Readme file for MOCKS 0.0.2
		written by Dan Horobeanu <[email protected]>
				25 Nov 2004


Table of contents
*****************

    1. What is MOCKS?
    2. MOCKS Files
    3. Compiling and Running MOCKS
    4. Configuring MOCKS
    5. Suggestions and Bug Reports
    6. License Agreement & Discalimer
    
    
    
1. What is MOCKS?
*****************
    MOCKS stands for My Own soCKs Server.
    It is an RFC1928 compliant SOCKSv5 server. Momentarily only TCP
IPv4 connections are supported but, depending on the number of people
interested in using MOCKS, support for UDP and IPv6 might be implemented
in future versions.
    So far MOCKS 0.0.2 has been tested with Linux 2.4.26. 


2. MOCKS Files
**************
    The MOCKS package contains these files:
	* README	   This file
	* COPYING	   The GNU General Public License version 2
	* TODO		   Text file containing notes on what features
			   should be implemented in future versions of
			   MOCKS.
	* src/child.c    |
	* src/child.h    |
	* src/error.c 	 |
	* src/error.h    | 
	* src/misc.c     |  MOCKS source code
	* src/misc.h     |  
	* src/socks.c    |
	* src/socks.h    |
	* src/up_proxy.c |
	* src/up_proxy.h |
        * build            Build script to compile MOCKS
	* mocks.conf       MOCKS sample configuration file
	* mocks		   The MOCKS program as an ELF executable compiled
			   with gcc 3.2.2 under Linux 2.4.26
	
	
3. Compiling and Running MOCKS
******************************	
    Due to the simplicity of MOCKS, a make file was uncalled for. You
can compile MOCKS with the build script included in this package (build) 
or with the following command:

	gcc -lnsl -o mocks child.c error.c misc.c socksd.c up_proxy.c

    If you encounter any problems during compilation don't hesitate to
contact me (see section 5 of this file for details).
    You can then control MOCKS like this:
    Starting server:
			./mocks start
    Shutting it down:
			./mocks shutdown
    Get command line help:
			./mocks --help


4. Configuring MOCKS
********************
    You can customize MOCKS via a configuration file. The default
configuration file is 'mocks.conf' located in the same directory as
the 'mocks' executable. This distribution comes with an example of 
such a file. You can specify another configuration file with the
'-c' command line option.
    mocks.conf is a text file in which each line of text has the
following syntax:
	VAR = VALUE
where, VAR is the name of the global variable you want to set and
VALUE is the value you want to set it to. VAR can only be one of 
the following:
    
    BACKLOG			Backlog value for listen().
				Default: 5

    BIND_TIMEOUT		Maximum duration of a BIND SOCKS command
				completion, in seconds. In other words,
				how long to keep a listening socket opened
				for the client if no connection arrives
				for it.
				Default: 30

    BUFFER_SIZE			Length, in bytes, of buffer used in the
				socket data traffic.
				Default: 65536

    CONNECTION_IDLE_TIMEOUT	Maximum duration in which no data traffic
				occures on a client-target connection, in
				seconds.
				Default: 300

    LOG_FILE			Specifies a log file that MOCKS should
				use to log special events and errors.
				Default: mocks.log

    MAX_CONNECTIONS		Maximum number of client connections
				simultaneously active.
				Default: 50

    NEGOTIATION_TIMEOUT		Maximum allowed duration of the SOCKSv5
				client-server negotiation in seconds. If 
				a client failes to state its business 
				during this amount of time, the connection
				will be terminated.
				Default: 5

    PID_FILE			Specifes the file where MOCKS should
				write its PID (process ID)  when it is
				running.
				Default: mocks.pid

    MOCKS_ADDR                  The IP address MOCKS should bind to.
				Default: 0.0.0.0 (bind to all local interfaces)

    PORT			The port on which the SOCKS server
				should listen for client connctions.
				Default: 1080

    SHUTDOWN_TIMEOUT		How long to wait for MOCKS daemon to shut
				down cleanly before killing it. This is used
				when mocks executable is invoked with the 
				'shutdown' action and is given in seconds.
				Default: 3

    FILTER_POLICY               MOCKS's client filter policy. This can be
                                one of ALLOW or DENY and tells MOCKS what 
				to do when a client attempts connection.
				One can then use FILTER_EXCEPTION variables
				to modify MOCKS behaviour for some specific
				clients. For instance, if you set FILTER_POLICY
				to DENY, all clients will be denied
				connection except for those that match 
				one or more FILTER_EXCEPTION statements.
				Default: ALLOW

    FILTER_EXCEPTION		This is meant to match a range of IP addresses.
				It is basically an IP address/mask pair.
				The mask is optional (that is, both
				'10.20.31.0/24' and '10.20.31.52' are valid
				values of this variable). When used, the mask
				is the number of heading bits that a client
				IP address and the FILTER_EXCEPTION IP address
				must have in common to yield a match. If no
				mask is specified, 32 is assumed (exact
				IP address, no subnet).
				There may be more than one FILTER_EXCEPTION 
				statements. 
				Default: none

    UP_PROXY_TYPE		MOCKS can use an upstream proxy to relay all
				the traffic from its clients. For now, 
				upstream proxy support has been implemented
				for HTTP CONNECT, SOCKS 4 and 5 proxies. This
				variable selects the upstream proxy type.
				Valid values are: HTTPCONNECT, SOCKS4 and 
                                SOCKS5.
				Setting this variable requires that you also
				set UP_PROXY_ADDR and UP_PROXY_PORT!
				Default: none
				
    UP_PROXY_ADDR		IP address of the upstream proxy that is to
				be used for further traffic relaying.
				Setting this variable requires that you also
				set UP_PROXY_TYPE and UP_PROXY_PORT!
				Default: none

    UP_PROXY_PORT		TCP port of upstream proxy server.
				Setting this variable requires that you also
				set UP_PROXY_TYPE and UP_PROXY_ADDR!
				Default: none
		
    UP_PROXY_USER		MOCKS supports user/passwd authentication to
				the upstream proxy. This variable is optional
				and specifies the user name MOCKS should use
				to authenticate. When this is not set, MOCKS
				will not attempt authetication.
				Default: none

    UP_PROXY_PASSWD		Password to use when authenticating to an
				upstream proxy. This is used together with
				UP_PROXY_USER in an authentication attempt.
				Default: none


5. Suggestions and Bug Reports
******************************
    For any suggestions, bug reports or just for telling me you are using
MOCKS, email me, Dan Horobeanu at:
    
			[email protected]
    
    
6. License Agreement & Disclaimer
**********************************
    MOCKS is distributed under the GNU General Pulic License (GPL). For
a copy of that license, please read the file COPYING, which should have
been distributed with this software.