[dragonfly.git] / sys / vfs / hammer2 / hammer2_ioctl.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.
 */
/*
 * Ioctl Functions.
 *
 * WARNING! The ioctl functions which manipulate the connection state need
 *	    to be able to run without deadlock on the volume's chain lock.
 *	    Most of these functions use a separate lock.
 */

#include "hammer2.h"

static int hammer2_ioctl_version_get(hammer2_inode_t *ip, void *data);
static int hammer2_ioctl_remote_get(hammer2_inode_t *ip, void *data);
static int hammer2_ioctl_remote_add(hammer2_inode_t *ip, void *data);
static int hammer2_ioctl_remote_del(hammer2_inode_t *ip, void *data);
static int hammer2_ioctl_remote_rep(hammer2_inode_t *ip, void *data);
static int hammer2_ioctl_socket_get(hammer2_inode_t *ip, void *data);
static int hammer2_ioctl_socket_set(hammer2_inode_t *ip, void *data);
static int hammer2_ioctl_pfs_get(hammer2_inode_t *ip, void *data);
static int hammer2_ioctl_pfs_create(hammer2_inode_t *ip, void *data);
static int hammer2_ioctl_pfs_delete(hammer2_inode_t *ip, void *data);
static int hammer2_ioctl_inode_get(hammer2_inode_t *ip, void *data);
static int hammer2_ioctl_inode_set(hammer2_inode_t *ip, void *data);

int
hammer2_ioctl(hammer2_inode_t *ip, u_long com, void *data, int fflag,
	      struct ucred *cred)
{
	int error;

	/*
	 * Standard root cred checks, will be selectively ignored below
	 * for ioctls that do not require root creds.
	 */
	error = priv_check_cred(cred, PRIV_HAMMER_IOCTL, 0);

	switch(com) {
	case HAMMER2IOC_VERSION_GET:
		error = hammer2_ioctl_version_get(ip, data);
		break;
	case HAMMER2IOC_REMOTE_GET:
		if (error == 0)
			error = hammer2_ioctl_remote_get(ip, data);
		break;
	case HAMMER2IOC_REMOTE_ADD:
		if (error == 0)
			error = hammer2_ioctl_remote_add(ip, data);
		break;
	case HAMMER2IOC_REMOTE_DEL:
		if (error == 0)
			error = hammer2_ioctl_remote_del(ip, data);
		break;
	case HAMMER2IOC_REMOTE_REP:
		if (error == 0)
			error = hammer2_ioctl_remote_rep(ip, data);
		break;
	case HAMMER2IOC_SOCKET_GET:
		if (error == 0)
			error = hammer2_ioctl_socket_get(ip, data);
		break;
	case HAMMER2IOC_SOCKET_SET:
		if (error == 0)
			error = hammer2_ioctl_socket_set(ip, data);
		break;
	case HAMMER2IOC_PFS_GET:
		if (error == 0)
			error = hammer2_ioctl_pfs_get(ip, data);
		break;
	case HAMMER2IOC_PFS_CREATE:
		if (error == 0)
			error = hammer2_ioctl_pfs_create(ip, data);
		break;
	case HAMMER2IOC_PFS_DELETE:
		if (error == 0)
			error = hammer2_ioctl_pfs_delete(ip, data);
		break;
	case HAMMER2IOC_INODE_GET:
		error = hammer2_ioctl_inode_get(ip, data);
		break;
	case HAMMER2IOC_INODE_SET:
		if (error == 0)
			error = hammer2_ioctl_inode_set(ip, data);
		break;
	default:
		error = EOPNOTSUPP;
		break;
	}
	return (error);
}

/*
 * Retrieve version and basic info
 */
static int
hammer2_ioctl_version_get(hammer2_inode_t *ip, void *data)
{
	hammer2_mount_t *hmp = ip->hmp;
	hammer2_ioc_version_t *version = data;

	version->version = hmp->voldata.version;
	return 0;
}

/*
 * Retrieve information about a remote
 */
static int
hammer2_ioctl_remote_get(hammer2_inode_t *ip, void *data)
{
	hammer2_mount_t *hmp = ip->hmp;
	hammer2_ioc_remote_t *remote = data;
	int copyid = remote->copyid;

	if (copyid < 0 || copyid >= HAMMER2_COPYID_COUNT)
		return (EINVAL);

	hammer2_voldata_lock(hmp);
	remote->copy1 = hmp->voldata.copyinfo[copyid];
	hammer2_voldata_unlock(hmp);

