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Diffstat (limited to 'examples/scripts/nmb/findsmb')
| -rwxr-xr-x | examples/scripts/nmb/findsmb | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/examples/scripts/nmb/findsmb b/examples/scripts/nmb/findsmb new file mode 100755 index 0000000..5c668f3 --- /dev/null +++ b/examples/scripts/nmb/findsmb @@ -0,0 +1,160 @@ +#!/usr/bin/env perl +# +# Prints info on all smb responding machines on a subnet. +# This script needs to be run on a machine without nmbd running and be +# run as root to get correct info from WIN95 clients. +# +# syntax: +# findsmb [-d|-D] [-r] [subnet broadcast address] +# +# with no argument it will list machines on the current subnet +# +# There will be a "+" in front of the workgroup name for machines that are +# local master browsers for that workgroup. There will be an "*" in front +# of the workgroup name for machines that are the domain master browser for +# that workgroup. +# +# Options: +# +# -d|-D enable debug +# -r add -r option to nmblookup when finding netbios name +# + +$SAMBABIN = "/usr/bin"; + +for ($i = 0; $i < 2; $i++) { # test for -d and -r options + $_ = shift; + if (m/-d|-D/) { + $DEBUG = 1; + } elsif (m/-r/) { + $R_OPTION = "-r"; + } +} + +if ($_) { # set broadcast address if it was specified + $BCAST = "-B $_"; +} + + +###################################################################### +# do numeric sort on last field of IP address +sub ipsort +{ + @t1 = split(/\./,$a); + @t2 = split(/\./,$b); + @t1[3] <=> @t2[3]; +} +###################################################################### + +# look for all machines that respond to a name lookup + +open(NMBLOOKUP,"$SAMBABIN/nmblookup $BCAST '*' --debuglevel=0|") || + die("Can't run nmblookup '*'.\n"); + +# get rid of all lines that are not a response IP address, +# strip everything but IP address and sort by last field in address + +@ipaddrs = sort ipsort grep(s/ \*<00>.*$//,<NMBLOOKUP>); + +# print header info +print "\n *=DMB\n"; +print " +=LMB\n"; +print "IP ADDR NETBIOS NAME WORKGROUP/OS/VERSION $BCAST\n"; +print "---------------------------------------------------------------------\n"; + +foreach $ip (@ipaddrs) # loop through each IP address found +{ + $ip =~ s/\n//; # strip newline from IP address + + # find the netbios names registered by each machine + + open(NMBLOOKUP,"$SAMBABIN/nmblookup $R_OPTION -A $ip --debuglevel=0|") || + die("Can't get nmb name list.\n"); + @nmblookup = <NMBLOOKUP>; + close NMBLOOKUP; + + # get the first <00> name + + @name = grep(/<00>/,@nmblookup); + $_ = @name[0]; + + if ($_) { # we have a netbios name + if (/GROUP/) { # is it a group name + ($name, $aliases, $type, $length, @addresses) = + gethostbyaddr(pack('C4',split('\.',$ip)),2); + if (! $name) { # could not get name + $name = "unknown nis name"; + } + } else { + # The Netbios name can contain lot of characters also '<' '>' + # and spaces. The following cure inside name space but not + # names starting or ending with spaces + /(.{1,15})\s+<00>\s+/; + $name = $1; + $name =~ s/^\s+//g; + } + + # do an smbclient command on the netbios name. + + if ( "$name" ) { + open(SMB,"$SAMBABIN/smbclient -L $name -I $ip -N --debuglevel=1 2>&1 |") || + die("Can't do smbclient command.\n"); + @smb = <SMB>; + close SMB; + + if ($DEBUG) { # if -d flag print results of nmblookup and smbclient + print "===============================================================\n"; + print @nmblookup; + print @smb; + } + + # look for the OS= string + + @info = grep(/OS=/,@smb); + $_ = @info[0]; + if ($_) { # we found response + s/Domain=|OS=|Server=|\n//g; # strip out descriptions to make line shorter + + } else { # no OS= string in response (WIN95 client) + + # for WIN95 clients get workgroup name from nmblookup response + @name = grep(/<00> - <GROUP>/,@nmblookup); + $_ = @name[0]; + if ($_) { + # Same as before for space and characters + /(.{1,15})\s+<00>\s+/; + $_ = "[$1]"; + } else { + $_ = "Unknown Workgroup"; + } + } + } + + # see if machine registered a local master browser name + if (grep(/<1d>/,@nmblookup)) { + $master = '+'; # indicate local master browser + if (grep(/<1b>/,@nmblookup)) { # how about domain master browser? + $master = '*'; # indicate domain master browser + } + } else { + $master = ' '; # not a browse master + } + + # line up info in 3 columns + + print "$ip".' 'x(16-length($ip))."$name".' 'x(14-length($name))."$master"."$_\n"; + + } else { # no netbios name found + # try getting the host name + ($name, $aliases, $type, $length, @addresses) = + gethostbyaddr(pack('C4',split('\.',$ip)),2); + if (! $name) { # could not get name + $name = "unknown nis name"; + } + if ($DEBUG) { # if -d flag print results of nmblookup + print "===============================================================\n"; + print @nmblookup; + } + print "$ip".' 'x(16-length($ip))."$name\n"; + } +} |