Annotation of embedaddon/istgt/src/istgt_proto.h, revision 1.1.1.1
1.1 misho 1: /*
2: * Copyright (C) 2008-2011 Daisuke Aoyama <aoyama@peach.ne.jp>.
3: * All rights reserved.
4: *
5: * Redistribution and use in source and binary forms, with or without
6: * modification, are permitted provided that the following conditions
7: * are met:
8: * 1. Redistributions of source code must retain the above copyright
9: * notice, this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: *
14: * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17: * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
18: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24: * SUCH DAMAGE.
25: *
26: */
27:
28: #ifndef ISTGT_PROTO_H
29: #define ISTGT_PROTO_H
30:
31: #ifdef HAVE_CONFIG_H
32: #include "config.h"
33: #endif
34:
35: #ifdef USE_ATOMIC
36: #ifdef HAVE_SYS_TYPES_H
37: #include <sys/types.h>
38: #endif
39: #ifdef HAVE_MACHINE_ATOMIC_H
40: #include <machine/atomic.h>
41: #endif
42: #ifdef HAVE_SYS_ATOMIC_H
43: #include <sys/atomic.h>
44: #endif
45: #endif /* USE_ATOMIC */
46:
47: #include <stdint.h>
48: #include <signal.h>
49: #include <sys/socket.h>
50: #ifdef HAVE_UUID_H
51: #include <uuid.h>
52: #endif
53: #include "istgt.h"
54: #include "istgt_iscsi.h"
55: #include "istgt_lu.h"
56:
57: /* istgt_iscsi.c */
58: int istgt_chap_get_authinfo(ISTGT_CHAP_AUTH *auth, const char *authfile, const char *authuser, int ag_tag);
59: int istgt_iscsi_transfer_out(CONN_Ptr conn, ISTGT_LU_CMD_Ptr lu_cmd, uint8_t *data, int alloc_len, int transfer_len);
60: int istgt_create_sess(ISTGT_Ptr istgt, CONN_Ptr conn, ISTGT_LU_Ptr lu);
61: int istgt_create_conn(ISTGT_Ptr istgt, PORTAL_Ptr portal, int sock, struct sockaddr *sa, socklen_t salen);
62: void istgt_lock_gconns(void);
63: void istgt_unlock_gconns(void);
64: int istgt_get_gnconns(void);
65: CONN_Ptr istgt_get_gconn(int idx);
66: int istgt_get_active_conns(void);
67: CONN_Ptr istgt_find_conn(const char *initiator_port, const char *target_name, uint16_t tsih);
68: int istgt_iscsi_init(ISTGT_Ptr istgt);
69: int istgt_iscsi_shutdown(ISTGT_Ptr istgt);
70: int istgt_iscsi_copy_pdu(ISCSI_PDU_Ptr dst_pdu, ISCSI_PDU_Ptr src_pdu);
71:
72: /* istgt_lu.c */
73: int istgt_lu_allow_netmask(const char *netmask, const char *addr);
74: int istgt_lu_access(CONN_Ptr conn, ISTGT_LU_Ptr lu, const char *iqn, const char *addr);
75: int istgt_lu_visible(ISTGT_Ptr istgt, ISTGT_LU_Ptr lu, const char *iqn, int pg_tag);
76: int istgt_lu_sendtargets(CONN_Ptr conn, const char *iiqn, const char *iaddr, const char *tiqn, uint8_t *data, int alloc_len, int data_len);
77: ISTGT_LU_Ptr istgt_lu_find_target(ISTGT_Ptr istgt, const char *target_name);
78: uint16_t istgt_lu_allocate_tsih(ISTGT_LU_Ptr lu, const char *initiator_port, int tag);
79: void istgt_lu_free_tsih(ISTGT_LU_Ptr lu, uint16_t tsih, char *initiator_port);
80: char *istgt_lu_get_media_flags_string(int flags, char *buf, size_t len);
81: uint64_t istgt_lu_get_devsize(const char *file);
82: uint64_t istgt_lu_get_filesize(const char *file);
