 95c9617472
			
		
	
	
	95c9617472
	
	
	
		
			
			Use of "unsigned int" is preferred to bare "unsigned" in net tree. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
		
			
				
	
	
		
			269 lines
		
	
	
	
		
			12 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			269 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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| 
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| #include <net/sock.h>
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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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