	/*
	 * Adjust nextid (GET only)
	 */
	while (++copyid < HAMMER2_COPYID_COUNT &&
	       hmp->voldata.copyinfo[copyid].copyid == 0) {
		++copyid;
	}
	if (copyid == HAMMER2_COPYID_COUNT)
		remote->nextid = -1;
	else
		remote->nextid = copyid;

	return(0);
}

/*
 * Add new remote entry
 */
static int
hammer2_ioctl_remote_add(hammer2_inode_t *ip, void *data)
{
	hammer2_mount_t *hmp = ip->hmp;
	hammer2_ioc_remote_t *remote = data;
	int copyid = remote->copyid;
	int error = 0;

	if (copyid >= HAMMER2_COPYID_COUNT)
		return (EINVAL);

	hammer2_voldata_lock(hmp);
	if (copyid < 0) {
		for (copyid = 1; copyid < HAMMER2_COPYID_COUNT; ++copyid) {
			if (hmp->voldata.copyinfo[copyid].copyid == 0)
				break;
		}
		if (copyid == HAMMER2_COPYID_COUNT) {
			error = ENOSPC;
			goto failed;
		}
	}
	hammer2_modify_volume(hmp);
	kprintf("copyid %d\n", copyid);
	remote->copy1.copyid = copyid;
	hmp->voldata.copyinfo[copyid] = remote->copy1;
failed:
	hammer2_voldata_unlock(hmp);
	return (error);
}

/*
 * Delete existing remote entry
 */
static int
hammer2_ioctl_remote_del(hammer2_inode_t *ip, void *data)
{
	hammer2_mount_t *hmp = ip->hmp;
	hammer2_ioc_remote_t *remote = data;
	int copyid = remote->copyid;
	int error = 0;

	if (copyid >= HAMMER2_COPYID_COUNT)
		return (EINVAL);
	remote->copy1.path[sizeof(remote->copy1.path) - 1] = 0;
	hammer2_voldata_lock(hmp);
	if (copyid < 0) {
		for (copyid = 1; copyid < HAMMER2_COPYID_COUNT; ++copyid) {
			if (hmp->voldata.copyinfo[copyid].copyid == 0)
				continue;
			if (strcmp(remote->copy1.path,
			    hmp->voldata.copyinfo[copyid].path) == 0) {
				break;
			}
		}
		if (copyid == HAMMER2_COPYID_COUNT) {
			error = ENOENT;
			goto failed;
		}
	}
	hammer2_modify_volume(hmp);
	hmp->voldata.copyinfo[copyid].copyid = 0;
failed:
	hammer2_voldata_unlock(hmp);
	return (error);
}

/*
 * Replace existing remote entry
 */
static int
hammer2_ioctl_remote_rep(hammer2_inode_t *ip, void *data)
{
	hammer2_mount_t *hmp = ip->hmp;
	hammer2_ioc_remote_t *remote = data;
	int copyid = remote->copyid;

	if (copyid < 0 || copyid >= HAMMER2_COPYID_COUNT)
		return (EINVAL);

	hammer2_voldata_lock(hmp);
	hammer2_voldata_unlock(hmp);

	return(0);
}

/*
 * Retrieve communications socket
 */
static int
hammer2_ioctl_socket_get(hammer2_inode_t *ip, void *data)
{
	return (EOPNOTSUPP);
}

/*
 * Set communications socket for connection
 */
static int
hammer2_ioctl_socket_set(hammer2_inode_t *ip, void *data)
{
	hammer2_mount_t *hmp = ip->hmp;
	hammer2_ioc_remote_t *remote = data;
	int copyid = remote->copyid;

	if (copyid < 0 || copyid >= HAMMER2_COPYID_COUNT)
		return (EINVAL);

	hammer2_voldata_lock(hmp);
	hammer2_voldata_unlock(hmp);

	return(0);
}

/*
 * Used to scan PFSs, which are directories under the super-root.
 */
static int
hammer2_ioctl_pfs_get(hammer2_inode_t *ip, void *data)
{
	hammer2_mount_t *hmp = ip->hmp;
	hammer2_ioc_pfs_t *pfs = data;
	hammer2_chain_t *parent;
	hammer2_chain_t *chain;
	hammer2_inode_t *xip;
	int error = 0;

	parent = hmp->schain;
	error = hammer2_chain_lock(hmp, parent, HAMMER2_RESOLVE_ALWAYS);
	if (error)
		goto done;

