[linux-2.6-block.git] / drivers / scsi / iscsi_boot_sysfs.c

/*
 * Export the iSCSI boot info to userland via sysfs.
 *
 * Copyright (C) 2010 Red Hat, Inc.  All rights reserved.
 * Copyright (C) 2010 Mike Christie
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License v2.0 as published by
 * the Free Software Foundation
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include <linux/module.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/sysfs.h>
#include <linux/capability.h>
#include <linux/iscsi_boot_sysfs.h>


MODULE_AUTHOR("Mike Christie <michaelc@cs.wisc.edu>");
MODULE_DESCRIPTION("sysfs interface and helpers to export iSCSI boot information");
MODULE_LICENSE("GPL");
/*
 * The kobject and attribute structures.
 */
struct iscsi_boot_attr {
	struct attribute attr;
	int type;
	ssize_t (*show) (void *data, int type, char *buf);
};

/*
 * The routine called for all sysfs attributes.
 */
static ssize_t iscsi_boot_show_attribute(struct kobject *kobj,
					 struct attribute *attr, char *buf)
{
	struct iscsi_boot_kobj *boot_kobj =
			container_of(kobj, struct iscsi_boot_kobj, kobj);
	struct iscsi_boot_attr *boot_attr =
			container_of(attr, struct iscsi_boot_attr, attr);
	ssize_t ret = -EIO;
	char *str = buf;

	if (!capable(CAP_SYS_ADMIN))
		return -EACCES;

	if (boot_kobj->show)
		ret = boot_kobj->show(boot_kobj->data, boot_attr->type, str);
	return ret;
}

static const struct sysfs_ops iscsi_boot_attr_ops = {
	.show = iscsi_boot_show_attribute,
};

static void iscsi_boot_kobj_release(struct kobject *kobj)
{
	struct iscsi_boot_kobj *boot_kobj =
			container_of(kobj, struct iscsi_boot_kobj, kobj);

	if (boot_kobj->release)
		boot_kobj->release(boot_kobj->data);
	kfree(boot_kobj);
}

static struct kobj_type iscsi_boot_ktype = {
	.release = iscsi_boot_kobj_release,
	.sysfs_ops = &iscsi_boot_attr_ops,
};

#define iscsi_boot_rd_attr(fnname, sysfs_name, attr_type)		\
static struct iscsi_boot_attr iscsi_boot_attr_##fnname = {	\
	.attr	= { .name = __stringify(sysfs_name), .mode = 0444 },	\
	.type	= attr_type,						\
}

/* Target attrs */
iscsi_boot_rd_attr(tgt_index, index, ISCSI_BOOT_TGT_INDEX);
iscsi_boot_rd_attr(tgt_flags, flags, ISCSI_BOOT_TGT_FLAGS);
iscsi_boot_rd_attr(tgt_ip, ip-addr, ISCSI_BOOT_TGT_IP_ADDR);
iscsi_boot_rd_attr(tgt_port, port, ISCSI_BOOT_TGT_PORT);
iscsi_boot_rd_attr(tgt_lun, lun, ISCSI_BOOT_TGT_LUN);
iscsi_boot_rd_attr(tgt_chap, chap-type, ISCSI_BOOT_TGT_CHAP_TYPE);
iscsi_boot_rd_attr(tgt_nic, nic-assoc, ISCSI_BOOT_TGT_NIC_ASSOC);
iscsi_boot_rd_attr(tgt_name, target-name, ISCSI_BOOT_TGT_NAME);
iscsi_boot_rd_attr(tgt_chap_name, chap-name, ISCSI_BOOT_TGT_CHAP_NAME);
iscsi_boot_rd_attr(tgt_chap_secret, chap-secret, ISCSI_BOOT_TGT_CHAP_SECRET);
iscsi_boot_rd_attr(tgt_chap_rev_name, rev-chap-name,
		   ISCSI_BOOT_TGT_REV_CHAP_NAME);
iscsi_boot_rd_attr(tgt_chap_rev_secret, rev-chap-name-secret,
		   ISCSI_BOOT_TGT_REV_CHAP_SECRET);

static struct attribute *target_attrs[] = {
	&iscsi_boot_attr_tgt_index.attr,
	&iscsi_boot_attr_tgt_flags.attr,
	&iscsi_boot_attr_tgt_ip.attr,
	&iscsi_boot_attr_tgt_port.attr,
	&iscsi_boot_attr_tgt_lun.attr,
	&iscsi_boot_attr_tgt_chap.attr,
	&iscsi_boot_attr_tgt_nic.attr,
	&iscsi_boot_attr_tgt_name.attr,
	&iscsi_boot_attr_tgt_chap_name.attr,
	&iscsi_boot_attr_tgt_chap_secret.attr,
	&iscsi_boot_attr_tgt_chap_rev_name.attr,
	&iscsi_boot_attr_tgt_chap_rev_secret.attr,
	NULL
};

static umode_t iscsi_boot_tgt_attr_is_visible(struct kobject *kobj,
					     struct attribute *attr, int i)
{
	struct iscsi_boot_kobj *boot_kobj =
			container_of(kobj, struct iscsi_boot_kobj, kobj);

	if (attr ==  &iscsi_boot_attr_tgt_index.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_TGT_INDEX);
	else if (attr == &iscsi_boot_attr_tgt_flags.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_TGT_FLAGS);
	else if (attr == &iscsi_boot_attr_tgt_ip.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					      ISCSI_BOOT_TGT_IP_ADDR);
	else if (attr == &iscsi_boot_attr_tgt_port.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					      ISCSI_BOOT_TGT_PORT);
	else if (attr == &iscsi_boot_attr_tgt_lun.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					      ISCSI_BOOT_TGT_LUN);
	else if (attr == &iscsi_boot_attr_tgt_chap.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_TGT_CHAP_TYPE);
	else if (attr == &iscsi_boot_attr_tgt_nic.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_TGT_NIC_ASSOC);
	else if (attr == &iscsi_boot_attr_tgt_name.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_TGT_NAME);
	else if (attr == &iscsi_boot_attr_tgt_chap_name.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_TGT_CHAP_NAME);
	else if (attr == &iscsi_boot_attr_tgt_chap_secret.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_TGT_CHAP_SECRET);
	else if (attr == &iscsi_boot_attr_tgt_chap_rev_name.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_TGT_REV_CHAP_NAME);
	else if (attr == &iscsi_boot_attr_tgt_chap_rev_secret.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_TGT_REV_CHAP_SECRET);
	return 0;
}

static struct attribute_group iscsi_boot_target_attr_group = {
	.attrs = target_attrs,
	.is_visible = iscsi_boot_tgt_attr_is_visible,
};

