^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Export the iSCSI boot info to userland via sysfs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2010 Red Hat, Inc. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (C) 2010 Mike Christie
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/sysfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/capability.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/iscsi_boot_sysfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) MODULE_AUTHOR("Mike Christie <michaelc@cs.wisc.edu>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) MODULE_DESCRIPTION("sysfs interface and helpers to export iSCSI boot information");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * The kobject and attribute structures.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) struct iscsi_boot_attr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) struct attribute attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) int type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) ssize_t (*show) (void *data, int type, char *buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * The routine called for all sysfs attributes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) static ssize_t iscsi_boot_show_attribute(struct kobject *kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) struct attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) struct iscsi_boot_kobj *boot_kobj =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) container_of(kobj, struct iscsi_boot_kobj, kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) struct iscsi_boot_attr *boot_attr =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) container_of(attr, struct iscsi_boot_attr, attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) ssize_t ret = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) char *str = buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) if (!capable(CAP_SYS_ADMIN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) return -EACCES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) if (boot_kobj->show)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) ret = boot_kobj->show(boot_kobj->data, boot_attr->type, str);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) static const struct sysfs_ops iscsi_boot_attr_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) .show = iscsi_boot_show_attribute,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) static void iscsi_boot_kobj_release(struct kobject *kobj)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) struct iscsi_boot_kobj *boot_kobj =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) container_of(kobj, struct iscsi_boot_kobj, kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) if (boot_kobj->release)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) boot_kobj->release(boot_kobj->data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) kfree(boot_kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) static struct kobj_type iscsi_boot_ktype = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) .release = iscsi_boot_kobj_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) .sysfs_ops = &iscsi_boot_attr_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) #define iscsi_boot_rd_attr(fnname, sysfs_name, attr_type) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) static struct iscsi_boot_attr iscsi_boot_attr_##fnname = { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) .attr = { .name = __stringify(sysfs_name), .mode = 0444 }, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) .type = attr_type, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) /* Target attrs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) iscsi_boot_rd_attr(tgt_index, index, ISCSI_BOOT_TGT_INDEX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) iscsi_boot_rd_attr(tgt_flags, flags, ISCSI_BOOT_TGT_FLAGS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) iscsi_boot_rd_attr(tgt_ip, ip-addr, ISCSI_BOOT_TGT_IP_ADDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) iscsi_boot_rd_attr(tgt_port, port, ISCSI_BOOT_TGT_PORT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) iscsi_boot_rd_attr(tgt_lun, lun, ISCSI_BOOT_TGT_LUN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) iscsi_boot_rd_attr(tgt_chap, chap-type, ISCSI_BOOT_TGT_CHAP_TYPE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) iscsi_boot_rd_attr(tgt_nic, nic-assoc, ISCSI_BOOT_TGT_NIC_ASSOC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) iscsi_boot_rd_attr(tgt_name, target-name, ISCSI_BOOT_TGT_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) iscsi_boot_rd_attr(tgt_chap_name, chap-name, ISCSI_BOOT_TGT_CHAP_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) iscsi_boot_rd_attr(tgt_chap_secret, chap-secret, ISCSI_BOOT_TGT_CHAP_SECRET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) iscsi_boot_rd_attr(tgt_chap_rev_name, rev-chap-name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) ISCSI_BOOT_TGT_REV_CHAP_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) iscsi_boot_rd_attr(tgt_chap_rev_secret, rev-chap-name-secret,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) ISCSI_BOOT_TGT_REV_CHAP_SECRET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) static struct attribute *target_attrs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) &iscsi_boot_attr_tgt_index.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) &iscsi_boot_attr_tgt_flags.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) &iscsi_boot_attr_tgt_ip.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) &iscsi_boot_attr_tgt_port.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) &iscsi_boot_attr_tgt_lun.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) &iscsi_boot_attr_tgt_chap.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) &iscsi_boot_attr_tgt_nic.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) &iscsi_boot_attr_tgt_name.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) &iscsi_boot_attr_tgt_chap_name.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) &iscsi_boot_attr_tgt_chap_secret.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) &iscsi_boot_attr_tgt_chap_rev_name.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) &iscsi_boot_attr_tgt_chap_rev_secret.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) static umode_t iscsi_boot_tgt_attr_is_visible(struct kobject *kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) struct attribute *attr, int i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) struct iscsi_boot_kobj *boot_kobj =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) container_of(kobj, struct iscsi_boot_kobj, kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) if (attr == &iscsi_boot_attr_tgt_index.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) ISCSI_BOOT_TGT_INDEX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) else if (attr == &iscsi_boot_attr_tgt_flags.