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net: Fix duplicate volatile warning.
[net-next-2.6.git] / include / net / llc_c_ev.h
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LT		 1#ifndef LLC_C_EV_H
2#define LLC_C_EV_H
3/*
4 * Copyright (c) 1997 by Procom Technology,Inc.
5 * 2001 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
6 *
7 * This program can be redistributed or modified under the terms of the
8 * GNU General Public License as published by the Free Software Foundation.
9 * This program is distributed without any warranty or implied warranty
10 * of merchantability or fitness for a particular purpose.
11 *
12 * See the GNU General Public License for more details.
13 */
14
15#include <net/sock.h>
16
17/* Connection component state transition event qualifiers */
18/* Types of events (possible values in 'ev->type') */
19#define LLC_CONN_EV_TYPE_SIMPLE 1
20#define LLC_CONN_EV_TYPE_CONDITION 2
21#define LLC_CONN_EV_TYPE_PRIM 3
22#define LLC_CONN_EV_TYPE_PDU 4 /* command/response PDU */
23#define LLC_CONN_EV_TYPE_ACK_TMR 5
24#define LLC_CONN_EV_TYPE_P_TMR 6
25#define LLC_CONN_EV_TYPE_REJ_TMR 7
26#define LLC_CONN_EV_TYPE_BUSY_TMR 8
27#define LLC_CONN_EV_TYPE_RPT_STATUS 9
28#define LLC_CONN_EV_TYPE_SENDACK_TMR 10
29
30#define NBR_CONN_EV 5
31/* Connection events which cause state transitions when fully qualified */
32
33#define LLC_CONN_EV_CONN_REQ 1
34#define LLC_CONN_EV_CONN_RESP 2
35#define LLC_CONN_EV_DATA_REQ 3
36#define LLC_CONN_EV_DISC_REQ 4
37#define LLC_CONN_EV_RESET_REQ 5
38#define LLC_CONN_EV_RESET_RESP 6
39#define LLC_CONN_EV_LOCAL_BUSY_DETECTED 7
40#define LLC_CONN_EV_LOCAL_BUSY_CLEARED 8
41#define LLC_CONN_EV_RX_BAD_PDU 9
42#define LLC_CONN_EV_RX_DISC_CMD_Pbit_SET_X 10
43#define LLC_CONN_EV_RX_DM_RSP_Fbit_SET_X 11
44#define LLC_CONN_EV_RX_FRMR_RSP_Fbit_SET_X 12
45#define LLC_CONN_EV_RX_I_CMD_Pbit_SET_X 13
46#define LLC_CONN_EV_RX_I_CMD_Pbit_SET_X_UNEXPD_Ns 14
47#define LLC_CONN_EV_RX_I_CMD_Pbit_SET_X_INVAL_Ns 15
48#define LLC_CONN_EV_RX_I_RSP_Fbit_SET_X 16
49#define LLC_CONN_EV_RX_I_RSP_Fbit_SET_X_UNEXPD_Ns 17
50#define LLC_CONN_EV_RX_I_RSP_Fbit_SET_X_INVAL_Ns 18
51#define LLC_CONN_EV_RX_REJ_CMD_Pbit_SET_X 19
52#define LLC_CONN_EV_RX_REJ_RSP_Fbit_SET_X 20
53#define LLC_CONN_EV_RX_RNR_CMD_Pbit_SET_X 21
54#define LLC_CONN_EV_RX_RNR_RSP_Fbit_SET_X 22
55#define LLC_CONN_EV_RX_RR_CMD_Pbit_SET_X 23
56#define LLC_CONN_EV_RX_RR_RSP_Fbit_SET_X 24
57#define LLC_CONN_EV_RX_SABME_CMD_Pbit_SET_X 25
58#define LLC_CONN_EV_RX_UA_RSP_Fbit_SET_X 26
59#define LLC_CONN_EV_RX_XXX_CMD_Pbit_SET_X 27
60#define LLC_CONN_EV_RX_XXX_RSP_Fbit_SET_X 28
61#define LLC_CONN_EV_RX_XXX_YYY 29
62#define LLC_CONN_EV_RX_ZZZ_CMD_Pbit_SET_X_INVAL_Nr 30
63#define LLC_CONN_EV_RX_ZZZ_RSP_Fbit_SET_X_INVAL_Nr 31
64#define LLC_CONN_EV_P_TMR_EXP 32
65#define LLC_CONN_EV_ACK_TMR_EXP 33
66#define LLC_CONN_EV_REJ_TMR_EXP 34
67#define LLC_CONN_EV_BUSY_TMR_EXP 35
68#define LLC_CONN_EV_RX_XXX_CMD_Pbit_SET_1 36
69#define LLC_CONN_EV_RX_XXX_CMD_Pbit_SET_0 37
70#define LLC_CONN_EV_RX_I_CMD_Pbit_SET_0_UNEXPD_Ns 38
