224 lines
6.0 KiB
C
224 lines
6.0 KiB
C
/****************************************************************************
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* apps/netutils/pppd/ppp.h
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* PPP header file
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*
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* Version: 0.1 Original Version June 3, 2000
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* (c)2000 Mycal Labs, All Rights Reserved
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* Copyright (c) 2003, Mike Johnson, Mycal Labs, www.mycal.net
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Mike Johnson/Mycal Labs
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* www.mycal.net.
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* 4. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __APPS_NETUTILS_PPPD_PPP_H
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#define __APPS_NETUTILS_PPPD_PPP_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include "netutils/chat.h"
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#include "ppp_conf.h"
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#include "ahdlc.h"
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#include "lcp.h"
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#include "ipcp.h"
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#include "ppp_arch.h"
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#ifdef CONFIG_NETUTILS_PPPD_PAP
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# include "pap.h"
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#endif
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define CRC_GOOD_VALUE 0xf0b8
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/* ppp_rx_status values */
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#define PPP_RX_IDLE 0
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#define PPP_READY 1
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/* ppp flags */
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#define PPP_ESCAPED 0x1
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#define PPP_RX_READY 0x2
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#define PPP_RX_ASYNC_MAP 0x4
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#define PPP_TX_ASYNC_MAP 0x8
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#define PPP_PFC 0x10
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#define PPP_ACFC 0x20
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/* Supported PPP Protocols */
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#define LCP 0xc021
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#define PAP 0xc023
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#define IPCP 0x8021
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#define IPV4 0x0021
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/* LCP codes packet types */
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#define CONF_REQ 0x1
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#define CONF_ACK 0x2
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#define CONF_NAK 0x3
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#define CONF_REJ 0x4
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#define TERM_REQ 0x5
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#define TERM_ACK 0x6
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#define PROT_REJ 0x8
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#define ECHO_REQ 0x9
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#define ECHO_REP 0xa
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* PPP context definition */
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struct ppp_context_s
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{
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/* IP Buffer */
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uint8_t ip_buf[PPP_RX_BUFFER_SIZE];
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uint16_t ip_len;
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/* Main status */
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uint8_t ppp_flags;
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uint16_t ppp_tx_mru;
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uint8_t ppp_id;
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/* IP timeout */
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uint16_t ip_no_data_time;
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/* Interfaces */
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int if_fd;
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uint8_t ifname[IFNAMSIZ];
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/* Addresses */
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struct in_addr local_ip;
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#ifdef IPCP_GET_PEER_IP
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struct in_addr peer_ip;
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#endif
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#ifdef IPCP_GET_PRI_DNS
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struct in_addr pri_dns_addr;
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#endif
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#ifdef IPCP_GET_SEC_DNS
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struct in_addr sec_dns_addr;
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#endif
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/* LCP */
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uint8_t lcp_state;
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uint8_t lcp_retry;
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time_t lcp_prev_seconds;
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#ifdef CONFIG_NETUTILS_PPPD_PAP
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/* PAP */
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uint8_t pap_state;
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uint8_t pap_retry;
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time_t pap_prev_seconds;
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#endif /* CONFIG_NETUTILS_PPPD_PAP */
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/* IPCP */
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uint8_t ipcp_state;
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uint8_t ipcp_retry;
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time_t ipcp_prev_seconds;
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/* AHDLC */
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uint8_t ahdlc_rx_buffer[PPP_RX_BUFFER_SIZE];
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uint16_t ahdlc_tx_crc; /* Running tx CRC */
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uint16_t ahdlc_rx_crc; /* Running rx CRC */
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uint16_t ahdlc_rx_count; /* Number of rx bytes processed, cur frame */
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uint8_t ahdlc_flags; /* ahdlc state flags, see above */
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uint8_t ahdlc_tx_offline;
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/* Statistics counters */
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#ifdef PPP_STATISTICS
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uint16_t ahdlc_crc_error;
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uint16_t ahdlc_rx_tobig_error;
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uint32_t ppp_rx_frame_count;
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uint32_t ppp_tx_frame_count;
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#endif
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/* Chat controls */
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struct chat_ctl ctl;
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/* PPPD Settings */
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const struct pppd_settings_s *settings;
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};
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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void ppp_init(FAR struct ppp_context_s *ctx);
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void ppp_connect(FAR struct ppp_context_s *ctx);
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void ppp_reconnect(FAR struct ppp_context_s *ctx);
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void ppp_send(FAR struct ppp_context_s *ctx);
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void ppp_poll(FAR struct ppp_context_s *ctx);
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void ppp_upcall(FAR struct ppp_context_s *ctx, uint16_t,
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FAR uint8_t *, uint16_t);
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uint16_t scan_packet(FAR struct ppp_context_s *ctx, uint16_t,
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FAR const uint8_t *list, FAR uint8_t *buffer,
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FAR uint8_t *options, uint16_t len);
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __APPS_NETUTILS_PPPD_PPP_H */
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