static struct config_group *target_fabric_make_mappedlun(
struct config_group *group,
const char *name)
{
struct se_node_acl *se_nacl = container_of(group,
struct se_node_acl, acl_group);
struct se_portal_group *se_tpg = se_nacl->se_tpg;
struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
struct se_lun_acl *lacl;
struct config_item *acl_ci;
char *buf;
unsigned long mapped_lun;
int ret = 0;
acl_ci = &group->cg_item;
if (!(acl_ci)) {
printk(KERN_ERR "Unable to locatel acl_ci\n");
return NULL;
}
buf = kzalloc(strlen(name) + 1, GFP_KERNEL);
if (!(buf)) {
printk(KERN_ERR "Unable to allocate memory for name buf\n");
return ERR_PTR(-ENOMEM);
}
snprintf(buf, strlen(name) + 1, "%s", name);
/*
* Make sure user is creating iscsi/$IQN/$TPGT/acls/$INITIATOR/lun_$ID.
*/
if (strstr(buf, "lun_") != buf) {
printk(KERN_ERR "Unable to locate \"lun_\" from buf: %s"
" name: %s\n", buf, name);
ret = -EINVAL;
goto out;
}
/*
* Determine the Mapped LUN value. This is what the SCSI Initiator
* Port will actually see.
*/
if (strict_strtoul(buf + 4, 0, &mapped_lun) || mapped_lun > UINT_MAX) {
ret = -EINVAL;
goto out;
}
lacl = core_dev_init_initiator_node_lun_acl(se_tpg, mapped_lun,
config_item_name(acl_ci), &ret);
if (!(lacl))
goto out;
config_group_init_type_name(&lacl->se_lun_group, name,
&TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_cit);
kfree(buf);
return &lacl->se_lun_group;
out:
kfree(buf);
return ERR_PTR(ret);
}
static struct config_group *target_fabric_make_mappedlun(
struct config_group *group,
const char *name)
{
struct se_node_acl *se_nacl = container_of(group,
struct se_node_acl, acl_group);
struct se_portal_group *se_tpg = se_nacl->se_tpg;
struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
struct se_lun_acl *lacl;
struct config_item *acl_ci;
struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL;
char *buf;
unsigned long mapped_lun;
int ret = 0;
acl_ci = &group->cg_item;
if (!acl_ci) {
pr_err("Unable to locatel acl_ci\n");
return NULL;
}
buf = kzalloc(strlen(name) + 1, GFP_KERNEL);
if (!buf) {
pr_err("Unable to allocate memory for name buf\n");
return ERR_PTR(-ENOMEM);
}
snprintf(buf, strlen(name) + 1, "%s", name);
/*
* Make sure user is creating iscsi/$IQN/$TPGT/acls/$INITIATOR/lun_$ID.
*/
if (strstr(buf, "lun_") != buf) {
pr_err("Unable to locate \"lun_\" from buf: %s"
" name: %s\n", buf, name);
ret = -EINVAL;
goto out;
}
/*
* Determine the Mapped LUN value. This is what the SCSI Initiator
* Port will actually see.
*/
ret = kstrtoul(buf + 4, 0, &mapped_lun);
if (ret)
goto out;
if (mapped_lun > UINT_MAX) {
ret = -EINVAL;
goto out;
}
if (mapped_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) {
pr_err("Mapped LUN: %lu exceeds TRANSPORT_MAX_LUNS_PER_TPG"
"-1: %u for Target Portal Group: %u\n", mapped_lun,
TRANSPORT_MAX_LUNS_PER_TPG-1,
se_tpg->se_tpg_tfo->tpg_get_tag(se_tpg));
ret = -EINVAL;
goto out;
}
lacl = core_dev_init_initiator_node_lun_acl(se_tpg, se_nacl,
mapped_lun, &ret);
if (!lacl) {
ret = -EINVAL;
goto out;
}
lacl_cg = &lacl->se_lun_group;
lacl_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2,
GFP_KERNEL);
if (!lacl_cg->default_groups) {
pr_err("Unable to allocate lacl_cg->default_groups\n");
ret = -ENOMEM;
goto out;
}
config_group_init_type_name(&lacl->se_lun_group, name,
&TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_cit);
config_group_init_type_name(&lacl->ml_stat_grps.stat_group,
"statistics", &TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_stat_cit);
lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group;
lacl_cg->default_groups[1] = NULL;
ml_stat_grp = &lacl->ml_stat_grps.stat_group;
ml_stat_grp->default_groups = kmalloc(sizeof(struct config_group *) * 3,
GFP_KERNEL);
if (!ml_stat_grp->default_groups) {
pr_err("Unable to allocate ml_stat_grp->default_groups\n");
ret = -ENOMEM;
goto out;
}
target_stat_setup_mappedlun_default_groups(lacl);
kfree(buf);
return &lacl->se_lun_group;
out:
if (lacl_cg)
kfree(lacl_cg->default_groups);
kfree(buf);
return ERR_PTR(ret);
}
