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