summaryrefslogtreecommitdiff
path: root/drivers/target/iscsi/iscsi_target_parameters.h
blob: c47b73f5752838a2fcdbc80c3e8ec901498eefa7 (plain)
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
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
#ifndef ISCSI_PARAMETERS_H
#define ISCSI_PARAMETERS_H

#include <linux/types.h>
#include <scsi/iscsi_proto.h>

struct iscsi_extra_response {
	char key[KEY_MAXLEN];
	char value[32];
	struct list_head er_list;
} ____cacheline_aligned;

struct iscsi_param {
	char *name;
	char *value;
	u8 set_param;
	u8 phase;
	u8 scope;
	u8 sender;
	u8 type;
	u8 use;
	u16 type_range;
	u32 state;
	struct list_head p_list;
} ____cacheline_aligned;

struct iscsi_conn;
struct iscsi_conn_ops;
struct iscsi_param_list;
struct iscsi_sess_ops;

extern int iscsi_login_rx_data(struct iscsi_conn *, char *, int);
extern int iscsi_login_tx_data(struct iscsi_conn *, char *, char *, int);
extern void iscsi_dump_conn_ops(struct iscsi_conn_ops *);
extern void iscsi_dump_sess_ops(struct iscsi_sess_ops *);
extern void iscsi_print_params(struct iscsi_param_list *);
extern int iscsi_create_default_params(struct iscsi_param_list **);
extern int iscsi_set_keys_to_negotiate(struct iscsi_param_list *, bool);
extern int iscsi_set_keys_irrelevant_for_discovery(struct iscsi_param_list *);
extern int iscsi_copy_param_list(struct iscsi_param_list **,
			struct iscsi_param_list *, int);
extern int iscsi_change_param_value(char *, struct iscsi_param_list *, int);
extern void iscsi_release_param_list(struct iscsi_param_list *);
extern struct iscsi_param *iscsi_find_param_from_key(char *, struct iscsi_param_list *);
extern int iscsi_extract_key_value(char *, char **, char **);
extern int iscsi_update_param_value(struct iscsi_param *, char *);
extern int iscsi_decode_text_input(u8, u8, char *, u32, struct iscsi_conn *);
extern int iscsi_encode_text_output(u8, u8, char *, u32 *,
			struct iscsi_param_list *, bool);
extern int iscsi_check_negotiated_keys(struct iscsi_param_list *);
extern void iscsi_set_connection_parameters(struct iscsi_conn_ops *,
			struct iscsi_param_list *);
extern void iscsi_set_session_parameters(struct iscsi_sess_ops *,
			struct iscsi_param_list *, int);

#define YES				"Yes"
#define NO				"No"
#define ALL				"All"
#define IRRELEVANT			"Irrelevant"
#define NONE				"None"
#define NOTUNDERSTOOD			"NotUnderstood"
#define REJECT				"Reject"

/*
 * The Parameter Names.
 */
#define AUTHMETHOD			"AuthMethod"
#define HEADERDIGEST			"HeaderDigest"
#define DATADIGEST			"DataDigest"
#define MAXCONNECTIONS			"MaxConnections"
#define SENDTARGETS			"SendTargets"
#define TARGETNAME			"TargetName"
#define INITIATORNAME			"InitiatorName"
#define TARGETALIAS			"TargetAlias"
#define INITIATORALIAS			"InitiatorAlias"
#define TARGETADDRESS			"TargetAddress"
#define TARGETPORTALGROUPTAG		"TargetPortalGroupTag"
#define INITIALR2T			"InitialR2T"
#define IMMEDIATEDATA			"ImmediateData"
#define MAXRECVDATASEGMENTLENGTH	"MaxRecvDataSegmentLength"
#define MAXXMITDATASEGMENTLENGTH	"MaxXmitDataSegmentLength"
#define MAXBURSTLENGTH			"MaxBurstLength"
#define FIRSTBURSTLENGTH		"FirstBurstLength"
#define DEFAULTTIME2WAIT		"DefaultTime2Wait"
#define DEFAULTTIME2RETAIN		"DefaultTime2Retain"
#define MAXOUTSTANDINGR2T		"MaxOutstandingR2T"
#define DATAPDUINORDER			"DataPDUInOrder"
#define DATASEQUENCEINORDER		"DataSequenceInOrder"
#define ERRORRECOVERYLEVEL		"ErrorRecoveryLevel"
#define SESSIONTYPE			"SessionType"
#define IFMARKER			"IFMarker"
#define OFMARKER			"OFMarker"
#define IFMARKINT			"IFMarkInt"
#define OFMARKINT			"OFMarkInt"
#define X_EXTENSIONKEY			"X-com.sbei.version"
#define X_EXTENSIONKEY_CISCO_NEW	"X-com.cisco.protocol"
#define X_EXTENSIONKEY_CISCO_OLD	"X-com.cisco.iscsi.draft"

