ng_l2cap_var.h revision 122634
1257251Skib/* 2257251Skib * ng_l2cap_var.h 3257251Skib * 4257251Skib * Copyright (c) 2001 Maksim Yevmenkin <m_evmenkin@yahoo.com> 5257251Skib * All rights reserved. 6257251Skib * 7257251Skib * Redistribution and use in source and binary forms, with or without 8257251Skib * modification, are permitted provided that the following conditions 9257251Skib * are met: 10257251Skib * 1. Redistributions of source code must retain the above copyright 11257251Skib * notice, this list of conditions and the following disclaimer. 12257251Skib * 2. Redistributions in binary form must reproduce the above copyright 13257251Skib * notice, this list of conditions and the following disclaimer in the 14257251Skib * documentation and/or other materials provided with the distribution. 15257251Skib * 16257251Skib * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17257251Skib * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18257251Skib * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19257251Skib * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20257251Skib * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21257251Skib * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22257251Skib * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23257251Skib * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24257251Skib * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25257251Skib * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26257251Skib * SUCH DAMAGE. 27257251Skib * 28257251Skib * $Id: ng_l2cap_var.h,v 1.2 2003/04/28 21:44:59 max Exp $ 29257251Skib * $FreeBSD: head/sys/netgraph/bluetooth/l2cap/ng_l2cap_var.h 122634 2003-11-14 03:45:29Z emax $ 30257251Skib */ 31257251Skib 32257251Skib#ifndef _NETGRAPH_L2CAP_VAR_H_ 33257251Skib#define _NETGRAPH_L2CAP_VAR_H_ 34257251Skib 35257251Skib/* MALLOC decalation */ 36257251Skib#ifdef NG_SEPARATE_MALLOC 37257251SkibMALLOC_DECLARE(M_NETGRAPH_L2CAP); 38257251Skib#else 39257251Skib#define M_NETGRAPH_L2CAP M_NETGRAPH 40257251Skib#endif /* NG_SEPARATE_MALLOC */ 41257251Skib 42257251Skib/* Debug */ 43257251Skib#define NG_L2CAP_ALERT if (l2cap->debug >= NG_L2CAP_ALERT_LEVEL) printf 44257251Skib#define NG_L2CAP_ERR if (l2cap->debug >= NG_L2CAP_ERR_LEVEL) printf 45257251Skib#define NG_L2CAP_WARN if (l2cap->debug >= NG_L2CAP_WARN_LEVEL) printf 46257251Skib#define NG_L2CAP_INFO if (l2cap->debug >= NG_L2CAP_INFO_LEVEL) printf 47257251Skib 48257251Skib/* Wrapper around m_pullup */ 49257251Skib#define NG_L2CAP_M_PULLUP(m, s) \ 50257251Skib do { \ 51257251Skib if ((m)->m_len < (s)) \ 52257251Skib (m) = m_pullup((m), (s)); \ 53257251Skib if ((m) == NULL) \ 54257251Skib NG_L2CAP_ALERT("%s: %s - m_pullup(%d) failed\n", \ 55257251Skib __func__, NG_NODE_NAME(l2cap->node), (s)); \ 56257251Skib } while (0) 57257251Skib 58257251Skib/* 59257251Skib * L2CAP signaling command ident's are assigned relative to the connection, 60257251Skib * because there is only one signaling channel (cid == 0x01) for every 61257251Skib * connection. So up to 254 (0xff - 0x01) L2CAP commands can be pending at the 62257251Skib * same time for the same connection. 63257251Skib */ 64257251Skib 65257251Skib#define NG_L2CAP_NULL_IDENT 0x00 /* DO NOT USE THIS IDENT */ 66257251Skib#define NG_L2CAP_FIRST_IDENT 0x01 /* dynamically alloc. (start) */ 67257251Skib#define NG_L2CAP_LAST_IDENT 0xff /* dynamically alloc. (end) */ 68257251Skib 69257251Skib/* 70257251Skib * L2CAP (Node private) 71257251Skib */ 72257251Skib 73257251Skibstruct ng_l2cap_con; 74257251Skibstruct ng_l2cap_chan; 75257251Skib 76257251Skibtypedef struct ng_l2cap { 77257251Skib node_p node; /* node ptr */ 78257251Skib 79257251Skib ng_l2cap_node_debug_ep debug; /* debug level */ 80257251Skib ng_l2cap_node_flags_ep flags; /* L2CAP node flags */ 81257251Skib ng_l2cap_node_auto_discon_ep discon_timo; /* auto discon. timeout */ 82257251Skib 83257251Skib u_int16_t pkt_size; /* max. ACL packet size */ 84257251Skib u_int16_t num_pkts; /* out queue size */ 85257251Skib bdaddr_t