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| 1 | #ifndef LLC_C_EV_H |
|---|---|
| 2 | #define LLC_C_EV_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 | |
| 15 | #include <net/sock.h> |
| 16 | |
| 17 | /* Connection component state transition event qualifiers */ |
| 18 | /* Types of events (possible values in 'ev->type') */ |
| 19 | #define LLC_CONN_EV_TYPE_SIMPLE 1 |
| 20 | #define LLC_CONN_EV_TYPE_CONDITION 2 |
| 21 | #define LLC_CONN_EV_TYPE_PRIM 3 |
| 22 | #define LLC_CONN_EV_TYPE_PDU 4 /* command/response PDU */ |
| 23 | #define LLC_CONN_EV_TYPE_ACK_TMR 5 |
| 24 | #define LLC_CONN_EV_TYPE_P_TMR 6 |
| 25 | #define LLC_CONN_EV_TYPE_REJ_TMR 7 |
| 26 | #define LLC_CONN_EV_TYPE_BUSY_TMR 8 |
| 27 | #define LLC_CONN_EV_TYPE_RPT_STATUS 9 |
| 28 | #define LLC_CONN_EV_TYPE_SENDACK_TMR 10 |
| 29 | |
| 30 | #define NBR_CONN_EV 5 |
| 31 | /* Connection events which cause state transitions when fully qualified */ |
| 32 | |
| 33 | #define LLC_CONN_EV_CONN_REQ 1 |
| 34 | #define LLC_CONN_EV_CONN_RESP 2 |
| 35 | #define LLC_CONN_EV_DATA_REQ 3 |
| 36 | #define LLC_CONN_EV_DISC_REQ 4 |
| 37 | #define LLC_CONN_EV_RESET_REQ 5 |
| 38 | #define LLC_CONN_EV_RESET_RESP 6 |
| 39 | #define LLC_CONN_EV_LOCAL_BUSY_DETECTED 7 |
| 40 | #define LLC_CONN_EV_LOCAL_BUSY_CLEARED 8 |
| 41 | #define LLC_CONN_EV_RX_BAD_PDU 9 |
| 42 | #define LLC_CONN_EV_RX_DISC_CMD_Pbit_SET_X 10 |
| 43 | #define LLC_CONN_EV_RX_DM_RSP_Fbit_SET_X 11 |
| 44 | #define LLC_CONN_EV_RX_FRMR_RSP_Fbit_SET_X 12 |
| 45 | #define LLC_CONN_EV_RX_I_CMD_Pbit_SET_X 13 |
| 46 | #define LLC_CONN_EV_RX_I_CMD_Pbit_SET_X_UNEXPD_Ns 14 |
| 47 | #define LLC_CONN_EV_RX_I_CMD_Pbit_SET_X_INVAL_Ns 15 |
| 48 | #define LLC_CONN_EV_RX_I_RSP_Fbit_SET_X 16 |
| 49 | #define LLC_CONN_EV_RX_I_RSP_Fbit_SET_X_UNEXPD_Ns 17 |
| 50 | #define LLC_CONN_EV_RX_I_RSP_Fbit_SET_X_INVAL_Ns 18 |
| 51 | #define LLC_CONN_EV_RX_REJ_CMD_Pbit_SET_X 19 |
| 52 | #define LLC_CONN_EV_RX_REJ_RSP_Fbit_SET_X 20 |
| 53 | #define LLC_CONN_EV_RX_RNR_CMD_Pbit_SET_X 21 |
| 54 | #define LLC_CONN_EV_RX_RNR_RSP_Fbit_SET_X 22 |
| 55 | #define LLC_CONN_EV_RX_RR_CMD_Pbit_SET_X 23 |
| 56 | #define LLC_CONN_EV_RX_RR_RSP_Fbit_SET_X 24 |
| 57 | #define LLC_CONN_EV_RX_SABME_CMD_Pbit_SET_X 25 |
| 58 | #define LLC_CONN_EV_RX_UA_RSP_Fbit_SET_X 26 |
| 59 | #define LLC_CONN_EV_RX_XXX_CMD_Pbit_SET_X 27 |
| 60 | #define LLC_CONN_EV_RX_XXX_RSP_Fbit_SET_X 28 |
| 61 | #define LLC_CONN_EV_RX_XXX_YYY 29 |
| 62 | #define LLC_CONN_EV_RX_ZZZ_CMD_Pbit_SET_X_INVAL_Nr 30 |
| 63 | #define LLC_CONN_EV_RX_ZZZ_RSP_Fbit_SET_X_INVAL_Nr 31 |
| 64 | #define LLC_CONN_EV_P_TMR_EXP 32 |
| 65 | #define LLC_CONN_EV_ACK_TMR_EXP 33 |
| 66 | #define LLC_CONN_EV_REJ_TMR_EXP 34 |
| 67 | #define LLC_CONN_EV_BUSY_TMR_EXP 35 |
| 68 | #define LLC_CONN_EV_RX_XXX_CMD_Pbit_SET_1 36 |
| 69 | #define LLC_CONN_EV_RX_XXX_CMD_Pbit_SET_0 37 |
| 70 | #define LLC_CONN_EV_RX_I_CMD_Pbit_SET_0_UNEXPD_Ns 38 |
| 71 | #define LLC_CONN_EV_RX_I_RSP_Fbit_SET_0_UNEXPD_Ns 39 |
| 72 | #define LLC_CONN_EV_RX_I_RSP_Fbit_SET_1_UNEXPD_Ns 40 |
| 73 | #define LLC_CONN_EV_RX_I_CMD_Pbit_SET_1_UNEXPD_Ns 41 |
| 74 | #define LLC_CONN_EV_RX_I_CMD_Pbit_SET_0 42 |
