IPCP

IP control protocol. More...

Collaboration diagram for IPCP:

Functions
void	IpcpRxConfReq (NUTDEVICE *dev, uint8_t id, NETBUF *nb)
void	IpcpRxConfAck (NUTDEVICE *dev, uint8_t id, NETBUF *nb)
void	IpcpRxTermReq (NUTDEVICE *dev, uint8_t id, NETBUF *nb)
void	IpcpRxTermAck (NUTDEVICE *dev, uint8_t id, NETBUF *nb)
void	IpcpRxProtRej (NUTDEVICE *dev)
void	NutIpcpInput (NUTDEVICE *dev, NETBUF *nb)
	Handle incoming IPCP packets.
int	NutIpcpOutput (NUTDEVICE *dev, uint8_t code, uint8_t id, NETBUF *nb)
	Send a IPCP packet.
void	IpcpTxConfReq (NUTDEVICE *dev, uint8_t id)

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Detailed Description

IP control protocol.

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Function Documentation

void IpcpRxConfReq	(	NUTDEVICE *	dev,
		uint8_t	id,
		NETBUF *	nb
	)

Definition at line 104 of file ipcpin.c.

References _PPPDCB::dcb_ip_dns1, _PPPDCB::dcb_ip_dns2, _PPPDCB::dcb_ipcp_naks, _PPPDCB::dcb_ipcp_state, _PPPDCB::dcb_remote_ip, _PPPDCB::dcb_reqid, _PPPDCB::dcb_state_chg, _NUTDEVICE::dev_dcb, IPCP_ADDR, IPCP_COMPRESSTYPE, IPCP_MS_DNS1, IPCP_MS_DNS2, IpcpLowerDown(), IpcpTxConfReq(), _NETBUF::nb_ap, NutEventPost(), NutIpcpOutput(), NutNetBufFree(), PPPS_ACKRCVD, PPPS_ACKSENT, PPPS_CLOSED, PPPS_CLOSING, PPPS_OPENED, PPPS_REQSENT, PPPS_STOPPED, PPPS_STOPPING, _NBDATA::sz, XCPOPT::uc, XCPOPT::ul, _NBDATA::vp, XCP_CONFACK, XCP_CONFNAK, XCP_CONFREJ, XCP_TERMACK, XCPOPT::xcpo_, XCPOPT::xcpo_len, and XCPOPT::xcpo_type.

Referenced by NutIpcpInput().

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void IpcpRxConfAck	(	NUTDEVICE *	dev,
		uint8_t	id,
		NETBUF *	nb
	)

Definition at line 258 of file ipcpin.c.

References _PPPDCB::dcb_acked, _PPPDCB::dcb_ip_dns1, _PPPDCB::dcb_ip_dns2, _PPPDCB::dcb_ipcp_state, _PPPDCB::dcb_local_ip, _PPPDCB::dcb_reqid, _PPPDCB::dcb_retries, _PPPDCB::dcb_state_chg, _NUTDEVICE::dev_dcb, IPCP_ADDR, IPCP_COMPRESSTYPE, IPCP_MS_DNS1, IPCP_MS_DNS2, IpcpLowerDown(), IpcpTxConfReq(), _NETBUF::nb_ap, NutEventPost(), NutIpcpOutput(), NutNetBufFree(), PPPS_ACKRCVD, PPPS_ACKSENT, PPPS_CLOSED, PPPS_OPENED, PPPS_REQSENT, PPPS_STOPPED, _NBDATA::sz, XCPOPT::ul, _NBDATA::vp, XCP_TERMACK, XCPOPT::xcpo_, XCPOPT::xcpo_len, and XCPOPT::xcpo_type.

Referenced by NutIpcpInput().

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void IpcpRxTermReq	(	NUTDEVICE *	dev,
		uint8_t	id,
		NETBUF *	nb
	)

Definition at line 429 of file ipcpin.c.

References _PPPDCB::dcb_ipcp_state, _NUTDEVICE::dev_dcb, IpcpLowerDown(), NutIpcpOutput(), NutNetBufFree(), PPPS_ACKRCVD, PPPS_ACKSENT, PPPS_OPENED, PPPS_REQSENT, PPPS_STOPPING, and XCP_TERMACK.

Referenced by NutIpcpInput().

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void IpcpRxTermAck	(	NUTDEVICE *	dev,
		uint8_t	id,
		NETBUF *	nb
	)

Definition at line 451 of file ipcpin.c.

