2 * Copyright (c) 2012 The FreeBSD Foundation
5 * This software was developed by Edward Tomasz Napierala under sponsorship
6 * from the FreeBSD Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 #include <iscsi_ioctl.h>
40 #define DEFAULT_PIDFILE "/var/run/iscsid.pid"
42 #define CONN_DIGEST_NONE 0
43 #define CONN_DIGEST_CRC32C 1
45 #define CONN_MUTUAL_CHALLENGE_LEN 1024
46 #define SOCKBUF_SIZE 1048576
47 #define MAX_BURST_LENGTH (256 * 1024)
48 #define FIRST_BURST_LENGTH (128 * 1024)
53 unsigned int conn_session_id;
54 struct iscsi_session_conf conn_conf;
55 struct iscsi_session_limits conn_limits;
56 char conn_target_alias[ISCSI_ADDR_LEN];
60 int conn_header_digest;
62 bool conn_initial_r2t;
63 bool conn_immediate_data;
64 size_t conn_max_data_segment_length;
65 size_t conn_max_burst_length;
66 size_t conn_first_burst_length;
67 struct chap *conn_mutual_chap;
71 struct connection *pdu_connection;
72 struct iscsi_bhs *pdu_bhs;
80 char *keys_names[KEYS_MAX];
81 char *keys_values[KEYS_MAX];
86 #define CHAP_CHALLENGE_LEN 1024
87 #define CHAP_DIGEST_LEN 16 /* Equal to MD5 digest size. */
90 unsigned char chap_id;
91 char chap_challenge[CHAP_CHALLENGE_LEN];
92 char chap_response[CHAP_DIGEST_LEN];
97 unsigned char rchap_id;
98 void *rchap_challenge;
99 size_t rchap_challenge_len;
102 struct chap *chap_new(void);
103 char *chap_get_id(const struct chap *chap);
104 char *chap_get_challenge(const struct chap *chap);
105 int chap_receive(struct chap *chap, const char *response);
106 int chap_authenticate(struct chap *chap,
108 void chap_delete(struct chap *chap);
110 struct rchap *rchap_new(const char *secret);
111 int rchap_receive(struct rchap *rchap,
112 const char *id, const char *challenge);
113 char *rchap_get_response(struct rchap *rchap);
114 void rchap_delete(struct rchap *rchap);
116 struct keys *keys_new(void);
117 void keys_delete(struct keys *key);
118 void keys_load(struct keys *keys, const struct pdu *pdu);
119 void keys_save(struct keys *keys, struct pdu *pdu);
120 const char *keys_find(struct keys *keys, const char *name);
121 void keys_add(struct keys *keys,
122 const char *name, const char *value);
123 void keys_add_int(struct keys *keys,
124 const char *name, int value);
126 struct pdu *pdu_new(struct connection *ic);
127 struct pdu *pdu_new_response(struct pdu *request);
128 void pdu_receive(struct pdu *request);
129 void pdu_send(struct pdu *response);
130 void pdu_delete(struct pdu *ip);
132 void login(struct connection *ic);
134 void discovery(struct connection *ic);
136 void log_init(int level);
137 void log_set_peer_name(const char *name);
138 void log_set_peer_addr(const char *addr);
139 void log_err(int, const char *, ...)
140 __dead2 __printflike(2, 3);
141 void log_errx(int, const char *, ...)
142 __dead2 __printflike(2, 3);
143 void log_warn(const char *, ...) __printflike(1, 2);
144 void log_warnx(const char *, ...) __printflike(1, 2);
145 void log_debugx(const char *, ...) __printflike(1, 2);
147 char *checked_strdup(const char *);
148 bool timed_out(void);
149 void fail(const struct connection *, const char *);
151 #endif /* !ISCSID_H */