linux/include/linux/iscsi_boot_sysfs.h
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   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#ifndef _ISCSI_BOOT_SYSFS_
  17#define _ISCSI_BOOT_SYSFS_
  18
  19/*
  20 * The text attributes names for each of the kobjects.
  21*/
  22enum iscsi_boot_eth_properties_enum {
  23        ISCSI_BOOT_ETH_INDEX,
  24        ISCSI_BOOT_ETH_FLAGS,
  25        ISCSI_BOOT_ETH_IP_ADDR,
  26        ISCSI_BOOT_ETH_SUBNET_MASK,
  27        ISCSI_BOOT_ETH_ORIGIN,
  28        ISCSI_BOOT_ETH_GATEWAY,
  29        ISCSI_BOOT_ETH_PRIMARY_DNS,
  30        ISCSI_BOOT_ETH_SECONDARY_DNS,
  31        ISCSI_BOOT_ETH_DHCP,
  32        ISCSI_BOOT_ETH_VLAN,
  33        ISCSI_BOOT_ETH_MAC,
  34        /* eth_pci_bdf - this is replaced by link to the device itself. */
  35        ISCSI_BOOT_ETH_HOSTNAME,
  36        ISCSI_BOOT_ETH_END_MARKER,
  37};
  38
  39enum iscsi_boot_tgt_properties_enum {
  40        ISCSI_BOOT_TGT_INDEX,
  41        ISCSI_BOOT_TGT_FLAGS,
  42        ISCSI_BOOT_TGT_IP_ADDR,
  43        ISCSI_BOOT_TGT_PORT,
  44        ISCSI_BOOT_TGT_LUN,
  45        ISCSI_BOOT_TGT_CHAP_TYPE,
  46        ISCSI_BOOT_TGT_NIC_ASSOC,
  47        ISCSI_BOOT_TGT_NAME,
  48        ISCSI_BOOT_TGT_CHAP_NAME,
  49        ISCSI_BOOT_TGT_CHAP_SECRET,
  50        ISCSI_BOOT_TGT_REV_CHAP_NAME,
  51        ISCSI_BOOT_TGT_REV_CHAP_SECRET,
  52        ISCSI_BOOT_TGT_END_MARKER,
  53};
  54
  55enum iscsi_boot_initiator_properties_enum {
  56        ISCSI_BOOT_INI_INDEX,
  57        ISCSI_BOOT_INI_FLAGS,
  58        ISCSI_BOOT_INI_ISNS_SERVER,
  59        ISCSI_BOOT_INI_SLP_SERVER,
  60        ISCSI_BOOT_INI_PRI_RADIUS_SERVER,
  61        ISCSI_BOOT_INI_SEC_RADIUS_SERVER,
  62        ISCSI_BOOT_INI_INITIATOR_NAME,
  63        ISCSI_BOOT_INI_END_MARKER,
  64};
  65
  66struct attribute_group;
  67
  68struct iscsi_boot_kobj {
  69        struct kobject kobj;
  70        struct attribute_group *attr_group;
  71        struct list_head list;
  72
  73        /*
  74         * Pointer to store driver specific info. If set this will
  75         * be freed for the LLD when the kobj release function is called.
  76         */
  77        void *data;
  78        /*
  79         * Driver specific show function.
  80         *
  81         * The enum of the type. This can be any value of the above
  82         * properties.
  83         */
  84        ssize_t (*show) (void *data, int type, char *buf);
  85
  86        /*
  87         * Drivers specific visibility function.
  88         * The function should return if they the attr should be readable
  89         * writable or should not be shown.
  90         *
  91         * The enum of the type. This can be any value of the above
  92         * properties.
  93         */
  94        umode_t (*is_visible) (void *data, int type);
  95
  96        /*
  97         * Driver specific release function.
  98         *
  99         * The function should free the data passed in.
 100         */
 101        void (*release) (void *data);
 102};
 103
 104struct iscsi_boot_kset {
 105        struct list_head kobj_list;
 106        struct kset *kset;
 107};
 108
 109struct iscsi_boot_kobj *
 110iscsi_boot_create_initiator(struct iscsi_boot_kset *boot_kset, int index,
 111                            void *data,
 112                            ssize_t (*show) (void *data, int type, char *buf),
 113                            umode_t (*is_visible) (void *data, int type),
 114                            void (*release) (void *data));
 115
 116struct iscsi_boot_kobj *
 117iscsi_boot_create_ethernet(struct iscsi_boot_kset *boot_kset, int index,
 118                           void *data,
 119                           ssize_t (*show) (void *data, int type, char *buf),
 120                           umode_t (*is_visible) (void *data, int type),
 121                           void (*release) (void *data));
 122struct iscsi_boot_kobj *
 123iscsi_boot_create_target(struct iscsi_boot_kset *boot_kset, int index,
 124                         void *data,
 125                         ssize_t (*show) (void *data, int type, char *buf),
 126                         umode_t (*is_visible) (void *data, int type),
 127                         void (*release) (void *data));
 128
 129struct iscsi_boot_kset *iscsi_boot_create_kset(const char *set_name);
 130struct iscsi_boot_kset *iscsi_boot_create_host_kset(unsigned int hostno);
 131void iscsi_boot_destroy_kset(struct iscsi_boot_kset *boot_kset);
 132
 133#endif
 134
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