llc_c_st.c

linux 内核源代码

/*
 * Array of pointers;
 * one to each transition
 */
static struct llc_conn_state_trans *llc_adm_state_transitions[] = {
	[0] = &llc_adm_state_trans_1,		/* Request */
	[1] = &llc_common_state_trans_end,
	[2] = &llc_common_state_trans_end,	/* local_busy */
	[3] = &llc_common_state_trans_end,	/* init_pf_cycle */
	[4] = &llc_common_state_trans_end,	/* timer */
	[5] = &llc_adm_state_trans_2,		/* Receive frame */
	[6] = &llc_adm_state_trans_3,
	[7] = &llc_adm_state_trans_4,
	[8] = &llc_adm_state_trans_5,
	[9] = &llc_common_state_trans_end,
};

/* LLC_CONN_STATE_SETUP transitions */
/* State transitions for LLC_CONN_EV_RX_SABME_CMD_Pbit_SET_X event */
static llc_conn_action_t llc_setup_actions_1[] = {
	[0] = llc_conn_ac_send_ua_rsp_f_set_p,
	[1] = llc_conn_ac_set_vs_0,
	[2] = llc_conn_ac_set_vr_0,
	[3] = llc_conn_ac_set_s_flag_1,
	[4] = NULL,
};

static struct llc_conn_state_trans llc_setup_state_trans_1 = {
	.ev	       = llc_conn_ev_rx_sabme_cmd_pbit_set_x,
	.next_state    = LLC_CONN_STATE_SETUP,
	.ev_qualifiers = NONE,
	.ev_actions    = llc_setup_actions_1,
};

/* State transitions for LLC_CONN_EV_RX_UA_RSP_Fbit_SET_X event */
static llc_conn_ev_qfyr_t llc_setup_ev_qfyrs_2[] = {
	[0] = llc_conn_ev_qlfy_p_flag_eq_f,
	[1] = llc_conn_ev_qlfy_set_status_conn,
	[2] = NULL,
};

static llc_conn_action_t llc_setup_actions_2[] = {
	[0] = llc_conn_ac_stop_ack_timer,
	[1] = llc_conn_ac_set_vs_0,
	[2] = llc_conn_ac_set_vr_0,
	[3] = llc_conn_ac_upd_p_flag,
	[4] = llc_conn_ac_set_remote_busy_0,
	[5] = llc_conn_ac_conn_confirm,
	[6] = NULL,
};

static struct llc_conn_state_trans llc_setup_state_trans_2 = {
	.ev	       = llc_conn_ev_rx_ua_rsp_fbit_set_x,
	.next_state    = LLC_CONN_STATE_NORMAL,
	.ev_qualifiers = llc_setup_ev_qfyrs_2,
	.ev_actions    = llc_setup_actions_2,
};

/* State transitions for LLC_CONN_EV_ACK_TMR_EXP event */
static llc_conn_ev_qfyr_t llc_setup_ev_qfyrs_3[] = {
	[0] = llc_conn_ev_qlfy_s_flag_eq_1,
	[1] = llc_conn_ev_qlfy_set_status_conn,
	[2] = NULL,
};

static llc_conn_action_t llc_setup_actions_3[] = {
	[0] = llc_conn_ac_set_p_flag_0,
	[1] = llc_conn_ac_set_remote_busy_0,
	[2] = llc_conn_ac_conn_confirm,
	[3] = NULL,
};

static struct llc_conn_state_trans llc_setup_state_trans_3 = {
	.ev	       = llc_conn_ev_ack_tmr_exp,
	.next_state    = LLC_CONN_STATE_NORMAL,
	.ev_qualifiers = llc_setup_ev_qfyrs_3,
	.ev_actions    = llc_setup_actions_3,
};

