1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
|
/*
* Copyright (C) 2017-2018 Red Hat, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Author: Gris Ge <fge@redhat.com>
*/
#ifndef _GNU_SOURCE
#define _GNU_SOURCE /* For NI_MAXHOST */
#endif
#ifndef __ISCSI_OPEN_USR_IDBM_H__
#define __ISCSI_OPEN_USR_IDBM_H__
#include <stdio.h>
#include <stdbool.h>
#include <netdb.h>
#include "libopeniscsiusr/libopeniscsiusr_common.h"
#ifndef ISCSI_DB_ROOT
#define ISCSI_DB_ROOT "/etc/iscsi"
#endif
#define IFACE_CONFIG_DIR ISCSI_DB_ROOT"/ifaces"
#define AUTH_STR_MAX_LEN 256
#define BOOT_NAME_MAXLEN 256
#define IDBM_DUMP_SIZE 8192
struct __DLL_LOCAL idbm;
struct idbm {
int refs;
};
enum iscsi_auth_method {
ISCSI_AUTH_METHOD_NONE,
ISCSI_AUTH_METHOD_CHAP,
};
enum iscsi_chap_algs {
ISCSI_AUTH_CHAP_ALG_MD5 = 5,
ISCSI_AUTH_CHAP_ALG_SHA1 = 6,
ISCSI_AUTH_CHAP_ALG_SHA256 = 7,
ISCSI_AUTH_CHAP_ALG_SHA3_256 = 8,
AUTH_CHAP_ALG_MAX_COUNT = 5,
};
enum iscsi_startup_type {
ISCSI_STARTUP_MANUAL,
ISCSI_STARTUP_AUTOMATIC,
ISCSI_STARTUP_ONBOOT,
};
enum discovery_type {
DISCOVERY_TYPE_SENDTARGETS,
DISCOVERY_TYPE_ISNS,
DISCOVERY_TYPE_OFFLOAD_SENDTARGETS,
DISCOVERY_TYPE_SLP,
DISCOVERY_TYPE_STATIC,
DISCOVERY_TYPE_FW,
};
enum leading_login_type {
LEADING_LOGIN_NO,
LEADING_LOGIN_YES,
};
enum init_scan_type {
INIT_SCAN_MANUAL,
INIT_SCAN_AUTO,
};
enum digest_type {
DIGEST_NEVER,
DIGEST_ALWAYS,
DIGEST_PREFER_ON,
DIGEST_PREFER_OFF,
};
/* all authentication-related options should be added to this structure.
* this structure is per-session, and can be configured
* by TargetName but not Subnet.
*/
struct iscsi_auth_config {
enum iscsi_auth_method authmethod;
char username[AUTH_STR_MAX_LEN];
unsigned char password[AUTH_STR_MAX_LEN];
uint32_t password_length;
char username_in[AUTH_STR_MAX_LEN];
unsigned char password_in[AUTH_STR_MAX_LEN];
uint32_t password_in_length;
unsigned int chap_algs[AUTH_CHAP_ALG_MAX_COUNT];
};
/* all TCP options go in this structure.
* this structure is per-portal, and can be configured
* both by TargetName and Subnet.
*/
struct iscsi_tcp_config {
int64_t window_size;
int64_t type_of_service;
/* ^ try to set IP TOS bits */
};
/* all per-session timeouts go in this structure.
* this structure is per-session, and can be configured
* by TargetName but not by Subnet.
*/
struct iscsi_session_tmo_cfg {
int64_t replacement_timeout;
};
/* all error handling timeouts go in this structure.
* this structure is per-portal, and can be configured
* both by TargetName and Subnet.
*/
struct iscsi_error_tmo_cfg {
int64_t abort_timeout;
int64_t host_reset_timeout;
int64_t lu_reset_timeout;
int64_t tgt_reset_timeout;
};
/* all per-connection timeouts go in this structure.
* this structure is per-portal, and can be configured
* both by TargetName and Subnet.
*/
struct iscsi_conn_tmo_cfg {
int64_t login_timeout;
int64_t logout_timeout;
int64_t auth_timeout;
int64_t active_timeout;
int64_t noop_out_interval;
int64_t noop_out_timeout;
};
struct iscsi_conn_op_cfg {
int64_t MaxRecvDataSegmentLength;
int64_t MaxXmitDataSegmentLength;
enum digest_type HeaderDigest;
enum digest_type DataDigest;
bool IFMarker;
bool OFMarker;
};
struct iscsi_conn {
enum iscsi_startup_type startup;
char address[NI_MAXHOST];
int32_t port;
struct iscsi_tcp_config tcp;
struct iscsi_conn_tmo_cfg tmo;
struct iscsi_conn_op_cfg op_cfg;
bool is_ipv6;
};
/* all iSCSI operational params go in this structure.
* this structure is per-portal, and can be configured
* both by TargetName and Subnet.
*/
struct iscsi_session_op_cfg {
int64_t DataPDUInOrder;
int64_t DataSequenceInOrder;
int64_t protocol;
bool InitialR2T;
bool ImmediateData;
int64_t FirstBurstLength;
int64_t MaxBurstLength;
int64_t DefaultTime2Wait;
int64_t DefaultTime2Retain;
int64_t MaxConnections;
int64_t MaxOutstandingR2T;
int64_t ERL;
bool FastAbort;
};
struct iscsi_session_idbm {
uint32_t initial_cmdsn;
int64_t reopen_max;
int64_t initial_login_retry_max;
int64_t xmit_thread_priority;
uint16_t cmds_max;
uint16_t queue_depth;
int64_t nr_sessions;
enum init_scan_type scan;
struct iscsi_auth_config auth;
struct iscsi_session_tmo_cfg tmo;
struct iscsi_error_tmo_cfg err_tmo;
struct iscsi_session_op_cfg op_cfg;
struct iscsi_session *se;
uint32_t sid;
/*
* This is a flag passed to iscsid. If set, multiple sessions are
* allowed to be initiated on this record
*/
unsigned char multiple;
char boot_root[BOOT_NAME_MAXLEN];
char boot_nic[BOOT_NAME_MAXLEN];
char boot_target[BOOT_NAME_MAXLEN];
};
__DLL_LOCAL struct idbm *_idbm_new(void);
__DLL_LOCAL void _idbm_free(struct idbm *db);
__DLL_LOCAL int _idbm_lock(struct iscsi_context *ctx);
__DLL_LOCAL void _idbm_unlock(struct iscsi_context *ctx);
__DLL_LOCAL void _idbm_iface_print(struct iscsi_iface *iface, FILE *f);
__DLL_LOCAL int _idbm_iface_get(struct iscsi_context *ctx,
const char *iface_name,
struct iscsi_iface **iface);
__DLL_LOCAL int _idbm_node_get(struct iscsi_context *ctx,
const char *target_name,
const char *portal,
const char *iface_name,
struct iscsi_node **node);
__DLL_LOCAL void _idbm_node_print(struct iscsi_node *node, FILE *f,
bool show_secret);
#endif /* End of __ISCSI_OPEN_USR_IDBM_H__ */
|
