e9295a0f2d
initiator iSCSI offload. Pass maximum data segment size supported by chosen offload module to iscsid(8), and make iscsid(8) not try to negotiate anything larger than that. MFC after: 1 month Sponsored by: The FreeBSD Foundation
118 lines
3.4 KiB
C
118 lines
3.4 KiB
C
/*-
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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 ISCSICTL_H
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#define ISCSICTL_H
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#include <sys/queue.h>
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#include <stdbool.h>
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#include <libutil.h>
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#define DEFAULT_CONFIG_PATH "/etc/iscsi.conf"
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#define DEFAULT_IQN "iqn.1994-09.org.freebsd:"
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#define MAX_NAME_LEN 223
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#define MAX_DATA_SEGMENT_LENGTH 65536
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#define AUTH_METHOD_UNSPECIFIED 0
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#define AUTH_METHOD_NONE 1
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#define AUTH_METHOD_CHAP 2
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#define DIGEST_UNSPECIFIED 0
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#define DIGEST_NONE 1
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#define DIGEST_CRC32C 2
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#define SESSION_TYPE_UNSPECIFIED 0
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#define SESSION_TYPE_NORMAL 1
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#define SESSION_TYPE_DISCOVERY 2
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#define PROTOCOL_UNSPECIFIED 0
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#define PROTOCOL_ISCSI 1
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#define PROTOCOL_ISER 2
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struct target {
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TAILQ_ENTRY(target) t_next;
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struct conf *t_conf;
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char *t_nickname;
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char *t_name;
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char *t_address;
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char *t_initiator_name;
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char *t_initiator_address;
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char *t_initiator_alias;
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int t_header_digest;
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int t_data_digest;
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int t_auth_method;
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int t_session_type;
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int t_protocol;
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char *t_offload;
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char *t_user;
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char *t_secret;
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char *t_mutual_user;
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char *t_mutual_secret;
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};
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struct conf {
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TAILQ_HEAD(, target) conf_targets;
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};
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#define CONN_SESSION_TYPE_NONE 0
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#define CONN_SESSION_TYPE_DISCOVERY 1
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#define CONN_SESSION_TYPE_NORMAL 2
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struct connection {
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struct target *conn_target;
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int conn_socket;
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int conn_session_type;
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uint32_t conn_cmdsn;
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uint32_t conn_statsn;
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size_t conn_max_data_segment_length;
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size_t conn_max_burst_length;
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size_t conn_max_outstanding_r2t;
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int conn_header_digest;
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int conn_data_digest;
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};
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struct conf *conf_new(void);
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struct conf *conf_new_from_file(const char *path);
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void conf_delete(struct conf *conf);
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void conf_verify(struct conf *conf);
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struct target *target_new(struct conf *conf);
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struct target *target_find(struct conf *conf, const char *nickname);
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void target_delete(struct target *ic);
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void print_periphs(int session_id);
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char *checked_strdup(const char *);
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bool valid_iscsi_name(const char *name);
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#endif /* !ISCSICTL_H */
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