2317fdfa8c
by the offload driver; there is no reason to do so, and it actually harms performance. MFC after: 1 month
460 lines
14 KiB
C
460 lines
14 KiB
C
/*-
|
|
* Copyright (c) 2012 The FreeBSD Foundation
|
|
* All rights reserved.
|
|
*
|
|
* This software was developed by Edward Tomasz Napierala under sponsorship
|
|
* from the FreeBSD Foundation.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef CTLD_H
|
|
#define CTLD_H
|
|
|
|
#include <sys/queue.h>
|
|
#ifdef ICL_KERNEL_PROXY
|
|
#include <sys/types.h>
|
|
#endif
|
|
#include <sys/socket.h>
|
|
#include <stdbool.h>
|
|
#include <libutil.h>
|
|
|
|
#define DEFAULT_CONFIG_PATH "/etc/ctl.conf"
|
|
#define DEFAULT_PIDFILE "/var/run/ctld.pid"
|
|
#define DEFAULT_BLOCKSIZE 512
|
|
#define DEFAULT_CD_BLOCKSIZE 2048
|
|
|
|
#define MAX_LUNS 1024
|
|
#define MAX_NAME_LEN 223
|
|
#define MAX_DATA_SEGMENT_LENGTH (128 * 1024)
|
|
#define MAX_BURST_LENGTH 16776192
|
|
#define FIRST_BURST_LENGTH (128 * 1024)
|
|
#define SOCKBUF_SIZE 1048576
|
|
|
|
struct auth {
|
|
TAILQ_ENTRY(auth) a_next;
|
|
struct auth_group *a_auth_group;
|
|
char *a_user;
|
|
char *a_secret;
|
|
char *a_mutual_user;
|
|
char *a_mutual_secret;
|
|
};
|
|
|
|
struct auth_name {
|
|
TAILQ_ENTRY(auth_name) an_next;
|
|
struct auth_group *an_auth_group;
|
|
char *an_initator_name;
|
|
};
|
|
|
|
struct auth_portal {
|
|
TAILQ_ENTRY(auth_portal) ap_next;
|
|
struct auth_group *ap_auth_group;
|
|
char *ap_initator_portal;
|
|
struct sockaddr_storage ap_sa;
|
|
int ap_mask;
|
|
};
|
|
|
|
#define AG_TYPE_UNKNOWN 0
|
|
#define AG_TYPE_DENY 1
|
|
#define AG_TYPE_NO_AUTHENTICATION 2
|
|
#define AG_TYPE_CHAP 3
|
|
#define AG_TYPE_CHAP_MUTUAL 4
|
|
|
|
struct auth_group {
|
|
TAILQ_ENTRY(auth_group) ag_next;
|
|
struct conf *ag_conf;
|
|
char *ag_name;
|
|
struct target *ag_target;
|
|
int ag_type;
|
|
TAILQ_HEAD(, auth) ag_auths;
|
|
TAILQ_HEAD(, auth_name) ag_names;
|
|
TAILQ_HEAD(, auth_portal) ag_portals;
|
|
};
|
|
|
|
struct portal {
|
|
TAILQ_ENTRY(portal) p_next;
|
|
struct portal_group *p_portal_group;
|
|
bool p_iser;
|
|
char *p_listen;
|
|
struct addrinfo *p_ai;
|
|
#ifdef ICL_KERNEL_PROXY
|
|
int p_id;
|
|
#endif
|
|
|
|
TAILQ_HEAD(, target) p_targets;
|
|
int p_socket;
|
|
};
|
|
|
|
TAILQ_HEAD(options, option);
|
|
|
|
#define PG_FILTER_UNKNOWN 0
|
|
#define PG_FILTER_NONE 1
|
|
#define PG_FILTER_PORTAL 2
|
|
#define PG_FILTER_PORTAL_NAME 3
|
|
#define PG_FILTER_PORTAL_NAME_AUTH 4
|
|
|
|
struct portal_group {
|
|
TAILQ_ENTRY(portal_group) pg_next;
|
|
struct conf *pg_conf;
|
|
struct options pg_options;
|
|
char *pg_name;
|
|
struct auth_group *pg_discovery_auth_group;
|
|
int pg_discovery_filter;
|
|
int pg_foreign;
|
|
bool pg_unassigned;
|
|
TAILQ_HEAD(, portal) pg_portals;
|
|
TAILQ_HEAD(, port) pg_ports;
|
|
char *pg_offload;
|
|
char *pg_redirection;
|
|
|
|
uint16_t pg_tag;
|
|
};
|
|
|
|
struct pport {
|
|
TAILQ_ENTRY(pport) pp_next;
|
|
TAILQ_HEAD(, port) pp_ports;
|
|
struct conf *pp_conf;
|
|
char *pp_name;
|
|
|
|
uint32_t pp_ctl_port;
|
|
};
|
|
|
|
struct port {
|
|
TAILQ_ENTRY(port) p_next;
|
|
TAILQ_ENTRY(port) p_pgs;
|
|
TAILQ_ENTRY(port) p_pps;
|
|
TAILQ_ENTRY(port) p_ts;
|
|
struct conf *p_conf;
|
|
char *p_name;
|
|
struct auth_group *p_auth_group;
|
|
struct portal_group *p_portal_group;
|
|
struct pport *p_pport;
|
|
struct target *p_target;
|
|
int p_foreign;
|
|
|
|
uint32_t p_ctl_port;
