/* * ng_l2cap_var.h */ /*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 2001 Maksim Yevmenkin <m_evmenkin@yahoo.com> * All rights reserved. * * 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. * * $Id: ng_l2cap_var.h,v 1.2 2003/04/28 21:44:59 max Exp $ */ #ifndef _NETGRAPH_L2CAP_VAR_H_ #define _NETGRAPH_L2CAP_VAR_H_ /* MALLOC decalation */ #ifdef NG_SEPARATE_MALLOC MALLOC_DECLARE(M_NETGRAPH_L2CAP); #else #define M_NETGRAPH_L2CAP M_NETGRAPH #endif /* NG_SEPARATE_MALLOC */ /* Debug */ #define NG_L2CAP_ALERT if (l2cap->debug >= NG_L2CAP_ALERT_LEVEL) printf #define NG_L2CAP_ERR if (l2cap->debug >= NG_L2CAP_ERR_LEVEL) printf #define NG_L2CAP_WARN if (l2cap->debug >= NG_L2CAP_WARN_LEVEL) printf #define NG_L2CAP_INFO if (l2cap->debug >= NG_L2CAP_INFO_LEVEL) printf /* Wrapper around m_pullup */ #define NG_L2CAP_M_PULLUP(m, s) \ do { \ if ((m)->m_len < (s)) \ (m) = m_pullup((m), (s)); \ if ((m) == NULL) \ NG_L2CAP_ALERT("%s: %s - m_pullup(%zd) failed\n", \ __func__, NG_NODE_NAME(l2cap->node), (s)); \ } while (0) /* * L2CAP signaling command ident's are assigned relative to the connection, * because there is only one signaling channel (cid == 0x01) for every * connection. So up to 254 (0xff - 0x01) L2CAP commands can be pending at the * same time for the same connection. */ #define NG_L2CAP_NULL_IDENT 0x00 /* DO NOT USE THIS IDENT */ #define NG_L2CAP_FIRST_IDENT 0x01 /* dynamically alloc. (start) */ #define NG_L2CAP_LAST_IDENT 0xff /* dynamically alloc. (end) */ /* * L2CAP (Node private) */ struct ng_l2cap_con; struct ng_l2cap_chan; typedef struct ng_l2cap { node_p node; /* node ptr */ ng_l2cap_node_debug_ep debug; /* debug level */ ng_l2cap_node_flags_ep flags; /* L2CAP node flags */ ng_l2cap_node_auto_discon_ep discon_timo; /* auto discon. timeout */ u_int16_t pkt_size; /* max. ACL packet size */ u_int16_t num_pkts; /* out queue size */ bdaddr_t bdaddr; /* unit BDADDR */ hook_p hci; /* HCI downstream hook */ hook_p l2c; /* L2CAP upstream hook */ hook_p ctl; /* control hook */ LIST_HEAD(, ng_l2cap_con) con_list; /* ACL connections */ u_int16_t cid; /* last allocated CID */ u_int16_t lecid; /* last allocated CID for LE */ LIST_HEAD(, ng_l2cap_chan) chan_list; /* L2CAP channels */ } ng_l2cap_t; typedef ng_l2cap_t * ng_l2cap_p; /* * L2CAP connection descriptor */ struct ng_l2cap_cmd; typedef struct ng_l2cap_con { ng_l2cap_p l2cap; /* pointer to L2CAP */ u_int16_t state; /* ACL connection state */ u_int16_t flags; /* ACL connection flags */ int32_t refcnt; /* reference count */ bdaddr_t remote; /* remote unit address */ u_int16_t con_handle; /* ACL connection handle */ struct callout con_timo; /* connection timeout */ u_int8_t ident; /* last allocated ident */ uint8_t linktype; uint8_t encryption; TAILQ_HEAD(, ng_l2cap_cmd) cmd_list; /* pending L2CAP cmds */ struct mbuf *tx_pkt; /* xmitted L2CAP packet */ int pending; /* num. of pending pkts */ struct mbuf *rx_pkt; /* received L2CAP packet */ int rx_pkt_len; /* packet len. so far */ LIST_ENTRY(ng_l2cap_con) next; /* link */ } ng_l2cap_con_t; typedef ng_l2cap_con_t * ng_l2cap_con_p; /* * L2CAP channel descriptor */ typedef struct ng_l2cap_chan { ng_l2cap_con_p con; /* pointer to connection */ u_int16_t state; /* channel state */ u_int8_t cfg_state; /* configuration state */ #define NG_L2CAP_CFG_IN (1 << 0) /* incoming cfg path done */ #define NG_L2CAP_CFG_OUT (1 << 1) /* outgoing cfg path done */ #define NG_L2CAP_CFG_BOTH (NG_L2CAP_CFG_IN|NG_L2CAP_CFG_OUT) u_int8_t ident; /* last L2CAP req. ident */ u_int16_t psm; /* channel PSM */ u_int16_t scid; /* source channel ID */ u_int16_t dcid; /* destination channel ID */ uint16_t idtype; u_int16_t imtu; /* incoming channel MTU */ ng_l2cap_flow_t iflow; /* incoming flow control */ u_int16_t omtu; /* outgoing channel MTU */ ng_l2cap_flow_t oflow; /* outgoing flow control */ u_int16_t flush_timo; /* flush timeout */ u_int16_t link_timo; /* link timeout */ LIST_ENTRY(ng_l2cap_chan) next; /* link */ } ng_l2cap_chan_t; typedef ng_l2cap_chan_t * ng_l2cap_chan_p; /* * L2CAP command descriptor */ typedef struct ng_l2cap_cmd { ng_l2cap_con_p con; /* L2CAP connection */ ng_l2cap_chan_p ch; /* L2CAP channel */ u_int16_t flags; /* command flags */ #define NG_L2CAP_CMD_PENDING (1 << 0) /* command is pending */ u_int8_t code; /* L2CAP command opcode */ u_int8_t ident; /* L2CAP command ident */ u_int32_t token; /* L2CA message token */ struct callout timo; /* RTX/ERTX timeout */ struct mbuf *aux; /* optional data */ TAILQ_ENTRY(ng_l2cap_cmd) next; /* link */ } ng_l2cap_cmd_t; typedef ng_l2cap_cmd_t * ng_l2cap_cmd_p; #endif /* ndef _NETGRAPH_L2CAP_VAR_H_ */
