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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef LLC_C_AC_H
3#define LLC_C_AC_H
4/*
5 * Copyright (c) 1997 by Procom Technology,Inc.
6 * 2001 by Arnaldo Carvalho de Melo <[email protected]>
7 */
8/* Connection component state transition actions */
9/*
10 * Connection state transition actions
11 * (Fb = F bit; Pb = P bit; Xb = X bit)
12 */
13
14#include <linux/types.h>
15
16struct sk_buff;
17struct sock;
18struct timer_list;
19
20#define LLC_CONN_AC_CLR_REMOTE_BUSY 1
21#define LLC_CONN_AC_CONN_IND 2
22#define LLC_CONN_AC_CONN_CONFIRM 3
23#define LLC_CONN_AC_DATA_IND 4
24#define LLC_CONN_AC_DISC_IND 5
25#define LLC_CONN_AC_RESET_IND 6
26#define LLC_CONN_AC_RESET_CONFIRM 7
27#define LLC_CONN_AC_REPORT_STATUS 8
28#define LLC_CONN_AC_CLR_REMOTE_BUSY_IF_Fb_EQ_1 9
29#define LLC_CONN_AC_STOP_REJ_TMR_IF_DATA_FLAG_EQ_2 10
30#define LLC_CONN_AC_SEND_DISC_CMD_Pb_SET_X 11
31#define LLC_CONN_AC_SEND_DM_RSP_Fb_SET_Pb 12
32#define LLC_CONN_AC_SEND_DM_RSP_Fb_SET_1 13
33#define LLC_CONN_AC_SEND_DM_RSP_Fb_SET_F_FLAG 14
34#define LLC_CONN_AC_SEND_FRMR_RSP_Fb_SET_X 15
35#define LLC_CONN_AC_RESEND_FRMR_RSP_Fb_SET_0 16
36#define LLC_CONN_AC_RESEND_FRMR_RSP_Fb_SET_Pb 17
37#define LLC_CONN_AC_SEND_I_CMD_Pb_SET_1 18
38#define LLC_CONN_AC_RESEND_I_CMD_Pb_SET_1 19
39#define LLC_CONN_AC_RESEND_I_CMD_Pb_SET_1_OR_SEND_RR 20
40#define LLC_CONN_AC_SEND_I_XXX_Xb_SET_0 21
41#define LLC_CONN_AC_RESEND_I_XXX_Xb_SET_0 22
42#define LLC_CONN_AC_RESEND_I_XXX_Xb_SET_0_OR_SEND_RR 23
43#define LLC_CONN_AC_RESEND_I_RSP_Fb_SET_1 24
44#define LLC_CONN_AC_SEND_REJ_CMD_Pb_SET_1 25
45#define LLC_CONN_AC_SEND_REJ_RSP_Fb_SET_1 26
46#define LLC_CONN_AC_SEND_REJ_XXX_Xb_SET_0 27
47#define LLC_CONN_AC_SEND_RNR_CMD_Pb_SET_1 28
48#define LLC_CONN_AC_SEND_RNR_RSP_Fb_SET_1 29
49#define LLC_CONN_AC_SEND_RNR_XXX_Xb_SET_0 30
50#define LLC_CONN_AC_SET_REMOTE_BUSY 31
51#define LLC_CONN_AC_OPTIONAL_SEND_RNR_XXX_Xb_SET_0 32
52#define LLC_CONN_AC_SEND_RR_CMD_Pb_SET_1 33
53#define LLC_CONN_AC_SEND_ACK_CMD_Pb_SET_1 34
54#define LLC_CONN_AC_SEND_RR_RSP_Fb_SET_1 35
55#define LLC_CONN_AC_SEND_ACK_RSP_Fb_SET_1 36
56#define LLC_CONN_AC_SEND_RR_XXX_Xb_SET_0 37
57#define LLC_CONN_AC_SEND_ACK_XXX_Xb_SET_0 38
58#define LLC_CONN_AC_SEND_SABME_CMD_Pb_SET_X 39
59#define LLC_CONN_AC_SEND_UA_RSP_Fb_SET_Pb 40
60#define LLC_CONN_AC_SEND_UA_RSP_Fb_SET_F_FLAG 41
61#define LLC_CONN_AC_S_FLAG_SET_0 42
62#define LLC_CONN_AC_S_FLAG_SET_1 43
63#define LLC_CONN_AC_START_P_TMR 44
64#define LLC_CONN_AC_START_ACK_TMR 45
65#define LLC_CONN_AC_START_REJ_TMR 46
66#define LLC_CONN_AC_START_ACK_TMR_IF_NOT_RUNNING 47
67#define LLC_CONN_AC_STOP_ACK_TMR 48
68#define LLC_CONN_AC_STOP_P_TMR 49
69#define LLC_CONN_AC_STOP_REJ_TMR 50
70#define LLC_CONN_AC_STOP_ALL_TMRS 51
71#define LLC_CONN_AC_STOP_OTHER_TMRS 52
72#define LLC_CONN_AC_UPDATE_Nr_RECEIVED 53
73#define LLC_CONN_AC_UPDATE_P_FLAG 54
74#define LLC_CONN_AC_DATA_FLAG_SET_2 55
75#define LLC_CONN_AC_DATA_FLAG_SET_0 56
76#define LLC_CONN_AC_DATA_FLAG_SET_1 57
77#define LLC_CONN_AC_DATA_FLAG_SET_1_IF_DATA_FLAG_EQ_0 58
78#define LLC_CONN_AC_P_FLAG_SET_0 59
79#define LLC_CONN_AC_P_FLAG_SET_P 60
80#define LLC_CONN_AC_REMOTE_BUSY_SET_0 61
