mirror of git://git.sysmocom.de/ofono
127 lines
3.9 KiB
C
127 lines
3.9 KiB
C
/*
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*
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* PPP library with GLib integration
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*
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* Copyright (C) 2009-2011 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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struct pppcp_data;
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struct ppp_option_iter;
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/* option format */
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struct ppp_option {
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guint8 type;
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guint8 length;
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guint8 data[0];
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};
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enum rcr_result {
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RCR_ACCEPT,
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RCR_REJECT,
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RCR_NAK,
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};
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enum pppcp_code {
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PPPCP_CODE_TYPE_CONFIGURE_REQUEST = 1,
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PPPCP_CODE_TYPE_CONFIGURE_ACK,
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PPPCP_CODE_TYPE_CONFIGURE_NAK,
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PPPCP_CODE_TYPE_CONFIGURE_REJECT,
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PPPCP_CODE_TYPE_TERMINATE_REQUEST,
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PPPCP_CODE_TYPE_TERMINATE_ACK,
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PPPCP_CODE_TYPE_CODE_REJECT,
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PPPCP_CODE_TYPE_PROTOCOL_REJECT,
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PPPCP_CODE_TYPE_ECHO_REQUEST,
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PPPCP_CODE_TYPE_ECHO_REPLY,
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PPPCP_CODE_TYPE_DISCARD_REQUEST
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};
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struct pppcp_packet {
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guint8 code;
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guint8 identifier;
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guint16 length;
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guint8 data[0];
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} __attribute__((packed));
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struct ppp_option_iter {
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guint16 max;
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guint16 pos;
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const guint8 *pdata;
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guint8 type;
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guint8 len;
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const guint8 *option_data;
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};
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struct pppcp_proto {
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guint16 proto;
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const char *name;
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guint16 supported_codes;
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void (*this_layer_up)(struct pppcp_data *data);
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void (*this_layer_down)(struct pppcp_data *data);
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void (*this_layer_started)(struct pppcp_data *data);
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void (*this_layer_finished)(struct pppcp_data *data);
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/* Remote side acked these options, we can now use them */
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void (*rca)(struct pppcp_data *pppcp, const struct pppcp_packet *pkt);
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/*
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* Remote side sent us an Conf-Req-Nak or Conf-Req-Rej. The protocol
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* driver should examine the packet and update its options accordingly,
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* then use set_local_options to set a new set of options to try
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* before returning
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*/
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void (*rcn_nak)(struct pppcp_data *pppcp,
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const struct pppcp_packet *pkt);
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void (*rcn_rej)(struct pppcp_data *pppcp,
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const struct pppcp_packet *pkt);
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/*
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* Remote side has sent us a request with its options, return whether
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* we should ack / nak / rej these options. In the case of nak / rej,
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* the list of options to be sent to the peer is given in the
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* new_options & new_len out arguments
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*/
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enum rcr_result (*rcr)(struct pppcp_data *pppcp,
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const struct pppcp_packet *pkt,
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guint8 **new_options, guint16 *new_len);
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};
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void ppp_option_iter_init(struct ppp_option_iter *iter,
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const struct pppcp_packet *packet);
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gboolean ppp_option_iter_next(struct ppp_option_iter *iter);
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guint8 ppp_option_iter_get_type(struct ppp_option_iter *iter);
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guint8 ppp_option_iter_get_length(struct ppp_option_iter *iter);
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const guint8 *ppp_option_iter_get_data(struct ppp_option_iter *iter);
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struct pppcp_data *pppcp_new(GAtPPP *ppp, const struct pppcp_proto *proto,
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gboolean dormant, guint max_failure);
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void pppcp_free(struct pppcp_data *data);
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void pppcp_set_data(struct pppcp_data *pppcp, gpointer data);
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gpointer pppcp_get_data(struct pppcp_data *pppcp);
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GAtPPP *pppcp_get_ppp(struct pppcp_data *pppcp);
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guint8 pppcp_get_code(const guint8 *data);
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void pppcp_set_local_options(struct pppcp_data *data,
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const guint8 *options,
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guint16 len);
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void pppcp_process_packet(gpointer priv, const guint8 *new_packet, gsize len);
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void pppcp_send_protocol_reject(struct pppcp_data *data,
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const guint8 *rejected_packet, gsize len);
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void pppcp_signal_open(struct pppcp_data *data);
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void pppcp_signal_close(struct pppcp_data *data);
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void pppcp_signal_up(struct pppcp_data *data);
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void pppcp_signal_down(struct pppcp_data *data);
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