include/linux/iscsi_boot_sysfs.h

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