/* State transitions for LLC_CONN_EV_RX_DISC_CMD_Pbit_SET_X event */
static llc_conn_ev_qfyr_t llc_setup_ev_qfyrs_4[] = {
	[0] = llc_conn_ev_qlfy_set_status_disc,
	[1] = NULL,
};

static llc_conn_action_t llc_setup_actions_4[] = {
	[0] = llc_conn_ac_send_dm_rsp_f_set_p,
	[1] = llc_conn_ac_stop_ack_timer,
	[2] = llc_conn_ac_conn_confirm,
	[3] = llc_conn_disc,
	[4] = NULL,
};

static struct llc_conn_state_trans llc_setup_state_trans_4 = {
	.ev	       = llc_conn_ev_rx_disc_cmd_pbit_set_x,
	.next_state    = LLC_CONN_STATE_ADM,
	.ev_qualifiers = llc_setup_ev_qfyrs_4,
	.ev_actions    = llc_setup_actions_4,
};

/* State transitions for LLC_CONN_EV_RX_DM_RSP_Fbit_SET_X event */
static llc_conn_ev_qfyr_t llc_setup_ev_qfyrs_5[] = {
	[0] = llc_conn_ev_qlfy_set_status_disc,
	[1] = NULL,
};

static llc_conn_action_t llc_setup_actions_5[] = {
	[0] = llc_conn_ac_stop_ack_timer,
	[1] = llc_conn_ac_conn_confirm,
	[2] = llc_conn_disc,
	[3] = NULL,
};

static struct llc_conn_state_trans llc_setup_state_trans_5 = {
	.ev	       = llc_conn_ev_rx_dm_rsp_fbit_set_x,
	.next_state    = LLC_CONN_STATE_ADM,
	.ev_qualifiers = llc_setup_ev_qfyrs_5,
	.ev_actions    = llc_setup_actions_5,
};

/* State transitions for LLC_CONN_EV_ACK_TMR_EXP event */
static llc_conn_ev_qfyr_t llc_setup_ev_qfyrs_7[] = {
	[0] = llc_conn_ev_qlfy_retry_cnt_lt_n2,
	[1] = llc_conn_ev_qlfy_s_flag_eq_0,
	[2] = NULL,
};

static llc_conn_action_t llc_setup_actions_7[] = {
	[0] = llc_conn_ac_send_sabme_cmd_p_set_x,
	[1] = llc_conn_ac_start_ack_timer,
	[2] = llc_conn_ac_inc_retry_cnt_by_1,
	[3] = NULL,
};

static struct llc_conn_state_trans llc_setup_state_trans_7 = {
	.ev	       = llc_conn_ev_ack_tmr_exp,
	.next_state    = LLC_CONN_STATE_SETUP,
	.ev_qualifiers = llc_setup_ev_qfyrs_7,
	.ev_actions    = llc_setup_actions_7,
};

/* State transitions for LLC_CONN_EV_ACK_TMR_EXP event */
static llc_conn_ev_qfyr_t llc_setup_ev_qfyrs_8[] = {
	[0] = llc_conn_ev_qlfy_retry_cnt_gte_n2,
	[1] = llc_conn_ev_qlfy_s_flag_eq_0,
	[2] = llc_conn_ev_qlfy_set_status_failed,
	[3] = NULL,
};

static llc_conn_action_t llc_setup_actions_8[] = {
	[0] = llc_conn_ac_conn_confirm,
	[1] = llc_conn_disc,
	[2] = NULL,
};

static struct llc_conn_state_trans llc_setup_state_trans_8 = {
	.ev	       = llc_conn_ev_ack_tmr_exp,
	.next_state    = LLC_CONN_STATE_ADM,
	.ev_qualifiers = llc_setup_ev_qfyrs_8,
	.ev_actions    = llc_setup_actions_8,
};

/*
 * Array of pointers;
 * one to each transition
 */
static struct llc_conn_state_trans *llc_setup_state_transitions[] = {
	 [0] = &llc_common_state_trans_end,	/* Request */
	 [1] = &llc_common_state_trans_end,	/* local busy */
	 [2] = &llc_common_state_trans_end,	/* init_pf_cycle */
	 [3] = &llc_setup_state_trans_3,	/* Timer */
	 [4] = &llc_setup_state_trans_7,
	 [5] = &llc_setup_state_trans_8,
	 [6] = &llc_common_state_trans_end,
	 [7] = &llc_setup_state_trans_1,	/* Receive frame */
	 [8] = &llc_setup_state_trans_2,
	 [9] = &llc_setup_state_trans_4,
	[10] = &llc_setup_state_trans_5,
	[11] = &llc_common_state_trans_end,
};

