NAME

       CMEncrypt - Send Encrypted Payload

SYNOPSIS

       CMEncrypt [options] [device] [device] [...]

DESCRIPTION

       Transmit  a  file  over powerline using CM_ENCRYPTED_PAYLOAD messages.  This program tests
       and demonstrates proper (or improper) message  routing  but  does  not  support  encrypted
       transmission.  All payloads are sent unencrypted at this time.

OPTIONS

       -A status
              The AVLN Status.  This indicates the current association status and capabilities of
              the sending station.  Permitted values are 0 through 255 but only value 0 through 5
              and  8  are  recognized  by  the  firmware.   Values  may  be  entered  in decimal,
              hexadecimal or binary format.  Hexadecimal value are prefixed with  "0x"  or  "0X".
              Binary values are prefixed with "0b" or "0B".  The default is 0.

       -f file
              The  name  of  the  payload file.  File content may be text or binary and forms the
              payload of one or more messages.  Payloads are transmitted unencrypted when PID  is
              4 and PEKS is 15 which is default.

       -K PEKS
              The  Payload  Encryption  Key Select.  This value indicates the key used to encrypt
              the payload.  Permitted values are 0 through 15.  Values may be entered in decimal,
              hexadecimal  or  binary  format.  Hexadecimal value are prefixed with "0x" or "0X".
              Binary values are prefixed  with  "0b"  or  "0B"..   The  default  is  15  for  "No
              Encryption".

       -P PID The  Protocol  Identifier.   This value detemines how the payload is interpreted by
              powerline devices.  Permitted values are 0 through 4.  The default is  4  for  "HLE
              Protocol".

       -v     Print incoming and outgoing Ethernet frames in hex dump format on stdout.

       -?,--help
              Print  program  help  summary  on  stdout.  This option takes precedence over other
              options on the command line.

       -?,--version
              Print program version information on stdout.  This  option  takes  precedence  over
              other  options  on  the command line.  Use this option when sending screen dumps to
              Atheros Technical Support so that they know exactly  which  version  of  the  Linux
              Toolkit you are using.

ARGUMENTS

       device The  Media  Access  Control (MAC) address of a remote host, not a powerline device.
              Addresses are 6 hexadecimal octets optionally separated by colon.  For example, the
              addresses "00b052000001", "00:b0:52:00:00:01" and "00b052:000001" are all valid and
              equivalent.   For  convenience,  the   symbolic   address   "local"   resolves   to
              "00:b0:52:00:00:01"  and  the symbolic addresses "all" and "broadcast" both resolve
              to "ff:ff:ff:ff:ff:ff".

INTERNALS

       This program lets the user specify some CM_ENCRYPTED_PAYLOAD fields but not  others.   The
       following  are  fields  that  the user cannot specify.  The program automatically computes
       these values.

       PRN    The Protocol Run Number.  This is a random number used to distinguish between  runs
              having the same protocol.  This program uses the system time variable.

       UUID   The Universally Unique Identifier.  This program uses the left-most 16 bytes of the
              SHA256 digest for the payload.

REFERENCES

       Consult the HomePlug AV Specification or Atheros Firmware Technical Reference  Manual  for
       more information.

EXAMPLES

       The  following  example  transmits file myfile.txt to host 00:85:73:00:94:01 in unecrypted
       format because that is the program default.  The remote address is required and refers  to
       the ultimate recipient, not the local device.

          #  CMEncrypt  -f  myfile.txt  00:85:73:00:94:01  The  next  example  does  the same but
       specifies the program defaults.  Observe that operands can be expressed in decimal, binary
       or hexadecimal format.

          # CMEncrypt -f myfile.txt -A 0 -P 0b0100 -K 0x0F 00:85:73:00:94:01

DISCLAIMER

       Atheros   HomePlug  AV  Vendor  Specific  Management  Message  structure  and  content  is
       proprietary to Qualcomm Atheros, Ocala FL USA.  Consequently, public  information  is  not
       available.   Qualcomm Atheros reserves the right to modify message structure or content in
       future firmware releases without any obligation to notify  or  compensate  users  of  this
       program.

SEE ALSO

       None.

CREDITS

        Charles Maier