xref: /linux/include/net/llc_c_ac.h (revision 03c305861c70d6db898dd2379b882e7772a5c5d0)
1 #ifndef LLC_C_AC_H
2 #define LLC_C_AC_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 /* Connection component state transition actions */
15 /*
16  * Connection state transition actions
17  * (Fb = F bit; Pb = P bit; Xb = X bit)
18  */
19 
20 #include <linux/types.h>
21 
22 struct sk_buff;
23 struct sock;
24 struct timer_list;
25 
26 #define LLC_CONN_AC_CLR_REMOTE_BUSY			 1
27 #define LLC_CONN_AC_CONN_IND				 2
28 #define LLC_CONN_AC_CONN_CONFIRM			 3
29 #define LLC_CONN_AC_DATA_IND				 4
30 #define LLC_CONN_AC_DISC_IND				 5
31 #define LLC_CONN_AC_RESET_IND				 6
32 #define LLC_CONN_AC_RESET_CONFIRM			 7
33 #define LLC_CONN_AC_REPORT_STATUS			 8
34 #define LLC_CONN_AC_CLR_REMOTE_BUSY_IF_Fb_EQ_1		 9
35 #define LLC_CONN_AC_STOP_REJ_TMR_IF_DATA_FLAG_EQ_2	10
36 #define LLC_CONN_AC_SEND_DISC_CMD_Pb_SET_X		11
37 #define LLC_CONN_AC_SEND_DM_RSP_Fb_SET_Pb		12
38 #define LLC_CONN_AC_SEND_DM_RSP_Fb_SET_1		13
39 #define LLC_CONN_AC_SEND_DM_RSP_Fb_SET_F_FLAG		14
40 #define LLC_CONN_AC_SEND_FRMR_RSP_Fb_SET_X		15
41 #define LLC_CONN_AC_RESEND_FRMR_RSP_Fb_SET_0		16
42 #define LLC_CONN_AC_RESEND_FRMR_RSP_Fb_SET_Pb		17
43 #define LLC_CONN_AC_SEND_I_CMD_Pb_SET_1			18
44 #define LLC_CONN_AC_RESEND_I_CMD_Pb_SET_1		19
45 #define LLC_CONN_AC_RESEND_I_CMD_Pb_SET_1_OR_SEND_RR	20
46 #define LLC_CONN_AC_SEND_I_XXX_Xb_SET_0			21
47 #define LLC_CONN_AC_RESEND_I_XXX_Xb_SET_0		22
48 #define LLC_CONN_AC_RESEND_I_XXX_Xb_SET_0_OR_SEND_RR	23
49 #define LLC_CONN_AC_RESEND_I_RSP_Fb_SET_1		24
50 #define LLC_CONN_AC_SEND_REJ_CMD_Pb_SET_1		25
51 #define LLC_CONN_AC_SEND_REJ_RSP_Fb_SET_1		26
52 #define LLC_CONN_AC_SEND_REJ_XXX_Xb_SET_0		27
53 #define LLC_CONN_AC_SEND_RNR_CMD_Pb_SET_1		28
54 #define LLC_CONN_AC_SEND_RNR_RSP_Fb_SET_1		29
55 #define LLC_CONN_AC_SEND_RNR_XXX_Xb_SET_0		30
56 #define LLC_CONN_AC_SET_REMOTE_BUSY			31
57 #define LLC_CONN_AC_OPTIONAL_SEND_RNR_XXX_Xb_SET_0	32
58 #define LLC_CONN_AC_SEND_RR_CMD_Pb_SET_1		33
59 #define LLC_CONN_AC_SEND_ACK_CMD_Pb_SET_1		34
60 #define LLC_CONN_AC_SEND_RR_RSP_Fb_SET_1		35
61 #define LLC_CONN_AC_SEND_ACK_RSP_Fb_SET_1		36
62 #define LLC_CONN_AC_SEND_RR_XXX_Xb_SET_0		37
63 #define LLC_CONN_AC_SEND_ACK_XXX_Xb_SET_0		38
64 #define LLC_CONN_AC_SEND_SABME_CMD_Pb_SET_X		39
65 #define LLC_CONN_AC_SEND_UA_RSP_Fb_SET_Pb		40
66 #define LLC_CONN_AC_SEND_UA_RSP_Fb_SET_F_FLAG		41
67 #define LLC_CONN_AC_S_FLAG_SET_0			42
68 #define LLC_CONN_AC_S_FLAG_SET_1			43
69 #define LLC_CONN_AC_START_P_TMR				44
70 #define LLC_CONN_AC_START_ACK_TMR			45
71 #define LLC_CONN_AC_START_REJ_TMR			46
72 #define LLC_CONN_AC_START_ACK_TMR_IF_NOT_RUNNING	47
73 #define LLC_CONN_AC_STOP_ACK_TMR			48
74 #define LLC_CONN_AC_STOP_P_TMR				49
75 #define LLC_CONN_AC_STOP_REJ_TMR			50
76 #define LLC_CONN_AC_STOP_ALL_TMRS			51
77 #define LLC_CONN_AC_STOP_OTHER_TMRS			52
78 #define LLC_CONN_AC_UPDATE_Nr_RECEIVED			53
79 #define LLC_CONN_AC_UPDATE_P_FLAG			54
80 #define LLC_CONN_AC_DATA_FLAG_SET_2			55
81 #define LLC_CONN_AC_DATA_FLAG_SET_0			56
82 #define LLC_CONN_AC_DATA_FLAG_SET_1			57
83 #define LLC_CONN_AC_DATA_FLAG_SET_1_IF_DATA_FLAG_EQ_0	58
84 #define LLC_CONN_AC_P_FLAG_SET_0			59
85 #define LLC_CONN_AC_P_FLAG_SET_P			60
86 #define LLC_CONN_AC_REMOTE_BUSY_SET_0			61
