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/*
* Layer Two Tunnelling Protocol Daemon
* Copyright (C) 1998 Adtran, Inc.
* Copyright (C) 2002 Jeff McAdams
*
* Mark Spencer
*
* This software is distributed under the terms
* of the GPL, which you should have received
* along with this source.
*
* Attribute Value Pair structures and
* definitions
*/
#include "common.h"
struct avp_hdr
{
_u16 length;
_u16 vendorid;
_u16 attr;
};
struct avp
{
int num; /* Number of AVP */
int m; /* Set M? */
int (*handler) (struct tunnel *, struct call *, void *, int);
/* This should handle the AVP
taking a tunnel, call, the data,
and the length of the AVP as
parameters. Should return 0
upon success */
char *description; /* A name, for debugging */
};
extern int handle_avps (struct buffer *buf, struct tunnel *t, struct call *c);
extern char *msgtypes[];
#define VENDOR_ID 0 /* We don't have any extensions
so we shoouldn't have to
worry about this */
/*
* Macros to extract information from length field of AVP
*/
#define AMBIT(len) (len & 0x8000) /* Mandatory bit: If this is
set on an unknown AVP,
we MUST terminate */
#define AHBIT(len) (len & 0x4000) /* Hidden bit: Specifies
information hiding */
#define AZBITS(len) (len & 0x3C00) /* Reserved bits: We must
drop anything with any
of these set. */
#define ALENGTH(len) (len & 0x03FF) /* Length: Lenth of AVP */
#define MAXTIME 300 /* time to wait before checking
Ns and Nr, in ms */
#define MBIT 0x8000 /* for setting */
#define HBIT 0x4000 /* Set on hidden avp's */
#define ASYNC_FRAMING 2
#define SYNC_FRAMING 1
#define ANALOG_BEARER 2
#define DIGITAL_BEARER 1
#define VENDOR_ERROR 6
#define ERROR_RESERVED 3
#define ERROR_LENGTH 2
#define ERROR_NOTEXIST 1
#define ERROR_NORES 4
#define ERROR_INVALID 6
#define RESULT_CLEAR 1
#define RESULT_ERROR 2
#define RESULT_EXISTS 3
extern void encrypt_avp (struct buffer *, _u16, struct tunnel *);
extern int decrypt_avp (char *, struct tunnel *);
extern int message_type_avp (struct tunnel *, struct call *, void *, int);
extern int protocol_version_avp (struct tunnel *, struct call *, void *, int);
extern int framing_caps_avp (struct tunnel *, struct call *, void *, int);
extern int bearer_caps_avp (struct tunnel *, struct call *, void *, int);
extern int firmware_rev_avp (struct tunnel *, struct call *, void *, int);
extern int hostname_avp (struct tunnel *, struct call *, void *, int);
extern int vendor_avp (struct tunnel *, struct call *, void *, int);
extern int assigned_tunnel_avp (struct tunnel *, struct call *, void *, int);
extern int receive_window_size_avp (struct tunnel *, struct call *, void *,
int);
extern int result_code_avp (struct tunnel *, struct call *, void *, int);
extern int assigned_call_avp (struct tunnel *, struct call *, void *, int);
extern int call_serno_avp (struct tunnel *, struct call *, void *, int);
extern int bearer_type_avp (struct tunnel *, struct call *, void *, int);
extern int call_physchan_avp (struct tunnel *, struct call *, void *, int);
extern int dialed_number_avp (struct tunnel *, struct call *, void *, int);
extern int dialing_number_avp (struct tunnel *, struct call *, void *, int);
extern int sub_address_avp (struct tunnel *, struct call *, void *, int);
extern int frame_type_avp (struct tunnel *, struct call *, void *, int);
extern int rx_speed_avp (struct tunnel *, struct call *, void *, int);
extern int tx_speed_avp (struct tunnel *, struct call *, void *, int);
extern int packet_delay_avp (struct tunnel *, struct call *, void *, int);
extern int ignore_avp (struct tunnel *, struct call *, void *, int);
extern int seq_reqd_avp (struct tunnel *, struct call *, void *, int);
extern int challenge_avp (struct tunnel *, struct call *, void *, int);
extern int chalresp_avp (struct tunnel *, struct call *, void *, int);
extern int rand_vector_avp (struct tunnel *, struct call *, void *, int);
extern int add_challenge_avp (struct buffer *, char *, int);
extern int add_avp_rws (struct buffer *, _u16);
extern int add_tunnelid_avp (struct buffer *, _u16);
extern int add_vendor_avp (struct buffer *);
extern int add_hostname_avp (struct buffer *);
extern int add_firmware_avp (struct buffer *);
extern int add_bearer_caps_avp (struct buffer *buf, _u16 caps);
extern int add_frame_caps_avp (struct buffer *buf, _u16 caps);
extern int add_protocol_avp (struct buffer *buf);
extern int add_message_type_avp (struct buffer *buf, _u16 type);
extern int add_result_code_avp (struct buffer *buf, _u16, _u16, char *, int);
extern int add_bearer_avp (struct buffer *, int);
extern int add_frame_avp (struct buffer *, int);
extern int add_rxspeed_avp (struct buffer *, int);
extern int add_txspeed_avp (struct buffer *, int);
extern int add_serno_avp (struct buffer *, unsigned int);
#ifdef TEST_HIDDEN
extern int add_callid_avp (struct buffer *, _u16, struct tunnel *);
#else
extern int add_callid_avp (struct buffer *, _u16);
#endif
extern int add_ppd_avp (struct buffer *, _u16);
extern int add_seqreqd_avp (struct buffer *);
extern int add_chalresp_avp (struct buffer *, char *, int);
extern int add_randvect_avp (struct buffer *, char *, int);
extern int add_minbps_avp (struct buffer *buf, int speed); /* jz: needed for outgoing call */
extern int add_maxbps_avp (struct buffer *buf, int speed); /* jz: needed for outgoing call */
extern int add_number_avp (struct buffer *buf, char *no); /* jz: needed for outgoing call */
