C++ (Cpp) llc_pdu_un_hdr Examples

Example #1

File: llc_c_ev.c Project: FelipeFernandes1988/Alice-1121-Modem

int llc_conn_ev_rx_sabme_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb)
{
	struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);

	return LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_U(pdu) &&
	       LLC_U_PDU_CMD(pdu) == LLC_2_PDU_CMD_SABME ? 0 : 1;
}

Example #2

File: llc_c_ac.c Project: johnny/CobraDroidBeta

int llc_conn_ac_disc_ind(struct sock *sk, struct sk_buff *skb)
{
	struct llc_conn_state_ev *ev = llc_conn_ev(skb);
	u8 reason = 0;
	int rc = 0;

	if (ev->type == LLC_CONN_EV_TYPE_PDU) {
		struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);

		if (LLC_PDU_IS_RSP(pdu) &&
		    LLC_PDU_TYPE_IS_U(pdu) &&
		    LLC_U_PDU_RSP(pdu) == LLC_2_PDU_RSP_DM)
			reason = LLC_DISC_REASON_RX_DM_RSP_PDU;
		else if (LLC_PDU_IS_CMD(pdu) &&
			   LLC_PDU_TYPE_IS_U(pdu) &&
			   LLC_U_PDU_CMD(pdu) == LLC_2_PDU_CMD_DISC)
			reason = LLC_DISC_REASON_RX_DISC_CMD_PDU;
	} else if (ev->type == LLC_CONN_EV_TYPE_ACK_TMR)
		reason = LLC_DISC_REASON_ACK_TMR_EXP;
	else
		rc = -EINVAL;
	if (!rc) {
		ev->reason   = reason;
		ev->ind_prim = LLC_DISC_PRIM;
	}
	return rc;
}

Example #3

File: llc_c_ev.c Project: romanbb/android_kernel_lge_d851

int llc_conn_ev_rx_rej_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb)
{
	const struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);

	return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_S(pdu) &&
	       LLC_S_PDU_RSP(pdu) == LLC_2_PDU_RSP_REJ ? 0 : 1;
}

Example #4

File: llc_c_ev.c Project: romanbb/android_kernel_lge_d851

int llc_conn_ev_rx_disc_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb)
{
	const struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);

	return LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_U(pdu) &&
	       LLC_U_PDU_CMD(pdu) == LLC_2_PDU_CMD_DISC ? 0 : 1;
}

Example #5

File: llc_c_ev.c Project: FelipeFernandes1988/Alice-1121-Modem

int llc_conn_ev_rx_ua_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb)
{
	struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);

	return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_U(pdu) &&
	       LLC_U_PDU_RSP(pdu) == LLC_2_PDU_RSP_UA ? 0 : 1;
}

Example #6

File: stp.c Project: flwh/Alcatel_OT_985_kernel

/* Called under rcu_read_lock from LLC */
static int stp_pdu_rcv(struct sk_buff *skb, struct net_device *dev,
		       struct packet_type *pt, struct net_device *orig_dev)
{
	const struct ethhdr *eh = eth_hdr(skb);
	const struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
	const struct stp_proto *proto;

	if (pdu->ssap != LLC_SAP_BSPAN ||
	    pdu->dsap != LLC_SAP_BSPAN ||
	    pdu->ctrl_1 != LLC_PDU_TYPE_U)
		goto err;

	if (eh->h_dest[5] >= GARP_ADDR_MIN && eh->h_dest[5] <= GARP_ADDR_MAX) {
		proto = rcu_dereference(garp_protos[eh->h_dest[5] -
						    GARP_ADDR_MIN]);
		if (proto &&
		    compare_ether_addr(eh->h_dest, proto->group_address))
			goto err;
	} else
		proto = rcu_dereference(stp_proto);

	if (!proto)
		goto err;

	proto->rcv(proto, skb, dev);
	return 0;

err:
	kfree_skb(skb);
	return 0;
}

Example #7

void llc_pdu_init_as_disc_cmd(struct sk_buff *skb, u8 p_bit)
{
	struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);

	pdu->ctrl_1  = LLC_PDU_TYPE_U;
	pdu->ctrl_1 |= LLC_2_PDU_CMD_DISC;
	pdu->ctrl_1 |= ((p_bit & 1) << 4) & LLC_U_PF_BIT_MASK;
}