/* Ethernet attrs */
iscsi_boot_rd_attr(eth_index, index, ISCSI_BOOT_ETH_INDEX);
iscsi_boot_rd_attr(eth_flags, flags, ISCSI_BOOT_ETH_FLAGS);
iscsi_boot_rd_attr(eth_ip, ip-addr, ISCSI_BOOT_ETH_IP_ADDR);
iscsi_boot_rd_attr(eth_prefix, prefix-len, ISCSI_BOOT_ETH_PREFIX_LEN);
iscsi_boot_rd_attr(eth_subnet, subnet-mask, ISCSI_BOOT_ETH_SUBNET_MASK);
iscsi_boot_rd_attr(eth_origin, origin, ISCSI_BOOT_ETH_ORIGIN);
iscsi_boot_rd_attr(eth_gateway, gateway, ISCSI_BOOT_ETH_GATEWAY);
iscsi_boot_rd_attr(eth_primary_dns, primary-dns, ISCSI_BOOT_ETH_PRIMARY_DNS);
iscsi_boot_rd_attr(eth_secondary_dns, secondary-dns,
		   ISCSI_BOOT_ETH_SECONDARY_DNS);
iscsi_boot_rd_attr(eth_dhcp, dhcp, ISCSI_BOOT_ETH_DHCP);
iscsi_boot_rd_attr(eth_vlan, vlan, ISCSI_BOOT_ETH_VLAN);
iscsi_boot_rd_attr(eth_mac, mac, ISCSI_BOOT_ETH_MAC);
iscsi_boot_rd_attr(eth_hostname, hostname, ISCSI_BOOT_ETH_HOSTNAME);

static struct attribute *ethernet_attrs[] = {
	&iscsi_boot_attr_eth_index.attr,
	&iscsi_boot_attr_eth_flags.attr,
	&iscsi_boot_attr_eth_ip.attr,
	&iscsi_boot_attr_eth_prefix.attr,
	&iscsi_boot_attr_eth_subnet.attr,
	&iscsi_boot_attr_eth_origin.attr,
	&iscsi_boot_attr_eth_gateway.attr,
	&iscsi_boot_attr_eth_primary_dns.attr,
	&iscsi_boot_attr_eth_secondary_dns.attr,
	&iscsi_boot_attr_eth_dhcp.attr,
	&iscsi_boot_attr_eth_vlan.attr,
	&iscsi_boot_attr_eth_mac.attr,
	&iscsi_boot_attr_eth_hostname.attr,
	NULL
};

static umode_t iscsi_boot_eth_attr_is_visible(struct kobject *kobj,
					     struct attribute *attr, int i)
{
	struct iscsi_boot_kobj *boot_kobj =
			container_of(kobj, struct iscsi_boot_kobj, kobj);

	if (attr ==  &iscsi_boot_attr_eth_index.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_ETH_INDEX);
	else if (attr ==  &iscsi_boot_attr_eth_flags.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_ETH_FLAGS);
	else if (attr ==  &iscsi_boot_attr_eth_ip.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_ETH_IP_ADDR);
	else if (attr ==  &iscsi_boot_attr_eth_prefix.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_ETH_PREFIX_LEN);
	else if (attr ==  &iscsi_boot_attr_eth_subnet.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_ETH_SUBNET_MASK);
	else if (attr ==  &iscsi_boot_attr_eth_origin.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_ETH_ORIGIN);
	else if (attr ==  &iscsi_boot_attr_eth_gateway.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_ETH_GATEWAY);
	else if (attr ==  &iscsi_boot_attr_eth_primary_dns.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_ETH_PRIMARY_DNS);
	else if (attr ==  &iscsi_boot_attr_eth_secondary_dns.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_ETH_SECONDARY_DNS);
	else if (attr ==  &iscsi_boot_attr_eth_dhcp.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_ETH_DHCP);
	else if (attr ==  &iscsi_boot_attr_eth_vlan.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_ETH_VLAN);
	else if (attr ==  &iscsi_boot_attr_eth_mac.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_ETH_MAC);
	else if (attr ==  &iscsi_boot_attr_eth_hostname.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_ETH_HOSTNAME);
	return 0;
}

static struct attribute_group iscsi_boot_ethernet_attr_group = {
	.attrs = ethernet_attrs,
	.is_visible = iscsi_boot_eth_attr_is_visible,
};

/* Initiator attrs */
iscsi_boot_rd_attr(ini_index, index, ISCSI_BOOT_INI_INDEX);
iscsi_boot_rd_attr(ini_flags, flags, ISCSI_BOOT_INI_FLAGS);
iscsi_boot_rd_attr(ini_isns, isns-server, ISCSI_BOOT_INI_ISNS_SERVER);
iscsi_boot_rd_attr(ini_slp, slp-server, ISCSI_BOOT_INI_SLP_SERVER);
iscsi_boot_rd_attr(ini_primary_radius, pri-radius-server,
		   ISCSI_BOOT_INI_PRI_RADIUS_SERVER);
iscsi_boot_rd_attr(ini_secondary_radius, sec-radius-server,
		   ISCSI_BOOT_INI_SEC_RADIUS_SERVER);
iscsi_boot_rd_attr(ini_name, initiator-name, ISCSI_BOOT_INI_INITIATOR_NAME);