83: uint64_t istgt_lu_parse_size(const char *size);
84: int istgt_lu_parse_media_flags(const char *flags);
85: uint64_t istgt_lu_parse_media_size(const char *file, const char *size, int *flags);
86: PORTAL *istgt_lu_find_portalgroup(ISTGT_Ptr istgt, int tag);
87: INITIATOR_GROUP *istgt_lu_find_initiatorgroup(ISTGT_Ptr istgt, int tag);
88: int istgt_lu_init(ISTGT_Ptr istgt);
89: int istgt_lu_set_all_state(ISTGT_Ptr istgt, ISTGT_STATE state);
90: int istgt_lu_create_threads(ISTGT_Ptr istgt);
91: int istgt_lu_shutdown(ISTGT_Ptr istgt);
92: int istgt_lu_islun2lun(uint64_t islun);
93: uint64_t istgt_lu_lun2islun(int lun, int maxlun);
94: int istgt_lu_reset(ISTGT_LU_Ptr lu, uint64_t lun);
95: int istgt_lu_execute(CONN_Ptr conn, ISTGT_LU_CMD_Ptr lu_cmd);
96: int istgt_lu_create_task(CONN_Ptr conn, ISTGT_LU_CMD_Ptr lu_cmd, ISTGT_LU_TASK_Ptr lu_task, int lun);
97: int istgt_lu_destroy_task(ISTGT_LU_TASK_Ptr lu_task);
98: int istgt_lu_clear_task_IT(CONN_Ptr conn, ISTGT_LU_Ptr lu);
99: int istgt_lu_clear_task_ITL(CONN_Ptr conn, ISTGT_LU_Ptr lu, uint64_t lun);
100: int istgt_lu_clear_task_ITLQ(CONN_Ptr conn, ISTGT_LU_Ptr lu, uint64_t lun, uint32_t CmdSN);
101: int istgt_lu_clear_all_task(ISTGT_LU_Ptr lu, uint64_t lun);
102:
103: /* istgt_lu_ctl.c */
104: int istgt_create_uctl(ISTGT_Ptr istgt, PORTAL_Ptr portal, int sock, struct sockaddr *sa, socklen_t salen);
105: int istgt_init_uctl(ISTGT_Ptr istgt);
106:
107: /* istgt_lu_disk.c */
108: struct istgt_lu_disk_t;
109: void istgt_scsi_dump_cdb(uint8_t *cdb);
110: void istgt_strcpy_pad(uint8_t *dst, size_t size, const char *src, int pad);
111: #ifdef HAVE_UUID_H
112: uint64_t istgt_uuid2uint64(uuid_t *uuid);
113: #endif /* HAVE_UUID_H */
114: uint64_t istgt_get_lui(const char *name, int lun);
115: uint64_t istgt_get_rkey(const char *initiator_name, uint64_t lui);
116: int istgt_lu_set_lid(uint8_t *buf, uint64_t vid);
117: int istgt_lu_set_id(uint8_t *buf, uint64_t vid);
118: int istgt_lu_set_extid(uint8_t *buf, uint64_t vid, uint64_t vide);
119: int istgt_lu_scsi_build_sense_data(uint8_t *data, int sk, int asc, int ascq);
120: int istgt_lu_scsi_build_sense_data2(uint8_t *data, int sk, int asc, int ascq);
121: int istgt_lu_disk_init(ISTGT_Ptr istgt, ISTGT_LU_Ptr lu);
122: int istgt_lu_disk_shutdown(ISTGT_Ptr istgt, ISTGT_LU_Ptr lu);
123: int istgt_lu_disk_reset(ISTGT_LU_Ptr lu, int lun);
124: int istgt_lu_disk_execute(CONN_Ptr conn, ISTGT_LU_CMD_Ptr lu_cmd);
125: int istgt_lu_disk_queue_clear_IT(CONN_Ptr conn, ISTGT_LU_Ptr lu);
126: int istgt_lu_disk_queue_clear_ITL(CONN_Ptr conn, ISTGT_LU_Ptr lu, int lun);
127: int istgt_lu_disk_queue_clear_ITLQ(CONN_Ptr conn, ISTGT_LU_Ptr lu, int lun, uint32_t CmdSN);
128: int istgt_lu_disk_queue_clear_all(ISTGT_LU_Ptr lu, int lun);
129: int istgt_lu_disk_queue(CONN_Ptr conn, ISTGT_LU_CMD_Ptr lu_cmd);
130: int istgt_lu_disk_queue_count(ISTGT_LU_Ptr lu, int *lun);
131: int istgt_lu_disk_queue_start(ISTGT_LU_Ptr lu, int lun);
132: void istgt_lu_disk_aio_done(siginfo_t *info);
133:
134: /* istgt_lu_dvd.c */
