diff options
Diffstat (limited to 'drivers/target')
| -rw-r--r-- | drivers/target/iscsi/iscsi_target.c | 57 | ||||
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_auth.c | 122 | ||||
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_configfs.c | 113 | ||||
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_login.c | 17 | ||||
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_nego.c | 160 | ||||
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_nego.h | 3 | ||||
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_nodeattrib.c | 1 | ||||
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_tpg.c | 3 | ||||
| -rw-r--r-- | drivers/target/target_core_alua.c | 2 | ||||
| -rw-r--r-- | drivers/target/target_core_configfs.c | 27 | ||||
| -rw-r--r-- | drivers/target/target_core_device.c | 6 | ||||
| -rw-r--r-- | drivers/target/target_core_file.c | 37 | ||||
| -rw-r--r-- | drivers/target/target_core_iblock.c | 13 | ||||
| -rw-r--r-- | drivers/target/target_core_sbc.c | 99 |
14 files changed, 389 insertions, 271 deletions
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index e368f038ff5c..baf4da7bb3b4 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -1004,8 +1004,10 @@ int iscsit_setup_scsi_cmd(struct iscsit_conn *conn, struct iscsit_cmd *cmd, unsigned char *buf) { int data_direction, payload_length; + struct iscsi_ecdb_ahdr *ecdb_ahdr; struct iscsi_scsi_req *hdr; int iscsi_task_attr; + unsigned char *cdb; int sam_task_attr; atomic_long_inc(&conn->sess->cmd_pdus); @@ -1106,6 +1108,27 @@ int iscsit_setup_scsi_cmd(struct iscsit_conn *conn, struct iscsit_cmd *cmd, ISCSI_REASON_BOOKMARK_INVALID, buf); } + cdb = hdr->cdb; + + if (hdr->hlength) { + ecdb_ahdr = (struct iscsi_ecdb_ahdr *) (hdr + 1); + if (ecdb_ahdr->ahstype != ISCSI_AHSTYPE_CDB) { + pr_err("Additional Header Segment type %d not supported!\n", + ecdb_ahdr->ahstype); + return iscsit_add_reject_cmd(cmd, + ISCSI_REASON_CMD_NOT_SUPPORTED, buf); + } + + cdb = kmalloc(be16_to_cpu(ecdb_ahdr->ahslength) + 15, + GFP_KERNEL); + if (cdb == NULL) + return iscsit_add_reject_cmd(cmd, + ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf); + memcpy(cdb, hdr->cdb, ISCSI_CDB_SIZE); + memcpy(cdb + ISCSI_CDB_SIZE, ecdb_ahdr->ecdb, + be16_to_cpu(ecdb_ahdr->ahslength) - 1); + } + data_direction = (hdr->flags & ISCSI_FLAG_CMD_WRITE) ? DMA_TO_DEVICE : (hdr->flags & ISCSI_FLAG_CMD_READ) ? DMA_FROM_DEVICE : DMA_NONE; @@ -1153,9 +1176,12 @@ int iscsit_setup_scsi_cmd(struct iscsit_conn *conn, struct iscsit_cmd *cmd, struct iscsi_datain_req *dr; dr = iscsit_allocate_datain_req(); - if (!dr) + if (!dr) { + if (cdb != hdr->cdb) + kfree(cdb); return iscsit_add_reject_cmd(cmd, ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf); + } iscsit_attach_datain_req(cmd, dr); } @@ -1176,9 +1202,12 @@ int iscsit_setup_scsi_cmd(struct iscsit_conn *conn, struct iscsit_cmd *cmd, target_get_sess_cmd(&cmd->se_cmd, true); cmd->se_cmd.tag = (__force u32)cmd->init_task_tag; - cmd->sense_reason = target_cmd_init_cdb(&cmd->se_cmd, hdr->cdb, + cmd->sense_reason = target_cmd_init_cdb(&cmd->se_cmd, cdb, GFP_KERNEL); + if (cdb != hdr->cdb) + kfree(cdb); + if (cmd->sense_reason) { if (cmd->sense_reason == TCM_OUT_OF_RESOURCES) { return iscsit_add_reject_cmd(cmd, @@ -4036,8 +4065,9 @@ static bool iscsi_target_check_conn_state(struct iscsit_conn *conn) static void iscsit_get_rx_pdu(struct iscsit_conn *conn) { int ret; - u8 *buffer, opcode; + u8 *buffer, *tmp_buf, opcode; u32 checksum = 0, digest = 0; + struct iscsi_hdr *hdr; struct kvec iov; buffer = kcalloc(ISCSI_HDR_LEN, sizeof(*buffer), GFP_KERNEL); @@ -4062,6 +4092,25 @@ static void iscsit_get_rx_pdu(struct iscsit_conn *conn) break; } + hdr = (struct iscsi_hdr *) buffer; + if (hdr->hlength) { + iov.iov_len = hdr->hlength * 4; + tmp_buf = krealloc(buffer, + ISCSI_HDR_LEN + iov.iov_len, + GFP_KERNEL); + if (!tmp_buf) + break; + + buffer = tmp_buf; + iov.iov_base = &buffer[ISCSI_HDR_LEN]; + + ret = rx_data(conn, &iov, 1, iov.iov_len); + if (ret != iov.iov_len) { + iscsit_rx_thread_wait_for_tcp(conn); + break; + } + } + if (conn->conn_ops->HeaderDigest) { iov.iov_base = &digest; iov.iov_len = ISCSI_CRC_LEN; @@ -4361,7 +4410,7 @@ int iscsit_close_connection( spin_lock_bh(&sess->conn_lock); atomic_dec(&sess->nconn); - pr_debug("Decremented iSCSI connection count to %hu from node:" + pr_debug("Decremented iSCSI connection count to %d from node:" " %s\n", atomic_read(&sess->nconn), sess->sess_ops->InitiatorName); /* diff --git a/drivers/target/iscsi/iscsi_target_auth.c b/drivers/target/iscsi/iscsi_target_auth.c index 6e5611d8f51b..c8a248bd11be 100644 --- a/drivers/target/iscsi/iscsi_target_auth.c +++ b/drivers/target/iscsi/iscsi_target_auth.c @@ -205,6 +205,38 @@ static struct iscsi_chap *chap_server_open( return chap; } +static const char base64_lookup_table[] = + "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; + +static int chap_base64_decode(u8 *dst, const char *src, size_t len) +{ + int i, bits = 0, ac = 0; + const char *p; + u8 *cp = dst; + + for (i = 0; i < len; i++) { + if (src[i] == '=') + return cp - dst; + + p = strchr(base64_lookup_table, src[i]); + if (p == NULL || src[i] == 0) + return -2; + + ac <<= 6; + ac += (p - base64_lookup_table); + bits += 6; + if (bits >= 8) { + *cp++ = (ac >> (bits - 8)) & 0xff; + ac &= ~(BIT(16) - BIT(bits - 8)); + bits -= 8; + } + } + if (ac) + return -1; + + return cp - dst; +} + static int chap_server_compute_hash( struct iscsit_conn *conn, struct iscsi_node_auth *auth, @@ -295,16 +327,27 @@ static int chap_server_compute_hash( pr_err("Could not find CHAP_R.