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) ISCSI_BOOT_TGT_FLAGS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) else if (attr == &iscsi_boot_attr_tgt_ip.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) ISCSI_BOOT_TGT_IP_ADDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) else if (attr == &iscsi_boot_attr_tgt_port.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) ISCSI_BOOT_TGT_PORT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) else if (attr == &iscsi_boot_attr_tgt_lun.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) ISCSI_BOOT_TGT_LUN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) else if (attr == &iscsi_boot_attr_tgt_chap.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) ISCSI_BOOT_TGT_CHAP_TYPE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) else if (attr == &iscsi_boot_attr_tgt_nic.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) ISCSI_BOOT_TGT_NIC_ASSOC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) else if (attr == &iscsi_boot_attr_tgt_name.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) ISCSI_BOOT_TGT_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) else if (attr == &iscsi_boot_attr_tgt_chap_name.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) ISCSI_BOOT_TGT_CHAP_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) else if (attr == &iscsi_boot_attr_tgt_chap_secret.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) ISCSI_BOOT_TGT_CHAP_SECRET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) else if (attr == &iscsi_boot_attr_tgt_chap_rev_name.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) ISCSI_BOOT_TGT_REV_CHAP_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) else if (attr == &iscsi_boot_attr_tgt_chap_rev_secret.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) ISCSI_BOOT_TGT_REV_CHAP_SECRET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) static struct attribute_group iscsi_boot_target_attr_group = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) .attrs = target_attrs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) .is_visible = iscsi_boot_tgt_attr_is_visible,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) /* Ethernet attrs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) iscsi_boot_rd_attr(eth_index, index, ISCSI_BOOT_ETH_INDEX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) iscsi_boot_rd_attr(eth_flags, flags, ISCSI_BOOT_ETH_FLAGS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) iscsi_boot_rd_attr(eth_ip, ip-addr, ISCSI_BOOT_ETH_IP_ADDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) iscsi_boot_rd_attr(eth_prefix, prefix-len, ISCSI_BOOT_ETH_PREFIX_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) iscsi_boot_rd_attr(eth_subnet, subnet-mask, ISCSI_BOOT_ETH_SUBNET_MASK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) iscsi_boot_rd_attr(eth_origin, origin, ISCSI_BOOT_ETH_ORIGIN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) iscsi_boot_rd_attr(eth_gateway, gateway, ISCSI_BOOT_ETH_GATEWAY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) iscsi_boot_rd_attr(eth_primary_dns, primary-dns, ISCSI_BOOT_ETH_PRIMARY_DNS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) iscsi_boot_rd_attr(eth_secondary_dns, secondary-dns,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) ISCSI_BOOT_ETH_SECONDARY_DNS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) iscsi_boot_rd_attr(eth_dhcp, dhcp, ISCSI_BOOT_ETH_DHCP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) iscsi_boot_rd_attr(eth_vlan, vlan, ISCSI_BOOT_ETH_VLAN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) iscsi_boot_rd_attr(eth_mac, mac, ISCSI_BOOT_ETH_MAC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) iscsi_boot_rd_attr(eth_hostname, hostname, ISCSI_BOOT_ETH_HOSTNAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) static struct attribute *ethernet_attrs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) &iscsi_boot_attr_eth_index.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) &iscsi_boot_attr_eth_flags.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) &iscsi_boot_attr_eth_ip.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) &iscsi_boot_attr_eth_prefix.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) &iscsi_boot_attr_eth_subnet.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) &iscsi_boot_attr_eth_origin.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) &iscsi_boot_attr_eth_gateway.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) &iscsi_boot_attr_eth_primary_dns.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) &iscsi_boot_attr_eth_secondary_dns.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) &iscsi_boot_attr_eth_dhcp.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) &iscsi_boot_attr_eth_vlan.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) &iscsi_boot_attr_eth_mac.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) &iscsi_boot_attr_eth_hostname.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) static umode_t iscsi_boot_eth_attr_is_visible(struct kobject *kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) struct attribute *attr, int i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) struct iscsi_boot_kobj *boot_kobj =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) container_of(kobj, struct iscsi_boot_kobj, kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) if (attr == &iscsi_boot_attr_eth_index.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) ISCSI_BOOT_ETH_INDEX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) else if (attr == &iscsi_boot_attr_eth_flags.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) ISCSI_BOOT_ETH_FLAGS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) else if (attr == &iscsi_boot_attr_eth_ip.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) ISCSI_BOOT_ETH_IP_ADDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) else if (attr == &iscsi_boot_attr_eth_prefix.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) ISCSI_BOOT_ETH_PREFIX_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) else if (attr == &iscsi_boot_attr_eth_subnet.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) ISCSI_BOOT_ETH_SUBNET_MASK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) else if (attr == &iscsi_boot_attr_eth_origin.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) ISCSI_BOOT_ETH_ORIGIN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) else if (attr == &iscsi_boot_attr_eth_gateway.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) ISCSI_BOOT_ETH_GATEWAY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) else if (attr == &iscsi_boot_attr_eth_primary_dns.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) ISCSI_BOOT_ETH_PRIMARY_DNS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) else if (attr == &iscsi_boot_attr_eth_secondary_dns.