ofono/gatchat/ppp_cp.h

/*
 *
 *  PPP library with GLib integration
 *
 *  Copyright (C) 2009-2010  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;

/* option format */
struct ppp_option {
	guint8 type;
	guint8 length;
	guint8 data[0];
};

enum option_rval {
	OPTION_ACCEPT,
	OPTION_REJECT,
	OPTION_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_action {
	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);
	enum option_rval (*option_scan)(struct pppcp_data *pppcp,
					struct ppp_option *option);
	void (*option_process)(struct pppcp_data *data,
				struct ppp_option *option);
};

struct pppcp_packet {
	guint8 code;
	guint8 identifier;
	guint16 length;
	guint8 data[0];
} __attribute__((packed));

struct pppcp_data *pppcp_new(GAtPPP *ppp, guint16 proto,
				const struct pppcp_action *action);
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);

void pppcp_set_option_strings(struct pppcp_data *pppcp, const char **opts);
void pppcp_set_prefix(struct pppcp_data *pppcp, const char *prefix);

void pppcp_add_config_option(struct pppcp_data *data,
				struct ppp_option *option);
void pppcp_set_valid_codes(struct pppcp_data *data, guint16 codes);
void pppcp_process_packet(gpointer priv, guint8 *new_packet);
void pppcp_send_protocol_reject(struct pppcp_data *data,
				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);