static struct attribute *initiator_attrs[] = {
	&iscsi_boot_attr_ini_index.attr,
	&iscsi_boot_attr_ini_flags.attr,
	&iscsi_boot_attr_ini_isns.attr,
	&iscsi_boot_attr_ini_slp.attr,
	&iscsi_boot_attr_ini_primary_radius.attr,
	&iscsi_boot_attr_ini_secondary_radius.attr,
	&iscsi_boot_attr_ini_name.attr,
	NULL
};

static umode_t iscsi_boot_ini_attr_is_visible(struct kobject *kobj,
					     struct attribute *attr, int i)
{
	struct iscsi_boot_kobj *boot_kobj =
			container_of(kobj, struct iscsi_boot_kobj, kobj);

	if (attr ==  &iscsi_boot_attr_ini_index.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_INI_INDEX);
	if (attr ==  &iscsi_boot_attr_ini_flags.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_INI_FLAGS);
	if (attr ==  &iscsi_boot_attr_ini_isns.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_INI_ISNS_SERVER);
	if (attr ==  &iscsi_boot_attr_ini_slp.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_INI_SLP_SERVER);
	if (attr ==  &iscsi_boot_attr_ini_primary_radius.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_INI_PRI_RADIUS_SERVER);
	if (attr ==  &iscsi_boot_attr_ini_secondary_radius.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_INI_SEC_RADIUS_SERVER);
	if (attr ==  &iscsi_boot_attr_ini_name.attr)
		return boot_kobj->is_visible(boot_kobj->data,
					     ISCSI_BOOT_INI_INITIATOR_NAME);

	return 0;
}

static struct attribute_group iscsi_boot_initiator_attr_group = {
	.attrs = initiator_attrs,
	.is_visible = iscsi_boot_ini_attr_is_visible,
};

static struct iscsi_boot_kobj *
iscsi_boot_create_kobj(struct iscsi_boot_kset *boot_kset,
		       struct attribute_group *attr_group,
		       const char *name, int index, void *data,
		       ssize_t (*show) (void *data, int type, char *buf),
		       umode_t (*is_visible) (void *data, int type),
		       void (*release) (void *data))
{
	struct iscsi_boot_kobj *boot_kobj;

	boot_kobj = kzalloc(sizeof(*boot_kobj), GFP_KERNEL);
	if (!boot_kobj)
		return NULL;
	INIT_LIST_HEAD(&boot_kobj->list);

	boot_kobj->kobj.kset = boot_kset->kset;
	if (kobject_init_and_add(&boot_kobj->kobj, &iscsi_boot_ktype,
				 NULL, name, index)) {
		kfree(boot_kobj);
		return NULL;
	}
	boot_kobj->data = data;
	boot_kobj->show = show;
	boot_kobj->is_visible = is_visible;
	boot_kobj->release = release;

	if (sysfs_create_group(&boot_kobj->kobj, attr_group)) {
		/*
		 * We do not want to free this because the caller
		 * will assume that since the creation call failed
		 * the boot kobj was not setup and the normal release
		 * path is not being run.
		 */
		boot_kobj->release = NULL;
		kobject_put(&boot_kobj->kobj);
		return NULL;
	}
	boot_kobj->attr_group = attr_group;

	kobject_uevent(&boot_kobj->kobj, KOBJ_ADD);
	/* Nothing broke so lets add it to the list. */
	list_add_tail(&boot_kobj->list, &boot_kset->kobj_list);
	return boot_kobj;
}

static void iscsi_boot_remove_kobj(struct iscsi_boot_kobj *boot_kobj)
{
	list_del(&boot_kobj->list);
	sysfs_remove_group(&boot_kobj->kobj, boot_kobj->attr_group);
	kobject_put(&boot_kobj->kobj);
}

/**
 * iscsi_boot_create_target() - create boot target sysfs dir
 * @boot_kset: boot kset
 * @index: the target id
 * @data: driver specific data for target
 * @show: attr show function
 * @is_visible: attr visibility function
 * @release: release function
 *
 * Note: The boot sysfs lib will free the data passed in for the caller
 * when all refs to the target kobject have been released.
 */
struct iscsi_boot_kobj *
iscsi_boot_create_target(struct iscsi_boot_kset *boot_kset, int index,
			 void *data,
			 ssize_t (*show) (void *data, int type, char *buf),
			 umode_t (*is_visible) (void *data, int type),
			 void (*release) (void *data))
{
	return iscsi_boot_create_kobj(boot_kset, &iscsi_boot_target_attr_group,
				      "target%d", index, data, show, is_visible,
				      release);
}
EXPORT_SYMBOL_GPL(iscsi_boot_create_target);

/**
 * iscsi_boot_create_initiator() - create boot initiator sysfs dir
 * @boot_kset: boot kset
 * @index: the initiator id
 * @data: driver specific data
 * @show: attr show function
 * @is_visible: attr visibility function
 * @release: release function
 *
 * Note: The boot sysfs lib will free the data passed in for the caller
 * when all refs to the initiator kobject have been released.
 */
struct iscsi_boot_kobj *
iscsi_boot_create_initiator(struct iscsi_boot_kset *boot_kset, int index,
			    void *data,
			    ssize_t (*show) (void *data, int type, char *buf),
			    umode_t (*is_visible) (void *data, int type),
			    void (*release) (void *data))
{
	return iscsi_boot_create_kobj(boot_kset,
				      &iscsi_boot_initiator_attr_group,
				      "initiator", index, data, show,
				      is_visible, release);
}
EXPORT_SYMBOL_GPL(iscsi_boot_create_initiator);

