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/*
* ng_l2cap_cmds.h
*/
/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 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_cmds.h,v 1.4 2003/04/01 18:15:26 max Exp $
* $FreeBSD$
*/
#ifndef _NETGRAPH_L2CAP_CMDS_H_
#define _NETGRAPH_L2CAP_CMDS_H_
/******************************************************************************
******************************************************************************
** L2CAP to L2CAP signaling command macros
******************************************************************************
******************************************************************************/
/*
* Note: All L2CAP implementations are required to support minimal signaling
* MTU of 48 bytes. In order to simplify things we will send one command
* per one L2CAP packet. Given evrything above we can assume that one
* signaling packet will fit into single mbuf.
*/
/* L2CAP_CommandRej */
#define _ng_l2cap_cmd_rej(_m, _ident, _reason, _mtu, _scid, _dcid) \
do { \
struct _cmd_rej { \
ng_l2cap_cmd_hdr_t hdr; \
ng_l2cap_cmd_rej_cp param; \
ng_l2cap_cmd_rej_data_t data; \
} __attribute__ ((packed)) *c = NULL; \
\
MGETHDR((_m), M_NOWAIT, MT_DATA); \
if ((_m) == NULL) \
break; \
\
c = mtod((_m), struct _cmd_rej *); \
c->hdr.code = NG_L2CAP_CMD_REJ; \
c->hdr.ident = (_ident); \
c->hdr.length = sizeof(c->param); \
\
c->param.reason = htole16((_reason)); \
\
if ((_reason) == NG_L2CAP_REJ_MTU_EXCEEDED) { \
c->data.mtu.mtu = htole16((_mtu)); \
c->hdr.length += sizeof(c->data.mtu); \
} else if ((_reason) == NG_L2CAP_REJ_INVALID_CID) { \
c->data.cid.scid = htole16((_scid)); \
c->data.cid.dcid = htole16((_dcid)); \
c->hdr.length += sizeof(c->data.cid); \
} \
\
(_m)->m_pkthdr.len = (_m)->m_len = sizeof(c->hdr) + \
c->hdr.length; \
\
c->hdr.length = htole16(c->hdr.length); \
} while (0)
/* L2CAP_ConnectReq */
#define _ng_l2cap_con_req(_m, _ident, _psm, _scid) \
do { \
struct _con_req { \
ng_l2cap_cmd_hdr_t hdr; \
ng_l2cap_con_req_cp param; \
} __attribute__ ((packed)) *c = NULL; \
\
MGETHDR((_m), M_NOWAIT, MT_DATA); \
if ((_m) == NULL) \
break; \
\
(_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \
\
c = mtod((_m), struct _con_req *); \
c->hdr.code = NG_L2CAP_CON_REQ; \
c->hdr.ident = (_ident); \
c->hdr.length = htole16(sizeof(c->param)); \
\
c->param.psm = htole16((_psm)); \
c->param.scid = htole16((_scid)); \
} while (0)
/* L2CAP_ConnectRsp */
#define _ng_l2cap_con_rsp(_m, _ident, _dcid, _scid, _result, _status) \
do { \
struct _con_rsp { \
ng_l2cap_cmd_hdr_t hdr; \
ng_l2cap_con_rsp_cp param; \
} __attribute__ ((packed)) *c = NULL; \
\
MGETHDR((_m), M_NOWAIT, MT_DATA); \
if ((_m) == NULL) \
break; \
\
(_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \
\
c = mtod((_m), struct _con_rsp *); \
c->hdr.code = NG_L2CAP_CON_RSP; \
c->hdr.ident = (_ident); \
c->hdr.length = htole16(sizeof(c->param)); \
\
c->param.dcid = htole16((_dcid)); \
c->param.scid = htole16((_scid)); \
c->param.result = htole16((_result)); \
c->param.status = htole16((_status)); \
} while (0)
/* L2CAP_ConfigReq */
#define _ng_l2cap_cfg_req(_m, _ident, _dcid, _flags, _data) \
do { \
struct _cfg_req { \
ng_l2cap_cmd_hdr_t hdr; \
ng_l2cap_cfg_req_cp param; \
} __attribute__ ((packed)) *c = NULL; \
\
MGETHDR((_m), M_NOWAIT, MT_DATA); \
if ((_m) == NULL) { \
NG_FREE_M((_data)); \
break; \
} \
\
