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f-stack/freebsd/contrib/ngatm/netnatm/api/ccpriv.h

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/*
* Copyright (c) 2003-2004
* Hartmut Brandt
* All rights reserved.
*
* Author: Harti Brandt <harti@freebsd.org>
*
* Redistribution of this software and documentation 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 or documentation 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 AND DOCUMENTATION IS PROVIDED BY THE AUTHOR
* AND ITS 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 ITS 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.
*
* $Begemot: libunimsg/netnatm/api/ccpriv.h,v 1.2 2005/05/23 11:49:17 brandt_h Exp $
*
* ATM API as defined per af-saa-0108
*
* Private declarations.
*/
#ifdef _KERNEL
#ifdef __FreeBSD__
#include <netgraph/atm/ccatm/ng_ccatm_cust.h>
#endif
#else /* !_KERNEL */
#include "cccust.h"
#endif
struct ccuser;
struct ccconn;
struct ccaddr;
struct ccport;
struct ccdata;
struct ccsig;
struct ccparty;
LIST_HEAD(ccuser_list, ccuser);
LIST_HEAD(ccconn_list, ccconn);
TAILQ_HEAD(ccaddr_list, ccaddr);
TAILQ_HEAD(ccport_list, ccport);
TAILQ_HEAD(ccsig_list, ccsig);
LIST_HEAD(ccparty_list, ccparty);
/*
* Private node data.
*/
struct ccdata {
struct ccuser_list user_list; /* instance list */
struct ccport_list port_list; /* list of ports */
struct ccconn_list orphaned_conns; /* list of connections */
struct ccsig_list sigs; /* current signals */
struct ccsig_list def_sigs; /* deferred signals */
struct ccsig_list free_sigs; /* free signals */
const struct cc_funcs *funcs;
uint32_t cookie; /* cookie generator */
u_int log; /* logging flags */
};
/* retrieve info on local ports */
struct atm_port_list *cc_get_local_port_info(struct ccdata *,
u_int, size_t *);
/* log */
#ifdef CCATM_DEBUG
#if defined(__GNUC__) && __GNUC__ < 3
#define cc_log(CC, FMT, ARGS...) do { \
(CC)->funcs->log("%s (data=%p): " FMT, __FUNCTION__, \
(CC) , ## ARGS); \
} while (0)
#else
#define cc_log(CC, FMT, ...) do { \
(CC)->funcs->log("%s (data=%p): " FMT, __func__, \
(CC), __VA_ARGS__); \
} while (0)
#endif
#else
#if defined(__GNUC__) && __GNUC__ < 3
#define cc_log(CC, FMT, ARGS...) do { } while (0)
#else
#define cc_log(CC, FMT, ...) do { } while (0)
#endif
#endif
/*
* structure to remember cookies for outstanding requests
* we also remember the request itself but don't use it.
*/
struct ccreq {
TAILQ_ENTRY(ccreq) link;
uint32_t cookie;
uint32_t req;
struct ccconn *conn;
};
TAILQ_HEAD(ccreq_list, ccreq);
/*
* Port data. Each port has one UNI stack below.
* The port number is in param.port. The number is assigned when the
* hook to the uni is connected. This hook has the name 'uni<port>'.