/**
 * iscsi_boot_create_ethernet() - create boot ethernet sysfs dir
 * @boot_kset: boot kset
 * @index: the ethernet device id
 * @data: driver specific data
 * @show: attr show function
 * @is_visible: attr visibility function
 * @release: release function
 *
 * Note: The boot sysfs lib will free the data passed in for the caller
 * when all refs to the ethernet kobject have been released.
 */
struct iscsi_boot_kobj *
iscsi_boot_create_ethernet(struct iscsi_boot_kset *boot_kset, int index,
			   void *data,
			   ssize_t (*show) (void *data, int type, char *buf),
			   umode_t (*is_visible) (void *data, int type),
			   void (*release) (void *data))
{
	return iscsi_boot_create_kobj(boot_kset,
				      &iscsi_boot_ethernet_attr_group,
				      "ethernet%d", index, data, show,
				      is_visible, release);
}
EXPORT_SYMBOL_GPL(iscsi_boot_create_ethernet);

/**
 * iscsi_boot_create_kset() - creates root sysfs tree
 * @set_name: name of root dir
 */
struct iscsi_boot_kset *iscsi_boot_create_kset(const char *set_name)
{
	struct iscsi_boot_kset *boot_kset;

	boot_kset = kzalloc(sizeof(*boot_kset), GFP_KERNEL);
	if (!boot_kset)
		return NULL;

	boot_kset->kset = kset_create_and_add(set_name, NULL, firmware_kobj);
	if (!boot_kset->kset) {
		kfree(boot_kset);
		return NULL;
	}

	INIT_LIST_HEAD(&boot_kset->kobj_list);
	return boot_kset;
}
EXPORT_SYMBOL_GPL(iscsi_boot_create_kset);

/**
 * iscsi_boot_create_host_kset() - creates root sysfs tree for a scsi host
 * @hostno: host number of scsi host
 */
struct iscsi_boot_kset *iscsi_boot_create_host_kset(unsigned int hostno)
{
	struct iscsi_boot_kset *boot_kset;
	char *set_name;

	set_name = kasprintf(GFP_KERNEL, "iscsi_boot%u", hostno);
	if (!set_name)
		return NULL;

	boot_kset = iscsi_boot_create_kset(set_name);
	kfree(set_name);
	return boot_kset;
}
EXPORT_SYMBOL_GPL(iscsi_boot_create_host_kset);

/**
 * iscsi_boot_destroy_kset() - destroy kset and kobjects under it
 * @boot_kset: boot kset
 *
 * This will remove the kset and kobjects and attrs under it.
 */
void iscsi_boot_destroy_kset(struct iscsi_boot_kset *boot_kset)
{
	struct iscsi_boot_kobj *boot_kobj, *tmp_kobj;

	if (!boot_kset)
		return;

	list_for_each_entry_safe(boot_kobj, tmp_kobj,
				 &boot_kset->kobj_list, list)
		iscsi_boot_remove_kobj(boot_kobj);