|
|
};
|
|
|
|
struct option {
|
|
TAILQ_ENTRY(option) o_next;
|
|
char *o_name;
|
|
char *o_value;
|
|
};
|
|
|
|
struct lun {
|
|
TAILQ_ENTRY(lun) l_next;
|
|
struct conf *l_conf;
|
|
struct options l_options;
|
|
char *l_name;
|
|
char *l_backend;
|
|
uint8_t l_device_type;
|
|
int l_blocksize;
|
|
char *l_device_id;
|
|
char *l_path;
|
|
char *l_scsiname;
|
|
char *l_serial;
|
|
int64_t l_size;
|
|
|
|
int l_ctl_lun;
|
|
};
|
|
|
|
struct target {
|
|
TAILQ_ENTRY(target) t_next;
|
|
struct conf *t_conf;
|
|
struct lun *t_luns[MAX_LUNS];
|
|
struct auth_group *t_auth_group;
|
|
TAILQ_HEAD(, port) t_ports;
|
|
char *t_name;
|
|
char *t_alias;
|
|
char *t_redirection;
|
|
};
|
|
|
|
struct isns {
|
|
TAILQ_ENTRY(isns) i_next;
|
|
struct conf *i_conf;
|
|
char *i_addr;
|
|
struct addrinfo *i_ai;
|
|
};
|
|
|
|
struct conf {
|
|
char *conf_pidfile_path;
|
|
TAILQ_HEAD(, lun) conf_luns;
|
|
TAILQ_HEAD(, target) conf_targets;
|
|
TAILQ_HEAD(, auth_group) conf_auth_groups;
|
|
TAILQ_HEAD(, port) conf_ports;
|
|
TAILQ_HEAD(, portal_group) conf_portal_groups;
|
|
TAILQ_HEAD(, pport) conf_pports;
|
|
TAILQ_HEAD(, isns) conf_isns;
|
|
int conf_isns_period;
|
|
int conf_isns_timeout;
|
|
int conf_debug;
|
|
int conf_timeout;
|
|
int conf_maxproc;
|
|
|
|
#ifdef ICL_KERNEL_PROXY
|
|
int conf_portal_id;
|
|
#endif
|
|
struct pidfh *conf_pidfh;
|
|
|
|
bool conf_default_pg_defined;
|
|
bool conf_default_ag_defined;
|
|
bool conf_kernel_port_on;
|
|
};
|
|
|
|
#define CONN_SESSION_TYPE_NONE 0
|
|
#define CONN_SESSION_TYPE_DISCOVERY 1
|
|
#define CONN_SESSION_TYPE_NORMAL 2
|
|
|
|
#define CONN_DIGEST_NONE 0
|
|
#define CONN_DIGEST_CRC32C 1
|
|
|
|
struct connection {
|
|
struct portal *conn_portal;
|
|
struct port *conn_port;
|
|
struct target *conn_target;
|
|
int conn_socket;
|
|
int conn_session_type;
|
|
char *conn_initiator_name;
|
|
char *conn_initiator_addr;
|
|
char *conn_initiator_alias;
|
|
uint8_t conn_initiator_isid[6];
|
|
struct sockaddr_storage conn_initiator_sa;
|
|
uint32_t conn_cmdsn;
|
|
uint32_t conn_statsn;
|
|
size_t conn_data_segment_limit;
|
|
size_t conn_max_data_segment_length;
|
|
size_t conn_max_burst_length;
|
|
size_t conn_first_burst_length;
|
|
int conn_immediate_data;
|
|
int conn_header_digest;
|
|
int conn_data_digest;
|
|
const char *conn_user;
|
|
struct chap *conn_chap;
|
|
};
|
|
|
|
struct pdu {
|
|
struct connection *pdu_connection;
|
|
struct iscsi_bhs *pdu_bhs;
|
|
char *pdu_data;
|
|
size_t pdu_data_len;
|
|
};
|
|
|
|
#define KEYS_MAX 1024
|
|
|
|
struct keys {
|
|
char *keys_names[KEYS_MAX];
|
|
char *keys_values[KEYS_MAX];
|
|
char *keys_data;
|
|
size_t keys_data_len;
|
|
};
|
|
|
|
#define CHAP_CHALLENGE_LEN 1024
|
|
#define CHAP_DIGEST_LEN 16 /* Equal to MD5 digest size. */
|
|
|
|
struct chap {
|
|
unsigned char chap_id;
|
|
char chap_challenge[CHAP_CHALLENGE_LEN];
|
|
char chap_response[CHAP_DIGEST_LEN];
|
|
};
|
|
|
|
struct rchap {
|
|
char *rchap_secret;
|
|
unsigned char rchap_id;
|
|
void *rchap_challenge;
|
|
size_t rchap_challenge_len;
|
|
};
|
|
|
|
struct chap *chap_new(void);
|
|
char *chap_get_id(const struct chap *chap);
|
|
char *chap_get_challenge(const struct chap *chap);
|
|
int chap_receive(struct chap *chap, const char *response);
|
|
int chap_authenticate(struct chap *chap,
|
|
const char *secret);
|
|
void chap_delete(struct chap *chap);
|
|
|
|
struct rchap *rchap_new(const char *secret);
