[jcifs] Scanning networks using the master browser via jcifs

[Anish Acharya]

We need to implement something that does the following through jCIFS,
but unfortunately jCIFS doesn't seem to handle multiple responses for a
request (only one host is returned when looking for a master browser,
and one host is returned when looking for members of a domain).

In a paragraph :

	We need to determine what WORKGROUPS are on the network,
	determine what hosts are part of the WORKGROUP, and then
	determine what shares are on each of those machines

In pseudocode

	Get All MASTER BROWSERS
	For each Master Browser
		Determine MB's domain
		Get List of members of the Domain
		For each member
			Determine the names of the available shares
		End-For
	End-For

An implementation that could be cludged with shell, awk and co..

Get all master browsers on the system

$  nmblookup  -M "-"
querying __MSBROWSE__ on 10.255.255.255
10.1.1.86 __MSBROWSE__<01>
10.1.1.59 __MSBROWSE__<01>
10.1.1.88 __MSBROWSE__<01>
10.1.1.67 __MSBROWSE__<01>
10.1.1.87 __MSBROWSE__<01>
10.1.1.3 __MSBROWSE__<01>

Choose each of the MB :

$  nmblookup -M "-" -S -U 10.1.1.3
querying __MSBROWSE__ on 10.1.1.3
10.1.1.3 __MSBROWSE__<01>
Looking up status of 10.1.1.3
	MAIN-SRV        <00> -         M <ACTIVE>
	MAIN-SRV        <20> -         M <ACTIVE>
	CASERO          <00> - <GROUP> M <ACTIVE>
	CASERO          <1c> - <GROUP> M <ACTIVE>
	CASERO          <1b> -         M <ACTIVE>
	CASERO          <1e> - <GROUP> M <ACTIVE>
	MAIN-SRV        <03> -         M <ACTIVE>
	MAIN-SRV        <6a> -         M <ACTIVE>
	INet~Services   <1c> - <GROUP> M <ACTIVE>
	IS~MAIN-SRV     <00> -         M <ACTIVE>
	CASERO          <1d> -         M <ACTIVE>
	..__MSBROWSE__. <01> - <GROUP> M <ACTIVE>
	MAIN-SRV        <87> -         M <ACTIVE>

Get the DOMAIN or WORKGROUP (<1b> or <1d>)

$  nmblookup  CASERO
querying CASERO on 10.255.255.255
10.1.1.3 CASERO<00>
10.1.1.55 CASERO<00>
10.1.1.104 CASERO<00>

Choose each of the hosts.

$ smbclient -L 10.1.1.55
added interface ip=10.1.1.99 bcast=10.255.255.255 nmask=255.0.0.0
Password:
Doing spnego session setup (blob length=104)
OS=[Windows 5.1] Server=[Windows 2000 LAN Manager]

	Sharename      Type      Comment
	---------      ----      -------
	IPC$           IPC       Remote IPC
	SharedDocs     Disk
	SQL BACKUP     Disk


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