	/*
	 * Search for the first key or specific key.  Remember that keys
	 * can be returned in any order.
	 */
	if (pfs->name_key == 0) {
		chain = hammer2_chain_lookup(hmp, &parent,
					     0, (hammer2_key_t)-1, 0);
	} else {
		chain = hammer2_chain_lookup(hmp, &parent,
					     pfs->name_key, pfs->name_key, 0);
	}
	while (chain && chain->bref.type != HAMMER2_BREF_TYPE_INODE) {
		chain = hammer2_chain_next(hmp, &parent, chain,
				     0, (hammer2_key_t)-1, 0);
	}
	if (chain) {
		/*
		 * Load the data being returned by the ioctl.
		 */
		xip = chain->u.ip;
		pfs->name_key = xip->ip_data.name_key;
		pfs->pfs_type = xip->ip_data.pfs_type;
		pfs->pfs_clid = xip->ip_data.pfs_clid;
		pfs->pfs_fsid = xip->ip_data.pfs_fsid;
		KKASSERT(xip->ip_data.name_len < sizeof(pfs->name));
		bcopy(xip->ip_data.filename, pfs->name,
		      xip->ip_data.name_len);
		pfs->name[xip->ip_data.name_len] = 0;

		/*
		 * Calculate the next field
		 */
		do {
			chain = hammer2_chain_next(hmp, &parent, chain,
					     0, (hammer2_key_t)-1, 0);
		} while (chain && chain->bref.type != HAMMER2_BREF_TYPE_INODE);
		if (chain) {
			pfs->name_next = chain->u.ip->ip_data.name_key;
			hammer2_chain_unlock(hmp, chain);
		} else {
			pfs->name_next = (hammer2_key_t)-1;
		}
	} else {
		pfs->name_next = (hammer2_key_t)-1;
		error = ENOENT;
	}
done:
	hammer2_chain_unlock(hmp, parent);
	return (error);
}

/*
 * Create a new PFS under the super-root
 */
static int
hammer2_ioctl_pfs_create(hammer2_inode_t *ip, void *data)
{
	hammer2_mount_t *hmp = ip->hmp;
	hammer2_ioc_pfs_t *pfs = data;
	hammer2_inode_t *nip = NULL;
	int error;

	pfs->name[sizeof(pfs->name) - 1] = 0;	/* ensure 0-termination */
	error = hammer2_inode_create(hmp->schain->u.ip, NULL, NULL,
				     pfs->name, strlen(pfs->name),
				     &nip);
	if (error == 0) {
		hammer2_chain_modify(hmp, &nip->chain, 0);
		nip->ip_data.pfs_type = pfs->pfs_type;
		nip->ip_data.pfs_clid = pfs->pfs_clid;
		nip->ip_data.pfs_fsid = pfs->pfs_fsid;
		hammer2_chain_unlock(hmp, &nip->chain);
	}
	return (error);
}

/*
 * Destroy an existing PFS under the super-root
 */
static int
hammer2_ioctl_pfs_delete(hammer2_inode_t *ip, void *data)
{
	hammer2_mount_t *hmp = ip->hmp;
	hammer2_ioc_pfs_t *pfs = data;
	int error;

	error = hammer2_unlink_file(hmp->schain->u.ip,
				    pfs->name, strlen(pfs->name),
				    0, NULL);
	return (error);
}