	kset_unregister(boot_kset->kset);
	kfree(boot_kset);
}
EXPORT_SYMBOL_GPL(iscsi_boot_destroy_kset);
Commit	Line	Data
ba4ee30c MC	1	/*
	2	* Export the iSCSI boot info to userland via sysfs.
	3	*
	4	* Copyright (C) 2010 Red Hat, Inc. All rights reserved.
	5	* Copyright (C) 2010 Mike Christie
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License v2.0 as published by
	9	* the Free Software Foundation
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*/
	16
	17	#include <linux/module.h>
	18	#include <linux/string.h>
	19	#include <linux/slab.h>
	20	#include <linux/sysfs.h>
	21	#include <linux/capability.h>
	22	#include <linux/iscsi_boot_sysfs.h>
	23
	24
	25	MODULE_AUTHOR("Mike Christie <michaelc@cs.wisc.edu>");
	26	MODULE_DESCRIPTION("sysfs interface and helpers to export iSCSI boot information");
	27	MODULE_LICENSE("GPL");
	28	/*
	29	* The kobject and attribute structures.
	30	*/
	31	struct iscsi_boot_attr {
	32	struct attribute attr;
	33	int type;
	34	ssize_t (show) (void data, int type, char *buf);
	35	};
	36
	37	/*
	38	* The routine called for all sysfs attributes.
	39	*/
	40	static ssize_t iscsi_boot_show_attribute(struct kobject *kobj,
	41	struct attribute attr, char buf)
	42	{
	43	struct iscsi_boot_kobj *boot_kobj =
	44	container_of(kobj, struct iscsi_boot_kobj, kobj);
	45	struct iscsi_boot_attr *boot_attr =
	46	container_of(attr, struct iscsi_boot_attr, attr);
	47	ssize_t ret = -EIO;
	48	char *str = buf;
	49
	50	if (!capable(CAP_SYS_ADMIN))
	51	return -EACCES;
	52
	53	if (boot_kobj->show)
	54	ret = boot_kobj->show(boot_kobj->data, boot_attr->type, str);
	55	return ret;
	56	}
	57
	58	static const struct sysfs_ops iscsi_boot_attr_ops = {
	59	.show = iscsi_boot_show_attribute,
	60	};
	61
	62	static void iscsi_boot_kobj_release(struct kobject *kobj)
	63	{
	64	struct iscsi_boot_kobj *boot_kobj =
65	container_of(kobj, struct iscsi_boot_kobj, kobj);
66
f457a46f MC	67	if (boot_kobj->release)
f457a46f MC	68	boot_kobj->release(boot_kobj->data);
ba4ee30c MC	69	kfree(boot_kobj);
	70	}
	71
	72	static struct kobj_type iscsi_boot_ktype = {
	73	.release = iscsi_boot_kobj_release,
	74	.sysfs_ops = &iscsi_boot_attr_ops,
	75	};
	76
	77	#define iscsi_boot_rd_attr(fnname, sysfs_name, attr_type) \
	78	static struct iscsi_boot_attr iscsi_boot_attr_##fnname = { \
	79	.attr = { .name = __stringify(sysfs_name), .mode = 0444 }, \
	80	.type = attr_type, \
	81	}
	82
	83	/* Target attrs */
	84	iscsi_boot_rd_attr(tgt_index, index, ISCSI_BOOT_TGT_INDEX);
	85	iscsi_boot_rd_attr(tgt_flags, flags, ISCSI_BOOT_TGT_FLAGS);
	86	iscsi_boot_rd_attr(tgt_ip, ip-addr, ISCSI_BOOT_TGT_IP_ADDR);
	87	iscsi_boot_rd_attr(tgt_port, port, ISCSI_BOOT_TGT_PORT);
	88	iscsi_boot_rd_attr(tgt_lun, lun, ISCSI_BOOT_TGT_LUN);
	89	iscsi_boot_rd_attr(tgt_chap, chap-type, ISCSI_BOOT_TGT_CHAP_TYPE);
	90	iscsi_boot_rd_attr(tgt_nic, nic-assoc, ISCSI_BOOT_TGT_NIC_ASSOC);
	91	iscsi_boot_rd_attr(tgt_name, target-name, ISCSI_BOOT_TGT_NAME);
	92	iscsi_boot_rd_attr(tgt_chap_name, chap-name, ISCSI_BOOT_TGT_CHAP_NAME);
	93	iscsi_boot_rd_attr(tgt_chap_secret, chap-secret, ISCSI_BOOT_TGT_CHAP_SECRET);
	94	iscsi_boot_rd_attr(tgt_chap_rev_name, rev-chap-name,
	95	ISCSI_BOOT_TGT_REV_CHAP_NAME);
	96	iscsi_boot_rd_attr(tgt_chap_rev_secret, rev-chap-name-secret,
	97	ISCSI_BOOT_TGT_REV_CHAP_SECRET);
	98
	99	static struct attribute *target_attrs[] = {
	100	&iscsi_boot_attr_tgt_index.attr,
	101	&iscsi_boot_attr_tgt_flags.attr,
	102	&iscsi_boot_attr_tgt_ip.attr,
	103	&iscsi_boot_attr_tgt_port.attr,
	104	&iscsi_boot_attr_tgt_lun.attr,
	105	&iscsi_boot_attr_tgt_chap.attr,
	106	&iscsi_boot_attr_tgt_nic.attr,
	107	&iscsi_boot_attr_tgt_name.attr,
	108	&iscsi_boot_attr_tgt_chap_name.attr,
	109	&iscsi_boot_attr_tgt_chap_secret.attr,
	110	&iscsi_boot_attr_tgt_chap_rev_name.attr,
	111	&iscsi_boot_attr_tgt_chap_rev_secret.attr,
	112	NULL
	113	};
	114
587a1f16	115	static umode_t iscsi_boot_tgt_attr_is_visible(struct kobject *kobj,
ba4ee30c MC	116	struct attribute *attr, int i)
	117	{
	118	struct iscsi_boot_kobj *boot_kobj =
	119	container_of(kobj, struct iscsi_boot_kobj, kobj);
	120
	121	if (attr == &iscsi_boot_attr_tgt_index.attr)
	122	return boot_kobj->is_visible(boot_kobj->data,
	123	ISCSI_BOOT_TGT_INDEX);
	124	else if (attr == &iscsi_boot_attr_tgt_flags.attr)
	125	return boot_kobj->is_visible(boot_kobj->data,
	126	ISCSI_BOOT_TGT_FLAGS);
	127	else if (attr == &iscsi_boot_attr_tgt_ip.attr)
	128	return boot_kobj->is_visible(boot_kobj->data,
	129	ISCSI_BOOT_TGT_IP_ADDR);
	130	else if (attr == &iscsi_boot_attr_tgt_port.attr)
	131	return boot_kobj->is_visible(boot_kobj->data,
	132	ISCSI_BOOT_TGT_PORT);
	133	else if (attr == &iscsi_boot_attr_tgt_lun.attr)