/* LLC_CONN_STATE_NORMAL transitions */
/* State transitions for LLC_CONN_EV_DATA_REQ event */
static llc_conn_ev_qfyr_t llc_normal_ev_qfyrs_1[] = {
	[0] = llc_conn_ev_qlfy_remote_busy_eq_0,
	[1] = llc_conn_ev_qlfy_p_flag_eq_0,
	[2] = llc_conn_ev_qlfy_last_frame_eq_0,
	[3] = NULL,
};

static llc_conn_action_t llc_normal_actions_1[] = {
	[0] = llc_conn_ac_send_i_as_ack,
	[1] = llc_conn_ac_start_ack_tmr_if_not_running,
	[2] = NULL,
};

static struct llc_conn_state_trans llc_normal_state_trans_1 = {
	.ev	       = llc_conn_ev_data_req,
	.next_state    = LLC_CONN_STATE_NORMAL,
	.ev_qualifiers = llc_normal_ev_qfyrs_1,
	.ev_actions    = llc_normal_actions_1,
};

/* State transitions for LLC_CONN_EV_DATA_REQ event */
static llc_conn_ev_qfyr_t llc_normal_ev_qfyrs_2[] = {
	[0] = llc_conn_ev_qlfy_remote_busy_eq_0,
	[1] = llc_conn_ev_qlfy_p_flag_eq_0,
	[2] = llc_conn_ev_qlfy_last_frame_eq_1,
	[3] = NULL,
};

static llc_conn_action_t llc_normal_actions_2[] = {
	[0] = llc_conn_ac_send_i_cmd_p_set_1,
	[1] = llc_conn_ac_start_p_timer,
	[2] = NULL,
};

static struct llc_conn_state_trans llc_normal_state_trans_2 = {
	.ev	       = llc_conn_ev_data_req,
	.next_state    = LLC_CONN_STATE_NORMAL,
	.ev_qualifiers = llc_normal_ev_qfyrs_2,
	.ev_actions    = llc_normal_actions_2,
};

/* State transitions for LLC_CONN_EV_DATA_REQ event */
static llc_conn_ev_qfyr_t llc_normal_ev_qfyrs_2_1[] = {
	[0] = llc_conn_ev_qlfy_remote_busy_eq_1,
	[1] = llc_conn_ev_qlfy_set_status_remote_busy,
	[2] = NULL,
};

/* just one member, NULL, .bss zeroes it */
static llc_conn_action_t llc_normal_actions_2_1[1];

static struct llc_conn_state_trans llc_normal_state_trans_2_1 = {
	.ev	       = llc_conn_ev_data_req,
	.next_state    = LLC_CONN_STATE_NORMAL,
	.ev_qualifiers = llc_normal_ev_qfyrs_2_1,
	.ev_actions    = llc_normal_actions_2_1,
};

/* State transitions for LLC_CONN_EV_LOCAL_BUSY_DETECTED event */
static llc_conn_ev_qfyr_t llc_normal_ev_qfyrs_3[] = {
	[0] = llc_conn_ev_qlfy_p_flag_eq_0,
	[1] = NULL,
};

static llc_conn_action_t llc_normal_actions_3[] = {
	[0] = llc_conn_ac_rst_sendack_flag,
	[1] = llc_conn_ac_send_rnr_xxx_x_set_0,
	[2] = llc_conn_ac_set_data_flag_0,
	[3] = NULL,
};

static struct llc_conn_state_trans llc_normal_state_trans_3 = {
	.ev	       = llc_conn_ev_local_busy_detected,
	.next_state    = LLC_CONN_STATE_BUSY,
	.ev_qualifiers = llc_normal_ev_qfyrs_3,
	.ev_actions    = llc_normal_actions_3,
};