/*
 * Retrieve the raw inode structure
 */
static int
hammer2_ioctl_inode_get(hammer2_inode_t *ip, void *data)
{
	hammer2_ioc_inode_t *ino = data;

	hammer2_inode_lock_sh(ip);
	ino->ip_data = ip->ip_data;
	ino->kdata = ip;
	hammer2_inode_unlock_sh(ip);
	return (0);
}

static int
hammer2_ioctl_inode_set(hammer2_inode_t *ip, void *data)
{
	hammer2_ioc_inode_t *ino = data;
	int error = EINVAL;

	hammer2_inode_lock_ex(ip);
	if (ino->flags & HAMMER2IOC_INODE_FLAG_IQUOTA) {
	}
	if (ino->flags & HAMMER2IOC_INODE_FLAG_DQUOTA) {
	}
	if (ino->flags & HAMMER2IOC_INODE_FLAG_COPIES) {
	}
	hammer2_inode_unlock_ex(ip);
	return (error);
}
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	* Ioctl Functions.
	37	*
	38	* WARNING! The ioctl functions which manipulate the connection state need
	39	* to be able to run without deadlock on the volume's chain lock.
	40	* Most of these functions use a separate lock.
	41	*/
	42
	43	#include "hammer2.h"
	44
ae183399 MD	45	static int hammer2_ioctl_version_get(hammer2_inode_t ip, void data);
	46	static int hammer2_ioctl_remote_get(hammer2_inode_t ip, void data);
	47	static int hammer2_ioctl_remote_add(hammer2_inode_t ip, void data);
	48	static int hammer2_ioctl_remote_del(hammer2_inode_t ip, void data);
	49	static int hammer2_ioctl_remote_rep(hammer2_inode_t ip, void data);
	50	static int hammer2_ioctl_socket_get(hammer2_inode_t ip, void data);
	51	static int hammer2_ioctl_socket_set(hammer2_inode_t ip, void data);
	52	static int hammer2_ioctl_pfs_get(hammer2_inode_t ip, void data);
	53	static int hammer2_ioctl_pfs_create(hammer2_inode_t ip, void data);
	54	static int hammer2_ioctl_pfs_delete(hammer2_inode_t ip, void data);
344d4f82 MD	55	static int hammer2_ioctl_inode_get(hammer2_inode_t ip, void data);
344d4f82 MD	56	static int hammer2_ioctl_inode_set(hammer2_inode_t ip, void data);
2910a90c MD	57
	58	int
	59	hammer2_ioctl(hammer2_inode_t ip, u_long com, void data, int fflag,
	60	struct ucred *cred)
	61	{
	62	int error;
	63
	64	/*
	65	* Standard root cred checks, will be selectively ignored below
	66	* for ioctls that do not require root creds.
	67	*/
	68	error = priv_check_cred(cred, PRIV_HAMMER_IOCTL, 0);
	69
	70	switch(com) {
ae183399 MD	71	case HAMMER2IOC_VERSION_GET:
ae183399 MD	72	error = hammer2_ioctl_version_get(ip, data);
2910a90c	73	break;
ae183399	74	case HAMMER2IOC_REMOTE_GET:
2910a90c	75	if (error == 0)
ae183399	76	error = hammer2_ioctl_remote_get(ip, data);
2910a90c	77	break;
ae183399	78	case HAMMER2IOC_REMOTE_ADD:
2910a90c	79	if (error == 0)
ae183399	80	error = hammer2_ioctl_remote_add(ip, data);
2910a90c	81	break;
ae183399	82	case HAMMER2IOC_REMOTE_DEL:
2910a90c	83	if (error == 0)
ae183399	84	error = hammer2_ioctl_remote_del(ip, data);
2910a90c	85	break;
ae183399	86	case HAMMER2IOC_REMOTE_REP:
2910a90c	87	if (error == 0)
ae183399	88	error = hammer2_ioctl_remote_rep(ip, data);
2910a90c	89	break;
ae183399	90	case HAMMER2IOC_SOCKET_GET:
2910a90c	91	if (error == 0)
ae183399	92	error = hammer2_ioctl_socket_get(ip, data);