(_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \
\
c = mtod((_m), struct _cfg_req *); \
c->hdr.code = NG_L2CAP_CFG_REQ; \
c->hdr.ident = (_ident); \
c->hdr.length = sizeof(c->param); \
\
c->param.dcid = htole16((_dcid)); \
c->param.flags = htole16((_flags)); \
if ((_data) != NULL) { \
int l = (_data)->m_pkthdr.len; \
\
m_cat((_m), (_data)); \
c->hdr.length += l; \
(_m)->m_pkthdr.len += l; \
} \
\
c->hdr.length = htole16(c->hdr.length); \
} while (0)
/* L2CAP_ConfigRsp */
#define _ng_l2cap_cfg_rsp(_m, _ident, _scid, _flags, _result, _data) \
do { \
struct _cfg_rsp { \
ng_l2cap_cmd_hdr_t hdr; \
ng_l2cap_cfg_rsp_cp param; \
} __attribute__ ((packed)) *c = NULL; \
\
MGETHDR((_m), M_NOWAIT, MT_DATA); \
if ((_m) == NULL) { \
NG_FREE_M((_data)); \
break; \
} \
\
(_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \
\
c = mtod((_m), struct _cfg_rsp *); \
c->hdr.code = NG_L2CAP_CFG_RSP; \
c->hdr.ident = (_ident); \
c->hdr.length = sizeof(c->param); \
\
c->param.scid = htole16((_scid)); \
c->param.flags = htole16((_flags)); \
c->param.result = htole16((_result)); \
if ((_data) != NULL) { \
int l = (_data)->m_pkthdr.len; \
\
m_cat((_m), (_data)); \
c->hdr.length += l; \
(_m)->m_pkthdr.len += l; \
} \
\
c->hdr.length = htole16(c->hdr.length); \
} while (0)
#define _ng_l2cap_cmd_urs(_m, _ident, _result) \
do { \
struct _cmd_urs{ \
ng_l2cap_cmd_hdr_t hdr; \
uint16_t result; \
} __attribute__ ((packed)) *c = NULL; \
\
MGETHDR((_m), M_NOWAIT, MT_DATA); \
\
(_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \
\
c = mtod((_m), struct _cmd_urs *); \
c->hdr.code = NG_L2CAP_CMD_PARAM_UPDATE_RESPONSE; \
c->hdr.ident = (_ident); \
c->hdr.length = sizeof(c->result); \
\
c->result = htole16((_result)); \
} while (0)
/* Build configuration options */
#define _ng_l2cap_build_cfg_options(_m, _mtu, _flush_timo, _flow) \
do { \
u_int8_t *p = NULL; \
\
MGETHDR((_m), M_NOWAIT, MT_DATA); \
if ((_m) == NULL) \
break; \
\
(_m)->m_pkthdr.len = (_m)->m_len = 0; \
p = mtod((_m), u_int8_t *); \
\
if ((_mtu) != NULL) { \
struct _cfg_opt_mtu { \
ng_l2cap_cfg_opt_t hdr; \
u_int16_t val; \
} __attribute__ ((packed)) *o = NULL; \
\
o = (struct _cfg_opt_mtu *) p; \
o->hdr.type = NG_L2CAP_OPT_MTU; \
o->hdr.length = sizeof(o->val); \
o->val = htole16(*(u_int16_t *)(_mtu)); \
\
(_m)->m_pkthdr.len += sizeof(*o); \
p += sizeof(*o); \
} \
\
if ((_flush_timo) != NULL) { \
struct _cfg_opt_flush { \
ng_l2cap_cfg_opt_t hdr; \
u_int16_t val; \
} __attribute__ ((packed)) *o = NULL; \
\
o = (struct _cfg_opt_flush *) p; \
o->hdr.type = NG_L2CAP_OPT_FLUSH_TIMO; \
o->hdr.length = sizeof(o->val); \
o->val = htole16(*(u_int16_t *)(_flush_timo)); \
\
(_m)->m_pkthdr.len += sizeof(*o); \
p += sizeof(*o); \
} \
\
if ((_flow) != NULL) { \
struct _cfg_opt_flow { \
ng_l2cap_cfg_opt_t hdr; \
ng_l2cap_flow_t val; \
} __attribute__ ((packed)) *o = NULL; \
\
o = (struct _cfg_opt_flow *) p; \
o->hdr.type = NG_L2CAP_OPT_QOS; \
o->hdr.length = sizeof(o->val); \
o->val.flags = ((ng_l2cap_flow_p)(_flow))->flags; \
o->val.service_type = ((ng_l2cap_flow_p) \
(_flow))->service_type; \
o->val.token_rate = \
htole32(((ng_l2cap_flow_p)(_flow))->token_rate);\
o->val.token_bucket_size = \
htole32(((ng_l2cap_flow_p) \
(_flow))->token_bucket_size); \
o->val.peak_bandwidth = \
htole32(((ng_l2cap_flow_p) \
(_flow))->peak_bandwidth); \
o->val.latency = htole32(((ng_l2cap_flow_p) \
(_flow))->latency); \
