1009ea47eSEdward Tomasz Napierala /*- 2009ea47eSEdward Tomasz Napierala * Copyright (c) 2012 The FreeBSD Foundation 3009ea47eSEdward Tomasz Napierala * All rights reserved. 4009ea47eSEdward Tomasz Napierala * 5009ea47eSEdward Tomasz Napierala * This software was developed by Edward Tomasz Napierala under sponsorship 6009ea47eSEdward Tomasz Napierala * from the FreeBSD Foundation. 7009ea47eSEdward Tomasz Napierala * 8009ea47eSEdward Tomasz Napierala * Redistribution and use in source and binary forms, with or without 9009ea47eSEdward Tomasz Napierala * modification, are permitted provided that the following conditions 10009ea47eSEdward Tomasz Napierala * are met: 11009ea47eSEdward Tomasz Napierala * 1. Redistributions of source code must retain the above copyright 12009ea47eSEdward Tomasz Napierala * notice, this list of conditions and the following disclaimer. 13009ea47eSEdward Tomasz Napierala * 2. Redistributions in binary form must reproduce the above copyright 14009ea47eSEdward Tomasz Napierala * notice, this list of conditions and the following disclaimer in the 15009ea47eSEdward Tomasz Napierala * documentation and/or other materials provided with the distribution. 16009ea47eSEdward Tomasz Napierala * 17009ea47eSEdward Tomasz Napierala * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18009ea47eSEdward Tomasz Napierala * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19009ea47eSEdward Tomasz Napierala * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20009ea47eSEdward Tomasz Napierala * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21009ea47eSEdward Tomasz Napierala * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22009ea47eSEdward Tomasz Napierala * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23009ea47eSEdward Tomasz Napierala * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24009ea47eSEdward Tomasz Napierala * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25009ea47eSEdward Tomasz Napierala * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26009ea47eSEdward Tomasz Napierala * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27009ea47eSEdward Tomasz Napierala * SUCH DAMAGE. 28009ea47eSEdward Tomasz Napierala * 29009ea47eSEdward Tomasz Napierala * $FreeBSD$ 30009ea47eSEdward Tomasz Napierala */ 31009ea47eSEdward Tomasz Napierala 32009ea47eSEdward Tomasz Napierala #ifndef ISCSID_H 33009ea47eSEdward Tomasz Napierala #define ISCSID_H 34009ea47eSEdward Tomasz Napierala 35009ea47eSEdward Tomasz Napierala #include <stdbool.h> 36009ea47eSEdward Tomasz Napierala #include <stdint.h> 37*45078155SEdward Tomasz Napierala #include <openssl/md5.h> 38009ea47eSEdward Tomasz Napierala 39009ea47eSEdward Tomasz Napierala #include <iscsi_ioctl.h> 40009ea47eSEdward Tomasz Napierala 41009ea47eSEdward Tomasz Napierala #define DEFAULT_PIDFILE "/var/run/iscsid.pid" 42009ea47eSEdward Tomasz Napierala 43009ea47eSEdward Tomasz Napierala #define CONN_DIGEST_NONE 0 44009ea47eSEdward Tomasz Napierala #define CONN_DIGEST_CRC32C 1 45009ea47eSEdward Tomasz Napierala 46009ea47eSEdward Tomasz Napierala #define CONN_MUTUAL_CHALLENGE_LEN 1024 47009ea47eSEdward Tomasz Napierala 48009ea47eSEdward Tomasz Napierala struct connection { 49009ea47eSEdward Tomasz Napierala int conn_iscsi_fd; 50009ea47eSEdward Tomasz Napierala int conn_socket; 51009ea47eSEdward Tomasz Napierala unsigned int conn_session_id; 52009ea47eSEdward Tomasz Napierala struct iscsi_session_conf conn_conf; 53009ea47eSEdward Tomasz Napierala char conn_target_alias[ISCSI_ADDR_LEN]; 54009ea47eSEdward Tomasz Napierala uint8_t conn_isid[6]; 55ffe82e05SAlexander Motin uint16_t conn_tsih; 56009ea47eSEdward Tomasz Napierala uint32_t conn_statsn; 57009ea47eSEdward Tomasz Napierala int conn_header_digest; 58009ea47eSEdward Tomasz Napierala int conn_data_digest; 59009ea47eSEdward Tomasz Napierala bool conn_initial_r2t; 60009ea47eSEdward Tomasz Napierala bool conn_immediate_data; 61009ea47eSEdward Tomasz Napierala size_t conn_max_data_segment_length; 62009ea47eSEdward Tomasz Napierala size_t conn_max_burst_length; 63009ea47eSEdward Tomasz Napierala size_t conn_first_burst_length; 64*45078155SEdward Tomasz Napierala struct chap *conn_mutual_chap; 65009ea47eSEdward Tomasz Napierala }; 66009ea47eSEdward Tomasz Napierala 67009ea47eSEdward Tomasz Napierala struct pdu { 68009ea47eSEdward Tomasz Napierala struct connection *pdu_connection; 69009ea47eSEdward Tomasz Napierala struct iscsi_bhs *pdu_bhs; 70009ea47eSEdward Tomasz Napierala char *pdu_data; 71009ea47eSEdward Tomasz Napierala size_t pdu_data_len; 72009ea47eSEdward Tomasz Napierala }; 73009ea47eSEdward Tomasz Napierala 74009ea47eSEdward Tomasz Napierala #define KEYS_MAX 1024 75009ea47eSEdward Tomasz Napierala 76009ea47eSEdward