|
|
int rchap_receive(struct rchap *rchap,
|
|
const char *id, const char *challenge);
|
|
char *rchap_get_response(struct rchap *rchap);
|
|
void rchap_delete(struct rchap *rchap);
|
|
|
|
int parse_conf(struct conf *conf, const char *path);
|
|
int uclparse_conf(struct conf *conf, const char *path);
|
|
|
|
struct conf *conf_new(void);
|
|
struct conf *conf_new_from_kernel(void);
|
|
void conf_delete(struct conf *conf);
|
|
int conf_verify(struct conf *conf);
|
|
|
|
struct auth_group *auth_group_new(struct conf *conf, const char *name);
|
|
void auth_group_delete(struct auth_group *ag);
|
|
struct auth_group *auth_group_find(const struct conf *conf,
|
|
const char *name);
|
|
int auth_group_set_type(struct auth_group *ag,
|
|
const char *type);
|
|
|
|
const struct auth *auth_new_chap(struct auth_group *ag,
|
|
const char *user, const char *secret);
|
|
const struct auth *auth_new_chap_mutual(struct auth_group *ag,
|
|
const char *user, const char *secret,
|
|
const char *user2, const char *secret2);
|
|
const struct auth *auth_find(const struct auth_group *ag,
|
|
const char *user);
|
|
|
|
const struct auth_name *auth_name_new(struct auth_group *ag,
|
|
const char *initiator_name);
|
|
bool auth_name_defined(const struct auth_group *ag);
|
|
const struct auth_name *auth_name_find(const struct auth_group *ag,
|
|
const char *initiator_name);
|
|
int auth_name_check(const struct auth_group *ag,
|
|
const char *initiator_name);
|
|
|
|
const struct auth_portal *auth_portal_new(struct auth_group *ag,
|
|
const char *initiator_portal);
|
|
bool auth_portal_defined(const struct auth_group *ag);
|
|
const struct auth_portal *auth_portal_find(const struct auth_group *ag,
|
|
const struct sockaddr_storage *sa);
|
|
int auth_portal_check(const struct auth_group *ag,
|
|
const struct sockaddr_storage *sa);
|
|
|
|
struct portal_group *portal_group_new(struct conf *conf, const char *name);
|
|
void portal_group_delete(struct portal_group *pg);
|
|
struct portal_group *portal_group_find(const struct conf *conf,
|
|
const char *name);
|
|
int portal_group_add_listen(struct portal_group *pg,
|
|
const char *listen, bool iser);
|
|
int portal_group_set_filter(struct portal_group *pg,
|
|
const char *filter);
|
|
int portal_group_set_offload(struct portal_group *pg,
|
|
const char *offload);
|
|
int portal_group_set_redirection(struct portal_group *pg,
|
|
const char *addr);
|
|
|
|
int isns_new(struct conf *conf, const char *addr);
|
|
void isns_delete(struct isns *is);
|
|
void isns_register(struct isns *isns, struct isns *oldisns);
|
|
void isns_check(struct isns *isns);
|
|
void isns_deregister(struct isns *isns);
|
|
|
|
struct pport *pport_new(struct conf *conf, const char *name,
|
|
uint32_t ctl_port);
|
|
struct pport *pport_find(const struct conf *conf, const char *name);
|
|
struct pport *pport_copy(struct pport *pport, struct conf *conf);
|
|
void pport_delete(struct pport *pport);
|
|
|
|
struct port *port_new(struct conf *conf, struct target *target,
|
|
struct portal_group *pg);
|
|
struct port *port_new_pp(struct conf *conf, struct target *target,
|
|
struct pport *pp);
|
|
struct port *port_find(const struct conf *conf, const char *name);
|
|
struct port *port_find_in_pg(const struct portal_group *pg,
|
|
const char *target);
|
|
void port_delete(struct port *port);
|
|
|
|
struct target *target_new(struct conf *conf, const char *name);
