summaryrefslogtreecommitdiffstats
path: root/include/net/llc_c_ev.h
blob: 24188995515795146305cc7e2d5977bc50f6aac9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
#ifndef LLC_C_EV_H
#define LLC_C_EV_H
/*
 * Copyright (c) 1997 by Procom Technology,Inc.
 *		 2001 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
 *
 * This program can be redistributed or modified under the terms of the
 * GNU General Public License as published by the Free Software Foundation.
 * This program is distributed without any warranty or implied warranty
 * of merchantability or fitness for a particular purpose.
 *
 * See the GNU General Public License for more details.
 */

#include <net/sock.h>

/* Connection component state transition event qualifiers */
/* Types of events (possible values in 'ev->type') */
#define LLC_CONN_EV_TYPE_SIMPLE		 1
#define LLC_CONN_EV_TYPE_CONDITION	 2
#define LLC_CONN_EV_TYPE_PRIM		 3
#define LLC_CONN_EV_TYPE_PDU		 4	/* command/response PDU */
#define LLC_CONN_EV_TYPE_ACK_TMR	 5
#define LLC_CONN_EV_TYPE_P_TMR		 6
#define LLC_CONN_EV_TYPE_REJ_TMR	 7
#define LLC_CONN_EV_TYPE_BUSY_TMR	 8
#define LLC_CONN_EV_TYPE_RPT_STATUS	 9
#define LLC_CONN_EV_TYPE_SENDACK_TMR	10

#define NBR_CONN_EV		   5
/* Connection events which cause state transitions when fully qualified */

