include/net/llc_c_ac.h

0001 #ifndef LLC_C_AC_H
0002 #define LLC_C_AC_H
0003 /*
0004  * Copyright (c) 1997 by Procom Technology,Inc.
0005  *       2001 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
0006  *
0007  * This program can be redistributed or modified under the terms of the
0008  * GNU General Public License as published by the Free Software Foundation.
0009  * This program is distributed without any warranty or implied warranty
0010  * of merchantability or fitness for a particular purpose.
0011  *
0012  * See the GNU General Public License for more details.
0013  */
0014 /* Connection component state transition actions */
0015 /*
0016  * Connection state transition actions
0017  * (Fb = F bit; Pb = P bit; Xb = X bit)
0018  */
0019
0020 #include <linux/types.h>
0021
0022 struct sk_buff;
0023 struct sock;
0024 struct timer_list;
0025
0026 #define LLC_CONN_AC_CLR_REMOTE_BUSY          1
0027 #define LLC_CONN_AC_CONN_IND                 2
0028 #define LLC_CONN_AC_CONN_CONFIRM             3
0029 #define LLC_CONN_AC_DATA_IND                 4
0030 #define LLC_CONN_AC_DISC_IND                 5
0031 #define LLC_CONN_AC_RESET_IND                6
0032 #define LLC_CONN_AC_RESET_CONFIRM            7
0033 #define LLC_CONN_AC_REPORT_STATUS            8
0034 #define LLC_CONN_AC_CLR_REMOTE_BUSY_IF_Fb_EQ_1       9
0035 #define LLC_CONN_AC_STOP_REJ_TMR_IF_DATA_FLAG_EQ_2  10
0036 #define LLC_CONN_AC_SEND_DISC_CMD_Pb_SET_X      11
0037 #define LLC_CONN_AC_SEND_DM_RSP_Fb_SET_Pb       12
0038 #define LLC_CONN_AC_SEND_DM_RSP_Fb_SET_1        13
0039 #define LLC_CONN_AC_SEND_DM_RSP_Fb_SET_F_FLAG       14
0040 #define LLC_CONN_AC_SEND_FRMR_RSP_Fb_SET_X      15
0041 #define LLC_CONN_AC_RESEND_FRMR_RSP_Fb_SET_0        16
0042 #define LLC_CONN_AC_RESEND_FRMR_RSP_Fb_SET_Pb       17
0043 #define LLC_CONN_AC_SEND_I_CMD_Pb_SET_1         18
0044 #define LLC_CONN_AC_RESEND_I_CMD_Pb_SET_1       19
0045 #define LLC_CONN_AC_RESEND_I_CMD_Pb_SET_1_OR_SEND_RR    20
0046 #define LLC_CONN_AC_SEND_I_XXX_Xb_SET_0         21
0047 #define LLC_CONN_AC_RESEND_I_XXX_Xb_SET_0       22
0048 #define LLC_CONN_AC_RESEND_I_XXX_Xb_SET_0_OR_SEND_RR    23
0049 #define LLC_CONN_AC_RESEND_I_RSP_Fb_SET_1       24
0050 #define LLC_CONN_AC_SEND_REJ_CMD_Pb_SET_1       25
0051 #define LLC_CONN_AC_SEND_REJ_RSP_Fb_SET_1       26
0052 #define LLC_CONN_AC_SEND_REJ_XXX_Xb_SET_0       27
0053 #define LLC_CONN_AC_SEND_RNR_CMD_Pb_SET_1       28
0054 #define LLC_CONN_AC_SEND_RNR_RSP_Fb_SET_1       29
0055 #define LLC_CONN_AC_SEND_RNR_XXX_Xb_SET_0       30
0056 #define LLC_CONN_AC_SET_REMOTE_BUSY         31
0057 #define LLC_CONN_AC_OPTIONAL_SEND_RNR_XXX_Xb_SET_0  32
0058 #define LLC_CONN_AC_SEND_RR_CMD_Pb_SET_1        33
0059 #define LLC_CONN_AC_SEND_ACK_CMD_Pb_SET_1       34
0060 #define LLC_CONN_AC_SEND_RR_RSP_Fb_SET_1        35
0061 #define LLC_CONN_AC_SEND_ACK_RSP_Fb_SET_1       36
0062 #define LLC_CONN_AC_SEND_RR_XXX_Xb_SET_0        37
0063 #define LLC_CONN_AC_SEND_ACK_XXX_Xb_SET_0       38
0064 #define LLC_CONN_AC_SEND_SABME_CMD_Pb_SET_X     39
0065 #define LLC_CONN_AC_SEND_UA_RSP_Fb_SET_Pb       40
0066 #define LLC_CONN_AC_SEND_UA_RSP_Fb_SET_F_FLAG       41
0067 #define LLC_CONN_AC_S_FLAG_SET_0            42
0068 #define LLC_CONN_AC_S_FLAG_SET_1            43
0069 #define LLC_CONN_AC_START_P_TMR             44
0070 #define LLC_CONN_AC_START_ACK_TMR           45
0071 #define LLC_CONN_AC_START_REJ_TMR           46
0072 #define LLC_CONN_AC_START_ACK_TMR_IF_NOT_RUNNING    47
0073 #define LLC_CONN_AC_STOP_ACK_TMR            48
0074 #define LLC_CONN_AC_STOP_P_TMR              49
0075 #define LLC_CONN_AC_STOP_REJ_TMR            50
0076 #define LLC_CONN_AC_STOP_ALL_TMRS           51