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) ISCSI_BOOT_ETH_SECONDARY_DNS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) else if (attr == &iscsi_boot_attr_eth_dhcp.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) ISCSI_BOOT_ETH_DHCP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) else if (attr == &iscsi_boot_attr_eth_vlan.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) ISCSI_BOOT_ETH_VLAN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) else if (attr == &iscsi_boot_attr_eth_mac.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) ISCSI_BOOT_ETH_MAC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) else if (attr == &iscsi_boot_attr_eth_hostname.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) ISCSI_BOOT_ETH_HOSTNAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) static struct attribute_group iscsi_boot_ethernet_attr_group = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) .attrs = ethernet_attrs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) .is_visible = iscsi_boot_eth_attr_is_visible,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) /* Initiator attrs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) iscsi_boot_rd_attr(ini_index, index, ISCSI_BOOT_INI_INDEX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) iscsi_boot_rd_attr(ini_flags, flags, ISCSI_BOOT_INI_FLAGS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) iscsi_boot_rd_attr(ini_isns, isns-server, ISCSI_BOOT_INI_ISNS_SERVER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) iscsi_boot_rd_attr(ini_slp, slp-server, ISCSI_BOOT_INI_SLP_SERVER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) iscsi_boot_rd_attr(ini_primary_radius, pri-radius-server,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) ISCSI_BOOT_INI_PRI_RADIUS_SERVER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) iscsi_boot_rd_attr(ini_secondary_radius, sec-radius-server,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) ISCSI_BOOT_INI_SEC_RADIUS_SERVER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) iscsi_boot_rd_attr(ini_name, initiator-name, ISCSI_BOOT_INI_INITIATOR_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) static struct attribute *initiator_attrs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) &iscsi_boot_attr_ini_index.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) &iscsi_boot_attr_ini_flags.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) &iscsi_boot_attr_ini_isns.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) &iscsi_boot_attr_ini_slp.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) &iscsi_boot_attr_ini_primary_radius.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) &iscsi_boot_attr_ini_secondary_radius.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) &iscsi_boot_attr_ini_name.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) static umode_t iscsi_boot_ini_attr_is_visible(struct kobject *kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) struct attribute *attr, int i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) struct iscsi_boot_kobj *boot_kobj =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) container_of(kobj, struct iscsi_boot_kobj, kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) if (attr == &iscsi_boot_attr_ini_index.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) ISCSI_BOOT_INI_INDEX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) if (attr == &iscsi_boot_attr_ini_flags.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) ISCSI_BOOT_INI_FLAGS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) if (attr == &iscsi_boot_attr_ini_isns.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) ISCSI_BOOT_INI_ISNS_SERVER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) if (attr == &iscsi_boot_attr_ini_slp.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) ISCSI_BOOT_INI_SLP_SERVER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) if (attr == &iscsi_boot_attr_ini_primary_radius.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) ISCSI_BOOT_INI_PRI_RADIUS_SERVER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) if (attr == &iscsi_boot_attr_ini_secondary_radius.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) ISCSI_BOOT_INI_SEC_RADIUS_SERVER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) if (attr == &iscsi_boot_attr_ini_name.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) ISCSI_BOOT_INI_INITIATOR_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) static struct attribute_group iscsi_boot_initiator_attr_group = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) .attrs = initiator_attrs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) .is_visible = iscsi_boot_ini_attr_is_visible,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) /* iBFT ACPI Table attributes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) iscsi_boot_rd_attr(acpitbl_signature, signature, ISCSI_BOOT_ACPITBL_SIGNATURE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) iscsi_boot_rd_attr(acpitbl_oem_id, oem_id, ISCSI_BOOT_ACPITBL_OEM_ID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) iscsi_boot_rd_attr(acpitbl_oem_table_id, oem_table_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) ISCSI_BOOT_ACPITBL_OEM_TABLE_ID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) static struct attribute *acpitbl_attrs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) &iscsi_boot_attr_acpitbl_signature.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) &iscsi_boot_attr_acpitbl_oem_id.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) &iscsi_boot_attr_acpitbl_oem_table_id.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) static umode_t iscsi_boot_acpitbl_attr_is_visible(struct kobject *kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) struct attribute *attr, int i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) struct iscsi_boot_kobj *boot_kobj =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) container_of(kobj, struct iscsi_boot_kobj, kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) if (attr == &iscsi_boot_attr_acpitbl_signature.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) ISCSI_BOOT_ACPITBL_SIGNATURE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) if (attr == &iscsi_boot_attr_acpitbl_oem_id.