/*
 * Parameter names of iSCSI Extentions for RDMA (iSER).  See RFC-5046
 */
#define RDMAEXTENSIONS			"RDMAExtensions"
#define INITIATORRECVDATASEGMENTLENGTH	"InitiatorRecvDataSegmentLength"
#define TARGETRECVDATASEGMENTLENGTH	"TargetRecvDataSegmentLength"

/*
 * For AuthMethod.
 */
#define KRB5				"KRB5"
#define SPKM1				"SPKM1"
#define SPKM2				"SPKM2"
#define SRP				"SRP"
#define CHAP				"CHAP"

/*
 * Initial values for Parameter Negotiation.
 */
#define INITIAL_AUTHMETHOD			CHAP
#define INITIAL_HEADERDIGEST			"CRC32C,None"
#define INITIAL_DATADIGEST			"CRC32C,None"
#define INITIAL_MAXCONNECTIONS			"1"
#define INITIAL_SENDTARGETS			ALL
#define INITIAL_TARGETNAME			"LIO.Target"
#define INITIAL_INITIATORNAME			"LIO.Initiator"
#define INITIAL_TARGETALIAS			"LIO Target"
#define INITIAL_INITIATORALIAS			"LIO Initiator"
#define INITIAL_TARGETADDRESS			"0.0.0.0:0000,0"
#define INITIAL_TARGETPORTALGROUPTAG		"1"
#define INITIAL_INITIALR2T			YES
#define INITIAL_IMMEDIATEDATA			YES
#define INITIAL_MAXRECVDATASEGMENTLENGTH	"8192"
/*
 * Match outgoing MXDSL default to incoming Open-iSCSI default
 */
#define INITIAL_MAXXMITDATASEGMENTLENGTH	"262144"
#define INITIAL_MAXBURSTLENGTH			"262144"
#define INITIAL_FIRSTBURSTLENGTH		"65536"
#define INITIAL_DEFAULTTIME2WAIT		"2"
#define INITIAL_DEFAULTTIME2RETAIN		"20"
#define INITIAL_MAXOUTSTANDINGR2T		"1"
#define INITIAL_DATAPDUINORDER			YES
#define INITIAL_DATASEQUENCEINORDER		YES
#define INITIAL_ERRORRECOVERYLEVEL		"0"
#define INITIAL_SESSIONTYPE			NORMAL
#define INITIAL_IFMARKER			NO
#define INITIAL_OFMARKER			NO
#define INITIAL_IFMARKINT			REJECT
#define INITIAL_OFMARKINT			REJECT

/*
 * Initial values for iSER parameters following RFC-5046 Section 6
 */
#define INITIAL_RDMAEXTENSIONS			NO
#define INITIAL_INITIATORRECVDATASEGMENTLENGTH	"262144"
#define INITIAL_TARGETRECVDATASEGMENTLENGTH	"8192"

/*
 * For [Header,Data]Digests.
 */
#define CRC32C				"CRC32C"