	134	return boot_kobj->is_visible(boot_kobj->data,
	135	ISCSI_BOOT_TGT_LUN);
	136	else if (attr == &iscsi_boot_attr_tgt_chap.attr)
	137	return boot_kobj->is_visible(boot_kobj->data,
	138	ISCSI_BOOT_TGT_CHAP_TYPE);
	139	else if (attr == &iscsi_boot_attr_tgt_nic.attr)
	140	return boot_kobj->is_visible(boot_kobj->data,
	141	ISCSI_BOOT_TGT_NIC_ASSOC);
	142	else if (attr == &iscsi_boot_attr_tgt_name.attr)
	143	return boot_kobj->is_visible(boot_kobj->data,
	144	ISCSI_BOOT_TGT_NAME);
	145	else if (attr == &iscsi_boot_attr_tgt_chap_name.attr)
	146	return boot_kobj->is_visible(boot_kobj->data,
	147	ISCSI_BOOT_TGT_CHAP_NAME);
	148	else if (attr == &iscsi_boot_attr_tgt_chap_secret.attr)
	149	return boot_kobj->is_visible(boot_kobj->data,
	150	ISCSI_BOOT_TGT_CHAP_SECRET);
	151	else if (attr == &iscsi_boot_attr_tgt_chap_rev_name.attr)
	152	return boot_kobj->is_visible(boot_kobj->data,
	153	ISCSI_BOOT_TGT_REV_CHAP_NAME);
	154	else if (attr == &iscsi_boot_attr_tgt_chap_rev_secret.attr)
	155	return boot_kobj->is_visible(boot_kobj->data,
	156	ISCSI_BOOT_TGT_REV_CHAP_SECRET);
	157	return 0;
	158	}
	159
	160	static struct attribute_group iscsi_boot_target_attr_group = {
	161	.attrs = target_attrs,
	162	.is_visible = iscsi_boot_tgt_attr_is_visible,
	163	};
	164
	165	/* Ethernet attrs */
	166	iscsi_boot_rd_attr(eth_index, index, ISCSI_BOOT_ETH_INDEX);
	167	iscsi_boot_rd_attr(eth_flags, flags, ISCSI_BOOT_ETH_FLAGS);
	168	iscsi_boot_rd_attr(eth_ip, ip-addr, ISCSI_BOOT_ETH_IP_ADDR);
c988cabe	169	iscsi_boot_rd_attr(eth_prefix, prefix-len, ISCSI_BOOT_ETH_PREFIX_LEN);
ba4ee30c MC	170	iscsi_boot_rd_attr(eth_subnet, subnet-mask, ISCSI_BOOT_ETH_SUBNET_MASK);
	171	iscsi_boot_rd_attr(eth_origin, origin, ISCSI_BOOT_ETH_ORIGIN);
	172	iscsi_boot_rd_attr(eth_gateway, gateway, ISCSI_BOOT_ETH_GATEWAY);
	173	iscsi_boot_rd_attr(eth_primary_dns, primary-dns, ISCSI_BOOT_ETH_PRIMARY_DNS);
	174	iscsi_boot_rd_attr(eth_secondary_dns, secondary-dns,
	175	ISCSI_BOOT_ETH_SECONDARY_DNS);
	176	iscsi_boot_rd_attr(eth_dhcp, dhcp, ISCSI_BOOT_ETH_DHCP);
	177	iscsi_boot_rd_attr(eth_vlan, vlan, ISCSI_BOOT_ETH_VLAN);
	178	iscsi_boot_rd_attr(eth_mac, mac, ISCSI_BOOT_ETH_MAC);
	179	iscsi_boot_rd_attr(eth_hostname, hostname, ISCSI_BOOT_ETH_HOSTNAME);
	180
	181	static struct attribute *ethernet_attrs[] = {
	182	&iscsi_boot_attr_eth_index.attr,
	183	&iscsi_boot_attr_eth_flags.attr,
	184	&iscsi_boot_attr_eth_ip.attr,
c988cabe	185	&iscsi_boot_attr_eth_prefix.attr,
ba4ee30c MC	186	&iscsi_boot_attr_eth_subnet.attr,
	187	&iscsi_boot_attr_eth_origin.attr,
	188	&iscsi_boot_attr_eth_gateway.attr,
	189	&iscsi_boot_attr_eth_primary_dns.attr,
	190	&iscsi_boot_attr_eth_secondary_dns.attr,
	191	&iscsi_boot_attr_eth_dhcp.attr,
	192	&iscsi_boot_attr_eth_vlan.attr,
	193	&iscsi_boot_attr_eth_mac.attr,
	194	&iscsi_boot_attr_eth_hostname.attr,
	195	NULL
	196	};
	197
587a1f16	198	static umode_t iscsi_boot_eth_attr_is_visible(struct kobject *kobj,
ba4ee30c MC	199	struct attribute *attr, int i)
	200	{
	201	struct iscsi_boot_kobj *boot_kobj =
	202	container_of(kobj, struct iscsi_boot_kobj, kobj);
	203
	204	if (attr == &iscsi_boot_attr_eth_index.attr)
	205	return boot_kobj->is_visible(boot_kobj->data,
	206	ISCSI_BOOT_ETH_INDEX);
	207	else if (attr == &iscsi_boot_attr_eth_flags.attr)
	208	return boot_kobj->is_visible(boot_kobj->data,
	209	ISCSI_BOOT_ETH_FLAGS);
	210	else if (attr == &iscsi_boot_attr_eth_ip.attr)
	211	return boot_kobj->is_visible(boot_kobj->data,
	212	ISCSI_BOOT_ETH_IP_ADDR);
c988cabe HR	213	else if (attr == &iscsi_boot_attr_eth_prefix.attr)
	214	return boot_kobj->is_visible(boot_kobj->data,
	215	ISCSI_BOOT_ETH_PREFIX_LEN);
ba4ee30c MC	216	else if (attr == &iscsi_boot_attr_eth_subnet.attr)
	217	return boot_kobj->is_visible(boot_kobj->data,
	218	ISCSI_BOOT_ETH_SUBNET_MASK);
	219	else if (attr == &iscsi_boot_attr_eth_origin.attr)
	220	return boot_kobj->is_visible(boot_kobj->data,
	221	ISCSI_BOOT_ETH_ORIGIN);
	222	else if (attr == &iscsi_boot_attr_eth_gateway.attr)
	223	return boot_kobj->is_visible(boot_kobj->data,
	224	ISCSI_BOOT_ETH_GATEWAY);
	225	else if (attr == &iscsi_boot_attr_eth_primary_dns.attr)
	226	return boot_kobj->is_visible(boot_kobj->data,
	227	ISCSI_BOOT_ETH_PRIMARY_DNS);
	228	else if (attr == &iscsi_boot_attr_eth_secondary_dns.attr)
	229	return boot_kobj->is_visible(boot_kobj->data,
	230	ISCSI_BOOT_ETH_SECONDARY_DNS);
	231	else if (attr == &iscsi_boot_attr_eth_dhcp.attr)
	232	return boot_kobj->is_visible(boot_kobj->data,
	233	ISCSI_BOOT_ETH_DHCP);
	234	else if (attr == &iscsi_boot_attr_eth_vlan.attr)
	235	return boot_kobj->is_visible(boot_kobj->data,
	236	ISCSI_BOOT_ETH_VLAN);
	237	else if (attr == &iscsi_boot_attr_eth_mac.attr)
