projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
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 <[email protected]> | |
| 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 | extern int llc_conn_ev_conn_req(struct sock *sk, struct sk_buff *skb); | |
| 132 | extern int llc_conn_ev_data_req(struct sock *sk, struct sk_buff *skb); | |
| 133 | extern int llc_conn_ev_disc_req(struct sock *sk, struct sk_buff *skb); | |
| 134 | extern int llc_conn_ev_rst_req(struct sock *sk, struct sk_buff *skb); | |
| 135 | extern int llc_conn_ev_local_busy_detected(struct sock *sk, | |
| 136 | struct sk_buff *skb); | |
| 137 | extern int llc_conn_ev_local_busy_cleared(struct sock *sk, struct sk_buff *skb); | |
| 138 | extern int llc_conn_ev_rx_bad_pdu(struct sock *sk, struct sk_buff *skb); | |
| 139 | extern int llc_conn_ev_rx_disc_cmd_pbit_set_x(struct sock *sk, | |
| 140 | struct sk_buff *skb); | |
| 141 | extern int llc_conn_ev_rx_dm_rsp_fbit_set_x(struct sock *sk, | |
| 142 | struct sk_buff *skb); | |
| 143 | extern int llc_conn_ev_rx_frmr_rsp_fbit_set_x(struct sock *sk, | |
| 144 | struct sk_buff *skb); | |
| 145 | extern int llc_conn_ev_rx_i_cmd_pbit_set_x_inval_ns(struct sock *sk, | |
| 146 | struct sk_buff *skb); | |
| 147 | extern int llc_conn_ev_rx_i_rsp_fbit_set_x(struct sock *sk, | |
| 148 | struct sk_buff *skb); | |
| 149 | extern int llc_conn_ev_rx_i_rsp_fbit_set_x_unexpd_ns(struct sock *sk, | |
| 150 | struct sk_buff *skb); | |
| 151 | extern int llc_conn_ev_rx_i_rsp_fbit_set_x_inval_ns(struct sock *sk, | |
| 152 | struct sk_buff *skb); | |
| 153 | extern int llc_conn_ev_rx_rej_rsp_fbit_set_x(struct sock *sk, | |
| 154 | struct sk_buff *skb); | |
| 155 | extern int llc_conn_ev_rx_sabme_cmd_pbit_set_x(struct sock *sk, | |
| 156 | struct sk_buff *skb); | |
| 157 | extern int llc_conn_ev_rx_ua_rsp_fbit_set_x(struct sock *sk, | |
| 158 | struct sk_buff *skb); | |
| 159 | extern int llc_conn_ev_rx_xxx_cmd_pbit_set_x(struct sock *sk, | |
| 160 | struct sk_buff *skb); | |
| 161 | extern int llc_conn_ev_rx_xxx_rsp_fbit_set_x(struct sock *sk, | |
| 162 | struct sk_buff *skb); | |
| 163 | extern int llc_conn_ev_rx_zzz_cmd_pbit_set_x_inval_nr(struct sock *sk, | |
| 164 | struct sk_buff *skb); | |
| 165 | extern int llc_conn_ev_rx_zzz_rsp_fbit_set_x_inval_nr(struct sock *sk, | |
| 166 | struct sk_buff *skb); | |
| 167 | extern int llc_conn_ev_p_tmr_exp(struct sock *sk, struct sk_buff *skb); | |
| 168 | extern int llc_conn_ev_ack_tmr_exp(struct sock *sk, struct sk_buff *skb); | |
| 169 | extern int llc_conn_ev_rej_tmr_exp(struct sock *sk, struct sk_buff *skb); | |
| 170 | extern int llc_conn_ev_busy_tmr_exp(struct sock *sk, struct sk_buff *skb); | |
| 171 | extern int llc_conn_ev_sendack_tmr_exp(struct sock *sk, struct sk_buff *skb); | |