bdaddr; /* unit BDADDR */ 86257251Skib 87257251Skib hook_p hci; /* HCI downstream hook */ 88257251Skib hook_p l2c; /* L2CAP upstream hook */ 89257251Skib hook_p ctl; /* control hook */ 90257251Skib 91257251Skib LIST_HEAD(, ng_l2cap_con) con_list; /* ACL connections */ 92257251Skib 93257251Skib u_int16_t cid; /* last allocated CID */ 94257251Skib LIST_HEAD(, ng_l2cap_chan) chan_list; /* L2CAP channels */ 95259512Skib} ng_l2cap_t; 96259512Skibtypedef ng_l2cap_t * ng_l2cap_p; 97257251Skib 98259512Skib/* 99257251Skib * L2CAP connection descriptor 100257251Skib */ 101257251Skib 102257251Skibstruct ng_l2cap_cmd; 103257251Skib 104257251Skibtypedef struct ng_l2cap_con { 105257251Skib ng_l2cap_p l2cap; /* pointer to L2CAP */ 106259512Skib 107259512Skib u_int16_t state; /* ACL connection state */ 108259512Skib u_int16_t flags; /* ACL connection flags */ 109257251Skib 110257251Skib int32_t refcnt; /* reference count */ 111257251Skib 112257251Skib bdaddr_t remote; /* remote unit address */ 113257251Skib u_int16_t con_handle; /* ACL connection handle */ 114257251Skib struct callout_handle con_timo; /* connection timeout */ 115257251Skib 116257251Skib u_int8_t ident; /* last allocated ident */ 117257251Skib TAILQ_HEAD(, ng_l2cap_cmd) cmd_list; /* pending L2CAP cmds */ 118257251Skib 119257251Skib struct mbuf *tx_pkt; /* xmitted L2CAP packet */ 120257251Skib int pending; /* num. of pending pkts */ 121257251Skib 122257251Skib struct mbuf *rx_pkt; /* received L2CAP packet */ 123257251Skib int rx_pkt_len; /* packet len. so far */ 124257251Skib 125257251Skib LIST_ENTRY(ng_l2cap_con) next; /* link */ 126257251Skib} ng_l2cap_con_t; 127257251Skibtypedef ng_l2cap_con_t * ng_l2cap_con_p; 128257251Skib 129257251Skib/* 130257251Skib * L2CAP channel descriptor 131257251Skib */ 132257251Skib 133257251Skibtypedef struct ng_l2cap_chan { 134257251Skib ng_l2cap_con_p con; /* pointer to connection */ 135257251Skib 136257251Skib u_int16_t state; /* channel state */ 137257251Skib 138257251Skib u_int8_t cfg_state; /* configuration state */ 139257251Skib#define NG_L2CAP_CFG_IN (1 << 0) /* incoming cfg path done */ 140257251Skib#define NG_L2CAP_CFG_OUT (1 << 1) /* outgoing cfg path done */ 141257251Skib#define NG_L2CAP_CFG_BOTH (NG_L2CAP_CFG_IN|NG_L2CAP_CFG_OUT) 142257251Skib 143257251Skib u_int8_t ident; /* last L2CAP req. ident */ 144257251Skib 145257251Skib u_int16_t psm; /* channel PSM */ 146257251Skib u_int16_t scid; /* source channel ID */ 147257251Skib u_int16_t dcid; /* destination channel ID */ 148257251Skib 149257251Skib u_int16_t imtu; /* incoming channel MTU */ 150257251Skib ng_l2cap_flow_t iflow; /* incoming flow control */ 151257251Skib 152257251Skib u_int16_t omtu; /* outgoing channel MTU */ 153257251Skib ng_l2cap_flow_t oflow; /* outgoing flow control */ 154257251Skib 155257251Skib u_int16_t flush_timo; /* flush timeout */ 156257251Skib u_int16_t link_timo; /* link timeout */ 157257251Skib 158257251Skib LIST_ENTRY(ng_l2cap_chan) next; /* link */ 159257251Skib} ng_l2cap_chan_t; 160257251Skibtypedef ng_l2cap_chan_t * ng_l2cap_chan_p; 161257251Skib 162257251Skib/* 163257251Skib * L2CAP command descriptor 164257251Skib */ 165257251Skib 166257251Skibtypedef struct ng_l2cap_cmd { 167257251Skib ng_l2cap_con_p con; /* L2CAP connection */ 168257251Skib ng_l2cap_chan_p ch; /* L2CAP channel */ 169257251Skib 170257251Skib u_int16_t flags; /* command flags */ 171257251Skib#define NG_L2CAP_CMD_PENDING (1 << 0) /* command is pending */ 172257251Skib 173257251Skib u_int8_t code; /* L2CAP command opcode */ 174257251Skib u_int8_t ident; /* L2CAP command ident */ 175257251Skib u_int32_t token; /* L2CA message token */ 176257251Skib 177257251Skib struct callout_handle timo; /* RTX/ERTX timeout */ 178259512Skib 179259512Skib struct mbuf *aux; /* optional data */ 180259512Skib 181257251Skib TAILQ_ENTRY(ng_l2cap_cmd) next; /* link */ 182257251Skib} ng_l2cap_cmd_t; 183257251Skibtypedef ng_l2cap_cmd_t * ng_l2cap_cmd_p; 184257251Skib 185257251Skib#endif /* ndef _NETGRAPH_L2CAP_VAR_H_ */ 186257251Skib 187257251Skib