87 #define LLC_CONN_AC_RETRY_CNT_SET_0			62
88 #define LLC_CONN_AC_RETRY_CNT_INC_BY_1			63
89 #define LLC_CONN_AC_Vr_SET_0				64
90 #define LLC_CONN_AC_Vr_INC_BY_1				65
91 #define LLC_CONN_AC_Vs_SET_0				66
92 #define LLC_CONN_AC_Vs_SET_Nr				67
93 #define LLC_CONN_AC_F_FLAG_SET_P			68
94 #define LLC_CONN_AC_STOP_SENDACK_TMR			70
95 #define LLC_CONN_AC_START_SENDACK_TMR_IF_NOT_RUNNING	71
96 
97 typedef int (*llc_conn_action_t)(struct sock *sk, struct sk_buff *skb);
98 
99 int llc_conn_ac_clear_remote_busy(struct sock *sk, struct sk_buff *skb);
100 int llc_conn_ac_conn_ind(struct sock *sk, struct sk_buff *skb);
101 int llc_conn_ac_conn_confirm(struct sock *sk, struct sk_buff *skb);
102 int llc_conn_ac_data_ind(struct sock *sk, struct sk_buff *skb);
103 int llc_conn_ac_disc_ind(struct sock *sk, struct sk_buff *skb);
104 int llc_conn_ac_rst_ind(struct sock *sk, struct sk_buff *skb);
105 int llc_conn_ac_rst_confirm(struct sock *sk, struct sk_buff *skb);
106 int llc_conn_ac_clear_remote_busy_if_f_eq_1(struct sock *sk,
107 					    struct sk_buff *skb);
108 int llc_conn_ac_stop_rej_tmr_if_data_flag_eq_2(struct sock *sk,
109 					       struct sk_buff *skb);
110 int llc_conn_ac_send_disc_cmd_p_set_x(struct sock *sk, struct sk_buff *skb);
111 int llc_conn_ac_send_dm_rsp_f_set_p(struct sock *sk, struct sk_buff *skb);
112 int llc_conn_ac_send_dm_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
113 int llc_conn_ac_send_frmr_rsp_f_set_x(struct sock *sk, struct sk_buff *skb);
114 int llc_conn_ac_resend_frmr_rsp_f_set_0(struct sock *sk, struct sk_buff *skb);
115 int llc_conn_ac_resend_frmr_rsp_f_set_p(struct sock *sk, struct sk_buff *skb);
116 int llc_conn_ac_send_i_cmd_p_set_1(struct sock *sk, struct sk_buff *skb);
117 int llc_conn_ac_send_i_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
118 int llc_conn_ac_resend_i_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
119 int llc_conn_ac_resend_i_xxx_x_set_0_or_send_rr(struct sock *sk,
120 						struct sk_buff *skb);
121 int llc_conn_ac_resend_i_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
122 int llc_conn_ac_send_rej_cmd_p_set_1(struct sock *sk, struct sk_buff *skb);
123 int llc_conn_ac_send_rej_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
124 int llc_conn_ac_send_rej_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
125 int llc_conn_ac_send_rnr_cmd_p_set_1(struct sock *sk, struct sk_buff *skb);
126 int llc_conn_ac_send_rnr_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
127 int llc_conn_ac_send_rnr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
128 int llc_conn_ac_set_remote_busy(struct sock *sk, struct sk_buff *skb);
129 int llc_conn_ac_opt_send_rnr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
130 int llc_conn_ac_send_rr_cmd_p_set_1(struct sock *sk, struct sk_buff *skb);
131 int llc_conn_ac_send_rr_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
132 int llc_conn_ac_send_ack_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
133 int llc_conn_ac_send_rr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
134 int llc_conn_ac_send_ack_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
135 int llc_conn_ac_send_sabme_cmd_p_set_x(struct sock *sk, struct sk_buff *skb);
136 int llc_conn_ac_send_ua_rsp_f_set_p(struct sock *sk, struct sk_buff *skb);