135: struct istgt_lu_dvd_t;
136: int istgt_lu_dvd_media_present(struct istgt_lu_dvd_t *spec);
137: int istgt_lu_dvd_media_lock(struct istgt_lu_dvd_t *spec);
138: int istgt_lu_dvd_load_media(struct istgt_lu_dvd_t *spec);
139: int istgt_lu_dvd_unload_media(struct istgt_lu_dvd_t *spec);
140: int istgt_lu_dvd_change_media(struct istgt_lu_dvd_t *spec, char *type, char *flags, char *file, char *size);
141: int istgt_lu_dvd_init(ISTGT_Ptr istgt, ISTGT_LU_Ptr lu);
142: int istgt_lu_dvd_shutdown(ISTGT_Ptr istgt, ISTGT_LU_Ptr lu);
143: int istgt_lu_dvd_reset(ISTGT_LU_Ptr lu, int lun);
144: int istgt_lu_dvd_execute(CONN_Ptr conn, ISTGT_LU_CMD_Ptr lu_cmd);
145:
146: /* istgt_lu_tape.c */
147: struct istgt_lu_tape_t;
148: int istgt_lu_tape_media_present(struct istgt_lu_tape_t *spec);
149: int istgt_lu_tape_media_lock(struct istgt_lu_tape_t *spec);
150: int istgt_lu_tape_load_media(struct istgt_lu_tape_t *spec);
151: int istgt_lu_tape_unload_media(struct istgt_lu_tape_t *spec);
152: int istgt_lu_tape_change_media(struct istgt_lu_tape_t *spec, char *type, char *flags, char *file, char *size);
153: int istgt_lu_tape_init(ISTGT_Ptr istgt, ISTGT_LU_Ptr lu);
154: int istgt_lu_tape_shutdown(ISTGT_Ptr istgt, ISTGT_LU_Ptr lu);
155: int istgt_lu_tape_reset(ISTGT_LU_Ptr lu, int lun);
156: int istgt_lu_tape_execute(CONN_Ptr conn, ISTGT_LU_CMD_Ptr lu_cmd);
157:
158: /* istgt_lu_pass.c */
159: int istgt_lu_pass_init(ISTGT_Ptr istgt, ISTGT_LU_Ptr lu);
160: int istgt_lu_pass_shutdown(ISTGT_Ptr istgt, ISTGT_LU_Ptr lu);
161: int istgt_lu_pass_reset(ISTGT_LU_Ptr lu, int lun);
162: int istgt_lu_pass_execute(CONN_Ptr conn, ISTGT_LU_CMD_Ptr lu_cmd);
163:
164: #ifdef USE_ATOMIC
165: static inline int
166: istgt_lu_get_state(ISTGT_LU_Ptr lu)
167: {
168: ISTGT_STATE state;
169: #if defined HAVE_ATOMIC_LOAD_ACQ_INT
170: state = atomic_load_acq_int((unsigned int *)&lu->state);
171: #elif defined HAVE_ATOMIC_OR_UINT_NV
172: state = (int)atomic_or_uint_nv((unsigned int *)&lu->state, 0);
173: #else
174: #error "no atomic operation"
175: #endif
176: return state;
177: }
178: static inline void
179: istgt_lu_set_state(ISTGT_LU_Ptr lu, ISTGT_STATE state)
180: {
181: #if defined HAVE_ATOMIC_STORE_REL_INT
182: atomic_store_rel_int((unsigned int *)&lu->state, state);
183: #elif defined HAVE_ATOMIC_SWAP_UINT
184: (void)atomic_swap_uint((unsigned int *)&lu->state, state);
185: #if defined HAVE_MEMBAR_PRODUCER
186: membar_producer();
187: #endif
188: #else
189: #error "no atomic operation"
190: #endif
191: }
192: #else
193: static inline int
194: istgt_lu_get_state(ISTGT_LU_Ptr lu)
195: {
196: ISTGT_STATE state;
197: MTX_LOCK(&lu->state_mutex);
198: state = lu->state;
199: MTX_UNLOCK(&lu->state_mutex);
200: return state;
201: }
202:
203: static inline void
204: istgt_lu_set_state(ISTGT_LU_Ptr lu, ISTGT_STATE state)
205: {
206: MTX_LOCK(&lu->state_mutex);
207: lu->state = state;
208: MTX_UNLOCK(&lu->state_mutex);
209: }
210: #endif /* USE_ATOMIC */
211:
212: #endif /* ISTGT_PROTO_H */
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