*/
struct ccport {
void *uarg; /* hook to UNI protocol */
struct ccdata *cc; /* back pointer to node */
enum {
CCPORT_STOPPED, /* halted */
CCPORT_RUNNING, /* ok */
} admin; /* admin status */
struct ccconn_list conn_list; /* list of connections */
struct ccaddr_list addr_list; /* list of network addresses */
struct atm_port_info param; /* parameters */
/* list of outstanding requests */
struct ccreq_list cookies;
TAILQ_ENTRY(ccport) node_link;
};
#ifdef CCATM_DEBUG
#if defined(__GNUC__) && __GNUC__ < 3
#define cc_port_log(P, FMT, ARGS...) do { \
(P)->cc->funcs->log("%s (port=%p/%u): " FMT, __FUNCTION__, \
(P), (P)->param.port , ## ARGS); \
} while (0)
#else
#define cc_port_log(P, FMT, ...) do { \
(P)->cc->funcs->log("%s (port=%p/%u): " FMT, __func__, \
(P), (P)->param.port, __VA_ARGS__); \
} while (0)
#endif
#else
#if defined(__GNUC__) && __GNUC__ < 3
#define cc_port_log(P, FMT, ARGS...) do { } while (0)
#else
#define cc_port_log(P, FMT, ...) do { } while (0)
#endif
#endif
#define CONN_STATES \
DEF(CONN_NULL) /* C0 */ \
DEF(CONN_OUT_PREPARING) /* C1 */ \
DEF(CONN_OUT_WAIT_CREATE) /* C2 */ \
DEF(CONN_OUT_WAIT_OK) /* C3 */ \
DEF(CONN_OUT_WAIT_CONF) /* C4 */ \
\
DEF(CONN_ACTIVE) /* C5 */ \
\
DEF(CONN_IN_PREPARING) /* C10 */ \
DEF(CONN_IN_WAITING) /* C21 */ \
DEF(CONN_IN_ARRIVED) /* C11 */ \
DEF(CONN_IN_WAIT_ACCEPT_OK) /* C12 */ \
DEF(CONN_IN_WAIT_COMPL) /* C13 */ \
\
DEF(CONN_REJ_WAIT_OK) /* C14 */ \
DEF(CONN_REL_IN_WAIT_OK) /* C15 */ \
DEF(CONN_REL_WAIT_OK) /* C20 */ \
\
DEF(CONN_AB_WAIT_REQ_OK) /* C33 */ \
DEF(CONN_AB_WAIT_RESP_OK) /* C34 */ \
DEF(CONN_AB_FLUSH_IND) /* C35 */ \
DEF(CONN_OUT_WAIT_DESTROY) /* C37 */
enum conn_state {
#define DEF(N) N,
CONN_STATES
#undef DEF
};
#define CONN_SIGS \
DEF(CONNECT_OUTGOING) /* U */ \
DEF(ARRIVAL) /* U */ \
DEF(RELEASE) /* U */ \
DEF(REJECT) /* U */ \
DEF(ACCEPT) /* U newuser */ \
DEF(ADD_PARTY) /* U ident */ \
DEF(DROP_PARTY) /* U ident */ \
DEF(USER_ABORT) /* U */ \
\
DEF(CREATED) /* P msg */ \
DEF(DESTROYED) /* P */ \
DEF(SETUP_CONFIRM) /* P msg */ \
DEF(SETUP_IND) /* P msg */ \
DEF(SETUP_COMPL) /* P msg */ \
DEF(PROC_IND) /* P msg */ \
DEF(ALERTING_IND) /* P msg */ \
DEF(REL_CONF) /* P msg */ \
DEF(REL_IND) /* P msg */ \
DEF(PARTY_CREATED) /* P msg */ \
DEF(PARTY_DESTROYED) /* P msg */ \
DEF(PARTY_ALERTING_IND) /* P msg */ \
DEF(PARTY_ADD_ACK_IND) /* P msg */ \
DEF(PARTY_ADD_REJ_IND) /* P msg */ \
DEF(DROP_PARTY_IND) /* P msg */ \
DEF(DROP_PARTY_ACK_IND) /* P msg */ \
\
DEF(OK) /* P msg */ \
DEF(ERROR) /* P msg */
enum conn_sig {
#define DEF(NAME) CONN_SIG_##NAME,
CONN_SIGS
#undef DEF
};
extern const char *const cc_conn_sigtab[];
/*
* This describes a connection and must be in sync with the UNI
* stack.