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) ISCSI_BOOT_ACPITBL_OEM_ID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) if (attr == &iscsi_boot_attr_acpitbl_oem_table_id.attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) return boot_kobj->is_visible(boot_kobj->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) ISCSI_BOOT_ACPITBL_OEM_TABLE_ID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) static struct attribute_group iscsi_boot_acpitbl_attr_group = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) .attrs = acpitbl_attrs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) .is_visible = iscsi_boot_acpitbl_attr_is_visible,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) static struct iscsi_boot_kobj *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) iscsi_boot_create_kobj(struct iscsi_boot_kset *boot_kset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) struct attribute_group *attr_group,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) const char *name, int index, void *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) ssize_t (*show) (void *data, int type, char *buf),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) umode_t (*is_visible) (void *data, int type),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) void (*release) (void *data))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) struct iscsi_boot_kobj *boot_kobj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) boot_kobj = kzalloc(sizeof(*boot_kobj), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) if (!boot_kobj)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) INIT_LIST_HEAD(&boot_kobj->list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) boot_kobj->kobj.kset = boot_kset->kset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) if (kobject_init_and_add(&boot_kobj->kobj, &iscsi_boot_ktype,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) NULL, name, index)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) kobject_put(&boot_kobj->kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) boot_kobj->data = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) boot_kobj->show = show;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) boot_kobj->is_visible = is_visible;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) boot_kobj->release = release;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) if (sysfs_create_group(&boot_kobj->kobj, attr_group)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) * We do not want to free this because the caller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) * will assume that since the creation call failed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) * the boot kobj was not setup and the normal release
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) * path is not being run.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) boot_kobj->release = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) kobject_put(&boot_kobj->kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) boot_kobj->attr_group = attr_group;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) kobject_uevent(&boot_kobj->kobj, KOBJ_ADD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) /* Nothing broke so lets add it to the list. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) list_add_tail(&boot_kobj->list, &boot_kset->kobj_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) return boot_kobj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) static void iscsi_boot_remove_kobj(struct iscsi_boot_kobj *boot_kobj)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) list_del(&boot_kobj->list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) sysfs_remove_group(&boot_kobj->kobj, boot_kobj->attr_group);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) kobject_put(&boot_kobj->kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) * iscsi_boot_create_target() - create boot target sysfs dir
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) * @boot_kset: boot kset
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) * @index: the target id
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) * @data: driver specific data for target
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) * @show: attr show function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) * @is_visible: attr visibility function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) * @release: release function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) * Note: The boot sysfs lib will free the data passed in for the caller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) * when all refs to the target kobject have been released.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) struct iscsi_boot_kobj *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) iscsi_boot_create_target(struct iscsi_boot_kset *boot_kset, int index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) void *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) ssize_t (*show) (void *data, int type, char *buf),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) umode_t (*is_visible) (void *data, int type),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) void (*release) (void *data))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) return iscsi_boot_create_kobj(boot_kset, &iscsi_boot_target_attr_group,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) "target%d", index, data, show, is_visible,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) release);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) EXPORT_SYMBOL_GPL(iscsi_boot_create_target);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) * iscsi_boot_create_initiator() - create boot initiator sysfs dir
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) * @boot_kset: boot kset
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) * @index: the initiator id
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) * @data: driver specific data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) * @show: attr show function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) * @is_visible: attr visibility function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) * @release: release function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) * Note: The boot sysfs lib will free the data passed in for the caller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) * when all refs to the initiator kobject have been released.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) struct iscsi_boot_kobj *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) iscsi_boot_create_initiator(struct iscsi_boot_kset *boot_kset, int index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) void *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) ssize_t (*show) (void *data, int type, char *buf),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) umode_t (*is_visible) (void *data, int type),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) void (*release) (void *data))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) return iscsi_boot_create_kobj(boot_kset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) &iscsi_boot_initiator_attr_group,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) "initiator", index, data, show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) is_visible, release);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) EXPORT_SYMBOL_GPL(iscsi_boot_create_initiator);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) * iscsi_boot_create_ethernet() - create boot ethernet sysfs dir
