/*

mtr -- a network diagnostic tool

Copyright (C) 1997,1998 Matt Kimball

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.

*/

#include <config.h>

#include <strings.h>

#include <unistd.h>

#ifndef NO_CURSES

#include <ctype.h>

#include <stdlib.h>

#include <string.h>

/* Philippe tells me MacOSX needs this before scoket.h... -- REW */

#if defined(HAVE_SYS_TYPES_H)

#include <sys/types.h>

#else

/* If a system doesn't have sys/types.h, lets hope that time_t is an int */

#define time_t int

#endif

#include <sys/socket.h>

#include <netinet/in.h>

#include <arpa/inet.h>

#if defined(HAVE_NCURSES_H)

# include <ncurses.h>

#elif defined(HAVE_NCURSES_CURSES_H)

# include <ncurses/curses.h>

#elif defined(HAVE_CURSES_H)

# include <curses.h>

#elif defined(HAVE_CURSESX_H)

# include <cursesX.h>

#else

# error No curses header file available

#endif

#ifndef HAVE_ATTRON

#define attron(x)

#define attroff(x)

#endif

#ifndef getmaxyx

# define getmaxyx(win,y,x) ((y) = (win)->_maxy + 1, (x) = (win)->_maxx + 1)

#endif

#include "mtr.h"

#include "mtr-curses.h"

#include "display.h"

#include "net.h"

#include "dns.h"

#endif

#include <time.h>

extern char LocalHostname[];

extern int fstTTL;

extern int maxTTL;

extern int cpacketsize;

extern int bitpattern;

extern int tos;

extern float WaitTime;

extern int af;

extern int mtrtype;

void pwcenter(char *str)

{

int maxx, maxy;

int cx;

getmaxyx(stdscr, maxy, maxx);

cx = (signed)(maxx - strlen(str)) / 2;

while(cx-- > 0)

printw(" ");

printw(str);

}

int mtr_curses_keyaction(void)

{

int c = getch();

int i=0;

float f = 0.0;

char buf[MAXFLD+1];

if(c == 'q')

return ActionQuit;

if(c==3)

return ActionQuit;

if (c==12)

return ActionClear;

if ((c==19) || (tolower (c) == 'p'))

return ActionPause;

if ((c==17) || (c == ' '))

return ActionResume;

if(tolower(c) == 'r')

return ActionReset;

if (tolower(c) == 'd')

return ActionDisplay;

if (tolower(c) == 'e')

return ActionMPLS;

if (tolower(c) == 'n')

return ActionDNS;

if (c == '+')

return ActionScrollDown;

if (c == '-')

return ActionScrollUp;

/* more stuffs added by Min */

if (tolower(c) == 's') {

mvprintw(2, 0, "Change Packet Size: %d\n", cpacketsize );

mvprintw(3, 0, "Size Range: %d-%d, < 0:random.\n", MINPACKET, MAXPACKET);

move(2,20);

refresh();

while ( (c=getch ()) != '\n' && i < MAXFLD ) {

attron(A_BOLD); printw("%c", c); attroff(A_BOLD); refresh ();

buf[i++] = c; /* need more checking on 'c' */

}

buf[i] = '\0';

cpacketsize = atoi ( buf );

return ActionNone;

}

if (tolower(c) == 'b') {

mvprintw(2, 0, "Ping Bit Pattern: %d\n", bitpattern );

mvprintw(3, 0, "Pattern Range: 0(0x00)-255(0xff), <0 random.\n");

move(2,18);

refresh();

while ( (c=getch ()) != '\n' && i < MAXFLD ) {

attron(A_BOLD); printw("%c", c); attroff(A_BOLD); refresh ();

buf[i++] = c; /* need more checking on 'c' */

}

buf[i] = '\0';

bitpattern = atoi ( buf );

if( bitpattern > 255 ) { bitpattern = -1; }

return ActionNone;

}

if ( c == 'Q') { /* can not be tolower(c) */

mvprintw(2, 0, "Type of Service(tos): %d\n", tos );

mvprintw(3, 0, "default 0x00, min cost 0x02, rel 0x04,, thr 0x08, low del 0x10...\n");

move(2,22);

refresh();

while ( (c=getch ()) != '\n' && i < MAXFLD ) {

attron(A_BOLD); printw("%c", c); attroff(A_BOLD); refresh();

buf[i++] = c; /* need more checking on 'c' */

}

buf[i] = '\0';

tos = atoi ( buf );

if( tos > 255 || tos <0 ) {

tos = 0;