*/
struct ccconn {
enum conn_state state; /* API state of the connection */
struct ccdata *cc; /* owner node */
struct ccport *port; /* the port we belong to */
struct ccuser *user; /* user instance we belong to */
TAILQ_ENTRY(ccconn) connq_link; /* queue of the owner */
LIST_ENTRY(ccconn) port_link; /* link in list of port */
struct uni_cref cref;
uint8_t reason;
struct ccuser *acceptor;
/* attributes */
uint32_t blli_selector;
struct uni_ie_blli blli[UNI_NUM_IE_BLLI];
struct uni_ie_bearer bearer;
struct uni_ie_traffic traffic;
struct uni_ie_qos qos;
struct uni_ie_exqos exqos;
struct uni_ie_called called;
struct uni_ie_calledsub calledsub;
struct uni_ie_aal aal;
struct uni_ie_epref epref;
struct uni_ie_conned conned;
struct uni_ie_connedsub connedsub;
struct uni_ie_eetd eetd;
struct uni_ie_abrsetup abrsetup;
struct uni_ie_abradd abradd;
struct uni_ie_mdcr mdcr;
struct uni_ie_calling calling;
struct uni_ie_callingsub callingsub;
struct uni_ie_connid connid;
struct uni_ie_tns tns[UNI_NUM_IE_TNS];
struct uni_ie_atraffic atraffic;
struct uni_ie_mintraffic mintraffic;
struct uni_ie_cscope cscope;
struct uni_ie_bhli bhli;
/* bit mask of written attributes in A6 */
u_int dirty_attr;
struct uni_ie_cause cause[2];
struct ccparty_list parties;
};
/* dirty attribute mask values */
enum {
CCDIRTY_AAL = 0x0001,
CCDIRTY_BLLI = 0x0002,
CCDIRTY_CONNID = 0x0004,
CCDIRTY_NOTIFY = 0x0008, /* XXX */
CCDIRTY_EETD = 0x0010,
CCDIRTY_GIT = 0x0020, /* XXX */
CCDIRTY_UU = 0x0040, /* XXX */
CCDIRTY_TRAFFIC = 0x0080,
CCDIRTY_EXQOS = 0x0100,
CCDIRTY_ABRSETUP = 0x0200,
CCDIRTY_ABRADD = 0x0400,
};
/* set conn to new state */
void cc_conn_set_state(struct ccconn *, enum conn_state);
/* return string for state */
const char *cc_conn_state2str(u_int);
/* connect connection to user */
void cc_connect_to_user(struct ccconn *, struct ccuser *);
/* disconnect from the user */
void cc_disconnect_from_user(struct ccconn *);
/* abort the connection */
void cc_conn_abort(struct ccconn *, int);
/* destroy a connection */
void cc_conn_destroy(struct ccconn *);
/* create a connection */
struct ccconn *cc_conn_create(struct ccdata *);
/* assign to port */
void cc_conn_ins_port(struct ccconn *, struct ccport *);
/* remove from port */
void cc_conn_rem_port(struct ccconn *);
/* dispatch a connection to a user or reject it */
void cc_conn_dispatch(struct ccconn *);
/* disconnect from acceptor */
void cc_conn_reset_acceptor(struct ccconn *);
/* log on a connection */
#ifdef CCATM_DEBUG
#if defined(__GNUC__) && __GNUC__ < 3
#define cc_conn_log(C, FMT, ARGS...) do { \
(C)->cc->funcs->log("%s (conn=%p): " FMT, __FUNCTION__, \
(C) , ## ARGS); \
} while (0)
#else
#define cc_conn_log(C, FMT, ...) do { \
(C)->cc->funcs->log("%s (conn=%p): " FMT, __func__, \
(C), __VA_ARGS__); \
} while (0)
#endif
#else
#if defined(__GNUC__) && __GNUC__ < 3
#define cc_conn_log(C, FMT, ARGS...) do { } while (0)
#else
#define cc_conn_log(C, FMT, ...) do { } while (0)
#endif
#endif
/* handle signal to connection */
void cc_conn_sig_handle(struct ccconn *, enum conn_sig, void *arg, u_int iarg);
/*
* Mp connection parties
*/
#define PARTY_STATES \
