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_rsp_as_ack(struct sock *sk, struct sk_buff *skb); 179 int llc_conn_ac_send_i_as_ack(struct sock *sk, struct sk_buff *skb); 180 181 void llc_conn_busy_tmr_cb(struct timer_list *t); 182 void llc_conn_pf_cycle_tmr_cb(struct timer_list *t); 183 void llc_conn_ack_tmr_cb(struct timer_list *t); 184 void llc_conn_rej_tmr_cb(struct timer_list *t); 185 186 void llc_conn_set_p_flag(struct sock *sk, u8 value); 187 #endif /* LLC_C_AC_H */ 188