2 * Copyright (C) 2011 Intel Corporation. All rights reserved.
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the
16 * Free Software Foundation, Inc.,
17 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21 LLCP_CONNECTED
= 1, /* wait_for_packet() wants that */
27 #define LLCP_DEFAULT_LTO 100
28 #define LLCP_DEFAULT_RW 1
29 #define LLCP_DEFAULT_MIU 128
31 #define LLCP_MAX_LTO 0xff
32 #define LLCP_MAX_RW 15
33 #define LLCP_MAX_MIUX 0x7ff
35 #define LLCP_WKS_NUM_SAP 16
36 #define LLCP_SDP_NUM_SAP 16
37 #define LLCP_LOCAL_NUM_SAP 32
38 #define LLCP_LOCAL_SAP_OFFSET (LLCP_WKS_NUM_SAP + LLCP_SDP_NUM_SAP)
39 #define LLCP_MAX_SAP (LLCP_WKS_NUM_SAP + LLCP_SDP_NUM_SAP + LLCP_LOCAL_NUM_SAP)
40 #define LLCP_SDP_UNBOUND (LLCP_MAX_SAP + 1)
44 struct llcp_sock_list
{
45 struct hlist_head head
;
49 struct nfc_llcp_local
{
50 struct list_head list
;
55 struct mutex sdp_lock
;
57 struct timer_list link_timer
;
58 struct sk_buff_head tx_queue
;
59 struct workqueue_struct
*tx_wq
;
60 struct work_struct tx_work
;
61 struct workqueue_struct
*rx_wq
;
62 struct work_struct rx_work
;
63 struct sk_buff
*rx_pending
;
64 struct workqueue_struct
*timeout_wq
;
65 struct work_struct timeout_work
;
70 unsigned long local_wks
; /* Well known services */
71 unsigned long local_sdp
; /* Local services */
72 unsigned long local_sap
; /* Local SAPs, not available for discovery */
73 atomic_t local_sdp_cnt
[LLCP_SDP_NUM_SAP
];
76 u8 gb
[NFC_MAX_GT_LEN
];
80 u8 remote_gb
[NFC_MAX_GT_LEN
];
90 struct llcp_sock_list sockets
;
91 struct llcp_sock_list connecting_sockets
;
94 struct nfc_llcp_sock
{
97 struct nfc_llcp_local
*local
;
101 /* Link parameters */
105 size_t service_name_len
;
115 /* Is the remote peer ready to receive */
118 /* Reserved source SAP */
121 struct sk_buff_head tx_queue
;
122 struct sk_buff_head tx_pending_queue
;
123 struct sk_buff_head tx_backlog_queue
;
125 struct list_head accept_queue
;
129 #define nfc_llcp_sock(sk) ((struct nfc_llcp_sock *) (sk))
130 #define nfc_llcp_dev(sk) (nfc_llcp_sock((sk))->dev)
132 #define LLCP_HEADER_SIZE 2
133 #define LLCP_SEQUENCE_SIZE 1
135 /* LLCP versions: 1.1 is 1.0 plus SDP */
136 #define LLCP_VERSION_10 0x10
137 #define LLCP_VERSION_11 0x11
140 #define LLCP_PDU_SYMM 0x0
141 #define LLCP_PDU_PAX 0x1
142 #define LLCP_PDU_AGF 0x2
143 #define LLCP_PDU_UI 0x3
144 #define LLCP_PDU_CONNECT 0x4
145 #define LLCP_PDU_DISC 0x5
146 #define LLCP_PDU_CC 0x6
147 #define LLCP_PDU_DM 0x7
148 #define LLCP_PDU_FRMR 0x8
149 #define LLCP_PDU_SNL 0x9
150 #define LLCP_PDU_I 0xc
151 #define LLCP_PDU_RR 0xd
152 #define LLCP_PDU_RNR 0xe
154 /* Parameters TLV types */
155 #define LLCP_TLV_VERSION 0x1