0077 #define LLC_CONN_AC_STOP_OTHER_TMRS         52
0078 #define LLC_CONN_AC_UPDATE_Nr_RECEIVED          53
0079 #define LLC_CONN_AC_UPDATE_P_FLAG           54
0080 #define LLC_CONN_AC_DATA_FLAG_SET_2         55
0081 #define LLC_CONN_AC_DATA_FLAG_SET_0         56
0082 #define LLC_CONN_AC_DATA_FLAG_SET_1         57
0083 #define LLC_CONN_AC_DATA_FLAG_SET_1_IF_DATA_FLAG_EQ_0   58
0084 #define LLC_CONN_AC_P_FLAG_SET_0            59
0085 #define LLC_CONN_AC_P_FLAG_SET_P            60
0086 #define LLC_CONN_AC_REMOTE_BUSY_SET_0           61
0087 #define LLC_CONN_AC_RETRY_CNT_SET_0         62
0088 #define LLC_CONN_AC_RETRY_CNT_INC_BY_1          63
0089 #define LLC_CONN_AC_Vr_SET_0                64
0090 #define LLC_CONN_AC_Vr_INC_BY_1             65
0091 #define LLC_CONN_AC_Vs_SET_0                66
0092 #define LLC_CONN_AC_Vs_SET_Nr               67
0093 #define LLC_CONN_AC_F_FLAG_SET_P            68
0094 #define LLC_CONN_AC_STOP_SENDACK_TMR            70
0095 #define LLC_CONN_AC_START_SENDACK_TMR_IF_NOT_RUNNING    71
0096
0097 typedef int (*llc_conn_action_t)(struct sock *sk, struct sk_buff *skb);
0098
0099 int llc_conn_ac_clear_remote_busy(struct sock *sk, struct sk_buff *skb);
0100 int llc_conn_ac_conn_ind(struct sock *sk, struct sk_buff *skb);
0101 int llc_conn_ac_conn_confirm(struct sock *sk, struct sk_buff *skb);
0102 int llc_conn_ac_data_ind(struct sock *sk, struct sk_buff *skb);
0103 int llc_conn_ac_disc_ind(struct sock *sk, struct sk_buff *skb);
0104 int llc_conn_ac_rst_ind(struct sock *sk, struct sk_buff *skb);
0105 int llc_conn_ac_rst_confirm(struct sock *sk, struct sk_buff *skb);
0106 int llc_conn_ac_clear_remote_busy_if_f_eq_1(struct sock *sk,
0107                         struct sk_buff *skb);
0108 int llc_conn_ac_stop_rej_tmr_if_data_flag_eq_2(struct sock *sk,
0109                            struct sk_buff *skb);
0110 int llc_conn_ac_send_disc_cmd_p_set_x(struct sock *sk, struct sk_buff *skb);
0111 int llc_conn_ac_send_dm_rsp_f_set_p(struct sock *sk, struct sk_buff *skb);
0112 int llc_conn_ac_send_dm_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
0113 int llc_conn_ac_send_frmr_rsp_f_set_x(struct sock *sk, struct sk_buff *skb);
0114 int llc_conn_ac_resend_frmr_rsp_f_set_0(struct sock *sk, struct sk_buff *skb);
0115 int llc_conn_ac_resend_frmr_rsp_f_set_p(struct sock *sk, struct sk_buff *skb);
0116 int llc_conn_ac_send_i_cmd_p_set_1(struct sock *sk, struct sk_buff *skb);
0117 int llc_conn_ac_send_i_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
0118 int llc_conn_ac_resend_i_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
0119 int llc_conn_ac_resend_i_xxx_x_set_0_or_send_rr(struct sock *sk,
0120                         struct sk_buff *skb);
0121 int llc_conn_ac_resend_i_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
0122 int llc_conn_ac_send_rej_cmd_p_set_1(struct sock *sk, struct sk_buff *skb);
0123 int llc_conn_ac_send_rej_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
0124 int llc_conn_ac_send_rej_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
0125 int llc_conn_ac_send_rnr_cmd_p_set_1(struct sock *sk, struct sk_buff *skb);
0126 int llc_conn_ac_send_rnr_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
0127 int llc_conn_ac_send_rnr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
0128 int llc_conn_ac_set_remote_busy(struct sock *sk, struct sk_buff *skb);
0129 int llc_conn_ac_opt_send_rnr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
0130 int llc_conn_ac_send_rr_cmd_p_set_1(struct sock *sk, struct sk_buff *skb);
0131 int llc_conn_ac_send_rr_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
0132 int llc_conn_ac_send_ack_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