2910a90c	93	break;
ae183399 MD	94	case HAMMER2IOC_SOCKET_SET:
	95	if (error == 0)
	96	error = hammer2_ioctl_socket_set(ip, data);
	97	break;
	98	case HAMMER2IOC_PFS_GET:
2910a90c	99	if (error == 0)
ae183399 MD	100	error = hammer2_ioctl_pfs_get(ip, data);
	101	break;
	102	case HAMMER2IOC_PFS_CREATE:
	103	if (error == 0)
	104	error = hammer2_ioctl_pfs_create(ip, data);
	105	break;
	106	case HAMMER2IOC_PFS_DELETE:
	107	if (error == 0)
	108	error = hammer2_ioctl_pfs_delete(ip, data);
2910a90c	109	break;
344d4f82 MD	110	case HAMMER2IOC_INODE_GET:
	111	error = hammer2_ioctl_inode_get(ip, data);
	112	break;
	113	case HAMMER2IOC_INODE_SET:
	114	if (error == 0)
	115	error = hammer2_ioctl_inode_set(ip, data);
	116	break;
2910a90c MD	117	default:
	118	error = EOPNOTSUPP;
	119	break;
	120	}
	121	return (error);
	122	}
	123
	124	/*
	125	* Retrieve version and basic info
	126	*/
	127	static int
ae183399	128	hammer2_ioctl_version_get(hammer2_inode_t ip, void data)
2910a90c MD	129	{
	130	hammer2_mount_t *hmp = ip->hmp;
	131	hammer2_ioc_version_t *version = data;
	132
	133	version->version = hmp->voldata.version;
	134	return 0;
	135	}
	136
	137	/*
	138	* Retrieve information about a remote
	139	*/
	140	static int
ae183399	141	hammer2_ioctl_remote_get(hammer2_inode_t ip, void data)
2910a90c MD	142	{
	143	hammer2_mount_t *hmp = ip->hmp;
	144	hammer2_ioc_remote_t *remote = data;
	145	int copyid = remote->copyid;
	146
	147	if (copyid < 0 \|\| copyid >= HAMMER2_COPYID_COUNT)
	148	return (EINVAL);
	149
	150	hammer2_voldata_lock(hmp);
	151	remote->copy1 = hmp->voldata.copyinfo[copyid];
	152	hammer2_voldata_unlock(hmp);
	153
	154	/*
	155	* Adjust nextid (GET only)
	156	*/
	157	while (++copyid < HAMMER2_COPYID_COUNT &&
	158	hmp->voldata.copyinfo[copyid].copyid == 0) {
	159	++copyid;
	160	}
	161	if (copyid == HAMMER2_COPYID_COUNT)
	162	remote->nextid = -1;
	163	else
	164	remote->nextid = copyid;
	165
	166	return(0);
	167	}
	168
	169	/*
	170	* Add new remote entry
	171	*/
	172	static int
ae183399	173	hammer2_ioctl_remote_add(hammer2_inode_t ip, void data)
2910a90c MD	174	{
	175	hammer2_mount_t *hmp = ip->hmp;
	176	hammer2_ioc_remote_t *remote = data;
	177	int copyid = remote->copyid;
	178	int error = 0;
	179
	180	if (copyid >= HAMMER2_COPYID_COUNT)
	181	return (EINVAL);
	182
	183	hammer2_voldata_lock(hmp);
	184	if (copyid < 0) {
	185	for (copyid = 1; copyid < HAMMER2_COPYID_COUNT; ++copyid) {
	186	if (hmp->voldata.copyinfo[copyid].copyid == 0)
	187	break;
	188	}
	189	if (copyid == HAMMER2_COPYID_COUNT) {
	190	error = ENOSPC;
	191	goto failed;
	192	}
	193	}
	194	hammer2_modify_volume(hmp);
	195	kprintf("copyid %d\n", copyid);
	196	remote->copy1.copyid = copyid;
	197	hmp->voldata.copyinfo[copyid] = remote->copy1;
	198	failed:
	199	hammer2_voldata_unlock(hmp);
	200	return (error);
	201	}
	202
	203	/*
	204	* Delete existing remote entry
	205	*/
	206	static int
ae183399	207	hammer2_ioctl_remote_del(hammer2_inode_t ip, void data)
2910a90c MD	208	{