| 75 | #define LLC_CONN_EV_RX_I_RSP_Fbit_SET_0 43 |
| 76 | #define LLC_CONN_EV_RX_I_CMD_Pbit_SET_1 44 |
| 77 | #define LLC_CONN_EV_RX_RR_CMD_Pbit_SET_0 45 |
| 78 | #define LLC_CONN_EV_RX_RR_RSP_Fbit_SET_0 46 |
| 79 | #define LLC_CONN_EV_RX_RR_RSP_Fbit_SET_1 47 |
| 80 | #define LLC_CONN_EV_RX_RR_CMD_Pbit_SET_1 48 |
| 81 | #define LLC_CONN_EV_RX_RNR_CMD_Pbit_SET_0 49 |
| 82 | #define LLC_CONN_EV_RX_RNR_RSP_Fbit_SET_0 50 |
| 83 | #define LLC_CONN_EV_RX_RNR_RSP_Fbit_SET_1 51 |
| 84 | #define LLC_CONN_EV_RX_RNR_CMD_Pbit_SET_1 52 |
| 85 | #define LLC_CONN_EV_RX_REJ_CMD_Pbit_SET_0 53 |
| 86 | #define LLC_CONN_EV_RX_REJ_RSP_Fbit_SET_0 54 |
| 87 | #define LLC_CONN_EV_RX_REJ_CMD_Pbit_SET_1 55 |
| 88 | #define LLC_CONN_EV_RX_I_RSP_Fbit_SET_1 56 |
| 89 | #define LLC_CONN_EV_RX_REJ_RSP_Fbit_SET_1 57 |
| 90 | #define LLC_CONN_EV_RX_XXX_RSP_Fbit_SET_1 58 |
| 91 | #define LLC_CONN_EV_TX_BUFF_FULL 59 |
| 92 | |
| 93 | #define LLC_CONN_EV_INIT_P_F_CYCLE 100 |
| 94 | /* |
| 95 | * Connection event qualifiers; for some events a certain combination of |
| 96 | * these qualifiers must be TRUE before event recognized valid for state; |
| 97 | * these constants act as indexes into the Event Qualifier function |
| 98 | * table |
| 99 | */ |
| 100 | #define LLC_CONN_EV_QFY_DATA_FLAG_EQ_1 1 |
| 101 | #define LLC_CONN_EV_QFY_DATA_FLAG_EQ_0 2 |
| 102 | #define LLC_CONN_EV_QFY_DATA_FLAG_EQ_2 3 |
| 103 | #define LLC_CONN_EV_QFY_P_FLAG_EQ_1 4 |
| 104 | #define LLC_CONN_EV_QFY_P_FLAG_EQ_0 5 |
| 105 | #define LLC_CONN_EV_QFY_P_FLAG_EQ_Fbit 6 |
| 106 | #define LLC_CONN_EV_QFY_REMOTE_BUSY_EQ_0 7 |
| 107 | #define LLC_CONN_EV_QFY_RETRY_CNT_LT_N2 8 |
| 108 | #define LLC_CONN_EV_QFY_RETRY_CNT_GTE_N2 9 |
| 109 | #define LLC_CONN_EV_QFY_S_FLAG_EQ_1 10 |
| 110 | #define LLC_CONN_EV_QFY_S_FLAG_EQ_0 11 |
| 111 | #define LLC_CONN_EV_QFY_INIT_P_F_CYCLE 12 |
| 112 | |
| 113 | struct llc_conn_state_ev { |
| 114 | u8 type; |
| 115 | u8 prim; |
| 116 | u8 prim_type; |
| 117 | u8 reason; |
| 118 | u8 status; |
| 119 | u8 ind_prim; |
| 120 | u8 cfm_prim; |
| 121 | }; |
| 122 | |
| 123 | static __inline__ struct llc_conn_state_ev *llc_conn_ev(struct sk_buff *skb) |
| 124 | { |
| 125 | return (struct llc_conn_state_ev *)skb->cb; |
| 126 | } |
| 127 | |
| 128 | typedef int (*llc_conn_ev_t)(struct sock *sk, struct sk_buff *skb); |
| 129 | typedef int (*llc_conn_ev_qfyr_t)(struct sock *sk, struct sk_buff *skb); |
| 130 | |
| 131 | int llc_conn_ev_conn_req(struct sock *sk, struct sk_buff *skb); |
| 132 | int llc_conn_ev_data_req(struct sock *sk, struct sk_buff *skb); |
| 133 | int llc_conn_ev_disc_req(struct sock *sk, struct sk_buff *skb); |
| 134 | int llc_conn_ev_rst_req(struct sock *sk, struct sk_buff *skb); |
| 135 | int llc_conn_ev_local_busy_detected(struct sock *sk, struct sk_buff *skb); |
| 136 | int llc_conn_ev_local_busy_cleared(struct sock *sk, struct sk_buff *skb); |
| 137 | int llc_conn_ev_rx_bad_pdu(struct sock *sk, struct sk_buff *skb); |
| 138 | int llc_conn_ev_rx_disc_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb); |
