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#ifndef LLC_C_EV_H #define LLC_C_EV_H /* * Copyright (c) 1997 by Procom Technology,Inc. * 2001 by Arnaldo Carvalho de Melo <acme@conectiva.com.br> * * This program can be redistributed or modified under the terms of the * GNU General Public License as published by the Free Software Foundation. * This program is distributed without any warranty or implied warranty * of merchantability or fitness for a particular purpose. * * See the GNU General Public License for more details. */ #include <net/sock.h> /* Connection component state transition event qualifiers */ /* Types of events (possible values in 'ev->type') */ #define LLC_CONN_EV_TYPE_SIMPLE 1 #define LLC_CONN_EV_TYPE_CONDITION 2 #define LLC_CONN_EV_TYPE_PRIM 3 #define LLC_CONN_EV_TYPE_PDU 4 /* command/response PDU */ #define LLC_CONN_EV_TYPE_ACK_TMR 5 #define LLC_CONN_EV_TYPE_P_TMR 6 #define LLC_CONN_EV_TYPE_REJ_TMR 7 #define LLC_CONN_EV_TYPE_BUSY_TMR 8 #define LLC_CONN_EV_TYPE_RPT_STATUS 9 #define LLC_CONN_EV_TYPE_SENDACK_TMR 10 #define NBR_CONN_EV 5 /* Connection events which cause state transitions when fully qualified */ #define LLC_CONN_EV_CONN_REQ 1 #define LLC_CONN_EV_CONN_RESP 2 #define LLC_CONN_EV_DATA_REQ 3 #define LLC_CONN_EV_DISC_REQ 4 #define LLC_CONN_EV_RESET_REQ 5 #define LLC_CONN_EV_RESET_RESP 6 #define LLC_CONN_EV_LOCAL_BUSY_DETECTED 7 #define LLC_CONN_EV_LOCAL_BUSY_CLEARED 8 #define LLC_CONN_EV_RX_BAD_PDU 9 #define LLC_CONN_EV_RX_DISC_CMD_Pbit_SET_X 10 #define LLC_CONN_EV_RX_DM_RSP_Fbit_SET_X 11 #define LLC_CONN_EV_RX_FRMR_RSP_Fbit_SET_X 12 #define LLC_CONN_EV_RX_I_CMD_Pbit_SET_X 13 #define LLC_CONN_EV_RX_I_CMD_Pbit_SET_X_UNEXPD_Ns 14 #define LLC_CONN_EV_RX_I_CMD_Pbit_SET_X_INVAL_Ns 15 #define LLC_CONN_EV_RX_I_RSP_Fbit_SET_X 16 #define LLC_CONN_EV_RX_I_RSP_Fbit_SET_X_UNEXPD_Ns 17 #define LLC_CONN_EV_RX_I_RSP_Fbit_SET_X_INVAL_Ns 18 #define LLC_CONN_EV_RX_REJ_CMD_Pbit_SET_X 19 #define LLC_CONN_EV_RX_REJ_RSP_Fbit_SET_X 20 #define LLC_CONN_EV_RX_RNR_CMD_Pbit_SET_X 21 #define LLC_CONN_EV_RX_RNR_RSP_Fbit_SET_X 22 #define LLC_CONN_EV_RX_RR_CMD_Pbit_SET_X 23 #define LLC_CONN_EV_RX_RR_RSP_Fbit_SET_X 24 #define LLC_CONN_EV_RX_SABME_CMD_Pbit_SET_X 25 #define LLC_CONN_EV_RX_UA_RSP_Fbit_SET_X 26 #define LLC_CONN_EV_RX_XXX_CMD_Pbit_SET_X 27 #define LLC_CONN_EV_RX_XXX_RSP_Fbit_SET_X 28 #define LLC_CONN_EV_RX_XXX_YYY 29 #define LLC_CONN_EV_RX_ZZZ_CMD_Pbit_SET_X_INVAL_Nr 30 #define LLC_CONN_EV_RX_ZZZ_RSP_Fbit_SET_X_INVAL_Nr 31 #define LLC_CONN_EV_P_TMR_EXP 32 #define LLC_CONN_EV_ACK_TMR_EXP 33 #define LLC_CONN_EV_REJ_TMR_EXP 34 #define LLC_CONN_EV_BUSY_TMR_EXP 35 #define LLC_CONN_EV_RX_XXX_CMD_Pbit_SET_1 36 #define LLC_CONN_EV_RX_XXX_CMD_Pbit_SET_0 37 #define LLC_CONN_EV_RX_I_CMD_Pbit_SET_0_UNEXPD_Ns 38 #define LLC_CONN_EV_RX_I_RSP_Fbit_SET_0_UNEXPD_Ns 39 #define LLC_CONN_EV_RX_I_RSP_Fbit_SET_1_UNEXPD_Ns 40 #define LLC_CONN_EV_RX_I_CMD_Pbit_SET_1_UNEXPD_Ns 41 #define LLC_CONN_EV_RX_I_CMD_Pbit_SET_0 42 #define LLC_CONN_EV_RX_I_RSP_Fbit_SET_0 43 #define LLC_CONN_EV_RX_I_CMD_Pbit_SET_1 44 #define LLC_CONN_EV_RX_RR_CMD_Pbit_SET_0 45 #define LLC_CONN_EV_RX_RR_RSP_Fbit_SET_0 46 #define LLC_CONN_EV_RX_RR_RSP_Fbit_SET_1 47 #define LLC_CONN_EV_RX_RR_CMD_Pbit_SET_1 48 #define LLC_CONN_EV_RX_RNR_CMD_Pbit_SET_0 49 #define LLC_CONN_EV_RX_RNR_RSP_Fbit_SET_0 50 #define LLC_CONN_EV_RX_RNR_RSP_Fbit_SET_1 51 #define LLC_CONN_EV_RX_RNR_CMD_Pbit_SET_1 52 #define LLC_CONN_EV_RX_REJ_CMD_Pbit_SET_0 53 #define LLC_CONN_EV_RX_REJ_RSP_Fbit_SET_0 54 #define LLC_CONN_EV_RX_REJ_CMD_Pbit_SET_1 55 #define LLC_CONN_EV_RX_I_RSP_Fbit_SET_1 56 #define LLC_CONN_EV_RX_REJ_RSP_Fbit_SET_1 57 #define LLC_CONN_EV_RX_XXX_RSP_Fbit_SET_1 58 #define LLC_CONN_EV_TX_BUFF_FULL 59 #define LLC_CONN_EV_INIT_P_F_CYCLE 100 /* * Connection event qualifiers; for some events a certain combination of * these qualifiers must be TRUE before event recognized valid for state; * these constants act as indexes into the Event Qualifier function * table */ #define LLC_CONN_EV_QFY_DATA_FLAG_EQ_1 1 #define LLC_CONN_EV_QFY_DATA_FLAG_EQ_0 2 #define LLC_CONN_EV_QFY_DATA_FLAG_EQ_2 3 #define LLC_CONN_EV_QFY_P_FLAG_EQ_1 4 #define LLC_CONN_EV_QFY_P_FLAG_EQ_0 5 #define LLC_CONN_EV_QFY_P_FLAG_EQ_Fbit 6 #define LLC_CONN_EV_QFY_REMOTE_BUSY_EQ_0 7 #define LLC_CONN_EV_QFY_RETRY_CNT_LT_N2 8 #define LLC_CONN_EV_QFY_RETRY_CNT_GTE_N2 9 #define LLC_CONN_EV_QFY_S_FLAG_EQ_1 10 #define LLC_CONN_EV_QFY_S_FLAG_EQ_0 11 #define LLC_CONN_EV_QFY_INIT_P_F_CYCLE 12 struct llc_conn_state_ev { u8 type; u8 prim; u8 prim_type; u8 reason; u8 status; u8 ind_prim; u8 cfm_prim; }; static __inline__ struct llc_conn_state_ev *llc_conn_ev(struct sk_buff *skb) { return (struct llc_conn_state_ev *)skb->cb; } typedef int (*llc_conn_ev_t)(struct sock *sk, struct sk_buff *skb); typedef int (*llc_conn_ev_qfyr_t)(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_conn_req(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_data_req(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_disc_req(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rst_req(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_local_busy_detected(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_local_busy_cleared(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_bad_pdu(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_disc_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_dm_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_frmr_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_i_cmd_pbit_set_x_inval_ns(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_i_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_i_rsp_fbit_set_x_unexpd_ns(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_i_rsp_fbit_set_x_inval_ns(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_rej_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_sabme_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_ua_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_xxx_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_xxx_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_zzz_cmd_pbit_set_x_inval_nr(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_zzz_rsp_fbit_set_x_inval_nr(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_p_tmr_exp(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_ack_tmr_exp(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rej_tmr_exp(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_busy_tmr_exp(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_sendack_tmr_exp(struct sock *sk, struct sk_buff *skb); /* NOT_USED functions and their variations */ extern int llc_conn_ev_rx_xxx_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_xxx_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_i_cmd_pbit_set_0_unexpd_ns(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_i_cmd_pbit_set_1_unexpd_ns(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_i_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_i_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_i_rsp_fbit_set_0_unexpd_ns(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_i_rsp_fbit_set_1_unexpd_ns(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_i_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_i_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_rr_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_rr_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_rr_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_rr_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_rnr_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_rnr_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_rnr_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_rnr_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_rej_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_rej_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_rej_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_rej_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_rx_any_frame(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_tx_buffer_full(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_init_p_f_cycle(struct sock *sk, struct sk_buff *skb); /* Available connection action qualifiers */ extern int llc_conn_ev_qlfy_data_flag_eq_1(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_qlfy_data_flag_eq_0(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_qlfy_data_flag_eq_2(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_qlfy_p_flag_eq_1(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_qlfy_last_frame_eq_1(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_qlfy_last_frame_eq_0(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_qlfy_p_flag_eq_0(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_qlfy_p_flag_eq_f(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_qlfy_remote_busy_eq_0(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_qlfy_remote_busy_eq_1(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_qlfy_retry_cnt_lt_n2(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_qlfy_retry_cnt_gte_n2(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_qlfy_s_flag_eq_1(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_qlfy_s_flag_eq_0(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_qlfy_cause_flag_eq_1(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_qlfy_cause_flag_eq_0(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_qlfy_set_status_conn(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_qlfy_set_status_disc(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_qlfy_set_status_failed(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_qlfy_set_status_remote_busy(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_qlfy_set_status_refuse(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_qlfy_set_status_conflict(struct sock *sk, struct sk_buff *skb); extern int llc_conn_ev_qlfy_set_status_rst_done(struct sock *sk, struct sk_buff *skb); static __inline__ int llc_conn_space(struct sock *sk, struct sk_buff *skb) { return atomic_read(&sk->sk_rmem_alloc) + skb->truesize < (unsigned)sk->sk_rcvbuf; }


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