	209	hammer2_mount_t *hmp = ip->hmp;
	210	hammer2_ioc_remote_t *remote = data;
	211	int copyid = remote->copyid;
	212	int error = 0;
	213
	214	if (copyid >= HAMMER2_COPYID_COUNT)
	215	return (EINVAL);
	216	remote->copy1.path[sizeof(remote->copy1.path) - 1] = 0;
	217	hammer2_voldata_lock(hmp);
	218	if (copyid < 0) {
	219	for (copyid = 1; copyid < HAMMER2_COPYID_COUNT; ++copyid) {
	220	if (hmp->voldata.copyinfo[copyid].copyid == 0)
	221	continue;
	222	if (strcmp(remote->copy1.path,
	223	hmp->voldata.copyinfo[copyid].path) == 0) {
	224	break;
	225	}
	226	}
	227	if (copyid == HAMMER2_COPYID_COUNT) {
	228	error = ENOENT;
	229	goto failed;
	230	}
	231	}
	232	hammer2_modify_volume(hmp);
	233	hmp->voldata.copyinfo[copyid].copyid = 0;
	234	failed:
	235	hammer2_voldata_unlock(hmp);
	236	return (error);
	237	}
	238
	239	/*
	240	* Replace existing remote entry
	241	*/
	242	static int
ae183399	243	hammer2_ioctl_remote_rep(hammer2_inode_t ip, void data)
2910a90c MD	244	{
	245	hammer2_mount_t *hmp = ip->hmp;
	246	hammer2_ioc_remote_t *remote = data;
	247	int copyid = remote->copyid;
	248
	249	if (copyid < 0 \|\| copyid >= HAMMER2_COPYID_COUNT)
	250	return (EINVAL);
	251
	252	hammer2_voldata_lock(hmp);
	253	hammer2_voldata_unlock(hmp);
	254
	255	return(0);
	256	}
	257
	258	/*
	259	* Retrieve communications socket
	260	*/
	261	static int
ae183399	262	hammer2_ioctl_socket_get(hammer2_inode_t ip, void data)
2910a90c MD	263	{
	264	return (EOPNOTSUPP);
	265	}
	266
	267	/*
	268	* Set communications socket for connection
	269	*/
	270	static int
ae183399	271	hammer2_ioctl_socket_set(hammer2_inode_t ip, void data)
2910a90c MD	272	{
	273	hammer2_mount_t *hmp = ip->hmp;
	274	hammer2_ioc_remote_t *remote = data;
	275	int copyid = remote->copyid;
	276
	277	if (copyid < 0 \|\| copyid >= HAMMER2_COPYID_COUNT)
	278	return (EINVAL);
	279
	280	hammer2_voldata_lock(hmp);
	281	hammer2_voldata_unlock(hmp);
	282
	283	return(0);
	284	}
ae183399 MD	285
	286	/*
	287	* Used to scan PFSs, which are directories under the super-root.
	288	*/
	289	static int
	290	hammer2_ioctl_pfs_get(hammer2_inode_t ip, void data)
	291	{
	292	hammer2_mount_t *hmp = ip->hmp;
	293	hammer2_ioc_pfs_t *pfs = data;
	294	hammer2_chain_t *parent;
	295	hammer2_chain_t *chain;
	296	hammer2_inode_t *xip;
	297	int error = 0;
	298
	299	parent = hmp->schain;
	300	error = hammer2_chain_lock(hmp, parent, HAMMER2_RESOLVE_ALWAYS);
	301	if (error)
	302	goto done;
	303
	304	/*
	305	* Search for the first key or specific key. Remember that keys
	306	* can be returned in any order.
	307	*/
	308	if (pfs->name_key == 0) {
	309	chain = hammer2_chain_lookup(hmp, &parent,
	310	0, (hammer2_key_t)-1, 0);
	311	} else {
	312	chain = hammer2_chain_lookup(hmp, &parent,
	313	pfs->name_key, pfs->name_key, 0);
	314	}
	315	while (chain && chain->bref.type != HAMMER2_BREF_TYPE_INODE) {
	316	chain = hammer2_chain_next(hmp, &parent, chain,
	317	0, (hammer2_key_t)-1, 0);
	318	}
	319	if (chain) {
	320	/*