71#define LLC_CONN_EV_RX_I_RSP_Fbit_SET_0_UNEXPD_Ns 39
72#define LLC_CONN_EV_RX_I_RSP_Fbit_SET_1_UNEXPD_Ns 40
73#define LLC_CONN_EV_RX_I_CMD_Pbit_SET_1_UNEXPD_Ns 41
74#define LLC_CONN_EV_RX_I_CMD_Pbit_SET_0 42
75#define LLC_CONN_EV_RX_I_RSP_Fbit_SET_0 43
76#define LLC_CONN_EV_RX_I_CMD_Pbit_SET_1 44
77#define LLC_CONN_EV_RX_RR_CMD_Pbit_SET_0 45
78#define LLC_CONN_EV_RX_RR_RSP_Fbit_SET_0 46
79#define LLC_CONN_EV_RX_RR_RSP_Fbit_SET_1 47
80#define LLC_CONN_EV_RX_RR_CMD_Pbit_SET_1 48
81#define LLC_CONN_EV_RX_RNR_CMD_Pbit_SET_0 49
82#define LLC_CONN_EV_RX_RNR_RSP_Fbit_SET_0 50
83#define LLC_CONN_EV_RX_RNR_RSP_Fbit_SET_1 51
84#define LLC_CONN_EV_RX_RNR_CMD_Pbit_SET_1 52
85#define LLC_CONN_EV_RX_REJ_CMD_Pbit_SET_0 53
86#define LLC_CONN_EV_RX_REJ_RSP_Fbit_SET_0 54
87#define LLC_CONN_EV_RX_REJ_CMD_Pbit_SET_1 55
88#define LLC_CONN_EV_RX_I_RSP_Fbit_SET_1 56
89#define LLC_CONN_EV_RX_REJ_RSP_Fbit_SET_1 57
90#define LLC_CONN_EV_RX_XXX_RSP_Fbit_SET_1 58
91#define LLC_CONN_EV_TX_BUFF_FULL 59
92
93#define LLC_CONN_EV_INIT_P_F_CYCLE 100
94/*
95 * Connection event qualifiers; for some events a certain combination of
96 * these qualifiers must be TRUE before event recognized valid for state;
97 * these constants act as indexes into the Event Qualifier function
98 * table
99 */
100#define LLC_CONN_EV_QFY_DATA_FLAG_EQ_1 1
101#define LLC_CONN_EV_QFY_DATA_FLAG_EQ_0 2
102#define LLC_CONN_EV_QFY_DATA_FLAG_EQ_2 3
103#define LLC_CONN_EV_QFY_P_FLAG_EQ_1 4
104#define LLC_CONN_EV_QFY_P_FLAG_EQ_0 5
105#define LLC_CONN_EV_QFY_P_FLAG_EQ_Fbit 6
106#define LLC_CONN_EV_QFY_REMOTE_BUSY_EQ_0 7
107#define LLC_CONN_EV_QFY_RETRY_CNT_LT_N2 8
108#define LLC_CONN_EV_QFY_RETRY_CNT_GTE_N2 9
109#define LLC_CONN_EV_QFY_S_FLAG_EQ_1 10
110#define LLC_CONN_EV_QFY_S_FLAG_EQ_0 11
111#define LLC_CONN_EV_QFY_INIT_P_F_CYCLE 12
112
113struct llc_conn_state_ev {
114 u8 type;
115 u8 prim;
116 u8 prim_type;
117 u8 reason;
118 u8 status;
119 u8 ind_prim;
120 u8 cfm_prim;
121};
122
123static __inline__ struct llc_conn_state_ev *llc_conn_ev(struct sk_buff *skb)
124{
125 return (struct llc_conn_state_ev *)skb->cb;
126}
127
128typedef int (*llc_conn_ev_t)(struct sock *sk, struct sk_buff *skb);
129typedef int (*llc_conn_ev_qfyr_t)(struct sock *sk, struct sk_buff *skb);
130
131extern int llc_conn_ev_conn_req(struct sock *sk, struct sk_buff *skb);
132extern int llc_conn_ev_data_req(struct sock *sk, struct sk_buff *skb);
133extern int llc_conn_ev_disc_req(struct sock *sk, struct sk_buff *skb);
134extern int llc_conn_ev_rst_req(struct sock *sk, struct sk_buff *skb);
135extern int llc_conn_ev_local_busy_detected(struct sock *sk,
136 struct sk_buff *skb);
137extern int llc_conn_ev_local_busy_cleared(struct sock *sk, struct sk_buff *skb);
138extern int llc_conn_ev_rx_bad_pdu(struct sock *sk, struct sk_buff *skb);
139extern int llc_conn_ev_rx_disc_cmd_pbit_set_x(struct sock *sk,
140 struct sk_buff *skb);
141extern int llc_conn_ev_rx_dm_rsp_fbit_set_x(struct sock *sk,
142 struct sk_buff *skb);
143extern int llc_conn_ev_rx_frmr_rsp_fbit_set_x(struct sock *sk,
144 struct sk_buff *skb);
