/*

    mtr  --  a network diagnostic tool

    Copyright (C) 1997,1998  Matt Kimball

    Copyright (C) 2005 R.E.Wolff@BitWizard.nl

    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., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#ifndef MTR_MTR_H

#define MTR_MTR_H

#include "config.h"

#include <stdint.h>

#include <sys/socket.h>

#include <arpa/inet.h>

#ifdef HAVE_NETINET_IN_H

#include <netinet/in.h>

#endif

/* Typedefs */

#ifdef ENABLE_IPV6

typedef struct in6_addr ip_t;

#else

typedef struct in_addr ip_t;

#endif

#ifndef HAVE_TIME_T

typedef int time_t;

#endif

/* The __unused__ attribute was added in gcc 3.2.7.  */

#if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)

#define ATTRIBUTE_UNUSED __attribute__((__unused__))

#else

#define ATTRIBUTE_UNUSED        /* empty */

#endif

/* The __const__ attribute was added in gcc 2.95.  */

#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)

#define ATTRIBUTE_CONST __attribute__ ((__const__))

#else

#define ATTRIBUTE_CONST         /* empty */

#endif

/* stuff used by display such as report, curses... */

#define MAXFLD 20               /* max stats fields to display */

#define FLD_INDEX_SZ 256

/* net related definitions */

#define SAVED_PINGS 200

#define MAXPATH 8

#define MaxHost 256

#define MinPort 1024

#define MaxPort 65535

#define MAXPACKET 4470          /* largest test packet size */

#define MINPACKET 28            /* 20 bytes IP header and 8 bytes ICMP or UDP */

#define MAXLABELS 8             /* http://kb.juniper.net/KB2190 (+ 3 just in case) */

/* Stream Control Transmission Protocol is defined in netinet/in.h */

#ifdef IPPROTO_SCTP

#define HAS_SCTP 1

#endif

#ifndef HAVE_SOCKLEN_T

typedef int socklen_t;

#endif

struct mtr_ctl {

    int MaxPing;

    float WaitTime;

    float GraceTime;

    char *Hostname;

    char *InterfaceAddress;

    char LocalHostname[128];

    int ipinfo_no;

    int ipinfo_max;

    int cpacketsize;            /* packet size used by ping */

    int bitpattern;             /* packet bit pattern used by ping */

    int tos;                    /* type of service set in ping packet */

#ifdef SO_MARK

    uint32_t mark;

#endif

    ip_t unspec_addr;

    int af;                     /* address family of remote target */

    int mtrtype;                /* type of query packet used */

    int fstTTL;                 /* initial hub(ttl) to ping byMin */

    int maxTTL;                 /* last hub to ping byMin */

    int maxUnknown;             /* stop ping threshold */

    int remoteport;             /* target port for TCP tracing */

    int localport;              /* source port for UDP tracing */

    int probe_timeout;          /* timeout for probe sockets */

    unsigned char fld_active[2 * MAXFLD];       /* SO_MARK to set for ping packet */

    int display_mode;           /* display mode selector */

    int fld_index[FLD_INDEX_SZ];        /* default display field (defined by key in net.h) and order */

    char available_options[MAXFLD];

    int display_offset;         /* only used in text mode */

    void *gtk_data;             /* pointer to hold arbitrary gtk data */

    unsigned int                /* bit field to hold named booleans */

     ForceMaxPing:1,

        use_dns:1,

        show_ips:1,

        enablempls:1, dns:1, reportwide:1, Interactive:1, DisplayMode:5;

};

/* dynamic field drawing */

struct fields {

    const unsigned char key;

    const char *descr;

    const char *title;

    const char *format;

    const int length;

    int (

    *net_xxx) (

    int);

};

/* defined in mtr.c */

extern const struct fields data_fields[MAXFLD];

/* MPLS label object */

struct mplslen {

    unsigned long label[MAXLABELS];     /* label value */

    uint8_t exp[MAXLABELS];     /* experimental bits */

    uint8_t ttl[MAXLABELS];     /* MPLS TTL */

    char s[MAXLABELS];          /* bottom of stack */

    char labels;                /* how many labels did we get? */

};

#endif                          /* MTR_MTR_H */