0133 int llc_conn_ac_send_rr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
0134 int llc_conn_ac_send_ack_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
0135 int llc_conn_ac_send_sabme_cmd_p_set_x(struct sock *sk, struct sk_buff *skb);
0136 int llc_conn_ac_send_ua_rsp_f_set_p(struct sock *sk, struct sk_buff *skb);
0137 int llc_conn_ac_set_s_flag_0(struct sock *sk, struct sk_buff *skb);
0138 int llc_conn_ac_set_s_flag_1(struct sock *sk, struct sk_buff *skb);
0139 int llc_conn_ac_start_p_timer(struct sock *sk, struct sk_buff *skb);
0140 int llc_conn_ac_start_ack_timer(struct sock *sk, struct sk_buff *skb);
0141 int llc_conn_ac_start_rej_timer(struct sock *sk, struct sk_buff *skb);
0142 int llc_conn_ac_start_ack_tmr_if_not_running(struct sock *sk,
0143                          struct sk_buff *skb);
0144 int llc_conn_ac_stop_ack_timer(struct sock *sk, struct sk_buff *skb);
0145 int llc_conn_ac_stop_p_timer(struct sock *sk, struct sk_buff *skb);
0146 int llc_conn_ac_stop_rej_timer(struct sock *sk, struct sk_buff *skb);
0147 int llc_conn_ac_stop_all_timers(struct sock *sk, struct sk_buff *skb);
0148 int llc_conn_ac_stop_other_timers(struct sock *sk, struct sk_buff *skb);
0149 int llc_conn_ac_upd_nr_received(struct sock *sk, struct sk_buff *skb);
0150 int llc_conn_ac_inc_tx_win_size(struct sock *sk, struct sk_buff *skb);
0151 int llc_conn_ac_dec_tx_win_size(struct sock *sk, struct sk_buff *skb);
0152 int llc_conn_ac_upd_p_flag(struct sock *sk, struct sk_buff *skb);
0153 int llc_conn_ac_set_data_flag_2(struct sock *sk, struct sk_buff *skb);
0154 int llc_conn_ac_set_data_flag_0(struct sock *sk, struct sk_buff *skb);
0155 int llc_conn_ac_set_data_flag_1(struct sock *sk, struct sk_buff *skb);
0156 int llc_conn_ac_set_data_flag_1_if_data_flag_eq_0(struct sock *sk,
0157                           struct sk_buff *skb);
0158 int llc_conn_ac_set_p_flag_0(struct sock *sk, struct sk_buff *skb);
0159 int llc_conn_ac_set_remote_busy_0(struct sock *sk, struct sk_buff *skb);
0160 int llc_conn_ac_set_retry_cnt_0(struct sock *sk, struct sk_buff *skb);
0161 int llc_conn_ac_set_cause_flag_0(struct sock *sk, struct sk_buff *skb);
0162 int llc_conn_ac_set_cause_flag_1(struct sock *sk, struct sk_buff *skb);
0163 int llc_conn_ac_inc_retry_cnt_by_1(struct sock *sk, struct sk_buff *skb);
0164 int llc_conn_ac_set_vr_0(struct sock *sk, struct sk_buff *skb);
0165 int llc_conn_ac_inc_vr_by_1(struct sock *sk, struct sk_buff *skb);
0166 int llc_conn_ac_set_vs_0(struct sock *sk, struct sk_buff *skb);
0167 int llc_conn_ac_set_vs_nr(struct sock *sk, struct sk_buff *skb);
0168 int llc_conn_ac_rst_vs(struct sock *sk, struct sk_buff *skb);
0169 int llc_conn_ac_upd_vs(struct sock *sk, struct sk_buff *skb);
0170 int llc_conn_disc(struct sock *sk, struct sk_buff *skb);
0171 int llc_conn_reset(struct sock *sk, struct sk_buff *skb);
0172 int llc_conn_ac_disc_confirm(struct sock *sk, struct sk_buff *skb);
0173 u8 llc_circular_between(u8 a, u8 b, u8 c);
0174 int llc_conn_ac_send_ack_if_needed(struct sock *sk, struct sk_buff *skb);
0175 int llc_conn_ac_adjust_npta_by_rr(struct sock *sk, struct sk_buff *skb);
0176 int llc_conn_ac_adjust_npta_by_rnr(struct sock *sk, struct sk_buff *skb);
0177 int llc_conn_ac_rst_sendack_flag(struct sock *sk, struct sk_buff *skb);
0178 int llc_conn_ac_send_i_rsp_as_ack(struct sock *sk, struct sk_buff *skb);
0179 int llc_conn_ac_send_i_as_ack(struct sock *sk, struct sk_buff *skb);
0180
0181 void llc_conn_busy_tmr_cb(struct timer_list *t);
0182 void llc_conn_pf_cycle_tmr_cb(struct timer_list *t);
0183 void llc_conn_ack_tmr_cb(struct timer_list *t);
0184 void llc_conn_rej_tmr_cb(struct timer_list *t);
0185
0186 void llc_conn_set_p_flag(struct sock *sk, u8 value);
0187 #endif /* LLC_C_AC_H */