/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2000 by Cisco Systems, Inc. All rights reserved. * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. * * iSCSI Software Initiator */ /* * Framework interface routines for iSCSI */ #include "iscsi.h" /* main header */ #include /* protocol structs */ #include /* ioctl interfaces */ #include "iscsi_targetparam.h" #include "persistent.h" #include #include #include #include "isns_client.h" #include "isns_protocol.h" #include #include #include #define ISCSI_NAME_VERSION "iSCSI Initiator v-1.55" #define MAX_GET_NAME_SIZE 1024 #define MAX_NAME_PROP_SIZE 256 #define UNDEFINED -1 #define ISCSI_DISC_DELAY 2 /* seconds */ /* * +--------------------------------------------------------------------+ * | iscsi globals | * +--------------------------------------------------------------------+ */ void *iscsi_state; kmutex_t iscsi_oid_mutex; uint32_t iscsi_oid; int iscsi_nop_delay = ISCSI_DEFAULT_NOP_DELAY; int iscsi_rx_window = ISCSI_DEFAULT_RX_WINDOW; int iscsi_rx_max_window = ISCSI_DEFAULT_RX_MAX_WINDOW; boolean_t iscsi_logging = B_FALSE; extern ib_boot_prop_t *iscsiboot_prop; extern int modrootloaded; extern struct bootobj rootfs; /* * +--------------------------------------------------------------------+ * | iscsi.c prototypes | * +--------------------------------------------------------------------+ */ static int iscsi_getinfo(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result); static int iscsi_attach(dev_info_t *dip, ddi_attach_cmd_t cmd); static int iscsi_detach(dev_info_t *dip, ddi_detach_cmd_t cmd); /* scsi_tran prototypes */ static int iscsi_tran_lun_init(dev_info_t *hba_dip, dev_info_t *lun_dip, scsi_hba_tran_t *hba_tran, struct scsi_device *sd); static int iscsi_tran_lun_probe(struct scsi_device *sd, int (*callback) ()); static struct scsi_pkt *iscsi_tran_init_pkt(struct scsi_address *ap, struct scsi_pkt *pkt, struct buf *bp, int cmdlen, int statuslen, int tgtlen, int flags, int (*callback) (), caddr_t arg); static void iscsi_tran_lun_free(dev_info_t *hba_dip, dev_info_t *lun_dip, scsi_hba_tran_t *hba_tran, struct scsi_device *sd); static int iscsi_tran_start(struct scsi_address *ap, struct scsi_pkt *pkt); static int iscsi_tran_abort(struct scsi_address *ap, struct scsi_pkt *pkt); static int iscsi_tran_reset(struct scsi_address *ap, int level); static int iscsi_tran_getcap(struct scsi_address *ap, char *cap, int whom); static int iscsi_tran_setcap(struct scsi_address *ap, char *cap, int value, int whom); static void iscsi_tran_destroy_pkt(struct scsi_address *ap, struct scsi_pkt *pkt); static void iscsi_tran_dmafree(struct scsi_address *ap, struct scsi_pkt *pkt); static void iscsi_tran_sync_pkt(struct scsi_address *ap, struct scsi_pkt *pkt); static void iscsi_tran_sync_pkt(struct scsi_address *ap, struct scsi_pkt *pkt); static int iscsi_tran_reset_notify(struct scsi_address *ap, int flag, void (*callback) (caddr_t), caddr_t arg); static int iscsi_tran_bus_config(dev_info_t *parent, uint_t flags, ddi_bus_config_op_t op, void *arg, dev_info_t **childp); static int iscsi_tran_bus_unconfig(dev_info_t *parent, uint_t flags, ddi_bus_config_op_t op, void *arg); static int iscsi_tran_get_name(struct scsi_device *sd, char *name, int len); static int iscsi_tran_get_bus_addr(struct scsi_device *sd, char *name, int len); /* bus_ops prototypes */ /* LINTED E_STATIC_UNUSED */ static ddi_intrspec_t iscsi_get_intrspec(dev_info_t *dip, dev_info_t *rdip, uint_t inumber); /* LINTED E_STATIC_UNUSED */ static int iscsi_add_intrspec(dev_info_t *dip, dev_info_t *rdip, ddi_intrspec_t intrspec, ddi_iblock_cookie_t *iblock_cookiep, ddi_idevice_cookie_t *idevice_cookiep, uint_t (*int_handler)(caddr_t int_handler_arg), caddr_t int_handler_arg, int kind); /* LINTED E_STATIC_UNUSED */ static void iscsi_remove_intrspec(dev_info_t *dip, dev_info_t *rdip, ddi_intrspec_t intrspec, ddi_iblock_cookie_t iblock_cookie); /* LINTED E_STATIC_UNUSED */ static int iscsi_ctl(dev_info_t *dip, dev_info_t *rdip, ddi_ctl_enum_t ctlop, void *arg, void *result); /* cb_ops prototypes */ static int iscsi_open(dev_t *devp, int flags, int otyp, cred_t *credp); static int iscsi_close(dev_t dev, int flag, int otyp, cred_t *credp); static int iscsi_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *credp, int *rvalp); int iscsi_get_persisted_param(uchar_t *name, iscsi_param_get_t *ipgp, iscsi_login_params_t *params); static void iscsi_override_target_default(iscsi_hba_t *ihp, iscsi_param_get_t *ipg); /* scsi_tran helpers */ static int iscsi_virt_lun_init(dev_info_t *hba_dip, dev_info_t *lun_dip, scsi_hba_tran_t *hba_tran, struct scsi_device *sd); static int iscsi_phys_lun_init(dev_info_t *hba_dip, dev_info_t *lun_dip, scsi_hba_tran_t *hba_tran, struct scsi_device *sd); static int iscsi_i_commoncap(struct scsi_address *ap, char *cap, int val, int lunonly, int doset); static void iscsi_get_name_to_iqn(char *name, int name_max_len); static void iscsi_get_name_from_iqn(char *name, int name_max_len); static boolean_t iscsi_cmp_boot_sess_oid(iscsi_hba_t *ihp, uint32_t oid); /* iscsi initiator service helpers */ static boolean_t iscsi_enter_service_zone(iscsi_hba_t *ihp, uint32_t status); static void iscsi_exit_service_zone(iscsi_hba_t *ihp, uint32_t status); static void iscsi_check_miniroot(iscsi_hba_t *ihp); static void iscsi_get_tunable_default(iscsi_tunable_object_t *param); static int iscsi_get_persisted_tunable_param(uchar_t *name, iscsi_tunable_object_t *tpsg); static void iscsi_set_default_tunable_params(iscsi_tunable_params_t *params); /* struct helpers prototypes */ /* * At this point this driver doesn't need this structure because nothing * is done during the open, close or ioctl. Code put in place because * some admin related work might be done in the ioctl routine. */ static struct cb_ops iscsi_cb_ops = { iscsi_open, /* open */ iscsi_close, /* close */ nodev, /* strategy */ nodev, /* print */ nodev, /* dump */ nodev, /* read */ nodev, /* write */ iscsi_ioctl, /* ioctl */ nodev, /* devmap */ nodev, /* mmap */ nodev, /* segmap */ nochpoll, /* poll */ ddi_prop_op, /* prop_op */ NULL, /* streamtab */ D_NEW | D_MP | D_HOTPLUG, /* flags */ CB_REV, /* cb_rev */ nodev, /* aread */ nodev, /* awrite */ }; static struct dev_ops iscsi_dev_ops = { DEVO_REV, /* devo_rev */ 0, /* refcnt */ iscsi_getinfo, /* getinfo */ nulldev, /* identify */ nulldev, /* probe */ iscsi_attach, /* attach */ iscsi_detach, /* detach */ nodev, /* reset */ &iscsi_cb_ops, /* driver operations */ NULL, /* bus ops */ NULL, /* power management */ ddi_quiesce_not_needed, /* quiesce */ }; static struct modldrv modldrv = { &mod_driverops, /* drv_modops */ ISCSI_NAME_VERSION, /* drv_linkinfo */ &iscsi_dev_ops /* drv_dev_ops */ }; static struct modlinkage modlinkage = { MODREV_1, /* ml_rev */ &modldrv, /* ml_linkage[] */ NULL /* NULL termination */ }; /* * This structure is bogus. scsi_hba_attach_setup() requires, as in the kernel * will panic if you don't pass this in to the routine, this information. * Need to determine what the actual impact to the system is by providing * this information if any. Since dma allocation is done in pkt_init it may * not have any impact. These values are straight from the Writing Device * Driver manual. */ static ddi_dma_attr_t iscsi_dma_attr = { DMA_ATTR_V0, /* ddi_dma_attr version */ 0, /* low address */ 0xffffffff, /* high address */ 0x00ffffff, /* counter upper bound */ 1, /* alignment requirements */ 0x3f, /* burst sizes */ 1, /* minimum DMA access */ 0xffffffff, /* maximum DMA access */ (1 << 24) - 1, /* segment boundary restrictions */ 1, /* scater/gather list length */ 512, /* device granularity */ 0 /* DMA flags */ }; /* * _init - General driver init entry */ int _init(void) { int rval = 0; iscsi_net_init(); mutex_init(&iscsi_oid_mutex, NULL, MUTEX_DRIVER, NULL); iscsi_oid = ISCSI_INITIATOR_OID; /* * Set up the soft state structures. If this driver is actually * being attached to the system then we'll have at least one * HBA/NIC used. */ rval = ddi_soft_state_init(&iscsi_state, sizeof (iscsi_hba_t), 1); if (rval != 0) { iscsi_net_fini(); goto init_done; } rval = scsi_hba_init(&modlinkage); if (rval != 0) { ddi_soft_state_fini(&iscsi_state); iscsi_net_fini(); goto init_done; } rval = mod_install(&modlinkage); if (rval != 0) { ddi_soft_state_fini(&iscsi_state); scsi_hba_fini(&modlinkage); iscsi_net_fini(); goto init_done; } (void) iscsi_door_ini(); init_done: return (rval); } /* * _fini - General driver destructor entry */ int _fini(void) { int rval = 0; rval = mod_remove(&modlinkage); if (rval == 0) { scsi_hba_fini(&modlinkage); ddi_soft_state_fini(&iscsi_state); mutex_destroy(&iscsi_oid_mutex); (void) iscsi_door_term(); iscsi_net_fini(); } return (rval); } /* * _info - General driver info entry */ int _info(struct modinfo *mp) { int rval = 0; rval = mod_info(&modlinkage, mp); return (rval); } /* * +--------------------------------------------------------------------+ * | Start of dev_ops routines | * +--------------------------------------------------------------------+ */ /* * iscsi_getinfo - returns general driver information */ /* ARGSUSED */ static int iscsi_getinfo(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result) { int rval = DDI_SUCCESS; int instance = getminor((dev_t)arg); iscsi_hba_t *ip; switch (infocmd) { case DDI_INFO_DEVT2DEVINFO: if ((ip = ddi_get_soft_state(iscsi_state, instance)) == NULL) { return (DDI_FAILURE); } *result = ip->hba_dip; if (ip->hba_dip == NULL) rval = DDI_FAILURE; else rval = DDI_SUCCESS; break; case DDI_INFO_DEVT2INSTANCE: *result = (void *)(uintptr_t)instance; rval = DDI_SUCCESS; break; default: rval = DDI_FAILURE; break; } return (rval); } /* * iscsi_attach -- Attach instance of an iSCSI HBA. We * will attempt to create our HBA and register it with * scsi_vhci. If it's not possible to create the HBA * or register with vhci we will fail the attach. */ static int iscsi_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) { int rval = DDI_SUCCESS; int instance = ddi_get_instance(dip); iscsi_hba_t *ihp = NULL; scsi_hba_tran_t *tran = NULL; char init_port_name[MAX_NAME_PROP_SIZE]; switch (cmd) { case DDI_ATTACH: /* create iSCSH HBA devctl device node */ if (ddi_create_minor_node(dip, ISCSI_DEVCTL, S_IFCHR, 0, DDI_PSEUDO, 0) == DDI_SUCCESS) { /* allocate HBA soft state */ if (ddi_soft_state_zalloc(iscsi_state, instance) != DDI_SUCCESS) { ddi_remove_minor_node(dip, NULL); rval = DDI_FAILURE; break; } /* get reference to soft state */ if ((ihp = (iscsi_hba_t *)ddi_get_soft_state( iscsi_state, instance)) == NULL) { ddi_remove_minor_node(dip, NULL); ddi_soft_state_free(iscsi_state, instance); rval = DDI_FAILURE; break; } /* init HBA mutex used to protect discovery events */ mutex_init(&ihp->hba_discovery_events_mutex, NULL, MUTEX_DRIVER, NULL); /* Get LDI ident */ rval = ldi_ident_from_dip(dip, &ihp->hba_li); ASSERT(rval == 0); /* Failure indicates invalid arg */ /* init HBA mutex used to protect service status */ mutex_init(&ihp->hba_service_lock, NULL, MUTEX_DRIVER, NULL); cv_init(&ihp->hba_service_cv, NULL, CV_DRIVER, NULL); /* * init SendTargets semaphore that is used to allow * only one operation at a time */ sema_init(&ihp->hba_sendtgts_semaphore, 1, NULL, SEMA_DRIVER, NULL); ihp->hba_sess_list = NULL; rw_init(&ihp->hba_sess_list_rwlock, NULL, RW_DRIVER, NULL); /* allocate scsi_hba_tran */ if ((tran = scsi_hba_tran_alloc(dip, SCSI_HBA_CANSLEEP)) == NULL) { ddi_remove_minor_node(dip, NULL); goto iscsi_attach_failed2; } /* soft state setup */ ihp->hba_sig = ISCSI_SIG_HBA; ihp->hba_tran = tran; ihp->hba_dip = dip; if (iscsiboot_prop == NULL) { ihp->hba_service_status = ISCSI_SERVICE_DISABLED; ihp->hba_service_status_overwrite = B_FALSE; } else { ihp->hba_service_status = ISCSI_SERVICE_ENABLED; ihp->hba_service_status_overwrite = B_TRUE; } ihp->hba_service_client_count = 0; mutex_enter(&iscsi_oid_mutex); ihp->hba_oid = iscsi_oid++; mutex_exit(&iscsi_oid_mutex); ihp->hba_name[0] = '\0'; ihp->hba_name_length = 0; ihp->hba_alias_length = 0; ihp->hba_alias[0] = '\0'; iscsi_net->tweaks.rcvbuf = ddi_prop_get_int( DDI_DEV_T_ANY, ihp->hba_dip, 0, "so-rcvbuf", ISCSI_SOCKET_RCVBUF_SIZE); iscsi_net->tweaks.sndbuf = ddi_prop_get_int( DDI_DEV_T_ANY, ihp->hba_dip, 0, "so-sndbuf", ISCSI_SOCKET_SNDBUF_SIZE); iscsi_net->tweaks.nodelay = ddi_prop_get_int( DDI_DEV_T_ANY, ihp->hba_dip, 0, "tcp-nodelay", ISCSI_TCP_NODELAY_DEFAULT); iscsi_net->tweaks.conn_notify_threshold = ddi_prop_get_int(DDI_DEV_T_ANY, ihp->hba_dip, 0, "tcp-conn-notify-threshold", ISCSI_TCP_CNOTIFY_THRESHOLD_DEFAULT); iscsi_net->tweaks.conn_abort_threshold = ddi_prop_get_int(DDI_DEV_T_ANY, ihp->hba_dip, 0, "tcp-conn-abort-threshold", ISCSI_TCP_CABORT_THRESHOLD_DEFAULT); iscsi_net->tweaks.abort_threshold = ddi_prop_get_int( DDI_DEV_T_ANY, ihp->hba_dip, 0, "tcp-abort-threshold", ISCSI_TCP_ABORT_THRESHOLD_DEFAULT); ihp->hba_config_storm_delay = ddi_prop_get_int( DDI_DEV_T_ANY, ihp->hba_dip, 0, "config-storm-delay", ISCSI_CONFIG_STORM_DELAY_DEFAULT); (void) ddi_prop_update_int(DDI_DEV_T_NONE, ihp->hba_dip, "so-rcvbuf", iscsi_net->tweaks.rcvbuf); (void) ddi_prop_update_int(DDI_DEV_T_NONE, ihp->hba_dip, "so-sndbuf", iscsi_net->tweaks.sndbuf); (void) ddi_prop_update_int(DDI_DEV_T_NONE, ihp->hba_dip, "tcp-nodelay", iscsi_net->tweaks.nodelay); (void) ddi_prop_update_int(DDI_DEV_T_NONE, ihp->hba_dip, "tcp-conn-notify-threshold", iscsi_net->tweaks.conn_notify_threshold); (void) ddi_prop_update_int(DDI_DEV_T_NONE, ihp->hba_dip, "tcp-conn-abort-threshold", iscsi_net->tweaks.conn_abort_threshold); (void) ddi_prop_update_int(DDI_DEV_T_NONE, ihp->hba_dip, "tcp-abort-threshold", iscsi_net->tweaks.abort_threshold); (void) ddi_prop_update_int(DDI_DEV_T_NONE, ihp->hba_dip, "config-storm-delay", ihp->hba_config_storm_delay); /* setup hba defaults */ iscsi_set_default_login_params(&ihp->hba_params); iscsi_set_default_tunable_params( &ihp->hba_tunable_params); /* setup minimal initiator params */ iscsid_set_default_initiator_node_settings(ihp, B_TRUE); /* hba set up */ tran->tran_hba_private = ihp; tran->tran_tgt_private = NULL; tran->tran_tgt_init = iscsi_tran_lun_init; tran->tran_tgt_probe = iscsi_tran_lun_probe; tran->tran_tgt_free = iscsi_tran_lun_free; tran->tran_start = iscsi_tran_start; tran->tran_abort = iscsi_tran_abort; tran->tran_reset = iscsi_tran_reset; tran->tran_getcap = iscsi_tran_getcap; tran->tran_setcap = iscsi_tran_setcap; tran->tran_init_pkt = iscsi_tran_init_pkt; tran->tran_destroy_pkt = iscsi_tran_destroy_pkt; tran->tran_dmafree = iscsi_tran_dmafree; tran->tran_sync_pkt = iscsi_tran_sync_pkt; tran->tran_reset_notify = iscsi_tran_reset_notify; tran->tran_bus_config = iscsi_tran_bus_config; tran->tran_bus_unconfig = iscsi_tran_bus_unconfig; tran->tran_get_name = iscsi_tran_get_name; tran->tran_get_bus_addr = iscsi_tran_get_bus_addr; tran->tran_interconnect_type = INTERCONNECT_ISCSI; /* register scsi hba with scsa */ if (scsi_hba_attach_setup(dip, &iscsi_dma_attr, tran, SCSI_HBA_TRAN_CLONE) != DDI_SUCCESS) { goto iscsi_attach_failed1; } /* register scsi hba with mdi (MPxIO/vhci) */ if (mdi_phci_register(MDI_HCI_CLASS_SCSI, dip, 0) != MDI_SUCCESS) { ihp->hba_mpxio_enabled = B_FALSE; } else { ihp->hba_mpxio_enabled = B_TRUE; } (void) iscsi_hba_kstat_init(ihp); /* Initialize targetparam list */ iscsi_targetparam_init(); /* Initialize ISID */ ihp->hba_isid[0] = ISCSI_SUN_ISID_0; ihp->hba_isid[1] = ISCSI_SUN_ISID_1; ihp->hba_isid[2] = ISCSI_SUN_ISID_2; ihp->hba_isid[3] = ISCSI_SUN_ISID_3; ihp->hba_isid[4] = ISCSI_SUN_ISID_4; ihp->hba_isid[5] = ISCSI_SUN_ISID_5; /* Setup iSNS transport services and client */ isns_client_init(); /* * initialize persistent store, * or boot target info in case of iscsi boot */ ihp->hba_persistent_loaded = B_FALSE; if (iscsid_init(ihp) == B_FALSE) { goto iscsi_attach_failed0; } /* Setup init_port_name for MPAPI */ (void) snprintf(init_port_name, MAX_NAME_PROP_SIZE, "%s,%02x%02x%02x%02x%02x%02x", (char *)ihp->hba_name, ihp->hba_isid[0], ihp->hba_isid[1], ihp->hba_isid[2], ihp->hba_isid[3], ihp->hba_isid[4], ihp->hba_isid[5]); if (ddi_prop_update_string(DDI_DEV_T_NONE, dip, SCSI_ADDR_PROP_INITIATOR_PORT, init_port_name) != DDI_PROP_SUCCESS) { cmn_err(CE_WARN, "iscsi_attach: Creating " SCSI_ADDR_PROP_INITIATOR_PORT " property on iSCSI " "HBA(%s) with dip(%d) Failed", (char *)ihp->hba_name, ddi_get_instance(dip)); } ddi_report_dev(dip); } else { rval = DDI_FAILURE; } break; iscsi_attach_failed0: isns_client_cleanup(); if (ihp->stats.ks) { (void) iscsi_hba_kstat_term(ihp); } if (ihp->hba_mpxio_enabled == B_TRUE) { (void) mdi_phci_unregister(dip, 0); } (void) scsi_hba_detach(ihp->hba_dip); iscsi_attach_failed1: ddi_remove_minor_node(dip, NULL); ddi_prop_remove_all(ihp->hba_dip); scsi_hba_tran_free(tran); iscsi_attach_failed2: cv_destroy(&ihp->hba_service_cv); mutex_destroy(&ihp->hba_service_lock); mutex_destroy(&ihp->hba_discovery_events_mutex); sema_destroy(&ihp->hba_sendtgts_semaphore); rw_destroy(&ihp->hba_sess_list_rwlock); ddi_soft_state_free(iscsi_state, instance); rval = DDI_FAILURE; break; case DDI_RESUME: break; default: rval = DDI_FAILURE; } if (rval != DDI_SUCCESS) { cmn_err(CE_WARN, "iscsi driver unable to attach " "hba instance %d", instance); } return (rval); } /* * iscsi_detach - called on unload of hba instance */ static int iscsi_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) { int rval = DDI_SUCCESS; scsi_hba_tran_t *tran = NULL; iscsi_hba_t *ihp = NULL; iscsi_hba_t *ihp_check = NULL; int instance; char *init_node_name; instance = ddi_get_instance(dip); switch (cmd) { case DDI_DETACH: if (!