References _PPPDCB::dcb_ipcp_state, _PPPDCB::dcb_reqid, _NUTDEVICE::dev_dcb, IpcpLowerDown(), IpcpTxConfReq(), PPPS_ACKRCVD, PPPS_CLOSED, PPPS_CLOSING, PPPS_OPENED, PPPS_REQSENT, PPPS_STOPPED, and PPPS_STOPPING.

Referenced by NutIpcpInput().

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void IpcpRxProtRej

(

NUTDEVICE *

dev

)

Definition at line 479 of file ipcpin.c.

References _PPPDCB::dcb_ipcp_state, _PPPDCB::dcb_reqid, _NUTDEVICE::dev_dcb, IpcpLowerDown(), NutIpcpOutput(), PPPS_ACKRCVD, PPPS_ACKSENT, PPPS_CLOSED, PPPS_CLOSING, PPPS_OPENED, PPPS_REQSENT, PPPS_STOPPED, PPPS_STOPPING, and XCP_TERMREQ.

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void NutIpcpInput	(	NUTDEVICE *	dev,
		NETBUF *	nb
	)

Handle incoming IPCP packets.

Packets not destined to us or packets with unsupported address type or item length are silently discarded.

Note:

This routine is called by the Ethernet layer on incoming ARP packets. Applications typically do not call this function.

Parameters:

dev	Identifies the device that received the packet.
nb	Pointer to a network buffer structure containing the ARP packet.

Definition at line 533 of file ipcpin.c.

References _PPPDCB::dcb_ipcp_state, _NUTDEVICE::dev_dcb, htons, IpcpRxConfAck(), IpcpRxConfReq(), IpcpRxTermAck(), IpcpRxTermReq(), _NETBUF::nb_ap, _NETBUF::nb_nw, NutNetBufFree(), PPPS_INITIAL, PPPS_STARTING, _NBDATA::sz, _NBDATA::vp, xcphdr::xch_code, xcphdr::xch_id, xcphdr::xch_len, XCP_CODEREJ, XCP_CONFACK, XCP_CONFNAK, XCP_CONFREJ, XCP_CONFREQ, XCP_TERMACK, and XCP_TERMREQ.

Referenced by NutPppInput().

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int NutIpcpOutput	(	NUTDEVICE *	dev,
		uint8_t	code,
		uint8_t	id,
		NETBUF *	nb
	)

Send a IPCP packet.

Note:

Applications typically do not call this function.

Parameters:

dev	Identifies the device to use.
code	Type subcode.
id	Exchange identifier.
nb	Network buffer structure containing the packet to send or null if the packet contains no information. The structure must have been allocated by a previous call NutNetBufAlloc() and will be freed when this function returns.

Returns:

0 on success, -1 in case of any errors.

Definition at line 117 of file ipcpout.c.

References htons, _NETBUF::nb_ap, _NETBUF::nb_nw, _NETBUF::nb_tp, NBAF_NETWORK, NutNetBufAlloc(), NutNetBufFree(), NutPppOutput(), PPP_IPCP, _NBDATA::sz, _NBDATA::vp, xcphdr::xch_code, xcphdr::xch_id, and xcphdr::xch_len.

Referenced by IpcpClose(), IpcpRxConfAck(), IpcpRxConfReq(), IpcpRxProtRej(), IpcpRxTermReq(), IpcpTxConfReq(), LcpRxProtRej(), and NutPppSm().

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void IpcpTxConfReq	(	NUTDEVICE *	dev,
		uint8_t	id
	)

Definition at line 140 of file ipcpout.c.

References _PPPDCB::dcb_acked, _PPPDCB::dcb_ip_dns1, _PPPDCB::dcb_ip_dns2, _PPPDCB::dcb_ipcp_naks, _PPPDCB::dcb_ipcp_state, _PPPDCB::dcb_local_ip, _PPPDCB::dcb_rejects, _NUTDEVICE::dev_dcb, IPCP_ADDR, IPCP_MS_DNS1, IPCP_MS_DNS2, _NETBUF::nb_ap, NBAF_APPLICATION, NutIpcpOutput(), NutNetBufAlloc(), PPPS_ACKRCVD, PPPS_ACKSENT, PPPS_REQSENT, REJ_IPCP_DNS1, REJ_IPCP_DNS2, XCPOPT::ul, _NBDATA::vp, XCP_CONFREQ, XCPOPT::xcpo_, XCPOPT::xcpo_len, and XCPOPT::xcpo_type.

Referenced by IpcpLowerUp(), IpcpOpen(), IpcpRxConfAck(), IpcpRxConfReq(), IpcpRxTermAck(), and NutPppSm().

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