81#define LLC_CONN_AC_RETRY_CNT_SET_0 62
82#define LLC_CONN_AC_RETRY_CNT_INC_BY_1 63
83#define LLC_CONN_AC_Vr_SET_0 64
84#define LLC_CONN_AC_Vr_INC_BY_1 65
85#define LLC_CONN_AC_Vs_SET_0 66
86#define LLC_CONN_AC_Vs_SET_Nr 67
87#define LLC_CONN_AC_F_FLAG_SET_P 68
88#define LLC_CONN_AC_STOP_SENDACK_TMR 70
89#define LLC_CONN_AC_START_SENDACK_TMR_IF_NOT_RUNNING 71
90
91typedef int (*llc_conn_action_t)(struct sock *sk, struct sk_buff *skb);
92
93int llc_conn_ac_clear_remote_busy(struct sock *sk, struct sk_buff *skb);
94int llc_conn_ac_conn_ind(struct sock *sk, struct sk_buff *skb);
95int llc_conn_ac_conn_confirm(struct sock *sk, struct sk_buff *skb);
96int llc_conn_ac_data_ind(struct sock *sk, struct sk_buff *skb);
97int llc_conn_ac_disc_ind(struct sock *sk, struct sk_buff *skb);
98int llc_conn_ac_rst_ind(struct sock *sk, struct sk_buff *skb);
99int llc_conn_ac_rst_confirm(struct sock *sk, struct sk_buff *skb);
100int llc_conn_ac_clear_remote_busy_if_f_eq_1(struct sock *sk,
101 struct sk_buff *skb);
102int llc_conn_ac_stop_rej_tmr_if_data_flag_eq_2(struct sock *sk,
103 struct sk_buff *skb);
104int llc_conn_ac_send_disc_cmd_p_set_x(struct sock *sk, struct sk_buff *skb);
105int llc_conn_ac_send_dm_rsp_f_set_p(struct sock *sk, struct sk_buff *skb);
106int llc_conn_ac_send_dm_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
107int llc_conn_ac_send_frmr_rsp_f_set_x(struct sock *sk, struct sk_buff *skb);
108int llc_conn_ac_resend_frmr_rsp_f_set_0(struct sock *sk, struct sk_buff *skb);
109int llc_conn_ac_resend_frmr_rsp_f_set_p(struct sock *sk, struct sk_buff *skb);
110int llc_conn_ac_send_i_cmd_p_set_1(struct sock *sk, struct sk_buff *skb);
111int llc_conn_ac_send_i_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
112int llc_conn_ac_resend_i_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
113int llc_conn_ac_resend_i_xxx_x_set_0_or_send_rr(struct sock *sk,
114 struct sk_buff *skb);
115int llc_conn_ac_resend_i_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
116int llc_conn_ac_send_rej_cmd_p_set_1(struct sock *sk, struct sk_buff *skb);
117int llc_conn_ac_send_rej_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
118int llc_conn_ac_send_rej_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
119int llc_conn_ac_send_rnr_cmd_p_set_1(struct sock *sk, struct sk_buff *skb);
120int llc_conn_ac_send_rnr_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
121int llc_conn_ac_send_rnr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
122int llc_conn_ac_set_remote_busy(struct sock *sk, struct sk_buff *skb);
123int llc_conn_ac_opt_send_rnr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
124int llc_conn_ac_send_rr_cmd_p_set_1(struct sock *sk, struct sk_buff *skb);
125int llc_conn_ac_send_rr_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
126int llc_conn_ac_send_ack_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
127int llc_conn_ac_send_rr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
128int llc_conn_ac_send_ack_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
129int llc_conn_ac_send_sabme_cmd_p_set_x(struct sock *sk, struct sk_buff *skb);
130int llc_conn_ac_send_ua_rsp_f_set_p(struct sock *sk, struct sk_buff *skb);