	238	return boot_kobj->is_visible(boot_kobj->data,
	239	ISCSI_BOOT_ETH_MAC);
	240	else if (attr == &iscsi_boot_attr_eth_hostname.attr)
	241	return boot_kobj->is_visible(boot_kobj->data,
	242	ISCSI_BOOT_ETH_HOSTNAME);
	243	return 0;
	244	}
	245
	246	static struct attribute_group iscsi_boot_ethernet_attr_group = {
	247	.attrs = ethernet_attrs,
	248	.is_visible = iscsi_boot_eth_attr_is_visible,
	249	};
	250
	251	/* Initiator attrs */
	252	iscsi_boot_rd_attr(ini_index, index, ISCSI_BOOT_INI_INDEX);
	253	iscsi_boot_rd_attr(ini_flags, flags, ISCSI_BOOT_INI_FLAGS);
	254	iscsi_boot_rd_attr(ini_isns, isns-server, ISCSI_BOOT_INI_ISNS_SERVER);
	255	iscsi_boot_rd_attr(ini_slp, slp-server, ISCSI_BOOT_INI_SLP_SERVER);
	256	iscsi_boot_rd_attr(ini_primary_radius, pri-radius-server,
	257	ISCSI_BOOT_INI_PRI_RADIUS_SERVER);
	258	iscsi_boot_rd_attr(ini_secondary_radius, sec-radius-server,
	259	ISCSI_BOOT_INI_SEC_RADIUS_SERVER);
	260	iscsi_boot_rd_attr(ini_name, initiator-name, ISCSI_BOOT_INI_INITIATOR_NAME);
	261
	262	static struct attribute *initiator_attrs[] = {
	263	&iscsi_boot_attr_ini_index.attr,
	264	&iscsi_boot_attr_ini_flags.attr,
	265	&iscsi_boot_attr_ini_isns.attr,
	266	&iscsi_boot_attr_ini_slp.attr,
	267	&iscsi_boot_attr_ini_primary_radius.attr,
	268	&iscsi_boot_attr_ini_secondary_radius.attr,
	269	&iscsi_boot_attr_ini_name.attr,
	270	NULL
	271	};
	272
587a1f16	273	static umode_t iscsi_boot_ini_attr_is_visible(struct kobject *kobj,
ba4ee30c MC	274	struct attribute *attr, int i)
	275	{
	276	struct iscsi_boot_kobj *boot_kobj =
	277	container_of(kobj, struct iscsi_boot_kobj, kobj);
	278
	279	if (attr == &iscsi_boot_attr_ini_index.attr)
	280	return boot_kobj->is_visible(boot_kobj->data,
	281	ISCSI_BOOT_INI_INDEX);
	282	if (attr == &iscsi_boot_attr_ini_flags.attr)
	283	return boot_kobj->is_visible(boot_kobj->data,
	284	ISCSI_BOOT_INI_FLAGS);
	285	if (attr == &iscsi_boot_attr_ini_isns.attr)
	286	return boot_kobj->is_visible(boot_kobj->data,
	287	ISCSI_BOOT_INI_ISNS_SERVER);
	288	if (attr == &iscsi_boot_attr_ini_slp.attr)
	289	return boot_kobj->is_visible(boot_kobj->data,
	290	ISCSI_BOOT_INI_SLP_SERVER);
	291	if (attr == &iscsi_boot_attr_ini_primary_radius.attr)
	292	return boot_kobj->is_visible(boot_kobj->data,
	293	ISCSI_BOOT_INI_PRI_RADIUS_SERVER);
	294	if (attr == &iscsi_boot_attr_ini_secondary_radius.attr)
	295	return boot_kobj->is_visible(boot_kobj->data,
	296	ISCSI_BOOT_INI_SEC_RADIUS_SERVER);
	297	if (attr == &iscsi_boot_attr_ini_name.attr)
	298	return boot_kobj->is_visible(boot_kobj->data,
	299	ISCSI_BOOT_INI_INITIATOR_NAME);
	300
	301	return 0;
	302	}
	303
	304	static struct attribute_group iscsi_boot_initiator_attr_group = {
	305	.attrs = initiator_attrs,
	306	.is_visible = iscsi_boot_ini_attr_is_visible,
	307	};
	308
	309	static struct iscsi_boot_kobj *
	310	iscsi_boot_create_kobj(struct iscsi_boot_kset *boot_kset,
	311	struct attribute_group *attr_group,
	312	const char name, int index, void data,
	313	ssize_t (show) (void data, int type, char *buf),
587a1f16	314	umode_t (is_visible) (void data, int type),
f457a46f	315	void (release) (void data))
ba4ee30c MC	316	{
	317	struct iscsi_boot_kobj *boot_kobj;
	318
	319	boot_kobj = kzalloc(sizeof(*boot_kobj), GFP_KERNEL);
	320	if (!boot_kobj)
	321	return NULL;
	322	INIT_LIST_HEAD(&boot_kobj->list);
	323
	324	boot_kobj->kobj.kset = boot_kset->kset;
	325	if (kobject_init_and_add(&boot_kobj->kobj, &iscsi_boot_ktype,
	326	NULL, name, index)) {
	327	kfree(boot_kobj);
	328	return NULL;
	329	}
	330	boot_kobj->data = data;
	331	boot_kobj->show = show;
	332	boot_kobj->is_visible = is_visible;
f457a46f	333	boot_kobj->release = release;
ba4ee30c MC	334
	335	if (sysfs_create_group(&boot_kobj->kobj, attr_group)) {
	336	/*
	337	* We do not want to free this because the caller
	338	* will assume that since the creation call failed
	339	* the boot kobj was not setup and the normal release
	340	* path is not being run.
	341	*/
f457a46f	342	boot_kobj->release = NULL;
ba4ee30c MC	343	kobject_put(&boot_kobj->kobj);
	344	return NULL;
	345	}
	346	boot_kobj->attr_group = attr_group;
	347
	348	kobject_uevent(&boot_kobj->kobj, KOBJ_ADD);
	349	/* Nothing broke so lets add it to the list. */
	350	list_add_tail(&boot_kobj->list, &boot_kset->kobj_list);
	351	return boot_kobj;
	352	}
	353
	354	static void iscsi_boot_remove_kobj(struct iscsi_boot_kobj *boot_kobj)
	355	{
	356	list_del(&boot_kobj->list);
	357	sysfs_remove_group(&boot_kobj->kobj, boot_kobj->attr_group);
	358	kobject_put(&boot_kobj->kobj);
	359	}
	360
	361	/**
	362	* iscsi_boot_create_target() - create boot target sysfs dir
	363	* @boot_kset: boot kset
	364	* @index: the target id
	365	* @data: driver specific data for target