/*
 * For SessionType.
 */
#define DISCOVERY			"Discovery"
#define NORMAL				"Normal"

/*
 * struct iscsi_param->use
 */
#define USE_LEADING_ONLY		0x01
#define USE_INITIAL_ONLY		0x02
#define USE_ALL				0x04

#define IS_USE_LEADING_ONLY(p)		((p)->use & USE_LEADING_ONLY)
#define IS_USE_INITIAL_ONLY(p)		((p)->use & USE_INITIAL_ONLY)
#define IS_USE_ALL(p)			((p)->use & USE_ALL)

#define SET_USE_INITIAL_ONLY(p)		((p)->use |= USE_INITIAL_ONLY)

/*
 * struct iscsi_param->sender
 */
#define	SENDER_INITIATOR		0x01
#define SENDER_TARGET			0x02
#define SENDER_BOTH			0x03
/* Used in iscsi_check_key() */
#define SENDER_RECEIVER			0x04

#define IS_SENDER_INITIATOR(p)		((p)->sender & SENDER_INITIATOR)
#define IS_SENDER_TARGET(p)		((p)->sender & SENDER_TARGET)
#define IS_SENDER_BOTH(p)		((p)->sender & SENDER_BOTH)

/*
 * struct iscsi_param->scope
 */
#define SCOPE_CONNECTION_ONLY		0x01
#define SCOPE_SESSION_WIDE		0x02

#define IS_SCOPE_CONNECTION_ONLY(p)	((p)->scope & SCOPE_CONNECTION_ONLY)
#define IS_SCOPE_SESSION_WIDE(p)	((p)->scope & SCOPE_SESSION_WIDE)

/*
 * struct iscsi_param->phase
 */
#define PHASE_SECURITY			0x01
#define PHASE_OPERATIONAL		0x02
#define PHASE_DECLARATIVE		0x04
#define PHASE_FFP0			0x08

#define IS_PHASE_SECURITY(p)		((p)->phase & PHASE_SECURITY)
#define IS_PHASE_OPERATIONAL(p)		((p)->phase & PHASE_OPERATIONAL)
#define IS_PHASE_DECLARATIVE(p)		((p)->phase & PHASE_DECLARATIVE)
#define IS_PHASE_FFP0(p)		((p)->phase & PHASE_FFP0)

/*
 * struct iscsi_param->type
 */
#define TYPE_BOOL_AND			0x01
#define TYPE_BOOL_OR			0x02
#define TYPE_NUMBER			0x04
#define TYPE_NUMBER_RANGE		0x08
#define TYPE_STRING			0x10
#define TYPE_VALUE_LIST			0x20

#define IS_TYPE_BOOL_AND(p)		((p)->type & TYPE_BOOL_AND)
#define IS_TYPE_BOOL_OR(p)		((p)->type & TYPE_BOOL_OR)
#define IS_TYPE_NUMBER(p)		((p)->type & TYPE_NUMBER)
#define IS_TYPE_NUMBER_RANGE(p)		((p)->type & TYPE_NUMBER_RANGE)
#define IS_TYPE_STRING(p)		((p)->type & TYPE_STRING)
#define IS_TYPE_VALUE_LIST(p)		((p)->type & TYPE_VALUE_LIST)

/*
 * struct iscsi_param->type_range
 */
#define TYPERANGE_BOOL_AND		0x0001
#define TYPERANGE_BOOL_OR		0x0002
#define TYPERANGE_0_TO_2		0x0004
#define TYPERANGE_0_TO_3600		0x0008
#define TYPERANGE_0_TO_32767		0x0010
#define TYPERANGE_0_TO_65535		0x0020
#define TYPERANGE_1_TO_65535		0x0040
#define TYPERANGE_2_TO_3600		0x0080
#define TYPERANGE_512_TO_16777215	0x0100
#define TYPERANGE_AUTH			0x0200
#define TYPERANGE_DIGEST		0x0400
#define TYPERANGE_ISCSINAME		0x0800
#define TYPERANGE_SESSIONTYPE		0x1000
#define TYPERANGE_TARGETADDRESS		0x2000
#define TYPERANGE_UTF8			0x4000