Example #8

void llc_pdu_init_as_ua_rsp(struct sk_buff *skb, u8 f_bit)
{
	struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);

	pdu->ctrl_1  = LLC_PDU_TYPE_U;
	pdu->ctrl_1 |= LLC_2_PDU_RSP_UA;
	pdu->ctrl_1 |= ((f_bit & 1) << 4) & LLC_U_PF_BIT_MASK;
}

Example #9

File: llc_s_ev.c Project: CSCLOG/beaglebone

int llc_sap_ev_rx_test_r(struct llc_sap *sap, struct sk_buff *skb)
{
	struct llc_sap_state_ev *ev = llc_sap_ev(skb);
	struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);

	return ev->type == LLC_SAP_EV_TYPE_PDU && LLC_PDU_IS_RSP(pdu) &&
	       LLC_PDU_TYPE_IS_U(pdu) &&
	       LLC_U_PDU_RSP(pdu) == LLC_1_PDU_CMD_TEST ? 0 : 1;
}

Example #10

File: llc_station.c Project: StephenMacras/dsl-n55u-bender

static int llc_stat_ev_rx_null_dsap_test_c(struct sk_buff *skb)
{
	struct llc_station_state_ev *ev = llc_station_ev(skb);
	struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);

	return ev->type == LLC_STATION_EV_TYPE_PDU &&
	       LLC_PDU_IS_CMD(pdu) &&			/* command PDU */
	       LLC_PDU_TYPE_IS_U(pdu) &&		/* U type PDU */
	       LLC_U_PDU_CMD(pdu) == LLC_1_PDU_CMD_TEST &&
	       !pdu->dsap ? 0 : 1;			/* NULL DSAP */
}

Example #11

static void llc_pdu_decode_pdu_type(struct sk_buff *skb, u8 *type)
{
	struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);

	if (pdu->ctrl_1 & 1) {
		if ((pdu->ctrl_1 & LLC_PDU_TYPE_U) == LLC_PDU_TYPE_U)
			*type = LLC_PDU_TYPE_U;
		else
			*type = LLC_PDU_TYPE_S;
	} else
		*type = LLC_PDU_TYPE_I;
}

Example #12

File: llc_station.c Project: StephenMacras/dsl-n55u-bender

static int llc_stat_ev_rx_null_dsap_1_xid_r_xid_r_cnt_eq(struct sk_buff *skb)
{
	struct llc_station_state_ev *ev = llc_station_ev(skb);
	struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);

	return ev->type == LLC_STATION_EV_TYPE_PDU &&
	       LLC_PDU_IS_RSP(pdu) &&			/* response PDU */
	       LLC_PDU_TYPE_IS_U(pdu) &&		/* U type PDU */
	       LLC_U_PDU_RSP(pdu) == LLC_1_PDU_CMD_XID &&
	       !pdu->dsap &&				/* NULL DSAP value */
	       llc_main_station.xid_r_count == 1 ? 0 : 1;
}

Example #13

/**
 *	llc_sap_rtn_pdu - Informs upper layer on rx of an UI, XID or TEST pdu.
 *	@sap: pointer to SAP
 *	@skb: received pdu
 */
void llc_sap_rtn_pdu(struct llc_sap *sap, struct sk_buff *skb)
{
	struct llc_sap_state_ev *ev = llc_sap_ev(skb);
	struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);

	switch (LLC_U_PDU_RSP(pdu)) {
	case LLC_1_PDU_CMD_TEST:
		ev->prim = LLC_TEST_PRIM;	break;
	case LLC_1_PDU_CMD_XID:
		ev->prim = LLC_XID_PRIM;	break;
	case LLC_1_PDU_CMD_UI:
		ev->prim = LLC_DATAUNIT_PRIM;	break;
	}
	ev->ind_cfm_flag = LLC_IND;
}

