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)
43 struct llcp_sock_list
{
44 struct hlist_head head
;
48 struct nfc_llcp_local
{
49 struct list_head list
;
54 struct mutex sdp_lock
;
56 struct timer_list link_timer
;
57 struct sk_buff_head tx_queue
;
58 struct workqueue_struct
*tx_wq
;
59 struct work_struct tx_work
;
60 struct workqueue_struct
*rx_wq
;
61 struct work_struct rx_work
;
62 struct sk_buff
*rx_pending
;
63 struct workqueue_struct
*timeout_wq
;
64 struct work_struct timeout_work
;
69 unsigned long local_wks
; /* Well known services */
70 unsigned long local_sdp
; /* Local services */
71 unsigned long local_sap
; /* Local SAPs, not available for discovery */
74 u8 gb
[NFC_MAX_GT_LEN
];
78 u8 remote_gb
[NFC_MAX_GT_LEN
];
88 struct llcp_sock_list sockets
;
89 struct llcp_sock_list connecting_sockets
;
92 struct nfc_llcp_sock
{
95 struct nfc_llcp_local
*local
;
103 size_t service_name_len
;
113 /* Is the remote peer ready to receive */
116 struct sk_buff_head tx_queue
;
117 struct sk_buff_head tx_pending_queue
;
118 struct sk_buff_head tx_backlog_queue
;
120 struct list_head accept_queue
;
124 #define nfc_llcp_sock(sk) ((struct nfc_llcp_sock *) (sk))
125 #define nfc_llcp_dev(sk) (nfc_llcp_sock((sk))->dev)
127 #define LLCP_HEADER_SIZE 2
128 #define LLCP_SEQUENCE_SIZE 1
130 /* LLCP versions: 1.1 is 1.0 plus SDP */
131 #define LLCP_VERSION_10 0x10
132 #define LLCP_VERSION_11 0x11
135 #define LLCP_PDU_SYMM 0x0
136 #define LLCP_PDU_PAX 0x1
137 #define LLCP_PDU_AGF 0x2
138 #define LLCP_PDU_UI 0x3
139 #define LLCP_PDU_CONNECT 0x4
140 #define LLCP_PDU_DISC 0x5
141 #define LLCP_PDU_CC 0x6
142 #define LLCP_PDU_DM 0x7
143 #define LLCP_PDU_FRMR 0x8
144 #define LLCP_PDU_SNL 0x9
145 #define LLCP_PDU_I 0xc
146 #define LLCP_PDU_RR 0xd
147 #define LLCP_PDU_RNR 0xe
149 /* Parameters TLV types */
150 #define LLCP_TLV_VERSION 0x1
151 #define LLCP_TLV_MIUX 0x2
152 #define LLCP_TLV_WKS 0x3
153 #define LLCP_TLV_LTO 0x4
154 #define LLCP_TLV_RW 0x5
155 #define LLCP_TLV_SN 0x6
156 #define LLCP_TLV_OPT 0x7
157 #define LLCP_TLV_SDREQ 0x8
158 #define LLCP_TLV_SDRES 0x9
159 #define LLCP_TLV_MAX 0xa
161 /* Well known LLCP SAP */
162 #define LLCP_SAP_SDP 0x1
163 #define LLCP_SAP_IP 0x2
164 #define LLCP_SAP_OBEX 0x3
165 #define LLCP_SAP_SNEP 0x4
166 #define LLCP_SAP_MAX 0xff
168 /* Disconnection reason code */
169 #define LLCP_DM_DISC 0x00
170 #define LLCP_DM_NOCONN 0x01
171 #define LLCP_DM_NOBOUND 0x02
172 #define LLCP_DM_REJ 0x03
175 void nfc_llcp_sock_link(struct llcp_sock_list
*l
, struct sock
*s
);
176 void nfc_llcp_sock_unlink(struct llcp_sock_list
*l
, struct sock
*s
);
177 struct nfc_llcp_local
*nfc_llcp_find_local(struct nfc_dev
*dev
);
178 struct nfc_llcp_local
*nfc_llcp_local_get(struct nfc_llcp_local
*local
);
179 int nfc_llcp_local_put(struct nfc_llcp_local
*local
);
180 u8
nfc_llcp_get_sdp_ssap(struct nfc_llcp_local
*local
,
181 struct nfc_llcp_sock
*sock
);
182 u8
nfc_llcp_get_local_ssap(struct nfc_llcp_local
*local
);
183 void nfc_llcp_put_ssap(struct nfc_llcp_local
*local
, u8 ssap
);
184 int nfc_llcp_queue_i_frames(struct nfc_llcp_sock
*sock
);
187 struct sock
*nfc_llcp_sock_alloc(struct socket
*sock
, int type
, gfp_t gfp
);
188 void nfc_llcp_sock_free(struct nfc_llcp_sock
*sock
);
189 void nfc_llcp_accept_unlink(struct sock
*sk
);
190 void nfc_llcp_accept_enqueue(struct sock
*parent
, struct sock
*sk
);
191 struct sock
*nfc_llcp_accept_dequeue(struct sock
*sk
, struct socket
*newsock
);
194 int nfc_llcp_parse_gb_tlv(struct nfc_llcp_local
*local
,
195 u8
*tlv_array
, u16 tlv_array_len
);
196 int nfc_llcp_parse_connection_tlv(struct nfc_llcp_sock
*sock
,
197 u8
*tlv_array
, u16 tlv_array_len
);
200 void nfc_llcp_recv(void *data
, struct sk_buff
*skb
, int err
);
201 u8
*nfc_llcp_build_tlv(u8 type
, u8
*value
, u8 value_length
, u8
*tlv_length
);
202 void nfc_llcp_recv(void *data
, struct sk_buff
*skb
, int err
);
203 int nfc_llcp_disconnect(struct nfc_llcp_sock
*sock
);
204 int nfc_llcp_send_symm(struct nfc_dev
*dev
);
205 int nfc_llcp_send_connect(struct nfc_llcp_sock
*sock
);
206 int nfc_llcp_send_cc(struct nfc_llcp_sock
*sock
);
207 int nfc_llcp_send_dm(struct nfc_llcp_local
*local
, u8 ssap
, u8 dsap
, u8 reason
);
208 int nfc_llcp_send_disconnect(struct nfc_llcp_sock
*sock
);
209 int nfc_llcp_send_i_frame(struct nfc_llcp_sock
*sock
,
210 struct msghdr
*msg
, size_t len
);
211 int nfc_llcp_send_rr(struct nfc_llcp_sock
*sock
);
214 int __init
nfc_llcp_sock_init(void);
215 void nfc_llcp_sock_exit(void);