|
|
void target_delete(struct target *target);
|
|
struct target *target_find(struct conf *conf,
|
|
const char *name);
|
|
int target_set_redirection(struct target *target,
|
|
const char *addr);
|
|
|
|
struct lun *lun_new(struct conf *conf, const char *name);
|
|
void lun_delete(struct lun *lun);
|
|
struct lun *lun_find(const struct conf *conf, const char *name);
|
|
void lun_set_backend(struct lun *lun, const char *value);
|
|
void lun_set_device_type(struct lun *lun, uint8_t value);
|
|
void lun_set_blocksize(struct lun *lun, size_t value);
|
|
void lun_set_device_id(struct lun *lun, const char *value);
|
|
void lun_set_path(struct lun *lun, const char *value);
|
|
void lun_set_scsiname(struct lun *lun, const char *value);
|
|
void lun_set_serial(struct lun *lun, const char *value);
|
|
void lun_set_size(struct lun *lun, size_t value);
|
|
void lun_set_ctl_lun(struct lun *lun, uint32_t value);
|
|
|
|
struct option *option_new(struct options *os,
|
|
const char *name, const char *value);
|
|
void option_delete(struct options *os, struct option *co);
|
|
struct option *option_find(const struct options *os, const char *name);
|
|
void option_set(struct option *o, const char *value);
|
|
|
|
void kernel_init(void);
|
|
int kernel_lun_add(struct lun *lun);
|
|
int kernel_lun_modify(struct lun *lun);
|
|
int kernel_lun_remove(struct lun *lun);
|
|
void kernel_handoff(struct connection *conn);
|
|
void kernel_limits(const char *offload,
|
|
size_t *max_data_segment_length);
|
|
int kernel_port_add(struct port *port);
|
|
int kernel_port_update(struct port *port, struct port *old);
|
|
int kernel_port_remove(struct port *port);
|
|
void kernel_capsicate(void);
|
|
|
|
#ifdef ICL_KERNEL_PROXY
|
|
void kernel_listen(struct addrinfo *ai, bool iser,
|
|
int portal_id);
|
|
void kernel_accept(int *connection_id, int *portal_id,
|
|
struct sockaddr *client_sa,
|
|
socklen_t *client_salen);
|
|
void kernel_send(struct pdu *pdu);
|
|
void kernel_receive(struct pdu *pdu);
|
|
#endif
|
|
|
|
struct keys *keys_new(void);
|
|
void keys_delete(struct keys *keys);
|
|
void keys_load(struct keys *keys, const struct pdu *pdu);
|
|
void keys_save(struct keys *keys, struct pdu *pdu);
|
|
const char *keys_find(struct keys *keys, const char *name);
|
|
void keys_add(struct keys *keys,
|
|
const char *name, const char *value);
|
|
void keys_add_int(struct keys *keys,
|
|
const char *name, int value);
|
|
|
|
struct pdu *pdu_new(struct connection *conn);
|
|
struct pdu *pdu_new_response(struct pdu *request);
|
|
void pdu_delete(struct pdu *pdu);
|
|
void pdu_receive(struct pdu *request);
|
|
void pdu_send(struct pdu *response);
|
|
|
|
void login(struct connection *conn);
|
|
|
|
void discovery(struct connection *conn);
|
|
|
|
void log_init(int level);
|
|
void log_set_peer_name(const char *name);
|
|
void log_set_peer_addr(const char *addr);
|
|
void log_err(int, const char *, ...)
|
|
__dead2 __printflike(2, 3);
|
|
void log_errx(int, const char *, ...)
|
|
__dead2 __printflike(2, 3);
|
|
void log_warn(const char *, ...) __printflike(1, 2);
|
|
void log_warnx(const char *, ...) __printflike(1, 2);
|
|
void log_debugx(const char *, ...) __printflike(1, 2);
|
|
|
|
char *checked_strdup(const char *);
|
|
bool valid_iscsi_name(const char *name);
|
|
void set_timeout(int timeout, int fatal);
|
|
bool timed_out(void);
|
|
|
|
#endif /* !CTLD_H */
|