145extern int llc_conn_ev_rx_i_cmd_pbit_set_x_inval_ns(struct sock *sk,
146 struct sk_buff *skb);
147extern int llc_conn_ev_rx_i_rsp_fbit_set_x(struct sock *sk,
148 struct sk_buff *skb);
149extern int llc_conn_ev_rx_i_rsp_fbit_set_x_unexpd_ns(struct sock *sk,
150 struct sk_buff *skb);
151extern int llc_conn_ev_rx_i_rsp_fbit_set_x_inval_ns(struct sock *sk,
152 struct sk_buff *skb);
153extern int llc_conn_ev_rx_rej_rsp_fbit_set_x(struct sock *sk,
154 struct sk_buff *skb);
155extern int llc_conn_ev_rx_sabme_cmd_pbit_set_x(struct sock *sk,
156 struct sk_buff *skb);
157extern int llc_conn_ev_rx_ua_rsp_fbit_set_x(struct sock *sk,
158 struct sk_buff *skb);
159extern int llc_conn_ev_rx_xxx_cmd_pbit_set_x(struct sock *sk,
160 struct sk_buff *skb);
161extern int llc_conn_ev_rx_xxx_rsp_fbit_set_x(struct sock *sk,
162 struct sk_buff *skb);
163extern int llc_conn_ev_rx_zzz_cmd_pbit_set_x_inval_nr(struct sock *sk,
164 struct sk_buff *skb);
165extern int llc_conn_ev_rx_zzz_rsp_fbit_set_x_inval_nr(struct sock *sk,
166 struct sk_buff *skb);
167extern int llc_conn_ev_p_tmr_exp(struct sock *sk, struct sk_buff *skb);
168extern int llc_conn_ev_ack_tmr_exp(struct sock *sk, struct sk_buff *skb);
169extern int llc_conn_ev_rej_tmr_exp(struct sock *sk, struct sk_buff *skb);
170extern int llc_conn_ev_busy_tmr_exp(struct sock *sk, struct sk_buff *skb);
171extern int llc_conn_ev_sendack_tmr_exp(struct sock *sk, struct sk_buff *skb);
172/* NOT_USED functions and their variations */
173extern int llc_conn_ev_rx_xxx_cmd_pbit_set_1(struct sock *sk,
174 struct sk_buff *skb);
175extern int llc_conn_ev_rx_xxx_rsp_fbit_set_1(struct sock *sk,
176 struct sk_buff *skb);
177extern int llc_conn_ev_rx_i_cmd_pbit_set_0_unexpd_ns(struct sock *sk,
178 struct sk_buff *skb);
179extern int llc_conn_ev_rx_i_cmd_pbit_set_1_unexpd_ns(struct sock *sk,
180 struct sk_buff *skb);
181extern int llc_conn_ev_rx_i_cmd_pbit_set_0(struct sock *sk,
182 struct sk_buff *skb);
183extern int llc_conn_ev_rx_i_cmd_pbit_set_1(struct sock *sk,
184 struct sk_buff *skb);
185extern int llc_conn_ev_rx_i_rsp_fbit_set_0_unexpd_ns(struct sock *sk,
186 struct sk_buff *skb);
187extern int llc_conn_ev_rx_i_rsp_fbit_set_1_unexpd_ns(struct sock *sk,
188 struct sk_buff *skb);
189extern int llc_conn_ev_rx_i_rsp_fbit_set_0(struct sock *sk,
190 struct sk_buff *skb);
191extern int llc_conn_ev_rx_i_rsp_fbit_set_1(struct sock *sk,
192 struct sk_buff *skb);
193extern int llc_conn_ev_rx_rr_cmd_pbit_set_0(struct sock *sk,
194 struct sk_buff *skb);
195extern int llc_conn_ev_rx_rr_cmd_pbit_set_1(struct sock *sk,
196 struct sk_buff *skb);
197extern int llc_conn_ev_rx_rr_rsp_fbit_set_0(struct sock *sk,
198 struct sk_buff *skb);
199extern int llc_conn_ev_rx_rr_rsp_fbit_set_1(struct sock *sk,
200 struct sk_buff *skb);
201extern int llc_conn_ev_rx_rnr_cmd_pbit_set_0(struct sock *sk,
202 struct sk_buff *skb);
203extern int llc_conn_ev_rx_rnr_cmd_pbit_set_1(struct sock *sk,
204 struct sk_buff *skb);
205extern int llc_conn_ev_rx_rnr_rsp_fbit_set_0(struct sock *sk,
206 struct sk_buff *skb);