\n"); goto out; } - if (type != HEX) { - pr_err("Could not find CHAP_R.\n"); - goto out; - } - if (strlen(chap_r) != chap->digest_size * 2) { - pr_err("Malformed CHAP_R\n"); - goto out; - } - if (hex2bin(client_digest, chap_r, chap->digest_size) < 0) { - pr_err("Malformed CHAP_R\n"); + + switch (type) { + case HEX: + if (strlen(chap_r) != chap->digest_size * 2) { + pr_err("Malformed CHAP_R\n"); + goto out; + } + if (hex2bin(client_digest, chap_r, chap->digest_size) < 0) { + pr_err("Malformed CHAP_R: invalid HEX\n"); + goto out; + } + break; + case BASE64: + if (chap_base64_decode(client_digest, chap_r, strlen(chap_r)) != + chap->digest_size) { + pr_err("Malformed CHAP_R: invalid BASE64\n"); + goto out; + } + break; + default: + pr_err("Could not find CHAP_R\n"); goto out; } @@ -373,7 +416,13 @@ static int chap_server_compute_hash( /* * Get CHAP_I. */ - if (extract_param(nr_in_ptr, "CHAP_I", 10, identifier, &type) < 0) { + ret = extract_param(nr_in_ptr, "CHAP_I", 10, identifier, &type); + if (ret == -ENOENT) { + pr_debug("Could not find CHAP_I. Initiator uses One way authentication.\n"); + auth_ret = 0; + goto out; + } + if (ret < 0) { pr_err("Could not find CHAP_I.\n"); goto out; } @@ -404,23 +453,46 @@ static int chap_server_compute_hash( goto out; } - if (type != HEX) { + switch (type) { + case HEX: + initiatorchg_len = DIV_ROUND_UP(strlen(initiatorchg), 2); + if (!initiatorchg_len) { + pr_err("Unable to convert incoming challenge\n"); + goto out; + } + if (initiatorchg_len > 1024) { + pr_err("CHAP_C exceeds maximum binary size of 1024 bytes\n"); + goto out; + } + + if (hex2bin(initiatorchg_binhex, initiatorchg, + initiatorchg_len) < 0) { + pr_err("Malformed CHAP_C: invalid HEX\n"); + goto out; + } + break; + case BASE64: + initiatorchg_len = chap_base64_decode(initiatorchg_binhex, + initiatorchg, + strlen(initiatorchg)); + if (initiatorchg_len < 0) { + pr_err("Malformed CHAP_C: invalid BASE64\n"); + goto out; + } + if (!initiatorchg_len) { + pr_err("Unable to convert incoming challenge\n"); + goto out; + } + if (initiatorchg_len > 1024) { + pr_err("CHAP_C exceeds maximum binary size of 1024 bytes\n"); + goto out; + } + break; + default: pr_err("Could not find CHAP_C.\n"); goto out; } - initiatorchg_len = DIV_ROUND_UP(strlen(initiatorchg), 2); - if (!initiatorchg_len) { - pr_err("Unable to convert incoming challenge\n"); - goto out; - } - if (initiatorchg_len > 1024) { - pr_err("CHAP_C exceeds maximum binary size of 1024 bytes\n"); - goto out; - } - if (hex2bin(initiatorchg_binhex, initiatorchg, initiatorchg_len) < 0) { - pr_err("Malformed CHAP_C\n"); - goto out; - } + pr_debug("[server] Got CHAP_C=%s\n", initiatorchg); /* * During mutual authentication, the CHAP_C generated by the diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c index ce14540ba650..5d0f51822414 100644 --- a/drivers/target/iscsi/iscsi_target_configfs.c +++ b/drivers/target/iscsi/iscsi_target_configfs.c @@ -210,7 +210,7 @@ static struct se_tpg_np *lio_target_call_addnptotpg( return ERR_PTR(ret); } - tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); + tpg = to_iscsi_tpg(se_tpg); ret = iscsit_get_tpg(tpg); if (ret < 0) return ERR_PTR(-EINVAL); @@ -281,9 +281,7 @@ static ssize_t iscsi_nacl_attrib_##name##_show(struct config_item *item,\ char *page) \ { \ struct se_node_acl *se_nacl = attrib_to_nacl(item); \ - struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ - se_node_acl); \ - \ + struct iscsi_node_acl *nacl = to_iscsi_nacl(se_nacl); \ return sprintf(page, "%u\n", nacl->node_attrib.name); \ } \ \ @@ -291,8 +289,7 @@ static ssize_t iscsi_nacl_attrib_##name##_store(struct config_item *item,\ const char *page, size_t count) \ { \ struct se_node_acl *se_nacl = attrib_to_nacl(item); \ - struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ - se_node_acl); \ + struct iscsi_node_acl *nacl = to_iscsi_nacl(se_nacl); \ u32 val; \ int ret; \ \ @@ -317,6 +314,36 @@ ISCSI_NACL_ATTR(random_datain_pdu_offsets); ISCSI_NACL_ATTR(random_datain_seq_offsets); ISCSI_NACL_ATTR(random_r2t_offsets); +static ssize_t iscsi_nacl_attrib_authentication_show(struct config_item *item, + char *page) +{ + struct se_node_acl *se_nacl = attrib_to_nacl(item); + struct