}

return ActionNone;

}

if (tolower(c) == 'i') {

mvprintw(2, 0, "Interval : %0.0f\n\n", WaitTime );

move(2,11);

refresh();

while ( (c=getch ()) != '\n' && i < MAXFLD ) {

attron(A_BOLD); printw("%c", c); attroff(A_BOLD); refresh();

buf[i++] = c; /* need more checking on 'c' */

}

buf[i] = '\0';

f = atof( buf );

if (f <= 0.0) return ActionNone;

if (getuid() != 0 && f < 1.0)

return ActionNone;

WaitTime = f;

return ActionNone;

}

if (tolower(c) == 'f') {

mvprintw(2, 0, "First TTL: %d\n\n", fstTTL );

move(2,11);

refresh();

while ( (c=getch ()) != '\n' && i < MAXFLD ) {

attron(A_BOLD); printw("%c", c); attroff(A_BOLD); refresh();

buf[i++] = c; /* need more checking on 'c' */

}

buf[i] = '\0';

i = atoi( buf );

if ( i < 1 || i> maxTTL ) return ActionNone;

fstTTL = i;

return ActionNone;

}

if (tolower(c) == 'm') {

mvprintw(2, 0, "Max TTL: %d\n\n", maxTTL );

move(2,9);

refresh();

while ( (c=getch ()) != '\n' && i < MAXFLD ) {

attron(A_BOLD); printw("%c", c); attroff(A_BOLD); refresh();

buf[i++] = c; /* need more checking on 'c' */

}

buf[i] = '\0';

i = atoi( buf );

if ( i < fstTTL || i>(MaxHost-1) ) return ActionNone;

maxTTL = i;

return ActionNone;

}

/* fields to display & their ordering -Min */

if (tolower(c) == 'o') {

mvprintw(2, 0, "Fields: %s\n\n", fld_active );

for( i=0; i<MAXFLD; i++ ){

if( data_fields[i].descr != NULL )

printw( " %s\n", data_fields[i].descr);

}

printw("\n");

move(2,8); /* length of "Fields: " */

refresh();

i = 0;

while ( (c=getch ()) != '\n' && i < MAXFLD ) {

if( strchr(available_options, c) ) {

attron(A_BOLD); printw("%c", c); attroff(A_BOLD); refresh();

buf[i++] = c; /* Only permit values in "available_options" be entered */

} else {

printf("\a"); /* Illegal character. Beep, ring the bell. */

}

}

buf[i] = '\0';

if ( strlen( buf ) > 0 ) strcpy( fld_active, buf );

return ActionNone;

}

if (tolower(c) == 'j') {

if( index(fld_active, 'N') ) {

strcpy(fld_active, "DR AGJMXI"); /* GeoMean and jitter */

} else {

strcpy(fld_active, "LS NABWV"); /* default */

}

return ActionNone;

}

if (tolower(c) == 'u') {

switch ( mtrtype ) {

case IPPROTO_ICMP:

mtrtype = IPPROTO_UDP;

break;

case IPPROTO_UDP:

mtrtype = IPPROTO_ICMP;

break;

}

return ActionNone;

}

/* reserve to display help message -Min */

if (tolower(c) == '?'|| tolower(c) == 'h') {

mvprintw(2, 0, "Command:\n" );

printw(" ?|h help\n" );

printw(" d switching display mode\n" );

printw(" e toggle MPLS information on/off\n" );

printw(" n toggle DNS on/off\n" );

printw(" o str set the columns to display, default str='LRS N BAWV'\n" );

printw(" j toggle latency(LS NABWV)/jitter(DR AGJMXI) stats\n" );

printw(" c <n> report cycle n, default n=infinite\n" );

printw(" i <n> set the ping interval to n seconds, default n=1\n" );

printw(" f <n> set the initial time-to-live(ttl), default n=1\n" );

printw(" m <n> set the max time-to-live, default n= # of hops\n" );

printw(" s <n> set the packet size to n or random(n<0)\n" );

printw(" b <c> set ping bit pattern to c(0..255) or random(c<0)\n" );

printw(" Q <t> set ping packet's TOS to t\n" );

printw(" u switch between ICMP ECHO and UDP datagrams\n\n" );

mvprintw(16, 0, " press any key to go back..." );

getch(); /* get any key */

return ActionNone;