	366	* @show: attr show function
	367	* @is_visible: attr visibility function
f457a46f	368	* @release: release function
ba4ee30c MC	369	*
	370	* Note: The boot sysfs lib will free the data passed in for the caller
	371	* when all refs to the target kobject have been released.
	372	*/
	373	struct iscsi_boot_kobj *
	374	iscsi_boot_create_target(struct iscsi_boot_kset *boot_kset, int index,
	375	void *data,
	376	ssize_t (show) (void data, int type, char *buf),
587a1f16	377	umode_t (is_visible) (void data, int type),
f457a46f	378	void (release) (void data))
ba4ee30c MC	379	{
ba4ee30c MC	380	return iscsi_boot_create_kobj(boot_kset, &iscsi_boot_target_attr_group,
f457a46f MC	381	"target%d", index, data, show, is_visible,
f457a46f MC	382	release);
ba4ee30c MC	383	}
	384	EXPORT_SYMBOL_GPL(iscsi_boot_create_target);
	385
	386	/**
	387	* iscsi_boot_create_initiator() - create boot initiator sysfs dir
	388	* @boot_kset: boot kset
	389	* @index: the initiator id
	390	* @data: driver specific data
	391	* @show: attr show function
	392	* @is_visible: attr visibility function
f457a46f	393	* @release: release function
ba4ee30c MC	394	*
	395	* Note: The boot sysfs lib will free the data passed in for the caller
	396	* when all refs to the initiator kobject have been released.
	397	*/
	398	struct iscsi_boot_kobj *
	399	iscsi_boot_create_initiator(struct iscsi_boot_kset *boot_kset, int index,
	400	void *data,
	401	ssize_t (show) (void data, int type, char *buf),
587a1f16	402	umode_t (is_visible) (void data, int type),
f457a46f	403	void (release) (void data))
ba4ee30c MC	404	{
	405	return iscsi_boot_create_kobj(boot_kset,
	406	&iscsi_boot_initiator_attr_group,
	407	"initiator", index, data, show,
f457a46f	408	is_visible, release);
ba4ee30c MC	409	}
	410	EXPORT_SYMBOL_GPL(iscsi_boot_create_initiator);
	411
	412	/**
	413	* iscsi_boot_create_ethernet() - create boot ethernet sysfs dir
	414	* @boot_kset: boot kset
	415	* @index: the ethernet device id
	416	* @data: driver specific data
	417	* @show: attr show function
	418	* @is_visible: attr visibility function
f457a46f	419	* @release: release function
ba4ee30c MC	420	*
	421	* Note: The boot sysfs lib will free the data passed in for the caller
	422	* when all refs to the ethernet kobject have been released.
	423	*/
	424	struct iscsi_boot_kobj *
	425	iscsi_boot_create_ethernet(struct iscsi_boot_kset *boot_kset, int index,
	426	void *data,
	427	ssize_t (show) (void data, int type, char *buf),
587a1f16	428	umode_t (is_visible) (void data, int type),
f457a46f	429	void (release) (void data))
ba4ee30c MC	430	{
	431	return iscsi_boot_create_kobj(boot_kset,
	432	&iscsi_boot_ethernet_attr_group,
	433	"ethernet%d", index, data, show,
f457a46f	434	is_visible, release);
ba4ee30c MC	435	}
	436	EXPORT_SYMBOL_GPL(iscsi_boot_create_ethernet);
	437
	438	/**
	439	* iscsi_boot_create_kset() - creates root sysfs tree
	440	* @set_name: name of root dir
	441	*/
	442	struct iscsi_boot_kset iscsi_boot_create_kset(const char set_name)
	443	{
	444	struct iscsi_boot_kset *boot_kset;
	445
	446	boot_kset = kzalloc(sizeof(*boot_kset), GFP_KERNEL);
	447	if (!boot_kset)
	448	return NULL;
	449
	450	boot_kset->kset = kset_create_and_add(set_name, NULL, firmware_kobj);
	451	if (!boot_kset->kset) {
	452	kfree(boot_kset);
	453	return NULL;
	454	}
	455
	456	INIT_LIST_HEAD(&boot_kset->kobj_list);
	457	return boot_kset;
	458	}
	459	EXPORT_SYMBOL_GPL(iscsi_boot_create_kset);
	460
	461	/**
	462	* iscsi_boot_create_host_kset() - creates root sysfs tree for a scsi host
	463	* @hostno: host number of scsi host
	464	*/
	465	struct iscsi_boot_kset *iscsi_boot_create_host_kset(unsigned int hostno)
	466	{
	467	struct iscsi_boot_kset *boot_kset;
	468	char *set_name;
	469
	470	set_name = kasprintf(GFP_KERNEL, "iscsi_boot%u", hostno);
	471	if (!set_name)
	472	return NULL;
	473
	474	boot_kset = iscsi_boot_create_kset(set_name);
	475	kfree(set_name);
	476	return boot_kset;
	477	}
	478	EXPORT_SYMBOL_GPL(iscsi_boot_create_host_kset);
	479
	480	/**
	481	* iscsi_boot_destroy_kset() - destroy kset and kobjects under it
	482	* @boot_kset: boot kset
	483	*
	484	* This will remove the kset and kobjects and attrs under it.
	485	*/
	486	void iscsi_boot_destroy_kset(struct iscsi_boot_kset *boot_kset)
	487	{
	488	struct iscsi_boot_kobj boot_kobj, tmp_kobj;
	489
9d045163 MC	490	if (!boot_kset)
	491	return;
	492
ba4ee30c MC	493	list_for_each_entry_safe(boot_kobj, tmp_kobj,
	494	&boot_kset->kobj_list, list)
	495	iscsi_boot_remove_kobj(boot_kobj);
	496
	497	kset_unregister(boot_kset->kset);
9cb48e7b	498	kfree(boot_kset);
ba4ee30c MC	499	}
ba4ee30c MC	500	EXPORT_SYMBOL_GPL(iscsi_boot_destroy_kset);