#define LLC_CONN_EV_CONN_REQ				 1
#define LLC_CONN_EV_CONN_RESP				 2
#define LLC_CONN_EV_DATA_REQ				 3
#define LLC_CONN_EV_DISC_REQ				 4
#define LLC_CONN_EV_RESET_REQ				 5
#define LLC_CONN_EV_RESET_RESP				 6
#define LLC_CONN_EV_LOCAL_BUSY_DETECTED			 7
#define LLC_CONN_EV_LOCAL_BUSY_CLEARED			 8
#define LLC_CONN_EV_RX_BAD_PDU				 9
#define LLC_CONN_EV_RX_DISC_CMD_Pbit_SET_X		10
#define LLC_CONN_EV_RX_DM_RSP_Fbit_SET_X		11
#define LLC_CONN_EV_RX_FRMR_RSP_Fbit_SET_X		12
#define LLC_CONN_EV_RX_I_CMD_Pbit_SET_X			13
#define LLC_CONN_EV_RX_I_CMD_Pbit_SET_X_UNEXPD_Ns	14
#define LLC_CONN_EV_RX_I_CMD_Pbit_SET_X_INVAL_Ns	15
#define LLC_CONN_EV_RX_I_RSP_Fbit_SET_X			16
#define LLC_CONN_EV_RX_I_RSP_Fbit_SET_X_UNEXPD_Ns	17
#define LLC_CONN_EV_RX_I_RSP_Fbit_SET_X_INVAL_Ns	18
#define LLC_CONN_EV_RX_REJ_CMD_Pbit_SET_X		19
#define LLC_CONN_EV_RX_REJ_RSP_Fbit_SET_X		20
#define LLC_CONN_EV_RX_RNR_CMD_Pbit_SET_X		21
#define LLC_CONN_EV_RX_RNR_RSP_Fbit_SET_X		22
#define LLC_CONN_EV_RX_RR_CMD_Pbit_SET_X		23
#define LLC_CONN_EV_RX_RR_RSP_Fbit_SET_X		24
#define LLC_CONN_EV_RX_SABME_CMD_Pbit_SET_X		25
#define LLC_CONN_EV_RX_UA_RSP_Fbit_SET_X		26
#define LLC_CONN_EV_RX_XXX_CMD_Pbit_SET_X		27
#define LLC_CONN_EV_RX_XXX_RSP_Fbit_SET_X		28
#define LLC_CONN_EV_RX_XXX_YYY				29
#define LLC_CONN_EV_RX_ZZZ_CMD_Pbit_SET_X_INVAL_Nr	30
#define LLC_CONN_EV_RX_ZZZ_RSP_Fbit_SET_X_INVAL_Nr	31
#define LLC_CONN_EV_P_TMR_EXP				32
#define LLC_CONN_EV_ACK_TMR_EXP				33
#define LLC_CONN_EV_REJ_TMR_EXP				34
#define LLC_CONN_EV_BUSY_TMR_EXP			35
#define LLC_CONN_EV_RX_XXX_CMD_Pbit_SET_1		36
#define LLC_CONN_EV_RX_XXX_CMD_Pbit_SET_0		37
#define LLC_CONN_EV_RX_I_CMD_Pbit_SET_0_UNEXPD_Ns	38
#define LLC_CONN_EV_RX_I_RSP_Fbit_SET_0_UNEXPD_Ns	39
#define LLC_CONN_EV_RX_I_RSP_Fbit_SET_1_UNEXPD_Ns	40
#define LLC_CONN_EV_RX_I_CMD_Pbit_SET_1_UNEXPD_Ns	41
#define LLC_CONN_EV_RX_I_CMD_Pbit_SET_0			42
#define LLC_CONN_EV_RX_I_RSP_Fbit_SET_0			43
#define LLC_CONN_EV_RX_I_CMD_Pbit_SET_1			44
#define LLC_CONN_EV_RX_RR_CMD_Pbit_SET_0		45
#define LLC_CONN_EV_RX_RR_RSP_Fbit_SET_0		46
#define LLC_CONN_EV_RX_RR_RSP_Fbit_SET_1		47
#define LLC_CONN_EV_RX_RR_CMD_Pbit_SET_1		48
#define LLC_CONN_EV_RX_RNR_CMD_Pbit_SET_0		49
#define LLC_CONN_EV_RX_RNR_RSP_Fbit_SET_0		50
#define LLC_CONN_EV_RX_RNR_RSP_Fbit_SET_1		51
#define LLC_CONN_EV_RX_RNR_CMD_Pbit_SET_1		52
#define LLC_CONN_EV_RX_REJ_CMD_Pbit_SET_0		53
#define LLC_CONN_EV_RX_REJ_RSP_Fbit_SET_0		54
#define LLC_CONN_EV_RX_REJ_CMD_Pbit_SET_1		55
#define LLC_CONN_EV_RX_I_RSP_Fbit_SET_1			56
#define LLC_CONN_EV_RX_REJ_RSP_Fbit_SET_1		57
#define LLC_CONN_EV_RX_XXX_RSP_Fbit_SET_1		58
#define LLC_CONN_EV_TX_BUFF_FULL			59

#define LLC_CONN_EV_INIT_P_F_CYCLE			100
/*
 * Connection event qualifiers; for some events a certain combination of
 * these qualifiers must be TRUE before event recognized valid for state;
 * these constants act as indexes into the Event Qualifier function
 * table
 */
#define LLC_CONN_EV_QFY_DATA_FLAG_EQ_1		 1
#define LLC_CONN_EV_QFY_DATA_FLAG_EQ_0		 2
#define LLC_CONN_EV_QFY_DATA_FLAG_EQ_2		 3
#define LLC_CONN_EV_QFY_P_FLAG_EQ_1		 4
#define LLC_CONN_EV_QFY_P_FLAG_EQ_0		 5
#define LLC_CONN_EV_QFY_P_FLAG_EQ_Fbit		 6
#define LLC_CONN_EV_QFY_REMOTE_BUSY_EQ_0	 7
#define LLC_CONN_EV_QFY_RETRY_CNT_LT_N2		 8
#define LLC_CONN_EV_QFY_RETRY_CNT_GTE_N2	 9
#define LLC_CONN_EV_QFY_S_FLAG_EQ_1		10
#define LLC_CONN_EV_QFY_S_FLAG_EQ_0		11
#define LLC_CONN_EV_QFY_INIT_P_F_CYCLE		12

struct llc_conn_state_ev {
	u8 type;
	u8 prim;
	u8 prim_type;
	u8 reason;
	u8 status;
	u8 ind_prim;
	u8 cfm_prim;
};