}

return ActionNone; /* ignore unknown input */

}

void mtr_curses_hosts(int startstat)

{

int max;

int at;

struct mplslen *mpls, *mplss;

ip_t *addr, *addrs;

int y, x;

char *name;

int i, j, k;

int hd_len;

char buf[1024];

max = net_max();

for(at = net_min () + display_offset; at < max; at++) {

printw("%2d. ", at + 1);

addr = net_addr(at);

mpls = net_mpls(at);

if( addrcmp( (void *) addr, (void *) &unspec_addr, af ) != 0 ) {

name = dns_lookup(addr);

if (! net_up(at))

attron(A_BOLD);

if(name != NULL) {

printw("%s", name);

} else {

printw("%s", strlongip( addr ) );

}

attroff(A_BOLD);

getyx(stdscr, y, x);

move(y, startstat);

/* net_xxx returns times in usecs. Just display millisecs */

/* changedByMin */

hd_len = 0;

for( i=0; i<MAXFLD; i++ ) {

/* Ignore options that don't exist */

/* On the other hand, we now check the input side. Shouldn't happen,

can't be careful enough. */

j = fld_index[fld_active[i]];

if (j == -1) continue;

/* temporay hack for stats usec to ms... */

if( index( data_fields[j].format, 'f' ) ) {

sprintf(buf + hd_len, data_fields[j].format,

data_fields[j].net_xxx(at) /1000.0 );

} else {

sprintf(buf + hd_len, data_fields[j].format,

data_fields[j].net_xxx(at) );

}

hd_len += data_fields[j].length;

}

buf[hd_len] = 0;

printw("%s", buf);

for (k=0; k < mpls->labels && enablempls; k++) {

if((k+1 < mpls->labels) || (mpls->labels == 1)) {

/* if we have more labels */

printw("\n [MPLS: Lbl %lu Exp %u S %u TTL %u]", mpls->label[k], mpls->exp[k], mpls->s[k], mpls->ttl[k]);

} else {

/* bottom label */

printw("\n [MPLS: Lbl %lu Exp %u S %u TTL %u]", mpls->label[k], mpls->exp[k], mpls->s[k], mpls->ttl[k]);

}

}

/* Multi path by Min */

for (i=0; i < MAXPATH; i++ ) {

addrs = net_addrs(at, i);

mplss = net_mplss(at, i);

if ( addrcmp( (void *) addrs, (void *) addr, af ) == 0 ) continue;

if ( addrcmp( (void *) addrs, (void *) &unspec_addr, af ) == 0 ) break;

name = dns_lookup(addrs);

if (! net_up(at)) attron(A_BOLD);

if (name != NULL) {

printw("\n %s", name);

} else {

printw("\n %s", strlongip( addrs ) );

}

for (k=0; k < mplss->labels && enablempls; k++) {

printw("\n [MPLS: Lbl %lu Exp %u S %u TTL %u]", mplss->label[k], mplss->exp[k], mplss->s[k], mplss->ttl[k]);

}

attroff(A_BOLD);

}

} else {

printw("???");

}

printw("\n");

}

move(2, 0);

}

static double factors[] = { 0.02, 0.05, 0.08, 0.15, 0.33, 0.50, 0.80, 1.00 };

static int scale[8];

static int low_ms, high_ms;

void mtr_gen_scale(void)

{

int *saved, i, max, at;

int range;

low_ms = 1000000;

high_ms = -1;

for (i = 0; i < 8; i++) {

scale[i] = 0;

}

max = net_max();

for (at = display_offset; at < max; at++) {

saved = net_saved_pings(at);

for (i = 0; i < SAVED_PINGS; i++) {

if (saved[i] < 0) continue;

if (saved[i] < low_ms) {

low_ms = saved[i];

}

if (saved[i] > high_ms) {

high_ms = saved[i];

}

}

}

range = high_ms - low_ms;

for (i = 0; i < 8; i++) {

scale[i] = low_ms + ((double)range * factors[i]);

}

}

static const char* block_map = ".123abc>";

void mtr_print_scaled(int ms)

{

int i;

for (i = 0; i < 8; i++) {

if (ms <= scale[i]) {

printw("%c", block_map[i]);

return;

}

}

printw(">");

}

void mtr_fill_graph(int at, int cols)