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) * @boot_kset: boot kset
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) * @index: the ethernet device id
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) * @data: driver specific data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) * @show: attr show function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) * @is_visible: attr visibility function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) * @release: release function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) * Note: The boot sysfs lib will free the data passed in for the caller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) * when all refs to the ethernet kobject have been released.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) struct iscsi_boot_kobj *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) iscsi_boot_create_ethernet(struct iscsi_boot_kset *boot_kset, int index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) void *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) ssize_t (*show) (void *data, int type, char *buf),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) umode_t (*is_visible) (void *data, int type),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) void (*release) (void *data))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) return iscsi_boot_create_kobj(boot_kset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) &iscsi_boot_ethernet_attr_group,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) "ethernet%d", index, data, show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) is_visible, release);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) EXPORT_SYMBOL_GPL(iscsi_boot_create_ethernet);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) * iscsi_boot_create_acpitbl() - create boot acpi table sysfs dir
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) * @boot_kset: boot kset
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) * @index: not used
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) * @data: driver specific data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) * @show: attr show function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) * @is_visible: attr visibility function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) * @release: release function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) * Note: The boot sysfs lib will free the data passed in for the caller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) * when all refs to the acpitbl kobject have been released.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) struct iscsi_boot_kobj *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) iscsi_boot_create_acpitbl(struct iscsi_boot_kset *boot_kset, int index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) void *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) ssize_t (*show)(void *data, int type, char *buf),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) umode_t (*is_visible)(void *data, int type),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) void (*release)(void *data))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) return iscsi_boot_create_kobj(boot_kset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) &iscsi_boot_acpitbl_attr_group,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) "acpi_header", index, data, show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) is_visible, release);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) EXPORT_SYMBOL_GPL(iscsi_boot_create_acpitbl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) * iscsi_boot_create_kset() - creates root sysfs tree
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) * @set_name: name of root dir
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) struct iscsi_boot_kset *iscsi_boot_create_kset(const char *set_name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) struct iscsi_boot_kset *boot_kset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) boot_kset = kzalloc(sizeof(*boot_kset), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) if (!boot_kset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) boot_kset->kset = kset_create_and_add(set_name, NULL, firmware_kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) if (!boot_kset->kset) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) kfree(boot_kset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) INIT_LIST_HEAD(&boot_kset->kobj_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) return boot_kset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) EXPORT_SYMBOL_GPL(iscsi_boot_create_kset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) * iscsi_boot_create_host_kset() - creates root sysfs tree for a scsi host
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) * @hostno: host number of scsi host
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) struct iscsi_boot_kset *iscsi_boot_create_host_kset(unsigned int hostno)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) struct iscsi_boot_kset *boot_kset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) char *set_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) set_name = kasprintf(GFP_KERNEL, "iscsi_boot%u", hostno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) if (!set_name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) boot_kset = iscsi_boot_create_kset(set_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) kfree(set_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) return boot_kset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) EXPORT_SYMBOL_GPL(iscsi_boot_create_host_kset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) * iscsi_boot_destroy_kset() - destroy kset and kobjects under it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) * @boot_kset: boot kset
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) * This will remove the kset and kobjects and attrs under it.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) void iscsi_boot_destroy_kset(struct iscsi_boot_kset *boot_kset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) struct iscsi_boot_kobj *boot_kobj, *tmp_kobj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) if (!boot_kset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) list_for_each_entry_safe(boot_kobj, tmp_kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) &boot_kset->kobj_list, list)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) iscsi_boot_remove_kobj(boot_kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) kset_unregister(boot_kset->kset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) kfree(boot_kset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) EXPORT_SYMBOL_GPL(iscsi_boot_destroy_kset);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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