DEF(NULL) /* 0 created */ \
DEF(ACTIVE) /* 1 active */ \
DEF(ADD_WAIT_CREATE) /* 2 wait for PARTY_CREATE */ \
DEF(ADD_WAIT_OK) /* 3 wait for OK for ADD.request */ \
DEF(ADD_WAIT_ACK) /* 4 wait for ADD.ack/rej */ \
DEF(DROP_WAIT_OK) /* 5 wait for OK for DROP.request */ \
DEF(DROP_WAIT_ACK) /* 6 wait for DROP.ack */ \
DEF(WAIT_DESTROY) /* 7 wait for destroy */ \
DEF(WAIT_SETUP_COMPL) /* 8 wait for setup.complete */ \
DEF(WAIT_DROP_ACK_OK) /* 9 wait for OK for DROP_ACK.request */\
DEF(WAIT_SETUP_CONF) /* 10 wait for setup.confirm */ \
DEF(ADD_DROP_WAIT_OK) /* 11 wait for ok to DROP.request */ \
DEF(ADD_DROPACK_WAIT_OK)/* 12 wait for ok to DROP_ACK.req */
enum party_state {
#define DEF(N) PARTY_##N,
PARTY_STATES
#undef DEF
};
struct ccparty {
struct ccconn *conn; /* owner */
LIST_ENTRY(ccparty) link;
enum party_state state;
struct uni_ie_called called;
struct uni_ie_epref epref;
};
/* set party to new state */
void cc_party_set_state(struct ccparty *, enum party_state);
/* return string for state */
const char *cc_party_state2str(u_int);
/* create new party */
struct ccparty *cc_party_create(struct ccconn *, u_int ident, u_int flag);
/* log on a party */
#ifdef CCATM_DEBUG
#if defined(__GNUC__) && __GNUC__ < 3
#define cc_party_log(P, FMT, ARGS...) do { \
(P)->conn->cc->funcs->log("%s (conn=%p, party=%p): " FMT, \
__FUNCTION__, (P)->conn, (P) , ## ARGS); \
} while (0)
#else
#define cc_party_log(P, FMT, ...) do { \
(P)->conn->cc->funcs->log("%s (conn=%p, party=%p): " FMT, \
__func__, (P)->conn, (P), __VA_ARGS__); \
} while (0)
#endif
#else
#if defined(__GNUC__) && __GNUC__ < 3
#define cc_party_log(P, FMT, ARGS...) do { } while (0)
#else
#define cc_party_log(P, FMT, ...) do { } while (0)
#endif
#endif
/*
* This is kind of a user socket, i.e. the entity managed towards the
* upper layer.
*/
#define USER_STATES \
DEF(USER_NULL) /* U0 none */ \
DEF(USER_OUT_PREPARING) /* U1 process set/query requests */ \
DEF(USER_OUT_WAIT_OK) /* U2 wait for OK to setup */ \
DEF(USER_OUT_WAIT_CONF) /* U3 wait for SETUP.confirm */ \
DEF(USER_ACTIVE) /* U4 A8-9-10/U10 */ \
DEF(USER_REL_WAIT) /* U5 wait for release to compl */ \
DEF(USER_IN_PREPARING) /* U6 set SAP */ \
DEF(USER_IN_WAITING) /* U7 wait and dispatch */ \
DEF(USER_IN_ARRIVED) /* U8 waiting for rej/acc */ \
DEF(USER_IN_WAIT_REJ) /* U9 wait for rejecting */ \
DEF(USER_IN_WAIT_ACC) /* U10 wait for accepting */ \
DEF(USER_IN_ACCEPTING) /* U11 wait for SETUP_complete */ \
DEF(USER_REL_WAIT_SCOMP)/* U12 wait for SETUP_complete */ \
DEF(USER_REL_WAIT_SCONF)/* U13 wait for SETUP.confirm */ \
DEF(USER_REL_WAIT_CONF) /* U14 wait for confirm */ \
DEF(USER_REL_WAIT_CONN) /* U15 wait for CONN_OK */
enum user_state {
#define DEF(N) N,
USER_STATES
#undef DEF
};
#define USER_SIGS \
DEF(PREPARE_OUTGOING) /* U */ \
DEF(CONNECT_OUTGOING) /* U msg */ \
DEF(PREPARE_INCOMING) /* U msg */ \
DEF(WAIT_ON_INCOMING) /* U msg */ \
DEF(REJECT_INCOMING) /* U msg */ \
DEF(ACCEPT_INCOMING) /* U msg */ \
DEF(CALL_RELEASE) /* U msg */ \
DEF(ADD_PARTY) /* U msg */ \
DEF(DROP_PARTY) /* U msg */ \
DEF(QUERY_ATTR) /* U msg */ \
DEF(QUERY_ATTR_X) /* U msg */ \
DEF(SET_ATTR) /* U msg */ \