137 int llc_conn_ac_set_s_flag_0(struct sock *sk, struct sk_buff *skb);
138 int llc_conn_ac_set_s_flag_1(struct sock *sk, struct sk_buff *skb);
139 int llc_conn_ac_start_p_timer(struct sock *sk, struct sk_buff *skb);
140 int llc_conn_ac_start_ack_timer(struct sock *sk, struct sk_buff *skb);
141 int llc_conn_ac_start_rej_timer(struct sock *sk, struct sk_buff *skb);
142 int llc_conn_ac_start_ack_tmr_if_not_running(struct sock *sk,
143 					     struct sk_buff *skb);
144 int llc_conn_ac_stop_ack_timer(struct sock *sk, struct sk_buff *skb);
145 int llc_conn_ac_stop_p_timer(struct sock *sk, struct sk_buff *skb);
146 int llc_conn_ac_stop_rej_timer(struct sock *sk, struct sk_buff *skb);
147 int llc_conn_ac_stop_all_timers(struct sock *sk, struct sk_buff *skb);
148 int llc_conn_ac_stop_other_timers(struct sock *sk, struct sk_buff *skb);
149 int llc_conn_ac_upd_nr_received(struct sock *sk, struct sk_buff *skb);
150 int llc_conn_ac_inc_tx_win_size(struct sock *sk, struct sk_buff *skb);
151 int llc_conn_ac_dec_tx_win_size(struct sock *sk, struct sk_buff *skb);
152 int llc_conn_ac_upd_p_flag(struct sock *sk, struct sk_buff *skb);
153 int llc_conn_ac_set_data_flag_2(struct sock *sk, struct sk_buff *skb);
154 int llc_conn_ac_set_data_flag_0(struct sock *sk, struct sk_buff *skb);
155 int llc_conn_ac_set_data_flag_1(struct sock *sk, struct sk_buff *skb);
156 int llc_conn_ac_set_data_flag_1_if_data_flag_eq_0(struct sock *sk,
157 						  struct sk_buff *skb);
158 int llc_conn_ac_set_p_flag_0(struct sock *sk, struct sk_buff *skb);
159 int llc_conn_ac_set_remote_busy_0(struct sock *sk, struct sk_buff *skb);
160 int llc_conn_ac_set_retry_cnt_0(struct sock *sk, struct sk_buff *skb);
161 int llc_conn_ac_set_cause_flag_0(struct sock *sk, struct sk_buff *skb);
162 int llc_conn_ac_set_cause_flag_1(struct sock *sk, struct sk_buff *skb);
163 int llc_conn_ac_inc_retry_cnt_by_1(struct sock *sk, struct sk_buff *skb);
164 int llc_conn_ac_set_vr_0(struct sock *sk, struct sk_buff *skb);
165 int llc_conn_ac_inc_vr_by_1(struct sock *sk, struct sk_buff *skb);
166 int llc_conn_ac_set_vs_0(struct sock *sk, struct sk_buff *skb);
167 int llc_conn_ac_set_vs_nr(struct sock *sk, struct sk_buff *skb);
168 int llc_conn_ac_rst_vs(struct sock *sk, struct sk_buff *skb);
169 int llc_conn_ac_upd_vs(struct sock *sk, struct sk_buff *skb);
170 int llc_conn_disc(struct sock *sk, struct sk_buff *skb);
171 int llc_conn_reset(struct sock *sk, struct sk_buff *skb);
172 int llc_conn_ac_disc_confirm(struct sock *sk, struct sk_buff *skb);
173 u8 llc_circular_between(u8 a, u8 b, u8 c);
174 int llc_conn_ac_send_ack_if_needed(struct sock *sk, struct sk_buff *skb);
175 int llc_conn_ac_adjust_npta_by_rr(struct sock *sk, struct sk_buff *skb);
176 int llc_conn_ac_adjust_npta_by_rnr(struct sock *sk, struct sk_buff *skb);
177 int llc_conn_ac_rst_sendack_flag(struct sock *sk, struct sk_buff *skb);
178 int llc_conn_ac_send_i_as_ack(struct sock *sk, struct sk_buff *skb);
179 
180 void llc_conn_busy_tmr_cb(struct timer_list *t);
181 void llc_conn_pf_cycle_tmr_cb(struct timer_list *t);
182 void llc_conn_ack_tmr_cb(struct timer_list *t);
183 void llc_conn_rej_tmr_cb(struct timer_list *t);
184 
185 void llc_conn_set_p_flag(struct sock *sk, u8 value);
186 #endif /* LLC_C_AC_H */
187