| 139 | int llc_conn_ev_rx_dm_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb); |
| 140 | int llc_conn_ev_rx_frmr_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb); |
| 141 | int llc_conn_ev_rx_i_cmd_pbit_set_x_inval_ns(struct sock *sk, |
| 142 | struct sk_buff *skb); |
| 143 | int llc_conn_ev_rx_i_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb); |
| 144 | int llc_conn_ev_rx_i_rsp_fbit_set_x_unexpd_ns(struct sock *sk, |
| 145 | struct sk_buff *skb); |
| 146 | int llc_conn_ev_rx_i_rsp_fbit_set_x_inval_ns(struct sock *sk, |
| 147 | struct sk_buff *skb); |
| 148 | int llc_conn_ev_rx_rej_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb); |
| 149 | int llc_conn_ev_rx_sabme_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb); |
| 150 | int llc_conn_ev_rx_ua_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb); |
| 151 | int llc_conn_ev_rx_xxx_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb); |
| 152 | int llc_conn_ev_rx_xxx_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb); |
| 153 | int llc_conn_ev_rx_zzz_cmd_pbit_set_x_inval_nr(struct sock *sk, |
| 154 | struct sk_buff *skb); |
| 155 | int llc_conn_ev_rx_zzz_rsp_fbit_set_x_inval_nr(struct sock *sk, |
| 156 | struct sk_buff *skb); |
| 157 | int llc_conn_ev_p_tmr_exp(struct sock *sk, struct sk_buff *skb); |
| 158 | int llc_conn_ev_ack_tmr_exp(struct sock *sk, struct sk_buff *skb); |
| 159 | int llc_conn_ev_rej_tmr_exp(struct sock *sk, struct sk_buff *skb); |
| 160 | int llc_conn_ev_busy_tmr_exp(struct sock *sk, struct sk_buff *skb); |
| 161 | /* NOT_USED functions and their variations */ |
| 162 | int llc_conn_ev_rx_xxx_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb); |
| 163 | int llc_conn_ev_rx_xxx_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb); |
| 164 | int llc_conn_ev_rx_i_cmd_pbit_set_0_unexpd_ns(struct sock *sk, |
| 165 | struct sk_buff *skb); |
| 166 | int llc_conn_ev_rx_i_cmd_pbit_set_1_unexpd_ns(struct sock *sk, |
| 167 | struct sk_buff *skb); |
| 168 | int llc_conn_ev_rx_i_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb); |
| 169 | int llc_conn_ev_rx_i_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb); |
| 170 | int llc_conn_ev_rx_i_rsp_fbit_set_0_unexpd_ns(struct sock *sk, |
| 171 | struct sk_buff *skb); |
| 172 | int llc_conn_ev_rx_i_rsp_fbit_set_1_unexpd_ns(struct sock *sk, |
| 173 | struct sk_buff *skb); |
| 174 | int llc_conn_ev_rx_i_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb); |
| 175 | int llc_conn_ev_rx_i_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb); |
| 176 | int llc_conn_ev_rx_rr_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb); |
| 177 | int llc_conn_ev_rx_rr_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb); |
| 178 | int llc_conn_ev_rx_rr_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb); |
| 179 | int llc_conn_ev_rx_rr_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb); |
| 180 | int llc_conn_ev_rx_rnr_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb); |
| 181 | int llc_conn_ev_rx_rnr_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb); |
| 182 | int llc_conn_ev_rx_rnr_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb); |