	321	* Load the data being returned by the ioctl.
	322	*/
	323	xip = chain->u.ip;
	324	pfs->name_key = xip->ip_data.name_key;
	325	pfs->pfs_type = xip->ip_data.pfs_type;
8c280d5d	326	pfs->pfs_clid = xip->ip_data.pfs_clid;
ae183399 MD	327	pfs->pfs_fsid = xip->ip_data.pfs_fsid;
	328	KKASSERT(xip->ip_data.name_len < sizeof(pfs->name));
	329	bcopy(xip->ip_data.filename, pfs->name,
	330	xip->ip_data.name_len);
	331	pfs->name[xip->ip_data.name_len] = 0;
	332
	333	/*
	334	* Calculate the next field
	335	*/
	336	do {
	337	chain = hammer2_chain_next(hmp, &parent, chain,
	338	0, (hammer2_key_t)-1, 0);
	339	} while (chain && chain->bref.type != HAMMER2_BREF_TYPE_INODE);
	340	if (chain) {
	341	pfs->name_next = chain->u.ip->ip_data.name_key;
	342	hammer2_chain_unlock(hmp, chain);
	343	} else {
	344	pfs->name_next = (hammer2_key_t)-1;
	345	}
	346	} else {
	347	pfs->name_next = (hammer2_key_t)-1;
	348	error = ENOENT;
	349	}
	350	done:
	351	hammer2_chain_unlock(hmp, parent);
	352	return (error);
	353	}
	354
	355	/*
	356	* Create a new PFS under the super-root
	357	*/
	358	static int
	359	hammer2_ioctl_pfs_create(hammer2_inode_t ip, void data)
	360	{
	361	hammer2_mount_t *hmp = ip->hmp;
	362	hammer2_ioc_pfs_t *pfs = data;
	363	hammer2_inode_t *nip = NULL;
	364	int error;
	365
	366	pfs->name[sizeof(pfs->name) - 1] = 0; /* ensure 0-termination */
e4e20f48	367	error = hammer2_inode_create(hmp->schain->u.ip, NULL, NULL,
ae183399 MD	368	pfs->name, strlen(pfs->name),
	369	&nip);
	370	if (error == 0) {
	371	hammer2_chain_modify(hmp, &nip->chain, 0);
	372	nip->ip_data.pfs_type = pfs->pfs_type;
8c280d5d	373	nip->ip_data.pfs_clid = pfs->pfs_clid;
e4e20f48	374	nip->ip_data.pfs_fsid = pfs->pfs_fsid;
ae183399 MD	375	hammer2_chain_unlock(hmp, &nip->chain);
	376	}
	377	return (error);
	378	}
	379
	380	/*
	381	* Destroy an existing PFS under the super-root
	382	*/
	383	static int
	384	hammer2_ioctl_pfs_delete(hammer2_inode_t ip, void data)
	385	{
	386	hammer2_mount_t *hmp = ip->hmp;
	387	hammer2_ioc_pfs_t *pfs = data;
	388	int error;
	389
	390	error = hammer2_unlink_file(hmp->schain->u.ip,
004f88b4 MD	391	pfs->name, strlen(pfs->name),
004f88b4 MD	392	0, NULL);
ae183399 MD	393	return (error);
ae183399 MD	394	}
344d4f82 MD	395
	396	/*
	397	* Retrieve the raw inode structure
	398	*/
	399	static int
	400	hammer2_ioctl_inode_get(hammer2_inode_t ip, void data)
	401	{
	402	hammer2_ioc_inode_t *ino = data;
	403
	404	hammer2_inode_lock_sh(ip);
	405	ino->ip_data = ip->ip_data;
26b047fa	406	ino->kdata = ip;
344d4f82 MD	407	hammer2_inode_unlock_sh(ip);
	408	return (0);
	409	}
	410
	411	static int
	412	hammer2_ioctl_inode_set(hammer2_inode_t ip, void data)
	413	{
	414	hammer2_ioc_inode_t *ino = data;
	415	int error = EINVAL;
	416
	417	hammer2_inode_lock_ex(ip);
	418	if (ino->flags & HAMMER2IOC_INODE_FLAG_IQUOTA) {
	419	}
	420	if (ino->flags & HAMMER2IOC_INODE_FLAG_DQUOTA) {
	421	}
	422	if (ino->flags & HAMMER2IOC_INODE_FLAG_COPIES) {
	423	}
	424	hammer2_inode_unlock_ex(ip);
	425	return (error);
	426	}