iscsi_node_acl *nacl = to_iscsi_nacl(se_nacl); + + return sprintf(page, "%d\n", nacl->node_attrib.authentication); +} + +static ssize_t iscsi_nacl_attrib_authentication_store(struct config_item *item, + const char *page, size_t count) +{ + struct se_node_acl *se_nacl = attrib_to_nacl(item); + struct iscsi_node_acl *nacl = to_iscsi_nacl(se_nacl); + s32 val; + int ret; + + ret = kstrtos32(page, 0, &val); + if (ret) + return ret; + if (val != 0 && val != 1 && val != NA_AUTHENTICATION_INHERITED) + return -EINVAL; + + nacl->node_attrib.authentication = val; + + return count; +} + +CONFIGFS_ATTR(iscsi_nacl_attrib_, authentication); + static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = { &iscsi_nacl_attrib_attr_dataout_timeout, &iscsi_nacl_attrib_attr_dataout_timeout_retries, @@ -326,6 +353,7 @@ static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = { &iscsi_nacl_attrib_attr_random_datain_pdu_offsets, &iscsi_nacl_attrib_attr_random_datain_seq_offsets, &iscsi_nacl_attrib_attr_random_r2t_offsets, + &iscsi_nacl_attrib_attr_authentication, NULL, }; @@ -377,15 +405,14 @@ static ssize_t iscsi_nacl_auth_##name##_show(struct config_item *item, \ char *page) \ { \ struct se_node_acl *nacl = auth_to_nacl(item); \ - return __iscsi_nacl_auth_##name##_show(container_of(nacl, \ - struct iscsi_node_acl, se_node_acl), page); \ + return __iscsi_nacl_auth_##name##_show(to_iscsi_nacl(nacl), page); \ } \ static ssize_t iscsi_nacl_auth_##name##_store(struct config_item *item, \ const char *page, size_t count) \ { \ struct se_node_acl *nacl = auth_to_nacl(item); \ - return __iscsi_nacl_auth_##name##_store(container_of(nacl, \ - struct iscsi_node_acl, se_node_acl), page, count); \ + return __iscsi_nacl_auth_##name##_store(to_iscsi_nacl(nacl), \ + page, count); \ } \ \ CONFIGFS_ATTR(iscsi_nacl_auth_, name) @@ -417,8 +444,7 @@ static ssize_t iscsi_nacl_auth_##name##_show(struct config_item *item, \ char *page) \ { \ struct se_node_acl *nacl = auth_to_nacl(item); \ - return __iscsi_nacl_auth_##name##_show(container_of(nacl, \ - struct iscsi_node_acl, se_node_acl), page); \ + return __iscsi_nacl_auth_##name##_show(to_iscsi_nacl(nacl), page); \ } \ \ CONFIGFS_ATTR_RO(iscsi_nacl_auth_, name) @@ -623,8 +649,7 @@ static ssize_t lio_target_nacl_cmdsn_depth_store(struct config_item *item, { struct se_node_acl *se_nacl = acl_to_nacl(item); struct se_portal_group *se_tpg = se_nacl->se_tpg; - struct iscsi_portal_group *tpg = container_of(se_tpg, - struct iscsi_portal_group, tpg_se_tpg); + struct iscsi_portal_group *tpg = to_iscsi_tpg(se_tpg); struct config_item *acl_ci, *tpg_ci, *wwn_ci; u32 cmdsn_depth = 0; int ret; @@ -700,8 +725,7 @@ static struct configfs_attribute *lio_target_initiator_attrs[] = { static int lio_target_init_nodeacl(struct se_node_acl *se_nacl, const char *name) { - struct iscsi_node_acl *acl = - container_of(se_nacl, struct iscsi_node_acl, se_node_acl); + struct iscsi_node_acl *acl = to_iscsi_nacl(se_nacl); config_group_init_type_name(&acl->node_stat_grps.iscsi_sess_stats_group, "iscsi_sess_stats", &iscsi_stat_sess_cit); @@ -720,8 +744,7 @@ static ssize_t iscsi_tpg_attrib_##name##_show(struct config_item *item, \ char *page) \ { \ struct se_portal_group *se_tpg = attrib_to_tpg(item); \ - struct iscsi_portal_group *tpg = container_of(se_tpg, \ - struct iscsi_portal_group, tpg_se_tpg); \ + struct iscsi_portal_group *tpg = to_iscsi_tpg(se_tpg); \ ssize_t rb; \ \ if (iscsit_get_tpg(tpg) < 0) \ @@ -736,8 +759,7 @@ static ssize_t iscsi_tpg_attrib_##name##_store(struct config_item *item,\ const char *page, size_t count) \ { \ struct se_portal_group *se_tpg = attrib_to_tpg(item); \ - struct iscsi_portal_group *tpg = container_of(se_tpg, \ - struct iscsi_portal_group, tpg_se_tpg); \ + struct iscsi_portal_group *tpg = to_iscsi_tpg(se_tpg); \ u32 val; \ int ret; \ \ @@ -800,8 +822,7 @@ static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = { static ssize_t __iscsi_##prefix##_##name##_show(struct se_portal_group *se_tpg, \ char *page) \ { \ - struct iscsi_portal_group *tpg = container_of(se_tpg, \ - struct iscsi_portal_group, tpg_se_tpg); \ + struct iscsi_portal_group *tpg = to_iscsi_tpg(se_tpg); \ struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \ \ if (!capable(CAP_SYS_ADMIN)) \ @@ -813,8 +834,7 @@ static ssize_t __iscsi_##prefix##_##name##_show(struct se_portal_group *se_tpg, static ssize_t __iscsi_##prefix##_##name##_store(struct se_portal_group *se_tpg,\ const char *page, size_t count) \ { \ - struct iscsi_portal_group *tpg = container_of(se_tpg, \ - struct iscsi_portal_group, tpg_se_tpg); \ + struct iscsi_portal_group *tpg = to_iscsi_tpg(se_tpg); \ struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \ \ if (!capable(CAP_SYS_ADMIN)) \ @@ -861,8 +881,7 @@ DEF_TPG_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); static ssize_t __iscsi_##prefix##_##name##_show(struct se_portal_group *se_tpg, \ char *page) \ { \ - struct iscsi_portal_group *tpg = container_of(se_tpg, \ - struct iscsi_portal_group, tpg_se_tpg); \ + struct iscsi_portal_group *tpg = to_iscsi_tpg(se_tpg); \ struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \ \ if (!capable(CAP_SYS_ADMIN)) \ @@ -900,8 +919,7 @@ static ssize_t iscsi_tpg_param_##name##_show(struct config_item *item, \ char *page) \ { \ struct se_portal_group *se_tpg = param_to_tpg(item); \ - struct iscsi_portal_group *tpg = container_of(se_tpg, \ - struct iscsi_portal_group, tpg_se_tpg); \ + struct iscsi_portal_group *tpg = to_iscsi_tpg(se_tpg); \ struct iscsi_param *param; \ ssize_t rb; \ \ @@ -923,8 +941,7 @@ static ssize_t iscsi_tpg_param_##name##_store(struct config_item *item, \ const char *page, size_t count) \ { \ struct se_portal_group *se_tpg = param_to_tpg(item); \ - struct iscsi_portal_group *tpg = container_of(se_tpg, \ - struct iscsi_portal_group, tpg_se_tpg); \ + struct iscsi_portal_group *tpg = to_iscsi_tpg(se_tpg); \ char *buf; \ int ret, len; \ \ @@ -1073,8 +1090,7 @@ free_out: static int lio_target_tiqn_enabletpg(struct se_portal_group *se_tpg, bool enable) { - struct iscsi_portal_group *tpg = container_of(se_tpg, - struct iscsi_portal_group, tpg_se_tpg); + struct iscsi_portal_group *tpg = to_iscsi_tpg(se_tpg); int ret; ret = iscsit_get_tpg(tpg); @@ -1106,7 +1122,7 @@ static void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg) struct iscsi_portal_group *tpg; struct iscsi_tiqn *tiqn; - tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); + tpg = to_iscsi_tpg(se_tpg); tiqn = tpg->tpg_tiqn; /* * iscsit_tpg_del_portal_group() assumes force=1 @@ -1416,46 +1432,41 @@ static void lio_aborted_task(struct se_cmd *se_cmd) cmd->conn->conn_transport->iscsit_aborted_task(cmd->conn, cmd); } -static inline struct iscsi_portal_group *iscsi_tpg(struct se_portal_group *se_tpg) -{ - return container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); -} - static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg) { - return iscsi_tpg(se_tpg)->tpg_tiqn->tiqn; + return to_iscsi_tpg(se_tpg)->tpg_tiqn->tiqn; } static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg) { - return iscsi_tpg(se_tpg)->tpgt; + return to_iscsi_tpg(se_tpg)->tpgt; } static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg) { - return iscsi_tpg(se_tpg)->tpg_attrib.default_cmdsn_depth; + return to_iscsi_tpg(se_tpg)->tpg_attrib.default_cmdsn_depth; } static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg) { - return iscsi_tpg(se_tpg)->tpg_attrib.generate_node_acls; + return to_iscsi_tpg(se_tpg)->tpg_attrib.generate_node_acls; } static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg) { - return iscsi_tpg(se_tpg)->tpg_attrib.cache_dynamic_acls; + return to_iscsi_tpg(se_tpg)->tpg_attrib.cache_dynamic_acls; } static int lio_tpg_check_demo_mode_write_protect( struct se_portal_group *se_tpg) { - return iscsi_tpg(se_tpg)->tpg_attrib.demo_mode_write_protect; + return to_iscsi_tpg(se_tpg)->tpg_attrib.demo_mode_write_protect; } static int lio_tpg_check_prod_mode_write_protect( struct se_portal_group *se_tpg) { - return iscsi_tpg(se_tpg)->tpg_attrib.prod_mode_write_protect; + return to_iscsi_tpg(se_tpg)->tpg_attrib.prod_mode_write_protect; } static int lio_tpg_check_prot_fabric_only( @@ -1465,9 +1476,9 @@ static int lio_tpg_check_prot_fabric_only( * Only report fabric_prot_type if t10_pi has also been enabled * for incoming ib_isert sessions. */ - if (!iscsi_tpg(se_tpg)->tpg_attrib.t10_pi) + if (!to_iscsi_tpg(se_tpg)->tpg_attrib.t10_pi) return 0; - return iscsi_tpg(se_tpg)->tpg_attrib.fabric_prot_type; + return to_iscsi_tpg(se_tpg)->tpg_attrib.fabric_prot_type; } /* @@ -1504,16 +1515,14 @@ static void lio_tpg_close_session(struct se_session *se_sess) static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg) { - return iscsi_tpg(se_tpg)->tpg_tiqn->tiqn_index; + return to_iscsi_tpg(se_tpg)->tpg_tiqn->tiqn_index; } static void lio_set_default_node_attributes(struct se_node_acl *se_acl) { - struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl, - se_node_acl); + struct iscsi_node_acl *acl = to_iscsi_nacl(se_acl); struct se_portal_group *se_tpg = se_acl->se_tpg; - struct iscsi_portal_group *tpg = container_of(se_tpg, - struct iscsi_portal_group, tpg_se_tpg); + struct iscsi_portal_group *tpg = to_iscsi_tpg(se_tpg); acl->node_attrib.nacl = acl; iscsit_set_default_node_attribues(acl, tpg); diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c index 6b94eecc4790..27e448c2d066 100644 --- a/drivers/target/iscsi/iscsi_target_login.c +++ b/drivers/target/iscsi/iscsi_target_login.c @@ -341,6 +341,7 @@ static int iscsi_login_zero_tsih_s2( { struct iscsi_node_attrib *na; struct iscsit_session *sess = conn->sess; + struct iscsi_param *param; bool iser = false; sess->tpg = conn->tpg; @@ -375,6 +376,18 @@ static int iscsi_login_zero_tsih_s2( na = iscsit_tpg_get_node_attrib(sess); /* + * If ACL allows non-authorized access in TPG with CHAP, + * then set None to AuthMethod. + */ + param = iscsi_find_param_from_key(AUTHMETHOD, conn->param_list); + if (param && !strstr(param->value, NONE)) { + if (!iscsi_conn_auth_required(conn)) + if (iscsi_change_param_sprintf(conn, "AuthMethod=%s", + NONE)) + return -1; + } + + /* * Need to send TargetPortalGroupTag back in first login response * on any iSCSI connection where the Initiator provides TargetName. * See 5.3.1. Login Phase Start @@ -715,7 +728,7 @@ void iscsi_post_login_handler( list_add_tail(&conn->conn_list, &sess->sess_conn_list); atomic_inc(&sess->nconn); - pr_debug("Incremented iSCSI Connection count to %hu" + pr_debug("Incremented iSCSI Connection count to %d" " from node: %s\n", atomic_read(&sess->nconn), sess->sess_ops->InitiatorName); spin_unlock_bh(&sess->conn_lock); @@ -763,7 +776,7 @@ void iscsi_post_login_handler( spin_lock_bh(&sess->conn_lock); list_add_tail(&conn->conn_list, &sess->sess_conn_list); atomic_inc(&sess->nconn); - pr_debug("Incremented iSCSI Connection count to %hu from node:" + pr_debug("Incremented iSCSI Connection count to %d from node:" " %s\n", atomic_read(&sess->nconn), sess->sess_ops->InitiatorName); spin_unlock_bh(&sess->conn_lock); diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c index b34ac9ecac31..f2919319ad38 100644 --- a/drivers/target/iscsi/iscsi_target_nego.c +++ b/drivers/target/iscsi/iscsi_target_nego.c @@ -62,31 +62,34 @@ int extract_param( int len; if (!in_buf || !pattern || !out_buf || !type) - return -1; + return -EINVAL; ptr = strstr(in_buf, pattern); if (!ptr) - return -1; + return -ENOENT; ptr = strstr(ptr, "="); if (!ptr) - return -1; + return -EINVAL; ptr += 1; if (*ptr == '0' && (*(ptr+1) == 'x' || *(ptr+1) == 'X')) { ptr += 2; /* skip 0x */ *type = HEX; + } else if (*ptr == '0' && (*(ptr+1) == 'b' || *(ptr+1) == 'B')) { + ptr += 2; /* skip 0b */ + *type = BASE64; } else *type = DECIMAL; len = strlen_semi(ptr); if (len < 0) - return -1; + return -EINVAL; if (len >= max_length) { pr_err("Length of input: %d exceeds max_length:" " %d\n", len, max_length); - return -1; + return -EINVAL; } memcpy(out_buf, ptr, len); out_buf[len] = '\0'; @@ -94,6 +97,31 @@ int extract_param( return 0; } +static struct iscsi_node_auth *iscsi_get_node_auth(struct iscsit_conn *conn) +{ + struct iscsi_portal_group *tpg; + struct iscsi_node_acl *nacl; + struct se_node_acl *se_nacl; + + if (conn->sess->sess_ops->SessionType) + return &iscsit_global->discovery_acl.node_auth; + + se_nacl = conn->sess->se_sess->se_node_acl; + if (!se_nacl) { + pr_err("Unable to locate struct se_node_acl for CHAP auth\n"); + return NULL; + } + + if (se_nacl->dynamic_node_acl) { + tpg = to_iscsi_tpg(se_nacl->se_tpg); + return &tpg->tpg_demo_auth; + } + + nacl = to_iscsi_nacl(se_nacl); + + return &nacl->node_auth; +} + static u32 iscsi_handle_authentication( struct iscsit_conn *conn, char *in_buf, @@ -102,40 +130,11 @@ static u32 iscsi_handle_authentication( int *out_length, unsigned char *authtype) { - struct iscsit_session *sess = conn->sess; struct iscsi_node_auth *auth; - struct iscsi_node_acl *iscsi_nacl; - struct iscsi_portal_group *iscsi_tpg; - struct se_node_acl *se_nacl; - - if (!sess->sess_ops->SessionType) { - /* - * For SessionType=Normal - */ - se_nacl = conn->sess->se_sess->se_node_acl; - if (!se_nacl) { - pr_err("Unable to locate struct se_node_acl for" - " CHAP auth\n"); - return -1; - } - - if (se_nacl->dynamic_node_acl) { - iscsi_tpg = container_of(se_nacl->se_tpg, - struct iscsi_portal_group, tpg_se_tpg); - - auth = &iscsi_tpg->tpg_demo_auth; - } else { - iscsi_nacl = container_of(se_nacl, struct iscsi_node_acl, - se_node_acl); - auth = &iscsi_nacl->node_auth; - } - } else { - /* - * For SessionType=Discovery - */ - auth = &iscsit_global->discovery_acl.node_auth; - } + auth = iscsi_get_node_auth(conn); + if (!auth) + return -1; if (strstr("CHAP", authtype)) strcpy(conn->sess->auth_type, "CHAP"); @@ -815,6 +814,42 @@ static int iscsi_target_do_authentication( return 0; } +bool iscsi_conn_auth_required(struct iscsit_conn *conn) +{ + struct iscsi_node_acl *nacl; + struct se_node_acl *se_nacl; + + if (conn->sess->sess_ops->SessionType) { + /* + * For SessionType=Discovery + */ + return conn->tpg->tpg_attrib.authentication; + } + /* + * For SessionType=Normal + */ + se_nacl = conn->sess->se_sess->se_node_acl; + if (!se_nacl) { + pr_debug("Unknown ACL is trying to connect\n"); + return true; + } + + if (se_nacl->dynamic_node_acl) { + pr_debug("Dynamic ACL %s is trying to connect\n", + se_nacl->initiatorname); + return conn->tpg->tpg_attrib.authentication; + } + + pr_debug("Known ACL %s is trying to connect\n", + se_nacl->initiatorname); + + nacl = to_iscsi_nacl(se_nacl); + if (nacl->node_attrib.authentication == NA_AUTHENTICATION_INHERITED) + return conn->tpg->tpg_attrib.authentication; + + return nacl->node_attrib.authentication; +} + static int iscsi_target_handle_csg_zero( struct iscsit_conn *conn, struct iscsi_login *login) @@ -876,22 +911,26 @@ static int iscsi_target_handle_csg_zero( return -1; if (!iscsi_check_negotiated_keys(conn->param_list)) { - if (conn->tpg->tpg_attrib.authentication && - !strncmp(param->value, NONE, 4)) { - pr_err("Initiator sent AuthMethod=None but" - " Target is enforcing iSCSI Authentication," - " login failed.