| 172 | /* NOT_USED functions and their variations */ | |
| 173 | extern int llc_conn_ev_rx_xxx_cmd_pbit_set_1(struct sock *sk, | |
| 174 | struct sk_buff *skb); | |
| 175 | extern int llc_conn_ev_rx_xxx_rsp_fbit_set_1(struct sock *sk, | |
| 176 | struct sk_buff *skb); | |
| 177 | extern int llc_conn_ev_rx_i_cmd_pbit_set_0_unexpd_ns(struct sock *sk, | |
| 178 | struct sk_buff *skb); | |
| 179 | extern int llc_conn_ev_rx_i_cmd_pbit_set_1_unexpd_ns(struct sock *sk, | |
| 180 | struct sk_buff *skb); | |
| 181 | extern int llc_conn_ev_rx_i_cmd_pbit_set_0(struct sock *sk, | |
| 182 | struct sk_buff *skb); | |
| 183 | extern int llc_conn_ev_rx_i_cmd_pbit_set_1(struct sock *sk, | |
| 184 | struct sk_buff *skb); | |
| 185 | extern int llc_conn_ev_rx_i_rsp_fbit_set_0_unexpd_ns(struct sock *sk, | |
| 186 | struct sk_buff *skb); | |
| 187 | extern int llc_conn_ev_rx_i_rsp_fbit_set_1_unexpd_ns(struct sock *sk, | |
| 188 | struct sk_buff *skb); | |
| 189 | extern int llc_conn_ev_rx_i_rsp_fbit_set_0(struct sock *sk, | |
| 190 | struct sk_buff *skb); | |
| 191 | extern int llc_conn_ev_rx_i_rsp_fbit_set_1(struct sock *sk, | |
| 192 | struct sk_buff *skb); | |
| 193 | extern int llc_conn_ev_rx_rr_cmd_pbit_set_0(struct sock *sk, | |
| 194 | struct sk_buff *skb); | |
| 195 | extern int llc_conn_ev_rx_rr_cmd_pbit_set_1(struct sock *sk, | |
| 196 | struct sk_buff *skb); | |
| 197 | extern int llc_conn_ev_rx_rr_rsp_fbit_set_0(struct sock *sk, | |
| 198 | struct sk_buff *skb); | |
| 199 | extern int llc_conn_ev_rx_rr_rsp_fbit_set_1(struct sock *sk, | |
| 200 | struct sk_buff *skb); | |
| 201 | extern int llc_conn_ev_rx_rnr_cmd_pbit_set_0(struct sock *sk, | |
| 202 | struct sk_buff *skb); | |
| 203 | extern int llc_conn_ev_rx_rnr_cmd_pbit_set_1(struct sock *sk, | |
| 204 | struct sk_buff *skb); | |
| 205 | extern int llc_conn_ev_rx_rnr_rsp_fbit_set_0(struct sock *sk, | |
| 206 | struct sk_buff *skb); | |
| 207 | extern int llc_conn_ev_rx_rnr_rsp_fbit_set_1(struct sock *sk, | |
| 208 | struct sk_buff *skb); | |
| 209 | extern int llc_conn_ev_rx_rej_cmd_pbit_set_0(struct sock *sk, | |
| 210 | struct sk_buff *skb); | |
| 211 | extern int llc_conn_ev_rx_rej_cmd_pbit_set_1(struct sock *sk, | |
| 212 | struct sk_buff *skb); | |
| 213 | extern int llc_conn_ev_rx_rej_rsp_fbit_set_0(struct sock *sk, | |
| 214 | struct sk_buff *skb); | |
| 215 | extern int llc_conn_ev_rx_rej_rsp_fbit_set_1(struct sock *sk, | |
| 216 | struct sk_buff *skb); | |
| 217 | extern int llc_conn_ev_rx_any_frame(struct sock *sk, struct sk_buff *skb); | |
| 218 | extern int llc_conn_ev_tx_buffer_full(struct sock *sk, struct sk_buff *skb); | |
| 219 | extern int llc_conn_ev_init_p_f_cycle(struct sock *sk, struct sk_buff *skb); | |