207extern int llc_conn_ev_rx_rnr_rsp_fbit_set_1(struct sock *sk,
208 struct sk_buff *skb);
209extern int llc_conn_ev_rx_rej_cmd_pbit_set_0(struct sock *sk,
210 struct sk_buff *skb);
211extern int llc_conn_ev_rx_rej_cmd_pbit_set_1(struct sock *sk,
212 struct sk_buff *skb);
213extern int llc_conn_ev_rx_rej_rsp_fbit_set_0(struct sock *sk,
214 struct sk_buff *skb);
215extern int llc_conn_ev_rx_rej_rsp_fbit_set_1(struct sock *sk,
216 struct sk_buff *skb);
217extern int llc_conn_ev_rx_any_frame(struct sock *sk, struct sk_buff *skb);
218extern int llc_conn_ev_tx_buffer_full(struct sock *sk, struct sk_buff *skb);
219extern int llc_conn_ev_init_p_f_cycle(struct sock *sk, struct sk_buff *skb);
220
221/* Available connection action qualifiers */
222extern int llc_conn_ev_qlfy_data_flag_eq_1(struct sock *sk,
223 struct sk_buff *skb);
224extern int llc_conn_ev_qlfy_data_flag_eq_0(struct sock *sk,
225 struct sk_buff *skb);
226extern int llc_conn_ev_qlfy_data_flag_eq_2(struct sock *sk,
227 struct sk_buff *skb);
228extern int llc_conn_ev_qlfy_p_flag_eq_1(struct sock *sk, struct sk_buff *skb);
229extern int llc_conn_ev_qlfy_last_frame_eq_1(struct sock *sk,
230 struct sk_buff *skb);
231extern int llc_conn_ev_qlfy_last_frame_eq_0(struct sock *sk,
232 struct sk_buff *skb);
233extern int llc_conn_ev_qlfy_p_flag_eq_0(struct sock *sk, struct sk_buff *skb);
234extern int llc_conn_ev_qlfy_p_flag_eq_f(struct sock *sk, struct sk_buff *skb);
235extern int llc_conn_ev_qlfy_remote_busy_eq_0(struct sock *sk,
236 struct sk_buff *skb);
237extern int llc_conn_ev_qlfy_remote_busy_eq_1(struct sock *sk,
238 struct sk_buff *skb);
239extern int llc_conn_ev_qlfy_retry_cnt_lt_n2(struct sock *sk,
240 struct sk_buff *skb);
241extern int llc_conn_ev_qlfy_retry_cnt_gte_n2(struct sock *sk,
242 struct sk_buff *skb);
243extern int llc_conn_ev_qlfy_s_flag_eq_1(struct sock *sk, struct sk_buff *skb);
244extern int llc_conn_ev_qlfy_s_flag_eq_0(struct sock *sk, struct sk_buff *skb);
245extern int llc_conn_ev_qlfy_cause_flag_eq_1(struct sock *sk,
246 struct sk_buff *skb);
247extern int llc_conn_ev_qlfy_cause_flag_eq_0(struct sock *sk,
248 struct sk_buff *skb);
249extern int llc_conn_ev_qlfy_set_status_conn(struct sock *sk,
250 struct sk_buff *skb);
251extern int llc_conn_ev_qlfy_set_status_disc(struct sock *sk,
252 struct sk_buff *skb);
253extern int llc_conn_ev_qlfy_set_status_failed(struct sock *sk,
254 struct sk_buff *skb);
255extern int llc_conn_ev_qlfy_set_status_remote_busy(struct sock *sk,
256 struct sk_buff *skb);
257extern int llc_conn_ev_qlfy_set_status_refuse(struct sock *sk,
258 struct sk_buff *skb);
259extern int llc_conn_ev_qlfy_set_status_conflict(struct sock *sk,
260 struct sk_buff *skb);
261extern int llc_conn_ev_qlfy_set_status_rst_done(struct sock *sk,
262 struct sk_buff *skb);
263
264static __inline__ int llc_conn_space(struct sock *sk, struct sk_buff *skb)
265{
266 return atomic_read(&sk->sk_rmem_alloc) + skb->truesize <
267 (unsigned)sk->sk_rcvbuf;
268}
269#endif /* LLC_C_EV_H */
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