\n"); - iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_INITIATOR_ERR, - ISCSI_LOGIN_STATUS_AUTH_FAILED); - return -1; - } + bool auth_required = iscsi_conn_auth_required(conn); + + if (auth_required) { + if (!strncmp(param->value, NONE, 4)) { + pr_err("Initiator sent AuthMethod=None but" + " Target is enforcing iSCSI Authentication," + " login failed.\n"); + iscsit_tx_login_rsp(conn, + ISCSI_STATUS_CLS_INITIATOR_ERR, + ISCSI_LOGIN_STATUS_AUTH_FAILED); + return -1; + } - if (conn->tpg->tpg_attrib.authentication && - !login->auth_complete) - return 0; + if (!login->auth_complete) + return 0; - if (strncmp(param->value, NONE, 4) && !login->auth_complete) - return 0; + if (strncmp(param->value, NONE, 4) && + !login->auth_complete) + return 0; + } if ((login_req->flags & ISCSI_FLAG_LOGIN_NEXT_STAGE1) && (login_req->flags & ISCSI_FLAG_LOGIN_TRANSIT)) { @@ -906,6 +945,18 @@ do_auth: return iscsi_target_do_authentication(conn, login); } +static bool iscsi_conn_authenticated(struct iscsit_conn *conn, + struct iscsi_login *login) +{ + if (!iscsi_conn_auth_required(conn)) + return true; + + if (login->auth_complete) + return true; + + return false; +} + static int iscsi_target_handle_csg_one(struct iscsit_conn *conn, struct iscsi_login *login) { int ret; @@ -949,11 +1000,10 @@ static int iscsi_target_handle_csg_one(struct iscsit_conn *conn, struct iscsi_lo return -1; } - if (!login->auth_complete && - conn->tpg->tpg_attrib.authentication) { + if (!iscsi_conn_authenticated(conn, login)) { pr_err("Initiator is requesting CSG: 1, has not been" - " successfully authenticated, and the Target is" - " enforcing iSCSI Authentication, login failed.\n"); + " successfully authenticated, and the Target is" + " enforcing iSCSI Authentication, login failed.\n"); iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_INITIATOR_ERR, ISCSI_LOGIN_STATUS_AUTH_FAILED); return -1; diff --git a/drivers/target/iscsi/iscsi_target_nego.h b/drivers/target/iscsi/iscsi_target_nego.h index ed30b9ee75e6..41c3db3ddeaa 100644 --- a/drivers/target/iscsi/iscsi_target_nego.h +++ b/drivers/target/iscsi/iscsi_target_nego.h @@ -4,6 +4,7 @@ #define DECIMAL 0 #define HEX 1 +#define BASE64 2 struct iscsit_conn; struct iscsi_login; @@ -21,5 +22,5 @@ extern int iscsi_target_locate_portal(struct iscsi_np *, struct iscsit_conn *, extern int iscsi_target_start_negotiation( struct iscsi_login *, struct iscsit_conn *); extern void iscsi_target_nego_release(struct iscsit_conn *); - +extern bool iscsi_conn_auth_required(struct iscsit_conn *conn); #endif /* ISCSI_TARGET_NEGO_H */ diff --git a/drivers/target/iscsi/iscsi_target_nodeattrib.c b/drivers/target/iscsi/iscsi_target_nodeattrib.c index 874cb33c9be0..d63efdefb18e 100644 --- a/drivers/target/iscsi/iscsi_target_nodeattrib.c +++ b/drivers/target/iscsi/iscsi_target_nodeattrib.c @@ -30,6 +30,7 @@ void iscsit_set_default_node_attribues( { struct iscsi_node_attrib *a = &acl->node_attrib; + a->authentication = NA_AUTHENTICATION_INHERITED; a->dataout_timeout = NA_DATAOUT_TIMEOUT; a->dataout_timeout_retries = NA_DATAOUT_TIMEOUT_RETRIES; a->nopin_timeout = NA_NOPIN_TIMEOUT; diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c index 4339ee517434..3cac1aafef68 100644 --- a/drivers/target/iscsi/iscsi_target_tpg.c +++ b/drivers/target/iscsi/iscsi_target_tpg.c @@ -394,8 +394,7 @@ struct iscsi_node_attrib *iscsit_tpg_get_node_attrib( { struct se_session *se_sess = sess->se_sess; struct se_node_acl *se_nacl = se_sess->se_node_acl; - struct iscsi_node_acl *acl = container_of(se_nacl, struct iscsi_node_acl, - se_node_acl); + struct iscsi_node_acl *acl = to_iscsi_nacl(se_nacl); return &acl->node_attrib; } diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c index b56ef8af66e7..58df0145e8d0 100644 --- a/drivers/target/target_core_alua.c +++ b/drivers/target/target_core_alua.c @@ -385,7 +385,7 @@ target_emulate_set_target_port_groups(struct se_cmd *cmd) /* * Extract the RELATIVE TARGET PORT IDENTIFIER to identify - * the Target Port in question for the the incoming + * the Target Port in question for the incoming * SET_TARGET_PORT_GROUPS op. */ rtpi = get_unaligned_be16(ptr + 2); diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index bbcbbfa72b07..416514c5c7ac 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -732,6 +732,7 @@ static ssize_t emulate_tpu_store(struct config_item *item, const char *page, size_t count) { struct se_dev_attrib *da = to_attrib(item); + struct se_device *dev = da->da_dev; bool flag; int ret; @@ -744,8 +745,11 @@ static ssize_t emulate_tpu_store(struct config_item *item, * Discard supported is detected iblock_create_virtdevice(). */ if (flag && !da->max_unmap_block_desc_count) { - pr_err("Generic Block Discard not supported\n"); - return -ENOSYS; + if (!dev->transport->configure_unmap || + !dev->transport->configure_unmap(dev)) { + pr_err("Generic Block Discard not supported\n"); + return -ENOSYS; + } } da->emulate_tpu = flag; @@ -758,6 +762,7 @@ static ssize_t emulate_tpws_store(struct config_item *item, const char *page, size_t count) { struct se_dev_attrib *da = to_attrib(item); + struct se_device *dev = da->da_dev; bool flag; int ret; @@ -770,8 +775,11 @@ static ssize_t emulate_tpws_store(struct config_item *item, * Discard supported is detected iblock_create_virtdevice(). */ if (flag && !da->max_unmap_block_desc_count) { - pr_err("Generic Block Discard not supported\n"); - return -ENOSYS; + if (!dev->transport->configure_unmap || + !dev->transport->configure_unmap(dev)) { + pr_err("Generic Block Discard not supported\n"); + return -ENOSYS; + } } da->emulate_tpws = flag; @@ -964,6 +972,7 @@ static ssize_t unmap_zeroes_data_store(struct config_item *item, const char *page, size_t count) { struct se_dev_attrib *da = to_attrib(item); + struct se_device *dev = da->da_dev; bool flag; int ret; @@ -982,10 +991,12 @@ static ssize_t unmap_zeroes_data_store(struct config_item *item, * Discard supported is detected iblock_configure_device(). */ if (flag && !da->max_unmap_block_desc_count) { - pr_err("dev[%p]: Thin Provisioning LBPRZ will not be set" - " because max_unmap_block_desc_count is zero\n", - da->da_dev); - return -ENOSYS; + if (!dev->transport->configure_unmap || + !dev->transport->configure_unmap(dev)) { + pr_err("dev[%p]: Thin Provisioning LBPRZ will not be set because max_unmap_block_desc_count is zero\n", + da->da_dev); + return -ENOSYS; + } } da->unmap_zeroes_data = flag; pr_debug("dev[%p]: SE Device Thin Provisioning LBPRZ bit: %d\n", diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index 25f33eb25337..086ac9c9343c 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -960,6 +960,12 @@ int target_configure_device(struct se_device *dev) ret = dev->transport->configure_device(dev); if (ret) goto out_free_index; + + if (dev->transport->configure_unmap && + dev->transport->configure_unmap(dev)) { + pr_debug("Discard support available, but disabled by default.\n"); + } + /* * XXX: there is not much point to have two different values here.. */ diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c index 6c8d8b051bfd..28aa643be5d5 100644 --- a/drivers/target/target_core_file.c +++ b/drivers/target/target_core_file.c @@ -86,6 +86,24 @@ static struct se_device *fd_alloc_device(struct se_hba *hba, const char *name) return &fd_dev->dev; } +static bool fd_configure_unmap(struct se_device *dev) +{ + struct file *file = FD_DEV(dev)->fd_file; + struct inode *inode = file->f_mapping->host; + + if (S_ISBLK(inode->i_mode)) + return target_configure_unmap_from_queue(&dev->dev_attrib, + I_BDEV(inode)); + + /* Limit UNMAP emulation to 8k Number of LBAs (NoLB) */ + dev->dev_attrib.max_unmap_lba_count = 0x2000; + /* Currently hardcoded to 1 in Linux/SCSI code. */ + dev->dev_attrib.max_unmap_block_desc_count = 1; + dev->dev_attrib.unmap_granularity = 1; + dev->dev_attrib.unmap_granularity_alignment = 0; + return true; +} + static int fd_configure_device(struct se_device *dev) { struct fd_dev *fd_dev = FD_DEV(dev); @@ -149,10 +167,6 @@ static int fd_configure_device(struct se_device *dev) " block_device blocks: %llu logical_block_size: %d\n", dev_size, div_u64(dev_size, fd_dev->fd_block_size), fd_dev->fd_block_size); - - if (target_configure_unmap_from_queue(&dev->dev_attrib, bdev)) - pr_debug("IFILE: BLOCK Discard support available," - " disabled by default\n"); /* * Enable write same emulation for IBLOCK and use 0xFFFF as * the smaller WRITE_SAME(10) only has a two-byte block count. @@ -170,16 +184,6 @@ static int fd_configure_device(struct se_device *dev) } fd_dev->fd_block_size = FD_BLOCKSIZE; - /* - * Limit UNMAP emulation to 8k Number of LBAs (NoLB) - */ - dev->dev_attrib.max_unmap_lba_count = 0x2000; - /* - * Currently hardcoded to 1 in Linux/SCSI code.. - */ - dev->dev_attrib.max_unmap_block_desc_count = 1; - dev->dev_attrib.unmap_granularity = 1; - dev->dev_attrib.unmap_granularity_alignment = 0; /* * Limit WRITE_SAME w/ UNMAP=0 emulation to 8k Number of LBAs (NoLB) @@ -438,10 +442,6 @@ fd_execute_write_same(struct se_cmd *cmd) unsigned int len = 0, i; ssize_t ret; - if (!nolb) { - target_complete_cmd(cmd, SAM_STAT_GOOD); - return 0; - } if (cmd->prot_op) { pr_err("WRITE_SAME: Protection information with FILEIO" " backends not supported\n"); @@ -927,6 +927,7 @@ static const struct target_backend_ops fileio_ops = { .configure_device = fd_configure_device, .destroy_device = fd_destroy_device, .free_device = fd_free_device, + .configure_unmap = fd_configure_unmap, .parse_cdb = fd_parse_cdb, .set_configfs_dev_params = fd_set_configfs_dev_params, .show_configfs_dev_params = fd_show_configfs_dev_params, diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c index 30712a12b151..8351c974cee3 100644 --- a/drivers/target/target_core_iblock.c +++ b/drivers/target/target_core_iblock.c @@ -76,6 +76,14 @@ free_dev: return NULL; } +static bool iblock_configure_unmap(struct se_device *dev) +{ + struct iblock_dev *ib_dev = IBLOCK_DEV(dev); + + return target_configure_unmap_from_queue(&dev->dev_attrib, + ib_dev->ibd_bd); +} + static int iblock_configure_device(struct se_device *dev) { struct iblock_dev *ib_dev = IBLOCK_DEV(dev); @@ -119,10 +127,6 @@ static int iblock_configure_device(struct se_device *dev) dev->dev_attrib.hw_max_sectors = queue_max_hw_sectors(q); dev->dev_attrib.hw_queue_depth = q->nr_requests; - if (target_configure_unmap_from_queue(&dev->dev_attrib, bd)) - pr_debug("IBLOCK: BLOCK Discard support available," - " disabled by default\n"); - /* * Enable write same emulation for IBLOCK and use 0xFFFF as * the smaller WRITE_SAME(10) only has a two-byte block count. @@ -903,6 +907,7 @@ static const struct target_backend_ops iblock_ops = { .configure_device = iblock_configure_device, .destroy_device = iblock_destroy_device, .free_device = iblock_free_device, + .configure_unmap = iblock_configure_unmap, .plug_device = iblock_plug_device, .unplug_device = iblock_unplug_device, .parse_cdb = iblock_parse_cdb, diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c index f6132836eb38..1e3216de1e04 100644 --- a/drivers/target/target_core_sbc.c +++ b/drivers/target/target_core_sbc.c @@ -345,68 +345,6 @@ sbc_setup_write_same(struct se_cmd *cmd, unsigned char flags, struct sbc_ops *op return 0; } -static sense_reason_t xdreadwrite_callback(struct se_cmd *cmd, bool success, - int *post_ret) -{ - unsigned char *buf, *addr; - struct scatterlist *sg; - unsigned int offset; - sense_reason_t ret = TCM_NO_SENSE; - int i, count; - - if (!success) - return 0; - - /* - * From sbc3r22.pdf section 5.48 XDWRITEREAD (10) command - * - * 1) read the specified logical block(s); - * 2) transfer logical blocks from the data-out buffer; - * 3) XOR the logical blocks transferred from the data-out buffer with - * the logical blocks read, storing the resulting XOR data in a buffer; - * 4) if the DISABLE WRITE bit is set to zero, then write the logical - * blocks transferred from the data-out buffer; and - * 5) transfer the resulting XOR data to the data-in buffer. - */ - buf = kmalloc(cmd->data_length, GFP_KERNEL); - if (!buf) { - pr_err("Unable to allocate xor_callback buf\n"); - return TCM_OUT_OF_RESOURCES; - } - /* - * Copy the scatterlist WRITE buffer located at cmd->t_data_sg - * into the locally allocated *buf - */ - sg_copy_to_buffer(cmd->t_data_sg, - cmd->t_data_nents, - buf, - cmd->data_length); - - /* - * Now perform the XOR against the BIDI read memory located at - * cmd->t_mem_bidi_list - */ - - offset = 0; - for_each_sg(cmd->t_bidi_data_sg, sg, cmd->t_bidi_data_nents, count) { - addr = kmap_atomic(sg_page(sg)); - if (!addr) { - ret = TCM_OUT_OF_RESOURCES; - goto out; - } - - for (i = 0; i < sg->length; i++) - *(addr + sg->offset + i) ^= *(buf + offset + i); - - offset += sg->length; - kunmap_atomic(addr); - } - -out: - kfree(buf); - return ret; -} - static sense_reason_t sbc_execute_rw(struct se_cmd *cmd) { @@ -933,47 +871,10 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB; cmd->execute_cmd = sbc_execute_rw; break; - case XDWRITEREAD_10: - if (cmd->data_direction != DMA_TO_DEVICE || - !(cmd->se_cmd_flags & SCF_BIDI)) - return TCM_INVALID_CDB_FIELD; - sectors = transport_get_sectors_10(cdb); - - if (sbc_check_dpofua(dev, cmd, cdb)) - return TCM_INVALID_CDB_FIELD; - - cmd->t_task_lba = transport_lba_32(cdb); - cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB; - - /* - * Setup BIDI XOR callback to be run after I/O completion. - */ - cmd->execute_cmd = sbc_execute_rw; - cmd->transport_complete_callback = &xdreadwrite_callback; - break; case VARIABLE_LENGTH_CMD: { u16 service_action = get_unaligned_be16(&cdb[8]); switch (service_action) { - case XDWRITEREAD_32: - sectors = transport_get_sectors_32(cdb); - - if (sbc_check_dpofua(dev, cmd, cdb)) - return TCM_INVALID_CDB_FIELD; - /* - * Use WRITE_32 and READ_32 opcodes for the emulated - * XDWRITE_READ_32 logic. - */ - cmd->t_task_lba = transport_lba_64_ext(cdb); - cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB; - - /* - * Setup BIDI XOR callback to be run during after I/O - * completion. - */ - cmd->execute_cmd = sbc_execute_rw; - cmd->transport_complete_callback = &xdreadwrite_callback; - break; case WRITE_SAME_32: sectors = transport_get_sectors_32(cdb); if (!sectors) { |