| 220 | ||
| 221 | /* Available connection action qualifiers */ | |
| 222 | extern int llc_conn_ev_qlfy_data_flag_eq_1(struct sock *sk, | |
| 223 | struct sk_buff *skb); | |
| 224 | extern int llc_conn_ev_qlfy_data_flag_eq_0(struct sock *sk, | |
| 225 | struct sk_buff *skb); | |
| 226 | extern int llc_conn_ev_qlfy_data_flag_eq_2(struct sock *sk, | |
| 227 | struct sk_buff *skb); | |
| 228 | extern int llc_conn_ev_qlfy_p_flag_eq_1(struct sock *sk, struct sk_buff *skb); | |
| 229 | extern int llc_conn_ev_qlfy_last_frame_eq_1(struct sock *sk, | |
| 230 | struct sk_buff *skb); | |
| 231 | extern int llc_conn_ev_qlfy_last_frame_eq_0(struct sock *sk, | |
| 232 | struct sk_buff *skb); | |
| 233 | extern int llc_conn_ev_qlfy_p_flag_eq_0(struct sock *sk, struct sk_buff *skb); | |
| 234 | extern int llc_conn_ev_qlfy_p_flag_eq_f(struct sock *sk, struct sk_buff *skb); | |
| 235 | extern int llc_conn_ev_qlfy_remote_busy_eq_0(struct sock *sk, | |
| 236 | struct sk_buff *skb); | |
| 237 | extern int llc_conn_ev_qlfy_remote_busy_eq_1(struct sock *sk, | |
| 238 | struct sk_buff *skb); | |
| 239 | extern int llc_conn_ev_qlfy_retry_cnt_lt_n2(struct sock *sk, | |
| 240 | struct sk_buff *skb); | |
| 241 | extern int llc_conn_ev_qlfy_retry_cnt_gte_n2(struct sock *sk, | |
| 242 | struct sk_buff *skb); | |
| 243 | extern int llc_conn_ev_qlfy_s_flag_eq_1(struct sock *sk, struct sk_buff *skb); | |
| 244 | extern int llc_conn_ev_qlfy_s_flag_eq_0(struct sock *sk, struct sk_buff *skb); | |
| 245 | extern int llc_conn_ev_qlfy_cause_flag_eq_1(struct sock *sk, | |
| 246 | struct sk_buff *skb); | |
| 247 | extern int llc_conn_ev_qlfy_cause_flag_eq_0(struct sock *sk, | |
| 248 | struct sk_buff *skb); | |
| 249 | extern int llc_conn_ev_qlfy_set_status_conn(struct sock *sk, | |
| 250 | struct sk_buff *skb); | |
| 251 | extern int llc_conn_ev_qlfy_set_status_disc(struct sock *sk, | |
| 252 | struct sk_buff *skb); | |
| 253 | extern int llc_conn_ev_qlfy_set_status_failed(struct sock *sk, | |
| 254 | struct sk_buff *skb); | |
| 255 | extern int llc_conn_ev_qlfy_set_status_remote_busy(struct sock *sk, | |
| 256 | struct sk_buff *skb); | |
| 257 | extern int llc_conn_ev_qlfy_set_status_refuse(struct sock *sk, | |
| 258 | struct sk_buff *skb); | |
| 259 | extern int llc_conn_ev_qlfy_set_status_conflict(struct sock *sk, | |
| 260 | struct sk_buff *skb); | |
| 261 | extern int llc_conn_ev_qlfy_set_status_rst_done(struct sock *sk, | |
| 262 | struct sk_buff *skb); | |
| 263 | ||
| 264 | static __inline__ int llc_conn_space(struct sock *sk, struct sk_buff *skb) | |
| 265 | { | |
| 266 | return atomic_read(&sk->sk_rmem_alloc) + skb->truesize < | |
| 267 | (unsigned)sk->sk_rcvbuf; | |
| 268 | } | |
| 269 | #endif /* LLC_C_EV_H */ |