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/*
*
* 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
*
*/
#include "ppp_cp.h"
#define LCP_PROTOCOL 0xc021
#define CHAP_PROTOCOL 0xc223
#define IPCP_PROTO 0x8021
#define PPP_IP_PROTO 0x0021
#define MD5 5
enum ppp_phase {
PPP_PHASE_DEAD = 0, /* Link dead */
PPP_PHASE_ESTABLISHMENT, /* LCP started */
PPP_PHASE_AUTHENTICATION, /* Auth started */
PPP_PHASE_NETWORK, /* IPCP started */
PPP_PHASE_TERMINATION, /* LCP Terminate phase */
};
struct ppp_chap;
struct ppp_net;
struct ppp_header {
guint16 proto;
guint8 info[0];
} __attribute__((packed));
struct packed_short {
guint16 s;
} __attribute__((packed));
struct packed_long {
guint32 l;
} __attribute__((packed));
static inline guint32 __get_unaligned_long(const void *p)
{
const struct packed_long *ptr = p;
return ptr->l;
}
static inline guint16 __get_unaligned_short(const void *p)
{
const struct packed_short *ptr = p;
return ptr->s;
}
static inline void __put_unaligned_short(void *p, guint16 val)
{
struct packed_short *ptr = p;
ptr->s = val;
}
#define get_host_long(p) \
(ntohl(__get_unaligned_long(p)))
#define get_host_short(p) \
(ntohs(__get_unaligned_short(p)))
#define put_network_short(p, val) \
(__put_unaligned_short(p, htons(val)))
#define ppp_info(packet) \
(packet + 4)
#define ppp_proto(packet) \
(get_host_short(packet + 2))
/* LCP related functions */
struct pppcp_data *lcp_new(GAtPPP *ppp);
void lcp_free(struct pppcp_data *lcp);
void lcp_protocol_reject(struct pppcp_data *lcp, guint8 *packet, gsize len);
/* IPCP related functions */
struct pppcp_data *ipcp_new(GAtPPP *ppp);
void ipcp_free(struct pppcp_data *data);
/* CHAP related functions */
struct ppp_chap *ppp_chap_new(GAtPPP *ppp, guint8 method);
void ppp_chap_free(struct ppp_chap *chap);
void ppp_chap_process_packet(struct ppp_chap *chap, guint8 *new_packet);
/* TUN / Network related functions */
struct ppp_net *ppp_net_new(GAtPPP *ppp);
const char *ppp_net_get_interface(struct ppp_net *net);
void ppp_net_process_packet(struct ppp_net *net, guint8 *packet);
void ppp_net_free(struct ppp_net *net);
void ppp_net_set_mtu(struct ppp_net *net, guint16 mtu);
/* PPP functions related to main GAtPPP object */
void ppp_debug(GAtPPP *ppp, const char *str);
void ppp_enter_phase(GAtPPP *ppp, enum ppp_phase phase);
void ppp_transmit(GAtPPP *ppp, guint8 *packet, guint infolen);
void ppp_set_auth(GAtPPP *ppp, const guint8 *auth_data);
void ppp_auth_notify(GAtPPP *ppp, gboolean success);
void ppp_net_up_notify(GAtPPP *ppp, const char *ip,
const char *dns1, const char *dns2);
void ppp_net_down_notify(GAtPPP *ppp);
void ppp_set_recv_accm(GAtPPP *ppp, guint32 accm);
void ppp_set_xmit_accm(GAtPPP *ppp, guint32 accm);
void ppp_set_mtu(GAtPPP *ppp, const guint8 *data);
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