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