DEF(SET_ATTR_X) /* U msg */ \
DEF(QUERY_STATE) /* U */ \
DEF(GET_LOCAL_PORT_INFO) /* U msg */ \
DEF(ABORT_CONNECTION) /* U msg */ \
\
DEF(CONNECT_OUTGOING_OK) /* */ \
DEF(CONNECT_OUTGOING_ERR) /* reason */ \
DEF(SETUP_CONFIRM) /* */ \
DEF(SETUP_IND) /* */ \
DEF(REJECT_OK) /* */ \
DEF(REJECT_ERR) /* reason */ \
DEF(ACCEPT_OK) /* */ \
DEF(ACCEPT_ERR) /* reason */ \
DEF(ACCEPTING) /* */ \
DEF(SETUP_COMPL) /* */ \
DEF(RELEASE_CONFIRM) /* */ \
DEF(RELEASE_ERR) /* reason */ \
DEF(ADD_PARTY_ERR) /* reason */ \
DEF(ADD_PARTY_OK) /* */ \
DEF(ADD_PARTY_ACK) /* leaf-ident */ \
DEF(ADD_PARTY_REJ) /* leaf-ident */ \
DEF(DROP_PARTY_ERR) /* reason */ \
DEF(DROP_PARTY_OK) /* */ \
DEF(DROP_PARTY_IND) /* leaf-ident */ \
enum user_sig {
#define DEF(NAME) USER_SIG_##NAME,
USER_SIGS
#undef DEF
};
extern const char *const cc_user_sigtab[];
struct ccuser {
LIST_ENTRY(ccuser) node_link; /* link in list of node */
enum user_state state; /* type of this instance */
struct ccdata *cc; /* the node */
void *uarg; /* the hook (if any) */
char name[ATM_EPNAMSIZ];
enum {
USER_P2P,
USER_ROOT,
USER_LEAF
} config; /* configuration */
struct uni_sap *sap; /* listening SAP */
u_int queue_max; /* maximum queue size */
u_int queue_act; /* actual queue size */
TAILQ_HEAD(,ccconn) connq; /* pending connections */
struct ccconn *accepted;
struct uni_ie_cause cause[2]; /* cause from connection */
u_int aborted;
};
/* set user to new state */
void cc_user_set_state(struct ccuser *, enum user_state);
/* return string for state */
const char *cc_user_state2str(u_int);
/* log on a user */
#ifdef CCATM_DEBUG
#if defined(__GNUC__) && __GNUC__ < 3
#define cc_user_log(U, FMT, ARGS...) do { \
(U)->cc->funcs->log("%s (user=%p): " FMT, __FUNCTION__, \
(U) , ## ARGS); \
} while (0)
#else
#define cc_user_log(U, FMT, ...) do { \
(U)->cc->funcs->log("%s (user=%p): " FMT, __func__, \
(U), __VA_ARGS__); \
} while (0)
#endif
#else
#if defined(__GNUC__) && __GNUC__ < 3
#define cc_user_log(U, FMT, ARGS...) do { } while (0)
#else
#define cc_user_log(U, FMT, ...) do { } while (0)
#endif
#endif
/* Handle a signal to this user */
void cc_user_sig_handle(struct ccuser *, enum user_sig, void *, u_int);
/*
* Addresses
*/
struct ccaddr {
TAILQ_ENTRY(ccaddr) port_link;
struct uni_addr addr;
};
/* signal to connection */
int cc_conn_sig(struct ccconn *, enum conn_sig, void *arg);
/* signal with message to connection */
int cc_conn_sig_msg(struct ccconn *, enum conn_sig, struct uni_msg *);
int cc_conn_sig_msg_nodef(struct ccconn *, enum conn_sig, struct uni_msg *);
/* response signal to connection */
int cc_conn_resp(struct ccconn *, enum conn_sig, u_int, u_int, u_int);
/* flush all signals to a given connection */
void cc_conn_sig_flush(struct ccconn *);
/* Queue a signal to this user */
int cc_user_sig(struct ccuser *, enum user_sig, void *, u_int);
/* Queue a signal with message to this user */
int cc_user_sig_msg(struct ccuser *, enum user_sig, struct uni_msg *);
/* Flush all signals to a given user */
void cc_user_sig_flush(struct ccuser *);
/* flush all signals */
void cc_sig_flush_all(struct ccdata *);
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