131int llc_conn_ac_set_s_flag_0(struct sock *sk, struct sk_buff *skb);
132int llc_conn_ac_set_s_flag_1(struct sock *sk, struct sk_buff *skb);
133int llc_conn_ac_start_p_timer(struct sock *sk, struct sk_buff *skb);
134int llc_conn_ac_start_ack_timer(struct sock *sk, struct sk_buff *skb);
135int llc_conn_ac_start_rej_timer(struct sock *sk, struct sk_buff *skb);
136int llc_conn_ac_start_ack_tmr_if_not_running(struct sock *sk,
137 struct sk_buff *skb);
138int llc_conn_ac_stop_ack_timer(struct sock *sk, struct sk_buff *skb);
139int llc_conn_ac_stop_p_timer(struct sock *sk, struct sk_buff *skb);
140int llc_conn_ac_stop_rej_timer(struct sock *sk, struct sk_buff *skb);
141int llc_conn_ac_stop_all_timers(struct sock *sk, struct sk_buff *skb);
142int llc_conn_ac_stop_other_timers(struct sock *sk, struct sk_buff *skb);
143int llc_conn_ac_upd_nr_received(struct sock *sk, struct sk_buff *skb);
144int llc_conn_ac_inc_tx_win_size(struct sock *sk, struct sk_buff *skb);
145int llc_conn_ac_dec_tx_win_size(struct sock *sk, struct sk_buff *skb);
146int llc_conn_ac_upd_p_flag(struct sock *sk, struct sk_buff *skb);
147int llc_conn_ac_set_data_flag_2(struct sock *sk, struct sk_buff *skb);
148int llc_conn_ac_set_data_flag_0(struct sock *sk, struct sk_buff *skb);
149int llc_conn_ac_set_data_flag_1(struct sock *sk, struct sk_buff *skb);
150int llc_conn_ac_set_data_flag_1_if_data_flag_eq_0(struct sock *sk,
151 struct sk_buff *skb);
152int llc_conn_ac_set_p_flag_0(struct sock *sk, struct sk_buff *skb);
153int llc_conn_ac_set_remote_busy_0(struct sock *sk, struct sk_buff *skb);
154int llc_conn_ac_set_retry_cnt_0(struct sock *sk, struct sk_buff *skb);
155int llc_conn_ac_set_cause_flag_0(struct sock *sk, struct sk_buff *skb);
156int llc_conn_ac_set_cause_flag_1(struct sock *sk, struct sk_buff *skb);
157int llc_conn_ac_inc_retry_cnt_by_1(struct sock *sk, struct sk_buff *skb);
158int llc_conn_ac_set_vr_0(struct sock *sk, struct sk_buff *skb);
159int llc_conn_ac_inc_vr_by_1(struct sock *sk, struct sk_buff *skb);
160int llc_conn_ac_set_vs_0(struct sock *sk, struct sk_buff *skb);
161int llc_conn_ac_set_vs_nr(struct sock *sk, struct sk_buff *skb);
162int llc_conn_ac_rst_vs(struct sock *sk, struct sk_buff *skb);
163int llc_conn_ac_upd_vs(struct sock *sk, struct sk_buff *skb);
164int llc_conn_disc(struct sock *sk, struct sk_buff *skb);
165int llc_conn_reset(struct sock *sk, struct sk_buff *skb);
166int llc_conn_ac_disc_confirm(struct sock *sk, struct sk_buff *skb);
167u8 llc_circular_between(u8 a, u8 b, u8 c);
168int llc_conn_ac_send_ack_if_needed(struct sock *sk, struct sk_buff *skb);
169int llc_conn_ac_adjust_npta_by_rr(struct sock *sk, struct sk_buff *skb);
170int llc_conn_ac_adjust_npta_by_rnr(struct sock *sk, struct sk_buff *skb);
171int llc_conn_ac_rst_sendack_flag(struct sock *sk, struct sk_buff *skb);
172int llc_conn_ac_send_i_as_ack(struct sock *sk, struct sk_buff *skb);
173
174void llc_conn_busy_tmr_cb(struct timer_list *t);
175void llc_conn_pf_cycle_tmr_cb(struct timer_list *t);
176void llc_conn_ack_tmr_cb(struct timer_list *t);
177void llc_conn_rej_tmr_cb(struct timer_list *t);
178
179void llc_conn_set_p_flag(struct sock *sk, u8 value);
180#endif /* LLC_C_AC_H */