Tomasz Napierala struct keys { 77009ea47eSEdward Tomasz Napierala char *keys_names[KEYS_MAX]; 78009ea47eSEdward Tomasz Napierala char *keys_values[KEYS_MAX]; 79009ea47eSEdward Tomasz Napierala char *keys_data; 80009ea47eSEdward Tomasz Napierala size_t keys_data_len; 81009ea47eSEdward Tomasz Napierala }; 82009ea47eSEdward Tomasz Napierala 83*45078155SEdward Tomasz Napierala #define CHAP_CHALLENGE_LEN 1024 84*45078155SEdward Tomasz Napierala 85*45078155SEdward Tomasz Napierala struct chap { 86*45078155SEdward Tomasz Napierala unsigned char chap_id; 87*45078155SEdward Tomasz Napierala char chap_challenge[CHAP_CHALLENGE_LEN]; 88*45078155SEdward Tomasz Napierala char chap_response[MD5_DIGEST_LENGTH]; 89*45078155SEdward Tomasz Napierala }; 90*45078155SEdward Tomasz Napierala 91*45078155SEdward Tomasz Napierala struct rchap { 92*45078155SEdward Tomasz Napierala char *rchap_secret; 93*45078155SEdward Tomasz Napierala unsigned char rchap_id; 94*45078155SEdward Tomasz Napierala void *rchap_challenge; 95*45078155SEdward Tomasz Napierala size_t rchap_challenge_len; 96*45078155SEdward Tomasz Napierala }; 97*45078155SEdward Tomasz Napierala 98*45078155SEdward Tomasz Napierala struct chap *chap_new(void); 99*45078155SEdward Tomasz Napierala char *chap_get_id(const struct chap *chap); 100*45078155SEdward Tomasz Napierala char *chap_get_challenge(const struct chap *chap); 101*45078155SEdward Tomasz Napierala int chap_receive(struct chap *chap, const char *response); 102*45078155SEdward Tomasz Napierala int chap_authenticate(struct chap *chap, 103*45078155SEdward Tomasz Napierala const char *secret); 104*45078155SEdward Tomasz Napierala void chap_delete(struct chap *chap); 105*45078155SEdward Tomasz Napierala 106*45078155SEdward Tomasz Napierala struct rchap *rchap_new(const char *secret); 107*45078155SEdward Tomasz Napierala int rchap_receive(struct rchap *rchap, 108*45078155SEdward Tomasz Napierala const char *id, const char *challenge); 109*45078155SEdward Tomasz Napierala char *rchap_get_response(struct rchap *rchap); 110*45078155SEdward Tomasz Napierala void rchap_delete(struct rchap *rchap); 111*45078155SEdward Tomasz Napierala 112009ea47eSEdward Tomasz Napierala struct keys *keys_new(void); 113009ea47eSEdward Tomasz Napierala void keys_delete(struct keys *key); 114009ea47eSEdward Tomasz Napierala void keys_load(struct keys *keys, const struct pdu *pdu); 115009ea47eSEdward Tomasz Napierala void keys_save(struct keys *keys, struct pdu *pdu); 116009ea47eSEdward Tomasz Napierala const char *keys_find(struct keys *keys, const char *name); 117009ea47eSEdward Tomasz Napierala int keys_find_int(struct keys *keys, const char *name); 118009ea47eSEdward Tomasz Napierala void keys_add(struct keys *keys, 119009ea47eSEdward Tomasz Napierala const char *name, const char *value); 120009ea47eSEdward Tomasz Napierala void keys_add_int(struct keys *keys, 121009ea47eSEdward Tomasz Napierala const char *name, int value); 122009ea47eSEdward Tomasz Napierala 123009ea47eSEdward Tomasz Napierala struct pdu *pdu_new(struct connection *ic); 124009ea47eSEdward Tomasz Napierala struct pdu *pdu_new_response(struct pdu *request); 125009ea47eSEdward Tomasz Napierala void pdu_receive(struct pdu *request); 126009ea47eSEdward Tomasz Napierala void pdu_send(struct pdu *response); 127009ea47eSEdward Tomasz Napierala void pdu_delete(struct pdu *ip); 128009ea47eSEdward Tomasz Napierala 129009ea47eSEdward Tomasz Napierala void login(struct connection *ic); 130009ea47eSEdward Tomasz Napierala 131009ea47eSEdward Tomasz Napierala void discovery(struct connection *ic); 132009ea47eSEdward Tomasz Napierala 133009ea47eSEdward Tomasz Napierala void log_init(int level); 134009ea47eSEdward Tomasz Napierala void log_set_peer_name(const char *name); 135009ea47eSEdward Tomasz Napierala void log_set_peer_addr(const char *addr); 136009ea47eSEdward Tomasz Napierala void log_err(int, const char *, ...) 1373fa953a0SEdward Tomasz Napierala __dead2 __printflike(2, 3); 138009ea47eSEdward Tomasz Napierala void log_errx(int, const char *, ...) 1393fa953a0SEdward Tomasz Napierala __dead2 __printflike(2, 3); 1403fa953a0SEdward Tomasz Napierala void log_warn(const char *, ...) __printflike(1, 2); 141009ea47eSEdward Tomasz Napierala void log_warnx(const char *, ...) __printflike(1, 2); 1423fa953a0SEdward Tomasz Napierala void log_debugx(const char *, ...) __printflike(1, 2); 143009ea47eSEdward Tomasz Napierala 144009ea47eSEdward Tomasz Napierala char *checked_strdup(const char *); 145009ea47eSEdward Tomasz Napierala bool timed_out(void); 146009ea47eSEdward Tomasz Napierala void fail(const struct connection *, const char *); 147009ea47eSEdward Tomasz Napierala 148009ea47eSEdward Tomasz Napierala #endif /* !ISCSID_H */ 149