diff options
Diffstat (limited to 'drivers/firmware')
| -rw-r--r-- | drivers/firmware/Kconfig | 8 | ||||
| -rw-r--r-- | drivers/firmware/Makefile | 1 | ||||
| -rw-r--r-- | drivers/firmware/iscsi_boot_sysfs.c | 481 |
3 files changed, 0 insertions, 490 deletions
diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig index d4ed8e98edf..280c9b5ad9e 100644 --- a/drivers/firmware/Kconfig +++ b/drivers/firmware/Kconfig @@ -122,14 +122,6 @@ config ISCSI_IBFT_FIND is necessary for iSCSI Boot Firmware Table Attributes module to work properly. -config ISCSI_BOOT_SYSFS - tristate "iSCSI Boot Sysfs Interface" - default n - help - This option enables support for exposing iSCSI boot information - via sysfs to userspace. If you wish to export this information, - say Y. Otherwise, say N. - config ISCSI_IBFT tristate "iSCSI Boot Firmware Table Attributes module" select ISCSI_BOOT_SYSFS diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile index 5fe7e166292..1c3c17343db 100644 --- a/drivers/firmware/Makefile +++ b/drivers/firmware/Makefile @@ -10,5 +10,4 @@ obj-$(CONFIG_DCDBAS) += dcdbas.o obj-$(CONFIG_DMIID) += dmi-id.o obj-$(CONFIG_ISCSI_IBFT_FIND) += iscsi_ibft_find.o obj-$(CONFIG_ISCSI_IBFT) += iscsi_ibft.o -obj-$(CONFIG_ISCSI_BOOT_SYSFS) += iscsi_boot_sysfs.o obj-$(CONFIG_FIRMWARE_MEMMAP) += memmap.o diff --git a/drivers/firmware/iscsi_boot_sysfs.c b/drivers/firmware/iscsi_boot_sysfs.c deleted file mode 100644 index df6bff7366c..00000000000 --- a/drivers/firmware/iscsi_boot_sysfs.c +++ /dev/null @@ -1,481 +0,0 @@ -/* - * 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); - - kfree(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 mode_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_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_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 mode_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_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 mode_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), - mode_t (*is_visible) (void *data, int type)) -{ - 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; - - 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->data = 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 - * - * 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), - mode_t (*is_visible) (void *data, int type)) -{ - return iscsi_boot_create_kobj(boot_kset, &iscsi_boot_target_attr_group, - "target%d", index, data, show, is_visible); -} -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 - * - * 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), - mode_t (*is_visible) (void *data, int type)) -{ - return iscsi_boot_create_kobj(boot_kset, - &iscsi_boot_initiator_attr_group, - "initiator", index, data, show, - is_visible); -} -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 - * - * 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), - mode_t (*is_visible) (void *data, int type)) -{ - return iscsi_boot_create_kobj(boot_kset, - &iscsi_boot_ethernet_attr_group, - "ethernet%d", index, data, show, - is_visible); -} -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; - - 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); -} -EXPORT_SYMBOL_GPL(iscsi_boot_destroy_kset); |