/* State transitions for LLC_CONN_EV_LOCAL_BUSY_DETECTED event */
static llc_conn_ev_qfyr_t llc_normal_ev_qfyrs_4[] = {
	[0] = llc_conn_ev_qlfy_p_flag_eq_1,
	[1] = NULL,
};

static llc_conn_action_t llc_normal_actions_4[] = {
	[0] = llc_conn_ac_rst_sendack_flag,
	[1] = llc_conn_ac_send_rnr_xxx_x_set_0,
	[2] = llc_conn_ac_set_data_flag_0,
	[3] = NULL,
};

static struct llc_conn_state_trans llc_normal_state_trans_4 = {
	.ev	       = llc_conn_ev_local_busy_detected,
	.next_state    = LLC_CONN_STATE_BUSY,
	.ev_qualifiers = llc_normal_ev_qfyrs_4,
	.ev_actions    = llc_normal_actions_4,
};

/* State transitions for LLC_CONN_EV_RX_I_CMD_Pbit_SET_0_UNEXPD_Ns event */
static llc_conn_ev_qfyr_t llc_normal_ev_qfyrs_5a[] = {
	[0] = llc_conn_ev_qlfy_p_flag_eq_0,
	[1] = NULL,
};

static llc_conn_action_t llc_normal_actions_5a[] = {
	[0] = llc_conn_ac_rst_sendack_flag,
	[1] = llc_conn_ac_send_rej_xxx_x_set_0,
	[2] = llc_conn_ac_upd_nr_received,
	[3] = llc_conn_ac_upd_p_flag,
	[4] = llc_conn_ac_start_rej_timer,
	[5] = llc_conn_ac_clear_remote_busy_if_f_eq_1,
	[6] = NULL,
};

static struct llc_conn_state_trans llc_normal_state_trans_5a = {
	.ev	       = llc_conn_ev_rx_i_cmd_pbit_set_0_unexpd_ns,
	.next_state    = LLC_CONN_STATE_REJ,
	.ev_qualifiers = llc_normal_ev_qfyrs_5a,
	.ev_actions    = llc_normal_actions_5a,
};

/* State transitions for LLC_CONN_EV_RX_I_RSP_Fbit_SET_0_UNEXPD_Ns event */
static llc_conn_ev_qfyr_t llc_normal_ev_qfyrs_5b[] = {
	[0] = llc_conn_ev_qlfy_p_flag_eq_0,
	[1] = NULL,
};

static llc_conn_action_t llc_normal_actions_5b[] = {
	[0] = llc_conn_ac_rst_sendack_flag,
	[1] = llc_conn_ac_send_rej_xxx_x_set_0,
	[2] = llc_conn_ac_upd_nr_received,
	[3] = llc_conn_ac_upd_p_flag,
	[4] = llc_conn_ac_start_rej_timer,
	[5] = llc_conn_ac_clear_remote_busy_if_f_eq_1,
	[6] = NULL,
};

static struct llc_conn_state_trans llc_normal_state_trans_5b = {
	.ev	       = llc_conn_ev_rx_i_rsp_fbit_set_0_unexpd_ns,
	.next_state    = LLC_CONN_STATE_REJ,
	.ev_qualifiers = llc_normal_ev_qfyrs_5b,
	.ev_actions    = llc_normal_actions_5b,
};

/* State transitions for LLC_CONN_EV_RX_I_RSP_Fbit_SET_1_UNEXPD_Ns event */
static llc_conn_ev_qfyr_t llc_normal_ev_qfyrs_5c[] = {
	[0] = llc_conn_ev_qlfy_p_flag_eq_1,
	[1] = NULL,
};

static llc_conn_action_t llc_normal_actions_5c[] = {
	[0] = llc_conn_ac_rst_sendack_flag,
	[1] = llc_conn_ac_send_rej_xxx_x_set_0,
	[2] = llc_conn_ac_upd_nr_received,
	[3] = llc_conn_ac_upd_p_flag,
	[4] = llc_conn_ac_start_rej_timer,
	[5] = llc_conn_ac_clear_remote_busy_if_f_eq_1,
	[6] = NULL,
};

static struct llc_conn_state_trans llc_normal_state_trans_5c = {
	.ev	       = llc_conn_ev_rx_i_rsp_fbit_set_1_unexpd_ns,
	.next_state    = LLC_CONN_STATE_REJ,
	.ev_qualifiers = llc_normal_ev_qfyrs_5c,
	.ev_actions    = llc_normal_actions_5c,
};