o->val.delay_variation = \
htole32(((ng_l2cap_flow_p) \
(_flow))->delay_variation); \
\
(_m)->m_pkthdr.len += sizeof(*o); \
} \
\
(_m)->m_len = (_m)->m_pkthdr.len; \
} while (0)
/* L2CAP_DisconnectReq */
#define _ng_l2cap_discon_req(_m, _ident, _dcid, _scid) \
do { \
struct _discon_req { \
ng_l2cap_cmd_hdr_t hdr; \
ng_l2cap_discon_req_cp param; \
} __attribute__ ((packed)) *c = NULL; \
\
MGETHDR((_m), M_NOWAIT, MT_DATA); \
if ((_m) == NULL) \
break; \
\
(_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \
\
c = mtod((_m), struct _discon_req *); \
c->hdr.code = NG_L2CAP_DISCON_REQ; \
c->hdr.ident = (_ident); \
c->hdr.length = htole16(sizeof(c->param)); \
\
c->param.dcid = htole16((_dcid)); \
c->param.scid = htole16((_scid)); \
} while (0)
/* L2CA_DisconnectRsp */
#define _ng_l2cap_discon_rsp(_m, _ident, _dcid, _scid) \
do { \
struct _discon_rsp { \
ng_l2cap_cmd_hdr_t hdr; \
ng_l2cap_discon_rsp_cp param; \
} __attribute__ ((packed)) *c = NULL; \
\
MGETHDR((_m), M_NOWAIT, MT_DATA); \
if ((_m) == NULL) \
break; \
\
(_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \
\
c = mtod((_m), struct _discon_rsp *); \
c->hdr.code = NG_L2CAP_DISCON_RSP; \
c->hdr.ident = (_ident); \
c->hdr.length = htole16(sizeof(c->param)); \
\
c->param.dcid = htole16((_dcid)); \
c->param.scid = htole16((_scid)); \
} while (0)
/* L2CAP_EchoReq */
#define _ng_l2cap_echo_req(_m, _ident, _data, _size) \
do { \
ng_l2cap_cmd_hdr_t *c = NULL; \
\
MGETHDR((_m), M_NOWAIT, MT_DATA); \
if ((_m) == NULL) \
break; \
\
(_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \
\
c = mtod((_m), ng_l2cap_cmd_hdr_t *); \
c->code = NG_L2CAP_ECHO_REQ; \
c->ident = (_ident); \
c->length = 0; \
\
if ((_data) != NULL) { \
m_copyback((_m), sizeof(*c), (_size), (_data)); \
c->length += (_size); \
} \
\
c->length = htole16(c->length); \
} while (0)
/* L2CAP_InfoReq */
#define _ng_l2cap_info_req(_m, _ident, _type) \
do { \
struct _info_req { \
ng_l2cap_cmd_hdr_t hdr; \
ng_l2cap_info_req_cp param; \
} __attribute__ ((packed)) *c = NULL; \
\
MGETHDR((_m), M_NOWAIT, MT_DATA); \
if ((_m) == NULL) \
break; \
\
(_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \
\
c = mtod((_m), struct _info_req *); \
c->hdr.code = NG_L2CAP_INFO_REQ; \
c->hdr.ident = (_ident); \
c->hdr.length = htole16(sizeof(c->param)); \
\
c->param.type = htole16((_type)); \
} while (0)
/* L2CAP_InfoRsp */
#define _ng_l2cap_info_rsp(_m, _ident, _type, _result, _mtu) \
do { \
struct _info_rsp { \
ng_l2cap_cmd_hdr_t hdr; \
ng_l2cap_info_rsp_cp param; \
ng_l2cap_info_rsp_data_t data; \
} __attribute__ ((packed)) *c = NULL; \
\
MGETHDR((_m), M_NOWAIT, MT_DATA); \
if ((_m) == NULL) \
break; \
\
c = mtod((_m), struct _info_rsp *); \
c->hdr.code = NG_L2CAP_INFO_RSP; \
c->hdr.ident = (_ident); \
c->hdr.length = sizeof(c->param); \
\
c->param.type = htole16((_type)); \
c->param.result = htole16((_result)); \
\
if ((_result) == NG_L2CAP_SUCCESS) { \
switch ((_type)) { \
case NG_L2CAP_CONNLESS_MTU: \
c->data.mtu.mtu = htole16((_mtu)); \
c->hdr.length += sizeof((c->data.mtu.mtu)); \
break; \
} \
} \
\
(_m)->m_pkthdr.len = (_m)->m_len = sizeof(c->hdr) + \
c->hdr.length; \
\
c->hdr.length = htole16(c->hdr.length); \
} while (0)
void ng_l2cap_con_wakeup (ng_l2cap_con_p);
void ng_l2cap_con_fail (ng_l2cap_con_p, u_int16_t);
void ng_l2cap_process_command_timeout (node_p, hook_p, void *, int);
#endif /* ndef _NETGRAPH_L2CAP_CMDS_H_ */
|