156 #define LLCP_TLV_MIUX 0x2
157 #define LLCP_TLV_WKS 0x3
158 #define LLCP_TLV_LTO 0x4
159 #define LLCP_TLV_RW 0x5
160 #define LLCP_TLV_SN 0x6
161 #define LLCP_TLV_OPT 0x7
162 #define LLCP_TLV_SDREQ 0x8
163 #define LLCP_TLV_SDRES 0x9
164 #define LLCP_TLV_MAX 0xa
166 /* Well known LLCP SAP */
167 #define LLCP_SAP_SDP 0x1
168 #define LLCP_SAP_IP 0x2
169 #define LLCP_SAP_OBEX 0x3
170 #define LLCP_SAP_SNEP 0x4
171 #define LLCP_SAP_MAX 0xff
173 /* Disconnection reason code */
174 #define LLCP_DM_DISC 0x00
175 #define LLCP_DM_NOCONN 0x01
176 #define LLCP_DM_NOBOUND 0x02
177 #define LLCP_DM_REJ 0x03
180 void nfc_llcp_sock_link(struct llcp_sock_list
*l
, struct sock
*s
);
181 void nfc_llcp_sock_unlink(struct llcp_sock_list
*l
, struct sock
*s
);
182 struct nfc_llcp_local
*nfc_llcp_find_local(struct nfc_dev
*dev
);
183 struct nfc_llcp_local
*nfc_llcp_local_get(struct nfc_llcp_local
*local
);
184 int nfc_llcp_local_put(struct nfc_llcp_local
*local
);
185 u8
nfc_llcp_get_sdp_ssap(struct nfc_llcp_local
*local
,
186 struct nfc_llcp_sock
*sock
);
187 u8
nfc_llcp_get_local_ssap(struct nfc_llcp_local
*local
);
188 void nfc_llcp_put_ssap(struct nfc_llcp_local
*local
, u8 ssap
);
189 int nfc_llcp_queue_i_frames(struct nfc_llcp_sock
*sock
);
192 struct sock
*nfc_llcp_sock_alloc(struct socket
*sock
, int type
, gfp_t gfp
);
193 void nfc_llcp_sock_free(struct nfc_llcp_sock
*sock
);
194 void nfc_llcp_accept_unlink(struct sock
*sk
);
195 void nfc_llcp_accept_enqueue(struct sock
*parent
, struct sock
*sk
);
196 struct sock
*nfc_llcp_accept_dequeue(struct sock
*sk
, struct socket
*newsock
);
199 int nfc_llcp_parse_gb_tlv(struct nfc_llcp_local
*local
,
200 u8
*tlv_array
, u16 tlv_array_len
);
201 int nfc_llcp_parse_connection_tlv(struct nfc_llcp_sock
*sock
,
202 u8
*tlv_array
, u16 tlv_array_len
);
205 void nfc_llcp_recv(void *data
, struct sk_buff
*skb
, int err
);
206 u8
*nfc_llcp_build_tlv(u8 type
, u8
*value
, u8 value_length
, u8
*tlv_length
);
207 void nfc_llcp_recv(void *data
, struct sk_buff
*skb
, int err
);
208 int nfc_llcp_disconnect(struct nfc_llcp_sock
*sock
);
209 int nfc_llcp_send_symm(struct nfc_dev
*dev
);
210 int nfc_llcp_send_connect(struct nfc_llcp_sock
*sock
);
211 int nfc_llcp_send_cc(struct nfc_llcp_sock
*sock
);
212 int nfc_llcp_send_dm(struct nfc_llcp_local
*local
, u8 ssap
, u8 dsap
, u8 reason
);
213 int nfc_llcp_send_disconnect(struct nfc_llcp_sock
*sock
);
214 int nfc_llcp_send_i_frame(struct nfc_llcp_sock
*sock
,
215 struct msghdr
*msg
, size_t len
);
216 int nfc_llcp_send_rr(struct nfc_llcp_sock
*sock
);
219 int __init
nfc_llcp_sock_init(void);
220 void nfc_llcp_sock_exit(void);