/* State transitions for LLC_CONN_EV_RX_I_CMD_Pbit_SET_0_UNEXPD_Ns event */
static llc_conn_ev_qfyr_t llc_normal_ev_qfyrs_6a[] = {
	[0] = llc_conn_ev_qlfy_p_flag_eq_1,
	[1] = NULL,
};

static llc_conn_action_t llc_normal_actions_6a[] = {
	[0] = llc_conn_ac_rst_sendack_flag,
	[1] = llc_conn_ac_send_rej_xxx_x_set_0,
	[2] = llc_conn_ac_upd_nr_received,
	[3] = llc_conn_ac_start_rej_timer,
	[4] = NULL,
};

static struct llc_conn_state_trans llc_normal_state_trans_6a = {
	.ev	       = llc_conn_ev_rx_i_cmd_pbit_set_0_unexpd_ns,
	.next_state    = LLC_CONN_STATE_REJ,
	.ev_qualifiers = llc_normal_ev_qfyrs_6a,
	.ev_actions    = llc_normal_actions_6a,
};

/* State transitions for LLC_CONN_EV_RX_I_RSP_Fbit_SET_0_UNEXPD_Ns event */
static llc_conn_ev_qfyr_t llc_normal_ev_qfyrs_6b[] = {
	[0] = llc_conn_ev_qlfy_p_flag_eq_1,
	[1] = NULL,
};

static llc_conn_action_t llc_normal_actions_6b[] = {
	[0] = llc_conn_ac_rst_sendack_flag,
	[1] = llc_conn_ac_send_rej_xxx_x_set_0,
	[2] = llc_conn_ac_upd_nr_received,
	[3] = llc_conn_ac_start_rej_timer,
	[4] = NULL,
};

static struct llc_conn_state_trans llc_normal_state_trans_6b = {
	.ev	       = llc_conn_ev_rx_i_rsp_fbit_set_0_unexpd_ns,
	.next_state    = LLC_CONN_STATE_REJ,
	.ev_qualifiers = llc_normal_ev_qfyrs_6b,
	.ev_actions    = llc_normal_actions_6b,
};

/* State transitions for LLC_CONN_EV_RX_I_CMD_Pbit_SET_1_UNEXPD_Ns event */
static llc_conn_action_t llc_normal_actions_7[] = {
	[0] = llc_conn_ac_rst_sendack_flag,
	[1] = llc_conn_ac_send_rej_rsp_f_set_1,
	[2] = llc_conn_ac_upd_nr_received,
	[3] = llc_conn_ac_start_rej_timer,
	[4] = NULL,
};

static struct llc_conn_state_trans llc_normal_state_trans_7 = {
	.ev	       = llc_conn_ev_rx_i_cmd_pbit_set_1_unexpd_ns,
	.next_state    = LLC_CONN_STATE_REJ,
	.ev_qualifiers = NONE,
	.ev_actions    = llc_normal_actions_7,
};

/* State transitions for LLC_CONN_EV_RX_I_RSP_Fbit_SET_X event */
static llc_conn_ev_qfyr_t llc_normal_ev_qfyrs_8a[] = {
	[0] = llc_conn_ev_qlfy_p_flag_eq_f,
	[1] = NULL,
};

static llc_conn_action_t llc_normal_actions_8[] = {
	[0] = llc_conn_ac_inc_vr_by_1,
	[1] = llc_conn_ac_data_ind,
	[2] = llc_conn_ac_upd_p_flag,
	[3] = llc_conn_ac_upd_nr_received,
	[4] = llc_conn_ac_clear_remote_busy_if_f_eq_1,
	[5] = llc_conn_ac_send_ack_if_needed,
	[6] = NULL,
};

static struct llc_conn_state_trans llc_normal_state_trans_8a = {
	.ev	       = llc_conn_ev_rx_i_rsp_fbit_set_x,