static __inline__ struct llc_conn_state_ev *llc_conn_ev(struct sk_buff *skb)
{
	return (struct llc_conn_state_ev *)skb->cb;
}

typedef int (*llc_conn_ev_t)(struct sock *sk, struct sk_buff *skb);
typedef int (*llc_conn_ev_qfyr_t)(struct sock *sk, struct sk_buff *skb);

int llc_conn_ev_conn_req(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_data_req(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_disc_req(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rst_req(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_local_busy_detected(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_local_busy_cleared(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_bad_pdu(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_disc_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_dm_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_frmr_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_i_cmd_pbit_set_x_inval_ns(struct sock *sk,
					     struct sk_buff *skb);
int llc_conn_ev_rx_i_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_i_rsp_fbit_set_x_unexpd_ns(struct sock *sk,
					      struct sk_buff *skb);
int llc_conn_ev_rx_i_rsp_fbit_set_x_inval_ns(struct sock *sk,
					     struct sk_buff *skb);
int llc_conn_ev_rx_rej_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_sabme_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_ua_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_xxx_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_xxx_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_zzz_cmd_pbit_set_x_inval_nr(struct sock *sk,
					       struct sk_buff *skb);
int llc_conn_ev_rx_zzz_rsp_fbit_set_x_inval_nr(struct sock *sk,
					       struct sk_buff *skb);
int llc_conn_ev_p_tmr_exp(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_ack_tmr_exp(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rej_tmr_exp(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_busy_tmr_exp(struct sock *sk, struct sk_buff *skb);
/* NOT_USED functions and their variations */
int llc_conn_ev_rx_xxx_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_xxx_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_i_cmd_pbit_set_0_unexpd_ns(struct sock *sk,
					      struct sk_buff *skb);
int llc_conn_ev_rx_i_cmd_pbit_set_1_unexpd_ns(struct sock *sk,
					      struct sk_buff *skb);
int llc_conn_ev_rx_i_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_i_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_i_rsp_fbit_set_0_unexpd_ns(struct sock *sk,
					      struct sk_buff *skb);
int llc_conn_ev_rx_i_rsp_fbit_set_1_unexpd_ns(struct sock *sk,
					      struct sk_buff *skb);
int llc_conn_ev_rx_i_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_i_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_rr_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_rr_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_rr_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_rr_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_rnr_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_rnr_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_rnr_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_rnr_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_rej_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_rej_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_rej_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_rej_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_rx_any_frame(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_tx_buffer_full(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_init_p_f_cycle(struct sock *sk, struct sk_buff *skb);

/* Available connection action qualifiers */
int llc_conn_ev_qlfy_data_flag_eq_1(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_qlfy_data_flag_eq_0(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_qlfy_data_flag_eq_2(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_qlfy_p_flag_eq_1(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_qlfy_last_frame_eq_1(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_qlfy_last_frame_eq_0(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_qlfy_p_flag_eq_0(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_qlfy_p_flag_eq_f(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_qlfy_remote_busy_eq_0(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_qlfy_remote_busy_eq_1(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_qlfy_retry_cnt_lt_n2(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_qlfy_retry_cnt_gte_n2(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_qlfy_s_flag_eq_1(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_qlfy_s_flag_eq_0(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_qlfy_cause_flag_eq_1(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_qlfy_cause_flag_eq_0(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_qlfy_set_status_conn(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_qlfy_set_status_disc(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_qlfy_set_status_failed(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_qlfy_set_status_remote_busy(struct sock *sk,
					    struct sk_buff *skb);
int llc_conn_ev_qlfy_set_status_refuse(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_qlfy_set_status_conflict(struct sock *sk, struct sk_buff *skb);
int llc_conn_ev_qlfy_set_status_rst_done(struct sock *sk, struct sk_buff *skb);

static __inline__ int llc_conn_space(struct sock *sk, struct sk_buff *skb)
{
	return atomic_read(&sk->sk_rmem_alloc) + skb->truesize <
	       (unsigned int)sk->sk_rcvbuf;
}
#endif /* LLC_C_EV_H */