{

int* saved;

int i;

saved = net_saved_pings(at);

for (i = SAVED_PINGS-cols; i < SAVED_PINGS; i++) {

if (saved[i] == -2) {

printw(" ");

} else if (saved[i] == -1) {

attron(A_BOLD);

printw("?");

attroff(A_BOLD);

} else {

if (display_mode == 1) {

if (saved[i] > scale[6]) {

printw("%c", block_map[7]);

} else {

printw(".");

}

} else {

mtr_print_scaled(saved[i]);

}

}

}

}

void mtr_curses_graph(int startstat, int cols)

{

int max, at, y, x;

ip_t * addr;

char* name;

max = net_max();

for (at = display_offset; at < max; at++) {

printw("%2d. ", at+1);

addr = net_addr(at);

if (!addr) {

printw("???\n");

continue;

}

if (! net_up(at))

attron(A_BOLD);

name = dns_lookup(addr);

if (name) {

printw("%s", name);

} else {

printw("%s", strlongip( addr ) );

}

attroff(A_BOLD);

getyx(stdscr, y, x);

move(y, startstat);

printw(" ");

mtr_fill_graph(at, cols);

printw("\n");

}

}

void mtr_curses_redraw(void)

{

int maxx, maxy;

int startstat;

int rowstat;

time_t t;

int i, j;

int hd_len = 0;

char buf[1024];

char fmt[16];

erase();

getmaxyx(stdscr, maxy, maxx);

rowstat = 5;

move(0, 0);

attron(A_BOLD);

pwcenter("My traceroute [v" VERSION "]");

attroff(A_BOLD);

mvprintw(1, 0, "%s (%s)", LocalHostname, net_localaddr());

/*

printw("(tos=0x%X ", tos);

printw("psize=%d ", packetsize );

printw("bitpattern=0x%02X)", (unsigned char)(abs(bitpattern)));

if( cpacketsize > 0 ){

printw("psize=%d ", cpacketsize);

} else {

printw("psize=rand(%d,%d) ",MINPACKET, -cpacketsize);

}

if( bitpattern>=0 ){

printw("bitpattern=0x%02X)", (unsigned char)(bitpattern));

} else {

printw("bitpattern=rand(0x00-FF))");

}

*/

time(&t);

mvprintw(1, maxx-25, ctime(&t));

printw("Keys: ");

attron(A_BOLD); printw("H"); attroff(A_BOLD); printw("elp ");

attron(A_BOLD); printw("D"); attroff(A_BOLD); printw("isplay mode ");

attron(A_BOLD); printw("R"); attroff(A_BOLD); printw("estart statistics ");

attron(A_BOLD); printw("O"); attroff(A_BOLD); printw("rder of fields ");

attron(A_BOLD); printw("q"); attroff(A_BOLD); printw("uit\n");

if (display_mode == 0) {

/* changedByMin */

for (i=0; i < MAXFLD; i++ ) {

j = fld_index[fld_active[i]];

if (j < 0) continue;

sprintf( fmt, "%%%ds", data_fields[j].length );

sprintf( buf + hd_len, fmt, data_fields[j].title );

hd_len += data_fields[j].length;

}

attron(A_BOLD);

mvprintw(rowstat - 1, 0, " Host");

mvprintw(rowstat - 1, maxx-hd_len-1, "%s", buf);

mvprintw(rowstat - 2, maxx-hd_len-1, " Packets Pings");

attroff(A_BOLD);

move(rowstat, 0);

mtr_curses_hosts(maxx-hd_len-1);

} else {

/* David Sward, Jan 1999 */

char msg[80];

int max_cols = maxx<=SAVED_PINGS+30 ? maxx-30 : SAVED_PINGS;

startstat = 28;

sprintf(msg, " Last %3d pings", max_cols);

mvprintw(rowstat - 1, startstat, msg);

attroff(A_BOLD);

move(rowstat, 0);

mtr_gen_scale();

mtr_curses_graph(startstat, max_cols);

printw("\n");

attron(A_BOLD);

printw("Scale:");

attroff(A_BOLD);

for (i = 0; i < 7; i++) {

printw(" %c:%d ms", block_map[i], scale[i]/1000);

}

}

refresh();

}

void mtr_curses_open(void)

{

initscr();

raw();

noecho();

mtr_curses_redraw();

}

void mtr_curses_close(void)

{

printw("\n");

endwin();

}

void mtr_curses_clear(void)

{

mtr_curses_close();

mtr_curses_open();

}