a90c	204	/*
62efe6ec MD	205	* Start the service daemon. This daemon accepts
	206	* connections from local and remote clients, handles
	207	* the security handshake, and manages the core messaging
	208	* protocol.
2910a90c	209	*/
62efe6ec	210	ecode = cmd_service();
ad7cf8ea MD	211	} else if (strcmp(av[0], "stat") == 0) {
ad7cf8ea MD	212	ecode = cmd_stat(ac - 1, (const char **)&av[1]);
9ab15106 MD	213	} else if (strcmp(av[0], "leaf") == 0) {
	214	/*
	215	* Start the management daemon for a specific PFS.
	216	*
	217	* This will typically connect to the local master node
	218	* daemon, register the PFS, and then pass its side of
	219	* the socket descriptor to the kernel HAMMER2 VFS via an
	220	* ioctl(). The process and/or thread context remains in the
	221	* kernel until the PFS is unmounted or the connection is
	222	* lost, then returns from the ioctl.
	223	*
	224	* It is possible to connect directly to a remote master node
	225	* instead of the local master node in situations where
	226	* encryption is not desired or no local master node is
	227	* desired. This is not recommended because it represents
	228	* a single point of failure for the PFS's communications.
	229	*
	230	* Direct kernel<->kernel communication between HAMMER2 VFSs
	231	* is theoretically possible for directly-connected
	232	* registrations (i.e. where the spanning tree is degenerate),
	233	* but not recommended. We specifically try to reduce the
	234	* complexity of the HAMMER2 VFS kernel code.
	235	*/
	236	ecode = cmd_leaf(sel_path);
bd878fc9	237	} else if (strcmp(av[0], "shell") == 0) {
9ab15106 MD	238	/*
	239	* Connect to the command line monitor in the hammer2 master
	240	* node for the machine using HAMMER2_DBG_SHELL messages.
	241	*/
bd878fc9	242	ecode = cmd_shell((ac < 2) ? NULL : av[1]);
62efe6ec MD	243	} else if (strcmp(av[0], "rsainit") == 0) {
	244	/*
	245	* Initialize a RSA keypair. If no target directory is
	246	* specified we default to "/etc/hammer2".
	247	*/
	248	arg = (ac < 2) ? HAMMER2_DEFAULT_DIR : av[1];
	249	ecode = cmd_rsainit(arg);
	250	} else if (strcmp(av[0], "rsaenc") == 0) {
	251	/*
	252	* Encrypt the input symmetrically by running it through
	253	* the specified public and/or private key files.
	254	*
	255	* If no key files are specified data is encoded using
	256	* "/etc/hammer2/rsa.pub".
	257	*
	258	* WARNING: no padding is added, data stream must contain
	259	* random padding for this to be secure.
	260	*
	261	* Used for debugging only
	262	*/
	263	if (ac == 1) {
	264	const char *rsapath = HAMMER2_DEFAULT_DIR "/rsa.pub";
	265	ecode = cmd_rsaenc(&rsapath, 1);
	266	} else {
	267	ecode = cmd_rsaenc((const char **)&av[1], ac - 1);
	268	}
	269	} else if (strcmp(av[0], "rsadec") == 0) {
	270	/*
	271	* Decrypt the input symmetrically by running it through
	272	* the specified public and/or private key files.
	273	*
	274	* If no key files are specified data is decoded using
	275	* "/etc/hammer2/rsa.prv".
	276	*
	277	* WARNING: no padding is added, data stream must contain
	278	* random padding for this to be secure.
	279	*
	280	* Used for debugging only
	281	*/
	282	if (ac == 1) {
	283	const char *rsapath = HAMMER2_DEFAULT_DIR "/rsa.prv";
	284	ecode = cmd_rsadec(&rsapath, 1);
	285	} else {
	286	ecode = cmd_rsadec((const char **)&av[1], ac - 1);
	287	}
bd878fc9 MD	288	} else if (strcmp(av[0], "show") == 0) {
	289	/*
	290	* Raw dump of filesystem. Use -v to check all crc's, and
	291	* -vv to dump bulk file data.
	292	*/
	293	if (ac != 2) {
	294	fprintf(stderr, "show: requires device path\n");
	295	usage(1);
	296	} else {
	297	cmd_show(av[1]);
	298	}
2910a90c MD	299	} else {
	300	fprintf(stderr, "Unrecognized command: %s\n", av[0]);
	301	usage(1);
	302	}
5ba65e34 MD	303
	304	/*
	305	* In DebugMode we may wind up starting several pthreads in the
	306	* original process, in which case we have to let them run and
	307	* not actually exit.
	308	*/
	309	if (NormalExit) {
	310	return (ecode);
	311	} else {
	312	pthread_exit(NULL);
	313	_exit(2); /* NOT REACHED */
	314	}
2910a90c MD	315	}
	316
	317	static
	318	void
	319	usage(int code)
	320	{
	321	fprintf(stderr,
	322	"hammer2 [-s path] command...\n"
	323	" -s path Select filesystem\n"
bd878fc9 MD	324	" -t type PFS type for pfs-create\n"
	325	" -u uuid uuid for pfs-create\n"
	326	"\n"
	327	" connect <target> Add cluster link\n"
	328	" disconnect <target> Del cluster link\n"
	329	" status Report cluster status\n"
	330	" pfs-list List PFSs\n"
7dc0f844 MD	331	" pfs-clid <label> Print cluster id for specific PFS\n"
7dc0f844 MD	332	" pfs-fsid <label> Print private id for specific PFS\n"
bd878fc9 MD	333	" pfs-create <label> Create a PFS\n"
	334	" pfs-delete <label> Destroy a PFS\n"
	335	" snapshot Snapshot a PFS\n"
	336	" service Start service daemon\n"
ad7cf8ea	337	" stat [<path>] Return inode quota & config\n"
bd878fc9 MD	338	" leaf Start pfs leaf daemon\n"
	339	" shell [<host>] Connect to debug shell\n"
	340	" rsainit Initialize rsa fields\n"
	341	" show devpath Raw hammer2 media dump\n"
2910a90c MD	342	);
	343	exit(code);
	344	}