Example #14

File: llc_c_ev.c Project: FelipeFernandes1988/Alice-1121-Modem

int llc_conn_ev_rx_xxx_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb)
{
	u16 rc = 1;
	struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);

	if (LLC_PDU_IS_CMD(pdu)) {
		if (LLC_PDU_TYPE_IS_I(pdu) || LLC_PDU_TYPE_IS_S(pdu))
			rc = 0;
		else if (LLC_PDU_TYPE_IS_U(pdu))
			switch (LLC_U_PDU_CMD(pdu)) {
			case LLC_2_PDU_CMD_SABME:
			case LLC_2_PDU_CMD_DISC:
				rc = 0;
				break;
			}
	}
	return rc;
}

Example #15

File: llc_c_ev.c Project: FelipeFernandes1988/Alice-1121-Modem

int llc_conn_ev_rx_xxx_yyy(struct sock *sk, struct sk_buff *skb)
{
	u16 rc = 1;
	struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);

	if (LLC_PDU_TYPE_IS_I(pdu) || LLC_PDU_TYPE_IS_S(pdu))
		rc = 0;
	else if (LLC_PDU_TYPE_IS_U(pdu))
		switch (LLC_U_PDU_CMD(pdu)) {
		case LLC_2_PDU_CMD_SABME:
		case LLC_2_PDU_CMD_DISC:
		case LLC_2_PDU_RSP_UA:
		case LLC_2_PDU_RSP_DM:
		case LLC_2_PDU_RSP_FRMR:
			rc = 0;
			break;
		}
	return rc;
}

Example #16

File: llc_c_ac.c Project: FelipeFernandes1988/Alice-1121-Modem

int llc_conn_ac_rst_ind(struct sock *sk, struct sk_buff *skb)
{
	u8 reason = 0;
	int rc = 1;
	struct llc_conn_state_ev *ev = llc_conn_ev(skb);
	struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
	struct llc_opt *llc = llc_sk(sk);

	switch (ev->type) {
	case LLC_CONN_EV_TYPE_PDU:
		if (LLC_PDU_IS_RSP(pdu) &&
		    LLC_PDU_TYPE_IS_U(pdu) &&
		    LLC_U_PDU_RSP(pdu) == LLC_2_PDU_RSP_FRMR) {
			reason = LLC_RESET_REASON_LOCAL;
			rc = 0;
		} else if (LLC_PDU_IS_CMD(pdu) &&
			   LLC_PDU_TYPE_IS_U(pdu) &&
			   LLC_U_PDU_CMD(pdu) == LLC_2_PDU_CMD_SABME) {
			reason = LLC_RESET_REASON_REMOTE;
			rc = 0;
		} else {
			reason = 0;
			rc  = 1;
		}
		break;
	case LLC_CONN_EV_TYPE_ACK_TMR:
	case LLC_CONN_EV_TYPE_P_TMR:
	case LLC_CONN_EV_TYPE_REJ_TMR:
	case LLC_CONN_EV_TYPE_BUSY_TMR:
		if (llc->retry_count > llc->n2) {
			reason = LLC_RESET_REASON_LOCAL;
			rc = 0;
		} else
			rc = 1;
		break;
	}
	if (!rc) {
		ev->reason   = reason;
		ev->ind_prim = LLC_RESET_PRIM;
	}
	return rc;
}

Example #17

File: llc_c_ev.c Project: FelipeFernandes1988/Alice-1121-Modem

int llc_conn_ev_rx_xxx_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb)
{
	u16 rc = 1;
	struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);

	if (LLC_PDU_IS_RSP(pdu)) {
		if (LLC_PDU_TYPE_IS_I(pdu) || LLC_PDU_TYPE_IS_S(pdu))
			rc = 0;
		else if (LLC_PDU_TYPE_IS_U(pdu))
			switch (LLC_U_PDU_RSP(pdu)) {
			case LLC_2_PDU_RSP_UA:
			case LLC_2_PDU_RSP_DM:
			case LLC_2_PDU_RSP_FRMR:
				rc = 0;
				break;
			}
	}

	return rc;
}

Example #18

void llc_pdu_set_cmd_rsp(struct sk_buff *skb, u8 pdu_type)
{
	llc_pdu_un_hdr(skb)->ssap |= pdu_type;
}