| 183 | int llc_conn_ev_rx_rnr_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb); |
| 184 | int llc_conn_ev_rx_rej_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb); |
| 185 | int llc_conn_ev_rx_rej_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb); |
| 186 | int llc_conn_ev_rx_rej_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb); |
| 187 | int llc_conn_ev_rx_rej_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb); |
| 188 | int llc_conn_ev_rx_any_frame(struct sock *sk, struct sk_buff *skb); |
| 189 | int llc_conn_ev_tx_buffer_full(struct sock *sk, struct sk_buff *skb); |
| 190 | int llc_conn_ev_init_p_f_cycle(struct sock *sk, struct sk_buff *skb); |
| 191 | |
| 192 | /* Available connection action qualifiers */ |
| 193 | int llc_conn_ev_qlfy_data_flag_eq_1(struct sock *sk, struct sk_buff *skb); |
| 194 | int llc_conn_ev_qlfy_data_flag_eq_0(struct sock *sk, struct sk_buff *skb); |
| 195 | int llc_conn_ev_qlfy_data_flag_eq_2(struct sock *sk, struct sk_buff *skb); |
| 196 | int llc_conn_ev_qlfy_p_flag_eq_1(struct sock *sk, struct sk_buff *skb); |
| 197 | int llc_conn_ev_qlfy_last_frame_eq_1(struct sock *sk, struct sk_buff *skb); |
| 198 | int llc_conn_ev_qlfy_last_frame_eq_0(struct sock *sk, struct sk_buff *skb); |
| 199 | int llc_conn_ev_qlfy_p_flag_eq_0(struct sock *sk, struct sk_buff *skb); |
| 200 | int llc_conn_ev_qlfy_p_flag_eq_f(struct sock *sk, struct sk_buff *skb); |
| 201 | int llc_conn_ev_qlfy_remote_busy_eq_0(struct sock *sk, struct sk_buff *skb); |
| 202 | int llc_conn_ev_qlfy_remote_busy_eq_1(struct sock *sk, struct sk_buff *skb); |
| 203 | int llc_conn_ev_qlfy_retry_cnt_lt_n2(struct sock *sk, struct sk_buff *skb); |
| 204 | int llc_conn_ev_qlfy_retry_cnt_gte_n2(struct sock *sk, struct sk_buff *skb); |
| 205 | int llc_conn_ev_qlfy_s_flag_eq_1(struct sock *sk, struct sk_buff *skb); |
| 206 | int llc_conn_ev_qlfy_s_flag_eq_0(struct sock *sk, struct sk_buff *skb); |
| 207 | int llc_conn_ev_qlfy_cause_flag_eq_1(struct sock *sk, struct sk_buff *skb); |
| 208 | int llc_conn_ev_qlfy_cause_flag_eq_0(struct sock *sk, struct sk_buff *skb); |
| 209 | int llc_conn_ev_qlfy_set_status_conn(struct sock *sk, struct sk_buff *skb); |
| 210 | int llc_conn_ev_qlfy_set_status_disc(struct sock *sk, struct sk_buff *skb); |
| 211 | int llc_conn_ev_qlfy_set_status_failed(struct sock *sk, struct sk_buff *skb); |
| 212 | int llc_conn_ev_qlfy_set_status_remote_busy(struct sock *sk, |
| 213 | struct sk_buff *skb); |
| 214 | int llc_conn_ev_qlfy_set_status_refuse(struct sock *sk, struct sk_buff *skb); |
| 215 | int llc_conn_ev_qlfy_set_status_conflict(struct sock *sk, struct sk_buff *skb); |
| 216 | int llc_conn_ev_qlfy_set_status_rst_done(struct sock *sk, struct sk_buff *skb); |
| 217 | |
| 218 | static __inline__ int llc_conn_space(struct sock *sk, struct sk_buff *skb) |
| 219 | { |
| 220 | return atomic_read(&sk->sk_rmem_alloc) + skb->truesize < |
| 221 | (unsigned int)sk->sk_rcvbuf; |
| 222 | } |
| 223 | #endif /* LLC_C_EV_H */ |
| 224 |
Warning: This file is not a C or C++ file. It does not have highlighting.