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Version 0.95

    1: /*
    2:     mtr  --  a network diagnostic tool
    3:     Copyright (C) 1997,1998  Matt Kimball
    4:     Copyright (C) 2005 R.E.Wolff@BitWizard.nl
    5: 
    6:     This program is free software; you can redistribute it and/or modify
    7:     it under the terms of the GNU General Public License version 2 as
    8:     published by the Free Software Foundation.
    9: 
   10:     This program is distributed in the hope that it will be useful,
   11:     but WITHOUT ANY WARRANTY; without even the implied warranty of
   12:     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   13:     GNU General Public License for more details.
   14: 
   15:     You should have received a copy of the GNU General Public License along
   16:     with this program; if not, write to the Free Software Foundation, Inc.,
   17:     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
   18: */
   19: 
   20: #ifndef MTR_MTR_H
   21: #define MTR_MTR_H
   22: 
   23: #include "config.h"
   24: 
   25: #include <stdint.h>
   26: #include <netdb.h>
   27: #include <sys/socket.h>
   28: #include <arpa/inet.h>
   29: 
   30: #ifdef HAVE_NETINET_IN_H
   31: #include <netinet/in.h>
   32: #endif
   33: 
   34: /* Typedefs */
   35: #ifdef ENABLE_IPV6
   36: #define DEFAULT_AF AF_UNSPEC
   37: typedef struct in6_addr ip_t;
   38: #else
   39: #define DEFAULT_AF AF_INET
   40: typedef struct in_addr ip_t;
   41: #endif
   42: 
   43: #ifndef HAVE_TIME_T
   44: typedef int time_t;
   45: #endif
   46: 
   47: /* The __unused__ attribute was added in gcc 3.2.7.  */
   48: #if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
   49: #define ATTRIBUTE_UNUSED __attribute__((__unused__))
   50: #else
   51: #define ATTRIBUTE_UNUSED        /* empty */
   52: #endif
   53: 
   54: /* The __const__ attribute was added in gcc 2.95.  */
   55: #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
   56: #define ATTRIBUTE_CONST __attribute__ ((__const__))
   57: #else
   58: #define ATTRIBUTE_CONST         /* empty */
   59: #endif
   60: 
   61: /* stuff used by display such as report, curses... */
   62: #define MAXFLD 20               /* max stats fields to display */
   63: #define FLD_INDEX_SZ 256
   64: 
   65: /* net related definitions */
   66: #define SAVED_PINGS 200
   67: #define MAX_PATH 8
   68: #define MaxHost 256
   69: #define MinPort 1024
   70: #define MaxPort 65535
   71: #define MAXPACKET 4470          /* largest test packet size */
   72: #define MINPACKET 28            /* 20 bytes IP header and 8 bytes ICMP or UDP */
   73: #define MAXLABELS 8             /* http://kb.juniper.net/KB2190 (+ 3 just in case) */
   74: 
   75: /* Stream Control Transmission Protocol is defined in netinet/in.h */
   76: #ifdef IPPROTO_SCTP
   77: #define HAS_SCTP 1
   78: #endif
   79: 
   80: #ifndef HAVE_SOCKLEN_T
   81: typedef int socklen_t;
   82: #endif
   83: 
   84: struct mtr_ctl {
   85:     int MaxPing;
   86:     float WaitTime;
   87:     float GraceTime;
   88:     const char *Hostname;
   89:     char *InterfaceName;
   90:     char *InterfaceAddress;
   91:     char LocalHostname[128];
   92:     int ipinfo_no;
   93:     int ipinfo_max;
   94:     int cpacketsize;            /* packet size used by ping */
   95:     int bitpattern;             /* packet bit pattern used by ping */
   96:     int tos;                    /* type of service set in ping packet */
   97: #ifdef SO_MARK
   98:     uint32_t mark;
   99: #endif
  100:     ip_t unspec_addr;
  101:     int af;                     /* address family of remote target */
  102:     int mtrtype;                /* type of query packet used */
  103:     int fstTTL;                 /* initial hub(ttl) to ping byMin */
  104:     int maxTTL;                 /* last hub to ping byMin */
  105:     int maxUnknown;             /* stop ping threshold */
  106:     int remoteport;             /* target port for TCP tracing */
  107:     int localport;              /* source port for UDP tracing */
  108:     int probe_timeout;          /* timeout for probe sockets */
  109:     unsigned char fld_active[2 * MAXFLD];       /* SO_MARK to set for ping packet */
  110:     int display_mode;           /* display mode selector */
  111:     int fld_index[FLD_INDEX_SZ];        /* default display field (defined by key in net.h) and order */
  112:     char available_options[MAXFLD];
  113:     int display_offset;         /* only used in text mode */
  114:     void *gtk_data;             /* pointer to hold arbitrary gtk data */
  115:     unsigned int                /* bit field to hold named booleans */
  116:      ForceMaxPing:1,
  117:         use_dns:1,
  118:         show_ips:1,
  119:         enablempls:1, dns:1, reportwide:1, Interactive:1, DisplayMode:5;
  120: };
  121: 
  122: /* dynamic field drawing */
  123: struct fields {
  124:     const unsigned char key;
  125:     const char *descr;
  126:     const char *title;
  127:     const char *format;
  128:     const int length;
  129:     int (
  130:     *net_xxx) (
  131:     int);
  132: };
  133: /* defined in mtr.c */
  134: extern const struct fields data_fields[MAXFLD];
  135: 
  136: /* MPLS label object */
  137: struct mplslen {
  138:     unsigned long label[MAXLABELS];     /* label value */
  139:     uint8_t tc[MAXLABELS];     /* Traffic Class bits */
  140:     uint8_t ttl[MAXLABELS];     /* MPLS TTL */
  141:     char s[MAXLABELS];          /* bottom of stack */
  142:     char labels;                /* how many labels did we get? */
  143: };
  144: 
  145: 
  146: #ifdef USING_CYGWIN
  147: #define running_as_root() 1
  148: #else
  149: #define running_as_root() (getuid() == 0)
  150: #endif
  151: 
  152: int get_addrinfo_from_name(
  153:     struct mtr_ctl *ctl,
  154:     struct addrinfo **res,
  155:     const char *name);
  156: 
  157: #endif                          /* MTR_MTR_H */