(tran = (scsi_hba_tran_t *)ddi_get_driver_private(dip))) { rval = DDI_SUCCESS; break; } if ((ihp = (iscsi_hba_t *)tran->tran_hba_private) == NULL) { rval = DDI_FAILURE; break; } /* * Validate that what is stored by the DDI framework is still * the same state structure referenced by the SCSI framework */ ihp_check = ddi_get_soft_state(iscsi_state, instance); if (ihp_check != ihp) { rval = DDI_FAILURE; break; } /* If a session exists we can't safely detach */ rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); if (ihp->hba_sess_list != NULL) { rw_exit(&ihp->hba_sess_list_rwlock); rval = DDI_FAILURE; break; } rw_exit(&ihp->hba_sess_list_rwlock); /* Disable all discovery services */ if (iscsid_disable_discovery(ihp, ISCSI_ALL_DISCOVERY_METHODS) == B_FALSE) { /* Disable failed. Fail detach */ rval = DDI_FAILURE; break; } /* Deregister from iSNS server(s). */ init_node_name = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); if (persistent_initiator_name_get(init_node_name, ISCSI_MAX_NAME_LEN) == B_TRUE) { if (strlen(init_node_name) > 0) { (void) isns_dereg(ihp->hba_isid, (uint8_t *)init_node_name); } } kmem_free(init_node_name, ISCSI_MAX_NAME_LEN); init_node_name = NULL; /* Cleanup iSNS Client */ isns_client_cleanup(); iscsi_targetparam_cleanup(); /* Cleanup iscsid resources */ iscsid_fini(); if (rval != DDI_SUCCESS) { break; } /* kstat hba. destroy */ KSTAT_DEC_HBA_CNTR_SESS(ihp); if (ihp->hba_mpxio_enabled == B_TRUE) { (void) mdi_phci_unregister(dip, 0); } ddi_remove_minor_node(dip, NULL); ddi_prop_remove_all(ihp->hba_dip); ldi_ident_release(ihp->hba_li); cv_destroy(&ihp->hba_service_cv); mutex_destroy(&ihp->hba_service_lock); mutex_destroy(&ihp->hba_discovery_events_mutex); rw_destroy(&ihp->hba_sess_list_rwlock); (void) iscsi_hba_kstat_term(ihp); (void) scsi_hba_detach(dip); if (tran != NULL) { scsi_hba_tran_free(tran); } ddi_soft_state_free(iscsi_state, instance); break; default: break; } if (rval != DDI_SUCCESS) { cmn_err(CE_WARN, "iscsi driver unable to " "detach hba instance %d", instance); } return (rval); } /* * +--------------------------------------------------------------------+ * | End of dev_ops routines | * +--------------------------------------------------------------------+ */ /* * +--------------------------------------------------------------------+ * | scsi_tran(9E) routines | * +--------------------------------------------------------------------+ */ /* * iscsi_tran_lun_init - Find target device based on SCSI device * Based on the information given (SCSI device, target dev_info) find * the target iSCSI device and put a pointer to that information in * the scsi_hba_tran_t structure. */ static int iscsi_tran_lun_init(dev_info_t *hba_dip, dev_info_t *lun_dip, scsi_hba_tran_t *hba_tran, struct scsi_device *sd) { int rval = 0; int type = 0; ASSERT(hba_tran->tran_hba_private != NULL); /* * Child node is getting initialized. Look at the mpxio component * type on the child device to see if this device is mpxio managed * or not. */ type = mdi_get_component_type(lun_dip); if (type != MDI_COMPONENT_CLIENT) { rval = iscsi_phys_lun_init(hba_dip, lun_dip, hba_tran, sd); } else { rval = iscsi_virt_lun_init(hba_dip, lun_dip, hba_tran, sd); } return (rval); } /* * iscsi_tran_lun_probe - This function didn't need to be implemented. * We could have left NULL in the tran table. Since this isn't a * performance path this seems safe. We are just wrappering the * function so we can see the call go through if we have debugging * enabled. */ static int iscsi_tran_lun_probe(struct scsi_device *sd, int (*callback) ()) { int rval = 0; rval = scsi_hba_probe(sd, callback); return (rval); } /* * iscsi_init_pkt - Allocate SCSI packet and fill in required info. */ /* ARGSUSED */ static struct scsi_pkt * iscsi_tran_init_pkt(struct scsi_address *ap, struct scsi_pkt *pkt, struct buf *bp, int cmdlen, int statuslen, int tgtlen, int flags, int (*callback) (), caddr_t arg) { iscsi_lun_t *ilp; iscsi_cmd_t *icmdp; ASSERT(ap != NULL); ASSERT(callback == NULL_FUNC || callback == SLEEP_FUNC); /* * The software stack doesn't have DMA which means the iSCSI * protocol layer will be doing a bcopy from bp to outgoing * streams buffers. Make sure that the buffer is mapped in * so that the copy won't panic the system. */ if (bp && (bp->b_bcount != 0) && bp_mapin_common(bp, (callback == NULL_FUNC) ? VM_NOSLEEP : VM_SLEEP) == NULL) { return (NULL); } ilp = (iscsi_lun_t *)ap->a_hba_tran->tran_tgt_private; ASSERT(ilp != NULL); if (pkt == NULL) { pkt = scsi_hba_pkt_alloc(ilp->lun_sess->sess_hba->hba_dip, ap, cmdlen, statuslen, tgtlen, sizeof (iscsi_cmd_t), callback, arg); if (pkt == NULL) { return (NULL); } icmdp = (iscsi_cmd_t *)pkt->pkt_ha_private; icmdp->cmd_sig = ISCSI_SIG_CMD; icmdp->cmd_state = ISCSI_CMD_STATE_FREE; icmdp->cmd_lun = ilp; icmdp->cmd_type = ISCSI_CMD_TYPE_SCSI; /* add the report lun addressing type on to the lun */ icmdp->cmd_un.scsi.lun = ilp->lun_addr_type << 14; icmdp->cmd_un.scsi.lun = icmdp->cmd_un.scsi.lun | ilp->lun_num; icmdp->cmd_un.scsi.pkt = pkt; icmdp->cmd_un.scsi.bp = bp; icmdp->cmd_un.scsi.cmdlen = cmdlen; icmdp->cmd_un.scsi.statuslen = statuslen; icmdp->cmd_crc_error_seen = B_FALSE; icmdp->cmd_misc_flags = 0; if (flags & PKT_XARQ) { icmdp->cmd_misc_flags |= ISCSI_CMD_MISCFLAG_XARQ; } idm_sm_audit_init(&icmdp->cmd_state_audit); mutex_init(&icmdp->cmd_mutex, NULL, MUTEX_DRIVER, NULL); cv_init(&icmdp->cmd_completion, NULL, CV_DRIVER, NULL); pkt->pkt_address = *ap; pkt->pkt_comp = (void (*)())NULL; pkt->pkt_flags = 0; pkt->pkt_time = 0; pkt->pkt_resid = 0; pkt->pkt_statistics = 0; pkt->pkt_reason = 0; } return (pkt); } /* * iscsi_tran_lun_free - Free a SCSI LUN */ static void iscsi_tran_lun_free(dev_info_t *hba_dip, dev_info_t *lun_dip, scsi_hba_tran_t *hba_tran, struct scsi_device *sd) { iscsi_lun_t *ilp = NULL; ASSERT(hba_dip != NULL); ASSERT(lun_dip != NULL); ASSERT(hba_tran != NULL); ASSERT(sd != NULL); ilp = (iscsi_lun_t *)hba_tran->tran_tgt_private; ASSERT(ilp != NULL); (void) mdi_prop_remove(ilp->lun_pip, NULL); } /* * iscsi_start -- Start a SCSI transaction based on the packet * This will attempt to add the icmdp to the pending queue * for the connection and kick the queue. If the enqueue * fails that means the queue is full. */ static int iscsi_tran_start(struct scsi_address *ap, struct scsi_pkt *pkt) { iscsi_lun_t *ilp = NULL; iscsi_sess_t *isp = NULL; iscsi_cmd_t *icmdp = NULL; uint_t flags; ASSERT(ap != NULL); ASSERT(pkt != NULL); ilp = (iscsi_lun_t *)ap->a_hba_tran->tran_tgt_private; isp = (iscsi_sess_t *)ilp->lun_sess; icmdp = (iscsi_cmd_t *)pkt->pkt_ha_private; flags = pkt->pkt_flags; ASSERT(ilp != NULL); ASSERT(isp != NULL); ASSERT(icmdp != NULL); /* * If the session is in the FREE state then * all connections are down and retries have * been exhausted. Fail command with fatal error. */ rw_enter(&isp->sess_state_rwlock, RW_READER); if (isp->sess_state == ISCSI_SESS_STATE_FREE) { rw_exit(&isp->sess_state_rwlock); return (TRAN_FATAL_ERROR); } /* * If we haven't received data from the target in the * max specified period something is wrong with the * transport. Fail IO with FATAL_ERROR. */ if (isp->sess_rx_lbolt + SEC_TO_TICK(iscsi_rx_max_window) < ddi_get_lbolt()) { rw_exit(&isp->sess_state_rwlock); return (TRAN_FATAL_ERROR); } /* * If the session is not in LOGGED_IN then we have * no connections LOGGED_IN, but we haven't exhuasted * our retries. Fail the command with busy so the * caller might try again later. Once retries are * exhausted the state machine will move us to FREE. */ if (isp->sess_state != ISCSI_SESS_STATE_LOGGED_IN) { rw_exit(&isp->sess_state_rwlock); return (TRAN_BUSY); } /* * If we haven't received data from the target in the * specified period something is probably wrong with * the transport. Just return back BUSY until either * the problem is resolved of the transport fails. */ if (isp->sess_rx_lbolt + SEC_TO_TICK(iscsi_rx_window) < ddi_get_lbolt()) { rw_exit(&isp->sess_state_rwlock); return (TRAN_BUSY); } /* reset cmd values in case upper level driver is retrying cmd */ icmdp->cmd_prev = icmdp->cmd_next = NULL; icmdp->cmd_crc_error_seen = B_FALSE; icmdp->cmd_lbolt_pending = icmdp->cmd_lbolt_active = icmdp->cmd_lbolt_aborting = icmdp->cmd_lbolt_timeout = (clock_t)NULL; icmdp->cmd_itt = icmdp->cmd_ttt = 0; icmdp->cmd_un.scsi.abort_icmdp = NULL; mutex_enter(&isp->sess_queue_pending.mutex); iscsi_cmd_state_machine(icmdp, ISCSI_CMD_EVENT_E1, isp); mutex_exit(&isp->sess_queue_pending.mutex); rw_exit(&isp->sess_state_rwlock); /* * If this packet doesn't have FLAG_NOINTR set, it could have * already run to completion (and the memory freed) at this * point, so check our local copy of pkt_flags. Otherwise we * have to wait for completion before returning to the caller. */ if (flags & FLAG_NOINTR) { mutex_enter(&icmdp->cmd_mutex); while ((icmdp->cmd_state != ISCSI_CMD_STATE_COMPLETED) || (icmdp->cmd_un.scsi.r2t_icmdp != NULL) || (icmdp->cmd_un.scsi.abort_icmdp != NULL) || (icmdp->cmd_un.scsi.r2t_more == B_TRUE)) { cv_wait(&icmdp->cmd_completion, &icmdp->cmd_mutex); } icmdp->cmd_state = ISCSI_CMD_STATE_FREE; mutex_exit(&icmdp->cmd_mutex); } return (TRAN_ACCEPT); } /* * iscsi_tran_abort - Called when an upper level application * or driver wants to kill a scsi_pkt that was already sent to * this driver. */ /* ARGSUSED */ static int iscsi_tran_abort(struct scsi_address *ap, struct scsi_pkt *pkt) { return (0); } /* * iscsi_tran_reset - Reset target at either BUS, TARGET, or LUN * level. This will require the issuing of a task management * command down to the target/lun. */ static int iscsi_tran_reset(struct scsi_address *ap, int level) { int rval = ISCSI_STATUS_INTERNAL_ERROR; iscsi_sess_t *isp = NULL; iscsi_lun_t *ilp = NULL; ilp = (iscsi_lun_t *)ap->a_hba_tran->tran_tgt_private; ASSERT(ilp != NULL); isp = ilp->lun_sess; ASSERT(isp != NULL); switch (level) { case RESET_LUN: /* reset attempt will block until attempt is complete */ rval = iscsi_handle_reset(isp, level, ilp); break; case RESET_BUS: /* * What are we going to realy reset the ethernet * network!? Just fall through to a target reset. */ case RESET_TARGET: /* reset attempt will block until attempt is complete */ rval = iscsi_handle_reset(isp, level, NULL); break; case RESET_ALL: default: break; } return (ISCSI_SUCCESS(rval) ? 1 : 0); } /* * iscsi_tran_getcap - Get target/lun capabilities. */ static int iscsi_tran_getcap(struct scsi_address *ap, char *cap, int whom) { return (iscsi_i_commoncap(ap, cap, 0, whom, 0)); } /* * iscsi_tran_setcap - Set target/lun capabilities. */ /* ARGSUSED */ static int iscsi_tran_setcap(struct scsi_address *ap, char *cap, int value, int whom) { return (iscsi_i_commoncap(ap, cap, value, whom, 1)); } /* * iscsi_tran_destroy_pkt - Clean up packet */ static void iscsi_tran_destroy_pkt(struct scsi_address *ap, struct scsi_pkt *pkt) { iscsi_cmd_t *icmdp; icmdp = (iscsi_cmd_t *)pkt->pkt_ha_private; ASSERT(icmdp != NULL); ASSERT(icmdp->cmd_sig == ISCSI_SIG_CMD); ASSERT(icmdp->cmd_state == ISCSI_CMD_STATE_FREE); mutex_destroy(&icmdp->cmd_mutex); cv_destroy(&icmdp->cmd_completion); scsi_hba_pkt_free(ap, pkt); } /* * iscsi_tran_dmafree - This is a software driver, NO DMA */ /* ARGSUSED */ static void iscsi_tran_dmafree(struct scsi_address *ap, struct scsi_pkt *pkt) { /* * The iSCSI interface doesn't deal with DMA */ } /* * iscsi_tran_sync_pkt - This is a software driver, NO DMA */ /* ARGSUSED */ static void iscsi_tran_sync_pkt(struct scsi_address *ap, struct scsi_pkt *pkt) { /* * The iSCSI interface doesn't deal with DMA */ } /* * iscsi_tran_reset_notify - We don't support BUS_RESET so there * is no point in support callback. */ /* ARGSUSED */ static int iscsi_tran_reset_notify(struct scsi_address *ap, int flag, void (*callback) (caddr_t), caddr_t arg) { /* * We never do BUS_RESETS so allowing this call * back to register has no point? */ return (DDI_SUCCESS); } /* * iscsi_tran_bus_config - on demand device configuration * * iscsi_tran_bus_config is called by the NDI layer at the completion * of a dev_node creation. There are two primary cases defined in this * function. The first is BUS_CONFIG_ALL. In this case the NDI is trying * to identify that targets/luns are available configured at that point * in time. It is safe to just complete the process succcessfully. The * second case is a new case that was defined in S10 for devfs. BUS_CONFIG_ONE * this is to help driver the top down discovery instead of bottom up. If * we receive a BUS_CONFIG_ONE we should check to see if the exists * if so complete successfull processing. Otherwise we should call the * deamon and see if we can plumb the . If it is possible to plumb the * block until plumbing is complete. In both cases of being able to * plumb or not continue with successfull processing. */ static int iscsi_tran_bus_config(dev_info_t *parent, uint_t flags, ddi_bus_config_op_t op, void *arg, dev_info_t **childp) { int rval = NDI_SUCCESS; iscsi_hba_t *ihp = NULL; int iflags = flags; char *name = NULL; char *ptr = NULL; boolean_t config_root = B_FALSE; /* get reference to soft state */ ihp = (iscsi_hba_t *)ddi_get_soft_state(iscsi_state, ddi_get_instance(parent)); if (ihp == NULL) { return (NDI_FAILURE); } iscsi_check_miniroot(ihp); if ((modrootloaded == 0) && (iscsiboot_prop != NULL)) { config_root = B_TRUE; } if (config_root == B_FALSE) { if (iscsi_client_request_service(ihp) == B_FALSE) { return (NDI_FAILURE); } } /* lock so only one config operation occrs */ sema_p(&iscsid_config_semaphore); switch (op) { case BUS_CONFIG_ONE: /* parse target name out of name given */ if ((ptr = strchr((char *)arg, '@')) == NULL) { rval = NDI_FAILURE; break; } ptr++; /* move past '@' */ name = kmem_zalloc(MAX_GET_NAME_SIZE, KM_SLEEP); (void) strncpy(name, ptr, MAX_GET_NAME_SIZE); /* We need to strip the LUN */ if ((ptr = strchr(name, ',')) == NULL) { rval = NDI_FAILURE; kmem_free(name, MAX_GET_NAME_SIZE); name = NULL; break; } /* We also need to strip the 4 bytes of hex TPGT */ ptr -= 4; if (ptr <= name) { rval = NDI_FAILURE; kmem_free(name, MAX_GET_NAME_SIZE); name = NULL; break; } *ptr = '\0'; /* NULL terminate */ /* translate name back to original iSCSI name */ iscsi_get_name_to_iqn(name, MAX_GET_NAME_SIZE); /* configure target, skip 4 byte ISID */ iscsid_config_one(ihp, (name+4), B_TRUE); kmem_free(name, MAX_GET_NAME_SIZE); name = NULL; /* * DDI group instructed us to use this flag. */ iflags |= NDI_MDI_FALLBACK; break; case BUS_CONFIG_DRIVER: /* FALLTHRU */ case BUS_CONFIG_ALL: iscsid_config_all(ihp, B_TRUE); break; default: rval = NDI_FAILURE; break; } if (rval == NDI_SUCCESS) { rval = ndi_busop_bus_config(parent, iflags, op, arg, childp, 0); } sema_v(&iscsid_config_semaphore); if (config_root == B_FALSE) { iscsi_client_release_service(ihp); } return (rval); } /* * iscsi_tran_bus_unconfig - on demand device unconfiguration * * Called by the os framework under low resource situations. * It will attempt to unload our minor nodes (logical units * ndi/mdi nodes). */ static int iscsi_tran_bus_unconfig(dev_info_t *parent, uint_t flag, ddi_bus_config_op_t op, void *arg) { int rval = NDI_SUCCESS; iscsi_hba_t *ihp = NULL; /* get reference to soft state */ ihp = (iscsi_hba_t *)ddi_get_soft_state(iscsi_state, ddi_get_instance(parent)); if (ihp == NULL) { return (NDI_FAILURE); } if (iscsi_client_request_service(ihp) == B_FALSE) { rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); if (ihp->hba_sess_list != NULL) { rval = NDI_FAILURE; } rw_exit(&ihp->hba_sess_list_rwlock); return (rval); } rval = ndi_busop_bus_unconfig(parent, flag, op, arg); iscsi_client_release_service(ihp); return (rval); } /* * iscsi_tran_get_name - create private /devices name for LUN * * This creates the in /devices/iscsi/@ * path. For this we return the , * Where is an as defined by the iSCSI * specification. We do modify the name slightly so that it still * complies with the IEEE naming scheme. This means that we * will substitute out the ':', '@', ... and other reserved characters * defined in the IEEE definition with '%' * This routine is indirectly called by iscsi_lun_create_xxx. These * calling routines must prevent the session and lun lists from changing * during this routine. */ static int iscsi_tran_get_name(struct scsi_device *sd, char *name, int len) { int target = 0; int lun = 0; iscsi_hba_t *ihp = NULL; iscsi_sess_t *isp = NULL; iscsi_lun_t *ilp = NULL; dev_info_t *lun_dip = NULL; ASSERT(sd != NULL); ASSERT(name != NULL); lun_dip = sd->sd_dev; ASSERT(lun_dip != NULL); /* get reference to soft state */ ihp = (iscsi_hba_t *)ddi_get_soft_state(iscsi_state, ddi_get_instance(ddi_get_parent(lun_dip))); if (ihp == NULL) { name[0] = '\0'; return (0); } /* Get the target num */ target = ddi_prop_get_int(DDI_DEV_T_ANY, sd->sd_dev, DDI_PROP_DONTPASS, TARGET_PROP, 0); /* Get the target num */ lun = ddi_prop_get_int(DDI_DEV_T_ANY, sd->sd_dev, DDI_PROP_DONTPASS, LUN_PROP, 0); /* * Now we need to find our ilp by walking the lists * off the ihp and isp. */ /* See if we already created this session */ /* Walk the HBA's session list */ for (isp = ihp->hba_sess_list; isp; isp = isp->sess_next) { /* compare target name as the unique identifier */ if (target == isp->sess_oid) { /* found match */ break; } } /* If we found matching session continue searching for tgt */ if (isp == NULL) { /* sess not found */ name[0] = '\0'; return (0); } /* * Search for the matching iscsi lun structure. We don't * need to hold the READER for the lun list at this point. * because the tran_get_name is being called from the online * function which is already holding a reader on the lun * list. */ for (ilp = isp->sess_lun_list; ilp; ilp = ilp->lun_next) { if (lun == ilp->lun_num) { /* found match */ break; } } if (ilp == NULL) { /* tgt not found */ name[0] = '\0'; return (0); } /* Ensure enough space for lun_addr is available */ ASSERT(ilp->lun_addr != NULL); if ((strlen(ilp->lun_addr) + 1) > len) { return (0); } /* copy lun_addr name */ (void) strcpy(name, ilp->lun_addr); /* * Based on IEEE-1275 we can't have any ':', ' ', '@', or '/' * characters in our naming. So replace all those characters * with '-' */ iscsi_get_name_from_iqn(name, len); return (1); } /* * iscsi_tran_get_bus_addr - This returns a human readable string * for the bus address. Examining most other drivers fcp, etc. They * all just return the same string as tran_get_name. In our case * our tran get name is already some what usable so leave alone. */ static int iscsi_tran_get_bus_addr(struct scsi_device *sd, char *name, int len) { return (iscsi_tran_get_name(sd, name, len)); } /* * +--------------------------------------------------------------------+ * | End of scsi_tran routines | * +--------------------------------------------------------------------+ */ /* * +--------------------------------------------------------------------+ * | Start of cb_ops routines | * +--------------------------------------------------------------------+ */ /* * iscsi_open - Driver should be made IOCTL MT safe. Otherwise * this function needs updated. */ /* ARGSUSED */ static int iscsi_open(dev_t *devp, int flags, int otyp, cred_t *credp) { return (0); } /* * iscsi_close - */ /* ARGSUSED */ static int iscsi_close(dev_t dev, int flags, int otyp, cred_t *credp) { return (0); } /* * iscsi_ioctl - */ /* ARGSUSED */ static int iscsi_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *credp, int *rvalp) { int rtn = 0; int instance = 0; int list_space = 0; int lun_sz = 0; int did; int retry; iscsi_hba_t *ihp = NULL; iscsi_sess_t *isp = NULL; iscsi_conn_t *icp = NULL; iscsi_login_params_t *params = NULL; iscsi_login_params_t *tmpParams = NULL; uchar_t *name = NULL; dev_info_t *lun_dip = NULL; entry_t e; iscsi_oid_t oid; iscsi_property_t *ipp; iscsi_static_property_t *ispp; iscsi_param_get_t *ilg; iscsi_param_set_t *ils; iscsi_target_list_t idl, *idlp = NULL; iscsi_addr_list_t ial, *ialp = NULL; iscsi_chap_props_t *chap = NULL; iscsi_radius_props_t *radius = NULL; iscsi_auth_props_t *auth = NULL; iscsi_lun_list_t *ll, *llp = NULL; iscsi_lun_props_t *lun = NULL; iscsi_lun_t *ilp = NULL; iSCSIDiscoveryMethod_t method; iSCSIDiscoveryProperties_t discovery_props; iscsi_uscsi_t iu; iscsi_uscsi_t iu_caller; #ifdef _MULTI_DATAMODEL /* For use when a 32 bit app makes a call into a 64 bit ioctl */ iscsi_uscsi32_t iu32_caller; model_t model; #endif /* _MULTI_DATAMODEL */ void *void_p; iscsi_sendtgts_list_t *stl_hdr; iscsi_sendtgts_list_t *istl; int stl_sz; iscsi_target_entry_t *target; uint32_t old_oid; uint32_t target_oid; iscsi_targetparam_entry_t *curr_entry; char *initiator_node_name; char *initiator_node_alias; isns_portal_group_list_t *pg_list = NULL; isns_server_portal_group_list_t *server_pg_list_hdr = NULL; isns_server_portal_group_list_t *server_pg_list = NULL; int pg_list_sz, pg_sz_copy_out, server_pg_list_sz; iscsi_config_sess_t *ics; int size; boolean_t rval; char init_port_name[MAX_NAME_PROP_SIZE]; iscsi_sockaddr_t addr_dsc; iscsi_boot_property_t *bootProp; boolean_t discovered = B_TRUE; iscsi_tunable_object_t *tpsg; iscsi_tunable_object_t *tpss; iscsi_reen_t *reenum; instance = getminor(dev); ihp = (iscsi_hba_t *)ddi_get_soft_state(iscsi_state, instance); if (ihp == NULL) return (EFAULT); iscsi_check_miniroot(ihp); if ((cmd != ISCSI_SMF_ONLINE) && (cmd != ISCSI_SMF_OFFLINE) && (cmd != ISCSI_SMF_GET)) { /* other cmd needs to acquire the service */ if (iscsi_client_request_service(ihp) == B_FALSE) { return (EFAULT); } } switch (cmd) { /* * ISCSI_CREATE_OID - Create a Object IDentifier for a TargetName */ case ISCSI_CREATE_OID: if (ddi_copyin((caddr_t)arg, &oid, sizeof (oid), mode)) { rtn = EFAULT; break; } if (oid.o_vers != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; break; } /* Set the target that this session is associated with */ oid.o_oid = iscsi_targetparam_get_oid(oid.o_name); if (ddi_copyout(&oid, (caddr_t)arg, sizeof (oid), mode)) { rtn = EFAULT; break; } break; /* * ISCSI_PARAM_GET - Get param for specified * connection/session. */ case ISCSI_PARAM_GET: /* copyin user args */ ilg = (iscsi_param_get_t *)kmem_alloc(sizeof (*ilg), KM_SLEEP); if (ddi_copyin((caddr_t)arg, ilg, sizeof (*ilg), mode)) { rtn = EFAULT; kmem_free(ilg, sizeof (*ilg)); break; } if (ilg->g_vers != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; kmem_free(ilg, sizeof (*ilg)); break; } /* handle special case for Initiator name */ if (ilg->g_param == ISCSI_LOGIN_PARAM_INITIATOR_NAME) { (void) strlcpy((char *)ilg->g_value.v_name, (char *)ihp->hba_name, ISCSI_MAX_NAME_LEN); } else if (ilg->g_param == ISCSI_LOGIN_PARAM_INITIATOR_ALIAS) { if (ihp->hba_alias_length == 0) { rtn = EINVAL; } else { (void) strlcpy((char *)ilg->g_value.v_name, (char *)ihp->hba_alias, ISCSI_MAX_NAME_LEN); } } else { /* To describe the validity of the requested param */ boolean_t valid_flag = B_TRUE; name = NULL; /* * switch login based if looking for initiator * params */ rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); if (ilg->g_oid == ihp->hba_oid) { /* initiator */ params = &ihp->hba_params; name = ihp->hba_name; if (iscsi_get_persisted_param(name, ilg, params) != 0) { valid_flag = B_FALSE; } } else { /* * If the oid does represent a session check * to see if it is a target oid. If so, * return the target's associated session. */ rtn = iscsi_sess_get(ilg->g_oid, ihp, &isp); if (rtn != 0) { rtn = iscsi_sess_get_by_target( ilg->g_oid, ihp, &isp); } /* * If rtn is zero then we have found an * existing session. Use the session name to * do param lookup. If rtn is non-zero then * create a targetparam object and use its name * for param lookup. */ if (rtn == 0) { name = isp->sess_name; params = &isp->sess_params; } else { name = iscsi_targetparam_get_name( ilg->g_oid); if (ilg->g_param_type == ISCSI_SESS_PARAM) { tmpParams = (iscsi_login_params_t *) kmem_alloc( sizeof (*tmpParams), KM_SLEEP); params = tmpParams; } rtn = 0; } if (name == NULL) { rw_exit( &ihp->hba_sess_list_rwlock); rtn = EFAULT; kmem_free(ilg, sizeof (*ilg)); if (tmpParams != NULL) kmem_free(tmpParams, sizeof (*tmpParams)); break; } if (ilg->g_param_type == ISCSI_SESS_PARAM) { /* session */ /* * Update sess_params with the * latest params from the * persistent store. */ if (iscsi_get_persisted_param(name, ilg, params) != 0) { /* * If the parameter in * question is not * overriden, no effect * on existing session * parameters. However, * the parameter is * marked invalid * (from the standpoint * of whether it is * overriden). */ valid_flag = B_FALSE; } } else if (ilg->g_param_type == ISCSI_CONN_PARAM && isp != NULL) { /* connection */ rw_enter(&isp->sess_conn_list_rwlock, RW_READER); /* Assuming 1 conn per sess. */ /* * MC/S - Need to be modified to * take g_conn_cid into account when * we go multi-connection. */ if ((isp->sess_conn_act != NULL) && (isp->sess_conn_act->conn_state == ISCSI_CONN_STATE_LOGGED_IN)) { params = &(isp-> sess_conn_act-> conn_params); } else { valid_flag = B_FALSE; } rw_exit(&isp->sess_conn_list_rwlock); } } /* make sure we have params to get info from */ if (params) { rtn = iscsi_get_param(params, valid_flag, ilg); /* * for target parameters, check if any * parameters were overridden at the initiator * level. If so, then change the default value * to the initiator's overridden value */ if ((rtn == 0) && (ilg->g_oid != ihp->hba_oid)) { iscsi_override_target_default(ihp, ilg); } } rw_exit(&ihp->hba_sess_list_rwlock); } if (rtn == 0) { rtn = ddi_copyout(ilg, (caddr_t)arg, sizeof (iscsi_param_get_t), mode); } kmem_free(ilg, sizeof (*ilg)); if (tmpParams != NULL) kmem_free(tmpParams, sizeof (*tmpParams)); break; /* * ISCSI_INIT_NODE_NAME_SET - Change the initiator-node name for * the specified connection/session. */ case ISCSI_INIT_NODE_NAME_SET: /* copyin user args */ ils = (iscsi_param_set_t *)kmem_alloc(sizeof (*ils), KM_SLEEP); if (ddi_copyin((caddr_t)arg, ils, sizeof (*ils), mode)) { rtn = EFAULT; kmem_free(ils, sizeof (*ils)); break; } if (ils->s_vers != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; kmem_free(ils, sizeof (*ils)); break; } /* saving off the old initiator-node name */ initiator_node_name = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); rval = persistent_initiator_name_get(initiator_node_name, ISCSI_MAX_NAME_LEN); rtn = iscsi_set_params(ils, ihp, B_TRUE); kmem_free(ils, sizeof (*ils)); if (rtn != 0) { kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); initiator_node_name = NULL; break; } (void) snprintf(init_port_name, MAX_NAME_PROP_SIZE, "%s,%02x%02x%02x%02x%02x%02x", (char *)ihp->hba_name, ihp->hba_isid[0], ihp->hba_isid[1], ihp->hba_isid[2], ihp->hba_isid[3], ihp->hba_isid[4], ihp->hba_isid[5]); if (ddi_prop_update_string(DDI_DEV_T_NONE, ihp->hba_dip, SCSI_ADDR_PROP_INITIATOR_PORT, init_port_name) != DDI_PROP_SUCCESS) { cmn_err(CE_WARN, "iscsi_ioctl: Updating " SCSI_ADDR_PROP_INITIATOR_PORT " property on iSCSI " "HBA(%s) with dip(%d) Failed", (char *)ihp->hba_name, ddi_get_instance(ihp->hba_dip)); } /* * Deregister the old initiator-node name from the iSNS * server * Register the new initiator-node name with the iSNS server */ method = persistent_disc_meth_get(); if (method & iSCSIDiscoveryMethodISNS) { if (rval == B_TRUE) { if (strlen(initiator_node_name) > 0) { /* * we will attempt to offline the targets. * if logouts fail, we will still continue */ #define STRING_INNO "initiator-node name - Offline " #define STRING_FFOMD "failed for one or more devices" if ((iscsid_del( ihp, NULL, method, NULL)) != B_TRUE) { cmn_err(CE_NOTE, "Attempting to change " STRING_INNO STRING_FFOMD); } (void) isns_dereg(ihp->hba_isid, (uint8_t *)initiator_node_name); #undef STRING_INNO #undef STRING_FFOMD } } if (persistent_initiator_name_get(initiator_node_name, ISCSI_MAX_NAME_LEN) != B_TRUE) { kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); initiator_node_name = NULL; rtn = EIO; break; } if (strlen(initiator_node_name) == 0) { kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); initiator_node_name = NULL; rtn = EIO; break; } initiator_node_alias = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); if (persistent_alias_name_get(initiator_node_alias, ISCSI_MAX_NAME_LEN) != B_TRUE) { initiator_node_alias[0] = '\0'; } (void) isns_reg(ihp->hba_isid, (uint8_t *)initiator_node_name, ISCSI_MAX_NAME_LEN, (uint8_t *)initiator_node_alias, ISCSI_MAX_NAME_LEN, ISNS_INITIATOR_NODE_TYPE, isns_scn_callback); iscsid_do_isns_query(ihp); kmem_free(initiator_node_alias, ISCSI_MAX_NAME_LEN); initiator_node_alias = NULL; } kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); initiator_node_name = NULL; break; /* * ISCSI_PARAM_SET - Set param for specified connection/session. */ case ISCSI_PARAM_SET: /* copyin user args */ ils = (iscsi_param_set_t *)kmem_alloc(sizeof (*ils), KM_SLEEP); if (ddi_copyin((caddr_t)arg, ils, sizeof (*ils), mode)) { rtn = EFAULT; kmem_free(ils, sizeof (*ils)); break; } if (ils->s_vers != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; kmem_free(ils, sizeof (*ils)); break; } rtn = iscsi_set_params(ils, ihp, B_TRUE); if (iscsiboot_prop) { if (iscsi_cmp_boot_sess_oid(ihp, ils->s_oid)) { /* * found active session for this object * or this is initiator's object * with mpxio enabled */ if (!iscsi_reconfig_boot_sess(ihp)) { rtn = EINVAL; kmem_free(ils, sizeof (*ils)); break; } } } kmem_free(ils, sizeof (*ils)); break; /* * ISCSI_TARGET_PARAM_CLEAR * - remove custom parameter settings for a target. */ case ISCSI_TARGET_PARAM_CLEAR: if (ddi_copyin((caddr_t)arg, &e, sizeof (e), mode)) { rtn = EFAULT; break; } else if (e.e_vers != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; break; } if ((e.e_oid != ihp->hba_oid) && (e.e_oid != ISCSI_OID_NOTSET)) { boolean_t rval1, rval2, rval3; uchar_t *t_name; iscsi_sess_t *t_isp; boolean_t t_rtn = B_TRUE; persistent_param_t t_param; iscsi_config_sess_t t_ics; persistent_tunable_param_t t_tpsg; rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); /* * If the oid does represent a session check to see * if it is a target oid. If so, return the target's * associated session. */ rtn = iscsi_sess_get(e.e_oid, ihp, &isp); if (rtn != 0) { rtn = iscsi_sess_get_by_target(e.e_oid, ihp, &isp); } /* * If rtn is zero then we have found an * existing session. Use the session name to * do param lookup. If rtn is non-zero then * create a targetparam object and use its name * for param lookup. */ if (rtn == 0) { t_name = isp->sess_name; } else { t_name = iscsi_targetparam_get_name(e.e_oid); rtn = 0; } if (t_name == NULL) { rw_exit(&ihp->hba_sess_list_rwlock); rtn = EFAULT; break; } name = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); (void) strncpy((char *)name, (char *)t_name, ISCSI_MAX_NAME_LEN); t_ics.ics_in = 1; rval1 = persistent_param_get((char *)name, &t_param); rval2 = persistent_get_config_session((char *)name, &t_ics); rval3 = persistent_get_tunable_param((char *)name, &t_tpsg); if ((rval1 == B_FALSE) && (rval2 == B_FALSE) && (rval3 == B_FALSE)) { /* no any target parameters get */ kmem_free(name, ISCSI_MAX_NAME_LEN); rw_exit(&ihp->hba_sess_list_rwlock); rtn = EIO; break; } if (persistent_param_clear((char *)name) == B_FALSE) { kmem_free(name, ISCSI_MAX_NAME_LEN); rw_exit(&ihp->hba_sess_list_rwlock); rtn = EIO; break; } ics = kmem_zalloc(sizeof (*ics), KM_SLEEP); ics->ics_ver = ISCSI_INTERFACE_VERSION; ics->ics_oid = ISCSI_INITIATOR_OID; ics->ics_in = 1; /* * We may have multiple sessions with different * tpgt values. So we need to loop through * the sessions and update all sessions. */ for (isp = ihp->hba_sess_list; isp; isp = t_isp) { t_isp = isp->sess_next; if (strncmp((char *)isp->sess_name, (char *)name, ISCSI_MAX_NAME_LEN) == 0) { /* * When removing target-params we need * slightly different actions depending * on if the session should still exist. * Get the initiator-node value for * MS/T. If there is no initiator * value then assume the default value * of 1. If the initiator value is * less than this ISID then we need to * destroy the session. Otherwise * update the session information and * resync (N7 event). */ rtn = iscsi_ioctl_get_config_sess( ihp, ics); if (((rtn != 0) && (isp->sess_isid[5] > 0)) || ((rtn == 0) && (ics->ics_out <= isp->sess_isid[5]))) { /* * This session should no * longer exist. Remove * session. */ if (!ISCSI_SUCCESS( iscsi_sess_destroy(isp))) { t_rtn = B_FALSE; continue; } isp = ihp->hba_sess_list; } else { uint32_t event_count; /* * Reset the session * parameters. */ bcopy(&(isp->sess_hba-> hba_params), &(isp->sess_params), sizeof (isp->sess_params)); if (iscsiboot_prop && isp->sess_boot) { /* * reconfig boot * session later */ continue; } /* * Notify the session that the * login parameters have * changed. */ event_count = atomic_inc_32_nv( &isp-> sess_state_event_count); iscsi_sess_enter_state_zone( isp); iscsi_sess_state_machine(isp, ISCSI_SESS_EVENT_N7, event_count); iscsi_sess_exit_state_zone( isp); } } } if (t_rtn == B_FALSE) { boolean_t t_rval = B_TRUE; /* Failure!, restore target's parameters */ if (rval1 == B_TRUE) { rval1 = persistent_param_set( (char *)name, &t_param); if (rval1 == B_FALSE) { t_rval = B_FALSE; } } if (rval2 == B_TRUE) { rval2 = persistent_set_config_session( (char *)name, &t_ics); if (rval2 == B_FALSE) { t_rval = B_FALSE; } } if (rval3 == B_TRUE) { rval3 = persistent_set_tunable_param( (char *)name, &t_tpsg); if (rval3 == B_FALSE) { t_rval = B_FALSE; } } if (t_rval == B_FALSE) { cmn_err(CE_WARN, "Failed to restore " "target's parameters after remove " "session related to target " "parameters failure."); } rtn = EBUSY; } kmem_free(ics, sizeof (*ics)); kmem_free(name, ISCSI_MAX_NAME_LEN); rw_exit(&ihp->hba_sess_list_rwlock); if (iscsiboot_prop) { if (iscsi_cmp_boot_sess_oid(ihp, e.e_oid)) { /* * found active session for this object * or this is initiator object * with mpxio enabled */ if (!iscsi_reconfig_boot_sess(ihp)) { rtn = EINVAL; break; } } } } break; /* * ISCSI_TARGET_OID_LIST_GET - */ case ISCSI_TARGET_OID_LIST_GET: /* copyin user args */ if (ddi_copyin((caddr_t)arg, &idl, sizeof (idl), mode)) { rtn = EFAULT; break; } if (idl.tl_vers != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; break; } list_space = sizeof (iscsi_target_list_t); if (idl.tl_in_cnt != 0) list_space += (sizeof (uint32_t) * (idl.tl_in_cnt - 1)); idlp = kmem_zalloc(list_space, KM_SLEEP); bcopy(&idl, idlp, sizeof (idl)); idlp->tl_out_cnt = 0; /* * If target list type is ISCSI_TGT_OID_LIST and discovery * has not been completed or in progress, poke the discovery * methods so target information is returned */ mutex_enter(&ihp->hba_discovery_events_mutex); method = ihp->hba_discovery_events; if ((idl.tl_tgt_list_type == ISCSI_TGT_OID_LIST) && (method != ISCSI_ALL_DISCOVERY_METHODS) && (ihp->hba_discovery_in_progress == B_FALSE)) { ihp->hba_discovery_in_progress = B_TRUE; mutex_exit(&ihp->hba_discovery_events_mutex); iscsid_poke_discovery(ihp, iSCSIDiscoveryMethodUnknown); mutex_enter(&ihp->hba_discovery_events_mutex); ihp->hba_discovery_in_progress = B_FALSE; } mutex_exit(&ihp->hba_discovery_events_mutex); /* * Return the correct list information based on the type */ switch (idl.tl_tgt_list_type) { /* ISCSI_TGT_PARAM_OID_LIST - iscsiadm list target-params */ case ISCSI_TGT_PARAM_OID_LIST: /* get params from persistent store */ iscsi_targetparam_lock_list(RW_READER); curr_entry = iscsi_targetparam_get_next_entry(NULL); while (curr_entry != NULL) { if (idlp->tl_out_cnt < idlp->tl_in_cnt) { idlp->tl_oid_list[idlp->tl_out_cnt] = curr_entry->target_oid; } idlp->tl_out_cnt++; curr_entry = iscsi_targetparam_get_next_entry( curr_entry); } iscsi_targetparam_unlock_list(); break; /* ISCSI_STATIC_TGT_OID_LIST - iscsiadm list static-config */ case ISCSI_STATIC_TGT_OID_LIST: { char *target_name = NULL; void *v = NULL; /* get static-config from persistent store */ target_name = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); persistent_static_addr_lock(); while (persistent_static_addr_next(&v, (char *)target_name, &e) == B_TRUE) { if (idlp->tl_out_cnt < idlp->tl_in_cnt) { idlp->tl_oid_list[idlp->tl_out_cnt] = e.e_oid; } idlp->tl_out_cnt++; } persistent_static_addr_unlock(); kmem_free(target_name, ISCSI_MAX_NAME_LEN); break; } /* ISCSI_TGT_OID_LIST - iscsiadm list target */ case ISCSI_TGT_OID_LIST: /* get sessions from hba's session list */ rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); for (isp = ihp->hba_sess_list; isp; isp = isp->sess_next) { if (((isp->sess_state != ISCSI_SESS_STATE_FREE) || (isp->sess_discovered_by != iSCSIDiscoveryMethodUnknown)) && (isp->sess_type == ISCSI_SESS_TYPE_NORMAL)) { if (idlp->tl_out_cnt < idlp->tl_in_cnt) { idlp->tl_oid_list[ idlp->tl_out_cnt] = isp->sess_oid; } idlp->tl_out_cnt++; } } rw_exit(&ihp->hba_sess_list_rwlock); break; default: ASSERT(FALSE); } rtn = ddi_copyout(idlp, (caddr_t)arg, list_space, mode); kmem_free(idlp, list_space); break; /* * ISCSI_TARGET_PROPS_GET - */ case ISCSI_TARGET_PROPS_GET: /* ---- fall through sense the code is almost the same ---- */ /* * ISCSI_TARGET_PROPS_SET - */ case ISCSI_TARGET_PROPS_SET: /* copyin user args */ ipp = (iscsi_property_t *)kmem_alloc(sizeof (*ipp), KM_SLEEP); if (ddi_copyin((caddr_t)arg, ipp, sizeof (*ipp), mode)) { rtn = EFAULT; kmem_free(ipp, sizeof (*ipp)); break; } if (ipp->p_vers != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; kmem_free(ipp, sizeof (*ipp)); break; } rtn = iscsi_target_prop_mod(ihp, ipp, cmd); if (rtn == 0) rtn = ddi_copyout(ipp, (caddr_t)arg, sizeof (*ipp), mode); kmem_free(ipp, sizeof (*ipp)); break; /* * ISCSI_TARGET_ADDRESS_GET - */ case ISCSI_TARGET_ADDRESS_GET: if (ddi_copyin((caddr_t)arg, &ial, sizeof (ial), mode)) { rtn = EFAULT; break; } if (ial.al_vers != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; break; } /* * Find out how much space we need to malloc for the users * request. */ list_space = sizeof (iscsi_addr_list_t); if (ial.al_in_cnt != 0) { list_space += (sizeof (iscsi_addr_t) * (ial.al_in_cnt - 1)); } ialp = (iscsi_addr_list_t *)kmem_zalloc(list_space, KM_SLEEP); /* Copy in the header portion */ bcopy(&ial, ialp, sizeof (ial)); /* session */ rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); rtn = iscsi_sess_get(ialp->al_oid, ihp, &isp); if (rtn != 0) { rw_exit(&ihp->hba_sess_list_rwlock); rtn = EFAULT; break; } ialp->al_out_cnt = 0; ialp->al_tpgt = isp->sess_tpgt_conf; rw_enter(&isp->sess_conn_list_rwlock, RW_READER); for (icp = isp->sess_conn_list; icp; icp = icp->conn_next) { if (icp->conn_state != ISCSI_CONN_STATE_LOGGED_IN) { continue; } if (ialp->al_out_cnt < ialp->al_in_cnt) { iscsi_addr_t *ap; ap = &ialp->al_addrs[ialp->al_out_cnt]; if (icp->conn_base_addr.sin.sa_family == AF_INET) { struct sockaddr_in *addr_in = (struct sockaddr_in *)&icp-> conn_base_addr.sin4; ap->a_addr.i_insize = sizeof (struct in_addr); bcopy(&addr_in->sin_addr.s_addr, &ap->a_addr.i_addr.in4.s_addr, sizeof (struct in_addr)); ap->a_port = addr_in->sin_port; } else { struct sockaddr_in6 *addr_in6 = (struct sockaddr_in6 *)&icp-> conn_base_addr.sin6; ap->a_addr.i_insize = sizeof (struct in6_addr); bcopy(&addr_in6->sin6_addr.s6_addr, &ap->a_addr.i_addr.in6.s6_addr, sizeof (struct in6_addr)); ap->a_port = addr_in6->sin6_port; } } ialp->al_out_cnt++; } rw_exit(&isp->sess_conn_list_rwlock); rw_exit(&ihp->hba_sess_list_rwlock); rtn = ddi_copyout(ialp, (caddr_t)arg, list_space, mode); kmem_free(ialp, list_space); break; /* * ISCSI_CHAP_SET - */ case ISCSI_CHAP_SET: chap = (iscsi_chap_props_t *)kmem_zalloc(sizeof (*chap), KM_SLEEP); if (ddi_copyin((caddr_t)arg, chap, sizeof (*chap), mode)) { rtn = EFAULT; kmem_free(chap, sizeof (*chap)); break; } else if (chap->c_vers != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; kmem_free(chap, sizeof (*chap)); break; } rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); if (chap->c_oid == ihp->hba_oid) name = ihp->hba_name; else { rtn = iscsi_sess_get(chap->c_oid, ihp, &isp); if (rtn != 0) { rtn = iscsi_sess_get_by_target( chap->c_oid, ihp, &isp); } /* * If rtn is zero then we have found an * existing session. Use the session name to * do param lookup. If rtn is non-zero then * create a targetparam object and use its name * for param lookup. */ if (rtn == 0) { name = isp->sess_name; } else { name = iscsi_targetparam_get_name(chap->c_oid); rtn = 0; } } if (name == NULL) { rw_exit( &ihp->hba_sess_list_rwlock); rtn = EFAULT; kmem_free(chap, sizeof (*chap)); break; } if (persistent_chap_set((char *)name, chap) == B_FALSE) { rtn = EIO; } rw_exit(&ihp->hba_sess_list_rwlock); kmem_free(chap, sizeof (*chap)); break; /* * ISCSI_CHAP_GET - */ case ISCSI_CHAP_GET: chap = (iscsi_chap_props_t *)kmem_zalloc(sizeof (*chap), KM_SLEEP); if (ddi_copyin((caddr_t)arg, chap, sizeof (*chap), mode)) { kmem_free(chap, sizeof (*chap)); rtn = EFAULT; break; } else if (chap->c_vers != ISCSI_INTERFACE_VERSION) { kmem_free(chap, sizeof (*chap)); rtn = EINVAL; break; } rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); if (chap->c_oid == ihp->hba_oid) name = ihp->hba_name; else { rtn = iscsi_sess_get(chap->c_oid, ihp, &isp); if (rtn != 0) { rtn = iscsi_sess_get_by_target( chap->c_oid, ihp, &isp); } /* * If rtn is zero then we have found an * existing session. Use the session name to * do param lookup. If rtn is non-zero then * create a targetparam object and use its name * for param lookup. */ if (rtn == 0) { name = isp->sess_name; } else { rtn = 0; name = iscsi_targetparam_get_name(chap->c_oid); } if (name == NULL) { rw_exit(&ihp->hba_sess_list_rwlock); rtn = EFAULT; break; } /* * Initialize the target-side chap name to the * session name if no chap settings have been * saved for the current session. */ if (persistent_chap_get((char *)name, chap) == B_FALSE) { int name_len = strlen((char *)name); iscsi_chap_props_t *chap = NULL; chap = (iscsi_chap_props_t *)kmem_zalloc (sizeof (iscsi_chap_props_t), KM_SLEEP); bcopy((char *)name, chap->c_user, name_len); chap->c_user_len = name_len; (void) (persistent_chap_set((char *)name, chap)); kmem_free(chap, sizeof (*chap)); } } if (name == NULL) { rw_exit( &ihp->hba_sess_list_rwlock); rtn = EFAULT; break; } if (persistent_chap_get((char *)name, chap) == B_FALSE) { rw_exit(&ihp->hba_sess_list_rwlock); rtn = EIO; break; } rw_exit(&ihp->hba_sess_list_rwlock); rtn = ddi_copyout(chap, (caddr_t)arg, sizeof (*chap), mode); kmem_free(chap, sizeof (*chap)); break; /* * ISCSI_CHAP_CLEAR - */ case ISCSI_CHAP_CLEAR: chap = (iscsi_chap_props_t *)kmem_zalloc(sizeof (*chap), KM_SLEEP); if (ddi_copyin((caddr_t)arg, chap, sizeof (*chap), mode)) { rtn = EFAULT; kmem_free(chap, sizeof (*chap)); break; } else if (chap->c_vers != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; kmem_free(chap, sizeof (*chap)); break; } if (chap->c_oid == ihp->hba_oid) { iscsi_sess_t *sessp; name = ihp->hba_name; if (persistent_chap_clear( (char *)name) == B_FALSE) { rtn = EIO; } /* * Loop through all sessions and memset their * (initiator's) passwords */ rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); for (sessp = ihp->hba_sess_list; sessp; sessp = sessp->sess_next) { (void) memset(sessp->sess_auth.password, 0, iscsiAuthStringMaxLength); sessp->sess_auth.password_length = 0; } rw_exit(&ihp->hba_sess_list_rwlock); } else { rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); /* * If the oid does represent a session check to see * if it is a target oid. If so, return the target's * associated session. */ rtn = iscsi_sess_get(chap->c_oid, ihp, &isp); if (rtn != 0) { rtn = iscsi_sess_get_by_target(chap->c_oid, ihp, &isp); } rw_exit(&ihp->hba_sess_list_rwlock); /* * If rtn is zero then we have found an * existing session. Use the session name to * do param lookup. If rtn is non-zero then * create a targetparam object and use its name * for param lookup. */ if (rtn == 0) { name = isp->sess_name; } else { name = iscsi_targetparam_get_name(chap->c_oid); rtn = 0; } if (name == NULL) { rtn = EFAULT; break; } if (persistent_chap_clear( (char *)name) == B_FALSE) { rtn = EIO; } /* * Clear out session chap password if we found a * session above. */ if (isp != NULL) { (void) memset(isp->sess_auth.password_in, 0, iscsiAuthStringMaxLength); isp->sess_auth.password_length_in = 0; } } kmem_free(chap, sizeof (*chap)); break; /* * ISCSI_STATIC_GET - */ case ISCSI_STATIC_GET: ispp = (iscsi_static_property_t *)kmem_alloc( sizeof (*ispp), KM_SLEEP); if (ddi_copyin((caddr_t)arg, ispp, sizeof (*ispp), mode)) { rtn = EFAULT; kmem_free(ispp, sizeof (*ispp)); break; } if (ispp->p_vers != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; kmem_free(ispp, sizeof (*ispp)); break; } { void *v = NULL; boolean_t found = B_FALSE; persistent_static_addr_lock(); while (persistent_static_addr_next(&v, (char *)ispp->p_name, &e) == B_TRUE) { if (ispp->p_oid == e.e_oid) { /* * In case there are multiple * addresses associated with the * given target OID, pick the first * one. */ iscsi_addr_t *ap; ap = &(ispp->p_addr_list.al_addrs[0]); ap->a_port = e.e_port; ap->a_addr.i_insize = e.e_insize; bcopy(e.e_u.u_in6.s6_addr, ap->a_addr.i_addr.in6.s6_addr, e.e_insize); ispp->p_name_len = strlen((char *)ispp->p_name); ispp->p_addr_list.al_tpgt = e.e_tpgt; ispp->p_addr_list.al_out_cnt = 1; found = B_TRUE; break; } } persistent_static_addr_unlock(); if (found == B_TRUE) { rtn = ddi_copyout(ispp, (caddr_t)arg, sizeof (*ispp), mode); } else { rtn = ENOENT; } } kmem_free(ispp, sizeof (*ispp)); break; /* * ISCSI_STATIC_SET - */ case ISCSI_STATIC_SET: target = iscsi_ioctl_copyin((caddr_t)arg, mode, sizeof (*target)); if (target == NULL) { rtn = EFAULT; break; } if ((target->te_entry.e_vers != ISCSI_INTERFACE_VERSION) || (target->te_entry.e_insize == 0)) { kmem_free(target, sizeof (*target)); rtn = EINVAL; break; } /* Check if the target's already been added */ { boolean_t static_target_found = B_FALSE; void *v = NULL; name = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); persistent_static_addr_lock(); while (persistent_static_addr_next(&v, (char *)name, &e) == B_TRUE) { /* * MC/S - Need to check IP address and port * number as well when we support MC/S. */ if ((strncmp((char *)name, (char *)target->te_name, ISCSI_MAX_NAME_LEN) == 0) && (target->te_entry.e_tpgt == e.e_tpgt) && (target->te_entry.e_insize == e.e_insize) && (bcmp(&target->te_entry.e_u, &e.e_u, e.e_insize) == 0)) { /* * We don't allow MC/S for now but * we do allow adding the same target * with different TPGTs (hence, * different sessions). */ static_target_found = B_TRUE; break; } } persistent_static_addr_unlock(); kmem_free(name, ISCSI_MAX_NAME_LEN); if (static_target_found == B_TRUE) { /* Duplicate entry */ kmem_free(target, sizeof (*target)); rtn = EEXIST; break; } } if (target->te_entry.e_oid == ISCSI_OID_NOTSET) { mutex_enter(&iscsi_oid_mutex); target->te_entry.e_oid = iscsi_oid++; mutex_exit(&iscsi_oid_mutex); } persistent_static_addr_lock(); if (persistent_static_addr_set((char *)target->te_name, &target->te_entry) == B_FALSE) { persistent_static_addr_unlock(); kmem_free(target, sizeof (*target)); rtn = EIO; break; } persistent_static_addr_unlock(); /* * If Static Targets discovery is enabled, then add * target to discovery queue. Otherwise, just create * the session for potential future use. */ method = persistent_disc_meth_get(); if (method & iSCSIDiscoveryMethodStatic) { iscsid_poke_discovery(ihp, iSCSIDiscoveryMethodStatic); (void) iscsid_login_tgt(ihp, (char *)target->te_name, iSCSIDiscoveryMethodStatic, NULL); } rtn = iscsi_ioctl_copyout(target, sizeof (*target), (caddr_t)arg, mode); break; /* * ISCSI_STATIC_CLEAR - */ case ISCSI_STATIC_CLEAR: if (ddi_copyin((caddr_t)arg, &e, sizeof (e), mode)) { rtn = EFAULT; break; } else if (e.e_vers != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; break; } { boolean_t found = B_FALSE; void *v = NULL; entry_t tmp_e; char *name = NULL; name = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); /* Find name for matching static_tgt oid */ persistent_static_addr_lock(); while (persistent_static_addr_next(&v, (char *)name, &tmp_e) == B_TRUE) { if (e.e_oid == tmp_e.e_oid) { found = B_TRUE; break; } } /* If static_tgt found logout and remove it */ if (found == B_TRUE) { iscsid_addr_to_sockaddr(tmp_e.e_insize, &tmp_e.e_u, tmp_e.e_port, &addr_dsc.sin); persistent_static_addr_unlock(); /* * If discovery in progress, try few times * before return busy */ retry = 0; mutex_enter(&ihp->hba_discovery_events_mutex); while (ihp->hba_discovery_in_progress == B_TRUE) { if (++retry == 5) { rtn = EBUSY; break; } mutex_exit( &ihp->hba_discovery_events_mutex); delay(SEC_TO_TICK( ISCSI_DISC_DELAY)); mutex_enter( &ihp->hba_discovery_events_mutex); } /* remove from persistent store */ if (rtn == 0 && persistent_static_addr_clear( e.e_oid) == B_FALSE) { rtn = EIO; } mutex_exit(&ihp->hba_discovery_events_mutex); if (rtn != 0) { kmem_free(name, ISCSI_MAX_NAME_LEN); break; } /* Attempt to logout of target */ if (iscsid_del(ihp, (char *)name, iSCSIDiscoveryMethodStatic, &addr_dsc.sin) == B_FALSE) { persistent_static_addr_lock(); /* * Restore static_tgt to * persistent store */ if (persistent_static_addr_set( (char *)name, &tmp_e) == B_FALSE) { cmn_err(CE_WARN, "Failed to " "restore static target " "address after logout " "target failure."); } persistent_static_addr_unlock(); rtn = EBUSY; } else { iscsid_poke_discovery(ihp, iSCSIDiscoveryMethodStatic); (void) iscsid_login_tgt(ihp, (char *)name, iSCSIDiscoveryMethodStatic, NULL); } } else { persistent_static_addr_unlock(); rtn = EIO; } kmem_free(name, ISCSI_MAX_NAME_LEN); } break; /* * ISCSI_ISNS_SERVER_ADDR_SET: */ case ISCSI_ISNS_SERVER_ADDR_SET: if (ddi_copyin((caddr_t)arg, &e, sizeof (e), mode)) { rtn = EFAULT; break; } else if (e.e_vers != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; break; } if (persistent_isns_addr_set(&e) == B_FALSE) { rtn = EIO; break; } /* * If iSNS server discovery is enabled, then kickoff * discovery of the targets advertised by the recently * added iSNS server address. */ method = persistent_disc_meth_get(); if (method & iSCSIDiscoveryMethodISNS) { initiator_node_name = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); if (persistent_initiator_name_get(initiator_node_name, ISCSI_MAX_NAME_LEN) != B_TRUE) { kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); initiator_node_name = NULL; rtn = EIO; break; } if (strlen(initiator_node_name) == 0) { kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); initiator_node_name = NULL; rtn = EIO; break; } initiator_node_alias = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); if (persistent_alias_name_get(initiator_node_alias, ISCSI_MAX_NAME_LEN) != B_TRUE) { initiator_node_alias[0] = '\0'; } /* * Register this initiator node against this iSNS * server. */ (void) isns_reg_one_server(&e, ihp->hba_isid, (uint8_t *)initiator_node_name, ISCSI_MAX_NAME_LEN, (uint8_t *)initiator_node_alias, ISCSI_MAX_NAME_LEN, ISNS_INITIATOR_NODE_TYPE, isns_scn_callback); iscsid_do_isns_query_one_server(ihp, &e); iscsid_addr_to_sockaddr(e.e_insize, &e.e_u, e.e_port, &addr_dsc.sin); (void) iscsid_login_tgt(ihp, NULL, iSCSIDiscoveryMethodISNS, &addr_dsc.sin); /* Done using the name and alias - free them. */ kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); initiator_node_name = NULL; kmem_free(initiator_node_alias, ISCSI_MAX_NAME_LEN); initiator_node_alias = NULL; } break; /* * ISCSI_DISCOVERY_ADDR_SET: */ case ISCSI_DISCOVERY_ADDR_SET: if (ddi_copyin((caddr_t)arg, &e, sizeof (e), mode)) { rtn = EFAULT; break; } else if (e.e_vers != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; break; } if (e.e_oid == ISCSI_OID_NOTSET) { mutex_enter(&iscsi_oid_mutex); e.e_oid = iscsi_oid++; mutex_exit(&iscsi_oid_mutex); } if (persistent_disc_addr_set(&e) == B_FALSE) { rtn = EIO; break; } /* * If Send Targets discovery is enabled, then kickoff * discovery of the targets advertised by the recently * added discovery address. */ method = persistent_disc_meth_get(); if (method & iSCSIDiscoveryMethodSendTargets) { iscsid_addr_to_sockaddr(e.e_insize, &e.e_u, e.e_port, &addr_dsc.sin); iscsid_do_sendtgts(&e); (void) iscsid_login_tgt(ihp, NULL, iSCSIDiscoveryMethodSendTargets, &addr_dsc.sin); } break; /* * ISCSI_DISCOVERY_ADDR_LIST_GET */ case ISCSI_DISCOVERY_ADDR_LIST_GET: /* copyin user args */ if (ddi_copyin((caddr_t)arg, &ial, sizeof (ial), mode)) { rtn = EFAULT; break; } if (ial.al_vers != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; break; } list_space = sizeof (iscsi_addr_list_t); if (ial.al_in_cnt != 0) { list_space += (sizeof (iscsi_addr_t) * (ial.al_in_cnt - 1)); } ialp = kmem_zalloc(list_space, KM_SLEEP); bcopy(&ial, ialp, sizeof (iscsi_addr_list_t)); void_p = NULL; ialp->al_out_cnt = 0; persistent_disc_addr_lock(); while (persistent_disc_addr_next(&void_p, &e) == B_TRUE) { if (ialp->al_out_cnt < ialp->al_in_cnt) { int i = ialp->al_out_cnt; iscsi_addr_t *addr = &ialp->al_addrs[i]; addr->a_port = e.e_port; addr->a_addr.i_insize = e.e_insize; addr->a_oid = e.e_oid; if (e.e_insize == sizeof (struct in_addr)) { /* IPv4 */ addr->a_addr.i_addr.in4.s_addr = e.e_u.u_in4.s_addr; } else if (e.e_insize == sizeof (struct in6_addr)) { /* IPv6 */ bcopy(e.e_u.u_in6.s6_addr, addr->a_addr.i_addr.in6.s6_addr, 16); } } ialp->al_out_cnt++; } persistent_disc_addr_unlock(); rtn = ddi_copyout(ialp, (caddr_t)arg, list_space, mode); kmem_free(ialp, list_space); break; /* * ISCSI_ISNS_SERVER_ADDR_LIST_GET */ case ISCSI_ISNS_SERVER_ADDR_LIST_GET: /* copyin user args */ if (ddi_copyin((caddr_t)arg, &ial, sizeof (ial), mode)) { rtn = EFAULT; break; } if (ial.al_vers != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; break; } list_space = sizeof (iscsi_addr_list_t); if (ial.al_in_cnt != 0) { list_space += (sizeof (iscsi_addr_t) * (ial.al_in_cnt - 1)); } ialp = kmem_zalloc(list_space, KM_SLEEP); bcopy(&ial, ialp, sizeof (iscsi_addr_list_t)); void_p = NULL; ialp->al_out_cnt = 0; persistent_isns_addr_lock(); while (persistent_isns_addr_next(&void_p, &e) == B_TRUE) { if (ialp->al_out_cnt < ialp->al_in_cnt) { int i = ialp->al_out_cnt; iscsi_addr_t *addr = &ialp->al_addrs[i]; addr->a_port = e.e_port; addr->a_addr.i_insize = e.e_insize; if (e.e_insize == sizeof (struct in_addr)) { /* IPv4 */ addr->a_addr.i_addr.in4.s_addr = e.e_u.u_in4.s_addr; } else if (e.e_insize == sizeof (struct in6_addr)) { /* IPv6 */ bcopy(e.e_u.u_in6.s6_addr, addr->a_addr.i_addr.in6.s6_addr, 16); } } ialp->al_out_cnt++; } persistent_isns_addr_unlock(); rtn = ddi_copyout(ialp, (caddr_t)arg, list_space, mode); kmem_free(ialp, list_space); break; /* * ISCSI_DISCOVERY_ADDR_CLEAR: */ case ISCSI_DISCOVERY_ADDR_CLEAR: if (ddi_copyin((caddr_t)arg, &e, sizeof (e), mode)) { rtn = EFAULT; break; } else if (e.e_vers != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; break; } iscsid_addr_to_sockaddr(e.e_insize, &e.e_u, e.e_port, &addr_dsc.sin); /* If discovery in progress, try few times before return busy */ retry = 0; mutex_enter(&ihp->hba_discovery_events_mutex); while (ihp->hba_discovery_in_progress == B_TRUE) { if (++retry == 5) { rtn = EBUSY; break; } mutex_exit(&ihp->hba_discovery_events_mutex); delay(SEC_TO_TICK(ISCSI_DISC_DELAY)); mutex_enter(&ihp->hba_discovery_events_mutex); } /* * Clear discovery address first, so that any bus config * will ignore this discovery address */ if (rtn == 0 && persistent_disc_addr_clear(&e) == B_FALSE) { rtn = EIO; } mutex_exit(&ihp->hba_discovery_events_mutex); if (rtn != 0) { break; } /* Attempt to logout of associated targets */ if (iscsid_del(ihp, NULL, iSCSIDiscoveryMethodSendTargets, &addr_dsc.sin) == B_FALSE) { /* Failure!, restore the discovery addr. */ if (persistent_disc_addr_set(&e) == B_FALSE) { cmn_err(CE_WARN, "Failed to restore sendtgt " "discovery address after logout associated " "targets failures."); } rtn = EBUSY; } break; /* * ISCSI_ISNS_SERVER_CLEAR: */ case ISCSI_ISNS_SERVER_ADDR_CLEAR: if (ddi_copyin((caddr_t)arg, &e, sizeof (e), mode)) { rtn = EFAULT; break; } else if (e.e_vers != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; break; } iscsid_addr_to_sockaddr(e.e_insize, &e.e_u, e.e_port, &addr_dsc.sin); /* If discovery in progress, try few times before return busy */ retry = 0; mutex_enter(&ihp->hba_discovery_events_mutex); while (ihp->hba_discovery_in_progress == B_TRUE) { if (++retry == 5) { rtn = EBUSY; break; } mutex_exit(&ihp->hba_discovery_events_mutex); delay(SEC_TO_TICK(ISCSI_DISC_DELAY)); mutex_enter(&ihp->hba_discovery_events_mutex); } /* * Clear isns server address first, so that any bus config * will ignore any target registerd on this isns server */ if (rtn == 0 && persistent_isns_addr_clear(&e) == B_FALSE) { rtn = EIO; } mutex_exit(&ihp->hba_discovery_events_mutex); if (rtn != 0) { break; } /* Attempt logout of associated targets */ if (iscsid_del(ihp, NULL, iSCSIDiscoveryMethodISNS, &addr_dsc.sin) == B_FALSE) { /* Failure!, restore the isns server addr. */ if (persistent_isns_addr_set(&e) == B_FALSE) { cmn_err(CE_WARN, "Failed to restore isns server" " address after logout associated targets" " failures."); } rtn = EBUSY; } else { method = persistent_disc_meth_get(); if (method & iSCSIDiscoveryMethodISNS) { boolean_t is_last_isns_server_b = B_FALSE; int isns_server_count = 0; void *void_p = NULL; /* * Check if the last iSNS server's been * removed. */ { entry_t tmp_e; persistent_isns_addr_lock(); while (persistent_isns_addr_next( &void_p, &tmp_e) == B_TRUE) { isns_server_count++; } } persistent_isns_addr_unlock(); if (isns_server_count == 0) { is_last_isns_server_b = B_TRUE; } /* * Deregister this node from this iSNS * server. */ initiator_node_name = kmem_zalloc( ISCSI_MAX_NAME_LEN, KM_SLEEP); if (persistent_initiator_name_get( initiator_node_name, ISCSI_MAX_NAME_LEN) == B_TRUE) { if (strlen(initiator_node_name) > 0) { (void) isns_dereg_one_server( &e, (uint8_t *) initiator_node_name, is_last_isns_server_b); } } kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); initiator_node_name = NULL; } } break; /* * ISCSI_DISCOVERY_SET - */ case ISCSI_DISCOVERY_SET: if (ddi_copyin((caddr_t)arg, &method, sizeof (method), mode)) { rtn = EFAULT; break; } if (persistent_disc_meth_set(method) == B_FALSE) { rtn = EIO; } else { (void) iscsid_enable_discovery(ihp, method, B_FALSE); iscsid_poke_discovery(ihp, method); (void) iscsid_login_tgt(ihp, NULL, method, NULL); } break; /* * ISCSI_DISCOVERY_GET - */ case ISCSI_DISCOVERY_GET: method = persistent_disc_meth_get(); rtn = ddi_copyout(&method, (caddr_t)arg, sizeof (method), mode); break; /* * ISCSI_DISCOVERY_CLEAR - */ case ISCSI_DISCOVERY_CLEAR: if (ddi_copyin((caddr_t)arg, &method, sizeof (method), mode)) { rtn = EFAULT; break; } /* If discovery in progress, try few times before return busy */ retry = 0; mutex_enter(&ihp->hba_discovery_events_mutex); while (ihp->hba_discovery_in_progress == B_TRUE) { if (++retry == 5) { rtn = EBUSY; break; } mutex_exit(&ihp->hba_discovery_events_mutex); delay(SEC_TO_TICK(ISCSI_DISC_DELAY)); mutex_enter(&ihp->hba_discovery_events_mutex); } /* * Clear discovery first, so that any bus config or * discovery requests will ignore this discovery method */ if (rtn == 0 && persistent_disc_meth_clear(method) == B_FALSE) { rtn = EIO; } mutex_exit(&ihp->hba_discovery_events_mutex); if (rtn != 0) { break; } /* Attempt to logout from all associated targets */ if (iscsid_disable_discovery(ihp, method) == B_FALSE) { /* Failure!, reset the discovery */ if (persistent_disc_meth_set(method) == B_FALSE) { cmn_err(CE_WARN, "Failed to reset discovery " "method after discovery disable failure."); } rtn = EBUSY; } break; /* * ISCSI_DISCOVERY_PROPS - */ case ISCSI_DISCOVERY_PROPS: iscsid_props(&discovery_props); if (ddi_copyout(&discovery_props, (caddr_t)arg, sizeof (discovery_props), mode)) rtn = EFAULT; break; /* * ISCSI_LUN_OID_LIST -- */ case ISCSI_LUN_OID_LIST_GET: ll = (iscsi_lun_list_t *)kmem_alloc(sizeof (*ll), KM_SLEEP); if (ddi_copyin((caddr_t)arg, ll, sizeof (*ll), mode)) { rtn = EFAULT; kmem_free(ll, sizeof (*ll)); break; } if (ll->ll_vers != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; kmem_free(ll, sizeof (*ll)); break; } /* * Find out how much space the user has allocated in their * structure. Match the same space for our structure. */ lun_sz = sizeof (iscsi_lun_list_t); if (ll->ll_in_cnt > 0) { lun_sz += (ll->ll_in_cnt - 1) * sizeof (iscsi_if_lun_t); } llp = kmem_zalloc(lun_sz, KM_SLEEP); bcopy(ll, llp, sizeof (*ll)); kmem_free(ll, sizeof (*ll)); /* * Check to see if oid references a target-param oid. If so, * find the associated session oid before getting lu list. */ if (iscsi_targetparam_get_name(llp->ll_tgt_oid) != NULL) { for (isp = ihp->hba_sess_list; isp; isp = isp->sess_next) { if (isp->sess_target_oid == llp->ll_tgt_oid) { target_oid = isp->sess_oid; break; } } } else { target_oid = llp->ll_tgt_oid; } /* * Look at the LUNs attached to the specified target. If there * is space in the user structure save that information locally. * Always add up the count to the total. By always adding * the count this code can be used if ll_in_cnt == 0 and * the user just wishes to know the appropriate size to * allocate. */ rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); for (isp = ihp->hba_sess_list; isp; isp = isp->sess_next) { if ((llp->ll_all_tgts == B_FALSE) && (isp->sess_oid != target_oid)) { continue; } rw_enter(&isp->sess_lun_list_rwlock, RW_READER); for (ilp = isp->sess_lun_list; ilp; ilp = ilp->lun_next) { if ((ilp->lun_state & ISCSI_LUN_STATE_ONLINE) && !(ilp->lun_state & ISCSI_LUN_STATE_INVALID)) { if (llp->ll_out_cnt < llp->ll_in_cnt) { iscsi_if_lun_t *lp; lp = &llp->ll_luns[ llp->ll_out_cnt]; lp->l_tgt_oid = isp->sess_oid; lp->l_oid = ilp->lun_oid; lp->l_num = ilp->lun_num; } llp->ll_out_cnt++; } } rw_exit(&isp->sess_lun_list_rwlock); } rw_exit(&ihp->hba_sess_list_rwlock); if (ddi_copyout(llp, (caddr_t)arg, lun_sz, mode)) { rtn = EFAULT; } kmem_free(llp, lun_sz); break; /* * ISCSI_LUN_PROPS_GET -- */ case ISCSI_LUN_PROPS_GET: lun = (iscsi_lun_props_t *)kmem_zalloc(sizeof (*lun), KM_SLEEP); if (ddi_copyin((caddr_t)arg, lun, sizeof (*lun), mode)) { rtn = EFAULT; kmem_free(lun, sizeof (*lun)); break; } if (lun->lp_vers != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; kmem_free(lun, sizeof (*lun)); break; } /* * For the target specified, find the LUN specified and * return its properties */ rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); rtn = iscsi_sess_get(lun->lp_tgt_oid, ihp, &isp); if (rtn != 0) { rw_exit(&ihp->hba_sess_list_rwlock); rtn = EFAULT; kmem_free(lun, sizeof (*lun)); break; } rtn = EINVAL; /* Set bad rtn, correct only if found */ rw_enter(&isp->sess_lun_list_rwlock, RW_READER); for (ilp = isp->sess_lun_list; ilp; ilp = ilp->lun_next) { if (ilp->lun_oid == lun->lp_oid) { lun->lp_num = ilp->lun_num; lun->lp_status = LunValid; lun->lp_time_online = ilp->lun_time_online; if (ilp->lun_pip != NULL) { lun_dip = mdi_pi_get_client( ilp->lun_pip); } else { lun_dip = ilp->lun_dip; } if (lun_dip != NULL && ((i_ddi_devi_attached(lun_dip)) || (ddi_get_devstate(lun_dip) == DDI_DEVSTATE_UP))) { (void) ddi_pathname(lun_dip, lun->lp_pathname); } else { /* * The LUN is not exported to the * OS yet. It is in the process * of being added. */ lun->lp_status = LunDoesNotExist; } bcopy(ilp->lun_vid, lun->lp_vid, sizeof (lun->lp_vid)); bcopy(ilp->lun_pid, lun->lp_pid, sizeof (lun->lp_pid)); rtn = ddi_copyout(lun, (caddr_t)arg, sizeof (*lun), mode); if (rtn == -1) { rtn = EFAULT; } break; } } rw_exit(&isp->sess_lun_list_rwlock); rw_exit(&ihp->hba_sess_list_rwlock); kmem_free(lun, sizeof (*lun)); break; /* * ISCSI_CONN_OID_LIST_GET -- */ #define ISCSIIOCOLGC iscsi_ioctl_conn_oid_list_get_copyout case ISCSI_CONN_OID_LIST_GET: { iscsi_conn_list_t *cl; /* Asuume the worst */ rtn = EFAULT; /* Copy the input argument into kernel world. */ cl = iscsi_ioctl_conn_oid_list_get_copyin( (caddr_t)arg, mode); if (cl != NULL) { if (iscsi_ioctl_conn_oid_list_get(ihp, cl) == B_TRUE) { rtn = ISCSIIOCOLGC( cl, (caddr_t)arg, mode); } } break; } #undef ISCSIIOCOLGC /* * ISCSI_CONN_OID_LIST_GET -- */ case ISCSI_CONN_PROPS_GET: { iscsi_conn_props_t *cp; /* Asuume the worst */ rtn = EFAULT; /* Copy the input argument into kernel world. */ cp = iscsi_ioctl_copyin( (caddr_t)arg, mode, sizeof (iscsi_conn_props_t)); if (cp != NULL) { /* Get the propereties. */ if (iscsi_ioctl_conn_props_get(ihp, cp) == B_TRUE) { rtn = iscsi_ioctl_copyout( cp, sizeof (*cp), (caddr_t)arg, mode); } else { kmem_free(cp, sizeof (*cp)); cp = NULL; } } break; } /* * ISCSI_RADIUS_GET - */ case ISCSI_RADIUS_GET: { iscsi_nvfile_status_t status; radius = (iscsi_radius_props_t *)kmem_zalloc(sizeof (*radius), KM_SLEEP); if (ddi_copyin((caddr_t)arg, radius, sizeof (*radius), mode)) { kmem_free(radius, sizeof (*radius)); rtn = EFAULT; break; } else if (radius->r_vers != ISCSI_INTERFACE_VERSION) { kmem_free(radius, sizeof (*radius)); rtn = EINVAL; break; } old_oid = radius->r_oid; if (radius->r_oid == ihp->hba_oid) { name = ihp->hba_name; } else { /* * RADIUS configuration should be done on a per * initiator basis. */ kmem_free(radius, sizeof (*radius)); rtn = EINVAL; break; } status = persistent_radius_get(radius); if (status == ISCSI_NVFILE_SUCCESS) { /* * Restore the value for overridden (and bogus) oid. */ radius->r_oid = old_oid; rtn = ddi_copyout(radius, (caddr_t)arg, sizeof (*radius), mode); } else if (status == ISCSI_NVFILE_NAMEVAL_NOT_FOUND) { rtn = ENOENT; } else { rtn = EIO; } kmem_free(radius, sizeof (*radius)); break; } /* * ISCSI_RADIUS_SET - */ case ISCSI_RADIUS_SET: radius = (iscsi_radius_props_t *)kmem_zalloc(sizeof (*radius), KM_SLEEP); if (ddi_copyin((caddr_t)arg, radius, sizeof (*radius), mode)) { rtn = EFAULT; kmem_free(radius, sizeof (*radius)); break; } else if (radius->r_vers != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; kmem_free(radius, sizeof (*radius)); break; } if (radius->r_oid == ihp->hba_oid) { name = ihp->hba_name; } else { /* * RADIUS configuration should be done on a per * initiator basis. */ kmem_free(radius, sizeof (*radius)); rtn = EINVAL; break; } if (persistent_radius_set(radius) == B_FALSE) { rtn = EIO; } kmem_free(radius, sizeof (*radius)); break; /* * ISCSI_AUTH_GET - */ case ISCSI_AUTH_GET: auth = (iscsi_auth_props_t *)kmem_zalloc(sizeof (*auth), KM_SLEEP); if (ddi_copyin((caddr_t)arg, auth, sizeof (*auth), mode)) { kmem_free(auth, sizeof (*auth)); rtn = EFAULT; break; } else if (auth->a_vers != ISCSI_INTERFACE_VERSION) { kmem_free(auth, sizeof (*auth)); rtn = EINVAL; break; } old_oid = auth->a_oid; if (auth->a_oid == ihp->hba_oid) { name = ihp->hba_name; } else { rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); /* * If the oid does represent a session check to see * if it is a target oid. If so, return the target's * associated session. */ rtn = iscsi_sess_get(auth->a_oid, ihp, &isp); if (rtn != 0) { rtn = iscsi_sess_get_by_target(auth->a_oid, ihp, &isp); } rw_exit(&ihp->hba_sess_list_rwlock); /* * If rtn is zero then we have found an * existing session. Use the session name to * do param lookup. If rtn is non-zero then * create a targetparam object and use its name * for param lookup. */ if (rtn == 0) { name = isp->sess_name; } else { name = iscsi_targetparam_get_name(auth->a_oid); } } if (name == NULL) { rtn = EFAULT; break; } if (persistent_auth_get((char *)name, auth) == B_TRUE) { /* * Restore the value for overridden (and bogus) oid. */ auth->a_oid = old_oid; rtn = ddi_copyout(auth, (caddr_t)arg, sizeof (*auth), mode); } else { rtn = EIO; } kmem_free(auth, sizeof (*auth)); break; /* * ISCSI_AUTH_SET - */ case ISCSI_AUTH_SET: auth = (iscsi_auth_props_t *)kmem_zalloc(sizeof (*auth), KM_SLEEP); if (ddi_copyin((caddr_t)arg, auth, sizeof (*auth), mode)) { kmem_free(auth, sizeof (*auth)); rtn = EFAULT; break; } else if (auth->a_vers != ISCSI_INTERFACE_VERSION) { kmem_free(auth, sizeof (*auth)); rtn = EINVAL; break; } if (auth->a_oid == ihp->hba_oid) { name = ihp->hba_name; } else { rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); /* * If the oid does represent a session check to see * if it is a target oid. If so, return the target's * associated session. */ rtn = iscsi_sess_get(auth->a_oid, ihp, &isp); if (rtn != 0) { rtn = iscsi_sess_get_by_target(auth->a_oid, ihp, &isp); } rw_exit(&ihp->hba_sess_list_rwlock); /* * If rtn is zero then we have found an * existing session. Use the session name to * do param lookup. If rtn is non-zero then * create a targetparam object and use its name * for param lookup. */ if (rtn == 0) { name = isp->sess_name; } else { name = iscsi_targetparam_get_name(auth->a_oid); rtn = 0; } } if (name == NULL) { rtn = EFAULT; } else if (persistent_auth_set((char *)name, auth) == B_FALSE) { rtn = EIO; } kmem_free(auth, sizeof (*auth)); break; /* * ISCSI_AUTH_CLEAR - */ case ISCSI_AUTH_CLEAR: auth = (iscsi_auth_props_t *)kmem_alloc(sizeof (*auth), KM_SLEEP); if (ddi_copyin((caddr_t)arg, auth, sizeof (*auth), mode)) { kmem_free(auth, sizeof (*auth)); rtn = EFAULT; break; } else if (auth->a_vers != ISCSI_INTERFACE_VERSION) { kmem_free(auth, sizeof (*auth)); rtn = EINVAL; break; } rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); /* * If the oid does represent a session check to see * if it is a target oid. If so, return the target's * associated session. */ rtn = iscsi_sess_get(auth->a_oid, ihp, &isp); if (rtn != 0) { rtn = iscsi_sess_get_by_target(auth->a_oid, ihp, &isp); } rw_exit(&ihp->hba_sess_list_rwlock); /* * If rtn is zero then we have found an * existing session. Use the session name to * do param lookup. If rtn is non-zero then * create a targetparam object and use its name * for param lookup. */ if (rtn == 0) { name = isp->sess_name; } else { name = iscsi_targetparam_get_name(auth->a_oid); rtn = 0; discovered = B_FALSE; } if (name == NULL) { rtn = EFAULT; break; } if (persistent_auth_clear((char *)name) == B_FALSE) { rtn = EIO; } /* * ISCSI_TARGET_PARAM_CLEAR, ISCSI_CHAP_CLEAR and * ISCSI_AUTH_CLEAR ioctl are called sequentially to remove * target parameters. Here, the target that is not discovered * by initiator should be removed from the iscsi_targets list * residing in the memory. */ if (discovered == B_FALSE) { (void) iscsi_targetparam_remove_target(auth->a_oid); } kmem_free(auth, sizeof (*auth)); break; /* * ISCSI_DB_DUMP - */ case ISCSI_DB_DUMP: persistent_dump_data(); break; case ISCSI_USCSI: #ifdef _MULTI_DATAMODEL model = ddi_model_convert_from(mode & FMODELS); switch (model) { case DDI_MODEL_ILP32: if (ddi_copyin((caddr_t)arg, &iu32_caller, sizeof (iscsi_uscsi32_t), mode)) { rtn = EFAULT; break; } /* perform conversion from 32 -> 64 */ iu_caller.iu_vers = iu32_caller.iu_vers; iu_caller.iu_oid = iu32_caller.iu_oid; iu_caller.iu_tpgt = iu32_caller.iu_tpgt; iu_caller.iu_len = iu32_caller.iu_len; iu_caller.iu_lun = iu32_caller.iu_lun; uscsi_cmd32touscsi_cmd((&iu32_caller.iu_ucmd), (&iu_caller.iu_ucmd)); break; case DDI_MODEL_NONE: if (ddi_copyin((caddr_t)arg, &iu_caller, sizeof (iscsi_uscsi_t), mode)) { rtn = EFAULT; break; } break; default: ASSERT(FALSE); rtn = EINVAL; break; } #endif /* _MULTI_DATAMODEL */ /* If failures earlier break */ if (rtn != 0) { break; } /* copy from caller to internel cmd */ bcopy(&iu_caller, &iu, sizeof (iu)); if (iu.iu_vers != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; break; } /* * Check to see if oid references a target-param oid. If so, * find the associated session oid before getting lu list. */ if (iscsi_targetparam_get_name(iu.iu_oid) != NULL) { for (isp = ihp->hba_sess_list; isp; isp = isp->sess_next) { if (isp->sess_target_oid == iu.iu_oid) { target_oid = isp->sess_oid; break; } } } else { target_oid = iu.iu_oid; } /* make sure we have a matching session for this command */ rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); rtn = iscsi_sess_get(target_oid, ihp, &isp); if (rtn != 0) { rtn = iscsi_sess_get_by_target(target_oid, ihp, &isp); if (rtn != 0) { rw_exit(&ihp->hba_sess_list_rwlock); rtn = EFAULT; break; } } /* * If a caller buffer is present allocate duplicate * kernel space and copyin caller memory. */ if (iu.iu_ucmd.uscsi_buflen > 0) { iu.iu_ucmd.uscsi_bufaddr = (caddr_t)kmem_alloc( iu.iu_ucmd.uscsi_buflen, KM_SLEEP); if (ddi_copyin(iu_caller.iu_ucmd.uscsi_bufaddr, iu.iu_ucmd.uscsi_bufaddr, iu.iu_ucmd.uscsi_buflen, mode)) { rw_exit(&ihp->hba_sess_list_rwlock); rtn = EFAULT; break; } } /* * If a caller cdb is present allocate duplicate * kernel space and copyin caller memory. */ if (iu.iu_ucmd.uscsi_cdblen > 0) { iu.iu_ucmd.uscsi_cdb = (caddr_t)kmem_alloc( iu_caller.iu_ucmd.uscsi_cdblen, KM_SLEEP); if (ddi_copyin(iu_caller.iu_ucmd.uscsi_cdb, iu.iu_ucmd.uscsi_cdb, iu.iu_ucmd.uscsi_cdblen, mode)) { if (iu.iu_ucmd.uscsi_buflen > 0) { kmem_free(iu.iu_ucmd.uscsi_bufaddr, iu_caller.iu_ucmd.uscsi_buflen); } rw_exit(&ihp->hba_sess_list_rwlock); rtn = EFAULT; break; } } /* * If a caller request sense is present allocate * duplicate kernel space. No need to copyin. */ if (iu.iu_ucmd.uscsi_rqlen > 0) { iu.iu_ucmd.uscsi_rqbuf = (caddr_t)kmem_alloc( iu.iu_ucmd.uscsi_rqlen, KM_SLEEP); } /* issue passthru to io path handler */ rtn = iscsi_handle_passthru(isp, iu.iu_lun, &iu.iu_ucmd); if (rtn != 0) { rtn = EFAULT; } /* * If the caller had a buf we need to do a copyout * and free the kernel memory */ if (iu.iu_ucmd.uscsi_buflen > 0) { if (ddi_copyout(iu.iu_ucmd.uscsi_bufaddr, iu_caller.iu_ucmd.uscsi_bufaddr, iu.iu_ucmd.uscsi_buflen, mode) != 0) { rtn = EFAULT; } kmem_free(iu.iu_ucmd.uscsi_bufaddr, iu.iu_ucmd.uscsi_buflen); } /* We need to free kernel cdb, no need to copyout */ if (iu.iu_ucmd.uscsi_cdblen > 0) { kmem_free(iu.iu_ucmd.uscsi_cdb, iu.iu_ucmd.uscsi_cdblen); } /* * If the caller had a request sense we need to * do a copyout and free the kernel memory */ if (iu.iu_ucmd.uscsi_rqlen > 0) { if (ddi_copyout(iu.iu_ucmd.uscsi_rqbuf, iu_caller.iu_ucmd.uscsi_rqbuf, iu.iu_ucmd.uscsi_rqlen - iu.iu_ucmd.uscsi_rqresid, mode) != 0) { rtn = EFAULT; } kmem_free(iu.iu_ucmd.uscsi_rqbuf, iu.iu_ucmd.uscsi_rqlen); } #ifdef _MULTI_DATAMODEL switch (model = ddi_model_convert_from(mode & FMODELS)) { case DDI_MODEL_ILP32: if (iu.iu_ucmd.uscsi_status != 0) { iu32_caller.iu_ucmd.uscsi_status = iu.iu_ucmd.uscsi_status; iu32_caller.iu_ucmd.uscsi_rqresid = iu.iu_ucmd.uscsi_rqresid; } iu32_caller.iu_ucmd.uscsi_resid = iu.iu_ucmd.uscsi_resid; if (ddi_copyout((void *)&iu32_caller, (caddr_t)arg, sizeof (iscsi_uscsi32_t), mode) != 0) { rtn = EFAULT; } break; case DDI_MODEL_NONE: if (iu.iu_ucmd.uscsi_status != 0) { iu_caller.iu_ucmd.uscsi_status = iu.iu_ucmd.uscsi_status; iu_caller.iu_ucmd.uscsi_rqresid = iu.iu_ucmd.uscsi_rqresid; } iu_caller.iu_ucmd.uscsi_resid = iu.iu_ucmd.uscsi_resid; if (ddi_copyout((void *)&iu_caller, (caddr_t)arg, sizeof (iscsi_uscsi_t), mode) != 0) { rtn = EFAULT; } break; default: ASSERT(FALSE); } #endif /* _MULTI_DATAMODEL */ rw_exit(&ihp->hba_sess_list_rwlock); break; case ISCSI_SMF_ONLINE: if (ddi_copyin((caddr_t)arg, &did, sizeof (int), mode) != 0) { rtn = EFAULT; break; } /* just a theoretical case */ if (ihp->hba_persistent_loaded == B_FALSE) { rtn = EFAULT; break; } /* doesn't need to overwrite the status anymore */ mutex_enter(&ihp->hba_service_lock); if (ihp->hba_service_status_overwrite == B_TRUE) { ihp->hba_service_status = ISCSI_SERVICE_DISABLED; ihp->hba_service_status_overwrite = B_FALSE; } mutex_exit(&ihp->hba_service_lock); if (iscsi_enter_service_zone(ihp, ISCSI_SERVICE_ENABLED) == B_FALSE) { break; } rval = iscsi_door_bind(did); if (rval == B_TRUE) { rval = iscsid_start(ihp); if (rval == B_FALSE) { iscsi_door_unbind(); } } if (rval == B_TRUE) { iscsi_exit_service_zone(ihp, ISCSI_SERVICE_ENABLED); } else { iscsi_exit_service_zone(ihp, ISCSI_SERVICE_DISABLED); rtn = EFAULT; } break; case ISCSI_SMF_OFFLINE: if (iscsi_enter_service_zone(ihp, ISCSI_SERVICE_DISABLED) == B_FALSE) { break; } rval = iscsid_stop(ihp); iscsi_door_unbind(); iscsi_exit_service_zone(ihp, ISCSI_SERVICE_DISABLED); if (ddi_copyout((void *)&rval, (caddr_t)arg, sizeof (boolean_t), mode) != 0) { rtn = EFAULT; } break; case ISCSI_SMF_GET: mutex_enter(&ihp->hba_service_lock); while (ihp->hba_service_status == ISCSI_SERVICE_TRANSITION) { cv_wait(&ihp->hba_service_cv, &ihp->hba_service_lock); } if (ddi_copyout((void *)&ihp->hba_service_status, (caddr_t)arg, sizeof (boolean_t), mode) != 0) { rtn = EFAULT; } mutex_exit(&ihp->hba_service_lock); break; case ISCSI_DISCOVERY_EVENTS: /* * If discovery has not been completed and not in progress, * poke the discovery methods */ mutex_enter(&ihp->hba_discovery_events_mutex); method = ihp->hba_discovery_events; if ((method != ISCSI_ALL_DISCOVERY_METHODS) && (ihp->hba_discovery_in_progress == B_FALSE)) { ihp->hba_discovery_in_progress = B_TRUE; mutex_exit(&ihp->hba_discovery_events_mutex); iscsid_poke_discovery(ihp, iSCSIDiscoveryMethodUnknown); mutex_enter(&ihp->hba_discovery_events_mutex); ihp->hba_discovery_in_progress = B_FALSE; method = ihp->hba_discovery_events; } mutex_exit(&ihp->hba_discovery_events_mutex); if (ddi_copyout((void *)&method, (caddr_t)arg, sizeof (method), mode) != 0) rtn = EFAULT; break; /* * ISCSI_SENDTGTS_GET -- */ case ISCSI_SENDTGTS_GET: stl_hdr = iscsi_ioctl_copyin((caddr_t)arg, mode, sizeof (*stl_hdr)); if (stl_hdr == NULL) { rtn = EFAULT; break; } if (stl_hdr->stl_entry.e_vers != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; kmem_free(stl_hdr, sizeof (*stl_hdr)); break; } /* calculate how much memory user allocated for SendTgts */ stl_sz = sizeof (*stl_hdr); if (stl_hdr->stl_in_cnt > 0) { stl_sz += ((stl_hdr->stl_in_cnt - 1) * sizeof (iscsi_sendtgts_entry_t)); } /* allocate local SendTgts list of the same size */ istl = kmem_zalloc(stl_sz, KM_SLEEP); bcopy(stl_hdr, istl, sizeof (*stl_hdr)); kmem_free(stl_hdr, sizeof (*stl_hdr)); /* lock interface so only one SendTargets operation occurs */ sema_p(&ihp->hba_sendtgts_semaphore); rtn = iscsi_ioctl_sendtgts_get(ihp, istl); if (rtn == 0) { rtn = iscsi_ioctl_copyout(istl, stl_sz, (caddr_t)arg, mode); } /* release lock to allow another SendTargets discovery */ sema_v(&ihp->hba_sendtgts_semaphore); break; /* * ISCSI_ISNS_SERVER_GET -- */ case ISCSI_ISNS_SERVER_GET: server_pg_list_hdr = iscsi_ioctl_copyin((caddr_t)arg, mode, sizeof (*server_pg_list_hdr)); if (server_pg_list_hdr == NULL) { rtn = EFAULT; break; } /* If iSNS discovery mode is not set, return with zero entry */ method = persistent_disc_meth_get(); if ((method & iSCSIDiscoveryMethodISNS) == 0) { kmem_free(server_pg_list_hdr, sizeof (*server_pg_list_hdr)); server_pg_list_hdr = NULL; rtn = EACCES; break; } initiator_node_name = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); if (persistent_initiator_name_get(initiator_node_name, ISCSI_MAX_NAME_LEN) != B_TRUE) { kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); initiator_node_name = NULL; kmem_free(server_pg_list_hdr, sizeof (*server_pg_list_hdr)); server_pg_list_hdr = NULL; rtn = EIO; break; } if (strlen(initiator_node_name) == 0) { kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); initiator_node_name = NULL; kmem_free(server_pg_list_hdr, sizeof (*server_pg_list_hdr)); server_pg_list_hdr = NULL; rtn = EIO; break; } initiator_node_alias = kmem_zalloc( ISCSI_MAX_NAME_LEN, KM_SLEEP); if (persistent_alias_name_get(initiator_node_alias, ISCSI_MAX_NAME_LEN) != B_TRUE) { initiator_node_alias[0] = '\0'; } rtn = isns_query_one_server(&(server_pg_list_hdr->addr), ihp->hba_isid, (uint8_t *)initiator_node_name, (uint8_t *)initiator_node_alias, ISNS_INITIATOR_NODE_TYPE, &pg_list); if (rtn != isns_ok || pg_list == NULL) { kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); initiator_node_name = NULL; kmem_free(initiator_node_alias, ISCSI_MAX_NAME_LEN); initiator_node_alias = NULL; kmem_free(server_pg_list_hdr, sizeof (*server_pg_list_hdr)); server_pg_list_hdr = NULL; rtn = EIO; break; } /* * pg_list_sz is the size of the pg_list returned from the * isns_query_all * * pg_sz_copy_out is the size of the pg_list we are going to * return back to the caller * * server_pg_list_sz is total amount of data we are returning * back to the caller */ pg_list->pg_in_cnt = server_pg_list_hdr->addr_port_list.pg_in_cnt; pg_list_sz = sizeof (isns_portal_group_list_t); if (pg_list->pg_out_cnt > 0) { pg_list_sz += (pg_list->pg_out_cnt - 1) * sizeof (isns_portal_group_t); } /* * check if caller passed in a buffer with enough space * if there isn't enough space, fill the caller's buffer with * as much information as possible. * * if pg_out_cnt > pg_in_cnt, pg_out_cnt will be returned with * the total number of targets found * * if pg_out_cnt < pg_in_cnt, pg_out_cnt will be the number * of targets returned */ if (pg_list->pg_in_cnt < pg_list->pg_out_cnt) { pg_sz_copy_out = sizeof (isns_portal_group_list_t); if (pg_list->pg_in_cnt > 0) { pg_sz_copy_out += (pg_list->pg_in_cnt - 1) * sizeof (isns_portal_group_t); } server_pg_list_sz = sizeof (isns_server_portal_group_list_t); if (pg_list->pg_in_cnt > 0) { server_pg_list_sz += (pg_list->pg_in_cnt - 1) * sizeof (isns_portal_group_t); } } else { pg_sz_copy_out = pg_list_sz; server_pg_list_sz = sizeof (isns_server_portal_group_list_t); if (pg_list->pg_out_cnt > 0) { server_pg_list_sz += (pg_list->pg_out_cnt - 1) * sizeof (isns_portal_group_t); } } server_pg_list = (isns_server_portal_group_list_t *)kmem_zalloc( server_pg_list_sz, KM_SLEEP); bcopy(&(server_pg_list_hdr->addr), &(server_pg_list->addr), sizeof (server_pg_list->addr)); bcopy(pg_list, &server_pg_list->addr_port_list, pg_sz_copy_out); if (ddi_copyout(server_pg_list, (caddr_t)arg, server_pg_list_sz, mode) != 0) { rtn = EFAULT; } DTRACE_PROBE1(iscsi_ioctl_iscsi_isns_server_get_pg_sz, int, pg_list_sz); kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); initiator_node_name = NULL; kmem_free(initiator_node_alias, ISCSI_MAX_NAME_LEN); initiator_node_alias = NULL; kmem_free(pg_list, pg_list_sz); pg_list = NULL; kmem_free(server_pg_list, server_pg_list_sz); server_pg_list = NULL; kmem_free(server_pg_list_hdr, sizeof (*server_pg_list_hdr)); server_pg_list_hdr = NULL; break; /* * ISCSI_GET_CONFIG_SESSIONS -- */ case ISCSI_GET_CONFIG_SESSIONS: /* FALLTHRU */ case ISCSI_SET_CONFIG_SESSIONS: size = sizeof (*ics); ics = iscsi_ioctl_copyin((caddr_t)arg, mode, size); if (ics == NULL) { rtn = EFAULT; break; } /* verify version infomration */ if (ics->ics_ver != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; kmem_free(ics, size); ics = NULL; break; } /* Check to see if we need to copy in more memory */ if (ics->ics_in > 1) { /* record correct size */ size = ISCSI_SESSION_CONFIG_SIZE(ics->ics_in); /* free old buffer */ kmem_free(ics, sizeof (*ics)); /* copy in complete buffer size */ ics = iscsi_ioctl_copyin((caddr_t)arg, mode, size); if (ics == NULL) { rtn = EFAULT; break; } } /* switch action based on get or set */ if (cmd == ISCSI_GET_CONFIG_SESSIONS) { /* get */ rtn = iscsi_ioctl_get_config_sess(ihp, ics); if (rtn == 0) { /* copyout data for gets */ rtn = iscsi_ioctl_copyout(ics, size, (caddr_t)arg, mode); } else { kmem_free(ics, size); ics = NULL; } } else { /* set */ rtn = iscsi_ioctl_set_config_sess(ihp, ics); if (iscsiboot_prop) { if (iscsi_cmp_boot_sess_oid(ihp, ics->ics_oid)) { /* * found active session for this object * or this is initiator object * with mpxio enabled */ if (!iscsi_reconfig_boot_sess(ihp)) { kmem_free(ics, size); ics = NULL; rtn = EINVAL; break; } } } kmem_free(ics, size); ics = NULL; } break; case ISCSI_IS_ACTIVE: /* * dhcpagent calls here to check if there are * active iSCSI sessions */ instance = 0; if (iscsiboot_prop) { instance = 1; } if (!instance) { rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); for (isp = ihp->hba_sess_list; isp; isp = isp->sess_next) { if ((isp->sess_state == ISCSI_SESS_STATE_LOGGED_IN) && (isp->sess_lun_list != NULL)) { instance = 1; break; } } rw_exit(&ihp->hba_sess_list_rwlock); } size = sizeof (instance); if (ddi_copyout(&instance, (caddr_t)arg, size, mode) != 0) { rtn = EFAULT; } break; case ISCSI_BOOTPROP_GET: size = sizeof (*bootProp); bootProp = iscsi_ioctl_copyin((caddr_t)arg, mode, size); if (bootProp == NULL) { rtn = EFAULT; break; } bootProp->hba_mpxio_enabled = iscsi_chk_bootlun_mpxio(ihp); if (iscsiboot_prop == NULL) { bootProp->iscsiboot = 0; rtn = iscsi_ioctl_copyout(bootProp, size, (caddr_t)arg, mode); break; } else { bootProp->iscsiboot = 1; } if (iscsiboot_prop->boot_init.ini_name != NULL) { (void) strncpy((char *)bootProp->ini_name.n_name, (char *)iscsiboot_prop->boot_init.ini_name, ISCSI_MAX_NAME_LEN); } if (iscsiboot_prop->boot_init.ini_chap_name != NULL) { bootProp->auth.a_auth_method = authMethodCHAP; (void) strncpy((char *)bootProp->ini_chap.c_user, (char *)iscsiboot_prop->boot_init.ini_chap_name, ISCSI_MAX_NAME_LEN); (void) strncpy((char *)bootProp->ini_chap.c_secret, (char *)iscsiboot_prop->boot_init.ini_chap_sec, ISCSI_CHAP_SECRET_LEN); if (iscsiboot_prop->boot_tgt.tgt_chap_name != NULL) { bootProp->auth.a_bi_auth = B_TRUE; } else { bootProp->auth.a_bi_auth = B_FALSE; } } if (iscsiboot_prop->boot_tgt.tgt_name != NULL) { (void) strncpy((char *)bootProp->tgt_name.n_name, (char *)iscsiboot_prop->boot_tgt.tgt_name, ISCSI_MAX_NAME_LEN); } if (iscsiboot_prop->boot_tgt.tgt_chap_name != NULL) { (void) strncpy((char *)bootProp->tgt_chap.c_user, (char *)iscsiboot_prop->boot_tgt.tgt_chap_name, ISCSI_MAX_NAME_LEN); (void) strncpy((char *)bootProp->tgt_chap.c_secret, (char *)iscsiboot_prop->boot_tgt.tgt_chap_sec, ISCSI_CHAP_SECRET_LEN); } rtn = iscsi_ioctl_copyout(bootProp, size, (caddr_t)arg, mode); break; case ISCSI_TARGET_REENUM: size = sizeof (iscsi_reen_t); reenum = (iscsi_reen_t *)kmem_alloc(size, KM_SLEEP); if (ddi_copyin((caddr_t)arg, reenum, size, mode) != 0) { rtn = EFAULT; kmem_free(reenum, size); break; } if (reenum->re_ver != ISCSI_INTERFACE_VERSION) { rtn = EINVAL; kmem_free(reenum, size); break; } rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); rtn = iscsi_sess_get(reenum->re_oid, ihp, &isp); if (rtn != 0) { rtn = iscsi_sess_get_by_target( reenum->re_oid, ihp, &isp); } if (rtn != 0) { rw_exit(&ihp->hba_sess_list_rwlock); kmem_free(reenum, size); break; } kmem_free(reenum, size); if (isp->sess_type == ISCSI_SESS_TYPE_NORMAL) { rw_enter(&isp->sess_state_rwlock, RW_READER); if ((isp->sess_state == ISCSI_SESS_STATE_LOGGED_IN) && (iscsi_sess_enum_request(isp, B_TRUE, isp->sess_state_event_count) == ISCSI_SESS_ENUM_SUBMITTED)) { (void) iscsi_sess_enum_query(isp); } rw_exit(&isp->sess_state_rwlock); } rw_exit(&ihp->hba_sess_list_rwlock); break; case ISCSI_TUNABLE_PARAM_SET: tpss = (iscsi_tunable_object_t *)kmem_alloc(sizeof (*tpss), KM_SLEEP); if (ddi_copyin((caddr_t)arg, tpss, sizeof (*tpss), mode)) { rtn = EFAULT; kmem_free(tpss, sizeof (*tpss)); break; } rtn = iscsi_ioctl_set_tunable_param(ihp, tpss); kmem_free(tpss, sizeof (*tpss)); break; case ISCSI_TUNABLE_PARAM_GET: tpsg = (iscsi_tunable_object_t *)kmem_alloc(sizeof (*tpsg), KM_SLEEP); if (ddi_copyin((caddr_t)arg, tpsg, sizeof (*tpsg), mode)) { rtn = EFAULT; kmem_free(tpsg, sizeof (*tpsg)); break; } if (tpsg->t_oid == ihp->hba_oid) { /* initiator */ name = ihp->hba_name; if (iscsi_get_persisted_tunable_param((uchar_t *)name, tpsg) == 1) { /* * no persisted tunable parameters found * for iscsi initiator, use default tunable * params for initiator node. */ iscsi_get_tunable_default(tpsg); } } else { /* check whether it is a target oid */ name = iscsi_targetparam_get_name(tpsg->t_oid); if (name == NULL) { /* invalid node name */ rtn = EINVAL; kmem_free(tpsg, sizeof (*tpsg)); break; } if (iscsi_get_persisted_tunable_param((uchar_t *)name, tpsg) == 1) { /* * no persisted tunable parameters found for * iscsi target, use initiator's configure. */ if (iscsi_get_persisted_tunable_param( (uchar_t *)ihp->hba_name, tpsg) == -1) { /* * No initiator tunable parameters set * use default value for target */ iscsi_get_tunable_default(tpsg); } } } if (ddi_copyout(tpsg, (caddr_t)arg, sizeof (iscsi_tunable_object_t), mode) != 0) { rtn = EFAULT; } kmem_free(tpsg, sizeof (*tpsg)); break; default: rtn = ENOTTY; cmn_err(CE_NOTE, "unrecognized ioctl 0x%x", cmd); } /* end of ioctl type switch/cases */ if ((cmd != ISCSI_SMF_ONLINE) && (cmd != ISCSI_SMF_OFFLINE) && (cmd != ISCSI_SMF_GET)) { /* other cmds need to release the service */ iscsi_client_release_service(ihp); } return (rtn); } /* * +--------------------------------------------------------------------+ * | End of cb_ops routines | * +--------------------------------------------------------------------+ */ /* * +--------------------------------------------------------------------+ * | Common scsi_tran support routines | * +--------------------------------------------------------------------+ */ /* * iscsi_i_commoncap -- SCSA host adapter get/set capability routines. * * Need to determine if any of these can be determined through the iSCSI * protocol. For now just return error on most. */ /* ARGSUSED */ static int iscsi_i_commoncap(struct scsi_address *ap, char *cap, int val, int tgtonly, int doset) { int rtn; int cidx; iscsi_lun_t *ilp; ASSERT((ap)->a_hba_tran->tran_hba_private != NULL); ilp = (iscsi_lun_t *)((ap)->a_hba_tran->tran_tgt_private); ASSERT(ilp != NULL); if (cap == (char *)0) { return (FALSE); } cidx = scsi_hba_lookup_capstr(cap); if (cidx == -1) { return (cidx); } /* * Process setcap request. */ if (doset) { /* * At present, we can only set binary (0/1) values */ switch (cidx) { case SCSI_CAP_LUN_RESET: if (val) { ilp->lun_cap |= ISCSI_LUN_CAP_RESET; } else { ilp->lun_cap &= ~ISCSI_LUN_CAP_RESET; } rtn = TRUE; break; default: /* * None of these are settable via * the capability interface. */ rtn = FALSE; break; } /* * Process getcap request. */ } else { switch (cidx) { case SCSI_CAP_DMA_MAX: /* no DMA, Psuedo value */ rtn = INT32_MAX; break; case SCSI_CAP_INITIATOR_ID: rtn = 7; break; case SCSI_CAP_ARQ: case SCSI_CAP_RESET_NOTIFICATION: case SCSI_CAP_TAGGED_QING: rtn = TRUE; break; case SCSI_CAP_SCSI_VERSION: rtn = SCSI_VERSION_3; break; case SCSI_CAP_INTERCONNECT_TYPE: rtn = INTERCONNECT_FABRIC; break; case SCSI_CAP_LUN_RESET: rtn = ((ilp->lun_cap & ISCSI_LUN_CAP_RESET) != 0) ? TRUE : FALSE; break; case SCSI_CAP_CDB_LEN: /* * iSCSI RFC 3720 defines a default 16 byte * CDB as part of the Basic Header Segment * (BHS) (10.2.1) and allows for an Additional * Header Segment (AHS) Length of 255 * 4 * (10.2.1.5). The AHS length can be used * for different purposes two of which are * Extended CDB ADS (10.2.2.3) and Bidirectional * Expected Read-Data Length AHS (10.2.2.4). * The largest header of these consumes is * 32 bytes. So the total Max CDB Length is * 16 + ((255 * 4 ) - 32) = 1004. */ rtn = 1004; break; default: rtn = UNDEFINED; break; } } return (rtn); } /* * iscsi_virt_lun_init - attempts to complete a mdi/scsi_vhci binding * * This routine is used to associate the tran_tgt_private to our ilp * structure. This function is indirectly called from our * iscsi_lun_create_xxx routines. These routines must prevent * the session and lun lists from changing during this call. */ /* ARGSUSED */ static int iscsi_virt_lun_init(dev_info_t *hba_dip, dev_info_t *lun_dip, scsi_hba_tran_t *hba_tran, struct scsi_device *sd) { iscsi_lun_t *ilp = NULL; iscsi_lun_t *ilp_check = NULL; iscsi_sess_t *isp = NULL; char *lun_guid = NULL; mdi_pathinfo_t *pip = NULL; iscsi_hba_t *ihp = (iscsi_hba_t *)hba_tran->tran_hba_private; char target_port_name[MAX_NAME_PROP_SIZE]; /* * Here's a nice little piece of undocumented stuff. */ if ((pip = (mdi_pathinfo_t *)sd->sd_private) == NULL) { /* * Very bad news if this occurs. Somehow SCSI_vhci has * lost the pathinfo node for this target. */ return (DDI_NOT_WELL_FORMED); } ilp = (iscsi_lun_t *)mdi_pi_get_phci_private(pip); /* * +----------------------------------------------------+ * | Looking to find the target device via the property | * | is not required since the driver can easily get | * | this information from the mdi_phci_get_private() | * | call above. This is just a consistency check | * | which can be removed. | */ if (mdi_prop_lookup_string(pip, MDI_GUID, &lun_guid) != DDI_PROP_SUCCESS) { return (DDI_NOT_WELL_FORMED); } for (isp = ihp->hba_sess_list; isp; isp = isp->sess_next) { /* If this isn't the matching session continue */ if (ilp->lun_sess != isp) { continue; } /* * We are already holding the lun list rwlock * for this thread on the callers side of mdi_pi_online * or ndi_devi_online. Which lead to this functions * call. */ for (ilp_check = isp->sess_lun_list; ilp_check; ilp_check = ilp_check->lun_next) { /* * If this is the matching LUN and contains * the same LUN GUID then break we found our * match. */ if ((ilp == ilp_check) && (strcmp(lun_guid, ilp_check->lun_guid) == 0)) { break; } } if (ilp_check != NULL) { break; } } /* * Free resource that's no longer required. */ if (lun_guid != NULL) (void) mdi_prop_free(lun_guid); if (ilp_check == NULL) { /* * Failed to find iSCSI LUN in HBA chain based * on the GUID that was stored as a property on * the pathinfo node. */ return (DDI_NOT_WELL_FORMED); } if (ilp != ilp_check) { /* * The iSCSI target that we found on the HBA link is * different than the iSCSI target that was stored as * private data on the pathinfo node. */ return (DDI_NOT_WELL_FORMED); } /* * | End of consistency check | * +----------------------------------------------------+ */ hba_tran->tran_tgt_private = ilp; target_port_name[0] = '\0'; if (ilp->lun_sess->sess_tpgt_conf == ISCSI_DEFAULT_TPGT) { (void) snprintf(target_port_name, MAX_NAME_PROP_SIZE, "%02x%02x%02x%02x%02x%02x,%s", ilp->lun_sess->sess_isid[0], ilp->lun_sess->sess_isid[1], ilp->lun_sess->sess_isid[2], ilp->lun_sess->sess_isid[3], ilp->lun_sess->sess_isid[4], ilp->lun_sess->sess_isid[5], ilp->lun_sess->sess_name); } else { (void) snprintf(target_port_name, MAX_NAME_PROP_SIZE, "%02x%02x%02x%02x%02x%02x,%s,%d", ilp->lun_sess->sess_isid[0], ilp->lun_sess->sess_isid[1], ilp->lun_sess->sess_isid[2], ilp->lun_sess->sess_isid[3], ilp->lun_sess->sess_isid[4], ilp->lun_sess->sess_isid[5], ilp->lun_sess->sess_name, ilp->lun_sess->sess_tpgt_conf); } if (mdi_prop_update_string(pip, SCSI_ADDR_PROP_TARGET_PORT, target_port_name) != DDI_PROP_SUCCESS) { cmn_err(CE_WARN, "iscsi_virt_lun_init: Creating '" SCSI_ADDR_PROP_TARGET_PORT "' property on Path(%p) " "for Target(%s), Lun(%d) Failed", (void *)pip, ilp->lun_sess->sess_name, ilp->lun_num); } return (DDI_SUCCESS); } /* * iscsi_phys_lun_init - attempts to complete a ndi binding * * This routine is used to associate the tran_tgt_private to our * ilp structure. This function is indirectly called from our * iscsi_lun_create_xxx routines. These routines must prevent * the session and lun lists from changing during this call. */ static int iscsi_phys_lun_init(dev_info_t *hba_dip, dev_info_t *lun_dip, scsi_hba_tran_t *hba_tran, struct scsi_device *sd) { int rtn = DDI_SUCCESS; iscsi_hba_t *ihp = NULL; iscsi_sess_t *isp = NULL; iscsi_lun_t *ilp = NULL; char target_port_name[MAX_NAME_PROP_SIZE]; int *words = NULL; uint_t nwords = 0; ASSERT(hba_dip); ASSERT(lun_dip); ASSERT(hba_tran); ASSERT(sd); ihp = (iscsi_hba_t *)hba_tran->tran_hba_private; ASSERT(ihp); if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, lun_dip, DDI_PROP_DONTPASS, LUN_PROP, &words, &nwords) != DDI_PROP_SUCCESS) { cmn_err(CE_WARN, "iscsi_phys_lun_init: Returning DDI_FAILURE:" "lun for %s (instance %d)", ddi_get_name(lun_dip), ddi_get_instance(lun_dip)); return (DDI_FAILURE); } if (nwords == 0) { ddi_prop_free(words); return (DDI_FAILURE); } ASSERT(words != NULL); /* See if we already created this session */ /* Walk the HBA's session list */ for (isp = ihp->hba_sess_list; isp; isp = isp->sess_next) { /* compare target name as the unique identifier */ if (sd->sd_address.a_target == isp->sess_oid) { /* found match */ break; } } /* If we found matching session continue searching for tgt */ if (isp != NULL) { /* * Search for the matching iscsi lun structure. We don't * need to hold the READER for the lun list at this point. * because the tran_get_name is being called from the online * function which is already holding a reader on the lun * list. */ for (ilp = isp->sess_lun_list; ilp; ilp = ilp->lun_next) { if (*words == ilp->lun_num) { /* found match */ break; } } if (ilp != NULL) { /* * tgt found path it to the tran_lun_private * this is used later for fast access on * init_pkt and start */ hba_tran->tran_tgt_private = ilp; } else { /* tgt not found */ ddi_prop_free(words); return (DDI_FAILURE); } } else { /* sess not found */ ddi_prop_free(words); return (DDI_FAILURE); } ddi_prop_free(words); target_port_name[0] = '\0'; if (ilp->lun_sess->sess_tpgt_conf == ISCSI_DEFAULT_TPGT) { (void) snprintf(target_port_name, MAX_NAME_PROP_SIZE, "%02x%02x%02x%02x%02x%02x,%s", ilp->lun_sess->sess_isid[0], ilp->lun_sess->sess_isid[1], ilp->lun_sess->sess_isid[2], ilp->lun_sess->sess_isid[3], ilp->lun_sess->sess_isid[4], ilp->lun_sess->sess_isid[5], ilp->lun_sess->sess_name); } else { (void) snprintf(target_port_name, MAX_NAME_PROP_SIZE, "%02x%02x%02x%02x%02x%02x,%s,%d", ilp->lun_sess->sess_isid[0], ilp->lun_sess->sess_isid[1], ilp->lun_sess->sess_isid[2], ilp->lun_sess->sess_isid[3], ilp->lun_sess->sess_isid[4], ilp->lun_sess->sess_isid[5], ilp->lun_sess->sess_name, ilp->lun_sess->sess_tpgt_conf); } if (ddi_prop_update_string(DDI_DEV_T_NONE, lun_dip, SCSI_ADDR_PROP_TARGET_PORT, target_port_name) != DDI_PROP_SUCCESS) { cmn_err(CE_WARN, "iscsi_phys_lun_init: Creating '" SCSI_ADDR_PROP_TARGET_PORT "' property on Target(%s), " "Lun(%d) Failed", ilp->lun_sess->sess_name, ilp->lun_num); } return (rtn); } /* * +--------------------------------------------------------------------+ * | End of scsi_tran support routines | * +--------------------------------------------------------------------+ */ /* * +--------------------------------------------------------------------+ * | Begin of struct utility routines | * +--------------------------------------------------------------------+ */ /* * iscsi_set_default_login_params - This function sets the * driver default login params. This is using during the * creation of our iSCSI HBA structure initialization by * could be used at other times to reset back to the defaults. */ void iscsi_set_default_login_params(iscsi_login_params_t *params) { params->immediate_data = ISCSI_DEFAULT_IMMEDIATE_DATA; params->initial_r2t = ISCSI_DEFAULT_INITIALR2T; params->first_burst_length = ISCSI_DEFAULT_FIRST_BURST_LENGTH; params->max_burst_length = ISCSI_DEFAULT_MAX_BURST_LENGTH; params->data_pdu_in_order = ISCSI_DEFAULT_DATA_PDU_IN_ORDER; params->data_sequence_in_order = ISCSI_DEFAULT_DATA_SEQUENCE_IN_ORDER; params->default_time_to_wait = ISCSI_DEFAULT_TIME_TO_WAIT; params->default_time_to_retain = ISCSI_DEFAULT_TIME_TO_RETAIN; params->header_digest = ISCSI_DEFAULT_HEADER_DIGEST; params->data_digest = ISCSI_DEFAULT_DATA_DIGEST; params->max_recv_data_seg_len = ISCSI_DEFAULT_MAX_RECV_SEG_LEN; params->max_xmit_data_seg_len = ISCSI_DEFAULT_MAX_XMIT_SEG_LEN; params->max_connections = ISCSI_DEFAULT_MAX_CONNECTIONS; params->max_outstanding_r2t = ISCSI_DEFAULT_MAX_OUT_R2T; params->error_recovery_level = ISCSI_DEFAULT_ERROR_RECOVERY_LEVEL; params->ifmarker = ISCSI_DEFAULT_IFMARKER; params->ofmarker = ISCSI_DEFAULT_OFMARKER; } /* Helper function to sets the driver default tunable parameters */ static void iscsi_set_default_tunable_params(iscsi_tunable_params_t *params) { params->recv_login_rsp_timeout = ISCSI_DEFAULT_RX_TIMEOUT_VALUE; params->conn_login_max = ISCSI_DEFAULT_CONN_DEFAULT_LOGIN_MAX; params->polling_login_delay = ISCSI_DEFAULT_LOGIN_POLLING_DELAY; } /* * +--------------------------------------------------------------------+ * | End of struct utility routines | * +--------------------------------------------------------------------+ */ /* * +--------------------------------------------------------------------+ * | Begin of ioctl utility routines | * +--------------------------------------------------------------------+ */ /* * iscsi_get_param - This function is a helper to ISCSI_GET_PARAM * IOCTL */ int iscsi_get_param(iscsi_login_params_t *params, boolean_t valid_flag, iscsi_param_get_t *ipgp) { int rtn = 0; /* ---- Default to settable, possibly changed later ---- */ ipgp->g_value.v_valid = valid_flag; ipgp->g_value.v_settable = B_TRUE; switch (ipgp->g_param) { /* * Boolean parameters */ case ISCSI_LOGIN_PARAM_DATA_SEQUENCE_IN_ORDER: ipgp->g_value.v_bool.b_current = params->data_sequence_in_order; ipgp->g_value.v_bool.b_default = ISCSI_DEFAULT_DATA_SEQUENCE_IN_ORDER; break; case ISCSI_LOGIN_PARAM_IMMEDIATE_DATA: ipgp->g_value.v_bool.b_current = params->immediate_data; ipgp->g_value.v_bool.b_default = ISCSI_DEFAULT_IMMEDIATE_DATA; break; case ISCSI_LOGIN_PARAM_INITIAL_R2T: ipgp->g_value.v_bool.b_current = params->initial_r2t; ipgp->g_value.v_bool.b_default = ISCSI_DEFAULT_IMMEDIATE_DATA; break; case ISCSI_LOGIN_PARAM_DATA_PDU_IN_ORDER: ipgp->g_value.v_bool.b_current = params->data_pdu_in_order; ipgp->g_value.v_bool.b_default = ISCSI_DEFAULT_DATA_PDU_IN_ORDER; break; /* * Integer parameters */ case ISCSI_LOGIN_PARAM_HEADER_DIGEST: ipgp->g_value.v_integer.i_current = params->header_digest; ipgp->g_value.v_integer.i_default = ISCSI_DEFAULT_HEADER_DIGEST; ipgp->g_value.v_integer.i_min = 0; ipgp->g_value.v_integer.i_max = ISCSI_MAX_HEADER_DIGEST; ipgp->g_value.v_integer.i_incr = 1; break; case ISCSI_LOGIN_PARAM_DATA_DIGEST: ipgp->g_value.v_integer.i_current = params->data_digest; ipgp->g_value.v_integer.i_default = ISCSI_DEFAULT_DATA_DIGEST; ipgp->g_value.v_integer.i_min = 0; ipgp->g_value.v_integer.i_max = ISCSI_MAX_DATA_DIGEST; ipgp->g_value.v_integer.i_incr = 1; break; case ISCSI_LOGIN_PARAM_DEFAULT_TIME_2_RETAIN: ipgp->g_value.v_integer.i_current = params->default_time_to_retain; ipgp->g_value.v_integer.i_default = ISCSI_DEFAULT_TIME_TO_RETAIN; ipgp->g_value.v_integer.i_min = 0; ipgp->g_value.v_integer.i_max = ISCSI_MAX_TIME2RETAIN; ipgp->g_value.v_integer.i_incr = 1; break; case ISCSI_LOGIN_PARAM_DEFAULT_TIME_2_WAIT: ipgp->g_value.v_integer.i_current = params->default_time_to_wait; ipgp->g_value.v_integer.i_default = ISCSI_DEFAULT_TIME_TO_WAIT; ipgp->g_value.v_integer.i_min = 0; ipgp->g_value.v_integer.i_max = ISCSI_MAX_TIME2WAIT; ipgp->g_value.v_integer.i_incr = 1; break; case ISCSI_LOGIN_PARAM_ERROR_RECOVERY_LEVEL: ipgp->g_value.v_integer.i_current = params->error_recovery_level; ipgp->g_value.v_integer.i_default = ISCSI_DEFAULT_ERROR_RECOVERY_LEVEL; ipgp->g_value.v_integer.i_min = 0; ipgp->g_value.v_integer.i_max = ISCSI_MAX_ERROR_RECOVERY_LEVEL; ipgp->g_value.v_integer.i_incr = 1; ipgp->g_value.v_settable = B_FALSE; break; case ISCSI_LOGIN_PARAM_FIRST_BURST_LENGTH: ipgp->g_value.v_integer.i_current = params->first_burst_length; ipgp->g_value.v_integer.i_default = ISCSI_DEFAULT_FIRST_BURST_LENGTH; ipgp->g_value.v_integer.i_min = 512; ipgp->g_value.v_integer.i_max = ISCSI_MAX_FIRST_BURST_LENGTH; ipgp->g_value.v_integer.i_incr = 1; break; case ISCSI_LOGIN_PARAM_MAX_BURST_LENGTH: ipgp->g_value.v_integer.i_current = params->max_burst_length; ipgp->g_value.v_integer.i_default = ISCSI_DEFAULT_MAX_BURST_LENGTH; ipgp->g_value.v_integer.i_min = 512; ipgp->g_value.v_integer.i_max = ISCSI_MAX_BURST_LENGTH; ipgp->g_value.v_integer.i_incr = 1; break; case ISCSI_LOGIN_PARAM_MAX_CONNECTIONS: ipgp->g_value.v_integer.i_current = params->max_connections; ipgp->g_value.v_settable = B_FALSE; ipgp->g_value.v_integer.i_default = ISCSI_DEFAULT_MAX_CONNECTIONS; ipgp->g_value.v_integer.i_min = 1; ipgp->g_value.v_integer.i_max = ISCSI_MAX_CONNECTIONS; ipgp->g_value.v_integer.i_incr = 1; break; case ISCSI_LOGIN_PARAM_OUTSTANDING_R2T: ipgp->g_value.v_integer.i_current = params->max_outstanding_r2t; ipgp->g_value.v_settable = B_FALSE; ipgp->g_value.v_integer.i_default = ISCSI_DEFAULT_MAX_OUT_R2T; ipgp->g_value.v_integer.i_min = 1; ipgp->g_value.v_integer.i_max = ISCSI_MAX_OUTSTANDING_R2T; ipgp->g_value.v_integer.i_incr = 1; break; case ISCSI_LOGIN_PARAM_MAX_RECV_DATA_SEGMENT_LENGTH: ipgp->g_value.v_integer.i_current = params->max_recv_data_seg_len; ipgp->g_value.v_integer.i_default = ISCSI_DEFAULT_MAX_RECV_SEG_LEN; ipgp->g_value.v_integer.i_min = 512; ipgp->g_value.v_integer.i_max = ISCSI_MAX_RECV_DATA_SEGMENT_LENGTH; ipgp->g_value.v_integer.i_incr = 1; break; default: rtn = EINVAL; } return (rtn); } /* * +--------------------------------------------------------------------+ * | End of ioctl utility routines | * +--------------------------------------------------------------------+ */ /* * iscsi_get_name_from_iqn - Translates a normal iqn/eui into a * IEEE safe address. IEEE addresses have a number of characters * set aside as reserved. */ static void iscsi_get_name_from_iqn(char *name, int name_max_len) { char *tmp = NULL; char *oldch = NULL; char *newch = NULL; tmp = kmem_zalloc(MAX_GET_NAME_SIZE, KM_SLEEP); for (oldch = &name[0], newch = &tmp[0]; *oldch != '\0'; oldch++, newch++) { switch (*oldch) { case ':': *newch++ = '%'; *newch++ = '3'; *newch = 'A'; break; case ' ': *newch++ = '%'; *newch++ = '2'; *newch = '0'; break; case '@': *newch++ = '%'; *newch++ = '4'; *newch = '0'; break; case '/': *newch++ = '%'; *newch++ = '2'; *newch = 'F'; break; default: *newch = *oldch; } } (void) strncpy(name, tmp, name_max_len); kmem_free(tmp, MAX_GET_NAME_SIZE); } /* * iscsi_get_name_to_iqn - Converts IEEE safe address back * into a iscsi iqn/eui. */ static void iscsi_get_name_to_iqn(char *name, int name_max_len) { char *tmp = NULL; char *oldch = NULL; char *newch = NULL; tmp = kmem_zalloc(MAX_GET_NAME_SIZE, KM_SLEEP); for (oldch = &name[0], newch = &tmp[0]; *oldch != '\0'; oldch++, newch++) { if (*oldch == '%') { switch (*(oldch+1)) { case '2': if (*(oldch+2) == '0') { *newch = ' '; oldch += 2; } else if (*(oldch+2) == 'F') { *newch = '/'; oldch += 2; } else { *newch = *oldch; } break; case '3': if (*(oldch+2) == 'A') { *newch = ':'; oldch += 2; } else { *newch = *oldch; } break; case '4': if (*(oldch+2) == '0') { *newch = '@'; oldch += 2; } else { *newch = *oldch; } break; default: *newch = *oldch; } } else { *newch = *oldch; } } (void) strncpy(name, tmp, name_max_len); kmem_free(tmp, MAX_GET_NAME_SIZE); } /* * iscsi_get_persisted_param * - a helper to ISCSI_GET_PARAM ioctl * * On return 0 means persisted parameter found */ int iscsi_get_persisted_param(uchar_t *name, iscsi_param_get_t *ipgp, iscsi_login_params_t *params) { int rtn = 1; persistent_param_t *pparam; if (name == NULL || strlen((char *)name) == 0) { return (rtn); } pparam = (persistent_param_t *)kmem_zalloc(sizeof (*pparam), KM_SLEEP); if (persistent_param_get((char *)name, pparam) == B_TRUE) { if (pparam->p_bitmap & (1 << ipgp->g_param)) { /* Found configured parameter. */ bcopy(&pparam->p_params, params, sizeof (*params)); rtn = 0; } } kmem_free(pparam, sizeof (*pparam)); return (rtn); } /* * iscsi_override_target_default - helper function set the target's default * login parameter if there is a configured initiator parameter. * */ static void iscsi_override_target_default(iscsi_hba_t *ihp, iscsi_param_get_t *ipg) { persistent_param_t *pp; iscsi_login_params_t *params; pp = (persistent_param_t *)kmem_zalloc(sizeof (*pp), KM_SLEEP); if (persistent_param_get((char *)ihp->hba_name, pp) == B_TRUE) { if (pp->p_bitmap & (1 << ipg->g_param)) { params = &pp->p_params; switch (ipg->g_param) { case ISCSI_LOGIN_PARAM_DATA_SEQUENCE_IN_ORDER: ipg->g_value.v_bool.b_default = params->data_sequence_in_order; break; case ISCSI_LOGIN_PARAM_IMMEDIATE_DATA: ipg->g_value.v_bool.b_default = params->immediate_data; break; case ISCSI_LOGIN_PARAM_INITIAL_R2T: ipg->g_value.v_bool.b_default = params->initial_r2t; break; case ISCSI_LOGIN_PARAM_DATA_PDU_IN_ORDER: ipg->g_value.v_bool.b_default = params->data_pdu_in_order; break; case ISCSI_LOGIN_PARAM_HEADER_DIGEST: ipg->g_value.v_integer.i_default = params->header_digest; break; case ISCSI_LOGIN_PARAM_DATA_DIGEST: ipg->g_value.v_integer.i_default = params->data_digest; break; case ISCSI_LOGIN_PARAM_DEFAULT_TIME_2_RETAIN: ipg->g_value.v_integer.i_default = params->default_time_to_retain; break; case ISCSI_LOGIN_PARAM_DEFAULT_TIME_2_WAIT: ipg->g_value.v_integer.i_default = params->default_time_to_wait; break; case ISCSI_LOGIN_PARAM_ERROR_RECOVERY_LEVEL: ipg->g_value.v_integer.i_default = params->error_recovery_level; break; case ISCSI_LOGIN_PARAM_FIRST_BURST_LENGTH: ipg->g_value.v_integer.i_default = params->first_burst_length; break; case ISCSI_LOGIN_PARAM_MAX_BURST_LENGTH: ipg->g_value.v_integer.i_default = params->max_burst_length; break; case ISCSI_LOGIN_PARAM_MAX_CONNECTIONS: ipg->g_value.v_integer.i_default = params->max_connections; break; case ISCSI_LOGIN_PARAM_OUTSTANDING_R2T: ipg->g_value.v_integer.i_default = params->max_outstanding_r2t; break; case ISCSI_LOGIN_PARAM_MAX_RECV_DATA_SEGMENT_LENGTH: ipg->g_value.v_integer.i_default = params->max_xmit_data_seg_len; break; default: break; } } } kmem_free(pp, sizeof (*pp)); } static boolean_t iscsi_cmp_boot_sess_oid(iscsi_hba_t *ihp, uint32_t oid) { iscsi_sess_t *isp = NULL; if (iscsi_chk_bootlun_mpxio(ihp)) { for (isp = ihp->hba_sess_list; isp; isp = isp->sess_next) { if ((isp->sess_oid == oid) && isp->sess_boot) { /* oid is session object */ break; } if ((isp->sess_target_oid == oid) && isp->sess_boot) { /* * oid is target object while * this session is boot session */ break; } } if (oid == ihp->hba_oid) { /* oid is initiator object id */ return (B_TRUE); } else if ((isp != NULL) && (isp->sess_boot)) { /* oid is boot session object id */ return (B_TRUE); } } return (B_FALSE); } /* * iscsi_client_request_service - request the iSCSI service * returns true if the service is enabled and increases the count * returns false if the service is disabled * blocks until the service status is either enabled or disabled */ boolean_t iscsi_client_request_service(iscsi_hba_t *ihp) { boolean_t rval = B_TRUE; mutex_enter(&ihp->hba_service_lock); while ((ihp->hba_service_status == ISCSI_SERVICE_TRANSITION) || (ihp->hba_service_client_count == UINT_MAX)) { cv_wait(&ihp->hba_service_cv, &ihp->hba_service_lock); } if (ihp->hba_service_status == ISCSI_SERVICE_ENABLED) { ihp->hba_service_client_count++; } else { rval = B_FALSE; } mutex_exit(&ihp->hba_service_lock); return (rval); } /* * iscsi_client_release_service - decrease the count and wake up * blocking threads if the count reaches zero */ void iscsi_client_release_service(iscsi_hba_t *ihp) { mutex_enter(&ihp->hba_service_lock); ASSERT(ihp->hba_service_client_count > 0); ihp->hba_service_client_count--; if (ihp->hba_service_client_count == 0) { cv_broadcast(&ihp->hba_service_cv); } mutex_exit(&ihp->hba_service_lock); } /* * iscsi_enter_service_zone - enter the service zone, should be called * before doing any modifications to the service status * return TRUE if the zone is entered * FALSE if no need to enter the zone */ static boolean_t iscsi_enter_service_zone(iscsi_hba_t *ihp, uint32_t status) { if ((status != ISCSI_SERVICE_ENABLED) && (status != ISCSI_SERVICE_DISABLED)) { return (B_FALSE); } mutex_enter(&ihp->hba_service_lock); while (ihp->hba_service_status == ISCSI_SERVICE_TRANSITION) { cv_wait(&ihp->hba_service_cv, &ihp->hba_service_lock); } if (ihp->hba_service_status == status) { mutex_exit(&ihp->hba_service_lock); return (B_FALSE); } ihp->hba_service_status = ISCSI_SERVICE_TRANSITION; while (ihp->hba_service_client_count > 0) { cv_wait(&ihp->hba_service_cv, &ihp->hba_service_lock); } mutex_exit(&ihp->hba_service_lock); return (B_TRUE); } /* * iscsi_exit_service_zone - exits the service zone and wakes up waiters */ static void iscsi_exit_service_zone(iscsi_hba_t *ihp, uint32_t status) { if ((status != ISCSI_SERVICE_ENABLED) && (status != ISCSI_SERVICE_DISABLED)) { return; } mutex_enter(&ihp->hba_service_lock); ASSERT(ihp->hba_service_status == ISCSI_SERVICE_TRANSITION); ihp->hba_service_status = status; cv_broadcast(&ihp->hba_service_cv); mutex_exit(&ihp->hba_service_lock); } static void iscsi_check_miniroot(iscsi_hba_t *ihp) { if (strncmp(rootfs.bo_name, "/ramdisk", 8) == 0) { /* * in miniroot we don't have the persistent store * so just to need to ensure an enabled status */ ihp->hba_service_status = ISCSI_SERVICE_ENABLED; } } static void iscsi_get_tunable_default(iscsi_tunable_object_t *param) { int param_id = 0; param_id = 1 << (param->t_param - 1); param->t_set = B_FALSE; switch (param_id) { case ISCSI_TUNABLE_PARAM_RX_TIMEOUT_VALUE: param->t_value.v_integer = ISCSI_DEFAULT_RX_TIMEOUT_VALUE; break; case ISCSI_TUNABLE_PARAM_LOGIN_POLLING_DELAY: param->t_value.v_integer = ISCSI_DEFAULT_LOGIN_POLLING_DELAY; break; case ISCSI_TUNABLE_PARAM_CONN_LOGIN_MAX: param->t_value.v_integer = ISCSI_DEFAULT_CONN_DEFAULT_LOGIN_MAX; break; default: break; } } /* * iscsi_get_persisted_tunable_param * - a helper to ISCSI_TUNABLE_PARAM_GET * ioctl * return: * 0 persisted tunable parameter found * 1 persisted tunable parameter not found */ static int iscsi_get_persisted_tunable_param(uchar_t *name, iscsi_tunable_object_t *tpsg) { int rtn = 1; int param_id = 0; persistent_tunable_param_t *pparam; if ((name == NULL) || strlen((char *)name) == 0) { return (rtn); } tpsg->t_set = B_FALSE; pparam = (persistent_tunable_param_t *)kmem_zalloc(sizeof (*pparam), KM_SLEEP); if (persistent_get_tunable_param((char *)name, pparam) == B_TRUE) { if (pparam->p_bitmap & (1 << (tpsg->t_param - 1))) { tpsg->t_set = B_TRUE; param_id = 1 << (tpsg->t_param - 1); switch (param_id) { case ISCSI_TUNABLE_PARAM_RX_TIMEOUT_VALUE: tpsg->t_value.v_integer = pparam->p_params.recv_login_rsp_timeout; break; case ISCSI_TUNABLE_PARAM_LOGIN_POLLING_DELAY: tpsg->t_value.v_integer = pparam->p_params.polling_login_delay; break; case ISCSI_TUNABLE_PARAM_CONN_LOGIN_MAX: tpsg->t_value.v_integer = pparam->p_params.conn_login_max; break; default: break; } rtn = 0; } } kmem_free(pparam, sizeof (*pparam)); return (rtn); }