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TOMOYO Linux Cross Reference
Linux/include/net/llc_c_ev.h

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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 int llc_conn_ev_sendack_tmr_exp(struct sock *sk, struct sk_buff *skb);
162 /* NOT_USED functions and their variations */
163 int llc_conn_ev_rx_xxx_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb);
164 int llc_conn_ev_rx_xxx_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb);
165 int llc_conn_ev_rx_i_cmd_pbit_set_0_unexpd_ns(struct sock *sk,
166                                               struct sk_buff *skb);
167 int llc_conn_ev_rx_i_cmd_pbit_set_1_unexpd_ns(struct sock *sk,
168                                               struct sk_buff *skb);
169 int llc_conn_ev_rx_i_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb);
170 int llc_conn_ev_rx_i_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb);
171 int llc_conn_ev_rx_i_rsp_fbit_set_0_unexpd_ns(struct sock *sk,
172                                               struct sk_buff *skb);
173 int llc_conn_ev_rx_i_rsp_fbit_set_1_unexpd_ns(struct sock *sk,
174                                               struct sk_buff *skb);
175 int llc_conn_ev_rx_i_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb);
176 int llc_conn_ev_rx_i_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb);
177 int llc_conn_ev_rx_rr_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb);
178 int llc_conn_ev_rx_rr_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb);
179 int llc_conn_ev_rx_rr_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb);
180 int llc_conn_ev_rx_rr_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb);
181 int llc_conn_ev_rx_rnr_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb);
182 int llc_conn_ev_rx_rnr_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb);
183 int llc_conn_ev_rx_rnr_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb);
184 int llc_conn_ev_rx_rnr_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb);
185 int llc_conn_ev_rx_rej_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb);
186 int llc_conn_ev_rx_rej_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb);
187 int llc_conn_ev_rx_rej_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb);
188 int llc_conn_ev_rx_rej_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb);
189 int llc_conn_ev_rx_any_frame(struct sock *sk, struct sk_buff *skb);
190 int llc_conn_ev_tx_buffer_full(struct sock *sk, struct sk_buff *skb);
191 int llc_conn_ev_init_p_f_cycle(struct sock *sk, struct sk_buff *skb);
192 
193 /* Available connection action qualifiers */
194 int llc_conn_ev_qlfy_data_flag_eq_1(struct sock *sk, struct sk_buff *skb);
195 int llc_conn_ev_qlfy_data_flag_eq_0(struct sock *sk, struct sk_buff *skb);
196 int llc_conn_ev_qlfy_data_flag_eq_2(struct sock *sk, struct sk_buff *skb);
197 int llc_conn_ev_qlfy_p_flag_eq_1(struct sock *sk, struct sk_buff *skb);
198 int llc_conn_ev_qlfy_last_frame_eq_1(struct sock *sk, struct sk_buff *skb);
199 int llc_conn_ev_qlfy_last_frame_eq_0(struct sock *sk, struct sk_buff *skb);
200 int llc_conn_ev_qlfy_p_flag_eq_0(struct sock *sk, struct sk_buff *skb);
201 int llc_conn_ev_qlfy_p_flag_eq_f(struct sock *sk, struct sk_buff *skb);
202 int llc_conn_ev_qlfy_remote_busy_eq_0(struct sock *sk, struct sk_buff *skb);
203 int llc_conn_ev_qlfy_remote_busy_eq_1(struct sock *sk, struct sk_buff *skb);
204 int llc_conn_ev_qlfy_retry_cnt_lt_n2(struct sock *sk, struct sk_buff *skb);
205 int llc_conn_ev_qlfy_retry_cnt_gte_n2(struct sock *sk, struct sk_buff *skb);
206 int llc_conn_ev_qlfy_s_flag_eq_1(struct sock *sk, struct sk_buff *skb);
207 int llc_conn_ev_qlfy_s_flag_eq_0(struct sock *sk, struct sk_buff *skb);
208 int llc_conn_ev_qlfy_cause_flag_eq_1(struct sock *sk, struct sk_buff *skb);
209 int llc_conn_ev_qlfy_cause_flag_eq_0(struct sock *sk, struct sk_buff *skb);
210 int llc_conn_ev_qlfy_set_status_conn(struct sock *sk, struct sk_buff *skb);
211 int llc_conn_ev_qlfy_set_status_disc(struct sock *sk, struct sk_buff *skb);
212 int llc_conn_ev_qlfy_set_status_failed(struct sock *sk, struct sk_buff *skb);
213 int llc_conn_ev_qlfy_set_status_remote_busy(struct sock *sk,
214                                             struct sk_buff *skb);
215 int llc_conn_ev_qlfy_set_status_refuse(struct sock *sk, struct sk_buff *skb);
216 int llc_conn_ev_qlfy_set_status_conflict(struct sock *sk, struct sk_buff *skb);
217 int llc_conn_ev_qlfy_set_status_rst_done(struct sock *sk, struct sk_buff *skb);
218 
219 static __inline__ int llc_conn_space(struct sock *sk, struct sk_buff *skb)
220 {
221         return atomic_read(&sk->sk_rmem_alloc) + skb->truesize <
222                (unsigned int)sk->sk_rcvbuf;
223 }
224 #endif /* LLC_C_EV_H */
225 

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