718cf2ccb9
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
142 lines
4.0 KiB
C
142 lines
4.0 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2012 The FreeBSD Foundation
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* All rights reserved.
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*
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* This software was developed by Edward Tomasz Napierala under sponsorship
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* from the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef ISCSI_H
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#define ISCSI_H
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struct iscsi_softc;
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struct icl_conn;
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#define ISCSI_NAME_LEN 224 /* 223 bytes, by RFC 3720, + '\0' */
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#define ISCSI_ADDR_LEN 47 /* INET6_ADDRSTRLEN + '\0' */
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#define ISCSI_SECRET_LEN 17 /* 16 + '\0' */
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struct iscsi_outstanding {
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TAILQ_ENTRY(iscsi_outstanding) io_next;
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union ccb *io_ccb;
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size_t io_received;
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uint32_t io_initiator_task_tag;
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uint32_t io_datasn;
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void *io_icl_prv;
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};
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struct iscsi_session {
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TAILQ_ENTRY(iscsi_session) is_next;
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struct icl_conn *is_conn;
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struct mtx is_lock;
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uint32_t is_statsn;
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uint32_t is_cmdsn;
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uint32_t is_expcmdsn;
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uint32_t is_maxcmdsn;
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uint32_t is_initiator_task_tag;
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int is_header_digest;
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int is_data_digest;
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int is_initial_r2t;
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int is_max_burst_length;
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int is_first_burst_length;
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uint8_t is_isid[6];
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uint16_t is_tsih;
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bool is_immediate_data;
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int is_max_recv_data_segment_length;
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int is_max_send_data_segment_length;
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char is_target_alias[ISCSI_ALIAS_LEN];
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TAILQ_HEAD(, iscsi_outstanding) is_outstanding;
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STAILQ_HEAD(, icl_pdu) is_postponed;
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struct callout is_callout;
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unsigned int is_timeout;
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/*
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* XXX: This could be rewritten using a single variable,
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* but somehow it results in uglier code.
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*/
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/*
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* We're waiting for iscsid(8); after iscsid_timeout
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* expires, kernel will wake up an iscsid(8) to handle
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* the session.
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*/
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bool is_waiting_for_iscsid;
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/*
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* Some iscsid(8) instance is handling the session;
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* after login_timeout expires, kernel will wake up
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* another iscsid(8) to handle the session.
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*/
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bool is_login_phase;
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/*
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* We're in the process of removing the iSCSI session.
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*/
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bool is_terminating;
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/*
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* We're waiting for the maintenance thread to do some
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* reconnection tasks.
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*/
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bool is_reconnecting;
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bool is_connected;
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struct cam_devq *is_devq;
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struct cam_sim *is_sim;
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struct cam_path *is_path;
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struct cv is_maintenance_cv;
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struct iscsi_softc *is_softc;
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unsigned int is_id;
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struct iscsi_session_conf is_conf;
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bool is_simq_frozen;
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char is_reason[ISCSI_REASON_LEN];
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#ifdef ICL_KERNEL_PROXY
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struct cv is_login_cv;
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struct icl_pdu *is_login_pdu;
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#endif
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};
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struct iscsi_softc {
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device_t sc_dev;
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struct sx sc_lock;
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struct cdev *sc_cdev;
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TAILQ_HEAD(, iscsi_session) sc_sessions;
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struct cv sc_cv;
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unsigned int sc_last_session_id;
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eventhandler_tag sc_shutdown_pre_eh;
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eventhandler_tag sc_shutdown_post_eh;
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};
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#endif /* !ISCSI_H */
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