#define IS_TYPERANGE_0_TO_2(p)		((p)->type_range & TYPERANGE_0_TO_2)
#define IS_TYPERANGE_0_TO_3600(p)	((p)->type_range & TYPERANGE_0_TO_3600)
#define IS_TYPERANGE_0_TO_32767(p)	((p)->type_range & TYPERANGE_0_TO_32767)
#define IS_TYPERANGE_0_TO_65535(p)	((p)->type_range & TYPERANGE_0_TO_65535)
#define IS_TYPERANGE_1_TO_65535(p)	((p)->type_range & TYPERANGE_1_TO_65535)
#define IS_TYPERANGE_2_TO_3600(p)	((p)->type_range & TYPERANGE_2_TO_3600)
#define IS_TYPERANGE_512_TO_16777215(p)	((p)->type_range & \
						TYPERANGE_512_TO_16777215)
#define IS_TYPERANGE_AUTH_PARAM(p)	((p)->type_range & TYPERANGE_AUTH)
#define IS_TYPERANGE_DIGEST_PARAM(p)	((p)->type_range & TYPERANGE_DIGEST)
#define IS_TYPERANGE_SESSIONTYPE(p)	((p)->type_range & \
						TYPERANGE_SESSIONTYPE)

/*
 * struct iscsi_param->state
 */
#define PSTATE_ACCEPTOR			0x01
#define PSTATE_NEGOTIATE		0x02
#define PSTATE_PROPOSER			0x04
#define PSTATE_IRRELEVANT		0x08
#define PSTATE_REJECT			0x10
#define PSTATE_REPLY_OPTIONAL		0x20
#define PSTATE_RESPONSE_GOT		0x40
#define PSTATE_RESPONSE_SENT		0x80

#define IS_PSTATE_ACCEPTOR(p)		((p)->state & PSTATE_ACCEPTOR)
#define IS_PSTATE_NEGOTIATE(p)		((p)->state & PSTATE_NEGOTIATE)
#define IS_PSTATE_PROPOSER(p)		((p)->state & PSTATE_PROPOSER)
#define IS_PSTATE_IRRELEVANT(p)		((p)->state & PSTATE_IRRELEVANT)
#define IS_PSTATE_REJECT(p)		((p)->state & PSTATE_REJECT)
#define IS_PSTATE_REPLY_OPTIONAL(p)	((p)->state & PSTATE_REPLY_OPTIONAL)
#define IS_PSTATE_RESPONSE_GOT(p)	((p)->state & PSTATE_RESPONSE_GOT)
#define IS_PSTATE_RESPONSE_SENT(p)	((p)->state & PSTATE_RESPONSE_SENT)

#define SET_PSTATE_ACCEPTOR(p)		((p)->state |= PSTATE_ACCEPTOR)
#define SET_PSTATE_NEGOTIATE(p)		((p)->state |= PSTATE_NEGOTIATE)
#define SET_PSTATE_PROPOSER(p)		((p)->state |= PSTATE_PROPOSER)
#define SET_PSTATE_IRRELEVANT(p)	((p)->state |= PSTATE_IRRELEVANT)
#define SET_PSTATE_REJECT(p)		((p)->state |= PSTATE_REJECT)
#define SET_PSTATE_REPLY_OPTIONAL(p)	((p)->state |= PSTATE_REPLY_OPTIONAL)
#define SET_PSTATE_RESPONSE_GOT(p)	((p)->state |= PSTATE_RESPONSE_GOT)
#define SET_PSTATE_RESPONSE_SENT(p)	((p)->state |= PSTATE_RESPONSE_SENT)

#endif /* ISCSI_PARAMETERS_H */